diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..53f8bec
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,20 @@
+ndk_headers {
+    name: "libcamera2ndk_headers",
+    from: "include/camera/ndk/",
+    to: "camera",
+    srcs: ["include/camera/ndk/**/*.h"],
+    license: "NOTICE",
+}
+
+ndk_headers {
+    name: "libmediandk_headers",
+    from: "include/ndk/",
+    to: "media",
+    srcs: ["include/ndk/**/*.h"],
+    license: "NOTICE",
+}
+
+subdirs = [
+    "camera/ndk",
+    "media/*",
+]
diff --git a/CleanSpec.mk b/CleanSpec.mk
index d0890fe..361686c 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -59,6 +59,24 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/libaudiopolicymanager.so)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudiopolicyservice_intermediates)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudiopolicymanager_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/liboboe.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib64/liboboe.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/liboboe*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/liboboe*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj_arm/STATIC_LIBRARIES/liboboe*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj_arm/SHARED_LIBRARIES/liboboe*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/bin/mediacodec)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/etc/init/mediacodec.rc)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/libeffects.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib64/libeffects.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libeffects_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/soundfx/libeffectproxy.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/soundfx/libldnhncr.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/soundfx/libdownmix.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/soundfx/libvisualizer.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/soundfx/libreverbwrapper.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/soundfx/libbundlewrapper.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/soundfx/libaudiopreprocessing.so)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
diff --git a/camera/Android.mk b/camera/Android.mk
index 1a3382f..91d87ed 100644
--- a/camera/Android.mk
+++ b/camera/Android.mk
@@ -58,8 +58,6 @@
 	libutils \
 	liblog \
 	libbinder \
-	libhardware \
-	libui \
 	libgui \
 	libcamera_metadata \
 
@@ -67,11 +65,11 @@
 	system/media/camera/include \
 	system/media/private/camera/include \
 	frameworks/native/include/media/openmax \
-	frameworks/av/include/camera
+	$(LOCAL_PATH)/include/camera
 
 LOCAL_EXPORT_C_INCLUDE_DIRS := \
 	system/media/camera/include \
-	frameworks/av/include/camera
+	$(LOCAL_PATH)/include/camera
 
 LOCAL_CFLAGS += -Werror -Wall -Wextra
 
diff --git a/camera/Camera.cpp b/camera/Camera.cpp
index bf9904c..c6c35ef 100644
--- a/camera/Camera.cpp
+++ b/camera/Camera.cpp
@@ -240,6 +240,14 @@
     c->releaseRecordingFrameHandle(handle);
 }
 
+void Camera::releaseRecordingFrameHandleBatch(
+        const std::vector<native_handle_t*> handles) {
+    ALOGV("releaseRecordingFrameHandleBatch");
+    sp <::android::hardware::ICamera> c = mCamera;
+    if (c == 0) return;
+    c->releaseRecordingFrameHandleBatch(handles);
+}
+
 // get preview state
 bool Camera::previewEnabled()
 {
@@ -418,6 +426,37 @@
     }
 }
 
+void Camera::recordingFrameHandleCallbackTimestampBatch(
+        const std::vector<nsecs_t>& timestamps,
+        const std::vector<native_handle_t*>& handles)
+{
+    // If recording proxy listener is registered, forward the frame and return.
+    // The other listener (mListener) is ignored because the receiver needs to
+    // call releaseRecordingFrameHandle.
+    sp<ICameraRecordingProxyListener> proxylistener;
+    {
+        Mutex::Autolock _l(mLock);
+        proxylistener = mRecordingProxyListener;
+    }
+    if (proxylistener != NULL) {
+        proxylistener->recordingFrameHandleCallbackTimestampBatch(timestamps, handles);
+        return;
+    }
+
+    sp<CameraListener> listener;
+    {
+        Mutex::Autolock _l(mLock);
+        listener = mListener;
+    }
+
+    if (listener != NULL) {
+        listener->postRecordingFrameHandleTimestampBatch(timestamps, handles);
+    } else {
+        ALOGW("No listener was set. Drop a batch of recording frames.");
+        releaseRecordingFrameHandleBatch(handles);
+    }
+}
+
 sp<ICameraRecordingProxy> Camera::getRecordingProxy() {
     ALOGV("getProxy");
     return new RecordingProxy(this);
@@ -448,6 +487,12 @@
     mCamera->releaseRecordingFrameHandle(handle);
 }
 
+void Camera::RecordingProxy::releaseRecordingFrameHandleBatch(
+        const std::vector<native_handle_t*>& handles) {
+    ALOGV("RecordingProxy::releaseRecordingFrameHandleBatch");
+    mCamera->releaseRecordingFrameHandleBatch(handles);
+}
+
 Camera::RecordingProxy::RecordingProxy(const sp<Camera>& camera)
 {
     mCamera = camera;
diff --git a/camera/CameraBase.cpp b/camera/CameraBase.cpp
index 8a18d2f..c53e6c3 100644
--- a/camera/CameraBase.cpp
+++ b/camera/CameraBase.cpp
@@ -39,7 +39,7 @@
 
 namespace hardware {
 
-status_t CameraInfo::writeToParcel(Parcel* parcel) const {
+status_t CameraInfo::writeToParcel(android::Parcel* parcel) const {
     status_t res;
     res = parcel->writeInt32(facing);
     if (res != OK) return res;
@@ -47,7 +47,7 @@
     return res;
 }
 
-status_t CameraInfo::readFromParcel(const Parcel* parcel) {
+status_t CameraInfo::readFromParcel(const android::Parcel* parcel) {
     status_t res;
     res = parcel->readInt32(&facing);
     if (res != OK) return res;
@@ -55,8 +55,26 @@
     return res;
 }
 
+status_t CameraStatus::writeToParcel(android::Parcel* parcel) const {
+    auto res = parcel->writeString16(String16(cameraId));
+    if (res != OK) return res;
+
+    res = parcel->writeInt32(status);
+    return res;
 }
 
+status_t CameraStatus::readFromParcel(const android::Parcel* parcel) {
+    String16 tempCameraId;
+    auto res = parcel->readString16(&tempCameraId);
+    if (res != OK) return res;
+    cameraId = String8(tempCameraId);
+
+    res = parcel->readInt32(&status);
+    return res;
+}
+
+} // namespace hardware
+
 namespace {
     sp<::android::hardware::ICameraService> gCameraService;
     const int                 kCameraServicePollDelay = 500000; // 0.5s
@@ -138,7 +156,7 @@
         c->mStatus = NO_ERROR;
     } else {
         ALOGW("An error occurred while connecting to camera %d: %s", cameraId,
-                (cs != nullptr) ? "Service not available" : ret.toString8().string());
+                (cs == nullptr) ? "Service not available" : ret.toString8().string());
         c.clear();
     }
     return c;
@@ -239,24 +257,6 @@
     return res.isOk() ? OK : res.serviceSpecificErrorCode();
 }
 
-template <typename TCam, typename TCamTraits>
-status_t CameraBase<TCam, TCamTraits>::addServiceListener(
-        const sp<::android::hardware::ICameraServiceListener>& listener) {
-    const sp<::android::hardware::ICameraService>& cs = getCameraService();
-    if (cs == 0) return UNKNOWN_ERROR;
-    binder::Status res = cs->addListener(listener);
-    return res.isOk() ? OK : res.serviceSpecificErrorCode();
-}
-
-template <typename TCam, typename TCamTraits>
-status_t CameraBase<TCam, TCamTraits>::removeServiceListener(
-        const sp<::android::hardware::ICameraServiceListener>& listener) {
-    const sp<::android::hardware::ICameraService>& cs = getCameraService();
-    if (cs == 0) return UNKNOWN_ERROR;
-    binder::Status res = cs->removeListener(listener);
-    return res.isOk() ? OK : res.serviceSpecificErrorCode();
-}
-
 template class CameraBase<Camera>;
 
 } // namespace android
diff --git a/camera/CameraMetadata.cpp b/camera/CameraMetadata.cpp
index 373b94e..e143e05 100644
--- a/camera/CameraMetadata.cpp
+++ b/camera/CameraMetadata.cpp
@@ -170,7 +170,7 @@
 }
 
 status_t CameraMetadata::checkType(uint32_t tag, uint8_t expectedType) {
-    int tagType = get_camera_metadata_tag_type(tag);
+    int tagType = get_local_camera_metadata_tag_type(tag, mBuffer);
     if ( CC_UNLIKELY(tagType == -1)) {
         ALOGE("Update metadata entry: Unknown tag %d", tag);
         return INVALID_OPERATION;
@@ -178,7 +178,7 @@
     if ( CC_UNLIKELY(tagType != expectedType) ) {
         ALOGE("Mismatched tag type when updating entry %s (%d) of type %s; "
                 "got type %s data instead ",
-                get_camera_metadata_tag_name(tag), tag,
+                get_local_camera_metadata_tag_name(tag, mBuffer), tag,
                 camera_metadata_type_names[tagType],
                 camera_metadata_type_names[expectedType]);
         return INVALID_OPERATION;
@@ -297,7 +297,7 @@
         ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
         return INVALID_OPERATION;
     }
-    int type = get_camera_metadata_tag_type(tag);
+    int type = get_local_camera_metadata_tag_type(tag, mBuffer);
     if (type == -1) {
         ALOGE("%s: Tag %d not found", __FUNCTION__, tag);
         return BAD_VALUE;
@@ -332,8 +332,9 @@
 
     if (res != OK) {
         ALOGE("%s: Unable to update metadata entry %s.%s (%x): %s (%d)",
-                __FUNCTION__, get_camera_metadata_section_name(tag),
-                get_camera_metadata_tag_name(tag), tag, strerror(-res), res);
+                __FUNCTION__, get_local_camera_metadata_section_name(tag, mBuffer),
+                get_local_camera_metadata_tag_name(tag, mBuffer), tag,
+                strerror(-res), res);
     }
 
     IF_ALOGV() {
@@ -392,16 +393,18 @@
     } else if (res != OK) {
         ALOGE("%s: Error looking for entry %s.%s (%x): %s %d",
                 __FUNCTION__,
-                get_camera_metadata_section_name(tag),
-                get_camera_metadata_tag_name(tag), tag, strerror(-res), res);
+                get_local_camera_metadata_section_name(tag, mBuffer),
+                get_local_camera_metadata_tag_name(tag, mBuffer),
+                tag, strerror(-res), res);
         return res;
     }
     res = delete_camera_metadata_entry(mBuffer, entry.index);
     if (res != OK) {
         ALOGE("%s: Error deleting entry %s.%s (%x): %s %d",
                 __FUNCTION__,
-                get_camera_metadata_section_name(tag),
-                get_camera_metadata_tag_name(tag), tag, strerror(-res), res);
+                get_local_camera_metadata_section_name(tag, mBuffer),
+                get_local_camera_metadata_tag_name(tag, mBuffer),
+                tag, strerror(-res), res);
     }
     return res;
 }
diff --git a/camera/CameraUtils.cpp b/camera/CameraUtils.cpp
index 1676be1..67fc116 100644
--- a/camera/CameraUtils.cpp
+++ b/camera/CameraUtils.cpp
@@ -45,7 +45,7 @@
     }
 
     camera_metadata_ro_entry_t entryFacing = staticInfo.find(ANDROID_LENS_FACING);
-    if (entry.count == 0) {
+    if (entryFacing.count == 0) {
         ALOGE("%s: Can't find android.lens.facing in static metadata!", __FUNCTION__);
         return INVALID_OPERATION;
     }
diff --git a/camera/CaptureResult.cpp b/camera/CaptureResult.cpp
index 0a447e7..e6c0d00 100644
--- a/camera/CaptureResult.cpp
+++ b/camera/CaptureResult.cpp
@@ -26,7 +26,7 @@
     return requestId >= 0;
 }
 
-status_t CaptureResultExtras::readFromParcel(const Parcel *parcel) {
+status_t CaptureResultExtras::readFromParcel(const android::Parcel *parcel) {
     if (parcel == NULL) {
         ALOGE("%s: Null parcel", __FUNCTION__);
         return BAD_VALUE;
@@ -43,7 +43,7 @@
     return OK;
 }
 
-status_t CaptureResultExtras::writeToParcel(Parcel *parcel) const {
+status_t CaptureResultExtras::writeToParcel(android::Parcel *parcel) const {
     if (parcel == NULL) {
         ALOGE("%s: Null parcel", __FUNCTION__);
         return BAD_VALUE;
@@ -69,7 +69,7 @@
     mMetadata = otherResult.mMetadata;
 }
 
-status_t CaptureResult::readFromParcel(Parcel *parcel) {
+status_t CaptureResult::readFromParcel(android::Parcel *parcel) {
 
     ALOGV("%s: parcel = %p", __FUNCTION__, parcel);
 
@@ -100,7 +100,7 @@
     return OK;
 }
 
-status_t CaptureResult::writeToParcel(Parcel *parcel) const {
+status_t CaptureResult::writeToParcel(android::Parcel *parcel) const {
 
     ALOGV("%s: parcel = %p", __FUNCTION__, parcel);
 
diff --git a/camera/ICamera.cpp b/camera/ICamera.cpp
index 0680d7c..f0945c7 100644
--- a/camera/ICamera.cpp
+++ b/camera/ICamera.cpp
@@ -55,12 +55,13 @@
     SET_VIDEO_BUFFER_MODE,
     SET_VIDEO_BUFFER_TARGET,
     RELEASE_RECORDING_FRAME_HANDLE,
+    RELEASE_RECORDING_FRAME_HANDLE_BATCH,
 };
 
 class BpCamera: public BpInterface<ICamera>
 {
 public:
-    BpCamera(const sp<IBinder>& impl)
+    explicit BpCamera(const sp<IBinder>& impl)
         : BpInterface<ICamera>(impl)
     {
     }
@@ -172,6 +173,24 @@
         native_handle_delete(handle);
     }
 
+    void releaseRecordingFrameHandleBatch(const std::vector<native_handle_t*>& handles) {
+        ALOGV("releaseRecordingFrameHandleBatch");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        uint32_t n = handles.size();
+        data.writeUint32(n);
+        for (auto& handle : handles) {
+            data.writeNativeHandle(handle);
+        }
+        remote()->transact(RELEASE_RECORDING_FRAME_HANDLE_BATCH, data, &reply);
+
+        // Close the native handle because camera received a dup copy.
+        for (auto& handle : handles) {
+            native_handle_close(handle);
+            native_handle_delete(handle);
+        }
+    }
+
     status_t setVideoBufferMode(int32_t videoBufferMode)
     {
         ALOGV("setVideoBufferMode: %d", videoBufferMode);
@@ -378,6 +397,19 @@
             releaseRecordingFrameHandle(data.readNativeHandle());
             return NO_ERROR;
         } break;
+        case RELEASE_RECORDING_FRAME_HANDLE_BATCH: {
+            ALOGV("RELEASE_RECORDING_FRAME_HANDLE_BATCH");
+            CHECK_INTERFACE(ICamera, data, reply);
+            // releaseRecordingFrameHandle will be responsble to close the native handle.
+            uint32_t n = data.readUint32();
+            std::vector<native_handle_t*> handles;
+            handles.reserve(n);
+            for (uint32_t i = 0; i < n; i++) {
+                handles.push_back(data.readNativeHandle());
+            }
+            releaseRecordingFrameHandleBatch(handles);
+            return NO_ERROR;
+        } break;
         case SET_VIDEO_BUFFER_MODE: {
             ALOGV("SET_VIDEO_BUFFER_MODE");
             CHECK_INTERFACE(ICamera, data, reply);
diff --git a/camera/ICameraClient.cpp b/camera/ICameraClient.cpp
index 68cbfb8..7e6297c 100644
--- a/camera/ICameraClient.cpp
+++ b/camera/ICameraClient.cpp
@@ -32,12 +32,13 @@
     DATA_CALLBACK,
     DATA_CALLBACK_TIMESTAMP,
     RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP,
+    RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH,
 };
 
 class BpCameraClient: public BpInterface<ICameraClient>
 {
 public:
-    BpCameraClient(const sp<IBinder>& impl)
+    explicit BpCameraClient(const sp<IBinder>& impl)
         : BpInterface<ICameraClient>(impl)
     {
     }
@@ -91,6 +92,29 @@
         remote()->transact(RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP, data, &reply,
                 IBinder::FLAG_ONEWAY);
     }
+
+    void recordingFrameHandleCallbackTimestampBatch(
+            const std::vector<nsecs_t>& timestamps,
+            const std::vector<native_handle_t*>& handles) {
+        ALOGV("recordingFrameHandleCallbackTimestampBatch");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
+        uint32_t n = timestamps.size();
+        if (n != handles.size()) {
+            ALOGE("%s: size of timestamps(%zu) and handles(%zu) mismatch!",
+                    __FUNCTION__, timestamps.size(), handles.size());
+            return;
+        }
+        data.writeUint32(n);
+        for (auto ts : timestamps) {
+            data.writeInt64(ts);
+        }
+        for (auto& handle : handles) {
+            data.writeNativeHandle(handle);
+        }
+        remote()->transact(RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH, data, &reply,
+                IBinder::FLAG_ONEWAY);
+    }
 };
 
 IMPLEMENT_META_INTERFACE(CameraClient, "android.hardware.ICameraClient");
@@ -154,6 +178,41 @@
             recordingFrameHandleCallbackTimestamp(timestamp, handle);
             return NO_ERROR;
         } break;
+        case RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH: {
+            ALOGV("RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH");
+            CHECK_INTERFACE(ICameraClient, data, reply);
+            uint32_t n = 0;
+            status_t res = data.readUint32(&n);
+            if (res != OK) {
+                ALOGE("%s: Failed to read batch size: %s (%d)", __FUNCTION__, strerror(-res), res);
+                return BAD_VALUE;
+            }
+            std::vector<nsecs_t> timestamps;
+            std::vector<native_handle_t*> handles;
+            timestamps.reserve(n);
+            handles.reserve(n);
+            for (uint32_t i = 0; i < n; i++) {
+                res = data.readInt64(&timestamps[i]);
+                if (res != OK) {
+                    ALOGE("%s: Failed to read timestamp[%d]: %s (%d)",
+                            __FUNCTION__, i, strerror(-res), res);
+                    return BAD_VALUE;
+                }
+            }
+            for (uint32_t i = 0; i < n; i++) {
+                native_handle_t* handle = data.readNativeHandle();
+                if (handle == nullptr) {
+                    ALOGE("%s: Received a null native handle at handles[%d]",
+                            __FUNCTION__, i);
+                    return BAD_VALUE;
+                }
+                handles.push_back(handle);
+            }
+
+            // The native handle will be freed in BpCamera::releaseRecordingFrameHandleBatch.
+            recordingFrameHandleCallbackTimestampBatch(timestamps, handles);
+            return NO_ERROR;
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/camera/ICameraRecordingProxy.cpp b/camera/ICameraRecordingProxy.cpp
index 63c4b1d..bd6af75 100644
--- a/camera/ICameraRecordingProxy.cpp
+++ b/camera/ICameraRecordingProxy.cpp
@@ -32,13 +32,14 @@
     STOP_RECORDING,
     RELEASE_RECORDING_FRAME,
     RELEASE_RECORDING_FRAME_HANDLE,
+    RELEASE_RECORDING_FRAME_HANDLE_BATCH,
 };
 
 
 class BpCameraRecordingProxy: public BpInterface<ICameraRecordingProxy>
 {
 public:
-    BpCameraRecordingProxy(const sp<IBinder>& impl)
+    explicit BpCameraRecordingProxy(const sp<IBinder>& impl)
         : BpInterface<ICameraRecordingProxy>(impl)
     {
     }
@@ -82,6 +83,24 @@
         native_handle_close(handle);
         native_handle_delete(handle);
     }
+
+    void releaseRecordingFrameHandleBatch(const std::vector<native_handle_t*>& handles) {
+        ALOGV("releaseRecordingFrameHandleBatch");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraRecordingProxy::getInterfaceDescriptor());
+        uint32_t n = handles.size();
+        data.writeUint32(n);
+        for (auto& handle : handles) {
+            data.writeNativeHandle(handle);
+        }
+        remote()->transact(RELEASE_RECORDING_FRAME_HANDLE_BATCH, data, &reply);
+
+        // Close the native handle because camera received a dup copy.
+        for (auto& handle : handles) {
+            native_handle_close(handle);
+            native_handle_delete(handle);
+        }
+    }
 };
 
 IMPLEMENT_META_INTERFACE(CameraRecordingProxy, "android.hardware.ICameraRecordingProxy");
@@ -121,6 +140,31 @@
             releaseRecordingFrameHandle(data.readNativeHandle());
             return NO_ERROR;
         } break;
+        case RELEASE_RECORDING_FRAME_HANDLE_BATCH: {
+            ALOGV("RELEASE_RECORDING_FRAME_HANDLE_BATCH");
+            CHECK_INTERFACE(ICameraRecordingProxy, data, reply);
+            uint32_t n = 0;
+            status_t res = data.readUint32(&n);
+            if (res != OK) {
+                ALOGE("%s: Failed to read batch size: %s (%d)", __FUNCTION__, strerror(-res), res);
+                return BAD_VALUE;
+            }
+            std::vector<native_handle_t*> handles;
+            handles.reserve(n);
+            for (uint32_t i = 0; i < n; i++) {
+                native_handle_t* handle = data.readNativeHandle();
+                if (handle == nullptr) {
+                    ALOGE("%s: Received a null native handle at handles[%d]",
+                            __FUNCTION__, i);
+                    return BAD_VALUE;
+                }
+                handles.push_back(handle);
+            }
+
+            // releaseRecordingFrameHandleBatch will be responsble to close the native handle.
+            releaseRecordingFrameHandleBatch(handles);
+            return NO_ERROR;
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/camera/ICameraRecordingProxyListener.cpp b/camera/ICameraRecordingProxyListener.cpp
index fa4dfd8..c954241 100644
--- a/camera/ICameraRecordingProxyListener.cpp
+++ b/camera/ICameraRecordingProxyListener.cpp
@@ -28,12 +28,13 @@
 enum {
     DATA_CALLBACK_TIMESTAMP = IBinder::FIRST_CALL_TRANSACTION,
     RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP,
+    RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH
 };
 
 class BpCameraRecordingProxyListener: public BpInterface<ICameraRecordingProxyListener>
 {
 public:
-    BpCameraRecordingProxyListener(const sp<IBinder>& impl)
+    explicit BpCameraRecordingProxyListener(const sp<IBinder>& impl)
         : BpInterface<ICameraRecordingProxyListener>(impl)
     {
     }
@@ -62,6 +63,36 @@
         native_handle_close(handle);
         native_handle_delete(handle);
     }
+
+    void recordingFrameHandleCallbackTimestampBatch(
+            const std::vector<nsecs_t>& timestamps,
+            const std::vector<native_handle_t*>& handles) {
+        ALOGV("recordingFrameHandleCallbackTimestampBatch");
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraRecordingProxyListener::getInterfaceDescriptor());
+
+        uint32_t n = timestamps.size();
+        if (n != handles.size()) {
+            ALOGE("%s: size of timestamps(%zu) and handles(%zu) mismatch!",
+                    __FUNCTION__, timestamps.size(), handles.size());
+            return;
+        }
+        data.writeUint32(n);
+        for (auto ts : timestamps) {
+            data.writeInt64(ts);
+        }
+        for (auto& handle : handles) {
+            data.writeNativeHandle(handle);
+        }
+        remote()->transact(RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH, data, &reply,
+                IBinder::FLAG_ONEWAY);
+
+        // The native handle is dupped in ICameraClient so we need to free it here.
+        for (auto& handle : handles) {
+            native_handle_close(handle);
+            native_handle_delete(handle);
+        }
+    }
 };
 
 IMPLEMENT_META_INTERFACE(CameraRecordingProxyListener, "android.hardware.ICameraRecordingProxyListener");
@@ -101,6 +132,41 @@
             recordingFrameHandleCallbackTimestamp(timestamp, handle);
             return NO_ERROR;
         } break;
+        case RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH: {
+            ALOGV("RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH");
+            CHECK_INTERFACE(ICameraRecordingProxyListener, data, reply);
+            uint32_t n = 0;
+            status_t res = data.readUint32(&n);
+            if (res != OK) {
+                ALOGE("%s: Failed to read batch size: %s (%d)", __FUNCTION__, strerror(-res), res);
+                return BAD_VALUE;
+            }
+            std::vector<nsecs_t> timestamps;
+            std::vector<native_handle_t*> handles;
+            timestamps.reserve(n);
+            handles.reserve(n);
+            for (uint32_t i = 0; i < n; i++) {
+                res = data.readInt64(&timestamps[i]);
+                if (res != OK) {
+                    ALOGE("%s: Failed to read timestamp[%d]: %s (%d)",
+                            __FUNCTION__, i, strerror(-res), res);
+                    return BAD_VALUE;
+                }
+            }
+            for (uint32_t i = 0; i < n; i++) {
+                native_handle_t* handle = data.readNativeHandle();
+                if (handle == nullptr) {
+                    ALOGE("%s: Received a null native handle at handles[%d]",
+                            __FUNCTION__, i);
+                    return BAD_VALUE;
+                }
+                handles.push_back(handle);
+            }
+            // The native handle will be freed in
+            // BpCameraRecordingProxy::releaseRecordingFrameHandleBatch.
+            recordingFrameHandleCallbackTimestampBatch(timestamps, handles);
+            return NO_ERROR;
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/camera/ICameraServiceProxy.cpp b/camera/ICameraServiceProxy.cpp
index 694e9c3..a9d0836 100644
--- a/camera/ICameraServiceProxy.cpp
+++ b/camera/ICameraServiceProxy.cpp
@@ -26,7 +26,8 @@
 
 class BpCameraServiceProxy: public BpInterface<ICameraServiceProxy> {
 public:
-    BpCameraServiceProxy(const sp<IBinder>& impl) : BpInterface<ICameraServiceProxy>(impl) {}
+    explicit BpCameraServiceProxy(const sp<IBinder>& impl)
+        : BpInterface<ICameraServiceProxy>(impl) {}
 
     virtual void pingForUserUpdate() {
         Parcel data;
diff --git a/camera/VendorTagDescriptor.cpp b/camera/VendorTagDescriptor.cpp
index 02ece14..4c28789 100644
--- a/camera/VendorTagDescriptor.cpp
+++ b/camera/VendorTagDescriptor.cpp
@@ -29,6 +29,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <inttypes.h>
 
 namespace android {
 
@@ -40,11 +41,22 @@
 static const char* vendor_tag_descriptor_get_tag_name(const vendor_tag_ops_t* v, uint32_t tag);
 static int vendor_tag_descriptor_get_tag_type(const vendor_tag_ops_t* v, uint32_t tag);
 
+static int vendor_tag_descriptor_cache_get_tag_count(metadata_vendor_id_t id);
+static void vendor_tag_descriptor_cache_get_all_tags(uint32_t* tagArray,
+        metadata_vendor_id_t id);
+static const char* vendor_tag_descriptor_cache_get_section_name(uint32_t tag,
+        metadata_vendor_id_t id);
+static const char* vendor_tag_descriptor_cache_get_tag_name(uint32_t tag,
+        metadata_vendor_id_t id);
+static int vendor_tag_descriptor_cache_get_tag_type(uint32_t tag,
+        metadata_vendor_id_t id);
+
 } /* extern "C" */
 
 
 static Mutex sLock;
 static sp<VendorTagDescriptor> sGlobalVendorTagDescriptor;
+static sp<VendorTagDescriptorCache> sGlobalVendorTagDescriptorCache;
 
 namespace hardware {
 namespace camera2 {
@@ -96,7 +108,7 @@
     mVendorOps = src.mVendorOps;
 }
 
-status_t VendorTagDescriptor::readFromParcel(const Parcel* parcel) {
+status_t VendorTagDescriptor::readFromParcel(const android::Parcel* parcel) {
     status_t res = OK;
     if (parcel == NULL) {
         ALOGE("%s: parcel argument was NULL.", __FUNCTION__);
@@ -192,7 +204,7 @@
     // Set up reverse mapping
     for (size_t i = 0; i < static_cast<size_t>(tagCount); ++i) {
         uint32_t tag = allTags[i];
-        String8 sectionString = mSections[mTagToSectionMap.valueFor(tag)];
+        const String8& sectionString = mSections[mTagToSectionMap.valueFor(tag)];
 
         ssize_t reverseIndex = -1;
         if ((reverseIndex = mReverseMapping.indexOfKey(sectionString)) < 0) {
@@ -244,7 +256,7 @@
     return mTagToTypeMap.valueFor(tag);
 }
 
-status_t VendorTagDescriptor::writeToParcel(Parcel* parcel) const {
+status_t VendorTagDescriptor::writeToParcel(android::Parcel* parcel) const {
     status_t res = OK;
     if (parcel == NULL) {
         ALOGE("%s: parcel argument was NULL.", __FUNCTION__);
@@ -284,7 +296,7 @@
     return &mSections;
 }
 
-status_t VendorTagDescriptor::lookupTag(String8 name, String8 section, /*out*/uint32_t* tag) const {
+status_t VendorTagDescriptor::lookupTag(const String8& name, const String8& section, /*out*/uint32_t* tag) const {
     ssize_t index = mReverseMapping.indexOfKey(section);
     if (index < 0) {
         ALOGE("%s: Section '%s' does not exist.", __FUNCTION__, section.string());
@@ -333,11 +345,166 @@
 
 }
 
+status_t VendorTagDescriptorCache::writeToParcel(Parcel* parcel) const {
+    status_t res = OK;
+    if (parcel == NULL) {
+        ALOGE("%s: parcel argument was NULL.", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    if ((res = parcel->writeInt32(mVendorMap.size())) != OK) {
+        return res;
+    }
+
+    for (const auto &iter : mVendorMap) {
+        if ((res = parcel->writeUint64(iter.first)) != OK) break;
+        if ((res = parcel->writeParcelable(*iter.second)) != OK) break;
+    }
+
+    return res;
+}
+
+
+status_t VendorTagDescriptorCache::readFromParcel(const Parcel* parcel) {
+    status_t res = OK;
+    if (parcel == NULL) {
+        ALOGE("%s: parcel argument was NULL.", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    int32_t vendorCount = 0;
+    if ((res = parcel->readInt32(&vendorCount)) != OK) {
+        ALOGE("%s: could not read vendor count from parcel", __FUNCTION__);
+        return res;
+    }
+
+    if (vendorCount < 0 || vendorCount > INT32_MAX) {
+        ALOGE("%s: vendor count %d from is invalid.", __FUNCTION__, vendorCount);
+        return BAD_VALUE;
+    }
+
+    metadata_vendor_id_t id;
+    for (int32_t i = 0; i < vendorCount; i++) {
+        if ((res = parcel->readUint64(&id)) != OK) {
+            ALOGE("%s: could not read vendor id from parcel for index %d",
+                  __FUNCTION__, i);
+            break;
+        }
+        sp<android::VendorTagDescriptor> desc = new android::VendorTagDescriptor();
+        if ((res = parcel->readParcelable(desc.get())) != OK) {
+            ALOGE("%s: could not read vendor tag descriptor from parcel for index %d rc = %d",
+                  __FUNCTION__, i, res);
+            break;
+        }
+
+        if ((res = addVendorDescriptor(id, desc)) != OK) {
+            ALOGE("%s: failed to add vendor tag descriptor for index: %d ",
+                  __FUNCTION__, i);
+            break;
+        }
+    }
+
+    return res;
+}
+
+int VendorTagDescriptorCache::getTagCount(metadata_vendor_id_t id) const {
+    int ret = 0;
+    auto desc = mVendorMap.find(id);
+    if (desc != mVendorMap.end()) {
+        ret = desc->second->getTagCount();
+    } else {
+        ALOGE("%s: Vendor descriptor id is missing!", __func__);
+    }
+
+    return ret;
+}
+
+void VendorTagDescriptorCache::getTagArray(uint32_t* tagArray,
+        metadata_vendor_id_t id) const {
+    auto desc = mVendorMap.find(id);
+    if (desc != mVendorMap.end()) {
+        desc->second->getTagArray(tagArray);
+    } else {
+        ALOGE("%s: Vendor descriptor id is missing!", __func__);
+    }
+}
+
+const char* VendorTagDescriptorCache::getSectionName(uint32_t tag,
+        metadata_vendor_id_t id) const {
+    const char *ret = nullptr;
+    auto desc = mVendorMap.find(id);
+    if (desc != mVendorMap.end()) {
+        ret = desc->second->getSectionName(tag);
+    } else {
+        ALOGE("%s: Vendor descriptor id is missing!", __func__);
+    }
+
+    return ret;
+}
+
+const char* VendorTagDescriptorCache::getTagName(uint32_t tag,
+        metadata_vendor_id_t id) const {
+    const char *ret = nullptr;
+    auto desc = mVendorMap.find(id);
+    if (desc != mVendorMap.end()) {
+        ret = desc->second->getTagName(tag);
+    } else {
+        ALOGE("%s: Vendor descriptor id is missing!", __func__);
+    }
+
+    return ret;
+}
+
+int VendorTagDescriptorCache::getTagType(uint32_t tag,
+        metadata_vendor_id_t id) const {
+    int ret = 0;
+    auto desc = mVendorMap.find(id);
+    if (desc != mVendorMap.end()) {
+        ret = desc->second->getTagType(tag);
+    } else {
+        ALOGE("%s: Vendor descriptor id is missing!", __func__);
+    }
+
+    return ret;
+}
+
+void VendorTagDescriptorCache::dump(int fd, int verbosity,
+        int indentation) const {
+    for (const auto &desc : mVendorMap) {
+        dprintf(fd, "%*sDumping vendor tag descriptors for vendor with"
+                " id %" PRIu64 " \n", indentation, "", desc.first);
+        desc.second->dump(fd, verbosity, indentation);
+    }
+}
+
+int32_t VendorTagDescriptorCache::addVendorDescriptor(metadata_vendor_id_t id,
+        sp<android::VendorTagDescriptor> desc) {
+    auto entry = mVendorMap.find(id);
+    if (entry != mVendorMap.end()) {
+        ALOGE("%s: Vendor descriptor with same id already present!", __func__);
+        return BAD_VALUE;
+    }
+
+    mVendorMap.emplace(id, desc);
+    return NO_ERROR;
+}
+
+int32_t VendorTagDescriptorCache::getVendorTagDescriptor(
+        metadata_vendor_id_t id, sp<android::VendorTagDescriptor> *desc /*out*/) {
+    auto entry = mVendorMap.find(id);
+    if (entry == mVendorMap.end()) {
+        return NAME_NOT_FOUND;
+    }
+
+    *desc = entry->second;
+
+    return NO_ERROR;
+}
+
 } // namespace params
 } // namespace camera2
 } // namespace hardware
 
-
 status_t VendorTagDescriptor::createDescriptorFromOps(const vendor_tag_ops_t* vOps,
             /*out*/
             sp<VendorTagDescriptor>& descriptor) {
@@ -451,6 +618,39 @@
     return sGlobalVendorTagDescriptor;
 }
 
+status_t VendorTagDescriptorCache::setAsGlobalVendorTagCache(
+        const sp<VendorTagDescriptorCache>& cache) {
+    status_t res = OK;
+    Mutex::Autolock al(sLock);
+    sGlobalVendorTagDescriptorCache = cache;
+
+    struct vendor_tag_cache_ops* opsPtr = NULL;
+    if (cache != NULL) {
+        opsPtr = &(cache->mVendorCacheOps);
+        opsPtr->get_tag_count = vendor_tag_descriptor_cache_get_tag_count;
+        opsPtr->get_all_tags = vendor_tag_descriptor_cache_get_all_tags;
+        opsPtr->get_section_name = vendor_tag_descriptor_cache_get_section_name;
+        opsPtr->get_tag_name = vendor_tag_descriptor_cache_get_tag_name;
+        opsPtr->get_tag_type = vendor_tag_descriptor_cache_get_tag_type;
+    }
+    if((res = set_camera_metadata_vendor_cache_ops(opsPtr)) != OK) {
+        ALOGE("%s: Could not set vendor tag cache, received error %s (%d)."
+                , __FUNCTION__, strerror(-res), res);
+    }
+    return res;
+}
+
+void VendorTagDescriptorCache::clearGlobalVendorTagCache() {
+    Mutex::Autolock al(sLock);
+    set_camera_metadata_vendor_cache_ops(NULL);
+    sGlobalVendorTagDescriptorCache.clear();
+}
+
+sp<VendorTagDescriptorCache> VendorTagDescriptorCache::getGlobalVendorTagCache() {
+    Mutex::Autolock al(sLock);
+    return sGlobalVendorTagDescriptorCache;
+}
+
 extern "C" {
 
 int vendor_tag_descriptor_get_tag_count(const vendor_tag_ops_t* /*v*/) {
@@ -498,5 +698,53 @@
     return sGlobalVendorTagDescriptor->getTagType(tag);
 }
 
+int vendor_tag_descriptor_cache_get_tag_count(metadata_vendor_id_t id) {
+    Mutex::Autolock al(sLock);
+    if (sGlobalVendorTagDescriptorCache == NULL) {
+        ALOGE("%s: Vendor tag descriptor cache not initialized.", __FUNCTION__);
+        return VENDOR_TAG_COUNT_ERR;
+    }
+    return sGlobalVendorTagDescriptorCache->getTagCount(id);
+}
+
+void vendor_tag_descriptor_cache_get_all_tags(uint32_t* tagArray,
+        metadata_vendor_id_t id) {
+    Mutex::Autolock al(sLock);
+    if (sGlobalVendorTagDescriptorCache == NULL) {
+        ALOGE("%s: Vendor tag descriptor cache not initialized.", __FUNCTION__);
+    }
+    sGlobalVendorTagDescriptorCache->getTagArray(tagArray, id);
+}
+
+const char* vendor_tag_descriptor_cache_get_section_name(uint32_t tag,
+        metadata_vendor_id_t id) {
+    Mutex::Autolock al(sLock);
+    if (sGlobalVendorTagDescriptorCache == NULL) {
+        ALOGE("%s: Vendor tag descriptor cache not initialized.", __FUNCTION__);
+        return VENDOR_SECTION_NAME_ERR;
+    }
+    return sGlobalVendorTagDescriptorCache->getSectionName(tag, id);
+}
+
+const char* vendor_tag_descriptor_cache_get_tag_name(uint32_t tag,
+        metadata_vendor_id_t id) {
+    Mutex::Autolock al(sLock);
+    if (sGlobalVendorTagDescriptorCache == NULL) {
+        ALOGE("%s: Vendor tag descriptor cache not initialized.", __FUNCTION__);
+        return VENDOR_TAG_NAME_ERR;
+    }
+    return sGlobalVendorTagDescriptorCache->getTagName(tag, id);
+}
+
+int vendor_tag_descriptor_cache_get_tag_type(uint32_t tag,
+        metadata_vendor_id_t id) {
+    Mutex::Autolock al(sLock);
+    if (sGlobalVendorTagDescriptorCache == NULL) {
+        ALOGE("%s: Vendor tag descriptor cache not initialized.", __FUNCTION__);
+        return VENDOR_TAG_NAME_ERR;
+    }
+    return sGlobalVendorTagDescriptorCache->getTagType(tag, id);
+}
+
 } /* extern "C" */
 } /* namespace android */
diff --git a/camera/aidl/android/hardware/CameraStatus.aidl b/camera/aidl/android/hardware/CameraStatus.aidl
new file mode 100644
index 0000000..2089b8b
--- /dev/null
+++ b/camera/aidl/android/hardware/CameraStatus.aidl
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware;
+
+/** @hide */
+parcelable CameraStatus cpp_header "camera/CameraBase.h";
diff --git a/camera/aidl/android/hardware/ICameraService.aidl b/camera/aidl/android/hardware/ICameraService.aidl
index e94fd0c..9c0f28b 100644
--- a/camera/aidl/android/hardware/ICameraService.aidl
+++ b/camera/aidl/android/hardware/ICameraService.aidl
@@ -21,9 +21,11 @@
 import android.hardware.camera2.ICameraDeviceUser;
 import android.hardware.camera2.ICameraDeviceCallbacks;
 import android.hardware.camera2.params.VendorTagDescriptor;
+import android.hardware.camera2.params.VendorTagDescriptorCache;
 import android.hardware.camera2.impl.CameraMetadataNative;
 import android.hardware.ICameraServiceListener;
 import android.hardware.CameraInfo;
+import android.hardware.CameraStatus;
 
 /**
  * Binder interface for the native camera service running in mediaserver.
@@ -83,7 +85,7 @@
      * Only supported for device HAL versions >= 3.2
      */
     ICameraDeviceUser connectDevice(ICameraDeviceCallbacks callbacks,
-            int cameraId,
+            String cameraId,
             String opPackageName,
             int clientUid);
 
@@ -102,16 +104,24 @@
             int clientUid);
 
     /**
-     * Add/remove listeners for changes to camera device and flashlight state
+     * Add listener for changes to camera device and flashlight state.
+     *
+     * Also returns the set of currently-known camera IDs and state of each device.
+     * Adding a listener will trigger the torch status listener to fire for all
+     * devices that have a flash unit
      */
-    void addListener(ICameraServiceListener listener);
+    CameraStatus[] addListener(ICameraServiceListener listener);
+
+    /**
+     * Remove listener for changes to camera device and flashlight state.
+     */
     void removeListener(ICameraServiceListener listener);
 
     /**
      * Read the static camera metadata for a camera device.
      * Only supported for device HAL versions >= 3.2
      */
-    CameraMetadataNative getCameraCharacteristics(int cameraId);
+    CameraMetadataNative getCameraCharacteristics(String cameraId);
 
     /**
      * Read in the vendor tag descriptors from the camera module HAL.
@@ -121,6 +131,14 @@
     VendorTagDescriptor getCameraVendorTagDescriptor();
 
     /**
+     * Retrieve the vendor tag descriptor cache which can have multiple vendor
+     * providers.
+     * Intended to be used by the native code of CameraMetadataNative to correctly
+     * interpret camera metadata with vendor tags.
+     */
+    VendorTagDescriptorCache getCameraVendorTagCache();
+
+    /**
      * Read the legacy camera1 parameters into a String
      */
     String getLegacyParameters(int cameraId);
@@ -132,9 +150,9 @@
     const int API_VERSION_2 = 2;
 
     // Determines if a particular API version is supported directly
-    boolean supportsCameraApi(int cameraId, int apiVersion);
+    boolean supportsCameraApi(String cameraId, int apiVersion);
 
-    void setTorchMode(String CameraId, boolean enabled, IBinder clientBinder);
+    void setTorchMode(String cameraId, boolean enabled, IBinder clientBinder);
 
     /**
      * Notify the camera service of a system event.  Should only be called from system_server.
diff --git a/camera/aidl/android/hardware/ICameraServiceListener.aidl b/camera/aidl/android/hardware/ICameraServiceListener.aidl
index 4e2a8c7..f871ce4 100644
--- a/camera/aidl/android/hardware/ICameraServiceListener.aidl
+++ b/camera/aidl/android/hardware/ICameraServiceListener.aidl
@@ -40,7 +40,7 @@
      */
     // Device physically unplugged
     const int STATUS_NOT_PRESENT      = 0;
-    // Device physically has been plugged in and the camera can be used exlusively
+    // Device physically has been plugged in and the camera can be used exclusively
     const int STATUS_PRESENT          = 1;
     // Device physically has been plugged in but it will not be connect-able until enumeration is
     // complete
@@ -51,7 +51,7 @@
     // Use to initialize variables only
     const int STATUS_UNKNOWN          = -1;
 
-    oneway void onStatusChanged(int status, int cameraId);
+    oneway void onStatusChanged(int status, String cameraId);
 
     /**
      * The torch mode status of a camera.
diff --git a/camera/aidl/android/hardware/camera2/ICameraDeviceCallbacks.aidl b/camera/aidl/android/hardware/camera2/ICameraDeviceCallbacks.aidl
index 755ec8e..8308095 100644
--- a/camera/aidl/android/hardware/camera2/ICameraDeviceCallbacks.aidl
+++ b/camera/aidl/android/hardware/camera2/ICameraDeviceCallbacks.aidl
@@ -44,4 +44,5 @@
      * @param lastFrameNumber Frame number of the last frame of the streaming request.
      */
     oneway void onRepeatingRequestError(in long lastFrameNumber);
+    oneway void onRequestQueueEmpty();
 }
diff --git a/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl b/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
index 96ecfa0..0771fc8 100644
--- a/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
+++ b/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
@@ -54,6 +54,22 @@
     void beginConfigure();
 
     /**
+     * The standard operating mode for a camera device; all API guarantees are in force
+     */
+    const int NORMAL_MODE = 0;
+
+    /**
+     * High-speed recording mode; only two outputs targeting preview and video recording may be
+     * used, and requests must be batched.
+     */
+    const int CONSTRAINED_HIGH_SPEED_MODE = 1;
+
+    /**
+     * Start of custom vendor modes
+     */
+    const int VENDOR_MODE_START = 0x8000;
+
+    /**
      * End the device configuration.
      *
      * <p>
@@ -61,8 +77,10 @@
      * a call to beginConfigure and subsequent createStream/deleteStream calls).  This
      * must be called before any requests can be submitted.
      * <p>
+     * @param operatingMode The kind of session to create; either NORMAL_MODE or
+     *     CONSTRAINED_HIGH_SPEED_MODE. Must be a non-negative value.
      */
-    void endConfigure(boolean isConstrainedHighSpeed);
+    void endConfigure(int operatingMode);
 
     void deleteStream(int streamId);
 
@@ -122,5 +140,5 @@
 
     void prepare2(int maxCount, int streamId);
 
-    void setDeferredConfiguration(int streamId, in OutputConfiguration outputConfiguration);
+    void finalizeOutputConfigurations(int streamId, in OutputConfiguration outputConfiguration);
 }
diff --git a/camera/aidl/android/hardware/camera2/params/VendorTagDescriptorCache.aidl b/camera/aidl/android/hardware/camera2/params/VendorTagDescriptorCache.aidl
new file mode 100644
index 0000000..d212207
--- /dev/null
+++ b/camera/aidl/android/hardware/camera2/params/VendorTagDescriptorCache.aidl
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.camera2.params;
+
+/** @hide */
+parcelable VendorTagDescriptorCache cpp_header "camera/VendorTagDescriptor.h";
diff --git a/camera/camera2/CaptureRequest.cpp b/camera/camera2/CaptureRequest.cpp
index 0d689a6..0597950 100644
--- a/camera/camera2/CaptureRequest.cpp
+++ b/camera/camera2/CaptureRequest.cpp
@@ -23,12 +23,20 @@
 
 #include <binder/Parcel.h>
 #include <gui/Surface.h>
+#include <gui/view/Surface.h>
 
 namespace android {
 namespace hardware {
 namespace camera2 {
 
-status_t CaptureRequest::readFromParcel(const Parcel* parcel) {
+// These must be in the .cpp (to avoid inlining)
+CaptureRequest::CaptureRequest() = default;
+CaptureRequest::~CaptureRequest() = default;
+CaptureRequest::CaptureRequest(const CaptureRequest& rhs) = default;
+CaptureRequest::CaptureRequest(CaptureRequest&& rhs) noexcept = default;
+
+
+status_t CaptureRequest::readFromParcel(const android::Parcel* parcel) {
     if (parcel == NULL) {
         ALOGE("%s: Null parcel", __FUNCTION__);
         return BAD_VALUE;
@@ -90,7 +98,7 @@
     return OK;
 }
 
-status_t CaptureRequest::writeToParcel(Parcel* parcel) const {
+status_t CaptureRequest::writeToParcel(android::Parcel* parcel) const {
     if (parcel == NULL) {
         ALOGE("%s: Null parcel", __FUNCTION__);
         return BAD_VALUE;
diff --git a/camera/camera2/OutputConfiguration.cpp b/camera/camera2/OutputConfiguration.cpp
index 38e1c01..468a1eb 100644
--- a/camera/camera2/OutputConfiguration.cpp
+++ b/camera/camera2/OutputConfiguration.cpp
@@ -21,8 +21,9 @@
 #include <utils/Log.h>
 
 #include <camera/camera2/OutputConfiguration.h>
-#include <gui/Surface.h>
 #include <binder/Parcel.h>
+#include <gui/view/Surface.h>
+#include <utils/String8.h>
 
 namespace android {
 
@@ -30,8 +31,9 @@
 const int OutputConfiguration::INVALID_ROTATION = -1;
 const int OutputConfiguration::INVALID_SET_ID = -1;
 
-sp<IGraphicBufferProducer> OutputConfiguration::getGraphicBufferProducer() const {
-    return mGbp;
+const std::vector<sp<IGraphicBufferProducer>>&
+        OutputConfiguration::getGraphicBufferProducers() const {
+    return mGbps;
 }
 
 int OutputConfiguration::getRotation() const {
@@ -54,21 +56,31 @@
     return mHeight;
 }
 
+bool OutputConfiguration::isDeferred() const {
+    return mIsDeferred;
+}
+
+bool OutputConfiguration::isShared() const {
+    return mIsShared;
+}
+
 OutputConfiguration::OutputConfiguration() :
         mRotation(INVALID_ROTATION),
         mSurfaceSetID(INVALID_SET_ID),
         mSurfaceType(SURFACE_TYPE_UNKNOWN),
         mWidth(0),
-        mHeight(0) {
+        mHeight(0),
+        mIsDeferred(false),
+        mIsShared(false) {
 }
 
-OutputConfiguration::OutputConfiguration(const Parcel& parcel) :
+OutputConfiguration::OutputConfiguration(const android::Parcel& parcel) :
         mRotation(INVALID_ROTATION),
         mSurfaceSetID(INVALID_SET_ID) {
     readFromParcel(&parcel);
 }
 
-status_t OutputConfiguration::readFromParcel(const Parcel* parcel) {
+status_t OutputConfiguration::readFromParcel(const android::Parcel* parcel) {
     status_t err = OK;
     int rotation = 0;
 
@@ -103,42 +115,60 @@
         return err;
     }
 
-    view::Surface surfaceShim;
-    if ((err = surfaceShim.readFromParcel(parcel)) != OK) {
-        // Read surface failure for deferred surface configuration is expected.
-        if (surfaceType == SURFACE_TYPE_SURFACE_VIEW ||
-                surfaceType == SURFACE_TYPE_SURFACE_TEXTURE) {
-            ALOGV("%s: Get null surface from a deferred surface configuration (%dx%d)",
-                    __FUNCTION__, width, height);
-            err = OK;
-        } else {
-            ALOGE("%s: Failed to read surface from parcel", __FUNCTION__);
-            return err;
-        }
+    int isDeferred = 0;
+    if ((err = parcel->readInt32(&isDeferred)) != OK) {
+        ALOGE("%s: Failed to read surface isDeferred flag from parcel", __FUNCTION__);
+        return err;
     }
 
-    mGbp = surfaceShim.graphicBufferProducer;
+    int isShared = 0;
+    if ((err = parcel->readInt32(&isShared)) != OK) {
+        ALOGE("%s: Failed to read surface isShared flag from parcel", __FUNCTION__);
+        return err;
+    }
+
+    if (isDeferred && surfaceType != SURFACE_TYPE_SURFACE_VIEW &&
+            surfaceType != SURFACE_TYPE_SURFACE_TEXTURE) {
+        ALOGE("%s: Invalid surface type for deferred configuration", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    std::vector<view::Surface> surfaceShims;
+    if ((err = parcel->readParcelableVector(&surfaceShims)) != OK) {
+        ALOGE("%s: Failed to read surface(s) from parcel", __FUNCTION__);
+        return err;
+    }
+
     mRotation = rotation;
     mSurfaceSetID = setID;
     mSurfaceType = surfaceType;
     mWidth = width;
     mHeight = height;
+    mIsDeferred = isDeferred != 0;
+    mIsShared = isShared != 0;
+    for (auto& surface : surfaceShims) {
+        ALOGV("%s: OutputConfiguration: %p, name %s", __FUNCTION__,
+                surface.graphicBufferProducer.get(),
+                String8(surface.name).string());
+        mGbps.push_back(surface.graphicBufferProducer);
+    }
 
-    ALOGV("%s: OutputConfiguration: bp = %p, name = %s, rotation = %d, setId = %d,"
-            "surfaceType = %d", __FUNCTION__, mGbp.get(), String8(surfaceShim.name).string(),
-            mRotation, mSurfaceSetID, mSurfaceType);
+    ALOGV("%s: OutputConfiguration: rotation = %d, setId = %d, surfaceType = %d",
+            __FUNCTION__, mRotation, mSurfaceSetID, mSurfaceType);
 
     return err;
 }
 
 OutputConfiguration::OutputConfiguration(sp<IGraphicBufferProducer>& gbp, int rotation,
         int surfaceSetID) {
-    mGbp = gbp;
+    mGbps.push_back(gbp);
     mRotation = rotation;
     mSurfaceSetID = surfaceSetID;
+    mIsDeferred = false;
+    mIsShared = false;
 }
 
-status_t OutputConfiguration::writeToParcel(Parcel* parcel) const {
+status_t OutputConfiguration::writeToParcel(android::Parcel* parcel) const {
 
     if (parcel == nullptr) return BAD_VALUE;
     status_t err = OK;
@@ -158,14 +188,56 @@
     err = parcel->writeInt32(mHeight);
     if (err != OK) return err;
 
-    view::Surface surfaceShim;
-    surfaceShim.name = String16("unknown_name"); // name of surface
-    surfaceShim.graphicBufferProducer = mGbp;
+    err = parcel->writeInt32(mIsDeferred ? 1 : 0);
+    if (err != OK) return err;
 
-    err = surfaceShim.writeToParcel(parcel);
+    err = parcel->writeInt32(mIsShared ? 1 : 0);
+    if (err != OK) return err;
+
+    std::vector<view::Surface> surfaceShims;
+    for (auto& gbp : mGbps) {
+        view::Surface surfaceShim;
+        surfaceShim.name = String16("unknown_name"); // name of surface
+        surfaceShim.graphicBufferProducer = gbp;
+        surfaceShims.push_back(surfaceShim);
+    }
+    err = parcel->writeParcelableVector(surfaceShims);
     if (err != OK) return err;
 
     return OK;
 }
 
+bool OutputConfiguration::gbpsEqual(const OutputConfiguration& other) const {
+    const std::vector<sp<IGraphicBufferProducer> >& otherGbps =
+            other.getGraphicBufferProducers();
+
+    if (mGbps.size() != otherGbps.size()) {
+        return false;
+    }
+
+    for (size_t i = 0; i < mGbps.size(); i++) {
+        if (mGbps[i] != otherGbps[i]) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+bool OutputConfiguration::gbpsLessThan(const OutputConfiguration& other) const {
+    const std::vector<sp<IGraphicBufferProducer> >& otherGbps =
+            other.getGraphicBufferProducers();
+
+    if (mGbps.size() !=  otherGbps.size()) {
+        return mGbps.size() < otherGbps.size();
+    }
+
+    for (size_t i = 0; i < mGbps.size(); i++) {
+        if (mGbps[i] != otherGbps[i]) {
+            return mGbps[i] < otherGbps[i];
+        }
+    }
+
+    return false;
+}
 }; // namespace android
diff --git a/camera/camera2/SubmitInfo.cpp b/camera/camera2/SubmitInfo.cpp
index d739c79..6ebd810 100644
--- a/camera/camera2/SubmitInfo.cpp
+++ b/camera/camera2/SubmitInfo.cpp
@@ -22,7 +22,7 @@
 namespace camera2 {
 namespace utils {
 
-status_t SubmitInfo::writeToParcel(Parcel *parcel) const {
+status_t SubmitInfo::writeToParcel(android::Parcel *parcel) const {
     status_t res;
     if (parcel == nullptr) return BAD_VALUE;
 
@@ -33,7 +33,7 @@
     return res;
 }
 
-status_t SubmitInfo::readFromParcel(const Parcel *parcel) {
+status_t SubmitInfo::readFromParcel(const android::Parcel *parcel) {
     status_t res;
     if (parcel == nullptr) return BAD_VALUE;
 
diff --git a/camera/cameraserver/Android.mk b/camera/cameraserver/Android.mk
index 7e36c5e..d32e252 100644
--- a/camera/cameraserver/Android.mk
+++ b/camera/cameraserver/Android.mk
@@ -21,10 +21,17 @@
 
 LOCAL_SHARED_LIBRARIES := \
 	libcameraservice \
-	libcutils \
+	liblog \
 	libutils \
+	libui \
+	libgui \
 	libbinder \
-	libcamera_client
+	libhidltransport \
+	android.hardware.camera.common@1.0 \
+	android.hardware.camera.provider@2.4 \
+	android.hardware.camera.device@1.0 \
+	android.hardware.camera.device@3.2 \
+	android.hidl.manager@1.0
 
 LOCAL_MODULE:= cameraserver
 LOCAL_32_BIT_ONLY := true
diff --git a/camera/cameraserver/main_cameraserver.cpp b/camera/cameraserver/main_cameraserver.cpp
index f4be468..3972436 100644
--- a/camera/cameraserver/main_cameraserver.cpp
+++ b/camera/cameraserver/main_cameraserver.cpp
@@ -17,8 +17,8 @@
 #define LOG_TAG "cameraserver"
 //#define LOG_NDEBUG 0
 
-// from LOCAL_C_INCLUDES
 #include "CameraService.h"
+#include <hidl/HidlTransportSupport.h>
 
 using namespace android;
 
@@ -26,6 +26,9 @@
 {
     signal(SIGPIPE, SIG_IGN);
 
+    // Set 3 threads for HIDL calls
+    hardware::configureRpcThreadpool(3, /*willjoin*/ false);
+
     sp<ProcessState> proc(ProcessState::self());
     sp<IServiceManager> sm = defaultServiceManager();
     ALOGI("ServiceManager: %p", sm.get());
diff --git a/camera/include/camera/Camera.h b/camera/include/camera/Camera.h
new file mode 100644
index 0000000..430aa1c
--- /dev/null
+++ b/camera/include/camera/Camera.h
@@ -0,0 +1,210 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_H
+#define ANDROID_HARDWARE_CAMERA_H
+
+#include <utils/Timers.h>
+
+#include <android/hardware/ICameraService.h>
+
+#include <gui/IGraphicBufferProducer.h>
+#include <system/camera.h>
+#include <camera/ICameraRecordingProxy.h>
+#include <camera/ICameraRecordingProxyListener.h>
+#include <camera/android/hardware/ICamera.h>
+#include <camera/android/hardware/ICameraClient.h>
+#include <camera/CameraBase.h>
+
+namespace android {
+
+class Surface;
+class String8;
+class String16;
+
+// ref-counted object for callbacks
+class CameraListener: virtual public RefBase
+{
+public:
+    virtual void notify(int32_t msgType, int32_t ext1, int32_t ext2) = 0;
+    virtual void postData(int32_t msgType, const sp<IMemory>& dataPtr,
+                          camera_frame_metadata_t *metadata) = 0;
+    virtual void postDataTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr) = 0;
+    virtual void postRecordingFrameHandleTimestamp(nsecs_t timestamp, native_handle_t* handle) = 0;
+    virtual void postRecordingFrameHandleTimestampBatch(
+            const std::vector<nsecs_t>& timestamps,
+            const std::vector<native_handle_t*>& handles) = 0;
+};
+
+class Camera;
+
+template <>
+struct CameraTraits<Camera>
+{
+    typedef CameraListener                     TCamListener;
+    typedef ::android::hardware::ICamera       TCamUser;
+    typedef ::android::hardware::ICameraClient TCamCallbacks;
+    typedef ::android::binder::Status(::android::hardware::ICameraService::*TCamConnectService)
+        (const sp<::android::hardware::ICameraClient>&,
+        int, const String16&, int, int,
+        /*out*/
+        sp<::android::hardware::ICamera>*);
+    static TCamConnectService     fnConnectService;
+};
+
+
+class Camera :
+    public CameraBase<Camera>,
+    public ::android::hardware::BnCameraClient
+{
+public:
+    enum {
+        USE_CALLING_UID = ::android::hardware::ICameraService::USE_CALLING_UID
+    };
+    enum {
+        USE_CALLING_PID = ::android::hardware::ICameraService::USE_CALLING_PID
+    };
+
+            // construct a camera client from an existing remote
+    static  sp<Camera>  create(const sp<::android::hardware::ICamera>& camera);
+    static  sp<Camera>  connect(int cameraId,
+                                const String16& clientPackageName,
+                                int clientUid, int clientPid);
+
+    static  status_t  connectLegacy(int cameraId, int halVersion,
+                                     const String16& clientPackageName,
+                                     int clientUid, sp<Camera>& camera);
+
+            virtual     ~Camera();
+
+            status_t    reconnect();
+            status_t    lock();
+            status_t    unlock();
+
+            // pass the buffered IGraphicBufferProducer to the camera service
+            status_t    setPreviewTarget(const sp<IGraphicBufferProducer>& bufferProducer);
+
+            // start preview mode, must call setPreviewTarget first
+            status_t    startPreview();
+
+            // stop preview mode
+            void        stopPreview();
+
+            // get preview state
+            bool        previewEnabled();
+
+            // start recording mode, must call setPreviewTarget first
+            status_t    startRecording();
+
+            // stop recording mode
+            void        stopRecording();
+
+            // get recording state
+            bool        recordingEnabled();
+
+            // release a recording frame
+            void        releaseRecordingFrame(const sp<IMemory>& mem);
+
+            // release a recording frame handle
+            void        releaseRecordingFrameHandle(native_handle_t *handle);
+
+            // release a batch of recording frame handles
+            void        releaseRecordingFrameHandleBatch(
+                    const std::vector<native_handle_t*> handles);
+
+            // autoFocus - status returned from callback
+            status_t    autoFocus();
+
+            // cancel auto focus
+            status_t    cancelAutoFocus();
+
+            // take a picture - picture returned from callback
+            status_t    takePicture(int msgType);
+
+            // set preview/capture parameters - key/value pairs
+            status_t    setParameters(const String8& params);
+
+            // get preview/capture parameters - key/value pairs
+            String8     getParameters() const;
+
+            // send command to camera driver
+            status_t    sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
+
+            // Tell camera how to pass video buffers. videoBufferMode is one of VIDEO_BUFFER_MODE_*.
+            // Returns OK if the specified video buffer mode is supported. If videoBufferMode is
+            // VIDEO_BUFFER_MODE_BUFFER_QUEUE, setVideoTarget() must be called before starting
+            // video recording.
+            status_t    setVideoBufferMode(int32_t videoBufferMode);
+
+            // Set the video buffer producer for camera to use in VIDEO_BUFFER_MODE_BUFFER_QUEUE
+            // mode.
+            status_t    setVideoTarget(const sp<IGraphicBufferProducer>& bufferProducer);
+
+            void        setListener(const sp<CameraListener>& listener);
+            void        setRecordingProxyListener(const sp<ICameraRecordingProxyListener>& listener);
+
+            // Configure preview callbacks to app. Only one of the older
+            // callbacks or the callback surface can be active at the same time;
+            // enabling one will disable the other if active. Flags can be
+            // disabled by calling it with CAMERA_FRAME_CALLBACK_FLAG_NOOP, and
+            // Target by calling it with a NULL interface.
+            void        setPreviewCallbackFlags(int preview_callback_flag);
+            status_t    setPreviewCallbackTarget(
+                    const sp<IGraphicBufferProducer>& callbackProducer);
+
+            sp<ICameraRecordingProxy> getRecordingProxy();
+
+    // ICameraClient interface
+    virtual void        notifyCallback(int32_t msgType, int32_t ext, int32_t ext2);
+    virtual void        dataCallback(int32_t msgType, const sp<IMemory>& dataPtr,
+                                     camera_frame_metadata_t *metadata);
+    virtual void        dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr);
+    virtual void        recordingFrameHandleCallbackTimestamp(nsecs_t timestamp, native_handle_t* handle);
+    virtual void        recordingFrameHandleCallbackTimestampBatch(
+                                const std::vector<nsecs_t>& timestamps,
+                                const std::vector<native_handle_t*>& handles);
+
+
+    class RecordingProxy : public BnCameraRecordingProxy
+    {
+    public:
+        explicit RecordingProxy(const sp<Camera>& camera);
+
+        // ICameraRecordingProxy interface
+        virtual status_t startRecording(const sp<ICameraRecordingProxyListener>& listener);
+        virtual void stopRecording();
+        virtual void releaseRecordingFrame(const sp<IMemory>& mem);
+        virtual void releaseRecordingFrameHandle(native_handle_t* handle);
+        virtual void releaseRecordingFrameHandleBatch(
+                const std::vector<native_handle_t*>& handles);
+
+    private:
+        sp<Camera>         mCamera;
+    };
+
+protected:
+    explicit            Camera(int cameraId);
+                        Camera(const Camera&);
+                        Camera& operator=(const Camera);
+
+    sp<ICameraRecordingProxyListener>  mRecordingProxyListener;
+
+    friend class        CameraBase;
+};
+
+}; // namespace android
+
+#endif
diff --git a/camera/include/camera/CameraBase.h b/camera/include/camera/CameraBase.h
new file mode 100644
index 0000000..74a2dce
--- /dev/null
+++ b/camera/include/camera/CameraBase.h
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_BASE_H
+#define ANDROID_HARDWARE_CAMERA_BASE_H
+
+#include <android/hardware/ICameraServiceListener.h>
+
+#include <utils/Mutex.h>
+#include <binder/BinderService.h>
+
+struct camera_frame_metadata;
+
+namespace android {
+
+namespace hardware {
+
+
+class ICameraService;
+class ICameraServiceListener;
+
+enum {
+    /** The facing of the camera is opposite to that of the screen. */
+    CAMERA_FACING_BACK = 0,
+    /** The facing of the camera is the same as that of the screen. */
+    CAMERA_FACING_FRONT = 1,
+};
+
+struct CameraInfo : public android::Parcelable {
+    /**
+     * The direction that the camera faces to. It should be CAMERA_FACING_BACK
+     * or CAMERA_FACING_FRONT.
+     */
+    int facing;
+
+    /**
+     * The orientation of the camera image. The value is the angle that the
+     * camera image needs to be rotated clockwise so it shows correctly on the
+     * display in its natural orientation. It should be 0, 90, 180, or 270.
+     *
+     * For example, suppose a device has a naturally tall screen. The
+     * back-facing camera sensor is mounted in landscape. You are looking at
+     * the screen. If the top side of the camera sensor is aligned with the
+     * right edge of the screen in natural orientation, the value should be
+     * 90. If the top side of a front-facing camera sensor is aligned with the
+     * right of the screen, the value should be 270.
+     */
+    int orientation;
+
+    virtual status_t writeToParcel(android::Parcel* parcel) const;
+    virtual status_t readFromParcel(const android::Parcel* parcel);
+
+};
+
+/**
+ * Basic status information about a camera device - its name and its current
+ * state.
+ */
+struct CameraStatus : public android::Parcelable {
+    /**
+     * The name of the camera device
+     */
+    String8 cameraId;
+
+    /**
+     * Its current status, one of the ICameraService::STATUS_* fields
+     */
+    int32_t status;
+
+    virtual status_t writeToParcel(android::Parcel* parcel) const;
+    virtual status_t readFromParcel(const android::Parcel* parcel);
+
+    CameraStatus(String8 id, int32_t s) : cameraId(id), status(s) {}
+    CameraStatus() : status(ICameraServiceListener::STATUS_PRESENT) {}
+};
+
+} // namespace hardware
+
+using hardware::CameraInfo;
+
+
+template <typename TCam>
+struct CameraTraits {
+};
+
+template <typename TCam, typename TCamTraits = CameraTraits<TCam> >
+class CameraBase : public IBinder::DeathRecipient
+{
+public:
+    typedef typename TCamTraits::TCamListener       TCamListener;
+    typedef typename TCamTraits::TCamUser           TCamUser;
+    typedef typename TCamTraits::TCamCallbacks      TCamCallbacks;
+    typedef typename TCamTraits::TCamConnectService TCamConnectService;
+
+    static sp<TCam>      connect(int cameraId,
+                                 const String16& clientPackageName,
+                                 int clientUid, int clientPid);
+    virtual void         disconnect();
+
+    void                 setListener(const sp<TCamListener>& listener);
+
+    static int           getNumberOfCameras();
+
+    static status_t      getCameraInfo(int cameraId,
+                                       /*out*/
+                                       struct hardware::CameraInfo* cameraInfo);
+
+    sp<TCamUser>         remote();
+
+    // Status is set to 'UNKNOWN_ERROR' after successful (re)connection
+    status_t             getStatus();
+
+protected:
+    CameraBase(int cameraId);
+    virtual              ~CameraBase();
+
+    ////////////////////////////////////////////////////////
+    // TCamCallbacks implementation
+    ////////////////////////////////////////////////////////
+    virtual void         notifyCallback(int32_t msgType, int32_t ext,
+                                        int32_t ext2);
+
+    ////////////////////////////////////////////////////////
+    // Common instance variables
+    ////////////////////////////////////////////////////////
+    Mutex                            mLock;
+
+    virtual void                     binderDied(const wp<IBinder>& who);
+
+    // helper function to obtain camera service handle
+    static const sp<::android::hardware::ICameraService> getCameraService();
+
+    sp<TCamUser>                     mCamera;
+    status_t                         mStatus;
+
+    sp<TCamListener>                 mListener;
+
+    const int                        mCameraId;
+
+    typedef CameraBase<TCam>         CameraBaseT;
+};
+
+}; // namespace android
+
+#endif
diff --git a/include/camera/CameraMetadata.h b/camera/include/camera/CameraMetadata.h
similarity index 100%
rename from include/camera/CameraMetadata.h
rename to camera/include/camera/CameraMetadata.h
diff --git a/include/camera/CameraParameters.h b/camera/include/camera/CameraParameters.h
similarity index 100%
rename from include/camera/CameraParameters.h
rename to camera/include/camera/CameraParameters.h
diff --git a/camera/include/camera/CameraParameters2.h b/camera/include/camera/CameraParameters2.h
new file mode 100644
index 0000000..f691cd6
--- /dev/null
+++ b/camera/include/camera/CameraParameters2.h
@@ -0,0 +1,203 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_PARAMETERS2_H
+#define ANDROID_HARDWARE_CAMERA_PARAMETERS2_H
+
+#include <utils/Vector.h>
+#include <utils/String8.h>
+#include "CameraParameters.h"
+
+namespace android {
+
+/**
+ * A copy of CameraParameters plus ABI-breaking changes. Needed
+ * because some camera HALs directly link to CameraParameters and cannot
+ * tolerate an ABI change.
+ */
+class CameraParameters2
+{
+public:
+    CameraParameters2();
+    CameraParameters2(const String8 &params) { unflatten(params); }
+    ~CameraParameters2();
+
+    String8 flatten() const;
+    void unflatten(const String8 &params);
+
+    void set(const char *key, const char *value);
+    void set(const char *key, int value);
+    void setFloat(const char *key, float value);
+    // Look up string value by key.
+    // -- The string remains valid until the next set/remove of the same key,
+    //    or until the map gets cleared.
+    const char *get(const char *key) const;
+    int getInt(const char *key) const;
+    float getFloat(const char *key) const;
+
+    // Compare the order that key1 was set vs the order that key2 was set.
+    //
+    // Sets the order parameter to an integer less than, equal to, or greater
+    // than zero if key1's set order was respectively, to be less than, to
+    // match, or to be greater than key2's set order.
+    //
+    // Error codes:
+    //  * NAME_NOT_FOUND - if either key has not been set previously
+    //  * BAD_VALUE - if any of the parameters are NULL
+    status_t compareSetOrder(const char *key1, const char *key2,
+            /*out*/
+            int *order) const;
+
+    void remove(const char *key);
+
+    void setPreviewSize(int width, int height);
+    void getPreviewSize(int *width, int *height) const;
+    void getSupportedPreviewSizes(Vector<Size> &sizes) const;
+
+    // Set the dimensions in pixels to the given width and height
+    // for video frames. The given width and height must be one
+    // of the supported dimensions returned from
+    // getSupportedVideoSizes(). Must not be called if
+    // getSupportedVideoSizes() returns an empty Vector of Size.
+    void setVideoSize(int width, int height);
+    // Retrieve the current dimensions (width and height)
+    // in pixels for video frames, which must be one of the
+    // supported dimensions returned from getSupportedVideoSizes().
+    // Must not be called if getSupportedVideoSizes() returns an
+    // empty Vector of Size.
+    void getVideoSize(int *width, int *height) const;
+    // Retrieve a Vector of supported dimensions (width and height)
+    // in pixels for video frames. If sizes returned from the method
+    // is empty, the camera does not support calls to setVideoSize()
+    // or getVideoSize(). In adddition, it also indicates that
+    // the camera only has a single output, and does not have
+    // separate output for video frames and preview frame.
+    void getSupportedVideoSizes(Vector<Size> &sizes) const;
+    // Retrieve the preferred preview size (width and height) in pixels
+    // for video recording. The given width and height must be one of
+    // supported preview sizes returned from getSupportedPreviewSizes().
+    // Must not be called if getSupportedVideoSizes() returns an empty
+    // Vector of Size. If getSupportedVideoSizes() returns an empty
+    // Vector of Size, the width and height returned from this method
+    // is invalid, and is "-1x-1".
+    void getPreferredPreviewSizeForVideo(int *width, int *height) const;
+
+    void setPreviewFrameRate(int fps);
+    int getPreviewFrameRate() const;
+    void getPreviewFpsRange(int *min_fps, int *max_fps) const;
+    void setPreviewFpsRange(int min_fps, int max_fps);
+    void setPreviewFormat(const char *format);
+    const char *getPreviewFormat() const;
+    void setPictureSize(int width, int height);
+    void getPictureSize(int *width, int *height) const;
+    void getSupportedPictureSizes(Vector<Size> &sizes) const;
+    void setPictureFormat(const char *format);
+    const char *getPictureFormat() const;
+
+    void dump() const;
+    status_t dump(int fd, const Vector<String16>& args) const;
+
+private:
+
+    // Quick and dirty map that maintains insertion order
+    template <typename KeyT, typename ValueT>
+    struct OrderedKeyedVector {
+
+        ssize_t add(const KeyT& key, const ValueT& value) {
+            return mList.add(Pair(key, value));
+        }
+
+        size_t size() const {
+            return mList.size();
+        }
+
+        const KeyT& keyAt(size_t idx) const {
+            return mList[idx].mKey;
+        }
+
+        const ValueT& valueAt(size_t idx) const {
+            return mList[idx].mValue;
+        }
+
+        const ValueT& valueFor(const KeyT& key) const {
+            ssize_t i = indexOfKey(key);
+            LOG_ALWAYS_FATAL_IF(i<0, "%s: key not found", __PRETTY_FUNCTION__);
+
+            return valueAt(i);
+        }
+
+        ssize_t indexOfKey(const KeyT& key) const {
+                size_t vectorIdx = 0;
+                for (; vectorIdx < mList.size(); ++vectorIdx) {
+                    if (mList[vectorIdx].mKey == key) {
+                        return (ssize_t) vectorIdx;
+                    }
+                }
+
+                return NAME_NOT_FOUND;
+        }
+
+        ssize_t removeItem(const KeyT& key) {
+            ssize_t vectorIdx = indexOfKey(key);
+
+            if (vectorIdx < 0) {
+                return vectorIdx;
+            }
+
+            return mList.removeAt(vectorIdx);
+        }
+
+        void clear() {
+            mList.clear();
+        }
+
+        // Same as removing and re-adding. The key's index changes to max.
+        ssize_t replaceValueFor(const KeyT& key, const ValueT& value) {
+            removeItem(key);
+            return add(key, value);
+        }
+
+    private:
+
+        struct Pair {
+            Pair() : mKey(), mValue() {}
+            Pair(const KeyT& key, const ValueT& value) :
+                    mKey(key),
+                    mValue(value) {}
+            KeyT   mKey;
+            ValueT mValue;
+        };
+
+        Vector<Pair> mList;
+    };
+
+    /**
+     * Order matters: Keys that are set() later are stored later in the map.
+     *
+     * If two keys have meaning that conflict, then the later-set key
+     * wins.
+     *
+     * For example, preview FPS and preview FPS range conflict since only
+     * we only want to use the FPS range if that's the last thing that was set.
+     * So in that case, only use preview FPS range if it was set later than
+     * the preview FPS.
+     */
+    OrderedKeyedVector<String8,String8>    mMap;
+};
+
+}; // namespace android
+
+#endif
diff --git a/include/camera/CameraUtils.h b/camera/include/camera/CameraUtils.h
similarity index 100%
rename from include/camera/CameraUtils.h
rename to camera/include/camera/CameraUtils.h
diff --git a/camera/include/camera/CaptureResult.h b/camera/include/camera/CaptureResult.h
new file mode 100644
index 0000000..917d953
--- /dev/null
+++ b/camera/include/camera/CaptureResult.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAPTURERESULT_H
+#define ANDROID_HARDWARE_CAPTURERESULT_H
+
+#include <utils/RefBase.h>
+#include <binder/Parcelable.h>
+#include <camera/CameraMetadata.h>
+
+
+namespace android {
+
+namespace hardware {
+namespace camera2 {
+namespace impl {
+
+/**
+ * CaptureResultExtras is a structure to encapsulate various indices for a capture result.
+ * These indices are framework-internal and not sent to the HAL.
+ */
+struct CaptureResultExtras : public android::Parcelable {
+    /**
+     * An integer to index the request sequence that this result belongs to.
+     */
+    int32_t requestId;
+
+    /**
+     * An integer to index this result inside a request sequence, starting from 0.
+     */
+    int32_t burstId;
+
+    /**
+     * TODO: Add documentation for this field.
+     */
+    int32_t afTriggerId;
+
+    /**
+     * TODO: Add documentation for this field.
+     */
+    int32_t precaptureTriggerId;
+
+    /**
+     * A 64bit integer to index the frame number associated with this result.
+     */
+    int64_t frameNumber;
+
+    /**
+     * The partial result count (index) for this capture result.
+     */
+    int32_t partialResultCount;
+
+    /**
+     * For buffer drop errors, the stream ID for the stream that lost a buffer.
+     * Otherwise -1.
+     */
+    int32_t errorStreamId;
+
+    /**
+     * Constructor initializes object as invalid by setting requestId to be -1.
+     */
+    CaptureResultExtras()
+        : requestId(-1),
+          burstId(0),
+          afTriggerId(0),
+          precaptureTriggerId(0),
+          frameNumber(0),
+          partialResultCount(0),
+          errorStreamId(-1) {
+    }
+
+    /**
+     * This function returns true if it's a valid CaptureResultExtras object.
+     * Otherwise, returns false. It is valid only when requestId is non-negative.
+     */
+    bool isValid();
+
+    virtual status_t                readFromParcel(const android::Parcel* parcel) override;
+    virtual status_t                writeToParcel(android::Parcel* parcel) const override;
+};
+} // namespace impl
+} // namespace camera2
+} // namespace hardware
+
+using hardware::camera2::impl::CaptureResultExtras;
+
+struct CaptureResult : public virtual LightRefBase<CaptureResult> {
+    CameraMetadata          mMetadata;
+    CaptureResultExtras     mResultExtras;
+
+    CaptureResult();
+
+    CaptureResult(const CaptureResult& otherResult);
+
+    status_t                readFromParcel(android::Parcel* parcel);
+    status_t                writeToParcel(android::Parcel* parcel) const;
+};
+
+}
+
+#endif /* ANDROID_HARDWARE_CAPTURERESULT_H */
diff --git a/camera/include/camera/ICameraRecordingProxy.h b/camera/include/camera/ICameraRecordingProxy.h
new file mode 100644
index 0000000..02af2f3
--- /dev/null
+++ b/camera/include/camera/ICameraRecordingProxy.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_H
+#define ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_H
+
+#include <vector>
+#include <binder/IInterface.h>
+#include <cutils/native_handle.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class ICameraRecordingProxyListener;
+class IMemory;
+class Parcel;
+
+/*
+ * The purpose of ICameraRecordingProxy and ICameraRecordingProxyListener is to
+ * allow applications using the camera during recording.
+ *
+ * Camera service allows only one client at a time. Since camcorder application
+ * needs to own the camera to do things like zoom, the media recorder cannot
+ * access the camera directly during recording. So ICameraRecordingProxy is a
+ * proxy of ICamera, which allows the media recorder to start/stop the recording
+ * and release recording frames. ICameraRecordingProxyListener is an interface
+ * that allows the recorder to receive video frames during recording.
+ *
+ * ICameraRecordingProxy
+ *   startRecording()
+ *   stopRecording()
+ *   releaseRecordingFrame()
+ *
+ * ICameraRecordingProxyListener
+ *   dataCallbackTimestamp()
+
+ * The camcorder app opens the camera and starts the preview. The app passes
+ * ICamera and ICameraRecordingProxy to the media recorder by
+ * MediaRecorder::setCamera(). The recorder uses ICamera to setup the camera in
+ * MediaRecorder::start(). After setup, the recorder disconnects from camera
+ * service. The recorder calls ICameraRecordingProxy::startRecording() and
+ * passes a ICameraRecordingProxyListener to the app. The app connects back to
+ * camera service and starts the recording. The app owns the camera and can do
+ * things like zoom. The media recorder receives the video frames from the
+ * listener and releases them by ICameraRecordingProxy::releaseRecordingFrame.
+ * The recorder calls ICameraRecordingProxy::stopRecording() to stop the
+ * recording.
+ *
+ * The call sequences are as follows:
+ * 1. The app: Camera.unlock().
+ * 2. The app: MediaRecorder.setCamera().
+ * 3. Start recording
+ *    (1) The app: MediaRecorder.start().
+ *    (2) The recorder: ICamera.unlock() and ICamera.disconnect().
+ *    (3) The recorder: ICameraRecordingProxy.startRecording().
+ *    (4) The app: ICamera.reconnect().
+ *    (5) The app: ICamera.startRecording().
+ * 4. During recording
+ *    (1) The recorder: receive frames from ICameraRecordingProxyListener.dataCallbackTimestamp()
+ *    (2) The recorder: release frames by ICameraRecordingProxy.releaseRecordingFrame().
+ * 5. Stop recording
+ *    (1) The app: MediaRecorder.stop()
+ *    (2) The recorder: ICameraRecordingProxy.stopRecording().
+ *    (3) The app: ICamera.stopRecording().
+ */
+
+class ICameraRecordingProxy: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(CameraRecordingProxy);
+
+    virtual status_t        startRecording(const sp<ICameraRecordingProxyListener>& listener) = 0;
+    virtual void            stopRecording() = 0;
+    virtual void            releaseRecordingFrame(const sp<IMemory>& mem) = 0;
+    virtual void            releaseRecordingFrameHandle(native_handle_t *handle) = 0;
+    virtual void            releaseRecordingFrameHandleBatch(
+                                    const std::vector<native_handle_t*>& handles) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnCameraRecordingProxy: public BnInterface<ICameraRecordingProxy>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif
diff --git a/camera/include/camera/ICameraRecordingProxyListener.h b/camera/include/camera/ICameraRecordingProxyListener.h
new file mode 100644
index 0000000..da03c56
--- /dev/null
+++ b/camera/include/camera/ICameraRecordingProxyListener.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_LISTENER_H
+#define ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_LISTENER_H
+
+#include <vector>
+#include <binder/IInterface.h>
+#include <cutils/native_handle.h>
+#include <stdint.h>
+#include <utils/RefBase.h>
+#include <utils/Timers.h>
+
+namespace android {
+
+class Parcel;
+class IMemory;
+
+class ICameraRecordingProxyListener: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(CameraRecordingProxyListener);
+
+    virtual void dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType,
+                                       const sp<IMemory>& data) = 0;
+
+    virtual void recordingFrameHandleCallbackTimestamp(nsecs_t timestamp,
+                                                       native_handle_t* handle) = 0;
+
+    virtual void recordingFrameHandleCallbackTimestampBatch(
+            const std::vector<nsecs_t>& timestamps,
+            const std::vector<native_handle_t*>& handles) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnCameraRecordingProxyListener: public BnInterface<ICameraRecordingProxyListener>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif
diff --git a/include/camera/ICameraServiceProxy.h b/camera/include/camera/ICameraServiceProxy.h
similarity index 100%
rename from include/camera/ICameraServiceProxy.h
rename to camera/include/camera/ICameraServiceProxy.h
diff --git a/camera/include/camera/VendorTagDescriptor.h b/camera/include/camera/VendorTagDescriptor.h
new file mode 100644
index 0000000..904fba2
--- /dev/null
+++ b/camera/include/camera/VendorTagDescriptor.h
@@ -0,0 +1,249 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef VENDOR_TAG_DESCRIPTOR_H
+
+#include <binder/Parcelable.h>
+#include <utils/Vector.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/RefBase.h>
+#include <system/camera_vendor_tags.h>
+#include <unordered_map>
+#include <stdint.h>
+
+namespace android {
+
+class VendorTagDescriptor;
+
+namespace hardware {
+namespace camera2 {
+namespace params {
+
+/**
+ * VendorTagDescriptor objects are parcelable containers for the vendor tag
+ * definitions provided, and are typically used to pass the vendor tag
+ * information enumerated by the HAL to clients of the camera service.
+ */
+class VendorTagDescriptor : public Parcelable {
+    public:
+        virtual ~VendorTagDescriptor();
+
+        VendorTagDescriptor();
+        VendorTagDescriptor(const VendorTagDescriptor& src);
+        VendorTagDescriptor& operator=(const VendorTagDescriptor& rhs);
+
+        void copyFrom(const VendorTagDescriptor& src);
+
+        /**
+         * The following 'get*' methods implement the corresponding
+         * functions defined in
+         * system/media/camera/include/system/camera_vendor_tags.h
+         */
+
+        // Returns the number of vendor tags defined.
+        int getTagCount() const;
+
+        // Returns an array containing the id's of vendor tags defined.
+        void getTagArray(uint32_t* tagArray) const;
+
+        // Returns the section name string for a given vendor tag id.
+        const char* getSectionName(uint32_t tag) const;
+
+        // Returns the tag name string for a given vendor tag id.
+        const char* getTagName(uint32_t tag) const;
+
+        // Returns the tag type for a given vendor tag id.
+        int getTagType(uint32_t tag) const;
+
+        /**
+         * Write the VendorTagDescriptor object into the given parcel.
+         *
+         * Returns OK on success, or a negative error code.
+         */
+        virtual status_t writeToParcel(
+                /*out*/
+                android::Parcel* parcel) const override;
+
+        /**
+         * Convenience method to get a vector containing all vendor tag
+         * sections, or an empty vector if none are defined.
+         * The pointer is valid for the lifetime of the VendorTagDescriptor,
+         * or until readParcel or copyFrom is invoked.
+         */
+        const SortedVector<String8>* getAllSectionNames() const;
+
+        /**
+         * Lookup the tag id for a given tag name and section.
+         *
+         * Returns OK on success, or a negative error code.
+         */
+        status_t lookupTag(const String8& name, const String8& section, /*out*/uint32_t* tag) const;
+
+        /**
+         * Dump the currently configured vendor tags to a file descriptor.
+         */
+        void dump(int fd, int verbosity, int indentation) const;
+
+        /**
+         * Read values VendorTagDescriptor object from the given parcel.
+         *
+         * Returns OK on success, or a negative error code.
+         */
+        virtual status_t readFromParcel(const android::Parcel* parcel) override;
+
+    protected:
+        KeyedVector<String8, KeyedVector<String8, uint32_t>*> mReverseMapping;
+        KeyedVector<uint32_t, String8> mTagToNameMap;
+        KeyedVector<uint32_t, uint32_t> mTagToSectionMap; // Value is offset in mSections
+        KeyedVector<uint32_t, int32_t> mTagToTypeMap;
+        SortedVector<String8> mSections;
+        // must be int32_t to be compatible with Parcel::writeInt32
+        int32_t mTagCount;
+
+        vendor_tag_ops mVendorOps;
+};
+} /* namespace params */
+} /* namespace camera2 */
+} /* namespace hardware */
+
+/**
+ * This version of VendorTagDescriptor must be stored in Android sp<>, and adds support for using it
+ * as a global tag descriptor.
+ *
+ * It's a child class of the basic hardware::camera2::params::VendorTagDescriptor since basic
+ * Parcelable objects cannot require being kept in an sp<> and still work with auto-generated AIDL
+ * interface implementations.
+ */
+class VendorTagDescriptor :
+            public ::android::hardware::camera2::params::VendorTagDescriptor,
+            public LightRefBase<VendorTagDescriptor> {
+
+  public:
+
+    /**
+     * Create a VendorTagDescriptor object from the given vendor_tag_ops_t
+     * struct.
+     *
+     * Returns OK on success, or a negative error code.
+     */
+    static status_t createDescriptorFromOps(const vendor_tag_ops_t* vOps,
+            /*out*/
+            sp<VendorTagDescriptor>& descriptor);
+
+    /**
+     * Sets the global vendor tag descriptor to use for this process.
+     * Camera metadata operations that access vendor tags will use the
+     * vendor tag definitions set this way.
+     *
+     * Returns OK on success, or a negative error code.
+     */
+    static status_t setAsGlobalVendorTagDescriptor(const sp<VendorTagDescriptor>& desc);
+
+    /**
+     * Returns the global vendor tag descriptor used by this process.
+     * This will contain NULL if no vendor tags are defined.
+     */
+    static sp<VendorTagDescriptor> getGlobalVendorTagDescriptor();
+
+    /**
+     * Clears the global vendor tag descriptor used by this process.
+     */
+    static void clearGlobalVendorTagDescriptor();
+
+};
+
+namespace hardware {
+namespace camera2 {
+namespace params {
+
+class VendorTagDescriptorCache : public Parcelable {
+  public:
+
+    VendorTagDescriptorCache() {};
+
+    int32_t addVendorDescriptor(metadata_vendor_id_t id,
+            sp<android::VendorTagDescriptor> desc);
+
+    int32_t getVendorTagDescriptor(
+            metadata_vendor_id_t id,
+            sp<android::VendorTagDescriptor> *desc /*out*/);
+
+    // Parcelable interface
+    status_t writeToParcel(Parcel* parcel) const override;
+    status_t readFromParcel(const Parcel* parcel) override;
+
+    // Returns the number of vendor tags defined.
+    int getTagCount(metadata_vendor_id_t id) const;
+
+    // Returns an array containing the id's of vendor tags defined.
+    void getTagArray(uint32_t* tagArray, metadata_vendor_id_t id) const;
+
+    // Returns the section name string for a given vendor tag id.
+    const char* getSectionName(uint32_t tag, metadata_vendor_id_t id) const;
+
+    // Returns the tag name string for a given vendor tag id.
+    const char* getTagName(uint32_t tag, metadata_vendor_id_t id) const;
+
+    // Returns the tag type for a given vendor tag id.
+    int getTagType(uint32_t tag, metadata_vendor_id_t id) const;
+
+    /**
+     * Dump the currently configured vendor tags to a file descriptor.
+     */
+    void dump(int fd, int verbosity, int indentation) const;
+
+  protected:
+    std::unordered_map<metadata_vendor_id_t, sp<android::VendorTagDescriptor>> mVendorMap;
+    struct vendor_tag_cache_ops mVendorCacheOps;
+};
+
+} /* namespace params */
+} /* namespace camera2 */
+} /* namespace hardware */
+
+class VendorTagDescriptorCache :
+        public ::android::hardware::camera2::params::VendorTagDescriptorCache,
+        public LightRefBase<VendorTagDescriptorCache> {
+  public:
+
+    /**
+     * Sets the global vendor tag descriptor cache to use for this process.
+     * Camera metadata operations that access vendor tags will use the
+     * vendor tag definitions set this way.
+     *
+     * Returns OK on success, or a negative error code.
+     */
+    static status_t setAsGlobalVendorTagCache(
+            const sp<VendorTagDescriptorCache>& cache);
+
+    /**
+     * Returns the global vendor tag cache used by this process.
+     * This will contain NULL if no vendor tags are defined.
+     */
+    static sp<VendorTagDescriptorCache> getGlobalVendorTagCache();
+
+    /**
+     * Clears the global vendor tag cache used by this process.
+     */
+    static void clearGlobalVendorTagCache();
+
+};
+
+} /* namespace android */
+
+#define VENDOR_TAG_DESCRIPTOR_H
+#endif /* VENDOR_TAG_DESCRIPTOR_H */
diff --git a/camera/include/camera/android/hardware/ICamera.h b/camera/include/camera/android/hardware/ICamera.h
new file mode 100644
index 0000000..80823d6
--- /dev/null
+++ b/camera/include/camera/android/hardware/ICamera.h
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERA_H
+#define ANDROID_HARDWARE_ICAMERA_H
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <binder/Status.h>
+#include <utils/String8.h>
+
+namespace android {
+
+class IGraphicBufferProducer;
+class Surface;
+
+namespace hardware {
+
+class ICameraClient;
+
+class ICamera: public android::IInterface
+{
+    /**
+     * Keep up-to-date with ICamera.aidl in frameworks/base
+     */
+public:
+    enum {
+        // Pass real YUV data in video buffers through ICameraClient.dataCallbackTimestamp().
+        VIDEO_BUFFER_MODE_DATA_CALLBACK_YUV = 0,
+        // Pass metadata in video buffers through ICameraClient.dataCallbackTimestamp().
+        VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA = 1,
+        // Pass video buffers through IGraphicBufferProducer set with setVideoTarget().
+        VIDEO_BUFFER_MODE_BUFFER_QUEUE = 2,
+    };
+
+    DECLARE_META_INTERFACE(Camera);
+
+    virtual binder::Status  disconnect() = 0;
+
+    // connect new client with existing camera remote
+    virtual status_t        connect(const sp<ICameraClient>& client) = 0;
+
+    // prevent other processes from using this ICamera interface
+    virtual status_t        lock() = 0;
+
+    // allow other processes to use this ICamera interface
+    virtual status_t        unlock() = 0;
+
+    // pass the buffered IGraphicBufferProducer to the camera service
+    virtual status_t        setPreviewTarget(
+            const sp<IGraphicBufferProducer>& bufferProducer) = 0;
+
+    // set the preview callback flag to affect how the received frames from
+    // preview are handled. Enabling preview callback flags disables any active
+    // preview callback surface set by setPreviewCallbackTarget().
+    virtual void            setPreviewCallbackFlag(int flag) = 0;
+    // set a buffer interface to use for client-received preview frames instead
+    // of preview callback buffers. Passing a valid interface here disables any
+    // active preview callbacks set by setPreviewCallbackFlag(). Passing NULL
+    // disables the use of the callback target.
+    virtual status_t        setPreviewCallbackTarget(
+            const sp<IGraphicBufferProducer>& callbackProducer) = 0;
+
+    // start preview mode, must call setPreviewTarget first
+    virtual status_t        startPreview() = 0;
+
+    // stop preview mode
+    virtual void            stopPreview() = 0;
+
+    // get preview state
+    virtual bool            previewEnabled() = 0;
+
+    // start recording mode
+    virtual status_t        startRecording() = 0;
+
+    // stop recording mode
+    virtual void            stopRecording() = 0;
+
+    // get recording state
+    virtual bool            recordingEnabled() = 0;
+
+    // Release a recording frame that was received via ICameraClient::dataCallbackTimestamp.
+    virtual void            releaseRecordingFrame(const sp<IMemory>& mem) = 0;
+
+    // Release a recording frame handle that was received via
+    // ICameraClient::recordingFrameHandleCallbackTimestamp.
+    virtual void            releaseRecordingFrameHandle(native_handle_t *handle) = 0;
+
+    // Release a batch of recording frame handles that was received via
+    // ICameraClient::recordingFrameHandleCallbackTimestampBatch
+    virtual void            releaseRecordingFrameHandleBatch(
+            const std::vector<native_handle_t*>& handles) = 0;
+
+    // auto focus
+    virtual status_t        autoFocus() = 0;
+
+    // cancel auto focus
+    virtual status_t        cancelAutoFocus() = 0;
+
+    /*
+     * take a picture.
+     * @param msgType the message type an application selectively turn on/off
+     * on a photo-by-photo basis. The supported message types are:
+     * CAMERA_MSG_SHUTTER, CAMERA_MSG_RAW_IMAGE, CAMERA_MSG_COMPRESSED_IMAGE,
+     * and CAMERA_MSG_POSTVIEW_FRAME. Any other message types will be ignored.
+     */
+    virtual status_t        takePicture(int msgType) = 0;
+
+    // set preview/capture parameters - key/value pairs
+    virtual status_t        setParameters(const String8& params) = 0;
+
+    // get preview/capture parameters - key/value pairs
+    virtual String8         getParameters() const = 0;
+
+    // send command to camera driver
+    virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0;
+
+
+    // Tell camera how to pass video buffers. videoBufferMode is one of VIDEO_BUFFER_MODE_*.
+    // Returns OK if the specified video buffer mode is supported. If videoBufferMode is
+    // VIDEO_BUFFER_MODE_BUFFER_QUEUE, setVideoTarget() must be called before starting video
+    // recording.
+    virtual status_t        setVideoBufferMode(int32_t videoBufferMode) = 0;
+
+    // Set the video buffer producer for camera to use in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
+    virtual status_t        setVideoTarget(
+            const sp<IGraphicBufferProducer>& bufferProducer) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnCamera: public android::BnInterface<ICamera>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+} // namespace hardware
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/android/hardware/ICameraClient.h b/camera/include/camera/android/hardware/ICameraClient.h
new file mode 100644
index 0000000..8e46d17
--- /dev/null
+++ b/camera/include/camera/android/hardware/ICameraClient.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERA_APP_H
+#define ANDROID_HARDWARE_ICAMERA_APP_H
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <utils/Timers.h>
+#include <system/camera.h>
+
+namespace android {
+namespace hardware {
+
+class ICameraClient: public android::IInterface
+{
+public:
+    DECLARE_META_INTERFACE(CameraClient);
+
+    virtual void            notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2) = 0;
+    virtual void            dataCallback(int32_t msgType, const sp<IMemory>& data,
+                                         camera_frame_metadata_t *metadata) = 0;
+    virtual void            dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& data) = 0;
+
+    // Invoked to send a recording frame handle with a timestamp. Call
+    // ICamera::releaseRecordingFrameHandle to release the frame handle.
+    virtual void            recordingFrameHandleCallbackTimestamp(nsecs_t timestamp,
+                                         native_handle_t* handle) = 0;
+
+    // Invoked to send a batch of recording frame handles with timestamp. Call
+    // ICamera::releaseRecordingFrameHandleBatch to release the frame handles.
+    // Size of timestamps and handles must match
+    virtual void            recordingFrameHandleCallbackTimestampBatch(
+                                        const std::vector<nsecs_t>& timestamps,
+                                        const std::vector<native_handle_t*>& handles) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnCameraClient: public android::BnInterface<ICameraClient>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+} // namespace hardware
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/camera2/CaptureRequest.h b/camera/include/camera/camera2/CaptureRequest.h
new file mode 100644
index 0000000..0180183
--- /dev/null
+++ b/camera/include/camera/camera2/CaptureRequest.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_PHOTOGRAPHY_CAPTUREREQUEST_H
+#define ANDROID_HARDWARE_PHOTOGRAPHY_CAPTUREREQUEST_H
+
+#include <utils/RefBase.h>
+#include <utils/Vector.h>
+#include <binder/Parcelable.h>
+#include <camera/CameraMetadata.h>
+
+namespace android {
+
+class Surface;
+
+namespace hardware {
+namespace camera2 {
+
+struct CaptureRequest : public Parcelable {
+
+    // those are needed so we can use a forward declaration of Surface, otherwise
+    // the type is incomplete when the ctor/dtors are generated. This has the added
+    // benefit that ctor/dtors are not inlined, which is good because they're not trivial
+    // (because of the vtable and Vector<>)
+    CaptureRequest();
+    CaptureRequest(const CaptureRequest& rhs);
+    CaptureRequest(CaptureRequest&& rhs) noexcept;
+    virtual ~CaptureRequest();
+
+    CameraMetadata          mMetadata;
+    Vector<sp<Surface> >    mSurfaceList;
+    bool                    mIsReprocess;
+
+    /**
+     * Keep impl up-to-date with CaptureRequest.java in frameworks/base
+     */
+    status_t                readFromParcel(const android::Parcel* parcel) override;
+    status_t                writeToParcel(android::Parcel* parcel) const override;
+};
+
+} // namespace camera2
+} // namespace hardware
+
+struct CaptureRequest :
+        public RefBase, public hardware::camera2::CaptureRequest {
+  public:
+    // Same as android::hardware::camera2::CaptureRequest, except that you can
+    // put this in an sp<>
+};
+
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/camera2/OutputConfiguration.h b/camera/include/camera/camera2/OutputConfiguration.h
new file mode 100644
index 0000000..8e641c7
--- /dev/null
+++ b/camera/include/camera/camera2/OutputConfiguration.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA2_OUTPUTCONFIGURATION_H
+#define ANDROID_HARDWARE_CAMERA2_OUTPUTCONFIGURATION_H
+
+#include <gui/IGraphicBufferProducer.h>
+#include <binder/Parcelable.h>
+
+namespace android {
+
+class Surface;
+
+namespace hardware {
+namespace camera2 {
+namespace params {
+
+class OutputConfiguration : public android::Parcelable {
+public:
+
+    static const int INVALID_ROTATION;
+    static const int INVALID_SET_ID;
+    enum SurfaceType{
+        SURFACE_TYPE_UNKNOWN = -1,
+        SURFACE_TYPE_SURFACE_VIEW = 0,
+        SURFACE_TYPE_SURFACE_TEXTURE = 1
+    };
+    const std::vector<sp<IGraphicBufferProducer>>& getGraphicBufferProducers() const;
+    int                        getRotation() const;
+    int                        getSurfaceSetID() const;
+    int                        getSurfaceType() const;
+    int                        getWidth() const;
+    int                        getHeight() const;
+    bool                       isDeferred() const;
+    bool                       isShared() const;
+    /**
+     * Keep impl up-to-date with OutputConfiguration.java in frameworks/base
+     */
+    virtual status_t           writeToParcel(android::Parcel* parcel) const override;
+
+    virtual status_t           readFromParcel(const android::Parcel* parcel) override;
+
+    // getGraphicBufferProducer will be NULL
+    // getRotation will be INVALID_ROTATION
+    // getSurfaceSetID will be INVALID_SET_ID
+    OutputConfiguration();
+
+    // getGraphicBufferProducer will be NULL if error occurred
+    // getRotation will be INVALID_ROTATION if error occurred
+    // getSurfaceSetID will be INVALID_SET_ID if error occurred
+    OutputConfiguration(const android::Parcel& parcel);
+
+    OutputConfiguration(sp<IGraphicBufferProducer>& gbp, int rotation,
+            int surfaceSetID = INVALID_SET_ID);
+
+    bool operator == (const OutputConfiguration& other) const {
+        return ( mRotation == other.mRotation &&
+                mSurfaceSetID == other.mSurfaceSetID &&
+                mSurfaceType == other.mSurfaceType &&
+                mWidth == other.mWidth &&
+                mHeight == other.mHeight &&
+                mIsDeferred == other.mIsDeferred &&
+                mIsShared == other.mIsShared &&
+                gbpsEqual(other));
+    }
+    bool operator != (const OutputConfiguration& other) const {
+        return !(*this == other);
+    }
+    bool operator < (const OutputConfiguration& other) const {
+        if (*this == other) return false;
+        if (mSurfaceSetID != other.mSurfaceSetID) {
+            return mSurfaceSetID < other.mSurfaceSetID;
+        }
+        if (mSurfaceType != other.mSurfaceType) {
+            return mSurfaceType < other.mSurfaceType;
+        }
+        if (mWidth != other.mWidth) {
+            return mWidth < other.mWidth;
+        }
+        if (mHeight != other.mHeight) {
+            return mHeight < other.mHeight;
+        }
+        if (mRotation != other.mRotation) {
+            return mRotation < other.mRotation;
+        }
+        if (mIsDeferred != other.mIsDeferred) {
+            return mIsDeferred < other.mIsDeferred;
+        }
+        if (mIsShared != other.mIsShared) {
+            return mIsShared < other.mIsShared;
+        }
+        return gbpsLessThan(other);
+    }
+    bool operator > (const OutputConfiguration& other) const {
+        return (*this != other && !(*this < other));
+    }
+
+    bool gbpsEqual(const OutputConfiguration& other) const;
+    bool gbpsLessThan(const OutputConfiguration& other) const;
+private:
+    std::vector<sp<IGraphicBufferProducer>> mGbps;
+    int                        mRotation;
+    int                        mSurfaceSetID;
+    int                        mSurfaceType;
+    int                        mWidth;
+    int                        mHeight;
+    bool                       mIsDeferred;
+    bool                       mIsShared;
+    // helper function
+    static String16 readMaybeEmptyString16(const android::Parcel* parcel);
+};
+} // namespace params
+} // namespace camera2
+} // namespace hardware
+
+
+using hardware::camera2::params::OutputConfiguration;
+
+}; // namespace android
+
+#endif
diff --git a/camera/include/camera/camera2/SubmitInfo.h b/camera/include/camera/camera2/SubmitInfo.h
new file mode 100644
index 0000000..8f271c0
--- /dev/null
+++ b/camera/include/camera/camera2/SubmitInfo.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA2_UTIL_SUBMITINFO_H
+#define ANDROID_HARDWARE_CAMERA2_UTIL_SUBMITINFO_H
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+namespace android {
+namespace hardware {
+namespace camera2 {
+namespace utils {
+
+struct SubmitInfo : public android::Parcelable {
+public:
+
+    int32_t mRequestId;
+    int64_t mLastFrameNumber;
+
+    virtual status_t writeToParcel(android::Parcel *parcel) const override;
+    virtual status_t readFromParcel(const android::Parcel* parcel) override;
+
+};
+
+} // namespace utils
+} // namespace camera2
+} // namespace hardware
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/ndk/NdkCameraCaptureSession.h b/camera/include/camera/ndk/NdkCameraCaptureSession.h
new file mode 100644
index 0000000..d96f538
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraCaptureSession.h
@@ -0,0 +1,598 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraCaptureSession.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+#include <sys/cdefs.h>
+
+#include <android/native_window.h>
+#include "NdkCameraError.h"
+#include "NdkCameraMetadata.h"
+
+#ifndef _NDK_CAMERA_CAPTURE_SESSION_H
+#define _NDK_CAMERA_CAPTURE_SESSION_H
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+/**
+ * ACameraCaptureSession is an opaque type that manages frame captures of a camera device.
+ *
+ * A pointer can be obtained using {@link ACameraDevice_createCaptureSession} method.
+ */
+typedef struct ACameraCaptureSession ACameraCaptureSession;
+
+/**
+ * The definition of camera capture session state callback.
+ *
+ * @param context The optional application context provided by user in
+ *                {@link ACameraCaptureSession_stateCallbacks}.
+ * @param session The camera capture session whose state is changing.
+ */
+typedef void (*ACameraCaptureSession_stateCallback)(void* context, ACameraCaptureSession *session);
+
+typedef struct ACameraCaptureSession_stateCallbacks {
+    /// optional application context.
+    void*                               context;
+
+    /**
+     * This callback is called when the session is closed and deleted from memory.
+     *
+     * <p>A session is closed when {@link ACameraCaptureSession_close} is called, a new session
+     * is created by the parent camera device,
+     * or when the parent camera device is closed (either by the user closing the device,
+     * or due to a camera device disconnection or fatal error).</p>
+     *
+     * <p>Once this callback is called, all access to this ACameraCaptureSession object will cause
+     * a crash.</p>
+     */
+    ACameraCaptureSession_stateCallback onClosed;
+
+    /**
+     * This callback is called every time the session has no more capture requests to process.
+     *
+     * <p>This callback will be invoked any time the session finishes processing
+     * all of its active capture requests, and no repeating request or burst is set up.</p>
+     */
+    ACameraCaptureSession_stateCallback onReady;
+
+    /**
+     * This callback is called when the session starts actively processing capture requests.
+     *
+     * <p>If the session runs out of capture requests to process and calls {@link onReady},
+     * then this callback will be invoked again once new requests are submitted for capture.</p>
+     */
+    ACameraCaptureSession_stateCallback onActive;
+} ACameraCaptureSession_stateCallbacks;
+
+/// Enum for describing error reason in {@link ACameraCaptureFailure}
+enum {
+    /**
+     * The capture session has dropped this frame due to an
+     * {@link ACameraCaptureSession_abortCaptures} call.
+     */
+    CAPTURE_FAILURE_REASON_FLUSHED = 0,
+
+    /**
+     * The capture session has dropped this frame due to an error in the framework.
+     */
+    CAPTURE_FAILURE_REASON_ERROR
+};
+
+/// Struct to describe a capture failure
+typedef struct ACameraCaptureFailure {
+    /**
+     * The frame number associated with this failed capture.
+     *
+     * <p>Whenever a request has been processed, regardless of failed capture or success,
+     * it gets a unique frame number assigned to its future result/failed capture.</p>
+     *
+     * <p>This value monotonically increments, starting with 0,
+     * for every new result or failure; and the scope is the lifetime of the
+     * {@link ACameraDevice}.</p>
+     */
+    int64_t frameNumber;
+
+    /**
+     * Determine why the request was dropped, whether due to an error or to a user
+     * action.
+     *
+     * @see CAPTURE_FAILURE_REASON_ERROR
+     * @see CAPTURE_FAILURE_REASON_FLUSHED
+     */
+    int     reason;
+
+    /**
+     * The sequence ID for this failed capture that was returned by the
+     * {@link ACameraCaptureSession_capture} or {@link ACameraCaptureSession_setRepeatingRequest}.
+     *
+     * <p>The sequence ID is a unique monotonically increasing value starting from 0,
+     * incremented every time a new group of requests is submitted to the ACameraDevice.</p>
+     */
+    int     sequenceId;
+
+    /**
+     * Determine if the image was captured from the camera.
+     *
+     * <p>If the image was not captured, no image buffers will be available.
+     * If the image was captured, then image buffers may be available.</p>
+     *
+     */
+    bool    wasImageCaptured;
+} ACameraCaptureFailure;
+
+/**
+ * The definition of camera capture start callback.
+ *
+ * @param context The optional application context provided by user in
+ *                {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param request The capture request that is starting. Note that this pointer points to a copy of
+ *                capture request sent by application, so the address is different to what
+ *                application sent but the content will match. This request will be freed by
+ *                framework immediately after this callback returns.
+ * @param timestamp The timestamp when the capture is started. This timestmap will match
+ *                  {@link ACAMERA_SENSOR_TIMESTAMP} of the {@link ACameraMetadata} in
+ *                  {@link ACameraCaptureSession_captureCallbacks#onCaptureCompleted} callback.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_start)(
+        void* context, ACameraCaptureSession* session,
+        const ACaptureRequest* request, int64_t timestamp);
+
+/**
+ * The definition of camera capture progress/result callback.
+ *
+ * @param context The optional application context provided by user in
+ *                {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param request The capture request of interest. Note that this pointer points to a copy of
+ *                capture request sent by application, so the address is different to what
+ *                application sent but the content will match. This request will be freed by
+ *                framework immediately after this callback returns.
+ * @param result The capture result metadata reported by camera device. The memory is managed by
+ *                camera framework. Do not access this pointer after this callback returns.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_result)(
+        void* context, ACameraCaptureSession* session,
+        ACaptureRequest* request, const ACameraMetadata* result);
+
+/**
+ * The definition of camera capture failure callback.
+ *
+ * @param context The optional application context provided by user in
+ *                {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param request The capture request of interest. Note that this pointer points to a copy of
+ *                capture request sent by application, so the address is different to what
+ *                application sent but the content will match. This request will be freed by
+ *                framework immediately after this callback returns.
+ * @param failure The {@link ACameraCaptureFailure} desribes the capture failure. The memory is
+ *                managed by camera framework. Do not access this pointer after this callback
+ *                returns.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_failed)(
+        void* context, ACameraCaptureSession* session,
+        ACaptureRequest* request, ACameraCaptureFailure* failure);
+
+/**
+ * The definition of camera sequence end callback.
+ *
+ * @param context The optional application context provided by user in
+ *                {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param sequenceId The capture sequence ID of the finished sequence.
+ * @param frameNumber The frame number of the last frame of this sequence.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_sequenceEnd)(
+        void* context, ACameraCaptureSession* session,
+        int sequenceId, int64_t frameNumber);
+
+/**
+ * The definition of camera sequence aborted callback.
+ *
+ * @param context The optional application context provided by user in
+ *                {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param sequenceId The capture sequence ID of the aborted sequence.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_sequenceAbort)(
+        void* context, ACameraCaptureSession* session,
+        int sequenceId);
+
+/**
+ * The definition of camera buffer lost callback.
+ *
+ * @param context The optional application context provided by user in
+ *                {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param request The capture request of interest. Note that this pointer points to a copy of
+ *                capture request sent by application, so the address is different to what
+ *                application sent but the content will match. This request will be freed by
+ *                framework immediately after this callback returns.
+ * @param window The {@link ANativeWindow} that the lost buffer would have been sent to.
+ * @param frameNumber The frame number of the lost buffer.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_bufferLost)(
+        void* context, ACameraCaptureSession* session,
+        ACaptureRequest* request, ANativeWindow* window, int64_t frameNumber);
+
+typedef struct ACameraCaptureSession_captureCallbacks {
+    /// optional application context.
+    void*                                               context;
+
+    /**
+     * This callback is called when the camera device has started capturing
+     * the output image for the request, at the beginning of image exposure.
+     *
+     * <p>This callback is invoked right as
+     * the capture of a frame begins, so it is the most appropriate time
+     * for playing a shutter sound, or triggering UI indicators of capture.</p>
+     *
+     * <p>The request that is being used for this capture is provided, along
+     * with the actual timestamp for the start of exposure.
+     * This timestamp matches the timestamps that will be
+     * included in {@link ACAMERA_SENSOR_TIMESTAMP} of the {@link ACameraMetadata} in
+     * {@link onCaptureCompleted} callback,
+     * and in the buffers sent to each output ANativeWindow. These buffer
+     * timestamps are accessible through, for example,
+     * {@link AImage_getTimestamp} or
+     * <a href="http://developer.android.com/reference/android/graphics/SurfaceTexture.html#getTimestamp()">
+     * android.graphics.SurfaceTexture#getTimestamp()</a>.</p>
+     *
+     * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
+     * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
+     *
+     */
+    ACameraCaptureSession_captureCallback_start         onCaptureStarted;
+
+    /**
+     * This callback is called when an image capture makes partial forward progress; some
+     * (but not all) results from an image capture are available.
+     *
+     * <p>The result provided here will contain some subset of the fields of
+     * a full result. Multiple {@link onCaptureProgressed} calls may happen per
+     * capture; a given result field will only be present in one partial
+     * capture at most. The final {@link onCaptureCompleted} call will always
+     * contain all the fields (in particular, the union of all the fields of all
+     * the partial results composing the total result).</p>
+     *
+     * <p>For each request, some result data might be available earlier than others. The typical
+     * delay between each partial result (per request) is a single frame interval.
+     * For performance-oriented use-cases, applications should query the metadata they need
+     * to make forward progress from the partial results and avoid waiting for the completed
+     * result.</p>
+     *
+     * <p>For a particular request, {@link onCaptureProgressed} may happen before or after
+     * {@link onCaptureStarted}.</p>
+     *
+     * <p>Each request will generate at least `1` partial results, and at most
+     * {@link ACAMERA_REQUEST_PARTIAL_RESULT_COUNT} partial results.</p>
+     *
+     * <p>Depending on the request settings, the number of partial results per request
+     * will vary, although typically the partial count could be the same as long as the
+     * camera device subsystems enabled stay the same.</p>
+     *
+     * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
+     * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
+     */
+    ACameraCaptureSession_captureCallback_result        onCaptureProgressed;
+
+    /**
+     * This callback is called when an image capture has fully completed and all the
+     * result metadata is available.
+     *
+     * <p>This callback will always fire after the last {@link onCaptureProgressed};
+     * in other words, no more partial results will be delivered once the completed result
+     * is available.</p>
+     *
+     * <p>For performance-intensive use-cases where latency is a factor, consider
+     * using {@link onCaptureProgressed} instead.</p>
+     *
+     * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
+     * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
+     */
+    ACameraCaptureSession_captureCallback_result        onCaptureCompleted;
+
+    /**
+     * This callback is called instead of {@link onCaptureCompleted} when the
+     * camera device failed to produce a capture result for the
+     * request.
+     *
+     * <p>Other requests are unaffected, and some or all image buffers from
+     * the capture may have been pushed to their respective output
+     * streams.</p>
+     *
+     * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
+     * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
+     *
+     * @see ACameraCaptureFailure
+     */
+    ACameraCaptureSession_captureCallback_failed        onCaptureFailed;
+
+    /**
+     * This callback is called independently of the others in {@link ACameraCaptureSession_captureCallbacks},
+     * when a capture sequence finishes and all capture result
+     * or capture failure for it have been returned via this {@link ACameraCaptureSession_captureCallbacks}.
+     *
+     * <p>In total, there will be at least one result/failure returned by this listener
+     * before this callback is invoked. If the capture sequence is aborted before any
+     * requests have been processed, {@link onCaptureSequenceAborted} is invoked instead.</p>
+     */
+    ACameraCaptureSession_captureCallback_sequenceEnd   onCaptureSequenceCompleted;
+
+    /**
+     * This callback is called independently of the others in {@link ACameraCaptureSession_captureCallbacks},
+     * when a capture sequence aborts before any capture result
+     * or capture failure for it have been returned via this {@link ACameraCaptureSession_captureCallbacks}.
+     *
+     * <p>Due to the asynchronous nature of the camera device, not all submitted captures
+     * are immediately processed. It is possible to clear out the pending requests
+     * by a variety of operations such as {@link ACameraCaptureSession_stopRepeating} or
+     * {@link ACameraCaptureSession_abortCaptures}. When such an event happens,
+     * {@link onCaptureSequenceCompleted} will not be called.</p>
+     */
+    ACameraCaptureSession_captureCallback_sequenceAbort onCaptureSequenceAborted;
+
+    /**
+     * This callback is called if a single buffer for a capture could not be sent to its
+     * destination ANativeWindow.
+     *
+     * <p>If the whole capture failed, then {@link onCaptureFailed} will be called instead. If
+     * some but not all buffers were captured but the result metadata will not be available,
+     * then onCaptureFailed will be invoked with {@link ACameraCaptureFailure#wasImageCaptured}
+     * returning true, along with one or more calls to {@link onCaptureBufferLost} for the
+     * failed outputs.</p>
+     *
+     * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
+     * submitted, but the contents the ACaptureRequest will match what application submitted.
+     * The ANativeWindow pointer will always match what application submitted in
+     * {@link ACameraDevice_createCaptureSession}</p>
+     *
+     */
+    ACameraCaptureSession_captureCallback_bufferLost    onCaptureBufferLost;
+} ACameraCaptureSession_captureCallbacks;
+
+enum {
+    CAPTURE_SEQUENCE_ID_NONE = -1
+};
+
+/**
+ * Close this capture session.
+ *
+ * <p>Closing a session frees up the target output Surfaces of the session for reuse with either
+ * a new session, or to other APIs that can draw to Surfaces.</p>
+ *
+ * <p>Note that creating a new capture session with {@link ACameraDevice_createCaptureSession}
+ * will close any existing capture session automatically, and call the older session listener's
+ * {@link ACameraCaptureSession_stateCallbacks#onClosed} callback. Using
+ * {@link ACameraDevice_createCaptureSession} directly without closing is the recommended approach
+ * for quickly switching to a new session, since unchanged target outputs can be reused more
+ * efficiently.</p>
+ *
+ * <p>After a session is closed and before {@link ACameraCaptureSession_stateCallbacks#onClosed}
+ * is called, all methods invoked on the session will return {@link ACAMERA_ERROR_SESSION_CLOSED},
+ * and any repeating requests are stopped (as if {@link ACameraCaptureSession_stopRepeating} was
+ * called). However, any in-progress capture requests submitted to the session will be completed as
+ * normal; once all captures have completed and the session has been torn down,
+ * {@link ACameraCaptureSession_stateCallbacks#onClosed} callback will be called and the seesion
+ * will be removed from memory.</p>
+ *
+ * <p>Closing a session is idempotent; closing more than once has no effect.</p>
+ *
+ * @param session the capture session of interest
+ */
+void ACameraCaptureSession_close(ACameraCaptureSession* session);
+
+struct ACameraDevice;
+typedef struct ACameraDevice ACameraDevice;
+
+/**
+ * Get the ACameraDevice pointer associated with this capture session in the device argument
+ * if the method succeeds.
+ *
+ * @param session the capture session of interest
+ * @param device the {@link ACameraDevice} associated with session. Will be set to NULL
+ *        if the session is closed or this method fails.
+ * @return <ul><li>
+ *             {@link ACAMERA_OK} if the method call succeeds. The {@link ACameraDevice}
+ *                                will be stored in device argument</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session or device is NULL</li>
+ *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
+ *
+ */
+camera_status_t ACameraCaptureSession_getDevice(
+        ACameraCaptureSession* session, /*out*/ACameraDevice** device);
+
+/**
+ * Submit an array of requests to be captured in sequence as a burst in the minimum of time possible.
+ *
+ * <p>The burst will be captured in the minimum amount of time possible, and will not be
+ * interleaved with requests submitted by other capture or repeat calls.</p>
+ *
+ * <p>Each capture produces one {@link ACameraMetadata} as a capture result and image buffers for
+ * one or more target {@link ANativeWindow}s. The target ANativeWindows (set with
+ * {@link ACaptureRequest_addTarget}) must be a subset of the ANativeWindow provided when
+ * this capture session was created.</p>
+ *
+ * @param session the capture session of interest
+ * @param callbacks the {@link ACameraCaptureSession_captureCallbacks} to be associated this capture
+ *        sequence. No capture callback will be fired if this is set to NULL.
+ * @param numRequests number of requests in requests argument. Must be at least 1.
+ * @param requests an array of {@link ACaptureRequest} to be captured. Length must be at least
+ *        numRequests.
+ * @param captureSequenceId the capture sequence ID associated with this capture method invocation
+ *        will be stored here if this argument is not NULL and the method call succeeds.
+ *        When this argument is set to NULL, the capture sequence ID will not be returned.
+ *
+ * @return <ul><li>
+ *             {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
+ *             if it is not NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session or requests is NULL, or
+ *             if numRequests < 1</li>
+ *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
+ */
+camera_status_t ACameraCaptureSession_capture(
+        ACameraCaptureSession* session,
+        /*optional*/ACameraCaptureSession_captureCallbacks* callbacks,
+        int numRequests, ACaptureRequest** requests,
+        /*optional*/int* captureSequenceId);
+
+/**
+ * Request endlessly repeating capture of a sequence of images by this capture session.
+ *
+ * <p>With this method, the camera device will continually capture images,
+ * cycling through the settings in the provided list of
+ * {@link ACaptureRequest}, at the maximum rate possible.</p>
+ *
+ * <p>If a request is submitted through {@link ACameraCaptureSession_capture},
+ * the current repetition of the request list will be
+ * completed before the higher-priority request is handled. This guarantees
+ * that the application always receives a complete repeat burst captured in
+ * minimal time, instead of bursts interleaved with higher-priority
+ * captures, or incomplete captures.</p>
+ *
+ * <p>Repeating burst requests are a simple way for an application to
+ * maintain a preview or other continuous stream of frames where each
+ * request is different in a predicatable way, without having to continually
+ * submit requests through {@link ACameraCaptureSession_capture}.</p>
+ *
+ * <p>To stop the repeating capture, call {@link ACameraCaptureSession_stopRepeating}. Any
+ * ongoing burst will still be completed, however. Calling
+ * {@link ACameraCaptureSession_abortCaptures} will also clear the request.</p>
+ *
+ * <p>Calling this method will replace a previously-set repeating requests
+ * set up by this method, although any in-progress burst will be completed before the new repeat
+ * burst will be used.</p>
+ *
+ * @param session the capture session of interest
+ * @param callbacks the {@link ACameraCaptureSession_captureCallbacks} to be associated with this
+ *        capture sequence. No capture callback will be fired if callbacks is set to NULL.
+ * @param numRequests number of requests in requests array. Must be at least 1.
+ * @param requests an array of {@link ACaptureRequest} to be captured. Length must be at least
+ *        numRequests.
+ * @param captureSequenceId the capture sequence ID associated with this capture method invocation
+ *        will be stored here if this argument is not NULL and the method call succeeds.
+ *        When this argument is set to NULL, the capture sequence ID will not be returned.
+ *
+ * @return <ul><li>
+ *             {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
+ *             if it is not NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session or requests is NULL, or
+ *             if numRequests < 1</li>
+ *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for  some other reasons</li></ul>
+ */
+camera_status_t ACameraCaptureSession_setRepeatingRequest(
+        ACameraCaptureSession* session,
+        /*optional*/ACameraCaptureSession_captureCallbacks* callbacks,
+        int numRequests, ACaptureRequest** requests,
+        /*optional*/int* captureSequenceId);
+
+/**
+ * Cancel any ongoing repeating capture set by {@link ACameraCaptureSession_setRepeatingRequest}.
+ * Has no effect on requests submitted through {@link ACameraCaptureSession_capture}.
+ *
+ * <p>Any currently in-flight captures will still complete, as will any burst that is
+ * mid-capture. To ensure that the device has finished processing all of its capture requests
+ * and is in ready state, wait for the {@link ACameraCaptureSession_stateCallbacks#onReady} callback
+ * after calling this method.</p>
+ *
+ * @param session the capture session of interest
+ *
+ * @return <ul><li>
+ *             {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
+ *             if it is not NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session is NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
+ */
+camera_status_t ACameraCaptureSession_stopRepeating(ACameraCaptureSession* session);
+
+/**
+ * Discard all captures currently pending and in-progress as fast as possible.
+ *
+ * <p>The camera device will discard all of its current work as fast as possible. Some in-flight
+ * captures may complete successfully and call
+ * {@link ACameraCaptureSession_captureCallbacks#onCaptureCompleted},
+ * while others will trigger their {@link ACameraCaptureSession_captureCallbacks#onCaptureFailed}
+ * callbacks. If a repeating request list is set, it will be cleared.</p>
+ *
+ * <p>This method is the fastest way to switch the camera device to a new session with
+ * {@link ACameraDevice_createCaptureSession}, at the cost of discarding in-progress
+ * work. It must be called before the new session is created. Once all pending requests are
+ * either completed or thrown away, the {@link ACameraCaptureSession_stateCallbacks#onReady}
+ * callback will be called, if the session has not been closed. Otherwise, the
+ * {@link ACameraCaptureSession_stateCallbacks#onClosed}
+ * callback will be fired when a new session is created by the camera device and the previous
+ * session is being removed from memory.</p>
+ *
+ * <p>Cancelling will introduce at least a brief pause in the stream of data from the camera
+ * device, since once the camera device is emptied, the first new request has to make it through
+ * the entire camera pipeline before new output buffers are produced.</p>
+ *
+ * <p>This means that using ACameraCaptureSession_abortCaptures to simply remove pending requests is
+ * not recommended; it's best used for quickly switching output configurations, or for cancelling
+ * long in-progress requests (such as a multi-second capture).</p>
+ *
+ * @param session the capture session of interest
+ *
+ * @return <ul><li>
+ *             {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
+ *             if it is not NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session is NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
+ */
+camera_status_t ACameraCaptureSession_abortCaptures(ACameraCaptureSession* session);
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_CAPTURE_SESSION_H */
+
+/** @} */
diff --git a/camera/include/camera/ndk/NdkCameraDevice.h b/camera/include/camera/ndk/NdkCameraDevice.h
new file mode 100644
index 0000000..9b7f6f4
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraDevice.h
@@ -0,0 +1,669 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraDevice.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+#include <sys/cdefs.h>
+
+#include <android/native_window.h>
+#include "NdkCameraError.h"
+#include "NdkCaptureRequest.h"
+#include "NdkCameraCaptureSession.h"
+
+#ifndef _NDK_CAMERA_DEVICE_H
+#define _NDK_CAMERA_DEVICE_H
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+/**
+ * ACameraDevice is opaque type that provides access to a camera device.
+ *
+ * A pointer can be obtained using {@link ACameraManager_openCamera} method.
+ */
+typedef struct ACameraDevice ACameraDevice;
+
+/// Enum for ACameraDevice_ErrorStateCallback error code
+enum {
+    /**
+     * The camera device is in use already.
+     */
+    ERROR_CAMERA_IN_USE = 1,
+
+    /**
+     * The system-wide limit for number of open cameras or camera resources has
+     * been reached, and more camera devices cannot be opened until previous
+     * instances are closed.
+     */
+    ERROR_MAX_CAMERAS_IN_USE = 2,
+
+    /**
+     * The camera is disabled due to a device policy, and cannot be opened.
+     */
+    ERROR_CAMERA_DISABLED = 3,
+
+    /**
+     * The camera device has encountered a fatal error.
+     * <p>The camera device needs to be re-opened to be used again.</p>
+     */
+    ERROR_CAMERA_DEVICE = 4,
+
+    /**
+     * The camera service has encountered a fatal error.
+     * <p>The Android device may need to be shut down and restarted to restore
+     * camera function, or there may be a persistent hardware problem.
+     * An attempt at recovery may be possible by closing the
+     * CameraDevice and the CameraManager, and trying to acquire all resources
+     * again from scratch.</p>
+     */
+    ERROR_CAMERA_SERVICE = 5
+};
+
+/**
+ * Camera device state callbacks to be used in {@link ACameraDevice_stateCallbacks}.
+ *
+ * @param context The optional context in {@link ACameraDevice_stateCallbacks} will be
+ *                passed to this callback.
+ * @param device The {@link ACameraDevice} that is being disconnected.
+ */
+typedef void (*ACameraDevice_StateCallback)(void* context, ACameraDevice* device);
+
+/**
+ * Camera device error state callbacks to be used in {@link ACameraDevice_stateCallbacks}.
+ *
+ * @param context The optional context in {@link ACameraDevice_stateCallbacks} will be
+ *                passed to this callback.
+ * @param device The {@link ACameraDevice} that is being disconnected.
+ * @param error The error code describes the cause of this error callback. See the folowing
+ *              links for more detail.
+ *
+ * @see ERROR_CAMERA_IN_USE
+ * @see ERROR_MAX_CAMERAS_IN_USE
+ * @see ERROR_CAMERA_DISABLED
+ * @see ERROR_CAMERA_DEVICE
+ * @see ERROR_CAMERA_SERVICE
+ */
+typedef void (*ACameraDevice_ErrorStateCallback)(void* context, ACameraDevice* device, int error);
+
+typedef struct ACameraDevice_StateCallbacks {
+    /// optional application context.
+    void*                             context;
+
+    /**
+     * The function is  called when a camera device is no longer available for use.
+     *
+     * <p>Any attempt to call API methods on this ACameraDevice will return
+     * {@link ACAMERA_ERROR_CAMERA_DISCONNECTED}. The disconnection could be due to a
+     * change in security policy or permissions; the physical disconnection
+     * of a removable camera device; or the camera being needed for a
+     * higher-priority camera API client.</p>
+     *
+     * <p>Application should clean up the camera with {@link ACameraDevice_close} after
+     * this happens, as it is not recoverable until the camera can be opened
+     * again.</p>
+     *
+     */
+    ACameraDevice_StateCallback       onDisconnected;
+
+    /**
+     * The function called when a camera device has encountered a serious error.
+     *
+     * <p>This indicates a failure of the camera device or camera service in some way.
+     * Any attempt to call API methods on this ACameraDevice in the future will return
+     * {@link ACAMERA_ERROR_CAMERA_DISCONNECTED}.</p>
+     *
+     * <p>There may still be capture completion or camera stream callbacks that will be called
+     * after this error is received.</p>
+     *
+     * <p>Application should clean up the camera with {@link ACameraDevice_close} after this
+     * happens. Further attempts at recovery are error-code specific.</p>
+     *
+     */
+    ACameraDevice_ErrorStateCallback  onError;
+} ACameraDevice_stateCallbacks;
+
+/**
+ * Close the connection and free this ACameraDevice synchronously. Access to the ACameraDevice
+ * after calling this method will cause a crash.
+ *
+ * <p>After this call, all calls to the active ACameraCaptureSession associated to this
+ * ACameraDevice will return {@link ACAMERA_ERROR_SESSION_CLOSED} except for calls to
+ * {@link ACameraCaptureSession_close}.</p>
+ *
+ * <p>This method will stop all repeating captures sent via
+ * {@link ACameraCaptureSession_setRepeatingRequest} and block until all capture requests sent via
+ * {@link ACameraCaptureSession_capture} is complete. Once the method returns, the camera device
+ * will be removed from memory and access to the closed camera device pointer will cause a crash.</p>
+ *
+ * @param device the camera device to be closed
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if device is NULL.</li></ul>
+ */
+camera_status_t ACameraDevice_close(ACameraDevice* device);
+
+/**
+ * Return the camera id associated with this camera device.
+ *
+ * @param device the camera device to be closed
+ *
+ * @return camera ID string. The returned string is managed by framework and should not be
+ * delete/free by the application. Also the returned string must not be used after the device
+ * has been closed.
+ */
+const char* ACameraDevice_getId(const ACameraDevice* device);
+
+typedef enum {
+    /**
+     * Create a request suitable for a camera preview window. Specifically, this
+     * means that high frame rate is given priority over the highest-quality
+     * post-processing. These requests would normally be used with the
+     * {@link ACameraCaptureSession_setRepeatingRequest} method.
+     * This template is guaranteed to be supported on all camera devices.
+     *
+     * @see ACameraDevice_createCaptureRequest
+     */
+    TEMPLATE_PREVIEW = 1,
+
+    /**
+     * Create a request suitable for still image capture. Specifically, this
+     * means prioritizing image quality over frame rate. These requests would
+     * commonly be used with the {@link ACameraCaptureSession_capture} method.
+     * This template is guaranteed to be supported on all camera devices.
+     *
+     * @see ACameraDevice_createCaptureRequest
+     */
+    TEMPLATE_STILL_CAPTURE = 2,
+
+    /**
+     * Create a request suitable for video recording. Specifically, this means
+     * that a stable frame rate is used, and post-processing is set for
+     * recording quality. These requests would commonly be used with the
+     * {@link ACameraCaptureSession_setRepeatingRequest} method.
+     * This template is guaranteed to be supported on all camera devices.
+     *
+     * @see ACameraDevice_createCaptureRequest
+     */
+    TEMPLATE_RECORD = 3,
+
+    /**
+     * Create a request suitable for still image capture while recording
+     * video. Specifically, this means maximizing image quality without
+     * disrupting the ongoing recording. These requests would commonly be used
+     * with the {@link ACameraCaptureSession_capture} method while a request based on
+     * {@link TEMPLATE_RECORD} is is in use with {@link ACameraCaptureSession_setRepeatingRequest}.
+     * This template is guaranteed to be supported on all camera devices.
+     *
+     * @see ACameraDevice_createCaptureRequest
+     */
+    TEMPLATE_VIDEO_SNAPSHOT = 4,
+
+    /**
+     * Create a request suitable for zero shutter lag still capture. This means
+     * means maximizing image quality without compromising preview frame rate.
+     * AE/AWB/AF should be on auto mode.
+     *
+     * @see ACameraDevice_createCaptureRequest
+     */
+    TEMPLATE_ZERO_SHUTTER_LAG = 5,
+
+    /**
+     * A basic template for direct application control of capture
+     * parameters. All automatic control is disabled (auto-exposure, auto-white
+     * balance, auto-focus), and post-processing parameters are set to preview
+     * quality. The manual capture parameters (exposure, sensitivity, and so on)
+     * are set to reasonable defaults, but should be overriden by the
+     * application depending on the intended use case.
+     * This template is guaranteed to be supported on camera devices that support the
+     * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR} capability.
+     *
+     * @see ACameraDevice_createCaptureRequest
+     */
+    TEMPLATE_MANUAL = 6,
+} ACameraDevice_request_template;
+
+/**
+ * Create a ACaptureRequest for capturing images, initialized with template
+ * for a target use case.
+ *
+ * <p>The settings are chosen to be the best options for this camera device,
+ * so it is not recommended to reuse the same request for a different camera device.</p>
+ *
+ * @param device the camera device of interest
+ * @param templateId the type of capture request to be created.
+ *        See {@link ACameraDevice_request_template}.
+ * @param request the output request will be stored here if the method call succeeds.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds. The created capture request will be
+ *                                filled in request argument.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if device or request is NULL, templateId
+ *                                is undefined or camera device does not support requested template.
+ *                                </li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error.</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ *
+ * @see TEMPLATE_PREVIEW
+ * @see TEMPLATE_RECORD
+ * @see TEMPLATE_STILL_CAPTURE
+ * @see TEMPLATE_VIDEO_SNAPSHOT
+ * @see TEMPLATE_MANUAL
+ */
+camera_status_t ACameraDevice_createCaptureRequest(
+        const ACameraDevice* device, ACameraDevice_request_template templateId,
+        /*out*/ACaptureRequest** request);
+
+
+typedef struct ACaptureSessionOutputContainer ACaptureSessionOutputContainer;
+
+typedef struct ACaptureSessionOutput ACaptureSessionOutput;
+
+/**
+ * Create a capture session output container.
+ *
+ * <p>The container is used in {@link ACameraDevice_createCaptureSession} method to create a capture
+ * session. Use {@link ACaptureSessionOutputContainer_free} to free the container and its memory
+ * after application no longer needs the ACaptureSessionOutputContainer.</p>
+ *
+ * @param container the output {@link ACaptureSessionOutputContainer} will be stored here if the
+ *                  method call succeeds.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds. The created container will be
+ *                                filled in container argument.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if container is NULL.</li></ul>
+ */
+camera_status_t ACaptureSessionOutputContainer_create(
+        /*out*/ACaptureSessionOutputContainer** container);
+
+/**
+ * Free a capture session output container.
+ *
+ * @param container the {@link ACaptureSessionOutputContainer} to be freed.
+ *
+ * @see ACaptureSessionOutputContainer_create
+ */
+void            ACaptureSessionOutputContainer_free(ACaptureSessionOutputContainer* container);
+
+/**
+ * Create a ACaptureSessionOutput object.
+ *
+ * <p>The ACaptureSessionOutput is used in {@link ACaptureSessionOutputContainer_add} method to add
+ * an output {@link ANativeWindow} to ACaptureSessionOutputContainer. Use
+ * {@link ACaptureSessionOutput_free} to free the object and its memory after application no longer
+ * needs the {@link ACaptureSessionOutput}.</p>
+ *
+ * @param anw the {@link ANativeWindow} to be associated with the {@link ACaptureSessionOutput}
+ * @param output the output {@link ACaptureSessionOutput} will be stored here if the
+ *                  method call succeeds.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds. The created container will be
+ *                                filled in the output argument.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if anw or output is NULL.</li></ul>
+ *
+ * @see ACaptureSessionOutputContainer_add
+ */
+camera_status_t ACaptureSessionOutput_create(
+        ANativeWindow* anw, /*out*/ACaptureSessionOutput** output);
+
+/**
+ * Free a ACaptureSessionOutput object.
+ *
+ * @param output the {@link ACaptureSessionOutput} to be freed.
+ *
+ * @see ACaptureSessionOutput_create
+ */
+void            ACaptureSessionOutput_free(ACaptureSessionOutput* output);
+
+/**
+ * Add an {@link ACaptureSessionOutput} object to {@link ACaptureSessionOutputContainer}.
+ *
+ * @param container the {@link ACaptureSessionOutputContainer} of interest.
+ * @param output the output {@link ACaptureSessionOutput} to be added to container.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if container or output is NULL.</li></ul>
+ */
+camera_status_t ACaptureSessionOutputContainer_add(
+        ACaptureSessionOutputContainer* container, const ACaptureSessionOutput* output);
+
+/**
+ * Remove an {@link ACaptureSessionOutput} object from {@link ACaptureSessionOutputContainer}.
+ *
+ * <p>This method has no effect if the ACaptureSessionOutput does not exist in
+ * ACaptureSessionOutputContainer.</p>
+ *
+ * @param container the {@link ACaptureSessionOutputContainer} of interest.
+ * @param output the output {@link ACaptureSessionOutput} to be removed from container.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if container or output is NULL.</li></ul>
+ */
+camera_status_t ACaptureSessionOutputContainer_remove(
+        ACaptureSessionOutputContainer* container, const ACaptureSessionOutput* output);
+
+/**
+ * Create a new camera capture session by providing the target output set of {@link ANativeWindow}
+ * to the camera device.
+ *
+ * <p>If there is a preexisting session, the previous session will be closed
+ * automatically. However, app still needs to call {@link ACameraCaptureSession_close} on previous
+ * session. Otherwise the resources held by previous session will NOT be freed.</p>
+ *
+ * <p>The active capture session determines the set of potential output {@link ANativeWindow}s for
+ * the camera device for each capture request. A given request may use all
+ * or only some of the outputs. Once the ACameraCaptureSession is created, requests can be
+ * submitted with {@link ACameraCaptureSession_capture} or
+ * {@link ACameraCaptureSession_setRepeatingRequest}.</p>
+ *
+ * <p>Often the {@link ANativeWindow} used with this method can be obtained from a <a href=
+ * "http://developer.android.com/reference/android/view/Surface.html">Surface</a> java object by
+ * {@link ANativeWindow_fromSurface} NDK method. Surfaces or ANativeWindow suitable for inclusion as a camera
+ * output can be created for various use cases and targets:</p>
+ *
+ * <ul>
+ *
+ * <li>For drawing to a
+ *   <a href="http://developer.android.com/reference/android/view/SurfaceView.html">SurfaceView</a>:
+ *   Once the SurfaceView's Surface is created, set the size
+ *   of the Surface with
+ *   <a href="http://developer.android.com/reference/android/view/SurfaceHolder.html#setFixedSize(int, int)">
+ *    android.view.SurfaceHolder\#setFixedSize</a> to be one of the PRIVATE output sizes
+ *   returned by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}
+ *   and then obtain the Surface by calling <a href=
+ *   "http://developer.android.com/reference/android/view/SurfaceHolder.html#getSurface()">
+ *   android.view.SurfaceHolder\#getSurface</a>. If the size is not set by the application, it will
+ *   be rounded to the nearest supported size less than 1080p, by the camera device.</li>
+ *
+ * <li>For accessing through an OpenGL texture via a <a href=
+ *   "http://developer.android.com/reference/android/graphics/SurfaceTexture.html">SurfaceTexture</a>:
+ *   Set the size of the SurfaceTexture with <a href=
+ *   "http://developer.android.com/reference/android/graphics/SurfaceTexture.html#setDefaultBufferSize(int, int)">
+ *   setDefaultBufferSize</a> to be one of the PRIVATE output sizes
+ *   returned by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}
+ *   before creating a Surface from the SurfaceTexture with <a href=
+ *   "http://developer.android.com/reference/android/view/Surface.html#Surface(android.graphics.SurfaceTexture)">
+ *   Surface\#Surface(SurfaceTextrue)</a>. If the size is not set by the application, it will be set to be the
+ *   smallest supported size less than 1080p, by the camera device.</li>
+ *
+ * <li>For recording with <a href=
+ *     "http://developer.android.com/reference/android/media/MediaCodec.html">
+ *     MediaCodec</a>: Call
+ *   <a href=
+ *     "http://developer.android.com/reference/android/media/MediaCodec.html#createInputSurface()">
+ *     android.media.MediaCodec\#createInputSurface</a> after configuring
+ *   the media codec to use one of the PRIVATE output sizes
+ *   returned by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}.
+ *   </li>
+ *
+ * <li>For recording with <a href=
+ *    "http://developer.android.com/reference/android/media/MediaRecorder.html">
+ *    MediaRecorder</a>: Call
+ *   <a href="http://developer.android.com/reference/android/media/MediaRecorder.html#getSurface()">
+ *    android.media.MediaRecorder\#getSurface</a> after configuring the media recorder to use
+ *   one of the PRIVATE output sizes returned by
+ *   {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}, or configuring it to use one of the supported
+ *   <a href="http://developer.android.com/reference/android/media/CamcorderProfile.html">
+ *    CamcorderProfiles</a>.</li>
+ *
+ * <li>For efficient YUV processing with <a href=
+ *   "http://developer.android.com/reference/android/renderscript/package-summary.html">
+ *   RenderScript</a>:
+ *   Create a RenderScript
+ *   <a href="http://developer.android.com/reference/android/renderscript/Allocation.html">
+ *   Allocation</a> with a supported YUV
+ *   type, the IO_INPUT flag, and one of the YUV output sizes returned by
+ *   {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS},
+ *   Then obtain the Surface with
+ *   <a href="http://developer.android.com/reference/android/renderscript/Allocation.html#getSurface()">
+ *   Allocation#getSurface}</a>.</li>
+ *
+ * <li>For access to RAW, uncompressed YUV, or compressed JPEG data in the application: Create an
+ *   {@link AImageReader} object using the {@link AImageReader_new} method with one of the supported
+ *   output formats given by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}. Then obtain a
+ *   ANativeWindow from it with {@link AImageReader_getWindow}.
+ *   If the AImageReader size is not set to a supported size, it will be rounded to a supported
+ *   size less than 1080p by the camera device.
+ *   </li>
+ *
+ * </ul>
+ *
+ * <p>The camera device will query each ANativeWindow's size and formats upon this
+ * call, so they must be set to a valid setting at this time.</p>
+ *
+ * <p>It can take several hundred milliseconds for the session's configuration to complete,
+ * since camera hardware may need to be powered on or reconfigured.</p>
+ *
+ * <p>If a prior ACameraCaptureSession already exists when this method is called, the previous
+ * session will no longer be able to accept new capture requests and will be closed. Any
+ * in-progress capture requests made on the prior session will be completed before it's closed.
+ * To minimize the transition time,
+ * the ACameraCaptureSession_abortCaptures method can be used to discard the remaining
+ * requests for the prior capture session before a new one is created. Note that once the new
+ * session is created, the old one can no longer have its captures aborted.</p>
+ *
+ * <p>Using larger resolution outputs, or more outputs, can result in slower
+ * output rate from the device.</p>
+ *
+ * <p>Configuring a session with an empty list will close the current session, if
+ * any. This can be used to release the current session's target surfaces for another use.</p>
+ *
+ * <p>While any of the sizes from {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS} can be used when
+ * a single output stream is configured, a given camera device may not be able to support all
+ * combination of sizes, formats, and targets when multiple outputs are configured at once.  The
+ * tables below list the maximum guaranteed resolutions for combinations of streams and targets,
+ * given the capabilities of the camera device.</p>
+ *
+ * <p>If an application tries to create a session using a set of targets that exceed the limits
+ * described in the below tables, one of three possibilities may occur. First, the session may
+ * be successfully created and work normally. Second, the session may be successfully created,
+ * but the camera device won't meet the frame rate guarantees as described in
+ * {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}. Or third, if the output set
+ * cannot be used at all, session creation will fail entirely, with
+ * {@link ACAMERA_ERROR_STREAM_CONFIGURE_FAIL} being returned.</p>
+ *
+ * <p>For the type column `PRIV` refers to output format {@link AIMAGE_FORMAT_PRIVATE},
+ * `YUV` refers to output format {@link AIMAGE_FORMAT_YUV_420_888},
+ * `JPEG` refers to output format {@link AIMAGE_FORMAT_JPEG},
+ * and `RAW` refers to output format {@link AIMAGE_FORMAT_RAW16}
+ *
+ *
+ * <p>For the maximum size column, `PREVIEW` refers to the best size match to the
+ * device's screen resolution, or to 1080p `(1920x1080)`, whichever is
+ * smaller. `RECORD` refers to the camera device's maximum supported recording resolution,
+ * as determined by <a href="http://developer.android.com/reference/android/media/CamcorderProfile.html">
+ * android.media.CamcorderProfiles</a>. And `MAXIMUM` refers to the
+ * camera device's maximum output resolution for that format or target from
+ * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}.</p>
+ *
+ * <p>To use these tables, determine the number and the formats/targets of outputs needed, and
+ * find the row(s) of the table with those targets. The sizes indicate the maximum set of sizes
+ * that can be used; it is guaranteed that for those targets, the listed sizes and anything
+ * smaller from the list given by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS} can be
+ * successfully used to create a session.  For example, if a row indicates that a 8 megapixel
+ * (MP) YUV_420_888 output can be used together with a 2 MP `PRIV` output, then a session
+ * can be created with targets `[8 MP YUV, 2 MP PRIV]` or targets `[2 MP YUV, 2 MP PRIV]`;
+ * but a session with targets `[8 MP YUV, 4 MP PRIV]`, targets `[4 MP YUV, 4 MP PRIV]`,
+ * or targets `[8 MP PRIV, 2 MP YUV]` would not be guaranteed to work, unless
+ * some other row of the table lists such a combination.</p>
+ *
+ * <p>Legacy devices ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
+ * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY LEGACY}) support at
+ * least the following stream combinations:
+ *
+ * <table>
+ * <tr><th colspan="7">LEGACY-level guaranteed configurations</th></tr>
+ * <tr> <th colspan="2" id="rb">Target 1</th> <th colspan="2" id="rb">Target 2</th>  <th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr> <th>Type</th><th id="rb">Max size</th> <th>Type</th><th id="rb">Max size</th> <th>Type</th><th id="rb">Max size</th></tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>Simple preview, GPU video processing, or no-preview video recording.</td> </tr>
+ * <tr> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>No-viewfinder still image capture.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>In-application video/image processing.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Standard still imaging.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>In-app processing plus still capture.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td colspan="2" id="rb"></td> <td>Standard recording.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td colspan="2" id="rb"></td> <td>Preview plus in-app processing.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>Still capture plus in-app processing.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>Limited-level ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
+ * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED}) devices
+ * support at least the following stream combinations in addition to those for
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY LEGACY} devices:
+ *
+ * <table>
+ * <tr><th colspan="7">LIMITED-level additional guaranteed configurations</th></tr>
+ * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th></tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`RECORD `</td> <td colspan="2" id="rb"></td> <td>High-resolution video recording with preview.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`RECORD `</td> <td colspan="2" id="rb"></td> <td>High-resolution in-app video processing with preview.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`RECORD `</td> <td colspan="2" id="rb"></td> <td>Two-input in-app video processing.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`RECORD `</td> <td>`JPEG`</td><td id="rb">`RECORD `</td> <td>High-resolution recording with video snapshot.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`RECORD `</td> <td>`JPEG`</td><td id="rb">`RECORD `</td> <td>High-resolution in-app processing with video snapshot.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>Two-input in-app processing with still capture.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>FULL-level ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
+ * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL FULL}) devices
+ * support at least the following stream combinations in addition to those for
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED} devices:
+ *
+ * <table>
+ * <tr><th colspan="7">FULL-level additional guaranteed configurations</th></tr>
+ * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Maximum-resolution GPU processing with preview.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Maximum-resolution in-app processing with preview.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Maximum-resolution two-input in-app processsing.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>Video recording with maximum-size video snapshot</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`640x480`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Standard video recording plus maximum-resolution in-app processing.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`640x480`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Preview plus two-input maximum-resolution in-app processing.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>RAW-capability ({@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES} includes
+ * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_RAW RAW}) devices additionally support
+ * at least the following stream combinations on both
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL FULL} and
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED} devices:
+ *
+ * <table>
+ * <tr><th colspan="7">RAW-capability additional guaranteed configurations</th></tr>
+ * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
+ * <tr> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>No-preview DNG capture.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Standard DNG capture.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>In-app processing plus DNG capture.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Video recording with DNG capture.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Preview with in-app processing and DNG capture.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Two-input in-app processing plus DNG capture.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Still capture with simultaneous JPEG and DNG.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>In-app processing with simultaneous JPEG and DNG.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>BURST-capability ({@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES} includes
+ * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE BURST_CAPTURE}) devices
+ * support at least the below stream combinations in addition to those for
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED} devices. Note that all
+ * FULL-level devices support the BURST capability, and the below list is a strict subset of the
+ * list for FULL-level devices, so this table is only relevant for LIMITED-level devices that
+ * support the BURST_CAPTURE capability.
+ *
+ * <table>
+ * <tr><th colspan="5">BURST-capability additional guaranteed configurations</th></tr>
+ * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`MAXIMUM`</td> <td>Maximum-resolution GPU processing with preview.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Maximum-resolution in-app processing with preview.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Maximum-resolution two-input in-app processsing.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>LEVEL-3 ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
+ * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_3 LEVEL_3})
+ * support at least the following stream combinations in addition to the combinations for
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL FULL} and for
+ * RAW capability ({@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES} includes
+ * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_RAW RAW}):
+ *
+ * <table>
+ * <tr><th colspan="11">LEVEL-3 additional guaranteed configurations</th></tr>
+ * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th><th colspan="2" id="rb">Target 4</th><th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`640x480`</td> <td>`YUV`</td><td id="rb">`MAXIMUM`</td> <td>`RAW`</td><td id="rb">`MAXIMUM`</td> <td>In-app viewfinder analysis with dynamic selection of output format.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`640x480`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>`RAW`</td><td id="rb">`MAXIMUM`</td> <td>In-app viewfinder analysis with dynamic selection of output format.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>Since the capabilities of camera devices vary greatly, a given camera device may support
+ * target combinations with sizes outside of these guarantees, but this can only be tested for
+ * by attempting to create a session with such targets.</p>
+ *
+ * @param device the camera device of interest.
+ * @param outputs the {@link ACaptureSessionOutputContainer} describes all output streams.
+ * @param callbacks the {@link ACameraCaptureSession_stateCallbacks capture session state callbacks}.
+ * @param session the created {@link ACameraCaptureSession} will be filled here if the method call
+ *        succeeds.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds. The created capture session will be
+ *                                filled in session argument.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if any of device, outputs, callbacks or
+ *                                session is NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error.</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ */
+camera_status_t ACameraDevice_createCaptureSession(
+        ACameraDevice* device,
+        const ACaptureSessionOutputContainer*       outputs,
+        const ACameraCaptureSession_stateCallbacks* callbacks,
+        /*out*/ACameraCaptureSession** session);
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_DEVICE_H */
+
+/** @} */
+
diff --git a/camera/include/camera/ndk/NdkCameraError.h b/camera/include/camera/ndk/NdkCameraError.h
new file mode 100644
index 0000000..6b58155
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraError.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraError.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#ifndef _NDK_CAMERA_ERROR_H
+#define _NDK_CAMERA_ERROR_H
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+typedef enum {
+    ACAMERA_OK = 0,
+
+    ACAMERA_ERROR_BASE                  = -10000,
+
+    /**
+     * Camera operation has failed due to an unspecified cause.
+     */
+    ACAMERA_ERROR_UNKNOWN               = ACAMERA_ERROR_BASE,
+
+    /**
+     * Camera operation has failed due to an invalid parameter being passed to the method.
+     */
+    ACAMERA_ERROR_INVALID_PARAMETER     = ACAMERA_ERROR_BASE - 1,
+
+    /**
+     * Camera operation has failed because the camera device has been closed, possibly because a
+     * higher-priority client has taken ownership of the camera device.
+     */
+    ACAMERA_ERROR_CAMERA_DISCONNECTED   = ACAMERA_ERROR_BASE - 2,
+
+    /**
+     * Camera operation has failed due to insufficient memory.
+     */
+    ACAMERA_ERROR_NOT_ENOUGH_MEMORY     = ACAMERA_ERROR_BASE - 3,
+
+    /**
+     * Camera operation has failed due to the requested metadata tag cannot be found in input
+     * {@link ACameraMetadata} or {@link ACaptureRequest}.
+     */
+    ACAMERA_ERROR_METADATA_NOT_FOUND    = ACAMERA_ERROR_BASE - 4,
+
+    /**
+     * Camera operation has failed and the camera device has encountered a fatal error and needs to
+     * be re-opened before it can be used again.
+     */
+    ACAMERA_ERROR_CAMERA_DEVICE         = ACAMERA_ERROR_BASE - 5,
+
+    /**
+     * Camera operation has failed and the camera service has encountered a fatal error.
+     *
+     * <p>The Android device may need to be shut down and restarted to restore
+     * camera function, or there may be a persistent hardware problem.</p>
+     *
+     * <p>An attempt at recovery may be possible by closing the
+     * ACameraDevice and the ACameraManager, and trying to acquire all resources
+     * again from scratch.</p>
+     */
+    ACAMERA_ERROR_CAMERA_SERVICE        = ACAMERA_ERROR_BASE - 6,
+
+    /**
+     * The {@link ACameraCaptureSession} has been closed and cannnot perform any operation other
+     * than {@link ACameraCaptureSession_close}.
+     */
+    ACAMERA_ERROR_SESSION_CLOSED        = ACAMERA_ERROR_BASE - 7,
+
+    /**
+     * Camera operation has failed due to an invalid internal operation. Usually this is due to a
+     * low-level problem that may resolve itself on retry
+     */
+    ACAMERA_ERROR_INVALID_OPERATION     = ACAMERA_ERROR_BASE - 8,
+
+    /**
+     * Camera device does not support the stream configuration provided by application in
+     * {@link ACameraDevice_createCaptureSession}.
+     */
+    ACAMERA_ERROR_STREAM_CONFIGURE_FAIL = ACAMERA_ERROR_BASE - 9,
+
+    /**
+     * Camera device is being used by another higher priority camera API client.
+     */
+    ACAMERA_ERROR_CAMERA_IN_USE         = ACAMERA_ERROR_BASE - 10,
+
+    /**
+     * The system-wide limit for number of open cameras or camera resources has been reached, and
+     * more camera devices cannot be opened until previous instances are closed.
+     */
+    ACAMERA_ERROR_MAX_CAMERA_IN_USE     = ACAMERA_ERROR_BASE - 11,
+
+    /**
+     * The camera is disabled due to a device policy, and cannot be opened.
+     */
+    ACAMERA_ERROR_CAMERA_DISABLED       = ACAMERA_ERROR_BASE - 12,
+
+    /**
+     * The application does not have permission to open camera.
+     */
+    ACAMERA_ERROR_PERMISSION_DENIED     = ACAMERA_ERROR_BASE - 13,
+} camera_status_t;
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_ERROR_H */
+
+/** @} */
diff --git a/camera/include/camera/ndk/NdkCameraManager.h b/camera/include/camera/ndk/NdkCameraManager.h
new file mode 100644
index 0000000..5b5c98b
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraManager.h
@@ -0,0 +1,282 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraManager.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#ifndef _NDK_CAMERA_MANAGER_H
+#define _NDK_CAMERA_MANAGER_H
+
+#include <sys/cdefs.h>
+
+#include "NdkCameraError.h"
+#include "NdkCameraMetadata.h"
+#include "NdkCameraDevice.h"
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+/**
+ * ACameraManager is opaque type that provides access to camera service.
+ *
+ * A pointer can be obtained using {@link ACameraManager_create} method.
+ */
+typedef struct ACameraManager ACameraManager;
+
+/**
+ * Create ACameraManager instance.
+ *
+ * <p>The ACameraManager is responsible for
+ * detecting, characterizing, and connecting to {@link ACameraDevice}s.</p>
+ *
+ * <p>The caller must call {@link ACameraManager_delete} to free the resources once it is done
+ * using the ACameraManager instance.</p>
+ *
+ * @return a {@link ACameraManager} instance.
+ *
+ */
+ACameraManager* ACameraManager_create();
+
+/**
+ * <p>Delete the {@link ACameraManager} instance and free its resources. </p>
+ *
+ * @param manager the {@link ACameraManager} instance to be deleted.
+ */
+void ACameraManager_delete(ACameraManager* manager);
+
+/// Struct to hold list of camera devices
+typedef struct ACameraIdList {
+    int numCameras;          ///< Number of connected camera devices
+    const char** cameraIds;  ///< list of identifier of connected camera devices
+} ACameraIdList;
+
+/**
+ * Create a list of currently connected camera devices, including
+ * cameras that may be in use by other camera API clients.
+ *
+ * <p>Non-removable cameras use integers starting at 0 for their
+ * identifiers, while removable cameras have a unique identifier for each
+ * individual device, even if they are the same model.</p>
+ *
+ * <p>ACameraManager_getCameraIdList will allocate and return an {@link ACameraIdList}.
+ * The caller must call {@link ACameraManager_deleteCameraIdList} to free the memory</p>
+ *
+ * @param manager the {@link ACameraManager} of interest
+ * @param cameraIdList the output {@link ACameraIdList} will be filled in here if the method call
+ *        succeeds.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager or cameraIdList is NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if connection to camera service fails.</li>
+ *         <li>{@link ACAMERA_ERROR_NOT_ENOUGH_MEMORY} if allocating memory fails.</li></ul>
+ */
+camera_status_t ACameraManager_getCameraIdList(ACameraManager* manager,
+                                              /*out*/ACameraIdList** cameraIdList);
+
+/**
+ * Delete a list of camera devices allocated via {@link ACameraManager_getCameraIdList}.
+ *
+ * @param cameraIdList the {@link ACameraIdList} to be deleted.
+ */
+void ACameraManager_deleteCameraIdList(ACameraIdList* cameraIdList);
+
+/**
+ * Definition of camera availability callbacks.
+ *
+ * @param context The optional application context provided by user in
+ *                {@link ACameraManager_AvailabilityCallbacks}.
+ * @param cameraId The ID of the camera device whose availability is changing. The memory of this
+ *                 argument is owned by camera framework and will become invalid immediately after
+ *                 this callback returns.
+ */
+typedef void (*ACameraManager_AvailabilityCallback)(void* context, const char* cameraId);
+
+/**
+ * A listener for camera devices becoming available or unavailable to open.
+ *
+ * <p>Cameras become available when they are no longer in use, or when a new
+ * removable camera is connected. They become unavailable when some
+ * application or service starts using a camera, or when a removable camera
+ * is disconnected.</p>
+ *
+ * @see ACameraManager_registerAvailabilityCallback
+ */
+typedef struct ACameraManager_AvailabilityListener {
+    /// Optional application context.
+    void*                               context;
+    /// Called when a camera becomes available
+    ACameraManager_AvailabilityCallback onCameraAvailable;
+    /// Called when a camera becomes unavailable
+    ACameraManager_AvailabilityCallback onCameraUnavailable;
+} ACameraManager_AvailabilityCallbacks;
+
+/**
+ * Register camera availability callbacks.
+ *
+ * <p>onCameraUnavailable will be called whenever a camera device is opened by any camera API client.
+ * Other camera API clients may still be able to open such a camera device, evicting the existing
+ * client if they have higher priority than the existing client of a camera device.
+ * See {@link ACameraManager_openCamera} for more details.</p>
+ *
+ * <p>The callbacks will be called on a dedicated thread shared among all ACameraManager
+ * instances.</p>
+ *
+ * <p>Since this callback will be registered with the camera service, remember to unregister it
+ * once it is no longer needed; otherwise the callback will continue to receive events
+ * indefinitely and it may prevent other resources from being released. Specifically, the
+ * callbacks will be invoked independently of the general activity lifecycle and independently
+ * of the state of individual ACameraManager instances.</p>
+ *
+ * @param manager the {@link ACameraManager} of interest.
+ * @param callback the {@link ACameraManager_AvailabilityCallbacks} to be registered.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager or callback is NULL, or
+ *                  {ACameraManager_AvailabilityCallbacks#onCameraAvailable} or
+ *                  {ACameraManager_AvailabilityCallbacks#onCameraUnavailable} is NULL.</li></ul>
+ */
+camera_status_t ACameraManager_registerAvailabilityCallback(
+        ACameraManager* manager, const ACameraManager_AvailabilityCallbacks* callback);
+
+/**
+ * Unregister camera availability callbacks.
+ *
+ * <p>Removing a callback that isn't registered has no effect.</p>
+ *
+ * @param manager the {@link ACameraManager} of interest.
+ * @param callback the {@link ACameraManager_AvailabilityCallbacks} to be unregistered.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if callback,
+ *                  {ACameraManager_AvailabilityCallbacks#onCameraAvailable} or
+ *                  {ACameraManager_AvailabilityCallbacks#onCameraUnavailable} is NULL.</li></ul>
+ */
+camera_status_t ACameraManager_unregisterAvailabilityCallback(
+        ACameraManager* manager, const ACameraManager_AvailabilityCallbacks* callback);
+
+/**
+ * Query the capabilities of a camera device. These capabilities are
+ * immutable for a given camera.
+ *
+ * <p>See {@link ACameraMetadata} document and {@link NdkCameraMetadataTags.h} for more details.</p>
+ *
+ * <p>The caller must call {@link ACameraMetadata_free} to free the memory of the output
+ * characteristics.</p>
+ *
+ * @param manager the {@link ACameraManager} of interest.
+ * @param cameraId the ID string of the camera device of interest.
+ * @param characteristics the output {@link ACameraMetadata} will be filled here if the method call
+ *        succeeeds.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager, cameraId, or characteristics
+ *                  is NULL, or cameraId does not match any camera devices connected.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if connection to camera service fails.</li>
+ *         <li>{@link ACAMERA_ERROR_NOT_ENOUGH_MEMORY} if allocating memory fails.</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ */
+camera_status_t ACameraManager_getCameraCharacteristics(
+        ACameraManager* manager, const char* cameraId,
+        /*out*/ACameraMetadata** characteristics);
+
+/**
+ * Open a connection to a camera with the given ID. The opened camera device will be
+ * returned in the `device` parameter.
+ *
+ * <p>Use {@link ACameraManager_getCameraIdList} to get the list of available camera
+ * devices. Note that even if an id is listed, open may fail if the device
+ * is disconnected between the calls to {@link ACameraManager_getCameraIdList} and
+ * {@link ACameraManager_openCamera}, or if a higher-priority camera API client begins using the
+ * camera device.</p>
+ *
+ * <p>Devices for which the
+ * {@link ACameraManager_AvailabilityCallbacks#onCameraUnavailable} callback has been called due to
+ * the device being in use by a lower-priority, background camera API client can still potentially
+ * be opened by calling this method when the calling camera API client has a higher priority
+ * than the current camera API client using this device.  In general, if the top, foreground
+ * activity is running within your application process, your process will be given the highest
+ * priority when accessing the camera, and this method will succeed even if the camera device is
+ * in use by another camera API client. Any lower-priority application that loses control of the
+ * camera in this way will receive an
+ * {@link ACameraDevice_stateCallbacks#onDisconnected} callback.</p>
+ *
+ * <p>Once the camera is successfully opened,the ACameraDevice can then be set up
+ * for operation by calling {@link ACameraDevice_createCaptureSession} and
+ * {@link ACameraDevice_createCaptureRequest}.</p>
+ *
+ * <p>If the camera becomes disconnected after this function call returns,
+ * {@link ACameraDevice_stateCallbacks#onDisconnected} with a
+ * ACameraDevice in the disconnected state will be called.</p>
+ *
+ * <p>If the camera runs into error after this function call returns,
+ * {@link ACameraDevice_stateCallbacks#onError} with a
+ * ACameraDevice in the error state will be called.</p>
+ *
+ * @param manager the {@link ACameraManager} of interest.
+ * @param cameraId the ID string of the camera device to be opened.
+ * @param callback the {@link ACameraDevice_StateCallbacks} associated with the opened camera device.
+ * @param device the opened {@link ACameraDevice} will be filled here if the method call succeeds.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager, cameraId, callback, or device
+ *                  is NULL, or cameraId does not match any camera devices connected.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if connection to camera service fails.</li>
+ *         <li>{@link ACAMERA_ERROR_NOT_ENOUGH_MEMORY} if allocating memory fails.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_IN_USE} if camera device is being used by a higher
+ *                   priority camera API client.</li>
+ *         <li>{@link ACAMERA_ERROR_MAX_CAMERA_IN_USE} if the system-wide limit for number of open
+ *                   cameras or camera resources has been reached, and more camera devices cannot be
+ *                   opened until previous instances are closed.</li>
+ *         <li>{@link ACAMERA_ERROR_CAMERA_DISABLED} if the camera is disabled due to a device
+ *                   policy, and cannot be opened.</li>
+ *         <li>{@link ACAMERA_ERROR_PERMISSION_DENIED} if the application does not have permission
+ *                   to open camera.</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ */
+camera_status_t ACameraManager_openCamera(
+        ACameraManager* manager, const char* cameraId,
+        ACameraDevice_StateCallbacks* callback,
+        /*out*/ACameraDevice** device);
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_MANAGER_H */
+
+/** @} */
diff --git a/camera/include/camera/ndk/NdkCameraMetadata.h b/camera/include/camera/ndk/NdkCameraMetadata.h
new file mode 100644
index 0000000..f2aec98
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraMetadata.h
@@ -0,0 +1,237 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraMetadata.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#ifndef _NDK_CAMERA_METADATA_H
+#define _NDK_CAMERA_METADATA_H
+
+#include <sys/cdefs.h>
+
+#include "NdkCameraError.h"
+#include "NdkCameraMetadataTags.h"
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+/**
+ * ACameraMetadata is opaque type that provides access to read-only camera metadata like camera
+ * characteristics (via {@link ACameraManager_getCameraCharacteristics}) or capture results (via
+ * {@link ACameraCaptureSession_captureCallback_result}).
+ */
+typedef struct ACameraMetadata ACameraMetadata;
+
+/**
+ * Possible data types of a metadata entry.
+ *
+ * Keep in sync with system/media/include/system/camera_metadata.h
+ */
+enum {
+    /// Unsigned 8-bit integer (uint8_t)
+    ACAMERA_TYPE_BYTE = 0,
+    /// Signed 32-bit integer (int32_t)
+    ACAMERA_TYPE_INT32 = 1,
+    /// 32-bit float (float)
+    ACAMERA_TYPE_FLOAT = 2,
+    /// Signed 64-bit integer (int64_t)
+    ACAMERA_TYPE_INT64 = 3,
+    /// 64-bit float (double)
+    ACAMERA_TYPE_DOUBLE = 4,
+    /// A 64-bit fraction (ACameraMetadata_rational)
+    ACAMERA_TYPE_RATIONAL = 5,
+    /// Number of type fields
+    ACAMERA_NUM_TYPES
+};
+
+/**
+ * Definition of rational data type in {@link ACameraMetadata}.
+ */
+typedef struct ACameraMetadata_rational {
+    int32_t numerator;
+    int32_t denominator;
+} ACameraMetadata_rational;
+
+/**
+ * A single camera metadata entry.
+ *
+ * <p>Each entry is an array of values, though many metadata fields may only have 1 entry in the
+ * array.</p>
+ */
+typedef struct ACameraMetadata_entry {
+    /**
+     * The tag identifying the entry.
+     *
+     * <p> It is one of the values defined in {@link NdkCameraMetadataTags.h}, and defines how the
+     * entry should be interpreted and which parts of the API provide it.
+     * See {@link NdkCameraMetadataTags.h} for more details. </p>
+     */
+    uint32_t tag;
+
+    /**
+     * The data type of this metadata entry.
+     *
+     * <p>Must be one of ACAMERA_TYPE_* enum values defined above. A particular tag always has the
+     * same type.</p>
+     */
+    uint8_t  type;
+
+    /**
+     * Count of elements (NOT count of bytes) in this metadata entry.
+     */
+    uint32_t count;
+
+    /**
+     * Pointer to the data held in this metadata entry.
+     *
+     * <p>The type field above defines which union member pointer is valid. The count field above
+     * defines the length of the data in number of elements.</p>
+     */
+    union {
+        uint8_t *u8;
+        int32_t *i32;
+        float   *f;
+        int64_t *i64;
+        double  *d;
+        ACameraMetadata_rational* r;
+    } data;
+} ACameraMetadata_entry;
+
+/**
+ * A single read-only camera metadata entry.
+ *
+ * <p>Each entry is an array of values, though many metadata fields may only have 1 entry in the
+ * array.</p>
+ */
+typedef struct ACameraMetadata_const_entry {
+    /**
+     * The tag identifying the entry.
+     *
+     * <p> It is one of the values defined in {@link NdkCameraMetadataTags.h}, and defines how the
+     * entry should be interpreted and which parts of the API provide it.
+     * See {@link NdkCameraMetadataTags.h} for more details. </p>
+     */
+    uint32_t tag;
+
+    /**
+     * The data type of this metadata entry.
+     *
+     * <p>Must be one of ACAMERA_TYPE_* enum values defined above. A particular tag always has the
+     * same type.</p>
+     */
+    uint8_t  type;
+
+    /**
+     * Count of elements (NOT count of bytes) in this metadata entry.
+     */
+    uint32_t count;
+
+    /**
+     * Pointer to the data held in this metadata entry.
+     *
+     * <p>The type field above defines which union member pointer is valid. The count field above
+     * defines the length of the data in number of elements.</p>
+     */
+    union {
+        const uint8_t *u8;
+        const int32_t *i32;
+        const float   *f;
+        const int64_t *i64;
+        const double  *d;
+        const ACameraMetadata_rational* r;
+    } data;
+} ACameraMetadata_const_entry;
+
+/**
+ * Get a metadata entry from an input {@link ACameraMetadata}.
+ *
+ * <p>The memory of the data field in the returned entry is managed by camera framework. Do not
+ * attempt to free it.</p>
+ *
+ * @param metadata the {@link ACameraMetadata} of interest.
+ * @param tag the tag value of the camera metadata entry to be get.
+ * @param entry the output {@link ACameraMetadata_const_entry} will be filled here if the method
+ *        call succeeeds.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if metadata or entry is NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_METADATA_NOT_FOUND} if input metadata does not contain an entry
+ *             of input tag value.</li></ul>
+ */
+camera_status_t ACameraMetadata_getConstEntry(
+        const ACameraMetadata* metadata, uint32_t tag, /*out*/ACameraMetadata_const_entry* entry);
+
+/**
+ * List all the entry tags in input {@link ACameraMetadata}.
+ *
+ * @param metadata the {@link ACameraMetadata} of interest.
+ * @param numEntries number of metadata entries in input {@link ACameraMetadata}
+ * @param tags the tag values of the metadata entries. Length of tags is returned in numEntries
+ *             argument. The memory is managed by ACameraMetadata itself and must NOT be free/delete
+ *             by application. Do NOT access tags after calling ACameraMetadata_free.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if metadata, numEntries or tags is NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ */
+camera_status_t ACameraMetadata_getAllTags(
+        const ACameraMetadata* metadata, /*out*/int32_t* numEntries, /*out*/const uint32_t** tags);
+
+/**
+ * Create a copy of input {@link ACameraMetadata}.
+ *
+ * <p>The returned ACameraMetadata must be freed by the application by {@link ACameraMetadata_free}
+ * after application is done using it.</p>
+ *
+ * @param src the input {@link ACameraMetadata} to be copied.
+ *
+ * @return a valid ACameraMetadata pointer or NULL if the input metadata cannot be copied.
+ */
+ACameraMetadata* ACameraMetadata_copy(const ACameraMetadata* src);
+
+/**
+ * Free a {@link ACameraMetadata} structure.
+ *
+ * @param metadata the {@link ACameraMetadata} to be freed.
+ */
+void ACameraMetadata_free(ACameraMetadata* metadata);
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_METADATA_H */
+
+/** @} */
diff --git a/camera/include/camera/ndk/NdkCameraMetadataTags.h b/camera/include/camera/ndk/NdkCameraMetadataTags.h
new file mode 100644
index 0000000..629d75a
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraMetadataTags.h
@@ -0,0 +1,7290 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraMetadataTags.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#ifndef _NDK_CAMERA_METADATA_TAGS_H
+#define _NDK_CAMERA_METADATA_TAGS_H
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+typedef enum acamera_metadata_section {
+    ACAMERA_COLOR_CORRECTION,
+    ACAMERA_CONTROL,
+    ACAMERA_DEMOSAIC,
+    ACAMERA_EDGE,
+    ACAMERA_FLASH,
+    ACAMERA_FLASH_INFO,
+    ACAMERA_HOT_PIXEL,
+    ACAMERA_JPEG,
+    ACAMERA_LENS,
+    ACAMERA_LENS_INFO,
+    ACAMERA_NOISE_REDUCTION,
+    ACAMERA_QUIRKS,
+    ACAMERA_REQUEST,
+    ACAMERA_SCALER,
+    ACAMERA_SENSOR,
+    ACAMERA_SENSOR_INFO,
+    ACAMERA_SHADING,
+    ACAMERA_STATISTICS,
+    ACAMERA_STATISTICS_INFO,
+    ACAMERA_TONEMAP,
+    ACAMERA_LED,
+    ACAMERA_INFO,
+    ACAMERA_BLACK_LEVEL,
+    ACAMERA_SYNC,
+    ACAMERA_REPROCESS,
+    ACAMERA_DEPTH,
+    ACAMERA_SECTION_COUNT,
+
+    ACAMERA_VENDOR = 0x8000
+} acamera_metadata_section_t;
+
+/**
+ * Hierarchy positions in enum space.
+ */
+typedef enum acamera_metadata_section_start {
+    ACAMERA_COLOR_CORRECTION_START = ACAMERA_COLOR_CORRECTION  << 16,
+    ACAMERA_CONTROL_START          = ACAMERA_CONTROL           << 16,
+    ACAMERA_DEMOSAIC_START         = ACAMERA_DEMOSAIC          << 16,
+    ACAMERA_EDGE_START             = ACAMERA_EDGE              << 16,
+    ACAMERA_FLASH_START            = ACAMERA_FLASH             << 16,
+    ACAMERA_FLASH_INFO_START       = ACAMERA_FLASH_INFO        << 16,
+    ACAMERA_HOT_PIXEL_START        = ACAMERA_HOT_PIXEL         << 16,
+    ACAMERA_JPEG_START             = ACAMERA_JPEG              << 16,
+    ACAMERA_LENS_START             = ACAMERA_LENS              << 16,
+    ACAMERA_LENS_INFO_START        = ACAMERA_LENS_INFO         << 16,
+    ACAMERA_NOISE_REDUCTION_START  = ACAMERA_NOISE_REDUCTION   << 16,
+    ACAMERA_QUIRKS_START           = ACAMERA_QUIRKS            << 16,
+    ACAMERA_REQUEST_START          = ACAMERA_REQUEST           << 16,
+    ACAMERA_SCALER_START           = ACAMERA_SCALER            << 16,
+    ACAMERA_SENSOR_START           = ACAMERA_SENSOR            << 16,
+    ACAMERA_SENSOR_INFO_START      = ACAMERA_SENSOR_INFO       << 16,
+    ACAMERA_SHADING_START          = ACAMERA_SHADING           << 16,
+    ACAMERA_STATISTICS_START       = ACAMERA_STATISTICS        << 16,
+    ACAMERA_STATISTICS_INFO_START  = ACAMERA_STATISTICS_INFO   << 16,
+    ACAMERA_TONEMAP_START          = ACAMERA_TONEMAP           << 16,
+    ACAMERA_LED_START              = ACAMERA_LED               << 16,
+    ACAMERA_INFO_START             = ACAMERA_INFO              << 16,
+    ACAMERA_BLACK_LEVEL_START      = ACAMERA_BLACK_LEVEL       << 16,
+    ACAMERA_SYNC_START             = ACAMERA_SYNC              << 16,
+    ACAMERA_REPROCESS_START        = ACAMERA_REPROCESS         << 16,
+    ACAMERA_DEPTH_START            = ACAMERA_DEPTH             << 16,
+    ACAMERA_VENDOR_START           = ACAMERA_VENDOR            << 16
+} acamera_metadata_section_start_t;
+
+/**
+ * Main enum for camera metadata tags.
+ */
+typedef enum acamera_metadata_tag {
+    /**
+     * <p>The mode control selects how the image data is converted from the
+     * sensor's native color into linear sRGB color.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_color_correction_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>When auto-white balance (AWB) is enabled with ACAMERA_CONTROL_AWB_MODE, this
+     * control is overridden by the AWB routine. When AWB is disabled, the
+     * application controls how the color mapping is performed.</p>
+     * <p>We define the expected processing pipeline below. For consistency
+     * across devices, this is always the case with TRANSFORM_MATRIX.</p>
+     * <p>When either FULL or HIGH_QUALITY is used, the camera device may
+     * do additional processing but ACAMERA_COLOR_CORRECTION_GAINS and
+     * ACAMERA_COLOR_CORRECTION_TRANSFORM will still be provided by the
+     * camera device (in the results) and be roughly correct.</p>
+     * <p>Switching to TRANSFORM_MATRIX and using the data provided from
+     * FAST or HIGH_QUALITY will yield a picture with the same white point
+     * as what was produced by the camera device in the earlier frame.</p>
+     * <p>The expected processing pipeline is as follows:</p>
+     * <p><img alt="White balance processing pipeline" src="../images/camera2/metadata/android.colorCorrection.mode/processing_pipeline.png" /></p>
+     * <p>The white balance is encoded by two values, a 4-channel white-balance
+     * gain vector (applied in the Bayer domain), and a 3x3 color transform
+     * matrix (applied after demosaic).</p>
+     * <p>The 4-channel white-balance gains are defined as:</p>
+     * <pre><code>ACAMERA_COLOR_CORRECTION_GAINS = [ R G_even G_odd B ]
+     * </code></pre>
+     * <p>where <code>G_even</code> is the gain for green pixels on even rows of the
+     * output, and <code>G_odd</code> is the gain for green pixels on the odd rows.
+     * These may be identical for a given camera device implementation; if
+     * the camera device does not support a separate gain for even/odd green
+     * channels, it will use the <code>G_even</code> value, and write <code>G_odd</code> equal to
+     * <code>G_even</code> in the output result metadata.</p>
+     * <p>The matrices for color transforms are defined as a 9-entry vector:</p>
+     * <pre><code>ACAMERA_COLOR_CORRECTION_TRANSFORM = [ I0 I1 I2 I3 I4 I5 I6 I7 I8 ]
+     * </code></pre>
+     * <p>which define a transform from input sensor colors, <code>P_in = [ r g b ]</code>,
+     * to output linear sRGB, <code>P_out = [ r' g' b' ]</code>,</p>
+     * <p>with colors as follows:</p>
+     * <pre><code>r' = I0r + I1g + I2b
+     * g' = I3r + I4g + I5b
+     * b' = I6r + I7g + I8b
+     * </code></pre>
+     * <p>Both the input and output value ranges must match. Overflow/underflow
+     * values are clipped to fit within the range.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_MODE =                             // byte (acamera_metadata_enum_android_color_correction_mode_t)
+            ACAMERA_COLOR_CORRECTION_START,
+    /**
+     * <p>A color transform matrix to use to transform
+     * from sensor RGB color space to output linear sRGB color space.</p>
+     *
+     * <p>Type: rational[3*3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>This matrix is either set by the camera device when the request
+     * ACAMERA_COLOR_CORRECTION_MODE is not TRANSFORM_MATRIX, or
+     * directly by the application in the request when the
+     * ACAMERA_COLOR_CORRECTION_MODE is TRANSFORM_MATRIX.</p>
+     * <p>In the latter case, the camera device may round the matrix to account
+     * for precision issues; the final rounded matrix should be reported back
+     * in this matrix result metadata. The transform should keep the magnitude
+     * of the output color values within <code>[0, 1.0]</code> (assuming input color
+     * values is within the normalized range <code>[0, 1.0]</code>), or clipping may occur.</p>
+     * <p>The valid range of each matrix element varies on different devices, but
+     * values within [-1.5, 3.0] are guaranteed not to be clipped.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_TRANSFORM =                        // rational[3*3]
+            ACAMERA_COLOR_CORRECTION_START + 1,
+    /**
+     * <p>Gains applying to Bayer raw color channels for
+     * white-balance.</p>
+     *
+     * <p>Type: float[4]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>These per-channel gains are either set by the camera device
+     * when the request ACAMERA_COLOR_CORRECTION_MODE is not
+     * TRANSFORM_MATRIX, or directly by the application in the
+     * request when the ACAMERA_COLOR_CORRECTION_MODE is
+     * TRANSFORM_MATRIX.</p>
+     * <p>The gains in the result metadata are the gains actually
+     * applied by the camera device to the current frame.</p>
+     * <p>The valid range of gains varies on different devices, but gains
+     * between [1.0, 3.0] are guaranteed not to be clipped. Even if a given
+     * device allows gains below 1.0, this is usually not recommended because
+     * this can create color artifacts.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_GAINS =                            // float[4]
+            ACAMERA_COLOR_CORRECTION_START + 2,
+    /**
+     * <p>Mode of operation for the chromatic aberration correction algorithm.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_color_correction_aberration_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Chromatic (color) aberration is caused by the fact that different wavelengths of light
+     * can not focus on the same point after exiting from the lens. This metadata defines
+     * the high level control of chromatic aberration correction algorithm, which aims to
+     * minimize the chromatic artifacts that may occur along the object boundaries in an
+     * image.</p>
+     * <p>FAST/HIGH_QUALITY both mean that camera device determined aberration
+     * correction will be applied. HIGH_QUALITY mode indicates that the camera device will
+     * use the highest-quality aberration correction algorithms, even if it slows down
+     * capture rate. FAST means the camera device will not slow down capture rate when
+     * applying aberration correction.</p>
+     * <p>LEGACY devices will always be in FAST mode.</p>
+     */
+    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE =                  // byte (acamera_metadata_enum_android_color_correction_aberration_mode_t)
+            ACAMERA_COLOR_CORRECTION_START + 3,
+    /**
+     * <p>List of aberration correction modes for ACAMERA_COLOR_CORRECTION_ABERRATION_MODE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This key lists the valid modes for ACAMERA_COLOR_CORRECTION_ABERRATION_MODE.  If no
+     * aberration correction modes are available for a device, this list will solely include
+     * OFF mode. All camera devices will support either OFF or FAST mode.</p>
+     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always list
+     * OFF mode. This includes all FULL level devices.</p>
+     * <p>LEGACY devices will always only support FAST mode.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES =       // byte[n]
+            ACAMERA_COLOR_CORRECTION_START + 4,
+    ACAMERA_COLOR_CORRECTION_END,
+
+    /**
+     * <p>The desired setting for the camera device's auto-exposure
+     * algorithm's antibanding compensation.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_ae_antibanding_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Some kinds of lighting fixtures, such as some fluorescent
+     * lights, flicker at the rate of the power supply frequency
+     * (60Hz or 50Hz, depending on country). While this is
+     * typically not noticeable to a person, it can be visible to
+     * a camera device. If a camera sets its exposure time to the
+     * wrong value, the flicker may become visible in the
+     * viewfinder as flicker or in a final captured image, as a
+     * set of variable-brightness bands across the image.</p>
+     * <p>Therefore, the auto-exposure routines of camera devices
+     * include antibanding routines that ensure that the chosen
+     * exposure value will not cause such banding. The choice of
+     * exposure time depends on the rate of flicker, which the
+     * camera device can detect automatically, or the expected
+     * rate can be selected by the application using this
+     * control.</p>
+     * <p>A given camera device may not support all of the possible
+     * options for the antibanding mode. The
+     * ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES key contains
+     * the available modes for a given camera device.</p>
+     * <p>AUTO mode is the default if it is available on given
+     * camera device. When AUTO mode is not available, the
+     * default will be either 50HZ or 60HZ, and both 50HZ
+     * and 60HZ will be available.</p>
+     * <p>If manual exposure control is enabled (by setting
+     * ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE to OFF),
+     * then this setting has no effect, and the application must
+     * ensure it selects exposure times that do not cause banding
+     * issues. The ACAMERA_STATISTICS_SCENE_FLICKER key can assist
+     * the application in this.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_STATISTICS_SCENE_FLICKER
+     */
+    ACAMERA_CONTROL_AE_ANTIBANDING_MODE =                       // byte (acamera_metadata_enum_android_control_ae_antibanding_mode_t)
+            ACAMERA_CONTROL_START,
+    /**
+     * <p>Adjustment to auto-exposure (AE) target image
+     * brightness.</p>
+     *
+     * <p>Type: int32</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>The adjustment is measured as a count of steps, with the
+     * step size defined by ACAMERA_CONTROL_AE_COMPENSATION_STEP and the
+     * allowed range by ACAMERA_CONTROL_AE_COMPENSATION_RANGE.</p>
+     * <p>For example, if the exposure value (EV) step is 0.333, '6'
+     * will mean an exposure compensation of +2 EV; -3 will mean an
+     * exposure compensation of -1 EV. One EV represents a doubling
+     * of image brightness. Note that this control will only be
+     * effective if ACAMERA_CONTROL_AE_MODE <code>!=</code> OFF. This control
+     * will take effect even when ACAMERA_CONTROL_AE_LOCK <code>== true</code>.</p>
+     * <p>In the event of exposure compensation value being changed, camera device
+     * may take several frames to reach the newly requested exposure target.
+     * During that time, ACAMERA_CONTROL_AE_STATE field will be in the SEARCHING
+     * state. Once the new exposure target is reached, ACAMERA_CONTROL_AE_STATE will
+     * change from SEARCHING to either CONVERGED, LOCKED (if AE lock is enabled), or
+     * FLASH_REQUIRED (if the scene is too dark for still capture).</p>
+     *
+     * @see ACAMERA_CONTROL_AE_COMPENSATION_RANGE
+     * @see ACAMERA_CONTROL_AE_COMPENSATION_STEP
+     * @see ACAMERA_CONTROL_AE_LOCK
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AE_STATE
+     */
+    ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION =                  // int32
+            ACAMERA_CONTROL_START + 1,
+    /**
+     * <p>Whether auto-exposure (AE) is currently locked to its latest
+     * calculated values.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_ae_lock_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>When set to <code>true</code> (ON), the AE algorithm is locked to its latest parameters,
+     * and will not change exposure settings until the lock is set to <code>false</code> (OFF).</p>
+     * <p>Note that even when AE is locked, the flash may be fired if
+     * the ACAMERA_CONTROL_AE_MODE is ON_AUTO_FLASH /
+     * ON_ALWAYS_FLASH / ON_AUTO_FLASH_REDEYE.</p>
+     * <p>When ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION is changed, even if the AE lock
+     * is ON, the camera device will still adjust its exposure value.</p>
+     * <p>If AE precapture is triggered (see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER)
+     * when AE is already locked, the camera device will not change the exposure time
+     * (ACAMERA_SENSOR_EXPOSURE_TIME) and sensitivity (ACAMERA_SENSOR_SENSITIVITY)
+     * parameters. The flash may be fired if the ACAMERA_CONTROL_AE_MODE
+     * is ON_AUTO_FLASH/ON_AUTO_FLASH_REDEYE and the scene is too dark. If the
+     * ACAMERA_CONTROL_AE_MODE is ON_ALWAYS_FLASH, the scene may become overexposed.
+     * Similarly, AE precapture trigger CANCEL has no effect when AE is already locked.</p>
+     * <p>When an AE precapture sequence is triggered, AE unlock will not be able to unlock
+     * the AE if AE is locked by the camera device internally during precapture metering
+     * sequence In other words, submitting requests with AE unlock has no effect for an
+     * ongoing precapture metering sequence. Otherwise, the precapture metering sequence
+     * will never succeed in a sequence of preview requests where AE lock is always set
+     * to <code>false</code>.</p>
+     * <p>Since the camera device has a pipeline of in-flight requests, the settings that
+     * get locked do not necessarily correspond to the settings that were present in the
+     * latest capture result received from the camera device, since additional captures
+     * and AE updates may have occurred even before the result was sent out. If an
+     * application is switching between automatic and manual control and wishes to eliminate
+     * any flicker during the switch, the following procedure is recommended:</p>
+     * <ol>
+     * <li>Starting in auto-AE mode:</li>
+     * <li>Lock AE</li>
+     * <li>Wait for the first result to be output that has the AE locked</li>
+     * <li>Copy exposure settings from that result into a request, set the request to manual AE</li>
+     * <li>Submit the capture request, proceed to run manual AE as desired.</li>
+     * </ol>
+     * <p>See ACAMERA_CONTROL_AE_STATE for AE lock related state transition details.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_AE_STATE
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_AE_LOCK =                                   // byte (acamera_metadata_enum_android_control_ae_lock_t)
+            ACAMERA_CONTROL_START + 2,
+    /**
+     * <p>The desired mode for the camera device's
+     * auto-exposure routine.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_ae_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>This control is only effective if ACAMERA_CONTROL_MODE is
+     * AUTO.</p>
+     * <p>When set to any of the ON modes, the camera device's
+     * auto-exposure routine is enabled, overriding the
+     * application's selected exposure time, sensor sensitivity,
+     * and frame duration (ACAMERA_SENSOR_EXPOSURE_TIME,
+     * ACAMERA_SENSOR_SENSITIVITY, and
+     * ACAMERA_SENSOR_FRAME_DURATION). If one of the FLASH modes
+     * is selected, the camera device's flash unit controls are
+     * also overridden.</p>
+     * <p>The FLASH modes are only available if the camera device
+     * has a flash unit (ACAMERA_FLASH_INFO_AVAILABLE is <code>true</code>).</p>
+     * <p>If flash TORCH mode is desired, this field must be set to
+     * ON or OFF, and ACAMERA_FLASH_MODE set to TORCH.</p>
+     * <p>When set to any of the ON modes, the values chosen by the
+     * camera device auto-exposure routine for the overridden
+     * fields for a given capture will be available in its
+     * CaptureResult.</p>
+     *
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_FLASH_INFO_AVAILABLE
+     * @see ACAMERA_FLASH_MODE
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_AE_MODE =                                   // byte (acamera_metadata_enum_android_control_ae_mode_t)
+            ACAMERA_CONTROL_START + 3,
+    /**
+     * <p>List of metering areas to use for auto-exposure adjustment.</p>
+     *
+     * <p>Type: int32[5*area_count]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Not available if android.control.maxRegionsAe is 0.
+     * Otherwise will always be present.</p>
+     * <p>The maximum number of regions supported by the device is determined by the value
+     * of android.control.maxRegionsAe.</p>
+     * <p>The data representation is int[5 * area_count].
+     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
+     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
+     * ymax.</p>
+     * <p>The coordinate system is based on the active pixel array,
+     * with (0,0) being the top-left pixel in the active pixel array, and
+     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
+     * bottom-right pixel in the active pixel array.</p>
+     * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight
+     * for every pixel in the area. This means that a large metering area
+     * with the same weight as a smaller area will have more effect in
+     * the metering result. Metering areas can partially overlap and the
+     * camera device will add the weights in the overlap region.</p>
+     * <p>The weights are relative to weights of other exposure metering regions, so if only one
+     * region is used, all non-zero weights will have the same effect. A region with 0
+     * weight is ignored.</p>
+     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
+     * camera device.</p>
+     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
+     * capture result metadata, the camera device will ignore the sections outside the crop
+     * region and output only the intersection rectangle as the metering region in the result
+     * metadata.  If the region is entirely outside the crop region, it will be ignored and
+     * not reported in the result metadata.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_CONTROL_AE_REGIONS =                                // int32[5*area_count]
+            ACAMERA_CONTROL_START + 4,
+    /**
+     * <p>Range over which the auto-exposure routine can
+     * adjust the capture frame rate to maintain good
+     * exposure.</p>
+     *
+     * <p>Type: int32[2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Only constrains auto-exposure (AE) algorithm, not
+     * manual control of ACAMERA_SENSOR_EXPOSURE_TIME and
+     * ACAMERA_SENSOR_FRAME_DURATION.</p>
+     *
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     */
+    ACAMERA_CONTROL_AE_TARGET_FPS_RANGE =                       // int32[2]
+            ACAMERA_CONTROL_START + 5,
+    /**
+     * <p>Whether the camera device will trigger a precapture
+     * metering sequence when it processes this request.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_ae_precapture_trigger_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>This entry is normally set to IDLE, or is not
+     * included at all in the request settings. When included and
+     * set to START, the camera device will trigger the auto-exposure (AE)
+     * precapture metering sequence.</p>
+     * <p>When set to CANCEL, the camera device will cancel any active
+     * precapture metering trigger, and return to its initial AE state.
+     * If a precapture metering sequence is already completed, and the camera
+     * device has implicitly locked the AE for subsequent still capture, the
+     * CANCEL trigger will unlock the AE and return to its initial AE state.</p>
+     * <p>The precapture sequence should be triggered before starting a
+     * high-quality still capture for final metering decisions to
+     * be made, and for firing pre-capture flash pulses to estimate
+     * scene brightness and required final capture flash power, when
+     * the flash is enabled.</p>
+     * <p>Normally, this entry should be set to START for only a
+     * single request, and the application should wait until the
+     * sequence completes before starting a new one.</p>
+     * <p>When a precapture metering sequence is finished, the camera device
+     * may lock the auto-exposure routine internally to be able to accurately expose the
+     * subsequent still capture image (<code>ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE</code>).
+     * For this case, the AE may not resume normal scan if no subsequent still capture is
+     * submitted. To ensure that the AE routine restarts normal scan, the application should
+     * submit a request with <code>ACAMERA_CONTROL_AE_LOCK == true</code>, followed by a request
+     * with <code>ACAMERA_CONTROL_AE_LOCK == false</code>, if the application decides not to submit a
+     * still capture request after the precapture sequence completes. Alternatively, for
+     * API level 23 or newer devices, the CANCEL can be used to unlock the camera device
+     * internally locked AE if the application doesn't submit a still capture request after
+     * the AE precapture trigger. Note that, the CANCEL was added in API level 23, and must not
+     * be used in devices that have earlier API levels.</p>
+     * <p>The exact effect of auto-exposure (AE) precapture trigger
+     * depends on the current AE mode and state; see
+     * ACAMERA_CONTROL_AE_STATE for AE precapture state transition
+     * details.</p>
+     * <p>On LEGACY-level devices, the precapture trigger is not supported;
+     * capturing a high-resolution JPEG image will automatically trigger a
+     * precapture sequence before the high-resolution capture, including
+     * potentially firing a pre-capture flash.</p>
+     * <p>Using the precapture trigger and the auto-focus trigger ACAMERA_CONTROL_AF_TRIGGER
+     * simultaneously is allowed. However, since these triggers often require cooperation between
+     * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a
+     * focus sweep), the camera device may delay acting on a later trigger until the previous
+     * trigger has been fully handled. This may lead to longer intervals between the trigger and
+     * changes to ACAMERA_CONTROL_AE_STATE indicating the start of the precapture sequence, for
+     * example.</p>
+     * <p>If both the precapture and the auto-focus trigger are activated on the same request, then
+     * the camera device will complete them in the optimal order for that device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_LOCK
+     * @see ACAMERA_CONTROL_AE_STATE
+     * @see ACAMERA_CONTROL_AF_TRIGGER
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER =                     // byte (acamera_metadata_enum_android_control_ae_precapture_trigger_t)
+            ACAMERA_CONTROL_START + 6,
+    /**
+     * <p>Whether auto-focus (AF) is currently enabled, and what
+     * mode it is set to.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_af_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Only effective if ACAMERA_CONTROL_MODE = AUTO and the lens is not fixed focus
+     * (i.e. <code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE &gt; 0</code>). Also note that
+     * when ACAMERA_CONTROL_AE_MODE is OFF, the behavior of AF is device
+     * dependent. It is recommended to lock AF by using ACAMERA_CONTROL_AF_TRIGGER before
+     * setting ACAMERA_CONTROL_AE_MODE to OFF, or set AF mode to OFF when AE is OFF.</p>
+     * <p>If the lens is controlled by the camera device auto-focus algorithm,
+     * the camera device will report the current AF status in ACAMERA_CONTROL_AF_STATE
+     * in result metadata.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AF_STATE
+     * @see ACAMERA_CONTROL_AF_TRIGGER
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_CONTROL_AF_MODE =                                   // byte (acamera_metadata_enum_android_control_af_mode_t)
+            ACAMERA_CONTROL_START + 7,
+    /**
+     * <p>List of metering areas to use for auto-focus.</p>
+     *
+     * <p>Type: int32[5*area_count]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Not available if android.control.maxRegionsAf is 0.
+     * Otherwise will always be present.</p>
+     * <p>The maximum number of focus areas supported by the device is determined by the value
+     * of android.control.maxRegionsAf.</p>
+     * <p>The data representation is int[5 * area_count].
+     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
+     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
+     * ymax.</p>
+     * <p>The coordinate system is based on the active pixel array,
+     * with (0,0) being the top-left pixel in the active pixel array, and
+     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
+     * bottom-right pixel in the active pixel array.</p>
+     * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight
+     * for every pixel in the area. This means that a large metering area
+     * with the same weight as a smaller area will have more effect in
+     * the metering result. Metering areas can partially overlap and the
+     * camera device will add the weights in the overlap region.</p>
+     * <p>The weights are relative to weights of other metering regions, so if only one region
+     * is used, all non-zero weights will have the same effect. A region with 0 weight is
+     * ignored.</p>
+     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
+     * camera device.</p>
+     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
+     * capture result metadata, the camera device will ignore the sections outside the crop
+     * region and output only the intersection rectangle as the metering region in the result
+     * metadata. If the region is entirely outside the crop region, it will be ignored and
+     * not reported in the result metadata.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_CONTROL_AF_REGIONS =                                // int32[5*area_count]
+            ACAMERA_CONTROL_START + 8,
+    /**
+     * <p>Whether the camera device will trigger autofocus for this request.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_af_trigger_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>This entry is normally set to IDLE, or is not
+     * included at all in the request settings.</p>
+     * <p>When included and set to START, the camera device will trigger the
+     * autofocus algorithm. If autofocus is disabled, this trigger has no effect.</p>
+     * <p>When set to CANCEL, the camera device will cancel any active trigger,
+     * and return to its initial AF state.</p>
+     * <p>Generally, applications should set this entry to START or CANCEL for only a
+     * single capture, and then return it to IDLE (or not set at all). Specifying
+     * START for multiple captures in a row means restarting the AF operation over
+     * and over again.</p>
+     * <p>See ACAMERA_CONTROL_AF_STATE for what the trigger means for each AF mode.</p>
+     * <p>Using the autofocus trigger and the precapture trigger ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * simultaneously is allowed. However, since these triggers often require cooperation between
+     * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a
+     * focus sweep), the camera device may delay acting on a later trigger until the previous
+     * trigger has been fully handled. This may lead to longer intervals between the trigger and
+     * changes to ACAMERA_CONTROL_AF_STATE, for example.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_AF_STATE
+     */
+    ACAMERA_CONTROL_AF_TRIGGER =                                // byte (acamera_metadata_enum_android_control_af_trigger_t)
+            ACAMERA_CONTROL_START + 9,
+    /**
+     * <p>Whether auto-white balance (AWB) is currently locked to its
+     * latest calculated values.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_awb_lock_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>When set to <code>true</code> (ON), the AWB algorithm is locked to its latest parameters,
+     * and will not change color balance settings until the lock is set to <code>false</code> (OFF).</p>
+     * <p>Since the camera device has a pipeline of in-flight requests, the settings that
+     * get locked do not necessarily correspond to the settings that were present in the
+     * latest capture result received from the camera device, since additional captures
+     * and AWB updates may have occurred even before the result was sent out. If an
+     * application is switching between automatic and manual control and wishes to eliminate
+     * any flicker during the switch, the following procedure is recommended:</p>
+     * <ol>
+     * <li>Starting in auto-AWB mode:</li>
+     * <li>Lock AWB</li>
+     * <li>Wait for the first result to be output that has the AWB locked</li>
+     * <li>Copy AWB settings from that result into a request, set the request to manual AWB</li>
+     * <li>Submit the capture request, proceed to run manual AWB as desired.</li>
+     * </ol>
+     * <p>Note that AWB lock is only meaningful when
+     * ACAMERA_CONTROL_AWB_MODE is in the AUTO mode; in other modes,
+     * AWB is already fixed to a specific setting.</p>
+     * <p>Some LEGACY devices may not support ON; the value is then overridden to OFF.</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_CONTROL_AWB_LOCK =                                  // byte (acamera_metadata_enum_android_control_awb_lock_t)
+            ACAMERA_CONTROL_START + 10,
+    /**
+     * <p>Whether auto-white balance (AWB) is currently setting the color
+     * transform fields, and what its illumination target
+     * is.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_awb_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>This control is only effective if ACAMERA_CONTROL_MODE is AUTO.</p>
+     * <p>When set to the ON mode, the camera device's auto-white balance
+     * routine is enabled, overriding the application's selected
+     * ACAMERA_COLOR_CORRECTION_TRANSFORM, ACAMERA_COLOR_CORRECTION_GAINS and
+     * ACAMERA_COLOR_CORRECTION_MODE. Note that when ACAMERA_CONTROL_AE_MODE
+     * is OFF, the behavior of AWB is device dependent. It is recommened to
+     * also set AWB mode to OFF or lock AWB by using ACAMERA_CONTROL_AWB_LOCK before
+     * setting AE mode to OFF.</p>
+     * <p>When set to the OFF mode, the camera device's auto-white balance
+     * routine is disabled. The application manually controls the white
+     * balance by ACAMERA_COLOR_CORRECTION_TRANSFORM, ACAMERA_COLOR_CORRECTION_GAINS
+     * and ACAMERA_COLOR_CORRECTION_MODE.</p>
+     * <p>When set to any other modes, the camera device's auto-white
+     * balance routine is disabled. The camera device uses each
+     * particular illumination target for white balance
+     * adjustment. The application's values for
+     * ACAMERA_COLOR_CORRECTION_TRANSFORM,
+     * ACAMERA_COLOR_CORRECTION_GAINS and
+     * ACAMERA_COLOR_CORRECTION_MODE are ignored.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_MODE
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AWB_LOCK
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_CONTROL_AWB_MODE =                                  // byte (acamera_metadata_enum_android_control_awb_mode_t)
+            ACAMERA_CONTROL_START + 11,
+    /**
+     * <p>List of metering areas to use for auto-white-balance illuminant
+     * estimation.</p>
+     *
+     * <p>Type: int32[5*area_count]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Not available if android.control.maxRegionsAwb is 0.
+     * Otherwise will always be present.</p>
+     * <p>The maximum number of regions supported by the device is determined by the value
+     * of android.control.maxRegionsAwb.</p>
+     * <p>The data representation is int[5 * area_count].
+     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
+     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
+     * ymax.</p>
+     * <p>The coordinate system is based on the active pixel array,
+     * with (0,0) being the top-left pixel in the active pixel array, and
+     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
+     * bottom-right pixel in the active pixel array.</p>
+     * <p>The weight must range from 0 to 1000, and represents a weight
+     * for every pixel in the area. This means that a large metering area
+     * with the same weight as a smaller area will have more effect in
+     * the metering result. Metering areas can partially overlap and the
+     * camera device will add the weights in the overlap region.</p>
+     * <p>The weights are relative to weights of other white balance metering regions, so if
+     * only one region is used, all non-zero weights will have the same effect. A region with
+     * 0 weight is ignored.</p>
+     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
+     * camera device.</p>
+     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
+     * capture result metadata, the camera device will ignore the sections outside the crop
+     * region and output only the intersection rectangle as the metering region in the result
+     * metadata.  If the region is entirely outside the crop region, it will be ignored and
+     * not reported in the result metadata.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_CONTROL_AWB_REGIONS =                               // int32[5*area_count]
+            ACAMERA_CONTROL_START + 12,
+    /**
+     * <p>Information to the camera device 3A (auto-exposure,
+     * auto-focus, auto-white balance) routines about the purpose
+     * of this capture, to help the camera device to decide optimal 3A
+     * strategy.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_capture_intent_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>This control (except for MANUAL) is only effective if
+     * <code>ACAMERA_CONTROL_MODE != OFF</code> and any 3A routine is active.</p>
+     * <p>ZERO_SHUTTER_LAG will be supported if ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * contains PRIVATE_REPROCESSING or YUV_REPROCESSING. MANUAL will be supported if
+     * ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains MANUAL_SENSOR. Other intent values are
+     * always supported.</p>
+     *
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT =                            // byte (acamera_metadata_enum_android_control_capture_intent_t)
+            ACAMERA_CONTROL_START + 13,
+    /**
+     * <p>A special color effect to apply.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_effect_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>When this mode is set, a color effect will be applied
+     * to images produced by the camera device. The interpretation
+     * and implementation of these color effects is left to the
+     * implementor of the camera device, and should not be
+     * depended on to be consistent (or present) across all
+     * devices.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE =                               // byte (acamera_metadata_enum_android_control_effect_mode_t)
+            ACAMERA_CONTROL_START + 14,
+    /**
+     * <p>Overall mode of 3A (auto-exposure, auto-white-balance, auto-focus) control
+     * routines.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>This is a top-level 3A control switch. When set to OFF, all 3A control
+     * by the camera device is disabled. The application must set the fields for
+     * capture parameters itself.</p>
+     * <p>When set to AUTO, the individual algorithm controls in
+     * ACAMERA_CONTROL_* are in effect, such as ACAMERA_CONTROL_AF_MODE.</p>
+     * <p>When set to USE_SCENE_MODE, the individual controls in
+     * ACAMERA_CONTROL_* are mostly disabled, and the camera device implements
+     * one of the scene mode settings (such as ACTION, SUNSET, or PARTY)
+     * as it wishes. The camera device scene mode 3A settings are provided by
+     * capture results {@link ACameraMetadata} from
+     * {@link ACameraCaptureSession_captureCallback_result}.</p>
+     * <p>When set to OFF_KEEP_STATE, it is similar to OFF mode, the only difference
+     * is that this frame will not be used by camera device background 3A statistics
+     * update, as if this frame is never captured. This mode can be used in the scenario
+     * where the application doesn't want a 3A manual control capture to affect
+     * the subsequent auto 3A capture results.</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     */
+    ACAMERA_CONTROL_MODE =                                      // byte (acamera_metadata_enum_android_control_mode_t)
+            ACAMERA_CONTROL_START + 15,
+    /**
+     * <p>Control for which scene mode is currently active.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_scene_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Scene modes are custom camera modes optimized for a certain set of conditions and
+     * capture settings.</p>
+     * <p>This is the mode that that is active when
+     * <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code>. Aside from FACE_PRIORITY, these modes will
+     * disable ACAMERA_CONTROL_AE_MODE, ACAMERA_CONTROL_AWB_MODE, and ACAMERA_CONTROL_AF_MODE
+     * while in use.</p>
+     * <p>The interpretation and implementation of these scene modes is left
+     * to the implementor of the camera device. Their behavior will not be
+     * consistent across all devices, and any given device may only implement
+     * a subset of these modes.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_CONTROL_SCENE_MODE =                                // byte (acamera_metadata_enum_android_control_scene_mode_t)
+            ACAMERA_CONTROL_START + 16,
+    /**
+     * <p>Whether video stabilization is
+     * active.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_video_stabilization_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Video stabilization automatically warps images from
+     * the camera in order to stabilize motion between consecutive frames.</p>
+     * <p>If enabled, video stabilization can modify the
+     * ACAMERA_SCALER_CROP_REGION to keep the video stream stabilized.</p>
+     * <p>Switching between different video stabilization modes may take several
+     * frames to initialize, the camera device will report the current mode
+     * in capture result metadata. For example, When "ON" mode is requested,
+     * the video stabilization modes in the first several capture results may
+     * still be "OFF", and it will become "ON" when the initialization is
+     * done.</p>
+     * <p>In addition, not all recording sizes or frame rates may be supported for
+     * stabilization by a device that reports stabilization support. It is guaranteed
+     * that an output targeting a MediaRecorder or MediaCodec will be stabilized if
+     * the recording resolution is less than or equal to 1920 x 1080 (width less than
+     * or equal to 1920, height less than or equal to 1080), and the recording
+     * frame rate is less than or equal to 30fps.  At other sizes, the CaptureResult
+     * ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE field will return
+     * OFF if the recording output is not stabilized, or if there are no output
+     * Surface types that can be stabilized.</p>
+     * <p>If a camera device supports both this mode and OIS
+     * (ACAMERA_LENS_OPTICAL_STABILIZATION_MODE), turning both modes on may
+     * produce undesirable interaction, so it is recommended not to enable
+     * both at the same time.</p>
+     *
+     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+     * @see ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
+     * @see ACAMERA_SCALER_CROP_REGION
+     */
+    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE =                  // byte (acamera_metadata_enum_android_control_video_stabilization_mode_t)
+            ACAMERA_CONTROL_START + 17,
+    /**
+     * <p>List of auto-exposure antibanding modes for ACAMERA_CONTROL_AE_ANTIBANDING_MODE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Not all of the auto-exposure anti-banding modes may be
+     * supported by a given camera device. This field lists the
+     * valid anti-banding modes that the application may request
+     * for this camera device with the
+     * ACAMERA_CONTROL_AE_ANTIBANDING_MODE control.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+     */
+    ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES =            // byte[n]
+            ACAMERA_CONTROL_START + 18,
+    /**
+     * <p>List of auto-exposure modes for ACAMERA_CONTROL_AE_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Not all the auto-exposure modes may be supported by a
+     * given camera device, especially if no flash unit is
+     * available. This entry lists the valid modes for
+     * ACAMERA_CONTROL_AE_MODE for this camera device.</p>
+     * <p>All camera devices support ON, and all camera devices with flash
+     * units support ON_AUTO_FLASH and ON_ALWAYS_FLASH.</p>
+     * <p>FULL mode camera devices always support OFF mode,
+     * which enables application control of camera exposure time,
+     * sensitivity, and frame duration.</p>
+     * <p>LEGACY mode camera devices never support OFF mode.
+     * LIMITED mode devices support OFF if they support the MANUAL_SENSOR
+     * capability.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     */
+    ACAMERA_CONTROL_AE_AVAILABLE_MODES =                        // byte[n]
+            ACAMERA_CONTROL_START + 19,
+    /**
+     * <p>List of frame rate ranges for ACAMERA_CONTROL_AE_TARGET_FPS_RANGE supported by
+     * this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_TARGET_FPS_RANGE
+     *
+     * <p>Type: int32[2*n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>For devices at the LEGACY level or above:</p>
+     * <ul>
+     * <li>
+     * <p>For constant-framerate recording, for each normal
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>, that is, a
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a> that has
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#quality">quality</a>
+     * in the range [
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#QUALITY_LOW">QUALITY_LOW</a>,
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#QUALITY_2160P">QUALITY_2160P</a>],
+     * if the profile is supported by the device and has
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#videoFrameRate">videoFrameRate</a>
+     * <code>x</code>, this list will always include (<code>x</code>,<code>x</code>).</p>
+     * </li>
+     * <li>
+     * <p>Also, a camera device must either not support any
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>,
+     * or support at least one
+     * normal <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>
+     * that has
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#videoFrameRate">videoFrameRate</a> <code>x</code> &gt;= 24.</p>
+     * </li>
+     * </ul>
+     * <p>For devices at the LIMITED level or above:</p>
+     * <ul>
+     * <li>For YUV_420_888 burst capture use case, this list will always include (<code>min</code>, <code>max</code>)
+     * and (<code>max</code>, <code>max</code>) where <code>min</code> &lt;= 15 and <code>max</code> = the maximum output frame rate of the
+     * maximum YUV_420_888 output size.</li>
+     * </ul>
+     */
+    ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES =            // int32[2*n]
+            ACAMERA_CONTROL_START + 20,
+    /**
+     * <p>Maximum and minimum exposure compensation values for
+     * ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION, in counts of ACAMERA_CONTROL_AE_COMPENSATION_STEP,
+     * that are supported by this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_COMPENSATION_STEP
+     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+     *
+     * <p>Type: int32[2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     */
+    ACAMERA_CONTROL_AE_COMPENSATION_RANGE =                     // int32[2]
+            ACAMERA_CONTROL_START + 21,
+    /**
+     * <p>Smallest step by which the exposure compensation
+     * can be changed.</p>
+     *
+     * <p>Type: rational</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This is the unit for ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION. For example, if this key has
+     * a value of <code>1/2</code>, then a setting of <code>-2</code> for ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION means
+     * that the target EV offset for the auto-exposure routine is -1 EV.</p>
+     * <p>One unit of EV compensation changes the brightness of the captured image by a factor
+     * of two. +1 EV doubles the image brightness, while -1 EV halves the image brightness.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+     */
+    ACAMERA_CONTROL_AE_COMPENSATION_STEP =                      // rational
+            ACAMERA_CONTROL_START + 22,
+    /**
+     * <p>List of auto-focus (AF) modes for ACAMERA_CONTROL_AF_MODE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Not all the auto-focus modes may be supported by a
+     * given camera device. This entry lists the valid modes for
+     * ACAMERA_CONTROL_AF_MODE for this camera device.</p>
+     * <p>All LIMITED and FULL mode camera devices will support OFF mode, and all
+     * camera devices with adjustable focuser units
+     * (<code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE &gt; 0</code>) will support AUTO mode.</p>
+     * <p>LEGACY devices will support OFF mode only if they support
+     * focusing to infinity (by also setting ACAMERA_LENS_FOCUS_DISTANCE to
+     * <code>0.0f</code>).</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_CONTROL_AF_AVAILABLE_MODES =                        // byte[n]
+            ACAMERA_CONTROL_START + 23,
+    /**
+     * <p>List of color effects for ACAMERA_CONTROL_EFFECT_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_CONTROL_EFFECT_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This list contains the color effect modes that can be applied to
+     * images produced by the camera device.
+     * Implementations are not expected to be consistent across all devices.
+     * If no color effect modes are available for a device, this will only list
+     * OFF.</p>
+     * <p>A color effect will only be applied if
+     * ACAMERA_CONTROL_MODE != OFF.  OFF is always included in this list.</p>
+     * <p>This control has no effect on the operation of other control routines such
+     * as auto-exposure, white balance, or focus.</p>
+     *
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_CONTROL_AVAILABLE_EFFECTS =                         // byte[n]
+            ACAMERA_CONTROL_START + 24,
+    /**
+     * <p>List of scene modes for ACAMERA_CONTROL_SCENE_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_CONTROL_SCENE_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This list contains scene modes that can be set for the camera device.
+     * Only scene modes that have been fully implemented for the
+     * camera device may be included here. Implementations are not expected
+     * to be consistent across all devices.</p>
+     * <p>If no scene modes are supported by the camera device, this
+     * will be set to DISABLED. Otherwise DISABLED will not be listed.</p>
+     * <p>FACE_PRIORITY is always listed if face detection is
+     * supported (i.e.<code>ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT &gt;
+     * 0</code>).</p>
+     *
+     * @see ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT
+     */
+    ACAMERA_CONTROL_AVAILABLE_SCENE_MODES =                     // byte[n]
+            ACAMERA_CONTROL_START + 25,
+    /**
+     * <p>List of video stabilization modes for ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+     * that are supported by this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>OFF will always be listed.</p>
+     */
+    ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES =       // byte[n]
+            ACAMERA_CONTROL_START + 26,
+    /**
+     * <p>List of auto-white-balance modes for ACAMERA_CONTROL_AWB_MODE that are supported by this
+     * camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Not all the auto-white-balance modes may be supported by a
+     * given camera device. This entry lists the valid modes for
+     * ACAMERA_CONTROL_AWB_MODE for this camera device.</p>
+     * <p>All camera devices will support ON mode.</p>
+     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always support OFF
+     * mode, which enables application control of white balance, by using
+     * ACAMERA_COLOR_CORRECTION_TRANSFORM and ACAMERA_COLOR_CORRECTION_GAINS(ACAMERA_COLOR_CORRECTION_MODE must be set to TRANSFORM_MATRIX). This includes all FULL
+     * mode camera devices.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_MODE
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_CONTROL_AWB_AVAILABLE_MODES =                       // byte[n]
+            ACAMERA_CONTROL_START + 27,
+    /**
+     * <p>List of the maximum number of regions that can be used for metering in
+     * auto-exposure (AE), auto-white balance (AWB), and auto-focus (AF);
+     * this corresponds to the the maximum number of elements in
+     * ACAMERA_CONTROL_AE_REGIONS, ACAMERA_CONTROL_AWB_REGIONS,
+     * and ACAMERA_CONTROL_AF_REGIONS.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_REGIONS
+     * @see ACAMERA_CONTROL_AF_REGIONS
+     * @see ACAMERA_CONTROL_AWB_REGIONS
+     *
+     * <p>Type: int32[3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     */
+    ACAMERA_CONTROL_MAX_REGIONS =                               // int32[3]
+            ACAMERA_CONTROL_START + 28,
+    /**
+     * <p>Current state of the auto-exposure (AE) algorithm.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_ae_state_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>Switching between or enabling AE modes (ACAMERA_CONTROL_AE_MODE) always
+     * resets the AE state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
+     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
+     * the algorithm states to INACTIVE.</p>
+     * <p>The camera device can do several state transitions between two results, if it is
+     * allowed by the state transition table. For example: INACTIVE may never actually be
+     * seen in a result.</p>
+     * <p>The state in the result is the state for this image (in sync with this image): if
+     * AE state becomes CONVERGED, then the image data associated with this result should
+     * be good to use.</p>
+     * <p>Below are state transition tables for different AE modes.</p>
+     * <p>State       | Transition Cause | New State | Notes
+     * :------------:|:----------------:|:---------:|:-----------------------:
+     * INACTIVE      |                  | INACTIVE  | Camera device auto exposure algorithm is disabled</p>
+     * <p>When ACAMERA_CONTROL_AE_MODE is AE_MODE_ON_*:</p>
+     * <p>State        | Transition Cause                             | New State      | Notes
+     * :-------------:|:--------------------------------------------:|:--------------:|:-----------------:
+     * INACTIVE       | Camera device initiates AE scan              | SEARCHING      | Values changing
+     * INACTIVE       | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
+     * SEARCHING      | Camera device finishes AE scan               | CONVERGED      | Good values, not changing
+     * SEARCHING      | Camera device finishes AE scan               | FLASH_REQUIRED | Converged but too dark w/o flash
+     * SEARCHING      | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
+     * CONVERGED      | Camera device initiates AE scan              | SEARCHING      | Values changing
+     * CONVERGED      | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
+     * FLASH_REQUIRED | Camera device initiates AE scan              | SEARCHING      | Values changing
+     * FLASH_REQUIRED | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
+     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | SEARCHING      | Values not good after unlock
+     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | CONVERGED      | Values good after unlock
+     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | FLASH_REQUIRED | Exposure good, but too dark
+     * PRECAPTURE     | Sequence done. ACAMERA_CONTROL_AE_LOCK is OFF | CONVERGED      | Ready for high-quality capture
+     * PRECAPTURE     | Sequence done. ACAMERA_CONTROL_AE_LOCK is ON  | LOCKED         | Ready for high-quality capture
+     * LOCKED         | aeLock is ON and aePrecaptureTrigger is START | LOCKED        | Precapture trigger is ignored when AE is already locked
+     * LOCKED         | aeLock is ON and aePrecaptureTrigger is CANCEL| LOCKED        | Precapture trigger is ignored when AE is already locked
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START | PRECAPTURE     | Start AE precapture metering sequence
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL| INACTIVE       | Currently active precapture metering sequence is canceled</p>
+     * <p>For the above table, the camera device may skip reporting any state changes that happen
+     * without application intervention (i.e. mode switch, trigger, locking). Any state that
+     * can be skipped in that manner is called a transient state.</p>
+     * <p>For example, for above AE modes (AE_MODE_ON_*), in addition to the state transitions
+     * listed in above table, it is also legal for the camera device to skip one or more
+     * transient states between two results. See below table for examples:</p>
+     * <p>State        | Transition Cause                                            | New State      | Notes
+     * :-------------:|:-----------------------------------------------------------:|:--------------:|:-----------------:
+     * INACTIVE       | Camera device finished AE scan                              | CONVERGED      | Values are already good, transient states are skipped by camera device.
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START, sequence done | FLASH_REQUIRED | Converged but too dark w/o flash after a precapture sequence, transient states are skipped by camera device.
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START, sequence done | CONVERGED      | Converged after a precapture sequence, transient states are skipped by camera device.
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL, converged    | FLASH_REQUIRED | Converged but too dark w/o flash after a precapture sequence is canceled, transient states are skipped by camera device.
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL, converged    | CONVERGED      | Converged after a precapture sequenceis canceled, transient states are skipped by camera device.
+     * CONVERGED      | Camera device finished AE scan                              | FLASH_REQUIRED | Converged but too dark w/o flash after a new scan, transient states are skipped by camera device.
+     * FLASH_REQUIRED | Camera device finished AE scan                              | CONVERGED      | Converged after a new scan, transient states are skipped by camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_LOCK
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_CONTROL_SCENE_MODE
+     */
+    ACAMERA_CONTROL_AE_STATE =                                  // byte (acamera_metadata_enum_android_control_ae_state_t)
+            ACAMERA_CONTROL_START + 31,
+    /**
+     * <p>Current state of auto-focus (AF) algorithm.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_af_state_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>Switching between or enabling AF modes (ACAMERA_CONTROL_AF_MODE) always
+     * resets the AF state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
+     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
+     * the algorithm states to INACTIVE.</p>
+     * <p>The camera device can do several state transitions between two results, if it is
+     * allowed by the state transition table. For example: INACTIVE may never actually be
+     * seen in a result.</p>
+     * <p>The state in the result is the state for this image (in sync with this image): if
+     * AF state becomes FOCUSED, then the image data associated with this result should
+     * be sharp.</p>
+     * <p>Below are state transition tables for different AF modes.</p>
+     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_OFF or AF_MODE_EDOF:</p>
+     * <p>State       | Transition Cause | New State | Notes
+     * :------------:|:----------------:|:---------:|:-----------:
+     * INACTIVE      |                  | INACTIVE  | Never changes</p>
+     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_AUTO or AF_MODE_MACRO:</p>
+     * <p>State            | Transition Cause | New State          | Notes
+     * :-----------------:|:----------------:|:------------------:|:--------------:
+     * INACTIVE           | AF_TRIGGER       | ACTIVE_SCAN        | Start AF sweep, Lens now moving
+     * ACTIVE_SCAN        | AF sweep done    | FOCUSED_LOCKED     | Focused, Lens now locked
+     * ACTIVE_SCAN        | AF sweep done    | NOT_FOCUSED_LOCKED | Not focused, Lens now locked
+     * ACTIVE_SCAN        | AF_CANCEL        | INACTIVE           | Cancel/reset AF, Lens now locked
+     * FOCUSED_LOCKED     | AF_CANCEL        | INACTIVE           | Cancel/reset AF
+     * FOCUSED_LOCKED     | AF_TRIGGER       | ACTIVE_SCAN        | Start new sweep, Lens now moving
+     * NOT_FOCUSED_LOCKED | AF_CANCEL        | INACTIVE           | Cancel/reset AF
+     * NOT_FOCUSED_LOCKED | AF_TRIGGER       | ACTIVE_SCAN        | Start new sweep, Lens now moving
+     * Any state          | Mode change      | INACTIVE           |</p>
+     * <p>For the above table, the camera device may skip reporting any state changes that happen
+     * without application intervention (i.e. mode switch, trigger, locking). Any state that
+     * can be skipped in that manner is called a transient state.</p>
+     * <p>For example, for these AF modes (AF_MODE_AUTO and AF_MODE_MACRO), in addition to the
+     * state transitions listed in above table, it is also legal for the camera device to skip
+     * one or more transient states between two results. See below table for examples:</p>
+     * <p>State            | Transition Cause | New State          | Notes
+     * :-----------------:|:----------------:|:------------------:|:--------------:
+     * INACTIVE           | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is already good or good after a scan, lens is now locked.
+     * INACTIVE           | AF_TRIGGER       | NOT_FOCUSED_LOCKED | Focus failed after a scan, lens is now locked.
+     * FOCUSED_LOCKED     | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is already good or good after a scan, lens is now locked.
+     * NOT_FOCUSED_LOCKED | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is good after a scan, lens is not locked.</p>
+     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_CONTINUOUS_VIDEO:</p>
+     * <p>State            | Transition Cause                    | New State          | Notes
+     * :-----------------:|:-----------------------------------:|:------------------:|:--------------:
+     * INACTIVE           | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * INACTIVE           | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
+     * PASSIVE_SCAN       | Camera device completes current scan| PASSIVE_FOCUSED    | End AF scan, Lens now locked
+     * PASSIVE_SCAN       | Camera device fails current scan    | PASSIVE_UNFOCUSED  | End AF scan, Lens now locked
+     * PASSIVE_SCAN       | AF_TRIGGER                          | FOCUSED_LOCKED     | Immediate transition, if focus is good. Lens now locked
+     * PASSIVE_SCAN       | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | Immediate transition, if focus is bad. Lens now locked
+     * PASSIVE_SCAN       | AF_CANCEL                           | INACTIVE           | Reset lens position, Lens now locked
+     * PASSIVE_FOCUSED    | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * PASSIVE_UNFOCUSED  | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * PASSIVE_FOCUSED    | AF_TRIGGER                          | FOCUSED_LOCKED     | Immediate transition, lens now locked
+     * PASSIVE_UNFOCUSED  | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | Immediate transition, lens now locked
+     * FOCUSED_LOCKED     | AF_TRIGGER                          | FOCUSED_LOCKED     | No effect
+     * FOCUSED_LOCKED     | AF_CANCEL                           | INACTIVE           | Restart AF scan
+     * NOT_FOCUSED_LOCKED | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | No effect
+     * NOT_FOCUSED_LOCKED | AF_CANCEL                           | INACTIVE           | Restart AF scan</p>
+     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_CONTINUOUS_PICTURE:</p>
+     * <p>State            | Transition Cause                     | New State          | Notes
+     * :-----------------:|:------------------------------------:|:------------------:|:--------------:
+     * INACTIVE           | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * INACTIVE           | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
+     * PASSIVE_SCAN       | Camera device completes current scan | PASSIVE_FOCUSED    | End AF scan, Lens now locked
+     * PASSIVE_SCAN       | Camera device fails current scan     | PASSIVE_UNFOCUSED  | End AF scan, Lens now locked
+     * PASSIVE_SCAN       | AF_TRIGGER                           | FOCUSED_LOCKED     | Eventual transition once the focus is good. Lens now locked
+     * PASSIVE_SCAN       | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | Eventual transition if cannot find focus. Lens now locked
+     * PASSIVE_SCAN       | AF_CANCEL                            | INACTIVE           | Reset lens position, Lens now locked
+     * PASSIVE_FOCUSED    | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * PASSIVE_UNFOCUSED  | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * PASSIVE_FOCUSED    | AF_TRIGGER                           | FOCUSED_LOCKED     | Immediate trans. Lens now locked
+     * PASSIVE_UNFOCUSED  | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | Immediate trans. Lens now locked
+     * FOCUSED_LOCKED     | AF_TRIGGER                           | FOCUSED_LOCKED     | No effect
+     * FOCUSED_LOCKED     | AF_CANCEL                            | INACTIVE           | Restart AF scan
+     * NOT_FOCUSED_LOCKED | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | No effect
+     * NOT_FOCUSED_LOCKED | AF_CANCEL                            | INACTIVE           | Restart AF scan</p>
+     * <p>When switch between AF_MODE_CONTINUOUS_* (CAF modes) and AF_MODE_AUTO/AF_MODE_MACRO
+     * (AUTO modes), the initial INACTIVE or PASSIVE_SCAN states may be skipped by the
+     * camera device. When a trigger is included in a mode switch request, the trigger
+     * will be evaluated in the context of the new mode in the request.
+     * See below table for examples:</p>
+     * <p>State      | Transition Cause                       | New State                                | Notes
+     * :-----------:|:--------------------------------------:|:----------------------------------------:|:--------------:
+     * any state    | CAF--&gt;AUTO mode switch                 | INACTIVE                                 | Mode switch without trigger, initial state must be INACTIVE
+     * any state    | CAF--&gt;AUTO mode switch with AF_TRIGGER | trigger-reachable states from INACTIVE   | Mode switch with trigger, INACTIVE is skipped
+     * any state    | AUTO--&gt;CAF mode switch                 | passively reachable states from INACTIVE | Mode switch without trigger, passive transient state is skipped</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_CONTROL_SCENE_MODE
+     */
+    ACAMERA_CONTROL_AF_STATE =                                  // byte (acamera_metadata_enum_android_control_af_state_t)
+            ACAMERA_CONTROL_START + 32,
+    /**
+     * <p>Current state of auto-white balance (AWB) algorithm.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_awb_state_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>Switching between or enabling AWB modes (ACAMERA_CONTROL_AWB_MODE) always
+     * resets the AWB state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
+     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
+     * the algorithm states to INACTIVE.</p>
+     * <p>The camera device can do several state transitions between two results, if it is
+     * allowed by the state transition table. So INACTIVE may never actually be seen in
+     * a result.</p>
+     * <p>The state in the result is the state for this image (in sync with this image): if
+     * AWB state becomes CONVERGED, then the image data associated with this result should
+     * be good to use.</p>
+     * <p>Below are state transition tables for different AWB modes.</p>
+     * <p>When <code>ACAMERA_CONTROL_AWB_MODE != AWB_MODE_AUTO</code>:</p>
+     * <p>State       | Transition Cause | New State | Notes
+     * :------------:|:----------------:|:---------:|:-----------------------:
+     * INACTIVE      |                  |INACTIVE   |Camera device auto white balance algorithm is disabled</p>
+     * <p>When ACAMERA_CONTROL_AWB_MODE is AWB_MODE_AUTO:</p>
+     * <p>State        | Transition Cause                 | New State     | Notes
+     * :-------------:|:--------------------------------:|:-------------:|:-----------------:
+     * INACTIVE       | Camera device initiates AWB scan | SEARCHING     | Values changing
+     * INACTIVE       | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
+     * SEARCHING      | Camera device finishes AWB scan  | CONVERGED     | Good values, not changing
+     * SEARCHING      | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
+     * CONVERGED      | Camera device initiates AWB scan | SEARCHING     | Values changing
+     * CONVERGED      | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
+     * LOCKED         | ACAMERA_CONTROL_AWB_LOCK is OFF   | SEARCHING     | Values not good after unlock</p>
+     * <p>For the above table, the camera device may skip reporting any state changes that happen
+     * without application intervention (i.e. mode switch, trigger, locking). Any state that
+     * can be skipped in that manner is called a transient state.</p>
+     * <p>For example, for this AWB mode (AWB_MODE_AUTO), in addition to the state transitions
+     * listed in above table, it is also legal for the camera device to skip one or more
+     * transient states between two results. See below table for examples:</p>
+     * <p>State        | Transition Cause                 | New State     | Notes
+     * :-------------:|:--------------------------------:|:-------------:|:-----------------:
+     * INACTIVE       | Camera device finished AWB scan  | CONVERGED     | Values are already good, transient states are skipped by camera device.
+     * LOCKED         | ACAMERA_CONTROL_AWB_LOCK is OFF   | CONVERGED     | Values good after unlock, transient states are skipped by camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_LOCK
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_CONTROL_SCENE_MODE
+     */
+    ACAMERA_CONTROL_AWB_STATE =                                 // byte (acamera_metadata_enum_android_control_awb_state_t)
+            ACAMERA_CONTROL_START + 34,
+    /**
+     * <p>Whether the camera device supports ACAMERA_CONTROL_AE_LOCK</p>
+     *
+     * @see ACAMERA_CONTROL_AE_LOCK
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_ae_lock_available_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Devices with MANUAL_SENSOR capability or BURST_CAPTURE capability will always
+     * list <code>true</code>. This includes FULL devices.</p>
+     */
+    ACAMERA_CONTROL_AE_LOCK_AVAILABLE =                         // byte (acamera_metadata_enum_android_control_ae_lock_available_t)
+            ACAMERA_CONTROL_START + 36,
+    /**
+     * <p>Whether the camera device supports ACAMERA_CONTROL_AWB_LOCK</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_LOCK
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_awb_lock_available_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Devices with MANUAL_POST_PROCESSING capability or BURST_CAPTURE capability will
+     * always list <code>true</code>. This includes FULL devices.</p>
+     */
+    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE =                        // byte (acamera_metadata_enum_android_control_awb_lock_available_t)
+            ACAMERA_CONTROL_START + 37,
+    /**
+     * <p>List of control modes for ACAMERA_CONTROL_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_CONTROL_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This list contains control modes that can be set for the camera device.
+     * LEGACY mode devices will always support AUTO mode. LIMITED and FULL
+     * devices will always support OFF, AUTO modes.</p>
+     */
+    ACAMERA_CONTROL_AVAILABLE_MODES =                           // byte[n]
+            ACAMERA_CONTROL_START + 38,
+    /**
+     * <p>Range of boosts for ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST supported
+     * by this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
+     *
+     * <p>Type: int32[2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Devices support post RAW sensitivity boost  will advertise
+     * ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST key for controling
+     * post RAW sensitivity boost.</p>
+     * <p>This key will be <code>null</code> for devices that do not support any RAW format
+     * outputs. For devices that do support RAW format outputs, this key will always
+     * present, and if a device does not support post RAW sensitivity boost, it will
+     * list <code>(100, 100)</code> in this key.</p>
+     *
+     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
+     */
+    ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE =          // int32[2]
+            ACAMERA_CONTROL_START + 39,
+    /**
+     * <p>The amount of additional sensitivity boost applied to output images
+     * after RAW sensor data is captured.</p>
+     *
+     * <p>Type: int32</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Some camera devices support additional digital sensitivity boosting in the
+     * camera processing pipeline after sensor RAW image is captured.
+     * Such a boost will be applied to YUV/JPEG format output images but will not
+     * have effect on RAW output formats like RAW_SENSOR, RAW10, RAW12 or RAW_OPAQUE.</p>
+     * <p>This key will be <code>null</code> for devices that do not support any RAW format
+     * outputs. For devices that do support RAW format outputs, this key will always
+     * present, and if a device does not support post RAW sensitivity boost, it will
+     * list <code>100</code> in this key.</p>
+     * <p>If the camera device cannot apply the exact boost requested, it will reduce the
+     * boost to the nearest supported value.
+     * The final boost value used will be available in the output capture result.</p>
+     * <p>For devices that support post RAW sensitivity boost, the YUV/JPEG output images
+     * of such device will have the total sensitivity of
+     * <code>ACAMERA_SENSOR_SENSITIVITY * ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST / 100</code>
+     * The sensitivity of RAW format images will always be <code>ACAMERA_SENSOR_SENSITIVITY</code></p>
+     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST =                // int32
+            ACAMERA_CONTROL_START + 40,
+    /**
+     * <p>Allow camera device to enable zero-shutter-lag mode for requests with
+     * ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_control_enable_zsl_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>If enableZsl is <code>true</code>, the camera device may enable zero-shutter-lag mode for requests with
+     * STILL_CAPTURE capture intent. The camera device may use images captured in the past to
+     * produce output images for a zero-shutter-lag request. The result metadata including the
+     * ACAMERA_SENSOR_TIMESTAMP reflects the source frames used to produce output images.
+     * Therefore, the contents of the output images and the result metadata may be out of order
+     * compared to previous regular requests. enableZsl does not affect requests with other
+     * capture intents.</p>
+     * <p>For example, when requests are submitted in the following order:
+     *   Request A: enableZsl is <code>true</code>, ACAMERA_CONTROL_CAPTURE_INTENT is PREVIEW
+     *   Request B: enableZsl is <code>true</code>, ACAMERA_CONTROL_CAPTURE_INTENT is STILL_CAPTURE</p>
+     * <p>The output images for request B may have contents captured before the output images for
+     * request A, and the result metadata for request B may be older than the result metadata for
+     * request A.</p>
+     * <p>Note that when enableZsl is <code>true</code>, it is not guaranteed to get output images captured in the
+     * past for requests with STILL_CAPTURE capture intent.</p>
+     * <p>For applications targeting SDK versions O and newer, the value of enableZsl in
+     * TEMPLATE_STILL_CAPTURE template may be <code>true</code>. The value in other templates is always
+     * <code>false</code> if present.</p>
+     * <p>For applications targeting SDK versions older than O, the value of enableZsl in all
+     * capture templates is always <code>false</code> if present.</p>
+     * <p>For application-operated ZSL, use CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     * @see ACAMERA_SENSOR_TIMESTAMP
+     */
+    ACAMERA_CONTROL_ENABLE_ZSL =                                // byte (acamera_metadata_enum_android_control_enable_zsl_t)
+            ACAMERA_CONTROL_START + 41,
+    ACAMERA_CONTROL_END,
+
+    /**
+     * <p>Operation mode for edge
+     * enhancement.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_edge_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Edge enhancement improves sharpness and details in the captured image. OFF means
+     * no enhancement will be applied by the camera device.</p>
+     * <p>FAST/HIGH_QUALITY both mean camera device determined enhancement
+     * will be applied. HIGH_QUALITY mode indicates that the
+     * camera device will use the highest-quality enhancement algorithms,
+     * even if it slows down capture rate. FAST means the camera device will
+     * not slow down capture rate when applying edge enhancement. FAST may be the same as OFF if
+     * edge enhancement will slow down capture rate. Every output stream will have a similar
+     * amount of enhancement applied.</p>
+     * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular
+     * buffer of high-resolution images during preview and reprocess image(s) from that buffer
+     * into a final capture when triggered by the user. In this mode, the camera device applies
+     * edge enhancement to low-resolution streams (below maximum recording resolution) to
+     * maximize preview quality, but does not apply edge enhancement to high-resolution streams,
+     * since those will be reprocessed later if necessary.</p>
+     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera
+     * device will apply FAST/HIGH_QUALITY YUV-domain edge enhancement, respectively.
+     * The camera device may adjust its internal edge enhancement parameters for best
+     * image quality based on the android.reprocess.effectiveExposureFactor, if it is set.</p>
+     */
+    ACAMERA_EDGE_MODE =                                         // byte (acamera_metadata_enum_android_edge_mode_t)
+            ACAMERA_EDGE_START,
+    /**
+     * <p>List of edge enhancement modes for ACAMERA_EDGE_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_EDGE_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Full-capability camera devices must always support OFF; camera devices that support
+     * YUV_REPROCESSING or PRIVATE_REPROCESSING will list ZERO_SHUTTER_LAG; all devices will
+     * list FAST.</p>
+     */
+    ACAMERA_EDGE_AVAILABLE_EDGE_MODES =                         // byte[n]
+            ACAMERA_EDGE_START + 2,
+    ACAMERA_EDGE_END,
+
+    /**
+     * <p>The desired mode for for the camera device's flash control.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_flash_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>This control is only effective when flash unit is available
+     * (<code>ACAMERA_FLASH_INFO_AVAILABLE == true</code>).</p>
+     * <p>When this control is used, the ACAMERA_CONTROL_AE_MODE must be set to ON or OFF.
+     * Otherwise, the camera device auto-exposure related flash control (ON_AUTO_FLASH,
+     * ON_ALWAYS_FLASH, or ON_AUTO_FLASH_REDEYE) will override this control.</p>
+     * <p>When set to OFF, the camera device will not fire flash for this capture.</p>
+     * <p>When set to SINGLE, the camera device will fire flash regardless of the camera
+     * device's auto-exposure routine's result. When used in still capture case, this
+     * control should be used along with auto-exposure (AE) precapture metering sequence
+     * (ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER), otherwise, the image may be incorrectly exposed.</p>
+     * <p>When set to TORCH, the flash will be on continuously. This mode can be used
+     * for use cases such as preview, auto-focus assist, still capture, or video recording.</p>
+     * <p>The flash status will be reported by ACAMERA_FLASH_STATE in the capture result metadata.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_FLASH_INFO_AVAILABLE
+     * @see ACAMERA_FLASH_STATE
+     */
+    ACAMERA_FLASH_MODE =                                        // byte (acamera_metadata_enum_android_flash_mode_t)
+            ACAMERA_FLASH_START + 2,
+    /**
+     * <p>Current state of the flash
+     * unit.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_flash_state_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>When the camera device doesn't have flash unit
+     * (i.e. <code>ACAMERA_FLASH_INFO_AVAILABLE == false</code>), this state will always be UNAVAILABLE.
+     * Other states indicate the current flash status.</p>
+     * <p>In certain conditions, this will be available on LEGACY devices:</p>
+     * <ul>
+     * <li>Flash-less cameras always return UNAVAILABLE.</li>
+     * <li>Using ACAMERA_CONTROL_AE_MODE <code>==</code> ON_ALWAYS_FLASH
+     *    will always return FIRED.</li>
+     * <li>Using ACAMERA_FLASH_MODE <code>==</code> TORCH
+     *    will always return FIRED.</li>
+     * </ul>
+     * <p>In all other conditions the state will not be available on
+     * LEGACY devices (i.e. it will be <code>null</code>).</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_FLASH_INFO_AVAILABLE
+     * @see ACAMERA_FLASH_MODE
+     */
+    ACAMERA_FLASH_STATE =                                       // byte (acamera_metadata_enum_android_flash_state_t)
+            ACAMERA_FLASH_START + 5,
+    ACAMERA_FLASH_END,
+
+    /**
+     * <p>Whether this camera device has a
+     * flash unit.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_flash_info_available_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Will be <code>false</code> if no flash is available.</p>
+     * <p>If there is no flash unit, none of the flash controls do
+     * anything.</p>
+     */
+    ACAMERA_FLASH_INFO_AVAILABLE =                              // byte (acamera_metadata_enum_android_flash_info_available_t)
+            ACAMERA_FLASH_INFO_START,
+    ACAMERA_FLASH_INFO_END,
+
+    /**
+     * <p>Operational mode for hot pixel correction.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_hot_pixel_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Hotpixel correction interpolates out, or otherwise removes, pixels
+     * that do not accurately measure the incoming light (i.e. pixels that
+     * are stuck at an arbitrary value or are oversensitive).</p>
+     */
+    ACAMERA_HOT_PIXEL_MODE =                                    // byte (acamera_metadata_enum_android_hot_pixel_mode_t)
+            ACAMERA_HOT_PIXEL_START,
+    /**
+     * <p>List of hot pixel correction modes for ACAMERA_HOT_PIXEL_MODE that are supported by this
+     * camera device.</p>
+     *
+     * @see ACAMERA_HOT_PIXEL_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>FULL mode camera devices will always support FAST.</p>
+     */
+    ACAMERA_HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES =               // byte[n]
+            ACAMERA_HOT_PIXEL_START + 1,
+    ACAMERA_HOT_PIXEL_END,
+
+    /**
+     * <p>GPS coordinates to include in output JPEG
+     * EXIF.</p>
+     *
+     * <p>Type: double[3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     */
+    ACAMERA_JPEG_GPS_COORDINATES =                              // double[3]
+            ACAMERA_JPEG_START,
+    /**
+     * <p>32 characters describing GPS algorithm to
+     * include in EXIF.</p>
+     *
+     * <p>Type: byte</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     */
+    ACAMERA_JPEG_GPS_PROCESSING_METHOD =                        // byte
+            ACAMERA_JPEG_START + 1,
+    /**
+     * <p>Time GPS fix was made to include in
+     * EXIF.</p>
+     *
+     * <p>Type: int64</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     */
+    ACAMERA_JPEG_GPS_TIMESTAMP =                                // int64
+            ACAMERA_JPEG_START + 2,
+    /**
+     * <p>The orientation for a JPEG image.</p>
+     *
+     * <p>Type: int32</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>The clockwise rotation angle in degrees, relative to the orientation
+     * to the camera, that the JPEG picture needs to be rotated by, to be viewed
+     * upright.</p>
+     * <p>Camera devices may either encode this value into the JPEG EXIF header, or
+     * rotate the image data to match this orientation. When the image data is rotated,
+     * the thumbnail data will also be rotated.</p>
+     * <p>Note that this orientation is relative to the orientation of the camera sensor, given
+     * by ACAMERA_SENSOR_ORIENTATION.</p>
+     * <p>To translate from the device orientation given by the Android sensor APIs, the following
+     * sample code may be used:</p>
+     * <pre><code>private int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) {
+     *     if (deviceOrientation == android.view.OrientationEventListener.ORIENTATION_UNKNOWN) return 0;
+     *     int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION);
+     *
+     *     // Round device orientation to a multiple of 90
+     *     deviceOrientation = (deviceOrientation + 45) / 90 * 90;
+     *
+     *     // Reverse device orientation for front-facing cameras
+     *     boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT;
+     *     if (facingFront) deviceOrientation = -deviceOrientation;
+     *
+     *     // Calculate desired JPEG orientation relative to camera orientation to make
+     *     // the image upright relative to the device orientation
+     *     int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360;
+     *
+     *     return jpegOrientation;
+     * }
+     * </code></pre>
+     *
+     * @see ACAMERA_SENSOR_ORIENTATION
+     */
+    ACAMERA_JPEG_ORIENTATION =                                  // int32
+            ACAMERA_JPEG_START + 3,
+    /**
+     * <p>Compression quality of the final JPEG
+     * image.</p>
+     *
+     * <p>Type: byte</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>85-95 is typical usage range.</p>
+     */
+    ACAMERA_JPEG_QUALITY =                                      // byte
+            ACAMERA_JPEG_START + 4,
+    /**
+     * <p>Compression quality of JPEG
+     * thumbnail.</p>
+     *
+     * <p>Type: byte</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     */
+    ACAMERA_JPEG_THUMBNAIL_QUALITY =                            // byte
+            ACAMERA_JPEG_START + 5,
+    /**
+     * <p>Resolution of embedded JPEG thumbnail.</p>
+     *
+     * <p>Type: int32[2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>When set to (0, 0) value, the JPEG EXIF will not contain thumbnail,
+     * but the captured JPEG will still be a valid image.</p>
+     * <p>For best results, when issuing a request for a JPEG image, the thumbnail size selected
+     * should have the same aspect ratio as the main JPEG output.</p>
+     * <p>If the thumbnail image aspect ratio differs from the JPEG primary image aspect
+     * ratio, the camera device creates the thumbnail by cropping it from the primary image.
+     * For example, if the primary image has 4:3 aspect ratio, the thumbnail image has
+     * 16:9 aspect ratio, the primary image will be cropped vertically (letterbox) to
+     * generate the thumbnail image. The thumbnail image will always have a smaller Field
+     * Of View (FOV) than the primary image when aspect ratios differ.</p>
+     * <p>When an ACAMERA_JPEG_ORIENTATION of non-zero degree is requested,
+     * the camera device will handle thumbnail rotation in one of the following ways:</p>
+     * <ul>
+     * <li>Set the
+     *   <a href="https://developer.android.com/reference/android/media/ExifInterface.html#TAG_ORIENTATION">EXIF orientation flag</a>
+     *   and keep jpeg and thumbnail image data unrotated.</li>
+     * <li>Rotate the jpeg and thumbnail image data and not set
+     *   <a href="https://developer.android.com/reference/android/media/ExifInterface.html#TAG_ORIENTATION">EXIF orientation flag</a>.
+     *   In this case, LIMITED or FULL hardware level devices will report rotated thumnail size
+     *   in capture result, so the width and height will be interchanged if 90 or 270 degree
+     *   orientation is requested. LEGACY device will always report unrotated thumbnail size.</li>
+     * </ul>
+     *
+     * @see ACAMERA_JPEG_ORIENTATION
+     */
+    ACAMERA_JPEG_THUMBNAIL_SIZE =                               // int32[2]
+            ACAMERA_JPEG_START + 6,
+    /**
+     * <p>List of JPEG thumbnail sizes for ACAMERA_JPEG_THUMBNAIL_SIZE supported by this
+     * camera device.</p>
+     *
+     * @see ACAMERA_JPEG_THUMBNAIL_SIZE
+     *
+     * <p>Type: int32[2*n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This list will include at least one non-zero resolution, plus <code>(0,0)</code> for indicating no
+     * thumbnail should be generated.</p>
+     * <p>Below condiditions will be satisfied for this size list:</p>
+     * <ul>
+     * <li>The sizes will be sorted by increasing pixel area (width x height).
+     * If several resolutions have the same area, they will be sorted by increasing width.</li>
+     * <li>The aspect ratio of the largest thumbnail size will be same as the
+     * aspect ratio of largest JPEG output size in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS.
+     * The largest size is defined as the size that has the largest pixel area
+     * in a given size list.</li>
+     * <li>Each output JPEG size in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS will have at least
+     * one corresponding size that has the same aspect ratio in availableThumbnailSizes,
+     * and vice versa.</li>
+     * <li>All non-<code>(0, 0)</code> sizes will have non-zero widths and heights.</li>
+     * </ul>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
+     */
+    ACAMERA_JPEG_AVAILABLE_THUMBNAIL_SIZES =                    // int32[2*n]
+            ACAMERA_JPEG_START + 7,
+    ACAMERA_JPEG_END,
+
+    /**
+     * <p>The desired lens aperture size, as a ratio of lens focal length to the
+     * effective aperture diameter.</p>
+     *
+     * <p>Type: float</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Setting this value is only supported on the camera devices that have a variable
+     * aperture lens.</p>
+     * <p>When this is supported and ACAMERA_CONTROL_AE_MODE is OFF,
+     * this can be set along with ACAMERA_SENSOR_EXPOSURE_TIME,
+     * ACAMERA_SENSOR_SENSITIVITY, and ACAMERA_SENSOR_FRAME_DURATION
+     * to achieve manual exposure control.</p>
+     * <p>The requested aperture value may take several frames to reach the
+     * requested value; the camera device will report the current (intermediate)
+     * aperture size in capture result metadata while the aperture is changing.
+     * While the aperture is still changing, ACAMERA_LENS_STATE will be set to MOVING.</p>
+     * <p>When this is supported and ACAMERA_CONTROL_AE_MODE is one of
+     * the ON modes, this will be overridden by the camera device
+     * auto-exposure algorithm, the overridden values are then provided
+     * back to the user in the corresponding result.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_LENS_STATE
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_LENS_APERTURE =                                     // float
+            ACAMERA_LENS_START,
+    /**
+     * <p>The desired setting for the lens neutral density filter(s).</p>
+     *
+     * <p>Type: float</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>This control will not be supported on most camera devices.</p>
+     * <p>Lens filters are typically used to lower the amount of light the
+     * sensor is exposed to (measured in steps of EV). As used here, an EV
+     * step is the standard logarithmic representation, which are
+     * non-negative, and inversely proportional to the amount of light
+     * hitting the sensor.  For example, setting this to 0 would result
+     * in no reduction of the incoming light, and setting this to 2 would
+     * mean that the filter is set to reduce incoming light by two stops
+     * (allowing 1/4 of the prior amount of light to the sensor).</p>
+     * <p>It may take several frames before the lens filter density changes
+     * to the requested value. While the filter density is still changing,
+     * ACAMERA_LENS_STATE will be set to MOVING.</p>
+     *
+     * @see ACAMERA_LENS_STATE
+     */
+    ACAMERA_LENS_FILTER_DENSITY =                               // float
+            ACAMERA_LENS_START + 1,
+    /**
+     * <p>The desired lens focal length; used for optical zoom.</p>
+     *
+     * <p>Type: float</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>This setting controls the physical focal length of the camera
+     * device's lens. Changing the focal length changes the field of
+     * view of the camera device, and is usually used for optical zoom.</p>
+     * <p>Like ACAMERA_LENS_FOCUS_DISTANCE and ACAMERA_LENS_APERTURE, this
+     * setting won't be applied instantaneously, and it may take several
+     * frames before the lens can change to the requested focal length.
+     * While the focal length is still changing, ACAMERA_LENS_STATE will
+     * be set to MOVING.</p>
+     * <p>Optical zoom will not be supported on most devices.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_LENS_STATE
+     */
+    ACAMERA_LENS_FOCAL_LENGTH =                                 // float
+            ACAMERA_LENS_START + 2,
+    /**
+     * <p>Desired distance to plane of sharpest focus,
+     * measured from frontmost surface of the lens.</p>
+     *
+     * <p>Type: float</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Should be zero for fixed-focus cameras</p>
+     */
+    ACAMERA_LENS_FOCUS_DISTANCE =                               // float
+            ACAMERA_LENS_START + 3,
+    /**
+     * <p>Sets whether the camera device uses optical image stabilization (OIS)
+     * when capturing images.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_lens_optical_stabilization_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>OIS is used to compensate for motion blur due to small
+     * movements of the camera during capture. Unlike digital image
+     * stabilization (ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE), OIS
+     * makes use of mechanical elements to stabilize the camera
+     * sensor, and thus allows for longer exposure times before
+     * camera shake becomes apparent.</p>
+     * <p>Switching between different optical stabilization modes may take several
+     * frames to initialize, the camera device will report the current mode in
+     * capture result metadata. For example, When "ON" mode is requested, the
+     * optical stabilization modes in the first several capture results may still
+     * be "OFF", and it will become "ON" when the initialization is done.</p>
+     * <p>If a camera device supports both OIS and digital image stabilization
+     * (ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE), turning both modes on may produce undesirable
+     * interaction, so it is recommended not to enable both at the same time.</p>
+     * <p>Not all devices will support OIS; see
+     * ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION for
+     * available controls.</p>
+     *
+     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+     * @see ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION
+     */
+    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE =                   // byte (acamera_metadata_enum_android_lens_optical_stabilization_mode_t)
+            ACAMERA_LENS_START + 4,
+    /**
+     * <p>Direction the camera faces relative to
+     * device screen.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_lens_facing_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     */
+    ACAMERA_LENS_FACING =                                       // byte (acamera_metadata_enum_android_lens_facing_t)
+            ACAMERA_LENS_START + 5,
+    /**
+     * <p>The orientation of the camera relative to the sensor
+     * coordinate system.</p>
+     *
+     * <p>Type: float[4]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>The four coefficients that describe the quaternion
+     * rotation from the Android sensor coordinate system to a
+     * camera-aligned coordinate system where the X-axis is
+     * aligned with the long side of the image sensor, the Y-axis
+     * is aligned with the short side of the image sensor, and
+     * the Z-axis is aligned with the optical axis of the sensor.</p>
+     * <p>To convert from the quaternion coefficients <code>(x,y,z,w)</code>
+     * to the axis of rotation <code>(a_x, a_y, a_z)</code> and rotation
+     * amount <code>theta</code>, the following formulas can be used:</p>
+     * <pre><code> theta = 2 * acos(w)
+     * a_x = x / sin(theta/2)
+     * a_y = y / sin(theta/2)
+     * a_z = z / sin(theta/2)
+     * </code></pre>
+     * <p>To create a 3x3 rotation matrix that applies the rotation
+     * defined by this quaternion, the following matrix can be
+     * used:</p>
+     * <pre><code>R = [ 1 - 2y^2 - 2z^2,       2xy - 2zw,       2xz + 2yw,
+     *            2xy + 2zw, 1 - 2x^2 - 2z^2,       2yz - 2xw,
+     *            2xz - 2yw,       2yz + 2xw, 1 - 2x^2 - 2y^2 ]
+     * </code></pre>
+     * <p>This matrix can then be used to apply the rotation to a
+     *  column vector point with</p>
+     * <p><code>p' = Rp</code></p>
+     * <p>where <code>p</code> is in the device sensor coordinate system, and
+     *  <code>p'</code> is in the camera-oriented coordinate system.</p>
+     */
+    ACAMERA_LENS_POSE_ROTATION =                                // float[4]
+            ACAMERA_LENS_START + 6,
+    /**
+     * <p>Position of the camera optical center.</p>
+     *
+     * <p>Type: float[3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>The position of the camera device's lens optical center,
+     * as a three-dimensional vector <code>(x,y,z)</code>, relative to the
+     * optical center of the largest camera device facing in the
+     * same direction as this camera, in the
+     * <a href="https://developer.android.com/reference/android/hardware/SensorEvent.html">Android sensor coordinate axes</a>.
+     * Note that only the axis definitions are shared with
+     * the sensor coordinate system, but not the origin.</p>
+     * <p>If this device is the largest or only camera device with a
+     * given facing, then this position will be <code>(0, 0, 0)</code>; a
+     * camera device with a lens optical center located 3 cm from
+     * the main sensor along the +X axis (to the right from the
+     * user's perspective) will report <code>(0.03, 0, 0)</code>.</p>
+     * <p>To transform a pixel coordinates between two cameras
+     * facing the same direction, first the source camera
+     * ACAMERA_LENS_RADIAL_DISTORTION must be corrected for.  Then
+     * the source camera ACAMERA_LENS_INTRINSIC_CALIBRATION needs
+     * to be applied, followed by the ACAMERA_LENS_POSE_ROTATION
+     * of the source camera, the translation of the source camera
+     * relative to the destination camera, the
+     * ACAMERA_LENS_POSE_ROTATION of the destination camera, and
+     * finally the inverse of ACAMERA_LENS_INTRINSIC_CALIBRATION
+     * of the destination camera. This obtains a
+     * radial-distortion-free coordinate in the destination
+     * camera pixel coordinates.</p>
+     * <p>To compare this against a real image from the destination
+     * camera, the destination camera image then needs to be
+     * corrected for radial distortion before comparison or
+     * sampling.</p>
+     *
+     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
+     * @see ACAMERA_LENS_POSE_ROTATION
+     * @see ACAMERA_LENS_RADIAL_DISTORTION
+     */
+    ACAMERA_LENS_POSE_TRANSLATION =                             // float[3]
+            ACAMERA_LENS_START + 7,
+    /**
+     * <p>The range of scene distances that are in
+     * sharp focus (depth of field).</p>
+     *
+     * <p>Type: float[2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>If variable focus not supported, can still report
+     * fixed depth of field range</p>
+     */
+    ACAMERA_LENS_FOCUS_RANGE =                                  // float[2]
+            ACAMERA_LENS_START + 8,
+    /**
+     * <p>Current lens status.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_lens_state_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>For lens parameters ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
+     * ACAMERA_LENS_FILTER_DENSITY and ACAMERA_LENS_APERTURE, when changes are requested,
+     * they may take several frames to reach the requested values. This state indicates
+     * the current status of the lens parameters.</p>
+     * <p>When the state is STATIONARY, the lens parameters are not changing. This could be
+     * either because the parameters are all fixed, or because the lens has had enough
+     * time to reach the most recently-requested values.
+     * If all these lens parameters are not changable for a camera device, as listed below:</p>
+     * <ul>
+     * <li>Fixed focus (<code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE == 0</code>), which means
+     * ACAMERA_LENS_FOCUS_DISTANCE parameter will always be 0.</li>
+     * <li>Fixed focal length (ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS contains single value),
+     * which means the optical zoom is not supported.</li>
+     * <li>No ND filter (ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES contains only 0).</li>
+     * <li>Fixed aperture (ACAMERA_LENS_INFO_AVAILABLE_APERTURES contains single value).</li>
+     * </ul>
+     * <p>Then this state will always be STATIONARY.</p>
+     * <p>When the state is MOVING, it indicates that at least one of the lens parameters
+     * is changing.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     * @see ACAMERA_LENS_FILTER_DENSITY
+     * @see ACAMERA_LENS_FOCAL_LENGTH
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_LENS_INFO_AVAILABLE_APERTURES
+     * @see ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES
+     * @see ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_LENS_STATE =                                        // byte (acamera_metadata_enum_android_lens_state_t)
+            ACAMERA_LENS_START + 9,
+    /**
+     * <p>The parameters for this camera device's intrinsic
+     * calibration.</p>
+     *
+     * <p>Type: float[5]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>The five calibration parameters that describe the
+     * transform from camera-centric 3D coordinates to sensor
+     * pixel coordinates:</p>
+     * <pre><code>[f_x, f_y, c_x, c_y, s]
+     * </code></pre>
+     * <p>Where <code>f_x</code> and <code>f_y</code> are the horizontal and vertical
+     * focal lengths, <code>[c_x, c_y]</code> is the position of the optical
+     * axis, and <code>s</code> is a skew parameter for the sensor plane not
+     * being aligned with the lens plane.</p>
+     * <p>These are typically used within a transformation matrix K:</p>
+     * <pre><code>K = [ f_x,   s, c_x,
+     *        0, f_y, c_y,
+     *        0    0,   1 ]
+     * </code></pre>
+     * <p>which can then be combined with the camera pose rotation
+     * <code>R</code> and translation <code>t</code> (ACAMERA_LENS_POSE_ROTATION and
+     * ACAMERA_LENS_POSE_TRANSLATION, respective) to calculate the
+     * complete transform from world coordinates to pixel
+     * coordinates:</p>
+     * <pre><code>P = [ K 0   * [ R t
+     *      0 1 ]     0 1 ]
+     * </code></pre>
+     * <p>and with <code>p_w</code> being a point in the world coordinate system
+     * and <code>p_s</code> being a point in the camera active pixel array
+     * coordinate system, and with the mapping including the
+     * homogeneous division by z:</p>
+     * <pre><code> p_h = (x_h, y_h, z_h) = P p_w
+     * p_s = p_h / z_h
+     * </code></pre>
+     * <p>so <code>[x_s, y_s]</code> is the pixel coordinates of the world
+     * point, <code>z_s = 1</code>, and <code>w_s</code> is a measurement of disparity
+     * (depth) in pixel coordinates.</p>
+     * <p>Note that the coordinate system for this transform is the
+     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE system,
+     * where <code>(0,0)</code> is the top-left of the
+     * preCorrectionActiveArraySize rectangle. Once the pose and
+     * intrinsic calibration transforms have been applied to a
+     * world point, then the ACAMERA_LENS_RADIAL_DISTORTION
+     * transform needs to be applied, and the result adjusted to
+     * be in the ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE coordinate
+     * system (where <code>(0, 0)</code> is the top-left of the
+     * activeArraySize rectangle), to determine the final pixel
+     * coordinate of the world point for processed (non-RAW)
+     * output buffers.</p>
+     *
+     * @see ACAMERA_LENS_POSE_ROTATION
+     * @see ACAMERA_LENS_POSE_TRANSLATION
+     * @see ACAMERA_LENS_RADIAL_DISTORTION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_LENS_INTRINSIC_CALIBRATION =                        // float[5]
+            ACAMERA_LENS_START + 10,
+    /**
+     * <p>The correction coefficients to correct for this camera device's
+     * radial and tangential lens distortion.</p>
+     *
+     * <p>Type: float[6]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>Four radial distortion coefficients <code>[kappa_0, kappa_1, kappa_2,
+     * kappa_3]</code> and two tangential distortion coefficients
+     * <code>[kappa_4, kappa_5]</code> that can be used to correct the
+     * lens's geometric distortion with the mapping equations:</p>
+     * <pre><code> x_c = x_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) +
+     *        kappa_4 * (2 * x_i * y_i) + kappa_5 * ( r^2 + 2 * x_i^2 )
+     *  y_c = y_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) +
+     *        kappa_5 * (2 * x_i * y_i) + kappa_4 * ( r^2 + 2 * y_i^2 )
+     * </code></pre>
+     * <p>Here, <code>[x_c, y_c]</code> are the coordinates to sample in the
+     * input image that correspond to the pixel values in the
+     * corrected image at the coordinate <code>[x_i, y_i]</code>:</p>
+     * <pre><code> correctedImage(x_i, y_i) = sample_at(x_c, y_c, inputImage)
+     * </code></pre>
+     * <p>The pixel coordinates are defined in a normalized
+     * coordinate system related to the
+     * ACAMERA_LENS_INTRINSIC_CALIBRATION calibration fields.
+     * Both <code>[x_i, y_i]</code> and <code>[x_c, y_c]</code> have <code>(0,0)</code> at the
+     * lens optical center <code>[c_x, c_y]</code>. The maximum magnitudes
+     * of both x and y coordinates are normalized to be 1 at the
+     * edge further from the optical center, so the range
+     * for both dimensions is <code>-1 &lt;= x &lt;= 1</code>.</p>
+     * <p>Finally, <code>r</code> represents the radial distance from the
+     * optical center, <code>r^2 = x_i^2 + y_i^2</code>, and its magnitude
+     * is therefore no larger than <code>|r| &lt;= sqrt(2)</code>.</p>
+     * <p>The distortion model used is the Brown-Conrady model.</p>
+     *
+     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
+     */
+    ACAMERA_LENS_RADIAL_DISTORTION =                            // float[6]
+            ACAMERA_LENS_START + 11,
+    ACAMERA_LENS_END,
+
+    /**
+     * <p>List of aperture size values for ACAMERA_LENS_APERTURE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     *
+     * <p>Type: float[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If the camera device doesn't support a variable lens aperture,
+     * this list will contain only one value, which is the fixed aperture size.</p>
+     * <p>If the camera device supports a variable aperture, the aperture values
+     * in this list will be sorted in ascending order.</p>
+     */
+    ACAMERA_LENS_INFO_AVAILABLE_APERTURES =                     // float[n]
+            ACAMERA_LENS_INFO_START,
+    /**
+     * <p>List of neutral density filter values for
+     * ACAMERA_LENS_FILTER_DENSITY that are supported by this camera device.</p>
+     *
+     * @see ACAMERA_LENS_FILTER_DENSITY
+     *
+     * <p>Type: float[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If a neutral density filter is not supported by this camera device,
+     * this list will contain only 0. Otherwise, this list will include every
+     * filter density supported by the camera device, in ascending order.</p>
+     */
+    ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES =              // float[n]
+            ACAMERA_LENS_INFO_START + 1,
+    /**
+     * <p>List of focal lengths for ACAMERA_LENS_FOCAL_LENGTH that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_LENS_FOCAL_LENGTH
+     *
+     * <p>Type: float[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If optical zoom is not supported, this list will only contain
+     * a single value corresponding to the fixed focal length of the
+     * device. Otherwise, this list will include every focal length supported
+     * by the camera device, in ascending order.</p>
+     */
+    ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS =                 // float[n]
+            ACAMERA_LENS_INFO_START + 2,
+    /**
+     * <p>List of optical image stabilization (OIS) modes for
+     * ACAMERA_LENS_OPTICAL_STABILIZATION_MODE that are supported by this camera device.</p>
+     *
+     * @see ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If OIS is not supported by a given camera device, this list will
+     * contain only OFF.</p>
+     */
+    ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION =         // byte[n]
+            ACAMERA_LENS_INFO_START + 3,
+    /**
+     * <p>Hyperfocal distance for this lens.</p>
+     *
+     * <p>Type: float</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If the lens is not fixed focus, the camera device will report this
+     * field when ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION is APPROXIMATE or CALIBRATED.</p>
+     *
+     * @see ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
+     */
+    ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE =                     // float
+            ACAMERA_LENS_INFO_START + 4,
+    /**
+     * <p>Shortest distance from frontmost surface
+     * of the lens that can be brought into sharp focus.</p>
+     *
+     * <p>Type: float</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If the lens is fixed-focus, this will be
+     * 0.</p>
+     */
+    ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE =                  // float
+            ACAMERA_LENS_INFO_START + 5,
+    /**
+     * <p>Dimensions of lens shading map.</p>
+     *
+     * <p>Type: int32[2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>The map should be on the order of 30-40 rows and columns, and
+     * must be smaller than 64x64.</p>
+     */
+    ACAMERA_LENS_INFO_SHADING_MAP_SIZE =                        // int32[2]
+            ACAMERA_LENS_INFO_START + 6,
+    /**
+     * <p>The lens focus distance calibration quality.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_lens_info_focus_distance_calibration_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>The lens focus distance calibration quality determines the reliability of
+     * focus related metadata entries, i.e. ACAMERA_LENS_FOCUS_DISTANCE,
+     * ACAMERA_LENS_FOCUS_RANGE, ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE, and
+     * ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE.</p>
+     * <p>APPROXIMATE and CALIBRATED devices report the focus metadata in
+     * units of diopters (1/meter), so <code>0.0f</code> represents focusing at infinity,
+     * and increasing positive numbers represent focusing closer and closer
+     * to the camera device. The focus distance control also uses diopters
+     * on these devices.</p>
+     * <p>UNCALIBRATED devices do not use units that are directly comparable
+     * to any real physical measurement, but <code>0.0f</code> still represents farthest
+     * focus, and ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE represents the
+     * nearest focus the device can achieve.</p>
+     *
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_LENS_FOCUS_RANGE
+     * @see ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION =              // byte (acamera_metadata_enum_android_lens_info_focus_distance_calibration_t)
+            ACAMERA_LENS_INFO_START + 7,
+    ACAMERA_LENS_INFO_END,
+
+    /**
+     * <p>Mode of operation for the noise reduction algorithm.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_noise_reduction_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>The noise reduction algorithm attempts to improve image quality by removing
+     * excessive noise added by the capture process, especially in dark conditions.</p>
+     * <p>OFF means no noise reduction will be applied by the camera device, for both raw and
+     * YUV domain.</p>
+     * <p>MINIMAL means that only sensor raw domain basic noise reduction is enabled ,to remove
+     * demosaicing or other processing artifacts. For YUV_REPROCESSING, MINIMAL is same as OFF.
+     * This mode is optional, may not be support by all devices. The application should check
+     * ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES before using it.</p>
+     * <p>FAST/HIGH_QUALITY both mean camera device determined noise filtering
+     * will be applied. HIGH_QUALITY mode indicates that the camera device
+     * will use the highest-quality noise filtering algorithms,
+     * even if it slows down capture rate. FAST means the camera device will not
+     * slow down capture rate when applying noise filtering. FAST may be the same as MINIMAL if
+     * MINIMAL is listed, or the same as OFF if any noise filtering will slow down capture rate.
+     * Every output stream will have a similar amount of enhancement applied.</p>
+     * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular
+     * buffer of high-resolution images during preview and reprocess image(s) from that buffer
+     * into a final capture when triggered by the user. In this mode, the camera device applies
+     * noise reduction to low-resolution streams (below maximum recording resolution) to maximize
+     * preview quality, but does not apply noise reduction to high-resolution streams, since
+     * those will be reprocessed later if necessary.</p>
+     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera device
+     * will apply FAST/HIGH_QUALITY YUV domain noise reduction, respectively. The camera device
+     * may adjust the noise reduction parameters for best image quality based on the
+     * android.reprocess.effectiveExposureFactor if it is set.</p>
+     *
+     * @see ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES
+     */
+    ACAMERA_NOISE_REDUCTION_MODE =                              // byte (acamera_metadata_enum_android_noise_reduction_mode_t)
+            ACAMERA_NOISE_REDUCTION_START,
+    /**
+     * <p>List of noise reduction modes for ACAMERA_NOISE_REDUCTION_MODE that are supported
+     * by this camera device.</p>
+     *
+     * @see ACAMERA_NOISE_REDUCTION_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Full-capability camera devices will always support OFF and FAST.</p>
+     * <p>Camera devices that support YUV_REPROCESSING or PRIVATE_REPROCESSING will support
+     * ZERO_SHUTTER_LAG.</p>
+     * <p>Legacy-capability camera devices will only support FAST mode.</p>
+     */
+    ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES =   // byte[n]
+            ACAMERA_NOISE_REDUCTION_START + 2,
+    ACAMERA_NOISE_REDUCTION_END,
+
+    /**
+     * <p>The maximum numbers of different types of output streams
+     * that can be configured and used simultaneously by a camera device.</p>
+     *
+     * <p>Type: int32[3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This is a 3 element tuple that contains the max number of output simultaneous
+     * streams for raw sensor, processed (but not stalling), and processed (and stalling)
+     * formats respectively. For example, assuming that JPEG is typically a processed and
+     * stalling stream, if max raw sensor format output stream number is 1, max YUV streams
+     * number is 3, and max JPEG stream number is 2, then this tuple should be <code>(1, 3, 2)</code>.</p>
+     * <p>This lists the upper bound of the number of output streams supported by
+     * the camera device. Using more streams simultaneously may require more hardware and
+     * CPU resources that will consume more power. The image format for an output stream can
+     * be any supported format provided by ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS.
+     * The formats defined in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS can be catergorized
+     * into the 3 stream types as below:</p>
+     * <ul>
+     * <li>Processed (but stalling): any non-RAW format with a stallDurations &gt; 0.
+     *   Typically {@link AIMAGE_FORMAT_JPEG} format.</li>
+     * <li>Raw formats: {@link AIMAGE_FORMAT_RAW16}, {@link AIMAGE_FORMAT_RAW10}, or
+     *   {@link AIMAGE_FORMAT_RAW12}.</li>
+     * <li>Processed (but not-stalling): any non-RAW format without a stall duration.
+     *   Typically {@link AIMAGE_FORMAT_YUV_420_888}.</li>
+     * </ul>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
+     */
+    ACAMERA_REQUEST_MAX_NUM_OUTPUT_STREAMS =                    // int32[3]
+            ACAMERA_REQUEST_START + 6,
+    /**
+     * <p>Specifies the number of pipeline stages the frame went
+     * through from when it was exposed to when the final completed result
+     * was available to the framework.</p>
+     *
+     * <p>Type: byte</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>Depending on what settings are used in the request, and
+     * what streams are configured, the data may undergo less processing,
+     * and some pipeline stages skipped.</p>
+     * <p>See ACAMERA_REQUEST_PIPELINE_MAX_DEPTH for more details.</p>
+     *
+     * @see ACAMERA_REQUEST_PIPELINE_MAX_DEPTH
+     */
+    ACAMERA_REQUEST_PIPELINE_DEPTH =                            // byte
+            ACAMERA_REQUEST_START + 9,
+    /**
+     * <p>Specifies the number of maximum pipeline stages a frame
+     * has to go through from when it's exposed to when it's available
+     * to the framework.</p>
+     *
+     * <p>Type: byte</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>A typical minimum value for this is 2 (one stage to expose,
+     * one stage to readout) from the sensor. The ISP then usually adds
+     * its own stages to do custom HW processing. Further stages may be
+     * added by SW processing.</p>
+     * <p>Depending on what settings are used (e.g. YUV, JPEG) and what
+     * processing is enabled (e.g. face detection), the actual pipeline
+     * depth (specified by ACAMERA_REQUEST_PIPELINE_DEPTH) may be less than
+     * the max pipeline depth.</p>
+     * <p>A pipeline depth of X stages is equivalent to a pipeline latency of
+     * X frame intervals.</p>
+     * <p>This value will normally be 8 or less, however, for high speed capture session,
+     * the max pipeline depth will be up to 8 x size of high speed capture request list.</p>
+     *
+     * @see ACAMERA_REQUEST_PIPELINE_DEPTH
+     */
+    ACAMERA_REQUEST_PIPELINE_MAX_DEPTH =                        // byte
+            ACAMERA_REQUEST_START + 10,
+    /**
+     * <p>Defines how many sub-components
+     * a result will be composed of.</p>
+     *
+     * <p>Type: int32</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>In order to combat the pipeline latency, partial results
+     * may be delivered to the application layer from the camera device as
+     * soon as they are available.</p>
+     * <p>Optional; defaults to 1. A value of 1 means that partial
+     * results are not supported, and only the final TotalCaptureResult will
+     * be produced by the camera device.</p>
+     * <p>A typical use case for this might be: after requesting an
+     * auto-focus (AF) lock the new AF state might be available 50%
+     * of the way through the pipeline.  The camera device could
+     * then immediately dispatch this state via a partial result to
+     * the application, and the rest of the metadata via later
+     * partial results.</p>
+     */
+    ACAMERA_REQUEST_PARTIAL_RESULT_COUNT =                      // int32
+            ACAMERA_REQUEST_START + 11,
+    /**
+     * <p>List of capabilities that this camera device
+     * advertises as fully supporting.</p>
+     *
+     * <p>Type: byte[n] (acamera_metadata_enum_android_request_available_capabilities_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>A capability is a contract that the camera device makes in order
+     * to be able to satisfy one or more use cases.</p>
+     * <p>Listing a capability guarantees that the whole set of features
+     * required to support a common use will all be available.</p>
+     * <p>Using a subset of the functionality provided by an unsupported
+     * capability may be possible on a specific camera device implementation;
+     * to do this query each of ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS,
+     * ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS,
+     * ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS.</p>
+     * <p>The following capabilities are guaranteed to be available on
+     * ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL <code>==</code> FULL devices:</p>
+     * <ul>
+     * <li>MANUAL_SENSOR</li>
+     * <li>MANUAL_POST_PROCESSING</li>
+     * </ul>
+     * <p>Other capabilities may be available on either FULL or LIMITED
+     * devices, but the application should query this key to be sure.</p>
+     *
+     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+     * @see ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS
+     * @see ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS
+     * @see ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES =                    // byte[n] (acamera_metadata_enum_android_request_available_capabilities_t)
+            ACAMERA_REQUEST_START + 12,
+    /**
+     * <p>A list of all keys that the camera device has available
+     * to use with {@link ACaptureRequest}.</p>
+     *
+     * <p>Type: int32[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Attempting to set a key into a CaptureRequest that is not
+     * listed here will result in an invalid request and will be rejected
+     * by the camera device.</p>
+     * <p>This field can be used to query the feature set of a camera device
+     * at a more granular level than capabilities. This is especially
+     * important for optional keys that are not listed under any capability
+     * in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS =                    // int32[n]
+            ACAMERA_REQUEST_START + 13,
+    /**
+     * <p>A list of all keys that the camera device has available
+     * to query with {@link ACameraMetadata} from
+     * {@link ACameraCaptureSession_captureCallback_result}.</p>
+     *
+     * <p>Type: int32[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Attempting to get a key from a CaptureResult that is not
+     * listed here will always return a <code>null</code> value. Getting a key from
+     * a CaptureResult that is listed here will generally never return a <code>null</code>
+     * value.</p>
+     * <p>The following keys may return <code>null</code> unless they are enabled:</p>
+     * <ul>
+     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP (non-null iff ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE == ON)</li>
+     * </ul>
+     * <p>(Those sometimes-null keys will nevertheless be listed here
+     * if they are available.)</p>
+     * <p>This field can be used to query the feature set of a camera device
+     * at a more granular level than capabilities. This is especially
+     * important for optional keys that are not listed under any capability
+     * in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+     */
+    ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS =                     // int32[n]
+            ACAMERA_REQUEST_START + 14,
+    /**
+     * <p>A list of all keys that the camera device has available
+     * to query with {@link ACameraMetadata} from
+     * {@link ACameraManager_getCameraCharacteristics}.</p>
+     *
+     * <p>Type: int32[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This entry follows the same rules as
+     * ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS (except that it applies for
+     * CameraCharacteristics instead of CaptureResult). See above for more
+     * details.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS
+     */
+    ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS =            // int32[n]
+            ACAMERA_REQUEST_START + 15,
+    ACAMERA_REQUEST_END,
+
+    /**
+     * <p>The desired region of the sensor to read out for this capture.</p>
+     *
+     * <p>Type: int32[4]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>This control can be used to implement digital zoom.</p>
+     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+     * <p>The crop region coordinate system is based off
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with <code>(0, 0)</code> being the
+     * top-left corner of the sensor active array.</p>
+     * <p>Output streams use this rectangle to produce their output,
+     * cropping to a smaller region if necessary to maintain the
+     * stream's aspect ratio, then scaling the sensor input to
+     * match the output's configured resolution.</p>
+     * <p>The crop region is applied after the RAW to other color
+     * space (e.g. YUV) conversion. Since raw streams
+     * (e.g. RAW16) don't have the conversion stage, they are not
+     * croppable. The crop region will be ignored by raw streams.</p>
+     * <p>For non-raw streams, any additional per-stream cropping will
+     * be done to maximize the final pixel area of the stream.</p>
+     * <p>For example, if the crop region is set to a 4:3 aspect
+     * ratio, then 4:3 streams will use the exact crop
+     * region. 16:9 streams will further crop vertically
+     * (letterbox).</p>
+     * <p>Conversely, if the crop region is set to a 16:9, then 4:3
+     * outputs will crop horizontally (pillarbox), and 16:9
+     * streams will match exactly. These additional crops will
+     * be centered within the crop region.</p>
+     * <p>The width and height of the crop region cannot
+     * be set to be smaller than
+     * <code>floor( activeArraySize.width / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code> and
+     * <code>floor( activeArraySize.height / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code>, respectively.</p>
+     * <p>The camera device may adjust the crop region to account
+     * for rounding and other hardware requirements; the final
+     * crop region used will be included in the output capture
+     * result.</p>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SCALER_CROP_REGION =                                // int32[4]
+            ACAMERA_SCALER_START,
+    /**
+     * <p>The maximum ratio between both active area width
+     * and crop region width, and active area height and
+     * crop region height, for ACAMERA_SCALER_CROP_REGION.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     *
+     * <p>Type: float</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This represents the maximum amount of zooming possible by
+     * the camera device, or equivalently, the minimum cropping
+     * window size.</p>
+     * <p>Crop regions that have a width or height that is smaller
+     * than this ratio allows will be rounded up to the minimum
+     * allowed size by the camera device.</p>
+     */
+    ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM =                 // float
+            ACAMERA_SCALER_START + 4,
+    /**
+     * <p>The available stream configurations that this
+     * camera device supports
+     * (i.e. format, width, height, output/input stream).</p>
+     *
+     * <p>Type: int32[n*4] (acamera_metadata_enum_android_scaler_available_stream_configurations_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>The configurations are listed as <code>(format, width, height, input?)</code>
+     * tuples.</p>
+     * <p>For a given use case, the actual maximum supported resolution
+     * may be lower than what is listed here, depending on the destination
+     * Surface for the image data. For example, for recording video,
+     * the video encoder chosen may have a maximum size limit (e.g. 1080p)
+     * smaller than what the camera (e.g. maximum resolution is 3264x2448)
+     * can provide.</p>
+     * <p>Please reference the documentation for the image data destination to
+     * check if it limits the maximum size for image data.</p>
+     * <p>Not all output formats may be supported in a configuration with
+     * an input stream of a particular format. For more details, see
+     * android.scaler.availableInputOutputFormatsMap.</p>
+     * <p>The following table describes the minimum required output stream
+     * configurations based on the hardware level
+     * (ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL):</p>
+     * <p>Format         | Size                                         | Hardware Level | Notes
+     * :-------------:|:--------------------------------------------:|:--------------:|:--------------:
+     * JPEG           | ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE          | Any            |
+     * JPEG           | 1920x1080 (1080p)                            | Any            | if 1080p &lt;= activeArraySize
+     * JPEG           | 1280x720 (720)                               | Any            | if 720p &lt;= activeArraySize
+     * JPEG           | 640x480 (480p)                               | Any            | if 480p &lt;= activeArraySize
+     * JPEG           | 320x240 (240p)                               | Any            | if 240p &lt;= activeArraySize
+     * YUV_420_888    | all output sizes available for JPEG          | FULL           |
+     * YUV_420_888    | all output sizes available for JPEG, up to the maximum video size | LIMITED        |
+     * IMPLEMENTATION_DEFINED | same as YUV_420_888                  | Any            |</p>
+     * <p>Refer to ACAMERA_REQUEST_AVAILABLE_CAPABILITIES for additional
+     * mandatory stream configurations on a per-capability basis.</p>
+     *
+     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS =            // int32[n*4] (acamera_metadata_enum_android_scaler_available_stream_configurations_t)
+            ACAMERA_SCALER_START + 10,
+    /**
+     * <p>This lists the minimum frame duration for each
+     * format/size combination.</p>
+     *
+     * <p>Type: int64[4*n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This should correspond to the frame duration when only that
+     * stream is active, with all processing (typically in android.*.mode)
+     * set to either OFF or FAST.</p>
+     * <p>When multiple streams are used in a request, the minimum frame
+     * duration will be max(individual stream min durations).</p>
+     * <p>The minimum frame duration of a stream (of a particular format, size)
+     * is the same regardless of whether the stream is input or output.</p>
+     * <p>See ACAMERA_SENSOR_FRAME_DURATION and
+     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for more details about
+     * calculating the max frame rate.</p>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     */
+    ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS =              // int64[4*n]
+            ACAMERA_SCALER_START + 11,
+    /**
+     * <p>This lists the maximum stall duration for each
+     * output format/size combination.</p>
+     *
+     * <p>Type: int64[4*n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>A stall duration is how much extra time would get added
+     * to the normal minimum frame duration for a repeating request
+     * that has streams with non-zero stall.</p>
+     * <p>For example, consider JPEG captures which have the following
+     * characteristics:</p>
+     * <ul>
+     * <li>JPEG streams act like processed YUV streams in requests for which
+     * they are not included; in requests in which they are directly
+     * referenced, they act as JPEG streams. This is because supporting a
+     * JPEG stream requires the underlying YUV data to always be ready for
+     * use by a JPEG encoder, but the encoder will only be used (and impact
+     * frame duration) on requests that actually reference a JPEG stream.</li>
+     * <li>The JPEG processor can run concurrently to the rest of the camera
+     * pipeline, but cannot process more than 1 capture at a time.</li>
+     * </ul>
+     * <p>In other words, using a repeating YUV request would result
+     * in a steady frame rate (let's say it's 30 FPS). If a single
+     * JPEG request is submitted periodically, the frame rate will stay
+     * at 30 FPS (as long as we wait for the previous JPEG to return each
+     * time). If we try to submit a repeating YUV + JPEG request, then
+     * the frame rate will drop from 30 FPS.</p>
+     * <p>In general, submitting a new request with a non-0 stall time
+     * stream will <em>not</em> cause a frame rate drop unless there are still
+     * outstanding buffers for that stream from previous requests.</p>
+     * <p>Submitting a repeating request with streams (call this <code>S</code>)
+     * is the same as setting the minimum frame duration from
+     * the normal minimum frame duration corresponding to <code>S</code>, added with
+     * the maximum stall duration for <code>S</code>.</p>
+     * <p>If interleaving requests with and without a stall duration,
+     * a request will stall by the maximum of the remaining times
+     * for each can-stall stream with outstanding buffers.</p>
+     * <p>This means that a stalling request will not have an exposure start
+     * until the stall has completed.</p>
+     * <p>This should correspond to the stall duration when only that stream is
+     * active, with all processing (typically in android.*.mode) set to FAST
+     * or OFF. Setting any of the processing modes to HIGH_QUALITY
+     * effectively results in an indeterminate stall duration for all
+     * streams in a request (the regular stall calculation rules are
+     * ignored).</p>
+     * <p>The following formats may always have a stall duration:</p>
+     * <ul>
+     * <li>{@link AIMAGE_FORMAT_JPEG}</li>
+     * <li>{@link AIMAGE_FORMAT_RAW16}</li>
+     * </ul>
+     * <p>The following formats will never have a stall duration:</p>
+     * <ul>
+     * <li>{@link AIMAGE_FORMAT_YUV_420_888}</li>
+     * <li>{@link AIMAGE_FORMAT_RAW10}</li>
+     * </ul>
+     * <p>All other formats may or may not have an allowed stall duration on
+     * a per-capability basis; refer to ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * for more details.</p>
+     * <p>See ACAMERA_SENSOR_FRAME_DURATION for more information about
+     * calculating the max frame rate (absent stalls).</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     */
+    ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS =                  // int64[4*n]
+            ACAMERA_SCALER_START + 12,
+    /**
+     * <p>The crop type that this camera device supports.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_scaler_cropping_type_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>When passing a non-centered crop region (ACAMERA_SCALER_CROP_REGION) to a camera
+     * device that only supports CENTER_ONLY cropping, the camera device will move the
+     * crop region to the center of the sensor active array (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE)
+     * and keep the crop region width and height unchanged. The camera device will return the
+     * final used crop region in metadata result ACAMERA_SCALER_CROP_REGION.</p>
+     * <p>Camera devices that support FREEFORM cropping will support any crop region that
+     * is inside of the active array. The camera device will apply the same crop region and
+     * return the final used crop region in capture result metadata ACAMERA_SCALER_CROP_REGION.</p>
+     * <p>LEGACY capability devices will only support CENTER_ONLY cropping.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SCALER_CROPPING_TYPE =                              // byte (acamera_metadata_enum_android_scaler_cropping_type_t)
+            ACAMERA_SCALER_START + 13,
+    ACAMERA_SCALER_END,
+
+    /**
+     * <p>Duration each pixel is exposed to
+     * light.</p>
+     *
+     * <p>Type: int64</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>If the sensor can't expose this exact duration, it will shorten the
+     * duration exposed to the nearest possible value (rather than expose longer).
+     * The final exposure time used will be available in the output capture result.</p>
+     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_SENSOR_EXPOSURE_TIME =                              // int64
+            ACAMERA_SENSOR_START,
+    /**
+     * <p>Duration from start of frame exposure to
+     * start of next frame exposure.</p>
+     *
+     * <p>Type: int64</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>The maximum frame rate that can be supported by a camera subsystem is
+     * a function of many factors:</p>
+     * <ul>
+     * <li>Requested resolutions of output image streams</li>
+     * <li>Availability of binning / skipping modes on the imager</li>
+     * <li>The bandwidth of the imager interface</li>
+     * <li>The bandwidth of the various ISP processing blocks</li>
+     * </ul>
+     * <p>Since these factors can vary greatly between different ISPs and
+     * sensors, the camera abstraction tries to represent the bandwidth
+     * restrictions with as simple a model as possible.</p>
+     * <p>The model presented has the following characteristics:</p>
+     * <ul>
+     * <li>The image sensor is always configured to output the smallest
+     * resolution possible given the application's requested output stream
+     * sizes.  The smallest resolution is defined as being at least as large
+     * as the largest requested output stream size; the camera pipeline must
+     * never digitally upsample sensor data when the crop region covers the
+     * whole sensor. In general, this means that if only small output stream
+     * resolutions are configured, the sensor can provide a higher frame
+     * rate.</li>
+     * <li>Since any request may use any or all the currently configured
+     * output streams, the sensor and ISP must be configured to support
+     * scaling a single capture to all the streams at the same time.  This
+     * means the camera pipeline must be ready to produce the largest
+     * requested output size without any delay.  Therefore, the overall
+     * frame rate of a given configured stream set is governed only by the
+     * largest requested stream resolution.</li>
+     * <li>Using more than one output stream in a request does not affect the
+     * frame duration.</li>
+     * <li>Certain format-streams may need to do additional background processing
+     * before data is consumed/produced by that stream. These processors
+     * can run concurrently to the rest of the camera pipeline, but
+     * cannot process more than 1 capture at a time.</li>
+     * </ul>
+     * <p>The necessary information for the application, given the model above,
+     * is provided via
+     * {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}.
+     * These are used to determine the maximum frame rate / minimum frame
+     * duration that is possible for a given stream configuration.</p>
+     * <p>Specifically, the application can use the following rules to
+     * determine the minimum frame duration it can request from the camera
+     * device:</p>
+     * <ol>
+     * <li>Let the set of currently configured input/output streams
+     * be called <code>S</code>.</li>
+     * <li>Find the minimum frame durations for each stream in <code>S</code>, by looking
+     * it up in {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}
+     * (with its respective size/format). Let this set of frame durations be
+     * called <code>F</code>.</li>
+     * <li>For any given request <code>R</code>, the minimum frame duration allowed
+     * for <code>R</code> is the maximum out of all values in <code>F</code>. Let the streams
+     * used in <code>R</code> be called <code>S_r</code>.</li>
+     * </ol>
+     * <p>If none of the streams in <code>S_r</code> have a stall time (listed in {@link
+     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS}
+     * using its respective size/format), then the frame duration in <code>F</code>
+     * determines the steady state frame rate that the application will get
+     * if it uses <code>R</code> as a repeating request. Let this special kind of
+     * request be called <code>Rsimple</code>.</p>
+     * <p>A repeating request <code>Rsimple</code> can be <em>occasionally</em> interleaved
+     * by a single capture of a new request <code>Rstall</code> (which has at least
+     * one in-use stream with a non-0 stall time) and if <code>Rstall</code> has the
+     * same minimum frame duration this will not cause a frame rate loss
+     * if all buffers from the previous <code>Rstall</code> have already been
+     * delivered.</p>
+     * <p>For more details about stalling, see
+     * {@link ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS}.</p>
+     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_SENSOR_FRAME_DURATION =                             // int64
+            ACAMERA_SENSOR_START + 1,
+    /**
+     * <p>The amount of gain applied to sensor data
+     * before processing.</p>
+     *
+     * <p>Type: int32</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>The sensitivity is the standard ISO sensitivity value,
+     * as defined in ISO 12232:2006.</p>
+     * <p>The sensitivity must be within ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE, and
+     * if if it less than ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY, the camera device
+     * is guaranteed to use only analog amplification for applying the gain.</p>
+     * <p>If the camera device cannot apply the exact sensitivity
+     * requested, it will reduce the gain to the nearest supported
+     * value. The final sensitivity used will be available in the
+     * output capture result.</p>
+     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE
+     * @see ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY
+     */
+    ACAMERA_SENSOR_SENSITIVITY =                                // int32
+            ACAMERA_SENSOR_START + 2,
+    /**
+     * <p>The standard reference illuminant used as the scene light source when
+     * calculating the ACAMERA_SENSOR_COLOR_TRANSFORM1,
+     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM1, and
+     * ACAMERA_SENSOR_FORWARD_MATRIX1 matrices.</p>
+     *
+     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM1
+     * @see ACAMERA_SENSOR_COLOR_TRANSFORM1
+     * @see ACAMERA_SENSOR_FORWARD_MATRIX1
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_sensor_reference_illuminant1_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>The values in this key correspond to the values defined for the
+     * EXIF LightSource tag. These illuminants are standard light sources
+     * that are often used calibrating camera devices.</p>
+     * <p>If this key is present, then ACAMERA_SENSOR_COLOR_TRANSFORM1,
+     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM1, and
+     * ACAMERA_SENSOR_FORWARD_MATRIX1 will also be present.</p>
+     * <p>Some devices may choose to provide a second set of calibration
+     * information for improved quality, including
+     * ACAMERA_SENSOR_REFERENCE_ILLUMINANT2 and its corresponding matrices.</p>
+     *
+     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM1
+     * @see ACAMERA_SENSOR_COLOR_TRANSFORM1
+     * @see ACAMERA_SENSOR_FORWARD_MATRIX1
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1 =                      // byte (acamera_metadata_enum_android_sensor_reference_illuminant1_t)
+            ACAMERA_SENSOR_START + 3,
+    /**
+     * <p>The standard reference illuminant used as the scene light source when
+     * calculating the ACAMERA_SENSOR_COLOR_TRANSFORM2,
+     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM2, and
+     * ACAMERA_SENSOR_FORWARD_MATRIX2 matrices.</p>
+     *
+     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM2
+     * @see ACAMERA_SENSOR_COLOR_TRANSFORM2
+     * @see ACAMERA_SENSOR_FORWARD_MATRIX2
+     *
+     * <p>Type: byte</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>See ACAMERA_SENSOR_REFERENCE_ILLUMINANT1 for more details.</p>
+     * <p>If this key is present, then ACAMERA_SENSOR_COLOR_TRANSFORM2,
+     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM2, and
+     * ACAMERA_SENSOR_FORWARD_MATRIX2 will also be present.</p>
+     *
+     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM2
+     * @see ACAMERA_SENSOR_COLOR_TRANSFORM2
+     * @see ACAMERA_SENSOR_FORWARD_MATRIX2
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT2 =                      // byte
+            ACAMERA_SENSOR_START + 4,
+    /**
+     * <p>A per-device calibration transform matrix that maps from the
+     * reference sensor colorspace to the actual device sensor colorspace.</p>
+     *
+     * <p>Type: rational[3*3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This matrix is used to correct for per-device variations in the
+     * sensor colorspace, and is used for processing raw buffer data.</p>
+     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+     * contains a per-device calibration transform that maps colors
+     * from reference sensor color space (i.e. the "golden module"
+     * colorspace) into this camera device's native sensor color
+     * space under the first reference illuminant
+     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1).</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+     */
+    ACAMERA_SENSOR_CALIBRATION_TRANSFORM1 =                     // rational[3*3]
+            ACAMERA_SENSOR_START + 5,
+    /**
+     * <p>A per-device calibration transform matrix that maps from the
+     * reference sensor colorspace to the actual device sensor colorspace
+     * (this is the colorspace of the raw buffer data).</p>
+     *
+     * <p>Type: rational[3*3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This matrix is used to correct for per-device variations in the
+     * sensor colorspace, and is used for processing raw buffer data.</p>
+     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+     * contains a per-device calibration transform that maps colors
+     * from reference sensor color space (i.e. the "golden module"
+     * colorspace) into this camera device's native sensor color
+     * space under the second reference illuminant
+     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2).</p>
+     * <p>This matrix will only be present if the second reference
+     * illuminant is present.</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+     */
+    ACAMERA_SENSOR_CALIBRATION_TRANSFORM2 =                     // rational[3*3]
+            ACAMERA_SENSOR_START + 6,
+    /**
+     * <p>A matrix that transforms color values from CIE XYZ color space to
+     * reference sensor color space.</p>
+     *
+     * <p>Type: rational[3*3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This matrix is used to convert from the standard CIE XYZ color
+     * space to the reference sensor colorspace, and is used when processing
+     * raw buffer data.</p>
+     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+     * contains a color transform matrix that maps colors from the CIE
+     * XYZ color space to the reference sensor color space (i.e. the
+     * "golden module" colorspace) under the first reference illuminant
+     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1).</p>
+     * <p>The white points chosen in both the reference sensor color space
+     * and the CIE XYZ colorspace when calculating this transform will
+     * match the standard white point for the first reference illuminant
+     * (i.e. no chromatic adaptation will be applied by this transform).</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+     */
+    ACAMERA_SENSOR_COLOR_TRANSFORM1 =                           // rational[3*3]
+            ACAMERA_SENSOR_START + 7,
+    /**
+     * <p>A matrix that transforms color values from CIE XYZ color space to
+     * reference sensor color space.</p>
+     *
+     * <p>Type: rational[3*3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This matrix is used to convert from the standard CIE XYZ color
+     * space to the reference sensor colorspace, and is used when processing
+     * raw buffer data.</p>
+     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+     * contains a color transform matrix that maps colors from the CIE
+     * XYZ color space to the reference sensor color space (i.e. the
+     * "golden module" colorspace) under the second reference illuminant
+     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2).</p>
+     * <p>The white points chosen in both the reference sensor color space
+     * and the CIE XYZ colorspace when calculating this transform will
+     * match the standard white point for the second reference illuminant
+     * (i.e. no chromatic adaptation will be applied by this transform).</p>
+     * <p>This matrix will only be present if the second reference
+     * illuminant is present.</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+     */
+    ACAMERA_SENSOR_COLOR_TRANSFORM2 =                           // rational[3*3]
+            ACAMERA_SENSOR_START + 8,
+    /**
+     * <p>A matrix that transforms white balanced camera colors from the reference
+     * sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p>
+     *
+     * <p>Type: rational[3*3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This matrix is used to convert to the standard CIE XYZ colorspace, and
+     * is used when processing raw buffer data.</p>
+     * <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains
+     * a color transform matrix that maps white balanced colors from the
+     * reference sensor color space to the CIE XYZ color space with a D50 white
+     * point.</p>
+     * <p>Under the first reference illuminant (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1)
+     * this matrix is chosen so that the standard white point for this reference
+     * illuminant in the reference sensor colorspace is mapped to D50 in the
+     * CIE XYZ colorspace.</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+     */
+    ACAMERA_SENSOR_FORWARD_MATRIX1 =                            // rational[3*3]
+            ACAMERA_SENSOR_START + 9,
+    /**
+     * <p>A matrix that transforms white balanced camera colors from the reference
+     * sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p>
+     *
+     * <p>Type: rational[3*3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This matrix is used to convert to the standard CIE XYZ colorspace, and
+     * is used when processing raw buffer data.</p>
+     * <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains
+     * a color transform matrix that maps white balanced colors from the
+     * reference sensor color space to the CIE XYZ color space with a D50 white
+     * point.</p>
+     * <p>Under the second reference illuminant (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2)
+     * this matrix is chosen so that the standard white point for this reference
+     * illuminant in the reference sensor colorspace is mapped to D50 in the
+     * CIE XYZ colorspace.</p>
+     * <p>This matrix will only be present if the second reference
+     * illuminant is present.</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+     */
+    ACAMERA_SENSOR_FORWARD_MATRIX2 =                            // rational[3*3]
+            ACAMERA_SENSOR_START + 10,
+    /**
+     * <p>A fixed black level offset for each of the color filter arrangement
+     * (CFA) mosaic channels.</p>
+     *
+     * <p>Type: int32[4]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This key specifies the zero light value for each of the CFA mosaic
+     * channels in the camera sensor.  The maximal value output by the
+     * sensor is represented by the value in ACAMERA_SENSOR_INFO_WHITE_LEVEL.</p>
+     * <p>The values are given in the same order as channels listed for the CFA
+     * layout key (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT), i.e. the
+     * nth value given corresponds to the black level offset for the nth
+     * color channel listed in the CFA.</p>
+     * <p>The black level values of captured images may vary for different
+     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY). This key
+     * represents a coarse approximation for such case. It is recommended to
+     * use ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL or use pixels from
+     * ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS directly for captures when
+     * supported by the camera device, which provides more accurate black
+     * level values. For raw capture in particular, it is recommended to use
+     * pixels from ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS to calculate black
+     * level values for each frame.</p>
+     *
+     * @see ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL
+     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+     * @see ACAMERA_SENSOR_INFO_WHITE_LEVEL
+     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_SENSOR_BLACK_LEVEL_PATTERN =                        // int32[4]
+            ACAMERA_SENSOR_START + 12,
+    /**
+     * <p>Maximum sensitivity that is implemented
+     * purely through analog gain.</p>
+     *
+     * <p>Type: int32</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>For ACAMERA_SENSOR_SENSITIVITY values less than or
+     * equal to this, all applied gain must be analog. For
+     * values above this, the gain applied can be a mix of analog and
+     * digital.</p>
+     *
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY =                     // int32
+            ACAMERA_SENSOR_START + 13,
+    /**
+     * <p>Clockwise angle through which the output image needs to be rotated to be
+     * upright on the device screen in its native orientation.</p>
+     *
+     * <p>Type: int32</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Also defines the direction of rolling shutter readout, which is from top to bottom in
+     * the sensor's coordinate system.</p>
+     */
+    ACAMERA_SENSOR_ORIENTATION =                                // int32
+            ACAMERA_SENSOR_START + 14,
+    /**
+     * <p>Time at start of exposure of first
+     * row of the image sensor active array, in nanoseconds.</p>
+     *
+     * <p>Type: int64</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>The timestamps are also included in all image
+     * buffers produced for the same capture, and will be identical
+     * on all the outputs.</p>
+     * <p>When ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> UNKNOWN,
+     * the timestamps measure time since an unspecified starting point,
+     * and are monotonically increasing. They can be compared with the
+     * timestamps for other captures from the same camera device, but are
+     * not guaranteed to be comparable to any other time source.</p>
+     * <p>When ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> REALTIME, the
+     * timestamps measure time in the same timebase as
+     * <a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtimeNanos">elapsedRealtimeNanos</a>
+     * (or CLOCK_BOOTTIME), and they can
+     * be compared to other timestamps from other subsystems that
+     * are using that base.</p>
+     * <p>For reprocessing, the timestamp will match the start of exposure of
+     * the input image, i.e. {@link CaptureResult#SENSOR_TIMESTAMP the
+     * timestamp} in the TotalCaptureResult that was used to create the
+     * reprocess capture request.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
+     */
+    ACAMERA_SENSOR_TIMESTAMP =                                  // int64
+            ACAMERA_SENSOR_START + 16,
+    /**
+     * <p>The estimated camera neutral color in the native sensor colorspace at
+     * the time of capture.</p>
+     *
+     * <p>Type: rational[3]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>This value gives the neutral color point encoded as an RGB value in the
+     * native sensor color space.  The neutral color point indicates the
+     * currently estimated white point of the scene illumination.  It can be
+     * used to interpolate between the provided color transforms when
+     * processing raw sensor data.</p>
+     * <p>The order of the values is R, G, B; where R is in the lowest index.</p>
+     */
+    ACAMERA_SENSOR_NEUTRAL_COLOR_POINT =                        // rational[3]
+            ACAMERA_SENSOR_START + 18,
+    /**
+     * <p>Noise model coefficients for each CFA mosaic channel.</p>
+     *
+     * <p>Type: double[2*CFA Channels]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>This key contains two noise model coefficients for each CFA channel
+     * corresponding to the sensor amplification (S) and sensor readout
+     * noise (O).  These are given as pairs of coefficients for each channel
+     * in the same order as channels listed for the CFA layout key
+     * (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT).  This is
+     * represented as an array of Pair&lt;Double, Double&gt;, where
+     * the first member of the Pair at index n is the S coefficient and the
+     * second member is the O coefficient for the nth color channel in the CFA.</p>
+     * <p>These coefficients are used in a two parameter noise model to describe
+     * the amount of noise present in the image for each CFA channel.  The
+     * noise model used here is:</p>
+     * <p>N(x) = sqrt(Sx + O)</p>
+     * <p>Where x represents the recorded signal of a CFA channel normalized to
+     * the range [0, 1], and S and O are the noise model coeffiecients for
+     * that channel.</p>
+     * <p>A more detailed description of the noise model can be found in the
+     * Adobe DNG specification for the NoiseProfile tag.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+     */
+    ACAMERA_SENSOR_NOISE_PROFILE =                              // double[2*CFA Channels]
+            ACAMERA_SENSOR_START + 19,
+    /**
+     * <p>The worst-case divergence between Bayer green channels.</p>
+     *
+     * <p>Type: float</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>This value is an estimate of the worst case split between the
+     * Bayer green channels in the red and blue rows in the sensor color
+     * filter array.</p>
+     * <p>The green split is calculated as follows:</p>
+     * <ol>
+     * <li>A 5x5 pixel (or larger) window W within the active sensor array is
+     * chosen. The term 'pixel' here is taken to mean a group of 4 Bayer
+     * mosaic channels (R, Gr, Gb, B).  The location and size of the window
+     * chosen is implementation defined, and should be chosen to provide a
+     * green split estimate that is both representative of the entire image
+     * for this camera sensor, and can be calculated quickly.</li>
+     * <li>The arithmetic mean of the green channels from the red
+     * rows (mean_Gr) within W is computed.</li>
+     * <li>The arithmetic mean of the green channels from the blue
+     * rows (mean_Gb) within W is computed.</li>
+     * <li>The maximum ratio R of the two means is computed as follows:
+     * <code>R = max((mean_Gr + 1)/(mean_Gb + 1), (mean_Gb + 1)/(mean_Gr + 1))</code></li>
+     * </ol>
+     * <p>The ratio R is the green split divergence reported for this property,
+     * which represents how much the green channels differ in the mosaic
+     * pattern.  This value is typically used to determine the treatment of
+     * the green mosaic channels when demosaicing.</p>
+     * <p>The green split value can be roughly interpreted as follows:</p>
+     * <ul>
+     * <li>R &lt; 1.03 is a negligible split (&lt;3% divergence).</li>
+     * <li>1.20 &lt;= R &gt;= 1.03 will require some software
+     * correction to avoid demosaic errors (3-20% divergence).</li>
+     * <li>R &gt; 1.20 will require strong software correction to produce
+     * a usuable image (&gt;20% divergence).</li>
+     * </ul>
+     */
+    ACAMERA_SENSOR_GREEN_SPLIT =                                // float
+            ACAMERA_SENSOR_START + 22,
+    /**
+     * <p>A pixel <code>[R, G_even, G_odd, B]</code> that supplies the test pattern
+     * when ACAMERA_SENSOR_TEST_PATTERN_MODE is SOLID_COLOR.</p>
+     *
+     * @see ACAMERA_SENSOR_TEST_PATTERN_MODE
+     *
+     * <p>Type: int32[4]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Each color channel is treated as an unsigned 32-bit integer.
+     * The camera device then uses the most significant X bits
+     * that correspond to how many bits are in its Bayer raw sensor
+     * output.</p>
+     * <p>For example, a sensor with RAW10 Bayer output would use the
+     * 10 most significant bits from each color channel.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_DATA =                          // int32[4]
+            ACAMERA_SENSOR_START + 23,
+    /**
+     * <p>When enabled, the sensor sends a test pattern instead of
+     * doing a real exposure from the camera.</p>
+     *
+     * <p>Type: int32 (acamera_metadata_enum_android_sensor_test_pattern_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>When a test pattern is enabled, all manual sensor controls specified
+     * by ACAMERA_SENSOR_* will be ignored. All other controls should
+     * work as normal.</p>
+     * <p>For example, if manual flash is enabled, flash firing should still
+     * occur (and that the test pattern remain unmodified, since the flash
+     * would not actually affect it).</p>
+     * <p>Defaults to OFF.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE =                          // int32 (acamera_metadata_enum_android_sensor_test_pattern_mode_t)
+            ACAMERA_SENSOR_START + 24,
+    /**
+     * <p>List of sensor test pattern modes for ACAMERA_SENSOR_TEST_PATTERN_MODE
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_SENSOR_TEST_PATTERN_MODE
+     *
+     * <p>Type: int32[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Defaults to OFF, and always includes OFF if defined.</p>
+     */
+    ACAMERA_SENSOR_AVAILABLE_TEST_PATTERN_MODES =               // int32[n]
+            ACAMERA_SENSOR_START + 25,
+    /**
+     * <p>Duration between the start of first row exposure
+     * and the start of last row exposure.</p>
+     *
+     * <p>Type: int64</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>This is the exposure time skew between the first and last
+     * row exposure start times. The first row and the last row are
+     * the first and last rows inside of the
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+     * <p>For typical camera sensors that use rolling shutters, this is also equivalent
+     * to the frame readout time.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SENSOR_ROLLING_SHUTTER_SKEW =                       // int64
+            ACAMERA_SENSOR_START + 26,
+    /**
+     * <p>List of disjoint rectangles indicating the sensor
+     * optically shielded black pixel regions.</p>
+     *
+     * <p>Type: int32[4*num_regions]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>In most camera sensors, the active array is surrounded by some
+     * optically shielded pixel areas. By blocking light, these pixels
+     * provides a reliable black reference for black level compensation
+     * in active array region.</p>
+     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+     * <p>This key provides a list of disjoint rectangles specifying the
+     * regions of optically shielded (with metal shield) black pixel
+     * regions if the camera device is capable of reading out these black
+     * pixels in the output raw images. In comparison to the fixed black
+     * level values reported by ACAMERA_SENSOR_BLACK_LEVEL_PATTERN, this key
+     * may provide a more accurate way for the application to calculate
+     * black level of each captured raw images.</p>
+     * <p>When this key is reported, the ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL and
+     * ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL will also be reported.</p>
+     *
+     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+     * @see ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL
+     * @see ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL
+     */
+    ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS =                      // int32[4*num_regions]
+            ACAMERA_SENSOR_START + 27,
+    /**
+     * <p>A per-frame dynamic black level offset for each of the color filter
+     * arrangement (CFA) mosaic channels.</p>
+     *
+     * <p>Type: float[4]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>Camera sensor black levels may vary dramatically for different
+     * capture settings (e.g. ACAMERA_SENSOR_SENSITIVITY). The fixed black
+     * level reported by ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may be too
+     * inaccurate to represent the actual value on a per-frame basis. The
+     * camera device internal pipeline relies on reliable black level values
+     * to process the raw images appropriately. To get the best image
+     * quality, the camera device may choose to estimate the per frame black
+     * level values either based on optically shielded black regions
+     * (ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS) or its internal model.</p>
+     * <p>This key reports the camera device estimated per-frame zero light
+     * value for each of the CFA mosaic channels in the camera sensor. The
+     * ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may only represent a coarse
+     * approximation of the actual black level values. This value is the
+     * black level used in camera device internal image processing pipeline
+     * and generally more accurate than the fixed black level values.
+     * However, since they are estimated values by the camera device, they
+     * may not be as accurate as the black level values calculated from the
+     * optical black pixels reported by ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS.</p>
+     * <p>The values are given in the same order as channels listed for the CFA
+     * layout key (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT), i.e. the
+     * nth value given corresponds to the black level offset for the nth
+     * color channel listed in the CFA.</p>
+     * <p>This key will be available if ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS is
+     * available or the camera device advertises this key via
+     * {@link ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS}.</p>
+     *
+     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL =                        // float[4]
+            ACAMERA_SENSOR_START + 28,
+    /**
+     * <p>Maximum raw value output by sensor for this frame.</p>
+     *
+     * <p>Type: int32</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>Since the ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may change for different
+     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY), the white
+     * level will change accordingly. This key is similar to
+     * ACAMERA_SENSOR_INFO_WHITE_LEVEL, but specifies the camera device
+     * estimated white level for each frame.</p>
+     * <p>This key will be available if ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS is
+     * available or the camera device advertises this key via
+     * {@link ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS}.</p>
+     *
+     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+     * @see ACAMERA_SENSOR_INFO_WHITE_LEVEL
+     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL =                        // int32
+            ACAMERA_SENSOR_START + 29,
+    ACAMERA_SENSOR_END,
+
+    /**
+     * <p>The area of the image sensor which corresponds to active pixels after any geometric
+     * distortion correction has been applied.</p>
+     *
+     * <p>Type: int32[4]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This is the rectangle representing the size of the active region of the sensor (i.e.
+     * the region that actually receives light from the scene) after any geometric correction
+     * has been applied, and should be treated as the maximum size in pixels of any of the
+     * image output formats aside from the raw formats.</p>
+     * <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of
+     * the full pixel array, and the size of the full pixel array is given by
+     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
+     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+     * <p>The coordinate system for most other keys that list pixel coordinates, including
+     * ACAMERA_SCALER_CROP_REGION, is defined relative to the active array rectangle given in
+     * this field, with <code>(0, 0)</code> being the top-left of this rectangle.</p>
+     * <p>The active array may be smaller than the full pixel array, since the full array may
+     * include black calibration pixels or other inactive regions, and geometric correction
+     * resulting in scaling or cropping may have been applied.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     */
+    ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE =                     // int32[4]
+            ACAMERA_SENSOR_INFO_START,
+    /**
+     * <p>Range of sensitivities for ACAMERA_SENSOR_SENSITIVITY supported by this
+     * camera device.</p>
+     *
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     *
+     * <p>Type: int32[2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>The values are the standard ISO sensitivity values,
+     * as defined in ISO 12232:2006.</p>
+     */
+    ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE =                     // int32[2]
+            ACAMERA_SENSOR_INFO_START + 1,
+    /**
+     * <p>The arrangement of color filters on sensor;
+     * represents the colors in the top-left 2x2 section of
+     * the sensor, in reading order.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_sensor_info_color_filter_arrangement_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     */
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT =              // byte (acamera_metadata_enum_android_sensor_info_color_filter_arrangement_t)
+            ACAMERA_SENSOR_INFO_START + 2,
+    /**
+     * <p>The range of image exposure times for ACAMERA_SENSOR_EXPOSURE_TIME supported
+     * by this camera device.</p>
+     *
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     *
+     * <p>Type: int64[2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     */
+    ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE =                   // int64[2]
+            ACAMERA_SENSOR_INFO_START + 3,
+    /**
+     * <p>The maximum possible frame duration (minimum frame rate) for
+     * ACAMERA_SENSOR_FRAME_DURATION that is supported this camera device.</p>
+     *
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     *
+     * <p>Type: int64</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Attempting to use frame durations beyond the maximum will result in the frame
+     * duration being clipped to the maximum. See that control for a full definition of frame
+     * durations.</p>
+     * <p>Refer to {@link
+     * ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}
+     * for the minimum frame duration values.</p>
+     */
+    ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION =                    // int64
+            ACAMERA_SENSOR_INFO_START + 4,
+    /**
+     * <p>The physical dimensions of the full pixel
+     * array.</p>
+     *
+     * <p>Type: float[2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This is the physical size of the sensor pixel
+     * array defined by ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     */
+    ACAMERA_SENSOR_INFO_PHYSICAL_SIZE =                         // float[2]
+            ACAMERA_SENSOR_INFO_START + 5,
+    /**
+     * <p>Dimensions of the full pixel array, possibly
+     * including black calibration pixels.</p>
+     *
+     * <p>Type: int32[2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>The pixel count of the full pixel array of the image sensor, which covers
+     * ACAMERA_SENSOR_INFO_PHYSICAL_SIZE area.  This represents the full pixel dimensions of
+     * the raw buffers produced by this sensor.</p>
+     * <p>If a camera device supports raw sensor formats, either this or
+     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE is the maximum dimensions for the raw
+     * output formats listed in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS (this depends on
+     * whether or not the image sensor returns buffers containing pixels that are not
+     * part of the active array region for blacklevel calibration or other purposes).</p>
+     * <p>Some parts of the full pixel array may not receive light from the scene,
+     * or be otherwise inactive.  The ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE key
+     * defines the rectangle of active pixels that will be included in processed image
+     * formats.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_PHYSICAL_SIZE
+     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE =                      // int32[2]
+            ACAMERA_SENSOR_INFO_START + 6,
+    /**
+     * <p>Maximum raw value output by sensor.</p>
+     *
+     * <p>Type: int32</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This specifies the fully-saturated encoding level for the raw
+     * sample values from the sensor.  This is typically caused by the
+     * sensor becoming highly non-linear or clipping. The minimum for
+     * each channel is specified by the offset in the
+     * ACAMERA_SENSOR_BLACK_LEVEL_PATTERN key.</p>
+     * <p>The white level is typically determined either by sensor bit depth
+     * (8-14 bits is expected), or by the point where the sensor response
+     * becomes too non-linear to be useful.  The default value for this is
+     * maximum representable value for a 16-bit raw sample (2^16 - 1).</p>
+     * <p>The white level values of captured images may vary for different
+     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY). This key
+     * represents a coarse approximation for such case. It is recommended
+     * to use ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL for captures when supported
+     * by the camera device, which provides more accurate white level values.</p>
+     *
+     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+     * @see ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_SENSOR_INFO_WHITE_LEVEL =                           // int32
+            ACAMERA_SENSOR_INFO_START + 7,
+    /**
+     * <p>The time base source for sensor capture start timestamps.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_sensor_info_timestamp_source_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>The timestamps provided for captures are always in nanoseconds and monotonic, but
+     * may not based on a time source that can be compared to other system time sources.</p>
+     * <p>This characteristic defines the source for the timestamps, and therefore whether they
+     * can be compared against other system time sources/timestamps.</p>
+     */
+    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE =                      // byte (acamera_metadata_enum_android_sensor_info_timestamp_source_t)
+            ACAMERA_SENSOR_INFO_START + 8,
+    /**
+     * <p>Whether the RAW images output from this camera device are subject to
+     * lens shading correction.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_sensor_info_lens_shading_applied_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If TRUE, all images produced by the camera device in the RAW image formats will
+     * have lens shading correction already applied to it. If FALSE, the images will
+     * not be adjusted for lens shading correction.
+     * See android.request.maxNumOutputRaw for a list of RAW image formats.</p>
+     * <p>This key will be <code>null</code> for all devices do not report this information.
+     * Devices with RAW capability will always report this information in this key.</p>
+     */
+    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED =                  // byte (acamera_metadata_enum_android_sensor_info_lens_shading_applied_t)
+            ACAMERA_SENSOR_INFO_START + 9,
+    /**
+     * <p>The area of the image sensor which corresponds to active pixels prior to the
+     * application of any geometric distortion correction.</p>
+     *
+     * <p>Type: int32[4]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+     * <p>This is the rectangle representing the size of the active region of the sensor (i.e.
+     * the region that actually receives light from the scene) before any geometric correction
+     * has been applied, and should be treated as the active region rectangle for any of the
+     * raw formats.  All metadata associated with raw processing (e.g. the lens shading
+     * correction map, and radial distortion fields) treats the top, left of this rectangle as
+     * the origin, (0,0).</p>
+     * <p>The size of this region determines the maximum field of view and the maximum number of
+     * pixels that an image from this sensor can contain, prior to the application of
+     * geometric distortion correction. The effective maximum pixel dimensions of a
+     * post-distortion-corrected image is given by the ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * field, and the effective maximum field of view for a post-distortion-corrected image
+     * can be calculated by applying the geometric distortion correction fields to this
+     * rectangle, and cropping to the rectangle given in ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+     * <p>E.g. to calculate position of a pixel, (x,y), in a processed YUV output image with the
+     * dimensions in ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE given the position of a pixel,
+     * (x', y'), in the raw pixel array with dimensions give in
+     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE:</p>
+     * <ol>
+     * <li>Choose a pixel (x', y') within the active array region of the raw buffer given in
+     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE, otherwise this pixel is considered
+     * to be outside of the FOV, and will not be shown in the processed output image.</li>
+     * <li>Apply geometric distortion correction to get the post-distortion pixel coordinate,
+     * (x_i, y_i). When applying geometric correction metadata, note that metadata for raw
+     * buffers is defined relative to the top, left of the
+     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE rectangle.</li>
+     * <li>If the resulting corrected pixel coordinate is within the region given in
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, then the position of this pixel in the
+     * processed output image buffer is <code>(x_i - activeArray.left, y_i - activeArray.top)</code>,
+     * when the top, left coordinate of that buffer is treated as (0, 0).</li>
+     * </ol>
+     * <p>Thus, for pixel x',y' = (25, 25) on a sensor where ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     * is (100,100), ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE is (10, 10, 100, 100),
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE is (20, 20, 80, 80), and the geometric distortion
+     * correction doesn't change the pixel coordinate, the resulting pixel selected in
+     * pixel coordinates would be x,y = (25, 25) relative to the top,left of the raw buffer
+     * with dimensions given in ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE, and would be (5, 5)
+     * relative to the top,left of post-processed YUV output buffer with dimensions given in
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+     * <p>The currently supported fields that correct for geometric distortion are:</p>
+     * <ol>
+     * <li>ACAMERA_LENS_RADIAL_DISTORTION.</li>
+     * </ol>
+     * <p>If all of the geometric distortion fields are no-ops, this rectangle will be the same
+     * as the post-distortion-corrected rectangle given in
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+     * <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of
+     * the full pixel array, and the size of the full pixel array is given by
+     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
+     * <p>The pre-correction active array may be smaller than the full pixel array, since the
+     * full array may include black calibration pixels or other inactive regions.</p>
+     *
+     * @see ACAMERA_LENS_RADIAL_DISTORTION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE =      // int32[4]
+            ACAMERA_SENSOR_INFO_START + 10,
+    ACAMERA_SENSOR_INFO_END,
+
+    /**
+     * <p>Quality of lens shading correction applied
+     * to the image data.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_shading_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>When set to OFF mode, no lens shading correction will be applied by the
+     * camera device, and an identity lens shading map data will be provided
+     * if <code>ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE == ON</code>. For example, for lens
+     * shading map with size of <code>[ 4, 3 ]</code>,
+     * the output android.statistics.lensShadingCorrectionMap for this case will be an identity
+     * map shown below:</p>
+     * <pre><code>[ 1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
+     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
+     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
+     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
+     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
+     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0 ]
+     * </code></pre>
+     * <p>When set to other modes, lens shading correction will be applied by the camera
+     * device. Applications can request lens shading map data by setting
+     * ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE to ON, and then the camera device will provide lens
+     * shading map data in android.statistics.lensShadingCorrectionMap; the returned shading map
+     * data will be the one applied by the camera device for this capture request.</p>
+     * <p>The shading map data may depend on the auto-exposure (AE) and AWB statistics, therefore
+     * the reliability of the map data may be affected by the AE and AWB algorithms. When AE and
+     * AWB are in AUTO modes(ACAMERA_CONTROL_AE_MODE <code>!=</code> OFF and ACAMERA_CONTROL_AWB_MODE <code>!=</code>
+     * OFF), to get best results, it is recommended that the applications wait for the AE and AWB
+     * to be converged before using the returned shading map data.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+     */
+    ACAMERA_SHADING_MODE =                                      // byte (acamera_metadata_enum_android_shading_mode_t)
+            ACAMERA_SHADING_START,
+    /**
+     * <p>List of lens shading modes for ACAMERA_SHADING_MODE that are supported by this camera device.</p>
+     *
+     * @see ACAMERA_SHADING_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This list contains lens shading modes that can be set for the camera device.
+     * Camera devices that support the MANUAL_POST_PROCESSING capability will always
+     * list OFF and FAST mode. This includes all FULL level devices.
+     * LEGACY devices will always only support FAST mode.</p>
+     */
+    ACAMERA_SHADING_AVAILABLE_MODES =                           // byte[n]
+            ACAMERA_SHADING_START + 2,
+    ACAMERA_SHADING_END,
+
+    /**
+     * <p>Operating mode for the face detector
+     * unit.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_statistics_face_detect_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Whether face detection is enabled, and whether it
+     * should output just the basic fields or the full set of
+     * fields.</p>
+     */
+    ACAMERA_STATISTICS_FACE_DETECT_MODE =                       // byte (acamera_metadata_enum_android_statistics_face_detect_mode_t)
+            ACAMERA_STATISTICS_START,
+    /**
+     * <p>Operating mode for hot pixel map generation.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_statistics_hot_pixel_map_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>If set to <code>true</code>, a hot pixel map is returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.
+     * If set to <code>false</code>, no hot pixel map will be returned.</p>
+     *
+     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+     */
+    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE =                     // byte (acamera_metadata_enum_android_statistics_hot_pixel_map_mode_t)
+            ACAMERA_STATISTICS_START + 3,
+    /**
+     * <p>List of unique IDs for detected faces.</p>
+     *
+     * <p>Type: int32[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>Each detected face is given a unique ID that is valid for as long as the face is visible
+     * to the camera device.  A face that leaves the field of view and later returns may be
+     * assigned a new ID.</p>
+     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE == FULL</p>
+     *
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     */
+    ACAMERA_STATISTICS_FACE_IDS =                               // int32[n]
+            ACAMERA_STATISTICS_START + 4,
+    /**
+     * <p>List of landmarks for detected
+     * faces.</p>
+     *
+     * <p>Type: int32[n*6]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>The coordinate system is that of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with
+     * <code>(0, 0)</code> being the top-left pixel of the active array.</p>
+     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE == FULL</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     */
+    ACAMERA_STATISTICS_FACE_LANDMARKS =                         // int32[n*6]
+            ACAMERA_STATISTICS_START + 5,
+    /**
+     * <p>List of the bounding rectangles for detected
+     * faces.</p>
+     *
+     * <p>Type: int32[n*4]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+     * <p>The coordinate system is that of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with
+     * <code>(0, 0)</code> being the top-left pixel of the active array.</p>
+     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE != OFF</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     */
+    ACAMERA_STATISTICS_FACE_RECTANGLES =                        // int32[n*4]
+            ACAMERA_STATISTICS_START + 6,
+    /**
+     * <p>List of the face confidence scores for
+     * detected faces</p>
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE != OFF.</p>
+     *
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     */
+    ACAMERA_STATISTICS_FACE_SCORES =                            // byte[n]
+            ACAMERA_STATISTICS_START + 7,
+    /**
+     * <p>The shading map is a low-resolution floating-point map
+     * that lists the coefficients used to correct for vignetting and color shading,
+     * for each Bayer color channel of RAW image data.</p>
+     *
+     * <p>Type: float[4*n*m]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>The map provided here is the same map that is used by the camera device to
+     * correct both color shading and vignetting for output non-RAW images.</p>
+     * <p>When there is no lens shading correction applied to RAW
+     * output images (ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED <code>==</code>
+     * false), this map is the complete lens shading correction
+     * map; when there is some lens shading correction applied to
+     * the RAW output image (ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED<code>==</code> true), this map reports the remaining lens shading
+     * correction map that needs to be applied to get shading
+     * corrected images that match the camera device's output for
+     * non-RAW formats.</p>
+     * <p>For a complete shading correction map, the least shaded
+     * section of the image will have a gain factor of 1; all
+     * other sections will have gains above 1.</p>
+     * <p>When ACAMERA_COLOR_CORRECTION_MODE = TRANSFORM_MATRIX, the map
+     * will take into account the colorCorrection settings.</p>
+     * <p>The shading map is for the entire active pixel array, and is not
+     * affected by the crop region specified in the request. Each shading map
+     * entry is the value of the shading compensation map over a specific
+     * pixel on the sensor.  Specifically, with a (N x M) resolution shading
+     * map, and an active pixel array size (W x H), shading map entry
+     * (x,y) ϵ (0 ... N-1, 0 ... M-1) is the value of the shading map at
+     * pixel ( ((W-1)/(N-1)) * x, ((H-1)/(M-1)) * y) for the four color channels.
+     * The map is assumed to be bilinearly interpolated between the sample points.</p>
+     * <p>The channel order is [R, Geven, Godd, B], where Geven is the green
+     * channel for the even rows of a Bayer pattern, and Godd is the odd rows.
+     * The shading map is stored in a fully interleaved format, and its size
+     * is provided in the camera static metadata by ACAMERA_LENS_INFO_SHADING_MAP_SIZE.</p>
+     * <p>The shading map will generally have on the order of 30-40 rows and columns,
+     * and will be smaller than 64x64.</p>
+     * <p>As an example, given a very small map defined as:</p>
+     * <pre><code>ACAMERA_LENS_INFO_SHADING_MAP_SIZE = [ 4, 3 ]
+     * ACAMERA_STATISTICS_LENS_SHADING_MAP =
+     * [ 1.3, 1.2, 1.15, 1.2,  1.2, 1.2, 1.15, 1.2,
+     *     1.1, 1.2, 1.2, 1.2,  1.3, 1.2, 1.3, 1.3,
+     *   1.2, 1.2, 1.25, 1.1,  1.1, 1.1, 1.1, 1.0,
+     *     1.0, 1.0, 1.0, 1.0,  1.2, 1.3, 1.25, 1.2,
+     *   1.3, 1.2, 1.2, 1.3,   1.2, 1.15, 1.1, 1.2,
+     *     1.2, 1.1, 1.0, 1.2,  1.3, 1.15, 1.2, 1.3 ]
+     * </code></pre>
+     * <p>The low-resolution scaling map images for each channel are
+     * (displayed using nearest-neighbor interpolation):</p>
+     * <p><img alt="Red lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/red_shading.png" />
+     * <img alt="Green (even rows) lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/green_e_shading.png" />
+     * <img alt="Green (odd rows) lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/green_o_shading.png" />
+     * <img alt="Blue lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/blue_shading.png" /></p>
+     * <p>As a visualization only, inverting the full-color map to recover an
+     * image of a gray wall (using bicubic interpolation for visual quality)
+     * as captured by the sensor gives:</p>
+     * <p><img alt="Image of a uniform white wall (inverse shading map)" src="../images/camera2/metadata/android.statistics.lensShadingMap/inv_shading.png" /></p>
+     * <p>Note that the RAW image data might be subject to lens shading
+     * correction not reported on this map. Query
+     * ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED to see if RAW image data has subject
+     * to lens shading correction. If ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
+     * is TRUE, the RAW image data is subject to partial or full lens shading
+     * correction. In the case full lens shading correction is applied to RAW
+     * images, the gain factor map reported in this key will contain all 1.0 gains.
+     * In other words, the map reported in this key is the remaining lens shading
+     * that needs to be applied on the RAW image to get images without lens shading
+     * artifacts. See android.request.maxNumOutputRaw for a list of RAW image
+     * formats.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_MODE
+     * @see ACAMERA_LENS_INFO_SHADING_MAP_SIZE
+     * @see ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+     */
+    ACAMERA_STATISTICS_LENS_SHADING_MAP =                       // float[4*n*m]
+            ACAMERA_STATISTICS_START + 11,
+    /**
+     * <p>The camera device estimated scene illumination lighting
+     * frequency.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_statistics_scene_flicker_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>Many light sources, such as most fluorescent lights, flicker at a rate
+     * that depends on the local utility power standards. This flicker must be
+     * accounted for by auto-exposure routines to avoid artifacts in captured images.
+     * The camera device uses this entry to tell the application what the scene
+     * illuminant frequency is.</p>
+     * <p>When manual exposure control is enabled
+     * (<code>ACAMERA_CONTROL_AE_MODE == OFF</code> or <code>ACAMERA_CONTROL_MODE ==
+     * OFF</code>), the ACAMERA_CONTROL_AE_ANTIBANDING_MODE doesn't perform
+     * antibanding, and the application can ensure it selects
+     * exposure times that do not cause banding issues by looking
+     * into this metadata field. See
+     * ACAMERA_CONTROL_AE_ANTIBANDING_MODE for more details.</p>
+     * <p>Reports NONE if there doesn't appear to be flickering illumination.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_STATISTICS_SCENE_FLICKER =                          // byte (acamera_metadata_enum_android_statistics_scene_flicker_t)
+            ACAMERA_STATISTICS_START + 14,
+    /**
+     * <p>List of <code>(x, y)</code> coordinates of hot/defective pixels on the sensor.</p>
+     *
+     * <p>Type: int32[2*n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>A coordinate <code>(x, y)</code> must lie between <code>(0, 0)</code>, and
+     * <code>(width - 1, height - 1)</code> (inclusive), which are the top-left and
+     * bottom-right of the pixel array, respectively. The width and
+     * height dimensions are given in ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.
+     * This may include hot pixels that lie outside of the active array
+     * bounds given by ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     */
+    ACAMERA_STATISTICS_HOT_PIXEL_MAP =                          // int32[2*n]
+            ACAMERA_STATISTICS_START + 15,
+    /**
+     * <p>Whether the camera device will output the lens
+     * shading map in output result metadata.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_statistics_lens_shading_map_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>When set to ON,
+     * ACAMERA_STATISTICS_LENS_SHADING_MAP will be provided in
+     * the output result metadata.</p>
+     * <p>ON is always supported on devices with the RAW capability.</p>
+     *
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+     */
+    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE =                  // byte (acamera_metadata_enum_android_statistics_lens_shading_map_mode_t)
+            ACAMERA_STATISTICS_START + 16,
+    ACAMERA_STATISTICS_END,
+
+    /**
+     * <p>List of face detection modes for ACAMERA_STATISTICS_FACE_DETECT_MODE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>OFF is always supported.</p>
+     */
+    ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES =       // byte[n]
+            ACAMERA_STATISTICS_INFO_START,
+    /**
+     * <p>The maximum number of simultaneously detectable
+     * faces.</p>
+     *
+     * <p>Type: int32</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     */
+    ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT =                    // int32
+            ACAMERA_STATISTICS_INFO_START + 2,
+    /**
+     * <p>List of hot pixel map output modes for ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If no hotpixel map output is available for this camera device, this will contain only
+     * <code>false</code>.</p>
+     * <p>ON is always supported on devices with the RAW capability.</p>
+     */
+    ACAMERA_STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES =     // byte[n]
+            ACAMERA_STATISTICS_INFO_START + 6,
+    /**
+     * <p>List of lens shading map output modes for ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE that
+     * are supported by this camera device.</p>
+     *
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If no lens shading map output is available for this camera device, this key will
+     * contain only OFF.</p>
+     * <p>ON is always supported on devices with the RAW capability.
+     * LEGACY mode devices will always only support OFF.</p>
+     */
+    ACAMERA_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES =  // byte[n]
+            ACAMERA_STATISTICS_INFO_START + 7,
+    ACAMERA_STATISTICS_INFO_END,
+
+    /**
+     * <p>Tonemapping / contrast / gamma curve for the blue
+     * channel, to use when ACAMERA_TONEMAP_MODE is
+     * CONTRAST_CURVE.</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>Type: float[n*2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>See ACAMERA_TONEMAP_CURVE_RED for more details.</p>
+     *
+     * @see ACAMERA_TONEMAP_CURVE_RED
+     */
+    ACAMERA_TONEMAP_CURVE_BLUE =                                // float[n*2]
+            ACAMERA_TONEMAP_START,
+    /**
+     * <p>Tonemapping / contrast / gamma curve for the green
+     * channel, to use when ACAMERA_TONEMAP_MODE is
+     * CONTRAST_CURVE.</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>Type: float[n*2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>See ACAMERA_TONEMAP_CURVE_RED for more details.</p>
+     *
+     * @see ACAMERA_TONEMAP_CURVE_RED
+     */
+    ACAMERA_TONEMAP_CURVE_GREEN =                               // float[n*2]
+            ACAMERA_TONEMAP_START + 1,
+    /**
+     * <p>Tonemapping / contrast / gamma curve for the red
+     * channel, to use when ACAMERA_TONEMAP_MODE is
+     * CONTRAST_CURVE.</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>Type: float[n*2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Each channel's curve is defined by an array of control points:</p>
+     * <pre><code>ACAMERA_TONEMAP_CURVE_RED =
+     *   [ P0in, P0out, P1in, P1out, P2in, P2out, P3in, P3out, ..., PNin, PNout ]
+     * 2 &lt;= N &lt;= ACAMERA_TONEMAP_MAX_CURVE_POINTS</code></pre>
+     * <p>These are sorted in order of increasing <code>Pin</code>; it is
+     * required that input values 0.0 and 1.0 are included in the list to
+     * define a complete mapping. For input values between control points,
+     * the camera device must linearly interpolate between the control
+     * points.</p>
+     * <p>Each curve can have an independent number of points, and the number
+     * of points can be less than max (that is, the request doesn't have to
+     * always provide a curve with number of points equivalent to
+     * ACAMERA_TONEMAP_MAX_CURVE_POINTS).</p>
+     * <p>A few examples, and their corresponding graphical mappings; these
+     * only specify the red channel and the precision is limited to 4
+     * digits, for conciseness.</p>
+     * <p>Linear mapping:</p>
+     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [ 0, 0, 1.0, 1.0 ]
+     * </code></pre>
+     * <p><img alt="Linear mapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/linear_tonemap.png" /></p>
+     * <p>Invert mapping:</p>
+     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [ 0, 1.0, 1.0, 0 ]
+     * </code></pre>
+     * <p><img alt="Inverting mapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/inverse_tonemap.png" /></p>
+     * <p>Gamma 1/2.2 mapping, with 16 control points:</p>
+     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [
+     *   0.0000, 0.0000, 0.0667, 0.2920, 0.1333, 0.4002, 0.2000, 0.4812,
+     *   0.2667, 0.5484, 0.3333, 0.6069, 0.4000, 0.6594, 0.4667, 0.7072,
+     *   0.5333, 0.7515, 0.6000, 0.7928, 0.6667, 0.8317, 0.7333, 0.8685,
+     *   0.8000, 0.9035, 0.8667, 0.9370, 0.9333, 0.9691, 1.0000, 1.0000 ]
+     * </code></pre>
+     * <p><img alt="Gamma = 1/2.2 tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/gamma_tonemap.png" /></p>
+     * <p>Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:</p>
+     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [
+     *   0.0000, 0.0000, 0.0667, 0.2864, 0.1333, 0.4007, 0.2000, 0.4845,
+     *   0.2667, 0.5532, 0.3333, 0.6125, 0.4000, 0.6652, 0.4667, 0.7130,
+     *   0.5333, 0.7569, 0.6000, 0.7977, 0.6667, 0.8360, 0.7333, 0.8721,
+     *   0.8000, 0.9063, 0.8667, 0.9389, 0.9333, 0.9701, 1.0000, 1.0000 ]
+     * </code></pre>
+     * <p><img alt="sRGB tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p>
+     *
+     * @see ACAMERA_TONEMAP_CURVE_RED
+     * @see ACAMERA_TONEMAP_MAX_CURVE_POINTS
+     */
+    ACAMERA_TONEMAP_CURVE_RED =                                 // float[n*2]
+            ACAMERA_TONEMAP_START + 2,
+    /**
+     * <p>High-level global contrast/gamma/tonemapping control.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_tonemap_mode_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>When switching to an application-defined contrast curve by setting
+     * ACAMERA_TONEMAP_MODE to CONTRAST_CURVE, the curve is defined
+     * per-channel with a set of <code>(in, out)</code> points that specify the
+     * mapping from input high-bit-depth pixel value to the output
+     * low-bit-depth value.  Since the actual pixel ranges of both input
+     * and output may change depending on the camera pipeline, the values
+     * are specified by normalized floating-point numbers.</p>
+     * <p>More-complex color mapping operations such as 3D color look-up
+     * tables, selective chroma enhancement, or other non-linear color
+     * transforms will be disabled when ACAMERA_TONEMAP_MODE is
+     * CONTRAST_CURVE.</p>
+     * <p>When using either FAST or HIGH_QUALITY, the camera device will
+     * emit its own tonemap curve in android.tonemap.curve.
+     * These values are always available, and as close as possible to the
+     * actually used nonlinear/nonglobal transforms.</p>
+     * <p>If a request is sent with CONTRAST_CURVE with the camera device's
+     * provided curve in FAST or HIGH_QUALITY, the image's tonemap will be
+     * roughly the same.</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     */
+    ACAMERA_TONEMAP_MODE =                                      // byte (acamera_metadata_enum_android_tonemap_mode_t)
+            ACAMERA_TONEMAP_START + 3,
+    /**
+     * <p>Maximum number of supported points in the
+     * tonemap curve that can be used for android.tonemap.curve.</p>
+     *
+     * <p>Type: int32</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If the actual number of points provided by the application (in ACAMERA_TONEMAPCURVE_*) is
+     * less than this maximum, the camera device will resample the curve to its internal
+     * representation, using linear interpolation.</p>
+     * <p>The output curves in the result metadata may have a different number
+     * of points than the input curves, and will represent the actual
+     * hardware curves used as closely as possible when linearly interpolated.</p>
+     */
+    ACAMERA_TONEMAP_MAX_CURVE_POINTS =                          // int32
+            ACAMERA_TONEMAP_START + 4,
+    /**
+     * <p>List of tonemapping modes for ACAMERA_TONEMAP_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>Type: byte[n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always contain
+     * at least one of below mode combinations:</p>
+     * <ul>
+     * <li>CONTRAST_CURVE, FAST and HIGH_QUALITY</li>
+     * <li>GAMMA_VALUE, PRESET_CURVE, FAST and HIGH_QUALITY</li>
+     * </ul>
+     * <p>This includes all FULL level devices.</p>
+     */
+    ACAMERA_TONEMAP_AVAILABLE_TONE_MAP_MODES =                  // byte[n]
+            ACAMERA_TONEMAP_START + 5,
+    /**
+     * <p>Tonemapping curve to use when ACAMERA_TONEMAP_MODE is
+     * GAMMA_VALUE</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>Type: float</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>The tonemap curve will be defined the following formula:
+     * * OUT = pow(IN, 1.0 / gamma)
+     * where IN and OUT is the input pixel value scaled to range [0.0, 1.0],
+     * pow is the power function and gamma is the gamma value specified by this
+     * key.</p>
+     * <p>The same curve will be applied to all color channels. The camera device
+     * may clip the input gamma value to its supported range. The actual applied
+     * value will be returned in capture result.</p>
+     * <p>The valid range of gamma value varies on different devices, but values
+     * within [1.0, 5.0] are guaranteed not to be clipped.</p>
+     */
+    ACAMERA_TONEMAP_GAMMA =                                     // float
+            ACAMERA_TONEMAP_START + 6,
+    /**
+     * <p>Tonemapping curve to use when ACAMERA_TONEMAP_MODE is
+     * PRESET_CURVE</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_tonemap_preset_curve_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>The tonemap curve will be defined by specified standard.</p>
+     * <p>sRGB (approximated by 16 control points):</p>
+     * <p><img alt="sRGB tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p>
+     * <p>Rec. 709 (approximated by 16 control points):</p>
+     * <p><img alt="Rec. 709 tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/rec709_tonemap.png" /></p>
+     * <p>Note that above figures show a 16 control points approximation of preset
+     * curves. Camera devices may apply a different approximation to the curve.</p>
+     */
+    ACAMERA_TONEMAP_PRESET_CURVE =                              // byte (acamera_metadata_enum_android_tonemap_preset_curve_t)
+            ACAMERA_TONEMAP_START + 7,
+    ACAMERA_TONEMAP_END,
+
+    /**
+     * <p>Generally classifies the overall set of the camera device functionality.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_info_supported_hardware_level_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>The supported hardware level is a high-level description of the camera device's
+     * capabilities, summarizing several capabilities into one field.  Each level adds additional
+     * features to the previous one, and is always a strict superset of the previous level.
+     * The ordering is <code>LEGACY &lt; LIMITED &lt; FULL &lt; LEVEL_3</code>.</p>
+     * <p>Starting from <code>LEVEL_3</code>, the level enumerations are guaranteed to be in increasing
+     * numerical value as well. To check if a given device is at least at a given hardware level,
+     * the following code snippet can be used:</p>
+     * <pre><code>// Returns true if the device supports the required hardware level, or better.
+     * boolean isHardwareLevelSupported(CameraCharacteristics c, int requiredLevel) {
+     *     int deviceLevel = c.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
+     *     if (deviceLevel == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
+     *         return requiredLevel == deviceLevel;
+     *     }
+     *     // deviceLevel is not LEGACY, can use numerical sort
+     *     return requiredLevel &lt;= deviceLevel;
+     * }
+     * </code></pre>
+     * <p>At a high level, the levels are:</p>
+     * <ul>
+     * <li><code>LEGACY</code> devices operate in a backwards-compatibility mode for older
+     *   Android devices, and have very limited capabilities.</li>
+     * <li><code>LIMITED</code> devices represent the
+     *   baseline feature set, and may also include additional capabilities that are
+     *   subsets of <code>FULL</code>.</li>
+     * <li><code>FULL</code> devices additionally support per-frame manual control of sensor, flash, lens and
+     *   post-processing settings, and image capture at a high rate.</li>
+     * <li><code>LEVEL_3</code> devices additionally support YUV reprocessing and RAW image capture, along
+     *   with additional output stream configurations.</li>
+     * </ul>
+     * <p>See the individual level enums for full descriptions of the supported capabilities.  The
+     * ACAMERA_REQUEST_AVAILABLE_CAPABILITIES entry describes the device's capabilities at a
+     * finer-grain level, if needed. In addition, many controls have their available settings or
+     * ranges defined in individual metadata tag entries in this document.</p>
+     * <p>Some features are not part of any particular hardware level or capability and must be
+     * queried separately. These include:</p>
+     * <ul>
+     * <li>Calibrated timestamps (ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> REALTIME)</li>
+     * <li>Precision lens control (ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION <code>==</code> CALIBRATED)</li>
+     * <li>Face detection (ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES)</li>
+     * <li>Optical or electrical image stabilization
+     *   (ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION,
+     *    ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES)</li>
+     * </ul>
+     *
+     * @see ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES
+     * @see ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION
+     * @see ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * @see ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
+     * @see ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES
+     */
+    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL =                     // byte (acamera_metadata_enum_android_info_supported_hardware_level_t)
+            ACAMERA_INFO_START,
+    ACAMERA_INFO_END,
+
+    /**
+     * <p>Whether black-level compensation is locked
+     * to its current values, or is free to vary.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_black_level_lock_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Whether the black level offset was locked for this frame.  Should be
+     * ON if ACAMERA_BLACK_LEVEL_LOCK was ON in the capture request, unless
+     * a change in other capture settings forced the camera device to
+     * perform a black level reset.</p>
+     *
+     * @see ACAMERA_BLACK_LEVEL_LOCK
+     */
+    ACAMERA_BLACK_LEVEL_LOCK =                                  // byte (acamera_metadata_enum_android_black_level_lock_t)
+            ACAMERA_BLACK_LEVEL_START,
+    ACAMERA_BLACK_LEVEL_END,
+
+    /**
+     * <p>The frame number corresponding to the last request
+     * with which the output result (metadata + buffers) has been fully
+     * synchronized.</p>
+     *
+     * <p>Type: int64 (acamera_metadata_enum_android_sync_frame_number_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul></p>
+     *
+     * <p>When a request is submitted to the camera device, there is usually a
+     * delay of several frames before the controls get applied. A camera
+     * device may either choose to account for this delay by implementing a
+     * pipeline and carefully submit well-timed atomic control updates, or
+     * it may start streaming control changes that span over several frame
+     * boundaries.</p>
+     * <p>In the latter case, whenever a request's settings change relative to
+     * the previous submitted request, the full set of changes may take
+     * multiple frame durations to fully take effect. Some settings may
+     * take effect sooner (in less frame durations) than others.</p>
+     * <p>While a set of control changes are being propagated, this value
+     * will be CONVERGING.</p>
+     * <p>Once it is fully known that a set of control changes have been
+     * finished propagating, and the resulting updated control settings
+     * have been read back by the camera device, this value will be set
+     * to a non-negative frame number (corresponding to the request to
+     * which the results have synchronized to).</p>
+     * <p>Older camera device implementations may not have a way to detect
+     * when all camera controls have been applied, and will always set this
+     * value to UNKNOWN.</p>
+     * <p>FULL capability devices will always have this value set to the
+     * frame number of the request corresponding to this result.</p>
+     * <p><em>Further details</em>:</p>
+     * <ul>
+     * <li>Whenever a request differs from the last request, any future
+     * results not yet returned may have this value set to CONVERGING (this
+     * could include any in-progress captures not yet returned by the camera
+     * device, for more details see pipeline considerations below).</li>
+     * <li>Submitting a series of multiple requests that differ from the
+     * previous request (e.g. r1, r2, r3 s.t. r1 != r2 != r3)
+     * moves the new synchronization frame to the last non-repeating
+     * request (using the smallest frame number from the contiguous list of
+     * repeating requests).</li>
+     * <li>Submitting the same request repeatedly will not change this value
+     * to CONVERGING, if it was already a non-negative value.</li>
+     * <li>When this value changes to non-negative, that means that all of the
+     * metadata controls from the request have been applied, all of the
+     * metadata controls from the camera device have been read to the
+     * updated values (into the result), and all of the graphics buffers
+     * corresponding to this result are also synchronized to the request.</li>
+     * </ul>
+     * <p><em>Pipeline considerations</em>:</p>
+     * <p>Submitting a request with updated controls relative to the previously
+     * submitted requests may also invalidate the synchronization state
+     * of all the results corresponding to currently in-flight requests.</p>
+     * <p>In other words, results for this current request and up to
+     * ACAMERA_REQUEST_PIPELINE_MAX_DEPTH prior requests may have their
+     * ACAMERA_SYNC_FRAME_NUMBER change to CONVERGING.</p>
+     *
+     * @see ACAMERA_REQUEST_PIPELINE_MAX_DEPTH
+     * @see ACAMERA_SYNC_FRAME_NUMBER
+     */
+    ACAMERA_SYNC_FRAME_NUMBER =                                 // int64 (acamera_metadata_enum_android_sync_frame_number_t)
+            ACAMERA_SYNC_START,
+    /**
+     * <p>The maximum number of frames that can occur after a request
+     * (different than the previous) has been submitted, and before the
+     * result's state becomes synchronized.</p>
+     *
+     * <p>Type: int32 (acamera_metadata_enum_android_sync_max_latency_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This defines the maximum distance (in number of metadata results),
+     * between the frame number of the request that has new controls to apply
+     * and the frame number of the result that has all the controls applied.</p>
+     * <p>In other words this acts as an upper boundary for how many frames
+     * must occur before the camera device knows for a fact that the new
+     * submitted camera settings have been applied in outgoing frames.</p>
+     */
+    ACAMERA_SYNC_MAX_LATENCY =                                  // int32 (acamera_metadata_enum_android_sync_max_latency_t)
+            ACAMERA_SYNC_START + 1,
+    ACAMERA_SYNC_END,
+
+    /**
+     * <p>The available depth dataspace stream
+     * configurations that this camera device supports
+     * (i.e. format, width, height, output/input stream).</p>
+     *
+     * <p>Type: int32[n*4] (acamera_metadata_enum_android_depth_available_depth_stream_configurations_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>These are output stream configurations for use with
+     * dataSpace HAL_DATASPACE_DEPTH. The configurations are
+     * listed as <code>(format, width, height, input?)</code> tuples.</p>
+     * <p>Only devices that support depth output for at least
+     * the HAL_PIXEL_FORMAT_Y16 dense depth map may include
+     * this entry.</p>
+     * <p>A device that also supports the HAL_PIXEL_FORMAT_BLOB
+     * sparse depth point cloud must report a single entry for
+     * the format in this list as <code>(HAL_PIXEL_FORMAT_BLOB,
+     * android.depth.maxDepthSamples, 1, OUTPUT)</code> in addition to
+     * the entries for HAL_PIXEL_FORMAT_Y16.</p>
+     */
+    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS =       // int32[n*4] (acamera_metadata_enum_android_depth_available_depth_stream_configurations_t)
+            ACAMERA_DEPTH_START + 1,
+    /**
+     * <p>This lists the minimum frame duration for each
+     * format/size combination for depth output formats.</p>
+     *
+     * <p>Type: int64[4*n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>This should correspond to the frame duration when only that
+     * stream is active, with all processing (typically in android.*.mode)
+     * set to either OFF or FAST.</p>
+     * <p>When multiple streams are used in a request, the minimum frame
+     * duration will be max(individual stream min durations).</p>
+     * <p>The minimum frame duration of a stream (of a particular format, size)
+     * is the same regardless of whether the stream is input or output.</p>
+     * <p>See ACAMERA_SENSOR_FRAME_DURATION and
+     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for more details about
+     * calculating the max frame rate.</p>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     */
+    ACAMERA_DEPTH_AVAILABLE_DEPTH_MIN_FRAME_DURATIONS =         // int64[4*n]
+            ACAMERA_DEPTH_START + 2,
+    /**
+     * <p>This lists the maximum stall duration for each
+     * output format/size combination for depth streams.</p>
+     *
+     * <p>Type: int64[4*n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>A stall duration is how much extra time would get added
+     * to the normal minimum frame duration for a repeating request
+     * that has streams with non-zero stall.</p>
+     * <p>This functions similarly to
+     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for depth
+     * streams.</p>
+     * <p>All depth output stream formats may have a nonzero stall
+     * duration.</p>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
+     */
+    ACAMERA_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS =             // int64[4*n]
+            ACAMERA_DEPTH_START + 3,
+    /**
+     * <p>Indicates whether a capture request may target both a
+     * DEPTH16 / DEPTH_POINT_CLOUD output, and normal color outputs (such as
+     * YUV_420_888, JPEG, or RAW) simultaneously.</p>
+     *
+     * <p>Type: byte (acamera_metadata_enum_android_depth_depth_is_exclusive_t)</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If TRUE, including both depth and color outputs in a single
+     * capture request is not supported. An application must interleave color
+     * and depth requests.  If FALSE, a single request can target both types
+     * of output.</p>
+     * <p>Typically, this restriction exists on camera devices that
+     * need to emit a specific pattern or wavelength of light to
+     * measure depth values, which causes the color image to be
+     * corrupted during depth measurement.</p>
+     */
+    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE =                          // byte (acamera_metadata_enum_android_depth_depth_is_exclusive_t)
+            ACAMERA_DEPTH_START + 4,
+    ACAMERA_DEPTH_END,
+
+} acamera_metadata_tag_t;
+
+/**
+ * Enumeration definitions for the various entries that need them
+ */
+
+// ACAMERA_COLOR_CORRECTION_MODE
+typedef enum acamera_metadata_enum_acamera_color_correction_mode {
+    /**
+     * <p>Use the ACAMERA_COLOR_CORRECTION_TRANSFORM matrix
+     * and ACAMERA_COLOR_CORRECTION_GAINS to do color conversion.</p>
+     * <p>All advanced white balance adjustments (not specified
+     * by our white balance pipeline) must be disabled.</p>
+     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
+     * TRANSFORM_MATRIX is ignored. The camera device will override
+     * this value to either FAST or HIGH_QUALITY.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_MODE_TRANSFORM_MATRIX                   = 0,
+
+    /**
+     * <p>Color correction processing must not slow down
+     * capture rate relative to sensor raw output.</p>
+     * <p>Advanced white balance adjustments above and beyond
+     * the specified white balance pipeline may be applied.</p>
+     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
+     * the camera device uses the last frame's AWB values
+     * (or defaults if AWB has never been run).</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_MODE_FAST                               = 1,
+
+    /**
+     * <p>Color correction processing operates at improved
+     * quality but the capture rate might be reduced (relative to sensor
+     * raw output rate)</p>
+     * <p>Advanced white balance adjustments above and beyond
+     * the specified white balance pipeline may be applied.</p>
+     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
+     * the camera device uses the last frame's AWB values
+     * (or defaults if AWB has never been run).</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_MODE_HIGH_QUALITY                       = 2,
+
+} acamera_metadata_enum_android_color_correction_mode_t;
+
+// ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+typedef enum acamera_metadata_enum_acamera_color_correction_aberration_mode {
+    /**
+     * <p>No aberration correction is applied.</p>
+     */
+    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_OFF                     = 0,
+
+    /**
+     * <p>Aberration correction will not slow down capture rate
+     * relative to sensor raw output.</p>
+     */
+    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_FAST                    = 1,
+
+    /**
+     * <p>Aberration correction operates at improved quality but the capture rate might be
+     * reduced (relative to sensor raw output rate)</p>
+     */
+    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY            = 2,
+
+} acamera_metadata_enum_android_color_correction_aberration_mode_t;
+
+
+// ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+typedef enum acamera_metadata_enum_acamera_control_ae_antibanding_mode {
+    /**
+     * <p>The camera device will not adjust exposure duration to
+     * avoid banding problems.</p>
+     */
+    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_OFF                          = 0,
+
+    /**
+     * <p>The camera device will adjust exposure duration to
+     * avoid banding problems with 50Hz illumination sources.</p>
+     */
+    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_50HZ                         = 1,
+
+    /**
+     * <p>The camera device will adjust exposure duration to
+     * avoid banding problems with 60Hz illumination
+     * sources.</p>
+     */
+    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_60HZ                         = 2,
+
+    /**
+     * <p>The camera device will automatically adapt its
+     * antibanding routine to the current illumination
+     * condition. This is the default mode if AUTO is
+     * available on given camera device.</p>
+     */
+    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_AUTO                         = 3,
+
+} acamera_metadata_enum_android_control_ae_antibanding_mode_t;
+
+// ACAMERA_CONTROL_AE_LOCK
+typedef enum acamera_metadata_enum_acamera_control_ae_lock {
+    /**
+     * <p>Auto-exposure lock is disabled; the AE algorithm
+     * is free to update its parameters.</p>
+     */
+    ACAMERA_CONTROL_AE_LOCK_OFF                                      = 0,
+
+    /**
+     * <p>Auto-exposure lock is enabled; the AE algorithm
+     * must not update the exposure and sensitivity parameters
+     * while the lock is active.</p>
+     * <p>ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION setting changes
+     * will still take effect while auto-exposure is locked.</p>
+     * <p>Some rare LEGACY devices may not support
+     * this, in which case the value will always be overridden to OFF.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+     */
+    ACAMERA_CONTROL_AE_LOCK_ON                                       = 1,
+
+} acamera_metadata_enum_android_control_ae_lock_t;
+
+// ACAMERA_CONTROL_AE_MODE
+typedef enum acamera_metadata_enum_acamera_control_ae_mode {
+    /**
+     * <p>The camera device's autoexposure routine is disabled.</p>
+     * <p>The application-selected ACAMERA_SENSOR_EXPOSURE_TIME,
+     * ACAMERA_SENSOR_SENSITIVITY and
+     * ACAMERA_SENSOR_FRAME_DURATION are used by the camera
+     * device, along with ACAMERA_FLASH_* fields, if there's
+     * a flash unit for this camera device.</p>
+     * <p>Note that auto-white balance (AWB) and auto-focus (AF)
+     * behavior is device dependent when AE is in OFF mode.
+     * To have consistent behavior across different devices,
+     * it is recommended to either set AWB and AF to OFF mode
+     * or lock AWB and AF before setting AE to OFF.
+     * See ACAMERA_CONTROL_AWB_MODE, ACAMERA_CONTROL_AF_MODE,
+     * ACAMERA_CONTROL_AWB_LOCK, and ACAMERA_CONTROL_AF_TRIGGER
+     * for more details.</p>
+     * <p>LEGACY devices do not support the OFF mode and will
+     * override attempts to use this value to ON.</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AF_TRIGGER
+     * @see ACAMERA_CONTROL_AWB_LOCK
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_AE_MODE_OFF                                      = 0,
+
+    /**
+     * <p>The camera device's autoexposure routine is active,
+     * with no flash control.</p>
+     * <p>The application's values for
+     * ACAMERA_SENSOR_EXPOSURE_TIME,
+     * ACAMERA_SENSOR_SENSITIVITY, and
+     * ACAMERA_SENSOR_FRAME_DURATION are ignored. The
+     * application has control over the various
+     * ACAMERA_FLASH_* fields.</p>
+     *
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_AE_MODE_ON                                       = 1,
+
+    /**
+     * <p>Like ON, except that the camera device also controls
+     * the camera's flash unit, firing it in low-light
+     * conditions.</p>
+     * <p>The flash may be fired during a precapture sequence
+     * (triggered by ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER) and
+     * may be fired for captures for which the
+     * ACAMERA_CONTROL_CAPTURE_INTENT field is set to
+     * STILL_CAPTURE</p>
+     *
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_AE_MODE_ON_AUTO_FLASH                            = 2,
+
+    /**
+     * <p>Like ON, except that the camera device also controls
+     * the camera's flash unit, always firing it for still
+     * captures.</p>
+     * <p>The flash may be fired during a precapture sequence
+     * (triggered by ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER) and
+     * will always be fired for captures for which the
+     * ACAMERA_CONTROL_CAPTURE_INTENT field is set to
+     * STILL_CAPTURE</p>
+     *
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_AE_MODE_ON_ALWAYS_FLASH                          = 3,
+
+    /**
+     * <p>Like ON_AUTO_FLASH, but with automatic red eye
+     * reduction.</p>
+     * <p>If deemed necessary by the camera device, a red eye
+     * reduction flash will fire during the precapture
+     * sequence.</p>
+     */
+    ACAMERA_CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE                     = 4,
+
+} acamera_metadata_enum_android_control_ae_mode_t;
+
+// ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+typedef enum acamera_metadata_enum_acamera_control_ae_precapture_trigger {
+    /**
+     * <p>The trigger is idle.</p>
+     */
+    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_IDLE                       = 0,
+
+    /**
+     * <p>The precapture metering sequence will be started
+     * by the camera device.</p>
+     * <p>The exact effect of the precapture trigger depends on
+     * the current AE mode and state.</p>
+     */
+    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_START                      = 1,
+
+    /**
+     * <p>The camera device will cancel any currently active or completed
+     * precapture metering sequence, the auto-exposure routine will return to its
+     * initial state.</p>
+     */
+    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL                     = 2,
+
+} acamera_metadata_enum_android_control_ae_precapture_trigger_t;
+
+// ACAMERA_CONTROL_AF_MODE
+typedef enum acamera_metadata_enum_acamera_control_af_mode {
+    /**
+     * <p>The auto-focus routine does not control the lens;
+     * ACAMERA_LENS_FOCUS_DISTANCE is controlled by the
+     * application.</p>
+     *
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     */
+    ACAMERA_CONTROL_AF_MODE_OFF                                      = 0,
+
+    /**
+     * <p>Basic automatic focus mode.</p>
+     * <p>In this mode, the lens does not move unless
+     * the autofocus trigger action is called. When that trigger
+     * is activated, AF will transition to ACTIVE_SCAN, then to
+     * the outcome of the scan (FOCUSED or NOT_FOCUSED).</p>
+     * <p>Always supported if lens is not fixed focus.</p>
+     * <p>Use ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE to determine if lens
+     * is fixed-focus.</p>
+     * <p>Triggering AF_CANCEL resets the lens position to default,
+     * and sets the AF state to INACTIVE.</p>
+     *
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_CONTROL_AF_MODE_AUTO                                     = 1,
+
+    /**
+     * <p>Close-up focusing mode.</p>
+     * <p>In this mode, the lens does not move unless the
+     * autofocus trigger action is called. When that trigger is
+     * activated, AF will transition to ACTIVE_SCAN, then to
+     * the outcome of the scan (FOCUSED or NOT_FOCUSED). This
+     * mode is optimized for focusing on objects very close to
+     * the camera.</p>
+     * <p>When that trigger is activated, AF will transition to
+     * ACTIVE_SCAN, then to the outcome of the scan (FOCUSED or
+     * NOT_FOCUSED). Triggering cancel AF resets the lens
+     * position to default, and sets the AF state to
+     * INACTIVE.</p>
+     */
+    ACAMERA_CONTROL_AF_MODE_MACRO                                    = 2,
+
+    /**
+     * <p>In this mode, the AF algorithm modifies the lens
+     * position continually to attempt to provide a
+     * constantly-in-focus image stream.</p>
+     * <p>The focusing behavior should be suitable for good quality
+     * video recording; typically this means slower focus
+     * movement and no overshoots. When the AF trigger is not
+     * involved, the AF algorithm should start in INACTIVE state,
+     * and then transition into PASSIVE_SCAN and PASSIVE_FOCUSED
+     * states as appropriate. When the AF trigger is activated,
+     * the algorithm should immediately transition into
+     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
+     * lens position until a cancel AF trigger is received.</p>
+     * <p>Once cancel is received, the algorithm should transition
+     * back to INACTIVE and resume passive scan. Note that this
+     * behavior is not identical to CONTINUOUS_PICTURE, since an
+     * ongoing PASSIVE_SCAN must immediately be
+     * canceled.</p>
+     */
+    ACAMERA_CONTROL_AF_MODE_CONTINUOUS_VIDEO                         = 3,
+
+    /**
+     * <p>In this mode, the AF algorithm modifies the lens
+     * position continually to attempt to provide a
+     * constantly-in-focus image stream.</p>
+     * <p>The focusing behavior should be suitable for still image
+     * capture; typically this means focusing as fast as
+     * possible. When the AF trigger is not involved, the AF
+     * algorithm should start in INACTIVE state, and then
+     * transition into PASSIVE_SCAN and PASSIVE_FOCUSED states as
+     * appropriate as it attempts to maintain focus. When the AF
+     * trigger is activated, the algorithm should finish its
+     * PASSIVE_SCAN if active, and then transition into
+     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
+     * lens position until a cancel AF trigger is received.</p>
+     * <p>When the AF cancel trigger is activated, the algorithm
+     * should transition back to INACTIVE and then act as if it
+     * has just been started.</p>
+     */
+    ACAMERA_CONTROL_AF_MODE_CONTINUOUS_PICTURE                       = 4,
+
+    /**
+     * <p>Extended depth of field (digital focus) mode.</p>
+     * <p>The camera device will produce images with an extended
+     * depth of field automatically; no special focusing
+     * operations need to be done before taking a picture.</p>
+     * <p>AF triggers are ignored, and the AF state will always be
+     * INACTIVE.</p>
+     */
+    ACAMERA_CONTROL_AF_MODE_EDOF                                     = 5,
+
+} acamera_metadata_enum_android_control_af_mode_t;
+
+// ACAMERA_CONTROL_AF_TRIGGER
+typedef enum acamera_metadata_enum_acamera_control_af_trigger {
+    /**
+     * <p>The trigger is idle.</p>
+     */
+    ACAMERA_CONTROL_AF_TRIGGER_IDLE                                  = 0,
+
+    /**
+     * <p>Autofocus will trigger now.</p>
+     */
+    ACAMERA_CONTROL_AF_TRIGGER_START                                 = 1,
+
+    /**
+     * <p>Autofocus will return to its initial
+     * state, and cancel any currently active trigger.</p>
+     */
+    ACAMERA_CONTROL_AF_TRIGGER_CANCEL                                = 2,
+
+} acamera_metadata_enum_android_control_af_trigger_t;
+
+// ACAMERA_CONTROL_AWB_LOCK
+typedef enum acamera_metadata_enum_acamera_control_awb_lock {
+    /**
+     * <p>Auto-white balance lock is disabled; the AWB
+     * algorithm is free to update its parameters if in AUTO
+     * mode.</p>
+     */
+    ACAMERA_CONTROL_AWB_LOCK_OFF                                     = 0,
+
+    /**
+     * <p>Auto-white balance lock is enabled; the AWB
+     * algorithm will not update its parameters while the lock
+     * is active.</p>
+     */
+    ACAMERA_CONTROL_AWB_LOCK_ON                                      = 1,
+
+} acamera_metadata_enum_android_control_awb_lock_t;
+
+// ACAMERA_CONTROL_AWB_MODE
+typedef enum acamera_metadata_enum_acamera_control_awb_mode {
+    /**
+     * <p>The camera device's auto-white balance routine is disabled.</p>
+     * <p>The application-selected color transform matrix
+     * (ACAMERA_COLOR_CORRECTION_TRANSFORM) and gains
+     * (ACAMERA_COLOR_CORRECTION_GAINS) are used by the camera
+     * device for manual white balance control.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_OFF                                     = 0,
+
+    /**
+     * <p>The camera device's auto-white balance routine is active.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_AUTO                                    = 1,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses incandescent light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>While the exact white balance transforms are up to the
+     * camera device, they will approximately match the CIE
+     * standard illuminant A.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_INCANDESCENT                            = 2,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses fluorescent light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>While the exact white balance transforms are up to the
+     * camera device, they will approximately match the CIE
+     * standard illuminant F2.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_FLUORESCENT                             = 3,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses warm fluorescent light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>While the exact white balance transforms are up to the
+     * camera device, they will approximately match the CIE
+     * standard illuminant F4.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_WARM_FLUORESCENT                        = 4,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses daylight light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>While the exact white balance transforms are up to the
+     * camera device, they will approximately match the CIE
+     * standard illuminant D65.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_DAYLIGHT                                = 5,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses cloudy daylight light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_CLOUDY_DAYLIGHT                         = 6,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses twilight light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_TWILIGHT                                = 7,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses shade light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_SHADE                                   = 8,
+
+} acamera_metadata_enum_android_control_awb_mode_t;
+
+// ACAMERA_CONTROL_CAPTURE_INTENT
+typedef enum acamera_metadata_enum_acamera_control_capture_intent {
+    /**
+     * <p>The goal of this request doesn't fall into the other
+     * categories. The camera device will default to preview-like
+     * behavior.</p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_CUSTOM                            = 0,
+
+    /**
+     * <p>This request is for a preview-like use case.</p>
+     * <p>The precapture trigger may be used to start off a metering
+     * w/flash sequence.</p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_PREVIEW                           = 1,
+
+    /**
+     * <p>This request is for a still capture-type
+     * use case.</p>
+     * <p>If the flash unit is under automatic control, it may fire as needed.</p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_STILL_CAPTURE                     = 2,
+
+    /**
+     * <p>This request is for a video recording
+     * use case.</p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_VIDEO_RECORD                      = 3,
+
+    /**
+     * <p>This request is for a video snapshot (still
+     * image while recording video) use case.</p>
+     * <p>The camera device should take the highest-quality image
+     * possible (given the other settings) without disrupting the
+     * frame rate of video recording.  </p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT                    = 4,
+
+    /**
+     * <p>This request is for a ZSL usecase; the
+     * application will stream full-resolution images and
+     * reprocess one or several later for a final
+     * capture.</p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG                  = 5,
+
+    /**
+     * <p>This request is for manual capture use case where
+     * the applications want to directly control the capture parameters.</p>
+     * <p>For example, the application may wish to manually control
+     * ACAMERA_SENSOR_EXPOSURE_TIME, ACAMERA_SENSOR_SENSITIVITY, etc.</p>
+     *
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_MANUAL                            = 6,
+
+} acamera_metadata_enum_android_control_capture_intent_t;
+
+// ACAMERA_CONTROL_EFFECT_MODE
+typedef enum acamera_metadata_enum_acamera_control_effect_mode {
+    /**
+     * <p>No color effect will be applied.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_OFF                                  = 0,
+
+    /**
+     * <p>A "monocolor" effect where the image is mapped into
+     * a single color.</p>
+     * <p>This will typically be grayscale.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_MONO                                 = 1,
+
+    /**
+     * <p>A "photo-negative" effect where the image's colors
+     * are inverted.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_NEGATIVE                             = 2,
+
+    /**
+     * <p>A "solarisation" effect (Sabattier effect) where the
+     * image is wholly or partially reversed in
+     * tone.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_SOLARIZE                             = 3,
+
+    /**
+     * <p>A "sepia" effect where the image is mapped into warm
+     * gray, red, and brown tones.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_SEPIA                                = 4,
+
+    /**
+     * <p>A "posterization" effect where the image uses
+     * discrete regions of tone rather than a continuous
+     * gradient of tones.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_POSTERIZE                            = 5,
+
+    /**
+     * <p>A "whiteboard" effect where the image is typically displayed
+     * as regions of white, with black or grey details.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_WHITEBOARD                           = 6,
+
+    /**
+     * <p>A "blackboard" effect where the image is typically displayed
+     * as regions of black, with white or grey details.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_BLACKBOARD                           = 7,
+
+    /**
+     * <p>An "aqua" effect where a blue hue is added to the image.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_AQUA                                 = 8,
+
+} acamera_metadata_enum_android_control_effect_mode_t;
+
+// ACAMERA_CONTROL_MODE
+typedef enum acamera_metadata_enum_acamera_control_mode {
+    /**
+     * <p>Full application control of pipeline.</p>
+     * <p>All control by the device's metering and focusing (3A)
+     * routines is disabled, and no other settings in
+     * ACAMERA_CONTROL_* have any effect, except that
+     * ACAMERA_CONTROL_CAPTURE_INTENT may be used by the camera
+     * device to select post-processing values for processing
+     * blocks that do not allow for manual control, or are not
+     * exposed by the camera API.</p>
+     * <p>However, the camera device's 3A routines may continue to
+     * collect statistics and update their internal state so that
+     * when control is switched to AUTO mode, good control values
+     * can be immediately applied.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_MODE_OFF                                         = 0,
+
+    /**
+     * <p>Use settings for each individual 3A routine.</p>
+     * <p>Manual control of capture parameters is disabled. All
+     * controls in ACAMERA_CONTROL_* besides sceneMode take
+     * effect.</p>
+     */
+    ACAMERA_CONTROL_MODE_AUTO                                        = 1,
+
+    /**
+     * <p>Use a specific scene mode.</p>
+     * <p>Enabling this disables control.aeMode, control.awbMode and
+     * control.afMode controls; the camera device will ignore
+     * those settings while USE_SCENE_MODE is active (except for
+     * FACE_PRIORITY scene mode). Other control entries are still active.
+     * This setting can only be used if scene mode is supported (i.e.
+     * ACAMERA_CONTROL_AVAILABLE_SCENE_MODES
+     * contain some modes other than DISABLED).</p>
+     *
+     * @see ACAMERA_CONTROL_AVAILABLE_SCENE_MODES
+     */
+    ACAMERA_CONTROL_MODE_USE_SCENE_MODE                              = 2,
+
+    /**
+     * <p>Same as OFF mode, except that this capture will not be
+     * used by camera device background auto-exposure, auto-white balance and
+     * auto-focus algorithms (3A) to update their statistics.</p>
+     * <p>Specifically, the 3A routines are locked to the last
+     * values set from a request with AUTO, OFF, or
+     * USE_SCENE_MODE, and any statistics or state updates
+     * collected from manual captures with OFF_KEEP_STATE will be
+     * discarded by the camera device.</p>
+     */
+    ACAMERA_CONTROL_MODE_OFF_KEEP_STATE                              = 3,
+
+} acamera_metadata_enum_android_control_mode_t;
+
+// ACAMERA_CONTROL_SCENE_MODE
+typedef enum acamera_metadata_enum_acamera_control_scene_mode {
+    /**
+     * <p>Indicates that no scene modes are set for a given capture request.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_DISABLED                              = 0,
+
+    /**
+     * <p>If face detection support exists, use face
+     * detection data for auto-focus, auto-white balance, and
+     * auto-exposure routines.</p>
+     * <p>If face detection statistics are disabled
+     * (i.e. ACAMERA_STATISTICS_FACE_DETECT_MODE is set to OFF),
+     * this should still operate correctly (but will not return
+     * face detection statistics to the framework).</p>
+     * <p>Unlike the other scene modes, ACAMERA_CONTROL_AE_MODE,
+     * ACAMERA_CONTROL_AWB_MODE, and ACAMERA_CONTROL_AF_MODE
+     * remain active when FACE_PRIORITY is set.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     */
+    ACAMERA_CONTROL_SCENE_MODE_FACE_PRIORITY                         = 1,
+
+    /**
+     * <p>Optimized for photos of quickly moving objects.</p>
+     * <p>Similar to SPORTS.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_ACTION                                = 2,
+
+    /**
+     * <p>Optimized for still photos of people.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_PORTRAIT                              = 3,
+
+    /**
+     * <p>Optimized for photos of distant macroscopic objects.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_LANDSCAPE                             = 4,
+
+    /**
+     * <p>Optimized for low-light settings.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_NIGHT                                 = 5,
+
+    /**
+     * <p>Optimized for still photos of people in low-light
+     * settings.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_NIGHT_PORTRAIT                        = 6,
+
+    /**
+     * <p>Optimized for dim, indoor settings where flash must
+     * remain off.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_THEATRE                               = 7,
+
+    /**
+     * <p>Optimized for bright, outdoor beach settings.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_BEACH                                 = 8,
+
+    /**
+     * <p>Optimized for bright, outdoor settings containing snow.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_SNOW                                  = 9,
+
+    /**
+     * <p>Optimized for scenes of the setting sun.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_SUNSET                                = 10,
+
+    /**
+     * <p>Optimized to avoid blurry photos due to small amounts of
+     * device motion (for example: due to hand shake).</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_STEADYPHOTO                           = 11,
+
+    /**
+     * <p>Optimized for nighttime photos of fireworks.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_FIREWORKS                             = 12,
+
+    /**
+     * <p>Optimized for photos of quickly moving people.</p>
+     * <p>Similar to ACTION.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_SPORTS                                = 13,
+
+    /**
+     * <p>Optimized for dim, indoor settings with multiple moving
+     * people.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_PARTY                                 = 14,
+
+    /**
+     * <p>Optimized for dim settings where the main light source
+     * is a flame.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_CANDLELIGHT                           = 15,
+
+    /**
+     * <p>Optimized for accurately capturing a photo of barcode
+     * for use by camera applications that wish to read the
+     * barcode value.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_BARCODE                               = 16,
+
+    /**
+     * <p>Turn on a device-specific high dynamic range (HDR) mode.</p>
+     * <p>In this scene mode, the camera device captures images
+     * that keep a larger range of scene illumination levels
+     * visible in the final image. For example, when taking a
+     * picture of a object in front of a bright window, both
+     * the object and the scene through the window may be
+     * visible when using HDR mode, while in normal AUTO mode,
+     * one or the other may be poorly exposed. As a tradeoff,
+     * HDR mode generally takes much longer to capture a single
+     * image, has no user control, and may have other artifacts
+     * depending on the HDR method used.</p>
+     * <p>Therefore, HDR captures operate at a much slower rate
+     * than regular captures.</p>
+     * <p>In this mode, on LIMITED or FULL devices, when a request
+     * is made with a ACAMERA_CONTROL_CAPTURE_INTENT of
+     * STILL_CAPTURE, the camera device will capture an image
+     * using a high dynamic range capture technique.  On LEGACY
+     * devices, captures that target a JPEG-format output will
+     * be captured with HDR, and the capture intent is not
+     * relevant.</p>
+     * <p>The HDR capture may involve the device capturing a burst
+     * of images internally and combining them into one, or it
+     * may involve the device using specialized high dynamic
+     * range capture hardware. In all cases, a single image is
+     * produced in response to a capture request submitted
+     * while in HDR mode.</p>
+     * <p>Since substantial post-processing is generally needed to
+     * produce an HDR image, only YUV, PRIVATE, and JPEG
+     * outputs are supported for LIMITED/FULL device HDR
+     * captures, and only JPEG outputs are supported for LEGACY
+     * HDR captures. Using a RAW output for HDR capture is not
+     * supported.</p>
+     * <p>Some devices may also support always-on HDR, which
+     * applies HDR processing at full frame rate.  For these
+     * devices, intents other than STILL_CAPTURE will also
+     * produce an HDR output with no frame rate impact compared
+     * to normal operation, though the quality may be lower
+     * than for STILL_CAPTURE intents.</p>
+     * <p>If SCENE_MODE_HDR is used with unsupported output types
+     * or capture intents, the images captured will be as if
+     * the SCENE_MODE was not enabled at all.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_SCENE_MODE_HDR                                   = 18,
+
+} acamera_metadata_enum_android_control_scene_mode_t;
+
+// ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+typedef enum acamera_metadata_enum_acamera_control_video_stabilization_mode {
+    /**
+     * <p>Video stabilization is disabled.</p>
+     */
+    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE_OFF                     = 0,
+
+    /**
+     * <p>Video stabilization is enabled.</p>
+     */
+    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE_ON                      = 1,
+
+} acamera_metadata_enum_android_control_video_stabilization_mode_t;
+
+// ACAMERA_CONTROL_AE_STATE
+typedef enum acamera_metadata_enum_acamera_control_ae_state {
+    /**
+     * <p>AE is off or recently reset.</p>
+     * <p>When a camera device is opened, it starts in
+     * this state. This is a transient state, the camera device may skip reporting
+     * this state in capture result.</p>
+     */
+    ACAMERA_CONTROL_AE_STATE_INACTIVE                                = 0,
+
+    /**
+     * <p>AE doesn't yet have a good set of control values
+     * for the current scene.</p>
+     * <p>This is a transient state, the camera device may skip
+     * reporting this state in capture result.</p>
+     */
+    ACAMERA_CONTROL_AE_STATE_SEARCHING                               = 1,
+
+    /**
+     * <p>AE has a good set of control values for the
+     * current scene.</p>
+     */
+    ACAMERA_CONTROL_AE_STATE_CONVERGED                               = 2,
+
+    /**
+     * <p>AE has been locked.</p>
+     */
+    ACAMERA_CONTROL_AE_STATE_LOCKED                                  = 3,
+
+    /**
+     * <p>AE has a good set of control values, but flash
+     * needs to be fired for good quality still
+     * capture.</p>
+     */
+    ACAMERA_CONTROL_AE_STATE_FLASH_REQUIRED                          = 4,
+
+    /**
+     * <p>AE has been asked to do a precapture sequence
+     * and is currently executing it.</p>
+     * <p>Precapture can be triggered through setting
+     * ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER to START. Currently
+     * active and completed (if it causes camera device internal AE lock) precapture
+     * metering sequence can be canceled through setting
+     * ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER to CANCEL.</p>
+     * <p>Once PRECAPTURE completes, AE will transition to CONVERGED
+     * or FLASH_REQUIRED as appropriate. This is a transient
+     * state, the camera device may skip reporting this state in
+     * capture result.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     */
+    ACAMERA_CONTROL_AE_STATE_PRECAPTURE                              = 5,
+
+} acamera_metadata_enum_android_control_ae_state_t;
+
+// ACAMERA_CONTROL_AF_STATE
+typedef enum acamera_metadata_enum_acamera_control_af_state {
+    /**
+     * <p>AF is off or has not yet tried to scan/been asked
+     * to scan.</p>
+     * <p>When a camera device is opened, it starts in this
+     * state. This is a transient state, the camera device may
+     * skip reporting this state in capture
+     * result.</p>
+     */
+    ACAMERA_CONTROL_AF_STATE_INACTIVE                                = 0,
+
+    /**
+     * <p>AF is currently performing an AF scan initiated the
+     * camera device in a continuous autofocus mode.</p>
+     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
+     * state, the camera device may skip reporting this state in
+     * capture result.</p>
+     */
+    ACAMERA_CONTROL_AF_STATE_PASSIVE_SCAN                            = 1,
+
+    /**
+     * <p>AF currently believes it is in focus, but may
+     * restart scanning at any time.</p>
+     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
+     * state, the camera device may skip reporting this state in
+     * capture result.</p>
+     */
+    ACAMERA_CONTROL_AF_STATE_PASSIVE_FOCUSED                         = 2,
+
+    /**
+     * <p>AF is performing an AF scan because it was
+     * triggered by AF trigger.</p>
+     * <p>Only used by AUTO or MACRO AF modes. This is a transient
+     * state, the camera device may skip reporting this state in
+     * capture result.</p>
+     */
+    ACAMERA_CONTROL_AF_STATE_ACTIVE_SCAN                             = 3,
+
+    /**
+     * <p>AF believes it is focused correctly and has locked
+     * focus.</p>
+     * <p>This state is reached only after an explicit START AF trigger has been
+     * sent (ACAMERA_CONTROL_AF_TRIGGER), when good focus has been obtained.</p>
+     * <p>The lens will remain stationary until the AF mode (ACAMERA_CONTROL_AF_MODE) is changed or
+     * a new AF trigger is sent to the camera device (ACAMERA_CONTROL_AF_TRIGGER).</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AF_TRIGGER
+     */
+    ACAMERA_CONTROL_AF_STATE_FOCUSED_LOCKED                          = 4,
+
+    /**
+     * <p>AF has failed to focus successfully and has locked
+     * focus.</p>
+     * <p>This state is reached only after an explicit START AF trigger has been
+     * sent (ACAMERA_CONTROL_AF_TRIGGER), when good focus cannot be obtained.</p>
+     * <p>The lens will remain stationary until the AF mode (ACAMERA_CONTROL_AF_MODE) is changed or
+     * a new AF trigger is sent to the camera device (ACAMERA_CONTROL_AF_TRIGGER).</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AF_TRIGGER
+     */
+    ACAMERA_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED                      = 5,
+
+    /**
+     * <p>AF finished a passive scan without finding focus,
+     * and may restart scanning at any time.</p>
+     * <p>Only used by CONTINUOUS_* AF modes. This is a transient state, the camera
+     * device may skip reporting this state in capture result.</p>
+     * <p>LEGACY camera devices do not support this state. When a passive
+     * scan has finished, it will always go to PASSIVE_FOCUSED.</p>
+     */
+    ACAMERA_CONTROL_AF_STATE_PASSIVE_UNFOCUSED                       = 6,
+
+} acamera_metadata_enum_android_control_af_state_t;
+
+// ACAMERA_CONTROL_AWB_STATE
+typedef enum acamera_metadata_enum_acamera_control_awb_state {
+    /**
+     * <p>AWB is not in auto mode, or has not yet started metering.</p>
+     * <p>When a camera device is opened, it starts in this
+     * state. This is a transient state, the camera device may
+     * skip reporting this state in capture
+     * result.</p>
+     */
+    ACAMERA_CONTROL_AWB_STATE_INACTIVE                               = 0,
+
+    /**
+     * <p>AWB doesn't yet have a good set of control
+     * values for the current scene.</p>
+     * <p>This is a transient state, the camera device
+     * may skip reporting this state in capture result.</p>
+     */
+    ACAMERA_CONTROL_AWB_STATE_SEARCHING                              = 1,
+
+    /**
+     * <p>AWB has a good set of control values for the
+     * current scene.</p>
+     */
+    ACAMERA_CONTROL_AWB_STATE_CONVERGED                              = 2,
+
+    /**
+     * <p>AWB has been locked.</p>
+     */
+    ACAMERA_CONTROL_AWB_STATE_LOCKED                                 = 3,
+
+} acamera_metadata_enum_android_control_awb_state_t;
+
+// ACAMERA_CONTROL_AE_LOCK_AVAILABLE
+typedef enum acamera_metadata_enum_acamera_control_ae_lock_available {
+    ACAMERA_CONTROL_AE_LOCK_AVAILABLE_FALSE                          = 0,
+
+    ACAMERA_CONTROL_AE_LOCK_AVAILABLE_TRUE                           = 1,
+
+} acamera_metadata_enum_android_control_ae_lock_available_t;
+
+// ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
+typedef enum acamera_metadata_enum_acamera_control_awb_lock_available {
+    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE_FALSE                         = 0,
+
+    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE_TRUE                          = 1,
+
+} acamera_metadata_enum_android_control_awb_lock_available_t;
+
+// ACAMERA_CONTROL_ENABLE_ZSL
+typedef enum acamera_metadata_enum_acamera_control_enable_zsl {
+    /**
+     * <p>Requests with ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE must be captured
+     * after previous requests.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_ENABLE_ZSL_FALSE                                 = 0,
+
+    /**
+     * <p>Requests with ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE may or may not be
+     * captured before previous requests.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_ENABLE_ZSL_TRUE                                  = 1,
+
+} acamera_metadata_enum_android_control_enable_zsl_t;
+
+
+
+// ACAMERA_EDGE_MODE
+typedef enum acamera_metadata_enum_acamera_edge_mode {
+    /**
+     * <p>No edge enhancement is applied.</p>
+     */
+    ACAMERA_EDGE_MODE_OFF                                            = 0,
+
+    /**
+     * <p>Apply edge enhancement at a quality level that does not slow down frame rate
+     * relative to sensor output. It may be the same as OFF if edge enhancement will
+     * slow down frame rate relative to sensor.</p>
+     */
+    ACAMERA_EDGE_MODE_FAST                                           = 1,
+
+    /**
+     * <p>Apply high-quality edge enhancement, at a cost of possibly reduced output frame rate.</p>
+     */
+    ACAMERA_EDGE_MODE_HIGH_QUALITY                                   = 2,
+
+    /**
+     * <p>Edge enhancement is applied at different levels for different output streams,
+     * based on resolution. Streams at maximum recording resolution (see {@link
+     * ACameraDevice_createCaptureSession}) or below have
+     * edge enhancement applied, while higher-resolution streams have no edge enhancement
+     * applied. The level of edge enhancement for low-resolution streams is tuned so that
+     * frame rate is not impacted, and the quality is equal to or better than FAST (since it
+     * is only applied to lower-resolution outputs, quality may improve from FAST).</p>
+     * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
+     * with YUV or PRIVATE reprocessing, where the application continuously captures
+     * high-resolution intermediate buffers into a circular buffer, from which a final image is
+     * produced via reprocessing when a user takes a picture.  For such a use case, the
+     * high-resolution buffers must not have edge enhancement applied to maximize efficiency of
+     * preview and to avoid double-applying enhancement when reprocessed, while low-resolution
+     * buffers (used for recording or preview, generally) need edge enhancement applied for
+     * reasonable preview quality.</p>
+     * <p>This mode is guaranteed to be supported by devices that support either the
+     * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
+     * (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES lists either of those capabilities) and it will
+     * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_EDGE_MODE_ZERO_SHUTTER_LAG                               = 3,
+
+} acamera_metadata_enum_android_edge_mode_t;
+
+
+// ACAMERA_FLASH_MODE
+typedef enum acamera_metadata_enum_acamera_flash_mode {
+    /**
+     * <p>Do not fire the flash for this capture.</p>
+     */
+    ACAMERA_FLASH_MODE_OFF                                           = 0,
+
+    /**
+     * <p>If the flash is available and charged, fire flash
+     * for this capture.</p>
+     */
+    ACAMERA_FLASH_MODE_SINGLE                                        = 1,
+
+    /**
+     * <p>Transition flash to continuously on.</p>
+     */
+    ACAMERA_FLASH_MODE_TORCH                                         = 2,
+
+} acamera_metadata_enum_android_flash_mode_t;
+
+// ACAMERA_FLASH_STATE
+typedef enum acamera_metadata_enum_acamera_flash_state {
+    /**
+     * <p>No flash on camera.</p>
+     */
+    ACAMERA_FLASH_STATE_UNAVAILABLE                                  = 0,
+
+    /**
+     * <p>Flash is charging and cannot be fired.</p>
+     */
+    ACAMERA_FLASH_STATE_CHARGING                                     = 1,
+
+    /**
+     * <p>Flash is ready to fire.</p>
+     */
+    ACAMERA_FLASH_STATE_READY                                        = 2,
+
+    /**
+     * <p>Flash fired for this capture.</p>
+     */
+    ACAMERA_FLASH_STATE_FIRED                                        = 3,
+
+    /**
+     * <p>Flash partially illuminated this frame.</p>
+     * <p>This is usually due to the next or previous frame having
+     * the flash fire, and the flash spilling into this capture
+     * due to hardware limitations.</p>
+     */
+    ACAMERA_FLASH_STATE_PARTIAL                                      = 4,
+
+} acamera_metadata_enum_android_flash_state_t;
+
+
+// ACAMERA_FLASH_INFO_AVAILABLE
+typedef enum acamera_metadata_enum_acamera_flash_info_available {
+    ACAMERA_FLASH_INFO_AVAILABLE_FALSE                               = 0,
+
+    ACAMERA_FLASH_INFO_AVAILABLE_TRUE                                = 1,
+
+} acamera_metadata_enum_android_flash_info_available_t;
+
+
+// ACAMERA_HOT_PIXEL_MODE
+typedef enum acamera_metadata_enum_acamera_hot_pixel_mode {
+    /**
+     * <p>No hot pixel correction is applied.</p>
+     * <p>The frame rate must not be reduced relative to sensor raw output
+     * for this option.</p>
+     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
+     *
+     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+     */
+    ACAMERA_HOT_PIXEL_MODE_OFF                                       = 0,
+
+    /**
+     * <p>Hot pixel correction is applied, without reducing frame
+     * rate relative to sensor raw output.</p>
+     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
+     *
+     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+     */
+    ACAMERA_HOT_PIXEL_MODE_FAST                                      = 1,
+
+    /**
+     * <p>High-quality hot pixel correction is applied, at a cost
+     * of possibly reduced frame rate relative to sensor raw output.</p>
+     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
+     *
+     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+     */
+    ACAMERA_HOT_PIXEL_MODE_HIGH_QUALITY                              = 2,
+
+} acamera_metadata_enum_android_hot_pixel_mode_t;
+
+
+
+// ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
+typedef enum acamera_metadata_enum_acamera_lens_optical_stabilization_mode {
+    /**
+     * <p>Optical stabilization is unavailable.</p>
+     */
+    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE_OFF                      = 0,
+
+    /**
+     * <p>Optical stabilization is enabled.</p>
+     */
+    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE_ON                       = 1,
+
+} acamera_metadata_enum_android_lens_optical_stabilization_mode_t;
+
+// ACAMERA_LENS_FACING
+typedef enum acamera_metadata_enum_acamera_lens_facing {
+    /**
+     * <p>The camera device faces the same direction as the device's screen.</p>
+     */
+    ACAMERA_LENS_FACING_FRONT                                        = 0,
+
+    /**
+     * <p>The camera device faces the opposite direction as the device's screen.</p>
+     */
+    ACAMERA_LENS_FACING_BACK                                         = 1,
+
+    /**
+     * <p>The camera device is an external camera, and has no fixed facing relative to the
+     * device's screen.</p>
+     */
+    ACAMERA_LENS_FACING_EXTERNAL                                     = 2,
+
+} acamera_metadata_enum_android_lens_facing_t;
+
+// ACAMERA_LENS_STATE
+typedef enum acamera_metadata_enum_acamera_lens_state {
+    /**
+     * <p>The lens parameters (ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
+     * ACAMERA_LENS_FILTER_DENSITY and ACAMERA_LENS_APERTURE) are not changing.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     * @see ACAMERA_LENS_FILTER_DENSITY
+     * @see ACAMERA_LENS_FOCAL_LENGTH
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     */
+    ACAMERA_LENS_STATE_STATIONARY                                    = 0,
+
+    /**
+     * <p>One or several of the lens parameters
+     * (ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
+     * ACAMERA_LENS_FILTER_DENSITY or ACAMERA_LENS_APERTURE) is
+     * currently changing.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     * @see ACAMERA_LENS_FILTER_DENSITY
+     * @see ACAMERA_LENS_FOCAL_LENGTH
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     */
+    ACAMERA_LENS_STATE_MOVING                                        = 1,
+
+} acamera_metadata_enum_android_lens_state_t;
+
+
+// ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
+typedef enum acamera_metadata_enum_acamera_lens_info_focus_distance_calibration {
+    /**
+     * <p>The lens focus distance is not accurate, and the units used for
+     * ACAMERA_LENS_FOCUS_DISTANCE do not correspond to any physical units.</p>
+     * <p>Setting the lens to the same focus distance on separate occasions may
+     * result in a different real focus distance, depending on factors such
+     * as the orientation of the device, the age of the focusing mechanism,
+     * and the device temperature. The focus distance value will still be
+     * in the range of <code>[0, ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE]</code>, where 0
+     * represents the farthest focus.</p>
+     *
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED        = 0,
+
+    /**
+     * <p>The lens focus distance is measured in diopters.</p>
+     * <p>However, setting the lens to the same focus distance
+     * on separate occasions may result in a different real
+     * focus distance, depending on factors such as the
+     * orientation of the device, the age of the focusing
+     * mechanism, and the device temperature.</p>
+     */
+    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_APPROXIMATE         = 1,
+
+    /**
+     * <p>The lens focus distance is measured in diopters, and
+     * is calibrated.</p>
+     * <p>The lens mechanism is calibrated so that setting the
+     * same focus distance is repeatable on multiple
+     * occasions with good accuracy, and the focus distance
+     * corresponds to the real physical distance to the plane
+     * of best focus.</p>
+     */
+    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED          = 2,
+
+} acamera_metadata_enum_android_lens_info_focus_distance_calibration_t;
+
+
+// ACAMERA_NOISE_REDUCTION_MODE
+typedef enum acamera_metadata_enum_acamera_noise_reduction_mode {
+    /**
+     * <p>No noise reduction is applied.</p>
+     */
+    ACAMERA_NOISE_REDUCTION_MODE_OFF                                 = 0,
+
+    /**
+     * <p>Noise reduction is applied without reducing frame rate relative to sensor
+     * output. It may be the same as OFF if noise reduction will reduce frame rate
+     * relative to sensor.</p>
+     */
+    ACAMERA_NOISE_REDUCTION_MODE_FAST                                = 1,
+
+    /**
+     * <p>High-quality noise reduction is applied, at the cost of possibly reduced frame
+     * rate relative to sensor output.</p>
+     */
+    ACAMERA_NOISE_REDUCTION_MODE_HIGH_QUALITY                        = 2,
+
+    /**
+     * <p>MINIMAL noise reduction is applied without reducing frame rate relative to
+     * sensor output. </p>
+     */
+    ACAMERA_NOISE_REDUCTION_MODE_MINIMAL                             = 3,
+
+    /**
+     * <p>Noise reduction is applied at different levels for different output streams,
+     * based on resolution. Streams at maximum recording resolution (see {@link
+     * ACameraDevice_createCaptureSession}) or below have noise
+     * reduction applied, while higher-resolution streams have MINIMAL (if supported) or no
+     * noise reduction applied (if MINIMAL is not supported.) The degree of noise reduction
+     * for low-resolution streams is tuned so that frame rate is not impacted, and the quality
+     * is equal to or better than FAST (since it is only applied to lower-resolution outputs,
+     * quality may improve from FAST).</p>
+     * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
+     * with YUV or PRIVATE reprocessing, where the application continuously captures
+     * high-resolution intermediate buffers into a circular buffer, from which a final image is
+     * produced via reprocessing when a user takes a picture.  For such a use case, the
+     * high-resolution buffers must not have noise reduction applied to maximize efficiency of
+     * preview and to avoid over-applying noise filtering when reprocessing, while
+     * low-resolution buffers (used for recording or preview, generally) need noise reduction
+     * applied for reasonable preview quality.</p>
+     * <p>This mode is guaranteed to be supported by devices that support either the
+     * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
+     * (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES lists either of those capabilities) and it will
+     * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG                    = 4,
+
+} acamera_metadata_enum_android_noise_reduction_mode_t;
+
+
+
+// ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+typedef enum acamera_metadata_enum_acamera_request_available_capabilities {
+    /**
+     * <p>The minimal set of capabilities that every camera
+     * device (regardless of ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL)
+     * supports.</p>
+     * <p>This capability is listed by all normal devices, and
+     * indicates that the camera device has a feature set
+     * that's comparable to the baseline requirements for the
+     * older android.hardware.Camera API.</p>
+     * <p>Devices with the DEPTH_OUTPUT capability might not list this
+     * capability, indicating that they support only depth measurement,
+     * not standard color output.</p>
+     *
+     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE       = 0,
+
+    /**
+     * <p>The camera device can be manually controlled (3A algorithms such
+     * as auto-exposure, and auto-focus can be bypassed).
+     * The camera device supports basic manual control of the sensor image
+     * acquisition related stages. This means the following controls are
+     * guaranteed to be supported:</p>
+     * <ul>
+     * <li>Manual frame duration control<ul>
+     * <li>ACAMERA_SENSOR_FRAME_DURATION</li>
+     * <li>ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION</li>
+     * </ul>
+     * </li>
+     * <li>Manual exposure control<ul>
+     * <li>ACAMERA_SENSOR_EXPOSURE_TIME</li>
+     * <li>ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE</li>
+     * </ul>
+     * </li>
+     * <li>Manual sensitivity control<ul>
+     * <li>ACAMERA_SENSOR_SENSITIVITY</li>
+     * <li>ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE</li>
+     * </ul>
+     * </li>
+     * <li>Manual lens control (if the lens is adjustable)<ul>
+     * <li>ACAMERA_LENS_*</li>
+     * </ul>
+     * </li>
+     * <li>Manual flash control (if a flash unit is present)<ul>
+     * <li>ACAMERA_FLASH_*</li>
+     * </ul>
+     * </li>
+     * <li>Manual black level locking<ul>
+     * <li>ACAMERA_BLACK_LEVEL_LOCK</li>
+     * </ul>
+     * </li>
+     * <li>Auto exposure lock<ul>
+     * <li>ACAMERA_CONTROL_AE_LOCK</li>
+     * </ul>
+     * </li>
+     * </ul>
+     * <p>If any of the above 3A algorithms are enabled, then the camera
+     * device will accurately report the values applied by 3A in the
+     * result.</p>
+     * <p>A given camera device may also support additional manual sensor controls,
+     * but this capability only covers the above list of controls.</p>
+     * <p>If this is supported, android.scaler.streamConfigurationMap will
+     * additionally return a min frame duration that is greater than
+     * zero for each supported size-format combination.</p>
+     *
+     * @see ACAMERA_BLACK_LEVEL_LOCK
+     * @see ACAMERA_CONTROL_AE_LOCK
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     * @see ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE
+     * @see ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION
+     * @see ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR             = 1,
+
+    /**
+     * <p>The camera device post-processing stages can be manually controlled.
+     * The camera device supports basic manual control of the image post-processing
+     * stages. This means the following controls are guaranteed to be supported:</p>
+     * <ul>
+     * <li>
+     * <p>Manual tonemap control</p>
+     * <ul>
+     * <li>android.tonemap.curve</li>
+     * <li>ACAMERA_TONEMAP_MODE</li>
+     * <li>ACAMERA_TONEMAP_MAX_CURVE_POINTS</li>
+     * <li>ACAMERA_TONEMAP_GAMMA</li>
+     * <li>ACAMERA_TONEMAP_PRESET_CURVE</li>
+     * </ul>
+     * </li>
+     * <li>
+     * <p>Manual white balance control</p>
+     * <ul>
+     * <li>ACAMERA_COLOR_CORRECTION_TRANSFORM</li>
+     * <li>ACAMERA_COLOR_CORRECTION_GAINS</li>
+     * </ul>
+     * </li>
+     * <li>Manual lens shading map control<ul>
+     * <li>ACAMERA_SHADING_MODE</li>
+     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE</li>
+     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP</li>
+     * <li>ACAMERA_LENS_INFO_SHADING_MAP_SIZE</li>
+     * </ul>
+     * </li>
+     * <li>Manual aberration correction control (if aberration correction is supported)<ul>
+     * <li>ACAMERA_COLOR_CORRECTION_ABERRATION_MODE</li>
+     * <li>ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES</li>
+     * </ul>
+     * </li>
+     * <li>Auto white balance lock<ul>
+     * <li>ACAMERA_CONTROL_AWB_LOCK</li>
+     * </ul>
+     * </li>
+     * </ul>
+     * <p>If auto white balance is enabled, then the camera device
+     * will accurately report the values applied by AWB in the result.</p>
+     * <p>A given camera device may also support additional post-processing
+     * controls, but this capability only covers the above list of controls.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+     * @see ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * @see ACAMERA_CONTROL_AWB_LOCK
+     * @see ACAMERA_LENS_INFO_SHADING_MAP_SIZE
+     * @see ACAMERA_SHADING_MODE
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+     * @see ACAMERA_TONEMAP_GAMMA
+     * @see ACAMERA_TONEMAP_MAX_CURVE_POINTS
+     * @see ACAMERA_TONEMAP_MODE
+     * @see ACAMERA_TONEMAP_PRESET_CURVE
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING    = 2,
+
+    /**
+     * <p>The camera device supports outputting RAW buffers and
+     * metadata for interpreting them.</p>
+     * <p>Devices supporting the RAW capability allow both for
+     * saving DNG files, and for direct application processing of
+     * raw sensor images.</p>
+     * <ul>
+     * <li>RAW_SENSOR is supported as an output format.</li>
+     * <li>The maximum available resolution for RAW_SENSOR streams
+     *   will match either the value in
+     *   ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE or
+     *   ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE.</li>
+     * <li>All DNG-related optional metadata entries are provided
+     *   by the camera device.</li>
+     * </ul>
+     *
+     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_RAW                       = 3,
+
+    /**
+     * <p>The camera device supports accurately reporting the sensor settings for many of
+     * the sensor controls while the built-in 3A algorithm is running.  This allows
+     * reporting of sensor settings even when these settings cannot be manually changed.</p>
+     * <p>The values reported for the following controls are guaranteed to be available
+     * in the CaptureResult, including when 3A is enabled:</p>
+     * <ul>
+     * <li>Exposure control<ul>
+     * <li>ACAMERA_SENSOR_EXPOSURE_TIME</li>
+     * </ul>
+     * </li>
+     * <li>Sensitivity control<ul>
+     * <li>ACAMERA_SENSOR_SENSITIVITY</li>
+     * </ul>
+     * </li>
+     * <li>Lens controls (if the lens is adjustable)<ul>
+     * <li>ACAMERA_LENS_FOCUS_DISTANCE</li>
+     * <li>ACAMERA_LENS_APERTURE</li>
+     * </ul>
+     * </li>
+     * </ul>
+     * <p>This capability is a subset of the MANUAL_SENSOR control capability, and will
+     * always be included if the MANUAL_SENSOR capability is available.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS      = 5,
+
+    /**
+     * <p>The camera device supports capturing high-resolution images at &gt;= 20 frames per
+     * second, in at least the uncompressed YUV format, when post-processing settings are set
+     * to FAST. Additionally, maximum-resolution images can be captured at &gt;= 10 frames
+     * per second.  Here, 'high resolution' means at least 8 megapixels, or the maximum
+     * resolution of the device, whichever is smaller.</p>
+     * <p>More specifically, this means that at least one output {@link
+     * AIMAGE_FORMAT_YUV_420_888} size listed in
+     * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS} is larger or equal to the
+     * 'high resolution' defined above, and can be captured at at least 20 fps.
+     * For the largest {@link AIMAGE_FORMAT_YUV_420_888} size listed in
+     * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}, camera device can capture this
+     * size for at least 10 frames per second.
+     * Also the ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES entry lists at least one FPS range
+     * where the minimum FPS is &gt;= 1 / minimumFrameDuration for the largest YUV_420_888 size.</p>
+     * <p>If the device supports the {@link AIMAGE_FORMAT_RAW10}, {@link
+     * AIMAGE_FORMAT_RAW12}, then those can also be captured at the same rate
+     * as the maximum-size YUV_420_888 resolution is.</p>
+     * <p>In addition, the ACAMERA_SYNC_MAX_LATENCY field is guaranted to have a value between 0
+     * and 4, inclusive. ACAMERA_CONTROL_AE_LOCK_AVAILABLE and ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
+     * are also guaranteed to be <code>true</code> so burst capture with these two locks ON yields
+     * consistent image output.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES
+     * @see ACAMERA_CONTROL_AE_LOCK_AVAILABLE
+     * @see ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
+     * @see ACAMERA_SYNC_MAX_LATENCY
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE             = 6,
+
+    /**
+     * <p>The camera device can produce depth measurements from its field of view.</p>
+     * <p>This capability requires the camera device to support the following:</p>
+     * <ul>
+     * <li>{@link AIMAGE_FORMAT_DEPTH16} is supported as an output format.</li>
+     * <li>{@link AIMAGE_FORMAT_DEPTH_POINT_CLOUD} is optionally supported as an
+     *   output format.</li>
+     * <li>This camera device, and all camera devices with the same ACAMERA_LENS_FACING,
+     *   will list the following calibration entries in {@link ACameraMetadata} from both
+     *   {@link ACameraManager_getCameraCharacteristics} and
+     *   {@link ACameraCaptureSession_captureCallback_result}:<ul>
+     * <li>ACAMERA_LENS_POSE_TRANSLATION</li>
+     * <li>ACAMERA_LENS_POSE_ROTATION</li>
+     * <li>ACAMERA_LENS_INTRINSIC_CALIBRATION</li>
+     * <li>ACAMERA_LENS_RADIAL_DISTORTION</li>
+     * </ul>
+     * </li>
+     * <li>The ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE entry is listed by this device.</li>
+     * <li>A LIMITED camera with only the DEPTH_OUTPUT capability does not have to support
+     *   normal YUV_420_888, JPEG, and PRIV-format outputs. It only has to support the DEPTH16
+     *   format.</li>
+     * </ul>
+     * <p>Generally, depth output operates at a slower frame rate than standard color capture,
+     * so the DEPTH16 and DEPTH_POINT_CLOUD formats will commonly have a stall duration that
+     * should be accounted for (see
+     * {@link ACAMERA_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS}).
+     * On a device that supports both depth and color-based output, to enable smooth preview,
+     * using a repeating burst is recommended, where a depth-output target is only included
+     * once every N frames, where N is the ratio between preview output rate and depth output
+     * rate, including depth stall time.</p>
+     *
+     * @see ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE
+     * @see ACAMERA_LENS_FACING
+     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
+     * @see ACAMERA_LENS_POSE_ROTATION
+     * @see ACAMERA_LENS_POSE_TRANSLATION
+     * @see ACAMERA_LENS_RADIAL_DISTORTION
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT              = 8,
+
+} acamera_metadata_enum_android_request_available_capabilities_t;
+
+
+// ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
+typedef enum acamera_metadata_enum_acamera_scaler_available_stream_configurations {
+    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT            = 0,
+
+    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_INPUT             = 1,
+
+} acamera_metadata_enum_android_scaler_available_stream_configurations_t;
+
+// ACAMERA_SCALER_CROPPING_TYPE
+typedef enum acamera_metadata_enum_acamera_scaler_cropping_type {
+    /**
+     * <p>The camera device only supports centered crop regions.</p>
+     */
+    ACAMERA_SCALER_CROPPING_TYPE_CENTER_ONLY                         = 0,
+
+    /**
+     * <p>The camera device supports arbitrarily chosen crop regions.</p>
+     */
+    ACAMERA_SCALER_CROPPING_TYPE_FREEFORM                            = 1,
+
+} acamera_metadata_enum_android_scaler_cropping_type_t;
+
+
+// ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+typedef enum acamera_metadata_enum_acamera_sensor_reference_illuminant1 {
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT                    = 1,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FLUORESCENT                 = 2,
+
+    /**
+     * <p>Incandescent light</p>
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_TUNGSTEN                    = 3,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FLASH                       = 4,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FINE_WEATHER                = 9,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_CLOUDY_WEATHER              = 10,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_SHADE                       = 11,
+
+    /**
+     * <p>D 5700 - 7100K</p>
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT_FLUORESCENT        = 12,
+
+    /**
+     * <p>N 4600 - 5400K</p>
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAY_WHITE_FLUORESCENT       = 13,
+
+    /**
+     * <p>W 3900 - 4500K</p>
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_COOL_WHITE_FLUORESCENT      = 14,
+
+    /**
+     * <p>WW 3200 - 3700K</p>
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_WHITE_FLUORESCENT           = 15,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_A                  = 17,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_B                  = 18,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_C                  = 19,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D55                         = 20,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D65                         = 21,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D75                         = 22,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D50                         = 23,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_ISO_STUDIO_TUNGSTEN         = 24,
+
+} acamera_metadata_enum_android_sensor_reference_illuminant1_t;
+
+// ACAMERA_SENSOR_TEST_PATTERN_MODE
+typedef enum acamera_metadata_enum_acamera_sensor_test_pattern_mode {
+    /**
+     * <p>No test pattern mode is used, and the camera
+     * device returns captures from the image sensor.</p>
+     * <p>This is the default if the key is not set.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_OFF                             = 0,
+
+    /**
+     * <p>Each pixel in <code>[R, G_even, G_odd, B]</code> is replaced by its
+     * respective color channel provided in
+     * ACAMERA_SENSOR_TEST_PATTERN_DATA.</p>
+     * <p>For example:</p>
+     * <pre><code>android.testPatternData = [0, 0xFFFFFFFF, 0xFFFFFFFF, 0]
+     * </code></pre>
+     * <p>All green pixels are 100% green. All red/blue pixels are black.</p>
+     * <pre><code>android.testPatternData = [0xFFFFFFFF, 0, 0xFFFFFFFF, 0]
+     * </code></pre>
+     * <p>All red pixels are 100% red. Only the odd green pixels
+     * are 100% green. All blue pixels are 100% black.</p>
+     *
+     * @see ACAMERA_SENSOR_TEST_PATTERN_DATA
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_SOLID_COLOR                     = 1,
+
+    /**
+     * <p>All pixel data is replaced with an 8-bar color pattern.</p>
+     * <p>The vertical bars (left-to-right) are as follows:</p>
+     * <ul>
+     * <li>100% white</li>
+     * <li>yellow</li>
+     * <li>cyan</li>
+     * <li>green</li>
+     * <li>magenta</li>
+     * <li>red</li>
+     * <li>blue</li>
+     * <li>black</li>
+     * </ul>
+     * <p>In general the image would look like the following:</p>
+     * <pre><code>W Y C G M R B K
+     * W Y C G M R B K
+     * W Y C G M R B K
+     * W Y C G M R B K
+     * W Y C G M R B K
+     * . . . . . . . .
+     * . . . . . . . .
+     * . . . . . . . .
+     *
+     * (B = Blue, K = Black)
+     * </code></pre>
+     * <p>Each bar should take up 1/8 of the sensor pixel array width.
+     * When this is not possible, the bar size should be rounded
+     * down to the nearest integer and the pattern can repeat
+     * on the right side.</p>
+     * <p>Each bar's height must always take up the full sensor
+     * pixel array height.</p>
+     * <p>Each pixel in this test pattern must be set to either
+     * 0% intensity or 100% intensity.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_COLOR_BARS                      = 2,
+
+    /**
+     * <p>The test pattern is similar to COLOR_BARS, except that
+     * each bar should start at its specified color at the top,
+     * and fade to gray at the bottom.</p>
+     * <p>Furthermore each bar is further subdivided into a left and
+     * right half. The left half should have a smooth gradient,
+     * and the right half should have a quantized gradient.</p>
+     * <p>In particular, the right half's should consist of blocks of the
+     * same color for 1/16th active sensor pixel array width.</p>
+     * <p>The least significant bits in the quantized gradient should
+     * be copied from the most significant bits of the smooth gradient.</p>
+     * <p>The height of each bar should always be a multiple of 128.
+     * When this is not the case, the pattern should repeat at the bottom
+     * of the image.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY         = 3,
+
+    /**
+     * <p>All pixel data is replaced by a pseudo-random sequence
+     * generated from a PN9 512-bit sequence (typically implemented
+     * in hardware with a linear feedback shift register).</p>
+     * <p>The generator should be reset at the beginning of each frame,
+     * and thus each subsequent raw frame with this test pattern should
+     * be exactly the same as the last.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_PN9                             = 4,
+
+    /**
+     * <p>The first custom test pattern. All custom patterns that are
+     * available only on this camera device are at least this numeric
+     * value.</p>
+     * <p>All of the custom test patterns will be static
+     * (that is the raw image must not vary from frame to frame).</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_CUSTOM1                         = 256,
+
+} acamera_metadata_enum_android_sensor_test_pattern_mode_t;
+
+
+// ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+typedef enum acamera_metadata_enum_acamera_sensor_info_color_filter_arrangement {
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB                = 0,
+
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG                = 1,
+
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG                = 2,
+
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR                = 3,
+
+    /**
+     * <p>Sensor is not Bayer; output has 3 16-bit
+     * values for each pixel, instead of just 1 16-bit value
+     * per pixel.</p>
+     */
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGB                 = 4,
+
+} acamera_metadata_enum_android_sensor_info_color_filter_arrangement_t;
+
+// ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
+typedef enum acamera_metadata_enum_acamera_sensor_info_timestamp_source {
+    /**
+     * <p>Timestamps from ACAMERA_SENSOR_TIMESTAMP are in nanoseconds and monotonic,
+     * but can not be compared to timestamps from other subsystems
+     * (e.g. accelerometer, gyro etc.), or other instances of the same or different
+     * camera devices in the same system. Timestamps between streams and results for
+     * a single camera instance are comparable, and the timestamps for all buffers
+     * and the result metadata generated by a single capture are identical.</p>
+     *
+     * @see ACAMERA_SENSOR_TIMESTAMP
+     */
+    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN                     = 0,
+
+    /**
+     * <p>Timestamps from ACAMERA_SENSOR_TIMESTAMP are in the same timebase as
+     * <a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtimeNanos">elapsedRealtimeNanos</a>
+     * (or CLOCK_BOOTTIME), and they can be compared to other timestamps using that base.</p>
+     *
+     * @see ACAMERA_SENSOR_TIMESTAMP
+     */
+    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE_REALTIME                    = 1,
+
+} acamera_metadata_enum_android_sensor_info_timestamp_source_t;
+
+// ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
+typedef enum acamera_metadata_enum_acamera_sensor_info_lens_shading_applied {
+    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED_FALSE                   = 0,
+
+    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED_TRUE                    = 1,
+
+} acamera_metadata_enum_android_sensor_info_lens_shading_applied_t;
+
+
+// ACAMERA_SHADING_MODE
+typedef enum acamera_metadata_enum_acamera_shading_mode {
+    /**
+     * <p>No lens shading correction is applied.</p>
+     */
+    ACAMERA_SHADING_MODE_OFF                                         = 0,
+
+    /**
+     * <p>Apply lens shading corrections, without slowing
+     * frame rate relative to sensor raw output</p>
+     */
+    ACAMERA_SHADING_MODE_FAST                                        = 1,
+
+    /**
+     * <p>Apply high-quality lens shading correction, at the
+     * cost of possibly reduced frame rate.</p>
+     */
+    ACAMERA_SHADING_MODE_HIGH_QUALITY                                = 2,
+
+} acamera_metadata_enum_android_shading_mode_t;
+
+
+// ACAMERA_STATISTICS_FACE_DETECT_MODE
+typedef enum acamera_metadata_enum_acamera_statistics_face_detect_mode {
+    /**
+     * <p>Do not include face detection statistics in capture
+     * results.</p>
+     */
+    ACAMERA_STATISTICS_FACE_DETECT_MODE_OFF                          = 0,
+
+    /**
+     * <p>Return face rectangle and confidence values only.</p>
+     */
+    ACAMERA_STATISTICS_FACE_DETECT_MODE_SIMPLE                       = 1,
+
+    /**
+     * <p>Return all face
+     * metadata.</p>
+     * <p>In this mode, face rectangles, scores, landmarks, and face IDs are all valid.</p>
+     */
+    ACAMERA_STATISTICS_FACE_DETECT_MODE_FULL                         = 2,
+
+} acamera_metadata_enum_android_statistics_face_detect_mode_t;
+
+// ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE
+typedef enum acamera_metadata_enum_acamera_statistics_hot_pixel_map_mode {
+    /**
+     * <p>Hot pixel map production is disabled.</p>
+     */
+    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE_OFF                        = 0,
+
+    /**
+     * <p>Hot pixel map production is enabled.</p>
+     */
+    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE_ON                         = 1,
+
+} acamera_metadata_enum_android_statistics_hot_pixel_map_mode_t;
+
+// ACAMERA_STATISTICS_SCENE_FLICKER
+typedef enum acamera_metadata_enum_acamera_statistics_scene_flicker {
+    /**
+     * <p>The camera device does not detect any flickering illumination
+     * in the current scene.</p>
+     */
+    ACAMERA_STATISTICS_SCENE_FLICKER_NONE                            = 0,
+
+    /**
+     * <p>The camera device detects illumination flickering at 50Hz
+     * in the current scene.</p>
+     */
+    ACAMERA_STATISTICS_SCENE_FLICKER_50HZ                            = 1,
+
+    /**
+     * <p>The camera device detects illumination flickering at 60Hz
+     * in the current scene.</p>
+     */
+    ACAMERA_STATISTICS_SCENE_FLICKER_60HZ                            = 2,
+
+} acamera_metadata_enum_android_statistics_scene_flicker_t;
+
+// ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+typedef enum acamera_metadata_enum_acamera_statistics_lens_shading_map_mode {
+    /**
+     * <p>Do not include a lens shading map in the capture result.</p>
+     */
+    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE_OFF                     = 0,
+
+    /**
+     * <p>Include a lens shading map in the capture result.</p>
+     */
+    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE_ON                      = 1,
+
+} acamera_metadata_enum_android_statistics_lens_shading_map_mode_t;
+
+
+
+// ACAMERA_TONEMAP_MODE
+typedef enum acamera_metadata_enum_acamera_tonemap_mode {
+    /**
+     * <p>Use the tone mapping curve specified in
+     * the ACAMERA_TONEMAPCURVE_* entries.</p>
+     * <p>All color enhancement and tonemapping must be disabled, except
+     * for applying the tonemapping curve specified by
+     * android.tonemap.curve.</p>
+     * <p>Must not slow down frame rate relative to raw
+     * sensor output.</p>
+     */
+    ACAMERA_TONEMAP_MODE_CONTRAST_CURVE                              = 0,
+
+    /**
+     * <p>Advanced gamma mapping and color enhancement may be applied, without
+     * reducing frame rate compared to raw sensor output.</p>
+     */
+    ACAMERA_TONEMAP_MODE_FAST                                        = 1,
+
+    /**
+     * <p>High-quality gamma mapping and color enhancement will be applied, at
+     * the cost of possibly reduced frame rate compared to raw sensor output.</p>
+     */
+    ACAMERA_TONEMAP_MODE_HIGH_QUALITY                                = 2,
+
+    /**
+     * <p>Use the gamma value specified in ACAMERA_TONEMAP_GAMMA to peform
+     * tonemapping.</p>
+     * <p>All color enhancement and tonemapping must be disabled, except
+     * for applying the tonemapping curve specified by ACAMERA_TONEMAP_GAMMA.</p>
+     * <p>Must not slow down frame rate relative to raw sensor output.</p>
+     *
+     * @see ACAMERA_TONEMAP_GAMMA
+     */
+    ACAMERA_TONEMAP_MODE_GAMMA_VALUE                                 = 3,
+
+    /**
+     * <p>Use the preset tonemapping curve specified in
+     * ACAMERA_TONEMAP_PRESET_CURVE to peform tonemapping.</p>
+     * <p>All color enhancement and tonemapping must be disabled, except
+     * for applying the tonemapping curve specified by
+     * ACAMERA_TONEMAP_PRESET_CURVE.</p>
+     * <p>Must not slow down frame rate relative to raw sensor output.</p>
+     *
+     * @see ACAMERA_TONEMAP_PRESET_CURVE
+     */
+    ACAMERA_TONEMAP_MODE_PRESET_CURVE                                = 4,
+
+} acamera_metadata_enum_android_tonemap_mode_t;
+
+// ACAMERA_TONEMAP_PRESET_CURVE
+typedef enum acamera_metadata_enum_acamera_tonemap_preset_curve {
+    /**
+     * <p>Tonemapping curve is defined by sRGB</p>
+     */
+    ACAMERA_TONEMAP_PRESET_CURVE_SRGB                                = 0,
+
+    /**
+     * <p>Tonemapping curve is defined by ITU-R BT.709</p>
+     */
+    ACAMERA_TONEMAP_PRESET_CURVE_REC709                              = 1,
+
+} acamera_metadata_enum_android_tonemap_preset_curve_t;
+
+
+
+// ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+typedef enum acamera_metadata_enum_acamera_info_supported_hardware_level {
+    /**
+     * <p>This camera device does not have enough capabilities to qualify as a <code>FULL</code> device or
+     * better.</p>
+     * <p>Only the stream configurations listed in the <code>LEGACY</code> and <code>LIMITED</code> tables in the
+     * {@link ACameraDevice_createCaptureSession} documentation are guaranteed to be supported.</p>
+     * <p>All <code>LIMITED</code> devices support the <code>BACKWARDS_COMPATIBLE</code> capability, indicating basic
+     * support for color image capture. The only exception is that the device may
+     * alternatively support only the <code>DEPTH_OUTPUT</code> capability, if it can only output depth
+     * measurements and not color images.</p>
+     * <p><code>LIMITED</code> devices and above require the use of ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * to lock exposure metering (and calculate flash power, for cameras with flash) before
+     * capturing a high-quality still image.</p>
+     * <p>A <code>LIMITED</code> device that only lists the <code>BACKWARDS_COMPATIBLE</code> capability is only
+     * required to support full-automatic operation and post-processing (<code>OFF</code> is not
+     * supported for ACAMERA_CONTROL_AE_MODE, ACAMERA_CONTROL_AF_MODE, or
+     * ACAMERA_CONTROL_AWB_MODE)</p>
+     * <p>Additional capabilities may optionally be supported by a <code>LIMITED</code>-level device, and
+     * can be checked for in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED                    = 0,
+
+    /**
+     * <p>This camera device is capable of supporting advanced imaging applications.</p>
+     * <p>The stream configurations listed in the <code>FULL</code>, <code>LEGACY</code> and <code>LIMITED</code> tables in the
+     * {@link ACameraDevice_createCaptureSession} documentation are guaranteed to be supported.</p>
+     * <p>A <code>FULL</code> device will support below capabilities:</p>
+     * <ul>
+     * <li><code>BURST_CAPTURE</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+     *   <code>BURST_CAPTURE</code>)</li>
+     * <li>Per frame control (ACAMERA_SYNC_MAX_LATENCY <code>==</code> PER_FRAME_CONTROL)</li>
+     * <li>Manual sensor control (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains <code>MANUAL_SENSOR</code>)</li>
+     * <li>Manual post-processing control (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+     *   <code>MANUAL_POST_PROCESSING</code>)</li>
+     * <li>The required exposure time range defined in ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE</li>
+     * <li>The required maxFrameDuration defined in ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION</li>
+     * </ul>
+     * <p>Note:
+     * Pre-API level 23, FULL devices also supported arbitrary cropping region
+     * (ACAMERA_SCALER_CROPPING_TYPE <code>== FREEFORM</code>); this requirement was relaxed in API level
+     * 23, and <code>FULL</code> devices may only support <code>CENTERED</code> cropping.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * @see ACAMERA_SCALER_CROPPING_TYPE
+     * @see ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE
+     * @see ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION
+     * @see ACAMERA_SYNC_MAX_LATENCY
+     */
+    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL                       = 1,
+
+    /**
+     * <p>This camera device is running in backward compatibility mode.</p>
+     * <p>Only the stream configurations listed in the <code>LEGACY</code> table in the {@link
+     * ACameraDevice_createCaptureSession} documentation are supported.</p>
+     * <p>A <code>LEGACY</code> device does not support per-frame control, manual sensor control, manual
+     * post-processing, arbitrary cropping regions, and has relaxed performance constraints.
+     * No additional capabilities beyond <code>BACKWARD_COMPATIBLE</code> will ever be listed by a
+     * <code>LEGACY</code> device in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+     * <p>In addition, the ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is not functional on <code>LEGACY</code>
+     * devices. Instead, every request that includes a JPEG-format output target is treated
+     * as triggering a still capture, internally executing a precapture trigger.  This may
+     * fire the flash for flash power metering during precapture, and then fire the flash
+     * for the final capture, if a flash is available on the device and the AE mode is set to
+     * enable the flash.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY                     = 2,
+
+    /**
+     * <p>This camera device is capable of YUV reprocessing and RAW data capture, in addition to
+     * FULL-level capabilities.</p>
+     * <p>The stream configurations listed in the <code>LEVEL_3</code>, <code>RAW</code>, <code>FULL</code>, <code>LEGACY</code> and
+     * <code>LIMITED</code> tables in the {@link
+     * ACameraDevice_createCaptureSession}
+     * documentation are guaranteed to be supported.</p>
+     * <p>The following additional capabilities are guaranteed to be supported:</p>
+     * <ul>
+     * <li><code>YUV_REPROCESSING</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+     *   <code>YUV_REPROCESSING</code>)</li>
+     * <li><code>RAW</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+     *   <code>RAW</code>)</li>
+     * </ul>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_3                          = 3,
+
+} acamera_metadata_enum_android_info_supported_hardware_level_t;
+
+
+// ACAMERA_BLACK_LEVEL_LOCK
+typedef enum acamera_metadata_enum_acamera_black_level_lock {
+    ACAMERA_BLACK_LEVEL_LOCK_OFF                                     = 0,
+
+    ACAMERA_BLACK_LEVEL_LOCK_ON                                      = 1,
+
+} acamera_metadata_enum_android_black_level_lock_t;
+
+
+// ACAMERA_SYNC_FRAME_NUMBER
+typedef enum acamera_metadata_enum_acamera_sync_frame_number {
+    /**
+     * <p>The current result is not yet fully synchronized to any request.</p>
+     * <p>Synchronization is in progress, and reading metadata from this
+     * result may include a mix of data that have taken effect since the
+     * last synchronization time.</p>
+     * <p>In some future result, within ACAMERA_SYNC_MAX_LATENCY frames,
+     * this value will update to the actual frame number frame number
+     * the result is guaranteed to be synchronized to (as long as the
+     * request settings remain constant).</p>
+     *
+     * @see ACAMERA_SYNC_MAX_LATENCY
+     */
+    ACAMERA_SYNC_FRAME_NUMBER_CONVERGING                             = -1,
+
+    /**
+     * <p>The current result's synchronization status is unknown.</p>
+     * <p>The result may have already converged, or it may be in
+     * progress.  Reading from this result may include some mix
+     * of settings from past requests.</p>
+     * <p>After a settings change, the new settings will eventually all
+     * take effect for the output buffers and results. However, this
+     * value will not change when that happens. Altering settings
+     * rapidly may provide outcomes using mixes of settings from recent
+     * requests.</p>
+     * <p>This value is intended primarily for backwards compatibility with
+     * the older camera implementations (for android.hardware.Camera).</p>
+     */
+    ACAMERA_SYNC_FRAME_NUMBER_UNKNOWN                                = -2,
+
+} acamera_metadata_enum_android_sync_frame_number_t;
+
+// ACAMERA_SYNC_MAX_LATENCY
+typedef enum acamera_metadata_enum_acamera_sync_max_latency {
+    /**
+     * <p>Every frame has the requests immediately applied.</p>
+     * <p>Changing controls over multiple requests one after another will
+     * produce results that have those controls applied atomically
+     * each frame.</p>
+     * <p>All FULL capability devices will have this as their maxLatency.</p>
+     */
+    ACAMERA_SYNC_MAX_LATENCY_PER_FRAME_CONTROL                       = 0,
+
+    /**
+     * <p>Each new frame has some subset (potentially the entire set)
+     * of the past requests applied to the camera settings.</p>
+     * <p>By submitting a series of identical requests, the camera device
+     * will eventually have the camera settings applied, but it is
+     * unknown when that exact point will be.</p>
+     * <p>All LEGACY capability devices will have this as their maxLatency.</p>
+     */
+    ACAMERA_SYNC_MAX_LATENCY_UNKNOWN                                 = -1,
+
+} acamera_metadata_enum_android_sync_max_latency_t;
+
+
+
+// ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS
+typedef enum acamera_metadata_enum_acamera_depth_available_depth_stream_configurations {
+    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_OUTPUT       = 0,
+
+    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_INPUT        = 1,
+
+} acamera_metadata_enum_android_depth_available_depth_stream_configurations_t;
+
+// ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE
+typedef enum acamera_metadata_enum_acamera_depth_depth_is_exclusive {
+    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE_FALSE                           = 0,
+
+    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE_TRUE                            = 1,
+
+} acamera_metadata_enum_android_depth_depth_is_exclusive_t;
+
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_METADATA_TAGS_H */
+
+/** @} */
diff --git a/camera/include/camera/ndk/NdkCaptureRequest.h b/camera/include/camera/ndk/NdkCaptureRequest.h
new file mode 100644
index 0000000..c62ba2c
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCaptureRequest.h
@@ -0,0 +1,312 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCaptureRequest.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#include <sys/cdefs.h>
+
+#include <android/native_window.h>
+#include "NdkCameraError.h"
+#include "NdkCameraMetadata.h"
+
+#ifndef _NDK_CAPTURE_REQUEST_H
+#define _NDK_CAPTURE_REQUEST_H
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+// Container for output targets
+typedef struct ACameraOutputTargets ACameraOutputTargets;
+
+// Container for a single output target
+typedef struct ACameraOutputTarget ACameraOutputTarget;
+
+/**
+ * ACaptureRequest is an opaque type that contains settings and output targets needed to capture
+ * a single image from camera device.
+ *
+ * <p>ACaptureRequest contains the configuration for the capture hardware (sensor, lens, flash),
+ * the processing pipeline, the control algorithms, and the output buffers. Also
+ * contains the list of target {@link ANativeWindow}s to send image data to for this
+ * capture.</p>
+ *
+ * <p>ACaptureRequest is created by {@link ACameraDevice_createCaptureRequest}.
+ *
+ * <p>ACaptureRequest is given to {@link ACameraCaptureSession_capture} or
+ * {@link ACameraCaptureSession_setRepeatingRequest} to capture images from a camera.</p>
+ *
+ * <p>Each request can specify a different subset of target {@link ANativeWindow}s for the
+ * camera to send the captured data to. All the {@link ANativeWindow}s used in a request must
+ * be part of the {@link ANativeWindow} list given to the last call to
+ * {@link ACameraDevice_createCaptureSession}, when the request is submitted to the
+ * session.</p>
+ *
+ * <p>For example, a request meant for repeating preview might only include the
+ * {@link ANativeWindow} for the preview SurfaceView or SurfaceTexture, while a
+ * high-resolution still capture would also include a {@link ANativeWindow} from a
+ * {@link AImageReader} configured for high-resolution JPEG images.</p>
+ *
+ * @see ACameraDevice_createCaptureRequest
+ * @see ACameraCaptureSession_capture
+ * @see ACameraCaptureSession_setRepeatingRequest
+ */
+typedef struct ACaptureRequest ACaptureRequest;
+
+/**
+ * Create a ACameraOutputTarget object.
+ *
+ * <p>The ACameraOutputTarget is used in {@link ACaptureRequest_addTarget} method to add an output
+ * {@link ANativeWindow} to ACaptureRequest. Use {@link ACameraOutputTarget_free} to free the object
+ * and its memory after application no longer needs the {@link ACameraOutputTarget}.</p>
+ *
+ * @param window the {@link ANativeWindow} to be associated with the {@link ACameraOutputTarget}
+ * @param output the output {@link ACameraOutputTarget} will be stored here if the
+ *                  method call succeeds.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds. The created ACameraOutputTarget will
+ *                                be filled in the output argument.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if window or output is NULL.</li></ul>
+ *
+ * @see ACaptureRequest_addTarget
+ */
+camera_status_t ACameraOutputTarget_create(ANativeWindow* window, ACameraOutputTarget** output);
+
+/**
+ * Free a ACameraOutputTarget object.
+ *
+ * @param output the {@link ACameraOutputTarget} to be freed.
+ *
+ * @see ACameraOutputTarget_create
+ */
+void ACameraOutputTarget_free(ACameraOutputTarget* output);
+
+/**
+ * Add an {@link ACameraOutputTarget} object to {@link ACaptureRequest}.
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param output the output {@link ACameraOutputTarget} to be added to capture request.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request or output is NULL.</li></ul>
+ */
+camera_status_t ACaptureRequest_addTarget(ACaptureRequest* request,
+        const ACameraOutputTarget* output);
+
+/**
+ * Remove an {@link ACameraOutputTarget} object from {@link ACaptureRequest}.
+ *
+ * <p>This method has no effect if the ACameraOutputTarget does not exist in ACaptureRequest.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param output the output {@link ACameraOutputTarget} to be removed from capture request.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request or output is NULL.</li></ul>
+ */
+camera_status_t ACaptureRequest_removeTarget(ACaptureRequest* request,
+        const ACameraOutputTarget* output);
+
+/**
+ * Get a metadata entry from input {@link ACaptureRequest}.
+ *
+ * <p>The memory of the data field in returned entry is managed by camera framework. Do not
+ * attempt to free it.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be get.
+ * @param entry the output {@link ACameraMetadata_const_entry} will be filled here if the method
+ *        call succeeeds.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if metadata or entry is NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_METADATA_NOT_FOUND} if the capture request does not contain an
+ *             entry of input tag value.</li></ul>
+ */
+camera_status_t ACaptureRequest_getConstEntry(
+        const ACaptureRequest* request, uint32_t tag, ACameraMetadata_const_entry* entry);
+
+/*
+ * List all the entry tags in input {@link ACaptureRequest}.
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param numEntries number of metadata entries in input {@link ACaptureRequest}
+ * @param tags the tag values of the metadata entries. Length of tags is returned in numEntries
+ *             argument. The memory is managed by ACaptureRequest itself and must NOT be free/delete
+ *             by application. Calling ACaptureRequest_setEntry_* methods will invalidate previous
+ *             output of ACaptureRequest_getAllTags. Do not access tags after calling
+ *             ACaptureRequest_setEntry_*. To get new list of tags after updating capture request,
+ *             application must call ACaptureRequest_getAllTags again. Do NOT access tags after
+ *             calling ACaptureRequest_free.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request, numEntries or tags is NULL.</li>
+ *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ */
+camera_status_t ACaptureRequest_getAllTags(
+        const ACaptureRequest* request, /*out*/int32_t* numTags, /*out*/const uint32_t** tags);
+
+/**
+ * Set/change a camera capture control entry with unsigned 8 bits data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ *             zero while data is NULL, the data type of the tag is not unsigned 8 bits, or
+ *             the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_u8(
+        ACaptureRequest* request, uint32_t tag, uint32_t count, const uint8_t* data);
+
+/**
+ * Set/change a camera capture control entry with signed 32 bits data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ *             zero while data is NULL, the data type of the tag is not signed 32 bits, or
+ *             the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_i32(
+        ACaptureRequest* request, uint32_t tag, uint32_t count, const int32_t* data);
+
+/**
+ * Set/change a camera capture control entry with float data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ *             zero while data is NULL, the data type of the tag is not float, or
+ *             the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_float(
+        ACaptureRequest* request, uint32_t tag, uint32_t count, const float* data);
+
+/**
+ * Set/change a camera capture control entry with signed 64 bits data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ *             zero while data is NULL, the data type of the tag is not signed 64 bits, or
+ *             the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_i64(
+        ACaptureRequest* request, uint32_t tag, uint32_t count, const int64_t* data);
+
+/**
+ * Set/change a camera capture control entry with double data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ *             zero while data is NULL, the data type of the tag is not double, or
+ *             the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_double(
+        ACaptureRequest* request, uint32_t tag, uint32_t count, const double* data);
+
+/**
+ * Set/change a camera capture control entry with rational data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ *             zero while data is NULL, the data type of the tag is not rational, or
+ *             the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_rational(
+        ACaptureRequest* request, uint32_t tag, uint32_t count,
+        const ACameraMetadata_rational* data);
+
+/**
+ * Free a {@link ACaptureRequest} structure.
+ *
+ * @param request the {@link ACaptureRequest} to be freed.
+ */
+void ACaptureRequest_free(ACaptureRequest* request);
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAPTURE_REQUEST_H */
+
+/** @} */
diff --git a/camera/ndk/Android.bp b/camera/ndk/Android.bp
new file mode 100644
index 0000000..ade0d72
--- /dev/null
+++ b/camera/ndk/Android.bp
@@ -0,0 +1,24 @@
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Headers module is in frameworks/av/Android.bp because modules are not allowed
+// to refer to headers in parent directories and the headers live in
+// frameworks/av/include.
+
+ndk_library {
+    name: "libcamera2ndk",
+    symbol_file: "libcamera2ndk.map.txt",
+    first_version: "24",
+    unversioned_until: "current",
+}
diff --git a/camera/ndk/Android.mk b/camera/ndk/Android.mk
index 40dbeef..591dfc2 100644
--- a/camera/ndk/Android.mk
+++ b/camera/ndk/Android.mk
@@ -51,8 +51,6 @@
     libcutils \
     libcamera_metadata
 
-LOCAL_CLANG := true
-
 include $(BUILD_SHARED_LIBRARY)
 
 endif
diff --git a/camera/ndk/NdkCaptureRequest.cpp b/camera/ndk/NdkCaptureRequest.cpp
index 77b9a33..7c37955 100644
--- a/camera/ndk/NdkCaptureRequest.cpp
+++ b/camera/ndk/NdkCaptureRequest.cpp
@@ -51,8 +51,13 @@
         ACaptureRequest* req, const ACameraOutputTarget* target) {
     ATRACE_CALL();
     if (req == nullptr || req->targets == nullptr || target == nullptr) {
+        void* req_targets;
+        if (req != nullptr)
+            req_targets = req->targets;
+        else
+            req_targets = nullptr;
         ALOGE("%s: Error: invalid input: req %p, req-targets %p, target %p",
-                __FUNCTION__, req, req->targets, target);
+                __FUNCTION__, req, req_targets, target);
         return ACAMERA_ERROR_INVALID_PARAMETER;
     }
     auto pair = req->targets->mOutputs.insert(*target);
@@ -67,8 +72,13 @@
         ACaptureRequest* req, const ACameraOutputTarget* target) {
     ATRACE_CALL();
     if (req == nullptr || req->targets == nullptr || target == nullptr) {
+        void* req_targets;
+        if (req != nullptr)
+            req_targets = req->targets;
+        else
+            req_targets = nullptr;
         ALOGE("%s: Error: invalid input: req %p, req-targets %p, target %p",
-                __FUNCTION__, req, req->targets, target);
+                __FUNCTION__, req, req_targets, target);
         return ACAMERA_ERROR_INVALID_PARAMETER;
     }
     req->targets->mOutputs.erase(*target);
diff --git a/camera/ndk/impl/ACameraCaptureSession.h b/camera/ndk/impl/ACameraCaptureSession.h
index 58428e6..f56219c 100644
--- a/camera/ndk/impl/ACameraCaptureSession.h
+++ b/camera/ndk/impl/ACameraCaptureSession.h
@@ -24,7 +24,7 @@
 using namespace android;
 
 struct ACaptureSessionOutput {
-    ACaptureSessionOutput(ANativeWindow* window) : mWindow(window) {};
+    explicit ACaptureSessionOutput(ANativeWindow* window) : mWindow(window) {};
 
     bool operator == (const ACaptureSessionOutput& other) const {
         return mWindow == other.mWindow;
diff --git a/camera/ndk/impl/ACameraDevice.cpp b/camera/ndk/impl/ACameraDevice.cpp
index 7d78e2b..229b159 100644
--- a/camera/ndk/impl/ACameraDevice.cpp
+++ b/camera/ndk/impl/ACameraDevice.cpp
@@ -1347,6 +1347,12 @@
 }
 
 binder::Status
+CameraDevice::ServiceCallback::onRequestQueueEmpty() {
+    // onRequestQueueEmpty not yet implemented in NDK
+    return binder::Status::ok();
+}
+
+binder::Status
 CameraDevice::ServiceCallback::onRepeatingRequestError(int64_t lastFrameNumber) {
     binder::Status ret = binder::Status::ok();
 
diff --git a/camera/ndk/impl/ACameraDevice.h b/camera/ndk/impl/ACameraDevice.h
index 71e364d..eb8028b 100644
--- a/camera/ndk/impl/ACameraDevice.h
+++ b/camera/ndk/impl/ACameraDevice.h
@@ -65,7 +65,7 @@
     // Callbacks from camera service
     class ServiceCallback : public hardware::camera2::BnCameraDeviceCallbacks {
       public:
-        ServiceCallback(CameraDevice* device) : mDevice(device) {}
+        explicit ServiceCallback(CameraDevice* device) : mDevice(device) {}
         binder::Status onDeviceError(int32_t errorCode,
                            const CaptureResultExtras& resultExtras) override;
         binder::Status onDeviceIdle() override;
@@ -74,6 +74,7 @@
         binder::Status onResultReceived(const CameraMetadata& metadata,
                               const CaptureResultExtras& resultExtras) override;
         binder::Status onPrepared(int streamId) override;
+        binder::Status onRequestQueueEmpty() override;
         binder::Status onRepeatingRequestError(int64_t lastFrameNumber) override;
       private:
         const wp<CameraDevice> mDevice;
diff --git a/camera/ndk/impl/ACameraManager.cpp b/camera/ndk/impl/ACameraManager.cpp
index 35555ff..3f64bcc 100644
--- a/camera/ndk/impl/ACameraManager.cpp
+++ b/camera/ndk/impl/ACameraManager.cpp
@@ -28,11 +28,6 @@
 
 using namespace android;
 
-//constants shared between ACameraManager and CameraManagerGlobal
-namespace {
-    const int kMaxCameraIdLen = 32;
-}
-
 namespace android {
 // Static member definitions
 const char* CameraManagerGlobal::kCameraIdKey   = "CameraId";
@@ -125,17 +120,47 @@
         if (mCameraServiceListener == nullptr) {
             mCameraServiceListener = new CameraServiceListener(this);
         }
-        mCameraService->addListener(mCameraServiceListener);
+        std::vector<hardware::CameraStatus> cameraStatuses{};
+        mCameraService->addListener(mCameraServiceListener, &cameraStatuses);
+        for (auto& c : cameraStatuses) {
+            onStatusChangedLocked(c.status, c.cameraId);
+        }
 
         // setup vendor tags
         sp<VendorTagDescriptor> desc = new VendorTagDescriptor();
         binder::Status ret = mCameraService->getCameraVendorTagDescriptor(/*out*/desc.get());
 
         if (ret.isOk()) {
-            status_t err = VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc);
-            if (err != OK) {
-                ALOGE("%s: Failed to set vendor tag descriptors, received error %s (%d)",
-                        __FUNCTION__, strerror(-err), err);
+            if (0 < desc->getTagCount()) {
+                status_t err = VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc);
+                if (err != OK) {
+                    ALOGE("%s: Failed to set vendor tag descriptors, received error %s (%d)",
+                            __FUNCTION__, strerror(-err), err);
+                }
+            } else {
+                sp<VendorTagDescriptorCache> cache =
+                        new VendorTagDescriptorCache();
+                binder::Status res =
+                        mCameraService->getCameraVendorTagCache(
+                                /*out*/cache.get());
+                if (res.serviceSpecificErrorCode() ==
+                        hardware::ICameraService::ERROR_DISCONNECTED) {
+                    // No camera module available, not an error on devices with no cameras
+                    VendorTagDescriptorCache::clearGlobalVendorTagCache();
+                } else if (res.isOk()) {
+                    status_t err =
+                            VendorTagDescriptorCache::setAsGlobalVendorTagCache(
+                                    cache);
+                    if (err != OK) {
+                        ALOGE("%s: Failed to set vendor tag cache,"
+                                "received error %s (%d)", __FUNCTION__,
+                                strerror(-err), err);
+                    }
+                } else {
+                    VendorTagDescriptorCache::clearGlobalVendorTagCache();
+                    ALOGE("%s: Failed to setup vendor tag cache: %s",
+                            __FUNCTION__, res.toString8().string());
+                }
             }
         } else if (ret.serviceSpecificErrorCode() ==
                 hardware::ICameraService::ERROR_DEPRECATED_HAL) {
@@ -157,8 +182,8 @@
     sp<CameraManagerGlobal> cm = mCameraManager.promote();
     if (cm != nullptr) {
         AutoMutex lock(cm->mLock);
-        for (auto pair : cm->mDeviceStatusMap) {
-            int32_t cameraId = pair.first;
+        for (auto& pair : cm->mDeviceStatusMap) {
+            const String8 &cameraId = pair.first;
             cm->onStatusChangedLocked(
                     CameraServiceListener::STATUS_NOT_PRESENT, cameraId);
         }
@@ -174,8 +199,8 @@
     auto pair = mCallbacks.insert(cb);
     // Send initial callbacks if callback is newly registered
     if (pair.second) {
-        for (auto pair : mDeviceStatusMap) {
-            int32_t cameraId = pair.first;
+        for (auto& pair : mDeviceStatusMap) {
+            const String8& cameraId = pair.first;
             int32_t status = pair.second;
 
             sp<AMessage> msg = new AMessage(kWhatSendSingleCallback, mHandler);
@@ -183,7 +208,7 @@
                     callback->onCameraAvailable : callback->onCameraUnavailable;
             msg->setPointer(kCallbackFpKey, (void *) cb);
             msg->setPointer(kContextKey, callback->context);
-            msg->setInt32(kCameraIdKey, cameraId);
+            msg->setString(kCameraIdKey, AString(cameraId));
             msg->post();
         }
     }
@@ -196,6 +221,26 @@
     mCallbacks.erase(cb);
 }
 
+void CameraManagerGlobal::getCameraIdList(std::vector<String8> *cameraIds) {
+    // Ensure that we have initialized/refreshed the list of available devices
+    auto cs = getCameraService();
+    Mutex::Autolock _l(mLock);
+
+    for(auto& deviceStatus : mDeviceStatusMap) {
+        if (deviceStatus.second == hardware::ICameraServiceListener::STATUS_NOT_PRESENT ||
+                deviceStatus.second == hardware::ICameraServiceListener::STATUS_ENUMERATING) {
+            continue;
+        }
+        bool camera2Support = false;
+        binder::Status serviceRet = cs->supportsCameraApi(String16(deviceStatus.first),
+                hardware::ICameraService::API_VERSION_2, &camera2Support);
+        if (!serviceRet.isOk() || !camera2Support) {
+            continue;
+        }
+        cameraIds->push_back(deviceStatus.first);
+    }
+}
+
 bool CameraManagerGlobal::validStatus(int32_t status) {
     switch (status) {
         case hardware::ICameraServiceListener::STATUS_NOT_PRESENT:
@@ -217,14 +262,6 @@
     }
 }
 
-void CameraManagerGlobal::CallbackHandler::sendSingleCallback(
-        int32_t cameraId, void* context,
-        ACameraManager_AvailabilityCallback cb) const {
-    char cameraIdStr[kMaxCameraIdLen];
-    snprintf(cameraIdStr, sizeof(cameraIdStr), "%d", cameraId);
-    (*cb)(context, cameraIdStr);
-}
-
 void CameraManagerGlobal::CallbackHandler::onMessageReceived(
         const sp<AMessage> &msg) {
     switch (msg->what()) {
@@ -232,7 +269,7 @@
         {
             ACameraManager_AvailabilityCallback cb;
             void* context;
-            int32_t cameraId;
+            AString cameraId;
             bool found = msg->findPointer(kCallbackFpKey, (void**) &cb);
             if (!found) {
                 ALOGE("%s: Cannot find camera callback fp!", __FUNCTION__);
@@ -243,12 +280,12 @@
                 ALOGE("%s: Cannot find callback context!", __FUNCTION__);
                 return;
             }
-            found = msg->findInt32(kCameraIdKey, &cameraId);
+            found = msg->findString(kCameraIdKey, &cameraId);
             if (!found) {
                 ALOGE("%s: Cannot find camera ID!", __FUNCTION__);
                 return;
             }
-            sendSingleCallback(cameraId, context, cb);
+            (*cb)(context, cameraId.c_str());
             break;
         }
         default:
@@ -258,10 +295,10 @@
 }
 
 binder::Status CameraManagerGlobal::CameraServiceListener::onStatusChanged(
-        int32_t status, int32_t cameraId) {
+        int32_t status, const String16& cameraId) {
     sp<CameraManagerGlobal> cm = mCameraManager.promote();
     if (cm != nullptr) {
-        cm->onStatusChanged(status, cameraId);
+        cm->onStatusChanged(status, String8(cameraId));
     } else {
         ALOGE("Cannot deliver status change. Global camera manager died");
     }
@@ -269,40 +306,40 @@
 }
 
 void CameraManagerGlobal::onStatusChanged(
-        int32_t status, int32_t cameraId) {
+        int32_t status, const String8& cameraId) {
     Mutex::Autolock _l(mLock);
     onStatusChangedLocked(status, cameraId);
 }
 
 void CameraManagerGlobal::onStatusChangedLocked(
-        int32_t status, int32_t cameraId) {
-        if (!validStatus(status)) {
-            ALOGE("%s: Invalid status %d", __FUNCTION__, status);
-            return;
-        }
+        int32_t status, const String8& cameraId) {
+    if (!validStatus(status)) {
+        ALOGE("%s: Invalid status %d", __FUNCTION__, status);
+        return;
+    }
 
-        bool firstStatus = (mDeviceStatusMap.count(cameraId) == 0);
-        int32_t oldStatus = firstStatus ?
-                status : // first status
-                mDeviceStatusMap[cameraId];
+    bool firstStatus = (mDeviceStatusMap.count(cameraId) == 0);
+    int32_t oldStatus = firstStatus ?
+            status : // first status
+            mDeviceStatusMap[cameraId];
 
-        if (!firstStatus &&
-                isStatusAvailable(status) == isStatusAvailable(oldStatus)) {
-            // No status update. No need to send callback
-            return;
-        }
+    if (!firstStatus &&
+            isStatusAvailable(status) == isStatusAvailable(oldStatus)) {
+        // No status update. No need to send callback
+        return;
+    }
 
-        // Iterate through all registered callbacks
-        mDeviceStatusMap[cameraId] = status;
-        for (auto cb : mCallbacks) {
-            sp<AMessage> msg = new AMessage(kWhatSendSingleCallback, mHandler);
-            ACameraManager_AvailabilityCallback cbFp = isStatusAvailable(status) ?
-                    cb.mAvailable : cb.mUnavailable;
-            msg->setPointer(kCallbackFpKey, (void *) cbFp);
-            msg->setPointer(kContextKey, cb.mContext);
-            msg->setInt32(kCameraIdKey, cameraId);
-            msg->post();
-        }
+    // Iterate through all registered callbacks
+    mDeviceStatusMap[cameraId] = status;
+    for (auto cb : mCallbacks) {
+        sp<AMessage> msg = new AMessage(kWhatSendSingleCallback, mHandler);
+        ACameraManager_AvailabilityCallback cbFp = isStatusAvailable(status) ?
+                cb.mAvailable : cb.mUnavailable;
+        msg->setPointer(kCallbackFpKey, (void *) cbFp);
+        msg->setPointer(kContextKey, cb.mContext);
+        msg->setString(kCameraIdKey, AString(cameraId));
+        msg->post();
+    }
 }
 
 } // namespace android
@@ -311,77 +348,13 @@
  * ACameraManger Implementation
  */
 camera_status_t
-ACameraManager::getOrCreateCameraIdListLocked(ACameraIdList** cameraIdList) {
-    if (mCachedCameraIdList.numCameras == kCameraIdListNotInit) {
-        if (isCameraServiceDisabled()) {
-            mCachedCameraIdList.numCameras = 0;
-            mCachedCameraIdList.cameraIds = new const char*[0];
-            *cameraIdList = &mCachedCameraIdList;
-            return ACAMERA_OK;
-        }
-
-        int numCameras = 0;
-        Vector<char *> cameraIds;
-        sp<hardware::ICameraService> cs = CameraManagerGlobal::getInstance().getCameraService();
-        if (cs == nullptr) {
-            ALOGE("%s: Cannot reach camera service!", __FUNCTION__);
-            return ACAMERA_ERROR_CAMERA_DISCONNECTED;
-        }
-        // Get number of cameras
-        int numAllCameras = 0;
-        binder::Status serviceRet = cs->getNumberOfCameras(hardware::ICameraService::CAMERA_TYPE_ALL,
-                &numAllCameras);
-        if (!serviceRet.isOk()) {
-            ALOGE("%s: Error getting camera count: %s", __FUNCTION__,
-                    serviceRet.toString8().string());
-            numAllCameras = 0;
-        }
-        // Filter API2 compatible cameras and push to cameraIds
-        for (int i = 0; i < numAllCameras; i++) {
-            // TODO: Only suppot HALs that supports API2 directly now
-            bool camera2Support = false;
-            serviceRet = cs->supportsCameraApi(i, hardware::ICameraService::API_VERSION_2,
-                    &camera2Support);
-            char buf[kMaxCameraIdLen];
-            if (camera2Support) {
-                numCameras++;
-                mCameraIds.insert(i);
-                snprintf(buf, sizeof(buf), "%d", i);
-                size_t cameraIdSize = strlen(buf) + 1;
-                char *cameraId = new char[cameraIdSize];
-                if (!cameraId) {
-                    ALOGE("Allocate memory for ACameraIdList failed!");
-                    return ACAMERA_ERROR_NOT_ENOUGH_MEMORY;
-                }
-                strlcpy(cameraId, buf, cameraIdSize);
-                cameraIds.push(cameraId);
-            }
-        }
-        mCachedCameraIdList.numCameras = numCameras;
-        mCachedCameraIdList.cameraIds = new const char*[numCameras];
-        if (!mCachedCameraIdList.cameraIds) {
-            ALOGE("Allocate memory for ACameraIdList failed!");
-            return ACAMERA_ERROR_NOT_ENOUGH_MEMORY;
-        }
-        for (int i = 0; i < numCameras; i++) {
-            mCachedCameraIdList.cameraIds[i] = cameraIds[i];
-        }
-    }
-    *cameraIdList = &mCachedCameraIdList;
-    return ACAMERA_OK;
-}
-
-camera_status_t
 ACameraManager::getCameraIdList(ACameraIdList** cameraIdList) {
     Mutex::Autolock _l(mLock);
-    ACameraIdList* cachedList;
-    camera_status_t ret = getOrCreateCameraIdListLocked(&cachedList);
-    if (ret != ACAMERA_OK) {
-        ALOGE("Get camera ID list failed! err: %d", ret);
-        return ret;
-    }
 
-    int numCameras = cachedList->numCameras;
+    std::vector<String8> idList;
+    CameraManagerGlobal::getInstance().getCameraIdList(&idList);
+
+    int numCameras = idList.size();
     ACameraIdList *out = new ACameraIdList;
     if (!out) {
         ALOGE("Allocate memory for ACameraIdList failed!");
@@ -391,14 +364,16 @@
     out->cameraIds = new const char*[numCameras];
     if (!out->cameraIds) {
         ALOGE("Allocate memory for ACameraIdList failed!");
+        deleteCameraIdList(out);
         return ACAMERA_ERROR_NOT_ENOUGH_MEMORY;
     }
     for (int i = 0; i < numCameras; i++) {
-        const char* src = cachedList->cameraIds[i];
+        const char* src = idList[i].string();
         size_t dstSize = strlen(src) + 1;
         char* dst = new char[dstSize];
         if (!dst) {
             ALOGE("Allocate memory for ACameraIdList failed!");
+            deleteCameraIdList(out);
             return ACAMERA_ERROR_NOT_ENOUGH_MEMORY;
         }
         strlcpy(dst, src, dstSize);
@@ -413,7 +388,9 @@
     if (cameraIdList != nullptr) {
         if (cameraIdList->cameraIds != nullptr) {
             for (int i = 0; i < cameraIdList->numCameras; i ++) {
-                delete[] cameraIdList->cameraIds[i];
+                if (cameraIdList->cameraIds[i] != nullptr) {
+                    delete[] cameraIdList->cameraIds[i];
+                }
             }
             delete[] cameraIdList->cameraIds;
         }
@@ -424,29 +401,27 @@
 camera_status_t ACameraManager::getCameraCharacteristics(
         const char *cameraIdStr, ACameraMetadata **characteristics) {
     Mutex::Autolock _l(mLock);
-    ACameraIdList* cachedList;
-    // Make sure mCameraIds is initialized
-    camera_status_t ret = getOrCreateCameraIdListLocked(&cachedList);
-    if (ret != ACAMERA_OK) {
-        ALOGE("%s: Get camera ID list failed! err: %d", __FUNCTION__, ret);
-        return ret;
-    }
-    int cameraId = atoi(cameraIdStr);
-    if (mCameraIds.count(cameraId) == 0) {
-        ALOGE("%s: Camera ID %s does not exist!", __FUNCTION__, cameraIdStr);
-        return ACAMERA_ERROR_INVALID_PARAMETER;
-    }
+
     sp<hardware::ICameraService> cs = CameraManagerGlobal::getInstance().getCameraService();
     if (cs == nullptr) {
         ALOGE("%s: Cannot reach camera service!", __FUNCTION__);
         return ACAMERA_ERROR_CAMERA_DISCONNECTED;
     }
     CameraMetadata rawMetadata;
-    binder::Status serviceRet = cs->getCameraCharacteristics(cameraId, &rawMetadata);
+    binder::Status serviceRet = cs->getCameraCharacteristics(String16(cameraIdStr), &rawMetadata);
     if (!serviceRet.isOk()) {
-        ALOGE("Get camera characteristics from camera service failed: %s",
-                serviceRet.toString8().string());
-        return ACAMERA_ERROR_UNKNOWN; // should not reach here
+        switch(serviceRet.serviceSpecificErrorCode()) {
+            case hardware::ICameraService::ERROR_DISCONNECTED:
+                ALOGE("%s: Camera %s has been disconnected", __FUNCTION__, cameraIdStr);
+                return ACAMERA_ERROR_CAMERA_DISCONNECTED;
+            case hardware::ICameraService::ERROR_ILLEGAL_ARGUMENT:
+                ALOGE("%s: Camera ID %s does not exist!", __FUNCTION__, cameraIdStr);
+                return ACAMERA_ERROR_INVALID_PARAMETER;
+            default:
+                ALOGE("Get camera characteristics from camera service failed: %s",
+                        serviceRet.toString8().string());
+                return ACAMERA_ERROR_UNKNOWN; // should not reach here
+        }
     }
 
     *characteristics = new ACameraMetadata(
@@ -475,16 +450,16 @@
     sp<hardware::ICameraService> cs = CameraManagerGlobal::getInstance().getCameraService();
     if (cs == nullptr) {
         ALOGE("%s: Cannot reach camera service!", __FUNCTION__);
+        delete device;
         return ACAMERA_ERROR_CAMERA_DISCONNECTED;
     }
 
-    int id = atoi(cameraId);
     sp<hardware::camera2::ICameraDeviceCallbacks> callbacks = device->getServiceCallback();
     sp<hardware::camera2::ICameraDeviceUser> deviceRemote;
     // No way to get package name from native.
     // Send a zero length package name and let camera service figure it out from UID
     binder::Status serviceRet = cs->connectDevice(
-            callbacks, id, String16(""),
+            callbacks, String16(cameraId), String16(""),
             hardware::ICameraService::USE_CALLING_UID, /*out*/&deviceRemote);
 
     if (!serviceRet.isOk()) {
@@ -533,11 +508,5 @@
 }
 
 ACameraManager::~ACameraManager() {
-    Mutex::Autolock _l(mLock);
-    if (mCachedCameraIdList.numCameras != kCameraIdListNotInit) {
-        for (int i = 0; i < mCachedCameraIdList.numCameras; i++) {
-            delete[] mCachedCameraIdList.cameraIds[i];
-        }
-        delete[] mCachedCameraIdList.cameraIds;
-    }
+
 }
diff --git a/camera/ndk/impl/ACameraManager.h b/camera/ndk/impl/ACameraManager.h
index 3f2262f..97e4fd9 100644
--- a/camera/ndk/impl/ACameraManager.h
+++ b/camera/ndk/impl/ACameraManager.h
@@ -40,7 +40,7 @@
  * instances. Created when first ACameraManager is created and destroyed when
  * all ACameraManager instances are deleted.
  *
- * TODO: maybe CameraManagerGlobal is better sutied in libcameraclient?
+ * TODO: maybe CameraManagerGlobal is better suited in libcameraclient?
  */
 class CameraManagerGlobal final : public RefBase {
   public:
@@ -52,6 +52,11 @@
     void unregisterAvailabilityCallback(
             const ACameraManager_AvailabilityCallbacks *callback);
 
+    /**
+     * Return camera IDs that support camera2
+     */
+    void getCameraIdList(std::vector<String8> *cameraIds);
+
   private:
     sp<hardware::ICameraService> mCameraService;
     const int          kCameraServicePollDelay = 500000; // 0.5s
@@ -60,7 +65,7 @@
 
     class DeathNotifier : public IBinder::DeathRecipient {
       public:
-        DeathNotifier(CameraManagerGlobal* cm) : mCameraManager(cm) {}
+        explicit DeathNotifier(CameraManagerGlobal* cm) : mCameraManager(cm) {}
       protected:
         // IBinder::DeathRecipient implementation
         virtual void binderDied(const wp<IBinder>& who);
@@ -71,8 +76,8 @@
 
     class CameraServiceListener final : public hardware::BnCameraServiceListener {
       public:
-        CameraServiceListener(CameraManagerGlobal* cm) : mCameraManager(cm) {}
-        virtual binder::Status onStatusChanged(int32_t status, int32_t cameraId);
+        explicit CameraServiceListener(CameraManagerGlobal* cm) : mCameraManager(cm) {}
+        virtual binder::Status onStatusChanged(int32_t status, const String16& cameraId);
 
         // Torch API not implemented yet
         virtual binder::Status onTorchStatusChanged(int32_t, const String16&) {
@@ -86,7 +91,7 @@
 
     // Wrapper of ACameraManager_AvailabilityCallbacks so we can store it in std::set
     struct Callback {
-        Callback(const ACameraManager_AvailabilityCallbacks *callback) :
+        explicit Callback(const ACameraManager_AvailabilityCallbacks *callback) :
             mAvailable(callback->onCameraAvailable),
             mUnavailable(callback->onCameraUnavailable),
             mContext(callback->context) {}
@@ -125,22 +130,18 @@
       public:
         CallbackHandler() {}
         void onMessageReceived(const sp<AMessage> &msg) override;
-      private:
-        inline void sendSingleCallback(
-                int32_t cameraId, void* context,
-                ACameraManager_AvailabilityCallback cb) const;
     };
     sp<CallbackHandler> mHandler;
     sp<ALooper>         mCbLooper; // Looper thread where callbacks actually happen on
 
-    void onStatusChanged(int32_t status, int32_t cameraId);
-    void onStatusChangedLocked(int32_t status, int32_t cameraId);
+    void onStatusChanged(int32_t status, const String8& cameraId);
+    void onStatusChangedLocked(int32_t status, const String8& cameraId);
     // Utils for status
     static bool validStatus(int32_t status);
     static bool isStatusAvailable(int32_t status);
 
     // Map camera_id -> status
-    std::map<int32_t, int32_t> mDeviceStatusMap;
+    std::map<String8, int32_t> mDeviceStatusMap;
 
     // For the singleton instance
     static Mutex sLock;
@@ -157,7 +158,6 @@
  */
 struct ACameraManager {
     ACameraManager() :
-            mCachedCameraIdList({kCameraIdListNotInit, nullptr}),
             mGlobalManager(&(android::CameraManagerGlobal::getInstance())) {}
     ~ACameraManager();
     camera_status_t getCameraIdList(ACameraIdList** cameraIdList);
@@ -170,14 +170,10 @@
                                /*out*/ACameraDevice** device);
 
   private:
-    camera_status_t getOrCreateCameraIdListLocked(ACameraIdList** cameraIdList);
-
     enum {
         kCameraIdListNotInit = -1
     };
     android::Mutex         mLock;
-    std::set<int> mCameraIds;          // Init by getOrCreateCameraIdListLocked
-    ACameraIdList mCachedCameraIdList; // Init by getOrCreateCameraIdListLocked
     android::sp<android::CameraManagerGlobal> mGlobalManager;
 };
 
diff --git a/camera/ndk/impl/ACameraMetadata.cpp b/camera/ndk/impl/ACameraMetadata.cpp
index ab99e38..c0da592 100644
--- a/camera/ndk/impl/ACameraMetadata.cpp
+++ b/camera/ndk/impl/ACameraMetadata.cpp
@@ -278,6 +278,7 @@
         case ACAMERA_CONTROL_SCENE_MODE:
         case ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE:
         case ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST:
+        case ACAMERA_CONTROL_ENABLE_ZSL:
         case ACAMERA_EDGE_MODE:
         case ACAMERA_FLASH_MODE:
         case ACAMERA_HOT_PIXEL_MODE:
diff --git a/camera/ndk/impl/ACaptureRequest.h b/camera/ndk/impl/ACaptureRequest.h
index 6bd8406..3ef6a84 100644
--- a/camera/ndk/impl/ACaptureRequest.h
+++ b/camera/ndk/impl/ACaptureRequest.h
@@ -22,7 +22,7 @@
 using namespace android;
 
 struct ACameraOutputTarget {
-    ACameraOutputTarget(ANativeWindow* window) : mWindow(window) {};
+    explicit ACameraOutputTarget(ANativeWindow* window) : mWindow(window) {};
 
     bool operator == (const ACameraOutputTarget& other) const {
         return mWindow == other.mWindow;
diff --git a/camera/ndk/libcamera2ndk.map.txt b/camera/ndk/libcamera2ndk.map.txt
new file mode 100644
index 0000000..41bb22b
--- /dev/null
+++ b/camera/ndk/libcamera2ndk.map.txt
@@ -0,0 +1,46 @@
+LIBCAMERA2NDK {
+  global:
+    ACameraCaptureSession_abortCaptures;
+    ACameraCaptureSession_capture;
+    ACameraCaptureSession_close;
+    ACameraCaptureSession_getDevice;
+    ACameraCaptureSession_setRepeatingRequest;
+    ACameraCaptureSession_stopRepeating;
+    ACameraDevice_close;
+    ACameraDevice_createCaptureRequest;
+    ACameraDevice_createCaptureSession;
+    ACameraDevice_getId;
+    ACameraManager_create;
+    ACameraManager_delete;
+    ACameraManager_deleteCameraIdList;
+    ACameraManager_getCameraCharacteristics;
+    ACameraManager_getCameraIdList;
+    ACameraManager_openCamera;
+    ACameraManager_registerAvailabilityCallback;
+    ACameraManager_unregisterAvailabilityCallback;
+    ACameraMetadata_copy;
+    ACameraMetadata_free;
+    ACameraMetadata_getAllTags;
+    ACameraMetadata_getConstEntry;
+    ACameraOutputTarget_create;
+    ACameraOutputTarget_free;
+    ACaptureRequest_addTarget;
+    ACaptureRequest_free;
+    ACaptureRequest_getAllTags;
+    ACaptureRequest_getConstEntry;
+    ACaptureRequest_removeTarget;
+    ACaptureRequest_setEntry_double;
+    ACaptureRequest_setEntry_float;
+    ACaptureRequest_setEntry_i32;
+    ACaptureRequest_setEntry_i64;
+    ACaptureRequest_setEntry_rational;
+    ACaptureRequest_setEntry_u8;
+    ACaptureSessionOutputContainer_add;
+    ACaptureSessionOutputContainer_create;
+    ACaptureSessionOutputContainer_free;
+    ACaptureSessionOutputContainer_remove;
+    ACaptureSessionOutput_create;
+    ACaptureSessionOutput_free;
+  local:
+    *;
+};
diff --git a/camera/tests/Android.mk b/camera/tests/Android.mk
index 8019999..659484f 100644
--- a/camera/tests/Android.mk
+++ b/camera/tests/Android.mk
@@ -18,9 +18,11 @@
 
 LOCAL_SRC_FILES:= \
 	VendorTagDescriptorTests.cpp \
-	CameraBinderTests.cpp
+	CameraBinderTests.cpp \
+	CameraZSLTests.cpp
 
 LOCAL_SHARED_LIBRARIES := \
+	liblog \
 	libutils \
 	libcutils \
 	libcamera_metadata \
diff --git a/camera/tests/CameraBinderTests.cpp b/camera/tests/CameraBinderTests.cpp
index 828a758..946e3b8 100644
--- a/camera/tests/CameraBinderTests.cpp
+++ b/camera/tests/CameraBinderTests.cpp
@@ -65,14 +65,14 @@
 // Stub listener implementation
 class TestCameraServiceListener : public hardware::BnCameraServiceListener {
     std::map<String16, int32_t> mCameraTorchStatuses;
-    std::map<int32_t, int32_t> mCameraStatuses;
+    std::map<String16, int32_t> mCameraStatuses;
     mutable Mutex mLock;
     mutable Condition mCondition;
     mutable Condition mTorchCondition;
 public:
     virtual ~TestCameraServiceListener() {};
 
-    virtual binder::Status onStatusChanged(int32_t status, int32_t cameraId) {
+    virtual binder::Status onStatusChanged(int32_t status, const String16& cameraId) {
         Mutex::Autolock l(mLock);
         mCameraStatuses[cameraId] = status;
         mCondition.broadcast();
@@ -130,7 +130,7 @@
         return iter->second;
     };
 
-    int32_t getStatus(int32_t cameraId) const {
+    int32_t getStatus(const String16& cameraId) const {
         Mutex::Autolock l(mLock);
         const auto& iter = mCameraStatuses.find(cameraId);
         if (iter == mCameraStatuses.end()) {
@@ -151,6 +151,7 @@
         SENT_RESULT,
         UNINITIALIZED,
         REPEATING_REQUEST_ERROR,
+        REQUEST_QUEUE_EMPTY,
     };
 
 protected:
@@ -225,6 +226,14 @@
         return binder::Status::ok();
     }
 
+    virtual binder::Status onRequestQueueEmpty() {
+        Mutex::Autolock l(mLock);
+        mLastStatus = REQUEST_QUEUE_EMPTY;
+        mStatusesHit.push_back(mLastStatus);
+        mStatusCondition.broadcast();
+        return binder::Status::ok();
+    }
+
     // Test helper functions:
 
     bool hadError() const {
@@ -301,14 +310,16 @@
 
     // Check listener binder calls
     sp<TestCameraServiceListener> listener(new TestCameraServiceListener());
-    res = service->addListener(listener);
+    std::vector<hardware::CameraStatus> statuses;
+    res = service->addListener(listener, &statuses);
     EXPECT_TRUE(res.isOk()) << res;
 
-    EXPECT_TRUE(listener->waitForNumCameras(numCameras));
+    EXPECT_EQ(numCameras, static_cast<const int>(statuses.size()));
 
     for (int32_t i = 0; i < numCameras; i++) {
+        String16 cameraId = String16(String8::format("%d", i));
         bool isSupported = false;
-        res = service->supportsCameraApi(i,
+        res = service->supportsCameraApi(cameraId,
                 hardware::ICameraService::API_VERSION_2, &isSupported);
         EXPECT_TRUE(res.isOk()) << res;
 
@@ -319,12 +330,12 @@
 
         // Check metadata binder call
         CameraMetadata metadata;
-        res = service->getCameraCharacteristics(i, &metadata);
+        res = service->getCameraCharacteristics(cameraId, &metadata);
         EXPECT_TRUE(res.isOk()) << res;
         EXPECT_FALSE(metadata.isEmpty());
 
         // Make sure we're available, or skip device tests otherwise
-        int32_t s = listener->getStatus(i);
+        int32_t s = listener->getStatus(cameraId);
         EXPECT_EQ(::android::hardware::ICameraServiceListener::STATUS_PRESENT, s);
         if (s != ::android::hardware::ICameraServiceListener::STATUS_PRESENT) {
             continue;
@@ -333,7 +344,7 @@
         // Check connect binder calls
         sp<TestCameraDeviceCallbacks> callbacks(new TestCameraDeviceCallbacks());
         sp<hardware::camera2::ICameraDeviceUser> device;
-        res = service->connectDevice(callbacks, i, String16("meeeeeeeee!"),
+        res = service->connectDevice(callbacks, cameraId, String16("meeeeeeeee!"),
                 hardware::ICameraService::USE_CALLING_UID, /*out*/&device);
         EXPECT_TRUE(res.isOk()) << res;
         ASSERT_NE(nullptr, device.get());
@@ -343,12 +354,12 @@
         int32_t torchStatus = listener->getTorchStatus(i);
         if (torchStatus == hardware::ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF) {
             // Check torch calls
-            res = service->setTorchMode(String16(String8::format("%d", i)),
+            res = service->setTorchMode(cameraId,
                     /*enabled*/true, callbacks);
             EXPECT_TRUE(res.isOk()) << res;
             EXPECT_TRUE(listener->waitForTorchState(
                     hardware::ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON, i));
-            res = service->setTorchMode(String16(String8::format("%d", i)),
+            res = service->setTorchMode(cameraId,
                     /*enabled*/false, callbacks);
             EXPECT_TRUE(res.isOk()) << res;
             EXPECT_TRUE(listener->waitForTorchState(
@@ -370,7 +381,7 @@
     sp<TestCameraServiceListener> serviceListener;
 
     std::pair<sp<TestCameraDeviceCallbacks>, sp<hardware::camera2::ICameraDeviceUser>>
-            openNewDevice(int deviceId) {
+            openNewDevice(const String16& deviceId) {
         sp<TestCameraDeviceCallbacks> callbacks(new TestCameraDeviceCallbacks());
         sp<hardware::camera2::ICameraDeviceUser> device;
         {
@@ -406,7 +417,8 @@
         sp<IBinder> binder = sm->getService(String16("media.camera"));
         service = interface_cast<hardware::ICameraService>(binder);
         serviceListener = new TestCameraServiceListener();
-        service->addListener(serviceListener);
+        std::vector<hardware::CameraStatus> statuses;
+        service->addListener(serviceListener, &statuses);
         service->getNumberOfCameras(hardware::ICameraService::CAMERA_TYPE_BACKWARD_COMPATIBLE,
                 &numCameras);
     }
@@ -426,14 +438,14 @@
     EXPECT_TRUE(serviceListener->waitForNumCameras(numCameras));
     for (int32_t i = 0; i < numCameras; i++) {
         // Make sure we're available, or skip device tests otherwise
-        int32_t s = serviceListener->getStatus(i);
+        String16 cameraId(String8::format("%d",i));
+        int32_t s = serviceListener->getStatus(cameraId);
         EXPECT_EQ(hardware::ICameraServiceListener::STATUS_PRESENT, s);
         if (s != hardware::ICameraServiceListener::STATUS_PRESENT) {
             continue;
         }
         binder::Status res;
-
-        auto p = openNewDevice(i);
+        auto p = openNewDevice(cameraId);
         sp<TestCameraDeviceCallbacks> callbacks = p.first;
         sp<hardware::camera2::ICameraDeviceUser> device = p.second;
 
diff --git a/camera/tests/CameraZSLTests.cpp b/camera/tests/CameraZSLTests.cpp
new file mode 100644
index 0000000..ecca354
--- /dev/null
+++ b/camera/tests/CameraZSLTests.cpp
@@ -0,0 +1,295 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "CameraZSLTests"
+
+#include <gtest/gtest.h>
+
+#include <binder/ProcessState.h>
+#include <utils/Errors.h>
+#include <utils/Log.h>
+#include <gui/Surface.h>
+#include <gui/SurfaceComposerClient.h>
+#include <camera/CameraParameters.h>
+#include <camera/CameraMetadata.h>
+#include <camera/Camera.h>
+#include <android/hardware/ICameraService.h>
+
+using namespace android;
+using namespace android::hardware;
+
+class CameraZSLTests : public ::testing::Test,
+    public ::android::hardware::BnCameraClient {
+protected:
+
+    CameraZSLTests() : numCameras(0), mPreviewBufferCount(0),
+    mAutoFocusMessage(false), mSnapshotNotification(false) {}
+
+    //Gtest interface
+    void SetUp() override;
+    void TearDown() override;
+
+    //CameraClient interface
+    void notifyCallback(int32_t msgType, int32_t, int32_t) override;
+    void dataCallback(int32_t msgType, const sp<IMemory>&,
+            camera_frame_metadata_t *) override;
+    void dataCallbackTimestamp(nsecs_t, int32_t,
+            const sp<IMemory>&) override {};
+    void recordingFrameHandleCallbackTimestamp(nsecs_t,
+            native_handle_t*) override {};
+    void recordingFrameHandleCallbackTimestampBatch(
+            const std::vector<nsecs_t>&,
+            const std::vector<native_handle_t*>&) override {};
+
+    status_t waitForPreviewStart();
+    status_t waitForEvent(Mutex &mutex, Condition &condition, bool &flag);
+
+    mutable Mutex mPreviewLock;
+    mutable Condition mPreviewCondition;
+    mutable Mutex mAutoFocusLock;
+    mutable Condition mAutoFocusCondition;
+    mutable Mutex mSnapshotLock;
+    mutable Condition mSnapshotCondition;
+
+    int32_t numCameras;
+    size_t mPreviewBufferCount;
+    sp<ICameraService> mCameraService;
+    sp<SurfaceComposerClient> mComposerClient;
+    bool mAutoFocusMessage;
+    bool mSnapshotNotification;
+    static const int32_t kPreviewThreshold  = 8;
+    static const nsecs_t kPreviewTimeout    = 5000000000;  // 5 [s.]
+    static const nsecs_t kEventTimeout      = 10000000000; // 10 [s.]
+};
+
+void CameraZSLTests::SetUp() {
+    ::android::binder::Status rc;
+    ProcessState::self()->startThreadPool();
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> binder = sm->getService(String16("media.camera"));
+    mCameraService = interface_cast<ICameraService>(binder);
+    rc = mCameraService->getNumberOfCameras(
+            hardware::ICameraService::CAMERA_TYPE_ALL, &numCameras);
+    EXPECT_TRUE(rc.isOk());
+
+    mComposerClient = new SurfaceComposerClient;
+    ASSERT_EQ(NO_ERROR, mComposerClient->initCheck());
+}
+
+void CameraZSLTests::TearDown() {
+    mCameraService.clear();
+    mComposerClient->dispose();
+}
+
+void CameraZSLTests::notifyCallback(int32_t msgType, int32_t,
+        int32_t) {
+    if (CAMERA_MSG_FOCUS == msgType) {
+        Mutex::Autolock l(mAutoFocusLock);
+        mAutoFocusMessage = true;
+        mAutoFocusCondition.broadcast();
+    } else {
+        ALOGV("%s: msgType: %d", __FUNCTION__, msgType);
+    }
+};
+
+void CameraZSLTests::dataCallback(int32_t msgType, const sp<IMemory>& /*data*/,
+        camera_frame_metadata_t *) {
+
+    switch (msgType) {
+    case CAMERA_MSG_PREVIEW_FRAME: {
+        Mutex::Autolock l(mPreviewLock);
+        mPreviewBufferCount++;
+        mPreviewCondition.broadcast();
+        break;
+    }
+    case CAMERA_MSG_COMPRESSED_IMAGE: {
+        Mutex::Autolock l(mSnapshotLock);
+        mSnapshotNotification = true;
+        //TODO: Add checks on incoming Jpeg
+        mSnapshotCondition.broadcast();
+        break;
+    }
+    default:
+        ALOGV("%s: msgType: %d", __FUNCTION__, msgType);
+    }
+};
+
+status_t CameraZSLTests::waitForPreviewStart() {
+    status_t rc = NO_ERROR;
+    Mutex::Autolock l(mPreviewLock);
+    mPreviewBufferCount = 0;
+
+    while (mPreviewBufferCount < kPreviewThreshold) {
+        rc = mPreviewCondition.waitRelative(mPreviewLock,
+                kPreviewTimeout);
+        if (NO_ERROR != rc) {
+            break;
+        }
+    }
+
+    return rc;
+}
+
+status_t CameraZSLTests::waitForEvent(Mutex &mutex,
+        Condition &condition, bool &flag) {
+    status_t rc = NO_ERROR;
+    Mutex::Autolock l(mutex);
+    flag = false;
+
+    while (!flag) {
+        rc = condition.waitRelative(mutex,
+                kEventTimeout);
+        if (NO_ERROR != rc) {
+            break;
+        }
+    }
+
+    return rc;
+}
+
+TEST_F(CameraZSLTests, TestAllPictureSizes) {
+    ::android::binder::Status rc;
+
+    for (int32_t cameraId = 0; cameraId < numCameras; cameraId++) {
+        sp<Surface> previewSurface;
+        sp<SurfaceControl> surfaceControl;
+        sp<ICamera> cameraDevice;
+
+        String16 cameraIdStr = String16(String8::format("%d", cameraId));
+        bool isSupported = false;
+        rc = mCameraService->supportsCameraApi(cameraIdStr,
+                hardware::ICameraService::API_VERSION_1, &isSupported);
+        EXPECT_TRUE(rc.isOk());
+
+        // We only care about camera Camera1 ZSL support.
+        if (!isSupported) {
+            continue;
+        }
+
+        CameraMetadata metadata;
+        rc = mCameraService->getCameraCharacteristics(cameraIdStr, &metadata);
+        if (!rc.isOk()) {
+            // The test is relevant only for cameras with Hal 3.x
+            // support.
+            continue;
+        }
+        EXPECT_FALSE(metadata.isEmpty());
+        camera_metadata_entry_t availableCapabilities =
+                metadata.find(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
+        EXPECT_TRUE(0 < availableCapabilities.count);
+        bool isReprocessSupported = false;
+        const uint8_t *caps = availableCapabilities.data.u8;
+        for (size_t i = 0; i < availableCapabilities.count; i++) {
+            if (ANDROID_REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING ==
+                caps[i]) {
+                isReprocessSupported = true;
+                break;
+            }
+        }
+        if (!isReprocessSupported) {
+            // ZSL relies on this feature
+            continue;
+        }
+
+        rc = mCameraService->connect(this, cameraId,
+                String16("ZSLTest"), hardware::ICameraService::USE_CALLING_UID,
+                hardware::ICameraService::USE_CALLING_PID, &cameraDevice);
+        EXPECT_TRUE(rc.isOk());
+
+        CameraParameters params(cameraDevice->getParameters());
+
+        String8 focusModes(params.get(
+                CameraParameters::KEY_SUPPORTED_FOCUS_MODES));
+        bool isAFSupported = false;
+        const char *focusMode = nullptr;
+        if (focusModes.contains(CameraParameters::FOCUS_MODE_AUTO)) {
+            // If supported 'auto' should be set by default
+            isAFSupported = true;
+        } else if (focusModes.contains(
+                CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE;
+        } else if (focusModes.contains(
+                CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO;
+        } else if (focusModes.contains(CameraParameters::FOCUS_MODE_MACRO)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_MACRO;
+        }
+
+        if (!isAFSupported) {
+            // AF state is needed
+            continue;
+        }
+
+        if (nullptr != focusMode) {
+            params.set(CameraParameters::KEY_FOCUS_MODE, focusMode);
+            ASSERT_EQ(NO_ERROR, cameraDevice->setParameters(params.flatten()));
+        }
+
+        int previewWidth, previewHeight;
+        params.getPreviewSize(&previewWidth, &previewHeight);
+        ASSERT_TRUE((0 < previewWidth) && (0 < previewHeight));
+
+        surfaceControl = mComposerClient->createSurface(
+                String8("Test Surface"),
+                previewWidth, previewHeight,
+                CameraParameters::previewFormatToEnum(
+                        params.getPreviewFormat()),
+                GRALLOC_USAGE_HW_RENDER);
+
+        ASSERT_TRUE(nullptr != surfaceControl.get());
+        ASSERT_TRUE(surfaceControl->isValid());
+
+        SurfaceComposerClient::openGlobalTransaction();
+        ASSERT_EQ(NO_ERROR, surfaceControl->setLayer(0x7fffffff));
+        ASSERT_EQ(NO_ERROR, surfaceControl->show());
+        SurfaceComposerClient::closeGlobalTransaction();
+
+        previewSurface = surfaceControl->getSurface();
+        ASSERT_TRUE(previewSurface != NULL);
+        ASSERT_EQ(NO_ERROR, cameraDevice->setPreviewTarget(
+                previewSurface->getIGraphicBufferProducer()));
+
+        cameraDevice->setPreviewCallbackFlag(
+                CAMERA_FRAME_CALLBACK_FLAG_CAMCORDER);
+
+        Vector<Size> pictureSizes;
+        params.getSupportedPictureSizes(pictureSizes);
+        for (size_t i = 0; i < pictureSizes.size(); i++) {
+            params.setPictureSize(pictureSizes[i].width,
+                    pictureSizes[i].height);
+            ASSERT_EQ(NO_ERROR, cameraDevice->setParameters(params.flatten()));
+            ASSERT_EQ(NO_ERROR, cameraDevice->startPreview());
+            ASSERT_EQ(NO_ERROR, waitForPreviewStart());
+
+            ASSERT_EQ(NO_ERROR, cameraDevice->autoFocus());
+            ASSERT_EQ(NO_ERROR, waitForEvent(mAutoFocusLock,
+                    mAutoFocusCondition, mAutoFocusMessage));
+
+            ASSERT_EQ(NO_ERROR,
+                    cameraDevice->takePicture(CAMERA_MSG_COMPRESSED_IMAGE));
+            ASSERT_EQ(NO_ERROR, waitForEvent(mSnapshotLock, mSnapshotCondition,
+                    mSnapshotNotification));
+        }
+
+        cameraDevice->stopPreview();
+        rc = cameraDevice->disconnect();
+        EXPECT_TRUE(rc.isOk());
+    }
+}
diff --git a/cmds/screenrecord/Android.mk b/cmds/screenrecord/Android.mk
index 6747e60..a3b1a34 100644
--- a/cmds/screenrecord/Android.mk
+++ b/cmds/screenrecord/Android.mk
@@ -34,6 +34,7 @@
 	$(TOP)/frameworks/native/include/media/openmax \
 	external/jpeg
 
+LOCAL_CFLAGS := -Werror -Wall
 LOCAL_CFLAGS += -Wno-multichar
 #LOCAL_CFLAGS += -UNDEBUG
 
diff --git a/cmds/screenrecord/EglWindow.cpp b/cmds/screenrecord/EglWindow.cpp
index c16f2ad..5ea0706 100644
--- a/cmds/screenrecord/EglWindow.cpp
+++ b/cmds/screenrecord/EglWindow.cpp
@@ -21,7 +21,6 @@
 #define EGL_EGLEXT_PROTOTYPES
 
 #include <gui/BufferQueue.h>
-#include <gui/GraphicBufferAlloc.h>
 #include <gui/Surface.h>
 
 #include "EglWindow.h"
diff --git a/cmds/screenrecord/Overlay.cpp b/cmds/screenrecord/Overlay.cpp
index 9fd192c..17d7046 100644
--- a/cmds/screenrecord/Overlay.cpp
+++ b/cmds/screenrecord/Overlay.cpp
@@ -23,7 +23,6 @@
 #include <utils/Log.h>
 
 #include <gui/BufferQueue.h>
-#include <gui/GraphicBufferAlloc.h>
 #include <gui/Surface.h>
 #include <cutils/properties.h>
 #include <utils/misc.h>
@@ -203,7 +202,6 @@
     mGlConsumer->getTransformMatrix(texMatrix);
     nsecs_t monotonicNsec = mGlConsumer->getTimestamp();
     nsecs_t frameNumber = mGlConsumer->getFrameNumber();
-    int64_t droppedFrames = 0;
 
     if (mLastFrameNumber > 0) {
         mTotalDroppedFrames += size_t(frameNumber - mLastFrameNumber) - 1;
@@ -259,6 +257,11 @@
     const char* format = "%T";
     struct tm tm;
 
+    if (mUseMonotonicTimestamps) {
+        snprintf(buf, bufLen, "%" PRId64, monotonicNsec);
+        return;
+    }
+
     // localtime/strftime is not the fastest way to do this, but a trivial
     // benchmark suggests that the cost is negligible.
     int64_t realTime = mStartRealtimeNsecs +
diff --git a/cmds/screenrecord/Overlay.h b/cmds/screenrecord/Overlay.h
index ee3444d..1d8a569 100644
--- a/cmds/screenrecord/Overlay.h
+++ b/cmds/screenrecord/Overlay.h
@@ -37,7 +37,7 @@
  */
 class Overlay : public GLConsumer::FrameAvailableListener, Thread {
 public:
-    Overlay() : Thread(false),
+    Overlay(bool monotonicTimestamps) : Thread(false),
         mThreadResult(UNKNOWN_ERROR),
         mState(UNINITIALIZED),
         mFrameAvailable(false),
@@ -45,7 +45,8 @@
         mStartMonotonicNsecs(0),
         mStartRealtimeNsecs(0),
         mLastFrameNumber(-1),
-        mTotalDroppedFrames(0)
+        mTotalDroppedFrames(0),
+        mUseMonotonicTimestamps(monotonicTimestamps)
         {}
 
     // Creates a thread that performs the overlay.  Pass in the surface that
@@ -151,6 +152,8 @@
     nsecs_t mLastFrameNumber;
     size_t mTotalDroppedFrames;
 
+    bool mUseMonotonicTimestamps;
+
     static const char* kPropertyNames[];
 };
 
diff --git a/cmds/screenrecord/screenrecord.cpp b/cmds/screenrecord/screenrecord.cpp
index 59d5661..de0167a 100644
--- a/cmds/screenrecord/screenrecord.cpp
+++ b/cmds/screenrecord/screenrecord.cpp
@@ -51,6 +51,7 @@
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaMuxer.h>
 #include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
 
 #include "screenrecord.h"
 #include "Overlay.h"
@@ -68,6 +69,7 @@
 // Command-line parameters.
 static bool gVerbose = false;           // chatty on stdout
 static bool gRotate = false;            // rotate 90 degrees
+static bool gMonotonicTime = false;     // use system monotonic time for timestamps
 static enum {
     FORMAT_MP4, FORMAT_H264, FORMAT_FRAMES, FORMAT_RAW_FRAMES
 } gOutputFormat = FORMAT_MP4;           // data format for output
@@ -213,7 +215,6 @@
  */
 static status_t setDisplayProjection(const sp<IBinder>& dpy,
         const DisplayInfo& mainDpyInfo) {
-    status_t err;
 
     // Set the region of the layer stack we're interested in, which in our
     // case is "all of it".  If the app is rotated (so that the width of the
@@ -327,7 +328,7 @@
 
     assert((rawFp == NULL && muxer != NULL) || (rawFp != NULL && muxer == NULL));
 
-    Vector<sp<ABuffer> > buffers;
+    Vector<sp<MediaCodecBuffer> > buffers;
     err = encoder->getOutputBuffers(&buffers);
     if (err != NO_ERROR) {
         fprintf(stderr, "Unable to get output buffers (err=%d)\n", err);
@@ -410,7 +411,10 @@
                     // want to queue these up and do them on a different thread.
                     ATRACE_NAME("write sample");
                     assert(trackIdx != -1);
-                    err = muxer->writeSampleData(buffers[bufIndex], trackIdx,
+                    // TODO
+                    sp<ABuffer> buffer = new ABuffer(
+                            buffers[bufIndex]->data(), buffers[bufIndex]->size());
+                    err = muxer->writeSampleData(buffer, trackIdx,
                             ptsUsec, flags);
                     if (err != NO_ERROR) {
                         fprintf(stderr,
@@ -609,7 +613,7 @@
     sp<Overlay> overlay;
     if (gWantFrameTime) {
         // Send virtual display frames to an external texture.
-        overlay = new Overlay();
+        overlay = new Overlay(gMonotonicTime);
         err = overlay->start(encoderInputSurface, &bufferProducer);
         if (err != NO_ERROR) {
             if (encoder != NULL) encoder->release();
@@ -892,6 +896,7 @@
         { "show-frame-time",    no_argument,        NULL, 'f' },
         { "rotate",             no_argument,        NULL, 'r' },
         { "output-format",      required_argument,  NULL, 'o' },
+        { "monotonic-time",     no_argument,        NULL, 'm' },
         { NULL,                 0,                  NULL, 0 }
     };
 
@@ -971,6 +976,9 @@
                 return 2;
             }
             break;
+        case 'm':
+            gMonotonicTime = true;
+            break;
         default:
             if (ic != '?') {
                 fprintf(stderr, "getopt_long returned unexpected value 0x%x\n", ic);
diff --git a/cmds/stagefright/Android.mk b/cmds/stagefright/Android.mk
index 9e15a81..ff5e5d3 100644
--- a/cmds/stagefright/Android.mk
+++ b/cmds/stagefright/Android.mk
@@ -3,22 +3,23 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:=       \
-	stagefright.cpp \
-	jpeg.cpp	\
-	SineSource.cpp
+        stagefright.cpp \
+        jpeg.cpp        \
+        SineSource.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libmedia libutils libbinder libstagefright_foundation \
-	libjpeg libgui libcutils liblog
+        libstagefright libmedia libutils libbinder libstagefright_foundation \
+        libjpeg libgui libcutils liblog \
+        libhidlmemory \
+        android.hardware.media.omx@1.0 \
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	frameworks/av/media/libstagefright/include \
-	$(TOP)/frameworks/native/include/media/openmax \
-	external/jpeg \
+        frameworks/av/media/libstagefright \
+        frameworks/av/media/libstagefright/include \
+        $(TOP)/frameworks/native/include/media/openmax \
+        external/jpeg \
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -31,19 +32,18 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:=         \
-	SineSource.cpp    \
-	record.cpp
+        SineSource.cpp    \
+        record.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libmedia liblog libutils libbinder libstagefright_foundation
+        libstagefright libmedia liblog libutils libbinder libstagefright_foundation
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax \
-	$(TOP)/frameworks/native/include/media/hardware
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax \
+        $(TOP)/frameworks/native/include/media/hardware
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -56,19 +56,18 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:=         \
-	SineSource.cpp    \
-	recordvideo.cpp
+        SineSource.cpp    \
+        recordvideo.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libmedia liblog libutils libbinder libstagefright_foundation
+        libstagefright libmedia liblog libutils libbinder libstagefright_foundation
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax \
-	$(TOP)/frameworks/native/include/media/hardware
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax \
+        $(TOP)/frameworks/native/include/media/hardware
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -82,18 +81,17 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:=         \
-	SineSource.cpp    \
-	audioloop.cpp
+        SineSource.cpp    \
+        audioloop.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libmedia liblog libutils libbinder libstagefright_foundation
+        libstagefright libmedia liblog libutils libbinder libstagefright_foundation
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -109,15 +107,14 @@
         stream.cpp    \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright liblog libutils libbinder libgui \
-	libstagefright_foundation libmedia libcutils
+        libstagefright liblog libutils libbinder libgui \
+        libstagefright_foundation libmedia libcutils
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -129,44 +126,19 @@
 
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES:=         \
-	sf2.cpp    \
-
-LOCAL_SHARED_LIBRARIES := \
-	libstagefright liblog libutils libbinder libstagefright_foundation \
-	libmedia libgui libcutils libui
-
-LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
-
-LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
-
-LOCAL_MODULE_TAGS := optional
-
-LOCAL_MODULE:= sf2
-
-include $(BUILD_EXECUTABLE)
-
-################################################################################
-
-include $(CLEAR_VARS)
-
 LOCAL_SRC_FILES:=               \
-	codec.cpp               \
-	SimplePlayer.cpp        \
+        codec.cpp               \
+        SimplePlayer.cpp        \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright liblog libutils libbinder libstagefright_foundation \
-	libmedia libgui libcutils libui
+        libstagefright liblog libutils libbinder libstagefright_foundation \
+        libmedia libaudioclient libgui libcutils
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -179,37 +151,35 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
-	filters/argbtorgba.rs \
-	filters/nightvision.rs \
-	filters/saturation.rs \
-	mediafilter.cpp \
+        filters/argbtorgba.rs \
+        filters/nightvision.rs \
+        filters/saturation.rs \
+        mediafilter.cpp \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright \
-	liblog \
-	libutils \
-	libbinder \
-	libstagefright_foundation \
-	libmedia \
-	libgui \
-	libcutils \
-	libui \
-	libRScpp \
+        libstagefright \
+        liblog \
+        libutils \
+        libbinder \
+        libstagefright_foundation \
+        libmedia \
+        libgui \
+        libcutils \
+        libRScpp \
 
 LOCAL_C_INCLUDES:= \
-	$(TOP)/frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax \
-	$(TOP)/frameworks/rs/cpp \
-	$(TOP)/frameworks/rs \
+        $(TOP)/frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax \
+        $(TOP)/frameworks/rs/cpp \
+        $(TOP)/frameworks/rs \
 
 intermediates := $(call intermediates-dir-for,STATIC_LIBRARIES,libRS,TARGET,)
 LOCAL_C_INCLUDES += $(intermediates)
 
 LOCAL_STATIC_LIBRARIES:= \
-	libstagefright_mediafilter
+        libstagefright_mediafilter
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -222,18 +192,17 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:=               \
-	muxer.cpp            \
+        muxer.cpp            \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright liblog libutils libbinder libstagefright_foundation \
-	libmedia libgui libcutils libui libc
+        libstagefright liblog libutils libbinder libstagefright_foundation \
+        libcutils libc
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
diff --git a/cmds/stagefright/SimplePlayer.cpp b/cmds/stagefright/SimplePlayer.cpp
index 50913cd..afb7db3 100644
--- a/cmds/stagefright/SimplePlayer.cpp
+++ b/cmds/stagefright/SimplePlayer.cpp
@@ -25,6 +25,7 @@
 #include <media/AudioTrack.h>
 #include <media/ICrypto.h>
 #include <media/IMediaHTTPService.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -355,7 +356,7 @@
             err = state->mCodec->dequeueInputBuffer(&index, -1ll);
             CHECK_EQ(err, (status_t)OK);
 
-            const sp<ABuffer> &dstBuffer = state->mBuffers[0].itemAt(index);
+            const sp<MediaCodecBuffer> &dstBuffer = state->mBuffers[0].itemAt(index);
 
             CHECK_LE(srcBuffer->size(), dstBuffer->capacity());
             dstBuffer->setRange(0, srcBuffer->size());
@@ -482,11 +483,13 @@
             state->mAvailInputBufferIndices.erase(
                     state->mAvailInputBufferIndices.begin());
 
-            const sp<ABuffer> &dstBuffer =
+            const sp<MediaCodecBuffer> &dstBuffer =
                 state->mBuffers[0].itemAt(index);
+            sp<ABuffer> abuffer = new ABuffer(dstBuffer->base(), dstBuffer->capacity());
 
-            err = mExtractor->readSampleData(dstBuffer);
+            err = mExtractor->readSampleData(abuffer);
             CHECK_EQ(err, (status_t)OK);
+            dstBuffer->setRange(abuffer->offset(), abuffer->size());
 
             int64_t timeUs;
             CHECK_EQ(mExtractor->getSampleTime(&timeUs), (status_t)OK);
@@ -530,7 +533,7 @@
                     state->mCodec->releaseOutputBuffer(info->mIndex);
                 } else {
                     if (state->mAudioTrack != NULL) {
-                        const sp<ABuffer> &srcBuffer =
+                        const sp<MediaCodecBuffer> &srcBuffer =
                             state->mBuffers[1].itemAt(info->mIndex);
 
                         renderAudio(state, info, srcBuffer);
@@ -597,7 +600,7 @@
 }
 
 void SimplePlayer::renderAudio(
-        CodecState *state, BufferInfo *info, const sp<ABuffer> &buffer) {
+        CodecState *state, BufferInfo *info, const sp<MediaCodecBuffer> &buffer) {
     CHECK(state->mAudioTrack != NULL);
 
     if (state->mAudioTrack->stopped()) {
diff --git a/cmds/stagefright/SimplePlayer.h b/cmds/stagefright/SimplePlayer.h
index ae9dfd2..1269162 100644
--- a/cmds/stagefright/SimplePlayer.h
+++ b/cmds/stagefright/SimplePlayer.h
@@ -22,9 +22,10 @@
 
 struct ABuffer;
 struct ALooper;
-struct AudioTrack;
+class AudioTrack;
 class IGraphicBufferProducer;
 struct MediaCodec;
+class MediaCodecBuffer;
 struct NuMediaExtractor;
 class Surface;
 
@@ -73,7 +74,7 @@
     {
         sp<MediaCodec> mCodec;
         Vector<sp<ABuffer> > mCSD;
-        Vector<sp<ABuffer> > mBuffers[2];
+        Vector<sp<MediaCodecBuffer> > mBuffers[2];
 
         List<size_t> mAvailInputBufferIndices;
         List<BufferInfo> mAvailOutputBufferInfos;
@@ -101,7 +102,7 @@
     status_t onOutputFormatChanged(size_t trackIndex, CodecState *state);
 
     void renderAudio(
-            CodecState *state, BufferInfo *info, const sp<ABuffer> &buffer);
+            CodecState *state, BufferInfo *info, const sp<MediaCodecBuffer> &buffer);
 
     DISALLOW_EVIL_CONSTRUCTORS(SimplePlayer);
 };
diff --git a/cmds/stagefright/codec.cpp b/cmds/stagefright/codec.cpp
index dae9bbe..3108a67 100644
--- a/cmds/stagefright/codec.cpp
+++ b/cmds/stagefright/codec.cpp
@@ -26,12 +26,12 @@
 #include <media/ICrypto.h>
 #include <media/IMediaHTTPService.h>
 #include <media/IMediaPlayerService.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/AString.h>
-#include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaCodec.h>
 #include <media/stagefright/MediaCodecList.h>
 #include <media/stagefright/MediaDefs.h>
@@ -56,8 +56,8 @@
 
 struct CodecState {
     sp<MediaCodec> mCodec;
-    Vector<sp<ABuffer> > mInBuffers;
-    Vector<sp<ABuffer> > mOutBuffers;
+    Vector<sp<MediaCodecBuffer> > mInBuffers;
+    Vector<sp<MediaCodecBuffer> > mOutBuffers;
     bool mSignalledInputEOS;
     bool mSawOutputEOS;
     int64_t mNumBuffersDecoded;
@@ -174,10 +174,12 @@
                 if (err == OK) {
                     ALOGV("filling input buffer %zu", index);
 
-                    const sp<ABuffer> &buffer = state->mInBuffers.itemAt(index);
+                    const sp<MediaCodecBuffer> &buffer = state->mInBuffers.itemAt(index);
+                    sp<ABuffer> abuffer = new ABuffer(buffer->base(), buffer->capacity());
 
-                    err = extractor->readSampleData(buffer);
+                    err = extractor->readSampleData(abuffer);
                     CHECK_EQ(err, (status_t)OK);
+                    buffer->setRange(abuffer->offset(), abuffer->size());
 
                     int64_t timeUs;
                     err = extractor->getSampleTime(&timeUs);
@@ -398,8 +400,6 @@
 
     ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
     sp<ALooper> looper = new ALooper;
     looper->start();
 
diff --git a/cmds/stagefright/mediafilter.cpp b/cmds/stagefright/mediafilter.cpp
index 1183112..f219e69 100644
--- a/cmds/stagefright/mediafilter.cpp
+++ b/cmds/stagefright/mediafilter.cpp
@@ -26,10 +26,10 @@
 #include <gui/Surface.h>
 #include <media/ICrypto.h>
 #include <media/IMediaHTTPService.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
-#include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaCodec.h>
 #include <media/stagefright/NuMediaExtractor.h>
 #include <media/stagefright/RenderScriptWrapper.h>
@@ -69,7 +69,7 @@
 namespace android {
 
 struct SaturationRSFilter : RenderScriptWrapper::RSFilterCallback {
-    void init(RSC::sp<RSC::RS> context) {
+    void init(const RSC::sp<RSC::RS> &context) {
         mScript = new ScriptC_saturation(context);
         mScript->set_gSaturation(3.f);
     }
@@ -90,7 +90,7 @@
 };
 
 struct NightVisionRSFilter : RenderScriptWrapper::RSFilterCallback {
-    void init(RSC::sp<RSC::RS> context) {
+    void init(const RSC::sp<RSC::RS> &context) {
         mScript = new ScriptC_nightvision(context);
     }
 
@@ -110,7 +110,7 @@
 };
 
 struct ARGBToRGBARSFilter : RenderScriptWrapper::RSFilterCallback {
-    void init(RSC::sp<RSC::RS> context) {
+    void init(const RSC::sp<RSC::RS> &context) {
         mScript = new ScriptC_argbtorgba(context);
     }
 
@@ -131,8 +131,8 @@
 
 struct CodecState {
     sp<MediaCodec> mCodec;
-    Vector<sp<ABuffer> > mInBuffers;
-    Vector<sp<ABuffer> > mOutBuffers;
+    Vector<sp<MediaCodecBuffer> > mInBuffers;
+    Vector<sp<MediaCodecBuffer> > mOutBuffers;
     bool mSignalledInputEOS;
     bool mSawOutputEOS;
     int64_t mNumBuffersDecoded;
@@ -183,9 +183,9 @@
     }
     size_t outIndex = frame.index;
 
-    const sp<ABuffer> &srcBuffer =
+    const sp<MediaCodecBuffer> &srcBuffer =
         vidState->mOutBuffers.itemAt(outIndex);
-    const sp<ABuffer> &destBuffer =
+    const sp<MediaCodecBuffer> &destBuffer =
         filterState->mInBuffers.itemAt(filterIndex);
 
     sp<AMessage> srcFormat, destFormat;
@@ -532,10 +532,12 @@
                 if (err == OK) {
                     ALOGV("filling input buffer %zu", index);
 
-                    const sp<ABuffer> &buffer = state->mInBuffers.itemAt(index);
+                    const sp<MediaCodecBuffer> &buffer = state->mInBuffers.itemAt(index);
+                    sp<ABuffer> abuffer = new ABuffer(buffer->base(), buffer->capacity());
 
-                    err = extractor->readSampleData(buffer);
+                    err = extractor->readSampleData(abuffer);
                     CHECK(err == OK);
+                    buffer->setRange(abuffer->offset(), abuffer->size());
 
                     int64_t timeUs;
                     err = extractor->getSampleTime(&timeUs);
@@ -735,8 +737,6 @@
 
     ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
     android::sp<ALooper> looper = new ALooper;
     looper->start();
 
diff --git a/cmds/stagefright/muxer.cpp b/cmds/stagefright/muxer.cpp
index 0a3bdf3..4a83a4a 100644
--- a/cmds/stagefright/muxer.cpp
+++ b/cmds/stagefright/muxer.cpp
@@ -29,7 +29,6 @@
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/AString.h>
-#include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaCodec.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaMuxer.h>
@@ -319,9 +318,6 @@
     }
     ProcessState::self()->startThreadPool();
 
-    // Make sure setDataSource() works.
-    DataSource::RegisterDefaultSniffers();
-
     sp<ALooper> looper = new ALooper;
     looper->start();
 
diff --git a/cmds/stagefright/record.cpp b/cmds/stagefright/record.cpp
index 9aa0156..94c2e96 100644
--- a/cmds/stagefright/record.cpp
+++ b/cmds/stagefright/record.cpp
@@ -170,8 +170,6 @@
 int main(int argc, char **argv) {
     android::ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
 #if 1
     if (argc != 3) {
         fprintf(stderr, "usage: %s <filename> <input_color_format>\n", argv[0]);
diff --git a/cmds/stagefright/sf2.cpp b/cmds/stagefright/sf2.cpp
deleted file mode 100644
index 1a4bf08..0000000
--- a/cmds/stagefright/sf2.cpp
+++ /dev/null
@@ -1,682 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "sf2"
-#include <inttypes.h>
-#include <utils/Log.h>
-
-#include <signal.h>
-
-#include <binder/ProcessState.h>
-
-#include <media/IMediaHTTPService.h>
-
-#include <media/stagefright/foundation/hexdump.h>
-#include <media/stagefright/foundation/ABuffer.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/ALooper.h>
-#include <media/stagefright/foundation/AMessage.h>
-
-#include <media/stagefright/ACodec.h>
-#include <media/stagefright/DataSource.h>
-#include <media/stagefright/MediaBuffer.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/MediaExtractor.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MetaData.h>
-#include <media/stagefright/Utils.h>
-
-#include <gui/SurfaceComposerClient.h>
-#include <gui/Surface.h>
-
-#include "include/ESDS.h"
-
-using namespace android;
-
-volatile static bool ctrlc = false;
-
-static sighandler_t oldhandler = NULL;
-
-static void mysighandler(int signum) {
-    if (signum == SIGINT) {
-        ctrlc = true;
-        return;
-    }
-    oldhandler(signum);
-}
-
-struct Controller : public AHandler {
-    Controller(const char *uri, bool decodeAudio,
-               const sp<Surface> &surface, bool renderToSurface)
-        : mURI(uri),
-          mDecodeAudio(decodeAudio),
-          mSurface(surface),
-          mRenderToSurface(renderToSurface),
-          mCodec(new ACodec),
-          mIsVorbis(false) {
-        CHECK(!mDecodeAudio || mSurface == NULL);
-    }
-
-    void startAsync() {
-        (new AMessage(kWhatStart, this))->post();
-    }
-
-protected:
-    virtual ~Controller() {
-    }
-
-    virtual void printStatistics() {
-        int64_t delayUs = ALooper::GetNowUs() - mStartTimeUs;
-
-        if (mDecodeAudio) {
-            printf("%" PRId64 " bytes received. %.2f KB/sec\n",
-            mTotalBytesReceived,
-            mTotalBytesReceived * 1E6 / 1024 / delayUs);
-        } else {
-            printf("%d frames decoded, %.2f fps. %" PRId64 " bytes "
-                    "received. %.2f KB/sec\n",
-            mNumOutputBuffersReceived,
-            mNumOutputBuffersReceived * 1E6 / delayUs,
-            mTotalBytesReceived,
-            mTotalBytesReceived * 1E6 / 1024 / delayUs);
-        }
-    }
-
-    virtual void onMessageReceived(const sp<AMessage> &msg) {
-        if (ctrlc) {
-            printf("\n");
-            printStatistics();
-            (new AMessage(kWhatStop, this))->post();
-            ctrlc = false;
-        }
-        switch (msg->what()) {
-            case kWhatStart:
-            {
-#if 1
-                mDecodeLooper = looper();
-#else
-                mDecodeLooper = new ALooper;
-                mDecodeLooper->setName("sf2 decode looper");
-                mDecodeLooper->start();
-#endif
-
-                sp<DataSource> dataSource =
-                    DataSource::CreateFromURI(
-                            NULL /* httpService */, mURI.c_str());
-
-                sp<IMediaExtractor> extractor =
-                    MediaExtractor::Create(dataSource);
-
-                for (size_t i = 0; i < extractor->countTracks(); ++i) {
-                    sp<MetaData> meta = extractor->getTrackMetaData(i);
-
-                    const char *mime;
-                    CHECK(meta->findCString(kKeyMIMEType, &mime));
-
-                    if (!strncasecmp(mDecodeAudio ? "audio/" : "video/",
-                                     mime, 6)) {
-                        mSource = extractor->getTrack(i);
-
-                        if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_VORBIS)) {
-                            mIsVorbis = true;
-                        } else {
-                            mIsVorbis = false;
-                        }
-                        break;
-                    }
-                }
-                if (mSource == NULL) {
-                    printf("no %s track found\n", mDecodeAudio ? "audio" : "video");
-                    exit (1);
-                }
-
-                CHECK_EQ(mSource->start(), (status_t)OK);
-
-                mDecodeLooper->registerHandler(mCodec);
-
-                mCodec->setNotificationMessage(
-                        new AMessage(kWhatCodecNotify, this));
-
-                sp<AMessage> format = makeFormat(mSource->getFormat());
-
-                if (mSurface != NULL) {
-                    format->setObject("surface", mSurface);
-                }
-
-                mCodec->initiateSetup(format);
-
-                mCSDIndex = 0;
-                mStartTimeUs = ALooper::GetNowUs();
-                mNumOutputBuffersReceived = 0;
-                mTotalBytesReceived = 0;
-                mLeftOverBuffer = NULL;
-                mFinalResult = OK;
-                mSeekState = SEEK_NONE;
-
-                // (new AMessage(kWhatSeek, this))->post(5000000ll);
-                break;
-            }
-
-            case kWhatSeek:
-            {
-                printf("+");
-                fflush(stdout);
-
-                CHECK(mSeekState == SEEK_NONE
-                        || mSeekState == SEEK_FLUSH_COMPLETED);
-
-                if (mLeftOverBuffer != NULL) {
-                    mLeftOverBuffer->release();
-                    mLeftOverBuffer = NULL;
-                }
-
-                mSeekState = SEEK_FLUSHING;
-                mSeekTimeUs = 30000000ll;
-
-                mCodec->signalFlush();
-                break;
-            }
-
-            case kWhatStop:
-            {
-                if (mLeftOverBuffer != NULL) {
-                    mLeftOverBuffer->release();
-                    mLeftOverBuffer = NULL;
-                }
-
-                CHECK_EQ(mSource->stop(), (status_t)OK);
-                mSource.clear();
-
-                mCodec->initiateShutdown();
-                break;
-            }
-
-            case kWhatCodecNotify:
-            {
-                int32_t what;
-                CHECK(msg->findInt32("what", &what));
-
-                if (what == CodecBase::kWhatFillThisBuffer) {
-                    onFillThisBuffer(msg);
-                } else if (what == CodecBase::kWhatDrainThisBuffer) {
-                    if ((mNumOutputBuffersReceived++ % 16) == 0) {
-                        printf(".");
-                        fflush(stdout);
-                    }
-
-                    onDrainThisBuffer(msg);
-                } else if (what == CodecBase::kWhatEOS
-                        || what == CodecBase::kWhatError) {
-                    printf((what == CodecBase::kWhatEOS) ? "$\n" : "E\n");
-
-                    printStatistics();
-                    (new AMessage(kWhatStop, this))->post();
-                } else if (what == CodecBase::kWhatFlushCompleted) {
-                    mSeekState = SEEK_FLUSH_COMPLETED;
-                    mCodec->signalResume();
-
-                    (new AMessage(kWhatSeek, this))->post(5000000ll);
-                } else if (what == CodecBase::kWhatOutputFormatChanged) {
-                } else if (what == CodecBase::kWhatShutdownCompleted) {
-                    mDecodeLooper->unregisterHandler(mCodec->id());
-
-                    if (mDecodeLooper != looper()) {
-                        mDecodeLooper->stop();
-                    }
-
-                    looper()->stop();
-                }
-                break;
-            }
-
-            default:
-                TRESPASS();
-                break;
-        }
-    }
-
-private:
-    enum {
-        kWhatStart             = 'strt',
-        kWhatStop              = 'stop',
-        kWhatCodecNotify       = 'noti',
-        kWhatSeek              = 'seek',
-    };
-
-    sp<ALooper> mDecodeLooper;
-
-    AString mURI;
-    bool mDecodeAudio;
-    sp<Surface> mSurface;
-    bool mRenderToSurface;
-    sp<ACodec> mCodec;
-    sp<IMediaSource> mSource;
-    bool mIsVorbis;
-
-    Vector<sp<ABuffer> > mCSD;
-    size_t mCSDIndex;
-
-    MediaBuffer *mLeftOverBuffer;
-    status_t mFinalResult;
-
-    int64_t mStartTimeUs;
-    int32_t mNumOutputBuffersReceived;
-    int64_t mTotalBytesReceived;
-
-    enum SeekState {
-        SEEK_NONE,
-        SEEK_FLUSHING,
-        SEEK_FLUSH_COMPLETED,
-    };
-    SeekState mSeekState;
-    int64_t mSeekTimeUs;
-
-    sp<AMessage> makeFormat(const sp<MetaData> &meta) {
-        CHECK(mCSD.isEmpty());
-
-        const char *mime;
-        CHECK(meta->findCString(kKeyMIMEType, &mime));
-
-        sp<AMessage> msg = new AMessage;
-        msg->setString("mime", mime);
-
-        if (!strncasecmp("video/", mime, 6)) {
-            int32_t width, height;
-            CHECK(meta->findInt32(kKeyWidth, &width));
-            CHECK(meta->findInt32(kKeyHeight, &height));
-
-            msg->setInt32("width", width);
-            msg->setInt32("height", height);
-        } else {
-            CHECK(!strncasecmp("audio/", mime, 6));
-
-            int32_t numChannels, sampleRate;
-            CHECK(meta->findInt32(kKeyChannelCount, &numChannels));
-            CHECK(meta->findInt32(kKeySampleRate, &sampleRate));
-
-            msg->setInt32("channel-count", numChannels);
-            msg->setInt32("sample-rate", sampleRate);
-
-            int32_t isADTS;
-            if (meta->findInt32(kKeyIsADTS, &isADTS) && isADTS != 0) {
-                msg->setInt32("is-adts", true);
-            }
-        }
-
-        uint32_t type;
-        const void *data;
-        size_t size;
-        if (meta->findData(kKeyAVCC, &type, &data, &size)) {
-            // Parse the AVCDecoderConfigurationRecord
-
-            const uint8_t *ptr = (const uint8_t *)data;
-
-            CHECK(size >= 7);
-            CHECK_EQ((unsigned)ptr[0], 1u);  // configurationVersion == 1
-            uint8_t profile __unused = ptr[1];
-            uint8_t level __unused = ptr[3];
-
-            // There is decodable content out there that fails the following
-            // assertion, let's be lenient for now...
-            // CHECK((ptr[4] >> 2) == 0x3f);  // reserved
-
-            size_t lengthSize __unused = 1 + (ptr[4] & 3);
-
-            // commented out check below as H264_QVGA_500_NO_AUDIO.3gp
-            // violates it...
-            // CHECK((ptr[5] >> 5) == 7);  // reserved
-
-            size_t numSeqParameterSets = ptr[5] & 31;
-
-            ptr += 6;
-            size -= 6;
-
-            sp<ABuffer> buffer = new ABuffer(1024);
-            buffer->setRange(0, 0);
-
-            for (size_t i = 0; i < numSeqParameterSets; ++i) {
-                CHECK(size >= 2);
-                size_t length = U16_AT(ptr);
-
-                ptr += 2;
-                size -= 2;
-
-                CHECK(size >= length);
-
-                memcpy(buffer->data() + buffer->size(), "\x00\x00\x00\x01", 4);
-                memcpy(buffer->data() + buffer->size() + 4, ptr, length);
-                buffer->setRange(0, buffer->size() + 4 + length);
-
-                ptr += length;
-                size -= length;
-            }
-
-            buffer->meta()->setInt32("csd", true);
-            mCSD.push(buffer);
-
-            buffer = new ABuffer(1024);
-            buffer->setRange(0, 0);
-
-            CHECK(size >= 1);
-            size_t numPictureParameterSets = *ptr;
-            ++ptr;
-            --size;
-
-            for (size_t i = 0; i < numPictureParameterSets; ++i) {
-                CHECK(size >= 2);
-                size_t length = U16_AT(ptr);
-
-                ptr += 2;
-                size -= 2;
-
-                CHECK(size >= length);
-
-                memcpy(buffer->data() + buffer->size(), "\x00\x00\x00\x01", 4);
-                memcpy(buffer->data() + buffer->size() + 4, ptr, length);
-                buffer->setRange(0, buffer->size() + 4 + length);
-
-                ptr += length;
-                size -= length;
-            }
-
-            buffer->meta()->setInt32("csd", true);
-            mCSD.push(buffer);
-
-            msg->setBuffer("csd", buffer);
-        } else if (meta->findData(kKeyESDS, &type, &data, &size)) {
-            ESDS esds((const char *)data, size);
-            CHECK_EQ(esds.InitCheck(), (status_t)OK);
-
-            const void *codec_specific_data;
-            size_t codec_specific_data_size;
-            esds.getCodecSpecificInfo(
-                    &codec_specific_data, &codec_specific_data_size);
-
-            sp<ABuffer> buffer = new ABuffer(codec_specific_data_size);
-
-            memcpy(buffer->data(), codec_specific_data,
-                   codec_specific_data_size);
-
-            buffer->meta()->setInt32("csd", true);
-            mCSD.push(buffer);
-        } else if (meta->findData(kKeyVorbisInfo, &type, &data, &size)) {
-            sp<ABuffer> buffer = new ABuffer(size);
-            memcpy(buffer->data(), data, size);
-
-            buffer->meta()->setInt32("csd", true);
-            mCSD.push(buffer);
-
-            CHECK(meta->findData(kKeyVorbisBooks, &type, &data, &size));
-
-            buffer = new ABuffer(size);
-            memcpy(buffer->data(), data, size);
-
-            buffer->meta()->setInt32("csd", true);
-            mCSD.push(buffer);
-        }
-
-        int32_t maxInputSize;
-        if (meta->findInt32(kKeyMaxInputSize, &maxInputSize)) {
-            msg->setInt32("max-input-size", maxInputSize);
-        }
-
-        return msg;
-    }
-
-    void onFillThisBuffer(const sp<AMessage> &msg) {
-        sp<AMessage> reply;
-        CHECK(msg->findMessage("reply", &reply));
-
-        if (mSource == NULL || mSeekState == SEEK_FLUSHING) {
-            reply->setInt32("err", ERROR_END_OF_STREAM);
-            reply->post();
-            return;
-        }
-
-        sp<ABuffer> outBuffer;
-        CHECK(msg->findBuffer("buffer", &outBuffer));
-
-        if (mCSDIndex < mCSD.size()) {
-            outBuffer = mCSD.editItemAt(mCSDIndex++);
-            outBuffer->meta()->setInt64("timeUs", 0);
-        } else {
-            size_t sizeLeft = outBuffer->capacity();
-            outBuffer->setRange(0, 0);
-
-            int32_t n = 0;
-
-            for (;;) {
-                MediaBuffer *inBuffer;
-
-                if (mLeftOverBuffer != NULL) {
-                    inBuffer = mLeftOverBuffer;
-                    mLeftOverBuffer = NULL;
-                } else if (mFinalResult != OK) {
-                    break;
-                } else {
-                    MediaSource::ReadOptions options;
-                    if (mSeekState == SEEK_FLUSH_COMPLETED) {
-                        options.setSeekTo(mSeekTimeUs);
-                        mSeekState = SEEK_NONE;
-                    }
-                    status_t err = mSource->read(&inBuffer, &options);
-
-                    if (err != OK) {
-                        mFinalResult = err;
-                        break;
-                    }
-                }
-
-                size_t sizeNeeded = inBuffer->range_length();
-                if (mIsVorbis) {
-                    // Vorbis data is suffixed with the number of
-                    // valid samples on the page.
-                    sizeNeeded += sizeof(int32_t);
-                }
-
-                if (sizeNeeded > sizeLeft) {
-                    if (outBuffer->size() == 0) {
-                        ALOGE("Unable to fit even a single input buffer of size %zu.",
-                             sizeNeeded);
-                    }
-                    CHECK_GT(outBuffer->size(), 0u);
-
-                    mLeftOverBuffer = inBuffer;
-                    break;
-                }
-
-                ++n;
-
-                if (outBuffer->size() == 0) {
-                    int64_t timeUs;
-                    CHECK(inBuffer->meta_data()->findInt64(kKeyTime, &timeUs));
-
-                    outBuffer->meta()->setInt64("timeUs", timeUs);
-                }
-
-                memcpy(outBuffer->data() + outBuffer->size(),
-                       (const uint8_t *)inBuffer->data()
-                        + inBuffer->range_offset(),
-                       inBuffer->range_length());
-
-                if (mIsVorbis) {
-                    int32_t numPageSamples;
-                    if (!inBuffer->meta_data()->findInt32(
-                                kKeyValidSamples, &numPageSamples)) {
-                        numPageSamples = -1;
-                    }
-
-                    memcpy(outBuffer->data()
-                            + outBuffer->size() + inBuffer->range_length(),
-                           &numPageSamples, sizeof(numPageSamples));
-                }
-
-                outBuffer->setRange(
-                        0, outBuffer->size() + sizeNeeded);
-
-                sizeLeft -= sizeNeeded;
-
-                inBuffer->release();
-                inBuffer = NULL;
-
-                break;  // Don't coalesce
-            }
-
-            ALOGV("coalesced %d input buffers", n);
-
-            if (outBuffer->size() == 0) {
-                CHECK_NE(mFinalResult, (status_t)OK);
-
-                reply->setInt32("err", mFinalResult);
-                reply->post();
-                return;
-            }
-        }
-
-        reply->setBuffer("buffer", outBuffer);
-        reply->post();
-    }
-
-    void onDrainThisBuffer(const sp<AMessage> &msg) {
-        sp<ABuffer> buffer;
-        CHECK(msg->findBuffer("buffer", &buffer));
-
-        mTotalBytesReceived += buffer->size();
-
-        sp<AMessage> reply;
-        CHECK(msg->findMessage("reply", &reply));
-
-        if (mRenderToSurface) {
-            reply->setInt32("render", 1);
-        }
-
-        reply->post();
-    }
-
-    DISALLOW_EVIL_CONSTRUCTORS(Controller);
-};
-
-static void usage(const char *me) {
-    fprintf(stderr, "usage: %s\n", me);
-    fprintf(stderr, "       -h(elp)\n");
-    fprintf(stderr, "       -a(udio)\n");
-
-    fprintf(stderr,
-            "       -S(urface) Allocate output buffers on a surface.\n"
-            "       -R(ender)  Render surface-allocated buffers.\n");
-}
-
-int main(int argc, char **argv) {
-    android::ProcessState::self()->startThreadPool();
-
-    bool decodeAudio = false;
-    bool useSurface = false;
-    bool renderToSurface = false;
-
-    int res;
-    while ((res = getopt(argc, argv, "haSR")) >= 0) {
-        switch (res) {
-            case 'a':
-                decodeAudio = true;
-                break;
-
-            case 'S':
-                useSurface = true;
-                break;
-
-            case 'R':
-                renderToSurface = true;
-                break;
-
-            case '?':
-            case 'h':
-            default:
-            {
-                usage(argv[0]);
-                return 1;
-            }
-        }
-    }
-
-    argc -= optind;
-    argv += optind;
-
-    if (argc != 1) {
-        usage(argv[-optind]);
-        return 1;
-    }
-
-    DataSource::RegisterDefaultSniffers();
-
-    sp<ALooper> looper = new ALooper;
-    looper->setName("sf2");
-
-    sp<SurfaceComposerClient> composerClient;
-    sp<SurfaceControl> control;
-    sp<Surface> surface;
-
-    if (!decodeAudio && useSurface) {
-        composerClient = new SurfaceComposerClient;
-        CHECK_EQ(composerClient->initCheck(), (status_t)OK);
-
-        control = composerClient->createSurface(
-                String8("A Surface"),
-                1280,
-                800,
-                PIXEL_FORMAT_RGB_565,
-                0);
-
-        CHECK(control != NULL);
-        CHECK(control->isValid());
-
-        SurfaceComposerClient::openGlobalTransaction();
-        CHECK_EQ(control->setLayer(INT_MAX), (status_t)OK);
-        CHECK_EQ(control->show(), (status_t)OK);
-        SurfaceComposerClient::closeGlobalTransaction();
-
-        surface = control->getSurface();
-        CHECK(surface != NULL);
-
-        CHECK_EQ((status_t)OK,
-                 native_window_api_connect(
-                     surface.get(), NATIVE_WINDOW_API_MEDIA));
-    }
-
-    sp<Controller> controller =
-        new Controller(argv[0], decodeAudio, surface, renderToSurface);
-
-    looper->registerHandler(controller);
-
-    signal(SIGINT, mysighandler);
-
-    controller->startAsync();
-
-    CHECK_EQ(looper->start(true /* runOnCallingThread */), (status_t)OK);
-
-    looper->unregisterHandler(controller->id());
-
-    if (!decodeAudio && useSurface) {
-        CHECK_EQ((status_t)OK,
-                 native_window_api_disconnect(
-                     surface.get(), NATIVE_WINDOW_API_MEDIA));
-
-        composerClient->dispose();
-    }
-
-    return 0;
-}
-
diff --git a/cmds/stagefright/stagefright.cpp b/cmds/stagefright/stagefright.cpp
index ca68722..dfd5df7 100644
--- a/cmds/stagefright/stagefright.cpp
+++ b/cmds/stagefright/stagefright.cpp
@@ -64,6 +64,9 @@
 #include <gui/Surface.h>
 #include <gui/SurfaceComposerClient.h>
 
+#include <android/hardware/media/omx/1.0/IOmx.h>
+#include <media/omx/1.0/WOmx.h>
+
 using namespace android;
 
 static long gNumRepetitions;
@@ -401,7 +404,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct DetectSyncSource : public MediaSource {
-    DetectSyncSource(const sp<IMediaSource> &source);
+    explicit DetectSyncSource(const sp<IMediaSource> &source);
 
     virtual status_t start(MetaData *params = NULL);
     virtual status_t stop();
@@ -904,13 +907,23 @@
     }
 
     if (listComponents) {
-        sp<IServiceManager> sm = defaultServiceManager();
-        sp<IBinder> binder = sm->getService(String16("media.codec"));
-        sp<IMediaCodecService> service = interface_cast<IMediaCodecService>(binder);
+        sp<IOMX> omx;
+        if (property_get_bool("persist.media.treble_omx", true)) {
+            using namespace ::android::hardware::media::omx::V1_0;
+            sp<IOmx> tOmx = IOmx::getService();
 
-        CHECK(service.get() != NULL);
+            CHECK(tOmx.get() != NULL);
 
-        sp<IOMX> omx = service->getOMX();
+            omx = new utils::LWOmx(tOmx);
+        } else {
+            sp<IServiceManager> sm = defaultServiceManager();
+            sp<IBinder> binder = sm->getService(String16("media.codec"));
+            sp<IMediaCodecService> service = interface_cast<IMediaCodecService>(binder);
+
+            CHECK(service.get() != NULL);
+
+            omx = service->getOMX();
+        }
         CHECK(omx.get() != NULL);
 
         List<IOMX::ComponentInfo> list;
@@ -965,8 +978,6 @@
         }
     }
 
-    DataSource::RegisterDefaultSniffers();
-
     status_t err = OK;
 
     for (int k = 0; k < argc && err == OK; ++k) {
@@ -1037,6 +1048,10 @@
                 bool haveVideo = false;
                 for (size_t i = 0; i < numTracks; ++i) {
                     sp<IMediaSource> source = extractor->getTrack(i);
+                    if (source == nullptr) {
+                        fprintf(stderr, "skip NULL track %zu, track count %zu.\n", i, numTracks);
+                        continue;
+                    }
 
                     const char *mime;
                     CHECK(source->getFormat()->findCString(
@@ -1099,6 +1114,10 @@
                 }
 
                 mediaSource = extractor->getTrack(i);
+                if (mediaSource == nullptr) {
+                    fprintf(stderr, "skip NULL track %zu, total tracks %zu.\n", i, numTracks);
+                    return -1;
+                }
             }
         }
 
diff --git a/cmds/stagefright/stream.cpp b/cmds/stagefright/stream.cpp
index bca3832..2e1d240 100644
--- a/cmds/stagefright/stream.cpp
+++ b/cmds/stagefright/stream.cpp
@@ -45,7 +45,7 @@
 
 struct MyStreamSource : public BnStreamSource {
     // Object assumes ownership of fd.
-    MyStreamSource(int fd);
+    explicit MyStreamSource(int fd);
 
     virtual void setListener(const sp<IStreamListener> &listener);
     virtual void setBuffers(const Vector<sp<IMemory> > &buffers);
@@ -125,7 +125,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct MyConvertingStreamSource : public BnStreamSource {
-    MyConvertingStreamSource(const char *filename);
+    explicit MyConvertingStreamSource(const char *filename);
 
     virtual void setListener(const sp<IStreamListener> &listener);
     virtual void setBuffers(const Vector<sp<IMemory> > &buffers);
@@ -171,7 +171,8 @@
     mWriter = new MPEG2TSWriter(
             this, &MyConvertingStreamSource::WriteDataWrapper);
 
-    for (size_t i = 0; i < extractor->countTracks(); ++i) {
+    size_t numTracks = extractor->countTracks();
+    for (size_t i = 0; i < numTracks; ++i) {
         const sp<MetaData> &meta = extractor->getTrackMetaData(i);
 
         const char *mime;
@@ -181,7 +182,12 @@
             continue;
         }
 
-        CHECK_EQ(mWriter->addSource(extractor->getTrack(i)), (status_t)OK);
+        sp<IMediaSource> track = extractor->getTrack(i);
+        if (track == nullptr) {
+            fprintf(stderr, "skip NULL track %zu, total tracks %zu\n", i, numTracks);
+            continue;
+        }
+        CHECK_EQ(mWriter->addSource(track), (status_t)OK);
     }
 
     CHECK_EQ(mWriter->start(), (status_t)OK);
@@ -301,8 +307,6 @@
 int main(int argc, char **argv) {
     android::ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
     if (argc != 2) {
         fprintf(stderr, "Usage: %s filename\n", argv[0]);
         return 1;
@@ -349,9 +353,7 @@
 
     sp<IStreamSource> source;
 
-    char prop[PROPERTY_VALUE_MAX];
-    bool usemp4 = property_get("media.stagefright.use-mp4source", prop, NULL) &&
-            (!strcmp(prop, "1") || !strcasecmp(prop, "true"));
+    bool usemp4 = property_get_bool("media.stagefright.use-mp4source", false);
 
     size_t len = strlen(argv[1]);
     if ((!usemp4 && len >= 3 && !strcasecmp(".ts", &argv[1][len - 3])) ||
diff --git a/drm/common/Android.mk b/drm/common/Android.mk
index db67534..ca3d2cd 100644
--- a/drm/common/Android.mk
+++ b/drm/common/Android.mk
@@ -31,6 +31,8 @@
     DrmInfoEvent.cpp \
     ReadWriteUtils.cpp
 
+LOCAL_STATIC_LIBRARIES := libbinder
+
 LOCAL_C_INCLUDES := \
     $(TOP)/frameworks/av/include \
     $(TOP)/frameworks/av/drm/libdrmframework/include \
diff --git a/drm/common/DrmInfoEvent.cpp b/drm/common/DrmInfoEvent.cpp
index 27a5a2d..703e363 100644
--- a/drm/common/DrmInfoEvent.cpp
+++ b/drm/common/DrmInfoEvent.cpp
@@ -19,7 +19,7 @@
 
 using namespace android;
 
-DrmInfoEvent::DrmInfoEvent(int uniqueId, int infoType, const String8 message)
+DrmInfoEvent::DrmInfoEvent(int uniqueId, int infoType, const String8 &message)
     : mUniqueId(uniqueId),
       mInfoType(infoType),
       mMessage(message) {
diff --git a/drm/common/IDrmManagerService.cpp b/drm/common/IDrmManagerService.cpp
index caae75f..44f98dd 100644
--- a/drm/common/IDrmManagerService.cpp
+++ b/drm/common/IDrmManagerService.cpp
@@ -33,7 +33,7 @@
 
 #include "IDrmManagerService.h"
 
-#define INVALID_BUFFER_LENGTH -1
+#define INVALID_BUFFER_LENGTH (-1)
 #define MAX_BINDER_TRANSACTION_SIZE ((1*1024*1024)-(4096*2))
 
 using namespace android;
diff --git a/drm/common/ReadWriteUtils.cpp b/drm/common/ReadWriteUtils.cpp
index d696f16..16b5b34 100644
--- a/drm/common/ReadWriteUtils.cpp
+++ b/drm/common/ReadWriteUtils.cpp
@@ -30,7 +30,7 @@
 
 using namespace android;
 
-#define FAILURE -1
+#define FAILURE (-1)
 
 String8 ReadWriteUtils::readBytes(const String8& filePath) {
     FILE* file = NULL;
diff --git a/drm/drmserver/DrmManager.cpp b/drm/drmserver/DrmManager.cpp
index e168ba2..bf04a89 100644
--- a/drm/drmserver/DrmManager.cpp
+++ b/drm/drmserver/DrmManager.cpp
@@ -33,7 +33,7 @@
 #include "DrmManager.h"
 #include "ReadWriteUtils.h"
 
-#define DECRYPT_FILE_ERROR -1
+#define DECRYPT_FILE_ERROR (-1)
 
 using namespace android;
 
@@ -88,14 +88,9 @@
 }
 
 status_t DrmManager::loadPlugIns() {
-
-    String8 vendorPluginDirPath("/vendor/lib/drm");
-    loadPlugIns(vendorPluginDirPath);
-
     String8 pluginDirPath("/system/lib/drm");
     loadPlugIns(pluginDirPath);
     return DRM_NO_ERROR;
-
 }
 
 status_t DrmManager::loadPlugIns(const String8& plugInDirPath) {
@@ -413,7 +408,7 @@
         handle->decryptId = mDecryptSessionId + 1;
 
         for (size_t index = 0; index < plugInIdList.size(); index++) {
-            String8 plugInId = plugInIdList.itemAt(index);
+            const String8& plugInId = plugInIdList.itemAt(index);
             IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId);
             result = rDrmEngine.openDecryptSession(uniqueId, handle, fd, offset, length, mime);
 
@@ -441,7 +436,7 @@
         handle->decryptId = mDecryptSessionId + 1;
 
         for (size_t index = 0; index < plugInIdList.size(); index++) {
-            String8 plugInId = plugInIdList.itemAt(index);
+            const String8& plugInId = plugInIdList.itemAt(index);
             IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId);
             result = rDrmEngine.openDecryptSession(uniqueId, handle, uri, mime);
 
@@ -470,7 +465,7 @@
         handle->decryptId = mDecryptSessionId + 1;
 
         for (size_t index = 0; index < plugInIdList.size(); index++) {
-            String8 plugInId = plugInIdList.itemAt(index);
+            const String8& plugInId = plugInIdList.itemAt(index);
             IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId);
             result = rDrmEngine.openDecryptSession(uniqueId, handle, buf, mimeType);
 
diff --git a/drm/libdrmframework/DrmManagerClientImpl.cpp b/drm/libdrmframework/DrmManagerClientImpl.cpp
index cbd013e..c047eb1 100644
--- a/drm/libdrmframework/DrmManagerClientImpl.cpp
+++ b/drm/libdrmframework/DrmManagerClientImpl.cpp
@@ -28,7 +28,7 @@
 
 using namespace android;
 
-#define INVALID_VALUE -1
+#define INVALID_VALUE (-1)
 
 Mutex DrmManagerClientImpl::sMutex;
 sp<IDrmManagerService> DrmManagerClientImpl::sDrmManagerService;
diff --git a/drm/libdrmframework/include/IDrmManagerService.h b/drm/libdrmframework/include/IDrmManagerService.h
index fe55650..0376b49 100644
--- a/drm/libdrmframework/include/IDrmManagerService.h
+++ b/drm/libdrmframework/include/IDrmManagerService.h
@@ -169,7 +169,7 @@
 class BpDrmManagerService: public BpInterface<IDrmManagerService>
 {
 public:
-    BpDrmManagerService(const sp<IBinder>& impl)
+    explicit BpDrmManagerService(const sp<IBinder>& impl)
             : BpInterface<IDrmManagerService>(impl) {}
 
     virtual int addUniqueId(bool isNative);
diff --git a/drm/libdrmframework/include/IDrmServiceListener.h b/drm/libdrmframework/include/IDrmServiceListener.h
index 7f7109f..78c5d1a 100644
--- a/drm/libdrmframework/include/IDrmServiceListener.h
+++ b/drm/libdrmframework/include/IDrmServiceListener.h
@@ -49,7 +49,7 @@
 class BpDrmServiceListener: public BpInterface<IDrmServiceListener>
 {
 public:
-    BpDrmServiceListener(const sp<IBinder>& impl)
+    explicit BpDrmServiceListener(const sp<IBinder>& impl)
             : BpInterface<IDrmServiceListener>(impl) {}
 
     virtual status_t notify(const DrmInfoEvent& event);
diff --git a/drm/libdrmframework/plugins/common/util/src/MimeTypeUtil.cpp b/drm/libdrmframework/plugins/common/util/src/MimeTypeUtil.cpp
index 4bd1adb..3b1566f 100644
--- a/drm/libdrmframework/plugins/common/util/src/MimeTypeUtil.cpp
+++ b/drm/libdrmframework/plugins/common/util/src/MimeTypeUtil.cpp
@@ -115,7 +115,7 @@
  * replacement mimetype otherwise the original mimetype
  * is returned.
  *
- * If the mimetype is of unsupported group i.e. application / *
+ * If the mimetype is of unsupported group i.e. application/...
  * then "unsupported/drm.mimetype" will be returned.
  *
  * @param mimeType - mimetype in lower case to convert.
diff --git a/drm/libdrmframework/plugins/forward-lock/FwdLockEngine/include/FwdLockEngine.h b/drm/libdrmframework/plugins/forward-lock/FwdLockEngine/include/FwdLockEngine.h
index a31b951..d222703 100644
--- a/drm/libdrmframework/plugins/forward-lock/FwdLockEngine/include/FwdLockEngine.h
+++ b/drm/libdrmframework/plugins/forward-lock/FwdLockEngine/include/FwdLockEngine.h
@@ -539,7 +539,7 @@
             offset = 0;
         }
 
-        DecodeSession(int fd) {
+        explicit DecodeSession(int fd) {
             fileDesc = fd;
             offset = 0;
         }
diff --git a/drm/libdrmframework/plugins/forward-lock/internal-format/doc/FwdLock.html b/drm/libdrmframework/plugins/forward-lock/internal-format/doc/FwdLock.html
old mode 100755
new mode 100644
diff --git a/drm/libdrmframework/plugins/passthru/src/DrmPassthruPlugIn.cpp b/drm/libdrmframework/plugins/passthru/src/DrmPassthruPlugIn.cpp
index 084e323..7f5b0ec 100644
--- a/drm/libdrmframework/plugins/passthru/src/DrmPassthruPlugIn.cpp
+++ b/drm/libdrmframework/plugins/passthru/src/DrmPassthruPlugIn.cpp
@@ -52,12 +52,12 @@
 
 }
 
-DrmMetadata* DrmPassthruPlugIn::onGetMetadata(int uniqueId, const String8* path) {
+DrmMetadata* DrmPassthruPlugIn::onGetMetadata(int /*uniqueId*/, const String8* /*path*/) {
     return NULL;
 }
 
 DrmConstraints* DrmPassthruPlugIn::onGetConstraints(
-        int uniqueId, const String8* path, int action) {
+        int uniqueId, const String8* /*path*/, int /*action*/) {
     ALOGV("DrmPassthruPlugIn::onGetConstraints From Path: %d", uniqueId);
     DrmConstraints* drmConstraints = new DrmConstraints();
 
@@ -108,7 +108,7 @@
 }
 
 status_t DrmPassthruPlugIn::onSetOnInfoListener(
-            int uniqueId, const IDrmEngine::OnInfoListener* infoListener) {
+            int uniqueId, const IDrmEngine::OnInfoListener* /*infoListener*/) {
     ALOGV("DrmPassthruPlugIn::onSetOnInfoListener : %d", uniqueId);
     return DRM_NO_ERROR;
 }
@@ -135,8 +135,8 @@
     return drmSupportInfo;
 }
 
-status_t DrmPassthruPlugIn::onSaveRights(int uniqueId, const DrmRights& drmRights,
-            const String8& rightsPath, const String8& contentPath) {
+status_t DrmPassthruPlugIn::onSaveRights(int uniqueId, const DrmRights& /*drmRights*/,
+            const String8& /*rightsPath*/, const String8& /*contentPath*/) {
     ALOGV("DrmPassthruPlugIn::onSaveRights : %d", uniqueId);
     return DRM_NO_ERROR;
 }
@@ -157,49 +157,50 @@
     return drmInfo;
 }
 
-bool DrmPassthruPlugIn::onCanHandle(int uniqueId, const String8& path) {
+bool DrmPassthruPlugIn::onCanHandle(int /*uniqueId*/, const String8& path) {
     ALOGV("DrmPassthruPlugIn::canHandle: %s ", path.string());
     String8 extension = path.getPathExtension();
     extension.toLower();
     return (String8(".passthru") == extension);
 }
 
-String8 DrmPassthruPlugIn::onGetOriginalMimeType(int uniqueId, const String8& path, int fd) {
+String8 DrmPassthruPlugIn::onGetOriginalMimeType(int uniqueId,
+            const String8& /*path*/, int /*fd*/) {
     ALOGV("DrmPassthruPlugIn::onGetOriginalMimeType() : %d", uniqueId);
     return String8("video/passthru");
 }
 
 int DrmPassthruPlugIn::onGetDrmObjectType(
-            int uniqueId, const String8& path, const String8& mimeType) {
+            int uniqueId, const String8& /*path*/, const String8& /*mimeType*/) {
     ALOGV("DrmPassthruPlugIn::onGetDrmObjectType() : %d", uniqueId);
     return DrmObjectType::UNKNOWN;
 }
 
-int DrmPassthruPlugIn::onCheckRightsStatus(int uniqueId, const String8& path, int action) {
+int DrmPassthruPlugIn::onCheckRightsStatus(int uniqueId, const String8& /*path*/, int /*action*/) {
     ALOGV("DrmPassthruPlugIn::onCheckRightsStatus() : %d", uniqueId);
     int rightsStatus = RightsStatus::RIGHTS_VALID;
     return rightsStatus;
 }
 
-status_t DrmPassthruPlugIn::onConsumeRights(int uniqueId, DecryptHandle* decryptHandle,
-            int action, bool reserve) {
+status_t DrmPassthruPlugIn::onConsumeRights(int uniqueId,
+            DecryptHandle* /*decryptHandle*/, int /*action*/, bool /*reserve*/) {
     ALOGV("DrmPassthruPlugIn::onConsumeRights() : %d", uniqueId);
     return DRM_NO_ERROR;
 }
 
-status_t DrmPassthruPlugIn::onSetPlaybackStatus(int uniqueId, DecryptHandle* decryptHandle,
-            int playbackStatus, int64_t position) {
+status_t DrmPassthruPlugIn::onSetPlaybackStatus(int uniqueId,
+            DecryptHandle* /*decryptHandle*/, int /*playbackStatus*/, int64_t /*position*/) {
     ALOGV("DrmPassthruPlugIn::onSetPlaybackStatus() : %d", uniqueId);
     return DRM_NO_ERROR;
 }
 
-bool DrmPassthruPlugIn::onValidateAction(int uniqueId, const String8& path,
-            int action, const ActionDescription& description) {
+bool DrmPassthruPlugIn::onValidateAction(int uniqueId,
+            const String8& /*path*/, int /*action*/, const ActionDescription& /*description*/) {
     ALOGV("DrmPassthruPlugIn::onValidateAction() : %d", uniqueId);
     return true;
 }
 
-status_t DrmPassthruPlugIn::onRemoveRights(int uniqueId, const String8& path) {
+status_t DrmPassthruPlugIn::onRemoveRights(int uniqueId, const String8& /*path*/) {
     ALOGV("DrmPassthruPlugIn::onRemoveRights() : %d", uniqueId);
     return DRM_NO_ERROR;
 }
@@ -209,13 +210,13 @@
     return DRM_NO_ERROR;
 }
 
-status_t DrmPassthruPlugIn::onOpenConvertSession(int uniqueId, int convertId) {
+status_t DrmPassthruPlugIn::onOpenConvertSession(int uniqueId, int /*convertId*/) {
     ALOGV("DrmPassthruPlugIn::onOpenConvertSession() : %d", uniqueId);
     return DRM_NO_ERROR;
 }
 
 DrmConvertedStatus* DrmPassthruPlugIn::onConvertData(
-            int uniqueId, int convertId, const DrmBuffer* inputData) {
+            int uniqueId, int /*convertId*/, const DrmBuffer* inputData) {
     ALOGV("DrmPassthruPlugIn::onConvertData() : %d", uniqueId);
     DrmBuffer* convertedData = NULL;
 
@@ -229,13 +230,13 @@
     return new DrmConvertedStatus(DrmConvertedStatus::STATUS_OK, convertedData, 0 /*offset*/);
 }
 
-DrmConvertedStatus* DrmPassthruPlugIn::onCloseConvertSession(int uniqueId, int convertId) {
+DrmConvertedStatus* DrmPassthruPlugIn::onCloseConvertSession(int uniqueId, int /*convertId*/) {
     ALOGV("DrmPassthruPlugIn::onCloseConvertSession() : %d", uniqueId);
     return new DrmConvertedStatus(DrmConvertedStatus::STATUS_OK, NULL, 0 /*offset*/);
 }
 
 status_t DrmPassthruPlugIn::onOpenDecryptSession(
-            int uniqueId, DecryptHandle* decryptHandle, int fd, off64_t offset, off64_t length) {
+            int uniqueId, DecryptHandle* decryptHandle, int /*fd*/, off64_t /*offset*/, off64_t /*length*/) {
     ALOGV("DrmPassthruPlugIn::onOpenDecryptSession() : %d", uniqueId);
 
 #ifdef ENABLE_PASSTHRU_DECRYPTION
@@ -250,7 +251,7 @@
 }
 
 status_t DrmPassthruPlugIn::onOpenDecryptSession(
-            int uniqueId, DecryptHandle* decryptHandle, const char* uri) {
+            int /*uniqueId*/, DecryptHandle* /*decryptHandle*/, const char* /*uri*/) {
     return DRM_ERROR_CANNOT_HANDLE;
 }
 
@@ -265,14 +266,14 @@
     return DRM_NO_ERROR;
 }
 
-status_t DrmPassthruPlugIn::onInitializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
-            int decryptUnitId, const DrmBuffer* headerInfo) {
+status_t DrmPassthruPlugIn::onInitializeDecryptUnit(int uniqueId, DecryptHandle* /*decryptHandle*/,
+            int /*decryptUnitId*/, const DrmBuffer* /*headerInfo*/) {
     ALOGV("DrmPassthruPlugIn::onInitializeDecryptUnit() : %d", uniqueId);
     return DRM_NO_ERROR;
 }
 
-status_t DrmPassthruPlugIn::onDecrypt(int uniqueId, DecryptHandle* decryptHandle,
-            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV) {
+status_t DrmPassthruPlugIn::onDecrypt(int uniqueId, DecryptHandle* /*decryptHandle*/,
+            int /*decryptUnitId*/, const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* /*IV*/) {
     ALOGV("DrmPassthruPlugIn::onDecrypt() : %d", uniqueId);
     /**
      * As a workaround implementation passthru would copy the given
@@ -293,13 +294,13 @@
 }
 
 status_t DrmPassthruPlugIn::onFinalizeDecryptUnit(
-            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) {
+            int uniqueId, DecryptHandle* /*decryptHandle*/, int /*decryptUnitId*/) {
     ALOGV("DrmPassthruPlugIn::onFinalizeDecryptUnit() : %d", uniqueId);
     return DRM_NO_ERROR;
 }
 
-ssize_t DrmPassthruPlugIn::onPread(int uniqueId, DecryptHandle* decryptHandle,
-            void* buffer, ssize_t numBytes, off64_t offset) {
+ssize_t DrmPassthruPlugIn::onPread(int uniqueId, DecryptHandle* /*decryptHandle*/,
+            void* /*buffer*/, ssize_t /*numBytes*/, off64_t /*offset*/) {
     ALOGV("DrmPassthruPlugIn::onPread() : %d", uniqueId);
     return 0;
 }
diff --git a/drm/libmediadrm/Android.mk b/drm/libmediadrm/Android.mk
index 6a2ed31..5b56501 100644
--- a/drm/libmediadrm/Android.mk
+++ b/drm/libmediadrm/Android.mk
@@ -6,28 +6,54 @@
 
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES:= \
-	Crypto.cpp \
-	Drm.cpp \
-	DrmSessionManager.cpp \
-	SharedLibrary.cpp
+LOCAL_AIDL_INCLUDES := \
+    frameworks/av/drm/libmediadrm/aidl
+
+LOCAL_SRC_FILES := \
+    aidl/android/media/ICas.aidl \
+    aidl/android/media/ICasListener.aidl \
+    aidl/android/media/IDescrambler.aidl \
+    aidl/android/media/IMediaCasService.aidl \
+
+LOCAL_SRC_FILES += \
+    CasImpl.cpp \
+    DescramblerImpl.cpp \
+    DrmPluginPath.cpp \
+    DrmSessionManager.cpp \
+    ICrypto.cpp \
+    IDrm.cpp \
+    IDrmClient.cpp \
+    IMediaDrmService.cpp \
+    MediaCasDefs.cpp \
+    SharedLibrary.cpp
+ifneq ($(DISABLE_TREBLE_DRM), true)
+LOCAL_SRC_FILES += \
+    DrmHal.cpp \
+    CryptoHal.cpp
+else
+LOCAL_SRC_FILES += \
+    Drm.cpp \
+    Crypto.cpp
+endif
 
 LOCAL_SHARED_LIBRARIES := \
-	libbinder \
-	libcrypto \
-	libcutils \
-	libdl \
-	liblog \
-	libmedia \
-	libstagefright \
-	libstagefright_foundation \
-	libutils
-
-LOCAL_C_INCLUDES := \
-    libcore/include
+    libbinder \
+    libcutils \
+    libdl \
+    liblog \
+    libmediautils \
+    libstagefright_foundation \
+    libutils
+ifneq ($(DISABLE_TREBLE_DRM), true)
+LOCAL_SHARED_LIBRARIES += \
+    android.hidl.base@1.0 \
+    android.hardware.drm@1.0 \
+    libhidlbase \
+    libhidlmemory \
+    libhidltransport
+endif
 
 LOCAL_CFLAGS += -Werror -Wno-error=deprecated-declarations -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE:= libmediadrm
 
diff --git a/drm/libmediadrm/CasImpl.cpp b/drm/libmediadrm/CasImpl.cpp
new file mode 100644
index 0000000..1a33bb0
--- /dev/null
+++ b/drm/libmediadrm/CasImpl.cpp
@@ -0,0 +1,224 @@
+
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//#define LOG_NDEBUG 0
+#define LOG_TAG "CasImpl"
+
+#include <android/media/ICasListener.h>
+#include <media/cas/CasAPI.h>
+#include <media/CasImpl.h>
+#include <media/SharedLibrary.h>
+#include <utils/Log.h>
+
+namespace android {
+
+static Status getBinderStatus(status_t err) {
+    if (err == OK) {
+        return Status::ok();
+    }
+    if (err == BAD_VALUE) {
+        return Status::fromExceptionCode(Status::EX_ILLEGAL_ARGUMENT);
+    }
+    if (err == INVALID_OPERATION) {
+        return Status::fromExceptionCode(Status::EX_ILLEGAL_STATE);
+    }
+    return Status::fromServiceSpecificError(err);
+}
+
+static String8 sessionIdToString(const CasSessionId &sessionId) {
+    String8 result;
+    for (size_t i = 0; i < sessionId.size(); i++) {
+        result.appendFormat("%02x ", sessionId[i]);
+    }
+    if (result.isEmpty()) {
+        result.append("(null)");
+    }
+    return result;
+}
+
+struct CasImpl::PluginHolder : public RefBase {
+public:
+    explicit PluginHolder(CasPlugin *plugin) : mPlugin(plugin) {}
+    ~PluginHolder() { if (mPlugin != NULL) delete mPlugin; }
+    CasPlugin* get() { return mPlugin; }
+
+private:
+    CasPlugin *mPlugin;
+    DISALLOW_EVIL_CONSTRUCTORS(PluginHolder);
+};
+
+CasImpl::CasImpl(const sp<ICasListener> &listener)
+    : mPluginHolder(NULL), mListener(listener) {
+    ALOGV("CTOR");
+}
+
+CasImpl::~CasImpl() {
+    ALOGV("DTOR");
+    release();
+}
+
+//static
+void CasImpl::OnEvent(
+        void *appData,
+        int32_t event,
+        int32_t arg,
+        uint8_t *data,
+        size_t size) {
+    if (appData == NULL) {
+        ALOGE("Invalid appData!");
+        return;
+    }
+    CasImpl *casImpl = static_cast<CasImpl *>(appData);
+    casImpl->onEvent(event, arg, data, size);
+}
+
+void CasImpl::init(const sp<SharedLibrary>& library, CasPlugin *plugin) {
+    mLibrary = library;
+    mPluginHolder = new PluginHolder(plugin);
+}
+
+void CasImpl::onEvent(
+        int32_t event, int32_t arg, uint8_t *data, size_t size) {
+    if (mListener == NULL) {
+        return;
+    }
+
+    std::unique_ptr<CasData> eventData;
+    if (data != NULL && size > 0) {
+        eventData.reset(new CasData(data, data + size));
+    }
+
+    mListener->onEvent(event, arg, eventData);
+}
+
+Status CasImpl::setPrivateData(const CasData& pvtData) {
+    ALOGV("setPrivateData");
+    sp<PluginHolder> holder = mPluginHolder;
+    if (holder == NULL) {
+        return getBinderStatus(INVALID_OPERATION);
+    }
+    return getBinderStatus(holder->get()->setPrivateData(pvtData));
+}
+
+Status CasImpl::openSession(CasSessionId* sessionId) {
+    ALOGV("openSession");
+    sp<PluginHolder> holder = mPluginHolder;
+    if (holder == NULL) {
+        return getBinderStatus(INVALID_OPERATION);
+    }
+    status_t err = holder->get()->openSession(sessionId);
+
+    ALOGV("openSession: session opened, sessionId=%s",
+            sessionIdToString(*sessionId).string());
+
+    return getBinderStatus(err);
+}
+
+Status CasImpl::setSessionPrivateData(
+        const CasSessionId &sessionId, const CasData& pvtData) {
+    ALOGV("setSessionPrivateData: sessionId=%s",
+            sessionIdToString(sessionId).string());
+    sp<PluginHolder> holder = mPluginHolder;
+    if (holder == NULL) {
+        return getBinderStatus(INVALID_OPERATION);
+    }
+    return getBinderStatus(holder->get()->setSessionPrivateData(sessionId, pvtData));
+}
+
+Status CasImpl::closeSession(const CasSessionId &sessionId) {
+    ALOGV("closeSession: sessionId=%s",
+            sessionIdToString(sessionId).string());
+    sp<PluginHolder> holder = mPluginHolder;
+    if (holder == NULL) {
+        return getBinderStatus(INVALID_OPERATION);
+    }
+    return getBinderStatus(holder->get()->closeSession(sessionId));
+}
+
+Status CasImpl::processEcm(const CasSessionId &sessionId, const ParcelableCasData& ecm) {
+    ALOGV("processEcm: sessionId=%s",
+            sessionIdToString(sessionId).string());
+    sp<PluginHolder> holder = mPluginHolder;
+    if (holder == NULL) {
+        return getBinderStatus(INVALID_OPERATION);
+    }
+
+    return getBinderStatus(holder->get()->processEcm(sessionId, ecm));
+}
+
+Status CasImpl::processEmm(const ParcelableCasData& emm) {
+    ALOGV("processEmm");
+    sp<PluginHolder> holder = mPluginHolder;
+    if (holder == NULL) {
+        return getBinderStatus(INVALID_OPERATION);
+    }
+
+    return getBinderStatus(holder->get()->processEmm(emm));
+}
+
+Status CasImpl::sendEvent(
+        int32_t event, int32_t arg, const ::std::unique_ptr<CasData> &eventData) {
+    ALOGV("sendEvent");
+    sp<PluginHolder> holder = mPluginHolder;
+    if (holder == NULL) {
+        return getBinderStatus(INVALID_OPERATION);
+    }
+
+    status_t err;
+    if (eventData == nullptr) {
+        err = holder->get()->sendEvent(event, arg, CasData());
+    } else {
+        err = holder->get()->sendEvent(event, arg, *eventData);
+    }
+    return getBinderStatus(err);
+}
+
+Status CasImpl::provision(const String16& provisionString) {
+    ALOGV("provision: provisionString=%s", String8(provisionString).string());
+    sp<PluginHolder> holder = mPluginHolder;
+    if (holder == NULL) {
+        return getBinderStatus(INVALID_OPERATION);
+    }
+
+    return getBinderStatus(holder->get()->provision(String8(provisionString)));
+}
+
+Status CasImpl::refreshEntitlements(
+        int32_t refreshType, const ::std::unique_ptr<CasData> &refreshData) {
+    ALOGV("refreshEntitlements");
+    sp<PluginHolder> holder = mPluginHolder;
+    if (holder == NULL) {
+        return getBinderStatus(INVALID_OPERATION);
+    }
+
+    status_t err;
+    if (refreshData == nullptr) {
+        err = holder->get()->refreshEntitlements(refreshType, CasData());
+    } else {
+        err = holder->get()->refreshEntitlements(refreshType, *refreshData);
+    }
+    return getBinderStatus(err);
+}
+
+Status CasImpl::release() {
+    ALOGV("release: plugin=%p",
+            mPluginHolder == NULL ? mPluginHolder->get() : NULL);
+    mPluginHolder.clear();
+    return Status::ok();
+}
+
+} // namespace android
+
diff --git a/drm/libmediadrm/Crypto.cpp b/drm/libmediadrm/Crypto.cpp
index 79633cb..a5d7346 100644
--- a/drm/libmediadrm/Crypto.cpp
+++ b/drm/libmediadrm/Crypto.cpp
@@ -22,6 +22,7 @@
 
 #include <binder/IMemory.h>
 #include <media/Crypto.h>
+#include <media/DrmPluginPath.h>
 #include <media/hardware/CryptoAPI.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AString.h>
@@ -102,7 +103,7 @@
     }
 
     // no luck, have to search
-    String8 dirPath("/vendor/lib/mediadrm");
+    String8 dirPath(getDrmPluginPath());
     String8 pluginPath;
 
     DIR* pDir = opendir(dirPath.string());
@@ -233,16 +234,12 @@
     return mPlugin->requiresSecureDecoderComponent(mime);
 }
 
-ssize_t Crypto::decrypt(
-        DestinationType dstType,
-        const uint8_t key[16],
-        const uint8_t iv[16],
-        CryptoPlugin::Mode mode,
-        const CryptoPlugin::Pattern &pattern,
-        const sp<IMemory> &sharedBuffer, size_t offset,
+ssize_t Crypto::decrypt(const uint8_t key[16], const uint8_t iv[16],
+        CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+        const sp<IMemory> &source, size_t offset,
         const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
-        void *dstPtr,
-        AString *errorDetailMsg) {
+        const ICrypto::DestinationBuffer &destination, AString *errorDetailMsg) {
+
     Mutex::Autolock autoLock(mLock);
 
     if (mInitCheck != OK) {
@@ -253,12 +250,21 @@
         return -EINVAL;
     }
 
-    const void *srcPtr = static_cast<uint8_t *>(sharedBuffer->pointer()) + offset;
+    const void *srcPtr = static_cast<uint8_t *>(source->pointer()) + offset;
 
-    return mPlugin->decrypt(
-            dstType != kDestinationTypeVmPointer,
-            key, iv, mode, pattern, srcPtr, subSamples, numSubSamples, dstPtr,
-            errorDetailMsg);
+    void *destPtr;
+    bool secure = false;
+    if (destination.mType == kDestinationTypeNativeHandle) {
+        destPtr = static_cast<void *>(destination.mHandle);
+        secure = true;
+    } else {
+        destPtr = destination.mSharedMemory->pointer();
+    }
+
+    ssize_t result = mPlugin->decrypt(secure, key, iv, mode, pattern, srcPtr, subSamples,
+            numSubSamples, destPtr, errorDetailMsg);
+
+    return result;
 }
 
 void Crypto::notifyResolution(uint32_t width, uint32_t height) {
diff --git a/drm/libmediadrm/CryptoHal.cpp b/drm/libmediadrm/CryptoHal.cpp
new file mode 100644
index 0000000..d613a5b
--- /dev/null
+++ b/drm/libmediadrm/CryptoHal.cpp
@@ -0,0 +1,390 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "CryptoHal"
+#include <utils/Log.h>
+
+#include <android/hardware/drm/1.0/types.h>
+#include <android/hidl/manager/1.0/IServiceManager.h>
+
+#include <binder/IMemory.h>
+#include <cutils/native_handle.h>
+#include <media/CryptoHal.h>
+#include <media/hardware/CryptoAPI.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/foundation/hexdump.h>
+#include <media/stagefright/MediaErrors.h>
+
+using ::android::hardware::drm::V1_0::BufferType;
+using ::android::hardware::drm::V1_0::DestinationBuffer;
+using ::android::hardware::drm::V1_0::ICryptoFactory;
+using ::android::hardware::drm::V1_0::ICryptoPlugin;
+using ::android::hardware::drm::V1_0::Mode;
+using ::android::hardware::drm::V1_0::Pattern;
+using ::android::hardware::drm::V1_0::SharedBuffer;
+using ::android::hardware::drm::V1_0::Status;
+using ::android::hardware::drm::V1_0::SubSample;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hidl::manager::V1_0::IServiceManager;
+using ::android::sp;
+
+
+namespace android {
+
+static status_t toStatusT(Status status) {
+    switch (status) {
+    case Status::OK:
+        return OK;
+    case Status::ERROR_DRM_NO_LICENSE:
+        return ERROR_DRM_NO_LICENSE;
+    case Status::ERROR_DRM_LICENSE_EXPIRED:
+        return ERROR_DRM_LICENSE_EXPIRED;
+    case Status::ERROR_DRM_RESOURCE_BUSY:
+        return ERROR_DRM_RESOURCE_BUSY;
+    case Status::ERROR_DRM_INSUFFICIENT_OUTPUT_PROTECTION:
+        return ERROR_DRM_INSUFFICIENT_OUTPUT_PROTECTION;
+    case Status::ERROR_DRM_SESSION_NOT_OPENED:
+        return ERROR_DRM_SESSION_NOT_OPENED;
+    case Status::ERROR_DRM_CANNOT_HANDLE:
+        return ERROR_DRM_CANNOT_HANDLE;
+    case Status::ERROR_DRM_DECRYPT:
+        return ERROR_DRM_DECRYPT;
+    default:
+        return UNKNOWN_ERROR;
+    }
+}
+
+
+static hidl_vec<uint8_t> toHidlVec(const Vector<uint8_t> &vector) {
+    hidl_vec<uint8_t> vec;
+    vec.setToExternal(const_cast<uint8_t *>(vector.array()), vector.size());
+    return vec;
+}
+
+static hidl_vec<uint8_t> toHidlVec(const void *ptr, size_t size) {
+    hidl_vec<uint8_t> vec;
+    vec.resize(size);
+    memcpy(vec.data(), ptr, size);
+    return vec;
+}
+
+static hidl_array<uint8_t, 16> toHidlArray16(const uint8_t *ptr) {
+    if (!ptr) {
+        return hidl_array<uint8_t, 16>();
+    }
+    return hidl_array<uint8_t, 16>(ptr);
+}
+
+
+static String8 toString8(hidl_string hString) {
+    return String8(hString.c_str());
+}
+
+
+CryptoHal::CryptoHal()
+    : mFactories(makeCryptoFactories()),
+      mInitCheck((mFactories.size() == 0) ? ERROR_UNSUPPORTED : NO_INIT),
+      mNextBufferId(0),
+      mHeapSeqNum(0) {
+}
+
+CryptoHal::~CryptoHal() {
+}
+
+Vector<sp<ICryptoFactory>> CryptoHal::makeCryptoFactories() {
+    Vector<sp<ICryptoFactory>> factories;
+
+    auto manager = ::IServiceManager::getService();
+    if (manager != NULL) {
+        manager->listByInterface(ICryptoFactory::descriptor,
+                [&factories](const hidl_vec<hidl_string> &registered) {
+                    for (const auto &instance : registered) {
+                        auto factory = ICryptoFactory::getService(instance);
+                        if (factory != NULL) {
+                            factories.push_back(factory);
+                            ALOGI("makeCryptoFactories: factory instance %s is %s",
+                                    instance.c_str(),
+                                    factory->isRemote() ? "Remote" : "Not Remote");
+                        }
+                    }
+                }
+            );
+    }
+
+    if (factories.size() == 0) {
+        // must be in passthrough mode, load the default passthrough service
+        auto passthrough = ICryptoFactory::getService();
+        if (passthrough != NULL) {
+            ALOGI("makeCryptoFactories: using default crypto instance");
+            factories.push_back(passthrough);
+        } else {
+            ALOGE("Failed to find any crypto factories");
+        }
+    }
+    return factories;
+}
+
+sp<ICryptoPlugin> CryptoHal::makeCryptoPlugin(const sp<ICryptoFactory>& factory,
+        const uint8_t uuid[16], const void *initData, size_t initDataSize) {
+
+    sp<ICryptoPlugin> plugin;
+    Return<void> hResult = factory->createPlugin(toHidlArray16(uuid),
+            toHidlVec(initData, initDataSize),
+            [&](Status status, const sp<ICryptoPlugin>& hPlugin) {
+                if (status != Status::OK) {
+                    ALOGE("Failed to make crypto plugin");
+                    return;
+                }
+                plugin = hPlugin;
+            }
+        );
+    return plugin;
+}
+
+
+status_t CryptoHal::initCheck() const {
+    return mInitCheck;
+}
+
+
+bool CryptoHal::isCryptoSchemeSupported(const uint8_t uuid[16]) {
+    Mutex::Autolock autoLock(mLock);
+
+    for (size_t i = 0; i < mFactories.size(); i++) {
+        if (mFactories[i]->isCryptoSchemeSupported(uuid)) {
+            return true;
+        }
+    }
+    return false;
+}
+
+status_t CryptoHal::createPlugin(const uint8_t uuid[16], const void *data,
+        size_t size) {
+    Mutex::Autolock autoLock(mLock);
+
+    for (size_t i = 0; i < mFactories.size(); i++) {
+        if (mFactories[i]->isCryptoSchemeSupported(uuid)) {
+            mPlugin = makeCryptoPlugin(mFactories[i], uuid, data, size);
+        }
+    }
+
+    if (mPlugin == NULL) {
+        mInitCheck = ERROR_UNSUPPORTED;
+    } else {
+        mInitCheck = OK;
+    }
+
+    return mInitCheck;
+}
+
+status_t CryptoHal::destroyPlugin() {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    mPlugin.clear();
+    return OK;
+}
+
+bool CryptoHal::requiresSecureDecoderComponent(const char *mime) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    return mPlugin->requiresSecureDecoderComponent(hidl_string(mime));
+}
+
+
+/**
+ * If the heap base isn't set, get the heap base from the IMemory
+ * and send it to the HAL so it can map a remote heap of the same
+ * size.  Once the heap base is established, shared memory buffers
+ * are sent by providing an offset into the heap and a buffer size.
+ */
+int32_t CryptoHal::setHeapBase(const sp<IMemoryHeap>& heap) {
+    if (heap == NULL) {
+        ALOGE("setHeapBase(): heap is NULL");
+        return -1;
+    }
+    native_handle_t* nativeHandle = native_handle_create(1, 0);
+    if (!nativeHandle) {
+        ALOGE("setHeapBase(), failed to create native handle");
+        return -1;
+    }
+
+    Mutex::Autolock autoLock(mLock);
+
+    int32_t seqNum = mHeapSeqNum++;
+    int fd = heap->getHeapID();
+    nativeHandle->data[0] = fd;
+    auto hidlHandle = hidl_handle(nativeHandle);
+    auto hidlMemory = hidl_memory("ashmem", hidlHandle, heap->getSize());
+    mHeapBases.add(seqNum, mNextBufferId);
+    Return<void> hResult = mPlugin->setSharedBufferBase(hidlMemory, mNextBufferId++);
+    ALOGE_IF(!hResult.isOk(), "setSharedBufferBase(): remote call failed");
+    return seqNum;
+}
+
+void CryptoHal::clearHeapBase(int32_t seqNum) {
+    Mutex::Autolock autoLock(mLock);
+
+    mHeapBases.removeItem(seqNum);
+}
+
+status_t CryptoHal::toSharedBuffer(const sp<IMemory>& memory, int32_t seqNum, ::SharedBuffer* buffer) {
+    ssize_t offset;
+    size_t size;
+
+    if (memory == NULL && buffer == NULL) {
+        return UNEXPECTED_NULL;
+    }
+
+    sp<IMemoryHeap> heap = memory->getMemory(&offset, &size);
+    if (heap == NULL) {
+        return UNEXPECTED_NULL;
+    }
+
+    // memory must be in the declared heap
+    CHECK(mHeapBases.indexOfKey(seqNum) >= 0);
+
+    buffer->bufferId = mHeapBases.valueFor(seqNum);
+    buffer->offset = offset >= 0 ? offset : 0;
+    buffer->size = size;
+    return OK;
+}
+
+ssize_t CryptoHal::decrypt(const uint8_t keyId[16], const uint8_t iv[16],
+        CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+        const ICrypto::SourceBuffer &source, size_t offset,
+        const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+        const ICrypto::DestinationBuffer &destination, AString *errorDetailMsg) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    Mode hMode;
+    switch(mode) {
+    case CryptoPlugin::kMode_Unencrypted:
+        hMode = Mode::UNENCRYPTED ;
+        break;
+    case CryptoPlugin::kMode_AES_CTR:
+        hMode = Mode::AES_CTR;
+        break;
+    case CryptoPlugin::kMode_AES_WV:
+        hMode = Mode::AES_CBC_CTS;
+        break;
+    case CryptoPlugin::kMode_AES_CBC:
+        hMode = Mode::AES_CBC;
+        break;
+    default:
+        return UNKNOWN_ERROR;
+    }
+
+    Pattern hPattern;
+    hPattern.encryptBlocks = pattern.mEncryptBlocks;
+    hPattern.skipBlocks = pattern.mSkipBlocks;
+
+    std::vector<SubSample> stdSubSamples;
+    for (size_t i = 0; i < numSubSamples; i++) {
+        SubSample subSample;
+        subSample.numBytesOfClearData = subSamples[i].mNumBytesOfClearData;
+        subSample.numBytesOfEncryptedData = subSamples[i].mNumBytesOfEncryptedData;
+        stdSubSamples.push_back(subSample);
+    }
+    auto hSubSamples = hidl_vec<SubSample>(stdSubSamples);
+
+    int32_t heapSeqNum = source.mHeapSeqNum;
+    bool secure;
+    ::DestinationBuffer hDestination;
+    if (destination.mType == kDestinationTypeSharedMemory) {
+        hDestination.type = BufferType::SHARED_MEMORY;
+        status_t status = toSharedBuffer(destination.mSharedMemory, heapSeqNum,
+                &hDestination.nonsecureMemory);
+        if (status != OK) {
+            return status;
+        }
+        secure = false;
+    } else {
+        hDestination.type = BufferType::NATIVE_HANDLE;
+        hDestination.secureMemory = hidl_handle(destination.mHandle);
+        secure = true;
+    }
+
+    ::SharedBuffer hSource;
+    status_t status = toSharedBuffer(source.mSharedMemory, heapSeqNum, &hSource);
+    if (status != OK) {
+        return status;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+    uint32_t bytesWritten = 0;
+
+    Return<void> hResult = mPlugin->decrypt(secure, toHidlArray16(keyId), toHidlArray16(iv), hMode,
+            hPattern, hSubSamples, hSource, offset, hDestination,
+            [&](Status status, uint32_t hBytesWritten, hidl_string hDetailedError) {
+                if (status == Status::OK) {
+                    bytesWritten = hBytesWritten;
+                    *errorDetailMsg = toString8(hDetailedError);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    if (!hResult.isOk()) {
+        err = DEAD_OBJECT;
+    }
+
+    if (err == OK) {
+        return bytesWritten;
+    }
+    return err;
+}
+
+void CryptoHal::notifyResolution(uint32_t width, uint32_t height) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return;
+    }
+
+    mPlugin->notifyResolution(width, height);
+}
+
+status_t CryptoHal::setMediaDrmSession(const Vector<uint8_t> &sessionId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    return toStatusT(mPlugin->setMediaDrmSession(toHidlVec(sessionId)));
+}
+
+}  // namespace android
diff --git a/drm/libmediadrm/DescramblerImpl.cpp b/drm/libmediadrm/DescramblerImpl.cpp
new file mode 100644
index 0000000..94e09e2
--- /dev/null
+++ b/drm/libmediadrm/DescramblerImpl.cpp
@@ -0,0 +1,107 @@
+
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//#define LOG_NDEBUG 0
+#define LOG_TAG "DescramblerImpl"
+
+#include <media/cas/DescramblerAPI.h>
+#include <media/DescramblerImpl.h>
+#include <media/SharedLibrary.h>
+#include <utils/Log.h>
+#include <binder/IMemory.h>
+
+namespace android {
+
+static Status getBinderStatus(status_t err) {
+    if (err == OK) {
+        return Status::ok();
+    }
+    if (err == BAD_VALUE) {
+        return Status::fromExceptionCode(Status::EX_ILLEGAL_ARGUMENT);
+    }
+    if (err == INVALID_OPERATION) {
+        return Status::fromExceptionCode(Status::EX_ILLEGAL_STATE);
+    }
+    return Status::fromServiceSpecificError(err);
+}
+
+static String8 sessionIdToString(const CasSessionId &sessionId) {
+    String8 result;
+    for (size_t i = 0; i < sessionId.size(); i++) {
+        result.appendFormat("%02x ", sessionId[i]);
+    }
+    if (result.isEmpty()) {
+        result.append("(null)");
+    }
+    return result;
+}
+
+DescramblerImpl::DescramblerImpl(
+        const sp<SharedLibrary>& library, DescramblerPlugin *plugin) :
+        mLibrary(library), mPlugin(plugin) {
+    ALOGV("CTOR: mPlugin=%p", mPlugin);
+}
+
+DescramblerImpl::~DescramblerImpl() {
+    ALOGV("DTOR: mPlugin=%p", mPlugin);
+    release();
+}
+
+Status DescramblerImpl::setMediaCasSession(const CasSessionId& sessionId) {
+    ALOGV("setMediaCasSession: sessionId=%s",
+            sessionIdToString(sessionId).string());
+
+    return getBinderStatus(mPlugin->setMediaCasSession(sessionId));
+}
+
+Status DescramblerImpl::requiresSecureDecoderComponent(
+        const String16& mime, bool *result) {
+    *result = mPlugin->requiresSecureDecoderComponent(String8(mime));
+
+    return getBinderStatus(OK);
+}
+
+Status DescramblerImpl::descramble(
+        const DescrambleInfo& info, int32_t *result) {
+    ALOGV("descramble");
+
+    *result = mPlugin->descramble(
+            info.dstType != DescrambleInfo::kDestinationTypeVmPointer,
+            info.scramblingControl,
+            info.numSubSamples,
+            info.subSamples,
+            info.srcMem->pointer(),
+            info.srcOffset,
+            info.dstType == DescrambleInfo::kDestinationTypeVmPointer ?
+                    info.srcMem->pointer() : info.dstPtr,
+            info.dstOffset,
+            NULL);
+
+    return getBinderStatus(*result >= 0 ? OK : *result);
+}
+
+Status DescramblerImpl::release() {
+    ALOGV("release: mPlugin=%p", mPlugin);
+
+    if (mPlugin != NULL) {
+        delete mPlugin;
+        mPlugin = NULL;
+    }
+    return Status::ok();
+}
+
+} // namespace android
+
diff --git a/drm/libmediadrm/Drm.cpp b/drm/libmediadrm/Drm.cpp
index 7c1f5c8..1004eb8 100644
--- a/drm/libmediadrm/Drm.cpp
+++ b/drm/libmediadrm/Drm.cpp
@@ -21,6 +21,7 @@
 #include <dirent.h>
 #include <dlfcn.h>
 
+#include <media/DrmPluginPath.h>
 #include <media/DrmSessionClientInterface.h>
 #include <media/DrmSessionManager.h>
 #include <media/Drm.h>
@@ -61,7 +62,7 @@
 }
 
 struct DrmSessionClient : public DrmSessionClientInterface {
-    DrmSessionClient(Drm* drm) : mDrm(drm) {}
+    explicit DrmSessionClient(Drm* drm) : mDrm(drm) {}
 
     virtual bool reclaimSession(const Vector<uint8_t>& sessionId) {
         sp<Drm> drm = mDrm.promote();
@@ -220,7 +221,7 @@
     }
 
     // no luck, have to search
-    String8 dirPath("/vendor/lib/mediadrm");
+    String8 dirPath(getDrmPluginPath());
     DIR* pDir = opendir(dirPath.string());
 
     if (pDir == NULL) {
@@ -303,7 +304,8 @@
     return true;
 }
 
-status_t Drm::createPlugin(const uint8_t uuid[16]) {
+status_t Drm::createPlugin(const uint8_t uuid[16],
+                           const String8& /* appPackageName */) {
     Mutex::Autolock autoLock(mLock);
 
     if (mPlugin != NULL) {
@@ -319,7 +321,12 @@
     }
 
     status_t result = mFactory->createDrmPlugin(uuid, &mPlugin);
-    mPlugin->setListener(this);
+    if (mPlugin) {
+        mPlugin->setListener(this);
+    } else {
+        ALOGE("Failed to create plugin");
+        return UNEXPECTED_NULL;
+    }
     return result;
 }
 
@@ -334,6 +341,7 @@
         return -EINVAL;
     }
 
+    setListener(NULL);
     delete mPlugin;
     mPlugin = NULL;
 
diff --git a/drm/libmediadrm/DrmHal.cpp b/drm/libmediadrm/DrmHal.cpp
new file mode 100644
index 0000000..386546f
--- /dev/null
+++ b/drm/libmediadrm/DrmHal.cpp
@@ -0,0 +1,983 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "DrmHal"
+#include <utils/Log.h>
+
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+
+#include <android/hardware/drm/1.0/IDrmFactory.h>
+#include <android/hardware/drm/1.0/IDrmPlugin.h>
+#include <android/hardware/drm/1.0/types.h>
+#include <android/hidl/manager/1.0/IServiceManager.h>
+#include <hidl/ServiceManagement.h>
+
+#include <media/DrmHal.h>
+#include <media/DrmSessionClientInterface.h>
+#include <media/DrmSessionManager.h>
+#include <media/drm/DrmAPI.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/foundation/hexdump.h>
+#include <media/stagefright/MediaErrors.h>
+
+using ::android::hardware::drm::V1_0::EventType;
+using ::android::hardware::drm::V1_0::IDrmFactory;
+using ::android::hardware::drm::V1_0::IDrmPlugin;
+using ::android::hardware::drm::V1_0::KeyedVector;
+using ::android::hardware::drm::V1_0::KeyRequestType;
+using ::android::hardware::drm::V1_0::KeyStatus;
+using ::android::hardware::drm::V1_0::KeyStatusType;
+using ::android::hardware::drm::V1_0::KeyType;
+using ::android::hardware::drm::V1_0::KeyValue;
+using ::android::hardware::drm::V1_0::SecureStop;
+using ::android::hardware::drm::V1_0::Status;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hidl::manager::V1_0::IServiceManager;
+using ::android::sp;
+
+namespace android {
+
+static inline int getCallingPid() {
+    return IPCThreadState::self()->getCallingPid();
+}
+
+static bool checkPermission(const char* permissionString) {
+    if (getpid() == IPCThreadState::self()->getCallingPid()) return true;
+    bool ok = checkCallingPermission(String16(permissionString));
+    if (!ok) ALOGE("Request requires %s", permissionString);
+    return ok;
+}
+
+static const Vector<uint8_t> toVector(const hidl_vec<uint8_t> &vec) {
+    Vector<uint8_t> vector;
+    vector.appendArray(vec.data(), vec.size());
+    return *const_cast<const Vector<uint8_t> *>(&vector);
+}
+
+static hidl_vec<uint8_t> toHidlVec(const Vector<uint8_t> &vector) {
+    hidl_vec<uint8_t> vec;
+    vec.setToExternal(const_cast<uint8_t *>(vector.array()), vector.size());
+    return vec;
+}
+
+static String8 toString8(const hidl_string &string) {
+    return String8(string.c_str());
+}
+
+static hidl_string toHidlString(const String8& string) {
+    return hidl_string(string.string());
+}
+
+
+static ::KeyedVector toHidlKeyedVector(const KeyedVector<String8, String8>&
+        keyedVector) {
+    std::vector<KeyValue> stdKeyedVector;
+    for (size_t i = 0; i < keyedVector.size(); i++) {
+        KeyValue keyValue;
+        keyValue.key = toHidlString(keyedVector.keyAt(i));
+        keyValue.value = toHidlString(keyedVector.valueAt(i));
+        stdKeyedVector.push_back(keyValue);
+    }
+    return ::KeyedVector(stdKeyedVector);
+}
+
+static KeyedVector<String8, String8> toKeyedVector(const ::KeyedVector&
+        hKeyedVector) {
+    KeyedVector<String8, String8> keyedVector;
+    for (size_t i = 0; i < hKeyedVector.size(); i++) {
+        keyedVector.add(toString8(hKeyedVector[i].key),
+                toString8(hKeyedVector[i].value));
+    }
+    return keyedVector;
+}
+
+static List<Vector<uint8_t>> toSecureStops(const hidl_vec<SecureStop>&
+        hSecureStops) {
+    List<Vector<uint8_t>> secureStops;
+    for (size_t i = 0; i < hSecureStops.size(); i++) {
+        secureStops.push_back(toVector(hSecureStops[i].opaqueData));
+    }
+    return secureStops;
+}
+
+static status_t toStatusT(Status status) {
+    switch (status) {
+    case Status::OK:
+        return OK;
+        break;
+    case Status::ERROR_DRM_NO_LICENSE:
+        return ERROR_DRM_NO_LICENSE;
+        break;
+    case Status::ERROR_DRM_LICENSE_EXPIRED:
+        return ERROR_DRM_LICENSE_EXPIRED;
+        break;
+    case Status::ERROR_DRM_SESSION_NOT_OPENED:
+        return ERROR_DRM_SESSION_NOT_OPENED;
+        break;
+    case Status::ERROR_DRM_CANNOT_HANDLE:
+        return ERROR_DRM_CANNOT_HANDLE;
+        break;
+    case Status::ERROR_DRM_INVALID_STATE:
+        return ERROR_DRM_TAMPER_DETECTED;
+        break;
+    case Status::BAD_VALUE:
+        return BAD_VALUE;
+        break;
+    case Status::ERROR_DRM_NOT_PROVISIONED:
+        return ERROR_DRM_NOT_PROVISIONED;
+        break;
+    case Status::ERROR_DRM_RESOURCE_BUSY:
+        return ERROR_DRM_RESOURCE_BUSY;
+        break;
+    case Status::ERROR_DRM_DEVICE_REVOKED:
+        return ERROR_DRM_DEVICE_REVOKED;
+        break;
+    case Status::ERROR_DRM_UNKNOWN:
+    default:
+        return ERROR_DRM_UNKNOWN;
+        break;
+    }
+}
+
+
+Mutex DrmHal::mLock;
+
+struct DrmSessionClient : public DrmSessionClientInterface {
+    explicit DrmSessionClient(DrmHal* drm) : mDrm(drm) {}
+
+    virtual bool reclaimSession(const Vector<uint8_t>& sessionId) {
+        sp<DrmHal> drm = mDrm.promote();
+        if (drm == NULL) {
+            return true;
+        }
+        status_t err = drm->closeSession(sessionId);
+        if (err != OK) {
+            return false;
+        }
+        drm->sendEvent(EventType::SESSION_RECLAIMED,
+                toHidlVec(sessionId), hidl_vec<uint8_t>());
+        return true;
+    }
+
+protected:
+    virtual ~DrmSessionClient() {}
+
+private:
+    wp<DrmHal> mDrm;
+
+    DISALLOW_EVIL_CONSTRUCTORS(DrmSessionClient);
+};
+
+DrmHal::DrmHal()
+   : mDrmSessionClient(new DrmSessionClient(this)),
+     mFactories(makeDrmFactories()),
+     mInitCheck((mFactories.size() == 0) ? ERROR_UNSUPPORTED : NO_INIT) {
+}
+
+DrmHal::~DrmHal() {
+    DrmSessionManager::Instance()->removeDrm(mDrmSessionClient);
+}
+
+Vector<sp<IDrmFactory>> DrmHal::makeDrmFactories() {
+    Vector<sp<IDrmFactory>> factories;
+
+    auto manager = hardware::defaultServiceManager();
+
+    if (manager != NULL) {
+        manager->listByInterface(IDrmFactory::descriptor,
+                [&factories](const hidl_vec<hidl_string> &registered) {
+                    for (const auto &instance : registered) {
+                        auto factory = IDrmFactory::getService(instance);
+                        if (factory != NULL) {
+                            factories.push_back(factory);
+                            ALOGI("makeDrmFactories: factory instance %s is %s",
+                                    instance.c_str(),
+                                    factory->isRemote() ? "Remote" : "Not Remote");
+                        }
+                    }
+                }
+            );
+    }
+
+    if (factories.size() == 0) {
+        // must be in passthrough mode, load the default passthrough service
+        auto passthrough = IDrmFactory::getService();
+        if (passthrough != NULL) {
+            ALOGI("makeDrmFactories: using default drm instance");
+            factories.push_back(passthrough);
+        } else {
+            ALOGE("Failed to find any drm factories");
+        }
+    }
+    return factories;
+}
+
+sp<IDrmPlugin> DrmHal::makeDrmPlugin(const sp<IDrmFactory>& factory,
+        const uint8_t uuid[16], const String8& appPackageName) {
+
+    sp<IDrmPlugin> plugin;
+    Return<void> hResult = factory->createPlugin(uuid, appPackageName.string(),
+            [&](Status status, const sp<IDrmPlugin>& hPlugin) {
+                if (status != Status::OK) {
+                    ALOGE("Failed to make drm plugin");
+                    return;
+                }
+                plugin = hPlugin;
+            }
+        );
+    return plugin;
+}
+
+status_t DrmHal::initCheck() const {
+    return mInitCheck;
+}
+
+status_t DrmHal::setListener(const sp<IDrmClient>& listener)
+{
+    Mutex::Autolock lock(mEventLock);
+    if (mListener != NULL){
+        IInterface::asBinder(mListener)->unlinkToDeath(this);
+    }
+    if (listener != NULL) {
+        IInterface::asBinder(listener)->linkToDeath(this);
+    }
+    mListener = listener;
+    return NO_ERROR;
+}
+
+Return<void> DrmHal::sendEvent(EventType hEventType,
+        const hidl_vec<uint8_t>& sessionId, const hidl_vec<uint8_t>& data) {
+
+    mEventLock.lock();
+    sp<IDrmClient> listener = mListener;
+    mEventLock.unlock();
+
+    if (listener != NULL) {
+        Parcel obj;
+        writeByteArray(obj, sessionId);
+        writeByteArray(obj, data);
+
+        Mutex::Autolock lock(mNotifyLock);
+        DrmPlugin::EventType eventType;
+        switch(hEventType) {
+        case EventType::PROVISION_REQUIRED:
+            eventType = DrmPlugin::kDrmPluginEventProvisionRequired;
+            break;
+        case EventType::KEY_NEEDED:
+            eventType = DrmPlugin::kDrmPluginEventKeyNeeded;
+            break;
+        case EventType::KEY_EXPIRED:
+            eventType = DrmPlugin::kDrmPluginEventKeyExpired;
+            break;
+        case EventType::VENDOR_DEFINED:
+            eventType = DrmPlugin::kDrmPluginEventVendorDefined;
+            break;
+        case EventType::SESSION_RECLAIMED:
+            eventType = DrmPlugin::kDrmPluginEventSessionReclaimed;
+            break;
+        default:
+            return Void();
+        }
+        listener->notify(eventType, 0, &obj);
+    }
+    return Void();
+}
+
+Return<void> DrmHal::sendExpirationUpdate(const hidl_vec<uint8_t>& sessionId,
+        int64_t expiryTimeInMS) {
+
+    mEventLock.lock();
+    sp<IDrmClient> listener = mListener;
+    mEventLock.unlock();
+
+    if (listener != NULL) {
+        Parcel obj;
+        writeByteArray(obj, sessionId);
+        obj.writeInt64(expiryTimeInMS);
+
+        Mutex::Autolock lock(mNotifyLock);
+        listener->notify(DrmPlugin::kDrmPluginEventExpirationUpdate, 0, &obj);
+    }
+    return Void();
+}
+
+Return<void> DrmHal::sendKeysChange(const hidl_vec<uint8_t>& sessionId,
+        const hidl_vec<KeyStatus>& keyStatusList, bool hasNewUsableKey) {
+
+    mEventLock.lock();
+    sp<IDrmClient> listener = mListener;
+    mEventLock.unlock();
+
+    if (listener != NULL) {
+        Parcel obj;
+        writeByteArray(obj, sessionId);
+
+        size_t nKeys = keyStatusList.size();
+        obj.writeInt32(nKeys);
+        for (size_t i = 0; i < nKeys; ++i) {
+            const KeyStatus &keyStatus = keyStatusList[i];
+            writeByteArray(obj, keyStatus.keyId);
+            uint32_t type;
+            switch(keyStatus.type) {
+            case KeyStatusType::USABLE:
+                type = DrmPlugin::kKeyStatusType_Usable;
+                break;
+            case KeyStatusType::EXPIRED:
+                type = DrmPlugin::kKeyStatusType_Expired;
+                break;
+            case KeyStatusType::OUTPUTNOTALLOWED:
+                type = DrmPlugin::kKeyStatusType_OutputNotAllowed;
+                break;
+            case KeyStatusType::STATUSPENDING:
+                type = DrmPlugin::kKeyStatusType_StatusPending;
+                break;
+            case KeyStatusType::INTERNALERROR:
+            default:
+                type = DrmPlugin::kKeyStatusType_InternalError;
+                break;
+            }
+            obj.writeInt32(type);
+        }
+        obj.writeInt32(hasNewUsableKey);
+
+        Mutex::Autolock lock(mNotifyLock);
+        listener->notify(DrmPlugin::kDrmPluginEventKeysChange, 0, &obj);
+    }
+    return Void();
+}
+
+bool DrmHal::isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType) {
+    Mutex::Autolock autoLock(mLock);
+
+    for (size_t i = 0; i < mFactories.size(); i++) {
+        if (mFactories[i]->isCryptoSchemeSupported(uuid)) {
+            if (mimeType != "") {
+                if (mFactories[i]->isContentTypeSupported(mimeType.string())) {
+                    return true;
+                }
+            } else {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+status_t DrmHal::createPlugin(const uint8_t uuid[16],
+        const String8& appPackageName) {
+    Mutex::Autolock autoLock(mLock);
+
+    for (size_t i = 0; i < mFactories.size(); i++) {
+        if (mFactories[i]->isCryptoSchemeSupported(uuid)) {
+            mPlugin = makeDrmPlugin(mFactories[i], uuid, appPackageName);
+        }
+    }
+
+    if (mPlugin == NULL) {
+        mInitCheck = ERROR_UNSUPPORTED;
+    } else {
+        mInitCheck = OK;
+        mPlugin->setListener(this);
+    }
+
+    return mInitCheck;
+}
+
+status_t DrmHal::destroyPlugin() {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    setListener(NULL);
+    if (mPlugin != NULL) {
+        mPlugin->setListener(NULL);
+    }
+    mPlugin.clear();
+    mInitCheck = NO_INIT;
+
+    return OK;
+}
+
+status_t DrmHal::openSession(Vector<uint8_t> &sessionId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t  err = UNKNOWN_ERROR;
+
+    bool retry = true;
+    do {
+        hidl_vec<uint8_t> hSessionId;
+
+        Return<void> hResult = mPlugin->openSession(
+                [&](Status status, const hidl_vec<uint8_t>& id) {
+                    if (status == Status::OK) {
+                        sessionId = toVector(id);
+                    }
+                    err = toStatusT(status);
+                }
+            );
+
+        if (!hResult.isOk()) {
+            err = DEAD_OBJECT;
+        }
+
+        if (err == ERROR_DRM_RESOURCE_BUSY && retry) {
+            mLock.unlock();
+            // reclaimSession may call back to closeSession, since mLock is
+            // shared between Drm instances, we should unlock here to avoid
+            // deadlock.
+            retry = DrmSessionManager::Instance()->reclaimSession(getCallingPid());
+            mLock.lock();
+        } else {
+            retry = false;
+        }
+    } while (retry);
+
+    if (err == OK) {
+        DrmSessionManager::Instance()->addSession(getCallingPid(),
+                mDrmSessionClient, sessionId);
+    }
+    return err;
+}
+
+status_t DrmHal::closeSession(Vector<uint8_t> const &sessionId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    Status status = mPlugin->closeSession(toHidlVec(sessionId));
+    if (status == Status::OK) {
+        DrmSessionManager::Instance()->removeSession(sessionId);
+    }
+    return toStatusT(status);
+}
+
+status_t DrmHal::getKeyRequest(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &initData, String8 const &mimeType,
+        DrmPlugin::KeyType keyType, KeyedVector<String8,
+        String8> const &optionalParameters, Vector<uint8_t> &request,
+        String8 &defaultUrl, DrmPlugin::KeyRequestType *keyRequestType) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    KeyType hKeyType;
+    if (keyType == DrmPlugin::kKeyType_Streaming) {
+        hKeyType = KeyType::STREAMING;
+    } else if (keyType == DrmPlugin::kKeyType_Offline) {
+        hKeyType = KeyType::OFFLINE;
+    } else if (keyType == DrmPlugin::kKeyType_Release) {
+        hKeyType = KeyType::RELEASE;
+    } else {
+        return BAD_VALUE;
+    }
+
+    ::KeyedVector hOptionalParameters = toHidlKeyedVector(optionalParameters);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getKeyRequest(toHidlVec(sessionId),
+            toHidlVec(initData), toHidlString(mimeType), hKeyType, hOptionalParameters,
+            [&](Status status, const hidl_vec<uint8_t>& hRequest,
+                    KeyRequestType hKeyRequestType, const hidl_string& hDefaultUrl) {
+
+                if (status == Status::OK) {
+                    request = toVector(hRequest);
+                    defaultUrl = toString8(hDefaultUrl);
+
+                    switch (hKeyRequestType) {
+                    case KeyRequestType::INITIAL:
+                        *keyRequestType = DrmPlugin::kKeyRequestType_Initial;
+                        break;
+                    case KeyRequestType::RENEWAL:
+                        *keyRequestType = DrmPlugin::kKeyRequestType_Renewal;
+                        break;
+                    case KeyRequestType::RELEASE:
+                        *keyRequestType = DrmPlugin::kKeyRequestType_Release;
+                        break;
+                    default:
+                        *keyRequestType = DrmPlugin::kKeyRequestType_Unknown;
+                        break;
+                    }
+                    err = toStatusT(status);
+                }
+            });
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::provideKeyResponse(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &response, Vector<uint8_t> &keySetId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->provideKeyResponse(toHidlVec(sessionId),
+            toHidlVec(response),
+            [&](Status status, const hidl_vec<uint8_t>& hKeySetId) {
+                if (status == Status::OK) {
+                    keySetId = toVector(hKeySetId);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::removeKeys(Vector<uint8_t> const &keySetId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    return toStatusT(mPlugin->removeKeys(toHidlVec(keySetId)));
+}
+
+status_t DrmHal::restoreKeys(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &keySetId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    return toStatusT(mPlugin->restoreKeys(toHidlVec(sessionId),
+                    toHidlVec(keySetId)));
+}
+
+status_t DrmHal::queryKeyStatus(Vector<uint8_t> const &sessionId,
+        KeyedVector<String8, String8> &infoMap) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    ::KeyedVector hInfoMap;
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->queryKeyStatus(toHidlVec(sessionId),
+            [&](Status status, const hidl_vec<KeyValue>& map) {
+                if (status == Status::OK) {
+                    infoMap = toKeyedVector(map);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::getProvisionRequest(String8 const &certType,
+        String8 const &certAuthority, Vector<uint8_t> &request,
+        String8 &defaultUrl) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getProvisionRequest(
+            toHidlString(certType), toHidlString(certAuthority),
+            [&](Status status, const hidl_vec<uint8_t>& hRequest,
+                    const hidl_string& hDefaultUrl) {
+                if (status == Status::OK) {
+                    request = toVector(hRequest);
+                    defaultUrl = toString8(hDefaultUrl);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::provideProvisionResponse(Vector<uint8_t> const &response,
+        Vector<uint8_t> &certificate, Vector<uint8_t> &wrappedKey) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->provideProvisionResponse(toHidlVec(response),
+            [&](Status status, const hidl_vec<uint8_t>& hCertificate,
+                    const hidl_vec<uint8_t>& hWrappedKey) {
+                if (status == Status::OK) {
+                    certificate = toVector(hCertificate);
+                    wrappedKey = toVector(hWrappedKey);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::getSecureStops(List<Vector<uint8_t>> &secureStops) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getSecureStops(
+            [&](Status status, const hidl_vec<SecureStop>& hSecureStops) {
+                if (status == Status::OK) {
+                    secureStops = toSecureStops(hSecureStops);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+
+status_t DrmHal::getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getSecureStop(toHidlVec(ssid),
+            [&](Status status, const SecureStop& hSecureStop) {
+                if (status == Status::OK) {
+                    secureStop = toVector(hSecureStop.opaqueData);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::releaseSecureStops(Vector<uint8_t> const &ssRelease) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    return toStatusT(mPlugin->releaseSecureStop(toHidlVec(ssRelease)));
+}
+
+status_t DrmHal::releaseAllSecureStops() {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    return toStatusT(mPlugin->releaseAllSecureStops());
+}
+
+status_t DrmHal::getPropertyString(String8 const &name, String8 &value ) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getPropertyString(toHidlString(name),
+            [&](Status status, const hidl_string& hValue) {
+                if (status == Status::OK) {
+                    value = toString8(hValue);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::getPropertyByteArray(String8 const &name, Vector<uint8_t> &value ) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getPropertyByteArray(toHidlString(name),
+            [&](Status status, const hidl_vec<uint8_t>& hValue) {
+                if (status == Status::OK) {
+                    value = toVector(hValue);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::setPropertyString(String8 const &name, String8 const &value ) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    Status status =  mPlugin->setPropertyString(toHidlString(name),
+            toHidlString(value));
+    return toStatusT(status);
+}
+
+status_t DrmHal::setPropertyByteArray(String8 const &name,
+                                   Vector<uint8_t> const &value ) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    Status status = mPlugin->setPropertyByteArray(toHidlString(name),
+            toHidlVec(value));
+    return toStatusT(status);
+}
+
+
+status_t DrmHal::setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                 String8 const &algorithm) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    Status status = mPlugin->setCipherAlgorithm(toHidlVec(sessionId),
+            toHidlString(algorithm));
+    return toStatusT(status);
+}
+
+status_t DrmHal::setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                              String8 const &algorithm) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    Status status = mPlugin->setMacAlgorithm(toHidlVec(sessionId),
+            toHidlString(algorithm));
+    return toStatusT(status);
+}
+
+status_t DrmHal::encrypt(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &keyId, Vector<uint8_t> const &input,
+        Vector<uint8_t> const &iv, Vector<uint8_t> &output) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->encrypt(toHidlVec(sessionId),
+            toHidlVec(keyId), toHidlVec(input), toHidlVec(iv),
+            [&](Status status, const hidl_vec<uint8_t>& hOutput) {
+                if (status == Status::OK) {
+                    output = toVector(hOutput);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::decrypt(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &keyId, Vector<uint8_t> const &input,
+        Vector<uint8_t> const &iv, Vector<uint8_t> &output) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t  err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->decrypt(toHidlVec(sessionId),
+            toHidlVec(keyId), toHidlVec(input), toHidlVec(iv),
+            [&](Status status, const hidl_vec<uint8_t>& hOutput) {
+                if (status == Status::OK) {
+                    output = toVector(hOutput);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::sign(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &keyId, Vector<uint8_t> const &message,
+        Vector<uint8_t> &signature) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->sign(toHidlVec(sessionId),
+            toHidlVec(keyId), toHidlVec(message),
+            [&](Status status, const hidl_vec<uint8_t>& hSignature)  {
+                if (status == Status::OK) {
+                    signature = toVector(hSignature);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::verify(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &keyId, Vector<uint8_t> const &message,
+        Vector<uint8_t> const &signature, bool &match) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->verify(toHidlVec(sessionId),toHidlVec(keyId),
+            toHidlVec(message), toHidlVec(signature),
+            [&](Status status, bool hMatch) {
+                if (status == Status::OK) {
+                    match = hMatch;
+                } else {
+                    match = false;
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::signRSA(Vector<uint8_t> const &sessionId,
+        String8 const &algorithm, Vector<uint8_t> const &message,
+        Vector<uint8_t> const &wrappedKey, Vector<uint8_t> &signature) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    if (!checkPermission("android.permission.ACCESS_DRM_CERTIFICATES")) {
+        return -EPERM;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->signRSA(toHidlVec(sessionId),
+            toHidlString(algorithm), toHidlVec(message), toHidlVec(wrappedKey),
+            [&](Status status, const hidl_vec<uint8_t>& hSignature) {
+                if (status == Status::OK) {
+                    signature = toVector(hSignature);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+void DrmHal::binderDied(const wp<IBinder> &the_late_who __unused)
+{
+    Mutex::Autolock autoLock(mLock);
+    setListener(NULL);
+    if (mPlugin != NULL) {
+        mPlugin->setListener(NULL);
+    }
+    mPlugin.clear();
+    mInitCheck = NO_INIT;
+}
+
+void DrmHal::writeByteArray(Parcel &obj, hidl_vec<uint8_t> const &vec)
+{
+    if (vec.size()) {
+        obj.writeInt32(vec.size());
+        obj.write(vec.data(), vec.size());
+    } else {
+        obj.writeInt32(0);
+    }
+}
+
+}  // namespace android
diff --git a/drm/libmediadrm/DrmPluginPath.cpp b/drm/libmediadrm/DrmPluginPath.cpp
new file mode 100644
index 0000000..c760825
--- /dev/null
+++ b/drm/libmediadrm/DrmPluginPath.cpp
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "DrmPluginPath"
+#include <utils/Log.h>
+
+#include <cutils/properties.h>
+#include <media/DrmPluginPath.h>
+
+namespace android {
+
+const char* getDrmPluginPath() {
+    char value[PROPERTY_VALUE_MAX];
+    if (property_get("drm.64bit.enabled", value, NULL) == 0) {
+        return "/vendor/lib/mediadrm";
+    } else {
+        return "/vendor/lib64/mediadrm";
+    }
+}
+
+}  // namespace android
diff --git a/drm/libmediadrm/DrmSessionManager.cpp b/drm/libmediadrm/DrmSessionManager.cpp
index a87fb9d..02270d0 100644
--- a/drm/libmediadrm/DrmSessionManager.cpp
+++ b/drm/libmediadrm/DrmSessionManager.cpp
@@ -65,7 +65,7 @@
 DrmSessionManager::~DrmSessionManager() {}
 
 void DrmSessionManager::addSession(
-        int pid, sp<DrmSessionClientInterface> drm, const Vector<uint8_t> &sessionId) {
+        int pid, const sp<DrmSessionClientInterface>& drm, const Vector<uint8_t> &sessionId) {
     ALOGV("addSession(pid %d, drm %p, sessionId %s)", pid, drm.get(),
             GetSessionIdString(sessionId).string());
 
@@ -116,7 +116,7 @@
     }
 }
 
-void DrmSessionManager::removeDrm(sp<DrmSessionClientInterface> drm) {
+void DrmSessionManager::removeDrm(const sp<DrmSessionClientInterface>& drm) {
     ALOGV("removeDrm(%p)", drm.get());
 
     Mutex::Autolock lock(mLock);
diff --git a/drm/libmediadrm/ICrypto.cpp b/drm/libmediadrm/ICrypto.cpp
new file mode 100644
index 0000000..8506d95
--- /dev/null
+++ b/drm/libmediadrm/ICrypto.cpp
@@ -0,0 +1,461 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ICrypto"
+#include <utils/Log.h>
+
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <media/ICrypto.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+
+namespace android {
+
+enum {
+    INIT_CHECK = IBinder::FIRST_CALL_TRANSACTION,
+    IS_CRYPTO_SUPPORTED,
+    CREATE_PLUGIN,
+    DESTROY_PLUGIN,
+    REQUIRES_SECURE_COMPONENT,
+    DECRYPT,
+    NOTIFY_RESOLUTION,
+    SET_MEDIADRM_SESSION,
+    SET_HEAP,
+    UNSET_HEAP,
+};
+
+struct BpCrypto : public BpInterface<ICrypto> {
+    explicit BpCrypto(const sp<IBinder> &impl)
+        : BpInterface<ICrypto>(impl) {
+    }
+
+    virtual status_t initCheck() const {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        remote()->transact(INIT_CHECK, data, &reply);
+
+        return reply.readInt32();
+    }
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.write(uuid, 16);
+        remote()->transact(IS_CRYPTO_SUPPORTED, data, &reply);
+
+        return reply.readInt32() != 0;
+    }
+
+    virtual status_t createPlugin(
+            const uint8_t uuid[16], const void *opaqueData, size_t opaqueSize) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.write(uuid, 16);
+        data.writeInt32(opaqueSize);
+
+        if (opaqueSize > 0) {
+            data.write(opaqueData, opaqueSize);
+        }
+
+        remote()->transact(CREATE_PLUGIN, data, &reply);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t destroyPlugin() {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        remote()->transact(DESTROY_PLUGIN, data, &reply);
+
+        return reply.readInt32();
+    }
+
+    virtual bool requiresSecureDecoderComponent(
+            const char *mime) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.writeCString(mime);
+        remote()->transact(REQUIRES_SECURE_COMPONENT, data, &reply);
+
+        return reply.readInt32() != 0;
+    }
+
+    virtual ssize_t decrypt(const uint8_t key[16], const uint8_t iv[16],
+            CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+            const SourceBuffer &source, size_t offset,
+            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+            const DestinationBuffer &destination, AString *errorDetailMsg) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.writeInt32(mode);
+        data.writeInt32(pattern.mEncryptBlocks);
+        data.writeInt32(pattern.mSkipBlocks);
+
+        static const uint8_t kDummy[16] = { 0 };
+
+        if (key == NULL) {
+            key = kDummy;
+        }
+
+        if (iv == NULL) {
+            iv = kDummy;
+        }
+
+        data.write(key, 16);
+        data.write(iv, 16);
+
+        size_t totalSize = 0;
+        for (size_t i = 0; i < numSubSamples; ++i) {
+            totalSize += subSamples[i].mNumBytesOfEncryptedData;
+            totalSize += subSamples[i].mNumBytesOfClearData;
+        }
+
+        data.writeInt32(totalSize);
+        data.writeStrongBinder(IInterface::asBinder(source.mSharedMemory));
+        data.writeInt32(source.mHeapSeqNum);
+        data.writeInt32(offset);
+
+        data.writeInt32(numSubSamples);
+        data.write(subSamples, sizeof(CryptoPlugin::SubSample) * numSubSamples);
+
+        data.writeInt32((int32_t)destination.mType);
+        if (destination.mType == kDestinationTypeNativeHandle) {
+            if (destination.mHandle == NULL) {
+                return BAD_VALUE;
+            }
+            data.writeNativeHandle(destination.mHandle);
+        } else {
+            if (destination.mSharedMemory == NULL) {
+                return BAD_VALUE;
+            }
+            data.writeStrongBinder(IInterface::asBinder(destination.mSharedMemory));
+        }
+
+        remote()->transact(DECRYPT, data, &reply);
+
+        ssize_t result = reply.readInt32();
+
+        if (isCryptoError(result)) {
+            AString msg = reply.readCString();
+            if (errorDetailMsg) {
+                *errorDetailMsg = msg;
+            }
+        }
+
+        return result;
+    }
+
+    virtual void notifyResolution(
+        uint32_t width, uint32_t height) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.writeInt32(width);
+        data.writeInt32(height);
+        remote()->transact(NOTIFY_RESOLUTION, data, &reply);
+    }
+
+    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        remote()->transact(SET_MEDIADRM_SESSION, data, &reply);
+
+        return reply.readInt32();
+    }
+
+    virtual int32_t setHeap(const sp<IMemoryHeap> &heap) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.writeStrongBinder(IInterface::asBinder(heap));
+        status_t err = remote()->transact(SET_HEAP, data, &reply);
+        if (err != NO_ERROR) {
+            return -1;
+        }
+        int32_t seqNum;
+        if (reply.readInt32(&seqNum) != NO_ERROR) {
+            return -1;
+        }
+        return seqNum;
+    }
+
+    virtual void unsetHeap(int32_t seqNum) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.writeInt32(seqNum);
+        remote()->transact(UNSET_HEAP, data, &reply);
+        return;
+    }
+
+
+private:
+    void readVector(Parcel &reply, Vector<uint8_t> &vector) const {
+        uint32_t size = reply.readInt32();
+        vector.insertAt((size_t)0, size);
+        reply.read(vector.editArray(), size);
+    }
+
+    void writeVector(Parcel &data, Vector<uint8_t> const &vector) const {
+        data.writeInt32(vector.size());
+        data.write(vector.array(), vector.size());
+    }
+
+    DISALLOW_EVIL_CONSTRUCTORS(BpCrypto);
+};
+
+IMPLEMENT_META_INTERFACE(Crypto, "android.hardware.ICrypto");
+
+////////////////////////////////////////////////////////////////////////////////
+
+void BnCrypto::readVector(const Parcel &data, Vector<uint8_t> &vector) const {
+    uint32_t size = data.readInt32();
+    vector.insertAt((size_t)0, size);
+    data.read(vector.editArray(), size);
+}
+
+void BnCrypto::writeVector(Parcel *reply, Vector<uint8_t> const &vector) const {
+    reply->writeInt32(vector.size());
+    reply->write(vector.array(), vector.size());
+}
+
+status_t BnCrypto::onTransact(
+    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
+    switch (code) {
+        case INIT_CHECK:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+            reply->writeInt32(initCheck());
+
+            return OK;
+        }
+
+        case IS_CRYPTO_SUPPORTED:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+            uint8_t uuid[16];
+            data.read(uuid, sizeof(uuid));
+            reply->writeInt32(isCryptoSchemeSupported(uuid));
+
+            return OK;
+        }
+
+        case CREATE_PLUGIN:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+
+            uint8_t uuid[16];
+            data.read(uuid, sizeof(uuid));
+
+            size_t opaqueSize = data.readInt32();
+            void *opaqueData = NULL;
+
+            const size_t kMaxOpaqueSize = 100 * 1024;
+            if (opaqueSize > kMaxOpaqueSize) {
+                return BAD_VALUE;
+            }
+
+            opaqueData = malloc(opaqueSize);
+            if (NULL == opaqueData) {
+                return NO_MEMORY;
+            }
+
+            data.read(opaqueData, opaqueSize);
+            reply->writeInt32(createPlugin(uuid, opaqueData, opaqueSize));
+
+            free(opaqueData);
+            opaqueData = NULL;
+
+            return OK;
+        }
+
+        case DESTROY_PLUGIN:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+            reply->writeInt32(destroyPlugin());
+
+            return OK;
+        }
+
+        case REQUIRES_SECURE_COMPONENT:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+
+            const char *mime = data.readCString();
+            if (mime == NULL) {
+                reply->writeInt32(BAD_VALUE);
+            } else {
+                reply->writeInt32(requiresSecureDecoderComponent(mime));
+            }
+
+            return OK;
+        }
+
+        case DECRYPT:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+
+            CryptoPlugin::Mode mode = (CryptoPlugin::Mode)data.readInt32();
+            CryptoPlugin::Pattern pattern;
+            pattern.mEncryptBlocks = data.readInt32();
+            pattern.mSkipBlocks = data.readInt32();
+
+            uint8_t key[16];
+            data.read(key, sizeof(key));
+
+            uint8_t iv[16];
+            data.read(iv, sizeof(iv));
+
+            size_t totalSize = data.readInt32();
+
+            SourceBuffer source;
+
+            source.mSharedMemory =
+                interface_cast<IMemory>(data.readStrongBinder());
+            if (source.mSharedMemory == NULL) {
+                reply->writeInt32(BAD_VALUE);
+                return OK;
+            }
+            source.mHeapSeqNum = data.readInt32();
+
+            int32_t offset = data.readInt32();
+
+            int32_t numSubSamples = data.readInt32();
+            if (numSubSamples < 0 || numSubSamples > 0xffff) {
+                reply->writeInt32(BAD_VALUE);
+                return OK;
+            }
+
+            CryptoPlugin::SubSample *subSamples =
+                    new CryptoPlugin::SubSample[numSubSamples];
+
+            data.read(subSamples,
+                    sizeof(CryptoPlugin::SubSample) * numSubSamples);
+
+            DestinationBuffer destination;
+            destination.mType = (DestinationType)data.readInt32();
+            if (destination.mType == kDestinationTypeNativeHandle) {
+                destination.mHandle = data.readNativeHandle();
+                if (destination.mHandle == NULL) {
+                    reply->writeInt32(BAD_VALUE);
+                    return OK;
+                }
+            } else if (destination.mType == kDestinationTypeSharedMemory) {
+                destination.mSharedMemory =
+                        interface_cast<IMemory>(data.readStrongBinder());
+                if (destination.mSharedMemory == NULL) {
+                    reply->writeInt32(BAD_VALUE);
+                    return OK;
+                }
+            }
+
+            AString errorDetailMsg;
+            ssize_t result;
+
+            size_t sumSubsampleSizes = 0;
+            bool overflow = false;
+            for (int32_t i = 0; i < numSubSamples; ++i) {
+                CryptoPlugin::SubSample &ss = subSamples[i];
+                if (sumSubsampleSizes <= SIZE_MAX - ss.mNumBytesOfEncryptedData) {
+                    sumSubsampleSizes += ss.mNumBytesOfEncryptedData;
+                } else {
+                    overflow = true;
+                }
+                if (sumSubsampleSizes <= SIZE_MAX - ss.mNumBytesOfClearData) {
+                    sumSubsampleSizes += ss.mNumBytesOfClearData;
+                } else {
+                    overflow = true;
+                }
+            }
+
+            if (overflow || sumSubsampleSizes != totalSize) {
+                result = -EINVAL;
+            } else if (totalSize > source.mSharedMemory->size()) {
+                result = -EINVAL;
+            } else if ((size_t)offset > source.mSharedMemory->size() - totalSize) {
+                result = -EINVAL;
+            } else {
+                result = decrypt(key, iv, mode, pattern, source, offset,
+                        subSamples, numSubSamples, destination, &errorDetailMsg);
+            }
+
+            reply->writeInt32(result);
+
+            if (isCryptoError(result)) {
+                reply->writeCString(errorDetailMsg.c_str());
+            }
+
+            if (destination.mType == kDestinationTypeNativeHandle) {
+                int err;
+                if ((err = native_handle_close(destination.mHandle)) < 0) {
+                    ALOGW("secure buffer native_handle_close failed: %d", err);
+                }
+                if ((err = native_handle_delete(destination.mHandle)) < 0) {
+                    ALOGW("secure buffer native_handle_delete failed: %d", err);
+                }
+            }
+
+            delete[] subSamples;
+            subSamples = NULL;
+
+            return OK;
+        }
+
+        case NOTIFY_RESOLUTION:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+
+            int32_t width = data.readInt32();
+            int32_t height = data.readInt32();
+            notifyResolution(width, height);
+
+            return OK;
+        }
+
+        case SET_MEDIADRM_SESSION:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            readVector(data, sessionId);
+            reply->writeInt32(setMediaDrmSession(sessionId));
+            return OK;
+        }
+
+        case SET_HEAP:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+            sp<IMemoryHeap> heap =
+                interface_cast<IMemoryHeap>(data.readStrongBinder());
+            reply->writeInt32(setHeap(heap));
+            return OK;
+        }
+
+        case UNSET_HEAP:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+            int32_t seqNum = data.readInt32();
+            unsetHeap(seqNum);
+            return OK;
+        }
+
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+}  // namespace android
diff --git a/drm/libmediadrm/IDrm.cpp b/drm/libmediadrm/IDrm.cpp
new file mode 100644
index 0000000..8ff6e6a
--- /dev/null
+++ b/drm/libmediadrm/IDrm.cpp
@@ -0,0 +1,935 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "IDrm"
+#include <utils/Log.h>
+
+#include <binder/Parcel.h>
+#include <media/IDrm.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+
+namespace android {
+
+enum {
+    INIT_CHECK = IBinder::FIRST_CALL_TRANSACTION,
+    IS_CRYPTO_SUPPORTED,
+    CREATE_PLUGIN,
+    DESTROY_PLUGIN,
+    OPEN_SESSION,
+    CLOSE_SESSION,
+    GET_KEY_REQUEST,
+    PROVIDE_KEY_RESPONSE,
+    REMOVE_KEYS,
+    RESTORE_KEYS,
+    QUERY_KEY_STATUS,
+    GET_PROVISION_REQUEST,
+    PROVIDE_PROVISION_RESPONSE,
+    GET_SECURE_STOPS,
+    RELEASE_SECURE_STOPS,
+    GET_PROPERTY_STRING,
+    GET_PROPERTY_BYTE_ARRAY,
+    SET_PROPERTY_STRING,
+    SET_PROPERTY_BYTE_ARRAY,
+    SET_CIPHER_ALGORITHM,
+    SET_MAC_ALGORITHM,
+    ENCRYPT,
+    DECRYPT,
+    SIGN,
+    SIGN_RSA,
+    VERIFY,
+    SET_LISTENER,
+    GET_SECURE_STOP,
+    RELEASE_ALL_SECURE_STOPS
+};
+
+struct BpDrm : public BpInterface<IDrm> {
+    explicit BpDrm(const sp<IBinder> &impl)
+        : BpInterface<IDrm>(impl) {
+    }
+
+    virtual status_t initCheck() const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        status_t status = remote()->transact(INIT_CHECK, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        data.write(uuid, 16);
+        data.writeString8(mimeType);
+        status_t status = remote()->transact(IS_CRYPTO_SUPPORTED, data, &reply);
+        if (status != OK) {
+            ALOGE("isCryptoSchemeSupported: binder call failed: %d", status);
+            return false;
+        }
+
+        return reply.readInt32() != 0;
+    }
+
+    virtual status_t createPlugin(const uint8_t uuid[16],
+                                  const String8& appPackageName) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        data.write(uuid, 16);
+        data.writeString8(appPackageName);
+        status_t status = remote()->transact(CREATE_PLUGIN, data, &reply);
+        if (status != OK) {
+            ALOGE("createPlugin: binder call failed: %d", status);
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t destroyPlugin() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        status_t status = remote()->transact(DESTROY_PLUGIN, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t openSession(Vector<uint8_t> &sessionId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        status_t status = remote()->transact(OPEN_SESSION, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        readVector(reply, sessionId);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t closeSession(Vector<uint8_t> const &sessionId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        status_t status = remote()->transact(CLOSE_SESSION, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t
+        getKeyRequest(Vector<uint8_t> const &sessionId,
+                      Vector<uint8_t> const &initData,
+                      String8 const &mimeType, DrmPlugin::KeyType keyType,
+                      KeyedVector<String8, String8> const &optionalParameters,
+                      Vector<uint8_t> &request, String8 &defaultUrl,
+                      DrmPlugin::KeyRequestType *keyRequestType) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, initData);
+        data.writeString8(mimeType);
+        data.writeInt32((uint32_t)keyType);
+
+        data.writeInt32(optionalParameters.size());
+        for (size_t i = 0; i < optionalParameters.size(); ++i) {
+            data.writeString8(optionalParameters.keyAt(i));
+            data.writeString8(optionalParameters.valueAt(i));
+        }
+
+        status_t status = remote()->transact(GET_KEY_REQUEST, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, request);
+        defaultUrl = reply.readString8();
+        *keyRequestType = static_cast<DrmPlugin::KeyRequestType>(reply.readInt32());
+
+        return reply.readInt32();
+    }
+
+    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                        Vector<uint8_t> const &response,
+                                        Vector<uint8_t> &keySetId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        writeVector(data, sessionId);
+        writeVector(data, response);
+
+        status_t status = remote()->transact(PROVIDE_KEY_RESPONSE, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, keySetId);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t removeKeys(Vector<uint8_t> const &keySetId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, keySetId);
+        status_t status = remote()->transact(REMOVE_KEYS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
+                                 Vector<uint8_t> const &keySetId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, keySetId);
+        status_t status = remote()->transact(RESTORE_KEYS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                        KeyedVector<String8, String8> &infoMap) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        status_t status = remote()->transact(QUERY_KEY_STATUS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        infoMap.clear();
+        size_t count = reply.readInt32();
+        for (size_t i = 0; i < count; i++) {
+            String8 key = reply.readString8();
+            String8 value = reply.readString8();
+            infoMap.add(key, value);
+        }
+        return reply.readInt32();
+    }
+
+    virtual status_t getProvisionRequest(String8 const &certType,
+                                         String8 const &certAuthority,
+                                         Vector<uint8_t> &request,
+                                         String8 &defaultUrl) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        data.writeString8(certType);
+        data.writeString8(certAuthority);
+        status_t status = remote()->transact(GET_PROVISION_REQUEST, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, request);
+        defaultUrl = reply.readString8();
+
+        return reply.readInt32();
+    }
+
+    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
+                                              Vector<uint8_t> &certificate,
+                                              Vector<uint8_t> &wrappedKey) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, response);
+        status_t status = remote()->transact(PROVIDE_PROVISION_RESPONSE, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, certificate);
+        readVector(reply, wrappedKey);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        status_t status = remote()->transact(GET_SECURE_STOPS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        secureStops.clear();
+        uint32_t count = reply.readInt32();
+        for (size_t i = 0; i < count; i++) {
+            Vector<uint8_t> secureStop;
+            readVector(reply, secureStop);
+            secureStops.push_back(secureStop);
+        }
+        return reply.readInt32();
+    }
+
+    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, ssid);
+        status_t status = remote()->transact(GET_SECURE_STOP, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, secureStop);
+        return reply.readInt32();
+    }
+
+    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, ssRelease);
+        status_t status = remote()->transact(RELEASE_SECURE_STOPS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t releaseAllSecureStops() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        status_t status = remote()->transact(RELEASE_ALL_SECURE_STOPS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t getPropertyString(String8 const &name, String8 &value) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        data.writeString8(name);
+        status_t status = remote()->transact(GET_PROPERTY_STRING, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        value = reply.readString8();
+        return reply.readInt32();
+    }
+
+    virtual status_t getPropertyByteArray(String8 const &name, Vector<uint8_t> &value) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        data.writeString8(name);
+        status_t status = remote()->transact(GET_PROPERTY_BYTE_ARRAY, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, value);
+        return reply.readInt32();
+    }
+
+    virtual status_t setPropertyString(String8 const &name, String8 const &value) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        data.writeString8(name);
+        data.writeString8(value);
+        status_t status = remote()->transact(SET_PROPERTY_STRING, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t setPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> const &value) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        data.writeString8(name);
+        writeVector(data, value);
+        status_t status = remote()->transact(SET_PROPERTY_BYTE_ARRAY, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+
+    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                        String8 const &algorithm) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        data.writeString8(algorithm);
+        status_t status = remote()->transact(SET_CIPHER_ALGORITHM, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        return reply.readInt32();
+    }
+
+    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                     String8 const &algorithm) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        data.writeString8(algorithm);
+        status_t status = remote()->transact(SET_MAC_ALGORITHM, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        return reply.readInt32();
+    }
+
+    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, keyId);
+        writeVector(data, input);
+        writeVector(data, iv);
+
+        status_t status = remote()->transact(ENCRYPT, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        readVector(reply, output);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, keyId);
+        writeVector(data, input);
+        writeVector(data, iv);
+
+        status_t status = remote()->transact(DECRYPT, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        readVector(reply, output);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t sign(Vector<uint8_t> const &sessionId,
+                          Vector<uint8_t> const &keyId,
+                          Vector<uint8_t> const &message,
+                          Vector<uint8_t> &signature) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, keyId);
+        writeVector(data, message);
+
+        status_t status = remote()->transact(SIGN, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        readVector(reply, signature);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t verify(Vector<uint8_t> const &sessionId,
+                            Vector<uint8_t> const &keyId,
+                            Vector<uint8_t> const &message,
+                            Vector<uint8_t> const &signature,
+                            bool &match) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, keyId);
+        writeVector(data, message);
+        writeVector(data, signature);
+
+        status_t status = remote()->transact(VERIFY, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        match = (bool)reply.readInt32();
+        return reply.readInt32();
+    }
+
+    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
+                             String8 const &algorithm,
+                             Vector<uint8_t> const &message,
+                             Vector<uint8_t> const &wrappedKey,
+                             Vector<uint8_t> &signature) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        data.writeString8(algorithm);
+        writeVector(data, message);
+        writeVector(data, wrappedKey);
+
+        status_t status = remote()->transact(SIGN_RSA, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        readVector(reply, signature);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t setListener(const sp<IDrmClient>& listener) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        data.writeStrongBinder(IInterface::asBinder(listener));
+        status_t status = remote()->transact(SET_LISTENER, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        return reply.readInt32();
+    }
+
+private:
+    void readVector(Parcel &reply, Vector<uint8_t> &vector) const {
+        uint32_t size = reply.readInt32();
+        vector.insertAt((size_t)0, size);
+        reply.read(vector.editArray(), size);
+    }
+
+    void writeVector(Parcel &data, Vector<uint8_t> const &vector) const {
+        data.writeInt32(vector.size());
+        data.write(vector.array(), vector.size());
+    }
+
+    DISALLOW_EVIL_CONSTRUCTORS(BpDrm);
+};
+
+IMPLEMENT_META_INTERFACE(Drm, "android.drm.IDrm");
+
+////////////////////////////////////////////////////////////////////////////////
+
+void BnDrm::readVector(const Parcel &data, Vector<uint8_t> &vector) const {
+    uint32_t size = data.readInt32();
+    if (vector.insertAt((size_t)0, size) < 0) {
+        vector.clear();
+    }
+    if (data.read(vector.editArray(), size) != NO_ERROR) {
+        vector.clear();
+        android_errorWriteWithInfoLog(0x534e4554, "62872384", -1, NULL, 0);
+    }
+}
+
+void BnDrm::writeVector(Parcel *reply, Vector<uint8_t> const &vector) const {
+    reply->writeInt32(vector.size());
+    reply->write(vector.array(), vector.size());
+}
+
+status_t BnDrm::onTransact(
+    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
+    switch (code) {
+        case INIT_CHECK:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            reply->writeInt32(initCheck());
+            return OK;
+        }
+
+        case IS_CRYPTO_SUPPORTED:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            uint8_t uuid[16];
+            data.read(uuid, sizeof(uuid));
+            String8 mimeType = data.readString8();
+            reply->writeInt32(isCryptoSchemeSupported(uuid, mimeType));
+            return OK;
+        }
+
+        case CREATE_PLUGIN:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            uint8_t uuid[16];
+            data.read(uuid, sizeof(uuid));
+            String8 appPackageName = data.readString8();
+            reply->writeInt32(createPlugin(uuid, appPackageName));
+            return OK;
+        }
+
+        case DESTROY_PLUGIN:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            reply->writeInt32(destroyPlugin());
+            return OK;
+        }
+
+        case OPEN_SESSION:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            status_t result = openSession(sessionId);
+            writeVector(reply, sessionId);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case CLOSE_SESSION:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            readVector(data, sessionId);
+            reply->writeInt32(closeSession(sessionId));
+            return OK;
+        }
+
+        case GET_KEY_REQUEST:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, initData;
+
+            readVector(data, sessionId);
+            readVector(data, initData);
+            String8 mimeType = data.readString8();
+            DrmPlugin::KeyType keyType = (DrmPlugin::KeyType)data.readInt32();
+
+            KeyedVector<String8, String8> optionalParameters;
+            uint32_t count = data.readInt32();
+            for (size_t i = 0; i < count; ++i) {
+                String8 key, value;
+                key = data.readString8();
+                value = data.readString8();
+                optionalParameters.add(key, value);
+            }
+
+            Vector<uint8_t> request;
+            String8 defaultUrl;
+            DrmPlugin::KeyRequestType keyRequestType = DrmPlugin::kKeyRequestType_Unknown;
+
+            status_t result = getKeyRequest(sessionId, initData, mimeType,
+                    keyType, optionalParameters, request, defaultUrl,
+                    &keyRequestType);
+
+            writeVector(reply, request);
+            reply->writeString8(defaultUrl);
+            reply->writeInt32(static_cast<int32_t>(keyRequestType));
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case PROVIDE_KEY_RESPONSE:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, response, keySetId;
+            readVector(data, sessionId);
+            readVector(data, response);
+            uint32_t result = provideKeyResponse(sessionId, response, keySetId);
+            writeVector(reply, keySetId);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case REMOVE_KEYS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> keySetId;
+            readVector(data, keySetId);
+            reply->writeInt32(removeKeys(keySetId));
+            return OK;
+        }
+
+        case RESTORE_KEYS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, keySetId;
+            readVector(data, sessionId);
+            readVector(data, keySetId);
+            reply->writeInt32(restoreKeys(sessionId, keySetId));
+            return OK;
+        }
+
+        case QUERY_KEY_STATUS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            readVector(data, sessionId);
+            KeyedVector<String8, String8> infoMap;
+            status_t result = queryKeyStatus(sessionId, infoMap);
+            size_t count = infoMap.size();
+            reply->writeInt32(count);
+            for (size_t i = 0; i < count; ++i) {
+                reply->writeString8(infoMap.keyAt(i));
+                reply->writeString8(infoMap.valueAt(i));
+            }
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case GET_PROVISION_REQUEST:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            String8 certType = data.readString8();
+            String8 certAuthority = data.readString8();
+
+            Vector<uint8_t> request;
+            String8 defaultUrl;
+            status_t result = getProvisionRequest(certType, certAuthority,
+                                                  request, defaultUrl);
+            writeVector(reply, request);
+            reply->writeString8(defaultUrl);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case PROVIDE_PROVISION_RESPONSE:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> response;
+            Vector<uint8_t> certificate;
+            Vector<uint8_t> wrappedKey;
+            readVector(data, response);
+            status_t result = provideProvisionResponse(response, certificate, wrappedKey);
+            writeVector(reply, certificate);
+            writeVector(reply, wrappedKey);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case GET_SECURE_STOPS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            List<Vector<uint8_t> > secureStops;
+            status_t result = getSecureStops(secureStops);
+            size_t count = secureStops.size();
+            reply->writeInt32(count);
+            List<Vector<uint8_t> >::iterator iter = secureStops.begin();
+            while(iter != secureStops.end()) {
+                size_t size = iter->size();
+                reply->writeInt32(size);
+                reply->write(iter->array(), iter->size());
+                iter++;
+            }
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case GET_SECURE_STOP:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> ssid, secureStop;
+            readVector(data, ssid);
+            status_t result = getSecureStop(ssid, secureStop);
+            writeVector(reply, secureStop);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case RELEASE_SECURE_STOPS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> ssRelease;
+            readVector(data, ssRelease);
+            reply->writeInt32(releaseSecureStops(ssRelease));
+            return OK;
+        }
+
+        case RELEASE_ALL_SECURE_STOPS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            reply->writeInt32(releaseAllSecureStops());
+            return OK;
+        }
+
+        case GET_PROPERTY_STRING:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            String8 name = data.readString8();
+            String8 value;
+            status_t result = getPropertyString(name, value);
+            reply->writeString8(value);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case GET_PROPERTY_BYTE_ARRAY:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            String8 name = data.readString8();
+            Vector<uint8_t> value;
+            status_t result = getPropertyByteArray(name, value);
+            writeVector(reply, value);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case SET_PROPERTY_STRING:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            String8 name = data.readString8();
+            String8 value = data.readString8();
+            reply->writeInt32(setPropertyString(name, value));
+            return OK;
+        }
+
+        case SET_PROPERTY_BYTE_ARRAY:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            String8 name = data.readString8();
+            Vector<uint8_t> value;
+            readVector(data, value);
+            reply->writeInt32(setPropertyByteArray(name, value));
+            return OK;
+        }
+
+        case SET_CIPHER_ALGORITHM:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            readVector(data, sessionId);
+            String8 algorithm = data.readString8();
+            reply->writeInt32(setCipherAlgorithm(sessionId, algorithm));
+            return OK;
+        }
+
+        case SET_MAC_ALGORITHM:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            readVector(data, sessionId);
+            String8 algorithm = data.readString8();
+            reply->writeInt32(setMacAlgorithm(sessionId, algorithm));
+            return OK;
+        }
+
+        case ENCRYPT:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, keyId, input, iv, output;
+            readVector(data, sessionId);
+            readVector(data, keyId);
+            readVector(data, input);
+            readVector(data, iv);
+            uint32_t result = encrypt(sessionId, keyId, input, iv, output);
+            writeVector(reply, output);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case DECRYPT:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, keyId, input, iv, output;
+            readVector(data, sessionId);
+            readVector(data, keyId);
+            readVector(data, input);
+            readVector(data, iv);
+            uint32_t result = decrypt(sessionId, keyId, input, iv, output);
+            writeVector(reply, output);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case SIGN:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, keyId, message, signature;
+            readVector(data, sessionId);
+            readVector(data, keyId);
+            readVector(data, message);
+            uint32_t result = sign(sessionId, keyId, message, signature);
+            writeVector(reply, signature);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case VERIFY:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, keyId, message, signature;
+            readVector(data, sessionId);
+            readVector(data, keyId);
+            readVector(data, message);
+            readVector(data, signature);
+            bool match = false;
+            uint32_t result = verify(sessionId, keyId, message, signature, match);
+            reply->writeInt32(match);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case SIGN_RSA:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, message, wrappedKey, signature;
+            readVector(data, sessionId);
+            String8 algorithm = data.readString8();
+            readVector(data, message);
+            readVector(data, wrappedKey);
+            uint32_t result = signRSA(sessionId, algorithm, message, wrappedKey, signature);
+            writeVector(reply, signature);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+    case SET_LISTENER: {
+        CHECK_INTERFACE(IDrm, data, reply);
+        sp<IDrmClient> listener =
+            interface_cast<IDrmClient>(data.readStrongBinder());
+        reply->writeInt32(setListener(listener));
+        return NO_ERROR;
+    } break;
+
+    default:
+        return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+}  // namespace android
diff --git a/drm/libmediadrm/IDrmClient.cpp b/drm/libmediadrm/IDrmClient.cpp
new file mode 100644
index 0000000..444201f
--- /dev/null
+++ b/drm/libmediadrm/IDrmClient.cpp
@@ -0,0 +1,81 @@
+/*
+**
+** Copyright 2013, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "IDrmClient"
+#include <utils/Log.h>
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+
+#include <media/IMediaPlayerClient.h>
+#include <media/IDrmClient.h>
+
+namespace android {
+
+enum {
+    NOTIFY = IBinder::FIRST_CALL_TRANSACTION,
+};
+
+class BpDrmClient: public BpInterface<IDrmClient>
+{
+public:
+    explicit BpDrmClient(const sp<IBinder>& impl)
+        : BpInterface<IDrmClient>(impl)
+    {
+    }
+
+    virtual void notify(DrmPlugin::EventType eventType, int extra, const Parcel *obj)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrmClient::getInterfaceDescriptor());
+        data.writeInt32((int)eventType);
+        data.writeInt32(extra);
+        if (obj && obj->dataSize() > 0) {
+            data.appendFrom(const_cast<Parcel *>(obj), 0, obj->dataSize());
+        }
+        remote()->transact(NOTIFY, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+};
+
+IMPLEMENT_META_INTERFACE(DrmClient, "android.media.IDrmClient");
+
+// ----------------------------------------------------------------------
+
+status_t BnDrmClient::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+        case NOTIFY: {
+            CHECK_INTERFACE(IDrmClient, data, reply);
+            int eventType = data.readInt32();
+            int extra = data.readInt32();
+            Parcel obj;
+            if (data.dataAvail() > 0) {
+                obj.appendFrom(const_cast<Parcel *>(&data), data.dataPosition(), data.dataAvail());
+            }
+
+            notify((DrmPlugin::EventType)eventType, extra, &obj);
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+} // namespace android
diff --git a/drm/libmediadrm/IMediaDrmService.cpp b/drm/libmediadrm/IMediaDrmService.cpp
new file mode 100644
index 0000000..84812dc
--- /dev/null
+++ b/drm/libmediadrm/IMediaDrmService.cpp
@@ -0,0 +1,88 @@
+/*
+**
+** Copyright 2015, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <media/ICrypto.h>
+#include <media/IDrm.h>
+#include <media/IMediaDrmService.h>
+
+#include <utils/Errors.h>  // for status_t
+#include <utils/String8.h>
+
+namespace android {
+
+enum {
+    MAKE_CRYPTO = IBinder::FIRST_CALL_TRANSACTION,
+    MAKE_DRM,
+};
+
+class BpMediaDrmService: public BpInterface<IMediaDrmService>
+{
+public:
+    explicit BpMediaDrmService(const sp<IBinder>& impl)
+        : BpInterface<IMediaDrmService>(impl)
+    {
+    }
+
+    virtual sp<ICrypto> makeCrypto() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaDrmService::getInterfaceDescriptor());
+        remote()->transact(MAKE_CRYPTO, data, &reply);
+        return interface_cast<ICrypto>(reply.readStrongBinder());
+    }
+
+    virtual sp<IDrm> makeDrm() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaDrmService::getInterfaceDescriptor());
+        remote()->transact(MAKE_DRM, data, &reply);
+        return interface_cast<IDrm>(reply.readStrongBinder());
+    }
+
+};
+
+IMPLEMENT_META_INTERFACE(MediaDrmService, "android.media.IMediaDrmService");
+
+// ----------------------------------------------------------------------
+
+status_t BnMediaDrmService::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+        case MAKE_CRYPTO: {
+            CHECK_INTERFACE(IMediaDrmService, data, reply);
+            sp<ICrypto> crypto = makeCrypto();
+            reply->writeStrongBinder(IInterface::asBinder(crypto));
+            return NO_ERROR;
+        } break;
+        case MAKE_DRM: {
+            CHECK_INTERFACE(IMediaDrmService, data, reply);
+            sp<IDrm> drm = makeDrm();
+            reply->writeStrongBinder(IInterface::asBinder(drm));
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/drm/libmediadrm/MediaCasDefs.cpp b/drm/libmediadrm/MediaCasDefs.cpp
new file mode 100644
index 0000000..9c2ba38
--- /dev/null
+++ b/drm/libmediadrm/MediaCasDefs.cpp
@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaCas"
+
+#include <media/MediaCasDefs.h>
+#include <utils/Log.h>
+#include <binder/IMemory.h>
+
+namespace android {
+namespace media {
+
+///////////////////////////////////////////////////////////////////////////////
+namespace MediaCas {
+
+status_t ParcelableCasData::readFromParcel(const Parcel* parcel) {
+    return parcel->readByteVector(this);
+}
+
+status_t ParcelableCasData::writeToParcel(Parcel* parcel) const  {
+    return parcel->writeByteVector(*this);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+status_t ParcelableCasPluginDescriptor::readFromParcel(const Parcel* /*parcel*/) {
+    ALOGE("CAPluginDescriptor::readFromParcel() shouldn't be called");
+    return INVALID_OPERATION;
+}
+
+status_t ParcelableCasPluginDescriptor::writeToParcel(Parcel* parcel) const {
+    status_t err = parcel->writeInt32(mCASystemId);
+    if (err != NO_ERROR) {
+        return err;
+    }
+    return parcel->writeString16(mName);
+}
+
+} // namespace MediaCas
+///////////////////////////////////////////////////////////////////////////////
+
+namespace MediaDescrambler {
+
+DescrambleInfo::DescrambleInfo() {}
+
+DescrambleInfo::~DescrambleInfo() {}
+
+status_t DescrambleInfo::readFromParcel(const Parcel* parcel) {
+    status_t err = parcel->readInt32((int32_t*)&dstType);
+    if (err != OK) {
+        return err;
+    }
+    if (dstType != kDestinationTypeNativeHandle
+            && dstType != kDestinationTypeVmPointer) {
+        return BAD_VALUE;
+    }
+
+    err = parcel->readInt32((int32_t*)&scramblingControl);
+    if (err != OK) {
+        return err;
+    }
+
+    err = parcel->readUint32((uint32_t*)&numSubSamples);
+    if (err != OK) {
+        return err;
+    }
+    if (numSubSamples > 0xffff) {
+        return BAD_VALUE;
+    }
+
+    subSamples = new DescramblerPlugin::SubSample[numSubSamples];
+    if (subSamples == NULL) {
+        return NO_MEMORY;
+    }
+
+    for (size_t i = 0; i < numSubSamples; i++) {
+        err = parcel->readUint32(&subSamples[i].mNumBytesOfClearData);
+        if (err != OK) {
+            return err;
+        }
+        err = parcel->readUint32(&subSamples[i].mNumBytesOfEncryptedData);
+        if (err != OK) {
+            return err;
+        }
+    }
+
+    srcMem = interface_cast<IMemory>(parcel->readStrongBinder());
+    if (srcMem == NULL) {
+        return BAD_VALUE;
+    }
+
+    err = parcel->readInt32(&srcOffset);
+    if (err != OK) {
+        return err;
+    }
+
+    native_handle_t *nativeHandle = NULL;
+    if (dstType == kDestinationTypeNativeHandle) {
+        nativeHandle = parcel->readNativeHandle();
+        dstPtr = static_cast<void *>(nativeHandle);
+    } else {
+        dstPtr = NULL;
+    }
+
+    err = parcel->readInt32(&dstOffset);
+    if (err != OK) {
+        return err;
+    }
+
+    return OK;
+}
+
+status_t DescrambleInfo::writeToParcel(Parcel* parcel) const {
+    if (dstType != kDestinationTypeNativeHandle
+            && dstType != kDestinationTypeVmPointer) {
+        return BAD_VALUE;
+    }
+
+    status_t err = parcel->writeInt32((int32_t)dstType);
+    if (err != OK) {
+        return err;
+    }
+
+    err = parcel->writeInt32(scramblingControl);
+    if (err != OK) {
+        return err;
+    }
+
+    err = parcel->writeUint32(numSubSamples);
+    if (err != OK) {
+        return err;
+    }
+
+    for (size_t i = 0; i < numSubSamples; i++) {
+        err = parcel->writeUint32(subSamples[i].mNumBytesOfClearData);
+        if (err != OK) {
+            return err;
+        }
+        err = parcel->writeUint32(subSamples[i].mNumBytesOfEncryptedData);
+        if (err != OK) {
+            return err;
+        }
+    }
+
+    err = parcel->writeStrongBinder(IInterface::asBinder(srcMem));
+    if (err != OK) {
+        return err;
+    }
+
+    err = parcel->writeInt32(srcOffset);
+    if (err != OK) {
+        return err;
+    }
+
+    if (dstType == kDestinationTypeNativeHandle) {
+        parcel->writeNativeHandle(static_cast<native_handle_t *>(dstPtr));
+    }
+
+    err = parcel->writeInt32(dstOffset);
+    if (err != OK) {
+        return err;
+    }
+
+    return OK;
+}
+
+} // namespace MediaDescrambler
+
+} // namespace media
+} // namespace android
+
diff --git a/drm/libmediadrm/SharedLibrary.cpp b/drm/libmediadrm/SharedLibrary.cpp
index 74b3a71..bebafa8 100644
--- a/drm/libmediadrm/SharedLibrary.cpp
+++ b/drm/libmediadrm/SharedLibrary.cpp
@@ -43,6 +43,9 @@
         if (!mLibHandle) {
             return NULL;
         }
+        // Clear last error before we load the symbol again,
+        // in case the caller didn't retrieve it.
+        (void)dlerror();
         return dlsym(mLibHandle, symbol);
     }
 
diff --git a/drm/libmediadrm/aidl/android/media/ICas.aidl b/drm/libmediadrm/aidl/android/media/ICas.aidl
new file mode 100644
index 0000000..9746593
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/ICas.aidl
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.media.MediaCas;
+
+/** @hide */
+interface ICas {
+    void setPrivateData(in byte[] pvtData);
+    byte[] openSession();
+    void closeSession(in byte[] sessionId);
+    void setSessionPrivateData(in byte[] sessionId, in byte[] pvtData);
+    void processEcm(in byte[] sessionId, in MediaCas.ParcelableCasData ecm);
+    void processEmm(in MediaCas.ParcelableCasData emm);
+    void sendEvent(int event, int arg, in @nullable byte[] eventData);
+    void provision(String provisionString);
+    void refreshEntitlements(int refreshType, in @nullable byte[] refreshData);
+    void release();
+}
\ No newline at end of file
diff --git a/drm/libmediadrm/aidl/android/media/ICasListener.aidl b/drm/libmediadrm/aidl/android/media/ICasListener.aidl
new file mode 100644
index 0000000..01a5abc
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/ICasListener.aidl
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+/** @hide */
+interface ICasListener {
+    void onEvent(int event, int arg, in @nullable byte[] data);
+}
\ No newline at end of file
diff --git a/drm/libmediadrm/aidl/android/media/IDescrambler.aidl b/drm/libmediadrm/aidl/android/media/IDescrambler.aidl
new file mode 100644
index 0000000..fdf99eb
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/IDescrambler.aidl
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.media.MediaDescrambler;
+
+/** @hide */
+interface IDescrambler {
+    void setMediaCasSession(in byte[] sessionId);
+    boolean requiresSecureDecoderComponent(String mime);
+    int descramble(in MediaDescrambler.DescrambleInfo descrambleInfo);
+    void release();
+}
\ No newline at end of file
diff --git a/drm/libmediadrm/aidl/android/media/IMediaCasService.aidl b/drm/libmediadrm/aidl/android/media/IMediaCasService.aidl
new file mode 100644
index 0000000..44f6825
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/IMediaCasService.aidl
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.media.IDescrambler;
+import android.media.ICas;
+import android.media.ICasListener;
+import android.media.MediaCas;
+
+/** @hide */
+interface IMediaCasService {
+    MediaCas.ParcelableCasPluginDescriptor[] enumeratePlugins();
+    boolean isSystemIdSupported(int CA_system_id);
+    ICas createPlugin(int CA_system_id, ICasListener listener);
+    boolean isDescramblerSupported(int CA_system_id);
+    IDescrambler createDescrambler(int CA_system_id);
+}
+
diff --git a/drm/libmediadrm/aidl/android/media/MediaCas.aidl b/drm/libmediadrm/aidl/android/media/MediaCas.aidl
new file mode 100644
index 0000000..cb8d0c6
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/MediaCas.aidl
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+/** @hide */
+parcelable MediaCas.ParcelableCasPluginDescriptor cpp_header "media/MediaCasDefs.h";
+
+/** @hide */
+parcelable MediaCas.ParcelableCasData cpp_header "media/MediaCasDefs.h";
\ No newline at end of file
diff --git a/drm/libmediadrm/aidl/android/media/MediaDescrambler.aidl b/drm/libmediadrm/aidl/android/media/MediaDescrambler.aidl
new file mode 100644
index 0000000..e789244
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/MediaDescrambler.aidl
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+/** @hide */
+parcelable MediaDescrambler.DescrambleInfo cpp_header "media/MediaCasDefs.h";
\ No newline at end of file
diff --git a/drm/mediacas/plugins/clearkey/Android.mk b/drm/mediacas/plugins/clearkey/Android.mk
new file mode 100644
index 0000000..8fd866c
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/Android.mk
@@ -0,0 +1,69 @@
+#
+# Copyright (C) 2017 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+    ClearKeyCasPlugin.cpp \
+    ClearKeyFetcher.cpp \
+    ClearKeyLicenseFetcher.cpp \
+    ClearKeySessionLibrary.cpp \
+    ecm.cpp \
+    ecm_generator.cpp \
+    JsonAssetLoader.cpp \
+    protos/license_protos.proto \
+
+LOCAL_MODULE := libclearkeycasplugin
+
+#TODO: move this back to /vendor/lib after conversion to treble
+#LOCAL_PROPRIETARY_MODULE := true
+LOCAL_MODULE_RELATIVE_PATH := mediacas
+
+LOCAL_SHARED_LIBRARIES := \
+    libutils \
+    liblog \
+    libcrypto \
+    libstagefright_foundation \
+    libprotobuf-cpp-lite \
+
+LOCAL_STATIC_LIBRARIES := \
+    libjsmn \
+
+LOCAL_MODULE_CLASS := SHARED_LIBRARIES
+
+LOCAL_PROTOC_OPTIMIZE_TYPE := full
+
+define proto_includes
+$(call local-generated-sources-dir)/proto/$(LOCAL_PATH)
+endef
+
+LOCAL_C_INCLUDES += \
+    external/jsmn \
+    frameworks/av/include \
+    frameworks/native/include/media \
+    $(call proto_includes)
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := \
+    $(call proto_includes)
+
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
+
+#########################################################################
+# Build unit tests
+
+include $(LOCAL_PATH)/tests/Android.mk
diff --git a/drm/mediacas/plugins/clearkey/ClearKeyCasPlugin.cpp b/drm/mediacas/plugins/clearkey/ClearKeyCasPlugin.cpp
new file mode 100644
index 0000000..4ed5fce
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ClearKeyCasPlugin.cpp
@@ -0,0 +1,485 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ClearKeyCasPlugin"
+
+#include "ClearKeyFetcher.h"
+#include "ecm.h"
+#include "ClearKeyLicenseFetcher.h"
+#include "ClearKeyCasPlugin.h"
+#include "ClearKeySessionLibrary.h"
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/hexdump.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/Log.h>
+
+android::CasFactory* createCasFactory() {
+    return new android::clearkeycas::ClearKeyCasFactory();
+}
+
+android::DescramblerFactory *createDescramblerFactory()
+{
+    return new android::clearkeycas::ClearKeyDescramblerFactory();
+}
+
+namespace android {
+namespace clearkeycas {
+
+static const int32_t sClearKeySystemId = 0xF6D8;
+
+bool ClearKeyCasFactory::isSystemIdSupported(int32_t CA_system_id) const {
+    return CA_system_id == sClearKeySystemId;
+}
+
+status_t ClearKeyCasFactory::queryPlugins(
+        std::vector<CasPluginDescriptor> *descriptors) const {
+    descriptors->clear();
+    descriptors->push_back({sClearKeySystemId, String8("Clear Key CAS")});
+    return OK;
+}
+
+status_t ClearKeyCasFactory::createPlugin(
+        int32_t CA_system_id,
+        uint64_t appData,
+        CasPluginCallback callback,
+        CasPlugin **plugin) {
+    if (!isSystemIdSupported(CA_system_id)) {
+        return BAD_VALUE;
+    }
+
+    *plugin = new ClearKeyCasPlugin(appData, callback);
+    return OK;
+}
+///////////////////////////////////////////////////////////////////////////////
+bool ClearKeyDescramblerFactory::isSystemIdSupported(
+        int32_t CA_system_id) const {
+    return CA_system_id == sClearKeySystemId;
+}
+
+status_t ClearKeyDescramblerFactory::createPlugin(
+        int32_t CA_system_id, DescramblerPlugin** plugin) {
+    if (!isSystemIdSupported(CA_system_id)) {
+        return BAD_VALUE;
+    }
+
+    *plugin = new ClearKeyDescramblerPlugin();
+    return OK;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+ClearKeyCasPlugin::ClearKeyCasPlugin(
+        uint64_t appData, CasPluginCallback callback)
+    : mCallback(callback), mAppData(appData) {
+    ALOGV("CTOR");
+}
+
+ClearKeyCasPlugin::~ClearKeyCasPlugin() {
+    ALOGV("DTOR");
+    ClearKeySessionLibrary::get()->destroyPlugin(this);
+}
+
+status_t ClearKeyCasPlugin::setPrivateData(const CasData &/*data*/) {
+    ALOGV("setPrivateData");
+
+    return OK;
+}
+
+static String8 sessionIdToString(const std::vector<uint8_t> &array) {
+    String8 result;
+    for (size_t i = 0; i < array.size(); i++) {
+        result.appendFormat("%02x ", array[i]);
+    }
+    if (result.isEmpty()) {
+        result.append("(null)");
+    }
+    return result;
+}
+
+status_t ClearKeyCasPlugin::openSession(CasSessionId* sessionId) {
+    ALOGV("openSession");
+
+    return ClearKeySessionLibrary::get()->addSession(this, sessionId);
+}
+
+status_t ClearKeyCasPlugin::closeSession(const CasSessionId &sessionId) {
+    ALOGV("closeSession: sessionId=%s", sessionIdToString(sessionId).string());
+    sp<ClearKeyCasSession> session =
+            ClearKeySessionLibrary::get()->findSession(sessionId);
+    if (session == NULL) {
+        return ERROR_DRM_SESSION_NOT_OPENED;
+    }
+
+    ClearKeySessionLibrary::get()->destroySession(sessionId);
+    return OK;
+}
+
+status_t ClearKeyCasPlugin::setSessionPrivateData(
+        const CasSessionId &sessionId, const CasData & /*data*/) {
+    ALOGV("setSessionPrivateData: sessionId=%s",
+            sessionIdToString(sessionId).string());
+    sp<ClearKeyCasSession> session =
+            ClearKeySessionLibrary::get()->findSession(sessionId);
+    if (session == NULL) {
+        return ERROR_DRM_SESSION_NOT_OPENED;
+    }
+    return OK;
+}
+
+status_t ClearKeyCasPlugin::processEcm(
+        const CasSessionId &sessionId, const CasEcm& ecm) {
+    ALOGV("processEcm: sessionId=%s", sessionIdToString(sessionId).string());
+    sp<ClearKeyCasSession> session =
+            ClearKeySessionLibrary::get()->findSession(sessionId);
+    if (session == NULL) {
+        return ERROR_DRM_SESSION_NOT_OPENED;
+    }
+
+    Mutex::Autolock lock(mKeyFetcherLock);
+
+    return session->updateECM(mKeyFetcher.get(), (void*)ecm.data(), ecm.size());
+}
+
+status_t ClearKeyCasPlugin::processEmm(const CasEmm& /*emm*/) {
+    ALOGV("processEmm");
+    Mutex::Autolock lock(mKeyFetcherLock);
+
+    return OK;
+}
+
+status_t ClearKeyCasPlugin::sendEvent(
+        int32_t event, int32_t arg, const CasData &eventData) {
+    ALOGV("sendEvent: event=%d, arg=%d", event, arg);
+    // Echo the received event to the callback.
+    // Clear key plugin doesn't use any event, echo'ing for testing only.
+    if (mCallback != NULL) {
+        mCallback((void*)mAppData, event, arg, (uint8_t*)eventData.data(), eventData.size());
+    }
+    return OK;
+}
+
+status_t ClearKeyCasPlugin::provision(const String8 &str) {
+    ALOGV("provision: provisionString=%s", str.string());
+    Mutex::Autolock lock(mKeyFetcherLock);
+
+    std::unique_ptr<ClearKeyLicenseFetcher> license_fetcher;
+    license_fetcher.reset(new ClearKeyLicenseFetcher());
+    status_t err = license_fetcher->Init(str.string());
+    if (err != OK) {
+        ALOGE("provision: failed to init ClearKeyLicenseFetcher (err=%d)", err);
+        return err;
+    }
+
+    std::unique_ptr<ClearKeyFetcher> key_fetcher;
+    key_fetcher.reset(new ClearKeyFetcher(std::move(license_fetcher)));
+    err = key_fetcher->Init();
+    if (err != OK) {
+        ALOGE("provision: failed to init ClearKeyFetcher (err=%d)", err);
+        return err;
+    }
+
+    ALOGV("provision: using ClearKeyFetcher");
+    mKeyFetcher = std::move(key_fetcher);
+
+    return OK;
+}
+
+status_t ClearKeyCasPlugin::refreshEntitlements(
+        int32_t refreshType, const CasData &/*refreshData*/) {
+    ALOGV("refreshEntitlements: refreshType=%d", refreshType);
+    Mutex::Autolock lock(mKeyFetcherLock);
+
+    return OK;
+}
+
+///////////////////////////////////////////////////////////////////////
+
+// AES-128 CBC-CTS decrypt optimized for Transport Packets. |key| is the AES
+// key (odd key or even key), |length| is the data size, and |buffer| is the
+// ciphertext to be decrypted in place.
+status_t TpBlockCtsDecrypt(const AES_KEY& key, size_t length, char* buffer) {
+    CHECK(buffer);
+
+    // Invariant: Packet must be at least 16 bytes.
+    CHECK(length >= AES_BLOCK_SIZE);
+
+    // OpenSSL uses unsigned char.
+    unsigned char* data = reinterpret_cast<unsigned char*>(buffer);
+
+    // Start with zero-filled initialization vector.
+    unsigned char iv[AES_BLOCK_SIZE];
+    memset(iv, 0, AES_BLOCK_SIZE);
+
+    // Size of partial last block handled via CTS.
+    int cts_byte_count = length % AES_BLOCK_SIZE;
+
+    // If there no is no partial last block, then process using normal CBC.
+    if (cts_byte_count == 0) {
+        AES_cbc_encrypt(data, data, length, &key, iv, 0);
+        return OK;
+    }
+
+    // Cipher text stealing (CTS) - Schneier Figure 9.5 p 196.
+    // In CTS mode, the last two blocks have been swapped. Block[n-1] is really
+    // the original block[n] combined with the low-order bytes of the original
+    // block[n-1], while block[n] is the high-order bytes of the original
+    // block[n-1] padded with zeros.
+
+    // Block[0] - block[n-2] are handled with normal CBC.
+    int cbc_byte_count = length - cts_byte_count - AES_BLOCK_SIZE;
+    if (cbc_byte_count > 0) {
+        AES_cbc_encrypt(data, data, cbc_byte_count, &key, iv, 0);
+        // |data| points to block[n-1].
+        data += cbc_byte_count;
+    }
+
+    // Save block[n] to use as IV when decrypting block[n-1].
+    unsigned char block_n[AES_BLOCK_SIZE];
+    memset(block_n, 0, AES_BLOCK_SIZE);
+    memcpy(block_n, data + AES_BLOCK_SIZE, cts_byte_count);
+
+    // Decrypt block[n-1] using block[n] as IV, consistent with the original
+    // block order.
+    AES_cbc_encrypt(data, data, AES_BLOCK_SIZE, &key, block_n, 0);
+
+    // Return the stolen ciphertext: swap the high-order bytes of block[n]
+    // and block[n-1].
+    for (int i = 0; i < cts_byte_count; i++) {
+        unsigned char temp = *(data + i);
+        *(data + i) = *(data + AES_BLOCK_SIZE + i);
+        *(data + AES_BLOCK_SIZE + i) = temp;
+    }
+
+    // Decrypt block[n-1] using previous IV.
+    AES_cbc_encrypt(data, data, AES_BLOCK_SIZE, &key, iv, 0);
+    return OK;
+}
+
+// PES header and ECM stream header layout
+//
+// processECM() receives the data_byte portion from the transport packet.
+// Below is the layout of the first 16 bytes of the ECM PES packet. Here
+// we don't parse them, we skip them and go to the ECM container directly.
+// The layout is included here only for reference.
+//
+// 0-2:   0x00 00 01 = start code prefix.
+// 3:     0xf0 = stream type (90 = ECM).
+// 4-5:   0x00 00 = PES length (filled in later, this is the length of the
+//                  PES header (16) plus the length of the ECM container).
+// 6-7:   0x00 00 = ECM major version.
+// 8-9:   0x00 01 = ECM minor version.
+// 10-11: 0x00 00 = Crypto period ID (filled in later).
+// 12-13: 0x00 00 = ECM container length (filled in later, either 84 or
+// 166).
+// 14-15: 0x00 00 = offset = 0.
+
+const static size_t kEcmHeaderLength = 16;
+const static size_t kUserKeyLength = 16;
+
+status_t ClearKeyCasSession::updateECM(
+        KeyFetcher *keyFetcher, void *ecm, size_t size) {
+    if (keyFetcher == nullptr) {
+        return ERROR_DRM_NOT_PROVISIONED;
+    }
+
+    if (size < kEcmHeaderLength) {
+        ALOGE("updateECM: invalid ecm size %zu", size);
+        return BAD_VALUE;
+    }
+
+    Mutex::Autolock _lock(mKeyLock);
+
+    if (mEcmBuffer != NULL && mEcmBuffer->capacity() == size
+            && !memcmp(mEcmBuffer->base(), ecm, size)) {
+        return OK;
+    }
+
+    mEcmBuffer = ABuffer::CreateAsCopy(ecm, size);
+    mEcmBuffer->setRange(kEcmHeaderLength, size - kEcmHeaderLength);
+
+    uint64_t asset_id;
+    std::vector<KeyFetcher::KeyInfo> keys;
+    status_t err = keyFetcher->ObtainKey(mEcmBuffer, &asset_id, &keys);
+    if (err != OK) {
+        ALOGE("updateECM: failed to obtain key (err=%d)", err);
+        return err;
+    }
+
+    ALOGV("updateECM: %zu key(s) found", keys.size());
+    for (size_t keyIndex = 0; keyIndex < keys.size(); keyIndex++) {
+        String8 str;
+
+        const sp<ABuffer>& keyBytes = keys[keyIndex].key_bytes;
+        CHECK(keyBytes->size() == kUserKeyLength);
+
+        int result = AES_set_decrypt_key(
+                reinterpret_cast<const uint8_t*>(keyBytes->data()),
+                AES_BLOCK_SIZE * 8, &mKeyInfo[keyIndex].contentKey);
+        mKeyInfo[keyIndex].valid = (result == 0);
+        if (!mKeyInfo[keyIndex].valid) {
+            ALOGE("updateECM: failed to set key %zu, key_id=%d",
+                    keyIndex, keys[keyIndex].key_id);
+        }
+    }
+    return OK;
+}
+
+// Decryption of a set of sub-samples
+ssize_t ClearKeyCasSession::decrypt(
+        bool secure, DescramblerPlugin::ScramblingControl scramblingControl,
+        size_t numSubSamples, const DescramblerPlugin::SubSample *subSamples,
+        const void *srcPtr, void *dstPtr, AString * /* errorDetailMsg */) {
+    if (secure) {
+        return ERROR_DRM_CANNOT_HANDLE;
+    }
+
+    AES_KEY contentKey;
+
+    if (scramblingControl != DescramblerPlugin::kScrambling_Unscrambled) {
+        // Hold lock to get the key only to avoid contention for decryption
+        Mutex::Autolock _lock(mKeyLock);
+
+        int32_t keyIndex = (scramblingControl & 1);
+        if (!mKeyInfo[keyIndex].valid) {
+            ALOGE("decrypt: key %d is invalid", keyIndex);
+            return ERROR_DRM_DECRYPT;
+        }
+        contentKey = mKeyInfo[keyIndex].contentKey;
+    }
+
+    uint8_t *src = (uint8_t*)srcPtr;
+    uint8_t *dst = (uint8_t*)dstPtr;
+
+    for (size_t i = 0; i < numSubSamples; i++) {
+        size_t numBytesinSubSample = subSamples[i].mNumBytesOfClearData
+                + subSamples[i].mNumBytesOfEncryptedData;
+        if (src != dst) {
+            memcpy(dst, src, numBytesinSubSample);
+        }
+        status_t err = OK;
+        // Don't decrypt if len < AES_BLOCK_SIZE.
+        // The last chunk shorter than AES_BLOCK_SIZE is not encrypted.
+        if (scramblingControl != DescramblerPlugin::kScrambling_Unscrambled
+                && subSamples[i].mNumBytesOfEncryptedData >= AES_BLOCK_SIZE) {
+            err = decryptPayload(
+                    contentKey,
+                    numBytesinSubSample,
+                    subSamples[i].mNumBytesOfClearData,
+                    (char *)dst);
+        }
+
+        dst += numBytesinSubSample;
+        src += numBytesinSubSample;
+    }
+    return dst - (uint8_t *)dstPtr;
+}
+
+// Decryption of a TS payload
+status_t ClearKeyCasSession::decryptPayload(
+        const AES_KEY& key, size_t length, size_t offset, char* buffer) const {
+    CHECK(buffer);
+
+    // Invariant: only call decryptPayload with TS packets with at least 16
+    // bytes of payload (AES_BLOCK_SIZE).
+
+    CHECK(length >= offset + AES_BLOCK_SIZE);
+
+    return TpBlockCtsDecrypt(key, length - offset, buffer + offset);
+}
+
+///////////////////////////////////////////////////////////////////////////
+#undef LOG_TAG
+#define LOG_TAG "ClearKeyDescramblerPlugin"
+
+bool ClearKeyDescramblerPlugin::requiresSecureDecoderComponent(
+        const char *mime) const {
+    ALOGV("requiresSecureDecoderComponent: mime=%s", mime);
+    return false;
+}
+
+status_t ClearKeyDescramblerPlugin::setMediaCasSession(
+        const CasSessionId &sessionId) {
+    ALOGV("setMediaCasSession: sessionId=%s", sessionIdToString(sessionId).string());
+
+    sp<ClearKeyCasSession> session =
+            ClearKeySessionLibrary::get()->findSession(sessionId);
+
+    if (session == NULL) {
+        ALOGE("ClearKeyDescramblerPlugin: session not found");
+        return ERROR_DRM_SESSION_NOT_OPENED;
+    }
+
+    mCASSession = session;
+    return OK;
+}
+
+ssize_t ClearKeyDescramblerPlugin::descramble(
+        bool secure,
+        ScramblingControl scramblingControl,
+        size_t numSubSamples,
+        const SubSample *subSamples,
+        const void *srcPtr,
+        int32_t srcOffset,
+        void *dstPtr,
+        int32_t dstOffset,
+        AString *errorDetailMsg) {
+
+    ALOGV("descramble: secure=%d, sctrl=%d, subSamples=%s, "
+            "srcPtr=%p, dstPtr=%p, srcOffset=%d, dstOffset=%d",
+          (int)secure, (int)scramblingControl,
+          subSamplesToString(subSamples, numSubSamples).string(),
+          srcPtr, dstPtr, srcOffset, dstOffset);
+
+    if (mCASSession == NULL) {
+        ALOGE("Uninitialized CAS session!");
+        return ERROR_DRM_DECRYPT_UNIT_NOT_INITIALIZED;
+    }
+
+    return mCASSession->decrypt(
+            secure, scramblingControl,
+            numSubSamples, subSamples,
+            (uint8_t*)srcPtr + srcOffset,
+            dstPtr == NULL ? NULL : ((uint8_t*)dstPtr + dstOffset),
+            errorDetailMsg);
+}
+
+// Conversion utilities
+String8 ClearKeyDescramblerPlugin::arrayToString(
+        uint8_t const *array, size_t len) const
+{
+    String8 result("{ ");
+    for (size_t i = 0; i < len; i++) {
+        result.appendFormat("0x%02x ", array[i]);
+    }
+    result += "}";
+    return result;
+}
+
+String8 ClearKeyDescramblerPlugin::subSamplesToString(
+        SubSample const *subSamples, size_t numSubSamples) const
+{
+    String8 result;
+    for (size_t i = 0; i < numSubSamples; i++) {
+        result.appendFormat("[%zu] {clear:%u, encrypted:%u} ", i,
+                            subSamples[i].mNumBytesOfClearData,
+                            subSamples[i].mNumBytesOfEncryptedData);
+    }
+    return result;
+}
+
+} // namespace clearkeycas
+} // namespace android
diff --git a/drm/mediacas/plugins/clearkey/ClearKeyCasPlugin.h b/drm/mediacas/plugins/clearkey/ClearKeyCasPlugin.h
new file mode 100644
index 0000000..b7134e4
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ClearKeyCasPlugin.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CLEARKEY_CAS_PLUGIN_H_
+#define CLEARKEY_CAS_PLUGIN_H_
+
+#include <media/cas/CasAPI.h>
+#include <media/cas/DescramblerAPI.h>
+#include <utils/Mutex.h>
+#include <utils/StrongPointer.h>
+
+extern "C" {
+      android::CasFactory *createCasFactory();
+      android::DescramblerFactory *createDescramblerFactory();
+}
+
+namespace android {
+namespace clearkeycas {
+
+class KeyFetcher;
+class ClearKeyCasSession;
+
+class ClearKeyCasFactory : public CasFactory {
+public:
+    ClearKeyCasFactory() {}
+    virtual ~ClearKeyCasFactory() {}
+
+    virtual bool isSystemIdSupported(
+            int32_t CA_system_id) const override;
+    virtual status_t queryPlugins(
+            std::vector<CasPluginDescriptor> *descriptors) const override;
+    virtual status_t createPlugin(
+            int32_t CA_system_id,
+            uint64_t appData,
+            CasPluginCallback callback,
+            CasPlugin **plugin) override;
+};
+
+class ClearKeyDescramblerFactory : public DescramblerFactory {
+public:
+    ClearKeyDescramblerFactory() {}
+    virtual ~ClearKeyDescramblerFactory() {}
+
+    virtual bool isSystemIdSupported(
+            int32_t CA_system_id) const override;
+    virtual status_t createPlugin(
+            int32_t CA_system_id, DescramblerPlugin **plugin) override;
+};
+
+class ClearKeyCasPlugin : public CasPlugin {
+public:
+    ClearKeyCasPlugin(uint64_t appData, CasPluginCallback callback);
+    virtual ~ClearKeyCasPlugin();
+
+    virtual status_t setPrivateData(
+            const CasData &data) override;
+
+    virtual status_t openSession(CasSessionId *sessionId) override;
+
+    virtual status_t closeSession(
+            const CasSessionId &sessionId) override;
+
+    virtual status_t setSessionPrivateData(
+            const CasSessionId &sessionId,
+            const CasData &data) override;
+
+    virtual status_t processEcm(
+            const CasSessionId &sessionId, const CasEcm &ecm) override;
+
+    virtual status_t processEmm(const CasEmm &emm) override;
+
+    virtual status_t sendEvent(
+            int32_t event, int32_t arg, const CasData &eventData) override;
+
+    virtual status_t provision(const String8 &str) override;
+
+    virtual status_t refreshEntitlements(
+            int32_t refreshType, const CasData &refreshData) override;
+
+private:
+    Mutex mKeyFetcherLock;
+    std::unique_ptr<KeyFetcher> mKeyFetcher;
+    CasPluginCallback mCallback;
+    uint64_t mAppData;
+};
+
+class ClearKeyDescramblerPlugin : public DescramblerPlugin {
+public:
+    ClearKeyDescramblerPlugin() {}
+    virtual ~ClearKeyDescramblerPlugin() {};
+
+    virtual bool requiresSecureDecoderComponent(
+            const char *mime) const override;
+
+    virtual status_t setMediaCasSession(
+            const CasSessionId &sessionId) override;
+
+    virtual ssize_t descramble(
+            bool secure,
+            ScramblingControl scramblingControl,
+            size_t numSubSamples,
+            const SubSample *subSamples,
+            const void *srcPtr,
+            int32_t srcOffset,
+            void *dstPtr,
+            int32_t dstOffset,
+            AString *errorDetailMsg) override;
+
+private:
+    sp<ClearKeyCasSession> mCASSession;
+
+    String8 subSamplesToString(
+            SubSample const *subSamples,
+            size_t numSubSamples) const;
+    String8 arrayToString(uint8_t const *array, size_t len) const;
+};
+
+} // namespace clearkeycas
+} // namespace android
+
+#endif // CLEARKEY_CAS_PLUGIN_H_
diff --git a/drm/mediacas/plugins/clearkey/ClearKeyFetcher.cpp b/drm/mediacas/plugins/clearkey/ClearKeyFetcher.cpp
new file mode 100644
index 0000000..cb69f91
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ClearKeyFetcher.cpp
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ClearKeyFetcher"
+
+#include <algorithm>
+#include <inttypes.h>
+#include <string>
+
+#include "ClearKeyFetcher.h"
+#include "ecm.h"
+#include "LicenseFetcher.h"
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <utils/Log.h>
+
+namespace android {
+namespace clearkeycas {
+
+ClearKeyFetcher::ClearKeyFetcher(
+        std::unique_ptr<LicenseFetcher> license_fetcher) :
+    initialized_(false),
+    license_fetcher_(std::move(license_fetcher)) {
+    CHECK(license_fetcher_);
+}
+
+ClearKeyFetcher::~ClearKeyFetcher() {}
+
+// This is a no-op but other KeyFetcher subclasses require initialization
+// so this is necessary to preserve the contract.
+status_t ClearKeyFetcher::Init() {
+    initialized_ = true;
+    return OK;
+}
+
+status_t ClearKeyFetcher::ObtainKey(const sp<ABuffer>& buffer,
+        uint64_t* asset_id, std::vector<KeyInfo>* keys) {
+    CHECK(asset_id);
+    CHECK(keys);
+    CHECK(initialized_);
+    *asset_id = 0;
+    keys->clear();
+
+    EcmContainer container;
+    status_t status = container.Parse(buffer);
+    if (status != OK) {
+        return status;
+    }
+    ALOGV("descriptor_size=%zu", container.descriptor_size());
+
+    // Sanity check to verify that the BroadcastEncryptor is sending a properly
+    // formed EcmContainer. If it contains two Ecms, the ids should have different
+    // parity (one odd, one even). This does not necessarily affect decryption
+    // but indicates a problem with Ecm generation.
+    if (container.descriptor_size() == 2) {
+        // XOR the least significant bits to verify different parity.
+        bool same_parity = (((container.descriptor(0).id() & 0x01) ^
+                (container.descriptor(1).id() & 0x01)) == 0);
+        if (same_parity) {
+            ALOGW("asset_id=%" PRIu64 ": malformed Ecm, "
+                    "content keys have same parity, id0=%d, id1=%d",
+                    container.descriptor(0).ecm().asset_id(),
+                    container.descriptor(0).id(),
+                    container.descriptor(1).id());
+        }
+    }
+
+    *asset_id = container.descriptor(0).ecm().asset_id();
+
+    // Detect asset_id change. This could be caused by a configuration change
+    // in the BroadcastEncryptor. This is unusual so log it in case it is an
+    // operational mistake. This invalidates the current asset_key causing a
+    // new license to be fetched.
+    // TODO(rkint): test against BroadcastEncryptor to verify what BE sends on
+    // asset_id change. If it sends an EcmContainer with 2 Ecms with different
+    // asset_ids (old and new) then it might be best to prefetch the Emm.
+    if ((asset_.id() != 0) && (*asset_id != asset_.id())) {
+        ALOGW("Asset_id change from %" PRIu64 " to %" PRIu64, asset_.id(), *asset_id);
+        asset_.Clear();
+    }
+
+    // Fetch license to get asset_id
+    if (!asset_.has_id()) {
+        status = license_fetcher_->FetchLicense(*asset_id, &asset_);
+        if (status != OK) {
+            *asset_id = 0;
+            return status;
+        }
+        ALOGV("FetchLicense succeeded, has_id=%d", asset_.has_id());
+    }
+    keys->resize(container.descriptor_size());
+
+    for (size_t i = 0; i < container.descriptor_size(); ++i) {
+        status = container.mutable_descriptor(i)->mutable_ecm()->Decrypt(
+                container.descriptor(i).ecm().buffer(), asset_);
+        if (status != OK) {
+            *asset_id = 0;
+            keys->clear();
+            return status;
+        }
+        // TODO: if 2 Ecms have same parity, key from Ecm with higher id
+        // should be keys[1].
+        KeyInfo key;
+        key.key_id = container.descriptor(i).id();
+        key.key_bytes = container.descriptor(i).ecm().content_key();
+
+        keys->at(key.key_id & 1) = key;
+    }
+    return OK;
+}
+
+}  // namespace clearkeycas
+}  // namespace android
diff --git a/drm/mediacas/plugins/clearkey/ClearKeyFetcher.h b/drm/mediacas/plugins/clearkey/ClearKeyFetcher.h
new file mode 100644
index 0000000..d58b9df
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ClearKeyFetcher.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CLEAR_KEY_FETCHER_H_
+#define CLEAR_KEY_FETCHER_H_
+
+#include <vector>
+
+#include "protos/license_protos.pb.h"
+
+#include <media/stagefright/foundation/ABase.h>
+#include "KeyFetcher.h"
+
+namespace android {
+namespace clearkeycas {
+
+class LicenseFetcher;
+
+class ClearKeyFetcher : public KeyFetcher {
+public:
+    // ClearKeyFetcher takes ownership of |license_fetcher|.
+    explicit ClearKeyFetcher(
+            std::unique_ptr<LicenseFetcher> license_fetcher);
+
+    virtual ~ClearKeyFetcher();
+
+    // Initializes the fetcher. Must be called before ObtainKey.
+    status_t Init() override;
+
+    // Obtains the |asset_id| and |keys| from the Ecm contained in |ecm|.
+    // Returns
+    // - errors returned by EcmContainer::Parse.
+    // - errors returned by ClassicLicenseFetcher::FetchLicense.
+    // - errors returned by Ecm::Decrypt.
+    // |asset_id| and |keys| are owned by the caller and cannot be null.
+    // Init() must have been called.
+    status_t ObtainKey(const sp<ABuffer>& ecm, uint64_t* asset_id,
+            std::vector<KeyInfo>* keys) override;
+
+private:
+    clearkeycas::Asset asset_;
+    bool initialized_;
+    std::unique_ptr<LicenseFetcher> license_fetcher_;
+
+    DISALLOW_EVIL_CONSTRUCTORS(ClearKeyFetcher);
+};
+
+} // namespace clearkeycas
+} // namespace android
+
+#endif  // CLEAR_KEY_FETCHER_H_
diff --git a/drm/mediacas/plugins/clearkey/ClearKeyLicenseFetcher.cpp b/drm/mediacas/plugins/clearkey/ClearKeyLicenseFetcher.cpp
new file mode 100644
index 0000000..603337d
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ClearKeyLicenseFetcher.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ClearKeyLicenseFetcher"
+
+#include "ClearKeyLicenseFetcher.h"
+#include "protos/license_protos.pb.h"
+
+#include <utils/Log.h>
+#include <utils/String8.h>
+#include "JsonAssetLoader.h"
+
+namespace android {
+namespace clearkeycas {
+
+status_t ClearKeyLicenseFetcher::Init(const char *input) {
+    JsonAssetLoader *extractor = new JsonAssetLoader();
+    return extractor->extractAssetFromString(String8(input), &asset_);
+}
+
+status_t ClearKeyLicenseFetcher::FetchLicense(
+        uint64_t /* asset_id */, Asset* asset) {
+    *asset = asset_;
+    return OK;
+}
+
+}  // namespace clearkeycas
+}  // namespace android
diff --git a/drm/mediacas/plugins/clearkey/ClearKeyLicenseFetcher.h b/drm/mediacas/plugins/clearkey/ClearKeyLicenseFetcher.h
new file mode 100644
index 0000000..ebbcbeb
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ClearKeyLicenseFetcher.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CLEAR_KEY_LICENSE_FETCHER_H_
+#define CLEAR_KEY_LICENSE_FETCHER_H_
+
+#include "KeyFetcher.h"
+#include "LicenseFetcher.h"
+
+namespace android {
+namespace clearkeycas {
+
+class ClearKeyLicenseFetcher : public LicenseFetcher {
+public:
+    ClearKeyLicenseFetcher() {}
+    virtual ~ClearKeyLicenseFetcher() {}
+
+    virtual status_t Init(const char *input);
+
+    virtual status_t FetchLicense(uint64_t asset_id, Asset* asset);
+
+private:
+    Asset asset_;
+};
+
+} // namespace clearkeycas
+} // namespace android
+
+#endif  // CLEAR_KEY_LICENSE_FETCHER_H_
diff --git a/drm/mediacas/plugins/clearkey/ClearKeySessionLibrary.cpp b/drm/mediacas/plugins/clearkey/ClearKeySessionLibrary.cpp
new file mode 100644
index 0000000..faea008
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ClearKeySessionLibrary.cpp
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ClearKeySessionLibrary"
+#include <utils/Log.h>
+
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/ADebug.h>
+
+#include "ClearKeySessionLibrary.h"
+
+namespace android {
+namespace clearkeycas {
+
+Mutex ClearKeySessionLibrary::sSingletonLock;
+ClearKeySessionLibrary* ClearKeySessionLibrary::sSingleton = NULL;
+
+ClearKeyCasSession::ClearKeyCasSession(CasPlugin *plugin)
+    : mPlugin(plugin) {
+    mKeyInfo[0].valid = mKeyInfo[1].valid = false;
+}
+
+ClearKeyCasSession::~ClearKeyCasSession() {
+}
+
+ClearKeySessionLibrary* ClearKeySessionLibrary::get() {
+    Mutex::Autolock lock(sSingletonLock);
+
+    if (sSingleton == NULL) {
+        ALOGV("Instantiating Session Library Singleton.");
+        sSingleton = new ClearKeySessionLibrary();
+    }
+
+    return sSingleton;
+}
+
+ClearKeySessionLibrary::ClearKeySessionLibrary() : mNextSessionId(1) {}
+
+status_t ClearKeySessionLibrary::addSession(
+        CasPlugin *plugin, CasSessionId *sessionId) {
+    CHECK(sessionId);
+
+    Mutex::Autolock lock(mSessionsLock);
+
+    sp<ClearKeyCasSession> session = new ClearKeyCasSession(plugin);
+
+    uint8_t *byteArray = (uint8_t *) &mNextSessionId;
+    sessionId->push_back(byteArray[3]);
+    sessionId->push_back(byteArray[2]);
+    sessionId->push_back(byteArray[1]);
+    sessionId->push_back(byteArray[0]);
+    mNextSessionId++;
+
+    mIDToSessionMap.add(*sessionId, session);
+    return OK;
+}
+
+sp<ClearKeyCasSession> ClearKeySessionLibrary::findSession(
+        const CasSessionId& sessionId) {
+    Mutex::Autolock lock(mSessionsLock);
+
+    ssize_t index = mIDToSessionMap.indexOfKey(sessionId);
+    if (index < 0) {
+        return NULL;
+    }
+    return mIDToSessionMap.valueFor(sessionId);
+}
+
+void ClearKeySessionLibrary::destroySession(const CasSessionId& sessionId) {
+    Mutex::Autolock lock(mSessionsLock);
+
+    ssize_t index = mIDToSessionMap.indexOfKey(sessionId);
+    if (index < 0) {
+        return;
+    }
+
+    sp<ClearKeyCasSession> session = mIDToSessionMap.valueAt(index);
+    mIDToSessionMap.removeItemsAt(index);
+}
+
+void ClearKeySessionLibrary::destroyPlugin(CasPlugin *plugin) {
+    Mutex::Autolock lock(mSessionsLock);
+
+    for (ssize_t index = mIDToSessionMap.size() - 1; index >= 0; index--) {
+        sp<ClearKeyCasSession> session = mIDToSessionMap.valueAt(index);
+        if (session->getPlugin() == plugin) {
+            mIDToSessionMap.removeItemsAt(index);
+        }
+    }
+}
+
+} // namespace clearkeycas
+} // namespace android
diff --git a/drm/mediacas/plugins/clearkey/ClearKeySessionLibrary.h b/drm/mediacas/plugins/clearkey/ClearKeySessionLibrary.h
new file mode 100644
index 0000000..01f5f47
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ClearKeySessionLibrary.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CLEARKEY_SESSION_LIBRARY_H_
+#define CLEARKEY_SESSION_LIBRARY_H_
+
+#include <media/cas/CasAPI.h>
+#include <media/cas/DescramblerAPI.h>
+#include <openssl/aes.h>
+#include <utils/KeyedVector.h>
+#include <utils/Mutex.h>
+#include <utils/RefBase.h>
+
+namespace android {
+struct ABuffer;
+
+namespace clearkeycas {
+class KeyFetcher;
+
+class ClearKeyCasSession : public RefBase {
+public:
+    ssize_t decrypt(
+            bool secure,
+            DescramblerPlugin::ScramblingControl scramblingControl,
+            size_t numSubSamples,
+            const DescramblerPlugin::SubSample *subSamples,
+            const void *srcPtr,
+            void *dstPtr,
+            AString * /* errorDetailMsg */);
+
+    status_t updateECM(KeyFetcher *keyFetcher, void *ecm, size_t size);
+
+private:
+    enum {
+        kNumKeys = 2,
+    };
+    struct KeyInfo {
+        bool valid;
+        AES_KEY contentKey;
+    };
+    sp<ABuffer> mEcmBuffer;
+    Mutex mKeyLock;
+    CasPlugin* mPlugin;
+    KeyInfo mKeyInfo[kNumKeys];
+
+    friend class ClearKeySessionLibrary;
+
+    explicit ClearKeyCasSession(CasPlugin *plugin);
+    virtual ~ClearKeyCasSession();
+    CasPlugin* getPlugin() const { return mPlugin; }
+    status_t decryptPayload(
+            const AES_KEY& key, size_t length, size_t offset, char* buffer) const;
+
+    DISALLOW_EVIL_CONSTRUCTORS(ClearKeyCasSession);
+};
+
+class ClearKeySessionLibrary {
+public:
+    static ClearKeySessionLibrary* get();
+
+    status_t addSession(CasPlugin *plugin, CasSessionId *sessionId);
+
+    sp<ClearKeyCasSession> findSession(const CasSessionId& sessionId);
+
+    void destroySession(const CasSessionId& sessionId);
+
+    void destroyPlugin(CasPlugin *plugin);
+
+private:
+    static Mutex sSingletonLock;
+    static ClearKeySessionLibrary* sSingleton;
+
+    Mutex mSessionsLock;
+    uint32_t mNextSessionId;
+    KeyedVector<CasSessionId, sp<ClearKeyCasSession>> mIDToSessionMap;
+
+    ClearKeySessionLibrary();
+    DISALLOW_EVIL_CONSTRUCTORS(ClearKeySessionLibrary);
+};
+
+} // namespace clearkeycas
+} // namespace android
+
+#endif // CLEARKEY_SESSION_LIBRARY_H_
diff --git a/drm/mediacas/plugins/clearkey/JsonAssetLoader.cpp b/drm/mediacas/plugins/clearkey/JsonAssetLoader.cpp
new file mode 100644
index 0000000..9cd77e9
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/JsonAssetLoader.cpp
@@ -0,0 +1,234 @@
+
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//#define LOG_NDEBUG 0
+#define LOG_TAG "JsonAssetLoader"
+
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/foundation/base64.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/Log.h>
+
+#include "JsonAssetLoader.h"
+#include "protos/license_protos.pb.h"
+
+namespace android {
+namespace clearkeycas {
+
+const String8 kIdTag("id");
+const String8 kNameTag("name");
+const String8 kLowerCaseOgranizationNameTag("lowercase_organization_name");
+const String8 kEncryptionKeyTag("encryption_key");
+const String8 kCasTypeTag("cas_type");
+const String8 kBase64Padding("=");
+
+const uint32_t kKeyLength = 16;
+
+JsonAssetLoader::JsonAssetLoader() {
+}
+
+JsonAssetLoader::~JsonAssetLoader() {
+}
+
+/*
+ * Extract a clear key asset from a JSON string.
+ *
+ * Returns OK if a clear key asset is extracted successfully,
+ * or ERROR_DRM_NO_LICENSE if the string doesn't contain a valid
+ * clear key asset.
+ */
+status_t JsonAssetLoader::extractAssetFromString(
+        const String8& jsonAssetString, Asset *asset) {
+    if (!parseJsonAssetString(jsonAssetString, &mJsonObjects)) {
+        return ERROR_DRM_NO_LICENSE;
+    }
+
+    if (mJsonObjects.size() < 1) {
+        return ERROR_DRM_NO_LICENSE;
+    }
+
+    if (!parseJsonObject(mJsonObjects[0], &mTokens))
+        return ERROR_DRM_NO_LICENSE;
+
+    if (!findKey(mJsonObjects[0], asset)) {
+        return ERROR_DRM_NO_LICENSE;
+    }
+    return OK;
+}
+
+//static
+sp<ABuffer> JsonAssetLoader::decodeBase64String(const String8& encodedText) {
+    // Since android::decodeBase64() requires padding characters,
+    // add them so length of encodedText is exactly a multiple of 4.
+    int remainder = encodedText.length() % 4;
+    String8 paddedText(encodedText);
+    if (remainder > 0) {
+        for (int i = 0; i < 4 - remainder; ++i) {
+            paddedText.append(kBase64Padding);
+        }
+    }
+
+    return decodeBase64(AString(paddedText.string()));
+}
+
+bool JsonAssetLoader::findKey(const String8& jsonObject, Asset *asset) {
+
+    String8 value;
+
+    if (jsonObject.find(kIdTag) < 0) {
+        return false;
+    }
+    findValue(kIdTag, &value);
+    ALOGV("found %s=%s", kIdTag.string(), value.string());
+    asset->set_id(atoi(value.string()));
+
+    if (jsonObject.find(kNameTag) < 0) {
+        return false;
+    }
+    findValue(kNameTag, &value);
+    ALOGV("found %s=%s", kNameTag.string(), value.string());
+    asset->set_name(value.string());
+
+    if (jsonObject.find(kLowerCaseOgranizationNameTag) < 0) {
+        return false;
+    }
+    findValue(kLowerCaseOgranizationNameTag, &value);
+    ALOGV("found %s=%s", kLowerCaseOgranizationNameTag.string(), value.string());
+    asset->set_lowercase_organization_name(value.string());
+
+    if (jsonObject.find(kCasTypeTag) < 0) {
+        return false;
+    }
+    findValue(kCasTypeTag, &value);
+    ALOGV("found %s=%s", kCasTypeTag.string(), value.string());
+    // Asset_CasType_CLEARKEY_CAS = 1
+    asset->set_cas_type((Asset_CasType)atoi(value.string()));
+
+    return true;
+}
+
+void JsonAssetLoader::findValue(const String8 &key, String8* value) {
+    value->clear();
+    const char* valueToken;
+    for (Vector<String8>::const_iterator nextToken = mTokens.begin();
+        nextToken != mTokens.end(); ++nextToken) {
+        if (0 == (*nextToken).compare(key)) {
+            if (nextToken + 1 == mTokens.end())
+                break;
+            valueToken = (*(nextToken + 1)).string();
+            value->setTo(valueToken);
+            nextToken++;
+            break;
+        }
+    }
+}
+
+/*
+ * Parses a JSON objects string and initializes a vector of tokens.
+ *
+ * @return Returns false for errors, true for success.
+ */
+bool JsonAssetLoader::parseJsonObject(const String8& jsonObject,
+        Vector<String8>* tokens) {
+    jsmn_parser parser;
+
+    jsmn_init(&parser);
+    int numTokens = jsmn_parse(&parser,
+        jsonObject.string(), jsonObject.size(), NULL, 0);
+    if (numTokens < 0) {
+        ALOGE("Parser returns error code=%d", numTokens);
+        return false;
+    }
+
+    unsigned int jsmnTokensSize = numTokens * sizeof(jsmntok_t);
+    mJsmnTokens.clear();
+    mJsmnTokens.setCapacity(jsmnTokensSize);
+
+    jsmn_init(&parser);
+    int status = jsmn_parse(&parser, jsonObject.string(),
+        jsonObject.size(), mJsmnTokens.editArray(), numTokens);
+    if (status < 0) {
+        ALOGE("Parser returns error code=%d", status);
+        return false;
+    }
+
+    tokens->clear();
+    String8 token;
+    const char *pjs;
+    ALOGV("numTokens: %d", numTokens);
+    for (int j = 0; j < numTokens; ++j) {
+        pjs = jsonObject.string() + mJsmnTokens[j].start;
+        if (mJsmnTokens[j].type == JSMN_STRING ||
+                mJsmnTokens[j].type == JSMN_PRIMITIVE) {
+            token.setTo(pjs, mJsmnTokens[j].end - mJsmnTokens[j].start);
+            tokens->add(token);
+            ALOGV("add token: %s", token.string());
+        }
+    }
+    return true;
+}
+
+/*
+ * Parses JSON asset string and initializes a vector of JSON objects.
+ *
+ * @return Returns false for errors, true for success.
+ */
+bool JsonAssetLoader::parseJsonAssetString(const String8& jsonAsset,
+        Vector<String8>* jsonObjects) {
+    if (jsonAsset.isEmpty()) {
+        ALOGE("Empty JSON Web Key");
+        return false;
+    }
+
+    // The jsmn parser only supports unicode encoding.
+    jsmn_parser parser;
+
+    // Computes number of tokens. A token marks the type, offset in
+    // the original string.
+    jsmn_init(&parser);
+    int numTokens = jsmn_parse(&parser,
+            jsonAsset.string(), jsonAsset.size(), NULL, 0);
+    if (numTokens < 0) {
+        ALOGE("Parser returns error code=%d", numTokens);
+        return false;
+    }
+
+    unsigned int jsmnTokensSize = numTokens * sizeof(jsmntok_t);
+    mJsmnTokens.setCapacity(jsmnTokensSize);
+
+    jsmn_init(&parser);
+    int status = jsmn_parse(&parser, jsonAsset.string(),
+            jsonAsset.size(), mJsmnTokens.editArray(), numTokens);
+    if (status < 0) {
+        ALOGE("Parser returns error code=%d", status);
+        return false;
+    }
+
+    String8 token;
+    const char *pjs;
+    for (int i = 0; i < numTokens; ++i) {
+        pjs = jsonAsset.string() + mJsmnTokens[i].start;
+        if (mJsmnTokens[i].type == JSMN_OBJECT) {
+            token.setTo(pjs, mJsmnTokens[i].end - mJsmnTokens[i].start);
+            jsonObjects->add(token);
+        }
+    }
+    return true;
+}
+
+}  // namespace clearkeycas
+}  // namespace android
diff --git a/drm/mediacas/plugins/clearkey/JsonAssetLoader.h b/drm/mediacas/plugins/clearkey/JsonAssetLoader.h
new file mode 100644
index 0000000..06f9389
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/JsonAssetLoader.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef JSON_ASSET_LOADER_H_
+#define JSON_ASSET_LOADER_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/StrongPointer.h>
+#include "protos/license_protos.pb.h"
+
+#include "jsmn.h"
+
+namespace android {
+struct ABuffer;
+
+namespace clearkeycas {
+
+class JsonAssetLoader {
+ public:
+    JsonAssetLoader();
+    virtual ~JsonAssetLoader();
+
+    status_t extractAssetFromString(
+            const String8& jsonAssetString, Asset *asset);
+
+ private:
+    Vector<jsmntok_t> mJsmnTokens;
+    Vector<String8> mJsonObjects;
+    Vector<String8> mTokens;
+
+    static sp<ABuffer> decodeBase64String(
+            const String8& encodedText);
+    bool findKey(const String8& jsonObject, Asset *asset);
+    void findValue(
+            const String8 &key, String8* value);
+    bool parseJsonObject(
+            const String8& jsonObject, Vector<String8>* tokens);
+    bool parseJsonAssetString(
+            const String8& jsonString, Vector<String8>* jsonObjects);
+
+    DISALLOW_EVIL_CONSTRUCTORS(JsonAssetLoader);
+};
+
+}  // namespace clearkeycas
+}  // namespace android
+
+#endif  // JSON_ASSET_LOADER_H_
diff --git a/drm/mediacas/plugins/clearkey/KeyFetcher.h b/drm/mediacas/plugins/clearkey/KeyFetcher.h
new file mode 100644
index 0000000..83fe50a
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/KeyFetcher.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef KEY_FETCHER_H_
+#define KEY_FETCHER_H_
+
+#include <vector>
+
+#include <media/stagefright/foundation/ABuffer.h>
+#include <utils/Errors.h>
+
+using namespace std;
+
+namespace android {
+namespace clearkeycas {
+
+// Interface for classes which extract the content key from an Ecm.
+class KeyFetcher {
+public:
+    struct KeyInfo {
+        sp<ABuffer> key_bytes;
+        int key_id;
+    };
+
+    KeyFetcher() {}
+    virtual ~KeyFetcher() {}
+
+    // Initializes resources set in subclass-specific calls. This must be called
+    // before threads are started.
+    virtual status_t Init() = 0;
+
+    // Obtains content key(s) based on contents of |ecm|. |asset_id| is the
+    // internal id of the asset, |keys| is a vector containing instances of a
+    // class containing a content key and an id. |asset_id| and |keys| are
+    // owned by the caller and must be non-null.
+    virtual status_t ObtainKey(const sp<ABuffer>& ecm,
+            uint64_t* asset_id, vector<KeyInfo>* keys) = 0;
+};
+
+}  // namespace clearkeycas
+}  // namespace android
+
+#endif  // KEY_FETCHER_H_
diff --git a/drm/mediacas/plugins/clearkey/LicenseFetcher.h b/drm/mediacas/plugins/clearkey/LicenseFetcher.h
new file mode 100644
index 0000000..2a33dd8
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/LicenseFetcher.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LICENSE_FETCHER_H_
+#define LICENSE_FETCHER_H_
+
+#include "protos/license_protos.pb.h"
+#include <media/stagefright/foundation/ABase.h>
+
+namespace android {
+namespace clearkeycas {
+
+// Interface for classes which request a license.
+class LicenseFetcher {
+public:
+    LicenseFetcher() {}
+    virtual ~LicenseFetcher() {}
+
+    // Initializes resources set in subclass-specific calls. This must be called
+    // before threads are started.
+    virtual status_t Init(const char *input) = 0;
+
+    // Fetches license based on |asset_id|.  On return, |asset| contains the
+    // decrypted asset_key needed to decrypt content keys.
+    // |asset| must be non-null.
+    virtual status_t FetchLicense(
+            uint64_t asset_id, clearkeycas::Asset* asset) = 0;
+
+private:
+    DISALLOW_EVIL_CONSTRUCTORS(LicenseFetcher);
+};
+
+}  // namespace clearkeycas
+}  // namespace android
+
+#endif  // LICENSE_FETCHER_H_
diff --git a/drm/mediacas/plugins/clearkey/ecm.cpp b/drm/mediacas/plugins/clearkey/ecm.cpp
new file mode 100644
index 0000000..9fde13a
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ecm.cpp
@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ecm"
+
+#include "ecm.h"
+#include "ecm_generator.h"
+#include "protos/license_protos.pb.h"
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/Log.h>
+
+namespace android {
+namespace clearkeycas {
+
+Ecm::Ecm()
+    : asset_id_(0),
+      asset_id_set_(false),
+      system_id_(0),
+      system_id_set_(false) {}
+
+Ecm::~Ecm() {}
+
+status_t Ecm::Parse(const sp<ABuffer>& buffer_as_binary) {
+    if (buffer_as_binary->size() < kSizeBytes) {
+        ALOGE("Short Ecm buffer: expected %zu, received %zu.",
+                kSizeBytes, buffer_as_binary->size());
+        return BAD_VALUE;
+    }
+
+    Asset asset;
+    ecm_generator::DefaultEcmFields default_fields;
+    status_t status = ecm_generator::DecodeECMClearFields(
+            buffer_as_binary, &asset, &default_fields);
+    if (status != OK) {
+        ALOGE("DecodeECMClearFields failed with status %d", status);
+        return status;
+    }
+    set_asset_id(asset.id());
+    set_system_id(default_fields.system_id);
+
+    // Save a copy of the buffer_as_binary for a future DecryptEcm call.
+    set_buffer(buffer_as_binary);
+    return OK;
+}
+
+status_t Ecm::Decrypt(
+        const sp<ABuffer>& buffer_as_binary,
+        const Asset& asset_from_emm) {
+    // Invariant: asset has id. These are postconditions for Emm::Decrypt().
+    CHECK(asset_from_emm.has_id());
+
+    // DecodeEcm fills in |asset|.id() with the asset_id from the encoded Ecm.
+    Asset asset(asset_from_emm);
+    ecm_generator::DefaultEcmFields default_fields;
+    sp<ABuffer> content_key;
+    status_t status = ecm_generator::DecodeECM(
+            buffer_as_binary, &asset, &content_key, &default_fields);
+    if (status != OK) {
+        ALOGE("DecodeECM failed with status %d", status);
+        return status;
+    }
+    if (asset.id() != asset_from_emm.id()) {
+        ALOGE("Asset_id from Emm (%llu) does not match asset_id from Ecm (%llu).",
+                asset_from_emm.id(), asset.id());
+        return CLEARKEY_STATUS_INVALID_PARAMETER;
+    }
+    set_asset_id(asset.id());
+    set_system_id(default_fields.system_id);
+    set_content_key(content_key);
+    return status;
+}
+
+EcmDescriptor::EcmDescriptor() : ecm_set_(false), id_(0), id_set_(false) {}
+
+EcmDescriptor::EcmDescriptor(uint16_t id, const Ecm& ecm)
+: ecm_(ecm), ecm_set_(true), id_(id), id_set_(true) {}
+
+EcmDescriptor::~EcmDescriptor() {}
+
+status_t EcmDescriptor::Parse(const sp<ABuffer>& buffer_as_binary) {
+    if (buffer_as_binary->size() < kSizeBytes) {
+        ALOGE("Short EcmDescriptor buffer: expected %zu, received %zu.",
+                kSizeBytes, buffer_as_binary->size());
+        return BAD_VALUE;
+    }
+    sp<ABuffer> id_buffer = new ABuffer(buffer_as_binary->data(), kIdSizeBytes);
+    const uint8_t *id_bytes = id_buffer->data();
+    uint16_t id = (id_bytes[0] << 8) | id_bytes[1];
+    set_id(id);
+
+    // Unmarshall the contained Ecm.
+    sp<ABuffer> ecm_buffer = new ABuffer(
+            buffer_as_binary->data() + kIdSizeBytes, Ecm::kSizeBytes);
+    status_t status = mutable_ecm()->Parse(ecm_buffer);
+    if (status != OK) {
+        return status;
+    }
+    return OK;
+}
+
+EcmContainer::EcmContainer() : count_(0), count_set_(false) {}
+
+EcmContainer::~EcmContainer() {}
+
+status_t EcmContainer::Add(const EcmDescriptor& descriptor) {
+    switch (count_) {
+    case 0:
+        descriptor_[0] = descriptor;
+        count_ = 1;
+        break;
+    case 1:
+        descriptor_[1] = descriptor;
+        count_ = 2;
+        break;
+    case 2:
+        descriptor_[0] = descriptor_[1];
+        descriptor_[1] = descriptor;
+        break;
+    default:
+        ALOGE("Bad state.");
+        return INVALID_OPERATION;
+    }
+    count_set_ = true;
+    return OK;
+}
+
+status_t EcmContainer::Parse(const sp<ABuffer>& buffer_as_binary) {
+    // EcmContainer can contain 1 or 2 EcmDescriptors so this is a check for
+    // minimum size.
+    if (buffer_as_binary->size() < kMinimumSizeBytes) {
+        ALOGE("Short EcmContainer buffer: expected >= %zu, received %zu.",
+                kMinimumSizeBytes, buffer_as_binary->size());
+        return BAD_VALUE;
+    }
+
+    sp<ABuffer> count_buffer = new ABuffer(
+            buffer_as_binary->data(), kCountSizeBytes);
+    const uint8_t *count_bytes = count_buffer->data();
+    size_t count = (count_bytes[0] << 8) | count_bytes[1];
+    // Check that count is a legal value.
+    if (!CountLegal(count)) {
+        ALOGE("Invalid descriptor count: expected %zu <= count <= %zu, received %zu.",
+                kMinDescriptorCount, kMaxDescriptorCount, count);
+        return ERROR_OUT_OF_RANGE;
+    }
+    // If needed, check that buffer_as_binary can hold 2 EcmDescriptors.
+    if (count > kMinDescriptorCount) {
+        size_t expected_bytes =
+                kCountSizeBytes + (count * EcmDescriptor::kSizeBytes);
+        if (buffer_as_binary->size() < expected_bytes) {
+            ALOGE("Short EcmContainer buffer: expected %zu, received %zu.",
+                    expected_bytes, buffer_as_binary->size());
+            return BAD_VALUE;
+        }
+    }
+    set_count(count);
+    // Unmarshall the contained EcmDescriptors.
+    size_t offset = kCountSizeBytes;
+    for (size_t i = 0; i < count_; ++i) {
+        sp<ABuffer> descriptor_buffer = new ABuffer(
+                buffer_as_binary->data() + offset, EcmDescriptor::kSizeBytes);
+        status_t status = mutable_descriptor(i)->Parse(descriptor_buffer);
+        if (status != OK) {
+            return status;
+        }
+        offset += EcmDescriptor::kSizeBytes;
+    }
+    return OK;
+}
+
+}  // namespace clearkeycas
+}  // namespace android
diff --git a/drm/mediacas/plugins/clearkey/ecm.h b/drm/mediacas/plugins/clearkey/ecm.h
new file mode 100644
index 0000000..aef8afb
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ecm.h
@@ -0,0 +1,343 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Data objects encapsulating the clear key Ecm (Entitlement Control
+// Message) and related container messages. Deserialization and decryption
+// are handled externally to reduce build-time dependencies.
+//
+// Simplified typical client-side use:
+//   Asset asset; // from the AssetRegistry.
+//   uint8[] ecm_buffer; // received over network, contains an EcmContainer.
+//   EcmContainer ecm_container;
+//   util::Status status = ecm_container.Parse(ecm_buffer);
+//   status = ecm_container.descriptor(1).ecm().Decrypt(
+//      ecm_container.descriptor(1).ecm().buffer(), asset_key);
+//   string content_key;
+//   if (ecm_container.descriptor(1).ecm().has_content_key()) {
+//     content_key = ecm_container.descriptor(1).ecm().content_key();
+//   }
+//   // use |content_key| to decrypt content.
+//
+// Simplified typical server-side use:
+//   EcmContainer container;
+//   string encoded_ecm;
+//   // Use the ecm_generator API to encode and encrypt an ECM from data fields.
+//   util::Status status = ecm_generator::EncodeECM(..., &encoded_ecm);
+//   // Use |encoded_ecm| to initialized the Ecm from this library.
+//   Ecm ecm;
+//   util::Status status = ecm.Parse(encoded_ecm);
+//   EcmDescriptor descriptor(crypto_period_id, ecm);
+//   status = container.Add(descriptor);
+//   string serialized_container;
+//   status = container.Marshall(&serialized_container);
+//   // now |serialized_container| can be sent to the STB.
+//
+// Due to past overloading of the term "ECM" this library introduces some
+// new terminology.
+//
+// Ecm: the 32-byte message sent from the head end to a packager that contains
+// the asset_id, system_id, and content_key (clear).
+//
+// EcmDescriptor: contains an Ecm and an id (the crypto period id in the case
+// of the BroadcastEncryptor). It contains no encrypted fields.
+//
+// EcmContainer: sent by the server in the video stream using the ECM pid.
+// This contains 1 or 2 EcmDescriptors and a count. It contains no
+// encrypted fields.
+//
+// The first EcmContainer sent by the server has only one EcmDescriptor. After
+// the first crypto period change, an EcmContainer contains 2 EcmDescriptors.
+// One has an odd id and one has an even id. The decrypted content keys from the
+// Ecms in the EcmDescriptors are used by the Mpeg2 parser as odd and even
+// scrambling keys. As the crypto period changes, the oldest EcmDescriptor is
+// dropped from the EcmContainer and the new EcmDescriptor is added.
+//
+// These classes use a simplified protobuf model. For non-repeating fields,
+// - has_foo() indicates whether the field is populated.
+// - the accessor foo() returns either a value or a const reference.
+// - a mutator sets the value.  Primitive types and strings use
+//   set_foo(value) while for objects mutable_foo() returns a pointer.
+//
+// To prevent null references, objects (like the Asset contained in an Emm)
+// are allocated as members and can be accessed via foo() even if they have
+// not been populated. The caller must call has_foo() to make sure that the
+// object is valid. Calling mutable_foo() to obtain a pointer causes has_foo()
+// to return true.
+//
+// Repeated fields (like the EcmDescriptors contained in an EcmContainer) are
+// handled differently.
+// - foo_size() returns the number of instances.
+// - the accessor foo(index) returns either a value or a const reference to
+//   the instance at index. It is illegal to call with |index| >= the value
+//   returned by foo_size(). |index| is checked with CHECK.
+// - a mutator to change the value of the instance.  Primitive types and
+//   strings use set_foo(index, value) while for objects mutable_foo(index)
+//   returns a pointer. It is illegal to call with |index| >= the value
+//   returned by foo_size(). |index| is checked with CHECK.
+//
+// Accessing a repeated field with an invalid index causes CHECK to fail.
+// Be sure to call EcmContainer::decriptor_size() before calling descriptor()
+// or mutable_descriptor()!
+//
+#ifndef CLEAR_KEY_ECM_H_
+#define CLEAR_KEY_ECM_H_
+
+#include <stddef.h>
+#include <string>
+
+#include "protos/license_protos.pb.h"
+
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/foundation/ABuffer.h>
+#include <utils/Errors.h>
+
+using namespace std;
+
+namespace android {
+namespace clearkeycas {
+
+// Entitlement Control Message. It contains clear fields. The asset_id
+// and system_id as well as the content_key are clear.
+//
+// This class is not thread-safe.
+class Ecm {
+public:
+    // Wire size of ECM.
+    static constexpr size_t kSizeBytes = 16 + 16; // clear fields + clear key
+
+    // Creates an empty ECM which must be initialized via Parse().
+    Ecm();
+
+    ~Ecm();
+
+    // Parses clear fields of Ecm serialized in |buffer_as_binary| and saves
+    // a copy of |buffer_as_binary| for a future DecryptEcm call.
+    // Returns:
+    // - BAD_VALUE if |buffer_as_binary| is too small.
+    // - CLEARKEY_STATUS_INVALIDASSETID via ecm_generator::DecodeEcmClearFields if
+    //   asset_id is 0.
+    // - CLEARKEY_STATUS_INVALIDSYSTEMID via ecm_generator::DecodeEcmClearFields if
+    //   system_id is 0.
+    // Postconditions:
+    // - |asset_id_| and |system_id_| are populated with non-zero values.
+    // - |buffer_| contains a copy of the serialized Ecm.
+    status_t Parse(const sp<ABuffer>& buffer_as_binary);
+
+    // Parses and decrypts Ecm serialized in |buffer_as_binary| using
+    // |asset_from_emm|.asset_key().encryption_key(). It is not necessary to call
+    // Parse() first.
+    // Returns BAD_VALUE if |buffer_as_binary| is too small.
+    // Returns CLEARKEY_STATUS_INVALIDASSETID via
+    //   ecm_generator::DecodeEcmClearFields if asset_id is 0.
+    // Returns CLEARKEY_STATUS_INVALIDSYSTEMID via
+    //   ecm_generator::DecodeEcmClearFields if system_id is 0.
+    // Returns CLEARKEY_STATUS_INVALID_PARAMETER if
+    // - asset_id in |asset_from_emm| does not match asset_id in serialized Ecm.
+    // Preconditions: |asset_from_emm| must contain asset_id and asset_key fields.
+    // Postconditions: asset_id() and system_id() are populated with non-zero
+    // values, content_key() is populated with the clear content key.
+    status_t Decrypt(const sp<ABuffer>& buffer_as_binary,
+            const Asset& asset_from_emm);
+
+    // |buffer_| is a serialized copy of the Ecm used for later decryption or
+    // for marshalling.
+    inline bool has_buffer() const { return buffer_ != NULL; }
+    const sp<ABuffer> buffer() const { return buffer_; }
+    inline void set_buffer(const sp<ABuffer>& buffer) {
+        buffer_ = ABuffer::CreateAsCopy(buffer->data(), buffer->size());
+    }
+
+    // |content_key| is the clear, encryption/decryption key generated by the server.
+    inline bool has_content_key() const { return content_key_ != NULL; }
+    inline void set_content_key(const sp<ABuffer>& value) {
+        content_key_ = ABuffer::CreateAsCopy(value->data(), value->size());
+    }
+    inline const sp<ABuffer> content_key() const { return content_key_; }
+
+    // |asset_id| from the server.
+    inline bool has_asset_id() const { return asset_id_set_; }
+    inline uint64_t asset_id() const { return asset_id_; }
+    inline void set_asset_id(uint64_t value) {
+        asset_id_ = value;
+        asset_id_set_ = true;
+    }
+
+    // |system_id| from the server.
+    inline bool has_system_id() const { return system_id_set_; }
+    inline uint32_t system_id() const { return system_id_; }
+    inline void set_system_id(uint32_t value) {
+        system_id_ = value;
+        system_id_set_ = true;
+    }
+
+private:
+    uint64_t asset_id_;
+    bool asset_id_set_;
+    sp<ABuffer> buffer_;
+    sp<ABuffer> content_key_;
+    uint32_t system_id_;
+    bool system_id_set_;
+};
+
+// Contains an Ecm and and Id.
+// This class is not thread-safe.
+class EcmDescriptor {
+public:
+    // Wire size of Id field.
+    static constexpr size_t kIdSizeBytes = sizeof(uint16_t);
+    // Wire size of EcmDescriptor.
+    static constexpr size_t kSizeBytes = Ecm::kSizeBytes + kIdSizeBytes;
+
+    // Client-side ctor. Populate from a buffer with Parse().
+    EcmDescriptor();
+
+    // Server-side ctor.
+    // Args:
+    // - |id| is the crypto period ID.
+    // - |ecm| is an ECM which must have been intialized with Ecm::Parse().
+    EcmDescriptor(uint16_t id, const Ecm& ecm);
+
+    ~EcmDescriptor();
+
+    // Parses EcmDescriptor and its contained Ecm which are serialized in the
+    // binary string |buffer_as_binary|.
+    // Returns
+    // - BAD_VALUE if |buffer_as_binary| is too short to contain a
+    //   serialized EcmDescriptor.
+    // - Errors returned by Ecm::Parse.
+    // Postconditions:
+    // - id() is populated. Note that 0 is a legal value.
+    // - the clear fields of the contained Ecm have been populated.
+    status_t Parse(const sp<ABuffer>& buffer_as_binary);
+
+    // |id| of the contained Ecm. Typically the crypto period id.
+    inline bool has_id() const { return id_set_; }
+    inline void set_id(uint16_t value) {
+        id_ = value;
+        id_set_ = true;
+    }
+    inline uint16_t id() const { return id_; }
+
+    // The contained |ecm|.
+    inline bool has_ecm() const { return ecm_set_; }
+    inline Ecm* mutable_ecm() {
+        ecm_set_ = true;
+        return &ecm_;
+    }
+    inline const Ecm& ecm() const { return ecm_; }
+
+private:
+    Ecm ecm_;
+    bool ecm_set_;
+    uint16_t id_;
+    bool id_set_;
+};
+
+// Contains a count and 1 or 2 EcmDescriptors. This is included in the video
+// stream by the sender in the ECM pid.
+// This class is not thread-safe.
+class EcmContainer {
+public:
+    // Wire size of the count field.
+    static constexpr size_t kCountSizeBytes = sizeof(uint16_t);
+    // Minimum wire size assuming one EcmDescriptor.
+    static constexpr size_t kMinimumSizeBytes =
+            EcmDescriptor::kSizeBytes + kCountSizeBytes;
+    static constexpr size_t kMinDescriptorCount = 1;
+    static constexpr size_t kMaxDescriptorCount = 2;
+
+    // Creates an empty EcmContainer which must be populated via Parse()
+    // (client-side) or Add() (server-side).
+    EcmContainer();
+
+    ~EcmContainer();
+
+    // Adds an EcmDescriptor for server-side applications.
+    // If |count_| is 2, |descriptor| replaces the oldest EcmDescriptor.
+    //
+    // Returns:
+    // - INTERNAL if the EcmContainer is in a bad state (count != 0, 1, or 2).
+    // Postconditions:
+    // - count() is within bounds (1 or 2).
+    status_t Add(const EcmDescriptor& descriptor);
+
+    // Parses EcmContainer and its contained EcmDescriptors which are serialized
+    // in |buffer_as_binary|.
+    // Returns
+    // - BAD_VALUE if |buffer_as_binary| is too short to contain a
+    //   serialized EcmDescriptor.
+    // - ERROR_OUT_OF_RANGE if the count contained in the serialized EcmContainer
+    //   is not 1 or 2.
+    // - Errors returned by EcmDescriptor::Parse.
+    // Postconditions:
+    // - count() is within bounds (1 or 2) and.
+    // - contained EcmDescriptor(s) parsed and populated.
+    status_t Parse(const sp<ABuffer>& buffer_as_binary);
+
+    inline bool has_count() const { return count_set_; }
+    // Sets the |count| of contained EcmDecriptors. Illegal values are silently
+    // ignored.
+    inline void set_count(size_t count) {
+        if (!CountLegal(count)) return;
+        count_ = count;
+        count_set_ = true;
+    }
+    // Number of contained EcmDecriptors. Only 1 and 2 are legal values.
+    inline size_t count() const { return count_; }
+
+    // Returns the number of allowable descriptors. This is redundant but is
+    // provided for protobuf compatibility.
+    inline size_t descriptor_size() const { return count_; }
+
+    // Returns a pointer to the EcmDescriptor at |index| for valid index values,
+    // otherwise calls CHECK and aborts. Always call descriptor_size() first!
+    inline EcmDescriptor* mutable_descriptor(size_t index) {
+        //CHECK(IndexValid(index));
+        return &descriptor_[index];
+    }
+
+    // Returns a reference to the EcmDescriptor at |index| for valid index
+    // values, otherwise calls CHECK and aborts. Call descriptor_size() first!
+    inline const EcmDescriptor& descriptor(size_t index) const {
+        //CHECK(IndexValid(index));
+        return descriptor_[index];
+    }
+
+private:
+    // Count value must be 1 or 2.
+    inline bool CountLegal(size_t count) const {
+        return count <= kMaxDescriptorCount && count >= kMinDescriptorCount;
+    }
+    // Index must be 0 or 1.
+    inline bool IndexLegal(size_t index) const {
+        return index < kMaxDescriptorCount;
+    }
+    // |index| is valid for this object: it is legal and < count_.
+    inline bool IndexValid(size_t index) const {
+        if (!IndexLegal(index)) return false;
+        return index < count_;
+    }
+    size_t count_;
+    bool count_set_;
+    EcmDescriptor descriptor_[kMaxDescriptorCount];
+
+    DISALLOW_EVIL_CONSTRUCTORS(EcmContainer);
+};
+
+}  // namespace clearkeycas
+}  // namespace android
+
+#endif  // CLEAR_KEY_ECM_H_
diff --git a/drm/mediacas/plugins/clearkey/ecm_generator.cpp b/drm/mediacas/plugins/clearkey/ecm_generator.cpp
new file mode 100644
index 0000000..7d29659
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ecm_generator.cpp
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ecm_generator"
+#include "ecm_generator.h"
+
+#include <string.h>
+#include <algorithm>
+#include <endian.h>
+
+#include "protos/license_protos.pb.h"
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/MediaErrors.h>
+#include <openssl/aes.h>
+#include <utils/Log.h>
+
+namespace android {
+namespace clearkeycas {
+
+// These constants are internal to this module.
+const uint16_t kEcmClearFieldsSize = 16;
+const uint32_t kContentKeyByteSize = 16;
+const uint16_t kTotalEcmSize =
+        kEcmClearFieldsSize + kContentKeyByteSize; // clear fields + clear key
+
+const uint32_t kKeyLength = 16;
+
+#define UNALIGNED_LOAD32(_p) (*reinterpret_cast<const uint32_t *>(_p))
+
+static uint32_t Load32(const void *p) {
+    return ntohl(UNALIGNED_LOAD32(p));
+}
+
+static uint32_t LoadNext32(const uint8_t** pptr) {
+    CHECK(pptr);
+    CHECK(*pptr);
+    const uint8_t* p = *pptr;
+    *pptr += sizeof(uint32_t);
+    return Load32(p);
+}
+
+namespace ecm_generator {
+
+status_t DecodeECM(const sp<ABuffer>& ecm, Asset* asset,
+        sp<ABuffer> *content_key, DefaultEcmFields* default_fields) {
+    CHECK(asset);
+    CHECK(content_key);
+    CHECK(default_fields);
+
+    status_t status = DecodeECMClearFields(ecm, asset, default_fields);
+    if (status != OK) {
+        return status;
+    }
+
+    const uint8_t* ptr = ecm->data() + kEcmClearFieldsSize;
+    *content_key = new ABuffer(kContentKeyByteSize);
+    memcpy((*content_key)->data(), ptr, kContentKeyByteSize);
+
+    return OK;
+}
+
+status_t DecodeECMClearFields(const sp<ABuffer>& ecm, Asset* asset,
+        DefaultEcmFields* default_fields) {
+    CHECK(asset);
+    CHECK(default_fields);
+
+    if (ecm->size() < kTotalEcmSize) {
+        ALOGE("Short ECM: expected_length=%d, actual_length=%zu",
+                kTotalEcmSize, ecm->size());
+        return BAD_VALUE;
+    }
+    const uint8_t* ptr = ecm->data();
+    default_fields->old_version = LoadNext32(&ptr);
+    default_fields->clear_lead = LoadNext32(&ptr);
+    default_fields->system_id = LoadNext32(&ptr);
+    // The real ecm version is hidden in the system id.
+    default_fields->ecm_version = (default_fields->system_id >> 24) & 0xFF;
+    default_fields->system_id &= 0x00FFFFFF;
+    if (default_fields->system_id == 0) {
+        ALOGE("Ecm has invalid system_id 0");
+        return CLEARKEY_STATUS_INVALIDSYSTEMID;
+    }
+    asset->set_id(LoadNext32(&ptr));
+    if (asset->id() == 0) {
+        ALOGE("Ecm has invalid asset_id 0");
+        return CLEARKEY_STATUS_INVALIDASSETID;
+    }
+    return OK;
+}
+
+}  // namespace ecm_generator
+}  // namespace clearkeycas
+}  // namespace android
diff --git a/drm/mediacas/plugins/clearkey/ecm_generator.h b/drm/mediacas/plugins/clearkey/ecm_generator.h
new file mode 100644
index 0000000..2ef06c4
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/ecm_generator.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CLEAR_KEY_ECM_GENERATOR_H_
+#define CLEAR_KEY_ECM_GENERATOR_H_
+
+#include <string>
+
+#include "protos/license_protos.pb.h"
+
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/MediaErrors.h>
+
+using namespace std;
+
+namespace android {
+namespace clearkeycas {
+enum {
+    CLEARKEY_STATUS_BASE = ERROR_DRM_VENDOR_MAX,
+    CLEARKEY_STATUS_INVALIDASSETID = CLEARKEY_STATUS_BASE - 1,
+    CLEARKEY_STATUS_INVALIDSYSTEMID = CLEARKEY_STATUS_BASE - 2,
+    CLEARKEY_STATUS_INVALID_PARAMETER = CLEARKEY_STATUS_BASE - 3,
+};
+class Organization;
+
+namespace ecm_generator {
+
+// Layout of the ECM
+// ECM
+//  0 -  3 : Old ECM version (deprecated)
+//  4 -  7 : Clear lead (milliseconds)
+//       8 : ECM Version
+//  9 - 11 : System ID
+// 12 - 15 : Asset ID
+// 16 - 31 : Content Key (clear)
+//
+// The clear asset ID (bytes 12-15) is compared to the encrypted asset ID
+// (bytes 48-51) as a consistency check.
+
+struct DefaultEcmFields {
+    uint32_t old_version;
+    uint32_t clear_lead;
+    uint32_t ecm_version;
+    uint32_t system_id;
+};
+
+// Decodes a clear key ecm.
+// The following fields are decoded from the clear fields portion of the ecm:
+//   asset->id
+//   default_fields->old_version
+//   default_fields->clear_lead
+//   default_fields->system_id
+//   default_fields->ecm_version
+//
+// The following fields are decoded from the content key portion of the ecm:
+//   content_key
+//
+// |asset|, |content_key|, |default_fields| are owned by caller and must not
+// be NULL.
+// Returns failure via ecm_generator::DecodeECMClearFields.
+//
+// Example usage:
+//   Asset asset;
+//   string content_key;
+//   DefaultEcmFields default_fields;
+//   // Get a clear key |ecm|.
+//   status_t status = ecm_generator::DecodeECM(ecm, &asset, &content_key, &default_fields);
+status_t DecodeECM(const sp<ABuffer>& ecm, Asset* asset,
+        sp<ABuffer> *content_key, DefaultEcmFields* default_fields);
+
+// Decodes the following fields from the clear fields portion of the ecm:
+//   asset->id
+//   default_fields->old_version
+//   default_fields->clear_lead
+//   default_fields->system_id
+//   default_fields->ecm_version
+//
+// offset, asset and default_fields are owned by caller and must not be NULL.
+// offset is updated to show the number of bytes consumed.
+// Returns:
+// - BAD_VALUE on short ECM, or
+// - CLEARKEY_STATUS_INVALIDASSETID via ecm_generator::DecodeEcmClearFields if
+//   asset_id is 0, or
+// - CLEARKEY_STATUS_INVALIDSYSTEMID via ecm_generator::DecodeEcmClearFields if
+//   system_id is 0.
+//
+// Example usage:
+//   Asset asset;
+//   DefaultEcmFields default_fields;
+//   // Get a clear key ecm.
+//   status_t status = ecm_generator::DecodeECMClearFields(ecm, &asset, &default_fields);
+status_t DecodeECMClearFields(const sp<ABuffer>& ecm, Asset* asset,
+        DefaultEcmFields* default_fields);
+
+}  // namespace ecm_generator
+}  // namespace clearkeycas
+}  // namespace android
+#endif  // CLEAR_KEY_ECM_GENERATOR_H_
diff --git a/drm/mediacas/plugins/clearkey/protos/license_protos.proto b/drm/mediacas/plugins/clearkey/protos/license_protos.proto
new file mode 100644
index 0000000..397145d
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/protos/license_protos.proto
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+syntax = "proto2";
+
+package android.clearkeycas;
+
+option java_package = "com.google.video.clearkey.protos";
+
+// The Asset is the data describing licensing requirements and polciy for a
+// customer's video asset.
+//
+// The asset_id must not be set on creation.  It is only used for assets of
+// CasType: CLEARKEY_CAS.
+//
+message Asset {
+  // Indicates the type of digital rights management scheme used.
+  // CLEARKEY_CAS: Clearkey Media CAS.
+  enum CasType {
+    UNKNOWN = 0;
+    CLEARKEY_CAS = 1;
+  }
+
+  // Must be unset on creation.  Required for mutate operations on CLEARKEY_CAS assets.
+  optional uint64 id = 1;
+
+  // Organization-specified name of the asset. Required. Must not be empty.
+  // 'bytes' instead of 'string' due to UTF-8 validation in the latter.
+  optional bytes name = 2;
+
+  // The lowercase_organization_name is required.  It's a foreign key to the
+  // Organization table and part of the primary key for the Asset table.
+  optional string lowercase_organization_name = 3;
+
+  // The policy_name is required.  It's a foreign key to the policy table.
+  optional string policy_name = 4; // Name of the Policy to apply to this asset.
+
+  // Key information for decrypting content. Not used for CLEARKEY_CAS.
+  optional AssetKey asset_key = 5;
+
+  optional CasType cas_type = 6 [default = UNKNOWN];
+}
+
+// AssetKey defines a key that can be used to decrypt the license.
+// Note: In the previous implementation, the schema accommodated multiple
+// asset keys per asset.  This is not supported in this implementation.
+message AssetKey {
+  optional bytes encryption_key = 1;  // 256-byte key for the asset.
+}
diff --git a/drm/mediacas/plugins/clearkey/tests/Android.mk b/drm/mediacas/plugins/clearkey/tests/Android.mk
new file mode 100644
index 0000000..cbf7be7
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/tests/Android.mk
@@ -0,0 +1,44 @@
+#
+# Copyright (C) 2017 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    ClearKeyFetcherTest.cpp
+
+LOCAL_MODULE := ClearKeyFetcherTest
+
+# LOCAL_LDFLAGS is needed here for the test to use the plugin, because
+# the plugin is not in standard library search path. Without this .so
+# loading fails at run-time (linking is okay).
+LOCAL_LDFLAGS := \
+    -Wl,--rpath,\$${ORIGIN}/../../../system/lib/mediacas -Wl,--enable-new-dtags
+
+LOCAL_SHARED_LIBRARIES := \
+    libutils libclearkeycasplugin libstagefright_foundation libprotobuf-cpp-lite liblog
+
+LOCAL_C_INCLUDES += \
+    $(TOP)/frameworks/av/drm/mediacas/plugins/clearkey \
+    $(TOP)/frameworks/av/include \
+    $(TOP)/frameworks/native/include/media \
+
+LOCAL_MODULE_TAGS := tests
+
+include $(BUILD_NATIVE_TEST)
+
+
+
diff --git a/drm/mediacas/plugins/clearkey/tests/ClearKeyFetcherTest.cpp b/drm/mediacas/plugins/clearkey/tests/ClearKeyFetcherTest.cpp
new file mode 100644
index 0000000..ace086a
--- /dev/null
+++ b/drm/mediacas/plugins/clearkey/tests/ClearKeyFetcherTest.cpp
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ClearKeyFetcherTest"
+#include <utils/Log.h>
+#include <gtest/gtest.h>
+#include <stddef.h>
+#include <algorithm>
+#include <string>
+
+#include "ClearKeyFetcher.h"
+#include "ClearKeyLicenseFetcher.h"
+#include "protos/license_protos.pb.h"
+
+namespace android {
+namespace clearkeycas {
+
+const char *kTestAssetInJson =
+        "{                                                   "
+        "  \"id\": 21140844,                                 "
+        "  \"name\": \"Test Title\",                         "
+        "  \"lowercase_organization_name\": \"Android\",     "
+        "  \"asset_key\": {                                  "
+        "  \"encryption_key\": \"nezAr3CHFrmBR9R8Tedotw==\"  "
+        "  },                                                "
+        "  \"cas_type\": 1,                                  "
+        "  \"track_types\": [ ]                              "
+        "}                                                   " ;
+
+const uint8_t kTestEcmContainer[] = {
+        0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+        0x00, 0x00, 0x27, 0x10, 0x02, 0x00, 0x01, 0x77,
+        0x01, 0x42, 0x95, 0x6c, 0x0e, 0xe3, 0x91, 0xbc,
+        0xfd, 0x05, 0xb1, 0x60, 0x4f, 0x17, 0x82, 0xa4,
+        0x86, 0x9b, 0x23, 0x56, 0x00, 0x01, 0x00, 0x00,
+        0x00, 0x01, 0x00, 0x00, 0x27, 0x10, 0x02, 0x00,
+        0x01, 0x77, 0x01, 0x42, 0x95, 0x6c, 0xd7, 0x43,
+        0x62, 0xf8, 0x1c, 0x62, 0x19, 0x05, 0xc7, 0x3a,
+        0x42, 0xcd, 0xfd, 0xd9, 0x13, 0x48,
+};
+
+const uint8_t kTestContentKey0[] = {
+        0x0e, 0xe3, 0x91, 0xbc, 0xfd, 0x05, 0xb1, 0x60,
+        0x4f, 0x17, 0x82, 0xa4, 0x86, 0x9b, 0x23, 0x56};
+
+const uint8_t kTestContentKey1[] = {
+        0xd7, 0x43, 0x62, 0xf8, 0x1c, 0x62, 0x19, 0x05,
+        0xc7, 0x3a, 0x42, 0xcd, 0xfd, 0xd9, 0x13, 0x48};
+
+constexpr uint32_t kTestEcmCount = 2;
+
+class ClearKeyFetcherTest : public testing::Test {
+protected:
+    virtual void SetUp();
+
+protected:
+    std::unique_ptr<ClearKeyLicenseFetcher> license_fetcher_;
+    sp<ABuffer> ecm_;
+    sp<ABuffer> content_key_[kTestEcmCount];
+};
+
+void ClearKeyFetcherTest::SetUp() {
+    license_fetcher_.reset(new ClearKeyLicenseFetcher());
+    EXPECT_EQ(OK, license_fetcher_->Init(kTestAssetInJson));
+    ecm_ = new ABuffer((void*) (kTestEcmContainer), sizeof(kTestEcmContainer));
+    content_key_[0] = new ABuffer(
+            (void*)kTestContentKey0, sizeof(kTestContentKey0));
+    content_key_[1] = new ABuffer(
+            (void*)kTestContentKey1, sizeof(kTestContentKey1));
+}
+
+TEST_F(ClearKeyFetcherTest, Ctor) {
+    ClearKeyFetcher fetcher(std::move(license_fetcher_));
+}
+
+TEST_F(ClearKeyFetcherTest, Success) {
+    ClearKeyFetcher fetcher(std::move(license_fetcher_));
+    EXPECT_EQ(OK, fetcher.Init());
+    uint64_t asset_id;
+    std::vector<KeyFetcher::KeyInfo> keys;
+    EXPECT_EQ(OK, fetcher.ObtainKey(ecm_, &asset_id, &keys));
+    EXPECT_EQ(2, keys.size());
+    EXPECT_EQ(0, keys[0].key_id);
+    EXPECT_EQ(content_key_[0]->size(), keys[0].key_bytes->size());
+    EXPECT_EQ(0, memcmp(content_key_[0]->data(),
+            keys[0].key_bytes->data(), content_key_[0]->size()));
+    EXPECT_EQ(1, keys[1].key_id);
+    EXPECT_EQ(content_key_[1]->size(), keys[1].key_bytes->size());
+    EXPECT_EQ(0, memcmp(content_key_[1]->data(),
+            keys[1].key_bytes->data(), content_key_[1]->size()));
+}
+
+} // namespace clearkeycas
+} // namespace android
diff --git a/drm/mediacas/plugins/mock/Android.mk b/drm/mediacas/plugins/mock/Android.mk
new file mode 100644
index 0000000..a97fac6
--- /dev/null
+++ b/drm/mediacas/plugins/mock/Android.mk
@@ -0,0 +1,37 @@
+#
+# Copyright (C) 2017 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+    MockCasPlugin.cpp \
+    MockSessionLibrary.cpp \
+
+LOCAL_MODULE := libmockcasplugin
+
+LOCAL_PROPRIETARY_MODULE := true
+LOCAL_MODULE_RELATIVE_PATH := mediacas
+
+LOCAL_SHARED_LIBRARIES := \
+    libutils liblog
+
+LOCAL_C_INCLUDES += \
+    $(TOP)/frameworks/av/include \
+    $(TOP)/frameworks/native/include/media \
+
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/drm/mediacas/plugins/mock/MockCasPlugin.cpp b/drm/mediacas/plugins/mock/MockCasPlugin.cpp
new file mode 100644
index 0000000..18cd9a4
--- /dev/null
+++ b/drm/mediacas/plugins/mock/MockCasPlugin.cpp
@@ -0,0 +1,254 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "MockCasPlugin"
+
+#include <media/stagefright/foundation/hexdump.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/Log.h>
+
+#include "MockCasPlugin.h"
+#include "MockSessionLibrary.h"
+
+android::CasFactory* createCasFactory() {
+    return new android::MockCasFactory();
+}
+
+android::DescramblerFactory* createDescramblerFactory() {
+    return new android::MockDescramblerFactory();
+}
+
+namespace android {
+
+static const int32_t sMockId = 0xFFFF;
+
+bool MockCasFactory::isSystemIdSupported(int32_t CA_system_id) const {
+    return CA_system_id == sMockId;
+}
+
+status_t MockCasFactory::queryPlugins(
+        std::vector<CasPluginDescriptor> *descriptors) const {
+    descriptors->clear();
+    descriptors->push_back({sMockId, String8("MockCAS")});
+    return OK;
+}
+
+status_t MockCasFactory::createPlugin(
+        int32_t CA_system_id,
+        uint64_t appData,
+        CasPluginCallback callback,
+        CasPlugin **plugin) {
+    if (!isSystemIdSupported(CA_system_id)) {
+        return BAD_VALUE;
+    }
+
+    *plugin = new MockCasPlugin();
+    return OK;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+bool MockDescramblerFactory::isSystemIdSupported(int32_t CA_system_id) const {
+    return CA_system_id == sMockId;
+}
+
+status_t MockDescramblerFactory::createPlugin(
+        int32_t CA_system_id, DescramblerPlugin** plugin) {
+    if (!isSystemIdSupported(CA_system_id)) {
+        return BAD_VALUE;
+    }
+
+    *plugin = new MockDescramblerPlugin();
+    return OK;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+static String8 arrayToString(const std::vector<uint8_t> &array) {
+    String8 result;
+    for (size_t i = 0; i < array.size(); i++) {
+        result.appendFormat("%02x ", array[i]);
+    }
+    if (result.isEmpty()) {
+        result.append("(null)");
+    }
+    return result;
+}
+
+MockCasPlugin::MockCasPlugin() {
+    ALOGV("CTOR");
+}
+
+MockCasPlugin::~MockCasPlugin() {
+    ALOGV("DTOR");
+    MockSessionLibrary::get()->destroyPlugin(this);
+}
+
+status_t MockCasPlugin::setPrivateData(const CasData &data) {
+    ALOGV("setPrivateData");
+    return OK;
+}
+
+status_t MockCasPlugin::openSession(CasSessionId* sessionId) {
+    ALOGV("openSession");
+    return MockSessionLibrary::get()->addSession(this, sessionId);
+}
+
+status_t MockCasPlugin::closeSession(const CasSessionId &sessionId) {
+    ALOGV("closeSession: sessionId=%s", arrayToString(sessionId).string());
+    Mutex::Autolock lock(mLock);
+
+    sp<MockCasSession> session =
+            MockSessionLibrary::get()->findSession(sessionId);
+    if (session == NULL) {
+        return BAD_VALUE;
+    }
+
+    MockSessionLibrary::get()->destroySession(sessionId);
+    return OK;
+}
+
+status_t MockCasPlugin::setSessionPrivateData(
+        const CasSessionId &sessionId, const CasData &data) {
+    ALOGV("setSessionPrivateData: sessionId=%s",
+            arrayToString(sessionId).string());
+    Mutex::Autolock lock(mLock);
+
+    sp<MockCasSession> session =
+            MockSessionLibrary::get()->findSession(sessionId);
+    if (session == NULL) {
+        return BAD_VALUE;
+    }
+    return OK;
+}
+
+status_t MockCasPlugin::processEcm(
+        const CasSessionId &sessionId, const CasEcm& ecm) {
+    ALOGV("processEcm: sessionId=%s", arrayToString(sessionId).string());
+    Mutex::Autolock lock(mLock);
+
+    sp<MockCasSession> session =
+            MockSessionLibrary::get()->findSession(sessionId);
+    if (session == NULL) {
+        return BAD_VALUE;
+    }
+    ALOGV("ECM: size=%d", ecm.size());
+    ALOGV("ECM: data=%s", arrayToString(ecm).string());
+
+    return OK;
+}
+
+status_t MockCasPlugin::processEmm(const CasEmm& emm) {
+    ALOGV("processEmm");
+    Mutex::Autolock lock(mLock);
+
+    ALOGV("EMM: size=%d", emm.size());
+    ALOGV("EMM: data=%s", arrayToString(emm).string());
+
+    return OK;
+}
+
+status_t MockCasPlugin::sendEvent(
+        int32_t event, int arg, const CasData &eventData) {
+    ALOGV("sendEvent: event=%d", event);
+    Mutex::Autolock lock(mLock);
+
+    return OK;
+}
+
+status_t MockCasPlugin::provision(const String8 &str) {
+    ALOGV("provision: provisionString=%s", str.string());
+    Mutex::Autolock lock(mLock);
+
+    return OK;
+}
+
+status_t MockCasPlugin::refreshEntitlements(
+        int32_t refreshType, const CasData &refreshData) {
+    ALOGV("refreshEntitlements: refreshData=%s", arrayToString(refreshData).string());
+    Mutex::Autolock lock(mLock);
+
+    return OK;
+}
+
+/////////////////////////////////////////////////////////////////
+bool MockDescramblerPlugin::requiresSecureDecoderComponent(
+        const char *mime) const {
+    ALOGV("MockDescramblerPlugin::requiresSecureDecoderComponent"
+            "(mime=%s)", mime);
+    return false;
+}
+
+status_t MockDescramblerPlugin::setMediaCasSession(
+        const CasSessionId &sessionId) {
+    ALOGV("MockDescramblerPlugin::setMediaCasSession");
+    sp<MockCasSession> session =
+            MockSessionLibrary::get()->findSession(sessionId);
+
+    if (session == NULL) {
+        ALOGE("MockDescramblerPlugin: session not found");
+        return ERROR_DRM_SESSION_NOT_OPENED;
+    }
+
+    return OK;
+}
+
+ssize_t MockDescramblerPlugin::descramble(
+        bool secure,
+        ScramblingControl scramblingControl,
+        size_t numSubSamples,
+        const SubSample *subSamples,
+        const void *srcPtr,
+        int32_t srcOffset,
+        void *dstPtr,
+        int32_t dstOffset,
+        AString *errorDetailMsg) {
+    ALOGV("MockDescramblerPlugin::descramble(secure=%d, sctrl=%d,"
+          "subSamples=%s, srcPtr=%p, dstPtr=%p, srcOffset=%d, dstOffset=%d)",
+          (int)secure, (int)scramblingControl,
+          subSamplesToString(subSamples, numSubSamples).string(),
+          srcPtr, dstPtr, srcOffset, dstOffset);
+
+    return 0;
+}
+
+// Conversion utilities
+String8 MockDescramblerPlugin::arrayToString(
+        uint8_t const *array, size_t len) const
+{
+    String8 result("{ ");
+    for (size_t i = 0; i < len; i++) {
+        result.appendFormat("0x%02x ", array[i]);
+    }
+    result += "}";
+    return result;
+}
+
+String8 MockDescramblerPlugin::subSamplesToString(
+        SubSample const *subSamples, size_t numSubSamples) const
+{
+    String8 result;
+    for (size_t i = 0; i < numSubSamples; i++) {
+        result.appendFormat("[%zu] {clear:%u, encrypted:%u} ", i,
+                            subSamples[i].mNumBytesOfClearData,
+                            subSamples[i].mNumBytesOfEncryptedData);
+    }
+    return result;
+}
+
+} // namespace android
+
diff --git a/drm/mediacas/plugins/mock/MockCasPlugin.h b/drm/mediacas/plugins/mock/MockCasPlugin.h
new file mode 100644
index 0000000..9632492
--- /dev/null
+++ b/drm/mediacas/plugins/mock/MockCasPlugin.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MOCK_CAS_PLUGIN_H_
+#define MOCK_CAS_PLUGIN_H_
+
+#include <media/cas/CasAPI.h>
+#include <media/cas/DescramblerAPI.h>
+#include <utils/Mutex.h>
+
+extern "C" {
+      android::CasFactory *createCasFactory();
+      android::DescramblerFactory *createDescramblerFactory();
+}
+
+namespace android {
+
+class MockCasFactory : public CasFactory {
+public:
+    MockCasFactory() {}
+    virtual ~MockCasFactory() {}
+
+    virtual bool isSystemIdSupported(
+            int32_t CA_system_id) const override;
+    virtual status_t queryPlugins(
+            std::vector<CasPluginDescriptor> *descriptors) const override;
+    virtual status_t createPlugin(
+            int32_t CA_system_id,
+            uint64_t appData,
+            CasPluginCallback callback,
+            CasPlugin **plugin) override;
+};
+
+class MockDescramblerFactory : public DescramblerFactory {
+public:
+    MockDescramblerFactory() {}
+    virtual ~MockDescramblerFactory() {}
+
+    virtual bool isSystemIdSupported(
+            int32_t CA_system_id) const override;
+    virtual status_t createPlugin(
+            int32_t CA_system_id, DescramblerPlugin **plugin) override;
+};
+
+class MockCasPlugin : public CasPlugin {
+public:
+    MockCasPlugin();
+    virtual ~MockCasPlugin();
+
+    virtual status_t setPrivateData(
+            const CasData &data) override;
+
+    virtual status_t openSession(CasSessionId *sessionId) override;
+
+    virtual status_t closeSession(
+            const CasSessionId &sessionId) override;
+
+    virtual status_t setSessionPrivateData(
+            const CasSessionId &sessionId,
+            const CasData &data) override;
+
+    virtual status_t processEcm(
+            const CasSessionId &sessionId, const CasEcm &ecm) override;
+
+    virtual status_t processEmm(const CasEmm &emm) override;
+
+    virtual status_t sendEvent(
+            int32_t event, int32_t arg, const CasData &eventData) override;
+
+    virtual status_t provision(const String8 &str) override;
+
+    virtual status_t refreshEntitlements(
+            int32_t refreshType, const CasData &refreshData) override;
+
+private:
+
+    Mutex mLock;
+};
+
+class MockDescramblerPlugin : public DescramblerPlugin {
+public:
+    MockDescramblerPlugin() {}
+    virtual ~MockDescramblerPlugin() {};
+
+    virtual bool requiresSecureDecoderComponent(
+            const char *mime) const override;
+
+    virtual status_t setMediaCasSession(
+            const CasSessionId &sessionId) override;
+
+    virtual ssize_t descramble(
+            bool secure,
+            ScramblingControl scramblingControl,
+            size_t numSubSamples,
+            const SubSample *subSamples,
+            const void *srcPtr,
+            int32_t srcOffset,
+            void *dstPtr,
+            int32_t dstOffset,
+            AString *errorDetailMsg) override;
+
+private:
+    String8 subSamplesToString(
+            SubSample const *subSamples,
+            size_t numSubSamples) const;
+    String8 arrayToString(uint8_t const *array, size_t len) const;
+};
+} // namespace android
+
+#endif // MOCK_CAS_PLUGIN_H_
diff --git a/drm/mediacas/plugins/mock/MockSessionLibrary.cpp b/drm/mediacas/plugins/mock/MockSessionLibrary.cpp
new file mode 100644
index 0000000..a7ee9a0
--- /dev/null
+++ b/drm/mediacas/plugins/mock/MockSessionLibrary.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MockSessionLibrary"
+
+#include <utils/Log.h>
+#include <utils/String8.h>
+#include "MockSessionLibrary.h"
+
+namespace android {
+
+Mutex MockSessionLibrary::sSingletonLock;
+MockSessionLibrary* MockSessionLibrary::sSingleton = NULL;
+
+MockSessionLibrary* MockSessionLibrary::get() {
+    Mutex::Autolock lock(sSingletonLock);
+
+    if (sSingleton == NULL) {
+        ALOGD("Instantiating Session Library Singleton.");
+        sSingleton = new MockSessionLibrary();
+    }
+
+    return sSingleton;
+}
+
+MockSessionLibrary::MockSessionLibrary() : mNextSessionId(1) {}
+
+status_t MockSessionLibrary::addSession(
+        CasPlugin *plugin, CasSessionId *sessionId) {
+    Mutex::Autolock lock(mSessionsLock);
+
+    sp<MockCasSession> session = new MockCasSession(plugin);
+
+    uint8_t *byteArray = (uint8_t *) &mNextSessionId;
+    sessionId->push_back(byteArray[3]);
+    sessionId->push_back(byteArray[2]);
+    sessionId->push_back(byteArray[1]);
+    sessionId->push_back(byteArray[0]);
+    mNextSessionId++;
+
+    mIDToSessionMap.add(*sessionId, session);
+    return OK;
+}
+
+sp<MockCasSession> MockSessionLibrary::findSession(
+        const CasSessionId& sessionId) {
+    Mutex::Autolock lock(mSessionsLock);
+
+    ssize_t index = mIDToSessionMap.indexOfKey(sessionId);
+    if (index < 0) {
+        return NULL;
+    }
+    return mIDToSessionMap.valueFor(sessionId);
+}
+
+void MockSessionLibrary::destroySession(const CasSessionId& sessionId) {
+    Mutex::Autolock lock(mSessionsLock);
+
+    ssize_t index = mIDToSessionMap.indexOfKey(sessionId);
+    if (index < 0) {
+        return;
+    }
+
+    sp<MockCasSession> session = mIDToSessionMap.valueAt(index);
+    mIDToSessionMap.removeItemsAt(index);
+}
+
+void MockSessionLibrary::destroyPlugin(CasPlugin *plugin) {
+    Mutex::Autolock lock(mSessionsLock);
+
+    for (ssize_t index = mIDToSessionMap.size() - 1; index >= 0; index--) {
+        sp<MockCasSession> session = mIDToSessionMap.valueAt(index);
+        if (session->getPlugin() == plugin) {
+            mIDToSessionMap.removeItemsAt(index);
+        }
+    }
+}
+
+} // namespace android
diff --git a/drm/mediacas/plugins/mock/MockSessionLibrary.h b/drm/mediacas/plugins/mock/MockSessionLibrary.h
new file mode 100644
index 0000000..0b30f4c
--- /dev/null
+++ b/drm/mediacas/plugins/mock/MockSessionLibrary.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MOCK_CAS_SESSION_LIBRARY_H_
+#define MOCK_CAS_SESSION_LIBRARY_H_
+
+#include <media/cas/CasAPI.h>
+#include <media/stagefright/foundation/ABase.h>
+#include <utils/KeyedVector.h>
+#include <utils/Mutex.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class MockCasSession : public RefBase {
+public:
+    explicit MockCasSession(CasPlugin *plugin) : mPlugin(plugin) {}
+    virtual ~MockCasSession() {}
+
+private:
+    friend class MockSessionLibrary;
+
+    CasPlugin* mPlugin;
+
+    CasPlugin* getPlugin() const { return mPlugin; }
+
+    DISALLOW_EVIL_CONSTRUCTORS(MockCasSession);
+};
+
+class MockSessionLibrary {
+public:
+    static MockSessionLibrary* get();
+
+    status_t addSession(CasPlugin *plugin, CasSessionId *sessionId);
+
+    sp<MockCasSession> findSession(const CasSessionId& sessionId);
+
+    void destroySession(const CasSessionId& sessionId);
+
+    void destroyPlugin(CasPlugin *plugin);
+
+private:
+    static Mutex sSingletonLock;
+    static MockSessionLibrary* sSingleton;
+
+    Mutex mSessionsLock;
+    uint32_t mNextSessionId;
+    KeyedVector<CasSessionId, sp<MockCasSession> > mIDToSessionMap;
+
+    MockSessionLibrary();
+    DISALLOW_EVIL_CONSTRUCTORS(MockSessionLibrary);
+};
+} // namespace android
+
+#endif // MOCK_CAS_SESSION_LIBRARY_H_
diff --git a/drm/mediadrm/plugins/clearkey/CryptoPlugin.h b/drm/mediadrm/plugins/clearkey/CryptoPlugin.h
index de84c36..a6d2f7b 100644
--- a/drm/mediadrm/plugins/clearkey/CryptoPlugin.h
+++ b/drm/mediadrm/plugins/clearkey/CryptoPlugin.h
@@ -31,7 +31,7 @@
 
 class CryptoPlugin : public android::CryptoPlugin {
 public:
-    CryptoPlugin(const android::Vector<uint8_t>& sessionId) {
+    explicit CryptoPlugin(const android::Vector<uint8_t>& sessionId) {
         mInitStatus = setMediaDrmSession(sessionId);
     }
 
diff --git a/drm/mediadrm/plugins/clearkey/DrmFactory.cpp b/drm/mediadrm/plugins/clearkey/DrmFactory.cpp
index d27956c..c83321b 100644
--- a/drm/mediadrm/plugins/clearkey/DrmFactory.cpp
+++ b/drm/mediadrm/plugins/clearkey/DrmFactory.cpp
@@ -44,7 +44,8 @@
 }
 
 android::status_t DrmFactory::createDrmPlugin(
-        const uint8_t uuid[16], android::DrmPlugin** plugin) {
+        const uint8_t uuid[16],
+        android::DrmPlugin** plugin) {
     if (!isCryptoSchemeSupported(uuid)) {
         *plugin = NULL;
         return android::BAD_VALUE;
diff --git a/drm/mediadrm/plugins/clearkey/DrmFactory.h b/drm/mediadrm/plugins/clearkey/DrmFactory.h
index 87db982..0bc0843 100644
--- a/drm/mediadrm/plugins/clearkey/DrmFactory.h
+++ b/drm/mediadrm/plugins/clearkey/DrmFactory.h
@@ -35,7 +35,8 @@
     virtual bool isContentTypeSupported(const android::String8 &mimeType);
 
     virtual android::status_t createDrmPlugin(
-            const uint8_t uuid[16], android::DrmPlugin** plugin);
+            const uint8_t uuid[16],
+            android::DrmPlugin** plugin);
 
 private:
     DISALLOW_EVIL_CONSTRUCTORS(DrmFactory);
diff --git a/drm/mediadrm/plugins/clearkey/DrmPlugin.cpp b/drm/mediadrm/plugins/clearkey/DrmPlugin.cpp
index 8356bcc..5fdac5c 100644
--- a/drm/mediadrm/plugins/clearkey/DrmPlugin.cpp
+++ b/drm/mediadrm/plugins/clearkey/DrmPlugin.cpp
@@ -37,10 +37,14 @@
 
 status_t DrmPlugin::closeSession(const Vector<uint8_t>& sessionId) {
     sp<Session> session = mSessionLibrary->findSession(sessionId);
+    if (sessionId.size() == 0) {
+        return android::BAD_VALUE;
+    }
     if (session.get()) {
         mSessionLibrary->destroySession(session);
+        return android::OK;
     }
-    return android::OK;
+    return android::ERROR_DRM_SESSION_NOT_OPENED;
 }
 
 status_t DrmPlugin::getKeyRequest(
@@ -53,6 +57,9 @@
         String8& defaultUrl,
         DrmPlugin::KeyRequestType *keyRequestType) {
     UNUSED(optionalParameters);
+    if (scope.size() == 0) {
+        return android::BAD_VALUE;
+    }
     if (keyType != kKeyType_Streaming) {
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
@@ -69,6 +76,9 @@
         const Vector<uint8_t>& scope,
         const Vector<uint8_t>& response,
         Vector<uint8_t>& keySetId) {
+    if (scope.size() == 0 || response.size() == 0) {
+        return android::BAD_VALUE;
+    }
     sp<Session> session = mSessionLibrary->findSession(scope);
     if (!session.get()) {
         return android::ERROR_DRM_SESSION_NOT_OPENED;
diff --git a/drm/mediadrm/plugins/clearkey/DrmPlugin.h b/drm/mediadrm/plugins/clearkey/DrmPlugin.h
index efb9f8b..58421b9 100644
--- a/drm/mediadrm/plugins/clearkey/DrmPlugin.h
+++ b/drm/mediadrm/plugins/clearkey/DrmPlugin.h
@@ -39,7 +39,7 @@
 
 class DrmPlugin : public android::DrmPlugin {
 public:
-    DrmPlugin(SessionLibrary* sessionLibrary)
+    explicit DrmPlugin(SessionLibrary* sessionLibrary)
             : mSessionLibrary(sessionLibrary) {}
     virtual ~DrmPlugin() {}
 
@@ -63,22 +63,28 @@
             Vector<uint8_t>& keySetId);
 
     virtual status_t removeKeys(const Vector<uint8_t>& sessionId) {
-        UNUSED(sessionId);
+        if (sessionId.size() == 0) {
+            return android::BAD_VALUE;
+        }
+
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
 
     virtual status_t restoreKeys(
             const Vector<uint8_t>& sessionId,
             const Vector<uint8_t>& keySetId) {
-        UNUSED(sessionId);
-        UNUSED(keySetId);
+        if (sessionId.size() == 0 || keySetId.size() == 0) {
+            return android::BAD_VALUE;
+        }
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
 
     virtual status_t queryKeyStatus(
             const Vector<uint8_t>& sessionId,
             KeyedVector<String8, String8>& infoMap) const {
-        UNUSED(sessionId);
+        if (sessionId.size() == 0) {
+            return android::BAD_VALUE;
+        }
         UNUSED(infoMap);
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
@@ -99,9 +105,12 @@
             const Vector<uint8_t>& response,
             Vector<uint8_t>& certificate,
             Vector<uint8_t>& wrappedKey) {
-        UNUSED(response);
         UNUSED(certificate);
         UNUSED(wrappedKey);
+        if (response.size() == 0) {
+            // empty response
+            return android::BAD_VALUE;
+        }
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
 
@@ -111,13 +120,18 @@
     }
 
     virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) {
-        UNUSED(ssid);
+        if (ssid.size() == 0) {
+            return android::BAD_VALUE;
+        }
+
         UNUSED(secureStop);
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
 
     virtual status_t releaseSecureStops(const Vector<uint8_t>& ssRelease) {
-        UNUSED(ssRelease);
+        if (ssRelease.size() == 0) {
+            return android::BAD_VALUE;
+        }
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
 
@@ -151,15 +165,17 @@
 
     virtual status_t setCipherAlgorithm(
             const Vector<uint8_t>& sessionId, const String8& algorithm) {
-        UNUSED(sessionId);
-        UNUSED(algorithm);
+        if (sessionId.size() == 0 || algorithm.size() == 0) {
+            return android::BAD_VALUE;
+        }
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
 
     virtual status_t setMacAlgorithm(
             const Vector<uint8_t>& sessionId, const String8& algorithm) {
-        UNUSED(sessionId);
-        UNUSED(algorithm);
+        if (sessionId.size() == 0 || algorithm.size() == 0) {
+            return android::BAD_VALUE;
+        }
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
 
@@ -169,10 +185,10 @@
             const Vector<uint8_t>& input,
             const Vector<uint8_t>& iv,
             Vector<uint8_t>& output) {
-        UNUSED(sessionId);
-        UNUSED(keyId);
-        UNUSED(input);
-        UNUSED(iv);
+        if (sessionId.size() == 0 || keyId.size() == 0 ||
+                input.size() == 0 || iv.size() == 0) {
+            return android::BAD_VALUE;
+        }
         UNUSED(output);
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
@@ -183,10 +199,10 @@
             const Vector<uint8_t>& input,
             const Vector<uint8_t>& iv,
             Vector<uint8_t>& output) {
-        UNUSED(sessionId);
-        UNUSED(keyId);
-        UNUSED(input);
-        UNUSED(iv);
+        if (sessionId.size() == 0 || keyId.size() == 0 ||
+                input.size() == 0 || iv.size() == 0) {
+            return android::BAD_VALUE;
+        }
         UNUSED(output);
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
@@ -196,9 +212,10 @@
             const Vector<uint8_t>& keyId,
             const Vector<uint8_t>& message,
             Vector<uint8_t>& signature) {
-        UNUSED(sessionId);
-        UNUSED(keyId);
-        UNUSED(message);
+        if (sessionId.size() == 0 || keyId.size() == 0 ||
+                message.size() == 0) {
+            return android::BAD_VALUE;
+        }
         UNUSED(signature);
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
@@ -208,10 +225,10 @@
             const Vector<uint8_t>& keyId,
             const Vector<uint8_t>& message,
             const Vector<uint8_t>& signature, bool& match) {
-        UNUSED(sessionId);
-        UNUSED(keyId);
-        UNUSED(message);
-        UNUSED(signature);
+        if (sessionId.size() == 0 || keyId.size() == 0 ||
+                message.size() == 0 || signature.size() == 0) {
+            return android::BAD_VALUE;
+        }
         UNUSED(match);
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
@@ -222,10 +239,10 @@
             const Vector<uint8_t>& message,
             const Vector<uint8_t>& wrappedKey,
             Vector<uint8_t>& signature) {
-        UNUSED(sessionId);
-        UNUSED(algorithm);
-        UNUSED(message);
-        UNUSED(wrappedKey);
+        if (sessionId.size() == 0 || algorithm.size() == 0 ||
+                message.size() == 0 || wrappedKey.size() == 0) {
+            return android::BAD_VALUE;
+        }
         UNUSED(signature);
         return android::ERROR_DRM_CANNOT_HANDLE;
     }
diff --git a/drm/mediadrm/plugins/clearkey/SessionLibrary.cpp b/drm/mediadrm/plugins/clearkey/SessionLibrary.cpp
index 46d7f77..0419f97 100644
--- a/drm/mediadrm/plugins/clearkey/SessionLibrary.cpp
+++ b/drm/mediadrm/plugins/clearkey/SessionLibrary.cpp
@@ -43,7 +43,7 @@
     return sSingleton;
 }
 
-const sp<Session>& SessionLibrary::createSession() {
+sp<Session> SessionLibrary::createSession() {
     Mutex::Autolock lock(mSessionsLock);
 
     String8 sessionIdString = String8::format("%u", mNextSessionId);
@@ -57,9 +57,12 @@
     return mSessions.valueFor(sessionId);
 }
 
-const sp<Session>& SessionLibrary::findSession(
+sp<Session> SessionLibrary::findSession(
         const Vector<uint8_t>& sessionId) {
     Mutex::Autolock lock(mSessionsLock);
+    if (mSessions.indexOfKey(sessionId) < 0) {
+        return sp<Session>(NULL);
+    }
     return mSessions.valueFor(sessionId);
 }
 
diff --git a/drm/mediadrm/plugins/clearkey/SessionLibrary.h b/drm/mediadrm/plugins/clearkey/SessionLibrary.h
index 199ad64..6236fff 100644
--- a/drm/mediadrm/plugins/clearkey/SessionLibrary.h
+++ b/drm/mediadrm/plugins/clearkey/SessionLibrary.h
@@ -31,9 +31,9 @@
 public:
     static SessionLibrary* get();
 
-    const android::sp<Session>& createSession();
+    android::sp<Session> createSession();
 
-    const android::sp<Session>& findSession(
+    android::sp<Session> findSession(
             const android::Vector<uint8_t>& sessionId);
 
     void destroySession(const android::sp<Session>& session);
@@ -48,7 +48,7 @@
 
     android::Mutex mSessionsLock;
     uint32_t mNextSessionId;
-    android::DefaultKeyedVector<android::Vector<uint8_t>, android::sp<Session> >
+    android::KeyedVector<android::Vector<uint8_t>, android::sp<Session> >
             mSessions;
 };
 
diff --git a/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.cpp b/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.cpp
index 1e80f8e..c82b9d9 100644
--- a/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.cpp
+++ b/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.cpp
@@ -56,7 +56,8 @@
         return true;
     }
 
-    status_t MockDrmFactory::createDrmPlugin(const uint8_t /* uuid */[16], DrmPlugin **plugin)
+    status_t MockDrmFactory::createDrmPlugin(const uint8_t /* uuid */[16],
+                                             DrmPlugin **plugin)
     {
         *plugin = new MockDrmPlugin();
         return OK;
@@ -729,7 +730,7 @@
 
     ssize_t MockDrmPlugin::findSession(Vector<uint8_t> const &sessionId) const
     {
-        ALOGD("findSession: nsessions=%d, size=%d", mSessions.size(), sessionId.size());
+        ALOGD("findSession: nsessions=%u, size=%u", mSessions.size(), sessionId.size());
         for (size_t i = 0; i < mSessions.size(); ++i) {
             if (memcmp(mSessions[i].array(), sessionId.array(), sessionId.size()) == 0) {
                 return i;
@@ -740,7 +741,7 @@
 
     ssize_t MockDrmPlugin::findKeySet(Vector<uint8_t> const &keySetId) const
     {
-        ALOGD("findKeySet: nkeySets=%d, size=%d", mKeySets.size(), keySetId.size());
+        ALOGD("findKeySet: nkeySets=%u, size=%u", mKeySets.size(), keySetId.size());
         for (size_t i = 0; i < mKeySets.size(); ++i) {
             if (memcmp(mKeySets[i].array(), keySetId.array(), keySetId.size()) == 0) {
                 return i;
@@ -766,7 +767,7 @@
         return result;
     }
 
-    String8 MockDrmPlugin::stringMapToString(KeyedVector<String8, String8> map) const
+    String8 MockDrmPlugin::stringMapToString(const KeyedVector<String8, String8>& map) const
     {
         String8 result("{ ");
         for (size_t i = 0; i < map.size(); i++) {
diff --git a/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.h b/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.h
index 40d4e84..9f8db17 100644
--- a/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.h
+++ b/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.h
@@ -33,7 +33,8 @@
 
         bool isCryptoSchemeSupported(const uint8_t uuid[16]);
         bool isContentTypeSupported(const String8 &mimeType);
-        status_t createDrmPlugin(const uint8_t uuid[16], DrmPlugin **plugin);
+        status_t createDrmPlugin(const uint8_t uuid[16],
+                                 DrmPlugin **plugin);
     };
 
     class MockCryptoFactory : public CryptoFactory {
@@ -138,7 +139,7 @@
     private:
         String8 vectorToString(Vector<uint8_t> const &vector) const;
         String8 arrayToString(uint8_t const *array, size_t len) const;
-        String8 stringMapToString(KeyedVector<String8, String8> map) const;
+        String8 stringMapToString(const KeyedVector<String8, String8>& map) const;
 
         SortedVector<Vector<uint8_t> > mSessions;
         SortedVector<Vector<uint8_t> > mKeySets;
diff --git a/include/camera b/include/camera
new file mode 120000
index 0000000..00848e3
--- /dev/null
+++ b/include/camera
@@ -0,0 +1 @@
+../camera/include/camera/
\ No newline at end of file
diff --git a/include/camera/Camera.h b/include/camera/Camera.h
deleted file mode 100644
index be793a2..0000000
--- a/include/camera/Camera.h
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAMERA_H
-#define ANDROID_HARDWARE_CAMERA_H
-
-#include <utils/Timers.h>
-
-#include <android/hardware/ICameraService.h>
-
-#include <gui/IGraphicBufferProducer.h>
-#include <system/camera.h>
-#include <camera/ICameraRecordingProxy.h>
-#include <camera/ICameraRecordingProxyListener.h>
-#include <camera/android/hardware/ICamera.h>
-#include <camera/android/hardware/ICameraClient.h>
-#include <camera/CameraBase.h>
-
-namespace android {
-
-class Surface;
-class String8;
-class String16;
-
-// ref-counted object for callbacks
-class CameraListener: virtual public RefBase
-{
-public:
-    virtual void notify(int32_t msgType, int32_t ext1, int32_t ext2) = 0;
-    virtual void postData(int32_t msgType, const sp<IMemory>& dataPtr,
-                          camera_frame_metadata_t *metadata) = 0;
-    virtual void postDataTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr) = 0;
-    virtual void postRecordingFrameHandleTimestamp(nsecs_t timestamp, native_handle_t* handle) = 0;
-};
-
-class Camera;
-
-template <>
-struct CameraTraits<Camera>
-{
-    typedef CameraListener                     TCamListener;
-    typedef ::android::hardware::ICamera       TCamUser;
-    typedef ::android::hardware::ICameraClient TCamCallbacks;
-    typedef ::android::binder::Status(::android::hardware::ICameraService::*TCamConnectService)
-        (const sp<::android::hardware::ICameraClient>&,
-        int, const String16&, int, int,
-        /*out*/
-        sp<::android::hardware::ICamera>*);
-    static TCamConnectService     fnConnectService;
-};
-
-
-class Camera :
-    public CameraBase<Camera>,
-    public ::android::hardware::BnCameraClient
-{
-public:
-    enum {
-        USE_CALLING_UID = ::android::hardware::ICameraService::USE_CALLING_UID
-    };
-    enum {
-        USE_CALLING_PID = ::android::hardware::ICameraService::USE_CALLING_PID
-    };
-
-            // construct a camera client from an existing remote
-    static  sp<Camera>  create(const sp<::android::hardware::ICamera>& camera);
-    static  sp<Camera>  connect(int cameraId,
-                                const String16& clientPackageName,
-                                int clientUid, int clientPid);
-
-    static  status_t  connectLegacy(int cameraId, int halVersion,
-                                     const String16& clientPackageName,
-                                     int clientUid, sp<Camera>& camera);
-
-            virtual     ~Camera();
-
-            status_t    reconnect();
-            status_t    lock();
-            status_t    unlock();
-
-            // pass the buffered IGraphicBufferProducer to the camera service
-            status_t    setPreviewTarget(const sp<IGraphicBufferProducer>& bufferProducer);
-
-            // start preview mode, must call setPreviewTarget first
-            status_t    startPreview();
-
-            // stop preview mode
-            void        stopPreview();
-
-            // get preview state
-            bool        previewEnabled();
-
-            // start recording mode, must call setPreviewTarget first
-            status_t    startRecording();
-
-            // stop recording mode
-            void        stopRecording();
-
-            // get recording state
-            bool        recordingEnabled();
-
-            // release a recording frame
-            void        releaseRecordingFrame(const sp<IMemory>& mem);
-
-            // release a recording frame handle
-            void        releaseRecordingFrameHandle(native_handle_t *handle);
-
-            // autoFocus - status returned from callback
-            status_t    autoFocus();
-
-            // cancel auto focus
-            status_t    cancelAutoFocus();
-
-            // take a picture - picture returned from callback
-            status_t    takePicture(int msgType);
-
-            // set preview/capture parameters - key/value pairs
-            status_t    setParameters(const String8& params);
-
-            // get preview/capture parameters - key/value pairs
-            String8     getParameters() const;
-
-            // send command to camera driver
-            status_t    sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
-
-            // Tell camera how to pass video buffers. videoBufferMode is one of VIDEO_BUFFER_MODE_*.
-            // Returns OK if the specified video buffer mode is supported. If videoBufferMode is
-            // VIDEO_BUFFER_MODE_BUFFER_QUEUE, setVideoTarget() must be called before starting
-            // video recording.
-            status_t    setVideoBufferMode(int32_t videoBufferMode);
-
-            // Set the video buffer producer for camera to use in VIDEO_BUFFER_MODE_BUFFER_QUEUE
-            // mode.
-            status_t    setVideoTarget(const sp<IGraphicBufferProducer>& bufferProducer);
-
-            void        setListener(const sp<CameraListener>& listener);
-            void        setRecordingProxyListener(const sp<ICameraRecordingProxyListener>& listener);
-
-            // Configure preview callbacks to app. Only one of the older
-            // callbacks or the callback surface can be active at the same time;
-            // enabling one will disable the other if active. Flags can be
-            // disabled by calling it with CAMERA_FRAME_CALLBACK_FLAG_NOOP, and
-            // Target by calling it with a NULL interface.
-            void        setPreviewCallbackFlags(int preview_callback_flag);
-            status_t    setPreviewCallbackTarget(
-                    const sp<IGraphicBufferProducer>& callbackProducer);
-
-            sp<ICameraRecordingProxy> getRecordingProxy();
-
-    // ICameraClient interface
-    virtual void        notifyCallback(int32_t msgType, int32_t ext, int32_t ext2);
-    virtual void        dataCallback(int32_t msgType, const sp<IMemory>& dataPtr,
-                                     camera_frame_metadata_t *metadata);
-    virtual void        dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr);
-    virtual void        recordingFrameHandleCallbackTimestamp(nsecs_t timestamp, native_handle_t* handle);
-
-    class RecordingProxy : public BnCameraRecordingProxy
-    {
-    public:
-        RecordingProxy(const sp<Camera>& camera);
-
-        // ICameraRecordingProxy interface
-        virtual status_t startRecording(const sp<ICameraRecordingProxyListener>& listener);
-        virtual void stopRecording();
-        virtual void releaseRecordingFrame(const sp<IMemory>& mem);
-        virtual void releaseRecordingFrameHandle(native_handle_t* handle);
-
-    private:
-        sp<Camera>         mCamera;
-    };
-
-protected:
-                        Camera(int cameraId);
-                        Camera(const Camera&);
-                        Camera& operator=(const Camera);
-
-    sp<ICameraRecordingProxyListener>  mRecordingProxyListener;
-
-    friend class        CameraBase;
-};
-
-}; // namespace android
-
-#endif
diff --git a/include/camera/CameraBase.h b/include/camera/CameraBase.h
deleted file mode 100644
index 41f8621..0000000
--- a/include/camera/CameraBase.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAMERA_BASE_H
-#define ANDROID_HARDWARE_CAMERA_BASE_H
-
-#include <utils/Mutex.h>
-
-struct camera_frame_metadata;
-
-namespace android {
-
-namespace hardware {
-
-
-class ICameraService;
-class ICameraServiceListener;
-
-struct CameraInfo : public android::Parcelable {
-    /**
-     * The direction that the camera faces to. It should be CAMERA_FACING_BACK
-     * or CAMERA_FACING_FRONT.
-     */
-    int facing;
-
-    /**
-     * The orientation of the camera image. The value is the angle that the
-     * camera image needs to be rotated clockwise so it shows correctly on the
-     * display in its natural orientation. It should be 0, 90, 180, or 270.
-     *
-     * For example, suppose a device has a naturally tall screen. The
-     * back-facing camera sensor is mounted in landscape. You are looking at
-     * the screen. If the top side of the camera sensor is aligned with the
-     * right edge of the screen in natural orientation, the value should be
-     * 90. If the top side of a front-facing camera sensor is aligned with the
-     * right of the screen, the value should be 270.
-     */
-    int orientation;
-
-    virtual status_t writeToParcel(Parcel* parcel) const;
-    virtual status_t readFromParcel(const Parcel* parcel);
-
-};
-
-} // namespace hardware
-
-using hardware::CameraInfo;
-
-
-template <typename TCam>
-struct CameraTraits {
-};
-
-template <typename TCam, typename TCamTraits = CameraTraits<TCam> >
-class CameraBase : public IBinder::DeathRecipient
-{
-public:
-    typedef typename TCamTraits::TCamListener       TCamListener;
-    typedef typename TCamTraits::TCamUser           TCamUser;
-    typedef typename TCamTraits::TCamCallbacks      TCamCallbacks;
-    typedef typename TCamTraits::TCamConnectService TCamConnectService;
-
-    static sp<TCam>      connect(int cameraId,
-                                 const String16& clientPackageName,
-                                 int clientUid, int clientPid);
-    virtual void         disconnect();
-
-    void                 setListener(const sp<TCamListener>& listener);
-
-    static int           getNumberOfCameras();
-
-    static status_t      getCameraInfo(int cameraId,
-                                       /*out*/
-                                       struct hardware::CameraInfo* cameraInfo);
-
-    static status_t      addServiceListener(
-        const sp<::android::hardware::ICameraServiceListener>& listener);
-
-    static status_t      removeServiceListener(
-        const sp<::android::hardware::ICameraServiceListener>& listener);
-
-    sp<TCamUser>         remote();
-
-    // Status is set to 'UNKNOWN_ERROR' after successful (re)connection
-    status_t             getStatus();
-
-protected:
-    CameraBase(int cameraId);
-    virtual              ~CameraBase();
-
-    ////////////////////////////////////////////////////////
-    // TCamCallbacks implementation
-    ////////////////////////////////////////////////////////
-    virtual void         notifyCallback(int32_t msgType, int32_t ext,
-                                        int32_t ext2);
-
-    ////////////////////////////////////////////////////////
-    // Common instance variables
-    ////////////////////////////////////////////////////////
-    Mutex                            mLock;
-
-    virtual void                     binderDied(const wp<IBinder>& who);
-
-    // helper function to obtain camera service handle
-    static const sp<::android::hardware::ICameraService> getCameraService();
-
-    sp<TCamUser>                     mCamera;
-    status_t                         mStatus;
-
-    sp<TCamListener>                 mListener;
-
-    const int                        mCameraId;
-
-    typedef CameraBase<TCam>         CameraBaseT;
-};
-
-}; // namespace android
-
-#endif
diff --git a/include/camera/CameraParameters2.h b/include/camera/CameraParameters2.h
deleted file mode 100644
index 88ad812..0000000
--- a/include/camera/CameraParameters2.h
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAMERA_PARAMETERS2_H
-#define ANDROID_HARDWARE_CAMERA_PARAMETERS2_H
-
-#include <utils/Vector.h>
-#include <utils/String8.h>
-#include "CameraParameters.h"
-
-namespace android {
-
-/**
- * A copy of CameraParameters plus ABI-breaking changes. Needed
- * because some camera HALs directly link to CameraParameters and cannot
- * tolerate an ABI change.
- */
-class CameraParameters2
-{
-public:
-    CameraParameters2();
-    CameraParameters2(const String8 &params) { unflatten(params); }
-    ~CameraParameters2();
-
-    String8 flatten() const;
-    void unflatten(const String8 &params);
-
-    void set(const char *key, const char *value);
-    void set(const char *key, int value);
-    void setFloat(const char *key, float value);
-    // Look up string value by key.
-    // -- The string remains valid until the next set/remove of the same key,
-    //    or until the map gets cleared.
-    const char *get(const char *key) const;
-    int getInt(const char *key) const;
-    float getFloat(const char *key) const;
-
-    // Compare the order that key1 was set vs the order that key2 was set.
-    //
-    // Sets the order parameter to an integer less than, equal to, or greater
-    // than zero if key1's set order was respectively, to be less than, to
-    // match, or to be greater than key2's set order.
-    //
-    // Error codes:
-    //  * NAME_NOT_FOUND - if either key has not been set previously
-    //  * BAD_VALUE - if any of the parameters are NULL
-    status_t compareSetOrder(const char *key1, const char *key2,
-            /*out*/
-            int *order) const;
-
-    void remove(const char *key);
-
-    void setPreviewSize(int width, int height);
-    void getPreviewSize(int *width, int *height) const;
-    void getSupportedPreviewSizes(Vector<Size> &sizes) const;
-
-    // Set the dimensions in pixels to the given width and height
-    // for video frames. The given width and height must be one
-    // of the supported dimensions returned from
-    // getSupportedVideoSizes(). Must not be called if
-    // getSupportedVideoSizes() returns an empty Vector of Size.
-    void setVideoSize(int width, int height);
-    // Retrieve the current dimensions (width and height)
-    // in pixels for video frames, which must be one of the
-    // supported dimensions returned from getSupportedVideoSizes().
-    // Must not be called if getSupportedVideoSizes() returns an
-    // empty Vector of Size.
-    void getVideoSize(int *width, int *height) const;
-    // Retrieve a Vector of supported dimensions (width and height)
-    // in pixels for video frames. If sizes returned from the method
-    // is empty, the camera does not support calls to setVideoSize()
-    // or getVideoSize(). In adddition, it also indicates that
-    // the camera only has a single output, and does not have
-    // separate output for video frames and preview frame.
-    void getSupportedVideoSizes(Vector<Size> &sizes) const;
-    // Retrieve the preferred preview size (width and height) in pixels
-    // for video recording. The given width and height must be one of
-    // supported preview sizes returned from getSupportedPreviewSizes().
-    // Must not be called if getSupportedVideoSizes() returns an empty
-    // Vector of Size. If getSupportedVideoSizes() returns an empty
-    // Vector of Size, the width and height returned from this method
-    // is invalid, and is "-1x-1".
-    void getPreferredPreviewSizeForVideo(int *width, int *height) const;
-
-    void setPreviewFrameRate(int fps);
-    int getPreviewFrameRate() const;
-    void getPreviewFpsRange(int *min_fps, int *max_fps) const;
-    void setPreviewFpsRange(int min_fps, int max_fps);
-    void setPreviewFormat(const char *format);
-    const char *getPreviewFormat() const;
-    void setPictureSize(int width, int height);
-    void getPictureSize(int *width, int *height) const;
-    void getSupportedPictureSizes(Vector<Size> &sizes) const;
-    void setPictureFormat(const char *format);
-    const char *getPictureFormat() const;
-
-    void dump() const;
-    status_t dump(int fd, const Vector<String16>& args) const;
-
-private:
-
-    // Quick and dirty map that maintains insertion order
-    template <typename KeyT, typename ValueT>
-    struct OrderedKeyedVector {
-
-        ssize_t add(const KeyT& key, const ValueT& value) {
-            return mList.add(Pair(key, value));
-        }
-
-        size_t size() const {
-            return mList.size();
-        }
-
-        const KeyT& keyAt(size_t idx) const {
-            return mList[idx].mKey;
-        }
-
-        const ValueT& valueAt(size_t idx) const {
-            return mList[idx].mValue;
-        }
-
-        const ValueT& valueFor(const KeyT& key) const {
-            ssize_t i = indexOfKey(key);
-            LOG_ALWAYS_FATAL_IF(i<0, "%s: key not found", __PRETTY_FUNCTION__);
-
-            return valueAt(i);
-        }
-
-        ssize_t indexOfKey(const KeyT& key) const {
-                size_t vectorIdx = 0;
-                for (; vectorIdx < mList.size(); ++vectorIdx) {
-                    if (mList[vectorIdx].mKey == key) {
-                        return (ssize_t) vectorIdx;
-                    }
-                }
-
-                return NAME_NOT_FOUND;
-        }
-
-        ssize_t removeItem(const KeyT& key) {
-            size_t vectorIdx = (size_t) indexOfKey(key);
-
-            if (vectorIdx < 0) {
-                return vectorIdx;
-            }
-
-            return mList.removeAt(vectorIdx);
-        }
-
-        void clear() {
-            mList.clear();
-        }
-
-        // Same as removing and re-adding. The key's index changes to max.
-        ssize_t replaceValueFor(const KeyT& key, const ValueT& value) {
-            removeItem(key);
-            return add(key, value);
-        }
-
-    private:
-
-        struct Pair {
-            Pair() : mKey(), mValue() {}
-            Pair(const KeyT& key, const ValueT& value) :
-                    mKey(key),
-                    mValue(value) {}
-            KeyT   mKey;
-            ValueT mValue;
-        };
-
-        Vector<Pair> mList;
-    };
-
-    /**
-     * Order matters: Keys that are set() later are stored later in the map.
-     *
-     * If two keys have meaning that conflict, then the later-set key
-     * wins.
-     *
-     * For example, preview FPS and preview FPS range conflict since only
-     * we only want to use the FPS range if that's the last thing that was set.
-     * So in that case, only use preview FPS range if it was set later than
-     * the preview FPS.
-     */
-    OrderedKeyedVector<String8,String8>    mMap;
-};
-
-}; // namespace android
-
-#endif
diff --git a/include/camera/CaptureResult.h b/include/camera/CaptureResult.h
deleted file mode 100644
index 45e4518..0000000
--- a/include/camera/CaptureResult.h
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAPTURERESULT_H
-#define ANDROID_HARDWARE_CAPTURERESULT_H
-
-#include <utils/RefBase.h>
-#include <binder/Parcelable.h>
-#include <camera/CameraMetadata.h>
-
-
-namespace android {
-
-namespace hardware {
-namespace camera2 {
-namespace impl {
-
-/**
- * CaptureResultExtras is a structure to encapsulate various indices for a capture result.
- * These indices are framework-internal and not sent to the HAL.
- */
-struct CaptureResultExtras : public android::Parcelable {
-    /**
-     * An integer to index the request sequence that this result belongs to.
-     */
-    int32_t requestId;
-
-    /**
-     * An integer to index this result inside a request sequence, starting from 0.
-     */
-    int32_t burstId;
-
-    /**
-     * TODO: Add documentation for this field.
-     */
-    int32_t afTriggerId;
-
-    /**
-     * TODO: Add documentation for this field.
-     */
-    int32_t precaptureTriggerId;
-
-    /**
-     * A 64bit integer to index the frame number associated with this result.
-     */
-    int64_t frameNumber;
-
-    /**
-     * The partial result count (index) for this capture result.
-     */
-    int32_t partialResultCount;
-
-    /**
-     * For buffer drop errors, the stream ID for the stream that lost a buffer.
-     * Otherwise -1.
-     */
-    int32_t errorStreamId;
-
-    /**
-     * Constructor initializes object as invalid by setting requestId to be -1.
-     */
-    CaptureResultExtras()
-        : requestId(-1),
-          burstId(0),
-          afTriggerId(0),
-          precaptureTriggerId(0),
-          frameNumber(0),
-          partialResultCount(0),
-          errorStreamId(-1) {
-    }
-
-    /**
-     * This function returns true if it's a valid CaptureResultExtras object.
-     * Otherwise, returns false. It is valid only when requestId is non-negative.
-     */
-    bool isValid();
-
-    virtual status_t                readFromParcel(const Parcel* parcel) override;
-    virtual status_t                writeToParcel(Parcel* parcel) const override;
-};
-} // namespace impl
-} // namespace camera2
-} // namespace hardware
-
-using hardware::camera2::impl::CaptureResultExtras;
-
-struct CaptureResult : public virtual LightRefBase<CaptureResult> {
-    CameraMetadata          mMetadata;
-    CaptureResultExtras     mResultExtras;
-
-    CaptureResult();
-
-    CaptureResult(const CaptureResult& otherResult);
-
-    status_t                readFromParcel(Parcel* parcel);
-    status_t                writeToParcel(Parcel* parcel) const;
-};
-
-}
-
-#endif /* ANDROID_HARDWARE_CAPTURERESULT_H */
diff --git a/include/camera/ICameraRecordingProxy.h b/include/camera/ICameraRecordingProxy.h
deleted file mode 100644
index cb6824a..0000000
--- a/include/camera/ICameraRecordingProxy.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_H
-#define ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_H
-
-#include <binder/IInterface.h>
-#include <cutils/native_handle.h>
-#include <utils/RefBase.h>
-
-namespace android {
-
-class ICameraRecordingProxyListener;
-class IMemory;
-class Parcel;
-
-/*
- * The purpose of ICameraRecordingProxy and ICameraRecordingProxyListener is to
- * allow applications using the camera during recording.
- *
- * Camera service allows only one client at a time. Since camcorder application
- * needs to own the camera to do things like zoom, the media recorder cannot
- * access the camera directly during recording. So ICameraRecordingProxy is a
- * proxy of ICamera, which allows the media recorder to start/stop the recording
- * and release recording frames. ICameraRecordingProxyListener is an interface
- * that allows the recorder to receive video frames during recording.
- *
- * ICameraRecordingProxy
- *   startRecording()
- *   stopRecording()
- *   releaseRecordingFrame()
- *
- * ICameraRecordingProxyListener
- *   dataCallbackTimestamp()
-
- * The camcorder app opens the camera and starts the preview. The app passes
- * ICamera and ICameraRecordingProxy to the media recorder by
- * MediaRecorder::setCamera(). The recorder uses ICamera to setup the camera in
- * MediaRecorder::start(). After setup, the recorder disconnects from camera
- * service. The recorder calls ICameraRecordingProxy::startRecording() and
- * passes a ICameraRecordingProxyListener to the app. The app connects back to
- * camera service and starts the recording. The app owns the camera and can do
- * things like zoom. The media recorder receives the video frames from the
- * listener and releases them by ICameraRecordingProxy::releaseRecordingFrame.
- * The recorder calls ICameraRecordingProxy::stopRecording() to stop the
- * recording.
- *
- * The call sequences are as follows:
- * 1. The app: Camera.unlock().
- * 2. The app: MediaRecorder.setCamera().
- * 3. Start recording
- *    (1) The app: MediaRecorder.start().
- *    (2) The recorder: ICamera.unlock() and ICamera.disconnect().
- *    (3) The recorder: ICameraRecordingProxy.startRecording().
- *    (4) The app: ICamera.reconnect().
- *    (5) The app: ICamera.startRecording().
- * 4. During recording
- *    (1) The recorder: receive frames from ICameraRecordingProxyListener.dataCallbackTimestamp()
- *    (2) The recorder: release frames by ICameraRecordingProxy.releaseRecordingFrame().
- * 5. Stop recording
- *    (1) The app: MediaRecorder.stop()
- *    (2) The recorder: ICameraRecordingProxy.stopRecording().
- *    (3) The app: ICamera.stopRecording().
- */
-
-class ICameraRecordingProxy: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(CameraRecordingProxy);
-
-    virtual status_t        startRecording(const sp<ICameraRecordingProxyListener>& listener) = 0;
-    virtual void            stopRecording() = 0;
-    virtual void            releaseRecordingFrame(const sp<IMemory>& mem) = 0;
-    virtual void            releaseRecordingFrameHandle(native_handle_t *handle) = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnCameraRecordingProxy: public BnInterface<ICameraRecordingProxy>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-}; // namespace android
-
-#endif
diff --git a/include/camera/ICameraRecordingProxyListener.h b/include/camera/ICameraRecordingProxyListener.h
deleted file mode 100644
index 1fee5b9..0000000
--- a/include/camera/ICameraRecordingProxyListener.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_LISTENER_H
-#define ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_LISTENER_H
-
-#include <binder/IInterface.h>
-#include <cutils/native_handle.h>
-#include <stdint.h>
-#include <utils/RefBase.h>
-#include <utils/Timers.h>
-
-namespace android {
-
-class Parcel;
-class IMemory;
-
-class ICameraRecordingProxyListener: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(CameraRecordingProxyListener);
-
-    virtual void dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType,
-                                       const sp<IMemory>& data) = 0;
-
-    virtual void recordingFrameHandleCallbackTimestamp(nsecs_t timestamp,
-                                                       native_handle_t* handle) = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnCameraRecordingProxyListener: public BnInterface<ICameraRecordingProxyListener>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-}; // namespace android
-
-#endif
diff --git a/include/camera/VendorTagDescriptor.h b/include/camera/VendorTagDescriptor.h
deleted file mode 100644
index 60e2d2d..0000000
--- a/include/camera/VendorTagDescriptor.h
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef VENDOR_TAG_DESCRIPTOR_H
-
-#include <binder/Parcelable.h>
-#include <utils/Vector.h>
-#include <utils/KeyedVector.h>
-#include <utils/String8.h>
-#include <utils/RefBase.h>
-#include <system/camera_vendor_tags.h>
-
-#include <stdint.h>
-
-namespace android {
-
-class VendorTagDescriptor;
-
-namespace hardware {
-namespace camera2 {
-namespace params {
-
-/**
- * VendorTagDescriptor objects are parcelable containers for the vendor tag
- * definitions provided, and are typically used to pass the vendor tag
- * information enumerated by the HAL to clients of the camera service.
- */
-class VendorTagDescriptor : public Parcelable {
-    public:
-        virtual ~VendorTagDescriptor();
-
-        VendorTagDescriptor();
-        VendorTagDescriptor(const VendorTagDescriptor& src);
-        VendorTagDescriptor& operator=(const VendorTagDescriptor& rhs);
-
-        void copyFrom(const VendorTagDescriptor& src);
-
-        /**
-         * The following 'get*' methods implement the corresponding
-         * functions defined in
-         * system/media/camera/include/system/camera_vendor_tags.h
-         */
-
-        // Returns the number of vendor tags defined.
-        int getTagCount() const;
-
-        // Returns an array containing the id's of vendor tags defined.
-        void getTagArray(uint32_t* tagArray) const;
-
-        // Returns the section name string for a given vendor tag id.
-        const char* getSectionName(uint32_t tag) const;
-
-        // Returns the tag name string for a given vendor tag id.
-        const char* getTagName(uint32_t tag) const;
-
-        // Returns the tag type for a given vendor tag id.
-        int getTagType(uint32_t tag) const;
-
-        /**
-         * Write the VendorTagDescriptor object into the given parcel.
-         *
-         * Returns OK on success, or a negative error code.
-         */
-        virtual status_t writeToParcel(
-                /*out*/
-                Parcel* parcel) const override;
-
-        /**
-         * Convenience method to get a vector containing all vendor tag
-         * sections, or an empty vector if none are defined.
-         * The pointer is valid for the lifetime of the VendorTagDescriptor,
-         * or until readParcel or copyFrom is invoked.
-         */
-        const SortedVector<String8>* getAllSectionNames() const;
-
-        /**
-         * Lookup the tag id for a given tag name and section.
-         *
-         * Returns OK on success, or a negative error code.
-         */
-        status_t lookupTag(String8 name, String8 section, /*out*/uint32_t* tag) const;
-
-        /**
-         * Dump the currently configured vendor tags to a file descriptor.
-         */
-        void dump(int fd, int verbosity, int indentation) const;
-
-        /**
-         * Read values VendorTagDescriptor object from the given parcel.
-         *
-         * Returns OK on success, or a negative error code.
-         */
-        virtual status_t readFromParcel(const Parcel* parcel) override;
-
-    protected:
-        KeyedVector<String8, KeyedVector<String8, uint32_t>*> mReverseMapping;
-        KeyedVector<uint32_t, String8> mTagToNameMap;
-        KeyedVector<uint32_t, uint32_t> mTagToSectionMap; // Value is offset in mSections
-        KeyedVector<uint32_t, int32_t> mTagToTypeMap;
-        SortedVector<String8> mSections;
-        // must be int32_t to be compatible with Parcel::writeInt32
-        int32_t mTagCount;
-
-        vendor_tag_ops mVendorOps;
-};
-} /* namespace params */
-} /* namespace camera2 */
-} /* namespace hardware */
-
-/**
- * This version of VendorTagDescriptor must be stored in Android sp<>, and adds support for using it
- * as a global tag descriptor.
- *
- * It's a child class of the basic hardware::camera2::params::VendorTagDescriptor since basic
- * Parcelable objects cannot require being kept in an sp<> and still work with auto-generated AIDL
- * interface implementations.
- */
-class VendorTagDescriptor :
-            public ::android::hardware::camera2::params::VendorTagDescriptor,
-            public LightRefBase<VendorTagDescriptor> {
-
-  public:
-
-    /**
-     * Create a VendorTagDescriptor object from the given vendor_tag_ops_t
-     * struct.
-     *
-     * Returns OK on success, or a negative error code.
-     */
-    static status_t createDescriptorFromOps(const vendor_tag_ops_t* vOps,
-            /*out*/
-            sp<VendorTagDescriptor>& descriptor);
-
-    /**
-     * Sets the global vendor tag descriptor to use for this process.
-     * Camera metadata operations that access vendor tags will use the
-     * vendor tag definitions set this way.
-     *
-     * Returns OK on success, or a negative error code.
-     */
-    static status_t setAsGlobalVendorTagDescriptor(const sp<VendorTagDescriptor>& desc);
-
-    /**
-     * Returns the global vendor tag descriptor used by this process.
-     * This will contain NULL if no vendor tags are defined.
-     */
-    static sp<VendorTagDescriptor> getGlobalVendorTagDescriptor();
-
-    /**
-     * Clears the global vendor tag descriptor used by this process.
-     */
-    static void clearGlobalVendorTagDescriptor();
-
-};
-
-} /* namespace android */
-
-
-#define VENDOR_TAG_DESCRIPTOR_H
-#endif /* VENDOR_TAG_DESCRIPTOR_H */
diff --git a/include/camera/android/hardware/ICamera.h b/include/camera/android/hardware/ICamera.h
deleted file mode 100644
index 3b12afe..0000000
--- a/include/camera/android/hardware/ICamera.h
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_ICAMERA_H
-#define ANDROID_HARDWARE_ICAMERA_H
-
-#include <utils/RefBase.h>
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-#include <binder/IMemory.h>
-#include <binder/Status.h>
-#include <utils/String8.h>
-
-namespace android {
-
-class IGraphicBufferProducer;
-class Surface;
-
-namespace hardware {
-
-class ICameraClient;
-
-class ICamera: public IInterface
-{
-    /**
-     * Keep up-to-date with ICamera.aidl in frameworks/base
-     */
-public:
-    enum {
-        // Pass real YUV data in video buffers through ICameraClient.dataCallbackTimestamp().
-        VIDEO_BUFFER_MODE_DATA_CALLBACK_YUV = 0,
-        // Pass metadata in video buffers through ICameraClient.dataCallbackTimestamp().
-        VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA = 1,
-        // Pass video buffers through IGraphicBufferProducer set with setVideoTarget().
-        VIDEO_BUFFER_MODE_BUFFER_QUEUE = 2,
-    };
-
-    DECLARE_META_INTERFACE(Camera);
-
-    virtual binder::Status  disconnect() = 0;
-
-    // connect new client with existing camera remote
-    virtual status_t        connect(const sp<ICameraClient>& client) = 0;
-
-    // prevent other processes from using this ICamera interface
-    virtual status_t        lock() = 0;
-
-    // allow other processes to use this ICamera interface
-    virtual status_t        unlock() = 0;
-
-    // pass the buffered IGraphicBufferProducer to the camera service
-    virtual status_t        setPreviewTarget(
-            const sp<IGraphicBufferProducer>& bufferProducer) = 0;
-
-    // set the preview callback flag to affect how the received frames from
-    // preview are handled. Enabling preview callback flags disables any active
-    // preview callback surface set by setPreviewCallbackTarget().
-    virtual void            setPreviewCallbackFlag(int flag) = 0;
-    // set a buffer interface to use for client-received preview frames instead
-    // of preview callback buffers. Passing a valid interface here disables any
-    // active preview callbacks set by setPreviewCallbackFlag(). Passing NULL
-    // disables the use of the callback target.
-    virtual status_t        setPreviewCallbackTarget(
-            const sp<IGraphicBufferProducer>& callbackProducer) = 0;
-
-    // start preview mode, must call setPreviewTarget first
-    virtual status_t        startPreview() = 0;
-
-    // stop preview mode
-    virtual void            stopPreview() = 0;
-
-    // get preview state
-    virtual bool            previewEnabled() = 0;
-
-    // start recording mode
-    virtual status_t        startRecording() = 0;
-
-    // stop recording mode
-    virtual void            stopRecording() = 0;
-
-    // get recording state
-    virtual bool            recordingEnabled() = 0;
-
-    // Release a recording frame that was received via ICameraClient::dataCallbackTimestamp.
-    virtual void            releaseRecordingFrame(const sp<IMemory>& mem) = 0;
-
-    // Release a recording frame handle that was received via
-    // ICameraClient::recordingFrameHandleCallbackTimestamp.
-    virtual void            releaseRecordingFrameHandle(native_handle_t *handle) = 0;
-
-    // auto focus
-    virtual status_t        autoFocus() = 0;
-
-    // cancel auto focus
-    virtual status_t        cancelAutoFocus() = 0;
-
-    /*
-     * take a picture.
-     * @param msgType the message type an application selectively turn on/off
-     * on a photo-by-photo basis. The supported message types are:
-     * CAMERA_MSG_SHUTTER, CAMERA_MSG_RAW_IMAGE, CAMERA_MSG_COMPRESSED_IMAGE,
-     * and CAMERA_MSG_POSTVIEW_FRAME. Any other message types will be ignored.
-     */
-    virtual status_t        takePicture(int msgType) = 0;
-
-    // set preview/capture parameters - key/value pairs
-    virtual status_t        setParameters(const String8& params) = 0;
-
-    // get preview/capture parameters - key/value pairs
-    virtual String8         getParameters() const = 0;
-
-    // send command to camera driver
-    virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0;
-
-
-    // Tell camera how to pass video buffers. videoBufferMode is one of VIDEO_BUFFER_MODE_*.
-    // Returns OK if the specified video buffer mode is supported. If videoBufferMode is
-    // VIDEO_BUFFER_MODE_BUFFER_QUEUE, setVideoTarget() must be called before starting video
-    // recording.
-    virtual status_t        setVideoBufferMode(int32_t videoBufferMode) = 0;
-
-    // Set the video buffer producer for camera to use in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
-    virtual status_t        setVideoTarget(
-            const sp<IGraphicBufferProducer>& bufferProducer) = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnCamera: public BnInterface<ICamera>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-} // namespace hardware
-} // namespace android
-
-#endif
diff --git a/include/camera/android/hardware/ICameraClient.h b/include/camera/android/hardware/ICameraClient.h
deleted file mode 100644
index 3f835a9..0000000
--- a/include/camera/android/hardware/ICameraClient.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_ICAMERA_APP_H
-#define ANDROID_HARDWARE_ICAMERA_APP_H
-
-#include <utils/RefBase.h>
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-#include <binder/IMemory.h>
-#include <utils/Timers.h>
-#include <system/camera.h>
-
-namespace android {
-namespace hardware {
-
-class ICameraClient: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(CameraClient);
-
-    virtual void            notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2) = 0;
-    virtual void            dataCallback(int32_t msgType, const sp<IMemory>& data,
-                                         camera_frame_metadata_t *metadata) = 0;
-    virtual void            dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& data) = 0;
-
-    // Invoked to send a recording frame handle with a timestamp. Call
-    // ICamera::releaseRecordingFrameHandle to release the frame handle.
-    virtual void            recordingFrameHandleCallbackTimestamp(nsecs_t timestamp,
-                                         native_handle_t* handle) = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnCameraClient: public BnInterface<ICameraClient>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-} // namespace hardware
-} // namespace android
-
-#endif
diff --git a/include/camera/camera2/CaptureRequest.h b/include/camera/camera2/CaptureRequest.h
deleted file mode 100644
index c989f26..0000000
--- a/include/camera/camera2/CaptureRequest.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_PHOTOGRAPHY_CAPTUREREQUEST_H
-#define ANDROID_HARDWARE_PHOTOGRAPHY_CAPTUREREQUEST_H
-
-#include <utils/RefBase.h>
-#include <utils/Vector.h>
-#include <binder/Parcelable.h>
-#include <camera/CameraMetadata.h>
-
-namespace android {
-
-class Surface;
-
-namespace hardware {
-namespace camera2 {
-
-struct CaptureRequest : public Parcelable {
-    CameraMetadata          mMetadata;
-    Vector<sp<Surface> >    mSurfaceList;
-    bool                    mIsReprocess;
-
-    /**
-     * Keep impl up-to-date with CaptureRequest.java in frameworks/base
-     */
-    status_t                readFromParcel(const Parcel* parcel) override;
-    status_t                writeToParcel(Parcel* parcel) const override;
-};
-
-} // namespace camera2
-} // namespace hardware
-
-struct CaptureRequest :
-        public RefBase, public hardware::camera2::CaptureRequest {
-  public:
-    // Same as android::hardware::camera2::CaptureRequest, except that you can
-    // put this in an sp<>
-};
-
-} // namespace android
-
-#endif
diff --git a/include/camera/camera2/OutputConfiguration.h b/include/camera/camera2/OutputConfiguration.h
deleted file mode 100644
index cf8f3c6..0000000
--- a/include/camera/camera2/OutputConfiguration.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAMERA2_OUTPUTCONFIGURATION_H
-#define ANDROID_HARDWARE_CAMERA2_OUTPUTCONFIGURATION_H
-
-#include <gui/IGraphicBufferProducer.h>
-#include <binder/Parcelable.h>
-
-namespace android {
-
-class Surface;
-
-namespace hardware {
-namespace camera2 {
-namespace params {
-
-class OutputConfiguration : public android::Parcelable {
-public:
-
-    static const int INVALID_ROTATION;
-    static const int INVALID_SET_ID;
-    enum SurfaceType{
-        SURFACE_TYPE_UNKNOWN = -1,
-        SURFACE_TYPE_SURFACE_VIEW = 0,
-        SURFACE_TYPE_SURFACE_TEXTURE = 1
-    };
-    sp<IGraphicBufferProducer> getGraphicBufferProducer() const;
-    int                        getRotation() const;
-    int                        getSurfaceSetID() const;
-    int                        getSurfaceType() const;
-    int                        getWidth() const;
-    int                        getHeight() const;
-    /**
-     * Keep impl up-to-date with OutputConfiguration.java in frameworks/base
-     */
-    virtual status_t           writeToParcel(Parcel* parcel) const override;
-
-    virtual status_t           readFromParcel(const Parcel* parcel) override;
-
-    // getGraphicBufferProducer will be NULL
-    // getRotation will be INVALID_ROTATION
-    // getSurfaceSetID will be INVALID_SET_ID
-    OutputConfiguration();
-
-    // getGraphicBufferProducer will be NULL if error occurred
-    // getRotation will be INVALID_ROTATION if error occurred
-    // getSurfaceSetID will be INVALID_SET_ID if error occurred
-    OutputConfiguration(const Parcel& parcel);
-
-    OutputConfiguration(sp<IGraphicBufferProducer>& gbp, int rotation,
-            int surfaceSetID = INVALID_SET_ID);
-
-    bool operator == (const OutputConfiguration& other) const {
-        return (mGbp == other.mGbp &&
-                mRotation == other.mRotation &&
-                mSurfaceSetID == other.mSurfaceSetID &&
-                mSurfaceType == other.mSurfaceType &&
-                mWidth == other.mWidth &&
-                mHeight == other.mHeight);
-    }
-    bool operator != (const OutputConfiguration& other) const {
-        return !(*this == other);
-    }
-    bool operator < (const OutputConfiguration& other) const {
-        if (*this == other) return false;
-        if (mGbp != other.mGbp) return mGbp < other.mGbp;
-        if (mSurfaceSetID != other.mSurfaceSetID) {
-            return mSurfaceSetID < other.mSurfaceSetID;
-        }
-        if (mSurfaceType != other.mSurfaceType) {
-            return mSurfaceType < other.mSurfaceType;
-        }
-        if (mWidth != other.mWidth) {
-            return mWidth < other.mWidth;
-        }
-        if (mHeight != other.mHeight) {
-            return mHeight < other.mHeight;
-        }
-
-        return mRotation < other.mRotation;
-    }
-    bool operator > (const OutputConfiguration& other) const {
-        return (*this != other && !(*this < other));
-    }
-
-private:
-    sp<IGraphicBufferProducer> mGbp;
-    int                        mRotation;
-    int                        mSurfaceSetID;
-    int                        mSurfaceType;
-    int                        mWidth;
-    int                        mHeight;
-    // helper function
-    static String16 readMaybeEmptyString16(const Parcel* parcel);
-};
-} // namespace params
-} // namespace camera2
-} // namespace hardware
-
-
-using hardware::camera2::params::OutputConfiguration;
-
-}; // namespace android
-
-#endif
diff --git a/include/camera/camera2/SubmitInfo.h b/include/camera/camera2/SubmitInfo.h
deleted file mode 100644
index 3b47b32..0000000
--- a/include/camera/camera2/SubmitInfo.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAMERA2_UTIL_SUBMITINFO_H
-#define ANDROID_HARDWARE_CAMERA2_UTIL_SUBMITINFO_H
-
-#include <binder/Parcel.h>
-#include <binder/Parcelable.h>
-
-namespace android {
-namespace hardware {
-namespace camera2 {
-namespace utils {
-
-struct SubmitInfo : public android::Parcelable {
-public:
-
-    int32_t mRequestId;
-    int64_t mLastFrameNumber;
-
-    virtual status_t writeToParcel(Parcel *parcel) const override;
-    virtual status_t readFromParcel(const Parcel* parcel) override;
-
-};
-
-} // namespace utils
-} // namespace camera2
-} // namespace hardware
-} // namespace android
-
-#endif
diff --git a/include/camera/ndk/NdkCameraCaptureSession.h b/include/camera/ndk/NdkCameraCaptureSession.h
deleted file mode 100644
index 7b314e9..0000000
--- a/include/camera/ndk/NdkCameraCaptureSession.h
+++ /dev/null
@@ -1,597 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @addtogroup Camera
- * @{
- */
-
-/**
- * @file NdkCameraCaptureSession.h
- */
-
-/*
- * This file defines an NDK API.
- * Do not remove methods.
- * Do not change method signatures.
- * Do not change the value of constants.
- * Do not change the size of any of the classes defined in here.
- * Do not reference types that are not part of the NDK.
- * Do not #include files that aren't part of the NDK.
- */
-#include <android/native_window.h>
-#include "NdkCameraError.h"
-#include "NdkCameraMetadata.h"
-
-#ifndef _NDK_CAMERA_CAPTURE_SESSION_H
-#define _NDK_CAMERA_CAPTURE_SESSION_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * ACameraCaptureSession is an opaque type that manages frame captures of a camera device.
- *
- * A pointer can be obtained using {@link ACameraDevice_createCaptureSession} method.
- */
-typedef struct ACameraCaptureSession ACameraCaptureSession;
-
-/**
- * The definition of camera capture session state callback.
- *
- * @param context The optional application context provided by user in
- *                {@link ACameraCaptureSession_stateCallbacks}.
- * @param session The camera capture session whose state is changing.
- */
-typedef void (*ACameraCaptureSession_stateCallback)(void* context, ACameraCaptureSession *session);
-
-typedef struct ACameraCaptureSession_stateCallbacks {
-    /// optional application context.
-    void*                               context;
-
-    /**
-     * This callback is called when the session is closed and deleted from memory.
-     *
-     * <p>A session is closed when {@link ACameraCaptureSession_close} is called, a new session
-     * is created by the parent camera device,
-     * or when the parent camera device is closed (either by the user closing the device,
-     * or due to a camera device disconnection or fatal error).</p>
-     *
-     * <p>Once this callback is called, all access to this ACameraCaptureSession object will cause
-     * a crash.</p>
-     */
-    ACameraCaptureSession_stateCallback onClosed;
-
-    /**
-     * This callback is called every time the session has no more capture requests to process.
-     *
-     * <p>This callback will be invoked any time the session finishes processing
-     * all of its active capture requests, and no repeating request or burst is set up.</p>
-     */
-    ACameraCaptureSession_stateCallback onReady;
-
-    /**
-     * This callback is called when the session starts actively processing capture requests.
-     *
-     * <p>If the session runs out of capture requests to process and calls {@link onReady},
-     * then this callback will be invoked again once new requests are submitted for capture.</p>
-     */
-    ACameraCaptureSession_stateCallback onActive;
-} ACameraCaptureSession_stateCallbacks;
-
-/// Enum for describing error reason in {@link ACameraCaptureFailure}
-enum {
-    /**
-     * The capture session has dropped this frame due to an
-     * {@link ACameraCaptureSession_abortCaptures} call.
-     */
-    CAPTURE_FAILURE_REASON_FLUSHED = 0,
-
-    /**
-     * The capture session has dropped this frame due to an error in the framework.
-     */
-    CAPTURE_FAILURE_REASON_ERROR
-};
-
-/// Struct to describe a capture failure
-typedef struct ACameraCaptureFailure {
-    /**
-     * The frame number associated with this failed capture.
-     *
-     * <p>Whenever a request has been processed, regardless of failed capture or success,
-     * it gets a unique frame number assigned to its future result/failed capture.</p>
-     *
-     * <p>This value monotonically increments, starting with 0,
-     * for every new result or failure; and the scope is the lifetime of the
-     * {@link ACameraDevice}.</p>
-     */
-    int64_t frameNumber;
-
-    /**
-     * Determine why the request was dropped, whether due to an error or to a user
-     * action.
-     *
-     * @see CAPTURE_FAILURE_REASON_ERROR
-     * @see CAPTURE_FAILURE_REASON_FLUSHED
-     */
-    int     reason;
-
-    /**
-     * The sequence ID for this failed capture that was returned by the
-     * {@link ACameraCaptureSession_capture} or {@link ACameraCaptureSession_setRepeatingRequest}.
-     *
-     * <p>The sequence ID is a unique monotonically increasing value starting from 0,
-     * incremented every time a new group of requests is submitted to the ACameraDevice.</p>
-     */
-    int     sequenceId;
-
-    /**
-     * Determine if the image was captured from the camera.
-     *
-     * <p>If the image was not captured, no image buffers will be available.
-     * If the image was captured, then image buffers may be available.</p>
-     *
-     */
-    bool    wasImageCaptured;
-} ACameraCaptureFailure;
-
-/**
- * The definition of camera capture start callback.
- *
- * @param context The optional application context provided by user in
- *                {@link ACameraCaptureSession_captureCallbacks}.
- * @param session The camera capture session of interest.
- * @param request The capture request that is starting. Note that this pointer points to a copy of
- *                capture request sent by application, so the address is different to what
- *                application sent but the content will match. This request will be freed by
- *                framework immediately after this callback returns.
- * @param timestamp The timestamp when the capture is started. This timestmap will match
- *                  {@link ACAMERA_SENSOR_TIMESTAMP} of the {@link ACameraMetadata} in
- *                  {@link ACameraCaptureSession_captureCallbacks#onCaptureCompleted} callback.
- */
-typedef void (*ACameraCaptureSession_captureCallback_start)(
-        void* context, ACameraCaptureSession* session,
-        const ACaptureRequest* request, int64_t timestamp);
-
-/**
- * The definition of camera capture progress/result callback.
- *
- * @param context The optional application context provided by user in
- *                {@link ACameraCaptureSession_captureCallbacks}.
- * @param session The camera capture session of interest.
- * @param request The capture request of interest. Note that this pointer points to a copy of
- *                capture request sent by application, so the address is different to what
- *                application sent but the content will match. This request will be freed by
- *                framework immediately after this callback returns.
- * @param result The capture result metadata reported by camera device. The memory is managed by
- *                camera framework. Do not access this pointer after this callback returns.
- */
-typedef void (*ACameraCaptureSession_captureCallback_result)(
-        void* context, ACameraCaptureSession* session,
-        ACaptureRequest* request, const ACameraMetadata* result);
-
-/**
- * The definition of camera capture failure callback.
- *
- * @param context The optional application context provided by user in
- *                {@link ACameraCaptureSession_captureCallbacks}.
- * @param session The camera capture session of interest.
- * @param request The capture request of interest. Note that this pointer points to a copy of
- *                capture request sent by application, so the address is different to what
- *                application sent but the content will match. This request will be freed by
- *                framework immediately after this callback returns.
- * @param failure The {@link ACameraCaptureFailure} desribes the capture failure. The memory is
- *                managed by camera framework. Do not access this pointer after this callback
- *                returns.
- */
-typedef void (*ACameraCaptureSession_captureCallback_failed)(
-        void* context, ACameraCaptureSession* session,
-        ACaptureRequest* request, ACameraCaptureFailure* failure);
-
-/**
- * The definition of camera sequence end callback.
- *
- * @param context The optional application context provided by user in
- *                {@link ACameraCaptureSession_captureCallbacks}.
- * @param session The camera capture session of interest.
- * @param sequenceId The capture sequence ID of the finished sequence.
- * @param frameNumber The frame number of the last frame of this sequence.
- */
-typedef void (*ACameraCaptureSession_captureCallback_sequenceEnd)(
-        void* context, ACameraCaptureSession* session,
-        int sequenceId, int64_t frameNumber);
-
-/**
- * The definition of camera sequence aborted callback.
- *
- * @param context The optional application context provided by user in
- *                {@link ACameraCaptureSession_captureCallbacks}.
- * @param session The camera capture session of interest.
- * @param sequenceId The capture sequence ID of the aborted sequence.
- */
-typedef void (*ACameraCaptureSession_captureCallback_sequenceAbort)(
-        void* context, ACameraCaptureSession* session,
-        int sequenceId);
-
-/**
- * The definition of camera buffer lost callback.
- *
- * @param context The optional application context provided by user in
- *                {@link ACameraCaptureSession_captureCallbacks}.
- * @param session The camera capture session of interest.
- * @param request The capture request of interest. Note that this pointer points to a copy of
- *                capture request sent by application, so the address is different to what
- *                application sent but the content will match. This request will be freed by
- *                framework immediately after this callback returns.
- * @param window The {@link ANativeWindow} that the lost buffer would have been sent to.
- * @param frameNumber The frame number of the lost buffer.
- */
-typedef void (*ACameraCaptureSession_captureCallback_bufferLost)(
-        void* context, ACameraCaptureSession* session,
-        ACaptureRequest* request, ANativeWindow* window, int64_t frameNumber);
-
-typedef struct ACameraCaptureSession_captureCallbacks {
-    /// optional application context.
-    void*                                               context;
-
-    /**
-     * This callback is called when the camera device has started capturing
-     * the output image for the request, at the beginning of image exposure.
-     *
-     * <p>This callback is invoked right as
-     * the capture of a frame begins, so it is the most appropriate time
-     * for playing a shutter sound, or triggering UI indicators of capture.</p>
-     *
-     * <p>The request that is being used for this capture is provided, along
-     * with the actual timestamp for the start of exposure.
-     * This timestamp matches the timestamps that will be
-     * included in {@link ACAMERA_SENSOR_TIMESTAMP} of the {@link ACameraMetadata} in
-     * {@link onCaptureCompleted} callback,
-     * and in the buffers sent to each output ANativeWindow. These buffer
-     * timestamps are accessible through, for example,
-     * {@link AImage_getTimestamp} or
-     * <a href="http://developer.android.com/reference/android/graphics/SurfaceTexture.html#getTimestamp()">
-     * android.graphics.SurfaceTexture#getTimestamp()</a>.</p>
-     *
-     * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
-     * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
-     *
-     */
-    ACameraCaptureSession_captureCallback_start         onCaptureStarted;
-
-    /**
-     * This callback is called when an image capture makes partial forward progress; some
-     * (but not all) results from an image capture are available.
-     *
-     * <p>The result provided here will contain some subset of the fields of
-     * a full result. Multiple {@link onCaptureProgressed} calls may happen per
-     * capture; a given result field will only be present in one partial
-     * capture at most. The final {@link onCaptureCompleted} call will always
-     * contain all the fields (in particular, the union of all the fields of all
-     * the partial results composing the total result).</p>
-     *
-     * <p>For each request, some result data might be available earlier than others. The typical
-     * delay between each partial result (per request) is a single frame interval.
-     * For performance-oriented use-cases, applications should query the metadata they need
-     * to make forward progress from the partial results and avoid waiting for the completed
-     * result.</p>
-     *
-     * <p>For a particular request, {@link onCaptureProgressed} may happen before or after
-     * {@link onCaptureStarted}.</p>
-     *
-     * <p>Each request will generate at least `1` partial results, and at most
-     * {@link ACAMERA_REQUEST_PARTIAL_RESULT_COUNT} partial results.</p>
-     *
-     * <p>Depending on the request settings, the number of partial results per request
-     * will vary, although typically the partial count could be the same as long as the
-     * camera device subsystems enabled stay the same.</p>
-     *
-     * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
-     * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
-     */
-    ACameraCaptureSession_captureCallback_result        onCaptureProgressed;
-
-    /**
-     * This callback is called when an image capture has fully completed and all the
-     * result metadata is available.
-     *
-     * <p>This callback will always fire after the last {@link onCaptureProgressed};
-     * in other words, no more partial results will be delivered once the completed result
-     * is available.</p>
-     *
-     * <p>For performance-intensive use-cases where latency is a factor, consider
-     * using {@link onCaptureProgressed} instead.</p>
-     *
-     * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
-     * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
-     */
-    ACameraCaptureSession_captureCallback_result        onCaptureCompleted;
-
-    /**
-     * This callback is called instead of {@link onCaptureCompleted} when the
-     * camera device failed to produce a capture result for the
-     * request.
-     *
-     * <p>Other requests are unaffected, and some or all image buffers from
-     * the capture may have been pushed to their respective output
-     * streams.</p>
-     *
-     * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
-     * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
-     *
-     * @see ACameraCaptureFailure
-     */
-    ACameraCaptureSession_captureCallback_failed        onCaptureFailed;
-
-    /**
-     * This callback is called independently of the others in {@link ACameraCaptureSession_captureCallbacks},
-     * when a capture sequence finishes and all capture result
-     * or capture failure for it have been returned via this {@link ACameraCaptureSession_captureCallbacks}.
-     *
-     * <p>In total, there will be at least one result/failure returned by this listener
-     * before this callback is invoked. If the capture sequence is aborted before any
-     * requests have been processed, {@link onCaptureSequenceAborted} is invoked instead.</p>
-     */
-    ACameraCaptureSession_captureCallback_sequenceEnd   onCaptureSequenceCompleted;
-
-    /**
-     * This callback is called independently of the others in {@link ACameraCaptureSession_captureCallbacks},
-     * when a capture sequence aborts before any capture result
-     * or capture failure for it have been returned via this {@link ACameraCaptureSession_captureCallbacks}.
-     *
-     * <p>Due to the asynchronous nature of the camera device, not all submitted captures
-     * are immediately processed. It is possible to clear out the pending requests
-     * by a variety of operations such as {@link ACameraCaptureSession_stopRepeating} or
-     * {@link ACameraCaptureSession_abortCaptures}. When such an event happens,
-     * {@link onCaptureSequenceCompleted} will not be called.</p>
-     */
-    ACameraCaptureSession_captureCallback_sequenceAbort onCaptureSequenceAborted;
-
-    /**
-     * This callback is called if a single buffer for a capture could not be sent to its
-     * destination ANativeWindow.
-     *
-     * <p>If the whole capture failed, then {@link onCaptureFailed} will be called instead. If
-     * some but not all buffers were captured but the result metadata will not be available,
-     * then onCaptureFailed will be invoked with {@link ACameraCaptureFailure#wasImageCaptured}
-     * returning true, along with one or more calls to {@link onCaptureBufferLost} for the
-     * failed outputs.</p>
-     *
-     * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
-     * submitted, but the contents the ACaptureRequest will match what application submitted.
-     * The ANativeWindow pointer will always match what application submitted in
-     * {@link ACameraDevice_createCaptureSession}</p>
-     *
-     */
-    ACameraCaptureSession_captureCallback_bufferLost    onCaptureBufferLost;
-} ACameraCaptureSession_captureCallbacks;
-
-enum {
-    CAPTURE_SEQUENCE_ID_NONE = -1
-};
-
-/**
- * Close this capture session.
- *
- * <p>Closing a session frees up the target output Surfaces of the session for reuse with either
- * a new session, or to other APIs that can draw to Surfaces.</p>
- *
- * <p>Note that creating a new capture session with {@link ACameraDevice_createCaptureSession}
- * will close any existing capture session automatically, and call the older session listener's
- * {@link ACameraCaptureSession_stateCallbacks#onClosed} callback. Using
- * {@link ACameraDevice_createCaptureSession} directly without closing is the recommended approach
- * for quickly switching to a new session, since unchanged target outputs can be reused more
- * efficiently.</p>
- *
- * <p>After a session is closed and before {@link ACameraCaptureSession_stateCallbacks#onClosed}
- * is called, all methods invoked on the session will return {@link ACAMERA_ERROR_SESSION_CLOSED},
- * and any repeating requests are stopped (as if {@link ACameraCaptureSession_stopRepeating} was
- * called). However, any in-progress capture requests submitted to the session will be completed as
- * normal; once all captures have completed and the session has been torn down,
- * {@link ACameraCaptureSession_stateCallbacks#onClosed} callback will be called and the seesion
- * will be removed from memory.</p>
- *
- * <p>Closing a session is idempotent; closing more than once has no effect.</p>
- *
- * @param session the capture session of interest
- */
-void ACameraCaptureSession_close(ACameraCaptureSession* session);
-
-struct ACameraDevice;
-typedef struct ACameraDevice ACameraDevice;
-
-/**
- * Get the ACameraDevice pointer associated with this capture session in the device argument
- * if the method succeeds.
- *
- * @param session the capture session of interest
- * @param device the {@link ACameraDevice} associated with session. Will be set to NULL
- *        if the session is closed or this method fails.
- * @return <ul><li>
- *             {@link ACAMERA_OK} if the method call succeeds. The {@link ACameraDevice}
- *                                will be stored in device argument</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session or device is NULL</li>
- *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
- *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
- *
- */
-camera_status_t ACameraCaptureSession_getDevice(
-        ACameraCaptureSession* session, /*out*/ACameraDevice** device);
-
-/**
- * Submit an array of requests to be captured in sequence as a burst in the minimum of time possible.
- *
- * <p>The burst will be captured in the minimum amount of time possible, and will not be
- * interleaved with requests submitted by other capture or repeat calls.</p>
- *
- * <p>Each capture produces one {@link ACameraMetadata} as a capture result and image buffers for
- * one or more target {@link ANativeWindow}s. The target ANativeWindows (set with
- * {@link ACaptureRequest_addTarget}) must be a subset of the ANativeWindow provided when
- * this capture session was created.</p>
- *
- * @param session the capture session of interest
- * @param callbacks the {@link ACameraCaptureSession_captureCallbacks} to be associated this capture
- *        sequence. No capture callback will be fired if this is set to NULL.
- * @param numRequests number of requests in requests argument. Must be at least 1.
- * @param requests an array of {@link ACaptureRequest} to be captured. Length must be at least
- *        numRequests.
- * @param captureSequenceId the capture sequence ID associated with this capture method invocation
- *        will be stored here if this argument is not NULL and the method call succeeds.
- *        When this argument is set to NULL, the capture sequence ID will not be returned.
- *
- * @return <ul><li>
- *             {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
- *             if it is not NULL.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session or requests is NULL, or
- *             if numRequests < 1</li>
- *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
- *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
- */
-camera_status_t ACameraCaptureSession_capture(
-        ACameraCaptureSession* session,
-        /*optional*/ACameraCaptureSession_captureCallbacks* callbacks,
-        int numRequests, ACaptureRequest** requests,
-        /*optional*/int* captureSequenceId);
-
-/**
- * Request endlessly repeating capture of a sequence of images by this capture session.
- *
- * <p>With this method, the camera device will continually capture images,
- * cycling through the settings in the provided list of
- * {@link ACaptureRequest}, at the maximum rate possible.</p>
- *
- * <p>If a request is submitted through {@link ACameraCaptureSession_capture},
- * the current repetition of the request list will be
- * completed before the higher-priority request is handled. This guarantees
- * that the application always receives a complete repeat burst captured in
- * minimal time, instead of bursts interleaved with higher-priority
- * captures, or incomplete captures.</p>
- *
- * <p>Repeating burst requests are a simple way for an application to
- * maintain a preview or other continuous stream of frames where each
- * request is different in a predicatable way, without having to continually
- * submit requests through {@link ACameraCaptureSession_capture}.</p>
- *
- * <p>To stop the repeating capture, call {@link ACameraCaptureSession_stopRepeating}. Any
- * ongoing burst will still be completed, however. Calling
- * {@link ACameraCaptureSession_abortCaptures} will also clear the request.</p>
- *
- * <p>Calling this method will replace a previously-set repeating requests
- * set up by this method, although any in-progress burst will be completed before the new repeat
- * burst will be used.</p>
- *
- * @param session the capture session of interest
- * @param callbacks the {@link ACameraCaptureSession_captureCallbacks} to be associated with this
- *        capture sequence. No capture callback will be fired if callbacks is set to NULL.
- * @param numRequests number of requests in requests array. Must be at least 1.
- * @param requests an array of {@link ACaptureRequest} to be captured. Length must be at least
- *        numRequests.
- * @param captureSequenceId the capture sequence ID associated with this capture method invocation
- *        will be stored here if this argument is not NULL and the method call succeeds.
- *        When this argument is set to NULL, the capture sequence ID will not be returned.
- *
- * @return <ul><li>
- *             {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
- *             if it is not NULL.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session or requests is NULL, or
- *             if numRequests < 1</li>
- *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
- *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for  some other reasons</li></ul>
- */
-camera_status_t ACameraCaptureSession_setRepeatingRequest(
-        ACameraCaptureSession* session,
-        /*optional*/ACameraCaptureSession_captureCallbacks* callbacks,
-        int numRequests, ACaptureRequest** requests,
-        /*optional*/int* captureSequenceId);
-
-/**
- * Cancel any ongoing repeating capture set by {@link ACameraCaptureSession_setRepeatingRequest}.
- * Has no effect on requests submitted through {@link ACameraCaptureSession_capture}.
- *
- * <p>Any currently in-flight captures will still complete, as will any burst that is
- * mid-capture. To ensure that the device has finished processing all of its capture requests
- * and is in ready state, wait for the {@link ACameraCaptureSession_stateCallbacks#onReady} callback
- * after calling this method.</p>
- *
- * @param session the capture session of interest
- *
- * @return <ul><li>
- *             {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
- *             if it is not NULL.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session is NULL.</li>
- *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
- *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
- */
-camera_status_t ACameraCaptureSession_stopRepeating(ACameraCaptureSession* session);
-
-/**
- * Discard all captures currently pending and in-progress as fast as possible.
- *
- * <p>The camera device will discard all of its current work as fast as possible. Some in-flight
- * captures may complete successfully and call
- * {@link ACameraCaptureSession_captureCallbacks#onCaptureCompleted},
- * while others will trigger their {@link ACameraCaptureSession_captureCallbacks#onCaptureFailed}
- * callbacks. If a repeating request list is set, it will be cleared.</p>
- *
- * <p>This method is the fastest way to switch the camera device to a new session with
- * {@link ACameraDevice_createCaptureSession}, at the cost of discarding in-progress
- * work. It must be called before the new session is created. Once all pending requests are
- * either completed or thrown away, the {@link ACameraCaptureSession_stateCallbacks#onReady}
- * callback will be called, if the session has not been closed. Otherwise, the
- * {@link ACameraCaptureSession_stateCallbacks#onClosed}
- * callback will be fired when a new session is created by the camera device and the previous
- * session is being removed from memory.</p>
- *
- * <p>Cancelling will introduce at least a brief pause in the stream of data from the camera
- * device, since once the camera device is emptied, the first new request has to make it through
- * the entire camera pipeline before new output buffers are produced.</p>
- *
- * <p>This means that using ACameraCaptureSession_abortCaptures to simply remove pending requests is
- * not recommended; it's best used for quickly switching output configurations, or for cancelling
- * long in-progress requests (such as a multi-second capture).</p>
- *
- * @param session the capture session of interest
- *
- * @return <ul><li>
- *             {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
- *             if it is not NULL.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session is NULL.</li>
- *         <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
- *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
- */
-camera_status_t ACameraCaptureSession_abortCaptures(ACameraCaptureSession* session);
-
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-#endif // _NDK_CAMERA_CAPTURE_SESSION_H
-
-/** @} */
diff --git a/include/camera/ndk/NdkCameraDevice.h b/include/camera/ndk/NdkCameraDevice.h
deleted file mode 100644
index 9011cb6..0000000
--- a/include/camera/ndk/NdkCameraDevice.h
+++ /dev/null
@@ -1,668 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @addtogroup Camera
- * @{
- */
-
-/**
- * @file NdkCameraDevice.h
- */
-
-/*
- * This file defines an NDK API.
- * Do not remove methods.
- * Do not change method signatures.
- * Do not change the value of constants.
- * Do not change the size of any of the classes defined in here.
- * Do not reference types that are not part of the NDK.
- * Do not #include files that aren't part of the NDK.
- */
-
-#include <android/native_window.h>
-#include "NdkCameraError.h"
-#include "NdkCaptureRequest.h"
-#include "NdkCameraCaptureSession.h"
-
-#ifndef _NDK_CAMERA_DEVICE_H
-#define _NDK_CAMERA_DEVICE_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * ACameraDevice is opaque type that provides access to a camera device.
- *
- * A pointer can be obtained using {@link ACameraManager_openCamera} method.
- */
-typedef struct ACameraDevice ACameraDevice;
-
-/// Enum for ACameraDevice_ErrorStateCallback error code
-enum {
-    /**
-     * The camera device is in use already.
-     */
-    ERROR_CAMERA_IN_USE = 1,
-
-    /**
-     * The system-wide limit for number of open cameras or camera resources has
-     * been reached, and more camera devices cannot be opened until previous
-     * instances are closed.
-     */
-    ERROR_MAX_CAMERAS_IN_USE = 2,
-
-    /**
-     * The camera is disabled due to a device policy, and cannot be opened.
-     */
-    ERROR_CAMERA_DISABLED = 3,
-
-    /**
-     * The camera device has encountered a fatal error.
-     * <p>The camera device needs to be re-opened to be used again.</p>
-     */
-    ERROR_CAMERA_DEVICE = 4,
-
-    /**
-     * The camera service has encountered a fatal error.
-     * <p>The Android device may need to be shut down and restarted to restore
-     * camera function, or there may be a persistent hardware problem.
-     * An attempt at recovery may be possible by closing the
-     * CameraDevice and the CameraManager, and trying to acquire all resources
-     * again from scratch.</p>
-     */
-    ERROR_CAMERA_SERVICE = 5
-};
-
-/**
- * Camera device state callbacks to be used in {@link ACameraDevice_stateCallbacks}.
- *
- * @param context The optional context in {@link ACameraDevice_stateCallbacks} will be
- *                passed to this callback.
- * @param device The {@link ACameraDevice} that is being disconnected.
- */
-typedef void (*ACameraDevice_StateCallback)(void* context, ACameraDevice* device);
-
-/**
- * Camera device error state callbacks to be used in {@link ACameraDevice_stateCallbacks}.
- *
- * @param context The optional context in {@link ACameraDevice_stateCallbacks} will be
- *                passed to this callback.
- * @param device The {@link ACameraDevice} that is being disconnected.
- * @param error The error code describes the cause of this error callback. See the folowing
- *              links for more detail.
- *
- * @see ERROR_CAMERA_IN_USE
- * @see ERROR_MAX_CAMERAS_IN_USE
- * @see ERROR_CAMERA_DISABLED
- * @see ERROR_CAMERA_DEVICE
- * @see ERROR_CAMERA_SERVICE
- */
-typedef void (*ACameraDevice_ErrorStateCallback)(void* context, ACameraDevice* device, int error);
-
-typedef struct ACameraDevice_StateCallbacks {
-    /// optional application context.
-    void*                             context;
-
-    /**
-     * The function is  called when a camera device is no longer available for use.
-     *
-     * <p>Any attempt to call API methods on this ACameraDevice will return
-     * {@link ACAMERA_ERROR_CAMERA_DISCONNECTED}. The disconnection could be due to a
-     * change in security policy or permissions; the physical disconnection
-     * of a removable camera device; or the camera being needed for a
-     * higher-priority camera API client.</p>
-     *
-     * <p>Application should clean up the camera with {@link ACameraDevice_close} after
-     * this happens, as it is not recoverable until the camera can be opened
-     * again.</p>
-     *
-     */
-    ACameraDevice_StateCallback       onDisconnected;
-
-    /**
-     * The function called when a camera device has encountered a serious error.
-     *
-     * <p>This indicates a failure of the camera device or camera service in some way.
-     * Any attempt to call API methods on this ACameraDevice in the future will return
-     * {@link ACAMERA_ERROR_CAMERA_DISCONNECTED}.</p>
-     *
-     * <p>There may still be capture completion or camera stream callbacks that will be called
-     * after this error is received.</p>
-     *
-     * <p>Application should clean up the camera with {@link ACameraDevice_close} after this
-     * happens. Further attempts at recovery are error-code specific.</p>
-     *
-     */
-    ACameraDevice_ErrorStateCallback  onError;
-} ACameraDevice_stateCallbacks;
-
-/**
- * Close the connection and free this ACameraDevice synchronously. Access to the ACameraDevice
- * after calling this method will cause a crash.
- *
- * <p>After this call, all calls to the active ACameraCaptureSession associated to this
- * ACameraDevice will return {@link ACAMERA_ERROR_SESSION_CLOSED} except for calls to
- * {@link ACameraCaptureSession_close}.</p>
- *
- * <p>This method will stop all repeating captures sent via
- * {@link ACameraCaptureSession_setRepeatingRequest} and block until all capture requests sent via
- * {@link ACameraCaptureSession_capture} is complete. Once the method returns, the camera device
- * will be removed from memory and access to the closed camera device pointer will cause a crash.</p>
- *
- * @param device the camera device to be closed
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if device is NULL.</li></ul>
- */
-camera_status_t ACameraDevice_close(ACameraDevice* device);
-
-/**
- * Return the camera id associated with this camera device.
- *
- * @param device the camera device to be closed
- *
- * @return camera ID string. The returned string is managed by framework and should not be
- * delete/free by the application. Also the returned string must not be used after the device
- * has been closed.
- */
-const char* ACameraDevice_getId(const ACameraDevice* device);
-
-typedef enum {
-    /**
-     * Create a request suitable for a camera preview window. Specifically, this
-     * means that high frame rate is given priority over the highest-quality
-     * post-processing. These requests would normally be used with the
-     * {@link ACameraCaptureSession_setRepeatingRequest} method.
-     * This template is guaranteed to be supported on all camera devices.
-     *
-     * @see ACameraDevice_createCaptureRequest
-     */
-    TEMPLATE_PREVIEW = 1,
-
-    /**
-     * Create a request suitable for still image capture. Specifically, this
-     * means prioritizing image quality over frame rate. These requests would
-     * commonly be used with the {@link ACameraCaptureSession_capture} method.
-     * This template is guaranteed to be supported on all camera devices.
-     *
-     * @see ACameraDevice_createCaptureRequest
-     */
-    TEMPLATE_STILL_CAPTURE = 2,
-
-    /**
-     * Create a request suitable for video recording. Specifically, this means
-     * that a stable frame rate is used, and post-processing is set for
-     * recording quality. These requests would commonly be used with the
-     * {@link ACameraCaptureSession_setRepeatingRequest} method.
-     * This template is guaranteed to be supported on all camera devices.
-     *
-     * @see ACameraDevice_createCaptureRequest
-     */
-    TEMPLATE_RECORD = 3,
-
-    /**
-     * Create a request suitable for still image capture while recording
-     * video. Specifically, this means maximizing image quality without
-     * disrupting the ongoing recording. These requests would commonly be used
-     * with the {@link ACameraCaptureSession_capture} method while a request based on
-     * {@link TEMPLATE_RECORD} is is in use with {@link ACameraCaptureSession_setRepeatingRequest}.
-     * This template is guaranteed to be supported on all camera devices.
-     *
-     * @see ACameraDevice_createCaptureRequest
-     */
-    TEMPLATE_VIDEO_SNAPSHOT = 4,
-
-    /**
-     * Create a request suitable for zero shutter lag still capture. This means
-     * means maximizing image quality without compromising preview frame rate.
-     * AE/AWB/AF should be on auto mode.
-     *
-     * @see ACameraDevice_createCaptureRequest
-     */
-    TEMPLATE_ZERO_SHUTTER_LAG = 5,
-
-    /**
-     * A basic template for direct application control of capture
-     * parameters. All automatic control is disabled (auto-exposure, auto-white
-     * balance, auto-focus), and post-processing parameters are set to preview
-     * quality. The manual capture parameters (exposure, sensitivity, and so on)
-     * are set to reasonable defaults, but should be overriden by the
-     * application depending on the intended use case.
-     * This template is guaranteed to be supported on camera devices that support the
-     * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR} capability.
-     *
-     * @see ACameraDevice_createCaptureRequest
-     */
-    TEMPLATE_MANUAL = 6,
-} ACameraDevice_request_template;
-
-/**
- * Create a ACaptureRequest for capturing images, initialized with template
- * for a target use case.
- *
- * <p>The settings are chosen to be the best options for this camera device,
- * so it is not recommended to reuse the same request for a different camera device.</p>
- *
- * @param device the camera device of interest
- * @param templateId the type of capture request to be created.
- *        See {@link ACameraDevice_request_template}.
- * @param request the output request will be stored here if the method call succeeds.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds. The created capture request will be
- *                                filled in request argument.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if device or request is NULL, templateId
- *                                is undefined or camera device does not support requested template.
- *                                </li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed.</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error.</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error.</li>
- *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
- *
- * @see TEMPLATE_PREVIEW
- * @see TEMPLATE_RECORD
- * @see TEMPLATE_STILL_CAPTURE
- * @see TEMPLATE_VIDEO_SNAPSHOT
- * @see TEMPLATE_MANUAL
- */
-camera_status_t ACameraDevice_createCaptureRequest(
-        const ACameraDevice* device, ACameraDevice_request_template templateId,
-        /*out*/ACaptureRequest** request);
-
-
-typedef struct ACaptureSessionOutputContainer ACaptureSessionOutputContainer;
-
-typedef struct ACaptureSessionOutput ACaptureSessionOutput;
-
-/**
- * Create a capture session output container.
- *
- * <p>The container is used in {@link ACameraDevice_createCaptureSession} method to create a capture
- * session. Use {@link ACaptureSessionOutputContainer_free} to free the container and its memory
- * after application no longer needs the ACaptureSessionOutputContainer.</p>
- *
- * @param container the output {@link ACaptureSessionOutputContainer} will be stored here if the
- *                  method call succeeds.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds. The created container will be
- *                                filled in container argument.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if container is NULL.</li></ul>
- */
-camera_status_t ACaptureSessionOutputContainer_create(
-        /*out*/ACaptureSessionOutputContainer** container);
-
-/**
- * Free a capture session output container.
- *
- * @param container the {@link ACaptureSessionOutputContainer} to be freed.
- *
- * @see ACaptureSessionOutputContainer_create
- */
-void            ACaptureSessionOutputContainer_free(ACaptureSessionOutputContainer* container);
-
-/**
- * Create a ACaptureSessionOutput object.
- *
- * <p>The ACaptureSessionOutput is used in {@link ACaptureSessionOutputContainer_add} method to add
- * an output {@link ANativeWindow} to ACaptureSessionOutputContainer. Use
- * {@link ACaptureSessionOutput_free} to free the object and its memory after application no longer
- * needs the {@link ACaptureSessionOutput}.</p>
- *
- * @param anw the {@link ANativeWindow} to be associated with the {@link ACaptureSessionOutput}
- * @param output the output {@link ACaptureSessionOutput} will be stored here if the
- *                  method call succeeds.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds. The created container will be
- *                                filled in the output argument.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if anw or output is NULL.</li></ul>
- *
- * @see ACaptureSessionOutputContainer_add
- */
-camera_status_t ACaptureSessionOutput_create(
-        ANativeWindow* anw, /*out*/ACaptureSessionOutput** output);
-
-/**
- * Free a ACaptureSessionOutput object.
- *
- * @param output the {@link ACaptureSessionOutput} to be freed.
- *
- * @see ACaptureSessionOutput_create
- */
-void            ACaptureSessionOutput_free(ACaptureSessionOutput* output);
-
-/**
- * Add an {@link ACaptureSessionOutput} object to {@link ACaptureSessionOutputContainer}.
- *
- * @param container the {@link ACaptureSessionOutputContainer} of interest.
- * @param output the output {@link ACaptureSessionOutput} to be added to container.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if container or output is NULL.</li></ul>
- */
-camera_status_t ACaptureSessionOutputContainer_add(
-        ACaptureSessionOutputContainer* container, const ACaptureSessionOutput* output);
-
-/**
- * Remove an {@link ACaptureSessionOutput} object from {@link ACaptureSessionOutputContainer}.
- *
- * <p>This method has no effect if the ACaptureSessionOutput does not exist in
- * ACaptureSessionOutputContainer.</p>
- *
- * @param container the {@link ACaptureSessionOutputContainer} of interest.
- * @param output the output {@link ACaptureSessionOutput} to be removed from container.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if container or output is NULL.</li></ul>
- */
-camera_status_t ACaptureSessionOutputContainer_remove(
-        ACaptureSessionOutputContainer* container, const ACaptureSessionOutput* output);
-
-/**
- * Create a new camera capture session by providing the target output set of {@link ANativeWindow}
- * to the camera device.
- *
- * <p>If there is a preexisting session, the previous session will be closed
- * automatically. However, app still needs to call {@link ACameraCaptureSession_close} on previous
- * session. Otherwise the resources held by previous session will NOT be freed.</p>
- *
- * <p>The active capture session determines the set of potential output {@link ANativeWindow}s for
- * the camera device for each capture request. A given request may use all
- * or only some of the outputs. Once the ACameraCaptureSession is created, requests can be
- * submitted with {@link ACameraCaptureSession_capture} or
- * {@link ACameraCaptureSession_setRepeatingRequest}.</p>
- *
- * <p>Often the {@link ANativeWindow} used with this method can be obtained from a <a href=
- * "http://developer.android.com/reference/android/view/Surface.html">Surface</a> java object by
- * {@link ANativeWindow_fromSurface} NDK method. Surfaces or ANativeWindow suitable for inclusion as a camera
- * output can be created for various use cases and targets:</p>
- *
- * <ul>
- *
- * <li>For drawing to a
- *   <a href="http://developer.android.com/reference/android/view/SurfaceView.html">SurfaceView</a>:
- *   Once the SurfaceView's Surface is created, set the size
- *   of the Surface with
- *   <a href="http://developer.android.com/reference/android/view/SurfaceHolder.html#setFixedSize(int, int)">
- *    android.view.SurfaceHolder\#setFixedSize</a> to be one of the PRIVATE output sizes
- *   returned by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}
- *   and then obtain the Surface by calling <a href=
- *   "http://developer.android.com/reference/android/view/SurfaceHolder.html#getSurface()">
- *   android.view.SurfaceHolder\#getSurface</a>. If the size is not set by the application, it will
- *   be rounded to the nearest supported size less than 1080p, by the camera device.</li>
- *
- * <li>For accessing through an OpenGL texture via a <a href=
- *   "http://developer.android.com/reference/android/graphics/SurfaceTexture.html">SurfaceTexture</a>:
- *   Set the size of the SurfaceTexture with <a href=
- *   "http://developer.android.com/reference/android/graphics/SurfaceTexture.html#setDefaultBufferSize(int, int)">
- *   setDefaultBufferSize</a> to be one of the PRIVATE output sizes
- *   returned by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}
- *   before creating a Surface from the SurfaceTexture with <a href=
- *   "http://developer.android.com/reference/android/view/Surface.html#Surface(android.graphics.SurfaceTexture)">
- *   Surface\#Surface(SurfaceTextrue)</a>. If the size is not set by the application, it will be set to be the
- *   smallest supported size less than 1080p, by the camera device.</li>
- *
- * <li>For recording with <a href=
- *     "http://developer.android.com/reference/android/media/MediaCodec.html">
- *     MediaCodec</a>: Call
- *   <a href=
- *     "http://developer.android.com/reference/android/media/MediaCodec.html#createInputSurface()">
- *     android.media.MediaCodec\#createInputSurface</a> after configuring
- *   the media codec to use one of the PRIVATE output sizes
- *   returned by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}.
- *   </li>
- *
- * <li>For recording with <a href=
- *    "http://developer.android.com/reference/android/media/MediaRecorder.html">
- *    MediaRecorder</a>: Call
- *   <a href="http://developer.android.com/reference/android/media/MediaRecorder.html#getSurface()">
- *    android.media.MediaRecorder\#getSurface</a> after configuring the media recorder to use
- *   one of the PRIVATE output sizes returned by
- *   {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}, or configuring it to use one of the supported
- *   <a href="http://developer.android.com/reference/android/media/CamcorderProfile.html">
- *    CamcorderProfiles</a>.</li>
- *
- * <li>For efficient YUV processing with <a href=
- *   "http://developer.android.com/reference/android/renderscript/package-summary.html">
- *   RenderScript</a>:
- *   Create a RenderScript
- *   <a href="http://developer.android.com/reference/android/renderscript/Allocation.html">
- *   Allocation</a> with a supported YUV
- *   type, the IO_INPUT flag, and one of the YUV output sizes returned by
- *   {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS},
- *   Then obtain the Surface with
- *   <a href="http://developer.android.com/reference/android/renderscript/Allocation.html#getSurface()">
- *   Allocation#getSurface}</a>.</li>
- *
- * <li>For access to RAW, uncompressed YUV, or compressed JPEG data in the application: Create an
- *   {@link AImageReader} object using the {@link AImageReader_new} method with one of the supported
- *   output formats given by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}. Then obtain a
- *   ANativeWindow from it with {@link AImageReader_getWindow}.
- *   If the AImageReader size is not set to a supported size, it will be rounded to a supported
- *   size less than 1080p by the camera device.
- *   </li>
- *
- * </ul>
- *
- * <p>The camera device will query each ANativeWindow's size and formats upon this
- * call, so they must be set to a valid setting at this time.</p>
- *
- * <p>It can take several hundred milliseconds for the session's configuration to complete,
- * since camera hardware may need to be powered on or reconfigured.</p>
- *
- * <p>If a prior ACameraCaptureSession already exists when this method is called, the previous
- * session will no longer be able to accept new capture requests and will be closed. Any
- * in-progress capture requests made on the prior session will be completed before it's closed.
- * To minimize the transition time,
- * the ACameraCaptureSession_abortCaptures method can be used to discard the remaining
- * requests for the prior capture session before a new one is created. Note that once the new
- * session is created, the old one can no longer have its captures aborted.</p>
- *
- * <p>Using larger resolution outputs, or more outputs, can result in slower
- * output rate from the device.</p>
- *
- * <p>Configuring a session with an empty list will close the current session, if
- * any. This can be used to release the current session's target surfaces for another use.</p>
- *
- * <p>While any of the sizes from {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS} can be used when
- * a single output stream is configured, a given camera device may not be able to support all
- * combination of sizes, formats, and targets when multiple outputs are configured at once.  The
- * tables below list the maximum guaranteed resolutions for combinations of streams and targets,
- * given the capabilities of the camera device.</p>
- *
- * <p>If an application tries to create a session using a set of targets that exceed the limits
- * described in the below tables, one of three possibilities may occur. First, the session may
- * be successfully created and work normally. Second, the session may be successfully created,
- * but the camera device won't meet the frame rate guarantees as described in
- * {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}. Or third, if the output set
- * cannot be used at all, session creation will fail entirely, with
- * {@link ACAMERA_ERROR_STREAM_CONFIGURE_FAIL} being returned.</p>
- *
- * <p>For the type column `PRIV` refers to output format {@link AIMAGE_FORMAT_PRIVATE},
- * `YUV` refers to output format {@link AIMAGE_FORMAT_YUV_420_888},
- * `JPEG` refers to output format {@link AIMAGE_FORMAT_JPEG},
- * and `RAW` refers to output format {@link AIMAGE_FORMAT_RAW16}
- *
- *
- * <p>For the maximum size column, `PREVIEW` refers to the best size match to the
- * device's screen resolution, or to 1080p `(1920x1080)`, whichever is
- * smaller. `RECORD` refers to the camera device's maximum supported recording resolution,
- * as determined by <a href="http://developer.android.com/reference/android/media/CamcorderProfile.html">
- * android.media.CamcorderProfiles</a>. And `MAXIMUM` refers to the
- * camera device's maximum output resolution for that format or target from
- * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}.</p>
- *
- * <p>To use these tables, determine the number and the formats/targets of outputs needed, and
- * find the row(s) of the table with those targets. The sizes indicate the maximum set of sizes
- * that can be used; it is guaranteed that for those targets, the listed sizes and anything
- * smaller from the list given by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS} can be
- * successfully used to create a session.  For example, if a row indicates that a 8 megapixel
- * (MP) YUV_420_888 output can be used together with a 2 MP `PRIV` output, then a session
- * can be created with targets `[8 MP YUV, 2 MP PRIV]` or targets `[2 MP YUV, 2 MP PRIV]`;
- * but a session with targets `[8 MP YUV, 4 MP PRIV]`, targets `[4 MP YUV, 4 MP PRIV]`,
- * or targets `[8 MP PRIV, 2 MP YUV]` would not be guaranteed to work, unless
- * some other row of the table lists such a combination.</p>
- *
- * <p>Legacy devices ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
- * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY LEGACY}) support at
- * least the following stream combinations:
- *
- * <table>
- * <tr><th colspan="7">LEGACY-level guaranteed configurations</th></tr>
- * <tr> <th colspan="2" id="rb">Target 1</th> <th colspan="2" id="rb">Target 2</th>  <th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
- * <tr> <th>Type</th><th id="rb">Max size</th> <th>Type</th><th id="rb">Max size</th> <th>Type</th><th id="rb">Max size</th></tr>
- * <tr> <td>`PRIV`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>Simple preview, GPU video processing, or no-preview video recording.</td> </tr>
- * <tr> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>No-viewfinder still image capture.</td> </tr>
- * <tr> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>In-application video/image processing.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Standard still imaging.</td> </tr>
- * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>In-app processing plus still capture.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td colspan="2" id="rb"></td> <td>Standard recording.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td colspan="2" id="rb"></td> <td>Preview plus in-app processing.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>Still capture plus in-app processing.</td> </tr>
- * </table><br>
- * </p>
- *
- * <p>Limited-level ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
- * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED}) devices
- * support at least the following stream combinations in addition to those for
- * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY LEGACY} devices:
- *
- * <table>
- * <tr><th colspan="7">LIMITED-level additional guaranteed configurations</th></tr>
- * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
- * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th></tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`RECORD `</td> <td colspan="2" id="rb"></td> <td>High-resolution video recording with preview.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`RECORD `</td> <td colspan="2" id="rb"></td> <td>High-resolution in-app video processing with preview.</td> </tr>
- * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`RECORD `</td> <td colspan="2" id="rb"></td> <td>Two-input in-app video processing.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`RECORD `</td> <td>`JPEG`</td><td id="rb">`RECORD `</td> <td>High-resolution recording with video snapshot.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`RECORD `</td> <td>`JPEG`</td><td id="rb">`RECORD `</td> <td>High-resolution in-app processing with video snapshot.</td> </tr>
- * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>Two-input in-app processing with still capture.</td> </tr>
- * </table><br>
- * </p>
- *
- * <p>FULL-level ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
- * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL FULL}) devices
- * support at least the following stream combinations in addition to those for
- * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED} devices:
- *
- * <table>
- * <tr><th colspan="7">FULL-level additional guaranteed configurations</th></tr>
- * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
- * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Maximum-resolution GPU processing with preview.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Maximum-resolution in-app processing with preview.</td> </tr>
- * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Maximum-resolution two-input in-app processsing.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>Video recording with maximum-size video snapshot</td> </tr>
- * <tr> <td>`YUV `</td><td id="rb">`640x480`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Standard video recording plus maximum-resolution in-app processing.</td> </tr>
- * <tr> <td>`YUV `</td><td id="rb">`640x480`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Preview plus two-input maximum-resolution in-app processing.</td> </tr>
- * </table><br>
- * </p>
- *
- * <p>RAW-capability ({@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES} includes
- * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_RAW RAW}) devices additionally support
- * at least the following stream combinations on both
- * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL FULL} and
- * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED} devices:
- *
- * <table>
- * <tr><th colspan="7">RAW-capability additional guaranteed configurations</th></tr>
- * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
- * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
- * <tr> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>No-preview DNG capture.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Standard DNG capture.</td> </tr>
- * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>In-app processing plus DNG capture.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Video recording with DNG capture.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Preview with in-app processing and DNG capture.</td> </tr>
- * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Two-input in-app processing plus DNG capture.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Still capture with simultaneous JPEG and DNG.</td> </tr>
- * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>In-app processing with simultaneous JPEG and DNG.</td> </tr>
- * </table><br>
- * </p>
- *
- * <p>BURST-capability ({@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES} includes
- * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE BURST_CAPTURE}) devices
- * support at least the below stream combinations in addition to those for
- * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED} devices. Note that all
- * FULL-level devices support the BURST capability, and the below list is a strict subset of the
- * list for FULL-level devices, so this table is only relevant for LIMITED-level devices that
- * support the BURST_CAPTURE capability.
- *
- * <table>
- * <tr><th colspan="5">BURST-capability additional guaranteed configurations</th></tr>
- * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th rowspan="2">Sample use case(s)</th> </tr>
- * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`MAXIMUM`</td> <td>Maximum-resolution GPU processing with preview.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Maximum-resolution in-app processing with preview.</td> </tr>
- * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Maximum-resolution two-input in-app processsing.</td> </tr>
- * </table><br>
- * </p>
- *
- * <p>LEVEL-3 ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
- * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_3 LEVEL_3})
- * support at least the following stream combinations in addition to the combinations for
- * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL FULL} and for
- * RAW capability ({@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES} includes
- * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_RAW RAW}):
- *
- * <table>
- * <tr><th colspan="11">LEVEL-3 additional guaranteed configurations</th></tr>
- * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th><th colspan="2" id="rb">Target 4</th><th rowspan="2">Sample use case(s)</th> </tr>
- * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`640x480`</td> <td>`YUV`</td><td id="rb">`MAXIMUM`</td> <td>`RAW`</td><td id="rb">`MAXIMUM`</td> <td>In-app viewfinder analysis with dynamic selection of output format.</td> </tr>
- * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`640x480`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>`RAW`</td><td id="rb">`MAXIMUM`</td> <td>In-app viewfinder analysis with dynamic selection of output format.</td> </tr>
- * </table><br>
- * </p>
- *
- * <p>Since the capabilities of camera devices vary greatly, a given camera device may support
- * target combinations with sizes outside of these guarantees, but this can only be tested for
- * by attempting to create a session with such targets.</p>
- *
- * @param device the camera device of interest.
- * @param outputs the {@link ACaptureSessionOutputContainer} describes all output streams.
- * @param callbacks the {@link ACameraCaptureSession_stateCallbacks capture session state callbacks}.
- * @param session the created {@link ACameraCaptureSession} will be filled here if the method call
- *        succeeds.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds. The created capture session will be
- *                                filled in session argument.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if any of device, outputs, callbacks or
- *                                session is NULL.</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed.</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error.</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error.</li>
- *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
- */
-camera_status_t ACameraDevice_createCaptureSession(
-        ACameraDevice* device,
-        const ACaptureSessionOutputContainer*       outputs,
-        const ACameraCaptureSession_stateCallbacks* callbacks,
-        /*out*/ACameraCaptureSession** session);
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-#endif // _NDK_CAMERA_DEVICE_H
-
-/** @} */
-
diff --git a/include/camera/ndk/NdkCameraError.h b/include/camera/ndk/NdkCameraError.h
deleted file mode 100644
index 36251fc..0000000
--- a/include/camera/ndk/NdkCameraError.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @addtogroup Camera
- * @{
- */
-
-/**
- * @file NdkCameraError.h
- */
-
-/*
- * This file defines an NDK API.
- * Do not remove methods.
- * Do not change method signatures.
- * Do not change the value of constants.
- * Do not change the size of any of the classes defined in here.
- * Do not reference types that are not part of the NDK.
- * Do not #include files that aren't part of the NDK.
- */
-
-#ifndef _NDK_CAMERA_ERROR_H
-#define _NDK_CAMERA_ERROR_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef enum {
-    ACAMERA_OK = 0,
-
-    ACAMERA_ERROR_BASE                  = -10000,
-
-    /**
-     * Camera operation has failed due to an unspecified cause.
-     */
-    ACAMERA_ERROR_UNKNOWN               = ACAMERA_ERROR_BASE,
-
-    /**
-     * Camera operation has failed due to an invalid parameter being passed to the method.
-     */
-    ACAMERA_ERROR_INVALID_PARAMETER     = ACAMERA_ERROR_BASE - 1,
-
-    /**
-     * Camera operation has failed because the camera device has been closed, possibly because a
-     * higher-priority client has taken ownership of the camera device.
-     */
-    ACAMERA_ERROR_CAMERA_DISCONNECTED   = ACAMERA_ERROR_BASE - 2,
-
-    /**
-     * Camera operation has failed due to insufficient memory.
-     */
-    ACAMERA_ERROR_NOT_ENOUGH_MEMORY     = ACAMERA_ERROR_BASE - 3,
-
-    /**
-     * Camera operation has failed due to the requested metadata tag cannot be found in input
-     * {@link ACameraMetadata} or {@link ACaptureRequest}.
-     */
-    ACAMERA_ERROR_METADATA_NOT_FOUND    = ACAMERA_ERROR_BASE - 4,
-
-    /**
-     * Camera operation has failed and the camera device has encountered a fatal error and needs to
-     * be re-opened before it can be used again.
-     */
-    ACAMERA_ERROR_CAMERA_DEVICE         = ACAMERA_ERROR_BASE - 5,
-
-    /**
-     * Camera operation has failed and the camera service has encountered a fatal error.
-     *
-     * <p>The Android device may need to be shut down and restarted to restore
-     * camera function, or there may be a persistent hardware problem.</p>
-     *
-     * <p>An attempt at recovery may be possible by closing the
-     * ACameraDevice and the ACameraManager, and trying to acquire all resources
-     * again from scratch.</p>
-     */
-    ACAMERA_ERROR_CAMERA_SERVICE        = ACAMERA_ERROR_BASE - 6,
-
-    /**
-     * The {@link ACameraCaptureSession} has been closed and cannnot perform any operation other
-     * than {@link ACameraCaptureSession_close}.
-     */
-    ACAMERA_ERROR_SESSION_CLOSED        = ACAMERA_ERROR_BASE - 7,
-
-    /**
-     * Camera operation has failed due to an invalid internal operation. Usually this is due to a
-     * low-level problem that may resolve itself on retry
-     */
-    ACAMERA_ERROR_INVALID_OPERATION     = ACAMERA_ERROR_BASE - 8,
-
-    /**
-     * Camera device does not support the stream configuration provided by application in
-     * {@link ACameraDevice_createCaptureSession}.
-     */
-    ACAMERA_ERROR_STREAM_CONFIGURE_FAIL = ACAMERA_ERROR_BASE - 9,
-
-    /**
-     * Camera device is being used by another higher priority camera API client.
-     */
-    ACAMERA_ERROR_CAMERA_IN_USE         = ACAMERA_ERROR_BASE - 10,
-
-    /**
-     * The system-wide limit for number of open cameras or camera resources has been reached, and
-     * more camera devices cannot be opened until previous instances are closed.
-     */
-    ACAMERA_ERROR_MAX_CAMERA_IN_USE     = ACAMERA_ERROR_BASE - 11,
-
-    /**
-     * The camera is disabled due to a device policy, and cannot be opened.
-     */
-    ACAMERA_ERROR_CAMERA_DISABLED       = ACAMERA_ERROR_BASE - 12,
-
-    /**
-     * The application does not have permission to open camera.
-     */
-    ACAMERA_ERROR_PERMISSION_DENIED     = ACAMERA_ERROR_BASE - 13,
-} camera_status_t;
-
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-#endif // _NDK_CAMERA_ERROR_H
-
-/** @} */
diff --git a/include/camera/ndk/NdkCameraManager.h b/include/camera/ndk/NdkCameraManager.h
deleted file mode 100644
index 9188e94..0000000
--- a/include/camera/ndk/NdkCameraManager.h
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @addtogroup Camera
- * @{
- */
-
-/**
- * @file NdkCameraManager.h
- */
-
-/*
- * This file defines an NDK API.
- * Do not remove methods.
- * Do not change method signatures.
- * Do not change the value of constants.
- * Do not change the size of any of the classes defined in here.
- * Do not reference types that are not part of the NDK.
- * Do not #include files that aren't part of the NDK.
- */
-
-#ifndef _NDK_CAMERA_MANAGER_H
-#define _NDK_CAMERA_MANAGER_H
-
-#include "NdkCameraError.h"
-#include "NdkCameraMetadata.h"
-#include "NdkCameraDevice.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * ACameraManager is opaque type that provides access to camera service.
- *
- * A pointer can be obtained using {@link ACameraManager_create} method.
- */
-typedef struct ACameraManager ACameraManager;
-
-/**
- * Create ACameraManager instance.
- *
- * <p>The ACameraManager is responsible for
- * detecting, characterizing, and connecting to {@link ACameraDevice}s.</p>
- *
- * <p>The caller must call {@link ACameraManager_delete} to free the resources once it is done
- * using the ACameraManager instance.</p>
- *
- * @return a {@link ACameraManager} instance.
- *
- */
-ACameraManager* ACameraManager_create();
-
-/**
- * <p>Delete the {@link ACameraManager} instance and free its resources. </p>
- *
- * @param manager the {@link ACameraManager} instance to be deleted.
- */
-void ACameraManager_delete(ACameraManager* manager);
-
-/// Struct to hold list of camera devices
-typedef struct ACameraIdList {
-    int numCameras;          ///< Number of connected camera devices
-    const char** cameraIds;  ///< list of identifier of connected camera devices
-} ACameraIdList;
-
-/**
- * Create a list of currently connected camera devices, including
- * cameras that may be in use by other camera API clients.
- *
- * <p>Non-removable cameras use integers starting at 0 for their
- * identifiers, while removable cameras have a unique identifier for each
- * individual device, even if they are the same model.</p>
- *
- * <p>ACameraManager_getCameraIdList will allocate and return an {@link ACameraIdList}.
- * The caller must call {@link ACameraManager_deleteCameraIdList} to free the memory</p>
- *
- * @param manager the {@link ACameraManager} of interest
- * @param cameraIdList the output {@link ACameraIdList} will be filled in here if the method call
- *        succeeds.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager or cameraIdList is NULL.</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if connection to camera service fails.</li>
- *         <li>{@link ACAMERA_ERROR_NOT_ENOUGH_MEMORY} if allocating memory fails.</li></ul>
- */
-camera_status_t ACameraManager_getCameraIdList(ACameraManager* manager,
-                                              /*out*/ACameraIdList** cameraIdList);
-
-/**
- * Delete a list of camera devices allocated via {@link ACameraManager_getCameraIdList}.
- *
- * @param cameraIdList the {@link ACameraIdList} to be deleted.
- */
-void ACameraManager_deleteCameraIdList(ACameraIdList* cameraIdList);
-
-/**
- * Definition of camera availability callbacks.
- *
- * @param context The optional application context provided by user in
- *                {@link ACameraManager_AvailabilityCallbacks}.
- * @param cameraId The ID of the camera device whose availability is changing. The memory of this
- *                 argument is owned by camera framework and will become invalid immediately after
- *                 this callback returns.
- */
-typedef void (*ACameraManager_AvailabilityCallback)(void* context, const char* cameraId);
-
-/**
- * A listener for camera devices becoming available or unavailable to open.
- *
- * <p>Cameras become available when they are no longer in use, or when a new
- * removable camera is connected. They become unavailable when some
- * application or service starts using a camera, or when a removable camera
- * is disconnected.</p>
- *
- * @see ACameraManager_registerAvailabilityCallback
- */
-typedef struct ACameraManager_AvailabilityListener {
-    /// Optional application context.
-    void*                               context;
-    /// Called when a camera becomes available
-    ACameraManager_AvailabilityCallback onCameraAvailable;
-    /// Called when a camera becomes unavailable
-    ACameraManager_AvailabilityCallback onCameraUnavailable;
-} ACameraManager_AvailabilityCallbacks;
-
-/**
- * Register camera availability callbacks.
- *
- * <p>onCameraUnavailable will be called whenever a camera device is opened by any camera API client.
- * Other camera API clients may still be able to open such a camera device, evicting the existing
- * client if they have higher priority than the existing client of a camera device.
- * See {@link ACameraManager_openCamera} for more details.</p>
- *
- * <p>The callbacks will be called on a dedicated thread shared among all ACameraManager
- * instances.</p>
- *
- * <p>Since this callback will be registered with the camera service, remember to unregister it
- * once it is no longer needed; otherwise the callback will continue to receive events
- * indefinitely and it may prevent other resources from being released. Specifically, the
- * callbacks will be invoked independently of the general activity lifecycle and independently
- * of the state of individual ACameraManager instances.</p>
- *
- * @param manager the {@link ACameraManager} of interest.
- * @param callback the {@link ACameraManager_AvailabilityCallbacks} to be registered.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager or callback is NULL, or
- *                  {ACameraManager_AvailabilityCallbacks#onCameraAvailable} or
- *                  {ACameraManager_AvailabilityCallbacks#onCameraUnavailable} is NULL.</li></ul>
- */
-camera_status_t ACameraManager_registerAvailabilityCallback(
-        ACameraManager* manager, const ACameraManager_AvailabilityCallbacks* callback);
-
-/**
- * Unregister camera availability callbacks.
- *
- * <p>Removing a callback that isn't registered has no effect.</p>
- *
- * @param manager the {@link ACameraManager} of interest.
- * @param callback the {@link ACameraManager_AvailabilityCallbacks} to be unregistered.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if callback,
- *                  {ACameraManager_AvailabilityCallbacks#onCameraAvailable} or
- *                  {ACameraManager_AvailabilityCallbacks#onCameraUnavailable} is NULL.</li></ul>
- */
-camera_status_t ACameraManager_unregisterAvailabilityCallback(
-        ACameraManager* manager, const ACameraManager_AvailabilityCallbacks* callback);
-
-/**
- * Query the capabilities of a camera device. These capabilities are
- * immutable for a given camera.
- *
- * <p>See {@link ACameraMetadata} document and {@link NdkCameraMetadataTags.h} for more details.</p>
- *
- * <p>The caller must call {@link ACameraMetadata_free} to free the memory of the output
- * characteristics.</p>
- *
- * @param manager the {@link ACameraManager} of interest.
- * @param cameraId the ID string of the camera device of interest.
- * @param characteristics the output {@link ACameraMetadata} will be filled here if the method call
- *        succeeeds.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager, cameraId, or characteristics
- *                  is NULL, or cameraId does not match any camera devices connected.</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if connection to camera service fails.</li>
- *         <li>{@link ACAMERA_ERROR_NOT_ENOUGH_MEMORY} if allocating memory fails.</li>
- *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
- */
-camera_status_t ACameraManager_getCameraCharacteristics(
-        ACameraManager* manager, const char* cameraId,
-        /*out*/ACameraMetadata** characteristics);
-
-/**
- * Open a connection to a camera with the given ID. The opened camera device will be
- * returned in the `device` parameter.
- *
- * <p>Use {@link ACameraManager_getCameraIdList} to get the list of available camera
- * devices. Note that even if an id is listed, open may fail if the device
- * is disconnected between the calls to {@link ACameraManager_getCameraIdList} and
- * {@link ACameraManager_openCamera}, or if a higher-priority camera API client begins using the
- * camera device.</p>
- *
- * <p>Devices for which the
- * {@link ACameraManager_AvailabilityCallbacks#onCameraUnavailable} callback has been called due to
- * the device being in use by a lower-priority, background camera API client can still potentially
- * be opened by calling this method when the calling camera API client has a higher priority
- * than the current camera API client using this device.  In general, if the top, foreground
- * activity is running within your application process, your process will be given the highest
- * priority when accessing the camera, and this method will succeed even if the camera device is
- * in use by another camera API client. Any lower-priority application that loses control of the
- * camera in this way will receive an
- * {@link ACameraDevice_stateCallbacks#onDisconnected} callback.</p>
- *
- * <p>Once the camera is successfully opened,the ACameraDevice can then be set up
- * for operation by calling {@link ACameraDevice_createCaptureSession} and
- * {@link ACameraDevice_createCaptureRequest}.</p>
- *
- * <p>If the camera becomes disconnected after this function call returns,
- * {@link ACameraDevice_stateCallbacks#onDisconnected} with a
- * ACameraDevice in the disconnected state will be called.</p>
- *
- * <p>If the camera runs into error after this function call returns,
- * {@link ACameraDevice_stateCallbacks#onError} with a
- * ACameraDevice in the error state will be called.</p>
- *
- * @param manager the {@link ACameraManager} of interest.
- * @param cameraId the ID string of the camera device to be opened.
- * @param callback the {@link ACameraDevice_StateCallbacks} associated with the opened camera device.
- * @param device the opened {@link ACameraDevice} will be filled here if the method call succeeds.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager, cameraId, callback, or device
- *                  is NULL, or cameraId does not match any camera devices connected.</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if connection to camera service fails.</li>
- *         <li>{@link ACAMERA_ERROR_NOT_ENOUGH_MEMORY} if allocating memory fails.</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_IN_USE} if camera device is being used by a higher
- *                   priority camera API client.</li>
- *         <li>{@link ACAMERA_ERROR_MAX_CAMERA_IN_USE} if the system-wide limit for number of open
- *                   cameras or camera resources has been reached, and more camera devices cannot be
- *                   opened until previous instances are closed.</li>
- *         <li>{@link ACAMERA_ERROR_CAMERA_DISABLED} if the camera is disabled due to a device
- *                   policy, and cannot be opened.</li>
- *         <li>{@link ACAMERA_ERROR_PERMISSION_DENIED} if the application does not have permission
- *                   to open camera.</li>
- *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
- */
-camera_status_t ACameraManager_openCamera(
-        ACameraManager* manager, const char* cameraId,
-        ACameraDevice_StateCallbacks* callback,
-        /*out*/ACameraDevice** device);
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-#endif //_NDK_CAMERA_MANAGER_H
-
-/** @} */
diff --git a/include/camera/ndk/NdkCameraMetadata.h b/include/camera/ndk/NdkCameraMetadata.h
deleted file mode 100644
index d929854..0000000
--- a/include/camera/ndk/NdkCameraMetadata.h
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @addtogroup Camera
- * @{
- */
-
-/**
- * @file NdkCameraMetadata.h
- */
-
-/*
- * This file defines an NDK API.
- * Do not remove methods.
- * Do not change method signatures.
- * Do not change the value of constants.
- * Do not change the size of any of the classes defined in here.
- * Do not reference types that are not part of the NDK.
- * Do not #include files that aren't part of the NDK.
- */
-
-#ifndef _NDK_CAMERA_METADATA_H
-#define _NDK_CAMERA_METADATA_H
-
-#include "NdkCameraError.h"
-#include "NdkCameraMetadataTags.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * ACameraMetadata is opaque type that provides access to read-only camera metadata like camera
- * characteristics (via {@link ACameraManager_getCameraCharacteristics}) or capture results (via
- * {@link ACameraCaptureSession_captureCallback_result}).
- */
-typedef struct ACameraMetadata ACameraMetadata;
-
-/**
- * Possible data types of a metadata entry.
- *
- * Keep in sync with system/media/include/system/camera_metadata.h
- */
-enum {
-    /// Unsigned 8-bit integer (uint8_t)
-    ACAMERA_TYPE_BYTE = 0,
-    /// Signed 32-bit integer (int32_t)
-    ACAMERA_TYPE_INT32 = 1,
-    /// 32-bit float (float)
-    ACAMERA_TYPE_FLOAT = 2,
-    /// Signed 64-bit integer (int64_t)
-    ACAMERA_TYPE_INT64 = 3,
-    /// 64-bit float (double)
-    ACAMERA_TYPE_DOUBLE = 4,
-    /// A 64-bit fraction (ACameraMetadata_rational)
-    ACAMERA_TYPE_RATIONAL = 5,
-    /// Number of type fields
-    ACAMERA_NUM_TYPES
-};
-
-/**
- * Definition of rational data type in {@link ACameraMetadata}.
- */
-typedef struct ACameraMetadata_rational {
-    int32_t numerator;
-    int32_t denominator;
-} ACameraMetadata_rational;
-
-/**
- * A single camera metadata entry.
- *
- * <p>Each entry is an array of values, though many metadata fields may only have 1 entry in the
- * array.</p>
- */
-typedef struct ACameraMetadata_entry {
-    /**
-     * The tag identifying the entry.
-     *
-     * <p> It is one of the values defined in {@link NdkCameraMetadataTags.h}, and defines how the
-     * entry should be interpreted and which parts of the API provide it.
-     * See {@link NdkCameraMetadataTags.h} for more details. </p>
-     */
-    uint32_t tag;
-
-    /**
-     * The data type of this metadata entry.
-     *
-     * <p>Must be one of ACAMERA_TYPE_* enum values defined above. A particular tag always has the
-     * same type.</p>
-     */
-    uint8_t  type;
-
-    /**
-     * Count of elements (NOT count of bytes) in this metadata entry.
-     */
-    uint32_t count;
-
-    /**
-     * Pointer to the data held in this metadata entry.
-     *
-     * <p>The type field above defines which union member pointer is valid. The count field above
-     * defines the length of the data in number of elements.</p>
-     */
-    union {
-        uint8_t *u8;
-        int32_t *i32;
-        float   *f;
-        int64_t *i64;
-        double  *d;
-        ACameraMetadata_rational* r;
-    } data;
-} ACameraMetadata_entry;
-
-/**
- * A single read-only camera metadata entry.
- *
- * <p>Each entry is an array of values, though many metadata fields may only have 1 entry in the
- * array.</p>
- */
-typedef struct ACameraMetadata_const_entry {
-    /**
-     * The tag identifying the entry.
-     *
-     * <p> It is one of the values defined in {@link NdkCameraMetadataTags.h}, and defines how the
-     * entry should be interpreted and which parts of the API provide it.
-     * See {@link NdkCameraMetadataTags.h} for more details. </p>
-     */
-    uint32_t tag;
-
-    /**
-     * The data type of this metadata entry.
-     *
-     * <p>Must be one of ACAMERA_TYPE_* enum values defined above. A particular tag always has the
-     * same type.</p>
-     */
-    uint8_t  type;
-
-    /**
-     * Count of elements (NOT count of bytes) in this metadata entry.
-     */
-    uint32_t count;
-
-    /**
-     * Pointer to the data held in this metadata entry.
-     *
-     * <p>The type field above defines which union member pointer is valid. The count field above
-     * defines the length of the data in number of elements.</p>
-     */
-    union {
-        const uint8_t *u8;
-        const int32_t *i32;
-        const float   *f;
-        const int64_t *i64;
-        const double  *d;
-        const ACameraMetadata_rational* r;
-    } data;
-} ACameraMetadata_const_entry;
-
-/**
- * Get a metadata entry from an input {@link ACameraMetadata}.
- *
- * <p>The memory of the data field in the returned entry is managed by camera framework. Do not
- * attempt to free it.</p>
- *
- * @param metadata the {@link ACameraMetadata} of interest.
- * @param tag the tag value of the camera metadata entry to be get.
- * @param entry the output {@link ACameraMetadata_const_entry} will be filled here if the method
- *        call succeeeds.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if metadata or entry is NULL.</li>
- *         <li>{@link ACAMERA_ERROR_METADATA_NOT_FOUND} if input metadata does not contain an entry
- *             of input tag value.</li></ul>
- */
-camera_status_t ACameraMetadata_getConstEntry(
-        const ACameraMetadata* metadata, uint32_t tag, /*out*/ACameraMetadata_const_entry* entry);
-
-/**
- * List all the entry tags in input {@link ACameraMetadata}.
- *
- * @param metadata the {@link ACameraMetadata} of interest.
- * @param numEntries number of metadata entries in input {@link ACameraMetadata}
- * @param tags the tag values of the metadata entries. Length of tags is returned in numEntries
- *             argument. The memory is managed by ACameraMetadata itself and must NOT be free/delete
- *             by application. Do NOT access tags after calling ACameraMetadata_free.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if metadata, numEntries or tags is NULL.</li>
- *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
- */
-camera_status_t ACameraMetadata_getAllTags(
-        const ACameraMetadata* metadata, /*out*/int32_t* numEntries, /*out*/const uint32_t** tags);
-
-/**
- * Create a copy of input {@link ACameraMetadata}.
- *
- * <p>The returned ACameraMetadata must be freed by the application by {@link ACameraMetadata_free}
- * after application is done using it.</p>
- *
- * @param src the input {@link ACameraMetadata} to be copied.
- *
- * @return a valid ACameraMetadata pointer or NULL if the input metadata cannot be copied.
- */
-ACameraMetadata* ACameraMetadata_copy(const ACameraMetadata* src);
-
-/**
- * Free a {@link ACameraMetadata} structure.
- *
- * @param metadata the {@link ACameraMetadata} to be freed.
- */
-void ACameraMetadata_free(ACameraMetadata* metadata);
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-#endif //_NDK_CAMERA_METADATA_H
-
-/** @} */
diff --git a/include/camera/ndk/NdkCameraMetadataTags.h b/include/camera/ndk/NdkCameraMetadataTags.h
deleted file mode 100644
index e7f6989..0000000
--- a/include/camera/ndk/NdkCameraMetadataTags.h
+++ /dev/null
@@ -1,6908 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @addtogroup Camera
- * @{
- */
-
-/**
- * @file NdkCameraMetadataTags.h
- */
-
-/*
- * This file defines an NDK API.
- * Do not remove methods.
- * Do not change method signatures.
- * Do not change the value of constants.
- * Do not change the size of any of the classes defined in here.
- * Do not reference types that are not part of the NDK.
- * Do not #include files that aren't part of the NDK.
- */
-
-#ifndef _NDK_CAMERA_METADATA_TAGS_H
-#define _NDK_CAMERA_METADATA_TAGS_H
-
-typedef enum acamera_metadata_section {
-    ACAMERA_COLOR_CORRECTION,
-    ACAMERA_CONTROL,
-    ACAMERA_DEMOSAIC,
-    ACAMERA_EDGE,
-    ACAMERA_FLASH,
-    ACAMERA_FLASH_INFO,
-    ACAMERA_HOT_PIXEL,
-    ACAMERA_JPEG,
-    ACAMERA_LENS,
-    ACAMERA_LENS_INFO,
-    ACAMERA_NOISE_REDUCTION,
-    ACAMERA_QUIRKS,
-    ACAMERA_REQUEST,
-    ACAMERA_SCALER,
-    ACAMERA_SENSOR,
-    ACAMERA_SENSOR_INFO,
-    ACAMERA_SHADING,
-    ACAMERA_STATISTICS,
-    ACAMERA_STATISTICS_INFO,
-    ACAMERA_TONEMAP,
-    ACAMERA_LED,
-    ACAMERA_INFO,
-    ACAMERA_BLACK_LEVEL,
-    ACAMERA_SYNC,
-    ACAMERA_REPROCESS,
-    ACAMERA_DEPTH,
-    ACAMERA_SECTION_COUNT,
-
-    ACAMERA_VENDOR = 0x8000
-} acamera_metadata_section_t;
-
-/**
- * Hierarchy positions in enum space.
- */
-typedef enum acamera_metadata_section_start {
-    ACAMERA_COLOR_CORRECTION_START = ACAMERA_COLOR_CORRECTION  << 16,
-    ACAMERA_CONTROL_START          = ACAMERA_CONTROL           << 16,
-    ACAMERA_DEMOSAIC_START         = ACAMERA_DEMOSAIC          << 16,
-    ACAMERA_EDGE_START             = ACAMERA_EDGE              << 16,
-    ACAMERA_FLASH_START            = ACAMERA_FLASH             << 16,
-    ACAMERA_FLASH_INFO_START       = ACAMERA_FLASH_INFO        << 16,
-    ACAMERA_HOT_PIXEL_START        = ACAMERA_HOT_PIXEL         << 16,
-    ACAMERA_JPEG_START             = ACAMERA_JPEG              << 16,
-    ACAMERA_LENS_START             = ACAMERA_LENS              << 16,
-    ACAMERA_LENS_INFO_START        = ACAMERA_LENS_INFO         << 16,
-    ACAMERA_NOISE_REDUCTION_START  = ACAMERA_NOISE_REDUCTION   << 16,
-    ACAMERA_QUIRKS_START           = ACAMERA_QUIRKS            << 16,
-    ACAMERA_REQUEST_START          = ACAMERA_REQUEST           << 16,
-    ACAMERA_SCALER_START           = ACAMERA_SCALER            << 16,
-    ACAMERA_SENSOR_START           = ACAMERA_SENSOR            << 16,
-    ACAMERA_SENSOR_INFO_START      = ACAMERA_SENSOR_INFO       << 16,
-    ACAMERA_SHADING_START          = ACAMERA_SHADING           << 16,
-    ACAMERA_STATISTICS_START       = ACAMERA_STATISTICS        << 16,
-    ACAMERA_STATISTICS_INFO_START  = ACAMERA_STATISTICS_INFO   << 16,
-    ACAMERA_TONEMAP_START          = ACAMERA_TONEMAP           << 16,
-    ACAMERA_LED_START              = ACAMERA_LED               << 16,
-    ACAMERA_INFO_START             = ACAMERA_INFO              << 16,
-    ACAMERA_BLACK_LEVEL_START      = ACAMERA_BLACK_LEVEL       << 16,
-    ACAMERA_SYNC_START             = ACAMERA_SYNC              << 16,
-    ACAMERA_REPROCESS_START        = ACAMERA_REPROCESS         << 16,
-    ACAMERA_DEPTH_START            = ACAMERA_DEPTH             << 16,
-    ACAMERA_VENDOR_START           = ACAMERA_VENDOR            << 16
-} acamera_metadata_section_start_t;
-
-/**
- * Main enum for camera metadata tags.
- */
-typedef enum acamera_metadata_tag {
-    /**
-     * <p>The mode control selects how the image data is converted from the
-     * sensor's native color into linear sRGB color.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When auto-white balance (AWB) is enabled with ACAMERA_CONTROL_AWB_MODE, this
-     * control is overridden by the AWB routine. When AWB is disabled, the
-     * application controls how the color mapping is performed.</p>
-     * <p>We define the expected processing pipeline below. For consistency
-     * across devices, this is always the case with TRANSFORM_MATRIX.</p>
-     * <p>When either FULL or HIGH_QUALITY is used, the camera device may
-     * do additional processing but ACAMERA_COLOR_CORRECTION_GAINS and
-     * ACAMERA_COLOR_CORRECTION_TRANSFORM will still be provided by the
-     * camera device (in the results) and be roughly correct.</p>
-     * <p>Switching to TRANSFORM_MATRIX and using the data provided from
-     * FAST or HIGH_QUALITY will yield a picture with the same white point
-     * as what was produced by the camera device in the earlier frame.</p>
-     * <p>The expected processing pipeline is as follows:</p>
-     * <p><img alt="White balance processing pipeline" src="../images/camera2/metadata/android.colorCorrection.mode/processing_pipeline.png" /></p>
-     * <p>The white balance is encoded by two values, a 4-channel white-balance
-     * gain vector (applied in the Bayer domain), and a 3x3 color transform
-     * matrix (applied after demosaic).</p>
-     * <p>The 4-channel white-balance gains are defined as:</p>
-     * <pre><code>ACAMERA_COLOR_CORRECTION_GAINS = [ R G_even G_odd B ]
-     * </code></pre>
-     * <p>where <code>G_even</code> is the gain for green pixels on even rows of the
-     * output, and <code>G_odd</code> is the gain for green pixels on the odd rows.
-     * These may be identical for a given camera device implementation; if
-     * the camera device does not support a separate gain for even/odd green
-     * channels, it will use the <code>G_even</code> value, and write <code>G_odd</code> equal to
-     * <code>G_even</code> in the output result metadata.</p>
-     * <p>The matrices for color transforms are defined as a 9-entry vector:</p>
-     * <pre><code>ACAMERA_COLOR_CORRECTION_TRANSFORM = [ I0 I1 I2 I3 I4 I5 I6 I7 I8 ]
-     * </code></pre>
-     * <p>which define a transform from input sensor colors, <code>P_in = [ r g b ]</code>,
-     * to output linear sRGB, <code>P_out = [ r' g' b' ]</code>,</p>
-     * <p>with colors as follows:</p>
-     * <pre><code>r' = I0r + I1g + I2b
-     * g' = I3r + I4g + I5b
-     * b' = I6r + I7g + I8b
-     * </code></pre>
-     * <p>Both the input and output value ranges must match. Overflow/underflow
-     * values are clipped to fit within the range.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_MODE =                             // byte (enum)
-            ACAMERA_COLOR_CORRECTION_START,
-    /**
-     * <p>A color transform matrix to use to transform
-     * from sensor RGB color space to output linear sRGB color space.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This matrix is either set by the camera device when the request
-     * ACAMERA_COLOR_CORRECTION_MODE is not TRANSFORM_MATRIX, or
-     * directly by the application in the request when the
-     * ACAMERA_COLOR_CORRECTION_MODE is TRANSFORM_MATRIX.</p>
-     * <p>In the latter case, the camera device may round the matrix to account
-     * for precision issues; the final rounded matrix should be reported back
-     * in this matrix result metadata. The transform should keep the magnitude
-     * of the output color values within <code>[0, 1.0]</code> (assuming input color
-     * values is within the normalized range <code>[0, 1.0]</code>), or clipping may occur.</p>
-     * <p>The valid range of each matrix element varies on different devices, but
-     * values within [-1.5, 3.0] are guaranteed not to be clipped.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_TRANSFORM =                        // rational[3*3]
-            ACAMERA_COLOR_CORRECTION_START + 1,
-    /**
-     * <p>Gains applying to Bayer raw color channels for
-     * white-balance.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>These per-channel gains are either set by the camera device
-     * when the request ACAMERA_COLOR_CORRECTION_MODE is not
-     * TRANSFORM_MATRIX, or directly by the application in the
-     * request when the ACAMERA_COLOR_CORRECTION_MODE is
-     * TRANSFORM_MATRIX.</p>
-     * <p>The gains in the result metadata are the gains actually
-     * applied by the camera device to the current frame.</p>
-     * <p>The valid range of gains varies on different devices, but gains
-     * between [1.0, 3.0] are guaranteed not to be clipped. Even if a given
-     * device allows gains below 1.0, this is usually not recommended because
-     * this can create color artifacts.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_GAINS =                            // float[4]
-            ACAMERA_COLOR_CORRECTION_START + 2,
-    /**
-     * <p>Mode of operation for the chromatic aberration correction algorithm.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Chromatic (color) aberration is caused by the fact that different wavelengths of light
-     * can not focus on the same point after exiting from the lens. This metadata defines
-     * the high level control of chromatic aberration correction algorithm, which aims to
-     * minimize the chromatic artifacts that may occur along the object boundaries in an
-     * image.</p>
-     * <p>FAST/HIGH_QUALITY both mean that camera device determined aberration
-     * correction will be applied. HIGH_QUALITY mode indicates that the camera device will
-     * use the highest-quality aberration correction algorithms, even if it slows down
-     * capture rate. FAST means the camera device will not slow down capture rate when
-     * applying aberration correction.</p>
-     * <p>LEGACY devices will always be in FAST mode.</p>
-     */
-    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE =                  // byte (enum)
-            ACAMERA_COLOR_CORRECTION_START + 3,
-    /**
-     * <p>List of aberration correction modes for ACAMERA_COLOR_CORRECTION_ABERRATION_MODE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This key lists the valid modes for ACAMERA_COLOR_CORRECTION_ABERRATION_MODE.  If no
-     * aberration correction modes are available for a device, this list will solely include
-     * OFF mode. All camera devices will support either OFF or FAST mode.</p>
-     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always list
-     * OFF mode. This includes all FULL level devices.</p>
-     * <p>LEGACY devices will always only support FAST mode.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES =       // byte[n]
-            ACAMERA_COLOR_CORRECTION_START + 4,
-    ACAMERA_COLOR_CORRECTION_END,
-
-    /**
-     * <p>The desired setting for the camera device's auto-exposure
-     * algorithm's antibanding compensation.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Some kinds of lighting fixtures, such as some fluorescent
-     * lights, flicker at the rate of the power supply frequency
-     * (60Hz or 50Hz, depending on country). While this is
-     * typically not noticeable to a person, it can be visible to
-     * a camera device. If a camera sets its exposure time to the
-     * wrong value, the flicker may become visible in the
-     * viewfinder as flicker or in a final captured image, as a
-     * set of variable-brightness bands across the image.</p>
-     * <p>Therefore, the auto-exposure routines of camera devices
-     * include antibanding routines that ensure that the chosen
-     * exposure value will not cause such banding. The choice of
-     * exposure time depends on the rate of flicker, which the
-     * camera device can detect automatically, or the expected
-     * rate can be selected by the application using this
-     * control.</p>
-     * <p>A given camera device may not support all of the possible
-     * options for the antibanding mode. The
-     * ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES key contains
-     * the available modes for a given camera device.</p>
-     * <p>AUTO mode is the default if it is available on given
-     * camera device. When AUTO mode is not available, the
-     * default will be either 50HZ or 60HZ, and both 50HZ
-     * and 60HZ will be available.</p>
-     * <p>If manual exposure control is enabled (by setting
-     * ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE to OFF),
-     * then this setting has no effect, and the application must
-     * ensure it selects exposure times that do not cause banding
-     * issues. The ACAMERA_STATISTICS_SCENE_FLICKER key can assist
-     * the application in this.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_STATISTICS_SCENE_FLICKER
-     */
-    ACAMERA_CONTROL_AE_ANTIBANDING_MODE =                       // byte (enum)
-            ACAMERA_CONTROL_START,
-    /**
-     * <p>Adjustment to auto-exposure (AE) target image
-     * brightness.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The adjustment is measured as a count of steps, with the
-     * step size defined by ACAMERA_CONTROL_AE_COMPENSATION_STEP and the
-     * allowed range by ACAMERA_CONTROL_AE_COMPENSATION_RANGE.</p>
-     * <p>For example, if the exposure value (EV) step is 0.333, '6'
-     * will mean an exposure compensation of +2 EV; -3 will mean an
-     * exposure compensation of -1 EV. One EV represents a doubling
-     * of image brightness. Note that this control will only be
-     * effective if ACAMERA_CONTROL_AE_MODE <code>!=</code> OFF. This control
-     * will take effect even when ACAMERA_CONTROL_AE_LOCK <code>== true</code>.</p>
-     * <p>In the event of exposure compensation value being changed, camera device
-     * may take several frames to reach the newly requested exposure target.
-     * During that time, ACAMERA_CONTROL_AE_STATE field will be in the SEARCHING
-     * state. Once the new exposure target is reached, ACAMERA_CONTROL_AE_STATE will
-     * change from SEARCHING to either CONVERGED, LOCKED (if AE lock is enabled), or
-     * FLASH_REQUIRED (if the scene is too dark for still capture).</p>
-     *
-     * @see ACAMERA_CONTROL_AE_COMPENSATION_RANGE
-     * @see ACAMERA_CONTROL_AE_COMPENSATION_STEP
-     * @see ACAMERA_CONTROL_AE_LOCK
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AE_STATE
-     */
-    ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION =                  // int32
-            ACAMERA_CONTROL_START + 1,
-    /**
-     * <p>Whether auto-exposure (AE) is currently locked to its latest
-     * calculated values.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When set to <code>true</code> (ON), the AE algorithm is locked to its latest parameters,
-     * and will not change exposure settings until the lock is set to <code>false</code> (OFF).</p>
-     * <p>Note that even when AE is locked, the flash may be fired if
-     * the ACAMERA_CONTROL_AE_MODE is ON_AUTO_FLASH /
-     * ON_ALWAYS_FLASH / ON_AUTO_FLASH_REDEYE.</p>
-     * <p>When ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION is changed, even if the AE lock
-     * is ON, the camera device will still adjust its exposure value.</p>
-     * <p>If AE precapture is triggered (see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER)
-     * when AE is already locked, the camera device will not change the exposure time
-     * (ACAMERA_SENSOR_EXPOSURE_TIME) and sensitivity (ACAMERA_SENSOR_SENSITIVITY)
-     * parameters. The flash may be fired if the ACAMERA_CONTROL_AE_MODE
-     * is ON_AUTO_FLASH/ON_AUTO_FLASH_REDEYE and the scene is too dark. If the
-     * ACAMERA_CONTROL_AE_MODE is ON_ALWAYS_FLASH, the scene may become overexposed.
-     * Similarly, AE precapture trigger CANCEL has no effect when AE is already locked.</p>
-     * <p>When an AE precapture sequence is triggered, AE unlock will not be able to unlock
-     * the AE if AE is locked by the camera device internally during precapture metering
-     * sequence In other words, submitting requests with AE unlock has no effect for an
-     * ongoing precapture metering sequence. Otherwise, the precapture metering sequence
-     * will never succeed in a sequence of preview requests where AE lock is always set
-     * to <code>false</code>.</p>
-     * <p>Since the camera device has a pipeline of in-flight requests, the settings that
-     * get locked do not necessarily correspond to the settings that were present in the
-     * latest capture result received from the camera device, since additional captures
-     * and AE updates may have occurred even before the result was sent out. If an
-     * application is switching between automatic and manual control and wishes to eliminate
-     * any flicker during the switch, the following procedure is recommended:</p>
-     * <ol>
-     * <li>Starting in auto-AE mode:</li>
-     * <li>Lock AE</li>
-     * <li>Wait for the first result to be output that has the AE locked</li>
-     * <li>Copy exposure settings from that result into a request, set the request to manual AE</li>
-     * <li>Submit the capture request, proceed to run manual AE as desired.</li>
-     * </ol>
-     * <p>See ACAMERA_CONTROL_AE_STATE for AE lock related state transition details.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_AE_STATE
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_AE_LOCK =                                   // byte (enum)
-            ACAMERA_CONTROL_START + 2,
-    /**
-     * <p>The desired mode for the camera device's
-     * auto-exposure routine.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control is only effective if ACAMERA_CONTROL_MODE is
-     * AUTO.</p>
-     * <p>When set to any of the ON modes, the camera device's
-     * auto-exposure routine is enabled, overriding the
-     * application's selected exposure time, sensor sensitivity,
-     * and frame duration (ACAMERA_SENSOR_EXPOSURE_TIME,
-     * ACAMERA_SENSOR_SENSITIVITY, and
-     * ACAMERA_SENSOR_FRAME_DURATION). If one of the FLASH modes
-     * is selected, the camera device's flash unit controls are
-     * also overridden.</p>
-     * <p>The FLASH modes are only available if the camera device
-     * has a flash unit (ACAMERA_FLASH_INFO_AVAILABLE is <code>true</code>).</p>
-     * <p>If flash TORCH mode is desired, this field must be set to
-     * ON or OFF, and ACAMERA_FLASH_MODE set to TORCH.</p>
-     * <p>When set to any of the ON modes, the values chosen by the
-     * camera device auto-exposure routine for the overridden
-     * fields for a given capture will be available in its
-     * CaptureResult.</p>
-     *
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_FLASH_INFO_AVAILABLE
-     * @see ACAMERA_FLASH_MODE
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_AE_MODE =                                   // byte (enum)
-            ACAMERA_CONTROL_START + 3,
-    /**
-     * <p>List of metering areas to use for auto-exposure adjustment.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Not available if android.control.maxRegionsAe is 0.
-     * Otherwise will always be present.</p>
-     * <p>The maximum number of regions supported by the device is determined by the value
-     * of android.control.maxRegionsAe.</p>
-     * <p>The data representation is int[5 * area_count].
-     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
-     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
-     * ymax.</p>
-     * <p>The coordinate system is based on the active pixel array,
-     * with (0,0) being the top-left pixel in the active pixel array, and
-     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
-     * bottom-right pixel in the active pixel array.</p>
-     * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight
-     * for every pixel in the area. This means that a large metering area
-     * with the same weight as a smaller area will have more effect in
-     * the metering result. Metering areas can partially overlap and the
-     * camera device will add the weights in the overlap region.</p>
-     * <p>The weights are relative to weights of other exposure metering regions, so if only one
-     * region is used, all non-zero weights will have the same effect. A region with 0
-     * weight is ignored.</p>
-     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
-     * camera device.</p>
-     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
-     * capture result metadata, the camera device will ignore the sections outside the crop
-     * region and output only the intersection rectangle as the metering region in the result
-     * metadata.  If the region is entirely outside the crop region, it will be ignored and
-     * not reported in the result metadata.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_CONTROL_AE_REGIONS =                                // int32[5*area_count]
-            ACAMERA_CONTROL_START + 4,
-    /**
-     * <p>Range over which the auto-exposure routine can
-     * adjust the capture frame rate to maintain good
-     * exposure.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Only constrains auto-exposure (AE) algorithm, not
-     * manual control of ACAMERA_SENSOR_EXPOSURE_TIME and
-     * ACAMERA_SENSOR_FRAME_DURATION.</p>
-     *
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     */
-    ACAMERA_CONTROL_AE_TARGET_FPS_RANGE =                       // int32[2]
-            ACAMERA_CONTROL_START + 5,
-    /**
-     * <p>Whether the camera device will trigger a precapture
-     * metering sequence when it processes this request.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This entry is normally set to IDLE, or is not
-     * included at all in the request settings. When included and
-     * set to START, the camera device will trigger the auto-exposure (AE)
-     * precapture metering sequence.</p>
-     * <p>When set to CANCEL, the camera device will cancel any active
-     * precapture metering trigger, and return to its initial AE state.
-     * If a precapture metering sequence is already completed, and the camera
-     * device has implicitly locked the AE for subsequent still capture, the
-     * CANCEL trigger will unlock the AE and return to its initial AE state.</p>
-     * <p>The precapture sequence should be triggered before starting a
-     * high-quality still capture for final metering decisions to
-     * be made, and for firing pre-capture flash pulses to estimate
-     * scene brightness and required final capture flash power, when
-     * the flash is enabled.</p>
-     * <p>Normally, this entry should be set to START for only a
-     * single request, and the application should wait until the
-     * sequence completes before starting a new one.</p>
-     * <p>When a precapture metering sequence is finished, the camera device
-     * may lock the auto-exposure routine internally to be able to accurately expose the
-     * subsequent still capture image (<code>ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE</code>).
-     * For this case, the AE may not resume normal scan if no subsequent still capture is
-     * submitted. To ensure that the AE routine restarts normal scan, the application should
-     * submit a request with <code>ACAMERA_CONTROL_AE_LOCK == true</code>, followed by a request
-     * with <code>ACAMERA_CONTROL_AE_LOCK == false</code>, if the application decides not to submit a
-     * still capture request after the precapture sequence completes. Alternatively, for
-     * API level 23 or newer devices, the CANCEL can be used to unlock the camera device
-     * internally locked AE if the application doesn't submit a still capture request after
-     * the AE precapture trigger. Note that, the CANCEL was added in API level 23, and must not
-     * be used in devices that have earlier API levels.</p>
-     * <p>The exact effect of auto-exposure (AE) precapture trigger
-     * depends on the current AE mode and state; see
-     * ACAMERA_CONTROL_AE_STATE for AE precapture state transition
-     * details.</p>
-     * <p>On LEGACY-level devices, the precapture trigger is not supported;
-     * capturing a high-resolution JPEG image will automatically trigger a
-     * precapture sequence before the high-resolution capture, including
-     * potentially firing a pre-capture flash.</p>
-     * <p>Using the precapture trigger and the auto-focus trigger ACAMERA_CONTROL_AF_TRIGGER
-     * simultaneously is allowed. However, since these triggers often require cooperation between
-     * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a
-     * focus sweep), the camera device may delay acting on a later trigger until the previous
-     * trigger has been fully handled. This may lead to longer intervals between the trigger and
-     * changes to ACAMERA_CONTROL_AE_STATE indicating the start of the precapture sequence, for
-     * example.</p>
-     * <p>If both the precapture and the auto-focus trigger are activated on the same request, then
-     * the camera device will complete them in the optimal order for that device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_LOCK
-     * @see ACAMERA_CONTROL_AE_STATE
-     * @see ACAMERA_CONTROL_AF_TRIGGER
-     * @see ACAMERA_CONTROL_CAPTURE_INTENT
-     */
-    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER =                     // byte (enum)
-            ACAMERA_CONTROL_START + 6,
-    /**
-     * <p>Whether auto-focus (AF) is currently enabled, and what
-     * mode it is set to.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Only effective if ACAMERA_CONTROL_MODE = AUTO and the lens is not fixed focus
-     * (i.e. <code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE &gt; 0</code>). Also note that
-     * when ACAMERA_CONTROL_AE_MODE is OFF, the behavior of AF is device
-     * dependent. It is recommended to lock AF by using ACAMERA_CONTROL_AF_TRIGGER before
-     * setting ACAMERA_CONTROL_AE_MODE to OFF, or set AF mode to OFF when AE is OFF.</p>
-     * <p>If the lens is controlled by the camera device auto-focus algorithm,
-     * the camera device will report the current AF status in ACAMERA_CONTROL_AF_STATE
-     * in result metadata.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AF_STATE
-     * @see ACAMERA_CONTROL_AF_TRIGGER
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_CONTROL_AF_MODE =                                   // byte (enum)
-            ACAMERA_CONTROL_START + 7,
-    /**
-     * <p>List of metering areas to use for auto-focus.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Not available if android.control.maxRegionsAf is 0.
-     * Otherwise will always be present.</p>
-     * <p>The maximum number of focus areas supported by the device is determined by the value
-     * of android.control.maxRegionsAf.</p>
-     * <p>The data representation is int[5 * area_count].
-     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
-     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
-     * ymax.</p>
-     * <p>The coordinate system is based on the active pixel array,
-     * with (0,0) being the top-left pixel in the active pixel array, and
-     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
-     * bottom-right pixel in the active pixel array.</p>
-     * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight
-     * for every pixel in the area. This means that a large metering area
-     * with the same weight as a smaller area will have more effect in
-     * the metering result. Metering areas can partially overlap and the
-     * camera device will add the weights in the overlap region.</p>
-     * <p>The weights are relative to weights of other metering regions, so if only one region
-     * is used, all non-zero weights will have the same effect. A region with 0 weight is
-     * ignored.</p>
-     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
-     * camera device.</p>
-     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
-     * capture result metadata, the camera device will ignore the sections outside the crop
-     * region and output only the intersection rectangle as the metering region in the result
-     * metadata. If the region is entirely outside the crop region, it will be ignored and
-     * not reported in the result metadata.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_CONTROL_AF_REGIONS =                                // int32[5*area_count]
-            ACAMERA_CONTROL_START + 8,
-    /**
-     * <p>Whether the camera device will trigger autofocus for this request.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This entry is normally set to IDLE, or is not
-     * included at all in the request settings.</p>
-     * <p>When included and set to START, the camera device will trigger the
-     * autofocus algorithm. If autofocus is disabled, this trigger has no effect.</p>
-     * <p>When set to CANCEL, the camera device will cancel any active trigger,
-     * and return to its initial AF state.</p>
-     * <p>Generally, applications should set this entry to START or CANCEL for only a
-     * single capture, and then return it to IDLE (or not set at all). Specifying
-     * START for multiple captures in a row means restarting the AF operation over
-     * and over again.</p>
-     * <p>See ACAMERA_CONTROL_AF_STATE for what the trigger means for each AF mode.</p>
-     * <p>Using the autofocus trigger and the precapture trigger ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * simultaneously is allowed. However, since these triggers often require cooperation between
-     * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a
-     * focus sweep), the camera device may delay acting on a later trigger until the previous
-     * trigger has been fully handled. This may lead to longer intervals between the trigger and
-     * changes to ACAMERA_CONTROL_AF_STATE, for example.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_AF_STATE
-     */
-    ACAMERA_CONTROL_AF_TRIGGER =                                // byte (enum)
-            ACAMERA_CONTROL_START + 9,
-    /**
-     * <p>Whether auto-white balance (AWB) is currently locked to its
-     * latest calculated values.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When set to <code>true</code> (ON), the AWB algorithm is locked to its latest parameters,
-     * and will not change color balance settings until the lock is set to <code>false</code> (OFF).</p>
-     * <p>Since the camera device has a pipeline of in-flight requests, the settings that
-     * get locked do not necessarily correspond to the settings that were present in the
-     * latest capture result received from the camera device, since additional captures
-     * and AWB updates may have occurred even before the result was sent out. If an
-     * application is switching between automatic and manual control and wishes to eliminate
-     * any flicker during the switch, the following procedure is recommended:</p>
-     * <ol>
-     * <li>Starting in auto-AWB mode:</li>
-     * <li>Lock AWB</li>
-     * <li>Wait for the first result to be output that has the AWB locked</li>
-     * <li>Copy AWB settings from that result into a request, set the request to manual AWB</li>
-     * <li>Submit the capture request, proceed to run manual AWB as desired.</li>
-     * </ol>
-     * <p>Note that AWB lock is only meaningful when
-     * ACAMERA_CONTROL_AWB_MODE is in the AUTO mode; in other modes,
-     * AWB is already fixed to a specific setting.</p>
-     * <p>Some LEGACY devices may not support ON; the value is then overridden to OFF.</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_CONTROL_AWB_LOCK =                                  // byte (enum)
-            ACAMERA_CONTROL_START + 10,
-    /**
-     * <p>Whether auto-white balance (AWB) is currently setting the color
-     * transform fields, and what its illumination target
-     * is.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control is only effective if ACAMERA_CONTROL_MODE is AUTO.</p>
-     * <p>When set to the ON mode, the camera device's auto-white balance
-     * routine is enabled, overriding the application's selected
-     * ACAMERA_COLOR_CORRECTION_TRANSFORM, ACAMERA_COLOR_CORRECTION_GAINS and
-     * ACAMERA_COLOR_CORRECTION_MODE. Note that when ACAMERA_CONTROL_AE_MODE
-     * is OFF, the behavior of AWB is device dependent. It is recommened to
-     * also set AWB mode to OFF or lock AWB by using ACAMERA_CONTROL_AWB_LOCK before
-     * setting AE mode to OFF.</p>
-     * <p>When set to the OFF mode, the camera device's auto-white balance
-     * routine is disabled. The application manually controls the white
-     * balance by ACAMERA_COLOR_CORRECTION_TRANSFORM, ACAMERA_COLOR_CORRECTION_GAINS
-     * and ACAMERA_COLOR_CORRECTION_MODE.</p>
-     * <p>When set to any other modes, the camera device's auto-white
-     * balance routine is disabled. The camera device uses each
-     * particular illumination target for white balance
-     * adjustment. The application's values for
-     * ACAMERA_COLOR_CORRECTION_TRANSFORM,
-     * ACAMERA_COLOR_CORRECTION_GAINS and
-     * ACAMERA_COLOR_CORRECTION_MODE are ignored.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_MODE
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AWB_LOCK
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_CONTROL_AWB_MODE =                                  // byte (enum)
-            ACAMERA_CONTROL_START + 11,
-    /**
-     * <p>List of metering areas to use for auto-white-balance illuminant
-     * estimation.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Not available if android.control.maxRegionsAwb is 0.
-     * Otherwise will always be present.</p>
-     * <p>The maximum number of regions supported by the device is determined by the value
-     * of android.control.maxRegionsAwb.</p>
-     * <p>The data representation is int[5 * area_count].
-     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
-     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
-     * ymax.</p>
-     * <p>The coordinate system is based on the active pixel array,
-     * with (0,0) being the top-left pixel in the active pixel array, and
-     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
-     * bottom-right pixel in the active pixel array.</p>
-     * <p>The weight must range from 0 to 1000, and represents a weight
-     * for every pixel in the area. This means that a large metering area
-     * with the same weight as a smaller area will have more effect in
-     * the metering result. Metering areas can partially overlap and the
-     * camera device will add the weights in the overlap region.</p>
-     * <p>The weights are relative to weights of other white balance metering regions, so if
-     * only one region is used, all non-zero weights will have the same effect. A region with
-     * 0 weight is ignored.</p>
-     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
-     * camera device.</p>
-     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
-     * capture result metadata, the camera device will ignore the sections outside the crop
-     * region and output only the intersection rectangle as the metering region in the result
-     * metadata.  If the region is entirely outside the crop region, it will be ignored and
-     * not reported in the result metadata.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_CONTROL_AWB_REGIONS =                               // int32[5*area_count]
-            ACAMERA_CONTROL_START + 12,
-    /**
-     * <p>Information to the camera device 3A (auto-exposure,
-     * auto-focus, auto-white balance) routines about the purpose
-     * of this capture, to help the camera device to decide optimal 3A
-     * strategy.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control (except for MANUAL) is only effective if
-     * <code>ACAMERA_CONTROL_MODE != OFF</code> and any 3A routine is active.</p>
-     * <p>ZERO_SHUTTER_LAG will be supported if ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * contains PRIVATE_REPROCESSING or YUV_REPROCESSING. MANUAL will be supported if
-     * ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains MANUAL_SENSOR. Other intent values are
-     * always supported.</p>
-     *
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT =                            // byte (enum)
-            ACAMERA_CONTROL_START + 13,
-    /**
-     * <p>A special color effect to apply.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When this mode is set, a color effect will be applied
-     * to images produced by the camera device. The interpretation
-     * and implementation of these color effects is left to the
-     * implementor of the camera device, and should not be
-     * depended on to be consistent (or present) across all
-     * devices.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE =                               // byte (enum)
-            ACAMERA_CONTROL_START + 14,
-    /**
-     * <p>Overall mode of 3A (auto-exposure, auto-white-balance, auto-focus) control
-     * routines.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This is a top-level 3A control switch. When set to OFF, all 3A control
-     * by the camera device is disabled. The application must set the fields for
-     * capture parameters itself.</p>
-     * <p>When set to AUTO, the individual algorithm controls in
-     * ACAMERA_CONTROL_* are in effect, such as ACAMERA_CONTROL_AF_MODE.</p>
-     * <p>When set to USE_SCENE_MODE, the individual controls in
-     * ACAMERA_CONTROL_* are mostly disabled, and the camera device implements
-     * one of the scene mode settings (such as ACTION, SUNSET, or PARTY)
-     * as it wishes. The camera device scene mode 3A settings are provided by
-     * capture results {@link ACameraMetadata} from
-     * {@link ACameraCaptureSession_captureCallback_result}.</p>
-     * <p>When set to OFF_KEEP_STATE, it is similar to OFF mode, the only difference
-     * is that this frame will not be used by camera device background 3A statistics
-     * update, as if this frame is never captured. This mode can be used in the scenario
-     * where the application doesn't want a 3A manual control capture to affect
-     * the subsequent auto 3A capture results.</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     */
-    ACAMERA_CONTROL_MODE =                                      // byte (enum)
-            ACAMERA_CONTROL_START + 15,
-    /**
-     * <p>Control for which scene mode is currently active.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Scene modes are custom camera modes optimized for a certain set of conditions and
-     * capture settings.</p>
-     * <p>This is the mode that that is active when
-     * <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code>. Aside from FACE_PRIORITY, these modes will
-     * disable ACAMERA_CONTROL_AE_MODE, ACAMERA_CONTROL_AWB_MODE, and ACAMERA_CONTROL_AF_MODE
-     * while in use.</p>
-     * <p>The interpretation and implementation of these scene modes is left
-     * to the implementor of the camera device. Their behavior will not be
-     * consistent across all devices, and any given device may only implement
-     * a subset of these modes.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_CONTROL_SCENE_MODE =                                // byte (enum)
-            ACAMERA_CONTROL_START + 16,
-    /**
-     * <p>Whether video stabilization is
-     * active.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Video stabilization automatically warps images from
-     * the camera in order to stabilize motion between consecutive frames.</p>
-     * <p>If enabled, video stabilization can modify the
-     * ACAMERA_SCALER_CROP_REGION to keep the video stream stabilized.</p>
-     * <p>Switching between different video stabilization modes may take several
-     * frames to initialize, the camera device will report the current mode
-     * in capture result metadata. For example, When "ON" mode is requested,
-     * the video stabilization modes in the first several capture results may
-     * still be "OFF", and it will become "ON" when the initialization is
-     * done.</p>
-     * <p>In addition, not all recording sizes or frame rates may be supported for
-     * stabilization by a device that reports stabilization support. It is guaranteed
-     * that an output targeting a MediaRecorder or MediaCodec will be stabilized if
-     * the recording resolution is less than or equal to 1920 x 1080 (width less than
-     * or equal to 1920, height less than or equal to 1080), and the recording
-     * frame rate is less than or equal to 30fps.  At other sizes, the CaptureResult
-     * ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE field will return
-     * OFF if the recording output is not stabilized, or if there are no output
-     * Surface types that can be stabilized.</p>
-     * <p>If a camera device supports both this mode and OIS
-     * (ACAMERA_LENS_OPTICAL_STABILIZATION_MODE), turning both modes on may
-     * produce undesirable interaction, so it is recommended not to enable
-     * both at the same time.</p>
-     *
-     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
-     * @see ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
-     * @see ACAMERA_SCALER_CROP_REGION
-     */
-    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE =                  // byte (enum)
-            ACAMERA_CONTROL_START + 17,
-    /**
-     * <p>List of auto-exposure antibanding modes for ACAMERA_CONTROL_AE_ANTIBANDING_MODE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Not all of the auto-exposure anti-banding modes may be
-     * supported by a given camera device. This field lists the
-     * valid anti-banding modes that the application may request
-     * for this camera device with the
-     * ACAMERA_CONTROL_AE_ANTIBANDING_MODE control.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
-     */
-    ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES =            // byte[n]
-            ACAMERA_CONTROL_START + 18,
-    /**
-     * <p>List of auto-exposure modes for ACAMERA_CONTROL_AE_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Not all the auto-exposure modes may be supported by a
-     * given camera device, especially if no flash unit is
-     * available. This entry lists the valid modes for
-     * ACAMERA_CONTROL_AE_MODE for this camera device.</p>
-     * <p>All camera devices support ON, and all camera devices with flash
-     * units support ON_AUTO_FLASH and ON_ALWAYS_FLASH.</p>
-     * <p>FULL mode camera devices always support OFF mode,
-     * which enables application control of camera exposure time,
-     * sensitivity, and frame duration.</p>
-     * <p>LEGACY mode camera devices never support OFF mode.
-     * LIMITED mode devices support OFF if they support the MANUAL_SENSOR
-     * capability.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     */
-    ACAMERA_CONTROL_AE_AVAILABLE_MODES =                        // byte[n]
-            ACAMERA_CONTROL_START + 19,
-    /**
-     * <p>List of frame rate ranges for ACAMERA_CONTROL_AE_TARGET_FPS_RANGE supported by
-     * this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_TARGET_FPS_RANGE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>For devices at the LEGACY level or above:</p>
-     * <ul>
-     * <li>
-     * <p>For constant-framerate recording, for each normal
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>, that is, a
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a> that has
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#quality">quality</a>
-     * in the range [
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#QUALITY_LOW">QUALITY_LOW</a>,
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#QUALITY_2160P">QUALITY_2160P</a>],
-     * if the profile is supported by the device and has
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#videoFrameRate">videoFrameRate</a>
-     * <code>x</code>, this list will always include (<code>x</code>,<code>x</code>).</p>
-     * </li>
-     * <li>
-     * <p>Also, a camera device must either not support any
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>,
-     * or support at least one
-     * normal <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>
-     * that has
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#videoFrameRate">videoFrameRate</a> <code>x</code> &gt;= 24.</p>
-     * </li>
-     * </ul>
-     * <p>For devices at the LIMITED level or above:</p>
-     * <ul>
-     * <li>For YUV_420_888 burst capture use case, this list will always include (<code>min</code>, <code>max</code>)
-     * and (<code>max</code>, <code>max</code>) where <code>min</code> &lt;= 15 and <code>max</code> = the maximum output frame rate of the
-     * maximum YUV_420_888 output size.</li>
-     * </ul>
-     */
-    ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES =            // int32[2*n]
-            ACAMERA_CONTROL_START + 20,
-    /**
-     * <p>Maximum and minimum exposure compensation values for
-     * ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION, in counts of ACAMERA_CONTROL_AE_COMPENSATION_STEP,
-     * that are supported by this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_COMPENSATION_STEP
-     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_CONTROL_AE_COMPENSATION_RANGE =                     // int32[2]
-            ACAMERA_CONTROL_START + 21,
-    /**
-     * <p>Smallest step by which the exposure compensation
-     * can be changed.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This is the unit for ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION. For example, if this key has
-     * a value of <code>1/2</code>, then a setting of <code>-2</code> for ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION means
-     * that the target EV offset for the auto-exposure routine is -1 EV.</p>
-     * <p>One unit of EV compensation changes the brightness of the captured image by a factor
-     * of two. +1 EV doubles the image brightness, while -1 EV halves the image brightness.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
-     */
-    ACAMERA_CONTROL_AE_COMPENSATION_STEP =                      // rational
-            ACAMERA_CONTROL_START + 22,
-    /**
-     * <p>List of auto-focus (AF) modes for ACAMERA_CONTROL_AF_MODE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Not all the auto-focus modes may be supported by a
-     * given camera device. This entry lists the valid modes for
-     * ACAMERA_CONTROL_AF_MODE for this camera device.</p>
-     * <p>All LIMITED and FULL mode camera devices will support OFF mode, and all
-     * camera devices with adjustable focuser units
-     * (<code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE &gt; 0</code>) will support AUTO mode.</p>
-     * <p>LEGACY devices will support OFF mode only if they support
-     * focusing to infinity (by also setting ACAMERA_LENS_FOCUS_DISTANCE to
-     * <code>0.0f</code>).</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_CONTROL_AF_AVAILABLE_MODES =                        // byte[n]
-            ACAMERA_CONTROL_START + 23,
-    /**
-     * <p>List of color effects for ACAMERA_CONTROL_EFFECT_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_CONTROL_EFFECT_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This list contains the color effect modes that can be applied to
-     * images produced by the camera device.
-     * Implementations are not expected to be consistent across all devices.
-     * If no color effect modes are available for a device, this will only list
-     * OFF.</p>
-     * <p>A color effect will only be applied if
-     * ACAMERA_CONTROL_MODE != OFF.  OFF is always included in this list.</p>
-     * <p>This control has no effect on the operation of other control routines such
-     * as auto-exposure, white balance, or focus.</p>
-     *
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_CONTROL_AVAILABLE_EFFECTS =                         // byte[n]
-            ACAMERA_CONTROL_START + 24,
-    /**
-     * <p>List of scene modes for ACAMERA_CONTROL_SCENE_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_CONTROL_SCENE_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This list contains scene modes that can be set for the camera device.
-     * Only scene modes that have been fully implemented for the
-     * camera device may be included here. Implementations are not expected
-     * to be consistent across all devices.</p>
-     * <p>If no scene modes are supported by the camera device, this
-     * will be set to DISABLED. Otherwise DISABLED will not be listed.</p>
-     * <p>FACE_PRIORITY is always listed if face detection is
-     * supported (i.e.<code>ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT &gt;
-     * 0</code>).</p>
-     *
-     * @see ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT
-     */
-    ACAMERA_CONTROL_AVAILABLE_SCENE_MODES =                     // byte[n]
-            ACAMERA_CONTROL_START + 25,
-    /**
-     * <p>List of video stabilization modes for ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
-     * that are supported by this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>OFF will always be listed.</p>
-     */
-    ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES =       // byte[n]
-            ACAMERA_CONTROL_START + 26,
-    /**
-     * <p>List of auto-white-balance modes for ACAMERA_CONTROL_AWB_MODE that are supported by this
-     * camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Not all the auto-white-balance modes may be supported by a
-     * given camera device. This entry lists the valid modes for
-     * ACAMERA_CONTROL_AWB_MODE for this camera device.</p>
-     * <p>All camera devices will support ON mode.</p>
-     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always support OFF
-     * mode, which enables application control of white balance, by using
-     * ACAMERA_COLOR_CORRECTION_TRANSFORM and ACAMERA_COLOR_CORRECTION_GAINS(ACAMERA_COLOR_CORRECTION_MODE must be set to TRANSFORM_MATRIX). This includes all FULL
-     * mode camera devices.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_MODE
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_CONTROL_AWB_AVAILABLE_MODES =                       // byte[n]
-            ACAMERA_CONTROL_START + 27,
-    /**
-     * <p>List of the maximum number of regions that can be used for metering in
-     * auto-exposure (AE), auto-white balance (AWB), and auto-focus (AF);
-     * this corresponds to the the maximum number of elements in
-     * ACAMERA_CONTROL_AE_REGIONS, ACAMERA_CONTROL_AWB_REGIONS,
-     * and ACAMERA_CONTROL_AF_REGIONS.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_REGIONS
-     * @see ACAMERA_CONTROL_AF_REGIONS
-     * @see ACAMERA_CONTROL_AWB_REGIONS
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_CONTROL_MAX_REGIONS =                               // int32[3]
-            ACAMERA_CONTROL_START + 28,
-    /**
-     * <p>Current state of the auto-exposure (AE) algorithm.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Switching between or enabling AE modes (ACAMERA_CONTROL_AE_MODE) always
-     * resets the AE state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
-     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
-     * the algorithm states to INACTIVE.</p>
-     * <p>The camera device can do several state transitions between two results, if it is
-     * allowed by the state transition table. For example: INACTIVE may never actually be
-     * seen in a result.</p>
-     * <p>The state in the result is the state for this image (in sync with this image): if
-     * AE state becomes CONVERGED, then the image data associated with this result should
-     * be good to use.</p>
-     * <p>Below are state transition tables for different AE modes.</p>
-     * <p>State       | Transition Cause | New State | Notes
-     * :------------:|:----------------:|:---------:|:-----------------------:
-     * INACTIVE      |                  | INACTIVE  | Camera device auto exposure algorithm is disabled</p>
-     * <p>When ACAMERA_CONTROL_AE_MODE is AE_MODE_ON_*:</p>
-     * <p>State        | Transition Cause                             | New State      | Notes
-     * :-------------:|:--------------------------------------------:|:--------------:|:-----------------:
-     * INACTIVE       | Camera device initiates AE scan              | SEARCHING      | Values changing
-     * INACTIVE       | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
-     * SEARCHING      | Camera device finishes AE scan               | CONVERGED      | Good values, not changing
-     * SEARCHING      | Camera device finishes AE scan               | FLASH_REQUIRED | Converged but too dark w/o flash
-     * SEARCHING      | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
-     * CONVERGED      | Camera device initiates AE scan              | SEARCHING      | Values changing
-     * CONVERGED      | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
-     * FLASH_REQUIRED | Camera device initiates AE scan              | SEARCHING      | Values changing
-     * FLASH_REQUIRED | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
-     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | SEARCHING      | Values not good after unlock
-     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | CONVERGED      | Values good after unlock
-     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | FLASH_REQUIRED | Exposure good, but too dark
-     * PRECAPTURE     | Sequence done. ACAMERA_CONTROL_AE_LOCK is OFF | CONVERGED      | Ready for high-quality capture
-     * PRECAPTURE     | Sequence done. ACAMERA_CONTROL_AE_LOCK is ON  | LOCKED         | Ready for high-quality capture
-     * LOCKED         | aeLock is ON and aePrecaptureTrigger is START | LOCKED        | Precapture trigger is ignored when AE is already locked
-     * LOCKED         | aeLock is ON and aePrecaptureTrigger is CANCEL| LOCKED        | Precapture trigger is ignored when AE is already locked
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START | PRECAPTURE     | Start AE precapture metering sequence
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL| INACTIVE       | Currently active precapture metering sequence is canceled</p>
-     * <p>For the above table, the camera device may skip reporting any state changes that happen
-     * without application intervention (i.e. mode switch, trigger, locking). Any state that
-     * can be skipped in that manner is called a transient state.</p>
-     * <p>For example, for above AE modes (AE_MODE_ON_*), in addition to the state transitions
-     * listed in above table, it is also legal for the camera device to skip one or more
-     * transient states between two results. See below table for examples:</p>
-     * <p>State        | Transition Cause                                            | New State      | Notes
-     * :-------------:|:-----------------------------------------------------------:|:--------------:|:-----------------:
-     * INACTIVE       | Camera device finished AE scan                              | CONVERGED      | Values are already good, transient states are skipped by camera device.
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START, sequence done | FLASH_REQUIRED | Converged but too dark w/o flash after a precapture sequence, transient states are skipped by camera device.
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START, sequence done | CONVERGED      | Converged after a precapture sequence, transient states are skipped by camera device.
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL, converged    | FLASH_REQUIRED | Converged but too dark w/o flash after a precapture sequence is canceled, transient states are skipped by camera device.
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL, converged    | CONVERGED      | Converged after a precapture sequenceis canceled, transient states are skipped by camera device.
-     * CONVERGED      | Camera device finished AE scan                              | FLASH_REQUIRED | Converged but too dark w/o flash after a new scan, transient states are skipped by camera device.
-     * FLASH_REQUIRED | Camera device finished AE scan                              | CONVERGED      | Converged after a new scan, transient states are skipped by camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_LOCK
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_CONTROL_SCENE_MODE
-     */
-    ACAMERA_CONTROL_AE_STATE =                                  // byte (enum)
-            ACAMERA_CONTROL_START + 31,
-    /**
-     * <p>Current state of auto-focus (AF) algorithm.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Switching between or enabling AF modes (ACAMERA_CONTROL_AF_MODE) always
-     * resets the AF state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
-     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
-     * the algorithm states to INACTIVE.</p>
-     * <p>The camera device can do several state transitions between two results, if it is
-     * allowed by the state transition table. For example: INACTIVE may never actually be
-     * seen in a result.</p>
-     * <p>The state in the result is the state for this image (in sync with this image): if
-     * AF state becomes FOCUSED, then the image data associated with this result should
-     * be sharp.</p>
-     * <p>Below are state transition tables for different AF modes.</p>
-     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_OFF or AF_MODE_EDOF:</p>
-     * <p>State       | Transition Cause | New State | Notes
-     * :------------:|:----------------:|:---------:|:-----------:
-     * INACTIVE      |                  | INACTIVE  | Never changes</p>
-     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_AUTO or AF_MODE_MACRO:</p>
-     * <p>State            | Transition Cause | New State          | Notes
-     * :-----------------:|:----------------:|:------------------:|:--------------:
-     * INACTIVE           | AF_TRIGGER       | ACTIVE_SCAN        | Start AF sweep, Lens now moving
-     * ACTIVE_SCAN        | AF sweep done    | FOCUSED_LOCKED     | Focused, Lens now locked
-     * ACTIVE_SCAN        | AF sweep done    | NOT_FOCUSED_LOCKED | Not focused, Lens now locked
-     * ACTIVE_SCAN        | AF_CANCEL        | INACTIVE           | Cancel/reset AF, Lens now locked
-     * FOCUSED_LOCKED     | AF_CANCEL        | INACTIVE           | Cancel/reset AF
-     * FOCUSED_LOCKED     | AF_TRIGGER       | ACTIVE_SCAN        | Start new sweep, Lens now moving
-     * NOT_FOCUSED_LOCKED | AF_CANCEL        | INACTIVE           | Cancel/reset AF
-     * NOT_FOCUSED_LOCKED | AF_TRIGGER       | ACTIVE_SCAN        | Start new sweep, Lens now moving
-     * Any state          | Mode change      | INACTIVE           |</p>
-     * <p>For the above table, the camera device may skip reporting any state changes that happen
-     * without application intervention (i.e. mode switch, trigger, locking). Any state that
-     * can be skipped in that manner is called a transient state.</p>
-     * <p>For example, for these AF modes (AF_MODE_AUTO and AF_MODE_MACRO), in addition to the
-     * state transitions listed in above table, it is also legal for the camera device to skip
-     * one or more transient states between two results. See below table for examples:</p>
-     * <p>State            | Transition Cause | New State          | Notes
-     * :-----------------:|:----------------:|:------------------:|:--------------:
-     * INACTIVE           | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is already good or good after a scan, lens is now locked.
-     * INACTIVE           | AF_TRIGGER       | NOT_FOCUSED_LOCKED | Focus failed after a scan, lens is now locked.
-     * FOCUSED_LOCKED     | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is already good or good after a scan, lens is now locked.
-     * NOT_FOCUSED_LOCKED | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is good after a scan, lens is not locked.</p>
-     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_CONTINUOUS_VIDEO:</p>
-     * <p>State            | Transition Cause                    | New State          | Notes
-     * :-----------------:|:-----------------------------------:|:------------------:|:--------------:
-     * INACTIVE           | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * INACTIVE           | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
-     * PASSIVE_SCAN       | Camera device completes current scan| PASSIVE_FOCUSED    | End AF scan, Lens now locked
-     * PASSIVE_SCAN       | Camera device fails current scan    | PASSIVE_UNFOCUSED  | End AF scan, Lens now locked
-     * PASSIVE_SCAN       | AF_TRIGGER                          | FOCUSED_LOCKED     | Immediate transition, if focus is good. Lens now locked
-     * PASSIVE_SCAN       | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | Immediate transition, if focus is bad. Lens now locked
-     * PASSIVE_SCAN       | AF_CANCEL                           | INACTIVE           | Reset lens position, Lens now locked
-     * PASSIVE_FOCUSED    | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * PASSIVE_UNFOCUSED  | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * PASSIVE_FOCUSED    | AF_TRIGGER                          | FOCUSED_LOCKED     | Immediate transition, lens now locked
-     * PASSIVE_UNFOCUSED  | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | Immediate transition, lens now locked
-     * FOCUSED_LOCKED     | AF_TRIGGER                          | FOCUSED_LOCKED     | No effect
-     * FOCUSED_LOCKED     | AF_CANCEL                           | INACTIVE           | Restart AF scan
-     * NOT_FOCUSED_LOCKED | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | No effect
-     * NOT_FOCUSED_LOCKED | AF_CANCEL                           | INACTIVE           | Restart AF scan</p>
-     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_CONTINUOUS_PICTURE:</p>
-     * <p>State            | Transition Cause                     | New State          | Notes
-     * :-----------------:|:------------------------------------:|:------------------:|:--------------:
-     * INACTIVE           | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * INACTIVE           | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
-     * PASSIVE_SCAN       | Camera device completes current scan | PASSIVE_FOCUSED    | End AF scan, Lens now locked
-     * PASSIVE_SCAN       | Camera device fails current scan     | PASSIVE_UNFOCUSED  | End AF scan, Lens now locked
-     * PASSIVE_SCAN       | AF_TRIGGER                           | FOCUSED_LOCKED     | Eventual transition once the focus is good. Lens now locked
-     * PASSIVE_SCAN       | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | Eventual transition if cannot find focus. Lens now locked
-     * PASSIVE_SCAN       | AF_CANCEL                            | INACTIVE           | Reset lens position, Lens now locked
-     * PASSIVE_FOCUSED    | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * PASSIVE_UNFOCUSED  | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * PASSIVE_FOCUSED    | AF_TRIGGER                           | FOCUSED_LOCKED     | Immediate trans. Lens now locked
-     * PASSIVE_UNFOCUSED  | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | Immediate trans. Lens now locked
-     * FOCUSED_LOCKED     | AF_TRIGGER                           | FOCUSED_LOCKED     | No effect
-     * FOCUSED_LOCKED     | AF_CANCEL                            | INACTIVE           | Restart AF scan
-     * NOT_FOCUSED_LOCKED | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | No effect
-     * NOT_FOCUSED_LOCKED | AF_CANCEL                            | INACTIVE           | Restart AF scan</p>
-     * <p>When switch between AF_MODE_CONTINUOUS_* (CAF modes) and AF_MODE_AUTO/AF_MODE_MACRO
-     * (AUTO modes), the initial INACTIVE or PASSIVE_SCAN states may be skipped by the
-     * camera device. When a trigger is included in a mode switch request, the trigger
-     * will be evaluated in the context of the new mode in the request.
-     * See below table for examples:</p>
-     * <p>State      | Transition Cause                       | New State                                | Notes
-     * :-----------:|:--------------------------------------:|:----------------------------------------:|:--------------:
-     * any state    | CAF--&gt;AUTO mode switch                 | INACTIVE                                 | Mode switch without trigger, initial state must be INACTIVE
-     * any state    | CAF--&gt;AUTO mode switch with AF_TRIGGER | trigger-reachable states from INACTIVE   | Mode switch with trigger, INACTIVE is skipped
-     * any state    | AUTO--&gt;CAF mode switch                 | passively reachable states from INACTIVE | Mode switch without trigger, passive transient state is skipped</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_CONTROL_SCENE_MODE
-     */
-    ACAMERA_CONTROL_AF_STATE =                                  // byte (enum)
-            ACAMERA_CONTROL_START + 32,
-    /**
-     * <p>Current state of auto-white balance (AWB) algorithm.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Switching between or enabling AWB modes (ACAMERA_CONTROL_AWB_MODE) always
-     * resets the AWB state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
-     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
-     * the algorithm states to INACTIVE.</p>
-     * <p>The camera device can do several state transitions between two results, if it is
-     * allowed by the state transition table. So INACTIVE may never actually be seen in
-     * a result.</p>
-     * <p>The state in the result is the state for this image (in sync with this image): if
-     * AWB state becomes CONVERGED, then the image data associated with this result should
-     * be good to use.</p>
-     * <p>Below are state transition tables for different AWB modes.</p>
-     * <p>When <code>ACAMERA_CONTROL_AWB_MODE != AWB_MODE_AUTO</code>:</p>
-     * <p>State       | Transition Cause | New State | Notes
-     * :------------:|:----------------:|:---------:|:-----------------------:
-     * INACTIVE      |                  |INACTIVE   |Camera device auto white balance algorithm is disabled</p>
-     * <p>When ACAMERA_CONTROL_AWB_MODE is AWB_MODE_AUTO:</p>
-     * <p>State        | Transition Cause                 | New State     | Notes
-     * :-------------:|:--------------------------------:|:-------------:|:-----------------:
-     * INACTIVE       | Camera device initiates AWB scan | SEARCHING     | Values changing
-     * INACTIVE       | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
-     * SEARCHING      | Camera device finishes AWB scan  | CONVERGED     | Good values, not changing
-     * SEARCHING      | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
-     * CONVERGED      | Camera device initiates AWB scan | SEARCHING     | Values changing
-     * CONVERGED      | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
-     * LOCKED         | ACAMERA_CONTROL_AWB_LOCK is OFF   | SEARCHING     | Values not good after unlock</p>
-     * <p>For the above table, the camera device may skip reporting any state changes that happen
-     * without application intervention (i.e. mode switch, trigger, locking). Any state that
-     * can be skipped in that manner is called a transient state.</p>
-     * <p>For example, for this AWB mode (AWB_MODE_AUTO), in addition to the state transitions
-     * listed in above table, it is also legal for the camera device to skip one or more
-     * transient states between two results. See below table for examples:</p>
-     * <p>State        | Transition Cause                 | New State     | Notes
-     * :-------------:|:--------------------------------:|:-------------:|:-----------------:
-     * INACTIVE       | Camera device finished AWB scan  | CONVERGED     | Values are already good, transient states are skipped by camera device.
-     * LOCKED         | ACAMERA_CONTROL_AWB_LOCK is OFF   | CONVERGED     | Values good after unlock, transient states are skipped by camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_LOCK
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_CONTROL_SCENE_MODE
-     */
-    ACAMERA_CONTROL_AWB_STATE =                                 // byte (enum)
-            ACAMERA_CONTROL_START + 34,
-    /**
-     * <p>Whether the camera device supports ACAMERA_CONTROL_AE_LOCK</p>
-     *
-     * @see ACAMERA_CONTROL_AE_LOCK
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Devices with MANUAL_SENSOR capability or BURST_CAPTURE capability will always
-     * list <code>true</code>. This includes FULL devices.</p>
-     */
-    ACAMERA_CONTROL_AE_LOCK_AVAILABLE =                         // byte (enum)
-            ACAMERA_CONTROL_START + 36,
-    /**
-     * <p>Whether the camera device supports ACAMERA_CONTROL_AWB_LOCK</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_LOCK
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Devices with MANUAL_POST_PROCESSING capability or BURST_CAPTURE capability will
-     * always list <code>true</code>. This includes FULL devices.</p>
-     */
-    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE =                        // byte (enum)
-            ACAMERA_CONTROL_START + 37,
-    /**
-     * <p>List of control modes for ACAMERA_CONTROL_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_CONTROL_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This list contains control modes that can be set for the camera device.
-     * LEGACY mode devices will always support AUTO mode. LIMITED and FULL
-     * devices will always support OFF, AUTO modes.</p>
-     */
-    ACAMERA_CONTROL_AVAILABLE_MODES =                           // byte[n]
-            ACAMERA_CONTROL_START + 38,
-    /**
-     * <p>Range of boosts for ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST supported
-     * by this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Devices support post RAW sensitivity boost  will advertise
-     * ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST key for controling
-     * post RAW sensitivity boost.</p>
-     * <p>This key will be <code>null</code> for devices that do not support any RAW format
-     * outputs. For devices that do support RAW format outputs, this key will always
-     * present, and if a device does not support post RAW sensitivity boost, it will
-     * list <code>(100, 100)</code> in this key.</p>
-     *
-     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
-     */
-    ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE =          // int32[2]
-            ACAMERA_CONTROL_START + 39,
-    /**
-     * <p>The amount of additional sensitivity boost applied to output images
-     * after RAW sensor data is captured.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Some camera devices support additional digital sensitivity boosting in the
-     * camera processing pipeline after sensor RAW image is captured.
-     * Such a boost will be applied to YUV/JPEG format output images but will not
-     * have effect on RAW output formats like RAW_SENSOR, RAW10, RAW12 or RAW_OPAQUE.</p>
-     * <p>This key will be <code>null</code> for devices that do not support any RAW format
-     * outputs. For devices that do support RAW format outputs, this key will always
-     * present, and if a device does not support post RAW sensitivity boost, it will
-     * list <code>100</code> in this key.</p>
-     * <p>If the camera device cannot apply the exact boost requested, it will reduce the
-     * boost to the nearest supported value.
-     * The final boost value used will be available in the output capture result.</p>
-     * <p>For devices that support post RAW sensitivity boost, the YUV/JPEG output images
-     * of such device will have the total sensitivity of
-     * <code>ACAMERA_SENSOR_SENSITIVITY * ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST / 100</code>
-     * The sensitivity of RAW format images will always be <code>ACAMERA_SENSOR_SENSITIVITY</code></p>
-     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
-     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST =                // int32
-            ACAMERA_CONTROL_START + 40,
-    ACAMERA_CONTROL_END,
-
-    /**
-     * <p>Operation mode for edge
-     * enhancement.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Edge enhancement improves sharpness and details in the captured image. OFF means
-     * no enhancement will be applied by the camera device.</p>
-     * <p>FAST/HIGH_QUALITY both mean camera device determined enhancement
-     * will be applied. HIGH_QUALITY mode indicates that the
-     * camera device will use the highest-quality enhancement algorithms,
-     * even if it slows down capture rate. FAST means the camera device will
-     * not slow down capture rate when applying edge enhancement. FAST may be the same as OFF if
-     * edge enhancement will slow down capture rate. Every output stream will have a similar
-     * amount of enhancement applied.</p>
-     * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular
-     * buffer of high-resolution images during preview and reprocess image(s) from that buffer
-     * into a final capture when triggered by the user. In this mode, the camera device applies
-     * edge enhancement to low-resolution streams (below maximum recording resolution) to
-     * maximize preview quality, but does not apply edge enhancement to high-resolution streams,
-     * since those will be reprocessed later if necessary.</p>
-     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera
-     * device will apply FAST/HIGH_QUALITY YUV-domain edge enhancement, respectively.
-     * The camera device may adjust its internal edge enhancement parameters for best
-     * image quality based on the android.reprocess.effectiveExposureFactor, if it is set.</p>
-     */
-    ACAMERA_EDGE_MODE =                                         // byte (enum)
-            ACAMERA_EDGE_START,
-    /**
-     * <p>List of edge enhancement modes for ACAMERA_EDGE_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_EDGE_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Full-capability camera devices must always support OFF; camera devices that support
-     * YUV_REPROCESSING or PRIVATE_REPROCESSING will list ZERO_SHUTTER_LAG; all devices will
-     * list FAST.</p>
-     */
-    ACAMERA_EDGE_AVAILABLE_EDGE_MODES =                         // byte[n]
-            ACAMERA_EDGE_START + 2,
-    ACAMERA_EDGE_END,
-
-    /**
-     * <p>The desired mode for for the camera device's flash control.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control is only effective when flash unit is available
-     * (<code>ACAMERA_FLASH_INFO_AVAILABLE == true</code>).</p>
-     * <p>When this control is used, the ACAMERA_CONTROL_AE_MODE must be set to ON or OFF.
-     * Otherwise, the camera device auto-exposure related flash control (ON_AUTO_FLASH,
-     * ON_ALWAYS_FLASH, or ON_AUTO_FLASH_REDEYE) will override this control.</p>
-     * <p>When set to OFF, the camera device will not fire flash for this capture.</p>
-     * <p>When set to SINGLE, the camera device will fire flash regardless of the camera
-     * device's auto-exposure routine's result. When used in still capture case, this
-     * control should be used along with auto-exposure (AE) precapture metering sequence
-     * (ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER), otherwise, the image may be incorrectly exposed.</p>
-     * <p>When set to TORCH, the flash will be on continuously. This mode can be used
-     * for use cases such as preview, auto-focus assist, still capture, or video recording.</p>
-     * <p>The flash status will be reported by ACAMERA_FLASH_STATE in the capture result metadata.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_FLASH_INFO_AVAILABLE
-     * @see ACAMERA_FLASH_STATE
-     */
-    ACAMERA_FLASH_MODE =                                        // byte (enum)
-            ACAMERA_FLASH_START + 2,
-    /**
-     * <p>Current state of the flash
-     * unit.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>When the camera device doesn't have flash unit
-     * (i.e. <code>ACAMERA_FLASH_INFO_AVAILABLE == false</code>), this state will always be UNAVAILABLE.
-     * Other states indicate the current flash status.</p>
-     * <p>In certain conditions, this will be available on LEGACY devices:</p>
-     * <ul>
-     * <li>Flash-less cameras always return UNAVAILABLE.</li>
-     * <li>Using ACAMERA_CONTROL_AE_MODE <code>==</code> ON_ALWAYS_FLASH
-     *    will always return FIRED.</li>
-     * <li>Using ACAMERA_FLASH_MODE <code>==</code> TORCH
-     *    will always return FIRED.</li>
-     * </ul>
-     * <p>In all other conditions the state will not be available on
-     * LEGACY devices (i.e. it will be <code>null</code>).</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_FLASH_INFO_AVAILABLE
-     * @see ACAMERA_FLASH_MODE
-     */
-    ACAMERA_FLASH_STATE =                                       // byte (enum)
-            ACAMERA_FLASH_START + 5,
-    ACAMERA_FLASH_END,
-
-    /**
-     * <p>Whether this camera device has a
-     * flash unit.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Will be <code>false</code> if no flash is available.</p>
-     * <p>If there is no flash unit, none of the flash controls do
-     * anything.</p>
-     */
-    ACAMERA_FLASH_INFO_AVAILABLE =                              // byte (enum)
-            ACAMERA_FLASH_INFO_START,
-    ACAMERA_FLASH_INFO_END,
-
-    /**
-     * <p>Operational mode for hot pixel correction.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Hotpixel correction interpolates out, or otherwise removes, pixels
-     * that do not accurately measure the incoming light (i.e. pixels that
-     * are stuck at an arbitrary value or are oversensitive).</p>
-     */
-    ACAMERA_HOT_PIXEL_MODE =                                    // byte (enum)
-            ACAMERA_HOT_PIXEL_START,
-    /**
-     * <p>List of hot pixel correction modes for ACAMERA_HOT_PIXEL_MODE that are supported by this
-     * camera device.</p>
-     *
-     * @see ACAMERA_HOT_PIXEL_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>FULL mode camera devices will always support FAST.</p>
-     */
-    ACAMERA_HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES =               // byte[n]
-            ACAMERA_HOT_PIXEL_START + 1,
-    ACAMERA_HOT_PIXEL_END,
-
-    /**
-     * <p>GPS coordinates to include in output JPEG
-     * EXIF.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_JPEG_GPS_COORDINATES =                              // double[3]
-            ACAMERA_JPEG_START,
-    /**
-     * <p>32 characters describing GPS algorithm to
-     * include in EXIF.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_JPEG_GPS_PROCESSING_METHOD =                        // byte
-            ACAMERA_JPEG_START + 1,
-    /**
-     * <p>Time GPS fix was made to include in
-     * EXIF.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_JPEG_GPS_TIMESTAMP =                                // int64
-            ACAMERA_JPEG_START + 2,
-    /**
-     * <p>The orientation for a JPEG image.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The clockwise rotation angle in degrees, relative to the orientation
-     * to the camera, that the JPEG picture needs to be rotated by, to be viewed
-     * upright.</p>
-     * <p>Camera devices may either encode this value into the JPEG EXIF header, or
-     * rotate the image data to match this orientation. When the image data is rotated,
-     * the thumbnail data will also be rotated.</p>
-     * <p>Note that this orientation is relative to the orientation of the camera sensor, given
-     * by ACAMERA_SENSOR_ORIENTATION.</p>
-     * <p>To translate from the device orientation given by the Android sensor APIs, the following
-     * sample code may be used:</p>
-     * <pre><code>private int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) {
-     *     if (deviceOrientation == android.view.OrientationEventListener.ORIENTATION_UNKNOWN) return 0;
-     *     int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION);
-     *
-     *     // Round device orientation to a multiple of 90
-     *     deviceOrientation = (deviceOrientation + 45) / 90 * 90;
-     *
-     *     // Reverse device orientation for front-facing cameras
-     *     boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT;
-     *     if (facingFront) deviceOrientation = -deviceOrientation;
-     *
-     *     // Calculate desired JPEG orientation relative to camera orientation to make
-     *     // the image upright relative to the device orientation
-     *     int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360;
-     *
-     *     return jpegOrientation;
-     * }
-     * </code></pre>
-     *
-     * @see ACAMERA_SENSOR_ORIENTATION
-     */
-    ACAMERA_JPEG_ORIENTATION =                                  // int32
-            ACAMERA_JPEG_START + 3,
-    /**
-     * <p>Compression quality of the final JPEG
-     * image.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>85-95 is typical usage range.</p>
-     */
-    ACAMERA_JPEG_QUALITY =                                      // byte
-            ACAMERA_JPEG_START + 4,
-    /**
-     * <p>Compression quality of JPEG
-     * thumbnail.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_JPEG_THUMBNAIL_QUALITY =                            // byte
-            ACAMERA_JPEG_START + 5,
-    /**
-     * <p>Resolution of embedded JPEG thumbnail.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When set to (0, 0) value, the JPEG EXIF will not contain thumbnail,
-     * but the captured JPEG will still be a valid image.</p>
-     * <p>For best results, when issuing a request for a JPEG image, the thumbnail size selected
-     * should have the same aspect ratio as the main JPEG output.</p>
-     * <p>If the thumbnail image aspect ratio differs from the JPEG primary image aspect
-     * ratio, the camera device creates the thumbnail by cropping it from the primary image.
-     * For example, if the primary image has 4:3 aspect ratio, the thumbnail image has
-     * 16:9 aspect ratio, the primary image will be cropped vertically (letterbox) to
-     * generate the thumbnail image. The thumbnail image will always have a smaller Field
-     * Of View (FOV) than the primary image when aspect ratios differ.</p>
-     * <p>When an ACAMERA_JPEG_ORIENTATION of non-zero degree is requested,
-     * the camera device will handle thumbnail rotation in one of the following ways:</p>
-     * <ul>
-     * <li>Set the
-     *   <a href="https://developer.android.com/reference/android/media/ExifInterface.html#TAG_ORIENTATION">EXIF orientation flag</a>
-     *   and keep jpeg and thumbnail image data unrotated.</li>
-     * <li>Rotate the jpeg and thumbnail image data and not set
-     *   <a href="https://developer.android.com/reference/android/media/ExifInterface.html#TAG_ORIENTATION">EXIF orientation flag</a>.
-     *   In this case, LIMITED or FULL hardware level devices will report rotated thumnail size
-     *   in capture result, so the width and height will be interchanged if 90 or 270 degree
-     *   orientation is requested. LEGACY device will always report unrotated thumbnail size.</li>
-     * </ul>
-     *
-     * @see ACAMERA_JPEG_ORIENTATION
-     */
-    ACAMERA_JPEG_THUMBNAIL_SIZE =                               // int32[2]
-            ACAMERA_JPEG_START + 6,
-    /**
-     * <p>List of JPEG thumbnail sizes for ACAMERA_JPEG_THUMBNAIL_SIZE supported by this
-     * camera device.</p>
-     *
-     * @see ACAMERA_JPEG_THUMBNAIL_SIZE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This list will include at least one non-zero resolution, plus <code>(0,0)</code> for indicating no
-     * thumbnail should be generated.</p>
-     * <p>Below condiditions will be satisfied for this size list:</p>
-     * <ul>
-     * <li>The sizes will be sorted by increasing pixel area (width x height).
-     * If several resolutions have the same area, they will be sorted by increasing width.</li>
-     * <li>The aspect ratio of the largest thumbnail size will be same as the
-     * aspect ratio of largest JPEG output size in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS.
-     * The largest size is defined as the size that has the largest pixel area
-     * in a given size list.</li>
-     * <li>Each output JPEG size in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS will have at least
-     * one corresponding size that has the same aspect ratio in availableThumbnailSizes,
-     * and vice versa.</li>
-     * <li>All non-<code>(0, 0)</code> sizes will have non-zero widths and heights.</li>
-     * </ul>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
-     */
-    ACAMERA_JPEG_AVAILABLE_THUMBNAIL_SIZES =                    // int32[2*n]
-            ACAMERA_JPEG_START + 7,
-    ACAMERA_JPEG_END,
-
-    /**
-     * <p>The desired lens aperture size, as a ratio of lens focal length to the
-     * effective aperture diameter.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Setting this value is only supported on the camera devices that have a variable
-     * aperture lens.</p>
-     * <p>When this is supported and ACAMERA_CONTROL_AE_MODE is OFF,
-     * this can be set along with ACAMERA_SENSOR_EXPOSURE_TIME,
-     * ACAMERA_SENSOR_SENSITIVITY, and ACAMERA_SENSOR_FRAME_DURATION
-     * to achieve manual exposure control.</p>
-     * <p>The requested aperture value may take several frames to reach the
-     * requested value; the camera device will report the current (intermediate)
-     * aperture size in capture result metadata while the aperture is changing.
-     * While the aperture is still changing, ACAMERA_LENS_STATE will be set to MOVING.</p>
-     * <p>When this is supported and ACAMERA_CONTROL_AE_MODE is one of
-     * the ON modes, this will be overridden by the camera device
-     * auto-exposure algorithm, the overridden values are then provided
-     * back to the user in the corresponding result.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_LENS_STATE
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_LENS_APERTURE =                                     // float
-            ACAMERA_LENS_START,
-    /**
-     * <p>The desired setting for the lens neutral density filter(s).</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control will not be supported on most camera devices.</p>
-     * <p>Lens filters are typically used to lower the amount of light the
-     * sensor is exposed to (measured in steps of EV). As used here, an EV
-     * step is the standard logarithmic representation, which are
-     * non-negative, and inversely proportional to the amount of light
-     * hitting the sensor.  For example, setting this to 0 would result
-     * in no reduction of the incoming light, and setting this to 2 would
-     * mean that the filter is set to reduce incoming light by two stops
-     * (allowing 1/4 of the prior amount of light to the sensor).</p>
-     * <p>It may take several frames before the lens filter density changes
-     * to the requested value. While the filter density is still changing,
-     * ACAMERA_LENS_STATE will be set to MOVING.</p>
-     *
-     * @see ACAMERA_LENS_STATE
-     */
-    ACAMERA_LENS_FILTER_DENSITY =                               // float
-            ACAMERA_LENS_START + 1,
-    /**
-     * <p>The desired lens focal length; used for optical zoom.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This setting controls the physical focal length of the camera
-     * device's lens. Changing the focal length changes the field of
-     * view of the camera device, and is usually used for optical zoom.</p>
-     * <p>Like ACAMERA_LENS_FOCUS_DISTANCE and ACAMERA_LENS_APERTURE, this
-     * setting won't be applied instantaneously, and it may take several
-     * frames before the lens can change to the requested focal length.
-     * While the focal length is still changing, ACAMERA_LENS_STATE will
-     * be set to MOVING.</p>
-     * <p>Optical zoom will not be supported on most devices.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_LENS_STATE
-     */
-    ACAMERA_LENS_FOCAL_LENGTH =                                 // float
-            ACAMERA_LENS_START + 2,
-    /**
-     * <p>Desired distance to plane of sharpest focus,
-     * measured from frontmost surface of the lens.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Should be zero for fixed-focus cameras</p>
-     */
-    ACAMERA_LENS_FOCUS_DISTANCE =                               // float
-            ACAMERA_LENS_START + 3,
-    /**
-     * <p>Sets whether the camera device uses optical image stabilization (OIS)
-     * when capturing images.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>OIS is used to compensate for motion blur due to small
-     * movements of the camera during capture. Unlike digital image
-     * stabilization (ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE), OIS
-     * makes use of mechanical elements to stabilize the camera
-     * sensor, and thus allows for longer exposure times before
-     * camera shake becomes apparent.</p>
-     * <p>Switching between different optical stabilization modes may take several
-     * frames to initialize, the camera device will report the current mode in
-     * capture result metadata. For example, When "ON" mode is requested, the
-     * optical stabilization modes in the first several capture results may still
-     * be "OFF", and it will become "ON" when the initialization is done.</p>
-     * <p>If a camera device supports both OIS and digital image stabilization
-     * (ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE), turning both modes on may produce undesirable
-     * interaction, so it is recommended not to enable both at the same time.</p>
-     * <p>Not all devices will support OIS; see
-     * ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION for
-     * available controls.</p>
-     *
-     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
-     * @see ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION
-     */
-    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE =                   // byte (enum)
-            ACAMERA_LENS_START + 4,
-    /**
-     * <p>Direction the camera faces relative to
-     * device screen.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_LENS_FACING =                                       // byte (enum)
-            ACAMERA_LENS_START + 5,
-    /**
-     * <p>The orientation of the camera relative to the sensor
-     * coordinate system.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The four coefficients that describe the quaternion
-     * rotation from the Android sensor coordinate system to a
-     * camera-aligned coordinate system where the X-axis is
-     * aligned with the long side of the image sensor, the Y-axis
-     * is aligned with the short side of the image sensor, and
-     * the Z-axis is aligned with the optical axis of the sensor.</p>
-     * <p>To convert from the quaternion coefficients <code>(x,y,z,w)</code>
-     * to the axis of rotation <code>(a_x, a_y, a_z)</code> and rotation
-     * amount <code>theta</code>, the following formulas can be used:</p>
-     * <pre><code> theta = 2 * acos(w)
-     * a_x = x / sin(theta/2)
-     * a_y = y / sin(theta/2)
-     * a_z = z / sin(theta/2)
-     * </code></pre>
-     * <p>To create a 3x3 rotation matrix that applies the rotation
-     * defined by this quaternion, the following matrix can be
-     * used:</p>
-     * <pre><code>R = [ 1 - 2y^2 - 2z^2,       2xy - 2zw,       2xz + 2yw,
-     *            2xy + 2zw, 1 - 2x^2 - 2z^2,       2yz - 2xw,
-     *            2xz - 2yw,       2yz + 2xw, 1 - 2x^2 - 2y^2 ]
-     * </code></pre>
-     * <p>This matrix can then be used to apply the rotation to a
-     *  column vector point with</p>
-     * <p><code>p' = Rp</code></p>
-     * <p>where <code>p</code> is in the device sensor coordinate system, and
-     *  <code>p'</code> is in the camera-oriented coordinate system.</p>
-     */
-    ACAMERA_LENS_POSE_ROTATION =                                // float[4]
-            ACAMERA_LENS_START + 6,
-    /**
-     * <p>Position of the camera optical center.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The position of the camera device's lens optical center,
-     * as a three-dimensional vector <code>(x,y,z)</code>, relative to the
-     * optical center of the largest camera device facing in the
-     * same direction as this camera, in the
-     * <a href="https://developer.android.com/reference/android/hardware/SensorEvent.html">Android sensor coordinate axes</a>.
-     * Note that only the axis definitions are shared with
-     * the sensor coordinate system, but not the origin.</p>
-     * <p>If this device is the largest or only camera device with a
-     * given facing, then this position will be <code>(0, 0, 0)</code>; a
-     * camera device with a lens optical center located 3 cm from
-     * the main sensor along the +X axis (to the right from the
-     * user's perspective) will report <code>(0.03, 0, 0)</code>.</p>
-     * <p>To transform a pixel coordinates between two cameras
-     * facing the same direction, first the source camera
-     * ACAMERA_LENS_RADIAL_DISTORTION must be corrected for.  Then
-     * the source camera ACAMERA_LENS_INTRINSIC_CALIBRATION needs
-     * to be applied, followed by the ACAMERA_LENS_POSE_ROTATION
-     * of the source camera, the translation of the source camera
-     * relative to the destination camera, the
-     * ACAMERA_LENS_POSE_ROTATION of the destination camera, and
-     * finally the inverse of ACAMERA_LENS_INTRINSIC_CALIBRATION
-     * of the destination camera. This obtains a
-     * radial-distortion-free coordinate in the destination
-     * camera pixel coordinates.</p>
-     * <p>To compare this against a real image from the destination
-     * camera, the destination camera image then needs to be
-     * corrected for radial distortion before comparison or
-     * sampling.</p>
-     *
-     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
-     * @see ACAMERA_LENS_POSE_ROTATION
-     * @see ACAMERA_LENS_RADIAL_DISTORTION
-     */
-    ACAMERA_LENS_POSE_TRANSLATION =                             // float[3]
-            ACAMERA_LENS_START + 7,
-    /**
-     * <p>The range of scene distances that are in
-     * sharp focus (depth of field).</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>If variable focus not supported, can still report
-     * fixed depth of field range</p>
-     */
-    ACAMERA_LENS_FOCUS_RANGE =                                  // float[2]
-            ACAMERA_LENS_START + 8,
-    /**
-     * <p>Current lens status.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>For lens parameters ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
-     * ACAMERA_LENS_FILTER_DENSITY and ACAMERA_LENS_APERTURE, when changes are requested,
-     * they may take several frames to reach the requested values. This state indicates
-     * the current status of the lens parameters.</p>
-     * <p>When the state is STATIONARY, the lens parameters are not changing. This could be
-     * either because the parameters are all fixed, or because the lens has had enough
-     * time to reach the most recently-requested values.
-     * If all these lens parameters are not changable for a camera device, as listed below:</p>
-     * <ul>
-     * <li>Fixed focus (<code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE == 0</code>), which means
-     * ACAMERA_LENS_FOCUS_DISTANCE parameter will always be 0.</li>
-     * <li>Fixed focal length (ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS contains single value),
-     * which means the optical zoom is not supported.</li>
-     * <li>No ND filter (ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES contains only 0).</li>
-     * <li>Fixed aperture (ACAMERA_LENS_INFO_AVAILABLE_APERTURES contains single value).</li>
-     * </ul>
-     * <p>Then this state will always be STATIONARY.</p>
-     * <p>When the state is MOVING, it indicates that at least one of the lens parameters
-     * is changing.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     * @see ACAMERA_LENS_FILTER_DENSITY
-     * @see ACAMERA_LENS_FOCAL_LENGTH
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_LENS_INFO_AVAILABLE_APERTURES
-     * @see ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES
-     * @see ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_LENS_STATE =                                        // byte (enum)
-            ACAMERA_LENS_START + 9,
-    /**
-     * <p>The parameters for this camera device's intrinsic
-     * calibration.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The five calibration parameters that describe the
-     * transform from camera-centric 3D coordinates to sensor
-     * pixel coordinates:</p>
-     * <pre><code>[f_x, f_y, c_x, c_y, s]
-     * </code></pre>
-     * <p>Where <code>f_x</code> and <code>f_y</code> are the horizontal and vertical
-     * focal lengths, <code>[c_x, c_y]</code> is the position of the optical
-     * axis, and <code>s</code> is a skew parameter for the sensor plane not
-     * being aligned with the lens plane.</p>
-     * <p>These are typically used within a transformation matrix K:</p>
-     * <pre><code>K = [ f_x,   s, c_x,
-     *        0, f_y, c_y,
-     *        0    0,   1 ]
-     * </code></pre>
-     * <p>which can then be combined with the camera pose rotation
-     * <code>R</code> and translation <code>t</code> (ACAMERA_LENS_POSE_ROTATION and
-     * ACAMERA_LENS_POSE_TRANSLATION, respective) to calculate the
-     * complete transform from world coordinates to pixel
-     * coordinates:</p>
-     * <pre><code>P = [ K 0   * [ R t
-     *      0 1 ]     0 1 ]
-     * </code></pre>
-     * <p>and with <code>p_w</code> being a point in the world coordinate system
-     * and <code>p_s</code> being a point in the camera active pixel array
-     * coordinate system, and with the mapping including the
-     * homogeneous division by z:</p>
-     * <pre><code> p_h = (x_h, y_h, z_h) = P p_w
-     * p_s = p_h / z_h
-     * </code></pre>
-     * <p>so <code>[x_s, y_s]</code> is the pixel coordinates of the world
-     * point, <code>z_s = 1</code>, and <code>w_s</code> is a measurement of disparity
-     * (depth) in pixel coordinates.</p>
-     * <p>Note that the coordinate system for this transform is the
-     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE system,
-     * where <code>(0,0)</code> is the top-left of the
-     * preCorrectionActiveArraySize rectangle. Once the pose and
-     * intrinsic calibration transforms have been applied to a
-     * world point, then the ACAMERA_LENS_RADIAL_DISTORTION
-     * transform needs to be applied, and the result adjusted to
-     * be in the ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE coordinate
-     * system (where <code>(0, 0)</code> is the top-left of the
-     * activeArraySize rectangle), to determine the final pixel
-     * coordinate of the world point for processed (non-RAW)
-     * output buffers.</p>
-     *
-     * @see ACAMERA_LENS_POSE_ROTATION
-     * @see ACAMERA_LENS_POSE_TRANSLATION
-     * @see ACAMERA_LENS_RADIAL_DISTORTION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_LENS_INTRINSIC_CALIBRATION =                        // float[5]
-            ACAMERA_LENS_START + 10,
-    /**
-     * <p>The correction coefficients to correct for this camera device's
-     * radial and tangential lens distortion.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Four radial distortion coefficients <code>[kappa_0, kappa_1, kappa_2,
-     * kappa_3]</code> and two tangential distortion coefficients
-     * <code>[kappa_4, kappa_5]</code> that can be used to correct the
-     * lens's geometric distortion with the mapping equations:</p>
-     * <pre><code> x_c = x_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) +
-     *        kappa_4 * (2 * x_i * y_i) + kappa_5 * ( r^2 + 2 * x_i^2 )
-     *  y_c = y_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) +
-     *        kappa_5 * (2 * x_i * y_i) + kappa_4 * ( r^2 + 2 * y_i^2 )
-     * </code></pre>
-     * <p>Here, <code>[x_c, y_c]</code> are the coordinates to sample in the
-     * input image that correspond to the pixel values in the
-     * corrected image at the coordinate <code>[x_i, y_i]</code>:</p>
-     * <pre><code> correctedImage(x_i, y_i) = sample_at(x_c, y_c, inputImage)
-     * </code></pre>
-     * <p>The pixel coordinates are defined in a normalized
-     * coordinate system related to the
-     * ACAMERA_LENS_INTRINSIC_CALIBRATION calibration fields.
-     * Both <code>[x_i, y_i]</code> and <code>[x_c, y_c]</code> have <code>(0,0)</code> at the
-     * lens optical center <code>[c_x, c_y]</code>. The maximum magnitudes
-     * of both x and y coordinates are normalized to be 1 at the
-     * edge further from the optical center, so the range
-     * for both dimensions is <code>-1 &lt;= x &lt;= 1</code>.</p>
-     * <p>Finally, <code>r</code> represents the radial distance from the
-     * optical center, <code>r^2 = x_i^2 + y_i^2</code>, and its magnitude
-     * is therefore no larger than <code>|r| &lt;= sqrt(2)</code>.</p>
-     * <p>The distortion model used is the Brown-Conrady model.</p>
-     *
-     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
-     */
-    ACAMERA_LENS_RADIAL_DISTORTION =                            // float[6]
-            ACAMERA_LENS_START + 11,
-    ACAMERA_LENS_END,
-
-    /**
-     * <p>List of aperture size values for ACAMERA_LENS_APERTURE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If the camera device doesn't support a variable lens aperture,
-     * this list will contain only one value, which is the fixed aperture size.</p>
-     * <p>If the camera device supports a variable aperture, the aperture values
-     * in this list will be sorted in ascending order.</p>
-     */
-    ACAMERA_LENS_INFO_AVAILABLE_APERTURES =                     // float[n]
-            ACAMERA_LENS_INFO_START,
-    /**
-     * <p>List of neutral density filter values for
-     * ACAMERA_LENS_FILTER_DENSITY that are supported by this camera device.</p>
-     *
-     * @see ACAMERA_LENS_FILTER_DENSITY
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If a neutral density filter is not supported by this camera device,
-     * this list will contain only 0. Otherwise, this list will include every
-     * filter density supported by the camera device, in ascending order.</p>
-     */
-    ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES =              // float[n]
-            ACAMERA_LENS_INFO_START + 1,
-    /**
-     * <p>List of focal lengths for ACAMERA_LENS_FOCAL_LENGTH that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_LENS_FOCAL_LENGTH
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If optical zoom is not supported, this list will only contain
-     * a single value corresponding to the fixed focal length of the
-     * device. Otherwise, this list will include every focal length supported
-     * by the camera device, in ascending order.</p>
-     */
-    ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS =                 // float[n]
-            ACAMERA_LENS_INFO_START + 2,
-    /**
-     * <p>List of optical image stabilization (OIS) modes for
-     * ACAMERA_LENS_OPTICAL_STABILIZATION_MODE that are supported by this camera device.</p>
-     *
-     * @see ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If OIS is not supported by a given camera device, this list will
-     * contain only OFF.</p>
-     */
-    ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION =         // byte[n]
-            ACAMERA_LENS_INFO_START + 3,
-    /**
-     * <p>Hyperfocal distance for this lens.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If the lens is not fixed focus, the camera device will report this
-     * field when ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION is APPROXIMATE or CALIBRATED.</p>
-     *
-     * @see ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
-     */
-    ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE =                     // float
-            ACAMERA_LENS_INFO_START + 4,
-    /**
-     * <p>Shortest distance from frontmost surface
-     * of the lens that can be brought into sharp focus.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If the lens is fixed-focus, this will be
-     * 0.</p>
-     */
-    ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE =                  // float
-            ACAMERA_LENS_INFO_START + 5,
-    /**
-     * <p>Dimensions of lens shading map.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The map should be on the order of 30-40 rows and columns, and
-     * must be smaller than 64x64.</p>
-     */
-    ACAMERA_LENS_INFO_SHADING_MAP_SIZE =                        // int32[2]
-            ACAMERA_LENS_INFO_START + 6,
-    /**
-     * <p>The lens focus distance calibration quality.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The lens focus distance calibration quality determines the reliability of
-     * focus related metadata entries, i.e. ACAMERA_LENS_FOCUS_DISTANCE,
-     * ACAMERA_LENS_FOCUS_RANGE, ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE, and
-     * ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE.</p>
-     * <p>APPROXIMATE and CALIBRATED devices report the focus metadata in
-     * units of diopters (1/meter), so <code>0.0f</code> represents focusing at infinity,
-     * and increasing positive numbers represent focusing closer and closer
-     * to the camera device. The focus distance control also uses diopters
-     * on these devices.</p>
-     * <p>UNCALIBRATED devices do not use units that are directly comparable
-     * to any real physical measurement, but <code>0.0f</code> still represents farthest
-     * focus, and ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE represents the
-     * nearest focus the device can achieve.</p>
-     *
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_LENS_FOCUS_RANGE
-     * @see ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION =              // byte (enum)
-            ACAMERA_LENS_INFO_START + 7,
-    ACAMERA_LENS_INFO_END,
-
-    /**
-     * <p>Mode of operation for the noise reduction algorithm.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The noise reduction algorithm attempts to improve image quality by removing
-     * excessive noise added by the capture process, especially in dark conditions.</p>
-     * <p>OFF means no noise reduction will be applied by the camera device, for both raw and
-     * YUV domain.</p>
-     * <p>MINIMAL means that only sensor raw domain basic noise reduction is enabled ,to remove
-     * demosaicing or other processing artifacts. For YUV_REPROCESSING, MINIMAL is same as OFF.
-     * This mode is optional, may not be support by all devices. The application should check
-     * ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES before using it.</p>
-     * <p>FAST/HIGH_QUALITY both mean camera device determined noise filtering
-     * will be applied. HIGH_QUALITY mode indicates that the camera device
-     * will use the highest-quality noise filtering algorithms,
-     * even if it slows down capture rate. FAST means the camera device will not
-     * slow down capture rate when applying noise filtering. FAST may be the same as MINIMAL if
-     * MINIMAL is listed, or the same as OFF if any noise filtering will slow down capture rate.
-     * Every output stream will have a similar amount of enhancement applied.</p>
-     * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular
-     * buffer of high-resolution images during preview and reprocess image(s) from that buffer
-     * into a final capture when triggered by the user. In this mode, the camera device applies
-     * noise reduction to low-resolution streams (below maximum recording resolution) to maximize
-     * preview quality, but does not apply noise reduction to high-resolution streams, since
-     * those will be reprocessed later if necessary.</p>
-     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera device
-     * will apply FAST/HIGH_QUALITY YUV domain noise reduction, respectively. The camera device
-     * may adjust the noise reduction parameters for best image quality based on the
-     * android.reprocess.effectiveExposureFactor if it is set.</p>
-     *
-     * @see ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES
-     */
-    ACAMERA_NOISE_REDUCTION_MODE =                              // byte (enum)
-            ACAMERA_NOISE_REDUCTION_START,
-    /**
-     * <p>List of noise reduction modes for ACAMERA_NOISE_REDUCTION_MODE that are supported
-     * by this camera device.</p>
-     *
-     * @see ACAMERA_NOISE_REDUCTION_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Full-capability camera devices will always support OFF and FAST.</p>
-     * <p>Camera devices that support YUV_REPROCESSING or PRIVATE_REPROCESSING will support
-     * ZERO_SHUTTER_LAG.</p>
-     * <p>Legacy-capability camera devices will only support FAST mode.</p>
-     */
-    ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES =   // byte[n]
-            ACAMERA_NOISE_REDUCTION_START + 2,
-    ACAMERA_NOISE_REDUCTION_END,
-
-    /**
-     * <p>The maximum numbers of different types of output streams
-     * that can be configured and used simultaneously by a camera device.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This is a 3 element tuple that contains the max number of output simultaneous
-     * streams for raw sensor, processed (but not stalling), and processed (and stalling)
-     * formats respectively. For example, assuming that JPEG is typically a processed and
-     * stalling stream, if max raw sensor format output stream number is 1, max YUV streams
-     * number is 3, and max JPEG stream number is 2, then this tuple should be <code>(1, 3, 2)</code>.</p>
-     * <p>This lists the upper bound of the number of output streams supported by
-     * the camera device. Using more streams simultaneously may require more hardware and
-     * CPU resources that will consume more power. The image format for an output stream can
-     * be any supported format provided by ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS.
-     * The formats defined in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS can be catergorized
-     * into the 3 stream types as below:</p>
-     * <ul>
-     * <li>Processed (but stalling): any non-RAW format with a stallDurations &gt; 0.
-     *   Typically {@link AIMAGE_FORMAT_JPEG} format.</li>
-     * <li>Raw formats: {@link AIMAGE_FORMAT_RAW16}, {@link AIMAGE_FORMAT_RAW10}, or
-     *   {@link AIMAGE_FORMAT_RAW12}.</li>
-     * <li>Processed (but not-stalling): any non-RAW format without a stall duration.
-     *   Typically {@link AIMAGE_FORMAT_YUV_420_888}.</li>
-     * </ul>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
-     */
-    ACAMERA_REQUEST_MAX_NUM_OUTPUT_STREAMS =                    // int32[3]
-            ACAMERA_REQUEST_START + 6,
-    /**
-     * <p>Specifies the number of pipeline stages the frame went
-     * through from when it was exposed to when the final completed result
-     * was available to the framework.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Depending on what settings are used in the request, and
-     * what streams are configured, the data may undergo less processing,
-     * and some pipeline stages skipped.</p>
-     * <p>See ACAMERA_REQUEST_PIPELINE_MAX_DEPTH for more details.</p>
-     *
-     * @see ACAMERA_REQUEST_PIPELINE_MAX_DEPTH
-     */
-    ACAMERA_REQUEST_PIPELINE_DEPTH =                            // byte
-            ACAMERA_REQUEST_START + 9,
-    /**
-     * <p>Specifies the number of maximum pipeline stages a frame
-     * has to go through from when it's exposed to when it's available
-     * to the framework.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>A typical minimum value for this is 2 (one stage to expose,
-     * one stage to readout) from the sensor. The ISP then usually adds
-     * its own stages to do custom HW processing. Further stages may be
-     * added by SW processing.</p>
-     * <p>Depending on what settings are used (e.g. YUV, JPEG) and what
-     * processing is enabled (e.g. face detection), the actual pipeline
-     * depth (specified by ACAMERA_REQUEST_PIPELINE_DEPTH) may be less than
-     * the max pipeline depth.</p>
-     * <p>A pipeline depth of X stages is equivalent to a pipeline latency of
-     * X frame intervals.</p>
-     * <p>This value will normally be 8 or less, however, for high speed capture session,
-     * the max pipeline depth will be up to 8 x size of high speed capture request list.</p>
-     *
-     * @see ACAMERA_REQUEST_PIPELINE_DEPTH
-     */
-    ACAMERA_REQUEST_PIPELINE_MAX_DEPTH =                        // byte
-            ACAMERA_REQUEST_START + 10,
-    /**
-     * <p>Defines how many sub-components
-     * a result will be composed of.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>In order to combat the pipeline latency, partial results
-     * may be delivered to the application layer from the camera device as
-     * soon as they are available.</p>
-     * <p>Optional; defaults to 1. A value of 1 means that partial
-     * results are not supported, and only the final TotalCaptureResult will
-     * be produced by the camera device.</p>
-     * <p>A typical use case for this might be: after requesting an
-     * auto-focus (AF) lock the new AF state might be available 50%
-     * of the way through the pipeline.  The camera device could
-     * then immediately dispatch this state via a partial result to
-     * the application, and the rest of the metadata via later
-     * partial results.</p>
-     */
-    ACAMERA_REQUEST_PARTIAL_RESULT_COUNT =                      // int32
-            ACAMERA_REQUEST_START + 11,
-    /**
-     * <p>List of capabilities that this camera device
-     * advertises as fully supporting.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>A capability is a contract that the camera device makes in order
-     * to be able to satisfy one or more use cases.</p>
-     * <p>Listing a capability guarantees that the whole set of features
-     * required to support a common use will all be available.</p>
-     * <p>Using a subset of the functionality provided by an unsupported
-     * capability may be possible on a specific camera device implementation;
-     * to do this query each of ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS,
-     * ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS,
-     * ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS.</p>
-     * <p>The following capabilities are guaranteed to be available on
-     * ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL <code>==</code> FULL devices:</p>
-     * <ul>
-     * <li>MANUAL_SENSOR</li>
-     * <li>MANUAL_POST_PROCESSING</li>
-     * </ul>
-     * <p>Other capabilities may be available on either FULL or LIMITED
-     * devices, but the application should query this key to be sure.</p>
-     *
-     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
-     * @see ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS
-     * @see ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS
-     * @see ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES =                    // byte[n] (enum)
-            ACAMERA_REQUEST_START + 12,
-    /**
-     * <p>A list of all keys that the camera device has available
-     * to use with {@link ACaptureRequest}.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Attempting to set a key into a CaptureRequest that is not
-     * listed here will result in an invalid request and will be rejected
-     * by the camera device.</p>
-     * <p>This field can be used to query the feature set of a camera device
-     * at a more granular level than capabilities. This is especially
-     * important for optional keys that are not listed under any capability
-     * in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS =                    // int32[n]
-            ACAMERA_REQUEST_START + 13,
-    /**
-     * <p>A list of all keys that the camera device has available
-     * to query with {@link ACameraMetadata} from
-     * {@link ACameraCaptureSession_captureCallback_result}.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Attempting to get a key from a CaptureResult that is not
-     * listed here will always return a <code>null</code> value. Getting a key from
-     * a CaptureResult that is listed here will generally never return a <code>null</code>
-     * value.</p>
-     * <p>The following keys may return <code>null</code> unless they are enabled:</p>
-     * <ul>
-     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP (non-null iff ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE == ON)</li>
-     * </ul>
-     * <p>(Those sometimes-null keys will nevertheless be listed here
-     * if they are available.)</p>
-     * <p>This field can be used to query the feature set of a camera device
-     * at a more granular level than capabilities. This is especially
-     * important for optional keys that are not listed under any capability
-     * in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
-     */
-    ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS =                     // int32[n]
-            ACAMERA_REQUEST_START + 14,
-    /**
-     * <p>A list of all keys that the camera device has available
-     * to query with {@link ACameraMetadata} from
-     * {@link ACameraManager_getCameraCharacteristics}.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This entry follows the same rules as
-     * ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS (except that it applies for
-     * CameraCharacteristics instead of CaptureResult). See above for more
-     * details.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS
-     */
-    ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS =            // int32[n]
-            ACAMERA_REQUEST_START + 15,
-    ACAMERA_REQUEST_END,
-
-    /**
-     * <p>The desired region of the sensor to read out for this capture.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control can be used to implement digital zoom.</p>
-     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
-     * <p>The crop region coordinate system is based off
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with <code>(0, 0)</code> being the
-     * top-left corner of the sensor active array.</p>
-     * <p>Output streams use this rectangle to produce their output,
-     * cropping to a smaller region if necessary to maintain the
-     * stream's aspect ratio, then scaling the sensor input to
-     * match the output's configured resolution.</p>
-     * <p>The crop region is applied after the RAW to other color
-     * space (e.g. YUV) conversion. Since raw streams
-     * (e.g. RAW16) don't have the conversion stage, they are not
-     * croppable. The crop region will be ignored by raw streams.</p>
-     * <p>For non-raw streams, any additional per-stream cropping will
-     * be done to maximize the final pixel area of the stream.</p>
-     * <p>For example, if the crop region is set to a 4:3 aspect
-     * ratio, then 4:3 streams will use the exact crop
-     * region. 16:9 streams will further crop vertically
-     * (letterbox).</p>
-     * <p>Conversely, if the crop region is set to a 16:9, then 4:3
-     * outputs will crop horizontally (pillarbox), and 16:9
-     * streams will match exactly. These additional crops will
-     * be centered within the crop region.</p>
-     * <p>The width and height of the crop region cannot
-     * be set to be smaller than
-     * <code>floor( activeArraySize.width / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code> and
-     * <code>floor( activeArraySize.height / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code>, respectively.</p>
-     * <p>The camera device may adjust the crop region to account
-     * for rounding and other hardware requirements; the final
-     * crop region used will be included in the output capture
-     * result.</p>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SCALER_CROP_REGION =                                // int32[4]
-            ACAMERA_SCALER_START,
-    /**
-     * <p>The maximum ratio between both active area width
-     * and crop region width, and active area height and
-     * crop region height, for ACAMERA_SCALER_CROP_REGION.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This represents the maximum amount of zooming possible by
-     * the camera device, or equivalently, the minimum cropping
-     * window size.</p>
-     * <p>Crop regions that have a width or height that is smaller
-     * than this ratio allows will be rounded up to the minimum
-     * allowed size by the camera device.</p>
-     */
-    ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM =                 // float
-            ACAMERA_SCALER_START + 4,
-    /**
-     * <p>The available stream configurations that this
-     * camera device supports
-     * (i.e. format, width, height, output/input stream).</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The configurations are listed as <code>(format, width, height, input?)</code>
-     * tuples.</p>
-     * <p>For a given use case, the actual maximum supported resolution
-     * may be lower than what is listed here, depending on the destination
-     * Surface for the image data. For example, for recording video,
-     * the video encoder chosen may have a maximum size limit (e.g. 1080p)
-     * smaller than what the camera (e.g. maximum resolution is 3264x2448)
-     * can provide.</p>
-     * <p>Please reference the documentation for the image data destination to
-     * check if it limits the maximum size for image data.</p>
-     * <p>Not all output formats may be supported in a configuration with
-     * an input stream of a particular format. For more details, see
-     * android.scaler.availableInputOutputFormatsMap.</p>
-     * <p>The following table describes the minimum required output stream
-     * configurations based on the hardware level
-     * (ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL):</p>
-     * <p>Format         | Size                                         | Hardware Level | Notes
-     * :-------------:|:--------------------------------------------:|:--------------:|:--------------:
-     * JPEG           | ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE          | Any            |
-     * JPEG           | 1920x1080 (1080p)                            | Any            | if 1080p &lt;= activeArraySize
-     * JPEG           | 1280x720 (720)                               | Any            | if 720p &lt;= activeArraySize
-     * JPEG           | 640x480 (480p)                               | Any            | if 480p &lt;= activeArraySize
-     * JPEG           | 320x240 (240p)                               | Any            | if 240p &lt;= activeArraySize
-     * YUV_420_888    | all output sizes available for JPEG          | FULL           |
-     * YUV_420_888    | all output sizes available for JPEG, up to the maximum video size | LIMITED        |
-     * IMPLEMENTATION_DEFINED | same as YUV_420_888                  | Any            |</p>
-     * <p>Refer to ACAMERA_REQUEST_AVAILABLE_CAPABILITIES for additional
-     * mandatory stream configurations on a per-capability basis.</p>
-     *
-     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS =            // int32[n*4] (enum)
-            ACAMERA_SCALER_START + 10,
-    /**
-     * <p>This lists the minimum frame duration for each
-     * format/size combination.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This should correspond to the frame duration when only that
-     * stream is active, with all processing (typically in android.*.mode)
-     * set to either OFF or FAST.</p>
-     * <p>When multiple streams are used in a request, the minimum frame
-     * duration will be max(individual stream min durations).</p>
-     * <p>The minimum frame duration of a stream (of a particular format, size)
-     * is the same regardless of whether the stream is input or output.</p>
-     * <p>See ACAMERA_SENSOR_FRAME_DURATION and
-     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for more details about
-     * calculating the max frame rate.</p>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     */
-    ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS =              // int64[4*n]
-            ACAMERA_SCALER_START + 11,
-    /**
-     * <p>This lists the maximum stall duration for each
-     * output format/size combination.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>A stall duration is how much extra time would get added
-     * to the normal minimum frame duration for a repeating request
-     * that has streams with non-zero stall.</p>
-     * <p>For example, consider JPEG captures which have the following
-     * characteristics:</p>
-     * <ul>
-     * <li>JPEG streams act like processed YUV streams in requests for which
-     * they are not included; in requests in which they are directly
-     * referenced, they act as JPEG streams. This is because supporting a
-     * JPEG stream requires the underlying YUV data to always be ready for
-     * use by a JPEG encoder, but the encoder will only be used (and impact
-     * frame duration) on requests that actually reference a JPEG stream.</li>
-     * <li>The JPEG processor can run concurrently to the rest of the camera
-     * pipeline, but cannot process more than 1 capture at a time.</li>
-     * </ul>
-     * <p>In other words, using a repeating YUV request would result
-     * in a steady frame rate (let's say it's 30 FPS). If a single
-     * JPEG request is submitted periodically, the frame rate will stay
-     * at 30 FPS (as long as we wait for the previous JPEG to return each
-     * time). If we try to submit a repeating YUV + JPEG request, then
-     * the frame rate will drop from 30 FPS.</p>
-     * <p>In general, submitting a new request with a non-0 stall time
-     * stream will <em>not</em> cause a frame rate drop unless there are still
-     * outstanding buffers for that stream from previous requests.</p>
-     * <p>Submitting a repeating request with streams (call this <code>S</code>)
-     * is the same as setting the minimum frame duration from
-     * the normal minimum frame duration corresponding to <code>S</code>, added with
-     * the maximum stall duration for <code>S</code>.</p>
-     * <p>If interleaving requests with and without a stall duration,
-     * a request will stall by the maximum of the remaining times
-     * for each can-stall stream with outstanding buffers.</p>
-     * <p>This means that a stalling request will not have an exposure start
-     * until the stall has completed.</p>
-     * <p>This should correspond to the stall duration when only that stream is
-     * active, with all processing (typically in android.*.mode) set to FAST
-     * or OFF. Setting any of the processing modes to HIGH_QUALITY
-     * effectively results in an indeterminate stall duration for all
-     * streams in a request (the regular stall calculation rules are
-     * ignored).</p>
-     * <p>The following formats may always have a stall duration:</p>
-     * <ul>
-     * <li>{@link AIMAGE_FORMAT_JPEG}</li>
-     * <li>{@link AIMAGE_FORMAT_RAW16}</li>
-     * </ul>
-     * <p>The following formats will never have a stall duration:</p>
-     * <ul>
-     * <li>{@link AIMAGE_FORMAT_YUV_420_888}</li>
-     * <li>{@link AIMAGE_FORMAT_RAW10}</li>
-     * </ul>
-     * <p>All other formats may or may not have an allowed stall duration on
-     * a per-capability basis; refer to ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * for more details.</p>
-     * <p>See ACAMERA_SENSOR_FRAME_DURATION for more information about
-     * calculating the max frame rate (absent stalls).</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     */
-    ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS =                  // int64[4*n]
-            ACAMERA_SCALER_START + 12,
-    /**
-     * <p>The crop type that this camera device supports.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>When passing a non-centered crop region (ACAMERA_SCALER_CROP_REGION) to a camera
-     * device that only supports CENTER_ONLY cropping, the camera device will move the
-     * crop region to the center of the sensor active array (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE)
-     * and keep the crop region width and height unchanged. The camera device will return the
-     * final used crop region in metadata result ACAMERA_SCALER_CROP_REGION.</p>
-     * <p>Camera devices that support FREEFORM cropping will support any crop region that
-     * is inside of the active array. The camera device will apply the same crop region and
-     * return the final used crop region in capture result metadata ACAMERA_SCALER_CROP_REGION.</p>
-     * <p>LEGACY capability devices will only support CENTER_ONLY cropping.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SCALER_CROPPING_TYPE =                              // byte (enum)
-            ACAMERA_SCALER_START + 13,
-    ACAMERA_SCALER_END,
-
-    /**
-     * <p>Duration each pixel is exposed to
-     * light.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>If the sensor can't expose this exact duration, it will shorten the
-     * duration exposed to the nearest possible value (rather than expose longer).
-     * The final exposure time used will be available in the output capture result.</p>
-     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
-     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_SENSOR_EXPOSURE_TIME =                              // int64
-            ACAMERA_SENSOR_START,
-    /**
-     * <p>Duration from start of frame exposure to
-     * start of next frame exposure.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The maximum frame rate that can be supported by a camera subsystem is
-     * a function of many factors:</p>
-     * <ul>
-     * <li>Requested resolutions of output image streams</li>
-     * <li>Availability of binning / skipping modes on the imager</li>
-     * <li>The bandwidth of the imager interface</li>
-     * <li>The bandwidth of the various ISP processing blocks</li>
-     * </ul>
-     * <p>Since these factors can vary greatly between different ISPs and
-     * sensors, the camera abstraction tries to represent the bandwidth
-     * restrictions with as simple a model as possible.</p>
-     * <p>The model presented has the following characteristics:</p>
-     * <ul>
-     * <li>The image sensor is always configured to output the smallest
-     * resolution possible given the application's requested output stream
-     * sizes.  The smallest resolution is defined as being at least as large
-     * as the largest requested output stream size; the camera pipeline must
-     * never digitally upsample sensor data when the crop region covers the
-     * whole sensor. In general, this means that if only small output stream
-     * resolutions are configured, the sensor can provide a higher frame
-     * rate.</li>
-     * <li>Since any request may use any or all the currently configured
-     * output streams, the sensor and ISP must be configured to support
-     * scaling a single capture to all the streams at the same time.  This
-     * means the camera pipeline must be ready to produce the largest
-     * requested output size without any delay.  Therefore, the overall
-     * frame rate of a given configured stream set is governed only by the
-     * largest requested stream resolution.</li>
-     * <li>Using more than one output stream in a request does not affect the
-     * frame duration.</li>
-     * <li>Certain format-streams may need to do additional background processing
-     * before data is consumed/produced by that stream. These processors
-     * can run concurrently to the rest of the camera pipeline, but
-     * cannot process more than 1 capture at a time.</li>
-     * </ul>
-     * <p>The necessary information for the application, given the model above,
-     * is provided via
-     * {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}.
-     * These are used to determine the maximum frame rate / minimum frame
-     * duration that is possible for a given stream configuration.</p>
-     * <p>Specifically, the application can use the following rules to
-     * determine the minimum frame duration it can request from the camera
-     * device:</p>
-     * <ol>
-     * <li>Let the set of currently configured input/output streams
-     * be called <code>S</code>.</li>
-     * <li>Find the minimum frame durations for each stream in <code>S</code>, by looking
-     * it up in {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}
-     * (with its respective size/format). Let this set of frame durations be
-     * called <code>F</code>.</li>
-     * <li>For any given request <code>R</code>, the minimum frame duration allowed
-     * for <code>R</code> is the maximum out of all values in <code>F</code>. Let the streams
-     * used in <code>R</code> be called <code>S_r</code>.</li>
-     * </ol>
-     * <p>If none of the streams in <code>S_r</code> have a stall time (listed in {@link
-     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS}
-     * using its respective size/format), then the frame duration in <code>F</code>
-     * determines the steady state frame rate that the application will get
-     * if it uses <code>R</code> as a repeating request. Let this special kind of
-     * request be called <code>Rsimple</code>.</p>
-     * <p>A repeating request <code>Rsimple</code> can be <em>occasionally</em> interleaved
-     * by a single capture of a new request <code>Rstall</code> (which has at least
-     * one in-use stream with a non-0 stall time) and if <code>Rstall</code> has the
-     * same minimum frame duration this will not cause a frame rate loss
-     * if all buffers from the previous <code>Rstall</code> have already been
-     * delivered.</p>
-     * <p>For more details about stalling, see
-     * {@link ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS}.</p>
-     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
-     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_SENSOR_FRAME_DURATION =                             // int64
-            ACAMERA_SENSOR_START + 1,
-    /**
-     * <p>The amount of gain applied to sensor data
-     * before processing.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The sensitivity is the standard ISO sensitivity value,
-     * as defined in ISO 12232:2006.</p>
-     * <p>The sensitivity must be within ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE, and
-     * if if it less than ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY, the camera device
-     * is guaranteed to use only analog amplification for applying the gain.</p>
-     * <p>If the camera device cannot apply the exact sensitivity
-     * requested, it will reduce the gain to the nearest supported
-     * value. The final sensitivity used will be available in the
-     * output capture result.</p>
-     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
-     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE
-     * @see ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY
-     */
-    ACAMERA_SENSOR_SENSITIVITY =                                // int32
-            ACAMERA_SENSOR_START + 2,
-    /**
-     * <p>The standard reference illuminant used as the scene light source when
-     * calculating the ACAMERA_SENSOR_COLOR_TRANSFORM1,
-     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM1, and
-     * ACAMERA_SENSOR_FORWARD_MATRIX1 matrices.</p>
-     *
-     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM1
-     * @see ACAMERA_SENSOR_COLOR_TRANSFORM1
-     * @see ACAMERA_SENSOR_FORWARD_MATRIX1
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The values in this key correspond to the values defined for the
-     * EXIF LightSource tag. These illuminants are standard light sources
-     * that are often used calibrating camera devices.</p>
-     * <p>If this key is present, then ACAMERA_SENSOR_COLOR_TRANSFORM1,
-     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM1, and
-     * ACAMERA_SENSOR_FORWARD_MATRIX1 will also be present.</p>
-     * <p>Some devices may choose to provide a second set of calibration
-     * information for improved quality, including
-     * ACAMERA_SENSOR_REFERENCE_ILLUMINANT2 and its corresponding matrices.</p>
-     *
-     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM1
-     * @see ACAMERA_SENSOR_COLOR_TRANSFORM1
-     * @see ACAMERA_SENSOR_FORWARD_MATRIX1
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1 =                      // byte (enum)
-            ACAMERA_SENSOR_START + 3,
-    /**
-     * <p>The standard reference illuminant used as the scene light source when
-     * calculating the ACAMERA_SENSOR_COLOR_TRANSFORM2,
-     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM2, and
-     * ACAMERA_SENSOR_FORWARD_MATRIX2 matrices.</p>
-     *
-     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM2
-     * @see ACAMERA_SENSOR_COLOR_TRANSFORM2
-     * @see ACAMERA_SENSOR_FORWARD_MATRIX2
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>See ACAMERA_SENSOR_REFERENCE_ILLUMINANT1 for more details.</p>
-     * <p>If this key is present, then ACAMERA_SENSOR_COLOR_TRANSFORM2,
-     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM2, and
-     * ACAMERA_SENSOR_FORWARD_MATRIX2 will also be present.</p>
-     *
-     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM2
-     * @see ACAMERA_SENSOR_COLOR_TRANSFORM2
-     * @see ACAMERA_SENSOR_FORWARD_MATRIX2
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT2 =                      // byte
-            ACAMERA_SENSOR_START + 4,
-    /**
-     * <p>A per-device calibration transform matrix that maps from the
-     * reference sensor colorspace to the actual device sensor colorspace.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to correct for per-device variations in the
-     * sensor colorspace, and is used for processing raw buffer data.</p>
-     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
-     * contains a per-device calibration transform that maps colors
-     * from reference sensor color space (i.e. the "golden module"
-     * colorspace) into this camera device's native sensor color
-     * space under the first reference illuminant
-     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1).</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
-     */
-    ACAMERA_SENSOR_CALIBRATION_TRANSFORM1 =                     // rational[3*3]
-            ACAMERA_SENSOR_START + 5,
-    /**
-     * <p>A per-device calibration transform matrix that maps from the
-     * reference sensor colorspace to the actual device sensor colorspace
-     * (this is the colorspace of the raw buffer data).</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to correct for per-device variations in the
-     * sensor colorspace, and is used for processing raw buffer data.</p>
-     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
-     * contains a per-device calibration transform that maps colors
-     * from reference sensor color space (i.e. the "golden module"
-     * colorspace) into this camera device's native sensor color
-     * space under the second reference illuminant
-     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2).</p>
-     * <p>This matrix will only be present if the second reference
-     * illuminant is present.</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
-     */
-    ACAMERA_SENSOR_CALIBRATION_TRANSFORM2 =                     // rational[3*3]
-            ACAMERA_SENSOR_START + 6,
-    /**
-     * <p>A matrix that transforms color values from CIE XYZ color space to
-     * reference sensor color space.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to convert from the standard CIE XYZ color
-     * space to the reference sensor colorspace, and is used when processing
-     * raw buffer data.</p>
-     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
-     * contains a color transform matrix that maps colors from the CIE
-     * XYZ color space to the reference sensor color space (i.e. the
-     * "golden module" colorspace) under the first reference illuminant
-     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1).</p>
-     * <p>The white points chosen in both the reference sensor color space
-     * and the CIE XYZ colorspace when calculating this transform will
-     * match the standard white point for the first reference illuminant
-     * (i.e. no chromatic adaptation will be applied by this transform).</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
-     */
-    ACAMERA_SENSOR_COLOR_TRANSFORM1 =                           // rational[3*3]
-            ACAMERA_SENSOR_START + 7,
-    /**
-     * <p>A matrix that transforms color values from CIE XYZ color space to
-     * reference sensor color space.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to convert from the standard CIE XYZ color
-     * space to the reference sensor colorspace, and is used when processing
-     * raw buffer data.</p>
-     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
-     * contains a color transform matrix that maps colors from the CIE
-     * XYZ color space to the reference sensor color space (i.e. the
-     * "golden module" colorspace) under the second reference illuminant
-     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2).</p>
-     * <p>The white points chosen in both the reference sensor color space
-     * and the CIE XYZ colorspace when calculating this transform will
-     * match the standard white point for the second reference illuminant
-     * (i.e. no chromatic adaptation will be applied by this transform).</p>
-     * <p>This matrix will only be present if the second reference
-     * illuminant is present.</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
-     */
-    ACAMERA_SENSOR_COLOR_TRANSFORM2 =                           // rational[3*3]
-            ACAMERA_SENSOR_START + 8,
-    /**
-     * <p>A matrix that transforms white balanced camera colors from the reference
-     * sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to convert to the standard CIE XYZ colorspace, and
-     * is used when processing raw buffer data.</p>
-     * <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains
-     * a color transform matrix that maps white balanced colors from the
-     * reference sensor color space to the CIE XYZ color space with a D50 white
-     * point.</p>
-     * <p>Under the first reference illuminant (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1)
-     * this matrix is chosen so that the standard white point for this reference
-     * illuminant in the reference sensor colorspace is mapped to D50 in the
-     * CIE XYZ colorspace.</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
-     */
-    ACAMERA_SENSOR_FORWARD_MATRIX1 =                            // rational[3*3]
-            ACAMERA_SENSOR_START + 9,
-    /**
-     * <p>A matrix that transforms white balanced camera colors from the reference
-     * sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to convert to the standard CIE XYZ colorspace, and
-     * is used when processing raw buffer data.</p>
-     * <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains
-     * a color transform matrix that maps white balanced colors from the
-     * reference sensor color space to the CIE XYZ color space with a D50 white
-     * point.</p>
-     * <p>Under the second reference illuminant (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2)
-     * this matrix is chosen so that the standard white point for this reference
-     * illuminant in the reference sensor colorspace is mapped to D50 in the
-     * CIE XYZ colorspace.</p>
-     * <p>This matrix will only be present if the second reference
-     * illuminant is present.</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
-     */
-    ACAMERA_SENSOR_FORWARD_MATRIX2 =                            // rational[3*3]
-            ACAMERA_SENSOR_START + 10,
-    /**
-     * <p>A fixed black level offset for each of the color filter arrangement
-     * (CFA) mosaic channels.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This key specifies the zero light value for each of the CFA mosaic
-     * channels in the camera sensor.  The maximal value output by the
-     * sensor is represented by the value in ACAMERA_SENSOR_INFO_WHITE_LEVEL.</p>
-     * <p>The values are given in the same order as channels listed for the CFA
-     * layout key (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT), i.e. the
-     * nth value given corresponds to the black level offset for the nth
-     * color channel listed in the CFA.</p>
-     * <p>The black level values of captured images may vary for different
-     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY). This key
-     * represents a coarse approximation for such case. It is recommended to
-     * use ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL or use pixels from
-     * ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS directly for captures when
-     * supported by the camera device, which provides more accurate black
-     * level values. For raw capture in particular, it is recommended to use
-     * pixels from ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS to calculate black
-     * level values for each frame.</p>
-     *
-     * @see ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL
-     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
-     * @see ACAMERA_SENSOR_INFO_WHITE_LEVEL
-     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_SENSOR_BLACK_LEVEL_PATTERN =                        // int32[4]
-            ACAMERA_SENSOR_START + 12,
-    /**
-     * <p>Maximum sensitivity that is implemented
-     * purely through analog gain.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>For ACAMERA_SENSOR_SENSITIVITY values less than or
-     * equal to this, all applied gain must be analog. For
-     * values above this, the gain applied can be a mix of analog and
-     * digital.</p>
-     *
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY =                     // int32
-            ACAMERA_SENSOR_START + 13,
-    /**
-     * <p>Clockwise angle through which the output image needs to be rotated to be
-     * upright on the device screen in its native orientation.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Also defines the direction of rolling shutter readout, which is from top to bottom in
-     * the sensor's coordinate system.</p>
-     */
-    ACAMERA_SENSOR_ORIENTATION =                                // int32
-            ACAMERA_SENSOR_START + 14,
-    /**
-     * <p>Time at start of exposure of first
-     * row of the image sensor active array, in nanoseconds.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The timestamps are also included in all image
-     * buffers produced for the same capture, and will be identical
-     * on all the outputs.</p>
-     * <p>When ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> UNKNOWN,
-     * the timestamps measure time since an unspecified starting point,
-     * and are monotonically increasing. They can be compared with the
-     * timestamps for other captures from the same camera device, but are
-     * not guaranteed to be comparable to any other time source.</p>
-     * <p>When ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> REALTIME, the
-     * timestamps measure time in the same timebase as
-     * <a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtimeNanos">elapsedRealtimeNanos</a>
-     * (or CLOCK_BOOTTIME), and they can
-     * be compared to other timestamps from other subsystems that
-     * are using that base.</p>
-     * <p>For reprocessing, the timestamp will match the start of exposure of
-     * the input image, i.e. {@link CaptureResult#SENSOR_TIMESTAMP the
-     * timestamp} in the TotalCaptureResult that was used to create the
-     * reprocess capture request.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
-     */
-    ACAMERA_SENSOR_TIMESTAMP =                                  // int64
-            ACAMERA_SENSOR_START + 16,
-    /**
-     * <p>The estimated camera neutral color in the native sensor colorspace at
-     * the time of capture.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>This value gives the neutral color point encoded as an RGB value in the
-     * native sensor color space.  The neutral color point indicates the
-     * currently estimated white point of the scene illumination.  It can be
-     * used to interpolate between the provided color transforms when
-     * processing raw sensor data.</p>
-     * <p>The order of the values is R, G, B; where R is in the lowest index.</p>
-     */
-    ACAMERA_SENSOR_NEUTRAL_COLOR_POINT =                        // rational[3]
-            ACAMERA_SENSOR_START + 18,
-    /**
-     * <p>Noise model coefficients for each CFA mosaic channel.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>This key contains two noise model coefficients for each CFA channel
-     * corresponding to the sensor amplification (S) and sensor readout
-     * noise (O).  These are given as pairs of coefficients for each channel
-     * in the same order as channels listed for the CFA layout key
-     * (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT).  This is
-     * represented as an array of Pair&lt;Double, Double&gt;, where
-     * the first member of the Pair at index n is the S coefficient and the
-     * second member is the O coefficient for the nth color channel in the CFA.</p>
-     * <p>These coefficients are used in a two parameter noise model to describe
-     * the amount of noise present in the image for each CFA channel.  The
-     * noise model used here is:</p>
-     * <p>N(x) = sqrt(Sx + O)</p>
-     * <p>Where x represents the recorded signal of a CFA channel normalized to
-     * the range [0, 1], and S and O are the noise model coeffiecients for
-     * that channel.</p>
-     * <p>A more detailed description of the noise model can be found in the
-     * Adobe DNG specification for the NoiseProfile tag.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
-     */
-    ACAMERA_SENSOR_NOISE_PROFILE =                              // double[2*CFA Channels]
-            ACAMERA_SENSOR_START + 19,
-    /**
-     * <p>The worst-case divergence between Bayer green channels.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>This value is an estimate of the worst case split between the
-     * Bayer green channels in the red and blue rows in the sensor color
-     * filter array.</p>
-     * <p>The green split is calculated as follows:</p>
-     * <ol>
-     * <li>A 5x5 pixel (or larger) window W within the active sensor array is
-     * chosen. The term 'pixel' here is taken to mean a group of 4 Bayer
-     * mosaic channels (R, Gr, Gb, B).  The location and size of the window
-     * chosen is implementation defined, and should be chosen to provide a
-     * green split estimate that is both representative of the entire image
-     * for this camera sensor, and can be calculated quickly.</li>
-     * <li>The arithmetic mean of the green channels from the red
-     * rows (mean_Gr) within W is computed.</li>
-     * <li>The arithmetic mean of the green channels from the blue
-     * rows (mean_Gb) within W is computed.</li>
-     * <li>The maximum ratio R of the two means is computed as follows:
-     * <code>R = max((mean_Gr + 1)/(mean_Gb + 1), (mean_Gb + 1)/(mean_Gr + 1))</code></li>
-     * </ol>
-     * <p>The ratio R is the green split divergence reported for this property,
-     * which represents how much the green channels differ in the mosaic
-     * pattern.  This value is typically used to determine the treatment of
-     * the green mosaic channels when demosaicing.</p>
-     * <p>The green split value can be roughly interpreted as follows:</p>
-     * <ul>
-     * <li>R &lt; 1.03 is a negligible split (&lt;3% divergence).</li>
-     * <li>1.20 &lt;= R &gt;= 1.03 will require some software
-     * correction to avoid demosaic errors (3-20% divergence).</li>
-     * <li>R &gt; 1.20 will require strong software correction to produce
-     * a usuable image (&gt;20% divergence).</li>
-     * </ul>
-     */
-    ACAMERA_SENSOR_GREEN_SPLIT =                                // float
-            ACAMERA_SENSOR_START + 22,
-    /**
-     * <p>A pixel <code>[R, G_even, G_odd, B]</code> that supplies the test pattern
-     * when ACAMERA_SENSOR_TEST_PATTERN_MODE is SOLID_COLOR.</p>
-     *
-     * @see ACAMERA_SENSOR_TEST_PATTERN_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Each color channel is treated as an unsigned 32-bit integer.
-     * The camera device then uses the most significant X bits
-     * that correspond to how many bits are in its Bayer raw sensor
-     * output.</p>
-     * <p>For example, a sensor with RAW10 Bayer output would use the
-     * 10 most significant bits from each color channel.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_DATA =                          // int32[4]
-            ACAMERA_SENSOR_START + 23,
-    /**
-     * <p>When enabled, the sensor sends a test pattern instead of
-     * doing a real exposure from the camera.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When a test pattern is enabled, all manual sensor controls specified
-     * by ACAMERA_SENSOR_* will be ignored. All other controls should
-     * work as normal.</p>
-     * <p>For example, if manual flash is enabled, flash firing should still
-     * occur (and that the test pattern remain unmodified, since the flash
-     * would not actually affect it).</p>
-     * <p>Defaults to OFF.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE =                          // int32 (enum)
-            ACAMERA_SENSOR_START + 24,
-    /**
-     * <p>List of sensor test pattern modes for ACAMERA_SENSOR_TEST_PATTERN_MODE
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_SENSOR_TEST_PATTERN_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Defaults to OFF, and always includes OFF if defined.</p>
-     */
-    ACAMERA_SENSOR_AVAILABLE_TEST_PATTERN_MODES =               // int32[n]
-            ACAMERA_SENSOR_START + 25,
-    /**
-     * <p>Duration between the start of first row exposure
-     * and the start of last row exposure.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>This is the exposure time skew between the first and last
-     * row exposure start times. The first row and the last row are
-     * the first and last rows inside of the
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
-     * <p>For typical camera sensors that use rolling shutters, this is also equivalent
-     * to the frame readout time.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SENSOR_ROLLING_SHUTTER_SKEW =                       // int64
-            ACAMERA_SENSOR_START + 26,
-    /**
-     * <p>List of disjoint rectangles indicating the sensor
-     * optically shielded black pixel regions.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>In most camera sensors, the active array is surrounded by some
-     * optically shielded pixel areas. By blocking light, these pixels
-     * provides a reliable black reference for black level compensation
-     * in active array region.</p>
-     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
-     * <p>This key provides a list of disjoint rectangles specifying the
-     * regions of optically shielded (with metal shield) black pixel
-     * regions if the camera device is capable of reading out these black
-     * pixels in the output raw images. In comparison to the fixed black
-     * level values reported by ACAMERA_SENSOR_BLACK_LEVEL_PATTERN, this key
-     * may provide a more accurate way for the application to calculate
-     * black level of each captured raw images.</p>
-     * <p>When this key is reported, the ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL and
-     * ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL will also be reported.</p>
-     *
-     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
-     * @see ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL
-     * @see ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL
-     */
-    ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS =                      // int32[4*num_regions]
-            ACAMERA_SENSOR_START + 27,
-    /**
-     * <p>A per-frame dynamic black level offset for each of the color filter
-     * arrangement (CFA) mosaic channels.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Camera sensor black levels may vary dramatically for different
-     * capture settings (e.g. ACAMERA_SENSOR_SENSITIVITY). The fixed black
-     * level reported by ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may be too
-     * inaccurate to represent the actual value on a per-frame basis. The
-     * camera device internal pipeline relies on reliable black level values
-     * to process the raw images appropriately. To get the best image
-     * quality, the camera device may choose to estimate the per frame black
-     * level values either based on optically shielded black regions
-     * (ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS) or its internal model.</p>
-     * <p>This key reports the camera device estimated per-frame zero light
-     * value for each of the CFA mosaic channels in the camera sensor. The
-     * ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may only represent a coarse
-     * approximation of the actual black level values. This value is the
-     * black level used in camera device internal image processing pipeline
-     * and generally more accurate than the fixed black level values.
-     * However, since they are estimated values by the camera device, they
-     * may not be as accurate as the black level values calculated from the
-     * optical black pixels reported by ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS.</p>
-     * <p>The values are given in the same order as channels listed for the CFA
-     * layout key (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT), i.e. the
-     * nth value given corresponds to the black level offset for the nth
-     * color channel listed in the CFA.</p>
-     * <p>This key will be available if ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS is
-     * available or the camera device advertises this key via
-     * {@link ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS}.</p>
-     *
-     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
-     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
-     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL =                        // float[4]
-            ACAMERA_SENSOR_START + 28,
-    /**
-     * <p>Maximum raw value output by sensor for this frame.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Since the ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may change for different
-     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY), the white
-     * level will change accordingly. This key is similar to
-     * ACAMERA_SENSOR_INFO_WHITE_LEVEL, but specifies the camera device
-     * estimated white level for each frame.</p>
-     * <p>This key will be available if ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS is
-     * available or the camera device advertises this key via
-     * {@link ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS}.</p>
-     *
-     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
-     * @see ACAMERA_SENSOR_INFO_WHITE_LEVEL
-     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL =                        // int32
-            ACAMERA_SENSOR_START + 29,
-    ACAMERA_SENSOR_END,
-
-    /**
-     * <p>The area of the image sensor which corresponds to active pixels after any geometric
-     * distortion correction has been applied.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This is the rectangle representing the size of the active region of the sensor (i.e.
-     * the region that actually receives light from the scene) after any geometric correction
-     * has been applied, and should be treated as the maximum size in pixels of any of the
-     * image output formats aside from the raw formats.</p>
-     * <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of
-     * the full pixel array, and the size of the full pixel array is given by
-     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
-     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
-     * <p>The coordinate system for most other keys that list pixel coordinates, including
-     * ACAMERA_SCALER_CROP_REGION, is defined relative to the active array rectangle given in
-     * this field, with <code>(0, 0)</code> being the top-left of this rectangle.</p>
-     * <p>The active array may be smaller than the full pixel array, since the full array may
-     * include black calibration pixels or other inactive regions, and geometric correction
-     * resulting in scaling or cropping may have been applied.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     */
-    ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE =                     // int32[4]
-            ACAMERA_SENSOR_INFO_START,
-    /**
-     * <p>Range of sensitivities for ACAMERA_SENSOR_SENSITIVITY supported by this
-     * camera device.</p>
-     *
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The values are the standard ISO sensitivity values,
-     * as defined in ISO 12232:2006.</p>
-     */
-    ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE =                     // int32[2]
-            ACAMERA_SENSOR_INFO_START + 1,
-    /**
-     * <p>The arrangement of color filters on sensor;
-     * represents the colors in the top-left 2x2 section of
-     * the sensor, in reading order.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT =              // byte (enum)
-            ACAMERA_SENSOR_INFO_START + 2,
-    /**
-     * <p>The range of image exposure times for ACAMERA_SENSOR_EXPOSURE_TIME supported
-     * by this camera device.</p>
-     *
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE =                   // int64[2]
-            ACAMERA_SENSOR_INFO_START + 3,
-    /**
-     * <p>The maximum possible frame duration (minimum frame rate) for
-     * ACAMERA_SENSOR_FRAME_DURATION that is supported this camera device.</p>
-     *
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Attempting to use frame durations beyond the maximum will result in the frame
-     * duration being clipped to the maximum. See that control for a full definition of frame
-     * durations.</p>
-     * <p>Refer to {@link
-     * ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}
-     * for the minimum frame duration values.</p>
-     */
-    ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION =                    // int64
-            ACAMERA_SENSOR_INFO_START + 4,
-    /**
-     * <p>The physical dimensions of the full pixel
-     * array.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This is the physical size of the sensor pixel
-     * array defined by ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     */
-    ACAMERA_SENSOR_INFO_PHYSICAL_SIZE =                         // float[2]
-            ACAMERA_SENSOR_INFO_START + 5,
-    /**
-     * <p>Dimensions of the full pixel array, possibly
-     * including black calibration pixels.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The pixel count of the full pixel array of the image sensor, which covers
-     * ACAMERA_SENSOR_INFO_PHYSICAL_SIZE area.  This represents the full pixel dimensions of
-     * the raw buffers produced by this sensor.</p>
-     * <p>If a camera device supports raw sensor formats, either this or
-     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE is the maximum dimensions for the raw
-     * output formats listed in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS (this depends on
-     * whether or not the image sensor returns buffers containing pixels that are not
-     * part of the active array region for blacklevel calibration or other purposes).</p>
-     * <p>Some parts of the full pixel array may not receive light from the scene,
-     * or be otherwise inactive.  The ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE key
-     * defines the rectangle of active pixels that will be included in processed image
-     * formats.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_PHYSICAL_SIZE
-     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE =                      // int32[2]
-            ACAMERA_SENSOR_INFO_START + 6,
-    /**
-     * <p>Maximum raw value output by sensor.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This specifies the fully-saturated encoding level for the raw
-     * sample values from the sensor.  This is typically caused by the
-     * sensor becoming highly non-linear or clipping. The minimum for
-     * each channel is specified by the offset in the
-     * ACAMERA_SENSOR_BLACK_LEVEL_PATTERN key.</p>
-     * <p>The white level is typically determined either by sensor bit depth
-     * (8-14 bits is expected), or by the point where the sensor response
-     * becomes too non-linear to be useful.  The default value for this is
-     * maximum representable value for a 16-bit raw sample (2^16 - 1).</p>
-     * <p>The white level values of captured images may vary for different
-     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY). This key
-     * represents a coarse approximation for such case. It is recommended
-     * to use ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL for captures when supported
-     * by the camera device, which provides more accurate white level values.</p>
-     *
-     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
-     * @see ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_SENSOR_INFO_WHITE_LEVEL =                           // int32
-            ACAMERA_SENSOR_INFO_START + 7,
-    /**
-     * <p>The time base source for sensor capture start timestamps.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The timestamps provided for captures are always in nanoseconds and monotonic, but
-     * may not based on a time source that can be compared to other system time sources.</p>
-     * <p>This characteristic defines the source for the timestamps, and therefore whether they
-     * can be compared against other system time sources/timestamps.</p>
-     */
-    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE =                      // byte (enum)
-            ACAMERA_SENSOR_INFO_START + 8,
-    /**
-     * <p>Whether the RAW images output from this camera device are subject to
-     * lens shading correction.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If TRUE, all images produced by the camera device in the RAW image formats will
-     * have lens shading correction already applied to it. If FALSE, the images will
-     * not be adjusted for lens shading correction.
-     * See android.request.maxNumOutputRaw for a list of RAW image formats.</p>
-     * <p>This key will be <code>null</code> for all devices do not report this information.
-     * Devices with RAW capability will always report this information in this key.</p>
-     */
-    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED =                  // byte (enum)
-            ACAMERA_SENSOR_INFO_START + 9,
-    /**
-     * <p>The area of the image sensor which corresponds to active pixels prior to the
-     * application of any geometric distortion correction.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
-     * <p>This is the rectangle representing the size of the active region of the sensor (i.e.
-     * the region that actually receives light from the scene) before any geometric correction
-     * has been applied, and should be treated as the active region rectangle for any of the
-     * raw formats.  All metadata associated with raw processing (e.g. the lens shading
-     * correction map, and radial distortion fields) treats the top, left of this rectangle as
-     * the origin, (0,0).</p>
-     * <p>The size of this region determines the maximum field of view and the maximum number of
-     * pixels that an image from this sensor can contain, prior to the application of
-     * geometric distortion correction. The effective maximum pixel dimensions of a
-     * post-distortion-corrected image is given by the ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * field, and the effective maximum field of view for a post-distortion-corrected image
-     * can be calculated by applying the geometric distortion correction fields to this
-     * rectangle, and cropping to the rectangle given in ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
-     * <p>E.g. to calculate position of a pixel, (x,y), in a processed YUV output image with the
-     * dimensions in ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE given the position of a pixel,
-     * (x', y'), in the raw pixel array with dimensions give in
-     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE:</p>
-     * <ol>
-     * <li>Choose a pixel (x', y') within the active array region of the raw buffer given in
-     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE, otherwise this pixel is considered
-     * to be outside of the FOV, and will not be shown in the processed output image.</li>
-     * <li>Apply geometric distortion correction to get the post-distortion pixel coordinate,
-     * (x_i, y_i). When applying geometric correction metadata, note that metadata for raw
-     * buffers is defined relative to the top, left of the
-     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE rectangle.</li>
-     * <li>If the resulting corrected pixel coordinate is within the region given in
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, then the position of this pixel in the
-     * processed output image buffer is <code>(x_i - activeArray.left, y_i - activeArray.top)</code>,
-     * when the top, left coordinate of that buffer is treated as (0, 0).</li>
-     * </ol>
-     * <p>Thus, for pixel x',y' = (25, 25) on a sensor where ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     * is (100,100), ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE is (10, 10, 100, 100),
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE is (20, 20, 80, 80), and the geometric distortion
-     * correction doesn't change the pixel coordinate, the resulting pixel selected in
-     * pixel coordinates would be x,y = (25, 25) relative to the top,left of the raw buffer
-     * with dimensions given in ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE, and would be (5, 5)
-     * relative to the top,left of post-processed YUV output buffer with dimensions given in
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
-     * <p>The currently supported fields that correct for geometric distortion are:</p>
-     * <ol>
-     * <li>ACAMERA_LENS_RADIAL_DISTORTION.</li>
-     * </ol>
-     * <p>If all of the geometric distortion fields are no-ops, this rectangle will be the same
-     * as the post-distortion-corrected rectangle given in
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
-     * <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of
-     * the full pixel array, and the size of the full pixel array is given by
-     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
-     * <p>The pre-correction active array may be smaller than the full pixel array, since the
-     * full array may include black calibration pixels or other inactive regions.</p>
-     *
-     * @see ACAMERA_LENS_RADIAL_DISTORTION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE =      // int32[4]
-            ACAMERA_SENSOR_INFO_START + 10,
-    ACAMERA_SENSOR_INFO_END,
-
-    /**
-     * <p>Quality of lens shading correction applied
-     * to the image data.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When set to OFF mode, no lens shading correction will be applied by the
-     * camera device, and an identity lens shading map data will be provided
-     * if <code>ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE == ON</code>. For example, for lens
-     * shading map with size of <code>[ 4, 3 ]</code>,
-     * the output android.statistics.lensShadingCorrectionMap for this case will be an identity
-     * map shown below:</p>
-     * <pre><code>[ 1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
-     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
-     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
-     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
-     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
-     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0 ]
-     * </code></pre>
-     * <p>When set to other modes, lens shading correction will be applied by the camera
-     * device. Applications can request lens shading map data by setting
-     * ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE to ON, and then the camera device will provide lens
-     * shading map data in android.statistics.lensShadingCorrectionMap; the returned shading map
-     * data will be the one applied by the camera device for this capture request.</p>
-     * <p>The shading map data may depend on the auto-exposure (AE) and AWB statistics, therefore
-     * the reliability of the map data may be affected by the AE and AWB algorithms. When AE and
-     * AWB are in AUTO modes(ACAMERA_CONTROL_AE_MODE <code>!=</code> OFF and ACAMERA_CONTROL_AWB_MODE <code>!=</code>
-     * OFF), to get best results, it is recommended that the applications wait for the AE and AWB
-     * to be converged before using the returned shading map data.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
-     */
-    ACAMERA_SHADING_MODE =                                      // byte (enum)
-            ACAMERA_SHADING_START,
-    /**
-     * <p>List of lens shading modes for ACAMERA_SHADING_MODE that are supported by this camera device.</p>
-     *
-     * @see ACAMERA_SHADING_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This list contains lens shading modes that can be set for the camera device.
-     * Camera devices that support the MANUAL_POST_PROCESSING capability will always
-     * list OFF and FAST mode. This includes all FULL level devices.
-     * LEGACY devices will always only support FAST mode.</p>
-     */
-    ACAMERA_SHADING_AVAILABLE_MODES =                           // byte[n]
-            ACAMERA_SHADING_START + 2,
-    ACAMERA_SHADING_END,
-
-    /**
-     * <p>Operating mode for the face detector
-     * unit.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Whether face detection is enabled, and whether it
-     * should output just the basic fields or the full set of
-     * fields.</p>
-     */
-    ACAMERA_STATISTICS_FACE_DETECT_MODE =                       // byte (enum)
-            ACAMERA_STATISTICS_START,
-    /**
-     * <p>Operating mode for hot pixel map generation.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>If set to <code>true</code>, a hot pixel map is returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.
-     * If set to <code>false</code>, no hot pixel map will be returned.</p>
-     *
-     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
-     */
-    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE =                     // byte (enum)
-            ACAMERA_STATISTICS_START + 3,
-    /**
-     * <p>List of unique IDs for detected faces.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Each detected face is given a unique ID that is valid for as long as the face is visible
-     * to the camera device.  A face that leaves the field of view and later returns may be
-     * assigned a new ID.</p>
-     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE == FULL</p>
-     *
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     */
-    ACAMERA_STATISTICS_FACE_IDS =                               // int32[n]
-            ACAMERA_STATISTICS_START + 4,
-    /**
-     * <p>List of landmarks for detected
-     * faces.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The coordinate system is that of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with
-     * <code>(0, 0)</code> being the top-left pixel of the active array.</p>
-     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE == FULL</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     */
-    ACAMERA_STATISTICS_FACE_LANDMARKS =                         // int32[n*6]
-            ACAMERA_STATISTICS_START + 5,
-    /**
-     * <p>List of the bounding rectangles for detected
-     * faces.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
-     * <p>The coordinate system is that of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with
-     * <code>(0, 0)</code> being the top-left pixel of the active array.</p>
-     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE != OFF</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     */
-    ACAMERA_STATISTICS_FACE_RECTANGLES =                        // int32[n*4]
-            ACAMERA_STATISTICS_START + 6,
-    /**
-     * <p>List of the face confidence scores for
-     * detected faces</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE != OFF.</p>
-     *
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     */
-    ACAMERA_STATISTICS_FACE_SCORES =                            // byte[n]
-            ACAMERA_STATISTICS_START + 7,
-    /**
-     * <p>The shading map is a low-resolution floating-point map
-     * that lists the coefficients used to correct for vignetting and color shading,
-     * for each Bayer color channel of RAW image data.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The map provided here is the same map that is used by the camera device to
-     * correct both color shading and vignetting for output non-RAW images.</p>
-     * <p>When there is no lens shading correction applied to RAW
-     * output images (ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED <code>==</code>
-     * false), this map is the complete lens shading correction
-     * map; when there is some lens shading correction applied to
-     * the RAW output image (ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED<code>==</code> true), this map reports the remaining lens shading
-     * correction map that needs to be applied to get shading
-     * corrected images that match the camera device's output for
-     * non-RAW formats.</p>
-     * <p>For a complete shading correction map, the least shaded
-     * section of the image will have a gain factor of 1; all
-     * other sections will have gains above 1.</p>
-     * <p>When ACAMERA_COLOR_CORRECTION_MODE = TRANSFORM_MATRIX, the map
-     * will take into account the colorCorrection settings.</p>
-     * <p>The shading map is for the entire active pixel array, and is not
-     * affected by the crop region specified in the request. Each shading map
-     * entry is the value of the shading compensation map over a specific
-     * pixel on the sensor.  Specifically, with a (N x M) resolution shading
-     * map, and an active pixel array size (W x H), shading map entry
-     * (x,y) ϵ (0 ... N-1, 0 ... M-1) is the value of the shading map at
-     * pixel ( ((W-1)/(N-1)) * x, ((H-1)/(M-1)) * y) for the four color channels.
-     * The map is assumed to be bilinearly interpolated between the sample points.</p>
-     * <p>The channel order is [R, Geven, Godd, B], where Geven is the green
-     * channel for the even rows of a Bayer pattern, and Godd is the odd rows.
-     * The shading map is stored in a fully interleaved format, and its size
-     * is provided in the camera static metadata by ACAMERA_LENS_INFO_SHADING_MAP_SIZE.</p>
-     * <p>The shading map will generally have on the order of 30-40 rows and columns,
-     * and will be smaller than 64x64.</p>
-     * <p>As an example, given a very small map defined as:</p>
-     * <pre><code>ACAMERA_LENS_INFO_SHADING_MAP_SIZE = [ 4, 3 ]
-     * ACAMERA_STATISTICS_LENS_SHADING_MAP =
-     * [ 1.3, 1.2, 1.15, 1.2,  1.2, 1.2, 1.15, 1.2,
-     *     1.1, 1.2, 1.2, 1.2,  1.3, 1.2, 1.3, 1.3,
-     *   1.2, 1.2, 1.25, 1.1,  1.1, 1.1, 1.1, 1.0,
-     *     1.0, 1.0, 1.0, 1.0,  1.2, 1.3, 1.25, 1.2,
-     *   1.3, 1.2, 1.2, 1.3,   1.2, 1.15, 1.1, 1.2,
-     *     1.2, 1.1, 1.0, 1.2,  1.3, 1.15, 1.2, 1.3 ]
-     * </code></pre>
-     * <p>The low-resolution scaling map images for each channel are
-     * (displayed using nearest-neighbor interpolation):</p>
-     * <p><img alt="Red lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/red_shading.png" />
-     * <img alt="Green (even rows) lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/green_e_shading.png" />
-     * <img alt="Green (odd rows) lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/green_o_shading.png" />
-     * <img alt="Blue lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/blue_shading.png" /></p>
-     * <p>As a visualization only, inverting the full-color map to recover an
-     * image of a gray wall (using bicubic interpolation for visual quality)
-     * as captured by the sensor gives:</p>
-     * <p><img alt="Image of a uniform white wall (inverse shading map)" src="../images/camera2/metadata/android.statistics.lensShadingMap/inv_shading.png" /></p>
-     * <p>Note that the RAW image data might be subject to lens shading
-     * correction not reported on this map. Query
-     * ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED to see if RAW image data has subject
-     * to lens shading correction. If ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
-     * is TRUE, the RAW image data is subject to partial or full lens shading
-     * correction. In the case full lens shading correction is applied to RAW
-     * images, the gain factor map reported in this key will contain all 1.0 gains.
-     * In other words, the map reported in this key is the remaining lens shading
-     * that needs to be applied on the RAW image to get images without lens shading
-     * artifacts. See android.request.maxNumOutputRaw for a list of RAW image
-     * formats.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_MODE
-     * @see ACAMERA_LENS_INFO_SHADING_MAP_SIZE
-     * @see ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
-     */
-    ACAMERA_STATISTICS_LENS_SHADING_MAP =                       // float[4*n*m]
-            ACAMERA_STATISTICS_START + 11,
-    /**
-     * <p>The camera device estimated scene illumination lighting
-     * frequency.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Many light sources, such as most fluorescent lights, flicker at a rate
-     * that depends on the local utility power standards. This flicker must be
-     * accounted for by auto-exposure routines to avoid artifacts in captured images.
-     * The camera device uses this entry to tell the application what the scene
-     * illuminant frequency is.</p>
-     * <p>When manual exposure control is enabled
-     * (<code>ACAMERA_CONTROL_AE_MODE == OFF</code> or <code>ACAMERA_CONTROL_MODE ==
-     * OFF</code>), the ACAMERA_CONTROL_AE_ANTIBANDING_MODE doesn't perform
-     * antibanding, and the application can ensure it selects
-     * exposure times that do not cause banding issues by looking
-     * into this metadata field. See
-     * ACAMERA_CONTROL_AE_ANTIBANDING_MODE for more details.</p>
-     * <p>Reports NONE if there doesn't appear to be flickering illumination.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_STATISTICS_SCENE_FLICKER =                          // byte (enum)
-            ACAMERA_STATISTICS_START + 14,
-    /**
-     * <p>List of <code>(x, y)</code> coordinates of hot/defective pixels on the sensor.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>A coordinate <code>(x, y)</code> must lie between <code>(0, 0)</code>, and
-     * <code>(width - 1, height - 1)</code> (inclusive), which are the top-left and
-     * bottom-right of the pixel array, respectively. The width and
-     * height dimensions are given in ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.
-     * This may include hot pixels that lie outside of the active array
-     * bounds given by ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     */
-    ACAMERA_STATISTICS_HOT_PIXEL_MAP =                          // int32[2*n]
-            ACAMERA_STATISTICS_START + 15,
-    /**
-     * <p>Whether the camera device will output the lens
-     * shading map in output result metadata.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When set to ON,
-     * ACAMERA_STATISTICS_LENS_SHADING_MAP will be provided in
-     * the output result metadata.</p>
-     * <p>ON is always supported on devices with the RAW capability.</p>
-     *
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
-     */
-    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE =                  // byte (enum)
-            ACAMERA_STATISTICS_START + 16,
-    ACAMERA_STATISTICS_END,
-
-    /**
-     * <p>List of face detection modes for ACAMERA_STATISTICS_FACE_DETECT_MODE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>OFF is always supported.</p>
-     */
-    ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES =       // byte[n]
-            ACAMERA_STATISTICS_INFO_START,
-    /**
-     * <p>The maximum number of simultaneously detectable
-     * faces.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT =                    // int32
-            ACAMERA_STATISTICS_INFO_START + 2,
-    /**
-     * <p>List of hot pixel map output modes for ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If no hotpixel map output is available for this camera device, this will contain only
-     * <code>false</code>.</p>
-     * <p>ON is always supported on devices with the RAW capability.</p>
-     */
-    ACAMERA_STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES =     // byte[n]
-            ACAMERA_STATISTICS_INFO_START + 6,
-    /**
-     * <p>List of lens shading map output modes for ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE that
-     * are supported by this camera device.</p>
-     *
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If no lens shading map output is available for this camera device, this key will
-     * contain only OFF.</p>
-     * <p>ON is always supported on devices with the RAW capability.
-     * LEGACY mode devices will always only support OFF.</p>
-     */
-    ACAMERA_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES =  // byte[n]
-            ACAMERA_STATISTICS_INFO_START + 7,
-    ACAMERA_STATISTICS_INFO_END,
-
-    /**
-     * <p>Tonemapping / contrast / gamma curve for the blue
-     * channel, to use when ACAMERA_TONEMAP_MODE is
-     * CONTRAST_CURVE.</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>See ACAMERA_TONEMAP_CURVE_RED for more details.</p>
-     *
-     * @see ACAMERA_TONEMAP_CURVE_RED
-     */
-    ACAMERA_TONEMAP_CURVE_BLUE =                                // float[n*2]
-            ACAMERA_TONEMAP_START,
-    /**
-     * <p>Tonemapping / contrast / gamma curve for the green
-     * channel, to use when ACAMERA_TONEMAP_MODE is
-     * CONTRAST_CURVE.</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>See ACAMERA_TONEMAP_CURVE_RED for more details.</p>
-     *
-     * @see ACAMERA_TONEMAP_CURVE_RED
-     */
-    ACAMERA_TONEMAP_CURVE_GREEN =                               // float[n*2]
-            ACAMERA_TONEMAP_START + 1,
-    /**
-     * <p>Tonemapping / contrast / gamma curve for the red
-     * channel, to use when ACAMERA_TONEMAP_MODE is
-     * CONTRAST_CURVE.</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Each channel's curve is defined by an array of control points:</p>
-     * <pre><code>ACAMERA_TONEMAP_CURVE_RED =
-     *   [ P0in, P0out, P1in, P1out, P2in, P2out, P3in, P3out, ..., PNin, PNout ]
-     * 2 &lt;= N &lt;= ACAMERA_TONEMAP_MAX_CURVE_POINTS</code></pre>
-     * <p>These are sorted in order of increasing <code>Pin</code>; it is
-     * required that input values 0.0 and 1.0 are included in the list to
-     * define a complete mapping. For input values between control points,
-     * the camera device must linearly interpolate between the control
-     * points.</p>
-     * <p>Each curve can have an independent number of points, and the number
-     * of points can be less than max (that is, the request doesn't have to
-     * always provide a curve with number of points equivalent to
-     * ACAMERA_TONEMAP_MAX_CURVE_POINTS).</p>
-     * <p>A few examples, and their corresponding graphical mappings; these
-     * only specify the red channel and the precision is limited to 4
-     * digits, for conciseness.</p>
-     * <p>Linear mapping:</p>
-     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [ 0, 0, 1.0, 1.0 ]
-     * </code></pre>
-     * <p><img alt="Linear mapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/linear_tonemap.png" /></p>
-     * <p>Invert mapping:</p>
-     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [ 0, 1.0, 1.0, 0 ]
-     * </code></pre>
-     * <p><img alt="Inverting mapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/inverse_tonemap.png" /></p>
-     * <p>Gamma 1/2.2 mapping, with 16 control points:</p>
-     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [
-     *   0.0000, 0.0000, 0.0667, 0.2920, 0.1333, 0.4002, 0.2000, 0.4812,
-     *   0.2667, 0.5484, 0.3333, 0.6069, 0.4000, 0.6594, 0.4667, 0.7072,
-     *   0.5333, 0.7515, 0.6000, 0.7928, 0.6667, 0.8317, 0.7333, 0.8685,
-     *   0.8000, 0.9035, 0.8667, 0.9370, 0.9333, 0.9691, 1.0000, 1.0000 ]
-     * </code></pre>
-     * <p><img alt="Gamma = 1/2.2 tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/gamma_tonemap.png" /></p>
-     * <p>Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:</p>
-     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [
-     *   0.0000, 0.0000, 0.0667, 0.2864, 0.1333, 0.4007, 0.2000, 0.4845,
-     *   0.2667, 0.5532, 0.3333, 0.6125, 0.4000, 0.6652, 0.4667, 0.7130,
-     *   0.5333, 0.7569, 0.6000, 0.7977, 0.6667, 0.8360, 0.7333, 0.8721,
-     *   0.8000, 0.9063, 0.8667, 0.9389, 0.9333, 0.9701, 1.0000, 1.0000 ]
-     * </code></pre>
-     * <p><img alt="sRGB tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p>
-     *
-     * @see ACAMERA_TONEMAP_CURVE_RED
-     * @see ACAMERA_TONEMAP_MAX_CURVE_POINTS
-     */
-    ACAMERA_TONEMAP_CURVE_RED =                                 // float[n*2]
-            ACAMERA_TONEMAP_START + 2,
-    /**
-     * <p>High-level global contrast/gamma/tonemapping control.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When switching to an application-defined contrast curve by setting
-     * ACAMERA_TONEMAP_MODE to CONTRAST_CURVE, the curve is defined
-     * per-channel with a set of <code>(in, out)</code> points that specify the
-     * mapping from input high-bit-depth pixel value to the output
-     * low-bit-depth value.  Since the actual pixel ranges of both input
-     * and output may change depending on the camera pipeline, the values
-     * are specified by normalized floating-point numbers.</p>
-     * <p>More-complex color mapping operations such as 3D color look-up
-     * tables, selective chroma enhancement, or other non-linear color
-     * transforms will be disabled when ACAMERA_TONEMAP_MODE is
-     * CONTRAST_CURVE.</p>
-     * <p>When using either FAST or HIGH_QUALITY, the camera device will
-     * emit its own tonemap curve in android.tonemap.curve.
-     * These values are always available, and as close as possible to the
-     * actually used nonlinear/nonglobal transforms.</p>
-     * <p>If a request is sent with CONTRAST_CURVE with the camera device's
-     * provided curve in FAST or HIGH_QUALITY, the image's tonemap will be
-     * roughly the same.</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     */
-    ACAMERA_TONEMAP_MODE =                                      // byte (enum)
-            ACAMERA_TONEMAP_START + 3,
-    /**
-     * <p>Maximum number of supported points in the
-     * tonemap curve that can be used for android.tonemap.curve.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If the actual number of points provided by the application (in ACAMERA_TONEMAPCURVE_*) is
-     * less than this maximum, the camera device will resample the curve to its internal
-     * representation, using linear interpolation.</p>
-     * <p>The output curves in the result metadata may have a different number
-     * of points than the input curves, and will represent the actual
-     * hardware curves used as closely as possible when linearly interpolated.</p>
-     */
-    ACAMERA_TONEMAP_MAX_CURVE_POINTS =                          // int32
-            ACAMERA_TONEMAP_START + 4,
-    /**
-     * <p>List of tonemapping modes for ACAMERA_TONEMAP_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always contain
-     * at least one of below mode combinations:</p>
-     * <ul>
-     * <li>CONTRAST_CURVE, FAST and HIGH_QUALITY</li>
-     * <li>GAMMA_VALUE, PRESET_CURVE, FAST and HIGH_QUALITY</li>
-     * </ul>
-     * <p>This includes all FULL level devices.</p>
-     */
-    ACAMERA_TONEMAP_AVAILABLE_TONE_MAP_MODES =                  // byte[n]
-            ACAMERA_TONEMAP_START + 5,
-    /**
-     * <p>Tonemapping curve to use when ACAMERA_TONEMAP_MODE is
-     * GAMMA_VALUE</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The tonemap curve will be defined the following formula:
-     * * OUT = pow(IN, 1.0 / gamma)
-     * where IN and OUT is the input pixel value scaled to range [0.0, 1.0],
-     * pow is the power function and gamma is the gamma value specified by this
-     * key.</p>
-     * <p>The same curve will be applied to all color channels. The camera device
-     * may clip the input gamma value to its supported range. The actual applied
-     * value will be returned in capture result.</p>
-     * <p>The valid range of gamma value varies on different devices, but values
-     * within [1.0, 5.0] are guaranteed not to be clipped.</p>
-     */
-    ACAMERA_TONEMAP_GAMMA =                                     // float
-            ACAMERA_TONEMAP_START + 6,
-    /**
-     * <p>Tonemapping curve to use when ACAMERA_TONEMAP_MODE is
-     * PRESET_CURVE</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The tonemap curve will be defined by specified standard.</p>
-     * <p>sRGB (approximated by 16 control points):</p>
-     * <p><img alt="sRGB tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p>
-     * <p>Rec. 709 (approximated by 16 control points):</p>
-     * <p><img alt="Rec. 709 tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/rec709_tonemap.png" /></p>
-     * <p>Note that above figures show a 16 control points approximation of preset
-     * curves. Camera devices may apply a different approximation to the curve.</p>
-     */
-    ACAMERA_TONEMAP_PRESET_CURVE =                              // byte (enum)
-            ACAMERA_TONEMAP_START + 7,
-    ACAMERA_TONEMAP_END,
-
-    /**
-     * <p>Generally classifies the overall set of the camera device functionality.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The supported hardware level is a high-level description of the camera device's
-     * capabilities, summarizing several capabilities into one field.  Each level adds additional
-     * features to the previous one, and is always a strict superset of the previous level.
-     * The ordering is <code>LEGACY &lt; LIMITED &lt; FULL &lt; LEVEL_3</code>.</p>
-     * <p>Starting from <code>LEVEL_3</code>, the level enumerations are guaranteed to be in increasing
-     * numerical value as well. To check if a given device is at least at a given hardware level,
-     * the following code snippet can be used:</p>
-     * <pre><code>// Returns true if the device supports the required hardware level, or better.
-     * boolean isHardwareLevelSupported(CameraCharacteristics c, int requiredLevel) {
-     *     int deviceLevel = c.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
-     *     if (deviceLevel == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
-     *         return requiredLevel == deviceLevel;
-     *     }
-     *     // deviceLevel is not LEGACY, can use numerical sort
-     *     return requiredLevel &lt;= deviceLevel;
-     * }
-     * </code></pre>
-     * <p>At a high level, the levels are:</p>
-     * <ul>
-     * <li><code>LEGACY</code> devices operate in a backwards-compatibility mode for older
-     *   Android devices, and have very limited capabilities.</li>
-     * <li><code>LIMITED</code> devices represent the
-     *   baseline feature set, and may also include additional capabilities that are
-     *   subsets of <code>FULL</code>.</li>
-     * <li><code>FULL</code> devices additionally support per-frame manual control of sensor, flash, lens and
-     *   post-processing settings, and image capture at a high rate.</li>
-     * <li><code>LEVEL_3</code> devices additionally support YUV reprocessing and RAW image capture, along
-     *   with additional output stream configurations.</li>
-     * </ul>
-     * <p>See the individual level enums for full descriptions of the supported capabilities.  The
-     * ACAMERA_REQUEST_AVAILABLE_CAPABILITIES entry describes the device's capabilities at a
-     * finer-grain level, if needed. In addition, many controls have their available settings or
-     * ranges defined in individual metadata tag entries in this document.</p>
-     * <p>Some features are not part of any particular hardware level or capability and must be
-     * queried separately. These include:</p>
-     * <ul>
-     * <li>Calibrated timestamps (ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> REALTIME)</li>
-     * <li>Precision lens control (ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION <code>==</code> CALIBRATED)</li>
-     * <li>Face detection (ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES)</li>
-     * <li>Optical or electrical image stabilization
-     *   (ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION,
-     *    ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES)</li>
-     * </ul>
-     *
-     * @see ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES
-     * @see ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION
-     * @see ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * @see ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
-     * @see ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES
-     */
-    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL =                     // byte (enum)
-            ACAMERA_INFO_START,
-    ACAMERA_INFO_END,
-
-    /**
-     * <p>Whether black-level compensation is locked
-     * to its current values, or is free to vary.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Whether the black level offset was locked for this frame.  Should be
-     * ON if ACAMERA_BLACK_LEVEL_LOCK was ON in the capture request, unless
-     * a change in other capture settings forced the camera device to
-     * perform a black level reset.</p>
-     *
-     * @see ACAMERA_BLACK_LEVEL_LOCK
-     */
-    ACAMERA_BLACK_LEVEL_LOCK =                                  // byte (enum)
-            ACAMERA_BLACK_LEVEL_START,
-    ACAMERA_BLACK_LEVEL_END,
-
-    /**
-     * <p>The frame number corresponding to the last request
-     * with which the output result (metadata + buffers) has been fully
-     * synchronized.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>When a request is submitted to the camera device, there is usually a
-     * delay of several frames before the controls get applied. A camera
-     * device may either choose to account for this delay by implementing a
-     * pipeline and carefully submit well-timed atomic control updates, or
-     * it may start streaming control changes that span over several frame
-     * boundaries.</p>
-     * <p>In the latter case, whenever a request's settings change relative to
-     * the previous submitted request, the full set of changes may take
-     * multiple frame durations to fully take effect. Some settings may
-     * take effect sooner (in less frame durations) than others.</p>
-     * <p>While a set of control changes are being propagated, this value
-     * will be CONVERGING.</p>
-     * <p>Once it is fully known that a set of control changes have been
-     * finished propagating, and the resulting updated control settings
-     * have been read back by the camera device, this value will be set
-     * to a non-negative frame number (corresponding to the request to
-     * which the results have synchronized to).</p>
-     * <p>Older camera device implementations may not have a way to detect
-     * when all camera controls have been applied, and will always set this
-     * value to UNKNOWN.</p>
-     * <p>FULL capability devices will always have this value set to the
-     * frame number of the request corresponding to this result.</p>
-     * <p><em>Further details</em>:</p>
-     * <ul>
-     * <li>Whenever a request differs from the last request, any future
-     * results not yet returned may have this value set to CONVERGING (this
-     * could include any in-progress captures not yet returned by the camera
-     * device, for more details see pipeline considerations below).</li>
-     * <li>Submitting a series of multiple requests that differ from the
-     * previous request (e.g. r1, r2, r3 s.t. r1 != r2 != r3)
-     * moves the new synchronization frame to the last non-repeating
-     * request (using the smallest frame number from the contiguous list of
-     * repeating requests).</li>
-     * <li>Submitting the same request repeatedly will not change this value
-     * to CONVERGING, if it was already a non-negative value.</li>
-     * <li>When this value changes to non-negative, that means that all of the
-     * metadata controls from the request have been applied, all of the
-     * metadata controls from the camera device have been read to the
-     * updated values (into the result), and all of the graphics buffers
-     * corresponding to this result are also synchronized to the request.</li>
-     * </ul>
-     * <p><em>Pipeline considerations</em>:</p>
-     * <p>Submitting a request with updated controls relative to the previously
-     * submitted requests may also invalidate the synchronization state
-     * of all the results corresponding to currently in-flight requests.</p>
-     * <p>In other words, results for this current request and up to
-     * ACAMERA_REQUEST_PIPELINE_MAX_DEPTH prior requests may have their
-     * ACAMERA_SYNC_FRAME_NUMBER change to CONVERGING.</p>
-     *
-     * @see ACAMERA_REQUEST_PIPELINE_MAX_DEPTH
-     * @see ACAMERA_SYNC_FRAME_NUMBER
-     */
-    ACAMERA_SYNC_FRAME_NUMBER =                                 // int64 (enum)
-            ACAMERA_SYNC_START,
-    /**
-     * <p>The maximum number of frames that can occur after a request
-     * (different than the previous) has been submitted, and before the
-     * result's state becomes synchronized.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This defines the maximum distance (in number of metadata results),
-     * between the frame number of the request that has new controls to apply
-     * and the frame number of the result that has all the controls applied.</p>
-     * <p>In other words this acts as an upper boundary for how many frames
-     * must occur before the camera device knows for a fact that the new
-     * submitted camera settings have been applied in outgoing frames.</p>
-     */
-    ACAMERA_SYNC_MAX_LATENCY =                                  // int32 (enum)
-            ACAMERA_SYNC_START + 1,
-    ACAMERA_SYNC_END,
-
-    /**
-     * <p>The available depth dataspace stream
-     * configurations that this camera device supports
-     * (i.e. format, width, height, output/input stream).</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>These are output stream configurations for use with
-     * dataSpace HAL_DATASPACE_DEPTH. The configurations are
-     * listed as <code>(format, width, height, input?)</code> tuples.</p>
-     * <p>Only devices that support depth output for at least
-     * the HAL_PIXEL_FORMAT_Y16 dense depth map may include
-     * this entry.</p>
-     * <p>A device that also supports the HAL_PIXEL_FORMAT_BLOB
-     * sparse depth point cloud must report a single entry for
-     * the format in this list as <code>(HAL_PIXEL_FORMAT_BLOB,
-     * android.depth.maxDepthSamples, 1, OUTPUT)</code> in addition to
-     * the entries for HAL_PIXEL_FORMAT_Y16.</p>
-     */
-    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS =       // int32[n*4] (enum)
-            ACAMERA_DEPTH_START + 1,
-    /**
-     * <p>This lists the minimum frame duration for each
-     * format/size combination for depth output formats.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This should correspond to the frame duration when only that
-     * stream is active, with all processing (typically in android.*.mode)
-     * set to either OFF or FAST.</p>
-     * <p>When multiple streams are used in a request, the minimum frame
-     * duration will be max(individual stream min durations).</p>
-     * <p>The minimum frame duration of a stream (of a particular format, size)
-     * is the same regardless of whether the stream is input or output.</p>
-     * <p>See ACAMERA_SENSOR_FRAME_DURATION and
-     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for more details about
-     * calculating the max frame rate.</p>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     */
-    ACAMERA_DEPTH_AVAILABLE_DEPTH_MIN_FRAME_DURATIONS =         // int64[4*n]
-            ACAMERA_DEPTH_START + 2,
-    /**
-     * <p>This lists the maximum stall duration for each
-     * output format/size combination for depth streams.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>A stall duration is how much extra time would get added
-     * to the normal minimum frame duration for a repeating request
-     * that has streams with non-zero stall.</p>
-     * <p>This functions similarly to
-     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for depth
-     * streams.</p>
-     * <p>All depth output stream formats may have a nonzero stall
-     * duration.</p>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
-     */
-    ACAMERA_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS =             // int64[4*n]
-            ACAMERA_DEPTH_START + 3,
-    /**
-     * <p>Indicates whether a capture request may target both a
-     * DEPTH16 / DEPTH_POINT_CLOUD output, and normal color outputs (such as
-     * YUV_420_888, JPEG, or RAW) simultaneously.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If TRUE, including both depth and color outputs in a single
-     * capture request is not supported. An application must interleave color
-     * and depth requests.  If FALSE, a single request can target both types
-     * of output.</p>
-     * <p>Typically, this restriction exists on camera devices that
-     * need to emit a specific pattern or wavelength of light to
-     * measure depth values, which causes the color image to be
-     * corrupted during depth measurement.</p>
-     */
-    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE =                          // byte (enum)
-            ACAMERA_DEPTH_START + 4,
-    ACAMERA_DEPTH_END,
-
-} acamera_metadata_tag_t;
-
-/**
- * Enumeration definitions for the various entries that need them
- */
-
-// ACAMERA_COLOR_CORRECTION_MODE
-typedef enum acamera_metadata_enum_acamera_color_correction_mode {
-    /**
-     * <p>Use the ACAMERA_COLOR_CORRECTION_TRANSFORM matrix
-     * and ACAMERA_COLOR_CORRECTION_GAINS to do color conversion.</p>
-     * <p>All advanced white balance adjustments (not specified
-     * by our white balance pipeline) must be disabled.</p>
-     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
-     * TRANSFORM_MATRIX is ignored. The camera device will override
-     * this value to either FAST or HIGH_QUALITY.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_MODE_TRANSFORM_MATRIX                   = 0,
-
-    /**
-     * <p>Color correction processing must not slow down
-     * capture rate relative to sensor raw output.</p>
-     * <p>Advanced white balance adjustments above and beyond
-     * the specified white balance pipeline may be applied.</p>
-     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
-     * the camera device uses the last frame's AWB values
-     * (or defaults if AWB has never been run).</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_MODE_FAST                               = 1,
-
-    /**
-     * <p>Color correction processing operates at improved
-     * quality but the capture rate might be reduced (relative to sensor
-     * raw output rate)</p>
-     * <p>Advanced white balance adjustments above and beyond
-     * the specified white balance pipeline may be applied.</p>
-     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
-     * the camera device uses the last frame's AWB values
-     * (or defaults if AWB has never been run).</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_MODE_HIGH_QUALITY                       = 2,
-
-} acamera_metadata_enum_android_color_correction_mode_t;
-
-// ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
-typedef enum acamera_metadata_enum_acamera_color_correction_aberration_mode {
-    /**
-     * <p>No aberration correction is applied.</p>
-     */
-    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_OFF                     = 0,
-
-    /**
-     * <p>Aberration correction will not slow down capture rate
-     * relative to sensor raw output.</p>
-     */
-    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_FAST                    = 1,
-
-    /**
-     * <p>Aberration correction operates at improved quality but the capture rate might be
-     * reduced (relative to sensor raw output rate)</p>
-     */
-    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY            = 2,
-
-} acamera_metadata_enum_android_color_correction_aberration_mode_t;
-
-
-// ACAMERA_CONTROL_AE_ANTIBANDING_MODE
-typedef enum acamera_metadata_enum_acamera_control_ae_antibanding_mode {
-    /**
-     * <p>The camera device will not adjust exposure duration to
-     * avoid banding problems.</p>
-     */
-    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_OFF                          = 0,
-
-    /**
-     * <p>The camera device will adjust exposure duration to
-     * avoid banding problems with 50Hz illumination sources.</p>
-     */
-    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_50HZ                         = 1,
-
-    /**
-     * <p>The camera device will adjust exposure duration to
-     * avoid banding problems with 60Hz illumination
-     * sources.</p>
-     */
-    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_60HZ                         = 2,
-
-    /**
-     * <p>The camera device will automatically adapt its
-     * antibanding routine to the current illumination
-     * condition. This is the default mode if AUTO is
-     * available on given camera device.</p>
-     */
-    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_AUTO                         = 3,
-
-} acamera_metadata_enum_android_control_ae_antibanding_mode_t;
-
-// ACAMERA_CONTROL_AE_LOCK
-typedef enum acamera_metadata_enum_acamera_control_ae_lock {
-    /**
-     * <p>Auto-exposure lock is disabled; the AE algorithm
-     * is free to update its parameters.</p>
-     */
-    ACAMERA_CONTROL_AE_LOCK_OFF                                      = 0,
-
-    /**
-     * <p>Auto-exposure lock is enabled; the AE algorithm
-     * must not update the exposure and sensitivity parameters
-     * while the lock is active.</p>
-     * <p>ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION setting changes
-     * will still take effect while auto-exposure is locked.</p>
-     * <p>Some rare LEGACY devices may not support
-     * this, in which case the value will always be overridden to OFF.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
-     */
-    ACAMERA_CONTROL_AE_LOCK_ON                                       = 1,
-
-} acamera_metadata_enum_android_control_ae_lock_t;
-
-// ACAMERA_CONTROL_AE_MODE
-typedef enum acamera_metadata_enum_acamera_control_ae_mode {
-    /**
-     * <p>The camera device's autoexposure routine is disabled.</p>
-     * <p>The application-selected ACAMERA_SENSOR_EXPOSURE_TIME,
-     * ACAMERA_SENSOR_SENSITIVITY and
-     * ACAMERA_SENSOR_FRAME_DURATION are used by the camera
-     * device, along with ACAMERA_FLASH_* fields, if there's
-     * a flash unit for this camera device.</p>
-     * <p>Note that auto-white balance (AWB) and auto-focus (AF)
-     * behavior is device dependent when AE is in OFF mode.
-     * To have consistent behavior across different devices,
-     * it is recommended to either set AWB and AF to OFF mode
-     * or lock AWB and AF before setting AE to OFF.
-     * See ACAMERA_CONTROL_AWB_MODE, ACAMERA_CONTROL_AF_MODE,
-     * ACAMERA_CONTROL_AWB_LOCK, and ACAMERA_CONTROL_AF_TRIGGER
-     * for more details.</p>
-     * <p>LEGACY devices do not support the OFF mode and will
-     * override attempts to use this value to ON.</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AF_TRIGGER
-     * @see ACAMERA_CONTROL_AWB_LOCK
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_AE_MODE_OFF                                      = 0,
-
-    /**
-     * <p>The camera device's autoexposure routine is active,
-     * with no flash control.</p>
-     * <p>The application's values for
-     * ACAMERA_SENSOR_EXPOSURE_TIME,
-     * ACAMERA_SENSOR_SENSITIVITY, and
-     * ACAMERA_SENSOR_FRAME_DURATION are ignored. The
-     * application has control over the various
-     * ACAMERA_FLASH_* fields.</p>
-     *
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_AE_MODE_ON                                       = 1,
-
-    /**
-     * <p>Like ON, except that the camera device also controls
-     * the camera's flash unit, firing it in low-light
-     * conditions.</p>
-     * <p>The flash may be fired during a precapture sequence
-     * (triggered by ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER) and
-     * may be fired for captures for which the
-     * ACAMERA_CONTROL_CAPTURE_INTENT field is set to
-     * STILL_CAPTURE</p>
-     *
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_CAPTURE_INTENT
-     */
-    ACAMERA_CONTROL_AE_MODE_ON_AUTO_FLASH                            = 2,
-
-    /**
-     * <p>Like ON, except that the camera device also controls
-     * the camera's flash unit, always firing it for still
-     * captures.</p>
-     * <p>The flash may be fired during a precapture sequence
-     * (triggered by ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER) and
-     * will always be fired for captures for which the
-     * ACAMERA_CONTROL_CAPTURE_INTENT field is set to
-     * STILL_CAPTURE</p>
-     *
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_CAPTURE_INTENT
-     */
-    ACAMERA_CONTROL_AE_MODE_ON_ALWAYS_FLASH                          = 3,
-
-    /**
-     * <p>Like ON_AUTO_FLASH, but with automatic red eye
-     * reduction.</p>
-     * <p>If deemed necessary by the camera device, a red eye
-     * reduction flash will fire during the precapture
-     * sequence.</p>
-     */
-    ACAMERA_CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE                     = 4,
-
-} acamera_metadata_enum_android_control_ae_mode_t;
-
-// ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-typedef enum acamera_metadata_enum_acamera_control_ae_precapture_trigger {
-    /**
-     * <p>The trigger is idle.</p>
-     */
-    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_IDLE                       = 0,
-
-    /**
-     * <p>The precapture metering sequence will be started
-     * by the camera device.</p>
-     * <p>The exact effect of the precapture trigger depends on
-     * the current AE mode and state.</p>
-     */
-    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_START                      = 1,
-
-    /**
-     * <p>The camera device will cancel any currently active or completed
-     * precapture metering sequence, the auto-exposure routine will return to its
-     * initial state.</p>
-     */
-    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL                     = 2,
-
-} acamera_metadata_enum_android_control_ae_precapture_trigger_t;
-
-// ACAMERA_CONTROL_AF_MODE
-typedef enum acamera_metadata_enum_acamera_control_af_mode {
-    /**
-     * <p>The auto-focus routine does not control the lens;
-     * ACAMERA_LENS_FOCUS_DISTANCE is controlled by the
-     * application.</p>
-     *
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     */
-    ACAMERA_CONTROL_AF_MODE_OFF                                      = 0,
-
-    /**
-     * <p>Basic automatic focus mode.</p>
-     * <p>In this mode, the lens does not move unless
-     * the autofocus trigger action is called. When that trigger
-     * is activated, AF will transition to ACTIVE_SCAN, then to
-     * the outcome of the scan (FOCUSED or NOT_FOCUSED).</p>
-     * <p>Always supported if lens is not fixed focus.</p>
-     * <p>Use ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE to determine if lens
-     * is fixed-focus.</p>
-     * <p>Triggering AF_CANCEL resets the lens position to default,
-     * and sets the AF state to INACTIVE.</p>
-     *
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_CONTROL_AF_MODE_AUTO                                     = 1,
-
-    /**
-     * <p>Close-up focusing mode.</p>
-     * <p>In this mode, the lens does not move unless the
-     * autofocus trigger action is called. When that trigger is
-     * activated, AF will transition to ACTIVE_SCAN, then to
-     * the outcome of the scan (FOCUSED or NOT_FOCUSED). This
-     * mode is optimized for focusing on objects very close to
-     * the camera.</p>
-     * <p>When that trigger is activated, AF will transition to
-     * ACTIVE_SCAN, then to the outcome of the scan (FOCUSED or
-     * NOT_FOCUSED). Triggering cancel AF resets the lens
-     * position to default, and sets the AF state to
-     * INACTIVE.</p>
-     */
-    ACAMERA_CONTROL_AF_MODE_MACRO                                    = 2,
-
-    /**
-     * <p>In this mode, the AF algorithm modifies the lens
-     * position continually to attempt to provide a
-     * constantly-in-focus image stream.</p>
-     * <p>The focusing behavior should be suitable for good quality
-     * video recording; typically this means slower focus
-     * movement and no overshoots. When the AF trigger is not
-     * involved, the AF algorithm should start in INACTIVE state,
-     * and then transition into PASSIVE_SCAN and PASSIVE_FOCUSED
-     * states as appropriate. When the AF trigger is activated,
-     * the algorithm should immediately transition into
-     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
-     * lens position until a cancel AF trigger is received.</p>
-     * <p>Once cancel is received, the algorithm should transition
-     * back to INACTIVE and resume passive scan. Note that this
-     * behavior is not identical to CONTINUOUS_PICTURE, since an
-     * ongoing PASSIVE_SCAN must immediately be
-     * canceled.</p>
-     */
-    ACAMERA_CONTROL_AF_MODE_CONTINUOUS_VIDEO                         = 3,
-
-    /**
-     * <p>In this mode, the AF algorithm modifies the lens
-     * position continually to attempt to provide a
-     * constantly-in-focus image stream.</p>
-     * <p>The focusing behavior should be suitable for still image
-     * capture; typically this means focusing as fast as
-     * possible. When the AF trigger is not involved, the AF
-     * algorithm should start in INACTIVE state, and then
-     * transition into PASSIVE_SCAN and PASSIVE_FOCUSED states as
-     * appropriate as it attempts to maintain focus. When the AF
-     * trigger is activated, the algorithm should finish its
-     * PASSIVE_SCAN if active, and then transition into
-     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
-     * lens position until a cancel AF trigger is received.</p>
-     * <p>When the AF cancel trigger is activated, the algorithm
-     * should transition back to INACTIVE and then act as if it
-     * has just been started.</p>
-     */
-    ACAMERA_CONTROL_AF_MODE_CONTINUOUS_PICTURE                       = 4,
-
-    /**
-     * <p>Extended depth of field (digital focus) mode.</p>
-     * <p>The camera device will produce images with an extended
-     * depth of field automatically; no special focusing
-     * operations need to be done before taking a picture.</p>
-     * <p>AF triggers are ignored, and the AF state will always be
-     * INACTIVE.</p>
-     */
-    ACAMERA_CONTROL_AF_MODE_EDOF                                     = 5,
-
-} acamera_metadata_enum_android_control_af_mode_t;
-
-// ACAMERA_CONTROL_AF_TRIGGER
-typedef enum acamera_metadata_enum_acamera_control_af_trigger {
-    /**
-     * <p>The trigger is idle.</p>
-     */
-    ACAMERA_CONTROL_AF_TRIGGER_IDLE                                  = 0,
-
-    /**
-     * <p>Autofocus will trigger now.</p>
-     */
-    ACAMERA_CONTROL_AF_TRIGGER_START                                 = 1,
-
-    /**
-     * <p>Autofocus will return to its initial
-     * state, and cancel any currently active trigger.</p>
-     */
-    ACAMERA_CONTROL_AF_TRIGGER_CANCEL                                = 2,
-
-} acamera_metadata_enum_android_control_af_trigger_t;
-
-// ACAMERA_CONTROL_AWB_LOCK
-typedef enum acamera_metadata_enum_acamera_control_awb_lock {
-    /**
-     * <p>Auto-white balance lock is disabled; the AWB
-     * algorithm is free to update its parameters if in AUTO
-     * mode.</p>
-     */
-    ACAMERA_CONTROL_AWB_LOCK_OFF                                     = 0,
-
-    /**
-     * <p>Auto-white balance lock is enabled; the AWB
-     * algorithm will not update its parameters while the lock
-     * is active.</p>
-     */
-    ACAMERA_CONTROL_AWB_LOCK_ON                                      = 1,
-
-} acamera_metadata_enum_android_control_awb_lock_t;
-
-// ACAMERA_CONTROL_AWB_MODE
-typedef enum acamera_metadata_enum_acamera_control_awb_mode {
-    /**
-     * <p>The camera device's auto-white balance routine is disabled.</p>
-     * <p>The application-selected color transform matrix
-     * (ACAMERA_COLOR_CORRECTION_TRANSFORM) and gains
-     * (ACAMERA_COLOR_CORRECTION_GAINS) are used by the camera
-     * device for manual white balance control.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_OFF                                     = 0,
-
-    /**
-     * <p>The camera device's auto-white balance routine is active.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_AUTO                                    = 1,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses incandescent light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>While the exact white balance transforms are up to the
-     * camera device, they will approximately match the CIE
-     * standard illuminant A.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_INCANDESCENT                            = 2,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses fluorescent light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>While the exact white balance transforms are up to the
-     * camera device, they will approximately match the CIE
-     * standard illuminant F2.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_FLUORESCENT                             = 3,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses warm fluorescent light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>While the exact white balance transforms are up to the
-     * camera device, they will approximately match the CIE
-     * standard illuminant F4.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_WARM_FLUORESCENT                        = 4,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses daylight light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>While the exact white balance transforms are up to the
-     * camera device, they will approximately match the CIE
-     * standard illuminant D65.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_DAYLIGHT                                = 5,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses cloudy daylight light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_CLOUDY_DAYLIGHT                         = 6,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses twilight light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_TWILIGHT                                = 7,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses shade light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_SHADE                                   = 8,
-
-} acamera_metadata_enum_android_control_awb_mode_t;
-
-// ACAMERA_CONTROL_CAPTURE_INTENT
-typedef enum acamera_metadata_enum_acamera_control_capture_intent {
-    /**
-     * <p>The goal of this request doesn't fall into the other
-     * categories. The camera device will default to preview-like
-     * behavior.</p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_CUSTOM                            = 0,
-
-    /**
-     * <p>This request is for a preview-like use case.</p>
-     * <p>The precapture trigger may be used to start off a metering
-     * w/flash sequence.</p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_PREVIEW                           = 1,
-
-    /**
-     * <p>This request is for a still capture-type
-     * use case.</p>
-     * <p>If the flash unit is under automatic control, it may fire as needed.</p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_STILL_CAPTURE                     = 2,
-
-    /**
-     * <p>This request is for a video recording
-     * use case.</p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_VIDEO_RECORD                      = 3,
-
-    /**
-     * <p>This request is for a video snapshot (still
-     * image while recording video) use case.</p>
-     * <p>The camera device should take the highest-quality image
-     * possible (given the other settings) without disrupting the
-     * frame rate of video recording.  </p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT                    = 4,
-
-    /**
-     * <p>This request is for a ZSL usecase; the
-     * application will stream full-resolution images and
-     * reprocess one or several later for a final
-     * capture.</p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG                  = 5,
-
-    /**
-     * <p>This request is for manual capture use case where
-     * the applications want to directly control the capture parameters.</p>
-     * <p>For example, the application may wish to manually control
-     * ACAMERA_SENSOR_EXPOSURE_TIME, ACAMERA_SENSOR_SENSITIVITY, etc.</p>
-     *
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_MANUAL                            = 6,
-
-} acamera_metadata_enum_android_control_capture_intent_t;
-
-// ACAMERA_CONTROL_EFFECT_MODE
-typedef enum acamera_metadata_enum_acamera_control_effect_mode {
-    /**
-     * <p>No color effect will be applied.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_OFF                                  = 0,
-
-    /**
-     * <p>A "monocolor" effect where the image is mapped into
-     * a single color.</p>
-     * <p>This will typically be grayscale.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_MONO                                 = 1,
-
-    /**
-     * <p>A "photo-negative" effect where the image's colors
-     * are inverted.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_NEGATIVE                             = 2,
-
-    /**
-     * <p>A "solarisation" effect (Sabattier effect) where the
-     * image is wholly or partially reversed in
-     * tone.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_SOLARIZE                             = 3,
-
-    /**
-     * <p>A "sepia" effect where the image is mapped into warm
-     * gray, red, and brown tones.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_SEPIA                                = 4,
-
-    /**
-     * <p>A "posterization" effect where the image uses
-     * discrete regions of tone rather than a continuous
-     * gradient of tones.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_POSTERIZE                            = 5,
-
-    /**
-     * <p>A "whiteboard" effect where the image is typically displayed
-     * as regions of white, with black or grey details.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_WHITEBOARD                           = 6,
-
-    /**
-     * <p>A "blackboard" effect where the image is typically displayed
-     * as regions of black, with white or grey details.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_BLACKBOARD                           = 7,
-
-    /**
-     * <p>An "aqua" effect where a blue hue is added to the image.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_AQUA                                 = 8,
-
-} acamera_metadata_enum_android_control_effect_mode_t;
-
-// ACAMERA_CONTROL_MODE
-typedef enum acamera_metadata_enum_acamera_control_mode {
-    /**
-     * <p>Full application control of pipeline.</p>
-     * <p>All control by the device's metering and focusing (3A)
-     * routines is disabled, and no other settings in
-     * ACAMERA_CONTROL_* have any effect, except that
-     * ACAMERA_CONTROL_CAPTURE_INTENT may be used by the camera
-     * device to select post-processing values for processing
-     * blocks that do not allow for manual control, or are not
-     * exposed by the camera API.</p>
-     * <p>However, the camera device's 3A routines may continue to
-     * collect statistics and update their internal state so that
-     * when control is switched to AUTO mode, good control values
-     * can be immediately applied.</p>
-     *
-     * @see ACAMERA_CONTROL_CAPTURE_INTENT
-     */
-    ACAMERA_CONTROL_MODE_OFF                                         = 0,
-
-    /**
-     * <p>Use settings for each individual 3A routine.</p>
-     * <p>Manual control of capture parameters is disabled. All
-     * controls in ACAMERA_CONTROL_* besides sceneMode take
-     * effect.</p>
-     */
-    ACAMERA_CONTROL_MODE_AUTO                                        = 1,
-
-    /**
-     * <p>Use a specific scene mode.</p>
-     * <p>Enabling this disables control.aeMode, control.awbMode and
-     * control.afMode controls; the camera device will ignore
-     * those settings while USE_SCENE_MODE is active (except for
-     * FACE_PRIORITY scene mode). Other control entries are still active.
-     * This setting can only be used if scene mode is supported (i.e.
-     * ACAMERA_CONTROL_AVAILABLE_SCENE_MODES
-     * contain some modes other than DISABLED).</p>
-     *
-     * @see ACAMERA_CONTROL_AVAILABLE_SCENE_MODES
-     */
-    ACAMERA_CONTROL_MODE_USE_SCENE_MODE                              = 2,
-
-    /**
-     * <p>Same as OFF mode, except that this capture will not be
-     * used by camera device background auto-exposure, auto-white balance and
-     * auto-focus algorithms (3A) to update their statistics.</p>
-     * <p>Specifically, the 3A routines are locked to the last
-     * values set from a request with AUTO, OFF, or
-     * USE_SCENE_MODE, and any statistics or state updates
-     * collected from manual captures with OFF_KEEP_STATE will be
-     * discarded by the camera device.</p>
-     */
-    ACAMERA_CONTROL_MODE_OFF_KEEP_STATE                              = 3,
-
-} acamera_metadata_enum_android_control_mode_t;
-
-// ACAMERA_CONTROL_SCENE_MODE
-typedef enum acamera_metadata_enum_acamera_control_scene_mode {
-    /**
-     * <p>Indicates that no scene modes are set for a given capture request.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_DISABLED                              = 0,
-
-    /**
-     * <p>If face detection support exists, use face
-     * detection data for auto-focus, auto-white balance, and
-     * auto-exposure routines.</p>
-     * <p>If face detection statistics are disabled
-     * (i.e. ACAMERA_STATISTICS_FACE_DETECT_MODE is set to OFF),
-     * this should still operate correctly (but will not return
-     * face detection statistics to the framework).</p>
-     * <p>Unlike the other scene modes, ACAMERA_CONTROL_AE_MODE,
-     * ACAMERA_CONTROL_AWB_MODE, and ACAMERA_CONTROL_AF_MODE
-     * remain active when FACE_PRIORITY is set.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     */
-    ACAMERA_CONTROL_SCENE_MODE_FACE_PRIORITY                         = 1,
-
-    /**
-     * <p>Optimized for photos of quickly moving objects.</p>
-     * <p>Similar to SPORTS.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_ACTION                                = 2,
-
-    /**
-     * <p>Optimized for still photos of people.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_PORTRAIT                              = 3,
-
-    /**
-     * <p>Optimized for photos of distant macroscopic objects.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_LANDSCAPE                             = 4,
-
-    /**
-     * <p>Optimized for low-light settings.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_NIGHT                                 = 5,
-
-    /**
-     * <p>Optimized for still photos of people in low-light
-     * settings.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_NIGHT_PORTRAIT                        = 6,
-
-    /**
-     * <p>Optimized for dim, indoor settings where flash must
-     * remain off.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_THEATRE                               = 7,
-
-    /**
-     * <p>Optimized for bright, outdoor beach settings.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_BEACH                                 = 8,
-
-    /**
-     * <p>Optimized for bright, outdoor settings containing snow.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_SNOW                                  = 9,
-
-    /**
-     * <p>Optimized for scenes of the setting sun.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_SUNSET                                = 10,
-
-    /**
-     * <p>Optimized to avoid blurry photos due to small amounts of
-     * device motion (for example: due to hand shake).</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_STEADYPHOTO                           = 11,
-
-    /**
-     * <p>Optimized for nighttime photos of fireworks.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_FIREWORKS                             = 12,
-
-    /**
-     * <p>Optimized for photos of quickly moving people.</p>
-     * <p>Similar to ACTION.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_SPORTS                                = 13,
-
-    /**
-     * <p>Optimized for dim, indoor settings with multiple moving
-     * people.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_PARTY                                 = 14,
-
-    /**
-     * <p>Optimized for dim settings where the main light source
-     * is a flame.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_CANDLELIGHT                           = 15,
-
-    /**
-     * <p>Optimized for accurately capturing a photo of barcode
-     * for use by camera applications that wish to read the
-     * barcode value.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_BARCODE                               = 16,
-
-    /**
-     * <p>Turn on a device-specific high dynamic range (HDR) mode.</p>
-     * <p>In this scene mode, the camera device captures images
-     * that keep a larger range of scene illumination levels
-     * visible in the final image. For example, when taking a
-     * picture of a object in front of a bright window, both
-     * the object and the scene through the window may be
-     * visible when using HDR mode, while in normal AUTO mode,
-     * one or the other may be poorly exposed. As a tradeoff,
-     * HDR mode generally takes much longer to capture a single
-     * image, has no user control, and may have other artifacts
-     * depending on the HDR method used.</p>
-     * <p>Therefore, HDR captures operate at a much slower rate
-     * than regular captures.</p>
-     * <p>In this mode, on LIMITED or FULL devices, when a request
-     * is made with a ACAMERA_CONTROL_CAPTURE_INTENT of
-     * STILL_CAPTURE, the camera device will capture an image
-     * using a high dynamic range capture technique.  On LEGACY
-     * devices, captures that target a JPEG-format output will
-     * be captured with HDR, and the capture intent is not
-     * relevant.</p>
-     * <p>The HDR capture may involve the device capturing a burst
-     * of images internally and combining them into one, or it
-     * may involve the device using specialized high dynamic
-     * range capture hardware. In all cases, a single image is
-     * produced in response to a capture request submitted
-     * while in HDR mode.</p>
-     * <p>Since substantial post-processing is generally needed to
-     * produce an HDR image, only YUV, PRIVATE, and JPEG
-     * outputs are supported for LIMITED/FULL device HDR
-     * captures, and only JPEG outputs are supported for LEGACY
-     * HDR captures. Using a RAW output for HDR capture is not
-     * supported.</p>
-     * <p>Some devices may also support always-on HDR, which
-     * applies HDR processing at full frame rate.  For these
-     * devices, intents other than STILL_CAPTURE will also
-     * produce an HDR output with no frame rate impact compared
-     * to normal operation, though the quality may be lower
-     * than for STILL_CAPTURE intents.</p>
-     * <p>If SCENE_MODE_HDR is used with unsupported output types
-     * or capture intents, the images captured will be as if
-     * the SCENE_MODE was not enabled at all.</p>
-     *
-     * @see ACAMERA_CONTROL_CAPTURE_INTENT
-     */
-    ACAMERA_CONTROL_SCENE_MODE_HDR                                   = 18,
-
-} acamera_metadata_enum_android_control_scene_mode_t;
-
-// ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
-typedef enum acamera_metadata_enum_acamera_control_video_stabilization_mode {
-    /**
-     * <p>Video stabilization is disabled.</p>
-     */
-    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE_OFF                     = 0,
-
-    /**
-     * <p>Video stabilization is enabled.</p>
-     */
-    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE_ON                      = 1,
-
-} acamera_metadata_enum_android_control_video_stabilization_mode_t;
-
-// ACAMERA_CONTROL_AE_STATE
-typedef enum acamera_metadata_enum_acamera_control_ae_state {
-    /**
-     * <p>AE is off or recently reset.</p>
-     * <p>When a camera device is opened, it starts in
-     * this state. This is a transient state, the camera device may skip reporting
-     * this state in capture result.</p>
-     */
-    ACAMERA_CONTROL_AE_STATE_INACTIVE                                = 0,
-
-    /**
-     * <p>AE doesn't yet have a good set of control values
-     * for the current scene.</p>
-     * <p>This is a transient state, the camera device may skip
-     * reporting this state in capture result.</p>
-     */
-    ACAMERA_CONTROL_AE_STATE_SEARCHING                               = 1,
-
-    /**
-     * <p>AE has a good set of control values for the
-     * current scene.</p>
-     */
-    ACAMERA_CONTROL_AE_STATE_CONVERGED                               = 2,
-
-    /**
-     * <p>AE has been locked.</p>
-     */
-    ACAMERA_CONTROL_AE_STATE_LOCKED                                  = 3,
-
-    /**
-     * <p>AE has a good set of control values, but flash
-     * needs to be fired for good quality still
-     * capture.</p>
-     */
-    ACAMERA_CONTROL_AE_STATE_FLASH_REQUIRED                          = 4,
-
-    /**
-     * <p>AE has been asked to do a precapture sequence
-     * and is currently executing it.</p>
-     * <p>Precapture can be triggered through setting
-     * ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER to START. Currently
-     * active and completed (if it causes camera device internal AE lock) precapture
-     * metering sequence can be canceled through setting
-     * ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER to CANCEL.</p>
-     * <p>Once PRECAPTURE completes, AE will transition to CONVERGED
-     * or FLASH_REQUIRED as appropriate. This is a transient
-     * state, the camera device may skip reporting this state in
-     * capture result.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     */
-    ACAMERA_CONTROL_AE_STATE_PRECAPTURE                              = 5,
-
-} acamera_metadata_enum_android_control_ae_state_t;
-
-// ACAMERA_CONTROL_AF_STATE
-typedef enum acamera_metadata_enum_acamera_control_af_state {
-    /**
-     * <p>AF is off or has not yet tried to scan/been asked
-     * to scan.</p>
-     * <p>When a camera device is opened, it starts in this
-     * state. This is a transient state, the camera device may
-     * skip reporting this state in capture
-     * result.</p>
-     */
-    ACAMERA_CONTROL_AF_STATE_INACTIVE                                = 0,
-
-    /**
-     * <p>AF is currently performing an AF scan initiated the
-     * camera device in a continuous autofocus mode.</p>
-     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
-     * state, the camera device may skip reporting this state in
-     * capture result.</p>
-     */
-    ACAMERA_CONTROL_AF_STATE_PASSIVE_SCAN                            = 1,
-
-    /**
-     * <p>AF currently believes it is in focus, but may
-     * restart scanning at any time.</p>
-     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
-     * state, the camera device may skip reporting this state in
-     * capture result.</p>
-     */
-    ACAMERA_CONTROL_AF_STATE_PASSIVE_FOCUSED                         = 2,
-
-    /**
-     * <p>AF is performing an AF scan because it was
-     * triggered by AF trigger.</p>
-     * <p>Only used by AUTO or MACRO AF modes. This is a transient
-     * state, the camera device may skip reporting this state in
-     * capture result.</p>
-     */
-    ACAMERA_CONTROL_AF_STATE_ACTIVE_SCAN                             = 3,
-
-    /**
-     * <p>AF believes it is focused correctly and has locked
-     * focus.</p>
-     * <p>This state is reached only after an explicit START AF trigger has been
-     * sent (ACAMERA_CONTROL_AF_TRIGGER), when good focus has been obtained.</p>
-     * <p>The lens will remain stationary until the AF mode (ACAMERA_CONTROL_AF_MODE) is changed or
-     * a new AF trigger is sent to the camera device (ACAMERA_CONTROL_AF_TRIGGER).</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AF_TRIGGER
-     */
-    ACAMERA_CONTROL_AF_STATE_FOCUSED_LOCKED                          = 4,
-
-    /**
-     * <p>AF has failed to focus successfully and has locked
-     * focus.</p>
-     * <p>This state is reached only after an explicit START AF trigger has been
-     * sent (ACAMERA_CONTROL_AF_TRIGGER), when good focus cannot be obtained.</p>
-     * <p>The lens will remain stationary until the AF mode (ACAMERA_CONTROL_AF_MODE) is changed or
-     * a new AF trigger is sent to the camera device (ACAMERA_CONTROL_AF_TRIGGER).</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AF_TRIGGER
-     */
-    ACAMERA_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED                      = 5,
-
-    /**
-     * <p>AF finished a passive scan without finding focus,
-     * and may restart scanning at any time.</p>
-     * <p>Only used by CONTINUOUS_* AF modes. This is a transient state, the camera
-     * device may skip reporting this state in capture result.</p>
-     * <p>LEGACY camera devices do not support this state. When a passive
-     * scan has finished, it will always go to PASSIVE_FOCUSED.</p>
-     */
-    ACAMERA_CONTROL_AF_STATE_PASSIVE_UNFOCUSED                       = 6,
-
-} acamera_metadata_enum_android_control_af_state_t;
-
-// ACAMERA_CONTROL_AWB_STATE
-typedef enum acamera_metadata_enum_acamera_control_awb_state {
-    /**
-     * <p>AWB is not in auto mode, or has not yet started metering.</p>
-     * <p>When a camera device is opened, it starts in this
-     * state. This is a transient state, the camera device may
-     * skip reporting this state in capture
-     * result.</p>
-     */
-    ACAMERA_CONTROL_AWB_STATE_INACTIVE                               = 0,
-
-    /**
-     * <p>AWB doesn't yet have a good set of control
-     * values for the current scene.</p>
-     * <p>This is a transient state, the camera device
-     * may skip reporting this state in capture result.</p>
-     */
-    ACAMERA_CONTROL_AWB_STATE_SEARCHING                              = 1,
-
-    /**
-     * <p>AWB has a good set of control values for the
-     * current scene.</p>
-     */
-    ACAMERA_CONTROL_AWB_STATE_CONVERGED                              = 2,
-
-    /**
-     * <p>AWB has been locked.</p>
-     */
-    ACAMERA_CONTROL_AWB_STATE_LOCKED                                 = 3,
-
-} acamera_metadata_enum_android_control_awb_state_t;
-
-// ACAMERA_CONTROL_AE_LOCK_AVAILABLE
-typedef enum acamera_metadata_enum_acamera_control_ae_lock_available {
-    ACAMERA_CONTROL_AE_LOCK_AVAILABLE_FALSE                          = 0,
-
-    ACAMERA_CONTROL_AE_LOCK_AVAILABLE_TRUE                           = 1,
-
-} acamera_metadata_enum_android_control_ae_lock_available_t;
-
-// ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
-typedef enum acamera_metadata_enum_acamera_control_awb_lock_available {
-    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE_FALSE                         = 0,
-
-    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE_TRUE                          = 1,
-
-} acamera_metadata_enum_android_control_awb_lock_available_t;
-
-
-
-// ACAMERA_EDGE_MODE
-typedef enum acamera_metadata_enum_acamera_edge_mode {
-    /**
-     * <p>No edge enhancement is applied.</p>
-     */
-    ACAMERA_EDGE_MODE_OFF                                            = 0,
-
-    /**
-     * <p>Apply edge enhancement at a quality level that does not slow down frame rate
-     * relative to sensor output. It may be the same as OFF if edge enhancement will
-     * slow down frame rate relative to sensor.</p>
-     */
-    ACAMERA_EDGE_MODE_FAST                                           = 1,
-
-    /**
-     * <p>Apply high-quality edge enhancement, at a cost of possibly reduced output frame rate.</p>
-     */
-    ACAMERA_EDGE_MODE_HIGH_QUALITY                                   = 2,
-
-    /**
-     * <p>Edge enhancement is applied at different levels for different output streams,
-     * based on resolution. Streams at maximum recording resolution (see {@link
-     * ACameraDevice_createCaptureSession}) or below have
-     * edge enhancement applied, while higher-resolution streams have no edge enhancement
-     * applied. The level of edge enhancement for low-resolution streams is tuned so that
-     * frame rate is not impacted, and the quality is equal to or better than FAST (since it
-     * is only applied to lower-resolution outputs, quality may improve from FAST).</p>
-     * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
-     * with YUV or PRIVATE reprocessing, where the application continuously captures
-     * high-resolution intermediate buffers into a circular buffer, from which a final image is
-     * produced via reprocessing when a user takes a picture.  For such a use case, the
-     * high-resolution buffers must not have edge enhancement applied to maximize efficiency of
-     * preview and to avoid double-applying enhancement when reprocessed, while low-resolution
-     * buffers (used for recording or preview, generally) need edge enhancement applied for
-     * reasonable preview quality.</p>
-     * <p>This mode is guaranteed to be supported by devices that support either the
-     * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
-     * (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES lists either of those capabilities) and it will
-     * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_EDGE_MODE_ZERO_SHUTTER_LAG                               = 3,
-
-} acamera_metadata_enum_android_edge_mode_t;
-
-
-// ACAMERA_FLASH_MODE
-typedef enum acamera_metadata_enum_acamera_flash_mode {
-    /**
-     * <p>Do not fire the flash for this capture.</p>
-     */
-    ACAMERA_FLASH_MODE_OFF                                           = 0,
-
-    /**
-     * <p>If the flash is available and charged, fire flash
-     * for this capture.</p>
-     */
-    ACAMERA_FLASH_MODE_SINGLE                                        = 1,
-
-    /**
-     * <p>Transition flash to continuously on.</p>
-     */
-    ACAMERA_FLASH_MODE_TORCH                                         = 2,
-
-} acamera_metadata_enum_android_flash_mode_t;
-
-// ACAMERA_FLASH_STATE
-typedef enum acamera_metadata_enum_acamera_flash_state {
-    /**
-     * <p>No flash on camera.</p>
-     */
-    ACAMERA_FLASH_STATE_UNAVAILABLE                                  = 0,
-
-    /**
-     * <p>Flash is charging and cannot be fired.</p>
-     */
-    ACAMERA_FLASH_STATE_CHARGING                                     = 1,
-
-    /**
-     * <p>Flash is ready to fire.</p>
-     */
-    ACAMERA_FLASH_STATE_READY                                        = 2,
-
-    /**
-     * <p>Flash fired for this capture.</p>
-     */
-    ACAMERA_FLASH_STATE_FIRED                                        = 3,
-
-    /**
-     * <p>Flash partially illuminated this frame.</p>
-     * <p>This is usually due to the next or previous frame having
-     * the flash fire, and the flash spilling into this capture
-     * due to hardware limitations.</p>
-     */
-    ACAMERA_FLASH_STATE_PARTIAL                                      = 4,
-
-} acamera_metadata_enum_android_flash_state_t;
-
-
-// ACAMERA_FLASH_INFO_AVAILABLE
-typedef enum acamera_metadata_enum_acamera_flash_info_available {
-    ACAMERA_FLASH_INFO_AVAILABLE_FALSE                               = 0,
-
-    ACAMERA_FLASH_INFO_AVAILABLE_TRUE                                = 1,
-
-} acamera_metadata_enum_android_flash_info_available_t;
-
-
-// ACAMERA_HOT_PIXEL_MODE
-typedef enum acamera_metadata_enum_acamera_hot_pixel_mode {
-    /**
-     * <p>No hot pixel correction is applied.</p>
-     * <p>The frame rate must not be reduced relative to sensor raw output
-     * for this option.</p>
-     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
-     *
-     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
-     */
-    ACAMERA_HOT_PIXEL_MODE_OFF                                       = 0,
-
-    /**
-     * <p>Hot pixel correction is applied, without reducing frame
-     * rate relative to sensor raw output.</p>
-     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
-     *
-     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
-     */
-    ACAMERA_HOT_PIXEL_MODE_FAST                                      = 1,
-
-    /**
-     * <p>High-quality hot pixel correction is applied, at a cost
-     * of possibly reduced frame rate relative to sensor raw output.</p>
-     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
-     *
-     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
-     */
-    ACAMERA_HOT_PIXEL_MODE_HIGH_QUALITY                              = 2,
-
-} acamera_metadata_enum_android_hot_pixel_mode_t;
-
-
-
-// ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
-typedef enum acamera_metadata_enum_acamera_lens_optical_stabilization_mode {
-    /**
-     * <p>Optical stabilization is unavailable.</p>
-     */
-    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE_OFF                      = 0,
-
-    /**
-     * <p>Optical stabilization is enabled.</p>
-     */
-    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE_ON                       = 1,
-
-} acamera_metadata_enum_android_lens_optical_stabilization_mode_t;
-
-// ACAMERA_LENS_FACING
-typedef enum acamera_metadata_enum_acamera_lens_facing {
-    /**
-     * <p>The camera device faces the same direction as the device's screen.</p>
-     */
-    ACAMERA_LENS_FACING_FRONT                                        = 0,
-
-    /**
-     * <p>The camera device faces the opposite direction as the device's screen.</p>
-     */
-    ACAMERA_LENS_FACING_BACK                                         = 1,
-
-    /**
-     * <p>The camera device is an external camera, and has no fixed facing relative to the
-     * device's screen.</p>
-     */
-    ACAMERA_LENS_FACING_EXTERNAL                                     = 2,
-
-} acamera_metadata_enum_android_lens_facing_t;
-
-// ACAMERA_LENS_STATE
-typedef enum acamera_metadata_enum_acamera_lens_state {
-    /**
-     * <p>The lens parameters (ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
-     * ACAMERA_LENS_FILTER_DENSITY and ACAMERA_LENS_APERTURE) are not changing.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     * @see ACAMERA_LENS_FILTER_DENSITY
-     * @see ACAMERA_LENS_FOCAL_LENGTH
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     */
-    ACAMERA_LENS_STATE_STATIONARY                                    = 0,
-
-    /**
-     * <p>One or several of the lens parameters
-     * (ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
-     * ACAMERA_LENS_FILTER_DENSITY or ACAMERA_LENS_APERTURE) is
-     * currently changing.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     * @see ACAMERA_LENS_FILTER_DENSITY
-     * @see ACAMERA_LENS_FOCAL_LENGTH
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     */
-    ACAMERA_LENS_STATE_MOVING                                        = 1,
-
-} acamera_metadata_enum_android_lens_state_t;
-
-
-// ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
-typedef enum acamera_metadata_enum_acamera_lens_info_focus_distance_calibration {
-    /**
-     * <p>The lens focus distance is not accurate, and the units used for
-     * ACAMERA_LENS_FOCUS_DISTANCE do not correspond to any physical units.</p>
-     * <p>Setting the lens to the same focus distance on separate occasions may
-     * result in a different real focus distance, depending on factors such
-     * as the orientation of the device, the age of the focusing mechanism,
-     * and the device temperature. The focus distance value will still be
-     * in the range of <code>[0, ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE]</code>, where 0
-     * represents the farthest focus.</p>
-     *
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED        = 0,
-
-    /**
-     * <p>The lens focus distance is measured in diopters.</p>
-     * <p>However, setting the lens to the same focus distance
-     * on separate occasions may result in a different real
-     * focus distance, depending on factors such as the
-     * orientation of the device, the age of the focusing
-     * mechanism, and the device temperature.</p>
-     */
-    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_APPROXIMATE         = 1,
-
-    /**
-     * <p>The lens focus distance is measured in diopters, and
-     * is calibrated.</p>
-     * <p>The lens mechanism is calibrated so that setting the
-     * same focus distance is repeatable on multiple
-     * occasions with good accuracy, and the focus distance
-     * corresponds to the real physical distance to the plane
-     * of best focus.</p>
-     */
-    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED          = 2,
-
-} acamera_metadata_enum_android_lens_info_focus_distance_calibration_t;
-
-
-// ACAMERA_NOISE_REDUCTION_MODE
-typedef enum acamera_metadata_enum_acamera_noise_reduction_mode {
-    /**
-     * <p>No noise reduction is applied.</p>
-     */
-    ACAMERA_NOISE_REDUCTION_MODE_OFF                                 = 0,
-
-    /**
-     * <p>Noise reduction is applied without reducing frame rate relative to sensor
-     * output. It may be the same as OFF if noise reduction will reduce frame rate
-     * relative to sensor.</p>
-     */
-    ACAMERA_NOISE_REDUCTION_MODE_FAST                                = 1,
-
-    /**
-     * <p>High-quality noise reduction is applied, at the cost of possibly reduced frame
-     * rate relative to sensor output.</p>
-     */
-    ACAMERA_NOISE_REDUCTION_MODE_HIGH_QUALITY                        = 2,
-
-    /**
-     * <p>MINIMAL noise reduction is applied without reducing frame rate relative to
-     * sensor output. </p>
-     */
-    ACAMERA_NOISE_REDUCTION_MODE_MINIMAL                             = 3,
-
-    /**
-     * <p>Noise reduction is applied at different levels for different output streams,
-     * based on resolution. Streams at maximum recording resolution (see {@link
-     * ACameraDevice_createCaptureSession}) or below have noise
-     * reduction applied, while higher-resolution streams have MINIMAL (if supported) or no
-     * noise reduction applied (if MINIMAL is not supported.) The degree of noise reduction
-     * for low-resolution streams is tuned so that frame rate is not impacted, and the quality
-     * is equal to or better than FAST (since it is only applied to lower-resolution outputs,
-     * quality may improve from FAST).</p>
-     * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
-     * with YUV or PRIVATE reprocessing, where the application continuously captures
-     * high-resolution intermediate buffers into a circular buffer, from which a final image is
-     * produced via reprocessing when a user takes a picture.  For such a use case, the
-     * high-resolution buffers must not have noise reduction applied to maximize efficiency of
-     * preview and to avoid over-applying noise filtering when reprocessing, while
-     * low-resolution buffers (used for recording or preview, generally) need noise reduction
-     * applied for reasonable preview quality.</p>
-     * <p>This mode is guaranteed to be supported by devices that support either the
-     * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
-     * (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES lists either of those capabilities) and it will
-     * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG                    = 4,
-
-} acamera_metadata_enum_android_noise_reduction_mode_t;
-
-
-
-// ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-typedef enum acamera_metadata_enum_acamera_request_available_capabilities {
-    /**
-     * <p>The minimal set of capabilities that every camera
-     * device (regardless of ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL)
-     * supports.</p>
-     * <p>This capability is listed by all normal devices, and
-     * indicates that the camera device has a feature set
-     * that's comparable to the baseline requirements for the
-     * older android.hardware.Camera API.</p>
-     * <p>Devices with the DEPTH_OUTPUT capability might not list this
-     * capability, indicating that they support only depth measurement,
-     * not standard color output.</p>
-     *
-     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE       = 0,
-
-    /**
-     * <p>The camera device can be manually controlled (3A algorithms such
-     * as auto-exposure, and auto-focus can be bypassed).
-     * The camera device supports basic manual control of the sensor image
-     * acquisition related stages. This means the following controls are
-     * guaranteed to be supported:</p>
-     * <ul>
-     * <li>Manual frame duration control<ul>
-     * <li>ACAMERA_SENSOR_FRAME_DURATION</li>
-     * <li>ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION</li>
-     * </ul>
-     * </li>
-     * <li>Manual exposure control<ul>
-     * <li>ACAMERA_SENSOR_EXPOSURE_TIME</li>
-     * <li>ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE</li>
-     * </ul>
-     * </li>
-     * <li>Manual sensitivity control<ul>
-     * <li>ACAMERA_SENSOR_SENSITIVITY</li>
-     * <li>ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE</li>
-     * </ul>
-     * </li>
-     * <li>Manual lens control (if the lens is adjustable)<ul>
-     * <li>ACAMERA_LENS_*</li>
-     * </ul>
-     * </li>
-     * <li>Manual flash control (if a flash unit is present)<ul>
-     * <li>ACAMERA_FLASH_*</li>
-     * </ul>
-     * </li>
-     * <li>Manual black level locking<ul>
-     * <li>ACAMERA_BLACK_LEVEL_LOCK</li>
-     * </ul>
-     * </li>
-     * <li>Auto exposure lock<ul>
-     * <li>ACAMERA_CONTROL_AE_LOCK</li>
-     * </ul>
-     * </li>
-     * </ul>
-     * <p>If any of the above 3A algorithms are enabled, then the camera
-     * device will accurately report the values applied by 3A in the
-     * result.</p>
-     * <p>A given camera device may also support additional manual sensor controls,
-     * but this capability only covers the above list of controls.</p>
-     * <p>If this is supported, android.scaler.streamConfigurationMap will
-     * additionally return a min frame duration that is greater than
-     * zero for each supported size-format combination.</p>
-     *
-     * @see ACAMERA_BLACK_LEVEL_LOCK
-     * @see ACAMERA_CONTROL_AE_LOCK
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     * @see ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE
-     * @see ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION
-     * @see ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR             = 1,
-
-    /**
-     * <p>The camera device post-processing stages can be manually controlled.
-     * The camera device supports basic manual control of the image post-processing
-     * stages. This means the following controls are guaranteed to be supported:</p>
-     * <ul>
-     * <li>
-     * <p>Manual tonemap control</p>
-     * <ul>
-     * <li>android.tonemap.curve</li>
-     * <li>ACAMERA_TONEMAP_MODE</li>
-     * <li>ACAMERA_TONEMAP_MAX_CURVE_POINTS</li>
-     * <li>ACAMERA_TONEMAP_GAMMA</li>
-     * <li>ACAMERA_TONEMAP_PRESET_CURVE</li>
-     * </ul>
-     * </li>
-     * <li>
-     * <p>Manual white balance control</p>
-     * <ul>
-     * <li>ACAMERA_COLOR_CORRECTION_TRANSFORM</li>
-     * <li>ACAMERA_COLOR_CORRECTION_GAINS</li>
-     * </ul>
-     * </li>
-     * <li>Manual lens shading map control<ul>
-     * <li>ACAMERA_SHADING_MODE</li>
-     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE</li>
-     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP</li>
-     * <li>ACAMERA_LENS_INFO_SHADING_MAP_SIZE</li>
-     * </ul>
-     * </li>
-     * <li>Manual aberration correction control (if aberration correction is supported)<ul>
-     * <li>ACAMERA_COLOR_CORRECTION_ABERRATION_MODE</li>
-     * <li>ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES</li>
-     * </ul>
-     * </li>
-     * <li>Auto white balance lock<ul>
-     * <li>ACAMERA_CONTROL_AWB_LOCK</li>
-     * </ul>
-     * </li>
-     * </ul>
-     * <p>If auto white balance is enabled, then the camera device
-     * will accurately report the values applied by AWB in the result.</p>
-     * <p>A given camera device may also support additional post-processing
-     * controls, but this capability only covers the above list of controls.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
-     * @see ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * @see ACAMERA_CONTROL_AWB_LOCK
-     * @see ACAMERA_LENS_INFO_SHADING_MAP_SIZE
-     * @see ACAMERA_SHADING_MODE
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
-     * @see ACAMERA_TONEMAP_GAMMA
-     * @see ACAMERA_TONEMAP_MAX_CURVE_POINTS
-     * @see ACAMERA_TONEMAP_MODE
-     * @see ACAMERA_TONEMAP_PRESET_CURVE
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING    = 2,
-
-    /**
-     * <p>The camera device supports outputting RAW buffers and
-     * metadata for interpreting them.</p>
-     * <p>Devices supporting the RAW capability allow both for
-     * saving DNG files, and for direct application processing of
-     * raw sensor images.</p>
-     * <ul>
-     * <li>RAW_SENSOR is supported as an output format.</li>
-     * <li>The maximum available resolution for RAW_SENSOR streams
-     *   will match either the value in
-     *   ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE or
-     *   ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE.</li>
-     * <li>All DNG-related optional metadata entries are provided
-     *   by the camera device.</li>
-     * </ul>
-     *
-     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_RAW                       = 3,
-
-    /**
-     * <p>The camera device supports accurately reporting the sensor settings for many of
-     * the sensor controls while the built-in 3A algorithm is running.  This allows
-     * reporting of sensor settings even when these settings cannot be manually changed.</p>
-     * <p>The values reported for the following controls are guaranteed to be available
-     * in the CaptureResult, including when 3A is enabled:</p>
-     * <ul>
-     * <li>Exposure control<ul>
-     * <li>ACAMERA_SENSOR_EXPOSURE_TIME</li>
-     * </ul>
-     * </li>
-     * <li>Sensitivity control<ul>
-     * <li>ACAMERA_SENSOR_SENSITIVITY</li>
-     * </ul>
-     * </li>
-     * <li>Lens controls (if the lens is adjustable)<ul>
-     * <li>ACAMERA_LENS_FOCUS_DISTANCE</li>
-     * <li>ACAMERA_LENS_APERTURE</li>
-     * </ul>
-     * </li>
-     * </ul>
-     * <p>This capability is a subset of the MANUAL_SENSOR control capability, and will
-     * always be included if the MANUAL_SENSOR capability is available.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS      = 5,
-
-    /**
-     * <p>The camera device supports capturing high-resolution images at &gt;= 20 frames per
-     * second, in at least the uncompressed YUV format, when post-processing settings are set
-     * to FAST. Additionally, maximum-resolution images can be captured at &gt;= 10 frames
-     * per second.  Here, 'high resolution' means at least 8 megapixels, or the maximum
-     * resolution of the device, whichever is smaller.</p>
-     * <p>More specifically, this means that at least one output {@link
-     * AIMAGE_FORMAT_YUV_420_888} size listed in
-     * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS} is larger or equal to the
-     * 'high resolution' defined above, and can be captured at at least 20 fps.
-     * For the largest {@link AIMAGE_FORMAT_YUV_420_888} size listed in
-     * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}, camera device can capture this
-     * size for at least 10 frames per second.
-     * Also the ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES entry lists at least one FPS range
-     * where the minimum FPS is &gt;= 1 / minimumFrameDuration for the largest YUV_420_888 size.</p>
-     * <p>If the device supports the {@link AIMAGE_FORMAT_RAW10}, {@link
-     * AIMAGE_FORMAT_RAW12}, then those can also be captured at the same rate
-     * as the maximum-size YUV_420_888 resolution is.</p>
-     * <p>In addition, the ACAMERA_SYNC_MAX_LATENCY field is guaranted to have a value between 0
-     * and 4, inclusive. ACAMERA_CONTROL_AE_LOCK_AVAILABLE and ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
-     * are also guaranteed to be <code>true</code> so burst capture with these two locks ON yields
-     * consistent image output.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES
-     * @see ACAMERA_CONTROL_AE_LOCK_AVAILABLE
-     * @see ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
-     * @see ACAMERA_SYNC_MAX_LATENCY
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE             = 6,
-
-    /**
-     * <p>The camera device can produce depth measurements from its field of view.</p>
-     * <p>This capability requires the camera device to support the following:</p>
-     * <ul>
-     * <li>{@link AIMAGE_FORMAT_DEPTH16} is supported as an output format.</li>
-     * <li>{@link AIMAGE_FORMAT_DEPTH_POINT_CLOUD} is optionally supported as an
-     *   output format.</li>
-     * <li>This camera device, and all camera devices with the same ACAMERA_LENS_FACING,
-     *   will list the following calibration entries in {@link ACameraMetadata} from both
-     *   {@link ACameraManager_getCameraCharacteristics} and
-     *   {@link ACameraCaptureSession_captureCallback_result}:<ul>
-     * <li>ACAMERA_LENS_POSE_TRANSLATION</li>
-     * <li>ACAMERA_LENS_POSE_ROTATION</li>
-     * <li>ACAMERA_LENS_INTRINSIC_CALIBRATION</li>
-     * <li>ACAMERA_LENS_RADIAL_DISTORTION</li>
-     * </ul>
-     * </li>
-     * <li>The ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE entry is listed by this device.</li>
-     * <li>A LIMITED camera with only the DEPTH_OUTPUT capability does not have to support
-     *   normal YUV_420_888, JPEG, and PRIV-format outputs. It only has to support the DEPTH16
-     *   format.</li>
-     * </ul>
-     * <p>Generally, depth output operates at a slower frame rate than standard color capture,
-     * so the DEPTH16 and DEPTH_POINT_CLOUD formats will commonly have a stall duration that
-     * should be accounted for (see
-     * {@link ACAMERA_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS}).
-     * On a device that supports both depth and color-based output, to enable smooth preview,
-     * using a repeating burst is recommended, where a depth-output target is only included
-     * once every N frames, where N is the ratio between preview output rate and depth output
-     * rate, including depth stall time.</p>
-     *
-     * @see ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE
-     * @see ACAMERA_LENS_FACING
-     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
-     * @see ACAMERA_LENS_POSE_ROTATION
-     * @see ACAMERA_LENS_POSE_TRANSLATION
-     * @see ACAMERA_LENS_RADIAL_DISTORTION
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT              = 8,
-
-} acamera_metadata_enum_android_request_available_capabilities_t;
-
-
-// ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
-typedef enum acamera_metadata_enum_acamera_scaler_available_stream_configurations {
-    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT            = 0,
-
-    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_INPUT             = 1,
-
-} acamera_metadata_enum_android_scaler_available_stream_configurations_t;
-
-// ACAMERA_SCALER_CROPPING_TYPE
-typedef enum acamera_metadata_enum_acamera_scaler_cropping_type {
-    /**
-     * <p>The camera device only supports centered crop regions.</p>
-     */
-    ACAMERA_SCALER_CROPPING_TYPE_CENTER_ONLY                         = 0,
-
-    /**
-     * <p>The camera device supports arbitrarily chosen crop regions.</p>
-     */
-    ACAMERA_SCALER_CROPPING_TYPE_FREEFORM                            = 1,
-
-} acamera_metadata_enum_android_scaler_cropping_type_t;
-
-
-// ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
-typedef enum acamera_metadata_enum_acamera_sensor_reference_illuminant1 {
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT                    = 1,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FLUORESCENT                 = 2,
-
-    /**
-     * <p>Incandescent light</p>
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_TUNGSTEN                    = 3,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FLASH                       = 4,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FINE_WEATHER                = 9,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_CLOUDY_WEATHER              = 10,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_SHADE                       = 11,
-
-    /**
-     * <p>D 5700 - 7100K</p>
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT_FLUORESCENT        = 12,
-
-    /**
-     * <p>N 4600 - 5400K</p>
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAY_WHITE_FLUORESCENT       = 13,
-
-    /**
-     * <p>W 3900 - 4500K</p>
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_COOL_WHITE_FLUORESCENT      = 14,
-
-    /**
-     * <p>WW 3200 - 3700K</p>
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_WHITE_FLUORESCENT           = 15,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_A                  = 17,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_B                  = 18,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_C                  = 19,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D55                         = 20,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D65                         = 21,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D75                         = 22,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D50                         = 23,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_ISO_STUDIO_TUNGSTEN         = 24,
-
-} acamera_metadata_enum_android_sensor_reference_illuminant1_t;
-
-// ACAMERA_SENSOR_TEST_PATTERN_MODE
-typedef enum acamera_metadata_enum_acamera_sensor_test_pattern_mode {
-    /**
-     * <p>No test pattern mode is used, and the camera
-     * device returns captures from the image sensor.</p>
-     * <p>This is the default if the key is not set.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_OFF                             = 0,
-
-    /**
-     * <p>Each pixel in <code>[R, G_even, G_odd, B]</code> is replaced by its
-     * respective color channel provided in
-     * ACAMERA_SENSOR_TEST_PATTERN_DATA.</p>
-     * <p>For example:</p>
-     * <pre><code>android.testPatternData = [0, 0xFFFFFFFF, 0xFFFFFFFF, 0]
-     * </code></pre>
-     * <p>All green pixels are 100% green. All red/blue pixels are black.</p>
-     * <pre><code>android.testPatternData = [0xFFFFFFFF, 0, 0xFFFFFFFF, 0]
-     * </code></pre>
-     * <p>All red pixels are 100% red. Only the odd green pixels
-     * are 100% green. All blue pixels are 100% black.</p>
-     *
-     * @see ACAMERA_SENSOR_TEST_PATTERN_DATA
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_SOLID_COLOR                     = 1,
-
-    /**
-     * <p>All pixel data is replaced with an 8-bar color pattern.</p>
-     * <p>The vertical bars (left-to-right) are as follows:</p>
-     * <ul>
-     * <li>100% white</li>
-     * <li>yellow</li>
-     * <li>cyan</li>
-     * <li>green</li>
-     * <li>magenta</li>
-     * <li>red</li>
-     * <li>blue</li>
-     * <li>black</li>
-     * </ul>
-     * <p>In general the image would look like the following:</p>
-     * <pre><code>W Y C G M R B K
-     * W Y C G M R B K
-     * W Y C G M R B K
-     * W Y C G M R B K
-     * W Y C G M R B K
-     * . . . . . . . .
-     * . . . . . . . .
-     * . . . . . . . .
-     *
-     * (B = Blue, K = Black)
-     * </code></pre>
-     * <p>Each bar should take up 1/8 of the sensor pixel array width.
-     * When this is not possible, the bar size should be rounded
-     * down to the nearest integer and the pattern can repeat
-     * on the right side.</p>
-     * <p>Each bar's height must always take up the full sensor
-     * pixel array height.</p>
-     * <p>Each pixel in this test pattern must be set to either
-     * 0% intensity or 100% intensity.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_COLOR_BARS                      = 2,
-
-    /**
-     * <p>The test pattern is similar to COLOR_BARS, except that
-     * each bar should start at its specified color at the top,
-     * and fade to gray at the bottom.</p>
-     * <p>Furthermore each bar is further subdivided into a left and
-     * right half. The left half should have a smooth gradient,
-     * and the right half should have a quantized gradient.</p>
-     * <p>In particular, the right half's should consist of blocks of the
-     * same color for 1/16th active sensor pixel array width.</p>
-     * <p>The least significant bits in the quantized gradient should
-     * be copied from the most significant bits of the smooth gradient.</p>
-     * <p>The height of each bar should always be a multiple of 128.
-     * When this is not the case, the pattern should repeat at the bottom
-     * of the image.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY         = 3,
-
-    /**
-     * <p>All pixel data is replaced by a pseudo-random sequence
-     * generated from a PN9 512-bit sequence (typically implemented
-     * in hardware with a linear feedback shift register).</p>
-     * <p>The generator should be reset at the beginning of each frame,
-     * and thus each subsequent raw frame with this test pattern should
-     * be exactly the same as the last.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_PN9                             = 4,
-
-    /**
-     * <p>The first custom test pattern. All custom patterns that are
-     * available only on this camera device are at least this numeric
-     * value.</p>
-     * <p>All of the custom test patterns will be static
-     * (that is the raw image must not vary from frame to frame).</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_CUSTOM1                         = 256,
-
-} acamera_metadata_enum_android_sensor_test_pattern_mode_t;
-
-
-// ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
-typedef enum acamera_metadata_enum_acamera_sensor_info_color_filter_arrangement {
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB                = 0,
-
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG                = 1,
-
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG                = 2,
-
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR                = 3,
-
-    /**
-     * <p>Sensor is not Bayer; output has 3 16-bit
-     * values for each pixel, instead of just 1 16-bit value
-     * per pixel.</p>
-     */
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGB                 = 4,
-
-} acamera_metadata_enum_android_sensor_info_color_filter_arrangement_t;
-
-// ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
-typedef enum acamera_metadata_enum_acamera_sensor_info_timestamp_source {
-    /**
-     * <p>Timestamps from ACAMERA_SENSOR_TIMESTAMP are in nanoseconds and monotonic,
-     * but can not be compared to timestamps from other subsystems
-     * (e.g. accelerometer, gyro etc.), or other instances of the same or different
-     * camera devices in the same system. Timestamps between streams and results for
-     * a single camera instance are comparable, and the timestamps for all buffers
-     * and the result metadata generated by a single capture are identical.</p>
-     *
-     * @see ACAMERA_SENSOR_TIMESTAMP
-     */
-    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN                     = 0,
-
-    /**
-     * <p>Timestamps from ACAMERA_SENSOR_TIMESTAMP are in the same timebase as
-     * <a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtimeNanos">elapsedRealtimeNanos</a>
-     * (or CLOCK_BOOTTIME), and they can be compared to other timestamps using that base.</p>
-     *
-     * @see ACAMERA_SENSOR_TIMESTAMP
-     */
-    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE_REALTIME                    = 1,
-
-} acamera_metadata_enum_android_sensor_info_timestamp_source_t;
-
-// ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
-typedef enum acamera_metadata_enum_acamera_sensor_info_lens_shading_applied {
-    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED_FALSE                   = 0,
-
-    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED_TRUE                    = 1,
-
-} acamera_metadata_enum_android_sensor_info_lens_shading_applied_t;
-
-
-// ACAMERA_SHADING_MODE
-typedef enum acamera_metadata_enum_acamera_shading_mode {
-    /**
-     * <p>No lens shading correction is applied.</p>
-     */
-    ACAMERA_SHADING_MODE_OFF                                         = 0,
-
-    /**
-     * <p>Apply lens shading corrections, without slowing
-     * frame rate relative to sensor raw output</p>
-     */
-    ACAMERA_SHADING_MODE_FAST                                        = 1,
-
-    /**
-     * <p>Apply high-quality lens shading correction, at the
-     * cost of possibly reduced frame rate.</p>
-     */
-    ACAMERA_SHADING_MODE_HIGH_QUALITY                                = 2,
-
-} acamera_metadata_enum_android_shading_mode_t;
-
-
-// ACAMERA_STATISTICS_FACE_DETECT_MODE
-typedef enum acamera_metadata_enum_acamera_statistics_face_detect_mode {
-    /**
-     * <p>Do not include face detection statistics in capture
-     * results.</p>
-     */
-    ACAMERA_STATISTICS_FACE_DETECT_MODE_OFF                          = 0,
-
-    /**
-     * <p>Return face rectangle and confidence values only.</p>
-     */
-    ACAMERA_STATISTICS_FACE_DETECT_MODE_SIMPLE                       = 1,
-
-    /**
-     * <p>Return all face
-     * metadata.</p>
-     * <p>In this mode, face rectangles, scores, landmarks, and face IDs are all valid.</p>
-     */
-    ACAMERA_STATISTICS_FACE_DETECT_MODE_FULL                         = 2,
-
-} acamera_metadata_enum_android_statistics_face_detect_mode_t;
-
-// ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE
-typedef enum acamera_metadata_enum_acamera_statistics_hot_pixel_map_mode {
-    /**
-     * <p>Hot pixel map production is disabled.</p>
-     */
-    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE_OFF                        = 0,
-
-    /**
-     * <p>Hot pixel map production is enabled.</p>
-     */
-    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE_ON                         = 1,
-
-} acamera_metadata_enum_android_statistics_hot_pixel_map_mode_t;
-
-// ACAMERA_STATISTICS_SCENE_FLICKER
-typedef enum acamera_metadata_enum_acamera_statistics_scene_flicker {
-    /**
-     * <p>The camera device does not detect any flickering illumination
-     * in the current scene.</p>
-     */
-    ACAMERA_STATISTICS_SCENE_FLICKER_NONE                            = 0,
-
-    /**
-     * <p>The camera device detects illumination flickering at 50Hz
-     * in the current scene.</p>
-     */
-    ACAMERA_STATISTICS_SCENE_FLICKER_50HZ                            = 1,
-
-    /**
-     * <p>The camera device detects illumination flickering at 60Hz
-     * in the current scene.</p>
-     */
-    ACAMERA_STATISTICS_SCENE_FLICKER_60HZ                            = 2,
-
-} acamera_metadata_enum_android_statistics_scene_flicker_t;
-
-// ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
-typedef enum acamera_metadata_enum_acamera_statistics_lens_shading_map_mode {
-    /**
-     * <p>Do not include a lens shading map in the capture result.</p>
-     */
-    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE_OFF                     = 0,
-
-    /**
-     * <p>Include a lens shading map in the capture result.</p>
-     */
-    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE_ON                      = 1,
-
-} acamera_metadata_enum_android_statistics_lens_shading_map_mode_t;
-
-
-
-// ACAMERA_TONEMAP_MODE
-typedef enum acamera_metadata_enum_acamera_tonemap_mode {
-    /**
-     * <p>Use the tone mapping curve specified in
-     * the ACAMERA_TONEMAPCURVE_* entries.</p>
-     * <p>All color enhancement and tonemapping must be disabled, except
-     * for applying the tonemapping curve specified by
-     * android.tonemap.curve.</p>
-     * <p>Must not slow down frame rate relative to raw
-     * sensor output.</p>
-     */
-    ACAMERA_TONEMAP_MODE_CONTRAST_CURVE                              = 0,
-
-    /**
-     * <p>Advanced gamma mapping and color enhancement may be applied, without
-     * reducing frame rate compared to raw sensor output.</p>
-     */
-    ACAMERA_TONEMAP_MODE_FAST                                        = 1,
-
-    /**
-     * <p>High-quality gamma mapping and color enhancement will be applied, at
-     * the cost of possibly reduced frame rate compared to raw sensor output.</p>
-     */
-    ACAMERA_TONEMAP_MODE_HIGH_QUALITY                                = 2,
-
-    /**
-     * <p>Use the gamma value specified in ACAMERA_TONEMAP_GAMMA to peform
-     * tonemapping.</p>
-     * <p>All color enhancement and tonemapping must be disabled, except
-     * for applying the tonemapping curve specified by ACAMERA_TONEMAP_GAMMA.</p>
-     * <p>Must not slow down frame rate relative to raw sensor output.</p>
-     *
-     * @see ACAMERA_TONEMAP_GAMMA
-     */
-    ACAMERA_TONEMAP_MODE_GAMMA_VALUE                                 = 3,
-
-    /**
-     * <p>Use the preset tonemapping curve specified in
-     * ACAMERA_TONEMAP_PRESET_CURVE to peform tonemapping.</p>
-     * <p>All color enhancement and tonemapping must be disabled, except
-     * for applying the tonemapping curve specified by
-     * ACAMERA_TONEMAP_PRESET_CURVE.</p>
-     * <p>Must not slow down frame rate relative to raw sensor output.</p>
-     *
-     * @see ACAMERA_TONEMAP_PRESET_CURVE
-     */
-    ACAMERA_TONEMAP_MODE_PRESET_CURVE                                = 4,
-
-} acamera_metadata_enum_android_tonemap_mode_t;
-
-// ACAMERA_TONEMAP_PRESET_CURVE
-typedef enum acamera_metadata_enum_acamera_tonemap_preset_curve {
-    /**
-     * <p>Tonemapping curve is defined by sRGB</p>
-     */
-    ACAMERA_TONEMAP_PRESET_CURVE_SRGB                                = 0,
-
-    /**
-     * <p>Tonemapping curve is defined by ITU-R BT.709</p>
-     */
-    ACAMERA_TONEMAP_PRESET_CURVE_REC709                              = 1,
-
-} acamera_metadata_enum_android_tonemap_preset_curve_t;
-
-
-
-// ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
-typedef enum acamera_metadata_enum_acamera_info_supported_hardware_level {
-    /**
-     * <p>This camera device does not have enough capabilities to qualify as a <code>FULL</code> device or
-     * better.</p>
-     * <p>Only the stream configurations listed in the <code>LEGACY</code> and <code>LIMITED</code> tables in the
-     * {@link ACameraDevice_createCaptureSession} documentation are guaranteed to be supported.</p>
-     * <p>All <code>LIMITED</code> devices support the <code>BACKWARDS_COMPATIBLE</code> capability, indicating basic
-     * support for color image capture. The only exception is that the device may
-     * alternatively support only the <code>DEPTH_OUTPUT</code> capability, if it can only output depth
-     * measurements and not color images.</p>
-     * <p><code>LIMITED</code> devices and above require the use of ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * to lock exposure metering (and calculate flash power, for cameras with flash) before
-     * capturing a high-quality still image.</p>
-     * <p>A <code>LIMITED</code> device that only lists the <code>BACKWARDS_COMPATIBLE</code> capability is only
-     * required to support full-automatic operation and post-processing (<code>OFF</code> is not
-     * supported for ACAMERA_CONTROL_AE_MODE, ACAMERA_CONTROL_AF_MODE, or
-     * ACAMERA_CONTROL_AWB_MODE)</p>
-     * <p>Additional capabilities may optionally be supported by a <code>LIMITED</code>-level device, and
-     * can be checked for in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED                    = 0,
-
-    /**
-     * <p>This camera device is capable of supporting advanced imaging applications.</p>
-     * <p>The stream configurations listed in the <code>FULL</code>, <code>LEGACY</code> and <code>LIMITED</code> tables in the
-     * {@link ACameraDevice_createCaptureSession} documentation are guaranteed to be supported.</p>
-     * <p>A <code>FULL</code> device will support below capabilities:</p>
-     * <ul>
-     * <li><code>BURST_CAPTURE</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
-     *   <code>BURST_CAPTURE</code>)</li>
-     * <li>Per frame control (ACAMERA_SYNC_MAX_LATENCY <code>==</code> PER_FRAME_CONTROL)</li>
-     * <li>Manual sensor control (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains <code>MANUAL_SENSOR</code>)</li>
-     * <li>Manual post-processing control (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
-     *   <code>MANUAL_POST_PROCESSING</code>)</li>
-     * <li>The required exposure time range defined in ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE</li>
-     * <li>The required maxFrameDuration defined in ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION</li>
-     * </ul>
-     * <p>Note:
-     * Pre-API level 23, FULL devices also supported arbitrary cropping region
-     * (ACAMERA_SCALER_CROPPING_TYPE <code>== FREEFORM</code>); this requirement was relaxed in API level
-     * 23, and <code>FULL</code> devices may only support <code>CENTERED</code> cropping.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * @see ACAMERA_SCALER_CROPPING_TYPE
-     * @see ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE
-     * @see ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION
-     * @see ACAMERA_SYNC_MAX_LATENCY
-     */
-    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL                       = 1,
-
-    /**
-     * <p>This camera device is running in backward compatibility mode.</p>
-     * <p>Only the stream configurations listed in the <code>LEGACY</code> table in the {@link
-     * ACameraDevice_createCaptureSession} documentation are supported.</p>
-     * <p>A <code>LEGACY</code> device does not support per-frame control, manual sensor control, manual
-     * post-processing, arbitrary cropping regions, and has relaxed performance constraints.
-     * No additional capabilities beyond <code>BACKWARD_COMPATIBLE</code> will ever be listed by a
-     * <code>LEGACY</code> device in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
-     * <p>In addition, the ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is not functional on <code>LEGACY</code>
-     * devices. Instead, every request that includes a JPEG-format output target is treated
-     * as triggering a still capture, internally executing a precapture trigger.  This may
-     * fire the flash for flash power metering during precapture, and then fire the flash
-     * for the final capture, if a flash is available on the device and the AE mode is set to
-     * enable the flash.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY                     = 2,
-
-    /**
-     * <p>This camera device is capable of YUV reprocessing and RAW data capture, in addition to
-     * FULL-level capabilities.</p>
-     * <p>The stream configurations listed in the <code>LEVEL_3</code>, <code>RAW</code>, <code>FULL</code>, <code>LEGACY</code> and
-     * <code>LIMITED</code> tables in the {@link
-     * ACameraDevice_createCaptureSession}
-     * documentation are guaranteed to be supported.</p>
-     * <p>The following additional capabilities are guaranteed to be supported:</p>
-     * <ul>
-     * <li><code>YUV_REPROCESSING</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
-     *   <code>YUV_REPROCESSING</code>)</li>
-     * <li><code>RAW</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
-     *   <code>RAW</code>)</li>
-     * </ul>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_3                          = 3,
-
-} acamera_metadata_enum_android_info_supported_hardware_level_t;
-
-
-// ACAMERA_BLACK_LEVEL_LOCK
-typedef enum acamera_metadata_enum_acamera_black_level_lock {
-    ACAMERA_BLACK_LEVEL_LOCK_OFF                                     = 0,
-
-    ACAMERA_BLACK_LEVEL_LOCK_ON                                      = 1,
-
-} acamera_metadata_enum_android_black_level_lock_t;
-
-
-// ACAMERA_SYNC_FRAME_NUMBER
-typedef enum acamera_metadata_enum_acamera_sync_frame_number {
-    /**
-     * <p>The current result is not yet fully synchronized to any request.</p>
-     * <p>Synchronization is in progress, and reading metadata from this
-     * result may include a mix of data that have taken effect since the
-     * last synchronization time.</p>
-     * <p>In some future result, within ACAMERA_SYNC_MAX_LATENCY frames,
-     * this value will update to the actual frame number frame number
-     * the result is guaranteed to be synchronized to (as long as the
-     * request settings remain constant).</p>
-     *
-     * @see ACAMERA_SYNC_MAX_LATENCY
-     */
-    ACAMERA_SYNC_FRAME_NUMBER_CONVERGING                             = -1,
-
-    /**
-     * <p>The current result's synchronization status is unknown.</p>
-     * <p>The result may have already converged, or it may be in
-     * progress.  Reading from this result may include some mix
-     * of settings from past requests.</p>
-     * <p>After a settings change, the new settings will eventually all
-     * take effect for the output buffers and results. However, this
-     * value will not change when that happens. Altering settings
-     * rapidly may provide outcomes using mixes of settings from recent
-     * requests.</p>
-     * <p>This value is intended primarily for backwards compatibility with
-     * the older camera implementations (for android.hardware.Camera).</p>
-     */
-    ACAMERA_SYNC_FRAME_NUMBER_UNKNOWN                                = -2,
-
-} acamera_metadata_enum_android_sync_frame_number_t;
-
-// ACAMERA_SYNC_MAX_LATENCY
-typedef enum acamera_metadata_enum_acamera_sync_max_latency {
-    /**
-     * <p>Every frame has the requests immediately applied.</p>
-     * <p>Changing controls over multiple requests one after another will
-     * produce results that have those controls applied atomically
-     * each frame.</p>
-     * <p>All FULL capability devices will have this as their maxLatency.</p>
-     */
-    ACAMERA_SYNC_MAX_LATENCY_PER_FRAME_CONTROL                       = 0,
-
-    /**
-     * <p>Each new frame has some subset (potentially the entire set)
-     * of the past requests applied to the camera settings.</p>
-     * <p>By submitting a series of identical requests, the camera device
-     * will eventually have the camera settings applied, but it is
-     * unknown when that exact point will be.</p>
-     * <p>All LEGACY capability devices will have this as their maxLatency.</p>
-     */
-    ACAMERA_SYNC_MAX_LATENCY_UNKNOWN                                 = -1,
-
-} acamera_metadata_enum_android_sync_max_latency_t;
-
-
-
-// ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS
-typedef enum acamera_metadata_enum_acamera_depth_available_depth_stream_configurations {
-    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_OUTPUT       = 0,
-
-    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_INPUT        = 1,
-
-} acamera_metadata_enum_android_depth_available_depth_stream_configurations_t;
-
-// ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE
-typedef enum acamera_metadata_enum_acamera_depth_depth_is_exclusive {
-    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE_FALSE                           = 0,
-
-    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE_TRUE                            = 1,
-
-} acamera_metadata_enum_android_depth_depth_is_exclusive_t;
-
-
-
-#endif //_NDK_CAMERA_METADATA_TAGS_H
-
-/** @} */
diff --git a/include/camera/ndk/NdkCaptureRequest.h b/include/camera/ndk/NdkCaptureRequest.h
deleted file mode 100644
index cd97f4d..0000000
--- a/include/camera/ndk/NdkCaptureRequest.h
+++ /dev/null
@@ -1,309 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @addtogroup Camera
- * @{
- */
-
-/**
- * @file NdkCaptureRequest.h
- */
-
-/*
- * This file defines an NDK API.
- * Do not remove methods.
- * Do not change method signatures.
- * Do not change the value of constants.
- * Do not change the size of any of the classes defined in here.
- * Do not reference types that are not part of the NDK.
- * Do not #include files that aren't part of the NDK.
- */
-#include <android/native_window.h>
-#include "NdkCameraError.h"
-#include "NdkCameraMetadata.h"
-
-#ifndef _NDK_CAPTURE_REQUEST_H
-#define _NDK_CAPTURE_REQUEST_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-// Container for output targets
-typedef struct ACameraOutputTargets ACameraOutputTargets;
-
-// Container for a single output target
-typedef struct ACameraOutputTarget ACameraOutputTarget;
-
-/**
- * ACaptureRequest is an opaque type that contains settings and output targets needed to capture
- * a single image from camera device.
- *
- * <p>ACaptureRequest contains the configuration for the capture hardware (sensor, lens, flash),
- * the processing pipeline, the control algorithms, and the output buffers. Also
- * contains the list of target {@link ANativeWindow}s to send image data to for this
- * capture.</p>
- *
- * <p>ACaptureRequest is created by {@link ACameraDevice_createCaptureRequest}.
- *
- * <p>ACaptureRequest is given to {@link ACameraCaptureSession_capture} or
- * {@link ACameraCaptureSession_setRepeatingRequest} to capture images from a camera.</p>
- *
- * <p>Each request can specify a different subset of target {@link ANativeWindow}s for the
- * camera to send the captured data to. All the {@link ANativeWindow}s used in a request must
- * be part of the {@link ANativeWindow} list given to the last call to
- * {@link ACameraDevice_createCaptureSession}, when the request is submitted to the
- * session.</p>
- *
- * <p>For example, a request meant for repeating preview might only include the
- * {@link ANativeWindow} for the preview SurfaceView or SurfaceTexture, while a
- * high-resolution still capture would also include a {@link ANativeWindow} from a
- * {@link AImageReader} configured for high-resolution JPEG images.</p>
- *
- * @see ACameraDevice_createCaptureRequest
- * @see ACameraCaptureSession_capture
- * @see ACameraCaptureSession_setRepeatingRequest
- */
-typedef struct ACaptureRequest ACaptureRequest;
-
-/**
- * Create a ACameraOutputTarget object.
- *
- * <p>The ACameraOutputTarget is used in {@link ACaptureRequest_addTarget} method to add an output
- * {@link ANativeWindow} to ACaptureRequest. Use {@link ACameraOutputTarget_free} to free the object
- * and its memory after application no longer needs the {@link ACameraOutputTarget}.</p>
- *
- * @param window the {@link ANativeWindow} to be associated with the {@link ACameraOutputTarget}
- * @param output the output {@link ACameraOutputTarget} will be stored here if the
- *                  method call succeeds.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds. The created ACameraOutputTarget will
- *                                be filled in the output argument.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if window or output is NULL.</li></ul>
- *
- * @see ACaptureRequest_addTarget
- */
-camera_status_t ACameraOutputTarget_create(ANativeWindow* window, ACameraOutputTarget** output);
-
-/**
- * Free a ACameraOutputTarget object.
- *
- * @param output the {@link ACameraOutputTarget} to be freed.
- *
- * @see ACameraOutputTarget_create
- */
-void ACameraOutputTarget_free(ACameraOutputTarget* output);
-
-/**
- * Add an {@link ACameraOutputTarget} object to {@link ACaptureRequest}.
- *
- * @param request the {@link ACaptureRequest} of interest.
- * @param output the output {@link ACameraOutputTarget} to be added to capture request.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request or output is NULL.</li></ul>
- */
-camera_status_t ACaptureRequest_addTarget(ACaptureRequest* request,
-        const ACameraOutputTarget* output);
-
-/**
- * Remove an {@link ACameraOutputTarget} object from {@link ACaptureRequest}.
- *
- * <p>This method has no effect if the ACameraOutputTarget does not exist in ACaptureRequest.</p>
- *
- * @param request the {@link ACaptureRequest} of interest.
- * @param output the output {@link ACameraOutputTarget} to be removed from capture request.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request or output is NULL.</li></ul>
- */
-camera_status_t ACaptureRequest_removeTarget(ACaptureRequest* request,
-        const ACameraOutputTarget* output);
-
-/**
- * Get a metadata entry from input {@link ACaptureRequest}.
- *
- * <p>The memory of the data field in returned entry is managed by camera framework. Do not
- * attempt to free it.</p>
- *
- * @param request the {@link ACaptureRequest} of interest.
- * @param tag the tag value of the camera metadata entry to be get.
- * @param entry the output {@link ACameraMetadata_const_entry} will be filled here if the method
- *        call succeeeds.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if metadata or entry is NULL.</li>
- *         <li>{@link ACAMERA_ERROR_METADATA_NOT_FOUND} if the capture request does not contain an
- *             entry of input tag value.</li></ul>
- */
-camera_status_t ACaptureRequest_getConstEntry(
-        const ACaptureRequest* request, uint32_t tag, ACameraMetadata_const_entry* entry);
-
-/*
- * List all the entry tags in input {@link ACaptureRequest}.
- *
- * @param request the {@link ACaptureRequest} of interest.
- * @param numEntries number of metadata entries in input {@link ACaptureRequest}
- * @param tags the tag values of the metadata entries. Length of tags is returned in numEntries
- *             argument. The memory is managed by ACaptureRequest itself and must NOT be free/delete
- *             by application. Calling ACaptureRequest_setEntry_* methods will invalidate previous
- *             output of ACaptureRequest_getAllTags. Do not access tags after calling
- *             ACaptureRequest_setEntry_*. To get new list of tags after updating capture request,
- *             application must call ACaptureRequest_getAllTags again. Do NOT access tags after
- *             calling ACaptureRequest_free.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request, numEntries or tags is NULL.</li>
- *         <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
- */
-camera_status_t ACaptureRequest_getAllTags(
-        const ACaptureRequest* request, /*out*/int32_t* numTags, /*out*/const uint32_t** tags);
-
-/**
- * Set/change a camera capture control entry with unsigned 8 bits data type.
- *
- * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
- *
- * @param request the {@link ACaptureRequest} of interest.
- * @param tag the tag value of the camera metadata entry to be set.
- * @param count number of elements to be set in data argument
- * @param data the entries to be set/change in the capture request.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
- *             zero while data is NULL, the data type of the tag is not unsigned 8 bits, or
- *             the tag is not controllable by application.</li></ul>
- */
-camera_status_t ACaptureRequest_setEntry_u8(
-        ACaptureRequest* request, uint32_t tag, uint32_t count, const uint8_t* data);
-
-/**
- * Set/change a camera capture control entry with signed 32 bits data type.
- *
- * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
- *
- * @param request the {@link ACaptureRequest} of interest.
- * @param tag the tag value of the camera metadata entry to be set.
- * @param count number of elements to be set in data argument
- * @param data the entries to be set/change in the capture request.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
- *             zero while data is NULL, the data type of the tag is not signed 32 bits, or
- *             the tag is not controllable by application.</li></ul>
- */
-camera_status_t ACaptureRequest_setEntry_i32(
-        ACaptureRequest* request, uint32_t tag, uint32_t count, const int32_t* data);
-
-/**
- * Set/change a camera capture control entry with float data type.
- *
- * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
- *
- * @param request the {@link ACaptureRequest} of interest.
- * @param tag the tag value of the camera metadata entry to be set.
- * @param count number of elements to be set in data argument
- * @param data the entries to be set/change in the capture request.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
- *             zero while data is NULL, the data type of the tag is not float, or
- *             the tag is not controllable by application.</li></ul>
- */
-camera_status_t ACaptureRequest_setEntry_float(
-        ACaptureRequest* request, uint32_t tag, uint32_t count, const float* data);
-
-/**
- * Set/change a camera capture control entry with signed 64 bits data type.
- *
- * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
- *
- * @param request the {@link ACaptureRequest} of interest.
- * @param tag the tag value of the camera metadata entry to be set.
- * @param count number of elements to be set in data argument
- * @param data the entries to be set/change in the capture request.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
- *             zero while data is NULL, the data type of the tag is not signed 64 bits, or
- *             the tag is not controllable by application.</li></ul>
- */
-camera_status_t ACaptureRequest_setEntry_i64(
-        ACaptureRequest* request, uint32_t tag, uint32_t count, const int64_t* data);
-
-/**
- * Set/change a camera capture control entry with double data type.
- *
- * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
- *
- * @param request the {@link ACaptureRequest} of interest.
- * @param tag the tag value of the camera metadata entry to be set.
- * @param count number of elements to be set in data argument
- * @param data the entries to be set/change in the capture request.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
- *             zero while data is NULL, the data type of the tag is not double, or
- *             the tag is not controllable by application.</li></ul>
- */
-camera_status_t ACaptureRequest_setEntry_double(
-        ACaptureRequest* request, uint32_t tag, uint32_t count, const double* data);
-
-/**
- * Set/change a camera capture control entry with rational data type.
- *
- * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
- *
- * @param request the {@link ACaptureRequest} of interest.
- * @param tag the tag value of the camera metadata entry to be set.
- * @param count number of elements to be set in data argument
- * @param data the entries to be set/change in the capture request.
- *
- * @return <ul>
- *         <li>{@link ACAMERA_OK} if the method call succeeds.</li>
- *         <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
- *             zero while data is NULL, the data type of the tag is not rational, or
- *             the tag is not controllable by application.</li></ul>
- */
-camera_status_t ACaptureRequest_setEntry_rational(
-        ACaptureRequest* request, uint32_t tag, uint32_t count,
-        const ACameraMetadata_rational* data);
-
-/**
- * Free a {@link ACaptureRequest} structure.
- *
- * @param request the {@link ACaptureRequest} to be freed.
- */
-void ACaptureRequest_free(ACaptureRequest* request);
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-#endif // _NDK_CAPTURE_REQUEST_H
-
-/** @} */
diff --git a/include/cpustats b/include/cpustats
new file mode 120000
index 0000000..4a02d41
--- /dev/null
+++ b/include/cpustats
@@ -0,0 +1 @@
+../media/libcpustats/include/cpustats/
\ No newline at end of file
diff --git a/include/drm/DrmConstraints.h b/include/drm/DrmConstraints.h
index a9ec942..b8bb24f 100644
--- a/include/drm/DrmConstraints.h
+++ b/include/drm/DrmConstraints.h
@@ -70,7 +70,7 @@
     class KeyIterator {
         friend class DrmConstraints;
     private:
-        KeyIterator(DrmConstraints* drmConstraints)
+        explicit KeyIterator(DrmConstraints* drmConstraints)
             : mDrmConstraints(drmConstraints), mIndex(0) {}
 
     public:
@@ -93,7 +93,7 @@
     class Iterator {
         friend class DrmConstraints;
     private:
-        Iterator(DrmConstraints* drmConstraints)
+        explicit Iterator(DrmConstraints* drmConstraints)
             : mDrmConstraints(drmConstraints), mIndex(0) {}
 
     public:
diff --git a/include/drm/DrmInfo.h b/include/drm/DrmInfo.h
index 7b48541..53dfd61 100644
--- a/include/drm/DrmInfo.h
+++ b/include/drm/DrmInfo.h
@@ -55,7 +55,7 @@
         friend class DrmInfo;
 
     private:
-        KeyIterator(const DrmInfo* drmInfo)
+        explicit KeyIterator(const DrmInfo* drmInfo)
             : mDrmInfo(const_cast <DrmInfo*> (drmInfo)), mIndex(0) {}
 
     public:
@@ -79,7 +79,7 @@
         friend class DrmInfo;
 
     private:
-        Iterator(const DrmInfo* drmInfo)
+        explicit Iterator(const DrmInfo* drmInfo)
             : mDrmInfo(const_cast <DrmInfo*> (drmInfo)), mIndex(0) {}
 
     public:
diff --git a/include/drm/DrmInfoEvent.h b/include/drm/DrmInfoEvent.h
index dfca228..3165f02 100644
--- a/include/drm/DrmInfoEvent.h
+++ b/include/drm/DrmInfoEvent.h
@@ -77,7 +77,7 @@
      * @param[in] infoType Type of information
      * @param[in] message Message description
      */
-    DrmInfoEvent(int uniqueId, int infoType, const String8 message);
+    DrmInfoEvent(int uniqueId, int infoType, const String8& message);
 
     /**
      * Destructor for DrmInfoEvent
diff --git a/include/drm/DrmInfoRequest.h b/include/drm/DrmInfoRequest.h
index 3e48ecc..e2da4fe 100644
--- a/include/drm/DrmInfoRequest.h
+++ b/include/drm/DrmInfoRequest.h
@@ -69,7 +69,7 @@
         friend class DrmInfoRequest;
 
     private:
-        KeyIterator(const DrmInfoRequest* drmInfoRequest)
+        explicit KeyIterator(const DrmInfoRequest* drmInfoRequest)
             : mDrmInfoRequest(const_cast <DrmInfoRequest*> (drmInfoRequest)), mIndex(0) {}
 
     public:
@@ -93,7 +93,7 @@
         friend class DrmInfoRequest;
 
     private:
-        Iterator(const DrmInfoRequest* drmInfoRequest)
+        explicit Iterator(const DrmInfoRequest* drmInfoRequest)
             : mDrmInfoRequest(const_cast <DrmInfoRequest*> (drmInfoRequest)), mIndex(0) {}
 
     public:
diff --git a/include/drm/DrmMetadata.h b/include/drm/DrmMetadata.h
index 2c7538a..6624450 100644
--- a/include/drm/DrmMetadata.h
+++ b/include/drm/DrmMetadata.h
@@ -35,7 +35,7 @@
     class KeyIterator {
         friend class DrmMetadata;
     private:
-        KeyIterator(DrmMetadata* drmMetadata) : mDrmMetadata(drmMetadata), mIndex(0) {}
+        explicit KeyIterator(DrmMetadata* drmMetadata) : mDrmMetadata(drmMetadata), mIndex(0) {}
 
     public:
         KeyIterator(const KeyIterator& keyIterator);
@@ -57,7 +57,7 @@
     class Iterator {
         friend class DrmMetadata;
     private:
-        Iterator(DrmMetadata* drmMetadata) : mDrmMetadata(drmMetadata), mIndex(0) {}
+        explicit Iterator(DrmMetadata* drmMetadata) : mDrmMetadata(drmMetadata), mIndex(0) {}
 
     public:
         Iterator(const Iterator& iterator);
diff --git a/include/drm/DrmSupportInfo.h b/include/drm/DrmSupportInfo.h
index bf12b0b..bf85dbb 100644
--- a/include/drm/DrmSupportInfo.h
+++ b/include/drm/DrmSupportInfo.h
@@ -37,7 +37,7 @@
     class MimeTypeIterator {
         friend class DrmSupportInfo;
     private:
-        MimeTypeIterator(DrmSupportInfo* drmSupportInfo)
+        explicit MimeTypeIterator(DrmSupportInfo* drmSupportInfo)
            : mDrmSupportInfo(drmSupportInfo), mIndex(0) {}
     public:
         MimeTypeIterator(const MimeTypeIterator& iterator);
@@ -60,7 +60,7 @@
        friend class DrmSupportInfo;
 
     private:
-        FileSuffixIterator(DrmSupportInfo* drmSupportInfo)
+        explicit FileSuffixIterator(DrmSupportInfo* drmSupportInfo)
             : mDrmSupportInfo(drmSupportInfo), mIndex(0) {}
     public:
         FileSuffixIterator(const FileSuffixIterator& iterator);
diff --git a/include/drm/drm_framework_common.h b/include/drm/drm_framework_common.h
index 637409c..d75f71c 100644
--- a/include/drm/drm_framework_common.h
+++ b/include/drm/drm_framework_common.h
@@ -23,7 +23,7 @@
 #include <utils/String8.h>
 #include <utils/Errors.h>
 
-#define INVALID_VALUE -1
+#define INVALID_VALUE (-1)
 
 namespace android {
 
@@ -234,10 +234,6 @@
      * POSIX based Decrypt API set for container based DRM
      */
     static const int CONTAINER_BASED = 0x02;
-    /**
-     * Decrypt API for Widevine streams
-     */
-    static const int WV_BASED = 0x3;
 };
 
 /**
diff --git a/include/media/AVSyncSettings.h b/include/media/AVSyncSettings.h
new file mode 120000
index 0000000..bbe211f
--- /dev/null
+++ b/include/media/AVSyncSettings.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/AVSyncSettings.h
\ No newline at end of file
diff --git a/include/media/AudioBufferProvider.h b/include/media/AudioBufferProvider.h
new file mode 120000
index 0000000..c4d6e79
--- /dev/null
+++ b/include/media/AudioBufferProvider.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/AudioBufferProvider.h
\ No newline at end of file
diff --git a/include/media/AudioEffect.h b/include/media/AudioEffect.h
deleted file mode 100644
index 6af1962..0000000
--- a/include/media/AudioEffect.h
+++ /dev/null
@@ -1,488 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIOEFFECT_H
-#define ANDROID_AUDIOEFFECT_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <media/IAudioFlinger.h>
-#include <media/IAudioPolicyService.h>
-#include <media/IEffect.h>
-#include <media/IEffectClient.h>
-#include <hardware/audio_effect.h>
-#include <media/AudioSystem.h>
-
-#include <utils/RefBase.h>
-#include <utils/Errors.h>
-#include <binder/IInterface.h>
-
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-struct effect_param_cblk_t;
-
-// ----------------------------------------------------------------------------
-
-class AudioEffect : public RefBase
-{
-public:
-
-    /*
-     *  Static methods for effects enumeration.
-     */
-
-    /*
-     * Returns the number of effects available. This method together
-     * with queryEffect() is used to enumerate all effects:
-     * The enumeration sequence is:
-     *      queryNumberEffects(&num_effects);
-     *      for (i = 0; i < num_effects; i++)
-     *          queryEffect(i,...);
-     *
-     * Parameters:
-     *      numEffects:    address where the number of effects should be returned.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *      NO_ERROR   successful operation.
-     *      PERMISSION_DENIED could not get AudioFlinger interface
-     *      NO_INIT    effect library failed to initialize
-     *      BAD_VALUE  invalid numEffects pointer
-     *
-     * Returned value
-     *   *numEffects:     updated with number of effects available
-     */
-    static status_t queryNumberEffects(uint32_t *numEffects);
-
-    /*
-     * Returns an effect descriptor during effect
-     * enumeration.
-     *
-     * Parameters:
-     *      index:      index of the queried effect.
-     *      descriptor: address where the effect descriptor should be returned.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *      NO_ERROR        successful operation.
-     *      PERMISSION_DENIED could not get AudioFlinger interface
-     *      NO_INIT         effect library failed to initialize
-     *      BAD_VALUE       invalid descriptor pointer or index
-     *      INVALID_OPERATION  effect list has changed since last execution of queryNumberEffects()
-     *
-     * Returned value
-     *   *descriptor:     updated with effect descriptor
-     */
-    static status_t queryEffect(uint32_t index, effect_descriptor_t *descriptor);
-
-
-    /*
-     * Returns the descriptor for the specified effect uuid.
-     *
-     * Parameters:
-     *      uuid:       pointer to effect uuid.
-     *      descriptor: address where the effect descriptor should be returned.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *      NO_ERROR        successful operation.
-     *      PERMISSION_DENIED could not get AudioFlinger interface
-     *      NO_INIT         effect library failed to initialize
-     *      BAD_VALUE       invalid uuid or descriptor pointers
-     *      NAME_NOT_FOUND  no effect with this uuid found
-     *
-     * Returned value
-     *   *descriptor updated with effect descriptor
-     */
-    static status_t getEffectDescriptor(const effect_uuid_t *uuid,
-                                        effect_descriptor_t *descriptor) /*const*/;
-
-
-    /*
-     * Returns a list of descriptors corresponding to the pre processings enabled by default
-     * on an AudioRecord with the supplied audio session ID.
-     *
-     * Parameters:
-     *      audioSession:  audio session ID.
-     *      descriptors: address where the effect descriptors should be returned.
-     *      count: as input, the maximum number of descriptor than should be returned
-     *             as output, the number of descriptor returned if status is NO_ERROR or the actual
-     *             number of enabled pre processings if status is NO_MEMORY
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *      NO_ERROR        successful operation.
-     *      NO_MEMORY       the number of descriptor to return is more than the maximum number
-     *                      indicated by count.
-     *      PERMISSION_DENIED could not get AudioFlinger interface
-     *      NO_INIT         effect library failed to initialize
-     *      BAD_VALUE       invalid audio session or descriptor pointers
-     *
-     * Returned value
-     *   *descriptor updated with descriptors of pre processings enabled by default
-     *   *count      number of descriptors returned if returned status is NO_ERROR.
-     *               total number of pre processing enabled by default if returned status is
-     *               NO_MEMORY. This happens if the count passed as input is less than the number
-     *               of descriptors to return.
-     *               *count is limited to kMaxPreProcessing on return.
-     */
-    static status_t queryDefaultPreProcessing(audio_session_t audioSession,
-                                              effect_descriptor_t *descriptors,
-                                              uint32_t *count);
-
-    /*
-     * Events used by callback function (effect_callback_t).
-     */
-    enum event_type {
-        EVENT_CONTROL_STATUS_CHANGED = 0,
-        EVENT_ENABLE_STATUS_CHANGED = 1,
-        EVENT_PARAMETER_CHANGED = 2,
-        EVENT_ERROR = 3
-    };
-
-    /* Callback function notifying client application of a change in effect engine state or
-     * configuration.
-     * An effect engine can be shared by several applications but only one has the control
-     * of the engine activity and configuration at a time.
-     * The EVENT_CONTROL_STATUS_CHANGED event is received when an application loses or
-     * retrieves the control of the effect engine. Loss of control happens
-     * if another application requests the use of the engine by creating an AudioEffect for
-     * the same effect type but with a higher priority. Control is returned when the
-     * application having the control deletes its AudioEffect object.
-     * The EVENT_ENABLE_STATUS_CHANGED event is received by all applications not having the
-     * control of the effect engine when the effect is enabled or disabled.
-     * The EVENT_PARAMETER_CHANGED event is received by all applications not having the
-     * control of the effect engine when an effect parameter is changed.
-     * The EVENT_ERROR event is received when the media server process dies.
-     *
-     * Parameters:
-     *
-     * event:   type of event notified (see enum AudioEffect::event_type).
-     * user:    Pointer to context for use by the callback receiver.
-     * info:    Pointer to optional parameter according to event type:
-     *  - EVENT_CONTROL_STATUS_CHANGED:  boolean indicating if control is granted (true)
-     *  or stolen (false).
-     *  - EVENT_ENABLE_STATUS_CHANGED: boolean indicating if effect is now enabled (true)
-     *  or disabled (false).
-     *  - EVENT_PARAMETER_CHANGED: pointer to a effect_param_t structure.
-     *  - EVENT_ERROR:  status_t indicating the error (DEAD_OBJECT when media server dies).
-     */
-
-    typedef void (*effect_callback_t)(int32_t event, void* user, void *info);
-
-
-    /* Constructor.
-     * AudioEffect is the base class for creating and controlling an effect engine from
-     * the application process. Creating an AudioEffect object will create the effect engine
-     * in the AudioFlinger if no engine of the specified type exists. If one exists, this engine
-     * will be used. The application creating the AudioEffect object (or a derived class like
-     * Reverb for instance) will either receive control of the effect engine or not, depending
-     * on the priority parameter. If priority is higher than the priority used by the current
-     * effect engine owner, the control will be transfered to the new application. Otherwise
-     * control will remain to the previous application. In this case, the new application will be
-     * notified of changes in effect engine state or control ownership by the effect callback.
-     * After creating the AudioEffect, the application must call the initCheck() method and
-     * check the creation status before trying to control the effect engine (see initCheck()).
-     * If the effect is to be applied to an AudioTrack or MediaPlayer only the application
-     * must specify the audio session ID corresponding to this player.
-     */
-
-    /* Simple Constructor.
-     *
-     * Parameters:
-     *
-     * opPackageName:      The package name used for app op checks.
-     */
-    AudioEffect(const String16& opPackageName);
-
-
-    /* Constructor.
-     *
-     * Parameters:
-     *
-     * type:  type of effect created: can be null if uuid is specified. This corresponds to
-     *        the OpenSL ES interface implemented by this effect.
-     * opPackageName:  The package name used for app op checks.
-     * uuid:  Uuid of effect created: can be null if type is specified. This uuid corresponds to
-     *        a particular implementation of an effect type.
-     * priority:    requested priority for effect control: the priority level corresponds to the
-     *      value of priority parameter: negative values indicate lower priorities, positive values
-     *      higher priorities, 0 being the normal priority.
-     * cbf:         optional callback function (see effect_callback_t)
-     * user:        pointer to context for use by the callback receiver.
-     * sessionID:   audio session this effect is associated to.
-     *      If equal to AUDIO_SESSION_OUTPUT_MIX, the effect will be global to
-     *      the output mix.  Otherwise, the effect will be applied to all players
-     *      (AudioTrack or MediaPLayer) within the same audio session.
-     * io:  HAL audio output or input stream to which this effect must be attached. Leave at 0 for
-     *      automatic output selection by AudioFlinger.
-     */
-
-    AudioEffect(const effect_uuid_t *type,
-                const String16& opPackageName,
-                const effect_uuid_t *uuid = NULL,
-                  int32_t priority = 0,
-                  effect_callback_t cbf = NULL,
-                  void* user = NULL,
-                  audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
-                  audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
-                  );
-
-    /* Constructor.
-     *      Same as above but with type and uuid specified by character strings
-     */
-    AudioEffect(const char *typeStr,
-                    const String16& opPackageName,
-                    const char *uuidStr = NULL,
-                    int32_t priority = 0,
-                    effect_callback_t cbf = NULL,
-                    void* user = NULL,
-                    audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
-                    audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
-                    );
-
-    /* Terminates the AudioEffect and unregisters it from AudioFlinger.
-     * The effect engine is also destroyed if this AudioEffect was the last controlling
-     * the engine.
-     */
-                        ~AudioEffect();
-
-    /* Initialize an uninitialized AudioEffect.
-    * Returned status (from utils/Errors.h) can be:
-    *  - NO_ERROR or ALREADY_EXISTS: successful initialization
-    *  - INVALID_OPERATION: AudioEffect is already initialized
-    *  - BAD_VALUE: invalid parameter
-    *  - NO_INIT: audio flinger or audio hardware not initialized
-    * */
-            status_t    set(const effect_uuid_t *type,
-                            const effect_uuid_t *uuid = NULL,
-                            int32_t priority = 0,
-                            effect_callback_t cbf = NULL,
-                            void* user = NULL,
-                            audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
-                            audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
-                            );
-
-    /* Result of constructing the AudioEffect. This must be checked
-     * before using any AudioEffect API.
-     * initCheck() can return:
-     *  - NO_ERROR:    the effect engine is successfully created and the application has control.
-     *  - ALREADY_EXISTS: the effect engine is successfully created but the application does not
-     *              have control.
-     *  - NO_INIT:     the effect creation failed.
-     *
-     */
-            status_t    initCheck() const;
-
-
-    /* Returns the unique effect Id for the controlled effect engine. This ID is unique
-     * system wide and is used for instance in the case of auxiliary effects to attach
-     * the effect to an AudioTrack or MediaPlayer.
-     *
-     */
-            int32_t     id() const { return mId; }
-
-    /* Returns a descriptor for the effect (see effect_descriptor_t in audio_effect.h).
-     */
-            effect_descriptor_t descriptor() const;
-
-    /* Returns effect control priority of this AudioEffect object.
-     */
-            int32_t     priority() const { return mPriority; }
-
-
-    /* Enables or disables the effect engine.
-     *
-     * Parameters:
-     *  enabled: requested enable state.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the application does not have control of the effect engine or the
-     *  effect is already in the requested state.
-     */
-    virtual status_t    setEnabled(bool enabled);
-            bool        getEnabled() const;
-
-    /* Sets a parameter value.
-     *
-     * Parameters:
-     *      param:  pointer to effect_param_t structure containing the parameter
-     *          and its value (See audio_effect.h).
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation.
-     *  - INVALID_OPERATION: the application does not have control of the effect engine.
-     *  - BAD_VALUE: invalid parameter identifier or value.
-     *  - DEAD_OBJECT: the effect engine has been deleted.
-     */
-     virtual status_t   setParameter(effect_param_t *param);
-
-    /* Prepare a new parameter value that will be set by next call to
-     * setParameterCommit(). This method can be used to set multiple parameters
-     * in a synchronous manner or to avoid multiple binder calls for each
-     * parameter.
-     *
-     * Parameters:
-     *      param:  pointer to effect_param_t structure containing the parameter
-     *          and its value (See audio_effect.h).
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation.
-     *  - INVALID_OPERATION: the application does not have control of the effect engine.
-     *  - NO_MEMORY: no more space available in shared memory used for deferred parameter
-     *  setting.
-     */
-     virtual status_t   setParameterDeferred(effect_param_t *param);
-
-     /* Commit all parameter values previously prepared by setParameterDeferred().
-      *
-      * Parameters:
-      *     none
-      *
-      * Returned status (from utils/Errors.h) can be:
-      *  - NO_ERROR: successful operation.
-      *  - INVALID_OPERATION: No new parameter values ready for commit.
-      *  - BAD_VALUE: invalid parameter identifier or value: there is no indication
-      *     as to which of the parameters caused this error.
-      *  - DEAD_OBJECT: the effect engine has been deleted.
-      */
-     virtual status_t   setParameterCommit();
-
-    /* Gets a parameter value.
-     *
-     * Parameters:
-     *      param:  pointer to effect_param_t structure containing the parameter
-     *          and the returned value (See audio_effect.h).
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation.
-     *  - INVALID_OPERATION: the AudioEffect was not successfully initialized.
-     *  - BAD_VALUE: invalid parameter identifier.
-     *  - DEAD_OBJECT: the effect engine has been deleted.
-     */
-     virtual status_t   getParameter(effect_param_t *param);
-
-     /* Sends a command and receives a response to/from effect engine.
-      *     See audio_effect.h for details on effect command() function, valid command codes
-      *     and formats.
-      */
-     virtual status_t command(uint32_t cmdCode,
-                              uint32_t cmdSize,
-                              void *cmdData,
-                              uint32_t *replySize,
-                              void *replyData);
-
-
-     /*
-      * Utility functions.
-      */
-
-     /* Converts the string passed as first argument to the effect_uuid_t
-      * pointed to by second argument
-      */
-     static status_t stringToGuid(const char *str, effect_uuid_t *guid);
-     /* Converts the effect_uuid_t pointed to by first argument to the
-      * string passed as second argument
-      */
-     static status_t guidToString(const effect_uuid_t *guid, char *str, size_t maxLen);
-
-     // kMaxPreProcessing is a reasonable value for the maximum number of preprocessing effects
-     // that can be applied simultaneously.
-     static const uint32_t kMaxPreProcessing = 10;
-
-protected:
-     bool                    mEnabled;           // enable state
-     audio_session_t         mSessionId;         // audio session ID
-     int32_t                 mPriority;          // priority for effect control
-     status_t                mStatus;            // effect status
-     effect_callback_t       mCbf;               // callback function for status, control and
-                                                 // parameter changes notifications
-     void*                   mUserData;          // client context for callback function
-     effect_descriptor_t     mDescriptor;        // effect descriptor
-     int32_t                 mId;                // system wide unique effect engine instance ID
-     Mutex                   mLock;              // Mutex for mEnabled access
-
-     String16                mOpPackageName;     // The package name used for app op checks.
-
-     // IEffectClient
-     virtual void controlStatusChanged(bool controlGranted);
-     virtual void enableStatusChanged(bool enabled);
-     virtual void commandExecuted(uint32_t cmdCode,
-             uint32_t cmdSize,
-             void *pCmdData,
-             uint32_t replySize,
-             void *pReplyData);
-
-private:
-
-     // Implements the IEffectClient interface
-    class EffectClient :
-        public android::BnEffectClient, public android::IBinder::DeathRecipient
-    {
-    public:
-
-        EffectClient(AudioEffect *effect) : mEffect(effect){}
-
-        // IEffectClient
-        virtual void controlStatusChanged(bool controlGranted) {
-            sp<AudioEffect> effect = mEffect.promote();
-            if (effect != 0) {
-                effect->controlStatusChanged(controlGranted);
-            }
-        }
-        virtual void enableStatusChanged(bool enabled) {
-            sp<AudioEffect> effect = mEffect.promote();
-            if (effect != 0) {
-                effect->enableStatusChanged(enabled);
-            }
-        }
-        virtual void commandExecuted(uint32_t cmdCode,
-                                     uint32_t cmdSize,
-                                     void *pCmdData,
-                                     uint32_t replySize,
-                                     void *pReplyData) {
-            sp<AudioEffect> effect = mEffect.promote();
-            if (effect != 0) {
-                effect->commandExecuted(
-                    cmdCode, cmdSize, pCmdData, replySize, pReplyData);
-            }
-        }
-
-        // IBinder::DeathRecipient
-        virtual void binderDied(const wp<IBinder>& who) {
-            sp<AudioEffect> effect = mEffect.promote();
-            if (effect != 0) {
-                effect->binderDied();
-            }
-        }
-
-    private:
-        wp<AudioEffect> mEffect;
-    };
-
-    void binderDied();
-
-    sp<IEffect>             mIEffect;           // IEffect binder interface
-    sp<EffectClient>        mIEffectClient;     // IEffectClient implementation
-    sp<IMemory>             mCblkMemory;        // shared memory for deferred parameter setting
-    effect_param_cblk_t*    mCblk;              // control block for deferred parameter setting
-    pid_t                   mClientPid;
-};
-
-
-}; // namespace android
-
-#endif // ANDROID_AUDIOEFFECT_H
diff --git a/include/media/AudioEffect.h b/include/media/AudioEffect.h
new file mode 120000
index 0000000..bf52955
--- /dev/null
+++ b/include/media/AudioEffect.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/AudioEffect.h
\ No newline at end of file
diff --git a/include/media/AudioIoDescriptor.h b/include/media/AudioIoDescriptor.h
new file mode 120000
index 0000000..68f54c9
--- /dev/null
+++ b/include/media/AudioIoDescriptor.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/AudioIoDescriptor.h
\ No newline at end of file
diff --git a/include/media/AudioMixer.h b/include/media/AudioMixer.h
new file mode 120000
index 0000000..de839c6
--- /dev/null
+++ b/include/media/AudioMixer.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/AudioMixer.h
\ No newline at end of file
diff --git a/include/media/AudioParameter.h b/include/media/AudioParameter.h
deleted file mode 100644
index 891bc4b..0000000
--- a/include/media/AudioParameter.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright (C) 2008-2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIOPARAMETER_H_
-#define ANDROID_AUDIOPARAMETER_H_
-
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/String8.h>
-
-namespace android {
-
-class AudioParameter {
-
-public:
-    AudioParameter() {}
-    AudioParameter(const String8& keyValuePairs);
-    virtual ~AudioParameter();
-
-    // reserved parameter keys for changing standard parameters with setParameters() function.
-    // Using these keys is mandatory for AudioFlinger to properly monitor audio output/input
-    // configuration changes and act accordingly.
-    //  keyRouting: to change audio routing, value is an int in audio_devices_t
-    //  keySamplingRate: to change sampling rate routing, value is an int
-    //  keyFormat: to change audio format, value is an int in audio_format_t
-    //  keyChannels: to change audio channel configuration, value is an int in audio_channels_t
-    //  keyFrameCount: to change audio output frame count, value is an int
-    //  keyInputSource: to change audio input source, value is an int in audio_source_t
-    //     (defined in media/mediarecorder.h)
-    //  keyScreenState: either "on" or "off"
-    static const char * const keyRouting;
-    static const char * const keySamplingRate;
-    static const char * const keyFormat;
-    static const char * const keyChannels;
-    static const char * const keyFrameCount;
-    static const char * const keyInputSource;
-    static const char * const keyScreenState;
-
-    String8 toString();
-
-    status_t add(const String8& key, const String8& value);
-    status_t addInt(const String8& key, const int value);
-    status_t addFloat(const String8& key, const float value);
-
-    status_t remove(const String8& key);
-
-    status_t get(const String8& key, String8& value);
-    status_t getInt(const String8& key, int& value);
-    status_t getFloat(const String8& key, float& value);
-    status_t getAt(size_t index, String8& key, String8& value);
-
-    size_t size() { return mParameters.size(); }
-
-private:
-    String8 mKeyValuePairs;
-    KeyedVector <String8, String8> mParameters;
-};
-
-};  // namespace android
-
-#endif  /*ANDROID_AUDIOPARAMETER_H_*/
diff --git a/include/media/AudioParameter.h b/include/media/AudioParameter.h
new file mode 120000
index 0000000..a5889e5
--- /dev/null
+++ b/include/media/AudioParameter.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/AudioParameter.h
\ No newline at end of file
diff --git a/include/media/AudioPolicy.h b/include/media/AudioPolicy.h
deleted file mode 100644
index 8528c7a..0000000
--- a/include/media/AudioPolicy.h
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-
-#ifndef ANDROID_AUDIO_POLICY_H
-#define ANDROID_AUDIO_POLICY_H
-
-#include <system/audio.h>
-#include <system/audio_policy.h>
-#include <binder/Parcel.h>
-#include <utils/String8.h>
-#include <utils/Vector.h>
-
-namespace android {
-
-// Keep in sync with AudioMix.java, AudioMixingRule.java, AudioPolicyConfig.java
-#define RULE_EXCLUSION_MASK 0x8000
-#define RULE_MATCH_ATTRIBUTE_USAGE           0x1
-#define RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET (0x1 << 1)
-#define RULE_MATCH_UID                      (0x1 << 2)
-#define RULE_EXCLUDE_ATTRIBUTE_USAGE  (RULE_EXCLUSION_MASK|RULE_MATCH_ATTRIBUTE_USAGE)
-#define RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET \
-                                      (RULE_EXCLUSION_MASK|RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET)
-#define RULE_EXCLUDE_UID              (RULE_EXCLUSION_MASK|RULE_MATCH_UID)
-
-#define MIX_TYPE_INVALID -1
-#define MIX_TYPE_PLAYERS 0
-#define MIX_TYPE_RECORDERS 1
-
-// definition of the different events that can be reported on a dynamic policy from
-//   AudioSystem's implementation of the AudioPolicyClient interface
-// keep in sync with AudioSystem.java
-#define DYNAMIC_POLICY_EVENT_MIX_STATE_UPDATE 0
-
-#define MIX_STATE_DISABLED -1
-#define MIX_STATE_IDLE 0
-#define MIX_STATE_MIXING 1
-
-#define MIX_ROUTE_FLAG_RENDER 0x1
-#define MIX_ROUTE_FLAG_LOOP_BACK (0x1 << 1)
-#define MIX_ROUTE_FLAG_ALL (MIX_ROUTE_FLAG_RENDER | MIX_ROUTE_FLAG_LOOP_BACK)
-
-#define MAX_MIXES_PER_POLICY 10
-#define MAX_CRITERIA_PER_MIX 20
-
-class AudioMixMatchCriterion {
-public:
-    AudioMixMatchCriterion() {}
-    AudioMixMatchCriterion(audio_usage_t usage, audio_source_t source, uint32_t rule);
-
-    status_t readFromParcel(Parcel *parcel);
-    status_t writeToParcel(Parcel *parcel) const;
-
-    union {
-        audio_usage_t   mUsage;
-        audio_source_t  mSource;
-        uid_t           mUid;
-    } mValue;
-    uint32_t        mRule;
-};
-
-class AudioMix {
-public:
-    // flag on an AudioMix indicating the activity on this mix (IDLE, MIXING)
-    //   must be reported through the AudioPolicyClient interface
-    static const uint32_t kCbFlagNotifyActivity = 0x1;
-
-    AudioMix() {}
-    AudioMix(Vector<AudioMixMatchCriterion> criteria, uint32_t mixType, audio_config_t format,
-             uint32_t routeFlags, String8 registrationId, uint32_t flags) :
-        mCriteria(criteria), mMixType(mixType), mFormat(format),
-        mRouteFlags(routeFlags), mDeviceAddress(registrationId), mCbFlags(flags){}
-
-    status_t readFromParcel(Parcel *parcel);
-    status_t writeToParcel(Parcel *parcel) const;
-
-    Vector<AudioMixMatchCriterion> mCriteria;
-    uint32_t        mMixType;
-    audio_config_t  mFormat;
-    uint32_t        mRouteFlags;
-    audio_devices_t mDeviceType;
-    String8         mDeviceAddress;
-    uint32_t        mCbFlags; // flags indicating which callbacks to use, see kCbFlag*
-};
-
-
-// definitions for audio recording configuration updates
-// which update type is reported
-#define RECORD_CONFIG_EVENT_NONE -1
-#define RECORD_CONFIG_EVENT_START 1
-#define RECORD_CONFIG_EVENT_STOP  0
-
-}; // namespace android
-
-#endif  // ANDROID_AUDIO_POLICY_H
diff --git a/include/media/AudioPolicy.h b/include/media/AudioPolicy.h
new file mode 120000
index 0000000..dd4cd53
--- /dev/null
+++ b/include/media/AudioPolicy.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/AudioPolicy.h
\ No newline at end of file
diff --git a/include/media/AudioPolicyHelper.h b/include/media/AudioPolicyHelper.h
deleted file mode 100644
index 79231be..0000000
--- a/include/media/AudioPolicyHelper.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#ifndef AUDIO_POLICY_HELPER_H_
-#define AUDIO_POLICY_HELPER_H_
-
-#include <system/audio.h>
-
-static audio_stream_type_t audio_attributes_to_stream_type(const audio_attributes_t *attr)
-{
-    // flags to stream type mapping
-    if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) {
-        return AUDIO_STREAM_ENFORCED_AUDIBLE;
-    }
-    if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) {
-        return AUDIO_STREAM_BLUETOOTH_SCO;
-    }
-
-    // usage to stream type mapping
-    switch (attr->usage) {
-    case AUDIO_USAGE_MEDIA:
-    case AUDIO_USAGE_GAME:
-    case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY:
-    case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:
-        return AUDIO_STREAM_MUSIC;
-    case AUDIO_USAGE_ASSISTANCE_SONIFICATION:
-        return AUDIO_STREAM_SYSTEM;
-    case AUDIO_USAGE_VOICE_COMMUNICATION:
-        return AUDIO_STREAM_VOICE_CALL;
-
-    case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING:
-        return AUDIO_STREAM_DTMF;
-
-    case AUDIO_USAGE_ALARM:
-        return AUDIO_STREAM_ALARM;
-    case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE:
-        return AUDIO_STREAM_RING;
-
-    case AUDIO_USAGE_NOTIFICATION:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED:
-    case AUDIO_USAGE_NOTIFICATION_EVENT:
-        return AUDIO_STREAM_NOTIFICATION;
-
-    case AUDIO_USAGE_UNKNOWN:
-    default:
-        return AUDIO_STREAM_MUSIC;
-    }
-}
-
-static void stream_type_to_audio_attributes(audio_stream_type_t streamType,
-                                     audio_attributes_t *attr) {
-    memset(attr, 0, sizeof(audio_attributes_t));
-
-    switch (streamType) {
-    case AUDIO_STREAM_DEFAULT:
-    case AUDIO_STREAM_MUSIC:
-        attr->content_type = AUDIO_CONTENT_TYPE_MUSIC;
-        attr->usage = AUDIO_USAGE_MEDIA;
-        break;
-    case AUDIO_STREAM_VOICE_CALL:
-        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
-        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION;
-        break;
-    case AUDIO_STREAM_ENFORCED_AUDIBLE:
-        attr->flags  |= AUDIO_FLAG_AUDIBILITY_ENFORCED;
-        // intended fall through, attributes in common with STREAM_SYSTEM
-    case AUDIO_STREAM_SYSTEM:
-        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
-        attr->usage = AUDIO_USAGE_ASSISTANCE_SONIFICATION;
-        break;
-    case AUDIO_STREAM_RING:
-        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
-        attr->usage = AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE;
-        break;
-    case AUDIO_STREAM_ALARM:
-        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
-        attr->usage = AUDIO_USAGE_ALARM;
-        break;
-    case AUDIO_STREAM_NOTIFICATION:
-        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
-        attr->usage = AUDIO_USAGE_NOTIFICATION;
-        break;
-    case AUDIO_STREAM_BLUETOOTH_SCO:
-        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
-        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION;
-        attr->flags |= AUDIO_FLAG_SCO;
-        break;
-    case AUDIO_STREAM_DTMF:
-        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
-        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING;
-        break;
-    case AUDIO_STREAM_TTS:
-        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
-        attr->usage = AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY;
-        break;
-    default:
-        ALOGE("invalid stream type %d when converting to attributes", streamType);
-    }
-}
-
-#endif //AUDIO_POLICY_HELPER_H_
diff --git a/include/media/AudioPolicyHelper.h b/include/media/AudioPolicyHelper.h
new file mode 120000
index 0000000..558657e
--- /dev/null
+++ b/include/media/AudioPolicyHelper.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/AudioPolicyHelper.h
\ No newline at end of file
diff --git a/include/media/AudioRecord.h b/include/media/AudioRecord.h
deleted file mode 100644
index 63076e9..0000000
--- a/include/media/AudioRecord.h
+++ /dev/null
@@ -1,657 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIORECORD_H
-#define ANDROID_AUDIORECORD_H
-
-#include <cutils/sched_policy.h>
-#include <media/AudioSystem.h>
-#include <media/AudioTimestamp.h>
-#include <media/IAudioRecord.h>
-#include <media/Modulo.h>
-#include <utils/threads.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-struct audio_track_cblk_t;
-class AudioRecordClientProxy;
-
-// ----------------------------------------------------------------------------
-
-class AudioRecord : public RefBase
-{
-public:
-
-    /* Events used by AudioRecord callback function (callback_t).
-     * Keep in sync with frameworks/base/media/java/android/media/AudioRecord.java NATIVE_EVENT_*.
-     */
-    enum event_type {
-        EVENT_MORE_DATA = 0,        // Request to read available data from buffer.
-                                    // If this event is delivered but the callback handler
-                                    // does not want to read the available data, the handler must
-                                    // explicitly ignore the event by setting frameCount to zero.
-        EVENT_OVERRUN = 1,          // Buffer overrun occurred.
-        EVENT_MARKER = 2,           // Record head is at the specified marker position
-                                    // (See setMarkerPosition()).
-        EVENT_NEW_POS = 3,          // Record head is at a new position
-                                    // (See setPositionUpdatePeriod()).
-        EVENT_NEW_IAUDIORECORD = 4, // IAudioRecord was re-created, either due to re-routing and
-                                    // voluntary invalidation by mediaserver, or mediaserver crash.
-    };
-
-    /* Client should declare a Buffer and pass address to obtainBuffer()
-     * and releaseBuffer().  See also callback_t for EVENT_MORE_DATA.
-     */
-
-    class Buffer
-    {
-    public:
-        // FIXME use m prefix
-        size_t      frameCount;     // number of sample frames corresponding to size;
-                                    // on input to obtainBuffer() it is the number of frames desired
-                                    // on output from obtainBuffer() it is the number of available
-                                    //    frames to be read
-                                    // on input to releaseBuffer() it is currently ignored
-
-        size_t      size;           // input/output in bytes == frameCount * frameSize
-                                    // on input to obtainBuffer() it is ignored
-                                    // on output from obtainBuffer() it is the number of available
-                                    //    bytes to be read, which is frameCount * frameSize
-                                    // on input to releaseBuffer() it is the number of bytes to
-                                    //    release
-                                    // FIXME This is redundant with respect to frameCount.  Consider
-                                    //    removing size and making frameCount the primary field.
-
-        union {
-            void*       raw;
-            short*      i16;        // signed 16-bit
-            int8_t*     i8;         // unsigned 8-bit, offset by 0x80
-                                    // input to obtainBuffer(): unused, output: pointer to buffer
-        };
-    };
-
-    /* As a convenience, if a callback is supplied, a handler thread
-     * is automatically created with the appropriate priority. This thread
-     * invokes the callback when a new buffer becomes available or various conditions occur.
-     * Parameters:
-     *
-     * event:   type of event notified (see enum AudioRecord::event_type).
-     * user:    Pointer to context for use by the callback receiver.
-     * info:    Pointer to optional parameter according to event type:
-     *          - EVENT_MORE_DATA: pointer to AudioRecord::Buffer struct. The callback must not read
-     *                             more bytes than indicated by 'size' field and update 'size' if
-     *                             fewer bytes are consumed.
-     *          - EVENT_OVERRUN: unused.
-     *          - EVENT_MARKER: pointer to const uint32_t containing the marker position in frames.
-     *          - EVENT_NEW_POS: pointer to const uint32_t containing the new position in frames.
-     *          - EVENT_NEW_IAUDIORECORD: unused.
-     */
-
-    typedef void (*callback_t)(int event, void* user, void *info);
-
-    /* Returns the minimum frame count required for the successful creation of
-     * an AudioRecord object.
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - NO_INIT: audio server or audio hardware not initialized
-     *  - BAD_VALUE: unsupported configuration
-     * frameCount is guaranteed to be non-zero if status is NO_ERROR,
-     * and is undefined otherwise.
-     * FIXME This API assumes a route, and so should be deprecated.
-     */
-
-     static status_t getMinFrameCount(size_t* frameCount,
-                                      uint32_t sampleRate,
-                                      audio_format_t format,
-                                      audio_channel_mask_t channelMask);
-
-    /* How data is transferred from AudioRecord
-     */
-    enum transfer_type {
-        TRANSFER_DEFAULT,   // not specified explicitly; determine from the other parameters
-        TRANSFER_CALLBACK,  // callback EVENT_MORE_DATA
-        TRANSFER_OBTAIN,    // call obtainBuffer() and releaseBuffer()
-        TRANSFER_SYNC,      // synchronous read()
-    };
-
-    /* Constructs an uninitialized AudioRecord. No connection with
-     * AudioFlinger takes place.  Use set() after this.
-     *
-     * Parameters:
-     *
-     * opPackageName:      The package name used for app ops.
-     */
-                        AudioRecord(const String16& opPackageName);
-
-    /* Creates an AudioRecord object and registers it with AudioFlinger.
-     * Once created, the track needs to be started before it can be used.
-     * Unspecified values are set to appropriate default values.
-     *
-     * Parameters:
-     *
-     * inputSource:        Select the audio input to record from (e.g. AUDIO_SOURCE_DEFAULT).
-     * sampleRate:         Data sink sampling rate in Hz.  Zero means to use the source sample rate.
-     * format:             Audio format (e.g AUDIO_FORMAT_PCM_16_BIT for signed
-     *                     16 bits per sample).
-     * channelMask:        Channel mask, such that audio_is_input_channel(channelMask) is true.
-     * opPackageName:      The package name used for app ops.
-     * frameCount:         Minimum size of track PCM buffer in frames. This defines the
-     *                     application's contribution to the
-     *                     latency of the track.  The actual size selected by the AudioRecord could
-     *                     be larger if the requested size is not compatible with current audio HAL
-     *                     latency.  Zero means to use a default value.
-     * cbf:                Callback function. If not null, this function is called periodically
-     *                     to consume new data in TRANSFER_CALLBACK mode
-     *                     and inform of marker, position updates, etc.
-     * user:               Context for use by the callback receiver.
-     * notificationFrames: The callback function is called each time notificationFrames PCM
-     *                     frames are ready in record track output buffer.
-     * sessionId:          Not yet supported.
-     * transferType:       How data is transferred from AudioRecord.
-     * flags:              See comments on audio_input_flags_t in <system/audio.h>
-     * pAttributes:        If not NULL, supersedes inputSource for use case selection.
-     * threadCanCallJava:  Not present in parameter list, and so is fixed at false.
-     */
-
-                        AudioRecord(audio_source_t inputSource,
-                                    uint32_t sampleRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    const String16& opPackageName,
-                                    size_t frameCount = 0,
-                                    callback_t cbf = NULL,
-                                    void* user = NULL,
-                                    uint32_t notificationFrames = 0,
-                                    audio_session_t sessionId = AUDIO_SESSION_ALLOCATE,
-                                    transfer_type transferType = TRANSFER_DEFAULT,
-                                    audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
-                                    int uid = -1,
-                                    pid_t pid = -1,
-                                    const audio_attributes_t* pAttributes = NULL);
-
-    /* Terminates the AudioRecord and unregisters it from AudioFlinger.
-     * Also destroys all resources associated with the AudioRecord.
-     */
-protected:
-                        virtual ~AudioRecord();
-public:
-
-    /* Initialize an AudioRecord that was created using the AudioRecord() constructor.
-     * Don't call set() more than once, or after an AudioRecord() constructor that takes parameters.
-     * set() is not multi-thread safe.
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful intialization
-     *  - INVALID_OPERATION: AudioRecord is already initialized or record device is already in use
-     *  - BAD_VALUE: invalid parameter (channelMask, format, sampleRate...)
-     *  - NO_INIT: audio server or audio hardware not initialized
-     *  - PERMISSION_DENIED: recording is not allowed for the requesting process
-     * If status is not equal to NO_ERROR, don't call any other APIs on this AudioRecord.
-     *
-     * Parameters not listed in the AudioRecord constructors above:
-     *
-     * threadCanCallJava:  Whether callbacks are made from an attached thread and thus can call JNI.
-     */
-            status_t    set(audio_source_t inputSource,
-                            uint32_t sampleRate,
-                            audio_format_t format,
-                            audio_channel_mask_t channelMask,
-                            size_t frameCount = 0,
-                            callback_t cbf = NULL,
-                            void* user = NULL,
-                            uint32_t notificationFrames = 0,
-                            bool threadCanCallJava = false,
-                            audio_session_t sessionId = AUDIO_SESSION_ALLOCATE,
-                            transfer_type transferType = TRANSFER_DEFAULT,
-                            audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
-                            int uid = -1,
-                            pid_t pid = -1,
-                            const audio_attributes_t* pAttributes = NULL);
-
-    /* Result of constructing the AudioRecord. This must be checked for successful initialization
-     * before using any AudioRecord API (except for set()), because using
-     * an uninitialized AudioRecord produces undefined results.
-     * See set() method above for possible return codes.
-     */
-            status_t    initCheck() const   { return mStatus; }
-
-    /* Returns this track's estimated latency in milliseconds.
-     * This includes the latency due to AudioRecord buffer size, resampling if applicable,
-     * and audio hardware driver.
-     */
-            uint32_t    latency() const     { return mLatency; }
-
-   /* getters, see constructor and set() */
-
-            audio_format_t format() const   { return mFormat; }
-            uint32_t    channelCount() const    { return mChannelCount; }
-            size_t      frameCount() const  { return mFrameCount; }
-            size_t      frameSize() const   { return mFrameSize; }
-            audio_source_t inputSource() const  { return mAttributes.source; }
-
-    /* After it's created the track is not active. Call start() to
-     * make it active. If set, the callback will start being called.
-     * If event is not AudioSystem::SYNC_EVENT_NONE, the capture start will be delayed until
-     * the specified event occurs on the specified trigger session.
-     */
-            status_t    start(AudioSystem::sync_event_t event = AudioSystem::SYNC_EVENT_NONE,
-                              audio_session_t triggerSession = AUDIO_SESSION_NONE);
-
-    /* Stop a track.  The callback will cease being called.  Note that obtainBuffer() still
-     * works and will drain buffers until the pool is exhausted, and then will return WOULD_BLOCK.
-     */
-            void        stop();
-            bool        stopped() const;
-
-    /* Return the sink sample rate for this record track in Hz.
-     * If specified as zero in constructor or set(), this will be the source sample rate.
-     * Unlike AudioTrack, the sample rate is const after initialization, so doesn't need a lock.
-     */
-            uint32_t    getSampleRate() const   { return mSampleRate; }
-
-    /* Sets marker position. When record reaches the number of frames specified,
-     * a callback with event type EVENT_MARKER is called. Calling setMarkerPosition
-     * with marker == 0 cancels marker notification callback.
-     * To set a marker at a position which would compute as 0,
-     * a workaround is to set the marker at a nearby position such as ~0 or 1.
-     * If the AudioRecord has been opened with no callback function associated,
-     * the operation will fail.
-     *
-     * Parameters:
-     *
-     * marker:   marker position expressed in wrapping (overflow) frame units,
-     *           like the return value of getPosition().
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioRecord has no callback installed.
-     */
-            status_t    setMarkerPosition(uint32_t marker);
-            status_t    getMarkerPosition(uint32_t *marker) const;
-
-    /* Sets position update period. Every time the number of frames specified has been recorded,
-     * a callback with event type EVENT_NEW_POS is called.
-     * Calling setPositionUpdatePeriod with updatePeriod == 0 cancels new position notification
-     * callback.
-     * If the AudioRecord has been opened with no callback function associated,
-     * the operation will fail.
-     * Extremely small values may be rounded up to a value the implementation can support.
-     *
-     * Parameters:
-     *
-     * updatePeriod:  position update notification period expressed in frames.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioRecord has no callback installed.
-     */
-            status_t    setPositionUpdatePeriod(uint32_t updatePeriod);
-            status_t    getPositionUpdatePeriod(uint32_t *updatePeriod) const;
-
-    /* Return the total number of frames recorded since recording started.
-     * The counter will wrap (overflow) periodically, e.g. every ~27 hours at 44.1 kHz.
-     * It is reset to zero by stop().
-     *
-     * Parameters:
-     *
-     *  position:  Address where to return record head position.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - BAD_VALUE:  position is NULL
-     */
-            status_t    getPosition(uint32_t *position) const;
-
-    /* Return the record timestamp.
-     *
-     * Parameters:
-     *  timestamp: A pointer to the timestamp to be filled.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - BAD_VALUE: timestamp is NULL
-     */
-            status_t getTimestamp(ExtendedTimestamp *timestamp);
-
-    /* Returns a handle on the audio input used by this AudioRecord.
-     *
-     * Parameters:
-     *  none.
-     *
-     * Returned value:
-     *  handle on audio hardware input
-     */
-// FIXME The only known public caller is frameworks/opt/net/voip/src/jni/rtp/AudioGroup.cpp
-            audio_io_handle_t    getInput() const __attribute__((__deprecated__))
-                                                { return getInputPrivate(); }
-private:
-            audio_io_handle_t    getInputPrivate() const;
-public:
-
-    /* Returns the audio session ID associated with this AudioRecord.
-     *
-     * Parameters:
-     *  none.
-     *
-     * Returned value:
-     *  AudioRecord session ID.
-     *
-     * No lock needed because session ID doesn't change after first set().
-     */
-            audio_session_t getSessionId() const { return mSessionId; }
-
-    /* Public API for TRANSFER_OBTAIN mode.
-     * Obtains a buffer of up to "audioBuffer->frameCount" full frames.
-     * After draining these frames of data, the caller should release them with releaseBuffer().
-     * If the track buffer is not empty, obtainBuffer() returns as many contiguous
-     * full frames as are available immediately.
-     *
-     * If nonContig is non-NULL, it is an output parameter that will be set to the number of
-     * additional non-contiguous frames that are predicted to be available immediately,
-     * if the client were to release the first frames and then call obtainBuffer() again.
-     * This value is only a prediction, and needs to be confirmed.
-     * It will be set to zero for an error return.
-     *
-     * If the track buffer is empty and track is stopped, obtainBuffer() returns WOULD_BLOCK
-     * regardless of the value of waitCount.
-     * If the track buffer is empty and track is not stopped, obtainBuffer() blocks with a
-     * maximum timeout based on waitCount; see chart below.
-     * Buffers will be returned until the pool
-     * is exhausted, at which point obtainBuffer() will either block
-     * or return WOULD_BLOCK depending on the value of the "waitCount"
-     * parameter.
-     *
-     * Interpretation of waitCount:
-     *  +n  limits wait time to n * WAIT_PERIOD_MS,
-     *  -1  causes an (almost) infinite wait time,
-     *   0  non-blocking.
-     *
-     * Buffer fields
-     * On entry:
-     *  frameCount  number of frames requested
-     *  size        ignored
-     *  raw         ignored
-     * After error return:
-     *  frameCount  0
-     *  size        0
-     *  raw         undefined
-     * After successful return:
-     *  frameCount  actual number of frames available, <= number requested
-     *  size        actual number of bytes available
-     *  raw         pointer to the buffer
-     */
-
-            status_t    obtainBuffer(Buffer* audioBuffer, int32_t waitCount,
-                                size_t *nonContig = NULL);
-
-            // Explicit Routing
-    /**
-     * TODO Document this method.
-     */
-            status_t setInputDevice(audio_port_handle_t deviceId);
-
-    /**
-     * TODO Document this method.
-     */
-            audio_port_handle_t getInputDevice();
-
-     /* Returns the ID of the audio device actually used by the input to which this AudioRecord
-      * is attached.
-      * A value of AUDIO_PORT_HANDLE_NONE indicates the AudioRecord is not attached to any input.
-      *
-      * Parameters:
-      *  none.
-      */
-     audio_port_handle_t getRoutedDeviceId();
-
-    /* Add an AudioDeviceCallback. The caller will be notified when the audio device
-     * to which this AudioRecord is routed is updated.
-     * Replaces any previously installed callback.
-     * Parameters:
-     *  callback:  The callback interface
-     * Returns NO_ERROR if successful.
-     *         INVALID_OPERATION if the same callback is already installed.
-     *         NO_INIT or PREMISSION_DENIED if AudioFlinger service is not reachable
-     *         BAD_VALUE if the callback is NULL
-     */
-            status_t addAudioDeviceCallback(
-                    const sp<AudioSystem::AudioDeviceCallback>& callback);
-
-    /* remove an AudioDeviceCallback.
-     * Parameters:
-     *  callback:  The callback interface
-     * Returns NO_ERROR if successful.
-     *         INVALID_OPERATION if the callback is not installed
-     *         BAD_VALUE if the callback is NULL
-     */
-            status_t removeAudioDeviceCallback(
-                    const sp<AudioSystem::AudioDeviceCallback>& callback);
-
-private:
-    /* If nonContig is non-NULL, it is an output parameter that will be set to the number of
-     * additional non-contiguous frames that are predicted to be available immediately,
-     * if the client were to release the first frames and then call obtainBuffer() again.
-     * This value is only a prediction, and needs to be confirmed.
-     * It will be set to zero for an error return.
-     * FIXME We could pass an array of Buffers instead of only one Buffer to obtainBuffer(),
-     * in case the requested amount of frames is in two or more non-contiguous regions.
-     * FIXME requested and elapsed are both relative times.  Consider changing to absolute time.
-     */
-            status_t    obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
-                                     struct timespec *elapsed = NULL, size_t *nonContig = NULL);
-public:
-
-    /* Public API for TRANSFER_OBTAIN mode.
-     * Release an emptied buffer of "audioBuffer->frameCount" frames for AudioFlinger to re-fill.
-     *
-     * Buffer fields:
-     *  frameCount  currently ignored but recommend to set to actual number of frames consumed
-     *  size        actual number of bytes consumed, must be multiple of frameSize
-     *  raw         ignored
-     */
-            void        releaseBuffer(const Buffer* audioBuffer);
-
-    /* As a convenience we provide a read() interface to the audio buffer.
-     * Input parameter 'size' is in byte units.
-     * This is implemented on top of obtainBuffer/releaseBuffer. For best
-     * performance use callbacks. Returns actual number of bytes read >= 0,
-     * or one of the following negative status codes:
-     *      INVALID_OPERATION   AudioRecord is configured for streaming mode
-     *      BAD_VALUE           size is invalid
-     *      WOULD_BLOCK         when obtainBuffer() returns same, or
-     *                          AudioRecord was stopped during the read
-     *      or any other error code returned by IAudioRecord::start() or restoreRecord_l().
-     * Default behavior is to only return when all data has been transferred. Set 'blocking' to
-     * false for the method to return immediately without waiting to try multiple times to read
-     * the full content of the buffer.
-     */
-            ssize_t     read(void* buffer, size_t size, bool blocking = true);
-
-    /* Return the number of input frames lost in the audio driver since the last call of this
-     * function.  Audio driver is expected to reset the value to 0 and restart counting upon
-     * returning the current value by this function call.  Such loss typically occurs when the
-     * user space process is blocked longer than the capacity of audio driver buffers.
-     * Units: the number of input audio frames.
-     * FIXME The side-effect of resetting the counter may be incompatible with multi-client.
-     * Consider making it more like AudioTrack::getUnderrunFrames which doesn't have side effects.
-     */
-            uint32_t    getInputFramesLost() const;
-
-    /* Get the flags */
-            audio_input_flags_t getFlags() const { AutoMutex _l(mLock); return mFlags; }
-
-private:
-    /* copying audio record objects is not allowed */
-                        AudioRecord(const AudioRecord& other);
-            AudioRecord& operator = (const AudioRecord& other);
-
-    /* a small internal class to handle the callback */
-    class AudioRecordThread : public Thread
-    {
-    public:
-        AudioRecordThread(AudioRecord& receiver, bool bCanCallJava = false);
-
-        // Do not call Thread::requestExitAndWait() without first calling requestExit().
-        // Thread::requestExitAndWait() is not virtual, and the implementation doesn't do enough.
-        virtual void        requestExit();
-
-                void        pause();    // suspend thread from execution at next loop boundary
-                void        resume();   // allow thread to execute, if not requested to exit
-                void        wake();     // wake to handle changed notification conditions.
-
-    private:
-                void        pauseInternal(nsecs_t ns = 0LL);
-                                        // like pause(), but only used internally within thread
-
-        friend class AudioRecord;
-        virtual bool        threadLoop();
-        AudioRecord&        mReceiver;
-        virtual ~AudioRecordThread();
-        Mutex               mMyLock;    // Thread::mLock is private
-        Condition           mMyCond;    // Thread::mThreadExitedCondition is private
-        bool                mPaused;    // whether thread is requested to pause at next loop entry
-        bool                mPausedInt; // whether thread internally requests pause
-        nsecs_t             mPausedNs;  // if mPausedInt then associated timeout, otherwise ignored
-        bool                mIgnoreNextPausedInt;   // skip any internal pause and go immediately
-                                        // to processAudioBuffer() as state may have changed
-                                        // since pause time calculated.
-    };
-
-            // body of AudioRecordThread::threadLoop()
-            // returns the maximum amount of time before we would like to run again, where:
-            //      0           immediately
-            //      > 0         no later than this many nanoseconds from now
-            //      NS_WHENEVER still active but no particular deadline
-            //      NS_INACTIVE inactive so don't run again until re-started
-            //      NS_NEVER    never again
-            static const nsecs_t NS_WHENEVER = -1, NS_INACTIVE = -2, NS_NEVER = -3;
-            nsecs_t processAudioBuffer();
-
-            // caller must hold lock on mLock for all _l methods
-
-            status_t openRecord_l(const Modulo<uint32_t> &epoch, const String16& opPackageName);
-
-            // FIXME enum is faster than strcmp() for parameter 'from'
-            status_t restoreRecord_l(const char *from);
-
-    sp<AudioRecordThread>   mAudioRecordThread;
-    mutable Mutex           mLock;
-
-    // Current client state:  false = stopped, true = active.  Protected by mLock.  If more states
-    // are added, consider changing this to enum State { ... } mState as in AudioTrack.
-    bool                    mActive;
-
-    // for client callback handler
-    callback_t              mCbf;                   // callback handler for events, or NULL
-    void*                   mUserData;
-
-    // for notification APIs
-    uint32_t                mNotificationFramesReq; // requested number of frames between each
-                                                    // notification callback
-                                                    // as specified in constructor or set()
-    uint32_t                mNotificationFramesAct; // actual number of frames between each
-                                                    // notification callback
-    bool                    mRefreshRemaining;      // processAudioBuffer() should refresh
-                                                    // mRemainingFrames and mRetryOnPartialBuffer
-
-    // These are private to processAudioBuffer(), and are not protected by a lock
-    uint32_t                mRemainingFrames;       // number of frames to request in obtainBuffer()
-    bool                    mRetryOnPartialBuffer;  // sleep and retry after partial obtainBuffer()
-    uint32_t                mObservedSequence;      // last observed value of mSequence
-
-    Modulo<uint32_t>        mMarkerPosition;        // in wrapping (overflow) frame units
-    bool                    mMarkerReached;
-    Modulo<uint32_t>        mNewPosition;           // in frames
-    uint32_t                mUpdatePeriod;          // in frames, zero means no EVENT_NEW_POS
-
-    status_t                mStatus;
-
-    String16                mOpPackageName;         // The package name used for app ops.
-
-    size_t                  mFrameCount;            // corresponds to current IAudioRecord, value is
-                                                    // reported back by AudioFlinger to the client
-    size_t                  mReqFrameCount;         // frame count to request the first or next time
-                                                    // a new IAudioRecord is needed, non-decreasing
-
-    int64_t                 mFramesRead;            // total frames read. reset to zero after
-                                                    // the start() following stop(). It is not
-                                                    // changed after restoring the track.
-    int64_t                 mFramesReadServerOffset; // An offset to server frames read due to
-                                                    // restoring AudioRecord, or stop/start.
-    // constant after constructor or set()
-    uint32_t                mSampleRate;
-    audio_format_t          mFormat;
-    uint32_t                mChannelCount;
-    size_t                  mFrameSize;         // app-level frame size == AudioFlinger frame size
-    uint32_t                mLatency;           // in ms
-    audio_channel_mask_t    mChannelMask;
-
-    audio_input_flags_t     mFlags;                 // same as mOrigFlags, except for bits that may
-                                                    // be denied by client or server, such as
-                                                    // AUDIO_INPUT_FLAG_FAST.  mLock must be
-                                                    // held to read or write those bits reliably.
-    audio_input_flags_t     mOrigFlags;             // as specified in constructor or set(), const
-
-    audio_session_t         mSessionId;
-    transfer_type           mTransfer;
-
-    // Next 5 fields may be changed if IAudioRecord is re-created, but always != 0
-    // provided the initial set() was successful
-    sp<IAudioRecord>        mAudioRecord;
-    sp<IMemory>             mCblkMemory;
-    audio_track_cblk_t*     mCblk;              // re-load after mLock.unlock()
-    sp<IMemory>             mBufferMemory;
-    audio_io_handle_t       mInput;             // returned by AudioSystem::getInput()
-
-    int                     mPreviousPriority;  // before start()
-    SchedPolicy             mPreviousSchedulingGroup;
-    bool                    mAwaitBoost;    // thread should wait for priority boost before running
-
-    // The proxy should only be referenced while a lock is held because the proxy isn't
-    // multi-thread safe.
-    // An exception is that a blocking ClientProxy::obtainBuffer() may be called without a lock,
-    // provided that the caller also holds an extra reference to the proxy and shared memory to keep
-    // them around in case they are replaced during the obtainBuffer().
-    sp<AudioRecordClientProxy> mProxy;
-
-    bool                    mInOverrun;         // whether recorder is currently in overrun state
-
-private:
-    class DeathNotifier : public IBinder::DeathRecipient {
-    public:
-        DeathNotifier(AudioRecord* audioRecord) : mAudioRecord(audioRecord) { }
-    protected:
-        virtual void        binderDied(const wp<IBinder>& who);
-    private:
-        const wp<AudioRecord> mAudioRecord;
-    };
-
-    sp<DeathNotifier>       mDeathNotifier;
-    uint32_t                mSequence;              // incremented for each new IAudioRecord attempt
-    int                     mClientUid;
-    pid_t                   mClientPid;
-    audio_attributes_t      mAttributes;
-
-    // For Device Selection API
-    //  a value of AUDIO_PORT_HANDLE_NONE indicated default (AudioPolicyManager) routing.
-    audio_port_handle_t    mSelectedDeviceId;
-    sp<AudioSystem::AudioDeviceCallback> mDeviceCallback;
-};
-
-}; // namespace android
-
-#endif // ANDROID_AUDIORECORD_H
diff --git a/include/media/AudioRecord.h b/include/media/AudioRecord.h
new file mode 120000
index 0000000..7939dd3
--- /dev/null
+++ b/include/media/AudioRecord.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/AudioRecord.h
\ No newline at end of file
diff --git a/include/media/AudioResampler.h b/include/media/AudioResampler.h
new file mode 120000
index 0000000..50e12f4
--- /dev/null
+++ b/include/media/AudioResampler.h
@@ -0,0 +1 @@
+../../media/libaudioprocessing/include/AudioResampler.h
\ No newline at end of file
diff --git a/include/media/AudioResamplerPublic.h b/include/media/AudioResamplerPublic.h
new file mode 120000
index 0000000..309c23d
--- /dev/null
+++ b/include/media/AudioResamplerPublic.h
@@ -0,0 +1 @@
+../../media/libaudioprocessing/include/AudioResamplerPublic.h
\ No newline at end of file
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
deleted file mode 100644
index 2e6646a..0000000
--- a/include/media/AudioSystem.h
+++ /dev/null
@@ -1,473 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIOSYSTEM_H_
-#define ANDROID_AUDIOSYSTEM_H_
-
-#include <hardware/audio_effect.h>
-#include <media/AudioPolicy.h>
-#include <media/AudioIoDescriptor.h>
-#include <media/IAudioFlingerClient.h>
-#include <media/IAudioPolicyServiceClient.h>
-#include <system/audio.h>
-#include <system/audio_policy.h>
-#include <utils/Errors.h>
-#include <utils/Mutex.h>
-
-namespace android {
-
-typedef void (*audio_error_callback)(status_t err);
-typedef void (*dynamic_policy_callback)(int event, String8 regId, int val);
-typedef void (*record_config_callback)(int event, audio_session_t session, int source,
-                const audio_config_base_t *clientConfig, const audio_config_base_t *deviceConfig,
-                audio_patch_handle_t patchHandle);
-
-class IAudioFlinger;
-class IAudioPolicyService;
-class String8;
-
-class AudioSystem
-{
-public:
-
-    // FIXME Declare in binder opcode order, similarly to IAudioFlinger.h and IAudioFlinger.cpp
-
-    /* These are static methods to control the system-wide AudioFlinger
-     * only privileged processes can have access to them
-     */
-
-    // mute/unmute microphone
-    static status_t muteMicrophone(bool state);
-    static status_t isMicrophoneMuted(bool *state);
-
-    // set/get master volume
-    static status_t setMasterVolume(float value);
-    static status_t getMasterVolume(float* volume);
-
-    // mute/unmute audio outputs
-    static status_t setMasterMute(bool mute);
-    static status_t getMasterMute(bool* mute);
-
-    // set/get stream volume on specified output
-    static status_t setStreamVolume(audio_stream_type_t stream, float value,
-                                    audio_io_handle_t output);
-    static status_t getStreamVolume(audio_stream_type_t stream, float* volume,
-                                    audio_io_handle_t output);
-
-    // mute/unmute stream
-    static status_t setStreamMute(audio_stream_type_t stream, bool mute);
-    static status_t getStreamMute(audio_stream_type_t stream, bool* mute);
-
-    // set audio mode in audio hardware
-    static status_t setMode(audio_mode_t mode);
-
-    // returns true in *state if tracks are active on the specified stream or have been active
-    // in the past inPastMs milliseconds
-    static status_t isStreamActive(audio_stream_type_t stream, bool *state, uint32_t inPastMs);
-    // returns true in *state if tracks are active for what qualifies as remote playback
-    // on the specified stream or have been active in the past inPastMs milliseconds. Remote
-    // playback isn't mutually exclusive with local playback.
-    static status_t isStreamActiveRemotely(audio_stream_type_t stream, bool *state,
-            uint32_t inPastMs);
-    // returns true in *state if a recorder is currently recording with the specified source
-    static status_t isSourceActive(audio_source_t source, bool *state);
-
-    // set/get audio hardware parameters. The function accepts a list of parameters
-    // key value pairs in the form: key1=value1;key2=value2;...
-    // Some keys are reserved for standard parameters (See AudioParameter class).
-    // The versions with audio_io_handle_t are intended for internal media framework use only.
-    static status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs);
-    static String8  getParameters(audio_io_handle_t ioHandle, const String8& keys);
-    // The versions without audio_io_handle_t are intended for JNI.
-    static status_t setParameters(const String8& keyValuePairs);
-    static String8  getParameters(const String8& keys);
-
-    static void setErrorCallback(audio_error_callback cb);
-    static void setDynPolicyCallback(dynamic_policy_callback cb);
-    static void setRecordConfigCallback(record_config_callback);
-
-    // helper function to obtain AudioFlinger service handle
-    static const sp<IAudioFlinger> get_audio_flinger();
-
-    static float linearToLog(int volume);
-    static int logToLinear(float volume);
-
-    // Returned samplingRate and frameCount output values are guaranteed
-    // to be non-zero if status == NO_ERROR
-    // FIXME This API assumes a route, and so should be deprecated.
-    static status_t getOutputSamplingRate(uint32_t* samplingRate,
-            audio_stream_type_t stream);
-    // FIXME This API assumes a route, and so should be deprecated.
-    static status_t getOutputFrameCount(size_t* frameCount,
-            audio_stream_type_t stream);
-    // FIXME This API assumes a route, and so should be deprecated.
-    static status_t getOutputLatency(uint32_t* latency,
-            audio_stream_type_t stream);
-    // returns the audio HAL sample rate
-    static status_t getSamplingRate(audio_io_handle_t ioHandle,
-                                          uint32_t* samplingRate);
-    // For output threads with a fast mixer, returns the number of frames per normal mixer buffer.
-    // For output threads without a fast mixer, or for input, this is same as getFrameCountHAL().
-    static status_t getFrameCount(audio_io_handle_t ioHandle,
-                                  size_t* frameCount);
-    // returns the audio output latency in ms. Corresponds to
-    // audio_stream_out->get_latency()
-    static status_t getLatency(audio_io_handle_t output,
-                               uint32_t* latency);
-
-    // return status NO_ERROR implies *buffSize > 0
-    // FIXME This API assumes a route, and so should deprecated.
-    static status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
-        audio_channel_mask_t channelMask, size_t* buffSize);
-
-    static status_t setVoiceVolume(float volume);
-
-    // return the number of audio frames written by AudioFlinger to audio HAL and
-    // audio dsp to DAC since the specified output has exited standby.
-    // returned status (from utils/Errors.h) can be:
-    // - NO_ERROR: successful operation, halFrames and dspFrames point to valid data
-    // - INVALID_OPERATION: Not supported on current hardware platform
-    // - BAD_VALUE: invalid parameter
-    // NOTE: this feature is not supported on all hardware platforms and it is
-    // necessary to check returned status before using the returned values.
-    static status_t getRenderPosition(audio_io_handle_t output,
-                                      uint32_t *halFrames,
-                                      uint32_t *dspFrames);
-
-    // return the number of input frames lost by HAL implementation, or 0 if the handle is invalid
-    static uint32_t getInputFramesLost(audio_io_handle_t ioHandle);
-
-    // Allocate a new unique ID for use as an audio session ID or I/O handle.
-    // If unable to contact AudioFlinger, returns AUDIO_UNIQUE_ID_ALLOCATE instead.
-    // FIXME If AudioFlinger were to ever exhaust the unique ID namespace,
-    //       this method could fail by returning either a reserved ID like AUDIO_UNIQUE_ID_ALLOCATE
-    //       or an unspecified existing unique ID.
-    static audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use);
-
-    static void acquireAudioSessionId(audio_session_t audioSession, pid_t pid);
-    static void releaseAudioSessionId(audio_session_t audioSession, pid_t pid);
-
-    // Get the HW synchronization source used for an audio session.
-    // Return a valid source or AUDIO_HW_SYNC_INVALID if an error occurs
-    // or no HW sync source is used.
-    static audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId);
-
-    // Indicate JAVA services are ready (scheduling, power management ...)
-    static status_t systemReady();
-
-    // Returns the number of frames per audio HAL buffer.
-    // Corresponds to audio_stream->get_buffer_size()/audio_stream_in_frame_size() for input.
-    // See also getFrameCount().
-    static status_t getFrameCountHAL(audio_io_handle_t ioHandle,
-                                     size_t* frameCount);
-
-    // Events used to synchronize actions between audio sessions.
-    // For instance SYNC_EVENT_PRESENTATION_COMPLETE can be used to delay recording start until
-    // playback is complete on another audio session.
-    // See definitions in MediaSyncEvent.java
-    enum sync_event_t {
-        SYNC_EVENT_SAME = -1,             // used internally to indicate restart with same event
-        SYNC_EVENT_NONE = 0,
-        SYNC_EVENT_PRESENTATION_COMPLETE,
-
-        //
-        // Define new events here: SYNC_EVENT_START, SYNC_EVENT_STOP, SYNC_EVENT_TIME ...
-        //
-        SYNC_EVENT_CNT,
-    };
-
-    // Timeout for synchronous record start. Prevents from blocking the record thread forever
-    // if the trigger event is not fired.
-    static const uint32_t kSyncRecordStartTimeOutMs = 30000;
-
-    //
-    // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
-    //
-    static status_t setDeviceConnectionState(audio_devices_t device, audio_policy_dev_state_t state,
-                                             const char *device_address, const char *device_name);
-    static audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
-                                                                const char *device_address);
-    static status_t setPhoneState(audio_mode_t state);
-    static status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config);
-    static audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage);
-
-    // Client must successfully hand off the handle reference to AudioFlinger via createTrack(),
-    // or release it with releaseOutput().
-    static audio_io_handle_t getOutput(audio_stream_type_t stream,
-                                        uint32_t samplingRate = 0,
-                                        audio_format_t format = AUDIO_FORMAT_DEFAULT,
-                                        audio_channel_mask_t channelMask = AUDIO_CHANNEL_OUT_STEREO,
-                                        audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                        const audio_offload_info_t *offloadInfo = NULL);
-    static status_t getOutputForAttr(const audio_attributes_t *attr,
-                                     audio_io_handle_t *output,
-                                     audio_session_t session,
-                                     audio_stream_type_t *stream,
-                                     uid_t uid,
-                                     uint32_t samplingRate = 0,
-                                     audio_format_t format = AUDIO_FORMAT_DEFAULT,
-                                     audio_channel_mask_t channelMask = AUDIO_CHANNEL_OUT_STEREO,
-                                     audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                     audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
-                                     const audio_offload_info_t *offloadInfo = NULL);
-    static status_t startOutput(audio_io_handle_t output,
-                                audio_stream_type_t stream,
-                                audio_session_t session);
-    static status_t stopOutput(audio_io_handle_t output,
-                               audio_stream_type_t stream,
-                               audio_session_t session);
-    static void releaseOutput(audio_io_handle_t output,
-                              audio_stream_type_t stream,
-                              audio_session_t session);
-
-    // Client must successfully hand off the handle reference to AudioFlinger via openRecord(),
-    // or release it with releaseInput().
-    static status_t getInputForAttr(const audio_attributes_t *attr,
-                                    audio_io_handle_t *input,
-                                    audio_session_t session,
-                                    pid_t pid,
-                                    uid_t uid,
-                                    uint32_t samplingRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    audio_input_flags_t flags,
-                                    audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE);
-
-    static status_t startInput(audio_io_handle_t input,
-                               audio_session_t session);
-    static status_t stopInput(audio_io_handle_t input,
-                              audio_session_t session);
-    static void releaseInput(audio_io_handle_t input,
-                             audio_session_t session);
-    static status_t initStreamVolume(audio_stream_type_t stream,
-                                      int indexMin,
-                                      int indexMax);
-    static status_t setStreamVolumeIndex(audio_stream_type_t stream,
-                                         int index,
-                                         audio_devices_t device);
-    static status_t getStreamVolumeIndex(audio_stream_type_t stream,
-                                         int *index,
-                                         audio_devices_t device);
-
-    static uint32_t getStrategyForStream(audio_stream_type_t stream);
-    static audio_devices_t getDevicesForStream(audio_stream_type_t stream);
-
-    static audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc);
-    static status_t registerEffect(const effect_descriptor_t *desc,
-                                    audio_io_handle_t io,
-                                    uint32_t strategy,
-                                    audio_session_t session,
-                                    int id);
-    static status_t unregisterEffect(int id);
-    static status_t setEffectEnabled(int id, bool enabled);
-
-    // clear stream to output mapping cache (gStreamOutputMap)
-    // and output configuration cache (gOutputs)
-    static void clearAudioConfigCache();
-
-    static const sp<IAudioPolicyService> get_audio_policy_service();
-
-    // helpers for android.media.AudioManager.getProperty(), see description there for meaning
-    static uint32_t getPrimaryOutputSamplingRate();
-    static size_t getPrimaryOutputFrameCount();
-
-    static status_t setLowRamDevice(bool isLowRamDevice);
-
-    // Check if hw offload is possible for given format, stream type, sample rate,
-    // bit rate, duration, video and streaming or offload property is enabled
-    static bool isOffloadSupported(const audio_offload_info_t& info);
-
-    // check presence of audio flinger service.
-    // returns NO_ERROR if binding to service succeeds, DEAD_OBJECT otherwise
-    static status_t checkAudioFlinger();
-
-    /* List available audio ports and their attributes */
-    static status_t listAudioPorts(audio_port_role_t role,
-                                   audio_port_type_t type,
-                                   unsigned int *num_ports,
-                                   struct audio_port *ports,
-                                   unsigned int *generation);
-
-    /* Get attributes for a given audio port */
-    static status_t getAudioPort(struct audio_port *port);
-
-    /* Create an audio patch between several source and sink ports */
-    static status_t createAudioPatch(const struct audio_patch *patch,
-                                       audio_patch_handle_t *handle);
-
-    /* Release an audio patch */
-    static status_t releaseAudioPatch(audio_patch_handle_t handle);
-
-    /* List existing audio patches */
-    static status_t listAudioPatches(unsigned int *num_patches,
-                                      struct audio_patch *patches,
-                                      unsigned int *generation);
-    /* Set audio port configuration */
-    static status_t setAudioPortConfig(const struct audio_port_config *config);
-
-
-    static status_t acquireSoundTriggerSession(audio_session_t *session,
-                                           audio_io_handle_t *ioHandle,
-                                           audio_devices_t *device);
-    static status_t releaseSoundTriggerSession(audio_session_t session);
-
-    static audio_mode_t getPhoneState();
-
-    static status_t registerPolicyMixes(Vector<AudioMix> mixes, bool registration);
-
-    static status_t startAudioSource(const struct audio_port_config *source,
-                                      const audio_attributes_t *attributes,
-                                      audio_io_handle_t *handle);
-    static status_t stopAudioSource(audio_io_handle_t handle);
-
-    static status_t setMasterMono(bool mono);
-    static status_t getMasterMono(bool *mono);
-
-    // ----------------------------------------------------------------------------
-
-    class AudioPortCallback : public RefBase
-    {
-    public:
-
-                AudioPortCallback() {}
-        virtual ~AudioPortCallback() {}
-
-        virtual void onAudioPortListUpdate() = 0;
-        virtual void onAudioPatchListUpdate() = 0;
-        virtual void onServiceDied() = 0;
-
-    };
-
-    static status_t addAudioPortCallback(const sp<AudioPortCallback>& callback);
-    static status_t removeAudioPortCallback(const sp<AudioPortCallback>& callback);
-
-    class AudioDeviceCallback : public RefBase
-    {
-    public:
-
-                AudioDeviceCallback() {}
-        virtual ~AudioDeviceCallback() {}
-
-        virtual void onAudioDeviceUpdate(audio_io_handle_t audioIo,
-                                         audio_port_handle_t deviceId) = 0;
-    };
-
-    static status_t addAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
-                                           audio_io_handle_t audioIo);
-    static status_t removeAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
-                                              audio_io_handle_t audioIo);
-
-    static audio_port_handle_t getDeviceIdForIo(audio_io_handle_t audioIo);
-
-private:
-
-    class AudioFlingerClient: public IBinder::DeathRecipient, public BnAudioFlingerClient
-    {
-    public:
-        AudioFlingerClient() :
-            mInBuffSize(0), mInSamplingRate(0),
-            mInFormat(AUDIO_FORMAT_DEFAULT), mInChannelMask(AUDIO_CHANNEL_NONE) {
-        }
-
-        void clearIoCache();
-        status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
-                                    audio_channel_mask_t channelMask, size_t* buffSize);
-        sp<AudioIoDescriptor> getIoDescriptor(audio_io_handle_t ioHandle);
-
-        // DeathRecipient
-        virtual void binderDied(const wp<IBinder>& who);
-
-        // IAudioFlingerClient
-
-        // indicate a change in the configuration of an output or input: keeps the cached
-        // values for output/input parameters up-to-date in client process
-        virtual void ioConfigChanged(audio_io_config_event event,
-                                     const sp<AudioIoDescriptor>& ioDesc);
-
-
-        status_t addAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
-                                               audio_io_handle_t audioIo);
-        status_t removeAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
-                                           audio_io_handle_t audioIo);
-
-        audio_port_handle_t getDeviceIdForIo(audio_io_handle_t audioIo);
-
-    private:
-        Mutex                               mLock;
-        DefaultKeyedVector<audio_io_handle_t, sp<AudioIoDescriptor> >   mIoDescriptors;
-        DefaultKeyedVector<audio_io_handle_t, Vector < sp<AudioDeviceCallback> > >
-                                                                        mAudioDeviceCallbacks;
-        // cached values for recording getInputBufferSize() queries
-        size_t                              mInBuffSize;    // zero indicates cache is invalid
-        uint32_t                            mInSamplingRate;
-        audio_format_t                      mInFormat;
-        audio_channel_mask_t                mInChannelMask;
-        sp<AudioIoDescriptor> getIoDescriptor_l(audio_io_handle_t ioHandle);
-    };
-
-    class AudioPolicyServiceClient: public IBinder::DeathRecipient,
-                                    public BnAudioPolicyServiceClient
-    {
-    public:
-        AudioPolicyServiceClient() {
-        }
-
-        int addAudioPortCallback(const sp<AudioPortCallback>& callback);
-        int removeAudioPortCallback(const sp<AudioPortCallback>& callback);
-
-        // DeathRecipient
-        virtual void binderDied(const wp<IBinder>& who);
-
-        // IAudioPolicyServiceClient
-        virtual void onAudioPortListUpdate();
-        virtual void onAudioPatchListUpdate();
-        virtual void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
-        virtual void onRecordingConfigurationUpdate(int event, audio_session_t session,
-                        audio_source_t source, const audio_config_base_t *clientConfig,
-                        const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle);
-
-    private:
-        Mutex                               mLock;
-        Vector <sp <AudioPortCallback> >    mAudioPortCallbacks;
-    };
-
-    static const sp<AudioFlingerClient> getAudioFlingerClient();
-    static sp<AudioIoDescriptor> getIoDescriptor(audio_io_handle_t ioHandle);
-
-    static sp<AudioFlingerClient> gAudioFlingerClient;
-    static sp<AudioPolicyServiceClient> gAudioPolicyServiceClient;
-    friend class AudioFlingerClient;
-    friend class AudioPolicyServiceClient;
-
-    static Mutex gLock;      // protects gAudioFlinger and gAudioErrorCallback,
-    static Mutex gLockAPS;   // protects gAudioPolicyService and gAudioPolicyServiceClient
-    static sp<IAudioFlinger> gAudioFlinger;
-    static audio_error_callback gAudioErrorCallback;
-    static dynamic_policy_callback gDynPolicyCallback;
-    static record_config_callback gRecordConfigCallback;
-
-    static size_t gInBuffSize;
-    // previous parameters for recording buffer size queries
-    static uint32_t gPrevInSamplingRate;
-    static audio_format_t gPrevInFormat;
-    static audio_channel_mask_t gPrevInChannelMask;
-
-    static sp<IAudioPolicyService> gAudioPolicyService;
-};
-
-};  // namespace android
-
-#endif  /*ANDROID_AUDIOSYSTEM_H_*/
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
new file mode 120000
index 0000000..9fad2b7
--- /dev/null
+++ b/include/media/AudioSystem.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/AudioSystem.h
\ No newline at end of file
diff --git a/include/media/AudioTimestamp.h b/include/media/AudioTimestamp.h
new file mode 120000
index 0000000..b6b9278
--- /dev/null
+++ b/include/media/AudioTimestamp.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/AudioTimestamp.h
\ No newline at end of file
diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
deleted file mode 100644
index 88c4e61..0000000
--- a/include/media/AudioTrack.h
+++ /dev/null
@@ -1,1112 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIOTRACK_H
-#define ANDROID_AUDIOTRACK_H
-
-#include <cutils/sched_policy.h>
-#include <media/AudioSystem.h>
-#include <media/AudioTimestamp.h>
-#include <media/IAudioTrack.h>
-#include <media/AudioResamplerPublic.h>
-#include <media/Modulo.h>
-#include <utils/threads.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-struct audio_track_cblk_t;
-class AudioTrackClientProxy;
-class StaticAudioTrackClientProxy;
-
-// ----------------------------------------------------------------------------
-
-class AudioTrack : public RefBase
-{
-public:
-
-    /* Events used by AudioTrack callback function (callback_t).
-     * Keep in sync with frameworks/base/media/java/android/media/AudioTrack.java NATIVE_EVENT_*.
-     */
-    enum event_type {
-        EVENT_MORE_DATA = 0,        // Request to write more data to buffer.
-                                    // This event only occurs for TRANSFER_CALLBACK.
-                                    // If this event is delivered but the callback handler
-                                    // does not want to write more data, the handler must
-                                    // ignore the event by setting frameCount to zero.
-                                    // This might occur, for example, if the application is
-                                    // waiting for source data or is at the end of stream.
-                                    //
-                                    // For data filling, it is preferred that the callback
-                                    // does not block and instead returns a short count on
-                                    // the amount of data actually delivered
-                                    // (or 0, if no data is currently available).
-        EVENT_UNDERRUN = 1,         // Buffer underrun occurred. This will not occur for
-                                    // static tracks.
-        EVENT_LOOP_END = 2,         // Sample loop end was reached; playback restarted from
-                                    // loop start if loop count was not 0 for a static track.
-        EVENT_MARKER = 3,           // Playback head is at the specified marker position
-                                    // (See setMarkerPosition()).
-        EVENT_NEW_POS = 4,          // Playback head is at a new position
-                                    // (See setPositionUpdatePeriod()).
-        EVENT_BUFFER_END = 5,       // Playback has completed for a static track.
-        EVENT_NEW_IAUDIOTRACK = 6,  // IAudioTrack was re-created, either due to re-routing and
-                                    // voluntary invalidation by mediaserver, or mediaserver crash.
-        EVENT_STREAM_END = 7,       // Sent after all the buffers queued in AF and HW are played
-                                    // back (after stop is called) for an offloaded track.
-#if 0   // FIXME not yet implemented
-        EVENT_NEW_TIMESTAMP = 8,    // Delivered periodically and when there's a significant change
-                                    // in the mapping from frame position to presentation time.
-                                    // See AudioTimestamp for the information included with event.
-#endif
-    };
-
-    /* Client should declare a Buffer and pass the address to obtainBuffer()
-     * and releaseBuffer().  See also callback_t for EVENT_MORE_DATA.
-     */
-
-    class Buffer
-    {
-    public:
-        // FIXME use m prefix
-        size_t      frameCount;   // number of sample frames corresponding to size;
-                                  // on input to obtainBuffer() it is the number of frames desired,
-                                  // on output from obtainBuffer() it is the number of available
-                                  //    [empty slots for] frames to be filled
-                                  // on input to releaseBuffer() it is currently ignored
-
-        size_t      size;         // input/output in bytes == frameCount * frameSize
-                                  // on input to obtainBuffer() it is ignored
-                                  // on output from obtainBuffer() it is the number of available
-                                  //    [empty slots for] bytes to be filled,
-                                  //    which is frameCount * frameSize
-                                  // on input to releaseBuffer() it is the number of bytes to
-                                  //    release
-                                  // FIXME This is redundant with respect to frameCount.  Consider
-                                  //    removing size and making frameCount the primary field.
-
-        union {
-            void*       raw;
-            short*      i16;      // signed 16-bit
-            int8_t*     i8;       // unsigned 8-bit, offset by 0x80
-        };                        // input to obtainBuffer(): unused, output: pointer to buffer
-    };
-
-    /* As a convenience, if a callback is supplied, a handler thread
-     * is automatically created with the appropriate priority. This thread
-     * invokes the callback when a new buffer becomes available or various conditions occur.
-     * Parameters:
-     *
-     * event:   type of event notified (see enum AudioTrack::event_type).
-     * user:    Pointer to context for use by the callback receiver.
-     * info:    Pointer to optional parameter according to event type:
-     *          - EVENT_MORE_DATA: pointer to AudioTrack::Buffer struct. The callback must not write
-     *            more bytes than indicated by 'size' field and update 'size' if fewer bytes are
-     *            written.
-     *          - EVENT_UNDERRUN: unused.
-     *          - EVENT_LOOP_END: pointer to an int indicating the number of loops remaining.
-     *          - EVENT_MARKER: pointer to const uint32_t containing the marker position in frames.
-     *          - EVENT_NEW_POS: pointer to const uint32_t containing the new position in frames.
-     *          - EVENT_BUFFER_END: unused.
-     *          - EVENT_NEW_IAUDIOTRACK: unused.
-     *          - EVENT_STREAM_END: unused.
-     *          - EVENT_NEW_TIMESTAMP: pointer to const AudioTimestamp.
-     */
-
-    typedef void (*callback_t)(int event, void* user, void *info);
-
-    /* Returns the minimum frame count required for the successful creation of
-     * an AudioTrack object.
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - NO_INIT: audio server or audio hardware not initialized
-     *  - BAD_VALUE: unsupported configuration
-     * frameCount is guaranteed to be non-zero if status is NO_ERROR,
-     * and is undefined otherwise.
-     * FIXME This API assumes a route, and so should be deprecated.
-     */
-
-    static status_t getMinFrameCount(size_t* frameCount,
-                                     audio_stream_type_t streamType,
-                                     uint32_t sampleRate);
-
-    /* How data is transferred to AudioTrack
-     */
-    enum transfer_type {
-        TRANSFER_DEFAULT,   // not specified explicitly; determine from the other parameters
-        TRANSFER_CALLBACK,  // callback EVENT_MORE_DATA
-        TRANSFER_OBTAIN,    // call obtainBuffer() and releaseBuffer()
-        TRANSFER_SYNC,      // synchronous write()
-        TRANSFER_SHARED,    // shared memory
-    };
-
-    /* Constructs an uninitialized AudioTrack. No connection with
-     * AudioFlinger takes place.  Use set() after this.
-     */
-                        AudioTrack();
-
-    /* Creates an AudioTrack object and registers it with AudioFlinger.
-     * Once created, the track needs to be started before it can be used.
-     * Unspecified values are set to appropriate default values.
-     *
-     * Parameters:
-     *
-     * streamType:         Select the type of audio stream this track is attached to
-     *                     (e.g. AUDIO_STREAM_MUSIC).
-     * sampleRate:         Data source sampling rate in Hz.  Zero means to use the sink sample rate.
-     *                     A non-zero value must be specified if AUDIO_OUTPUT_FLAG_DIRECT is set.
-     *                     0 will not work with current policy implementation for direct output
-     *                     selection where an exact match is needed for sampling rate.
-     * format:             Audio format. For mixed tracks, any PCM format supported by server is OK.
-     *                     For direct and offloaded tracks, the possible format(s) depends on the
-     *                     output sink.
-     * channelMask:        Channel mask, such that audio_is_output_channel(channelMask) is true.
-     * frameCount:         Minimum size of track PCM buffer in frames. This defines the
-     *                     application's contribution to the
-     *                     latency of the track. The actual size selected by the AudioTrack could be
-     *                     larger if the requested size is not compatible with current audio HAL
-     *                     configuration.  Zero means to use a default value.
-     * flags:              See comments on audio_output_flags_t in <system/audio.h>.
-     * cbf:                Callback function. If not null, this function is called periodically
-     *                     to provide new data in TRANSFER_CALLBACK mode
-     *                     and inform of marker, position updates, etc.
-     * user:               Context for use by the callback receiver.
-     * notificationFrames: The callback function is called each time notificationFrames PCM
-     *                     frames have been consumed from track input buffer by server.
-     *                     Zero means to use a default value, which is typically:
-     *                      - fast tracks: HAL buffer size, even if track frameCount is larger
-     *                      - normal tracks: 1/2 of track frameCount
-     *                     A positive value means that many frames at initial source sample rate.
-     *                     A negative value for this parameter specifies the negative of the
-     *                     requested number of notifications (sub-buffers) in the entire buffer.
-     *                     For fast tracks, the FastMixer will process one sub-buffer at a time.
-     *                     The size of each sub-buffer is determined by the HAL.
-     *                     To get "double buffering", for example, one should pass -2.
-     *                     The minimum number of sub-buffers is 1 (expressed as -1),
-     *                     and the maximum number of sub-buffers is 8 (expressed as -8).
-     *                     Negative is only permitted for fast tracks, and if frameCount is zero.
-     *                     TODO It is ugly to overload a parameter in this way depending on
-     *                     whether it is positive, negative, or zero.  Consider splitting apart.
-     * sessionId:          Specific session ID, or zero to use default.
-     * transferType:       How data is transferred to AudioTrack.
-     * offloadInfo:        If not NULL, provides offload parameters for
-     *                     AudioSystem::getOutputForAttr().
-     * uid:                User ID of the app which initially requested this AudioTrack
-     *                     for power management tracking, or -1 for current user ID.
-     * pid:                Process ID of the app which initially requested this AudioTrack
-     *                     for power management tracking, or -1 for current process ID.
-     * pAttributes:        If not NULL, supersedes streamType for use case selection.
-     * doNotReconnect:     If set to true, AudioTrack won't automatically recreate the IAudioTrack
-                           binder to AudioFlinger.
-                           It will return an error instead.  The application will recreate
-                           the track based on offloading or different channel configuration, etc.
-     * maxRequiredSpeed:   For PCM tracks, this creates an appropriate buffer size that will allow
-     *                     maxRequiredSpeed playback. Values less than 1.0f and greater than
-     *                     AUDIO_TIMESTRETCH_SPEED_MAX will be clamped.  For non-PCM tracks
-     *                     and direct or offloaded tracks, this parameter is ignored.
-     * threadCanCallJava:  Not present in parameter list, and so is fixed at false.
-     */
-
-                        AudioTrack( audio_stream_type_t streamType,
-                                    uint32_t sampleRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    size_t frameCount    = 0,
-                                    audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                    callback_t cbf       = NULL,
-                                    void* user           = NULL,
-                                    int32_t notificationFrames = 0,
-                                    audio_session_t sessionId  = AUDIO_SESSION_ALLOCATE,
-                                    transfer_type transferType = TRANSFER_DEFAULT,
-                                    const audio_offload_info_t *offloadInfo = NULL,
-                                    int uid = -1,
-                                    pid_t pid = -1,
-                                    const audio_attributes_t* pAttributes = NULL,
-                                    bool doNotReconnect = false,
-                                    float maxRequiredSpeed = 1.0f);
-
-    /* Creates an audio track and registers it with AudioFlinger.
-     * With this constructor, the track is configured for static buffer mode.
-     * Data to be rendered is passed in a shared memory buffer
-     * identified by the argument sharedBuffer, which should be non-0.
-     * If sharedBuffer is zero, this constructor is equivalent to the previous constructor
-     * but without the ability to specify a non-zero value for the frameCount parameter.
-     * The memory should be initialized to the desired data before calling start().
-     * The write() method is not supported in this case.
-     * It is recommended to pass a callback function to be notified of playback end by an
-     * EVENT_UNDERRUN event.
-     */
-
-                        AudioTrack( audio_stream_type_t streamType,
-                                    uint32_t sampleRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    const sp<IMemory>& sharedBuffer,
-                                    audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                    callback_t cbf      = NULL,
-                                    void* user          = NULL,
-                                    int32_t notificationFrames = 0,
-                                    audio_session_t sessionId   = AUDIO_SESSION_ALLOCATE,
-                                    transfer_type transferType = TRANSFER_DEFAULT,
-                                    const audio_offload_info_t *offloadInfo = NULL,
-                                    int uid = -1,
-                                    pid_t pid = -1,
-                                    const audio_attributes_t* pAttributes = NULL,
-                                    bool doNotReconnect = false,
-                                    float maxRequiredSpeed = 1.0f);
-
-    /* Terminates the AudioTrack and unregisters it from AudioFlinger.
-     * Also destroys all resources associated with the AudioTrack.
-     */
-protected:
-                        virtual ~AudioTrack();
-public:
-
-    /* Initialize an AudioTrack that was created using the AudioTrack() constructor.
-     * Don't call set() more than once, or after the AudioTrack() constructors that take parameters.
-     * set() is not multi-thread safe.
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful initialization
-     *  - INVALID_OPERATION: AudioTrack is already initialized
-     *  - BAD_VALUE: invalid parameter (channelMask, format, sampleRate...)
-     *  - NO_INIT: audio server or audio hardware not initialized
-     * If status is not equal to NO_ERROR, don't call any other APIs on this AudioTrack.
-     * If sharedBuffer is non-0, the frameCount parameter is ignored and
-     * replaced by the shared buffer's total allocated size in frame units.
-     *
-     * Parameters not listed in the AudioTrack constructors above:
-     *
-     * threadCanCallJava:  Whether callbacks are made from an attached thread and thus can call JNI.
-     *
-     * Internal state post condition:
-     *      (mStreamType == AUDIO_STREAM_DEFAULT) implies this AudioTrack has valid attributes
-     */
-            status_t    set(audio_stream_type_t streamType,
-                            uint32_t sampleRate,
-                            audio_format_t format,
-                            audio_channel_mask_t channelMask,
-                            size_t frameCount   = 0,
-                            audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                            callback_t cbf      = NULL,
-                            void* user          = NULL,
-                            int32_t notificationFrames = 0,
-                            const sp<IMemory>& sharedBuffer = 0,
-                            bool threadCanCallJava = false,
-                            audio_session_t sessionId  = AUDIO_SESSION_ALLOCATE,
-                            transfer_type transferType = TRANSFER_DEFAULT,
-                            const audio_offload_info_t *offloadInfo = NULL,
-                            int uid = -1,
-                            pid_t pid = -1,
-                            const audio_attributes_t* pAttributes = NULL,
-                            bool doNotReconnect = false,
-                            float maxRequiredSpeed = 1.0f);
-
-    /* Result of constructing the AudioTrack. This must be checked for successful initialization
-     * before using any AudioTrack API (except for set()), because using
-     * an uninitialized AudioTrack produces undefined results.
-     * See set() method above for possible return codes.
-     */
-            status_t    initCheck() const   { return mStatus; }
-
-    /* Returns this track's estimated latency in milliseconds.
-     * This includes the latency due to AudioTrack buffer size, AudioMixer (if any)
-     * and audio hardware driver.
-     */
-            uint32_t    latency() const     { return mLatency; }
-
-    /* Returns the number of application-level buffer underruns
-     * since the AudioTrack was created.
-     */
-            uint32_t    getUnderrunCount() const;
-
-    /* getters, see constructors and set() */
-
-            audio_stream_type_t streamType() const;
-            audio_format_t format() const   { return mFormat; }
-
-    /* Return frame size in bytes, which for linear PCM is
-     * channelCount * (bit depth per channel / 8).
-     * channelCount is determined from channelMask, and bit depth comes from format.
-     * For non-linear formats, the frame size is typically 1 byte.
-     */
-            size_t      frameSize() const   { return mFrameSize; }
-
-            uint32_t    channelCount() const { return mChannelCount; }
-            size_t      frameCount() const  { return mFrameCount; }
-
-    // TODO consider notificationFrames() if needed
-
-    /* Return effective size of audio buffer that an application writes to
-     * or a negative error if the track is uninitialized.
-     */
-            ssize_t     getBufferSizeInFrames();
-
-    /* Returns the buffer duration in microseconds at current playback rate.
-     */
-            status_t    getBufferDurationInUs(int64_t *duration);
-
-    /* Set the effective size of audio buffer that an application writes to.
-     * This is used to determine the amount of available room in the buffer,
-     * which determines when a write will block.
-     * This allows an application to raise and lower the audio latency.
-     * The requested size may be adjusted so that it is
-     * greater or equal to the absolute minimum and
-     * less than or equal to the getBufferCapacityInFrames().
-     * It may also be adjusted slightly for internal reasons.
-     *
-     * Return the final size or a negative error if the track is unitialized
-     * or does not support variable sizes.
-     */
-            ssize_t     setBufferSizeInFrames(size_t size);
-
-    /* Return the static buffer specified in constructor or set(), or 0 for streaming mode */
-            sp<IMemory> sharedBuffer() const { return mSharedBuffer; }
-
-    /* After it's created the track is not active. Call start() to
-     * make it active. If set, the callback will start being called.
-     * If the track was previously paused, volume is ramped up over the first mix buffer.
-     */
-            status_t        start();
-
-    /* Stop a track.
-     * In static buffer mode, the track is stopped immediately.
-     * In streaming mode, the callback will cease being called.  Note that obtainBuffer() still
-     * works and will fill up buffers until the pool is exhausted, and then will return WOULD_BLOCK.
-     * In streaming mode the stop does not occur immediately: any data remaining in the buffer
-     * is first drained, mixed, and output, and only then is the track marked as stopped.
-     */
-            void        stop();
-            bool        stopped() const;
-
-    /* Flush a stopped or paused track. All previously buffered data is discarded immediately.
-     * This has the effect of draining the buffers without mixing or output.
-     * Flush is intended for streaming mode, for example before switching to non-contiguous content.
-     * This function is a no-op if the track is not stopped or paused, or uses a static buffer.
-     */
-            void        flush();
-
-    /* Pause a track. After pause, the callback will cease being called and
-     * obtainBuffer returns WOULD_BLOCK. Note that obtainBuffer() still works
-     * and will fill up buffers until the pool is exhausted.
-     * Volume is ramped down over the next mix buffer following the pause request,
-     * and then the track is marked as paused.  It can be resumed with ramp up by start().
-     */
-            void        pause();
-
-    /* Set volume for this track, mostly used for games' sound effects
-     * left and right volumes. Levels must be >= 0.0 and <= 1.0.
-     * This is the older API.  New applications should use setVolume(float) when possible.
-     */
-            status_t    setVolume(float left, float right);
-
-    /* Set volume for all channels.  This is the preferred API for new applications,
-     * especially for multi-channel content.
-     */
-            status_t    setVolume(float volume);
-
-    /* Set the send level for this track. An auxiliary effect should be attached
-     * to the track with attachEffect(). Level must be >= 0.0 and <= 1.0.
-     */
-            status_t    setAuxEffectSendLevel(float level);
-            void        getAuxEffectSendLevel(float* level) const;
-
-    /* Set source sample rate for this track in Hz, mostly used for games' sound effects.
-     * Zero is not permitted.
-     */
-            status_t    setSampleRate(uint32_t sampleRate);
-
-    /* Return current source sample rate in Hz.
-     * If specified as zero in constructor or set(), this will be the sink sample rate.
-     */
-            uint32_t    getSampleRate() const;
-
-    /* Return the original source sample rate in Hz. This corresponds to the sample rate
-     * if playback rate had normal speed and pitch.
-     */
-            uint32_t    getOriginalSampleRate() const;
-
-    /* Set source playback rate for timestretch
-     * 1.0 is normal speed: < 1.0 is slower, > 1.0 is faster
-     * 1.0 is normal pitch: < 1.0 is lower pitch, > 1.0 is higher pitch
-     *
-     * AUDIO_TIMESTRETCH_SPEED_MIN <= speed <= AUDIO_TIMESTRETCH_SPEED_MAX
-     * AUDIO_TIMESTRETCH_PITCH_MIN <= pitch <= AUDIO_TIMESTRETCH_PITCH_MAX
-     *
-     * Speed increases the playback rate of media, but does not alter pitch.
-     * Pitch increases the "tonal frequency" of media, but does not affect the playback rate.
-     */
-            status_t    setPlaybackRate(const AudioPlaybackRate &playbackRate);
-
-    /* Return current playback rate */
-            const AudioPlaybackRate& getPlaybackRate() const;
-
-    /* Enables looping and sets the start and end points of looping.
-     * Only supported for static buffer mode.
-     *
-     * Parameters:
-     *
-     * loopStart:   loop start in frames relative to start of buffer.
-     * loopEnd:     loop end in frames relative to start of buffer.
-     * loopCount:   number of loops to execute. Calling setLoop() with loopCount == 0 cancels any
-     *              pending or active loop. loopCount == -1 means infinite looping.
-     *
-     * For proper operation the following condition must be respected:
-     *      loopCount != 0 implies 0 <= loopStart < loopEnd <= frameCount().
-     *
-     * If the loop period (loopEnd - loopStart) is too small for the implementation to support,
-     * setLoop() will return BAD_VALUE.  loopCount must be >= -1.
-     *
-     */
-            status_t    setLoop(uint32_t loopStart, uint32_t loopEnd, int loopCount);
-
-    /* Sets marker position. When playback reaches the number of frames specified, a callback with
-     * event type EVENT_MARKER is called. Calling setMarkerPosition with marker == 0 cancels marker
-     * notification callback.  To set a marker at a position which would compute as 0,
-     * a workaround is to set the marker at a nearby position such as ~0 or 1.
-     * If the AudioTrack has been opened with no callback function associated, the operation will
-     * fail.
-     *
-     * Parameters:
-     *
-     * marker:   marker position expressed in wrapping (overflow) frame units,
-     *           like the return value of getPosition().
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioTrack has no callback installed.
-     */
-            status_t    setMarkerPosition(uint32_t marker);
-            status_t    getMarkerPosition(uint32_t *marker) const;
-
-    /* Sets position update period. Every time the number of frames specified has been played,
-     * a callback with event type EVENT_NEW_POS is called.
-     * Calling setPositionUpdatePeriod with updatePeriod == 0 cancels new position notification
-     * callback.
-     * If the AudioTrack has been opened with no callback function associated, the operation will
-     * fail.
-     * Extremely small values may be rounded up to a value the implementation can support.
-     *
-     * Parameters:
-     *
-     * updatePeriod:  position update notification period expressed in frames.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioTrack has no callback installed.
-     */
-            status_t    setPositionUpdatePeriod(uint32_t updatePeriod);
-            status_t    getPositionUpdatePeriod(uint32_t *updatePeriod) const;
-
-    /* Sets playback head position.
-     * Only supported for static buffer mode.
-     *
-     * Parameters:
-     *
-     * position:  New playback head position in frames relative to start of buffer.
-     *            0 <= position <= frameCount().  Note that end of buffer is permitted,
-     *            but will result in an immediate underrun if started.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioTrack is not stopped or paused, or is streaming mode.
-     *  - BAD_VALUE: The specified position is beyond the number of frames present in AudioTrack
-     *               buffer
-     */
-            status_t    setPosition(uint32_t position);
-
-    /* Return the total number of frames played since playback start.
-     * The counter will wrap (overflow) periodically, e.g. every ~27 hours at 44.1 kHz.
-     * It is reset to zero by flush(), reload(), and stop().
-     *
-     * Parameters:
-     *
-     *  position:  Address where to return play head position.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - BAD_VALUE:  position is NULL
-     */
-            status_t    getPosition(uint32_t *position);
-
-    /* For static buffer mode only, this returns the current playback position in frames
-     * relative to start of buffer.  It is analogous to the position units used by
-     * setLoop() and setPosition().  After underrun, the position will be at end of buffer.
-     */
-            status_t    getBufferPosition(uint32_t *position);
-
-    /* Forces AudioTrack buffer full condition. When playing a static buffer, this method avoids
-     * rewriting the buffer before restarting playback after a stop.
-     * This method must be called with the AudioTrack in paused or stopped state.
-     * Not allowed in streaming mode.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioTrack is not stopped or paused, or is streaming mode.
-     */
-            status_t    reload();
-
-    /* Returns a handle on the audio output used by this AudioTrack.
-     *
-     * Parameters:
-     *  none.
-     *
-     * Returned value:
-     *  handle on audio hardware output, or AUDIO_IO_HANDLE_NONE if the
-     *  track needed to be re-created but that failed
-     */
-private:
-            audio_io_handle_t    getOutput() const;
-public:
-
-    /* Selects the audio device to use for output of this AudioTrack. A value of
-     * AUDIO_PORT_HANDLE_NONE indicates default (AudioPolicyManager) routing.
-     *
-     * Parameters:
-     *  The device ID of the selected device (as returned by the AudioDevicesManager API).
-     *
-     * Returned value:
-     *  - NO_ERROR: successful operation
-     *    TODO: what else can happen here?
-     */
-            status_t    setOutputDevice(audio_port_handle_t deviceId);
-
-    /* Returns the ID of the audio device selected for this AudioTrack.
-     * A value of AUDIO_PORT_HANDLE_NONE indicates default (AudioPolicyManager) routing.
-     *
-     * Parameters:
-     *  none.
-     */
-     audio_port_handle_t getOutputDevice();
-
-     /* Returns the ID of the audio device actually used by the output to which this AudioTrack is
-      * attached.
-      * A value of AUDIO_PORT_HANDLE_NONE indicates the audio track is not attached to any output.
-      *
-      * Parameters:
-      *  none.
-      */
-     audio_port_handle_t getRoutedDeviceId();
-
-    /* Returns the unique session ID associated with this track.
-     *
-     * Parameters:
-     *  none.
-     *
-     * Returned value:
-     *  AudioTrack session ID.
-     */
-            audio_session_t getSessionId() const { return mSessionId; }
-
-    /* Attach track auxiliary output to specified effect. Use effectId = 0
-     * to detach track from effect.
-     *
-     * Parameters:
-     *
-     * effectId:  effectId obtained from AudioEffect::id().
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the effect is not an auxiliary effect.
-     *  - BAD_VALUE: The specified effect ID is invalid
-     */
-            status_t    attachAuxEffect(int effectId);
-
-    /* Public API for TRANSFER_OBTAIN mode.
-     * Obtains a buffer of up to "audioBuffer->frameCount" empty slots for frames.
-     * After filling these slots with data, the caller should release them with releaseBuffer().
-     * If the track buffer is not full, obtainBuffer() returns as many contiguous
-     * [empty slots for] frames as are available immediately.
-     *
-     * If nonContig is non-NULL, it is an output parameter that will be set to the number of
-     * additional non-contiguous frames that are predicted to be available immediately,
-     * if the client were to release the first frames and then call obtainBuffer() again.
-     * This value is only a prediction, and needs to be confirmed.
-     * It will be set to zero for an error return.
-     *
-     * If the track buffer is full and track is stopped, obtainBuffer() returns WOULD_BLOCK
-     * regardless of the value of waitCount.
-     * If the track buffer is full and track is not stopped, obtainBuffer() blocks with a
-     * maximum timeout based on waitCount; see chart below.
-     * Buffers will be returned until the pool
-     * is exhausted, at which point obtainBuffer() will either block
-     * or return WOULD_BLOCK depending on the value of the "waitCount"
-     * parameter.
-     *
-     * Interpretation of waitCount:
-     *  +n  limits wait time to n * WAIT_PERIOD_MS,
-     *  -1  causes an (almost) infinite wait time,
-     *   0  non-blocking.
-     *
-     * Buffer fields
-     * On entry:
-     *  frameCount  number of [empty slots for] frames requested
-     *  size        ignored
-     *  raw         ignored
-     * After error return:
-     *  frameCount  0
-     *  size        0
-     *  raw         undefined
-     * After successful return:
-     *  frameCount  actual number of [empty slots for] frames available, <= number requested
-     *  size        actual number of bytes available
-     *  raw         pointer to the buffer
-     */
-            status_t    obtainBuffer(Buffer* audioBuffer, int32_t waitCount,
-                                size_t *nonContig = NULL);
-
-private:
-    /* If nonContig is non-NULL, it is an output parameter that will be set to the number of
-     * additional non-contiguous frames that are predicted to be available immediately,
-     * if the client were to release the first frames and then call obtainBuffer() again.
-     * This value is only a prediction, and needs to be confirmed.
-     * It will be set to zero for an error return.
-     * FIXME We could pass an array of Buffers instead of only one Buffer to obtainBuffer(),
-     * in case the requested amount of frames is in two or more non-contiguous regions.
-     * FIXME requested and elapsed are both relative times.  Consider changing to absolute time.
-     */
-            status_t    obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
-                                     struct timespec *elapsed = NULL, size_t *nonContig = NULL);
-public:
-
-    /* Public API for TRANSFER_OBTAIN mode.
-     * Release a filled buffer of frames for AudioFlinger to process.
-     *
-     * Buffer fields:
-     *  frameCount  currently ignored but recommend to set to actual number of frames filled
-     *  size        actual number of bytes filled, must be multiple of frameSize
-     *  raw         ignored
-     */
-            void        releaseBuffer(const Buffer* audioBuffer);
-
-    /* As a convenience we provide a write() interface to the audio buffer.
-     * Input parameter 'size' is in byte units.
-     * This is implemented on top of obtainBuffer/releaseBuffer. For best
-     * performance use callbacks. Returns actual number of bytes written >= 0,
-     * or one of the following negative status codes:
-     *      INVALID_OPERATION   AudioTrack is configured for static buffer or streaming mode
-     *      BAD_VALUE           size is invalid
-     *      WOULD_BLOCK         when obtainBuffer() returns same, or
-     *                          AudioTrack was stopped during the write
-     *      DEAD_OBJECT         when AudioFlinger dies or the output device changes and
-     *                          the track cannot be automatically restored.
-     *                          The application needs to recreate the AudioTrack
-     *                          because the audio device changed or AudioFlinger died.
-     *                          This typically occurs for direct or offload tracks
-     *                          or if mDoNotReconnect is true.
-     *      or any other error code returned by IAudioTrack::start() or restoreTrack_l().
-     * Default behavior is to only return when all data has been transferred. Set 'blocking' to
-     * false for the method to return immediately without waiting to try multiple times to write
-     * the full content of the buffer.
-     */
-            ssize_t     write(const void* buffer, size_t size, bool blocking = true);
-
-    /*
-     * Dumps the state of an audio track.
-     * Not a general-purpose API; intended only for use by media player service to dump its tracks.
-     */
-            status_t    dump(int fd, const Vector<String16>& args) const;
-
-    /*
-     * Return the total number of frames which AudioFlinger desired but were unavailable,
-     * and thus which resulted in an underrun.  Reset to zero by stop().
-     */
-            uint32_t    getUnderrunFrames() const;
-
-    /* Get the flags */
-            audio_output_flags_t getFlags() const { AutoMutex _l(mLock); return mFlags; }
-
-    /* Set parameters - only possible when using direct output */
-            status_t    setParameters(const String8& keyValuePairs);
-
-    /* Get parameters */
-            String8     getParameters(const String8& keys);
-
-    /* Poll for a timestamp on demand.
-     * Use if EVENT_NEW_TIMESTAMP is not delivered often enough for your needs,
-     * or if you need to get the most recent timestamp outside of the event callback handler.
-     * Caution: calling this method too often may be inefficient;
-     * if you need a high resolution mapping between frame position and presentation time,
-     * consider implementing that at application level, based on the low resolution timestamps.
-     * Returns NO_ERROR    if timestamp is valid.
-     *         WOULD_BLOCK if called in STOPPED or FLUSHED state, or if called immediately after
-     *                     start/ACTIVE, when the number of frames consumed is less than the
-     *                     overall hardware latency to physical output. In WOULD_BLOCK cases,
-     *                     one might poll again, or use getPosition(), or use 0 position and
-     *                     current time for the timestamp.
-     *         DEAD_OBJECT if AudioFlinger dies or the output device changes and
-     *                     the track cannot be automatically restored.
-     *                     The application needs to recreate the AudioTrack
-     *                     because the audio device changed or AudioFlinger died.
-     *                     This typically occurs for direct or offload tracks
-     *                     or if mDoNotReconnect is true.
-     *         INVALID_OPERATION  wrong state, or some other error.
-     *
-     * The timestamp parameter is undefined on return, if status is not NO_ERROR.
-     */
-            status_t    getTimestamp(AudioTimestamp& timestamp);
-
-    /* Return the extended timestamp, with additional timebase info and improved drain behavior.
-     *
-     * This is similar to the AudioTrack.java API:
-     * getTimestamp(@NonNull AudioTimestamp timestamp, @AudioTimestamp.Timebase int timebase)
-     *
-     * Some differences between this method and the getTimestamp(AudioTimestamp& timestamp) method
-     *
-     *   1. stop() by itself does not reset the frame position.
-     *      A following start() resets the frame position to 0.
-     *   2. flush() by itself does not reset the frame position.
-     *      The frame position advances by the number of frames flushed,
-     *      when the first frame after flush reaches the audio sink.
-     *   3. BOOTTIME clock offsets are provided to help synchronize with
-     *      non-audio streams, e.g. sensor data.
-     *   4. Position is returned with 64 bits of resolution.
-     *
-     * Parameters:
-     *  timestamp: A pointer to the caller allocated ExtendedTimestamp.
-     *
-     * Returns NO_ERROR    on success; timestamp is filled with valid data.
-     *         BAD_VALUE   if timestamp is NULL.
-     *         WOULD_BLOCK if called immediately after start() when the number
-     *                     of frames consumed is less than the
-     *                     overall hardware latency to physical output. In WOULD_BLOCK cases,
-     *                     one might poll again, or use getPosition(), or use 0 position and
-     *                     current time for the timestamp.
-     *                     If WOULD_BLOCK is returned, the timestamp is still
-     *                     modified with the LOCATION_CLIENT portion filled.
-     *         DEAD_OBJECT if AudioFlinger dies or the output device changes and
-     *                     the track cannot be automatically restored.
-     *                     The application needs to recreate the AudioTrack
-     *                     because the audio device changed or AudioFlinger died.
-     *                     This typically occurs for direct or offloaded tracks
-     *                     or if mDoNotReconnect is true.
-     *         INVALID_OPERATION  if called on a offloaded or direct track.
-     *                     Use getTimestamp(AudioTimestamp& timestamp) instead.
-     */
-            status_t getTimestamp(ExtendedTimestamp *timestamp);
-private:
-            status_t getTimestamp_l(ExtendedTimestamp *timestamp);
-public:
-
-    /* Add an AudioDeviceCallback. The caller will be notified when the audio device to which this
-     * AudioTrack is routed is updated.
-     * Replaces any previously installed callback.
-     * Parameters:
-     *  callback:  The callback interface
-     * Returns NO_ERROR if successful.
-     *         INVALID_OPERATION if the same callback is already installed.
-     *         NO_INIT or PREMISSION_DENIED if AudioFlinger service is not reachable
-     *         BAD_VALUE if the callback is NULL
-     */
-            status_t addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback);
-
-    /* remove an AudioDeviceCallback.
-     * Parameters:
-     *  callback:  The callback interface
-     * Returns NO_ERROR if successful.
-     *         INVALID_OPERATION if the callback is not installed
-     *         BAD_VALUE if the callback is NULL
-     */
-            status_t removeAudioDeviceCallback(
-                    const sp<AudioSystem::AudioDeviceCallback>& callback);
-
-    /* Obtain the pending duration in milliseconds for playback of pure PCM
-     * (mixable without embedded timing) data remaining in AudioTrack.
-     *
-     * This is used to estimate the drain time for the client-server buffer
-     * so the choice of ExtendedTimestamp::LOCATION_SERVER is default.
-     * One may optionally request to find the duration to play through the HAL
-     * by specifying a location ExtendedTimestamp::LOCATION_KERNEL; however,
-     * INVALID_OPERATION may be returned if the kernel location is unavailable.
-     *
-     * Returns NO_ERROR  if successful.
-     *         INVALID_OPERATION if ExtendedTimestamp::LOCATION_KERNEL cannot be obtained
-     *                   or the AudioTrack does not contain pure PCM data.
-     *         BAD_VALUE if msec is nullptr or location is invalid.
-     */
-            status_t pendingDuration(int32_t *msec,
-                    ExtendedTimestamp::Location location = ExtendedTimestamp::LOCATION_SERVER);
-
-protected:
-    /* copying audio tracks is not allowed */
-                        AudioTrack(const AudioTrack& other);
-            AudioTrack& operator = (const AudioTrack& other);
-
-    /* a small internal class to handle the callback */
-    class AudioTrackThread : public Thread
-    {
-    public:
-        AudioTrackThread(AudioTrack& receiver, bool bCanCallJava = false);
-
-        // Do not call Thread::requestExitAndWait() without first calling requestExit().
-        // Thread::requestExitAndWait() is not virtual, and the implementation doesn't do enough.
-        virtual void        requestExit();
-
-                void        pause();    // suspend thread from execution at next loop boundary
-                void        resume();   // allow thread to execute, if not requested to exit
-                void        wake();     // wake to handle changed notification conditions.
-
-    private:
-                void        pauseInternal(nsecs_t ns = 0LL);
-                                        // like pause(), but only used internally within thread
-
-        friend class AudioTrack;
-        virtual bool        threadLoop();
-        AudioTrack&         mReceiver;
-        virtual ~AudioTrackThread();
-        Mutex               mMyLock;    // Thread::mLock is private
-        Condition           mMyCond;    // Thread::mThreadExitedCondition is private
-        bool                mPaused;    // whether thread is requested to pause at next loop entry
-        bool                mPausedInt; // whether thread internally requests pause
-        nsecs_t             mPausedNs;  // if mPausedInt then associated timeout, otherwise ignored
-        bool                mIgnoreNextPausedInt;   // skip any internal pause and go immediately
-                                        // to processAudioBuffer() as state may have changed
-                                        // since pause time calculated.
-    };
-
-            // body of AudioTrackThread::threadLoop()
-            // returns the maximum amount of time before we would like to run again, where:
-            //      0           immediately
-            //      > 0         no later than this many nanoseconds from now
-            //      NS_WHENEVER still active but no particular deadline
-            //      NS_INACTIVE inactive so don't run again until re-started
-            //      NS_NEVER    never again
-            static const nsecs_t NS_WHENEVER = -1, NS_INACTIVE = -2, NS_NEVER = -3;
-            nsecs_t processAudioBuffer();
-
-            // caller must hold lock on mLock for all _l methods
-
-            status_t createTrack_l();
-
-            // can only be called when mState != STATE_ACTIVE
-            void flush_l();
-
-            void setLoop_l(uint32_t loopStart, uint32_t loopEnd, int loopCount);
-
-            // FIXME enum is faster than strcmp() for parameter 'from'
-            status_t restoreTrack_l(const char *from);
-
-            uint32_t    getUnderrunCount_l() const;
-
-            bool     isOffloaded() const;
-            bool     isDirect() const;
-            bool     isOffloadedOrDirect() const;
-
-            bool     isOffloaded_l() const
-                { return (mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; }
-
-            bool     isOffloadedOrDirect_l() const
-                { return (mFlags & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD|
-                                                AUDIO_OUTPUT_FLAG_DIRECT)) != 0; }
-
-            bool     isDirect_l() const
-                { return (mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0; }
-
-            // pure pcm data is mixable (which excludes HW_AV_SYNC, with embedded timing)
-            bool     isPurePcmData_l() const
-                { return audio_is_linear_pcm(mFormat)
-                        && (mAttributes.flags & AUDIO_FLAG_HW_AV_SYNC) == 0; }
-
-            // increment mPosition by the delta of mServer, and return new value of mPosition
-            Modulo<uint32_t> updateAndGetPosition_l();
-
-            // check sample rate and speed is compatible with AudioTrack
-            bool     isSampleRateSpeedAllowed_l(uint32_t sampleRate, float speed) const;
-
-            void     restartIfDisabled();
-
-    // Next 4 fields may be changed if IAudioTrack is re-created, but always != 0
-    sp<IAudioTrack>         mAudioTrack;
-    sp<IMemory>             mCblkMemory;
-    audio_track_cblk_t*     mCblk;                  // re-load after mLock.unlock()
-    audio_io_handle_t       mOutput;                // returned by AudioSystem::getOutput()
-
-    sp<AudioTrackThread>    mAudioTrackThread;
-    bool                    mThreadCanCallJava;
-
-    float                   mVolume[2];
-    float                   mSendLevel;
-    mutable uint32_t        mSampleRate;            // mutable because getSampleRate() can update it
-    uint32_t                mOriginalSampleRate;
-    AudioPlaybackRate       mPlaybackRate;
-    float                   mMaxRequiredSpeed;      // use PCM buffer size to allow this speed
-
-    // Corresponds to current IAudioTrack, value is reported back by AudioFlinger to the client.
-    // This allocated buffer size is maintained by the proxy.
-    size_t                  mFrameCount;            // maximum size of buffer
-
-    size_t                  mReqFrameCount;         // frame count to request the first or next time
-                                                    // a new IAudioTrack is needed, non-decreasing
-
-    // The following AudioFlinger server-side values are cached in createAudioTrack_l().
-    // These values can be used for informational purposes until the track is invalidated,
-    // whereupon restoreTrack_l() calls createTrack_l() to update the values.
-    uint32_t                mAfLatency;             // AudioFlinger latency in ms
-    size_t                  mAfFrameCount;          // AudioFlinger frame count
-    uint32_t                mAfSampleRate;          // AudioFlinger sample rate
-
-    // constant after constructor or set()
-    audio_format_t          mFormat;                // as requested by client, not forced to 16-bit
-    audio_stream_type_t     mStreamType;            // mStreamType == AUDIO_STREAM_DEFAULT implies
-                                                    // this AudioTrack has valid attributes
-    uint32_t                mChannelCount;
-    audio_channel_mask_t    mChannelMask;
-    sp<IMemory>             mSharedBuffer;
-    transfer_type           mTransfer;
-    audio_offload_info_t    mOffloadInfoCopy;
-    const audio_offload_info_t* mOffloadInfo;
-    audio_attributes_t      mAttributes;
-
-    size_t                  mFrameSize;             // frame size in bytes
-
-    status_t                mStatus;
-
-    // can change dynamically when IAudioTrack invalidated
-    uint32_t                mLatency;               // in ms
-
-    // Indicates the current track state.  Protected by mLock.
-    enum State {
-        STATE_ACTIVE,
-        STATE_STOPPED,
-        STATE_PAUSED,
-        STATE_PAUSED_STOPPING,
-        STATE_FLUSHED,
-        STATE_STOPPING,
-    }                       mState;
-
-    // for client callback handler
-    callback_t              mCbf;                   // callback handler for events, or NULL
-    void*                   mUserData;
-
-    // for notification APIs
-
-    // next 2 fields are const after constructor or set()
-    uint32_t                mNotificationFramesReq; // requested number of frames between each
-                                                    // notification callback,
-                                                    // at initial source sample rate
-    uint32_t                mNotificationsPerBufferReq;
-                                                    // requested number of notifications per buffer,
-                                                    // currently only used for fast tracks with
-                                                    // default track buffer size
-
-    uint32_t                mNotificationFramesAct; // actual number of frames between each
-                                                    // notification callback,
-                                                    // at initial source sample rate
-    bool                    mRefreshRemaining;      // processAudioBuffer() should refresh
-                                                    // mRemainingFrames and mRetryOnPartialBuffer
-
-                                                    // used for static track cbf and restoration
-    int32_t                 mLoopCount;             // last setLoop loopCount; zero means disabled
-    uint32_t                mLoopStart;             // last setLoop loopStart
-    uint32_t                mLoopEnd;               // last setLoop loopEnd
-    int32_t                 mLoopCountNotified;     // the last loopCount notified by callback.
-                                                    // mLoopCountNotified counts down, matching
-                                                    // the remaining loop count for static track
-                                                    // playback.
-
-    // These are private to processAudioBuffer(), and are not protected by a lock
-    uint32_t                mRemainingFrames;       // number of frames to request in obtainBuffer()
-    bool                    mRetryOnPartialBuffer;  // sleep and retry after partial obtainBuffer()
-    uint32_t                mObservedSequence;      // last observed value of mSequence
-
-    Modulo<uint32_t>        mMarkerPosition;        // in wrapping (overflow) frame units
-    bool                    mMarkerReached;
-    Modulo<uint32_t>        mNewPosition;           // in frames
-    uint32_t                mUpdatePeriod;          // in frames, zero means no EVENT_NEW_POS
-
-    Modulo<uint32_t>        mServer;                // in frames, last known mProxy->getPosition()
-                                                    // which is count of frames consumed by server,
-                                                    // reset by new IAudioTrack,
-                                                    // whether it is reset by stop() is TBD
-    Modulo<uint32_t>        mPosition;              // in frames, like mServer except continues
-                                                    // monotonically after new IAudioTrack,
-                                                    // and could be easily widened to uint64_t
-    Modulo<uint32_t>        mReleased;              // count of frames released to server
-                                                    // but not necessarily consumed by server,
-                                                    // reset by stop() but continues monotonically
-                                                    // after new IAudioTrack to restore mPosition,
-                                                    // and could be easily widened to uint64_t
-    int64_t                 mStartUs;               // the start time after flush or stop.
-                                                    // only used for offloaded and direct tracks.
-
-    bool                    mPreviousTimestampValid;// true if mPreviousTimestamp is valid
-    bool                    mTimestampStartupGlitchReported; // reduce log spam
-    bool                    mRetrogradeMotionReported; // reduce log spam
-    AudioTimestamp          mPreviousTimestamp;     // used to detect retrograde motion
-    ExtendedTimestamp::Location mPreviousLocation;  // location used for previous timestamp
-
-    uint32_t                mUnderrunCountOffset;   // updated when restoring tracks
-
-    int64_t                 mFramesWritten;         // total frames written. reset to zero after
-                                                    // the start() following stop(). It is not
-                                                    // changed after restoring the track or
-                                                    // after flush.
-    int64_t                 mFramesWrittenServerOffset; // An offset to server frames due to
-                                                    // restoring AudioTrack, or stop/start.
-
-    audio_output_flags_t    mFlags;                 // same as mOrigFlags, except for bits that may
-                                                    // be denied by client or server, such as
-                                                    // AUDIO_OUTPUT_FLAG_FAST.  mLock must be
-                                                    // held to read or write those bits reliably.
-    audio_output_flags_t    mOrigFlags;             // as specified in constructor or set(), const
-
-    bool                    mDoNotReconnect;
-
-    audio_session_t         mSessionId;
-    int                     mAuxEffectId;
-
-    mutable Mutex           mLock;
-
-    int                     mPreviousPriority;          // before start()
-    SchedPolicy             mPreviousSchedulingGroup;
-    bool                    mAwaitBoost;    // thread should wait for priority boost before running
-
-    // The proxy should only be referenced while a lock is held because the proxy isn't
-    // multi-thread safe, especially the SingleStateQueue part of the proxy.
-    // An exception is that a blocking ClientProxy::obtainBuffer() may be called without a lock,
-    // provided that the caller also holds an extra reference to the proxy and shared memory to keep
-    // them around in case they are replaced during the obtainBuffer().
-    sp<StaticAudioTrackClientProxy> mStaticProxy;   // for type safety only
-    sp<AudioTrackClientProxy>       mProxy;         // primary owner of the memory
-
-    bool                    mInUnderrun;            // whether track is currently in underrun state
-    uint32_t                mPausedPosition;
-
-    // For Device Selection API
-    //  a value of AUDIO_PORT_HANDLE_NONE indicated default (AudioPolicyManager) routing.
-    audio_port_handle_t     mSelectedDeviceId;
-
-private:
-    class DeathNotifier : public IBinder::DeathRecipient {
-    public:
-        DeathNotifier(AudioTrack* audioTrack) : mAudioTrack(audioTrack) { }
-    protected:
-        virtual void        binderDied(const wp<IBinder>& who);
-    private:
-        const wp<AudioTrack> mAudioTrack;
-    };
-
-    sp<DeathNotifier>       mDeathNotifier;
-    uint32_t                mSequence;              // incremented for each new IAudioTrack attempt
-    int                     mClientUid;
-    pid_t                   mClientPid;
-
-    sp<AudioSystem::AudioDeviceCallback> mDeviceCallback;
-};
-
-}; // namespace android
-
-#endif // ANDROID_AUDIOTRACK_H
diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
new file mode 120000
index 0000000..303bfcd
--- /dev/null
+++ b/include/media/AudioTrack.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/AudioTrack.h
\ No newline at end of file
diff --git a/include/media/BufferProviders.h b/include/media/BufferProviders.h
new file mode 120000
index 0000000..779bb15
--- /dev/null
+++ b/include/media/BufferProviders.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/BufferProviders.h
\ No newline at end of file
diff --git a/include/media/BufferingSettings.h b/include/media/BufferingSettings.h
new file mode 120000
index 0000000..409203f
--- /dev/null
+++ b/include/media/BufferingSettings.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/BufferingSettings.h
\ No newline at end of file
diff --git a/include/media/CasImpl.h b/include/media/CasImpl.h
new file mode 100644
index 0000000..0dd506c
--- /dev/null
+++ b/include/media/CasImpl.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CAS_IMPL_H_
+#define CAS_IMPL_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <android/media/BnCas.h>
+
+namespace android {
+namespace media {
+class ICasListener;
+}
+using namespace media;
+using namespace MediaCas;
+using binder::Status;
+class CasPlugin;
+class SharedLibrary;
+
+class CasImpl : public BnCas {
+public:
+    CasImpl(const sp<ICasListener> &listener);
+    virtual ~CasImpl();
+
+    static void OnEvent(
+            void *appData,
+            int32_t event,
+            int32_t arg,
+            uint8_t *data,
+            size_t size);
+
+    void init(const sp<SharedLibrary>& library, CasPlugin *plugin);
+    void onEvent(
+            int32_t event,
+            int32_t arg,
+            uint8_t *data,
+            size_t size);
+
+    // ICas inherits
+
+    virtual Status setPrivateData(
+            const CasData& pvtData) override;
+
+    virtual Status openSession(CasSessionId* _aidl_return) override;
+
+    virtual Status closeSession(const CasSessionId& sessionId) override;
+
+    virtual Status setSessionPrivateData(
+            const CasSessionId& sessionId,
+            const CasData& pvtData) override;
+
+    virtual Status processEcm(
+            const CasSessionId& sessionId, const ParcelableCasData& ecm) override;
+
+    virtual Status processEmm(const ParcelableCasData& emm) override;
+
+    virtual Status sendEvent(
+            int32_t event, int32_t arg, const ::std::unique_ptr<CasData> &eventData) override;
+
+    virtual Status provision(const String16& provisionString) override;
+
+    virtual Status refreshEntitlements(
+            int32_t refreshType, const ::std::unique_ptr<CasData> &refreshData) override;
+
+    virtual Status release() override;
+
+private:
+    struct PluginHolder;
+    sp<SharedLibrary> mLibrary;
+    sp<PluginHolder> mPluginHolder;
+    sp<ICasListener> mListener;
+
+    DISALLOW_EVIL_CONSTRUCTORS(CasImpl);
+};
+
+} // namespace android
+
+#endif // CAS_IMPL_H_
diff --git a/include/media/CharacterEncodingDetector.h b/include/media/CharacterEncodingDetector.h
new file mode 120000
index 0000000..2b28387
--- /dev/null
+++ b/include/media/CharacterEncodingDetector.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/CharacterEncodingDetector.h
\ No newline at end of file
diff --git a/include/media/Crypto.h b/include/media/Crypto.h
deleted file mode 100644
index 7d181d3..0000000
--- a/include/media/Crypto.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef CRYPTO_H_
-
-#define CRYPTO_H_
-
-#include <media/ICrypto.h>
-#include <utils/threads.h>
-#include <utils/KeyedVector.h>
-
-#include "SharedLibrary.h"
-
-namespace android {
-
-struct CryptoFactory;
-struct CryptoPlugin;
-
-struct Crypto : public BnCrypto {
-    Crypto();
-    virtual ~Crypto();
-
-    virtual status_t initCheck() const;
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]);
-
-    virtual status_t createPlugin(
-            const uint8_t uuid[16], const void *data, size_t size);
-
-    virtual status_t destroyPlugin();
-
-    virtual bool requiresSecureDecoderComponent(
-            const char *mime) const;
-
-    virtual void notifyResolution(uint32_t width, uint32_t height);
-
-    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId);
-
-    virtual ssize_t decrypt(
-            DestinationType dstType,
-            const uint8_t key[16],
-            const uint8_t iv[16],
-            CryptoPlugin::Mode mode,
-            const CryptoPlugin::Pattern &pattern,
-            const sp<IMemory> &sharedBuffer, size_t offset,
-            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
-            void *dstPtr,
-            AString *errorDetailMsg);
-
-private:
-    mutable Mutex mLock;
-
-    status_t mInitCheck;
-    sp<SharedLibrary> mLibrary;
-    CryptoFactory *mFactory;
-    CryptoPlugin *mPlugin;
-
-    static KeyedVector<Vector<uint8_t>, String8> mUUIDToLibraryPathMap;
-    static KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
-    static Mutex mMapLock;
-
-    void findFactoryForScheme(const uint8_t uuid[16]);
-    bool loadLibraryForScheme(const String8 &path, const uint8_t uuid[16]);
-    void closeFactory();
-
-    DISALLOW_EVIL_CONSTRUCTORS(Crypto);
-};
-
-}  // namespace android
-
-#endif  // CRYPTO_H_
diff --git a/include/media/Crypto.h b/include/media/Crypto.h
new file mode 120000
index 0000000..9af6495
--- /dev/null
+++ b/include/media/Crypto.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/Crypto.h
\ No newline at end of file
diff --git a/include/media/CryptoHal.h b/include/media/CryptoHal.h
new file mode 120000
index 0000000..92f3137
--- /dev/null
+++ b/include/media/CryptoHal.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/CryptoHal.h
\ No newline at end of file
diff --git a/include/media/DescramblerImpl.h b/include/media/DescramblerImpl.h
new file mode 100644
index 0000000..c1c79b3
--- /dev/null
+++ b/include/media/DescramblerImpl.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DESCRAMBLER_IMPL_H_
+#define DESCRAMBLER_IMPL_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <android/media/BnDescrambler.h>
+
+namespace android {
+using namespace media;
+using namespace MediaDescrambler;
+using binder::Status;
+class DescramblerPlugin;
+class SharedLibrary;
+
+class DescramblerImpl : public BnDescrambler {
+public:
+    DescramblerImpl(const sp<SharedLibrary>& library, DescramblerPlugin *plugin);
+    virtual ~DescramblerImpl();
+
+    virtual Status setMediaCasSession(
+            const CasSessionId& sessionId) override;
+
+    virtual Status requiresSecureDecoderComponent(
+            const String16& mime, bool *result) override;
+
+    virtual Status descramble(
+            const DescrambleInfo& descrambleInfo, int32_t *result) override;
+
+    virtual Status release() override;
+
+private:
+    sp<SharedLibrary> mLibrary;
+    DescramblerPlugin *mPlugin;
+
+    DISALLOW_EVIL_CONSTRUCTORS(DescramblerImpl);
+};
+
+} // namespace android
+
+#endif // DESCRAMBLER_IMPL_H_
diff --git a/include/media/Drm.h b/include/media/Drm.h
deleted file mode 100644
index d40019b..0000000
--- a/include/media/Drm.h
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef DRM_H_
-
-#define DRM_H_
-
-#include "SharedLibrary.h"
-
-#include <media/IDrm.h>
-#include <media/IDrmClient.h>
-#include <utils/threads.h>
-
-namespace android {
-
-class DrmFactory;
-class DrmPlugin;
-struct DrmSessionClientInterface;
-
-struct Drm : public BnDrm,
-             public IBinder::DeathRecipient,
-             public DrmPluginListener {
-    Drm();
-    virtual ~Drm();
-
-    virtual status_t initCheck() const;
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType);
-
-    virtual status_t createPlugin(const uint8_t uuid[16]);
-
-    virtual status_t destroyPlugin();
-
-    virtual status_t openSession(Vector<uint8_t> &sessionId);
-
-    virtual status_t closeSession(Vector<uint8_t> const &sessionId);
-
-    virtual status_t
-        getKeyRequest(Vector<uint8_t> const &sessionId,
-                      Vector<uint8_t> const &initData,
-                      String8 const &mimeType, DrmPlugin::KeyType keyType,
-                      KeyedVector<String8, String8> const &optionalParameters,
-                      Vector<uint8_t> &request, String8 &defaultUrl,
-                      DrmPlugin::KeyRequestType *keyRequestType);
-
-    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
-                                        Vector<uint8_t> const &response,
-                                        Vector<uint8_t> &keySetId);
-
-    virtual status_t removeKeys(Vector<uint8_t> const &keySetId);
-
-    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
-                                 Vector<uint8_t> const &keySetId);
-
-    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
-                                    KeyedVector<String8, String8> &infoMap) const;
-
-    virtual status_t getProvisionRequest(String8 const &certType,
-                                         String8 const &certAuthority,
-                                         Vector<uint8_t> &request,
-                                         String8 &defaulUrl);
-
-    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
-                                              Vector<uint8_t> &certificate,
-                                              Vector<uint8_t> &wrappedKey);
-
-    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops);
-    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop);
-
-    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease);
-    virtual status_t releaseAllSecureStops();
-
-    virtual status_t getPropertyString(String8 const &name, String8 &value ) const;
-    virtual status_t getPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> &value ) const;
-    virtual status_t setPropertyString(String8 const &name, String8 const &value ) const;
-    virtual status_t setPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> const &value ) const;
-
-    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
-                                        String8 const &algorithm);
-
-    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
-                                     String8 const &algorithm);
-
-    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output);
-
-    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output);
-
-    virtual status_t sign(Vector<uint8_t> const &sessionId,
-                          Vector<uint8_t> const &keyId,
-                          Vector<uint8_t> const &message,
-                          Vector<uint8_t> &signature);
-
-    virtual status_t verify(Vector<uint8_t> const &sessionId,
-                            Vector<uint8_t> const &keyId,
-                            Vector<uint8_t> const &message,
-                            Vector<uint8_t> const &signature,
-                            bool &match);
-
-    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
-                             String8 const &algorithm,
-                             Vector<uint8_t> const &message,
-                             Vector<uint8_t> const &wrappedKey,
-                             Vector<uint8_t> &signature);
-
-    virtual status_t setListener(const sp<IDrmClient>& listener);
-
-    virtual void sendEvent(DrmPlugin::EventType eventType, int extra,
-                           Vector<uint8_t> const *sessionId,
-                           Vector<uint8_t> const *data);
-
-    virtual void sendExpirationUpdate(Vector<uint8_t> const *sessionId,
-                                      int64_t expiryTimeInMS);
-
-    virtual void sendKeysChange(Vector<uint8_t> const *sessionId,
-                                Vector<DrmPlugin::KeyStatus> const *keyStatusList,
-                                bool hasNewUsableKey);
-
-    virtual void binderDied(const wp<IBinder> &the_late_who);
-
-private:
-    static Mutex mLock;
-
-    status_t mInitCheck;
-
-    sp<DrmSessionClientInterface> mDrmSessionClient;
-
-    sp<IDrmClient> mListener;
-    mutable Mutex mEventLock;
-    mutable Mutex mNotifyLock;
-
-    sp<SharedLibrary> mLibrary;
-    DrmFactory *mFactory;
-    DrmPlugin *mPlugin;
-
-    static KeyedVector<Vector<uint8_t>, String8> mUUIDToLibraryPathMap;
-    static KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
-    static Mutex mMapLock;
-
-    void findFactoryForScheme(const uint8_t uuid[16]);
-    bool loadLibraryForScheme(const String8 &path, const uint8_t uuid[16]);
-    void closeFactory();
-    void writeByteArray(Parcel &obj, Vector<uint8_t> const *array);
-
-    DISALLOW_EVIL_CONSTRUCTORS(Drm);
-};
-
-}  // namespace android
-
-#endif  // CRYPTO_H_
diff --git a/include/media/Drm.h b/include/media/Drm.h
new file mode 120000
index 0000000..ac60003
--- /dev/null
+++ b/include/media/Drm.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/Drm.h
\ No newline at end of file
diff --git a/include/media/DrmHal.h b/include/media/DrmHal.h
new file mode 120000
index 0000000..17bb667
--- /dev/null
+++ b/include/media/DrmHal.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/DrmHal.h
\ No newline at end of file
diff --git a/include/media/DrmPluginPath.h b/include/media/DrmPluginPath.h
new file mode 120000
index 0000000..9e05194
--- /dev/null
+++ b/include/media/DrmPluginPath.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/DrmPluginPath.h
\ No newline at end of file
diff --git a/include/media/DrmSessionClientInterface.h b/include/media/DrmSessionClientInterface.h
new file mode 120000
index 0000000..f4e3211
--- /dev/null
+++ b/include/media/DrmSessionClientInterface.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/DrmSessionClientInterface.h
\ No newline at end of file
diff --git a/include/media/DrmSessionManager.h b/include/media/DrmSessionManager.h
deleted file mode 100644
index ba5c268..0000000
--- a/include/media/DrmSessionManager.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef DRM_SESSION_MANAGER_H_
-
-#define DRM_SESSION_MANAGER_H_
-
-#include <media/stagefright/foundation/ABase.h>
-#include <utils/RefBase.h>
-#include <utils/KeyedVector.h>
-#include <utils/threads.h>
-#include <utils/Vector.h>
-
-namespace android {
-
-class DrmSessionManagerTest;
-struct DrmSessionClientInterface;
-struct ProcessInfoInterface;
-
-bool isEqualSessionId(const Vector<uint8_t> &sessionId1, const Vector<uint8_t> &sessionId2);
-
-struct SessionInfo {
-    sp<DrmSessionClientInterface> drm;
-    Vector<uint8_t> sessionId;
-    int64_t timeStamp;
-};
-
-typedef Vector<SessionInfo > SessionInfos;
-typedef KeyedVector<int, SessionInfos > PidSessionInfosMap;
-
-struct DrmSessionManager : public RefBase {
-    static sp<DrmSessionManager> Instance();
-
-    DrmSessionManager();
-    DrmSessionManager(sp<ProcessInfoInterface> processInfo);
-
-    void addSession(int pid, sp<DrmSessionClientInterface> drm, const Vector<uint8_t>& sessionId);
-    void useSession(const Vector<uint8_t>& sessionId);
-    void removeSession(const Vector<uint8_t>& sessionId);
-    void removeDrm(sp<DrmSessionClientInterface> drm);
-    bool reclaimSession(int callingPid);
-
-protected:
-    virtual ~DrmSessionManager();
-
-private:
-    friend class DrmSessionManagerTest;
-
-    int64_t getTime_l();
-    bool getLowestPriority_l(int* lowestPriorityPid, int* lowestPriority);
-    bool getLeastUsedSession_l(
-            int pid, sp<DrmSessionClientInterface>* drm, Vector<uint8_t>* sessionId);
-
-    sp<ProcessInfoInterface> mProcessInfo;
-    mutable Mutex mLock;
-    PidSessionInfosMap mSessionMap;
-    int64_t mTime;
-
-    DISALLOW_EVIL_CONSTRUCTORS(DrmSessionManager);
-};
-
-}  // namespace android
-
-#endif  // DRM_SESSION_MANAGER_H_
diff --git a/include/media/DrmSessionManager.h b/include/media/DrmSessionManager.h
new file mode 120000
index 0000000..f0a47bf
--- /dev/null
+++ b/include/media/DrmSessionManager.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/DrmSessionManager.h
\ No newline at end of file
diff --git a/include/media/EffectsFactoryApi.h b/include/media/EffectsFactoryApi.h
new file mode 120000
index 0000000..288590a
--- /dev/null
+++ b/include/media/EffectsFactoryApi.h
@@ -0,0 +1 @@
+../../media/libeffects/factory/include/media/EffectsFactoryApi.h
\ No newline at end of file
diff --git a/include/media/ExtendedAudioBufferProvider.h b/include/media/ExtendedAudioBufferProvider.h
deleted file mode 100644
index 168ceed..0000000
--- a/include/media/ExtendedAudioBufferProvider.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_EXTENDED_AUDIO_BUFFER_PROVIDER_H
-#define ANDROID_EXTENDED_AUDIO_BUFFER_PROVIDER_H
-
-#include <media/AudioBufferProvider.h>
-#include <media/AudioTimestamp.h>
-
-namespace android {
-
-class ExtendedAudioBufferProvider : public AudioBufferProvider {
-public:
-    virtual size_t  framesReady() const = 0;  // see description at AudioFlinger.h
-
-    // Return the total number of frames that have been obtained and released
-    virtual int64_t  framesReleased() const { return 0; }
-
-    // Invoked by buffer consumer when a new timestamp is available.
-    // Default implementation ignores the timestamp.
-    virtual void    onTimestamp(const ExtendedTimestamp& timestamp) { }
-};
-
-}   // namespace android
-
-#endif  // ANDROID_EXTENDED_AUDIO_BUFFER_PROVIDER_H
diff --git a/include/media/ExtendedAudioBufferProvider.h b/include/media/ExtendedAudioBufferProvider.h
new file mode 120000
index 0000000..d653cc3
--- /dev/null
+++ b/include/media/ExtendedAudioBufferProvider.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/ExtendedAudioBufferProvider.h
\ No newline at end of file
diff --git a/include/media/IAudioFlinger.h b/include/media/IAudioFlinger.h
deleted file mode 100644
index 096f7ef..0000000
--- a/include/media/IAudioFlinger.h
+++ /dev/null
@@ -1,266 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IAUDIOFLINGER_H
-#define ANDROID_IAUDIOFLINGER_H
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <utils/RefBase.h>
-#include <utils/Errors.h>
-#include <binder/IInterface.h>
-#include <media/IAudioTrack.h>
-#include <media/IAudioRecord.h>
-#include <media/IAudioFlingerClient.h>
-#include <system/audio.h>
-#include <system/audio_policy.h>
-#include <hardware/audio_policy.h>
-#include <hardware/audio_effect.h>
-#include <media/IEffect.h>
-#include <media/IEffectClient.h>
-#include <utils/String8.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class IAudioFlinger : public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(AudioFlinger);
-
-
-    // invariant on exit for all APIs that return an sp<>:
-    //   (return value != 0) == (*status == NO_ERROR)
-
-    /* create an audio track and registers it with AudioFlinger.
-     * return null if the track cannot be created.
-     */
-    virtual sp<IAudioTrack> createTrack(
-                                audio_stream_type_t streamType,
-                                uint32_t sampleRate,
-                                audio_format_t format,
-                                audio_channel_mask_t channelMask,
-                                size_t *pFrameCount,
-                                audio_output_flags_t *flags,
-                                const sp<IMemory>& sharedBuffer,
-                                // On successful return, AudioFlinger takes over the handle
-                                // reference and will release it when the track is destroyed.
-                                // However on failure, the client is responsible for release.
-                                audio_io_handle_t output,
-                                pid_t pid,
-                                pid_t tid,  // -1 means unused, otherwise must be valid non-0
-                                audio_session_t *sessionId,
-                                int clientUid,
-                                status_t *status) = 0;
-
-    virtual sp<IAudioRecord> openRecord(
-                                // On successful return, AudioFlinger takes over the handle
-                                // reference and will release it when the track is destroyed.
-                                // However on failure, the client is responsible for release.
-                                audio_io_handle_t input,
-                                uint32_t sampleRate,
-                                audio_format_t format,
-                                audio_channel_mask_t channelMask,
-                                const String16& callingPackage,
-                                size_t *pFrameCount,
-                                audio_input_flags_t *flags,
-                                pid_t pid,
-                                pid_t tid,  // -1 means unused, otherwise must be valid non-0
-                                int clientUid,
-                                audio_session_t *sessionId,
-                                size_t *notificationFrames,
-                                sp<IMemory>& cblk,
-                                sp<IMemory>& buffers,   // return value 0 means it follows cblk
-                                status_t *status) = 0;
-
-    // FIXME Surprisingly, format/latency don't work for input handles
-
-    /* query the audio hardware state. This state never changes,
-     * and therefore can be cached.
-     */
-    virtual     uint32_t    sampleRate(audio_io_handle_t ioHandle) const = 0;
-
-    // reserved; formerly channelCount()
-
-    virtual     audio_format_t format(audio_io_handle_t output) const = 0;
-    virtual     size_t      frameCount(audio_io_handle_t ioHandle) const = 0;
-
-    // return estimated latency in milliseconds
-    virtual     uint32_t    latency(audio_io_handle_t output) const = 0;
-
-    /* set/get the audio hardware state. This will probably be used by
-     * the preference panel, mostly.
-     */
-    virtual     status_t    setMasterVolume(float value) = 0;
-    virtual     status_t    setMasterMute(bool muted) = 0;
-
-    virtual     float       masterVolume() const = 0;
-    virtual     bool        masterMute() const = 0;
-
-    /* set/get stream type state. This will probably be used by
-     * the preference panel, mostly.
-     */
-    virtual     status_t    setStreamVolume(audio_stream_type_t stream, float value,
-                                    audio_io_handle_t output) = 0;
-    virtual     status_t    setStreamMute(audio_stream_type_t stream, bool muted) = 0;
-
-    virtual     float       streamVolume(audio_stream_type_t stream,
-                                    audio_io_handle_t output) const = 0;
-    virtual     bool        streamMute(audio_stream_type_t stream) const = 0;
-
-    // set audio mode
-    virtual     status_t    setMode(audio_mode_t mode) = 0;
-
-    // mic mute/state
-    virtual     status_t    setMicMute(bool state) = 0;
-    virtual     bool        getMicMute() const = 0;
-
-    virtual     status_t    setParameters(audio_io_handle_t ioHandle,
-                                    const String8& keyValuePairs) = 0;
-    virtual     String8     getParameters(audio_io_handle_t ioHandle, const String8& keys)
-                                    const = 0;
-
-    // Register an object to receive audio input/output change and track notifications.
-    // For a given calling pid, AudioFlinger disregards any registrations after the first.
-    // Thus the IAudioFlingerClient must be a singleton per process.
-    virtual void registerClient(const sp<IAudioFlingerClient>& client) = 0;
-
-    // retrieve the audio recording buffer size
-    // FIXME This API assumes a route, and so should be deprecated.
-    virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
-            audio_channel_mask_t channelMask) const = 0;
-
-    virtual status_t openOutput(audio_module_handle_t module,
-                                audio_io_handle_t *output,
-                                audio_config_t *config,
-                                audio_devices_t *devices,
-                                const String8& address,
-                                uint32_t *latencyMs,
-                                audio_output_flags_t flags) = 0;
-    virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1,
-                                    audio_io_handle_t output2) = 0;
-    virtual status_t closeOutput(audio_io_handle_t output) = 0;
-    virtual status_t suspendOutput(audio_io_handle_t output) = 0;
-    virtual status_t restoreOutput(audio_io_handle_t output) = 0;
-
-    virtual status_t openInput(audio_module_handle_t module,
-                               audio_io_handle_t *input,
-                               audio_config_t *config,
-                               audio_devices_t *device,
-                               const String8& address,
-                               audio_source_t source,
-                               audio_input_flags_t flags) = 0;
-    virtual status_t closeInput(audio_io_handle_t input) = 0;
-
-    virtual status_t invalidateStream(audio_stream_type_t stream) = 0;
-
-    virtual status_t setVoiceVolume(float volume) = 0;
-
-    virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames,
-                                    audio_io_handle_t output) const = 0;
-
-    virtual uint32_t getInputFramesLost(audio_io_handle_t ioHandle) const = 0;
-
-    virtual audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use) = 0;
-
-    virtual void acquireAudioSessionId(audio_session_t audioSession, pid_t pid) = 0;
-    virtual void releaseAudioSessionId(audio_session_t audioSession, pid_t pid) = 0;
-
-    virtual status_t queryNumberEffects(uint32_t *numEffects) const = 0;
-
-    virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const = 0;
-
-    virtual status_t getEffectDescriptor(const effect_uuid_t *pEffectUUID,
-                                        effect_descriptor_t *pDescriptor) const = 0;
-
-    virtual sp<IEffect> createEffect(
-                                    effect_descriptor_t *pDesc,
-                                    const sp<IEffectClient>& client,
-                                    int32_t priority,
-                                    // AudioFlinger doesn't take over handle reference from client
-                                    audio_io_handle_t output,
-                                    audio_session_t sessionId,
-                                    const String16& callingPackage,
-                                    status_t *status,
-                                    int *id,
-                                    int *enabled) = 0;
-
-    virtual status_t moveEffects(audio_session_t session, audio_io_handle_t srcOutput,
-                                    audio_io_handle_t dstOutput) = 0;
-
-    virtual audio_module_handle_t loadHwModule(const char *name) = 0;
-
-    // helpers for android.media.AudioManager.getProperty(), see description there for meaning
-    // FIXME move these APIs to AudioPolicy to permit a more accurate implementation
-    // that looks on primary device for a stream with fast flag, primary flag, or first one.
-    virtual uint32_t getPrimaryOutputSamplingRate() = 0;
-    virtual size_t getPrimaryOutputFrameCount() = 0;
-
-    // Intended for AudioService to inform AudioFlinger of device's low RAM attribute,
-    // and should be called at most once.  For a definition of what "low RAM" means, see
-    // android.app.ActivityManager.isLowRamDevice().
-    virtual status_t setLowRamDevice(bool isLowRamDevice) = 0;
-
-    /* List available audio ports and their attributes */
-    virtual status_t listAudioPorts(unsigned int *num_ports,
-                                    struct audio_port *ports) = 0;
-
-    /* Get attributes for a given audio port */
-    virtual status_t getAudioPort(struct audio_port *port) = 0;
-
-    /* Create an audio patch between several source and sink ports */
-    virtual status_t createAudioPatch(const struct audio_patch *patch,
-                                       audio_patch_handle_t *handle) = 0;
-
-    /* Release an audio patch */
-    virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0;
-
-    /* List existing audio patches */
-    virtual status_t listAudioPatches(unsigned int *num_patches,
-                                      struct audio_patch *patches) = 0;
-    /* Set audio port configuration */
-    virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0;
-
-    /* Get the HW synchronization source used for an audio session */
-    virtual audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId) = 0;
-
-    /* Indicate JAVA services are ready (scheduling, power management ...) */
-    virtual status_t systemReady() = 0;
-
-    // Returns the number of frames per audio HAL buffer.
-    virtual size_t frameCountHAL(audio_io_handle_t ioHandle) const = 0;
-};
-
-
-// ----------------------------------------------------------------------------
-
-class BnAudioFlinger : public BnInterface<IAudioFlinger>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-// ----------------------------------------------------------------------------
-
-}; // namespace android
-
-#endif // ANDROID_IAUDIOFLINGER_H
diff --git a/include/media/IAudioFlinger.h b/include/media/IAudioFlinger.h
new file mode 120000
index 0000000..ef6f5be
--- /dev/null
+++ b/include/media/IAudioFlinger.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/IAudioFlinger.h
\ No newline at end of file
diff --git a/include/media/IAudioFlingerClient.h b/include/media/IAudioFlingerClient.h
new file mode 120000
index 0000000..dc481e8
--- /dev/null
+++ b/include/media/IAudioFlingerClient.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/IAudioFlingerClient.h
\ No newline at end of file
diff --git a/include/media/IAudioPolicyService.h b/include/media/IAudioPolicyService.h
deleted file mode 100644
index 0e9e3bc..0000000
--- a/include/media/IAudioPolicyService.h
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IAUDIOPOLICYSERVICE_H
-#define ANDROID_IAUDIOPOLICYSERVICE_H
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <utils/RefBase.h>
-#include <utils/Errors.h>
-#include <binder/IInterface.h>
-#include <media/AudioSystem.h>
-#include <media/AudioPolicy.h>
-#include <media/IAudioPolicyServiceClient.h>
-
-#include <system/audio_policy.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class IAudioPolicyService : public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(AudioPolicyService);
-
-    //
-    // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
-    //
-    virtual status_t setDeviceConnectionState(audio_devices_t device,
-                                              audio_policy_dev_state_t state,
-                                              const char *device_address,
-                                              const char *device_name) = 0;
-    virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
-                                                                  const char *device_address) = 0;
-    virtual status_t setPhoneState(audio_mode_t state) = 0;
-    virtual status_t setForceUse(audio_policy_force_use_t usage,
-                                    audio_policy_forced_cfg_t config) = 0;
-    virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0;
-    virtual audio_io_handle_t getOutput(audio_stream_type_t stream,
-                                        uint32_t samplingRate = 0,
-                                        audio_format_t format = AUDIO_FORMAT_DEFAULT,
-                                        audio_channel_mask_t channelMask = 0,
-                                        audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                        const audio_offload_info_t *offloadInfo = NULL) = 0;
-    virtual status_t getOutputForAttr(const audio_attributes_t *attr,
-                                      audio_io_handle_t *output,
-                                      audio_session_t session,
-                                      audio_stream_type_t *stream,
-                                      uid_t uid,
-                                      uint32_t samplingRate = 0,
-                                      audio_format_t format = AUDIO_FORMAT_DEFAULT,
-                                      audio_channel_mask_t channelMask = 0,
-                                      audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                      audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
-                                      const audio_offload_info_t *offloadInfo = NULL) = 0;
-    virtual status_t startOutput(audio_io_handle_t output,
-                                 audio_stream_type_t stream,
-                                 audio_session_t session) = 0;
-    virtual status_t stopOutput(audio_io_handle_t output,
-                                audio_stream_type_t stream,
-                                audio_session_t session) = 0;
-    virtual void releaseOutput(audio_io_handle_t output,
-                               audio_stream_type_t stream,
-                               audio_session_t session) = 0;
-    virtual status_t  getInputForAttr(const audio_attributes_t *attr,
-                              audio_io_handle_t *input,
-                              audio_session_t session,
-                              pid_t pid,
-                              uid_t uid,
-                              uint32_t samplingRate,
-                              audio_format_t format,
-                              audio_channel_mask_t channelMask,
-                              audio_input_flags_t flags,
-                              audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE) = 0;
-    virtual status_t startInput(audio_io_handle_t input,
-                                audio_session_t session) = 0;
-    virtual status_t stopInput(audio_io_handle_t input,
-                               audio_session_t session) = 0;
-    virtual void releaseInput(audio_io_handle_t input,
-                              audio_session_t session) = 0;
-    virtual status_t initStreamVolume(audio_stream_type_t stream,
-                                      int indexMin,
-                                      int indexMax) = 0;
-    virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
-                                          int index,
-                                          audio_devices_t device) = 0;
-    virtual status_t getStreamVolumeIndex(audio_stream_type_t stream,
-                                          int *index,
-                                          audio_devices_t device) = 0;
-    virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0;
-    virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream) = 0;
-    virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) = 0;
-    virtual status_t registerEffect(const effect_descriptor_t *desc,
-                                    audio_io_handle_t io,
-                                    uint32_t strategy,
-                                    audio_session_t session,
-                                    int id) = 0;
-    virtual status_t unregisterEffect(int id) = 0;
-    virtual status_t setEffectEnabled(int id, bool enabled) = 0;
-    virtual bool     isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const = 0;
-    virtual bool     isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0)
-                             const = 0;
-    virtual bool     isSourceActive(audio_source_t source) const = 0;
-    virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
-                                              effect_descriptor_t *descriptors,
-                                              uint32_t *count) = 0;
-   // Check if offload is possible for given format, stream type, sample rate,
-    // bit rate, duration, video and streaming or offload property is enabled
-    virtual bool isOffloadSupported(const audio_offload_info_t& info) = 0;
-
-    /* List available audio ports and their attributes */
-    virtual status_t listAudioPorts(audio_port_role_t role,
-                                    audio_port_type_t type,
-                                    unsigned int *num_ports,
-                                    struct audio_port *ports,
-                                    unsigned int *generation) = 0;
-
-    /* Get attributes for a given audio port */
-    virtual status_t getAudioPort(struct audio_port *port) = 0;
-
-    /* Create an audio patch between several source and sink ports */
-    virtual status_t createAudioPatch(const struct audio_patch *patch,
-                                       audio_patch_handle_t *handle) = 0;
-
-    /* Release an audio patch */
-    virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0;
-
-    /* List existing audio patches */
-    virtual status_t listAudioPatches(unsigned int *num_patches,
-                                      struct audio_patch *patches,
-                                      unsigned int *generation) = 0;
-    /* Set audio port configuration */
-    virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0;
-
-    virtual void registerClient(const sp<IAudioPolicyServiceClient>& client) = 0;
-
-    virtual void setAudioPortCallbacksEnabled(bool enabled) = 0;
-
-    virtual status_t acquireSoundTriggerSession(audio_session_t *session,
-                                           audio_io_handle_t *ioHandle,
-                                           audio_devices_t *device) = 0;
-
-    virtual status_t releaseSoundTriggerSession(audio_session_t session) = 0;
-
-    virtual audio_mode_t getPhoneState() = 0;
-
-    virtual status_t registerPolicyMixes(Vector<AudioMix> mixes, bool registration) = 0;
-
-    virtual status_t startAudioSource(const struct audio_port_config *source,
-                                      const audio_attributes_t *attributes,
-                                      audio_io_handle_t *handle) = 0;
-    virtual status_t stopAudioSource(audio_io_handle_t handle) = 0;
-
-    virtual status_t setMasterMono(bool mono) = 0;
-    virtual status_t getMasterMono(bool *mono) = 0;
-};
-
-
-// ----------------------------------------------------------------------------
-
-class BnAudioPolicyService : public BnInterface<IAudioPolicyService>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-// ----------------------------------------------------------------------------
-
-}; // namespace android
-
-#endif // ANDROID_IAUDIOPOLICYSERVICE_H
diff --git a/include/media/IAudioPolicyService.h b/include/media/IAudioPolicyService.h
new file mode 120000
index 0000000..08101fc
--- /dev/null
+++ b/include/media/IAudioPolicyService.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/IAudioPolicyService.h
\ No newline at end of file
diff --git a/include/media/IAudioPolicyServiceClient.h b/include/media/IAudioPolicyServiceClient.h
new file mode 120000
index 0000000..0d4b3e7
--- /dev/null
+++ b/include/media/IAudioPolicyServiceClient.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/IAudioPolicyServiceClient.h
\ No newline at end of file
diff --git a/include/media/IAudioRecord.h b/include/media/IAudioRecord.h
new file mode 120000
index 0000000..7fbf8f2
--- /dev/null
+++ b/include/media/IAudioRecord.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/IAudioRecord.h
\ No newline at end of file
diff --git a/include/media/IAudioTrack.h b/include/media/IAudioTrack.h
deleted file mode 100644
index a31cec6..0000000
--- a/include/media/IAudioTrack.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IAUDIOTRACK_H
-#define ANDROID_IAUDIOTRACK_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <utils/RefBase.h>
-#include <utils/Errors.h>
-#include <binder/IInterface.h>
-#include <binder/IMemory.h>
-#include <utils/String8.h>
-#include <media/AudioTimestamp.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class IAudioTrack : public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(AudioTrack);
-
-    /* Get this track's control block */
-    virtual sp<IMemory> getCblk() const = 0;
-
-    /* After it's created the track is not active. Call start() to
-     * make it active.
-     */
-    virtual status_t    start() = 0;
-
-    /* Stop a track. If set, the callback will cease being called and
-     * obtainBuffer will return an error. Buffers that are already released
-     * will continue to be processed, unless/until flush() is called.
-     */
-    virtual void        stop() = 0;
-
-    /* Flush a stopped or paused track. All pending/released buffers are discarded.
-     * This function has no effect if the track is not stopped or paused.
-     */
-    virtual void        flush() = 0;
-
-    /* Pause a track. If set, the callback will cease being called and
-     * obtainBuffer will return an error. Buffers that are already released
-     * will continue to be processed, unless/until flush() is called.
-     */
-    virtual void        pause() = 0;
-
-    /* Attach track auxiliary output to specified effect. Use effectId = 0
-     * to detach track from effect.
-     */
-    virtual status_t    attachAuxEffect(int effectId) = 0;
-
-    /* Send parameters to the audio hardware */
-    virtual status_t    setParameters(const String8& keyValuePairs) = 0;
-
-    /* Return NO_ERROR if timestamp is valid.  timestamp is undefined otherwise. */
-    virtual status_t    getTimestamp(AudioTimestamp& timestamp) = 0;
-
-    /* Signal the playback thread for a change in control block */
-    virtual void        signal() = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnAudioTrack : public BnInterface<IAudioTrack>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-// ----------------------------------------------------------------------------
-
-}; // namespace android
-
-#endif // ANDROID_IAUDIOTRACK_H
diff --git a/include/media/IAudioTrack.h b/include/media/IAudioTrack.h
new file mode 120000
index 0000000..7bab1fd
--- /dev/null
+++ b/include/media/IAudioTrack.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/IAudioTrack.h
\ No newline at end of file
diff --git a/include/media/ICrypto.h b/include/media/ICrypto.h
deleted file mode 100644
index a4bfaf8..0000000
--- a/include/media/ICrypto.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <binder/IInterface.h>
-#include <media/stagefright/foundation/ABase.h>
-#include <media/hardware/CryptoAPI.h>
-
-#ifndef ANDROID_ICRYPTO_H_
-
-#define ANDROID_ICRYPTO_H_
-
-namespace android {
-
-struct AString;
-class IMemory;
-
-struct ICrypto : public IInterface {
-    DECLARE_META_INTERFACE(Crypto);
-
-    virtual status_t initCheck() const = 0;
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) = 0;
-
-    virtual status_t createPlugin(
-            const uint8_t uuid[16], const void *data, size_t size) = 0;
-
-    virtual status_t destroyPlugin() = 0;
-
-    virtual bool requiresSecureDecoderComponent(
-            const char *mime) const = 0;
-
-    virtual void notifyResolution(uint32_t width, uint32_t height) = 0;
-
-    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId) = 0;
-
-    enum DestinationType {
-        kDestinationTypeVmPointer,    // non-secure
-        kDestinationTypeOpaqueHandle, // secure
-        kDestinationTypeNativeHandle  // secure
-    };
-
-    virtual ssize_t decrypt(
-            DestinationType dstType,
-            const uint8_t key[16],
-            const uint8_t iv[16],
-            CryptoPlugin::Mode mode,
-            const CryptoPlugin::Pattern &pattern,
-            const sp<IMemory> &sharedBuffer, size_t offset,
-            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
-            void *dstPtr,
-            AString *errorDetailMsg) = 0;
-
-private:
-    DISALLOW_EVIL_CONSTRUCTORS(ICrypto);
-};
-
-struct BnCrypto : public BnInterface<ICrypto> {
-    virtual status_t onTransact(
-            uint32_t code, const Parcel &data, Parcel *reply,
-            uint32_t flags = 0);
-private:
-    void readVector(const Parcel &data, Vector<uint8_t> &vector) const;
-    void writeVector(Parcel *reply, Vector<uint8_t> const &vector) const;
-};
-
-}  // namespace android
-
-#endif // ANDROID_ICRYPTO_H_
diff --git a/include/media/ICrypto.h b/include/media/ICrypto.h
new file mode 120000
index 0000000..b250e07
--- /dev/null
+++ b/include/media/ICrypto.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/ICrypto.h
\ No newline at end of file
diff --git a/include/media/IDataSource.h b/include/media/IDataSource.h
new file mode 120000
index 0000000..41cdd8b
--- /dev/null
+++ b/include/media/IDataSource.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IDataSource.h
\ No newline at end of file
diff --git a/include/media/IDrm.h b/include/media/IDrm.h
deleted file mode 100644
index fd51fd0..0000000
--- a/include/media/IDrm.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <binder/IInterface.h>
-#include <media/stagefright/foundation/ABase.h>
-#include <media/drm/DrmAPI.h>
-#include <media/IDrmClient.h>
-
-#ifndef ANDROID_IDRM_H_
-
-#define ANDROID_IDRM_H_
-
-namespace android {
-
-struct AString;
-
-struct IDrm : public IInterface {
-    DECLARE_META_INTERFACE(Drm);
-
-    virtual status_t initCheck() const = 0;
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType) = 0;
-
-    virtual status_t createPlugin(const uint8_t uuid[16]) = 0;
-
-    virtual status_t destroyPlugin() = 0;
-
-    virtual status_t openSession(Vector<uint8_t> &sessionId) = 0;
-
-    virtual status_t closeSession(Vector<uint8_t> const &sessionId) = 0;
-
-    virtual status_t
-        getKeyRequest(Vector<uint8_t> const &sessionId,
-                      Vector<uint8_t> const &initData,
-                      String8 const &mimeType, DrmPlugin::KeyType keyType,
-                      KeyedVector<String8, String8> const &optionalParameters,
-                      Vector<uint8_t> &request, String8 &defaultUrl,
-                      DrmPlugin::KeyRequestType *keyRequestType) = 0;
-
-    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
-                                        Vector<uint8_t> const &response,
-                                        Vector<uint8_t> &keySetId) = 0;
-
-    virtual status_t removeKeys(Vector<uint8_t> const &keySetId) = 0;
-
-    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
-                                 Vector<uint8_t> const &keySetId) = 0;
-
-    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
-                                    KeyedVector<String8, String8> &infoMap) const = 0;
-
-    virtual status_t getProvisionRequest(String8 const &certType,
-                                         String8 const &certAuthority,
-                                         Vector<uint8_t> &request,
-                                         String8 &defaulUrl) = 0;
-
-    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
-                                              Vector<uint8_t> &certificate,
-                                              Vector<uint8_t> &wrappedKey) = 0;
-
-    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops) = 0;
-    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) = 0;
-
-    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) = 0;
-    virtual status_t releaseAllSecureStops() = 0;
-
-    virtual status_t getPropertyString(String8 const &name, String8 &value) const = 0;
-    virtual status_t getPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> &value) const = 0;
-    virtual status_t setPropertyString(String8 const &name,
-                                       String8 const &value ) const = 0;
-    virtual status_t setPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> const &value) const = 0;
-
-    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
-                                        String8 const &algorithm) = 0;
-
-    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
-                                     String8 const &algorithm) = 0;
-
-    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output) = 0;
-
-    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output) = 0;
-
-    virtual status_t sign(Vector<uint8_t> const &sessionId,
-                          Vector<uint8_t> const &keyId,
-                          Vector<uint8_t> const &message,
-                          Vector<uint8_t> &signature) = 0;
-
-    virtual status_t verify(Vector<uint8_t> const &sessionId,
-                            Vector<uint8_t> const &keyId,
-                            Vector<uint8_t> const &message,
-                            Vector<uint8_t> const &signature,
-                            bool &match) = 0;
-
-    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
-                             String8 const &algorithm,
-                             Vector<uint8_t> const &message,
-                             Vector<uint8_t> const &wrappedKey,
-                             Vector<uint8_t> &signature) = 0;
-
-    virtual status_t setListener(const sp<IDrmClient>& listener) = 0;
-
-private:
-    DISALLOW_EVIL_CONSTRUCTORS(IDrm);
-};
-
-struct BnDrm : public BnInterface<IDrm> {
-    virtual status_t onTransact(
-            uint32_t code, const Parcel &data, Parcel *reply,
-            uint32_t flags = 0);
-private:
-    void readVector(const Parcel &data, Vector<uint8_t> &vector) const;
-    void writeVector(Parcel *reply, Vector<uint8_t> const &vector) const;
-};
-
-}  // namespace android
-
-#endif // ANDROID_IDRM_H_
diff --git a/include/media/IDrm.h b/include/media/IDrm.h
new file mode 120000
index 0000000..841bb1b
--- /dev/null
+++ b/include/media/IDrm.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IDrm.h
\ No newline at end of file
diff --git a/include/media/IDrmClient.h b/include/media/IDrmClient.h
new file mode 120000
index 0000000..10aa5c0
--- /dev/null
+++ b/include/media/IDrmClient.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IDrmClient.h
\ No newline at end of file
diff --git a/include/media/IEffect.h b/include/media/IEffect.h
new file mode 120000
index 0000000..2fb8bfb
--- /dev/null
+++ b/include/media/IEffect.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/IEffect.h
\ No newline at end of file
diff --git a/include/media/IEffectClient.h b/include/media/IEffectClient.h
new file mode 120000
index 0000000..b4e39cf
--- /dev/null
+++ b/include/media/IEffectClient.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/IEffectClient.h
\ No newline at end of file
diff --git a/include/media/IHDCP.h b/include/media/IHDCP.h
new file mode 120000
index 0000000..9d4568e
--- /dev/null
+++ b/include/media/IHDCP.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IHDCP.h
\ No newline at end of file
diff --git a/include/media/IMediaAnalyticsService.h b/include/media/IMediaAnalyticsService.h
new file mode 120000
index 0000000..a596d60
--- /dev/null
+++ b/include/media/IMediaAnalyticsService.h
@@ -0,0 +1 @@
+../../media/libmediametrics/include/IMediaAnalyticsService.h
\ No newline at end of file
diff --git a/include/media/IMediaCodecList.h b/include/media/IMediaCodecList.h
new file mode 120000
index 0000000..2186312
--- /dev/null
+++ b/include/media/IMediaCodecList.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaCodecList.h
\ No newline at end of file
diff --git a/include/media/IMediaCodecService.h b/include/media/IMediaCodecService.h
deleted file mode 100644
index 984a0fd..0000000
--- a/include/media/IMediaCodecService.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IMEDIACODECSERVICE_H
-#define ANDROID_IMEDIACODECSERVICE_H
-
-#include <binder/IInterface.h>
-#include <binder/IMemory.h>
-#include <binder/Parcel.h>
-#include <media/IDataSource.h>
-#include <include/OMX.h>
-
-namespace android {
-
-class IMediaCodecService: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(MediaCodecService);
-
-    virtual sp<IOMX> getOMX() = 0;
-};
-
-class BnMediaCodecService: public BnInterface<IMediaCodecService>
-{
-public:
-    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
-                                uint32_t flags = 0);
-};
-
-}   // namespace android
-
-#endif  // ANDROID_IMEDIACODECSERVICE_H
diff --git a/include/media/IMediaCodecService.h b/include/media/IMediaCodecService.h
new file mode 120000
index 0000000..37f6822
--- /dev/null
+++ b/include/media/IMediaCodecService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaCodecService.h
\ No newline at end of file
diff --git a/include/media/IMediaDeathNotifier.h b/include/media/IMediaDeathNotifier.h
new file mode 120000
index 0000000..ce3b8f0
--- /dev/null
+++ b/include/media/IMediaDeathNotifier.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaDeathNotifier.h
\ No newline at end of file
diff --git a/include/media/IMediaDrmService.h b/include/media/IMediaDrmService.h
new file mode 120000
index 0000000..f3c260f
--- /dev/null
+++ b/include/media/IMediaDrmService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaDrmService.h
\ No newline at end of file
diff --git a/include/media/IMediaExtractor.h b/include/media/IMediaExtractor.h
deleted file mode 100644
index 34b15e9..0000000
--- a/include/media/IMediaExtractor.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef IMEDIA_EXTRACTOR_BASE_H_
-
-#define IMEDIA_EXTRACTOR_BASE_H_
-
-#include <media/IMediaSource.h>
-#include <media/stagefright/DataSource.h>
-
-namespace android {
-
-class MetaData;
-
-class IMediaExtractor : public IInterface {
-public:
-    DECLARE_META_INTERFACE(MediaExtractor);
-
-    virtual size_t countTracks() = 0;
-    virtual sp<IMediaSource> getTrack(size_t index) = 0;
-
-    enum GetTrackMetaDataFlags {
-        kIncludeExtensiveMetaData = 1
-    };
-    virtual sp<MetaData> getTrackMetaData(
-            size_t index, uint32_t flags = 0) = 0;
-
-    // Return container specific meta-data. The default implementation
-    // returns an empty metadata object.
-    virtual sp<MetaData> getMetaData() = 0;
-
-    enum Flags {
-        CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
-        CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
-        CAN_PAUSE          = 4,
-        CAN_SEEK           = 8,  // the "seek bar"
-    };
-
-    // If subclasses do _not_ override this, the default is
-    // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
-    virtual uint32_t flags() const = 0;
-
-    // for DRM
-    virtual void setDrmFlag(bool flag) = 0;
-    virtual bool getDrmFlag() = 0;
-    virtual char* getDrmTrackInfo(size_t trackID, int *len)  = 0;
-    virtual void setUID(uid_t uid)  = 0;
-
-    virtual const char * name() = 0;
-};
-
-
-class BnMediaExtractor: public BnInterface<IMediaExtractor>
-{
-public:
-    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
-                                uint32_t flags = 0);
-};
-
-void registerMediaExtractor(
-        const sp<IMediaExtractor> &extractor,
-        const sp<DataSource> &source,
-        const char *mime);
-
-void registerMediaSource(
-        const sp<IMediaExtractor> &extractor,
-        const sp<IMediaSource> &source);
-
-status_t dumpExtractors(int fd, const Vector<String16>& args);
-
-
-}  // namespace android
-
-#endif  // IMEDIA_EXTRACTOR_BASE_H_
diff --git a/include/media/IMediaExtractor.h b/include/media/IMediaExtractor.h
new file mode 120000
index 0000000..8708c8c
--- /dev/null
+++ b/include/media/IMediaExtractor.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaExtractor.h
\ No newline at end of file
diff --git a/include/media/IMediaExtractorService.h b/include/media/IMediaExtractorService.h
deleted file mode 100644
index 4d7b317..0000000
--- a/include/media/IMediaExtractorService.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IMEDIAEXTRACTORSERVICE_H
-#define ANDROID_IMEDIAEXTRACTORSERVICE_H
-
-#include <binder/IInterface.h>
-#include <binder/IMemory.h>
-#include <binder/Parcel.h>
-#include <media/IDataSource.h>
-#include <media/IMediaExtractor.h>
-
-namespace android {
-
-class IMediaExtractorService: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(MediaExtractorService);
-
-    virtual sp<IMediaExtractor> makeExtractor(const sp<IDataSource> &source, const char *mime) = 0;
-
-};
-
-class BnMediaExtractorService: public BnInterface<IMediaExtractorService>
-{
-public:
-    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
-                                uint32_t flags = 0);
-};
-
-}   // namespace android
-
-#endif  // ANDROID_IMEDIAEXTRACTORSERVICE_H
diff --git a/include/media/IMediaExtractorService.h b/include/media/IMediaExtractorService.h
new file mode 120000
index 0000000..3ee9f1e
--- /dev/null
+++ b/include/media/IMediaExtractorService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaExtractorService.h
\ No newline at end of file
diff --git a/include/media/IMediaHTTPConnection.h b/include/media/IMediaHTTPConnection.h
new file mode 120000
index 0000000..0970c15
--- /dev/null
+++ b/include/media/IMediaHTTPConnection.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaHTTPConnection.h
\ No newline at end of file
diff --git a/include/media/IMediaHTTPService.h b/include/media/IMediaHTTPService.h
new file mode 120000
index 0000000..b90c34f
--- /dev/null
+++ b/include/media/IMediaHTTPService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaHTTPService.h
\ No newline at end of file
diff --git a/include/media/IMediaLogService.h b/include/media/IMediaLogService.h
deleted file mode 100644
index 1f5777e..0000000
--- a/include/media/IMediaLogService.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IMEDIALOGSERVICE_H
-#define ANDROID_IMEDIALOGSERVICE_H
-
-#include <binder/IInterface.h>
-#include <binder/IMemory.h>
-#include <binder/Parcel.h>
-
-namespace android {
-
-class IMediaLogService: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(MediaLogService);
-
-    virtual void    registerWriter(const sp<IMemory>& shared, size_t size, const char *name) = 0;
-    virtual void    unregisterWriter(const sp<IMemory>& shared) = 0;
-
-};
-
-class BnMediaLogService: public BnInterface<IMediaLogService>
-{
-public:
-    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
-                                uint32_t flags = 0);
-};
-
-}   // namespace android
-
-#endif  // ANDROID_IMEDIALOGSERVICE_H
diff --git a/include/media/IMediaLogService.h b/include/media/IMediaLogService.h
new file mode 120000
index 0000000..245a29d
--- /dev/null
+++ b/include/media/IMediaLogService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaLogService.h
\ No newline at end of file
diff --git a/include/media/IMediaMetadataRetriever.h b/include/media/IMediaMetadataRetriever.h
new file mode 120000
index 0000000..959df1a
--- /dev/null
+++ b/include/media/IMediaMetadataRetriever.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaMetadataRetriever.h
\ No newline at end of file
diff --git a/include/media/IMediaPlayer.h b/include/media/IMediaPlayer.h
deleted file mode 100644
index 0fd8933..0000000
--- a/include/media/IMediaPlayer.h
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IMEDIAPLAYER_H
-#define ANDROID_IMEDIAPLAYER_H
-
-#include <utils/RefBase.h>
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-#include <utils/KeyedVector.h>
-#include <system/audio.h>
-
-// Fwd decl to make sure everyone agrees that the scope of struct sockaddr_in is
-// global, and not in android::
-struct sockaddr_in;
-
-namespace android {
-
-class Parcel;
-class Surface;
-class IDataSource;
-struct IStreamSource;
-class IGraphicBufferProducer;
-struct IMediaHTTPService;
-struct AudioPlaybackRate;
-struct AVSyncSettings;
-
-class IMediaPlayer: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(MediaPlayer);
-
-    virtual void            disconnect() = 0;
-
-    virtual status_t        setDataSource(
-            const sp<IMediaHTTPService> &httpService,
-            const char *url,
-            const KeyedVector<String8, String8>* headers) = 0;
-
-    virtual status_t        setDataSource(int fd, int64_t offset, int64_t length) = 0;
-    virtual status_t        setDataSource(const sp<IStreamSource>& source) = 0;
-    virtual status_t        setDataSource(const sp<IDataSource>& source) = 0;
-    virtual status_t        setVideoSurfaceTexture(
-                                    const sp<IGraphicBufferProducer>& bufferProducer) = 0;
-    virtual status_t        prepareAsync() = 0;
-    virtual status_t        start() = 0;
-    virtual status_t        stop() = 0;
-    virtual status_t        pause() = 0;
-    virtual status_t        isPlaying(bool* state) = 0;
-    virtual status_t        setPlaybackSettings(const AudioPlaybackRate& rate) = 0;
-    virtual status_t        getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) = 0;
-    virtual status_t        setSyncSettings(const AVSyncSettings& sync, float videoFpsHint) = 0;
-    virtual status_t        getSyncSettings(AVSyncSettings* sync /* nonnull */,
-                                            float* videoFps /* nonnull */) = 0;
-    virtual status_t        seekTo(int msec) = 0;
-    virtual status_t        getCurrentPosition(int* msec) = 0;
-    virtual status_t        getDuration(int* msec) = 0;
-    virtual status_t        reset() = 0;
-    virtual status_t        setAudioStreamType(audio_stream_type_t type) = 0;
-    virtual status_t        setLooping(int loop) = 0;
-    virtual status_t        setVolume(float leftVolume, float rightVolume) = 0;
-    virtual status_t        setAuxEffectSendLevel(float level) = 0;
-    virtual status_t        attachAuxEffect(int effectId) = 0;
-    virtual status_t        setParameter(int key, const Parcel& request) = 0;
-    virtual status_t        getParameter(int key, Parcel* reply) = 0;
-    virtual status_t        setRetransmitEndpoint(const struct sockaddr_in* endpoint) = 0;
-    virtual status_t        getRetransmitEndpoint(struct sockaddr_in* endpoint) = 0;
-    virtual status_t        setNextPlayer(const sp<IMediaPlayer>& next) = 0;
-
-    // Invoke a generic method on the player by using opaque parcels
-    // for the request and reply.
-    // @param request Parcel that must start with the media player
-    // interface token.
-    // @param[out] reply Parcel to hold the reply data. Cannot be null.
-    // @return OK if the invocation was made successfully.
-    virtual status_t        invoke(const Parcel& request, Parcel *reply) = 0;
-
-    // Set a new metadata filter.
-    // @param filter A set of allow and drop rules serialized in a Parcel.
-    // @return OK if the invocation was made successfully.
-    virtual status_t        setMetadataFilter(const Parcel& filter) = 0;
-
-    // Retrieve a set of metadata.
-    // @param update_only Include only the metadata that have changed
-    //                    since the last invocation of getMetadata.
-    //                    The set is built using the unfiltered
-    //                    notifications the native player sent to the
-    //                    MediaPlayerService during that period of
-    //                    time. If false, all the metadatas are considered.
-    // @param apply_filter If true, once the metadata set has been built based
-    //                     on the value update_only, the current filter is
-    //                     applied.
-    // @param[out] metadata On exit contains a set (possibly empty) of metadata.
-    //                      Valid only if the call returned OK.
-    // @return OK if the invocation was made successfully.
-    virtual status_t        getMetadata(bool update_only,
-                                        bool apply_filter,
-                                        Parcel *metadata) = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnMediaPlayer: public BnInterface<IMediaPlayer>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-}; // namespace android
-
-#endif // ANDROID_IMEDIAPLAYER_H
diff --git a/include/media/IMediaPlayer.h b/include/media/IMediaPlayer.h
new file mode 120000
index 0000000..9414d37
--- /dev/null
+++ b/include/media/IMediaPlayer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaPlayer.h
\ No newline at end of file
diff --git a/include/media/IMediaPlayerClient.h b/include/media/IMediaPlayerClient.h
new file mode 120000
index 0000000..b6547ce
--- /dev/null
+++ b/include/media/IMediaPlayerClient.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaPlayerClient.h
\ No newline at end of file
diff --git a/include/media/IMediaPlayerService.h b/include/media/IMediaPlayerService.h
deleted file mode 100644
index 8266b0b..0000000
--- a/include/media/IMediaPlayerService.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IMEDIAPLAYERSERVICE_H
-#define ANDROID_IMEDIAPLAYERSERVICE_H
-
-#include <utils/Errors.h>  // for status_t
-#include <utils/KeyedVector.h>
-#include <utils/RefBase.h>
-#include <utils/String8.h>
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-#include <system/audio.h>
-
-#include <media/IMediaPlayerClient.h>
-#include <media/IMediaPlayer.h>
-#include <media/IMediaMetadataRetriever.h>
-
-namespace android {
-
-struct IHDCP;
-struct IMediaCodecList;
-struct IMediaHTTPService;
-class IMediaRecorder;
-class IOMX;
-class IRemoteDisplay;
-class IRemoteDisplayClient;
-struct IStreamSource;
-
-class IMediaPlayerService: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(MediaPlayerService);
-
-    virtual sp<IMediaRecorder> createMediaRecorder(const String16 &opPackageName) = 0;
-    virtual sp<IMediaMetadataRetriever> createMetadataRetriever() = 0;
-    virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client,
-            audio_session_t audioSessionId = AUDIO_SESSION_ALLOCATE) = 0;
-    virtual sp<IOMX>            getOMX() = 0;
-    virtual sp<IHDCP>           makeHDCP(bool createEncryptionModule) = 0;
-    virtual sp<IMediaCodecList> getCodecList() const = 0;
-
-    // Connects to a remote display.
-    // 'iface' specifies the address of the local interface on which to listen for
-    // a connection from the remote display as an ip address and port number
-    // of the form "x.x.x.x:y".  The media server should call back into the provided remote
-    // display client when display connection, disconnection or errors occur.
-    // The assumption is that at most one remote display will be connected to the
-    // provided interface at a time.
-    virtual sp<IRemoteDisplay> listenForRemoteDisplay(const String16 &opPackageName,
-            const sp<IRemoteDisplayClient>& client, const String8& iface) = 0;
-
-    // codecs and audio devices usage tracking for the battery app
-    enum BatteryDataBits {
-        // tracking audio codec
-        kBatteryDataTrackAudio          = 0x1,
-        // tracking video codec
-        kBatteryDataTrackVideo          = 0x2,
-        // codec is started, otherwise codec is paused
-        kBatteryDataCodecStarted        = 0x4,
-        // tracking decoder (for media player),
-        // otherwise tracking encoder (for media recorder)
-        kBatteryDataTrackDecoder        = 0x8,
-        // start to play an audio on an audio device
-        kBatteryDataAudioFlingerStart   = 0x10,
-        // stop/pause the audio playback
-        kBatteryDataAudioFlingerStop    = 0x20,
-        // audio is rounted to speaker
-        kBatteryDataSpeakerOn           = 0x40,
-        // audio is rounted to devices other than speaker
-        kBatteryDataOtherAudioDeviceOn  = 0x80,
-    };
-
-    virtual void addBatteryData(uint32_t params) = 0;
-    virtual status_t pullBatteryData(Parcel* reply) = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnMediaPlayerService: public BnInterface<IMediaPlayerService>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-}; // namespace android
-
-#endif // ANDROID_IMEDIAPLAYERSERVICE_H
diff --git a/include/media/IMediaPlayerService.h b/include/media/IMediaPlayerService.h
new file mode 120000
index 0000000..89c96cd
--- /dev/null
+++ b/include/media/IMediaPlayerService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaPlayerService.h
\ No newline at end of file
diff --git a/include/media/IMediaRecorder.h b/include/media/IMediaRecorder.h
deleted file mode 100644
index 68a65f0..0000000
--- a/include/media/IMediaRecorder.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- **
- ** Copyright 2008, The Android Open Source Project
- **
- ** Licensed under the Apache License, Version 2.0 (the "License");
- ** you may not use this file except in compliance with the License.
- ** You may obtain a copy of the License at
- **
- **     http://www.apache.org/licenses/LICENSE-2.0
- **
- ** Unless required by applicable law or agreed to in writing, software
- ** distributed under the License is distributed on an "AS IS" BASIS,
- ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ** See the License for the specific language governing permissions and
- ** limitations under the License.
- */
-
-#ifndef ANDROID_IMEDIARECORDER_H
-#define ANDROID_IMEDIARECORDER_H
-
-#include <binder/IInterface.h>
-
-namespace android {
-
-class Surface;
-namespace hardware {
-class ICamera;
-}
-class ICameraRecordingProxy;
-class IMediaRecorderClient;
-class IGraphicBufferConsumer;
-class IGraphicBufferProducer;
-
-class IMediaRecorder: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(MediaRecorder);
-
-    virtual status_t setCamera(const sp<hardware::ICamera>& camera,
-                               const sp<ICameraRecordingProxy>& proxy) = 0;
-    virtual status_t setPreviewSurface(const sp<IGraphicBufferProducer>& surface) = 0;
-    virtual status_t setVideoSource(int vs) = 0;
-    virtual status_t setAudioSource(int as) = 0;
-    virtual status_t setOutputFormat(int of) = 0;
-    virtual status_t setVideoEncoder(int ve) = 0;
-    virtual status_t setAudioEncoder(int ae) = 0;
-    virtual status_t setOutputFile(int fd, int64_t offset, int64_t length) = 0;
-    virtual status_t setVideoSize(int width, int height) = 0;
-    virtual status_t setVideoFrameRate(int frames_per_second) = 0;
-    virtual status_t setParameters(const String8& params) = 0;
-    virtual status_t setListener(const sp<IMediaRecorderClient>& listener) = 0;
-    virtual status_t setClientName(const String16& clientName) = 0;
-    virtual status_t prepare() = 0;
-    virtual status_t getMaxAmplitude(int* max) = 0;
-    virtual status_t start() = 0;
-    virtual status_t stop() = 0;
-    virtual status_t reset() = 0;
-    virtual status_t pause() = 0;
-    virtual status_t resume() = 0;
-    virtual status_t init() = 0;
-    virtual status_t close() = 0;
-    virtual status_t release() = 0;
-    virtual status_t setInputSurface(const sp<IGraphicBufferConsumer>& surface) = 0;
-    virtual sp<IGraphicBufferProducer> querySurfaceMediaSource() = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnMediaRecorder: public BnInterface<IMediaRecorder>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-}; // namespace android
-
-#endif // ANDROID_IMEDIARECORDER_H
diff --git a/include/media/IMediaRecorder.h b/include/media/IMediaRecorder.h
new file mode 120000
index 0000000..57d192c
--- /dev/null
+++ b/include/media/IMediaRecorder.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaRecorder.h
\ No newline at end of file
diff --git a/include/media/IMediaRecorderClient.h b/include/media/IMediaRecorderClient.h
new file mode 120000
index 0000000..89f4359
--- /dev/null
+++ b/include/media/IMediaRecorderClient.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaRecorderClient.h
\ No newline at end of file
diff --git a/include/media/IMediaSource.h b/include/media/IMediaSource.h
deleted file mode 100644
index 2ff42ec..0000000
--- a/include/media/IMediaSource.h
+++ /dev/null
@@ -1,267 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef IMEDIA_SOURCE_BASE_H_
-
-#define IMEDIA_SOURCE_BASE_H_
-
-#include <map>
-
-#include <binder/IInterface.h>
-#include <binder/IMemory.h>
-#include <media/stagefright/MediaBuffer.h>
-#include <media/stagefright/MediaErrors.h>
-
-namespace android {
-
-struct MediaSource;
-class MetaData;
-class MediaBufferGroup;
-
-class IMediaSource : public IInterface {
-public:
-    DECLARE_META_INTERFACE(MediaSource);
-
-    enum {
-        // Maximum number of buffers would be read in readMultiple.
-        kMaxNumReadMultiple = 128,
-    };
-
-    // To be called before any other methods on this object, except
-    // getFormat().
-    virtual status_t start(MetaData *params = NULL) = 0;
-
-    // Any blocking read call returns immediately with a result of NO_INIT.
-    // It is an error to call any methods other than start after this call
-    // returns. Any buffers the object may be holding onto at the time of
-    // the stop() call are released.
-    // Also, it is imperative that any buffers output by this object and
-    // held onto by callers be released before a call to stop() !!!
-    virtual status_t stop() = 0;
-
-    // Returns the format of the data output by this media source.
-    virtual sp<MetaData> getFormat() = 0;
-
-    // Options that modify read() behaviour. The default is to
-    // a) not request a seek
-    // b) not be late, i.e. lateness_us = 0
-    struct ReadOptions {
-        enum SeekMode : int32_t {
-            SEEK_PREVIOUS_SYNC,
-            SEEK_NEXT_SYNC,
-            SEEK_CLOSEST_SYNC,
-            SEEK_CLOSEST,
-        };
-
-        ReadOptions();
-
-        // Reset everything back to defaults.
-        void reset();
-
-        void setSeekTo(int64_t time_us, SeekMode mode = SEEK_CLOSEST_SYNC);
-        void clearSeekTo();
-        bool getSeekTo(int64_t *time_us, SeekMode *mode) const;
-
-        // TODO: remove this if unused.
-        void setLateBy(int64_t lateness_us);
-        int64_t getLateBy() const;
-
-        void setNonBlocking();
-        void clearNonBlocking();
-        bool getNonBlocking() const;
-
-        // Used to clear all non-persistent options for multiple buffer reads.
-        void clearNonPersistent() {
-            clearSeekTo();
-        }
-
-    private:
-        enum Options {
-            kSeekTo_Option      = 1,
-        };
-
-        uint32_t mOptions;
-        int64_t mSeekTimeUs;
-        SeekMode mSeekMode;
-        int64_t mLatenessUs;
-        bool mNonBlocking;
-    };
-
-    // Returns a new buffer of data. Call blocks until a
-    // buffer is available, an error is encountered or the end of the stream
-    // is reached.
-    // End of stream is signalled by a result of ERROR_END_OF_STREAM.
-    // A result of INFO_FORMAT_CHANGED indicates that the format of this
-    // MediaSource has changed mid-stream, the client can continue reading
-    // but should be prepared for buffers of the new configuration.
-    //
-    // TODO: consider removing read() in favor of readMultiple().
-    virtual status_t read(
-            MediaBuffer **buffer, const ReadOptions *options = NULL) = 0;
-
-    // Returns a vector of new buffers of data, where the new buffers are added
-    // to the end of the vector.
-    // Call blocks until an error is encountered, or the end of the stream is
-    // reached, or format change is hit, or |kMaxNumReadMultiple| buffers have
-    // been read.
-    // End of stream is signaled by a result of ERROR_END_OF_STREAM.
-    // A result of INFO_FORMAT_CHANGED indicates that the format of this
-    // MediaSource has changed mid-stream, the client can continue reading
-    // but should be prepared for buffers of the new configuration.
-    //
-    // ReadOptions may be specified. Persistent options apply to all reads;
-    // non-persistent options (e.g. seek) apply only to the first read.
-    virtual status_t readMultiple(
-            Vector<MediaBuffer *> *buffers, uint32_t maxNumBuffers = 1,
-            const ReadOptions *options = nullptr) = 0;
-
-    // Returns true if |readMultiple| is supported, otherwise false.
-    virtual bool supportReadMultiple() = 0;
-
-    // Returns true if |read| supports nonblocking option, otherwise false.
-    // |readMultiple| if supported, always allows the nonblocking option.
-    virtual bool supportNonblockingRead() = 0;
-
-    // Causes this source to suspend pulling data from its upstream source
-    // until a subsequent read-with-seek. Currently only supported by
-    // OMXCodec.
-    virtual status_t pause()  = 0;
-
-    // The consumer of this media source requests that the given buffers
-    // are to be returned exclusively in response to read calls.
-    // This will be called after a successful start() and before the
-    // first read() call.
-    // Callee assumes ownership of the buffers if no error is returned.
-    virtual status_t setBuffers(const Vector<MediaBuffer *> & /* buffers */) = 0;
-
-};
-
-class BnMediaSource: public BnInterface<IMediaSource>
-{
-public:
-    BnMediaSource();
-
-    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
-                                uint32_t flags = 0);
-
-    virtual status_t pause() {
-        return ERROR_UNSUPPORTED;
-    }
-
-    virtual status_t setBuffers(const Vector<MediaBuffer *> & /* buffers */) {
-        return ERROR_UNSUPPORTED;
-    }
-
-    // TODO: Implement this for local media sources.
-    virtual status_t readMultiple(
-            Vector<MediaBuffer *> * /* buffers */, uint32_t /* maxNumBuffers = 1 */,
-            const ReadOptions * /* options = nullptr */) {
-        return ERROR_UNSUPPORTED;
-    }
-
-    virtual bool supportReadMultiple() {
-        return false;
-    }
-
-    // Override in source if nonblocking reads are supported.
-    virtual bool supportNonblockingRead() {
-        return false;
-    }
-
-    static const size_t kBinderMediaBuffers = 4; // buffers managed by BnMediaSource
-    static const size_t kTransferSharedAsSharedThreshold = 4 * 1024;  // if >= shared, else inline
-    static const size_t kTransferInlineAsSharedThreshold = 64 * 1024; // if >= shared, else inline
-    static const size_t kInlineMaxTransfer = 256 * 1024; // Binder size limited to BINDER_VM_SIZE.
-
-protected:
-    virtual ~BnMediaSource();
-
-private:
-    uint32_t mBuffersSinceStop; // Buffer tracking variable
-
-    std::unique_ptr<MediaBufferGroup> mGroup;
-
-    // To prevent marshalling IMemory with each read transaction, we cache the IMemory pointer
-    // into a map.
-    //
-    // This is converted into an index, which is used to identify the associated memory
-    // on the receiving side.  We hold a reference to the IMemory here to ensure it doesn't
-    // change underneath us.
-
-    struct IndexCache {
-        IndexCache() : mIndex(0) { }
-
-        // Returns the index of the IMemory stored in cache or 0 if not found.
-        uint64_t lookup(const sp<IMemory> &mem) {
-            auto p = mMemoryToIndex.find(mem.get());
-            if (p == mMemoryToIndex.end()) {
-                return 0;
-            }
-            if (MediaBuffer::isDeadObject(p->second.first)) {
-                // this object's dead
-                ALOGW("Attempting to lookup a dead IMemory");
-                (void)mMemoryToIndex.erase(p);
-                return 0;
-            }
-            ALOGW_IF(p->second.first.get() != mem.get(), "Mismatched buffers without reset");
-            return p->second.second;
-        }
-
-        // Returns the index of the IMemory stored in the index cache.
-        uint64_t insert(const sp<IMemory> &mem) {
-            auto p = mMemoryToIndex.find(mem.get());
-            if (p == mMemoryToIndex.end()) {
-                if (mIndex == UINT64_MAX) {
-                    ALOGE("Index overflow");
-                    mIndex = 1; // skip overflow condition and hope for the best
-                } else {
-                    ++mIndex;
-                }
-                (void)mMemoryToIndex.emplace(// C++11 mem.get(), std::make_pair(mem, mIndex))
-                        std::piecewise_construct,
-                        std::forward_as_tuple(mem.get()), std::forward_as_tuple(mem, mIndex));
-                return mIndex;
-            }
-            ALOGW("IMemory already inserted into cache");
-            return p->second.second;
-        }
-
-        void reset() {
-            mMemoryToIndex.clear();
-            mIndex = 0;
-        }
-
-        void gc() {
-            for (auto it = mMemoryToIndex.begin(); it != mMemoryToIndex.end(); ) {
-                if (MediaBuffer::isDeadObject(it->second.first)) {
-                    it = mMemoryToIndex.erase(it);
-                } else {
-                    ++it;
-                }
-            }
-        }
-
-    private:
-        uint64_t mIndex;
-        // C++14 unordered_map erase on iterator is stable; C++11 has no guarantee.
-        // Could key on uintptr_t instead of IMemory *
-        std::map<IMemory *, std::pair<sp<IMemory>, uint64_t>> mMemoryToIndex;
-    } mIndexCache;
-};
-
-}  // namespace android
-
-#endif  // IMEDIA_SOURCE_BASE_H_
diff --git a/include/media/IMediaSource.h b/include/media/IMediaSource.h
new file mode 120000
index 0000000..1330ad3
--- /dev/null
+++ b/include/media/IMediaSource.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IMediaSource.h
\ No newline at end of file
diff --git a/include/media/IOMX.h b/include/media/IOMX.h
deleted file mode 100644
index 1c39b9c..0000000
--- a/include/media/IOMX.h
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IOMX_H_
-
-#define ANDROID_IOMX_H_
-
-#include <binder/IInterface.h>
-#include <gui/IGraphicBufferProducer.h>
-#include <gui/IGraphicBufferConsumer.h>
-#include <ui/GraphicBuffer.h>
-#include <utils/List.h>
-#include <utils/String8.h>
-
-#include <list>
-
-#include <media/hardware/MetadataBufferType.h>
-
-#include <OMX_Core.h>
-#include <OMX_Video.h>
-
-namespace android {
-
-class IMemory;
-class IOMXObserver;
-class IOMXRenderer;
-class NativeHandle;
-class Surface;
-
-class IOMX : public IInterface {
-public:
-    DECLARE_META_INTERFACE(OMX);
-
-    typedef uint32_t buffer_id;
-    typedef uint32_t node_id;
-
-    // Given a node_id and the calling process' pid, returns true iff
-    // the implementation of the OMX interface lives in the same
-    // process.
-    virtual bool livesLocally(node_id node, pid_t pid) = 0;
-
-    struct ComponentInfo {
-        String8 mName;
-        List<String8> mRoles;
-    };
-    virtual status_t listNodes(List<ComponentInfo> *list) = 0;
-
-    virtual status_t allocateNode(
-            const char *name, const sp<IOMXObserver> &observer,
-            sp<IBinder> *nodeBinder,
-            node_id *node) = 0;
-
-    virtual status_t freeNode(node_id node) = 0;
-
-    virtual status_t sendCommand(
-            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) = 0;
-
-    virtual status_t getParameter(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size) = 0;
-
-    virtual status_t setParameter(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size) = 0;
-
-    virtual status_t getConfig(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size) = 0;
-
-    virtual status_t setConfig(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size) = 0;
-
-    virtual status_t getState(
-            node_id node, OMX_STATETYPE* state) = 0;
-
-    // This will set *type to previous metadata buffer type on OMX error (not on binder error), and
-    // new metadata buffer type on success.
-    virtual status_t storeMetaDataInBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type = NULL) = 0;
-
-    virtual status_t prepareForAdaptivePlayback(
-            node_id node, OMX_U32 portIndex, OMX_BOOL enable,
-            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) = 0;
-
-    virtual status_t configureVideoTunnelMode(
-            node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
-            OMX_U32 audioHwSync, native_handle_t **sidebandHandle) = 0;
-
-    virtual status_t enableNativeBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable) = 0;
-
-    virtual status_t getGraphicBufferUsage(
-            node_id node, OMX_U32 port_index, OMX_U32* usage) = 0;
-
-    // Use |params| as an OMX buffer, but limit the size of the OMX buffer to |allottedSize|.
-    virtual status_t useBuffer(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize) = 0;
-
-    virtual status_t useGraphicBuffer(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) = 0;
-
-    virtual status_t updateGraphicBufferInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) = 0;
-
-    virtual status_t updateNativeHandleInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<NativeHandle> &nativeHandle, buffer_id buffer) = 0;
-
-    // This will set *type to resulting metadata buffer type on OMX error (not on binder error) as
-    // well as on success.
-    virtual status_t createInputSurface(
-            node_id node, OMX_U32 port_index, android_dataspace dataSpace,
-            sp<IGraphicBufferProducer> *bufferProducer,
-            MetadataBufferType *type = NULL) = 0;
-
-    virtual status_t createPersistentInputSurface(
-            sp<IGraphicBufferProducer> *bufferProducer,
-            sp<IGraphicBufferConsumer> *bufferConsumer) = 0;
-
-    // This will set *type to resulting metadata buffer type on OMX error (not on binder error) as
-    // well as on success.
-    virtual status_t setInputSurface(
-            node_id node, OMX_U32 port_index,
-            const sp<IGraphicBufferConsumer> &bufferConsumer,
-            MetadataBufferType *type) = 0;
-
-    virtual status_t signalEndOfInputStream(node_id node) = 0;
-
-    // Allocate an opaque buffer as a native handle. If component supports returning native
-    // handles, those are returned in *native_handle. Otherwise, the allocated buffer is
-    // returned in *buffer_data. This clearly only makes sense if the caller lives in the
-    // same process as the callee, i.e. is the media_server, as the returned "buffer_data"
-    // pointer is just that, a pointer into local address space.
-    virtual status_t allocateSecureBuffer(
-            node_id node, OMX_U32 port_index, size_t size,
-            buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle) = 0;
-
-    // Allocate an OMX buffer of size |allotedSize|. Use |params| as the backup buffer, which
-    // may be larger.
-    virtual status_t allocateBufferWithBackup(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize) = 0;
-
-    virtual status_t freeBuffer(
-            node_id node, OMX_U32 port_index, buffer_id buffer) = 0;
-
-    enum {
-        kFenceTimeoutMs = 1000
-    };
-    // Calls OMX_FillBuffer on buffer, and passes |fenceFd| to component if it supports
-    // fences. Otherwise, it waits on |fenceFd| before calling OMX_FillBuffer.
-    // Takes ownership of |fenceFd| even if this call fails.
-    virtual status_t fillBuffer(node_id node, buffer_id buffer, int fenceFd = -1) = 0;
-
-    // Calls OMX_EmptyBuffer on buffer (after updating buffer header with |range_offset|,
-    // |range_length|, |flags| and |timestamp|). Passes |fenceFd| to component if it
-    // supports fences. Otherwise, it waits on |fenceFd| before calling OMX_EmptyBuffer.
-    // Takes ownership of |fenceFd| even if this call fails.
-    virtual status_t emptyBuffer(
-            node_id node,
-            buffer_id buffer,
-            OMX_U32 range_offset, OMX_U32 range_length,
-            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1) = 0;
-
-    virtual status_t getExtensionIndex(
-            node_id node,
-            const char *parameter_name,
-            OMX_INDEXTYPE *index) = 0;
-
-    enum InternalOptionType {
-        INTERNAL_OPTION_SUSPEND,  // data is a bool
-        INTERNAL_OPTION_REPEAT_PREVIOUS_FRAME_DELAY,  // data is an int64_t
-        INTERNAL_OPTION_MAX_TIMESTAMP_GAP, // data is int64_t
-        INTERNAL_OPTION_MAX_FPS, // data is float
-        INTERNAL_OPTION_START_TIME, // data is an int64_t
-        INTERNAL_OPTION_TIME_LAPSE, // data is an int64_t[2]
-        INTERNAL_OPTION_COLOR_ASPECTS, // data is ColorAspects
-        INTERNAL_OPTION_TIME_OFFSET, // data is an int64_t
-    };
-    virtual status_t setInternalOption(
-            node_id node,
-            OMX_U32 port_index,
-            InternalOptionType type,
-            const void *data,
-            size_t size) = 0;
-};
-
-struct omx_message {
-    enum {
-        EVENT,
-        EMPTY_BUFFER_DONE,
-        FILL_BUFFER_DONE,
-        FRAME_RENDERED,
-    } type;
-
-    IOMX::node_id node;
-    int fenceFd; // used for EMPTY_BUFFER_DONE and FILL_BUFFER_DONE; client must close this
-
-    union {
-        // if type == EVENT
-        struct {
-            OMX_EVENTTYPE event;
-            OMX_U32 data1;
-            OMX_U32 data2;
-        } event_data;
-
-        // if type == EMPTY_BUFFER_DONE
-        struct {
-            IOMX::buffer_id buffer;
-        } buffer_data;
-
-        // if type == FILL_BUFFER_DONE
-        struct {
-            IOMX::buffer_id buffer;
-            OMX_U32 range_offset;
-            OMX_U32 range_length;
-            OMX_U32 flags;
-            OMX_TICKS timestamp;
-        } extended_buffer_data;
-
-        // if type == FRAME_RENDERED
-        struct {
-            OMX_TICKS timestamp;
-            OMX_S64 nanoTime;
-        } render_data;
-    } u;
-};
-
-class IOMXObserver : public IInterface {
-public:
-    DECLARE_META_INTERFACE(OMXObserver);
-
-    // Handle (list of) messages.
-    virtual void onMessages(const std::list<omx_message> &messages) = 0;
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-class BnOMX : public BnInterface<IOMX> {
-public:
-    virtual status_t onTransact(
-            uint32_t code, const Parcel &data, Parcel *reply,
-            uint32_t flags = 0);
-
-protected:
-    // check if the codec is secure.
-    virtual bool isSecure(IOMX::node_id node) {
-        return false;
-    }
-};
-
-class BnOMXObserver : public BnInterface<IOMXObserver> {
-public:
-    virtual status_t onTransact(
-            uint32_t code, const Parcel &data, Parcel *reply,
-            uint32_t flags = 0);
-};
-
-struct CodecProfileLevel {
-    OMX_U32 mProfile;
-    OMX_U32 mLevel;
-};
-
-inline static const char *asString(MetadataBufferType i, const char *def = "??") {
-    using namespace android;
-    switch (i) {
-        case kMetadataBufferTypeCameraSource:   return "CameraSource";
-        case kMetadataBufferTypeGrallocSource:  return "GrallocSource";
-        case kMetadataBufferTypeANWBuffer:      return "ANWBuffer";
-        case kMetadataBufferTypeNativeHandleSource: return "NativeHandleSource";
-        case kMetadataBufferTypeInvalid:        return "Invalid";
-        default:                                return def;
-    }
-}
-
-}  // namespace android
-
-#endif  // ANDROID_IOMX_H_
diff --git a/include/media/IOMX.h b/include/media/IOMX.h
new file mode 120000
index 0000000..6d5b375
--- /dev/null
+++ b/include/media/IOMX.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IOMX.h
\ No newline at end of file
diff --git a/include/media/IRemoteDisplay.h b/include/media/IRemoteDisplay.h
new file mode 120000
index 0000000..4b0cf10
--- /dev/null
+++ b/include/media/IRemoteDisplay.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IRemoteDisplay.h
\ No newline at end of file
diff --git a/include/media/IRemoteDisplayClient.h b/include/media/IRemoteDisplayClient.h
new file mode 120000
index 0000000..f29a2ee
--- /dev/null
+++ b/include/media/IRemoteDisplayClient.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IRemoteDisplayClient.h
\ No newline at end of file
diff --git a/include/media/IResourceManagerClient.h b/include/media/IResourceManagerClient.h
new file mode 120000
index 0000000..100af9b
--- /dev/null
+++ b/include/media/IResourceManagerClient.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IResourceManagerClient.h
\ No newline at end of file
diff --git a/include/media/IResourceManagerService.h b/include/media/IResourceManagerService.h
new file mode 120000
index 0000000..9b389c6
--- /dev/null
+++ b/include/media/IResourceManagerService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IResourceManagerService.h
\ No newline at end of file
diff --git a/include/media/IStreamSource.h b/include/media/IStreamSource.h
new file mode 120000
index 0000000..4943af9
--- /dev/null
+++ b/include/media/IStreamSource.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/IStreamSource.h
\ No newline at end of file
diff --git a/include/media/Interpolator.h b/include/media/Interpolator.h
new file mode 100644
index 0000000..45a0585
--- /dev/null
+++ b/include/media/Interpolator.h
@@ -0,0 +1,342 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INTERPOLATOR_H
+#define ANDROID_INTERPOLATOR_H
+
+#include <map>
+#include <sstream>
+#include <unordered_map>
+
+#include <binder/Parcel.h>
+#include <utils/RefBase.h>
+
+#pragma push_macro("LOG_TAG")
+#undef LOG_TAG
+#define LOG_TAG "Interpolator"
+
+namespace android {
+
+/*
+ * A general purpose spline interpolator class which takes a set of points
+ * and performs interpolation.  This is used for the VolumeShaper class.
+ */
+
+template <typename S, typename T>
+class Interpolator : public std::map<S, T> {
+public:
+    // Polynomial spline interpolators
+    // Extend only at the end of enum, as this must match order in VolumeShapers.java.
+    enum InterpolatorType : int32_t {
+        INTERPOLATOR_TYPE_STEP,   // Not continuous
+        INTERPOLATOR_TYPE_LINEAR, // C0
+        INTERPOLATOR_TYPE_CUBIC,  // C1
+        INTERPOLATOR_TYPE_CUBIC_MONOTONIC, // C1 (to provide locally monotonic curves)
+        // INTERPOLATOR_TYPE_CUBIC_C2, // TODO - requires global computation / cache
+    };
+
+    explicit Interpolator(
+            InterpolatorType interpolatorType = INTERPOLATOR_TYPE_LINEAR,
+            bool cache = true)
+        : mCache(cache)
+        , mFirstSlope(0)
+        , mLastSlope(0) {
+        setInterpolatorType(interpolatorType);
+    }
+
+    std::pair<S, T> first() const {
+        return *this->begin();
+    }
+
+    std::pair<S, T> last() const {
+        return *this->rbegin();
+    }
+
+    // find the corresponding Y point from a X point.
+    T findY(S x) { // logically const, but modifies cache
+        auto high = this->lower_bound(x);
+        // greater than last point
+        if (high == this->end()) {
+            return this->rbegin()->second;
+        }
+        // at or before first point
+        if (high == this->begin()) {
+            return high->second;
+        }
+        // go lower.
+        auto low = high;
+        --low;
+
+        // now that we have two adjacent points:
+        switch (mInterpolatorType) {
+        case INTERPOLATOR_TYPE_STEP:
+            return high->first == x ? high->second : low->second;
+        case INTERPOLATOR_TYPE_LINEAR:
+            return ((high->first - x) * low->second + (x - low->first) * high->second)
+                    / (high->first - low->first);
+        case INTERPOLATOR_TYPE_CUBIC:
+        case INTERPOLATOR_TYPE_CUBIC_MONOTONIC:
+        default: {
+            // See https://en.wikipedia.org/wiki/Cubic_Hermite_spline
+
+            const S interval =  high->first - low->first;
+
+            // check to see if we've cached the polynomial coefficients
+            if (mMemo.count(low->first) != 0) {
+                const S t = (x - low->first) / interval;
+                const S t2 = t * t;
+                const auto &memo = mMemo[low->first];
+                return low->second + std::get<0>(memo) * t
+                        + (std::get<1>(memo) + std::get<2>(memo) * t) * t2;
+            }
+
+            // find the neighboring points (low2 < low < high < high2)
+            auto low2 = this->end();
+            if (low != this->begin()) {
+                low2 = low;
+                --low2; // decrementing this->begin() is undefined
+            }
+            auto high2 = high;
+            ++high2;
+
+            // you could have catmullRom with monotonic or
+            // non catmullRom (finite difference) with regular cubic;
+            // the choices here minimize computation.
+            bool monotonic, catmullRom;
+            if (mInterpolatorType == INTERPOLATOR_TYPE_CUBIC_MONOTONIC) {
+                monotonic = true;
+                catmullRom = false;
+            } else {
+                monotonic = false;
+                catmullRom = true;
+            }
+
+            // secants are only needed for finite difference splines or
+            // monotonic computation.
+            // we use lazy computation here - if we precompute in
+            // a single pass, duplicate secant computations may be avoided.
+            S sec, sec0, sec1;
+            if (!catmullRom || monotonic) {
+                sec = (high->second - low->second) / interval;
+                sec0 = low2 != this->end()
+                        ? (low->second - low2->second) / (low->first - low2->first)
+                        : mFirstSlope;
+                sec1 = high2 != this->end()
+                        ? (high2->second - high->second) / (high2->first - high->first)
+                        : mLastSlope;
+            }
+
+            // compute the tangent slopes at the control points
+            S m0, m1;
+            if (catmullRom) {
+                // Catmull-Rom spline
+                m0 = low2 != this->end()
+                        ? (high->second - low2->second) / (high->first - low2->first)
+                        : mFirstSlope;
+
+                m1 = high2 != this->end()
+                        ? (high2->second - low->second) / (high2->first - low->first)
+                        : mLastSlope;
+            } else {
+                // finite difference spline
+                m0 = (sec0 + sec) * 0.5f;
+                m1 = (sec1 + sec) * 0.5f;
+            }
+
+            if (monotonic) {
+                // https://en.wikipedia.org/wiki/Monotone_cubic_interpolation
+                // A sufficient condition for Fritsch–Carlson monotonicity is constraining
+                // (1) the normalized slopes to be within the circle of radius 3, or
+                // (2) the normalized slopes to be within the square of radius 3.
+                // Condition (2) is more generous and easier to compute.
+                const S maxSlope = 3 * sec;
+                m0 = constrainSlope(m0, maxSlope);
+                m1 = constrainSlope(m1, maxSlope);
+
+                m0 = constrainSlope(m0, 3 * sec0);
+                m1 = constrainSlope(m1, 3 * sec1);
+            }
+
+            const S t = (x - low->first) / interval;
+            const S t2 = t * t;
+            if (mCache) {
+                // convert to cubic polynomial coefficients and compute
+                m0 *= interval;
+                m1 *= interval;
+                const T dy = high->second - low->second;
+                const S c0 = low->second;
+                const S c1 = m0;
+                const S c2 = 3 * dy - 2 * m0 - m1;
+                const S c3 = m0 + m1 - 2 * dy;
+                mMemo[low->first] = std::make_tuple(c1, c2, c3);
+                return c0 + c1 * t + (c2 + c3 * t) * t2;
+            } else {
+                // classic Hermite interpolation
+                const S t3 = t2 * t;
+                const S h00 =  2 * t3 - 3 * t2     + 1;
+                const S h10 =      t3 - 2 * t2 + t    ;
+                const S h01 = -2 * t3 + 3 * t2        ;
+                const S h11 =      t3     - t2        ;
+                return h00 * low->second + (h10 * m0 + h11 * m1) * interval + h01 * high->second;
+            }
+        } // default
+        }
+    }
+
+    InterpolatorType getInterpolatorType() const {
+        return mInterpolatorType;
+    }
+
+    status_t setInterpolatorType(InterpolatorType interpolatorType) {
+        switch (interpolatorType) {
+        case INTERPOLATOR_TYPE_STEP:   // Not continuous
+        case INTERPOLATOR_TYPE_LINEAR: // C0
+        case INTERPOLATOR_TYPE_CUBIC:  // C1
+        case INTERPOLATOR_TYPE_CUBIC_MONOTONIC: // C1 + other constraints
+        // case INTERPOLATOR_TYPE_CUBIC_C2:
+            mInterpolatorType = interpolatorType;
+            return NO_ERROR;
+        default:
+            ALOGE("invalid interpolatorType: %d", interpolatorType);
+            return BAD_VALUE;
+        }
+    }
+
+    T getFirstSlope() const {
+        return mFirstSlope;
+    }
+
+    void setFirstSlope(T slope) {
+        mFirstSlope = slope;
+    }
+
+    T getLastSlope() const {
+        return mLastSlope;
+    }
+
+    void setLastSlope(T slope) {
+        mLastSlope = slope;
+    }
+
+    void clearCache() {
+        mMemo.clear();
+    }
+
+    status_t writeToParcel(Parcel *parcel) const {
+        if (parcel == nullptr) {
+            return BAD_VALUE;
+        }
+        status_t res = parcel->writeInt32(mInterpolatorType)
+                ?: parcel->writeFloat(mFirstSlope)
+                ?: parcel->writeFloat(mLastSlope)
+                ?: parcel->writeUint32((uint32_t)this->size()); // silent truncation
+        if (res != NO_ERROR) {
+            return res;
+        }
+        for (const auto &pt : *this) {
+            res = parcel->writeFloat(pt.first)
+                    ?: parcel->writeFloat(pt.second);
+            if (res != NO_ERROR) {
+                return res;
+            }
+        }
+        return NO_ERROR;
+    }
+
+    status_t readFromParcel(const Parcel &parcel) {
+        this->clear();
+        int32_t type;
+        uint32_t size;
+        status_t res = parcel.readInt32(&type)
+                        ?: parcel.readFloat(&mFirstSlope)
+                        ?: parcel.readFloat(&mLastSlope)
+                        ?: parcel.readUint32(&size)
+                        ?: setInterpolatorType((InterpolatorType)type);
+        if (res != NO_ERROR) {
+            return res;
+        }
+        // Note: We don't need to check size is within some bounds as
+        // the Parcel read will fail if size is incorrectly specified too large.
+        float lastx;
+        for (uint32_t i = 0; i < size; ++i) {
+            float x, y;
+            res = parcel.readFloat(&x)
+                    ?: parcel.readFloat(&y);
+            if (res != NO_ERROR) {
+                return res;
+            }
+            if (i > 0 && !(x > lastx) /* handle nan */
+                    || y != y /* handle nan */) {
+                // This is a std::map object which imposes sorted order
+                // automatically on emplace.
+                // Nevertheless for reading from a Parcel,
+                // we require that the points be specified monotonic in x.
+                return BAD_VALUE;
+            }
+            this->emplace(x, y);
+            lastx = x;
+        }
+        return NO_ERROR;
+    }
+
+    std::string toString() const {
+        std::stringstream ss;
+        ss << "Interpolator{mInterpolatorType=" << static_cast<int32_t>(mInterpolatorType);
+        ss << ", mFirstSlope=" << mFirstSlope;
+        ss << ", mLastSlope=" << mLastSlope;
+        ss << ", {";
+        bool first = true;
+        for (const auto &pt : *this) {
+            if (first) {
+                first = false;
+                ss << "{";
+            } else {
+                ss << ", {";
+            }
+            ss << pt.first << ", " << pt.second << "}";
+        }
+        ss << "}}";
+        return ss.str();
+    }
+
+private:
+    static S constrainSlope(S slope, S maxSlope) {
+        if (maxSlope > 0) {
+            slope = std::min(slope, maxSlope);
+            slope = std::max(slope, S(0)); // not globally monotonic
+        } else {
+            slope = std::max(slope, maxSlope);
+            slope = std::min(slope, S(0)); // not globally monotonic
+        }
+        return slope;
+    }
+
+    InterpolatorType mInterpolatorType;
+    bool mCache; // whether we cache spline coefficient computation
+
+    // for cubic interpolation, the boundary conditions in slope.
+    S mFirstSlope;
+    S mLastSlope;
+
+    // spline cubic polynomial coefficient cache
+    std::unordered_map<S, std::tuple<S /* c1 */, S /* c2 */, S /* c3 */>> mMemo;
+}; // Interpolator
+
+} // namespace android
+
+#pragma pop_macro("LOG_TAG")
+
+#endif // ANDROID_INTERPOLATOR_H
diff --git a/include/media/JetPlayer.h b/include/media/JetPlayer.h
new file mode 120000
index 0000000..5483fda
--- /dev/null
+++ b/include/media/JetPlayer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/JetPlayer.h
\ No newline at end of file
diff --git a/include/media/LinearMap.h b/include/media/LinearMap.h
new file mode 120000
index 0000000..30d4ca8
--- /dev/null
+++ b/include/media/LinearMap.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/LinearMap.h
\ No newline at end of file
diff --git a/include/media/MediaAnalyticsItem.h b/include/media/MediaAnalyticsItem.h
new file mode 120000
index 0000000..e8124e0
--- /dev/null
+++ b/include/media/MediaAnalyticsItem.h
@@ -0,0 +1 @@
+../../media/libmediametrics/include/MediaAnalyticsItem.h
\ No newline at end of file
diff --git a/include/media/MediaCasDefs.h b/include/media/MediaCasDefs.h
new file mode 100644
index 0000000..8c5a967
--- /dev/null
+++ b/include/media/MediaCasDefs.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CAS_DEFS_H_
+#define MEDIA_CAS_DEFS_H_
+
+#include <binder/Parcel.h>
+#include <media/cas/CasAPI.h>
+#include <media/cas/DescramblerAPI.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace android {
+class IMemory;
+namespace media {
+
+namespace MediaCas {
+class ParcelableCasData : public CasData,
+                          public Parcelable {
+public:
+    ParcelableCasData() {}
+    ParcelableCasData(const uint8_t *data, size_t size) :
+        CasData(data, data + size) {}
+    virtual ~ParcelableCasData() {}
+    status_t readFromParcel(const Parcel* parcel) override;
+    status_t writeToParcel(Parcel* parcel) const override;
+
+private:
+    DISALLOW_EVIL_CONSTRUCTORS(ParcelableCasData);
+};
+
+class ParcelableCasPluginDescriptor : public Parcelable {
+public:
+    ParcelableCasPluginDescriptor(int32_t CA_system_id, const char *name)
+        : mCASystemId(CA_system_id), mName(name) {}
+
+    ParcelableCasPluginDescriptor() : mCASystemId(0) {}
+
+    ParcelableCasPluginDescriptor(ParcelableCasPluginDescriptor&& desc) = default;
+
+    virtual ~ParcelableCasPluginDescriptor() {}
+
+    status_t readFromParcel(const Parcel* parcel) override;
+    status_t writeToParcel(Parcel* parcel) const override;
+
+private:
+    int32_t mCASystemId;
+    String16 mName;
+    DISALLOW_EVIL_CONSTRUCTORS(ParcelableCasPluginDescriptor);
+};
+}
+
+namespace MediaDescrambler {
+class DescrambleInfo : public Parcelable {
+public:
+    enum DestinationType {
+        kDestinationTypeVmPointer,    // non-secure
+        kDestinationTypeNativeHandle  // secure
+    };
+
+    DestinationType dstType;
+    DescramblerPlugin::ScramblingControl scramblingControl;
+    size_t numSubSamples;
+    DescramblerPlugin::SubSample *subSamples;
+    sp<IMemory> srcMem;
+    int32_t srcOffset;
+    void *dstPtr;
+    int32_t dstOffset;
+
+    DescrambleInfo();
+    virtual ~DescrambleInfo();
+    status_t readFromParcel(const Parcel* parcel) override;
+    status_t writeToParcel(Parcel* parcel) const override;
+
+private:
+
+    DISALLOW_EVIL_CONSTRUCTORS(DescrambleInfo);
+};
+}
+
+} // namespace media
+} // namespace android
+
+
+#endif // MEDIA_CAS_DEFS_H_
diff --git a/include/media/MediaCodecBuffer.h b/include/media/MediaCodecBuffer.h
new file mode 120000
index 0000000..8c9aa76
--- /dev/null
+++ b/include/media/MediaCodecBuffer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/MediaCodecBuffer.h
\ No newline at end of file
diff --git a/include/media/MediaCodecInfo.h b/include/media/MediaCodecInfo.h
deleted file mode 100644
index 48d0407..0000000
--- a/include/media/MediaCodecInfo.h
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright 2014, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_CODEC_INFO_H_
-
-#define MEDIA_CODEC_INFO_H_
-
-#include <binder/Parcel.h>
-#include <media/stagefright/foundation/ABase.h>
-#include <media/stagefright/foundation/AString.h>
-
-#include <sys/types.h>
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/RefBase.h>
-#include <utils/Vector.h>
-#include <utils/StrongPointer.h>
-
-namespace android {
-
-struct AMessage;
-class Parcel;
-
-typedef KeyedVector<AString, AString> CodecSettings;
-
-struct MediaCodecInfo : public RefBase {
-    struct ProfileLevel {
-        uint32_t mProfile;
-        uint32_t mLevel;
-    };
-
-    struct Capabilities : public RefBase {
-        enum {
-            // decoder flags
-            kFlagSupportsAdaptivePlayback = 1 << 0,
-            kFlagSupportsSecurePlayback = 1 << 1,
-            kFlagSupportsTunneledPlayback = 1 << 2,
-
-            // encoder flags
-            kFlagSupportsIntraRefresh = 1 << 0,
-
-        };
-
-        void getSupportedProfileLevels(Vector<ProfileLevel> *profileLevels) const;
-        void getSupportedColorFormats(Vector<uint32_t> *colorFormats) const;
-        uint32_t getFlags() const;
-        const sp<AMessage> getDetails() const;
-
-    protected:
-        Vector<ProfileLevel> mProfileLevels;
-        Vector<uint32_t> mColorFormats;
-        uint32_t mFlags;
-        sp<AMessage> mDetails;
-
-        Capabilities();
-
-    private:
-        // read object from parcel even if object creation fails
-        static sp<Capabilities> FromParcel(const Parcel &parcel);
-        status_t writeToParcel(Parcel *parcel) const;
-
-        DISALLOW_EVIL_CONSTRUCTORS(Capabilities);
-
-        friend class MediaCodecInfo;
-    };
-
-    // Use a subclass to allow setting fields on construction without allowing
-    // to do the same throughout the framework.
-    struct CapabilitiesBuilder : public Capabilities {
-        void addProfileLevel(uint32_t profile, uint32_t level);
-        void addColorFormat(uint32_t format);
-        void addFlags(uint32_t flags);
-    };
-
-    bool isEncoder() const;
-    bool hasQuirk(const char *name) const;
-    void getSupportedMimes(Vector<AString> *mimes) const;
-    const sp<Capabilities> getCapabilitiesFor(const char *mime) const;
-    const char *getCodecName() const;
-
-    /**
-     * Serialization over Binder
-     */
-    static sp<MediaCodecInfo> FromParcel(const Parcel &parcel);
-    status_t writeToParcel(Parcel *parcel) const;
-
-private:
-    // variable set only in constructor - these are accessed by MediaCodecList
-    // to avoid duplication of same variables
-    AString mName;
-    bool mIsEncoder;
-    bool mHasSoleMime; // was initialized with mime
-
-    Vector<AString> mQuirks;
-    KeyedVector<AString, sp<Capabilities> > mCaps;
-
-    sp<Capabilities> mCurrentCaps; // currently initalized capabilities
-
-    ssize_t getCapabilityIndex(const char *mime) const;
-
-    /* Methods used by MediaCodecList to construct the info
-     * object from XML.
-     *
-     * After info object is created:
-     * - additional quirks can be added
-     * - additional mimes can be added
-     *   - OMX codec capabilities can be set for the current mime-type
-     *   - a capability detail can be set for the current mime-type
-     *   - a feature can be set for the current mime-type
-     *   - info object can be completed when parsing of a mime-type is done
-     */
-    MediaCodecInfo(AString name, bool encoder, const char *mime);
-    void addQuirk(const char *name);
-    status_t addMime(const char *mime);
-    status_t updateMime(const char *mime);
-
-    status_t initializeCapabilities(const sp<Capabilities> &caps);
-    void addDetail(const AString &key, const AString &value);
-    void addFeature(const AString &key, int32_t value);
-    void addFeature(const AString &key, const char *value);
-    void removeMime(const char *mime);
-    void complete();
-
-    DISALLOW_EVIL_CONSTRUCTORS(MediaCodecInfo);
-
-    friend class MediaCodecList;
-    friend class MediaCodecListOverridesTest;
-};
-
-}  // namespace android
-
-#endif  // MEDIA_CODEC_INFO_H_
-
-
diff --git a/include/media/MediaCodecInfo.h b/include/media/MediaCodecInfo.h
new file mode 120000
index 0000000..ff44ce4
--- /dev/null
+++ b/include/media/MediaCodecInfo.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/MediaCodecInfo.h
\ No newline at end of file
diff --git a/include/media/MediaDefs.h b/include/media/MediaDefs.h
new file mode 120000
index 0000000..9850603
--- /dev/null
+++ b/include/media/MediaDefs.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/MediaDefs.h
\ No newline at end of file
diff --git a/include/media/MediaMetadataRetrieverInterface.h b/include/media/MediaMetadataRetrieverInterface.h
deleted file mode 100644
index bce6ee3..0000000
--- a/include/media/MediaMetadataRetrieverInterface.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
-**
-** Copyright (C) 2008 The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#ifndef ANDROID_MEDIAMETADATARETRIEVERINTERFACE_H
-#define ANDROID_MEDIAMETADATARETRIEVERINTERFACE_H
-
-#include <utils/RefBase.h>
-#include <media/mediametadataretriever.h>
-#include <media/mediascanner.h>
-#include <private/media/VideoFrame.h>
-
-namespace android {
-
-class DataSource;
-struct IMediaHTTPService;
-
-// Abstract base class
-class MediaMetadataRetrieverBase : public RefBase
-{
-public:
-                        MediaMetadataRetrieverBase() {}
-    virtual             ~MediaMetadataRetrieverBase() {}
-
-    virtual status_t    setDataSource(
-            const sp<IMediaHTTPService> &httpService,
-            const char *url,
-            const KeyedVector<String8, String8> *headers = NULL) = 0;
-
-    virtual status_t    setDataSource(int fd, int64_t offset, int64_t length) = 0;
-    virtual status_t setDataSource(const sp<DataSource>& source) = 0;
-    virtual VideoFrame* getFrameAtTime(int64_t timeUs, int option) = 0;
-    virtual MediaAlbumArt* extractAlbumArt() = 0;
-    virtual const char* extractMetadata(int keyCode) = 0;
-};
-
-// MediaMetadataRetrieverInterface
-class MediaMetadataRetrieverInterface : public MediaMetadataRetrieverBase
-{
-public:
-    MediaMetadataRetrieverInterface() {}
-
-    virtual             ~MediaMetadataRetrieverInterface() {}
-    virtual VideoFrame* getFrameAtTime(int64_t timeUs, int option) { return NULL; }
-    virtual MediaAlbumArt* extractAlbumArt() { return NULL; }
-    virtual const char* extractMetadata(int keyCode) { return NULL; }
-};
-
-}; // namespace android
-
-#endif // ANDROID_MEDIAMETADATARETRIEVERINTERFACE_H
diff --git a/include/media/MediaMetadataRetrieverInterface.h b/include/media/MediaMetadataRetrieverInterface.h
new file mode 120000
index 0000000..1c53511
--- /dev/null
+++ b/include/media/MediaMetadataRetrieverInterface.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/MediaMetadataRetrieverInterface.h
\ No newline at end of file
diff --git a/include/media/MediaPlayerInterface.h b/include/media/MediaPlayerInterface.h
deleted file mode 100644
index 4977efd..0000000
--- a/include/media/MediaPlayerInterface.h
+++ /dev/null
@@ -1,306 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_MEDIAPLAYERINTERFACE_H
-#define ANDROID_MEDIAPLAYERINTERFACE_H
-
-#ifdef __cplusplus
-
-#include <sys/types.h>
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/String8.h>
-#include <utils/RefBase.h>
-
-#include <media/mediaplayer.h>
-#include <media/AudioResamplerPublic.h>
-#include <media/AudioSystem.h>
-#include <media/AudioTimestamp.h>
-#include <media/AVSyncSettings.h>
-#include <media/Metadata.h>
-
-// Fwd decl to make sure everyone agrees that the scope of struct sockaddr_in is
-// global, and not in android::
-struct sockaddr_in;
-
-namespace android {
-
-class DataSource;
-class Parcel;
-class Surface;
-class IGraphicBufferProducer;
-
-template<typename T> class SortedVector;
-
-enum player_type {
-    STAGEFRIGHT_PLAYER = 3,
-    NU_PLAYER = 4,
-    // Test players are available only in the 'test' and 'eng' builds.
-    // The shared library with the test player is passed passed as an
-    // argument to the 'test:' url in the setDataSource call.
-    TEST_PLAYER = 5,
-};
-
-
-#define DEFAULT_AUDIOSINK_BUFFERCOUNT 4
-#define DEFAULT_AUDIOSINK_BUFFERSIZE 1200
-#define DEFAULT_AUDIOSINK_SAMPLERATE 44100
-
-// when the channel mask isn't known, use the channel count to derive a mask in AudioSink::open()
-#define CHANNEL_MASK_USE_CHANNEL_ORDER 0
-
-// duration below which we do not allow deep audio buffering
-#define AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US 5000000
-
-// callback mechanism for passing messages to MediaPlayer object
-typedef void (*notify_callback_f)(void* cookie,
-        int msg, int ext1, int ext2, const Parcel *obj);
-
-// abstract base class - use MediaPlayerInterface
-class MediaPlayerBase : public RefBase
-{
-public:
-    // AudioSink: abstraction layer for audio output
-    class AudioSink : public RefBase {
-    public:
-        enum cb_event_t {
-            CB_EVENT_FILL_BUFFER,   // Request to write more data to buffer.
-            CB_EVENT_STREAM_END,    // Sent after all the buffers queued in AF and HW are played
-                                    // back (after stop is called)
-            CB_EVENT_TEAR_DOWN      // The AudioTrack was invalidated due to use case change:
-                                    // Need to re-evaluate offloading options
-        };
-
-        // Callback returns the number of bytes actually written to the buffer.
-        typedef size_t (*AudioCallback)(
-                AudioSink *audioSink, void *buffer, size_t size, void *cookie,
-                        cb_event_t event);
-
-        virtual             ~AudioSink() {}
-        virtual bool        ready() const = 0; // audio output is open and ready
-        virtual ssize_t     bufferSize() const = 0;
-        virtual ssize_t     frameCount() const = 0;
-        virtual ssize_t     channelCount() const = 0;
-        virtual ssize_t     frameSize() const = 0;
-        virtual uint32_t    latency() const = 0;
-        virtual float       msecsPerFrame() const = 0;
-        virtual status_t    getPosition(uint32_t *position) const = 0;
-        virtual status_t    getTimestamp(AudioTimestamp &ts) const = 0;
-        virtual int64_t     getPlayedOutDurationUs(int64_t nowUs) const = 0;
-        virtual status_t    getFramesWritten(uint32_t *frameswritten) const = 0;
-        virtual audio_session_t getSessionId() const = 0;
-        virtual audio_stream_type_t getAudioStreamType() const = 0;
-        virtual uint32_t    getSampleRate() const = 0;
-        virtual int64_t     getBufferDurationInUs() const = 0;
-
-        // If no callback is specified, use the "write" API below to submit
-        // audio data.
-        virtual status_t    open(
-                uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask,
-                audio_format_t format=AUDIO_FORMAT_PCM_16_BIT,
-                int bufferCount=DEFAULT_AUDIOSINK_BUFFERCOUNT,
-                AudioCallback cb = NULL,
-                void *cookie = NULL,
-                audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                const audio_offload_info_t *offloadInfo = NULL,
-                bool doNotReconnect = false,
-                uint32_t suggestedFrameCount = 0) = 0;
-
-        virtual status_t    start() = 0;
-
-        /* Input parameter |size| is in byte units stored in |buffer|.
-         * Data is copied over and actual number of bytes written (>= 0)
-         * is returned, or no data is copied and a negative status code
-         * is returned (even when |blocking| is true).
-         * When |blocking| is false, AudioSink will immediately return after
-         * part of or full |buffer| is copied over.
-         * When |blocking| is true, AudioSink will wait to copy the entire
-         * buffer, unless an error occurs or the copy operation is
-         * prematurely stopped.
-         */
-        virtual ssize_t     write(const void* buffer, size_t size, bool blocking = true) = 0;
-
-        virtual void        stop() = 0;
-        virtual void        flush() = 0;
-        virtual void        pause() = 0;
-        virtual void        close() = 0;
-
-        virtual status_t    setPlaybackRate(const AudioPlaybackRate& rate) = 0;
-        virtual status_t    getPlaybackRate(AudioPlaybackRate* rate /* nonnull */) = 0;
-        virtual bool        needsTrailingPadding() { return true; }
-
-        virtual status_t    setParameters(const String8& /* keyValuePairs */) { return NO_ERROR; }
-        virtual String8     getParameters(const String8& /* keys */) { return String8::empty(); }
-    };
-
-                        MediaPlayerBase() : mCookie(0), mNotify(0) {}
-    virtual             ~MediaPlayerBase() {}
-    virtual status_t    initCheck() = 0;
-    virtual bool        hardwareOutput() = 0;
-
-    virtual status_t    setUID(uid_t /* uid */) {
-        return INVALID_OPERATION;
-    }
-
-    virtual status_t    setDataSource(
-            const sp<IMediaHTTPService> &httpService,
-            const char *url,
-            const KeyedVector<String8, String8> *headers = NULL) = 0;
-
-    virtual status_t    setDataSource(int fd, int64_t offset, int64_t length) = 0;
-
-    virtual status_t    setDataSource(const sp<IStreamSource>& /* source */) {
-        return INVALID_OPERATION;
-    }
-
-    virtual status_t    setDataSource(const sp<DataSource>& /* source */) {
-        return INVALID_OPERATION;
-    }
-
-    // pass the buffered IGraphicBufferProducer to the media player service
-    virtual status_t    setVideoSurfaceTexture(
-                                const sp<IGraphicBufferProducer>& bufferProducer) = 0;
-
-    virtual status_t    prepare() = 0;
-    virtual status_t    prepareAsync() = 0;
-    virtual status_t    start() = 0;
-    virtual status_t    stop() = 0;
-    virtual status_t    pause() = 0;
-    virtual bool        isPlaying() = 0;
-    virtual status_t    setPlaybackSettings(const AudioPlaybackRate& rate) {
-        // by default, players only support setting rate to the default
-        if (!isAudioPlaybackRateEqual(rate, AUDIO_PLAYBACK_RATE_DEFAULT)) {
-            return BAD_VALUE;
-        }
-        return OK;
-    }
-    virtual status_t    getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) {
-        *rate = AUDIO_PLAYBACK_RATE_DEFAULT;
-        return OK;
-    }
-    virtual status_t    setSyncSettings(const AVSyncSettings& sync, float /* videoFps */) {
-        // By default, players only support setting sync source to default; all other sync
-        // settings are ignored. There is no requirement for getters to return set values.
-        if (sync.mSource != AVSYNC_SOURCE_DEFAULT) {
-            return BAD_VALUE;
-        }
-        return OK;
-    }
-    virtual status_t    getSyncSettings(
-                                AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */) {
-        *sync = AVSyncSettings();
-        *videoFps = -1.f;
-        return OK;
-    }
-    virtual status_t    seekTo(int msec) = 0;
-    virtual status_t    getCurrentPosition(int *msec) = 0;
-    virtual status_t    getDuration(int *msec) = 0;
-    virtual status_t    reset() = 0;
-    virtual status_t    setLooping(int loop) = 0;
-    virtual player_type playerType() = 0;
-    virtual status_t    setParameter(int key, const Parcel &request) = 0;
-    virtual status_t    getParameter(int key, Parcel *reply) = 0;
-
-    // default no-op implementation of optional extensions
-    virtual status_t setRetransmitEndpoint(const struct sockaddr_in* /* endpoint */) {
-        return INVALID_OPERATION;
-    }
-    virtual status_t getRetransmitEndpoint(struct sockaddr_in* /* endpoint */) {
-        return INVALID_OPERATION;
-    }
-    virtual status_t setNextPlayer(const sp<MediaPlayerBase>& /* next */) {
-        return OK;
-    }
-
-    // Invoke a generic method on the player by using opaque parcels
-    // for the request and reply.
-    //
-    // @param request Parcel that is positioned at the start of the
-    //                data sent by the java layer.
-    // @param[out] reply Parcel to hold the reply data. Cannot be null.
-    // @return OK if the call was successful.
-    virtual status_t    invoke(const Parcel& request, Parcel *reply) = 0;
-
-    // The Client in the MetadataPlayerService calls this method on
-    // the native player to retrieve all or a subset of metadata.
-    //
-    // @param ids SortedList of metadata ID to be fetch. If empty, all
-    //            the known metadata should be returned.
-    // @param[inout] records Parcel where the player appends its metadata.
-    // @return OK if the call was successful.
-    virtual status_t    getMetadata(const media::Metadata::Filter& /* ids */,
-                                    Parcel* /* records */) {
-        return INVALID_OPERATION;
-    };
-
-    void        setNotifyCallback(
-            void* cookie, notify_callback_f notifyFunc) {
-        Mutex::Autolock autoLock(mNotifyLock);
-        mCookie = cookie; mNotify = notifyFunc;
-    }
-
-    void        sendEvent(int msg, int ext1=0, int ext2=0,
-                          const Parcel *obj=NULL) {
-        notify_callback_f notifyCB;
-        void* cookie;
-        {
-            Mutex::Autolock autoLock(mNotifyLock);
-            notifyCB = mNotify;
-            cookie = mCookie;
-        }
-
-        if (notifyCB) notifyCB(cookie, msg, ext1, ext2, obj);
-    }
-
-    virtual status_t dump(int /* fd */, const Vector<String16>& /* args */) const {
-        return INVALID_OPERATION;
-    }
-
-private:
-    friend class MediaPlayerService;
-
-    Mutex               mNotifyLock;
-    void*               mCookie;
-    notify_callback_f   mNotify;
-};
-
-// Implement this class for media players that use the AudioFlinger software mixer
-class MediaPlayerInterface : public MediaPlayerBase
-{
-public:
-    virtual             ~MediaPlayerInterface() { }
-    virtual bool        hardwareOutput() { return false; }
-    virtual void        setAudioSink(const sp<AudioSink>& audioSink) { mAudioSink = audioSink; }
-protected:
-    sp<AudioSink>       mAudioSink;
-};
-
-// Implement this class for media players that output audio directly to hardware
-class MediaPlayerHWInterface : public MediaPlayerBase
-{
-public:
-    virtual             ~MediaPlayerHWInterface() {}
-    virtual bool        hardwareOutput() { return true; }
-    virtual status_t    setVolume(float leftVolume, float rightVolume) = 0;
-    virtual status_t    setAudioStreamType(audio_stream_type_t streamType) = 0;
-};
-
-}; // namespace android
-
-#endif // __cplusplus
-
-
-#endif // ANDROID_MEDIAPLAYERINTERFACE_H
diff --git a/include/media/MediaPlayerInterface.h b/include/media/MediaPlayerInterface.h
new file mode 120000
index 0000000..9b2e1c7
--- /dev/null
+++ b/include/media/MediaPlayerInterface.h
@@ -0,0 +1 @@
+../../media/libmediaplayerservice/include/MediaPlayerInterface.h
\ No newline at end of file
diff --git a/include/media/MediaProfiles.h b/include/media/MediaProfiles.h
deleted file mode 100644
index e02918f..0000000
--- a/include/media/MediaProfiles.h
+++ /dev/null
@@ -1,452 +0,0 @@
-/*
- **
- ** Copyright 2010, The Android Open Source Project.
- **
- ** Licensed under the Apache License, Version 2.0 (the "License");
- ** you may not use this file except in compliance with the License.
- ** You may obtain a copy of the License at
- **
- **     http://www.apache.org/licenses/LICENSE-2.0
- **
- ** Unless required by applicable law or agreed to in writing, software
- ** distributed under the License is distributed on an "AS IS" BASIS,
- ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ** See the License for the specific language governing permissions and
- ** limitations under the License.
- */
-
-#ifndef ANDROID_MEDIAPROFILES_H
-#define ANDROID_MEDIAPROFILES_H
-
-#include <utils/threads.h>
-#include <media/mediarecorder.h>
-
-namespace android {
-
-enum camcorder_quality {
-    CAMCORDER_QUALITY_LIST_START = 0,
-    CAMCORDER_QUALITY_LOW  = 0,
-    CAMCORDER_QUALITY_HIGH = 1,
-    CAMCORDER_QUALITY_QCIF = 2,
-    CAMCORDER_QUALITY_CIF = 3,
-    CAMCORDER_QUALITY_480P = 4,
-    CAMCORDER_QUALITY_720P = 5,
-    CAMCORDER_QUALITY_1080P = 6,
-    CAMCORDER_QUALITY_QVGA = 7,
-    CAMCORDER_QUALITY_2160P = 8,
-    CAMCORDER_QUALITY_LIST_END = 8,
-
-    CAMCORDER_QUALITY_TIME_LAPSE_LIST_START = 1000,
-    CAMCORDER_QUALITY_TIME_LAPSE_LOW  = 1000,
-    CAMCORDER_QUALITY_TIME_LAPSE_HIGH = 1001,
-    CAMCORDER_QUALITY_TIME_LAPSE_QCIF = 1002,
-    CAMCORDER_QUALITY_TIME_LAPSE_CIF = 1003,
-    CAMCORDER_QUALITY_TIME_LAPSE_480P = 1004,
-    CAMCORDER_QUALITY_TIME_LAPSE_720P = 1005,
-    CAMCORDER_QUALITY_TIME_LAPSE_1080P = 1006,
-    CAMCORDER_QUALITY_TIME_LAPSE_QVGA = 1007,
-    CAMCORDER_QUALITY_TIME_LAPSE_2160P = 1008,
-    CAMCORDER_QUALITY_TIME_LAPSE_LIST_END = 1008,
-
-    CAMCORDER_QUALITY_HIGH_SPEED_LIST_START = 2000,
-    CAMCORDER_QUALITY_HIGH_SPEED_LOW  = 2000,
-    CAMCORDER_QUALITY_HIGH_SPEED_HIGH = 2001,
-    CAMCORDER_QUALITY_HIGH_SPEED_480P = 2002,
-    CAMCORDER_QUALITY_HIGH_SPEED_720P = 2003,
-    CAMCORDER_QUALITY_HIGH_SPEED_1080P = 2004,
-    CAMCORDER_QUALITY_HIGH_SPEED_2160P = 2005,
-    CAMCORDER_QUALITY_HIGH_SPEED_LIST_END = 2005,
-};
-
-enum video_decoder {
-    VIDEO_DECODER_WMV,
-};
-
-enum audio_decoder {
-    AUDIO_DECODER_WMA,
-};
-
-
-class MediaProfiles
-{
-public:
-
-    /**
-     * Returns the singleton instance for subsequence queries.
-     * or NULL if error.
-     */
-    static MediaProfiles* getInstance();
-
-    /**
-     * Returns the value for the given param name for the given camera at
-     * the given quality level, or -1 if error.
-     *
-     * Supported param name are:
-     * duration - the recording duration.
-     * file.format - output file format. see mediarecorder.h for details
-     * vid.codec - video encoder. see mediarecorder.h for details.
-     * aud.codec - audio encoder. see mediarecorder.h for details.
-     * vid.width - video frame width
-     * vid.height - video frame height
-     * vid.fps - video frame rate
-     * vid.bps - video bit rate
-     * aud.bps - audio bit rate
-     * aud.hz - audio sample rate
-     * aud.ch - number of audio channels
-     */
-    int getCamcorderProfileParamByName(const char *name, int cameraId,
-                                       camcorder_quality quality) const;
-
-    /**
-     * Returns true if a profile for the given camera at the given quality exists,
-     * or false if not.
-     */
-    bool hasCamcorderProfile(int cameraId, camcorder_quality quality) const;
-
-    /**
-     * Returns the output file formats supported.
-     */
-    Vector<output_format> getOutputFileFormats() const;
-
-    /**
-     * Returns the video encoders supported.
-     */
-    Vector<video_encoder> getVideoEncoders() const;
-
-    /**
-     * Returns the value for the given param name for the given video encoder
-     * returned from getVideoEncoderByIndex or -1 if error.
-     *
-     * Supported param name are:
-     * enc.vid.width.min - min video frame width
-     * enc.vid.width.max - max video frame width
-     * enc.vid.height.min - min video frame height
-     * enc.vid.height.max - max video frame height
-     * enc.vid.bps.min - min bit rate in bits per second
-     * enc.vid.bps.max - max bit rate in bits per second
-     * enc.vid.fps.min - min frame rate in frames per second
-     * enc.vid.fps.max - max frame rate in frames per second
-     */
-    int getVideoEncoderParamByName(const char *name, video_encoder codec) const;
-
-    /**
-     * Returns the audio encoders supported.
-     */
-    Vector<audio_encoder> getAudioEncoders() const;
-
-    /**
-     * Returns the value for the given param name for the given audio encoder
-     * returned from getAudioEncoderByIndex or -1 if error.
-     *
-     * Supported param name are:
-     * enc.aud.ch.min - min number of channels
-     * enc.aud.ch.max - max number of channels
-     * enc.aud.bps.min - min bit rate in bits per second
-     * enc.aud.bps.max - max bit rate in bits per second
-     * enc.aud.hz.min - min sample rate in samples per second
-     * enc.aud.hz.max - max sample rate in samples per second
-     */
-    int getAudioEncoderParamByName(const char *name, audio_encoder codec) const;
-
-    /**
-      * Returns the video decoders supported.
-      */
-    Vector<video_decoder> getVideoDecoders() const;
-
-     /**
-      * Returns the audio decoders supported.
-      */
-    Vector<audio_decoder> getAudioDecoders() const;
-
-    /**
-     * Returns the number of image encoding quality levels supported.
-     */
-    Vector<int> getImageEncodingQualityLevels(int cameraId) const;
-
-    /**
-     * Returns the start time offset (in ms) for the given camera Id.
-     * If the given camera Id does not exist, -1 will be returned.
-     */
-    int getStartTimeOffsetMs(int cameraId) const;
-
-private:
-    enum {
-        // Camcorder profiles (high/low) and timelapse profiles (high/low)
-        kNumRequiredProfiles = 4,
-    };
-
-    MediaProfiles& operator=(const MediaProfiles&);  // Don't call me
-    MediaProfiles(const MediaProfiles&);             // Don't call me
-    MediaProfiles() {}                               // Dummy default constructor
-    ~MediaProfiles();                                // Don't delete me
-
-    struct VideoCodec {
-        VideoCodec(video_encoder codec, int bitRate, int frameWidth, int frameHeight, int frameRate)
-            : mCodec(codec),
-              mBitRate(bitRate),
-              mFrameWidth(frameWidth),
-              mFrameHeight(frameHeight),
-              mFrameRate(frameRate) {}
-
-        VideoCodec(const VideoCodec& copy) {
-            mCodec = copy.mCodec;
-            mBitRate = copy.mBitRate;
-            mFrameWidth = copy.mFrameWidth;
-            mFrameHeight = copy.mFrameHeight;
-            mFrameRate = copy.mFrameRate;
-        }
-
-        ~VideoCodec() {}
-
-        video_encoder mCodec;
-        int mBitRate;
-        int mFrameWidth;
-        int mFrameHeight;
-        int mFrameRate;
-    };
-
-    struct AudioCodec {
-        AudioCodec(audio_encoder codec, int bitRate, int sampleRate, int channels)
-            : mCodec(codec),
-              mBitRate(bitRate),
-              mSampleRate(sampleRate),
-              mChannels(channels) {}
-
-        AudioCodec(const AudioCodec& copy) {
-            mCodec = copy.mCodec;
-            mBitRate = copy.mBitRate;
-            mSampleRate = copy.mSampleRate;
-            mChannels = copy.mChannels;
-        }
-
-        ~AudioCodec() {}
-
-        audio_encoder mCodec;
-        int mBitRate;
-        int mSampleRate;
-        int mChannels;
-    };
-
-    struct CamcorderProfile {
-        CamcorderProfile()
-            : mCameraId(0),
-              mFileFormat(OUTPUT_FORMAT_THREE_GPP),
-              mQuality(CAMCORDER_QUALITY_HIGH),
-              mDuration(0),
-              mVideoCodec(0),
-              mAudioCodec(0) {}
-
-        CamcorderProfile(const CamcorderProfile& copy) {
-            mCameraId = copy.mCameraId;
-            mFileFormat = copy.mFileFormat;
-            mQuality = copy.mQuality;
-            mDuration = copy.mDuration;
-            mVideoCodec = new VideoCodec(*copy.mVideoCodec);
-            mAudioCodec = new AudioCodec(*copy.mAudioCodec);
-        }
-
-        ~CamcorderProfile() {
-            delete mVideoCodec;
-            delete mAudioCodec;
-        }
-
-        int mCameraId;
-        output_format mFileFormat;
-        camcorder_quality mQuality;
-        int mDuration;
-        VideoCodec *mVideoCodec;
-        AudioCodec *mAudioCodec;
-    };
-
-    struct VideoEncoderCap {
-        // Ugly constructor
-        VideoEncoderCap(video_encoder codec,
-                        int minBitRate, int maxBitRate,
-                        int minFrameWidth, int maxFrameWidth,
-                        int minFrameHeight, int maxFrameHeight,
-                        int minFrameRate, int maxFrameRate)
-            : mCodec(codec),
-              mMinBitRate(minBitRate), mMaxBitRate(maxBitRate),
-              mMinFrameWidth(minFrameWidth), mMaxFrameWidth(maxFrameWidth),
-              mMinFrameHeight(minFrameHeight), mMaxFrameHeight(maxFrameHeight),
-              mMinFrameRate(minFrameRate), mMaxFrameRate(maxFrameRate) {}
-
-         ~VideoEncoderCap() {}
-
-        video_encoder mCodec;
-        int mMinBitRate, mMaxBitRate;
-        int mMinFrameWidth, mMaxFrameWidth;
-        int mMinFrameHeight, mMaxFrameHeight;
-        int mMinFrameRate, mMaxFrameRate;
-    };
-
-    struct AudioEncoderCap {
-        // Ugly constructor
-        AudioEncoderCap(audio_encoder codec,
-                        int minBitRate, int maxBitRate,
-                        int minSampleRate, int maxSampleRate,
-                        int minChannels, int maxChannels)
-            : mCodec(codec),
-              mMinBitRate(minBitRate), mMaxBitRate(maxBitRate),
-              mMinSampleRate(minSampleRate), mMaxSampleRate(maxSampleRate),
-              mMinChannels(minChannels), mMaxChannels(maxChannels) {}
-
-        ~AudioEncoderCap() {}
-
-        audio_encoder mCodec;
-        int mMinBitRate, mMaxBitRate;
-        int mMinSampleRate, mMaxSampleRate;
-        int mMinChannels, mMaxChannels;
-    };
-
-    struct VideoDecoderCap {
-        VideoDecoderCap(video_decoder codec): mCodec(codec) {}
-        ~VideoDecoderCap() {}
-
-        video_decoder mCodec;
-    };
-
-    struct AudioDecoderCap {
-        AudioDecoderCap(audio_decoder codec): mCodec(codec) {}
-        ~AudioDecoderCap() {}
-
-        audio_decoder mCodec;
-    };
-
-    struct NameToTagMap {
-        const char* name;
-        int tag;
-    };
-
-    struct ImageEncodingQualityLevels {
-        int mCameraId;
-        Vector<int> mLevels;
-    };
-
-    int getCamcorderProfileIndex(int cameraId, camcorder_quality quality) const;
-    void initRequiredProfileRefs(const Vector<int>& cameraIds);
-    int getRequiredProfileRefIndex(int cameraId);
-
-    // Debug
-    static void logVideoCodec(const VideoCodec& codec);
-    static void logAudioCodec(const AudioCodec& codec);
-    static void logVideoEncoderCap(const VideoEncoderCap& cap);
-    static void logAudioEncoderCap(const AudioEncoderCap& cap);
-    static void logVideoDecoderCap(const VideoDecoderCap& cap);
-    static void logAudioDecoderCap(const AudioDecoderCap& cap);
-
-    // If the xml configuration file does exist, use the settings
-    // from the xml
-    static MediaProfiles* createInstanceFromXmlFile(const char *xml);
-    static output_format createEncoderOutputFileFormat(const char **atts);
-    static VideoCodec* createVideoCodec(const char **atts, MediaProfiles *profiles);
-    static AudioCodec* createAudioCodec(const char **atts, MediaProfiles *profiles);
-    static AudioDecoderCap* createAudioDecoderCap(const char **atts);
-    static VideoDecoderCap* createVideoDecoderCap(const char **atts);
-    static VideoEncoderCap* createVideoEncoderCap(const char **atts);
-    static AudioEncoderCap* createAudioEncoderCap(const char **atts);
-
-    static CamcorderProfile* createCamcorderProfile(
-                int cameraId, const char **atts, Vector<int>& cameraIds);
-
-    static int getCameraId(const char **atts);
-
-    void addStartTimeOffset(int cameraId, const char **atts);
-
-    ImageEncodingQualityLevels* findImageEncodingQualityLevels(int cameraId) const;
-    void addImageEncodingQualityLevel(int cameraId, const char** atts);
-
-    // Customized element tag handler for parsing the xml configuration file.
-    static void startElementHandler(void *userData, const char *name, const char **atts);
-
-    // If the xml configuration file does not exist, use hard-coded values
-    static MediaProfiles* createDefaultInstance();
-
-    static CamcorderProfile *createDefaultCamcorderQcifProfile(camcorder_quality quality);
-    static CamcorderProfile *createDefaultCamcorderCifProfile(camcorder_quality quality);
-    static void createDefaultCamcorderLowProfiles(
-            MediaProfiles::CamcorderProfile **lowProfile,
-            MediaProfiles::CamcorderProfile **lowSpecificProfile);
-    static void createDefaultCamcorderHighProfiles(
-            MediaProfiles::CamcorderProfile **highProfile,
-            MediaProfiles::CamcorderProfile **highSpecificProfile);
-
-    static CamcorderProfile *createDefaultCamcorderTimeLapseQcifProfile(camcorder_quality quality);
-    static CamcorderProfile *createDefaultCamcorderTimeLapse480pProfile(camcorder_quality quality);
-    static void createDefaultCamcorderTimeLapseLowProfiles(
-            MediaProfiles::CamcorderProfile **lowTimeLapseProfile,
-            MediaProfiles::CamcorderProfile **lowSpecificTimeLapseProfile);
-    static void createDefaultCamcorderTimeLapseHighProfiles(
-            MediaProfiles::CamcorderProfile **highTimeLapseProfile,
-            MediaProfiles::CamcorderProfile **highSpecificTimeLapseProfile);
-
-    static void createDefaultCamcorderProfiles(MediaProfiles *profiles);
-    static void createDefaultVideoEncoders(MediaProfiles *profiles);
-    static void createDefaultAudioEncoders(MediaProfiles *profiles);
-    static void createDefaultVideoDecoders(MediaProfiles *profiles);
-    static void createDefaultAudioDecoders(MediaProfiles *profiles);
-    static void createDefaultEncoderOutputFileFormats(MediaProfiles *profiles);
-    static void createDefaultImageEncodingQualityLevels(MediaProfiles *profiles);
-    static void createDefaultImageDecodingMaxMemory(MediaProfiles *profiles);
-
-    static VideoEncoderCap* createDefaultH263VideoEncoderCap();
-    static VideoEncoderCap* createDefaultM4vVideoEncoderCap();
-    static AudioEncoderCap* createDefaultAmrNBEncoderCap();
-
-    static int findTagForName(const NameToTagMap *map, size_t nMappings, const char *name);
-
-    /**
-     * Check on existing profiles with the following criteria:
-     * 1. Low quality profile must have the lowest video
-     *    resolution product (width x height)
-     * 2. High quality profile must have the highest video
-     *    resolution product (width x height)
-     *
-     * and add required low/high quality camcorder/timelapse
-     * profiles if they are not found. This allows to remove
-     * duplicate profile definitions in the media_profiles.xml
-     * file.
-     */
-    void checkAndAddRequiredProfilesIfNecessary();
-
-
-    // Mappings from name (for instance, codec name) to enum value
-    static const NameToTagMap sVideoEncoderNameMap[];
-    static const NameToTagMap sAudioEncoderNameMap[];
-    static const NameToTagMap sFileFormatMap[];
-    static const NameToTagMap sVideoDecoderNameMap[];
-    static const NameToTagMap sAudioDecoderNameMap[];
-    static const NameToTagMap sCamcorderQualityNameMap[];
-
-    static bool sIsInitialized;
-    static MediaProfiles *sInstance;
-    static Mutex sLock;
-    int mCurrentCameraId;
-
-    Vector<CamcorderProfile*> mCamcorderProfiles;
-    Vector<AudioEncoderCap*>  mAudioEncoders;
-    Vector<VideoEncoderCap*>  mVideoEncoders;
-    Vector<AudioDecoderCap*>  mAudioDecoders;
-    Vector<VideoDecoderCap*>  mVideoDecoders;
-    Vector<output_format>     mEncoderOutputFileFormats;
-    Vector<ImageEncodingQualityLevels *>  mImageEncodingQualityLevels;
-    KeyedVector<int, int> mStartTimeOffsets;
-
-    typedef struct {
-        bool mHasRefProfile;      // Refers to an existing profile
-        int  mRefProfileIndex;    // Reference profile index
-        int  mResolutionProduct;  // width x height
-    } RequiredProfileRefInfo;     // Required low and high profiles
-
-    typedef struct {
-        RequiredProfileRefInfo mRefs[kNumRequiredProfiles];
-        int mCameraId;
-    } RequiredProfiles;
-
-    RequiredProfiles *mRequiredProfileRefs;
-    Vector<int>              mCameraIds;
-};
-
-}; // namespace android
-
-#endif // ANDROID_MEDIAPROFILES_H
diff --git a/include/media/MediaProfiles.h b/include/media/MediaProfiles.h
new file mode 120000
index 0000000..651c6e6
--- /dev/null
+++ b/include/media/MediaProfiles.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/MediaProfiles.h
\ No newline at end of file
diff --git a/include/media/MediaRecorderBase.h b/include/media/MediaRecorderBase.h
deleted file mode 100644
index 5195993..0000000
--- a/include/media/MediaRecorderBase.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_RECORDER_BASE_H_
-
-#define MEDIA_RECORDER_BASE_H_
-
-#include <media/mediarecorder.h>
-
-#include <system/audio.h>
-
-namespace android {
-
-class ICameraRecordingProxy;
-class Surface;
-class IGraphicBufferConsumer;
-class IGraphicBufferProducer;
-
-struct MediaRecorderBase {
-    MediaRecorderBase(const String16 &opPackageName)
-        : mOpPackageName(opPackageName) {}
-    virtual ~MediaRecorderBase() {}
-
-    virtual status_t init() = 0;
-    virtual status_t setAudioSource(audio_source_t as) = 0;
-    virtual status_t setVideoSource(video_source vs) = 0;
-    virtual status_t setOutputFormat(output_format of) = 0;
-    virtual status_t setAudioEncoder(audio_encoder ae) = 0;
-    virtual status_t setVideoEncoder(video_encoder ve) = 0;
-    virtual status_t setVideoSize(int width, int height) = 0;
-    virtual status_t setVideoFrameRate(int frames_per_second) = 0;
-    virtual status_t setCamera(const sp<hardware::ICamera>& camera,
-                               const sp<ICameraRecordingProxy>& proxy) = 0;
-    virtual status_t setPreviewSurface(const sp<IGraphicBufferProducer>& surface) = 0;
-    virtual status_t setOutputFile(int fd, int64_t offset, int64_t length) = 0;
-    virtual status_t setOutputFileAuxiliary(int fd) {return INVALID_OPERATION;}
-    virtual status_t setParameters(const String8& params) = 0;
-    virtual status_t setListener(const sp<IMediaRecorderClient>& listener) = 0;
-    virtual status_t setClientName(const String16& clientName) = 0;
-    virtual status_t prepare() = 0;
-    virtual status_t start() = 0;
-    virtual status_t stop() = 0;
-    virtual status_t pause() = 0;
-    virtual status_t resume() = 0;
-    virtual status_t close() = 0;
-    virtual status_t reset() = 0;
-    virtual status_t getMaxAmplitude(int *max) = 0;
-    virtual status_t dump(int fd, const Vector<String16>& args) const = 0;
-    virtual status_t setInputSurface(const sp<IGraphicBufferConsumer>& surface) = 0;
-    virtual sp<IGraphicBufferProducer> querySurfaceMediaSource() const = 0;
-
-
-protected:
-    String16 mOpPackageName;
-
-private:
-    MediaRecorderBase(const MediaRecorderBase &);
-    MediaRecorderBase &operator=(const MediaRecorderBase &);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_RECORDER_BASE_H_
diff --git a/include/media/MediaRecorderBase.h b/include/media/MediaRecorderBase.h
new file mode 120000
index 0000000..e40f992
--- /dev/null
+++ b/include/media/MediaRecorderBase.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/MediaRecorderBase.h
\ No newline at end of file
diff --git a/include/media/MediaResource.h b/include/media/MediaResource.h
new file mode 120000
index 0000000..91346aa
--- /dev/null
+++ b/include/media/MediaResource.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/MediaResource.h
\ No newline at end of file
diff --git a/include/media/MediaResourcePolicy.h b/include/media/MediaResourcePolicy.h
new file mode 120000
index 0000000..5d165ee
--- /dev/null
+++ b/include/media/MediaResourcePolicy.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/MediaResourcePolicy.h
\ No newline at end of file
diff --git a/include/media/MemoryLeakTrackUtil.h b/include/media/MemoryLeakTrackUtil.h
new file mode 120000
index 0000000..504173e
--- /dev/null
+++ b/include/media/MemoryLeakTrackUtil.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/MemoryLeakTrackUtil.h
\ No newline at end of file
diff --git a/include/media/Metadata.h b/include/media/Metadata.h
new file mode 120000
index 0000000..e421168
--- /dev/null
+++ b/include/media/Metadata.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/Metadata.h
\ No newline at end of file
diff --git a/include/media/MidiDeviceInfo.h b/include/media/MidiDeviceInfo.h
new file mode 120000
index 0000000..95da7cf
--- /dev/null
+++ b/include/media/MidiDeviceInfo.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/MidiDeviceInfo.h
\ No newline at end of file
diff --git a/include/media/MidiIoWrapper.h b/include/media/MidiIoWrapper.h
new file mode 120000
index 0000000..786ec3d
--- /dev/null
+++ b/include/media/MidiIoWrapper.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/MidiIoWrapper.h
\ No newline at end of file
diff --git a/include/media/MmapStreamCallback.h b/include/media/MmapStreamCallback.h
new file mode 100644
index 0000000..8098e79
--- /dev/null
+++ b/include/media/MmapStreamCallback.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
+#define ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
+
+#include <system/audio.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+
+class MmapStreamCallback : public virtual RefBase {
+  public:
+
+    /**
+     * The mmap stream should be torn down because conditions that permitted its creation with
+     * the requested parameters have changed and do not allow it to operate with the requested
+     * constraints any more.
+     */
+    virtual void onTearDown() = 0;
+
+    /**
+     * The volume to be applied to the use case specified when opening the stream has changed
+     * \param[in] channels a channel mask containing all channels the volume should be applied to.
+     * \param[in] values the volume values to be applied to each channel. The size of the vector
+     *                   should correspond to the channel count retrieved with
+     *                   audio_channel_count_from_in_mask() or audio_channel_count_from_out_mask()
+     */
+    virtual void onVolumeChanged(audio_channel_mask_t channels, Vector<float> values) = 0;
+
+    /**
+     * The device the stream is routed to/from has changed
+     * \param[in] onRoutingChanged the unique device ID of the new device.
+     */
+    virtual void onRoutingChanged(audio_port_handle_t deviceId) = 0;
+
+  protected:
+    MmapStreamCallback() {}
+    virtual ~MmapStreamCallback() {}
+};
+
+
+} // namespace android
+
+#endif // ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
diff --git a/include/media/MmapStreamInterface.h b/include/media/MmapStreamInterface.h
new file mode 100644
index 0000000..7dbc19e
--- /dev/null
+++ b/include/media/MmapStreamInterface.h
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_MMAP_STREAM_INTERFACE_H
+#define ANDROID_AUDIO_MMAP_STREAM_INTERFACE_H
+
+#include <system/audio.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class MmapStreamCallback;
+
+class MmapStreamInterface : public virtual RefBase
+{
+  public:
+
+    /**
+     * Values for direction argument passed to openMmapStream()
+     */
+    typedef enum {
+        DIRECTION_OUTPUT = 0,  /**< open a playback mmap stream */
+        DIRECTION_INPUT,       /**< open a capture mmap stream */
+    } stream_direction_t;
+
+    class Client {
+     public:
+        uid_t clientUid;
+        pid_t clientPid;
+        String16 packageName;
+    };
+    /**
+     * Open a playback or capture stream in MMAP mode at the audio HAL.
+     *
+     * \note This method is implemented by AudioFlinger
+     *
+     * \param[in] direction open a playback or capture stream.
+     * \param[in] attr audio attributes defining the main use case for this stream
+     * \param[in,out] config audio parameters (sampling rate, format ...) for the stream.
+     *                       Requested parameters as input,
+     *                       Actual parameters as output
+     * \param[in] client a Client struct describing the first client using this stream.
+     * \param[in,out] deviceId audio device the stream should preferably be routed to/from
+     *                       Requested as input,
+     *                       Actual as output
+     * \param[in] callback the MmapStreamCallback interface used by AudioFlinger to notify
+     *                     condition changes affecting the stream operation
+     * \param[out] interface the MmapStreamInterface interface controlling the created stream
+     * \return OK if the stream was successfully created.
+     *         NO_INIT if AudioFlinger is not properly initialized
+     *         BAD_VALUE if the stream cannot be opened because of invalid arguments
+     *         INVALID_OPERATION if the stream cannot be opened because of platform limitations
+     */
+    static status_t openMmapStream(stream_direction_t direction,
+                                           const audio_attributes_t *attr,
+                                           audio_config_base_t *config,
+                                           const Client& client,
+                                           audio_port_handle_t *deviceId,
+                                           const sp<MmapStreamCallback>& callback,
+                                           sp<MmapStreamInterface>& interface);
+
+    /**
+     * Retrieve information on the mmap buffer used for audio samples transfer.
+     * Must be called before any other method after opening the stream or entering standby.
+     *
+     * \param[in] min_size_frames minimum buffer size requested. The actual buffer
+     *        size returned in struct audio_mmap_buffer_info can be larger.
+     * \param[out] info address at which the mmap buffer information should be returned.
+     *
+     * \return OK if the buffer was allocated.
+     *         NO_INIT in case of initialization error
+     *         BAD_VALUE if the requested buffer size is too large
+     *         INVALID_OPERATION if called out of sequence (e.g. buffer already allocated)
+     */
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info) = 0;
+
+    /**
+     * Read current read/write position in the mmap buffer with associated time stamp.
+     *
+     * \param[out] position address at which the mmap read/write position should be returned.
+     *
+     * \return OK if the position is successfully returned.
+     *         NO_INIT in case of initialization error
+     *         NOT_ENOUGH_DATA if the position cannot be retrieved
+     *         INVALID_OPERATION if called before createMmapBuffer()
+     */
+    virtual status_t getMmapPosition(struct audio_mmap_position *position) = 0;
+
+    /**
+     * Start a stream operating in mmap mode.
+     * createMmapBuffer() must be called before calling start()
+     *
+     * \param[in] client a Client struct describing the client starting on this stream.
+     * \param[out] handle unique handle for this instance. Used with stop().
+     * \return OK in case of success.
+     *         NO_INIT in case of initialization error
+     *         INVALID_OPERATION if called out of sequence
+     */
+    virtual status_t start(const Client& client, audio_port_handle_t *handle) = 0;
+
+    /**
+     * Stop a stream operating in mmap mode.
+     * Must be called after start()
+     *
+     * \param[in] handle unique handle allocated by start().
+     * \return OK in case of success.
+     *         NO_INIT in case of initialization error
+     *         INVALID_OPERATION if called out of sequence
+     */
+    virtual status_t stop(audio_port_handle_t handle) = 0;
+
+    /**
+     * Put a stream operating in mmap mode into standby.
+     * Must be called after createMmapBuffer(). Cannot be called if any client is active.
+     * It is recommended to place a mmap stream into standby as often as possible when no client is
+     * active to save power.
+     *
+     * \return OK in case of success.
+     *         NO_INIT in case of initialization error
+     *         INVALID_OPERATION if called out of sequence
+     */
+    virtual status_t standby() = 0;
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    MmapStreamInterface() {}
+
+    // The destructor automatically closes the stream.
+    virtual ~MmapStreamInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_AUDIO_MMAP_STREAM_INTERFACE_H
diff --git a/include/media/Modulo.h b/include/media/Modulo.h
new file mode 120000
index 0000000..989c4cb
--- /dev/null
+++ b/include/media/Modulo.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/Modulo.h
\ No newline at end of file
diff --git a/include/media/OMXBuffer.h b/include/media/OMXBuffer.h
new file mode 120000
index 0000000..00db207
--- /dev/null
+++ b/include/media/OMXBuffer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/OMXBuffer.h
\ No newline at end of file
diff --git a/include/media/OMXFenceParcelable.h b/include/media/OMXFenceParcelable.h
new file mode 120000
index 0000000..c4c1b0a
--- /dev/null
+++ b/include/media/OMXFenceParcelable.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/OMXFenceParcelable.h
\ No newline at end of file
diff --git a/include/media/PluginLoader.h b/include/media/PluginLoader.h
new file mode 120000
index 0000000..9101735
--- /dev/null
+++ b/include/media/PluginLoader.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/PluginLoader.h
\ No newline at end of file
diff --git a/include/media/RecordBufferConverter.h b/include/media/RecordBufferConverter.h
new file mode 120000
index 0000000..2d7bc0c
--- /dev/null
+++ b/include/media/RecordBufferConverter.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/RecordBufferConverter.h
\ No newline at end of file
diff --git a/include/media/RingBuffer.h b/include/media/RingBuffer.h
deleted file mode 100644
index df7c00e..0000000
--- a/include/media/RingBuffer.h
+++ /dev/null
@@ -1,361 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-
-#ifndef ANDROID_SERVICE_UTILS_RING_BUFFER_H
-#define ANDROID_SERVICE_UTILS_RING_BUFFER_H
-
-#include <utils/Log.h>
-#include <cutils/compiler.h>
-
-#include <iterator>
-#include <utility>
-#include <vector>
-
-namespace android {
-
-/**
- * A RingBuffer class that maintains an array of objects that can grow up to a certain size.
- * Elements added to the RingBuffer are inserted in the logical front of the buffer, and
- * invalidate all current iterators for that RingBuffer object.
- */
-template <class T>
-class RingBuffer final {
-public:
-
-    /**
-     * Construct a RingBuffer that can grow up to the given length.
-     */
-    RingBuffer(size_t length);
-
-    /**
-     * Forward iterator to this class.  Implements an std:forward_iterator.
-     */
-    class iterator : public std::iterator<std::forward_iterator_tag, T> {
-    public:
-        iterator(T* ptr, size_t size, size_t pos, size_t ctr);
-
-        iterator& operator++();
-
-        iterator operator++(int);
-
-        bool operator==(const iterator& rhs);
-
-        bool operator!=(const iterator& rhs);
-
-        T& operator*();
-
-        T* operator->();
-
-    private:
-        T* mPtr;
-        size_t mSize;
-        size_t mPos;
-        size_t mCtr;
-    };
-
-    /**
-     * Constant forward iterator to this class.  Implements an std:forward_iterator.
-     */
-    class const_iterator : public std::iterator<std::forward_iterator_tag, T> {
-    public:
-        const_iterator(const T* ptr, size_t size, size_t pos, size_t ctr);
-
-        const_iterator& operator++();
-
-        const_iterator operator++(int);
-
-        bool operator==(const const_iterator& rhs);
-
-        bool operator!=(const const_iterator& rhs);
-
-        const T& operator*();
-
-        const T* operator->();
-
-    private:
-        const T* mPtr;
-        size_t mSize;
-        size_t mPos;
-        size_t mCtr;
-    };
-
-    /**
-     * Adds item to the front of this RingBuffer.  If the RingBuffer is at its maximum length,
-     * this will result in the last element being replaced (this is done using the element's
-     * assignment operator).
-     *
-     * All current iterators are invalidated.
-     */
-    void add(const T& item);
-
-    /**
-     * Moves item to the front of this RingBuffer.  Following a call to this, item should no
-     * longer be used.  If the RingBuffer is at its maximum length, this will result in the
-     * last element being replaced (this is done using the element's assignment operator).
-     *
-     * All current iterators are invalidated.
-     */
-    void add(T&& item);
-
-    /**
-     * Construct item in-place in the front of this RingBuffer using the given arguments.  If
-     * the RingBuffer is at its maximum length, this will result in the last element being
-     * replaced (this is done using the element's assignment operator).
-     *
-     * All current iterators are invalidated.
-     */
-    template <class... Args>
-    void emplace(Args&&... args);
-
-    /**
-     * Get an iterator to the front of this RingBuffer.
-     */
-    iterator begin();
-
-    /**
-     * Get an iterator to the end of this RingBuffer.
-     */
-    iterator end();
-
-    /**
-     * Get a const_iterator to the front of this RingBuffer.
-     */
-    const_iterator begin() const;
-
-    /**
-     * Get a const_iterator to the end of this RingBuffer.
-     */
-    const_iterator end() const;
-
-    /**
-     * Return a reference to the element at a given index.  If the index is out of range for
-     * this ringbuffer, [0, size), the behavior for this is undefined.
-     */
-    T& operator[](size_t index);
-
-    /**
-     * Return a const reference to the element at a given index.  If the index is out of range
-     * for this ringbuffer, [0, size), the behavior for this is undefined.
-     */
-    const T& operator[](size_t index) const;
-
-    /**
-     * Return the current size of this RingBuffer.
-     */
-    size_t size() const;
-
-    /**
-     * Remove all elements from this RingBuffer and set the size to 0.
-     */
-    void clear();
-
-private:
-    size_t mFrontIdx;
-    size_t mMaxBufferSize;
-    std::vector<T> mBuffer;
-}; // class RingBuffer
-
-
-template <class T>
-RingBuffer<T>::RingBuffer(size_t length) : mFrontIdx{0}, mMaxBufferSize{length} {}
-
-template <class T>
-RingBuffer<T>::iterator::iterator(T* ptr, size_t size, size_t pos, size_t ctr) :
-        mPtr{ptr}, mSize{size}, mPos{pos}, mCtr{ctr} {}
-
-template <class T>
-typename RingBuffer<T>::iterator& RingBuffer<T>::iterator::operator++() {
-    ++mCtr;
-
-    if (CC_UNLIKELY(mCtr == mSize)) {
-        mPos = mSize;
-        return *this;
-    }
-
-    mPos = ((CC_UNLIKELY(mPos == 0)) ? mSize - 1 : mPos - 1);
-    return *this;
-}
-
-template <class T>
-typename RingBuffer<T>::iterator RingBuffer<T>::iterator::operator++(int) {
-    iterator tmp{mPtr, mSize, mPos, mCtr};
-    ++(*this);
-    return tmp;
-}
-
-template <class T>
-bool RingBuffer<T>::iterator::operator==(const iterator& rhs) {
-    return (mPtr + mPos) == (rhs.mPtr + rhs.mPos);
-}
-
-template <class T>
-bool RingBuffer<T>::iterator::operator!=(const iterator& rhs) {
-    return (mPtr + mPos) != (rhs.mPtr + rhs.mPos);
-}
-
-template <class T>
-T& RingBuffer<T>::iterator::operator*() {
-    return *(mPtr + mPos);
-}
-
-template <class T>
-T* RingBuffer<T>::iterator::operator->() {
-    return mPtr + mPos;
-}
-
-template <class T>
-RingBuffer<T>::const_iterator::const_iterator(const T* ptr, size_t size, size_t pos, size_t ctr) :
-        mPtr{ptr}, mSize{size}, mPos{pos}, mCtr{ctr} {}
-
-template <class T>
-typename RingBuffer<T>::const_iterator& RingBuffer<T>::const_iterator::operator++() {
-    ++mCtr;
-
-    if (CC_UNLIKELY(mCtr == mSize)) {
-        mPos = mSize;
-        return *this;
-    }
-
-    mPos = ((CC_UNLIKELY(mPos == 0)) ? mSize - 1 : mPos - 1);
-    return *this;
-}
-
-template <class T>
-typename RingBuffer<T>::const_iterator RingBuffer<T>::const_iterator::operator++(int) {
-    const_iterator tmp{mPtr, mSize, mPos, mCtr};
-    ++(*this);
-    return tmp;
-}
-
-template <class T>
-bool RingBuffer<T>::const_iterator::operator==(const const_iterator& rhs) {
-    return (mPtr + mPos) == (rhs.mPtr + rhs.mPos);
-}
-
-template <class T>
-bool RingBuffer<T>::const_iterator::operator!=(const const_iterator& rhs) {
-    return (mPtr + mPos) != (rhs.mPtr + rhs.mPos);
-}
-
-template <class T>
-const T& RingBuffer<T>::const_iterator::operator*() {
-    return *(mPtr + mPos);
-}
-
-template <class T>
-const T* RingBuffer<T>::const_iterator::operator->() {
-    return mPtr + mPos;
-}
-
-template <class T>
-void RingBuffer<T>::add(const T& item) {
-    if (mBuffer.size() < mMaxBufferSize) {
-        mBuffer.push_back(item);
-        mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
-        return;
-    }
-
-    mBuffer[mFrontIdx] = item;
-    mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
-}
-
-template <class T>
-void RingBuffer<T>::add(T&& item) {
-    if (mBuffer.size() != mMaxBufferSize) {
-        mBuffer.push_back(std::forward<T>(item));
-        mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
-        return;
-    }
-
-    // Only works for types with move assignment operator
-    mBuffer[mFrontIdx] = std::forward<T>(item);
-    mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
-}
-
-template <class T>
-template <class... Args>
-void RingBuffer<T>::emplace(Args&&... args) {
-    if (mBuffer.size() != mMaxBufferSize) {
-        mBuffer.emplace_back(std::forward<Args>(args)...);
-        mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
-        return;
-    }
-
-    // Only works for types with move assignment operator
-    mBuffer[mFrontIdx] = T(std::forward<Args>(args)...);
-    mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
-}
-
-template <class T>
-typename RingBuffer<T>::iterator RingBuffer<T>::begin() {
-    size_t tmp = (mBuffer.size() == 0) ? 0 : mBuffer.size() - 1;
-    return iterator(mBuffer.data(), mBuffer.size(), (mFrontIdx == 0) ? tmp : mFrontIdx - 1, 0);
-}
-
-template <class T>
-typename RingBuffer<T>::iterator RingBuffer<T>::end() {
-    size_t s = mBuffer.size();
-    return iterator(mBuffer.data(), s, s, s);
-}
-
-template <class T>
-typename RingBuffer<T>::const_iterator RingBuffer<T>::begin() const {
-    size_t tmp = (mBuffer.size() == 0) ? 0 : mBuffer.size() - 1;
-    return const_iterator(mBuffer.data(), mBuffer.size(),
-            (mFrontIdx == 0) ? tmp : mFrontIdx - 1, 0);
-}
-
-template <class T>
-typename RingBuffer<T>::const_iterator RingBuffer<T>::end() const {
-    size_t s = mBuffer.size();
-    return const_iterator(mBuffer.data(), s, s, s);
-}
-
-template <class T>
-T& RingBuffer<T>::operator[](size_t index) {
-    LOG_ALWAYS_FATAL_IF(index >= mBuffer.size(), "Index %zu out of bounds, size is %zu.",
-            index, mBuffer.size());
-    size_t pos = (index >= mFrontIdx) ?
-            mBuffer.size() - 1 - (index - mFrontIdx) : mFrontIdx - 1 - index;
-    return mBuffer[pos];
-}
-
-template <class T>
-const T& RingBuffer<T>::operator[](size_t index) const {
-    LOG_ALWAYS_FATAL_IF(index >= mBuffer.size(), "Index %zu out of bounds, size is %zu.",
-            index, mBuffer.size());
-    size_t pos = (index >= mFrontIdx) ?
-            mBuffer.size() - 1 - (index - mFrontIdx) : mFrontIdx - 1 - index;
-    return mBuffer[pos];
-}
-
-template <class T>
-size_t RingBuffer<T>::size() const {
-    return mBuffer.size();
-}
-
-template <class T>
-void RingBuffer<T>::clear() {
-    mBuffer.clear();
-    mFrontIdx = 0;
-}
-
-}; // namespace android
-
-#endif // ANDROID_SERVICE_UTILS_RING_BUFFER_H
-
-
diff --git a/include/media/RingBuffer.h b/include/media/RingBuffer.h
new file mode 120000
index 0000000..9af28d5
--- /dev/null
+++ b/include/media/RingBuffer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/RingBuffer.h
\ No newline at end of file
diff --git a/include/media/SharedLibrary.h b/include/media/SharedLibrary.h
deleted file mode 100644
index 88451a0..0000000
--- a/include/media/SharedLibrary.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SHARED_LIBRARY_H_
-#define SHARED_LIBRARY_H_
-
-#include <utils/RefBase.h>
-#include <utils/String8.h>
-#include <media/stagefright/foundation/ABase.h>
-
-namespace android {
-    class SharedLibrary : public RefBase {
-    public:
-        SharedLibrary(const String8 &path);
-        ~SharedLibrary();
-
-        bool operator!() const;
-        void *lookup(const char *symbol) const;
-        const char *lastError() const;
-
-    private:
-        void *mLibHandle;
-        DISALLOW_EVIL_CONSTRUCTORS(SharedLibrary);
-    };
-};
-
-#endif // SHARED_LIBRARY_H_
diff --git a/include/media/SharedLibrary.h b/include/media/SharedLibrary.h
new file mode 120000
index 0000000..9f8f5a4
--- /dev/null
+++ b/include/media/SharedLibrary.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/SharedLibrary.h
\ No newline at end of file
diff --git a/include/media/SingleStateQueue.h b/include/media/SingleStateQueue.h
new file mode 120000
index 0000000..619f6ee
--- /dev/null
+++ b/include/media/SingleStateQueue.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/SingleStateQueue.h
\ No newline at end of file
diff --git a/include/media/StringArray.h b/include/media/StringArray.h
new file mode 120000
index 0000000..616ce6c
--- /dev/null
+++ b/include/media/StringArray.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/StringArray.h
\ No newline at end of file
diff --git a/include/media/ToneGenerator.h b/include/media/ToneGenerator.h
deleted file mode 100644
index 9fd5f61..0000000
--- a/include/media/ToneGenerator.h
+++ /dev/null
@@ -1,327 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_TONEGENERATOR_H_
-#define ANDROID_TONEGENERATOR_H_
-
-#include <media/AudioSystem.h>
-#include <media/AudioTrack.h>
-#include <utils/Compat.h>
-#include <utils/KeyedVector.h>
-#include <utils/RefBase.h>
-#include <utils/threads.h>
-
-namespace android {
-
-class ToneGenerator {
-public:
-
-    // List of all available tones
-    // This enum must be kept consistant with constants in ToneGenerator JAVA class
-    enum tone_type {
-        // DTMF tones  ITU-T Recommendation Q.23
-        TONE_DTMF_0 = 0,  // 0 key: 1336Hz, 941Hz
-        TONE_DTMF_1,  // 1 key: 1209Hz, 697Hz
-        TONE_DTMF_2,  // 2 key: 1336Hz, 697Hz
-        TONE_DTMF_3,  // 3 key: 1477Hz, 697Hz
-        TONE_DTMF_4,  // 4 key: 1209Hz, 770Hz
-        TONE_DTMF_5,  // 5 key: 1336Hz, 770Hz
-        TONE_DTMF_6,  // 6 key: 1477Hz, 770Hz
-        TONE_DTMF_7,  // 7 key: 1209Hz, 852Hz
-        TONE_DTMF_8,  // 8 key: 1336Hz, 852Hz
-        TONE_DTMF_9,  // 9 key: 1477Hz, 852Hz
-        TONE_DTMF_S,  // * key: 1209Hz, 941Hz
-        TONE_DTMF_P,  // # key: 1477Hz, 941Hz
-        TONE_DTMF_A,  // A key: 1633Hz, 697Hz
-        TONE_DTMF_B,  // B key: 1633Hz, 770Hz
-        TONE_DTMF_C,  // C key: 1633Hz, 852Hz
-        TONE_DTMF_D,  // D key: 1633Hz, 941Hz
-        // Call supervisory tones:  3GPP TS 22.001 (CEPT)
-        TONE_SUP_DIAL,  // Dial tone: CEPT: 425Hz, continuous
-        FIRST_SUP_TONE = TONE_SUP_DIAL,
-        TONE_SUP_BUSY,  // Busy tone, CEPT: 425Hz, 500ms ON, 500ms OFF...
-        TONE_SUP_CONGESTION,  // Congestion tone CEPT, JAPAN: 425Hz, 200ms ON, 200ms OFF...
-        TONE_SUP_RADIO_ACK,  // Radio path acknowlegment, CEPT, ANSI: 425Hz, 200ms ON
-        TONE_SUP_RADIO_NOTAVAIL,  // Radio path not available: 425Hz, 200ms ON, 200 OFF 3 bursts
-        TONE_SUP_ERROR,  // Error/Special info:  950Hz+1400Hz+1800Hz, 330ms ON, 1s OFF...
-        TONE_SUP_CALL_WAITING,  // Call Waiting CEPT,JAPAN:  425Hz, 200ms ON, 600ms OFF, 200ms ON, 3s OFF...
-        TONE_SUP_RINGTONE,  // Ring Tone CEPT, JAPAN:  425Hz, 1s ON, 4s OFF...
-        LAST_SUP_TONE = TONE_SUP_RINGTONE,
-        // Proprietary tones:  3GPP TS 31.111
-        TONE_PROP_BEEP,  // General beep: 400Hz+1200Hz, 35ms ON
-        TONE_PROP_ACK,  // Positive Acknowlgement: 1200Hz, 100ms ON, 100ms OFF 2 bursts
-        TONE_PROP_NACK,  // Negative Acknowlgement: 300Hz+400Hz+500Hz, 400ms ON
-        TONE_PROP_PROMPT,  // Prompt tone: 400Hz+1200Hz, 200ms ON
-        TONE_PROP_BEEP2,  // General double beep: 400Hz+1200Hz, 35ms ON, 200ms OFF, 35ms on
-        // Additional call supervisory tones: specified by IS-95 only
-        TONE_SUP_INTERCEPT, // Intercept tone: alternating 440 Hz and 620 Hz tones, each on for 250 ms.
-        TONE_SUP_INTERCEPT_ABBREV, // Abbreviated intercept: intercept tone limited to 4 seconds
-        TONE_SUP_CONGESTION_ABBREV, // Abbreviated congestion: congestion tone limited to 4 seconds
-        TONE_SUP_CONFIRM, // Confirm tone: a 350 Hz tone added to a 440 Hz tone repeated 3 times in a 100 ms on, 100 ms off cycle.
-        TONE_SUP_PIP, // Pip tone: four bursts of 480 Hz tone (0.1 s on, 0.1 s off).
-
-        // CDMA Tones
-        TONE_CDMA_DIAL_TONE_LITE,
-        TONE_CDMA_NETWORK_USA_RINGBACK,
-        TONE_CDMA_INTERCEPT,
-        TONE_CDMA_ABBR_INTERCEPT,
-        TONE_CDMA_REORDER,
-        TONE_CDMA_ABBR_REORDER,
-        TONE_CDMA_NETWORK_BUSY,
-        TONE_CDMA_CONFIRM,
-        TONE_CDMA_ANSWER,
-        TONE_CDMA_NETWORK_CALLWAITING,
-        TONE_CDMA_PIP,
-
-        // ISDN
-        TONE_CDMA_CALL_SIGNAL_ISDN_NORMAL,  // ISDN Alert Normal
-        TONE_CDMA_CALL_SIGNAL_ISDN_INTERGROUP, // ISDN Intergroup
-        TONE_CDMA_CALL_SIGNAL_ISDN_SP_PRI, // ISDN SP PRI
-        TONE_CDMA_CALL_SIGNAL_ISDN_PAT3,  // ISDN Alert PAT3
-        TONE_CDMA_CALL_SIGNAL_ISDN_PING_RING, // ISDN Alert PING RING
-        TONE_CDMA_CALL_SIGNAL_ISDN_PAT5,  // ISDN Alert PAT5
-        TONE_CDMA_CALL_SIGNAL_ISDN_PAT6,  // ISDN Alert PAT6
-        TONE_CDMA_CALL_SIGNAL_ISDN_PAT7,  // ISDN Alert PAT7
-        // ISDN end
-
-        // IS54
-        TONE_CDMA_HIGH_L,  // IS54 High Pitch Long
-        TONE_CDMA_MED_L, // IS54 Med Pitch Long
-        TONE_CDMA_LOW_L, // IS54 Low Pitch Long
-        TONE_CDMA_HIGH_SS, // IS54 High Pitch Short Short
-        TONE_CDMA_MED_SS, // IS54 Medium Pitch Short Short
-        TONE_CDMA_LOW_SS, // IS54 Low Pitch Short Short
-        TONE_CDMA_HIGH_SSL, // IS54 High Pitch Short Short Long
-        TONE_CDMA_MED_SSL, // IS54 Medium  Pitch Short Short Long
-        TONE_CDMA_LOW_SSL, // IS54 Low  Pitch Short Short Long
-        TONE_CDMA_HIGH_SS_2, // IS54 High Pitch Short Short 2
-        TONE_CDMA_MED_SS_2, // IS54 Med Pitch Short Short 2
-        TONE_CDMA_LOW_SS_2, // IS54 Low  Pitch Short Short 2
-        TONE_CDMA_HIGH_SLS, // IS54 High Pitch Short Long Short
-        TONE_CDMA_MED_SLS, // IS54 Med Pitch Short Long Short
-        TONE_CDMA_LOW_SLS, // IS54 Low Pitch Short Long Short
-        TONE_CDMA_HIGH_S_X4, // IS54 High Pitch Short Short Short Short
-        TONE_CDMA_MED_S_X4, // IS54 Med Pitch Short Short Short Short
-        TONE_CDMA_LOW_S_X4, // IS54 Low Pitch Short Short Short Short
-        TONE_CDMA_HIGH_PBX_L, // PBX High Pitch Long
-        TONE_CDMA_MED_PBX_L, // PBX Med Pitch Long
-        TONE_CDMA_LOW_PBX_L, // PBX Low  Pitch Long
-        TONE_CDMA_HIGH_PBX_SS, // PBX High Short Short
-        TONE_CDMA_MED_PBX_SS, // PBX Med Short Short
-        TONE_CDMA_LOW_PBX_SS, // PBX Low  Short Short
-        TONE_CDMA_HIGH_PBX_SSL, // PBX High Short Short Long
-        TONE_CDMA_MED_PBX_SSL, // PBX Med Short Short Long
-        TONE_CDMA_LOW_PBX_SSL,  // PBX Low Short Short Long
-        TONE_CDMA_HIGH_PBX_SLS, // PBX High  SLS
-        TONE_CDMA_MED_PBX_SLS,  // PBX Med SLS
-        TONE_CDMA_LOW_PBX_SLS, // PBX Low SLS
-        TONE_CDMA_HIGH_PBX_S_X4, // PBX High SSSS
-        TONE_CDMA_MED_PBX_S_X4, // PBX Med SSSS
-        TONE_CDMA_LOW_PBX_S_X4, // PBX LOW SSSS
-        //IS54 end
-        // proprietary
-        TONE_CDMA_ALERT_NETWORK_LITE,
-        TONE_CDMA_ALERT_AUTOREDIAL_LITE,
-        TONE_CDMA_ONE_MIN_BEEP,
-        TONE_CDMA_KEYPAD_VOLUME_KEY_LITE,
-        TONE_CDMA_PRESSHOLDKEY_LITE,
-        TONE_CDMA_ALERT_INCALL_LITE,
-        TONE_CDMA_EMERGENCY_RINGBACK,
-        TONE_CDMA_ALERT_CALL_GUARD,
-        TONE_CDMA_SOFT_ERROR_LITE,
-        TONE_CDMA_CALLDROP_LITE,
-        // proprietary end
-        TONE_CDMA_NETWORK_BUSY_ONE_SHOT,
-        TONE_CDMA_ABBR_ALERT,
-        TONE_CDMA_SIGNAL_OFF,
-        //CDMA end
-        NUM_TONES,
-        NUM_SUP_TONES = LAST_SUP_TONE-FIRST_SUP_TONE+1
-    };
-
-    ToneGenerator(audio_stream_type_t streamType, float volume, bool threadCanCallJava = false);
-    ~ToneGenerator();
-
-    bool startTone(tone_type toneType, int durationMs = -1);
-    void stopTone();
-
-    bool isInited() { return (mState == TONE_IDLE)?false:true;}
-
-    // returns the audio session this ToneGenerator belongs to or 0 if an error occured.
-    int getSessionId() { return (mpAudioTrack == 0) ? 0 : mpAudioTrack->getSessionId(); }
-
-private:
-
-    enum tone_state {
-        TONE_IDLE,  // ToneGenerator is being initialized or initialization failed
-        TONE_INIT,  // ToneGenerator has been successfully initialized and is not playing
-        TONE_STARTING,  // ToneGenerator is starting playing
-        TONE_PLAYING,  // ToneGenerator is playing
-        TONE_STOPPING,  // ToneGenerator is stoping
-        TONE_STOPPED,  // ToneGenerator is stopped: the AudioTrack will be stopped
-        TONE_RESTARTING  // A start request was received in active state (playing or stopping)
-    };
-
-
-    // Region specific tones.
-    // These supervisory tones are different depending on the region (USA/CANADA, JAPAN, rest of the world).
-    // When a tone in the range [FIRST_SUP_TONE, LAST_SUP_TONE] is requested, the region is determined
-    // from system property gsm.operator.iso-country and the proper tone descriptor is selected with the
-    // help of sToneMappingTable[]
-    enum regional_tone_type {
-        // ANSI supervisory tones
-        TONE_ANSI_DIAL = NUM_TONES, // Dial tone: a continuous 350 Hz + 440 Hz tone.
-        TONE_ANSI_BUSY,             // Busy tone on:  a 480 Hz + 620 Hz tone repeated in a 500 ms on, 500 ms off cycle.
-        TONE_ANSI_CONGESTION,       // Network congestion (reorder) tone on:  a 480 Hz + 620 Hz tone repeated in a 250 ms on, 250 ms off cycle.
-        TONE_ANSI_CALL_WAITING,     // Call waiting tone on: 440 Hz, on for 300 ms, 9,7 s off followed by
-                                    // (440 Hz, on for 100 ms off for 100 ms, on for 100 ms, 9,7s off and repeated as necessary).
-        TONE_ANSI_RINGTONE,         // Ring Tone:  a 440 Hz + 480 Hz tone repeated in a 2 s on, 4 s off pattern.
-        // JAPAN Supervisory tones
-        TONE_JAPAN_DIAL,            // Dial tone: 400Hz, continuous
-        TONE_JAPAN_BUSY,            // Busy tone: 400Hz, 500ms ON, 500ms OFF...
-        TONE_JAPAN_RADIO_ACK,       // Radio path acknowlegment: 400Hz, 1s ON, 2s OFF...
-        // GB Supervisory tones
-        TONE_GB_RINGTONE,           // Ring Tone: A 400Hz + 450Hz tone repeated in a 0.4s on, 0.2s off, 0.4s on, 2.0s off pattern.
-        // AUSTRALIA Supervisory tones
-        TONE_AUSTRALIA_RINGTONE,    // Ring tone: A 400Hz + 450Hz tone repeated in a 0.4s on, 0.2s off, 0.4s on, 2.0s off pattern.
-        TONE_AUSTRALIA_BUSY,        // Busy tone: 425 Hz repeated in a 0.375s on, 0.375s off pattern.
-        TONE_AUSTRALIA_CALL_WAITING,// Call waiting tone: 425Hz tone repeated in a 0.2s on, 0.2s off, 0.2s on, 4.4s off pattern.
-        TONE_AUSTRALIA_CONGESTION,  // Congestion tone: 425Hz tone repeated in a 0.375s on, 0.375s off pattern
-        NUM_ALTERNATE_TONES
-    };
-
-    enum region {
-        ANSI,
-        JAPAN,
-        GB,
-        AUSTRALIA,
-        CEPT,
-        NUM_REGIONS
-    };
-
-    static const unsigned char sToneMappingTable[NUM_REGIONS-1][NUM_SUP_TONES];
-
-    static const unsigned int TONEGEN_MAX_WAVES = 3;     // Maximun number of sine waves in a tone segment
-    static const unsigned int TONEGEN_MAX_SEGMENTS = 12;  // Maximun number of segments in a tone descriptor
-    static const unsigned int TONEGEN_INF = 0xFFFFFFFF;  // Represents infinite time duration
-    static const CONSTEXPR float TONEGEN_GAIN = 0.9;  // Default gain passed to  WaveGenerator().
-
-    // ToneDescriptor class contains all parameters needed to generate a tone:
-    //    - The array waveFreq[]:
-    //         1 for static tone descriptors: contains the frequencies of all individual waves making the multi-tone.
-    //         2 for active tone descritors: contains the indexes of the WaveGenerator objects in mWaveGens
-    //        The number of sine waves varies from 1 to TONEGEN_MAX_WAVES.
-    //        The first null value indicates that no more waves are needed.
-    //    - The array segments[] is used to generate the tone pulses. A segment is a period of time
-    //        during which the tone is ON or OFF.    Segments with even index (starting from 0)
-    //        correspond to tone ON state and segments with odd index to OFF state.
-    //        The data stored in segments[] is the duration of the corresponding period in ms.
-    //        The first segment encountered with a 0 duration    indicates that no more segment follows.
-    //    - loopCnt - Number of times to repeat a sequence of seqments after playing this
-    //    - loopIndx - The segment index to go back and play is loopcnt > 0
-    //    - repeatCnt indicates the number of times the sequence described by segments[] array must be repeated.
-    //        When the tone generator encounters the first 0 duration segment, it will compare repeatCnt to mCurCount.
-    //        If mCurCount > repeatCnt, the tone is stopped automatically. Otherwise, tone sequence will be
-    //        restarted from segment repeatSegment.
-    //    - repeatSegment number of the first repeated segment when repeatCnt is not null
-
-    class ToneSegment {
-    public:
-        unsigned int duration;
-        unsigned short waveFreq[TONEGEN_MAX_WAVES+1];
-        unsigned short loopCnt;
-        unsigned short loopIndx;
-    };
-
-    class ToneDescriptor {
-    public:
-        ToneSegment segments[TONEGEN_MAX_SEGMENTS+1];
-        unsigned long repeatCnt;
-        unsigned long repeatSegment;
-    };
-
-    static const ToneDescriptor sToneDescriptors[];
-
-    bool mThreadCanCallJava;
-    unsigned int mTotalSmp;  // Total number of audio samples played (gives current time)
-    unsigned int mNextSegSmp;  // Position of next segment transition expressed in samples
-    // NOTE: because mTotalSmp, mNextSegSmp are stored on 32 bit, current design will operate properly
-    // only if tone duration is less than about 27 Hours(@44100Hz sampling rate). If this time is exceeded,
-    // no crash will occur but tone sequence will show a glitch.
-    unsigned int mMaxSmp;  // Maximum number of audio samples played (maximun tone duration)
-    int mDurationMs;  // Maximum tone duration in ms
-
-    unsigned short mCurSegment;  // Current segment index in ToneDescriptor segments[]
-    unsigned short mCurCount;  // Current sequence repeat count
-    volatile unsigned short mState;  // ToneGenerator state (tone_state)
-    unsigned short mRegion;
-    const ToneDescriptor *mpToneDesc;  // pointer to active tone descriptor
-    const ToneDescriptor *mpNewToneDesc;  // pointer to next active tone descriptor
-
-    unsigned short mLoopCounter; // Current tone loopback count
-
-    uint32_t mSamplingRate;  // AudioFlinger Sampling rate
-    sp<AudioTrack> mpAudioTrack;  // Pointer to audio track used for playback
-    Mutex mLock;  // Mutex to control concurent access to ToneGenerator object from audio callback and application API
-    Mutex mCbkCondLock; // Mutex associated to mWaitCbkCond
-    Condition mWaitCbkCond; // condition enabling interface to wait for audio callback completion after a change is requested
-    float mVolume;  // Volume applied to audio track
-    audio_stream_type_t mStreamType; // Audio stream used for output
-    unsigned int mProcessSize;  // Size of audio blocks generated at a time by audioCallback() (in PCM frames).
-    struct timespec mStartTime; // tone start time: needed to guaranty actual tone duration
-
-    bool initAudioTrack();
-    static void audioCallback(int event, void* user, void *info);
-    bool prepareWave();
-    unsigned int numWaves(unsigned int segmentIdx);
-    void clearWaveGens();
-    tone_type getToneForRegion(tone_type toneType);
-
-    // WaveGenerator generates a single sine wave
-    class WaveGenerator {
-    public:
-        enum gen_command {
-            WAVEGEN_START,  // Start/restart wave from phase 0
-            WAVEGEN_CONT,  // Continue wave from current phase
-            WAVEGEN_STOP  // Stop wave on zero crossing
-        };
-
-        WaveGenerator(unsigned short samplingRate, unsigned short frequency,
-                float volume);
-        ~WaveGenerator();
-
-        void getSamples(short *outBuffer, unsigned int count,
-                unsigned int command);
-
-    private:
-        static const short GEN_AMP = 32000;  // amplitude of generator
-        static const short S_Q14 = 14;  // shift for Q14
-        static const short S_Q15 = 15;  // shift for Q15
-
-        short mA1_Q14;  // Q14 coefficient
-        // delay line of full amplitude generator
-        long mS1, mS2;  // delay line S2 oldest
-        short mS2_0;  // saved value for reinitialisation
-        short mAmplitude_Q15;  // Q15 amplitude
-    };
-
-    KeyedVector<unsigned short, WaveGenerator *> mWaveGens;  // list of active wave generators.
-};
-
-}
-;  // namespace android
-
-#endif /*ANDROID_TONEGENERATOR_H_*/
diff --git a/include/media/ToneGenerator.h b/include/media/ToneGenerator.h
new file mode 120000
index 0000000..33df0e3
--- /dev/null
+++ b/include/media/ToneGenerator.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/media/ToneGenerator.h
\ No newline at end of file
diff --git a/include/media/TypeConverter.h b/include/media/TypeConverter.h
new file mode 120000
index 0000000..837af44
--- /dev/null
+++ b/include/media/TypeConverter.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/TypeConverter.h
\ No newline at end of file
diff --git a/include/media/Visualizer.h b/include/media/Visualizer.h
deleted file mode 100644
index 7bb9e8b..0000000
--- a/include/media/Visualizer.h
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_MEDIA_VISUALIZER_H
-#define ANDROID_MEDIA_VISUALIZER_H
-
-#include <media/AudioEffect.h>
-#include <audio_effects/effect_visualizer.h>
-#include <utils/Thread.h>
-
-/**
- * The Visualizer class enables application to retrieve part of the currently playing audio for
- * visualization purpose. It is not an audio recording interface and only returns partial and low
- * quality audio content. However, to protect privacy of certain audio data (e.g voice mail) the use
- * of the visualizer requires the permission android.permission.RECORD_AUDIO.
- * The audio session ID passed to the constructor indicates which audio content should be
- * visualized:
- * - If the session is 0, the audio output mix is visualized
- * - If the session is not 0, the audio from a particular MediaPlayer or AudioTrack
- *   using this audio session is visualized
- * Two types of representation of audio content can be captured:
- * - Waveform data: consecutive 8-bit (unsigned) mono samples by using the getWaveForm() method
- * - Frequency data: 8-bit magnitude FFT by using the getFft() method
- *
- * The length of the capture can be retrieved or specified by calling respectively
- * getCaptureSize() and setCaptureSize() methods. Note that the size of the FFT
- * is half of the specified capture size but both sides of the spectrum are returned yielding in a
- * number of bytes equal to the capture size. The capture size must be a power of 2 in the range
- * returned by getMinCaptureSize() and getMaxCaptureSize().
- * In addition to the polling capture mode, a callback mode is also available by installing a
- * callback function by use of the setCaptureCallBack() method. The rate at which the callback
- * is called as well as the type of data returned is specified.
- * Before capturing data, the Visualizer must be enabled by calling the setEnabled() method.
- * When data capture is not needed any more, the Visualizer should be disabled.
- */
-
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class Visualizer: public AudioEffect {
-public:
-
-    enum callback_flags {
-        CAPTURE_WAVEFORM = 0x00000001,  // capture callback returns a PCM wave form
-        CAPTURE_FFT = 0x00000002,       // apture callback returns a frequency representation
-        CAPTURE_CALL_JAVA = 0x00000004  // the callback thread can call java
-    };
-
-
-    /* Constructor.
-     * See AudioEffect constructor for details on parameters.
-     */
-                        Visualizer(const String16& opPackageName,
-                                   int32_t priority = 0,
-                                   effect_callback_t cbf = NULL,
-                                   void* user = NULL,
-                                   audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX);
-
-                        ~Visualizer();
-
-    virtual status_t    setEnabled(bool enabled);
-
-    // maximum capture size in samples
-    static uint32_t getMaxCaptureSize() { return VISUALIZER_CAPTURE_SIZE_MAX; }
-    // minimum capture size in samples
-    static uint32_t getMinCaptureSize() { return VISUALIZER_CAPTURE_SIZE_MIN; }
-    // maximum capture rate in millihertz
-    static uint32_t getMaxCaptureRate() { return CAPTURE_RATE_MAX; }
-
-    // callback used to return periodic PCM or FFT captures to the application. Either one or both
-    // types of data are returned (PCM and FFT) according to flags indicated when installing the
-    // callback. When a type of data is not present, the corresponding size (waveformSize or
-    // fftSize) is 0.
-    typedef void (*capture_cbk_t)(void* user,
-                                    uint32_t waveformSize,
-                                    uint8_t *waveform,
-                                    uint32_t fftSize,
-                                    uint8_t *fft,
-                                    uint32_t samplingrate);
-
-    // install a callback to receive periodic captures. The capture rate is specified in milliHertz
-    // and the capture format is according to flags  (see callback_flags).
-    status_t setCaptureCallBack(capture_cbk_t cbk, void* user, uint32_t flags, uint32_t rate);
-
-    // set the capture size capture size must be a power of two in the range
-    // [VISUALIZER_CAPTURE_SIZE_MAX. VISUALIZER_CAPTURE_SIZE_MIN]
-    // must be called when the visualizer is not enabled
-    status_t setCaptureSize(uint32_t size);
-    uint32_t getCaptureSize() { return mCaptureSize; }
-
-    // returns the capture rate indicated when installing the callback
-    uint32_t getCaptureRate() { return mCaptureRate; }
-
-    // returns the sampling rate of the audio being captured
-    uint32_t getSamplingRate() { return mSampleRate; }
-
-    // set the way volume affects the captured data
-    // mode must one of VISUALIZER_SCALING_MODE_NORMALIZED,
-    //  VISUALIZER_SCALING_MODE_AS_PLAYED
-    status_t setScalingMode(uint32_t mode);
-    uint32_t getScalingMode() { return mScalingMode; }
-
-    // set which measurements are done on the audio buffers processed by the effect.
-    // valid measurements (mask): MEASUREMENT_MODE_PEAK_RMS
-    status_t setMeasurementMode(uint32_t mode);
-    uint32_t getMeasurementMode() { return mMeasurementMode; }
-
-    // return a set of int32_t measurements
-    status_t getIntMeasurements(uint32_t type, uint32_t number, int32_t *measurements);
-
-    // return a capture in PCM 8 bit unsigned format. The size of the capture is equal to
-    // getCaptureSize()
-    status_t getWaveForm(uint8_t *waveform);
-
-    // return a capture in FFT 8 bit signed format. The size of the capture is equal to
-    // getCaptureSize() but the length of the FFT is half of the size (both parts of the spectrum
-    // are returned
-    status_t getFft(uint8_t *fft);
-
-protected:
-    // from IEffectClient
-    virtual void controlStatusChanged(bool controlGranted);
-
-private:
-
-    static const uint32_t CAPTURE_RATE_MAX = 20000;
-    static const uint32_t CAPTURE_RATE_DEF = 10000;
-    static const uint32_t CAPTURE_SIZE_DEF = VISUALIZER_CAPTURE_SIZE_MAX;
-
-    /* internal class to handle the callback */
-    class CaptureThread : public Thread
-    {
-    public:
-        CaptureThread(Visualizer& receiver, uint32_t captureRate, bool bCanCallJava = false);
-
-    private:
-        friend class Visualizer;
-        virtual bool        threadLoop();
-        Visualizer& mReceiver;
-        Mutex       mLock;
-        uint32_t mSleepTimeUs;
-    };
-
-    status_t doFft(uint8_t *fft, uint8_t *waveform);
-    void periodicCapture();
-    uint32_t initCaptureSize();
-
-    Mutex mCaptureLock;
-    uint32_t mCaptureRate;
-    uint32_t mCaptureSize;
-    uint32_t mSampleRate;
-    uint32_t mScalingMode;
-    uint32_t mMeasurementMode;
-    capture_cbk_t mCaptureCallBack;
-    void *mCaptureCbkUser;
-    sp<CaptureThread> mCaptureThread;
-    uint32_t mCaptureFlags;
-};
-
-
-}; // namespace android
-
-#endif // ANDROID_MEDIA_VISUALIZER_H
diff --git a/include/media/Visualizer.h b/include/media/Visualizer.h
new file mode 120000
index 0000000..ed2ec15
--- /dev/null
+++ b/include/media/Visualizer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/Visualizer.h
\ No newline at end of file
diff --git a/include/media/VolumeShaper.h b/include/media/VolumeShaper.h
new file mode 100644
index 0000000..e4c0b5b
--- /dev/null
+++ b/include/media/VolumeShaper.h
@@ -0,0 +1,1030 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_VOLUME_SHAPER_H
+#define ANDROID_VOLUME_SHAPER_H
+
+#include <cmath>
+#include <list>
+#include <math.h>
+#include <sstream>
+
+#include <binder/Parcel.h>
+#include <media/Interpolator.h>
+#include <utils/Mutex.h>
+#include <utils/RefBase.h>
+
+#pragma push_macro("LOG_TAG")
+#undef LOG_TAG
+#define LOG_TAG "VolumeShaper"
+
+// turn on VolumeShaper logging
+#if 0
+#define VS_LOG ALOGD
+#else
+#define VS_LOG(...)
+#endif
+
+namespace android {
+
+// The native VolumeShaper class mirrors the java VolumeShaper class;
+// in addition, the native class contains implementation for actual operation.
+//
+// VolumeShaper methods are not safe for multiple thread access.
+// Use VolumeHandler for thread-safe encapsulation of multiple VolumeShapers.
+//
+// Classes below written are to avoid naked pointers so there are no
+// explicit destructors required.
+
+class VolumeShaper {
+public:
+    // S and T are like template typenames (matching the Interpolator<S, T>)
+    using S = float; // time type
+    using T = float; // volume type
+
+// Curve and dimension information
+// TODO: member static const or constexpr float initialization not permitted in C++11
+#define MIN_CURVE_TIME    0.f  // type S: start of VolumeShaper curve (normalized)
+#define MAX_CURVE_TIME    1.f  // type S: end of VolumeShaper curve (normalized)
+#define MIN_LINEAR_VOLUME 0.f  // type T: silence / mute audio
+#define MAX_LINEAR_VOLUME 1.f  // type T: max volume, unity gain
+#define MAX_LOG_VOLUME    0.f  // type T: max volume, unity gain in dBFS
+
+    /* kSystemVolumeShapersMax is the maximum number of system VolumeShapers.
+     * Each system VolumeShapers has a predefined Id, which ranges from 0
+     * to kSystemVolumeShapersMax - 1 and is unique for its usage.
+     *
+     * "1" is reserved for system ducking.
+     */
+    static const int kSystemVolumeShapersMax = 16;
+
+    /* kUserVolumeShapersMax is the maximum number of application
+     * VolumeShapers for a player/track.  Application VolumeShapers are
+     * assigned on creation by the client, and have Ids ranging
+     * from kSystemVolumeShapersMax to INT32_MAX.
+     *
+     * The number of user/application volume shapers is independent to the
+     * system volume shapers. If an application tries to create more than
+     * kUserVolumeShapersMax to a player, then the apply() will fail.
+     * This prevents exhausting server side resources by a potentially malicious
+     * application.
+     */
+    static const int kUserVolumeShapersMax = 16;
+
+    /* VolumeShaper::Status is equivalent to status_t if negative
+     * but if non-negative represents the id operated on.
+     * It must be expressible as an int32_t for binder purposes.
+     */
+    using Status = status_t;
+
+    // Local definition for clamp as std::clamp is included in C++17 only.
+    // TODO: use the std::clamp version when Android build uses C++17.
+    template<typename R>
+    static constexpr const R &clamp(const R &v, const R &lo, const R &hi) {
+        return (v < lo) ? lo : (hi < v) ? hi : v;
+    }
+
+    /* VolumeShaper.Configuration derives from the Interpolator class and adds
+     * parameters relating to the volume shape.
+     *
+     * This parallels the Java implementation and the enums must match.
+     * See "frameworks/base/media/java/android/media/VolumeShaper.java" for
+     * details on the Java implementation.
+     */
+    class Configuration : public Interpolator<S, T>, public RefBase {
+    public:
+        // Must match with VolumeShaper.java in frameworks/base.
+        enum Type : int32_t {
+            TYPE_ID,
+            TYPE_SCALE,
+        };
+
+        // Must match with VolumeShaper.java in frameworks/base.
+        enum OptionFlag : int32_t {
+            OPTION_FLAG_NONE           = 0,
+            OPTION_FLAG_VOLUME_IN_DBFS = (1 << 0),
+            OPTION_FLAG_CLOCK_TIME     = (1 << 1),
+
+            OPTION_FLAG_ALL            = (OPTION_FLAG_VOLUME_IN_DBFS | OPTION_FLAG_CLOCK_TIME),
+        };
+
+        // Bring from base class; must match with VolumeShaper.java in frameworks/base.
+        using InterpolatorType = Interpolator<S, T>::InterpolatorType;
+
+        Configuration()
+            : Interpolator<S, T>()
+            , RefBase()
+            , mType(TYPE_SCALE)
+            , mOptionFlags(OPTION_FLAG_NONE)
+            , mDurationMs(1000.)
+            , mId(-1) {
+        }
+
+        explicit Configuration(const Configuration &configuration)
+            : Interpolator<S, T>(*static_cast<const Interpolator<S, T> *>(&configuration))
+            , RefBase()
+            , mType(configuration.mType)
+            , mOptionFlags(configuration.mOptionFlags)
+            , mDurationMs(configuration.mDurationMs)
+            , mId(configuration.mId) {
+        }
+
+        Type getType() const {
+            return mType;
+        }
+
+        status_t setType(Type type) {
+            switch (type) {
+            case TYPE_ID:
+            case TYPE_SCALE:
+                mType = type;
+                return NO_ERROR;
+            default:
+                ALOGE("invalid Type: %d", type);
+                return BAD_VALUE;
+            }
+        }
+
+        OptionFlag getOptionFlags() const {
+            return mOptionFlags;
+        }
+
+        status_t setOptionFlags(OptionFlag optionFlags) {
+            if ((optionFlags & ~OPTION_FLAG_ALL) != 0) {
+                ALOGE("optionFlags has invalid bits: %#x", optionFlags);
+                return BAD_VALUE;
+            }
+            mOptionFlags = optionFlags;
+            return NO_ERROR;
+        }
+
+        double getDurationMs() const {
+            return mDurationMs;
+        }
+
+        status_t setDurationMs(double durationMs) {
+            if (durationMs > 0.) {
+                mDurationMs = durationMs;
+                return NO_ERROR;
+            }
+            // zero, negative, or nan. These values not possible from Java.
+            return BAD_VALUE;
+        }
+
+        int32_t getId() const {
+            return mId;
+        }
+
+        void setId(int32_t id) {
+            // We permit a negative id here (representing invalid).
+            mId = id;
+        }
+
+        /* Adjust the volume to be in linear range from MIN_LINEAR_VOLUME to MAX_LINEAR_VOLUME
+         * and compensate for log dbFS volume as needed.
+         */
+        T adjustVolume(T volume) const {
+            if ((getOptionFlags() & OPTION_FLAG_VOLUME_IN_DBFS) != 0) {
+                const T out = powf(10.f, volume / 10.f);
+                VS_LOG("in: %f  out: %f", volume, out);
+                volume = out;
+            }
+            return clamp(volume, MIN_LINEAR_VOLUME /* lo */, MAX_LINEAR_VOLUME /* hi */);
+        }
+
+        /* Check if the existing curve is valid.
+         */
+        status_t checkCurve() const {
+            if (mType == TYPE_ID) return NO_ERROR;
+            if (this->size() < 2) {
+                ALOGE("curve must have at least 2 points");
+                return BAD_VALUE;
+            }
+            if (first().first != MIN_CURVE_TIME || last().first != MAX_CURVE_TIME) {
+                ALOGE("curve must start at MIN_CURVE_TIME and end at MAX_CURVE_TIME");
+                return BAD_VALUE;
+            }
+            if ((getOptionFlags() & OPTION_FLAG_VOLUME_IN_DBFS) != 0) {
+                for (const auto &pt : *this) {
+                    if (!(pt.second <= MAX_LOG_VOLUME) /* handle nan */) {
+                        ALOGE("positive volume dbFS");
+                        return BAD_VALUE;
+                    }
+                }
+            } else {
+                for (const auto &pt : *this) {
+                    if (!(pt.second >= MIN_LINEAR_VOLUME)
+                            || !(pt.second <= MAX_LINEAR_VOLUME) /* handle nan */) {
+                        ALOGE("volume < MIN_LINEAR_VOLUME or > MAX_LINEAR_VOLUME");
+                        return BAD_VALUE;
+                    }
+                }
+            }
+            return NO_ERROR;
+        }
+
+        /* Clamps the volume curve in the configuration to
+         * the valid range for log or linear scale.
+         */
+        void clampVolume() {
+            if ((mOptionFlags & OPTION_FLAG_VOLUME_IN_DBFS) != 0) {
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    if (!(it->second <= MAX_LOG_VOLUME) /* handle nan */) {
+                        it->second = MAX_LOG_VOLUME;
+                    }
+                }
+            } else {
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    if (!(it->second >= MIN_LINEAR_VOLUME) /* handle nan */) {
+                        it->second = MIN_LINEAR_VOLUME;
+                    } else if (!(it->second <= MAX_LINEAR_VOLUME)) {
+                        it->second = MAX_LINEAR_VOLUME;
+                    }
+                }
+            }
+        }
+
+        /* scaleToStartVolume() is used to set the start volume of a
+         * new VolumeShaper curve, when replacing one VolumeShaper
+         * with another using the "join" (volume match) option.
+         *
+         * It works best for monotonic volume ramps or ducks.
+         */
+        void scaleToStartVolume(T volume) {
+            if (this->size() < 2) {
+                return;
+            }
+            const T startVolume = first().second;
+            const T endVolume = last().second;
+            if (endVolume == startVolume) {
+                // match with linear ramp
+                const T offset = volume - startVolume;
+                static const T scale =  1.f / (MAX_CURVE_TIME - MIN_CURVE_TIME); // nominally 1.f
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    it->second = it->second + offset * (MAX_CURVE_TIME - it->first) * scale;
+                }
+            } else {
+                const T  scale = (volume - endVolume) / (startVolume - endVolume);
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    it->second = scale * (it->second - endVolume) + endVolume;
+                }
+            }
+            clampVolume();
+        }
+
+        // The parcel layout must match VolumeShaper.java
+        status_t writeToParcel(Parcel *parcel) const {
+            if (parcel == nullptr) return BAD_VALUE;
+            return parcel->writeInt32((int32_t)mType)
+                    ?: parcel->writeInt32(mId)
+                    ?: mType == TYPE_ID
+                        ? NO_ERROR
+                        : parcel->writeInt32((int32_t)mOptionFlags)
+                            ?: parcel->writeDouble(mDurationMs)
+                            ?: Interpolator<S, T>::writeToParcel(parcel);
+        }
+
+        status_t readFromParcel(const Parcel &parcel) {
+            int32_t type, optionFlags;
+            return parcel.readInt32(&type)
+                    ?: setType((Type)type)
+                    ?: parcel.readInt32(&mId)
+                    ?: mType == TYPE_ID
+                        ? NO_ERROR
+                        : parcel.readInt32(&optionFlags)
+                            ?: setOptionFlags((OptionFlag)optionFlags)
+                            ?: parcel.readDouble(&mDurationMs)
+                            ?: Interpolator<S, T>::readFromParcel(parcel)
+                            ?: checkCurve();
+        }
+
+        // Returns a string for debug printing.
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "VolumeShaper::Configuration{mType=" << static_cast<int32_t>(mType);
+            ss << ", mId=" << mId;
+            if (mType != TYPE_ID) {
+                ss << ", mOptionFlags=" << static_cast<int32_t>(mOptionFlags);
+                ss << ", mDurationMs=" << mDurationMs;
+                ss << ", " << Interpolator<S, T>::toString().c_str();
+            }
+            ss << "}";
+            return ss.str();
+        }
+
+    private:
+        Type mType;              // type of configuration
+        int32_t mId;             // A valid id is >= 0.
+        OptionFlag mOptionFlags; // option flags for the configuration.
+        double mDurationMs;      // duration, must be > 0; default is 1000 ms.
+    }; // Configuration
+
+    /* VolumeShaper::Operation expresses an operation to perform on the
+     * configuration (either explicitly specified or an id).
+     *
+     * This parallels the Java implementation and the enums must match.
+     * See "frameworks/base/media/java/android/media/VolumeShaper.java" for
+     * details on the Java implementation.
+     */
+    class Operation : public RefBase {
+    public:
+        // Must match with VolumeShaper.java.
+        enum Flag : int32_t {
+            FLAG_NONE      = 0,
+            FLAG_REVERSE   = (1 << 0), // the absence of this indicates "play"
+            FLAG_TERMINATE = (1 << 1),
+            FLAG_JOIN      = (1 << 2),
+            FLAG_DELAY     = (1 << 3),
+            FLAG_CREATE_IF_NECESSARY = (1 << 4),
+
+            FLAG_ALL       = (FLAG_REVERSE | FLAG_TERMINATE | FLAG_JOIN | FLAG_DELAY
+                            | FLAG_CREATE_IF_NECESSARY),
+        };
+
+        Operation()
+            : Operation(FLAG_NONE, -1 /* replaceId */) {
+        }
+
+        Operation(Flag flags, int replaceId)
+            : Operation(flags, replaceId, std::numeric_limits<S>::quiet_NaN() /* xOffset */) {
+        }
+
+        explicit Operation(const Operation &operation)
+            : Operation(operation.mFlags, operation.mReplaceId, operation.mXOffset) {
+        }
+
+        explicit Operation(const sp<Operation> &operation)
+            : Operation(*operation.get()) {
+        }
+
+        Operation(Flag flags, int replaceId, S xOffset)
+            : mFlags(flags)
+            , mReplaceId(replaceId)
+            , mXOffset(xOffset) {
+        }
+
+        int32_t getReplaceId() const {
+            return mReplaceId;
+        }
+
+        void setReplaceId(int32_t replaceId) {
+            mReplaceId = replaceId;
+        }
+
+        S getXOffset() const {
+            return mXOffset;
+        }
+
+        void setXOffset(S xOffset) {
+            mXOffset = clamp(xOffset, MIN_CURVE_TIME /* lo */, MAX_CURVE_TIME /* hi */);
+        }
+
+        Flag getFlags() const {
+            return mFlags;
+        }
+
+        /* xOffset is the position on the volume curve and may go backwards
+         * if you are in reverse mode. This must be in the range from
+         * [MIN_CURVE_TIME, MAX_CURVE_TIME].
+         *
+         * normalizedTime always increases as time or framecount increases.
+         * normalizedTime is nominally from MIN_CURVE_TIME to MAX_CURVE_TIME when
+         * running through the curve, but could be outside this range afterwards.
+         * If you are reversing, this means the position on the curve, or xOffset,
+         * is computed as MAX_CURVE_TIME - normalizedTime, clamped to
+         * [MIN_CURVE_TIME, MAX_CURVE_TIME].
+         */
+        void setNormalizedTime(S normalizedTime) {
+            setXOffset((mFlags & FLAG_REVERSE) != 0
+                    ? MAX_CURVE_TIME - normalizedTime : normalizedTime);
+        }
+
+        status_t setFlags(Flag flags) {
+            if ((flags & ~FLAG_ALL) != 0) {
+                ALOGE("flags has invalid bits: %#x", flags);
+                return BAD_VALUE;
+            }
+            mFlags = flags;
+            return NO_ERROR;
+        }
+
+        status_t writeToParcel(Parcel *parcel) const {
+            if (parcel == nullptr) return BAD_VALUE;
+            return parcel->writeInt32((int32_t)mFlags)
+                    ?: parcel->writeInt32(mReplaceId)
+                    ?: parcel->writeFloat(mXOffset);
+        }
+
+        status_t readFromParcel(const Parcel &parcel) {
+            int32_t flags;
+            return parcel.readInt32(&flags)
+                    ?: parcel.readInt32(&mReplaceId)
+                    ?: parcel.readFloat(&mXOffset)
+                    ?: setFlags((Flag)flags);
+        }
+
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "VolumeShaper::Operation{mFlags=" << static_cast<int32_t>(mFlags) ;
+            ss << ", mReplaceId=" << mReplaceId;
+            ss << ", mXOffset=" << mXOffset;
+            ss << "}";
+            return ss.str();
+        }
+
+    private:
+        Flag mFlags;        // operation to do
+        int32_t mReplaceId; // if >= 0 the id to remove in a replace operation.
+        S mXOffset;         // position in the curve to set if a valid number (not nan)
+    }; // Operation
+
+    /* VolumeShaper.State is returned when requesting the last
+     * state of the VolumeShaper.
+     *
+     * This parallels the Java implementation.
+     * See "frameworks/base/media/java/android/media/VolumeShaper.java" for
+     * details on the Java implementation.
+     */
+    class State : public RefBase {
+    public:
+        State(T volume, S xOffset)
+            : mVolume(volume)
+            , mXOffset(xOffset) {
+        }
+
+        State()
+            : State(NAN, NAN) { }
+
+        T getVolume() const {
+            return mVolume;
+        }
+
+        void setVolume(T volume) {
+            mVolume = volume;
+        }
+
+        S getXOffset() const {
+            return mXOffset;
+        }
+
+        void setXOffset(S xOffset) {
+            mXOffset = xOffset;
+        }
+
+        status_t writeToParcel(Parcel *parcel) const {
+            if (parcel == nullptr) return BAD_VALUE;
+            return parcel->writeFloat(mVolume)
+                    ?: parcel->writeFloat(mXOffset);
+        }
+
+        status_t readFromParcel(const Parcel &parcel) {
+            return parcel.readFloat(&mVolume)
+                     ?: parcel.readFloat(&mXOffset);
+        }
+
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "VolumeShaper::State{mVolume=" << mVolume;
+            ss << ", mXOffset=" << mXOffset;
+            ss << "}";
+            return ss.str();
+        }
+
+    private:
+        T mVolume;   // linear volume in the range MIN_LINEAR_VOLUME to MAX_LINEAR_VOLUME
+        S mXOffset;  // position on curve expressed from MIN_CURVE_TIME to MAX_CURVE_TIME
+    }; // State
+
+    // Internal helper class to do an affine transform for time and amplitude scaling.
+    template <typename R>
+    class Translate {
+    public:
+        Translate()
+            : mOffset(0)
+            , mScale(1) {
+        }
+
+        R getOffset() const {
+            return mOffset;
+        }
+
+        void setOffset(R offset) {
+            mOffset = offset;
+        }
+
+        R getScale() const {
+            return mScale;
+        }
+
+        void setScale(R scale) {
+            mScale = scale;
+        }
+
+        R operator()(R in) const {
+            return mScale * (in - mOffset);
+        }
+
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "VolumeShaper::Translate{mOffset=" << mOffset;
+            ss << ", mScale=" << mScale;
+            ss << "}";
+            return ss.str();
+        }
+
+    private:
+        R mOffset;
+        R mScale;
+    }; // Translate
+
+    static int64_t convertTimespecToUs(const struct timespec &tv)
+    {
+        return tv.tv_sec * 1000000ll + tv.tv_nsec / 1000;
+    }
+
+    // current monotonic time in microseconds.
+    static int64_t getNowUs()
+    {
+        struct timespec tv;
+        if (clock_gettime(CLOCK_MONOTONIC, &tv) != 0) {
+            return 0; // system is really sick, just return 0 for consistency.
+        }
+        return convertTimespecToUs(tv);
+    }
+
+    /* Native implementation of VolumeShaper.  This is NOT mirrored
+     * on the Java side, so we don't need to mimic Java side layout
+     * and data; furthermore, this isn't refcounted as a "RefBase" object.
+     *
+     * Since we pass configuration and operation as shared pointers (like
+     * Java) there is a potential risk that the caller may modify
+     * these after delivery.
+     */
+    VolumeShaper(
+            const sp<VolumeShaper::Configuration> &configuration,
+            const sp<VolumeShaper::Operation> &operation)
+        : mConfiguration(configuration) // we do not make a copy
+        , mOperation(operation)         // ditto
+        , mStartFrame(-1)
+        , mLastVolume(T(1))
+        , mLastXOffset(MIN_CURVE_TIME)
+        , mDelayXOffset(MIN_CURVE_TIME) {
+        if (configuration.get() != nullptr
+                && (getFlags() & VolumeShaper::Operation::FLAG_DELAY) == 0) {
+            mLastVolume = configuration->first().second;
+        }
+    }
+
+    // We allow a null operation here, though VolumeHandler always provides one.
+    VolumeShaper::Operation::Flag getFlags() const {
+        return mOperation == nullptr
+                ? VolumeShaper::Operation::FLAG_NONE : mOperation->getFlags();
+    }
+
+    /* Returns the last volume and xoffset reported to the AudioFlinger.
+     * If the VolumeShaper has not been started, compute what the volume
+     * should be based on the initial offset specified.
+     */
+    sp<VolumeShaper::State> getState() const {
+        if (!isStarted()) {
+            const T volume = computeVolumeFromXOffset(mDelayXOffset);
+            VS_LOG("delayed VolumeShaper, using cached offset:%f for volume:%f",
+                    mDelayXOffset, volume);
+            return new VolumeShaper::State(volume, mDelayXOffset);
+        } else {
+            return new VolumeShaper::State(mLastVolume, mLastXOffset);
+        }
+    }
+
+    S getDelayXOffset() const {
+        return mDelayXOffset;
+    }
+
+    void setDelayXOffset(S xOffset) {
+        mDelayXOffset = clamp(xOffset, MIN_CURVE_TIME /* lo */, MAX_CURVE_TIME /* hi */);
+    }
+
+    bool isStarted() const {
+        return mStartFrame >= 0;
+    }
+
+    /* getVolume() updates the last volume/xoffset state so it is not
+     * const, even though logically it may be viewed as const.
+     */
+    std::pair<T /* volume */, bool /* active */> getVolume(
+            int64_t trackFrameCount, double trackSampleRate) {
+        if ((getFlags() & VolumeShaper::Operation::FLAG_DELAY) != 0) {
+            // We haven't had PLAY called yet, so just return the value
+            // as if PLAY were called just now.
+            VS_LOG("delayed VolumeShaper, using cached offset %f", mDelayXOffset);
+            const T volume = computeVolumeFromXOffset(mDelayXOffset);
+            return std::make_pair(volume, false);
+        }
+        const bool clockTime = (mConfiguration->getOptionFlags()
+                & VolumeShaper::Configuration::OPTION_FLAG_CLOCK_TIME) != 0;
+        const int64_t frameCount = clockTime ? getNowUs() : trackFrameCount;
+        const double sampleRate = clockTime ? 1000000 : trackSampleRate;
+
+        if (mStartFrame < 0) {
+            updatePosition(frameCount, sampleRate, mDelayXOffset);
+            mStartFrame = frameCount;
+        }
+        VS_LOG("frameCount: %lld", (long long)frameCount);
+        const S x = mXTranslate((T)frameCount);
+        VS_LOG("translation to normalized time: %f", x);
+
+        std::tuple<T /* volume */, S /* position */, bool /* active */> vt =
+                computeStateFromNormalizedTime(x);
+
+        mLastVolume = std::get<0>(vt);
+        mLastXOffset = std::get<1>(vt);
+        const bool active = std::get<2>(vt);
+        VS_LOG("rescaled time:%f  volume:%f  xOffset:%f  active:%s",
+                x, mLastVolume, mLastXOffset, active ? "true" : "false");
+        return std::make_pair(mLastVolume, active);
+    }
+
+    std::string toString() const {
+        std::stringstream ss;
+        ss << "VolumeShaper{mStartFrame=" << mStartFrame;
+        ss << ", mXTranslate=" << mXTranslate.toString().c_str();
+        ss << ", mConfiguration=" <<
+                (mConfiguration.get() == nullptr
+                        ? "nullptr" : mConfiguration->toString().c_str());
+        ss << ", mOperation=" <<
+                (mOperation.get() == nullptr
+                        ? "nullptr" :  mOperation->toString().c_str());
+        ss << "}";
+        return ss.str();
+    }
+
+    Translate<S> mXTranslate; // translation from frames (usec for clock time) to normalized time.
+    sp<VolumeShaper::Configuration> mConfiguration;
+    sp<VolumeShaper::Operation> mOperation;
+
+private:
+    int64_t mStartFrame; // starting frame, non-negative when started (in usec for clock time)
+    T mLastVolume;       // last computed interpolated volume (y-axis)
+    S mLastXOffset;      // last computed interpolated xOffset/time (x-axis)
+    S mDelayXOffset;     // xOffset to use for first invocation of VolumeShaper.
+
+    // Called internally to adjust mXTranslate for first time start.
+    void updatePosition(int64_t startFrame, double sampleRate, S xOffset) {
+        double scale = (mConfiguration->last().first - mConfiguration->first().first)
+                        / (mConfiguration->getDurationMs() * 0.001 * sampleRate);
+        const double minScale = 1. / static_cast<double>(INT64_MAX);
+        scale = std::max(scale, minScale);
+        VS_LOG("update position: scale %lf  frameCount:%lld, sampleRate:%lf, xOffset:%f",
+                scale, (long long) startFrame, sampleRate, xOffset);
+
+        S normalizedTime = (getFlags() & VolumeShaper::Operation::FLAG_REVERSE) != 0 ?
+                MAX_CURVE_TIME - xOffset : xOffset;
+        mXTranslate.setOffset(static_cast<float>(static_cast<double>(startFrame)
+                                                 - static_cast<double>(normalizedTime) / scale));
+        mXTranslate.setScale(static_cast<float>(scale));
+        VS_LOG("translate: %s", mXTranslate.toString().c_str());
+    }
+
+    T computeVolumeFromXOffset(S xOffset) const {
+        const T unscaledVolume = mConfiguration->findY(xOffset);
+        const T volume = mConfiguration->adjustVolume(unscaledVolume); // handle log scale
+        VS_LOG("computeVolumeFromXOffset %f -> %f -> %f", xOffset, unscaledVolume, volume);
+        return volume;
+    }
+
+    std::tuple<T /* volume */, S /* position */, bool /* active */>
+    computeStateFromNormalizedTime(S x) const {
+        bool active = true;
+        // handle reversal of position
+        if (getFlags() & VolumeShaper::Operation::FLAG_REVERSE) {
+            x = MAX_CURVE_TIME - x;
+            VS_LOG("reversing to %f", x);
+            if (x < MIN_CURVE_TIME) {
+                x = MIN_CURVE_TIME;
+                active = false; // at the end
+            } else if (x > MAX_CURVE_TIME) {
+                x = MAX_CURVE_TIME; //early
+            }
+        } else {
+            if (x < MIN_CURVE_TIME) {
+                x = MIN_CURVE_TIME; // early
+            } else if (x > MAX_CURVE_TIME) {
+                x = MAX_CURVE_TIME;
+                active = false; // at end
+            }
+        }
+        const S xOffset = x;
+        const T volume = computeVolumeFromXOffset(xOffset);
+        return std::make_tuple(volume, xOffset, active);
+    }
+}; // VolumeShaper
+
+/* VolumeHandler combines the volume factors of multiple VolumeShapers associated
+ * with a player.  It is thread safe by synchronizing all public methods.
+ *
+ * This is a native-only implementation.
+ *
+ * The server side VolumeHandler is used to maintain a list of volume handlers,
+ * keep state, and obtain volume.
+ *
+ * The client side VolumeHandler is used to maintain a list of volume handlers,
+ * keep some partial state, and restore if the server dies.
+ */
+class VolumeHandler : public RefBase {
+public:
+    using S = float;
+    using T = float;
+
+    // A volume handler which just keeps track of active VolumeShapers does not need sampleRate.
+    VolumeHandler()
+        : VolumeHandler(0 /* sampleRate */) {
+    }
+
+    explicit VolumeHandler(uint32_t sampleRate)
+        : mSampleRate((double)sampleRate)
+        , mLastFrame(0)
+        , mVolumeShaperIdCounter(VolumeShaper::kSystemVolumeShapersMax)
+        , mLastVolume(1.f, false) {
+    }
+
+    VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration> &configuration,
+            const sp<VolumeShaper::Operation> &operation_in) {
+        // make a local copy of operation, as we modify it.
+        sp<VolumeShaper::Operation> operation(new VolumeShaper::Operation(operation_in));
+        VS_LOG("applyVolumeShaper:configuration: %s", configuration->toString().c_str());
+        VS_LOG("applyVolumeShaper:operation: %s", operation->toString().c_str());
+        AutoMutex _l(mLock);
+        if (configuration == nullptr) {
+            ALOGE("null configuration");
+            return VolumeShaper::Status(BAD_VALUE);
+        }
+        if (operation == nullptr) {
+            ALOGE("null operation");
+            return VolumeShaper::Status(BAD_VALUE);
+        }
+        const int32_t id = configuration->getId();
+        if (id < 0) {
+            ALOGE("negative id: %d", id);
+            return VolumeShaper::Status(BAD_VALUE);
+        }
+        VS_LOG("applyVolumeShaper id: %d", id);
+
+        switch (configuration->getType()) {
+        case VolumeShaper::Configuration::TYPE_SCALE: {
+            const int replaceId = operation->getReplaceId();
+            if (replaceId >= 0) {
+                VS_LOG("replacing %d", replaceId);
+                auto replaceIt = findId_l(replaceId);
+                if (replaceIt == mVolumeShapers.end()) {
+                    ALOGW("cannot find replace id: %d", replaceId);
+                } else {
+                    if ((operation->getFlags() & VolumeShaper::Operation::FLAG_JOIN) != 0) {
+                        // For join, we scale the start volume of the current configuration
+                        // to match the last-used volume of the replacing VolumeShaper.
+                        auto state = replaceIt->getState();
+                        ALOGD("join: state:%s", state->toString().c_str());
+                        if (state->getXOffset() >= 0) { // valid
+                            const T volume = state->getVolume();
+                            ALOGD("join: scaling start volume to %f", volume);
+                            configuration->scaleToStartVolume(volume);
+                        }
+                    }
+                    (void)mVolumeShapers.erase(replaceIt);
+                }
+                operation->setReplaceId(-1);
+            }
+            // check if we have another of the same id.
+            auto oldIt = findId_l(id);
+            if (oldIt != mVolumeShapers.end()) {
+                if ((operation->getFlags()
+                        & VolumeShaper::Operation::FLAG_CREATE_IF_NECESSARY) != 0) {
+                    // TODO: move the case to a separate function.
+                    goto HANDLE_TYPE_ID; // no need to create, take over existing id.
+                }
+                ALOGW("duplicate id, removing old %d", id);
+                (void)mVolumeShapers.erase(oldIt);
+            }
+
+            /* Check if too many application VolumeShapers (with id >= kSystemVolumeShapersMax).
+             * We check on the server side to ensure synchronization and robustness.
+             *
+             * This shouldn't fail on a replace command unless the replaced id is
+             * already invalid (which *should* be checked in the Java layer).
+             */
+            if (id >= VolumeShaper::kSystemVolumeShapersMax
+                    && numberOfUserVolumeShapers_l() >= VolumeShaper::kUserVolumeShapersMax) {
+                ALOGW("Too many app VolumeShapers, cannot add to VolumeHandler");
+                return VolumeShaper::Status(INVALID_OPERATION);
+            }
+
+            // create new VolumeShaper with default behavior.
+            mVolumeShapers.emplace_back(configuration, new VolumeShaper::Operation());
+            VS_LOG("after adding, number of volumeShapers:%zu", mVolumeShapers.size());
+        }
+        // fall through to handle the operation
+        HANDLE_TYPE_ID:
+        case VolumeShaper::Configuration::TYPE_ID: {
+            VS_LOG("trying to find id: %d", id);
+            auto it = findId_l(id);
+            if (it == mVolumeShapers.end()) {
+                VS_LOG("couldn't find id: %d", id);
+                return VolumeShaper::Status(INVALID_OPERATION);
+            }
+            if ((operation->getFlags() & VolumeShaper::Operation::FLAG_TERMINATE) != 0) {
+                VS_LOG("terminate id: %d", id);
+                mVolumeShapers.erase(it);
+                break;
+            }
+            const bool clockTime = (it->mConfiguration->getOptionFlags()
+                    & VolumeShaper::Configuration::OPTION_FLAG_CLOCK_TIME) != 0;
+            if ((it->getFlags() & VolumeShaper::Operation::FLAG_REVERSE) !=
+                    (operation->getFlags() & VolumeShaper::Operation::FLAG_REVERSE)) {
+                if (it->isStarted()) {
+                    const int64_t frameCount = clockTime ? VolumeShaper::getNowUs() : mLastFrame;
+                    const S x = it->mXTranslate((T)frameCount);
+                    VS_LOG("reverse normalizedTime: %f", x);
+                    // reflect position
+                    S target = MAX_CURVE_TIME - x;
+                    if (target < MIN_CURVE_TIME) {
+                        VS_LOG("clamp to start - begin immediately");
+                        target = MIN_CURVE_TIME;
+                    }
+                    VS_LOG("reverse normalizedTime target: %f", target);
+                    it->mXTranslate.setOffset(it->mXTranslate.getOffset()
+                            + (x - target) / it->mXTranslate.getScale());
+                }
+                // if not started, the delay offset doesn't change.
+            }
+            const S xOffset = operation->getXOffset();
+            if (!std::isnan(xOffset)) {
+                if (it->isStarted()) {
+                    const int64_t frameCount = clockTime ? VolumeShaper::getNowUs() : mLastFrame;
+                    const S x = it->mXTranslate((T)frameCount);
+                    VS_LOG("normalizedTime translation: %f", x);
+                    const S target =
+                            (operation->getFlags() & VolumeShaper::Operation::FLAG_REVERSE) != 0 ?
+                                    MAX_CURVE_TIME - xOffset : xOffset;
+                    VS_LOG("normalizedTime target x offset: %f", target);
+                    it->mXTranslate.setOffset(it->mXTranslate.getOffset()
+                            + (x - target) / it->mXTranslate.getScale());
+                } else {
+                    it->setDelayXOffset(xOffset);
+                }
+            }
+            it->mOperation = operation; // replace the operation
+        } break;
+        }
+        return VolumeShaper::Status(id);
+    }
+
+    sp<VolumeShaper::State> getVolumeShaperState(int id) {
+        AutoMutex _l(mLock);
+        auto it = findId_l(id);
+        if (it == mVolumeShapers.end()) {
+            VS_LOG("cannot find state for id: %d", id);
+            return nullptr;
+        }
+        return it->getState();
+    }
+
+    /* getVolume() is not const, as it updates internal state.
+     * Once called, any VolumeShapers not already started begin running.
+     */
+    std::pair<T /* volume */, bool /* active */> getVolume(int64_t trackFrameCount) {
+        AutoMutex _l(mLock);
+        mLastFrame = trackFrameCount;
+        T volume(1);
+        size_t activeCount = 0;
+        for (auto it = mVolumeShapers.begin(); it != mVolumeShapers.end();) {
+            const std::pair<T, bool> shaperVolume =
+                    it->getVolume(trackFrameCount, mSampleRate);
+            volume *= shaperVolume.first;
+            activeCount += shaperVolume.second;
+            ++it;
+        }
+        mLastVolume = std::make_pair(volume, activeCount != 0);
+        VS_LOG("getVolume: <%f, %s>", mLastVolume.first, mLastVolume.second ? "true" : "false");
+        return mLastVolume;
+    }
+
+    /* Used by a client side VolumeHandler to ensure all the VolumeShapers
+     * indicate that they have been started.  Upon a change in audioserver
+     * output sink, this information is used for restoration of the server side
+     * VolumeHandler.
+     */
+    void setStarted() {
+        (void)getVolume(mLastFrame);  // getVolume() will start the individual VolumeShapers.
+    }
+
+    std::pair<T /* volume */, bool /* active */> getLastVolume() const {
+        AutoMutex _l(mLock);
+        return mLastVolume;
+    }
+
+    std::string toString() const {
+        AutoMutex _l(mLock);
+        std::stringstream ss;
+        ss << "VolumeHandler{mSampleRate=" << mSampleRate;
+        ss << ", mLastFrame=" << mLastFrame;
+        ss << ", mVolumeShapers={";
+        bool first = true;
+        for (const auto &shaper : mVolumeShapers) {
+            if (first) {
+                first = false;
+            } else {
+                ss << ", ";
+            }
+            ss << shaper.toString().c_str();
+        }
+        ss << "}}";
+        return ss.str();
+    }
+
+    void forall(const std::function<VolumeShaper::Status (const VolumeShaper &)> &lambda) {
+        AutoMutex _l(mLock);
+        VS_LOG("forall: mVolumeShapers.size() %zu", mVolumeShapers.size());
+        for (const auto &shaper : mVolumeShapers) {
+            VolumeShaper::Status status = lambda(shaper);
+            VS_LOG("forall applying lambda on shaper (%p): %d", &shaper, (int)status);
+        }
+    }
+
+    void reset() {
+        AutoMutex _l(mLock);
+        mVolumeShapers.clear();
+        mLastFrame = 0;
+        // keep mVolumeShaperIdCounter as is.
+    }
+
+    /* Sets the configuration id if necessary - This is based on the counter
+     * internal to the VolumeHandler.
+     */
+    void setIdIfNecessary(const sp<VolumeShaper::Configuration> &configuration) {
+        if (configuration->getType() == VolumeShaper::Configuration::TYPE_SCALE) {
+            const int id = configuration->getId();
+            if (id == -1) {
+                // Reassign to a unique id, skipping system ids.
+                AutoMutex _l(mLock);
+                while (true) {
+                    if (mVolumeShaperIdCounter == INT32_MAX) {
+                        mVolumeShaperIdCounter = VolumeShaper::kSystemVolumeShapersMax;
+                    } else {
+                        ++mVolumeShaperIdCounter;
+                    }
+                    if (findId_l(mVolumeShaperIdCounter) != mVolumeShapers.end()) {
+                        continue; // collision with an existing id.
+                    }
+                    configuration->setId(mVolumeShaperIdCounter);
+                    ALOGD("setting id to %d", mVolumeShaperIdCounter);
+                    break;
+                }
+            }
+        }
+    }
+
+private:
+    std::list<VolumeShaper>::iterator findId_l(int32_t id) {
+        std::list<VolumeShaper>::iterator it = mVolumeShapers.begin();
+        for (; it != mVolumeShapers.end(); ++it) {
+            if (it->mConfiguration->getId() == id) {
+                break;
+            }
+        }
+        return it;
+    }
+
+    size_t numberOfUserVolumeShapers_l() const {
+        size_t count = 0;
+        for (const auto &shaper : mVolumeShapers) {
+            count += (shaper.mConfiguration->getId() >= VolumeShaper::kSystemVolumeShapersMax);
+        }
+        return count;
+    }
+
+    mutable Mutex mLock;
+    double mSampleRate; // in samples (frames) per second
+    int64_t mLastFrame; // logging purpose only, 0 on start
+    int32_t mVolumeShaperIdCounter; // a counter to return a unique volume shaper id.
+    std::pair<T /* volume */, bool /* active */> mLastVolume;
+    std::list<VolumeShaper> mVolumeShapers; // list provides stable iterators on erase
+}; // VolumeHandler
+
+} // namespace android
+
+#pragma pop_macro("LOG_TAG")
+
+#endif // ANDROID_VOLUME_SHAPER_H
diff --git a/include/media/audiohal b/include/media/audiohal
new file mode 120000
index 0000000..37e2c39
--- /dev/null
+++ b/include/media/audiohal
@@ -0,0 +1 @@
+../../media/libaudiohal/include
\ No newline at end of file
diff --git a/include/media/convert.h b/include/media/convert.h
new file mode 120000
index 0000000..cb0d00d
--- /dev/null
+++ b/include/media/convert.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/convert.h
\ No newline at end of file
diff --git a/include/media/mediametadataretriever.h b/include/media/mediametadataretriever.h
new file mode 120000
index 0000000..b401bab
--- /dev/null
+++ b/include/media/mediametadataretriever.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/mediametadataretriever.h
\ No newline at end of file
diff --git a/include/media/mediaplayer.h b/include/media/mediaplayer.h
deleted file mode 100644
index cec9d99..0000000
--- a/include/media/mediaplayer.h
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_MEDIAPLAYER_H
-#define ANDROID_MEDIAPLAYER_H
-
-#include <arpa/inet.h>
-
-#include <binder/IMemory.h>
-
-#include <media/AudioResamplerPublic.h>
-#include <media/IMediaPlayerClient.h>
-#include <media/IMediaPlayer.h>
-#include <media/IMediaDeathNotifier.h>
-#include <media/IStreamSource.h>
-
-#include <utils/KeyedVector.h>
-#include <utils/String8.h>
-
-class ANativeWindow;
-
-namespace android {
-
-struct AVSyncSettings;
-class IGraphicBufferProducer;
-class Surface;
-
-enum media_event_type {
-    MEDIA_NOP               = 0, // interface test message
-    MEDIA_PREPARED          = 1,
-    MEDIA_PLAYBACK_COMPLETE = 2,
-    MEDIA_BUFFERING_UPDATE  = 3,
-    MEDIA_SEEK_COMPLETE     = 4,
-    MEDIA_SET_VIDEO_SIZE    = 5,
-    MEDIA_STARTED           = 6,
-    MEDIA_PAUSED            = 7,
-    MEDIA_STOPPED           = 8,
-    MEDIA_SKIPPED           = 9,
-    MEDIA_TIMED_TEXT        = 99,
-    MEDIA_ERROR             = 100,
-    MEDIA_INFO              = 200,
-    MEDIA_SUBTITLE_DATA     = 201,
-    MEDIA_META_DATA         = 202,
-};
-
-// Generic error codes for the media player framework.  Errors are fatal, the
-// playback must abort.
-//
-// Errors are communicated back to the client using the
-// MediaPlayerListener::notify method defined below.
-// In this situation, 'notify' is invoked with the following:
-//   'msg' is set to MEDIA_ERROR.
-//   'ext1' should be a value from the enum media_error_type.
-//   'ext2' contains an implementation dependant error code to provide
-//          more details. Should default to 0 when not used.
-//
-// The codes are distributed as follow:
-//   0xx: Reserved
-//   1xx: Android Player errors. Something went wrong inside the MediaPlayer.
-//   2xx: Media errors (e.g Codec not supported). There is a problem with the
-//        media itself.
-//   3xx: Runtime errors. Some extraordinary condition arose making the playback
-//        impossible.
-//
-enum media_error_type {
-    // 0xx
-    MEDIA_ERROR_UNKNOWN = 1,
-    // 1xx
-    MEDIA_ERROR_SERVER_DIED = 100,
-    // 2xx
-    MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200,
-    // 3xx
-};
-
-
-// Info and warning codes for the media player framework.  These are non fatal,
-// the playback is going on but there might be some user visible issues.
-//
-// Info and warning messages are communicated back to the client using the
-// MediaPlayerListener::notify method defined below.  In this situation,
-// 'notify' is invoked with the following:
-//   'msg' is set to MEDIA_INFO.
-//   'ext1' should be a value from the enum media_info_type.
-//   'ext2' contains an implementation dependant info code to provide
-//          more details. Should default to 0 when not used.
-//
-// The codes are distributed as follow:
-//   0xx: Reserved
-//   7xx: Android Player info/warning (e.g player lagging behind.)
-//   8xx: Media info/warning (e.g media badly interleaved.)
-//
-enum media_info_type {
-    // 0xx
-    MEDIA_INFO_UNKNOWN = 1,
-    // The player was started because it was used as the next player for another
-    // player, which just completed playback
-    MEDIA_INFO_STARTED_AS_NEXT = 2,
-    // The player just pushed the very first video frame for rendering
-    MEDIA_INFO_RENDERING_START = 3,
-    // 7xx
-    // The video is too complex for the decoder: it can't decode frames fast
-    // enough. Possibly only the audio plays fine at this stage.
-    MEDIA_INFO_VIDEO_TRACK_LAGGING = 700,
-    // MediaPlayer is temporarily pausing playback internally in order to
-    // buffer more data.
-    MEDIA_INFO_BUFFERING_START = 701,
-    // MediaPlayer is resuming playback after filling buffers.
-    MEDIA_INFO_BUFFERING_END = 702,
-    // Bandwidth in recent past
-    MEDIA_INFO_NETWORK_BANDWIDTH = 703,
-
-    // 8xx
-    // Bad interleaving means that a media has been improperly interleaved or not
-    // interleaved at all, e.g has all the video samples first then all the audio
-    // ones. Video is playing but a lot of disk seek may be happening.
-    MEDIA_INFO_BAD_INTERLEAVING = 800,
-    // The media is not seekable (e.g live stream).
-    MEDIA_INFO_NOT_SEEKABLE = 801,
-    // New media metadata is available.
-    MEDIA_INFO_METADATA_UPDATE = 802,
-
-    //9xx
-    MEDIA_INFO_TIMED_TEXT_ERROR = 900,
-};
-
-
-
-enum media_player_states {
-    MEDIA_PLAYER_STATE_ERROR        = 0,
-    MEDIA_PLAYER_IDLE               = 1 << 0,
-    MEDIA_PLAYER_INITIALIZED        = 1 << 1,
-    MEDIA_PLAYER_PREPARING          = 1 << 2,
-    MEDIA_PLAYER_PREPARED           = 1 << 3,
-    MEDIA_PLAYER_STARTED            = 1 << 4,
-    MEDIA_PLAYER_PAUSED             = 1 << 5,
-    MEDIA_PLAYER_STOPPED            = 1 << 6,
-    MEDIA_PLAYER_PLAYBACK_COMPLETE  = 1 << 7
-};
-
-// Keep KEY_PARAMETER_* in sync with MediaPlayer.java.
-// The same enum space is used for both set and get, in case there are future keys that
-// can be both set and get.  But as of now, all parameters are either set only or get only.
-enum media_parameter_keys {
-    // Streaming/buffering parameters
-    KEY_PARAMETER_CACHE_STAT_COLLECT_FREQ_MS = 1100,            // set only
-
-    // Return a Parcel containing a single int, which is the channel count of the
-    // audio track, or zero for error (e.g. no audio track) or unknown.
-    KEY_PARAMETER_AUDIO_CHANNEL_COUNT = 1200,                   // get only
-
-    // Playback rate expressed in permille (1000 is normal speed), saved as int32_t, with negative
-    // values used for rewinding or reverse playback.
-    KEY_PARAMETER_PLAYBACK_RATE_PERMILLE = 1300,                // set only
-
-    // Set a Parcel containing the value of a parcelled Java AudioAttribute instance
-    KEY_PARAMETER_AUDIO_ATTRIBUTES = 1400                       // set only
-};
-
-// Keep INVOKE_ID_* in sync with MediaPlayer.java.
-enum media_player_invoke_ids {
-    INVOKE_ID_GET_TRACK_INFO = 1,
-    INVOKE_ID_ADD_EXTERNAL_SOURCE = 2,
-    INVOKE_ID_ADD_EXTERNAL_SOURCE_FD = 3,
-    INVOKE_ID_SELECT_TRACK = 4,
-    INVOKE_ID_UNSELECT_TRACK = 5,
-    INVOKE_ID_SET_VIDEO_SCALING_MODE = 6,
-    INVOKE_ID_GET_SELECTED_TRACK = 7
-};
-
-// Keep MEDIA_TRACK_TYPE_* in sync with MediaPlayer.java.
-enum media_track_type {
-    MEDIA_TRACK_TYPE_UNKNOWN = 0,
-    MEDIA_TRACK_TYPE_VIDEO = 1,
-    MEDIA_TRACK_TYPE_AUDIO = 2,
-    MEDIA_TRACK_TYPE_TIMEDTEXT = 3,
-    MEDIA_TRACK_TYPE_SUBTITLE = 4,
-    MEDIA_TRACK_TYPE_METADATA = 5,
-};
-
-// ----------------------------------------------------------------------------
-// ref-counted object for callbacks
-class MediaPlayerListener: virtual public RefBase
-{
-public:
-    virtual void notify(int msg, int ext1, int ext2, const Parcel *obj) = 0;
-};
-
-struct IMediaHTTPService;
-
-class MediaPlayer : public BnMediaPlayerClient,
-                    public virtual IMediaDeathNotifier
-{
-public:
-    MediaPlayer();
-    ~MediaPlayer();
-            void            died();
-            void            disconnect();
-
-            status_t        setDataSource(
-                    const sp<IMediaHTTPService> &httpService,
-                    const char *url,
-                    const KeyedVector<String8, String8> *headers);
-
-            status_t        setDataSource(int fd, int64_t offset, int64_t length);
-            status_t        setDataSource(const sp<IDataSource> &source);
-            status_t        setVideoSurfaceTexture(
-                                    const sp<IGraphicBufferProducer>& bufferProducer);
-            status_t        setListener(const sp<MediaPlayerListener>& listener);
-            status_t        prepare();
-            status_t        prepareAsync();
-            status_t        start();
-            status_t        stop();
-            status_t        pause();
-            bool            isPlaying();
-            status_t        setPlaybackSettings(const AudioPlaybackRate& rate);
-            status_t        getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */);
-            status_t        setSyncSettings(const AVSyncSettings& sync, float videoFpsHint);
-            status_t        getSyncSettings(
-                                    AVSyncSettings* sync /* nonnull */,
-                                    float* videoFps /* nonnull */);
-            status_t        getVideoWidth(int *w);
-            status_t        getVideoHeight(int *h);
-            status_t        seekTo(int msec);
-            status_t        getCurrentPosition(int *msec);
-            status_t        getDuration(int *msec);
-            status_t        reset();
-            status_t        setAudioStreamType(audio_stream_type_t type);
-            status_t        getAudioStreamType(audio_stream_type_t *type);
-            status_t        setLooping(int loop);
-            bool            isLooping();
-            status_t        setVolume(float leftVolume, float rightVolume);
-            void            notify(int msg, int ext1, int ext2, const Parcel *obj = NULL);
-            status_t        invoke(const Parcel& request, Parcel *reply);
-            status_t        setMetadataFilter(const Parcel& filter);
-            status_t        getMetadata(bool update_only, bool apply_filter, Parcel *metadata);
-            status_t        setAudioSessionId(audio_session_t sessionId);
-            audio_session_t getAudioSessionId();
-            status_t        setAuxEffectSendLevel(float level);
-            status_t        attachAuxEffect(int effectId);
-            status_t        setParameter(int key, const Parcel& request);
-            status_t        getParameter(int key, Parcel* reply);
-            status_t        setRetransmitEndpoint(const char* addrString, uint16_t port);
-            status_t        setNextMediaPlayer(const sp<MediaPlayer>& player);
-
-private:
-            void            clear_l();
-            status_t        seekTo_l(int msec);
-            status_t        prepareAsync_l();
-            status_t        getDuration_l(int *msec);
-            status_t        attachNewPlayer(const sp<IMediaPlayer>& player);
-            status_t        reset_l();
-            status_t        doSetRetransmitEndpoint(const sp<IMediaPlayer>& player);
-            status_t        checkStateForKeySet_l(int key);
-
-    sp<IMediaPlayer>            mPlayer;
-    thread_id_t                 mLockThreadId;
-    Mutex                       mLock;
-    Mutex                       mNotifyLock;
-    Condition                   mSignal;
-    sp<MediaPlayerListener>     mListener;
-    void*                       mCookie;
-    media_player_states         mCurrentState;
-    int                         mCurrentPosition;
-    int                         mSeekPosition;
-    bool                        mPrepareSync;
-    status_t                    mPrepareStatus;
-    audio_stream_type_t         mStreamType;
-    Parcel*                     mAudioAttributesParcel;
-    bool                        mLoop;
-    float                       mLeftVolume;
-    float                       mRightVolume;
-    int                         mVideoWidth;
-    int                         mVideoHeight;
-    audio_session_t             mAudioSessionId;
-    float                       mSendLevel;
-    struct sockaddr_in          mRetransmitEndpoint;
-    bool                        mRetransmitEndpointValid;
-};
-
-}; // namespace android
-
-#endif // ANDROID_MEDIAPLAYER_H
diff --git a/include/media/mediaplayer.h b/include/media/mediaplayer.h
new file mode 120000
index 0000000..06d537b
--- /dev/null
+++ b/include/media/mediaplayer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/mediaplayer.h
\ No newline at end of file
diff --git a/include/media/mediarecorder.h b/include/media/mediarecorder.h
deleted file mode 100644
index c3f39a2..0000000
--- a/include/media/mediarecorder.h
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- ** Copyright (C) 2008 The Android Open Source Project
- **
- ** Licensed under the Apache License, Version 2.0 (the "License");
- ** you may not use this file except in compliance with the License.
- ** You may obtain a copy of the License at
- **
- **     http://www.apache.org/licenses/LICENSE-2.0
- **
- ** Unless required by applicable law or agreed to in writing, software
- ** distributed under the License is distributed on an "AS IS" BASIS,
- ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ** See the License for the specific language governing permissions and
- **
- ** limitations under the License.
- */
-
-#ifndef ANDROID_MEDIARECORDER_H
-#define ANDROID_MEDIARECORDER_H
-
-#include <utils/Log.h>
-#include <utils/threads.h>
-#include <utils/List.h>
-#include <utils/Errors.h>
-#include <media/IMediaRecorderClient.h>
-#include <media/IMediaDeathNotifier.h>
-
-namespace android {
-
-class Surface;
-class IMediaRecorder;
-class ICameraRecordingProxy;
-class IGraphicBufferProducer;
-struct PersistentSurface;
-class Surface;
-
-namespace hardware {
-class ICamera;
-}
-
-typedef void (*media_completion_f)(status_t status, void *cookie);
-
-enum video_source {
-    VIDEO_SOURCE_DEFAULT = 0,
-    VIDEO_SOURCE_CAMERA = 1,
-    VIDEO_SOURCE_SURFACE = 2,
-
-    VIDEO_SOURCE_LIST_END  // must be last - used to validate audio source type
-};
-
-//Please update media/java/android/media/MediaRecorder.java if the following is updated.
-enum output_format {
-    OUTPUT_FORMAT_DEFAULT = 0,
-    OUTPUT_FORMAT_THREE_GPP = 1,
-    OUTPUT_FORMAT_MPEG_4 = 2,
-
-
-    OUTPUT_FORMAT_AUDIO_ONLY_START = 3, // Used in validating the output format.  Should be the
-                                        //  at the start of the audio only output formats.
-
-    /* These are audio only file formats */
-    OUTPUT_FORMAT_RAW_AMR = 3, //to be backward compatible
-    OUTPUT_FORMAT_AMR_NB = 3,
-    OUTPUT_FORMAT_AMR_WB = 4,
-    OUTPUT_FORMAT_AAC_ADIF = 5,
-    OUTPUT_FORMAT_AAC_ADTS = 6,
-
-    OUTPUT_FORMAT_AUDIO_ONLY_END = 7, // Used in validating the output format.  Should be the
-                                      //  at the end of the audio only output formats.
-
-    /* Stream over a socket, limited to a single stream */
-    OUTPUT_FORMAT_RTP_AVP = 7,
-
-    /* H.264/AAC data encapsulated in MPEG2/TS */
-    OUTPUT_FORMAT_MPEG2TS = 8,
-
-    /* VP8/VORBIS data in a WEBM container */
-    OUTPUT_FORMAT_WEBM = 9,
-
-    OUTPUT_FORMAT_LIST_END // must be last - used to validate format type
-};
-
-enum audio_encoder {
-    AUDIO_ENCODER_DEFAULT = 0,
-    AUDIO_ENCODER_AMR_NB = 1,
-    AUDIO_ENCODER_AMR_WB = 2,
-    AUDIO_ENCODER_AAC = 3,
-    AUDIO_ENCODER_HE_AAC = 4,
-    AUDIO_ENCODER_AAC_ELD = 5,
-    AUDIO_ENCODER_VORBIS = 6,
-
-    AUDIO_ENCODER_LIST_END // must be the last - used to validate the audio encoder type
-};
-
-enum video_encoder {
-    VIDEO_ENCODER_DEFAULT = 0,
-    VIDEO_ENCODER_H263 = 1,
-    VIDEO_ENCODER_H264 = 2,
-    VIDEO_ENCODER_MPEG_4_SP = 3,
-    VIDEO_ENCODER_VP8 = 4,
-    VIDEO_ENCODER_HEVC = 5,
-
-    VIDEO_ENCODER_LIST_END // must be the last - used to validate the video encoder type
-};
-
-/*
- * The state machine of the media_recorder.
- */
-enum media_recorder_states {
-    // Error state.
-    MEDIA_RECORDER_ERROR                 =      0,
-
-    // Recorder was just created.
-    MEDIA_RECORDER_IDLE                  = 1 << 0,
-
-    // Recorder has been initialized.
-    MEDIA_RECORDER_INITIALIZED           = 1 << 1,
-
-    // Configuration of the recorder has been completed.
-    MEDIA_RECORDER_DATASOURCE_CONFIGURED = 1 << 2,
-
-    // Recorder is ready to start.
-    MEDIA_RECORDER_PREPARED              = 1 << 3,
-
-    // Recording is in progress.
-    MEDIA_RECORDER_RECORDING             = 1 << 4,
-};
-
-// The "msg" code passed to the listener in notify.
-enum media_recorder_event_type {
-    MEDIA_RECORDER_EVENT_LIST_START               = 1,
-    MEDIA_RECORDER_EVENT_ERROR                    = 1,
-    MEDIA_RECORDER_EVENT_INFO                     = 2,
-    MEDIA_RECORDER_EVENT_LIST_END                 = 99,
-
-    // Track related event types
-    MEDIA_RECORDER_TRACK_EVENT_LIST_START         = 100,
-    MEDIA_RECORDER_TRACK_EVENT_ERROR              = 100,
-    MEDIA_RECORDER_TRACK_EVENT_INFO               = 101,
-    MEDIA_RECORDER_TRACK_EVENT_LIST_END           = 1000,
-};
-
-/*
- * The (part of) "what" code passed to the listener in notify.
- * When the error or info type is track specific, the what has
- * the following layout:
- * the left-most 16-bit is meant for error or info type.
- * the right-most 4-bit is meant for track id.
- * the rest is reserved.
- *
- * | track id | reserved |     error or info type     |
- * 31         28         16                           0
- *
- */
-enum media_recorder_error_type {
-    MEDIA_RECORDER_ERROR_UNKNOWN                   = 1,
-
-    // Track related error type
-    MEDIA_RECORDER_TRACK_ERROR_LIST_START          = 100,
-    MEDIA_RECORDER_TRACK_ERROR_GENERAL             = 100,
-    MEDIA_RECORDER_ERROR_VIDEO_NO_SYNC_FRAME       = 200,
-    MEDIA_RECORDER_TRACK_ERROR_LIST_END            = 1000,
-};
-
-// The codes are distributed as follow:
-//   0xx: Reserved
-//   8xx: General info/warning
-//
-enum media_recorder_info_type {
-    MEDIA_RECORDER_INFO_UNKNOWN                   = 1,
-
-    MEDIA_RECORDER_INFO_MAX_DURATION_REACHED      = 800,
-    MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED      = 801,
-
-    // All track related informtional events start here
-    MEDIA_RECORDER_TRACK_INFO_LIST_START           = 1000,
-    MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS    = 1000,
-    MEDIA_RECORDER_TRACK_INFO_PROGRESS_IN_TIME     = 1001,
-    MEDIA_RECORDER_TRACK_INFO_TYPE                 = 1002,
-    MEDIA_RECORDER_TRACK_INFO_DURATION_MS          = 1003,
-
-    // The time to measure the max chunk duration
-    MEDIA_RECORDER_TRACK_INFO_MAX_CHUNK_DUR_MS     = 1004,
-
-    MEDIA_RECORDER_TRACK_INFO_ENCODED_FRAMES       = 1005,
-
-    // The time to measure how well the audio and video
-    // track data is interleaved.
-    MEDIA_RECORDER_TRACK_INTER_CHUNK_TIME_MS       = 1006,
-
-    // The time to measure system response. Note that
-    // the delay does not include the intentional delay
-    // we use to eliminate the recording sound.
-    MEDIA_RECORDER_TRACK_INFO_INITIAL_DELAY_MS     = 1007,
-
-    // The time used to compensate for initial A/V sync.
-    MEDIA_RECORDER_TRACK_INFO_START_OFFSET_MS      = 1008,
-
-    // Total number of bytes of the media data.
-    MEDIA_RECORDER_TRACK_INFO_DATA_KBYTES          = 1009,
-
-    MEDIA_RECORDER_TRACK_INFO_LIST_END             = 2000,
-};
-
-// ----------------------------------------------------------------------------
-// ref-counted object for callbacks
-class MediaRecorderListener: virtual public RefBase
-{
-public:
-    virtual void notify(int msg, int ext1, int ext2) = 0;
-};
-
-class MediaRecorder : public BnMediaRecorderClient,
-                      public virtual IMediaDeathNotifier
-{
-public:
-    MediaRecorder(const String16& opPackageName);
-    ~MediaRecorder();
-
-    void        died();
-    status_t    initCheck();
-    status_t    setCamera(const sp<hardware::ICamera>& camera,
-            const sp<ICameraRecordingProxy>& proxy);
-    status_t    setPreviewSurface(const sp<IGraphicBufferProducer>& surface);
-    status_t    setVideoSource(int vs);
-    status_t    setAudioSource(int as);
-    status_t    setOutputFormat(int of);
-    status_t    setVideoEncoder(int ve);
-    status_t    setAudioEncoder(int ae);
-    status_t    setOutputFile(int fd, int64_t offset, int64_t length);
-    status_t    setVideoSize(int width, int height);
-    status_t    setVideoFrameRate(int frames_per_second);
-    status_t    setParameters(const String8& params);
-    status_t    setListener(const sp<MediaRecorderListener>& listener);
-    status_t    setClientName(const String16& clientName);
-    status_t    prepare();
-    status_t    getMaxAmplitude(int* max);
-    status_t    start();
-    status_t    stop();
-    status_t    reset();
-    status_t    pause();
-    status_t    resume();
-    status_t    init();
-    status_t    close();
-    status_t    release();
-    void        notify(int msg, int ext1, int ext2);
-    status_t    setInputSurface(const sp<PersistentSurface>& surface);
-    sp<IGraphicBufferProducer>     querySurfaceMediaSourceFromMediaServer();
-
-private:
-    void                    doCleanUp();
-    status_t                doReset();
-
-    sp<IMediaRecorder>          mMediaRecorder;
-    sp<MediaRecorderListener>   mListener;
-
-    // Reference to IGraphicBufferProducer
-    // for encoding GL Frames. That is useful only when the
-    // video source is set to VIDEO_SOURCE_GRALLOC_BUFFER
-    sp<IGraphicBufferProducer>  mSurfaceMediaSource;
-
-    media_recorder_states       mCurrentState;
-    bool                        mIsAudioSourceSet;
-    bool                        mIsVideoSourceSet;
-    bool                        mIsAudioEncoderSet;
-    bool                        mIsVideoEncoderSet;
-    bool                        mIsOutputFileSet;
-    Mutex                       mLock;
-    Mutex                       mNotifyLock;
-};
-
-};  // namespace android
-
-#endif // ANDROID_MEDIARECORDER_H
diff --git a/include/media/mediarecorder.h b/include/media/mediarecorder.h
new file mode 120000
index 0000000..a24deb3
--- /dev/null
+++ b/include/media/mediarecorder.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/mediarecorder.h
\ No newline at end of file
diff --git a/include/media/mediascanner.h b/include/media/mediascanner.h
new file mode 120000
index 0000000..91479e0
--- /dev/null
+++ b/include/media/mediascanner.h
@@ -0,0 +1 @@
+../../media/libmedia/include/media/mediascanner.h
\ No newline at end of file
diff --git a/include/media/nbaio b/include/media/nbaio
new file mode 120000
index 0000000..67d0ba6
--- /dev/null
+++ b/include/media/nbaio
@@ -0,0 +1 @@
+../../media/libnbaio/include
\ No newline at end of file
diff --git a/include/media/nbaio/AudioStreamInSource.h b/include/media/nbaio/AudioStreamInSource.h
deleted file mode 100644
index a6e7992..0000000
--- a/include/media/nbaio/AudioStreamInSource.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_STREAM_IN_SOURCE_H
-#define ANDROID_AUDIO_STREAM_IN_SOURCE_H
-
-#include <hardware/audio.h>
-#include "NBAIO.h"
-
-namespace android {
-
-// not multi-thread safe
-class AudioStreamInSource : public NBAIO_Source {
-
-public:
-    AudioStreamInSource(audio_stream_in *stream);
-    virtual ~AudioStreamInSource();
-
-    // NBAIO_Port interface
-
-    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Sink interface
-
-    //virtual size_t framesRead() const;
-    virtual int64_t framesOverrun();
-    virtual int64_t overruns() { (void) framesOverrun(); return mOverruns; }
-
-    // This is an over-estimate, and could dupe the caller into making a blocking read()
-    // FIXME Use an audio HAL API to query the buffer filling status when it's available.
-    virtual ssize_t availableToRead() { return mStreamBufferSizeBytes / mFrameSize; }
-
-    virtual ssize_t read(void *buffer, size_t count);
-
-    // NBAIO_Sink end
-
-#if 0   // until necessary
-    audio_stream_in *stream() const { return mStream; }
-#endif
-
-private:
-    audio_stream_in * const mStream;
-    size_t              mStreamBufferSizeBytes; // as reported by get_buffer_size()
-    int64_t             mFramesOverrun;
-    int64_t             mOverruns;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_STREAM_IN_SOURCE_H
diff --git a/include/media/nbaio/AudioStreamOutSink.h b/include/media/nbaio/AudioStreamOutSink.h
deleted file mode 100644
index e86b018..0000000
--- a/include/media/nbaio/AudioStreamOutSink.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_STREAM_OUT_SINK_H
-#define ANDROID_AUDIO_STREAM_OUT_SINK_H
-
-#include <hardware/audio.h>
-#include "NBAIO.h"
-
-namespace android {
-
-// not multi-thread safe
-class AudioStreamOutSink : public NBAIO_Sink {
-
-public:
-    AudioStreamOutSink(audio_stream_out *stream);
-    virtual ~AudioStreamOutSink();
-
-    // NBAIO_Port interface
-
-    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format();
-
-    // NBAIO_Sink interface
-
-    //virtual size_t framesWritten() const;
-    //virtual size_t framesUnderrun() const;
-    //virtual size_t underruns() const;
-
-    // This is an over-estimate, and could dupe the caller into making a blocking write()
-    // FIXME Use an audio HAL API to query the buffer emptying status when it's available.
-    virtual ssize_t availableToWrite() const { return mStreamBufferSizeBytes / mFrameSize; }
-
-    virtual ssize_t write(const void *buffer, size_t count);
-
-    virtual status_t getTimestamp(ExtendedTimestamp &timestamp);
-
-    // NBAIO_Sink end
-
-#if 0   // until necessary
-    audio_stream_out *stream() const { return mStream; }
-#endif
-
-private:
-    audio_stream_out * const mStream;
-    size_t              mStreamBufferSizeBytes; // as reported by get_buffer_size()
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_STREAM_OUT_SINK_H
diff --git a/include/media/nbaio/LibsndfileSink.h b/include/media/nbaio/LibsndfileSink.h
deleted file mode 100644
index f5d53d5..0000000
--- a/include/media/nbaio/LibsndfileSink.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_LIBSNDFILE_SINK_H
-#define ANDROID_AUDIO_LIBSNDFILE_SINK_H
-
-#include "NBAIO.h"
-#include "sndfile.h"
-
-// Implementation of NBAIO_Sink that wraps a libsndfile opened in SFM_WRITE mode
-
-namespace android {
-
-class LibsndfileSink : public NBAIO_Sink {
-
-public:
-    LibsndfileSink(SNDFILE *sndfile, const SF_INFO &sfinfo);
-    virtual ~LibsndfileSink();
-
-    // NBAIO_Port interface
-
-    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Sink interface
-
-    //virtual size_t framesWritten() const;
-    //virtual size_t framesUnderrun() const;
-    //virtual size_t underruns() const;
-    //virtual ssize_t availableToWrite() const;
-    virtual ssize_t write(const void *buffer, size_t count);
-    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
-
-private:
-    SNDFILE *                   mSndfile;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_LIBSNDFILE_SINK_H
diff --git a/include/media/nbaio/MonoPipe.h b/include/media/nbaio/MonoPipe.h
deleted file mode 100644
index d2cd218..0000000
--- a/include/media/nbaio/MonoPipe.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_MONO_PIPE_H
-#define ANDROID_AUDIO_MONO_PIPE_H
-
-#include <time.h>
-#include "NBAIO.h"
-#include <media/SingleStateQueue.h>
-
-namespace android {
-
-typedef SingleStateQueue<ExtendedTimestamp> ExtendedTimestampSingleStateQueue;
-
-// MonoPipe is similar to Pipe except:
-//  - supports only a single reader, called MonoPipeReader
-//  - write() cannot overrun; instead it will return a short actual count if insufficient space
-//  - write() can optionally block if the pipe is full
-// Like Pipe, it is not multi-thread safe for either writer or reader
-// but writer and reader can be different threads.
-class MonoPipe : public NBAIO_Sink {
-
-    friend class MonoPipeReader;
-
-public:
-    // reqFrames will be rounded up to a power of 2, and all slots are available. Must be >= 2.
-    // Note: whatever shares this object with another thread needs to do so in an SMP-safe way (like
-    // creating it the object before creating the other thread, or storing the object with a
-    // release_store). Otherwise the other thread could see a partially-constructed object.
-    MonoPipe(size_t reqFrames, const NBAIO_Format& format, bool writeCanBlock = false);
-    virtual ~MonoPipe();
-
-    // NBAIO_Port interface
-
-    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Sink interface
-
-    //virtual int64_t framesWritten() const;
-    //virtual int64_t framesUnderrun() const;
-    //virtual int64_t underruns() const;
-
-    virtual ssize_t availableToWrite() const;
-    virtual ssize_t write(const void *buffer, size_t count);
-    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
-
-            // average number of frames present in the pipe under normal conditions.
-            // See throttling mechanism in MonoPipe::write()
-            size_t  getAvgFrames() const { return mSetpoint; }
-            void    setAvgFrames(size_t setpoint);
-            size_t  maxFrames() const { return mMaxFrames; }
-
-            // Set the shutdown state for the write side of a pipe.
-            // This may be called by an unrelated thread.  When shutdown state is 'true',
-            // a write that would otherwise block instead returns a short transfer count.
-            // There is no guarantee how long it will take for the shutdown to be recognized,
-            // but it will not be an unbounded amount of time.
-            // The state can be restored to normal by calling shutdown(false).
-            void    shutdown(bool newState = true);
-
-            // Return true if the write side of a pipe is currently shutdown.
-            bool    isShutdown();
-
-            // Return NO_ERROR if there is a timestamp available
-            status_t getTimestamp(ExtendedTimestamp &timestamp);
-
-private:
-    const size_t    mReqFrames;     // as requested in constructor, unrounded
-    const size_t    mMaxFrames;     // always a power of 2
-    void * const    mBuffer;
-    // mFront and mRear will never be separated by more than mMaxFrames.
-    // 32-bit overflow is possible if the pipe is active for a long time, but if that happens it's
-    // safe because we "&" with (mMaxFrames-1) at end of computations to calculate a buffer index.
-    volatile int32_t mFront;        // written by reader with android_atomic_release_store,
-                                    // read by writer with android_atomic_acquire_load
-    volatile int32_t mRear;         // written by writer with android_atomic_release_store,
-                                    // read by reader with android_atomic_acquire_load
-    bool            mWriteTsValid;  // whether mWriteTs is valid
-    struct timespec mWriteTs;       // time that the previous write() completed
-    size_t          mSetpoint;      // target value for pipe fill depth
-    const bool      mWriteCanBlock; // whether write() should block if the pipe is full
-
-    bool            mIsShutdown;    // whether shutdown(true) was called, no barriers are needed
-
-    ExtendedTimestampSingleStateQueue::Shared      mTimestampShared;
-    ExtendedTimestampSingleStateQueue::Mutator     mTimestampMutator;
-    ExtendedTimestampSingleStateQueue::Observer    mTimestampObserver;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_MONO_PIPE_H
diff --git a/include/media/nbaio/MonoPipeReader.h b/include/media/nbaio/MonoPipeReader.h
deleted file mode 100644
index b3c891d..0000000
--- a/include/media/nbaio/MonoPipeReader.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_MONO_PIPE_READER_H
-#define ANDROID_AUDIO_MONO_PIPE_READER_H
-
-#include "MonoPipe.h"
-
-namespace android {
-
-// MonoPipeReader is safe for only a single reader thread
-class MonoPipeReader : public NBAIO_Source {
-
-public:
-
-    // Construct a MonoPipeReader and associate it with a MonoPipe;
-    // any data already in the pipe is visible to this PipeReader.
-    // There can be only a single MonoPipeReader per MonoPipe.
-    // FIXME make this constructor a factory method of MonoPipe.
-    MonoPipeReader(MonoPipe* pipe);
-    virtual ~MonoPipeReader();
-
-    // NBAIO_Port interface
-
-    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Source interface
-
-    //virtual size_t framesRead() const;
-    //virtual size_t framesOverrun();
-    //virtual size_t overruns();
-
-    virtual ssize_t availableToRead();
-
-    virtual ssize_t read(void *buffer, size_t count);
-
-    virtual void    onTimestamp(const ExtendedTimestamp &timestamp);
-
-    // NBAIO_Source end
-
-#if 0   // until necessary
-    MonoPipe* pipe() const { return mPipe; }
-#endif
-
-private:
-    MonoPipe * const mPipe;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_MONO_PIPE_READER_H
diff --git a/include/media/nbaio/NBAIO.h b/include/media/nbaio/NBAIO.h
deleted file mode 100644
index 120de4f..0000000
--- a/include/media/nbaio/NBAIO.h
+++ /dev/null
@@ -1,315 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_NBAIO_H
-#define ANDROID_AUDIO_NBAIO_H
-
-// Non-blocking audio I/O interface
-//
-// This header file has the abstract interfaces only.  Concrete implementation classes are declared
-// elsewhere.  Implementations _should_ be non-blocking for all methods, especially read() and
-// write(), but this is not enforced.  In general, implementations do not need to be multi-thread
-// safe, and any exceptions are noted in the particular implementation.
-
-#include <limits.h>
-#include <stdlib.h>
-#include <utils/Errors.h>
-#include <utils/RefBase.h>
-#include <media/AudioTimestamp.h>
-#include <system/audio.h>
-
-namespace android {
-
-// In addition to the usual status_t
-enum {
-    NEGOTIATE    = 0x80000010,  // Must (re-)negotiate format.  For negotiate() only, the offeree
-                                // doesn't accept offers, and proposes counter-offers
-    OVERRUN      = 0x80000011,  // availableToRead(), read(), or readVia() detected lost input due
-                                // to overrun; an event is counted and the caller should re-try
-    UNDERRUN     = 0x80000012,  // availableToWrite(), write(), or writeVia() detected a gap in
-                                // output due to underrun (not being called often enough, or with
-                                // enough data); an event is counted and the caller should re-try
-};
-
-// Negotiation of format is based on the data provider and data sink, or the data consumer and
-// data source, exchanging prioritized arrays of offers and counter-offers until a single offer is
-// mutually agreed upon.  Each offer is an NBAIO_Format.  For simplicity and performance,
-// NBAIO_Format is a typedef that ties together the most important combinations of the various
-// attributes, rather than a struct with separate fields for format, sample rate, channel count,
-// interleave, packing, alignment, etc.  The reason is that NBAIO_Format tries to abstract out only
-// the combinations that are actually needed within AudioFlinger.  If the list of combinations grows
-// too large, then this decision should be re-visited.
-// Sample rate and channel count are explicit, PCM interleaved 16-bit is assumed.
-struct NBAIO_Format {
-// FIXME make this a class, and change Format_... global methods to class methods
-//private:
-    unsigned    mSampleRate;
-    unsigned    mChannelCount;
-    audio_format_t  mFormat;
-    size_t      mFrameSize;
-};
-
-extern const NBAIO_Format Format_Invalid;
-
-// Return the frame size of an NBAIO_Format in bytes
-size_t Format_frameSize(const NBAIO_Format& format);
-
-// Convert a sample rate in Hz and channel count to an NBAIO_Format
-// FIXME rename
-NBAIO_Format Format_from_SR_C(unsigned sampleRate, unsigned channelCount, audio_format_t format);
-
-// Return the sample rate in Hz of an NBAIO_Format
-unsigned Format_sampleRate(const NBAIO_Format& format);
-
-// Return the channel count of an NBAIO_Format
-unsigned Format_channelCount(const NBAIO_Format& format);
-
-// Callbacks used by NBAIO_Sink::writeVia() and NBAIO_Source::readVia() below.
-typedef ssize_t (*writeVia_t)(void *user, void *buffer, size_t count);
-typedef ssize_t (*readVia_t)(void *user, const void *buffer, size_t count);
-
-// Check whether an NBAIO_Format is valid
-bool Format_isValid(const NBAIO_Format& format);
-
-// Compare two NBAIO_Format values
-bool Format_isEqual(const NBAIO_Format& format1, const NBAIO_Format& format2);
-
-// Abstract class (interface) representing a data port.
-class NBAIO_Port : public RefBase {
-
-public:
-
-    // negotiate() must called first.  The purpose of negotiate() is to check compatibility of
-    // formats, not to automatically adapt if they are incompatible.  It's the responsibility of
-    // whoever sets up the graph connections to make sure formats are compatible, and this method
-    // just verifies that.  The edges are "dumb" and don't attempt to adapt to bad connections.
-    // How it works: offerer proposes an array of formats, in descending order of preference from
-    // offers[0] to offers[numOffers - 1].  If offeree accepts one of these formats, it returns
-    // the index of that offer.  Otherwise, offeree sets numCounterOffers to the number of
-    // counter-offers (up to a maximumum of the entry value of numCounterOffers), fills in the
-    // provided array counterOffers[] with its counter-offers, in descending order of preference
-    // from counterOffers[0] to counterOffers[numCounterOffers - 1], and returns NEGOTIATE.
-    // Note that since the offerer allocates space for counter-offers, but only the offeree knows
-    // how many counter-offers it has, there may be insufficient space for all counter-offers.
-    // In that case, the offeree sets numCounterOffers to the requested number of counter-offers
-    // (which is greater than the entry value of numCounterOffers), fills in as many of the most
-    // important counterOffers as will fit, and returns NEGOTIATE.  As this implies a re-allocation,
-    // it should be used as a last resort.  It is preferable for the offerer to simply allocate a
-    // larger space to begin with, and/or for the offeree to tolerate a smaller space than desired.
-    // Alternatively, the offerer can pass NULL for offers and counterOffers, and zero for
-    // numOffers. This indicates that it has not allocated space for any counter-offers yet.
-    // In this case, the offerree should set numCounterOffers appropriately and return NEGOTIATE.
-    // Then the offerer will allocate the correct amount of memory and retry.
-    // Format_Invalid is not allowed as either an offer or counter-offer.
-    // Returns:
-    //  >= 0        Offer accepted.
-    //  NEGOTIATE   No offer accepted, and counter-offer(s) optionally made. See above for details.
-    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
-
-    // Return the current negotiated format, or Format_Invalid if negotiation has not been done,
-    // or if re-negotiation is required.
-    virtual NBAIO_Format format() const { return mNegotiated ? mFormat : Format_Invalid; }
-
-protected:
-    NBAIO_Port(const NBAIO_Format& format) : mNegotiated(false), mFormat(format),
-                                             mFrameSize(Format_frameSize(format)) { }
-    virtual ~NBAIO_Port() { }
-
-    // Implementations are free to ignore these if they don't need them
-
-    bool            mNegotiated;    // mNegotiated implies (mFormat != Format_Invalid)
-    NBAIO_Format    mFormat;        // (mFormat != Format_Invalid) does not imply mNegotiated
-    size_t          mFrameSize;     // assign in parallel with any assignment to mFormat
-};
-
-// Abstract class (interface) representing a non-blocking data sink, for use by a data provider.
-class NBAIO_Sink : public NBAIO_Port {
-
-public:
-
-    // For the next two APIs:
-    // 32 bits rolls over after 27 hours at 44.1 kHz; if that concerns you then poll periodically.
-
-    // Return the number of frames written successfully since construction.
-    virtual int64_t framesWritten() const { return mFramesWritten; }
-
-    // Number of frames lost due to underrun since construction.
-    virtual int64_t framesUnderrun() const { return 0; }
-
-    // Number of underruns since construction, where a set of contiguous lost frames is one event.
-    virtual int64_t underruns() const { return 0; }
-
-    // Estimate of number of frames that could be written successfully now without blocking.
-    // When a write() is actually attempted, the implementation is permitted to return a smaller or
-    // larger transfer count, however it will make a good faith effort to give an accurate estimate.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
-    //              An underrun event is counted, and the caller should re-try this operation.
-    //  WOULD_BLOCK Determining how many frames can be written without blocking would itself block.
-    virtual ssize_t availableToWrite() const { return SSIZE_MAX; }
-
-    // Transfer data to sink from single input buffer.  Implies a copy.
-    // Inputs:
-    //  buffer  Non-NULL buffer owned by provider.
-    //  count   Maximum number of frames to transfer.
-    // Return value:
-    //  > 0     Number of frames successfully transferred prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  WOULD_BLOCK No frames can be transferred without blocking.
-    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
-    //              An underrun event is counted, and the caller should re-try this operation.
-    virtual ssize_t write(const void *buffer, size_t count) = 0;
-
-    // Transfer data to sink using a series of callbacks.  More suitable for zero-fill, synthesis,
-    // and non-contiguous transfers (e.g. circular buffer or writev).
-    // Inputs:
-    //  via     Callback function that the sink will call as many times as needed to consume data.
-    //  total   Estimate of the number of frames the provider has available.  This is an estimate,
-    //          and it can provide a different number of frames during the series of callbacks.
-    //  user    Arbitrary void * reserved for data provider.
-    //  block   Number of frames per block, that is a suggested value for 'count' in each callback.
-    //          Zero means no preference.  This parameter is a hint only, and may be ignored.
-    // Return value:
-    //  > 0     Total number of frames successfully transferred prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  WOULD_BLOCK No frames can be transferred without blocking.
-    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
-    //              An underrun event is counted, and the caller should re-try this operation.
-    //
-    // The 'via' callback is called by the data sink as follows:
-    // Inputs:
-    //  user    Arbitrary void * reserved for data provider.
-    //  buffer  Non-NULL buffer owned by sink that callback should fill in with data,
-    //          up to a maximum of 'count' frames.
-    //  count   Maximum number of frames to transfer during this callback.
-    // Return value:
-    //  > 0     Number of frames successfully transferred during this callback prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer during this callback.
-    virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block = 0);
-
-    // Returns NO_ERROR if a timestamp is available.  The timestamp includes the total number
-    // of frames presented to an external observer, together with the value of CLOCK_MONOTONIC
-    // as of this presentation count.  The timestamp parameter is undefined if error is returned.
-    virtual status_t getTimestamp(ExtendedTimestamp &timestamp) { return INVALID_OPERATION; }
-
-protected:
-    NBAIO_Sink(const NBAIO_Format& format = Format_Invalid) : NBAIO_Port(format), mFramesWritten(0)
-            { }
-    virtual ~NBAIO_Sink() { }
-
-    // Implementations are free to ignore these if they don't need them
-    int64_t  mFramesWritten;
-};
-
-// Abstract class (interface) representing a non-blocking data source, for use by a data consumer.
-class NBAIO_Source : public NBAIO_Port {
-
-public:
-
-    // For the next two APIs:
-    // 32 bits rolls over after 27 hours at 44.1 kHz; if that concerns you then poll periodically.
-
-    // Number of frames read successfully since construction.
-    virtual int64_t framesRead() const { return mFramesRead; }
-
-    // Number of frames lost due to overrun since construction.
-    // Not const because implementations may need to do I/O.
-    virtual int64_t framesOverrun() /*const*/ { return 0; }
-
-    // Number of overruns since construction, where a set of contiguous lost frames is one event.
-    // Not const because implementations may need to do I/O.
-    virtual int64_t overruns() /*const*/ { return 0; }
-
-    // Estimate of number of frames that could be read successfully now.
-    // When a read() is actually attempted, the implementation is permitted to return a smaller or
-    // larger transfer count, however it will make a good faith effort to give an accurate estimate.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  OVERRUN     One or more frames were lost due to overrun, try again to read more recent data.
-    //  WOULD_BLOCK Determining how many frames can be read without blocking would itself block.
-    virtual ssize_t availableToRead() { return SSIZE_MAX; }
-
-    // Transfer data from source into single destination buffer.  Implies a copy.
-    // Inputs:
-    //  buffer  Non-NULL destination buffer owned by consumer.
-    //  count   Maximum number of frames to transfer.
-    // Return value:
-    //  > 0     Number of frames successfully transferred prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  WOULD_BLOCK No frames can be transferred without blocking.
-    //  OVERRUN     read() has not been called frequently enough, or with enough frames to keep up.
-    //              One or more frames were lost due to overrun, try again to read more recent data.
-    virtual ssize_t read(void *buffer, size_t count) = 0;
-
-    // Transfer data from source using a series of callbacks.  More suitable for zero-fill,
-    // synthesis, and non-contiguous transfers (e.g. circular buffer or readv).
-    // Inputs:
-    //  via     Callback function that the source will call as many times as needed to provide data.
-    //  total   Estimate of the number of frames the consumer desires.  This is an estimate,
-    //          and it can consume a different number of frames during the series of callbacks.
-    //  user    Arbitrary void * reserved for data consumer.
-    //  block   Number of frames per block, that is a suggested value for 'count' in each callback.
-    //          Zero means no preference.  This parameter is a hint only, and may be ignored.
-    // Return value:
-    //  > 0     Total number of frames successfully transferred prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  WOULD_BLOCK No frames can be transferred without blocking.
-    //  OVERRUN     read() has not been called frequently enough, or with enough frames to keep up.
-    //              One or more frames were lost due to overrun, try again to read more recent data.
-    //
-    // The 'via' callback is called by the data source as follows:
-    // Inputs:
-    //  user    Arbitrary void * reserved for data consumer.
-    //  dest    Non-NULL buffer owned by source that callback should consume data from,
-    //          up to a maximum of 'count' frames.
-    //  count   Maximum number of frames to transfer during this callback.
-    // Return value:
-    //  > 0     Number of frames successfully transferred during this callback prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer during this callback.
-    virtual ssize_t readVia(readVia_t via, size_t total, void *user, size_t block = 0);
-
-    // Invoked asynchronously by corresponding sink when a new timestamp is available.
-    // Default implementation ignores the timestamp.
-    virtual void    onTimestamp(const ExtendedTimestamp& timestamp) { }
-
-protected:
-    NBAIO_Source(const NBAIO_Format& format = Format_Invalid) : NBAIO_Port(format), mFramesRead(0)
-            { }
-    virtual ~NBAIO_Source() { }
-
-    // Implementations are free to ignore these if they don't need them
-    int64_t  mFramesRead;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_NBAIO_H
diff --git a/include/media/nbaio/NBLog.h b/include/media/nbaio/NBLog.h
deleted file mode 100644
index 1297b51..0000000
--- a/include/media/nbaio/NBLog.h
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// Non-blocking event logger intended for safe communication between processes via shared memory
-
-#ifndef ANDROID_MEDIA_NBLOG_H
-#define ANDROID_MEDIA_NBLOG_H
-
-#include <binder/IMemory.h>
-#include <utils/Mutex.h>
-#include <audio_utils/roundup.h>
-
-namespace android {
-
-class String8;
-
-class NBLog {
-
-public:
-
-class Writer;
-class Reader;
-
-private:
-
-enum Event {
-    EVENT_RESERVED,
-    EVENT_STRING,               // ASCII string, not NUL-terminated
-    EVENT_TIMESTAMP,            // clock_gettime(CLOCK_MONOTONIC)
-};
-
-// ---------------------------------------------------------------------------
-
-// representation of a single log entry in private memory
-struct Entry {
-    Entry(Event event, const void *data, size_t length)
-        : mEvent(event), mLength(length), mData(data) { }
-    /*virtual*/ ~Entry() { }
-
-    int     readAt(size_t offset) const;
-
-private:
-    friend class Writer;
-    Event       mEvent;     // event type
-    size_t      mLength;    // length of additional data, 0 <= mLength <= 255
-    const void *mData;      // event type-specific data
-};
-
-// representation of a single log entry in shared memory
-//  byte[0]             mEvent
-//  byte[1]             mLength
-//  byte[2]             mData[0]
-//  ...
-//  byte[2+i]           mData[i]
-//  ...
-//  byte[2+mLength-1]   mData[mLength-1]
-//  byte[2+mLength]     duplicate copy of mLength to permit reverse scan
-//  byte[3+mLength]     start of next log entry
-
-// located in shared memory
-struct Shared {
-    Shared() : mRear(0) { }
-    /*virtual*/ ~Shared() { }
-
-    volatile int32_t mRear;     // index one byte past the end of most recent Entry
-    char    mBuffer[0];         // circular buffer for entries
-};
-
-public:
-
-// ---------------------------------------------------------------------------
-
-// FIXME Timeline was intended to wrap Writer and Reader, but isn't actually used yet.
-// For now it is just a namespace for sharedSize().
-class Timeline : public RefBase {
-public:
-#if 0
-    Timeline(size_t size, void *shared = NULL);
-    virtual ~Timeline();
-#endif
-
-    // Input parameter 'size' is the desired size of the timeline in byte units.
-    // Returns the size rounded up to a power-of-2, plus the constant size overhead for indices.
-    static size_t sharedSize(size_t size);
-
-#if 0
-private:
-    friend class    Writer;
-    friend class    Reader;
-
-    const size_t    mSize;      // circular buffer size in bytes, must be a power of 2
-    bool            mOwn;       // whether I own the memory at mShared
-    Shared* const   mShared;    // pointer to shared memory
-#endif
-};
-
-// ---------------------------------------------------------------------------
-
-// Writer is thread-safe with respect to Reader, but not with respect to multiple threads
-// calling Writer methods.  If you need multi-thread safety for writing, use LockedWriter.
-class Writer : public RefBase {
-public:
-    Writer();                   // dummy nop implementation without shared memory
-
-    // Input parameter 'size' is the desired size of the timeline in byte units.
-    // The size of the shared memory must be at least Timeline::sharedSize(size).
-    Writer(size_t size, void *shared);
-    Writer(size_t size, const sp<IMemory>& iMemory);
-
-    virtual ~Writer() { }
-
-    virtual void    log(const char *string);
-    virtual void    logf(const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
-    virtual void    logvf(const char *fmt, va_list ap);
-    virtual void    logTimestamp();
-    virtual void    logTimestamp(const struct timespec& ts);
-
-    virtual bool    isEnabled() const;
-
-    // return value for all of these is the previous isEnabled()
-    virtual bool    setEnabled(bool enabled);   // but won't enable if no shared memory
-            bool    enable()    { return setEnabled(true); }
-            bool    disable()   { return setEnabled(false); }
-
-    sp<IMemory>     getIMemory() const  { return mIMemory; }
-
-private:
-    void    log(Event event, const void *data, size_t length);
-    void    log(const Entry *entry, bool trusted = false);
-
-    const size_t    mSize;      // circular buffer size in bytes, must be a power of 2
-    Shared* const   mShared;    // raw pointer to shared memory
-    const sp<IMemory> mIMemory; // ref-counted version
-    int32_t         mRear;      // my private copy of mShared->mRear
-    bool            mEnabled;   // whether to actually log
-};
-
-// ---------------------------------------------------------------------------
-
-// Similar to Writer, but safe for multiple threads to call concurrently
-class LockedWriter : public Writer {
-public:
-    LockedWriter();
-    LockedWriter(size_t size, void *shared);
-
-    virtual void    log(const char *string);
-    virtual void    logf(const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
-    virtual void    logvf(const char *fmt, va_list ap);
-    virtual void    logTimestamp();
-    virtual void    logTimestamp(const struct timespec& ts);
-
-    virtual bool    isEnabled() const;
-    virtual bool    setEnabled(bool enabled);
-
-private:
-    mutable Mutex   mLock;
-};
-
-// ---------------------------------------------------------------------------
-
-class Reader : public RefBase {
-public:
-
-    // Input parameter 'size' is the desired size of the timeline in byte units.
-    // The size of the shared memory must be at least Timeline::sharedSize(size).
-    Reader(size_t size, const void *shared);
-    Reader(size_t size, const sp<IMemory>& iMemory);
-
-    virtual ~Reader() { }
-
-    void    dump(int fd, size_t indent = 0);
-    bool    isIMemory(const sp<IMemory>& iMemory) const;
-
-private:
-    const size_t    mSize;      // circular buffer size in bytes, must be a power of 2
-    const Shared* const mShared; // raw pointer to shared memory
-    const sp<IMemory> mIMemory; // ref-counted version
-    int32_t     mFront;         // index of oldest acknowledged Entry
-    int     mFd;                // file descriptor
-    int     mIndent;            // indentation level
-
-    void    dumpLine(const String8& timestamp, String8& body);
-
-    static const size_t kSquashTimestamp = 5; // squash this many or more adjacent timestamps
-};
-
-};  // class NBLog
-
-}   // namespace android
-
-#endif  // ANDROID_MEDIA_NBLOG_H
diff --git a/include/media/nbaio/Pipe.h b/include/media/nbaio/Pipe.h
deleted file mode 100644
index cc95ff7..0000000
--- a/include/media/nbaio/Pipe.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_PIPE_H
-#define ANDROID_AUDIO_PIPE_H
-
-#include "NBAIO.h"
-
-namespace android {
-
-// Pipe is multi-thread safe for readers (see PipeReader), but safe for only a single writer thread.
-// It cannot UNDERRUN on write, unless we allow designation of a master reader that provides the
-// time-base. Readers can be added and removed dynamically, and it's OK to have no readers.
-class Pipe : public NBAIO_Sink {
-
-    friend class PipeReader;
-
-public:
-    // maxFrames will be rounded up to a power of 2, and all slots are available. Must be >= 2.
-    // buffer is an optional parameter specifying the virtual address of the pipe buffer,
-    // which must be of size roundup(maxFrames) * Format_frameSize(format) bytes.
-    Pipe(size_t maxFrames, const NBAIO_Format& format, void *buffer = NULL);
-
-    // If a buffer was specified in the constructor, it is not automatically freed by destructor.
-    virtual ~Pipe();
-
-    // NBAIO_Port interface
-
-    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Sink interface
-
-    //virtual int64_t framesWritten() const;
-    //virtual int64_t framesUnderrun() const;
-    //virtual int64_t underruns() const;
-
-    // The write side of a pipe permits overruns; flow control is the caller's responsibility.
-    // It doesn't return +infinity because that would guarantee an overrun.
-    virtual ssize_t availableToWrite() const { return mMaxFrames; }
-
-    virtual ssize_t write(const void *buffer, size_t count);
-    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
-
-private:
-    const size_t    mMaxFrames;     // always a power of 2
-    void * const    mBuffer;
-    volatile int32_t mRear;         // written by android_atomic_release_store
-    volatile int32_t mReaders;      // number of PipeReader clients currently attached to this Pipe
-    const bool      mFreeBufferInDestructor;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_PIPE_H
diff --git a/include/media/nbaio/PipeReader.h b/include/media/nbaio/PipeReader.h
deleted file mode 100644
index 7c733ad..0000000
--- a/include/media/nbaio/PipeReader.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_PIPE_READER_H
-#define ANDROID_AUDIO_PIPE_READER_H
-
-#include "Pipe.h"
-
-namespace android {
-
-// PipeReader is safe for only a single thread
-class PipeReader : public NBAIO_Source {
-
-public:
-
-    // Construct a PipeReader and associate it with a Pipe
-    // FIXME make this constructor a factory method of Pipe.
-    PipeReader(Pipe& pipe);
-    virtual ~PipeReader();
-
-    // NBAIO_Port interface
-
-    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Source interface
-
-    //virtual size_t framesRead() const;
-    virtual int64_t framesOverrun() { return mFramesOverrun; }
-    virtual int64_t overruns()  { return mOverruns; }
-
-    virtual ssize_t availableToRead();
-
-    virtual ssize_t read(void *buffer, size_t count);
-
-    // NBAIO_Source end
-
-#if 0   // until necessary
-    Pipe& pipe() const { return mPipe; }
-#endif
-
-private:
-    Pipe&       mPipe;
-    int32_t     mFront;         // follows behind mPipe.mRear
-    int64_t     mFramesOverrun;
-    int64_t     mOverruns;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_PIPE_READER_H
diff --git a/include/media/omx/1.0/Conversion.h b/include/media/omx/1.0/Conversion.h
new file mode 100644
index 0000000..9816fe1
--- /dev/null
+++ b/include/media/omx/1.0/Conversion.h
@@ -0,0 +1,899 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
+
+#include <vector>
+#include <list>
+
+#include <unistd.h>
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <hidlmemory/mapping.h>
+
+#include <binder/Binder.h>
+#include <binder/Status.h>
+#include <ui/FenceTime.h>
+#include <cutils/native_handle.h>
+
+#include <ui/GraphicBuffer.h>
+#include <media/OMXFenceParcelable.h>
+#include <media/OMXBuffer.h>
+#include <media/hardware/VideoAPI.h>
+
+#include <android/hidl/memory/1.0/IMemory.h>
+#include <android/hardware/media/omx/1.0/types.h>
+#include <android/hardware/media/omx/1.0/IOmx.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IOmxBufferSource.h>
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+#include <android/hardware/media/omx/1.0/IGraphicBufferSource.h>
+
+#include <android/IGraphicBufferSource.h>
+#include <android/IOMXBufferSource.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::String8;
+using ::android::OMXFenceParcelable;
+
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::omx_message;
+
+using ::android::hardware::media::omx::V1_0::ColorAspects;
+using ::android::hardware::media::V1_0::Rect;
+using ::android::hardware::media::V1_0::Region;
+
+using ::android::hardware::graphics::common::V1_0::Dataspace;
+
+using ::android::hardware::graphics::common::V1_0::PixelFormat;
+
+using ::android::OMXBuffer;
+
+using ::android::hardware::media::V1_0::AnwBuffer;
+using ::android::GraphicBuffer;
+
+using ::android::hardware::media::omx::V1_0::IOmx;
+using ::android::IOMX;
+
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::IOMXNode;
+
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::IOMXObserver;
+
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::IOMXBufferSource;
+
+// native_handle_t helper functions.
+
+/**
+ * \brief Take an fd and create a native handle containing only the given fd.
+ * The created handle will need to be deleted manually with
+ * `native_handle_delete()`.
+ *
+ * \param[in] fd The source file descriptor (of type `int`).
+ * \return The create `native_handle_t*` that contains the given \p fd. If the
+ * supplied \p fd is negative, the created native handle will contain no file
+ * descriptors.
+ *
+ * If the native handle cannot be created, the return value will be
+ * `nullptr`.
+ *
+ * This function does not duplicate the file descriptor.
+ */
+inline native_handle_t* native_handle_create_from_fd(int fd) {
+    if (fd < 0) {
+        return native_handle_create(0, 0);
+    }
+    native_handle_t* nh = native_handle_create(1, 0);
+    if (nh == nullptr) {
+        return nullptr;
+    }
+    nh->data[0] = fd;
+    return nh;
+}
+
+/**
+ * \brief Extract a file descriptor from a native handle.
+ *
+ * \param[in] nh The source `native_handle_t*`.
+ * \param[in] index The index of the file descriptor in \p nh to read from. This
+ * input has the default value of `0`.
+ * \return The `index`-th file descriptor in \p nh. If \p nh does not have
+ * enough file descriptors, the returned value will be `-1`.
+ *
+ * This function does not duplicate the file descriptor.
+ */
+inline int native_handle_read_fd(native_handle_t const* nh, int index = 0) {
+    return ((nh == nullptr) || (nh->numFds == 0) ||
+            (nh->numFds <= index) || (index < 0)) ?
+            -1 : nh->data[index];
+}
+
+/**
+ * Conversion functions
+ * ====================
+ *
+ * There are two main directions of conversion:
+ * - `inTargetType(...)`: Create a wrapper whose lifetime depends on the
+ *   input. The wrapper has type `TargetType`.
+ * - `toTargetType(...)`: Create a standalone object of type `TargetType` that
+ *   corresponds to the input. The lifetime of the output does not depend on the
+ *   lifetime of the input.
+ * - `wrapIn(TargetType*, ...)`: Same as `inTargetType()`, but for `TargetType`
+ *   that cannot be copied and/or moved efficiently, or when there are multiple
+ *   output arguments.
+ * - `convertTo(TargetType*, ...)`: Same as `toTargetType()`, but for
+ *   `TargetType` that cannot be copied and/or moved efficiently, or when there
+ *   are multiple output arguments.
+ *
+ * `wrapIn()` and `convertTo()` functions will take output arguments before
+ * input arguments. Some of these functions might return a value to indicate
+ * success or error.
+ *
+ * In converting or wrapping something as a Treble type that contains a
+ * `hidl_handle`, `native_handle_t*` will need to be created and returned as
+ * an additional output argument, hence only `wrapIn()` or `convertTo()` would
+ * be available. The caller must call `native_handle_delete()` to deallocate the
+ * returned native handle when it is no longer needed.
+ *
+ * For types that contain file descriptors, `inTargetType()` and `wrapAs()` do
+ * not perform duplication of file descriptors, while `toTargetType()` and
+ * `convertTo()` do.
+ */
+
+/**
+ * \brief Convert `Return<void>` to `binder::Status`.
+ *
+ * \param[in] t The source `Return<void>`.
+ * \return The corresponding `binder::Status`.
+ */
+// convert: Return<void> -> ::android::binder::Status
+inline ::android::binder::Status toBinderStatus(
+        Return<void> const& t) {
+    return ::android::binder::Status::fromExceptionCode(
+            t.isOk() ? OK : UNKNOWN_ERROR,
+            t.description().c_str());
+}
+
+/**
+ * \brief Convert `Return<Status>` to `binder::Status`.
+ *
+ * \param[in] t The source `Return<Status>`.
+ * \return The corresponding `binder::Status`.
+ */
+// convert: Return<Status> -> ::android::binder::Status
+inline ::android::binder::Status toBinderStatus(
+        Return<Status> const& t) {
+    return ::android::binder::Status::fromStatusT(
+            t.isOk() ? static_cast<status_t>(static_cast<Status>(t)) : UNKNOWN_ERROR);
+}
+
+/**
+ * \brief Convert `Return<Status>` to `status_t`. This is for legacy binder
+ * calls.
+ *
+ * \param[in] t The source `Return<Status>`.
+ * \return The corresponding `status_t`.
+ *
+ * This function first check if \p t has a transport error. If it does, then the
+ * return value is the transport error code. Otherwise, the return value is
+ * converted from `Status` contained inside \p t.
+ *
+ * Note:
+ * - This `Status` is omx-specific. It is defined in `types.hal`.
+ * - The name of this function is not `convert`.
+ */
+// convert: Status -> status_t
+inline status_t toStatusT(Return<Status> const& t) {
+    return t.isOk() ? static_cast<status_t>(static_cast<Status>(t)) : UNKNOWN_ERROR;
+}
+
+/**
+ * \brief Convert `Return<void>` to `status_t`. This is for legacy binder calls.
+ *
+ * \param[in] t The source `Return<void>`.
+ * \return The corresponding `status_t`.
+ */
+// convert: Return<void> -> status_t
+inline status_t toStatusT(Return<void> const& t) {
+    return t.isOk() ? OK : UNKNOWN_ERROR;
+}
+
+/**
+ * \brief Convert `Status` to `status_t`. This is for legacy binder calls.
+ *
+ * \param[in] t The source `Status`.
+ * \return the corresponding `status_t`.
+ */
+// convert: Status -> status_t
+inline status_t toStatusT(Status const& t) {
+    return static_cast<status_t>(t);
+}
+
+/**
+ * \brief Convert `status_t` to `Status`.
+ *
+ * \param[in] l The source `status_t`.
+ * \return The corresponding `Status`.
+ */
+// convert: status_t -> Status
+inline Status toStatus(status_t l) {
+    return static_cast<Status>(l);
+}
+
+/**
+ * \brief Wrap `native_handle_t*` in `hidl_handle`.
+ *
+ * \param[in] nh The source `native_handle_t*`.
+ * \return The `hidl_handle` that points to \p nh.
+ */
+// wrap: native_handle_t* -> hidl_handle
+inline hidl_handle inHidlHandle(native_handle_t const* nh) {
+    return hidl_handle(nh);
+}
+
+/**
+ * \brief Wrap an `omx_message` and construct the corresponding `Message`.
+ *
+ * \param[out] t The wrapper of type `Message`.
+ * \param[out] nh The native_handle_t referred to by `t->fence`.
+ * \param[in] l The source `omx_message`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ *
+ * Upon success, \p nh will be created to hold the file descriptor stored in
+ * `l.fenceFd`, and `t->fence` will point to \p nh. \p nh will need to be
+ * destroyed manually by `native_handle_delete()` when \p t is no longer needed.
+ *
+ * Upon failure, \p nh will not be created and will not need to be deleted. \p t
+ * will be invalid.
+ */
+// wrap, omx_message -> Message, native_handle_t*
+inline bool wrapAs(Message* t, native_handle_t** nh, omx_message const& l) {
+    *nh = native_handle_create_from_fd(l.fenceFd);
+    if (!*nh) {
+        return false;
+    }
+    t->fence = *nh;
+    switch (l.type) {
+        case omx_message::EVENT:
+            t->type = Message::Type::EVENT;
+            t->data.eventData.event = uint32_t(l.u.event_data.event);
+            t->data.eventData.data1 = l.u.event_data.data1;
+            t->data.eventData.data2 = l.u.event_data.data2;
+            t->data.eventData.data3 = l.u.event_data.data3;
+            t->data.eventData.data4 = l.u.event_data.data4;
+            break;
+        case omx_message::EMPTY_BUFFER_DONE:
+            t->type = Message::Type::EMPTY_BUFFER_DONE;
+            t->data.bufferData.buffer = l.u.buffer_data.buffer;
+            break;
+        case omx_message::FILL_BUFFER_DONE:
+            t->type = Message::Type::FILL_BUFFER_DONE;
+            t->data.extendedBufferData.buffer = l.u.extended_buffer_data.buffer;
+            t->data.extendedBufferData.rangeOffset =
+                    l.u.extended_buffer_data.range_offset;
+            t->data.extendedBufferData.rangeLength =
+                    l.u.extended_buffer_data.range_length;
+            t->data.extendedBufferData.flags = l.u.extended_buffer_data.flags;
+            t->data.extendedBufferData.timestampUs =
+                    l.u.extended_buffer_data.timestamp;
+            break;
+        case omx_message::FRAME_RENDERED:
+            t->type = Message::Type::FRAME_RENDERED;
+            t->data.renderData.timestampUs = l.u.render_data.timestamp;
+            t->data.renderData.systemTimeNs = l.u.render_data.nanoTime;
+            break;
+        default:
+            native_handle_delete(*nh);
+            return false;
+    }
+    return true;
+}
+
+/**
+ * \brief Wrap a `Message` inside an `omx_message`.
+ *
+ * \param[out] l The wrapper of type `omx_message`.
+ * \param[in] t The source `Message`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ */
+// wrap: Message -> omx_message
+inline bool wrapAs(omx_message* l, Message const& t) {
+    l->fenceFd = native_handle_read_fd(t.fence);
+    switch (t.type) {
+        case Message::Type::EVENT:
+            l->type = omx_message::EVENT;
+            l->u.event_data.event = OMX_EVENTTYPE(t.data.eventData.event);
+            l->u.event_data.data1 = t.data.eventData.data1;
+            l->u.event_data.data2 = t.data.eventData.data2;
+            l->u.event_data.data3 = t.data.eventData.data3;
+            l->u.event_data.data4 = t.data.eventData.data4;
+            break;
+        case Message::Type::EMPTY_BUFFER_DONE:
+            l->type = omx_message::EMPTY_BUFFER_DONE;
+            l->u.buffer_data.buffer = t.data.bufferData.buffer;
+            break;
+        case Message::Type::FILL_BUFFER_DONE:
+            l->type = omx_message::FILL_BUFFER_DONE;
+            l->u.extended_buffer_data.buffer = t.data.extendedBufferData.buffer;
+            l->u.extended_buffer_data.range_offset =
+                    t.data.extendedBufferData.rangeOffset;
+            l->u.extended_buffer_data.range_length =
+                    t.data.extendedBufferData.rangeLength;
+            l->u.extended_buffer_data.flags = t.data.extendedBufferData.flags;
+            l->u.extended_buffer_data.timestamp =
+                    t.data.extendedBufferData.timestampUs;
+            break;
+        case Message::Type::FRAME_RENDERED:
+            l->type = omx_message::FRAME_RENDERED;
+            l->u.render_data.timestamp = t.data.renderData.timestampUs;
+            l->u.render_data.nanoTime = t.data.renderData.systemTimeNs;
+            break;
+        default:
+            return false;
+    }
+    return true;
+}
+
+/**
+ * \brief Similar to `wrapTo(omx_message*, Message const&)`, but the output will
+ * have an extended lifetime.
+ *
+ * \param[out] l The output `omx_message`.
+ * \param[in] t The source `Message`.
+ * \return `true` if the conversion is successful; `false` otherwise.
+ *
+ * This function calls `wrapto()`, then attempts to duplicate the file
+ * descriptor for the fence if it is not `-1`. If duplication fails, `false`
+ * will be returned.
+ */
+// convert: Message -> omx_message
+inline bool convertTo(omx_message* l, Message const& t) {
+    if (!wrapAs(l, t)) {
+        return false;
+    }
+    if (l->fenceFd == -1) {
+        return true;
+    }
+    l->fenceFd = dup(l->fenceFd);
+    return l->fenceFd != -1;
+}
+
+/**
+ * \brief Wrap an `OMXFenceParcelable` inside a `hidl_handle`.
+ *
+ * \param[out] t The wrapper of type `hidl_handle`.
+ * \param[out] nh The native handle created to hold the file descriptor inside
+ * \p l.
+ * \param[in] l The source `OMXFenceParcelable`, which essentially contains one
+ * file descriptor.
+ * \return `true` if \p t and \p nh are successfully created to wrap around \p
+ * l; `false` otherwise.
+ *
+ * On success, \p nh needs to be deleted by the caller with
+ * `native_handle_delete()` after \p t and \p nh are no longer needed.
+ *
+ * On failure, \p nh will not need to be deleted, and \p t will hold an invalid
+ * value.
+ */
+// wrap: OMXFenceParcelable -> hidl_handle, native_handle_t*
+inline bool wrapAs(hidl_handle* t, native_handle_t** nh,
+        OMXFenceParcelable const& l) {
+    *nh = native_handle_create_from_fd(l.get());
+    if (!*nh) {
+        return false;
+    }
+    *t = *nh;
+    return true;
+}
+
+/**
+ * \brief Wrap a `hidl_handle` inside an `OMXFenceParcelable`.
+ *
+ * \param[out] l The wrapper of type `OMXFenceParcelable`.
+ * \param[in] t The source `hidl_handle`.
+ */
+// wrap: hidl_handle -> OMXFenceParcelable
+inline void wrapAs(OMXFenceParcelable* l, hidl_handle const& t) {
+    l->mFenceFd = native_handle_read_fd(t);
+}
+
+/**
+ * \brief Convert a `hidl_handle` to `OMXFenceParcelable`. If `hidl_handle`
+ * contains file descriptors, the first file descriptor will be duplicated and
+ * stored in the output `OMXFenceParcelable`.
+ *
+ * \param[out] l The output `OMXFenceParcelable`.
+ * \param[in] t The input `hidl_handle`.
+ * \return `false` if \p t contains a valid file descriptor but duplication
+ * fails; `true` otherwise.
+ */
+// convert: hidl_handle -> OMXFenceParcelable
+inline bool convertTo(OMXFenceParcelable* l, hidl_handle const& t) {
+    int fd = native_handle_read_fd(t);
+    if (fd != -1) {
+        fd = dup(fd);
+        if (fd == -1) {
+            return false;
+        }
+    }
+    l->mFenceFd = fd;
+    return true;
+}
+
+/**
+ * \brief Convert `::android::ColorAspects` to `ColorAspects`.
+ *
+ * \param[in] l The source `::android::ColorAspects`.
+ * \return The corresponding `ColorAspects`.
+ */
+// convert: ::android::ColorAspects -> ColorAspects
+inline ColorAspects toHardwareColorAspects(::android::ColorAspects const& l) {
+    return ColorAspects{
+            static_cast<ColorAspects::Range>(l.mRange),
+            static_cast<ColorAspects::Primaries>(l.mPrimaries),
+            static_cast<ColorAspects::Transfer>(l.mTransfer),
+            static_cast<ColorAspects::MatrixCoeffs>(l.mMatrixCoeffs)};
+}
+
+/**
+ * \brief Convert `int32_t` to `ColorAspects`.
+ *
+ * \param[in] l The source `int32_t`.
+ * \return The corresponding `ColorAspects`.
+ */
+// convert: int32_t -> ColorAspects
+inline ColorAspects toHardwareColorAspects(int32_t l) {
+    return ColorAspects{
+            static_cast<ColorAspects::Range>((l >> 24) & 0xFF),
+            static_cast<ColorAspects::Primaries>((l >> 16) & 0xFF),
+            static_cast<ColorAspects::Transfer>(l & 0xFF),
+            static_cast<ColorAspects::MatrixCoeffs>((l >> 8) & 0xFF)};
+}
+
+/**
+ * \brief Convert `ColorAspects` to `::android::ColorAspects`.
+ *
+ * \param[in] t The source `ColorAspects`.
+ * \return The corresponding `::android::ColorAspects`.
+ */
+// convert: ColorAspects -> ::android::ColorAspects
+inline int32_t toCompactColorAspects(ColorAspects const& t) {
+    return static_cast<int32_t>(
+            (static_cast<uint32_t>(t.range) << 24) |
+            (static_cast<uint32_t>(t.primaries) << 16) |
+            (static_cast<uint32_t>(t.transfer)) |
+            (static_cast<uint32_t>(t.matrixCoeffs) << 8));
+}
+
+/**
+ * \brief Convert `int32_t` to `Dataspace`.
+ *
+ * \param[in] l The source `int32_t`.
+ * \result The corresponding `Dataspace`.
+ */
+// convert: int32_t -> Dataspace
+inline Dataspace toHardwareDataspace(int32_t l) {
+    return static_cast<Dataspace>(l);
+}
+
+/**
+ * \brief Convert `Dataspace` to `int32_t`.
+ *
+ * \param[in] t The source `Dataspace`.
+ * \result The corresponding `int32_t`.
+ */
+// convert: Dataspace -> int32_t
+inline int32_t toRawDataspace(Dataspace const& t) {
+    return static_cast<int32_t>(t);
+}
+
+/**
+ * \brief Wrap an opaque buffer inside a `hidl_vec<uint8_t>`.
+ *
+ * \param[in] l The pointer to the beginning of the opaque buffer.
+ * \param[in] size The size of the buffer.
+ * \return A `hidl_vec<uint8_t>` that points to the buffer.
+ */
+// wrap: void*, size_t -> hidl_vec<uint8_t>
+inline hidl_vec<uint8_t> inHidlBytes(void const* l, size_t size) {
+    hidl_vec<uint8_t> t;
+    t.setToExternal(static_cast<uint8_t*>(const_cast<void*>(l)), size, false);
+    return t;
+}
+
+/**
+ * \brief Create a `hidl_vec<uint8_t>` that is a copy of an opaque buffer.
+ *
+ * \param[in] l The pointer to the beginning of the opaque buffer.
+ * \param[in] size The size of the buffer.
+ * \return A `hidl_vec<uint8_t>` that is a copy of the input buffer.
+ */
+// convert: void*, size_t -> hidl_vec<uint8_t>
+inline hidl_vec<uint8_t> toHidlBytes(void const* l, size_t size) {
+    hidl_vec<uint8_t> t;
+    t.resize(size);
+    uint8_t const* src = static_cast<uint8_t const*>(l);
+    std::copy(src, src + size, t.data());
+    return t;
+}
+
+/**
+ * \brief Wrap `GraphicBuffer` in `AnwBuffer`.
+ *
+ * \param[out] t The wrapper of type `AnwBuffer`.
+ * \param[in] l The source `GraphicBuffer`.
+ */
+// wrap: GraphicBuffer -> AnwBuffer
+inline void wrapAs(AnwBuffer* t, GraphicBuffer const& l) {
+    t->attr.width = l.getWidth();
+    t->attr.height = l.getHeight();
+    t->attr.stride = l.getStride();
+    t->attr.format = static_cast<PixelFormat>(l.getPixelFormat());
+    t->attr.layerCount = l.getLayerCount();
+    t->attr.usage = l.getUsage();
+    t->attr.id = l.getId();
+    t->attr.generationNumber = l.getGenerationNumber();
+    t->nativeHandle = hidl_handle(l.handle);
+}
+
+/**
+ * \brief Convert `AnwBuffer` to `GraphicBuffer`.
+ *
+ * \param[out] l The destination `GraphicBuffer`.
+ * \param[in] t The source `AnwBuffer`.
+ *
+ * This function will duplicate all file descriptors in \p t.
+ */
+// convert: AnwBuffer -> GraphicBuffer
+// Ref: frameworks/native/libs/ui/GraphicBuffer.cpp: GraphicBuffer::flatten
+inline bool convertTo(GraphicBuffer* l, AnwBuffer const& t) {
+    native_handle_t* handle = t.nativeHandle == nullptr ?
+            nullptr : native_handle_clone(t.nativeHandle);
+
+    size_t const numInts = 12 + (handle ? handle->numInts : 0);
+    int32_t* ints = new int32_t[numInts];
+
+    size_t numFds = static_cast<size_t>(handle ? handle->numFds : 0);
+    int* fds = new int[numFds];
+
+    ints[0] = 'GBFR';
+    ints[1] = static_cast<int32_t>(t.attr.width);
+    ints[2] = static_cast<int32_t>(t.attr.height);
+    ints[3] = static_cast<int32_t>(t.attr.stride);
+    ints[4] = static_cast<int32_t>(t.attr.format);
+    ints[5] = static_cast<int32_t>(t.attr.layerCount);
+    ints[6] = static_cast<int32_t>(t.attr.usage);
+    ints[7] = static_cast<int32_t>(t.attr.id >> 32);
+    ints[8] = static_cast<int32_t>(t.attr.id & 0xFFFFFFFF);
+    ints[9] = static_cast<int32_t>(t.attr.generationNumber);
+    ints[10] = 0;
+    ints[11] = 0;
+    if (handle) {
+        ints[10] = static_cast<int32_t>(handle->numFds);
+        ints[11] = static_cast<int32_t>(handle->numInts);
+        int* intsStart = handle->data + handle->numFds;
+        std::copy(handle->data, intsStart, fds);
+        std::copy(intsStart, intsStart + handle->numInts, &ints[12]);
+    }
+
+    void const* constBuffer = static_cast<void const*>(ints);
+    size_t size = numInts * sizeof(int32_t);
+    int const* constFds = static_cast<int const*>(fds);
+    status_t status = l->unflatten(constBuffer, size, constFds, numFds);
+
+    delete [] fds;
+    delete [] ints;
+    native_handle_delete(handle);
+    return status == NO_ERROR;
+}
+
+/**
+ * \brief Wrap `OMXBuffer` in `CodecBuffer`.
+ *
+ * \param[out] t The wrapper of type `CodecBuffer`.
+ * \param[in] l The source `OMXBuffer`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ */
+// wrap: OMXBuffer -> CodecBuffer
+inline bool wrapAs(CodecBuffer* t, OMXBuffer const& l) {
+    t->sharedMemory = hidl_memory();
+    t->nativeHandle = hidl_handle();
+    switch (l.mBufferType) {
+        case OMXBuffer::kBufferTypeInvalid: {
+            t->type = CodecBuffer::Type::INVALID;
+            return true;
+        }
+        case OMXBuffer::kBufferTypePreset: {
+            t->type = CodecBuffer::Type::PRESET;
+            t->attr.preset.rangeLength = static_cast<uint32_t>(l.mRangeLength);
+            t->attr.preset.rangeOffset = static_cast<uint32_t>(l.mRangeOffset);
+            return true;
+        }
+        case OMXBuffer::kBufferTypeHidlMemory: {
+            t->type = CodecBuffer::Type::SHARED_MEM;
+            t->sharedMemory = l.mHidlMemory;
+            return true;
+        }
+        case OMXBuffer::kBufferTypeSharedMem: {
+            // This is not supported.
+            return false;
+        }
+        case OMXBuffer::kBufferTypeANWBuffer: {
+            t->type = CodecBuffer::Type::ANW_BUFFER;
+            if (l.mGraphicBuffer == nullptr) {
+                t->attr.anwBuffer.width = 0;
+                t->attr.anwBuffer.height = 0;
+                t->attr.anwBuffer.stride = 0;
+                t->attr.anwBuffer.format = static_cast<PixelFormat>(1);
+                t->attr.anwBuffer.layerCount = 0;
+                t->attr.anwBuffer.usage = 0;
+                return true;
+            }
+            t->attr.anwBuffer.width = l.mGraphicBuffer->getWidth();
+            t->attr.anwBuffer.height = l.mGraphicBuffer->getHeight();
+            t->attr.anwBuffer.stride = l.mGraphicBuffer->getStride();
+            t->attr.anwBuffer.format = static_cast<PixelFormat>(
+                    l.mGraphicBuffer->getPixelFormat());
+            t->attr.anwBuffer.layerCount = l.mGraphicBuffer->getLayerCount();
+            t->attr.anwBuffer.usage = l.mGraphicBuffer->getUsage();
+            t->nativeHandle = l.mGraphicBuffer->handle;
+            return true;
+        }
+        case OMXBuffer::kBufferTypeNativeHandle: {
+            t->type = CodecBuffer::Type::NATIVE_HANDLE;
+            t->nativeHandle = l.mNativeHandle->handle();
+            return true;
+        }
+    }
+    return false;
+}
+
+/**
+ * \brief Convert `CodecBuffer` to `OMXBuffer`.
+ *
+ * \param[out] l The destination `OMXBuffer`.
+ * \param[in] t The source `CodecBuffer`.
+ * \return `true` if successful; `false` otherwise.
+ */
+// convert: CodecBuffer -> OMXBuffer
+inline bool convertTo(OMXBuffer* l, CodecBuffer const& t) {
+    switch (t.type) {
+        case CodecBuffer::Type::INVALID: {
+            *l = OMXBuffer();
+            return true;
+        }
+        case CodecBuffer::Type::PRESET: {
+            *l = OMXBuffer(
+                    t.attr.preset.rangeOffset,
+                    t.attr.preset.rangeLength);
+            return true;
+        }
+        case CodecBuffer::Type::SHARED_MEM: {
+            *l = OMXBuffer(t.sharedMemory);
+            return true;
+        }
+        case CodecBuffer::Type::ANW_BUFFER: {
+            if (t.nativeHandle.getNativeHandle() == nullptr) {
+                *l = OMXBuffer(sp<GraphicBuffer>(nullptr));
+                return true;
+            }
+            AnwBuffer anwBuffer;
+            anwBuffer.nativeHandle = t.nativeHandle;
+            anwBuffer.attr = t.attr.anwBuffer;
+            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
+            if (!convertTo(graphicBuffer.get(), anwBuffer)) {
+                return false;
+            }
+            *l = OMXBuffer(graphicBuffer);
+            return true;
+        }
+        case CodecBuffer::Type::NATIVE_HANDLE: {
+            *l = OMXBuffer(NativeHandle::create(
+                    native_handle_clone(t.nativeHandle), true));
+            return true;
+        }
+    }
+    return false;
+}
+
+/**
+ * \brief Convert `IOMX::ComponentInfo` to `IOmx::ComponentInfo`.
+ *
+ * \param[out] t The destination `IOmx::ComponentInfo`.
+ * \param[in] l The source `IOMX::ComponentInfo`.
+ */
+// convert: IOMX::ComponentInfo -> IOmx::ComponentInfo
+inline bool convertTo(IOmx::ComponentInfo* t, IOMX::ComponentInfo const& l) {
+    t->mName = l.mName.string();
+    t->mRoles.resize(l.mRoles.size());
+    size_t i = 0;
+    for (auto& role : l.mRoles) {
+        t->mRoles[i++] = role.string();
+    }
+    return true;
+}
+
+/**
+ * \brief Convert `IOmx::ComponentInfo` to `IOMX::ComponentInfo`.
+ *
+ * \param[out] l The destination `IOMX::ComponentInfo`.
+ * \param[in] t The source `IOmx::ComponentInfo`.
+ */
+// convert: IOmx::ComponentInfo -> IOMX::ComponentInfo
+inline bool convertTo(IOMX::ComponentInfo* l, IOmx::ComponentInfo const& t) {
+    l->mName = t.mName.c_str();
+    l->mRoles.clear();
+    for (size_t i = 0; i < t.mRoles.size(); ++i) {
+        l->mRoles.push_back(String8(t.mRoles[i].c_str()));
+    }
+    return true;
+}
+
+/**
+ * \brief Convert `OMX_BOOL` to `bool`.
+ *
+ * \param[in] l The source `OMX_BOOL`.
+ * \return The destination `bool`.
+ */
+// convert: OMX_BOOL -> bool
+inline bool toRawBool(OMX_BOOL l) {
+    return l == OMX_FALSE ? false : true;
+}
+
+/**
+ * \brief Convert `bool` to `OMX_BOOL`.
+ *
+ * \param[in] t The source `bool`.
+ * \return The destination `OMX_BOOL`.
+ */
+// convert: bool -> OMX_BOOL
+inline OMX_BOOL toEnumBool(bool t) {
+    return t ? OMX_TRUE : OMX_FALSE;
+}
+
+/**
+ * \brief Convert `OMX_COMMANDTYPE` to `uint32_t`.
+ *
+ * \param[in] l The source `OMX_COMMANDTYPE`.
+ * \return The underlying value of type `uint32_t`.
+ *
+ * `OMX_COMMANDTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: OMX_COMMANDTYPE -> uint32_t
+inline uint32_t toRawCommandType(OMX_COMMANDTYPE l) {
+    return static_cast<uint32_t>(l);
+}
+
+/**
+ * \brief Convert `uint32_t` to `OMX_COMMANDTYPE`.
+ *
+ * \param[in] t The source `uint32_t`.
+ * \return The corresponding enum value of type `OMX_COMMANDTYPE`.
+ *
+ * `OMX_COMMANDTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: uint32_t -> OMX_COMMANDTYPE
+inline OMX_COMMANDTYPE toEnumCommandType(uint32_t t) {
+    return static_cast<OMX_COMMANDTYPE>(t);
+}
+
+/**
+ * \brief Convert `OMX_INDEXTYPE` to `uint32_t`.
+ *
+ * \param[in] l The source `OMX_INDEXTYPE`.
+ * \return The underlying value of type `uint32_t`.
+ *
+ * `OMX_INDEXTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: OMX_INDEXTYPE -> uint32_t
+inline uint32_t toRawIndexType(OMX_INDEXTYPE l) {
+    return static_cast<uint32_t>(l);
+}
+
+/**
+ * \brief Convert `uint32_t` to `OMX_INDEXTYPE`.
+ *
+ * \param[in] t The source `uint32_t`.
+ * \return The corresponding enum value of type `OMX_INDEXTYPE`.
+ *
+ * `OMX_INDEXTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: uint32_t -> OMX_INDEXTYPE
+inline OMX_INDEXTYPE toEnumIndexType(uint32_t t) {
+    return static_cast<OMX_INDEXTYPE>(t);
+}
+
+/**
+ * \brief Convert `IOMX::PortMode` to `PortMode`.
+ *
+ * \param[in] l The source `IOMX::PortMode`.
+ * \return The destination `PortMode`.
+ */
+// convert: IOMX::PortMode -> PortMode
+inline PortMode toHardwarePortMode(IOMX::PortMode l) {
+    return static_cast<PortMode>(l);
+}
+
+/**
+ * \brief Convert `PortMode` to `IOMX::PortMode`.
+ *
+ * \param[in] t The source `PortMode`.
+ * \return The destination `IOMX::PortMode`.
+ */
+// convert: PortMode -> IOMX::PortMode
+inline IOMX::PortMode toIOMXPortMode(PortMode t) {
+    return static_cast<IOMX::PortMode>(t);
+}
+
+/**
+ * \brief Convert `OMX_TICKS` to `uint64_t`.
+ *
+ * \param[in] l The source `OMX_TICKS`.
+ * \return The destination `uint64_t`.
+ */
+// convert: OMX_TICKS -> uint64_t
+inline uint64_t toRawTicks(OMX_TICKS l) {
+#ifndef OMX_SKIP64BIT
+    return static_cast<uint64_t>(l);
+#else
+    return static_cast<uint64_t>(l.nLowPart) |
+            static_cast<uint64_t>(l.nHighPart << 32);
+#endif
+}
+
+/**
+ * \brief Convert `uint64_t` to `OMX_TICKS`.
+ *
+ * \param[in] l The source `uint64_t`.
+ * \return The destination `OMX_TICKS`.
+ */
+// convert: uint64_t -> OMX_TICKS
+inline OMX_TICKS toOMXTicks(uint64_t t) {
+#ifndef OMX_SKIP64BIT
+    return static_cast<OMX_TICKS>(t);
+#else
+    return OMX_TICKS{
+            static_cast<uint32_t>(t & 0xFFFFFFFF),
+            static_cast<uint32_t>(t >> 32)};
+#endif
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
diff --git a/include/media/omx/1.0/WGraphicBufferSource.h b/include/media/omx/1.0/WGraphicBufferSource.h
new file mode 100644
index 0000000..397e576
--- /dev/null
+++ b/include/media/omx/1.0/WGraphicBufferSource.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/Binder.h>
+#include <media/IOMX.h>
+
+#include <android/hardware/graphics/common/1.0/types.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IGraphicBufferSource.h>
+
+#include <android/BnGraphicBufferSource.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::graphics::common::V1_0::Dataspace;
+using ::android::hardware::media::omx::V1_0::ColorAspects;
+using ::android::hardware::media::omx::V1_0::IGraphicBufferSource;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+using ::android::IOMXNode;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+typedef ::android::binder::Status BnStatus;
+typedef ::android::BnGraphicBufferSource BnGraphicBufferSource;
+typedef ::android::hardware::media::omx::V1_0::IGraphicBufferSource
+        TGraphicBufferSource;
+
+struct LWGraphicBufferSource : public BnGraphicBufferSource {
+    sp<TGraphicBufferSource> mBase;
+    LWGraphicBufferSource(sp<TGraphicBufferSource> const& base);
+    BnStatus configure(const sp<IOMXNode>& omxNode, int32_t dataSpace) override;
+    BnStatus setSuspend(bool suspend, int64_t timeUs) override;
+    BnStatus setRepeatPreviousFrameDelayUs(int64_t repeatAfterUs) override;
+    BnStatus setMaxFps(float maxFps) override;
+    BnStatus setTimeLapseConfig(double fps, double captureFps) override;
+    BnStatus setStartTimeUs(int64_t startTimeUs) override;
+    BnStatus setStopTimeUs(int64_t stopTimeUs) override;
+    BnStatus setColorAspects(int32_t aspects) override;
+    BnStatus setTimeOffsetUs(int64_t timeOffsetsUs) override;
+    BnStatus signalEndOfInputStream() override;
+};
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
diff --git a/include/media/omx/1.0/WOmx.h b/include/media/omx/1.0/WOmx.h
new file mode 100644
index 0000000..f13546e
--- /dev/null
+++ b/include/media/omx/1.0/WOmx.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMX_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMX_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <media/IOMX.h>
+
+#include <hidl/HybridInterface.h>
+#include <android/hardware/media/omx/1.0/IOmx.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::media::omx::V1_0::IOmx;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::List;
+using ::android::IOMX;
+using ::android::BnOMX;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmx : public BnOMX {
+    sp<IOmx> mBase;
+    LWOmx(sp<IOmx> const& base);
+    status_t listNodes(List<IOMX::ComponentInfo>* list) override;
+    status_t allocateNode(
+            char const* name,
+            sp<IOMXObserver> const& observer,
+            sp<IOMXNode>* omxNode) override;
+    status_t createInputSurface(
+            sp<::android::IGraphicBufferProducer>* bufferProducer,
+            sp<::android::IGraphicBufferSource>* bufferSource) override;
+};
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMX_H
diff --git a/include/media/omx/1.0/WOmxBufferSource.h b/include/media/omx/1.0/WOmxBufferSource.h
new file mode 100644
index 0000000..86322da
--- /dev/null
+++ b/include/media/omx/1.0/WOmxBufferSource.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/Binder.h>
+#include <OMXFenceParcelable.h>
+
+#include <android/hardware/media/omx/1.0/IOmxBufferSource.h>
+#include <android/BnOMXBufferSource.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::OMXFenceParcelable;
+using ::android::IOMXBufferSource;
+using ::android::BnOMXBufferSource;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxBufferSource : public BnOMXBufferSource {
+    sp<IOmxBufferSource> mBase;
+    LWOmxBufferSource(sp<IOmxBufferSource> const& base);
+    ::android::binder::Status onOmxExecuting() override;
+    ::android::binder::Status onOmxIdle() override;
+    ::android::binder::Status onOmxLoaded() override;
+    ::android::binder::Status onInputBufferAdded(int32_t bufferID) override;
+    ::android::binder::Status onInputBufferEmptied(
+            int32_t bufferID, OMXFenceParcelable const& fenceParcel) override;
+};
+
+struct TWOmxBufferSource : public IOmxBufferSource {
+    sp<IOMXBufferSource> mBase;
+    TWOmxBufferSource(sp<IOMXBufferSource> const& base);
+    Return<void> onOmxExecuting() override;
+    Return<void> onOmxIdle() override;
+    Return<void> onOmxLoaded() override;
+    Return<void> onInputBufferAdded(uint32_t buffer) override;
+    Return<void> onInputBufferEmptied(
+            uint32_t buffer, hidl_handle const& fence) override;
+};
+
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
diff --git a/include/media/omx/1.0/WOmxNode.h b/include/media/omx/1.0/WOmxNode.h
new file mode 100644
index 0000000..eebc8c6
--- /dev/null
+++ b/include/media/omx/1.0/WOmxNode.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <utils/Errors.h>
+#include <media/IOMX.h>
+#include <hidl/HybridInterface.h>
+
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::media::omx::V1_0::CodecBuffer;
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::hardware::media::omx::V1_0::PortMode;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxNode : public H2BConverter<IOmxNode, IOMXNode, BnOMXNode> {
+    LWOmxNode(sp<IOmxNode> const& base) : CBase(base) {}
+    status_t freeNode() override;
+    status_t sendCommand(
+            OMX_COMMANDTYPE cmd, OMX_S32 param) override;
+    status_t getParameter(
+            OMX_INDEXTYPE index, void *params, size_t size) override;
+    status_t setParameter(
+            OMX_INDEXTYPE index, const void *params, size_t size) override;
+    status_t getConfig(
+            OMX_INDEXTYPE index, void *params, size_t size) override;
+    status_t setConfig(
+            OMX_INDEXTYPE index, const void *params, size_t size) override;
+    status_t setPortMode(
+            OMX_U32 port_index, IOMX::PortMode mode) override;
+    status_t prepareForAdaptivePlayback(
+            OMX_U32 portIndex, OMX_BOOL enable,
+            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) override;
+    status_t configureVideoTunnelMode(
+            OMX_U32 portIndex, OMX_BOOL tunneled,
+            OMX_U32 audioHwSync, native_handle_t **sidebandHandle) override;
+    status_t getGraphicBufferUsage(
+            OMX_U32 port_index, OMX_U32* usage) override;
+    status_t setInputSurface(
+            const sp<IOMXBufferSource> &bufferSource) override;
+    status_t allocateSecureBuffer(
+            OMX_U32 port_index, size_t size, buffer_id *buffer,
+            void **buffer_data, sp<NativeHandle> *native_handle) override;
+    status_t useBuffer(
+            OMX_U32 port_index, const OMXBuffer &omxBuf,
+            buffer_id *buffer) override;
+    status_t freeBuffer(
+            OMX_U32 port_index, buffer_id buffer) override;
+    status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            int fenceFd = -1) override;
+    status_t emptyBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1) override;
+    status_t getExtensionIndex(
+            const char *parameter_name,
+            OMX_INDEXTYPE *index) override;
+    status_t dispatchMessage(const omx_message &msg) override;
+};
+
+struct TWOmxNode : public IOmxNode {
+    sp<IOMXNode> mBase;
+    TWOmxNode(sp<IOMXNode> const& base);
+
+    Return<Status> freeNode() override;
+    Return<Status> sendCommand(uint32_t cmd, int32_t param) override;
+    Return<void> getParameter(
+            uint32_t index, hidl_vec<uint8_t> const& inParams,
+            getParameter_cb _hidl_cb) override;
+    Return<Status> setParameter(
+            uint32_t index, hidl_vec<uint8_t> const& params) override;
+    Return<void> getConfig(
+            uint32_t index, hidl_vec<uint8_t> const& inConfig,
+            getConfig_cb _hidl_cb) override;
+    Return<Status> setConfig(
+            uint32_t index, hidl_vec<uint8_t> const& config) override;
+    Return<Status> setPortMode(uint32_t portIndex, PortMode mode) override;
+    Return<Status> prepareForAdaptivePlayback(
+            uint32_t portIndex, bool enable,
+            uint32_t maxFrameWidth, uint32_t maxFrameHeight) override;
+    Return<void> configureVideoTunnelMode(
+            uint32_t portIndex, bool tunneled, uint32_t audioHwSync,
+            configureVideoTunnelMode_cb _hidl_cb) override;
+    Return<void> getGraphicBufferUsage(
+            uint32_t portIndex,
+            getGraphicBufferUsage_cb _hidl_cb) override;
+    Return<Status> setInputSurface(
+            sp<IOmxBufferSource> const& bufferSource) override;
+    Return<void> allocateSecureBuffer(
+            uint32_t portIndex, uint64_t size,
+            allocateSecureBuffer_cb _hidl_cb) override;
+    Return<void> useBuffer(
+            uint32_t portIndex, CodecBuffer const& codecBuffer,
+            useBuffer_cb _hidl_cb) override;
+    Return<Status> freeBuffer(uint32_t portIndex, uint32_t buffer) override;
+    Return<Status> fillBuffer(
+            uint32_t buffer, CodecBuffer const& codecBuffer,
+            const hidl_handle& fence) override;
+    Return<Status> emptyBuffer(
+            uint32_t buffer, CodecBuffer const& codecBuffer,
+            uint32_t flags, uint64_t timestampUs,
+            hidl_handle const& fence) override;
+    Return<void> getExtensionIndex(
+            hidl_string const& parameterName,
+            getExtensionIndex_cb _hidl_cb) override;
+    Return<Status> dispatchMessage(Message const& msg) override;
+};
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
diff --git a/include/media/omx/1.0/WOmxObserver.h b/include/media/omx/1.0/WOmxObserver.h
new file mode 100644
index 0000000..d442218
--- /dev/null
+++ b/include/media/omx/1.0/WOmxObserver.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
+
+#include <list>
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <media/IOMX.h>
+
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::IOMXObserver;
+using ::android::BnOMXObserver;
+using ::android::omx_message;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxObserver : public BnOMXObserver {
+    sp<IOmxObserver> mBase;
+    LWOmxObserver(sp<IOmxObserver> const& base);
+    void onMessages(std::list<omx_message> const& lMessages) override;
+};
+
+struct TWOmxObserver : public IOmxObserver {
+    sp<IOMXObserver> mBase;
+    TWOmxObserver(sp<IOMXObserver> const& base);
+    Return<void> onMessages(const hidl_vec<Message>& tMessages) override;
+};
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
diff --git a/include/media/stagefright b/include/media/stagefright
new file mode 120000
index 0000000..ae324a8
--- /dev/null
+++ b/include/media/stagefright
@@ -0,0 +1 @@
+../../media/libstagefright/include
\ No newline at end of file
diff --git a/include/media/stagefright/ACodec.h b/include/media/stagefright/ACodec.h
deleted file mode 100644
index 25f7173..0000000
--- a/include/media/stagefright/ACodec.h
+++ /dev/null
@@ -1,570 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef A_CODEC_H_
-
-#define A_CODEC_H_
-
-#include <stdint.h>
-#include <android/native_window.h>
-#include <media/hardware/MetadataBufferType.h>
-#include <media/IOMX.h>
-#include <media/stagefright/foundation/AHierarchicalStateMachine.h>
-#include <media/stagefright/CodecBase.h>
-#include <media/stagefright/FrameRenderTracker.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/SkipCutBuffer.h>
-#include <utils/NativeHandle.h>
-#include <OMX_Audio.h>
-
-#define TRACK_BUFFER_TIMING     0
-
-namespace android {
-
-struct ABuffer;
-struct MemoryDealer;
-struct DescribeColorFormat2Params;
-struct DataConverter;
-
-struct ACodec : public AHierarchicalStateMachine, public CodecBase {
-    ACodec();
-
-    virtual void setNotificationMessage(const sp<AMessage> &msg);
-
-    void initiateSetup(const sp<AMessage> &msg);
-
-    virtual void initiateAllocateComponent(const sp<AMessage> &msg);
-    virtual void initiateConfigureComponent(const sp<AMessage> &msg);
-    virtual void initiateCreateInputSurface();
-    virtual void initiateSetInputSurface(const sp<PersistentSurface> &surface);
-    virtual void initiateStart();
-    virtual void initiateShutdown(bool keepComponentAllocated = false);
-
-    virtual status_t queryCapabilities(
-            const AString &name, const AString &mime, bool isEncoder,
-            sp<MediaCodecInfo::Capabilities> *caps);
-
-    virtual status_t setSurface(const sp<Surface> &surface);
-
-    virtual void signalFlush();
-    virtual void signalResume();
-
-    virtual void signalSetParameters(const sp<AMessage> &msg);
-    virtual void signalEndOfInputStream();
-    virtual void signalRequestIDRFrame();
-
-    // AHierarchicalStateMachine implements the message handling
-    virtual void onMessageReceived(const sp<AMessage> &msg) {
-        handleMessage(msg);
-    }
-
-    struct PortDescription : public CodecBase::PortDescription {
-        size_t countBuffers();
-        IOMX::buffer_id bufferIDAt(size_t index) const;
-        sp<ABuffer> bufferAt(size_t index) const;
-        sp<NativeHandle> handleAt(size_t index) const;
-        sp<RefBase> memRefAt(size_t index) const;
-
-    private:
-        friend struct ACodec;
-
-        Vector<IOMX::buffer_id> mBufferIDs;
-        Vector<sp<ABuffer> > mBuffers;
-        Vector<sp<NativeHandle> > mHandles;
-        Vector<sp<RefBase> > mMemRefs;
-
-        PortDescription();
-        void addBuffer(
-                IOMX::buffer_id id, const sp<ABuffer> &buffer,
-                const sp<NativeHandle> &handle, const sp<RefBase> &memRef);
-
-        DISALLOW_EVIL_CONSTRUCTORS(PortDescription);
-    };
-
-    static bool isFlexibleColorFormat(
-            const sp<IOMX> &omx, IOMX::node_id node,
-            uint32_t colorFormat, bool usingNativeBuffers, OMX_U32 *flexibleEquivalent);
-
-    // Returns 0 if configuration is not supported.  NOTE: this is treated by
-    // some OMX components as auto level, and by others as invalid level.
-    static int /* OMX_VIDEO_AVCLEVELTYPE */ getAVCLevelFor(
-            int width, int height, int rate, int bitrate,
-            OMX_VIDEO_AVCPROFILETYPE profile = OMX_VIDEO_AVCProfileBaseline);
-
-    // Quirk still supported, even though deprecated
-    enum Quirks {
-        kRequiresAllocateBufferOnInputPorts   = 1,
-        kRequiresAllocateBufferOnOutputPorts  = 2,
-    };
-
-    static status_t getOMXChannelMapping(size_t numChannels, OMX_AUDIO_CHANNELTYPE map[]);
-
-protected:
-    virtual ~ACodec();
-
-private:
-    struct BaseState;
-    struct UninitializedState;
-    struct LoadedState;
-    struct LoadedToIdleState;
-    struct IdleToExecutingState;
-    struct ExecutingState;
-    struct OutputPortSettingsChangedState;
-    struct ExecutingToIdleState;
-    struct IdleToLoadedState;
-    struct FlushingState;
-    struct DeathNotifier;
-
-    enum {
-        kWhatSetup                   = 'setu',
-        kWhatOMXMessage              = 'omx ',
-        // same as kWhatOMXMessage - but only used with
-        // handleMessage during OMX message-list handling
-        kWhatOMXMessageItem          = 'omxI',
-        kWhatOMXMessageList          = 'omxL',
-        kWhatInputBufferFilled       = 'inpF',
-        kWhatOutputBufferDrained     = 'outD',
-        kWhatShutdown                = 'shut',
-        kWhatFlush                   = 'flus',
-        kWhatResume                  = 'resm',
-        kWhatDrainDeferredMessages   = 'drai',
-        kWhatAllocateComponent       = 'allo',
-        kWhatConfigureComponent      = 'conf',
-        kWhatSetSurface              = 'setS',
-        kWhatCreateInputSurface      = 'cisf',
-        kWhatSetInputSurface         = 'sisf',
-        kWhatSignalEndOfInputStream  = 'eois',
-        kWhatStart                   = 'star',
-        kWhatRequestIDRFrame         = 'ridr',
-        kWhatSetParameters           = 'setP',
-        kWhatSubmitOutputMetadataBufferIfEOS = 'subm',
-        kWhatOMXDied                 = 'OMXd',
-        kWhatReleaseCodecInstance    = 'relC',
-    };
-
-    enum {
-        kPortIndexInput  = 0,
-        kPortIndexOutput = 1
-    };
-
-    enum {
-        kFlagIsSecure                                 = 1,
-        kFlagPushBlankBuffersToNativeWindowOnShutdown = 2,
-        kFlagIsGrallocUsageProtected                  = 4,
-    };
-
-    enum {
-        kVideoGrallocUsage = (GRALLOC_USAGE_HW_TEXTURE
-                            | GRALLOC_USAGE_HW_COMPOSER
-                            | GRALLOC_USAGE_EXTERNAL_DISP),
-    };
-
-    struct BufferInfo {
-        enum Status {
-            OWNED_BY_US,
-            OWNED_BY_COMPONENT,
-            OWNED_BY_UPSTREAM,
-            OWNED_BY_DOWNSTREAM,
-            OWNED_BY_NATIVE_WINDOW,
-            UNRECOGNIZED,            // not a tracked buffer
-        };
-
-        static inline Status getSafeStatus(BufferInfo *info) {
-            return info == NULL ? UNRECOGNIZED : info->mStatus;
-        }
-
-        IOMX::buffer_id mBufferID;
-        Status mStatus;
-        unsigned mDequeuedAt;
-
-        sp<ABuffer> mData;      // the client's buffer; if not using data conversion, this is the
-                                // codec buffer; otherwise, it is allocated separately
-        sp<RefBase> mMemRef;    // and a reference to the IMemory, so it does not go away
-        sp<ABuffer> mCodecData; // the codec's buffer
-        sp<RefBase> mCodecRef;  // and a reference to the IMemory
-        sp<GraphicBuffer> mGraphicBuffer;
-        sp<NativeHandle> mNativeHandle;
-        int mFenceFd;
-        FrameRenderTracker::Info *mRenderInfo;
-
-        // The following field and 4 methods are used for debugging only
-        bool mIsReadFence;
-        // Store |fenceFd| and set read/write flag. Log error, if there is already a fence stored.
-        void setReadFence(int fenceFd, const char *dbg);
-        void setWriteFence(int fenceFd, const char *dbg);
-        // Log error, if the current fence is not a read/write fence.
-        void checkReadFence(const char *dbg);
-        void checkWriteFence(const char *dbg);
-    };
-
-    static const char *_asString(BufferInfo::Status s);
-    void dumpBuffers(OMX_U32 portIndex);
-
-    // If |fd| is non-negative, waits for fence with |fd| and logs an error if it fails. Returns
-    // the error code or OK on success. If |fd| is negative, it returns OK
-    status_t waitForFence(int fd, const char *dbg);
-
-#if TRACK_BUFFER_TIMING
-    struct BufferStats {
-        int64_t mEmptyBufferTimeUs;
-        int64_t mFillBufferDoneTimeUs;
-    };
-
-    KeyedVector<int64_t, BufferStats> mBufferStats;
-#endif
-
-    sp<AMessage> mNotify;
-
-    sp<UninitializedState> mUninitializedState;
-    sp<LoadedState> mLoadedState;
-    sp<LoadedToIdleState> mLoadedToIdleState;
-    sp<IdleToExecutingState> mIdleToExecutingState;
-    sp<ExecutingState> mExecutingState;
-    sp<OutputPortSettingsChangedState> mOutputPortSettingsChangedState;
-    sp<ExecutingToIdleState> mExecutingToIdleState;
-    sp<IdleToLoadedState> mIdleToLoadedState;
-    sp<FlushingState> mFlushingState;
-    sp<SkipCutBuffer> mSkipCutBuffer;
-
-    AString mComponentName;
-    uint32_t mFlags;
-    uint32_t mQuirks;
-    sp<IOMX> mOMX;
-    sp<IBinder> mNodeBinder;
-    IOMX::node_id mNode;
-    sp<MemoryDealer> mDealer[2];
-
-    bool mUsingNativeWindow;
-    sp<ANativeWindow> mNativeWindow;
-    int mNativeWindowUsageBits;
-    android_native_rect_t mLastNativeWindowCrop;
-    int32_t mLastNativeWindowDataSpace;
-    sp<AMessage> mConfigFormat;
-    sp<AMessage> mInputFormat;
-    sp<AMessage> mOutputFormat;
-
-    // Initial output format + configuration params that is reused as the base for all subsequent
-    // format updates. This will equal to mOutputFormat until the first actual frame is received.
-    sp<AMessage> mBaseOutputFormat;
-
-    FrameRenderTracker mRenderTracker; // render information for buffers rendered by ACodec
-    Vector<BufferInfo> mBuffers[2];
-    bool mPortEOS[2];
-    status_t mInputEOSResult;
-
-    List<sp<AMessage> > mDeferredQueue;
-
-    sp<AMessage> mLastOutputFormat;
-    bool mIsVideo;
-    bool mIsEncoder;
-    bool mFatalError;
-    bool mShutdownInProgress;
-    bool mExplicitShutdown;
-    bool mIsLegacyVP9Decoder;
-
-    // If "mKeepComponentAllocated" we only transition back to Loaded state
-    // and do not release the component instance.
-    bool mKeepComponentAllocated;
-
-    int32_t mEncoderDelay;
-    int32_t mEncoderPadding;
-    int32_t mRotationDegrees;
-
-    bool mChannelMaskPresent;
-    int32_t mChannelMask;
-    unsigned mDequeueCounter;
-    MetadataBufferType mInputMetadataType;
-    MetadataBufferType mOutputMetadataType;
-    bool mLegacyAdaptiveExperiment;
-    int32_t mMetadataBuffersToSubmit;
-    size_t mNumUndequeuedBuffers;
-    sp<DataConverter> mConverter[2];
-
-    int64_t mRepeatFrameDelayUs;
-    int64_t mMaxPtsGapUs;
-    float mMaxFps;
-
-    int64_t mTimePerFrameUs;
-    int64_t mTimePerCaptureUs;
-
-    bool mCreateInputBuffersSuspended;
-
-    bool mTunneled;
-
-    OMX_INDEXTYPE mDescribeColorAspectsIndex;
-    OMX_INDEXTYPE mDescribeHDRStaticInfoIndex;
-
-    status_t setCyclicIntraMacroblockRefresh(const sp<AMessage> &msg, int32_t mode);
-    status_t allocateBuffersOnPort(OMX_U32 portIndex);
-    status_t freeBuffersOnPort(OMX_U32 portIndex);
-    status_t freeBuffer(OMX_U32 portIndex, size_t i);
-
-    status_t handleSetSurface(const sp<Surface> &surface);
-    status_t setupNativeWindowSizeFormatAndUsage(
-            ANativeWindow *nativeWindow /* nonnull */, int *finalUsage /* nonnull */,
-            bool reconnect);
-
-    status_t configureOutputBuffersFromNativeWindow(
-            OMX_U32 *nBufferCount, OMX_U32 *nBufferSize,
-            OMX_U32 *nMinUndequeuedBuffers, bool preregister);
-    status_t allocateOutputMetadataBuffers();
-    status_t submitOutputMetadataBuffer();
-    void signalSubmitOutputMetadataBufferIfEOS_workaround();
-    status_t allocateOutputBuffersFromNativeWindow();
-    status_t cancelBufferToNativeWindow(BufferInfo *info);
-    status_t freeOutputBuffersNotOwnedByComponent();
-    BufferInfo *dequeueBufferFromNativeWindow();
-
-    inline bool storingMetadataInDecodedBuffers() {
-        return mOutputMetadataType >= 0 && !mIsEncoder;
-    }
-
-    inline bool usingMetadataOnEncoderOutput() {
-        return mOutputMetadataType >= 0 && mIsEncoder;
-    }
-
-    BufferInfo *findBufferByID(
-            uint32_t portIndex, IOMX::buffer_id bufferID,
-            ssize_t *index = NULL);
-
-    status_t setComponentRole(bool isEncoder, const char *mime);
-    static const char *getComponentRole(bool isEncoder, const char *mime);
-    static status_t setComponentRole(
-            const sp<IOMX> &omx, IOMX::node_id node, const char *role);
-
-    status_t configureCodec(const char *mime, const sp<AMessage> &msg);
-
-    status_t configureTunneledVideoPlayback(int32_t audioHwSync,
-            const sp<ANativeWindow> &nativeWindow);
-
-    status_t setVideoPortFormatType(
-            OMX_U32 portIndex,
-            OMX_VIDEO_CODINGTYPE compressionFormat,
-            OMX_COLOR_FORMATTYPE colorFormat,
-            bool usingNativeBuffers = false);
-
-    status_t setSupportedOutputFormat(bool getLegacyFlexibleFormat);
-
-    status_t setupVideoDecoder(
-            const char *mime, const sp<AMessage> &msg, bool usingNativeBuffers, bool haveSwRenderer,
-            sp<AMessage> &outputformat);
-
-    status_t setupVideoEncoder(
-            const char *mime, const sp<AMessage> &msg,
-            sp<AMessage> &outputformat, sp<AMessage> &inputformat);
-
-    status_t setVideoFormatOnPort(
-            OMX_U32 portIndex,
-            int32_t width, int32_t height,
-            OMX_VIDEO_CODINGTYPE compressionFormat, float frameRate = -1.0);
-
-    // sets |portIndex| port buffer numbers to be |bufferNum|. NOTE: Component could reject
-    // this setting if the |bufferNum| is less than the minimum buffer num of the port.
-    status_t setPortBufferNum(OMX_U32 portIndex, int bufferNum);
-
-    // gets index or sets it to 0 on error. Returns error from codec.
-    status_t initDescribeColorAspectsIndex();
-
-    // sets |params|. If |readBack| is true, it re-gets them afterwards if set succeeded.
-    // returns the codec error.
-    status_t setCodecColorAspects(DescribeColorAspectsParams &params, bool readBack = false);
-
-    // gets |params|; returns the codec error. |param| should not change on error.
-    status_t getCodecColorAspects(DescribeColorAspectsParams &params);
-
-    // gets dataspace guidance from codec and platform. |params| should be set up with the color
-    // aspects to use. If |tryCodec| is true, the codec is queried first. If it succeeds, we
-    // return OK. Otherwise, we fall back to the platform guidance and return the codec error;
-    // though, we return OK if the codec failed with UNSUPPORTED, as codec guidance is optional.
-    status_t getDataSpace(
-            DescribeColorAspectsParams &params, android_dataspace *dataSpace /* nonnull */,
-            bool tryCodec);
-
-    // sets color aspects for the encoder for certain |width/height| based on |configFormat|, and
-    // set resulting color config into |outputFormat|. If |usingNativeWindow| is true, we use
-    // video defaults if config is unspecified. Returns error from the codec.
-    status_t setColorAspectsForVideoDecoder(
-            int32_t width, int32_t height, bool usingNativeWindow,
-            const sp<AMessage> &configFormat, sp<AMessage> &outputFormat);
-
-    // gets color aspects for the encoder for certain |width/height| based on |configFormat|, and
-    // set resulting color config into |outputFormat|. If |dataSpace| is non-null, it requests
-    // dataspace guidance from the codec and platform and sets it into |dataSpace|. Returns the
-    // error from the codec.
-    status_t getColorAspectsAndDataSpaceForVideoDecoder(
-            int32_t width, int32_t height, const sp<AMessage> &configFormat,
-            sp<AMessage> &outputFormat, android_dataspace *dataSpace);
-
-    // sets color aspects for the video encoder assuming bytebuffer mode for certain |configFormat|
-    // and sets resulting color config into |outputFormat|. For mediarecorder, also set dataspace
-    // into |inputFormat|. Returns the error from the codec.
-    status_t setColorAspectsForVideoEncoder(
-            const sp<AMessage> &configFormat,
-            sp<AMessage> &outputFormat, sp<AMessage> &inputFormat);
-
-    // sets color aspects for the video encoder in surface mode. This basically sets the default
-    // video values for unspecified aspects and sets the dataspace to use in the input format.
-    // Also sets the dataspace into |dataSpace|.
-    // Returns any codec errors during this configuration, except for optional steps.
-    status_t setInitialColorAspectsForVideoEncoderSurfaceAndGetDataSpace(
-            android_dataspace *dataSpace /* nonnull */);
-
-    // gets color aspects for the video encoder input port and sets them into the |format|.
-    // Returns any codec errors.
-    status_t getInputColorAspectsForVideoEncoder(sp<AMessage> &format);
-
-    // updates the encoder output format with |aspects| defaulting to |dataSpace| for
-    // unspecified values.
-    void onDataSpaceChanged(android_dataspace dataSpace, const ColorAspects &aspects);
-
-    // gets index or sets it to 0 on error. Returns error from codec.
-    status_t initDescribeHDRStaticInfoIndex();
-
-    // sets HDR static metadata for the video encoder/decoder based on |configFormat|, and
-    // sets resulting HDRStaticInfo config into |outputFormat|. Returns error from the codec.
-    status_t setHDRStaticInfoForVideoCodec(
-            OMX_U32 portIndex, const sp<AMessage> &configFormat, sp<AMessage> &outputFormat);
-
-    // sets |params|. Returns the codec error.
-    status_t setHDRStaticInfo(const DescribeHDRStaticInfoParams &params);
-
-    // gets |params|. Returns the codec error.
-    status_t getHDRStaticInfo(DescribeHDRStaticInfoParams &params);
-
-    // gets HDR static information for the video encoder/decoder port and sets them into |format|.
-    status_t getHDRStaticInfoForVideoCodec(OMX_U32 portIndex, sp<AMessage> &format);
-
-    typedef struct drcParams {
-        int32_t drcCut;
-        int32_t drcBoost;
-        int32_t heavyCompression;
-        int32_t targetRefLevel;
-        int32_t encodedTargetLevel;
-    } drcParams_t;
-
-    status_t setupAACCodec(
-            bool encoder,
-            int32_t numChannels, int32_t sampleRate, int32_t bitRate,
-            int32_t aacProfile, bool isADTS, int32_t sbrMode,
-            int32_t maxOutputChannelCount, const drcParams_t& drc,
-            int32_t pcmLimiterEnable);
-
-    status_t setupAC3Codec(bool encoder, int32_t numChannels, int32_t sampleRate);
-
-    status_t setupEAC3Codec(bool encoder, int32_t numChannels, int32_t sampleRate);
-
-    status_t selectAudioPortFormat(
-            OMX_U32 portIndex, OMX_AUDIO_CODINGTYPE desiredFormat);
-
-    status_t setupAMRCodec(bool encoder, bool isWAMR, int32_t bitRate);
-    status_t setupG711Codec(bool encoder, int32_t sampleRate, int32_t numChannels);
-
-    status_t setupFlacCodec(
-            bool encoder, int32_t numChannels, int32_t sampleRate, int32_t compressionLevel);
-
-    status_t setupRawAudioFormat(
-            OMX_U32 portIndex, int32_t sampleRate, int32_t numChannels,
-            AudioEncoding encoding = kAudioEncodingPcm16bit);
-
-    status_t setPriority(int32_t priority);
-    status_t setOperatingRate(float rateFloat, bool isVideo);
-    status_t getIntraRefreshPeriod(uint32_t *intraRefreshPeriod);
-    status_t setIntraRefreshPeriod(uint32_t intraRefreshPeriod, bool inConfigure);
-
-    // Configures temporal layering based on |msg|. |inConfigure| shall be true iff this is called
-    // during configure() call. on success the configured layering is set in |outputFormat|. If
-    // |outputFormat| is mOutputFormat, it is copied to trigger an output format changed event.
-    status_t configureTemporalLayers(
-            const sp<AMessage> &msg, bool inConfigure, sp<AMessage> &outputFormat);
-
-    status_t setMinBufferSize(OMX_U32 portIndex, size_t size);
-
-    status_t setupMPEG4EncoderParameters(const sp<AMessage> &msg);
-    status_t setupH263EncoderParameters(const sp<AMessage> &msg);
-    status_t setupAVCEncoderParameters(const sp<AMessage> &msg);
-    status_t setupHEVCEncoderParameters(const sp<AMessage> &msg);
-    status_t setupVPXEncoderParameters(const sp<AMessage> &msg, sp<AMessage> &outputFormat);
-
-    status_t verifySupportForProfileAndLevel(int32_t profile, int32_t level);
-
-    status_t configureBitrate(
-            int32_t bitrate, OMX_VIDEO_CONTROLRATETYPE bitrateMode);
-
-    status_t setupErrorCorrectionParameters();
-
-    status_t initNativeWindow();
-
-    // Returns true iff all buffers on the given port have status
-    // OWNED_BY_US or OWNED_BY_NATIVE_WINDOW.
-    bool allYourBuffersAreBelongToUs(OMX_U32 portIndex);
-
-    bool allYourBuffersAreBelongToUs();
-
-    void waitUntilAllPossibleNativeWindowBuffersAreReturnedToUs();
-
-    size_t countBuffersOwnedByComponent(OMX_U32 portIndex) const;
-    size_t countBuffersOwnedByNativeWindow() const;
-
-    void deferMessage(const sp<AMessage> &msg);
-    void processDeferredMessages();
-
-    void onFrameRendered(int64_t mediaTimeUs, nsecs_t systemNano);
-    // called when we have dequeued a buffer |buf| from the native window to track render info.
-    // |fenceFd| is the dequeue fence, and |info| points to the buffer info where this buffer is
-    // stored.
-    void updateRenderInfoForDequeuedBuffer(
-            ANativeWindowBuffer *buf, int fenceFd, BufferInfo *info);
-
-    // Checks to see if any frames have rendered up until |until|, and to notify client
-    // (MediaCodec) of rendered frames up-until the frame pointed to by |until| or the first
-    // unrendered frame. These frames are removed from the render queue.
-    // If |dropIncomplete| is true, unrendered frames up-until |until| will be dropped from the
-    // queue, allowing all rendered framed up till then to be notified of.
-    // (This will effectively clear the render queue up-until (and including) |until|.)
-    // If |until| is NULL, or is not in the rendered queue, this method will check all frames.
-    void notifyOfRenderedFrames(
-            bool dropIncomplete = false, FrameRenderTracker::Info *until = NULL);
-
-    // Pass |expectedFormat| to print a warning if the format differs from it.
-    // Using sp<> instead of const sp<>& because expectedFormat is likely the current mOutputFormat
-    // which will get updated inside.
-    void onOutputFormatChanged(sp<const AMessage> expectedFormat = NULL);
-    void addKeyFormatChangesToRenderBufferNotification(sp<AMessage> &notify);
-    void sendFormatChange();
-
-    status_t getPortFormat(OMX_U32 portIndex, sp<AMessage> &notify);
-
-    void signalError(
-            OMX_ERRORTYPE error = OMX_ErrorUndefined,
-            status_t internalError = UNKNOWN_ERROR);
-
-    static bool describeDefaultColorFormat(DescribeColorFormat2Params &describeParams);
-    static bool describeColorFormat(
-        const sp<IOMX> &omx, IOMX::node_id node,
-        DescribeColorFormat2Params &describeParams);
-
-    status_t requestIDRFrame();
-    status_t setParameters(const sp<AMessage> &params);
-
-    // Send EOS on input stream.
-    void onSignalEndOfInputStream();
-
-    DISALLOW_EVIL_CONSTRUCTORS(ACodec);
-};
-
-}  // namespace android
-
-#endif  // A_CODEC_H_
diff --git a/include/media/stagefright/AudioSource.h b/include/media/stagefright/AudioSource.h
deleted file mode 100644
index 2ec89a4..0000000
--- a/include/media/stagefright/AudioSource.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef AUDIO_SOURCE_H_
-
-#define AUDIO_SOURCE_H_
-
-#include <media/AudioRecord.h>
-#include <media/AudioSystem.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MediaBuffer.h>
-#include <utils/List.h>
-
-#include <system/audio.h>
-
-namespace android {
-
-class AudioRecord;
-
-struct AudioSource : public MediaSource, public MediaBufferObserver {
-    // Note that the "channels" parameter _is_ the number of channels,
-    // _not_ a bitmask of audio_channels_t constants.
-    AudioSource(
-            audio_source_t inputSource,
-            const String16 &opPackageName,
-            uint32_t sampleRate,
-            uint32_t channels,
-            uint32_t outSampleRate = 0,
-            uid_t uid = -1,
-            pid_t pid = -1);
-
-    status_t initCheck() const;
-
-    virtual status_t start(MetaData *params = NULL);
-    virtual status_t stop() { return reset(); }
-    virtual sp<MetaData> getFormat();
-
-    // Returns the maximum amplitude since last call.
-    int16_t getMaxAmplitude();
-
-    virtual status_t read(
-            MediaBuffer **buffer, const ReadOptions *options = NULL);
-
-    status_t dataCallback(const AudioRecord::Buffer& buffer);
-    virtual void signalBufferReturned(MediaBuffer *buffer);
-
-protected:
-    virtual ~AudioSource();
-
-private:
-    enum {
-        kMaxBufferSize = 2048,
-
-        // After the initial mute, we raise the volume linearly
-        // over kAutoRampDurationUs.
-        kAutoRampDurationUs = 300000,
-
-        // This is the initial mute duration to suppress
-        // the video recording signal tone
-        kAutoRampStartUs = 0,
-    };
-
-    Mutex mLock;
-    Condition mFrameAvailableCondition;
-    Condition mFrameEncodingCompletionCondition;
-
-    sp<AudioRecord> mRecord;
-    status_t mInitCheck;
-    bool mStarted;
-    int32_t mSampleRate;
-    int32_t mOutSampleRate;
-
-    bool mTrackMaxAmplitude;
-    int64_t mStartTimeUs;
-    int16_t mMaxAmplitude;
-    int64_t mPrevSampleTimeUs;
-    int64_t mInitialReadTimeUs;
-    int64_t mNumFramesReceived;
-    int64_t mNumClientOwnedBuffers;
-
-    List<MediaBuffer * > mBuffersReceived;
-
-    void trackMaxAmplitude(int16_t *data, int nSamples);
-
-    // This is used to raise the volume from mute to the
-    // actual level linearly.
-    void rampVolume(
-        int32_t startFrame, int32_t rampDurationFrames,
-        uint8_t *data,   size_t bytes);
-
-    void queueInputBuffer_l(MediaBuffer *buffer, int64_t timeUs);
-    void releaseQueuedFrames_l();
-    void waitOutstandingEncodingFrames_l();
-    status_t reset();
-
-    AudioSource(const AudioSource &);
-    AudioSource &operator=(const AudioSource &);
-};
-
-}  // namespace android
-
-#endif  // AUDIO_SOURCE_H_
diff --git a/include/media/stagefright/CameraSource.h b/include/media/stagefright/CameraSource.h
deleted file mode 100644
index c2e75a6..0000000
--- a/include/media/stagefright/CameraSource.h
+++ /dev/null
@@ -1,322 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef CAMERA_SOURCE_H_
-
-#define CAMERA_SOURCE_H_
-
-#include <media/stagefright/MediaBuffer.h>
-#include <media/stagefright/MediaSource.h>
-#include <camera/android/hardware/ICamera.h>
-#include <camera/ICameraRecordingProxy.h>
-#include <camera/ICameraRecordingProxyListener.h>
-#include <camera/CameraParameters.h>
-#include <gui/BufferItemConsumer.h>
-#include <utils/List.h>
-#include <utils/RefBase.h>
-#include <utils/String16.h>
-#include <MetadataBufferType.h>
-
-namespace android {
-
-class IMemory;
-class Camera;
-class Surface;
-
-class CameraSource : public MediaSource, public MediaBufferObserver {
-public:
-    /**
-     * Factory method to create a new CameraSource using the current
-     * settings (such as video size, frame rate, color format, etc)
-     * from the default camera.
-     *
-     * @param clientName The package/process name of the client application.
-     *    This is used for permissions checking.
-     * @return NULL on error.
-     */
-    static CameraSource *Create(const String16 &clientName);
-
-    /**
-     * Factory method to create a new CameraSource.
-     *
-     * @param camera the video input frame data source. If it is NULL,
-     *          we will try to connect to the camera with the given
-     *          cameraId.
-     *
-     * @param cameraId the id of the camera that the source will connect
-     *          to if camera is NULL; otherwise ignored.
-     * @param clientName the package/process name of the camera-using
-     *          application if camera is NULL; otherwise ignored. Used for
-     *          permissions checking.
-     * @param clientUid the UID of the camera-using application if camera is
-     *          NULL; otherwise ignored. Used for permissions checking.
-     * @param clientPid the PID of the camera-using application if camera is
-     *          NULL; otherwise ignored. Used for permissions checking.
-     * @param videoSize the dimension (in pixels) of the video frame
-     * @param frameRate the target frames per second
-     * @param surface the preview surface for display where preview
-     *          frames are sent to
-     * @param storeMetaDataInVideoBuffers true to request the camera
-     *          source to store meta data in video buffers; false to
-     *          request the camera source to store real YUV frame data
-     *          in the video buffers. The camera source may not support
-     *          storing meta data in video buffers, if so, a request
-     *          to do that will NOT be honored. To find out whether
-     *          meta data is actually being stored in video buffers
-     *          during recording, call isMetaDataStoredInVideoBuffers().
-     *
-     * @return NULL on error.
-     */
-    static CameraSource *CreateFromCamera(const sp<hardware::ICamera> &camera,
-                                          const sp<ICameraRecordingProxy> &proxy,
-                                          int32_t cameraId,
-                                          const String16& clientName,
-                                          uid_t clientUid,
-                                          pid_t clientPid,
-                                          Size videoSize,
-                                          int32_t frameRate,
-                                          const sp<IGraphicBufferProducer>& surface,
-                                          bool storeMetaDataInVideoBuffers = true);
-
-    virtual ~CameraSource();
-
-    virtual status_t start(MetaData *params = NULL);
-    virtual status_t stop() { return reset(); }
-    virtual status_t read(
-            MediaBuffer **buffer, const ReadOptions *options = NULL);
-
-    /**
-     * Check whether a CameraSource object is properly initialized.
-     * Must call this method before stop().
-     * @return OK if initialization has successfully completed.
-     */
-    virtual status_t initCheck() const;
-
-    /**
-     * Returns the MetaData associated with the CameraSource,
-     * including:
-     * kKeyColorFormat: YUV color format of the video frames
-     * kKeyWidth, kKeyHeight: dimension (in pixels) of the video frames
-     * kKeySampleRate: frame rate in frames per second
-     * kKeyMIMEType: always fixed to be MEDIA_MIMETYPE_VIDEO_RAW
-     */
-    virtual sp<MetaData> getFormat();
-
-    /**
-     * Tell whether this camera source stores meta data or real YUV
-     * frame data in video buffers.
-     *
-     * @return a valid type if meta data is stored in the video
-     *      buffers; kMetadataBufferTypeInvalid if real YUV data is stored in
-     *      the video buffers.
-     */
-    MetadataBufferType metaDataStoredInVideoBuffers() const;
-
-    virtual void signalBufferReturned(MediaBuffer* buffer);
-
-protected:
-
-    /**
-     * The class for listening to BnCameraRecordingProxyListener. This is used to receive video
-     * buffers in VIDEO_BUFFER_MODE_DATA_CALLBACK_YUV and VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA
-     * mode. When a frame is available, CameraSource::dataCallbackTimestamp() will be called.
-     */
-    class ProxyListener: public BnCameraRecordingProxyListener {
-    public:
-        ProxyListener(const sp<CameraSource>& source);
-        virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType,
-                const sp<IMemory> &data);
-        virtual void recordingFrameHandleCallbackTimestamp(int64_t timestampUs,
-                native_handle_t* handle);
-
-    private:
-        sp<CameraSource> mSource;
-    };
-
-    /**
-     * The class for listening to BufferQueue's onFrameAvailable. This is used to receive video
-     * buffers in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode. When a frame is available,
-     * CameraSource::processBufferQueueFrame() will be called.
-     */
-    class BufferQueueListener : public Thread,  public BufferItemConsumer::FrameAvailableListener {
-    public:
-        BufferQueueListener(const sp<BufferItemConsumer> &consumer,
-                const sp<CameraSource> &cameraSource);
-        virtual void onFrameAvailable(const BufferItem& item);
-        virtual bool threadLoop();
-    private:
-        static const nsecs_t kFrameAvailableTimeout = 50000000; // 50ms
-
-        sp<BufferItemConsumer> mConsumer;
-        sp<CameraSource> mCameraSource;
-
-        Mutex mLock;
-        Condition mFrameAvailableSignal;
-        bool mFrameAvailable;
-    };
-
-    // isBinderAlive needs linkToDeath to work.
-    class DeathNotifier: public IBinder::DeathRecipient {
-    public:
-        DeathNotifier() {}
-        virtual void binderDied(const wp<IBinder>& who);
-    };
-
-    enum CameraFlags {
-        FLAGS_SET_CAMERA = 1L << 0,
-        FLAGS_HOT_CAMERA = 1L << 1,
-    };
-
-    int32_t  mCameraFlags;
-    Size     mVideoSize;
-    int32_t  mNumInputBuffers;
-    int32_t  mVideoFrameRate;
-    int32_t  mColorFormat;
-    int32_t  mEncoderFormat;
-    int32_t  mEncoderDataSpace;
-    status_t mInitCheck;
-
-    sp<Camera>   mCamera;
-    sp<ICameraRecordingProxy>   mCameraRecordingProxy;
-    sp<DeathNotifier> mDeathNotifier;
-    sp<IGraphicBufferProducer>  mSurface;
-    sp<MetaData> mMeta;
-
-    int64_t mStartTimeUs;
-    int32_t mNumFramesReceived;
-    int64_t mLastFrameTimestampUs;
-    bool mStarted;
-    int32_t mNumFramesEncoded;
-
-    // Time between capture of two frames.
-    int64_t mTimeBetweenFrameCaptureUs;
-
-    CameraSource(const sp<hardware::ICamera>& camera, const sp<ICameraRecordingProxy>& proxy,
-                 int32_t cameraId, const String16& clientName, uid_t clientUid, pid_t clientPid,
-                 Size videoSize, int32_t frameRate,
-                 const sp<IGraphicBufferProducer>& surface,
-                 bool storeMetaDataInVideoBuffers);
-
-    virtual status_t startCameraRecording();
-    virtual void releaseRecordingFrame(const sp<IMemory>& frame);
-    virtual void releaseRecordingFrameHandle(native_handle_t* handle);
-
-    // Returns true if need to skip the current frame.
-    // Called from dataCallbackTimestamp.
-    virtual bool skipCurrentFrame(int64_t timestampUs) {return false;}
-
-    // Callback called when still camera raw data is available.
-    virtual void dataCallback(int32_t msgType, const sp<IMemory> &data) {}
-
-    virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType,
-            const sp<IMemory> &data);
-
-    virtual void recordingFrameHandleCallbackTimestamp(int64_t timestampUs,
-            native_handle_t* handle);
-
-    // Process a buffer item received in BufferQueueListener.
-    virtual void processBufferQueueFrame(BufferItem& buffer);
-
-    void releaseCamera();
-
-private:
-    friend struct CameraSourceListener;
-
-    Mutex mLock;
-    Condition mFrameAvailableCondition;
-    Condition mFrameCompleteCondition;
-    List<sp<IMemory> > mFramesReceived;
-    List<sp<IMemory> > mFramesBeingEncoded;
-    List<int64_t> mFrameTimes;
-
-    int64_t mFirstFrameTimeUs;
-    int32_t mNumFramesDropped;
-    int32_t mNumGlitches;
-    int64_t mGlitchDurationThresholdUs;
-    bool mCollectStats;
-
-    // The mode video buffers are received from camera. One of VIDEO_BUFFER_MODE_*.
-    int32_t mVideoBufferMode;
-
-    static const uint32_t kDefaultVideoBufferCount = 32;
-
-    /**
-     * The following variables are used in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
-     */
-    static const size_t kConsumerBufferCount = 8;
-    static const nsecs_t kMemoryBaseAvailableTimeoutNs = 200000000; // 200ms
-    // Consumer and producer of the buffer queue between this class and camera.
-    sp<BufferItemConsumer> mVideoBufferConsumer;
-    sp<IGraphicBufferProducer> mVideoBufferProducer;
-    // Memory used to send the buffers to encoder, where sp<IMemory> stores VideoNativeMetadata.
-    sp<IMemoryHeap> mMemoryHeapBase;
-    List<sp<IMemory>> mMemoryBases;
-    // The condition that will be signaled when there is an entry available in mMemoryBases.
-    Condition mMemoryBaseAvailableCond;
-    // A mapping from ANativeWindowBuffer sent to encoder to BufferItem received from camera.
-    // This is protected by mLock.
-    KeyedVector<ANativeWindowBuffer*, BufferItem> mReceivedBufferItemMap;
-    sp<BufferQueueListener> mBufferQueueListener;
-
-    void releaseQueuedFrames();
-    void releaseOneRecordingFrame(const sp<IMemory>& frame);
-    void createVideoBufferMemoryHeap(size_t size, uint32_t bufferCount);
-
-    status_t init(const sp<hardware::ICamera>& camera, const sp<ICameraRecordingProxy>& proxy,
-                  int32_t cameraId, const String16& clientName, uid_t clientUid, pid_t clientPid,
-                  Size videoSize, int32_t frameRate, bool storeMetaDataInVideoBuffers);
-
-    status_t initWithCameraAccess(
-                  const sp<hardware::ICamera>& camera, const sp<ICameraRecordingProxy>& proxy,
-                  int32_t cameraId, const String16& clientName, uid_t clientUid, pid_t clientPid,
-                  Size videoSize, int32_t frameRate, bool storeMetaDataInVideoBuffers);
-
-    // Initialize the buffer queue used in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
-    status_t initBufferQueue(uint32_t width, uint32_t height, uint32_t format,
-                  android_dataspace dataSpace, uint32_t bufferCount);
-
-    status_t isCameraAvailable(const sp<hardware::ICamera>& camera,
-                               const sp<ICameraRecordingProxy>& proxy,
-                               int32_t cameraId,
-                               const String16& clientName,
-                               uid_t clientUid,
-                               pid_t clientPid);
-
-    status_t isCameraColorFormatSupported(const CameraParameters& params);
-    status_t configureCamera(CameraParameters* params,
-                    int32_t width, int32_t height,
-                    int32_t frameRate);
-
-    status_t checkVideoSize(const CameraParameters& params,
-                    int32_t width, int32_t height);
-
-    status_t checkFrameRate(const CameraParameters& params,
-                    int32_t frameRate);
-
-    // Check if this frame should be skipped based on the frame's timestamp in microsecond.
-    // mLock must be locked before calling this function.
-    bool shouldSkipFrameLocked(int64_t timestampUs);
-
-    void stopCameraRecording();
-    status_t reset();
-
-    CameraSource(const CameraSource &);
-    CameraSource &operator=(const CameraSource &);
-};
-
-}  // namespace android
-
-#endif  // CAMERA_SOURCE_H_
diff --git a/include/media/stagefright/CameraSourceTimeLapse.h b/include/media/stagefright/CameraSourceTimeLapse.h
deleted file mode 100644
index 871c1d9..0000000
--- a/include/media/stagefright/CameraSourceTimeLapse.h
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef CAMERA_SOURCE_TIME_LAPSE_H_
-
-#define CAMERA_SOURCE_TIME_LAPSE_H_
-
-#include <pthread.h>
-
-#include <utils/RefBase.h>
-#include <utils/threads.h>
-#include <utils/String16.h>
-
-namespace android {
-
-namespace hardware {
-class ICamera;
-}
-
-class IMemory;
-class Camera;
-
-class CameraSourceTimeLapse : public CameraSource {
-public:
-    static CameraSourceTimeLapse *CreateFromCamera(
-        const sp<hardware::ICamera> &camera,
-        const sp<ICameraRecordingProxy> &proxy,
-        int32_t cameraId,
-        const String16& clientName,
-        uid_t clientUid,
-        pid_t clientPid,
-        Size videoSize,
-        int32_t videoFrameRate,
-        const sp<IGraphicBufferProducer>& surface,
-        int64_t timeBetweenTimeLapseFrameCaptureUs,
-        bool storeMetaDataInVideoBuffers = true);
-
-    virtual ~CameraSourceTimeLapse();
-
-    // If the frame capture interval is large, read will block for a long time.
-    // Due to the way the mediaRecorder framework works, a stop() call from
-    // mediaRecorder waits until the read returns, causing a long wait for
-    // stop() to return. To avoid this, we can make read() return a copy of the
-    // last read frame with the same time stamp frequently. This keeps the
-    // read() call from blocking too long. Calling this function quickly
-    // captures another frame, keeps its copy, and enables this mode of read()
-    // returning quickly.
-    void startQuickReadReturns();
-
-private:
-    // size of the encoded video.
-    int32_t mVideoWidth;
-    int32_t mVideoHeight;
-
-    // Time between two frames in final video (1/frameRate)
-    int64_t mTimeBetweenTimeLapseVideoFramesUs;
-
-    // Real timestamp of the last encoded time lapse frame
-    int64_t mLastTimeLapseFrameRealTimestampUs;
-
-    // Variable set in dataCallbackTimestamp() to help skipCurrentFrame()
-    // to know if current frame needs to be skipped.
-    bool mSkipCurrentFrame;
-
-    // Lock for accessing mCameraIdle
-    Mutex mCameraIdleLock;
-
-    // Condition variable to wait on if camera is is not yet idle. Once the
-    // camera gets idle, this variable will be signalled.
-    Condition mCameraIdleCondition;
-
-    // True if camera is in preview mode and ready for takePicture().
-    // False after a call to takePicture() but before the final compressed
-    // data callback has been called and preview has been restarted.
-    volatile bool mCameraIdle;
-
-    // True if stop() is waiting for camera to get idle, i.e. for the last
-    // takePicture() to complete. This is needed so that dataCallbackTimestamp()
-    // can return immediately.
-    volatile bool mStopWaitingForIdleCamera;
-
-    // Lock for accessing quick stop variables.
-    Mutex mQuickStopLock;
-
-    // mQuickStop is set to true if we use quick read() returns, otherwise it is set
-    // to false. Once in this mode read() return a copy of the last read frame
-    // with the same time stamp. See startQuickReadReturns().
-    volatile bool mQuickStop;
-
-    // Forces the next frame passed to dataCallbackTimestamp() to be read
-    // as a time lapse frame. Used by startQuickReadReturns() so that the next
-    // frame wakes up any blocking read.
-    volatile bool mForceRead;
-
-    // Stores a copy of the MediaBuffer read in the last read() call after
-    // mQuickStop was true.
-    MediaBuffer* mLastReadBufferCopy;
-
-    // Status code for last read.
-    status_t mLastReadStatus;
-
-    CameraSourceTimeLapse(
-        const sp<hardware::ICamera> &camera,
-        const sp<ICameraRecordingProxy> &proxy,
-        int32_t cameraId,
-        const String16& clientName,
-        uid_t clientUid,
-        pid_t clientPid,
-        Size videoSize,
-        int32_t videoFrameRate,
-        const sp<IGraphicBufferProducer>& surface,
-        int64_t timeBetweenTimeLapseFrameCaptureUs,
-        bool storeMetaDataInVideoBuffers = true);
-
-    // Wrapper over CameraSource::signalBufferReturned() to implement quick stop.
-    // It only handles the case when mLastReadBufferCopy is signalled. Otherwise
-    // it calls the base class' function.
-    virtual void signalBufferReturned(MediaBuffer* buffer);
-
-    // Wrapper over CameraSource::read() to implement quick stop.
-    virtual status_t read(MediaBuffer **buffer, const ReadOptions *options = NULL);
-
-    // mSkipCurrentFrame is set to true in dataCallbackTimestamp() if the current
-    // frame needs to be skipped and this function just returns the value of mSkipCurrentFrame.
-    virtual bool skipCurrentFrame(int64_t timestampUs);
-
-    // In the video camera case calls skipFrameAndModifyTimeStamp() to modify
-    // timestamp and set mSkipCurrentFrame.
-    // Then it calls the base CameraSource::dataCallbackTimestamp()
-    // This will be called in VIDEO_BUFFER_MODE_DATA_CALLBACK_YUV and
-    // VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA mode.
-    virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType,
-            const sp<IMemory> &data);
-
-    // In the video camera case calls skipFrameAndModifyTimeStamp() to modify
-    // timestamp and set mSkipCurrentFrame.
-    // Then it calls the base CameraSource::recordingFrameHandleCallbackTimestamp()
-    // This will be called in VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA mode when
-    // the metadata is VideoNativeHandleMetadata.
-    virtual void recordingFrameHandleCallbackTimestamp(int64_t timestampUs,
-            native_handle_t* handle);
-
-    // Process a buffer item received in CameraSource::BufferQueueListener.
-    // This will be called in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
-    virtual void processBufferQueueFrame(BufferItem& buffer);
-
-    // Convenience function to fill mLastReadBufferCopy from the just read
-    // buffer.
-    void fillLastReadBufferCopy(MediaBuffer& sourceBuffer);
-
-    // If the passed in size (width x height) is a supported video/preview size,
-    // the function sets the camera's video/preview size to it and returns true.
-    // Otherwise returns false.
-    bool trySettingVideoSize(int32_t width, int32_t height);
-
-    // When video camera is used for time lapse capture, returns true
-    // until enough time has passed for the next time lapse frame. When
-    // the frame needs to be encoded, it returns false and also modifies
-    // the time stamp to be one frame time ahead of the last encoded
-    // frame's time stamp.
-    bool skipFrameAndModifyTimeStamp(int64_t *timestampUs);
-
-    // Wrapper to enter threadTimeLapseEntry()
-    static void *ThreadTimeLapseWrapper(void *me);
-
-    // Creates a copy of source_data into a new memory of final type MemoryBase.
-    sp<IMemory> createIMemoryCopy(const sp<IMemory> &source_data);
-
-    CameraSourceTimeLapse(const CameraSourceTimeLapse &);
-    CameraSourceTimeLapse &operator=(const CameraSourceTimeLapse &);
-};
-
-}  // namespace android
-
-#endif  // CAMERA_SOURCE_TIME_LAPSE_H_
diff --git a/include/media/stagefright/CodecBase.h b/include/media/stagefright/CodecBase.h
deleted file mode 100644
index be2835d..0000000
--- a/include/media/stagefright/CodecBase.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef CODEC_BASE_H_
-
-#define CODEC_BASE_H_
-
-#include <stdint.h>
-
-#define STRINGIFY_ENUMS
-
-#include <media/IOMX.h>
-#include <media/MediaCodecInfo.h>
-#include <media/stagefright/foundation/AHandler.h>
-#include <media/stagefright/foundation/ColorUtils.h>
-#include <media/hardware/HardwareAPI.h>
-
-#include <utils/NativeHandle.h>
-
-#include <system/graphics.h>
-
-namespace android {
-
-struct ABuffer;
-struct PersistentSurface;
-
-struct CodecBase : public AHandler, /* static */ ColorUtils {
-    enum {
-        kWhatFillThisBuffer      = 'fill',
-        kWhatDrainThisBuffer     = 'drai',
-        kWhatEOS                 = 'eos ',
-        kWhatShutdownCompleted   = 'scom',
-        kWhatFlushCompleted      = 'fcom',
-        kWhatOutputFormatChanged = 'outC',
-        kWhatError               = 'erro',
-        kWhatComponentAllocated  = 'cAll',
-        kWhatComponentConfigured = 'cCon',
-        kWhatInputSurfaceCreated = 'isfc',
-        kWhatInputSurfaceAccepted = 'isfa',
-        kWhatSignaledInputEOS    = 'seos',
-        kWhatBuffersAllocated    = 'allc',
-        kWhatOutputFramesRendered = 'outR',
-    };
-
-    enum {
-        kMaxCodecBufferSize = 8192 * 4096 * 4, // 8K RGBA
-    };
-
-    virtual void setNotificationMessage(const sp<AMessage> &msg) = 0;
-
-    virtual void initiateAllocateComponent(const sp<AMessage> &msg) = 0;
-    virtual void initiateConfigureComponent(const sp<AMessage> &msg) = 0;
-    virtual void initiateCreateInputSurface() = 0;
-    virtual void initiateSetInputSurface(
-            const sp<PersistentSurface> &surface) = 0;
-    virtual void initiateStart() = 0;
-    virtual void initiateShutdown(bool keepComponentAllocated = false) = 0;
-
-    // require an explicit message handler
-    virtual void onMessageReceived(const sp<AMessage> &msg) = 0;
-
-    virtual status_t queryCapabilities(
-            const AString &name, const AString &mime, bool isEncoder,
-            sp<MediaCodecInfo::Capabilities> *caps /* nonnull */) { return INVALID_OPERATION; }
-
-    virtual status_t setSurface(const sp<Surface> &surface) { return INVALID_OPERATION; }
-
-    virtual void signalFlush() = 0;
-    virtual void signalResume() = 0;
-
-    virtual void signalRequestIDRFrame() = 0;
-    virtual void signalSetParameters(const sp<AMessage> &msg) = 0;
-    virtual void signalEndOfInputStream() = 0;
-
-    struct PortDescription : public RefBase {
-        virtual size_t countBuffers() = 0;
-        virtual IOMX::buffer_id bufferIDAt(size_t index) const = 0;
-        virtual sp<ABuffer> bufferAt(size_t index) const = 0;
-        virtual sp<NativeHandle> handleAt(size_t index) const { return NULL; };
-        virtual sp<RefBase> memRefAt(size_t index) const { return NULL; }
-
-    protected:
-        PortDescription();
-        virtual ~PortDescription();
-
-    private:
-        DISALLOW_EVIL_CONSTRUCTORS(PortDescription);
-    };
-
-    /*
-     * Codec-related defines
-     */
-
-protected:
-    CodecBase();
-    virtual ~CodecBase();
-
-private:
-    DISALLOW_EVIL_CONSTRUCTORS(CodecBase);
-};
-
-}  // namespace android
-
-#endif  // CODEC_BASE_H_
-
diff --git a/include/media/stagefright/DataSource.h b/include/media/stagefright/DataSource.h
deleted file mode 100644
index 0254545..0000000
--- a/include/media/stagefright/DataSource.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef DATA_SOURCE_H_
-
-#define DATA_SOURCE_H_
-
-#include <sys/types.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/MediaErrors.h>
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/List.h>
-#include <utils/RefBase.h>
-#include <utils/threads.h>
-#include <drm/DrmManagerClient.h>
-
-namespace android {
-
-struct AMessage;
-struct AString;
-class  IDataSource;
-struct IMediaHTTPService;
-class String8;
-struct HTTPBase;
-
-class DataSource : public RefBase {
-public:
-    enum Flags {
-        kWantsPrefetching      = 1,
-        kStreamedFromLocalHost = 2,
-        kIsCachingDataSource   = 4,
-        kIsHTTPBasedSource     = 8,
-    };
-
-    static sp<DataSource> CreateFromURI(
-            const sp<IMediaHTTPService> &httpService,
-            const char *uri,
-            const KeyedVector<String8, String8> *headers = NULL,
-            String8 *contentType = NULL,
-            HTTPBase *httpSource = NULL);
-
-    static sp<DataSource> CreateMediaHTTP(const sp<IMediaHTTPService> &httpService);
-    static sp<DataSource> CreateFromIDataSource(const sp<IDataSource> &source);
-
-    DataSource() {}
-
-    virtual status_t initCheck() const = 0;
-
-    // Returns the number of bytes read, or -1 on failure. It's not an error if
-    // this returns zero; it just means the given offset is equal to, or
-    // beyond, the end of the source.
-    virtual ssize_t readAt(off64_t offset, void *data, size_t size) = 0;
-
-    // Convenience methods:
-    bool getUInt16(off64_t offset, uint16_t *x);
-    bool getUInt24(off64_t offset, uint32_t *x); // 3 byte int, returned as a 32-bit int
-    bool getUInt32(off64_t offset, uint32_t *x);
-    bool getUInt64(off64_t offset, uint64_t *x);
-
-    // Reads in "count" entries of type T into vector *x.
-    // Returns true if "count" entries can be read.
-    // If fewer than "count" entries can be read, return false. In this case,
-    // the output vector *x will still have those entries that were read. Call
-    // x->size() to obtain the number of entries read.
-    // The optional parameter chunkSize specifies how many entries should be
-    // read from the data source at one time into a temporary buffer. Increasing
-    // chunkSize can improve the performance at the cost of extra memory usage.
-    // The default value for chunkSize is set to read at least 4k bytes at a
-    // time, depending on sizeof(T).
-    template <typename T>
-    bool getVector(off64_t offset, Vector<T>* x, size_t count,
-                   size_t chunkSize = (4095 / sizeof(T)) + 1);
-
-    // May return ERROR_UNSUPPORTED.
-    virtual status_t getSize(off64_t *size);
-
-    virtual uint32_t flags() {
-        return 0;
-    }
-
-    virtual String8 toString() {
-        return String8("<unspecified>");
-    }
-
-    virtual status_t reconnectAtOffset(off64_t offset) {
-        return ERROR_UNSUPPORTED;
-    }
-
-    ////////////////////////////////////////////////////////////////////////////
-
-    bool sniff(String8 *mimeType, float *confidence, sp<AMessage> *meta);
-
-    // The sniffer can optionally fill in "meta" with an AMessage containing
-    // a dictionary of values that helps the corresponding extractor initialize
-    // its state without duplicating effort already exerted by the sniffer.
-    typedef bool (*SnifferFunc)(
-            const sp<DataSource> &source, String8 *mimeType,
-            float *confidence, sp<AMessage> *meta);
-
-    static void RegisterDefaultSniffers();
-
-    // for DRM
-    virtual sp<DecryptHandle> DrmInitialization(const char *mime = NULL) {
-        return NULL;
-    }
-    virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client) {};
-
-    virtual String8 getUri() {
-        return String8();
-    }
-
-    virtual String8 getMIMEType() const;
-
-    virtual void close() {};
-
-protected:
-    virtual ~DataSource() {}
-
-private:
-    static Mutex gSnifferMutex;
-    static List<SnifferFunc> gSniffers;
-    static bool gSniffersRegistered;
-
-    static void RegisterSniffer_l(SnifferFunc func);
-
-    DataSource(const DataSource &);
-    DataSource &operator=(const DataSource &);
-};
-
-template <typename T>
-bool DataSource::getVector(off64_t offset, Vector<T>* x, size_t count,
-                           size_t chunkSize)
-{
-    x->clear();
-    if (chunkSize == 0) {
-        return false;
-    }
-    if (count == 0) {
-        return true;
-    }
-
-    T tmp[chunkSize];
-    ssize_t numBytesRead;
-    size_t numBytesPerChunk = chunkSize * sizeof(T);
-    size_t i;
-
-    for (i = 0; i + chunkSize < count; i += chunkSize) {
-        // This loops is executed when more than chunkSize records need to be
-        // read.
-        numBytesRead = this->readAt(offset, (void*)&tmp, numBytesPerChunk);
-        if (numBytesRead == -1) { // If readAt() returns -1, there is an error.
-            return false;
-        }
-        if (numBytesRead < numBytesPerChunk) {
-            // This case is triggered when the stream ends before the whole
-            // chunk is read.
-            x->appendArray(tmp, (size_t)numBytesRead / sizeof(T));
-            return false;
-        }
-        x->appendArray(tmp, chunkSize);
-        offset += numBytesPerChunk;
-    }
-
-    // There are (count - i) more records to read.
-    // Right now, (count - i) <= chunkSize.
-    // We do the same thing as above, but with chunkSize replaced by count - i.
-    numBytesRead = this->readAt(offset, (void*)&tmp, (count - i) * sizeof(T));
-    if (numBytesRead == -1) {
-        return false;
-    }
-    x->appendArray(tmp, (size_t)numBytesRead / sizeof(T));
-    return x->size() == count;
-}
-
-}  // namespace android
-
-#endif  // DATA_SOURCE_H_
diff --git a/include/media/stagefright/FileSource.h b/include/media/stagefright/FileSource.h
deleted file mode 100644
index b6349e0..0000000
--- a/include/media/stagefright/FileSource.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef FILE_SOURCE_H_
-
-#define FILE_SOURCE_H_
-
-#include <stdio.h>
-
-#include <media/stagefright/DataSource.h>
-#include <media/stagefright/MediaErrors.h>
-#include <utils/threads.h>
-#include <drm/DrmManagerClient.h>
-
-namespace android {
-
-class FileSource : public DataSource {
-public:
-    FileSource(const char *filename);
-    // FileSource takes ownership and will close the fd
-    FileSource(int fd, int64_t offset, int64_t length);
-
-    virtual status_t initCheck() const;
-
-    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
-
-    virtual status_t getSize(off64_t *size);
-
-    virtual sp<DecryptHandle> DrmInitialization(const char *mime);
-
-    virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client);
-
-    virtual String8 toString() {
-        return mName;
-    }
-
-protected:
-    virtual ~FileSource();
-
-private:
-    int mFd;
-    int64_t mOffset;
-    int64_t mLength;
-    Mutex mLock;
-    String8 mName;
-
-    /*for DRM*/
-    sp<DecryptHandle> mDecryptHandle;
-    DrmManagerClient *mDrmManagerClient;
-    int64_t mDrmBufOffset;
-    ssize_t mDrmBufSize;
-    unsigned char *mDrmBuf;
-
-    ssize_t readAtDRM(off64_t offset, void *data, size_t size);
-
-    FileSource(const FileSource &);
-    FileSource &operator=(const FileSource &);
-};
-
-}  // namespace android
-
-#endif  // FILE_SOURCE_H_
-
diff --git a/include/media/stagefright/FrameRenderTracker.h b/include/media/stagefright/FrameRenderTracker.h
deleted file mode 100644
index 9333e8f..0000000
--- a/include/media/stagefright/FrameRenderTracker.h
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef FRAME_RENDER_TRACKER_H_
-
-#define FRAME_RENDER_TRACKER_H_
-
-#include <utils/RefBase.h>
-#include <utils/Timers.h>
-#include <system/window.h>
-
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/AString.h>
-
-#include <list>
-
-namespace android {
-
-class Fence;
-class GraphicBuffer;
-
-struct FrameRenderTracker : public RefBase {
-    // Tracks the render information about a frame. Frames go through several states while
-    // the render information is tracked:
-    //
-    // 1. queued frame: mMediaTime and mGraphicBuffer are set for the frame. mFence is the
-    // queue fence (read fence). mIndex is negative, and mRenderTimeNs is invalid.
-    // Key characteristics: mFence is not NULL and mIndex is negative.
-    //
-    // 2. dequeued frame: mFence is updated with the dequeue fence (write fence). mIndex is set.
-    // Key characteristics: mFence is not NULL and mIndex is non-negative. mRenderTime is still
-    // invalid.
-    //
-    // 3. rendered frame or frame: mFence is cleared, mRenderTimeNs is set.
-    // Key characteristics: mFence is NULL.
-    //
-    struct Info {
-        // set by client during onFrameQueued or onFrameRendered
-        int64_t getMediaTimeUs() const  { return mMediaTimeUs; }
-
-        // -1 if frame is not yet rendered
-        nsecs_t getRenderTimeNs() const { return mRenderTimeNs; }
-
-        // set by client during updateRenderInfoForDequeuedBuffer; -1 otherwise
-        ssize_t getIndex() const        { return mIndex; }
-
-        // creates information for a queued frame
-        Info(int64_t mediaTimeUs, const sp<GraphicBuffer> &graphicBuffer, const sp<Fence> &fence)
-            : mMediaTimeUs(mediaTimeUs),
-              mRenderTimeNs(-1),
-              mIndex(-1),
-              mGraphicBuffer(graphicBuffer),
-              mFence(fence) {
-        }
-
-        // creates information for a frame rendered on a tunneled surface
-        Info(int64_t mediaTimeUs, nsecs_t renderTimeNs)
-            : mMediaTimeUs(mediaTimeUs),
-              mRenderTimeNs(renderTimeNs),
-              mIndex(-1),
-              mGraphicBuffer(NULL),
-              mFence(NULL) {
-        }
-
-    private:
-        int64_t mMediaTimeUs;
-        nsecs_t mRenderTimeNs;
-        ssize_t mIndex;         // to be used by client
-        sp<GraphicBuffer> mGraphicBuffer;
-        sp<Fence> mFence;
-
-        friend class FrameRenderTracker;
-    };
-
-    FrameRenderTracker();
-
-    void setComponentName(const AString &componentName);
-
-    // clears all tracked frames, and resets last render time
-    void clear(nsecs_t lastRenderTimeNs);
-
-    // called when |graphicBuffer| corresponding to |mediaTimeUs| is
-    // queued to the output surface using |fence|.
-    void onFrameQueued(
-            int64_t mediaTimeUs, const sp<GraphicBuffer> &graphicBuffer, const sp<Fence> &fence);
-
-    // Called when we have dequeued a buffer |buf| from the native window to track render info.
-    // |fenceFd| is the dequeue fence, and |index| is a positive buffer ID to be usable by the
-    // client to track this render info among the dequeued buffers.
-    // Returns pointer to the tracked info, or NULL if buffer is not tracked or if |index|
-    // is negative.
-    Info *updateInfoForDequeuedBuffer(ANativeWindowBuffer *buf, int fenceFd, int index);
-
-    // called when tunneled codec signals frame rendered event
-    // returns BAD_VALUE if systemNano is not monotonic. Otherwise, returns OK.
-    status_t onFrameRendered(int64_t mediaTimeUs, nsecs_t systemNano);
-
-    // Checks to see if any frames have rendered up until |until|. If |until| is NULL or not a
-    // tracked info, this method searches the entire render queue.
-    // Returns list of rendered frames up-until the frame pointed to by |until| or the first
-    // unrendered frame, as well as any dropped frames (those with invalid fence) up-until |until|.
-    // These frames are removed from the render queue.
-    // If |dropIncomplete| is true, unrendered frames up-until |until| will also be dropped from the
-    // queue, allowing all rendered framed up till then to be notified of.
-    // (This will effectively clear the render queue up-until (and including) |until|.)
-    std::list<Info> checkFencesAndGetRenderedFrames(const Info *until, bool dropIncomplete);
-
-    // Stop tracking a queued frame (e.g. if the frame has been discarded). If |info| is NULL or is
-    // not tracked, this method is a no-op. If |index| is specified, all indices larger that |index|
-    // are decremented. This is useful if the untracked frame is deleted from the frame vector.
-    void untrackFrame(const Info *info, ssize_t index = SSIZE_MAX);
-
-    void dumpRenderQueue() const;
-
-    virtual ~FrameRenderTracker();
-
-private:
-
-    // Render information for buffers. Regular surface buffers are queued in the order of
-    // rendering. Tunneled buffers are queued in the order of receipt.
-    std::list<Info> mRenderQueue;
-    nsecs_t mLastRenderTimeNs;
-    AString mComponentName;
-
-    DISALLOW_EVIL_CONSTRUCTORS(FrameRenderTracker);
-};
-
-}  // namespace android
-
-#endif  // FRAME_RENDER_TRACKER_H_
diff --git a/include/media/stagefright/MPEG4Writer.h b/include/media/stagefright/MPEG4Writer.h
deleted file mode 100644
index 8f0eaa7..0000000
--- a/include/media/stagefright/MPEG4Writer.h
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MPEG4_WRITER_H_
-
-#define MPEG4_WRITER_H_
-
-#include <stdio.h>
-
-#include <media/IMediaSource.h>
-#include <media/stagefright/MediaWriter.h>
-#include <utils/List.h>
-#include <utils/threads.h>
-
-namespace android {
-
-class AMessage;
-class MediaBuffer;
-class MetaData;
-
-class MPEG4Writer : public MediaWriter {
-public:
-    MPEG4Writer(int fd);
-
-    // Limitations
-    // 1. No more than 2 tracks can be added
-    // 2. Only video or audio source can be added
-    // 3. No more than one video and/or one audio source can be added.
-    virtual status_t addSource(const sp<IMediaSource> &source);
-
-    // Returns INVALID_OPERATION if there is no source or track.
-    virtual status_t start(MetaData *param = NULL);
-    virtual status_t stop() { return reset(); }
-    virtual status_t pause();
-    virtual bool reachedEOS();
-    virtual status_t dump(int fd, const Vector<String16>& args);
-
-    void beginBox(const char *fourcc);
-    void beginBox(uint32_t id);
-    void writeInt8(int8_t x);
-    void writeInt16(int16_t x);
-    void writeInt32(int32_t x);
-    void writeInt64(int64_t x);
-    void writeCString(const char *s);
-    void writeFourcc(const char *fourcc);
-    void write(const void *data, size_t size);
-    inline size_t write(const void *ptr, size_t size, size_t nmemb);
-    void endBox();
-    uint32_t interleaveDuration() const { return mInterleaveDurationUs; }
-    status_t setInterleaveDuration(uint32_t duration);
-    int32_t getTimeScale() const { return mTimeScale; }
-
-    status_t setGeoData(int latitudex10000, int longitudex10000);
-    status_t setCaptureRate(float captureFps);
-    status_t setTemporalLayerCount(uint32_t layerCount);
-    virtual void setStartTimeOffsetMs(int ms) { mStartTimeOffsetMs = ms; }
-    virtual int32_t getStartTimeOffsetMs() const { return mStartTimeOffsetMs; }
-
-protected:
-    virtual ~MPEG4Writer();
-
-private:
-    class Track;
-
-    int  mFd;
-    status_t mInitCheck;
-    bool mIsRealTimeRecording;
-    bool mUse4ByteNalLength;
-    bool mUse32BitOffset;
-    bool mIsFileSizeLimitExplicitlyRequested;
-    bool mPaused;
-    bool mStarted;  // Writer thread + track threads started successfully
-    bool mWriterThreadStarted;  // Only writer thread started successfully
-    off64_t mOffset;
-    off_t mMdatOffset;
-    uint8_t *mMoovBoxBuffer;
-    off64_t mMoovBoxBufferOffset;
-    bool  mWriteMoovBoxToMemory;
-    off64_t mFreeBoxOffset;
-    bool mStreamableFile;
-    off64_t mEstimatedMoovBoxSize;
-    off64_t mMoovExtraSize;
-    uint32_t mInterleaveDurationUs;
-    int32_t mTimeScale;
-    int64_t mStartTimestampUs;
-    int mLatitudex10000;
-    int mLongitudex10000;
-    bool mAreGeoTagsAvailable;
-    int32_t mStartTimeOffsetMs;
-
-    Mutex mLock;
-
-    List<Track *> mTracks;
-
-    List<off64_t> mBoxes;
-
-    sp<AMessage> mMetaKeys;
-
-    void setStartTimestampUs(int64_t timeUs);
-    int64_t getStartTimestampUs();  // Not const
-    status_t startTracks(MetaData *params);
-    size_t numTracks();
-    int64_t estimateMoovBoxSize(int32_t bitRate);
-
-    struct Chunk {
-        Track               *mTrack;        // Owner
-        int64_t             mTimeStampUs;   // Timestamp of the 1st sample
-        List<MediaBuffer *> mSamples;       // Sample data
-
-        // Convenient constructor
-        Chunk(): mTrack(NULL), mTimeStampUs(0) {}
-
-        Chunk(Track *track, int64_t timeUs, List<MediaBuffer *> samples)
-            : mTrack(track), mTimeStampUs(timeUs), mSamples(samples) {
-        }
-
-    };
-    struct ChunkInfo {
-        Track               *mTrack;        // Owner
-        List<Chunk>         mChunks;        // Remaining chunks to be written
-
-        // Previous chunk timestamp that has been written
-        int64_t mPrevChunkTimestampUs;
-
-        // Max time interval between neighboring chunks
-        int64_t mMaxInterChunkDurUs;
-
-    };
-
-    bool            mIsFirstChunk;
-    volatile bool   mDone;                  // Writer thread is done?
-    pthread_t       mThread;                // Thread id for the writer
-    List<ChunkInfo> mChunkInfos;            // Chunk infos
-    Condition       mChunkReadyCondition;   // Signal that chunks are available
-
-    // Writer thread handling
-    status_t startWriterThread();
-    void stopWriterThread();
-    static void *ThreadWrapper(void *me);
-    void threadFunc();
-
-    // Buffer a single chunk to be written out later.
-    void bufferChunk(const Chunk& chunk);
-
-    // Write all buffered chunks from all tracks
-    void writeAllChunks();
-
-    // Retrieve the proper chunk to write if there is one
-    // Return true if a chunk is found; otherwise, return false.
-    bool findChunkToWrite(Chunk *chunk);
-
-    // Actually write the given chunk to the file.
-    void writeChunkToFile(Chunk* chunk);
-
-    // Adjust other track media clock (presumably wall clock)
-    // based on audio track media clock with the drift time.
-    int64_t mDriftTimeUs;
-    void setDriftTimeUs(int64_t driftTimeUs);
-    int64_t getDriftTimeUs();
-
-    // Return whether the nal length is 4 bytes or 2 bytes
-    // Only makes sense for H.264/AVC
-    bool useNalLengthFour();
-
-    // Return whether the writer is used for real time recording.
-    // In real time recording mode, new samples will be allowed to buffered into
-    // chunks in higher priority thread, even though the file writer has not
-    // drained the chunks yet.
-    // By default, real time recording is on.
-    bool isRealTimeRecording() const;
-
-    void lock();
-    void unlock();
-
-    // Acquire lock before calling these methods
-    off64_t addSample_l(MediaBuffer *buffer);
-    off64_t addLengthPrefixedSample_l(MediaBuffer *buffer);
-    off64_t addMultipleLengthPrefixedSamples_l(MediaBuffer *buffer);
-
-    bool exceedsFileSizeLimit();
-    bool use32BitFileOffset() const;
-    bool exceedsFileDurationLimit();
-    bool isFileStreamable() const;
-    void trackProgressStatus(size_t trackId, int64_t timeUs, status_t err = OK);
-    void writeCompositionMatrix(int32_t degrees);
-    void writeMvhdBox(int64_t durationUs);
-    void writeMoovBox(int64_t durationUs);
-    void writeFtypBox(MetaData *param);
-    void writeUdtaBox();
-    void writeGeoDataBox();
-    void writeLatitude(int degreex10000);
-    void writeLongitude(int degreex10000);
-
-    void addDeviceMeta();
-    void writeHdlr();
-    void writeKeys();
-    void writeIlst();
-    void writeMetaBox();
-    void sendSessionSummary();
-    void release();
-    status_t reset();
-
-    static uint32_t getMpeg4Time();
-
-    MPEG4Writer(const MPEG4Writer &);
-    MPEG4Writer &operator=(const MPEG4Writer &);
-};
-
-}  // namespace android
-
-#endif  // MPEG4_WRITER_H_
diff --git a/include/media/stagefright/MediaBuffer.h b/include/media/stagefright/MediaBuffer.h
deleted file mode 100644
index a61ddaa..0000000
--- a/include/media/stagefright/MediaBuffer.h
+++ /dev/null
@@ -1,236 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_BUFFER_H_
-
-#define MEDIA_BUFFER_H_
-
-#include <atomic>
-#include <list>
-#include <media/stagefright/foundation/MediaBufferBase.h>
-
-#include <pthread.h>
-
-#include <binder/MemoryDealer.h>
-#include <utils/Errors.h>
-#include <utils/RefBase.h>
-
-namespace android {
-
-struct ABuffer;
-class GraphicBuffer;
-class MediaBuffer;
-class MediaBufferObserver;
-class MetaData;
-
-class MediaBufferObserver {
-public:
-    MediaBufferObserver() {}
-    virtual ~MediaBufferObserver() {}
-
-    virtual void signalBufferReturned(MediaBuffer *buffer) = 0;
-
-private:
-    MediaBufferObserver(const MediaBufferObserver &);
-    MediaBufferObserver &operator=(const MediaBufferObserver &);
-};
-
-class MediaBuffer : public MediaBufferBase {
-public:
-    // allocations larger than or equal to this will use shared memory.
-    static const size_t kSharedMemThreshold = 64 * 1024;
-
-    // The underlying data remains the responsibility of the caller!
-    MediaBuffer(void *data, size_t size);
-
-    MediaBuffer(size_t size);
-
-    MediaBuffer(const sp<GraphicBuffer>& graphicBuffer);
-
-    MediaBuffer(const sp<ABuffer> &buffer);
-
-    MediaBuffer(const sp<IMemory> &mem) :
-        MediaBuffer((uint8_t *)mem->pointer() + sizeof(SharedControl), mem->size()) {
-        // delegate and override mMemory
-        mMemory = mem;
-    }
-
-    // If MediaBufferGroup is set, decrement the local reference count;
-    // if the local reference count drops to 0, return the buffer to the
-    // associated MediaBufferGroup.
-    //
-    // If no MediaBufferGroup is set, the local reference count must be zero
-    // when called, whereupon the MediaBuffer is deleted.
-    virtual void release();
-
-    // Increments the local reference count.
-    // Use only when MediaBufferGroup is set.
-    virtual void add_ref();
-
-    void *data() const;
-    size_t size() const;
-
-    size_t range_offset() const;
-    size_t range_length() const;
-
-    void set_range(size_t offset, size_t length);
-
-    sp<GraphicBuffer> graphicBuffer() const;
-
-    sp<MetaData> meta_data();
-
-    // Clears meta data and resets the range to the full extent.
-    void reset();
-
-    void setObserver(MediaBufferObserver *group);
-
-    // Returns a clone of this MediaBuffer increasing its reference count.
-    // The clone references the same data but has its own range and
-    // MetaData.
-    MediaBuffer *clone();
-
-    // sum of localRefcount() and remoteRefcount()
-    int refcount() const {
-        return localRefcount() + remoteRefcount();
-    }
-
-    int localRefcount() const {
-        return mRefCount;
-    }
-
-    int remoteRefcount() const {
-        if (mMemory.get() == nullptr || mMemory->pointer() == nullptr) return 0;
-        int32_t remoteRefcount =
-                reinterpret_cast<SharedControl *>(mMemory->pointer())->getRemoteRefcount();
-        // Sanity check so that remoteRefCount() is non-negative.
-        return remoteRefcount >= 0 ? remoteRefcount : 0; // do not allow corrupted data.
-    }
-
-    // returns old value
-    int addRemoteRefcount(int32_t value) {
-        if (mMemory.get() == nullptr || mMemory->pointer() == nullptr) return 0;
-        return reinterpret_cast<SharedControl *>(mMemory->pointer())->addRemoteRefcount(value);
-    }
-
-    bool isDeadObject() const {
-        return isDeadObject(mMemory);
-    }
-
-    static bool isDeadObject(const sp<IMemory> &memory) {
-        if (memory.get() == nullptr || memory->pointer() == nullptr) return false;
-        return reinterpret_cast<SharedControl *>(memory->pointer())->isDeadObject();
-    }
-
-    // Sticky on enabling of shared memory MediaBuffers. By default we don't use
-    // shared memory for MediaBuffers, but we enable this for those processes
-    // that export MediaBuffers.
-    static void useSharedMemory() {
-        std::atomic_store_explicit(
-                &mUseSharedMemory, (int_least32_t)1, std::memory_order_seq_cst);
-    }
-
-protected:
-    // true if MediaBuffer is observed (part of a MediaBufferGroup).
-    inline bool isObserved() const {
-        return mObserver != nullptr;
-    }
-
-    virtual ~MediaBuffer();
-
-    sp<IMemory> mMemory;
-
-private:
-    friend class MediaBufferGroup;
-    friend class OMXDecoder;
-    friend class BnMediaSource;
-    friend class BpMediaSource;
-
-    // For use by OMXDecoder, reference count must be 1, drop reference
-    // count to 0 without signalling the observer.
-    void claim();
-
-    MediaBufferObserver *mObserver;
-    int mRefCount;
-
-    void *mData;
-    size_t mSize, mRangeOffset, mRangeLength;
-    sp<GraphicBuffer> mGraphicBuffer;
-    sp<ABuffer> mBuffer;
-
-    bool mOwnsData;
-
-    sp<MetaData> mMetaData;
-
-    MediaBuffer *mOriginal;
-
-    static std::atomic_int_least32_t mUseSharedMemory;
-
-    MediaBuffer(const MediaBuffer &);
-    MediaBuffer &operator=(const MediaBuffer &);
-
-    // SharedControl block at the start of IMemory.
-    struct SharedControl {
-        enum {
-            FLAG_DEAD_OBJECT = (1 << 0),
-        };
-
-        // returns old value
-        inline int32_t addRemoteRefcount(int32_t value) {
-            return std::atomic_fetch_add_explicit(
-                    &mRemoteRefcount, (int_least32_t)value, std::memory_order_seq_cst);
-        }
-
-        inline int32_t getRemoteRefcount() const {
-            return std::atomic_load_explicit(&mRemoteRefcount, std::memory_order_seq_cst);
-        }
-
-        inline void setRemoteRefcount(int32_t value) {
-            std::atomic_store_explicit(
-                    &mRemoteRefcount, (int_least32_t)value, std::memory_order_seq_cst);
-        }
-
-        inline bool isDeadObject() const {
-            return (std::atomic_load_explicit(
-                    &mFlags, std::memory_order_seq_cst) & FLAG_DEAD_OBJECT) != 0;
-        }
-
-        inline void setDeadObject() {
-            (void)std::atomic_fetch_or_explicit(
-                    &mFlags, (int_least32_t)FLAG_DEAD_OBJECT, std::memory_order_seq_cst);
-        }
-
-        inline void clear() {
-            std::atomic_store_explicit(
-                    &mFlags, (int_least32_t)0, std::memory_order_seq_cst);
-            std::atomic_store_explicit(
-                    &mRemoteRefcount, (int_least32_t)0, std::memory_order_seq_cst);
-        }
-
-    private:
-        // Caution: atomic_int_fast32_t is 64 bits on LP64.
-        std::atomic_int_least32_t mFlags;
-        std::atomic_int_least32_t mRemoteRefcount;
-        int32_t unused[6]; // additional buffer space
-    };
-
-    inline SharedControl *getSharedControl() const {
-         return reinterpret_cast<SharedControl *>(mMemory->pointer());
-     }
-};
-
-}  // namespace android
-
-#endif  // MEDIA_BUFFER_H_
diff --git a/include/media/stagefright/MediaCodec.h b/include/media/stagefright/MediaCodec.h
deleted file mode 100644
index fe579b7..0000000
--- a/include/media/stagefright/MediaCodec.h
+++ /dev/null
@@ -1,419 +0,0 @@
-/*
- * Copyright 2012, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_CODEC_H_
-
-#define MEDIA_CODEC_H_
-
-#include <gui/IGraphicBufferProducer.h>
-#include <media/hardware/CryptoAPI.h>
-#include <media/MediaCodecInfo.h>
-#include <media/MediaResource.h>
-#include <media/stagefright/foundation/AHandler.h>
-#include <media/stagefright/FrameRenderTracker.h>
-#include <utils/Vector.h>
-
-namespace android {
-
-struct ABuffer;
-struct AMessage;
-struct AReplyToken;
-struct AString;
-struct CodecBase;
-struct IBatteryStats;
-struct ICrypto;
-class IMemory;
-struct MemoryDealer;
-class IResourceManagerClient;
-class IResourceManagerService;
-struct PersistentSurface;
-struct SoftwareRenderer;
-struct Surface;
-
-struct MediaCodec : public AHandler {
-    enum ConfigureFlags {
-        CONFIGURE_FLAG_ENCODE   = 1,
-    };
-
-    enum BufferFlags {
-        BUFFER_FLAG_SYNCFRAME   = 1,
-        BUFFER_FLAG_CODECCONFIG = 2,
-        BUFFER_FLAG_EOS         = 4,
-    };
-
-    enum {
-        CB_INPUT_AVAILABLE = 1,
-        CB_OUTPUT_AVAILABLE = 2,
-        CB_ERROR = 3,
-        CB_OUTPUT_FORMAT_CHANGED = 4,
-        CB_RESOURCE_RECLAIMED = 5,
-    };
-
-    static const pid_t kNoPid = -1;
-
-    static sp<MediaCodec> CreateByType(
-            const sp<ALooper> &looper, const AString &mime, bool encoder, status_t *err = NULL,
-            pid_t pid = kNoPid);
-
-    static sp<MediaCodec> CreateByComponentName(
-            const sp<ALooper> &looper, const AString &name, status_t *err = NULL,
-            pid_t pid = kNoPid);
-
-    static sp<PersistentSurface> CreatePersistentInputSurface();
-
-    // utility method to query capabilities
-    static status_t QueryCapabilities(
-            const AString &name, const AString &mime, bool isEncoder,
-            sp<MediaCodecInfo::Capabilities> *caps /* nonnull */);
-
-    status_t configure(
-            const sp<AMessage> &format,
-            const sp<Surface> &nativeWindow,
-            const sp<ICrypto> &crypto,
-            uint32_t flags);
-
-    status_t setCallback(const sp<AMessage> &callback);
-
-    status_t setOnFrameRenderedNotification(const sp<AMessage> &notify);
-
-    status_t createInputSurface(sp<IGraphicBufferProducer>* bufferProducer);
-
-    status_t setInputSurface(const sp<PersistentSurface> &surface);
-
-    status_t start();
-
-    // Returns to a state in which the component remains allocated but
-    // unconfigured.
-    status_t stop();
-
-    // Resets the codec to the INITIALIZED state.  Can be called after an error
-    // has occured to make the codec usable.
-    status_t reset();
-
-    // Client MUST call release before releasing final reference to this
-    // object.
-    status_t release();
-
-    status_t flush();
-
-    status_t queueInputBuffer(
-            size_t index,
-            size_t offset,
-            size_t size,
-            int64_t presentationTimeUs,
-            uint32_t flags,
-            AString *errorDetailMsg = NULL);
-
-    status_t queueSecureInputBuffer(
-            size_t index,
-            size_t offset,
-            const CryptoPlugin::SubSample *subSamples,
-            size_t numSubSamples,
-            const uint8_t key[16],
-            const uint8_t iv[16],
-            CryptoPlugin::Mode mode,
-            const CryptoPlugin::Pattern &pattern,
-            int64_t presentationTimeUs,
-            uint32_t flags,
-            AString *errorDetailMsg = NULL);
-
-    status_t dequeueInputBuffer(size_t *index, int64_t timeoutUs = 0ll);
-
-    status_t dequeueOutputBuffer(
-            size_t *index,
-            size_t *offset,
-            size_t *size,
-            int64_t *presentationTimeUs,
-            uint32_t *flags,
-            int64_t timeoutUs = 0ll);
-
-    status_t renderOutputBufferAndRelease(size_t index, int64_t timestampNs);
-    status_t renderOutputBufferAndRelease(size_t index);
-    status_t releaseOutputBuffer(size_t index);
-
-    status_t signalEndOfInputStream();
-
-    status_t getOutputFormat(sp<AMessage> *format) const;
-    status_t getInputFormat(sp<AMessage> *format) const;
-
-    status_t getWidevineLegacyBuffers(Vector<sp<ABuffer> > *buffers) const;
-
-    status_t getInputBuffers(Vector<sp<ABuffer> > *buffers) const;
-    status_t getOutputBuffers(Vector<sp<ABuffer> > *buffers) const;
-
-    status_t getOutputBuffer(size_t index, sp<ABuffer> *buffer);
-    status_t getOutputFormat(size_t index, sp<AMessage> *format);
-    status_t getInputBuffer(size_t index, sp<ABuffer> *buffer);
-
-    status_t setSurface(const sp<Surface> &nativeWindow);
-
-    status_t requestIDRFrame();
-
-    // Notification will be posted once there "is something to do", i.e.
-    // an input/output buffer has become available, a format change is
-    // pending, an error is pending.
-    void requestActivityNotification(const sp<AMessage> &notify);
-
-    status_t getName(AString *componentName) const;
-
-    status_t setParameters(const sp<AMessage> &params);
-
-    // Create a MediaCodec notification message from a list of rendered or dropped render infos
-    // by adding rendered frame information to a base notification message. Returns the number
-    // of frames that were rendered.
-    static size_t CreateFramesRenderedMessage(
-            std::list<FrameRenderTracker::Info> done, sp<AMessage> &msg);
-
-protected:
-    virtual ~MediaCodec();
-    virtual void onMessageReceived(const sp<AMessage> &msg);
-
-private:
-    // used by ResourceManagerClient
-    status_t reclaim(bool force = false);
-    friend struct ResourceManagerClient;
-
-private:
-    enum State {
-        UNINITIALIZED,
-        INITIALIZING,
-        INITIALIZED,
-        CONFIGURING,
-        CONFIGURED,
-        STARTING,
-        STARTED,
-        FLUSHING,
-        FLUSHED,
-        STOPPING,
-        RELEASING,
-    };
-
-    enum {
-        kPortIndexInput         = 0,
-        kPortIndexOutput        = 1,
-    };
-
-    enum {
-        kWhatInit                           = 'init',
-        kWhatConfigure                      = 'conf',
-        kWhatSetSurface                     = 'sSur',
-        kWhatCreateInputSurface             = 'cisf',
-        kWhatSetInputSurface                = 'sisf',
-        kWhatStart                          = 'strt',
-        kWhatStop                           = 'stop',
-        kWhatRelease                        = 'rele',
-        kWhatDequeueInputBuffer             = 'deqI',
-        kWhatQueueInputBuffer               = 'queI',
-        kWhatDequeueOutputBuffer            = 'deqO',
-        kWhatReleaseOutputBuffer            = 'relO',
-        kWhatSignalEndOfInputStream         = 'eois',
-        kWhatGetBuffers                     = 'getB',
-        kWhatFlush                          = 'flus',
-        kWhatGetOutputFormat                = 'getO',
-        kWhatGetInputFormat                 = 'getI',
-        kWhatDequeueInputTimedOut           = 'dITO',
-        kWhatDequeueOutputTimedOut          = 'dOTO',
-        kWhatCodecNotify                    = 'codc',
-        kWhatRequestIDRFrame                = 'ridr',
-        kWhatRequestActivityNotification    = 'racN',
-        kWhatGetName                        = 'getN',
-        kWhatSetParameters                  = 'setP',
-        kWhatSetCallback                    = 'setC',
-        kWhatSetNotification                = 'setN',
-    };
-
-    enum {
-        kFlagUsesSoftwareRenderer       = 1,
-        kFlagOutputFormatChanged        = 2,
-        kFlagOutputBuffersChanged       = 4,
-        kFlagStickyError                = 8,
-        kFlagDequeueInputPending        = 16,
-        kFlagDequeueOutputPending       = 32,
-        kFlagIsSecure                   = 64,
-        kFlagSawMediaServerDie          = 128,
-        kFlagIsEncoder                  = 256,
-        kFlagGatherCodecSpecificData    = 512,
-        kFlagIsAsync                    = 1024,
-        kFlagIsComponentAllocated       = 2048,
-        kFlagPushBlankBuffersOnShutdown = 4096,
-    };
-
-    struct BufferInfo {
-        uint32_t mBufferID;
-        sp<ABuffer> mData;
-        sp<NativeHandle> mNativeHandle;
-        sp<RefBase> mMemRef;
-        sp<ABuffer> mEncryptedData;
-        sp<IMemory> mSharedEncryptedBuffer;
-        sp<AMessage> mNotify;
-        sp<AMessage> mFormat;
-        bool mOwnedByClient;
-    };
-
-    struct ResourceManagerServiceProxy : public IBinder::DeathRecipient {
-        ResourceManagerServiceProxy(pid_t pid);
-        ~ResourceManagerServiceProxy();
-
-        void init();
-
-        // implements DeathRecipient
-        virtual void binderDied(const wp<IBinder>& /*who*/);
-
-        void addResource(
-                int64_t clientId,
-                const sp<IResourceManagerClient> client,
-                const Vector<MediaResource> &resources);
-
-        void removeResource(int64_t clientId);
-
-        bool reclaimResource(const Vector<MediaResource> &resources);
-
-    private:
-        Mutex mLock;
-        sp<IResourceManagerService> mService;
-        pid_t mPid;
-    };
-
-    State mState;
-    bool mReleasedByResourceManager;
-    sp<ALooper> mLooper;
-    sp<ALooper> mCodecLooper;
-    sp<CodecBase> mCodec;
-    AString mComponentName;
-    sp<AReplyToken> mReplyID;
-    uint32_t mFlags;
-    status_t mStickyError;
-    sp<Surface> mSurface;
-    SoftwareRenderer *mSoftRenderer;
-
-    sp<AMessage> mOutputFormat;
-    sp<AMessage> mInputFormat;
-    sp<AMessage> mCallback;
-    sp<AMessage> mOnFrameRenderedNotification;
-    sp<MemoryDealer> mDealer;
-
-    sp<IResourceManagerClient> mResourceManagerClient;
-    sp<ResourceManagerServiceProxy> mResourceManagerService;
-
-    bool mBatteryStatNotified;
-    bool mIsVideo;
-    int32_t mVideoWidth;
-    int32_t mVideoHeight;
-    int32_t mRotationDegrees;
-
-    // initial create parameters
-    AString mInitName;
-    bool mInitNameIsType;
-    bool mInitIsEncoder;
-
-    // configure parameter
-    sp<AMessage> mConfigureMsg;
-
-    // Used only to synchronize asynchronous getBufferAndFormat
-    // across all the other (synchronous) buffer state change
-    // operations, such as de/queueIn/OutputBuffer, start and
-    // stop/flush/reset/release.
-    Mutex mBufferLock;
-
-    List<size_t> mAvailPortBuffers[2];
-    Vector<BufferInfo> mPortBuffers[2];
-
-    int32_t mDequeueInputTimeoutGeneration;
-    sp<AReplyToken> mDequeueInputReplyID;
-
-    int32_t mDequeueOutputTimeoutGeneration;
-    sp<AReplyToken> mDequeueOutputReplyID;
-
-    sp<ICrypto> mCrypto;
-
-    List<sp<ABuffer> > mCSD;
-
-    sp<AMessage> mActivityNotify;
-
-    bool mHaveInputSurface;
-    bool mHavePendingInputBuffers;
-
-    MediaCodec(const sp<ALooper> &looper, pid_t pid);
-
-    static sp<CodecBase> GetCodecBase(const AString &name, bool nameIsType = false);
-
-    static status_t PostAndAwaitResponse(
-            const sp<AMessage> &msg, sp<AMessage> *response);
-
-    void PostReplyWithError(const sp<AReplyToken> &replyID, int32_t err);
-
-    status_t init(const AString &name, bool nameIsType, bool encoder);
-
-    void setState(State newState);
-    void returnBuffersToCodec(bool isReclaim = false);
-    void returnBuffersToCodecOnPort(int32_t portIndex, bool isReclaim = false);
-    size_t updateBuffers(int32_t portIndex, const sp<AMessage> &msg);
-    status_t onQueueInputBuffer(const sp<AMessage> &msg);
-    status_t onReleaseOutputBuffer(const sp<AMessage> &msg);
-    ssize_t dequeuePortBuffer(int32_t portIndex);
-
-    status_t getBufferAndFormat(
-            size_t portIndex, size_t index,
-            sp<ABuffer> *buffer, sp<AMessage> *format);
-
-    bool handleDequeueInputBuffer(const sp<AReplyToken> &replyID, bool newRequest = false);
-    bool handleDequeueOutputBuffer(const sp<AReplyToken> &replyID, bool newRequest = false);
-    void cancelPendingDequeueOperations();
-
-    void extractCSD(const sp<AMessage> &format);
-    status_t queueCSDInputBuffer(size_t bufferIndex);
-
-    status_t handleSetSurface(const sp<Surface> &surface);
-    status_t connectToSurface(const sp<Surface> &surface);
-    status_t disconnectFromSurface();
-
-    void postActivityNotificationIfPossible();
-
-    void onInputBufferAvailable();
-    void onOutputBufferAvailable();
-    void onError(status_t err, int32_t actionCode, const char *detail = NULL);
-    void onOutputFormatChanged();
-
-    status_t onSetParameters(const sp<AMessage> &params);
-
-    status_t amendOutputFormatWithCodecSpecificData(const sp<ABuffer> &buffer);
-    void updateBatteryStat();
-    bool isExecuting() const;
-
-    uint64_t getGraphicBufferSize();
-    void addResource(MediaResource::Type type, MediaResource::SubType subtype, uint64_t value);
-
-    bool hasPendingBuffer(int portIndex);
-    bool hasPendingBuffer();
-
-    /* called to get the last codec error when the sticky flag is set.
-     * if no such codec error is found, returns UNKNOWN_ERROR.
-     */
-    inline status_t getStickyError() const {
-        return mStickyError != 0 ? mStickyError : UNKNOWN_ERROR;
-    }
-
-    inline void setStickyError(status_t err) {
-        mFlags |= kFlagStickyError;
-        mStickyError = err;
-    }
-
-    DISALLOW_EVIL_CONSTRUCTORS(MediaCodec);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_CODEC_H_
diff --git a/include/media/stagefright/MediaCodecList.h b/include/media/stagefright/MediaCodecList.h
deleted file mode 100644
index 44dbde0..0000000
--- a/include/media/stagefright/MediaCodecList.h
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * Copyright 2012, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_CODEC_LIST_H_
-
-#define MEDIA_CODEC_LIST_H_
-
-#include <media/stagefright/foundation/ABase.h>
-#include <media/stagefright/foundation/AString.h>
-#include <media/IMediaCodecList.h>
-#include <media/IOMX.h>
-#include <media/MediaCodecInfo.h>
-
-#include <sys/types.h>
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/Vector.h>
-#include <utils/StrongPointer.h>
-
-namespace android {
-
-extern const char *kMaxEncoderInputBuffers;
-
-struct AMessage;
-
-struct MediaCodecList : public BnMediaCodecList {
-    static sp<IMediaCodecList> getInstance();
-
-    virtual ssize_t findCodecByType(
-            const char *type, bool encoder, size_t startIndex = 0) const;
-
-    virtual ssize_t findCodecByName(const char *name) const;
-
-    virtual size_t countCodecs() const;
-
-    virtual sp<MediaCodecInfo> getCodecInfo(size_t index) const {
-        if (index >= mCodecInfos.size()) {
-            ALOGE("b/24445127");
-            return NULL;
-        }
-        return mCodecInfos.itemAt(index);
-    }
-
-    virtual const sp<AMessage> getGlobalSettings() const;
-
-    // to be used by MediaPlayerService alone
-    static sp<IMediaCodecList> getLocalInstance();
-
-    // only to be used by getLocalInstance
-    static void *profilerThreadWrapper(void * /*arg*/);
-
-    // only to be used by MediaPlayerService
-    void parseTopLevelXMLFile(const char *path, bool ignore_errors = false);
-
-    enum Flags {
-        kPreferSoftwareCodecs   = 1,
-        kHardwareCodecsOnly     = 2,
-    };
-
-    static void findMatchingCodecs(
-            const char *mime,
-            bool createEncoder,
-            uint32_t flags,
-            Vector<AString> *matching);
-
-    static uint32_t getQuirksFor(const char *mComponentName);
-
-    static bool isSoftwareCodec(const AString &componentName);
-
-
-private:
-    class BinderDeathObserver : public IBinder::DeathRecipient {
-        void binderDied(const wp<IBinder> &the_late_who __unused);
-    };
-
-    static sp<BinderDeathObserver> sBinderDeathObserver;
-
-    enum Section {
-        SECTION_TOPLEVEL,
-        SECTION_SETTINGS,
-        SECTION_DECODERS,
-        SECTION_DECODER,
-        SECTION_DECODER_TYPE,
-        SECTION_ENCODERS,
-        SECTION_ENCODER,
-        SECTION_ENCODER_TYPE,
-        SECTION_INCLUDE,
-    };
-
-    static sp<IMediaCodecList> sCodecList;
-    static sp<IMediaCodecList> sRemoteList;
-
-    status_t mInitCheck;
-    Section mCurrentSection;
-    bool mUpdate;
-    Vector<Section> mPastSections;
-    int32_t mDepth;
-    AString mHrefBase;
-
-    sp<AMessage> mGlobalSettings;
-    KeyedVector<AString, CodecSettings> mOverrides;
-
-    Vector<sp<MediaCodecInfo> > mCodecInfos;
-    sp<MediaCodecInfo> mCurrentInfo;
-    sp<IOMX> mOMX;
-
-    MediaCodecList();
-    ~MediaCodecList();
-
-    status_t initCheck() const;
-    void parseXMLFile(const char *path);
-
-    static void StartElementHandlerWrapper(
-            void *me, const char *name, const char **attrs);
-
-    static void EndElementHandlerWrapper(void *me, const char *name);
-
-    void startElementHandler(const char *name, const char **attrs);
-    void endElementHandler(const char *name);
-
-    status_t includeXMLFile(const char **attrs);
-    status_t addSettingFromAttributes(const char **attrs);
-    status_t addMediaCodecFromAttributes(bool encoder, const char **attrs);
-    void addMediaCodec(bool encoder, const char *name, const char *type = NULL);
-
-    void setCurrentCodecInfo(bool encoder, const char *name, const char *type);
-
-    status_t addQuirk(const char **attrs);
-    status_t addTypeFromAttributes(const char **attrs);
-    status_t addLimit(const char **attrs);
-    status_t addFeature(const char **attrs);
-    void addType(const char *name);
-
-    status_t initializeCapabilities(const char *type);
-
-    DISALLOW_EVIL_CONSTRUCTORS(MediaCodecList);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_CODEC_LIST_H_
-
diff --git a/include/media/stagefright/MediaCodecSource.h b/include/media/stagefright/MediaCodecSource.h
deleted file mode 100644
index 18b1955..0000000
--- a/include/media/stagefright/MediaCodecSource.h
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MediaCodecSource_H_
-#define MediaCodecSource_H_
-
-#include <media/stagefright/foundation/ABase.h>
-#include <media/stagefright/foundation/AHandlerReflector.h>
-#include <media/stagefright/foundation/Mutexed.h>
-#include <media/stagefright/MediaSource.h>
-
-#include <gui/IGraphicBufferConsumer.h>
-
-namespace android {
-
-struct ALooper;
-struct AMessage;
-struct AReplyToken;
-class IGraphicBufferProducer;
-struct MediaCodec;
-class MetaData;
-
-struct MediaCodecSource : public MediaSource,
-                          public MediaBufferObserver {
-    enum FlagBits {
-        FLAG_USE_SURFACE_INPUT      = 1,
-        FLAG_PREFER_SOFTWARE_CODEC  = 4,  // used for testing only
-    };
-
-    static sp<MediaCodecSource> Create(
-            const sp<ALooper> &looper,
-            const sp<AMessage> &format,
-            const sp<MediaSource> &source,
-            const sp<IGraphicBufferConsumer> &consumer = NULL,
-            uint32_t flags = 0);
-
-    bool isVideo() const { return mIsVideo; }
-    sp<IGraphicBufferProducer> getGraphicBufferProducer();
-    status_t setInputBufferTimeOffset(int64_t timeOffsetUs);
-    int64_t getFirstSampleSystemTimeUs();
-
-    // MediaSource
-    virtual status_t start(MetaData *params = NULL);
-    virtual status_t stop();
-    virtual status_t pause();
-    virtual sp<MetaData> getFormat();
-    virtual status_t read(
-            MediaBuffer **buffer,
-            const ReadOptions *options = NULL);
-
-    // MediaBufferObserver
-    virtual void signalBufferReturned(MediaBuffer *buffer);
-
-    // for AHandlerReflector
-    void onMessageReceived(const sp<AMessage> &msg);
-
-protected:
-    virtual ~MediaCodecSource();
-
-private:
-    struct Puller;
-
-    enum {
-        kWhatPullerNotify,
-        kWhatEncoderActivity,
-        kWhatStart,
-        kWhatStop,
-        kWhatPause,
-        kWhatSetInputBufferTimeOffset,
-        kWhatGetFirstSampleSystemTimeUs,
-        kWhatStopStalled,
-    };
-
-    MediaCodecSource(
-            const sp<ALooper> &looper,
-            const sp<AMessage> &outputFormat,
-            const sp<MediaSource> &source,
-            const sp<IGraphicBufferConsumer> &consumer,
-            uint32_t flags = 0);
-
-    status_t onStart(MetaData *params);
-    void onPause();
-    status_t init();
-    status_t initEncoder();
-    void releaseEncoder();
-    status_t feedEncoderInputBuffers();
-    void suspend();
-    void resume(int64_t skipFramesBeforeUs = -1ll);
-    void signalEOS(status_t err = ERROR_END_OF_STREAM);
-    bool reachedEOS();
-    status_t postSynchronouslyAndReturnError(const sp<AMessage> &msg);
-
-    sp<ALooper> mLooper;
-    sp<ALooper> mCodecLooper;
-    sp<AHandlerReflector<MediaCodecSource> > mReflector;
-    sp<AMessage> mOutputFormat;
-    Mutexed<sp<MetaData>> mMeta;
-    sp<Puller> mPuller;
-    sp<MediaCodec> mEncoder;
-    uint32_t mFlags;
-    List<sp<AReplyToken>> mStopReplyIDQueue;
-    bool mIsVideo;
-    bool mStarted;
-    bool mStopping;
-    bool mDoMoreWorkPending;
-    bool mSetEncoderFormat;
-    int32_t mEncoderFormat;
-    int32_t mEncoderDataSpace;
-    sp<AMessage> mEncoderActivityNotify;
-    sp<IGraphicBufferProducer> mGraphicBufferProducer;
-    sp<IGraphicBufferConsumer> mGraphicBufferConsumer;
-    List<MediaBuffer *> mInputBufferQueue;
-    List<size_t> mAvailEncoderInputIndices;
-    List<int64_t> mDecodingTimeQueue; // decoding time (us) for video
-    int64_t mInputBufferTimeOffsetUs;
-    int64_t mFirstSampleSystemTimeUs;
-    bool mPausePending;
-
-    // audio drift time
-    int64_t mFirstSampleTimeUs;
-    List<int64_t> mDriftTimeQueue;
-
-    struct Output {
-        Output();
-        List<MediaBuffer*> mBufferQueue;
-        bool mEncoderReachedEOS;
-        status_t mErrorCode;
-        Condition mCond;
-    };
-    Mutexed<Output> mOutput;
-
-    int32_t mGeneration;
-
-    DISALLOW_EVIL_CONSTRUCTORS(MediaCodecSource);
-};
-
-} // namespace android
-
-#endif /* MediaCodecSource_H_ */
diff --git a/include/media/stagefright/MediaDefs.h b/include/media/stagefright/MediaDefs.h
deleted file mode 100644
index 5f2a32d..0000000
--- a/include/media/stagefright/MediaDefs.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_DEFS_H_
-
-#define MEDIA_DEFS_H_
-
-namespace android {
-
-extern const char *MEDIA_MIMETYPE_IMAGE_JPEG;
-
-extern const char *MEDIA_MIMETYPE_VIDEO_VP8;
-extern const char *MEDIA_MIMETYPE_VIDEO_VP9;
-extern const char *MEDIA_MIMETYPE_VIDEO_AVC;
-extern const char *MEDIA_MIMETYPE_VIDEO_HEVC;
-extern const char *MEDIA_MIMETYPE_VIDEO_MPEG4;
-extern const char *MEDIA_MIMETYPE_VIDEO_H263;
-extern const char *MEDIA_MIMETYPE_VIDEO_MPEG2;
-extern const char *MEDIA_MIMETYPE_VIDEO_RAW;
-extern const char *MEDIA_MIMETYPE_VIDEO_DOLBY_VISION;
-
-extern const char *MEDIA_MIMETYPE_AUDIO_AMR_NB;
-extern const char *MEDIA_MIMETYPE_AUDIO_AMR_WB;
-extern const char *MEDIA_MIMETYPE_AUDIO_MPEG;           // layer III
-extern const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I;
-extern const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II;
-extern const char *MEDIA_MIMETYPE_AUDIO_MIDI;
-extern const char *MEDIA_MIMETYPE_AUDIO_AAC;
-extern const char *MEDIA_MIMETYPE_AUDIO_QCELP;
-extern const char *MEDIA_MIMETYPE_AUDIO_VORBIS;
-extern const char *MEDIA_MIMETYPE_AUDIO_OPUS;
-extern const char *MEDIA_MIMETYPE_AUDIO_G711_ALAW;
-extern const char *MEDIA_MIMETYPE_AUDIO_G711_MLAW;
-extern const char *MEDIA_MIMETYPE_AUDIO_RAW;
-extern const char *MEDIA_MIMETYPE_AUDIO_FLAC;
-extern const char *MEDIA_MIMETYPE_AUDIO_AAC_ADTS;
-extern const char *MEDIA_MIMETYPE_AUDIO_MSGSM;
-extern const char *MEDIA_MIMETYPE_AUDIO_AC3;
-extern const char *MEDIA_MIMETYPE_AUDIO_EAC3;
-
-extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG4;
-extern const char *MEDIA_MIMETYPE_CONTAINER_WAV;
-extern const char *MEDIA_MIMETYPE_CONTAINER_OGG;
-extern const char *MEDIA_MIMETYPE_CONTAINER_MATROSKA;
-extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG2TS;
-extern const char *MEDIA_MIMETYPE_CONTAINER_AVI;
-extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG2PS;
-
-extern const char *MEDIA_MIMETYPE_CONTAINER_WVM;
-
-extern const char *MEDIA_MIMETYPE_TEXT_3GPP;
-extern const char *MEDIA_MIMETYPE_TEXT_SUBRIP;
-extern const char *MEDIA_MIMETYPE_TEXT_VTT;
-extern const char *MEDIA_MIMETYPE_TEXT_CEA_608;
-extern const char *MEDIA_MIMETYPE_TEXT_CEA_708;
-extern const char *MEDIA_MIMETYPE_DATA_TIMED_ID3;
-
-// These are values exported to JAVA API that need to be in sync with
-// frameworks/base/media/java/android/media/AudioFormat.java. Unfortunately,
-// they are not defined in frameworks/av, so defining them here.
-enum AudioEncoding {
-    kAudioEncodingPcm16bit = 2,
-    kAudioEncodingPcm8bit = 3,
-    kAudioEncodingPcmFloat = 4,
-};
-
-}  // namespace android
-
-#endif  // MEDIA_DEFS_H_
diff --git a/include/media/stagefright/MediaExtractor.h b/include/media/stagefright/MediaExtractor.h
deleted file mode 100644
index 6bf8c9e..0000000
--- a/include/media/stagefright/MediaExtractor.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_EXTRACTOR_H_
-
-#define MEDIA_EXTRACTOR_H_
-
-#include <media/IMediaExtractor.h>
-#include <media/IMediaSource.h>
-
-namespace android {
-
-class DataSource;
-class MediaSource;
-class MetaData;
-
-class MediaExtractor : public BnMediaExtractor {
-public:
-    static sp<IMediaExtractor> Create(
-            const sp<DataSource> &source, const char *mime = NULL);
-    static sp<MediaExtractor> CreateFromService(
-            const sp<DataSource> &source, const char *mime = NULL);
-
-    virtual size_t countTracks() = 0;
-    virtual sp<IMediaSource> getTrack(size_t index) = 0;
-
-    enum GetTrackMetaDataFlags {
-        kIncludeExtensiveMetaData = 1
-    };
-    virtual sp<MetaData> getTrackMetaData(
-            size_t index, uint32_t flags = 0) = 0;
-
-    // Return container specific meta-data. The default implementation
-    // returns an empty metadata object.
-    virtual sp<MetaData> getMetaData();
-
-    enum Flags {
-        CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
-        CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
-        CAN_PAUSE          = 4,
-        CAN_SEEK           = 8,  // the "seek bar"
-    };
-
-    // If subclasses do _not_ override this, the default is
-    // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
-    virtual uint32_t flags() const;
-
-    // for DRM
-    void setDrmFlag(bool flag) {
-        mIsDrm = flag;
-    };
-    bool getDrmFlag() {
-        return mIsDrm;
-    }
-    virtual char* getDrmTrackInfo(size_t trackID, int *len) {
-        return NULL;
-    }
-    virtual void setUID(uid_t uid) {
-    }
-
-    virtual const char * name() { return "<unspecified>"; }
-
-protected:
-    MediaExtractor();
-    virtual ~MediaExtractor() {}
-
-private:
-    bool mIsDrm;
-
-    MediaExtractor(const MediaExtractor &);
-    MediaExtractor &operator=(const MediaExtractor &);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_EXTRACTOR_H_
diff --git a/include/media/stagefright/MediaFilter.h b/include/media/stagefright/MediaFilter.h
deleted file mode 100644
index d0a572c..0000000
--- a/include/media/stagefright/MediaFilter.h
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_FILTER_H_
-#define MEDIA_FILTER_H_
-
-#include <media/stagefright/CodecBase.h>
-
-namespace android {
-
-struct ABuffer;
-struct GraphicBufferListener;
-struct MemoryDealer;
-struct SimpleFilter;
-
-struct MediaFilter : public CodecBase {
-    MediaFilter();
-
-    virtual void setNotificationMessage(const sp<AMessage> &msg);
-
-    virtual void initiateAllocateComponent(const sp<AMessage> &msg);
-    virtual void initiateConfigureComponent(const sp<AMessage> &msg);
-    virtual void initiateCreateInputSurface();
-    virtual void initiateSetInputSurface(const sp<PersistentSurface> &surface);
-
-    virtual void initiateStart();
-    virtual void initiateShutdown(bool keepComponentAllocated = false);
-
-    virtual void signalFlush();
-    virtual void signalResume();
-
-    virtual void signalRequestIDRFrame();
-    virtual void signalSetParameters(const sp<AMessage> &msg);
-    virtual void signalEndOfInputStream();
-
-    virtual void onMessageReceived(const sp<AMessage> &msg);
-
-    struct PortDescription : public CodecBase::PortDescription {
-        virtual size_t countBuffers();
-        virtual IOMX::buffer_id bufferIDAt(size_t index) const;
-        virtual sp<ABuffer> bufferAt(size_t index) const;
-
-    protected:
-        PortDescription();
-
-    private:
-        friend struct MediaFilter;
-
-        Vector<IOMX::buffer_id> mBufferIDs;
-        Vector<sp<ABuffer> > mBuffers;
-
-        void addBuffer(IOMX::buffer_id id, const sp<ABuffer> &buffer);
-
-        DISALLOW_EVIL_CONSTRUCTORS(PortDescription);
-    };
-
-protected:
-    virtual ~MediaFilter();
-
-private:
-    struct BufferInfo {
-        enum Status {
-            OWNED_BY_US,
-            OWNED_BY_UPSTREAM,
-        };
-
-        IOMX::buffer_id mBufferID;
-        int32_t mGeneration;
-        int32_t mOutputFlags;
-        Status mStatus;
-
-        sp<ABuffer> mData;
-    };
-
-    enum State {
-      UNINITIALIZED,
-      INITIALIZED,
-      CONFIGURED,
-      STARTED,
-    };
-
-    enum {
-        kWhatInputBufferFilled       = 'inpF',
-        kWhatOutputBufferDrained     = 'outD',
-        kWhatShutdown                = 'shut',
-        kWhatFlush                   = 'flus',
-        kWhatResume                  = 'resm',
-        kWhatAllocateComponent       = 'allo',
-        kWhatConfigureComponent      = 'conf',
-        kWhatCreateInputSurface      = 'cisf',
-        kWhatSignalEndOfInputStream  = 'eois',
-        kWhatStart                   = 'star',
-        kWhatSetParameters           = 'setP',
-        kWhatProcessBuffers          = 'proc',
-    };
-
-    enum {
-        kPortIndexInput  = 0,
-        kPortIndexOutput = 1
-    };
-
-    // member variables
-    AString mComponentName;
-    State mState;
-    status_t mInputEOSResult;
-    int32_t mWidth, mHeight;
-    int32_t mStride, mSliceHeight;
-    int32_t mColorFormatIn, mColorFormatOut;
-    size_t mMaxInputSize, mMaxOutputSize;
-    int32_t mGeneration;
-    sp<AMessage> mNotify;
-    sp<AMessage> mInputFormat;
-    sp<AMessage> mOutputFormat;
-
-    sp<MemoryDealer> mDealer[2];
-    Vector<BufferInfo> mBuffers[2];
-    Vector<BufferInfo*> mAvailableInputBuffers;
-    Vector<BufferInfo*> mAvailableOutputBuffers;
-    bool mPortEOS[2];
-
-    sp<SimpleFilter> mFilter;
-    sp<GraphicBufferListener> mGraphicBufferListener;
-
-    // helper functions
-    void signalProcessBuffers();
-    void signalError(status_t error);
-
-    status_t allocateBuffersOnPort(OMX_U32 portIndex);
-    BufferInfo *findBufferByID(
-            uint32_t portIndex, IOMX::buffer_id bufferID,
-            ssize_t *index = NULL);
-    void postFillThisBuffer(BufferInfo *info);
-    void postDrainThisBuffer(BufferInfo *info);
-    void postEOS();
-    void sendFormatChange();
-    void requestFillEmptyInput();
-    void processBuffers();
-
-    void onAllocateComponent(const sp<AMessage> &msg);
-    void onConfigureComponent(const sp<AMessage> &msg);
-    void onStart();
-    void onInputBufferFilled(const sp<AMessage> &msg);
-    void onOutputBufferDrained(const sp<AMessage> &msg);
-    void onShutdown(const sp<AMessage> &msg);
-    void onFlush();
-    void onSetParameters(const sp<AMessage> &msg);
-    void onCreateInputSurface();
-    void onInputFrameAvailable();
-    void onSignalEndOfInputStream();
-
-    DISALLOW_EVIL_CONSTRUCTORS(MediaFilter);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_FILTER_H_
diff --git a/include/media/stagefright/MediaMuxer.h b/include/media/stagefright/MediaMuxer.h
deleted file mode 100644
index fa855a8..0000000
--- a/include/media/stagefright/MediaMuxer.h
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Copyright 2013, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_MUXER_H_
-#define MEDIA_MUXER_H_
-
-#include <utils/Errors.h>
-#include <utils/RefBase.h>
-#include <utils/Vector.h>
-#include <utils/threads.h>
-
-#include "foundation/ABase.h"
-
-namespace android {
-
-struct ABuffer;
-struct AMessage;
-struct MediaAdapter;
-class MediaBuffer;
-struct MediaSource;
-class MetaData;
-struct MediaWriter;
-
-// MediaMuxer is used to mux multiple tracks into a video. Currently, we only
-// support a mp4 file as the output.
-// The expected calling order of the functions is:
-// Constructor -> addTrack+ -> start -> writeSampleData+ -> stop
-// If muxing operation need to be cancelled, the app is responsible for
-// deleting the output file after stop.
-struct MediaMuxer : public RefBase {
-public:
-    // Please update media/java/android/media/MediaMuxer.java if the
-    // OutputFormat is updated.
-    enum OutputFormat {
-        OUTPUT_FORMAT_MPEG_4 = 0,
-        OUTPUT_FORMAT_WEBM   = 1,
-        OUTPUT_FORMAT_LIST_END // must be last - used to validate format type
-    };
-
-    // Construct the muxer with the file descriptor. Note that the MediaMuxer
-    // will close this file at stop().
-    MediaMuxer(int fd, OutputFormat format);
-
-    virtual ~MediaMuxer();
-
-    /**
-     * Add a track with its format information. This should be
-     * called before start().
-     * @param format the track's format.
-     * @return the track's index or negative number if error.
-     */
-    ssize_t addTrack(const sp<AMessage> &format);
-
-    /**
-     * Start muxing. Make sure all the tracks have been added before
-     * calling this.
-     */
-    status_t start();
-
-    /**
-     * Set the orientation hint.
-     * @param degrees The rotation degrees. It has to be either 0,
-     *                90, 180 or 270.
-     * @return OK if no error.
-     */
-    status_t setOrientationHint(int degrees);
-
-    /**
-     * Set the location.
-     * @param latitude The latitude in degree x 1000. Its value must be in the range
-     * [-900000, 900000].
-     * @param longitude The longitude in degree x 1000. Its value must be in the range
-     * [-1800000, 1800000].
-     * @return OK if no error.
-     */
-    status_t setLocation(int latitude, int longitude);
-
-    /**
-     * Stop muxing.
-     * This method is a blocking call. Depending on how
-     * much data is bufferred internally, the time needed for stopping
-     * the muxer may be time consuming. UI thread is
-     * not recommended for launching this call.
-     * @return OK if no error.
-     */
-    status_t stop();
-
-    /**
-     * Send a sample buffer for muxing.
-     * The buffer can be reused once this method returns. Typically,
-     * this function won't be blocked for very long, and thus there
-     * is no need to use a separate thread calling this method to
-     * push a buffer.
-     * @param buffer the incoming sample buffer.
-     * @param trackIndex the buffer's track index number.
-     * @param timeUs the buffer's time stamp.
-     * @param flags the only supported flag for now is
-     *              MediaCodec::BUFFER_FLAG_SYNCFRAME.
-     * @return OK if no error.
-     */
-    status_t writeSampleData(const sp<ABuffer> &buffer, size_t trackIndex,
-                             int64_t timeUs, uint32_t flags) ;
-
-private:
-    const OutputFormat mFormat;
-    sp<MediaWriter> mWriter;
-    Vector< sp<MediaAdapter> > mTrackList;  // Each track has its MediaAdapter.
-    sp<MetaData> mFileMeta;  // Metadata for the whole file.
-
-    Mutex mMuxerLock;
-
-    enum State {
-        UNINITIALIZED,
-        INITIALIZED,
-        STARTED,
-        STOPPED
-    };
-    State mState;
-
-    DISALLOW_EVIL_CONSTRUCTORS(MediaMuxer);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_MUXER_H_
-
diff --git a/include/media/stagefright/MediaWriter.h b/include/media/stagefright/MediaWriter.h
deleted file mode 100644
index b6476c9..0000000
--- a/include/media/stagefright/MediaWriter.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_WRITER_H_
-
-#define MEDIA_WRITER_H_
-
-#include <utils/RefBase.h>
-#include <media/IMediaRecorderClient.h>
-#include <media/IMediaSource.h>
-
-namespace android {
-
-class MetaData;
-
-struct MediaWriter : public RefBase {
-    MediaWriter()
-        : mMaxFileSizeLimitBytes(0),
-          mMaxFileDurationLimitUs(0) {
-    }
-
-    virtual status_t addSource(const sp<IMediaSource> &source) = 0;
-    virtual bool reachedEOS() = 0;
-    virtual status_t start(MetaData *params = NULL) = 0;
-    virtual status_t stop() = 0;
-    virtual status_t pause() = 0;
-
-    virtual void setMaxFileSize(int64_t bytes) { mMaxFileSizeLimitBytes = bytes; }
-    virtual void setMaxFileDuration(int64_t durationUs) { mMaxFileDurationLimitUs = durationUs; }
-    virtual void setListener(const sp<IMediaRecorderClient>& listener) {
-        mListener = listener;
-    }
-
-    virtual status_t dump(int fd, const Vector<String16>& args) {
-        return OK;
-    }
-
-    virtual void setStartTimeOffsetMs(int ms) {}
-    virtual int32_t getStartTimeOffsetMs() const { return 0; }
-
-protected:
-    virtual ~MediaWriter() {}
-    int64_t mMaxFileSizeLimitBytes;
-    int64_t mMaxFileDurationLimitUs;
-    sp<IMediaRecorderClient> mListener;
-
-    void notify(int msg, int ext1, int ext2) {
-        if (mListener != NULL) {
-            mListener->notify(msg, ext1, ext2);
-        }
-    }
-private:
-    MediaWriter(const MediaWriter &);
-    MediaWriter &operator=(const MediaWriter &);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_WRITER_H_
diff --git a/include/media/stagefright/MetaData.h b/include/media/stagefright/MetaData.h
deleted file mode 100644
index 6ba7b32..0000000
--- a/include/media/stagefright/MetaData.h
+++ /dev/null
@@ -1,325 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef META_DATA_H_
-
-#define META_DATA_H_
-
-#include <sys/types.h>
-
-#include <stdint.h>
-
-#include <binder/Parcel.h>
-#include <utils/RefBase.h>
-#include <utils/KeyedVector.h>
-#include <utils/String8.h>
-
-namespace android {
-
-// The following keys map to int32_t data unless indicated otherwise.
-enum {
-    kKeyMIMEType          = 'mime',  // cstring
-    kKeyWidth             = 'widt',  // int32_t, image pixel
-    kKeyHeight            = 'heig',  // int32_t, image pixel
-    kKeyDisplayWidth      = 'dWid',  // int32_t, display/presentation
-    kKeyDisplayHeight     = 'dHgt',  // int32_t, display/presentation
-    kKeySARWidth          = 'sarW',  // int32_t, sampleAspectRatio width
-    kKeySARHeight         = 'sarH',  // int32_t, sampleAspectRatio height
-
-    // a rectangle, if absent assumed to be (0, 0, width - 1, height - 1)
-    kKeyCropRect          = 'crop',
-
-    kKeyRotation          = 'rotA',  // int32_t (angle in degrees)
-    kKeyIFramesInterval   = 'ifiv',  // int32_t
-    kKeyStride            = 'strd',  // int32_t
-    kKeySliceHeight       = 'slht',  // int32_t
-    kKeyChannelCount      = '#chn',  // int32_t
-    kKeyChannelMask       = 'chnm',  // int32_t
-    kKeySampleRate        = 'srte',  // int32_t (audio sampling rate Hz)
-    kKeyPcmEncoding       = 'PCMe',  // int32_t (audio encoding enum)
-    kKeyFrameRate         = 'frmR',  // int32_t (video frame rate fps)
-    kKeyBitRate           = 'brte',  // int32_t (bps)
-    kKeyMaxBitRate        = 'mxBr',  // int32_t (bps)
-    kKeyStreamHeader      = 'stHd',  // raw data
-    kKeyESDS              = 'esds',  // raw data
-    kKeyAACProfile        = 'aacp',  // int32_t
-    kKeyAVCC              = 'avcc',  // raw data
-    kKeyHVCC              = 'hvcc',  // raw data
-    kKeyD263              = 'd263',  // raw data
-    kKeyVorbisInfo        = 'vinf',  // raw data
-    kKeyVorbisBooks       = 'vboo',  // raw data
-    kKeyOpusHeader        = 'ohdr',  // raw data
-    kKeyOpusCodecDelay    = 'ocod',  // uint64_t (codec delay in ns)
-    kKeyOpusSeekPreRoll   = 'ospr',  // uint64_t (seek preroll in ns)
-    kKeyVp9CodecPrivate   = 'vp9p',  // raw data (vp9 csd information)
-    kKeyWantsNALFragments = 'NALf',
-    kKeyIsSyncFrame       = 'sync',  // int32_t (bool)
-    kKeyIsCodecConfig     = 'conf',  // int32_t (bool)
-    kKeyTime              = 'time',  // int64_t (usecs)
-    kKeyDecodingTime      = 'decT',  // int64_t (decoding timestamp in usecs)
-    kKeyNTPTime           = 'ntpT',  // uint64_t (ntp-timestamp)
-    kKeyTargetTime        = 'tarT',  // int64_t (usecs)
-    kKeyDriftTime         = 'dftT',  // int64_t (usecs)
-    kKeyAnchorTime        = 'ancT',  // int64_t (usecs)
-    kKeyDuration          = 'dura',  // int64_t (usecs)
-    kKeyPixelFormat       = 'pixf',  // int32_t
-    kKeyColorFormat       = 'colf',  // int32_t
-    kKeyColorSpace        = 'cols',  // int32_t
-    kKeyPlatformPrivate   = 'priv',  // pointer
-    kKeyDecoderComponent  = 'decC',  // cstring
-    kKeyBufferID          = 'bfID',
-    kKeyMaxInputSize      = 'inpS',
-    kKeyMaxWidth          = 'maxW',
-    kKeyMaxHeight         = 'maxH',
-    kKeyThumbnailTime     = 'thbT',  // int64_t (usecs)
-    kKeyTrackID           = 'trID',
-    kKeyIsDRM             = 'idrm',  // int32_t (bool)
-    kKeyEncoderDelay      = 'encd',  // int32_t (frames)
-    kKeyEncoderPadding    = 'encp',  // int32_t (frames)
-
-    kKeyAlbum             = 'albu',  // cstring
-    kKeyArtist            = 'arti',  // cstring
-    kKeyAlbumArtist       = 'aart',  // cstring
-    kKeyComposer          = 'comp',  // cstring
-    kKeyGenre             = 'genr',  // cstring
-    kKeyTitle             = 'titl',  // cstring
-    kKeyYear              = 'year',  // cstring
-    kKeyAlbumArt          = 'albA',  // compressed image data
-    kKeyAlbumArtMIME      = 'alAM',  // cstring
-    kKeyAuthor            = 'auth',  // cstring
-    kKeyCDTrackNumber     = 'cdtr',  // cstring
-    kKeyDiscNumber        = 'dnum',  // cstring
-    kKeyDate              = 'date',  // cstring
-    kKeyWriter            = 'writ',  // cstring
-    kKeyCompilation       = 'cpil',  // cstring
-    kKeyLocation          = 'loc ',  // cstring
-    kKeyTimeScale         = 'tmsl',  // int32_t
-    kKeyCaptureFramerate  = 'capF',  // float (capture fps)
-
-    // video profile and level
-    kKeyVideoProfile      = 'vprf',  // int32_t
-    kKeyVideoLevel        = 'vlev',  // int32_t
-
-    // Set this key to enable authoring files in 64-bit offset
-    kKey64BitFileOffset   = 'fobt',  // int32_t (bool)
-    kKey2ByteNalLength    = '2NAL',  // int32_t (bool)
-
-    // Identify the file output format for authoring
-    // Please see <media/mediarecorder.h> for the supported
-    // file output formats.
-    kKeyFileType          = 'ftyp',  // int32_t
-
-    // Track authoring progress status
-    // kKeyTrackTimeStatus is used to track progress in elapsed time
-    kKeyTrackTimeStatus   = 'tktm',  // int64_t
-
-    kKeyRealTimeRecording = 'rtrc',  // bool (int32_t)
-    kKeyNumBuffers        = 'nbbf',  // int32_t
-
-    // Ogg files can be tagged to be automatically looping...
-    kKeyAutoLoop          = 'autL',  // bool (int32_t)
-
-    kKeyValidSamples      = 'valD',  // int32_t
-
-    kKeyIsUnreadable      = 'unre',  // bool (int32_t)
-
-    // An indication that a video buffer has been rendered.
-    kKeyRendered          = 'rend',  // bool (int32_t)
-
-    // The language code for this media
-    kKeyMediaLanguage     = 'lang',  // cstring
-
-    // To store the timed text format data
-    kKeyTextFormatData    = 'text',  // raw data
-
-    kKeyRequiresSecureBuffers = 'secu',  // bool (int32_t)
-
-    kKeyIsADTS            = 'adts',  // bool (int32_t)
-    kKeyAACAOT            = 'aaot',  // int32_t
-
-    // If a MediaBuffer's data represents (at least partially) encrypted
-    // data, the following fields aid in decryption.
-    // The data can be thought of as pairs of plain and encrypted data
-    // fragments, i.e. plain and encrypted data alternate.
-    // The first fragment is by convention plain data (if that's not the
-    // case, simply specify plain fragment size of 0).
-    // kKeyEncryptedSizes and kKeyPlainSizes each map to an array of
-    // size_t values. The sum total of all size_t values of both arrays
-    // must equal the amount of data (i.e. MediaBuffer's range_length()).
-    // If both arrays are present, they must be of the same size.
-    // If only encrypted sizes are present it is assumed that all
-    // plain sizes are 0, i.e. all fragments are encrypted.
-    // To programmatically set these array, use the MetaData::setData API, i.e.
-    // const size_t encSizes[];
-    // meta->setData(
-    //  kKeyEncryptedSizes, 0 /* type */, encSizes, sizeof(encSizes));
-    // A plain sizes array by itself makes no sense.
-    kKeyEncryptedSizes    = 'encr',  // size_t[]
-    kKeyPlainSizes        = 'plai',  // size_t[]
-    kKeyCryptoKey         = 'cryK',  // uint8_t[16]
-    kKeyCryptoIV          = 'cryI',  // uint8_t[16]
-    kKeyCryptoMode        = 'cryM',  // int32_t
-
-    kKeyCryptoDefaultIVSize = 'cryS',  // int32_t
-
-    kKeyPssh              = 'pssh',  // raw data
-
-    // Please see MediaFormat.KEY_IS_AUTOSELECT.
-    kKeyTrackIsAutoselect = 'auto', // bool (int32_t)
-    // Please see MediaFormat.KEY_IS_DEFAULT.
-    kKeyTrackIsDefault    = 'dflt', // bool (int32_t)
-    // Similar to MediaFormat.KEY_IS_FORCED_SUBTITLE but pertains to av tracks as well.
-    kKeyTrackIsForced     = 'frcd', // bool (int32_t)
-
-    // H264 supplemental enhancement information offsets/sizes
-    kKeySEI               = 'sei ', // raw data
-
-    // MPEG user data offsets
-    kKeyMpegUserData      = 'mpud', // size_t[]
-
-    // Size of NALU length in mkv/mp4
-    kKeyNalLengthSize     = 'nals', // int32_t
-
-    // HDR related
-    kKeyHdrStaticInfo    = 'hdrS', // HDRStaticInfo
-
-    // color aspects
-    kKeyColorRange       = 'cRng', // int32_t, color range, value defined by ColorAspects.Range
-    kKeyColorPrimaries   = 'cPrm', // int32_t,
-                                   // color Primaries, value defined by ColorAspects.Primaries
-    kKeyTransferFunction = 'tFun', // int32_t,
-                                   // transfer Function, value defined by ColorAspects.Transfer.
-    kKeyColorMatrix      = 'cMtx', // int32_t,
-                                   // color Matrix, value defined by ColorAspects.MatrixCoeffs.
-    kKeyTemporalLayerId  = 'iLyr', // int32_t, temporal layer-id. 0-based (0 => base layer)
-    kKeyTemporalLayerCount = 'cLyr', // int32_t, number of temporal layers encoded
-};
-
-enum {
-    kTypeESDS        = 'esds',
-    kTypeAVCC        = 'avcc',
-    kTypeHVCC        = 'hvcc',
-    kTypeD263        = 'd263',
-};
-
-class MetaData : public RefBase {
-public:
-    MetaData();
-    MetaData(const MetaData &from);
-
-    enum Type {
-        TYPE_NONE     = 'none',
-        TYPE_C_STRING = 'cstr',
-        TYPE_INT32    = 'in32',
-        TYPE_INT64    = 'in64',
-        TYPE_FLOAT    = 'floa',
-        TYPE_POINTER  = 'ptr ',
-        TYPE_RECT     = 'rect',
-    };
-
-    void clear();
-    bool remove(uint32_t key);
-
-    bool setCString(uint32_t key, const char *value);
-    bool setInt32(uint32_t key, int32_t value);
-    bool setInt64(uint32_t key, int64_t value);
-    bool setFloat(uint32_t key, float value);
-    bool setPointer(uint32_t key, void *value);
-
-    bool setRect(
-            uint32_t key,
-            int32_t left, int32_t top,
-            int32_t right, int32_t bottom);
-
-    bool findCString(uint32_t key, const char **value);
-    bool findInt32(uint32_t key, int32_t *value);
-    bool findInt64(uint32_t key, int64_t *value);
-    bool findFloat(uint32_t key, float *value);
-    bool findPointer(uint32_t key, void **value);
-
-    bool findRect(
-            uint32_t key,
-            int32_t *left, int32_t *top,
-            int32_t *right, int32_t *bottom);
-
-    bool setData(uint32_t key, uint32_t type, const void *data, size_t size);
-
-    bool findData(uint32_t key, uint32_t *type,
-                  const void **data, size_t *size) const;
-
-    bool hasData(uint32_t key) const;
-
-    String8 toString() const;
-    void dumpToLog() const;
-
-    status_t writeToParcel(Parcel &parcel);
-    status_t updateFromParcel(const Parcel &parcel);
-    static sp<MetaData> createFromParcel(const Parcel &parcel);
-
-protected:
-    virtual ~MetaData();
-
-private:
-    struct typed_data {
-        typed_data();
-        ~typed_data();
-
-        typed_data(const MetaData::typed_data &);
-        typed_data &operator=(const MetaData::typed_data &);
-
-        void clear();
-        void setData(uint32_t type, const void *data, size_t size);
-        void getData(uint32_t *type, const void **data, size_t *size) const;
-        // may include hexdump of binary data if verbose=true
-        String8 asString(bool verbose) const;
-
-    private:
-        uint32_t mType;
-        size_t mSize;
-
-        union {
-            void *ext_data;
-            float reservoir;
-        } u;
-
-        bool usesReservoir() const {
-            return mSize <= sizeof(u.reservoir);
-        }
-
-        void *allocateStorage(size_t size);
-        void freeStorage();
-
-        void *storage() {
-            return usesReservoir() ? &u.reservoir : u.ext_data;
-        }
-
-        const void *storage() const {
-            return usesReservoir() ? &u.reservoir : u.ext_data;
-        }
-    };
-
-    struct Rect {
-        int32_t mLeft, mTop, mRight, mBottom;
-    };
-
-    KeyedVector<uint32_t, typed_data> mItems;
-
-    // MetaData &operator=(const MetaData &);
-};
-
-}  // namespace android
-
-#endif  // META_DATA_H_
diff --git a/include/media/stagefright/NuMediaExtractor.h b/include/media/stagefright/NuMediaExtractor.h
deleted file mode 100644
index 03e2185..0000000
--- a/include/media/stagefright/NuMediaExtractor.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright 2012, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef NU_MEDIA_EXTRACTOR_H_
-#define NU_MEDIA_EXTRACTOR_H_
-
-#include <media/stagefright/foundation/ABase.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/IMediaExtractor.h>
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/RefBase.h>
-#include <utils/String8.h>
-#include <utils/threads.h>
-#include <utils/Vector.h>
-
-namespace android {
-
-struct ABuffer;
-struct AMessage;
-class DataSource;
-struct IMediaHTTPService;
-class MediaBuffer;
-struct MediaExtractor;
-struct MediaSource;
-class MetaData;
-
-struct NuMediaExtractor : public RefBase {
-    enum SampleFlags {
-        SAMPLE_FLAG_SYNC        = 1,
-        SAMPLE_FLAG_ENCRYPTED   = 2,
-    };
-
-    // identical to IMediaExtractor::GetTrackMetaDataFlags
-    enum GetTrackFormatFlags {
-        kIncludeExtensiveMetaData = 1, // reads sample table and possibly stream headers
-    };
-
-    NuMediaExtractor();
-
-    status_t setDataSource(
-            const sp<IMediaHTTPService> &httpService,
-            const char *path,
-            const KeyedVector<String8, String8> *headers = NULL);
-
-    status_t setDataSource(int fd, off64_t offset, off64_t size);
-
-    status_t setDataSource(const sp<DataSource> &datasource);
-
-    size_t countTracks() const;
-    status_t getTrackFormat(size_t index, sp<AMessage> *format, uint32_t flags = 0) const;
-
-    status_t getFileFormat(sp<AMessage> *format) const;
-
-    status_t selectTrack(size_t index);
-    status_t unselectTrack(size_t index);
-
-    status_t seekTo(
-            int64_t timeUs,
-            MediaSource::ReadOptions::SeekMode mode =
-                MediaSource::ReadOptions::SEEK_CLOSEST_SYNC);
-
-    status_t advance();
-    status_t readSampleData(const sp<ABuffer> &buffer);
-    status_t getSampleTrackIndex(size_t *trackIndex);
-    status_t getSampleTime(int64_t *sampleTimeUs);
-    status_t getSampleMeta(sp<MetaData> *sampleMeta);
-
-    bool getCachedDuration(int64_t *durationUs, bool *eos) const;
-
-protected:
-    virtual ~NuMediaExtractor();
-
-private:
-    enum TrackFlags {
-        kIsVorbis       = 1,
-    };
-
-    enum {
-        kMaxTrackCount = 16384,
-    };
-
-    struct TrackInfo {
-        sp<IMediaSource> mSource;
-        size_t mTrackIndex;
-        status_t mFinalResult;
-        MediaBuffer *mSample;
-        int64_t mSampleTimeUs;
-
-        uint32_t mTrackFlags;  // bitmask of "TrackFlags"
-    };
-
-    mutable Mutex mLock;
-
-    sp<DataSource> mDataSource;
-
-    sp<IMediaExtractor> mImpl;
-    bool mIsWidevineExtractor;
-
-    Vector<TrackInfo> mSelectedTracks;
-    int64_t mTotalBitrate;  // in bits/sec
-    int64_t mDurationUs;
-
-    ssize_t fetchTrackSamples(
-            int64_t seekTimeUs = -1ll,
-            MediaSource::ReadOptions::SeekMode mode =
-                MediaSource::ReadOptions::SEEK_CLOSEST_SYNC);
-
-    void releaseTrackSamples();
-
-    bool getTotalBitrate(int64_t *bitRate) const;
-    status_t updateDurationAndBitrate();
-    status_t appendVorbisNumPageSamples(TrackInfo *info, const sp<ABuffer> &buffer);
-
-    DISALLOW_EVIL_CONSTRUCTORS(NuMediaExtractor);
-};
-
-}  // namespace android
-
-#endif  // NU_MEDIA_EXTRACTOR_H_
-
diff --git a/include/media/stagefright/OMXClient.h b/include/media/stagefright/OMXClient.h
deleted file mode 100644
index 2f14d06..0000000
--- a/include/media/stagefright/OMXClient.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef OMX_CLIENT_H_
-
-#define OMX_CLIENT_H_
-
-#include <media/IOMX.h>
-
-namespace android {
-
-class OMXClient {
-public:
-    OMXClient();
-
-    status_t connect();
-    void disconnect();
-
-    sp<IOMX> interface() {
-        return mOMX;
-    }
-
-private:
-    sp<IOMX> mOMX;
-
-    OMXClient(const OMXClient &);
-    OMXClient &operator=(const OMXClient &);
-};
-
-}  // namespace android
-
-#endif  // OMX_CLIENT_H_
diff --git a/include/media/stagefright/PersistentSurface.h b/include/media/stagefright/PersistentSurface.h
deleted file mode 100644
index a35b9f1..0000000
--- a/include/media/stagefright/PersistentSurface.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Copyright 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef PERSISTENT_SURFACE_H_
-
-#define PERSISTENT_SURFACE_H_
-
-#include <gui/IGraphicBufferProducer.h>
-#include <gui/IGraphicBufferConsumer.h>
-#include <media/stagefright/foundation/ABase.h>
-
-namespace android {
-
-struct PersistentSurface : public RefBase {
-    PersistentSurface(
-            const sp<IGraphicBufferProducer>& bufferProducer,
-            const sp<IGraphicBufferConsumer>& bufferConsumer) :
-        mBufferProducer(bufferProducer),
-        mBufferConsumer(bufferConsumer) { }
-
-    sp<IGraphicBufferProducer> getBufferProducer() const {
-        return mBufferProducer;
-    }
-
-    sp<IGraphicBufferConsumer> getBufferConsumer() const {
-        return mBufferConsumer;
-    }
-
-private:
-    const sp<IGraphicBufferProducer> mBufferProducer;
-    const sp<IGraphicBufferConsumer> mBufferConsumer;
-
-    DISALLOW_EVIL_CONSTRUCTORS(PersistentSurface);
-};
-
-}  // namespace android
-
-#endif  // PERSISTENT_SURFACE_H_
diff --git a/include/media/stagefright/SkipCutBuffer.h b/include/media/stagefright/SkipCutBuffer.h
deleted file mode 100644
index 61f9949..0000000
--- a/include/media/stagefright/SkipCutBuffer.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SKIP_CUT_BUFFER_H_
-
-#define SKIP_CUT_BUFFER_H_
-
-#include <media/stagefright/MediaBuffer.h>
-#include <media/stagefright/foundation/ABuffer.h>
-
-namespace android {
-
-/**
- * utility class to cut the start and end off a stream of data in MediaBuffers
- *
- */
-class SkipCutBuffer: public RefBase {
- public:
-    // 'skip' is the number of frames to skip from the beginning
-    // 'cut' is the number of frames to cut from the end
-    // 'num16BitChannels' is the number of channels, which are assumed to be 16 bit wide each
-    SkipCutBuffer(size_t skip, size_t cut, size_t num16Channels);
-
-    // Submit one MediaBuffer for skipping and cutting. This may consume all or
-    // some of the data in the buffer, or it may add data to it.
-    // After this, the caller should continue processing the buffer as usual.
-    void submit(MediaBuffer *buffer);
-    void submit(const sp<ABuffer>& buffer);    // same as above, but with an ABuffer
-    void clear();
-    size_t size(); // how many bytes are currently stored in the buffer
-
- protected:
-    virtual ~SkipCutBuffer();
-
- private:
-    void write(const char *src, size_t num);
-    size_t read(char *dst, size_t num);
-    int32_t mSkip;
-    int32_t mFrontPadding;
-    int32_t mBackPadding;
-    int32_t mWriteHead;
-    int32_t mReadHead;
-    int32_t mCapacity;
-    char* mCutBuffer;
-    DISALLOW_EVIL_CONSTRUCTORS(SkipCutBuffer);
-};
-
-}  // namespace android
-
-#endif  // OMX_CODEC_H_
diff --git a/include/media/stagefright/SurfaceMediaSource.h b/include/media/stagefright/SurfaceMediaSource.h
deleted file mode 100644
index ca3a3bf..0000000
--- a/include/media/stagefright/SurfaceMediaSource.h
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_GUI_SURFACEMEDIASOURCE_H
-#define ANDROID_GUI_SURFACEMEDIASOURCE_H
-
-#include <gui/IGraphicBufferProducer.h>
-#include <gui/BufferQueue.h>
-
-#include <utils/threads.h>
-#include <utils/Vector.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MediaBuffer.h>
-
-#include <MetadataBufferType.h>
-
-#include "foundation/ABase.h"
-
-namespace android {
-// ----------------------------------------------------------------------------
-
-class IGraphicBufferAlloc;
-class String8;
-class GraphicBuffer;
-
-// ASSUMPTIONS
-// 1. SurfaceMediaSource is initialized with width*height which
-// can never change.  However, deqeueue buffer does not currently
-// enforce this as in BufferQueue, dequeue can be used by Surface
-// which can modify the default width and heght.  Also neither the width
-// nor height can be 0.
-// 2. setSynchronousMode is never used (basically no one should call
-// setSynchronousMode(false)
-// 3. setCrop, setTransform, setScalingMode should never be used
-// 4. queueBuffer returns a filled buffer to the SurfaceMediaSource. In addition, a
-// timestamp must be provided for the buffer. The timestamp is in
-// nanoseconds, and must be monotonically increasing. Its other semantics
-// (zero point, etc) are client-dependent and should be documented by the
-// client.
-// 5. Once disconnected, SurfaceMediaSource can be reused (can not
-// connect again)
-// 6. Stop is a hard stop, the last few frames held by the encoder
-// may be dropped.  It is possible to wait for the buffers to be
-// returned (but not implemented)
-
-#define DEBUG_PENDING_BUFFERS   0
-
-class SurfaceMediaSource : public MediaSource,
-                                public MediaBufferObserver,
-                                protected ConsumerListener {
-public:
-    enum { MIN_UNDEQUEUED_BUFFERS = 4};
-
-    struct FrameAvailableListener : public virtual RefBase {
-        // onFrameAvailable() is called from queueBuffer() is the FIFO is
-        // empty. You can use SurfaceMediaSource::getQueuedCount() to
-        // figure out if there are more frames waiting.
-        // This is called without any lock held can be called concurrently by
-        // multiple threads.
-        virtual void onFrameAvailable() = 0;
-    };
-
-    SurfaceMediaSource(uint32_t bufferWidth, uint32_t bufferHeight);
-
-    virtual ~SurfaceMediaSource();
-
-    // For the MediaSource interface for use by StageFrightRecorder:
-    virtual status_t start(MetaData *params = NULL);
-    virtual status_t stop();
-    virtual status_t read(MediaBuffer **buffer,
-            const ReadOptions *options = NULL);
-    virtual sp<MetaData> getFormat();
-
-    // Get / Set the frame rate used for encoding. Default fps = 30
-    status_t setFrameRate(int32_t fps) ;
-    int32_t getFrameRate( ) const;
-
-    // The call for the StageFrightRecorder to tell us that
-    // it is done using the MediaBuffer data so that its state
-    // can be set to FREE for dequeuing
-    virtual void signalBufferReturned(MediaBuffer* buffer);
-    // end of MediaSource interface
-
-    // getTimestamp retrieves the timestamp associated with the image
-    // set by the most recent call to read()
-    //
-    // The timestamp is in nanoseconds, and is monotonically increasing. Its
-    // other semantics (zero point, etc) are source-dependent and should be
-    // documented by the source.
-    int64_t getTimestamp();
-
-    // setFrameAvailableListener sets the listener object that will be notified
-    // when a new frame becomes available.
-    void setFrameAvailableListener(const sp<FrameAvailableListener>& listener);
-
-    // dump our state in a String
-    void dump(String8& result) const;
-    void dump(String8& result, const char* prefix, char* buffer,
-                                                    size_t SIZE) const;
-
-    // metaDataStoredInVideoBuffers tells the encoder what kind of metadata
-    // is passed through the buffers. Currently, it is set to ANWBuffer
-    MetadataBufferType metaDataStoredInVideoBuffers() const;
-
-    sp<IGraphicBufferProducer> getProducer() const { return mProducer; }
-
-    // To be called before start()
-    status_t setMaxAcquiredBufferCount(size_t count);
-
-    // To be called before start()
-    status_t setUseAbsoluteTimestamps();
-
-protected:
-
-    // Implementation of the BufferQueue::ConsumerListener interface.  These
-    // calls are used to notify the Surface of asynchronous events in the
-    // BufferQueue.
-    virtual void onFrameAvailable(const BufferItem& item);
-
-    // Used as a hook to BufferQueue::disconnect()
-    // This is called by the client side when it is done
-    // TODO: Currently, this also sets mStopped to true which
-    // is needed for unblocking the encoder which might be
-    // waiting to read more frames. So if on the client side,
-    // the same thread supplies the frames and also calls stop
-    // on the encoder, the client has to call disconnect before
-    // it calls stop.
-    // In the case of the camera,
-    // that need not be required since the thread supplying the
-    // frames is separate than the one calling stop.
-    virtual void onBuffersReleased();
-
-    // SurfaceMediaSource can't handle sideband streams, so this is not expected
-    // to ever be called. Does nothing.
-    virtual void onSidebandStreamChanged();
-
-    static bool isExternalFormat(uint32_t format);
-
-private:
-    // A BufferQueue, represented by these interfaces, is the exchange point
-    // between the producer and this consumer
-    sp<IGraphicBufferProducer> mProducer;
-    sp<IGraphicBufferConsumer> mConsumer;
-
-    struct SlotData {
-        sp<GraphicBuffer> mGraphicBuffer;
-        uint64_t mFrameNumber;
-    };
-
-    // mSlots caches GraphicBuffers and frameNumbers from the buffer queue
-    SlotData mSlots[BufferQueue::NUM_BUFFER_SLOTS];
-
-    // The permenent width and height of SMS buffers
-    int mWidth;
-    int mHeight;
-
-    // mCurrentSlot is the buffer slot index of the buffer that is currently
-    // being used by buffer consumer
-    // (e.g. StageFrightRecorder in the case of SurfaceMediaSource or GLTexture
-    // in the case of Surface).
-    // It is initialized to INVALID_BUFFER_SLOT,
-    // indicating that no buffer slot is currently bound to the texture. Note,
-    // however, that a value of INVALID_BUFFER_SLOT does not necessarily mean
-    // that no buffer is bound to the texture. A call to setBufferCount will
-    // reset mCurrentTexture to INVALID_BUFFER_SLOT.
-    int mCurrentSlot;
-
-    // mCurrentBuffers is a list of the graphic buffers that are being used by
-    // buffer consumer (i.e. the video encoder). It's possible that these
-    // buffers are not associated with any buffer slots, so we must track them
-    // separately.  Buffers are added to this list in read, and removed from
-    // this list in signalBufferReturned
-    Vector<sp<GraphicBuffer> > mCurrentBuffers;
-
-    size_t mNumPendingBuffers;
-
-#if DEBUG_PENDING_BUFFERS
-    Vector<MediaBuffer *> mPendingBuffers;
-#endif
-
-    // mCurrentTimestamp is the timestamp for the current texture. It
-    // gets set to mLastQueuedTimestamp each time updateTexImage is called.
-    int64_t mCurrentTimestamp;
-
-    // mFrameAvailableListener is the listener object that will be called when a
-    // new frame becomes available. If it is not NULL it will be called from
-    // queueBuffer.
-    sp<FrameAvailableListener> mFrameAvailableListener;
-
-    // mMutex is the mutex used to prevent concurrent access to the member
-    // variables of SurfaceMediaSource objects. It must be locked whenever the
-    // member variables are accessed.
-    mutable Mutex mMutex;
-
-    ////////////////////////// For MediaSource
-    // Set to a default of 30 fps if not specified by the client side
-    int32_t mFrameRate;
-
-    // mStarted is a flag to check if the recording is going on
-    bool mStarted;
-
-    // mNumFramesReceived indicates the number of frames recieved from
-    // the client side
-    int mNumFramesReceived;
-    // mNumFramesEncoded indicates the number of frames passed on to the
-    // encoder
-    int mNumFramesEncoded;
-
-    // mFirstFrameTimestamp is the timestamp of the first received frame.
-    // It is used to offset the output timestamps so recording starts at time 0.
-    int64_t mFirstFrameTimestamp;
-    // mStartTimeNs is the start time passed into the source at start, used to
-    // offset timestamps.
-    int64_t mStartTimeNs;
-
-    size_t mMaxAcquiredBufferCount;
-
-    bool mUseAbsoluteTimestamps;
-
-    // mFrameAvailableCondition condition used to indicate whether there
-    // is a frame available for dequeuing
-    Condition mFrameAvailableCondition;
-
-    Condition mMediaBuffersAvailableCondition;
-
-    // Allocate and return a new MediaBuffer and pass the ANW buffer as metadata into it.
-    void passMetadataBuffer_l(MediaBuffer **buffer, ANativeWindowBuffer *bufferHandle) const;
-
-    // Avoid copying and equating and default constructor
-    DISALLOW_EVIL_CONSTRUCTORS(SurfaceMediaSource);
-};
-
-// ----------------------------------------------------------------------------
-}; // namespace android
-
-#endif // ANDROID_GUI_SURFACEMEDIASOURCE_H
diff --git a/include/media/stagefright/SurfaceUtils.h b/include/media/stagefright/SurfaceUtils.h
deleted file mode 100644
index 13d580c..0000000
--- a/include/media/stagefright/SurfaceUtils.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SURFACE_UTILS_H_
-
-#define SURFACE_UTILS_H_
-
-#include <utils/Errors.h>
-
-struct ANativeWindow;
-
-namespace android {
-
-/**
- * Configures |nativeWindow| for given |width|x|height|, pixel |format|, |rotation| and |usage|.
- * If |reconnect| is true, reconnects to the native window before hand.
- * @return first error encountered, or NO_ERROR on success.
- */
-status_t setNativeWindowSizeFormatAndUsage(
-        ANativeWindow *nativeWindow /* nonnull */,
-        int width, int height, int format, int rotation, int usage, bool reconnect);
-status_t pushBlankBuffersToNativeWindow(ANativeWindow *nativeWindow /* nonnull */);
-
-} // namespace android
-
-#endif  // SURFACE_UTILS_H_
diff --git a/include/media/stagefright/Utils.h b/include/media/stagefright/Utils.h
deleted file mode 100644
index 01b3e3f..0000000
--- a/include/media/stagefright/Utils.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef UTILS_H_
-
-#define UTILS_H_
-
-#include <media/stagefright/foundation/AString.h>
-#include <stdint.h>
-#include <utils/Errors.h>
-#include <utils/RefBase.h>
-#include <system/audio.h>
-#include <media/MediaPlayerInterface.h>
-
-namespace android {
-
-#define FOURCC(c1, c2, c3, c4) \
-    (c1 << 24 | c2 << 16 | c3 << 8 | c4)
-
-uint16_t U16_AT(const uint8_t *ptr);
-uint32_t U32_AT(const uint8_t *ptr);
-uint64_t U64_AT(const uint8_t *ptr);
-
-uint16_t U16LE_AT(const uint8_t *ptr);
-uint32_t U32LE_AT(const uint8_t *ptr);
-uint64_t U64LE_AT(const uint8_t *ptr);
-
-uint64_t ntoh64(uint64_t x);
-uint64_t hton64(uint64_t x);
-
-class MetaData;
-struct AMessage;
-status_t convertMetaDataToMessage(
-        const sp<MetaData> &meta, sp<AMessage> *format);
-void convertMessageToMetaData(
-        const sp<AMessage> &format, sp<MetaData> &meta);
-
-// Returns a pointer to the next NAL start code in buffer of size |length| starting at |data|, or
-// a pointer to the end of the buffer if the start code is not found.
-// TODO: combine this with avc_utils::getNextNALUnit
-const uint8_t *findNextNalStartCode(const uint8_t *data, size_t length);
-
-AString MakeUserAgent();
-
-// Convert a MIME type to a AudioSystem::audio_format
-status_t mapMimeToAudioFormat(audio_format_t& format, const char* mime);
-
-// Convert a aac profile to a AudioSystem::audio_format
-void mapAACProfileToAudioFormat(audio_format_t& format, uint64_t eAacProfile);
-
-// Send information from MetaData to the HAL via AudioSink
-status_t sendMetaDataToHal(sp<MediaPlayerBase::AudioSink>& sink, const sp<MetaData>& meta);
-
-// Check whether the stream defined by meta can be offloaded to hardware
-bool canOffloadStream(const sp<MetaData>& meta, bool hasVideo,
-                      bool isStreaming, audio_stream_type_t streamType);
-
-AString uriDebugString(const AString &uri, bool incognito = false);
-
-struct HLSTime {
-    int32_t mSeq;
-    int64_t mTimeUs;
-    sp<AMessage> mMeta;
-
-    HLSTime(const sp<AMessage> &meta = NULL);
-    int64_t getSegmentTimeUs() const;
-};
-
-bool operator <(const HLSTime &t0, const HLSTime &t1);
-
-// read and write various object to/from AMessage
-
-void writeToAMessage(sp<AMessage> msg, const AudioPlaybackRate &rate);
-void readFromAMessage(const sp<AMessage> &msg, AudioPlaybackRate *rate /* nonnull */);
-
-void writeToAMessage(sp<AMessage> msg, const AVSyncSettings &sync, float videoFpsHint);
-void readFromAMessage(
-        const sp<AMessage> &msg, AVSyncSettings *sync /* nonnull */, float *videoFps /* nonnull */);
-
-AString nameForFd(int fd);
-
-}  // namespace android
-
-#endif  // UTILS_H_
diff --git a/include/media/stagefright/foundation/ABase.h b/include/media/stagefright/foundation/ABase.h
deleted file mode 100644
index ef1e010..0000000
--- a/include/media/stagefright/foundation/ABase.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef A_BASE_H_
-
-#define A_BASE_H_
-
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
-#endif
-
-#define DISALLOW_EVIL_CONSTRUCTORS(name) \
-    name(const name &); \
-    name &operator=(const name &)
-
-/* Returns true if the size parameter is safe for new array allocation (32-bit)
- *
- * Example usage:
- *
- * if (!isSafeArraySize<uint32_t>(arraySize)) {
- *     return BAD_VALUE;
- * }
- * ...
- * uint32_t *myArray = new uint32_t[arraySize];
- *
- * There is a bug in gcc versions earlier than 4.8 where the new[] array allocation
- * will overflow in the internal 32 bit heap allocation, resulting in an
- * underallocated array. This is a security issue that allows potential overwriting
- * of other heap data.
- *
- * An alternative to checking is to create a safe new array template function which
- * either throws a std::bad_alloc exception or returns NULL/nullptr_t; NULL considered
- * safe since normal access of NULL throws an exception.
- *
- * https://securityblog.redhat.com/2012/10/31/array-allocation-in-cxx/
- */
-template <typename T, typename S>
-bool isSafeArraySize(S size) {
-    return size >= 0                            // in case S is signed, ignored if not.
-            && size <= 0xffffffff / sizeof(T);  // max-unsigned-32-bit-int / element-size.
-}
-
-#endif  // A_BASE_H_
diff --git a/include/media/stagefright/foundation/ABuffer.h b/include/media/stagefright/foundation/ABuffer.h
deleted file mode 100644
index dc9c778..0000000
--- a/include/media/stagefright/foundation/ABuffer.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef A_BUFFER_H_
-
-#define A_BUFFER_H_
-
-#include <sys/types.h>
-#include <stdint.h>
-
-#include <media/stagefright/foundation/ABase.h>
-#include <utils/RefBase.h>
-
-namespace android {
-
-struct AMessage;
-class MediaBufferBase;
-
-struct ABuffer : public RefBase {
-    ABuffer(size_t capacity);
-    ABuffer(void *data, size_t capacity);
-
-    uint8_t *base() { return (uint8_t *)mData; }
-    uint8_t *data() { return (uint8_t *)mData + mRangeOffset; }
-    size_t capacity() const { return mCapacity; }
-    size_t size() const { return mRangeLength; }
-    size_t offset() const { return mRangeOffset; }
-
-    void setRange(size_t offset, size_t size);
-
-    // create buffer from dup of some memory block
-    static sp<ABuffer> CreateAsCopy(const void *data, size_t capacity);
-
-    void setInt32Data(int32_t data) { mInt32Data = data; }
-    int32_t int32Data() const { return mInt32Data; }
-
-    sp<AMessage> meta();
-
-    MediaBufferBase *getMediaBufferBase();
-    void setMediaBufferBase(MediaBufferBase *mediaBuffer);
-
-protected:
-    virtual ~ABuffer();
-
-private:
-    sp<AMessage> mMeta;
-
-    MediaBufferBase *mMediaBufferBase;
-
-    void *mData;
-    size_t mCapacity;
-    size_t mRangeOffset;
-    size_t mRangeLength;
-
-    int32_t mInt32Data;
-
-    bool mOwnsData;
-
-    DISALLOW_EVIL_CONSTRUCTORS(ABuffer);
-};
-
-}  // namespace android
-
-#endif  // A_BUFFER_H_
diff --git a/include/media/stagefright/foundation/ADebug.h b/include/media/stagefright/foundation/ADebug.h
deleted file mode 100644
index 564b3f7..0000000
--- a/include/media/stagefright/foundation/ADebug.h
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef A_DEBUG_H_
-
-#define A_DEBUG_H_
-
-#include <string.h>
-
-#include <media/stagefright/foundation/ABase.h>
-#include <media/stagefright/foundation/AString.h>
-#include <utils/Log.h>
-
-namespace android {
-
-inline static const char *asString(status_t i, const char *def = "??") {
-    switch (i) {
-        case NO_ERROR:              return "NO_ERROR";
-        case UNKNOWN_ERROR:         return "UNKNOWN_ERROR";
-        case NO_MEMORY:             return "NO_MEMORY";
-        case INVALID_OPERATION:     return "INVALID_OPERATION";
-        case BAD_VALUE:             return "BAD_VALUE";
-        case BAD_TYPE:              return "BAD_TYPE";
-        case NAME_NOT_FOUND:        return "NAME_NOT_FOUND";
-        case PERMISSION_DENIED:     return "PERMISSION_DENIED";
-        case NO_INIT:               return "NO_INIT";
-        case ALREADY_EXISTS:        return "ALREADY_EXISTS";
-        case DEAD_OBJECT:           return "DEAD_OBJECT";
-        case FAILED_TRANSACTION:    return "FAILED_TRANSACTION";
-        case BAD_INDEX:             return "BAD_INDEX";
-        case NOT_ENOUGH_DATA:       return "NOT_ENOUGH_DATA";
-        case WOULD_BLOCK:           return "WOULD_BLOCK";
-        case TIMED_OUT:             return "TIMED_OUT";
-        case UNKNOWN_TRANSACTION:   return "UNKNOWN_TRANSACTION";
-        case FDS_NOT_ALLOWED:       return "FDS_NOT_ALLOWED";
-        default:                    return def;
-    }
-}
-
-#define LITERAL_TO_STRING_INTERNAL(x)    #x
-#define LITERAL_TO_STRING(x) LITERAL_TO_STRING_INTERNAL(x)
-
-#define CHECK(condition)                                \
-    LOG_ALWAYS_FATAL_IF(                                \
-            !(condition),                               \
-            "%s",                                       \
-            __FILE__ ":" LITERAL_TO_STRING(__LINE__)    \
-            " CHECK(" #condition ") failed.")
-
-#define MAKE_COMPARATOR(suffix,op)                          \
-    template<class A, class B>                              \
-    AString Compare_##suffix(const A &a, const B &b) {      \
-        AString res;                                        \
-        if (!(a op b)) {                                    \
-            res.append(a);                                  \
-            res.append(" vs. ");                            \
-            res.append(b);                                  \
-        }                                                   \
-        return res;                                         \
-    }
-
-MAKE_COMPARATOR(EQ,==)
-MAKE_COMPARATOR(NE,!=)
-MAKE_COMPARATOR(LE,<=)
-MAKE_COMPARATOR(GE,>=)
-MAKE_COMPARATOR(LT,<)
-MAKE_COMPARATOR(GT,>)
-
-#define CHECK_OP(x,y,suffix,op)                                         \
-    do {                                                                \
-        AString ___res = Compare_##suffix(x, y);                        \
-        if (!___res.empty()) {                                          \
-            AString ___full =                                           \
-                __FILE__ ":" LITERAL_TO_STRING(__LINE__)                \
-                    " CHECK_" #suffix "( " #x "," #y ") failed: ";      \
-            ___full.append(___res);                                     \
-                                                                        \
-            LOG_ALWAYS_FATAL("%s", ___full.c_str());                    \
-        }                                                               \
-    } while (false)
-
-#define CHECK_EQ(x,y)   CHECK_OP(x,y,EQ,==)
-#define CHECK_NE(x,y)   CHECK_OP(x,y,NE,!=)
-#define CHECK_LE(x,y)   CHECK_OP(x,y,LE,<=)
-#define CHECK_LT(x,y)   CHECK_OP(x,y,LT,<)
-#define CHECK_GE(x,y)   CHECK_OP(x,y,GE,>=)
-#define CHECK_GT(x,y)   CHECK_OP(x,y,GT,>)
-
-#define TRESPASS() \
-        LOG_ALWAYS_FATAL(                                       \
-            __FILE__ ":" LITERAL_TO_STRING(__LINE__)            \
-                " Should not be here.");
-
-struct ADebug {
-    enum Level {
-        kDebugNone,             // no debug
-        kDebugLifeCycle,        // lifecycle events: creation/deletion
-        kDebugState,            // commands and events
-        kDebugConfig,           // configuration
-        kDebugInternalState,    // internal state changes
-        kDebugAll,              // all
-        kDebugMax = kDebugAll,
-
-    };
-
-    // parse the property or string to get a long-type level for a component name
-    // string format is:
-    // <level>[:<glob>][,<level>[:<glob>]...]
-    // - <level> is 0-5 corresponding to ADebug::Level
-    // - <glob> is used to match component name case insensitively, if omitted, it
-    //   matches all components
-    // - string is read left-to-right, and the last matching level is returned, or
-    //   the def if no terms matched
-    static long GetLevelFromSettingsString(
-            const char *name, const char *value, long def);
-    static long GetLevelFromProperty(
-            const char *name, const char *value, long def);
-
-    // same for ADebug::Level - performs clamping to valid debug ranges
-    static Level GetDebugLevelFromProperty(
-            const char *name, const char *propertyName, Level def = kDebugNone);
-
-    // remove redundant segments of a codec name, and return a newly allocated
-    // string suitable for debugging
-    static char *GetDebugName(const char *name);
-
-    inline static bool isExperimentEnabled(
-            const char *name __unused /* nonnull */, bool allow __unused = true) {
-#ifdef ENABLE_STAGEFRIGHT_EXPERIMENTS
-        if (!strcmp(name, "legacy-adaptive")) {
-            return getExperimentFlag(allow, name, 2, 1); // every other day
-        } else if (!strcmp(name, "legacy-setsurface")) {
-            return getExperimentFlag(allow, name, 3, 1); // every third day
-        } else {
-            ALOGE("unknown experiment '%s' (disabled)", name);
-        }
-#endif
-        return false;
-    }
-
-private:
-    // pass in allow, so we can print in the log if the experiment is disabled
-    static bool getExperimentFlag(
-            bool allow, const char *name, uint64_t modulo, uint64_t limit,
-            uint64_t plus = 0, uint64_t timeDivisor = 24 * 60 * 60 /* 1 day */);
-};
-
-}  // namespace android
-
-#endif  // A_DEBUG_H_
-
diff --git a/include/media/stagefright/foundation/AHandler.h b/include/media/stagefright/foundation/AHandler.h
deleted file mode 100644
index fe02a86..0000000
--- a/include/media/stagefright/foundation/AHandler.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef A_HANDLER_H_
-
-#define A_HANDLER_H_
-
-#include <media/stagefright/foundation/ALooper.h>
-#include <utils/KeyedVector.h>
-#include <utils/RefBase.h>
-
-namespace android {
-
-struct AMessage;
-
-struct AHandler : public RefBase {
-    AHandler()
-        : mID(0),
-          mVerboseStats(false),
-          mMessageCounter(0) {
-    }
-
-    ALooper::handler_id id() const {
-        return mID;
-    }
-
-    sp<ALooper> looper() const {
-        return mLooper.promote();
-    }
-
-    wp<ALooper> getLooper() const {
-        return mLooper;
-    }
-
-    wp<AHandler> getHandler() const {
-        // allow getting a weak reference to a const handler
-        return const_cast<AHandler *>(this);
-    }
-
-protected:
-    virtual void onMessageReceived(const sp<AMessage> &msg) = 0;
-
-private:
-    friend struct AMessage;      // deliverMessage()
-    friend struct ALooperRoster; // setID()
-
-    ALooper::handler_id mID;
-    wp<ALooper> mLooper;
-
-    inline void setID(ALooper::handler_id id, wp<ALooper> looper) {
-        mID = id;
-        mLooper = looper;
-    }
-
-    bool mVerboseStats;
-    uint32_t mMessageCounter;
-    KeyedVector<uint32_t, uint32_t> mMessages;
-
-    void deliverMessage(const sp<AMessage> &msg);
-
-    DISALLOW_EVIL_CONSTRUCTORS(AHandler);
-};
-
-}  // namespace android
-
-#endif  // A_HANDLER_H_
diff --git a/include/media/stagefright/foundation/ALooperRoster.h b/include/media/stagefright/foundation/ALooperRoster.h
deleted file mode 100644
index 9912455..0000000
--- a/include/media/stagefright/foundation/ALooperRoster.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef A_LOOPER_ROSTER_H_
-
-#define A_LOOPER_ROSTER_H_
-
-#include <media/stagefright/foundation/ALooper.h>
-#include <utils/KeyedVector.h>
-#include <utils/String16.h>
-
-namespace android {
-
-struct ALooperRoster {
-    ALooperRoster();
-
-    ALooper::handler_id registerHandler(
-            const sp<ALooper> looper, const sp<AHandler> &handler);
-
-    void unregisterHandler(ALooper::handler_id handlerID);
-    void unregisterStaleHandlers();
-
-    void dump(int fd, const Vector<String16>& args);
-
-private:
-    struct HandlerInfo {
-        wp<ALooper> mLooper;
-        wp<AHandler> mHandler;
-    };
-
-    Mutex mLock;
-    KeyedVector<ALooper::handler_id, HandlerInfo> mHandlers;
-    ALooper::handler_id mNextHandlerID;
-
-    DISALLOW_EVIL_CONSTRUCTORS(ALooperRoster);
-};
-
-}  // namespace android
-
-#endif  // A_LOOPER_ROSTER_H_
diff --git a/include/media/stagefright/foundation/AMessage.h b/include/media/stagefright/foundation/AMessage.h
deleted file mode 100644
index 4b2b868..0000000
--- a/include/media/stagefright/foundation/AMessage.h
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef A_MESSAGE_H_
-
-#define A_MESSAGE_H_
-
-#include <media/stagefright/foundation/ABase.h>
-#include <media/stagefright/foundation/ALooper.h>
-#include <utils/KeyedVector.h>
-#include <utils/RefBase.h>
-
-namespace android {
-
-struct ABuffer;
-struct AHandler;
-struct AString;
-class Parcel;
-
-struct AReplyToken : public RefBase {
-    AReplyToken(const sp<ALooper> &looper)
-        : mLooper(looper),
-          mReplied(false) {
-    }
-
-private:
-    friend struct AMessage;
-    friend struct ALooper;
-    wp<ALooper> mLooper;
-    sp<AMessage> mReply;
-    bool mReplied;
-
-    sp<ALooper> getLooper() const {
-        return mLooper.promote();
-    }
-    // if reply is not set, returns false; otherwise, it retrieves the reply and returns true
-    bool retrieveReply(sp<AMessage> *reply) {
-        if (mReplied) {
-            *reply = mReply;
-            mReply.clear();
-        }
-        return mReplied;
-    }
-    // sets the reply for this token. returns OK or error
-    status_t setReply(const sp<AMessage> &reply);
-};
-
-struct AMessage : public RefBase {
-    AMessage();
-    AMessage(uint32_t what, const sp<const AHandler> &handler);
-
-    // Construct an AMessage from a parcel.
-    // nestingAllowed determines how many levels AMessage can be nested inside
-    // AMessage. The default value here is arbitrarily set to 255.
-    // FromParcel() returns NULL on error, which occurs when the input parcel
-    // contains
-    // - an AMessage nested deeper than maxNestingLevel; or
-    // - an item whose type is not recognized by this function.
-    // Types currently recognized by this function are:
-    //   Item types      set/find function suffixes
-    //   ==========================================
-    //     int32_t                Int32
-    //     int64_t                Int64
-    //     size_t                 Size
-    //     float                  Float
-    //     double                 Double
-    //     AString                String
-    //     AMessage               Message
-    static sp<AMessage> FromParcel(const Parcel &parcel,
-                                   size_t maxNestingLevel = 255);
-
-    // Write this AMessage to a parcel.
-    // All items in the AMessage must have types that are recognized by
-    // FromParcel(); otherwise, TRESPASS error will occur.
-    void writeToParcel(Parcel *parcel) const;
-
-    void setWhat(uint32_t what);
-    uint32_t what() const;
-
-    void setTarget(const sp<const AHandler> &handler);
-
-    void clear();
-
-    void setInt32(const char *name, int32_t value);
-    void setInt64(const char *name, int64_t value);
-    void setSize(const char *name, size_t value);
-    void setFloat(const char *name, float value);
-    void setDouble(const char *name, double value);
-    void setPointer(const char *name, void *value);
-    void setString(const char *name, const char *s, ssize_t len = -1);
-    void setString(const char *name, const AString &s);
-    void setObject(const char *name, const sp<RefBase> &obj);
-    void setBuffer(const char *name, const sp<ABuffer> &buffer);
-    void setMessage(const char *name, const sp<AMessage> &obj);
-
-    void setRect(
-            const char *name,
-            int32_t left, int32_t top, int32_t right, int32_t bottom);
-
-    bool contains(const char *name) const;
-
-    bool findInt32(const char *name, int32_t *value) const;
-    bool findInt64(const char *name, int64_t *value) const;
-    bool findSize(const char *name, size_t *value) const;
-    bool findFloat(const char *name, float *value) const;
-    bool findDouble(const char *name, double *value) const;
-    bool findPointer(const char *name, void **value) const;
-    bool findString(const char *name, AString *value) const;
-    bool findObject(const char *name, sp<RefBase> *obj) const;
-    bool findBuffer(const char *name, sp<ABuffer> *buffer) const;
-    bool findMessage(const char *name, sp<AMessage> *obj) const;
-
-    // finds any numeric type cast to a float
-    bool findAsFloat(const char *name, float *value) const;
-
-    bool findRect(
-            const char *name,
-            int32_t *left, int32_t *top, int32_t *right, int32_t *bottom) const;
-
-    status_t post(int64_t delayUs = 0);
-
-    // Posts the message to its target and waits for a response (or error)
-    // before returning.
-    status_t postAndAwaitResponse(sp<AMessage> *response);
-
-    // If this returns true, the sender of this message is synchronously
-    // awaiting a response and the reply token is consumed from the message
-    // and stored into replyID. The reply token must be used to send the response
-    // using "postReply" below.
-    bool senderAwaitsResponse(sp<AReplyToken> *replyID);
-
-    // Posts the message as a response to a reply token.  A reply token can
-    // only be used once. Returns OK if the response could be posted; otherwise,
-    // an error.
-    status_t postReply(const sp<AReplyToken> &replyID);
-
-    // Performs a deep-copy of "this", contained messages are in turn "dup'ed".
-    // Warning: RefBase items, i.e. "objects" are _not_ copied but only have
-    // their refcount incremented.
-    sp<AMessage> dup() const;
-
-    // Performs a shallow or deep comparison of |this| and |other| and returns
-    // an AMessage with the differences.
-    // Warning: RefBase items, i.e. "objects" are _not_ copied but only have
-    // their refcount incremented.
-    // This is true for AMessages that have no corresponding AMessage equivalent in |other|.
-    // (E.g. there is no such key or the type is different.) On the other hand, changes in
-    // the AMessage (or AMessages if deep is |false|) are returned in new objects.
-    sp<AMessage> changesFrom(const sp<const AMessage> &other, bool deep = false) const;
-
-    AString debugString(int32_t indent = 0) const;
-
-    enum Type {
-        kTypeInt32,
-        kTypeInt64,
-        kTypeSize,
-        kTypeFloat,
-        kTypeDouble,
-        kTypePointer,
-        kTypeString,
-        kTypeObject,
-        kTypeMessage,
-        kTypeRect,
-        kTypeBuffer,
-    };
-
-    size_t countEntries() const;
-    const char *getEntryNameAt(size_t index, Type *type) const;
-
-protected:
-    virtual ~AMessage();
-
-private:
-    friend struct ALooper; // deliver()
-
-    uint32_t mWhat;
-
-    // used only for debugging
-    ALooper::handler_id mTarget;
-
-    wp<AHandler> mHandler;
-    wp<ALooper> mLooper;
-
-    struct Rect {
-        int32_t mLeft, mTop, mRight, mBottom;
-    };
-
-    struct Item {
-        union {
-            int32_t int32Value;
-            int64_t int64Value;
-            size_t sizeValue;
-            float floatValue;
-            double doubleValue;
-            void *ptrValue;
-            RefBase *refValue;
-            AString *stringValue;
-            Rect rectValue;
-        } u;
-        const char *mName;
-        size_t      mNameLength;
-        Type mType;
-        void setName(const char *name, size_t len);
-    };
-
-    enum {
-        kMaxNumItems = 64
-    };
-    Item mItems[kMaxNumItems];
-    size_t mNumItems;
-
-    Item *allocateItem(const char *name);
-    void freeItemValue(Item *item);
-    const Item *findItem(const char *name, Type type) const;
-
-    void setObjectInternal(
-            const char *name, const sp<RefBase> &obj, Type type);
-
-    size_t findItemIndex(const char *name, size_t len) const;
-
-    void deliver();
-
-    DISALLOW_EVIL_CONSTRUCTORS(AMessage);
-};
-
-}  // namespace android
-
-#endif  // A_MESSAGE_H_
diff --git a/include/media/stagefright/foundation/AString.h b/include/media/stagefright/foundation/AString.h
deleted file mode 100644
index 2f6d532..0000000
--- a/include/media/stagefright/foundation/AString.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef A_STRING_H_
-
-#define A_STRING_H_
-
-#include <utils/Errors.h>
-#include <sys/types.h>
-
-namespace android {
-
-class String8;
-class Parcel;
-
-struct AString {
-    AString();
-    AString(const char *s);
-    AString(const char *s, size_t size);
-    AString(const String8 &from);
-    AString(const AString &from);
-    AString(const AString &from, size_t offset, size_t n);
-    ~AString();
-
-    AString &operator=(const AString &from);
-    void setTo(const char *s);
-    void setTo(const char *s, size_t size);
-    void setTo(const AString &from, size_t offset, size_t n);
-
-    size_t size() const;
-    const char *c_str() const;
-
-    bool empty() const;
-
-    void clear();
-    void trim();
-    void erase(size_t start, size_t n);
-
-    void append(char c) { append(&c, 1); }
-    void append(const char *s);
-    void append(const char *s, size_t size);
-    void append(const AString &from);
-    void append(const AString &from, size_t offset, size_t n);
-    void append(int x);
-    void append(unsigned x);
-    void append(long x);
-    void append(unsigned long x);
-    void append(long long x);
-    void append(unsigned long long x);
-    void append(float x);
-    void append(double x);
-    void append(void *x);
-
-    void insert(const AString &from, size_t insertionPos);
-    void insert(const char *from, size_t size, size_t insertionPos);
-
-    ssize_t find(const char *substring, size_t start = 0) const;
-
-    size_t hash() const;
-
-    bool operator==(const AString &other) const;
-    bool operator!=(const AString &other) const {
-        return !operator==(other);
-    }
-    bool operator<(const AString &other) const;
-    bool operator>(const AString &other) const;
-
-    int compare(const AString &other) const;
-    int compareIgnoreCase(const AString &other) const;
-
-    bool equalsIgnoreCase(const AString &other) const;
-    bool startsWith(const char *prefix) const;
-    bool endsWith(const char *suffix) const;
-    bool startsWithIgnoreCase(const char *prefix) const;
-    bool endsWithIgnoreCase(const char *suffix) const;
-
-    void tolower();
-
-    static AString FromParcel(const Parcel &parcel);
-    status_t writeToParcel(Parcel *parcel) const;
-
-private:
-    static const char *kEmptyString;
-
-    char *mData;
-    size_t mSize;
-    size_t mAllocSize;
-
-    void makeMutable();
-};
-
-AString AStringPrintf(const char *format, ...);
-
-}  // namespace android
-
-#endif  // A_STRING_H_
-
diff --git a/include/media/stagefright/foundation/AWakeLock.h b/include/media/stagefright/foundation/AWakeLock.h
deleted file mode 100644
index 57716c1..0000000
--- a/include/media/stagefright/foundation/AWakeLock.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef A_WAKELOCK_H_
-#define A_WAKELOCK_H_
-
-#include <media/stagefright/foundation/ABase.h>
-#include <powermanager/IPowerManager.h>
-#include <utils/RefBase.h>
-
-namespace android {
-
-class AWakeLock : public RefBase {
-
-public:
-    AWakeLock();
-
-    // NOTE: acquire and release are not thread safe
-
-    // returns true if wakelock was acquired
-    bool acquire();
-    void release(bool force = false);
-
-    virtual ~AWakeLock();
-
-private:
-    sp<IPowerManager> mPowerManager;
-    sp<IBinder>       mWakeLockToken;
-    uint32_t          mWakeLockCount;
-
-    class PMDeathRecipient : public IBinder::DeathRecipient {
-    public:
-        PMDeathRecipient(AWakeLock *wakeLock) : mWakeLock(wakeLock) {}
-        virtual ~PMDeathRecipient() {}
-
-        // IBinder::DeathRecipient
-        virtual void binderDied(const wp<IBinder> &who);
-
-    private:
-        PMDeathRecipient(const PMDeathRecipient&);
-        PMDeathRecipient& operator= (const PMDeathRecipient&);
-
-        AWakeLock *mWakeLock;
-    };
-
-    const sp<PMDeathRecipient> mDeathRecipient;
-
-    void clearPowerManager();
-
-    DISALLOW_EVIL_CONSTRUCTORS(AWakeLock);
-};
-
-}  // namespace android
-
-#endif  // A_WAKELOCK_H_
diff --git a/include/media/stagefright/foundation/ColorUtils.h b/include/media/stagefright/foundation/ColorUtils.h
deleted file mode 100644
index 2368b82..0000000
--- a/include/media/stagefright/foundation/ColorUtils.h
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef COLOR_UTILS_H_
-
-#define COLOR_UTILS_H_
-
-#include <stdint.h>
-
-#define STRINGIFY_ENUMS
-
-#include <media/stagefright/foundation/AMessage.h>
-
-#include <media/hardware/VideoAPI.h>
-#include <system/graphics.h>
-
-namespace android {
-
-struct ColorUtils {
-    /*
-     * Media-platform color constants. MediaCodec uses (an extended version of) platform-defined
-     * constants that are derived from HAL_DATASPACE, since these are directly exposed to the user.
-     * We extend the values to maintain the richer set of information defined inside media
-     * containers and bitstreams that are not supported by the platform. We also expect vendors
-     * to extend some of these values with vendor-specific values. These are separated into a
-     * vendor-extension section so they won't collide with future platform values.
-     */
-
-#define GET_HAL_ENUM(class, name) HAL_DATASPACE_##class##name
-#define GET_HAL_BITFIELD(class, name) (GET_HAL_ENUM(class, _##name) >> GET_HAL_ENUM(class, _SHIFT))
-
-    enum ColorStandard : uint32_t {
-        kColorStandardUnspecified =          GET_HAL_BITFIELD(STANDARD, UNSPECIFIED),
-        kColorStandardBT709 =                GET_HAL_BITFIELD(STANDARD, BT709),
-        kColorStandardBT601_625 =            GET_HAL_BITFIELD(STANDARD, BT601_625),
-        kColorStandardBT601_625_Unadjusted = GET_HAL_BITFIELD(STANDARD, BT601_625_UNADJUSTED),
-        kColorStandardBT601_525 =            GET_HAL_BITFIELD(STANDARD, BT601_525),
-        kColorStandardBT601_525_Unadjusted = GET_HAL_BITFIELD(STANDARD, BT601_525_UNADJUSTED),
-        kColorStandardBT2020 =               GET_HAL_BITFIELD(STANDARD, BT2020),
-        kColorStandardBT2020Constant =       GET_HAL_BITFIELD(STANDARD, BT2020_CONSTANT_LUMINANCE),
-        kColorStandardBT470M =               GET_HAL_BITFIELD(STANDARD, BT470M),
-        kColorStandardFilm =                 GET_HAL_BITFIELD(STANDARD, FILM),
-        kColorStandardMax =                  GET_HAL_BITFIELD(STANDARD, MASK),
-
-        /* This marks a section of color-standard values that are not supported by graphics HAL,
-           but track defined color primaries-matrix coefficient combinations in media.
-           These are stable for a given release. */
-        kColorStandardExtendedStart = kColorStandardMax + 1,
-
-        /* This marks a section of color-standard values that are not supported by graphics HAL
-           nor using media defined color primaries or matrix coefficients. These may differ per
-           device. */
-        kColorStandardVendorStart = 0x10000,
-    };
-
-    enum ColorTransfer : uint32_t  {
-        kColorTransferUnspecified = GET_HAL_BITFIELD(TRANSFER, UNSPECIFIED),
-        kColorTransferLinear =      GET_HAL_BITFIELD(TRANSFER, LINEAR),
-        kColorTransferSRGB =        GET_HAL_BITFIELD(TRANSFER, SRGB),
-        kColorTransferSMPTE_170M =  GET_HAL_BITFIELD(TRANSFER, SMPTE_170M),
-        kColorTransferGamma22 =     GET_HAL_BITFIELD(TRANSFER, GAMMA2_2),
-        kColorTransferGamma28 =     GET_HAL_BITFIELD(TRANSFER, GAMMA2_8),
-        kColorTransferST2084 =      GET_HAL_BITFIELD(TRANSFER, ST2084),
-        kColorTransferHLG =         GET_HAL_BITFIELD(TRANSFER, HLG),
-        kColorTransferMax =         GET_HAL_BITFIELD(TRANSFER, MASK),
-
-        /* This marks a section of color-transfer values that are not supported by graphics HAL,
-           but track media-defined color-transfer. These are stable for a given release. */
-        kColorTransferExtendedStart = kColorTransferMax + 1,
-
-        /* This marks a section of color-transfer values that are not supported by graphics HAL
-           nor defined by media. These may differ per device. */
-        kColorTransferVendorStart = 0x10000,
-    };
-
-    enum ColorRange : uint32_t  {
-        kColorRangeUnspecified = GET_HAL_BITFIELD(RANGE, UNSPECIFIED),
-        kColorRangeFull =        GET_HAL_BITFIELD(RANGE, FULL),
-        kColorRangeLimited =     GET_HAL_BITFIELD(RANGE, LIMITED),
-        kColorRangeMax =         GET_HAL_BITFIELD(RANGE, MASK),
-
-        /* This marks a section of color-transfer values that are not supported by graphics HAL,
-           but track media-defined color-transfer. These are stable for a given release. */
-        kColorRangeExtendedStart = kColorRangeMax + 1,
-
-        /* This marks a section of color-transfer values that are not supported by graphics HAL
-           nor defined by media. These may differ per device. */
-        kColorRangeVendorStart = 0x10000,
-    };
-
-#undef GET_HAL_BITFIELD
-#undef GET_HAL_ENUM
-
-    /*
-     * Static utilities for codec support
-     */
-
-    // using int32_t for media range/standard/transfers to denote extended ranges
-    // wrap methods change invalid aspects to the Unspecified value
-    static int32_t wrapColorAspectsIntoColorStandard(
-            ColorAspects::Primaries primaries, ColorAspects::MatrixCoeffs coeffs);
-    static int32_t wrapColorAspectsIntoColorRange(ColorAspects::Range range);
-    static int32_t wrapColorAspectsIntoColorTransfer(ColorAspects::Transfer transfer);
-
-    // unwrap methods change invalid aspects to the Other value
-    static status_t unwrapColorAspectsFromColorRange(
-            int32_t range, ColorAspects::Range *aspect);
-    static status_t unwrapColorAspectsFromColorTransfer(
-            int32_t transfer, ColorAspects::Transfer *aspect);
-    static status_t unwrapColorAspectsFromColorStandard(
-            int32_t standard,
-            ColorAspects::Primaries *primaries, ColorAspects::MatrixCoeffs *coeffs);
-
-    static status_t convertPlatformColorAspectsToCodecAspects(
-            int32_t range, int32_t standard, int32_t transfer, ColorAspects &aspects);
-    static status_t convertCodecColorAspectsToPlatformAspects(
-            const ColorAspects &aspects, int32_t *range, int32_t *standard, int32_t *transfer);
-
-    // converts Other values to Unspecified
-    static void convertCodecColorAspectsToIsoAspects(
-            const ColorAspects &aspects,
-            int32_t *primaries, int32_t *transfer, int32_t *coeffs, bool *fullRange);
-    // converts unsupported values to Other
-    static void convertIsoColorAspectsToCodecAspects(
-            int32_t primaries, int32_t transfer, int32_t coeffs, bool fullRange,
-            ColorAspects &aspects);
-
-    // updates Unspecified color aspects to their defaults based on the video size
-    static void setDefaultCodecColorAspectsIfNeeded(
-            ColorAspects &aspects, int32_t width, int32_t height);
-
-    // it returns the closest dataSpace for given color |aspects|. if |mayExpand| is true, it allows
-    // returning a larger dataSpace that contains the color space given by |aspects|, and is better
-    // suited to blending. This requires implicit color space conversion on part of the device.
-    static android_dataspace getDataSpaceForColorAspects(ColorAspects &aspects, bool mayExpand);
-
-    // converts |dataSpace| to a V0 enum, and returns true if dataSpace is an aspect-only value
-    static bool convertDataSpaceToV0(android_dataspace &dataSpace);
-
-    // compares |aspect| to |orig|. Returns |true| if any aspects have changed, except if they
-    // changed to Unspecified value. It also sets the changed values to Unspecified in |aspect|.
-    static bool checkIfAspectsChangedAndUnspecifyThem(
-            ColorAspects &aspects, const ColorAspects &orig, bool usePlatformAspects = false);
-
-    // finds color config in format, defaulting them to 0.
-    static void getColorConfigFromFormat(
-            const sp<AMessage> &format, int *range, int *standard, int *transfer);
-
-    // copies existing color config from |source| to |target|.
-    static void copyColorConfig(const sp<AMessage> &source, sp<AMessage> &target);
-
-    // finds color config in format as ColorAspects, defaulting them to 0.
-    static void getColorAspectsFromFormat(const sp<AMessage> &format, ColorAspects &aspects);
-
-    // writes |aspects| into format. iff |force| is false, Unspecified values are not
-    // written.
-    static void setColorAspectsIntoFormat(
-            const ColorAspects &aspects, sp<AMessage> &format, bool force = false);
-
-    // finds HDR metadata in format as HDRStaticInfo, defaulting them to 0.
-    // Return |true| if could find HDR metadata in format. Otherwise, return |false|.
-    static bool getHDRStaticInfoFromFormat(const sp<AMessage> &format, HDRStaticInfo *info);
-
-    // writes |info| into format.
-    static void setHDRStaticInfoIntoFormat(const HDRStaticInfo &info, sp<AMessage> &format);
-};
-
-inline static const char *asString(android::ColorUtils::ColorStandard i, const char *def = "??") {
-    using namespace android;
-    switch (i) {
-        case ColorUtils::kColorStandardUnspecified:          return "Unspecified";
-        case ColorUtils::kColorStandardBT709:                return "BT709";
-        case ColorUtils::kColorStandardBT601_625:            return "BT601_625";
-        case ColorUtils::kColorStandardBT601_625_Unadjusted: return "BT601_625_Unadjusted";
-        case ColorUtils::kColorStandardBT601_525:            return "BT601_525";
-        case ColorUtils::kColorStandardBT601_525_Unadjusted: return "BT601_525_Unadjusted";
-        case ColorUtils::kColorStandardBT2020:               return "BT2020";
-        case ColorUtils::kColorStandardBT2020Constant:       return "BT2020Constant";
-        case ColorUtils::kColorStandardBT470M:               return "BT470M";
-        case ColorUtils::kColorStandardFilm:                 return "Film";
-        default:                                            return def;
-    }
-}
-
-inline static const char *asString(android::ColorUtils::ColorTransfer i, const char *def = "??") {
-    using namespace android;
-    switch (i) {
-        case ColorUtils::kColorTransferUnspecified: return "Unspecified";
-        case ColorUtils::kColorTransferLinear:      return "Linear";
-        case ColorUtils::kColorTransferSRGB:        return "SRGB";
-        case ColorUtils::kColorTransferSMPTE_170M:  return "SMPTE_170M";
-        case ColorUtils::kColorTransferGamma22:     return "Gamma22";
-        case ColorUtils::kColorTransferGamma28:     return "Gamma28";
-        case ColorUtils::kColorTransferST2084:      return "ST2084";
-        case ColorUtils::kColorTransferHLG:         return "HLG";
-        default:                                   return def;
-    }
-}
-
-inline static const char *asString(android::ColorUtils::ColorRange i, const char *def = "??") {
-    using namespace android;
-    switch (i) {
-        case ColorUtils::kColorRangeUnspecified: return "Unspecified";
-        case ColorUtils::kColorRangeFull:        return "Full";
-        case ColorUtils::kColorRangeLimited:     return "Limited";
-        default:                                return def;
-    }
-}
-
-}  // namespace android
-
-#endif  // COLOR_UTILS_H_
-
diff --git a/include/media/vndk/xmlparser/1.0/MediaCodecsXmlParser.h b/include/media/vndk/xmlparser/1.0/MediaCodecsXmlParser.h
new file mode 100644
index 0000000..b324cd8
--- /dev/null
+++ b/include/media/vndk/xmlparser/1.0/MediaCodecsXmlParser.h
@@ -0,0 +1,135 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CODECS_XML_PARSER_H_
+
+#define MEDIA_CODECS_XML_PARSER_H_
+
+#include <map>
+#include <vector>
+
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/foundation/AString.h>
+
+#include <sys/types.h>
+#include <utils/Errors.h>
+#include <utils/Vector.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+struct AMessage;
+
+// Quirk still supported, even though deprecated
+enum Quirks {
+    kRequiresAllocateBufferOnInputPorts   = 1,
+    kRequiresAllocateBufferOnOutputPorts  = 2,
+
+    kQuirksMask = kRequiresAllocateBufferOnInputPorts
+                | kRequiresAllocateBufferOnOutputPorts,
+};
+
+// Lightweight struct for querying components.
+struct TypeInfo {
+    AString mName;
+    std::map<AString, AString> mStringFeatures;
+    std::map<AString, bool> mBoolFeatures;
+    std::map<AString, AString> mDetails;
+};
+
+struct ProfileLevel {
+    uint32_t mProfile;
+    uint32_t mLevel;
+};
+
+struct CodecInfo {
+    std::vector<TypeInfo> mTypes;
+    std::vector<ProfileLevel> mProfileLevels;
+    std::vector<uint32_t> mColorFormats;
+    uint32_t mFlags;
+    bool mIsEncoder;
+};
+
+class MediaCodecsXmlParser {
+public:
+    MediaCodecsXmlParser();
+    ~MediaCodecsXmlParser();
+
+    void getGlobalSettings(std::map<AString, AString> *settings) const;
+
+    status_t getCodecInfo(const char *name, CodecInfo *info) const;
+
+    status_t getQuirks(const char *name, std::vector<AString> *quirks) const;
+
+private:
+    enum Section {
+        SECTION_TOPLEVEL,
+        SECTION_SETTINGS,
+        SECTION_DECODERS,
+        SECTION_DECODER,
+        SECTION_DECODER_TYPE,
+        SECTION_ENCODERS,
+        SECTION_ENCODER,
+        SECTION_ENCODER_TYPE,
+        SECTION_INCLUDE,
+    };
+
+    status_t mInitCheck;
+    Section mCurrentSection;
+    bool mUpdate;
+    Vector<Section> mPastSections;
+    int32_t mDepth;
+    AString mHrefBase;
+
+    std::map<AString, AString> mGlobalSettings;
+
+    // name -> CodecInfo
+    std::map<AString, CodecInfo> mCodecInfos;
+    std::map<AString, std::vector<AString>> mQuirks;
+    AString mCurrentName;
+    std::vector<TypeInfo>::iterator mCurrentType;
+
+    status_t initCheck() const;
+    void parseTopLevelXMLFile(const char *path, bool ignore_errors = false);
+
+    void parseXMLFile(const char *path);
+
+    static void StartElementHandlerWrapper(
+            void *me, const char *name, const char **attrs);
+
+    static void EndElementHandlerWrapper(void *me, const char *name);
+
+    void startElementHandler(const char *name, const char **attrs);
+    void endElementHandler(const char *name);
+
+    status_t includeXMLFile(const char **attrs);
+    status_t addSettingFromAttributes(const char **attrs);
+    status_t addMediaCodecFromAttributes(bool encoder, const char **attrs);
+    void addMediaCodec(bool encoder, const char *name, const char *type = NULL);
+
+    status_t addQuirk(const char **attrs);
+    status_t addTypeFromAttributes(const char **attrs, bool encoder);
+    status_t addLimit(const char **attrs);
+    status_t addFeature(const char **attrs);
+    void addType(const char *name);
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaCodecsXmlParser);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_CODECS_XML_PARSER_H_
+
diff --git a/include/ndk/NdkImage.h b/include/ndk/NdkImage.h
index cd0b11e..d7443be 100644
--- a/include/ndk/NdkImage.h
+++ b/include/ndk/NdkImage.h
@@ -15,7 +15,7 @@
  */
 
 /**
- * @addtogroup Media Camera
+ * @addtogroup Media
  * @{
  */
 
@@ -36,12 +36,20 @@
 #ifndef _NDK_IMAGE_H
 #define _NDK_IMAGE_H
 
+#include <sys/cdefs.h>
+
 #include "NdkMediaError.h"
 
+#if __ANDROID_API__ >= 26
+#include <android/hardware_buffer.h>
+#endif /* __ANDROID_API__ >= 26 */
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+#if __ANDROID_API__ >= 24
+
 /**
  * AImage is an opaque type that provides access to image generated by {@link AImageReader}.
  */
@@ -50,6 +58,97 @@
 // Formats not listed here will not be supported by AImageReader
 enum AIMAGE_FORMATS {
     /**
+     * 32 bits RGBA format, 8 bits for each of the four channels.
+     *
+     * <p>
+     * Corresponding formats:
+     * <ul>
+     * <li>AHardwareBuffer: AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM</li>
+     * <li>Vulkan: VK_FORMAT_R8G8B8A8_UNORM</li>
+     * <li>OpenGL ES: GL_RGBA8</li>
+     * </ul>
+     * </p>
+     *
+     * @see AImage
+     * @see AImageReader
+     * @see AHardwareBuffer
+     */
+    AIMAGE_FORMAT_RGBA_8888         = 0x1,
+
+    /**
+     * 32 bits RGBX format, 8 bits for each of the four channels.
+     *
+     * <p>
+     * Corresponding formats:
+     * <ul>
+     * <li>AHardwareBuffer: AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM</li>
+     * <li>Vulkan: VK_FORMAT_R8G8B8A8_UNORM</li>
+     * <li>OpenGL ES: GL_RGBA8</li>
+     * </ul>
+     * </p>
+     *
+     * @see AImage
+     * @see AImageReader
+     * @see AHardwareBuffer
+     */
+    AIMAGE_FORMAT_RGBX_8888         = 0x2,
+
+    /**
+     * 24 bits RGB format, 8 bits for each of the three channels.
+     *
+     * <p>
+     * Corresponding formats:
+     * <ul>
+     * <li>AHardwareBuffer: AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM</li>
+     * <li>Vulkan: VK_FORMAT_R8G8B8_UNORM</li>
+     * <li>OpenGL ES: GL_RGB8</li>
+     * </ul>
+     * </p>
+     *
+     * @see AImage
+     * @see AImageReader
+     * @see AHardwareBuffer
+     */
+    AIMAGE_FORMAT_RGB_888           = 0x3,
+
+    /**
+     * 16 bits RGB format, 5 bits for Red channel, 6 bits for Green channel,
+     * and 5 bits for Blue channel.
+     *
+     * <p>
+     * Corresponding formats:
+     * <ul>
+     * <li>AHardwareBuffer: AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM</li>
+     * <li>Vulkan: VK_FORMAT_R5G6B5_UNORM_PACK16</li>
+     * <li>OpenGL ES: GL_RGB565</li>
+     * </ul>
+     * </p>
+     *
+     * @see AImage
+     * @see AImageReader
+     * @see AHardwareBuffer
+     */
+    AIMAGE_FORMAT_RGB_565           = 0x4,
+
+    /**
+     * 64 bits RGBA format, 16 bits for each of the four channels.
+     *
+     * <p>
+     * Corresponding formats:
+     * <ul>
+     * <li>AHardwareBuffer: AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT</li>
+     * <li>Vulkan: VK_FORMAT_R16G16B16A16_SFLOAT</li>
+     * <li>OpenGL ES: GL_RGBA16F</li>
+     * </ul>
+     * </p>
+     *
+     * @see AImage
+     * @see AImageReader
+     * @see AHardwareBuffer
+     */
+    AIMAGE_FORMAT_RGBA_FP16         = 0x16,
+
+    /**
      * Multi-plane Android YUV 420 format.
      *
      * <p>This format is a generic YCbCr format, capable of describing any 4:2:0
@@ -551,7 +650,9 @@
  *         <li>{@link AMEDIA_ERROR_UNSUPPORTED} if pixel stride is undefined for the format of input
  *                 image.</li>
  *         <li>{@link AMEDIA_ERROR_INVALID_OBJECT} if the {@link AImageReader} generated this
- *                 image has been deleted.</li></ul>
+ *                 image has been deleted.</li>
+ *         <li>{@link AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE} if the {@link AImage} cannot be locked
+ *                 for CPU access.</li></ul>
  */
 media_status_t AImage_getPlanePixelStride(
         const AImage* image, int planeIdx, /*out*/int32_t* pixelStride);
@@ -576,7 +677,9 @@
  *         <li>{@link AMEDIA_ERROR_UNSUPPORTED} if row stride is undefined for the format of input
  *                 image.</li>
  *         <li>{@link AMEDIA_ERROR_INVALID_OBJECT} if the {@link AImageReader} generated this
- *                 image has been deleted.</li></ul>
+ *                 image has been deleted.</li>
+ *         <li>{@link AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE} if the {@link AImage} cannot be locked
+ *                 for CPU access.</li></ul>
  */
 media_status_t AImage_getPlaneRowStride(
         const AImage* image, int planeIdx, /*out*/int32_t* rowStride);
@@ -598,12 +701,63 @@
  *         <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if image, data or dataLength is NULL, or
  *                 planeIdx is out of the range of [0, numOfPlanes - 1].</li>
  *         <li>{@link AMEDIA_ERROR_INVALID_OBJECT} if the {@link AImageReader} generated this
- *                 image has been deleted.</li></ul>
+ *                 image has been deleted.</li>
+ *         <li>{@link AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE} if the {@link AImage} cannot be locked
+ *                 for CPU access.</li></ul>
  */
 media_status_t AImage_getPlaneData(
         const AImage* image, int planeIdx,
         /*out*/uint8_t** data, /*out*/int* dataLength);
 
+#endif /* __ANDROID_API__ >= 24 */
+
+#if __ANDROID_API__ >= 26
+
+/*
+ * Return the image back the the system and delete the AImage object from memory asynchronously.
+ *
+ * <p>Similar to {@link AImage_delete}, do NOT use the image pointer after this method returns.
+ * However, the caller can still hold on to the {@link AHardwareBuffer} returned from this image and
+ * signal the release of the hardware buffer back to the {@link AImageReader}'s queue using
+ * releaseFenceFd.</p>
+ *
+ * @param image The {@link AImage} to be deleted.
+ * @param releaseFenceFd A sync fence fd defined in {@link sync.h}, which signals the release of
+ *         underlying {@link AHardwareBuffer}.
+ *
+ * @see sync.h
+ */
+void AImage_deleteAsync(AImage* image, int releaseFenceFd);
+
+/**
+ * Get the hardware buffer handle of the input image intended for GPU and/or hardware access.
+ *
+ * <p>Note that no reference on the returned {@link AHardwareBuffer} handle is acquired
+ * automatically. Once the {@link AImage} or the parent {@link AImageReader} is deleted, the
+ * {@link AHardwareBuffer} handle from previous {@link AImage_getHardwareBuffer} becomes
+ * invalid.</p>
+ *
+ * <p>If the caller ever needs to hold on a reference to the {@link AHardwareBuffer} handle after
+ * the {@link AImage} or the parent {@link AImageReader} is deleted, it must call {@link
+ * AHardwareBuffer_acquire} to acquire an extra reference, and call {@link AHardwareBuffer_release}
+ * once it has finished using it in order to properly deallocate the underlying memory managed by
+ * {@link AHardwareBuffer}. If the caller has acquired extra reference on an {@link AHardwareBuffer}
+ * returned from this function, it must also listen to {@link onBufferFreed} callback to be
+ * notified when the buffer is no longer used by {@link AImageReader}.</p>
+ *
+ * @param image the {@link AImage} of interest.
+ * @param outBuffer The memory area pointed to by buffer will contain the acquired AHardwareBuffer
+ *         handle.
+ * @return <ul>
+ *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
+ *         <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if image or buffer is NULL</li></ul>
+ *
+ * @see AImageReader_ImageCallback
+ */
+media_status_t AImage_getHardwareBuffer(const AImage* image, /*out*/AHardwareBuffer** buffer);
+
+#endif /* __ANDROID_API__ >= 26 */
+
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/include/ndk/NdkImageReader.h b/include/ndk/NdkImageReader.h
index 7c7ec6a..59ae507 100644
--- a/include/ndk/NdkImageReader.h
+++ b/include/ndk/NdkImageReader.h
@@ -15,7 +15,7 @@
  */
 
 /**
- * @addtogroup Media Camera
+ * @addtogroup Media
  * @{
  */
 
@@ -36,6 +36,8 @@
 #ifndef _NDK_IMAGE_READER_H
 #define _NDK_IMAGE_READER_H
 
+#include <sys/cdefs.h>
+
 #include <android/native_window.h>
 #include "NdkMediaError.h"
 #include "NdkImage.h"
@@ -44,6 +46,8 @@
 extern "C" {
 #endif
 
+#if __ANDROID_API__ >= 24
+
 /**
  * AImage is an opaque type that allows direct application access to image data rendered into a
  * {@link ANativeWindow}.
@@ -294,6 +298,145 @@
 media_status_t AImageReader_setImageListener(
         AImageReader* reader, AImageReader_ImageListener* listener);
 
+#endif /* __ANDROID_API__ >= 24 */
+
+#if __ANDROID_API__ >= 26
+
+/**
+ * AImageReader constructor similar to {@link AImageReader_new} that takes an additional parameter
+ * for the consumer usage. All other parameters and the return values are identical to those passed
+ * to {@line AImageReader_new}.
+ *
+ * @param usage specifies how the consumer will access the AImage, using combination of the
+ *            AHARDWAREBUFFER_USAGE flags described in {@link hardware_buffer.h}.
+ *            Passing {@link AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN} is equivalent to calling
+ *            {@link AImageReader_new} with the same parameters.
+ *
+ * Note that not all format and usage flag combination is supported by the {@link AImageReader}.
+ * Below are the combinations supported by the {@link AImageReader}.
+ * <table>
+ * <tr>
+ *   <th>Format</th>
+ *   <th>Compatible usage flags</th>
+ * </tr>
+ * <tr>
+ *   <td>non-{@link AIMAGE_FORMAT_PRIVATE PRIVATE} formats defined in {@link AImage.h}
+ * </td>
+ *   <td>{@link AHARDWAREBUFFER_USAGE_CPU_READ_RARELY} or
+ *   {@link AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN}</td>
+ * </tr>
+ * <tr>
+ *   <td>{@link AIMAGE_FORMAT_RGBA_8888}</td>
+ *   <td>{@link AHARDWAREBUFFER_USAGE_VIDEO_ENCODE} or
+ *   {@link AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE}, or combined</td>
+ * </tr>
+ * </table>
+ *
+ * @see AImage
+ * @see AImageReader_new
+ * @see AHardwareBuffer
+ */
+media_status_t AImageReader_newWithUsage(
+        int32_t width, int32_t height, int32_t format, uint64_t usage, int32_t maxImages,
+        /*out*/ AImageReader** reader);
+
+/*
+ * Acquire the next {@link AImage} from the image reader's queue asynchronously.
+ *
+ * <p>AImageReader acquire method similar to {@link AImageReader_acquireNextImage} that takes an
+ * additional parameter for the sync fence. All other parameters and the return values are
+ * identical to those passed to {@link AImageReader_acquireNextImage}.</p>
+ *
+ * @param acquireFenceFd A sync fence fd defined in {@link sync.h}, which is used to signal when the
+ *         buffer is ready to consume. When synchronization fence is not needed, fence will be set
+ *         to -1 and the {@link AImage} returned is ready for use immediately. Otherwise, user shall
+ *         use syscalls such as {@code poll()}, {@code epoll()}, {@code select()} to wait for the
+ *         fence fd to change status before attempting to access the {@link AImage} returned.
+ *
+ * @see sync.h
+ * @see sync_get_fence_info
+ */
+media_status_t AImageReader_acquireNextImageAsync(
+        AImageReader* reader, /*out*/AImage** image, /*out*/int* acquireFenceFd);
+
+/*
+ * Acquire the latest {@link AImage} from the image reader's queue asynchronously, dropping older
+ * images.
+ *
+ * <p>AImageReader acquire method similar to {@link AImageReader_acquireLatestImage} that takes an
+ * additional parameter for the sync fence. All other parameters and the return values are
+ * identical to those passed to {@link AImageReader_acquireLatestImage}.</p>
+ *
+ * @param acquireFenceFd A sync fence fd defined in {@link sync.h}, which is used to signal when the
+ *         buffer is ready to consume. When synchronization fence is not needed, fence will be set
+ *         to -1 and the {@link AImage} returned is ready for use immediately. Otherwise, user shall
+ *         use syscalls such as {@code poll()}, {@code epoll()}, {@code select()} to wait for the
+ *         fence fd to change status before attempting to access the {@link AImage} returned.
+ *
+ * @see sync.h
+ * @see sync_get_fence_info
+ */
+media_status_t AImageReader_acquireLatestImageAsync(
+        AImageReader* reader, /*out*/AImage** image, /*out*/int* acquireFenceFd);
+/**
+ * The definition of {@link AImageReader} buffer removed callback.
+ *
+ * @param context The optional application context provided by user in
+ *                {@link AImageReader_setBufferRemovedListener}.
+ * @param reader The {@link AImageReader} of interest.
+ * @param buffer The {@link AHardwareBuffer} that is being removed from this image reader.
+ */
+typedef void (*AImageReader_BufferRemovedCallback)(void* context,
+        AImageReader* reader,
+        AHardwareBuffer* buffer);
+
+typedef struct AImageReader_BufferRemovedListener {
+    /// optional application context.
+    void*                      context;
+
+    /**
+     * This callback is called when an old {@link AHardwareBuffer} is about to be removed from the
+     * image reader.
+     *
+     * <p>Note that registering this callback is optional unless the user holds on extra reference
+     * to {@link AHardwareBuffer} returned from {@link AImage_getHardwareBuffer} by calling {@link
+     * AHardwareBuffer_acquire} or creating external graphic objects, such as EglImage, from it.</p>
+     *
+     * <p>If the callback is registered, the {@link AImageReader} will hold on the last of its
+     * references to the {@link AHardwareBuffer} until this callback returns. User can use the
+     * callback to get notified that it becomes the last owner of the buffer. It is up to the user
+     * to decide to either 1) immediately release all of its references to the buffer; or 2) keep
+     * using the buffer and release it in future. Note that, if option 2 if used, user of this API
+     * is responsible to deallocate the buffer properly by calling {@link AHardwareBuffer_release}.
+     * </p>
+     *
+     * @see AHardwareBuffer_release
+     * @see AImage_getHardwareBuffer
+     */
+    AImageReader_BufferRemovedCallback onBufferRemoved;
+} AImageReader_BufferRemovedListener;
+
+/**
+ * Set the onBufferRemoved listener of this image reader.
+ *
+ * <p>Note that calling this method will replace previously registered listeners.</p>
+ *
+ * @param reader The image reader of interest.
+ * @param listener the {@link AImageReader_BufferRemovedListener} to be registered. Set this to
+ * NULL if application no longer needs to listen to buffer removed events.
+ *
+ * @return <ul>
+ *         <li>{@link AMEDIA_OK} if the method call succeeds.</li>
+ *         <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if reader is NULL.</li></ul>
+ *
+ * @see AImage_getHardwareBuffer
+ */
+media_status_t AImageReader_setBufferRemovedListener(
+        AImageReader* reader, AImageReader_BufferRemovedListener* listener);
+
+#endif /* __ANDROID_API__ >= 26 */
+
+
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/include/ndk/NdkMediaCodec.h b/include/ndk/NdkMediaCodec.h
index fcb3a99..637bf9b 100644
--- a/include/ndk/NdkMediaCodec.h
+++ b/include/ndk/NdkMediaCodec.h
@@ -27,7 +27,7 @@
 #ifndef _NDK_MEDIA_CODEC_H
 #define _NDK_MEDIA_CODEC_H
 
-#include <android/native_window.h>
+#include <sys/cdefs.h>
 
 #include "NdkMediaCrypto.h"
 #include "NdkMediaError.h"
@@ -37,6 +37,9 @@
 extern "C" {
 #endif
 
+struct ANativeWindow;
+
+#if __ANDROID_API__ >= 21
 
 struct AMediaCodec;
 typedef struct AMediaCodec AMediaCodec;
@@ -176,6 +179,78 @@
 media_status_t AMediaCodec_releaseOutputBufferAtTime(
         AMediaCodec *mData, size_t idx, int64_t timestampNs);
 
+/**
+ * Creates a Surface that can be used as the input to encoder, in place of input buffers
+ *
+ * This can only be called after the codec has been configured via
+ * AMediaCodec_configure(..); and before AMediaCodec_start() has been called.
+ *
+ * The application is responsible for releasing the surface by calling
+ * ANativeWindow_release() when done.
+ *
+ * For more details, see the Java documentation for MediaCodec.createInputSurface.
+ */
+media_status_t AMediaCodec_createInputSurface(
+        AMediaCodec *mData, ANativeWindow **surface);
+
+/**
+ * Creates a persistent Surface that can be used as the input to encoder
+ *
+ * Persistent surface can be reused by MediaCodec instances and can be set
+ * on a new instance via AMediaCodec_setInputSurface().
+ * A persistent surface can be connected to at most one instance of MediaCodec
+ * at any point in time.
+ *
+ * The application is responsible for releasing the surface by calling
+ * ANativeWindow_release() when done.
+ *
+ * For more details, see the Java documentation for MediaCodec.createPersistentInputSurface.
+ */
+media_status_t AMediaCodec_createPersistentInputSurface(
+        ANativeWindow **surface);
+
+/**
+ * Set a persistent-surface that can be used as the input to encoder, in place of input buffers
+ *
+ * The surface provided *must* be a persistent surface created via
+ * AMediaCodec_createPersistentInputSurface()
+ * This can only be called after the codec has been configured by calling
+ * AMediaCodec_configure(..); and before AMediaCodec_start() has been called.
+ *
+ * For more details, see the Java documentation for MediaCodec.setInputSurface.
+ */
+media_status_t AMediaCodec_setInputSurface(
+        AMediaCodec *mData, ANativeWindow *surface);
+
+/**
+ * Signal additional parameters to the codec instance.
+ *
+ * Parameters can be communicated only when the codec is running, i.e
+ * after AMediaCodec_start() has been called.
+ *
+ * NOTE: Some of these parameter changes may silently fail to apply.
+ */
+media_status_t AMediaCodec_setParameters(
+        AMediaCodec *mData, const AMediaFormat* params);
+
+/**
+ * Signals end-of-stream on input. Equivalent to submitting an empty buffer with
+ * AMEDIACODEC_BUFFER_FLAG_END_OF_STREAM set.
+ *
+ * Returns AMEDIA_ERROR_INVALID_OPERATION when used with an encoder not in executing state
+ * or not receiving input from a Surface created by AMediaCodec_createInputSurface or
+ * AMediaCodec_createPersistentInputSurface.
+ *
+ * Returns the previous codec error if one exists.
+ *
+ * Returns AMEDIA_OK when completed succesfully.
+ *
+ * For more details, see the Java documentation for MediaCodec.signalEndOfInputStream.
+ */
+media_status_t AMediaCodec_signalEndOfInputStream(AMediaCodec *mData);
+
+
+
 typedef enum {
     AMEDIACODECRYPTOINFO_MODE_CLEAR = 0,
     AMEDIACODECRYPTOINFO_MODE_AES_CTR = 1,
@@ -254,6 +329,8 @@
  */
 media_status_t AMediaCodecCryptoInfo_getEncryptedBytes(AMediaCodecCryptoInfo*, size_t *dst);
 
+#endif /* __ANDROID_API__ >= 21 */
+
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/include/ndk/NdkMediaCrypto.h b/include/ndk/NdkMediaCrypto.h
index 90374c5..9236765 100644
--- a/include/ndk/NdkMediaCrypto.h
+++ b/include/ndk/NdkMediaCrypto.h
@@ -28,6 +28,7 @@
 #ifndef _NDK_MEDIA_CRYPTO_H
 #define _NDK_MEDIA_CRYPTO_H
 
+#include <sys/cdefs.h>
 #include <sys/types.h>
 #include <stdbool.h>
 
@@ -35,6 +36,8 @@
 extern "C" {
 #endif
 
+#if __ANDROID_API__ >= 21
+
 struct AMediaCrypto;
 typedef struct AMediaCrypto AMediaCrypto;
 
@@ -48,6 +51,7 @@
 
 void AMediaCrypto_delete(AMediaCrypto* crypto);
 
+#endif /* __ANDROID_API__ >= 21 */
 
 #ifdef __cplusplus
 } // extern "C"
diff --git a/include/ndk/NdkMediaDrm.h b/include/ndk/NdkMediaDrm.h
index 3c312a9..cba4380 100644
--- a/include/ndk/NdkMediaDrm.h
+++ b/include/ndk/NdkMediaDrm.h
@@ -27,14 +27,17 @@
 #ifndef _NDK_MEDIA_DRM_H
 #define _NDK_MEDIA_DRM_H
 
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/cdefs.h>
+
 #include "NdkMediaError.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include <stdint.h>
-#include <stdbool.h>
+#if __ANDROID_API__ >= 21
 
 struct AMediaDrm;
 typedef struct AMediaDrm AMediaDrm;
@@ -156,8 +159,7 @@
  * to obtain or release keys used to decrypt encrypted content.
  * AMediaDrm_getKeyRequest is used to obtain an opaque key request byte array that
  * is delivered to the license server.  The opaque key request byte array is
- * returned in KeyRequest.data.  The recommended URL to deliver the key request to
- * is returned in KeyRequest.defaultUrl.
+ * returned in KeyRequest.data.
  *
  * After the app has received the key request response from the server,
  * it should deliver to the response to the DRM engine plugin using the method
@@ -448,6 +450,8 @@
         const char *macAlgorithm, uint8_t *keyId, const uint8_t *message, size_t messageSize,
         const uint8_t *signature, size_t signatureSize);
 
+#endif /* __ANDROID_API__ >= 21 */
+
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/include/ndk/NdkMediaError.h b/include/ndk/NdkMediaError.h
index 60d401b..1b51364 100644
--- a/include/ndk/NdkMediaError.h
+++ b/include/ndk/NdkMediaError.h
@@ -28,10 +28,14 @@
 #ifndef _NDK_MEDIA_ERROR_H
 #define _NDK_MEDIA_ERROR_H
 
+#include <sys/cdefs.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+#if __ANDROID_API__ >= 21
+
 typedef enum {
     AMEDIA_OK = 0,
 
@@ -41,6 +45,7 @@
     AMEDIA_ERROR_UNSUPPORTED           = AMEDIA_ERROR_BASE - 2,
     AMEDIA_ERROR_INVALID_OBJECT        = AMEDIA_ERROR_BASE - 3,
     AMEDIA_ERROR_INVALID_PARAMETER     = AMEDIA_ERROR_BASE - 4,
+    AMEDIA_ERROR_INVALID_OPERATION     = AMEDIA_ERROR_BASE - 5,
 
     AMEDIA_DRM_ERROR_BASE              = -20000,
     AMEDIA_DRM_NOT_PROVISIONED         = AMEDIA_DRM_ERROR_BASE - 1,
@@ -56,9 +61,13 @@
     AMEDIA_IMGREADER_ERROR_BASE          = -30000,
     AMEDIA_IMGREADER_NO_BUFFER_AVAILABLE = AMEDIA_IMGREADER_ERROR_BASE - 1,
     AMEDIA_IMGREADER_MAX_IMAGES_ACQUIRED = AMEDIA_IMGREADER_ERROR_BASE - 2,
+    AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE   = AMEDIA_IMGREADER_ERROR_BASE - 3,
+    AMEDIA_IMGREADER_CANNOT_UNLOCK_IMAGE = AMEDIA_IMGREADER_ERROR_BASE - 4,
+    AMEDIA_IMGREADER_IMAGE_NOT_LOCKED    = AMEDIA_IMGREADER_ERROR_BASE - 5,
 
 } media_status_t;
 
+#endif /* __ANDROID_API__ >= 21 */
 
 #ifdef __cplusplus
 } // extern "C"
diff --git a/include/ndk/NdkMediaExtractor.h b/include/ndk/NdkMediaExtractor.h
index 7324d31..c3180dc 100644
--- a/include/ndk/NdkMediaExtractor.h
+++ b/include/ndk/NdkMediaExtractor.h
@@ -28,6 +28,7 @@
 #ifndef _NDK_MEDIA_EXTRACTOR_H
 #define _NDK_MEDIA_EXTRACTOR_H
 
+#include <sys/cdefs.h>
 #include <sys/types.h>
 
 #include "NdkMediaCodec.h"
@@ -38,6 +39,8 @@
 extern "C" {
 #endif
 
+#if __ANDROID_API__ >= 21
+
 struct AMediaExtractor;
 typedef struct AMediaExtractor AMediaExtractor;
 
@@ -158,6 +161,8 @@
     AMEDIAEXTRACTOR_SAMPLE_FLAG_ENCRYPTED = 2,
 };
 
+#endif /* __ANDROID_API__ >= 21 */
+
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/include/ndk/NdkMediaFormat.h b/include/ndk/NdkMediaFormat.h
index ab29791..a2a21d2 100644
--- a/include/ndk/NdkMediaFormat.h
+++ b/include/ndk/NdkMediaFormat.h
@@ -27,6 +27,7 @@
 #ifndef _NDK_MEDIA_FORMAT_H
 #define _NDK_MEDIA_FORMAT_H
 
+#include <sys/cdefs.h>
 #include <sys/types.h>
 
 #include "NdkMediaError.h"
@@ -35,6 +36,8 @@
 extern "C" {
 #endif
 
+#if __ANDROID_API__ >= 21
+
 struct AMediaFormat;
 typedef struct AMediaFormat AMediaFormat;
 
@@ -104,6 +107,8 @@
 extern const char* AMEDIAFORMAT_KEY_WIDTH;
 extern const char* AMEDIAFORMAT_KEY_STRIDE;
 
+#endif /* __ANDROID_API__ >= 21 */
+
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/include/ndk/NdkMediaMuxer.h b/include/ndk/NdkMediaMuxer.h
index 90d946c..25987a2 100644
--- a/include/ndk/NdkMediaMuxer.h
+++ b/include/ndk/NdkMediaMuxer.h
@@ -28,6 +28,7 @@
 #ifndef _NDK_MEDIA_MUXER_H
 #define _NDK_MEDIA_MUXER_H
 
+#include <sys/cdefs.h>
 #include <sys/types.h>
 
 #include "NdkMediaCodec.h"
@@ -38,6 +39,8 @@
 extern "C" {
 #endif
 
+#if __ANDROID_API__ >= 21
+
 struct AMediaMuxer;
 typedef struct AMediaMuxer AMediaMuxer;
 
@@ -112,6 +115,8 @@
 media_status_t AMediaMuxer_writeSampleData(AMediaMuxer *muxer,
         size_t trackIdx, const uint8_t *data, const AMediaCodecBufferInfo *info);
 
+#endif /* __ANDROID_API__ >= 21 */
+
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/media/audioserver/Android.mk b/media/audioserver/Android.mk
index 5ce1798..afd1189 100644
--- a/media/audioserver/Android.mk
+++ b/media/audioserver/Android.mk
@@ -6,18 +6,20 @@
 	main_audioserver.cpp
 
 LOCAL_SHARED_LIBRARIES := \
+	libaaudioservice \
 	libaudioflinger \
 	libaudiopolicyservice \
 	libbinder \
 	libcutils \
 	liblog \
-	libmedia \
 	libmedialogservice \
 	libnbaio \
 	libradioservice \
 	libsoundtriggerservice \
-	libutils
+	libutils \
+	libhwbinder
 
+# TODO oboeservice is the old folder name for aaudioservice. It will be changed.
 LOCAL_C_INCLUDES := \
 	frameworks/av/services/audioflinger \
 	frameworks/av/services/audiopolicy \
@@ -26,8 +28,12 @@
 	frameworks/av/services/audiopolicy/engine/interface \
 	frameworks/av/services/audiopolicy/service \
 	frameworks/av/services/medialog \
+	frameworks/av/services/oboeservice \
 	frameworks/av/services/radio \
 	frameworks/av/services/soundtrigger \
+	frameworks/av/media/libaaudio/include \
+	frameworks/av/media/libaaudio/src \
+	frameworks/av/media/libaaudio/src/binding \
 	$(call include-path-for, audio-utils) \
 	external/sonic \
 
diff --git a/media/audioserver/audioserver.rc b/media/audioserver/audioserver.rc
index 80f78b6..9d42bce 100644
--- a/media/audioserver/audioserver.rc
+++ b/media/audioserver/audioserver.rc
@@ -5,3 +5,9 @@
     group audio camera drmrpc inet media mediadrm net_bt net_bt_admin net_bw_acct
     ioprio rt 4
     writepid /dev/cpuset/foreground/tasks /dev/stune/foreground/tasks
+    onrestart restart audio-hal-2-0
+
+on property:vts.native_server.on=1
+    stop audioserver
+on property:vts.native_server.on=0
+    start audioserver
diff --git a/media/audioserver/main_audioserver.cpp b/media/audioserver/main_audioserver.cpp
index 4a7a988..ba47fd4 100644
--- a/media/audioserver/main_audioserver.cpp
+++ b/media/audioserver/main_audioserver.cpp
@@ -27,9 +27,14 @@
 #include <binder/IServiceManager.h>
 #include <utils/Log.h>
 
+// FIXME: remove when BUG 31748996 is fixed
+#include <hwbinder/IPCThreadState.h>
+#include <hwbinder/ProcessState.h>
+
 // from LOCAL_C_INCLUDES
 #include "AudioFlinger.h"
 #include "AudioPolicyService.h"
+#include "AAudioService.h"
 #include "MediaLogService.h"
 #include "RadioService.h"
 #include "SoundTriggerHwService.h"
@@ -127,9 +132,15 @@
         ALOGI("ServiceManager: %p", sm.get());
         AudioFlinger::instantiate();
         AudioPolicyService::instantiate();
+        // AAudioService disabled because we do not support MMAP mode in OC or OC-DR1.
+        // AAudioService::instantiate();
         RadioService::instantiate();
         SoundTriggerHwService::instantiate();
         ProcessState::self()->startThreadPool();
+
+// FIXME: remove when BUG 31748996 is fixed
+        android::hardware::ProcessState::self()->startThreadPool();
+
         IPCThreadState::self()->joinThreadPool();
     }
 }
diff --git a/media/common_time/ICommonClock.cpp b/media/common_time/ICommonClock.cpp
index 19b7d6e..f1f1fca 100644
--- a/media/common_time/ICommonClock.cpp
+++ b/media/common_time/ICommonClock.cpp
@@ -48,7 +48,7 @@
 class BpCommonClock : public BpInterface<ICommonClock>
 {
   public:
-    BpCommonClock(const sp<IBinder>& impl)
+    explicit BpCommonClock(const sp<IBinder>& impl)
         : BpInterface<ICommonClock>(impl) {}
 
     virtual status_t isCommonTimeValid(bool* valid, uint32_t* timelineID) {
@@ -401,7 +401,7 @@
 class BpCommonClockListener : public BpInterface<ICommonClockListener>
 {
   public:
-    BpCommonClockListener(const sp<IBinder>& impl)
+    explicit BpCommonClockListener(const sp<IBinder>& impl)
         : BpInterface<ICommonClockListener>(impl) {}
 
     virtual void onTimelineChanged(uint64_t timelineID) {
diff --git a/media/common_time/ICommonTimeConfig.cpp b/media/common_time/ICommonTimeConfig.cpp
index 67167b0..e587b39 100644
--- a/media/common_time/ICommonTimeConfig.cpp
+++ b/media/common_time/ICommonTimeConfig.cpp
@@ -50,7 +50,7 @@
 class BpCommonTimeConfig : public BpInterface<ICommonTimeConfig>
 {
   public:
-    BpCommonTimeConfig(const sp<IBinder>& impl)
+    explicit BpCommonTimeConfig(const sp<IBinder>& impl)
         : BpInterface<ICommonTimeConfig>(impl) {}
 
     virtual status_t getMasterElectionPriority(uint8_t *priority) {
diff --git a/media/common_time/cc_helper.cpp b/media/common_time/cc_helper.cpp
index 222b7ce..6a7de74 100644
--- a/media/common_time/cc_helper.cpp
+++ b/media/common_time/cc_helper.cpp
@@ -80,7 +80,7 @@
     }
 }
 
-void CCHelper::CommonClockListener::onTimelineChanged(uint64_t timelineID __unused) {
+void CCHelper::CommonClockListener::onTimelineChanged(uint64_t /*timelineID*/) {
     // do nothing; listener is only really used as a token so the server can
     // find out when clients die.
 }
diff --git a/media/img_utils/include/img_utils/EndianUtils.h b/media/img_utils/include/img_utils/EndianUtils.h
index e99be1a..bfa42e9 100644
--- a/media/img_utils/include/img_utils/EndianUtils.h
+++ b/media/img_utils/include/img_utils/EndianUtils.h
@@ -58,7 +58,7 @@
          * Wrap the given Output.  Calling write methods will result in
          * writes to this output.
          */
-        EndianOutput(Output* out, Endianness end=LITTLE);
+        explicit EndianOutput(Output* out, Endianness end=LITTLE);
 
         virtual ~EndianOutput();
 
diff --git a/media/img_utils/include/img_utils/FileInput.h b/media/img_utils/include/img_utils/FileInput.h
index 4d4f22b..66afaff 100644
--- a/media/img_utils/include/img_utils/FileInput.h
+++ b/media/img_utils/include/img_utils/FileInput.h
@@ -36,7 +36,7 @@
         /**
          * Create a file input for the given path.
          */
-        FileInput(String8 path);
+        explicit FileInput(String8 path);
 
         virtual ~FileInput();
 
diff --git a/media/img_utils/include/img_utils/FileOutput.h b/media/img_utils/include/img_utils/FileOutput.h
index fd5be27..3d4cf76 100644
--- a/media/img_utils/include/img_utils/FileOutput.h
+++ b/media/img_utils/include/img_utils/FileOutput.h
@@ -29,7 +29,7 @@
 
 class ANDROID_API FileOutput : public Output {
     public:
-        FileOutput(String8 path);
+        explicit FileOutput(String8 path);
         virtual ~FileOutput();
         virtual status_t open();
         virtual status_t write(const uint8_t* buf, size_t offset, size_t count);
diff --git a/media/img_utils/include/img_utils/TiffHelpers.h b/media/img_utils/include/img_utils/TiffHelpers.h
index 0969e4d..3e5f863 100644
--- a/media/img_utils/include/img_utils/TiffHelpers.h
+++ b/media/img_utils/include/img_utils/TiffHelpers.h
@@ -25,7 +25,7 @@
 const uint8_t ZERO_WORD[] = {0, 0, 0, 0};
 
 #define BAIL_ON_FAIL(x, flag) \
-    if ((flag = (x)) != OK) return flag;
+    if (((flag) = (x)) != OK) return flag;
 
 #define BYTES_TILL_WORD(index) \
     ((TIFF_WORD_SIZE - ((index) % TIFF_WORD_SIZE)) % TIFF_WORD_SIZE)
diff --git a/media/img_utils/include/img_utils/TiffIfd.h b/media/img_utils/include/img_utils/TiffIfd.h
index 51b5c9a..2d8e91f 100644
--- a/media/img_utils/include/img_utils/TiffIfd.h
+++ b/media/img_utils/include/img_utils/TiffIfd.h
@@ -42,7 +42,7 @@
  */
 class ANDROID_API TiffIfd : public TiffWritable {
     public:
-        TiffIfd(uint32_t ifdId);
+        explicit TiffIfd(uint32_t ifdId);
         virtual ~TiffIfd();
 
         /**
diff --git a/media/img_utils/src/Android.mk b/media/img_utils/src/Android.mk
index 4074849..4c6fe70 100644
--- a/media/img_utils/src/Android.mk
+++ b/media/img_utils/src/Android.mk
@@ -34,11 +34,9 @@
   StripSource.cpp \
 
 LOCAL_SHARED_LIBRARIES := \
-  libexpat \
+  liblog \
   libutils \
   libcutils \
-  libcamera_metadata \
-  libcamera_client
 
 LOCAL_C_INCLUDES += \
   $(LOCAL_PATH)/../include \
diff --git a/media/img_utils/src/TiffWriter.cpp b/media/img_utils/src/TiffWriter.cpp
index a6f9218..564474f 100644
--- a/media/img_utils/src/TiffWriter.cpp
+++ b/media/img_utils/src/TiffWriter.cpp
@@ -40,7 +40,7 @@
 }
 
 #define ARRAY_SIZE(array) \
-    (sizeof(array) / sizeof(array[0]))
+    (sizeof(array) / sizeof((array)[0]))
 
 KeyedVector<uint16_t, const TagDefinition_t*> TiffWriter::sTagMaps[] = {
     buildTagMap(TIFF_EP_TAG_DEFINITIONS, ARRAY_SIZE(TIFF_EP_TAG_DEFINITIONS)),
diff --git a/media/libaaudio/Android.bp b/media/libaaudio/Android.bp
new file mode 100644
index 0000000..f539ba9
--- /dev/null
+++ b/media/libaaudio/Android.bp
@@ -0,0 +1,28 @@
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+ndk_headers {
+    name: "libAAudio_headers",
+    from: "include",
+    to: "",
+    srcs: ["include/aaudio/*.h"],
+    license: "include/aaudio/NOTICE",
+}
+
+ndk_library {
+    name: "libaaudio",
+    symbol_file: "libaaudio.map.txt",
+    first_version: "26",
+    unversioned_until: "current",
+}
diff --git a/media/libaaudio/Android.mk b/media/libaaudio/Android.mk
new file mode 100644
index 0000000..5053e7d
--- /dev/null
+++ b/media/libaaudio/Android.mk
@@ -0,0 +1 @@
+include $(call all-subdir-makefiles)
diff --git a/media/libaaudio/Doxyfile b/media/libaaudio/Doxyfile
new file mode 100644
index 0000000..e2c4960
--- /dev/null
+++ b/media/libaaudio/Doxyfile
@@ -0,0 +1,2312 @@
+# Doxyfile 1.8.6
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+#
+# All text after a double hash (##) is considered a comment and is placed in
+# front of the TAG it is preceding.
+#
+# All text after a single hash (#) is considered a comment and will be ignored.
+# The format is:
+# TAG = value [value, ...]
+# For lists, items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (\" \").
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the config file
+# that follow. The default is UTF-8 which is also the encoding used for all text
+# before the first occurrence of this tag. Doxygen uses libiconv (or the iconv
+# built into libc) for the transcoding. See http://www.gnu.org/software/libiconv
+# for the list of possible encodings.
+# The default value is: UTF-8.
+
+DOXYFILE_ENCODING      = UTF-8
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by
+# double-quotes, unless you are using Doxywizard) that should identify the
+# project for which the documentation is generated. This name is used in the
+# title of most generated pages and in a few other places.
+# The default value is: My Project.
+
+PROJECT_NAME           = "AAudio"
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. This
+# could be handy for archiving the generated documentation or if some version
+# control system is used.
+
+PROJECT_NUMBER         =
+
+# Using the PROJECT_BRIEF tag one can provide an optional one line description
+# for a project that appears at the top of each page and should give viewer a
+# quick idea about the purpose of the project. Keep the description short.
+
+PROJECT_BRIEF          =
+
+# With the PROJECT_LOGO tag one can specify an logo or icon that is included in
+# the documentation. The maximum height of the logo should not exceed 55 pixels
+# and the maximum width should not exceed 200 pixels. Doxygen will copy the logo
+# to the output directory.
+
+PROJECT_LOGO           =
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
+# into which the generated documentation will be written. If a relative path is
+# entered, it will be relative to the location where doxygen was started. If
+# left blank the current directory will be used.
+
+OUTPUT_DIRECTORY       =
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 4096 sub-
+# directories (in 2 levels) under the output directory of each output format and
+# will distribute the generated files over these directories. Enabling this
+# option can be useful when feeding doxygen a huge amount of source files, where
+# putting all generated files in the same directory would otherwise causes
+# performance problems for the file system.
+# The default value is: NO.
+
+CREATE_SUBDIRS         = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
+# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
+# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
+# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
+# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
+# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
+# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
+# Ukrainian and Vietnamese.
+# The default value is: English.
+
+OUTPUT_LANGUAGE        = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES doxygen will include brief member
+# descriptions after the members that are listed in the file and class
+# documentation (similar to Javadoc). Set to NO to disable this.
+# The default value is: YES.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES doxygen will prepend the brief
+# description of a member or function before the detailed description
+#
+# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+# The default value is: YES.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator that is
+# used to form the text in various listings. Each string in this list, if found
+# as the leading text of the brief description, will be stripped from the text
+# and the result, after processing the whole list, is used as the annotated
+# text. Otherwise, the brief description is used as-is. If left blank, the
+# following values are used ($name is automatically replaced with the name of
+# the entity):The $name class, The $name widget, The $name file, is, provides,
+# specifies, contains, represents, a, an and the.
+
+ABBREVIATE_BRIEF       =
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# doxygen will generate a detailed section even if there is only a brief
+# description.
+# The default value is: NO.
+
+ALWAYS_DETAILED_SEC    = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+# The default value is: NO.
+
+INLINE_INHERITED_MEMB  = NO
+
+# If the FULL_PATH_NAMES tag is set to YES doxygen will prepend the full path
+# before files name in the file list and in the header files. If set to NO the
+# shortest path that makes the file name unique will be used
+# The default value is: YES.
+
+FULL_PATH_NAMES        = YES
+
+# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path.
+# Stripping is only done if one of the specified strings matches the left-hand
+# part of the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the path to
+# strip.
+#
+# Note that you can specify absolute paths here, but also relative paths, which
+# will be relative from the directory where doxygen is started.
+# This tag requires that the tag FULL_PATH_NAMES is set to YES.
+
+STRIP_FROM_PATH        =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
+# path mentioned in the documentation of a class, which tells the reader which
+# header file to include in order to use a class. If left blank only the name of
+# the header file containing the class definition is used. Otherwise one should
+# specify the list of include paths that are normally passed to the compiler
+# using the -I flag.
+
+STRIP_FROM_INC_PATH    =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
+# less readable) file names. This can be useful is your file systems doesn't
+# support long names like on DOS, Mac, or CD-ROM.
+# The default value is: NO.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
+# first line (until the first dot) of a Javadoc-style comment as the brief
+# description. If set to NO, the Javadoc-style will behave just like regular Qt-
+# style comments (thus requiring an explicit @brief command for a brief
+# description.)
+# The default value is: NO.
+
+JAVADOC_AUTOBRIEF      = NO
+
+# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
+# line (until the first dot) of a Qt-style comment as the brief description. If
+# set to NO, the Qt-style will behave just like regular Qt-style comments (thus
+# requiring an explicit \brief command for a brief description.)
+# The default value is: NO.
+
+QT_AUTOBRIEF           = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a
+# multi-line C++ special comment block (i.e. a block of //! or /// comments) as
+# a brief description. This used to be the default behavior. The new default is
+# to treat a multi-line C++ comment block as a detailed description. Set this
+# tag to YES if you prefer the old behavior instead.
+#
+# Note that setting this tag to YES also means that rational rose comments are
+# not recognized any more.
+# The default value is: NO.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
+# documentation from any documented member that it re-implements.
+# The default value is: YES.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce a
+# new page for each member. If set to NO, the documentation of a member will be
+# part of the file/class/namespace that contains it.
+# The default value is: NO.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
+# uses this value to replace tabs by spaces in code fragments.
+# Minimum value: 1, maximum value: 16, default value: 4.
+
+TAB_SIZE               = 4
+
+# This tag can be used to specify a number of aliases that act as commands in
+# the documentation. An alias has the form:
+# name=value
+# For example adding
+# "sideeffect=@par Side Effects:\n"
+# will allow you to put the command \sideeffect (or @sideeffect) in the
+# documentation, which will result in a user-defined paragraph with heading
+# "Side Effects:". You can put \n's in the value part of an alias to insert
+# newlines.
+
+ALIASES                =
+
+# This tag can be used to specify a number of word-keyword mappings (TCL only).
+# A mapping has the form "name=value". For example adding "class=itcl::class"
+# will allow you to use the command class in the itcl::class meaning.
+
+TCL_SUBST              =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C. For
+# instance, some of the names that are used will be different. The list of all
+# members will be omitted, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_FOR_C  = NO
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or
+# Python sources only. Doxygen will then generate output that is more tailored
+# for that language. For instance, namespaces will be presented as packages,
+# qualified scopes will look different, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources. Doxygen will then generate output that is tailored for Fortran.
+# The default value is: NO.
+
+OPTIMIZE_FOR_FORTRAN   = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for VHDL.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_VHDL   = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it
+# parses. With this tag you can assign which parser to use for a given
+# extension. Doxygen has a built-in mapping, but you can override or extend it
+# using this tag. The format is ext=language, where ext is a file extension, and
+# language is one of the parsers supported by doxygen: IDL, Java, Javascript,
+# C#, C, C++, D, PHP, Objective-C, Python, Fortran, VHDL. For instance to make
+# doxygen treat .inc files as Fortran files (default is PHP), and .f files as C
+# (default is Fortran), use: inc=Fortran f=C.
+#
+# Note For files without extension you can use no_extension as a placeholder.
+#
+# Note that for custom extensions you also need to set FILE_PATTERNS otherwise
+# the files are not read by doxygen.
+
+EXTENSION_MAPPING      =
+
+# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
+# according to the Markdown format, which allows for more readable
+# documentation. See http://daringfireball.net/projects/markdown/ for details.
+# The output of markdown processing is further processed by doxygen, so you can
+# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
+# case of backward compatibilities issues.
+# The default value is: YES.
+
+MARKDOWN_SUPPORT       = YES
+
+# When enabled doxygen tries to link words that correspond to documented
+# classes, or namespaces to their corresponding documentation. Such a link can
+# be prevented in individual cases by by putting a % sign in front of the word
+# or globally by setting AUTOLINK_SUPPORT to NO.
+# The default value is: YES.
+
+AUTOLINK_SUPPORT       = YES
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should set this
+# tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string);
+# versus func(std::string) {}). This also make the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+# The default value is: NO.
+
+BUILTIN_STL_SUPPORT    = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+# The default value is: NO.
+
+CPP_CLI_SUPPORT        = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
+# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen
+# will parse them like normal C++ but will assume all classes use public instead
+# of private inheritance when no explicit protection keyword is present.
+# The default value is: NO.
+
+SIP_SUPPORT            = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate
+# getter and setter methods for a property. Setting this option to YES will make
+# doxygen to replace the get and set methods by a property in the documentation.
+# This will only work if the methods are indeed getting or setting a simple
+# type. If this is not the case, or you want to show the methods anyway, you
+# should set this option to NO.
+# The default value is: YES.
+
+IDL_PROPERTY_SUPPORT   = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES, then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+# The default value is: NO.
+
+DISTRIBUTE_GROUP_DOC   = NO
+
+# Set the SUBGROUPING tag to YES to allow class member groups of the same type
+# (for instance a group of public functions) to be put as a subgroup of that
+# type (e.g. under the Public Functions section). Set it to NO to prevent
+# subgrouping. Alternatively, this can be done per class using the
+# \nosubgrouping command.
+# The default value is: YES.
+
+SUBGROUPING            = YES
+
+# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions
+# are shown inside the group in which they are included (e.g. using \ingroup)
+# instead of on a separate page (for HTML and Man pages) or section (for LaTeX
+# and RTF).
+#
+# Note that this feature does not work in combination with
+# SEPARATE_MEMBER_PAGES.
+# The default value is: NO.
+
+INLINE_GROUPED_CLASSES = NO
+
+# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions
+# with only public data fields or simple typedef fields will be shown inline in
+# the documentation of the scope in which they are defined (i.e. file,
+# namespace, or group documentation), provided this scope is documented. If set
+# to NO, structs, classes, and unions are shown on a separate page (for HTML and
+# Man pages) or section (for LaTeX and RTF).
+# The default value is: NO.
+
+INLINE_SIMPLE_STRUCTS  = NO
+
+# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or
+# enum is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
+# namespace, or class. And the struct will be named TypeS. This can typically be
+# useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+# The default value is: NO.
+
+TYPEDEF_HIDES_STRUCT   = NO
+
+# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
+# cache is used to resolve symbols given their name and scope. Since this can be
+# an expensive process and often the same symbol appears multiple times in the
+# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small
+# doxygen will become slower. If the cache is too large, memory is wasted. The
+# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range
+# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536
+# symbols. At the end of a run doxygen will report the cache usage and suggest
+# the optimal cache size from a speed point of view.
+# Minimum value: 0, maximum value: 9, default value: 0.
+
+LOOKUP_CACHE_SIZE      = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
+# documentation are documented, even if no documentation was available. Private
+# class members and static file members will be hidden unless the
+# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
+# Note: This will also disable the warnings about undocumented members that are
+# normally produced when WARNINGS is set to YES.
+# The default value is: NO.
+
+EXTRACT_ALL            = YES
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE        = NO
+
+# If the EXTRACT_PACKAGE tag is set to YES all members with package or internal
+# scope will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PACKAGE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file will be
+# included in the documentation.
+# The default value is: NO.
+
+EXTRACT_STATIC         = YES
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) defined
+# locally in source files will be included in the documentation. If set to NO
+# only classes defined in header files are included. Does not have any effect
+# for Java sources.
+# The default value is: YES.
+
+EXTRACT_LOCAL_CLASSES  = YES
+
+# This flag is only useful for Objective-C code. When set to YES local methods,
+# which are defined in the implementation section but not in the interface are
+# included in the documentation. If set to NO only methods in the interface are
+# included.
+# The default value is: NO.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base name of
+# the file that contains the anonymous namespace. By default anonymous namespace
+# are hidden.
+# The default value is: NO.
+
+EXTRACT_ANON_NSPACES   = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
+# undocumented members inside documented classes or files. If set to NO these
+# members will be included in the various overviews, but no documentation
+# section is generated. This option has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_MEMBERS     = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy. If set
+# to NO these classes will be included in the various overviews. This option has
+# no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_CLASSES     = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
+# (class|struct|union) declarations. If set to NO these declarations will be
+# included in the documentation.
+# The default value is: NO.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
+# documentation blocks found inside the body of a function. If set to NO these
+# blocks will be appended to the function's detailed documentation block.
+# The default value is: NO.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation that is typed after a
+# \internal command is included. If the tag is set to NO then the documentation
+# will be excluded. Set it to YES to include the internal documentation.
+# The default value is: NO.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
+# their full class and namespace scopes in the documentation. If set to YES the
+# scope will be hidden.
+# The default value is: NO.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
+# the files that are included by a file in the documentation of that file.
+# The default value is: YES.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
+# grouped member an include statement to the documentation, telling the reader
+# which file to include in order to use the member.
+# The default value is: NO.
+
+SHOW_GROUPED_MEMB_INC  = NO
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
+# files with double quotes in the documentation rather than with sharp brackets.
+# The default value is: NO.
+
+FORCE_LOCAL_INCLUDES   = NO
+
+# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
+# documentation for inline members.
+# The default value is: YES.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
+# (detailed) documentation of file and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order.
+# The default value is: YES.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
+# descriptions of file, namespace and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order. Note that
+# this will also influence the order of the classes in the class list.
+# The default value is: NO.
+
+SORT_BRIEF_DOCS        = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
+# (brief and detailed) documentation of class members so that constructors and
+# destructors are listed first. If set to NO the constructors will appear in the
+# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
+# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
+# member documentation.
+# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
+# detailed member documentation.
+# The default value is: NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
+# of group names into alphabetical order. If set to NO the group names will
+# appear in their defined order.
+# The default value is: NO.
+
+SORT_GROUP_NAMES       = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
+# fully-qualified names, including namespaces. If set to NO, the class list will
+# be sorted only by class name, not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the alphabetical
+# list.
+# The default value is: NO.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
+# type resolution of all parameters of a function it will reject a match between
+# the prototype and the implementation of a member function even if there is
+# only one candidate or it is obvious which candidate to choose by doing a
+# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
+# accept a match between prototype and implementation in such cases.
+# The default value is: NO.
+
+STRICT_PROTO_MATCHING  = NO
+
+# The GENERATE_TODOLIST tag can be used to enable ( YES) or disable ( NO) the
+# todo list. This list is created by putting \todo commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable ( YES) or disable ( NO) the
+# test list. This list is created by putting \test commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable ( YES) or disable ( NO) the bug
+# list. This list is created by putting \bug commands in the documentation.
+# The default value is: YES.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable ( YES) or disable ( NO)
+# the deprecated list. This list is created by putting \deprecated commands in
+# the documentation.
+# The default value is: YES.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
+# initial value of a variable or macro / define can have for it to appear in the
+# documentation. If the initializer consists of more lines than specified here
+# it will be hidden. Use a value of 0 to hide initializers completely. The
+# appearance of the value of individual variables and macros / defines can be
+# controlled using \showinitializer or \hideinitializer command in the
+# documentation regardless of this setting.
+# Minimum value: 0, maximum value: 10000, default value: 30.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
+# the bottom of the documentation of classes and structs. If set to YES the list
+# will mention the files that were used to generate the documentation.
+# The default value is: YES.
+
+SHOW_USED_FILES        = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
+# will remove the Files entry from the Quick Index and from the Folder Tree View
+# (if specified).
+# The default value is: YES.
+
+SHOW_FILES             = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
+# page. This will remove the Namespaces entry from the Quick Index and from the
+# Folder Tree View (if specified).
+# The default value is: YES.
+
+SHOW_NAMESPACES        = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command command input-file, where command is the value of the
+# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
+# by doxygen. Whatever the program writes to standard output is used as the file
+# version. For an example see the documentation.
+
+FILE_VERSION_FILTER    =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option. You can
+# optionally specify a file name after the option, if omitted DoxygenLayout.xml
+# will be used as the name of the layout file.
+#
+# Note that if you run doxygen from a directory containing a file called
+# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
+# tag is left empty.
+
+LAYOUT_FILE            =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
+# the reference definitions. This must be a list of .bib files. The .bib
+# extension is automatically appended if omitted. This requires the bibtex tool
+# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
+# For LaTeX the style of the bibliography can be controlled using
+# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
+# search path. Do not use file names with spaces, bibtex cannot handle them. See
+# also \cite for info how to create references.
+
+CITE_BIB_FILES         =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET                  = YES
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error ( stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS               = YES
+
+# If the WARN_IF_UNDOCUMENTED tag is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: YES.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some parameters
+# in a documented function, or documenting parameters that don't exist or using
+# markup commands wrongly.
+# The default value is: YES.
+
+WARN_IF_DOC_ERROR      = YES
+
+# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
+# are documented, but have no documentation for their parameters or return
+# value. If set to NO doxygen will only warn about wrong or incomplete parameter
+# documentation, but not about the absence of documentation.
+# The default value is: NO.
+
+WARN_NO_PARAMDOC       = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that doxygen
+# can produce. The string should contain the $file, $line, and $text tags, which
+# will be replaced by the file and line number from which the warning originated
+# and the warning text. Optionally the format may contain $version, which will
+# be replaced by the version of the file (if it could be obtained via
+# FILE_VERSION_FILTER)
+# The default value is: $file:$line: $text.
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning and error
+# messages should be written. If left blank the output is written to standard
+# error (stderr).
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces.
+# Note: If this tag is empty the current directory is searched.
+
+INPUT                  = include/aaudio/AAudio.h \
+                         src/legacy/AudioStreamTrack.h \
+                         src/legacy/AudioStreamRecord.h \
+                         src/legacy/AAudioLegacy.h \
+                         src/core/AudioStreamBuilder.h \
+                         src/core/AudioStream.h \
+                         src/utility/HandleTracker.h \
+                         src/utility/MonotonicCounter.h \
+                         src/utility/AudioClock.h \
+                         src/utility/AAudioUtilities.h
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
+# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
+# documentation (see: http://www.gnu.org/software/libiconv) for the list of
+# possible encodings.
+# The default value is: UTF-8.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank the
+# following patterns are tested:*.c, *.cc, *.cxx, *.cpp, *.c++, *.java, *.ii,
+# *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, *.hh, *.hxx, *.hpp,
+# *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, *.m, *.markdown,
+# *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf,
+# *.qsf, *.as and *.js.
+
+FILE_PATTERNS          =
+
+# The RECURSIVE tag can be used to specify whether or not subdirectories should
+# be searched for input files as well.
+# The default value is: NO.
+
+RECURSIVE              = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                =
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+# The default value is: NO.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       =
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories use the pattern */test/*
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or directories
+# that contain example code fragments that are included (see the \include
+# command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank all
+# files are included.
+
+EXAMPLE_PATTERNS       =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude commands
+# irrespective of the value of the RECURSIVE tag.
+# The default value is: NO.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or directories
+# that contain images that are to be included in the documentation (see the
+# \image command).
+
+IMAGE_PATH             =
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command:
+#
+# <filter> <input-file>
+#
+# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
+# name of an input file. Doxygen will then use the output that the filter
+# program writes to standard output. If FILTER_PATTERNS is specified, this tag
+# will be ignored.
+#
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis. Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match. The filters are a list of the form: pattern=filter
+# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
+# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
+# patterns match the file name, INPUT_FILTER is applied.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER ) will also be used to filter the input files that are used for
+# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
+# The default value is: NO.
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
+# it is also possible to disable source filtering for a specific pattern using
+# *.ext= (so without naming a filter).
+# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
+
+FILTER_SOURCE_PATTERNS =
+
+# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page
+# (index.html). This can be useful if you have a project on for instance GitHub
+# and want to reuse the introduction page also for the doxygen output.
+
+USE_MDFILE_AS_MAINPAGE =
+
+#---------------------------------------------------------------------------
+# Configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
+# generated. Documented entities will be cross-referenced with these sources.
+#
+# Note: To get rid of all source code in the generated output, make sure that
+# also VERBATIM_HEADERS is set to NO.
+# The default value is: NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body of functions,
+# classes and enums directly into the documentation.
+# The default value is: NO.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
+# special comment blocks from generated source code fragments. Normal C, C++ and
+# Fortran comments will always remain visible.
+# The default value is: YES.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
+# function all documented functions referencing it will be listed.
+# The default value is: NO.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES then for each documented function
+# all documented entities called/used by that function will be listed.
+# The default value is: NO.
+
+REFERENCES_RELATION    = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
+# to YES, then the hyperlinks from functions in REFERENCES_RELATION and
+# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
+# link to the documentation.
+# The default value is: YES.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
+# source code will show a tooltip with additional information such as prototype,
+# brief description and links to the definition and documentation. Since this
+# will make the HTML file larger and loading of large files a bit slower, you
+# can opt to disable this feature.
+# The default value is: YES.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+SOURCE_TOOLTIPS        = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code will
+# point to the HTML generated by the htags(1) tool instead of doxygen built-in
+# source browser. The htags tool is part of GNU's global source tagging system
+# (see http://www.gnu.org/software/global/global.html). You will need version
+# 4.8.6 or higher.
+#
+# To use it do the following:
+# - Install the latest version of global
+# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
+# - Make sure the INPUT points to the root of the source tree
+# - Run doxygen as normal
+#
+# Doxygen will invoke htags (and that will in turn invoke gtags), so these
+# tools must be available from the command line (i.e. in the search path).
+#
+# The result: instead of the source browser generated by doxygen, the links to
+# source code will now point to the output of htags.
+# The default value is: NO.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
+# verbatim copy of the header file for each class for which an include is
+# specified. Set to NO to disable this.
+# See also: Section \class.
+# The default value is: YES.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX     = YES
+
+# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
+# which the alphabetical index list will be split.
+# Minimum value: 1, maximum value: 20, default value: 5.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all classes will
+# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# while generating the index headers.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES doxygen will generate HTML output
+# The default value is: YES.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
+# generated HTML page (for example: .htm, .php, .asp).
+# The default value is: .html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify an additional user-
+# defined cascading style sheet that is included after the standard style sheets
+# created by doxygen. Using this option one can overrule certain style aspects.
+# This is preferred over using HTML_STYLESHEET since it does not replace the
+# standard style sheet and is therefor more robust against future updates.
+# Doxygen will copy the style sheet file to the output directory. For an example
+# see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_STYLESHEET  =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
+# will adjust the colors in the stylesheet and background images according to
+# this color. Hue is specified as an angle on a colorwheel, see
+# http://en.wikipedia.org/wiki/Hue for more information. For instance the value
+# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
+# purple, and 360 is red again.
+# Minimum value: 0, maximum value: 359, default value: 220.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_HUE    = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
+# luminance component of the colors in the HTML output. Values below 100
+# gradually make the output lighter, whereas values above 100 make the output
+# darker. The value divided by 100 is the actual gamma applied, so 80 represents
+# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
+# change the gamma.
+# Minimum value: 40, maximum value: 240, default value: 80.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP         = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
+# shown in the various tree structured indices initially; the user can expand
+# and collapse entries dynamically later on. Doxygen will expand the tree to
+# such a level that at most the specified number of entries are visible (unless
+# a fully collapsed tree already exceeds this amount). So setting the number of
+# entries 1 will produce a full collapsed tree by default. 0 is a special value
+# representing an infinite number of entries and will result in a full expanded
+# tree by default.
+# Minimum value: 0, maximum value: 9999, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files will be
+# generated that can be used as input for Apple's Xcode 3 integrated development
+# environment (see: http://developer.apple.com/tools/xcode/), introduced with
+# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# Makefile in the HTML output directory. Running make will produce the docset in
+# that directory and running make install will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
+# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_DOCSET        = NO
+
+# This tag determines the name of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# The default value is: Doxygen generated docs.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# This tag specifies a string that should uniquely identify the documentation
+# set bundle. This should be a reverse domain-name style string, e.g.
+# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+# The default value is: org.doxygen.Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
+# The default value is: Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
+# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
+# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
+# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# Windows.
+#
+# The HTML Help Workshop contains a compiler that can convert all HTML output
+# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
+# files are now used as the Windows 98 help format, and will replace the old
+# Windows help format (.hlp) on all Windows platforms in the future. Compressed
+# HTML files also contain an index, a table of contents, and you can search for
+# words in the documentation. The HTML workshop also contains a viewer for
+# compressed HTML files.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_HTMLHELP      = NO
+
+# The CHM_FILE tag can be used to specify the file name of the resulting .chm
+# file. You can add a path in front of the file if the result should not be
+# written to the html output directory.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_FILE               =
+
+# The HHC_LOCATION tag can be used to specify the location (absolute path
+# including file name) of the HTML help compiler ( hhc.exe). If non-empty
+# doxygen will try to run the HTML help compiler on the generated index.hhp.
+# The file has to be specified with full path.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+HHC_LOCATION           =
+
+# The GENERATE_CHI flag controls if a separate .chi index file is generated (
+# YES) or that it should be included in the master .chm file ( NO).
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+GENERATE_CHI           = NO
+
+# The CHM_INDEX_ENCODING is used to encode HtmlHelp index ( hhk), content ( hhc)
+# and project file content.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_INDEX_ENCODING     =
+
+# The BINARY_TOC flag controls whether a binary table of contents is generated (
+# YES) or a normal table of contents ( NO) in the .chm file.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members to
+# the table of contents of the HTML help documentation and to the tree view.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
+# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
+# (.qch) of the generated HTML documentation.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
+# the file name of the resulting .qch file. The path specified is relative to
+# the HTML output folder.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
+# Project output. For more information please see Qt Help Project / Namespace
+# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_NAMESPACE          = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
+# Help Project output. For more information please see Qt Help Project / Virtual
+# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
+# folders).
+# The default value is: doc.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
+# filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's filter section matches. Qt Help Project / Filter Attributes (see:
+# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# The QHG_LOCATION tag can be used to specify the location of Qt's
+# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
+# generated .qhp file.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
+# generated, together with the HTML files, they form an Eclipse help plugin. To
+# install this plugin and make it available under the help contents menu in
+# Eclipse, the contents of the directory containing the HTML and XML files needs
+# to be copied into the plugins directory of eclipse. The name of the directory
+# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
+# After copying Eclipse needs to be restarted before the help appears.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the Eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have this
+# name. Each documentation set should have its own identifier.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# If you want full control over the layout of the generated HTML pages it might
+# be necessary to disable the index and replace it with your own. The
+# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
+# of each HTML page. A value of NO enables the index and the value YES disables
+# it. Since the tabs in the index contain the same information as the navigation
+# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+DISABLE_INDEX          = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information. If the tag
+# value is set to YES, a side panel will be generated containing a tree-like
+# index structure (just like the one that is generated for HTML Help). For this
+# to work a browser that supports JavaScript, DHTML, CSS and frames is required
+# (i.e. any modern browser). Windows users are probably better off using the
+# HTML help feature. Via custom stylesheets (see HTML_EXTRA_STYLESHEET) one can
+# further fine-tune the look of the index. As an example, the default style
+# sheet generated by doxygen has an example that shows how to put an image at
+# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
+# the same information as the tab index, you could consider setting
+# DISABLE_INDEX to YES when enabling this option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_TREEVIEW      = NO
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
+# doxygen will group on one line in the generated HTML documentation.
+#
+# Note that a value of 0 will completely suppress the enum values from appearing
+# in the overview section.
+# Minimum value: 0, maximum value: 20, default value: 4.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
+# to set the initial width (in pixels) of the frame in which the tree is shown.
+# Minimum value: 0, maximum value: 1500, default value: 250.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+TREEVIEW_WIDTH         = 250
+
+# When the EXT_LINKS_IN_WINDOW option is set to YES doxygen will open links to
+# external symbols imported via tag files in a separate window.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# Use this tag to change the font size of LaTeX formulas included as images in
+# the HTML documentation. When you change the font size after a successful
+# doxygen run you need to manually remove any form_*.png images from the HTML
+# output directory to force them to be regenerated.
+# Minimum value: 8, maximum value: 50, default value: 10.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are not
+# supported properly for IE 6.0, but are supported on all modern browsers.
+#
+# Note that when changing this option you need to delete any form_*.png files in
+# the HTML output directory before the changes have effect.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_TRANSPARENT    = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
+# http://www.mathjax.org) which uses client side Javascript for the rendering
+# instead of using prerendered bitmaps. Use this if you do not have LaTeX
+# installed or if you want to formulas look prettier in the HTML output. When
+# enabled you may also need to install MathJax separately and configure the path
+# to it using the MATHJAX_RELPATH option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. See the MathJax site (see:
+# http://docs.mathjax.org/en/latest/output.html) for more details.
+# Possible values are: HTML-CSS (which is slower, but has the best
+# compatibility), NativeMML (i.e. MathML) and SVG.
+# The default value is: HTML-CSS.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_FORMAT         = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from http://www.mathjax.org before deployment.
+# The default value is: http://cdn.mathjax.org/mathjax/latest.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
+# extension names that should be enabled during MathJax rendering. For example
+# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_EXTENSIONS     =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
+# of code that will be used on startup of the MathJax code. See the MathJax site
+# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# example see the documentation.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_CODEFILE       =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
+# the HTML output. The underlying search engine uses javascript and DHTML and
+# should work on any modern browser. Note that when using HTML help
+# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
+# there is already a search function so this one should typically be disabled.
+# For large projects the javascript based search engine can be slow, then
+# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
+# search using the keyboard; to jump to the search box use <access key> + S
+# (what the <access key> is depends on the OS and browser, but it is typically
+# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
+# key> to jump into the search results window, the results can be navigated
+# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
+# the search. The filter options can be selected when the cursor is inside the
+# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
+# to select a filter and <Enter> or <escape> to activate or cancel the filter
+# option.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+SEARCHENGINE           = NO
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using Javascript. There
+# are two flavours of web server based searching depending on the
+# EXTERNAL_SEARCH setting. When disabled, doxygen will generate a PHP script for
+# searching and an index file used by the script. When EXTERNAL_SEARCH is
+# enabled the indexing and searching needs to be provided by external tools. See
+# the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SERVER_BASED_SEARCH    = NO
+
+# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
+# search results.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/).
+#
+# See the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will return the search results when EXTERNAL_SEARCH is enabled.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/). See the section "External Indexing and
+# Searching" for details.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHENGINE_URL       =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+# The default file is: searchdata.xml.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHDATA_FILE        = searchdata.xml
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH_ID     =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
+# to a relative location where the documentation can be found. The format is:
+# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTRA_SEARCH_MAPPINGS  =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES doxygen will generate LaTeX output.
+# The default value is: YES.
+
+GENERATE_LATEX         = NO
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked.
+#
+# Note that when enabling USE_PDFLATEX this option is only used for generating
+# bitmaps for formulas in the HTML output, but not in the Makefile that is
+# written to the output directory.
+# The default file is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
+# index for LaTeX.
+# The default file is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES doxygen generates more compact LaTeX
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE             = a4
+
+# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
+# that should be included in the LaTeX output. To get the times font for
+# instance you can specify
+# EXTRA_PACKAGES=times
+# If left blank no extra packages will be included.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
+# generated LaTeX document. The header should contain everything until the first
+# chapter. If it is left blank doxygen will generate a standard header. See
+# section "Doxygen usage" for information on how to let doxygen write the
+# default header to a separate file.
+#
+# Note: Only use a user-defined header if you know what you are doing! The
+# following commands have a special meaning inside the header: $title,
+# $datetime, $date, $doxygenversion, $projectname, $projectnumber. Doxygen will
+# replace them by respectively the title of the page, the current date and time,
+# only the current date, the version number of doxygen, the project name (see
+# PROJECT_NAME), or the project number (see PROJECT_NUMBER).
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
+# generated LaTeX document. The footer should contain everything after the last
+# chapter. If it is left blank doxygen will generate a standard footer.
+#
+# Note: Only use a user-defined footer if you know what you are doing!
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_FOOTER           =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the LATEX_OUTPUT output
+# directory. Note that the files will be copied as-is; there are no commands or
+# markers available.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_FILES      =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
+# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
+# contain links (just like the HTML output) instead of page references. This
+# makes the output suitable for online browsing using a PDF viewer.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PDF_HYPERLINKS         = YES
+
+# If the LATEX_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
+# the PDF file directly from the LaTeX files. Set this option to YES to get a
+# higher quality PDF documentation.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
+# command to the generated LaTeX files. This will instruct LaTeX to keep running
+# if errors occur, instead of asking the user for help. This option is also used
+# when generating formulas in HTML.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BATCHMODE        = NO
+
+# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
+# index chapters (such as File Index, Compound Index, etc.) in the output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HIDE_INDICES     = NO
+
+# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
+# code with syntax highlighting in the LaTeX output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_SOURCE_CODE      = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. See
+# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# The default value is: plain.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BIB_STYLE        = plain
+
+#---------------------------------------------------------------------------
+# Configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES doxygen will generate RTF output. The
+# RTF output is optimized for Word 97 and may not look too pretty with other RTF
+# readers/editors.
+# The default value is: NO.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: rtf.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES doxygen generates more compact RTF
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
+# contain hyperlink fields. The RTF file will contain links (just like the HTML
+# output) instead of page references. This makes the output suitable for online
+# browsing using Word or some other Word compatible readers that support those
+# fields.
+#
+# Note: WordPad (write) and others do not support links.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's config
+# file, i.e. a series of assignments. You only have to provide replacements,
+# missing definitions are set to their default value.
+#
+# See also section "Doxygen usage" for information on how to generate the
+# default style sheet that doxygen normally uses.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an RTF document. Syntax is
+# similar to doxygen's config file. A template extensions file can be generated
+# using doxygen -e rtf extensionFile.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_EXTENSIONS_FILE    =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it. A directory man3 will be created inside the directory specified by
+# MAN_OUTPUT.
+# The default directory is: man.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to the generated
+# man pages. In case the manual section does not start with a number, the number
+# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
+# optional.
+# The default value is: .3.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_EXTENSION          = .3
+
+# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
+# will generate one additional man file for each entity documented in the real
+# man page(s). These additional files only source the real man page, but without
+# them the man command would be unable to find the correct page.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES doxygen will generate an XML file that
+# captures the structure of the code including all documentation.
+# The default value is: NO.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: xml.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_OUTPUT             = xml
+
+# The XML_SCHEMA tag can be used to specify a XML schema, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_SCHEMA             =
+
+# The XML_DTD tag can be used to specify a XML DTD, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_DTD                =
+
+# If the XML_PROGRAMLISTING tag is set to YES doxygen will dump the program
+# listings (including syntax highlighting and cross-referencing information) to
+# the XML output. Note that enabling this will significantly increase the size
+# of the XML output.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES doxygen will generate Docbook files
+# that can be used to generate PDF.
+# The default value is: NO.
+
+GENERATE_DOCBOOK       = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it.
+# The default directory is: docbook.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_OUTPUT         = docbook
+
+#---------------------------------------------------------------------------
+# Configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES doxygen will generate an AutoGen
+# Definitions (see http://autogen.sf.net) file that captures the structure of
+# the code including all documentation. Note that this feature is still
+# experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES doxygen will generate a Perl module
+# file that captures the structure of the code including all documentation.
+#
+# Note that this feature is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES doxygen will generate the necessary
+# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
+# output from the Perl module output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be nicely
+# formatted so it can be parsed by a human reader. This is useful if you want to
+# understand what is going on. On the other hand, if this tag is set to NO the
+# size of the Perl module output will be much smaller and Perl will parse it
+# just the same.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file are
+# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
+# so different doxyrules.make files included by the same Makefile don't
+# overwrite each other's variables.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES doxygen will evaluate all
+# C-preprocessor directives found in the sources and include files.
+# The default value is: YES.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES doxygen will expand all macro names
+# in the source code. If set to NO only conditional compilation will be
+# performed. Macro expansion can be done in a controlled way by setting
+# EXPAND_ONLY_PREDEF to YES.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+MACRO_EXPANSION        = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_ONLY_PREDEF     = NO
+
+# If the SEARCH_INCLUDES tag is set to YES the includes files in the
+# INCLUDE_PATH will be searched if a #include is found.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SEARCH_INCLUDES        = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by the
+# preprocessor.
+# This tag requires that the tag SEARCH_INCLUDES is set to YES.
+
+INCLUDE_PATH           =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will be
+# used.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+INCLUDE_FILE_PATTERNS  =
+
+# The PREDEFINED tag can be used to specify one or more macro names that are
+# defined before the preprocessor is started (similar to the -D option of e.g.
+# gcc). The argument of the tag is a list of macros of the form: name or
+# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
+# is assumed. To prevent a macro definition from being undefined via #undef or
+# recursively expanded use the := operator instead of the = operator.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+PREDEFINED             =
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
+# tag can be used to specify a list of macro names that should be expanded. The
+# macro definition that is found in the sources will be used. Use the PREDEFINED
+# tag if you want to use a different macro definition that overrules the
+# definition found in the source code.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_AS_DEFINED      =
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
+# remove all refrences to function-like macros that are alone on a line, have an
+# all uppercase name, and do not end with a semicolon. Such function macros are
+# typically used for boiler-plate code, and will confuse the parser if not
+# removed.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SKIP_FUNCTION_MACROS   = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES tag can be used to specify one or more tag files. For each tag
+# file the location of the external documentation should be added. The format of
+# a tag file without this location is as follows:
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where loc1 and loc2 can be relative or absolute paths or URLs. See the
+# section "Linking to external documentation" for more information about the use
+# of tag files.
+# Note: Each tag file must have an unique name (where the name does NOT include
+# the path). If a tag file is not located in the directory in which doxygen is
+# run, you must also specify the path to the tagfile here.
+
+TAGFILES               =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create a
+# tag file that is based on the input files it reads. See section "Linking to
+# external documentation" for more information about the usage of tag files.
+
+GENERATE_TAGFILE       =
+
+# If the ALLEXTERNALS tag is set to YES all external class will be listed in the
+# class index. If set to NO only the inherited external classes will be listed.
+# The default value is: NO.
+
+ALLEXTERNALS           = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed in
+# the modules index. If set to NO, only the current project's groups will be
+# listed.
+# The default value is: YES.
+
+EXTERNAL_GROUPS        = YES
+
+# If the EXTERNAL_PAGES tag is set to YES all external pages will be listed in
+# the related pages index. If set to NO, only the current project's pages will
+# be listed.
+# The default value is: YES.
+
+EXTERNAL_PAGES         = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script
+# interpreter (i.e. the result of 'which perl').
+# The default file (with absolute path) is: /usr/bin/perl.
+
+PERL_PATH              = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES doxygen will generate a class diagram
+# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
+# NO turns the diagrams off. Note that this option also works with HAVE_DOT
+# disabled, but it is recommended to install and use dot, since it yields more
+# powerful graphs.
+# The default value is: YES.
+
+CLASS_DIAGRAMS         = YES
+
+# You can define message sequence charts within doxygen comments using the \msc
+# command. Doxygen will then run the mscgen tool (see:
+# http://www.mcternan.me.uk/mscgen/)) to produce the chart and insert it in the
+# documentation. The MSCGEN_PATH tag allows you to specify the directory where
+# the mscgen tool resides. If left empty the tool is assumed to be found in the
+# default search path.
+
+MSCGEN_PATH            =
+
+# You can include diagrams made with dia in doxygen documentation. Doxygen will
+# then run dia to produce the diagram and insert it in the documentation. The
+# DIA_PATH tag allows you to specify the directory where the dia binary resides.
+# If left empty dia is assumed to be found in the default search path.
+
+DIA_PATH               =
+
+# If set to YES, the inheritance and collaboration graphs will hide inheritance
+# and usage relations if the target is undocumented or is not a class.
+# The default value is: YES.
+
+HIDE_UNDOC_RELATIONS   = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz (see:
+# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
+# Bell Labs. The other options in this section have no effect if this option is
+# set to NO
+# The default value is: NO.
+
+HAVE_DOT               = NO
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
+# to run in parallel. When set to 0 doxygen will base this on the number of
+# processors available in the system. You can set it explicitly to a value
+# larger than 0 to get control over the balance between CPU load and processing
+# speed.
+# Minimum value: 0, maximum value: 32, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_NUM_THREADS        = 0
+
+# When you want a differently looking font n the dot files that doxygen
+# generates you can specify the font name using DOT_FONTNAME. You need to make
+# sure dot is able to find the font, which can be done by putting it in a
+# standard location or by setting the DOTFONTPATH environment variable or by
+# setting DOT_FONTPATH to the directory containing the font.
+# The default value is: Helvetica.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTNAME           = Helvetica
+
+# The DOT_FONTSIZE tag can be used to set the size (in points) of the font of
+# dot graphs.
+# Minimum value: 4, maximum value: 24, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTSIZE           = 10
+
+# By default doxygen will tell dot to use the default font as specified with
+# DOT_FONTNAME. If you specify a different font using DOT_FONTNAME you can set
+# the path where dot can find it using this tag.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTPATH           =
+
+# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
+# each documented class showing the direct and indirect inheritance relations.
+# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CLASS_GRAPH            = YES
+
+# If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
+# graph for each documented class showing the direct and indirect implementation
+# dependencies (inheritance, containment, and class references variables) of the
+# class with other documented classes.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
+# groups, showing the direct groups dependencies.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LOOK               = NO
+
+# If the UML_LOOK tag is enabled, the fields and methods are shown inside the
+# class node. If there are many fields or methods and many nodes the graph may
+# become too big to be useful. The UML_LIMIT_NUM_FIELDS threshold limits the
+# number of items for each type to make the size more manageable. Set this to 0
+# for no limit. Note that the threshold may be exceeded by 50% before the limit
+# is enforced. So when you set the threshold to 10, up to 15 fields may appear,
+# but if the number exceeds 15, the total amount of fields shown is limited to
+# 10.
+# Minimum value: 0, maximum value: 100, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LIMIT_NUM_FIELDS   = 10
+
+# If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
+# collaboration graphs will show the relations between templates and their
+# instances.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+TEMPLATE_RELATIONS     = NO
+
+# If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
+# YES then doxygen will generate a graph for each documented file showing the
+# direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDE_GRAPH          = YES
+
+# If the INCLUDED_BY_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are
+# set to YES then doxygen will generate a graph for each documented file showing
+# the direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDED_BY_GRAPH      = YES
+
+# If the CALL_GRAPH tag is set to YES then doxygen will generate a call
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable call graphs for selected
+# functions only using the \callgraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALL_GRAPH             = NO
+
+# If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable caller graphs for selected
+# functions only using the \callergraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALLER_GRAPH           = NO
+
+# If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical
+# hierarchy of all classes instead of a textual one.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GRAPHICAL_HIERARCHY    = YES
+
+# If the DIRECTORY_GRAPH tag is set to YES then doxygen will show the
+# dependencies a directory has on other directories in a graphical way. The
+# dependency relations are determined by the #include relations between the
+# files in the directories.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DIRECTORY_GRAPH        = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot.
+# Note: If you choose svg you need to set HTML_FILE_EXTENSION to xhtml in order
+# to make the SVG files visible in IE 9+ (other browsers do not have this
+# requirement).
+# Possible values are: png, jpg, gif and svg.
+# The default value is: png.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_IMAGE_FORMAT       = png
+
+# If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
+# enable generation of interactive SVG images that allow zooming and panning.
+#
+# Note that this requires a modern browser other than Internet Explorer. Tested
+# and working are Firefox, Chrome, Safari, and Opera.
+# Note: For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make
+# the SVG files visible. Older versions of IE do not have SVG support.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INTERACTIVE_SVG        = NO
+
+# The DOT_PATH tag can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_PATH               =
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
+# contain dot files that are included in the documentation (see the \dotfile
+# command).
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOTFILE_DIRS           =
+
+# The MSCFILE_DIRS tag can be used to specify one or more directories that
+# contain msc files that are included in the documentation (see the \mscfile
+# command).
+
+MSCFILE_DIRS           =
+
+# The DIAFILE_DIRS tag can be used to specify one or more directories that
+# contain dia files that are included in the documentation (see the \diafile
+# command).
+
+DIAFILE_DIRS           =
+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
+# that will be shown in the graph. If the number of nodes in a graph becomes
+# larger than this value, doxygen will truncate the graph, which is visualized
+# by representing a node as a red box. Note that doxygen if the number of direct
+# children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that
+# the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
+# Minimum value: 0, maximum value: 10000, default value: 50.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_GRAPH_MAX_NODES    = 50
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the graphs
+# generated by dot. A depth value of 3 means that only nodes reachable from the
+# root by following a path via at most 3 edges will be shown. Nodes that lay
+# further from the root node will be omitted. Note that setting this option to 1
+# or 2 may greatly reduce the computation time needed for large code bases. Also
+# note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+# Minimum value: 0, maximum value: 1000, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+MAX_DOT_GRAPH_DEPTH    = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not seem
+# to support this out of the box.
+#
+# Warning: Depending on the platform used, enabling this option may lead to
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to
+# read).
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_TRANSPARENT        = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10) support
+# this, this feature is disabled by default.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_MULTI_TARGETS      = YES
+
+# If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
+# explaining the meaning of the various boxes and arrows in the dot generated
+# graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GENERATE_LEGEND        = YES
+
+# If the DOT_CLEANUP tag is set to YES doxygen will remove the intermediate dot
+# files that are used to generate the various graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_CLEANUP            = YES
diff --git a/media/libaaudio/Doxyfile.orig b/media/libaaudio/Doxyfile.orig
new file mode 100644
index 0000000..137facb
--- /dev/null
+++ b/media/libaaudio/Doxyfile.orig
@@ -0,0 +1,2303 @@
+# Doxyfile 1.8.6
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+#
+# All text after a double hash (##) is considered a comment and is placed in
+# front of the TAG it is preceding.
+#
+# All text after a single hash (#) is considered a comment and will be ignored.
+# The format is:
+# TAG = value [value, ...]
+# For lists, items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (\" \").
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the config file
+# that follow. The default is UTF-8 which is also the encoding used for all text
+# before the first occurrence of this tag. Doxygen uses libiconv (or the iconv
+# built into libc) for the transcoding. See http://www.gnu.org/software/libiconv
+# for the list of possible encodings.
+# The default value is: UTF-8.
+
+DOXYFILE_ENCODING      = UTF-8
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by
+# double-quotes, unless you are using Doxywizard) that should identify the
+# project for which the documentation is generated. This name is used in the
+# title of most generated pages and in a few other places.
+# The default value is: My Project.
+
+PROJECT_NAME           = "My Project"
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. This
+# could be handy for archiving the generated documentation or if some version
+# control system is used.
+
+PROJECT_NUMBER         =
+
+# Using the PROJECT_BRIEF tag one can provide an optional one line description
+# for a project that appears at the top of each page and should give viewer a
+# quick idea about the purpose of the project. Keep the description short.
+
+PROJECT_BRIEF          =
+
+# With the PROJECT_LOGO tag one can specify an logo or icon that is included in
+# the documentation. The maximum height of the logo should not exceed 55 pixels
+# and the maximum width should not exceed 200 pixels. Doxygen will copy the logo
+# to the output directory.
+
+PROJECT_LOGO           =
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
+# into which the generated documentation will be written. If a relative path is
+# entered, it will be relative to the location where doxygen was started. If
+# left blank the current directory will be used.
+
+OUTPUT_DIRECTORY       =
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 4096 sub-
+# directories (in 2 levels) under the output directory of each output format and
+# will distribute the generated files over these directories. Enabling this
+# option can be useful when feeding doxygen a huge amount of source files, where
+# putting all generated files in the same directory would otherwise causes
+# performance problems for the file system.
+# The default value is: NO.
+
+CREATE_SUBDIRS         = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
+# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
+# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
+# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
+# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
+# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
+# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
+# Ukrainian and Vietnamese.
+# The default value is: English.
+
+OUTPUT_LANGUAGE        = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES doxygen will include brief member
+# descriptions after the members that are listed in the file and class
+# documentation (similar to Javadoc). Set to NO to disable this.
+# The default value is: YES.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES doxygen will prepend the brief
+# description of a member or function before the detailed description
+#
+# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+# The default value is: YES.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator that is
+# used to form the text in various listings. Each string in this list, if found
+# as the leading text of the brief description, will be stripped from the text
+# and the result, after processing the whole list, is used as the annotated
+# text. Otherwise, the brief description is used as-is. If left blank, the
+# following values are used ($name is automatically replaced with the name of
+# the entity):The $name class, The $name widget, The $name file, is, provides,
+# specifies, contains, represents, a, an and the.
+
+ABBREVIATE_BRIEF       =
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# doxygen will generate a detailed section even if there is only a brief
+# description.
+# The default value is: NO.
+
+ALWAYS_DETAILED_SEC    = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+# The default value is: NO.
+
+INLINE_INHERITED_MEMB  = NO
+
+# If the FULL_PATH_NAMES tag is set to YES doxygen will prepend the full path
+# before files name in the file list and in the header files. If set to NO the
+# shortest path that makes the file name unique will be used
+# The default value is: YES.
+
+FULL_PATH_NAMES        = YES
+
+# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path.
+# Stripping is only done if one of the specified strings matches the left-hand
+# part of the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the path to
+# strip.
+#
+# Note that you can specify absolute paths here, but also relative paths, which
+# will be relative from the directory where doxygen is started.
+# This tag requires that the tag FULL_PATH_NAMES is set to YES.
+
+STRIP_FROM_PATH        =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
+# path mentioned in the documentation of a class, which tells the reader which
+# header file to include in order to use a class. If left blank only the name of
+# the header file containing the class definition is used. Otherwise one should
+# specify the list of include paths that are normally passed to the compiler
+# using the -I flag.
+
+STRIP_FROM_INC_PATH    =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
+# less readable) file names. This can be useful is your file systems doesn't
+# support long names like on DOS, Mac, or CD-ROM.
+# The default value is: NO.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
+# first line (until the first dot) of a Javadoc-style comment as the brief
+# description. If set to NO, the Javadoc-style will behave just like regular Qt-
+# style comments (thus requiring an explicit @brief command for a brief
+# description.)
+# The default value is: NO.
+
+JAVADOC_AUTOBRIEF      = NO
+
+# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
+# line (until the first dot) of a Qt-style comment as the brief description. If
+# set to NO, the Qt-style will behave just like regular Qt-style comments (thus
+# requiring an explicit \brief command for a brief description.)
+# The default value is: NO.
+
+QT_AUTOBRIEF           = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a
+# multi-line C++ special comment block (i.e. a block of //! or /// comments) as
+# a brief description. This used to be the default behavior. The new default is
+# to treat a multi-line C++ comment block as a detailed description. Set this
+# tag to YES if you prefer the old behavior instead.
+#
+# Note that setting this tag to YES also means that rational rose comments are
+# not recognized any more.
+# The default value is: NO.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
+# documentation from any documented member that it re-implements.
+# The default value is: YES.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce a
+# new page for each member. If set to NO, the documentation of a member will be
+# part of the file/class/namespace that contains it.
+# The default value is: NO.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
+# uses this value to replace tabs by spaces in code fragments.
+# Minimum value: 1, maximum value: 16, default value: 4.
+
+TAB_SIZE               = 4
+
+# This tag can be used to specify a number of aliases that act as commands in
+# the documentation. An alias has the form:
+# name=value
+# For example adding
+# "sideeffect=@par Side Effects:\n"
+# will allow you to put the command \sideeffect (or @sideeffect) in the
+# documentation, which will result in a user-defined paragraph with heading
+# "Side Effects:". You can put \n's in the value part of an alias to insert
+# newlines.
+
+ALIASES                =
+
+# This tag can be used to specify a number of word-keyword mappings (TCL only).
+# A mapping has the form "name=value". For example adding "class=itcl::class"
+# will allow you to use the command class in the itcl::class meaning.
+
+TCL_SUBST              =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C. For
+# instance, some of the names that are used will be different. The list of all
+# members will be omitted, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_FOR_C  = NO
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or
+# Python sources only. Doxygen will then generate output that is more tailored
+# for that language. For instance, namespaces will be presented as packages,
+# qualified scopes will look different, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources. Doxygen will then generate output that is tailored for Fortran.
+# The default value is: NO.
+
+OPTIMIZE_FOR_FORTRAN   = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for VHDL.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_VHDL   = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it
+# parses. With this tag you can assign which parser to use for a given
+# extension. Doxygen has a built-in mapping, but you can override or extend it
+# using this tag. The format is ext=language, where ext is a file extension, and
+# language is one of the parsers supported by doxygen: IDL, Java, Javascript,
+# C#, C, C++, D, PHP, Objective-C, Python, Fortran, VHDL. For instance to make
+# doxygen treat .inc files as Fortran files (default is PHP), and .f files as C
+# (default is Fortran), use: inc=Fortran f=C.
+#
+# Note For files without extension you can use no_extension as a placeholder.
+#
+# Note that for custom extensions you also need to set FILE_PATTERNS otherwise
+# the files are not read by doxygen.
+
+EXTENSION_MAPPING      =
+
+# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
+# according to the Markdown format, which allows for more readable
+# documentation. See http://daringfireball.net/projects/markdown/ for details.
+# The output of markdown processing is further processed by doxygen, so you can
+# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
+# case of backward compatibilities issues.
+# The default value is: YES.
+
+MARKDOWN_SUPPORT       = YES
+
+# When enabled doxygen tries to link words that correspond to documented
+# classes, or namespaces to their corresponding documentation. Such a link can
+# be prevented in individual cases by by putting a % sign in front of the word
+# or globally by setting AUTOLINK_SUPPORT to NO.
+# The default value is: YES.
+
+AUTOLINK_SUPPORT       = YES
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should set this
+# tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string);
+# versus func(std::string) {}). This also make the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+# The default value is: NO.
+
+BUILTIN_STL_SUPPORT    = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+# The default value is: NO.
+
+CPP_CLI_SUPPORT        = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
+# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen
+# will parse them like normal C++ but will assume all classes use public instead
+# of private inheritance when no explicit protection keyword is present.
+# The default value is: NO.
+
+SIP_SUPPORT            = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate
+# getter and setter methods for a property. Setting this option to YES will make
+# doxygen to replace the get and set methods by a property in the documentation.
+# This will only work if the methods are indeed getting or setting a simple
+# type. If this is not the case, or you want to show the methods anyway, you
+# should set this option to NO.
+# The default value is: YES.
+
+IDL_PROPERTY_SUPPORT   = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES, then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+# The default value is: NO.
+
+DISTRIBUTE_GROUP_DOC   = NO
+
+# Set the SUBGROUPING tag to YES to allow class member groups of the same type
+# (for instance a group of public functions) to be put as a subgroup of that
+# type (e.g. under the Public Functions section). Set it to NO to prevent
+# subgrouping. Alternatively, this can be done per class using the
+# \nosubgrouping command.
+# The default value is: YES.
+
+SUBGROUPING            = YES
+
+# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions
+# are shown inside the group in which they are included (e.g. using \ingroup)
+# instead of on a separate page (for HTML and Man pages) or section (for LaTeX
+# and RTF).
+#
+# Note that this feature does not work in combination with
+# SEPARATE_MEMBER_PAGES.
+# The default value is: NO.
+
+INLINE_GROUPED_CLASSES = NO
+
+# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions
+# with only public data fields or simple typedef fields will be shown inline in
+# the documentation of the scope in which they are defined (i.e. file,
+# namespace, or group documentation), provided this scope is documented. If set
+# to NO, structs, classes, and unions are shown on a separate page (for HTML and
+# Man pages) or section (for LaTeX and RTF).
+# The default value is: NO.
+
+INLINE_SIMPLE_STRUCTS  = NO
+
+# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or
+# enum is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
+# namespace, or class. And the struct will be named TypeS. This can typically be
+# useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+# The default value is: NO.
+
+TYPEDEF_HIDES_STRUCT   = NO
+
+# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
+# cache is used to resolve symbols given their name and scope. Since this can be
+# an expensive process and often the same symbol appears multiple times in the
+# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small
+# doxygen will become slower. If the cache is too large, memory is wasted. The
+# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range
+# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536
+# symbols. At the end of a run doxygen will report the cache usage and suggest
+# the optimal cache size from a speed point of view.
+# Minimum value: 0, maximum value: 9, default value: 0.
+
+LOOKUP_CACHE_SIZE      = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
+# documentation are documented, even if no documentation was available. Private
+# class members and static file members will be hidden unless the
+# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
+# Note: This will also disable the warnings about undocumented members that are
+# normally produced when WARNINGS is set to YES.
+# The default value is: NO.
+
+EXTRACT_ALL            = NO
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE        = NO
+
+# If the EXTRACT_PACKAGE tag is set to YES all members with package or internal
+# scope will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PACKAGE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file will be
+# included in the documentation.
+# The default value is: NO.
+
+EXTRACT_STATIC         = NO
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) defined
+# locally in source files will be included in the documentation. If set to NO
+# only classes defined in header files are included. Does not have any effect
+# for Java sources.
+# The default value is: YES.
+
+EXTRACT_LOCAL_CLASSES  = YES
+
+# This flag is only useful for Objective-C code. When set to YES local methods,
+# which are defined in the implementation section but not in the interface are
+# included in the documentation. If set to NO only methods in the interface are
+# included.
+# The default value is: NO.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base name of
+# the file that contains the anonymous namespace. By default anonymous namespace
+# are hidden.
+# The default value is: NO.
+
+EXTRACT_ANON_NSPACES   = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
+# undocumented members inside documented classes or files. If set to NO these
+# members will be included in the various overviews, but no documentation
+# section is generated. This option has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_MEMBERS     = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy. If set
+# to NO these classes will be included in the various overviews. This option has
+# no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_CLASSES     = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
+# (class|struct|union) declarations. If set to NO these declarations will be
+# included in the documentation.
+# The default value is: NO.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
+# documentation blocks found inside the body of a function. If set to NO these
+# blocks will be appended to the function's detailed documentation block.
+# The default value is: NO.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation that is typed after a
+# \internal command is included. If the tag is set to NO then the documentation
+# will be excluded. Set it to YES to include the internal documentation.
+# The default value is: NO.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
+# their full class and namespace scopes in the documentation. If set to YES the
+# scope will be hidden.
+# The default value is: NO.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
+# the files that are included by a file in the documentation of that file.
+# The default value is: YES.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
+# grouped member an include statement to the documentation, telling the reader
+# which file to include in order to use the member.
+# The default value is: NO.
+
+SHOW_GROUPED_MEMB_INC  = NO
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
+# files with double quotes in the documentation rather than with sharp brackets.
+# The default value is: NO.
+
+FORCE_LOCAL_INCLUDES   = NO
+
+# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
+# documentation for inline members.
+# The default value is: YES.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
+# (detailed) documentation of file and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order.
+# The default value is: YES.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
+# descriptions of file, namespace and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order. Note that
+# this will also influence the order of the classes in the class list.
+# The default value is: NO.
+
+SORT_BRIEF_DOCS        = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
+# (brief and detailed) documentation of class members so that constructors and
+# destructors are listed first. If set to NO the constructors will appear in the
+# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
+# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
+# member documentation.
+# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
+# detailed member documentation.
+# The default value is: NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
+# of group names into alphabetical order. If set to NO the group names will
+# appear in their defined order.
+# The default value is: NO.
+
+SORT_GROUP_NAMES       = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
+# fully-qualified names, including namespaces. If set to NO, the class list will
+# be sorted only by class name, not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the alphabetical
+# list.
+# The default value is: NO.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
+# type resolution of all parameters of a function it will reject a match between
+# the prototype and the implementation of a member function even if there is
+# only one candidate or it is obvious which candidate to choose by doing a
+# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
+# accept a match between prototype and implementation in such cases.
+# The default value is: NO.
+
+STRICT_PROTO_MATCHING  = NO
+
+# The GENERATE_TODOLIST tag can be used to enable ( YES) or disable ( NO) the
+# todo list. This list is created by putting \todo commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable ( YES) or disable ( NO) the
+# test list. This list is created by putting \test commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable ( YES) or disable ( NO) the bug
+# list. This list is created by putting \bug commands in the documentation.
+# The default value is: YES.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable ( YES) or disable ( NO)
+# the deprecated list. This list is created by putting \deprecated commands in
+# the documentation.
+# The default value is: YES.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
+# initial value of a variable or macro / define can have for it to appear in the
+# documentation. If the initializer consists of more lines than specified here
+# it will be hidden. Use a value of 0 to hide initializers completely. The
+# appearance of the value of individual variables and macros / defines can be
+# controlled using \showinitializer or \hideinitializer command in the
+# documentation regardless of this setting.
+# Minimum value: 0, maximum value: 10000, default value: 30.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
+# the bottom of the documentation of classes and structs. If set to YES the list
+# will mention the files that were used to generate the documentation.
+# The default value is: YES.
+
+SHOW_USED_FILES        = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
+# will remove the Files entry from the Quick Index and from the Folder Tree View
+# (if specified).
+# The default value is: YES.
+
+SHOW_FILES             = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
+# page. This will remove the Namespaces entry from the Quick Index and from the
+# Folder Tree View (if specified).
+# The default value is: YES.
+
+SHOW_NAMESPACES        = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command command input-file, where command is the value of the
+# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
+# by doxygen. Whatever the program writes to standard output is used as the file
+# version. For an example see the documentation.
+
+FILE_VERSION_FILTER    =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option. You can
+# optionally specify a file name after the option, if omitted DoxygenLayout.xml
+# will be used as the name of the layout file.
+#
+# Note that if you run doxygen from a directory containing a file called
+# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
+# tag is left empty.
+
+LAYOUT_FILE            =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
+# the reference definitions. This must be a list of .bib files. The .bib
+# extension is automatically appended if omitted. This requires the bibtex tool
+# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
+# For LaTeX the style of the bibliography can be controlled using
+# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
+# search path. Do not use file names with spaces, bibtex cannot handle them. See
+# also \cite for info how to create references.
+
+CITE_BIB_FILES         =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET                  = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error ( stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS               = YES
+
+# If the WARN_IF_UNDOCUMENTED tag is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: YES.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some parameters
+# in a documented function, or documenting parameters that don't exist or using
+# markup commands wrongly.
+# The default value is: YES.
+
+WARN_IF_DOC_ERROR      = YES
+
+# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
+# are documented, but have no documentation for their parameters or return
+# value. If set to NO doxygen will only warn about wrong or incomplete parameter
+# documentation, but not about the absence of documentation.
+# The default value is: NO.
+
+WARN_NO_PARAMDOC       = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that doxygen
+# can produce. The string should contain the $file, $line, and $text tags, which
+# will be replaced by the file and line number from which the warning originated
+# and the warning text. Optionally the format may contain $version, which will
+# be replaced by the version of the file (if it could be obtained via
+# FILE_VERSION_FILTER)
+# The default value is: $file:$line: $text.
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning and error
+# messages should be written. If left blank the output is written to standard
+# error (stderr).
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces.
+# Note: If this tag is empty the current directory is searched.
+
+INPUT                  =
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
+# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
+# documentation (see: http://www.gnu.org/software/libiconv) for the list of
+# possible encodings.
+# The default value is: UTF-8.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank the
+# following patterns are tested:*.c, *.cc, *.cxx, *.cpp, *.c++, *.java, *.ii,
+# *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, *.hh, *.hxx, *.hpp,
+# *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, *.m, *.markdown,
+# *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf,
+# *.qsf, *.as and *.js.
+
+FILE_PATTERNS          =
+
+# The RECURSIVE tag can be used to specify whether or not subdirectories should
+# be searched for input files as well.
+# The default value is: NO.
+
+RECURSIVE              = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                =
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+# The default value is: NO.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       =
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories use the pattern */test/*
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or directories
+# that contain example code fragments that are included (see the \include
+# command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank all
+# files are included.
+
+EXAMPLE_PATTERNS       =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude commands
+# irrespective of the value of the RECURSIVE tag.
+# The default value is: NO.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or directories
+# that contain images that are to be included in the documentation (see the
+# \image command).
+
+IMAGE_PATH             =
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command:
+#
+# <filter> <input-file>
+#
+# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
+# name of an input file. Doxygen will then use the output that the filter
+# program writes to standard output. If FILTER_PATTERNS is specified, this tag
+# will be ignored.
+#
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis. Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match. The filters are a list of the form: pattern=filter
+# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
+# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
+# patterns match the file name, INPUT_FILTER is applied.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER ) will also be used to filter the input files that are used for
+# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
+# The default value is: NO.
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
+# it is also possible to disable source filtering for a specific pattern using
+# *.ext= (so without naming a filter).
+# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
+
+FILTER_SOURCE_PATTERNS =
+
+# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page
+# (index.html). This can be useful if you have a project on for instance GitHub
+# and want to reuse the introduction page also for the doxygen output.
+
+USE_MDFILE_AS_MAINPAGE =
+
+#---------------------------------------------------------------------------
+# Configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
+# generated. Documented entities will be cross-referenced with these sources.
+#
+# Note: To get rid of all source code in the generated output, make sure that
+# also VERBATIM_HEADERS is set to NO.
+# The default value is: NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body of functions,
+# classes and enums directly into the documentation.
+# The default value is: NO.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
+# special comment blocks from generated source code fragments. Normal C, C++ and
+# Fortran comments will always remain visible.
+# The default value is: YES.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
+# function all documented functions referencing it will be listed.
+# The default value is: NO.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES then for each documented function
+# all documented entities called/used by that function will be listed.
+# The default value is: NO.
+
+REFERENCES_RELATION    = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
+# to YES, then the hyperlinks from functions in REFERENCES_RELATION and
+# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
+# link to the documentation.
+# The default value is: YES.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
+# source code will show a tooltip with additional information such as prototype,
+# brief description and links to the definition and documentation. Since this
+# will make the HTML file larger and loading of large files a bit slower, you
+# can opt to disable this feature.
+# The default value is: YES.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+SOURCE_TOOLTIPS        = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code will
+# point to the HTML generated by the htags(1) tool instead of doxygen built-in
+# source browser. The htags tool is part of GNU's global source tagging system
+# (see http://www.gnu.org/software/global/global.html). You will need version
+# 4.8.6 or higher.
+#
+# To use it do the following:
+# - Install the latest version of global
+# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
+# - Make sure the INPUT points to the root of the source tree
+# - Run doxygen as normal
+#
+# Doxygen will invoke htags (and that will in turn invoke gtags), so these
+# tools must be available from the command line (i.e. in the search path).
+#
+# The result: instead of the source browser generated by doxygen, the links to
+# source code will now point to the output of htags.
+# The default value is: NO.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
+# verbatim copy of the header file for each class for which an include is
+# specified. Set to NO to disable this.
+# See also: Section \class.
+# The default value is: YES.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX     = YES
+
+# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
+# which the alphabetical index list will be split.
+# Minimum value: 1, maximum value: 20, default value: 5.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all classes will
+# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# while generating the index headers.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES doxygen will generate HTML output
+# The default value is: YES.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
+# generated HTML page (for example: .htm, .php, .asp).
+# The default value is: .html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify an additional user-
+# defined cascading style sheet that is included after the standard style sheets
+# created by doxygen. Using this option one can overrule certain style aspects.
+# This is preferred over using HTML_STYLESHEET since it does not replace the
+# standard style sheet and is therefor more robust against future updates.
+# Doxygen will copy the style sheet file to the output directory. For an example
+# see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_STYLESHEET  =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
+# will adjust the colors in the stylesheet and background images according to
+# this color. Hue is specified as an angle on a colorwheel, see
+# http://en.wikipedia.org/wiki/Hue for more information. For instance the value
+# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
+# purple, and 360 is red again.
+# Minimum value: 0, maximum value: 359, default value: 220.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_HUE    = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
+# luminance component of the colors in the HTML output. Values below 100
+# gradually make the output lighter, whereas values above 100 make the output
+# darker. The value divided by 100 is the actual gamma applied, so 80 represents
+# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
+# change the gamma.
+# Minimum value: 40, maximum value: 240, default value: 80.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP         = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
+# shown in the various tree structured indices initially; the user can expand
+# and collapse entries dynamically later on. Doxygen will expand the tree to
+# such a level that at most the specified number of entries are visible (unless
+# a fully collapsed tree already exceeds this amount). So setting the number of
+# entries 1 will produce a full collapsed tree by default. 0 is a special value
+# representing an infinite number of entries and will result in a full expanded
+# tree by default.
+# Minimum value: 0, maximum value: 9999, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files will be
+# generated that can be used as input for Apple's Xcode 3 integrated development
+# environment (see: http://developer.apple.com/tools/xcode/), introduced with
+# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# Makefile in the HTML output directory. Running make will produce the docset in
+# that directory and running make install will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
+# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_DOCSET        = NO
+
+# This tag determines the name of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# The default value is: Doxygen generated docs.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# This tag specifies a string that should uniquely identify the documentation
+# set bundle. This should be a reverse domain-name style string, e.g.
+# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+# The default value is: org.doxygen.Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
+# The default value is: Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
+# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
+# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
+# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# Windows.
+#
+# The HTML Help Workshop contains a compiler that can convert all HTML output
+# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
+# files are now used as the Windows 98 help format, and will replace the old
+# Windows help format (.hlp) on all Windows platforms in the future. Compressed
+# HTML files also contain an index, a table of contents, and you can search for
+# words in the documentation. The HTML workshop also contains a viewer for
+# compressed HTML files.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_HTMLHELP      = NO
+
+# The CHM_FILE tag can be used to specify the file name of the resulting .chm
+# file. You can add a path in front of the file if the result should not be
+# written to the html output directory.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_FILE               =
+
+# The HHC_LOCATION tag can be used to specify the location (absolute path
+# including file name) of the HTML help compiler ( hhc.exe). If non-empty
+# doxygen will try to run the HTML help compiler on the generated index.hhp.
+# The file has to be specified with full path.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+HHC_LOCATION           =
+
+# The GENERATE_CHI flag controls if a separate .chi index file is generated (
+# YES) or that it should be included in the master .chm file ( NO).
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+GENERATE_CHI           = NO
+
+# The CHM_INDEX_ENCODING is used to encode HtmlHelp index ( hhk), content ( hhc)
+# and project file content.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_INDEX_ENCODING     =
+
+# The BINARY_TOC flag controls whether a binary table of contents is generated (
+# YES) or a normal table of contents ( NO) in the .chm file.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members to
+# the table of contents of the HTML help documentation and to the tree view.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
+# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
+# (.qch) of the generated HTML documentation.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
+# the file name of the resulting .qch file. The path specified is relative to
+# the HTML output folder.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
+# Project output. For more information please see Qt Help Project / Namespace
+# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_NAMESPACE          = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
+# Help Project output. For more information please see Qt Help Project / Virtual
+# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
+# folders).
+# The default value is: doc.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
+# filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's filter section matches. Qt Help Project / Filter Attributes (see:
+# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# The QHG_LOCATION tag can be used to specify the location of Qt's
+# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
+# generated .qhp file.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
+# generated, together with the HTML files, they form an Eclipse help plugin. To
+# install this plugin and make it available under the help contents menu in
+# Eclipse, the contents of the directory containing the HTML and XML files needs
+# to be copied into the plugins directory of eclipse. The name of the directory
+# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
+# After copying Eclipse needs to be restarted before the help appears.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the Eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have this
+# name. Each documentation set should have its own identifier.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# If you want full control over the layout of the generated HTML pages it might
+# be necessary to disable the index and replace it with your own. The
+# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
+# of each HTML page. A value of NO enables the index and the value YES disables
+# it. Since the tabs in the index contain the same information as the navigation
+# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+DISABLE_INDEX          = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information. If the tag
+# value is set to YES, a side panel will be generated containing a tree-like
+# index structure (just like the one that is generated for HTML Help). For this
+# to work a browser that supports JavaScript, DHTML, CSS and frames is required
+# (i.e. any modern browser). Windows users are probably better off using the
+# HTML help feature. Via custom stylesheets (see HTML_EXTRA_STYLESHEET) one can
+# further fine-tune the look of the index. As an example, the default style
+# sheet generated by doxygen has an example that shows how to put an image at
+# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
+# the same information as the tab index, you could consider setting
+# DISABLE_INDEX to YES when enabling this option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_TREEVIEW      = NO
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
+# doxygen will group on one line in the generated HTML documentation.
+#
+# Note that a value of 0 will completely suppress the enum values from appearing
+# in the overview section.
+# Minimum value: 0, maximum value: 20, default value: 4.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
+# to set the initial width (in pixels) of the frame in which the tree is shown.
+# Minimum value: 0, maximum value: 1500, default value: 250.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+TREEVIEW_WIDTH         = 250
+
+# When the EXT_LINKS_IN_WINDOW option is set to YES doxygen will open links to
+# external symbols imported via tag files in a separate window.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# Use this tag to change the font size of LaTeX formulas included as images in
+# the HTML documentation. When you change the font size after a successful
+# doxygen run you need to manually remove any form_*.png images from the HTML
+# output directory to force them to be regenerated.
+# Minimum value: 8, maximum value: 50, default value: 10.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are not
+# supported properly for IE 6.0, but are supported on all modern browsers.
+#
+# Note that when changing this option you need to delete any form_*.png files in
+# the HTML output directory before the changes have effect.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_TRANSPARENT    = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
+# http://www.mathjax.org) which uses client side Javascript for the rendering
+# instead of using prerendered bitmaps. Use this if you do not have LaTeX
+# installed or if you want to formulas look prettier in the HTML output. When
+# enabled you may also need to install MathJax separately and configure the path
+# to it using the MATHJAX_RELPATH option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. See the MathJax site (see:
+# http://docs.mathjax.org/en/latest/output.html) for more details.
+# Possible values are: HTML-CSS (which is slower, but has the best
+# compatibility), NativeMML (i.e. MathML) and SVG.
+# The default value is: HTML-CSS.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_FORMAT         = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from http://www.mathjax.org before deployment.
+# The default value is: http://cdn.mathjax.org/mathjax/latest.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
+# extension names that should be enabled during MathJax rendering. For example
+# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_EXTENSIONS     =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
+# of code that will be used on startup of the MathJax code. See the MathJax site
+# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# example see the documentation.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_CODEFILE       =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
+# the HTML output. The underlying search engine uses javascript and DHTML and
+# should work on any modern browser. Note that when using HTML help
+# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
+# there is already a search function so this one should typically be disabled.
+# For large projects the javascript based search engine can be slow, then
+# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
+# search using the keyboard; to jump to the search box use <access key> + S
+# (what the <access key> is depends on the OS and browser, but it is typically
+# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
+# key> to jump into the search results window, the results can be navigated
+# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
+# the search. The filter options can be selected when the cursor is inside the
+# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
+# to select a filter and <Enter> or <escape> to activate or cancel the filter
+# option.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+SEARCHENGINE           = YES
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using Javascript. There
+# are two flavours of web server based searching depending on the
+# EXTERNAL_SEARCH setting. When disabled, doxygen will generate a PHP script for
+# searching and an index file used by the script. When EXTERNAL_SEARCH is
+# enabled the indexing and searching needs to be provided by external tools. See
+# the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SERVER_BASED_SEARCH    = NO
+
+# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
+# search results.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/).
+#
+# See the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will return the search results when EXTERNAL_SEARCH is enabled.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/). See the section "External Indexing and
+# Searching" for details.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHENGINE_URL       =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+# The default file is: searchdata.xml.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHDATA_FILE        = searchdata.xml
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH_ID     =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
+# to a relative location where the documentation can be found. The format is:
+# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTRA_SEARCH_MAPPINGS  =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES doxygen will generate LaTeX output.
+# The default value is: YES.
+
+GENERATE_LATEX         = YES
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked.
+#
+# Note that when enabling USE_PDFLATEX this option is only used for generating
+# bitmaps for formulas in the HTML output, but not in the Makefile that is
+# written to the output directory.
+# The default file is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
+# index for LaTeX.
+# The default file is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES doxygen generates more compact LaTeX
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE             = a4
+
+# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
+# that should be included in the LaTeX output. To get the times font for
+# instance you can specify
+# EXTRA_PACKAGES=times
+# If left blank no extra packages will be included.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
+# generated LaTeX document. The header should contain everything until the first
+# chapter. If it is left blank doxygen will generate a standard header. See
+# section "Doxygen usage" for information on how to let doxygen write the
+# default header to a separate file.
+#
+# Note: Only use a user-defined header if you know what you are doing! The
+# following commands have a special meaning inside the header: $title,
+# $datetime, $date, $doxygenversion, $projectname, $projectnumber. Doxygen will
+# replace them by respectively the title of the page, the current date and time,
+# only the current date, the version number of doxygen, the project name (see
+# PROJECT_NAME), or the project number (see PROJECT_NUMBER).
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
+# generated LaTeX document. The footer should contain everything after the last
+# chapter. If it is left blank doxygen will generate a standard footer.
+#
+# Note: Only use a user-defined footer if you know what you are doing!
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_FOOTER           =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the LATEX_OUTPUT output
+# directory. Note that the files will be copied as-is; there are no commands or
+# markers available.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_FILES      =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
+# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
+# contain links (just like the HTML output) instead of page references. This
+# makes the output suitable for online browsing using a PDF viewer.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PDF_HYPERLINKS         = YES
+
+# If the LATEX_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
+# the PDF file directly from the LaTeX files. Set this option to YES to get a
+# higher quality PDF documentation.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
+# command to the generated LaTeX files. This will instruct LaTeX to keep running
+# if errors occur, instead of asking the user for help. This option is also used
+# when generating formulas in HTML.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BATCHMODE        = NO
+
+# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
+# index chapters (such as File Index, Compound Index, etc.) in the output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HIDE_INDICES     = NO
+
+# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
+# code with syntax highlighting in the LaTeX output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_SOURCE_CODE      = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. See
+# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# The default value is: plain.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BIB_STYLE        = plain
+
+#---------------------------------------------------------------------------
+# Configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES doxygen will generate RTF output. The
+# RTF output is optimized for Word 97 and may not look too pretty with other RTF
+# readers/editors.
+# The default value is: NO.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: rtf.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES doxygen generates more compact RTF
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
+# contain hyperlink fields. The RTF file will contain links (just like the HTML
+# output) instead of page references. This makes the output suitable for online
+# browsing using Word or some other Word compatible readers that support those
+# fields.
+#
+# Note: WordPad (write) and others do not support links.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's config
+# file, i.e. a series of assignments. You only have to provide replacements,
+# missing definitions are set to their default value.
+#
+# See also section "Doxygen usage" for information on how to generate the
+# default style sheet that doxygen normally uses.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an RTF document. Syntax is
+# similar to doxygen's config file. A template extensions file can be generated
+# using doxygen -e rtf extensionFile.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_EXTENSIONS_FILE    =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it. A directory man3 will be created inside the directory specified by
+# MAN_OUTPUT.
+# The default directory is: man.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to the generated
+# man pages. In case the manual section does not start with a number, the number
+# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
+# optional.
+# The default value is: .3.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_EXTENSION          = .3
+
+# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
+# will generate one additional man file for each entity documented in the real
+# man page(s). These additional files only source the real man page, but without
+# them the man command would be unable to find the correct page.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES doxygen will generate an XML file that
+# captures the structure of the code including all documentation.
+# The default value is: NO.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: xml.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_OUTPUT             = xml
+
+# The XML_SCHEMA tag can be used to specify a XML schema, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_SCHEMA             =
+
+# The XML_DTD tag can be used to specify a XML DTD, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_DTD                =
+
+# If the XML_PROGRAMLISTING tag is set to YES doxygen will dump the program
+# listings (including syntax highlighting and cross-referencing information) to
+# the XML output. Note that enabling this will significantly increase the size
+# of the XML output.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES doxygen will generate Docbook files
+# that can be used to generate PDF.
+# The default value is: NO.
+
+GENERATE_DOCBOOK       = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it.
+# The default directory is: docbook.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_OUTPUT         = docbook
+
+#---------------------------------------------------------------------------
+# Configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES doxygen will generate an AutoGen
+# Definitions (see http://autogen.sf.net) file that captures the structure of
+# the code including all documentation. Note that this feature is still
+# experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES doxygen will generate a Perl module
+# file that captures the structure of the code including all documentation.
+#
+# Note that this feature is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES doxygen will generate the necessary
+# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
+# output from the Perl module output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be nicely
+# formatted so it can be parsed by a human reader. This is useful if you want to
+# understand what is going on. On the other hand, if this tag is set to NO the
+# size of the Perl module output will be much smaller and Perl will parse it
+# just the same.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file are
+# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
+# so different doxyrules.make files included by the same Makefile don't
+# overwrite each other's variables.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES doxygen will evaluate all
+# C-preprocessor directives found in the sources and include files.
+# The default value is: YES.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES doxygen will expand all macro names
+# in the source code. If set to NO only conditional compilation will be
+# performed. Macro expansion can be done in a controlled way by setting
+# EXPAND_ONLY_PREDEF to YES.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+MACRO_EXPANSION        = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_ONLY_PREDEF     = NO
+
+# If the SEARCH_INCLUDES tag is set to YES the includes files in the
+# INCLUDE_PATH will be searched if a #include is found.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SEARCH_INCLUDES        = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by the
+# preprocessor.
+# This tag requires that the tag SEARCH_INCLUDES is set to YES.
+
+INCLUDE_PATH           =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will be
+# used.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+INCLUDE_FILE_PATTERNS  =
+
+# The PREDEFINED tag can be used to specify one or more macro names that are
+# defined before the preprocessor is started (similar to the -D option of e.g.
+# gcc). The argument of the tag is a list of macros of the form: name or
+# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
+# is assumed. To prevent a macro definition from being undefined via #undef or
+# recursively expanded use the := operator instead of the = operator.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+PREDEFINED             =
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
+# tag can be used to specify a list of macro names that should be expanded. The
+# macro definition that is found in the sources will be used. Use the PREDEFINED
+# tag if you want to use a different macro definition that overrules the
+# definition found in the source code.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_AS_DEFINED      =
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
+# remove all refrences to function-like macros that are alone on a line, have an
+# all uppercase name, and do not end with a semicolon. Such function macros are
+# typically used for boiler-plate code, and will confuse the parser if not
+# removed.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SKIP_FUNCTION_MACROS   = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES tag can be used to specify one or more tag files. For each tag
+# file the location of the external documentation should be added. The format of
+# a tag file without this location is as follows:
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where loc1 and loc2 can be relative or absolute paths or URLs. See the
+# section "Linking to external documentation" for more information about the use
+# of tag files.
+# Note: Each tag file must have an unique name (where the name does NOT include
+# the path). If a tag file is not located in the directory in which doxygen is
+# run, you must also specify the path to the tagfile here.
+
+TAGFILES               =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create a
+# tag file that is based on the input files it reads. See section "Linking to
+# external documentation" for more information about the usage of tag files.
+
+GENERATE_TAGFILE       =
+
+# If the ALLEXTERNALS tag is set to YES all external class will be listed in the
+# class index. If set to NO only the inherited external classes will be listed.
+# The default value is: NO.
+
+ALLEXTERNALS           = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed in
+# the modules index. If set to NO, only the current project's groups will be
+# listed.
+# The default value is: YES.
+
+EXTERNAL_GROUPS        = YES
+
+# If the EXTERNAL_PAGES tag is set to YES all external pages will be listed in
+# the related pages index. If set to NO, only the current project's pages will
+# be listed.
+# The default value is: YES.
+
+EXTERNAL_PAGES         = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script
+# interpreter (i.e. the result of 'which perl').
+# The default file (with absolute path) is: /usr/bin/perl.
+
+PERL_PATH              = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES doxygen will generate a class diagram
+# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
+# NO turns the diagrams off. Note that this option also works with HAVE_DOT
+# disabled, but it is recommended to install and use dot, since it yields more
+# powerful graphs.
+# The default value is: YES.
+
+CLASS_DIAGRAMS         = YES
+
+# You can define message sequence charts within doxygen comments using the \msc
+# command. Doxygen will then run the mscgen tool (see:
+# http://www.mcternan.me.uk/mscgen/)) to produce the chart and insert it in the
+# documentation. The MSCGEN_PATH tag allows you to specify the directory where
+# the mscgen tool resides. If left empty the tool is assumed to be found in the
+# default search path.
+
+MSCGEN_PATH            =
+
+# You can include diagrams made with dia in doxygen documentation. Doxygen will
+# then run dia to produce the diagram and insert it in the documentation. The
+# DIA_PATH tag allows you to specify the directory where the dia binary resides.
+# If left empty dia is assumed to be found in the default search path.
+
+DIA_PATH               =
+
+# If set to YES, the inheritance and collaboration graphs will hide inheritance
+# and usage relations if the target is undocumented or is not a class.
+# The default value is: YES.
+
+HIDE_UNDOC_RELATIONS   = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz (see:
+# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
+# Bell Labs. The other options in this section have no effect if this option is
+# set to NO
+# The default value is: NO.
+
+HAVE_DOT               = NO
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
+# to run in parallel. When set to 0 doxygen will base this on the number of
+# processors available in the system. You can set it explicitly to a value
+# larger than 0 to get control over the balance between CPU load and processing
+# speed.
+# Minimum value: 0, maximum value: 32, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_NUM_THREADS        = 0
+
+# When you want a differently looking font n the dot files that doxygen
+# generates you can specify the font name using DOT_FONTNAME. You need to make
+# sure dot is able to find the font, which can be done by putting it in a
+# standard location or by setting the DOTFONTPATH environment variable or by
+# setting DOT_FONTPATH to the directory containing the font.
+# The default value is: Helvetica.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTNAME           = Helvetica
+
+# The DOT_FONTSIZE tag can be used to set the size (in points) of the font of
+# dot graphs.
+# Minimum value: 4, maximum value: 24, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTSIZE           = 10
+
+# By default doxygen will tell dot to use the default font as specified with
+# DOT_FONTNAME. If you specify a different font using DOT_FONTNAME you can set
+# the path where dot can find it using this tag.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTPATH           =
+
+# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
+# each documented class showing the direct and indirect inheritance relations.
+# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CLASS_GRAPH            = YES
+
+# If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
+# graph for each documented class showing the direct and indirect implementation
+# dependencies (inheritance, containment, and class references variables) of the
+# class with other documented classes.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
+# groups, showing the direct groups dependencies.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LOOK               = NO
+
+# If the UML_LOOK tag is enabled, the fields and methods are shown inside the
+# class node. If there are many fields or methods and many nodes the graph may
+# become too big to be useful. The UML_LIMIT_NUM_FIELDS threshold limits the
+# number of items for each type to make the size more manageable. Set this to 0
+# for no limit. Note that the threshold may be exceeded by 50% before the limit
+# is enforced. So when you set the threshold to 10, up to 15 fields may appear,
+# but if the number exceeds 15, the total amount of fields shown is limited to
+# 10.
+# Minimum value: 0, maximum value: 100, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LIMIT_NUM_FIELDS   = 10
+
+# If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
+# collaboration graphs will show the relations between templates and their
+# instances.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+TEMPLATE_RELATIONS     = NO
+
+# If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
+# YES then doxygen will generate a graph for each documented file showing the
+# direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDE_GRAPH          = YES
+
+# If the INCLUDED_BY_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are
+# set to YES then doxygen will generate a graph for each documented file showing
+# the direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDED_BY_GRAPH      = YES
+
+# If the CALL_GRAPH tag is set to YES then doxygen will generate a call
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable call graphs for selected
+# functions only using the \callgraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALL_GRAPH             = NO
+
+# If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable caller graphs for selected
+# functions only using the \callergraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALLER_GRAPH           = NO
+
+# If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical
+# hierarchy of all classes instead of a textual one.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GRAPHICAL_HIERARCHY    = YES
+
+# If the DIRECTORY_GRAPH tag is set to YES then doxygen will show the
+# dependencies a directory has on other directories in a graphical way. The
+# dependency relations are determined by the #include relations between the
+# files in the directories.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DIRECTORY_GRAPH        = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot.
+# Note: If you choose svg you need to set HTML_FILE_EXTENSION to xhtml in order
+# to make the SVG files visible in IE 9+ (other browsers do not have this
+# requirement).
+# Possible values are: png, jpg, gif and svg.
+# The default value is: png.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_IMAGE_FORMAT       = png
+
+# If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
+# enable generation of interactive SVG images that allow zooming and panning.
+#
+# Note that this requires a modern browser other than Internet Explorer. Tested
+# and working are Firefox, Chrome, Safari, and Opera.
+# Note: For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make
+# the SVG files visible. Older versions of IE do not have SVG support.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INTERACTIVE_SVG        = NO
+
+# The DOT_PATH tag can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_PATH               =
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
+# contain dot files that are included in the documentation (see the \dotfile
+# command).
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOTFILE_DIRS           =
+
+# The MSCFILE_DIRS tag can be used to specify one or more directories that
+# contain msc files that are included in the documentation (see the \mscfile
+# command).
+
+MSCFILE_DIRS           =
+
+# The DIAFILE_DIRS tag can be used to specify one or more directories that
+# contain dia files that are included in the documentation (see the \diafile
+# command).
+
+DIAFILE_DIRS           =
+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
+# that will be shown in the graph. If the number of nodes in a graph becomes
+# larger than this value, doxygen will truncate the graph, which is visualized
+# by representing a node as a red box. Note that doxygen if the number of direct
+# children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that
+# the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
+# Minimum value: 0, maximum value: 10000, default value: 50.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_GRAPH_MAX_NODES    = 50
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the graphs
+# generated by dot. A depth value of 3 means that only nodes reachable from the
+# root by following a path via at most 3 edges will be shown. Nodes that lay
+# further from the root node will be omitted. Note that setting this option to 1
+# or 2 may greatly reduce the computation time needed for large code bases. Also
+# note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+# Minimum value: 0, maximum value: 1000, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+MAX_DOT_GRAPH_DEPTH    = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not seem
+# to support this out of the box.
+#
+# Warning: Depending on the platform used, enabling this option may lead to
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to
+# read).
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_TRANSPARENT        = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10) support
+# this, this feature is disabled by default.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_MULTI_TARGETS      = YES
+
+# If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
+# explaining the meaning of the various boxes and arrows in the dot generated
+# graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GENERATE_LEGEND        = YES
+
+# If the DOT_CLEANUP tag is set to YES doxygen will remove the intermediate dot
+# files that are used to generate the various graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_CLEANUP            = YES
diff --git a/media/libaaudio/README.md b/media/libaaudio/README.md
new file mode 100644
index 0000000..0c9050e
--- /dev/null
+++ b/media/libaaudio/README.md
@@ -0,0 +1,3 @@
+AAudio input/output API
+
+To generate Doxygen output, run command "doxygen" in this directory.
diff --git a/media/libaaudio/examples/Android.mk b/media/libaaudio/examples/Android.mk
new file mode 100644
index 0000000..5053e7d
--- /dev/null
+++ b/media/libaaudio/examples/Android.mk
@@ -0,0 +1 @@
+include $(call all-subdir-makefiles)
diff --git a/media/libaaudio/examples/input_monitor/Android.mk b/media/libaaudio/examples/input_monitor/Android.mk
new file mode 100644
index 0000000..b56328b
--- /dev/null
+++ b/media/libaaudio/examples/input_monitor/Android.mk
@@ -0,0 +1,6 @@
+# include $(call all-subdir-makefiles)
+
+# Just include static/ for now.
+LOCAL_PATH := $(call my-dir)
+#include $(LOCAL_PATH)/jni/Android.mk
+include $(LOCAL_PATH)/static/Android.mk
diff --git a/media/libaaudio/examples/input_monitor/README.md b/media/libaaudio/examples/input_monitor/README.md
new file mode 100644
index 0000000..3e54ef0
--- /dev/null
+++ b/media/libaaudio/examples/input_monitor/README.md
@@ -0,0 +1 @@
+Monitor input level and print value.
diff --git a/media/libaaudio/examples/input_monitor/jni/Android.mk b/media/libaaudio/examples/input_monitor/jni/Android.mk
new file mode 100644
index 0000000..3e24f9f
--- /dev/null
+++ b/media/libaaudio/examples/input_monitor/jni/Android.mk
@@ -0,0 +1,33 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src \
+    frameworks/av/media/libaaudio/examples/utils
+
+# NDK recommends using this kind of relative path instead of an absolute path.
+LOCAL_SRC_FILES:= ../src/input_monitor.cpp
+LOCAL_SHARED_LIBRARIES := libaaudio
+LOCAL_MODULE := input_monitor_ndk
+include $(BUILD_EXECUTABLE)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/examples/utils
+
+LOCAL_SRC_FILES:= ../src/input_monitor_callback.cpp
+LOCAL_SHARED_LIBRARIES := libaaudio
+LOCAL_MODULE := input_monitor_callback_ndk
+include $(BUILD_EXECUTABLE)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := libaaudio_prebuilt
+LOCAL_SRC_FILES := libaaudio.so
+LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
+include $(PREBUILT_SHARED_LIBRARY)
\ No newline at end of file
diff --git a/media/libaaudio/examples/input_monitor/jni/Application.mk b/media/libaaudio/examples/input_monitor/jni/Application.mk
new file mode 100644
index 0000000..e74475c
--- /dev/null
+++ b/media/libaaudio/examples/input_monitor/jni/Application.mk
@@ -0,0 +1,3 @@
+# TODO remove then when we support other architectures
+APP_ABI := arm64-v8a
+APP_CPPFLAGS += -std=c++11
diff --git a/media/libaaudio/examples/input_monitor/src/input_monitor.cpp b/media/libaaudio/examples/input_monitor/src/input_monitor.cpp
new file mode 100644
index 0000000..715c5f8
--- /dev/null
+++ b/media/libaaudio/examples/input_monitor/src/input_monitor.cpp
@@ -0,0 +1,178 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Record input using AAudio and display the peak amplitudes.
+
+#include <new>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <aaudio/AAudio.h>
+#include "AAudioExampleUtils.h"
+#include "AAudioSimpleRecorder.h"
+
+#define SAMPLE_RATE        48000
+
+#define NUM_SECONDS        10
+
+#define MIN_FRAMES_TO_READ 48  /* arbitrary, 1 msec at 48000 Hz */
+
+int main(int argc, char **argv)
+{
+    (void)argc; // unused
+
+    aaudio_result_t result;
+    AAudioSimpleRecorder recorder;
+    int actualSamplesPerFrame;
+    int actualSampleRate;
+    const aaudio_format_t requestedDataFormat = AAUDIO_FORMAT_PCM_I16;
+    aaudio_format_t actualDataFormat;
+
+    const int requestedInputChannelCount = 1; // Can affect whether we get a FAST path.
+
+    //aaudio_performance_mode_t requestedPerformanceMode = AAUDIO_PERFORMANCE_MODE_NONE;
+    const aaudio_performance_mode_t requestedPerformanceMode = AAUDIO_PERFORMANCE_MODE_LOW_LATENCY;
+    //aaudio_performance_mode_t requestedPerformanceMode = AAUDIO_PERFORMANCE_MODE_POWER_SAVING;
+    const aaudio_sharing_mode_t requestedSharingMode = AAUDIO_SHARING_MODE_SHARED;
+    //const aaudio_sharing_mode_t requestedSharingMode = AAUDIO_SHARING_MODE_EXCLUSIVE;
+    aaudio_sharing_mode_t actualSharingMode;
+
+    AAudioStream *aaudioStream = nullptr;
+    aaudio_stream_state_t state;
+    int32_t framesPerBurst = 0;
+    int32_t framesPerRead = 0;
+    int32_t framesToRecord = 0;
+    int32_t framesLeft = 0;
+    int32_t xRunCount = 0;
+    int16_t *data = nullptr;
+    float peakLevel = 0.0;
+    int loopCounter = 0;
+
+    // Make printf print immediately so that debug info is not stuck
+    // in a buffer if we hang or crash.
+    setvbuf(stdout, nullptr, _IONBF, (size_t) 0);
+
+    printf("%s - Monitor input level using AAudio\n", argv[0]);
+
+    recorder.setPerformanceMode(requestedPerformanceMode);
+    recorder.setSharingMode(requestedSharingMode);
+
+    result = recorder.open(requestedInputChannelCount, 48000, requestedDataFormat,
+                           nullptr, nullptr, nullptr);
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR -  recorder.open() returned %d\n", result);
+        goto finish;
+    }
+    aaudioStream = recorder.getStream();
+
+    actualSamplesPerFrame = AAudioStream_getSamplesPerFrame(aaudioStream);
+    printf("SamplesPerFrame = %d\n", actualSamplesPerFrame);
+    actualSampleRate = AAudioStream_getSampleRate(aaudioStream);
+    printf("SamplesPerFrame = %d\n", actualSampleRate);
+
+    actualSharingMode = AAudioStream_getSharingMode(aaudioStream);
+    printf("SharingMode: requested = %s, actual = %s\n",
+            getSharingModeText(requestedSharingMode),
+            getSharingModeText(actualSharingMode));
+
+    // This is the number of frames that are written in one chunk by a DMA controller
+    // or a DSP.
+    framesPerBurst = AAudioStream_getFramesPerBurst(aaudioStream);
+    printf("DataFormat: framesPerBurst = %d\n",framesPerBurst);
+
+    // Some DMA might use very short bursts of 16 frames. We don't need to read such small
+    // buffers. But it helps to use a multiple of the burst size for predictable scheduling.
+    framesPerRead = framesPerBurst;
+    while (framesPerRead < MIN_FRAMES_TO_READ) {
+        framesPerRead *= 2;
+    }
+    printf("DataFormat: framesPerRead  = %d\n",framesPerRead);
+
+    actualDataFormat = AAudioStream_getFormat(aaudioStream);
+    printf("DataFormat: requested      = %d, actual = %d\n", requestedDataFormat, actualDataFormat);
+    // TODO handle other data formats
+    assert(actualDataFormat == AAUDIO_FORMAT_PCM_I16);
+
+    printf("PerformanceMode: requested = %d, actual = %d\n", requestedPerformanceMode,
+           AAudioStream_getPerformanceMode(aaudioStream));
+
+    // Allocate a buffer for the audio data.
+    data = new(std::nothrow) int16_t[framesPerRead * actualSamplesPerFrame];
+    if (data == nullptr) {
+        fprintf(stderr, "ERROR - could not allocate data buffer\n");
+        result = AAUDIO_ERROR_NO_MEMORY;
+        goto finish;
+    }
+
+    // Start the stream.
+    result = recorder.start();
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR -  recorder.start() returned %d\n", result);
+        goto finish;
+    }
+
+    state = AAudioStream_getState(aaudioStream);
+    printf("after start, state = %s\n", AAudio_convertStreamStateToText(state));
+
+    // Record for a while.
+    framesToRecord = actualSampleRate * NUM_SECONDS;
+    framesLeft = framesToRecord;
+    while (framesLeft > 0) {
+        // Read audio data from the stream.
+        const int64_t timeoutNanos = 100 * NANOS_PER_MILLISECOND;
+        int minFrames = (framesToRecord < framesPerRead) ? framesToRecord : framesPerRead;
+        int actual = AAudioStream_read(aaudioStream, data, minFrames, timeoutNanos);
+        if (actual < 0) {
+            fprintf(stderr, "ERROR - AAudioStream_read() returned %d\n", actual);
+            result = actual;
+            goto finish;
+        } else if (actual == 0) {
+            fprintf(stderr, "WARNING - AAudioStream_read() returned %d\n", actual);
+            goto finish;
+        }
+        framesLeft -= actual;
+
+        // Peak finder.
+        for (int frameIndex = 0; frameIndex < actual; frameIndex++) {
+            float sample = data[frameIndex * actualSamplesPerFrame] * (1.0/32768);
+            if (sample > peakLevel) {
+                peakLevel = sample;
+            }
+        }
+
+        // Display level as stars, eg. "******".
+        if ((loopCounter++ % 10) == 0) {
+            displayPeakLevel(peakLevel);
+            peakLevel = 0.0;
+        }
+    }
+
+    xRunCount = AAudioStream_getXRunCount(aaudioStream);
+    printf("AAudioStream_getXRunCount %d\n", xRunCount);
+
+    result = recorder.stop();
+    if (result != AAUDIO_OK) {
+        goto finish;
+    }
+
+finish:
+    recorder.close();
+    delete[] data;
+    printf("exiting - AAudio result = %d = %s\n", result, AAudio_convertResultToText(result));
+    return (result != AAUDIO_OK) ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
diff --git a/media/libaaudio/examples/input_monitor/src/input_monitor_callback.cpp b/media/libaaudio/examples/input_monitor/src/input_monitor_callback.cpp
new file mode 100644
index 0000000..9de2eb0
--- /dev/null
+++ b/media/libaaudio/examples/input_monitor/src/input_monitor_callback.cpp
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Record input using AAudio and display the peak amplitudes.
+
+#include <assert.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <time.h>
+#include <aaudio/AAudio.h>
+#include "AAudioExampleUtils.h"
+#include "AAudioSimpleRecorder.h"
+
+#define NUM_SECONDS           5
+
+int main(int argc, char **argv)
+{
+    (void)argc; // unused
+    AAudioSimpleRecorder recorder;
+    PeakTrackerData_t myData = {0.0};
+    aaudio_result_t result;
+    aaudio_stream_state_t state;
+    const int displayRateHz = 20; // arbitrary
+    const int loopsNeeded = NUM_SECONDS * displayRateHz;
+
+    // Make printf print immediately so that debug info is not stuck
+    // in a buffer if we hang or crash.
+    setvbuf(stdout, nullptr, _IONBF, (size_t) 0);
+    printf("%s - Display audio input using an AAudio callback\n", argv[0]);
+
+    result = recorder.open(2, 48000, AAUDIO_FORMAT_PCM_I16,
+                       SimpleRecorderDataCallbackProc, SimpleRecorderErrorCallbackProc, &myData);
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR -  recorder.open() returned %d\n", result);
+        goto error;
+    }
+    printf("recorder.getFramesPerSecond() = %d\n", recorder.getFramesPerSecond());
+    printf("recorder.getSamplesPerFrame() = %d\n", recorder.getSamplesPerFrame());
+
+    result = recorder.start();
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR -  recorder.start() returned %d\n", result);
+        goto error;
+    }
+
+    printf("Sleep for %d seconds while audio record in a callback thread.\n", NUM_SECONDS);
+    for (int i = 0; i < loopsNeeded; i++)
+    {
+        const struct timespec request = { .tv_sec = 0,
+                .tv_nsec = NANOS_PER_SECOND / displayRateHz };
+        (void) clock_nanosleep(CLOCK_MONOTONIC, 0 /*flags*/, &request, NULL /*remain*/);
+        printf("%08d: ", (int)recorder.getFramesRead());
+        displayPeakLevel(myData.peakLevel);
+
+        result = AAudioStream_waitForStateChange(recorder.getStream(),
+                                                 AAUDIO_STREAM_STATE_CLOSED,
+                                                 &state,
+                                                 0);
+        if (result != AAUDIO_OK) {
+            fprintf(stderr, "ERROR - AAudioStream_waitForStateChange() returned %d\n", result);
+            goto error;
+        }
+        if (state != AAUDIO_STREAM_STATE_STARTING && state != AAUDIO_STREAM_STATE_STARTED) {
+            printf("Stream state is %d %s!\n", state, AAudio_convertStreamStateToText(state));
+            break;
+        }
+    }
+    printf("Woke up. Stop for a moment.\n");
+
+    result = recorder.stop();
+    if (result != AAUDIO_OK) {
+        goto error;
+    }
+    usleep(2000 * 1000);
+    result = recorder.start();
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR -  recorder.start() returned %d\n", result);
+        goto error;
+    }
+
+    printf("Sleep for %d seconds while audio records in a callback thread.\n", NUM_SECONDS);
+    for (int i = 0; i < loopsNeeded; i++)
+    {
+        const struct timespec request = { .tv_sec = 0,
+                .tv_nsec = NANOS_PER_SECOND / displayRateHz };
+        (void) clock_nanosleep(CLOCK_MONOTONIC, 0 /*flags*/, &request, NULL /*remain*/);
+        printf("%08d: ", (int)recorder.getFramesRead());
+        displayPeakLevel(myData.peakLevel);
+
+        state = AAudioStream_getState(recorder.getStream());
+        if (state != AAUDIO_STREAM_STATE_STARTING && state != AAUDIO_STREAM_STATE_STARTED) {
+            printf("Stream state is %d %s!\n", state, AAudio_convertStreamStateToText(state));
+            break;
+        }
+    }
+    printf("Woke up now.\n");
+
+    result = recorder.stop();
+    if (result != AAUDIO_OK) {
+        goto error;
+    }
+    result = recorder.close();
+    if (result != AAUDIO_OK) {
+        goto error;
+    }
+
+    printf("SUCCESS\n");
+    return EXIT_SUCCESS;
+error:
+    recorder.close();
+    printf("exiting - AAudio result = %d = %s\n", result, AAudio_convertResultToText(result));
+    return EXIT_FAILURE;
+}
+
diff --git a/media/libaaudio/examples/input_monitor/static/Android.mk b/media/libaaudio/examples/input_monitor/static/Android.mk
new file mode 100644
index 0000000..61fc3b8
--- /dev/null
+++ b/media/libaaudio/examples/input_monitor/static/Android.mk
@@ -0,0 +1,37 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := examples
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/examples/utils
+
+# TODO reorganize folders to avoid using ../
+LOCAL_SRC_FILES:= ../src/input_monitor.cpp
+
+LOCAL_SHARED_LIBRARIES := libaudioutils libmedia \
+                          libbinder libcutils libutils \
+                          libaudioclient liblog libtinyalsa libaudiomanager
+LOCAL_STATIC_LIBRARIES := libaaudio
+
+LOCAL_MODULE := input_monitor
+include $(BUILD_EXECUTABLE)
+
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/examples/utils
+
+LOCAL_SRC_FILES:= ../src/input_monitor_callback.cpp
+
+LOCAL_SHARED_LIBRARIES := libaudioutils libmedia \
+                          libbinder libcutils libutils \
+                          libaudioclient liblog libaudiomanager
+LOCAL_STATIC_LIBRARIES := libaaudio
+
+LOCAL_MODULE := input_monitor_callback
+include $(BUILD_EXECUTABLE)
diff --git a/media/libaaudio/examples/input_monitor/static/README.md b/media/libaaudio/examples/input_monitor/static/README.md
new file mode 100644
index 0000000..6e26d7b
--- /dev/null
+++ b/media/libaaudio/examples/input_monitor/static/README.md
@@ -0,0 +1,2 @@
+Makefile for building simple command line examples.
+They link with AAudio as a static library.
diff --git a/media/libaaudio/examples/loopback/Android.mk b/media/libaaudio/examples/loopback/Android.mk
new file mode 100644
index 0000000..5053e7d
--- /dev/null
+++ b/media/libaaudio/examples/loopback/Android.mk
@@ -0,0 +1 @@
+include $(call all-subdir-makefiles)
diff --git a/media/libaaudio/examples/loopback/jni/Android.mk b/media/libaaudio/examples/loopback/jni/Android.mk
new file mode 100644
index 0000000..dc933e3
--- /dev/null
+++ b/media/libaaudio/examples/loopback/jni/Android.mk
@@ -0,0 +1,13 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include
+
+# NDK recommends using this kind of relative path instead of an absolute path.
+LOCAL_SRC_FILES:= ../src/loopback.cpp
+LOCAL_SHARED_LIBRARIES := libaaudio
+LOCAL_MODULE := aaudio_loopback
+include $(BUILD_EXECUTABLE)
diff --git a/media/libaaudio/examples/loopback/jni/Application.mk b/media/libaaudio/examples/loopback/jni/Application.mk
new file mode 100644
index 0000000..ba44f37
--- /dev/null
+++ b/media/libaaudio/examples/loopback/jni/Application.mk
@@ -0,0 +1 @@
+APP_CPPFLAGS += -std=c++11
diff --git a/media/libaaudio/examples/loopback/src/loopback.cpp b/media/libaaudio/examples/loopback/src/loopback.cpp
new file mode 100644
index 0000000..9f06ee7
--- /dev/null
+++ b/media/libaaudio/examples/loopback/src/loopback.cpp
@@ -0,0 +1,528 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Play an impulse and then record it.
+// Measure the round trip latency.
+
+#include <assert.h>
+#include <cctype>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <aaudio/AAudio.h>
+
+#define INPUT_PEAK_THRESHOLD    0.1f
+#define SILENCE_FRAMES          10000
+#define SAMPLE_RATE             48000
+#define NUM_SECONDS             7
+#define FILENAME                "/data/oboe_input.raw"
+
+#define NANOS_PER_MICROSECOND ((int64_t)1000)
+#define NANOS_PER_MILLISECOND (NANOS_PER_MICROSECOND * 1000)
+#define MILLIS_PER_SECOND     1000
+#define NANOS_PER_SECOND      (NANOS_PER_MILLISECOND * MILLIS_PER_SECOND)
+
+class AudioRecorder
+{
+public:
+    AudioRecorder() {
+    }
+    ~AudioRecorder() {
+        delete[] mData;
+    }
+
+    void allocate(int maxFrames) {
+        delete[] mData;
+        mData = new float[maxFrames];
+        mMaxFrames = maxFrames;
+    }
+
+    void record(int16_t *inputData, int inputChannelCount, int numFrames) {
+        // stop at end of buffer
+        if ((mFrameCounter + numFrames) > mMaxFrames) {
+            numFrames = mMaxFrames - mFrameCounter;
+        }
+        for (int i = 0; i < numFrames; i++) {
+            mData[mFrameCounter++] = inputData[i * inputChannelCount] * (1.0f / 32768);
+        }
+    }
+
+    void record(float *inputData, int inputChannelCount, int numFrames) {
+        // stop at end of buffer
+        if ((mFrameCounter + numFrames) > mMaxFrames) {
+            numFrames = mMaxFrames - mFrameCounter;
+        }
+        for (int i = 0; i < numFrames; i++) {
+            mData[mFrameCounter++] = inputData[i * inputChannelCount];
+        }
+    }
+
+    int save(const char *fileName) {
+        FILE *fid = fopen(fileName, "wb");
+        if (fid == NULL) {
+            return errno;
+        }
+        int written = fwrite(mData, sizeof(float), mFrameCounter, fid);
+        fclose(fid);
+        return written;
+    }
+
+private:
+    float *mData = NULL;
+    int32_t mFrameCounter = 0;
+    int32_t mMaxFrames = 0;
+};
+
+// ====================================================================================
+// ========================= Loopback Processor =======================================
+// ====================================================================================
+class LoopbackProcessor {
+public:
+
+    // Calculate mean and standard deviation.
+    double calculateAverageLatency(double *deviation) {
+        if (mLatencyCount <= 0) {
+            return -1.0;
+        }
+        double sum = 0.0;
+        for (int i = 0; i < mLatencyCount; i++) {
+            sum += mLatencyArray[i];
+        }
+        double average = sum /  mLatencyCount;
+        sum = 0.0;
+        for (int i = 0; i < mLatencyCount; i++) {
+            double error = average - mLatencyArray[i];
+            sum += error * error; // squared
+        }
+        *deviation = sqrt(sum / mLatencyCount);
+        return average;
+    }
+
+    float getMaxAmplitude() const { return mMaxAmplitude; }
+    int   getMeasurementCount() const { return mLatencyCount; }
+    float getAverageAmplitude() const { return mAmplitudeTotal / mAmplitudeCount; }
+
+    // TODO Convert this to a feedback circuit and then use auto-correlation to measure the period.
+    void process(float *inputData, int inputChannelCount,
+            float *outputData, int outputChannelCount,
+            int numFrames) {
+        (void) outputChannelCount;
+
+        // Measure peak and average amplitude.
+        for (int i = 0; i < numFrames; i++) {
+            float sample = inputData[i * inputChannelCount];
+            if (sample > mMaxAmplitude) {
+                mMaxAmplitude = sample;
+            }
+            if (sample < 0) {
+                sample = 0 - sample;
+            }
+            mAmplitudeTotal += sample;
+            mAmplitudeCount++;
+        }
+
+        // Clear output.
+        memset(outputData, 0, numFrames * outputChannelCount * sizeof(float));
+
+        // Wait a while between hearing the pulse and starting a new one.
+        if (mState == STATE_SILENT) {
+            mCounter += numFrames;
+            if (mCounter > SILENCE_FRAMES) {
+                //printf("LoopbackProcessor send impulse, burst #%d\n", mBurstCounter);
+                // copy impulse
+                for (float sample : mImpulse) {
+                    *outputData = sample;
+                    outputData += outputChannelCount;
+                }
+                mState = STATE_LISTENING;
+                mCounter = 0;
+            }
+        }
+        // Start listening as soon as we send the impulse.
+        if (mState ==  STATE_LISTENING) {
+            for (int i = 0; i < numFrames; i++) {
+                float sample = inputData[i * inputChannelCount];
+                if (sample >= INPUT_PEAK_THRESHOLD) {
+                    mLatencyArray[mLatencyCount++] = mCounter;
+                    if (mLatencyCount >= MAX_LATENCY_VALUES) {
+                        mState = STATE_DONE;
+                    } else {
+                        mState = STATE_SILENT;
+                    }
+                    mCounter = 0;
+                    break;
+                } else {
+                    mCounter++;
+                }
+            }
+        }
+    }
+
+    void echo(float *inputData, int inputChannelCount,
+            float *outputData, int outputChannelCount,
+            int numFrames) {
+        int channelsValid = (inputChannelCount < outputChannelCount)
+            ? inputChannelCount : outputChannelCount;
+        for (int i = 0; i < numFrames; i++) {
+            int ic;
+            for (ic = 0; ic < channelsValid; ic++) {
+                outputData[ic] = inputData[ic];
+            }
+            for (ic = 0; ic < outputChannelCount; ic++) {
+                outputData[ic] = 0;
+            }
+            inputData += inputChannelCount;
+            outputData += outputChannelCount;
+        }
+    }
+private:
+    enum {
+        STATE_SILENT,
+        STATE_LISTENING,
+        STATE_DONE
+    };
+
+    enum {
+        MAX_LATENCY_VALUES = 64
+    };
+
+    int     mState = STATE_SILENT;
+    int32_t mCounter = 0;
+    int32_t mLatencyArray[MAX_LATENCY_VALUES];
+    int32_t mLatencyCount = 0;
+    float   mMaxAmplitude = 0;
+    float   mAmplitudeTotal = 0;
+    int32_t mAmplitudeCount = 0;
+    static const float mImpulse[5];
+};
+
+const float LoopbackProcessor::mImpulse[5] = {0.5f, 0.9f, 0.0f, -0.9f, -0.5f};
+
+// TODO make this a class that manages its own buffer allocation
+struct LoopbackData {
+    AAudioStream     *inputStream = nullptr;
+    int32_t           inputFramesMaximum = 0;
+    int16_t          *inputData = nullptr;
+    float            *conversionBuffer = nullptr;
+    int32_t           actualInputChannelCount = 0;
+    int32_t           actualOutputChannelCount = 0;
+    int32_t           inputBuffersToDiscard = 10;
+
+    aaudio_result_t   inputError;
+    LoopbackProcessor loopbackProcessor;
+    AudioRecorder     audioRecorder;
+};
+
+static void convertPcm16ToFloat(const int16_t *source,
+                                float *destination,
+                                int32_t numSamples) {
+    const float scaler = 1.0f / 32768.0f;
+    for (int i = 0; i < numSamples; i++) {
+        destination[i] = source[i] * scaler;
+    }
+}
+
+// ====================================================================================
+// ========================= CALLBACK =================================================
+// ====================================================================================
+// Callback function that fills the audio output buffer.
+static aaudio_data_callback_result_t MyDataCallbackProc(
+        AAudioStream *outputStream,
+        void *userData,
+        void *audioData,
+        int32_t numFrames
+) {
+    (void) outputStream;
+    LoopbackData *myData = (LoopbackData *) userData;
+    float  *outputData = (float  *) audioData;
+
+    // Read audio data from the input stream.
+    int32_t framesRead;
+
+    if (numFrames > myData->inputFramesMaximum) {
+        myData->inputError = AAUDIO_ERROR_OUT_OF_RANGE;
+        return AAUDIO_CALLBACK_RESULT_STOP;
+    }
+
+    if (myData->inputBuffersToDiscard > 0) {
+        // Drain the input.
+        do {
+            framesRead = AAudioStream_read(myData->inputStream, myData->inputData,
+                                       numFrames, 0);
+            if (framesRead < 0) {
+                myData->inputError = framesRead;
+            } else if (framesRead > 0) {
+                myData->inputBuffersToDiscard--;
+            }
+        } while(framesRead > 0);
+    } else {
+        framesRead = AAudioStream_read(myData->inputStream, myData->inputData,
+                                       numFrames, 0);
+        if (framesRead < 0) {
+            myData->inputError = framesRead;
+        } else if (framesRead > 0) {
+            // Process valid input data.
+            myData->audioRecorder.record(myData->inputData,
+                                         myData->actualInputChannelCount,
+                                         framesRead);
+
+            int32_t numSamples = framesRead * myData->actualInputChannelCount;
+            convertPcm16ToFloat(myData->inputData, myData->conversionBuffer, numSamples);
+
+            myData->loopbackProcessor.process(myData->conversionBuffer,
+                                              myData->actualInputChannelCount,
+                                              outputData,
+                                              myData->actualOutputChannelCount,
+                                              framesRead);
+        }
+    }
+
+    return AAUDIO_CALLBACK_RESULT_CONTINUE;
+}
+
+static void usage() {
+    printf("loopback: -b{burstsPerBuffer} -p{outputPerfMode} -P{inputPerfMode}\n");
+    printf("          -b{burstsPerBuffer} for example 2 for double buffered\n");
+    printf("          -p{outputPerfMode}  set output AAUDIO_PERFORMANCE_MODE*\n");
+    printf("          -P{inputPerfMode}   set input AAUDIO_PERFORMANCE_MODE*\n");
+    printf("              n for _NONE\n");
+    printf("              l for _LATENCY\n");
+    printf("              p for _POWER_SAVING;\n");
+    printf("For example:  loopback -b2 -pl -Pn\n");
+}
+
+static aaudio_performance_mode_t parsePerformanceMode(char c) {
+    aaudio_performance_mode_t mode = AAUDIO_PERFORMANCE_MODE_NONE;
+    c = tolower(c);
+    switch (c) {
+        case 'n':
+            mode = AAUDIO_PERFORMANCE_MODE_NONE;
+            break;
+        case 'l':
+            mode = AAUDIO_PERFORMANCE_MODE_LOW_LATENCY;
+            break;
+        case 'p':
+            mode = AAUDIO_PERFORMANCE_MODE_POWER_SAVING;
+            break;
+        default:
+            printf("ERROR invalue performance mode %c\n", c);
+            break;
+    }
+    return mode;
+}
+
+// ====================================================================================
+// TODO break up this large main() function into smaller functions
+int main(int argc, const char **argv)
+{
+    aaudio_result_t result = AAUDIO_OK;
+    LoopbackData loopbackData;
+    AAudioStream *outputStream = nullptr;
+
+    const int requestedInputChannelCount = 1;
+    const int requestedOutputChannelCount = AAUDIO_UNSPECIFIED;
+    const int requestedSampleRate = SAMPLE_RATE;
+    int actualSampleRate = 0;
+    const aaudio_format_t requestedInputFormat = AAUDIO_FORMAT_PCM_I16;
+    const aaudio_format_t requestedOutputFormat = AAUDIO_FORMAT_PCM_FLOAT;
+    aaudio_format_t actualInputFormat;
+    aaudio_format_t actualOutputFormat;
+
+    const aaudio_sharing_mode_t requestedSharingMode = AAUDIO_SHARING_MODE_EXCLUSIVE;
+    //const aaudio_sharing_mode_t requestedSharingMode = AAUDIO_SHARING_MODE_SHARED;
+    aaudio_sharing_mode_t       actualSharingMode;
+
+    AAudioStreamBuilder  *builder = nullptr;
+    aaudio_stream_state_t state = AAUDIO_STREAM_STATE_UNINITIALIZED;
+    int32_t framesPerBurst = 0;
+    float *outputData = NULL;
+    double deviation;
+    double latency;
+    aaudio_performance_mode_t outputPerformanceLevel = AAUDIO_PERFORMANCE_MODE_LOW_LATENCY;
+    aaudio_performance_mode_t inputPerformanceLevel = AAUDIO_PERFORMANCE_MODE_LOW_LATENCY;
+
+    int32_t burstsPerBuffer = 1; // single buffered
+
+    for (int i = 1; i < argc; i++) {
+        const char *arg = argv[i];
+        if (arg[0] == '-') {
+            char option = arg[1];
+            switch (option) {
+                case 'b':
+                    burstsPerBuffer = atoi(&arg[2]);
+                    break;
+                case 'p':
+                    outputPerformanceLevel = parsePerformanceMode(arg[2]);
+                    break;
+                case 'P':
+                    inputPerformanceLevel = parsePerformanceMode(arg[2]);
+                    break;
+                default:
+                    usage();
+                    break;
+            }
+        } else {
+            break;
+        }
+    }
+
+    loopbackData.audioRecorder.allocate(NUM_SECONDS * SAMPLE_RATE);
+
+    // Make printf print immediately so that debug info is not stuck
+    // in a buffer if we hang or crash.
+    setvbuf(stdout, NULL, _IONBF, (size_t) 0);
+
+    printf("%s - Audio loopback using AAudio\n", argv[0]);
+
+    // Use an AAudioStreamBuilder to contain requested parameters.
+    result = AAudio_createStreamBuilder(&builder);
+    if (result < 0) {
+        goto finish;
+    }
+
+    // Request common stream properties.
+    AAudioStreamBuilder_setSampleRate(builder, requestedSampleRate);
+    AAudioStreamBuilder_setFormat(builder, requestedInputFormat);
+    AAudioStreamBuilder_setSharingMode(builder, requestedSharingMode);
+
+    // Open the input stream.
+    AAudioStreamBuilder_setDirection(builder, AAUDIO_DIRECTION_INPUT);
+    AAudioStreamBuilder_setPerformanceMode(builder, inputPerformanceLevel);
+    AAudioStreamBuilder_setChannelCount(builder, requestedInputChannelCount);
+
+    result = AAudioStreamBuilder_openStream(builder, &loopbackData.inputStream);
+    printf("AAudioStreamBuilder_openStream(input) returned %d = %s\n",
+           result, AAudio_convertResultToText(result));
+    if (result < 0) {
+        goto finish;
+    }
+
+    // Create an output stream using the Builder.
+    AAudioStreamBuilder_setDirection(builder, AAUDIO_DIRECTION_OUTPUT);
+    AAudioStreamBuilder_setFormat(builder, requestedOutputFormat);
+    AAudioStreamBuilder_setPerformanceMode(builder, outputPerformanceLevel);
+    AAudioStreamBuilder_setChannelCount(builder, requestedOutputChannelCount);
+    AAudioStreamBuilder_setDataCallback(builder, MyDataCallbackProc, &loopbackData);
+
+    result = AAudioStreamBuilder_openStream(builder, &outputStream);
+    printf("AAudioStreamBuilder_openStream(output) returned %d = %s\n",
+           result, AAudio_convertResultToText(result));
+    if (result != AAUDIO_OK) {
+        goto finish;
+    }
+
+    printf("Stream INPUT ---------------------\n");
+    loopbackData.actualInputChannelCount = AAudioStream_getChannelCount(loopbackData.inputStream);
+    printf("    channelCount: requested = %d, actual = %d\n", requestedInputChannelCount,
+           loopbackData.actualInputChannelCount);
+    printf("    framesPerBurst = %d\n", AAudioStream_getFramesPerBurst(loopbackData.inputStream));
+
+    actualInputFormat = AAudioStream_getFormat(loopbackData.inputStream);
+    printf("    dataFormat: requested = %d, actual = %d\n", requestedInputFormat, actualInputFormat);
+    assert(actualInputFormat == AAUDIO_FORMAT_PCM_I16);
+
+    printf("Stream OUTPUT ---------------------\n");
+    // Check to see what kind of stream we actually got.
+    actualSampleRate = AAudioStream_getSampleRate(outputStream);
+    printf("    sampleRate: requested = %d, actual = %d\n", requestedSampleRate, actualSampleRate);
+
+    loopbackData.actualOutputChannelCount = AAudioStream_getChannelCount(outputStream);
+    printf("    channelCount: requested = %d, actual = %d\n", requestedOutputChannelCount,
+           loopbackData.actualOutputChannelCount);
+
+    actualSharingMode = AAudioStream_getSharingMode(outputStream);
+    printf("    sharingMode: requested = %d, actual = %d\n", requestedSharingMode, actualSharingMode);
+
+    // This is the number of frames that are read in one chunk by a DMA controller
+    // or a DSP or a mixer.
+    framesPerBurst = AAudioStream_getFramesPerBurst(outputStream);
+    printf("    framesPerBurst = %d\n", framesPerBurst);
+
+    printf("    bufferCapacity = %d\n", AAudioStream_getBufferCapacityInFrames(outputStream));
+
+    actualOutputFormat = AAudioStream_getFormat(outputStream);
+    printf("    dataFormat: requested = %d, actual = %d\n", requestedOutputFormat, actualOutputFormat);
+    assert(actualOutputFormat == AAUDIO_FORMAT_PCM_FLOAT);
+
+    // Allocate a buffer for the audio data.
+    loopbackData.inputFramesMaximum = 32 * framesPerBurst;
+
+    loopbackData.inputData = new int16_t[loopbackData.inputFramesMaximum * loopbackData.actualInputChannelCount];
+    loopbackData.conversionBuffer = new float[loopbackData.inputFramesMaximum *
+                                              loopbackData.actualInputChannelCount];
+
+    result = AAudioStream_setBufferSizeInFrames(outputStream, burstsPerBuffer * framesPerBurst);
+    if (result < 0) { // may be positive buffer size
+        fprintf(stderr, "ERROR - AAudioStream_setBufferSize() returned %d\n", result);
+        goto finish;
+    }
+    printf("AAudioStream_setBufferSize() actual = %d\n",result);
+
+    // Start output first so input stream runs low.
+    result = AAudioStream_requestStart(outputStream);
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR - AAudioStream_requestStart(output) returned %d = %s\n",
+                result, AAudio_convertResultToText(result));
+        goto finish;
+    }
+
+    result = AAudioStream_requestStart(loopbackData.inputStream);
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR - AAudioStream_requestStart(input) returned %d = %s\n",
+                result, AAudio_convertResultToText(result));
+        goto finish;
+    }
+
+    printf("------- sleep while the callback runs --------------\n");
+    fflush(stdout);
+    sleep(NUM_SECONDS);
+
+
+    printf("input error = %d = %s\n",
+                loopbackData.inputError, AAudio_convertResultToText(loopbackData.inputError));
+
+    printf("AAudioStream_getXRunCount %d\n", AAudioStream_getXRunCount(outputStream));
+    printf("framesRead    = %d\n", (int) AAudioStream_getFramesRead(outputStream));
+    printf("framesWritten = %d\n", (int) AAudioStream_getFramesWritten(outputStream));
+
+    latency = loopbackData.loopbackProcessor.calculateAverageLatency(&deviation);
+    printf("measured peak    = %8.5f\n", loopbackData.loopbackProcessor.getMaxAmplitude());
+    printf("threshold        = %8.5f\n", INPUT_PEAK_THRESHOLD);
+    printf("measured average = %8.5f\n", loopbackData.loopbackProcessor.getAverageAmplitude());
+    printf("# latency measurements = %d\n", loopbackData.loopbackProcessor.getMeasurementCount());
+    printf("measured latency = %8.2f +/- %4.5f frames\n", latency, deviation);
+    printf("measured latency = %8.2f msec  <===== !!\n", (1000.0 * latency / actualSampleRate));
+
+    {
+        int written = loopbackData.audioRecorder.save(FILENAME);
+        printf("wrote %d samples to %s\n", written, FILENAME);
+    }
+
+finish:
+    AAudioStream_close(outputStream);
+    AAudioStream_close(loopbackData.inputStream);
+    delete[] loopbackData.conversionBuffer;
+    delete[] loopbackData.inputData;
+    delete[] outputData;
+    AAudioStreamBuilder_delete(builder);
+
+    printf("exiting - AAudio result = %d = %s\n", result, AAudio_convertResultToText(result));
+    return (result != AAUDIO_OK) ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
diff --git a/media/libaaudio/examples/utils/AAudioExampleUtils.h b/media/libaaudio/examples/utils/AAudioExampleUtils.h
new file mode 100644
index 0000000..66de25f
--- /dev/null
+++ b/media/libaaudio/examples/utils/AAudioExampleUtils.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_EXAMPLE_UTILS_H
+#define AAUDIO_EXAMPLE_UTILS_H
+
+#include <unistd.h>
+#include <sched.h>
+#include <aaudio/AAudio.h>
+
+#define NANOS_PER_MICROSECOND ((int64_t)1000)
+#define NANOS_PER_MILLISECOND (NANOS_PER_MICROSECOND * 1000)
+#define NANOS_PER_SECOND      (NANOS_PER_MILLISECOND * 1000)
+
+static const char *getSharingModeText(aaudio_sharing_mode_t mode) {
+    const char *modeText = "unknown";
+    switch (mode) {
+    case AAUDIO_SHARING_MODE_EXCLUSIVE:
+        modeText = "EXCLUSIVE";
+        break;
+    case AAUDIO_SHARING_MODE_SHARED:
+        modeText = "SHARED";
+        break;
+    default:
+        break;
+    }
+    return modeText;
+}
+
+static int64_t getNanoseconds(clockid_t clockId = CLOCK_MONOTONIC) {
+    struct timespec time;
+    int result = clock_gettime(clockId, &time);
+    if (result < 0) {
+        return -errno;
+    }
+    return (time.tv_sec * NANOS_PER_SECOND) + time.tv_nsec;
+}
+
+void displayPeakLevel(float peakLevel) {
+    printf("%5.3f ", peakLevel);
+    const int maxStars = 50; // arbitrary, fits on one line
+    int numStars = (int) (peakLevel * maxStars);
+    for (int i = 0; i < numStars; i++) {
+        printf("*");
+    }
+    printf("\n");
+}
+
+#endif // AAUDIO_EXAMPLE_UTILS_H
diff --git a/media/libaaudio/examples/utils/AAudioSimplePlayer.h b/media/libaaudio/examples/utils/AAudioSimplePlayer.h
new file mode 100644
index 0000000..aaeb25f
--- /dev/null
+++ b/media/libaaudio/examples/utils/AAudioSimplePlayer.h
@@ -0,0 +1,253 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Play sine waves using an AAudio callback.
+
+#ifndef AAUDIO_SIMPLE_PLAYER_H
+#define AAUDIO_SIMPLE_PLAYER_H
+
+#include <unistd.h>
+#include <sched.h>
+
+#include <aaudio/AAudio.h>
+#include "SineGenerator.h"
+
+//#define SHARING_MODE  AAUDIO_SHARING_MODE_EXCLUSIVE
+#define SHARING_MODE  AAUDIO_SHARING_MODE_SHARED
+#define PERFORMANCE_MODE AAUDIO_PERFORMANCE_MODE_NONE
+
+/**
+ * Simple wrapper for AAudio that opens an output stream either in callback or blocking write mode.
+ */
+class AAudioSimplePlayer {
+public:
+    AAudioSimplePlayer() {}
+    ~AAudioSimplePlayer() {
+        close();
+    };
+
+    /**
+     * Call this before calling open().
+     * @param requestedSharingMode
+     */
+    void setSharingMode(aaudio_sharing_mode_t requestedSharingMode) {
+        mRequestedSharingMode = requestedSharingMode;
+    }
+
+    /**
+     * Call this before calling open().
+     * @param requestedPerformanceMode
+     */
+    void setPerformanceMode(aaudio_performance_mode_t requestedPerformanceMode) {
+        mRequestedPerformanceMode = requestedPerformanceMode;
+    }
+
+    /**
+     * Also known as "sample rate"
+     * Only call this after open() has been called.
+     */
+    int32_t getFramesPerSecond() {
+        if (mStream == nullptr) {
+            return AAUDIO_ERROR_INVALID_STATE;
+        }
+        return AAudioStream_getSampleRate(mStream);;
+    }
+
+    /**
+     * Only call this after open() has been called.
+     */
+    int32_t getChannelCount() {
+        if (mStream == nullptr) {
+            return AAUDIO_ERROR_INVALID_STATE;
+        }
+        return AAudioStream_getChannelCount(mStream);;
+    }
+
+    /**
+     * Open a stream
+     */
+    aaudio_result_t open(int channelCount, int sampSampleRate, aaudio_format_t format,
+                         AAudioStream_dataCallback dataProc, AAudioStream_errorCallback errorProc,
+                         void *userContext) {
+        aaudio_result_t result = AAUDIO_OK;
+
+        // Use an AAudioStreamBuilder to contain requested parameters.
+        result = AAudio_createStreamBuilder(&mBuilder);
+        if (result != AAUDIO_OK) return result;
+
+        //AAudioStreamBuilder_setSampleRate(mBuilder, 44100);
+        AAudioStreamBuilder_setPerformanceMode(mBuilder, mRequestedPerformanceMode);
+        AAudioStreamBuilder_setSharingMode(mBuilder, mRequestedSharingMode);
+        if (dataProc != nullptr) {
+            AAudioStreamBuilder_setDataCallback(mBuilder, dataProc, userContext);
+        }
+        if (errorProc != nullptr) {
+            AAudioStreamBuilder_setErrorCallback(mBuilder, errorProc, userContext);
+        }
+        AAudioStreamBuilder_setChannelCount(mBuilder, channelCount);
+        AAudioStreamBuilder_setSampleRate(mBuilder, sampSampleRate);
+        AAudioStreamBuilder_setFormat(mBuilder, format);
+        //AAudioStreamBuilder_setFramesPerDataCallback(mBuilder, CALLBACK_SIZE_FRAMES);
+        AAudioStreamBuilder_setBufferCapacityInFrames(mBuilder, 48 * 8);
+
+        //aaudio_performance_mode_t perfMode = AAUDIO_PERFORMANCE_MODE_NONE;
+        aaudio_performance_mode_t perfMode = AAUDIO_PERFORMANCE_MODE_LOW_LATENCY;
+        //aaudio_performance_mode_t perfMode = AAUDIO_PERFORMANCE_MODE_POWER_SAVING;
+        AAudioStreamBuilder_setPerformanceMode(mBuilder, perfMode);
+
+        // Open an AAudioStream using the Builder.
+        result = AAudioStreamBuilder_openStream(mBuilder, &mStream);
+        if (result != AAUDIO_OK) goto finish1;
+
+        printf("AAudioStream_getFramesPerBurst() = %d\n",
+               AAudioStream_getFramesPerBurst(mStream));
+        printf("AAudioStream_getBufferSizeInFrames() = %d\n",
+               AAudioStream_getBufferSizeInFrames(mStream));
+        printf("AAudioStream_getBufferCapacityInFrames() = %d\n",
+               AAudioStream_getBufferCapacityInFrames(mStream));
+        printf("AAudioStream_getPerformanceMode() = %d, requested %d\n",
+               AAudioStream_getPerformanceMode(mStream), perfMode);
+
+     finish1:
+        AAudioStreamBuilder_delete(mBuilder);
+        mBuilder = nullptr;
+        return result;
+    }
+
+    aaudio_result_t close() {
+        if (mStream != nullptr) {
+            printf("call AAudioStream_close(%p)\n", mStream);  fflush(stdout);
+            AAudioStream_close(mStream);
+            mStream = nullptr;
+            AAudioStreamBuilder_delete(mBuilder);
+            mBuilder = nullptr;
+        }
+        return AAUDIO_OK;
+    }
+
+    // Write zero data to fill up the buffer and prevent underruns.
+    aaudio_result_t prime() {
+        int32_t samplesPerFrame = AAudioStream_getChannelCount(mStream);
+        const int numFrames = 32;
+        float zeros[numFrames * samplesPerFrame];
+        memset(zeros, 0, sizeof(zeros));
+        aaudio_result_t result = numFrames;
+        while (result == numFrames) {
+            result = AAudioStream_write(mStream, zeros, numFrames, 0);
+        }
+        return result;
+    }
+
+    // Start the stream. AAudio will start calling your callback function.
+     aaudio_result_t start() {
+        aaudio_result_t result = AAudioStream_requestStart(mStream);
+        if (result != AAUDIO_OK) {
+            printf("ERROR - AAudioStream_requestStart() returned %d %s\n",
+                    result, AAudio_convertResultToText(result));
+        }
+        return result;
+    }
+
+    // Stop the stream. AAudio will stop calling your callback function.
+    aaudio_result_t stop() {
+        aaudio_result_t result = AAudioStream_requestStop(mStream);
+        if (result != AAUDIO_OK) {
+            printf("ERROR - AAudioStream_requestStop() returned %d %s\n",
+                    result, AAudio_convertResultToText(result));
+        }
+        int32_t xRunCount = AAudioStream_getXRunCount(mStream);
+        printf("AAudioStream_getXRunCount %d\n", xRunCount);
+        return result;
+    }
+
+    AAudioStream *getStream() const {
+        return mStream;
+    }
+
+private:
+    AAudioStreamBuilder      *mBuilder = nullptr;
+    AAudioStream             *mStream = nullptr;
+    aaudio_sharing_mode_t     mRequestedSharingMode = SHARING_MODE;
+    aaudio_performance_mode_t mRequestedPerformanceMode = PERFORMANCE_MODE;
+};
+
+typedef struct SineThreadedData_s {
+    SineGenerator  sineOsc1;
+    SineGenerator  sineOsc2;
+    int            scheduler;
+    bool           schedulerChecked;
+} SineThreadedData_t;
+
+// Callback function that fills the audio output buffer.
+aaudio_data_callback_result_t SimplePlayerDataCallbackProc(
+        AAudioStream *stream,
+        void *userData,
+        void *audioData,
+        int32_t numFrames
+        ) {
+
+    // should not happen but just in case...
+    if (userData == nullptr) {
+        fprintf(stderr, "ERROR - SimplePlayerDataCallbackProc needs userData\n");
+        return AAUDIO_CALLBACK_RESULT_STOP;
+    }
+    SineThreadedData_t *sineData = (SineThreadedData_t *) userData;
+
+    if (!sineData->schedulerChecked) {
+        sineData->scheduler = sched_getscheduler(gettid());
+        sineData->schedulerChecked = true;
+    }
+
+    int32_t samplesPerFrame = AAudioStream_getChannelCount(stream);
+    // This code only plays on the first one or two channels.
+    // TODO Support arbitrary number of channels.
+    switch (AAudioStream_getFormat(stream)) {
+        case AAUDIO_FORMAT_PCM_I16: {
+            int16_t *audioBuffer = (int16_t *) audioData;
+            // Render sine waves as shorts to first channel.
+            sineData->sineOsc1.render(&audioBuffer[0], samplesPerFrame, numFrames);
+            // Render sine waves to second channel if there is one.
+            if (samplesPerFrame > 1) {
+                sineData->sineOsc2.render(&audioBuffer[1], samplesPerFrame, numFrames);
+            }
+        }
+        break;
+        case AAUDIO_FORMAT_PCM_FLOAT: {
+            float *audioBuffer = (float *) audioData;
+            // Render sine waves as floats to first channel.
+            sineData->sineOsc1.render(&audioBuffer[0], samplesPerFrame, numFrames);
+            // Render sine waves to second channel if there is one.
+            if (samplesPerFrame > 1) {
+                sineData->sineOsc2.render(&audioBuffer[1], samplesPerFrame, numFrames);
+            }
+        }
+        break;
+        default:
+            return AAUDIO_CALLBACK_RESULT_STOP;
+    }
+
+    return AAUDIO_CALLBACK_RESULT_CONTINUE;
+}
+
+void SimplePlayerErrorCallbackProc(
+        AAudioStream *stream __unused,
+        void *userData __unused,
+        aaudio_result_t error)
+{
+    printf("Error Callback, error: %d\n",(int)error);
+}
+
+#endif //AAUDIO_SIMPLE_PLAYER_H
diff --git a/media/libaaudio/examples/utils/AAudioSimpleRecorder.h b/media/libaaudio/examples/utils/AAudioSimpleRecorder.h
new file mode 100644
index 0000000..9e7c463
--- /dev/null
+++ b/media/libaaudio/examples/utils/AAudioSimpleRecorder.h
@@ -0,0 +1,260 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Record input using AAudio and display the peak amplitudes.
+
+#ifndef AAUDIO_SIMPLE_RECORDER_H
+#define AAUDIO_SIMPLE_RECORDER_H
+
+#include <aaudio/AAudio.h>
+
+//#define SHARING_MODE  AAUDIO_SHARING_MODE_EXCLUSIVE
+#define SHARING_MODE  AAUDIO_SHARING_MODE_SHARED
+#define PERFORMANCE_MODE AAUDIO_PERFORMANCE_MODE_NONE
+/**
+ * Simple wrapper for AAudio that opens an input stream either in callback or blocking read mode.
+ */
+class AAudioSimpleRecorder {
+public:
+    AAudioSimpleRecorder() {}
+    ~AAudioSimpleRecorder() {
+        close();
+    };
+
+    /**
+     * Call this before calling open().
+     * @param requestedSharingMode
+     */
+    void setSharingMode(aaudio_sharing_mode_t requestedSharingMode) {
+        mRequestedSharingMode = requestedSharingMode;
+    }
+
+    /**
+     * Call this before calling open().
+     * @param requestedPerformanceMode
+     */
+    void setPerformanceMode(aaudio_performance_mode_t requestedPerformanceMode) {
+        mRequestedPerformanceMode = requestedPerformanceMode;
+    }
+
+    /**
+     * Also known as "sample rate"
+     * Only call this after open() has been called.
+     */
+    int32_t getFramesPerSecond() {
+        if (mStream == nullptr) {
+            return AAUDIO_ERROR_INVALID_STATE;
+        }
+        return AAudioStream_getSampleRate(mStream);;
+    }
+
+    /**
+     * Only call this after open() has been called.
+     */
+    int32_t getSamplesPerFrame() {
+        if (mStream == nullptr) {
+            return AAUDIO_ERROR_INVALID_STATE;
+        }
+        return AAudioStream_getSamplesPerFrame(mStream);;
+    }
+    /**
+     * Only call this after open() has been called.
+     */
+    int64_t getFramesRead() {
+        if (mStream == nullptr) {
+            return AAUDIO_ERROR_INVALID_STATE;
+        }
+        return AAudioStream_getFramesRead(mStream);;
+    }
+
+    /**
+     * Open a stream
+     */
+    aaudio_result_t open(int channelCount, int sampSampleRate, aaudio_format_t format,
+                         AAudioStream_dataCallback dataProc, AAudioStream_errorCallback errorProc,
+                         void *userContext) {
+        aaudio_result_t result = AAUDIO_OK;
+
+        // Use an AAudioStreamBuilder to contain requested parameters.
+        result = AAudio_createStreamBuilder(&mBuilder);
+        if (result != AAUDIO_OK) return result;
+
+        AAudioStreamBuilder_setDirection(mBuilder, AAUDIO_DIRECTION_INPUT);
+        AAudioStreamBuilder_setPerformanceMode(mBuilder, mRequestedPerformanceMode);
+        AAudioStreamBuilder_setSharingMode(mBuilder, mRequestedSharingMode);
+        if (dataProc != nullptr) {
+            AAudioStreamBuilder_setDataCallback(mBuilder, dataProc, userContext);
+        }
+        if (errorProc != nullptr) {
+            AAudioStreamBuilder_setErrorCallback(mBuilder, errorProc, userContext);
+        }
+        AAudioStreamBuilder_setChannelCount(mBuilder, channelCount);
+        AAudioStreamBuilder_setSampleRate(mBuilder, sampSampleRate);
+        AAudioStreamBuilder_setFormat(mBuilder, format);
+
+        // Open an AAudioStream using the Builder.
+        result = AAudioStreamBuilder_openStream(mBuilder, &mStream);
+        if (result != AAUDIO_OK) {
+            fprintf(stderr, "ERROR - AAudioStreamBuilder_openStream() returned %d %s\n",
+                    result, AAudio_convertResultToText(result));
+            goto finish1;
+        }
+
+        printf("AAudioStream_getFramesPerBurst() = %d\n",
+               AAudioStream_getFramesPerBurst(mStream));
+        printf("AAudioStream_getBufferSizeInFrames() = %d\n",
+               AAudioStream_getBufferSizeInFrames(mStream));
+        printf("AAudioStream_getBufferCapacityInFrames() = %d\n",
+               AAudioStream_getBufferCapacityInFrames(mStream));
+        return result;
+
+     finish1:
+        AAudioStreamBuilder_delete(mBuilder);
+        mBuilder = nullptr;
+        return result;
+    }
+
+    aaudio_result_t close() {
+        if (mStream != nullptr) {
+            printf("call AAudioStream_close(%p)\n", mStream);  fflush(stdout);
+            AAudioStream_close(mStream);
+            mStream = nullptr;
+            AAudioStreamBuilder_delete(mBuilder);
+            mBuilder = nullptr;
+        }
+        return AAUDIO_OK;
+    }
+
+    // Write zero data to fill up the buffer and prevent underruns.
+    aaudio_result_t prime() {
+        int32_t samplesPerFrame = AAudioStream_getSamplesPerFrame(mStream);
+        const int numFrames = 32; // arbitrary
+        float zeros[numFrames * samplesPerFrame];
+        memset(zeros, 0, sizeof(zeros));
+        aaudio_result_t result = numFrames;
+        while (result == numFrames) {
+            result = AAudioStream_write(mStream, zeros, numFrames, 0);
+        }
+        return result;
+    }
+
+    // Start the stream. AAudio will start calling your callback function.
+     aaudio_result_t start() {
+        aaudio_result_t result = AAudioStream_requestStart(mStream);
+        if (result != AAUDIO_OK) {
+            fprintf(stderr, "ERROR - AAudioStream_requestStart() returned %d %s\n",
+                    result, AAudio_convertResultToText(result));
+        }
+        return result;
+    }
+
+    // Stop the stream. AAudio will stop calling your callback function.
+    aaudio_result_t stop() {
+        aaudio_result_t result = AAudioStream_requestStop(mStream);
+        if (result != AAUDIO_OK) {
+            fprintf(stderr, "ERROR - AAudioStream_requestStop() returned %d %s\n",
+                    result, AAudio_convertResultToText(result));
+        }
+        return result;
+    }
+
+    // Pause the stream. AAudio will stop calling your callback function.
+    aaudio_result_t pause() {
+        aaudio_result_t result = AAudioStream_requestPause(mStream);
+        if (result != AAUDIO_OK) {
+            fprintf(stderr, "ERROR - AAudioStream_requestPause() returned %d %s\n",
+                    result, AAudio_convertResultToText(result));
+        }
+        return result;
+    }
+
+    AAudioStream *getStream() const {
+        return mStream;
+    }
+
+private:
+    AAudioStreamBuilder      *mBuilder = nullptr;
+    AAudioStream             *mStream = nullptr;
+    aaudio_sharing_mode_t     mRequestedSharingMode = SHARING_MODE;
+    aaudio_performance_mode_t mRequestedPerformanceMode = PERFORMANCE_MODE;
+};
+
+// Application data that gets passed to the callback.
+typedef struct PeakTrackerData {
+    float peakLevel;
+} PeakTrackerData_t;
+
+#define DECAY_FACTOR   0.999
+
+// Callback function that fills the audio output buffer.
+aaudio_data_callback_result_t SimpleRecorderDataCallbackProc(
+        AAudioStream *stream,
+        void *userData,
+        void *audioData,
+        int32_t numFrames
+        ) {
+
+    // should not happen but just in case...
+    if (userData == nullptr) {
+        fprintf(stderr, "ERROR - SimpleRecorderDataCallbackProc needs userData\n");
+        return AAUDIO_CALLBACK_RESULT_STOP;
+    }
+    PeakTrackerData_t *data = (PeakTrackerData_t *) userData;
+    // printf("MyCallbackProc(): frameCount = %d\n", numFrames);
+    int32_t samplesPerFrame = AAudioStream_getSamplesPerFrame(stream);
+    float sample;
+    // This code assume mono or stereo.
+    switch (AAudioStream_getFormat(stream)) {
+        case AAUDIO_FORMAT_PCM_I16: {
+            int16_t *audioBuffer = (int16_t *) audioData;
+            // Peak follower
+            for (int frameIndex = 0; frameIndex < numFrames; frameIndex++) {
+                sample = audioBuffer[frameIndex * samplesPerFrame] * (1.0/32768);
+                data->peakLevel *= DECAY_FACTOR;
+                if (sample > data->peakLevel) {
+                    data->peakLevel = sample;
+                }
+            }
+        }
+        break;
+        case AAUDIO_FORMAT_PCM_FLOAT: {
+            float *audioBuffer = (float *) audioData;
+            // Peak follower
+            for (int frameIndex = 0; frameIndex < numFrames; frameIndex++) {
+                sample = audioBuffer[frameIndex * samplesPerFrame];
+                data->peakLevel *= DECAY_FACTOR;
+                if (sample > data->peakLevel) {
+                    data->peakLevel = sample;
+                }
+            }
+        }
+        break;
+        default:
+            return AAUDIO_CALLBACK_RESULT_STOP;
+    }
+
+    return AAUDIO_CALLBACK_RESULT_CONTINUE;
+}
+
+void SimpleRecorderErrorCallbackProc(
+        AAudioStream *stream __unused,
+        void *userData __unused,
+        aaudio_result_t error)
+{
+    printf("Error Callback, error: %d\n",(int)error);
+}
+
+#endif //AAUDIO_SIMPLE_RECORDER_H
diff --git a/media/libaaudio/examples/utils/SineGenerator.h b/media/libaaudio/examples/utils/SineGenerator.h
new file mode 100644
index 0000000..64b772d
--- /dev/null
+++ b/media/libaaudio/examples/utils/SineGenerator.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SINE_GENERATOR_H
+#define SINE_GENERATOR_H
+
+#include <math.h>
+
+class SineGenerator
+{
+public:
+    SineGenerator() {}
+    virtual ~SineGenerator() = default;
+
+    void setup(double frequency, double frameRate) {
+        mFrameRate = frameRate;
+        mPhaseIncrement = frequency * M_PI * 2 / frameRate;
+    }
+
+    void setSweep(double frequencyLow, double frequencyHigh, double seconds) {
+        mPhaseIncrementLow = frequencyLow * M_PI * 2 / mFrameRate;
+        mPhaseIncrementHigh = frequencyHigh * M_PI * 2 / mFrameRate;
+
+        double numFrames = seconds * mFrameRate;
+        mUpScaler = pow((frequencyHigh / frequencyLow), (1.0 / numFrames));
+        mDownScaler = 1.0 / mUpScaler;
+        mGoingUp = true;
+        mSweeping = true;
+    }
+
+    void render(int16_t *buffer, int32_t channelStride, int32_t numFrames) {
+        int sampleIndex = 0;
+        for (int i = 0; i < numFrames; i++) {
+            buffer[sampleIndex] = (int16_t) (32767 * sin(mPhase) * mAmplitude);
+            sampleIndex += channelStride;
+            advancePhase();
+        }
+    }
+    void render(float *buffer, int32_t channelStride, int32_t numFrames) {
+        int sampleIndex = 0;
+        for (int i = 0; i < numFrames; i++) {
+            buffer[sampleIndex] = sin(mPhase) * mAmplitude;
+            sampleIndex += channelStride;
+            advancePhase();
+        }
+    }
+
+private:
+    void advancePhase() {
+        mPhase += mPhaseIncrement;
+        if (mPhase > M_PI * 2) {
+            mPhase -= M_PI * 2;
+        }
+        if (mSweeping) {
+            if (mGoingUp) {
+                mPhaseIncrement *= mUpScaler;
+                if (mPhaseIncrement > mPhaseIncrementHigh) {
+                    mGoingUp = false;
+                }
+            } else {
+                mPhaseIncrement *= mDownScaler;
+                if (mPhaseIncrement < mPhaseIncrementLow) {
+                    mGoingUp = true;
+                }
+            }
+        }
+    }
+
+    double mAmplitude = 0.05;  // unitless scaler
+    double mPhase = 0.0;
+    double mPhaseIncrement = 440 * M_PI * 2 / 48000;
+    double mFrameRate = 48000;
+    double mPhaseIncrementLow;
+    double mPhaseIncrementHigh;
+    double mUpScaler = 1.0;
+    double mDownScaler = 1.0;
+    bool   mGoingUp = false;
+    bool   mSweeping = false;
+};
+
+#endif /* SINE_GENERATOR_H */
+
diff --git a/media/libaaudio/examples/write_sine/Android.mk b/media/libaaudio/examples/write_sine/Android.mk
new file mode 100644
index 0000000..5053e7d
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/Android.mk
@@ -0,0 +1 @@
+include $(call all-subdir-makefiles)
diff --git a/media/libaaudio/examples/write_sine/README.md b/media/libaaudio/examples/write_sine/README.md
new file mode 100644
index 0000000..b150471
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/README.md
@@ -0,0 +1,7 @@
+# cd to this directory
+mkdir -p jni/include/aaudio
+ln -s $PLATFORM/frameworks/av/media/liboboe/include/aaudio/*.h jni/include/aaudio
+ln -s $PLATFORM/out/target/product/$TARGET_PRODUCT/symbols/out/soong/ndk/platforms/android-current/arch-arm64/usr/lib/liboboe.so jni
+$NDK/ndk-build
+adb push libs/arm64-v8a/write_sine_threaded /data
+adb shell /data/write_sine_threaded
diff --git a/media/libaaudio/examples/write_sine/jni/Android.mk b/media/libaaudio/examples/write_sine/jni/Android.mk
new file mode 100644
index 0000000..c306ed3
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/jni/Android.mk
@@ -0,0 +1,33 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src \
+    frameworks/av/media/libaaudio/examples/utils
+
+# NDK recommends using this kind of relative path instead of an absolute path.
+LOCAL_SRC_FILES:= ../src/write_sine.cpp
+LOCAL_SHARED_LIBRARIES := libaaudio
+LOCAL_MODULE := write_sine_ndk
+include $(BUILD_EXECUTABLE)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/examples/utils
+
+LOCAL_SRC_FILES:= ../src/write_sine_callback.cpp
+LOCAL_SHARED_LIBRARIES := libaaudio
+LOCAL_MODULE := write_sine_callback_ndk
+include $(BUILD_EXECUTABLE)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := libaaudio_prebuilt
+LOCAL_SRC_FILES := libaaudio.so
+LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
+include $(PREBUILT_SHARED_LIBRARY)
diff --git a/media/libaaudio/examples/write_sine/jni/Application.mk b/media/libaaudio/examples/write_sine/jni/Application.mk
new file mode 100644
index 0000000..ba44f37
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/jni/Application.mk
@@ -0,0 +1 @@
+APP_CPPFLAGS += -std=c++11
diff --git a/media/libaaudio/examples/write_sine/src/write_sine.cpp b/media/libaaudio/examples/write_sine/src/write_sine.cpp
new file mode 100644
index 0000000..6522ba4
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/src/write_sine.cpp
@@ -0,0 +1,229 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Play sine waves using AAudio.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <aaudio/AAudio.h>
+#include <aaudio/AAudioTesting.h>
+#include "AAudioExampleUtils.h"
+#include "AAudioSimplePlayer.h"
+
+#define SAMPLE_RATE           48000
+#define NUM_SECONDS           20
+
+#define MMAP_POLICY              AAUDIO_UNSPECIFIED
+//#define MMAP_POLICY              AAUDIO_POLICY_NEVER
+//#define MMAP_POLICY              AAUDIO_POLICY_AUTO
+//#define MMAP_POLICY              AAUDIO_POLICY_ALWAYS
+
+#define REQUESTED_FORMAT         AAUDIO_FORMAT_PCM_I16
+
+#define REQUESTED_SHARING_MODE   AAUDIO_SHARING_MODE_SHARED
+//#define REQUESTED_SHARING_MODE   AAUDIO_SHARING_MODE_EXCLUSIVE
+
+
+int main(int argc, char **argv)
+{
+    (void)argc; // unused
+
+    AAudioSimplePlayer player;
+    SineThreadedData_t myData;
+    aaudio_result_t result = AAUDIO_OK;
+
+    const int requestedChannelCount = 2;
+    int actualChannelCount = 0;
+    const int requestedSampleRate = SAMPLE_RATE;
+    int actualSampleRate = 0;
+    aaudio_format_t requestedDataFormat = REQUESTED_FORMAT;
+    aaudio_format_t actualDataFormat = AAUDIO_FORMAT_UNSPECIFIED;
+    aaudio_sharing_mode_t actualSharingMode = AAUDIO_SHARING_MODE_SHARED;
+
+    AAudioStream *aaudioStream = nullptr;
+    aaudio_stream_state_t state = AAUDIO_STREAM_STATE_UNINITIALIZED;
+    int32_t  framesPerBurst = 0;
+    int32_t  framesPerWrite = 0;
+    int32_t  bufferCapacity = 0;
+    int32_t  framesToPlay = 0;
+    int32_t  framesLeft = 0;
+    int32_t  xRunCount = 0;
+    float   *floatData = nullptr;
+    int16_t *shortData = nullptr;
+
+    // Make printf print immediately so that debug info is not stuck
+    // in a buffer if we hang or crash.
+    setvbuf(stdout, nullptr, _IONBF, (size_t) 0);
+
+    printf("%s - Play a sine wave using AAudio\n", argv[0]);
+
+    AAudio_setMMapPolicy(MMAP_POLICY);
+    printf("requested MMapPolicy = %d\n", AAudio_getMMapPolicy());
+
+    player.setSharingMode(REQUESTED_SHARING_MODE);
+
+    result = player.open(requestedChannelCount, requestedSampleRate, requestedDataFormat,
+                         nullptr, nullptr, &myData);
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR -  player.open() returned %d\n", result);
+        goto finish;
+    }
+
+    aaudioStream = player.getStream();
+    // Request stream properties.
+
+    state = AAudioStream_getState(aaudioStream);
+    printf("after open, state = %s\n", AAudio_convertStreamStateToText(state));
+
+    // Check to see what kind of stream we actually got.
+    actualSampleRate = AAudioStream_getSampleRate(aaudioStream);
+    printf("SampleRate: requested = %d, actual = %d\n", requestedSampleRate, actualSampleRate);
+
+    myData.sineOsc1.setup(440.0, actualSampleRate);
+    myData.sineOsc2.setup(660.0, actualSampleRate);
+
+    actualChannelCount = AAudioStream_getChannelCount(aaudioStream);
+    printf("ChannelCount: requested = %d, actual = %d\n",
+            requestedChannelCount, actualChannelCount);
+
+    actualSharingMode = AAudioStream_getSharingMode(aaudioStream);
+    printf("SharingMode: requested = %s, actual = %s\n",
+            getSharingModeText(REQUESTED_SHARING_MODE),
+            getSharingModeText(actualSharingMode));
+
+    // This is the number of frames that are read in one chunk by a DMA controller
+    // or a DSP or a mixer.
+    framesPerBurst = AAudioStream_getFramesPerBurst(aaudioStream);
+    printf("Buffer: bufferSize     = %d\n", AAudioStream_getBufferSizeInFrames(aaudioStream));
+    bufferCapacity = AAudioStream_getBufferCapacityInFrames(aaudioStream);
+    printf("Buffer: bufferCapacity = %d, remainder = %d\n",
+           bufferCapacity, bufferCapacity % framesPerBurst);
+
+    // Some DMA might use very short bursts of 16 frames. We don't need to write such small
+    // buffers. But it helps to use a multiple of the burst size for predictable scheduling.
+    framesPerWrite = framesPerBurst;
+    while (framesPerWrite < 48) {
+        framesPerWrite *= 2;
+    }
+    printf("Buffer: framesPerBurst = %d\n",framesPerBurst);
+    printf("Buffer: framesPerWrite = %d\n",framesPerWrite);
+
+    printf("PerformanceMode        = %d\n", AAudioStream_getPerformanceMode(aaudioStream));
+    printf("is MMAP used?          = %s\n", AAudioStream_isMMapUsed(aaudioStream) ? "yes" : "no");
+
+    actualDataFormat = AAudioStream_getFormat(aaudioStream);
+    printf("DataFormat: requested  = %d, actual = %d\n", REQUESTED_FORMAT, actualDataFormat);
+    // TODO handle other data formats
+
+    // Allocate a buffer for the audio data.
+    if (actualDataFormat == AAUDIO_FORMAT_PCM_FLOAT) {
+        floatData = new float[framesPerWrite * actualChannelCount];
+    } else if (actualDataFormat == AAUDIO_FORMAT_PCM_I16) {
+        shortData = new int16_t[framesPerWrite * actualChannelCount];
+    } else {
+        printf("ERROR Unsupported data format!\n");
+        goto finish;
+    }
+
+    // Start the stream.
+    printf("call player.start()\n");
+    result = player.start();
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR - AAudioStream_requestStart() returned %d\n", result);
+        goto finish;
+    }
+
+    state = AAudioStream_getState(aaudioStream);
+    printf("after start, state = %s\n", AAudio_convertStreamStateToText(state));
+
+    // Play for a while.
+    framesToPlay = actualSampleRate * NUM_SECONDS;
+    framesLeft = framesToPlay;
+    while (framesLeft > 0) {
+
+        if (actualDataFormat == AAUDIO_FORMAT_PCM_FLOAT) {
+            // Render sine waves to left and right channels.
+            myData.sineOsc1.render(&floatData[0], actualChannelCount, framesPerWrite);
+            if (actualChannelCount > 1) {
+                myData.sineOsc2.render(&floatData[1], actualChannelCount, framesPerWrite);
+            }
+        } else if (actualDataFormat == AAUDIO_FORMAT_PCM_I16) {
+            // Render sine waves to left and right channels.
+            myData.sineOsc1.render(&shortData[0], actualChannelCount, framesPerWrite);
+            if (actualChannelCount > 1) {
+                myData.sineOsc2.render(&shortData[1], actualChannelCount, framesPerWrite);
+            }
+        }
+
+        // Write audio data to the stream.
+        int64_t timeoutNanos = 1000 * NANOS_PER_MILLISECOND;
+        int32_t minFrames = (framesToPlay < framesPerWrite) ? framesToPlay : framesPerWrite;
+        int32_t actual = 0;
+        if (actualDataFormat == AAUDIO_FORMAT_PCM_FLOAT) {
+            actual = AAudioStream_write(aaudioStream, floatData, minFrames, timeoutNanos);
+        } else if (actualDataFormat == AAUDIO_FORMAT_PCM_I16) {
+            actual = AAudioStream_write(aaudioStream, shortData, minFrames, timeoutNanos);
+        }
+        if (actual < 0) {
+            fprintf(stderr, "ERROR - AAudioStream_write() returned %d\n", actual);
+            goto finish;
+        } else if (actual == 0) {
+            fprintf(stderr, "WARNING - AAudioStream_write() returned %d\n", actual);
+            goto finish;
+        }
+        framesLeft -= actual;
+
+        // Use timestamp to estimate latency.
+        /*
+        {
+            int64_t presentationFrame;
+            int64_t presentationTime;
+            result = AAudioStream_getTimestamp(aaudioStream,
+                                               CLOCK_MONOTONIC,
+                                               &presentationFrame,
+                                               &presentationTime
+                                               );
+            if (result == AAUDIO_OK) {
+                int64_t elapsedNanos = getNanoseconds() - presentationTime;
+                int64_t elapsedFrames = actualSampleRate * elapsedNanos / NANOS_PER_SECOND;
+                int64_t currentFrame = presentationFrame + elapsedFrames;
+                int64_t framesWritten = AAudioStream_getFramesWritten(aaudioStream);
+                int64_t estimatedLatencyFrames = framesWritten - currentFrame;
+                int64_t estimatedLatencyMillis = estimatedLatencyFrames * 1000 / actualSampleRate;
+                printf("estimatedLatencyMillis %d\n", (int)estimatedLatencyMillis);
+            }
+        }
+         */
+    }
+
+    xRunCount = AAudioStream_getXRunCount(aaudioStream);
+    printf("AAudioStream_getXRunCount %d\n", xRunCount);
+
+    printf("call stop()\n");
+    result = player.stop();
+    if (result != AAUDIO_OK) {
+        goto finish;
+    }
+
+finish:
+    player.close();
+    delete[] floatData;
+    delete[] shortData;
+    printf("exiting - AAudio result = %d = %s\n", result, AAudio_convertResultToText(result));
+    return (result != AAUDIO_OK) ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
diff --git a/media/libaaudio/examples/write_sine/src/write_sine_callback.cpp b/media/libaaudio/examples/write_sine/src/write_sine_callback.cpp
new file mode 100644
index 0000000..69145aa
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/src/write_sine_callback.cpp
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Play sine waves using an AAudio callback.
+
+#include <assert.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sched.h>
+#include <stdio.h>
+#include <math.h>
+#include <time.h>
+#include <aaudio/AAudio.h>
+#include "AAudioExampleUtils.h"
+#include "AAudioSimplePlayer.h"
+
+#define NUM_SECONDS              5
+
+// Application data that gets passed to the callback.
+#define MAX_FRAME_COUNT_RECORDS    256
+
+int main(int argc, char **argv)
+{
+    (void)argc; // unused
+    AAudioSimplePlayer player;
+    SineThreadedData_t myData;
+    aaudio_result_t result;
+
+    // Make printf print immediately so that debug info is not stuck
+    // in a buffer if we hang or crash.
+    setvbuf(stdout, nullptr, _IONBF, (size_t) 0);
+    printf("%s - Play a sine sweep using an AAudio callback\n", argv[0]);
+
+    myData.schedulerChecked = false;
+
+    result = player.open(2, 44100, AAUDIO_FORMAT_PCM_FLOAT,
+                         SimplePlayerDataCallbackProc, SimplePlayerErrorCallbackProc, &myData);
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR -  player.open() returned %d\n", result);
+        goto error;
+    }
+    printf("player.getFramesPerSecond() = %d\n", player.getFramesPerSecond());
+    printf("player.getChannelCount() = %d\n", player.getChannelCount());
+    myData.sineOsc1.setup(440.0, 48000);
+    myData.sineOsc1.setSweep(300.0, 600.0, 5.0);
+    myData.sineOsc2.setup(660.0, 48000);
+    myData.sineOsc2.setSweep(350.0, 900.0, 7.0);
+
+#if 0
+    result = player.prime(); // FIXME crashes AudioTrack.cpp
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR - player.prime() returned %d\n", result);
+        goto error;
+    }
+#endif
+
+    result = player.start();
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR - player.start() returned %d\n", result);
+        goto error;
+    }
+
+    printf("Sleep for %d seconds while audio plays in a callback thread.\n", NUM_SECONDS);
+    for (int second = 0; second < NUM_SECONDS; second++)
+    {
+        const struct timespec request = { .tv_sec = 1, .tv_nsec = 0 };
+        (void) clock_nanosleep(CLOCK_MONOTONIC, 0 /*flags*/, &request, NULL /*remain*/);
+
+        aaudio_stream_state_t state;
+        result = AAudioStream_waitForStateChange(player.getStream(),
+                                                 AAUDIO_STREAM_STATE_CLOSED,
+                                                 &state,
+                                                 0);
+        if (result != AAUDIO_OK) {
+            fprintf(stderr, "ERROR - AAudioStream_waitForStateChange() returned %d\n", result);
+            goto error;
+        }
+        if (state != AAUDIO_STREAM_STATE_STARTING && state != AAUDIO_STREAM_STATE_STARTED) {
+            printf("Stream state is %d %s!\n", state, AAudio_convertStreamStateToText(state));
+            break;
+        }
+        printf("framesWritten = %d\n", (int) AAudioStream_getFramesWritten(player.getStream()));
+    }
+    printf("Woke up now.\n");
+
+    printf("call stop()\n");
+    result = player.stop();
+    if (result != AAUDIO_OK) {
+        goto error;
+    }
+    printf("call close()\n");
+    result = player.close();
+    if (result != AAUDIO_OK) {
+        goto error;
+    }
+
+    if (myData.schedulerChecked) {
+        printf("scheduler = 0x%08x, SCHED_FIFO = 0x%08X\n",
+               myData.scheduler,
+               SCHED_FIFO);
+    }
+
+    printf("SUCCESS\n");
+    return EXIT_SUCCESS;
+error:
+    player.close();
+    printf("exiting - AAudio result = %d = %s\n", result, AAudio_convertResultToText(result));
+    return EXIT_FAILURE;
+}
+
diff --git a/media/libaaudio/examples/write_sine/static/Android.mk b/media/libaaudio/examples/write_sine/static/Android.mk
new file mode 100644
index 0000000..40dca34
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/static/Android.mk
@@ -0,0 +1,38 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := examples
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/src \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/examples/utils
+
+# NDK recommends using this kind of relative path instead of an absolute path.
+LOCAL_SRC_FILES:= ../src/write_sine.cpp
+
+LOCAL_SHARED_LIBRARIES := libaudioutils libmedia \
+                          libbinder libcutils libutils \
+                          libaudioclient liblog libtinyalsa libaudiomanager
+LOCAL_STATIC_LIBRARIES := libaaudio
+
+LOCAL_MODULE := write_sine
+include $(BUILD_EXECUTABLE)
+
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/examples/utils
+
+LOCAL_SRC_FILES:= ../src/write_sine_callback.cpp
+
+LOCAL_SHARED_LIBRARIES := libaudioutils libmedia \
+                          libbinder libcutils libutils \
+                          libaudioclient liblog libaudiomanager
+LOCAL_STATIC_LIBRARIES := libaaudio
+
+LOCAL_MODULE := write_sine_callback
+include $(BUILD_EXECUTABLE)
diff --git a/media/libaaudio/examples/write_sine/static/README.md b/media/libaaudio/examples/write_sine/static/README.md
new file mode 100644
index 0000000..6e26d7b
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/static/README.md
@@ -0,0 +1,2 @@
+Makefile for building simple command line examples.
+They link with AAudio as a static library.
diff --git a/media/libaaudio/include/aaudio/AAudio.h b/media/libaaudio/include/aaudio/AAudio.h
new file mode 100644
index 0000000..e1886ac
--- /dev/null
+++ b/media/libaaudio/include/aaudio/AAudio.h
@@ -0,0 +1,829 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Audio
+ * @{
+ */
+
+/**
+ * @file AAudio.h
+ */
+
+/**
+ * This is the 'C' API for AAudio.
+ */
+#ifndef AAUDIO_AAUDIO_H
+#define AAUDIO_AAUDIO_H
+
+#include <time.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * This is used to represent a value that has not been specified.
+ * For example, an application could use AAUDIO_UNSPECIFIED to indicate
+ * that is did not not care what the specific value of a parameter was
+ * and would accept whatever it was given.
+ */
+#define AAUDIO_UNSPECIFIED           0
+
+enum {
+    AAUDIO_DIRECTION_OUTPUT,
+    AAUDIO_DIRECTION_INPUT
+};
+typedef int32_t aaudio_direction_t;
+
+enum {
+    AAUDIO_FORMAT_INVALID = -1,
+    AAUDIO_FORMAT_UNSPECIFIED = 0,
+    AAUDIO_FORMAT_PCM_I16,
+    AAUDIO_FORMAT_PCM_FLOAT
+};
+typedef int32_t aaudio_format_t;
+
+enum {
+    AAUDIO_OK,
+    AAUDIO_ERROR_BASE = -900, // TODO review
+    AAUDIO_ERROR_DISCONNECTED,
+    AAUDIO_ERROR_ILLEGAL_ARGUMENT,
+    // reserved
+    AAUDIO_ERROR_INTERNAL = AAUDIO_ERROR_ILLEGAL_ARGUMENT + 2,
+    AAUDIO_ERROR_INVALID_STATE,
+    // reserved
+    // reserved
+    AAUDIO_ERROR_INVALID_HANDLE = AAUDIO_ERROR_INVALID_STATE + 3,
+    // reserved
+    AAUDIO_ERROR_UNIMPLEMENTED = AAUDIO_ERROR_INVALID_HANDLE + 2,
+    AAUDIO_ERROR_UNAVAILABLE,
+    AAUDIO_ERROR_NO_FREE_HANDLES,
+    AAUDIO_ERROR_NO_MEMORY,
+    AAUDIO_ERROR_NULL,
+    AAUDIO_ERROR_TIMEOUT,
+    AAUDIO_ERROR_WOULD_BLOCK,
+    AAUDIO_ERROR_INVALID_FORMAT,
+    AAUDIO_ERROR_OUT_OF_RANGE,
+    AAUDIO_ERROR_NO_SERVICE,
+    AAUDIO_ERROR_INVALID_RATE
+};
+typedef int32_t  aaudio_result_t;
+
+enum
+{
+    AAUDIO_STREAM_STATE_UNINITIALIZED = 0,
+    AAUDIO_STREAM_STATE_UNKNOWN,
+    AAUDIO_STREAM_STATE_OPEN,
+    AAUDIO_STREAM_STATE_STARTING,
+    AAUDIO_STREAM_STATE_STARTED,
+    AAUDIO_STREAM_STATE_PAUSING,
+    AAUDIO_STREAM_STATE_PAUSED,
+    AAUDIO_STREAM_STATE_FLUSHING,
+    AAUDIO_STREAM_STATE_FLUSHED,
+    AAUDIO_STREAM_STATE_STOPPING,
+    AAUDIO_STREAM_STATE_STOPPED,
+    AAUDIO_STREAM_STATE_CLOSING,
+    AAUDIO_STREAM_STATE_CLOSED,
+    AAUDIO_STREAM_STATE_DISCONNECTED
+};
+typedef int32_t aaudio_stream_state_t;
+
+
+enum {
+    /**
+     * This will be the only stream using a particular source or sink.
+     * This mode will provide the lowest possible latency.
+     * You should close EXCLUSIVE streams immediately when you are not using them.
+     */
+            AAUDIO_SHARING_MODE_EXCLUSIVE,
+    /**
+     * Multiple applications will be mixed by the AAudio Server.
+     * This will have higher latency than the EXCLUSIVE mode.
+     */
+            AAUDIO_SHARING_MODE_SHARED
+};
+typedef int32_t aaudio_sharing_mode_t;
+
+
+enum {
+    /**
+     * No particular performance needs. Default.
+     */
+            AAUDIO_PERFORMANCE_MODE_NONE = 10,
+
+    /**
+     * Extending battery life is most important.
+     */
+            AAUDIO_PERFORMANCE_MODE_POWER_SAVING,
+
+    /**
+     * Reducing latency is most important.
+     */
+            AAUDIO_PERFORMANCE_MODE_LOW_LATENCY
+};
+typedef int32_t aaudio_performance_mode_t;
+
+typedef struct AAudioStreamStruct         AAudioStream;
+typedef struct AAudioStreamBuilderStruct  AAudioStreamBuilder;
+
+#ifndef AAUDIO_API
+#define AAUDIO_API /* export this symbol */
+#endif
+
+// ============================================================
+// Audio System
+// ============================================================
+
+/**
+ * The text is the ASCII symbol corresponding to the returnCode,
+ * or an English message saying the returnCode is unrecognized.
+ * This is intended for developers to use when debugging.
+ * It is not for display to users.
+ *
+ * @return pointer to a text representation of an AAudio result code.
+ */
+AAUDIO_API const char * AAudio_convertResultToText(aaudio_result_t returnCode);
+
+/**
+ * The text is the ASCII symbol corresponding to the stream state,
+ * or an English message saying the state is unrecognized.
+ * This is intended for developers to use when debugging.
+ * It is not for display to users.
+ *
+ * @return pointer to a text representation of an AAudio state.
+ */
+AAUDIO_API const char * AAudio_convertStreamStateToText(aaudio_stream_state_t state);
+
+// ============================================================
+// StreamBuilder
+// ============================================================
+
+/**
+ * Create a StreamBuilder that can be used to open a Stream.
+ *
+ * The deviceId is initially unspecified, meaning that the current default device will be used.
+ *
+ * The default direction is AAUDIO_DIRECTION_OUTPUT.
+ * The default sharing mode is AAUDIO_SHARING_MODE_SHARED.
+ * The data format, samplesPerFrames and sampleRate are unspecified and will be
+ * chosen by the device when it is opened.
+ *
+ * AAudioStreamBuilder_delete() must be called when you are done using the builder.
+ */
+AAUDIO_API aaudio_result_t AAudio_createStreamBuilder(AAudioStreamBuilder** builder);
+
+/**
+ * Request an audio device identified device using an ID.
+ * On Android, for example, the ID could be obtained from the Java AudioManager.
+ *
+ * The default, if you do not call this function, is AAUDIO_UNSPECIFIED,
+ * in which case the primary device will be used.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param deviceId device identifier or AAUDIO_UNSPECIFIED
+ */
+AAUDIO_API void AAudioStreamBuilder_setDeviceId(AAudioStreamBuilder* builder,
+                                                     int32_t deviceId);
+
+/**
+ * Request a sample rate in Hertz.
+ *
+ * The default, if you do not call this function, is AAUDIO_UNSPECIFIED.
+ * An optimal value will then be chosen when the stream is opened.
+ * After opening a stream with an unspecified value, the application must
+ * query for the actual value, which may vary by device.
+ *
+ * If an exact value is specified then an opened stream will use that value.
+ * If a stream cannot be opened with the specified value then the open will fail.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param sampleRate frames per second. Common rates include 44100 and 48000 Hz.
+ */
+AAUDIO_API void AAudioStreamBuilder_setSampleRate(AAudioStreamBuilder* builder,
+                                                       int32_t sampleRate);
+
+/**
+ * Request a number of channels for the stream.
+ *
+ * The default, if you do not call this function, is AAUDIO_UNSPECIFIED.
+ * An optimal value will then be chosen when the stream is opened.
+ * After opening a stream with an unspecified value, the application must
+ * query for the actual value, which may vary by device.
+ *
+ * If an exact value is specified then an opened stream will use that value.
+ * If a stream cannot be opened with the specified value then the open will fail.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param channelCount Number of channels desired.
+ */
+AAUDIO_API void AAudioStreamBuilder_setChannelCount(AAudioStreamBuilder* builder,
+                                                   int32_t channelCount);
+
+/**
+ *
+ * @deprecated use AAudioStreamBuilder_setChannelCount()
+ */
+// TODO remove as soon as the NDK and OS are in sync, before RC1
+AAUDIO_API void AAudioStreamBuilder_setSamplesPerFrame(AAudioStreamBuilder* builder,
+                                                       int32_t samplesPerFrame);
+
+/**
+ * Request a sample data format, for example AAUDIO_FORMAT_PCM_I16.
+ *
+ * The default, if you do not call this function, is AAUDIO_UNSPECIFIED.
+ * An optimal value will then be chosen when the stream is opened.
+ * After opening a stream with an unspecified value, the application must
+ * query for the actual value, which may vary by device.
+ *
+ * If an exact value is specified then an opened stream will use that value.
+ * If a stream cannot be opened with the specified value then the open will fail.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param format common formats are AAUDIO_FORMAT_PCM_FLOAT and AAUDIO_FORMAT_PCM_I16.
+ */
+AAUDIO_API void AAudioStreamBuilder_setFormat(AAudioStreamBuilder* builder,
+                                                   aaudio_format_t format);
+
+/**
+ * Request a mode for sharing the device.
+ *
+ * The default, if you do not call this function, is AAUDIO_SHARING_MODE_SHARED.
+ *
+ * The requested sharing mode may not be available.
+ * The application can query for the actual mode after the stream is opened.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param sharingMode AAUDIO_SHARING_MODE_SHARED or AAUDIO_SHARING_MODE_EXCLUSIVE
+ */
+AAUDIO_API void AAudioStreamBuilder_setSharingMode(AAudioStreamBuilder* builder,
+                                                        aaudio_sharing_mode_t sharingMode);
+
+/**
+ * Request the direction for a stream.
+ *
+ * The default, if you do not call this function, is AAUDIO_DIRECTION_OUTPUT.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param direction AAUDIO_DIRECTION_OUTPUT or AAUDIO_DIRECTION_INPUT
+ */
+AAUDIO_API void AAudioStreamBuilder_setDirection(AAudioStreamBuilder* builder,
+                                                            aaudio_direction_t direction);
+
+/**
+ * Set the requested buffer capacity in frames.
+ * The final AAudioStream capacity may differ, but will probably be at least this big.
+ *
+ * The default, if you do not call this function, is AAUDIO_UNSPECIFIED.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param numFrames the desired buffer capacity in frames or AAUDIO_UNSPECIFIED
+ */
+AAUDIO_API void AAudioStreamBuilder_setBufferCapacityInFrames(AAudioStreamBuilder* builder,
+                                                                 int32_t numFrames);
+
+/**
+ * Set the requested performance mode.
+ *
+ * The default, if you do not call this function, is AAUDIO_PERFORMANCE_MODE_NONE.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param mode the desired performance mode, eg. AAUDIO_PERFORMANCE_MODE_LOW_LATENCY
+ */
+AAUDIO_API void AAudioStreamBuilder_setPerformanceMode(AAudioStreamBuilder* builder,
+                                                aaudio_performance_mode_t mode);
+
+/**
+ * Return one of these values from the data callback function.
+ */
+enum {
+
+    /**
+     * Continue calling the callback.
+     */
+    AAUDIO_CALLBACK_RESULT_CONTINUE = 0,
+
+    /**
+     * Stop calling the callback.
+     *
+     * The application will still need to call AAudioStream_requestPause()
+     * or AAudioStream_requestStop().
+     */
+    AAUDIO_CALLBACK_RESULT_STOP,
+
+};
+typedef int32_t aaudio_data_callback_result_t;
+
+/**
+ * Prototype for the data function that is passed to AAudioStreamBuilder_setDataCallback().
+ *
+ * For an output stream, this function should render and write numFrames of data
+ * in the streams current data format to the audioData buffer.
+ *
+ * For an input stream, this function should read and process numFrames of data
+ * from the audioData buffer.
+ *
+ * Note that this callback function should be considered a "real-time" function.
+ * It must not do anything that could cause an unbounded delay because that can cause the
+ * audio to glitch or pop.
+ *
+ * These are things the function should NOT do:
+ * <ul>
+ * <li>allocate memory using, for example, malloc() or new</li>
+ * <li>any file operations such as opening, closing, reading or writing</li>
+ * <li>any network operations such as streaming</li>
+ * <li>use any mutexes or other synchronization primitives</li>
+ * <li>sleep</li>
+ * </ul>
+ *
+ * If you need to move data, eg. MIDI commands, in or out of the callback function then
+ * we recommend the use of non-blocking techniques such as an atomic FIFO.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @param userData the same address that was passed to AAudioStreamBuilder_setCallback()
+ * @param audioData a pointer to the audio data
+ * @param numFrames the number of frames to be processed
+ * @return AAUDIO_CALLBACK_RESULT_*
+ */
+typedef aaudio_data_callback_result_t (*AAudioStream_dataCallback)(
+        AAudioStream *stream,
+        void *userData,
+        void *audioData,
+        int32_t numFrames);
+
+/**
+ * Request that AAudio call this functions when the stream is running.
+ *
+ * Note that when using this callback, the audio data will be passed in or out
+ * of the function as an argument.
+ * So you cannot call AAudioStream_write() or AAudioStream_read() on the same stream
+ * that has an active data callback.
+ *
+ * The callback function will start being called after AAudioStream_requestStart() is called.
+ * It will stop being called after AAudioStream_requestPause() or
+ * AAudioStream_requestStop() is called.
+ *
+ * This callback function will be called on a real-time thread owned by AAudio. See
+ * {@link AAudioStream_dataCallback} for more information.
+ *
+ * Note that the AAudio callbacks will never be called simultaneously from multiple threads.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param callback pointer to a function that will process audio data.
+ * @param userData pointer to an application data structure that will be passed
+ *          to the callback functions.
+ */
+AAUDIO_API void AAudioStreamBuilder_setDataCallback(AAudioStreamBuilder* builder,
+                                                 AAudioStream_dataCallback callback,
+                                                 void *userData);
+
+/**
+ * Set the requested data callback buffer size in frames.
+ * See {@link AAudioStream_dataCallback}.
+ *
+ * The default, if you do not call this function, is AAUDIO_UNSPECIFIED.
+ *
+ * For the lowest possible latency, do not call this function. AAudio will then
+ * call the dataProc callback function with whatever size is optimal.
+ * That size may vary from one callback to another.
+ *
+ * Only use this function if the application requires a specific number of frames for processing.
+ * The application might, for example, be using an FFT that requires
+ * a specific power-of-two sized buffer.
+ *
+ * AAudio may need to add additional buffering in order to adapt between the internal
+ * buffer size and the requested buffer size.
+ *
+ * If you do call this function then the requested size should be less than
+ * half the buffer capacity, to allow double buffering.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param numFrames the desired buffer size in frames or AAUDIO_UNSPECIFIED
+ */
+AAUDIO_API void AAudioStreamBuilder_setFramesPerDataCallback(AAudioStreamBuilder* builder,
+                                                             int32_t numFrames);
+
+/**
+ * Prototype for the callback function that is passed to
+ * AAudioStreamBuilder_setErrorCallback().
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @param userData the same address that was passed to AAudioStreamBuilder_setErrorCallback()
+ * @param error an AAUDIO_ERROR_* value.
+ */
+typedef void (*AAudioStream_errorCallback)(
+        AAudioStream *stream,
+        void *userData,
+        aaudio_result_t error);
+
+/**
+ * Request that AAudio call this functions if any error occurs on a callback thread.
+ *
+ * It will be called, for example, if a headset or a USB device is unplugged causing the stream's
+ * device to be unavailable.
+ * In response, this function could signal or launch another thread to reopen a
+ * stream on another device. Do not reopen the stream in this callback.
+ *
+ * This will not be called because of actions by the application, such as stopping
+ * or closing a stream.
+ *
+ * Another possible cause of error would be a timeout or an unanticipated internal error.
+ *
+ * Note that the AAudio callbacks will never be called simultaneously from multiple threads.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param callback pointer to a function that will be called if an error occurs.
+ * @param userData pointer to an application data structure that will be passed
+ *          to the callback functions.
+ */
+AAUDIO_API void AAudioStreamBuilder_setErrorCallback(AAudioStreamBuilder* builder,
+                                                AAudioStream_errorCallback callback,
+                                                void *userData);
+
+/**
+ * Open a stream based on the options in the StreamBuilder.
+ *
+ * AAudioStream_close must be called when finished with the stream to recover
+ * the memory and to free the associated resources.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param stream pointer to a variable to receive the new stream reference
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStreamBuilder_openStream(AAudioStreamBuilder* builder,
+                                                     AAudioStream** stream);
+
+/**
+ * Delete the resources associated with the StreamBuilder.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStreamBuilder_delete(AAudioStreamBuilder* builder);
+
+// ============================================================
+// Stream Control
+// ============================================================
+
+/**
+ * Free the resources associated with a stream created by AAudioStreamBuilder_openStream()
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStream_close(AAudioStream* stream);
+
+/**
+ * Asynchronously request to start playing the stream. For output streams, one should
+ * write to the stream to fill the buffer before starting.
+ * Otherwise it will underflow.
+ * After this call the state will be in AAUDIO_STREAM_STATE_STARTING or AAUDIO_STREAM_STATE_STARTED.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStream_requestStart(AAudioStream* stream);
+
+/**
+ * Asynchronous request for the stream to pause.
+ * Pausing a stream will freeze the data flow but not flush any buffers.
+ * Use AAudioStream_Start() to resume playback after a pause.
+ * After this call the state will be in AAUDIO_STREAM_STATE_PAUSING or AAUDIO_STREAM_STATE_PAUSED.
+ *
+ * This will return AAUDIO_ERROR_UNIMPLEMENTED for input streams.
+ * For input streams use AAudioStream_requestStop().
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStream_requestPause(AAudioStream* stream);
+
+/**
+ * Asynchronous request for the stream to flush.
+ * Flushing will discard any pending data.
+ * This call only works if the stream is pausing or paused. TODO review
+ * Frame counters are not reset by a flush. They may be advanced.
+ * After this call the state will be in AAUDIO_STREAM_STATE_FLUSHING or AAUDIO_STREAM_STATE_FLUSHED.
+ *
+ * This will return AAUDIO_ERROR_UNIMPLEMENTED for input streams.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStream_requestFlush(AAudioStream* stream);
+
+/**
+ * Asynchronous request for the stream to stop.
+ * The stream will stop after all of the data currently buffered has been played.
+ * After this call the state will be in AAUDIO_STREAM_STATE_STOPPING or AAUDIO_STREAM_STATE_STOPPED.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStream_requestStop(AAudioStream* stream);
+
+/**
+ * Query the current state of the client, eg. AAUDIO_STREAM_STATE_PAUSING
+ *
+ * This function will immediately return the state without updating the state.
+ * If you want to update the client state based on the server state then
+ * call AAudioStream_waitForStateChange() with currentState
+ * set to AAUDIO_STREAM_STATE_UNKNOWN and a zero timeout.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ */
+AAUDIO_API aaudio_stream_state_t AAudioStream_getState(AAudioStream* stream);
+
+/**
+ * Wait until the current state no longer matches the input state.
+ *
+ * This will update the current client state.
+ *
+ * <pre><code>
+ * aaudio_stream_state_t currentState;
+ * aaudio_result_t result = AAudioStream_getState(stream, &currentState);
+ * while (result == AAUDIO_OK && currentState != AAUDIO_STREAM_STATE_PAUSING) {
+ *     result = AAudioStream_waitForStateChange(
+ *                                   stream, currentState, &currentState, MY_TIMEOUT_NANOS);
+ * }
+ * </code></pre>
+ *
+ * @param stream A reference provided by AAudioStreamBuilder_openStream()
+ * @param inputState The state we want to avoid.
+ * @param nextState Pointer to a variable that will be set to the new state.
+ * @param timeoutNanoseconds Maximum number of nanoseconds to wait for completion.
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t AAudioStream_waitForStateChange(AAudioStream* stream,
+                                            aaudio_stream_state_t inputState,
+                                            aaudio_stream_state_t *nextState,
+                                            int64_t timeoutNanoseconds);
+
+// ============================================================
+// Stream I/O
+// ============================================================
+
+/**
+ * Read data from the stream.
+ *
+ * The call will wait until the read is complete or until it runs out of time.
+ * If timeoutNanos is zero then this call will not wait.
+ *
+ * Note that timeoutNanoseconds is a relative duration in wall clock time.
+ * Time will not stop if the thread is asleep.
+ * So it will be implemented using CLOCK_BOOTTIME.
+ *
+ * This call is "strong non-blocking" unless it has to wait for data.
+ *
+ * @param stream A stream created using AAudioStreamBuilder_openStream().
+ * @param buffer The address of the first sample.
+ * @param numFrames Number of frames to read. Only complete frames will be written.
+ * @param timeoutNanoseconds Maximum number of nanoseconds to wait for completion.
+ * @return The number of frames actually read or a negative error.
+ */
+AAUDIO_API aaudio_result_t AAudioStream_read(AAudioStream* stream,
+                               void *buffer,
+                               int32_t numFrames,
+                               int64_t timeoutNanoseconds);
+
+/**
+ * Write data to the stream.
+ *
+ * The call will wait until the write is complete or until it runs out of time.
+ * If timeoutNanos is zero then this call will not wait.
+ *
+ * Note that timeoutNanoseconds is a relative duration in wall clock time.
+ * Time will not stop if the thread is asleep.
+ * So it will be implemented using CLOCK_BOOTTIME.
+ *
+ * This call is "strong non-blocking" unless it has to wait for room in the buffer.
+ *
+ * @param stream A stream created using AAudioStreamBuilder_openStream().
+ * @param buffer The address of the first sample.
+ * @param numFrames Number of frames to write. Only complete frames will be written.
+ * @param timeoutNanoseconds Maximum number of nanoseconds to wait for completion.
+ * @return The number of frames actually written or a negative error.
+ */
+AAUDIO_API aaudio_result_t AAudioStream_write(AAudioStream* stream,
+                               const void *buffer,
+                               int32_t numFrames,
+                               int64_t timeoutNanoseconds);
+
+// ============================================================
+// Stream - queries
+// ============================================================
+
+/**
+ * This can be used to adjust the latency of the buffer by changing
+ * the threshold where blocking will occur.
+ * By combining this with AAudioStream_getXRunCount(), the latency can be tuned
+ * at run-time for each device.
+ *
+ * This cannot be set higher than AAudioStream_getBufferCapacityInFrames().
+ *
+ * Note that you will probably not get the exact size you request.
+ * Call AAudioStream_getBufferSizeInFrames() to see what the actual final size is.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @param numFrames requested number of frames that can be filled without blocking
+ * @return actual buffer size in frames or a negative error
+ */
+AAUDIO_API aaudio_result_t AAudioStream_setBufferSizeInFrames(AAudioStream* stream,
+                                                      int32_t numFrames);
+
+/**
+ * Query the maximum number of frames that can be filled without blocking.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return buffer size in frames.
+ */
+AAUDIO_API int32_t AAudioStream_getBufferSizeInFrames(AAudioStream* stream);
+
+/**
+ * Query the number of frames that the application should read or write at
+ * one time for optimal performance. It is OK if an application writes
+ * a different number of frames. But the buffer size may need to be larger
+ * in order to avoid underruns or overruns.
+ *
+ * Note that this may or may not match the actual device burst size.
+ * For some endpoints, the burst size can vary dynamically.
+ * But these tend to be devices with high latency.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return burst size
+ */
+AAUDIO_API int32_t AAudioStream_getFramesPerBurst(AAudioStream* stream);
+
+/**
+ * Query maximum buffer capacity in frames.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return  buffer capacity in frames
+ */
+AAUDIO_API int32_t AAudioStream_getBufferCapacityInFrames(AAudioStream* stream);
+
+/**
+ * Query the size of the buffer that will be passed to the dataProc callback
+ * in the numFrames parameter.
+ *
+ * This call can be used if the application needs to know the value of numFrames before
+ * the stream is started. This is not normally necessary.
+ *
+ * If a specific size was requested by calling AAudioStreamBuilder_setCallbackSizeInFrames()
+ * then this will be the same size.
+ *
+ * If AAudioStreamBuilder_setCallbackSizeInFrames() was not called then this will
+ * return the size chosen by AAudio, or AAUDIO_UNSPECIFIED.
+ *
+ * AAUDIO_UNSPECIFIED indicates that the callback buffer size for this stream
+ * may vary from one dataProc callback to the next.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return callback buffer size in frames or AAUDIO_UNSPECIFIED
+ */
+AAUDIO_API int32_t AAudioStream_getFramesPerDataCallback(AAudioStream* stream);
+
+/**
+ * An XRun is an Underrun or an Overrun.
+ * During playing, an underrun will occur if the stream is not written in time
+ * and the system runs out of valid data.
+ * During recording, an overrun will occur if the stream is not read in time
+ * and there is no place to put the incoming data so it is discarded.
+ *
+ * An underrun or overrun can cause an audible "pop" or "glitch".
+ *
+ * Note that some INPUT devices may not support this function.
+ * In that case a 0 will always be returned.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return the underrun or overrun count
+ */
+AAUDIO_API int32_t AAudioStream_getXRunCount(AAudioStream* stream);
+
+/**
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return actual sample rate
+ */
+AAUDIO_API int32_t AAudioStream_getSampleRate(AAudioStream* stream);
+
+/**
+ * A stream has one or more channels of data.
+ * A frame will contain one sample for each channel.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return actual number of channels
+ */
+AAUDIO_API int32_t AAudioStream_getChannelCount(AAudioStream* stream);
+
+/**
+ * The samplesPerFrame is also known as channelCount.
+ *
+ * @deprecated use AAudioStream_getChannelCount()
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return actual samples per frame
+ */
+AAUDIO_API int32_t AAudioStream_getSamplesPerFrame(AAudioStream* stream);
+
+/**
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return actual device ID
+ */
+AAUDIO_API int32_t AAudioStream_getDeviceId(AAudioStream* stream);
+
+/**
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return actual data format
+ */
+AAUDIO_API aaudio_format_t AAudioStream_getFormat(AAudioStream* stream);
+
+/**
+ * Provide actual sharing mode.
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return  actual sharing mode
+ */
+AAUDIO_API aaudio_sharing_mode_t AAudioStream_getSharingMode(AAudioStream* stream);
+
+/**
+ * Get the performance mode used by the stream.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ */
+AAUDIO_API aaudio_performance_mode_t AAudioStream_getPerformanceMode(AAudioStream* stream);
+
+/**
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return direction
+ */
+AAUDIO_API aaudio_direction_t AAudioStream_getDirection(AAudioStream* stream);
+
+/**
+ * Passes back the number of frames that have been written since the stream was created.
+ * For an output stream, this will be advanced by the application calling write().
+ * For an input stream, this will be advanced by the endpoint.
+ *
+ * The frame position is monotonically increasing.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return frames written
+ */
+AAUDIO_API int64_t AAudioStream_getFramesWritten(AAudioStream* stream);
+
+/**
+ * Passes back the number of frames that have been read since the stream was created.
+ * For an output stream, this will be advanced by the endpoint.
+ * For an input stream, this will be advanced by the application calling read().
+ *
+ * The frame position is monotonically increasing.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return frames read
+ */
+AAUDIO_API int64_t AAudioStream_getFramesRead(AAudioStream* stream);
+
+/**
+ * Passes back the time at which a particular frame was presented.
+ * This can be used to synchronize audio with video or MIDI.
+ * It can also be used to align a recorded stream with a playback stream.
+ *
+ * Timestamps are only valid when the stream is in AAUDIO_STREAM_STATE_STARTED.
+ * AAUDIO_ERROR_INVALID_STATE will be returned if the stream is not started.
+ * Note that because requestStart() is asynchronous, timestamps will not be valid until
+ * a short time after calling requestStart().
+ * So AAUDIO_ERROR_INVALID_STATE should not be considered a fatal error.
+ * Just try calling again later.
+ *
+ * If an error occurs, then the position and time will not be modified.
+ *
+ * The position and time passed back are monotonically increasing.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @param clockid AAUDIO_CLOCK_MONOTONIC or AAUDIO_CLOCK_BOOTTIME
+ * @param framePosition pointer to a variable to receive the position
+ * @param timeNanoseconds pointer to a variable to receive the time
+ * @return AAUDIO_OK or a negative error
+ */
+AAUDIO_API aaudio_result_t AAudioStream_getTimestamp(AAudioStream* stream,
+                                      clockid_t clockid,
+                                      int64_t *framePosition,
+                                      int64_t *timeNanoseconds);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //AAUDIO_AAUDIO_H
+
+/** @} */
diff --git a/media/libaaudio/include/aaudio/AAudioTesting.h b/media/libaaudio/include/aaudio/AAudioTesting.h
new file mode 100644
index 0000000..02ec411
--- /dev/null
+++ b/media/libaaudio/include/aaudio/AAudioTesting.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * This is test support for AAudio.
+ */
+#ifndef AAUDIO_AAUDIO_TESTING_H
+#define AAUDIO_AAUDIO_TESTING_H
+
+#include <aaudio/AAudio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/************************************************************************************
+ * The definitions below are only for testing. Do not use them in an application.
+ * They may change or be removed at any time.
+ ************************************************************************************/
+
+enum {
+    /**
+     * Related feature is disabled and never used.
+     */
+    AAUDIO_POLICY_NEVER = 1,
+
+    /**
+     * If related feature works then use it. Otherwise fall back to something else.
+     */
+     AAUDIO_POLICY_AUTO,
+
+    /**
+     * Related feature must be used. If not available then fail.
+     */
+    AAUDIO_POLICY_ALWAYS
+};
+typedef int32_t aaudio_policy_t;
+
+/**
+ * Control whether AAudioStreamBuilder_openStream() will use the new MMAP data path
+ * or the older "Legacy" data path.
+ *
+ * This will only affect the current process.
+ *
+ * If unspecified then the policy will be based on system properties or configuration.
+ *
+ * @note This is only for testing. Do not use this in an application.
+ * It may change or be removed at any time.
+ *
+ * @param policy AAUDIO_UNSPECIFIED, AAUDIO_POLICY_NEVER, AAUDIO_POLICY_AUTO, or AAUDIO_POLICY_ALWAYS
+ * @return AAUDIO_OK or a negative error
+ */
+AAUDIO_API aaudio_result_t AAudio_setMMapPolicy(aaudio_policy_t policy);
+
+/**
+ * Get the current MMAP policy set by AAudio_setMMapPolicy().
+ *
+ * @note This is only for testing. Do not use this in an application.
+ * It may change or be removed at any time.
+ *
+ * @return current policy
+ */
+AAUDIO_API aaudio_policy_t AAudio_getMMapPolicy();
+
+/**
+ * Return true if the stream uses the MMAP data path versus the legacy path.
+ *
+ * @note This is only for testing. Do not use this in an application.
+ * It may change or be removed at any time.
+ *
+ * @return true if the stream uses ther MMAP data path
+ */
+AAUDIO_API bool AAudioStream_isMMapUsed(AAudioStream* stream);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //AAUDIO_AAUDIO_TESTING_H
+
+/** @} */
diff --git a/media/libaaudio/include/aaudio/NOTICE b/media/libaaudio/include/aaudio/NOTICE
new file mode 100644
index 0000000..d6c0922
--- /dev/null
+++ b/media/libaaudio/include/aaudio/NOTICE
@@ -0,0 +1,13 @@
+Copyright (C) 2016 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/media/libaaudio/include/aaudio/README.md b/media/libaaudio/include/aaudio/README.md
new file mode 100644
index 0000000..8c4ae51
--- /dev/null
+++ b/media/libaaudio/include/aaudio/README.md
@@ -0,0 +1,4 @@
+AAudio Audio headers
+
+This folder contains the public header files.
+
diff --git a/media/libaaudio/libaaudio.map.txt b/media/libaaudio/libaaudio.map.txt
new file mode 100644
index 0000000..2ba5250
--- /dev/null
+++ b/media/libaaudio/libaaudio.map.txt
@@ -0,0 +1,51 @@
+LIBAAUDIO {
+  global:
+    AAudio_convertResultToText;
+    AAudio_convertStreamStateToText;
+    AAudio_createStreamBuilder;
+    AAudio_getMMapPolicy;
+    AAudio_setMMapPolicy;
+    AAudioStreamBuilder_setPerformanceMode;
+    AAudioStreamBuilder_setDeviceId;
+    AAudioStreamBuilder_setDataCallback;
+    AAudioStreamBuilder_setErrorCallback;
+    AAudioStreamBuilder_setFramesPerDataCallback;
+    AAudioStreamBuilder_setSampleRate;
+    AAudioStreamBuilder_setSamplesPerFrame;
+    AAudioStreamBuilder_setChannelCount;
+    AAudioStreamBuilder_setFormat;
+    AAudioStreamBuilder_setSharingMode;
+    AAudioStreamBuilder_setDirection;
+    AAudioStreamBuilder_setBufferCapacityInFrames;
+    AAudioStreamBuilder_openStream;
+    AAudioStreamBuilder_delete;
+    AAudioStream_close;
+    AAudioStream_requestStart;
+    AAudioStream_requestPause;
+    AAudioStream_requestFlush;
+    AAudioStream_requestStop;
+    AAudioStream_getState;
+    AAudioStream_waitForStateChange;
+    AAudioStream_read;
+    AAudioStream_write;
+    AAudioStream_setBufferSizeInFrames;
+    AAudioStream_getBufferSizeInFrames;
+    AAudioStream_getFramesPerDataCallback;
+    AAudioStream_getFramesPerBurst;
+    AAudioStream_getBufferCapacityInFrames;
+    AAudioStream_getXRunCount;
+    AAudioStream_getSampleRate;
+    AAudioStream_getSamplesPerFrame;
+    AAudioStream_getChannelCount;
+    AAudioStream_getPerformanceMode;
+    AAudioStream_getDeviceId;
+    AAudioStream_getFormat;
+    AAudioStream_getSharingMode;
+    AAudioStream_getDirection;
+    AAudioStream_getFramesWritten;
+    AAudioStream_getFramesRead;
+    AAudioStream_getTimestamp;
+    AAudioStream_isMMapUsed;
+  local:
+    *;
+};
diff --git a/media/libaaudio/scripts/convert_oboe_aaudio.sh b/media/libaaudio/scripts/convert_oboe_aaudio.sh
new file mode 100755
index 0000000..2bf025a
--- /dev/null
+++ b/media/libaaudio/scripts/convert_oboe_aaudio.sh
@@ -0,0 +1,52 @@
+#!/bin/bash
+# Use SED to convert the Oboe API to the AAudio API
+
+echo "Convert Oboe names to AAudio names"
+
+echo "Top is ${ANDROID_BUILD_TOP}"
+LIBOBOE_DIR=${ANDROID_BUILD_TOP}/frameworks/av/media/liboboe
+echo "LIBOBOE_DIR is ${LIBOBOE_DIR}"
+OBOESERVICE_DIR=${ANDROID_BUILD_TOP}/frameworks/av/services/oboeservice
+echo "OBOESERVICE_DIR is ${OBOESERVICE_DIR}"
+OBOETEST_DIR=${ANDROID_BUILD_TOP}/cts/tests/tests/nativemedia/aaudio/src/
+echo "OBOETEST_DIR is ${OBOETEST_DIR}"
+
+function convertPathPattern {
+    path=$1
+    pattern=$2
+    find $path -type f  -name $pattern -exec sed -i -f ${LIBOBOE_DIR}/scripts/oboe_to_aaudio.sed {} \;
+}
+
+function convertPath {
+    path=$1
+    convertPathPattern $1 '*.cpp'
+    convertPathPattern $1 '*.h'
+    # the mk match does not work!
+    convertPathPattern $1 '*.mk'
+    convertPathPattern $1 '*.md'
+    convertPathPattern $1 '*.bp'
+}
+
+#convertPath ${LIBOBOE_DIR}/examples
+#convertPath ${LIBOBOE_DIR}/include
+#convertPath ${LIBOBOE_DIR}/src
+#convertPath ${LIBOBOE_DIR}/tests
+convertPath ${LIBOBOE_DIR}
+convertPathPattern ${LIBOBOE_DIR} Android.mk
+convertPathPattern ${LIBOBOE_DIR} liboboe.map.txt
+
+convertPath ${OBOESERVICE_DIR}
+convertPathPattern ${OBOESERVICE_DIR} Android.mk
+
+convertPathPattern ${OBOETEST_DIR} test_aaudio.cpp
+
+mv ${LIBOBOE_DIR}/include/oboe ${LIBOBOE_DIR}/include/aaudio
+mv ${LIBOBOE_DIR}/include/aaudio/OboeAudio.h ${LIBOBOE_DIR}/include/aaudio/AAudio.h
+mv ${OBOESERVICE_DIR}/OboeService.h ${OBOESERVICE_DIR}/AAudioServiceDefinitions.h
+mv ${LIBOBOE_DIR}/tests/test_oboe_api.cpp ${LIBOBOE_DIR}/tests/test_aaudio_api.cpp
+
+# Rename files with Oboe in the name.
+find -name "*OboeAudioService*.cpp"      | rename -v "s/OboeAudioService/AAudioService/g"
+find -name "*OboeAudioService*.h"      | rename -v "s/OboeAudioService/AAudioService/g"
+find -name "*Oboe*.cpp"      | rename -v "s/Oboe/AAudio/g"
+find -name "*Oboe*.h"        | rename -v "s/Oboe/AAudio/g"
diff --git a/media/libaaudio/scripts/convert_typedefs_int32.sh b/media/libaaudio/scripts/convert_typedefs_int32.sh
new file mode 100755
index 0000000..7bdbe3a
--- /dev/null
+++ b/media/libaaudio/scripts/convert_typedefs_int32.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+echo "Use SED to convert typedefs in AAudio API"
+
+echo "Top is ${ANDROID_BUILD_TOP}"
+LIBAAUDIO_DIR=${ANDROID_BUILD_TOP}/frameworks/av/media/libaaudio
+echo "LIBAAUDIO_DIR is ${LIBAAUDIO_DIR}"
+OBOESERVICE_DIR=${ANDROID_BUILD_TOP}/frameworks/av/services/oboeservice
+echo "OBOESERVICE_DIR is ${OBOESERVICE_DIR}"
+OBOETEST_DIR=${ANDROID_BUILD_TOP}/cts/tests/tests/nativemedia/aaudio/src/
+echo "OBOETEST_DIR is ${OBOETEST_DIR}"
+
+function convertPathPattern {
+    path=$1
+    pattern=$2
+    find $path -type f  -name $pattern -exec sed -i -f ${LIBAAUDIO_DIR}/scripts/typedefs_to_int32.sed {} \;
+}
+
+function convertPath {
+    path=$1
+    convertPathPattern $1 '*.cpp'
+    convertPathPattern $1 '*.h'
+}
+
+convertPath ${LIBAAUDIO_DIR}
+convertPath ${OBOESERVICE_DIR}
+convertPathPattern ${OBOETEST_DIR} test_aaudio.cpp
+
diff --git a/media/libaaudio/scripts/oboe_to_aaudio.sed b/media/libaaudio/scripts/oboe_to_aaudio.sed
new file mode 100644
index 0000000..7da85a0
--- /dev/null
+++ b/media/libaaudio/scripts/oboe_to_aaudio.sed
@@ -0,0 +1,16 @@
+s/liboboe/libclarinet/g
+s/oboeservice/clarinetservice/g
+
+s/OboeAudio\.h/AAudio\.h/g
+s/OboeService\.h/AAudioServiceDefinitions\.h/g
+s/OboeAudioService/AAudioService/g
+s/LOG_TAG "OboeAudio"/LOG_TAG "AAudio"/g
+s/OBOE_AUDIO_FORMAT/AAUDIO_FORMAT/g
+s/OBOEAUDIO/AAUDIO/g
+
+s/oboe/aaudio/g
+s/Oboe/AAudio/g
+s/OBOE/AAUDIO/g
+
+s/libclarinet/liboboe/g
+s/clarinetservice/oboeservice/g
diff --git a/media/libaaudio/scripts/revert_all_aaudio.sh b/media/libaaudio/scripts/revert_all_aaudio.sh
new file mode 100755
index 0000000..19c7f81
--- /dev/null
+++ b/media/libaaudio/scripts/revert_all_aaudio.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+echo "Revert typedefs"
+
+echo "Top is ${ANDROID_BUILD_TOP}"
+LIBAAUDIO_DIR=${ANDROID_BUILD_TOP}/frameworks/av/media/libaaudio
+echo "LIBAAUDIO_DIR is ${LIBAAUDIO_DIR}"
+OBOESERVICE_DIR=${ANDROID_BUILD_TOP}/frameworks/av/services/oboeservice
+echo "OBOESERVICE_DIR is ${OBOESERVICE_DIR}"
+OBOETEST_DIR=${ANDROID_BUILD_TOP}/cts/tests/tests/nativemedia/aaudio/src/
+echo "OBOETEST_DIR is ${OBOETEST_DIR}"
+
+git checkout -- ${LIBAAUDIO_DIR}/examples
+git checkout -- ${LIBAAUDIO_DIR}/include
+git checkout -- ${LIBAAUDIO_DIR}/src
+git checkout -- ${LIBAAUDIO_DIR}/tests
+git checkout -- ${OBOESERVICE_DIR}
+
diff --git a/media/libaaudio/scripts/typedefs_to_int32.sed b/media/libaaudio/scripts/typedefs_to_int32.sed
new file mode 100644
index 0000000..392c9a0
--- /dev/null
+++ b/media/libaaudio/scripts/typedefs_to_int32.sed
@@ -0,0 +1,8 @@
+s/aaudio_device_id_t/int32_t/g
+s/aaudio_sample_rate_t/int32_t/g
+s/aaudio_size_frames_t/int32_t/g
+s/aaudio_size_bytes_t/int32_t/g
+s/aaudio_sample_rate_t/int32_t/g
+
+s/aaudio_position_frames_t/int64_t/g
+s/aaudio_nanoseconds_t/int64_t/g
diff --git a/media/libaaudio/src/Android.mk b/media/libaaudio/src/Android.mk
new file mode 100644
index 0000000..28c4d7f
--- /dev/null
+++ b/media/libaaudio/src/Android.mk
@@ -0,0 +1,126 @@
+LOCAL_PATH:= $(call my-dir)
+
+# ======================= STATIC LIBRARY ==========================
+# This is being built because it make AAudio testing very easy with a complete executable.
+# TODO Remove this target later, when not needed.
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libaaudio
+LOCAL_MODULE_TAGS := optional
+
+LIBAAUDIO_DIR := $(TOP)/frameworks/av/media/libaaudio
+LIBAAUDIO_SRC_DIR := $(LIBAAUDIO_DIR)/src
+
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/native/include \
+    system/core/base/include \
+    frameworks/native/media/libaaudio/include/include \
+    frameworks/av/media/libaaudio/include \
+    frameworks/native/include \
+    frameworks/av/media/libaudioclient/include \
+    $(LOCAL_PATH) \
+    $(LOCAL_PATH)/binding \
+    $(LOCAL_PATH)/client \
+    $(LOCAL_PATH)/core \
+    $(LOCAL_PATH)/fifo \
+    $(LOCAL_PATH)/legacy \
+    $(LOCAL_PATH)/utility
+
+# If you add a file here then also add it below in the SHARED target
+LOCAL_SRC_FILES = \
+    core/AudioStream.cpp \
+    core/AudioStreamBuilder.cpp \
+    core/AAudioAudio.cpp \
+    legacy/AudioStreamLegacy.cpp \
+    legacy/AudioStreamRecord.cpp \
+    legacy/AudioStreamTrack.cpp \
+    utility/HandleTracker.cpp \
+    utility/AAudioUtilities.cpp \
+    utility/FixedBlockAdapter.cpp \
+    utility/FixedBlockReader.cpp \
+    utility/FixedBlockWriter.cpp \
+    utility/LinearRamp.cpp \
+    fifo/FifoBuffer.cpp \
+    fifo/FifoControllerBase.cpp \
+    client/AudioEndpoint.cpp \
+    client/AudioStreamInternal.cpp \
+    client/AudioStreamInternalCapture.cpp \
+    client/AudioStreamInternalPlay.cpp \
+    client/IsochronousClockModel.cpp \
+    binding/AudioEndpointParcelable.cpp \
+    binding/AAudioBinderClient.cpp \
+    binding/AAudioStreamRequest.cpp \
+    binding/AAudioStreamConfiguration.cpp \
+    binding/IAAudioService.cpp \
+    binding/RingBufferParcelable.cpp \
+    binding/SharedMemoryParcelable.cpp \
+    binding/SharedRegionParcelable.cpp
+
+LOCAL_CFLAGS += -Wno-unused-parameter -Wall -Werror
+
+# By default, all symbols are hidden.
+# LOCAL_CFLAGS += -fvisibility=hidden
+# AAUDIO_API is used to explicitly export a function or a variable as a visible symbol.
+LOCAL_CFLAGS += -DAAUDIO_API='__attribute__((visibility("default")))'
+
+include $(BUILD_STATIC_LIBRARY)
+
+# ======================= SHARED LIBRARY ==========================
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libaaudio
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/native/include \
+    system/core/base/include \
+    frameworks/native/media/libaaudio/include/include \
+    frameworks/av/media/libaaudio/include \
+    $(LOCAL_PATH) \
+    $(LOCAL_PATH)/binding \
+    $(LOCAL_PATH)/client \
+    $(LOCAL_PATH)/core \
+    $(LOCAL_PATH)/fifo \
+    $(LOCAL_PATH)/legacy \
+    $(LOCAL_PATH)/utility
+
+LOCAL_SRC_FILES = core/AudioStream.cpp \
+    core/AudioStreamBuilder.cpp \
+    core/AAudioAudio.cpp \
+    legacy/AudioStreamLegacy.cpp \
+    legacy/AudioStreamRecord.cpp \
+    legacy/AudioStreamTrack.cpp \
+    utility/HandleTracker.cpp \
+    utility/AAudioUtilities.cpp \
+    utility/FixedBlockAdapter.cpp \
+    utility/FixedBlockReader.cpp \
+    utility/FixedBlockWriter.cpp \
+    utility/LinearRamp.cpp \
+    fifo/FifoBuffer.cpp \
+    fifo/FifoControllerBase.cpp \
+    client/AudioEndpoint.cpp \
+    client/AudioStreamInternal.cpp \
+    client/AudioStreamInternalCapture.cpp \
+    client/AudioStreamInternalPlay.cpp \
+    client/IsochronousClockModel.cpp \
+    binding/AudioEndpointParcelable.cpp \
+    binding/AAudioBinderClient.cpp \
+    binding/AAudioStreamRequest.cpp \
+    binding/AAudioStreamConfiguration.cpp \
+    binding/IAAudioService.cpp \
+    binding/RingBufferParcelable.cpp \
+    binding/SharedMemoryParcelable.cpp \
+    binding/SharedRegionParcelable.cpp
+
+LOCAL_CFLAGS += -Wno-unused-parameter -Wall -Werror
+
+# By default, all symbols are hidden.
+# LOCAL_CFLAGS += -fvisibility=hidden
+# AAUDIO_API is used to explicitly export a function or a variable as a visible symbol.
+LOCAL_CFLAGS += -DAAUDIO_API='__attribute__((visibility("default")))'
+
+LOCAL_SHARED_LIBRARIES := libaudioclient liblog libcutils libutils libbinder libaudiomanager
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libaaudio/src/binding/AAudioBinderClient.cpp b/media/libaaudio/src/binding/AAudioBinderClient.cpp
new file mode 100644
index 0000000..435b30f
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioBinderClient.cpp
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <binder/IServiceManager.h>
+#include <utils/Mutex.h>
+#include <utils/RefBase.h>
+#include <utils/Singleton.h>
+
+#include <aaudio/AAudio.h>
+
+#include "AudioEndpointParcelable.h"
+#include "binding/AAudioStreamRequest.h"
+#include "binding/AAudioStreamConfiguration.h"
+#include "binding/IAAudioService.h"
+#include "binding/AAudioServiceMessage.h"
+
+#include "AAudioBinderClient.h"
+#include "AAudioServiceInterface.h"
+
+using android::String16;
+using android::IServiceManager;
+using android::defaultServiceManager;
+using android::interface_cast;
+using android::IAAudioService;
+using android::Mutex;
+using android::sp;
+
+using namespace aaudio;
+
+static android::Mutex gServiceLock;
+static sp<IAAudioService>  gAAudioService;
+
+ANDROID_SINGLETON_STATIC_INSTANCE(AAudioBinderClient);
+
+// TODO Share code with other service clients.
+// Helper function to get access to the "AAudioService" service.
+// This code was modeled after frameworks/av/media/libaudioclient/AudioSystem.cpp
+static const sp<IAAudioService> getAAudioService() {
+    sp<IBinder> binder;
+    Mutex::Autolock _l(gServiceLock);
+    if (gAAudioService == 0) {
+        sp<IServiceManager> sm = defaultServiceManager();
+        // Try several times to get the service.
+        int retries = 4;
+        do {
+            binder = sm->getService(String16(AAUDIO_SERVICE_NAME)); // This will wait a while.
+            if (binder != 0) {
+                break;
+            }
+        } while (retries-- > 0);
+
+        if (binder != 0) {
+            // TODO Add linkToDeath() like in frameworks/av/media/libaudioclient/AudioSystem.cpp
+            // TODO Create a DeathRecipient that disconnects all active streams.
+            gAAudioService = interface_cast<IAAudioService>(binder);
+        } else {
+            ALOGE("AudioStreamInternal could not get %s", AAUDIO_SERVICE_NAME);
+        }
+    }
+    return gAAudioService;
+}
+
+static void dropAAudioService() {
+    Mutex::Autolock _l(gServiceLock);
+    gAAudioService.clear(); // force a reconnect
+}
+
+AAudioBinderClient::AAudioBinderClient()
+        : AAudioServiceInterface()
+        , Singleton<AAudioBinderClient>() {}
+
+AAudioBinderClient::~AAudioBinderClient() {}
+
+/**
+* @param request info needed to create the stream
+* @param configuration contains information about the created stream
+* @return handle to the stream or a negative error
+*/
+aaudio_handle_t AAudioBinderClient::openStream(const AAudioStreamRequest &request,
+                                               AAudioStreamConfiguration &configurationOutput) {
+    aaudio_handle_t stream;
+    for (int i = 0; i < 2; i++) {
+        const sp<IAAudioService> &service = getAAudioService();
+        if (service == 0) {
+            return AAUDIO_ERROR_NO_SERVICE;
+        }
+
+        stream = service->openStream(request, configurationOutput);
+
+        if (stream == AAUDIO_ERROR_NO_SERVICE) {
+            ALOGE("AAudioBinderClient: lost connection to AAudioService.");
+            dropAAudioService(); // force a reconnect
+        } else {
+            break;
+        }
+    }
+    return stream;
+}
+
+aaudio_result_t AAudioBinderClient::closeStream(aaudio_handle_t streamHandle) {
+    const sp<IAAudioService> &service = getAAudioService();
+    if (service == 0) return AAUDIO_ERROR_NO_SERVICE;
+    return service->closeStream(streamHandle);
+}
+
+/* Get an immutable description of the in-memory queues
+* used to communicate with the underlying HAL or Service.
+*/
+aaudio_result_t AAudioBinderClient::getStreamDescription(aaudio_handle_t streamHandle,
+                                                         AudioEndpointParcelable &parcelable) {
+    const sp<IAAudioService> &service = getAAudioService();
+    if (service == 0) return AAUDIO_ERROR_NO_SERVICE;
+    return service->getStreamDescription(streamHandle, parcelable);
+}
+
+aaudio_result_t AAudioBinderClient::startStream(aaudio_handle_t streamHandle) {
+    const sp<IAAudioService> &service = getAAudioService();
+    if (service == 0) return AAUDIO_ERROR_NO_SERVICE;
+    return service->startStream(streamHandle);
+}
+
+aaudio_result_t AAudioBinderClient::pauseStream(aaudio_handle_t streamHandle) {
+    const sp<IAAudioService> &service = getAAudioService();
+    if (service == 0) return AAUDIO_ERROR_NO_SERVICE;
+    return service->pauseStream(streamHandle);
+}
+
+aaudio_result_t AAudioBinderClient::stopStream(aaudio_handle_t streamHandle) {
+    const sp<IAAudioService> &service = getAAudioService();
+    if (service == 0) return AAUDIO_ERROR_NO_SERVICE;
+    return service->stopStream(streamHandle);
+}
+
+aaudio_result_t AAudioBinderClient::flushStream(aaudio_handle_t streamHandle) {
+    const sp<IAAudioService> &service = getAAudioService();
+    if (service == 0) return AAUDIO_ERROR_NO_SERVICE;
+    return service->flushStream(streamHandle);
+}
+
+/**
+* Manage the specified thread as a low latency audio thread.
+*/
+aaudio_result_t AAudioBinderClient::registerAudioThread(aaudio_handle_t streamHandle,
+                                                        pid_t clientProcessId,
+                                                        pid_t clientThreadId,
+                                                        int64_t periodNanoseconds) {
+    const sp<IAAudioService> &service = getAAudioService();
+    if (service == 0) return AAUDIO_ERROR_NO_SERVICE;
+    return service->registerAudioThread(streamHandle,
+                                        clientProcessId,
+                                        clientThreadId,
+                                        periodNanoseconds);
+}
+
+aaudio_result_t AAudioBinderClient::unregisterAudioThread(aaudio_handle_t streamHandle,
+                                                          pid_t clientProcessId,
+                                                          pid_t clientThreadId) {
+    const sp<IAAudioService> &service = getAAudioService();
+    if (service == 0) return AAUDIO_ERROR_NO_SERVICE;
+    return service->unregisterAudioThread(streamHandle,
+                                          clientProcessId,
+                                          clientThreadId);
+}
diff --git a/media/libaaudio/src/binding/AAudioBinderClient.h b/media/libaaudio/src/binding/AAudioBinderClient.h
new file mode 100644
index 0000000..e223376
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioBinderClient.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AAUDIO_AAUDIO_BINDER_CLIENT_H
+#define ANDROID_AAUDIO_AAUDIO_BINDER_CLIENT_H
+
+#include <utils/Singleton.h>
+
+#include <aaudio/AAudio.h>
+#include "AAudioServiceDefinitions.h"
+#include "AAudioServiceInterface.h"
+#include "binding/AAudioStreamRequest.h"
+#include "binding/AAudioStreamConfiguration.h"
+#include "binding/AudioEndpointParcelable.h"
+
+/**
+ * Implements the AAudioServiceInterface by talking to the actual service through Binder.
+ */
+
+namespace aaudio {
+
+class AAudioBinderClient : public AAudioServiceInterface
+        , public android::Singleton<AAudioBinderClient> {
+
+public:
+
+    AAudioBinderClient();
+
+    virtual ~AAudioBinderClient();
+
+    /**
+     * @param request info needed to create the stream
+     * @param configuration contains resulting information about the created stream
+     * @return handle to the stream or a negative error
+     */
+    aaudio_handle_t openStream(const AAudioStreamRequest &request,
+                               AAudioStreamConfiguration &configurationOutput) override;
+
+    aaudio_result_t closeStream(aaudio_handle_t streamHandle) override;
+
+    /* Get an immutable description of the in-memory queues
+    * used to communicate with the underlying HAL or Service.
+    */
+    aaudio_result_t getStreamDescription(aaudio_handle_t streamHandle,
+                                                 AudioEndpointParcelable &parcelable) override;
+
+    /**
+     * Start the flow of data.
+     * This is asynchronous. When complete, the service will send a STARTED event.
+     */
+    aaudio_result_t startStream(aaudio_handle_t streamHandle) override;
+
+    /**
+     * Stop the flow of data such that start() can resume without loss of data.
+     * This is asynchronous. When complete, the service will send a PAUSED event.
+     */
+    aaudio_result_t pauseStream(aaudio_handle_t streamHandle) override;
+
+    aaudio_result_t stopStream(aaudio_handle_t streamHandle) override;
+
+    /**
+     *  Discard any data held by the underlying HAL or Service.
+     * This is asynchronous. When complete, the service will send a FLUSHED event.
+     */
+    aaudio_result_t flushStream(aaudio_handle_t streamHandle) override;
+
+    /**
+     * Manage the specified thread as a low latency audio thread.
+     * TODO Consider passing this information as part of the startStream() call.
+     */
+    aaudio_result_t registerAudioThread(aaudio_handle_t streamHandle,
+                                                pid_t clientProcessId,
+                                                pid_t clientThreadId,
+                                                int64_t periodNanoseconds) override;
+
+    aaudio_result_t unregisterAudioThread(aaudio_handle_t streamHandle,
+                                                  pid_t clientProcessId,
+                                                  pid_t clientThreadId) override;
+};
+
+
+} /* namespace aaudio */
+
+#endif //ANDROID_AAUDIO_AAUDIO_BINDER_CLIENT_H
diff --git a/media/libaaudio/src/binding/AAudioServiceDefinitions.h b/media/libaaudio/src/binding/AAudioServiceDefinitions.h
new file mode 100644
index 0000000..638544e
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioServiceDefinitions.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BINDING_AAUDIOSERVICEDEFINITIONS_H
+#define BINDING_AAUDIOSERVICEDEFINITIONS_H
+
+#include <stdint.h>
+#include <utils/RefBase.h>
+#include <binder/TextOutput.h>
+#include <binder/IInterface.h>
+
+#include <aaudio/AAudio.h>
+
+using android::NO_ERROR;
+using android::IBinder;
+
+namespace android {
+
+enum aaudio_commands_t {
+    OPEN_STREAM = IBinder::FIRST_CALL_TRANSACTION,
+    CLOSE_STREAM,
+    GET_STREAM_DESCRIPTION,
+    START_STREAM,
+    PAUSE_STREAM,
+    STOP_STREAM,
+    FLUSH_STREAM,
+    REGISTER_AUDIO_THREAD,
+    UNREGISTER_AUDIO_THREAD
+};
+
+} // namespace android
+
+namespace aaudio {
+
+typedef int32_t  aaudio_handle_t;
+
+#define AAUDIO_HANDLE_INVALID  ((aaudio_handle_t) -1)
+
+// This must be a fixed width so it can be in shared memory.
+enum RingbufferFlags : uint32_t {
+    NONE = 0,
+    RATE_ISOCHRONOUS = 0x0001,
+    RATE_ASYNCHRONOUS = 0x0002,
+    COHERENCY_DMA = 0x0004,
+    COHERENCY_ACQUIRE_RELEASE = 0x0008,
+    COHERENCY_AUTO = 0x0010,
+};
+
+// This is not passed through Binder.
+// Client side code will convert Binder data and fill this descriptor.
+typedef struct RingBufferDescriptor_s {
+    uint8_t* dataAddress;       // offset from read or write block
+    int64_t* writeCounterAddress;
+    int64_t* readCounterAddress;
+    int32_t  bytesPerFrame;     // index is in frames
+    int32_t  framesPerBurst;    // for ISOCHRONOUS queues
+    int32_t  capacityInFrames;  // zero if unused
+    RingbufferFlags flags;
+} RingBufferDescriptor;
+
+// This is not passed through Binder.
+// Client side code will convert Binder data and fill this descriptor.
+typedef struct EndpointDescriptor_s {
+    // Set capacityInFrames to zero if Queue is unused.
+    RingBufferDescriptor upMessageQueueDescriptor;   // server to client
+    RingBufferDescriptor downMessageQueueDescriptor; // client to server
+    RingBufferDescriptor dataQueueDescriptor;    // playback or capture
+} EndpointDescriptor;
+
+} // namespace aaudio
+
+#endif //BINDING_AAUDIOSERVICEDEFINITIONS_H
diff --git a/media/libaaudio/src/binding/AAudioServiceInterface.h b/media/libaaudio/src/binding/AAudioServiceInterface.h
new file mode 100644
index 0000000..824e5bc
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioServiceInterface.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AAUDIO_BINDING_AAUDIO_SERVICE_INTERFACE_H
+#define ANDROID_AAUDIO_BINDING_AAUDIO_SERVICE_INTERFACE_H
+
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/AAudioStreamRequest.h"
+#include "binding/AAudioStreamConfiguration.h"
+#include "binding/AudioEndpointParcelable.h"
+
+/**
+ * This has the same methods as IAAudioService but without the Binder features.
+ *
+ * It allows us to abstract the Binder interface and use an AudioStreamInternal
+ * both in the client and in the service.
+ */
+namespace aaudio {
+
+class AAudioServiceInterface {
+public:
+
+    AAudioServiceInterface() {};
+    virtual ~AAudioServiceInterface() = default;
+
+    /**
+     * @param request info needed to create the stream
+     * @param configuration contains information about the created stream
+     * @return handle to the stream or a negative error
+     */
+    virtual aaudio_handle_t openStream(const AAudioStreamRequest &request,
+                                       AAudioStreamConfiguration &configuration) = 0;
+
+    virtual aaudio_result_t closeStream(aaudio_handle_t streamHandle) = 0;
+
+    /* Get an immutable description of the in-memory queues
+    * used to communicate with the underlying HAL or Service.
+    */
+    virtual aaudio_result_t getStreamDescription(aaudio_handle_t streamHandle,
+                                                 AudioEndpointParcelable &parcelable) = 0;
+
+    /**
+     * Start the flow of data.
+     */
+    virtual aaudio_result_t startStream(aaudio_handle_t streamHandle) = 0;
+
+    /**
+     * Stop the flow of data such that start() can resume without loss of data.
+     */
+    virtual aaudio_result_t pauseStream(aaudio_handle_t streamHandle) = 0;
+
+    /**
+     * Stop the flow of data after data currently inthe buffer has played.
+     */
+    virtual aaudio_result_t stopStream(aaudio_handle_t streamHandle) = 0;
+
+    /**
+     *  Discard any data held by the underlying HAL or Service.
+     */
+    virtual aaudio_result_t flushStream(aaudio_handle_t streamHandle) = 0;
+
+    /**
+     * Manage the specified thread as a low latency audio thread.
+     */
+    virtual aaudio_result_t registerAudioThread(aaudio_handle_t streamHandle,
+                                                pid_t clientProcessId,
+                                                pid_t clientThreadId,
+                                                int64_t periodNanoseconds) = 0;
+
+    virtual aaudio_result_t unregisterAudioThread(aaudio_handle_t streamHandle,
+                                                  pid_t clientProcessId,
+                                                  pid_t clientThreadId) = 0;
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_AAUDIO_BINDING_AAUDIO_SERVICE_INTERFACE_H
diff --git a/media/libaaudio/src/binding/AAudioServiceMessage.h b/media/libaaudio/src/binding/AAudioServiceMessage.h
new file mode 100644
index 0000000..b4377fb
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioServiceMessage.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AAUDIO_AAUDIO_SERVICE_MESSAGE_H
+#define ANDROID_AAUDIO_AAUDIO_SERVICE_MESSAGE_H
+
+#include <stdint.h>
+
+#include <aaudio/AAudio.h>
+
+namespace aaudio {
+
+// TODO move this to an "include" folder for the service.
+
+// Used to send information about the HAL to the client.
+struct AAudioMessageTimestamp {
+    int64_t position;     // number of frames transferred so far
+    int64_t deviceOffset; // add to client position to get device position
+    int64_t timestamp;    // time when that position was reached
+};
+
+typedef enum aaudio_service_event_e : uint32_t {
+    AAUDIO_SERVICE_EVENT_STARTED,
+    AAUDIO_SERVICE_EVENT_PAUSED,
+    AAUDIO_SERVICE_EVENT_STOPPED,
+    AAUDIO_SERVICE_EVENT_FLUSHED,
+    AAUDIO_SERVICE_EVENT_CLOSED,
+    AAUDIO_SERVICE_EVENT_DISCONNECTED,
+    AAUDIO_SERVICE_EVENT_VOLUME
+} aaudio_service_event_t;
+
+struct AAudioMessageEvent {
+    aaudio_service_event_t event;
+    double                 dataDouble;
+    int64_t                dataLong;
+};
+
+typedef struct AAudioServiceMessage_s {
+    enum class code : uint32_t {
+        NOTHING,
+        TIMESTAMP,
+        EVENT,
+    };
+
+    code what;
+    union {
+        AAudioMessageTimestamp timestamp; // what == TIMESTAMP
+        AAudioMessageEvent event;         // what == EVENT
+    };
+} AAudioServiceMessage;
+
+} /* namespace aaudio */
+
+#endif //ANDROID_AAUDIO_AAUDIO_SERVICE_MESSAGE_H
diff --git a/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp b/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
new file mode 100644
index 0000000..44edb1d
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
@@ -0,0 +1,111 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <aaudio/AAudio.h>
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+#include "binding/AAudioStreamConfiguration.h"
+
+using android::NO_ERROR;
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+using namespace aaudio;
+
+AAudioStreamConfiguration::AAudioStreamConfiguration() {}
+AAudioStreamConfiguration::~AAudioStreamConfiguration() {}
+
+status_t AAudioStreamConfiguration::writeToParcel(Parcel* parcel) const {
+    status_t status;
+    status = parcel->writeInt32(mDeviceId);
+    if (status != NO_ERROR) goto error;
+    status = parcel->writeInt32(mSampleRate);
+    if (status != NO_ERROR) goto error;
+    status = parcel->writeInt32(mSamplesPerFrame);
+    if (status != NO_ERROR) goto error;
+    status = parcel->writeInt32((int32_t) mSharingMode);
+    if (status != NO_ERROR) goto error;
+    status = parcel->writeInt32((int32_t) mAudioFormat);
+    if (status != NO_ERROR) goto error;
+    status = parcel->writeInt32(mBufferCapacity);
+    if (status != NO_ERROR) goto error;
+    return NO_ERROR;
+error:
+    ALOGE("AAudioStreamConfiguration.writeToParcel(): write failed = %d", status);
+    return status;
+}
+
+status_t AAudioStreamConfiguration::readFromParcel(const Parcel* parcel) {
+    status_t status = parcel->readInt32(&mDeviceId);
+    if (status != NO_ERROR) goto error;
+    status = parcel->readInt32(&mSampleRate);
+    if (status != NO_ERROR) goto error;
+    status = parcel->readInt32(&mSamplesPerFrame);
+    if (status != NO_ERROR) goto error;
+    status = parcel->readInt32(&mSharingMode);
+    if (status != NO_ERROR) goto error;
+    status = parcel->readInt32(&mAudioFormat);
+    if (status != NO_ERROR) goto error;
+    status = parcel->readInt32(&mBufferCapacity);
+    if (status != NO_ERROR) goto error;
+    return NO_ERROR;
+error:
+    ALOGE("AAudioStreamConfiguration.readFromParcel(): read failed = %d", status);
+    return status;
+}
+
+aaudio_result_t AAudioStreamConfiguration::validate() const {
+    // Validate results of the open.
+    if (mSampleRate < 0 || mSampleRate >= 8 * 48000) { // TODO review limits
+        ALOGE("AAudioStreamConfiguration.validate(): invalid sampleRate = %d", mSampleRate);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+
+    if (mSamplesPerFrame < 1 || mSamplesPerFrame >= 32) { // TODO review limits
+        ALOGE("AAudioStreamConfiguration.validate() invalid samplesPerFrame = %d", mSamplesPerFrame);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+
+    switch (mAudioFormat) {
+    case AAUDIO_FORMAT_PCM_I16:
+    case AAUDIO_FORMAT_PCM_FLOAT:
+        break;
+    default:
+        ALOGE("AAudioStreamConfiguration.validate() invalid audioFormat = %d", mAudioFormat);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+
+    if (mBufferCapacity < 0) {
+        ALOGE("AAudioStreamConfiguration.validate() invalid mBufferCapacity = %d", mBufferCapacity);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    return AAUDIO_OK;
+}
+
+void AAudioStreamConfiguration::dump() const {
+    ALOGD("AAudioStreamConfiguration mDeviceId        = %d", mDeviceId);
+    ALOGD("AAudioStreamConfiguration mSampleRate      = %d", mSampleRate);
+    ALOGD("AAudioStreamConfiguration mSamplesPerFrame = %d", mSamplesPerFrame);
+    ALOGD("AAudioStreamConfiguration mSharingMode     = %d", (int)mSharingMode);
+    ALOGD("AAudioStreamConfiguration mAudioFormat     = %d", (int)mAudioFormat);
+    ALOGD("AAudioStreamConfiguration mBufferCapacity  = %d", mBufferCapacity);
+}
diff --git a/media/libaaudio/src/binding/AAudioStreamConfiguration.h b/media/libaaudio/src/binding/AAudioStreamConfiguration.h
new file mode 100644
index 0000000..144595a
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioStreamConfiguration.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_BINDING_AAUDIO_STREAM_CONFIGURATION_H
+#define ANDROID_BINDING_AAUDIO_STREAM_CONFIGURATION_H
+
+#include <stdint.h>
+
+#include <aaudio/AAudio.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+namespace aaudio {
+
+class AAudioStreamConfiguration : public Parcelable {
+public:
+    AAudioStreamConfiguration();
+    virtual ~AAudioStreamConfiguration();
+
+    int32_t getDeviceId() const {
+        return mDeviceId;
+    }
+
+    void setDeviceId(int32_t deviceId) {
+        mDeviceId = deviceId;
+    }
+
+    int32_t getSampleRate() const {
+        return mSampleRate;
+    }
+
+    void setSampleRate(int32_t sampleRate) {
+        mSampleRate = sampleRate;
+    }
+
+    int32_t getSamplesPerFrame() const {
+        return mSamplesPerFrame;
+    }
+
+    void setSamplesPerFrame(int32_t samplesPerFrame) {
+        mSamplesPerFrame = samplesPerFrame;
+    }
+
+    aaudio_format_t getAudioFormat() const {
+        return mAudioFormat;
+    }
+
+    void setAudioFormat(aaudio_format_t audioFormat) {
+        mAudioFormat = audioFormat;
+    }
+
+    aaudio_sharing_mode_t getSharingMode() const {
+        return mSharingMode;
+    }
+
+    void setSharingMode(aaudio_sharing_mode_t sharingMode) {
+        mSharingMode = sharingMode;
+    }
+
+    int32_t getBufferCapacity() const {
+        return mBufferCapacity;
+    }
+
+    void setBufferCapacity(int32_t frames) {
+        mBufferCapacity = frames;
+    }
+
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    aaudio_result_t validate() const;
+
+    void dump() const;
+
+private:
+    int32_t               mDeviceId        = AAUDIO_UNSPECIFIED;
+    int32_t               mSampleRate      = AAUDIO_UNSPECIFIED;
+    int32_t               mSamplesPerFrame = AAUDIO_UNSPECIFIED;
+    aaudio_sharing_mode_t mSharingMode     = AAUDIO_SHARING_MODE_SHARED;
+    aaudio_format_t       mAudioFormat     = AAUDIO_FORMAT_UNSPECIFIED;
+    int32_t               mBufferCapacity  = AAUDIO_UNSPECIFIED;
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_BINDING_AAUDIO_STREAM_CONFIGURATION_H
diff --git a/media/libaaudio/src/binding/AAudioStreamRequest.cpp b/media/libaaudio/src/binding/AAudioStreamRequest.cpp
new file mode 100644
index 0000000..a5c27b9
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioStreamRequest.cpp
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+#include <aaudio/AAudio.h>
+
+#include "binding/AAudioStreamConfiguration.h"
+#include "binding/AAudioStreamRequest.h"
+
+using android::NO_ERROR;
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+using namespace aaudio;
+
+AAudioStreamRequest::AAudioStreamRequest()
+    : mConfiguration()
+    {}
+
+AAudioStreamRequest::~AAudioStreamRequest() {}
+
+status_t AAudioStreamRequest::writeToParcel(Parcel* parcel) const {
+    status_t status = parcel->writeInt32((int32_t) mUserId);
+    if (status != NO_ERROR) goto error;
+    status = parcel->writeInt32((int32_t) mProcessId);
+    if (status != NO_ERROR) goto error;
+    status = parcel->writeInt32((int32_t) mDirection);
+    if (status != NO_ERROR) goto error;
+
+    status = parcel->writeBool(mSharingModeMatchRequired);
+    if (status != NO_ERROR) goto error;
+
+    status = mConfiguration.writeToParcel(parcel);
+    if (status != NO_ERROR) goto error;
+    return NO_ERROR;
+
+error:
+    ALOGE("AAudioStreamRequest.writeToParcel(): write failed = %d", status);
+    return status;
+}
+
+status_t AAudioStreamRequest::readFromParcel(const Parcel* parcel) {
+    int32_t temp;
+    status_t status = parcel->readInt32(&temp);
+    if (status != NO_ERROR) goto error;
+    mUserId = (uid_t) temp;
+
+    status = parcel->readInt32(&temp);
+    if (status != NO_ERROR) goto error;
+    mProcessId = (pid_t) temp;
+
+    status = parcel->readInt32(&temp);
+    if (status != NO_ERROR) goto error;
+    mDirection = (aaudio_direction_t) temp;
+
+    status = parcel->readBool(&mSharingModeMatchRequired);
+    if (status != NO_ERROR) goto error;
+
+    status = mConfiguration.readFromParcel(parcel);
+    if (status != NO_ERROR) goto error;
+    return NO_ERROR;
+
+error:
+    ALOGE("AAudioStreamRequest.readFromParcel(): read failed = %d", status);
+    return status;
+}
+
+aaudio_result_t AAudioStreamRequest::validate() const {
+    return mConfiguration.validate();
+}
+
+void AAudioStreamRequest::dump() const {
+    ALOGD("AAudioStreamRequest mUserId    = %d", mUserId);
+    ALOGD("AAudioStreamRequest mProcessId = %d", mProcessId);
+    ALOGD("AAudioStreamRequest mDirection = %d", mDirection);
+    mConfiguration.dump();
+}
diff --git a/media/libaaudio/src/binding/AAudioStreamRequest.h b/media/libaaudio/src/binding/AAudioStreamRequest.h
new file mode 100644
index 0000000..77138da
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioStreamRequest.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_BINDING_AAUDIO_STREAM_REQUEST_H
+#define ANDROID_BINDING_AAUDIO_STREAM_REQUEST_H
+
+#include <stdint.h>
+
+#include <aaudio/AAudio.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+#include "binding/AAudioStreamConfiguration.h"
+
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+namespace aaudio {
+
+class AAudioStreamRequest : public Parcelable {
+public:
+    AAudioStreamRequest();
+    virtual ~AAudioStreamRequest();
+
+    uid_t getUserId() const {
+        return mUserId;
+    }
+
+    void setUserId(uid_t userId) {
+        mUserId = userId;
+    }
+
+    pid_t getProcessId() const {
+        return mProcessId;
+    }
+
+    void setProcessId(pid_t processId) {
+        mProcessId = processId;
+    }
+
+    aaudio_direction_t getDirection() const {
+        return mDirection;
+    }
+
+    void setDirection(aaudio_direction_t direction) {
+        mDirection = direction;
+    }
+
+    bool isSharingModeMatchRequired() const {
+        return mSharingModeMatchRequired;
+    }
+
+    void setSharingModeMatchRequired(bool required) {
+        mSharingModeMatchRequired = required;
+    }
+
+
+    const AAudioStreamConfiguration &getConstantConfiguration() const {
+        return mConfiguration;
+    }
+
+    AAudioStreamConfiguration &getConfiguration() {
+        return mConfiguration;
+    }
+
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    aaudio_result_t validate() const;
+
+    void dump() const;
+
+protected:
+    AAudioStreamConfiguration  mConfiguration;
+    uid_t                      mUserId;
+    pid_t                      mProcessId;
+    aaudio_direction_t         mDirection;
+    bool                       mSharingModeMatchRequired = false;
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_BINDING_AAUDIO_STREAM_REQUEST_H
diff --git a/media/libaaudio/src/binding/AudioEndpointParcelable.cpp b/media/libaaudio/src/binding/AudioEndpointParcelable.cpp
new file mode 100644
index 0000000..d05abb0
--- /dev/null
+++ b/media/libaaudio/src/binding/AudioEndpointParcelable.cpp
@@ -0,0 +1,158 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+#include <utility/AAudioUtilities.h>
+
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/RingBufferParcelable.h"
+#include "binding/AudioEndpointParcelable.h"
+
+using android::NO_ERROR;
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+using namespace aaudio;
+
+/**
+ * Container for information about the message queues plus
+ * general stream information needed by AAudio clients.
+ * It contains no addresses, just sizes, offsets and file descriptors for
+ * shared memory that can be passed through Binder.
+ */
+AudioEndpointParcelable::AudioEndpointParcelable() {}
+
+AudioEndpointParcelable::~AudioEndpointParcelable() {}
+
+/**
+ * Add the file descriptor to the table.
+ * @return index in table or negative error
+ */
+int32_t AudioEndpointParcelable::addFileDescriptor(int fd, int32_t sizeInBytes) {
+    if (mNumSharedMemories >= MAX_SHARED_MEMORIES) {
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+    int32_t index = mNumSharedMemories++;
+    mSharedMemories[index].setup(fd, sizeInBytes);
+    return index;
+}
+
+/**
+ * The read and write must be symmetric.
+ */
+status_t AudioEndpointParcelable::writeToParcel(Parcel* parcel) const {
+    parcel->writeInt32(mNumSharedMemories);
+    for (int i = 0; i < mNumSharedMemories; i++) {
+        mSharedMemories[i].writeToParcel(parcel);
+    }
+    mUpMessageQueueParcelable.writeToParcel(parcel);
+    mDownMessageQueueParcelable.writeToParcel(parcel);
+    mUpDataQueueParcelable.writeToParcel(parcel);
+    mDownDataQueueParcelable.writeToParcel(parcel);
+    return NO_ERROR; // TODO check for errors above
+}
+
+status_t AudioEndpointParcelable::readFromParcel(const Parcel* parcel) {
+    parcel->readInt32(&mNumSharedMemories);
+    for (int i = 0; i < mNumSharedMemories; i++) {
+        mSharedMemories[i].readFromParcel(parcel);
+    }
+    mUpMessageQueueParcelable.readFromParcel(parcel);
+    mDownMessageQueueParcelable.readFromParcel(parcel);
+    mUpDataQueueParcelable.readFromParcel(parcel);
+    mDownDataQueueParcelable.readFromParcel(parcel);
+    return NO_ERROR; // TODO check for errors above
+}
+
+aaudio_result_t AudioEndpointParcelable::resolve(EndpointDescriptor *descriptor) {
+    aaudio_result_t result = mUpMessageQueueParcelable.resolve(mSharedMemories,
+                                                           &descriptor->upMessageQueueDescriptor);
+    if (result != AAUDIO_OK) return result;
+    result = mDownMessageQueueParcelable.resolve(mSharedMemories,
+                                        &descriptor->downMessageQueueDescriptor);
+    if (result != AAUDIO_OK) return result;
+
+    result = mDownDataQueueParcelable.resolve(mSharedMemories,
+                                              &descriptor->dataQueueDescriptor);
+    return result;
+}
+
+aaudio_result_t AudioEndpointParcelable::close() {
+    int err = 0;
+    for (int i = 0; i < mNumSharedMemories; i++) {
+        int lastErr = mSharedMemories[i].close();
+        if (lastErr < 0) err = lastErr;
+    }
+    return AAudioConvert_androidToAAudioResult(err);
+}
+
+aaudio_result_t AudioEndpointParcelable::validate() {
+    aaudio_result_t result;
+    if (mNumSharedMemories < 0 || mNumSharedMemories >= MAX_SHARED_MEMORIES) {
+        ALOGE("AudioEndpointParcelable invalid mNumSharedMemories = %d", mNumSharedMemories);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    for (int i = 0; i < mNumSharedMemories; i++) {
+        result = mSharedMemories[i].validate();
+        if (result != AAUDIO_OK) {
+            ALOGE("AudioEndpointParcelable invalid mSharedMemories[%d] = %d", i, result);
+            return result;
+        }
+    }
+    if ((result = mUpMessageQueueParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("AudioEndpointParcelable invalid mUpMessageQueueParcelable = %d", result);
+        return result;
+    }
+    if ((result = mDownMessageQueueParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("AudioEndpointParcelable invalid mDownMessageQueueParcelable = %d", result);
+        return result;
+    }
+    if ((result = mUpDataQueueParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("AudioEndpointParcelable invalid mUpDataQueueParcelable = %d", result);
+        return result;
+    }
+    if ((result = mDownDataQueueParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("AudioEndpointParcelable invalid mDownDataQueueParcelable = %d", result);
+        return result;
+    }
+    return AAUDIO_OK;
+}
+
+void AudioEndpointParcelable::dump() {
+    ALOGD("AudioEndpointParcelable ======================================= BEGIN");
+    ALOGD("AudioEndpointParcelable mNumSharedMemories = %d", mNumSharedMemories);
+    for (int i = 0; i < mNumSharedMemories; i++) {
+        mSharedMemories[i].dump();
+    }
+    ALOGD("AudioEndpointParcelable mUpMessageQueueParcelable =========");
+    mUpMessageQueueParcelable.dump();
+    ALOGD("AudioEndpointParcelable mDownMessageQueueParcelable =======");
+    mDownMessageQueueParcelable.dump();
+    ALOGD("AudioEndpointParcelable mUpDataQueueParcelable ============");
+    mUpDataQueueParcelable.dump();
+    ALOGD("AudioEndpointParcelable mDownDataQueueParcelable ==========");
+    mDownDataQueueParcelable.dump();
+    ALOGD("AudioEndpointParcelable ======================================= END");
+}
+
diff --git a/media/libaaudio/src/binding/AudioEndpointParcelable.h b/media/libaaudio/src/binding/AudioEndpointParcelable.h
new file mode 100644
index 0000000..993075c
--- /dev/null
+++ b/media/libaaudio/src/binding/AudioEndpointParcelable.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_BINDING_AUDIO_ENDPOINT_PARCELABLE_H
+#define ANDROID_BINDING_AUDIO_ENDPOINT_PARCELABLE_H
+
+#include <stdint.h>
+
+//#include <sys/mman.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/RingBufferParcelable.h"
+
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+namespace aaudio {
+
+/**
+ * Container for information about the message queues plus
+ * general stream information needed by AAudio clients.
+ * It contains no addresses, just sizes, offsets and file descriptors for
+ * shared memory that can be passed through Binder.
+ */
+class AudioEndpointParcelable : public Parcelable {
+public:
+    AudioEndpointParcelable();
+    virtual ~AudioEndpointParcelable();
+
+    /**
+     * Add the file descriptor to the table.
+     * @return index in table or negative error
+     */
+    int32_t addFileDescriptor(int fd, int32_t sizeInBytes);
+
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    aaudio_result_t resolve(EndpointDescriptor *descriptor);
+
+    aaudio_result_t validate();
+
+    aaudio_result_t close();
+
+    void dump();
+
+public: // TODO add getters
+    // Set capacityInFrames to zero if Queue is unused.
+    RingBufferParcelable    mUpMessageQueueParcelable;   // server to client
+    RingBufferParcelable    mDownMessageQueueParcelable; // to server
+    RingBufferParcelable    mUpDataQueueParcelable;      // eg. record, could share same queue
+    RingBufferParcelable    mDownDataQueueParcelable;    // eg. playback
+
+private:
+    int32_t                 mNumSharedMemories = 0;
+    SharedMemoryParcelable  mSharedMemories[MAX_SHARED_MEMORIES];
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_BINDING_AUDIO_ENDPOINT_PARCELABLE_H
diff --git a/media/libaaudio/src/binding/IAAudioService.cpp b/media/libaaudio/src/binding/IAAudioService.cpp
new file mode 100644
index 0000000..b8ef611
--- /dev/null
+++ b/media/libaaudio/src/binding/IAAudioService.cpp
@@ -0,0 +1,356 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <aaudio/AAudio.h>
+
+#include "binding/AudioEndpointParcelable.h"
+#include "binding/AAudioStreamRequest.h"
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/AAudioStreamConfiguration.h"
+#include "binding/IAAudioService.h"
+#include "utility/AAudioUtilities.h"
+
+namespace android {
+
+using aaudio::aaudio_handle_t;
+
+/**
+ * This is used by the AAudio Client to talk to the AAudio Service.
+ *
+ * The order of parameters in the Parcels must match with code in AAudioService.cpp.
+ */
+class BpAAudioService : public BpInterface<IAAudioService>
+{
+public:
+    explicit BpAAudioService(const sp<IBinder>& impl)
+        : BpInterface<IAAudioService>(impl)
+    {
+    }
+
+    virtual aaudio_handle_t openStream(const aaudio::AAudioStreamRequest &request,
+                                     aaudio::AAudioStreamConfiguration &configurationOutput) override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        ALOGV("BpAAudioService::client openStream --------------------");
+        // request.dump();
+        request.writeToParcel(&data);
+        status_t err = remote()->transact(OPEN_STREAM, data, &reply);
+        ALOGV("BpAAudioService::client openStream returned %d", err);
+        if (err != NO_ERROR) {
+            ALOGE("BpAAudioService::client openStream transact failed %d", err);
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_handle_t stream;
+        err = reply.readInt32(&stream);
+        if (err != NO_ERROR) {
+            ALOGE("BpAAudioService::client transact(OPEN_STREAM) readInt %d", err);
+            return AAudioConvert_androidToAAudioResult(err);
+        } else if (stream < 0) {
+            ALOGE("BpAAudioService::client OPEN_STREAM passed stream %d", stream);
+            return stream;
+        }
+        err = configurationOutput.readFromParcel(&reply);
+        if (err != NO_ERROR) {
+            ALOGE("BpAAudioService::client openStream readFromParcel failed %d", err);
+            closeStream(stream);
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        return stream;
+    }
+
+    virtual aaudio_result_t closeStream(aaudio_handle_t streamHandle) override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        status_t err = remote()->transact(CLOSE_STREAM, data, &reply);
+        if (err != NO_ERROR) {
+            ALOGE("BpAAudioService::client closeStream transact failed %d", err);
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+    virtual aaudio_result_t getStreamDescription(aaudio_handle_t streamHandle,
+                                               aaudio::AudioEndpointParcelable &parcelable)   {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        status_t err = remote()->transact(GET_STREAM_DESCRIPTION, data, &reply);
+        if (err != NO_ERROR) {
+            ALOGE("BpAAudioService::client transact(GET_STREAM_DESCRIPTION) returns %d", err);
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t result;
+        err = reply.readInt32(&result);
+        if (err != NO_ERROR) {
+            ALOGE("BpAAudioService::client transact(GET_STREAM_DESCRIPTION) readInt %d", err);
+            return AAudioConvert_androidToAAudioResult(err);
+        } else if (result != AAUDIO_OK) {
+            ALOGE("BpAAudioService::client GET_STREAM_DESCRIPTION passed result %d", result);
+            return result;
+        }
+        err = parcelable.readFromParcel(&reply);;
+        if (err != NO_ERROR) {
+            ALOGE("BpAAudioService::client transact(GET_STREAM_DESCRIPTION) read endpoint %d", err);
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        //parcelable.dump();
+        result = parcelable.validate();
+        if (result != AAUDIO_OK) {
+            ALOGE("BpAAudioService::client GET_STREAM_DESCRIPTION validation fails %d", result);
+            return result;
+        }
+        return result;
+    }
+
+    // TODO should we wait for a reply?
+    virtual aaudio_result_t startStream(aaudio_handle_t streamHandle) override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        status_t err = remote()->transact(START_STREAM, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+    virtual aaudio_result_t pauseStream(aaudio_handle_t streamHandle) override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        status_t err = remote()->transact(PAUSE_STREAM, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+    virtual aaudio_result_t stopStream(aaudio_handle_t streamHandle) override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        status_t err = remote()->transact(STOP_STREAM, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+    virtual aaudio_result_t flushStream(aaudio_handle_t streamHandle) override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        status_t err = remote()->transact(FLUSH_STREAM, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+    virtual aaudio_result_t registerAudioThread(aaudio_handle_t streamHandle,
+                                              pid_t clientProcessId,
+                                              pid_t clientThreadId,
+                                              int64_t periodNanoseconds)
+    override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        data.writeInt32((int32_t) clientProcessId);
+        data.writeInt32((int32_t) clientThreadId);
+        data.writeInt64(periodNanoseconds);
+        status_t err = remote()->transact(REGISTER_AUDIO_THREAD, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+    virtual aaudio_result_t unregisterAudioThread(aaudio_handle_t streamHandle,
+                                                  pid_t clientProcessId,
+                                                  pid_t clientThreadId)
+    override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        data.writeInt32((int32_t) clientProcessId);
+        data.writeInt32((int32_t) clientThreadId);
+        status_t err = remote()->transact(UNREGISTER_AUDIO_THREAD, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+};
+
+// Implement an interface to the service.
+// This is here so that you don't have to link with libaaudio static library.
+IMPLEMENT_META_INTERFACE(AAudioService, "IAAudioService");
+
+// The order of parameters in the Parcels must match with code in BpAAudioService
+
+status_t BnAAudioService::onTransact(uint32_t code, const Parcel& data,
+                                        Parcel* reply, uint32_t flags) {
+    aaudio_handle_t stream;
+    aaudio::AAudioStreamRequest request;
+    aaudio::AAudioStreamConfiguration configuration;
+    pid_t pid;
+    pid_t tid;
+    int64_t nanoseconds;
+    aaudio_result_t result;
+    ALOGV("BnAAudioService::onTransact(%i) %i", code, flags);
+    data.checkInterface(this);
+
+    switch(code) {
+        case OPEN_STREAM: {
+            request.readFromParcel(&data);
+
+            //ALOGD("BnAAudioService::client openStream request dump --------------------");
+            //request.dump();
+
+            stream = openStream(request, configuration);
+            //ALOGD("BnAAudioService::onTransact OPEN_STREAM server handle = 0x%08X", stream);
+            reply->writeInt32(stream);
+            configuration.writeToParcel(reply);
+            return NO_ERROR;
+        } break;
+
+        case CLOSE_STREAM: {
+            data.readInt32(&stream);
+            result = closeStream(stream);
+            //ALOGD("BnAAudioService::onTransact CLOSE_STREAM 0x%08X, result = %d",
+            //      stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case GET_STREAM_DESCRIPTION: {
+            data.readInt32(&stream);
+            aaudio::AudioEndpointParcelable parcelable;
+            result = getStreamDescription(stream, parcelable);
+            if (result != AAUDIO_OK) {
+                return AAudioConvert_aaudioToAndroidStatus(result);
+            }
+            result = parcelable.validate();
+            if (result != AAUDIO_OK) {
+                ALOGE("BnAAudioService::onTransact getStreamDescription() returns %d", result);
+                parcelable.dump();
+                return AAudioConvert_aaudioToAndroidStatus(result);
+            }
+            reply->writeInt32(result);
+            parcelable.writeToParcel(reply);
+            return NO_ERROR;
+        } break;
+
+        case START_STREAM: {
+            data.readInt32(&stream);
+            result = startStream(stream);
+            ALOGV("BnAAudioService::onTransact START_STREAM 0x%08X, result = %d",
+                    stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case PAUSE_STREAM: {
+            data.readInt32(&stream);
+            result = pauseStream(stream);
+            ALOGV("BnAAudioService::onTransact PAUSE_STREAM 0x%08X, result = %d",
+                  stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case STOP_STREAM: {
+            data.readInt32(&stream);
+            result = stopStream(stream);
+            ALOGV("BnAAudioService::onTransact STOP_STREAM 0x%08X, result = %d",
+                  stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case FLUSH_STREAM: {
+            data.readInt32(&stream);
+            result = flushStream(stream);
+            ALOGV("BnAAudioService::onTransact FLUSH_STREAM 0x%08X, result = %d",
+                    stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case REGISTER_AUDIO_THREAD: {
+            data.readInt32(&stream);
+            data.readInt32(&pid);
+            data.readInt32(&tid);
+            data.readInt64(&nanoseconds);
+            result = registerAudioThread(stream, pid, tid, nanoseconds);
+            ALOGV("BnAAudioService::onTransact REGISTER_AUDIO_THREAD 0x%08X, result = %d",
+                    stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case UNREGISTER_AUDIO_THREAD: {
+            data.readInt32(&stream);
+            data.readInt32(&pid);
+            data.readInt32(&tid);
+            result = unregisterAudioThread(stream, pid, tid);
+            ALOGV("BnAAudioService::onTransact UNREGISTER_AUDIO_THREAD 0x%08X, result = %d",
+                    stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        default:
+            // ALOGW("BnAAudioService::onTransact not handled %u", code);
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+} /* namespace android */
diff --git a/media/libaaudio/src/binding/IAAudioService.h b/media/libaaudio/src/binding/IAAudioService.h
new file mode 100644
index 0000000..44a5e12
--- /dev/null
+++ b/media/libaaudio/src/binding/IAAudioService.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AAUDIO_IAAUDIO_SERVICE_H
+#define ANDROID_AAUDIO_IAAUDIO_SERVICE_H
+
+#include <stdint.h>
+#include <utils/RefBase.h>
+#include <binder/TextOutput.h>
+#include <binder/IInterface.h>
+
+#include <aaudio/AAudio.h>
+
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/AudioEndpointParcelable.h"
+#include "binding/AAudioStreamRequest.h"
+#include "binding/AAudioStreamConfiguration.h"
+#include "utility/HandleTracker.h"
+
+namespace android {
+
+#define AAUDIO_SERVICE_NAME  "media.aaudio"
+
+// Interface (our AIDL) - Shared by server and client
+class IAAudioService : public IInterface {
+public:
+
+    DECLARE_META_INTERFACE(AAudioService);
+
+    /**
+     * @param request info needed to create the stream
+     * @param configuration contains information about the created stream
+     * @return handle to the stream or a negative error
+     */
+    virtual aaudio_handle_t openStream(const aaudio::AAudioStreamRequest &request,
+                                     aaudio::AAudioStreamConfiguration &configurationOutput) = 0;
+
+    virtual aaudio_result_t closeStream(aaudio::aaudio_handle_t streamHandle) = 0;
+
+    /* Get an immutable description of the in-memory queues
+    * used to communicate with the underlying HAL or Service.
+    */
+    virtual aaudio_result_t getStreamDescription(aaudio::aaudio_handle_t streamHandle,
+                                               aaudio::AudioEndpointParcelable &parcelable) = 0;
+
+    /**
+     * Start the flow of data.
+     * This is asynchronous. When complete, the service will send a STARTED event.
+     */
+    virtual aaudio_result_t startStream(aaudio::aaudio_handle_t streamHandle) = 0;
+
+    /**
+     * Stop the flow of data such that start() can resume without loss of data.
+     * This is asynchronous. When complete, the service will send a PAUSED event.
+     */
+    virtual aaudio_result_t pauseStream(aaudio::aaudio_handle_t streamHandle) = 0;
+
+    /**
+     * Stop the flow of data such that the data currently in the buffer is played.
+     * This is asynchronous. When complete, the service will send a STOPPED event.
+     */
+    virtual aaudio_result_t stopStream(aaudio::aaudio_handle_t streamHandle) = 0;
+
+    /**
+     *  Discard any data held by the underlying HAL or Service.
+     * This is asynchronous. When complete, the service will send a FLUSHED event.
+     */
+    virtual aaudio_result_t flushStream(aaudio::aaudio_handle_t streamHandle) = 0;
+
+    /**
+     * Manage the specified thread as a low latency audio thread.
+     * TODO Consider passing this information as part of the startStream() call.
+     */
+    virtual aaudio_result_t registerAudioThread(aaudio_handle_t streamHandle,
+                                              pid_t clientProcessId,
+                                              pid_t clientThreadId,
+                                              int64_t periodNanoseconds) = 0;
+
+    virtual aaudio_result_t unregisterAudioThread(aaudio_handle_t streamHandle,
+                                                pid_t clientProcessId,
+                                                pid_t clientThreadId) = 0;
+};
+
+class BnAAudioService : public BnInterface<IAAudioService> {
+public:
+    virtual status_t onTransact(uint32_t code, const Parcel& data,
+                                Parcel* reply, uint32_t flags = 0);
+
+};
+
+} /* namespace android */
+
+#endif //ANDROID_AAUDIO_IAAUDIO_SERVICE_H
diff --git a/media/libaaudio/src/binding/RingBufferParcelable.cpp b/media/libaaudio/src/binding/RingBufferParcelable.cpp
new file mode 100644
index 0000000..6b74b21
--- /dev/null
+++ b/media/libaaudio/src/binding/RingBufferParcelable.cpp
@@ -0,0 +1,194 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+
+#include <binder/Parcelable.h>
+
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/SharedRegionParcelable.h"
+#include "binding/RingBufferParcelable.h"
+
+using namespace aaudio;
+
+RingBufferParcelable::RingBufferParcelable() {}
+RingBufferParcelable::~RingBufferParcelable() {}
+
+// TODO This assumes that all three use the same SharedMemoryParcelable
+void RingBufferParcelable::setupMemory(int32_t sharedMemoryIndex,
+                 int32_t dataMemoryOffset,
+                 int32_t dataSizeInBytes,
+                 int32_t readCounterOffset,
+                 int32_t writeCounterOffset,
+                 int32_t counterSizeBytes) {
+    mReadCounterParcelable.setup(sharedMemoryIndex, readCounterOffset, counterSizeBytes);
+    mWriteCounterParcelable.setup(sharedMemoryIndex, writeCounterOffset, counterSizeBytes);
+    mDataParcelable.setup(sharedMemoryIndex, dataMemoryOffset, dataSizeInBytes);
+}
+
+void RingBufferParcelable::setupMemory(int32_t sharedMemoryIndex,
+                 int32_t dataMemoryOffset,
+                 int32_t dataSizeInBytes) {
+    mReadCounterParcelable.setup(sharedMemoryIndex, 0, 0);
+    mWriteCounterParcelable.setup(sharedMemoryIndex, 0, 0);
+    mDataParcelable.setup(sharedMemoryIndex, dataMemoryOffset, dataSizeInBytes);
+}
+
+int32_t RingBufferParcelable::getBytesPerFrame() {
+    return mBytesPerFrame;
+}
+
+void RingBufferParcelable::setBytesPerFrame(int32_t bytesPerFrame) {
+    mBytesPerFrame = bytesPerFrame;
+}
+
+int32_t RingBufferParcelable::getFramesPerBurst() {
+    return mFramesPerBurst;
+}
+
+void RingBufferParcelable::setFramesPerBurst(int32_t framesPerBurst) {
+    mFramesPerBurst = framesPerBurst;
+}
+
+int32_t RingBufferParcelable::getCapacityInFrames() {
+    return mCapacityInFrames;
+}
+
+void RingBufferParcelable::setCapacityInFrames(int32_t capacityInFrames) {
+    mCapacityInFrames = capacityInFrames;
+}
+
+/**
+ * The read and write must be symmetric.
+ */
+status_t RingBufferParcelable::writeToParcel(Parcel* parcel) const {
+    status_t status = parcel->writeInt32(mCapacityInFrames);
+    if (status != NO_ERROR) goto error;
+    if (mCapacityInFrames > 0) {
+        status = parcel->writeInt32(mBytesPerFrame);
+        if (status != NO_ERROR) goto error;
+        status = parcel->writeInt32(mFramesPerBurst);
+        if (status != NO_ERROR) goto error;
+        status = parcel->writeInt32(mFlags);
+        if (status != NO_ERROR) goto error;
+        status = mReadCounterParcelable.writeToParcel(parcel);
+        if (status != NO_ERROR) goto error;
+        status = mWriteCounterParcelable.writeToParcel(parcel);
+        if (status != NO_ERROR) goto error;
+        status = mDataParcelable.writeToParcel(parcel);
+        if (status != NO_ERROR) goto error;
+    }
+    return NO_ERROR;
+error:
+    ALOGE("RingBufferParcelable::writeToParcel() error = %d", status);
+    return status;
+}
+
+status_t RingBufferParcelable::readFromParcel(const Parcel* parcel) {
+    status_t status = parcel->readInt32(&mCapacityInFrames);
+    if (status != NO_ERROR) goto error;
+    if (mCapacityInFrames > 0) {
+        status = parcel->readInt32(&mBytesPerFrame);
+        if (status != NO_ERROR) goto error;
+        status = parcel->readInt32(&mFramesPerBurst);
+        if (status != NO_ERROR) goto error;
+        status = parcel->readInt32((int32_t *)&mFlags);
+        if (status != NO_ERROR) goto error;
+        status = mReadCounterParcelable.readFromParcel(parcel);
+        if (status != NO_ERROR) goto error;
+        status = mWriteCounterParcelable.readFromParcel(parcel);
+        if (status != NO_ERROR) goto error;
+        status = mDataParcelable.readFromParcel(parcel);
+        if (status != NO_ERROR) goto error;
+    }
+    return NO_ERROR;
+error:
+    ALOGE("RingBufferParcelable::readFromParcel() error = %d", status);
+    return status;
+}
+
+aaudio_result_t RingBufferParcelable::resolve(SharedMemoryParcelable *memoryParcels, RingBufferDescriptor *descriptor) {
+    aaudio_result_t result;
+
+    result = mReadCounterParcelable.resolve(memoryParcels,
+                                            (void **) &descriptor->readCounterAddress);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    result = mWriteCounterParcelable.resolve(memoryParcels,
+                                             (void **) &descriptor->writeCounterAddress);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    result = mDataParcelable.resolve(memoryParcels, (void **) &descriptor->dataAddress);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    descriptor->bytesPerFrame = mBytesPerFrame;
+    descriptor->framesPerBurst = mFramesPerBurst;
+    descriptor->capacityInFrames = mCapacityInFrames;
+    descriptor->flags = mFlags;
+    return AAUDIO_OK;
+}
+
+aaudio_result_t RingBufferParcelable::validate() {
+    aaudio_result_t result;
+    if (mCapacityInFrames < 0 || mCapacityInFrames >= 32 * 1024) {
+        ALOGE("RingBufferParcelable invalid mCapacityInFrames = %d", mCapacityInFrames);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    if (mBytesPerFrame < 0 || mBytesPerFrame >= 256) {
+        ALOGE("RingBufferParcelable invalid mBytesPerFrame = %d", mBytesPerFrame);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    if (mFramesPerBurst < 0 || mFramesPerBurst >= 16 * 1024) {
+        ALOGE("RingBufferParcelable invalid mFramesPerBurst = %d", mFramesPerBurst);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    if ((result = mReadCounterParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("RingBufferParcelable invalid mReadCounterParcelable = %d", result);
+        return result;
+    }
+    if ((result = mWriteCounterParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("RingBufferParcelable invalid mWriteCounterParcelable = %d", result);
+        return result;
+    }
+    if ((result = mDataParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("RingBufferParcelable invalid mDataParcelable = %d", result);
+        return result;
+    }
+    return AAUDIO_OK;
+}
+
+
+void RingBufferParcelable::dump() {
+    ALOGD("RingBufferParcelable mCapacityInFrames = %d ---------", mCapacityInFrames);
+    if (mCapacityInFrames > 0) {
+        ALOGD("RingBufferParcelable mBytesPerFrame = %d", mBytesPerFrame);
+        ALOGD("RingBufferParcelable mFramesPerBurst = %d", mFramesPerBurst);
+        ALOGD("RingBufferParcelable mFlags = %u", mFlags);
+        mReadCounterParcelable.dump();
+        mWriteCounterParcelable.dump();
+        mDataParcelable.dump();
+    }
+}
diff --git a/media/libaaudio/src/binding/RingBufferParcelable.h b/media/libaaudio/src/binding/RingBufferParcelable.h
new file mode 100644
index 0000000..bd562f2
--- /dev/null
+++ b/media/libaaudio/src/binding/RingBufferParcelable.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AAUDIO_RINGBUFFER_PARCELABLE_H
+#define ANDROID_AAUDIO_RINGBUFFER_PARCELABLE_H
+
+#include <stdint.h>
+
+#include <binder/Parcelable.h>
+
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/SharedRegionParcelable.h"
+
+namespace aaudio {
+
+class RingBufferParcelable : public Parcelable {
+public:
+    RingBufferParcelable();
+    virtual ~RingBufferParcelable();
+
+    // TODO This assumes that all three use the same SharedMemoryParcelable
+    void setupMemory(int32_t sharedMemoryIndex,
+                     int32_t dataMemoryOffset,
+                     int32_t dataSizeInBytes,
+                     int32_t readCounterOffset,
+                     int32_t writeCounterOffset,
+                     int32_t counterSizeBytes);
+
+    void setupMemory(int32_t sharedMemoryIndex,
+                     int32_t dataMemoryOffset,
+                     int32_t dataSizeInBytes);
+
+    int32_t getBytesPerFrame();
+
+    void setBytesPerFrame(int32_t bytesPerFrame);
+
+    int32_t getFramesPerBurst();
+
+    void setFramesPerBurst(int32_t framesPerBurst);
+
+    int32_t getCapacityInFrames();
+
+    void setCapacityInFrames(int32_t capacityInFrames);
+
+    bool isFileDescriptorSafe(SharedMemoryParcelable *memoryParcels);
+
+    /**
+     * The read and write must be symmetric.
+     */
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    aaudio_result_t resolve(SharedMemoryParcelable *memoryParcels, RingBufferDescriptor *descriptor);
+
+    aaudio_result_t validate();
+
+    void dump();
+
+private:
+    SharedRegionParcelable  mReadCounterParcelable;
+    SharedRegionParcelable  mWriteCounterParcelable;
+    SharedRegionParcelable  mDataParcelable;
+    int32_t                 mBytesPerFrame = 0;     // index is in frames
+    int32_t                 mFramesPerBurst = 0;    // for ISOCHRONOUS queues
+    int32_t                 mCapacityInFrames = 0;  // zero if unused
+    RingbufferFlags         mFlags = RingbufferFlags::NONE;
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_AAUDIO_RINGBUFFER_PARCELABLE_H
diff --git a/media/libaaudio/src/binding/SharedMemoryParcelable.cpp b/media/libaaudio/src/binding/SharedMemoryParcelable.cpp
new file mode 100644
index 0000000..899eb04
--- /dev/null
+++ b/media/libaaudio/src/binding/SharedMemoryParcelable.cpp
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <stdio.h>
+
+#include <sys/mman.h>
+#include <aaudio/AAudio.h>
+
+#include <binder/Parcelable.h>
+#include <utility/AAudioUtilities.h>
+
+#include "binding/SharedMemoryParcelable.h"
+
+using android::NO_ERROR;
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+using namespace aaudio;
+
+SharedMemoryParcelable::SharedMemoryParcelable() {}
+SharedMemoryParcelable::~SharedMemoryParcelable() {};
+
+void SharedMemoryParcelable::setup(int fd, int32_t sizeInBytes) {
+    mFd = fd;
+    mSizeInBytes = sizeInBytes;
+
+}
+
+status_t SharedMemoryParcelable::writeToParcel(Parcel* parcel) const {
+    status_t status = parcel->writeInt32(mSizeInBytes);
+    if (status != NO_ERROR) return status;
+    if (mSizeInBytes > 0) {
+        status = parcel->writeDupFileDescriptor(mFd);
+        ALOGE_IF(status != NO_ERROR, "SharedMemoryParcelable writeDupFileDescriptor failed : %d",
+                 status);
+    }
+    return status;
+}
+
+status_t SharedMemoryParcelable::readFromParcel(const Parcel* parcel) {
+    status_t status = parcel->readInt32(&mSizeInBytes);
+    if (status != NO_ERROR) {
+        return status;
+    }
+    if (mSizeInBytes > 0) {
+        // Keep the original FD until you are done with the mFd.
+        // If you close it in here then it will prevent mFd from working.
+        mOriginalFd = parcel->readFileDescriptor();
+        ALOGV("SharedMemoryParcelable::readFromParcel() LEAK? mOriginalFd = %d\n", mOriginalFd);
+        mFd = fcntl(mOriginalFd, F_DUPFD_CLOEXEC, 0);
+        ALOGV("SharedMemoryParcelable::readFromParcel() LEAK? mFd = %d\n", mFd);
+        if (mFd == -1) {
+            status = -errno;
+            ALOGE("SharedMemoryParcelable readFromParcel fcntl() failed : %d", status);
+        }
+    }
+    return status;
+}
+
+aaudio_result_t SharedMemoryParcelable::close() {
+    if (mResolvedAddress != MMAP_UNRESOLVED_ADDRESS) {
+        int err = munmap(mResolvedAddress, mSizeInBytes);
+        if (err < 0) {
+            ALOGE("SharedMemoryParcelable::close() munmap() failed %d", err);
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        mResolvedAddress = MMAP_UNRESOLVED_ADDRESS;
+    }
+    if (mFd != -1) {
+        ALOGV("SharedMemoryParcelable::close() LEAK? mFd = %d\n", mFd);
+        ::close(mFd);
+        mFd = -1;
+    }
+    if (mOriginalFd != -1) {
+        ALOGV("SharedMemoryParcelable::close() LEAK? mOriginalFd = %d\n", mOriginalFd);
+        ::close(mOriginalFd);
+        mOriginalFd = -1;
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t SharedMemoryParcelable::resolve(int32_t offsetInBytes, int32_t sizeInBytes,
+                                              void **regionAddressPtr) {
+
+    if (offsetInBytes < 0) {
+        ALOGE("SharedMemoryParcelable illegal offsetInBytes = %d", offsetInBytes);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    } else if ((offsetInBytes + sizeInBytes) > mSizeInBytes) {
+        ALOGE("SharedMemoryParcelable out of range, offsetInBytes = %d, "
+              "sizeInBytes = %d, mSizeInBytes = %d",
+              offsetInBytes, sizeInBytes, mSizeInBytes);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+    if (mResolvedAddress == MMAP_UNRESOLVED_ADDRESS) {
+        mResolvedAddress = (uint8_t *) mmap(0, mSizeInBytes, PROT_READ|PROT_WRITE,
+                                          MAP_SHARED, mFd, 0);
+        if (mResolvedAddress == MMAP_UNRESOLVED_ADDRESS) {
+            ALOGE("SharedMemoryParcelable mmap failed for fd = %d, errno = %s",
+                  mFd, strerror(errno));
+            return AAUDIO_ERROR_INTERNAL;
+        }
+    }
+    *regionAddressPtr = mResolvedAddress + offsetInBytes;
+    ALOGV("SharedMemoryParcelable mResolvedAddress = %p", mResolvedAddress);
+    ALOGV("SharedMemoryParcelable offset by %d, *regionAddressPtr = %p",
+          offsetInBytes, *regionAddressPtr);
+    return AAUDIO_OK;
+}
+
+int32_t SharedMemoryParcelable::getSizeInBytes() {
+    return mSizeInBytes;
+}
+
+aaudio_result_t SharedMemoryParcelable::validate() {
+    if (mSizeInBytes < 0 || mSizeInBytes >= MAX_MMAP_SIZE_BYTES) {
+        ALOGE("SharedMemoryParcelable invalid mSizeInBytes = %d", mSizeInBytes);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+    if (mSizeInBytes > 0) {
+        if (mFd == -1) {
+            ALOGE("SharedMemoryParcelable uninitialized mFd = %d", mFd);
+            return AAUDIO_ERROR_INTERNAL;
+        }
+    }
+    return AAUDIO_OK;
+}
+
+void SharedMemoryParcelable::dump() {
+    ALOGD("SharedMemoryParcelable mFd = %d", mFd);
+    ALOGD("SharedMemoryParcelable mSizeInBytes = %d", mSizeInBytes);
+    ALOGD("SharedMemoryParcelable mResolvedAddress = %p", mResolvedAddress);
+}
diff --git a/media/libaaudio/src/binding/SharedMemoryParcelable.h b/media/libaaudio/src/binding/SharedMemoryParcelable.h
new file mode 100644
index 0000000..4b94b46
--- /dev/null
+++ b/media/libaaudio/src/binding/SharedMemoryParcelable.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AAUDIO_SHARED_MEMORY_PARCELABLE_H
+#define ANDROID_AAUDIO_SHARED_MEMORY_PARCELABLE_H
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+namespace aaudio {
+
+// Arbitrary limits for sanity checks. TODO remove after debugging.
+#define MAX_SHARED_MEMORIES (32)
+#define MAX_MMAP_OFFSET_BYTES (32 * 1024 * 8)
+#define MAX_MMAP_SIZE_BYTES (32 * 1024 * 8)
+
+/**
+ * This is a parcelable description of a shared memory referenced by a file descriptor.
+ * It may be divided into several regions.
+ */
+class SharedMemoryParcelable : public Parcelable {
+public:
+    SharedMemoryParcelable();
+    virtual ~SharedMemoryParcelable();
+
+    void setup(int fd, int32_t sizeInBytes);
+
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    // mmap() shared memory
+    aaudio_result_t resolve(int32_t offsetInBytes, int32_t sizeInBytes, void **regionAddressPtr);
+
+    // munmap() any mapped memory
+    aaudio_result_t close();
+
+    bool isFileDescriptorSafe();
+
+    int32_t getSizeInBytes();
+
+    aaudio_result_t validate();
+
+    void dump();
+
+protected:
+
+#define MMAP_UNRESOLVED_ADDRESS    reinterpret_cast<uint8_t*>(MAP_FAILED)
+
+    int      mFd = -1;
+    int      mOriginalFd = -1;
+    int32_t  mSizeInBytes = 0;
+    uint8_t *mResolvedAddress = MMAP_UNRESOLVED_ADDRESS;
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_AAUDIO_SHARED_MEMORY_PARCELABLE_H
diff --git a/media/libaaudio/src/binding/SharedRegionParcelable.cpp b/media/libaaudio/src/binding/SharedRegionParcelable.cpp
new file mode 100644
index 0000000..7381dcb
--- /dev/null
+++ b/media/libaaudio/src/binding/SharedRegionParcelable.cpp
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <binder/Parcelable.h>
+
+#include <aaudio/AAudio.h>
+
+#include "binding/SharedMemoryParcelable.h"
+#include "binding/SharedRegionParcelable.h"
+
+using android::NO_ERROR;
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+using namespace aaudio;
+
+SharedRegionParcelable::SharedRegionParcelable() {}
+SharedRegionParcelable::~SharedRegionParcelable() {}
+
+void SharedRegionParcelable::setup(int32_t sharedMemoryIndex,
+                                   int32_t offsetInBytes,
+                                   int32_t sizeInBytes) {
+    mSharedMemoryIndex = sharedMemoryIndex;
+    mOffsetInBytes = offsetInBytes;
+    mSizeInBytes = sizeInBytes;
+}
+
+status_t SharedRegionParcelable::writeToParcel(Parcel* parcel) const {
+    parcel->writeInt32(mSizeInBytes);
+    if (mSizeInBytes > 0) {
+        parcel->writeInt32(mSharedMemoryIndex);
+        parcel->writeInt32(mOffsetInBytes);
+    }
+    return NO_ERROR; // TODO check for errors above
+}
+
+status_t SharedRegionParcelable::readFromParcel(const Parcel* parcel) {
+    parcel->readInt32(&mSizeInBytes);
+    if (mSizeInBytes > 0) {
+        parcel->readInt32(&mSharedMemoryIndex);
+        parcel->readInt32(&mOffsetInBytes);
+    }
+    return NO_ERROR; // TODO check for errors above
+}
+
+aaudio_result_t SharedRegionParcelable::resolve(SharedMemoryParcelable *memoryParcels,
+                                              void **regionAddressPtr) {
+    if (mSizeInBytes == 0) {
+        *regionAddressPtr = nullptr;
+        return AAUDIO_OK;
+    }
+    if (mSharedMemoryIndex < 0) {
+        ALOGE("SharedRegionParcelable invalid mSharedMemoryIndex = %d", mSharedMemoryIndex);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    SharedMemoryParcelable *memoryParcel = &memoryParcels[mSharedMemoryIndex];
+    return memoryParcel->resolve(mOffsetInBytes, mSizeInBytes, regionAddressPtr);
+}
+
+aaudio_result_t SharedRegionParcelable::validate() {
+    if (mSizeInBytes < 0 || mSizeInBytes >= MAX_MMAP_SIZE_BYTES) {
+        ALOGE("SharedRegionParcelable invalid mSizeInBytes = %d", mSizeInBytes);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+    if (mSizeInBytes > 0) {
+        if (mOffsetInBytes < 0 || mOffsetInBytes >= MAX_MMAP_OFFSET_BYTES) {
+            ALOGE("SharedRegionParcelable invalid mOffsetInBytes = %d", mOffsetInBytes);
+            return AAUDIO_ERROR_OUT_OF_RANGE;
+        }
+        if (mSharedMemoryIndex < 0 || mSharedMemoryIndex >= MAX_SHARED_MEMORIES) {
+            ALOGE("SharedRegionParcelable invalid mSharedMemoryIndex = %d", mSharedMemoryIndex);
+            return AAUDIO_ERROR_INTERNAL;
+        }
+    }
+    return AAUDIO_OK;
+}
+
+void SharedRegionParcelable::dump() {
+    ALOGD("SharedRegionParcelable mSizeInBytes = %d -----", mSizeInBytes);
+    if (mSizeInBytes > 0) {
+        ALOGD("SharedRegionParcelable mSharedMemoryIndex = %d", mSharedMemoryIndex);
+        ALOGD("SharedRegionParcelable mOffsetInBytes = %d", mOffsetInBytes);
+    }
+}
diff --git a/media/libaaudio/src/binding/SharedRegionParcelable.h b/media/libaaudio/src/binding/SharedRegionParcelable.h
new file mode 100644
index 0000000..f6babfd
--- /dev/null
+++ b/media/libaaudio/src/binding/SharedRegionParcelable.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AAUDIO_SHARED_REGION_PARCELABLE_H
+#define ANDROID_AAUDIO_SHARED_REGION_PARCELABLE_H
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <binder/Parcelable.h>
+
+#include <aaudio/AAudio.h>
+
+#include "binding/SharedMemoryParcelable.h"
+
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+namespace aaudio {
+
+class SharedRegionParcelable : public Parcelable {
+public:
+    SharedRegionParcelable();
+    virtual ~SharedRegionParcelable();
+
+    void setup(int32_t sharedMemoryIndex, int32_t offsetInBytes, int32_t sizeInBytes);
+
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    aaudio_result_t resolve(SharedMemoryParcelable *memoryParcels, void **regionAddressPtr);
+
+    bool isFileDescriptorSafe(SharedMemoryParcelable *memoryParcels);
+
+    aaudio_result_t validate();
+
+    void dump();
+
+protected:
+    int32_t mSharedMemoryIndex = -1;
+    int32_t mOffsetInBytes     = 0;
+    int32_t mSizeInBytes       = 0;
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_AAUDIO_SHARED_REGION_PARCELABLE_H
diff --git a/media/libaaudio/src/client/AudioEndpoint.cpp b/media/libaaudio/src/client/AudioEndpoint.cpp
new file mode 100644
index 0000000..5cb642b
--- /dev/null
+++ b/media/libaaudio/src/client/AudioEndpoint.cpp
@@ -0,0 +1,248 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <cassert>
+#include <aaudio/AAudio.h>
+
+#include "AudioEndpointParcelable.h"
+#include "AudioEndpoint.h"
+#include "AAudioServiceMessage.h"
+
+using namespace android;
+using namespace aaudio;
+
+#define RIDICULOUSLY_LARGE_BUFFER_CAPACITY   (256 * 1024)
+#define RIDICULOUSLY_LARGE_FRAME_SIZE        4096
+
+AudioEndpoint::AudioEndpoint()
+    : mFreeRunning(false)
+    , mDataReadCounter(0)
+    , mDataWriteCounter(0)
+{
+}
+
+AudioEndpoint::~AudioEndpoint()
+{
+}
+
+static aaudio_result_t AudioEndpoint_validateQueueDescriptor(const char *type,
+                                                  const RingBufferDescriptor *descriptor) {
+    if (descriptor == nullptr) {
+        ALOGE("AudioEndpoint_validateQueueDescriptor() NULL descriptor");
+        return AAUDIO_ERROR_NULL;
+    }
+
+    if (descriptor->capacityInFrames < 1
+        || descriptor->capacityInFrames > RIDICULOUSLY_LARGE_BUFFER_CAPACITY) {
+        ALOGE("AudioEndpoint_validateQueueDescriptor() bad capacityInFrames = %d",
+              descriptor->capacityInFrames);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+
+    // Reject extreme values to catch bugs and prevent numeric overflows.
+    if (descriptor->bytesPerFrame < 1
+        || descriptor->bytesPerFrame > RIDICULOUSLY_LARGE_FRAME_SIZE) {
+        ALOGE("AudioEndpoint_validateQueueDescriptor() bad bytesPerFrame = %d",
+              descriptor->bytesPerFrame);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+
+    if (descriptor->dataAddress == nullptr) {
+        ALOGE("AudioEndpoint_validateQueueDescriptor() NULL dataAddress");
+        return AAUDIO_ERROR_NULL;
+    }
+    ALOGV("AudioEndpoint_validateQueueDescriptor %s, dataAddress at %p ====================",
+          type,
+          descriptor->dataAddress);
+    ALOGV("AudioEndpoint_validateQueueDescriptor  readCounter at %p, writeCounter at %p",
+          descriptor->readCounterAddress,
+          descriptor->writeCounterAddress);
+
+    // Try to READ from the data area.
+    // This code will crash if the mmap failed.
+    uint8_t value = descriptor->dataAddress[0];
+    ALOGV("AudioEndpoint_validateQueueDescriptor() dataAddress[0] = %d, then try to write",
+        (int) value);
+    // Try to WRITE to the data area.
+    descriptor->dataAddress[0] = value * 3;
+    ALOGV("AudioEndpoint_validateQueueDescriptor() wrote successfully");
+
+    if (descriptor->readCounterAddress) {
+        fifo_counter_t counter = *descriptor->readCounterAddress;
+        ALOGV("AudioEndpoint_validateQueueDescriptor() *readCounterAddress = %d, now write",
+              (int) counter);
+        *descriptor->readCounterAddress = counter;
+        ALOGV("AudioEndpoint_validateQueueDescriptor() wrote readCounterAddress successfully");
+    }
+
+    if (descriptor->writeCounterAddress) {
+        fifo_counter_t counter = *descriptor->writeCounterAddress;
+        ALOGV("AudioEndpoint_validateQueueDescriptor() *writeCounterAddress = %d, now write",
+              (int) counter);
+        *descriptor->writeCounterAddress = counter;
+        ALOGV("AudioEndpoint_validateQueueDescriptor() wrote writeCounterAddress successfully");
+    }
+
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioEndpoint_validateDescriptor(const EndpointDescriptor *pEndpointDescriptor) {
+    aaudio_result_t result = AudioEndpoint_validateQueueDescriptor("messages",
+                                    &pEndpointDescriptor->upMessageQueueDescriptor);
+    if (result == AAUDIO_OK) {
+        result = AudioEndpoint_validateQueueDescriptor("data",
+                                                &pEndpointDescriptor->dataQueueDescriptor);
+    }
+    return result;
+}
+
+aaudio_result_t AudioEndpoint::configure(const EndpointDescriptor *pEndpointDescriptor)
+{
+    aaudio_result_t result = AudioEndpoint_validateDescriptor(pEndpointDescriptor);
+    if (result != AAUDIO_OK) {
+        ALOGE("AudioEndpoint_validateQueueDescriptor returned %d %s",
+              result, AAudio_convertResultToText(result));
+        return result;
+    }
+
+    // ============================ up message queue =============================
+    const RingBufferDescriptor *descriptor = &pEndpointDescriptor->upMessageQueueDescriptor;
+    if(descriptor->bytesPerFrame != sizeof(AAudioServiceMessage)) {
+        ALOGE("AudioEndpoint::configure() bytesPerFrame != sizeof(AAudioServiceMessage) = %d",
+              descriptor->bytesPerFrame);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+
+    if(descriptor->readCounterAddress == nullptr || descriptor->writeCounterAddress == nullptr) {
+        ALOGE("AudioEndpoint_validateQueueDescriptor() NULL counter address");
+        return AAUDIO_ERROR_NULL;
+    }
+
+    mUpCommandQueue = new FifoBuffer(
+            descriptor->bytesPerFrame,
+            descriptor->capacityInFrames,
+            descriptor->readCounterAddress,
+            descriptor->writeCounterAddress,
+            descriptor->dataAddress
+    );
+
+    // ============================ down data queue =============================
+    descriptor = &pEndpointDescriptor->dataQueueDescriptor;
+    ALOGV("AudioEndpoint::configure() data framesPerBurst = %d", descriptor->framesPerBurst);
+    ALOGV("AudioEndpoint::configure() data readCounterAddress = %p", descriptor->readCounterAddress);
+    mFreeRunning = descriptor->readCounterAddress == nullptr;
+    ALOGV("AudioEndpoint::configure() mFreeRunning = %d", mFreeRunning ? 1 : 0);
+    int64_t *readCounterAddress = (descriptor->readCounterAddress == nullptr)
+                                  ? &mDataReadCounter
+                                  : descriptor->readCounterAddress;
+    int64_t *writeCounterAddress = (descriptor->writeCounterAddress == nullptr)
+                                  ? &mDataWriteCounter
+                                  : descriptor->writeCounterAddress;
+
+    mDataQueue = new FifoBuffer(
+            descriptor->bytesPerFrame,
+            descriptor->capacityInFrames,
+            readCounterAddress,
+            writeCounterAddress,
+            descriptor->dataAddress
+    );
+    uint32_t threshold = descriptor->capacityInFrames / 2;
+    mDataQueue->setThreshold(threshold);
+    return result;
+}
+
+aaudio_result_t AudioEndpoint::readUpCommand(AAudioServiceMessage *commandPtr)
+{
+    return mUpCommandQueue->read(commandPtr, 1);
+}
+
+aaudio_result_t AudioEndpoint::writeDataNow(const void *buffer, int32_t numFrames)
+{
+    return mDataQueue->write(buffer, numFrames);
+}
+
+void AudioEndpoint::getEmptyFramesAvailable(WrappingBuffer *wrappingBuffer) {
+    mDataQueue->getEmptyRoomAvailable(wrappingBuffer);
+}
+
+int32_t AudioEndpoint::getEmptyFramesAvailable()
+{
+    return mDataQueue->getFifoControllerBase()->getEmptyFramesAvailable();
+}
+
+void AudioEndpoint::getFullFramesAvailable(WrappingBuffer *wrappingBuffer)
+{
+    return mDataQueue->getFullDataAvailable(wrappingBuffer);
+}
+
+int32_t AudioEndpoint::getFullFramesAvailable()
+{
+    return mDataQueue->getFifoControllerBase()->getFullFramesAvailable();
+}
+
+void AudioEndpoint::advanceWriteIndex(int32_t deltaFrames) {
+    mDataQueue->getFifoControllerBase()->advanceWriteIndex(deltaFrames);
+}
+
+void AudioEndpoint::advanceReadIndex(int32_t deltaFrames) {
+    mDataQueue->getFifoControllerBase()->advanceReadIndex(deltaFrames);
+}
+
+void AudioEndpoint::setDataReadCounter(fifo_counter_t framesRead)
+{
+    mDataQueue->setReadCounter(framesRead);
+}
+
+fifo_counter_t AudioEndpoint::getDataReadCounter()
+{
+    return mDataQueue->getReadCounter();
+}
+
+void AudioEndpoint::setDataWriteCounter(fifo_counter_t framesRead)
+{
+    mDataQueue->setWriteCounter(framesRead);
+}
+
+fifo_counter_t AudioEndpoint::getDataWriteCounter()
+{
+    return mDataQueue->getWriteCounter();
+}
+
+int32_t AudioEndpoint::setBufferSizeInFrames(int32_t requestedFrames,
+                                            int32_t *actualFrames)
+{
+    if (requestedFrames < ENDPOINT_DATA_QUEUE_SIZE_MIN) {
+        requestedFrames = ENDPOINT_DATA_QUEUE_SIZE_MIN;
+    }
+    mDataQueue->setThreshold(requestedFrames);
+    *actualFrames = mDataQueue->getThreshold();
+    return AAUDIO_OK;
+}
+
+int32_t AudioEndpoint::getBufferSizeInFrames() const
+{
+    return mDataQueue->getThreshold();
+}
+
+int32_t AudioEndpoint::getBufferCapacityInFrames() const
+{
+    return (int32_t)mDataQueue->getBufferCapacityInFrames();
+}
+
diff --git a/media/libaaudio/src/client/AudioEndpoint.h b/media/libaaudio/src/client/AudioEndpoint.h
new file mode 100644
index 0000000..53ba033
--- /dev/null
+++ b/media/libaaudio/src/client/AudioEndpoint.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AAUDIO_AUDIO_ENDPOINT_H
+#define ANDROID_AAUDIO_AUDIO_ENDPOINT_H
+
+#include <aaudio/AAudio.h>
+
+#include "binding/AAudioServiceMessage.h"
+#include "binding/AudioEndpointParcelable.h"
+#include "fifo/FifoBuffer.h"
+
+namespace aaudio {
+
+#define ENDPOINT_DATA_QUEUE_SIZE_MIN   48
+
+/**
+ * A sink for audio.
+ * Used by the client code.
+ */
+class AudioEndpoint {
+
+public:
+    AudioEndpoint();
+    virtual ~AudioEndpoint();
+
+    /**
+     * Configure based on the EndPointDescriptor_t.
+     */
+    aaudio_result_t configure(const EndpointDescriptor *pEndpointDescriptor);
+
+    /**
+     * Read from a command passed up from the Server.
+     * @return 1 if command received, 0 for no command, or negative error.
+     */
+    aaudio_result_t readUpCommand(AAudioServiceMessage *commandPtr);
+
+    /**
+     * Non-blocking write.
+     * @return framesWritten or a negative error code.
+     */
+    aaudio_result_t writeDataNow(const void *buffer, int32_t numFrames);
+
+    void getEmptyFramesAvailable(android::WrappingBuffer *wrappingBuffer);
+
+    int32_t getEmptyFramesAvailable();
+
+    void getFullFramesAvailable(android::WrappingBuffer *wrappingBuffer);
+
+    int32_t getFullFramesAvailable();
+
+    void advanceReadIndex(int32_t deltaFrames);
+
+    void advanceWriteIndex(int32_t deltaFrames);
+
+    /**
+     * Set the read index in the downData queue.
+     * This is needed if the reader is not updating the index itself.
+     */
+    void setDataReadCounter(android::fifo_counter_t framesRead);
+
+    android::fifo_counter_t getDataReadCounter();
+
+    void setDataWriteCounter(android::fifo_counter_t framesWritten);
+
+    android::fifo_counter_t getDataWriteCounter();
+
+    /**
+     * The result is not valid until after configure() is called.
+     *
+     * @return true if the output buffer read position is not updated, eg. DMA
+     */
+    bool isFreeRunning() const { return mFreeRunning; }
+
+    int32_t setBufferSizeInFrames(int32_t requestedFrames,
+                                  int32_t *actualFrames);
+    int32_t getBufferSizeInFrames() const;
+
+    int32_t getBufferCapacityInFrames() const;
+
+private:
+    android::FifoBuffer    *mUpCommandQueue;
+    android::FifoBuffer    *mDataQueue;
+    bool                    mFreeRunning;
+    android::fifo_counter_t mDataReadCounter; // only used if free-running
+    android::fifo_counter_t mDataWriteCounter; // only used if free-running
+};
+
+} // namespace aaudio
+
+#endif //ANDROID_AAUDIO_AUDIO_ENDPOINT_H
diff --git a/media/libaaudio/src/client/AudioStreamInternal.cpp b/media/libaaudio/src/client/AudioStreamInternal.cpp
new file mode 100644
index 0000000..3a827f0
--- /dev/null
+++ b/media/libaaudio/src/client/AudioStreamInternal.cpp
@@ -0,0 +1,590 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// This file is used in both client and server processes.
+// This is needed to make sense of the logs more easily.
+#define LOG_TAG (mInService ? "AAudioService" : "AAudio")
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#define ATRACE_TAG ATRACE_TAG_AUDIO
+
+#include <stdint.h>
+#include <assert.h>
+
+#include <binder/IServiceManager.h>
+
+#include <aaudio/AAudio.h>
+#include <utils/String16.h>
+#include <utils/Trace.h>
+
+#include "AudioClock.h"
+#include "AudioEndpointParcelable.h"
+#include "binding/AAudioStreamRequest.h"
+#include "binding/AAudioStreamConfiguration.h"
+#include "binding/IAAudioService.h"
+#include "binding/AAudioServiceMessage.h"
+#include "core/AudioStreamBuilder.h"
+#include "fifo/FifoBuffer.h"
+#include "utility/LinearRamp.h"
+
+#include "AudioStreamInternal.h"
+
+using android::String16;
+using android::Mutex;
+using android::WrappingBuffer;
+
+using namespace aaudio;
+
+#define MIN_TIMEOUT_NANOS        (1000 * AAUDIO_NANOS_PER_MILLISECOND)
+
+// Wait at least this many times longer than the operation should take.
+#define MIN_TIMEOUT_OPERATIONS    4
+
+#define LOG_TIMESTAMPS   0
+
+AudioStreamInternal::AudioStreamInternal(AAudioServiceInterface  &serviceInterface, bool inService)
+        : AudioStream()
+        , mClockModel()
+        , mAudioEndpoint()
+        , mServiceStreamHandle(AAUDIO_HANDLE_INVALID)
+        , mFramesPerBurst(16)
+        , mServiceInterface(serviceInterface)
+        , mInService(inService) {
+}
+
+AudioStreamInternal::~AudioStreamInternal() {
+}
+
+aaudio_result_t AudioStreamInternal::open(const AudioStreamBuilder &builder) {
+
+    aaudio_result_t result = AAUDIO_OK;
+    AAudioStreamRequest request;
+    AAudioStreamConfiguration configuration;
+
+    result = AudioStream::open(builder);
+    if (result < 0) {
+        return result;
+    }
+
+    // We have to do volume scaling. So we prefer FLOAT format.
+    if (getFormat() == AAUDIO_FORMAT_UNSPECIFIED) {
+        setFormat(AAUDIO_FORMAT_PCM_FLOAT);
+    }
+    // Request FLOAT for the shared mixer.
+    request.getConfiguration().setAudioFormat(AAUDIO_FORMAT_PCM_FLOAT);
+
+    // Build the request to send to the server.
+    request.setUserId(getuid());
+    request.setProcessId(getpid());
+    request.setDirection(getDirection());
+    request.setSharingModeMatchRequired(isSharingModeMatchRequired());
+
+    request.getConfiguration().setDeviceId(getDeviceId());
+    request.getConfiguration().setSampleRate(getSampleRate());
+    request.getConfiguration().setSamplesPerFrame(getSamplesPerFrame());
+    request.getConfiguration().setSharingMode(getSharingMode());
+
+    request.getConfiguration().setBufferCapacity(builder.getBufferCapacity());
+
+    mServiceStreamHandle = mServiceInterface.openStream(request, configuration);
+    if (mServiceStreamHandle < 0) {
+        result = mServiceStreamHandle;
+        ALOGE("AudioStreamInternal.open(): openStream() returned %d", result);
+    } else {
+        result = configuration.validate();
+        if (result != AAUDIO_OK) {
+            close();
+            return result;
+        }
+        // Save results of the open.
+        setSampleRate(configuration.getSampleRate());
+        setSamplesPerFrame(configuration.getSamplesPerFrame());
+        setDeviceId(configuration.getDeviceId());
+
+        // Save device format so we can do format conversion and volume scaling together.
+        mDeviceFormat = configuration.getAudioFormat();
+
+        result = mServiceInterface.getStreamDescription(mServiceStreamHandle, mEndPointParcelable);
+        if (result != AAUDIO_OK) {
+            mServiceInterface.closeStream(mServiceStreamHandle);
+            return result;
+        }
+
+        // resolve parcelable into a descriptor
+        result = mEndPointParcelable.resolve(&mEndpointDescriptor);
+        if (result != AAUDIO_OK) {
+            mServiceInterface.closeStream(mServiceStreamHandle);
+            return result;
+        }
+
+        // Configure endpoint based on descriptor.
+        mAudioEndpoint.configure(&mEndpointDescriptor);
+
+        mFramesPerBurst = mEndpointDescriptor.dataQueueDescriptor.framesPerBurst;
+        int32_t capacity = mEndpointDescriptor.dataQueueDescriptor.capacityInFrames;
+
+        // Validate result from server.
+        if (mFramesPerBurst < 16 || mFramesPerBurst > 16 * 1024) {
+            ALOGE("AudioStream::open(): framesPerBurst out of range = %d", mFramesPerBurst);
+            return AAUDIO_ERROR_OUT_OF_RANGE;
+        }
+        if (capacity < mFramesPerBurst || capacity > 32 * 1024) {
+            ALOGE("AudioStream::open(): bufferCapacity out of range = %d", capacity);
+            return AAUDIO_ERROR_OUT_OF_RANGE;
+        }
+
+        mClockModel.setSampleRate(getSampleRate());
+        mClockModel.setFramesPerBurst(mFramesPerBurst);
+
+        if (getDataCallbackProc()) {
+            mCallbackFrames = builder.getFramesPerDataCallback();
+            if (mCallbackFrames > getBufferCapacity() / 2) {
+                ALOGE("AudioStreamInternal.open(): framesPerCallback too large = %d, capacity = %d",
+                      mCallbackFrames, getBufferCapacity());
+                mServiceInterface.closeStream(mServiceStreamHandle);
+                return AAUDIO_ERROR_OUT_OF_RANGE;
+
+            } else if (mCallbackFrames < 0) {
+                ALOGE("AudioStreamInternal.open(): framesPerCallback negative");
+                mServiceInterface.closeStream(mServiceStreamHandle);
+                return AAUDIO_ERROR_OUT_OF_RANGE;
+
+            }
+            if (mCallbackFrames == AAUDIO_UNSPECIFIED) {
+                mCallbackFrames = mFramesPerBurst;
+            }
+
+            int32_t bytesPerFrame = getSamplesPerFrame()
+                                    * AAudioConvert_formatToSizeInBytes(getFormat());
+            int32_t callbackBufferSize = mCallbackFrames * bytesPerFrame;
+            mCallbackBuffer = new uint8_t[callbackBufferSize];
+        }
+
+        setState(AAUDIO_STREAM_STATE_OPEN);
+    }
+    return result;
+}
+
+aaudio_result_t AudioStreamInternal::close() {
+    ALOGD("AudioStreamInternal.close(): mServiceStreamHandle = 0x%08X",
+             mServiceStreamHandle);
+    if (mServiceStreamHandle != AAUDIO_HANDLE_INVALID) {
+        // Don't close a stream while it is running.
+        aaudio_stream_state_t currentState = getState();
+        if (isActive()) {
+            requestStop();
+            aaudio_stream_state_t nextState;
+            int64_t timeoutNanoseconds = MIN_TIMEOUT_NANOS;
+            aaudio_result_t result = waitForStateChange(currentState, &nextState,
+                                                       timeoutNanoseconds);
+            if (result != AAUDIO_OK) {
+                ALOGE("AudioStreamInternal::close() waitForStateChange() returned %d %s",
+                result, AAudio_convertResultToText(result));
+            }
+        }
+        aaudio_handle_t serviceStreamHandle = mServiceStreamHandle;
+        mServiceStreamHandle = AAUDIO_HANDLE_INVALID;
+
+        mServiceInterface.closeStream(serviceStreamHandle);
+        delete[] mCallbackBuffer;
+        mCallbackBuffer = nullptr;
+        return mEndPointParcelable.close();
+    } else {
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+}
+
+
+static void *aaudio_callback_thread_proc(void *context)
+{
+    AudioStreamInternal *stream = (AudioStreamInternal *)context;
+    //LOGD("AudioStreamInternal(): oboe_callback_thread, stream = %p", stream);
+    if (stream != NULL) {
+        return stream->callbackLoop();
+    } else {
+        return NULL;
+    }
+}
+
+aaudio_result_t AudioStreamInternal::requestStart()
+{
+    int64_t startTime;
+    ALOGD("AudioStreamInternal(): start()");
+    if (mServiceStreamHandle == AAUDIO_HANDLE_INVALID) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+
+    startTime = AudioClock::getNanoseconds();
+    mClockModel.start(startTime);
+    setState(AAUDIO_STREAM_STATE_STARTING);
+    aaudio_result_t result = mServiceInterface.startStream(mServiceStreamHandle);;
+
+    if (result == AAUDIO_OK && getDataCallbackProc() != nullptr) {
+        // Launch the callback loop thread.
+        int64_t periodNanos = mCallbackFrames
+                              * AAUDIO_NANOS_PER_SECOND
+                              / getSampleRate();
+        mCallbackEnabled.store(true);
+        result = createThread(periodNanos, aaudio_callback_thread_proc, this);
+    }
+    return result;
+}
+
+int64_t AudioStreamInternal::calculateReasonableTimeout(int32_t framesPerOperation) {
+
+    // Wait for at least a second or some number of callbacks to join the thread.
+    int64_t timeoutNanoseconds = (MIN_TIMEOUT_OPERATIONS
+                                  * framesPerOperation
+                                  * AAUDIO_NANOS_PER_SECOND)
+                                  / getSampleRate();
+    if (timeoutNanoseconds < MIN_TIMEOUT_NANOS) { // arbitrary number of seconds
+        timeoutNanoseconds = MIN_TIMEOUT_NANOS;
+    }
+    return timeoutNanoseconds;
+}
+
+int64_t AudioStreamInternal::calculateReasonableTimeout() {
+    return calculateReasonableTimeout(getFramesPerBurst());
+}
+
+aaudio_result_t AudioStreamInternal::stopCallback()
+{
+    if (isDataCallbackActive()) {
+        mCallbackEnabled.store(false);
+        return joinThread(NULL);
+    } else {
+        return AAUDIO_OK;
+    }
+}
+
+aaudio_result_t AudioStreamInternal::requestPauseInternal()
+{
+    if (mServiceStreamHandle == AAUDIO_HANDLE_INVALID) {
+        ALOGE("AudioStreamInternal(): requestPauseInternal() mServiceStreamHandle invalid = 0x%08X",
+              mServiceStreamHandle);
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+
+    mClockModel.stop(AudioClock::getNanoseconds());
+    setState(AAUDIO_STREAM_STATE_PAUSING);
+    return mServiceInterface.pauseStream(mServiceStreamHandle);
+}
+
+aaudio_result_t AudioStreamInternal::requestPause()
+{
+    aaudio_result_t result = stopCallback();
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+    result = requestPauseInternal();
+    return result;
+}
+
+aaudio_result_t AudioStreamInternal::requestFlush() {
+    if (mServiceStreamHandle == AAUDIO_HANDLE_INVALID) {
+        ALOGE("AudioStreamInternal(): requestFlush() mServiceStreamHandle invalid = 0x%08X",
+              mServiceStreamHandle);
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+
+    setState(AAUDIO_STREAM_STATE_FLUSHING);
+    return mServiceInterface.flushStream(mServiceStreamHandle);
+}
+
+// TODO for Play only
+void AudioStreamInternal::onFlushFromServer() {
+    ALOGD("AudioStreamInternal(): onFlushFromServer()");
+    int64_t readCounter = mAudioEndpoint.getDataReadCounter();
+    int64_t writeCounter = mAudioEndpoint.getDataWriteCounter();
+
+    // Bump offset so caller does not see the retrograde motion in getFramesRead().
+    int64_t framesFlushed = writeCounter - readCounter;
+    mFramesOffsetFromService += framesFlushed;
+
+    // Flush written frames by forcing writeCounter to readCounter.
+    // This is because we cannot move the read counter in the hardware.
+    mAudioEndpoint.setDataWriteCounter(readCounter);
+}
+
+aaudio_result_t AudioStreamInternal::requestStopInternal()
+{
+    if (mServiceStreamHandle == AAUDIO_HANDLE_INVALID) {
+        ALOGE("AudioStreamInternal(): requestStopInternal() mServiceStreamHandle invalid = 0x%08X",
+              mServiceStreamHandle);
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+
+    mClockModel.stop(AudioClock::getNanoseconds());
+    setState(AAUDIO_STREAM_STATE_STOPPING);
+    return mServiceInterface.stopStream(mServiceStreamHandle);
+}
+
+aaudio_result_t AudioStreamInternal::requestStop()
+{
+    aaudio_result_t result = stopCallback();
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+    result = requestStopInternal();
+    return result;
+}
+
+aaudio_result_t AudioStreamInternal::registerThread() {
+    if (mServiceStreamHandle == AAUDIO_HANDLE_INVALID) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    return mServiceInterface.registerAudioThread(mServiceStreamHandle,
+                                              getpid(),
+                                              gettid(),
+                                              getPeriodNanoseconds());
+}
+
+aaudio_result_t AudioStreamInternal::unregisterThread() {
+    if (mServiceStreamHandle == AAUDIO_HANDLE_INVALID) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    return mServiceInterface.unregisterAudioThread(mServiceStreamHandle, getpid(), gettid());
+}
+
+aaudio_result_t AudioStreamInternal::getTimestamp(clockid_t clockId,
+                           int64_t *framePosition,
+                           int64_t *timeNanoseconds) {
+    // TODO Generate in server and pass to client. Return latest.
+    int64_t time = AudioClock::getNanoseconds();
+    *framePosition = mClockModel.convertTimeToPosition(time);
+    // TODO Get a more accurate timestamp from the service. This code just adds a fudge factor.
+    *timeNanoseconds = time + (6 * AAUDIO_NANOS_PER_MILLISECOND);
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamInternal::updateStateWhileWaiting() {
+    if (isDataCallbackActive()) {
+        return AAUDIO_OK; // state is getting updated by the callback thread read/write call
+    }
+    return processCommands();
+}
+
+#if LOG_TIMESTAMPS
+static void AudioStreamInternal_logTimestamp(AAudioServiceMessage &command) {
+    static int64_t oldPosition = 0;
+    static int64_t oldTime = 0;
+    int64_t framePosition = command.timestamp.position;
+    int64_t nanoTime = command.timestamp.timestamp;
+    ALOGD("AudioStreamInternal() timestamp says framePosition = %08lld at nanoTime %lld",
+         (long long) framePosition,
+         (long long) nanoTime);
+    int64_t nanosDelta = nanoTime - oldTime;
+    if (nanosDelta > 0 && oldTime > 0) {
+        int64_t framesDelta = framePosition - oldPosition;
+        int64_t rate = (framesDelta * AAUDIO_NANOS_PER_SECOND) / nanosDelta;
+        ALOGD("AudioStreamInternal() - framesDelta = %08lld", (long long) framesDelta);
+        ALOGD("AudioStreamInternal() - nanosDelta = %08lld", (long long) nanosDelta);
+        ALOGD("AudioStreamInternal() - measured rate = %lld", (long long) rate);
+    }
+    oldPosition = framePosition;
+    oldTime = nanoTime;
+}
+#endif
+
+aaudio_result_t AudioStreamInternal::onTimestampFromServer(AAudioServiceMessage *message) {
+#if LOG_TIMESTAMPS
+    AudioStreamInternal_logTimestamp(*message);
+#endif
+    processTimestamp(message->timestamp.position, message->timestamp.timestamp);
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamInternal::onEventFromServer(AAudioServiceMessage *message) {
+    aaudio_result_t result = AAUDIO_OK;
+    switch (message->event.event) {
+        case AAUDIO_SERVICE_EVENT_STARTED:
+            ALOGD("processCommands() got AAUDIO_SERVICE_EVENT_STARTED");
+            if (getState() == AAUDIO_STREAM_STATE_STARTING) {
+                setState(AAUDIO_STREAM_STATE_STARTED);
+            }
+            break;
+        case AAUDIO_SERVICE_EVENT_PAUSED:
+            ALOGD("processCommands() got AAUDIO_SERVICE_EVENT_PAUSED");
+            if (getState() == AAUDIO_STREAM_STATE_PAUSING) {
+                setState(AAUDIO_STREAM_STATE_PAUSED);
+            }
+            break;
+        case AAUDIO_SERVICE_EVENT_STOPPED:
+            ALOGD("processCommands() got AAUDIO_SERVICE_EVENT_STOPPED");
+            if (getState() == AAUDIO_STREAM_STATE_STOPPING) {
+                setState(AAUDIO_STREAM_STATE_STOPPED);
+            }
+            break;
+        case AAUDIO_SERVICE_EVENT_FLUSHED:
+            ALOGD("processCommands() got AAUDIO_SERVICE_EVENT_FLUSHED");
+            if (getState() == AAUDIO_STREAM_STATE_FLUSHING) {
+                setState(AAUDIO_STREAM_STATE_FLUSHED);
+                onFlushFromServer();
+            }
+            break;
+        case AAUDIO_SERVICE_EVENT_CLOSED:
+            ALOGD("processCommands() got AAUDIO_SERVICE_EVENT_CLOSED");
+            setState(AAUDIO_STREAM_STATE_CLOSED);
+            break;
+        case AAUDIO_SERVICE_EVENT_DISCONNECTED:
+            result = AAUDIO_ERROR_DISCONNECTED;
+            setState(AAUDIO_STREAM_STATE_DISCONNECTED);
+            ALOGW("WARNING - processCommands() AAUDIO_SERVICE_EVENT_DISCONNECTED");
+            break;
+        case AAUDIO_SERVICE_EVENT_VOLUME:
+            mVolumeRamp.setTarget((float) message->event.dataDouble);
+            ALOGD("processCommands() AAUDIO_SERVICE_EVENT_VOLUME %lf",
+                     message->event.dataDouble);
+            break;
+        default:
+            ALOGW("WARNING - processCommands() Unrecognized event = %d",
+                 (int) message->event.event);
+            break;
+    }
+    return result;
+}
+
+// Process all the commands coming from the server.
+aaudio_result_t AudioStreamInternal::processCommands() {
+    aaudio_result_t result = AAUDIO_OK;
+
+    while (result == AAUDIO_OK) {
+        //ALOGD("AudioStreamInternal::processCommands() - looping, %d", result);
+        AAudioServiceMessage message;
+        if (mAudioEndpoint.readUpCommand(&message) != 1) {
+            break; // no command this time, no problem
+        }
+        switch (message.what) {
+        case AAudioServiceMessage::code::TIMESTAMP:
+            result = onTimestampFromServer(&message);
+            break;
+
+        case AAudioServiceMessage::code::EVENT:
+            result = onEventFromServer(&message);
+            break;
+
+        default:
+            ALOGE("WARNING - AudioStreamInternal::processCommands() Unrecognized what = %d",
+                 (int) message.what);
+            result = AAUDIO_ERROR_INTERNAL;
+            break;
+        }
+    }
+    return result;
+}
+
+// Read or write the data, block if needed and timeoutMillis > 0
+aaudio_result_t AudioStreamInternal::processData(void *buffer, int32_t numFrames,
+                                                 int64_t timeoutNanoseconds)
+{
+    const char * traceName = (mInService) ? "aaWrtS" : "aaWrtC";
+    ATRACE_BEGIN(traceName);
+    aaudio_result_t result = AAUDIO_OK;
+    int32_t loopCount = 0;
+    uint8_t* audioData = (uint8_t*)buffer;
+    int64_t currentTimeNanos = AudioClock::getNanoseconds();
+    int64_t deadlineNanos = currentTimeNanos + timeoutNanoseconds;
+    int32_t framesLeft = numFrames;
+
+    int32_t fullFrames = mAudioEndpoint.getFullFramesAvailable();
+    if (ATRACE_ENABLED()) {
+        const char * traceName = (mInService) ? "aaFullS" : "aaFullC";
+        ATRACE_INT(traceName, fullFrames);
+    }
+
+    // Loop until all the data has been processed or until a timeout occurs.
+    while (framesLeft > 0) {
+        // The call to processDataNow() will not block. It will just read as much as it can.
+        int64_t wakeTimeNanos = 0;
+        aaudio_result_t framesProcessed = processDataNow(audioData, framesLeft,
+                                                  currentTimeNanos, &wakeTimeNanos);
+        if (framesProcessed < 0) {
+            ALOGE("AudioStreamInternal::processData() loop: framesProcessed = %d", framesProcessed);
+            result = framesProcessed;
+            break;
+        }
+        framesLeft -= (int32_t) framesProcessed;
+        audioData += framesProcessed * getBytesPerFrame();
+
+        // Should we block?
+        if (timeoutNanoseconds == 0) {
+            break; // don't block
+        } else if (framesLeft > 0) {
+            // clip the wake time to something reasonable
+            if (wakeTimeNanos < currentTimeNanos) {
+                wakeTimeNanos = currentTimeNanos;
+            }
+            if (wakeTimeNanos > deadlineNanos) {
+                // If we time out, just return the framesWritten so far.
+                // TODO remove after we fix the deadline bug
+                ALOGE("AudioStreamInternal::processData(): timed out after %lld nanos",
+                      (long long) timeoutNanoseconds);
+                ALOGE("AudioStreamInternal::processData(): wakeTime = %lld, deadline = %lld nanos",
+                      (long long) wakeTimeNanos, (long long) deadlineNanos);
+                ALOGE("AudioStreamInternal::processData(): past deadline by %d micros",
+                      (int)((wakeTimeNanos - deadlineNanos) / AAUDIO_NANOS_PER_MICROSECOND));
+                break;
+            }
+
+            int64_t sleepForNanos = wakeTimeNanos - currentTimeNanos;
+            AudioClock::sleepForNanos(sleepForNanos);
+            currentTimeNanos = AudioClock::getNanoseconds();
+        }
+    }
+
+    // return error or framesProcessed
+    (void) loopCount;
+    ATRACE_END();
+    return (result < 0) ? result : numFrames - framesLeft;
+}
+
+void AudioStreamInternal::processTimestamp(uint64_t position, int64_t time) {
+    mClockModel.processTimestamp(position, time);
+}
+
+aaudio_result_t AudioStreamInternal::setBufferSize(int32_t requestedFrames) {
+    int32_t actualFrames = 0;
+    // Round to the next highest burst size.
+    if (getFramesPerBurst() > 0) {
+        int32_t numBursts = (requestedFrames + getFramesPerBurst() - 1) / getFramesPerBurst();
+        requestedFrames = numBursts * getFramesPerBurst();
+    }
+
+    aaudio_result_t result = mAudioEndpoint.setBufferSizeInFrames(requestedFrames, &actualFrames);
+    ALOGD("AudioStreamInternal::setBufferSize() req = %d => %d", requestedFrames, actualFrames);
+    if (result < 0) {
+        return result;
+    } else {
+        return (aaudio_result_t) actualFrames;
+    }
+}
+
+int32_t AudioStreamInternal::getBufferSize() const {
+    return mAudioEndpoint.getBufferSizeInFrames();
+}
+
+int32_t AudioStreamInternal::getBufferCapacity() const {
+    return mAudioEndpoint.getBufferCapacityInFrames();
+}
+
+int32_t AudioStreamInternal::getFramesPerBurst() const {
+    return mEndpointDescriptor.dataQueueDescriptor.framesPerBurst;
+}
+
+aaudio_result_t AudioStreamInternal::joinThread(void** returnArg) {
+    return AudioStream::joinThread(returnArg, calculateReasonableTimeout(getFramesPerBurst()));
+}
diff --git a/media/libaaudio/src/client/AudioStreamInternal.h b/media/libaaudio/src/client/AudioStreamInternal.h
new file mode 100644
index 0000000..a11f309
--- /dev/null
+++ b/media/libaaudio/src/client/AudioStreamInternal.h
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_H
+#define ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_H
+
+#include <stdint.h>
+#include <aaudio/AAudio.h>
+
+#include "binding/IAAudioService.h"
+#include "binding/AudioEndpointParcelable.h"
+#include "binding/AAudioServiceInterface.h"
+#include "client/IsochronousClockModel.h"
+#include "client/AudioEndpoint.h"
+#include "core/AudioStream.h"
+#include "utility/LinearRamp.h"
+
+using android::sp;
+using android::IAAudioService;
+
+namespace aaudio {
+
+// A stream that talks to the AAudioService or directly to a HAL.
+class AudioStreamInternal : public AudioStream {
+
+public:
+    AudioStreamInternal(AAudioServiceInterface  &serviceInterface, bool inService);
+    virtual ~AudioStreamInternal();
+
+    // =========== Begin ABSTRACT methods ===========================
+    aaudio_result_t requestStart() override;
+
+    aaudio_result_t requestPause() override;
+
+    aaudio_result_t requestFlush() override;
+
+    aaudio_result_t requestStop() override;
+
+    aaudio_result_t getTimestamp(clockid_t clockId,
+                                       int64_t *framePosition,
+                                       int64_t *timeNanoseconds) override;
+
+    virtual aaudio_result_t updateStateWhileWaiting() override;
+    // =========== End ABSTRACT methods ===========================
+
+    aaudio_result_t open(const AudioStreamBuilder &builder) override;
+
+    aaudio_result_t close() override;
+
+    aaudio_result_t setBufferSize(int32_t requestedFrames) override;
+
+    int32_t getBufferSize() const override;
+
+    int32_t getBufferCapacity() const override;
+
+    int32_t getFramesPerBurst() const override;
+
+    int32_t getXRunCount() const override {
+        return mXRunCount;
+    }
+
+    aaudio_result_t registerThread() override;
+
+    aaudio_result_t unregisterThread() override;
+
+    aaudio_result_t joinThread(void** returnArg);
+
+    // Called internally from 'C'
+    virtual void *callbackLoop() = 0;
+
+
+    bool isMMap() override {
+        return true;
+    }
+
+    // Calculate timeout based on framesPerBurst
+    int64_t calculateReasonableTimeout();
+
+protected:
+
+    aaudio_result_t processData(void *buffer,
+                         int32_t numFrames,
+                         int64_t timeoutNanoseconds);
+
+/**
+ * Low level data processing that will not block. It will just read or write as much as it can.
+ *
+ * It passed back a recommended time to wake up if wakeTimePtr is not NULL.
+ *
+ * @return the number of frames processed or a negative error code.
+ */
+    virtual aaudio_result_t processDataNow(void *buffer,
+                            int32_t numFrames,
+                            int64_t currentTimeNanos,
+                            int64_t *wakeTimePtr) = 0;
+
+    aaudio_result_t processCommands();
+
+    aaudio_result_t requestPauseInternal();
+    aaudio_result_t requestStopInternal();
+
+    aaudio_result_t stopCallback();
+
+
+    void onFlushFromServer();
+
+    aaudio_result_t onEventFromServer(AAudioServiceMessage *message);
+
+    aaudio_result_t onTimestampFromServer(AAudioServiceMessage *message);
+
+    // Calculate timeout for an operation involving framesPerOperation.
+    int64_t calculateReasonableTimeout(int32_t framesPerOperation);
+
+    aaudio_format_t          mDeviceFormat = AAUDIO_FORMAT_UNSPECIFIED;
+
+    IsochronousClockModel    mClockModel;      // timing model for chasing the HAL
+
+    AudioEndpoint            mAudioEndpoint;   // source for reads or sink for writes
+    aaudio_handle_t          mServiceStreamHandle; // opaque handle returned from service
+
+    int32_t                  mFramesPerBurst;     // frames per HAL transfer
+    int32_t                  mXRunCount = 0;      // how many underrun events?
+
+    LinearRamp               mVolumeRamp;
+
+    // Offset from underlying frame position.
+    int64_t                  mFramesOffsetFromService = 0; // offset for timestamps
+
+    uint8_t                 *mCallbackBuffer = nullptr;
+    int32_t                  mCallbackFrames = 0;
+
+private:
+    /*
+     * Asynchronous write with data conversion.
+     * @param buffer
+     * @param numFrames
+     * @return fdrames written or negative error
+     */
+    aaudio_result_t writeNowWithConversion(const void *buffer,
+                                     int32_t numFrames);
+
+    // Adjust timing model based on timestamp from service.
+    void processTimestamp(uint64_t position, int64_t time);
+
+    AudioEndpointParcelable  mEndPointParcelable; // description of the buffers filled by service
+    EndpointDescriptor       mEndpointDescriptor; // buffer description with resolved addresses
+    AAudioServiceInterface  &mServiceInterface;   // abstract interface to the service
+
+    // The service uses this for SHARED mode.
+    bool                     mInService = false;  // Is this running in the client or the service?
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_H
diff --git a/media/libaaudio/src/client/AudioStreamInternalCapture.cpp b/media/libaaudio/src/client/AudioStreamInternalCapture.cpp
new file mode 100644
index 0000000..93693bd
--- /dev/null
+++ b/media/libaaudio/src/client/AudioStreamInternalCapture.cpp
@@ -0,0 +1,234 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <aaudio/AAudio.h>
+
+#include "client/AudioStreamInternalCapture.h"
+#include "utility/AudioClock.h"
+
+using android::WrappingBuffer;
+
+using namespace aaudio;
+
+AudioStreamInternalCapture::AudioStreamInternalCapture(AAudioServiceInterface  &serviceInterface,
+                                                 bool inService)
+    : AudioStreamInternal(serviceInterface, inService) {
+
+}
+
+AudioStreamInternalCapture::~AudioStreamInternalCapture() {}
+
+
+// Write the data, block if needed and timeoutMillis > 0
+aaudio_result_t AudioStreamInternalCapture::read(void *buffer, int32_t numFrames,
+                                               int64_t timeoutNanoseconds)
+{
+    return processData(buffer, numFrames, timeoutNanoseconds);
+}
+
+// Read as much data as we can without blocking.
+aaudio_result_t AudioStreamInternalCapture::processDataNow(void *buffer, int32_t numFrames,
+                                                  int64_t currentNanoTime, int64_t *wakeTimePtr) {
+    aaudio_result_t result = processCommands();
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    if (mAudioEndpoint.isFreeRunning()) {
+        //ALOGD("AudioStreamInternalCapture::processDataNow() - update remote counter");
+        // Update data queue based on the timing model.
+        int64_t estimatedRemoteCounter = mClockModel.convertTimeToPosition(currentNanoTime);
+        // TODO refactor, maybe use setRemoteCounter()
+        mAudioEndpoint.setDataWriteCounter(estimatedRemoteCounter);
+    }
+
+    // If the write index passed the read index then consider it an overrun.
+    if (mAudioEndpoint.getEmptyFramesAvailable() < 0) {
+        mXRunCount++;
+    }
+
+    // Read some data from the buffer.
+    //ALOGD("AudioStreamInternalCapture::processDataNow() - readNowWithConversion(%d)", numFrames);
+    int32_t framesProcessed = readNowWithConversion(buffer, numFrames);
+    //ALOGD("AudioStreamInternalCapture::processDataNow() - tried to read %d frames, read %d",
+    //    numFrames, framesProcessed);
+
+    // Calculate an ideal time to wake up.
+    if (wakeTimePtr != nullptr && framesProcessed >= 0) {
+        // By default wake up a few milliseconds from now.  // TODO review
+        int64_t wakeTime = currentNanoTime + (1 * AAUDIO_NANOS_PER_MILLISECOND);
+        aaudio_stream_state_t state = getState();
+        //ALOGD("AudioStreamInternalCapture::processDataNow() - wakeTime based on %s",
+        //      AAudio_convertStreamStateToText(state));
+        switch (state) {
+            case AAUDIO_STREAM_STATE_OPEN:
+            case AAUDIO_STREAM_STATE_STARTING:
+                break;
+            case AAUDIO_STREAM_STATE_STARTED:   // When do we expect the next read burst to occur?
+            {
+                uint32_t burstSize = mFramesPerBurst;
+                if (burstSize < 32) {
+                    burstSize = 32; // TODO review
+                }
+
+                uint64_t nextReadPosition = mAudioEndpoint.getDataWriteCounter() + burstSize;
+                wakeTime = mClockModel.convertPositionToTime(nextReadPosition);
+            }
+                break;
+            default:
+                break;
+        }
+        *wakeTimePtr = wakeTime;
+
+    }
+//    ALOGD("AudioStreamInternalCapture::readNow finished: now = %llu, read# = %llu, wrote# = %llu",
+//         (unsigned long long)currentNanoTime,
+//         (unsigned long long)mAudioEndpoint.getDataReadCounter(),
+//         (unsigned long long)mAudioEndpoint.getDownDataWriteCounter());
+    return framesProcessed;
+}
+
+aaudio_result_t AudioStreamInternalCapture::readNowWithConversion(void *buffer,
+                                                                int32_t numFrames) {
+    // ALOGD("AudioStreamInternalCapture::readNowWithConversion(%p, %d)",
+    //              buffer, numFrames);
+    WrappingBuffer wrappingBuffer;
+    uint8_t *destination = (uint8_t *) buffer;
+    int32_t framesLeft = numFrames;
+
+    mAudioEndpoint.getFullFramesAvailable(&wrappingBuffer);
+
+    // Read data in one or two parts.
+    for (int partIndex = 0; framesLeft > 0 && partIndex < WrappingBuffer::SIZE; partIndex++) {
+        int32_t framesToProcess = framesLeft;
+        int32_t framesAvailable = wrappingBuffer.numFrames[partIndex];
+        if (framesAvailable <= 0) break;
+
+        if (framesToProcess > framesAvailable) {
+            framesToProcess = framesAvailable;
+        }
+
+        int32_t numBytes = getBytesPerFrame() * framesToProcess;
+        int32_t numSamples = framesToProcess * getSamplesPerFrame();
+
+        // TODO factor this out into a utility function
+        if (mDeviceFormat == getFormat()) {
+            memcpy(destination, wrappingBuffer.data[partIndex], numBytes);
+        } else if (mDeviceFormat == AAUDIO_FORMAT_PCM_I16
+                   && getFormat() == AAUDIO_FORMAT_PCM_FLOAT) {
+            AAudioConvert_pcm16ToFloat(
+                    (const int16_t *) wrappingBuffer.data[partIndex],
+                    (float *) destination,
+                    numSamples,
+                    1.0f);
+        } else if (mDeviceFormat == AAUDIO_FORMAT_PCM_FLOAT
+                   && getFormat() == AAUDIO_FORMAT_PCM_I16) {
+            AAudioConvert_floatToPcm16(
+                    (const float *) wrappingBuffer.data[partIndex],
+                    (int16_t *) destination,
+                    numSamples,
+                    1.0f);
+        } else {
+            ALOGE("Format conversion not supported!");
+            return AAUDIO_ERROR_INVALID_FORMAT;
+        }
+        destination += numBytes;
+        framesLeft -= framesToProcess;
+    }
+
+    int32_t framesProcessed = numFrames - framesLeft;
+    mAudioEndpoint.advanceReadIndex(framesProcessed);
+    incrementFramesRead(framesProcessed);
+
+    //ALOGD("AudioStreamInternalCapture::readNowWithConversion() returns %d", framesProcessed);
+    return framesProcessed;
+}
+
+int64_t AudioStreamInternalCapture::getFramesWritten()
+{
+    int64_t frames =
+            mClockModel.convertTimeToPosition(AudioClock::getNanoseconds())
+            + mFramesOffsetFromService;
+    // Prevent retrograde motion.
+    if (frames < mLastFramesWritten) {
+        frames = mLastFramesWritten;
+    } else {
+        mLastFramesWritten = frames;
+    }
+    //ALOGD("AudioStreamInternalCapture::getFramesWritten() returns %lld", (long long)frames);
+    return frames;
+}
+
+int64_t AudioStreamInternalCapture::getFramesRead()
+{
+    int64_t frames = mAudioEndpoint.getDataWriteCounter()
+                               + mFramesOffsetFromService;
+    //ALOGD("AudioStreamInternalCapture::getFramesRead() returns %lld", (long long)frames);
+    return frames;
+}
+
+// Read data from the stream and pass it to the callback for processing.
+void *AudioStreamInternalCapture::callbackLoop() {
+    aaudio_result_t result = AAUDIO_OK;
+    aaudio_data_callback_result_t callbackResult = AAUDIO_CALLBACK_RESULT_CONTINUE;
+    AAudioStream_dataCallback appCallback = getDataCallbackProc();
+    if (appCallback == nullptr) return NULL;
+
+    // result might be a frame count
+    while (mCallbackEnabled.load() && isActive() && (result >= 0)) {
+
+        // Read audio data from stream.
+        int64_t timeoutNanos = calculateReasonableTimeout(mCallbackFrames);
+
+        // This is a BLOCKING READ!
+        result = read(mCallbackBuffer, mCallbackFrames, timeoutNanos);
+        if ((result != mCallbackFrames)) {
+            ALOGE("AudioStreamInternalCapture(): callbackLoop: read() returned %d", result);
+            if (result >= 0) {
+                // Only read some of the frames requested. Must have timed out.
+                result = AAUDIO_ERROR_TIMEOUT;
+            }
+            AAudioStream_errorCallback errorCallback = getErrorCallbackProc();
+            if (errorCallback != nullptr) {
+                (*errorCallback)(
+                        (AAudioStream *) this,
+                        getErrorCallbackUserData(),
+                        result);
+            }
+            break;
+        }
+
+        // Call application using the AAudio callback interface.
+        callbackResult = (*appCallback)(
+                (AAudioStream *) this,
+                getDataCallbackUserData(),
+                mCallbackBuffer,
+                mCallbackFrames);
+
+        if (callbackResult == AAUDIO_CALLBACK_RESULT_STOP) {
+            ALOGD("AudioStreamInternalCapture(): callback returned AAUDIO_CALLBACK_RESULT_STOP");
+            break;
+        }
+    }
+
+    ALOGD("AudioStreamInternalCapture(): callbackLoop() exiting, result = %d, isActive() = %d",
+          result, (int) isActive());
+    return NULL;
+}
diff --git a/media/libaaudio/src/client/AudioStreamInternalCapture.h b/media/libaaudio/src/client/AudioStreamInternalCapture.h
new file mode 100644
index 0000000..17f37e8
--- /dev/null
+++ b/media/libaaudio/src/client/AudioStreamInternalCapture.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_CAPTURE_H
+#define ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_CAPTURE_H
+
+#include <stdint.h>
+#include <aaudio/AAudio.h>
+
+#include "binding/AAudioServiceInterface.h"
+#include "client/AudioStreamInternal.h"
+
+using android::sp;
+using android::IAAudioService;
+
+namespace aaudio {
+
+class AudioStreamInternalCapture : public AudioStreamInternal {
+public:
+    AudioStreamInternalCapture(AAudioServiceInterface  &serviceInterface, bool inService = false);
+    virtual ~AudioStreamInternalCapture();
+
+    aaudio_result_t read(void *buffer,
+                         int32_t numFrames,
+                         int64_t timeoutNanoseconds) override;
+
+    int64_t getFramesRead() override;
+    int64_t getFramesWritten() override;
+
+    void *callbackLoop() override;
+
+    aaudio_direction_t getDirection() const override {
+        return AAUDIO_DIRECTION_INPUT;
+    }
+protected:
+
+/**
+ * Low level data processing that will not block. It will just read or write as much as it can.
+ *
+ * It passes back a recommended time to wake up if wakeTimePtr is not NULL.
+ *
+ * @return the number of frames processed or a negative error code.
+ */
+    aaudio_result_t processDataNow(void *buffer,
+                                   int32_t numFrames,
+                                   int64_t currentTimeNanos,
+                                   int64_t *wakeTimePtr) override;
+
+private:
+    /*
+     * Asynchronous read with data conversion.
+     * @param buffer
+     * @param numFrames
+     * @return frames written or negative error
+     */
+    aaudio_result_t readNowWithConversion(void *buffer, int32_t numFrames);
+
+    int64_t       mLastFramesWritten = 0; // used to prevent retrograde motion
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_CAPTURE_H
diff --git a/media/libaaudio/src/client/AudioStreamInternalPlay.cpp b/media/libaaudio/src/client/AudioStreamInternalPlay.cpp
new file mode 100644
index 0000000..fc9766f
--- /dev/null
+++ b/media/libaaudio/src/client/AudioStreamInternalPlay.cpp
@@ -0,0 +1,282 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include "client/AudioStreamInternalPlay.h"
+#include "utility/AudioClock.h"
+
+using android::WrappingBuffer;
+
+using namespace aaudio;
+
+AudioStreamInternalPlay::AudioStreamInternalPlay(AAudioServiceInterface  &serviceInterface,
+                                                       bool inService)
+        : AudioStreamInternal(serviceInterface, inService) {
+
+}
+
+AudioStreamInternalPlay::~AudioStreamInternalPlay() {}
+
+
+// Write the data, block if needed and timeoutMillis > 0
+aaudio_result_t AudioStreamInternalPlay::write(const void *buffer, int32_t numFrames,
+                                           int64_t timeoutNanoseconds)
+
+{
+    return processData((void *)buffer, numFrames, timeoutNanoseconds);
+}
+
+// Write as much data as we can without blocking.
+aaudio_result_t AudioStreamInternalPlay::processDataNow(void *buffer, int32_t numFrames,
+                                              int64_t currentNanoTime, int64_t *wakeTimePtr) {
+    aaudio_result_t result = processCommands();
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    if (mAudioEndpoint.isFreeRunning()) {
+        //ALOGD("AudioStreamInternal::processDataNow() - update read counter");
+        // Update data queue based on the timing model.
+        int64_t estimatedReadCounter = mClockModel.convertTimeToPosition(currentNanoTime);
+        mAudioEndpoint.setDataReadCounter(estimatedReadCounter);
+    }
+    // TODO else query from endpoint cuz set by actual reader, maybe
+
+    // If the read index passed the write index then consider it an underrun.
+    if (mAudioEndpoint.getFullFramesAvailable() < 0) {
+        mXRunCount++;
+    }
+
+    // Write some data to the buffer.
+    //ALOGD("AudioStreamInternal::processDataNow() - writeNowWithConversion(%d)", numFrames);
+    int32_t framesWritten = writeNowWithConversion(buffer, numFrames);
+    //ALOGD("AudioStreamInternal::processDataNow() - tried to write %d frames, wrote %d",
+    //    numFrames, framesWritten);
+
+    // Calculate an ideal time to wake up.
+    if (wakeTimePtr != nullptr && framesWritten >= 0) {
+        // By default wake up a few milliseconds from now.  // TODO review
+        int64_t wakeTime = currentNanoTime + (1 * AAUDIO_NANOS_PER_MILLISECOND);
+        aaudio_stream_state_t state = getState();
+        //ALOGD("AudioStreamInternal::processDataNow() - wakeTime based on %s",
+        //      AAudio_convertStreamStateToText(state));
+        switch (state) {
+            case AAUDIO_STREAM_STATE_OPEN:
+            case AAUDIO_STREAM_STATE_STARTING:
+                if (framesWritten != 0) {
+                    // Don't wait to write more data. Just prime the buffer.
+                    wakeTime = currentNanoTime;
+                }
+                break;
+            case AAUDIO_STREAM_STATE_STARTED:   // When do we expect the next read burst to occur?
+            {
+                uint32_t burstSize = mFramesPerBurst;
+                if (burstSize < 32) {
+                    burstSize = 32; // TODO review
+                }
+
+                uint64_t nextReadPosition = mAudioEndpoint.getDataReadCounter() + burstSize;
+                wakeTime = mClockModel.convertPositionToTime(nextReadPosition);
+            }
+                break;
+            default:
+                break;
+        }
+        *wakeTimePtr = wakeTime;
+
+    }
+//    ALOGD("AudioStreamInternal::processDataNow finished: now = %llu, read# = %llu, wrote# = %llu",
+//         (unsigned long long)currentNanoTime,
+//         (unsigned long long)mAudioEndpoint.getDataReadCounter(),
+//         (unsigned long long)mAudioEndpoint.getDownDataWriteCounter());
+    return framesWritten;
+}
+
+
+aaudio_result_t AudioStreamInternalPlay::writeNowWithConversion(const void *buffer,
+                                                            int32_t numFrames) {
+    // ALOGD("AudioStreamInternal::writeNowWithConversion(%p, %d)",
+    //              buffer, numFrames);
+    WrappingBuffer wrappingBuffer;
+    uint8_t *source = (uint8_t *) buffer;
+    int32_t framesLeft = numFrames;
+
+    mAudioEndpoint.getEmptyFramesAvailable(&wrappingBuffer);
+
+    // Read data in one or two parts.
+    int partIndex = 0;
+    while (framesLeft > 0 && partIndex < WrappingBuffer::SIZE) {
+        int32_t framesToWrite = framesLeft;
+        int32_t framesAvailable = wrappingBuffer.numFrames[partIndex];
+        if (framesAvailable > 0) {
+            if (framesToWrite > framesAvailable) {
+                framesToWrite = framesAvailable;
+            }
+            int32_t numBytes = getBytesPerFrame() * framesToWrite;
+            int32_t numSamples = framesToWrite * getSamplesPerFrame();
+            // Data conversion.
+            float levelFrom;
+            float levelTo;
+            bool ramping = mVolumeRamp.nextSegment(framesToWrite * getSamplesPerFrame(),
+                                                   &levelFrom, &levelTo);
+            // The formats are validated when the stream is opened so we do not have to
+            // check for illegal combinations here.
+            // TODO factor this out into a utility function
+            if (getFormat() == AAUDIO_FORMAT_PCM_FLOAT) {
+                if (mDeviceFormat == AAUDIO_FORMAT_PCM_FLOAT) {
+                    AAudio_linearRamp(
+                            (const float *) source,
+                            (float *) wrappingBuffer.data[partIndex],
+                            framesToWrite,
+                            getSamplesPerFrame(),
+                            levelFrom,
+                            levelTo);
+                } else if (mDeviceFormat == AAUDIO_FORMAT_PCM_I16) {
+                    if (ramping) {
+                        AAudioConvert_floatToPcm16(
+                                (const float *) source,
+                                (int16_t *) wrappingBuffer.data[partIndex],
+                                framesToWrite,
+                                getSamplesPerFrame(),
+                                levelFrom,
+                                levelTo);
+                    } else {
+                        AAudioConvert_floatToPcm16(
+                                (const float *) source,
+                                (int16_t *) wrappingBuffer.data[partIndex],
+                                numSamples,
+                                levelTo);
+                    }
+                }
+            } else if (getFormat() == AAUDIO_FORMAT_PCM_I16) {
+                if (mDeviceFormat == AAUDIO_FORMAT_PCM_FLOAT) {
+                    if (ramping) {
+                        AAudioConvert_pcm16ToFloat(
+                                (const int16_t *) source,
+                                (float *) wrappingBuffer.data[partIndex],
+                                framesToWrite,
+                                getSamplesPerFrame(),
+                                levelFrom,
+                                levelTo);
+                    } else {
+                        AAudioConvert_pcm16ToFloat(
+                                (const int16_t *) source,
+                                (float *) wrappingBuffer.data[partIndex],
+                                numSamples,
+                                levelTo);
+                    }
+                } else if (mDeviceFormat == AAUDIO_FORMAT_PCM_I16) {
+                    AAudio_linearRamp(
+                            (const int16_t *) source,
+                            (int16_t *) wrappingBuffer.data[partIndex],
+                            framesToWrite,
+                            getSamplesPerFrame(),
+                            levelFrom,
+                            levelTo);
+                }
+            }
+            source += numBytes;
+            framesLeft -= framesToWrite;
+        } else {
+            break;
+        }
+        partIndex++;
+    }
+    int32_t framesWritten = numFrames - framesLeft;
+    mAudioEndpoint.advanceWriteIndex(framesWritten);
+
+    if (framesWritten > 0) {
+        incrementFramesWritten(framesWritten);
+    }
+    // ALOGD("AudioStreamInternal::writeNowWithConversion() returns %d", framesWritten);
+    return framesWritten;
+}
+
+
+int64_t AudioStreamInternalPlay::getFramesRead()
+{
+    int64_t framesRead =
+            mClockModel.convertTimeToPosition(AudioClock::getNanoseconds())
+            + mFramesOffsetFromService;
+    // Prevent retrograde motion.
+    if (framesRead < mLastFramesRead) {
+        framesRead = mLastFramesRead;
+    } else {
+        mLastFramesRead = framesRead;
+    }
+    ALOGD("AudioStreamInternal::getFramesRead() returns %lld", (long long)framesRead);
+    return framesRead;
+}
+
+int64_t AudioStreamInternalPlay::getFramesWritten()
+{
+    int64_t getFramesWritten = mAudioEndpoint.getDataWriteCounter()
+                               + mFramesOffsetFromService;
+    ALOGD("AudioStreamInternal::getFramesWritten() returns %lld", (long long)getFramesWritten);
+    return getFramesWritten;
+}
+
+
+// Render audio in the application callback and then write the data to the stream.
+void *AudioStreamInternalPlay::callbackLoop() {
+    aaudio_result_t result = AAUDIO_OK;
+    aaudio_data_callback_result_t callbackResult = AAUDIO_CALLBACK_RESULT_CONTINUE;
+    AAudioStream_dataCallback appCallback = getDataCallbackProc();
+    if (appCallback == nullptr) return NULL;
+
+    // result might be a frame count
+    while (mCallbackEnabled.load() && isActive() && (result >= 0)) {
+        // Call application using the AAudio callback interface.
+        callbackResult = (*appCallback)(
+                (AAudioStream *) this,
+                getDataCallbackUserData(),
+                mCallbackBuffer,
+                mCallbackFrames);
+
+        if (callbackResult == AAUDIO_CALLBACK_RESULT_CONTINUE) {
+            // Write audio data to stream.
+            int64_t timeoutNanos = calculateReasonableTimeout(mCallbackFrames);
+
+            // This is a BLOCKING WRITE!
+            result = write(mCallbackBuffer, mCallbackFrames, timeoutNanos);
+            if ((result != mCallbackFrames)) {
+                ALOGE("AudioStreamInternalPlay(): callbackLoop: write() returned %d", result);
+                if (result >= 0) {
+                    // Only wrote some of the frames requested. Must have timed out.
+                    result = AAUDIO_ERROR_TIMEOUT;
+                }
+                AAudioStream_errorCallback errorCallback = getErrorCallbackProc();
+                if (errorCallback != nullptr) {
+                    (*errorCallback)(
+                            (AAudioStream *) this,
+                            getErrorCallbackUserData(),
+                            result);
+                }
+                break;
+            }
+        } else if (callbackResult == AAUDIO_CALLBACK_RESULT_STOP) {
+            ALOGD("AudioStreamInternalPlay(): callback returned AAUDIO_CALLBACK_RESULT_STOP");
+            break;
+        }
+    }
+
+    ALOGD("AudioStreamInternalPlay(): callbackLoop() exiting, result = %d, isActive() = %d",
+          result, (int) isActive());
+    return NULL;
+}
diff --git a/media/libaaudio/src/client/AudioStreamInternalPlay.h b/media/libaaudio/src/client/AudioStreamInternalPlay.h
new file mode 100644
index 0000000..b043f67
--- /dev/null
+++ b/media/libaaudio/src/client/AudioStreamInternalPlay.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_PLAY_H
+#define ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_PLAY_H
+
+#include <stdint.h>
+#include <aaudio/AAudio.h>
+
+#include "binding/AAudioServiceInterface.h"
+#include "client/AudioStreamInternal.h"
+
+using android::sp;
+using android::IAAudioService;
+
+namespace aaudio {
+
+class AudioStreamInternalPlay : public AudioStreamInternal {
+public:
+    AudioStreamInternalPlay(AAudioServiceInterface  &serviceInterface, bool inService = false);
+    virtual ~AudioStreamInternalPlay();
+
+    aaudio_result_t write(const void *buffer,
+                          int32_t numFrames,
+                          int64_t timeoutNanoseconds) override;
+
+    int64_t getFramesRead() override;
+    int64_t getFramesWritten() override;
+
+    void *callbackLoop() override;
+
+    aaudio_direction_t getDirection() const override {
+        return AAUDIO_DIRECTION_OUTPUT;
+    }
+
+protected:
+/**
+ * Low level write that will not block. It will just write as much as it can.
+ *
+ * It passed back a recommended time to wake up if wakeTimePtr is not NULL.
+ *
+ * @return the number of frames written or a negative error code.
+ */
+    aaudio_result_t processDataNow(void *buffer,
+                             int32_t numFrames,
+                             int64_t currentTimeNanos,
+                             int64_t *wakeTimePtr) override;
+private:
+    /*
+     * Asynchronous write with data conversion.
+     * @param buffer
+     * @param numFrames
+     * @return fdrames written or negative error
+     */
+    aaudio_result_t writeNowWithConversion(const void *buffer,
+                                           int32_t numFrames);
+
+    int64_t                  mLastFramesRead = 0; // used to prevent retrograde motion
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_AAUDIO_AUDIO_STREAM_INTERNAL_PLAY_H
diff --git a/media/libaaudio/src/client/IsochronousClockModel.cpp b/media/libaaudio/src/client/IsochronousClockModel.cpp
new file mode 100644
index 0000000..1de33bb
--- /dev/null
+++ b/media/libaaudio/src/client/IsochronousClockModel.cpp
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+
+#include "utility/AudioClock.h"
+#include "IsochronousClockModel.h"
+
+#define MIN_LATENESS_NANOS (10 * AAUDIO_NANOS_PER_MICROSECOND)
+
+using namespace android;
+using namespace aaudio;
+
+IsochronousClockModel::IsochronousClockModel()
+        : mMarkerFramePosition(0)
+        , mMarkerNanoTime(0)
+        , mSampleRate(48000)
+        , mFramesPerBurst(64)
+        , mMaxLatenessInNanos(0)
+        , mState(STATE_STOPPED)
+{
+}
+
+IsochronousClockModel::~IsochronousClockModel() {
+}
+
+void IsochronousClockModel::start(int64_t nanoTime) {
+    ALOGD("IsochronousClockModel::start(nanos = %lld)\n", (long long) nanoTime);
+    mMarkerNanoTime = nanoTime;
+    mState = STATE_STARTING;
+}
+
+void IsochronousClockModel::stop(int64_t nanoTime) {
+    ALOGD("IsochronousClockModel::stop(nanos = %lld)\n", (long long) nanoTime);
+    mMarkerNanoTime = nanoTime;
+    mMarkerFramePosition = convertTimeToPosition(nanoTime); // TODO should we do this?
+    mState = STATE_STOPPED;
+}
+
+void IsochronousClockModel::processTimestamp(int64_t framePosition, int64_t nanoTime) {
+    int64_t framesDelta = framePosition - mMarkerFramePosition;
+    int64_t nanosDelta = nanoTime - mMarkerNanoTime;
+    if (nanosDelta < 1000) {
+        return;
+    }
+
+//    ALOGD("processTimestamp() - mMarkerFramePosition = %lld at mMarkerNanoTime %llu",
+//         (long long)mMarkerFramePosition,
+//         (long long)mMarkerNanoTime);
+//    ALOGD("processTimestamp() - framePosition = %lld at nanoTime %llu",
+//         (long long)framePosition,
+//         (long long)nanoTime);
+
+    int64_t expectedNanosDelta = convertDeltaPositionToTime(framesDelta);
+//    ALOGD("processTimestamp() - expectedNanosDelta = %lld, nanosDelta = %llu",
+//         (long long)expectedNanosDelta,
+//         (long long)nanosDelta);
+
+//    ALOGD("processTimestamp() - mSampleRate = %d", mSampleRate);
+//    ALOGD("processTimestamp() - mState = %d", mState);
+    switch (mState) {
+    case STATE_STOPPED:
+        break;
+    case STATE_STARTING:
+        mMarkerFramePosition = framePosition;
+        mMarkerNanoTime = nanoTime;
+        mState = STATE_SYNCING;
+        break;
+    case STATE_SYNCING:
+        // This will handle a burst of rapid transfer at the beginning.
+        if (nanosDelta < expectedNanosDelta) {
+            mMarkerFramePosition = framePosition;
+            mMarkerNanoTime = nanoTime;
+        } else {
+//            ALOGD("processTimestamp() - advance to STATE_RUNNING");
+            mState = STATE_RUNNING;
+        }
+        break;
+    case STATE_RUNNING:
+        if (nanosDelta < expectedNanosDelta) {
+            // Earlier than expected timestamp.
+            // This data is probably more accurate so use it.
+            // or we may be drifting due to a slow HW clock.
+            mMarkerFramePosition = framePosition;
+            mMarkerNanoTime = nanoTime;
+//            ALOGD("processTimestamp() - STATE_RUNNING - %d < %d micros - EARLY",
+//                 (int) (nanosDelta / 1000), (int)(expectedNanosDelta / 1000));
+        } else if (nanosDelta > (expectedNanosDelta + mMaxLatenessInNanos)) {
+            // Later than expected timestamp.
+            mMarkerFramePosition = framePosition;
+            mMarkerNanoTime = nanoTime - mMaxLatenessInNanos;
+//            ALOGD("processTimestamp() - STATE_RUNNING - %d > %d + %d micros - LATE",
+//                 (int) (nanosDelta / 1000), (int)(expectedNanosDelta / 1000),
+//                 (int) (mMaxLatenessInNanos / 1000));
+        }
+        break;
+    default:
+        break;
+    }
+}
+
+void IsochronousClockModel::setSampleRate(int32_t sampleRate) {
+    mSampleRate = sampleRate;
+    update();
+}
+
+void IsochronousClockModel::setFramesPerBurst(int32_t framesPerBurst) {
+    mFramesPerBurst = framesPerBurst;
+    update();
+}
+
+void IsochronousClockModel::update() {
+    int64_t nanosLate = convertDeltaPositionToTime(mFramesPerBurst); // uses mSampleRate
+    mMaxLatenessInNanos = (nanosLate > MIN_LATENESS_NANOS) ? nanosLate : MIN_LATENESS_NANOS;
+}
+
+int64_t IsochronousClockModel::convertDeltaPositionToTime(
+        int64_t framesDelta) const {
+    return (AAUDIO_NANOS_PER_SECOND * framesDelta) / mSampleRate;
+}
+
+int64_t IsochronousClockModel::convertDeltaTimeToPosition(int64_t nanosDelta) const {
+    return (mSampleRate * nanosDelta) / AAUDIO_NANOS_PER_SECOND;
+}
+
+int64_t IsochronousClockModel::convertPositionToTime(int64_t framePosition) const {
+    if (mState == STATE_STOPPED) {
+        return mMarkerNanoTime;
+    }
+    int64_t nextBurstIndex = (framePosition + mFramesPerBurst - 1) / mFramesPerBurst;
+    int64_t nextBurstPosition = mFramesPerBurst * nextBurstIndex;
+    int64_t framesDelta = nextBurstPosition - mMarkerFramePosition;
+    int64_t nanosDelta = convertDeltaPositionToTime(framesDelta);
+    int64_t time = (int64_t) (mMarkerNanoTime + nanosDelta);
+//    ALOGD("IsochronousClockModel::convertPositionToTime: pos = %llu --> time = %llu",
+//         (unsigned long long)framePosition,
+//         (unsigned long long)time);
+    return time;
+}
+
+int64_t IsochronousClockModel::convertTimeToPosition(int64_t nanoTime) const {
+    if (mState == STATE_STOPPED) {
+        return mMarkerFramePosition;
+    }
+    int64_t nanosDelta = nanoTime - mMarkerNanoTime;
+    int64_t framesDelta = convertDeltaTimeToPosition(nanosDelta);
+    int64_t nextBurstPosition = mMarkerFramePosition + framesDelta;
+    int64_t nextBurstIndex = nextBurstPosition / mFramesPerBurst;
+    int64_t position = nextBurstIndex * mFramesPerBurst;
+//    ALOGD("IsochronousClockModel::convertTimeToPosition: time = %llu --> pos = %llu",
+//         (unsigned long long)nanoTime,
+//         (unsigned long long)position);
+//    ALOGD("IsochronousClockModel::convertTimeToPosition: framesDelta = %llu, mFramesPerBurst = %d",
+//         (long long) framesDelta, mFramesPerBurst);
+    return position;
+}
diff --git a/media/libaaudio/src/client/IsochronousClockModel.h b/media/libaaudio/src/client/IsochronousClockModel.h
new file mode 100644
index 0000000..0314f55
--- /dev/null
+++ b/media/libaaudio/src/client/IsochronousClockModel.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AAUDIO_ISOCHRONOUS_CLOCK_MODEL_H
+#define ANDROID_AAUDIO_ISOCHRONOUS_CLOCK_MODEL_H
+
+#include <stdint.h>
+
+namespace aaudio {
+
+/**
+ * Model an isochronous data stream using occasional timestamps as input.
+ * This can be used to predict the position of the stream at a given time.
+ *
+ * This class is not thread safe and should only be called from one thread.
+ */
+class IsochronousClockModel {
+
+public:
+    IsochronousClockModel();
+    virtual ~IsochronousClockModel();
+
+    void start(int64_t nanoTime);
+    void stop(int64_t nanoTime);
+
+    void processTimestamp(int64_t framePosition, int64_t nanoTime);
+
+    /**
+     * @param sampleRate rate of the stream in frames per second
+     */
+    void setSampleRate(int32_t sampleRate);
+
+    int32_t getSampleRate() const {
+        return mSampleRate;
+    }
+
+    /**
+     * This must be set accurately in order to track the isochronous stream.
+     *
+     * @param framesPerBurst number of frames that stream advance at one time.
+     */
+    void setFramesPerBurst(int32_t framesPerBurst);
+
+    int32_t getFramesPerBurst() const {
+        return mFramesPerBurst;
+    }
+
+    /**
+     * Calculate an estimated time when the stream will be at that position.
+     *
+     * @param framePosition position of the stream in frames
+     * @return time in nanoseconds
+     */
+    int64_t convertPositionToTime(int64_t framePosition) const;
+
+    /**
+     * Calculate an estimated position where the stream will be at the specified time.
+     *
+     * @param nanoTime time of interest
+     * @return position in frames
+     */
+    int64_t convertTimeToPosition(int64_t nanoTime) const;
+
+    /**
+     * @param framesDelta difference in frames
+     * @return duration in nanoseconds
+     */
+    int64_t convertDeltaPositionToTime(int64_t framesDelta) const;
+
+    /**
+     * @param nanosDelta duration in nanoseconds
+     * @return frames that stream will advance in that time
+     */
+    int64_t convertDeltaTimeToPosition(int64_t nanosDelta) const;
+
+private:
+    enum clock_model_state_t {
+        STATE_STOPPED,
+        STATE_STARTING,
+        STATE_SYNCING,
+        STATE_RUNNING
+    };
+
+    int64_t             mMarkerFramePosition;
+    int64_t             mMarkerNanoTime;
+    int32_t             mSampleRate;
+    int32_t             mFramesPerBurst;
+    int32_t             mMaxLatenessInNanos;
+    clock_model_state_t mState;
+
+    void update();
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_AAUDIO_ISOCHRONOUS_CLOCK_MODEL_H
diff --git a/media/libaaudio/src/core/AAudioAudio.cpp b/media/libaaudio/src/core/AAudioAudio.cpp
new file mode 100644
index 0000000..76f98fa
--- /dev/null
+++ b/media/libaaudio/src/core/AAudioAudio.cpp
@@ -0,0 +1,490 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <time.h>
+#include <pthread.h>
+
+#include <aaudio/AAudio.h>
+#include <aaudio/AAudioTesting.h>
+
+#include "AudioStreamBuilder.h"
+#include "AudioStream.h"
+#include "AudioClock.h"
+#include "client/AudioStreamInternal.h"
+#include "HandleTracker.h"
+
+using namespace aaudio;
+
+
+// Macros for common code that includes a return.
+// TODO Consider using do{}while(0) construct. I tried but it hung AndroidStudio
+#define CONVERT_BUILDER_HANDLE_OR_RETURN() \
+    convertAAudioBuilderToStreamBuilder(builder);
+
+#define COMMON_GET_FROM_BUILDER_OR_RETURN(resultPtr) \
+    CONVERT_BUILDER_HANDLE_OR_RETURN() \
+    if ((resultPtr) == nullptr) { \
+        return AAUDIO_ERROR_NULL; \
+    }
+
+#define AAUDIO_CASE_ENUM(name) case name: return #name
+
+AAUDIO_API const char * AAudio_convertResultToText(aaudio_result_t returnCode) {
+    switch (returnCode) {
+        AAUDIO_CASE_ENUM(AAUDIO_OK);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_DISCONNECTED);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_ILLEGAL_ARGUMENT);
+        // reserved
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_INTERNAL);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_INVALID_STATE);
+        // reserved
+        // reserved
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_INVALID_HANDLE);
+         // reserved
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_UNIMPLEMENTED);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_UNAVAILABLE);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_NO_FREE_HANDLES);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_NO_MEMORY);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_NULL);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_TIMEOUT);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_WOULD_BLOCK);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_INVALID_FORMAT);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_OUT_OF_RANGE);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_NO_SERVICE);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_INVALID_RATE);
+    }
+    return "Unrecognized AAudio error.";
+}
+
+AAUDIO_API const char * AAudio_convertStreamStateToText(aaudio_stream_state_t state) {
+    switch (state) {
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_UNINITIALIZED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_UNKNOWN);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_OPEN);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_STARTING);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_STARTED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_PAUSING);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_PAUSED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_FLUSHING);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_FLUSHED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_STOPPING);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_STOPPED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_DISCONNECTED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_CLOSING);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_CLOSED);
+    }
+    return "Unrecognized AAudio state.";
+}
+
+#undef AAUDIO_CASE_ENUM
+
+
+/******************************************
+ * Static globals.
+ */
+static aaudio_policy_t s_MMapPolicy = AAUDIO_UNSPECIFIED;
+
+
+static AudioStream *convertAAudioStreamToAudioStream(AAudioStream* stream)
+{
+    return (AudioStream*) stream;
+}
+
+static AudioStreamBuilder *convertAAudioBuilderToStreamBuilder(AAudioStreamBuilder* builder)
+{
+    return (AudioStreamBuilder*) builder;
+}
+
+AAUDIO_API aaudio_result_t AAudio_createStreamBuilder(AAudioStreamBuilder** builder)
+{
+    AudioStreamBuilder *audioStreamBuilder =  new(std::nothrow) AudioStreamBuilder();
+    if (audioStreamBuilder == nullptr) {
+        return AAUDIO_ERROR_NO_MEMORY;
+    }
+    *builder = (AAudioStreamBuilder*) audioStreamBuilder;
+    return AAUDIO_OK;
+}
+
+AAUDIO_API void AAudioStreamBuilder_setPerformanceMode(AAudioStreamBuilder* builder,
+                                                       aaudio_performance_mode_t mode)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setPerformanceMode(mode);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setDeviceId(AAudioStreamBuilder* builder,
+                                                int32_t deviceId)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setDeviceId(deviceId);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setSampleRate(AAudioStreamBuilder* builder,
+                                              int32_t sampleRate)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setSampleRate(sampleRate);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setChannelCount(AAudioStreamBuilder* builder,
+                                                       int32_t channelCount)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setSamplesPerFrame(channelCount);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setSamplesPerFrame(AAudioStreamBuilder* builder,
+                                                       int32_t samplesPerFrame)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setSamplesPerFrame(samplesPerFrame);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setDirection(AAudioStreamBuilder* builder,
+                                             aaudio_direction_t direction)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setDirection(direction);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setFormat(AAudioStreamBuilder* builder,
+                                                   aaudio_format_t format)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setFormat(format);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setSharingMode(AAudioStreamBuilder* builder,
+                                                        aaudio_sharing_mode_t sharingMode)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setSharingMode(sharingMode);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setBufferCapacityInFrames(AAudioStreamBuilder* builder,
+                                                        int32_t frames)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setBufferCapacity(frames);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setDataCallback(AAudioStreamBuilder* builder,
+                                                    AAudioStream_dataCallback callback,
+                                                    void *userData)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setDataCallbackProc(callback);
+    streamBuilder->setDataCallbackUserData(userData);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setErrorCallback(AAudioStreamBuilder* builder,
+                                                 AAudioStream_errorCallback callback,
+                                                 void *userData)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setErrorCallbackProc(callback);
+    streamBuilder->setErrorCallbackUserData(userData);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setFramesPerDataCallback(AAudioStreamBuilder* builder,
+                                                int32_t frames)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setFramesPerDataCallback(frames);
+}
+
+AAUDIO_API aaudio_result_t  AAudioStreamBuilder_openStream(AAudioStreamBuilder* builder,
+                                                     AAudioStream** streamPtr)
+{
+    AudioStream *audioStream = nullptr;
+    // Please leave these logs because they are very helpful when debugging.
+    ALOGD("AAudioStreamBuilder_openStream() called ----------------------------------------");
+    AudioStreamBuilder *streamBuilder = COMMON_GET_FROM_BUILDER_OR_RETURN(streamPtr);
+    aaudio_result_t result = streamBuilder->build(&audioStream);
+    ALOGD("AAudioStreamBuilder_openStream() returns %d = %s for (%p) ----------------",
+          result, AAudio_convertResultToText(result), audioStream);
+    if (result == AAUDIO_OK) {
+        *streamPtr = (AAudioStream*) audioStream;
+    } else {
+        *streamPtr = nullptr;
+    }
+    return result;
+}
+
+AAUDIO_API aaudio_result_t  AAudioStreamBuilder_delete(AAudioStreamBuilder* builder)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    if (streamBuilder != nullptr) {
+        delete streamBuilder;
+        return AAUDIO_OK;
+    }
+    return AAUDIO_ERROR_NULL;
+}
+
+AAUDIO_API aaudio_result_t  AAudioStream_close(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    ALOGD("AAudioStream_close(%p)", stream);
+    if (audioStream != nullptr) {
+        audioStream->close();
+        delete audioStream;
+        return AAUDIO_OK;
+    }
+    return AAUDIO_ERROR_NULL;
+}
+
+AAUDIO_API aaudio_result_t  AAudioStream_requestStart(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    ALOGD("AAudioStream_requestStart(%p)", stream);
+    return audioStream->requestStart();
+}
+
+AAUDIO_API aaudio_result_t  AAudioStream_requestPause(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    ALOGD("AAudioStream_requestPause(%p)", stream);
+    return audioStream->requestPause();
+}
+
+AAUDIO_API aaudio_result_t  AAudioStream_requestFlush(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    ALOGD("AAudioStream_requestFlush(%p)", stream);
+    return audioStream->requestFlush();
+}
+
+AAUDIO_API aaudio_result_t  AAudioStream_requestStop(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    ALOGD("AAudioStream_requestStop(%p)", stream);
+    return audioStream->requestStop();
+}
+
+AAUDIO_API aaudio_result_t AAudioStream_waitForStateChange(AAudioStream* stream,
+                                            aaudio_stream_state_t inputState,
+                                            aaudio_stream_state_t *nextState,
+                                            int64_t timeoutNanoseconds)
+{
+
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->waitForStateChange(inputState, nextState, timeoutNanoseconds);
+}
+
+// ============================================================
+// Stream - non-blocking I/O
+// ============================================================
+
+AAUDIO_API aaudio_result_t AAudioStream_read(AAudioStream* stream,
+                               void *buffer,
+                               int32_t numFrames,
+                               int64_t timeoutNanoseconds)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    if (buffer == nullptr) {
+        return AAUDIO_ERROR_NULL;
+    }
+    if (numFrames < 0) {
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    } else if (numFrames == 0) {
+        return 0;
+    }
+
+    aaudio_result_t result = audioStream->read(buffer, numFrames, timeoutNanoseconds);
+
+    return result;
+}
+
+AAUDIO_API aaudio_result_t AAudioStream_write(AAudioStream* stream,
+                               const void *buffer,
+                               int32_t numFrames,
+                               int64_t timeoutNanoseconds)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    if (buffer == nullptr) {
+        return AAUDIO_ERROR_NULL;
+    }
+
+    // Don't allow writes when playing with a callback.
+    if (audioStream->getDataCallbackProc() != nullptr && audioStream->isActive()) {
+        ALOGE("Cannot write to a callback stream when running.");
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+
+    if (numFrames < 0) {
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    } else if (numFrames == 0) {
+        return 0;
+    }
+
+    aaudio_result_t result = audioStream->write(buffer, numFrames, timeoutNanoseconds);
+
+    return result;
+}
+
+// ============================================================
+// Stream - queries
+// ============================================================
+
+AAUDIO_API int32_t AAudioStream_getSampleRate(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getSampleRate();
+}
+
+AAUDIO_API int32_t AAudioStream_getChannelCount(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getSamplesPerFrame();
+}
+
+AAUDIO_API int32_t AAudioStream_getSamplesPerFrame(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getSamplesPerFrame();
+}
+
+AAUDIO_API aaudio_stream_state_t AAudioStream_getState(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getState();
+}
+
+AAUDIO_API aaudio_format_t AAudioStream_getFormat(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getFormat();
+}
+
+AAUDIO_API aaudio_result_t AAudioStream_setBufferSizeInFrames(AAudioStream* stream,
+                                                int32_t requestedFrames)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->setBufferSize(requestedFrames);
+}
+
+AAUDIO_API int32_t AAudioStream_getBufferSizeInFrames(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getBufferSize();
+}
+
+AAUDIO_API aaudio_direction_t AAudioStream_getDirection(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getDirection();
+}
+
+AAUDIO_API int32_t AAudioStream_getFramesPerBurst(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getFramesPerBurst();
+}
+
+AAUDIO_API int32_t AAudioStream_getFramesPerDataCallback(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getFramesPerDataCallback();
+}
+
+AAUDIO_API int32_t AAudioStream_getBufferCapacityInFrames(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getBufferCapacity();
+}
+
+AAUDIO_API int32_t AAudioStream_getXRunCount(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getXRunCount();
+}
+
+AAUDIO_API aaudio_performance_mode_t AAudioStream_getPerformanceMode(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getPerformanceMode();
+}
+
+AAUDIO_API int32_t AAudioStream_getDeviceId(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getDeviceId();
+}
+
+AAUDIO_API aaudio_sharing_mode_t AAudioStream_getSharingMode(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getSharingMode();
+}
+
+AAUDIO_API int64_t AAudioStream_getFramesWritten(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getFramesWritten();
+}
+
+AAUDIO_API int64_t AAudioStream_getFramesRead(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getFramesRead();
+}
+
+AAUDIO_API aaudio_result_t AAudioStream_getTimestamp(AAudioStream* stream,
+                                      clockid_t clockid,
+                                      int64_t *framePosition,
+                                      int64_t *timeNanoseconds)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    if (framePosition == nullptr) {
+        return AAUDIO_ERROR_NULL;
+    } else if (timeNanoseconds == nullptr) {
+        return AAUDIO_ERROR_NULL;
+    } else if (clockid != CLOCK_MONOTONIC && clockid != CLOCK_BOOTTIME) {
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    }
+
+    return audioStream->getTimestamp(clockid, framePosition, timeNanoseconds);
+}
+
+AAUDIO_API aaudio_policy_t AAudio_getMMapPolicy() {
+    return s_MMapPolicy;
+}
+
+AAUDIO_API aaudio_result_t AAudio_setMMapPolicy(aaudio_policy_t policy) {
+    aaudio_result_t result = AAUDIO_OK;
+    switch(policy) {
+        case AAUDIO_UNSPECIFIED:
+        case AAUDIO_POLICY_NEVER:
+        case AAUDIO_POLICY_AUTO:
+        case AAUDIO_POLICY_ALWAYS:
+            s_MMapPolicy = policy;
+            break;
+        default:
+            result = AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+            break;
+    }
+    return result;
+}
+
+AAUDIO_API bool AAudioStream_isMMapUsed(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->isMMap();
+}
diff --git a/media/libaaudio/src/core/AudioStream.cpp b/media/libaaudio/src/core/AudioStream.cpp
new file mode 100644
index 0000000..e1e3c55
--- /dev/null
+++ b/media/libaaudio/src/core/AudioStream.cpp
@@ -0,0 +1,197 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <atomic>
+#include <stdint.h>
+#include <aaudio/AAudio.h>
+
+#include "AudioStreamBuilder.h"
+#include "AudioStream.h"
+#include "AudioClock.h"
+
+using namespace aaudio;
+
+AudioStream::AudioStream()
+        : mCallbackEnabled(false)
+{
+    // mThread is a pthread_t of unknown size so we need memset.
+    memset(&mThread, 0, sizeof(mThread));
+    setPeriodNanoseconds(0);
+}
+
+aaudio_result_t AudioStream::open(const AudioStreamBuilder& builder)
+{
+    // Copy parameters from the Builder because the Builder may be deleted after this call.
+    mSamplesPerFrame = builder.getSamplesPerFrame();
+    mSampleRate = builder.getSampleRate();
+    mDeviceId = builder.getDeviceId();
+    mFormat = builder.getFormat();
+    mSharingMode = builder.getSharingMode();
+    mSharingModeMatchRequired = builder.isSharingModeMatchRequired();
+
+    mPerformanceMode = builder.getPerformanceMode();
+
+    // callbacks
+    mFramesPerDataCallback = builder.getFramesPerDataCallback();
+    mDataCallbackProc = builder.getDataCallbackProc();
+    mErrorCallbackProc = builder.getErrorCallbackProc();
+    mDataCallbackUserData = builder.getDataCallbackUserData();
+    mErrorCallbackUserData = builder.getErrorCallbackUserData();
+
+    // This is very helpful for debugging in the future. Please leave it in.
+    ALOGI("AudioStream::open() rate = %d, channels = %d, format = %d, sharing = %d, dir = %s",
+          mSampleRate, mSamplesPerFrame, mFormat, mSharingMode,
+          (getDirection() == AAUDIO_DIRECTION_OUTPUT) ? "OUTPUT" : "INPUT");
+    ALOGI("AudioStream::open() device = %d, perfMode = %d, callbackFrames = %d",
+          mDeviceId, mPerformanceMode, mFramesPerDataCallback);
+
+    // Check for values that are ridiculously out of range to prevent math overflow exploits.
+    // The service will do a better check.
+    if (mSamplesPerFrame < 0 || mSamplesPerFrame > 128) {
+        ALOGE("AudioStream::open(): samplesPerFrame out of range = %d", mSamplesPerFrame);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+
+    switch(mFormat) {
+        case AAUDIO_FORMAT_UNSPECIFIED:
+        case AAUDIO_FORMAT_PCM_I16:
+        case AAUDIO_FORMAT_PCM_FLOAT:
+            break; // valid
+        default:
+            ALOGE("AudioStream::open(): audioFormat not valid = %d", mFormat);
+            return AAUDIO_ERROR_INVALID_FORMAT;
+            // break;
+    }
+
+    if (mSampleRate != AAUDIO_UNSPECIFIED && (mSampleRate < 8000 || mSampleRate > 1000000)) {
+        ALOGE("AudioStream::open(): mSampleRate out of range = %d", mSampleRate);
+        return AAUDIO_ERROR_INVALID_RATE;
+    }
+
+    switch(mPerformanceMode) {
+        case AAUDIO_PERFORMANCE_MODE_NONE:
+        case AAUDIO_PERFORMANCE_MODE_POWER_SAVING:
+        case AAUDIO_PERFORMANCE_MODE_LOW_LATENCY:
+            break;
+        default:
+            ALOGE("AudioStream::open(): illegal performanceMode %d", mPerformanceMode);
+            return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    }
+
+    return AAUDIO_OK;
+}
+
+AudioStream::~AudioStream() {
+    close();
+}
+
+aaudio_result_t AudioStream::waitForStateChange(aaudio_stream_state_t currentState,
+                                                aaudio_stream_state_t *nextState,
+                                                int64_t timeoutNanoseconds)
+{
+    aaudio_result_t result = updateStateWhileWaiting();
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    int64_t durationNanos = 20 * AAUDIO_NANOS_PER_MILLISECOND; // arbitrary
+    aaudio_stream_state_t state = getState();
+    while (state == currentState && timeoutNanoseconds > 0) {
+        if (durationNanos > timeoutNanoseconds) {
+            durationNanos = timeoutNanoseconds;
+        }
+        AudioClock::sleepForNanos(durationNanos);
+        timeoutNanoseconds -= durationNanos;
+
+        aaudio_result_t result = updateStateWhileWaiting();
+        if (result != AAUDIO_OK) {
+            return result;
+        }
+
+        state = getState();
+    }
+    if (nextState != nullptr) {
+        *nextState = state;
+    }
+    return (state == currentState) ? AAUDIO_ERROR_TIMEOUT : AAUDIO_OK;
+}
+
+// This registers the callback thread with the server before
+// passing control to the app. This gives the server an opportunity to boost
+// the thread's performance characteristics.
+void* AudioStream::wrapUserThread() {
+    void* procResult = nullptr;
+    mThreadRegistrationResult = registerThread();
+    if (mThreadRegistrationResult == AAUDIO_OK) {
+        // Run callback loop. This may take a very long time.
+        procResult = mThreadProc(mThreadArg);
+        mThreadRegistrationResult = unregisterThread();
+    }
+    return procResult;
+}
+
+// This is the entry point for the new thread created by createThread().
+// It converts the 'C' function call to a C++ method call.
+static void* AudioStream_internalThreadProc(void* threadArg) {
+    AudioStream *audioStream = (AudioStream *) threadArg;
+    return audioStream->wrapUserThread();
+}
+
+// This is not exposed in the API.
+// But it is still used internally to implement callbacks for MMAP mode.
+aaudio_result_t AudioStream::createThread(int64_t periodNanoseconds,
+                                     aaudio_audio_thread_proc_t threadProc,
+                                     void* threadArg)
+{
+    if (mHasThread) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    if (threadProc == nullptr) {
+        return AAUDIO_ERROR_NULL;
+    }
+    // Pass input parameters to the background thread.
+    mThreadProc = threadProc;
+    mThreadArg = threadArg;
+    setPeriodNanoseconds(periodNanoseconds);
+    int err = pthread_create(&mThread, nullptr, AudioStream_internalThreadProc, this);
+    if (err != 0) {
+        return AAudioConvert_androidToAAudioResult(-errno);
+    } else {
+        mHasThread = true;
+        return AAUDIO_OK;
+    }
+}
+
+aaudio_result_t AudioStream::joinThread(void** returnArg, int64_t timeoutNanoseconds)
+{
+    if (!mHasThread) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+#if 0
+    // TODO implement equivalent of pthread_timedjoin_np()
+    struct timespec abstime;
+    int err = pthread_timedjoin_np(mThread, returnArg, &abstime);
+#else
+    int err = pthread_join(mThread, returnArg);
+#endif
+    mHasThread = false;
+    return err ? AAudioConvert_androidToAAudioResult(-errno) : mThreadRegistrationResult;
+}
+
diff --git a/media/libaaudio/src/core/AudioStream.h b/media/libaaudio/src/core/AudioStream.h
new file mode 100644
index 0000000..39c9f9c
--- /dev/null
+++ b/media/libaaudio/src/core/AudioStream.h
@@ -0,0 +1,332 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AUDIOSTREAM_H
+#define AAUDIO_AUDIOSTREAM_H
+
+#include <atomic>
+#include <mutex>
+#include <stdint.h>
+#include <aaudio/AAudio.h>
+
+#include "utility/AAudioUtilities.h"
+#include "utility/MonotonicCounter.h"
+
+namespace aaudio {
+
+typedef void *(*aaudio_audio_thread_proc_t)(void *);
+
+class AudioStreamBuilder;
+
+/**
+ * AAudio audio stream.
+ */
+class AudioStream {
+public:
+
+    AudioStream();
+
+    virtual ~AudioStream();
+
+
+    // =========== Begin ABSTRACT methods ===========================
+
+    /* Asynchronous requests.
+     * Use waitForStateChange() to wait for completion.
+     */
+    virtual aaudio_result_t requestStart() = 0;
+    virtual aaudio_result_t requestPause() = 0;
+    virtual aaudio_result_t requestFlush() = 0;
+    virtual aaudio_result_t requestStop() = 0;
+
+    virtual aaudio_result_t getTimestamp(clockid_t clockId,
+                                       int64_t *framePosition,
+                                       int64_t *timeNanoseconds) = 0;
+
+
+    /**
+     * Update state while in the middle of waitForStateChange()
+     * @return
+     */
+    virtual aaudio_result_t updateStateWhileWaiting() = 0;
+
+
+    // =========== End ABSTRACT methods ===========================
+
+    virtual aaudio_result_t waitForStateChange(aaudio_stream_state_t currentState,
+                                               aaudio_stream_state_t *nextState,
+                                               int64_t timeoutNanoseconds);
+
+    /**
+     * Open the stream using the parameters in the builder.
+     * Allocate the necessary resources.
+     */
+    virtual aaudio_result_t open(const AudioStreamBuilder& builder);
+
+    /**
+     * Close the stream and deallocate any resources from the open() call.
+     * It is safe to call close() multiple times.
+     */
+    virtual aaudio_result_t close() {
+        return AAUDIO_OK;
+    }
+
+    virtual aaudio_result_t setBufferSize(int32_t requestedFrames) {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    virtual aaudio_result_t createThread(int64_t periodNanoseconds,
+                                       aaudio_audio_thread_proc_t threadProc,
+                                       void *threadArg);
+
+    aaudio_result_t joinThread(void **returnArg, int64_t timeoutNanoseconds);
+
+    virtual aaudio_result_t registerThread() {
+        return AAUDIO_OK;
+    }
+
+    virtual aaudio_result_t unregisterThread() {
+        return AAUDIO_OK;
+    }
+
+    /**
+     * Internal function used to call the audio thread passed by the user.
+     * It is unfortunately public because it needs to be called by a static 'C' function.
+     */
+    void* wrapUserThread();
+
+    // ============== Queries ===========================
+
+    aaudio_stream_state_t getState() const {
+        return mState;
+    }
+
+    virtual int32_t getBufferSize() const {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    virtual int32_t getBufferCapacity() const {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    virtual int32_t getFramesPerBurst() const {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    virtual int32_t getXRunCount() const {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    bool isActive() const {
+        return mState == AAUDIO_STREAM_STATE_STARTING || mState == AAUDIO_STREAM_STATE_STARTED;
+    }
+
+    virtual bool isMMap() {
+        return false;
+    }
+
+    aaudio_result_t getSampleRate() const {
+        return mSampleRate;
+    }
+
+    aaudio_format_t getFormat()  const {
+        return mFormat;
+    }
+
+    aaudio_result_t getSamplesPerFrame() const {
+        return mSamplesPerFrame;
+    }
+
+    virtual int32_t getPerformanceMode() const {
+        return mPerformanceMode;
+    }
+
+    void setPerformanceMode(aaudio_performance_mode_t performanceMode) {
+        mPerformanceMode = performanceMode;
+    }
+
+    int32_t getDeviceId() const {
+        return mDeviceId;
+    }
+
+    aaudio_sharing_mode_t getSharingMode() const {
+        return mSharingMode;
+    }
+
+    bool isSharingModeMatchRequired() const {
+        return mSharingModeMatchRequired;
+    }
+
+    virtual aaudio_direction_t getDirection() const = 0;
+
+    /**
+     * This is only valid after setSamplesPerFrame() and setFormat() have been called.
+     */
+    int32_t getBytesPerFrame() const {
+        return mSamplesPerFrame * getBytesPerSample();
+    }
+
+    /**
+     * This is only valid after setFormat() has been called.
+     */
+    int32_t getBytesPerSample() const {
+        return AAudioConvert_formatToSizeInBytes(mFormat);
+    }
+
+    virtual int64_t getFramesWritten() {
+        return mFramesWritten.get();
+    }
+
+    virtual int64_t getFramesRead() {
+        return mFramesRead.get();
+    }
+
+    AAudioStream_dataCallback getDataCallbackProc() const {
+        return mDataCallbackProc;
+    }
+    AAudioStream_errorCallback getErrorCallbackProc() const {
+        return mErrorCallbackProc;
+    }
+
+    void *getDataCallbackUserData() const {
+        return mDataCallbackUserData;
+    }
+    void *getErrorCallbackUserData() const {
+        return mErrorCallbackUserData;
+    }
+
+    int32_t getFramesPerDataCallback() const {
+        return mFramesPerDataCallback;
+    }
+
+    bool isDataCallbackActive() {
+        return (mDataCallbackProc != nullptr) && isActive();
+    }
+
+    // ============== I/O ===========================
+    // A Stream will only implement read() or write() depending on its direction.
+    virtual aaudio_result_t write(const void *buffer,
+                             int32_t numFrames,
+                             int64_t timeoutNanoseconds) {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    virtual aaudio_result_t read(void *buffer,
+                            int32_t numFrames,
+                            int64_t timeoutNanoseconds) {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+protected:
+
+    virtual int64_t incrementFramesWritten(int32_t frames) {
+        return mFramesWritten.increment(frames);
+    }
+
+    virtual int64_t incrementFramesRead(int32_t frames) {
+        return mFramesRead.increment(frames);
+    }
+
+    /**
+     * This should not be called after the open() call.
+     */
+    void setSampleRate(int32_t sampleRate) {
+        mSampleRate = sampleRate;
+    }
+
+    /**
+     * This should not be called after the open() call.
+     */
+    void setSamplesPerFrame(int32_t samplesPerFrame) {
+        mSamplesPerFrame = samplesPerFrame;
+    }
+
+    /**
+     * This should not be called after the open() call.
+     */
+    void setSharingMode(aaudio_sharing_mode_t sharingMode) {
+        mSharingMode = sharingMode;
+    }
+
+    /**
+     * This should not be called after the open() call.
+     */
+    void setFormat(aaudio_format_t format) {
+        mFormat = format;
+    }
+
+    void setState(aaudio_stream_state_t state) {
+        mState = state;
+    }
+
+    void setDeviceId(int32_t deviceId) {
+        mDeviceId = deviceId;
+    }
+
+    std::mutex           mStreamMutex;
+
+    std::atomic<bool>    mCallbackEnabled;
+
+protected:
+    MonotonicCounter     mFramesWritten;
+    MonotonicCounter     mFramesRead;
+
+    void setPeriodNanoseconds(int64_t periodNanoseconds) {
+        mPeriodNanoseconds.store(periodNanoseconds, std::memory_order_release);
+    }
+
+    int64_t getPeriodNanoseconds() {
+        return mPeriodNanoseconds.load(std::memory_order_acquire);
+    }
+
+private:
+    // These do not change after open().
+    int32_t                mSamplesPerFrame = AAUDIO_UNSPECIFIED;
+    int32_t                mSampleRate = AAUDIO_UNSPECIFIED;
+    int32_t                mDeviceId = AAUDIO_UNSPECIFIED;
+    aaudio_sharing_mode_t  mSharingMode = AAUDIO_SHARING_MODE_SHARED;
+    bool                   mSharingModeMatchRequired = false; // must match sharing mode requested
+    aaudio_format_t        mFormat = AAUDIO_FORMAT_UNSPECIFIED;
+    aaudio_stream_state_t  mState = AAUDIO_STREAM_STATE_UNINITIALIZED;
+
+    aaudio_performance_mode_t mPerformanceMode = AAUDIO_PERFORMANCE_MODE_NONE;
+
+    // callback ----------------------------------
+
+    AAudioStream_dataCallback   mDataCallbackProc = nullptr;  // external callback functions
+    void                       *mDataCallbackUserData = nullptr;
+    int32_t                     mFramesPerDataCallback = AAUDIO_UNSPECIFIED; // frames
+
+    AAudioStream_errorCallback  mErrorCallbackProc = nullptr;
+    void                       *mErrorCallbackUserData = nullptr;
+
+    // background thread ----------------------------------
+    bool                   mHasThread = false;
+    pthread_t              mThread; // initialized in constructor
+
+    // These are set by the application thread and then read by the audio pthread.
+    std::atomic<int64_t>   mPeriodNanoseconds; // for tuning SCHED_FIFO threads
+    // TODO make atomic?
+    aaudio_audio_thread_proc_t mThreadProc = nullptr;
+    void*                  mThreadArg = nullptr;
+    aaudio_result_t        mThreadRegistrationResult = AAUDIO_OK;
+
+
+};
+
+} /* namespace aaudio */
+
+#endif /* AAUDIO_AUDIOSTREAM_H */
diff --git a/media/libaaudio/src/core/AudioStreamBuilder.cpp b/media/libaaudio/src/core/AudioStreamBuilder.cpp
new file mode 100644
index 0000000..4262f27
--- /dev/null
+++ b/media/libaaudio/src/core/AudioStreamBuilder.cpp
@@ -0,0 +1,149 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <new>
+#include <stdint.h>
+
+#include <aaudio/AAudio.h>
+#include <aaudio/AAudioTesting.h>
+
+#include "binding/AAudioBinderClient.h"
+#include "client/AudioStreamInternalCapture.h"
+#include "client/AudioStreamInternalPlay.h"
+#include "core/AudioStream.h"
+#include "core/AudioStreamBuilder.h"
+#include "legacy/AudioStreamRecord.h"
+#include "legacy/AudioStreamTrack.h"
+
+using namespace aaudio;
+
+#define AAUDIO_MMAP_POLICY_DEFAULT             AAUDIO_POLICY_NEVER
+#define AAUDIO_MMAP_EXCLUSIVE_POLICY_DEFAULT   AAUDIO_POLICY_NEVER
+
+/*
+ * AudioStreamBuilder
+ */
+AudioStreamBuilder::AudioStreamBuilder() {
+}
+
+AudioStreamBuilder::~AudioStreamBuilder() {
+}
+
+static aaudio_result_t builder_createStream(aaudio_direction_t direction,
+                                         aaudio_sharing_mode_t sharingMode,
+                                         bool tryMMap,
+                                         AudioStream **audioStreamPtr) {
+    *audioStreamPtr = nullptr;
+    aaudio_result_t result = AAUDIO_OK;
+
+    switch (direction) {
+
+        case AAUDIO_DIRECTION_INPUT:
+            if (tryMMap) {
+                *audioStreamPtr = new AudioStreamInternalCapture(AAudioBinderClient::getInstance(),
+                                                                 false);
+            } else {
+                *audioStreamPtr = new AudioStreamRecord();
+            }
+            break;
+
+        case AAUDIO_DIRECTION_OUTPUT:
+            if (tryMMap) {
+                *audioStreamPtr = new AudioStreamInternalPlay(AAudioBinderClient::getInstance(),
+                                                              false);
+            } else {
+                *audioStreamPtr = new AudioStreamTrack();
+            }
+            break;
+
+        default:
+            ALOGE("AudioStreamBuilder(): bad direction = %d", direction);
+            result = AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    }
+    return result;
+}
+
+// Try to open using MMAP path if that is allowed.
+// Fall back to Legacy path if MMAP not available.
+// Exact behavior is controlled by MMapPolicy.
+aaudio_result_t AudioStreamBuilder::build(AudioStream** streamPtr) {
+    AudioStream *audioStream = nullptr;
+    *streamPtr = nullptr;
+
+    // The API setting is the highest priority.
+    aaudio_policy_t mmapPolicy = AAudio_getMMapPolicy();
+    // If not specified then get from a system property.
+    if (mmapPolicy == AAUDIO_UNSPECIFIED) {
+        mmapPolicy = AAudioProperty_getMMapPolicy();
+    }
+    // If still not specified then use the default.
+    if (mmapPolicy == AAUDIO_UNSPECIFIED) {
+        mmapPolicy = AAUDIO_MMAP_POLICY_DEFAULT;
+    }
+
+    int32_t mapExclusivePolicy = AAudioProperty_getMMapExclusivePolicy();
+    if (mapExclusivePolicy == AAUDIO_UNSPECIFIED) {
+        mapExclusivePolicy = AAUDIO_MMAP_EXCLUSIVE_POLICY_DEFAULT;
+    }
+    ALOGD("AudioStreamBuilder(): mmapPolicy = %d, mapExclusivePolicy = %d",
+          mmapPolicy, mapExclusivePolicy);
+
+    aaudio_sharing_mode_t sharingMode = getSharingMode();
+    if ((sharingMode == AAUDIO_SHARING_MODE_EXCLUSIVE)
+        && (mapExclusivePolicy == AAUDIO_POLICY_NEVER)) {
+        ALOGW("AudioStreamBuilder(): EXCLUSIVE sharing mode not supported. Use SHARED.");
+        sharingMode = AAUDIO_SHARING_MODE_SHARED;
+        setSharingMode(sharingMode);
+    }
+
+    bool allowMMap = mmapPolicy != AAUDIO_POLICY_NEVER;
+    bool allowLegacy = mmapPolicy != AAUDIO_POLICY_ALWAYS;
+
+    aaudio_result_t result = builder_createStream(getDirection(), sharingMode,
+                                                  allowMMap, &audioStream);
+    if (result == AAUDIO_OK) {
+        // Open the stream using the parameters from the builder.
+        result = audioStream->open(*this);
+        if (result == AAUDIO_OK) {
+            *streamPtr = audioStream;
+        } else {
+            bool isMMap = audioStream->isMMap();
+            delete audioStream;
+            audioStream = nullptr;
+
+            if (isMMap && allowLegacy) {
+                ALOGD("AudioStreamBuilder.build() MMAP stream did not open so try Legacy path");
+                // If MMAP stream failed to open then TRY using a legacy stream.
+                result = builder_createStream(getDirection(), sharingMode,
+                                              false, &audioStream);
+                if (result == AAUDIO_OK) {
+                    result = audioStream->open(*this);
+                    if (result == AAUDIO_OK) {
+                        *streamPtr = audioStream;
+                    } else {
+                        delete audioStream;
+                    }
+                }
+            }
+        }
+    }
+
+    return result;
+}
diff --git a/media/libaaudio/src/core/AudioStreamBuilder.h b/media/libaaudio/src/core/AudioStreamBuilder.h
new file mode 100644
index 0000000..fd416c4
--- /dev/null
+++ b/media/libaaudio/src/core/AudioStreamBuilder.h
@@ -0,0 +1,189 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AUDIO_STREAM_BUILDER_H
+#define AAUDIO_AUDIO_STREAM_BUILDER_H
+
+#include <stdint.h>
+
+#include <aaudio/AAudio.h>
+
+#include "AudioStream.h"
+
+namespace aaudio {
+
+/**
+ * Factory class for an AudioStream.
+ */
+class AudioStreamBuilder {
+public:
+    AudioStreamBuilder();
+
+    ~AudioStreamBuilder();
+
+    int getSamplesPerFrame() const {
+        return mSamplesPerFrame;
+    }
+
+    /**
+     * This is also known as channelCount.
+     */
+    AudioStreamBuilder* setSamplesPerFrame(int samplesPerFrame) {
+        mSamplesPerFrame = samplesPerFrame;
+        return this;
+    }
+
+    aaudio_direction_t getDirection() const {
+        return mDirection;
+    }
+
+    AudioStreamBuilder* setDirection(aaudio_direction_t direction) {
+        mDirection = direction;
+        return this;
+    }
+
+    int32_t getSampleRate() const {
+        return mSampleRate;
+    }
+
+    AudioStreamBuilder* setSampleRate(int32_t sampleRate) {
+        mSampleRate = sampleRate;
+        return this;
+    }
+
+    aaudio_format_t getFormat() const {
+        return mFormat;
+    }
+
+    AudioStreamBuilder *setFormat(aaudio_format_t format) {
+        mFormat = format;
+        return this;
+    }
+
+    aaudio_sharing_mode_t getSharingMode() const {
+        return mSharingMode;
+    }
+
+    AudioStreamBuilder* setSharingMode(aaudio_sharing_mode_t sharingMode) {
+        mSharingMode = sharingMode;
+        return this;
+    }
+
+    bool isSharingModeMatchRequired() const {
+        return mSharingModeMatchRequired;
+    }
+
+    AudioStreamBuilder* setSharingModeMatchRequired(bool required) {
+        mSharingModeMatchRequired = required;
+        return this;
+    }
+
+    int32_t getBufferCapacity() const {
+        return mBufferCapacity;
+    }
+
+    AudioStreamBuilder* setBufferCapacity(int32_t frames) {
+        mBufferCapacity = frames;
+        return this;
+    }
+
+    int32_t getPerformanceMode() const {
+        return mPerformanceMode;
+    }
+
+    AudioStreamBuilder* setPerformanceMode(aaudio_performance_mode_t performanceMode) {
+        mPerformanceMode = performanceMode;
+        return this;
+    }
+
+    int32_t getDeviceId() const {
+        return mDeviceId;
+    }
+
+    AudioStreamBuilder* setDeviceId(int32_t deviceId) {
+        mDeviceId = deviceId;
+        return this;
+    }
+
+    AAudioStream_dataCallback getDataCallbackProc() const {
+        return mDataCallbackProc;
+    }
+
+    AudioStreamBuilder* setDataCallbackProc(AAudioStream_dataCallback proc) {
+        mDataCallbackProc = proc;
+        return this;
+    }
+
+    void *getDataCallbackUserData() const {
+        return mDataCallbackUserData;
+    }
+
+    AudioStreamBuilder* setDataCallbackUserData(void *userData) {
+        mDataCallbackUserData = userData;
+        return this;
+    }
+
+    AAudioStream_errorCallback getErrorCallbackProc() const {
+        return mErrorCallbackProc;
+    }
+
+    AudioStreamBuilder* setErrorCallbackProc(AAudioStream_errorCallback proc) {
+        mErrorCallbackProc = proc;
+        return this;
+    }
+
+    AudioStreamBuilder* setErrorCallbackUserData(void *userData) {
+        mErrorCallbackUserData = userData;
+        return this;
+    }
+
+    void *getErrorCallbackUserData() const {
+        return mErrorCallbackUserData;
+    }
+
+    int32_t getFramesPerDataCallback() const {
+        return mFramesPerDataCallback;
+    }
+
+    AudioStreamBuilder* setFramesPerDataCallback(int32_t sizeInFrames) {
+        mFramesPerDataCallback = sizeInFrames;
+        return this;
+    }
+
+    aaudio_result_t build(AudioStream **streamPtr);
+
+private:
+    int32_t                    mSamplesPerFrame = AAUDIO_UNSPECIFIED;
+    int32_t                    mSampleRate = AAUDIO_UNSPECIFIED;
+    int32_t                    mDeviceId = AAUDIO_UNSPECIFIED;
+    aaudio_sharing_mode_t      mSharingMode = AAUDIO_SHARING_MODE_SHARED;
+    bool                       mSharingModeMatchRequired = false; // must match sharing mode requested
+    aaudio_format_t            mFormat = AAUDIO_FORMAT_UNSPECIFIED;
+    aaudio_direction_t         mDirection = AAUDIO_DIRECTION_OUTPUT;
+    int32_t                    mBufferCapacity = AAUDIO_UNSPECIFIED;
+    aaudio_performance_mode_t  mPerformanceMode = AAUDIO_PERFORMANCE_MODE_NONE;
+
+    AAudioStream_dataCallback  mDataCallbackProc = nullptr;  // external callback functions
+    void                      *mDataCallbackUserData = nullptr;
+    int32_t                    mFramesPerDataCallback = AAUDIO_UNSPECIFIED; // frames
+
+    AAudioStream_errorCallback mErrorCallbackProc = nullptr;
+    void                      *mErrorCallbackUserData = nullptr;
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_AUDIO_STREAM_BUILDER_H
diff --git a/media/libaaudio/src/core/README.md b/media/libaaudio/src/core/README.md
new file mode 100644
index 0000000..5ce41f3
--- /dev/null
+++ b/media/libaaudio/src/core/README.md
@@ -0,0 +1,2 @@
+The core folder contains the essential AAudio files common to all implementations.
+The AAudioAudio.cpp contains the 'C' API.
diff --git a/media/libaaudio/src/core/VersionExperiment.txt b/media/libaaudio/src/core/VersionExperiment.txt
new file mode 100644
index 0000000..071239b
--- /dev/null
+++ b/media/libaaudio/src/core/VersionExperiment.txt
@@ -0,0 +1,55 @@
+
+// TODO Experiment with versioning. This may be removed or changed dramatically.
+// Please ignore for now. Do not review.
+#define OBOE_VERSION_EXPERIMENT  0
+#if OBOE_VERSION_EXPERIMENT
+
+#define OBOE_EARLIEST_SUPPORTED_VERSION  1
+#define OBOE_CURRENT_VERSION  2
+
+typedef struct OboeInterface_s {
+    int32_t size; // do not use size_t because its size can vary
+    int32_t version;
+    int32_t reserved1;
+    void *  reserved2;
+    oboe_result_t (*createStreamBuilder)(OboeStreamBuilder *);
+} OboeInterface_t;
+
+OboeInterface_t s_oboe_template = {
+        .size = sizeof(OboeInterface_t),
+        .version = OBOE_CURRENT_VERSION,
+        .reserved1 = 0,
+        .reserved2 = NULL,
+        .createStreamBuilder = Oboe_createStreamBuilder
+};
+
+oboe_result_t Oboe_Unimplemented(OboeInterface_t *oboe) {
+    (void) oboe;
+    return OBOE_ERROR_UNIMPLEMENTED;
+}
+
+typedef oboe_result_t (*OboeFunction_t)(OboeInterface_t *oboe);
+
+int32_t Oboe_Initialize(OboeInterface_t *oboe, uint32_t flags) {
+    if (oboe->version < OBOE_EARLIEST_SUPPORTED_VERSION) {
+        return OBOE_ERROR_INCOMPATIBLE;
+    }
+    // Fill in callers vector table.
+    uint8_t *start = (uint8_t*)&oboe->reserved1;
+    uint8_t *end;
+    if (oboe->size <= s_oboe_template.size) {
+        end = ((uint8_t *)oboe) + oboe->size;
+    } else {
+        end = ((uint8_t *)oboe) + s_oboe_template.size;
+        // Assume the rest of the structure is vectors.
+        // Point them all to OboeInternal_Unimplemented()
+        // Point to first vector past end of the known structure.
+        OboeFunction_t *next = (OboeFunction_t*)end;
+        while ((((uint8_t *)next) - ((uint8_t *)oboe)) < oboe->size) {
+            *next++ = Oboe_Unimplemented;
+        }
+    }
+    memcpy(&oboe->reserved1, &s_oboe_template.reserved1, end - start);
+    return OBOE_OK;
+}
+#endif /* OBOE_VERSION_EXPERIMENT -------------------------- */
diff --git a/media/libaaudio/src/fifo/FifoBuffer.cpp b/media/libaaudio/src/fifo/FifoBuffer.cpp
new file mode 100644
index 0000000..6b4a772
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoBuffer.cpp
@@ -0,0 +1,210 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cstring>
+#include <unistd.h>
+
+
+#define LOG_TAG "FifoBuffer"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include "FifoControllerBase.h"
+#include "FifoController.h"
+#include "FifoControllerIndirect.h"
+#include "FifoBuffer.h"
+
+using namespace android; // TODO just import names needed
+
+FifoBuffer::FifoBuffer(int32_t bytesPerFrame, fifo_frames_t capacityInFrames)
+        : mFrameCapacity(capacityInFrames)
+        , mBytesPerFrame(bytesPerFrame)
+        , mStorage(nullptr)
+        , mFramesReadCount(0)
+        , mFramesUnderrunCount(0)
+        , mUnderrunCount(0)
+{
+    // TODO Handle possible failures to allocate. Move out of constructor?
+    mFifo = new FifoController(capacityInFrames, capacityInFrames);
+    // allocate buffer
+    int32_t bytesPerBuffer = bytesPerFrame * capacityInFrames;
+    mStorage = new uint8_t[bytesPerBuffer];
+    mStorageOwned = true;
+    ALOGD("FifoBuffer: capacityInFrames = %d, bytesPerFrame = %d",
+          capacityInFrames, bytesPerFrame);
+}
+
+FifoBuffer::FifoBuffer( int32_t   bytesPerFrame,
+                        fifo_frames_t   capacityInFrames,
+                        fifo_counter_t *  readIndexAddress,
+                        fifo_counter_t *  writeIndexAddress,
+                        void *  dataStorageAddress
+                        )
+        : mFrameCapacity(capacityInFrames)
+        , mBytesPerFrame(bytesPerFrame)
+        , mStorage(static_cast<uint8_t *>(dataStorageAddress))
+        , mFramesReadCount(0)
+        , mFramesUnderrunCount(0)
+        , mUnderrunCount(0)
+{
+    mFifo = new FifoControllerIndirect(capacityInFrames,
+                                       capacityInFrames,
+                                       readIndexAddress,
+                                       writeIndexAddress);
+    mStorageOwned = false;
+}
+
+FifoBuffer::~FifoBuffer() {
+    if (mStorageOwned) {
+        delete[] mStorage;
+    }
+    delete mFifo;
+}
+
+
+int32_t FifoBuffer::convertFramesToBytes(fifo_frames_t frames) {
+    return frames * mBytesPerFrame;
+}
+
+void FifoBuffer::fillWrappingBuffer(WrappingBuffer *wrappingBuffer,
+                                    int32_t framesAvailable,
+                                    int32_t startIndex) {
+    wrappingBuffer->data[1] = nullptr;
+    wrappingBuffer->numFrames[1] = 0;
+    if (framesAvailable > 0) {
+
+        uint8_t *source = &mStorage[convertFramesToBytes(startIndex)];
+        // Does the available data cross the end of the FIFO?
+        if ((startIndex + framesAvailable) > mFrameCapacity) {
+            wrappingBuffer->data[0] = source;
+            wrappingBuffer->numFrames[0] = mFrameCapacity - startIndex;
+            wrappingBuffer->data[1] = &mStorage[0];
+            wrappingBuffer->numFrames[1] = mFrameCapacity - startIndex;
+
+        } else {
+            wrappingBuffer->data[0] = source;
+            wrappingBuffer->numFrames[0] = framesAvailable;
+        }
+    } else {
+        wrappingBuffer->data[0] = nullptr;
+        wrappingBuffer->numFrames[0] = 0;
+    }
+
+}
+
+void FifoBuffer::getFullDataAvailable(WrappingBuffer *wrappingBuffer) {
+    fifo_frames_t framesAvailable = mFifo->getFullFramesAvailable();
+    fifo_frames_t startIndex = mFifo->getReadIndex();
+    fillWrappingBuffer(wrappingBuffer, framesAvailable, startIndex);
+}
+
+void FifoBuffer::getEmptyRoomAvailable(WrappingBuffer *wrappingBuffer) {
+    fifo_frames_t framesAvailable = mFifo->getEmptyFramesAvailable();
+    fifo_frames_t startIndex = mFifo->getWriteIndex();
+    fillWrappingBuffer(wrappingBuffer, framesAvailable, startIndex);
+}
+
+fifo_frames_t FifoBuffer::read(void *buffer, fifo_frames_t numFrames) {
+    WrappingBuffer wrappingBuffer;
+    uint8_t *destination = (uint8_t *) buffer;
+    fifo_frames_t framesLeft = numFrames;
+
+    getFullDataAvailable(&wrappingBuffer);
+
+    // Read data in one or two parts.
+    int partIndex = 0;
+    while (framesLeft > 0 && partIndex < WrappingBuffer::SIZE) {
+        fifo_frames_t framesToRead = framesLeft;
+        fifo_frames_t framesAvailable = wrappingBuffer.numFrames[partIndex];
+        if (framesAvailable > 0) {
+            if (framesToRead > framesAvailable) {
+                framesToRead = framesAvailable;
+            }
+            int32_t numBytes = convertFramesToBytes(framesToRead);
+            memcpy(destination, wrappingBuffer.data[partIndex], numBytes);
+
+            destination += numBytes;
+            framesLeft -= framesToRead;
+        } else {
+            break;
+        }
+        partIndex++;
+    }
+    fifo_frames_t framesRead = numFrames - framesLeft;
+    mFifo->advanceReadIndex(framesRead);
+    return framesRead;
+}
+
+fifo_frames_t FifoBuffer::write(const void *buffer, fifo_frames_t numFrames) {
+    WrappingBuffer wrappingBuffer;
+    uint8_t *source = (uint8_t *) buffer;
+    fifo_frames_t framesLeft = numFrames;
+
+    getEmptyRoomAvailable(&wrappingBuffer);
+
+    // Read data in one or two parts.
+    int partIndex = 0;
+    while (framesLeft > 0 && partIndex < WrappingBuffer::SIZE) {
+        fifo_frames_t framesToWrite = framesLeft;
+        fifo_frames_t framesAvailable = wrappingBuffer.numFrames[partIndex];
+        if (framesAvailable > 0) {
+            if (framesToWrite > framesAvailable) {
+                framesToWrite = framesAvailable;
+            }
+            int32_t numBytes = convertFramesToBytes(framesToWrite);
+            memcpy(wrappingBuffer.data[partIndex], source, numBytes);
+
+            source += numBytes;
+            framesLeft -= framesToWrite;
+        } else {
+            break;
+        }
+        partIndex++;
+    }
+    fifo_frames_t framesWritten = numFrames - framesLeft;
+    mFifo->advanceWriteIndex(framesWritten);
+    return framesWritten;
+}
+
+fifo_frames_t FifoBuffer::readNow(void *buffer, fifo_frames_t numFrames) {
+    mLastReadSize = numFrames;
+    fifo_frames_t framesLeft = numFrames;
+    fifo_frames_t framesRead = read(buffer, numFrames);
+    framesLeft -= framesRead;
+    mFramesReadCount += framesRead;
+    mFramesUnderrunCount += framesLeft;
+    // Zero out any samples we could not set.
+    if (framesLeft > 0) {
+        mUnderrunCount++;
+        int32_t bytesToZero = convertFramesToBytes(framesLeft);
+        memset(buffer, 0, bytesToZero);
+    }
+
+    return framesRead;
+}
+
+fifo_frames_t FifoBuffer::getThreshold() {
+    return mFifo->getThreshold();
+}
+
+void FifoBuffer::setThreshold(fifo_frames_t threshold) {
+    mFifo->setThreshold(threshold);
+}
+
+fifo_frames_t FifoBuffer::getBufferCapacityInFrames() {
+    return mFifo->getCapacity();
+}
+
diff --git a/media/libaaudio/src/fifo/FifoBuffer.h b/media/libaaudio/src/fifo/FifoBuffer.h
new file mode 100644
index 0000000..2b262a1
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoBuffer.h
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FIFO_FIFO_BUFFER_H
+#define FIFO_FIFO_BUFFER_H
+
+#include <stdint.h>
+
+#include "FifoControllerBase.h"
+
+namespace android {
+
+/**
+ * Structure that represents a region in a circular buffer that might be at the
+ * end of the array and split in two.
+ */
+struct WrappingBuffer {
+    enum {
+        SIZE = 2
+    };
+    void *data[SIZE];
+    int32_t numFrames[SIZE];
+};
+
+class FifoBuffer {
+public:
+    FifoBuffer(int32_t bytesPerFrame, fifo_frames_t capacityInFrames);
+
+    FifoBuffer(int32_t bytesPerFrame,
+               fifo_frames_t capacityInFrames,
+               fifo_counter_t *readCounterAddress,
+               fifo_counter_t *writeCounterAddress,
+               void *dataStorageAddress);
+
+    ~FifoBuffer();
+
+    int32_t convertFramesToBytes(fifo_frames_t frames);
+
+    fifo_frames_t read(void *destination, fifo_frames_t framesToRead);
+
+    fifo_frames_t write(const void *source, fifo_frames_t framesToWrite);
+
+    fifo_frames_t getThreshold();
+
+    void setThreshold(fifo_frames_t threshold);
+
+    fifo_frames_t getBufferCapacityInFrames();
+
+    /**
+     * Return pointer to available full frames in data1 and set size in numFrames1.
+     * if the data is split across the end of the FIFO then set data2 and numFrames2.
+     * Other wise set them to null
+     * @param wrappingBuffer
+     */
+    void getFullDataAvailable(WrappingBuffer *wrappingBuffer);
+
+    /**
+     * Return pointer to available empty frames in data1 and set size in numFrames1.
+     * if the room is split across the end of the FIFO then set data2 and numFrames2.
+     * Other wise set them to null
+     * @param wrappingBuffer
+     */
+    void getEmptyRoomAvailable(WrappingBuffer *wrappingBuffer);
+
+    /**
+     * Copy data from the FIFO into the buffer.
+     * @param buffer
+     * @param numFrames
+     * @return
+     */
+    fifo_frames_t readNow(void *buffer, fifo_frames_t numFrames);
+
+    int64_t getNextReadTime(int32_t frameRate);
+
+    int32_t getUnderrunCount() const { return mUnderrunCount; }
+
+    FifoControllerBase *getFifoControllerBase() { return mFifo; }
+
+    int32_t getBytesPerFrame() {
+        return mBytesPerFrame;
+    }
+
+    fifo_counter_t getReadCounter() {
+        return mFifo->getReadCounter();
+    }
+
+    void setReadCounter(fifo_counter_t n) {
+        mFifo->setReadCounter(n);
+    }
+
+    fifo_counter_t getWriteCounter() {
+        return mFifo->getWriteCounter();
+    }
+
+    void setWriteCounter(fifo_counter_t n) {
+        mFifo->setWriteCounter(n);
+    }
+
+private:
+
+    void fillWrappingBuffer(WrappingBuffer *wrappingBuffer,
+                            int32_t framesAvailable, int32_t startIndex);
+
+    const fifo_frames_t mFrameCapacity;
+    const int32_t mBytesPerFrame;
+    uint8_t *mStorage;
+    bool mStorageOwned; // did this object allocate the storage?
+    FifoControllerBase *mFifo;
+    fifo_counter_t mFramesReadCount;
+    fifo_counter_t mFramesUnderrunCount;
+    int32_t mUnderrunCount; // need? just use frames
+    int32_t mLastReadSize;
+};
+
+}  // android
+
+#endif //FIFO_FIFO_BUFFER_H
diff --git a/media/libaaudio/src/fifo/FifoController.h b/media/libaaudio/src/fifo/FifoController.h
new file mode 100644
index 0000000..79d98a1
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoController.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FIFO_FIFO_CONTROLLER_H
+#define FIFO_FIFO_CONTROLLER_H
+
+#include <stdint.h>
+#include <atomic>
+
+#include "FifoControllerBase.h"
+
+namespace android {
+
+/**
+ * A FIFO with counters contained in the class.
+ */
+class FifoController : public FifoControllerBase
+{
+public:
+    FifoController(fifo_counter_t bufferSize, fifo_counter_t threshold)
+    : FifoControllerBase(bufferSize, threshold)
+    , mReadCounter(0)
+    , mWriteCounter(0)
+    {}
+
+    virtual ~FifoController() {}
+
+    // TODO review use of memory barriers, probably incorrect
+    virtual fifo_counter_t getReadCounter() override {
+        return mReadCounter.load(std::memory_order_acquire);
+    }
+    virtual void setReadCounter(fifo_counter_t n) override {
+        mReadCounter.store(n, std::memory_order_release);
+    }
+    virtual fifo_counter_t getWriteCounter() override {
+        return mWriteCounter.load(std::memory_order_acquire);
+    }
+    virtual void setWriteCounter(fifo_counter_t n) override {
+        mWriteCounter.store(n, std::memory_order_release);
+    }
+
+private:
+    std::atomic<fifo_counter_t> mReadCounter;
+    std::atomic<fifo_counter_t> mWriteCounter;
+};
+
+}  // android
+
+#endif //FIFO_FIFO_CONTROLLER_H
diff --git a/media/libaaudio/src/fifo/FifoControllerBase.cpp b/media/libaaudio/src/fifo/FifoControllerBase.cpp
new file mode 100644
index 0000000..14a2be1
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoControllerBase.cpp
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "FifoControllerBase"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include "FifoControllerBase.h"
+
+using namespace android;  // TODO just import names needed
+
+FifoControllerBase::FifoControllerBase(fifo_frames_t capacity, fifo_frames_t threshold)
+        : mCapacity(capacity)
+        , mThreshold(threshold)
+{
+}
+
+FifoControllerBase::~FifoControllerBase() {
+}
+
+fifo_frames_t FifoControllerBase::getFullFramesAvailable() {
+    return (fifo_frames_t) (getWriteCounter() - getReadCounter());
+}
+
+fifo_frames_t FifoControllerBase::getReadIndex() {
+    // % works with non-power of two sizes
+    return (fifo_frames_t) (getReadCounter() % mCapacity);
+}
+
+void FifoControllerBase::advanceReadIndex(fifo_frames_t numFrames) {
+    setReadCounter(getReadCounter() + numFrames);
+}
+
+fifo_frames_t FifoControllerBase::getEmptyFramesAvailable() {
+    return (int32_t)(mThreshold - getFullFramesAvailable());
+}
+
+fifo_frames_t FifoControllerBase::getWriteIndex() {
+    // % works with non-power of two sizes
+    return (fifo_frames_t) (getWriteCounter() % mCapacity);
+}
+
+void FifoControllerBase::advanceWriteIndex(fifo_frames_t numFrames) {
+    setWriteCounter(getWriteCounter() + numFrames);
+}
+
+void FifoControllerBase::setThreshold(fifo_frames_t threshold) {
+    mThreshold = threshold;
+}
diff --git a/media/libaaudio/src/fifo/FifoControllerBase.h b/media/libaaudio/src/fifo/FifoControllerBase.h
new file mode 100644
index 0000000..64af777
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoControllerBase.h
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FIFO_FIFO_CONTROLLER_BASE_H
+#define FIFO_FIFO_CONTROLLER_BASE_H
+
+#include <stdint.h>
+
+namespace android {
+
+typedef int64_t fifo_counter_t;
+typedef int32_t fifo_frames_t;
+
+/**
+ * Manage the read/write indices of a circular buffer.
+ *
+ * The caller is responsible for reading and writing the actual data.
+ * Note that the span of available frames may not be contiguous. They
+ * may wrap around from the end to the beginning of the buffer. In that
+ * case the data must be read or written in at least two blocks of frames.
+ *
+ */
+class FifoControllerBase {
+
+public:
+    /**
+     * Constructor for FifoControllerBase
+     * @param capacity Total size of the circular buffer in frames.
+     * @param threshold Number of frames to fill. Must be less than capacity.
+     */
+    FifoControllerBase(fifo_frames_t capacity, fifo_frames_t threshold);
+
+    virtual ~FifoControllerBase();
+
+    // Abstract methods to be implemented in subclasses.
+    /**
+     * @return Counter used by the reader of the FIFO.
+     */
+    virtual fifo_counter_t getReadCounter() = 0;
+
+    /**
+     * This is normally only used internally.
+     * @param count Number of frames that have been read.
+     */
+    virtual void setReadCounter(fifo_counter_t count) = 0;
+
+    /**
+     * @return Counter used by the reader of the FIFO.
+     */
+    virtual fifo_counter_t getWriteCounter() = 0;
+
+    /**
+     * This is normally only used internally.
+     * @param count Number of frames that have been read.
+     */
+    virtual void setWriteCounter(fifo_counter_t count) = 0;
+
+    /**
+     * This may be negative if an unthrottled reader has read beyond the available data.
+     * @return number of valid frames available to read. Never read more than this.
+     */
+    fifo_frames_t getFullFramesAvailable();
+
+    /**
+     * The index in a circular buffer of the next frame to read.
+     */
+    fifo_frames_t getReadIndex();
+
+    /**
+     * @param numFrames number of frames to advance the read index
+     */
+    void advanceReadIndex(fifo_frames_t numFrames);
+
+    /**
+     * @return number of frames that can be written. Never write more than this.
+     */
+    fifo_frames_t getEmptyFramesAvailable();
+
+    /**
+     * The index in a circular buffer of the next frame to write.
+     */
+    fifo_frames_t getWriteIndex();
+
+    /**
+     * @param numFrames number of frames to advance the write index
+     */
+    void advanceWriteIndex(fifo_frames_t numFrames);
+
+    /**
+     * You can request that the buffer not be filled above a maximum
+     * number of frames.
+     * @param threshold effective size of the buffer
+     */
+    void setThreshold(fifo_frames_t threshold);
+
+    fifo_frames_t getThreshold() const {
+        return mThreshold;
+    }
+
+    fifo_frames_t getCapacity() const {
+        return mCapacity;
+    }
+
+
+private:
+    fifo_frames_t mCapacity;
+    fifo_frames_t mThreshold;
+};
+
+}  // android
+
+#endif // FIFO_FIFO_CONTROLLER_BASE_H
diff --git a/media/libaaudio/src/fifo/FifoControllerIndirect.h b/media/libaaudio/src/fifo/FifoControllerIndirect.h
new file mode 100644
index 0000000..5832d9c
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoControllerIndirect.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FIFO_FIFO_CONTROLLER_INDIRECT_H
+#define FIFO_FIFO_CONTROLLER_INDIRECT_H
+
+#include <stdint.h>
+#include <atomic>
+
+#include "FifoControllerBase.h"
+
+namespace android {
+
+/**
+ * A FifoControllerBase with counters external to the class.
+ *
+ * The actual copunters may be stored in separate regions of shared memory
+ * with different access rights.
+ */
+class FifoControllerIndirect : public FifoControllerBase {
+
+public:
+    FifoControllerIndirect(fifo_frames_t capacity,
+                           fifo_frames_t threshold,
+                           fifo_counter_t * readCounterAddress,
+                           fifo_counter_t * writeCounterAddress)
+        : FifoControllerBase(capacity, threshold)
+        , mReadCounterAddress((std::atomic<fifo_counter_t> *) readCounterAddress)
+        , mWriteCounterAddress((std::atomic<fifo_counter_t> *) writeCounterAddress)
+    {
+        setReadCounter(0);
+        setWriteCounter(0);
+    }
+    virtual ~FifoControllerIndirect() {};
+
+    // TODO review use of memory barriers, probably incorrect
+    virtual fifo_counter_t getReadCounter() override {
+        return mReadCounterAddress->load(std::memory_order_acquire);
+    }
+
+    virtual void setReadCounter(fifo_counter_t count) override {
+        mReadCounterAddress->store(count, std::memory_order_release);
+    }
+
+    virtual fifo_counter_t getWriteCounter() override {
+        return mWriteCounterAddress->load(std::memory_order_acquire);
+    }
+
+    virtual void setWriteCounter(fifo_counter_t count) override {
+        mWriteCounterAddress->store(count, std::memory_order_release);
+    }
+
+private:
+    std::atomic<fifo_counter_t> * mReadCounterAddress;
+    std::atomic<fifo_counter_t> * mWriteCounterAddress;
+};
+
+}  // android
+
+#endif //FIFO_FIFO_CONTROLLER_INDIRECT_H
diff --git a/media/libaaudio/src/fifo/README.md b/media/libaaudio/src/fifo/README.md
new file mode 100644
index 0000000..5d0c471
--- /dev/null
+++ b/media/libaaudio/src/fifo/README.md
@@ -0,0 +1,9 @@
+Simple atomic FIFO for passing data between threads or processes.
+This does not require mutexes.
+
+One thread modifies the readCounter and the other thread modifies the writeCounter.
+
+TODO The internal low-level implementation might be merged in some form with audio_utils fifo
+and/or FMQ [after confirming that requirements are met].
+The higher-levels parts related to AAudio use of the FIFO such as API, fds, relative
+location of indices and data buffer, mapping, allocation of memmory will probably be kept as-is.
diff --git a/media/libaaudio/src/legacy/AAudioLegacy.h b/media/libaaudio/src/legacy/AAudioLegacy.h
new file mode 100644
index 0000000..2ceb7d4
--- /dev/null
+++ b/media/libaaudio/src/legacy/AAudioLegacy.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_LEGACY_H
+#define AAUDIO_LEGACY_H
+
+#include <stdint.h>
+#include <aaudio/AAudio.h>
+
+/**
+ * Common code for legacy classes.
+ */
+
+/* AudioTrack uses a 32-bit frame counter that can wrap around in about a day. */
+typedef uint32_t aaudio_wrapping_frames_t;
+
+#endif /* AAUDIO_LEGACY_H */
diff --git a/media/libaaudio/src/legacy/AudioStreamLegacy.cpp b/media/libaaudio/src/legacy/AudioStreamLegacy.cpp
new file mode 100644
index 0000000..dd5e3c0
--- /dev/null
+++ b/media/libaaudio/src/legacy/AudioStreamLegacy.cpp
@@ -0,0 +1,160 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioStreamLegacy"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <utils/String16.h>
+#include <media/AudioTrack.h>
+#include <aaudio/AAudio.h>
+
+#include "core/AudioStream.h"
+#include "legacy/AudioStreamLegacy.h"
+
+using namespace android;
+using namespace aaudio;
+
+AudioStreamLegacy::AudioStreamLegacy()
+        : AudioStream(), mDeviceCallback(new StreamDeviceCallback(this)) {
+}
+
+AudioStreamLegacy::~AudioStreamLegacy() {
+}
+
+// Called from AudioTrack.cpp or AudioRecord.cpp
+static void AudioStreamLegacy_callback(int event, void* userData, void *info) {
+    AudioStreamLegacy *streamLegacy = (AudioStreamLegacy *) userData;
+    streamLegacy->processCallback(event, info);
+}
+
+aaudio_legacy_callback_t AudioStreamLegacy::getLegacyCallback() {
+    return AudioStreamLegacy_callback;
+}
+
+// Implement FixedBlockProcessor
+int32_t AudioStreamLegacy::onProcessFixedBlock(uint8_t *buffer, int32_t numBytes) {
+    int32_t frameCount = numBytes / getBytesPerFrame();
+    // Call using the AAudio callback interface.
+    AAudioStream_dataCallback appCallback = getDataCallbackProc();
+    return (*appCallback)(
+            (AAudioStream *) this,
+            getDataCallbackUserData(),
+            buffer,
+            frameCount);
+}
+
+void AudioStreamLegacy::processCallbackCommon(aaudio_callback_operation_t opcode, void *info) {
+    aaudio_data_callback_result_t callbackResult;
+
+    if (!mCallbackEnabled.load()) {
+        return;
+    }
+
+    switch (opcode) {
+        case AAUDIO_CALLBACK_OPERATION_PROCESS_DATA: {
+            if (getState() != AAUDIO_STREAM_STATE_DISCONNECTED) {
+                // Note that this code assumes an AudioTrack::Buffer is the same as
+                // AudioRecord::Buffer
+                // TODO define our own AudioBuffer and pass it from the subclasses.
+                AudioTrack::Buffer *audioBuffer = static_cast<AudioTrack::Buffer *>(info);
+                if (audioBuffer->frameCount == 0) return;
+
+                // If the caller specified an exact size then use a block size adapter.
+                if (mBlockAdapter != nullptr) {
+                    int32_t byteCount = audioBuffer->frameCount * getBytesPerFrame();
+                    callbackResult = mBlockAdapter->processVariableBlock(
+                            (uint8_t *) audioBuffer->raw, byteCount);
+                } else {
+                    // Call using the AAudio callback interface.
+                    callbackResult = (*getDataCallbackProc())(
+                            (AAudioStream *) this,
+                            getDataCallbackUserData(),
+                            audioBuffer->raw,
+                            audioBuffer->frameCount
+                            );
+                }
+                if (callbackResult == AAUDIO_CALLBACK_RESULT_CONTINUE) {
+                    audioBuffer->size = audioBuffer->frameCount * getBytesPerFrame();
+                    incrementClientFrameCounter(audioBuffer->frameCount);
+                } else {
+                    audioBuffer->size = 0;
+                }
+                break;
+            }
+        }
+        /// FALL THROUGH
+
+            // Stream got rerouted so we disconnect.
+        case AAUDIO_CALLBACK_OPERATION_DISCONNECTED: {
+            setState(AAUDIO_STREAM_STATE_DISCONNECTED);
+            ALOGD("processCallbackCommon() stream disconnected");
+            if (getErrorCallbackProc() != nullptr) {
+                (*getErrorCallbackProc())(
+                        (AAudioStream *) this,
+                        getErrorCallbackUserData(),
+                        AAUDIO_ERROR_DISCONNECTED
+                        );
+            }
+            mCallbackEnabled.store(false);
+        }
+            break;
+
+        default:
+            break;
+    }
+}
+
+aaudio_result_t AudioStreamLegacy::getBestTimestamp(clockid_t clockId,
+                                                   int64_t *framePosition,
+                                                   int64_t *timeNanoseconds,
+                                                   ExtendedTimestamp *extendedTimestamp) {
+    int timebase;
+    switch (clockId) {
+        case CLOCK_BOOTTIME:
+            timebase = ExtendedTimestamp::TIMEBASE_BOOTTIME;
+            break;
+        case CLOCK_MONOTONIC:
+            timebase = ExtendedTimestamp::TIMEBASE_MONOTONIC;
+            break;
+        default:
+            ALOGE("getTimestamp() - Unrecognized clock type %d", (int) clockId);
+            return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+            break;
+    }
+    status_t status = extendedTimestamp->getBestTimestamp(framePosition, timeNanoseconds, timebase);
+    return AAudioConvert_androidToAAudioResult(status);
+}
+
+void AudioStreamLegacy::onAudioDeviceUpdate(audio_port_handle_t deviceId)
+{
+    ALOGD("onAudioDeviceUpdate() deviceId %d", (int)deviceId);
+    if (getDeviceId() != AAUDIO_UNSPECIFIED && getDeviceId() != deviceId &&
+            getState() != AAUDIO_STREAM_STATE_DISCONNECTED) {
+        setState(AAUDIO_STREAM_STATE_DISCONNECTED);
+        // if we have a data callback and the stream is active, send the error callback from
+        // data callback thread when it sees the DISCONNECTED state
+        if (!isDataCallbackActive() && getErrorCallbackProc() != nullptr) {
+            (*getErrorCallbackProc())(
+                    (AAudioStream *) this,
+                    getErrorCallbackUserData(),
+                    AAUDIO_ERROR_DISCONNECTED
+                    );
+        }
+    }
+    setDeviceId(deviceId);
+}
diff --git a/media/libaaudio/src/legacy/AudioStreamLegacy.h b/media/libaaudio/src/legacy/AudioStreamLegacy.h
new file mode 100644
index 0000000..0ded8e1
--- /dev/null
+++ b/media/libaaudio/src/legacy/AudioStreamLegacy.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LEGACY_AUDIO_STREAM_LEGACY_H
+#define LEGACY_AUDIO_STREAM_LEGACY_H
+
+#include <media/AudioTimestamp.h>
+#include <media/AudioSystem.h>
+
+#include <aaudio/AAudio.h>
+
+#include "AudioStream.h"
+#include "AAudioLegacy.h"
+#include "utility/FixedBlockAdapter.h"
+
+namespace aaudio {
+
+
+typedef void (*aaudio_legacy_callback_t)(int event, void* user, void *info);
+
+enum {
+    /**
+     * Request that the callback function should fill the data buffer of an output stream,
+     * or process the data of an input stream.
+     * The address parameter passed to the callback function will point to a data buffer.
+     * For an input stream, the data is read-only.
+     * The value1 parameter will be the number of frames.
+     * The value2 parameter is reserved and will be set to zero.
+     * The callback should return AAUDIO_CALLBACK_RESULT_CONTINUE or AAUDIO_CALLBACK_RESULT_STOP.
+     */
+            AAUDIO_CALLBACK_OPERATION_PROCESS_DATA,
+
+    /**
+     * Inform the callback function that the stream was disconnected.
+     * The address parameter passed to the callback function will be NULL.
+     * The value1 will be an error code or AAUDIO_OK.
+     * The value2 parameter is reserved and will be set to zero.
+     * The callback return value will be ignored.
+     */
+            AAUDIO_CALLBACK_OPERATION_DISCONNECTED,
+};
+typedef int32_t aaudio_callback_operation_t;
+
+
+class AudioStreamLegacy : public AudioStream, public FixedBlockProcessor {
+public:
+    AudioStreamLegacy();
+
+    virtual ~AudioStreamLegacy();
+
+    aaudio_legacy_callback_t getLegacyCallback();
+
+    // This is public so it can be called from the C callback function.
+    // This is called from the AudioTrack/AudioRecord client.
+    virtual void processCallback(int event, void *info) = 0;
+
+    void processCallbackCommon(aaudio_callback_operation_t opcode, void *info);
+
+    // Implement FixedBlockProcessor
+    int32_t onProcessFixedBlock(uint8_t *buffer, int32_t numBytes) override;
+
+    virtual int64_t incrementClientFrameCounter(int32_t frames)  = 0;
+
+protected:
+
+    class StreamDeviceCallback : public android::AudioSystem::AudioDeviceCallback
+    {
+    public:
+
+        StreamDeviceCallback(AudioStreamLegacy *parent) : mParent(parent) {}
+        virtual ~StreamDeviceCallback() {}
+
+        virtual void onAudioDeviceUpdate(audio_io_handle_t audioIo __unused,
+                                         audio_port_handle_t deviceId) {
+            if (mParent != nullptr) {
+                mParent->onAudioDeviceUpdate(deviceId);
+            }
+        }
+
+        AudioStreamLegacy *mParent;
+    };
+
+    aaudio_result_t getBestTimestamp(clockid_t clockId,
+                                     int64_t *framePosition,
+                                     int64_t *timeNanoseconds,
+                                     android::ExtendedTimestamp *extendedTimestamp);
+
+    void onAudioDeviceUpdate(audio_port_handle_t deviceId);
+
+    void onStart() { mCallbackEnabled.store(true); }
+    void onStop() { mCallbackEnabled.store(false); }
+
+    FixedBlockAdapter         *mBlockAdapter = nullptr;
+    aaudio_wrapping_frames_t   mPositionWhenStarting = 0;
+    int32_t                    mCallbackBufferSize = 0;
+    const android::sp<StreamDeviceCallback>   mDeviceCallback;
+};
+
+} /* namespace aaudio */
+
+#endif //LEGACY_AUDIO_STREAM_LEGACY_H
diff --git a/media/libaaudio/src/legacy/AudioStreamRecord.cpp b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
new file mode 100644
index 0000000..156e83d
--- /dev/null
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
@@ -0,0 +1,344 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <utils/String16.h>
+#include <media/AudioRecord.h>
+#include <aaudio/AAudio.h>
+
+#include "AudioClock.h"
+#include "legacy/AudioStreamLegacy.h"
+#include "legacy/AudioStreamRecord.h"
+#include "utility/FixedBlockWriter.h"
+
+using namespace android;
+using namespace aaudio;
+
+AudioStreamRecord::AudioStreamRecord()
+    : AudioStreamLegacy()
+    , mFixedBlockWriter(*this)
+{
+}
+
+AudioStreamRecord::~AudioStreamRecord()
+{
+    const aaudio_stream_state_t state = getState();
+    bool bad = !(state == AAUDIO_STREAM_STATE_UNINITIALIZED || state == AAUDIO_STREAM_STATE_CLOSED);
+    ALOGE_IF(bad, "stream not closed, in state %d", state);
+}
+
+aaudio_result_t AudioStreamRecord::open(const AudioStreamBuilder& builder)
+{
+    aaudio_result_t result = AAUDIO_OK;
+
+    result = AudioStream::open(builder);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    // Try to create an AudioRecord
+
+    // TODO Support UNSPECIFIED in AudioTrack. For now, use stereo if unspecified.
+    int32_t samplesPerFrame = (getSamplesPerFrame() == AAUDIO_UNSPECIFIED)
+                              ? 2 : getSamplesPerFrame();
+    audio_channel_mask_t channelMask = audio_channel_in_mask_from_count(samplesPerFrame);
+
+    size_t frameCount = (builder.getBufferCapacity() == AAUDIO_UNSPECIFIED) ? 0
+                        : builder.getBufferCapacity();
+
+    // TODO implement an unspecified Android format then use that.
+    audio_format_t format = (getFormat() == AAUDIO_FORMAT_UNSPECIFIED)
+            ? AUDIO_FORMAT_PCM_FLOAT
+            : AAudioConvert_aaudioToAndroidDataFormat(getFormat());
+
+    audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE;
+    aaudio_performance_mode_t perfMode = getPerformanceMode();
+    switch (perfMode) {
+        case AAUDIO_PERFORMANCE_MODE_LOW_LATENCY:
+            flags = (audio_input_flags_t) (AUDIO_INPUT_FLAG_FAST | AUDIO_INPUT_FLAG_RAW);
+            break;
+
+        case AAUDIO_PERFORMANCE_MODE_POWER_SAVING:
+        case AAUDIO_PERFORMANCE_MODE_NONE:
+        default:
+            // No flags.
+            break;
+    }
+
+    uint32_t notificationFrames = 0;
+
+    // Setup the callback if there is one.
+    AudioRecord::callback_t callback = nullptr;
+    void *callbackData = nullptr;
+    AudioRecord::transfer_type streamTransferType = AudioRecord::transfer_type::TRANSFER_SYNC;
+    if (builder.getDataCallbackProc() != nullptr) {
+        streamTransferType = AudioRecord::transfer_type::TRANSFER_CALLBACK;
+        callback = getLegacyCallback();
+        callbackData = this;
+        notificationFrames = builder.getFramesPerDataCallback();
+    }
+    mCallbackBufferSize = builder.getFramesPerDataCallback();
+
+    ALOGD("AudioStreamRecord::open(), request notificationFrames = %u, frameCount = %u",
+          notificationFrames, (uint)frameCount);
+    mAudioRecord = new AudioRecord(
+            mOpPackageName // const String16& opPackageName TODO does not compile
+            );
+    if (getDeviceId() != AAUDIO_UNSPECIFIED) {
+        mAudioRecord->setInputDevice(getDeviceId());
+    }
+    mAudioRecord->set(
+            AUDIO_SOURCE_VOICE_RECOGNITION,
+            getSampleRate(),
+            format,
+            channelMask,
+            frameCount,
+            callback,
+            callbackData,
+            notificationFrames,
+            false /*threadCanCallJava*/,
+            AUDIO_SESSION_ALLOCATE,
+            streamTransferType,
+            flags
+            //   int uid = -1,
+            //   pid_t pid = -1,
+            //   const audio_attributes_t* pAttributes = nullptr
+            );
+
+    // Did we get a valid track?
+    status_t status = mAudioRecord->initCheck();
+    if (status != OK) {
+        close();
+        ALOGE("AudioStreamRecord::open(), initCheck() returned %d", status);
+        return AAudioConvert_androidToAAudioResult(status);
+    }
+
+    // Get the actual rate.
+    setSampleRate(mAudioRecord->getSampleRate());
+    setFormat(AAudioConvert_androidToAAudioDataFormat(mAudioRecord->format()));
+
+    int32_t actualSampleRate = mAudioRecord->getSampleRate();
+    ALOGW_IF(actualSampleRate != getSampleRate(),
+             "AudioStreamRecord::open() sampleRate changed from %d to %d",
+             getSampleRate(), actualSampleRate);
+    setSampleRate(actualSampleRate);
+
+    // We may need to pass the data through a block size adapter to guarantee constant size.
+    if (mCallbackBufferSize != AAUDIO_UNSPECIFIED) {
+        int callbackSizeBytes = getBytesPerFrame() * mCallbackBufferSize;
+        mFixedBlockWriter.open(callbackSizeBytes);
+        mBlockAdapter = &mFixedBlockWriter;
+    } else {
+        mBlockAdapter = nullptr;
+    }
+
+    // Update performance mode based on the actual stream.
+    // For example, if the sample rate does not match native then you won't get a FAST track.
+    audio_input_flags_t actualFlags = mAudioRecord->getFlags();
+    aaudio_performance_mode_t actualPerformanceMode = AAUDIO_PERFORMANCE_MODE_NONE;
+    // FIXME Some platforms do not advertise RAW mode for low latency inputs.
+    if ((actualFlags & (AUDIO_INPUT_FLAG_FAST))
+        == (AUDIO_INPUT_FLAG_FAST)) {
+        actualPerformanceMode = AAUDIO_PERFORMANCE_MODE_LOW_LATENCY;
+    }
+    setPerformanceMode(actualPerformanceMode);
+    // Log warning if we did not get what we asked for.
+    ALOGW_IF(actualFlags != flags,
+             "AudioStreamRecord::open() flags changed from 0x%08X to 0x%08X",
+             flags, actualFlags);
+    ALOGW_IF(actualPerformanceMode != perfMode,
+             "AudioStreamRecord::open() perfMode changed from %d to %d",
+             perfMode, actualPerformanceMode);
+
+    setState(AAUDIO_STREAM_STATE_OPEN);
+    setDeviceId(mAudioRecord->getRoutedDeviceId());
+    mAudioRecord->addAudioDeviceCallback(mDeviceCallback);
+
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamRecord::close()
+{
+    // TODO add close() or release() to AudioRecord API then call it from here
+    if (getState() != AAUDIO_STREAM_STATE_CLOSED) {
+        mAudioRecord.clear();
+        setState(AAUDIO_STREAM_STATE_CLOSED);
+    }
+    mFixedBlockWriter.close();
+    return AAUDIO_OK;
+}
+
+void AudioStreamRecord::processCallback(int event, void *info) {
+    switch (event) {
+        case AudioRecord::EVENT_MORE_DATA:
+            processCallbackCommon(AAUDIO_CALLBACK_OPERATION_PROCESS_DATA, info);
+            break;
+
+            // Stream got rerouted so we disconnect.
+        case AudioRecord::EVENT_NEW_IAUDIORECORD:
+            processCallbackCommon(AAUDIO_CALLBACK_OPERATION_DISCONNECTED, info);
+            break;
+
+        default:
+            break;
+    }
+    return;
+}
+
+aaudio_result_t AudioStreamRecord::requestStart()
+{
+    if (mAudioRecord.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    // Get current position so we can detect when the track is playing.
+    status_t err = mAudioRecord->getPosition(&mPositionWhenStarting);
+    if (err != OK) {
+        return AAudioConvert_androidToAAudioResult(err);
+    }
+
+    err = mAudioRecord->start();
+    if (err != OK) {
+        return AAudioConvert_androidToAAudioResult(err);
+    } else {
+        onStart();
+        setState(AAUDIO_STREAM_STATE_STARTING);
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamRecord::requestPause()
+{
+    // This does not make sense for an input stream.
+    // There is no real difference between pause() and stop().
+    return AAUDIO_ERROR_UNIMPLEMENTED;
+}
+
+aaudio_result_t AudioStreamRecord::requestFlush() {
+    // This does not make sense for an input stream.
+    return AAUDIO_ERROR_UNIMPLEMENTED;
+}
+
+aaudio_result_t AudioStreamRecord::requestStop() {
+    if (mAudioRecord.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    onStop();
+    setState(AAUDIO_STREAM_STATE_STOPPING);
+    incrementFramesWritten(getFramesRead() - getFramesWritten()); // TODO review
+    mAudioRecord->stop();
+    mFramesRead.reset32();
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamRecord::updateStateWhileWaiting()
+{
+    aaudio_result_t result = AAUDIO_OK;
+    aaudio_wrapping_frames_t position;
+    status_t err;
+    switch (getState()) {
+    // TODO add better state visibility to AudioRecord
+    case AAUDIO_STREAM_STATE_STARTING:
+        err = mAudioRecord->getPosition(&position);
+        if (err != OK) {
+            result = AAudioConvert_androidToAAudioResult(err);
+        } else if (position != mPositionWhenStarting) {
+            setState(AAUDIO_STREAM_STATE_STARTED);
+        }
+        break;
+    case AAUDIO_STREAM_STATE_STOPPING:
+        if (mAudioRecord->stopped()) {
+            setState(AAUDIO_STREAM_STATE_STOPPED);
+        }
+        break;
+    default:
+        break;
+    }
+    return result;
+}
+
+aaudio_result_t AudioStreamRecord::read(void *buffer,
+                                      int32_t numFrames,
+                                      int64_t timeoutNanoseconds)
+{
+    int32_t bytesPerFrame = getBytesPerFrame();
+    int32_t numBytes;
+    aaudio_result_t result = AAudioConvert_framesToBytes(numFrames, bytesPerFrame, &numBytes);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    if (getState() == AAUDIO_STREAM_STATE_DISCONNECTED) {
+        return AAUDIO_ERROR_DISCONNECTED;
+    }
+
+    // TODO add timeout to AudioRecord
+    bool blocking = (timeoutNanoseconds > 0);
+    ssize_t bytesRead = mAudioRecord->read(buffer, numBytes, blocking);
+    if (bytesRead == WOULD_BLOCK) {
+        return 0;
+    } else if (bytesRead < 0) {
+        // in this context, a DEAD_OBJECT is more likely to be a disconnect notification due to
+        // AudioRecord invalidation
+        if (bytesRead == DEAD_OBJECT) {
+            setState(AAUDIO_STREAM_STATE_DISCONNECTED);
+            return AAUDIO_ERROR_DISCONNECTED;
+        }
+        return AAudioConvert_androidToAAudioResult(bytesRead);
+    }
+    int32_t framesRead = (int32_t)(bytesRead / bytesPerFrame);
+    incrementFramesRead(framesRead);
+    return (aaudio_result_t) framesRead;
+}
+
+aaudio_result_t AudioStreamRecord::setBufferSize(int32_t requestedFrames)
+{
+    return getBufferSize();
+}
+
+int32_t AudioStreamRecord::getBufferSize() const
+{
+    return getBufferCapacity(); // TODO implement in AudioRecord?
+}
+
+int32_t AudioStreamRecord::getBufferCapacity() const
+{
+    return static_cast<int32_t>(mAudioRecord->frameCount());
+}
+
+int32_t AudioStreamRecord::getXRunCount() const
+{
+    return 0; // TODO implement when AudioRecord supports it
+}
+
+int32_t AudioStreamRecord::getFramesPerBurst() const
+{
+    return static_cast<int32_t>(mAudioRecord->getNotificationPeriodInFrames());
+}
+
+aaudio_result_t AudioStreamRecord::getTimestamp(clockid_t clockId,
+                                               int64_t *framePosition,
+                                               int64_t *timeNanoseconds) {
+    ExtendedTimestamp extendedTimestamp;
+    status_t status = mAudioRecord->getTimestamp(&extendedTimestamp);
+    if (status != NO_ERROR) {
+        return AAudioConvert_androidToAAudioResult(status);
+    }
+    return getBestTimestamp(clockId, framePosition, timeNanoseconds, &extendedTimestamp);
+}
diff --git a/media/libaaudio/src/legacy/AudioStreamRecord.h b/media/libaaudio/src/legacy/AudioStreamRecord.h
new file mode 100644
index 0000000..90000fc
--- /dev/null
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LEGACY_AUDIO_STREAM_RECORD_H
+#define LEGACY_AUDIO_STREAM_RECORD_H
+
+#include <media/AudioRecord.h>
+#include <aaudio/AAudio.h>
+
+#include "AudioStreamBuilder.h"
+#include "AudioStream.h"
+#include "AAudioLegacy.h"
+#include "legacy/AudioStreamLegacy.h"
+#include "utility/FixedBlockWriter.h"
+
+namespace aaudio {
+
+/**
+ * Internal stream that uses the legacy AudioRecord path.
+ */
+class AudioStreamRecord : public AudioStreamLegacy {
+public:
+    AudioStreamRecord();
+
+    virtual ~AudioStreamRecord();
+
+    aaudio_result_t open(const AudioStreamBuilder & builder) override;
+    aaudio_result_t close() override;
+
+    aaudio_result_t requestStart() override;
+    aaudio_result_t requestPause() override;
+    aaudio_result_t requestFlush() override;
+    aaudio_result_t requestStop() override;
+
+    virtual aaudio_result_t getTimestamp(clockid_t clockId,
+                                         int64_t *framePosition,
+                                         int64_t *timeNanoseconds) override;
+
+    aaudio_result_t read(void *buffer,
+                             int32_t numFrames,
+                             int64_t timeoutNanoseconds) override;
+
+    aaudio_result_t setBufferSize(int32_t requestedFrames) override;
+
+    int32_t getBufferSize() const override;
+
+    int32_t getBufferCapacity() const override;
+
+    int32_t getXRunCount() const override;
+
+    int32_t getFramesPerBurst() const override;
+
+    aaudio_result_t updateStateWhileWaiting() override;
+
+    aaudio_direction_t getDirection() const override {
+        return AAUDIO_DIRECTION_INPUT;
+    }
+
+    // This is public so it can be called from the C callback function.
+    void processCallback(int event, void *info) override;
+
+    int64_t incrementClientFrameCounter(int32_t frames) override {
+        return incrementFramesRead(frames);
+    }
+
+private:
+    android::sp<android::AudioRecord> mAudioRecord;
+    // adapts between variable sized blocks and fixed size blocks
+    FixedBlockWriter                 mFixedBlockWriter;
+
+    // TODO add 64-bit position reporting to AudioRecord and use it.
+    android::String16                mOpPackageName;
+};
+
+} /* namespace aaudio */
+
+#endif /* LEGACY_AUDIO_STREAM_RECORD_H */
diff --git a/media/libaaudio/src/legacy/AudioStreamTrack.cpp b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
new file mode 100644
index 0000000..7e39908
--- /dev/null
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
@@ -0,0 +1,438 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <media/AudioTrack.h>
+
+#include <aaudio/AAudio.h>
+#include "utility/AudioClock.h"
+#include "legacy/AudioStreamLegacy.h"
+#include "legacy/AudioStreamTrack.h"
+#include "utility/FixedBlockReader.h"
+
+using namespace android;
+using namespace aaudio;
+
+// Arbitrary and somewhat generous number of bursts.
+#define DEFAULT_BURSTS_PER_BUFFER_CAPACITY     8
+
+/*
+ * Create a stream that uses the AudioTrack.
+ */
+AudioStreamTrack::AudioStreamTrack()
+    : AudioStreamLegacy()
+    , mFixedBlockReader(*this)
+{
+}
+
+AudioStreamTrack::~AudioStreamTrack()
+{
+    const aaudio_stream_state_t state = getState();
+    bool bad = !(state == AAUDIO_STREAM_STATE_UNINITIALIZED || state == AAUDIO_STREAM_STATE_CLOSED);
+    ALOGE_IF(bad, "stream not closed, in state %d", state);
+}
+
+aaudio_result_t AudioStreamTrack::open(const AudioStreamBuilder& builder)
+{
+    aaudio_result_t result = AAUDIO_OK;
+
+    result = AudioStream::open(builder);
+    if (result != OK) {
+        return result;
+    }
+
+    // Try to create an AudioTrack
+    // Use stereo if unspecified.
+    int32_t samplesPerFrame = (getSamplesPerFrame() == AAUDIO_UNSPECIFIED)
+                              ? 2 : getSamplesPerFrame();
+    audio_channel_mask_t channelMask = audio_channel_out_mask_from_count(samplesPerFrame);
+
+    audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE;
+    aaudio_performance_mode_t perfMode = getPerformanceMode();
+    switch(perfMode) {
+        case AAUDIO_PERFORMANCE_MODE_LOW_LATENCY:
+            // Bypass the normal mixer and go straight to the FAST mixer.
+            flags = (audio_output_flags_t)(AUDIO_OUTPUT_FLAG_FAST | AUDIO_OUTPUT_FLAG_RAW);
+            break;
+
+        case AAUDIO_PERFORMANCE_MODE_POWER_SAVING:
+            // This uses a mixer that wakes up less often than the FAST mixer.
+            flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
+            break;
+
+        case AAUDIO_PERFORMANCE_MODE_NONE:
+        default:
+            // No flags. Use a normal mixer in front of the FAST mixer.
+            break;
+    }
+
+    size_t frameCount = (size_t)builder.getBufferCapacity();
+
+    int32_t notificationFrames = 0;
+
+    audio_format_t format = (getFormat() == AAUDIO_FORMAT_UNSPECIFIED)
+            ? AUDIO_FORMAT_PCM_FLOAT
+            : AAudioConvert_aaudioToAndroidDataFormat(getFormat());
+
+    // Setup the callback if there is one.
+    AudioTrack::callback_t callback = nullptr;
+    void *callbackData = nullptr;
+    // Note that TRANSFER_SYNC does not allow FAST track
+    AudioTrack::transfer_type streamTransferType = AudioTrack::transfer_type::TRANSFER_SYNC;
+    if (builder.getDataCallbackProc() != nullptr) {
+        streamTransferType = AudioTrack::transfer_type::TRANSFER_CALLBACK;
+        callback = getLegacyCallback();
+        callbackData = this;
+
+        // If the total buffer size is unspecified then base the size on the burst size.
+        if (frameCount == 0
+                && ((flags & AUDIO_OUTPUT_FLAG_FAST) != 0)) {
+            // Take advantage of a special trick that allows us to create a buffer
+            // that is some multiple of the burst size.
+            notificationFrames = 0 - DEFAULT_BURSTS_PER_BUFFER_CAPACITY;
+        } else {
+            notificationFrames = builder.getFramesPerDataCallback();
+        }
+    }
+    mCallbackBufferSize = builder.getFramesPerDataCallback();
+
+    ALOGD("AudioStreamTrack::open(), request notificationFrames = %d, frameCount = %u",
+          notificationFrames, (uint)frameCount);
+    mAudioTrack = new AudioTrack();
+    if (getDeviceId() != AAUDIO_UNSPECIFIED) {
+        mAudioTrack->setOutputDevice(getDeviceId());
+    }
+    mAudioTrack->set(
+            (audio_stream_type_t) AUDIO_STREAM_MUSIC,
+            getSampleRate(),
+            format,
+            channelMask,
+            frameCount,
+            flags,
+            callback,
+            callbackData,
+            notificationFrames,
+            0 /*sharedBuffer*/,
+            false /*threadCanCallJava*/,
+            AUDIO_SESSION_ALLOCATE,
+            streamTransferType
+            );
+
+    // Did we get a valid track?
+    status_t status = mAudioTrack->initCheck();
+    if (status != NO_ERROR) {
+        close();
+        ALOGE("AudioStreamTrack::open(), initCheck() returned %d", status);
+        return AAudioConvert_androidToAAudioResult(status);
+    }
+
+    //TrackPlayerBase init
+    init(mAudioTrack.get(), PLAYER_TYPE_AAUDIO, AUDIO_USAGE_MEDIA);
+
+    // Get the actual values from the AudioTrack.
+    setSamplesPerFrame(mAudioTrack->channelCount());
+    aaudio_format_t aaudioFormat =
+            AAudioConvert_androidToAAudioDataFormat(mAudioTrack->format());
+    setFormat(aaudioFormat);
+
+    int32_t actualSampleRate = mAudioTrack->getSampleRate();
+    ALOGW_IF(actualSampleRate != getSampleRate(),
+             "AudioStreamTrack::open() sampleRate changed from %d to %d",
+             getSampleRate(), actualSampleRate);
+    setSampleRate(actualSampleRate);
+
+    // We may need to pass the data through a block size adapter to guarantee constant size.
+    if (mCallbackBufferSize != AAUDIO_UNSPECIFIED) {
+        int callbackSizeBytes = getBytesPerFrame() * mCallbackBufferSize;
+        mFixedBlockReader.open(callbackSizeBytes);
+        mBlockAdapter = &mFixedBlockReader;
+    } else {
+        mBlockAdapter = nullptr;
+    }
+
+    setState(AAUDIO_STREAM_STATE_OPEN);
+    setDeviceId(mAudioTrack->getRoutedDeviceId());
+    mAudioTrack->addAudioDeviceCallback(mDeviceCallback);
+
+    // Update performance mode based on the actual stream.
+    // For example, if the sample rate is not allowed then you won't get a FAST track.
+    audio_output_flags_t actualFlags = mAudioTrack->getFlags();
+    aaudio_performance_mode_t actualPerformanceMode = AAUDIO_PERFORMANCE_MODE_NONE;
+    if ((actualFlags & (AUDIO_OUTPUT_FLAG_FAST | AUDIO_OUTPUT_FLAG_RAW))
+        == (AUDIO_OUTPUT_FLAG_FAST | AUDIO_OUTPUT_FLAG_RAW)) {
+        actualPerformanceMode = AAUDIO_PERFORMANCE_MODE_LOW_LATENCY;
+
+    } else if ((actualFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) {
+        actualPerformanceMode = AAUDIO_PERFORMANCE_MODE_POWER_SAVING;
+    }
+    setPerformanceMode(actualPerformanceMode);
+    // Log warning if we did not get what we asked for.
+    ALOGW_IF(actualFlags != flags,
+             "AudioStreamTrack::open() flags changed from 0x%08X to 0x%08X",
+             flags, actualFlags);
+    ALOGW_IF(actualPerformanceMode != perfMode,
+             "AudioStreamTrack::open() perfMode changed from %d to %d",
+             perfMode, actualPerformanceMode);
+
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::close()
+{
+    if (getState() != AAUDIO_STREAM_STATE_CLOSED) {
+        destroy();
+        setState(AAUDIO_STREAM_STATE_CLOSED);
+    }
+    mFixedBlockReader.close();
+    return AAUDIO_OK;
+}
+
+void AudioStreamTrack::processCallback(int event, void *info) {
+
+    switch (event) {
+        case AudioTrack::EVENT_MORE_DATA:
+            processCallbackCommon(AAUDIO_CALLBACK_OPERATION_PROCESS_DATA, info);
+            break;
+
+            // Stream got rerouted so we disconnect.
+        case AudioTrack::EVENT_NEW_IAUDIOTRACK:
+            processCallbackCommon(AAUDIO_CALLBACK_OPERATION_DISCONNECTED, info);
+            break;
+
+        default:
+            break;
+    }
+    return;
+}
+
+aaudio_result_t AudioStreamTrack::requestStart()
+{
+    std::lock_guard<std::mutex> lock(mStreamMutex);
+
+    if (mAudioTrack.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    // Get current position so we can detect when the track is playing.
+    status_t err = mAudioTrack->getPosition(&mPositionWhenStarting);
+    if (err != OK) {
+        return AAudioConvert_androidToAAudioResult(err);
+    }
+
+    err = startWithStatus();
+    if (err != OK) {
+        return AAudioConvert_androidToAAudioResult(err);
+    } else {
+        onStart();
+        setState(AAUDIO_STREAM_STATE_STARTING);
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::requestPause()
+{
+    std::lock_guard<std::mutex> lock(mStreamMutex);
+
+    if (mAudioTrack.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    } else if (getState() != AAUDIO_STREAM_STATE_STARTING
+            && getState() != AAUDIO_STREAM_STATE_STARTED) {
+        ALOGE("requestPause(), called when state is %s",
+              AAudio_convertStreamStateToText(getState()));
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    onStop();
+    setState(AAUDIO_STREAM_STATE_PAUSING);
+    pause();
+    status_t err = mAudioTrack->getPosition(&mPositionWhenPausing);
+    if (err != OK) {
+        return AAudioConvert_androidToAAudioResult(err);
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::requestFlush() {
+    std::lock_guard<std::mutex> lock(mStreamMutex);
+
+    if (mAudioTrack.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    } else if (getState() != AAUDIO_STREAM_STATE_PAUSED) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    setState(AAUDIO_STREAM_STATE_FLUSHING);
+    incrementFramesRead(getFramesWritten() - getFramesRead());
+    mAudioTrack->flush();
+    mFramesWritten.reset32();
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::requestStop() {
+    std::lock_guard<std::mutex> lock(mStreamMutex);
+
+    if (mAudioTrack.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    onStop();
+    setState(AAUDIO_STREAM_STATE_STOPPING);
+    incrementFramesRead(getFramesWritten() - getFramesRead()); // TODO review
+    stop();
+    mFramesWritten.reset32();
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::updateStateWhileWaiting()
+{
+    status_t err;
+    aaudio_wrapping_frames_t position;
+    switch (getState()) {
+    // TODO add better state visibility to AudioTrack
+    case AAUDIO_STREAM_STATE_STARTING:
+        if (mAudioTrack->hasStarted()) {
+            setState(AAUDIO_STREAM_STATE_STARTED);
+        }
+        break;
+    case AAUDIO_STREAM_STATE_PAUSING:
+        if (mAudioTrack->stopped()) {
+            err = mAudioTrack->getPosition(&position);
+            if (err != OK) {
+                return AAudioConvert_androidToAAudioResult(err);
+            } else if (position == mPositionWhenPausing) {
+                // Has stream really stopped advancing?
+                setState(AAUDIO_STREAM_STATE_PAUSED);
+            }
+            mPositionWhenPausing = position;
+        }
+        break;
+    case AAUDIO_STREAM_STATE_FLUSHING:
+        {
+            err = mAudioTrack->getPosition(&position);
+            if (err != OK) {
+                return AAudioConvert_androidToAAudioResult(err);
+            } else if (position == 0) {
+                // TODO Advance frames read to match written.
+                setState(AAUDIO_STREAM_STATE_FLUSHED);
+            }
+        }
+        break;
+    case AAUDIO_STREAM_STATE_STOPPING:
+        if (mAudioTrack->stopped()) {
+            setState(AAUDIO_STREAM_STATE_STOPPED);
+        }
+        break;
+    default:
+        break;
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::write(const void *buffer,
+                                      int32_t numFrames,
+                                      int64_t timeoutNanoseconds)
+{
+    int32_t bytesPerFrame = getBytesPerFrame();
+    int32_t numBytes;
+    aaudio_result_t result = AAudioConvert_framesToBytes(numFrames, bytesPerFrame, &numBytes);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    if (getState() == AAUDIO_STREAM_STATE_DISCONNECTED) {
+        return AAUDIO_ERROR_DISCONNECTED;
+    }
+
+    // TODO add timeout to AudioTrack
+    bool blocking = timeoutNanoseconds > 0;
+    ssize_t bytesWritten = mAudioTrack->write(buffer, numBytes, blocking);
+    if (bytesWritten == WOULD_BLOCK) {
+        return 0;
+    } else if (bytesWritten < 0) {
+        ALOGE("invalid write, returned %d", (int)bytesWritten);
+        // in this context, a DEAD_OBJECT is more likely to be a disconnect notification due to
+        // AudioTrack invalidation
+        if (bytesWritten == DEAD_OBJECT) {
+            setState(AAUDIO_STREAM_STATE_DISCONNECTED);
+            return AAUDIO_ERROR_DISCONNECTED;
+        }
+        return AAudioConvert_androidToAAudioResult(bytesWritten);
+    }
+    int32_t framesWritten = (int32_t)(bytesWritten / bytesPerFrame);
+    incrementFramesWritten(framesWritten);
+    return framesWritten;
+}
+
+aaudio_result_t AudioStreamTrack::setBufferSize(int32_t requestedFrames)
+{
+    ssize_t result = mAudioTrack->setBufferSizeInFrames(requestedFrames);
+    if (result < 0) {
+        return AAudioConvert_androidToAAudioResult(result);
+    } else {
+        return result;
+    }
+}
+
+int32_t AudioStreamTrack::getBufferSize() const
+{
+    return static_cast<int32_t>(mAudioTrack->getBufferSizeInFrames());
+}
+
+int32_t AudioStreamTrack::getBufferCapacity() const
+{
+    return static_cast<int32_t>(mAudioTrack->frameCount());
+}
+
+int32_t AudioStreamTrack::getXRunCount() const
+{
+    return static_cast<int32_t>(mAudioTrack->getUnderrunCount());
+}
+
+int32_t AudioStreamTrack::getFramesPerBurst() const
+{
+    return static_cast<int32_t>(mAudioTrack->getNotificationPeriodInFrames());
+}
+
+int64_t AudioStreamTrack::getFramesRead() {
+    aaudio_wrapping_frames_t position;
+    status_t result;
+    switch (getState()) {
+    case AAUDIO_STREAM_STATE_STARTING:
+    case AAUDIO_STREAM_STATE_STARTED:
+    case AAUDIO_STREAM_STATE_STOPPING:
+    case AAUDIO_STREAM_STATE_PAUSING:
+    case AAUDIO_STREAM_STATE_PAUSED:
+        result = mAudioTrack->getPosition(&position);
+        if (result == OK) {
+            mFramesRead.update32(position);
+        }
+        break;
+    default:
+        break;
+    }
+    return AudioStream::getFramesRead();
+}
+
+aaudio_result_t AudioStreamTrack::getTimestamp(clockid_t clockId,
+                                     int64_t *framePosition,
+                                     int64_t *timeNanoseconds) {
+    ExtendedTimestamp extendedTimestamp;
+    status_t status = mAudioTrack->getTimestamp(&extendedTimestamp);
+    if (status != NO_ERROR) {
+        return AAudioConvert_androidToAAudioResult(status);
+    }
+    return getBestTimestamp(clockId, framePosition, timeNanoseconds, &extendedTimestamp);
+}
diff --git a/media/libaaudio/src/legacy/AudioStreamTrack.h b/media/libaaudio/src/legacy/AudioStreamTrack.h
new file mode 100644
index 0000000..ff429ea
--- /dev/null
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LEGACY_AUDIO_STREAM_TRACK_H
+#define LEGACY_AUDIO_STREAM_TRACK_H
+
+#include <math.h>
+#include <media/TrackPlayerBase.h>
+#include <aaudio/AAudio.h>
+
+#include "AudioStreamBuilder.h"
+#include "AudioStream.h"
+#include "legacy/AAudioLegacy.h"
+#include "legacy/AudioStreamLegacy.h"
+#include "utility/FixedBlockReader.h"
+
+namespace aaudio {
+
+/**
+ * Internal stream that uses the legacy AudioTrack path.
+ */
+class AudioStreamTrack : public AudioStreamLegacy, public android::TrackPlayerBase {
+public:
+    AudioStreamTrack();
+
+    virtual ~AudioStreamTrack();
+
+
+    aaudio_result_t open(const AudioStreamBuilder & builder) override;
+    aaudio_result_t close() override;
+
+    aaudio_result_t requestStart() override;
+    aaudio_result_t requestPause() override;
+    aaudio_result_t requestFlush() override;
+    aaudio_result_t requestStop() override;
+
+    aaudio_result_t getTimestamp(clockid_t clockId,
+                                       int64_t *framePosition,
+                                       int64_t *timeNanoseconds) override;
+
+    aaudio_result_t write(const void *buffer,
+                             int32_t numFrames,
+                             int64_t timeoutNanoseconds) override;
+
+    aaudio_result_t setBufferSize(int32_t requestedFrames) override;
+    int32_t getBufferSize() const override;
+    int32_t getBufferCapacity() const override;
+    int32_t getFramesPerBurst()const  override;
+    int32_t getXRunCount() const override;
+
+    int64_t getFramesRead() override;
+
+    aaudio_direction_t getDirection() const override {
+        return AAUDIO_DIRECTION_OUTPUT;
+    }
+
+    aaudio_result_t updateStateWhileWaiting() override;
+
+    // This is public so it can be called from the C callback function.
+    void processCallback(int event, void *info) override;
+
+    int64_t incrementClientFrameCounter(int32_t frames) override {
+        return incrementFramesWritten(frames);
+    }
+
+private:
+
+    // adapts between variable sized blocks and fixed size blocks
+    FixedBlockReader                 mFixedBlockReader;
+
+    // TODO add 64-bit position reporting to AudioRecord and use it.
+    aaudio_wrapping_frames_t         mPositionWhenStarting = 0;
+    aaudio_wrapping_frames_t         mPositionWhenPausing = 0;
+};
+
+} /* namespace aaudio */
+
+#endif /* LEGACY_AUDIO_STREAM_TRACK_H */
diff --git a/media/libaaudio/src/legacy/README.md b/media/libaaudio/src/legacy/README.md
new file mode 100644
index 0000000..8805915
--- /dev/null
+++ b/media/libaaudio/src/legacy/README.md
@@ -0,0 +1,2 @@
+The legacy folder contains the classes that implement AAudio AudioStream on top of
+Android AudioTrack and AudioRecord.
diff --git a/media/libaaudio/src/utility/AAudioUtilities.cpp b/media/libaaudio/src/utility/AAudioUtilities.cpp
new file mode 100644
index 0000000..164784d
--- /dev/null
+++ b/media/libaaudio/src/utility/AAudioUtilities.cpp
@@ -0,0 +1,373 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <cutils/properties.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <utils/Errors.h>
+
+#include "aaudio/AAudio.h"
+#include <aaudio/AAudioTesting.h>
+
+#include "utility/AAudioUtilities.h"
+
+using namespace android;
+
+// This is 3 dB, (10^(3/20)), to match the maximum headroom in AudioTrack for float data.
+// It is designed to allow occasional transient peaks.
+#define MAX_HEADROOM (1.41253754f)
+#define MIN_HEADROOM (0 - MAX_HEADROOM)
+
+int32_t AAudioConvert_formatToSizeInBytes(aaudio_format_t format) {
+    int32_t size = AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    switch (format) {
+        case AAUDIO_FORMAT_PCM_I16:
+            size = sizeof(int16_t);
+            break;
+        case AAUDIO_FORMAT_PCM_FLOAT:
+            size = sizeof(float);
+            break;
+        default:
+            break;
+    }
+    return size;
+}
+
+
+// TODO expose and call clamp16_from_float function in primitives.h
+static inline int16_t clamp16_from_float(float f) {
+    /* Offset is used to expand the valid range of [-1.0, 1.0) into the 16 lsbs of the
+     * floating point significand. The normal shift is 3<<22, but the -15 offset
+     * is used to multiply by 32768.
+     */
+    static const float offset = (float)(3 << (22 - 15));
+    /* zero = (0x10f << 22) =  0x43c00000 (not directly used) */
+    static const int32_t limneg = (0x10f << 22) /*zero*/ - 32768; /* 0x43bf8000 */
+    static const int32_t limpos = (0x10f << 22) /*zero*/ + 32767; /* 0x43c07fff */
+
+    union {
+        float f;
+        int32_t i;
+    } u;
+
+    u.f = f + offset; /* recenter valid range */
+    /* Now the valid range is represented as integers between [limneg, limpos].
+     * Clamp using the fact that float representation (as an integer) is an ordered set.
+     */
+    if (u.i < limneg)
+        u.i = -32768;
+    else if (u.i > limpos)
+        u.i = 32767;
+    return u.i; /* Return lower 16 bits, the part of interest in the significand. */
+}
+
+// Same but without clipping.
+// Convert -1.0f to +1.0f to -32768 to +32767
+static inline int16_t floatToInt16(float f) {
+    static const float offset = (float)(3 << (22 - 15));
+    union {
+        float f;
+        int32_t i;
+    } u;
+    u.f = f + offset; /* recenter valid range */
+    return u.i; /* Return lower 16 bits, the part of interest in the significand. */
+}
+
+static float clipAndClampFloatToPcm16(float sample, float scaler) {
+    // Clip to valid range of a float sample to prevent excessive volume.
+    if (sample > MAX_HEADROOM) sample = MAX_HEADROOM;
+    else if (sample < MIN_HEADROOM) sample = MIN_HEADROOM;
+
+    // Scale and convert to a short.
+    float fval = sample * scaler;
+    return clamp16_from_float(fval);
+}
+
+void AAudioConvert_floatToPcm16(const float *source,
+                                int16_t *destination,
+                                int32_t numSamples,
+                                float amplitude) {
+    float scaler = amplitude;
+    for (int i = 0; i < numSamples; i++) {
+        float sample = *source++;
+        *destination++ = clipAndClampFloatToPcm16(sample, scaler);
+    }
+}
+
+void AAudioConvert_floatToPcm16(const float *source,
+                                int16_t *destination,
+                                int32_t numFrames,
+                                int32_t samplesPerFrame,
+                                float amplitude1,
+                                float amplitude2) {
+    float scaler = amplitude1;
+    // divide by numFrames so that we almost reach amplitude2
+    float delta = (amplitude2 - amplitude1) / numFrames;
+    for (int frameIndex = 0; frameIndex < numFrames; frameIndex++) {
+        for (int sampleIndex = 0; sampleIndex < samplesPerFrame; sampleIndex++) {
+            float sample = *source++;
+            *destination++ = clipAndClampFloatToPcm16(sample, scaler);
+        }
+        scaler += delta;
+    }
+}
+
+#define SHORT_SCALE  32768
+
+void AAudioConvert_pcm16ToFloat(const int16_t *source,
+                                float *destination,
+                                int32_t numSamples,
+                                float amplitude) {
+    float scaler = amplitude / SHORT_SCALE;
+    for (int i = 0; i < numSamples; i++) {
+        destination[i] = source[i] * scaler;
+    }
+}
+
+// This code assumes amplitude1 and amplitude2 are between 0.0 and 1.0
+void AAudioConvert_pcm16ToFloat(const int16_t *source,
+                                float *destination,
+                                int32_t numFrames,
+                                int32_t samplesPerFrame,
+                                float amplitude1,
+                                float amplitude2) {
+    float scaler = amplitude1 / SHORT_SCALE;
+    float delta = (amplitude2 - amplitude1) / (SHORT_SCALE * (float) numFrames);
+    for (int frameIndex = 0; frameIndex < numFrames; frameIndex++) {
+        for (int sampleIndex = 0; sampleIndex < samplesPerFrame; sampleIndex++) {
+            *destination++ = *source++ * scaler;
+        }
+        scaler += delta;
+    }
+}
+
+// This code assumes amplitude1 and amplitude2 are between 0.0 and 1.0
+void AAudio_linearRamp(const float *source,
+                       float *destination,
+                       int32_t numFrames,
+                       int32_t samplesPerFrame,
+                       float amplitude1,
+                       float amplitude2) {
+    float scaler = amplitude1;
+    float delta = (amplitude2 - amplitude1) / numFrames;
+    for (int frameIndex = 0; frameIndex < numFrames; frameIndex++) {
+        for (int sampleIndex = 0; sampleIndex < samplesPerFrame; sampleIndex++) {
+            float sample = *source++;
+
+            // Clip to valid range of a float sample to prevent excessive volume.
+            if (sample > MAX_HEADROOM) sample = MAX_HEADROOM;
+            else if (sample < MIN_HEADROOM) sample = MIN_HEADROOM;
+
+            *destination++ = sample * scaler;
+        }
+        scaler += delta;
+    }
+}
+
+// This code assumes amplitude1 and amplitude2 are between 0.0 and 1.0
+void AAudio_linearRamp(const int16_t *source,
+                       int16_t *destination,
+                       int32_t numFrames,
+                       int32_t samplesPerFrame,
+                       float amplitude1,
+                       float amplitude2) {
+    float scaler = amplitude1 / SHORT_SCALE;
+    float delta = (amplitude2 - amplitude1) / (SHORT_SCALE * (float) numFrames);
+    for (int frameIndex = 0; frameIndex < numFrames; frameIndex++) {
+        for (int sampleIndex = 0; sampleIndex < samplesPerFrame; sampleIndex++) {
+            // No need to clip because int16_t range is inherently limited.
+            float sample =  *source++ * scaler;
+            *destination++ =  floatToInt16(sample);
+        }
+        scaler += delta;
+    }
+}
+
+status_t AAudioConvert_aaudioToAndroidStatus(aaudio_result_t result) {
+    // This covers the case for AAUDIO_OK and for positive results.
+    if (result >= 0) {
+        return result;
+    }
+    status_t status;
+    switch (result) {
+    case AAUDIO_ERROR_DISCONNECTED:
+    case AAUDIO_ERROR_INVALID_HANDLE:
+        status = DEAD_OBJECT;
+        break;
+    case AAUDIO_ERROR_INVALID_STATE:
+        status = INVALID_OPERATION;
+        break;
+    case AAUDIO_ERROR_INVALID_RATE:
+    case AAUDIO_ERROR_INVALID_FORMAT:
+    case AAUDIO_ERROR_ILLEGAL_ARGUMENT:
+    case AAUDIO_ERROR_OUT_OF_RANGE:
+        status = BAD_VALUE;
+        break;
+    case AAUDIO_ERROR_WOULD_BLOCK:
+        status = WOULD_BLOCK;
+        break;
+    case AAUDIO_ERROR_NULL:
+        status = UNEXPECTED_NULL;
+        break;
+    // TODO translate these result codes
+    case AAUDIO_ERROR_INTERNAL:
+    case AAUDIO_ERROR_UNIMPLEMENTED:
+    case AAUDIO_ERROR_UNAVAILABLE:
+    case AAUDIO_ERROR_NO_FREE_HANDLES:
+    case AAUDIO_ERROR_NO_MEMORY:
+    case AAUDIO_ERROR_TIMEOUT:
+    case AAUDIO_ERROR_NO_SERVICE:
+    default:
+        status = UNKNOWN_ERROR;
+        break;
+    }
+    return status;
+}
+
+aaudio_result_t AAudioConvert_androidToAAudioResult(status_t status) {
+    // This covers the case for OK and for positive result.
+    if (status >= 0) {
+        return status;
+    }
+    aaudio_result_t result;
+    switch (status) {
+    case BAD_TYPE:
+        result = AAUDIO_ERROR_INVALID_HANDLE;
+        break;
+    case DEAD_OBJECT:
+        result = AAUDIO_ERROR_NO_SERVICE;
+        break;
+    case INVALID_OPERATION:
+        result = AAUDIO_ERROR_INVALID_STATE;
+        break;
+        case UNEXPECTED_NULL:
+            result = AAUDIO_ERROR_NULL;
+            break;
+        case BAD_VALUE:
+            result = AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+            break;
+    case WOULD_BLOCK:
+        result = AAUDIO_ERROR_WOULD_BLOCK;
+        break;
+    default:
+        result = AAUDIO_ERROR_INTERNAL;
+        break;
+    }
+    return result;
+}
+
+audio_format_t AAudioConvert_aaudioToAndroidDataFormat(aaudio_format_t aaudioFormat) {
+    audio_format_t androidFormat;
+    switch (aaudioFormat) {
+    case AAUDIO_FORMAT_PCM_I16:
+        androidFormat = AUDIO_FORMAT_PCM_16_BIT;
+        break;
+    case AAUDIO_FORMAT_PCM_FLOAT:
+        androidFormat = AUDIO_FORMAT_PCM_FLOAT;
+        break;
+    default:
+        androidFormat = AUDIO_FORMAT_DEFAULT;
+        ALOGE("AAudioConvert_aaudioToAndroidDataFormat 0x%08X unrecognized", aaudioFormat);
+        break;
+    }
+    return androidFormat;
+}
+
+aaudio_format_t AAudioConvert_androidToAAudioDataFormat(audio_format_t androidFormat) {
+    aaudio_format_t aaudioFormat = AAUDIO_FORMAT_INVALID;
+    switch (androidFormat) {
+    case AUDIO_FORMAT_PCM_16_BIT:
+        aaudioFormat = AAUDIO_FORMAT_PCM_I16;
+        break;
+    case AUDIO_FORMAT_PCM_FLOAT:
+        aaudioFormat = AAUDIO_FORMAT_PCM_FLOAT;
+        break;
+    default:
+        aaudioFormat = AAUDIO_FORMAT_INVALID;
+        ALOGE("AAudioConvert_androidToAAudioDataFormat 0x%08X unrecognized", androidFormat);
+        break;
+    }
+    return aaudioFormat;
+}
+
+int32_t AAudioConvert_framesToBytes(int32_t numFrames,
+                                            int32_t bytesPerFrame,
+                                            int32_t *sizeInBytes) {
+    // TODO implement more elegantly
+    const int32_t maxChannels = 256; // ridiculously large
+    const int32_t maxBytesPerFrame = maxChannels * sizeof(float);
+    // Prevent overflow by limiting multiplicands.
+    if (bytesPerFrame > maxBytesPerFrame || numFrames > (0x3FFFFFFF / maxBytesPerFrame)) {
+        ALOGE("size overflow, numFrames = %d, frameSize = %zd", numFrames, bytesPerFrame);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+    *sizeInBytes = numFrames * bytesPerFrame;
+    return AAUDIO_OK;
+}
+
+static int32_t AAudioProperty_getMMapProperty(const char *propName,
+                                              int32_t defaultValue,
+                                              const char * caller) {
+    int32_t prop = property_get_int32(propName, defaultValue);
+    switch (prop) {
+        case AAUDIO_UNSPECIFIED:
+        case AAUDIO_POLICY_NEVER:
+        case AAUDIO_POLICY_ALWAYS:
+        case AAUDIO_POLICY_AUTO:
+            break;
+        default:
+            ALOGE("%s: invalid = %d", caller, prop);
+            prop = defaultValue;
+            break;
+    }
+    return prop;
+}
+
+int32_t AAudioProperty_getMMapPolicy() {
+    return AAudioProperty_getMMapProperty(AAUDIO_PROP_MMAP_POLICY,
+                                          AAUDIO_UNSPECIFIED, __func__);
+}
+
+int32_t AAudioProperty_getMMapExclusivePolicy() {
+    return AAudioProperty_getMMapProperty(AAUDIO_PROP_MMAP_EXCLUSIVE_POLICY,
+                                          AAUDIO_UNSPECIFIED, __func__);
+}
+
+int32_t AAudioProperty_getMixerBursts() {
+    const int32_t defaultBursts = 2; // arbitrary, use 2 for double buffered
+    const int32_t maxBursts = 1024; // arbitrary
+    int32_t prop = property_get_int32(AAUDIO_PROP_MIXER_BURSTS, defaultBursts);
+    if (prop < 1 || prop > maxBursts) {
+        ALOGE("AAudioProperty_getMixerBursts: invalid = %d", prop);
+        prop = defaultBursts;
+    }
+    return prop;
+}
+
+int32_t AAudioProperty_getHardwareBurstMinMicros() {
+    const int32_t defaultMicros = 1000; // arbitrary
+    const int32_t maxMicros = 1000 * 1000; // arbitrary
+    int32_t prop = property_get_int32(AAUDIO_PROP_HW_BURST_MIN_USEC, defaultMicros);
+    if (prop < 1 || prop > maxMicros) {
+        ALOGE("AAudioProperty_getHardwareBurstMinMicros: invalid = %d", prop);
+        prop = defaultMicros;
+    }
+    return prop;
+}
diff --git a/media/libaaudio/src/utility/AAudioUtilities.h b/media/libaaudio/src/utility/AAudioUtilities.h
new file mode 100644
index 0000000..f894bc0
--- /dev/null
+++ b/media/libaaudio/src/utility/AAudioUtilities.h
@@ -0,0 +1,214 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTILITY_AAUDIO_UTILITIES_H
+#define UTILITY_AAUDIO_UTILITIES_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <hardware/audio.h>
+
+#include "aaudio/AAudio.h"
+
+/**
+ * Convert an AAudio result into the closest matching Android status.
+ */
+android::status_t AAudioConvert_aaudioToAndroidStatus(aaudio_result_t result);
+
+/**
+ * Convert an Android status into the closest matching AAudio result.
+ */
+aaudio_result_t AAudioConvert_androidToAAudioResult(android::status_t status);
+
+/**
+ * Convert an array of floats to an array of int16_t.
+ *
+ * @param source
+ * @param destination
+ * @param numSamples number of values in the array
+ * @param amplitude level between 0.0 and 1.0
+ */
+void AAudioConvert_floatToPcm16(const float *source,
+                                int16_t *destination,
+                                int32_t numSamples,
+                                float amplitude);
+
+/**
+ * Convert floats to int16_t and scale by a linear ramp.
+ *
+ * The ramp stops just short of reaching amplitude2 so that the next
+ * ramp can start at amplitude2 without causing a discontinuity.
+ *
+ * @param source
+ * @param destination
+ * @param numFrames
+ * @param samplesPerFrame AKA number of channels
+ * @param amplitude1 level at start of ramp, between 0.0 and 1.0
+ * @param amplitude2 level past end of ramp, between 0.0 and 1.0
+ */
+void AAudioConvert_floatToPcm16(const float *source,
+                                int16_t *destination,
+                                int32_t numFrames,
+                                int32_t samplesPerFrame,
+                                float amplitude1,
+                                float amplitude2);
+
+/**
+ * Convert int16_t array to float array ranging from -1.0 to +1.0.
+ * @param source
+ * @param destination
+ * @param numSamples
+ */
+//void AAudioConvert_pcm16ToFloat(const int16_t *source, int32_t numSamples,
+//                                float *destination);
+
+/**
+ *
+ * Convert int16_t array to float array ranging from +/- amplitude.
+ * @param source
+ * @param destination
+ * @param numSamples
+ * @param amplitude
+ */
+void AAudioConvert_pcm16ToFloat(const int16_t *source,
+                                float *destination,
+                                int32_t numSamples,
+                                float amplitude);
+
+/**
+ * Convert floats to int16_t and scale by a linear ramp.
+ *
+ * The ramp stops just short of reaching amplitude2 so that the next
+ * ramp can start at amplitude2 without causing a discontinuity.
+ *
+ * @param source
+ * @param destination
+ * @param numFrames
+ * @param samplesPerFrame AKA number of channels
+ * @param amplitude1 level at start of ramp, between 0.0 and 1.0
+ * @param amplitude2 level at end of ramp, between 0.0 and 1.0
+ */
+void AAudioConvert_pcm16ToFloat(const int16_t *source,
+                                float *destination,
+                                int32_t numFrames,
+                                int32_t samplesPerFrame,
+                                float amplitude1,
+                                float amplitude2);
+
+/**
+ * Scale floats by a linear ramp.
+ *
+ * The ramp stops just short of reaching amplitude2 so that the next
+ * ramp can start at amplitude2 without causing a discontinuity.
+ *
+ * @param source
+ * @param destination
+ * @param numFrames
+ * @param samplesPerFrame
+ * @param amplitude1
+ * @param amplitude2
+ */
+void AAudio_linearRamp(const float *source,
+                       float *destination,
+                       int32_t numFrames,
+                       int32_t samplesPerFrame,
+                       float amplitude1,
+                       float amplitude2);
+
+/**
+ * Scale int16_t's by a linear ramp.
+ *
+ * The ramp stops just short of reaching amplitude2 so that the next
+ * ramp can start at amplitude2 without causing a discontinuity.
+ *
+ * @param source
+ * @param destination
+ * @param numFrames
+ * @param samplesPerFrame
+ * @param amplitude1
+ * @param amplitude2
+ */
+void AAudio_linearRamp(const int16_t *source,
+                       int16_t *destination,
+                       int32_t numFrames,
+                       int32_t samplesPerFrame,
+                       float amplitude1,
+                       float amplitude2);
+
+/**
+ * Calculate the number of bytes and prevent numeric overflow.
+ * @param numFrames frame count
+ * @param bytesPerFrame size of a frame in bytes
+ * @param sizeInBytes total size in bytes
+ * @return AAUDIO_OK or negative error, eg. AAUDIO_ERROR_OUT_OF_RANGE
+ */
+int32_t AAudioConvert_framesToBytes(int32_t numFrames,
+                                            int32_t bytesPerFrame,
+                                            int32_t *sizeInBytes);
+
+audio_format_t AAudioConvert_aaudioToAndroidDataFormat(aaudio_format_t aaudio_format);
+
+aaudio_format_t AAudioConvert_androidToAAudioDataFormat(audio_format_t format);
+
+/**
+ * @return the size of a sample of the given format in bytes or AAUDIO_ERROR_ILLEGAL_ARGUMENT
+ */
+int32_t AAudioConvert_formatToSizeInBytes(aaudio_format_t format);
+
+
+// Note that this code may be replaced by Settings or by some other system configuration tool.
+
+#define AAUDIO_PROP_MMAP_POLICY           "aaudio.mmap_policy"
+
+/**
+ * Read system property.
+ * @return AAUDIO_UNSPECIFIED, AAUDIO_POLICY_NEVER or AAUDIO_POLICY_AUTO or AAUDIO_POLICY_ALWAYS
+ */
+int32_t AAudioProperty_getMMapPolicy();
+
+#define AAUDIO_PROP_MMAP_EXCLUSIVE_POLICY "aaudio.mmap_exclusive_policy"
+
+/**
+ * Read system property.
+ * @return AAUDIO_UNSPECIFIED, AAUDIO_POLICY_NEVER or AAUDIO_POLICY_AUTO or AAUDIO_POLICY_ALWAYS
+ */
+int32_t AAudioProperty_getMMapExclusivePolicy();
+
+#define AAUDIO_PROP_MIXER_BURSTS           "aaudio.mixer_bursts"
+
+/**
+ * Read system property.
+ * @return number of bursts per mixer cycle
+ */
+int32_t AAudioProperty_getMixerBursts();
+
+#define AAUDIO_PROP_HW_BURST_MIN_USEC      "aaudio.hw_burst_min_usec"
+
+/**
+ * Read system property.
+ * This is handy in case the DMA is bursting too quickly for the CPU to keep up.
+ * For example, there may be a DMA burst every 100 usec but you only
+ * want to feed the MMAP buffer every 2000 usec.
+ *
+ * This will affect the framesPerBurst for an MMAP stream.
+ *
+ * @return minimum number of microseconds for a MMAP HW burst
+ */
+int32_t AAudioProperty_getHardwareBurstMinMicros();
+
+#endif //UTILITY_AAUDIO_UTILITIES_H
diff --git a/media/libaaudio/src/utility/AudioClock.h b/media/libaaudio/src/utility/AudioClock.h
new file mode 100644
index 0000000..43b71b0
--- /dev/null
+++ b/media/libaaudio/src/utility/AudioClock.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTILITY_AUDIO_CLOCK_H
+#define UTILITY_AUDIO_CLOCK_H
+
+#include <stdint.h>
+#include <time.h>
+
+#include <aaudio/AAudio.h>
+
+// Time conversion constants.
+#define AAUDIO_NANOS_PER_MICROSECOND ((int64_t)1000)
+#define AAUDIO_NANOS_PER_MILLISECOND (AAUDIO_NANOS_PER_MICROSECOND * 1000)
+#define AAUDIO_MILLIS_PER_SECOND     1000
+#define AAUDIO_NANOS_PER_SECOND      (AAUDIO_NANOS_PER_MILLISECOND * AAUDIO_MILLIS_PER_SECOND)
+
+class AudioClock {
+public:
+    static int64_t getNanoseconds(clockid_t clockId = CLOCK_MONOTONIC) {
+        struct timespec time;
+        int result = clock_gettime(clockId, &time);
+        if (result < 0) {
+            return -errno;
+        }
+        return (time.tv_sec * AAUDIO_NANOS_PER_SECOND) + time.tv_nsec;
+    }
+
+    /**
+     * Sleep until the specified absolute time.
+     * Return immediately with AAUDIO_ERROR_ILLEGAL_ARGUMENT if a negative
+     * nanoTime is specified.
+     *
+     * @param nanoTime time to wake up
+     * @param clockId CLOCK_MONOTONIC is default
+     * @return 0, a negative error, or 1 if the call is interrupted by a signal handler (EINTR)
+     */
+    static int sleepUntilNanoTime(int64_t nanoTime,
+                                  clockid_t clockId = CLOCK_MONOTONIC) {
+        if (nanoTime > 0) {
+            struct timespec time;
+            time.tv_sec = nanoTime / AAUDIO_NANOS_PER_SECOND;
+            // Calculate the fractional nanoseconds. Avoids expensive % operation.
+            time.tv_nsec = nanoTime - (time.tv_sec * AAUDIO_NANOS_PER_SECOND);
+            int err = clock_nanosleep(clockId, TIMER_ABSTIME, &time, nullptr);
+            switch (err) {
+            case EINTR:
+                return 1;
+            case 0:
+                return 0;
+            default:
+                // Subtract because clock_nanosleep() returns a positive error number!
+                return 0 - err;
+            }
+        } else {
+            return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+        }
+    }
+
+    /**
+     * Sleep for the specified number of relative nanoseconds in real-time.
+     * Return immediately with 0 if a negative nanoseconds is specified.
+     *
+     * @param nanoseconds time to sleep
+     * @param clockId CLOCK_MONOTONIC is default
+     * @return 0, a negative error, or 1 if the call is interrupted by a signal handler (EINTR)
+     */
+    static int sleepForNanos(int64_t nanoseconds, clockid_t clockId = CLOCK_MONOTONIC) {
+        if (nanoseconds > 0) {
+            struct timespec time;
+            time.tv_sec = nanoseconds / AAUDIO_NANOS_PER_SECOND;
+            // Calculate the fractional nanoseconds. Avoids expensive % operation.
+            time.tv_nsec = nanoseconds - (time.tv_sec * AAUDIO_NANOS_PER_SECOND);
+            const int flags = 0; // documented as relative sleep
+            int err = clock_nanosleep(clockId, flags, &time, nullptr);
+            switch (err) {
+            case EINTR:
+                return 1;
+            case 0:
+                return 0;
+            default:
+                // Subtract because clock_nanosleep() returns a positive error number!
+                return 0 - err;
+            }
+        }
+        return 0;
+    }
+};
+
+
+#endif // UTILITY_AUDIO_CLOCK_H
diff --git a/media/libaaudio/src/utility/FixedBlockAdapter.cpp b/media/libaaudio/src/utility/FixedBlockAdapter.cpp
new file mode 100644
index 0000000..63495f0
--- /dev/null
+++ b/media/libaaudio/src/utility/FixedBlockAdapter.cpp
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+
+#include "FixedBlockAdapter.h"
+
+FixedBlockAdapter::~FixedBlockAdapter() {
+    close();
+}
+
+int32_t FixedBlockAdapter::open(int32_t bytesPerFixedBlock)
+{
+    mSize = bytesPerFixedBlock;
+    mStorage = new uint8_t[bytesPerFixedBlock];
+    mPosition = 0;
+    return 0;
+}
+
+int32_t FixedBlockAdapter::close()
+{
+    delete[] mStorage;
+    mStorage = nullptr;
+    mSize = 0;
+    mPosition = 0;
+    return 0;
+}
diff --git a/media/libaaudio/src/utility/FixedBlockAdapter.h b/media/libaaudio/src/utility/FixedBlockAdapter.h
new file mode 100644
index 0000000..7008b25
--- /dev/null
+++ b/media/libaaudio/src/utility/FixedBlockAdapter.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_FIXED_BLOCK_ADAPTER_H
+#define AAUDIO_FIXED_BLOCK_ADAPTER_H
+
+#include <stdio.h>
+
+/**
+ * Interface for a class that needs fixed-size blocks.
+ */
+class FixedBlockProcessor {
+public:
+    virtual ~FixedBlockProcessor() = default;
+    virtual int32_t onProcessFixedBlock(uint8_t *buffer, int32_t numBytes) = 0;
+};
+
+/**
+ * Base class for a variable-to-fixed-size block adapter.
+ */
+class FixedBlockAdapter
+{
+public:
+    FixedBlockAdapter(FixedBlockProcessor &fixedBlockProcessor)
+    : mFixedBlockProcessor(fixedBlockProcessor) {}
+
+    virtual ~FixedBlockAdapter();
+
+    /**
+     * Allocate internal resources needed for buffering data.
+     */
+    virtual int32_t open(int32_t bytesPerFixedBlock);
+
+    /**
+     * Note that if the fixed-sized blocks must be aligned, then the variable-sized blocks
+     * must have the same alignment.
+     * For example, if the fixed-size blocks must be a multiple of 8, then the variable-sized
+     * blocks must also be a multiple of 8.
+     *
+     * @param buffer
+     * @param numBytes
+     * @return zero if OK or a non-zero code
+     */
+    virtual int32_t processVariableBlock(uint8_t *buffer, int32_t numBytes) = 0;
+
+    /**
+     * Free internal resources.
+     */
+    int32_t close();
+
+protected:
+    FixedBlockProcessor  &mFixedBlockProcessor;
+    uint8_t              *mStorage = nullptr;    // Store data here while assembling buffers.
+    int32_t               mSize = 0;             // Size in bytes of the fixed size buffer.
+    int32_t               mPosition = 0;         // Offset of the last byte read or written.
+};
+
+#endif /* AAUDIO_FIXED_BLOCK_ADAPTER_H */
diff --git a/media/libaaudio/src/utility/FixedBlockReader.cpp b/media/libaaudio/src/utility/FixedBlockReader.cpp
new file mode 100644
index 0000000..21ea70e
--- /dev/null
+++ b/media/libaaudio/src/utility/FixedBlockReader.cpp
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+#include <memory.h>
+
+#include "FixedBlockAdapter.h"
+
+#include "FixedBlockReader.h"
+
+
+FixedBlockReader::FixedBlockReader(FixedBlockProcessor &fixedBlockProcessor)
+    : FixedBlockAdapter(fixedBlockProcessor) {
+    mPosition = mSize;
+}
+
+int32_t FixedBlockReader::open(int32_t bytesPerFixedBlock) {
+    int32_t result = FixedBlockAdapter::open(bytesPerFixedBlock);
+    mPosition = mSize; // Indicate no data in storage.
+    return result;
+}
+
+int32_t FixedBlockReader::readFromStorage(uint8_t *buffer, int32_t numBytes) {
+    int32_t bytesToRead = numBytes;
+    int32_t dataAvailable = mSize - mPosition;
+    if (bytesToRead > dataAvailable) {
+        bytesToRead = dataAvailable;
+    }
+    memcpy(buffer, mStorage + mPosition, bytesToRead);
+    mPosition += bytesToRead;
+    return bytesToRead;
+}
+
+int32_t FixedBlockReader::processVariableBlock(uint8_t *buffer, int32_t numBytes) {
+    int32_t result = 0;
+    int32_t bytesLeft = numBytes;
+    while(bytesLeft > 0 && result == 0) {
+        if (mPosition < mSize) {
+            // Use up bytes currently in storage.
+            int32_t bytesRead = readFromStorage(buffer, bytesLeft);
+            buffer += bytesRead;
+            bytesLeft -= bytesRead;
+        } else if (bytesLeft >= mSize) {
+            // Read through if enough for a complete block.
+            result = mFixedBlockProcessor.onProcessFixedBlock(buffer, mSize);
+            buffer += mSize;
+            bytesLeft -= mSize;
+        } else {
+            // Just need a partial block so we have to use storage.
+            result = mFixedBlockProcessor.onProcessFixedBlock(mStorage, mSize);
+            mPosition = 0;
+        }
+    }
+    return result;
+}
+
diff --git a/media/libaaudio/src/utility/FixedBlockReader.h b/media/libaaudio/src/utility/FixedBlockReader.h
new file mode 100644
index 0000000..128dd52
--- /dev/null
+++ b/media/libaaudio/src/utility/FixedBlockReader.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_FIXED_BLOCK_READER_H
+#define AAUDIO_FIXED_BLOCK_READER_H
+
+#include <stdint.h>
+
+#include "FixedBlockAdapter.h"
+
+/**
+ * Read from a fixed-size block to a variable sized block.
+ *
+ * This can be used to convert a pull data flow from fixed sized buffers to variable sized buffers.
+ * An example would be an audio output callback that reads from the app.
+ */
+class FixedBlockReader : public FixedBlockAdapter
+{
+public:
+    FixedBlockReader(FixedBlockProcessor &fixedBlockProcessor);
+
+    virtual ~FixedBlockReader() = default;
+
+    int32_t open(int32_t bytesPerFixedBlock) override;
+
+    int32_t readFromStorage(uint8_t *buffer, int32_t numBytes);
+
+    /**
+     * Read into a variable sized block.
+     */
+    int32_t processVariableBlock(uint8_t *buffer, int32_t numBytes) override;
+};
+
+
+#endif /* AAUDIO_FIXED_BLOCK_READER_H */
diff --git a/media/libaaudio/src/utility/FixedBlockWriter.cpp b/media/libaaudio/src/utility/FixedBlockWriter.cpp
new file mode 100644
index 0000000..2ce8046
--- /dev/null
+++ b/media/libaaudio/src/utility/FixedBlockWriter.cpp
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+#include <memory.h>
+
+#include "FixedBlockAdapter.h"
+#include "FixedBlockWriter.h"
+
+FixedBlockWriter::FixedBlockWriter(FixedBlockProcessor &fixedBlockProcessor)
+        : FixedBlockAdapter(fixedBlockProcessor) {}
+
+
+int32_t FixedBlockWriter::writeToStorage(uint8_t *buffer, int32_t numBytes) {
+    int32_t bytesToStore = numBytes;
+    int32_t roomAvailable = mSize - mPosition;
+    if (bytesToStore > roomAvailable) {
+        bytesToStore = roomAvailable;
+    }
+    memcpy(mStorage + mPosition, buffer, bytesToStore);
+    mPosition += bytesToStore;
+    return bytesToStore;
+}
+
+int32_t FixedBlockWriter::processVariableBlock(uint8_t *buffer, int32_t numBytes) {
+    int32_t result = 0;
+    int32_t bytesLeft = numBytes;
+
+    // If we already have data in storage then add to it.
+    if (mPosition > 0) {
+        int32_t bytesWritten = writeToStorage(buffer, bytesLeft);
+        buffer += bytesWritten;
+        bytesLeft -= bytesWritten;
+        // If storage full then flush it out
+        if (mPosition == mSize) {
+            result = mFixedBlockProcessor.onProcessFixedBlock(mStorage, mSize);
+            mPosition = 0;
+        }
+    }
+
+    // Write through if enough for a complete block.
+    while(bytesLeft > mSize && result == 0) {
+        result = mFixedBlockProcessor.onProcessFixedBlock(buffer, mSize);
+        buffer += mSize;
+        bytesLeft -= mSize;
+    }
+
+    // Save any remaining partial block for next time.
+    if (bytesLeft > 0) {
+        writeToStorage(buffer, bytesLeft);
+    }
+
+    return result;
+}
diff --git a/media/libaaudio/src/utility/FixedBlockWriter.h b/media/libaaudio/src/utility/FixedBlockWriter.h
new file mode 100644
index 0000000..f1d917c
--- /dev/null
+++ b/media/libaaudio/src/utility/FixedBlockWriter.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_FIXED_BLOCK_WRITER_H
+#define AAUDIO_FIXED_BLOCK_WRITER_H
+
+#include <stdint.h>
+
+#include "FixedBlockAdapter.h"
+
+/**
+ * This can be used to convert a push data flow from variable sized buffers to fixed sized buffers.
+ * An example would be an audio input callback.
+ */
+class FixedBlockWriter : public FixedBlockAdapter
+{
+public:
+    FixedBlockWriter(FixedBlockProcessor &fixedBlockProcessor);
+
+    virtual ~FixedBlockWriter() = default;
+
+    int32_t writeToStorage(uint8_t *buffer, int32_t numBytes);
+
+    /**
+     * Write from a variable sized block.
+     */
+    int32_t processVariableBlock(uint8_t *buffer, int32_t numBytes) override;
+};
+
+#endif /* AAUDIO_FIXED_BLOCK_WRITER_H */
diff --git a/media/libaaudio/src/utility/HandleTracker.cpp b/media/libaaudio/src/utility/HandleTracker.cpp
new file mode 100644
index 0000000..f957234
--- /dev/null
+++ b/media/libaaudio/src/utility/HandleTracker.cpp
@@ -0,0 +1,231 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <assert.h>
+#include <new>
+#include <stdint.h>
+#include <utils/Mutex.h>
+
+#include <aaudio/AAudio.h>
+#include "HandleTracker.h"
+
+using android::Mutex;
+
+// Handle format is: tgggiiii
+// where each letter is 4 bits, t=type, g=generation, i=index
+
+#define TYPE_SIZE           4
+#define GENERATION_SIZE    12
+#define INDEX_SIZE         16
+
+#define GENERATION_INVALID  0
+#define GENERATION_SHIFT    INDEX_SIZE
+
+#define TYPE_MASK           ((1 << TYPE_SIZE) - 1)
+#define GENERATION_MASK     ((1 << GENERATION_SIZE) - 1)
+#define INDEX_MASK          ((1 << INDEX_SIZE) - 1)
+
+#define SLOT_UNAVAILABLE    (-1)
+
+// Error if handle is negative so type is limited to bottom half.
+#define HANDLE_INVALID_TYPE TYPE_MASK
+
+static_assert(HANDLE_TRACKER_MAX_TYPES == (1 << (TYPE_SIZE - 1)),
+    "Mismatch between header and cpp.");
+static_assert(HANDLE_TRACKER_MAX_HANDLES == (1 << (INDEX_SIZE)),
+    "Mismatch between header and cpp.");
+
+HandleTracker::HandleTracker(uint32_t maxHandles)
+        : mMaxHandleCount(maxHandles)
+        , mHandleHeaders(nullptr)
+{
+    assert(maxHandles <= HANDLE_TRACKER_MAX_HANDLES);
+    // Allocate arrays to hold addresses and validation info.
+    mHandleAddresses = (handle_tracker_address_t *)
+            new(std::nothrow) handle_tracker_address_t[maxHandles];
+    if (mHandleAddresses != nullptr) {
+        mHandleHeaders = new(std::nothrow) handle_tracker_header_t[maxHandles];
+
+        if (mHandleHeaders != nullptr) {
+            handle_tracker_header_t initialHeader = buildHeader(0, 1);
+            // Initialize linked list of free nodes. nullptr terminated.
+            for (uint32_t i = 0; i < (maxHandles - 1); i++) {
+                mHandleAddresses[i] = &mHandleAddresses[i + 1]; // point to next node
+                mHandleHeaders[i] = initialHeader;
+            }
+            mNextFreeAddress = &mHandleAddresses[0];
+            mHandleAddresses[maxHandles - 1] = nullptr;
+            mHandleHeaders[maxHandles - 1] = 0;
+        } else {
+            delete[] mHandleAddresses; // so the class appears uninitialized
+            mHandleAddresses = nullptr;
+        }
+    }
+}
+
+HandleTracker::~HandleTracker()
+{
+    Mutex::Autolock _l(mLock);
+    delete[] mHandleAddresses;
+    delete[] mHandleHeaders;
+    mHandleAddresses = nullptr;
+}
+
+bool HandleTracker::isInitialized() const {
+    return mHandleAddresses != nullptr;
+}
+
+handle_tracker_slot_t HandleTracker::allocateSlot_l() {
+    void **allocated = mNextFreeAddress;
+    if (allocated == nullptr) {
+        return SLOT_UNAVAILABLE;
+    }
+    // Remove this slot from the head of the linked list.
+    mNextFreeAddress = (void **) *allocated;
+    return (allocated - mHandleAddresses);
+}
+
+handle_tracker_generation_t HandleTracker::nextGeneration_l(handle_tracker_slot_t index) {
+    handle_tracker_generation_t generation = (mHandleHeaders[index] + 1) & GENERATION_MASK;
+    // Avoid generation zero so that 0x0 is not a valid handle.
+    if (generation == GENERATION_INVALID) {
+        generation++;
+    }
+    return generation;
+}
+
+aaudio_handle_t HandleTracker::put(handle_tracker_type_t type, void *address)
+{
+    if (type < 0 || type >= HANDLE_TRACKER_MAX_TYPES) {
+        return static_cast<aaudio_handle_t>(AAUDIO_ERROR_OUT_OF_RANGE);
+    }
+    if (!isInitialized()) {
+        return static_cast<aaudio_handle_t>(AAUDIO_ERROR_NO_MEMORY);
+    }
+
+    Mutex::Autolock _l(mLock);
+
+    // Find an empty slot.
+    handle_tracker_slot_t index = allocateSlot_l();
+    if (index == SLOT_UNAVAILABLE) {
+        ALOGE("HandleTracker::put() no room for more handles");
+        return static_cast<aaudio_handle_t>(AAUDIO_ERROR_NO_FREE_HANDLES);
+    }
+
+    // Cycle the generation counter so stale handles can be detected.
+    handle_tracker_generation_t generation = nextGeneration_l(index); // reads header table
+    handle_tracker_header_t inputHeader = buildHeader(type, generation);
+
+    // These two writes may need to be observed by other threads or cores during get().
+    mHandleHeaders[index] = inputHeader;
+    mHandleAddresses[index] = address;
+    // TODO use store release to enforce memory order with get()
+
+    // Generate a handle.
+    aaudio_handle_t handle = buildHandle(inputHeader, index);
+
+    ALOGV("HandleTracker::put(%p) returns 0x%08x", address, handle);
+    return handle;
+}
+
+handle_tracker_slot_t HandleTracker::handleToIndex(handle_tracker_type_t type,
+                                                   aaudio_handle_t handle) const
+{
+    // Validate the handle.
+    handle_tracker_slot_t index = extractIndex(handle);
+    if (index >= mMaxHandleCount) {
+        ALOGE("HandleTracker::handleToIndex() invalid handle = 0x%08X", handle);
+        return static_cast<aaudio_handle_t>(AAUDIO_ERROR_INVALID_HANDLE);
+    }
+    handle_tracker_generation_t handleGeneration = extractGeneration(handle);
+    handle_tracker_header_t inputHeader = buildHeader(type, handleGeneration);
+    // We do not need to synchronize this access to mHandleHeaders because it is constant for
+    // the lifetime of the handle.
+    if (inputHeader != mHandleHeaders[index]) {
+        ALOGE("HandleTracker::handleToIndex() inputHeader = 0x%08x != mHandleHeaders[%d] = 0x%08x",
+             inputHeader, index, mHandleHeaders[index]);
+        return static_cast<aaudio_handle_t>(AAUDIO_ERROR_INVALID_HANDLE);
+    }
+    return index;
+}
+
+handle_tracker_address_t HandleTracker::get(handle_tracker_type_t type, aaudio_handle_t handle) const
+{
+    if (!isInitialized()) {
+        return nullptr;
+    }
+    handle_tracker_slot_t index = handleToIndex(type, handle);
+    if (index >= 0) {
+        // We do not need to synchronize this access to mHandleHeaders because this slot
+        // is allocated and, therefore, not part of the linked list of free slots.
+        return mHandleAddresses[index];
+    } else {
+        return nullptr;
+    }
+}
+
+handle_tracker_address_t HandleTracker::remove(handle_tracker_type_t type, aaudio_handle_t handle) {
+    if (!isInitialized()) {
+        return nullptr;
+    }
+
+    Mutex::Autolock _l(mLock);
+
+    handle_tracker_slot_t index = handleToIndex(type,handle);
+    if (index >= 0) {
+        handle_tracker_address_t address = mHandleAddresses[index];
+
+        // Invalidate the header type but preserve the generation count.
+        handle_tracker_generation_t generation = mHandleHeaders[index] & GENERATION_MASK;
+        handle_tracker_header_t inputHeader = buildHeader(
+                (handle_tracker_type_t) HANDLE_INVALID_TYPE, generation);
+        mHandleHeaders[index] = inputHeader;
+
+        // Add this slot to the head of the linked list.
+        mHandleAddresses[index] = mNextFreeAddress;
+        mNextFreeAddress = (handle_tracker_address_t *) &mHandleAddresses[index];
+        return address;
+    } else {
+        return nullptr;
+    }
+}
+
+aaudio_handle_t HandleTracker::buildHandle(handle_tracker_header_t typeGeneration,
+                                         handle_tracker_slot_t index) {
+    return (aaudio_handle_t)((typeGeneration << GENERATION_SHIFT) | (index & INDEX_MASK));
+}
+
+handle_tracker_header_t HandleTracker::buildHeader(handle_tracker_type_t type,
+                                    handle_tracker_generation_t generation)
+{
+    return (handle_tracker_header_t) (((type & TYPE_MASK) << GENERATION_SIZE)
+        | (generation & GENERATION_MASK));
+}
+
+handle_tracker_slot_t HandleTracker::extractIndex(aaudio_handle_t handle)
+{
+    return handle & INDEX_MASK;
+}
+
+handle_tracker_generation_t HandleTracker::extractGeneration(aaudio_handle_t handle)
+{
+    return (handle >> GENERATION_SHIFT) & GENERATION_MASK;
+}
diff --git a/media/libaaudio/src/utility/HandleTracker.h b/media/libaaudio/src/utility/HandleTracker.h
new file mode 100644
index 0000000..23a73ed
--- /dev/null
+++ b/media/libaaudio/src/utility/HandleTracker.h
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTILITY_HANDLE_TRACKER_H
+#define UTILITY_HANDLE_TRACKER_H
+
+#include <stdint.h>
+#include <utils/Mutex.h>
+
+typedef int32_t  aaudio_handle_t;
+typedef int32_t  handle_tracker_type_t;       // what kind of handle
+typedef int32_t  handle_tracker_slot_t;       // index in allocation table
+typedef int32_t  handle_tracker_generation_t; // incremented when slot used
+typedef uint16_t handle_tracker_header_t;     // combines type and generation
+typedef void    *handle_tracker_address_t;    // address of something that is stored here
+
+#define HANDLE_TRACKER_MAX_TYPES    (1 << 3)
+#define HANDLE_TRACKER_MAX_HANDLES  (1 << 16)
+
+/**
+ * Represent Objects using an integer handle that can be used with Java.
+ * This also makes the 'C' ABI more robust.
+ *
+ * Note that this should only be called from a single thread.
+ * If you call it from more than one thread then you need to use your own mutex.
+ */
+class HandleTracker {
+
+public:
+    /**
+     * @param maxHandles cannot exceed HANDLE_TRACKER_MAX_HANDLES
+     */
+    HandleTracker(uint32_t maxHandles = 256);
+    virtual ~HandleTracker();
+
+    /**
+     * Don't use if this returns false;
+     * @return true if the internal allocation succeeded
+     */
+    bool isInitialized() const;
+
+    /**
+     * Store a pointer and return a handle that can be used to retrieve the pointer.
+     *
+     * It is safe to call put() or remove() from multiple threads.
+     *
+     * @param expectedType the type of the object to be tracked
+     * @param address pointer to be converted to a handle
+     * @return a valid handle or a negative error
+     */
+    aaudio_handle_t put(handle_tracker_type_t expectedType, handle_tracker_address_t address);
+
+    /**
+     * Get the original pointer associated with the handle.
+     * The handle will be validated to prevent stale handles from being reused.
+     * Note that the validation is designed to prevent common coding errors and not
+     * to prevent deliberate hacking.
+     *
+     * @param expectedType shouldmatch the type we passed to put()
+     * @param handle to be converted to a pointer
+     * @return address associated with handle or nullptr
+     */
+    handle_tracker_address_t get(handle_tracker_type_t expectedType, aaudio_handle_t handle) const;
+
+    /**
+     * Free up the storage associated with the handle.
+     * Subsequent attempts to use the handle will fail.
+     *
+     * Do NOT remove() a handle while get() is being called for the same handle from another thread.
+     *
+     * @param expectedType shouldmatch the type we passed to put()
+     * @param handle to be removed from tracking
+     * @return address associated with handle or nullptr if not found
+     */
+    handle_tracker_address_t remove(handle_tracker_type_t expectedType, aaudio_handle_t handle);
+
+private:
+    const int32_t               mMaxHandleCount;   // size of array
+    // This address is const after initialization.
+    handle_tracker_address_t  * mHandleAddresses;  // address of objects or a free linked list node
+    // This address is const after initialization.
+    handle_tracker_header_t   * mHandleHeaders;    // combination of type and generation
+    // head of the linked list of free nodes in mHandleAddresses
+    handle_tracker_address_t  * mNextFreeAddress;
+
+    // This Mutex protects the linked list of free nodes.
+    // The list is managed using mHandleAddresses and mNextFreeAddress.
+    // The data in mHandleHeaders is only changed by put() and remove().
+    android::Mutex              mLock;
+
+    /**
+     * Pull slot off of a list of empty slots.
+     * @return index or a negative error
+     */
+    handle_tracker_slot_t allocateSlot_l();
+
+    /**
+     * Increment the generation for the slot, avoiding zero.
+     */
+    handle_tracker_generation_t nextGeneration_l(handle_tracker_slot_t index);
+
+    /**
+     * Validate the handle and return the corresponding index.
+     * @return slot index or a negative error
+     */
+    handle_tracker_slot_t handleToIndex(aaudio_handle_t handle, handle_tracker_type_t type) const;
+
+    /**
+     * Construct a handle from a header and an index.
+     * @param header combination of a type and a generation
+     * @param index slot index returned from allocateSlot
+     * @return handle or a negative error
+     */
+    static aaudio_handle_t buildHandle(handle_tracker_header_t header, handle_tracker_slot_t index);
+
+    /**
+     * Combine a type and a generation field into a header.
+     */
+    static handle_tracker_header_t buildHeader(handle_tracker_type_t type,
+                handle_tracker_generation_t generation);
+
+    /**
+     * Extract the index from a handle.
+     * Does not validate the handle.
+     * @return index associated with a handle
+     */
+    static handle_tracker_slot_t extractIndex(aaudio_handle_t handle);
+
+    /**
+     * Extract the generation from a handle.
+     * Does not validate the handle.
+     * @return generation associated with a handle
+     */
+    static handle_tracker_generation_t extractGeneration(aaudio_handle_t handle);
+
+};
+
+#endif //UTILITY_HANDLE_TRACKER_H
diff --git a/media/libaaudio/src/utility/LinearRamp.cpp b/media/libaaudio/src/utility/LinearRamp.cpp
new file mode 100644
index 0000000..1714bbf
--- /dev/null
+++ b/media/libaaudio/src/utility/LinearRamp.cpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "LinearRamp.h"
+
+bool LinearRamp::isRamping() {
+    float target = mTarget.load();
+    if (target != mLevelTo) {
+        // Update target. Continue from previous level.
+        mLevelTo = target;
+        mRemaining = mLengthInFrames;
+        return true;
+    } else {
+        return mRemaining > 0;
+    }
+}
+
+bool LinearRamp::nextSegment(int32_t frames, float *levelFrom, float *levelTo) {
+    bool ramping = isRamping();
+    *levelFrom = mLevelFrom;
+    if (ramping) {
+        float level;
+        if (frames >= mRemaining) {
+            level = mLevelTo;
+            mRemaining = 0;
+        } else {
+            // Interpolate to a point along the full ramp.
+            level = mLevelFrom + (frames * (mLevelTo - mLevelFrom) / mRemaining);
+            mRemaining -= frames;
+        }
+        mLevelFrom = level; // for next ramp
+        *levelTo = level;
+    } else {
+        *levelTo = mLevelTo;
+    }
+    return ramping;
+}
\ No newline at end of file
diff --git a/media/libaaudio/src/utility/LinearRamp.h b/media/libaaudio/src/utility/LinearRamp.h
new file mode 100644
index 0000000..ff09dce
--- /dev/null
+++ b/media/libaaudio/src/utility/LinearRamp.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_LINEAR_RAMP_H
+#define AAUDIO_LINEAR_RAMP_H
+
+#include <atomic>
+#include <stdint.h>
+
+/**
+ * Generate segments along a linear ramp.
+ * The ramp target can be updated from another thread.
+ * When the target is updated, a new ramp is started from the current position.
+ *
+ * The first ramp starts at 0.0.
+ *
+ */
+class LinearRamp {
+public:
+    LinearRamp() {
+        mTarget.store(1.0f);
+    }
+
+    void setLengthInFrames(int32_t frames) {
+        mLengthInFrames = frames;
+    }
+
+    int32_t getLengthInFrames() {
+        return mLengthInFrames;
+    }
+
+    /**
+     * This may be called by another thread.
+     * @param target
+     */
+    void setTarget(float target) {
+        mTarget.store(target);
+    }
+
+    float getTarget() {
+        return mTarget.load();
+    }
+
+    /**
+     * Force the nextSegment to start from this level.
+     *
+     * WARNING: this can cause a discontinuity if called while the ramp is being used.
+     * Only call this when setting the initial ramp.
+     *
+     * @param level
+     */
+    void forceCurrent(float level) {
+        mLevelFrom = level;
+        mLevelTo = level; // forces a ramp if it does not match target
+    }
+
+    float getCurrent() {
+        return mLevelFrom;
+    }
+
+    /**
+     * Get levels for next ramp segment.
+     *
+     * @param frames number of frames in the segment
+     * @param levelFrom pointer to starting amplitude
+     * @param levelTo pointer to ending amplitude
+     * @return true if ramp is still moving towards the target
+     */
+    bool nextSegment(int32_t frames, float *levelFrom, float *levelTo);
+
+private:
+
+    bool isRamping();
+
+    std::atomic<float>   mTarget;
+
+    int32_t mLengthInFrames  = 48000 / 50; // 20 msec at 48000 Hz
+    int32_t mRemaining       = 0;
+    float   mLevelFrom       = 0.0f;
+    float   mLevelTo         = 0.0f;
+};
+
+
+#endif //AAUDIO_LINEAR_RAMP_H
diff --git a/media/libaaudio/src/utility/MonotonicCounter.h b/media/libaaudio/src/utility/MonotonicCounter.h
new file mode 100644
index 0000000..81d7f89
--- /dev/null
+++ b/media/libaaudio/src/utility/MonotonicCounter.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTILITY_MONOTONIC_COUNTER_H
+#define UTILITY_MONOTONIC_COUNTER_H
+
+#include <stdint.h>
+
+/**
+ * Maintain a 64-bit monotonic counter.
+ * Can be used to track a 32-bit counter that wraps or gets reset.
+ *
+ * Note that this is not atomic and has no interior locks.
+ * A caller will need to provide their own exterior locking
+ * if they need to use it from multiple threads.
+ */
+class MonotonicCounter {
+
+public:
+    MonotonicCounter() {};
+    virtual ~MonotonicCounter() {};
+
+    /**
+     * @return current value of the counter
+     */
+    int64_t get() const {
+        return mCounter64;
+    }
+
+    /**
+     * Advance the counter if delta is positive.
+     * @return current value of the counter
+     */
+    int64_t increment(int64_t delta) {
+        if (delta > 0) {
+            mCounter64 += delta;
+        }
+        return mCounter64;
+    }
+
+    /**
+     * Advance the 64-bit counter if (current32 - previousCurrent32) > 0.
+     * This can be used to convert a 32-bit counter that may be wrapping into
+     * a monotonic 64-bit counter.
+     *
+     * This counter32 should NOT be allowed to advance by more than 0x7FFFFFFF between calls.
+     * Think of the wrapping counter like a sine wave. If the frequency of the signal
+     * is more than half the sampling rate (Nyquist rate) then you cannot measure it properly.
+     * If the counter wraps around every 24 hours then we should measure it with a period
+     * of less than 12 hours.
+     *
+     * @return current value of the 64-bit counter
+     */
+    int64_t update32(int32_t counter32) {
+        int32_t delta = counter32 - mCounter32;
+        // protect against the mCounter64 going backwards
+        if (delta > 0) {
+            mCounter64 += delta;
+            mCounter32 = counter32;
+        }
+        return mCounter64;
+    }
+
+    /**
+     * Reset the stored value of the 32-bit counter.
+     * This is used if your counter32 has been reset to zero.
+     */
+    void reset32() {
+        mCounter32 = 0;
+    }
+
+private:
+    int64_t mCounter64 = 0;
+    int32_t mCounter32 = 0;
+};
+
+
+#endif //UTILITY_MONOTONIC_COUNTER_H
diff --git a/media/libaaudio/src/utility/README.md b/media/libaaudio/src/utility/README.md
new file mode 100644
index 0000000..0ac74ea
--- /dev/null
+++ b/media/libaaudio/src/utility/README.md
@@ -0,0 +1,3 @@
+The utility folder contains things that may be shared between the AAudio client and server.
+They might also be handy outside AAudio.
+They generally do not depend on AAudio functionality.
diff --git a/media/libaaudio/tests/Android.mk b/media/libaaudio/tests/Android.mk
new file mode 100644
index 0000000..afcdebf
--- /dev/null
+++ b/media/libaaudio/tests/Android.mk
@@ -0,0 +1,61 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src
+LOCAL_SRC_FILES:= test_handle_tracker.cpp
+LOCAL_SHARED_LIBRARIES := libaudioclient libaudioutils libbinder \
+                          libcutils liblog libmedia libutils libaudiomanager
+LOCAL_STATIC_LIBRARIES := libaaudio
+LOCAL_MODULE := test_handle_tracker
+include $(BUILD_NATIVE_TEST)
+
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src
+LOCAL_SRC_FILES:= test_marshalling.cpp
+LOCAL_SHARED_LIBRARIES := libaudioclient libaudioutils libbinder \
+                          libcutils liblog libmedia libutils libaudiomanager
+LOCAL_STATIC_LIBRARIES := libaaudio
+LOCAL_MODULE := test_aaudio_marshalling
+include $(BUILD_NATIVE_TEST)
+
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src
+LOCAL_SRC_FILES:= test_block_adapter.cpp
+LOCAL_SHARED_LIBRARIES := libaudioclient libaudioutils libbinder \
+                          libcutils liblog libmedia libutils libaudiomanager
+LOCAL_STATIC_LIBRARIES := libaaudio
+LOCAL_MODULE := test_block_adapter
+include $(BUILD_NATIVE_TEST)
+
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src
+LOCAL_SRC_FILES:= test_linear_ramp.cpp
+LOCAL_SHARED_LIBRARIES := libaudioclient libaudioutils libbinder \
+                          libcutils liblog libmedia libutils libaudiomanager
+LOCAL_STATIC_LIBRARIES := libaaudio
+LOCAL_MODULE := test_linear_ramp
+include $(BUILD_NATIVE_TEST)
+
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src
+LOCAL_SRC_FILES:= test_open_params.cpp
+LOCAL_SHARED_LIBRARIES := libaudioclient libaudioutils libbinder \
+                          libcutils liblog libmedia libutils libaudiomanager
+LOCAL_STATIC_LIBRARIES := libaaudio
+LOCAL_MODULE := test_open_params
+include $(BUILD_NATIVE_TEST)
diff --git a/media/libaaudio/tests/test_block_adapter.cpp b/media/libaaudio/tests/test_block_adapter.cpp
new file mode 100644
index 0000000..a22abb9
--- /dev/null
+++ b/media/libaaudio/tests/test_block_adapter.cpp
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <iostream>
+
+#include <gtest/gtest.h>
+
+#include "utility/FixedBlockAdapter.h"
+#include "utility/FixedBlockWriter.h"
+#include "utility/FixedBlockReader.h"
+
+#define FIXED_BLOCK_SIZE   47
+#define TEST_BUFFER_SIZE   103
+
+// Pass varying sized blocks.
+// Frames contain a sequential index, which are easily checked.
+class TestBlockAdapter {
+public:
+    TestBlockAdapter()
+            : mTestIndex(0), mLastIndex(0) {
+    }
+
+    ~TestBlockAdapter() = default;
+
+    void fillSequence(int32_t *indexBuffer, int32_t frameCount) {
+        ASSERT_LE(frameCount, TEST_BUFFER_SIZE);
+        for (int i = 0; i < frameCount; i++) {
+            indexBuffer[i] = mLastIndex++;
+        }
+    }
+
+    int checkSequence(const int32_t *indexBuffer, int32_t frameCount) {
+        // This is equivalent to calling an output callback.
+        for (int i = 0; i < frameCount; i++) {
+            int32_t expected = mTestIndex++;
+            int32_t actual = indexBuffer[i];
+            EXPECT_EQ(expected, actual);
+            if (actual != expected) {
+                return -1;
+            }
+        }
+        return 0;
+    }
+
+    int32_t            mTestBuffer[TEST_BUFFER_SIZE];
+    int32_t            mTestIndex;
+    int32_t            mLastIndex;
+};
+
+class TestBlockWriter : public TestBlockAdapter, FixedBlockProcessor {
+public:
+    TestBlockWriter()
+            : mFixedBlockWriter(*this) {
+        mFixedBlockWriter.open(sizeof(int32_t) * FIXED_BLOCK_SIZE);
+    }
+
+    ~TestBlockWriter() {
+        mFixedBlockWriter.close();
+    }
+
+    int32_t onProcessFixedBlock(uint8_t *buffer, int32_t numBytes) override {
+        int32_t frameCount = numBytes / sizeof(int32_t);
+        return checkSequence((int32_t *) buffer, frameCount);
+    }
+
+    // Simulate audio input from a variable sized callback.
+    int32_t testInputWrite(int32_t variableCount) {
+        fillSequence(mTestBuffer, variableCount);
+        int32_t sizeBytes = variableCount * sizeof(int32_t);
+        return mFixedBlockWriter.processVariableBlock((uint8_t *) mTestBuffer, sizeBytes);
+    }
+
+private:
+    FixedBlockWriter mFixedBlockWriter;
+};
+
+class TestBlockReader : public TestBlockAdapter, FixedBlockProcessor {
+public:
+    TestBlockReader()
+            : mFixedBlockReader(*this) {
+        mFixedBlockReader.open(sizeof(int32_t) * FIXED_BLOCK_SIZE);
+    }
+
+    ~TestBlockReader() {
+        mFixedBlockReader.close();
+    }
+
+    int32_t onProcessFixedBlock(uint8_t *buffer, int32_t numBytes) override {
+        int32_t frameCount = numBytes / sizeof(int32_t);
+        fillSequence((int32_t *) buffer, frameCount);
+        return 0;
+    }
+
+    // Simulate audio output from a variable sized callback.
+    int32_t testOutputRead(int32_t variableCount) {
+        int32_t sizeBytes = variableCount * sizeof(int32_t);
+        int32_t result = mFixedBlockReader.processVariableBlock((uint8_t *) mTestBuffer, sizeBytes);
+        if (result >= 0) {
+            result = checkSequence((int32_t *)mTestBuffer, variableCount);
+        }
+        return result;
+    }
+
+private:
+    FixedBlockReader   mFixedBlockReader;
+};
+
+
+TEST(test_block_adapter, block_adapter_write) {
+    TestBlockWriter tester;
+    int result = 0;
+    const int numLoops = 1000;
+
+    for (int i = 0; i<numLoops && result == 0; i++) {
+        long r = random();
+        int32_t size = (r % TEST_BUFFER_SIZE);
+        ASSERT_LE(size, TEST_BUFFER_SIZE);
+        ASSERT_GE(size, 0);
+        result = tester.testInputWrite(size);
+    }
+    ASSERT_EQ(0, result);
+}
+
+TEST(test_block_adapter, block_adapter_read) {
+    TestBlockReader tester;
+    int result = 0;
+    const int numLoops = 1000;
+
+    for (int i = 0; i < numLoops && result == 0; i++) {
+        long r = random();
+        int32_t size = (r % TEST_BUFFER_SIZE);
+        ASSERT_LE(size, TEST_BUFFER_SIZE);
+        ASSERT_GE(size, 0);
+        result = tester.testOutputRead(size);
+    }
+    ASSERT_EQ(0, result);
+};
+
diff --git a/media/libaaudio/tests/test_handle_tracker.cpp b/media/libaaudio/tests/test_handle_tracker.cpp
new file mode 100644
index 0000000..c4db47a
--- /dev/null
+++ b/media/libaaudio/tests/test_handle_tracker.cpp
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Unit tests for AAudio Handle Tracker
+
+#include <stdlib.h>
+#include <math.h>
+
+#include <gtest/gtest.h>
+
+#include <aaudio/AAudio.h>
+#include "utility/HandleTracker.h"
+
+// Test adding one address.
+TEST(test_handle_tracker, aaudio_handle_tracker) {
+    const int MAX_HANDLES = 4;
+    HandleTracker tracker(MAX_HANDLES);
+    handle_tracker_type_t type = 3; // arbitrary generic type
+    int data; // something that has an address we can use
+    handle_tracker_address_t found;
+
+    // repeat the test several times to see if it breaks
+    const int SEVERAL = 5; // arbitrary
+    for (int i = 0; i < SEVERAL; i++) {
+        // should fail to find a bogus handle
+        found = tracker.get(type, 0);  // bad handle
+        EXPECT_EQ(nullptr, found);
+
+        // create a valid handle and use it to lookup the object again
+        aaudio_handle_t dataHandle = tracker.put(type, &data);
+        ASSERT_TRUE(dataHandle > 0);
+        found = tracker.get(type, dataHandle);
+        EXPECT_EQ(&data, found);
+        found = tracker.get(type, 0); // bad handle
+        EXPECT_EQ(nullptr, found);
+
+        // wrong type
+        found = tracker.get(type+1, dataHandle);
+        EXPECT_EQ(nullptr, found);
+
+        // remove from storage
+        found = tracker.remove(type, dataHandle);
+        EXPECT_EQ(&data, found);
+        // should fail the second time
+        found = tracker.remove(type, dataHandle);
+        EXPECT_EQ(nullptr, found);
+    }
+}
+
+// Test filling the tracker.
+TEST(test_handle_tracker, aaudio_full_up) {
+    const int MAX_HANDLES = 5;
+    HandleTracker tracker(MAX_HANDLES);
+    handle_tracker_type_t type = 4; // arbitrary generic type
+    int data[MAX_HANDLES];
+    aaudio_handle_t handles[MAX_HANDLES];
+    handle_tracker_address_t found;
+
+    // repeat the test several times to see if it breaks
+    const int SEVERAL = 5; // arbitrary
+    for (int i = 0; i < SEVERAL; i++) {
+        for (int i = 0; i < MAX_HANDLES; i++) {
+            // add a handle
+            handles[i] = tracker.put(type, &data[i]);
+            ASSERT_TRUE(handles[i] > 0);
+            found = tracker.get(type, handles[i]);
+            EXPECT_EQ(&data[i], found);
+        }
+
+        // Now that it is full, try to add one more.
+        aaudio_handle_t handle = tracker.put(type, &data[0]);
+        EXPECT_TRUE(handle < 0);
+
+        for (int i = 0; i < MAX_HANDLES; i++) {
+            // look up each handle
+            found = tracker.get(type, handles[i]);
+            EXPECT_EQ(&data[i], found);
+        }
+
+        // remove one from storage
+        found = tracker.remove(type, handles[2]);
+        EXPECT_EQ(&data[2], found);
+        // now try to look up the same handle and fail
+        found = tracker.get(type, handles[2]);
+        EXPECT_EQ(nullptr, found);
+
+        // add that same one back
+        handle = tracker.put(type, &data[2]);
+        ASSERT_TRUE(handle > 0);
+        found = tracker.get(type, handle);
+        EXPECT_EQ(&data[2], found);
+        // now use a stale handle again with a valid index and fail
+        found = tracker.get(type, handles[2]);
+        EXPECT_EQ(nullptr, found);
+
+        // remove them all
+        handles[2] = handle;
+        for (int i = 0; i < MAX_HANDLES; i++) {
+            // look up each handle
+            found = tracker.remove(type, handles[i]);
+            EXPECT_EQ(&data[i], found);
+        }
+    }
+}
diff --git a/media/libaaudio/tests/test_linear_ramp.cpp b/media/libaaudio/tests/test_linear_ramp.cpp
new file mode 100644
index 0000000..5c53982
--- /dev/null
+++ b/media/libaaudio/tests/test_linear_ramp.cpp
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <iostream>
+
+#include <gtest/gtest.h>
+
+#include "utility/AAudioUtilities.h"
+#include "utility/LinearRamp.h"
+
+
+TEST(test_linear_ramp, linear_ramp_segments) {
+    LinearRamp ramp;
+    const float source[4] = {1.0f, 1.0f, 1.0f, 1.0f };
+    float destination[4] = {1.0f, 1.0f, 1.0f, 1.0f };
+
+    float levelFrom = -1.0f;
+    float levelTo = -1.0f;
+    ramp.setLengthInFrames(8);
+    ramp.setTarget(8.0f);
+
+    ASSERT_EQ(8, ramp.getLengthInFrames());
+
+    bool ramping = ramp.nextSegment(4, &levelFrom, &levelTo);
+    ASSERT_EQ(1, ramping);
+    ASSERT_EQ(0.0f, levelFrom);
+    ASSERT_EQ(4.0f, levelTo);
+
+    AAudio_linearRamp(source, destination, 4, 1, levelFrom, levelTo);
+    ASSERT_EQ(0.0f, destination[0]);
+    ASSERT_EQ(1.0f, destination[1]);
+    ASSERT_EQ(2.0f, destination[2]);
+    ASSERT_EQ(3.0f, destination[3]);
+
+    ramping = ramp.nextSegment(4, &levelFrom, &levelTo);
+    ASSERT_EQ(1, ramping);
+    ASSERT_EQ(4.0f, levelFrom);
+    ASSERT_EQ(8.0f, levelTo);
+
+    AAudio_linearRamp(source, destination, 4, 1, levelFrom, levelTo);
+    ASSERT_EQ(4.0f, destination[0]);
+    ASSERT_EQ(5.0f, destination[1]);
+    ASSERT_EQ(6.0f, destination[2]);
+    ASSERT_EQ(7.0f, destination[3]);
+
+    ramping = ramp.nextSegment(4, &levelFrom, &levelTo);
+    ASSERT_EQ(0, ramping);
+    ASSERT_EQ(8.0f, levelFrom);
+    ASSERT_EQ(8.0f, levelTo);
+
+    AAudio_linearRamp(source, destination, 4, 1, levelFrom, levelTo);
+    ASSERT_EQ(8.0f, destination[0]);
+    ASSERT_EQ(8.0f, destination[1]);
+    ASSERT_EQ(8.0f, destination[2]);
+    ASSERT_EQ(8.0f, destination[3]);
+
+};
+
+
+TEST(test_linear_ramp, linear_ramp_forced) {
+    LinearRamp ramp;
+    const float source[4] = {1.0f, 1.0f, 1.0f, 1.0f };
+    float destination[4] = {1.0f, 1.0f, 1.0f, 1.0f };
+
+    float levelFrom = -1.0f;
+    float levelTo = -1.0f;
+    ramp.setLengthInFrames(4);
+    ramp.setTarget(8.0f);
+    ramp.forceCurrent(4.0f);
+    ASSERT_EQ(4.0f, ramp.getCurrent());
+
+    bool ramping = ramp.nextSegment(4, &levelFrom, &levelTo);
+    ASSERT_EQ(1, ramping);
+    ASSERT_EQ(4.0f, levelFrom);
+    ASSERT_EQ(8.0f, levelTo);
+
+    AAudio_linearRamp(source, destination, 4, 1, levelFrom, levelTo);
+    ASSERT_EQ(4.0f, destination[0]);
+    ASSERT_EQ(5.0f, destination[1]);
+    ASSERT_EQ(6.0f, destination[2]);
+    ASSERT_EQ(7.0f, destination[3]);
+
+    ramping = ramp.nextSegment(4, &levelFrom, &levelTo);
+    ASSERT_EQ(0, ramping);
+    ASSERT_EQ(8.0f, levelFrom);
+    ASSERT_EQ(8.0f, levelTo);
+
+    AAudio_linearRamp(source, destination, 4, 1, levelFrom, levelTo);
+    ASSERT_EQ(8.0f, destination[0]);
+    ASSERT_EQ(8.0f, destination[1]);
+    ASSERT_EQ(8.0f, destination[2]);
+    ASSERT_EQ(8.0f, destination[3]);
+
+};
+
diff --git a/media/libaaudio/tests/test_marshalling.cpp b/media/libaaudio/tests/test_marshalling.cpp
new file mode 100644
index 0000000..79beed6
--- /dev/null
+++ b/media/libaaudio/tests/test_marshalling.cpp
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Unit tests for AAudio Marshalling of RingBuffer information.
+
+#include <stdlib.h>
+#include <math.h>
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+#include <cutils/ashmem.h>
+#include <gtest/gtest.h>
+#include <sys/mman.h>
+
+#include <aaudio/AAudio.h>
+#include <binding/AudioEndpointParcelable.h>
+
+using namespace android;
+using namespace aaudio;
+
+// Test adding one value.
+TEST(test_marshalling, aaudio_one_read_write) {
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    const int arbitraryValue = 235;
+    parcel.writeInt32(arbitraryValue);
+    parcel.setDataPosition(pos);
+    int32_t y;
+    parcel.readInt32(&y);
+    EXPECT_EQ(arbitraryValue, y);
+}
+
+// Test SharedMemoryParcel.
+TEST(test_marshalling, aaudio_shared_memory) {
+    SharedMemoryParcelable sharedMemoryA;
+    SharedMemoryParcelable sharedMemoryB;
+    const size_t memSizeBytes = 840;
+    int fd = ashmem_create_region("TestMarshalling", memSizeBytes);
+    ASSERT_LE(0, fd);
+    sharedMemoryA.setup(fd, memSizeBytes);
+    void *region1;
+    EXPECT_EQ(AAUDIO_OK, sharedMemoryA.resolve(0, 16, &region1)); // fits in region
+    EXPECT_NE(AAUDIO_OK, sharedMemoryA.resolve(-2, 16, &region1)); // offset is negative
+    EXPECT_NE(AAUDIO_OK, sharedMemoryA.resolve(0, memSizeBytes + 8, &region1)); // size too big
+    EXPECT_NE(AAUDIO_OK, sharedMemoryA.resolve(memSizeBytes - 8, 16, &region1)); // goes past the end
+    int32_t *buffer1 = (int32_t *)region1;
+    buffer1[0] = 98735; // arbitrary value
+
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    sharedMemoryA.writeToParcel(&parcel);
+
+    parcel.setDataPosition(pos);
+    sharedMemoryB.readFromParcel(&parcel);
+    EXPECT_EQ(sharedMemoryA.getSizeInBytes(), sharedMemoryB.getSizeInBytes());
+
+    // should see same value at two different addresses
+    void *region2;
+    EXPECT_EQ(AAUDIO_OK, sharedMemoryB.resolve(0, 16, &region2));
+    int32_t *buffer2 = (int32_t *)region2;
+    EXPECT_NE(buffer1, buffer2);
+    EXPECT_EQ(buffer1[0], buffer2[0]);
+}
+
+// Test SharedRegionParcel.
+TEST(test_marshalling, aaudio_shared_region) {
+    SharedMemoryParcelable sharedMemories[2];
+    SharedRegionParcelable sharedRegionA;
+    SharedRegionParcelable sharedRegionB;
+    const size_t memSizeBytes = 840;
+    int fd = ashmem_create_region("TestMarshalling", memSizeBytes);
+    ASSERT_LE(0, fd);
+    sharedMemories[0].setup(fd, memSizeBytes);
+    int32_t regionOffset1 = 32;
+    int32_t regionSize1 = 16;
+    sharedRegionA.setup(0, regionOffset1, regionSize1);
+
+    void *region1;
+    EXPECT_EQ(AAUDIO_OK, sharedRegionA.resolve(sharedMemories, &region1));
+    int32_t *buffer1 = (int32_t *)region1;
+    buffer1[0] = 336677; // arbitrary value
+
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    sharedRegionA.writeToParcel(&parcel);
+
+    parcel.setDataPosition(pos);
+    sharedRegionB.readFromParcel(&parcel);
+
+    // should see same value
+    void *region2;
+    EXPECT_EQ(AAUDIO_OK, sharedRegionB.resolve(sharedMemories, &region2));
+    int32_t *buffer2 = (int32_t *)region2;
+    EXPECT_EQ(buffer1[0], buffer2[0]);
+}
+
+// Test RingBufferParcelable.
+TEST(test_marshalling, aaudio_ring_buffer_parcelable) {
+    SharedMemoryParcelable sharedMemories[2];
+    RingBufferParcelable ringBufferA;
+    RingBufferParcelable ringBufferB;
+
+    const size_t bytesPerFrame = 8;
+    const size_t framesPerBurst = 32;
+    const size_t dataSizeBytes = 2048;
+    const int32_t counterSizeBytes = sizeof(int64_t);
+    const size_t memSizeBytes = dataSizeBytes + (2 * counterSizeBytes);
+
+    int fd = ashmem_create_region("TestMarshalling", memSizeBytes);
+    ASSERT_LE(0, fd);
+    sharedMemories[0].setup(fd, memSizeBytes);
+
+    int32_t sharedMemoryIndex = 0;
+    // arrange indices and data in the shared memory
+    int32_t readOffset = 0;
+    int32_t writeOffset = readOffset + counterSizeBytes;
+    int32_t dataOffset = writeOffset + counterSizeBytes;
+    ringBufferA.setupMemory(sharedMemoryIndex, dataOffset, dataSizeBytes,
+        readOffset, writeOffset, counterSizeBytes);
+    ringBufferA.setFramesPerBurst(framesPerBurst);
+    ringBufferA.setBytesPerFrame(bytesPerFrame);
+    ringBufferA.setCapacityInFrames(dataSizeBytes / bytesPerFrame);
+
+    // setup A
+    RingBufferDescriptor descriptorA;
+    EXPECT_EQ(AAUDIO_OK, ringBufferA.resolve(sharedMemories, &descriptorA));
+    descriptorA.dataAddress[0] = 95;
+    descriptorA.dataAddress[1] = 57;
+    descriptorA.readCounterAddress[0] = 17;
+    descriptorA.writeCounterAddress[0] = 39;
+
+    // write A to parcel
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    ringBufferA.writeToParcel(&parcel);
+
+    // read B from parcel
+    parcel.setDataPosition(pos);
+    ringBufferB.readFromParcel(&parcel);
+
+    RingBufferDescriptor descriptorB;
+    EXPECT_EQ(AAUDIO_OK, ringBufferB.resolve(sharedMemories, &descriptorB));
+
+    // A and B should match
+    EXPECT_EQ(descriptorA.dataAddress[0], descriptorB.dataAddress[0]);
+    EXPECT_EQ(descriptorA.dataAddress[1], descriptorB.dataAddress[1]);
+    EXPECT_EQ(descriptorA.readCounterAddress[0], descriptorB.readCounterAddress[0]);
+    EXPECT_EQ(descriptorA.writeCounterAddress[0], descriptorB.writeCounterAddress[0]);
+
+    EXPECT_EQ(ringBufferA.getFramesPerBurst(), ringBufferB.getFramesPerBurst());
+    EXPECT_EQ(ringBufferA.getBytesPerFrame(), ringBufferB.getBytesPerFrame());
+    EXPECT_EQ(ringBufferA.getCapacityInFrames(), ringBufferB.getCapacityInFrames());
+}
diff --git a/media/libaaudio/tests/test_open_params.cpp b/media/libaaudio/tests/test_open_params.cpp
new file mode 100644
index 0000000..01b8799
--- /dev/null
+++ b/media/libaaudio/tests/test_open_params.cpp
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Play sine waves using AAudio.
+
+#include <stdio.h>
+//#include <stdlib.h>
+//#include <math.h>
+
+#include <android-base/macros.h>
+#include <aaudio/AAudio.h>
+
+#include <gtest/gtest.h>
+
+static const char *getSharingModeText(aaudio_sharing_mode_t mode) {
+    const char *modeText = "unknown";
+    switch (mode) {
+    case AAUDIO_SHARING_MODE_EXCLUSIVE:
+        modeText = "EXCLUSIVE";
+        break;
+    case AAUDIO_SHARING_MODE_SHARED:
+        modeText = "SHARED";
+        break;
+    default:
+        break;
+    }
+    return modeText;
+}
+
+// Callback function that fills the audio output buffer.
+aaudio_data_callback_result_t MyDataCallbackProc(
+        AAudioStream *stream,
+        void *userData,
+        void *audioData,
+        int32_t numFrames
+) {
+    (void) stream;
+    (void) userData;
+    (void) audioData;
+    (void) numFrames;
+    return AAUDIO_CALLBACK_RESULT_CONTINUE;
+}
+
+static void testOpenOptions(aaudio_direction_t direction,
+                            int32_t channelCount,
+                            int32_t sampleRate,
+                            aaudio_format_t format) {
+
+    aaudio_result_t result = AAUDIO_OK;
+
+    int32_t bufferCapacity;
+    int32_t framesPerBurst = 0;
+
+    int32_t actualChannelCount = 0;
+    int32_t actualSampleRate = 0;
+    aaudio_format_t actualDataFormat = AAUDIO_FORMAT_UNSPECIFIED;
+    aaudio_sharing_mode_t actualSharingMode = AAUDIO_SHARING_MODE_SHARED;
+    aaudio_direction_t actualDirection;
+
+    AAudioStreamBuilder *aaudioBuilder = nullptr;
+    AAudioStream *aaudioStream = nullptr;
+
+    printf("TestOpen: dir = %d, chans = %3d, rate = %6d format = %d\n",
+           direction, channelCount, sampleRate, format);
+
+    // Use an AAudioStreamBuilder to contain requested parameters.
+    ASSERT_EQ(AAUDIO_OK, AAudio_createStreamBuilder(&aaudioBuilder));
+
+    // Request stream properties.
+    AAudioStreamBuilder_setDirection(aaudioBuilder, direction);
+    AAudioStreamBuilder_setSampleRate(aaudioBuilder, sampleRate);
+    AAudioStreamBuilder_setChannelCount(aaudioBuilder, channelCount);
+    AAudioStreamBuilder_setFormat(aaudioBuilder, format);
+    AAudioStreamBuilder_setDataCallback(aaudioBuilder, MyDataCallbackProc, nullptr);
+
+    //AAudioStreamBuilder_setPerformanceMode(aaudioBuilder, AAUDIO_PERFORMANCE_MODE_NONE);
+    AAudioStreamBuilder_setPerformanceMode(aaudioBuilder, AAUDIO_PERFORMANCE_MODE_LOW_LATENCY);
+    //AAudioStreamBuilder_setPerformanceMode(aaudioBuilder, AAUDIO_PERFORMANCE_MODE_POWER_SAVING);
+
+    // Create an AAudioStream using the Builder.
+    result = AAudioStreamBuilder_openStream(aaudioBuilder, &aaudioStream);
+    if (result != AAUDIO_OK) {
+        printf("Stream not opened! That may be OK.\n");
+        goto finish;
+    }
+
+    // Check to see what kind of stream we actually got.
+    actualSampleRate = AAudioStream_getSampleRate(aaudioStream);
+    actualChannelCount = AAudioStream_getChannelCount(aaudioStream);
+    actualDataFormat = AAudioStream_getFormat(aaudioStream);
+    actualDirection = AAudioStream_getDirection(aaudioStream);
+
+    printf("          dir = %d, chans = %3d, rate = %6d format = %d\n",
+           direction, actualChannelCount, actualSampleRate, actualDataFormat);
+
+    // If we ask for something specific then we should get that.
+    if (channelCount != AAUDIO_UNSPECIFIED) {
+        EXPECT_EQ(channelCount, actualChannelCount);
+    }
+    if (sampleRate != AAUDIO_UNSPECIFIED) {
+        EXPECT_EQ(sampleRate, actualSampleRate);
+    }
+    if (format != AAUDIO_FORMAT_UNSPECIFIED) {
+        EXPECT_EQ(format, actualDataFormat);
+    }
+    EXPECT_EQ(direction, actualDirection);
+
+    // This is the number of frames that are read in one chunk by a DMA controller
+    // or a DSP or a mixer.
+    framesPerBurst = AAudioStream_getFramesPerBurst(aaudioStream);
+    bufferCapacity = AAudioStream_getBufferCapacityInFrames(aaudioStream);
+    printf("          bufferCapacity = %d, remainder = %d\n",
+           bufferCapacity, bufferCapacity % framesPerBurst);
+
+finish:
+    AAudioStream_close(aaudioStream);
+    AAudioStreamBuilder_delete(aaudioBuilder);
+    printf("          result = %d = %s\n", result, AAudio_convertResultToText(result));
+}
+
+//void foo() { // for tricking the Android Studio formatter
+TEST(test_open_params, aaudio_open_all) {
+    aaudio_direction_t directions[] = {AAUDIO_DIRECTION_OUTPUT, AAUDIO_DIRECTION_INPUT};
+    aaudio_format_t formats[] = {AAUDIO_FORMAT_UNSPECIFIED,
+                                 AAUDIO_FORMAT_PCM_I16, AAUDIO_FORMAT_PCM_FLOAT};
+    int32_t rates[] = {AAUDIO_UNSPECIFIED, 22050, 32000, 44100, 48000, 88200, 96000, 37913, 59132};
+
+    // Make printf print immediately so that debug info is not stuck
+    // in a buffer if we hang or crash.
+    setvbuf(stdout, nullptr, _IONBF, (size_t) 0);
+
+    for (uint dirIndex = 0;dirIndex < arraysize(directions); dirIndex++) {
+        aaudio_direction_t direction = directions[dirIndex];
+        for (int32_t channelCount = 0; channelCount <= 8; channelCount++) {
+            testOpenOptions(direction, channelCount,
+                            AAUDIO_UNSPECIFIED, AAUDIO_FORMAT_UNSPECIFIED);
+        }
+        for (uint i = 0; i < arraysize(rates); i++) {
+            testOpenOptions(direction, AAUDIO_UNSPECIFIED, rates[i], AAUDIO_FORMAT_UNSPECIFIED);
+        }
+        for (uint i = 0; i < arraysize(formats); i++) {
+            testOpenOptions(direction, AAUDIO_UNSPECIFIED, AAUDIO_UNSPECIFIED, formats[i]);
+        }
+    }
+}
diff --git a/media/libaudioclient/Android.bp b/media/libaudioclient/Android.bp
new file mode 100644
index 0000000..d853946
--- /dev/null
+++ b/media/libaudioclient/Android.bp
@@ -0,0 +1,59 @@
+cc_library_headers {
+    name: "libaudioclient_headers",
+    vendor_available: true,
+    export_include_dirs: ["include"],
+}
+
+cc_library_shared {
+    name: "libaudioclient",
+    srcs: [
+        "AudioEffect.cpp",
+        "AudioPolicy.cpp",
+        "AudioRecord.cpp",
+        "AudioSystem.cpp",
+        "AudioTrack.cpp",
+        "AudioTrackShared.cpp",
+        "IAudioFlinger.cpp",
+        "IAudioFlingerClient.cpp",
+        "IAudioPolicyService.cpp",
+        "IAudioPolicyServiceClient.cpp",
+        "IAudioRecord.cpp",
+        "IAudioTrack.cpp",
+        "IEffect.cpp",
+        "IEffectClient.cpp",
+        "ToneGenerator.cpp",
+        "PlayerBase.cpp",
+        "TrackPlayerBase.cpp",
+    ],
+    shared_libs: [
+        "liblog",
+        "libcutils",
+        "libutils",
+        "libbinder",
+        "libdl",
+        "libaudioutils",
+        "libaudiomanager",
+    ],
+    export_shared_lib_headers: ["libbinder"],
+
+    local_include_dirs: ["include/media"],
+    header_libs: ["libaudioclient_headers"],
+    export_header_lib_headers: ["libaudioclient_headers"],
+
+    // for memory heap analysis
+    static_libs: [
+        "libc_malloc_debug_backtrace",
+        "libc_logging",
+    ],
+    cflags: [
+        "-Wall",
+        "-Werror",
+        "-Wno-error=deprecated-declarations",
+    ],
+    sanitize: {
+        misc_undefined : [
+            "unsigned-integer-overflow",
+            "signed-integer-overflow",
+        ],
+    },
+}
diff --git a/media/libaudioclient/AudioEffect.cpp b/media/libaudioclient/AudioEffect.cpp
new file mode 100644
index 0000000..a5f9ab6
--- /dev/null
+++ b/media/libaudioclient/AudioEffect.cpp
@@ -0,0 +1,495 @@
+/*
+**
+** Copyright 2010, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "AudioEffect"
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <limits.h>
+
+#include <private/media/AudioEffectShared.h>
+#include <media/AudioEffect.h>
+
+#include <utils/Log.h>
+#include <binder/IPCThreadState.h>
+
+
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+AudioEffect::AudioEffect(const String16& opPackageName)
+    : mStatus(NO_INIT), mOpPackageName(opPackageName)
+{
+}
+
+
+AudioEffect::AudioEffect(const effect_uuid_t *type,
+                const String16& opPackageName,
+                const effect_uuid_t *uuid,
+                int32_t priority,
+                effect_callback_t cbf,
+                void* user,
+                audio_session_t sessionId,
+                audio_io_handle_t io
+                )
+    : mStatus(NO_INIT), mOpPackageName(opPackageName)
+{
+    mStatus = set(type, uuid, priority, cbf, user, sessionId, io);
+}
+
+AudioEffect::AudioEffect(const char *typeStr,
+                const String16& opPackageName,
+                const char *uuidStr,
+                int32_t priority,
+                effect_callback_t cbf,
+                void* user,
+                audio_session_t sessionId,
+                audio_io_handle_t io
+                )
+    : mStatus(NO_INIT), mOpPackageName(opPackageName)
+{
+    effect_uuid_t type;
+    effect_uuid_t *pType = NULL;
+    effect_uuid_t uuid;
+    effect_uuid_t *pUuid = NULL;
+
+    ALOGV("Constructor string\n - type: %s\n - uuid: %s", typeStr, uuidStr);
+
+    if (typeStr != NULL) {
+        if (stringToGuid(typeStr, &type) == NO_ERROR) {
+            pType = &type;
+        }
+    }
+
+    if (uuidStr != NULL) {
+        if (stringToGuid(uuidStr, &uuid) == NO_ERROR) {
+            pUuid = &uuid;
+        }
+    }
+
+    mStatus = set(pType, pUuid, priority, cbf, user, sessionId, io);
+}
+
+status_t AudioEffect::set(const effect_uuid_t *type,
+                const effect_uuid_t *uuid,
+                int32_t priority,
+                effect_callback_t cbf,
+                void* user,
+                audio_session_t sessionId,
+                audio_io_handle_t io)
+{
+    sp<IEffect> iEffect;
+    sp<IMemory> cblk;
+    int enabled;
+
+    ALOGV("set %p mUserData: %p uuid: %p timeLow %08x", this, user, type, type ? type->timeLow : 0);
+
+    if (mIEffect != 0) {
+        ALOGW("Effect already in use");
+        return INVALID_OPERATION;
+    }
+
+    const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger();
+    if (audioFlinger == 0) {
+        ALOGE("set(): Could not get audioflinger");
+        return NO_INIT;
+    }
+
+    if (type == NULL && uuid == NULL) {
+        ALOGW("Must specify at least type or uuid");
+        return BAD_VALUE;
+    }
+
+    mPriority = priority;
+    mCbf = cbf;
+    mUserData = user;
+    mSessionId = sessionId;
+
+    memset(&mDescriptor, 0, sizeof(effect_descriptor_t));
+    mDescriptor.type = *(type != NULL ? type : EFFECT_UUID_NULL);
+    mDescriptor.uuid = *(uuid != NULL ? uuid : EFFECT_UUID_NULL);
+
+    mIEffectClient = new EffectClient(this);
+    mClientPid = IPCThreadState::self()->getCallingPid();
+
+    iEffect = audioFlinger->createEffect((effect_descriptor_t *)&mDescriptor,
+            mIEffectClient, priority, io, mSessionId, mOpPackageName, mClientPid,
+            &mStatus, &mId, &enabled);
+
+    if (iEffect == 0 || (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS)) {
+        ALOGE("set(): AudioFlinger could not create effect, status: %d", mStatus);
+        if (iEffect == 0) {
+            mStatus = NO_INIT;
+        }
+        return mStatus;
+    }
+
+    mEnabled = (volatile int32_t)enabled;
+
+    cblk = iEffect->getCblk();
+    if (cblk == 0) {
+        mStatus = NO_INIT;
+        ALOGE("Could not get control block");
+        return mStatus;
+    }
+
+    mIEffect = iEffect;
+    mCblkMemory = cblk;
+    mCblk = static_cast<effect_param_cblk_t*>(cblk->pointer());
+    int bufOffset = ((sizeof(effect_param_cblk_t) - 1) / sizeof(int) + 1) * sizeof(int);
+    mCblk->buffer = (uint8_t *)mCblk + bufOffset;
+
+    IInterface::asBinder(iEffect)->linkToDeath(mIEffectClient);
+    ALOGV("set() %p OK effect: %s id: %d status %d enabled %d pid %d", this, mDescriptor.name, mId,
+            mStatus, mEnabled, mClientPid);
+
+    if (mSessionId > AUDIO_SESSION_OUTPUT_MIX) {
+        AudioSystem::acquireAudioSessionId(mSessionId, mClientPid);
+    }
+
+    return mStatus;
+}
+
+
+AudioEffect::~AudioEffect()
+{
+    ALOGV("Destructor %p", this);
+
+    if (mStatus == NO_ERROR || mStatus == ALREADY_EXISTS) {
+        if (mSessionId > AUDIO_SESSION_OUTPUT_MIX) {
+            AudioSystem::releaseAudioSessionId(mSessionId, mClientPid);
+        }
+        if (mIEffect != NULL) {
+            mIEffect->disconnect();
+            IInterface::asBinder(mIEffect)->unlinkToDeath(mIEffectClient);
+        }
+        mIEffect.clear();
+        mCblkMemory.clear();
+        mIEffectClient.clear();
+        IPCThreadState::self()->flushCommands();
+    }
+}
+
+
+status_t AudioEffect::initCheck() const
+{
+    return mStatus;
+}
+
+// -------------------------------------------------------------------------
+
+effect_descriptor_t AudioEffect::descriptor() const
+{
+    return mDescriptor;
+}
+
+bool AudioEffect::getEnabled() const
+{
+    return (mEnabled != 0);
+}
+
+status_t AudioEffect::setEnabled(bool enabled)
+{
+    if (mStatus != NO_ERROR) {
+        return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus;
+    }
+
+    status_t status = NO_ERROR;
+
+    AutoMutex lock(mLock);
+    if (enabled != mEnabled) {
+        if (enabled) {
+            ALOGV("enable %p", this);
+            status = mIEffect->enable();
+        } else {
+            ALOGV("disable %p", this);
+            status = mIEffect->disable();
+        }
+        if (status == NO_ERROR) {
+            mEnabled = enabled;
+        }
+    }
+    return status;
+}
+
+status_t AudioEffect::command(uint32_t cmdCode,
+                              uint32_t cmdSize,
+                              void *cmdData,
+                              uint32_t *replySize,
+                              void *replyData)
+{
+    if (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS) {
+        ALOGV("command() bad status %d", mStatus);
+        return mStatus;
+    }
+
+    if (cmdCode == EFFECT_CMD_ENABLE || cmdCode == EFFECT_CMD_DISABLE) {
+        if (mEnabled == (cmdCode == EFFECT_CMD_ENABLE)) {
+            return NO_ERROR;
+        }
+        if (replySize == NULL || *replySize != sizeof(status_t) || replyData == NULL) {
+            return BAD_VALUE;
+        }
+        mLock.lock();
+    }
+
+    status_t status = mIEffect->command(cmdCode, cmdSize, cmdData, replySize, replyData);
+
+    if (cmdCode == EFFECT_CMD_ENABLE || cmdCode == EFFECT_CMD_DISABLE) {
+        if (status == NO_ERROR) {
+            status = *(status_t *)replyData;
+        }
+        if (status == NO_ERROR) {
+            mEnabled = (cmdCode == EFFECT_CMD_ENABLE);
+        }
+        mLock.unlock();
+    }
+
+    return status;
+}
+
+
+status_t AudioEffect::setParameter(effect_param_t *param)
+{
+    if (mStatus != NO_ERROR) {
+        return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus;
+    }
+
+    if (param == NULL || param->psize == 0 || param->vsize == 0) {
+        return BAD_VALUE;
+    }
+
+    uint32_t size = sizeof(int);
+    uint32_t psize = ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + param->vsize;
+
+    ALOGV("setParameter: param: %d, param2: %d", *(int *)param->data,
+            (param->psize == 8) ? *((int *)param->data + 1): -1);
+
+    return mIEffect->command(EFFECT_CMD_SET_PARAM, sizeof (effect_param_t) + psize, param, &size,
+            &param->status);
+}
+
+status_t AudioEffect::setParameterDeferred(effect_param_t *param)
+{
+    if (mStatus != NO_ERROR) {
+        return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus;
+    }
+
+    if (param == NULL || param->psize == 0 || param->vsize == 0) {
+        return BAD_VALUE;
+    }
+
+    Mutex::Autolock _l(mCblk->lock);
+
+    int psize = ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + param->vsize;
+    int size = ((sizeof(effect_param_t) + psize - 1) / sizeof(int) + 1) * sizeof(int);
+
+    if (mCblk->clientIndex + size > EFFECT_PARAM_BUFFER_SIZE) {
+        return NO_MEMORY;
+    }
+    int *p = (int *)(mCblk->buffer + mCblk->clientIndex);
+    *p++ = size;
+    memcpy(p, param, sizeof(effect_param_t) + psize);
+    mCblk->clientIndex += size;
+
+    return NO_ERROR;
+}
+
+status_t AudioEffect::setParameterCommit()
+{
+    if (mStatus != NO_ERROR) {
+        return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus;
+    }
+
+    Mutex::Autolock _l(mCblk->lock);
+    if (mCblk->clientIndex == 0) {
+        return INVALID_OPERATION;
+    }
+    uint32_t size = 0;
+    return mIEffect->command(EFFECT_CMD_SET_PARAM_COMMIT, 0, NULL, &size, NULL);
+}
+
+status_t AudioEffect::getParameter(effect_param_t *param)
+{
+    if (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS) {
+        return mStatus;
+    }
+
+    if (param == NULL || param->psize == 0 || param->vsize == 0) {
+        return BAD_VALUE;
+    }
+
+    ALOGV("getParameter: param: %d, param2: %d", *(int *)param->data,
+            (param->psize == 8) ? *((int *)param->data + 1): -1);
+
+    uint32_t psize = sizeof(effect_param_t) + ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) +
+            param->vsize;
+
+    return mIEffect->command(EFFECT_CMD_GET_PARAM, sizeof(effect_param_t) + param->psize, param,
+            &psize, param);
+}
+
+
+// -------------------------------------------------------------------------
+
+void AudioEffect::binderDied()
+{
+    ALOGW("IEffect died");
+    mStatus = DEAD_OBJECT;
+    if (mCbf != NULL) {
+        status_t status = DEAD_OBJECT;
+        mCbf(EVENT_ERROR, mUserData, &status);
+    }
+    mIEffect.clear();
+}
+
+// -------------------------------------------------------------------------
+
+void AudioEffect::controlStatusChanged(bool controlGranted)
+{
+    ALOGV("controlStatusChanged %p control %d callback %p mUserData %p", this, controlGranted, mCbf,
+            mUserData);
+    if (controlGranted) {
+        if (mStatus == ALREADY_EXISTS) {
+            mStatus = NO_ERROR;
+        }
+    } else {
+        if (mStatus == NO_ERROR) {
+            mStatus = ALREADY_EXISTS;
+        }
+    }
+    if (mCbf != NULL) {
+        mCbf(EVENT_CONTROL_STATUS_CHANGED, mUserData, &controlGranted);
+    }
+}
+
+void AudioEffect::enableStatusChanged(bool enabled)
+{
+    ALOGV("enableStatusChanged %p enabled %d mCbf %p", this, enabled, mCbf);
+    if (mStatus == ALREADY_EXISTS) {
+        mEnabled = enabled;
+        if (mCbf != NULL) {
+            mCbf(EVENT_ENABLE_STATUS_CHANGED, mUserData, &enabled);
+        }
+    }
+}
+
+void AudioEffect::commandExecuted(uint32_t cmdCode,
+                                  uint32_t cmdSize __unused,
+                                  void *cmdData,
+                                  uint32_t replySize __unused,
+                                  void *replyData)
+{
+    if (cmdData == NULL || replyData == NULL) {
+        return;
+    }
+
+    if (mCbf != NULL && cmdCode == EFFECT_CMD_SET_PARAM) {
+        effect_param_t *cmd = (effect_param_t *)cmdData;
+        cmd->status = *(int32_t *)replyData;
+        mCbf(EVENT_PARAMETER_CHANGED, mUserData, cmd);
+    }
+}
+
+// -------------------------------------------------------------------------
+
+status_t AudioEffect::queryNumberEffects(uint32_t *numEffects)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    return af->queryNumberEffects(numEffects);
+}
+
+status_t AudioEffect::queryEffect(uint32_t index, effect_descriptor_t *descriptor)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    return af->queryEffect(index, descriptor);
+}
+
+status_t AudioEffect::getEffectDescriptor(const effect_uuid_t *uuid,
+        effect_descriptor_t *descriptor) /*const*/
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    return af->getEffectDescriptor(uuid, descriptor);
+}
+
+
+status_t AudioEffect::queryDefaultPreProcessing(audio_session_t audioSession,
+                                          effect_descriptor_t *descriptors,
+                                          uint32_t *count)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->queryDefaultPreProcessing(audioSession, descriptors, count);
+}
+// -------------------------------------------------------------------------
+
+status_t AudioEffect::stringToGuid(const char *str, effect_uuid_t *guid)
+{
+    if (str == NULL || guid == NULL) {
+        return BAD_VALUE;
+    }
+
+    int tmp[10];
+
+    if (sscanf(str, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x",
+            tmp, tmp+1, tmp+2, tmp+3, tmp+4, tmp+5, tmp+6, tmp+7, tmp+8, tmp+9) < 10) {
+        return BAD_VALUE;
+    }
+    guid->timeLow = (uint32_t)tmp[0];
+    guid->timeMid = (uint16_t)tmp[1];
+    guid->timeHiAndVersion = (uint16_t)tmp[2];
+    guid->clockSeq = (uint16_t)tmp[3];
+    guid->node[0] = (uint8_t)tmp[4];
+    guid->node[1] = (uint8_t)tmp[5];
+    guid->node[2] = (uint8_t)tmp[6];
+    guid->node[3] = (uint8_t)tmp[7];
+    guid->node[4] = (uint8_t)tmp[8];
+    guid->node[5] = (uint8_t)tmp[9];
+
+    return NO_ERROR;
+}
+
+status_t AudioEffect::guidToString(const effect_uuid_t *guid, char *str, size_t maxLen)
+{
+    if (guid == NULL || str == NULL) {
+        return BAD_VALUE;
+    }
+
+    snprintf(str, maxLen, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x",
+            guid->timeLow,
+            guid->timeMid,
+            guid->timeHiAndVersion,
+            guid->clockSeq,
+            guid->node[0],
+            guid->node[1],
+            guid->node[2],
+            guid->node[3],
+            guid->node[4],
+            guid->node[5]);
+
+    return NO_ERROR;
+}
+
+
+} // namespace android
diff --git a/media/libmedia/AudioPolicy.cpp b/media/libaudioclient/AudioPolicy.cpp
similarity index 100%
rename from media/libmedia/AudioPolicy.cpp
rename to media/libaudioclient/AudioPolicy.cpp
diff --git a/media/libaudioclient/AudioRecord.cpp b/media/libaudioclient/AudioRecord.cpp
new file mode 100644
index 0000000..e749ac4
--- /dev/null
+++ b/media/libaudioclient/AudioRecord.cpp
@@ -0,0 +1,1364 @@
+/*
+**
+** Copyright 2008, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "AudioRecord"
+
+#include <inttypes.h>
+#include <sys/resource.h>
+
+#include <binder/IPCThreadState.h>
+#include <media/AudioRecord.h>
+#include <utils/Log.h>
+#include <private/media/AudioTrackShared.h>
+#include <media/IAudioFlinger.h>
+
+#define WAIT_PERIOD_MS          10
+
+namespace android {
+// ---------------------------------------------------------------------------
+
+// static
+status_t AudioRecord::getMinFrameCount(
+        size_t* frameCount,
+        uint32_t sampleRate,
+        audio_format_t format,
+        audio_channel_mask_t channelMask)
+{
+    if (frameCount == NULL) {
+        return BAD_VALUE;
+    }
+
+    size_t size;
+    status_t status = AudioSystem::getInputBufferSize(sampleRate, format, channelMask, &size);
+    if (status != NO_ERROR) {
+        ALOGE("AudioSystem could not query the input buffer size for sampleRate %u, format %#x, "
+              "channelMask %#x; status %d", sampleRate, format, channelMask, status);
+        return status;
+    }
+
+    // We double the size of input buffer for ping pong use of record buffer.
+    // Assumes audio_is_linear_pcm(format)
+    if ((*frameCount = (size * 2) / (audio_channel_count_from_in_mask(channelMask) *
+            audio_bytes_per_sample(format))) == 0) {
+        ALOGE("Unsupported configuration: sampleRate %u, format %#x, channelMask %#x",
+            sampleRate, format, channelMask);
+        return BAD_VALUE;
+    }
+
+    return NO_ERROR;
+}
+
+// ---------------------------------------------------------------------------
+
+AudioRecord::AudioRecord(const String16 &opPackageName)
+    : mActive(false), mStatus(NO_INIT), mOpPackageName(opPackageName),
+      mSessionId(AUDIO_SESSION_ALLOCATE),
+      mPreviousPriority(ANDROID_PRIORITY_NORMAL), mPreviousSchedulingGroup(SP_DEFAULT),
+      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE), mPortId(AUDIO_PORT_HANDLE_NONE)
+{
+}
+
+AudioRecord::AudioRecord(
+        audio_source_t inputSource,
+        uint32_t sampleRate,
+        audio_format_t format,
+        audio_channel_mask_t channelMask,
+        const String16& opPackageName,
+        size_t frameCount,
+        callback_t cbf,
+        void* user,
+        uint32_t notificationFrames,
+        audio_session_t sessionId,
+        transfer_type transferType,
+        audio_input_flags_t flags,
+        uid_t uid,
+        pid_t pid,
+        const audio_attributes_t* pAttributes)
+    : mActive(false),
+      mStatus(NO_INIT),
+      mOpPackageName(opPackageName),
+      mSessionId(AUDIO_SESSION_ALLOCATE),
+      mPreviousPriority(ANDROID_PRIORITY_NORMAL),
+      mPreviousSchedulingGroup(SP_DEFAULT),
+      mProxy(NULL),
+      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
+      mPortId(AUDIO_PORT_HANDLE_NONE)
+{
+    mStatus = set(inputSource, sampleRate, format, channelMask, frameCount, cbf, user,
+            notificationFrames, false /*threadCanCallJava*/, sessionId, transferType, flags,
+            uid, pid, pAttributes);
+}
+
+AudioRecord::~AudioRecord()
+{
+    if (mStatus == NO_ERROR) {
+        // Make sure that callback function exits in the case where
+        // it is looping on buffer empty condition in obtainBuffer().
+        // Otherwise the callback thread will never exit.
+        stop();
+        if (mAudioRecordThread != 0) {
+            mProxy->interrupt();
+            mAudioRecordThread->requestExit();  // see comment in AudioRecord.h
+            mAudioRecordThread->requestExitAndWait();
+            mAudioRecordThread.clear();
+        }
+        // No lock here: worst case we remove a NULL callback which will be a nop
+        if (mDeviceCallback != 0 && mInput != AUDIO_IO_HANDLE_NONE) {
+            AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput);
+        }
+        IInterface::asBinder(mAudioRecord)->unlinkToDeath(mDeathNotifier, this);
+        mAudioRecord.clear();
+        mCblkMemory.clear();
+        mBufferMemory.clear();
+        IPCThreadState::self()->flushCommands();
+        ALOGV("~AudioRecord, releasing session id %d",
+                mSessionId);
+        AudioSystem::releaseAudioSessionId(mSessionId, -1 /*pid*/);
+    }
+}
+
+status_t AudioRecord::set(
+        audio_source_t inputSource,
+        uint32_t sampleRate,
+        audio_format_t format,
+        audio_channel_mask_t channelMask,
+        size_t frameCount,
+        callback_t cbf,
+        void* user,
+        uint32_t notificationFrames,
+        bool threadCanCallJava,
+        audio_session_t sessionId,
+        transfer_type transferType,
+        audio_input_flags_t flags,
+        uid_t uid,
+        pid_t pid,
+        const audio_attributes_t* pAttributes)
+{
+    ALOGV("set(): inputSource %d, sampleRate %u, format %#x, channelMask %#x, frameCount %zu, "
+          "notificationFrames %u, sessionId %d, transferType %d, flags %#x, opPackageName %s "
+          "uid %d, pid %d",
+          inputSource, sampleRate, format, channelMask, frameCount, notificationFrames,
+          sessionId, transferType, flags, String8(mOpPackageName).string(), uid, pid);
+
+    switch (transferType) {
+    case TRANSFER_DEFAULT:
+        if (cbf == NULL || threadCanCallJava) {
+            transferType = TRANSFER_SYNC;
+        } else {
+            transferType = TRANSFER_CALLBACK;
+        }
+        break;
+    case TRANSFER_CALLBACK:
+        if (cbf == NULL) {
+            ALOGE("Transfer type TRANSFER_CALLBACK but cbf == NULL");
+            return BAD_VALUE;
+        }
+        break;
+    case TRANSFER_OBTAIN:
+    case TRANSFER_SYNC:
+        break;
+    default:
+        ALOGE("Invalid transfer type %d", transferType);
+        return BAD_VALUE;
+    }
+    mTransfer = transferType;
+
+    // invariant that mAudioRecord != 0 is true only after set() returns successfully
+    if (mAudioRecord != 0) {
+        ALOGE("Track already in use");
+        return INVALID_OPERATION;
+    }
+
+    if (pAttributes == NULL) {
+        memset(&mAttributes, 0, sizeof(audio_attributes_t));
+        mAttributes.source = inputSource;
+    } else {
+        // stream type shouldn't be looked at, this track has audio attributes
+        memcpy(&mAttributes, pAttributes, sizeof(audio_attributes_t));
+        ALOGV("Building AudioRecord with attributes: source=%d flags=0x%x tags=[%s]",
+              mAttributes.source, mAttributes.flags, mAttributes.tags);
+    }
+
+    mSampleRate = sampleRate;
+
+    // these below should probably come from the audioFlinger too...
+    if (format == AUDIO_FORMAT_DEFAULT) {
+        format = AUDIO_FORMAT_PCM_16_BIT;
+    }
+
+    // validate parameters
+    // AudioFlinger capture only supports linear PCM
+    if (!audio_is_valid_format(format) || !audio_is_linear_pcm(format)) {
+        ALOGE("Format %#x is not linear pcm", format);
+        return BAD_VALUE;
+    }
+    mFormat = format;
+
+    if (!audio_is_input_channel(channelMask)) {
+        ALOGE("Invalid channel mask %#x", channelMask);
+        return BAD_VALUE;
+    }
+    mChannelMask = channelMask;
+    uint32_t channelCount = audio_channel_count_from_in_mask(channelMask);
+    mChannelCount = channelCount;
+
+    if (audio_is_linear_pcm(format)) {
+        mFrameSize = channelCount * audio_bytes_per_sample(format);
+    } else {
+        mFrameSize = sizeof(uint8_t);
+    }
+
+    // mFrameCount is initialized in openRecord_l
+    mReqFrameCount = frameCount;
+
+    mNotificationFramesReq = notificationFrames;
+    // mNotificationFramesAct is initialized in openRecord_l
+
+    if (sessionId == AUDIO_SESSION_ALLOCATE) {
+        mSessionId = (audio_session_t) AudioSystem::newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
+    } else {
+        mSessionId = sessionId;
+    }
+    ALOGV("set(): mSessionId %d", mSessionId);
+
+    int callingpid = IPCThreadState::self()->getCallingPid();
+    int mypid = getpid();
+    if (uid == AUDIO_UID_INVALID || (callingpid != mypid)) {
+        mClientUid = IPCThreadState::self()->getCallingUid();
+    } else {
+        mClientUid = uid;
+    }
+    if (pid == -1 || (callingpid != mypid)) {
+        mClientPid = callingpid;
+    } else {
+        mClientPid = pid;
+    }
+
+    mOrigFlags = mFlags = flags;
+    mCbf = cbf;
+
+    if (cbf != NULL) {
+        mAudioRecordThread = new AudioRecordThread(*this, threadCanCallJava);
+        mAudioRecordThread->run("AudioRecord", ANDROID_PRIORITY_AUDIO);
+        // thread begins in paused state, and will not reference us until start()
+    }
+
+    // create the IAudioRecord
+    status_t status = openRecord_l(0 /*epoch*/, mOpPackageName);
+
+    if (status != NO_ERROR) {
+        if (mAudioRecordThread != 0) {
+            mAudioRecordThread->requestExit();   // see comment in AudioRecord.h
+            mAudioRecordThread->requestExitAndWait();
+            mAudioRecordThread.clear();
+        }
+        return status;
+    }
+
+    mStatus = NO_ERROR;
+    mUserData = user;
+    // TODO: add audio hardware input latency here
+    mLatency = (1000 * mFrameCount) / mSampleRate;
+    mMarkerPosition = 0;
+    mMarkerReached = false;
+    mNewPosition = 0;
+    mUpdatePeriod = 0;
+    AudioSystem::acquireAudioSessionId(mSessionId, -1);
+    mSequence = 1;
+    mObservedSequence = mSequence;
+    mInOverrun = false;
+    mFramesRead = 0;
+    mFramesReadServerOffset = 0;
+
+    return NO_ERROR;
+}
+
+// -------------------------------------------------------------------------
+
+status_t AudioRecord::start(AudioSystem::sync_event_t event, audio_session_t triggerSession)
+{
+    ALOGV("start, sync event %d trigger session %d", event, triggerSession);
+
+    AutoMutex lock(mLock);
+    if (mActive) {
+        return NO_ERROR;
+    }
+
+    // discard data in buffer
+    const uint32_t framesFlushed = mProxy->flush();
+    mFramesReadServerOffset -= mFramesRead + framesFlushed;
+    mFramesRead = 0;
+    mProxy->clearTimestamp();  // timestamp is invalid until next server push
+
+    // reset current position as seen by client to 0
+    mProxy->setEpoch(mProxy->getEpoch() - mProxy->getPosition());
+    // force refresh of remaining frames by processAudioBuffer() as last
+    // read before stop could be partial.
+    mRefreshRemaining = true;
+
+    mNewPosition = mProxy->getPosition() + mUpdatePeriod;
+    int32_t flags = android_atomic_acquire_load(&mCblk->mFlags);
+
+    // we reactivate markers (mMarkerPosition != 0) as the position is reset to 0.
+    // This is legacy behavior.  This is not done in stop() to avoid a race condition
+    // where the last marker event is issued twice.
+    mMarkerReached = false;
+    mActive = true;
+
+    status_t status = NO_ERROR;
+    if (!(flags & CBLK_INVALID)) {
+        status = mAudioRecord->start(event, triggerSession);
+        if (status == DEAD_OBJECT) {
+            flags |= CBLK_INVALID;
+        }
+    }
+    if (flags & CBLK_INVALID) {
+        status = restoreRecord_l("start");
+    }
+
+    if (status != NO_ERROR) {
+        mActive = false;
+        ALOGE("start() status %d", status);
+    } else {
+        sp<AudioRecordThread> t = mAudioRecordThread;
+        if (t != 0) {
+            t->resume();
+        } else {
+            mPreviousPriority = getpriority(PRIO_PROCESS, 0);
+            get_sched_policy(0, &mPreviousSchedulingGroup);
+            androidSetThreadPriority(0, ANDROID_PRIORITY_AUDIO);
+        }
+    }
+
+    return status;
+}
+
+void AudioRecord::stop()
+{
+    AutoMutex lock(mLock);
+    if (!mActive) {
+        return;
+    }
+
+    mActive = false;
+    mProxy->interrupt();
+    mAudioRecord->stop();
+
+    // Note: legacy handling - stop does not clear record marker and
+    // periodic update position; we update those on start().
+
+    sp<AudioRecordThread> t = mAudioRecordThread;
+    if (t != 0) {
+        t->pause();
+    } else {
+        setpriority(PRIO_PROCESS, 0, mPreviousPriority);
+        set_sched_policy(0, mPreviousSchedulingGroup);
+    }
+}
+
+bool AudioRecord::stopped() const
+{
+    AutoMutex lock(mLock);
+    return !mActive;
+}
+
+status_t AudioRecord::setMarkerPosition(uint32_t marker)
+{
+    // The only purpose of setting marker position is to get a callback
+    if (mCbf == NULL) {
+        return INVALID_OPERATION;
+    }
+
+    AutoMutex lock(mLock);
+    mMarkerPosition = marker;
+    mMarkerReached = false;
+
+    sp<AudioRecordThread> t = mAudioRecordThread;
+    if (t != 0) {
+        t->wake();
+    }
+    return NO_ERROR;
+}
+
+status_t AudioRecord::getMarkerPosition(uint32_t *marker) const
+{
+    if (marker == NULL) {
+        return BAD_VALUE;
+    }
+
+    AutoMutex lock(mLock);
+    mMarkerPosition.getValue(marker);
+
+    return NO_ERROR;
+}
+
+status_t AudioRecord::setPositionUpdatePeriod(uint32_t updatePeriod)
+{
+    // The only purpose of setting position update period is to get a callback
+    if (mCbf == NULL) {
+        return INVALID_OPERATION;
+    }
+
+    AutoMutex lock(mLock);
+    mNewPosition = mProxy->getPosition() + updatePeriod;
+    mUpdatePeriod = updatePeriod;
+
+    sp<AudioRecordThread> t = mAudioRecordThread;
+    if (t != 0) {
+        t->wake();
+    }
+    return NO_ERROR;
+}
+
+status_t AudioRecord::getPositionUpdatePeriod(uint32_t *updatePeriod) const
+{
+    if (updatePeriod == NULL) {
+        return BAD_VALUE;
+    }
+
+    AutoMutex lock(mLock);
+    *updatePeriod = mUpdatePeriod;
+
+    return NO_ERROR;
+}
+
+status_t AudioRecord::getPosition(uint32_t *position) const
+{
+    if (position == NULL) {
+        return BAD_VALUE;
+    }
+
+    AutoMutex lock(mLock);
+    mProxy->getPosition().getValue(position);
+
+    return NO_ERROR;
+}
+
+uint32_t AudioRecord::getInputFramesLost() const
+{
+    // no need to check mActive, because if inactive this will return 0, which is what we want
+    return AudioSystem::getInputFramesLost(getInputPrivate());
+}
+
+status_t AudioRecord::getTimestamp(ExtendedTimestamp *timestamp)
+{
+    if (timestamp == nullptr) {
+        return BAD_VALUE;
+    }
+    AutoMutex lock(mLock);
+    status_t status = mProxy->getTimestamp(timestamp);
+    if (status == OK) {
+        timestamp->mPosition[ExtendedTimestamp::LOCATION_CLIENT] = mFramesRead;
+        timestamp->mTimeNs[ExtendedTimestamp::LOCATION_CLIENT] = 0;
+        // server side frame offset in case AudioRecord has been restored.
+        for (int i = ExtendedTimestamp::LOCATION_SERVER;
+                i < ExtendedTimestamp::LOCATION_MAX; ++i) {
+            if (timestamp->mTimeNs[i] >= 0) {
+                timestamp->mPosition[i] += mFramesReadServerOffset;
+            }
+        }
+    }
+    return status;
+}
+
+// ---- Explicit Routing ---------------------------------------------------
+status_t AudioRecord::setInputDevice(audio_port_handle_t deviceId) {
+    AutoMutex lock(mLock);
+    if (mSelectedDeviceId != deviceId) {
+        mSelectedDeviceId = deviceId;
+        if (mStatus == NO_ERROR) {
+            // stop capture so that audio policy manager does not reject the new instance start request
+            // as only one capture can be active at a time.
+            if (mAudioRecord != 0 && mActive) {
+                mAudioRecord->stop();
+            }
+            android_atomic_or(CBLK_INVALID, &mCblk->mFlags);
+        }
+    }
+    return NO_ERROR;
+}
+
+audio_port_handle_t AudioRecord::getInputDevice() {
+    AutoMutex lock(mLock);
+    return mSelectedDeviceId;
+}
+
+audio_port_handle_t AudioRecord::getRoutedDeviceId() {
+    AutoMutex lock(mLock);
+    if (mInput == AUDIO_IO_HANDLE_NONE) {
+        return AUDIO_PORT_HANDLE_NONE;
+    }
+    return AudioSystem::getDeviceIdForIo(mInput);
+}
+
+// -------------------------------------------------------------------------
+
+// must be called with mLock held
+status_t AudioRecord::openRecord_l(const Modulo<uint32_t> &epoch, const String16& opPackageName)
+{
+    const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger();
+    if (audioFlinger == 0) {
+        ALOGE("Could not get audioflinger");
+        return NO_INIT;
+    }
+
+    if (mDeviceCallback != 0 && mInput != AUDIO_IO_HANDLE_NONE) {
+        AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput);
+    }
+    audio_io_handle_t input;
+
+    // mFlags (not mOrigFlags) is modified depending on whether fast request is accepted.
+    // After fast request is denied, we will request again if IAudioRecord is re-created.
+
+    status_t status;
+
+    // Not a conventional loop, but a retry loop for at most two iterations total.
+    // Try first maybe with FAST flag then try again without FAST flag if that fails.
+    // Exits loop normally via a return at the bottom, or with error via a break.
+    // The sp<> references will be dropped when re-entering scope.
+    // The lack of indentation is deliberate, to reduce code churn and ease merges.
+    for (;;) {
+    audio_config_base_t config  = {
+            .sample_rate = mSampleRate,
+            .channel_mask = mChannelMask,
+            .format = mFormat
+        };
+    status = AudioSystem::getInputForAttr(&mAttributes, &input,
+                                        mSessionId,
+                                        // FIXME compare to AudioTrack
+                                        mClientPid,
+                                        mClientUid,
+                                        &config,
+                                        mFlags, mSelectedDeviceId, &mPortId);
+
+    if (status != NO_ERROR || input == AUDIO_IO_HANDLE_NONE) {
+        ALOGE("Could not get audio input for session %d, record source %d, sample rate %u, "
+              "format %#x, channel mask %#x, flags %#x",
+              mSessionId, mAttributes.source, mSampleRate, mFormat, mChannelMask, mFlags);
+        return BAD_VALUE;
+    }
+
+    // Now that we have a reference to an I/O handle and have not yet handed it off to AudioFlinger,
+    // we must release it ourselves if anything goes wrong.
+
+#if 0
+    size_t afFrameCount;
+    status = AudioSystem::getFrameCount(input, &afFrameCount);
+    if (status != NO_ERROR) {
+        ALOGE("getFrameCount(input=%d) status %d", input, status);
+        break;
+    }
+#endif
+
+    uint32_t afSampleRate;
+    status = AudioSystem::getSamplingRate(input, &afSampleRate);
+    if (status != NO_ERROR) {
+        ALOGE("getSamplingRate(input=%d) status %d", input, status);
+        break;
+    }
+    if (mSampleRate == 0) {
+        mSampleRate = afSampleRate;
+    }
+
+    // Client can only express a preference for FAST.  Server will perform additional tests.
+    if (mFlags & AUDIO_INPUT_FLAG_FAST) {
+        bool useCaseAllowed =
+            // any of these use cases:
+            // use case 1: callback transfer mode
+            (mTransfer == TRANSFER_CALLBACK) ||
+            // use case 2: blocking read mode
+            // The default buffer capacity at 48 kHz is 2048 frames, or ~42.6 ms.
+            // That's enough for double-buffering with our standard 20 ms rule of thumb for
+            // the minimum period of a non-SCHED_FIFO thread.
+            // This is needed so that AAudio apps can do a low latency non-blocking read from a
+            // callback running with SCHED_FIFO.
+            (mTransfer == TRANSFER_SYNC) ||
+            // use case 3: obtain/release mode
+            (mTransfer == TRANSFER_OBTAIN);
+        // sample rates must also match
+        bool fastAllowed = useCaseAllowed && (mSampleRate == afSampleRate);
+        if (!fastAllowed) {
+            ALOGW("AUDIO_INPUT_FLAG_FAST denied by client; transfer %d, "
+                "track %u Hz, input %u Hz",
+                mTransfer, mSampleRate, afSampleRate);
+            mFlags = (audio_input_flags_t) (mFlags & ~(AUDIO_INPUT_FLAG_FAST |
+                    AUDIO_INPUT_FLAG_RAW));
+            AudioSystem::releaseInput(input, mSessionId);
+            continue;   // retry
+        }
+    }
+
+    // The notification frame count is the period between callbacks, as suggested by the client
+    // but moderated by the server.  For record, the calculations are done entirely on server side.
+    size_t notificationFrames = mNotificationFramesReq;
+    size_t frameCount = mReqFrameCount;
+
+    audio_input_flags_t flags = mFlags;
+
+    pid_t tid = -1;
+    if (mFlags & AUDIO_INPUT_FLAG_FAST) {
+        if (mAudioRecordThread != 0) {
+            tid = mAudioRecordThread->getTid();
+        }
+    }
+
+    size_t temp = frameCount;   // temp may be replaced by a revised value of frameCount,
+                                // but we will still need the original value also
+    audio_session_t originalSessionId = mSessionId;
+
+    sp<IMemory> iMem;           // for cblk
+    sp<IMemory> bufferMem;
+    sp<IAudioRecord> record = audioFlinger->openRecord(input,
+                                                       mSampleRate,
+                                                       mFormat,
+                                                       mChannelMask,
+                                                       opPackageName,
+                                                       &temp,
+                                                       &flags,
+                                                       mClientPid,
+                                                       tid,
+                                                       mClientUid,
+                                                       &mSessionId,
+                                                       &notificationFrames,
+                                                       iMem,
+                                                       bufferMem,
+                                                       &status,
+                                                       mPortId);
+    ALOGE_IF(originalSessionId != AUDIO_SESSION_ALLOCATE && mSessionId != originalSessionId,
+            "session ID changed from %d to %d", originalSessionId, mSessionId);
+
+    if (status != NO_ERROR) {
+        ALOGE("AudioFlinger could not create record track, status: %d", status);
+        break;
+    }
+    ALOG_ASSERT(record != 0);
+
+    // AudioFlinger now owns the reference to the I/O handle,
+    // so we are no longer responsible for releasing it.
+
+    mAwaitBoost = false;
+    if (mFlags & AUDIO_INPUT_FLAG_FAST) {
+        if (flags & AUDIO_INPUT_FLAG_FAST) {
+            ALOGI("AUDIO_INPUT_FLAG_FAST successful; frameCount %zu -> %zu", frameCount, temp);
+            mAwaitBoost = true;
+        } else {
+            ALOGW("AUDIO_INPUT_FLAG_FAST denied by server; frameCount %zu -> %zu", frameCount, temp);
+            mFlags = (audio_input_flags_t) (mFlags & ~(AUDIO_INPUT_FLAG_FAST |
+                    AUDIO_INPUT_FLAG_RAW));
+            continue;   // retry
+        }
+    }
+    mFlags = flags;
+
+    if (iMem == 0) {
+        ALOGE("Could not get control block");
+        return NO_INIT;
+    }
+    void *iMemPointer = iMem->pointer();
+    if (iMemPointer == NULL) {
+        ALOGE("Could not get control block pointer");
+        return NO_INIT;
+    }
+    audio_track_cblk_t* cblk = static_cast<audio_track_cblk_t*>(iMemPointer);
+
+    // Starting address of buffers in shared memory.
+    // The buffers are either immediately after the control block,
+    // or in a separate area at discretion of server.
+    void *buffers;
+    if (bufferMem == 0) {
+        buffers = cblk + 1;
+    } else {
+        buffers = bufferMem->pointer();
+        if (buffers == NULL) {
+            ALOGE("Could not get buffer pointer");
+            return NO_INIT;
+        }
+    }
+
+    // invariant that mAudioRecord != 0 is true only after set() returns successfully
+    if (mAudioRecord != 0) {
+        IInterface::asBinder(mAudioRecord)->unlinkToDeath(mDeathNotifier, this);
+        mDeathNotifier.clear();
+    }
+    mAudioRecord = record;
+    mCblkMemory = iMem;
+    mBufferMemory = bufferMem;
+    IPCThreadState::self()->flushCommands();
+
+    mCblk = cblk;
+    // note that temp is the (possibly revised) value of frameCount
+    if (temp < frameCount || (frameCount == 0 && temp == 0)) {
+        ALOGW("Requested frameCount %zu but received frameCount %zu", frameCount, temp);
+    }
+    frameCount = temp;
+
+    // Make sure that application is notified with sufficient margin before overrun.
+    // The computation is done on server side.
+    if (mNotificationFramesReq > 0 && notificationFrames != mNotificationFramesReq) {
+        ALOGW("Server adjusted notificationFrames from %u to %zu for frameCount %zu",
+                mNotificationFramesReq, notificationFrames, frameCount);
+    }
+    mNotificationFramesAct = (uint32_t) notificationFrames;
+
+    // We retain a copy of the I/O handle, but don't own the reference
+    mInput = input;
+    mRefreshRemaining = true;
+
+    mFrameCount = frameCount;
+    // If IAudioRecord is re-created, don't let the requested frameCount
+    // decrease.  This can confuse clients that cache frameCount().
+    if (frameCount > mReqFrameCount) {
+        mReqFrameCount = frameCount;
+    }
+
+    // update proxy
+    mProxy = new AudioRecordClientProxy(cblk, buffers, mFrameCount, mFrameSize);
+    mProxy->setEpoch(epoch);
+    mProxy->setMinimum(mNotificationFramesAct);
+
+    mDeathNotifier = new DeathNotifier(this);
+    IInterface::asBinder(mAudioRecord)->linkToDeath(mDeathNotifier, this);
+
+    if (mDeviceCallback != 0) {
+        AudioSystem::addAudioDeviceCallback(mDeviceCallback, mInput);
+    }
+
+    return NO_ERROR;
+
+    // End of retry loop.
+    // The lack of indentation is deliberate, to reduce code churn and ease merges.
+    }
+
+// Arrive here on error, via a break
+    AudioSystem::releaseInput(input, mSessionId);
+    if (status == NO_ERROR) {
+        status = NO_INIT;
+    }
+    return status;
+}
+
+status_t AudioRecord::obtainBuffer(Buffer* audioBuffer, int32_t waitCount, size_t *nonContig)
+{
+    if (audioBuffer == NULL) {
+        if (nonContig != NULL) {
+            *nonContig = 0;
+        }
+        return BAD_VALUE;
+    }
+    if (mTransfer != TRANSFER_OBTAIN) {
+        audioBuffer->frameCount = 0;
+        audioBuffer->size = 0;
+        audioBuffer->raw = NULL;
+        if (nonContig != NULL) {
+            *nonContig = 0;
+        }
+        return INVALID_OPERATION;
+    }
+
+    const struct timespec *requested;
+    struct timespec timeout;
+    if (waitCount == -1) {
+        requested = &ClientProxy::kForever;
+    } else if (waitCount == 0) {
+        requested = &ClientProxy::kNonBlocking;
+    } else if (waitCount > 0) {
+        long long ms = WAIT_PERIOD_MS * (long long) waitCount;
+        timeout.tv_sec = ms / 1000;
+        timeout.tv_nsec = (int) (ms % 1000) * 1000000;
+        requested = &timeout;
+    } else {
+        ALOGE("%s invalid waitCount %d", __func__, waitCount);
+        requested = NULL;
+    }
+    return obtainBuffer(audioBuffer, requested, NULL /*elapsed*/, nonContig);
+}
+
+status_t AudioRecord::obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
+        struct timespec *elapsed, size_t *nonContig)
+{
+    // previous and new IAudioRecord sequence numbers are used to detect track re-creation
+    uint32_t oldSequence = 0;
+    uint32_t newSequence;
+
+    Proxy::Buffer buffer;
+    status_t status = NO_ERROR;
+
+    static const int32_t kMaxTries = 5;
+    int32_t tryCounter = kMaxTries;
+
+    do {
+        // obtainBuffer() is called with mutex unlocked, so keep extra references to these fields to
+        // keep them from going away if another thread re-creates the track during obtainBuffer()
+        sp<AudioRecordClientProxy> proxy;
+        sp<IMemory> iMem;
+        sp<IMemory> bufferMem;
+        {
+            // start of lock scope
+            AutoMutex lock(mLock);
+
+            newSequence = mSequence;
+            // did previous obtainBuffer() fail due to media server death or voluntary invalidation?
+            if (status == DEAD_OBJECT) {
+                // re-create track, unless someone else has already done so
+                if (newSequence == oldSequence) {
+                    status = restoreRecord_l("obtainBuffer");
+                    if (status != NO_ERROR) {
+                        buffer.mFrameCount = 0;
+                        buffer.mRaw = NULL;
+                        buffer.mNonContig = 0;
+                        break;
+                    }
+                }
+            }
+            oldSequence = newSequence;
+
+            // Keep the extra references
+            proxy = mProxy;
+            iMem = mCblkMemory;
+            bufferMem = mBufferMemory;
+
+            // Non-blocking if track is stopped
+            if (!mActive) {
+                requested = &ClientProxy::kNonBlocking;
+            }
+
+        }   // end of lock scope
+
+        buffer.mFrameCount = audioBuffer->frameCount;
+        // FIXME starts the requested timeout and elapsed over from scratch
+        status = proxy->obtainBuffer(&buffer, requested, elapsed);
+
+    } while ((status == DEAD_OBJECT) && (tryCounter-- > 0));
+
+    audioBuffer->frameCount = buffer.mFrameCount;
+    audioBuffer->size = buffer.mFrameCount * mFrameSize;
+    audioBuffer->raw = buffer.mRaw;
+    if (nonContig != NULL) {
+        *nonContig = buffer.mNonContig;
+    }
+    return status;
+}
+
+void AudioRecord::releaseBuffer(const Buffer* audioBuffer)
+{
+    // FIXME add error checking on mode, by adding an internal version
+
+    size_t stepCount = audioBuffer->size / mFrameSize;
+    if (stepCount == 0) {
+        return;
+    }
+
+    Proxy::Buffer buffer;
+    buffer.mFrameCount = stepCount;
+    buffer.mRaw = audioBuffer->raw;
+
+    AutoMutex lock(mLock);
+    mInOverrun = false;
+    mProxy->releaseBuffer(&buffer);
+
+    // the server does not automatically disable recorder on overrun, so no need to restart
+}
+
+audio_io_handle_t AudioRecord::getInputPrivate() const
+{
+    AutoMutex lock(mLock);
+    return mInput;
+}
+
+// -------------------------------------------------------------------------
+
+ssize_t AudioRecord::read(void* buffer, size_t userSize, bool blocking)
+{
+    if (mTransfer != TRANSFER_SYNC) {
+        return INVALID_OPERATION;
+    }
+
+    if (ssize_t(userSize) < 0 || (buffer == NULL && userSize != 0)) {
+        // sanity-check. user is most-likely passing an error code, and it would
+        // make the return value ambiguous (actualSize vs error).
+        ALOGE("AudioRecord::read(buffer=%p, size=%zu (%zu)", buffer, userSize, userSize);
+        return BAD_VALUE;
+    }
+
+    ssize_t read = 0;
+    Buffer audioBuffer;
+
+    while (userSize >= mFrameSize) {
+        audioBuffer.frameCount = userSize / mFrameSize;
+
+        status_t err = obtainBuffer(&audioBuffer,
+                blocking ? &ClientProxy::kForever : &ClientProxy::kNonBlocking);
+        if (err < 0) {
+            if (read > 0) {
+                break;
+            }
+            if (err == TIMED_OUT || err == -EINTR) {
+                err = WOULD_BLOCK;
+            }
+            return ssize_t(err);
+        }
+
+        size_t bytesRead = audioBuffer.size;
+        memcpy(buffer, audioBuffer.i8, bytesRead);
+        buffer = ((char *) buffer) + bytesRead;
+        userSize -= bytesRead;
+        read += bytesRead;
+
+        releaseBuffer(&audioBuffer);
+    }
+    if (read > 0) {
+        mFramesRead += read / mFrameSize;
+        // mFramesReadTime = systemTime(SYSTEM_TIME_MONOTONIC); // not provided at this time.
+    }
+    return read;
+}
+
+// -------------------------------------------------------------------------
+
+nsecs_t AudioRecord::processAudioBuffer()
+{
+    mLock.lock();
+    if (mAwaitBoost) {
+        mAwaitBoost = false;
+        mLock.unlock();
+        static const int32_t kMaxTries = 5;
+        int32_t tryCounter = kMaxTries;
+        uint32_t pollUs = 10000;
+        do {
+            int policy = sched_getscheduler(0) & ~SCHED_RESET_ON_FORK;
+            if (policy == SCHED_FIFO || policy == SCHED_RR) {
+                break;
+            }
+            usleep(pollUs);
+            pollUs <<= 1;
+        } while (tryCounter-- > 0);
+        if (tryCounter < 0) {
+            ALOGE("did not receive expected priority boost on time");
+        }
+        // Run again immediately
+        return 0;
+    }
+
+    // Can only reference mCblk while locked
+    int32_t flags = android_atomic_and(~CBLK_OVERRUN, &mCblk->mFlags);
+
+    // Check for track invalidation
+    if (flags & CBLK_INVALID) {
+        (void) restoreRecord_l("processAudioBuffer");
+        mLock.unlock();
+        // Run again immediately, but with a new IAudioRecord
+        return 0;
+    }
+
+    bool active = mActive;
+
+    // Manage overrun callback, must be done under lock to avoid race with releaseBuffer()
+    bool newOverrun = false;
+    if (flags & CBLK_OVERRUN) {
+        if (!mInOverrun) {
+            mInOverrun = true;
+            newOverrun = true;
+        }
+    }
+
+    // Get current position of server
+    Modulo<uint32_t> position(mProxy->getPosition());
+
+    // Manage marker callback
+    bool markerReached = false;
+    Modulo<uint32_t> markerPosition(mMarkerPosition);
+    // FIXME fails for wraparound, need 64 bits
+    if (!mMarkerReached && markerPosition.value() > 0 && position >= markerPosition) {
+        mMarkerReached = markerReached = true;
+    }
+
+    // Determine the number of new position callback(s) that will be needed, while locked
+    size_t newPosCount = 0;
+    Modulo<uint32_t> newPosition(mNewPosition);
+    uint32_t updatePeriod = mUpdatePeriod;
+    // FIXME fails for wraparound, need 64 bits
+    if (updatePeriod > 0 && position >= newPosition) {
+        newPosCount = ((position - newPosition).value() / updatePeriod) + 1;
+        mNewPosition += updatePeriod * newPosCount;
+    }
+
+    // Cache other fields that will be needed soon
+    uint32_t notificationFrames = mNotificationFramesAct;
+    if (mRefreshRemaining) {
+        mRefreshRemaining = false;
+        mRemainingFrames = notificationFrames;
+        mRetryOnPartialBuffer = false;
+    }
+    size_t misalignment = mProxy->getMisalignment();
+    uint32_t sequence = mSequence;
+
+    // These fields don't need to be cached, because they are assigned only by set():
+    //      mTransfer, mCbf, mUserData, mSampleRate, mFrameSize
+
+    mLock.unlock();
+
+    // perform callbacks while unlocked
+    if (newOverrun) {
+        mCbf(EVENT_OVERRUN, mUserData, NULL);
+    }
+    if (markerReached) {
+        mCbf(EVENT_MARKER, mUserData, &markerPosition);
+    }
+    while (newPosCount > 0) {
+        size_t temp = newPosition.value(); // FIXME size_t != uint32_t
+        mCbf(EVENT_NEW_POS, mUserData, &temp);
+        newPosition += updatePeriod;
+        newPosCount--;
+    }
+    if (mObservedSequence != sequence) {
+        mObservedSequence = sequence;
+        mCbf(EVENT_NEW_IAUDIORECORD, mUserData, NULL);
+    }
+
+    // if inactive, then don't run me again until re-started
+    if (!active) {
+        return NS_INACTIVE;
+    }
+
+    // Compute the estimated time until the next timed event (position, markers)
+    uint32_t minFrames = ~0;
+    if (!markerReached && position < markerPosition) {
+        minFrames = (markerPosition - position).value();
+    }
+    if (updatePeriod > 0) {
+        uint32_t remaining = (newPosition - position).value();
+        if (remaining < minFrames) {
+            minFrames = remaining;
+        }
+    }
+
+    // If > 0, poll periodically to recover from a stuck server.  A good value is 2.
+    static const uint32_t kPoll = 0;
+    if (kPoll > 0 && mTransfer == TRANSFER_CALLBACK && kPoll * notificationFrames < minFrames) {
+        minFrames = kPoll * notificationFrames;
+    }
+
+    // Convert frame units to time units
+    nsecs_t ns = NS_WHENEVER;
+    if (minFrames != (uint32_t) ~0) {
+        // This "fudge factor" avoids soaking CPU, and compensates for late progress by server
+        static const nsecs_t kFudgeNs = 10000000LL; // 10 ms
+        ns = ((minFrames * 1000000000LL) / mSampleRate) + kFudgeNs;
+    }
+
+    // If not supplying data by EVENT_MORE_DATA, then we're done
+    if (mTransfer != TRANSFER_CALLBACK) {
+        return ns;
+    }
+
+    struct timespec timeout;
+    const struct timespec *requested = &ClientProxy::kForever;
+    if (ns != NS_WHENEVER) {
+        timeout.tv_sec = ns / 1000000000LL;
+        timeout.tv_nsec = ns % 1000000000LL;
+        ALOGV("timeout %ld.%03d", timeout.tv_sec, (int) timeout.tv_nsec / 1000000);
+        requested = &timeout;
+    }
+
+    size_t readFrames = 0;
+    while (mRemainingFrames > 0) {
+
+        Buffer audioBuffer;
+        audioBuffer.frameCount = mRemainingFrames;
+        size_t nonContig;
+        status_t err = obtainBuffer(&audioBuffer, requested, NULL, &nonContig);
+        LOG_ALWAYS_FATAL_IF((err != NO_ERROR) != (audioBuffer.frameCount == 0),
+                "obtainBuffer() err=%d frameCount=%zu", err, audioBuffer.frameCount);
+        requested = &ClientProxy::kNonBlocking;
+        size_t avail = audioBuffer.frameCount + nonContig;
+        ALOGV("obtainBuffer(%u) returned %zu = %zu + %zu err %d",
+                mRemainingFrames, avail, audioBuffer.frameCount, nonContig, err);
+        if (err != NO_ERROR) {
+            if (err == TIMED_OUT || err == WOULD_BLOCK || err == -EINTR) {
+                break;
+            }
+            ALOGE("Error %d obtaining an audio buffer, giving up.", err);
+            return NS_NEVER;
+        }
+
+        if (mRetryOnPartialBuffer) {
+            mRetryOnPartialBuffer = false;
+            if (avail < mRemainingFrames) {
+                int64_t myns = ((mRemainingFrames - avail) *
+                        1100000000LL) / mSampleRate;
+                if (ns < 0 || myns < ns) {
+                    ns = myns;
+                }
+                return ns;
+            }
+        }
+
+        size_t reqSize = audioBuffer.size;
+        mCbf(EVENT_MORE_DATA, mUserData, &audioBuffer);
+        size_t readSize = audioBuffer.size;
+
+        // Sanity check on returned size
+        if (ssize_t(readSize) < 0 || readSize > reqSize) {
+            ALOGE("EVENT_MORE_DATA requested %zu bytes but callback returned %zd bytes",
+                    reqSize, ssize_t(readSize));
+            return NS_NEVER;
+        }
+
+        if (readSize == 0) {
+            // The callback is done consuming buffers
+            // Keep this thread going to handle timed events and
+            // still try to provide more data in intervals of WAIT_PERIOD_MS
+            // but don't just loop and block the CPU, so wait
+            return WAIT_PERIOD_MS * 1000000LL;
+        }
+
+        size_t releasedFrames = readSize / mFrameSize;
+        audioBuffer.frameCount = releasedFrames;
+        mRemainingFrames -= releasedFrames;
+        if (misalignment >= releasedFrames) {
+            misalignment -= releasedFrames;
+        } else {
+            misalignment = 0;
+        }
+
+        releaseBuffer(&audioBuffer);
+        readFrames += releasedFrames;
+
+        // FIXME here is where we would repeat EVENT_MORE_DATA again on same advanced buffer
+        // if callback doesn't like to accept the full chunk
+        if (readSize < reqSize) {
+            continue;
+        }
+
+        // There could be enough non-contiguous frames available to satisfy the remaining request
+        if (mRemainingFrames <= nonContig) {
+            continue;
+        }
+
+#if 0
+        // This heuristic tries to collapse a series of EVENT_MORE_DATA that would total to a
+        // sum <= notificationFrames.  It replaces that series by at most two EVENT_MORE_DATA
+        // that total to a sum == notificationFrames.
+        if (0 < misalignment && misalignment <= mRemainingFrames) {
+            mRemainingFrames = misalignment;
+            return (mRemainingFrames * 1100000000LL) / mSampleRate;
+        }
+#endif
+
+    }
+    if (readFrames > 0) {
+        AutoMutex lock(mLock);
+        mFramesRead += readFrames;
+        // mFramesReadTime = systemTime(SYSTEM_TIME_MONOTONIC); // not provided at this time.
+    }
+    mRemainingFrames = notificationFrames;
+    mRetryOnPartialBuffer = true;
+
+    // A lot has transpired since ns was calculated, so run again immediately and re-calculate
+    return 0;
+}
+
+status_t AudioRecord::restoreRecord_l(const char *from)
+{
+    ALOGW("dead IAudioRecord, creating a new one from %s()", from);
+    ++mSequence;
+
+    mFlags = mOrigFlags;
+
+    // if the new IAudioRecord is created, openRecord_l() will modify the
+    // following member variables: mAudioRecord, mCblkMemory, mCblk, mBufferMemory.
+    // It will also delete the strong references on previous IAudioRecord and IMemory
+    Modulo<uint32_t> position(mProxy->getPosition());
+    mNewPosition = position + mUpdatePeriod;
+    status_t result = openRecord_l(position, mOpPackageName);
+    if (result == NO_ERROR) {
+        if (mActive) {
+            // callback thread or sync event hasn't changed
+            // FIXME this fails if we have a new AudioFlinger instance
+            result = mAudioRecord->start(AudioSystem::SYNC_EVENT_SAME, AUDIO_SESSION_NONE);
+        }
+        mFramesReadServerOffset = mFramesRead; // server resets to zero so we need an offset.
+    }
+    if (result != NO_ERROR) {
+        ALOGW("restoreRecord_l() failed status %d", result);
+        mActive = false;
+    }
+
+    return result;
+}
+
+status_t AudioRecord::addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback)
+{
+    if (callback == 0) {
+        ALOGW("%s adding NULL callback!", __FUNCTION__);
+        return BAD_VALUE;
+    }
+    AutoMutex lock(mLock);
+    if (mDeviceCallback == callback) {
+        ALOGW("%s adding same callback!", __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+    status_t status = NO_ERROR;
+    if (mInput != AUDIO_IO_HANDLE_NONE) {
+        if (mDeviceCallback != 0) {
+            ALOGW("%s callback already present!", __FUNCTION__);
+            AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput);
+        }
+        status = AudioSystem::addAudioDeviceCallback(callback, mInput);
+    }
+    mDeviceCallback = callback;
+    return status;
+}
+
+status_t AudioRecord::removeAudioDeviceCallback(
+        const sp<AudioSystem::AudioDeviceCallback>& callback)
+{
+    if (callback == 0) {
+        ALOGW("%s removing NULL callback!", __FUNCTION__);
+        return BAD_VALUE;
+    }
+    AutoMutex lock(mLock);
+    if (mDeviceCallback != callback) {
+        ALOGW("%s removing different callback!", __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+    if (mInput != AUDIO_IO_HANDLE_NONE) {
+        AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput);
+    }
+    mDeviceCallback = 0;
+    return NO_ERROR;
+}
+
+// =========================================================================
+
+void AudioRecord::DeathNotifier::binderDied(const wp<IBinder>& who __unused)
+{
+    sp<AudioRecord> audioRecord = mAudioRecord.promote();
+    if (audioRecord != 0) {
+        AutoMutex lock(audioRecord->mLock);
+        audioRecord->mProxy->binderDied();
+    }
+}
+
+// =========================================================================
+
+AudioRecord::AudioRecordThread::AudioRecordThread(AudioRecord& receiver, bool bCanCallJava)
+    : Thread(bCanCallJava), mReceiver(receiver), mPaused(true), mPausedInt(false), mPausedNs(0LL),
+      mIgnoreNextPausedInt(false)
+{
+}
+
+AudioRecord::AudioRecordThread::~AudioRecordThread()
+{
+}
+
+bool AudioRecord::AudioRecordThread::threadLoop()
+{
+    {
+        AutoMutex _l(mMyLock);
+        if (mPaused) {
+            mMyCond.wait(mMyLock);
+            // caller will check for exitPending()
+            return true;
+        }
+        if (mIgnoreNextPausedInt) {
+            mIgnoreNextPausedInt = false;
+            mPausedInt = false;
+        }
+        if (mPausedInt) {
+            if (mPausedNs > 0) {
+                (void) mMyCond.waitRelative(mMyLock, mPausedNs);
+            } else {
+                mMyCond.wait(mMyLock);
+            }
+            mPausedInt = false;
+            return true;
+        }
+    }
+    if (exitPending()) {
+        return false;
+    }
+    nsecs_t ns =  mReceiver.processAudioBuffer();
+    switch (ns) {
+    case 0:
+        return true;
+    case NS_INACTIVE:
+        pauseInternal();
+        return true;
+    case NS_NEVER:
+        return false;
+    case NS_WHENEVER:
+        // Event driven: call wake() when callback notifications conditions change.
+        ns = INT64_MAX;
+        // fall through
+    default:
+        LOG_ALWAYS_FATAL_IF(ns < 0, "processAudioBuffer() returned %" PRId64, ns);
+        pauseInternal(ns);
+        return true;
+    }
+}
+
+void AudioRecord::AudioRecordThread::requestExit()
+{
+    // must be in this order to avoid a race condition
+    Thread::requestExit();
+    resume();
+}
+
+void AudioRecord::AudioRecordThread::pause()
+{
+    AutoMutex _l(mMyLock);
+    mPaused = true;
+}
+
+void AudioRecord::AudioRecordThread::resume()
+{
+    AutoMutex _l(mMyLock);
+    mIgnoreNextPausedInt = true;
+    if (mPaused || mPausedInt) {
+        mPaused = false;
+        mPausedInt = false;
+        mMyCond.signal();
+    }
+}
+
+void AudioRecord::AudioRecordThread::wake()
+{
+    AutoMutex _l(mMyLock);
+    if (!mPaused) {
+        // wake() might be called while servicing a callback - ignore the next
+        // pause time and call processAudioBuffer.
+        mIgnoreNextPausedInt = true;
+        if (mPausedInt && mPausedNs > 0) {
+            // audio record is active and internally paused with timeout.
+            mPausedInt = false;
+            mMyCond.signal();
+        }
+    }
+}
+
+void AudioRecord::AudioRecordThread::pauseInternal(nsecs_t ns)
+{
+    AutoMutex _l(mMyLock);
+    mPausedInt = true;
+    mPausedNs = ns;
+}
+
+// -------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
new file mode 100644
index 0000000..9ef1db7
--- /dev/null
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -0,0 +1,1323 @@
+/*
+ * Copyright (C) 2006-2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioSystem"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+#include <binder/IServiceManager.h>
+#include <binder/ProcessState.h>
+#include <media/AudioSystem.h>
+#include <media/IAudioFlinger.h>
+#include <media/IAudioPolicyService.h>
+#include <math.h>
+
+#include <system/audio.h>
+
+// ----------------------------------------------------------------------------
+
+namespace android {
+
+// client singleton for AudioFlinger binder interface
+Mutex AudioSystem::gLock;
+Mutex AudioSystem::gLockAPS;
+sp<IAudioFlinger> AudioSystem::gAudioFlinger;
+sp<AudioSystem::AudioFlingerClient> AudioSystem::gAudioFlingerClient;
+audio_error_callback AudioSystem::gAudioErrorCallback = NULL;
+dynamic_policy_callback AudioSystem::gDynPolicyCallback = NULL;
+record_config_callback  AudioSystem::gRecordConfigCallback = NULL;
+
+
+// establish binder interface to AudioFlinger service
+const sp<IAudioFlinger> AudioSystem::get_audio_flinger()
+{
+    sp<IAudioFlinger> af;
+    sp<AudioFlingerClient> afc;
+    {
+        Mutex::Autolock _l(gLock);
+        if (gAudioFlinger == 0) {
+            sp<IServiceManager> sm = defaultServiceManager();
+            sp<IBinder> binder;
+            do {
+                binder = sm->getService(String16("media.audio_flinger"));
+                if (binder != 0)
+                    break;
+                ALOGW("AudioFlinger not published, waiting...");
+                usleep(500000); // 0.5 s
+            } while (true);
+            if (gAudioFlingerClient == NULL) {
+                gAudioFlingerClient = new AudioFlingerClient();
+            } else {
+                if (gAudioErrorCallback) {
+                    gAudioErrorCallback(NO_ERROR);
+                }
+            }
+            binder->linkToDeath(gAudioFlingerClient);
+            gAudioFlinger = interface_cast<IAudioFlinger>(binder);
+            LOG_ALWAYS_FATAL_IF(gAudioFlinger == 0);
+            afc = gAudioFlingerClient;
+            // Make sure callbacks can be received by gAudioFlingerClient
+            ProcessState::self()->startThreadPool();
+        }
+        af = gAudioFlinger;
+    }
+    if (afc != 0) {
+        af->registerClient(afc);
+    }
+    return af;
+}
+
+const sp<AudioSystem::AudioFlingerClient> AudioSystem::getAudioFlingerClient()
+{
+    // calling get_audio_flinger() will initialize gAudioFlingerClient if needed
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return 0;
+    Mutex::Autolock _l(gLock);
+    return gAudioFlingerClient;
+}
+
+sp<AudioIoDescriptor> AudioSystem::getIoDescriptor(audio_io_handle_t ioHandle)
+{
+    sp<AudioIoDescriptor> desc;
+    const sp<AudioFlingerClient> afc = getAudioFlingerClient();
+    if (afc != 0) {
+        desc = afc->getIoDescriptor(ioHandle);
+    }
+    return desc;
+}
+
+/* static */ status_t AudioSystem::checkAudioFlinger()
+{
+    if (defaultServiceManager()->checkService(String16("media.audio_flinger")) != 0) {
+        return NO_ERROR;
+    }
+    return DEAD_OBJECT;
+}
+
+// FIXME Declare in binder opcode order, similarly to IAudioFlinger.h and IAudioFlinger.cpp
+
+status_t AudioSystem::muteMicrophone(bool state)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    return af->setMicMute(state);
+}
+
+status_t AudioSystem::isMicrophoneMuted(bool* state)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    *state = af->getMicMute();
+    return NO_ERROR;
+}
+
+status_t AudioSystem::setMasterVolume(float value)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    af->setMasterVolume(value);
+    return NO_ERROR;
+}
+
+status_t AudioSystem::setMasterMute(bool mute)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    af->setMasterMute(mute);
+    return NO_ERROR;
+}
+
+status_t AudioSystem::getMasterVolume(float* volume)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    *volume = af->masterVolume();
+    return NO_ERROR;
+}
+
+status_t AudioSystem::getMasterMute(bool* mute)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    *mute = af->masterMute();
+    return NO_ERROR;
+}
+
+status_t AudioSystem::setStreamVolume(audio_stream_type_t stream, float value,
+        audio_io_handle_t output)
+{
+    if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    af->setStreamVolume(stream, value, output);
+    return NO_ERROR;
+}
+
+status_t AudioSystem::setStreamMute(audio_stream_type_t stream, bool mute)
+{
+    if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    af->setStreamMute(stream, mute);
+    return NO_ERROR;
+}
+
+status_t AudioSystem::getStreamVolume(audio_stream_type_t stream, float* volume,
+        audio_io_handle_t output)
+{
+    if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    *volume = af->streamVolume(stream, output);
+    return NO_ERROR;
+}
+
+status_t AudioSystem::getStreamMute(audio_stream_type_t stream, bool* mute)
+{
+    if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    *mute = af->streamMute(stream);
+    return NO_ERROR;
+}
+
+status_t AudioSystem::setMode(audio_mode_t mode)
+{
+    if (uint32_t(mode) >= AUDIO_MODE_CNT) return BAD_VALUE;
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    return af->setMode(mode);
+}
+
+status_t AudioSystem::setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    return af->setParameters(ioHandle, keyValuePairs);
+}
+
+String8 AudioSystem::getParameters(audio_io_handle_t ioHandle, const String8& keys)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    String8 result = String8("");
+    if (af == 0) return result;
+
+    result = af->getParameters(ioHandle, keys);
+    return result;
+}
+
+status_t AudioSystem::setParameters(const String8& keyValuePairs)
+{
+    return setParameters(AUDIO_IO_HANDLE_NONE, keyValuePairs);
+}
+
+String8 AudioSystem::getParameters(const String8& keys)
+{
+    return getParameters(AUDIO_IO_HANDLE_NONE, keys);
+}
+
+// convert volume steps to natural log scale
+
+// change this value to change volume scaling
+static const float dBPerStep = 0.5f;
+// shouldn't need to touch these
+static const float dBConvert = -dBPerStep * 2.302585093f / 20.0f;
+static const float dBConvertInverse = 1.0f / dBConvert;
+
+float AudioSystem::linearToLog(int volume)
+{
+    // float v = volume ? exp(float(100 - volume) * dBConvert) : 0;
+    // ALOGD("linearToLog(%d)=%f", volume, v);
+    // return v;
+    return volume ? exp(float(100 - volume) * dBConvert) : 0;
+}
+
+int AudioSystem::logToLinear(float volume)
+{
+    // int v = volume ? 100 - int(dBConvertInverse * log(volume) + 0.5) : 0;
+    // ALOGD("logTolinear(%d)=%f", v, volume);
+    // return v;
+    return volume ? 100 - int(dBConvertInverse * log(volume) + 0.5) : 0;
+}
+
+status_t AudioSystem::getOutputSamplingRate(uint32_t* samplingRate, audio_stream_type_t streamType)
+{
+    audio_io_handle_t output;
+
+    if (streamType == AUDIO_STREAM_DEFAULT) {
+        streamType = AUDIO_STREAM_MUSIC;
+    }
+
+    output = getOutput(streamType);
+    if (output == 0) {
+        return PERMISSION_DENIED;
+    }
+
+    return getSamplingRate(output, samplingRate);
+}
+
+status_t AudioSystem::getSamplingRate(audio_io_handle_t ioHandle,
+                                      uint32_t* samplingRate)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    sp<AudioIoDescriptor> desc = getIoDescriptor(ioHandle);
+    if (desc == 0) {
+        *samplingRate = af->sampleRate(ioHandle);
+    } else {
+        *samplingRate = desc->mSamplingRate;
+    }
+    if (*samplingRate == 0) {
+        ALOGE("AudioSystem::getSamplingRate failed for ioHandle %d", ioHandle);
+        return BAD_VALUE;
+    }
+
+    ALOGV("getSamplingRate() ioHandle %d, sampling rate %u", ioHandle, *samplingRate);
+
+    return NO_ERROR;
+}
+
+status_t AudioSystem::getOutputFrameCount(size_t* frameCount, audio_stream_type_t streamType)
+{
+    audio_io_handle_t output;
+
+    if (streamType == AUDIO_STREAM_DEFAULT) {
+        streamType = AUDIO_STREAM_MUSIC;
+    }
+
+    output = getOutput(streamType);
+    if (output == AUDIO_IO_HANDLE_NONE) {
+        return PERMISSION_DENIED;
+    }
+
+    return getFrameCount(output, frameCount);
+}
+
+status_t AudioSystem::getFrameCount(audio_io_handle_t ioHandle,
+                                    size_t* frameCount)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    sp<AudioIoDescriptor> desc = getIoDescriptor(ioHandle);
+    if (desc == 0) {
+        *frameCount = af->frameCount(ioHandle);
+    } else {
+        *frameCount = desc->mFrameCount;
+    }
+    if (*frameCount == 0) {
+        ALOGE("AudioSystem::getFrameCount failed for ioHandle %d", ioHandle);
+        return BAD_VALUE;
+    }
+
+    ALOGV("getFrameCount() ioHandle %d, frameCount %zu", ioHandle, *frameCount);
+
+    return NO_ERROR;
+}
+
+status_t AudioSystem::getOutputLatency(uint32_t* latency, audio_stream_type_t streamType)
+{
+    audio_io_handle_t output;
+
+    if (streamType == AUDIO_STREAM_DEFAULT) {
+        streamType = AUDIO_STREAM_MUSIC;
+    }
+
+    output = getOutput(streamType);
+    if (output == AUDIO_IO_HANDLE_NONE) {
+        return PERMISSION_DENIED;
+    }
+
+    return getLatency(output, latency);
+}
+
+status_t AudioSystem::getLatency(audio_io_handle_t output,
+                                 uint32_t* latency)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    sp<AudioIoDescriptor> outputDesc = getIoDescriptor(output);
+    if (outputDesc == 0) {
+        *latency = af->latency(output);
+    } else {
+        *latency = outputDesc->mLatency;
+    }
+
+    ALOGV("getLatency() output %d, latency %d", output, *latency);
+
+    return NO_ERROR;
+}
+
+status_t AudioSystem::getInputBufferSize(uint32_t sampleRate, audio_format_t format,
+        audio_channel_mask_t channelMask, size_t* buffSize)
+{
+    const sp<AudioFlingerClient> afc = getAudioFlingerClient();
+    if (afc == 0) {
+        return NO_INIT;
+    }
+    return afc->getInputBufferSize(sampleRate, format, channelMask, buffSize);
+}
+
+status_t AudioSystem::setVoiceVolume(float value)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    return af->setVoiceVolume(value);
+}
+
+status_t AudioSystem::getRenderPosition(audio_io_handle_t output, uint32_t *halFrames,
+                                        uint32_t *dspFrames)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+
+    return af->getRenderPosition(halFrames, dspFrames, output);
+}
+
+uint32_t AudioSystem::getInputFramesLost(audio_io_handle_t ioHandle)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    uint32_t result = 0;
+    if (af == 0) return result;
+    if (ioHandle == AUDIO_IO_HANDLE_NONE) return result;
+
+    result = af->getInputFramesLost(ioHandle);
+    return result;
+}
+
+audio_unique_id_t AudioSystem::newAudioUniqueId(audio_unique_id_use_t use)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return AUDIO_UNIQUE_ID_ALLOCATE;
+    return af->newAudioUniqueId(use);
+}
+
+void AudioSystem::acquireAudioSessionId(audio_session_t audioSession, pid_t pid)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af != 0) {
+        af->acquireAudioSessionId(audioSession, pid);
+    }
+}
+
+void AudioSystem::releaseAudioSessionId(audio_session_t audioSession, pid_t pid)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af != 0) {
+        af->releaseAudioSessionId(audioSession, pid);
+    }
+}
+
+audio_hw_sync_t AudioSystem::getAudioHwSyncForSession(audio_session_t sessionId)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return AUDIO_HW_SYNC_INVALID;
+    return af->getAudioHwSyncForSession(sessionId);
+}
+
+status_t AudioSystem::systemReady()
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return NO_INIT;
+    return af->systemReady();
+}
+
+status_t AudioSystem::getFrameCountHAL(audio_io_handle_t ioHandle,
+                                       size_t* frameCount)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    sp<AudioIoDescriptor> desc = getIoDescriptor(ioHandle);
+    if (desc == 0) {
+        *frameCount = af->frameCountHAL(ioHandle);
+    } else {
+        *frameCount = desc->mFrameCountHAL;
+    }
+    if (*frameCount == 0) {
+        ALOGE("AudioSystem::getFrameCountHAL failed for ioHandle %d", ioHandle);
+        return BAD_VALUE;
+    }
+
+    ALOGV("getFrameCountHAL() ioHandle %d, frameCount %zu", ioHandle, *frameCount);
+
+    return NO_ERROR;
+}
+
+// ---------------------------------------------------------------------------
+
+
+void AudioSystem::AudioFlingerClient::clearIoCache()
+{
+    Mutex::Autolock _l(mLock);
+    mIoDescriptors.clear();
+    mInBuffSize = 0;
+    mInSamplingRate = 0;
+    mInFormat = AUDIO_FORMAT_DEFAULT;
+    mInChannelMask = AUDIO_CHANNEL_NONE;
+}
+
+void AudioSystem::AudioFlingerClient::binderDied(const wp<IBinder>& who __unused)
+{
+    audio_error_callback cb = NULL;
+    {
+        Mutex::Autolock _l(AudioSystem::gLock);
+        AudioSystem::gAudioFlinger.clear();
+        cb = gAudioErrorCallback;
+    }
+
+    // clear output handles and stream to output map caches
+    clearIoCache();
+
+    if (cb) {
+        cb(DEAD_OBJECT);
+    }
+    ALOGW("AudioFlinger server died!");
+}
+
+void AudioSystem::AudioFlingerClient::ioConfigChanged(audio_io_config_event event,
+                                                      const sp<AudioIoDescriptor>& ioDesc) {
+    ALOGV("ioConfigChanged() event %d", event);
+
+    if (ioDesc == 0 || ioDesc->mIoHandle == AUDIO_IO_HANDLE_NONE) return;
+
+    audio_port_handle_t deviceId = AUDIO_PORT_HANDLE_NONE;
+    Vector < sp<AudioDeviceCallback> > callbacks;
+
+    {
+        Mutex::Autolock _l(mLock);
+
+        switch (event) {
+        case AUDIO_OUTPUT_OPENED:
+        case AUDIO_INPUT_OPENED: {
+            sp<AudioIoDescriptor> oldDesc = getIoDescriptor_l(ioDesc->mIoHandle);
+            if (oldDesc == 0) {
+                mIoDescriptors.add(ioDesc->mIoHandle, ioDesc);
+            } else {
+                deviceId = oldDesc->getDeviceId();
+                mIoDescriptors.replaceValueFor(ioDesc->mIoHandle, ioDesc);
+            }
+
+            if (ioDesc->getDeviceId() != AUDIO_PORT_HANDLE_NONE) {
+                deviceId = ioDesc->getDeviceId();
+                ssize_t ioIndex = mAudioDeviceCallbacks.indexOfKey(ioDesc->mIoHandle);
+                if (ioIndex >= 0) {
+                    callbacks = mAudioDeviceCallbacks.valueAt(ioIndex);
+                }
+            }
+            ALOGV("ioConfigChanged() new %s opened %d samplingRate %u, format %#x channel mask %#x "
+                    "frameCount %zu deviceId %d", event == AUDIO_OUTPUT_OPENED ? "output" : "input",
+                    ioDesc->mIoHandle, ioDesc->mSamplingRate, ioDesc->mFormat, ioDesc->mChannelMask,
+                    ioDesc->mFrameCount, ioDesc->getDeviceId());
+            } break;
+        case AUDIO_OUTPUT_CLOSED:
+        case AUDIO_INPUT_CLOSED: {
+            if (getIoDescriptor_l(ioDesc->mIoHandle) == 0) {
+                ALOGW("ioConfigChanged() closing unknown %s %d",
+                      event == AUDIO_OUTPUT_CLOSED ? "output" : "input", ioDesc->mIoHandle);
+                break;
+            }
+            ALOGV("ioConfigChanged() %s %d closed",
+                  event == AUDIO_OUTPUT_CLOSED ? "output" : "input", ioDesc->mIoHandle);
+
+            mIoDescriptors.removeItem(ioDesc->mIoHandle);
+            mAudioDeviceCallbacks.removeItem(ioDesc->mIoHandle);
+            } break;
+
+        case AUDIO_OUTPUT_CONFIG_CHANGED:
+        case AUDIO_INPUT_CONFIG_CHANGED: {
+            sp<AudioIoDescriptor> oldDesc = getIoDescriptor_l(ioDesc->mIoHandle);
+            if (oldDesc == 0) {
+                ALOGW("ioConfigChanged() modifying unknown output! %d", ioDesc->mIoHandle);
+                break;
+            }
+
+            deviceId = oldDesc->getDeviceId();
+            mIoDescriptors.replaceValueFor(ioDesc->mIoHandle, ioDesc);
+
+            if (deviceId != ioDesc->getDeviceId()) {
+                deviceId = ioDesc->getDeviceId();
+                ssize_t ioIndex = mAudioDeviceCallbacks.indexOfKey(ioDesc->mIoHandle);
+                if (ioIndex >= 0) {
+                    callbacks = mAudioDeviceCallbacks.valueAt(ioIndex);
+                }
+            }
+            ALOGV("ioConfigChanged() new config for %s %d samplingRate %u, format %#x "
+                    "channel mask %#x frameCount %zu frameCountHAL %zu deviceId %d",
+                    event == AUDIO_OUTPUT_CONFIG_CHANGED ? "output" : "input",
+                    ioDesc->mIoHandle, ioDesc->mSamplingRate, ioDesc->mFormat,
+                    ioDesc->mChannelMask, ioDesc->mFrameCount, ioDesc->mFrameCountHAL,
+                    ioDesc->getDeviceId());
+
+        } break;
+        }
+    }
+    // callbacks.size() != 0 =>  ioDesc->mIoHandle and deviceId are valid
+    for (size_t i = 0; i < callbacks.size(); i++) {
+        callbacks[i]->onAudioDeviceUpdate(ioDesc->mIoHandle, deviceId);
+    }
+}
+
+status_t AudioSystem::AudioFlingerClient::getInputBufferSize(
+                                                uint32_t sampleRate, audio_format_t format,
+                                                audio_channel_mask_t channelMask, size_t* buffSize)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) {
+        return PERMISSION_DENIED;
+    }
+    Mutex::Autolock _l(mLock);
+    // Do we have a stale mInBuffSize or are we requesting the input buffer size for new values
+    if ((mInBuffSize == 0) || (sampleRate != mInSamplingRate) || (format != mInFormat)
+        || (channelMask != mInChannelMask)) {
+        size_t inBuffSize = af->getInputBufferSize(sampleRate, format, channelMask);
+        if (inBuffSize == 0) {
+            ALOGE("AudioSystem::getInputBufferSize failed sampleRate %d format %#x channelMask %x",
+                    sampleRate, format, channelMask);
+            return BAD_VALUE;
+        }
+        // A benign race is possible here: we could overwrite a fresher cache entry
+        // save the request params
+        mInSamplingRate = sampleRate;
+        mInFormat = format;
+        mInChannelMask = channelMask;
+
+        mInBuffSize = inBuffSize;
+    }
+
+    *buffSize = mInBuffSize;
+
+    return NO_ERROR;
+}
+
+sp<AudioIoDescriptor> AudioSystem::AudioFlingerClient::getIoDescriptor_l(audio_io_handle_t ioHandle)
+{
+    sp<AudioIoDescriptor> desc;
+    ssize_t index = mIoDescriptors.indexOfKey(ioHandle);
+    if (index >= 0) {
+        desc = mIoDescriptors.valueAt(index);
+    }
+    return desc;
+}
+
+sp<AudioIoDescriptor> AudioSystem::AudioFlingerClient::getIoDescriptor(audio_io_handle_t ioHandle)
+{
+    Mutex::Autolock _l(mLock);
+    return getIoDescriptor_l(ioHandle);
+}
+
+status_t AudioSystem::AudioFlingerClient::addAudioDeviceCallback(
+        const sp<AudioDeviceCallback>& callback, audio_io_handle_t audioIo)
+{
+    Mutex::Autolock _l(mLock);
+    Vector < sp<AudioDeviceCallback> > callbacks;
+    ssize_t ioIndex = mAudioDeviceCallbacks.indexOfKey(audioIo);
+    if (ioIndex >= 0) {
+        callbacks = mAudioDeviceCallbacks.valueAt(ioIndex);
+    }
+
+    for (size_t cbIndex = 0; cbIndex < callbacks.size(); cbIndex++) {
+        if (callbacks[cbIndex] == callback) {
+            return INVALID_OPERATION;
+        }
+    }
+    callbacks.add(callback);
+
+    mAudioDeviceCallbacks.replaceValueFor(audioIo, callbacks);
+    return NO_ERROR;
+}
+
+status_t AudioSystem::AudioFlingerClient::removeAudioDeviceCallback(
+        const sp<AudioDeviceCallback>& callback, audio_io_handle_t audioIo)
+{
+    Mutex::Autolock _l(mLock);
+    ssize_t ioIndex = mAudioDeviceCallbacks.indexOfKey(audioIo);
+    if (ioIndex < 0) {
+        return INVALID_OPERATION;
+    }
+    Vector < sp<AudioDeviceCallback> > callbacks = mAudioDeviceCallbacks.valueAt(ioIndex);
+
+    size_t cbIndex;
+    for (cbIndex = 0; cbIndex < callbacks.size(); cbIndex++) {
+        if (callbacks[cbIndex] == callback) {
+            break;
+        }
+    }
+    if (cbIndex == callbacks.size()) {
+        return INVALID_OPERATION;
+    }
+    callbacks.removeAt(cbIndex);
+    if (callbacks.size() != 0) {
+        mAudioDeviceCallbacks.replaceValueFor(audioIo, callbacks);
+    } else {
+        mAudioDeviceCallbacks.removeItem(audioIo);
+    }
+    return NO_ERROR;
+}
+
+/* static */ void AudioSystem::setErrorCallback(audio_error_callback cb)
+{
+    Mutex::Autolock _l(gLock);
+    gAudioErrorCallback = cb;
+}
+
+/*static*/ void AudioSystem::setDynPolicyCallback(dynamic_policy_callback cb)
+{
+    Mutex::Autolock _l(gLock);
+    gDynPolicyCallback = cb;
+}
+
+/*static*/ void AudioSystem::setRecordConfigCallback(record_config_callback cb)
+{
+    Mutex::Autolock _l(gLock);
+    gRecordConfigCallback = cb;
+}
+
+// client singleton for AudioPolicyService binder interface
+// protected by gLockAPS
+sp<IAudioPolicyService> AudioSystem::gAudioPolicyService;
+sp<AudioSystem::AudioPolicyServiceClient> AudioSystem::gAudioPolicyServiceClient;
+
+
+// establish binder interface to AudioPolicy service
+const sp<IAudioPolicyService> AudioSystem::get_audio_policy_service()
+{
+    sp<IAudioPolicyService> ap;
+    sp<AudioPolicyServiceClient> apc;
+    {
+        Mutex::Autolock _l(gLockAPS);
+        if (gAudioPolicyService == 0) {
+            sp<IServiceManager> sm = defaultServiceManager();
+            sp<IBinder> binder;
+            do {
+                binder = sm->getService(String16("media.audio_policy"));
+                if (binder != 0)
+                    break;
+                ALOGW("AudioPolicyService not published, waiting...");
+                usleep(500000); // 0.5 s
+            } while (true);
+            if (gAudioPolicyServiceClient == NULL) {
+                gAudioPolicyServiceClient = new AudioPolicyServiceClient();
+            }
+            binder->linkToDeath(gAudioPolicyServiceClient);
+            gAudioPolicyService = interface_cast<IAudioPolicyService>(binder);
+            LOG_ALWAYS_FATAL_IF(gAudioPolicyService == 0);
+            apc = gAudioPolicyServiceClient;
+            // Make sure callbacks can be received by gAudioPolicyServiceClient
+            ProcessState::self()->startThreadPool();
+        }
+        ap = gAudioPolicyService;
+    }
+    if (apc != 0) {
+        ap->registerClient(apc);
+    }
+
+    return ap;
+}
+
+// ---------------------------------------------------------------------------
+
+status_t AudioSystem::setDeviceConnectionState(audio_devices_t device,
+                                               audio_policy_dev_state_t state,
+                                               const char *device_address,
+                                               const char *device_name)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    const char *address = "";
+    const char *name = "";
+
+    if (aps == 0) return PERMISSION_DENIED;
+
+    if (device_address != NULL) {
+        address = device_address;
+    }
+    if (device_name != NULL) {
+        name = device_name;
+    }
+    return aps->setDeviceConnectionState(device, state, address, name);
+}
+
+audio_policy_dev_state_t AudioSystem::getDeviceConnectionState(audio_devices_t device,
+                                                  const char *device_address)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
+
+    return aps->getDeviceConnectionState(device, device_address);
+}
+
+status_t AudioSystem::handleDeviceConfigChange(audio_devices_t device,
+                                               const char *device_address,
+                                               const char *device_name)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    const char *address = "";
+    const char *name = "";
+
+    if (aps == 0) return PERMISSION_DENIED;
+
+    if (device_address != NULL) {
+        address = device_address;
+    }
+    if (device_name != NULL) {
+        name = device_name;
+    }
+    return aps->handleDeviceConfigChange(device, address, name);
+}
+
+status_t AudioSystem::setPhoneState(audio_mode_t state)
+{
+    if (uint32_t(state) >= AUDIO_MODE_CNT) return BAD_VALUE;
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+
+    return aps->setPhoneState(state);
+}
+
+status_t AudioSystem::setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->setForceUse(usage, config);
+}
+
+audio_policy_forced_cfg_t AudioSystem::getForceUse(audio_policy_force_use_t usage)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return AUDIO_POLICY_FORCE_NONE;
+    return aps->getForceUse(usage);
+}
+
+
+audio_io_handle_t AudioSystem::getOutput(audio_stream_type_t stream,
+                                    uint32_t samplingRate,
+                                    audio_format_t format,
+                                    audio_channel_mask_t channelMask,
+                                    audio_output_flags_t flags,
+                                    const audio_offload_info_t *offloadInfo)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return 0;
+    return aps->getOutput(stream, samplingRate, format, channelMask, flags, offloadInfo);
+}
+
+status_t AudioSystem::getOutputForAttr(const audio_attributes_t *attr,
+                                        audio_io_handle_t *output,
+                                        audio_session_t session,
+                                        audio_stream_type_t *stream,
+                                        uid_t uid,
+                                        const audio_config_t *config,
+                                        audio_output_flags_t flags,
+                                        audio_port_handle_t selectedDeviceId,
+                                        audio_port_handle_t *portId)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return NO_INIT;
+    return aps->getOutputForAttr(attr, output, session, stream, uid,
+                                 config,
+                                 flags, selectedDeviceId, portId);
+}
+
+status_t AudioSystem::startOutput(audio_io_handle_t output,
+                                  audio_stream_type_t stream,
+                                  audio_session_t session)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->startOutput(output, stream, session);
+}
+
+status_t AudioSystem::stopOutput(audio_io_handle_t output,
+                                 audio_stream_type_t stream,
+                                 audio_session_t session)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->stopOutput(output, stream, session);
+}
+
+void AudioSystem::releaseOutput(audio_io_handle_t output,
+                                audio_stream_type_t stream,
+                                audio_session_t session)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return;
+    aps->releaseOutput(output, stream, session);
+}
+
+status_t AudioSystem::getInputForAttr(const audio_attributes_t *attr,
+                                audio_io_handle_t *input,
+                                audio_session_t session,
+                                pid_t pid,
+                                uid_t uid,
+                                const audio_config_base_t *config,
+                                audio_input_flags_t flags,
+                                audio_port_handle_t selectedDeviceId,
+                                audio_port_handle_t *portId)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return NO_INIT;
+    return aps->getInputForAttr(
+            attr, input, session, pid, uid,
+            config, flags, selectedDeviceId, portId);
+}
+
+status_t AudioSystem::startInput(audio_io_handle_t input,
+                                 audio_session_t session)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->startInput(input, session);
+}
+
+status_t AudioSystem::stopInput(audio_io_handle_t input,
+                                audio_session_t session)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->stopInput(input, session);
+}
+
+void AudioSystem::releaseInput(audio_io_handle_t input,
+                               audio_session_t session)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return;
+    aps->releaseInput(input, session);
+}
+
+status_t AudioSystem::initStreamVolume(audio_stream_type_t stream,
+                                    int indexMin,
+                                    int indexMax)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->initStreamVolume(stream, indexMin, indexMax);
+}
+
+status_t AudioSystem::setStreamVolumeIndex(audio_stream_type_t stream,
+                                           int index,
+                                           audio_devices_t device)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->setStreamVolumeIndex(stream, index, device);
+}
+
+status_t AudioSystem::getStreamVolumeIndex(audio_stream_type_t stream,
+                                           int *index,
+                                           audio_devices_t device)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->getStreamVolumeIndex(stream, index, device);
+}
+
+uint32_t AudioSystem::getStrategyForStream(audio_stream_type_t stream)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return 0;
+    return aps->getStrategyForStream(stream);
+}
+
+audio_devices_t AudioSystem::getDevicesForStream(audio_stream_type_t stream)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return AUDIO_DEVICE_NONE;
+    return aps->getDevicesForStream(stream);
+}
+
+audio_io_handle_t AudioSystem::getOutputForEffect(const effect_descriptor_t *desc)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    // FIXME change return type to status_t, and return PERMISSION_DENIED here
+    if (aps == 0) return AUDIO_IO_HANDLE_NONE;
+    return aps->getOutputForEffect(desc);
+}
+
+status_t AudioSystem::registerEffect(const effect_descriptor_t *desc,
+                                audio_io_handle_t io,
+                                uint32_t strategy,
+                                audio_session_t session,
+                                int id)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->registerEffect(desc, io, strategy, session, id);
+}
+
+status_t AudioSystem::unregisterEffect(int id)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->unregisterEffect(id);
+}
+
+status_t AudioSystem::setEffectEnabled(int id, bool enabled)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->setEffectEnabled(id, enabled);
+}
+
+status_t AudioSystem::isStreamActive(audio_stream_type_t stream, bool* state, uint32_t inPastMs)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    if (state == NULL) return BAD_VALUE;
+    *state = aps->isStreamActive(stream, inPastMs);
+    return NO_ERROR;
+}
+
+status_t AudioSystem::isStreamActiveRemotely(audio_stream_type_t stream, bool* state,
+        uint32_t inPastMs)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    if (state == NULL) return BAD_VALUE;
+    *state = aps->isStreamActiveRemotely(stream, inPastMs);
+    return NO_ERROR;
+}
+
+status_t AudioSystem::isSourceActive(audio_source_t stream, bool* state)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    if (state == NULL) return BAD_VALUE;
+    *state = aps->isSourceActive(stream);
+    return NO_ERROR;
+}
+
+uint32_t AudioSystem::getPrimaryOutputSamplingRate()
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return 0;
+    return af->getPrimaryOutputSamplingRate();
+}
+
+size_t AudioSystem::getPrimaryOutputFrameCount()
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return 0;
+    return af->getPrimaryOutputFrameCount();
+}
+
+status_t AudioSystem::setLowRamDevice(bool isLowRamDevice)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    return af->setLowRamDevice(isLowRamDevice);
+}
+
+void AudioSystem::clearAudioConfigCache()
+{
+    // called by restoreTrack_l(), which needs new IAudioFlinger and IAudioPolicyService instances
+    ALOGV("clearAudioConfigCache()");
+    {
+        Mutex::Autolock _l(gLock);
+        if (gAudioFlingerClient != 0) {
+            gAudioFlingerClient->clearIoCache();
+        }
+        gAudioFlinger.clear();
+    }
+    {
+        Mutex::Autolock _l(gLockAPS);
+        gAudioPolicyService.clear();
+    }
+}
+
+bool AudioSystem::isOffloadSupported(const audio_offload_info_t& info)
+{
+    ALOGV("isOffloadSupported()");
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return false;
+    return aps->isOffloadSupported(info);
+}
+
+status_t AudioSystem::listAudioPorts(audio_port_role_t role,
+                                     audio_port_type_t type,
+                                     unsigned int *num_ports,
+                                     struct audio_port *ports,
+                                     unsigned int *generation)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->listAudioPorts(role, type, num_ports, ports, generation);
+}
+
+status_t AudioSystem::getAudioPort(struct audio_port *port)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->getAudioPort(port);
+}
+
+status_t AudioSystem::createAudioPatch(const struct audio_patch *patch,
+                                   audio_patch_handle_t *handle)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->createAudioPatch(patch, handle);
+}
+
+status_t AudioSystem::releaseAudioPatch(audio_patch_handle_t handle)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->releaseAudioPatch(handle);
+}
+
+status_t AudioSystem::listAudioPatches(unsigned int *num_patches,
+                                  struct audio_patch *patches,
+                                  unsigned int *generation)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->listAudioPatches(num_patches, patches, generation);
+}
+
+status_t AudioSystem::setAudioPortConfig(const struct audio_port_config *config)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->setAudioPortConfig(config);
+}
+
+status_t AudioSystem::addAudioPortCallback(const sp<AudioPortCallback>& callback)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+
+    Mutex::Autolock _l(gLockAPS);
+    if (gAudioPolicyServiceClient == 0) {
+        return NO_INIT;
+    }
+    int ret = gAudioPolicyServiceClient->addAudioPortCallback(callback);
+    if (ret == 1) {
+        aps->setAudioPortCallbacksEnabled(true);
+    }
+    return (ret < 0) ? INVALID_OPERATION : NO_ERROR;
+}
+
+/*static*/
+status_t AudioSystem::removeAudioPortCallback(const sp<AudioPortCallback>& callback)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+
+    Mutex::Autolock _l(gLockAPS);
+    if (gAudioPolicyServiceClient == 0) {
+        return NO_INIT;
+    }
+    int ret = gAudioPolicyServiceClient->removeAudioPortCallback(callback);
+    if (ret == 0) {
+        aps->setAudioPortCallbacksEnabled(false);
+    }
+    return (ret < 0) ? INVALID_OPERATION : NO_ERROR;
+}
+
+status_t AudioSystem::addAudioDeviceCallback(
+        const sp<AudioDeviceCallback>& callback, audio_io_handle_t audioIo)
+{
+    const sp<AudioFlingerClient> afc = getAudioFlingerClient();
+    if (afc == 0) {
+        return NO_INIT;
+    }
+    status_t status = afc->addAudioDeviceCallback(callback, audioIo);
+    if (status == NO_ERROR) {
+        const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+        if (af != 0) {
+            af->registerClient(afc);
+        }
+    }
+    return status;
+}
+
+status_t AudioSystem::removeAudioDeviceCallback(
+        const sp<AudioDeviceCallback>& callback, audio_io_handle_t audioIo)
+{
+    const sp<AudioFlingerClient> afc = getAudioFlingerClient();
+    if (afc == 0) {
+        return NO_INIT;
+    }
+    return afc->removeAudioDeviceCallback(callback, audioIo);
+}
+
+audio_port_handle_t AudioSystem::getDeviceIdForIo(audio_io_handle_t audioIo)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    const sp<AudioIoDescriptor> desc = getIoDescriptor(audioIo);
+    if (desc == 0) {
+        return AUDIO_PORT_HANDLE_NONE;
+    }
+    return desc->getDeviceId();
+}
+
+status_t AudioSystem::acquireSoundTriggerSession(audio_session_t *session,
+                                       audio_io_handle_t *ioHandle,
+                                       audio_devices_t *device)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->acquireSoundTriggerSession(session, ioHandle, device);
+}
+
+status_t AudioSystem::releaseSoundTriggerSession(audio_session_t session)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->releaseSoundTriggerSession(session);
+}
+
+audio_mode_t AudioSystem::getPhoneState()
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return AUDIO_MODE_INVALID;
+    return aps->getPhoneState();
+}
+
+status_t AudioSystem::registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->registerPolicyMixes(mixes, registration);
+}
+
+status_t AudioSystem::startAudioSource(const struct audio_port_config *source,
+                                       const audio_attributes_t *attributes,
+                                       audio_patch_handle_t *handle)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->startAudioSource(source, attributes, handle);
+}
+
+status_t AudioSystem::stopAudioSource(audio_patch_handle_t handle)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->stopAudioSource(handle);
+}
+
+status_t AudioSystem::setMasterMono(bool mono)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->setMasterMono(mono);
+}
+
+status_t AudioSystem::getMasterMono(bool *mono)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+    return aps->getMasterMono(mono);
+}
+
+// ---------------------------------------------------------------------------
+
+int AudioSystem::AudioPolicyServiceClient::addAudioPortCallback(
+        const sp<AudioPortCallback>& callback)
+{
+    Mutex::Autolock _l(mLock);
+    for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
+        if (mAudioPortCallbacks[i] == callback) {
+            return -1;
+        }
+    }
+    mAudioPortCallbacks.add(callback);
+    return mAudioPortCallbacks.size();
+}
+
+int AudioSystem::AudioPolicyServiceClient::removeAudioPortCallback(
+        const sp<AudioPortCallback>& callback)
+{
+    Mutex::Autolock _l(mLock);
+    size_t i;
+    for (i = 0; i < mAudioPortCallbacks.size(); i++) {
+        if (mAudioPortCallbacks[i] == callback) {
+            break;
+        }
+    }
+    if (i == mAudioPortCallbacks.size()) {
+        return -1;
+    }
+    mAudioPortCallbacks.removeAt(i);
+    return mAudioPortCallbacks.size();
+}
+
+
+void AudioSystem::AudioPolicyServiceClient::onAudioPortListUpdate()
+{
+    Mutex::Autolock _l(mLock);
+    for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
+        mAudioPortCallbacks[i]->onAudioPortListUpdate();
+    }
+}
+
+void AudioSystem::AudioPolicyServiceClient::onAudioPatchListUpdate()
+{
+    Mutex::Autolock _l(mLock);
+    for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
+        mAudioPortCallbacks[i]->onAudioPatchListUpdate();
+    }
+}
+
+void AudioSystem::AudioPolicyServiceClient::onDynamicPolicyMixStateUpdate(
+        String8 regId, int32_t state)
+{
+    ALOGV("AudioPolicyServiceClient::onDynamicPolicyMixStateUpdate(%s, %d)", regId.string(), state);
+    dynamic_policy_callback cb = NULL;
+    {
+        Mutex::Autolock _l(AudioSystem::gLock);
+        cb = gDynPolicyCallback;
+    }
+
+    if (cb != NULL) {
+        cb(DYNAMIC_POLICY_EVENT_MIX_STATE_UPDATE, regId, state);
+    }
+}
+
+void AudioSystem::AudioPolicyServiceClient::onRecordingConfigurationUpdate(
+        int event, audio_session_t session, audio_source_t source,
+        const audio_config_base_t *clientConfig, const audio_config_base_t *deviceConfig,
+        audio_patch_handle_t patchHandle) {
+    record_config_callback cb = NULL;
+    {
+        Mutex::Autolock _l(AudioSystem::gLock);
+        cb = gRecordConfigCallback;
+    }
+
+    if (cb != NULL) {
+        cb(event, session, source, clientConfig, deviceConfig, patchHandle);
+    }
+}
+
+void AudioSystem::AudioPolicyServiceClient::binderDied(const wp<IBinder>& who __unused)
+{
+    {
+        Mutex::Autolock _l(mLock);
+        for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
+            mAudioPortCallbacks[i]->onServiceDied();
+        }
+    }
+    {
+        Mutex::Autolock _l(gLockAPS);
+        AudioSystem::gAudioPolicyService.clear();
+    }
+
+    ALOGW("AudioPolicyService server died!");
+}
+
+} // namespace android
diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
new file mode 100644
index 0000000..ffb7703
--- /dev/null
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -0,0 +1,3031 @@
+/*
+**
+** Copyright 2007, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "AudioTrack"
+
+#include <inttypes.h>
+#include <math.h>
+#include <sys/resource.h>
+
+#include <audio_utils/primitives.h>
+#include <binder/IPCThreadState.h>
+#include <media/AudioTrack.h>
+#include <utils/Log.h>
+#include <private/media/AudioTrackShared.h>
+#include <media/IAudioFlinger.h>
+#include <media/AudioPolicyHelper.h>
+#include <media/AudioResamplerPublic.h>
+
+#define WAIT_PERIOD_MS                  10
+#define WAIT_STREAM_END_TIMEOUT_SEC     120
+static const int kMaxLoopCountNotifications = 32;
+
+namespace android {
+// ---------------------------------------------------------------------------
+
+// TODO: Move to a separate .h
+
+template <typename T>
+static inline const T &min(const T &x, const T &y) {
+    return x < y ? x : y;
+}
+
+template <typename T>
+static inline const T &max(const T &x, const T &y) {
+    return x > y ? x : y;
+}
+
+static const int32_t NANOS_PER_SECOND = 1000000000;
+
+static inline nsecs_t framesToNanoseconds(ssize_t frames, uint32_t sampleRate, float speed)
+{
+    return ((double)frames * 1000000000) / ((double)sampleRate * speed);
+}
+
+static int64_t convertTimespecToUs(const struct timespec &tv)
+{
+    return tv.tv_sec * 1000000ll + tv.tv_nsec / 1000;
+}
+
+static inline nsecs_t convertTimespecToNs(const struct timespec &tv)
+{
+    return tv.tv_sec * (long long)NANOS_PER_SECOND + tv.tv_nsec;
+}
+
+// current monotonic time in microseconds.
+static int64_t getNowUs()
+{
+    struct timespec tv;
+    (void) clock_gettime(CLOCK_MONOTONIC, &tv);
+    return convertTimespecToUs(tv);
+}
+
+// FIXME: we don't use the pitch setting in the time stretcher (not working);
+// instead we emulate it using our sample rate converter.
+static const bool kFixPitch = true; // enable pitch fix
+static inline uint32_t adjustSampleRate(uint32_t sampleRate, float pitch)
+{
+    return kFixPitch ? (sampleRate * pitch + 0.5) : sampleRate;
+}
+
+static inline float adjustSpeed(float speed, float pitch)
+{
+    return kFixPitch ? speed / max(pitch, AUDIO_TIMESTRETCH_PITCH_MIN_DELTA) : speed;
+}
+
+static inline float adjustPitch(float pitch)
+{
+    return kFixPitch ? AUDIO_TIMESTRETCH_PITCH_NORMAL : pitch;
+}
+
+// Must match similar computation in createTrack_l in Threads.cpp.
+// TODO: Move to a common library
+static size_t calculateMinFrameCount(
+        uint32_t afLatencyMs, uint32_t afFrameCount, uint32_t afSampleRate,
+        uint32_t sampleRate, float speed /*, uint32_t notificationsPerBufferReq*/)
+{
+    // Ensure that buffer depth covers at least audio hardware latency
+    uint32_t minBufCount = afLatencyMs / ((1000 * afFrameCount) / afSampleRate);
+    if (minBufCount < 2) {
+        minBufCount = 2;
+    }
+#if 0
+    // The notificationsPerBufferReq parameter is not yet used for non-fast tracks,
+    // but keeping the code here to make it easier to add later.
+    if (minBufCount < notificationsPerBufferReq) {
+        minBufCount = notificationsPerBufferReq;
+    }
+#endif
+    ALOGV("calculateMinFrameCount afLatency %u  afFrameCount %u  afSampleRate %u  "
+            "sampleRate %u  speed %f  minBufCount: %u" /*"  notificationsPerBufferReq %u"*/,
+            afLatencyMs, afFrameCount, afSampleRate, sampleRate, speed, minBufCount
+            /*, notificationsPerBufferReq*/);
+    return minBufCount * sourceFramesNeededWithTimestretch(
+            sampleRate, afFrameCount, afSampleRate, speed);
+}
+
+// static
+status_t AudioTrack::getMinFrameCount(
+        size_t* frameCount,
+        audio_stream_type_t streamType,
+        uint32_t sampleRate)
+{
+    if (frameCount == NULL) {
+        return BAD_VALUE;
+    }
+
+    // FIXME handle in server, like createTrack_l(), possible missing info:
+    //          audio_io_handle_t output
+    //          audio_format_t format
+    //          audio_channel_mask_t channelMask
+    //          audio_output_flags_t flags (FAST)
+    uint32_t afSampleRate;
+    status_t status;
+    status = AudioSystem::getOutputSamplingRate(&afSampleRate, streamType);
+    if (status != NO_ERROR) {
+        ALOGE("Unable to query output sample rate for stream type %d; status %d",
+                streamType, status);
+        return status;
+    }
+    size_t afFrameCount;
+    status = AudioSystem::getOutputFrameCount(&afFrameCount, streamType);
+    if (status != NO_ERROR) {
+        ALOGE("Unable to query output frame count for stream type %d; status %d",
+                streamType, status);
+        return status;
+    }
+    uint32_t afLatency;
+    status = AudioSystem::getOutputLatency(&afLatency, streamType);
+    if (status != NO_ERROR) {
+        ALOGE("Unable to query output latency for stream type %d; status %d",
+                streamType, status);
+        return status;
+    }
+
+    // When called from createTrack, speed is 1.0f (normal speed).
+    // This is rechecked again on setting playback rate (TODO: on setting sample rate, too).
+    *frameCount = calculateMinFrameCount(afLatency, afFrameCount, afSampleRate, sampleRate, 1.0f
+            /*, 0 notificationsPerBufferReq*/);
+
+    // The formula above should always produce a non-zero value under normal circumstances:
+    // AudioTrack.SAMPLE_RATE_HZ_MIN <= sampleRate <= AudioTrack.SAMPLE_RATE_HZ_MAX.
+    // Return error in the unlikely event that it does not, as that's part of the API contract.
+    if (*frameCount == 0) {
+        ALOGE("AudioTrack::getMinFrameCount failed for streamType %d, sampleRate %u",
+                streamType, sampleRate);
+        return BAD_VALUE;
+    }
+    ALOGV("getMinFrameCount=%zu: afFrameCount=%zu, afSampleRate=%u, afLatency=%u",
+            *frameCount, afFrameCount, afSampleRate, afLatency);
+    return NO_ERROR;
+}
+
+// ---------------------------------------------------------------------------
+
+AudioTrack::AudioTrack()
+    : mStatus(NO_INIT),
+      mState(STATE_STOPPED),
+      mPreviousPriority(ANDROID_PRIORITY_NORMAL),
+      mPreviousSchedulingGroup(SP_DEFAULT),
+      mPausedPosition(0),
+      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
+      mPortId(AUDIO_PORT_HANDLE_NONE)
+{
+    mAttributes.content_type = AUDIO_CONTENT_TYPE_UNKNOWN;
+    mAttributes.usage = AUDIO_USAGE_UNKNOWN;
+    mAttributes.flags = 0x0;
+    strcpy(mAttributes.tags, "");
+}
+
+AudioTrack::AudioTrack(
+        audio_stream_type_t streamType,
+        uint32_t sampleRate,
+        audio_format_t format,
+        audio_channel_mask_t channelMask,
+        size_t frameCount,
+        audio_output_flags_t flags,
+        callback_t cbf,
+        void* user,
+        int32_t notificationFrames,
+        audio_session_t sessionId,
+        transfer_type transferType,
+        const audio_offload_info_t *offloadInfo,
+        uid_t uid,
+        pid_t pid,
+        const audio_attributes_t* pAttributes,
+        bool doNotReconnect,
+        float maxRequiredSpeed)
+    : mStatus(NO_INIT),
+      mState(STATE_STOPPED),
+      mPreviousPriority(ANDROID_PRIORITY_NORMAL),
+      mPreviousSchedulingGroup(SP_DEFAULT),
+      mPausedPosition(0),
+      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
+      mPortId(AUDIO_PORT_HANDLE_NONE)
+{
+    mStatus = set(streamType, sampleRate, format, channelMask,
+            frameCount, flags, cbf, user, notificationFrames,
+            0 /*sharedBuffer*/, false /*threadCanCallJava*/, sessionId, transferType,
+            offloadInfo, uid, pid, pAttributes, doNotReconnect, maxRequiredSpeed);
+}
+
+AudioTrack::AudioTrack(
+        audio_stream_type_t streamType,
+        uint32_t sampleRate,
+        audio_format_t format,
+        audio_channel_mask_t channelMask,
+        const sp<IMemory>& sharedBuffer,
+        audio_output_flags_t flags,
+        callback_t cbf,
+        void* user,
+        int32_t notificationFrames,
+        audio_session_t sessionId,
+        transfer_type transferType,
+        const audio_offload_info_t *offloadInfo,
+        uid_t uid,
+        pid_t pid,
+        const audio_attributes_t* pAttributes,
+        bool doNotReconnect,
+        float maxRequiredSpeed)
+    : mStatus(NO_INIT),
+      mState(STATE_STOPPED),
+      mPreviousPriority(ANDROID_PRIORITY_NORMAL),
+      mPreviousSchedulingGroup(SP_DEFAULT),
+      mPausedPosition(0),
+      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
+      mPortId(AUDIO_PORT_HANDLE_NONE)
+{
+    mStatus = set(streamType, sampleRate, format, channelMask,
+            0 /*frameCount*/, flags, cbf, user, notificationFrames,
+            sharedBuffer, false /*threadCanCallJava*/, sessionId, transferType, offloadInfo,
+            uid, pid, pAttributes, doNotReconnect, maxRequiredSpeed);
+}
+
+AudioTrack::~AudioTrack()
+{
+    if (mStatus == NO_ERROR) {
+        // Make sure that callback function exits in the case where
+        // it is looping on buffer full condition in obtainBuffer().
+        // Otherwise the callback thread will never exit.
+        stop();
+        if (mAudioTrackThread != 0) {
+            mProxy->interrupt();
+            mAudioTrackThread->requestExit();   // see comment in AudioTrack.h
+            mAudioTrackThread->requestExitAndWait();
+            mAudioTrackThread.clear();
+        }
+        // No lock here: worst case we remove a NULL callback which will be a nop
+        if (mDeviceCallback != 0 && mOutput != AUDIO_IO_HANDLE_NONE) {
+            AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mOutput);
+        }
+        IInterface::asBinder(mAudioTrack)->unlinkToDeath(mDeathNotifier, this);
+        mAudioTrack.clear();
+        mCblkMemory.clear();
+        mSharedBuffer.clear();
+        IPCThreadState::self()->flushCommands();
+        ALOGV("~AudioTrack, releasing session id %d from %d on behalf of %d",
+                mSessionId, IPCThreadState::self()->getCallingPid(), mClientPid);
+        AudioSystem::releaseAudioSessionId(mSessionId, mClientPid);
+    }
+}
+
+status_t AudioTrack::set(
+        audio_stream_type_t streamType,
+        uint32_t sampleRate,
+        audio_format_t format,
+        audio_channel_mask_t channelMask,
+        size_t frameCount,
+        audio_output_flags_t flags,
+        callback_t cbf,
+        void* user,
+        int32_t notificationFrames,
+        const sp<IMemory>& sharedBuffer,
+        bool threadCanCallJava,
+        audio_session_t sessionId,
+        transfer_type transferType,
+        const audio_offload_info_t *offloadInfo,
+        uid_t uid,
+        pid_t pid,
+        const audio_attributes_t* pAttributes,
+        bool doNotReconnect,
+        float maxRequiredSpeed)
+{
+    ALOGV("set(): streamType %d, sampleRate %u, format %#x, channelMask %#x, frameCount %zu, "
+          "flags #%x, notificationFrames %d, sessionId %d, transferType %d, uid %d, pid %d",
+          streamType, sampleRate, format, channelMask, frameCount, flags, notificationFrames,
+          sessionId, transferType, uid, pid);
+
+    mThreadCanCallJava = threadCanCallJava;
+
+    switch (transferType) {
+    case TRANSFER_DEFAULT:
+        if (sharedBuffer != 0) {
+            transferType = TRANSFER_SHARED;
+        } else if (cbf == NULL || threadCanCallJava) {
+            transferType = TRANSFER_SYNC;
+        } else {
+            transferType = TRANSFER_CALLBACK;
+        }
+        break;
+    case TRANSFER_CALLBACK:
+        if (cbf == NULL || sharedBuffer != 0) {
+            ALOGE("Transfer type TRANSFER_CALLBACK but cbf == NULL || sharedBuffer != 0");
+            return BAD_VALUE;
+        }
+        break;
+    case TRANSFER_OBTAIN:
+    case TRANSFER_SYNC:
+        if (sharedBuffer != 0) {
+            ALOGE("Transfer type TRANSFER_OBTAIN but sharedBuffer != 0");
+            return BAD_VALUE;
+        }
+        break;
+    case TRANSFER_SHARED:
+        if (sharedBuffer == 0) {
+            ALOGE("Transfer type TRANSFER_SHARED but sharedBuffer == 0");
+            return BAD_VALUE;
+        }
+        break;
+    default:
+        ALOGE("Invalid transfer type %d", transferType);
+        return BAD_VALUE;
+    }
+    mSharedBuffer = sharedBuffer;
+    mTransfer = transferType;
+    mDoNotReconnect = doNotReconnect;
+
+    ALOGV_IF(sharedBuffer != 0, "sharedBuffer: %p, size: %zu", sharedBuffer->pointer(),
+            sharedBuffer->size());
+
+    ALOGV("set() streamType %d frameCount %zu flags %04x", streamType, frameCount, flags);
+
+    // invariant that mAudioTrack != 0 is true only after set() returns successfully
+    if (mAudioTrack != 0) {
+        ALOGE("Track already in use");
+        return INVALID_OPERATION;
+    }
+
+    // handle default values first.
+    if (streamType == AUDIO_STREAM_DEFAULT) {
+        streamType = AUDIO_STREAM_MUSIC;
+    }
+    if (pAttributes == NULL) {
+        if (uint32_t(streamType) >= AUDIO_STREAM_PUBLIC_CNT) {
+            ALOGE("Invalid stream type %d", streamType);
+            return BAD_VALUE;
+        }
+        mStreamType = streamType;
+
+    } else {
+        // stream type shouldn't be looked at, this track has audio attributes
+        memcpy(&mAttributes, pAttributes, sizeof(audio_attributes_t));
+        ALOGV("Building AudioTrack with attributes: usage=%d content=%d flags=0x%x tags=[%s]",
+                mAttributes.usage, mAttributes.content_type, mAttributes.flags, mAttributes.tags);
+        mStreamType = AUDIO_STREAM_DEFAULT;
+        if ((mAttributes.flags & AUDIO_FLAG_HW_AV_SYNC) != 0) {
+            flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_HW_AV_SYNC);
+        }
+        if ((mAttributes.flags & AUDIO_FLAG_LOW_LATENCY) != 0) {
+            flags = (audio_output_flags_t) (flags | AUDIO_OUTPUT_FLAG_FAST);
+        }
+        // check deep buffer after flags have been modified above
+        if (flags == AUDIO_OUTPUT_FLAG_NONE && (mAttributes.flags & AUDIO_FLAG_DEEP_BUFFER) != 0) {
+            flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
+        }
+    }
+
+    // these below should probably come from the audioFlinger too...
+    if (format == AUDIO_FORMAT_DEFAULT) {
+        format = AUDIO_FORMAT_PCM_16_BIT;
+    } else if (format == AUDIO_FORMAT_IEC61937) { // HDMI pass-through?
+        mAttributes.flags |= AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO;
+    }
+
+    // validate parameters
+    if (!audio_is_valid_format(format)) {
+        ALOGE("Invalid format %#x", format);
+        return BAD_VALUE;
+    }
+    mFormat = format;
+
+    if (!audio_is_output_channel(channelMask)) {
+        ALOGE("Invalid channel mask %#x", channelMask);
+        return BAD_VALUE;
+    }
+    mChannelMask = channelMask;
+    uint32_t channelCount = audio_channel_count_from_out_mask(channelMask);
+    mChannelCount = channelCount;
+
+    // force direct flag if format is not linear PCM
+    // or offload was requested
+    if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)
+            || !audio_is_linear_pcm(format)) {
+        ALOGV( (flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)
+                    ? "Offload request, forcing to Direct Output"
+                    : "Not linear PCM, forcing to Direct Output");
+        flags = (audio_output_flags_t)
+                // FIXME why can't we allow direct AND fast?
+                ((flags | AUDIO_OUTPUT_FLAG_DIRECT) & ~AUDIO_OUTPUT_FLAG_FAST);
+    }
+
+    // force direct flag if HW A/V sync requested
+    if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) {
+        flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT);
+    }
+
+    if (flags & AUDIO_OUTPUT_FLAG_DIRECT) {
+        if (audio_has_proportional_frames(format)) {
+            mFrameSize = channelCount * audio_bytes_per_sample(format);
+        } else {
+            mFrameSize = sizeof(uint8_t);
+        }
+    } else {
+        ALOG_ASSERT(audio_has_proportional_frames(format));
+        mFrameSize = channelCount * audio_bytes_per_sample(format);
+        // createTrack will return an error if PCM format is not supported by server,
+        // so no need to check for specific PCM formats here
+    }
+
+    // sampling rate must be specified for direct outputs
+    if (sampleRate == 0 && (flags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) {
+        return BAD_VALUE;
+    }
+    mSampleRate = sampleRate;
+    mOriginalSampleRate = sampleRate;
+    mPlaybackRate = AUDIO_PLAYBACK_RATE_DEFAULT;
+    // 1.0 <= mMaxRequiredSpeed <= AUDIO_TIMESTRETCH_SPEED_MAX
+    mMaxRequiredSpeed = min(max(maxRequiredSpeed, 1.0f), AUDIO_TIMESTRETCH_SPEED_MAX);
+
+    // Make copy of input parameter offloadInfo so that in the future:
+    //  (a) createTrack_l doesn't need it as an input parameter
+    //  (b) we can support re-creation of offloaded tracks
+    if (offloadInfo != NULL) {
+        mOffloadInfoCopy = *offloadInfo;
+        mOffloadInfo = &mOffloadInfoCopy;
+    } else {
+        mOffloadInfo = NULL;
+        memset(&mOffloadInfoCopy, 0, sizeof(audio_offload_info_t));
+    }
+
+    mVolume[AUDIO_INTERLEAVE_LEFT] = 1.0f;
+    mVolume[AUDIO_INTERLEAVE_RIGHT] = 1.0f;
+    mSendLevel = 0.0f;
+    // mFrameCount is initialized in createTrack_l
+    mReqFrameCount = frameCount;
+    if (notificationFrames >= 0) {
+        mNotificationFramesReq = notificationFrames;
+        mNotificationsPerBufferReq = 0;
+    } else {
+        if (!(flags & AUDIO_OUTPUT_FLAG_FAST)) {
+            ALOGE("notificationFrames=%d not permitted for non-fast track",
+                    notificationFrames);
+            return BAD_VALUE;
+        }
+        if (frameCount > 0) {
+            ALOGE("notificationFrames=%d not permitted with non-zero frameCount=%zu",
+                    notificationFrames, frameCount);
+            return BAD_VALUE;
+        }
+        mNotificationFramesReq = 0;
+        const uint32_t minNotificationsPerBuffer = 1;
+        const uint32_t maxNotificationsPerBuffer = 8;
+        mNotificationsPerBufferReq = min(maxNotificationsPerBuffer,
+                max((uint32_t) -notificationFrames, minNotificationsPerBuffer));
+        ALOGW_IF(mNotificationsPerBufferReq != (uint32_t) -notificationFrames,
+                "notificationFrames=%d clamped to the range -%u to -%u",
+                notificationFrames, minNotificationsPerBuffer, maxNotificationsPerBuffer);
+    }
+    mNotificationFramesAct = 0;
+    if (sessionId == AUDIO_SESSION_ALLOCATE) {
+        mSessionId = (audio_session_t) AudioSystem::newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
+    } else {
+        mSessionId = sessionId;
+    }
+    int callingpid = IPCThreadState::self()->getCallingPid();
+    int mypid = getpid();
+    if (uid == AUDIO_UID_INVALID || (callingpid != mypid)) {
+        mClientUid = IPCThreadState::self()->getCallingUid();
+    } else {
+        mClientUid = uid;
+    }
+    if (pid == -1 || (callingpid != mypid)) {
+        mClientPid = callingpid;
+    } else {
+        mClientPid = pid;
+    }
+    mAuxEffectId = 0;
+    mOrigFlags = mFlags = flags;
+    mCbf = cbf;
+
+    if (cbf != NULL) {
+        mAudioTrackThread = new AudioTrackThread(*this, threadCanCallJava);
+        mAudioTrackThread->run("AudioTrack", ANDROID_PRIORITY_AUDIO, 0 /*stack*/);
+        // thread begins in paused state, and will not reference us until start()
+    }
+
+    // create the IAudioTrack
+    status_t status = createTrack_l();
+
+    if (status != NO_ERROR) {
+        if (mAudioTrackThread != 0) {
+            mAudioTrackThread->requestExit();   // see comment in AudioTrack.h
+            mAudioTrackThread->requestExitAndWait();
+            mAudioTrackThread.clear();
+        }
+        return status;
+    }
+
+    mStatus = NO_ERROR;
+    mUserData = user;
+    mLoopCount = 0;
+    mLoopStart = 0;
+    mLoopEnd = 0;
+    mLoopCountNotified = 0;
+    mMarkerPosition = 0;
+    mMarkerReached = false;
+    mNewPosition = 0;
+    mUpdatePeriod = 0;
+    mPosition = 0;
+    mReleased = 0;
+    mStartUs = 0;
+    AudioSystem::acquireAudioSessionId(mSessionId, mClientPid);
+    mSequence = 1;
+    mObservedSequence = mSequence;
+    mInUnderrun = false;
+    mPreviousTimestampValid = false;
+    mTimestampStartupGlitchReported = false;
+    mRetrogradeMotionReported = false;
+    mPreviousLocation = ExtendedTimestamp::LOCATION_INVALID;
+    mStartTs.mPosition = 0;
+    mUnderrunCountOffset = 0;
+    mFramesWritten = 0;
+    mFramesWrittenServerOffset = 0;
+    mFramesWrittenAtRestore = -1; // -1 is a unique initializer.
+    mVolumeHandler = new VolumeHandler();
+    return NO_ERROR;
+}
+
+// -------------------------------------------------------------------------
+
+status_t AudioTrack::start()
+{
+    AutoMutex lock(mLock);
+
+    if (mState == STATE_ACTIVE) {
+        return INVALID_OPERATION;
+    }
+
+    mInUnderrun = true;
+
+    State previousState = mState;
+    if (previousState == STATE_PAUSED_STOPPING) {
+        mState = STATE_STOPPING;
+    } else {
+        mState = STATE_ACTIVE;
+    }
+    (void) updateAndGetPosition_l();
+
+    // save start timestamp
+    if (isOffloadedOrDirect_l()) {
+        if (getTimestamp_l(mStartTs) != OK) {
+            mStartTs.mPosition = 0;
+        }
+    } else {
+        if (getTimestamp_l(&mStartEts) != OK) {
+            mStartEts.clear();
+        }
+    }
+    if (previousState == STATE_STOPPED || previousState == STATE_FLUSHED) {
+        // reset current position as seen by client to 0
+        mPosition = 0;
+        mPreviousTimestampValid = false;
+        mTimestampStartupGlitchReported = false;
+        mRetrogradeMotionReported = false;
+        mPreviousLocation = ExtendedTimestamp::LOCATION_INVALID;
+
+        if (!isOffloadedOrDirect_l()
+                && mStartEts.mTimeNs[ExtendedTimestamp::LOCATION_SERVER] > 0) {
+            // Server side has consumed something, but is it finished consuming?
+            // It is possible since flush and stop are asynchronous that the server
+            // is still active at this point.
+            ALOGV("start: server read:%lld  cumulative flushed:%lld  client written:%lld",
+                    (long long)(mFramesWrittenServerOffset
+                            + mStartEts.mPosition[ExtendedTimestamp::LOCATION_SERVER]),
+                    (long long)mStartEts.mFlushed,
+                    (long long)mFramesWritten);
+            mFramesWrittenServerOffset = -mStartEts.mPosition[ExtendedTimestamp::LOCATION_SERVER];
+        }
+        mFramesWritten = 0;
+        mProxy->clearTimestamp(); // need new server push for valid timestamp
+        mMarkerReached = false;
+
+        // For offloaded tracks, we don't know if the hardware counters are really zero here,
+        // since the flush is asynchronous and stop may not fully drain.
+        // We save the time when the track is started to later verify whether
+        // the counters are realistic (i.e. start from zero after this time).
+        mStartUs = getNowUs();
+
+        // force refresh of remaining frames by processAudioBuffer() as last
+        // write before stop could be partial.
+        mRefreshRemaining = true;
+    }
+    mNewPosition = mPosition + mUpdatePeriod;
+    int32_t flags = android_atomic_and(~(CBLK_STREAM_END_DONE | CBLK_DISABLED), &mCblk->mFlags);
+
+    status_t status = NO_ERROR;
+    if (!(flags & CBLK_INVALID)) {
+        status = mAudioTrack->start();
+        if (status == DEAD_OBJECT) {
+            flags |= CBLK_INVALID;
+        }
+    }
+    if (flags & CBLK_INVALID) {
+        status = restoreTrack_l("start");
+    }
+
+    // resume or pause the callback thread as needed.
+    sp<AudioTrackThread> t = mAudioTrackThread;
+    if (status == NO_ERROR) {
+        if (t != 0) {
+            if (previousState == STATE_STOPPING) {
+                mProxy->interrupt();
+            } else {
+                t->resume();
+            }
+        } else {
+            mPreviousPriority = getpriority(PRIO_PROCESS, 0);
+            get_sched_policy(0, &mPreviousSchedulingGroup);
+            androidSetThreadPriority(0, ANDROID_PRIORITY_AUDIO);
+        }
+
+        // Start our local VolumeHandler for restoration purposes.
+        mVolumeHandler->setStarted();
+    } else {
+        ALOGE("start() status %d", status);
+        mState = previousState;
+        if (t != 0) {
+            if (previousState != STATE_STOPPING) {
+                t->pause();
+            }
+        } else {
+            setpriority(PRIO_PROCESS, 0, mPreviousPriority);
+            set_sched_policy(0, mPreviousSchedulingGroup);
+        }
+    }
+
+    return status;
+}
+
+void AudioTrack::stop()
+{
+    AutoMutex lock(mLock);
+    if (mState != STATE_ACTIVE && mState != STATE_PAUSED) {
+        return;
+    }
+
+    if (isOffloaded_l()) {
+        mState = STATE_STOPPING;
+    } else {
+        mState = STATE_STOPPED;
+        ALOGD_IF(mSharedBuffer == nullptr,
+                "stop() called with %u frames delivered", mReleased.value());
+        mReleased = 0;
+    }
+
+    mProxy->interrupt();
+    mAudioTrack->stop();
+
+    // Note: legacy handling - stop does not clear playback marker
+    // and periodic update counter, but flush does for streaming tracks.
+
+    if (mSharedBuffer != 0) {
+        // clear buffer position and loop count.
+        mStaticProxy->setBufferPositionAndLoop(0 /* position */,
+                0 /* loopStart */, 0 /* loopEnd */, 0 /* loopCount */);
+    }
+
+    sp<AudioTrackThread> t = mAudioTrackThread;
+    if (t != 0) {
+        if (!isOffloaded_l()) {
+            t->pause();
+        }
+    } else {
+        setpriority(PRIO_PROCESS, 0, mPreviousPriority);
+        set_sched_policy(0, mPreviousSchedulingGroup);
+    }
+}
+
+bool AudioTrack::stopped() const
+{
+    AutoMutex lock(mLock);
+    return mState != STATE_ACTIVE;
+}
+
+void AudioTrack::flush()
+{
+    if (mSharedBuffer != 0) {
+        return;
+    }
+    AutoMutex lock(mLock);
+    if (mState == STATE_ACTIVE || mState == STATE_FLUSHED) {
+        return;
+    }
+    flush_l();
+}
+
+void AudioTrack::flush_l()
+{
+    ALOG_ASSERT(mState != STATE_ACTIVE);
+
+    // clear playback marker and periodic update counter
+    mMarkerPosition = 0;
+    mMarkerReached = false;
+    mUpdatePeriod = 0;
+    mRefreshRemaining = true;
+
+    mState = STATE_FLUSHED;
+    mReleased = 0;
+    if (isOffloaded_l()) {
+        mProxy->interrupt();
+    }
+    mProxy->flush();
+    mAudioTrack->flush();
+}
+
+void AudioTrack::pause()
+{
+    AutoMutex lock(mLock);
+    if (mState == STATE_ACTIVE) {
+        mState = STATE_PAUSED;
+    } else if (mState == STATE_STOPPING) {
+        mState = STATE_PAUSED_STOPPING;
+    } else {
+        return;
+    }
+    mProxy->interrupt();
+    mAudioTrack->pause();
+
+    if (isOffloaded_l()) {
+        if (mOutput != AUDIO_IO_HANDLE_NONE) {
+            // An offload output can be re-used between two audio tracks having
+            // the same configuration. A timestamp query for a paused track
+            // while the other is running would return an incorrect time.
+            // To fix this, cache the playback position on a pause() and return
+            // this time when requested until the track is resumed.
+
+            // OffloadThread sends HAL pause in its threadLoop. Time saved
+            // here can be slightly off.
+
+            // TODO: check return code for getRenderPosition.
+
+            uint32_t halFrames;
+            AudioSystem::getRenderPosition(mOutput, &halFrames, &mPausedPosition);
+            ALOGV("AudioTrack::pause for offload, cache current position %u", mPausedPosition);
+        }
+    }
+}
+
+status_t AudioTrack::setVolume(float left, float right)
+{
+    // This duplicates a test by AudioTrack JNI, but that is not the only caller
+    if (isnanf(left) || left < GAIN_FLOAT_ZERO || left > GAIN_FLOAT_UNITY ||
+            isnanf(right) || right < GAIN_FLOAT_ZERO || right > GAIN_FLOAT_UNITY) {
+        return BAD_VALUE;
+    }
+
+    AutoMutex lock(mLock);
+    mVolume[AUDIO_INTERLEAVE_LEFT] = left;
+    mVolume[AUDIO_INTERLEAVE_RIGHT] = right;
+
+    mProxy->setVolumeLR(gain_minifloat_pack(gain_from_float(left), gain_from_float(right)));
+
+    if (isOffloaded_l()) {
+        mAudioTrack->signal();
+    }
+    return NO_ERROR;
+}
+
+status_t AudioTrack::setVolume(float volume)
+{
+    return setVolume(volume, volume);
+}
+
+status_t AudioTrack::setAuxEffectSendLevel(float level)
+{
+    // This duplicates a test by AudioTrack JNI, but that is not the only caller
+    if (isnanf(level) || level < GAIN_FLOAT_ZERO || level > GAIN_FLOAT_UNITY) {
+        return BAD_VALUE;
+    }
+
+    AutoMutex lock(mLock);
+    mSendLevel = level;
+    mProxy->setSendLevel(level);
+
+    return NO_ERROR;
+}
+
+void AudioTrack::getAuxEffectSendLevel(float* level) const
+{
+    if (level != NULL) {
+        *level = mSendLevel;
+    }
+}
+
+status_t AudioTrack::setSampleRate(uint32_t rate)
+{
+    AutoMutex lock(mLock);
+    if (rate == mSampleRate) {
+        return NO_ERROR;
+    }
+    if (isOffloadedOrDirect_l() || (mFlags & AUDIO_OUTPUT_FLAG_FAST)) {
+        return INVALID_OPERATION;
+    }
+    if (mOutput == AUDIO_IO_HANDLE_NONE) {
+        return NO_INIT;
+    }
+    // NOTE: it is theoretically possible, but highly unlikely, that a device change
+    // could mean a previously allowed sampling rate is no longer allowed.
+    uint32_t afSamplingRate;
+    if (AudioSystem::getSamplingRate(mOutput, &afSamplingRate) != NO_ERROR) {
+        return NO_INIT;
+    }
+    // pitch is emulated by adjusting speed and sampleRate
+    const uint32_t effectiveSampleRate = adjustSampleRate(rate, mPlaybackRate.mPitch);
+    if (rate == 0 || effectiveSampleRate > afSamplingRate * AUDIO_RESAMPLER_DOWN_RATIO_MAX) {
+        return BAD_VALUE;
+    }
+    // TODO: Should we also check if the buffer size is compatible?
+
+    mSampleRate = rate;
+    mProxy->setSampleRate(effectiveSampleRate);
+
+    return NO_ERROR;
+}
+
+uint32_t AudioTrack::getSampleRate() const
+{
+    AutoMutex lock(mLock);
+
+    // sample rate can be updated during playback by the offloaded decoder so we need to
+    // query the HAL and update if needed.
+// FIXME use Proxy return channel to update the rate from server and avoid polling here
+    if (isOffloadedOrDirect_l()) {
+        if (mOutput != AUDIO_IO_HANDLE_NONE) {
+            uint32_t sampleRate = 0;
+            status_t status = AudioSystem::getSamplingRate(mOutput, &sampleRate);
+            if (status == NO_ERROR) {
+                mSampleRate = sampleRate;
+            }
+        }
+    }
+    return mSampleRate;
+}
+
+uint32_t AudioTrack::getOriginalSampleRate() const
+{
+    return mOriginalSampleRate;
+}
+
+status_t AudioTrack::setPlaybackRate(const AudioPlaybackRate &playbackRate)
+{
+    AutoMutex lock(mLock);
+    if (isAudioPlaybackRateEqual(playbackRate, mPlaybackRate)) {
+        return NO_ERROR;
+    }
+    if (isOffloadedOrDirect_l()) {
+        return INVALID_OPERATION;
+    }
+    if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
+        return INVALID_OPERATION;
+    }
+
+    ALOGV("setPlaybackRate (input): mSampleRate:%u  mSpeed:%f  mPitch:%f",
+            mSampleRate, playbackRate.mSpeed, playbackRate.mPitch);
+    // pitch is emulated by adjusting speed and sampleRate
+    const uint32_t effectiveRate = adjustSampleRate(mSampleRate, playbackRate.mPitch);
+    const float effectiveSpeed = adjustSpeed(playbackRate.mSpeed, playbackRate.mPitch);
+    const float effectivePitch = adjustPitch(playbackRate.mPitch);
+    AudioPlaybackRate playbackRateTemp = playbackRate;
+    playbackRateTemp.mSpeed = effectiveSpeed;
+    playbackRateTemp.mPitch = effectivePitch;
+
+    ALOGV("setPlaybackRate (effective): mSampleRate:%u  mSpeed:%f  mPitch:%f",
+            effectiveRate, effectiveSpeed, effectivePitch);
+
+    if (!isAudioPlaybackRateValid(playbackRateTemp)) {
+        ALOGV("setPlaybackRate(%f, %f) failed (effective rate out of bounds)",
+                playbackRate.mSpeed, playbackRate.mPitch);
+        return BAD_VALUE;
+    }
+    // Check if the buffer size is compatible.
+    if (!isSampleRateSpeedAllowed_l(effectiveRate, effectiveSpeed)) {
+        ALOGV("setPlaybackRate(%f, %f) failed (buffer size)",
+                playbackRate.mSpeed, playbackRate.mPitch);
+        return BAD_VALUE;
+    }
+
+    // Check resampler ratios are within bounds
+    if ((uint64_t)effectiveRate > (uint64_t)mSampleRate *
+            (uint64_t)AUDIO_RESAMPLER_DOWN_RATIO_MAX) {
+        ALOGV("setPlaybackRate(%f, %f) failed. Resample rate exceeds max accepted value",
+                playbackRate.mSpeed, playbackRate.mPitch);
+        return BAD_VALUE;
+    }
+
+    if ((uint64_t)effectiveRate * (uint64_t)AUDIO_RESAMPLER_UP_RATIO_MAX < (uint64_t)mSampleRate) {
+        ALOGV("setPlaybackRate(%f, %f) failed. Resample rate below min accepted value",
+                        playbackRate.mSpeed, playbackRate.mPitch);
+        return BAD_VALUE;
+    }
+    mPlaybackRate = playbackRate;
+    //set effective rates
+    mProxy->setPlaybackRate(playbackRateTemp);
+    mProxy->setSampleRate(effectiveRate); // FIXME: not quite "atomic" with setPlaybackRate
+    return NO_ERROR;
+}
+
+const AudioPlaybackRate& AudioTrack::getPlaybackRate() const
+{
+    AutoMutex lock(mLock);
+    return mPlaybackRate;
+}
+
+ssize_t AudioTrack::getBufferSizeInFrames()
+{
+    AutoMutex lock(mLock);
+    if (mOutput == AUDIO_IO_HANDLE_NONE || mProxy.get() == 0) {
+        return NO_INIT;
+    }
+    return (ssize_t) mProxy->getBufferSizeInFrames();
+}
+
+status_t AudioTrack::getBufferDurationInUs(int64_t *duration)
+{
+    if (duration == nullptr) {
+        return BAD_VALUE;
+    }
+    AutoMutex lock(mLock);
+    if (mOutput == AUDIO_IO_HANDLE_NONE || mProxy.get() == 0) {
+        return NO_INIT;
+    }
+    ssize_t bufferSizeInFrames = (ssize_t) mProxy->getBufferSizeInFrames();
+    if (bufferSizeInFrames < 0) {
+        return (status_t)bufferSizeInFrames;
+    }
+    *duration = (int64_t)((double)bufferSizeInFrames * 1000000
+            / ((double)mSampleRate * mPlaybackRate.mSpeed));
+    return NO_ERROR;
+}
+
+ssize_t AudioTrack::setBufferSizeInFrames(size_t bufferSizeInFrames)
+{
+    AutoMutex lock(mLock);
+    if (mOutput == AUDIO_IO_HANDLE_NONE || mProxy.get() == 0) {
+        return NO_INIT;
+    }
+    // Reject if timed track or compressed audio.
+    if (!audio_is_linear_pcm(mFormat)) {
+        return INVALID_OPERATION;
+    }
+    return (ssize_t) mProxy->setBufferSizeInFrames((uint32_t) bufferSizeInFrames);
+}
+
+status_t AudioTrack::setLoop(uint32_t loopStart, uint32_t loopEnd, int loopCount)
+{
+    if (mSharedBuffer == 0 || isOffloadedOrDirect()) {
+        return INVALID_OPERATION;
+    }
+
+    if (loopCount == 0) {
+        ;
+    } else if (loopCount >= -1 && loopStart < loopEnd && loopEnd <= mFrameCount &&
+            loopEnd - loopStart >= MIN_LOOP) {
+        ;
+    } else {
+        return BAD_VALUE;
+    }
+
+    AutoMutex lock(mLock);
+    // See setPosition() regarding setting parameters such as loop points or position while active
+    if (mState == STATE_ACTIVE) {
+        return INVALID_OPERATION;
+    }
+    setLoop_l(loopStart, loopEnd, loopCount);
+    return NO_ERROR;
+}
+
+void AudioTrack::setLoop_l(uint32_t loopStart, uint32_t loopEnd, int loopCount)
+{
+    // We do not update the periodic notification point.
+    // mNewPosition = updateAndGetPosition_l() + mUpdatePeriod;
+    mLoopCount = loopCount;
+    mLoopEnd = loopEnd;
+    mLoopStart = loopStart;
+    mLoopCountNotified = loopCount;
+    mStaticProxy->setLoop(loopStart, loopEnd, loopCount);
+
+    // Waking the AudioTrackThread is not needed as this cannot be called when active.
+}
+
+status_t AudioTrack::setMarkerPosition(uint32_t marker)
+{
+    // The only purpose of setting marker position is to get a callback
+    if (mCbf == NULL || isOffloadedOrDirect()) {
+        return INVALID_OPERATION;
+    }
+
+    AutoMutex lock(mLock);
+    mMarkerPosition = marker;
+    mMarkerReached = false;
+
+    sp<AudioTrackThread> t = mAudioTrackThread;
+    if (t != 0) {
+        t->wake();
+    }
+    return NO_ERROR;
+}
+
+status_t AudioTrack::getMarkerPosition(uint32_t *marker) const
+{
+    if (isOffloadedOrDirect()) {
+        return INVALID_OPERATION;
+    }
+    if (marker == NULL) {
+        return BAD_VALUE;
+    }
+
+    AutoMutex lock(mLock);
+    mMarkerPosition.getValue(marker);
+
+    return NO_ERROR;
+}
+
+status_t AudioTrack::setPositionUpdatePeriod(uint32_t updatePeriod)
+{
+    // The only purpose of setting position update period is to get a callback
+    if (mCbf == NULL || isOffloadedOrDirect()) {
+        return INVALID_OPERATION;
+    }
+
+    AutoMutex lock(mLock);
+    mNewPosition = updateAndGetPosition_l() + updatePeriod;
+    mUpdatePeriod = updatePeriod;
+
+    sp<AudioTrackThread> t = mAudioTrackThread;
+    if (t != 0) {
+        t->wake();
+    }
+    return NO_ERROR;
+}
+
+status_t AudioTrack::getPositionUpdatePeriod(uint32_t *updatePeriod) const
+{
+    if (isOffloadedOrDirect()) {
+        return INVALID_OPERATION;
+    }
+    if (updatePeriod == NULL) {
+        return BAD_VALUE;
+    }
+
+    AutoMutex lock(mLock);
+    *updatePeriod = mUpdatePeriod;
+
+    return NO_ERROR;
+}
+
+status_t AudioTrack::setPosition(uint32_t position)
+{
+    if (mSharedBuffer == 0 || isOffloadedOrDirect()) {
+        return INVALID_OPERATION;
+    }
+    if (position > mFrameCount) {
+        return BAD_VALUE;
+    }
+
+    AutoMutex lock(mLock);
+    // Currently we require that the player is inactive before setting parameters such as position
+    // or loop points.  Otherwise, there could be a race condition: the application could read the
+    // current position, compute a new position or loop parameters, and then set that position or
+    // loop parameters but it would do the "wrong" thing since the position has continued to advance
+    // in the mean time.  If we ever provide a sequencer in server, we could allow a way for the app
+    // to specify how it wants to handle such scenarios.
+    if (mState == STATE_ACTIVE) {
+        return INVALID_OPERATION;
+    }
+    // After setting the position, use full update period before notification.
+    mNewPosition = updateAndGetPosition_l() + mUpdatePeriod;
+    mStaticProxy->setBufferPosition(position);
+
+    // Waking the AudioTrackThread is not needed as this cannot be called when active.
+    return NO_ERROR;
+}
+
+status_t AudioTrack::getPosition(uint32_t *position)
+{
+    if (position == NULL) {
+        return BAD_VALUE;
+    }
+
+    AutoMutex lock(mLock);
+    // FIXME: offloaded and direct tracks call into the HAL for render positions
+    // for compressed/synced data; however, we use proxy position for pure linear pcm data
+    // as we do not know the capability of the HAL for pcm position support and standby.
+    // There may be some latency differences between the HAL position and the proxy position.
+    if (isOffloadedOrDirect_l() && !isPurePcmData_l()) {
+        uint32_t dspFrames = 0;
+
+        if (isOffloaded_l() && ((mState == STATE_PAUSED) || (mState == STATE_PAUSED_STOPPING))) {
+            ALOGV("getPosition called in paused state, return cached position %u", mPausedPosition);
+            *position = mPausedPosition;
+            return NO_ERROR;
+        }
+
+        if (mOutput != AUDIO_IO_HANDLE_NONE) {
+            uint32_t halFrames; // actually unused
+            (void) AudioSystem::getRenderPosition(mOutput, &halFrames, &dspFrames);
+            // FIXME: on getRenderPosition() error, we return OK with frame position 0.
+        }
+        // FIXME: dspFrames may not be zero in (mState == STATE_STOPPED || mState == STATE_FLUSHED)
+        // due to hardware latency. We leave this behavior for now.
+        *position = dspFrames;
+    } else {
+        if (mCblk->mFlags & CBLK_INVALID) {
+            (void) restoreTrack_l("getPosition");
+            // FIXME: for compatibility with the Java API we ignore the restoreTrack_l()
+            // error here (e.g. DEAD_OBJECT) and return OK with the last recorded server position.
+        }
+
+        // IAudioTrack::stop() isn't synchronous; we don't know when presentation completes
+        *position = (mState == STATE_STOPPED || mState == STATE_FLUSHED) ?
+                0 : updateAndGetPosition_l().value();
+    }
+    return NO_ERROR;
+}
+
+status_t AudioTrack::getBufferPosition(uint32_t *position)
+{
+    if (mSharedBuffer == 0) {
+        return INVALID_OPERATION;
+    }
+    if (position == NULL) {
+        return BAD_VALUE;
+    }
+
+    AutoMutex lock(mLock);
+    *position = mStaticProxy->getBufferPosition();
+    return NO_ERROR;
+}
+
+status_t AudioTrack::reload()
+{
+    if (mSharedBuffer == 0 || isOffloadedOrDirect()) {
+        return INVALID_OPERATION;
+    }
+
+    AutoMutex lock(mLock);
+    // See setPosition() regarding setting parameters such as loop points or position while active
+    if (mState == STATE_ACTIVE) {
+        return INVALID_OPERATION;
+    }
+    mNewPosition = mUpdatePeriod;
+    (void) updateAndGetPosition_l();
+    mPosition = 0;
+    mPreviousTimestampValid = false;
+#if 0
+    // The documentation is not clear on the behavior of reload() and the restoration
+    // of loop count. Historically we have not restored loop count, start, end,
+    // but it makes sense if one desires to repeat playing a particular sound.
+    if (mLoopCount != 0) {
+        mLoopCountNotified = mLoopCount;
+        mStaticProxy->setLoop(mLoopStart, mLoopEnd, mLoopCount);
+    }
+#endif
+    mStaticProxy->setBufferPosition(0);
+    return NO_ERROR;
+}
+
+audio_io_handle_t AudioTrack::getOutput() const
+{
+    AutoMutex lock(mLock);
+    return mOutput;
+}
+
+status_t AudioTrack::setOutputDevice(audio_port_handle_t deviceId) {
+    AutoMutex lock(mLock);
+    if (mSelectedDeviceId != deviceId) {
+        mSelectedDeviceId = deviceId;
+        if (mStatus == NO_ERROR) {
+            android_atomic_or(CBLK_INVALID, &mCblk->mFlags);
+        }
+    }
+    return NO_ERROR;
+}
+
+audio_port_handle_t AudioTrack::getOutputDevice() {
+    AutoMutex lock(mLock);
+    return mSelectedDeviceId;
+}
+
+audio_port_handle_t AudioTrack::getRoutedDeviceId() {
+    AutoMutex lock(mLock);
+    if (mOutput == AUDIO_IO_HANDLE_NONE) {
+        return AUDIO_PORT_HANDLE_NONE;
+    }
+    return AudioSystem::getDeviceIdForIo(mOutput);
+}
+
+status_t AudioTrack::attachAuxEffect(int effectId)
+{
+    AutoMutex lock(mLock);
+    status_t status = mAudioTrack->attachAuxEffect(effectId);
+    if (status == NO_ERROR) {
+        mAuxEffectId = effectId;
+    }
+    return status;
+}
+
+audio_stream_type_t AudioTrack::streamType() const
+{
+    if (mStreamType == AUDIO_STREAM_DEFAULT) {
+        return audio_attributes_to_stream_type(&mAttributes);
+    }
+    return mStreamType;
+}
+
+// -------------------------------------------------------------------------
+
+// must be called with mLock held
+status_t AudioTrack::createTrack_l()
+{
+    const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger();
+    if (audioFlinger == 0) {
+        ALOGE("Could not get audioflinger");
+        return NO_INIT;
+    }
+
+    if (mDeviceCallback != 0 && mOutput != AUDIO_IO_HANDLE_NONE) {
+        AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mOutput);
+    }
+    audio_io_handle_t output;
+    audio_stream_type_t streamType = mStreamType;
+    audio_attributes_t *attr = (mStreamType == AUDIO_STREAM_DEFAULT) ? &mAttributes : NULL;
+
+    // mFlags (not mOrigFlags) is modified depending on whether fast request is accepted.
+    // After fast request is denied, we will request again if IAudioTrack is re-created.
+
+    status_t status;
+    audio_config_t config = AUDIO_CONFIG_INITIALIZER;
+    config.sample_rate = mSampleRate;
+    config.channel_mask = mChannelMask;
+    config.format = mFormat;
+    config.offload_info = mOffloadInfoCopy;
+    status = AudioSystem::getOutputForAttr(attr, &output,
+                                           mSessionId, &streamType, mClientUid,
+                                           &config,
+                                           mFlags, mSelectedDeviceId, &mPortId);
+
+    if (status != NO_ERROR || output == AUDIO_IO_HANDLE_NONE) {
+        ALOGE("Could not get audio output for session %d, stream type %d, usage %d, sample rate %u,"
+              " format %#x, channel mask %#x, flags %#x",
+              mSessionId, streamType, mAttributes.usage, mSampleRate, mFormat, mChannelMask,
+              mFlags);
+        return BAD_VALUE;
+    }
+    {
+    // Now that we have a reference to an I/O handle and have not yet handed it off to AudioFlinger,
+    // we must release it ourselves if anything goes wrong.
+
+    // Not all of these values are needed under all conditions, but it is easier to get them all
+    status = AudioSystem::getLatency(output, &mAfLatency);
+    if (status != NO_ERROR) {
+        ALOGE("getLatency(%d) failed status %d", output, status);
+        goto release;
+    }
+    ALOGV("createTrack_l() output %d afLatency %u", output, mAfLatency);
+
+    status = AudioSystem::getFrameCount(output, &mAfFrameCount);
+    if (status != NO_ERROR) {
+        ALOGE("getFrameCount(output=%d) status %d", output, status);
+        goto release;
+    }
+
+    // TODO consider making this a member variable if there are other uses for it later
+    size_t afFrameCountHAL;
+    status = AudioSystem::getFrameCountHAL(output, &afFrameCountHAL);
+    if (status != NO_ERROR) {
+        ALOGE("getFrameCountHAL(output=%d) status %d", output, status);
+        goto release;
+    }
+    ALOG_ASSERT(afFrameCountHAL > 0);
+
+    status = AudioSystem::getSamplingRate(output, &mAfSampleRate);
+    if (status != NO_ERROR) {
+        ALOGE("getSamplingRate(output=%d) status %d", output, status);
+        goto release;
+    }
+    if (mSampleRate == 0) {
+        mSampleRate = mAfSampleRate;
+        mOriginalSampleRate = mAfSampleRate;
+    }
+
+    // Client can only express a preference for FAST.  Server will perform additional tests.
+    if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
+        bool useCaseAllowed =
+            // either of these use cases:
+            // use case 1: shared buffer
+            (mSharedBuffer != 0) ||
+            // use case 2: callback transfer mode
+            (mTransfer == TRANSFER_CALLBACK) ||
+            // use case 3: obtain/release mode
+            (mTransfer == TRANSFER_OBTAIN) ||
+            // use case 4: synchronous write
+            ((mTransfer == TRANSFER_SYNC) && mThreadCanCallJava);
+        // sample rates must also match
+        bool fastAllowed = useCaseAllowed && (mSampleRate == mAfSampleRate);
+        if (!fastAllowed) {
+            ALOGW("AUDIO_OUTPUT_FLAG_FAST denied by client; transfer %d, "
+                "track %u Hz, output %u Hz",
+                mTransfer, mSampleRate, mAfSampleRate);
+            mFlags = (audio_output_flags_t) (mFlags & ~AUDIO_OUTPUT_FLAG_FAST);
+        }
+    }
+
+    mNotificationFramesAct = mNotificationFramesReq;
+
+    size_t frameCount = mReqFrameCount;
+    if (!audio_has_proportional_frames(mFormat)) {
+
+        if (mSharedBuffer != 0) {
+            // Same comment as below about ignoring frameCount parameter for set()
+            frameCount = mSharedBuffer->size();
+        } else if (frameCount == 0) {
+            frameCount = mAfFrameCount;
+        }
+        if (mNotificationFramesAct != frameCount) {
+            mNotificationFramesAct = frameCount;
+        }
+    } else if (mSharedBuffer != 0) {
+        // FIXME: Ensure client side memory buffers need
+        // not have additional alignment beyond sample
+        // (e.g. 16 bit stereo accessed as 32 bit frame).
+        size_t alignment = audio_bytes_per_sample(mFormat);
+        if (alignment & 1) {
+            // for AUDIO_FORMAT_PCM_24_BIT_PACKED (not exposed through Java).
+            alignment = 1;
+        }
+        if (mChannelCount > 1) {
+            // More than 2 channels does not require stronger alignment than stereo
+            alignment <<= 1;
+        }
+        if (((uintptr_t)mSharedBuffer->pointer() & (alignment - 1)) != 0) {
+            ALOGE("Invalid buffer alignment: address %p, channel count %u",
+                    mSharedBuffer->pointer(), mChannelCount);
+            status = BAD_VALUE;
+            goto release;
+        }
+
+        // When initializing a shared buffer AudioTrack via constructors,
+        // there's no frameCount parameter.
+        // But when initializing a shared buffer AudioTrack via set(),
+        // there _is_ a frameCount parameter.  We silently ignore it.
+        frameCount = mSharedBuffer->size() / mFrameSize;
+    } else {
+        size_t minFrameCount = 0;
+        // For fast tracks the frame count calculations and checks are mostly done by server,
+        // but we try to respect the application's request for notifications per buffer.
+        if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
+            if (mNotificationsPerBufferReq > 0) {
+                // Avoid possible arithmetic overflow during multiplication.
+                // mNotificationsPerBuffer is clamped to a small integer earlier, so it is unlikely.
+                if (mNotificationsPerBufferReq > SIZE_MAX / afFrameCountHAL) {
+                    ALOGE("Requested notificationPerBuffer=%u ignored for HAL frameCount=%zu",
+                            mNotificationsPerBufferReq, afFrameCountHAL);
+                } else {
+                    minFrameCount = afFrameCountHAL * mNotificationsPerBufferReq;
+                }
+            }
+        } else {
+            // for normal tracks precompute the frame count based on speed.
+            const float speed = !isPurePcmData_l() || isOffloadedOrDirect_l() ? 1.0f :
+                            max(mMaxRequiredSpeed, mPlaybackRate.mSpeed);
+            minFrameCount = calculateMinFrameCount(
+                    mAfLatency, mAfFrameCount, mAfSampleRate, mSampleRate,
+                    speed /*, 0 mNotificationsPerBufferReq*/);
+        }
+        if (frameCount < minFrameCount) {
+            frameCount = minFrameCount;
+        }
+    }
+
+    audio_output_flags_t flags = mFlags;
+
+    pid_t tid = -1;
+    if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
+        if (mAudioTrackThread != 0 && !mThreadCanCallJava) {
+            tid = mAudioTrackThread->getTid();
+        }
+    }
+
+    size_t temp = frameCount;   // temp may be replaced by a revised value of frameCount,
+                                // but we will still need the original value also
+    audio_session_t originalSessionId = mSessionId;
+    sp<IAudioTrack> track = audioFlinger->createTrack(streamType,
+                                                      mSampleRate,
+                                                      mFormat,
+                                                      mChannelMask,
+                                                      &temp,
+                                                      &flags,
+                                                      mSharedBuffer,
+                                                      output,
+                                                      mClientPid,
+                                                      tid,
+                                                      &mSessionId,
+                                                      mClientUid,
+                                                      &status,
+                                                      mPortId);
+    ALOGE_IF(originalSessionId != AUDIO_SESSION_ALLOCATE && mSessionId != originalSessionId,
+            "session ID changed from %d to %d", originalSessionId, mSessionId);
+
+    if (status != NO_ERROR) {
+        ALOGE("AudioFlinger could not create track, status: %d", status);
+        goto release;
+    }
+    ALOG_ASSERT(track != 0);
+
+    // AudioFlinger now owns the reference to the I/O handle,
+    // so we are no longer responsible for releasing it.
+
+    // FIXME compare to AudioRecord
+    sp<IMemory> iMem = track->getCblk();
+    if (iMem == 0) {
+        ALOGE("Could not get control block");
+        return NO_INIT;
+    }
+    void *iMemPointer = iMem->pointer();
+    if (iMemPointer == NULL) {
+        ALOGE("Could not get control block pointer");
+        return NO_INIT;
+    }
+    // invariant that mAudioTrack != 0 is true only after set() returns successfully
+    if (mAudioTrack != 0) {
+        IInterface::asBinder(mAudioTrack)->unlinkToDeath(mDeathNotifier, this);
+        mDeathNotifier.clear();
+    }
+    mAudioTrack = track;
+    mCblkMemory = iMem;
+    IPCThreadState::self()->flushCommands();
+
+    audio_track_cblk_t* cblk = static_cast<audio_track_cblk_t*>(iMemPointer);
+    mCblk = cblk;
+    // note that temp is the (possibly revised) value of frameCount
+    if (temp < frameCount || (frameCount == 0 && temp == 0)) {
+        // In current design, AudioTrack client checks and ensures frame count validity before
+        // passing it to AudioFlinger so AudioFlinger should not return a different value except
+        // for fast track as it uses a special method of assigning frame count.
+        ALOGW("Requested frameCount %zu but received frameCount %zu", frameCount, temp);
+    }
+    frameCount = temp;
+
+    mAwaitBoost = false;
+    if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
+        if (flags & AUDIO_OUTPUT_FLAG_FAST) {
+            ALOGI("AUDIO_OUTPUT_FLAG_FAST successful; frameCount %zu -> %zu", frameCount, temp);
+            if (!mThreadCanCallJava) {
+                mAwaitBoost = true;
+            }
+        } else {
+            ALOGW("AUDIO_OUTPUT_FLAG_FAST denied by server; frameCount %zu -> %zu", frameCount,
+                    temp);
+        }
+    }
+    mFlags = flags;
+
+    // Make sure that application is notified with sufficient margin before underrun.
+    // The client can divide the AudioTrack buffer into sub-buffers,
+    // and expresses its desire to server as the notification frame count.
+    if (mSharedBuffer == 0 && audio_is_linear_pcm(mFormat)) {
+        size_t maxNotificationFrames;
+        if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
+            // notify every HAL buffer, regardless of the size of the track buffer
+            maxNotificationFrames = afFrameCountHAL;
+        } else {
+            // For normal tracks, use at least double-buffering if no sample rate conversion,
+            // or at least triple-buffering if there is sample rate conversion
+            const int nBuffering = mOriginalSampleRate == mAfSampleRate ? 2 : 3;
+            maxNotificationFrames = frameCount / nBuffering;
+        }
+        if (mNotificationFramesAct == 0 || mNotificationFramesAct > maxNotificationFrames) {
+            if (mNotificationFramesAct == 0) {
+                ALOGD("Client defaulted notificationFrames to %zu for frameCount %zu",
+                    maxNotificationFrames, frameCount);
+            } else {
+                ALOGW("Client adjusted notificationFrames from %u to %zu for frameCount %zu",
+                    mNotificationFramesAct, maxNotificationFrames, frameCount);
+            }
+            mNotificationFramesAct = (uint32_t) maxNotificationFrames;
+        }
+    }
+
+    // We retain a copy of the I/O handle, but don't own the reference
+    mOutput = output;
+    mRefreshRemaining = true;
+
+    // Starting address of buffers in shared memory.  If there is a shared buffer, buffers
+    // is the value of pointer() for the shared buffer, otherwise buffers points
+    // immediately after the control block.  This address is for the mapping within client
+    // address space.  AudioFlinger::TrackBase::mBuffer is for the server address space.
+    void* buffers;
+    if (mSharedBuffer == 0) {
+        buffers = cblk + 1;
+    } else {
+        buffers = mSharedBuffer->pointer();
+        if (buffers == NULL) {
+            ALOGE("Could not get buffer pointer");
+            return NO_INIT;
+        }
+    }
+
+    mAudioTrack->attachAuxEffect(mAuxEffectId);
+    // FIXME doesn't take into account speed or future sample rate changes (until restoreTrack)
+    // FIXME don't believe this lie
+    mLatency = mAfLatency + (1000*frameCount) / mSampleRate;
+
+    mFrameCount = frameCount;
+    // If IAudioTrack is re-created, don't let the requested frameCount
+    // decrease.  This can confuse clients that cache frameCount().
+    if (frameCount > mReqFrameCount) {
+        mReqFrameCount = frameCount;
+    }
+
+    // reset server position to 0 as we have new cblk.
+    mServer = 0;
+
+    // update proxy
+    if (mSharedBuffer == 0) {
+        mStaticProxy.clear();
+        mProxy = new AudioTrackClientProxy(cblk, buffers, frameCount, mFrameSize);
+    } else {
+        mStaticProxy = new StaticAudioTrackClientProxy(cblk, buffers, frameCount, mFrameSize);
+        mProxy = mStaticProxy;
+    }
+
+    mProxy->setVolumeLR(gain_minifloat_pack(
+            gain_from_float(mVolume[AUDIO_INTERLEAVE_LEFT]),
+            gain_from_float(mVolume[AUDIO_INTERLEAVE_RIGHT])));
+
+    mProxy->setSendLevel(mSendLevel);
+    const uint32_t effectiveSampleRate = adjustSampleRate(mSampleRate, mPlaybackRate.mPitch);
+    const float effectiveSpeed = adjustSpeed(mPlaybackRate.mSpeed, mPlaybackRate.mPitch);
+    const float effectivePitch = adjustPitch(mPlaybackRate.mPitch);
+    mProxy->setSampleRate(effectiveSampleRate);
+
+    AudioPlaybackRate playbackRateTemp = mPlaybackRate;
+    playbackRateTemp.mSpeed = effectiveSpeed;
+    playbackRateTemp.mPitch = effectivePitch;
+    mProxy->setPlaybackRate(playbackRateTemp);
+    mProxy->setMinimum(mNotificationFramesAct);
+
+    mDeathNotifier = new DeathNotifier(this);
+    IInterface::asBinder(mAudioTrack)->linkToDeath(mDeathNotifier, this);
+
+    if (mDeviceCallback != 0) {
+        AudioSystem::addAudioDeviceCallback(mDeviceCallback, mOutput);
+    }
+
+    return NO_ERROR;
+    }
+
+release:
+    AudioSystem::releaseOutput(output, streamType, mSessionId);
+    if (status == NO_ERROR) {
+        status = NO_INIT;
+    }
+    return status;
+}
+
+status_t AudioTrack::obtainBuffer(Buffer* audioBuffer, int32_t waitCount, size_t *nonContig)
+{
+    if (audioBuffer == NULL) {
+        if (nonContig != NULL) {
+            *nonContig = 0;
+        }
+        return BAD_VALUE;
+    }
+    if (mTransfer != TRANSFER_OBTAIN) {
+        audioBuffer->frameCount = 0;
+        audioBuffer->size = 0;
+        audioBuffer->raw = NULL;
+        if (nonContig != NULL) {
+            *nonContig = 0;
+        }
+        return INVALID_OPERATION;
+    }
+
+    const struct timespec *requested;
+    struct timespec timeout;
+    if (waitCount == -1) {
+        requested = &ClientProxy::kForever;
+    } else if (waitCount == 0) {
+        requested = &ClientProxy::kNonBlocking;
+    } else if (waitCount > 0) {
+        long long ms = WAIT_PERIOD_MS * (long long) waitCount;
+        timeout.tv_sec = ms / 1000;
+        timeout.tv_nsec = (int) (ms % 1000) * 1000000;
+        requested = &timeout;
+    } else {
+        ALOGE("%s invalid waitCount %d", __func__, waitCount);
+        requested = NULL;
+    }
+    return obtainBuffer(audioBuffer, requested, NULL /*elapsed*/, nonContig);
+}
+
+status_t AudioTrack::obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
+        struct timespec *elapsed, size_t *nonContig)
+{
+    // previous and new IAudioTrack sequence numbers are used to detect track re-creation
+    uint32_t oldSequence = 0;
+    uint32_t newSequence;
+
+    Proxy::Buffer buffer;
+    status_t status = NO_ERROR;
+
+    static const int32_t kMaxTries = 5;
+    int32_t tryCounter = kMaxTries;
+
+    do {
+        // obtainBuffer() is called with mutex unlocked, so keep extra references to these fields to
+        // keep them from going away if another thread re-creates the track during obtainBuffer()
+        sp<AudioTrackClientProxy> proxy;
+        sp<IMemory> iMem;
+
+        {   // start of lock scope
+            AutoMutex lock(mLock);
+
+            newSequence = mSequence;
+            // did previous obtainBuffer() fail due to media server death or voluntary invalidation?
+            if (status == DEAD_OBJECT) {
+                // re-create track, unless someone else has already done so
+                if (newSequence == oldSequence) {
+                    status = restoreTrack_l("obtainBuffer");
+                    if (status != NO_ERROR) {
+                        buffer.mFrameCount = 0;
+                        buffer.mRaw = NULL;
+                        buffer.mNonContig = 0;
+                        break;
+                    }
+                }
+            }
+            oldSequence = newSequence;
+
+            if (status == NOT_ENOUGH_DATA) {
+                restartIfDisabled();
+            }
+
+            // Keep the extra references
+            proxy = mProxy;
+            iMem = mCblkMemory;
+
+            if (mState == STATE_STOPPING) {
+                status = -EINTR;
+                buffer.mFrameCount = 0;
+                buffer.mRaw = NULL;
+                buffer.mNonContig = 0;
+                break;
+            }
+
+            // Non-blocking if track is stopped or paused
+            if (mState != STATE_ACTIVE) {
+                requested = &ClientProxy::kNonBlocking;
+            }
+
+        }   // end of lock scope
+
+        buffer.mFrameCount = audioBuffer->frameCount;
+        // FIXME starts the requested timeout and elapsed over from scratch
+        status = proxy->obtainBuffer(&buffer, requested, elapsed);
+    } while (((status == DEAD_OBJECT) || (status == NOT_ENOUGH_DATA)) && (tryCounter-- > 0));
+
+    audioBuffer->frameCount = buffer.mFrameCount;
+    audioBuffer->size = buffer.mFrameCount * mFrameSize;
+    audioBuffer->raw = buffer.mRaw;
+    if (nonContig != NULL) {
+        *nonContig = buffer.mNonContig;
+    }
+    return status;
+}
+
+void AudioTrack::releaseBuffer(const Buffer* audioBuffer)
+{
+    // FIXME add error checking on mode, by adding an internal version
+    if (mTransfer == TRANSFER_SHARED) {
+        return;
+    }
+
+    size_t stepCount = audioBuffer->size / mFrameSize;
+    if (stepCount == 0) {
+        return;
+    }
+
+    Proxy::Buffer buffer;
+    buffer.mFrameCount = stepCount;
+    buffer.mRaw = audioBuffer->raw;
+
+    AutoMutex lock(mLock);
+    mReleased += stepCount;
+    mInUnderrun = false;
+    mProxy->releaseBuffer(&buffer);
+
+    // restart track if it was disabled by audioflinger due to previous underrun
+    restartIfDisabled();
+}
+
+void AudioTrack::restartIfDisabled()
+{
+    int32_t flags = android_atomic_and(~CBLK_DISABLED, &mCblk->mFlags);
+    if ((mState == STATE_ACTIVE) && (flags & CBLK_DISABLED)) {
+        ALOGW("releaseBuffer() track %p disabled due to previous underrun, restarting", this);
+        // FIXME ignoring status
+        mAudioTrack->start();
+    }
+}
+
+// -------------------------------------------------------------------------
+
+ssize_t AudioTrack::write(const void* buffer, size_t userSize, bool blocking)
+{
+    if (mTransfer != TRANSFER_SYNC) {
+        return INVALID_OPERATION;
+    }
+
+    if (isDirect()) {
+        AutoMutex lock(mLock);
+        int32_t flags = android_atomic_and(
+                            ~(CBLK_UNDERRUN | CBLK_LOOP_CYCLE | CBLK_LOOP_FINAL | CBLK_BUFFER_END),
+                            &mCblk->mFlags);
+        if (flags & CBLK_INVALID) {
+            return DEAD_OBJECT;
+        }
+    }
+
+    if (ssize_t(userSize) < 0 || (buffer == NULL && userSize != 0)) {
+        // Sanity-check: user is most-likely passing an error code, and it would
+        // make the return value ambiguous (actualSize vs error).
+        ALOGE("AudioTrack::write(buffer=%p, size=%zu (%zd)", buffer, userSize, userSize);
+        return BAD_VALUE;
+    }
+
+    size_t written = 0;
+    Buffer audioBuffer;
+
+    while (userSize >= mFrameSize) {
+        audioBuffer.frameCount = userSize / mFrameSize;
+
+        status_t err = obtainBuffer(&audioBuffer,
+                blocking ? &ClientProxy::kForever : &ClientProxy::kNonBlocking);
+        if (err < 0) {
+            if (written > 0) {
+                break;
+            }
+            if (err == TIMED_OUT || err == -EINTR) {
+                err = WOULD_BLOCK;
+            }
+            return ssize_t(err);
+        }
+
+        size_t toWrite = audioBuffer.size;
+        memcpy(audioBuffer.i8, buffer, toWrite);
+        buffer = ((const char *) buffer) + toWrite;
+        userSize -= toWrite;
+        written += toWrite;
+
+        releaseBuffer(&audioBuffer);
+    }
+
+    if (written > 0) {
+        mFramesWritten += written / mFrameSize;
+    }
+    return written;
+}
+
+// -------------------------------------------------------------------------
+
+nsecs_t AudioTrack::processAudioBuffer()
+{
+    // Currently the AudioTrack thread is not created if there are no callbacks.
+    // Would it ever make sense to run the thread, even without callbacks?
+    // If so, then replace this by checks at each use for mCbf != NULL.
+    LOG_ALWAYS_FATAL_IF(mCblk == NULL);
+
+    mLock.lock();
+    if (mAwaitBoost) {
+        mAwaitBoost = false;
+        mLock.unlock();
+        static const int32_t kMaxTries = 5;
+        int32_t tryCounter = kMaxTries;
+        uint32_t pollUs = 10000;
+        do {
+            int policy = sched_getscheduler(0) & ~SCHED_RESET_ON_FORK;
+            if (policy == SCHED_FIFO || policy == SCHED_RR) {
+                break;
+            }
+            usleep(pollUs);
+            pollUs <<= 1;
+        } while (tryCounter-- > 0);
+        if (tryCounter < 0) {
+            ALOGE("did not receive expected priority boost on time");
+        }
+        // Run again immediately
+        return 0;
+    }
+
+    // Can only reference mCblk while locked
+    int32_t flags = android_atomic_and(
+        ~(CBLK_UNDERRUN | CBLK_LOOP_CYCLE | CBLK_LOOP_FINAL | CBLK_BUFFER_END), &mCblk->mFlags);
+
+    // Check for track invalidation
+    if (flags & CBLK_INVALID) {
+        // for offloaded tracks restoreTrack_l() will just update the sequence and clear
+        // AudioSystem cache. We should not exit here but after calling the callback so
+        // that the upper layers can recreate the track
+        if (!isOffloadedOrDirect_l() || (mSequence == mObservedSequence)) {
+            status_t status __unused = restoreTrack_l("processAudioBuffer");
+            // FIXME unused status
+            // after restoration, continue below to make sure that the loop and buffer events
+            // are notified because they have been cleared from mCblk->mFlags above.
+        }
+    }
+
+    bool waitStreamEnd = mState == STATE_STOPPING;
+    bool active = mState == STATE_ACTIVE;
+
+    // Manage underrun callback, must be done under lock to avoid race with releaseBuffer()
+    bool newUnderrun = false;
+    if (flags & CBLK_UNDERRUN) {
+#if 0
+        // Currently in shared buffer mode, when the server reaches the end of buffer,
+        // the track stays active in continuous underrun state.  It's up to the application
+        // to pause or stop the track, or set the position to a new offset within buffer.
+        // This was some experimental code to auto-pause on underrun.   Keeping it here
+        // in "if 0" so we can re-visit this if we add a real sequencer for shared memory content.
+        if (mTransfer == TRANSFER_SHARED) {
+            mState = STATE_PAUSED;
+            active = false;
+        }
+#endif
+        if (!mInUnderrun) {
+            mInUnderrun = true;
+            newUnderrun = true;
+        }
+    }
+
+    // Get current position of server
+    Modulo<uint32_t> position(updateAndGetPosition_l());
+
+    // Manage marker callback
+    bool markerReached = false;
+    Modulo<uint32_t> markerPosition(mMarkerPosition);
+    // uses 32 bit wraparound for comparison with position.
+    if (!mMarkerReached && markerPosition.value() > 0 && position >= markerPosition) {
+        mMarkerReached = markerReached = true;
+    }
+
+    // Determine number of new position callback(s) that will be needed, while locked
+    size_t newPosCount = 0;
+    Modulo<uint32_t> newPosition(mNewPosition);
+    uint32_t updatePeriod = mUpdatePeriod;
+    // FIXME fails for wraparound, need 64 bits
+    if (updatePeriod > 0 && position >= newPosition) {
+        newPosCount = ((position - newPosition).value() / updatePeriod) + 1;
+        mNewPosition += updatePeriod * newPosCount;
+    }
+
+    // Cache other fields that will be needed soon
+    uint32_t sampleRate = mSampleRate;
+    float speed = mPlaybackRate.mSpeed;
+    const uint32_t notificationFrames = mNotificationFramesAct;
+    if (mRefreshRemaining) {
+        mRefreshRemaining = false;
+        mRemainingFrames = notificationFrames;
+        mRetryOnPartialBuffer = false;
+    }
+    size_t misalignment = mProxy->getMisalignment();
+    uint32_t sequence = mSequence;
+    sp<AudioTrackClientProxy> proxy = mProxy;
+
+    // Determine the number of new loop callback(s) that will be needed, while locked.
+    int loopCountNotifications = 0;
+    uint32_t loopPeriod = 0; // time in frames for next EVENT_LOOP_END or EVENT_BUFFER_END
+
+    if (mLoopCount > 0) {
+        int loopCount;
+        size_t bufferPosition;
+        mStaticProxy->getBufferPositionAndLoopCount(&bufferPosition, &loopCount);
+        loopPeriod = ((loopCount > 0) ? mLoopEnd : mFrameCount) - bufferPosition;
+        loopCountNotifications = min(mLoopCountNotified - loopCount, kMaxLoopCountNotifications);
+        mLoopCountNotified = loopCount; // discard any excess notifications
+    } else if (mLoopCount < 0) {
+        // FIXME: We're not accurate with notification count and position with infinite looping
+        // since loopCount from server side will always return -1 (we could decrement it).
+        size_t bufferPosition = mStaticProxy->getBufferPosition();
+        loopCountNotifications = int((flags & (CBLK_LOOP_CYCLE | CBLK_LOOP_FINAL)) != 0);
+        loopPeriod = mLoopEnd - bufferPosition;
+    } else if (/* mLoopCount == 0 && */ mSharedBuffer != 0) {
+        size_t bufferPosition = mStaticProxy->getBufferPosition();
+        loopPeriod = mFrameCount - bufferPosition;
+    }
+
+    // These fields don't need to be cached, because they are assigned only by set():
+    //     mTransfer, mCbf, mUserData, mFormat, mFrameSize, mFlags
+    // mFlags is also assigned by createTrack_l(), but not the bit we care about.
+
+    mLock.unlock();
+
+    // get anchor time to account for callbacks.
+    const nsecs_t timeBeforeCallbacks = systemTime();
+
+    if (waitStreamEnd) {
+        // FIXME:  Instead of blocking in proxy->waitStreamEndDone(), Callback thread
+        // should wait on proxy futex and handle CBLK_STREAM_END_DONE within this function
+        // (and make sure we don't callback for more data while we're stopping).
+        // This helps with position, marker notifications, and track invalidation.
+        struct timespec timeout;
+        timeout.tv_sec = WAIT_STREAM_END_TIMEOUT_SEC;
+        timeout.tv_nsec = 0;
+
+        status_t status = proxy->waitStreamEndDone(&timeout);
+        switch (status) {
+        case NO_ERROR:
+        case DEAD_OBJECT:
+        case TIMED_OUT:
+            if (status != DEAD_OBJECT) {
+                // for DEAD_OBJECT, we do not send a EVENT_STREAM_END after stop();
+                // instead, the application should handle the EVENT_NEW_IAUDIOTRACK.
+                mCbf(EVENT_STREAM_END, mUserData, NULL);
+            }
+            {
+                AutoMutex lock(mLock);
+                // The previously assigned value of waitStreamEnd is no longer valid,
+                // since the mutex has been unlocked and either the callback handler
+                // or another thread could have re-started the AudioTrack during that time.
+                waitStreamEnd = mState == STATE_STOPPING;
+                if (waitStreamEnd) {
+                    mState = STATE_STOPPED;
+                    mReleased = 0;
+                }
+            }
+            if (waitStreamEnd && status != DEAD_OBJECT) {
+               return NS_INACTIVE;
+            }
+            break;
+        }
+        return 0;
+    }
+
+    // perform callbacks while unlocked
+    if (newUnderrun) {
+        mCbf(EVENT_UNDERRUN, mUserData, NULL);
+    }
+    while (loopCountNotifications > 0) {
+        mCbf(EVENT_LOOP_END, mUserData, NULL);
+        --loopCountNotifications;
+    }
+    if (flags & CBLK_BUFFER_END) {
+        mCbf(EVENT_BUFFER_END, mUserData, NULL);
+    }
+    if (markerReached) {
+        mCbf(EVENT_MARKER, mUserData, &markerPosition);
+    }
+    while (newPosCount > 0) {
+        size_t temp = newPosition.value(); // FIXME size_t != uint32_t
+        mCbf(EVENT_NEW_POS, mUserData, &temp);
+        newPosition += updatePeriod;
+        newPosCount--;
+    }
+
+    if (mObservedSequence != sequence) {
+        mObservedSequence = sequence;
+        mCbf(EVENT_NEW_IAUDIOTRACK, mUserData, NULL);
+        // for offloaded tracks, just wait for the upper layers to recreate the track
+        if (isOffloadedOrDirect()) {
+            return NS_INACTIVE;
+        }
+    }
+
+    // if inactive, then don't run me again until re-started
+    if (!active) {
+        return NS_INACTIVE;
+    }
+
+    // Compute the estimated time until the next timed event (position, markers, loops)
+    // FIXME only for non-compressed audio
+    uint32_t minFrames = ~0;
+    if (!markerReached && position < markerPosition) {
+        minFrames = (markerPosition - position).value();
+    }
+    if (loopPeriod > 0 && loopPeriod < minFrames) {
+        // loopPeriod is already adjusted for actual position.
+        minFrames = loopPeriod;
+    }
+    if (updatePeriod > 0) {
+        minFrames = min(minFrames, (newPosition - position).value());
+    }
+
+    // If > 0, poll periodically to recover from a stuck server.  A good value is 2.
+    static const uint32_t kPoll = 0;
+    if (kPoll > 0 && mTransfer == TRANSFER_CALLBACK && kPoll * notificationFrames < minFrames) {
+        minFrames = kPoll * notificationFrames;
+    }
+
+    // This "fudge factor" avoids soaking CPU, and compensates for late progress by server
+    static const nsecs_t kWaitPeriodNs = WAIT_PERIOD_MS * 1000000LL;
+    const nsecs_t timeAfterCallbacks = systemTime();
+
+    // Convert frame units to time units
+    nsecs_t ns = NS_WHENEVER;
+    if (minFrames != (uint32_t) ~0) {
+        ns = framesToNanoseconds(minFrames, sampleRate, speed) + kWaitPeriodNs;
+        ns -= (timeAfterCallbacks - timeBeforeCallbacks);  // account for callback time
+        // TODO: Should we warn if the callback time is too long?
+        if (ns < 0) ns = 0;
+    }
+
+    // If not supplying data by EVENT_MORE_DATA, then we're done
+    if (mTransfer != TRANSFER_CALLBACK) {
+        return ns;
+    }
+
+    // EVENT_MORE_DATA callback handling.
+    // Timing for linear pcm audio data formats can be derived directly from the
+    // buffer fill level.
+    // Timing for compressed data is not directly available from the buffer fill level,
+    // rather indirectly from waiting for blocking mode callbacks or waiting for obtain()
+    // to return a certain fill level.
+
+    struct timespec timeout;
+    const struct timespec *requested = &ClientProxy::kForever;
+    if (ns != NS_WHENEVER) {
+        timeout.tv_sec = ns / 1000000000LL;
+        timeout.tv_nsec = ns % 1000000000LL;
+        ALOGV("timeout %ld.%03d", timeout.tv_sec, (int) timeout.tv_nsec / 1000000);
+        requested = &timeout;
+    }
+
+    size_t writtenFrames = 0;
+    while (mRemainingFrames > 0) {
+
+        Buffer audioBuffer;
+        audioBuffer.frameCount = mRemainingFrames;
+        size_t nonContig;
+        status_t err = obtainBuffer(&audioBuffer, requested, NULL, &nonContig);
+        LOG_ALWAYS_FATAL_IF((err != NO_ERROR) != (audioBuffer.frameCount == 0),
+                "obtainBuffer() err=%d frameCount=%zu", err, audioBuffer.frameCount);
+        requested = &ClientProxy::kNonBlocking;
+        size_t avail = audioBuffer.frameCount + nonContig;
+        ALOGV("obtainBuffer(%u) returned %zu = %zu + %zu err %d",
+                mRemainingFrames, avail, audioBuffer.frameCount, nonContig, err);
+        if (err != NO_ERROR) {
+            if (err == TIMED_OUT || err == WOULD_BLOCK || err == -EINTR ||
+                    (isOffloaded() && (err == DEAD_OBJECT))) {
+                // FIXME bug 25195759
+                return 1000000;
+            }
+            ALOGE("Error %d obtaining an audio buffer, giving up.", err);
+            return NS_NEVER;
+        }
+
+        if (mRetryOnPartialBuffer && audio_has_proportional_frames(mFormat)) {
+            mRetryOnPartialBuffer = false;
+            if (avail < mRemainingFrames) {
+                if (ns > 0) { // account for obtain time
+                    const nsecs_t timeNow = systemTime();
+                    ns = max((nsecs_t)0, ns - (timeNow - timeAfterCallbacks));
+                }
+                nsecs_t myns = framesToNanoseconds(mRemainingFrames - avail, sampleRate, speed);
+                if (ns < 0 /* NS_WHENEVER */ || myns < ns) {
+                    ns = myns;
+                }
+                return ns;
+            }
+        }
+
+        size_t reqSize = audioBuffer.size;
+        mCbf(EVENT_MORE_DATA, mUserData, &audioBuffer);
+        size_t writtenSize = audioBuffer.size;
+
+        // Sanity check on returned size
+        if (ssize_t(writtenSize) < 0 || writtenSize > reqSize) {
+            ALOGE("EVENT_MORE_DATA requested %zu bytes but callback returned %zd bytes",
+                    reqSize, ssize_t(writtenSize));
+            return NS_NEVER;
+        }
+
+        if (writtenSize == 0) {
+            // The callback is done filling buffers
+            // Keep this thread going to handle timed events and
+            // still try to get more data in intervals of WAIT_PERIOD_MS
+            // but don't just loop and block the CPU, so wait
+
+            // mCbf(EVENT_MORE_DATA, ...) might either
+            // (1) Block until it can fill the buffer, returning 0 size on EOS.
+            // (2) Block until it can fill the buffer, returning 0 data (silence) on EOS.
+            // (3) Return 0 size when no data is available, does not wait for more data.
+            //
+            // (1) and (2) occurs with AudioPlayer/AwesomePlayer; (3) occurs with NuPlayer.
+            // We try to compute the wait time to avoid a tight sleep-wait cycle,
+            // especially for case (3).
+            //
+            // The decision to support (1) and (2) affect the sizing of mRemainingFrames
+            // and this loop; whereas for case (3) we could simply check once with the full
+            // buffer size and skip the loop entirely.
+
+            nsecs_t myns;
+            if (audio_has_proportional_frames(mFormat)) {
+                // time to wait based on buffer occupancy
+                const nsecs_t datans = mRemainingFrames <= avail ? 0 :
+                        framesToNanoseconds(mRemainingFrames - avail, sampleRate, speed);
+                // audio flinger thread buffer size (TODO: adjust for fast tracks)
+                // FIXME: use mAfFrameCountHAL instead of mAfFrameCount below for fast tracks.
+                const nsecs_t afns = framesToNanoseconds(mAfFrameCount, mAfSampleRate, speed);
+                // add a half the AudioFlinger buffer time to avoid soaking CPU if datans is 0.
+                myns = datans + (afns / 2);
+            } else {
+                // FIXME: This could ping quite a bit if the buffer isn't full.
+                // Note that when mState is stopping we waitStreamEnd, so it never gets here.
+                myns = kWaitPeriodNs;
+            }
+            if (ns > 0) { // account for obtain and callback time
+                const nsecs_t timeNow = systemTime();
+                ns = max((nsecs_t)0, ns - (timeNow - timeAfterCallbacks));
+            }
+            if (ns < 0 /* NS_WHENEVER */ || myns < ns) {
+                ns = myns;
+            }
+            return ns;
+        }
+
+        size_t releasedFrames = writtenSize / mFrameSize;
+        audioBuffer.frameCount = releasedFrames;
+        mRemainingFrames -= releasedFrames;
+        if (misalignment >= releasedFrames) {
+            misalignment -= releasedFrames;
+        } else {
+            misalignment = 0;
+        }
+
+        releaseBuffer(&audioBuffer);
+        writtenFrames += releasedFrames;
+
+        // FIXME here is where we would repeat EVENT_MORE_DATA again on same advanced buffer
+        // if callback doesn't like to accept the full chunk
+        if (writtenSize < reqSize) {
+            continue;
+        }
+
+        // There could be enough non-contiguous frames available to satisfy the remaining request
+        if (mRemainingFrames <= nonContig) {
+            continue;
+        }
+
+#if 0
+        // This heuristic tries to collapse a series of EVENT_MORE_DATA that would total to a
+        // sum <= notificationFrames.  It replaces that series by at most two EVENT_MORE_DATA
+        // that total to a sum == notificationFrames.
+        if (0 < misalignment && misalignment <= mRemainingFrames) {
+            mRemainingFrames = misalignment;
+            return ((double)mRemainingFrames * 1100000000) / ((double)sampleRate * speed);
+        }
+#endif
+
+    }
+    if (writtenFrames > 0) {
+        AutoMutex lock(mLock);
+        mFramesWritten += writtenFrames;
+    }
+    mRemainingFrames = notificationFrames;
+    mRetryOnPartialBuffer = true;
+
+    // A lot has transpired since ns was calculated, so run again immediately and re-calculate
+    return 0;
+}
+
+status_t AudioTrack::restoreTrack_l(const char *from)
+{
+    ALOGW("dead IAudioTrack, %s, creating a new one from %s()",
+          isOffloadedOrDirect_l() ? "Offloaded or Direct" : "PCM", from);
+    ++mSequence;
+
+    // refresh the audio configuration cache in this process to make sure we get new
+    // output parameters and new IAudioFlinger in createTrack_l()
+    AudioSystem::clearAudioConfigCache();
+
+    if (isOffloadedOrDirect_l() || mDoNotReconnect) {
+        // FIXME re-creation of offloaded and direct tracks is not yet implemented;
+        // reconsider enabling for linear PCM encodings when position can be preserved.
+        return DEAD_OBJECT;
+    }
+
+    // Save so we can return count since creation.
+    mUnderrunCountOffset = getUnderrunCount_l();
+
+    // save the old static buffer position
+    uint32_t staticPosition = 0;
+    size_t bufferPosition = 0;
+    int loopCount = 0;
+    if (mStaticProxy != 0) {
+        mStaticProxy->getBufferPositionAndLoopCount(&bufferPosition, &loopCount);
+        staticPosition = mStaticProxy->getPosition().unsignedValue();
+    }
+
+    mFlags = mOrigFlags;
+
+    // If a new IAudioTrack is successfully created, createTrack_l() will modify the
+    // following member variables: mAudioTrack, mCblkMemory and mCblk.
+    // It will also delete the strong references on previous IAudioTrack and IMemory.
+    // If a new IAudioTrack cannot be created, the previous (dead) instance will be left intact.
+    status_t result = createTrack_l();
+
+    if (result == NO_ERROR) {
+        // take the frames that will be lost by track recreation into account in saved position
+        // For streaming tracks, this is the amount we obtained from the user/client
+        // (not the number actually consumed at the server - those are already lost).
+        if (mStaticProxy == 0) {
+            mPosition = mReleased;
+        }
+        // Continue playback from last known position and restore loop.
+        if (mStaticProxy != 0) {
+            if (loopCount != 0) {
+                mStaticProxy->setBufferPositionAndLoop(bufferPosition,
+                        mLoopStart, mLoopEnd, loopCount);
+            } else {
+                mStaticProxy->setBufferPosition(bufferPosition);
+                if (bufferPosition == mFrameCount) {
+                    ALOGD("restoring track at end of static buffer");
+                }
+            }
+        }
+        // restore volume handler
+        mVolumeHandler->forall([this](const VolumeShaper &shaper) -> VolumeShaper::Status {
+            sp<VolumeShaper::Operation> operationToEnd =
+                    new VolumeShaper::Operation(shaper.mOperation);
+            // TODO: Ideally we would restore to the exact xOffset position
+            // as returned by getVolumeShaperState(), but we don't have that
+            // information when restoring at the client unless we periodically poll
+            // the server or create shared memory state.
+            //
+            // For now, we simply advance to the end of the VolumeShaper effect
+            // if it has been started.
+            if (shaper.isStarted()) {
+                operationToEnd->setNormalizedTime(1.f);
+            }
+            return mAudioTrack->applyVolumeShaper(shaper.mConfiguration, operationToEnd);
+        });
+
+        if (mState == STATE_ACTIVE) {
+            result = mAudioTrack->start();
+        }
+        // server resets to zero so we offset
+        mFramesWrittenServerOffset =
+                mStaticProxy.get() != nullptr ? staticPosition : mFramesWritten;
+        mFramesWrittenAtRestore = mFramesWrittenServerOffset;
+    }
+    if (result != NO_ERROR) {
+        ALOGW("restoreTrack_l() failed status %d", result);
+        mState = STATE_STOPPED;
+        mReleased = 0;
+    }
+
+    return result;
+}
+
+Modulo<uint32_t> AudioTrack::updateAndGetPosition_l()
+{
+    // This is the sole place to read server consumed frames
+    Modulo<uint32_t> newServer(mProxy->getPosition());
+    const int32_t delta = (newServer - mServer).signedValue();
+    // TODO There is controversy about whether there can be "negative jitter" in server position.
+    //      This should be investigated further, and if possible, it should be addressed.
+    //      A more definite failure mode is infrequent polling by client.
+    //      One could call (void)getPosition_l() in releaseBuffer(),
+    //      so mReleased and mPosition are always lock-step as best possible.
+    //      That should ensure delta never goes negative for infrequent polling
+    //      unless the server has more than 2^31 frames in its buffer,
+    //      in which case the use of uint32_t for these counters has bigger issues.
+    ALOGE_IF(delta < 0,
+            "detected illegal retrograde motion by the server: mServer advanced by %d",
+            delta);
+    mServer = newServer;
+    if (delta > 0) { // avoid retrograde
+        mPosition += delta;
+    }
+    return mPosition;
+}
+
+bool AudioTrack::isSampleRateSpeedAllowed_l(uint32_t sampleRate, float speed) const
+{
+    // applicable for mixing tracks only (not offloaded or direct)
+    if (mStaticProxy != 0) {
+        return true; // static tracks do not have issues with buffer sizing.
+    }
+    const size_t minFrameCount =
+            calculateMinFrameCount(mAfLatency, mAfFrameCount, mAfSampleRate, sampleRate, speed
+                /*, 0 mNotificationsPerBufferReq*/);
+    ALOGV("isSampleRateSpeedAllowed_l mFrameCount %zu  minFrameCount %zu",
+            mFrameCount, minFrameCount);
+    return mFrameCount >= minFrameCount;
+}
+
+status_t AudioTrack::setParameters(const String8& keyValuePairs)
+{
+    AutoMutex lock(mLock);
+    return mAudioTrack->setParameters(keyValuePairs);
+}
+
+VolumeShaper::Status AudioTrack::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation)
+{
+    AutoMutex lock(mLock);
+    mVolumeHandler->setIdIfNecessary(configuration);
+    VolumeShaper::Status status = mAudioTrack->applyVolumeShaper(configuration, operation);
+
+    if (status == DEAD_OBJECT) {
+        if (restoreTrack_l("applyVolumeShaper") == OK) {
+            status = mAudioTrack->applyVolumeShaper(configuration, operation);
+        }
+    }
+    if (status >= 0) {
+        // save VolumeShaper for restore
+        mVolumeHandler->applyVolumeShaper(configuration, operation);
+        if (mState == STATE_ACTIVE || mState == STATE_STOPPING) {
+            mVolumeHandler->setStarted();
+        }
+    } else {
+        // warn only if not an expected restore failure.
+        ALOGW_IF(!((isOffloadedOrDirect_l() || mDoNotReconnect) && status == DEAD_OBJECT),
+                "applyVolumeShaper failed: %d", status);
+    }
+    return status;
+}
+
+sp<VolumeShaper::State> AudioTrack::getVolumeShaperState(int id)
+{
+    AutoMutex lock(mLock);
+    sp<VolumeShaper::State> state = mAudioTrack->getVolumeShaperState(id);
+    if (state.get() == nullptr && (mCblk->mFlags & CBLK_INVALID) != 0) {
+        if (restoreTrack_l("getVolumeShaperState") == OK) {
+            state = mAudioTrack->getVolumeShaperState(id);
+        }
+    }
+    return state;
+}
+
+status_t AudioTrack::getTimestamp(ExtendedTimestamp *timestamp)
+{
+    if (timestamp == nullptr) {
+        return BAD_VALUE;
+    }
+    AutoMutex lock(mLock);
+    return getTimestamp_l(timestamp);
+}
+
+status_t AudioTrack::getTimestamp_l(ExtendedTimestamp *timestamp)
+{
+    if (mCblk->mFlags & CBLK_INVALID) {
+        const status_t status = restoreTrack_l("getTimestampExtended");
+        if (status != OK) {
+            // per getTimestamp() API doc in header, we return DEAD_OBJECT here,
+            // recommending that the track be recreated.
+            return DEAD_OBJECT;
+        }
+    }
+    // check for offloaded/direct here in case restoring somehow changed those flags.
+    if (isOffloadedOrDirect_l()) {
+        return INVALID_OPERATION; // not supported
+    }
+    status_t status = mProxy->getTimestamp(timestamp);
+    LOG_ALWAYS_FATAL_IF(status != OK, "status %d not allowed from proxy getTimestamp", status);
+    bool found = false;
+    timestamp->mPosition[ExtendedTimestamp::LOCATION_CLIENT] = mFramesWritten;
+    timestamp->mTimeNs[ExtendedTimestamp::LOCATION_CLIENT] = 0;
+    // server side frame offset in case AudioTrack has been restored.
+    for (int i = ExtendedTimestamp::LOCATION_SERVER;
+            i < ExtendedTimestamp::LOCATION_MAX; ++i) {
+        if (timestamp->mTimeNs[i] >= 0) {
+            // apply server offset (frames flushed is ignored
+            // so we don't report the jump when the flush occurs).
+            timestamp->mPosition[i] += mFramesWrittenServerOffset;
+            found = true;
+        }
+    }
+    return found ? OK : WOULD_BLOCK;
+}
+
+status_t AudioTrack::getTimestamp(AudioTimestamp& timestamp)
+{
+    AutoMutex lock(mLock);
+    return getTimestamp_l(timestamp);
+}
+
+status_t AudioTrack::getTimestamp_l(AudioTimestamp& timestamp)
+{
+    bool previousTimestampValid = mPreviousTimestampValid;
+    // Set false here to cover all the error return cases.
+    mPreviousTimestampValid = false;
+
+    switch (mState) {
+    case STATE_ACTIVE:
+    case STATE_PAUSED:
+        break; // handle below
+    case STATE_FLUSHED:
+    case STATE_STOPPED:
+        return WOULD_BLOCK;
+    case STATE_STOPPING:
+    case STATE_PAUSED_STOPPING:
+        if (!isOffloaded_l()) {
+            return INVALID_OPERATION;
+        }
+        break; // offloaded tracks handled below
+    default:
+        LOG_ALWAYS_FATAL("Invalid mState in getTimestamp(): %d", mState);
+        break;
+    }
+
+    if (mCblk->mFlags & CBLK_INVALID) {
+        const status_t status = restoreTrack_l("getTimestamp");
+        if (status != OK) {
+            // per getTimestamp() API doc in header, we return DEAD_OBJECT here,
+            // recommending that the track be recreated.
+            return DEAD_OBJECT;
+        }
+    }
+
+    // The presented frame count must always lag behind the consumed frame count.
+    // To avoid a race, read the presented frames first.  This ensures that presented <= consumed.
+
+    status_t status;
+    if (isOffloadedOrDirect_l()) {
+        // use Binder to get timestamp
+        status = mAudioTrack->getTimestamp(timestamp);
+    } else {
+        // read timestamp from shared memory
+        ExtendedTimestamp ets;
+        status = mProxy->getTimestamp(&ets);
+        if (status == OK) {
+            ExtendedTimestamp::Location location;
+            status = ets.getBestTimestamp(&timestamp, &location);
+
+            if (status == OK) {
+                // It is possible that the best location has moved from the kernel to the server.
+                // In this case we adjust the position from the previous computed latency.
+                if (location == ExtendedTimestamp::LOCATION_SERVER) {
+                    ALOGW_IF(mPreviousLocation == ExtendedTimestamp::LOCATION_KERNEL,
+                            "getTimestamp() location moved from kernel to server");
+                    // check that the last kernel OK time info exists and the positions
+                    // are valid (if they predate the current track, the positions may
+                    // be zero or negative).
+                    const int64_t frames =
+                            (ets.mTimeNs[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK] < 0 ||
+                            ets.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK] < 0 ||
+                            ets.mPosition[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK] <= 0 ||
+                            ets.mPosition[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK] <= 0)
+                            ?
+                            int64_t((double)mAfLatency * mSampleRate * mPlaybackRate.mSpeed
+                                    / 1000)
+                            :
+                            (ets.mPosition[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK]
+                            - ets.mPosition[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK]);
+                    ALOGV("frame adjustment:%lld  timestamp:%s",
+                            (long long)frames, ets.toString().c_str());
+                    if (frames >= ets.mPosition[location]) {
+                        timestamp.mPosition = 0;
+                    } else {
+                        timestamp.mPosition = (uint32_t)(ets.mPosition[location] - frames);
+                    }
+                } else if (location == ExtendedTimestamp::LOCATION_KERNEL) {
+                    ALOGV_IF(mPreviousLocation == ExtendedTimestamp::LOCATION_SERVER,
+                            "getTimestamp() location moved from server to kernel");
+                }
+
+                // We update the timestamp time even when paused.
+                if (mState == STATE_PAUSED /* not needed: STATE_PAUSED_STOPPING */) {
+                    const int64_t now = systemTime();
+                    const int64_t at = convertTimespecToNs(timestamp.mTime);
+                    const int64_t lag =
+                            (ets.mTimeNs[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK] < 0 ||
+                                ets.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK] < 0)
+                            ? int64_t(mAfLatency * 1000000LL)
+                            : (ets.mPosition[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK]
+                             - ets.mPosition[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK])
+                             * NANOS_PER_SECOND / mSampleRate;
+                    const int64_t limit = now - lag; // no earlier than this limit
+                    if (at < limit) {
+                        ALOGV("timestamp pause lag:%lld adjusting from %lld to %lld",
+                                (long long)lag, (long long)at, (long long)limit);
+                        timestamp.mTime.tv_sec = limit / NANOS_PER_SECOND;
+                        timestamp.mTime.tv_nsec = limit % NANOS_PER_SECOND; // compiler opt.
+                    }
+                }
+                mPreviousLocation = location;
+            } else {
+                // right after AudioTrack is started, one may not find a timestamp
+                ALOGV("getBestTimestamp did not find timestamp");
+            }
+        }
+        if (status == INVALID_OPERATION) {
+            // INVALID_OPERATION occurs when no timestamp has been issued by the server;
+            // other failures are signaled by a negative time.
+            // If we come out of FLUSHED or STOPPED where the position is known
+            // to be zero we convert this to WOULD_BLOCK (with the implicit meaning of
+            // "zero" for NuPlayer).  We don't convert for track restoration as position
+            // does not reset.
+            ALOGV("timestamp server offset:%lld restore frames:%lld",
+                    (long long)mFramesWrittenServerOffset, (long long)mFramesWrittenAtRestore);
+            if (mFramesWrittenServerOffset != mFramesWrittenAtRestore) {
+                status = WOULD_BLOCK;
+            }
+        }
+    }
+    if (status != NO_ERROR) {
+        ALOGV_IF(status != WOULD_BLOCK, "getTimestamp error:%#x", status);
+        return status;
+    }
+    if (isOffloadedOrDirect_l()) {
+        if (isOffloaded_l() && (mState == STATE_PAUSED || mState == STATE_PAUSED_STOPPING)) {
+            // use cached paused position in case another offloaded track is running.
+            timestamp.mPosition = mPausedPosition;
+            clock_gettime(CLOCK_MONOTONIC, &timestamp.mTime);
+            // TODO: adjust for delay
+            return NO_ERROR;
+        }
+
+        // Check whether a pending flush or stop has completed, as those commands may
+        // be asynchronous or return near finish or exhibit glitchy behavior.
+        //
+        // Originally this showed up as the first timestamp being a continuation of
+        // the previous song under gapless playback.
+        // However, we sometimes see zero timestamps, then a glitch of
+        // the previous song's position, and then correct timestamps afterwards.
+        if (mStartUs != 0 && mSampleRate != 0) {
+            static const int kTimeJitterUs = 100000; // 100 ms
+            static const int k1SecUs = 1000000;
+
+            const int64_t timeNow = getNowUs();
+
+            if (timeNow < mStartUs + k1SecUs) { // within first second of starting
+                const int64_t timestampTimeUs = convertTimespecToUs(timestamp.mTime);
+                if (timestampTimeUs < mStartUs) {
+                    return WOULD_BLOCK;  // stale timestamp time, occurs before start.
+                }
+                const int64_t deltaTimeUs = timestampTimeUs - mStartUs;
+                const int64_t deltaPositionByUs = (double)timestamp.mPosition * 1000000
+                        / ((double)mSampleRate * mPlaybackRate.mSpeed);
+
+                if (deltaPositionByUs > deltaTimeUs + kTimeJitterUs) {
+                    // Verify that the counter can't count faster than the sample rate
+                    // since the start time.  If greater, then that means we may have failed
+                    // to completely flush or stop the previous playing track.
+                    ALOGW_IF(!mTimestampStartupGlitchReported,
+                            "getTimestamp startup glitch detected"
+                            " deltaTimeUs(%lld) deltaPositionUs(%lld) tsmPosition(%u)",
+                            (long long)deltaTimeUs, (long long)deltaPositionByUs,
+                            timestamp.mPosition);
+                    mTimestampStartupGlitchReported = true;
+                    if (previousTimestampValid
+                            && mPreviousTimestamp.mPosition == 0 /* should be true if valid */) {
+                        timestamp = mPreviousTimestamp;
+                        mPreviousTimestampValid = true;
+                        return NO_ERROR;
+                    }
+                    return WOULD_BLOCK;
+                }
+                if (deltaPositionByUs != 0) {
+                    mStartUs = 0; // don't check again, we got valid nonzero position.
+                }
+            } else {
+                mStartUs = 0; // don't check again, start time expired.
+            }
+            mTimestampStartupGlitchReported = false;
+        }
+    } else {
+        // Update the mapping between local consumed (mPosition) and server consumed (mServer)
+        (void) updateAndGetPosition_l();
+        // Server consumed (mServer) and presented both use the same server time base,
+        // and server consumed is always >= presented.
+        // The delta between these represents the number of frames in the buffer pipeline.
+        // If this delta between these is greater than the client position, it means that
+        // actually presented is still stuck at the starting line (figuratively speaking),
+        // waiting for the first frame to go by.  So we can't report a valid timestamp yet.
+        // Note: We explicitly use non-Modulo comparison here - potential wrap issue when
+        // mPosition exceeds 32 bits.
+        // TODO Remove when timestamp is updated to contain pipeline status info.
+        const int32_t pipelineDepthInFrames = (mServer - timestamp.mPosition).signedValue();
+        if (pipelineDepthInFrames > 0 /* should be true, but we check anyways */
+                && (uint32_t)pipelineDepthInFrames > mPosition.value()) {
+            return INVALID_OPERATION;
+        }
+        // Convert timestamp position from server time base to client time base.
+        // TODO The following code should work OK now because timestamp.mPosition is 32-bit.
+        // But if we change it to 64-bit then this could fail.
+        // Use Modulo computation here.
+        timestamp.mPosition = (mPosition - mServer + timestamp.mPosition).value();
+        // Immediately after a call to getPosition_l(), mPosition and
+        // mServer both represent the same frame position.  mPosition is
+        // in client's point of view, and mServer is in server's point of
+        // view.  So the difference between them is the "fudge factor"
+        // between client and server views due to stop() and/or new
+        // IAudioTrack.  And timestamp.mPosition is initially in server's
+        // point of view, so we need to apply the same fudge factor to it.
+    }
+
+    // Prevent retrograde motion in timestamp.
+    // This is sometimes caused by erratic reports of the available space in the ALSA drivers.
+    if (status == NO_ERROR) {
+        if (previousTimestampValid) {
+            const int64_t previousTimeNanos = convertTimespecToNs(mPreviousTimestamp.mTime);
+            const int64_t currentTimeNanos = convertTimespecToNs(timestamp.mTime);
+            if (currentTimeNanos < previousTimeNanos) {
+                ALOGW("retrograde timestamp time corrected, %lld < %lld",
+                        (long long)currentTimeNanos, (long long)previousTimeNanos);
+                timestamp.mTime = mPreviousTimestamp.mTime;
+            }
+
+            // Looking at signed delta will work even when the timestamps
+            // are wrapping around.
+            int32_t deltaPosition = (Modulo<uint32_t>(timestamp.mPosition)
+                    - mPreviousTimestamp.mPosition).signedValue();
+            if (deltaPosition < 0) {
+                // Only report once per position instead of spamming the log.
+                if (!mRetrogradeMotionReported) {
+                    ALOGW("retrograde timestamp position corrected, %d = %u - %u",
+                            deltaPosition,
+                            timestamp.mPosition,
+                            mPreviousTimestamp.mPosition);
+                    mRetrogradeMotionReported = true;
+                }
+            } else {
+                mRetrogradeMotionReported = false;
+            }
+            if (deltaPosition < 0) {
+                timestamp.mPosition = mPreviousTimestamp.mPosition;
+                deltaPosition = 0;
+            }
+#if 0
+            // Uncomment this to verify audio timestamp rate.
+            const int64_t deltaTime =
+                    convertTimespecToNs(timestamp.mTime) - previousTimeNanos;
+            if (deltaTime != 0) {
+                const int64_t computedSampleRate =
+                        deltaPosition * (long long)NANOS_PER_SECOND / deltaTime;
+                ALOGD("computedSampleRate:%u  sampleRate:%u",
+                        (unsigned)computedSampleRate, mSampleRate);
+            }
+#endif
+        }
+        mPreviousTimestamp = timestamp;
+        mPreviousTimestampValid = true;
+    }
+
+    return status;
+}
+
+String8 AudioTrack::getParameters(const String8& keys)
+{
+    audio_io_handle_t output = getOutput();
+    if (output != AUDIO_IO_HANDLE_NONE) {
+        return AudioSystem::getParameters(output, keys);
+    } else {
+        return String8::empty();
+    }
+}
+
+bool AudioTrack::isOffloaded() const
+{
+    AutoMutex lock(mLock);
+    return isOffloaded_l();
+}
+
+bool AudioTrack::isDirect() const
+{
+    AutoMutex lock(mLock);
+    return isDirect_l();
+}
+
+bool AudioTrack::isOffloadedOrDirect() const
+{
+    AutoMutex lock(mLock);
+    return isOffloadedOrDirect_l();
+}
+
+
+status_t AudioTrack::dump(int fd, const Vector<String16>& args __unused) const
+{
+
+    const size_t SIZE = 256;
+    char buffer[SIZE];
+    String8 result;
+
+    result.append(" AudioTrack::dump\n");
+    snprintf(buffer, 255, "  stream type(%d), left - right volume(%f, %f)\n", mStreamType,
+            mVolume[AUDIO_INTERLEAVE_LEFT], mVolume[AUDIO_INTERLEAVE_RIGHT]);
+    result.append(buffer);
+    snprintf(buffer, 255, "  format(%d), channel count(%d), frame count(%zu)\n", mFormat,
+            mChannelCount, mFrameCount);
+    result.append(buffer);
+    snprintf(buffer, 255, "  sample rate(%u), speed(%f), status(%d)\n",
+            mSampleRate, mPlaybackRate.mSpeed, mStatus);
+    result.append(buffer);
+    snprintf(buffer, 255, "  state(%d), latency (%d)\n", mState, mLatency);
+    result.append(buffer);
+    ::write(fd, result.string(), result.size());
+    return NO_ERROR;
+}
+
+uint32_t AudioTrack::getUnderrunCount() const
+{
+    AutoMutex lock(mLock);
+    return getUnderrunCount_l();
+}
+
+uint32_t AudioTrack::getUnderrunCount_l() const
+{
+    return mProxy->getUnderrunCount() + mUnderrunCountOffset;
+}
+
+uint32_t AudioTrack::getUnderrunFrames() const
+{
+    AutoMutex lock(mLock);
+    return mProxy->getUnderrunFrames();
+}
+
+status_t AudioTrack::addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback)
+{
+    if (callback == 0) {
+        ALOGW("%s adding NULL callback!", __FUNCTION__);
+        return BAD_VALUE;
+    }
+    AutoMutex lock(mLock);
+    if (mDeviceCallback == callback) {
+        ALOGW("%s adding same callback!", __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+    status_t status = NO_ERROR;
+    if (mOutput != AUDIO_IO_HANDLE_NONE) {
+        if (mDeviceCallback != 0) {
+            ALOGW("%s callback already present!", __FUNCTION__);
+            AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mOutput);
+        }
+        status = AudioSystem::addAudioDeviceCallback(callback, mOutput);
+    }
+    mDeviceCallback = callback;
+    return status;
+}
+
+status_t AudioTrack::removeAudioDeviceCallback(
+        const sp<AudioSystem::AudioDeviceCallback>& callback)
+{
+    if (callback == 0) {
+        ALOGW("%s removing NULL callback!", __FUNCTION__);
+        return BAD_VALUE;
+    }
+    AutoMutex lock(mLock);
+    if (mDeviceCallback != callback) {
+        ALOGW("%s removing different callback!", __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+    if (mOutput != AUDIO_IO_HANDLE_NONE) {
+        AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mOutput);
+    }
+    mDeviceCallback = 0;
+    return NO_ERROR;
+}
+
+status_t AudioTrack::pendingDuration(int32_t *msec, ExtendedTimestamp::Location location)
+{
+    if (msec == nullptr ||
+            (location != ExtendedTimestamp::LOCATION_SERVER
+                    && location != ExtendedTimestamp::LOCATION_KERNEL)) {
+        return BAD_VALUE;
+    }
+    AutoMutex lock(mLock);
+    // inclusive of offloaded and direct tracks.
+    //
+    // It is possible, but not enabled, to allow duration computation for non-pcm
+    // audio_has_proportional_frames() formats because currently they have
+    // the drain rate equivalent to the pcm sample rate * framesize.
+    if (!isPurePcmData_l()) {
+        return INVALID_OPERATION;
+    }
+    ExtendedTimestamp ets;
+    if (getTimestamp_l(&ets) == OK
+            && ets.mTimeNs[location] > 0) {
+        int64_t diff = ets.mPosition[ExtendedTimestamp::LOCATION_CLIENT]
+                - ets.mPosition[location];
+        if (diff < 0) {
+            *msec = 0;
+        } else {
+            // ms is the playback time by frames
+            int64_t ms = (int64_t)((double)diff * 1000 /
+                    ((double)mSampleRate * mPlaybackRate.mSpeed));
+            // clockdiff is the timestamp age (negative)
+            int64_t clockdiff = (mState != STATE_ACTIVE) ? 0 :
+                    ets.mTimeNs[location]
+                    + ets.mTimebaseOffset[ExtendedTimestamp::TIMEBASE_MONOTONIC]
+                    - systemTime(SYSTEM_TIME_MONOTONIC);
+
+            //ALOGV("ms: %lld  clockdiff: %lld", (long long)ms, (long long)clockdiff);
+            static const int NANOS_PER_MILLIS = 1000000;
+            *msec = (int32_t)(ms + clockdiff / NANOS_PER_MILLIS);
+        }
+        return NO_ERROR;
+    }
+    if (location != ExtendedTimestamp::LOCATION_SERVER) {
+        return INVALID_OPERATION; // LOCATION_KERNEL is not available
+    }
+    // use server position directly (offloaded and direct arrive here)
+    updateAndGetPosition_l();
+    int32_t diff = (Modulo<uint32_t>(mFramesWritten) - mPosition).signedValue();
+    *msec = (diff <= 0) ? 0
+            : (int32_t)((double)diff * 1000 / ((double)mSampleRate * mPlaybackRate.mSpeed));
+    return NO_ERROR;
+}
+
+bool AudioTrack::hasStarted()
+{
+    AutoMutex lock(mLock);
+    switch (mState) {
+    case STATE_STOPPED:
+        if (isOffloadedOrDirect_l()) {
+            // check if we have started in the past to return true.
+            return mStartUs > 0;
+        }
+        // A normal audio track may still be draining, so
+        // check if stream has ended.  This covers fasttrack position
+        // instability and start/stop without any data written.
+        if (mProxy->getStreamEndDone()) {
+            return true;
+        }
+        // fall through
+    case STATE_ACTIVE:
+    case STATE_STOPPING:
+        break;
+    case STATE_PAUSED:
+    case STATE_PAUSED_STOPPING:
+    case STATE_FLUSHED:
+        return false;  // we're not active
+    default:
+        LOG_ALWAYS_FATAL("Invalid mState in hasStarted(): %d", mState);
+        break;
+    }
+
+    // wait indicates whether we need to wait for a timestamp.
+    // This is conservatively figured - if we encounter an unexpected error
+    // then we will not wait.
+    bool wait = false;
+    if (isOffloadedOrDirect_l()) {
+        AudioTimestamp ts;
+        status_t status = getTimestamp_l(ts);
+        if (status == WOULD_BLOCK) {
+            wait = true;
+        } else if (status == OK) {
+            wait = (ts.mPosition == 0 || ts.mPosition == mStartTs.mPosition);
+        }
+        ALOGV("hasStarted wait:%d  ts:%u  start position:%lld",
+                (int)wait,
+                ts.mPosition,
+                (long long)mStartTs.mPosition);
+    } else {
+        int location = ExtendedTimestamp::LOCATION_SERVER; // for ALOG
+        ExtendedTimestamp ets;
+        status_t status = getTimestamp_l(&ets);
+        if (status == WOULD_BLOCK) {  // no SERVER or KERNEL frame info in ets
+            wait = true;
+        } else if (status == OK) {
+            for (location = ExtendedTimestamp::LOCATION_KERNEL;
+                    location >= ExtendedTimestamp::LOCATION_SERVER; --location) {
+                if (ets.mTimeNs[location] < 0 || mStartEts.mTimeNs[location] < 0) {
+                    continue;
+                }
+                wait = ets.mPosition[location] == 0
+                        || ets.mPosition[location] == mStartEts.mPosition[location];
+                break;
+            }
+        }
+        ALOGV("hasStarted wait:%d  ets:%lld  start position:%lld",
+                (int)wait,
+                (long long)ets.mPosition[location],
+                (long long)mStartEts.mPosition[location]);
+    }
+    return !wait;
+}
+
+// =========================================================================
+
+void AudioTrack::DeathNotifier::binderDied(const wp<IBinder>& who __unused)
+{
+    sp<AudioTrack> audioTrack = mAudioTrack.promote();
+    if (audioTrack != 0) {
+        AutoMutex lock(audioTrack->mLock);
+        audioTrack->mProxy->binderDied();
+    }
+}
+
+// =========================================================================
+
+AudioTrack::AudioTrackThread::AudioTrackThread(AudioTrack& receiver, bool bCanCallJava)
+    : Thread(bCanCallJava), mReceiver(receiver), mPaused(true), mPausedInt(false), mPausedNs(0LL),
+      mIgnoreNextPausedInt(false)
+{
+}
+
+AudioTrack::AudioTrackThread::~AudioTrackThread()
+{
+}
+
+bool AudioTrack::AudioTrackThread::threadLoop()
+{
+    {
+        AutoMutex _l(mMyLock);
+        if (mPaused) {
+            mMyCond.wait(mMyLock);
+            // caller will check for exitPending()
+            return true;
+        }
+        if (mIgnoreNextPausedInt) {
+            mIgnoreNextPausedInt = false;
+            mPausedInt = false;
+        }
+        if (mPausedInt) {
+            if (mPausedNs > 0) {
+                (void) mMyCond.waitRelative(mMyLock, mPausedNs);
+            } else {
+                mMyCond.wait(mMyLock);
+            }
+            mPausedInt = false;
+            return true;
+        }
+    }
+    if (exitPending()) {
+        return false;
+    }
+    nsecs_t ns = mReceiver.processAudioBuffer();
+    switch (ns) {
+    case 0:
+        return true;
+    case NS_INACTIVE:
+        pauseInternal();
+        return true;
+    case NS_NEVER:
+        return false;
+    case NS_WHENEVER:
+        // Event driven: call wake() when callback notifications conditions change.
+        ns = INT64_MAX;
+        // fall through
+    default:
+        LOG_ALWAYS_FATAL_IF(ns < 0, "processAudioBuffer() returned %" PRId64, ns);
+        pauseInternal(ns);
+        return true;
+    }
+}
+
+void AudioTrack::AudioTrackThread::requestExit()
+{
+    // must be in this order to avoid a race condition
+    Thread::requestExit();
+    resume();
+}
+
+void AudioTrack::AudioTrackThread::pause()
+{
+    AutoMutex _l(mMyLock);
+    mPaused = true;
+}
+
+void AudioTrack::AudioTrackThread::resume()
+{
+    AutoMutex _l(mMyLock);
+    mIgnoreNextPausedInt = true;
+    if (mPaused || mPausedInt) {
+        mPaused = false;
+        mPausedInt = false;
+        mMyCond.signal();
+    }
+}
+
+void AudioTrack::AudioTrackThread::wake()
+{
+    AutoMutex _l(mMyLock);
+    if (!mPaused) {
+        // wake() might be called while servicing a callback - ignore the next
+        // pause time and call processAudioBuffer.
+        mIgnoreNextPausedInt = true;
+        if (mPausedInt && mPausedNs > 0) {
+            // audio track is active and internally paused with timeout.
+            mPausedInt = false;
+            mMyCond.signal();
+        }
+    }
+}
+
+void AudioTrack::AudioTrackThread::pauseInternal(nsecs_t ns)
+{
+    AutoMutex _l(mMyLock);
+    mPausedInt = true;
+    mPausedNs = ns;
+}
+
+} // namespace android
diff --git a/media/libaudioclient/AudioTrackShared.cpp b/media/libaudioclient/AudioTrackShared.cpp
new file mode 100644
index 0000000..2ce6c63
--- /dev/null
+++ b/media/libaudioclient/AudioTrackShared.cpp
@@ -0,0 +1,1110 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioTrackShared"
+//#define LOG_NDEBUG 0
+
+#include <private/media/AudioTrackShared.h>
+#include <utils/Log.h>
+
+#include <linux/futex.h>
+#include <sys/syscall.h>
+
+namespace android {
+
+// used to clamp a value to size_t.  TODO: move to another file.
+template <typename T>
+size_t clampToSize(T x) {
+    return sizeof(T) > sizeof(size_t) && x > (T) SIZE_MAX ? SIZE_MAX : x < 0 ? 0 : (size_t) x;
+}
+
+// incrementSequence is used to determine the next sequence value
+// for the loop and position sequence counters.  It should return
+// a value between "other" + 1 and "other" + INT32_MAX, the choice of
+// which needs to be the "least recently used" sequence value for "self".
+// In general, this means (new_self) returned is max(self, other) + 1.
+
+static uint32_t incrementSequence(uint32_t self, uint32_t other) {
+    int32_t diff = (int32_t) self - (int32_t) other;
+    if (diff >= 0 && diff < INT32_MAX) {
+        return self + 1; // we're already ahead of other.
+    }
+    return other + 1; // we're behind, so move just ahead of other.
+}
+
+audio_track_cblk_t::audio_track_cblk_t()
+    : mServer(0), mFutex(0), mMinimum(0)
+    , mVolumeLR(GAIN_MINIFLOAT_PACKED_UNITY), mSampleRate(0), mSendLevel(0)
+    , mBufferSizeInFrames(0)
+    , mFlags(0)
+{
+    memset(&u, 0, sizeof(u));
+}
+
+// ---------------------------------------------------------------------------
+
+Proxy::Proxy(audio_track_cblk_t* cblk, void *buffers, size_t frameCount, size_t frameSize,
+        bool isOut, bool clientInServer)
+    : mCblk(cblk), mBuffers(buffers), mFrameCount(frameCount), mFrameSize(frameSize),
+      mFrameCountP2(roundup(frameCount)), mIsOut(isOut), mClientInServer(clientInServer),
+      mIsShutdown(false), mUnreleased(0)
+{
+}
+
+// ---------------------------------------------------------------------------
+
+ClientProxy::ClientProxy(audio_track_cblk_t* cblk, void *buffers, size_t frameCount,
+        size_t frameSize, bool isOut, bool clientInServer)
+    : Proxy(cblk, buffers, frameCount, frameSize, isOut, clientInServer)
+    , mEpoch(0)
+    , mTimestampObserver(&cblk->mExtendedTimestampQueue)
+{
+    setBufferSizeInFrames(frameCount);
+}
+
+const struct timespec ClientProxy::kForever = {INT_MAX /*tv_sec*/, 0 /*tv_nsec*/};
+const struct timespec ClientProxy::kNonBlocking = {0 /*tv_sec*/, 0 /*tv_nsec*/};
+
+#define MEASURE_NS 10000000 // attempt to provide accurate timeouts if requested >= MEASURE_NS
+
+// To facilitate quicker recovery from server failure, this value limits the timeout per each futex
+// wait.  However it does not protect infinite timeouts.  If defined to be zero, there is no limit.
+// FIXME May not be compatible with audio tunneling requirements where timeout should be in the
+// order of minutes.
+#define MAX_SEC    5
+
+uint32_t ClientProxy::setBufferSizeInFrames(uint32_t size)
+{
+    // The minimum should be  greater than zero and less than the size
+    // at which underruns will occur.
+    const uint32_t minimum = 16; // based on AudioMixer::BLOCKSIZE
+    const uint32_t maximum = frameCount();
+    uint32_t clippedSize = size;
+    if (maximum < minimum) {
+        clippedSize = maximum;
+    } else if (clippedSize < minimum) {
+        clippedSize = minimum;
+    } else if (clippedSize > maximum) {
+        clippedSize = maximum;
+    }
+    // for server to read
+    android_atomic_release_store(clippedSize, (int32_t *)&mCblk->mBufferSizeInFrames);
+    // for client to read
+    mBufferSizeInFrames = clippedSize;
+    return clippedSize;
+}
+
+__attribute__((no_sanitize("integer")))
+status_t ClientProxy::obtainBuffer(Buffer* buffer, const struct timespec *requested,
+        struct timespec *elapsed)
+{
+    LOG_ALWAYS_FATAL_IF(buffer == NULL || buffer->mFrameCount == 0);
+    struct timespec total;          // total elapsed time spent waiting
+    total.tv_sec = 0;
+    total.tv_nsec = 0;
+    bool measure = elapsed != NULL; // whether to measure total elapsed time spent waiting
+
+    status_t status;
+    enum {
+        TIMEOUT_ZERO,       // requested == NULL || *requested == 0
+        TIMEOUT_INFINITE,   // *requested == infinity
+        TIMEOUT_FINITE,     // 0 < *requested < infinity
+        TIMEOUT_CONTINUE,   // additional chances after TIMEOUT_FINITE
+    } timeout;
+    if (requested == NULL) {
+        timeout = TIMEOUT_ZERO;
+    } else if (requested->tv_sec == 0 && requested->tv_nsec == 0) {
+        timeout = TIMEOUT_ZERO;
+    } else if (requested->tv_sec == INT_MAX) {
+        timeout = TIMEOUT_INFINITE;
+    } else {
+        timeout = TIMEOUT_FINITE;
+        if (requested->tv_sec > 0 || requested->tv_nsec >= MEASURE_NS) {
+            measure = true;
+        }
+    }
+    struct timespec before;
+    bool beforeIsValid = false;
+    audio_track_cblk_t* cblk = mCblk;
+    bool ignoreInitialPendingInterrupt = true;
+    // check for shared memory corruption
+    if (mIsShutdown) {
+        status = NO_INIT;
+        goto end;
+    }
+    for (;;) {
+        int32_t flags = android_atomic_and(~CBLK_INTERRUPT, &cblk->mFlags);
+        // check for track invalidation by server, or server death detection
+        if (flags & CBLK_INVALID) {
+            ALOGV("Track invalidated");
+            status = DEAD_OBJECT;
+            goto end;
+        }
+        if (flags & CBLK_DISABLED) {
+            ALOGV("Track disabled");
+            status = NOT_ENOUGH_DATA;
+            goto end;
+        }
+        // check for obtainBuffer interrupted by client
+        if (!ignoreInitialPendingInterrupt && (flags & CBLK_INTERRUPT)) {
+            ALOGV("obtainBuffer() interrupted by client");
+            status = -EINTR;
+            goto end;
+        }
+        ignoreInitialPendingInterrupt = false;
+        // compute number of frames available to write (AudioTrack) or read (AudioRecord)
+        int32_t front;
+        int32_t rear;
+        if (mIsOut) {
+            // The barrier following the read of mFront is probably redundant.
+            // We're about to perform a conditional branch based on 'filled',
+            // which will force the processor to observe the read of mFront
+            // prior to allowing data writes starting at mRaw.
+            // However, the processor may support speculative execution,
+            // and be unable to undo speculative writes into shared memory.
+            // The barrier will prevent such speculative execution.
+            front = android_atomic_acquire_load(&cblk->u.mStreaming.mFront);
+            rear = cblk->u.mStreaming.mRear;
+        } else {
+            // On the other hand, this barrier is required.
+            rear = android_atomic_acquire_load(&cblk->u.mStreaming.mRear);
+            front = cblk->u.mStreaming.mFront;
+        }
+        // write to rear, read from front
+        ssize_t filled = rear - front;
+        // pipe should not be overfull
+        if (!(0 <= filled && (size_t) filled <= mFrameCount)) {
+            if (mIsOut) {
+                ALOGE("Shared memory control block is corrupt (filled=%zd, mFrameCount=%zu); "
+                        "shutting down", filled, mFrameCount);
+                mIsShutdown = true;
+                status = NO_INIT;
+                goto end;
+            }
+            // for input, sync up on overrun
+            filled = 0;
+            cblk->u.mStreaming.mFront = rear;
+            (void) android_atomic_or(CBLK_OVERRUN, &cblk->mFlags);
+        }
+        // Don't allow filling pipe beyond the user settable size.
+        // The calculation for avail can go negative if the buffer size
+        // is suddenly dropped below the amount already in the buffer.
+        // So use a signed calculation to prevent a numeric overflow abort.
+        ssize_t adjustableSize = (ssize_t) getBufferSizeInFrames();
+        ssize_t avail =  (mIsOut) ? adjustableSize - filled : filled;
+        if (avail < 0) {
+            avail = 0;
+        } else if (avail > 0) {
+            // 'avail' may be non-contiguous, so return only the first contiguous chunk
+            size_t part1;
+            if (mIsOut) {
+                rear &= mFrameCountP2 - 1;
+                part1 = mFrameCountP2 - rear;
+            } else {
+                front &= mFrameCountP2 - 1;
+                part1 = mFrameCountP2 - front;
+            }
+            if (part1 > (size_t)avail) {
+                part1 = avail;
+            }
+            if (part1 > buffer->mFrameCount) {
+                part1 = buffer->mFrameCount;
+            }
+            buffer->mFrameCount = part1;
+            buffer->mRaw = part1 > 0 ?
+                    &((char *) mBuffers)[(mIsOut ? rear : front) * mFrameSize] : NULL;
+            buffer->mNonContig = avail - part1;
+            mUnreleased = part1;
+            status = NO_ERROR;
+            break;
+        }
+        struct timespec remaining;
+        const struct timespec *ts;
+        switch (timeout) {
+        case TIMEOUT_ZERO:
+            status = WOULD_BLOCK;
+            goto end;
+        case TIMEOUT_INFINITE:
+            ts = NULL;
+            break;
+        case TIMEOUT_FINITE:
+            timeout = TIMEOUT_CONTINUE;
+            if (MAX_SEC == 0) {
+                ts = requested;
+                break;
+            }
+            // fall through
+        case TIMEOUT_CONTINUE:
+            // FIXME we do not retry if requested < 10ms? needs documentation on this state machine
+            if (!measure || requested->tv_sec < total.tv_sec ||
+                    (requested->tv_sec == total.tv_sec && requested->tv_nsec <= total.tv_nsec)) {
+                status = TIMED_OUT;
+                goto end;
+            }
+            remaining.tv_sec = requested->tv_sec - total.tv_sec;
+            if ((remaining.tv_nsec = requested->tv_nsec - total.tv_nsec) < 0) {
+                remaining.tv_nsec += 1000000000;
+                remaining.tv_sec++;
+            }
+            if (0 < MAX_SEC && MAX_SEC < remaining.tv_sec) {
+                remaining.tv_sec = MAX_SEC;
+                remaining.tv_nsec = 0;
+            }
+            ts = &remaining;
+            break;
+        default:
+            LOG_ALWAYS_FATAL("obtainBuffer() timeout=%d", timeout);
+            ts = NULL;
+            break;
+        }
+        int32_t old = android_atomic_and(~CBLK_FUTEX_WAKE, &cblk->mFutex);
+        if (!(old & CBLK_FUTEX_WAKE)) {
+            if (measure && !beforeIsValid) {
+                clock_gettime(CLOCK_MONOTONIC, &before);
+                beforeIsValid = true;
+            }
+            errno = 0;
+            (void) syscall(__NR_futex, &cblk->mFutex,
+                    mClientInServer ? FUTEX_WAIT_PRIVATE : FUTEX_WAIT, old & ~CBLK_FUTEX_WAKE, ts);
+            status_t error = errno; // clock_gettime can affect errno
+            // update total elapsed time spent waiting
+            if (measure) {
+                struct timespec after;
+                clock_gettime(CLOCK_MONOTONIC, &after);
+                total.tv_sec += after.tv_sec - before.tv_sec;
+                long deltaNs = after.tv_nsec - before.tv_nsec;
+                if (deltaNs < 0) {
+                    deltaNs += 1000000000;
+                    total.tv_sec--;
+                }
+                if ((total.tv_nsec += deltaNs) >= 1000000000) {
+                    total.tv_nsec -= 1000000000;
+                    total.tv_sec++;
+                }
+                before = after;
+                beforeIsValid = true;
+            }
+            switch (error) {
+            case 0:            // normal wakeup by server, or by binderDied()
+            case EWOULDBLOCK:  // benign race condition with server
+            case EINTR:        // wait was interrupted by signal or other spurious wakeup
+            case ETIMEDOUT:    // time-out expired
+                // FIXME these error/non-0 status are being dropped
+                break;
+            default:
+                status = error;
+                ALOGE("%s unexpected error %s", __func__, strerror(status));
+                goto end;
+            }
+        }
+    }
+
+end:
+    if (status != NO_ERROR) {
+        buffer->mFrameCount = 0;
+        buffer->mRaw = NULL;
+        buffer->mNonContig = 0;
+        mUnreleased = 0;
+    }
+    if (elapsed != NULL) {
+        *elapsed = total;
+    }
+    if (requested == NULL) {
+        requested = &kNonBlocking;
+    }
+    if (measure) {
+        ALOGV("requested %ld.%03ld elapsed %ld.%03ld",
+              requested->tv_sec, requested->tv_nsec / 1000000,
+              total.tv_sec, total.tv_nsec / 1000000);
+    }
+    return status;
+}
+
+__attribute__((no_sanitize("integer")))
+void ClientProxy::releaseBuffer(Buffer* buffer)
+{
+    LOG_ALWAYS_FATAL_IF(buffer == NULL);
+    size_t stepCount = buffer->mFrameCount;
+    if (stepCount == 0 || mIsShutdown) {
+        // prevent accidental re-use of buffer
+        buffer->mFrameCount = 0;
+        buffer->mRaw = NULL;
+        buffer->mNonContig = 0;
+        return;
+    }
+    LOG_ALWAYS_FATAL_IF(!(stepCount <= mUnreleased && mUnreleased <= mFrameCount));
+    mUnreleased -= stepCount;
+    audio_track_cblk_t* cblk = mCblk;
+    // Both of these barriers are required
+    if (mIsOut) {
+        int32_t rear = cblk->u.mStreaming.mRear;
+        android_atomic_release_store(stepCount + rear, &cblk->u.mStreaming.mRear);
+    } else {
+        int32_t front = cblk->u.mStreaming.mFront;
+        android_atomic_release_store(stepCount + front, &cblk->u.mStreaming.mFront);
+    }
+}
+
+void ClientProxy::binderDied()
+{
+    audio_track_cblk_t* cblk = mCblk;
+    if (!(android_atomic_or(CBLK_INVALID, &cblk->mFlags) & CBLK_INVALID)) {
+        android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
+        // it seems that a FUTEX_WAKE_PRIVATE will not wake a FUTEX_WAIT, even within same process
+        (void) syscall(__NR_futex, &cblk->mFutex, mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE,
+                1);
+    }
+}
+
+void ClientProxy::interrupt()
+{
+    audio_track_cblk_t* cblk = mCblk;
+    if (!(android_atomic_or(CBLK_INTERRUPT, &cblk->mFlags) & CBLK_INTERRUPT)) {
+        android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
+        (void) syscall(__NR_futex, &cblk->mFutex, mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE,
+                1);
+    }
+}
+
+__attribute__((no_sanitize("integer")))
+size_t ClientProxy::getMisalignment()
+{
+    audio_track_cblk_t* cblk = mCblk;
+    return (mFrameCountP2 - (mIsOut ? cblk->u.mStreaming.mRear : cblk->u.mStreaming.mFront)) &
+            (mFrameCountP2 - 1);
+}
+
+// ---------------------------------------------------------------------------
+
+void AudioTrackClientProxy::flush()
+{
+    // This works for mFrameCountP2 <= 2^30
+    size_t increment = mFrameCountP2 << 1;
+    size_t mask = increment - 1;
+    audio_track_cblk_t* cblk = mCblk;
+    // mFlush is 32 bits concatenated as [ flush_counter ] [ newfront_offset ]
+    // Should newFlush = cblk->u.mStreaming.mRear?  Only problem is
+    // if you want to flush twice to the same rear location after a 32 bit wrap.
+    int32_t newFlush = (cblk->u.mStreaming.mRear & mask) |
+                        ((cblk->u.mStreaming.mFlush & ~mask) + increment);
+    android_atomic_release_store(newFlush, &cblk->u.mStreaming.mFlush);
+}
+
+bool AudioTrackClientProxy::clearStreamEndDone() {
+    return (android_atomic_and(~CBLK_STREAM_END_DONE, &mCblk->mFlags) & CBLK_STREAM_END_DONE) != 0;
+}
+
+bool AudioTrackClientProxy::getStreamEndDone() const {
+    return (mCblk->mFlags & CBLK_STREAM_END_DONE) != 0;
+}
+
+status_t AudioTrackClientProxy::waitStreamEndDone(const struct timespec *requested)
+{
+    struct timespec total;          // total elapsed time spent waiting
+    total.tv_sec = 0;
+    total.tv_nsec = 0;
+    audio_track_cblk_t* cblk = mCblk;
+    status_t status;
+    enum {
+        TIMEOUT_ZERO,       // requested == NULL || *requested == 0
+        TIMEOUT_INFINITE,   // *requested == infinity
+        TIMEOUT_FINITE,     // 0 < *requested < infinity
+        TIMEOUT_CONTINUE,   // additional chances after TIMEOUT_FINITE
+    } timeout;
+    if (requested == NULL) {
+        timeout = TIMEOUT_ZERO;
+    } else if (requested->tv_sec == 0 && requested->tv_nsec == 0) {
+        timeout = TIMEOUT_ZERO;
+    } else if (requested->tv_sec == INT_MAX) {
+        timeout = TIMEOUT_INFINITE;
+    } else {
+        timeout = TIMEOUT_FINITE;
+    }
+    for (;;) {
+        int32_t flags = android_atomic_and(~(CBLK_INTERRUPT|CBLK_STREAM_END_DONE), &cblk->mFlags);
+        // check for track invalidation by server, or server death detection
+        if (flags & CBLK_INVALID) {
+            ALOGV("Track invalidated");
+            status = DEAD_OBJECT;
+            goto end;
+        }
+        // a track is not supposed to underrun at this stage but consider it done
+        if (flags & (CBLK_STREAM_END_DONE | CBLK_DISABLED)) {
+            ALOGV("stream end received");
+            status = NO_ERROR;
+            goto end;
+        }
+        // check for obtainBuffer interrupted by client
+        if (flags & CBLK_INTERRUPT) {
+            ALOGV("waitStreamEndDone() interrupted by client");
+            status = -EINTR;
+            goto end;
+        }
+        struct timespec remaining;
+        const struct timespec *ts;
+        switch (timeout) {
+        case TIMEOUT_ZERO:
+            status = WOULD_BLOCK;
+            goto end;
+        case TIMEOUT_INFINITE:
+            ts = NULL;
+            break;
+        case TIMEOUT_FINITE:
+            timeout = TIMEOUT_CONTINUE;
+            if (MAX_SEC == 0) {
+                ts = requested;
+                break;
+            }
+            // fall through
+        case TIMEOUT_CONTINUE:
+            // FIXME we do not retry if requested < 10ms? needs documentation on this state machine
+            if (requested->tv_sec < total.tv_sec ||
+                    (requested->tv_sec == total.tv_sec && requested->tv_nsec <= total.tv_nsec)) {
+                status = TIMED_OUT;
+                goto end;
+            }
+            remaining.tv_sec = requested->tv_sec - total.tv_sec;
+            if ((remaining.tv_nsec = requested->tv_nsec - total.tv_nsec) < 0) {
+                remaining.tv_nsec += 1000000000;
+                remaining.tv_sec++;
+            }
+            if (0 < MAX_SEC && MAX_SEC < remaining.tv_sec) {
+                remaining.tv_sec = MAX_SEC;
+                remaining.tv_nsec = 0;
+            }
+            ts = &remaining;
+            break;
+        default:
+            LOG_ALWAYS_FATAL("waitStreamEndDone() timeout=%d", timeout);
+            ts = NULL;
+            break;
+        }
+        int32_t old = android_atomic_and(~CBLK_FUTEX_WAKE, &cblk->mFutex);
+        if (!(old & CBLK_FUTEX_WAKE)) {
+            errno = 0;
+            (void) syscall(__NR_futex, &cblk->mFutex,
+                    mClientInServer ? FUTEX_WAIT_PRIVATE : FUTEX_WAIT, old & ~CBLK_FUTEX_WAKE, ts);
+            switch (errno) {
+            case 0:            // normal wakeup by server, or by binderDied()
+            case EWOULDBLOCK:  // benign race condition with server
+            case EINTR:        // wait was interrupted by signal or other spurious wakeup
+            case ETIMEDOUT:    // time-out expired
+                break;
+            default:
+                status = errno;
+                ALOGE("%s unexpected error %s", __func__, strerror(status));
+                goto end;
+            }
+        }
+    }
+
+end:
+    if (requested == NULL) {
+        requested = &kNonBlocking;
+    }
+    return status;
+}
+
+// ---------------------------------------------------------------------------
+
+StaticAudioTrackClientProxy::StaticAudioTrackClientProxy(audio_track_cblk_t* cblk, void *buffers,
+        size_t frameCount, size_t frameSize)
+    : AudioTrackClientProxy(cblk, buffers, frameCount, frameSize),
+      mMutator(&cblk->u.mStatic.mSingleStateQueue),
+      mPosLoopObserver(&cblk->u.mStatic.mPosLoopQueue)
+{
+    memset(&mState, 0, sizeof(mState));
+    memset(&mPosLoop, 0, sizeof(mPosLoop));
+}
+
+void StaticAudioTrackClientProxy::flush()
+{
+    LOG_ALWAYS_FATAL("static flush");
+}
+
+void StaticAudioTrackClientProxy::setLoop(size_t loopStart, size_t loopEnd, int loopCount)
+{
+    // This can only happen on a 64-bit client
+    if (loopStart > UINT32_MAX || loopEnd > UINT32_MAX) {
+        // FIXME Should return an error status
+        return;
+    }
+    mState.mLoopStart = (uint32_t) loopStart;
+    mState.mLoopEnd = (uint32_t) loopEnd;
+    mState.mLoopCount = loopCount;
+    mState.mLoopSequence = incrementSequence(mState.mLoopSequence, mState.mPositionSequence);
+    // set patch-up variables until the mState is acknowledged by the ServerProxy.
+    // observed buffer position and loop count will freeze until then to give the
+    // illusion of a synchronous change.
+    getBufferPositionAndLoopCount(NULL, NULL);
+    // preserve behavior to restart at mState.mLoopStart if position exceeds mState.mLoopEnd.
+    if (mState.mLoopCount != 0 && mPosLoop.mBufferPosition >= mState.mLoopEnd) {
+        mPosLoop.mBufferPosition = mState.mLoopStart;
+    }
+    mPosLoop.mLoopCount = mState.mLoopCount;
+    (void) mMutator.push(mState);
+}
+
+void StaticAudioTrackClientProxy::setBufferPosition(size_t position)
+{
+    // This can only happen on a 64-bit client
+    if (position > UINT32_MAX) {
+        // FIXME Should return an error status
+        return;
+    }
+    mState.mPosition = (uint32_t) position;
+    mState.mPositionSequence = incrementSequence(mState.mPositionSequence, mState.mLoopSequence);
+    // set patch-up variables until the mState is acknowledged by the ServerProxy.
+    // observed buffer position and loop count will freeze until then to give the
+    // illusion of a synchronous change.
+    if (mState.mLoopCount > 0) {  // only check if loop count is changing
+        getBufferPositionAndLoopCount(NULL, NULL); // get last position
+    }
+    mPosLoop.mBufferPosition = position;
+    if (position >= mState.mLoopEnd) {
+        // no ongoing loop is possible if position is greater than loopEnd.
+        mPosLoop.mLoopCount = 0;
+    }
+    (void) mMutator.push(mState);
+}
+
+void StaticAudioTrackClientProxy::setBufferPositionAndLoop(size_t position, size_t loopStart,
+        size_t loopEnd, int loopCount)
+{
+    setLoop(loopStart, loopEnd, loopCount);
+    setBufferPosition(position);
+}
+
+size_t StaticAudioTrackClientProxy::getBufferPosition()
+{
+    getBufferPositionAndLoopCount(NULL, NULL);
+    return mPosLoop.mBufferPosition;
+}
+
+void StaticAudioTrackClientProxy::getBufferPositionAndLoopCount(
+        size_t *position, int *loopCount)
+{
+    if (mMutator.ack() == StaticAudioTrackSingleStateQueue::SSQ_DONE) {
+         if (mPosLoopObserver.poll(mPosLoop)) {
+             ; // a valid mPosLoop should be available if ackDone is true.
+         }
+    }
+    if (position != NULL) {
+        *position = mPosLoop.mBufferPosition;
+    }
+    if (loopCount != NULL) {
+        *loopCount = mPosLoop.mLoopCount;
+    }
+}
+
+// ---------------------------------------------------------------------------
+
+ServerProxy::ServerProxy(audio_track_cblk_t* cblk, void *buffers, size_t frameCount,
+        size_t frameSize, bool isOut, bool clientInServer)
+    : Proxy(cblk, buffers, frameCount, frameSize, isOut, clientInServer),
+      mAvailToClient(0), mFlush(0), mReleased(0), mFlushed(0)
+    , mTimestampMutator(&cblk->mExtendedTimestampQueue)
+{
+    cblk->mBufferSizeInFrames = frameCount;
+}
+
+__attribute__((no_sanitize("integer")))
+void ServerProxy::flushBufferIfNeeded()
+{
+    audio_track_cblk_t* cblk = mCblk;
+    // The acquire_load is not really required. But since the write is a release_store in the
+    // client, using acquire_load here makes it easier for people to maintain the code,
+    // and the logic for communicating ipc variables seems somewhat standard,
+    // and there really isn't much penalty for 4 or 8 byte atomics.
+    int32_t flush = android_atomic_acquire_load(&cblk->u.mStreaming.mFlush);
+    if (flush != mFlush) {
+        ALOGV("ServerProxy::flushBufferIfNeeded() mStreaming.mFlush = 0x%x, mFlush = 0x%0x",
+                flush, mFlush);
+        int32_t rear = android_atomic_acquire_load(&cblk->u.mStreaming.mRear);
+        int32_t front = cblk->u.mStreaming.mFront;
+
+        // effectively obtain then release whatever is in the buffer
+        const size_t overflowBit = mFrameCountP2 << 1;
+        const size_t mask = overflowBit - 1;
+        int32_t newFront = (front & ~mask) | (flush & mask);
+        ssize_t filled = rear - newFront;
+        if (filled >= (ssize_t)overflowBit) {
+            // front and rear offsets span the overflow bit of the p2 mask
+            // so rebasing newFront on the front offset is off by the overflow bit.
+            // adjust newFront to match rear offset.
+            ALOGV("flush wrap: filled %zx >= overflowBit %zx", filled, overflowBit);
+            newFront += overflowBit;
+            filled -= overflowBit;
+        }
+        // Rather than shutting down on a corrupt flush, just treat it as a full flush
+        if (!(0 <= filled && (size_t) filled <= mFrameCount)) {
+            ALOGE("mFlush %#x -> %#x, front %#x, rear %#x, mask %#x, newFront %#x, "
+                    "filled %zd=%#x",
+                    mFlush, flush, front, rear,
+                    (unsigned)mask, newFront, filled, (unsigned)filled);
+            newFront = rear;
+        }
+        mFlush = flush;
+        android_atomic_release_store(newFront, &cblk->u.mStreaming.mFront);
+        // There is no danger from a false positive, so err on the side of caution
+        if (true /*front != newFront*/) {
+            int32_t old = android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
+            if (!(old & CBLK_FUTEX_WAKE)) {
+                (void) syscall(__NR_futex, &cblk->mFutex,
+                        mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE, 1);
+            }
+        }
+        mFlushed += (newFront - front) & mask;
+    }
+}
+
+__attribute__((no_sanitize("integer")))
+status_t ServerProxy::obtainBuffer(Buffer* buffer, bool ackFlush)
+{
+    LOG_ALWAYS_FATAL_IF(buffer == NULL || buffer->mFrameCount == 0);
+    if (mIsShutdown) {
+        goto no_init;
+    }
+    {
+    audio_track_cblk_t* cblk = mCblk;
+    // compute number of frames available to write (AudioTrack) or read (AudioRecord),
+    // or use previous cached value from framesReady(), with added barrier if it omits.
+    int32_t front;
+    int32_t rear;
+    // See notes on barriers at ClientProxy::obtainBuffer()
+    if (mIsOut) {
+        flushBufferIfNeeded(); // might modify mFront
+        rear = android_atomic_acquire_load(&cblk->u.mStreaming.mRear);
+        front = cblk->u.mStreaming.mFront;
+    } else {
+        front = android_atomic_acquire_load(&cblk->u.mStreaming.mFront);
+        rear = cblk->u.mStreaming.mRear;
+    }
+    ssize_t filled = rear - front;
+    // pipe should not already be overfull
+    if (!(0 <= filled && (size_t) filled <= mFrameCount)) {
+        ALOGE("Shared memory control block is corrupt (filled=%zd, mFrameCount=%zu); shutting down",
+                filled, mFrameCount);
+        mIsShutdown = true;
+    }
+    if (mIsShutdown) {
+        goto no_init;
+    }
+    // don't allow filling pipe beyond the nominal size
+    size_t availToServer;
+    if (mIsOut) {
+        availToServer = filled;
+        mAvailToClient = mFrameCount - filled;
+    } else {
+        availToServer = mFrameCount - filled;
+        mAvailToClient = filled;
+    }
+    // 'availToServer' may be non-contiguous, so return only the first contiguous chunk
+    size_t part1;
+    if (mIsOut) {
+        front &= mFrameCountP2 - 1;
+        part1 = mFrameCountP2 - front;
+    } else {
+        rear &= mFrameCountP2 - 1;
+        part1 = mFrameCountP2 - rear;
+    }
+    if (part1 > availToServer) {
+        part1 = availToServer;
+    }
+    size_t ask = buffer->mFrameCount;
+    if (part1 > ask) {
+        part1 = ask;
+    }
+    // is assignment redundant in some cases?
+    buffer->mFrameCount = part1;
+    buffer->mRaw = part1 > 0 ?
+            &((char *) mBuffers)[(mIsOut ? front : rear) * mFrameSize] : NULL;
+    buffer->mNonContig = availToServer - part1;
+    // After flush(), allow releaseBuffer() on a previously obtained buffer;
+    // see "Acknowledge any pending flush()" in audioflinger/Tracks.cpp.
+    if (!ackFlush) {
+        mUnreleased = part1;
+    }
+    return part1 > 0 ? NO_ERROR : WOULD_BLOCK;
+    }
+no_init:
+    buffer->mFrameCount = 0;
+    buffer->mRaw = NULL;
+    buffer->mNonContig = 0;
+    mUnreleased = 0;
+    return NO_INIT;
+}
+
+__attribute__((no_sanitize("integer")))
+void ServerProxy::releaseBuffer(Buffer* buffer)
+{
+    LOG_ALWAYS_FATAL_IF(buffer == NULL);
+    size_t stepCount = buffer->mFrameCount;
+    if (stepCount == 0 || mIsShutdown) {
+        // prevent accidental re-use of buffer
+        buffer->mFrameCount = 0;
+        buffer->mRaw = NULL;
+        buffer->mNonContig = 0;
+        return;
+    }
+    LOG_ALWAYS_FATAL_IF(!(stepCount <= mUnreleased && mUnreleased <= mFrameCount));
+    mUnreleased -= stepCount;
+    audio_track_cblk_t* cblk = mCblk;
+    if (mIsOut) {
+        int32_t front = cblk->u.mStreaming.mFront;
+        android_atomic_release_store(stepCount + front, &cblk->u.mStreaming.mFront);
+    } else {
+        int32_t rear = cblk->u.mStreaming.mRear;
+        android_atomic_release_store(stepCount + rear, &cblk->u.mStreaming.mRear);
+    }
+
+    cblk->mServer += stepCount;
+    mReleased += stepCount;
+
+    size_t half = mFrameCount / 2;
+    if (half == 0) {
+        half = 1;
+    }
+    size_t minimum = (size_t) cblk->mMinimum;
+    if (minimum == 0) {
+        minimum = mIsOut ? half : 1;
+    } else if (minimum > half) {
+        minimum = half;
+    }
+    // FIXME AudioRecord wakeup needs to be optimized; it currently wakes up client every time
+    if (!mIsOut || (mAvailToClient + stepCount >= minimum)) {
+        ALOGV("mAvailToClient=%zu stepCount=%zu minimum=%zu", mAvailToClient, stepCount, minimum);
+        int32_t old = android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
+        if (!(old & CBLK_FUTEX_WAKE)) {
+            (void) syscall(__NR_futex, &cblk->mFutex,
+                    mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE, 1);
+        }
+    }
+
+    buffer->mFrameCount = 0;
+    buffer->mRaw = NULL;
+    buffer->mNonContig = 0;
+}
+
+// ---------------------------------------------------------------------------
+
+__attribute__((no_sanitize("integer")))
+size_t AudioTrackServerProxy::framesReady()
+{
+    LOG_ALWAYS_FATAL_IF(!mIsOut);
+
+    if (mIsShutdown) {
+        return 0;
+    }
+    audio_track_cblk_t* cblk = mCblk;
+
+    int32_t flush = cblk->u.mStreaming.mFlush;
+    if (flush != mFlush) {
+        // FIXME should return an accurate value, but over-estimate is better than under-estimate
+        return mFrameCount;
+    }
+    // the acquire might not be necessary since not doing a subsequent read
+    int32_t rear = android_atomic_acquire_load(&cblk->u.mStreaming.mRear);
+    ssize_t filled = rear - cblk->u.mStreaming.mFront;
+    // pipe should not already be overfull
+    if (!(0 <= filled && (size_t) filled <= mFrameCount)) {
+        ALOGE("Shared memory control block is corrupt (filled=%zd, mFrameCount=%zu); shutting down",
+                filled, mFrameCount);
+        mIsShutdown = true;
+        return 0;
+    }
+    //  cache this value for later use by obtainBuffer(), with added barrier
+    //  and racy if called by normal mixer thread
+    // ignores flush(), so framesReady() may report a larger mFrameCount than obtainBuffer()
+    return filled;
+}
+
+bool  AudioTrackServerProxy::setStreamEndDone() {
+    audio_track_cblk_t* cblk = mCblk;
+    bool old =
+            (android_atomic_or(CBLK_STREAM_END_DONE, &cblk->mFlags) & CBLK_STREAM_END_DONE) != 0;
+    if (!old) {
+        (void) syscall(__NR_futex, &cblk->mFutex, mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE,
+                1);
+    }
+    return old;
+}
+
+void AudioTrackServerProxy::tallyUnderrunFrames(uint32_t frameCount)
+{
+    audio_track_cblk_t* cblk = mCblk;
+    if (frameCount > 0) {
+        cblk->u.mStreaming.mUnderrunFrames += frameCount;
+
+        if (!mUnderrunning) { // start of underrun?
+            mUnderrunCount++;
+            cblk->u.mStreaming.mUnderrunCount = mUnderrunCount;
+            mUnderrunning = true;
+            ALOGV("tallyUnderrunFrames(%3u) at uf = %u, bump mUnderrunCount = %u",
+                frameCount, cblk->u.mStreaming.mUnderrunFrames, mUnderrunCount);
+        }
+
+        // FIXME also wake futex so that underrun is noticed more quickly
+        (void) android_atomic_or(CBLK_UNDERRUN, &cblk->mFlags);
+    } else {
+        ALOGV_IF(mUnderrunning,
+            "tallyUnderrunFrames(%3u) at uf = %u, underrun finished",
+            frameCount, cblk->u.mStreaming.mUnderrunFrames);
+        mUnderrunning = false; // so we can detect the next edge
+    }
+}
+
+AudioPlaybackRate AudioTrackServerProxy::getPlaybackRate()
+{   // do not call from multiple threads without holding lock
+    mPlaybackRateObserver.poll(mPlaybackRate);
+    return mPlaybackRate;
+}
+
+// ---------------------------------------------------------------------------
+
+StaticAudioTrackServerProxy::StaticAudioTrackServerProxy(audio_track_cblk_t* cblk, void *buffers,
+        size_t frameCount, size_t frameSize)
+    : AudioTrackServerProxy(cblk, buffers, frameCount, frameSize),
+      mObserver(&cblk->u.mStatic.mSingleStateQueue),
+      mPosLoopMutator(&cblk->u.mStatic.mPosLoopQueue),
+      mFramesReadySafe(frameCount), mFramesReady(frameCount),
+      mFramesReadyIsCalledByMultipleThreads(false)
+{
+    memset(&mState, 0, sizeof(mState));
+}
+
+void StaticAudioTrackServerProxy::framesReadyIsCalledByMultipleThreads()
+{
+    mFramesReadyIsCalledByMultipleThreads = true;
+}
+
+size_t StaticAudioTrackServerProxy::framesReady()
+{
+    // Can't call pollPosition() from multiple threads.
+    if (!mFramesReadyIsCalledByMultipleThreads) {
+        (void) pollPosition();
+    }
+    return mFramesReadySafe;
+}
+
+status_t StaticAudioTrackServerProxy::updateStateWithLoop(
+        StaticAudioTrackState *localState, const StaticAudioTrackState &update) const
+{
+    if (localState->mLoopSequence != update.mLoopSequence) {
+        bool valid = false;
+        const size_t loopStart = update.mLoopStart;
+        const size_t loopEnd = update.mLoopEnd;
+        size_t position = localState->mPosition;
+        if (update.mLoopCount == 0) {
+            valid = true;
+        } else if (update.mLoopCount >= -1) {
+            if (loopStart < loopEnd && loopEnd <= mFrameCount &&
+                    loopEnd - loopStart >= MIN_LOOP) {
+                // If the current position is greater than the end of the loop
+                // we "wrap" to the loop start. This might cause an audible pop.
+                if (position >= loopEnd) {
+                    position = loopStart;
+                }
+                valid = true;
+            }
+        }
+        if (!valid || position > mFrameCount) {
+            return NO_INIT;
+        }
+        localState->mPosition = position;
+        localState->mLoopCount = update.mLoopCount;
+        localState->mLoopEnd = loopEnd;
+        localState->mLoopStart = loopStart;
+        localState->mLoopSequence = update.mLoopSequence;
+    }
+    return OK;
+}
+
+status_t StaticAudioTrackServerProxy::updateStateWithPosition(
+        StaticAudioTrackState *localState, const StaticAudioTrackState &update) const
+{
+    if (localState->mPositionSequence != update.mPositionSequence) {
+        if (update.mPosition > mFrameCount) {
+            return NO_INIT;
+        } else if (localState->mLoopCount != 0 && update.mPosition >= localState->mLoopEnd) {
+            localState->mLoopCount = 0; // disable loop count if position is beyond loop end.
+        }
+        localState->mPosition = update.mPosition;
+        localState->mPositionSequence = update.mPositionSequence;
+    }
+    return OK;
+}
+
+ssize_t StaticAudioTrackServerProxy::pollPosition()
+{
+    StaticAudioTrackState state;
+    if (mObserver.poll(state)) {
+        StaticAudioTrackState trystate = mState;
+        bool result;
+        const int32_t diffSeq = (int32_t) state.mLoopSequence - (int32_t) state.mPositionSequence;
+
+        if (diffSeq < 0) {
+            result = updateStateWithLoop(&trystate, state) == OK &&
+                    updateStateWithPosition(&trystate, state) == OK;
+        } else {
+            result = updateStateWithPosition(&trystate, state) == OK &&
+                    updateStateWithLoop(&trystate, state) == OK;
+        }
+        if (!result) {
+            mObserver.done();
+            // caution: no update occurs so server state will be inconsistent with client state.
+            ALOGE("%s client pushed an invalid state, shutting down", __func__);
+            mIsShutdown = true;
+            return (ssize_t) NO_INIT;
+        }
+        mState = trystate;
+        if (mState.mLoopCount == -1) {
+            mFramesReady = INT64_MAX;
+        } else if (mState.mLoopCount == 0) {
+            mFramesReady = mFrameCount - mState.mPosition;
+        } else if (mState.mLoopCount > 0) {
+            // TODO: Later consider fixing overflow, but does not seem needed now
+            // as will not overflow if loopStart and loopEnd are Java "ints".
+            mFramesReady = int64_t(mState.mLoopCount) * (mState.mLoopEnd - mState.mLoopStart)
+                    + mFrameCount - mState.mPosition;
+        }
+        mFramesReadySafe = clampToSize(mFramesReady);
+        // This may overflow, but client is not supposed to rely on it
+        StaticAudioTrackPosLoop posLoop;
+
+        posLoop.mLoopCount = (int32_t) mState.mLoopCount;
+        posLoop.mBufferPosition = (uint32_t) mState.mPosition;
+        mPosLoopMutator.push(posLoop);
+        mObserver.done(); // safe to read mStatic variables.
+    }
+    return (ssize_t) mState.mPosition;
+}
+
+status_t StaticAudioTrackServerProxy::obtainBuffer(Buffer* buffer, bool ackFlush)
+{
+    if (mIsShutdown) {
+        buffer->mFrameCount = 0;
+        buffer->mRaw = NULL;
+        buffer->mNonContig = 0;
+        mUnreleased = 0;
+        return NO_INIT;
+    }
+    ssize_t positionOrStatus = pollPosition();
+    if (positionOrStatus < 0) {
+        buffer->mFrameCount = 0;
+        buffer->mRaw = NULL;
+        buffer->mNonContig = 0;
+        mUnreleased = 0;
+        return (status_t) positionOrStatus;
+    }
+    size_t position = (size_t) positionOrStatus;
+    size_t end = mState.mLoopCount != 0 ? mState.mLoopEnd : mFrameCount;
+    size_t avail;
+    if (position < end) {
+        avail = end - position;
+        size_t wanted = buffer->mFrameCount;
+        if (avail < wanted) {
+            buffer->mFrameCount = avail;
+        } else {
+            avail = wanted;
+        }
+        buffer->mRaw = &((char *) mBuffers)[position * mFrameSize];
+    } else {
+        avail = 0;
+        buffer->mFrameCount = 0;
+        buffer->mRaw = NULL;
+    }
+    // As mFramesReady is the total remaining frames in the static audio track,
+    // it is always larger or equal to avail.
+    LOG_ALWAYS_FATAL_IF(mFramesReady < (int64_t) avail);
+    buffer->mNonContig = mFramesReady == INT64_MAX ? SIZE_MAX : clampToSize(mFramesReady - avail);
+    if (!ackFlush) {
+        mUnreleased = avail;
+    }
+    return NO_ERROR;
+}
+
+void StaticAudioTrackServerProxy::releaseBuffer(Buffer* buffer)
+{
+    size_t stepCount = buffer->mFrameCount;
+    LOG_ALWAYS_FATAL_IF(!((int64_t) stepCount <= mFramesReady));
+    LOG_ALWAYS_FATAL_IF(!(stepCount <= mUnreleased));
+    if (stepCount == 0) {
+        // prevent accidental re-use of buffer
+        buffer->mRaw = NULL;
+        buffer->mNonContig = 0;
+        return;
+    }
+    mUnreleased -= stepCount;
+    audio_track_cblk_t* cblk = mCblk;
+    size_t position = mState.mPosition;
+    size_t newPosition = position + stepCount;
+    int32_t setFlags = 0;
+    if (!(position <= newPosition && newPosition <= mFrameCount)) {
+        ALOGW("%s newPosition %zu outside [%zu, %zu]", __func__, newPosition, position,
+                mFrameCount);
+        newPosition = mFrameCount;
+    } else if (mState.mLoopCount != 0 && newPosition == mState.mLoopEnd) {
+        newPosition = mState.mLoopStart;
+        if (mState.mLoopCount == -1 || --mState.mLoopCount != 0) {
+            setFlags = CBLK_LOOP_CYCLE;
+        } else {
+            setFlags = CBLK_LOOP_FINAL;
+        }
+    }
+    if (newPosition == mFrameCount) {
+        setFlags |= CBLK_BUFFER_END;
+    }
+    mState.mPosition = newPosition;
+    if (mFramesReady != INT64_MAX) {
+        mFramesReady -= stepCount;
+    }
+    mFramesReadySafe = clampToSize(mFramesReady);
+
+    cblk->mServer += stepCount;
+    mReleased += stepCount;
+
+    // This may overflow, but client is not supposed to rely on it
+    StaticAudioTrackPosLoop posLoop;
+    posLoop.mBufferPosition = mState.mPosition;
+    posLoop.mLoopCount = mState.mLoopCount;
+    mPosLoopMutator.push(posLoop);
+    if (setFlags != 0) {
+        (void) android_atomic_or(setFlags, &cblk->mFlags);
+        // this would be a good place to wake a futex
+    }
+
+    buffer->mFrameCount = 0;
+    buffer->mRaw = NULL;
+    buffer->mNonContig = 0;
+}
+
+void StaticAudioTrackServerProxy::tallyUnderrunFrames(uint32_t frameCount)
+{
+    // Unlike AudioTrackServerProxy::tallyUnderrunFrames() used for streaming tracks,
+    // we don't have a location to count underrun frames.  The underrun frame counter
+    // only exists in AudioTrackSharedStreaming.  Fortunately, underruns are not
+    // possible for static buffer tracks other than at end of buffer, so this is not a loss.
+
+    // FIXME also wake futex so that underrun is noticed more quickly
+    if (frameCount > 0) {
+        (void) android_atomic_or(CBLK_UNDERRUN, &mCblk->mFlags);
+    }
+}
+
+// ---------------------------------------------------------------------------
+
+}   // namespace android
diff --git a/media/libaudioclient/IAudioFlinger.cpp b/media/libaudioclient/IAudioFlinger.cpp
new file mode 100644
index 0000000..858b5cc
--- /dev/null
+++ b/media/libaudioclient/IAudioFlinger.cpp
@@ -0,0 +1,1491 @@
+/*
+**
+** Copyright 2007, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#define LOG_TAG "IAudioFlinger"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+
+#include "IAudioFlinger.h"
+
+namespace android {
+
+enum {
+    CREATE_TRACK = IBinder::FIRST_CALL_TRANSACTION,
+    OPEN_RECORD,
+    SAMPLE_RATE,
+    RESERVED,   // obsolete, was CHANNEL_COUNT
+    FORMAT,
+    FRAME_COUNT,
+    LATENCY,
+    SET_MASTER_VOLUME,
+    SET_MASTER_MUTE,
+    MASTER_VOLUME,
+    MASTER_MUTE,
+    SET_STREAM_VOLUME,
+    SET_STREAM_MUTE,
+    STREAM_VOLUME,
+    STREAM_MUTE,
+    SET_MODE,
+    SET_MIC_MUTE,
+    GET_MIC_MUTE,
+    SET_PARAMETERS,
+    GET_PARAMETERS,
+    REGISTER_CLIENT,
+    GET_INPUTBUFFERSIZE,
+    OPEN_OUTPUT,
+    OPEN_DUPLICATE_OUTPUT,
+    CLOSE_OUTPUT,
+    SUSPEND_OUTPUT,
+    RESTORE_OUTPUT,
+    OPEN_INPUT,
+    CLOSE_INPUT,
+    INVALIDATE_STREAM,
+    SET_VOICE_VOLUME,
+    GET_RENDER_POSITION,
+    GET_INPUT_FRAMES_LOST,
+    NEW_AUDIO_SESSION_ID,
+    ACQUIRE_AUDIO_SESSION_ID,
+    RELEASE_AUDIO_SESSION_ID,
+    QUERY_NUM_EFFECTS,
+    QUERY_EFFECT,
+    GET_EFFECT_DESCRIPTOR,
+    CREATE_EFFECT,
+    MOVE_EFFECTS,
+    LOAD_HW_MODULE,
+    GET_PRIMARY_OUTPUT_SAMPLING_RATE,
+    GET_PRIMARY_OUTPUT_FRAME_COUNT,
+    SET_LOW_RAM_DEVICE,
+    LIST_AUDIO_PORTS,
+    GET_AUDIO_PORT,
+    CREATE_AUDIO_PATCH,
+    RELEASE_AUDIO_PATCH,
+    LIST_AUDIO_PATCHES,
+    SET_AUDIO_PORT_CONFIG,
+    GET_AUDIO_HW_SYNC,
+    SYSTEM_READY,
+    FRAME_COUNT_HAL,
+};
+
+#define MAX_ITEMS_PER_LIST 1024
+
+class BpAudioFlinger : public BpInterface<IAudioFlinger>
+{
+public:
+    explicit BpAudioFlinger(const sp<IBinder>& impl)
+        : BpInterface<IAudioFlinger>(impl)
+    {
+    }
+
+    virtual sp<IAudioTrack> createTrack(
+                                audio_stream_type_t streamType,
+                                uint32_t sampleRate,
+                                audio_format_t format,
+                                audio_channel_mask_t channelMask,
+                                size_t *pFrameCount,
+                                audio_output_flags_t *flags,
+                                const sp<IMemory>& sharedBuffer,
+                                audio_io_handle_t output,
+                                pid_t pid,
+                                pid_t tid,
+                                audio_session_t *sessionId,
+                                int clientUid,
+                                status_t *status,
+                                audio_port_handle_t portId)
+    {
+        Parcel data, reply;
+        sp<IAudioTrack> track;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) streamType);
+        data.writeInt32(sampleRate);
+        data.writeInt32(format);
+        data.writeInt32(channelMask);
+        size_t frameCount = pFrameCount != NULL ? *pFrameCount : 0;
+        data.writeInt64(frameCount);
+        audio_output_flags_t lFlags = flags != NULL ? *flags : AUDIO_OUTPUT_FLAG_NONE;
+        data.writeInt32(lFlags);
+        // haveSharedBuffer
+        if (sharedBuffer != 0) {
+            data.writeInt32(true);
+            data.writeStrongBinder(IInterface::asBinder(sharedBuffer));
+        } else {
+            data.writeInt32(false);
+        }
+        data.writeInt32((int32_t) output);
+        data.writeInt32((int32_t) pid);
+        data.writeInt32((int32_t) tid);
+        audio_session_t lSessionId = AUDIO_SESSION_ALLOCATE;
+        if (sessionId != NULL) {
+            lSessionId = *sessionId;
+        }
+        data.writeInt32(lSessionId);
+        data.writeInt32(clientUid);
+        data.writeInt32(portId);
+        status_t lStatus = remote()->transact(CREATE_TRACK, data, &reply);
+        if (lStatus != NO_ERROR) {
+            ALOGE("createTrack error: %s", strerror(-lStatus));
+        } else {
+            frameCount = reply.readInt64();
+            if (pFrameCount != NULL) {
+                *pFrameCount = frameCount;
+            }
+            lFlags = (audio_output_flags_t)reply.readInt32();
+            if (flags != NULL) {
+                *flags = lFlags;
+            }
+            lSessionId = (audio_session_t) reply.readInt32();
+            if (sessionId != NULL) {
+                *sessionId = lSessionId;
+            }
+            lStatus = reply.readInt32();
+            track = interface_cast<IAudioTrack>(reply.readStrongBinder());
+            if (lStatus == NO_ERROR) {
+                if (track == 0) {
+                    ALOGE("createTrack should have returned an IAudioTrack");
+                    lStatus = UNKNOWN_ERROR;
+                }
+            } else {
+                if (track != 0) {
+                    ALOGE("createTrack returned an IAudioTrack but with status %d", lStatus);
+                    track.clear();
+                }
+            }
+        }
+        if (status != NULL) {
+            *status = lStatus;
+        }
+        return track;
+    }
+
+    virtual sp<IAudioRecord> openRecord(
+                                audio_io_handle_t input,
+                                uint32_t sampleRate,
+                                audio_format_t format,
+                                audio_channel_mask_t channelMask,
+                                const String16& opPackageName,
+                                size_t *pFrameCount,
+                                audio_input_flags_t *flags,
+                                pid_t pid,
+                                pid_t tid,
+                                int clientUid,
+                                audio_session_t *sessionId,
+                                size_t *notificationFrames,
+                                sp<IMemory>& cblk,
+                                sp<IMemory>& buffers,
+                                status_t *status,
+                                audio_port_handle_t portId)
+    {
+        Parcel data, reply;
+        sp<IAudioRecord> record;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) input);
+        data.writeInt32(sampleRate);
+        data.writeInt32(format);
+        data.writeInt32(channelMask);
+        data.writeString16(opPackageName);
+        size_t frameCount = pFrameCount != NULL ? *pFrameCount : 0;
+        data.writeInt64(frameCount);
+        audio_input_flags_t lFlags = flags != NULL ? *flags : AUDIO_INPUT_FLAG_NONE;
+        data.writeInt32(lFlags);
+        data.writeInt32((int32_t) pid);
+        data.writeInt32((int32_t) tid);
+        data.writeInt32((int32_t) clientUid);
+        audio_session_t lSessionId = AUDIO_SESSION_ALLOCATE;
+        if (sessionId != NULL) {
+            lSessionId = *sessionId;
+        }
+        data.writeInt32(lSessionId);
+        data.writeInt64(notificationFrames != NULL ? *notificationFrames : 0);
+        data.writeInt32(portId);
+        cblk.clear();
+        buffers.clear();
+        status_t lStatus = remote()->transact(OPEN_RECORD, data, &reply);
+        if (lStatus != NO_ERROR) {
+            ALOGE("openRecord error: %s", strerror(-lStatus));
+        } else {
+            frameCount = reply.readInt64();
+            if (pFrameCount != NULL) {
+                *pFrameCount = frameCount;
+            }
+            lFlags = (audio_input_flags_t)reply.readInt32();
+            if (flags != NULL) {
+                *flags = lFlags;
+            }
+            lSessionId = (audio_session_t) reply.readInt32();
+            if (sessionId != NULL) {
+                *sessionId = lSessionId;
+            }
+            size_t lNotificationFrames = (size_t) reply.readInt64();
+            if (notificationFrames != NULL) {
+                *notificationFrames = lNotificationFrames;
+            }
+            lStatus = reply.readInt32();
+            record = interface_cast<IAudioRecord>(reply.readStrongBinder());
+            cblk = interface_cast<IMemory>(reply.readStrongBinder());
+            if (cblk != 0 && cblk->pointer() == NULL) {
+                cblk.clear();
+            }
+            buffers = interface_cast<IMemory>(reply.readStrongBinder());
+            if (buffers != 0 && buffers->pointer() == NULL) {
+                buffers.clear();
+            }
+            if (lStatus == NO_ERROR) {
+                if (record == 0) {
+                    ALOGE("openRecord should have returned an IAudioRecord");
+                    lStatus = UNKNOWN_ERROR;
+                } else if (cblk == 0) {
+                    ALOGE("openRecord should have returned a cblk");
+                    lStatus = NO_MEMORY;
+                }
+                // buffers is permitted to be 0
+            } else {
+                if (record != 0 || cblk != 0 || buffers != 0) {
+                    ALOGE("openRecord returned an IAudioRecord, cblk, "
+                          "or buffers but with status %d", lStatus);
+                }
+            }
+            if (lStatus != NO_ERROR) {
+                record.clear();
+                cblk.clear();
+                buffers.clear();
+            }
+        }
+        if (status != NULL) {
+            *status = lStatus;
+        }
+        return record;
+    }
+
+    virtual uint32_t sampleRate(audio_io_handle_t ioHandle) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) ioHandle);
+        remote()->transact(SAMPLE_RATE, data, &reply);
+        return reply.readInt32();
+    }
+
+    // RESERVED for channelCount()
+
+    virtual audio_format_t format(audio_io_handle_t output) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) output);
+        remote()->transact(FORMAT, data, &reply);
+        return (audio_format_t) reply.readInt32();
+    }
+
+    virtual size_t frameCount(audio_io_handle_t ioHandle) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) ioHandle);
+        remote()->transact(FRAME_COUNT, data, &reply);
+        return reply.readInt64();
+    }
+
+    virtual uint32_t latency(audio_io_handle_t output) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) output);
+        remote()->transact(LATENCY, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t setMasterVolume(float value)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeFloat(value);
+        remote()->transact(SET_MASTER_VOLUME, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t setMasterMute(bool muted)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(muted);
+        remote()->transact(SET_MASTER_MUTE, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual float masterVolume() const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        remote()->transact(MASTER_VOLUME, data, &reply);
+        return reply.readFloat();
+    }
+
+    virtual bool masterMute() const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        remote()->transact(MASTER_MUTE, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t setStreamVolume(audio_stream_type_t stream, float value,
+            audio_io_handle_t output)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) stream);
+        data.writeFloat(value);
+        data.writeInt32((int32_t) output);
+        remote()->transact(SET_STREAM_VOLUME, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t setStreamMute(audio_stream_type_t stream, bool muted)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) stream);
+        data.writeInt32(muted);
+        remote()->transact(SET_STREAM_MUTE, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual float streamVolume(audio_stream_type_t stream, audio_io_handle_t output) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) stream);
+        data.writeInt32((int32_t) output);
+        remote()->transact(STREAM_VOLUME, data, &reply);
+        return reply.readFloat();
+    }
+
+    virtual bool streamMute(audio_stream_type_t stream) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) stream);
+        remote()->transact(STREAM_MUTE, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t setMode(audio_mode_t mode)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(mode);
+        remote()->transact(SET_MODE, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t setMicMute(bool state)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(state);
+        remote()->transact(SET_MIC_MUTE, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual bool getMicMute() const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        remote()->transact(GET_MIC_MUTE, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) ioHandle);
+        data.writeString8(keyValuePairs);
+        remote()->transact(SET_PARAMETERS, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) ioHandle);
+        data.writeString8(keys);
+        remote()->transact(GET_PARAMETERS, data, &reply);
+        return reply.readString8();
+    }
+
+    virtual void registerClient(const sp<IAudioFlingerClient>& client)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeStrongBinder(IInterface::asBinder(client));
+        remote()->transact(REGISTER_CLIENT, data, &reply);
+    }
+
+    virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
+            audio_channel_mask_t channelMask) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(sampleRate);
+        data.writeInt32(format);
+        data.writeInt32(channelMask);
+        remote()->transact(GET_INPUTBUFFERSIZE, data, &reply);
+        return reply.readInt64();
+    }
+
+    virtual status_t openOutput(audio_module_handle_t module,
+                                audio_io_handle_t *output,
+                                audio_config_t *config,
+                                audio_devices_t *devices,
+                                const String8& address,
+                                uint32_t *latencyMs,
+                                audio_output_flags_t flags)
+    {
+        if (output == NULL || config == NULL || devices == NULL || latencyMs == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(module);
+        data.write(config, sizeof(audio_config_t));
+        data.writeInt32(*devices);
+        data.writeString8(address);
+        data.writeInt32((int32_t) flags);
+        status_t status = remote()->transact(OPEN_OUTPUT, data, &reply);
+        if (status != NO_ERROR) {
+            *output = AUDIO_IO_HANDLE_NONE;
+            return status;
+        }
+        status = (status_t)reply.readInt32();
+        if (status != NO_ERROR) {
+            *output = AUDIO_IO_HANDLE_NONE;
+            return status;
+        }
+        *output = (audio_io_handle_t)reply.readInt32();
+        ALOGV("openOutput() returned output, %d", *output);
+        reply.read(config, sizeof(audio_config_t));
+        *devices = (audio_devices_t)reply.readInt32();
+        *latencyMs = reply.readInt32();
+        return NO_ERROR;
+    }
+
+    virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1,
+            audio_io_handle_t output2)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) output1);
+        data.writeInt32((int32_t) output2);
+        remote()->transact(OPEN_DUPLICATE_OUTPUT, data, &reply);
+        return (audio_io_handle_t) reply.readInt32();
+    }
+
+    virtual status_t closeOutput(audio_io_handle_t output)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) output);
+        remote()->transact(CLOSE_OUTPUT, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t suspendOutput(audio_io_handle_t output)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) output);
+        remote()->transact(SUSPEND_OUTPUT, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t restoreOutput(audio_io_handle_t output)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) output);
+        remote()->transact(RESTORE_OUTPUT, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t openInput(audio_module_handle_t module,
+                               audio_io_handle_t *input,
+                               audio_config_t *config,
+                               audio_devices_t *device,
+                               const String8& address,
+                               audio_source_t source,
+                               audio_input_flags_t flags)
+    {
+        if (input == NULL || config == NULL || device == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(module);
+        data.writeInt32(*input);
+        data.write(config, sizeof(audio_config_t));
+        data.writeInt32(*device);
+        data.writeString8(address);
+        data.writeInt32(source);
+        data.writeInt32(flags);
+        status_t status = remote()->transact(OPEN_INPUT, data, &reply);
+        if (status != NO_ERROR) {
+            *input = AUDIO_IO_HANDLE_NONE;
+            return status;
+        }
+        status = (status_t)reply.readInt32();
+        if (status != NO_ERROR) {
+            *input = AUDIO_IO_HANDLE_NONE;
+            return status;
+        }
+        *input = (audio_io_handle_t)reply.readInt32();
+        reply.read(config, sizeof(audio_config_t));
+        *device = (audio_devices_t)reply.readInt32();
+        return NO_ERROR;
+    }
+
+    virtual status_t closeInput(int input)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(input);
+        remote()->transact(CLOSE_INPUT, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t invalidateStream(audio_stream_type_t stream)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) stream);
+        remote()->transact(INVALIDATE_STREAM, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t setVoiceVolume(float volume)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeFloat(volume);
+        remote()->transact(SET_VOICE_VOLUME, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames,
+            audio_io_handle_t output) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) output);
+        remote()->transact(GET_RENDER_POSITION, data, &reply);
+        status_t status = reply.readInt32();
+        if (status == NO_ERROR) {
+            uint32_t tmp = reply.readInt32();
+            if (halFrames != NULL) {
+                *halFrames = tmp;
+            }
+            tmp = reply.readInt32();
+            if (dspFrames != NULL) {
+                *dspFrames = tmp;
+            }
+        }
+        return status;
+    }
+
+    virtual uint32_t getInputFramesLost(audio_io_handle_t ioHandle) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) ioHandle);
+        status_t status = remote()->transact(GET_INPUT_FRAMES_LOST, data, &reply);
+        if (status != NO_ERROR) {
+            return 0;
+        }
+        return (uint32_t) reply.readInt32();
+    }
+
+    virtual audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) use);
+        status_t status = remote()->transact(NEW_AUDIO_SESSION_ID, data, &reply);
+        audio_unique_id_t id = AUDIO_SESSION_ALLOCATE;
+        if (status == NO_ERROR) {
+            id = reply.readInt32();
+        }
+        return id;
+    }
+
+    virtual void acquireAudioSessionId(audio_session_t audioSession, int pid)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(audioSession);
+        data.writeInt32(pid);
+        remote()->transact(ACQUIRE_AUDIO_SESSION_ID, data, &reply);
+    }
+
+    virtual void releaseAudioSessionId(audio_session_t audioSession, int pid)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(audioSession);
+        data.writeInt32(pid);
+        remote()->transact(RELEASE_AUDIO_SESSION_ID, data, &reply);
+    }
+
+    virtual status_t queryNumberEffects(uint32_t *numEffects) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        status_t status = remote()->transact(QUERY_NUM_EFFECTS, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = reply.readInt32();
+        if (status != NO_ERROR) {
+            return status;
+        }
+        if (numEffects != NULL) {
+            *numEffects = (uint32_t)reply.readInt32();
+        }
+        return NO_ERROR;
+    }
+
+    virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const
+    {
+        if (pDescriptor == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(index);
+        status_t status = remote()->transact(QUERY_EFFECT, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = reply.readInt32();
+        if (status != NO_ERROR) {
+            return status;
+        }
+        reply.read(pDescriptor, sizeof(effect_descriptor_t));
+        return NO_ERROR;
+    }
+
+    virtual status_t getEffectDescriptor(const effect_uuid_t *pUuid,
+            effect_descriptor_t *pDescriptor) const
+    {
+        if (pUuid == NULL || pDescriptor == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.write(pUuid, sizeof(effect_uuid_t));
+        status_t status = remote()->transact(GET_EFFECT_DESCRIPTOR, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = reply.readInt32();
+        if (status != NO_ERROR) {
+            return status;
+        }
+        reply.read(pDescriptor, sizeof(effect_descriptor_t));
+        return NO_ERROR;
+    }
+
+    virtual sp<IEffect> createEffect(
+                                    effect_descriptor_t *pDesc,
+                                    const sp<IEffectClient>& client,
+                                    int32_t priority,
+                                    audio_io_handle_t output,
+                                    audio_session_t sessionId,
+                                    const String16& opPackageName,
+                                    pid_t pid,
+                                    status_t *status,
+                                    int *id,
+                                    int *enabled)
+    {
+        Parcel data, reply;
+        sp<IEffect> effect;
+
+        if (pDesc == NULL) {
+            return effect;
+            if (status != NULL) {
+                *status = BAD_VALUE;
+            }
+        }
+
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.write(pDesc, sizeof(effect_descriptor_t));
+        data.writeStrongBinder(IInterface::asBinder(client));
+        data.writeInt32(priority);
+        data.writeInt32((int32_t) output);
+        data.writeInt32(sessionId);
+        data.writeString16(opPackageName);
+        data.writeInt32((int32_t) pid);
+
+        status_t lStatus = remote()->transact(CREATE_EFFECT, data, &reply);
+        if (lStatus != NO_ERROR) {
+            ALOGE("createEffect error: %s", strerror(-lStatus));
+        } else {
+            lStatus = reply.readInt32();
+            int tmp = reply.readInt32();
+            if (id != NULL) {
+                *id = tmp;
+            }
+            tmp = reply.readInt32();
+            if (enabled != NULL) {
+                *enabled = tmp;
+            }
+            effect = interface_cast<IEffect>(reply.readStrongBinder());
+            reply.read(pDesc, sizeof(effect_descriptor_t));
+        }
+        if (status != NULL) {
+            *status = lStatus;
+        }
+
+        return effect;
+    }
+
+    virtual status_t moveEffects(audio_session_t session, audio_io_handle_t srcOutput,
+            audio_io_handle_t dstOutput)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(session);
+        data.writeInt32((int32_t) srcOutput);
+        data.writeInt32((int32_t) dstOutput);
+        remote()->transact(MOVE_EFFECTS, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual audio_module_handle_t loadHwModule(const char *name)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeCString(name);
+        remote()->transact(LOAD_HW_MODULE, data, &reply);
+        return (audio_module_handle_t) reply.readInt32();
+    }
+
+    virtual uint32_t getPrimaryOutputSamplingRate()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        remote()->transact(GET_PRIMARY_OUTPUT_SAMPLING_RATE, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual size_t getPrimaryOutputFrameCount()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        remote()->transact(GET_PRIMARY_OUTPUT_FRAME_COUNT, data, &reply);
+        return reply.readInt64();
+    }
+
+    virtual status_t setLowRamDevice(bool isLowRamDevice)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int) isLowRamDevice);
+        remote()->transact(SET_LOW_RAM_DEVICE, data, &reply);
+        return reply.readInt32();
+    }
+    virtual status_t listAudioPorts(unsigned int *num_ports,
+                                    struct audio_port *ports)
+    {
+        if (num_ports == NULL || *num_ports == 0 || ports == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(*num_ports);
+        status_t status = remote()->transact(LIST_AUDIO_PORTS, data, &reply);
+        if (status != NO_ERROR ||
+                (status = (status_t)reply.readInt32()) != NO_ERROR) {
+            return status;
+        }
+        *num_ports = (unsigned int)reply.readInt32();
+        reply.read(ports, *num_ports * sizeof(struct audio_port));
+        return status;
+    }
+    virtual status_t getAudioPort(struct audio_port *port)
+    {
+        if (port == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.write(port, sizeof(struct audio_port));
+        status_t status = remote()->transact(GET_AUDIO_PORT, data, &reply);
+        if (status != NO_ERROR ||
+                (status = (status_t)reply.readInt32()) != NO_ERROR) {
+            return status;
+        }
+        reply.read(port, sizeof(struct audio_port));
+        return status;
+    }
+    virtual status_t createAudioPatch(const struct audio_patch *patch,
+                                       audio_patch_handle_t *handle)
+    {
+        if (patch == NULL || handle == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.write(patch, sizeof(struct audio_patch));
+        data.write(handle, sizeof(audio_patch_handle_t));
+        status_t status = remote()->transact(CREATE_AUDIO_PATCH, data, &reply);
+        if (status != NO_ERROR ||
+                (status = (status_t)reply.readInt32()) != NO_ERROR) {
+            return status;
+        }
+        reply.read(handle, sizeof(audio_patch_handle_t));
+        return status;
+    }
+    virtual status_t releaseAudioPatch(audio_patch_handle_t handle)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.write(&handle, sizeof(audio_patch_handle_t));
+        status_t status = remote()->transact(RELEASE_AUDIO_PATCH, data, &reply);
+        if (status != NO_ERROR) {
+            status = (status_t)reply.readInt32();
+        }
+        return status;
+    }
+    virtual status_t listAudioPatches(unsigned int *num_patches,
+                                      struct audio_patch *patches)
+    {
+        if (num_patches == NULL || *num_patches == 0 || patches == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(*num_patches);
+        status_t status = remote()->transact(LIST_AUDIO_PATCHES, data, &reply);
+        if (status != NO_ERROR ||
+                (status = (status_t)reply.readInt32()) != NO_ERROR) {
+            return status;
+        }
+        *num_patches = (unsigned int)reply.readInt32();
+        reply.read(patches, *num_patches * sizeof(struct audio_patch));
+        return status;
+    }
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config)
+    {
+        if (config == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.write(config, sizeof(struct audio_port_config));
+        status_t status = remote()->transact(SET_AUDIO_PORT_CONFIG, data, &reply);
+        if (status != NO_ERROR) {
+            status = (status_t)reply.readInt32();
+        }
+        return status;
+    }
+    virtual audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32(sessionId);
+        status_t status = remote()->transact(GET_AUDIO_HW_SYNC, data, &reply);
+        if (status != NO_ERROR) {
+            return AUDIO_HW_SYNC_INVALID;
+        }
+        return (audio_hw_sync_t)reply.readInt32();
+    }
+    virtual status_t systemReady()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        return remote()->transact(SYSTEM_READY, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+    virtual size_t frameCountHAL(audio_io_handle_t ioHandle) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        data.writeInt32((int32_t) ioHandle);
+        status_t status = remote()->transact(FRAME_COUNT_HAL, data, &reply);
+        if (status != NO_ERROR) {
+            return 0;
+        }
+        return reply.readInt64();
+    }
+};
+
+IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger");
+
+// ----------------------------------------------------------------------
+
+status_t BnAudioFlinger::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    // Whitelist of relevant events to trigger log merging.
+    // Log merging should activate during audio activity of any kind. This are considered the
+    // most relevant events.
+    // TODO should select more wisely the items from the list
+    switch (code) {
+        case CREATE_TRACK:
+        case OPEN_RECORD:
+        case SET_MASTER_VOLUME:
+        case SET_MASTER_MUTE:
+        case SET_STREAM_VOLUME:
+        case SET_STREAM_MUTE:
+        case SET_MIC_MUTE:
+        case SET_PARAMETERS:
+        case OPEN_INPUT:
+        case SET_VOICE_VOLUME:
+        case CREATE_EFFECT:
+        case SYSTEM_READY: {
+            requestLogMerge();
+            break;
+        }
+        default:
+            break;
+    }
+    switch (code) {
+        case CREATE_TRACK: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            int streamType = data.readInt32();
+            uint32_t sampleRate = data.readInt32();
+            audio_format_t format = (audio_format_t) data.readInt32();
+            audio_channel_mask_t channelMask = data.readInt32();
+            size_t frameCount = data.readInt64();
+            audio_output_flags_t flags = (audio_output_flags_t) data.readInt32();
+            bool haveSharedBuffer = data.readInt32() != 0;
+            sp<IMemory> buffer;
+            if (haveSharedBuffer) {
+                buffer = interface_cast<IMemory>(data.readStrongBinder());
+            }
+            audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
+            pid_t pid = (pid_t) data.readInt32();
+            pid_t tid = (pid_t) data.readInt32();
+            audio_session_t sessionId = (audio_session_t) data.readInt32();
+            int clientUid = data.readInt32();
+            audio_port_handle_t portId = (audio_port_handle_t) data.readInt32();
+            status_t status = NO_ERROR;
+            sp<IAudioTrack> track;
+            if ((haveSharedBuffer && (buffer == 0)) ||
+                    ((buffer != 0) && (buffer->pointer() == NULL))) {
+                ALOGW("CREATE_TRACK: cannot retrieve shared memory");
+                status = DEAD_OBJECT;
+            } else {
+                track = createTrack(
+                        (audio_stream_type_t) streamType, sampleRate, format,
+                        channelMask, &frameCount, &flags, buffer, output, pid, tid,
+                        &sessionId, clientUid, &status, portId);
+                LOG_ALWAYS_FATAL_IF((track != 0) != (status == NO_ERROR));
+            }
+            reply->writeInt64(frameCount);
+            reply->writeInt32(flags);
+            reply->writeInt32(sessionId);
+            reply->writeInt32(status);
+            reply->writeStrongBinder(IInterface::asBinder(track));
+            return NO_ERROR;
+        } break;
+        case OPEN_RECORD: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_io_handle_t input = (audio_io_handle_t) data.readInt32();
+            uint32_t sampleRate = data.readInt32();
+            audio_format_t format = (audio_format_t) data.readInt32();
+            audio_channel_mask_t channelMask = data.readInt32();
+            const String16& opPackageName = data.readString16();
+            size_t frameCount = data.readInt64();
+            audio_input_flags_t flags = (audio_input_flags_t) data.readInt32();
+            pid_t pid = (pid_t) data.readInt32();
+            pid_t tid = (pid_t) data.readInt32();
+            int clientUid = data.readInt32();
+            audio_session_t sessionId = (audio_session_t) data.readInt32();
+            size_t notificationFrames = data.readInt64();
+            audio_port_handle_t portId = (audio_port_handle_t) data.readInt32();
+            sp<IMemory> cblk;
+            sp<IMemory> buffers;
+            status_t status = NO_ERROR;
+            sp<IAudioRecord> record = openRecord(input,
+                    sampleRate, format, channelMask, opPackageName, &frameCount, &flags,
+                    pid, tid, clientUid, &sessionId, &notificationFrames, cblk, buffers,
+                    &status, portId);
+            LOG_ALWAYS_FATAL_IF((record != 0) != (status == NO_ERROR));
+            reply->writeInt64(frameCount);
+            reply->writeInt32(flags);
+            reply->writeInt32(sessionId);
+            reply->writeInt64(notificationFrames);
+            reply->writeInt32(status);
+            reply->writeStrongBinder(IInterface::asBinder(record));
+            reply->writeStrongBinder(IInterface::asBinder(cblk));
+            reply->writeStrongBinder(IInterface::asBinder(buffers));
+            return NO_ERROR;
+        } break;
+        case SAMPLE_RATE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32( sampleRate((audio_io_handle_t) data.readInt32()) );
+            return NO_ERROR;
+        } break;
+
+        // RESERVED for channelCount()
+
+        case FORMAT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32( format((audio_io_handle_t) data.readInt32()) );
+            return NO_ERROR;
+        } break;
+        case FRAME_COUNT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt64( frameCount((audio_io_handle_t) data.readInt32()) );
+            return NO_ERROR;
+        } break;
+        case LATENCY: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32( latency((audio_io_handle_t) data.readInt32()) );
+            return NO_ERROR;
+        } break;
+        case SET_MASTER_VOLUME: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32( setMasterVolume(data.readFloat()) );
+            return NO_ERROR;
+        } break;
+        case SET_MASTER_MUTE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32( setMasterMute(data.readInt32()) );
+            return NO_ERROR;
+        } break;
+        case MASTER_VOLUME: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeFloat( masterVolume() );
+            return NO_ERROR;
+        } break;
+        case MASTER_MUTE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32( masterMute() );
+            return NO_ERROR;
+        } break;
+        case SET_STREAM_VOLUME: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            int stream = data.readInt32();
+            float volume = data.readFloat();
+            audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
+            reply->writeInt32( setStreamVolume((audio_stream_type_t) stream, volume, output) );
+            return NO_ERROR;
+        } break;
+        case SET_STREAM_MUTE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            int stream = data.readInt32();
+            reply->writeInt32( setStreamMute((audio_stream_type_t) stream, data.readInt32()) );
+            return NO_ERROR;
+        } break;
+        case STREAM_VOLUME: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            int stream = data.readInt32();
+            int output = data.readInt32();
+            reply->writeFloat( streamVolume((audio_stream_type_t) stream, output) );
+            return NO_ERROR;
+        } break;
+        case STREAM_MUTE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            int stream = data.readInt32();
+            reply->writeInt32( streamMute((audio_stream_type_t) stream) );
+            return NO_ERROR;
+        } break;
+        case SET_MODE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_mode_t mode = (audio_mode_t) data.readInt32();
+            reply->writeInt32( setMode(mode) );
+            return NO_ERROR;
+        } break;
+        case SET_MIC_MUTE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            int state = data.readInt32();
+            reply->writeInt32( setMicMute(state) );
+            return NO_ERROR;
+        } break;
+        case GET_MIC_MUTE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32( getMicMute() );
+            return NO_ERROR;
+        } break;
+        case SET_PARAMETERS: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32();
+            String8 keyValuePairs(data.readString8());
+            reply->writeInt32(setParameters(ioHandle, keyValuePairs));
+            return NO_ERROR;
+        } break;
+        case GET_PARAMETERS: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32();
+            String8 keys(data.readString8());
+            reply->writeString8(getParameters(ioHandle, keys));
+            return NO_ERROR;
+        } break;
+
+        case REGISTER_CLIENT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            sp<IAudioFlingerClient> client = interface_cast<IAudioFlingerClient>(
+                    data.readStrongBinder());
+            registerClient(client);
+            return NO_ERROR;
+        } break;
+        case GET_INPUTBUFFERSIZE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            uint32_t sampleRate = data.readInt32();
+            audio_format_t format = (audio_format_t) data.readInt32();
+            audio_channel_mask_t channelMask = data.readInt32();
+            reply->writeInt64( getInputBufferSize(sampleRate, format, channelMask) );
+            return NO_ERROR;
+        } break;
+        case OPEN_OUTPUT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_module_handle_t module = (audio_module_handle_t)data.readInt32();
+            audio_config_t config = {};
+            if (data.read(&config, sizeof(audio_config_t)) != NO_ERROR) {
+                ALOGE("b/23905951");
+            }
+            audio_devices_t devices = (audio_devices_t)data.readInt32();
+            String8 address(data.readString8());
+            audio_output_flags_t flags = (audio_output_flags_t) data.readInt32();
+            uint32_t latencyMs = 0;
+            audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
+            status_t status = openOutput(module, &output, &config,
+                                         &devices, address, &latencyMs, flags);
+            ALOGV("OPEN_OUTPUT output, %d", output);
+            reply->writeInt32((int32_t)status);
+            if (status == NO_ERROR) {
+                reply->writeInt32((int32_t)output);
+                reply->write(&config, sizeof(audio_config_t));
+                reply->writeInt32(devices);
+                reply->writeInt32(latencyMs);
+            }
+            return NO_ERROR;
+        } break;
+        case OPEN_DUPLICATE_OUTPUT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_io_handle_t output1 = (audio_io_handle_t) data.readInt32();
+            audio_io_handle_t output2 = (audio_io_handle_t) data.readInt32();
+            reply->writeInt32((int32_t) openDuplicateOutput(output1, output2));
+            return NO_ERROR;
+        } break;
+        case CLOSE_OUTPUT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32(closeOutput((audio_io_handle_t) data.readInt32()));
+            return NO_ERROR;
+        } break;
+        case SUSPEND_OUTPUT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32(suspendOutput((audio_io_handle_t) data.readInt32()));
+            return NO_ERROR;
+        } break;
+        case RESTORE_OUTPUT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32(restoreOutput((audio_io_handle_t) data.readInt32()));
+            return NO_ERROR;
+        } break;
+        case OPEN_INPUT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_module_handle_t module = (audio_module_handle_t)data.readInt32();
+            audio_io_handle_t input = (audio_io_handle_t)data.readInt32();
+            audio_config_t config = {};
+            if (data.read(&config, sizeof(audio_config_t)) != NO_ERROR) {
+                ALOGE("b/23905951");
+            }
+            audio_devices_t device = (audio_devices_t)data.readInt32();
+            String8 address(data.readString8());
+            audio_source_t source = (audio_source_t)data.readInt32();
+            audio_input_flags_t flags = (audio_input_flags_t) data.readInt32();
+
+            status_t status = openInput(module, &input, &config,
+                                        &device, address, source, flags);
+            reply->writeInt32((int32_t) status);
+            if (status == NO_ERROR) {
+                reply->writeInt32((int32_t) input);
+                reply->write(&config, sizeof(audio_config_t));
+                reply->writeInt32(device);
+            }
+            return NO_ERROR;
+        } break;
+        case CLOSE_INPUT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32(closeInput((audio_io_handle_t) data.readInt32()));
+            return NO_ERROR;
+        } break;
+        case INVALIDATE_STREAM: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_stream_type_t stream = (audio_stream_type_t) data.readInt32();
+            reply->writeInt32(invalidateStream(stream));
+            return NO_ERROR;
+        } break;
+        case SET_VOICE_VOLUME: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            float volume = data.readFloat();
+            reply->writeInt32( setVoiceVolume(volume) );
+            return NO_ERROR;
+        } break;
+        case GET_RENDER_POSITION: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
+            uint32_t halFrames = 0;
+            uint32_t dspFrames = 0;
+            status_t status = getRenderPosition(&halFrames, &dspFrames, output);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->writeInt32(halFrames);
+                reply->writeInt32(dspFrames);
+            }
+            return NO_ERROR;
+        }
+        case GET_INPUT_FRAMES_LOST: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32();
+            reply->writeInt32((int32_t) getInputFramesLost(ioHandle));
+            return NO_ERROR;
+        } break;
+        case NEW_AUDIO_SESSION_ID: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32(newAudioUniqueId((audio_unique_id_use_t) data.readInt32()));
+            return NO_ERROR;
+        } break;
+        case ACQUIRE_AUDIO_SESSION_ID: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_session_t audioSession = (audio_session_t) data.readInt32();
+            int pid = data.readInt32();
+            acquireAudioSessionId(audioSession, pid);
+            return NO_ERROR;
+        } break;
+        case RELEASE_AUDIO_SESSION_ID: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_session_t audioSession = (audio_session_t) data.readInt32();
+            int pid = data.readInt32();
+            releaseAudioSessionId(audioSession, pid);
+            return NO_ERROR;
+        } break;
+        case QUERY_NUM_EFFECTS: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            uint32_t numEffects = 0;
+            status_t status = queryNumberEffects(&numEffects);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->writeInt32((int32_t)numEffects);
+            }
+            return NO_ERROR;
+        }
+        case QUERY_EFFECT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            effect_descriptor_t desc = {};
+            status_t status = queryEffect(data.readInt32(), &desc);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->write(&desc, sizeof(effect_descriptor_t));
+            }
+            return NO_ERROR;
+        }
+        case GET_EFFECT_DESCRIPTOR: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            effect_uuid_t uuid;
+            data.read(&uuid, sizeof(effect_uuid_t));
+            effect_descriptor_t desc = {};
+            status_t status = getEffectDescriptor(&uuid, &desc);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->write(&desc, sizeof(effect_descriptor_t));
+            }
+            return NO_ERROR;
+        }
+        case CREATE_EFFECT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            effect_descriptor_t desc = {};
+            if (data.read(&desc, sizeof(effect_descriptor_t)) != NO_ERROR) {
+                ALOGE("b/23905951");
+            }
+            sp<IEffectClient> client = interface_cast<IEffectClient>(data.readStrongBinder());
+            int32_t priority = data.readInt32();
+            audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
+            audio_session_t sessionId = (audio_session_t) data.readInt32();
+            const String16 opPackageName = data.readString16();
+            pid_t pid = (pid_t)data.readInt32();
+
+            status_t status = NO_ERROR;
+            int id = 0;
+            int enabled = 0;
+
+            sp<IEffect> effect = createEffect(&desc, client, priority, output, sessionId,
+                    opPackageName, pid, &status, &id, &enabled);
+            reply->writeInt32(status);
+            reply->writeInt32(id);
+            reply->writeInt32(enabled);
+            reply->writeStrongBinder(IInterface::asBinder(effect));
+            reply->write(&desc, sizeof(effect_descriptor_t));
+            return NO_ERROR;
+        } break;
+        case MOVE_EFFECTS: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_session_t session = (audio_session_t) data.readInt32();
+            audio_io_handle_t srcOutput = (audio_io_handle_t) data.readInt32();
+            audio_io_handle_t dstOutput = (audio_io_handle_t) data.readInt32();
+            reply->writeInt32(moveEffects(session, srcOutput, dstOutput));
+            return NO_ERROR;
+        } break;
+        case LOAD_HW_MODULE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32(loadHwModule(data.readCString()));
+            return NO_ERROR;
+        } break;
+        case GET_PRIMARY_OUTPUT_SAMPLING_RATE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32(getPrimaryOutputSamplingRate());
+            return NO_ERROR;
+        } break;
+        case GET_PRIMARY_OUTPUT_FRAME_COUNT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt64(getPrimaryOutputFrameCount());
+            return NO_ERROR;
+        } break;
+        case SET_LOW_RAM_DEVICE: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            bool isLowRamDevice = data.readInt32() != 0;
+            reply->writeInt32(setLowRamDevice(isLowRamDevice));
+            return NO_ERROR;
+        } break;
+        case LIST_AUDIO_PORTS: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            unsigned int numPortsReq = data.readInt32();
+            if (numPortsReq > MAX_ITEMS_PER_LIST) {
+                numPortsReq = MAX_ITEMS_PER_LIST;
+            }
+            unsigned int numPorts = numPortsReq;
+            struct audio_port *ports =
+                    (struct audio_port *)calloc(numPortsReq,
+                                                           sizeof(struct audio_port));
+            if (ports == NULL) {
+                reply->writeInt32(NO_MEMORY);
+                reply->writeInt32(0);
+                return NO_ERROR;
+            }
+            status_t status = listAudioPorts(&numPorts, ports);
+            reply->writeInt32(status);
+            reply->writeInt32(numPorts);
+            if (status == NO_ERROR) {
+                if (numPortsReq > numPorts) {
+                    numPortsReq = numPorts;
+                }
+                reply->write(ports, numPortsReq * sizeof(struct audio_port));
+            }
+            free(ports);
+            return NO_ERROR;
+        } break;
+        case GET_AUDIO_PORT: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            struct audio_port port = {};
+            if (data.read(&port, sizeof(struct audio_port)) != NO_ERROR) {
+                ALOGE("b/23905951");
+            }
+            status_t status = getAudioPort(&port);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->write(&port, sizeof(struct audio_port));
+            }
+            return NO_ERROR;
+        } break;
+        case CREATE_AUDIO_PATCH: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            struct audio_patch patch;
+            data.read(&patch, sizeof(struct audio_patch));
+            audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE;
+            if (data.read(&handle, sizeof(audio_patch_handle_t)) != NO_ERROR) {
+                ALOGE("b/23905951");
+            }
+            status_t status = createAudioPatch(&patch, &handle);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->write(&handle, sizeof(audio_patch_handle_t));
+            }
+            return NO_ERROR;
+        } break;
+        case RELEASE_AUDIO_PATCH: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            audio_patch_handle_t handle;
+            data.read(&handle, sizeof(audio_patch_handle_t));
+            status_t status = releaseAudioPatch(handle);
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+        case LIST_AUDIO_PATCHES: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            unsigned int numPatchesReq = data.readInt32();
+            if (numPatchesReq > MAX_ITEMS_PER_LIST) {
+                numPatchesReq = MAX_ITEMS_PER_LIST;
+            }
+            unsigned int numPatches = numPatchesReq;
+            struct audio_patch *patches =
+                    (struct audio_patch *)calloc(numPatchesReq,
+                                                 sizeof(struct audio_patch));
+            if (patches == NULL) {
+                reply->writeInt32(NO_MEMORY);
+                reply->writeInt32(0);
+                return NO_ERROR;
+            }
+            status_t status = listAudioPatches(&numPatches, patches);
+            reply->writeInt32(status);
+            reply->writeInt32(numPatches);
+            if (status == NO_ERROR) {
+                if (numPatchesReq > numPatches) {
+                    numPatchesReq = numPatches;
+                }
+                reply->write(patches, numPatchesReq * sizeof(struct audio_patch));
+            }
+            free(patches);
+            return NO_ERROR;
+        } break;
+        case SET_AUDIO_PORT_CONFIG: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            struct audio_port_config config;
+            data.read(&config, sizeof(struct audio_port_config));
+            status_t status = setAudioPortConfig(&config);
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+        case GET_AUDIO_HW_SYNC: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt32(getAudioHwSyncForSession((audio_session_t) data.readInt32()));
+            return NO_ERROR;
+        } break;
+        case SYSTEM_READY: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            systemReady();
+            return NO_ERROR;
+        } break;
+        case FRAME_COUNT_HAL: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            reply->writeInt64( frameCountHAL((audio_io_handle_t) data.readInt32()) );
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libaudioclient/IAudioFlingerClient.cpp b/media/libaudioclient/IAudioFlingerClient.cpp
new file mode 100644
index 0000000..b2dbc4c
--- /dev/null
+++ b/media/libaudioclient/IAudioFlingerClient.cpp
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "IAudioFlingerClient"
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+
+#include <media/IAudioFlingerClient.h>
+#include <media/AudioSystem.h>
+
+namespace android {
+
+enum {
+    IO_CONFIG_CHANGED = IBinder::FIRST_CALL_TRANSACTION
+};
+
+class BpAudioFlingerClient : public BpInterface<IAudioFlingerClient>
+{
+public:
+    explicit BpAudioFlingerClient(const sp<IBinder>& impl)
+        : BpInterface<IAudioFlingerClient>(impl)
+    {
+    }
+
+    void ioConfigChanged(audio_io_config_event event, const sp<AudioIoDescriptor>& ioDesc)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlingerClient::getInterfaceDescriptor());
+        data.writeInt32(event);
+        data.writeInt32((int32_t)ioDesc->mIoHandle);
+        data.write(&ioDesc->mPatch, sizeof(struct audio_patch));
+        data.writeInt32(ioDesc->mSamplingRate);
+        data.writeInt32(ioDesc->mFormat);
+        data.writeInt32(ioDesc->mChannelMask);
+        data.writeInt64(ioDesc->mFrameCount);
+        data.writeInt64(ioDesc->mFrameCountHAL);
+        data.writeInt32(ioDesc->mLatency);
+        remote()->transact(IO_CONFIG_CHANGED, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+};
+
+IMPLEMENT_META_INTERFACE(AudioFlingerClient, "android.media.IAudioFlingerClient");
+
+// ----------------------------------------------------------------------
+
+status_t BnAudioFlingerClient::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+    case IO_CONFIG_CHANGED: {
+            CHECK_INTERFACE(IAudioFlingerClient, data, reply);
+            audio_io_config_event event = (audio_io_config_event)data.readInt32();
+            sp<AudioIoDescriptor> ioDesc = new AudioIoDescriptor();
+            ioDesc->mIoHandle = (audio_io_handle_t) data.readInt32();
+            data.read(&ioDesc->mPatch, sizeof(struct audio_patch));
+            ioDesc->mSamplingRate = data.readInt32();
+            ioDesc->mFormat = (audio_format_t) data.readInt32();
+            ioDesc->mChannelMask = (audio_channel_mask_t) data.readInt32();
+            ioDesc->mFrameCount = data.readInt64();
+            ioDesc->mFrameCountHAL = data.readInt64();
+            ioDesc->mLatency = data.readInt32();
+            ioConfigChanged(event, ioDesc);
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libaudioclient/IAudioPolicyService.cpp b/media/libaudioclient/IAudioPolicyService.cpp
new file mode 100644
index 0000000..f0f413d
--- /dev/null
+++ b/media/libaudioclient/IAudioPolicyService.cpp
@@ -0,0 +1,1415 @@
+/*
+**
+** Copyright 2009, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#define LOG_TAG "IAudioPolicyService"
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+
+#include <media/AudioEffect.h>
+#include <media/IAudioPolicyService.h>
+
+#include <system/audio.h>
+
+namespace android {
+
+enum {
+    SET_DEVICE_CONNECTION_STATE = IBinder::FIRST_CALL_TRANSACTION,
+    GET_DEVICE_CONNECTION_STATE,
+    HANDLE_DEVICE_CONFIG_CHANGE,
+    SET_PHONE_STATE,
+    SET_RINGER_MODE,    // reserved, no longer used
+    SET_FORCE_USE,
+    GET_FORCE_USE,
+    GET_OUTPUT,
+    START_OUTPUT,
+    STOP_OUTPUT,
+    RELEASE_OUTPUT,
+    GET_INPUT_FOR_ATTR,
+    START_INPUT,
+    STOP_INPUT,
+    RELEASE_INPUT,
+    INIT_STREAM_VOLUME,
+    SET_STREAM_VOLUME,
+    GET_STREAM_VOLUME,
+    GET_STRATEGY_FOR_STREAM,
+    GET_OUTPUT_FOR_EFFECT,
+    REGISTER_EFFECT,
+    UNREGISTER_EFFECT,
+    IS_STREAM_ACTIVE,
+    IS_SOURCE_ACTIVE,
+    GET_DEVICES_FOR_STREAM,
+    QUERY_DEFAULT_PRE_PROCESSING,
+    SET_EFFECT_ENABLED,
+    IS_STREAM_ACTIVE_REMOTELY,
+    IS_OFFLOAD_SUPPORTED,
+    LIST_AUDIO_PORTS,
+    GET_AUDIO_PORT,
+    CREATE_AUDIO_PATCH,
+    RELEASE_AUDIO_PATCH,
+    LIST_AUDIO_PATCHES,
+    SET_AUDIO_PORT_CONFIG,
+    REGISTER_CLIENT,
+    GET_OUTPUT_FOR_ATTR,
+    ACQUIRE_SOUNDTRIGGER_SESSION,
+    RELEASE_SOUNDTRIGGER_SESSION,
+    GET_PHONE_STATE,
+    REGISTER_POLICY_MIXES,
+    START_AUDIO_SOURCE,
+    STOP_AUDIO_SOURCE,
+    SET_AUDIO_PORT_CALLBACK_ENABLED,
+    SET_MASTER_MONO,
+    GET_MASTER_MONO,
+};
+
+#define MAX_ITEMS_PER_LIST 1024
+
+class BpAudioPolicyService : public BpInterface<IAudioPolicyService>
+{
+public:
+    explicit BpAudioPolicyService(const sp<IBinder>& impl)
+        : BpInterface<IAudioPolicyService>(impl)
+    {
+    }
+
+    virtual status_t setDeviceConnectionState(
+                                    audio_devices_t device,
+                                    audio_policy_dev_state_t state,
+                                    const char *device_address,
+                                    const char *device_name)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast <uint32_t>(device));
+        data.writeInt32(static_cast <uint32_t>(state));
+        data.writeCString(device_address);
+        data.writeCString(device_name);
+        remote()->transact(SET_DEVICE_CONNECTION_STATE, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual audio_policy_dev_state_t getDeviceConnectionState(
+                                    audio_devices_t device,
+                                    const char *device_address)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast <uint32_t>(device));
+        data.writeCString(device_address);
+        remote()->transact(GET_DEVICE_CONNECTION_STATE, data, &reply);
+        return static_cast <audio_policy_dev_state_t>(reply.readInt32());
+    }
+
+    virtual status_t handleDeviceConfigChange(audio_devices_t device,
+                                              const char *device_address,
+                                              const char *device_name)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast <uint32_t>(device));
+        data.writeCString(device_address);
+        data.writeCString(device_name);
+        remote()->transact(HANDLE_DEVICE_CONFIG_CHANGE, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual status_t setPhoneState(audio_mode_t state)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(state);
+        remote()->transact(SET_PHONE_STATE, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast <uint32_t>(usage));
+        data.writeInt32(static_cast <uint32_t>(config));
+        remote()->transact(SET_FORCE_USE, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast <uint32_t>(usage));
+        remote()->transact(GET_FORCE_USE, data, &reply);
+        return static_cast <audio_policy_forced_cfg_t> (reply.readInt32());
+    }
+
+    virtual audio_io_handle_t getOutput(
+                                        audio_stream_type_t stream,
+                                        uint32_t samplingRate,
+                                        audio_format_t format,
+                                        audio_channel_mask_t channelMask,
+                                        audio_output_flags_t flags,
+                                        const audio_offload_info_t *offloadInfo)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast <uint32_t>(stream));
+        data.writeInt32(samplingRate);
+        data.writeInt32(static_cast <uint32_t>(format));
+        data.writeInt32(channelMask);
+        data.writeInt32(static_cast <uint32_t>(flags));
+        // hasOffloadInfo
+        if (offloadInfo == NULL) {
+            data.writeInt32(0);
+        } else {
+            data.writeInt32(1);
+            data.write(offloadInfo, sizeof(audio_offload_info_t));
+        }
+        remote()->transact(GET_OUTPUT, data, &reply);
+        return static_cast <audio_io_handle_t> (reply.readInt32());
+    }
+
+    virtual status_t getOutputForAttr(const audio_attributes_t *attr,
+                                        audio_io_handle_t *output,
+                                        audio_session_t session,
+                                        audio_stream_type_t *stream,
+                                        uid_t uid,
+                                        const audio_config_t *config,
+                                        audio_output_flags_t flags,
+                                        audio_port_handle_t selectedDeviceId,
+                                        audio_port_handle_t *portId)
+        {
+            Parcel data, reply;
+            data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+            if (attr == NULL) {
+                if (stream == NULL) {
+                    ALOGE("getOutputForAttr(): NULL audio attributes and stream type");
+                    return BAD_VALUE;
+                }
+                if (*stream == AUDIO_STREAM_DEFAULT) {
+                    ALOGE("getOutputForAttr unspecified stream type");
+                    return BAD_VALUE;
+                }
+            }
+            if (output == NULL) {
+                ALOGE("getOutputForAttr NULL output - shouldn't happen");
+                return BAD_VALUE;
+            }
+            if (portId == NULL) {
+                ALOGE("getOutputForAttr NULL portId - shouldn't happen");
+                return BAD_VALUE;
+            }
+            if (attr == NULL) {
+                data.writeInt32(0);
+            } else {
+                data.writeInt32(1);
+                data.write(attr, sizeof(audio_attributes_t));
+            }
+            data.writeInt32(session);
+            if (stream == NULL) {
+                data.writeInt32(0);
+            } else {
+                data.writeInt32(1);
+                data.writeInt32(*stream);
+            }
+            data.writeInt32(uid);
+            data.write(config, sizeof(audio_config_t));
+            data.writeInt32(static_cast <uint32_t>(flags));
+            data.writeInt32(selectedDeviceId);
+            data.writeInt32(*portId);
+            status_t status = remote()->transact(GET_OUTPUT_FOR_ATTR, data, &reply);
+            if (status != NO_ERROR) {
+                return status;
+            }
+            status = (status_t)reply.readInt32();
+            if (status != NO_ERROR) {
+                return status;
+            }
+            *output = (audio_io_handle_t)reply.readInt32();
+            audio_stream_type_t lStream = (audio_stream_type_t)reply.readInt32();
+            if (stream != NULL) {
+                *stream = lStream;
+            }
+            *portId = (audio_port_handle_t)reply.readInt32();
+            return status;
+        }
+
+    virtual status_t startOutput(audio_io_handle_t output,
+                                 audio_stream_type_t stream,
+                                 audio_session_t session)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(output);
+        data.writeInt32((int32_t) stream);
+        data.writeInt32((int32_t) session);
+        remote()->transact(START_OUTPUT, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual status_t stopOutput(audio_io_handle_t output,
+                                audio_stream_type_t stream,
+                                audio_session_t session)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(output);
+        data.writeInt32((int32_t) stream);
+        data.writeInt32((int32_t) session);
+        remote()->transact(STOP_OUTPUT, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual void releaseOutput(audio_io_handle_t output,
+                               audio_stream_type_t stream,
+                               audio_session_t session)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(output);
+        data.writeInt32((int32_t)stream);
+        data.writeInt32((int32_t)session);
+        remote()->transact(RELEASE_OUTPUT, data, &reply);
+    }
+
+    virtual status_t getInputForAttr(const audio_attributes_t *attr,
+                                     audio_io_handle_t *input,
+                                     audio_session_t session,
+                                     pid_t pid,
+                                     uid_t uid,
+                                     const audio_config_base_t *config,
+                                     audio_input_flags_t flags,
+                                     audio_port_handle_t selectedDeviceId,
+                                     audio_port_handle_t *portId)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        if (attr == NULL) {
+            ALOGE("getInputForAttr NULL attr - shouldn't happen");
+            return BAD_VALUE;
+        }
+        if (input == NULL) {
+            ALOGE("getInputForAttr NULL input - shouldn't happen");
+            return BAD_VALUE;
+        }
+        if (portId == NULL) {
+            ALOGE("getInputForAttr NULL portId - shouldn't happen");
+            return BAD_VALUE;
+        }
+        data.write(attr, sizeof(audio_attributes_t));
+        data.writeInt32(session);
+        data.writeInt32(pid);
+        data.writeInt32(uid);
+        data.write(config, sizeof(audio_config_base_t));
+        data.writeInt32(flags);
+        data.writeInt32(selectedDeviceId);
+        data.writeInt32(*portId);
+        status_t status = remote()->transact(GET_INPUT_FOR_ATTR, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = reply.readInt32();
+        if (status != NO_ERROR) {
+            return status;
+        }
+        *input = (audio_io_handle_t)reply.readInt32();
+        *portId = (audio_port_handle_t)reply.readInt32();
+        return NO_ERROR;
+    }
+
+    virtual status_t startInput(audio_io_handle_t input,
+                                audio_session_t session)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(input);
+        data.writeInt32(session);
+        remote()->transact(START_INPUT, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual status_t stopInput(audio_io_handle_t input,
+                               audio_session_t session)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(input);
+        data.writeInt32(session);
+        remote()->transact(STOP_INPUT, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual void releaseInput(audio_io_handle_t input,
+                              audio_session_t session)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(input);
+        data.writeInt32(session);
+        remote()->transact(RELEASE_INPUT, data, &reply);
+    }
+
+    virtual status_t initStreamVolume(audio_stream_type_t stream,
+                                    int indexMin,
+                                    int indexMax)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast <uint32_t>(stream));
+        data.writeInt32(indexMin);
+        data.writeInt32(indexMax);
+        remote()->transact(INIT_STREAM_VOLUME, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
+                                          int index,
+                                          audio_devices_t device)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast <uint32_t>(stream));
+        data.writeInt32(index);
+        data.writeInt32(static_cast <uint32_t>(device));
+        remote()->transact(SET_STREAM_VOLUME, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual status_t getStreamVolumeIndex(audio_stream_type_t stream,
+                                          int *index,
+                                          audio_devices_t device)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast <uint32_t>(stream));
+        data.writeInt32(static_cast <uint32_t>(device));
+
+        remote()->transact(GET_STREAM_VOLUME, data, &reply);
+        int lIndex = reply.readInt32();
+        if (index) *index = lIndex;
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual uint32_t getStrategyForStream(audio_stream_type_t stream)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast <uint32_t>(stream));
+        remote()->transact(GET_STRATEGY_FOR_STREAM, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast <uint32_t>(stream));
+        remote()->transact(GET_DEVICES_FOR_STREAM, data, &reply);
+        return (audio_devices_t) reply.readInt32();
+    }
+
+    virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.write(desc, sizeof(effect_descriptor_t));
+        remote()->transact(GET_OUTPUT_FOR_EFFECT, data, &reply);
+        return static_cast <audio_io_handle_t> (reply.readInt32());
+    }
+
+    virtual status_t registerEffect(const effect_descriptor_t *desc,
+                                        audio_io_handle_t io,
+                                        uint32_t strategy,
+                                        audio_session_t session,
+                                        int id)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.write(desc, sizeof(effect_descriptor_t));
+        data.writeInt32(io);
+        data.writeInt32(strategy);
+        data.writeInt32(session);
+        data.writeInt32(id);
+        remote()->transact(REGISTER_EFFECT, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual status_t unregisterEffect(int id)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(id);
+        remote()->transact(UNREGISTER_EFFECT, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual status_t setEffectEnabled(int id, bool enabled)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(id);
+        data.writeInt32(enabled);
+        remote()->transact(SET_EFFECT_ENABLED, data, &reply);
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32((int32_t) stream);
+        data.writeInt32(inPastMs);
+        remote()->transact(IS_STREAM_ACTIVE, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32((int32_t) stream);
+        data.writeInt32(inPastMs);
+        remote()->transact(IS_STREAM_ACTIVE_REMOTELY, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual bool isSourceActive(audio_source_t source) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32((int32_t) source);
+        remote()->transact(IS_SOURCE_ACTIVE, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
+                                               effect_descriptor_t *descriptors,
+                                               uint32_t *count)
+    {
+        if (descriptors == NULL || count == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(audioSession);
+        data.writeInt32(*count);
+        status_t status = remote()->transact(QUERY_DEFAULT_PRE_PROCESSING, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = static_cast <status_t> (reply.readInt32());
+        uint32_t retCount = reply.readInt32();
+        if (retCount != 0) {
+            uint32_t numDesc = (retCount < *count) ? retCount : *count;
+            reply.read(descriptors, sizeof(effect_descriptor_t) * numDesc);
+        }
+        *count = retCount;
+        return status;
+    }
+
+    virtual bool isOffloadSupported(const audio_offload_info_t& info)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.write(&info, sizeof(audio_offload_info_t));
+        remote()->transact(IS_OFFLOAD_SUPPORTED, data, &reply);
+        return reply.readInt32();
+    }
+
+    virtual status_t listAudioPorts(audio_port_role_t role,
+                                    audio_port_type_t type,
+                                    unsigned int *num_ports,
+                                    struct audio_port *ports,
+                                    unsigned int *generation)
+    {
+        if (num_ports == NULL || (*num_ports != 0 && ports == NULL) ||
+                generation == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        unsigned int numPortsReq = (ports == NULL) ? 0 : *num_ports;
+        data.writeInt32(role);
+        data.writeInt32(type);
+        data.writeInt32(numPortsReq);
+        status_t status = remote()->transact(LIST_AUDIO_PORTS, data, &reply);
+        if (status == NO_ERROR) {
+            status = (status_t)reply.readInt32();
+            *num_ports = (unsigned int)reply.readInt32();
+        }
+        if (status == NO_ERROR) {
+            if (numPortsReq > *num_ports) {
+                numPortsReq = *num_ports;
+            }
+            if (numPortsReq > 0) {
+                reply.read(ports, numPortsReq * sizeof(struct audio_port));
+            }
+            *generation = reply.readInt32();
+        }
+        return status;
+    }
+
+    virtual status_t getAudioPort(struct audio_port *port)
+    {
+        if (port == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.write(port, sizeof(struct audio_port));
+        status_t status = remote()->transact(GET_AUDIO_PORT, data, &reply);
+        if (status != NO_ERROR ||
+                (status = (status_t)reply.readInt32()) != NO_ERROR) {
+            return status;
+        }
+        reply.read(port, sizeof(struct audio_port));
+        return status;
+    }
+
+    virtual status_t createAudioPatch(const struct audio_patch *patch,
+                                       audio_patch_handle_t *handle)
+    {
+        if (patch == NULL || handle == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.write(patch, sizeof(struct audio_patch));
+        data.write(handle, sizeof(audio_patch_handle_t));
+        status_t status = remote()->transact(CREATE_AUDIO_PATCH, data, &reply);
+        if (status != NO_ERROR ||
+                (status = (status_t)reply.readInt32()) != NO_ERROR) {
+            return status;
+        }
+        reply.read(handle, sizeof(audio_patch_handle_t));
+        return status;
+    }
+
+    virtual status_t releaseAudioPatch(audio_patch_handle_t handle)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.write(&handle, sizeof(audio_patch_handle_t));
+        status_t status = remote()->transact(RELEASE_AUDIO_PATCH, data, &reply);
+        if (status != NO_ERROR) {
+            status = (status_t)reply.readInt32();
+        }
+        return status;
+    }
+
+    virtual status_t listAudioPatches(unsigned int *num_patches,
+                                      struct audio_patch *patches,
+                                      unsigned int *generation)
+    {
+        if (num_patches == NULL || (*num_patches != 0 && patches == NULL) ||
+                generation == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        unsigned int numPatchesReq = (patches == NULL) ? 0 : *num_patches;
+        data.writeInt32(numPatchesReq);
+        status_t status = remote()->transact(LIST_AUDIO_PATCHES, data, &reply);
+        if (status == NO_ERROR) {
+            status = (status_t)reply.readInt32();
+            *num_patches = (unsigned int)reply.readInt32();
+        }
+        if (status == NO_ERROR) {
+            if (numPatchesReq > *num_patches) {
+                numPatchesReq = *num_patches;
+            }
+            if (numPatchesReq > 0) {
+                reply.read(patches, numPatchesReq * sizeof(struct audio_patch));
+            }
+            *generation = reply.readInt32();
+        }
+        return status;
+    }
+
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config)
+    {
+        if (config == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.write(config, sizeof(struct audio_port_config));
+        status_t status = remote()->transact(SET_AUDIO_PORT_CONFIG, data, &reply);
+        if (status != NO_ERROR) {
+            status = (status_t)reply.readInt32();
+        }
+        return status;
+    }
+
+    virtual void registerClient(const sp<IAudioPolicyServiceClient>& client)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeStrongBinder(IInterface::asBinder(client));
+        remote()->transact(REGISTER_CLIENT, data, &reply);
+    }
+
+    virtual void setAudioPortCallbacksEnabled(bool enabled)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(enabled ? 1 : 0);
+        remote()->transact(SET_AUDIO_PORT_CALLBACK_ENABLED, data, &reply);
+    }
+
+    virtual status_t acquireSoundTriggerSession(audio_session_t *session,
+                                            audio_io_handle_t *ioHandle,
+                                            audio_devices_t *device)
+    {
+        if (session == NULL || ioHandle == NULL || device == NULL) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        status_t status = remote()->transact(ACQUIRE_SOUNDTRIGGER_SESSION, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = (status_t)reply.readInt32();
+        if (status == NO_ERROR) {
+            *session = (audio_session_t)reply.readInt32();
+            *ioHandle = (audio_io_handle_t)reply.readInt32();
+            *device = (audio_devices_t)reply.readInt32();
+        }
+        return status;
+    }
+
+    virtual status_t releaseSoundTriggerSession(audio_session_t session)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(session);
+        status_t status = remote()->transact(RELEASE_SOUNDTRIGGER_SESSION, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        return (status_t)reply.readInt32();
+    }
+
+    virtual audio_mode_t getPhoneState()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_PHONE_STATE, data, &reply);
+        if (status != NO_ERROR) {
+            return AUDIO_MODE_INVALID;
+        }
+        return (audio_mode_t)reply.readInt32();
+    }
+
+    virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(registration ? 1 : 0);
+        size_t size = mixes.size();
+        if (size > MAX_MIXES_PER_POLICY) {
+            size = MAX_MIXES_PER_POLICY;
+        }
+        size_t sizePosition = data.dataPosition();
+        data.writeInt32(size);
+        size_t finalSize = size;
+        for (size_t i = 0; i < size; i++) {
+            size_t position = data.dataPosition();
+            if (mixes[i].writeToParcel(&data) != NO_ERROR) {
+                data.setDataPosition(position);
+                finalSize--;
+            }
+        }
+        if (size != finalSize) {
+            size_t position = data.dataPosition();
+            data.setDataPosition(sizePosition);
+            data.writeInt32(finalSize);
+            data.setDataPosition(position);
+        }
+        status_t status = remote()->transact(REGISTER_POLICY_MIXES, data, &reply);
+        if (status == NO_ERROR) {
+            status = (status_t)reply.readInt32();
+        }
+        return status;
+    }
+
+    virtual status_t startAudioSource(const struct audio_port_config *source,
+                                      const audio_attributes_t *attributes,
+                                      audio_patch_handle_t *handle)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        if (source == NULL || attributes == NULL || handle == NULL) {
+            return BAD_VALUE;
+        }
+        data.write(source, sizeof(struct audio_port_config));
+        data.write(attributes, sizeof(audio_attributes_t));
+        status_t status = remote()->transact(START_AUDIO_SOURCE, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = (status_t)reply.readInt32();
+        if (status != NO_ERROR) {
+            return status;
+        }
+        *handle = (audio_patch_handle_t)reply.readInt32();
+        return status;
+    }
+
+    virtual status_t stopAudioSource(audio_patch_handle_t handle)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(handle);
+        status_t status = remote()->transact(STOP_AUDIO_SOURCE, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = (status_t)reply.readInt32();
+        return status;
+    }
+
+    virtual status_t setMasterMono(bool mono)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(static_cast<int32_t>(mono));
+        status_t status = remote()->transact(SET_MASTER_MONO, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        return static_cast<status_t>(reply.readInt32());
+    }
+
+    virtual status_t getMasterMono(bool *mono)
+    {
+        if (mono == nullptr) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+
+        status_t status = remote()->transact(GET_MASTER_MONO, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = static_cast<status_t>(reply.readInt32());
+        if (status == NO_ERROR) {
+            *mono = static_cast<bool>(reply.readInt32());
+        }
+        return status;
+    }
+};
+
+IMPLEMENT_META_INTERFACE(AudioPolicyService, "android.media.IAudioPolicyService");
+
+// ----------------------------------------------------------------------
+
+
+status_t BnAudioPolicyService::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+        case SET_DEVICE_CONNECTION_STATE: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_devices_t device =
+                    static_cast <audio_devices_t>(data.readInt32());
+            audio_policy_dev_state_t state =
+                    static_cast <audio_policy_dev_state_t>(data.readInt32());
+            const char *device_address = data.readCString();
+            const char *device_name = data.readCString();
+            if (device_address == nullptr || device_name == nullptr) {
+                ALOGE("Bad Binder transaction: SET_DEVICE_CONNECTION_STATE for device %u", device);
+                reply->writeInt32(static_cast<int32_t> (BAD_VALUE));
+            } else {
+                reply->writeInt32(static_cast<uint32_t> (setDeviceConnectionState(device,
+                                                                                  state,
+                                                                                  device_address,
+                                                                                  device_name)));
+            }
+            return NO_ERROR;
+        } break;
+
+        case GET_DEVICE_CONNECTION_STATE: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_devices_t device =
+                    static_cast<audio_devices_t> (data.readInt32());
+            const char *device_address = data.readCString();
+            if (device_address == nullptr) {
+                ALOGE("Bad Binder transaction: GET_DEVICE_CONNECTION_STATE for device %u", device);
+                reply->writeInt32(static_cast<int32_t> (AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE));
+            } else {
+                reply->writeInt32(static_cast<uint32_t> (getDeviceConnectionState(device,
+                                                                                  device_address)));
+            }
+            return NO_ERROR;
+        } break;
+
+        case HANDLE_DEVICE_CONFIG_CHANGE: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_devices_t device =
+                    static_cast <audio_devices_t>(data.readInt32());
+            const char *device_address = data.readCString();
+            const char *device_name = data.readCString();
+            if (device_address == nullptr || device_name == nullptr) {
+                ALOGE("Bad Binder transaction: HANDLE_DEVICE_CONFIG_CHANGE for device %u", device);
+                reply->writeInt32(static_cast<int32_t> (BAD_VALUE));
+            } else {
+                reply->writeInt32(static_cast<uint32_t> (handleDeviceConfigChange(device,
+                                                                                  device_address,
+                                                                                  device_name)));
+            }
+            return NO_ERROR;
+        } break;
+
+        case SET_PHONE_STATE: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            reply->writeInt32(static_cast <uint32_t>(setPhoneState(
+                    (audio_mode_t) data.readInt32())));
+            return NO_ERROR;
+        } break;
+
+        case SET_FORCE_USE: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_policy_force_use_t usage = static_cast <audio_policy_force_use_t>(
+                    data.readInt32());
+            audio_policy_forced_cfg_t config =
+                    static_cast <audio_policy_forced_cfg_t>(data.readInt32());
+            reply->writeInt32(static_cast <uint32_t>(setForceUse(usage, config)));
+            return NO_ERROR;
+        } break;
+
+        case GET_FORCE_USE: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_policy_force_use_t usage = static_cast <audio_policy_force_use_t>(
+                    data.readInt32());
+            reply->writeInt32(static_cast <uint32_t>(getForceUse(usage)));
+            return NO_ERROR;
+        } break;
+
+        case GET_OUTPUT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_stream_type_t stream =
+                    static_cast <audio_stream_type_t>(data.readInt32());
+            uint32_t samplingRate = data.readInt32();
+            audio_format_t format = (audio_format_t) data.readInt32();
+            audio_channel_mask_t channelMask = data.readInt32();
+            audio_output_flags_t flags =
+                    static_cast <audio_output_flags_t>(data.readInt32());
+            bool hasOffloadInfo = data.readInt32() != 0;
+            audio_offload_info_t offloadInfo;
+            if (hasOffloadInfo) {
+                data.read(&offloadInfo, sizeof(audio_offload_info_t));
+            }
+            audio_io_handle_t output = getOutput(stream,
+                                                 samplingRate,
+                                                 format,
+                                                 channelMask,
+                                                 flags,
+                                                 hasOffloadInfo ? &offloadInfo : NULL);
+            reply->writeInt32(static_cast <int>(output));
+            return NO_ERROR;
+        } break;
+
+        case GET_OUTPUT_FOR_ATTR: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_attributes_t attr;
+            bool hasAttributes = data.readInt32() != 0;
+            if (hasAttributes) {
+                data.read(&attr, sizeof(audio_attributes_t));
+            }
+            audio_session_t session = (audio_session_t)data.readInt32();
+            audio_stream_type_t stream = AUDIO_STREAM_DEFAULT;
+            bool hasStream = data.readInt32() != 0;
+            if (hasStream) {
+                stream = (audio_stream_type_t)data.readInt32();
+            }
+            uid_t uid = (uid_t)data.readInt32();
+            audio_config_t config;
+            memset(&config, 0, sizeof(audio_config_t));
+            data.read(&config, sizeof(audio_config_t));
+            audio_output_flags_t flags =
+                    static_cast <audio_output_flags_t>(data.readInt32());
+            audio_port_handle_t selectedDeviceId = data.readInt32();
+            audio_port_handle_t portId = (audio_port_handle_t)data.readInt32();
+            audio_io_handle_t output = 0;
+            status_t status = getOutputForAttr(hasAttributes ? &attr : NULL,
+                    &output, session, &stream, uid,
+                    &config,
+                    flags, selectedDeviceId, &portId);
+            reply->writeInt32(status);
+            reply->writeInt32(output);
+            reply->writeInt32(stream);
+            reply->writeInt32(portId);
+            return NO_ERROR;
+        } break;
+
+        case START_OUTPUT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
+            audio_stream_type_t stream =
+                                static_cast <audio_stream_type_t>(data.readInt32());
+            audio_session_t session = (audio_session_t)data.readInt32();
+            reply->writeInt32(static_cast <uint32_t>(startOutput(output,
+                                                                 stream,
+                                                                 session)));
+            return NO_ERROR;
+        } break;
+
+        case STOP_OUTPUT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
+            audio_stream_type_t stream =
+                                static_cast <audio_stream_type_t>(data.readInt32());
+            audio_session_t session = (audio_session_t)data.readInt32();
+            reply->writeInt32(static_cast <uint32_t>(stopOutput(output,
+                                                                stream,
+                                                                session)));
+            return NO_ERROR;
+        } break;
+
+        case RELEASE_OUTPUT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
+            audio_stream_type_t stream = (audio_stream_type_t)data.readInt32();
+            audio_session_t session = (audio_session_t)data.readInt32();
+            releaseOutput(output, stream, session);
+            return NO_ERROR;
+        } break;
+
+        case GET_INPUT_FOR_ATTR: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_attributes_t attr;
+            data.read(&attr, sizeof(audio_attributes_t));
+            audio_session_t session = (audio_session_t)data.readInt32();
+            pid_t pid = (pid_t)data.readInt32();
+            uid_t uid = (uid_t)data.readInt32();
+            audio_config_base_t config;
+            memset(&config, 0, sizeof(audio_config_base_t));
+            data.read(&config, sizeof(audio_config_base_t));
+            audio_input_flags_t flags = (audio_input_flags_t) data.readInt32();
+            audio_port_handle_t selectedDeviceId = (audio_port_handle_t) data.readInt32();
+            audio_port_handle_t portId = (audio_port_handle_t)data.readInt32();
+            audio_io_handle_t input = AUDIO_IO_HANDLE_NONE;
+            status_t status = getInputForAttr(&attr, &input, session, pid, uid,
+                                              &config,
+                                              flags, selectedDeviceId, &portId);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->writeInt32(input);
+                reply->writeInt32(portId);
+            }
+            return NO_ERROR;
+        } break;
+
+        case START_INPUT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
+            audio_session_t session = static_cast <audio_session_t>(data.readInt32());
+            reply->writeInt32(static_cast <uint32_t>(startInput(input, session)));
+            return NO_ERROR;
+        } break;
+
+        case STOP_INPUT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
+            audio_session_t session = static_cast <audio_session_t>(data.readInt32());
+            reply->writeInt32(static_cast <uint32_t>(stopInput(input, session)));
+            return NO_ERROR;
+        } break;
+
+        case RELEASE_INPUT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
+            audio_session_t session = static_cast <audio_session_t>(data.readInt32());
+            releaseInput(input, session);
+            return NO_ERROR;
+        } break;
+
+        case INIT_STREAM_VOLUME: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_stream_type_t stream =
+                    static_cast <audio_stream_type_t>(data.readInt32());
+            int indexMin = data.readInt32();
+            int indexMax = data.readInt32();
+            reply->writeInt32(static_cast <uint32_t>(initStreamVolume(stream, indexMin,indexMax)));
+            return NO_ERROR;
+        } break;
+
+        case SET_STREAM_VOLUME: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_stream_type_t stream =
+                    static_cast <audio_stream_type_t>(data.readInt32());
+            int index = data.readInt32();
+            audio_devices_t device = static_cast <audio_devices_t>(data.readInt32());
+            reply->writeInt32(static_cast <uint32_t>(setStreamVolumeIndex(stream,
+                                                                          index,
+                                                                          device)));
+            return NO_ERROR;
+        } break;
+
+        case GET_STREAM_VOLUME: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_stream_type_t stream =
+                    static_cast <audio_stream_type_t>(data.readInt32());
+            audio_devices_t device = static_cast <audio_devices_t>(data.readInt32());
+            int index = 0;
+            status_t status = getStreamVolumeIndex(stream, &index, device);
+            reply->writeInt32(index);
+            reply->writeInt32(static_cast <uint32_t>(status));
+            return NO_ERROR;
+        } break;
+
+        case GET_STRATEGY_FOR_STREAM: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_stream_type_t stream =
+                    static_cast <audio_stream_type_t>(data.readInt32());
+            reply->writeInt32(getStrategyForStream(stream));
+            return NO_ERROR;
+        } break;
+
+        case GET_DEVICES_FOR_STREAM: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_stream_type_t stream =
+                    static_cast <audio_stream_type_t>(data.readInt32());
+            reply->writeInt32(static_cast <int>(getDevicesForStream(stream)));
+            return NO_ERROR;
+        } break;
+
+        case GET_OUTPUT_FOR_EFFECT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            effect_descriptor_t desc;
+            data.read(&desc, sizeof(effect_descriptor_t));
+            audio_io_handle_t output = getOutputForEffect(&desc);
+            reply->writeInt32(static_cast <int>(output));
+            return NO_ERROR;
+        } break;
+
+        case REGISTER_EFFECT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            effect_descriptor_t desc;
+            data.read(&desc, sizeof(effect_descriptor_t));
+            audio_io_handle_t io = data.readInt32();
+            uint32_t strategy = data.readInt32();
+            audio_session_t session = (audio_session_t) data.readInt32();
+            int id = data.readInt32();
+            reply->writeInt32(static_cast <int32_t>(registerEffect(&desc,
+                                                                   io,
+                                                                   strategy,
+                                                                   session,
+                                                                   id)));
+            return NO_ERROR;
+        } break;
+
+        case UNREGISTER_EFFECT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            int id = data.readInt32();
+            reply->writeInt32(static_cast <int32_t>(unregisterEffect(id)));
+            return NO_ERROR;
+        } break;
+
+        case SET_EFFECT_ENABLED: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            int id = data.readInt32();
+            bool enabled = static_cast <bool>(data.readInt32());
+            reply->writeInt32(static_cast <int32_t>(setEffectEnabled(id, enabled)));
+            return NO_ERROR;
+        } break;
+
+        case IS_STREAM_ACTIVE: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_stream_type_t stream = (audio_stream_type_t) data.readInt32();
+            uint32_t inPastMs = (uint32_t)data.readInt32();
+            reply->writeInt32( isStreamActive(stream, inPastMs) );
+            return NO_ERROR;
+        } break;
+
+        case IS_STREAM_ACTIVE_REMOTELY: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_stream_type_t stream = (audio_stream_type_t) data.readInt32();
+            uint32_t inPastMs = (uint32_t)data.readInt32();
+            reply->writeInt32( isStreamActiveRemotely(stream, inPastMs) );
+            return NO_ERROR;
+        } break;
+
+        case IS_SOURCE_ACTIVE: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_source_t source = (audio_source_t) data.readInt32();
+            reply->writeInt32( isSourceActive(source));
+            return NO_ERROR;
+        }
+
+        case QUERY_DEFAULT_PRE_PROCESSING: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_session_t audioSession = (audio_session_t) data.readInt32();
+            uint32_t count = data.readInt32();
+            if (count > AudioEffect::kMaxPreProcessing) {
+                count = AudioEffect::kMaxPreProcessing;
+            }
+            uint32_t retCount = count;
+            effect_descriptor_t *descriptors = new effect_descriptor_t[count];
+            status_t status = queryDefaultPreProcessing(audioSession, descriptors, &retCount);
+            reply->writeInt32(status);
+            if (status != NO_ERROR && status != NO_MEMORY) {
+                retCount = 0;
+            }
+            reply->writeInt32(retCount);
+            if (retCount != 0) {
+                if (retCount < count) {
+                    count = retCount;
+                }
+                reply->write(descriptors, sizeof(effect_descriptor_t) * count);
+            }
+            delete[] descriptors;
+            return status;
+        }
+
+        case IS_OFFLOAD_SUPPORTED: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_offload_info_t info;
+            data.read(&info, sizeof(audio_offload_info_t));
+            bool isSupported = isOffloadSupported(info);
+            reply->writeInt32(isSupported);
+            return NO_ERROR;
+        }
+
+        case LIST_AUDIO_PORTS: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_port_role_t role = (audio_port_role_t)data.readInt32();
+            audio_port_type_t type = (audio_port_type_t)data.readInt32();
+            unsigned int numPortsReq = data.readInt32();
+            if (numPortsReq > MAX_ITEMS_PER_LIST) {
+                numPortsReq = MAX_ITEMS_PER_LIST;
+            }
+            unsigned int numPorts = numPortsReq;
+            struct audio_port *ports =
+                    (struct audio_port *)calloc(numPortsReq, sizeof(struct audio_port));
+            if (ports == NULL) {
+                reply->writeInt32(NO_MEMORY);
+                reply->writeInt32(0);
+                return NO_ERROR;
+            }
+            unsigned int generation;
+            status_t status = listAudioPorts(role, type, &numPorts, ports, &generation);
+            reply->writeInt32(status);
+            reply->writeInt32(numPorts);
+
+            if (status == NO_ERROR) {
+                if (numPortsReq > numPorts) {
+                    numPortsReq = numPorts;
+                }
+                reply->write(ports, numPortsReq * sizeof(struct audio_port));
+                reply->writeInt32(generation);
+            }
+            free(ports);
+            return NO_ERROR;
+        }
+
+        case GET_AUDIO_PORT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            struct audio_port port = {};
+            if (data.read(&port, sizeof(struct audio_port)) != NO_ERROR) {
+                ALOGE("b/23912202");
+            }
+            status_t status = getAudioPort(&port);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->write(&port, sizeof(struct audio_port));
+            }
+            return NO_ERROR;
+        }
+
+        case CREATE_AUDIO_PATCH: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            struct audio_patch patch;
+            data.read(&patch, sizeof(struct audio_patch));
+            audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE;
+            if (data.read(&handle, sizeof(audio_patch_handle_t)) != NO_ERROR) {
+                ALOGE("b/23912202");
+            }
+            status_t status = createAudioPatch(&patch, &handle);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->write(&handle, sizeof(audio_patch_handle_t));
+            }
+            return NO_ERROR;
+        }
+
+        case RELEASE_AUDIO_PATCH: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_patch_handle_t handle;
+            data.read(&handle, sizeof(audio_patch_handle_t));
+            status_t status = releaseAudioPatch(handle);
+            reply->writeInt32(status);
+            return NO_ERROR;
+        }
+
+        case LIST_AUDIO_PATCHES: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            unsigned int numPatchesReq = data.readInt32();
+            if (numPatchesReq > MAX_ITEMS_PER_LIST) {
+                numPatchesReq = MAX_ITEMS_PER_LIST;
+            }
+            unsigned int numPatches = numPatchesReq;
+            struct audio_patch *patches =
+                    (struct audio_patch *)calloc(numPatchesReq,
+                                                 sizeof(struct audio_patch));
+            if (patches == NULL) {
+                reply->writeInt32(NO_MEMORY);
+                reply->writeInt32(0);
+                return NO_ERROR;
+            }
+            unsigned int generation;
+            status_t status = listAudioPatches(&numPatches, patches, &generation);
+            reply->writeInt32(status);
+            reply->writeInt32(numPatches);
+            if (status == NO_ERROR) {
+                if (numPatchesReq > numPatches) {
+                    numPatchesReq = numPatches;
+                }
+                reply->write(patches, numPatchesReq * sizeof(struct audio_patch));
+                reply->writeInt32(generation);
+            }
+            free(patches);
+            return NO_ERROR;
+        }
+
+        case SET_AUDIO_PORT_CONFIG: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            struct audio_port_config config;
+            data.read(&config, sizeof(struct audio_port_config));
+            status_t status = setAudioPortConfig(&config);
+            reply->writeInt32(status);
+            return NO_ERROR;
+        }
+
+        case REGISTER_CLIENT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>(
+                    data.readStrongBinder());
+            registerClient(client);
+            return NO_ERROR;
+        } break;
+
+        case SET_AUDIO_PORT_CALLBACK_ENABLED: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            setAudioPortCallbacksEnabled(data.readInt32() == 1);
+            return NO_ERROR;
+        } break;
+
+        case ACQUIRE_SOUNDTRIGGER_SESSION: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>(
+                    data.readStrongBinder());
+            audio_session_t session = AUDIO_SESSION_NONE;
+            audio_io_handle_t ioHandle = AUDIO_IO_HANDLE_NONE;
+            audio_devices_t device = AUDIO_DEVICE_NONE;
+            status_t status = acquireSoundTriggerSession(&session, &ioHandle, &device);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->writeInt32(session);
+                reply->writeInt32(ioHandle);
+                reply->writeInt32(device);
+            }
+            return NO_ERROR;
+        } break;
+
+        case RELEASE_SOUNDTRIGGER_SESSION: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>(
+                    data.readStrongBinder());
+            audio_session_t session = (audio_session_t)data.readInt32();
+            status_t status = releaseSoundTriggerSession(session);
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+
+        case GET_PHONE_STATE: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            reply->writeInt32((int32_t)getPhoneState());
+            return NO_ERROR;
+        } break;
+
+        case REGISTER_POLICY_MIXES: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            bool registration = data.readInt32() == 1;
+            Vector<AudioMix> mixes;
+            size_t size = (size_t)data.readInt32();
+            if (size > MAX_MIXES_PER_POLICY) {
+                size = MAX_MIXES_PER_POLICY;
+            }
+            for (size_t i = 0; i < size; i++) {
+                AudioMix mix;
+                if (mix.readFromParcel((Parcel*)&data) == NO_ERROR) {
+                    mixes.add(mix);
+                }
+            }
+            status_t status = registerPolicyMixes(mixes, registration);
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+
+        case START_AUDIO_SOURCE: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            struct audio_port_config source;
+            data.read(&source, sizeof(struct audio_port_config));
+            audio_attributes_t attributes;
+            data.read(&attributes, sizeof(audio_attributes_t));
+            audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE;
+            status_t status = startAudioSource(&source, &attributes, &handle);
+            reply->writeInt32(status);
+            reply->writeInt32(handle);
+            return NO_ERROR;
+        } break;
+
+        case STOP_AUDIO_SOURCE: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_patch_handle_t handle = (audio_patch_handle_t) data.readInt32();
+            status_t status = stopAudioSource(handle);
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+
+        case SET_MASTER_MONO: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            bool mono = static_cast<bool>(data.readInt32());
+            status_t status = setMasterMono(mono);
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+
+        case GET_MASTER_MONO: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            bool mono;
+            status_t status = getMasterMono(&mono);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->writeInt32(static_cast<int32_t>(mono));
+            }
+            return NO_ERROR;
+        } break;
+
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libaudioclient/IAudioPolicyServiceClient.cpp b/media/libaudioclient/IAudioPolicyServiceClient.cpp
new file mode 100644
index 0000000..98a0521
--- /dev/null
+++ b/media/libaudioclient/IAudioPolicyServiceClient.cpp
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "IAudioPolicyServiceClient"
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+
+#include <media/IAudioPolicyServiceClient.h>
+#include <media/AudioSystem.h>
+
+namespace android {
+
+enum {
+    PORT_LIST_UPDATE = IBinder::FIRST_CALL_TRANSACTION,
+    PATCH_LIST_UPDATE,
+    MIX_STATE_UPDATE,
+    RECORDING_CONFIGURATION_UPDATE
+};
+
+// ----------------------------------------------------------------------
+inline void readAudioConfigBaseFromParcel(const Parcel& data, audio_config_base_t *config) {
+    config->sample_rate = data.readUint32();
+    config->channel_mask = (audio_channel_mask_t) data.readInt32();
+    config->format = (audio_format_t) data.readInt32();
+}
+
+inline void writeAudioConfigBaseToParcel(Parcel& data, const audio_config_base_t *config)
+{
+    data.writeUint32(config->sample_rate);
+    data.writeInt32((int32_t) config->channel_mask);
+    data.writeInt32((int32_t) config->format);
+}
+
+// ----------------------------------------------------------------------
+class BpAudioPolicyServiceClient : public BpInterface<IAudioPolicyServiceClient>
+{
+public:
+    explicit BpAudioPolicyServiceClient(const sp<IBinder>& impl)
+        : BpInterface<IAudioPolicyServiceClient>(impl)
+    {
+    }
+
+    void onAudioPortListUpdate()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
+        remote()->transact(PORT_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    void onAudioPatchListUpdate()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
+        remote()->transact(PATCH_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
+        data.writeString8(regId);
+        data.writeInt32(state);
+        remote()->transact(MIX_STATE_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    void onRecordingConfigurationUpdate(int event, audio_session_t session,
+            audio_source_t source, const audio_config_base_t *clientConfig,
+            const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
+        data.writeInt32(event);
+        data.writeInt32(session);
+        data.writeInt32(source);
+        writeAudioConfigBaseToParcel(data, clientConfig);
+        writeAudioConfigBaseToParcel(data, deviceConfig);
+        data.writeInt32(patchHandle);
+        remote()->transact(RECORDING_CONFIGURATION_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+};
+
+IMPLEMENT_META_INTERFACE(AudioPolicyServiceClient, "android.media.IAudioPolicyServiceClient");
+
+// ----------------------------------------------------------------------
+
+status_t BnAudioPolicyServiceClient::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+    case PORT_LIST_UPDATE: {
+            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
+            onAudioPortListUpdate();
+            return NO_ERROR;
+        } break;
+    case PATCH_LIST_UPDATE: {
+            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
+            onAudioPatchListUpdate();
+            return NO_ERROR;
+        } break;
+    case MIX_STATE_UPDATE: {
+            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
+            String8 regId = data.readString8();
+            int32_t state = data.readInt32();
+            onDynamicPolicyMixStateUpdate(regId, state);
+            return NO_ERROR;
+        } break;
+    case RECORDING_CONFIGURATION_UPDATE: {
+            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
+            int event = (int) data.readInt32();
+            audio_session_t session = (audio_session_t) data.readInt32();
+            audio_source_t source = (audio_source_t) data.readInt32();
+            audio_config_base_t clientConfig;
+            audio_config_base_t deviceConfig;
+            readAudioConfigBaseFromParcel(data, &clientConfig);
+            readAudioConfigBaseFromParcel(data, &deviceConfig);
+            audio_patch_handle_t patchHandle = (audio_patch_handle_t) data.readInt32();
+            onRecordingConfigurationUpdate(event, session, source, &clientConfig, &deviceConfig,
+                    patchHandle);
+            return NO_ERROR;
+        } break;
+    default:
+        return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libaudioclient/IAudioRecord.cpp b/media/libaudioclient/IAudioRecord.cpp
new file mode 100644
index 0000000..1331c0d
--- /dev/null
+++ b/media/libaudioclient/IAudioRecord.cpp
@@ -0,0 +1,94 @@
+/*
+**
+** Copyright 2007, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#define LOG_TAG "IAudioRecord"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+
+#include <media/IAudioRecord.h>
+
+namespace android {
+
+enum {
+    UNUSED_WAS_GET_CBLK = IBinder::FIRST_CALL_TRANSACTION,
+    START,
+    STOP
+};
+
+class BpAudioRecord : public BpInterface<IAudioRecord>
+{
+public:
+    explicit BpAudioRecord(const sp<IBinder>& impl)
+        : BpInterface<IAudioRecord>(impl)
+    {
+    }
+
+    virtual status_t start(int /*AudioSystem::sync_event_t*/ event, audio_session_t triggerSession)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioRecord::getInterfaceDescriptor());
+        data.writeInt32(event);
+        data.writeInt32(triggerSession);
+        status_t status = remote()->transact(START, data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32();
+        } else {
+            ALOGW("start() error: %s", strerror(-status));
+        }
+        return status;
+    }
+
+    virtual void stop()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioRecord::getInterfaceDescriptor());
+        remote()->transact(STOP, data, &reply);
+    }
+
+};
+
+IMPLEMENT_META_INTERFACE(AudioRecord, "android.media.IAudioRecord");
+
+// ----------------------------------------------------------------------
+
+status_t BnAudioRecord::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+        case START: {
+            CHECK_INTERFACE(IAudioRecord, data, reply);
+            int /*AudioSystem::sync_event_t*/ event = data.readInt32();
+            audio_session_t triggerSession = (audio_session_t) data.readInt32();
+            reply->writeInt32(start(event, triggerSession));
+            return NO_ERROR;
+        } break;
+        case STOP: {
+            CHECK_INTERFACE(IAudioRecord, data, reply);
+            stop();
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+} // namespace android
diff --git a/media/libaudioclient/IAudioTrack.cpp b/media/libaudioclient/IAudioTrack.cpp
new file mode 100644
index 0000000..79e864d
--- /dev/null
+++ b/media/libaudioclient/IAudioTrack.cpp
@@ -0,0 +1,296 @@
+/*
+**
+** Copyright 2007, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#define LOG_TAG "IAudioTrack"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+
+#include <media/IAudioTrack.h>
+
+namespace android {
+
+enum {
+    GET_CBLK = IBinder::FIRST_CALL_TRANSACTION,
+    START,
+    STOP,
+    FLUSH,
+    RESERVED, // was MUTE
+    PAUSE,
+    ATTACH_AUX_EFFECT,
+    SET_PARAMETERS,
+    GET_TIMESTAMP,
+    SIGNAL,
+    APPLY_VOLUME_SHAPER,
+    GET_VOLUME_SHAPER_STATE,
+};
+
+class BpAudioTrack : public BpInterface<IAudioTrack>
+{
+public:
+    explicit BpAudioTrack(const sp<IBinder>& impl)
+        : BpInterface<IAudioTrack>(impl)
+    {
+    }
+
+    virtual sp<IMemory> getCblk() const
+    {
+        Parcel data, reply;
+        sp<IMemory> cblk;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_CBLK, data, &reply);
+        if (status == NO_ERROR) {
+            cblk = interface_cast<IMemory>(reply.readStrongBinder());
+            if (cblk != 0 && cblk->pointer() == NULL) {
+                cblk.clear();
+            }
+        }
+        return cblk;
+    }
+
+    virtual status_t start()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        status_t status = remote()->transact(START, data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32();
+        } else {
+            ALOGW("start() error: %s", strerror(-status));
+        }
+        return status;
+    }
+
+    virtual void stop()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        remote()->transact(STOP, data, &reply);
+    }
+
+    virtual void flush()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        remote()->transact(FLUSH, data, &reply);
+    }
+
+    virtual void pause()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        remote()->transact(PAUSE, data, &reply);
+    }
+
+    virtual status_t attachAuxEffect(int effectId)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        data.writeInt32(effectId);
+        status_t status = remote()->transact(ATTACH_AUX_EFFECT, data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32();
+        } else {
+            ALOGW("attachAuxEffect() error: %s", strerror(-status));
+        }
+        return status;
+    }
+
+    virtual status_t setParameters(const String8& keyValuePairs) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        data.writeString8(keyValuePairs);
+        status_t status = remote()->transact(SET_PARAMETERS, data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32();
+        }
+        return status;
+    }
+
+    virtual status_t getTimestamp(AudioTimestamp& timestamp) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_TIMESTAMP, data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32();
+            if (status == NO_ERROR) {
+                timestamp.mPosition = reply.readInt32();
+                timestamp.mTime.tv_sec = reply.readInt32();
+                timestamp.mTime.tv_nsec = reply.readInt32();
+            }
+        }
+        return status;
+    }
+
+    virtual void signal() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        remote()->transact(SIGNAL, data, &reply);
+    }
+
+    virtual VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration>& configuration,
+            const sp<VolumeShaper::Operation>& operation) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+
+        status_t status = configuration.get() == nullptr
+                ? data.writeInt32(0)
+                :  data.writeInt32(1)
+                    ?: configuration->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        status = operation.get() == nullptr
+                ? status = data.writeInt32(0)
+                : data.writeInt32(1)
+                    ?: operation->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        int32_t remoteVolumeShaperStatus;
+        status = remote()->transact(APPLY_VOLUME_SHAPER, data, &reply)
+                 ?: reply.readInt32(&remoteVolumeShaperStatus);
+
+        return VolumeShaper::Status(status ?: remoteVolumeShaperStatus);
+    }
+
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+
+        data.writeInt32(id);
+        status_t status = remote()->transact(GET_VOLUME_SHAPER_STATE, data, &reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        sp<VolumeShaper::State> state = new VolumeShaper::State;
+        status = state->readFromParcel(reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        return state;
+    }
+};
+
+IMPLEMENT_META_INTERFACE(AudioTrack, "android.media.IAudioTrack");
+
+// ----------------------------------------------------------------------
+
+status_t BnAudioTrack::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+        case GET_CBLK: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            reply->writeStrongBinder(IInterface::asBinder(getCblk()));
+            return NO_ERROR;
+        } break;
+        case START: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            reply->writeInt32(start());
+            return NO_ERROR;
+        } break;
+        case STOP: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            stop();
+            return NO_ERROR;
+        } break;
+        case FLUSH: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            flush();
+            return NO_ERROR;
+        } break;
+        case PAUSE: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            pause();
+            return NO_ERROR;
+        }
+        case ATTACH_AUX_EFFECT: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            reply->writeInt32(attachAuxEffect(data.readInt32()));
+            return NO_ERROR;
+        } break;
+        case SET_PARAMETERS: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            String8 keyValuePairs(data.readString8());
+            reply->writeInt32(setParameters(keyValuePairs));
+            return NO_ERROR;
+        } break;
+        case GET_TIMESTAMP: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            AudioTimestamp timestamp;
+            status_t status = getTimestamp(timestamp);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->writeInt32(timestamp.mPosition);
+                reply->writeInt32(timestamp.mTime.tv_sec);
+                reply->writeInt32(timestamp.mTime.tv_nsec);
+            }
+            return NO_ERROR;
+        } break;
+        case SIGNAL: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            signal();
+            return NO_ERROR;
+        } break;
+        case APPLY_VOLUME_SHAPER: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            sp<VolumeShaper::Configuration> configuration;
+            sp<VolumeShaper::Operation> operation;
+
+            int32_t present;
+            status_t status = data.readInt32(&present);
+            if (status == NO_ERROR && present != 0) {
+                configuration = new VolumeShaper::Configuration();
+                status = configuration->readFromParcel(data);
+            }
+            status = status ?: data.readInt32(&present);
+            if (status == NO_ERROR && present != 0) {
+                operation = new VolumeShaper::Operation();
+                status = operation->readFromParcel(data);
+            }
+            if (status == NO_ERROR) {
+                status = (status_t)applyVolumeShaper(configuration, operation);
+            }
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+        case GET_VOLUME_SHAPER_STATE: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            int id;
+            status_t status = data.readInt32(&id);
+            if (status == NO_ERROR) {
+                sp<VolumeShaper::State> state = getVolumeShaperState(id);
+                if (state.get() != nullptr) {
+                     status = state->writeToParcel(reply);
+                }
+            }
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+} // namespace android
diff --git a/media/libaudioclient/IEffect.cpp b/media/libaudioclient/IEffect.cpp
new file mode 100644
index 0000000..ce72dae
--- /dev/null
+++ b/media/libaudioclient/IEffect.cpp
@@ -0,0 +1,229 @@
+/*
+**
+** Copyright 2010, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "IEffect"
+#include <utils/Log.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <binder/Parcel.h>
+#include <media/IEffect.h>
+
+namespace android {
+
+// Maximum command/reply size expected
+#define EFFECT_PARAM_SIZE_MAX       65536
+
+enum {
+    ENABLE = IBinder::FIRST_CALL_TRANSACTION,
+    DISABLE,
+    COMMAND,
+    DISCONNECT,
+    GET_CBLK
+};
+
+class BpEffect: public BpInterface<IEffect>
+{
+public:
+    explicit BpEffect(const sp<IBinder>& impl)
+        : BpInterface<IEffect>(impl)
+    {
+    }
+
+    status_t enable()
+    {
+        ALOGV("enable");
+        Parcel data, reply;
+        data.writeInterfaceToken(IEffect::getInterfaceDescriptor());
+        remote()->transact(ENABLE, data, &reply);
+        return reply.readInt32();
+    }
+
+    status_t disable()
+    {
+        ALOGV("disable");
+        Parcel data, reply;
+        data.writeInterfaceToken(IEffect::getInterfaceDescriptor());
+        remote()->transact(DISABLE, data, &reply);
+        return reply.readInt32();
+    }
+
+    status_t command(uint32_t cmdCode,
+                     uint32_t cmdSize,
+                     void *pCmdData,
+                     uint32_t *pReplySize,
+                     void *pReplyData)
+    {
+        ALOGV("command");
+        Parcel data, reply;
+        data.writeInterfaceToken(IEffect::getInterfaceDescriptor());
+        data.writeInt32(cmdCode);
+        int size = cmdSize;
+        if (pCmdData == NULL) {
+            size = 0;
+        }
+        data.writeInt32(size);
+        if (size) {
+            data.write(pCmdData, size);
+        }
+        if (pReplySize == NULL) {
+            size = 0;
+        } else {
+            size = *pReplySize;
+        }
+        data.writeInt32(size);
+
+        status_t status = remote()->transact(COMMAND, data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32();
+        }
+        if (status != NO_ERROR) {
+            if (pReplySize != NULL)
+                *pReplySize = 0;
+            return status;
+        }
+
+        size = reply.readInt32();
+        if (size != 0 && pReplyData != NULL && pReplySize != NULL) {
+            reply.read(pReplyData, size);
+            *pReplySize = size;
+        }
+        return status;
+    }
+
+    void disconnect()
+    {
+        ALOGV("disconnect");
+        Parcel data, reply;
+        data.writeInterfaceToken(IEffect::getInterfaceDescriptor());
+        remote()->transact(DISCONNECT, data, &reply);
+        return;
+    }
+
+    virtual sp<IMemory> getCblk() const
+    {
+        Parcel data, reply;
+        sp<IMemory> cblk;
+        data.writeInterfaceToken(IEffect::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_CBLK, data, &reply);
+        if (status == NO_ERROR) {
+            cblk = interface_cast<IMemory>(reply.readStrongBinder());
+            if (cblk != 0 && cblk->pointer() == NULL) {
+                cblk.clear();
+            }
+        }
+        return cblk;
+    }
+ };
+
+IMPLEMENT_META_INTERFACE(Effect, "android.media.IEffect");
+
+// ----------------------------------------------------------------------
+
+status_t BnEffect::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+        case ENABLE: {
+            ALOGV("ENABLE");
+            CHECK_INTERFACE(IEffect, data, reply);
+            reply->writeInt32(enable());
+            return NO_ERROR;
+        } break;
+
+        case DISABLE: {
+            ALOGV("DISABLE");
+            CHECK_INTERFACE(IEffect, data, reply);
+            reply->writeInt32(disable());
+            return NO_ERROR;
+        } break;
+
+        case COMMAND: {
+            ALOGV("COMMAND");
+            CHECK_INTERFACE(IEffect, data, reply);
+            uint32_t cmdCode = data.readInt32();
+            uint32_t cmdSize = data.readInt32();
+            char *cmd = NULL;
+            if (cmdSize) {
+                if (cmdSize > EFFECT_PARAM_SIZE_MAX) {
+                    reply->writeInt32(NO_MEMORY);
+                    return NO_ERROR;
+                }
+                cmd = (char *)calloc(cmdSize, 1);
+                if (cmd == NULL) {
+                    reply->writeInt32(NO_MEMORY);
+                    return NO_ERROR;
+                }
+                data.read(cmd, cmdSize);
+            }
+            uint32_t replySize = data.readInt32();
+            uint32_t replySz = replySize;
+            char *resp = NULL;
+            if (replySize) {
+                if (replySize > EFFECT_PARAM_SIZE_MAX) {
+                    free(cmd);
+                    reply->writeInt32(NO_MEMORY);
+                    return NO_ERROR;
+                }
+                resp = (char *)calloc(replySize, 1);
+                if (resp == NULL) {
+                    free(cmd);
+                    reply->writeInt32(NO_MEMORY);
+                    return NO_ERROR;
+                }
+            }
+            status_t status = command(cmdCode, cmdSize, cmd, &replySz, resp);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                if (replySz < replySize) {
+                    replySize = replySz;
+                }
+                reply->writeInt32(replySize);
+                if (replySize) {
+                    reply->write(resp, replySize);
+                }
+            }
+            if (cmd) {
+                free(cmd);
+            }
+            if (resp) {
+                free(resp);
+            }
+            return NO_ERROR;
+        } break;
+
+        case DISCONNECT: {
+            ALOGV("DISCONNECT");
+            CHECK_INTERFACE(IEffect, data, reply);
+            disconnect();
+            return NO_ERROR;
+        } break;
+
+        case GET_CBLK: {
+            CHECK_INTERFACE(IEffect, data, reply);
+            reply->writeStrongBinder(IInterface::asBinder(getCblk()));
+            return NO_ERROR;
+        } break;
+
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libaudioclient/IEffectClient.cpp b/media/libaudioclient/IEffectClient.cpp
new file mode 100644
index 0000000..3f2c67d
--- /dev/null
+++ b/media/libaudioclient/IEffectClient.cpp
@@ -0,0 +1,144 @@
+/*
+**
+** Copyright 2010, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "IEffectClient"
+#include <utils/Log.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <media/IEffectClient.h>
+
+namespace android {
+
+enum {
+    CONTROL_STATUS_CHANGED = IBinder::FIRST_CALL_TRANSACTION,
+    ENABLE_STATUS_CHANGED,
+    COMMAND_EXECUTED
+};
+
+class BpEffectClient: public BpInterface<IEffectClient>
+{
+public:
+    explicit BpEffectClient(const sp<IBinder>& impl)
+        : BpInterface<IEffectClient>(impl)
+    {
+    }
+
+    void controlStatusChanged(bool controlGranted)
+    {
+        ALOGV("controlStatusChanged");
+        Parcel data, reply;
+        data.writeInterfaceToken(IEffectClient::getInterfaceDescriptor());
+        data.writeInt32((uint32_t)controlGranted);
+        remote()->transact(CONTROL_STATUS_CHANGED, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    void enableStatusChanged(bool enabled)
+    {
+        ALOGV("enableStatusChanged");
+        Parcel data, reply;
+        data.writeInterfaceToken(IEffectClient::getInterfaceDescriptor());
+        data.writeInt32((uint32_t)enabled);
+        remote()->transact(ENABLE_STATUS_CHANGED, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    void commandExecuted(uint32_t cmdCode,
+                         uint32_t cmdSize,
+                         void *pCmdData,
+                         uint32_t replySize,
+                         void *pReplyData)
+    {
+        ALOGV("commandExecuted");
+        Parcel data, reply;
+        data.writeInterfaceToken(IEffectClient::getInterfaceDescriptor());
+        data.writeInt32(cmdCode);
+        int size = cmdSize;
+        if (pCmdData == NULL) {
+            size = 0;
+        }
+        data.writeInt32(size);
+        if (size) {
+            data.write(pCmdData, size);
+        }
+        size = replySize;
+        if (pReplyData == NULL) {
+            size = 0;
+        }
+        data.writeInt32(size);
+        if (size) {
+            data.write(pReplyData, size);
+        }
+        remote()->transact(COMMAND_EXECUTED, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+};
+
+IMPLEMENT_META_INTERFACE(EffectClient, "android.media.IEffectClient");
+
+// ----------------------------------------------------------------------
+
+status_t BnEffectClient::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+        case CONTROL_STATUS_CHANGED: {
+            ALOGV("CONTROL_STATUS_CHANGED");
+            CHECK_INTERFACE(IEffectClient, data, reply);
+            bool hasControl = (bool)data.readInt32();
+            controlStatusChanged(hasControl);
+            return NO_ERROR;
+        } break;
+        case ENABLE_STATUS_CHANGED: {
+            ALOGV("ENABLE_STATUS_CHANGED");
+            CHECK_INTERFACE(IEffectClient, data, reply);
+            bool enabled = (bool)data.readInt32();
+            enableStatusChanged(enabled);
+            return NO_ERROR;
+        } break;
+        case COMMAND_EXECUTED: {
+            ALOGV("COMMAND_EXECUTED");
+            CHECK_INTERFACE(IEffectClient, data, reply);
+            uint32_t cmdCode = data.readInt32();
+            uint32_t cmdSize = data.readInt32();
+            char *cmd = NULL;
+            if (cmdSize) {
+                cmd = (char *)malloc(cmdSize);
+                data.read(cmd, cmdSize);
+            }
+            uint32_t replySize = data.readInt32();
+            char *resp = NULL;
+            if (replySize) {
+                resp = (char *)malloc(replySize);
+                data.read(resp, replySize);
+            }
+            commandExecuted(cmdCode, cmdSize, cmd, replySize, resp);
+            if (cmd) {
+                free(cmd);
+            }
+            if (resp) {
+                free(resp);
+            }
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libaudioclient/PlayerBase.cpp b/media/libaudioclient/PlayerBase.cpp
new file mode 100644
index 0000000..cbef1b3
--- /dev/null
+++ b/media/libaudioclient/PlayerBase.cpp
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/IServiceManager.h>
+#include <media/PlayerBase.h>
+
+#define max(a, b) ((a) > (b) ? (a) : (b))
+#define min(a, b) ((a) < (b) ? (a) : (b))
+
+namespace android {
+
+//--------------------------------------------------------------------------------------------------
+PlayerBase::PlayerBase() : BnPlayer(),
+        mPanMultiplierL(1.0f), mPanMultiplierR(1.0f),
+        mVolumeMultiplierL(1.0f), mVolumeMultiplierR(1.0f),
+        mPIId(PLAYER_PIID_INVALID), mLastReportedEvent(PLAYER_STATE_UNKNOWN)
+{
+    ALOGD("PlayerBase::PlayerBase()");
+    // use checkService() to avoid blocking if audio service is not up yet
+    sp<IBinder> binder = defaultServiceManager()->checkService(String16("audio"));
+    if (binder == 0) {
+        ALOGE("PlayerBase(): binding to audio service failed, service up?");
+    } else {
+        mAudioManager = interface_cast<IAudioManager>(binder);
+    }
+}
+
+
+PlayerBase::~PlayerBase() {
+    ALOGD("PlayerBase::~PlayerBase()");
+    baseDestroy();
+}
+
+void PlayerBase::init(player_type_t playerType, audio_usage_t usage) {
+    if (mAudioManager == 0) {
+                ALOGE("AudioPlayer realize: no audio service, player will not be registered");
+    } else {
+        mPIId = mAudioManager->trackPlayer(playerType, usage, AUDIO_CONTENT_TYPE_UNKNOWN, this);
+    }
+}
+
+void PlayerBase::baseDestroy() {
+    serviceReleasePlayer();
+    if (mAudioManager != 0) {
+        mAudioManager.clear();
+    }
+}
+
+//------------------------------------------------------------------------------
+void PlayerBase::servicePlayerEvent(player_state_t event) {
+    if (mAudioManager != 0) {
+        // only report state change
+        Mutex::Autolock _l(mPlayerStateLock);
+        if (event != mLastReportedEvent
+                && mPIId != PLAYER_PIID_INVALID) {
+            mLastReportedEvent = event;
+            mAudioManager->playerEvent(mPIId, event);
+        }
+    }
+}
+
+void PlayerBase::serviceReleasePlayer() {
+    if (mAudioManager != 0
+            && mPIId != PLAYER_PIID_INVALID) {
+        mAudioManager->releasePlayer(mPIId);
+    }
+}
+
+//FIXME temporary method while some AudioTrack state is outside of this class
+void PlayerBase::reportEvent(player_state_t event) {
+    servicePlayerEvent(event);
+}
+
+status_t PlayerBase::startWithStatus() {
+    status_t status = playerStart();
+    if (status == NO_ERROR) {
+        ALOGD("PlayerBase::start() from IPlayer");
+        servicePlayerEvent(PLAYER_STATE_STARTED);
+    } else {
+        ALOGD("PlayerBase::start() no AudioTrack to start from IPlayer");
+    }
+    return status;
+}
+
+//------------------------------------------------------------------------------
+// Implementation of IPlayer
+void PlayerBase::start() {
+    (void)startWithStatus();
+}
+
+void PlayerBase::pause() {
+    if (playerPause() == NO_ERROR) {
+        ALOGD("PlayerBase::pause() from IPlayer");
+        servicePlayerEvent(PLAYER_STATE_PAUSED);
+    } else {
+        ALOGD("PlayerBase::pause() no AudioTrack to pause from IPlayer");
+    }
+}
+
+
+void PlayerBase::stop() {
+    if (playerStop() == NO_ERROR) {
+        ALOGD("PlayerBase::stop() from IPlayer");
+        servicePlayerEvent(PLAYER_STATE_STOPPED);
+    } else {
+        ALOGD("PlayerBase::stop() no AudioTrack to stop from IPlayer");
+    }
+}
+
+void PlayerBase::setVolume(float vol) {
+    {
+        Mutex::Autolock _l(mSettingsLock);
+        mVolumeMultiplierL = vol;
+        mVolumeMultiplierR = vol;
+    }
+    if (playerSetVolume() == NO_ERROR) {
+        ALOGD("PlayerBase::setVolume() from IPlayer");
+    } else {
+        ALOGD("PlayerBase::setVolume() no AudioTrack for volume control from IPlayer");
+    }
+}
+
+void PlayerBase::setPan(float pan) {
+    {
+        Mutex::Autolock _l(mSettingsLock);
+        pan = min(max(-1.0f, pan), 1.0f);
+        if (pan >= 0.0f) {
+            mPanMultiplierL = 1.0f - pan;
+            mPanMultiplierR = 1.0f;
+        } else {
+            mPanMultiplierL = 1.0f;
+            mPanMultiplierR = 1.0f + pan;
+        }
+    }
+    if (playerSetVolume() == NO_ERROR) {
+        ALOGD("PlayerBase::setPan() from IPlayer");
+    } else {
+        ALOGD("PlayerBase::setPan() no AudioTrack for volume control from IPlayer");
+    }
+}
+
+void PlayerBase::setStartDelayMs(int32_t delayMs __unused) {
+    ALOGW("setStartDelay() is not supported");
+}
+
+void PlayerBase::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration  __unused,
+        const sp<VolumeShaper::Operation>& operation __unused) {
+    ALOGW("applyVolumeShaper() is not supported");
+}
+
+status_t PlayerBase::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    return BnPlayer::onTransact(code, data, reply, flags);
+}
+
+} // namespace android
diff --git a/media/libaudioclient/ToneGenerator.cpp b/media/libaudioclient/ToneGenerator.cpp
new file mode 100644
index 0000000..9bc2594
--- /dev/null
+++ b/media/libaudioclient/ToneGenerator.cpp
@@ -0,0 +1,1656 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ToneGenerator"
+
+#include <math.h>
+#include <utils/Log.h>
+#include <cutils/properties.h>
+#include "media/ToneGenerator.h"
+
+
+namespace android {
+
+
+// Descriptors for all available tones (See ToneGenerator::ToneDescriptor class declaration for details)
+const ToneGenerator::ToneDescriptor ToneGenerator::sToneDescriptors[] = {
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1336, 941, 0 }, 0, 0},
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_0
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1209, 697, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_1
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1336, 697, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_2
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1477, 697, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_3
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1209, 770, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_4
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1336, 770, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_5
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1477, 770, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_6
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1209, 852, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_7
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1336, 852, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_8
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1477, 852, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_9
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1209, 941, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_S
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1477, 941, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_P
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1633, 697, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_A
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1633, 770, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                             // TONE_DTMF_B
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1633, 852, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_C
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1633, 941, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_DTMF_D
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 425, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_SUP_DIAL
+        { .segments = { { .duration = 500 , .waveFreq = { 425, 0 }, 0, 0},
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0},
+                           { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_SUP_BUSY
+        { .segments = { { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_SUP_CONGESTION
+        { .segments = { { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                              // TONE_SUP_RADIO_ACK
+        { .segments = { { .duration = 200, .waveFreq = { 425, 0 }, 0, 0},
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0},
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 2,
+          .repeatSegment = 0 },                              // TONE_SUP_RADIO_NOTAVAIL
+        { .segments = { { .duration = 330, .waveFreq = { 950, 1400, 1800, 0 }, 0, 0},
+                        { .duration = 1000, .waveFreq = { 0 }, 0, 0},
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_SUP_ERROR
+        { .segments = { { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
+                        { .duration = 600, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
+                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_SUP_CALL_WAITING
+        { .segments = { { .duration = 1000, .waveFreq = { 425, 0 }, 0, 0 },
+                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_SUP_RINGTONE
+        { .segments = { { .duration = 40, .waveFreq = { 400, 1200, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                              // TONE_PROP_BEEP
+        { .segments = { { .duration = 100, .waveFreq = { 1200, 0 }, 0, 0 },
+                        { .duration = 100, .waveFreq = { 0 }, 0, 0  },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 1,
+          .repeatSegment = 0 },                              // TONE_PROP_ACK
+        { .segments = { { .duration = 400, .waveFreq = { 300, 400, 500, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                              // TONE_PROP_NACK
+        { .segments = { { .duration = 200, .waveFreq = { 400, 1200, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                              // TONE_PROP_PROMPT
+        { .segments = { { .duration = 40, .waveFreq = { 400, 1200, 0 }, 0, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 40, .waveFreq = { 400, 1200, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                             // TONE_PROP_BEEP2
+        { .segments = { { .duration = 250, .waveFreq = { 440, 0 }, 0, 0 },
+                        { .duration = 250, .waveFreq = { 620, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_SUP_INTERCEPT
+        { .segments = { { .duration = 250, .waveFreq = { 440, 0 }, 0, 0 },
+                        { .duration = 250, .waveFreq = { 620, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 7,
+          .repeatSegment = 0 },                             // TONE_SUP_INTERCEPT_ABBREV
+        { .segments = { { .duration = 250, .waveFreq = { 480, 620, 0 }, 0, 0 },
+                        { .duration = 250, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 7,
+          .repeatSegment = 0 },                             // TONE_SUP_CONGESTION_ABBREV
+        { .segments = { { .duration = 100, .waveFreq = { 350, 440, 0 }, 0, 0 },
+                        { .duration = 100, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 2,
+          .repeatSegment = 0 },                             // TONE_SUP_CONFIRM
+        { .segments = { { .duration = 100, .waveFreq = { 480, 0 }, 0, 0 },
+                        { .duration = 100, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 3,
+          .repeatSegment = 0 },                              // TONE_SUP_PIP
+        { .segments = {{ .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 425, 0 }, 0, 0},
+                       { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_CDMA_DIAL_TONE_LITE
+        { .segments = { { .duration = 2000, .waveFreq = { 440, 480, 0 }, 0, 0 },
+                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_CDMA_NETWORK_USA_RINGBACK
+        { .segments = { { .duration = 250, .waveFreq = { 440, 0 }, 0, 0 },
+                        { .duration = 250, .waveFreq = { 620, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt =  ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                             // TONE_CDMA_INTERCEPT
+        { .segments = { { .duration = 250, .waveFreq = { 440, 0 }, 0, 0 },
+                        { .duration = 250, .waveFreq = { 620, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt =  0,
+          .repeatSegment = 0 },                             // TONE_CDMA_ABBR_INTERCEPT
+        { .segments = { { .duration = 250, .waveFreq = { 480, 620, 0 }, 0, 0 },
+                        { .duration = 250, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_CDMA_REORDER
+        { .segments = { { .duration = 250, .waveFreq = { 480, 620, 0 }, 0, 0 },
+                        { .duration = 250, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 7,
+          .repeatSegment = 0 },                              // TONE_CDMA_ABBR_REORDER
+        { .segments = { { .duration = 500, .waveFreq = { 480, 620, 0 }, 0, 0 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_CDMA_NETWORK_BUSY
+        { .segments = { { .duration = 100, .waveFreq = { 350, 440, 0 }, 0, 0 },
+                        { .duration = 100, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 2,
+          .repeatSegment = 0 },                              // TONE_CDMA_CONFIRM
+        { .segments = { { .duration = 500, .waveFreq = { 660, 1000, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                              // TONE_CDMA_ANSWER
+        { .segments = { { .duration = 300, .waveFreq = { 440, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                              // TONE_CDMA_NETWORK_CALLWAITING
+        { .segments = { { .duration = 100, .waveFreq = { 480, 0 }, 0, 0 },
+                        { .duration = 100, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 3,
+          .repeatSegment = 0 },                              // TONE_CDMA_PIP
+
+        { .segments = { { .duration = 32, .waveFreq = { 2091, 0}, 0, 0 },
+                        { .duration = 64, .waveFreq = { 2556, 0}, 19, 0},
+                        { .duration = 32, .waveFreq = { 2091, 0}, 0, 0},
+                        { .duration = 48, .waveFreq = { 2556, 0}, 0, 0},
+                        { .duration = 4000, .waveFreq = { 0 }, 0, 0},
+                        { .duration = 0,  .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                             // TONE_CDMA_CALL_SIGNAL_ISDN_NORMAL
+        { .segments = { { .duration = 32, .waveFreq = { 2091, 0}, 0, 0 },
+                        { .duration = 64, .waveFreq = { 2556, 0}, 7, 0 },
+                        { .duration = 32, .waveFreq = { 2091, 0}, 0, 0 },
+                        { .duration = 400, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 32,  .waveFreq = { 2091, 0}, 0, 0 },
+                        { .duration = 64,  .waveFreq = { 2556, 0}, 7, 4 },
+                        { .duration = 32,  .waveFreq = { 2091, 0}, 0, 0 },
+                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0,    .waveFreq = { 0 }, 0, 0 } },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                              // TONE_CDMA_CALL_SIGNAL_ISDN_INTERGROUP
+        { .segments = { { .duration = 32, .waveFreq = { 2091, 0}, 0, 0 },
+                        { .duration = 64, .waveFreq = { 2556, 0}, 3, 0 },
+                        { .duration = 16, .waveFreq = { 2091, 0}, 0, 0 },
+                        { .duration = 200, .waveFreq = { 0 },     0, 0 },
+                        { .duration = 32, .waveFreq = { 2091, 0}, 0, 0 },
+                        { .duration = 64, .waveFreq = { 2556, 0}, 3, 4 },
+                        { .duration = 16, .waveFreq = { 2091, 0}, 0, 0 },
+                        { .duration = 200, .waveFreq = { 0 },     0, 0 },
+                        { .duration = 0,   .waveFreq = { 0 },     0, 0 } },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                            // TONE_CDMA_CALL_SIGNAL_ISDN_SP_PRI
+        { .segments = { { .duration = 0,  .waveFreq = { 0 }, 0, 0} },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                            // TONE_CDMA_CALL_SIGNAL_ISDN_PAT3
+        { .segments = { { .duration = 32, .waveFreq = { 2091, 0 }, 0, 0 },
+                        { .duration = 64, .waveFreq = { 2556, 0 }, 4, 0 },
+                        { .duration = 20, .waveFreq = { 2091, 0 }, 0, 0 },
+                        { .duration = 0,  .waveFreq = { 0 }      , 0, 0 } },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                             // TONE_CDMA_CALL_SIGNAL_ISDN_PING_RING
+        { .segments = { { .duration = 0,  .waveFreq = { 0 }, 0, 0} },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                             // TONE_CDMA_CALL_SIGNAL_ISDN_PAT5
+        { .segments = { { .duration = 0,  .waveFreq = { 0 }, 0, 0} },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                             // TONE_CDMA_CALL_SIGNAL_ISDN_PAT6
+        { .segments = { { .duration = 0,  .waveFreq = { 0 }, 0, 0} },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                             // TONE_CDMA_CALL_SIGNAL_ISDN_PAT7
+
+        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 39, 0 },
+                        { .duration = 4000, .waveFreq = { 0 },     0, 0 },
+                        { .duration = 0,    .waveFreq = { 0 },     0, 0 } },
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_L
+        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 39, 0 },
+                        { .duration = 4000, .waveFreq = { 0 },     0, 0 },
+                        { .duration = 0,    .waveFreq = { 0 },     0, 0 } },
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_MED_L
+        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 39, 0 },
+                        { .duration = 4000, .waveFreq = { 0 },     0, 0 },
+                        { .duration = 0,    .waveFreq = { 0 },     0, 0 } },
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_LOW_L
+        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 15, 0 },
+                        { .duration = 400, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 } },
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_SS
+        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 15, 0 },
+                        { .duration = 400, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_MED_SS
+        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 15, 0 },
+                        { .duration = 400, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_LOW_SS
+        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 15, 6 },
+                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_SSL
+        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 15, 6 },
+                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_MED_SSL
+        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 15, 6 },
+                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_LOW_SSL
+        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                          { .duration = 25, .waveFreq = { 4000, 0 }, 19, 0 },
+                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 19, 3 },
+                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_SS_2
+        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 19, 0 },
+                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 19, 3 },
+                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_MED_SS_2
+        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 19, 0 },
+                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 19, 3 },
+                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_LOW_SS_2
+        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 0 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 19, 3 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 6 },
+                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_SLS
+        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 0 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 19, 3 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 6 },
+                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_MED_SLS
+        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 0 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 19, 3 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 6 },
+                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_LOW_SLS
+        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 0 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 3 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 6 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 9 },
+                        { .duration = 2500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_S_X4
+        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 0 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 3 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 6 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 9 },
+                        { .duration = 2500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_MED_S_X4
+        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 0 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 3 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 6 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 9 },
+                        { .duration = 2500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_LOW_S_X4
+        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 19, 0 },
+                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_PBX_L
+        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 19, 0 },
+                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_MED_PBX_L
+        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 19, 0 },
+                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_LOW_PBX_L
+        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 3 },
+                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_PBX_SS
+        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 3 },
+                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_MED_PBX_SS
+        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 3 },
+                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_LOW_PBX_SS
+        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 15, 6 },
+                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_PBX_SSL
+        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 15, 6 },
+                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_MED_PBX_SSL
+        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 15, 6 },
+                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_LOW_PBX_SSL
+        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 15, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 6 },
+                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_PBX_SLS
+        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 15, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 6 },
+                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_MED_PBX_SLS
+        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 15, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 6 },
+                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+           .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_LOW_PBX_SLS
+        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 6 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 9 },
+                        { .duration = 800, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_PBX_S_X4
+        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 6 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 9 },
+                        { .duration = 800, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_MED_PBX_S_X4
+        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 3 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 6 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
+                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 9 },
+                        { .duration = 800, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                           // TONE_CDMA_LOW_PBX_S_X4
+
+        { .segments = { { .duration = 62, .waveFreq = { 1109, 0 }, 0, 0 },
+                        { .duration = 62, .waveFreq = { 784, 0 },  0, 0 },
+                        { .duration = 62, .waveFreq = { 740, 0 },  0, 0 },
+                        { .duration = 62, .waveFreq = { 622, 0 },  0, 0 },
+                        { .duration = 62, .waveFreq = { 1109, 0 }, 0, 0 },
+                        { .duration = 0,  .waveFreq = { 0 },       0, 0 } },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                            // TONE_CDMA_ALERT_NETWORK_LITE
+        { .segments = { { .duration = 62, .waveFreq = { 1245, 0 }, 0, 0 },
+                        { .duration = 62, .waveFreq = { 659, 0 },  2, 0 },
+                        { .duration = 62, .waveFreq = { 1245, 0 }, 0, 0 },
+                        { .duration = 0,  .waveFreq = { 0 },       0, 0 } },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                            // TONE_CDMA_ALERT_AUTOREDIAL_LITE
+        { .segments = { { .duration = 400, .waveFreq = { 1150, 770, 0 }, 0, 0 },
+                        { .duration = 0,   .waveFreq = { 0 },            0, 0 } },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                            // TONE_CDMA_ONE_MIN_BEEP
+        { .segments = { { .duration = 120, .waveFreq = { 941, 1477, 0 }, 0, 0 },
+                        { .duration = 0,   .waveFreq = { 0 },            0, 0 } },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                            // TONE_CDMA_KEYPAD_VOLUME_KEY_LITE
+        { .segments = { { .duration = 375, .waveFreq = { 587, 0 }, 0, 0 },
+                        { .duration = 125, .waveFreq = { 1175, 0 }, 0, 0 },
+                        { .duration = 0,   .waveFreq = { 0 },       0, 0 } },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                            // TONE_CDMA_PRESSHOLDKEY_LITE
+        { .segments = { { .duration = 62, .waveFreq = { 587, 0 }, 0, 0 },
+                        { .duration = 62, .waveFreq = { 784, 0 }, 0, 0 },
+                        { .duration = 62, .waveFreq = { 831, 0 }, 0, 0 },
+                        { .duration = 62, .waveFreq = { 784, 0 }, 0, 0 },
+                        { .duration = 62, .waveFreq = { 1109, 0 }, 0, 0 },
+                        { .duration = 62, .waveFreq = { 784, 0 }, 0, 0 },
+                        { .duration = 62, .waveFreq = { 831, 0 }, 0, 0 },
+                        { .duration = 62, .waveFreq = { 784, 0 }, 0, 0 },
+                        { .duration = 0,  .waveFreq = { 0 },      0, 0 } },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                             // TONE_CDMA_ALERT_INCALL_LITE
+        { .segments = { { .duration = 125, .waveFreq = { 941, 0 }, 0, 0 },
+                        { .duration = 10,  .waveFreq = { 0 },      2, 0 },
+                        { .duration = 4990, .waveFreq = { 0 },     0, 0 },
+                        { .duration = 0,    .waveFreq = { 0 },     0, 0 } },
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                            // TONE_CDMA_EMERGENCY_RINGBACK
+        { .segments = { { .duration = 125, .waveFreq = { 1319, 0 }, 0, 0 },
+                        { .duration = 125, .waveFreq = { 0 },       0, 0 },
+                        { .duration = 0,   .waveFreq = { 0 },       0, 0 } },
+          .repeatCnt = 2,
+          .repeatSegment = 0 },                            // TONE_CDMA_ALERT_CALL_GUARD
+        { .segments = { { .duration = 125, .waveFreq = { 1047, 0 }, 0, 0 },
+                        { .duration = 125, .waveFreq = { 370,  0 }, 0, 0 },
+                        { .duration = 0,   .waveFreq = { 0 },       0, 0 } },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                            // TONE_CDMA_SOFT_ERROR_LITE
+        { .segments = { { .duration = 125, .waveFreq = { 1480, 0 }, 0, 0 },
+                        { .duration = 125, .waveFreq = { 1397, 0 }, 0, 0 },
+                        { .duration = 125, .waveFreq = { 784, 0 },  0, 0 },
+                        { .duration = 0,   .waveFreq = { 0 },       0, 0 } },
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                            // TONE_CDMA_CALLDROP_LITE
+
+        { .segments = { { .duration = 500, .waveFreq = { 425, 0 }, 0, 0 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                           // TONE_CDMA_NETWORK_BUSY_ONE_SHOT
+        { .segments = { { .duration = 400, .waveFreq = { 1150, 770 }, 0, 0 },
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                           // TONE_CDMA_ABBR_ALERT
+          { .segments = { { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
+          .repeatCnt = 0,
+          .repeatSegment = 0 },                            // TONE_CDMA_SIGNAL_OFF
+
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 350, 440, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_ANSI_DIAL
+        { .segments = { { .duration = 500, .waveFreq = { 480, 620, 0 }, 0, 0 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_ANSI_BUSY
+        { .segments = { { .duration = 250, .waveFreq = { 480, 620, 0 }, 0, 0 },
+                        { .duration = 250, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_ANSI_CONGESTION
+        { .segments = { { .duration = 300, .waveFreq = { 440, 0 }, 0, 0 },
+                        { .duration = 9700, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 100, .waveFreq = { 440, 0 }, 0, 0 },
+                        { .duration = 100, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 100, .waveFreq = { 440, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 1 },                              // TONE_ANSI_CALL_WAITING
+        { .segments = { { .duration = 2000, .waveFreq = { 440, 480, 0 }, 0, 0 },
+                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_ANSI_RINGTONE
+        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 400, 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_JAPAN_DIAL
+        { .segments = { { .duration = 500, .waveFreq = { 400, 0 }, 0, 0 },
+                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_JAPAN_BUSY
+        { .segments = { { .duration = 1000, .waveFreq = { 400, 0 }, 0, 0 },
+                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_JAPAN_RADIO_ACK
+        { .segments = { { .duration = 400, .waveFreq = { 400, 450, 0 }, 0, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 400, .waveFreq = { 400, 450, 0 }, 0, 0 },
+                        { .duration = 2000, .waveFreq = { 0 }, 0, 0},
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_GB_RINGTONE
+        { .segments = { { .duration = 400, .waveFreq = { 400, 450, 0 }, 0, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 400, .waveFreq = { 400, 450, 0 }, 0, 0 },
+                        { .duration = 2000, .waveFreq = { 0 }, 0, 0},
+                        { .duration = 0, .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_AUSTRALIA_RINGTONE
+        { .segments = { { .duration = 375, .waveFreq = { 425, 0 }, 0, 0 },
+                        { .duration = 375, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_AUSTRALIA_BUSY
+        { .segments = { { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
+                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
+                        { .duration = 4400, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_AUSTRALIA_CALL_WAITING
+        { .segments = { { .duration = 375, .waveFreq = { 425, 0 }, 0, 0 },
+                        { .duration = 375, .waveFreq = { 0 }, 0, 0 },
+                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
+          .repeatCnt = ToneGenerator::TONEGEN_INF,
+          .repeatSegment = 0 },                              // TONE_AUSTRALIA_CONGESTION
+};
+
+// Used by ToneGenerator::getToneForRegion() to convert user specified supervisory tone type
+// to actual tone for current region.
+const unsigned char /*tone_type*/ ToneGenerator::sToneMappingTable[NUM_REGIONS-1][NUM_SUP_TONES] = {
+        {   // ANSI
+            TONE_ANSI_DIAL,             // TONE_SUP_DIAL
+            TONE_ANSI_BUSY,             // TONE_SUP_BUSY
+            TONE_ANSI_CONGESTION,       // TONE_SUP_CONGESTION
+            TONE_SUP_RADIO_ACK,         // TONE_SUP_RADIO_ACK
+            TONE_SUP_RADIO_NOTAVAIL,    // TONE_SUP_RADIO_NOTAVAIL
+            TONE_SUP_ERROR,             // TONE_SUP_ERROR
+            TONE_ANSI_CALL_WAITING,     // TONE_SUP_CALL_WAITING
+            TONE_ANSI_RINGTONE          // TONE_SUP_RINGTONE
+        },
+        {   // JAPAN
+            TONE_JAPAN_DIAL,             // TONE_SUP_DIAL
+            TONE_JAPAN_BUSY,             // TONE_SUP_BUSY
+            TONE_SUP_CONGESTION,         // TONE_SUP_CONGESTION
+            TONE_JAPAN_RADIO_ACK,        // TONE_SUP_RADIO_ACK
+            TONE_SUP_RADIO_NOTAVAIL,     // TONE_SUP_RADIO_NOTAVAIL
+            TONE_SUP_ERROR,              // TONE_SUP_ERROR
+            TONE_SUP_CALL_WAITING,       // TONE_SUP_CALL_WAITING
+            TONE_SUP_RINGTONE            // TONE_SUP_RINGTONE
+        },
+        {   // GB
+            TONE_SUP_DIAL,               // TONE_SUP_DIAL
+            TONE_SUP_BUSY,               // TONE_SUP_BUSY
+            TONE_SUP_CONGESTION,         // TONE_SUP_CONGESTION
+            TONE_SUP_RADIO_ACK,          // TONE_SUP_RADIO_ACK
+            TONE_SUP_RADIO_NOTAVAIL,     // TONE_SUP_RADIO_NOTAVAIL
+            TONE_SUP_ERROR,              // TONE_SUP_ERROR
+            TONE_SUP_CALL_WAITING,       // TONE_SUP_CALL_WAITING
+            TONE_GB_RINGTONE             // TONE_SUP_RINGTONE
+        },
+        {   // AUSTRALIA
+            TONE_ANSI_DIAL,             // TONE_SUP_DIAL
+            TONE_AUSTRALIA_BUSY,        // TONE_SUP_BUSY
+            TONE_AUSTRALIA_CONGESTION,  // TONE_SUP_CONGESTION
+            TONE_SUP_RADIO_ACK,         // TONE_SUP_RADIO_ACK
+            TONE_SUP_RADIO_NOTAVAIL,    // TONE_SUP_RADIO_NOTAVAIL
+            TONE_SUP_ERROR,             // TONE_SUP_ERROR
+            TONE_AUSTRALIA_CALL_WAITING,// TONE_SUP_CALL_WAITING
+            TONE_AUSTRALIA_RINGTONE     // TONE_SUP_RINGTONE
+        }
+};
+
+
+////////////////////////////////////////////////////////////////////////////////
+//                           ToneGenerator class Implementation
+////////////////////////////////////////////////////////////////////////////////
+
+
+//---------------------------------- public methods ----------------------------
+
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        ToneGenerator::ToneGenerator()
+//
+//    Description:    Constructor. Initializes the tone sequencer, intantiates required sine wave
+//        generators, instantiates output audio track.
+//
+//    Input:
+//        streamType:        Type of stream used for tone playback
+//        volume:            volume applied to tone (0.0 to 1.0)
+//
+//    Output:
+//        none
+//
+////////////////////////////////////////////////////////////////////////////////
+ToneGenerator::ToneGenerator(audio_stream_type_t streamType, float volume, bool threadCanCallJava) {
+
+    ALOGV("ToneGenerator constructor: streamType=%d, volume=%f", streamType, volume);
+
+    mState = TONE_IDLE;
+
+    if (AudioSystem::getOutputSamplingRate(&mSamplingRate, streamType) != NO_ERROR) {
+        ALOGE("Unable to marshal AudioFlinger");
+        return;
+    }
+    mThreadCanCallJava = threadCanCallJava;
+    mStreamType = streamType;
+    mVolume = volume;
+    mpToneDesc = NULL;
+    mpNewToneDesc = NULL;
+    // Generate tone by chunks of 20 ms to keep cadencing precision
+    mProcessSize = (mSamplingRate * 20) / 1000;
+
+    char value[PROPERTY_VALUE_MAX];
+    if (property_get("gsm.operator.iso-country", value, "") == 0) {
+        property_get("gsm.sim.operator.iso-country", value, "");
+    }
+    if (strstr(value, "us") != NULL ||
+        strstr(value, "ca") != NULL) {
+        mRegion = ANSI;
+    } else if (strstr(value, "jp") != NULL) {
+        mRegion = JAPAN;
+    } else if (strstr(value, "gb") != NULL) {
+        mRegion = GB;
+    } else if (strstr(value, "au") != NULL) {
+        mRegion = AUSTRALIA;
+    } else {
+        mRegion = CEPT;
+    }
+
+    if (initAudioTrack()) {
+        ALOGV("ToneGenerator INIT OK, time: %d", (unsigned int)(systemTime()/1000000));
+    } else {
+        ALOGV("!!!ToneGenerator INIT FAILED!!!");
+    }
+}
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        ToneGenerator::~ToneGenerator()
+//
+//    Description:    Destructor. Stop sound playback and delete audio track if
+//      needed and delete sine wave generators.
+//
+//    Input:
+//        none
+//
+//    Output:
+//        none
+//
+////////////////////////////////////////////////////////////////////////////////
+ToneGenerator::~ToneGenerator() {
+    ALOGV("ToneGenerator destructor");
+
+    if (mpAudioTrack != 0) {
+        stopTone();
+        ALOGV("Delete Track: %p", mpAudioTrack.get());
+        mpAudioTrack.clear();
+    }
+    clearWaveGens();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        ToneGenerator::startTone()
+//
+//    Description:    Starts tone playback.
+//
+//    Input:
+//        toneType:        Type of tone generated (values in enum tone_type)
+//        durationMs:      The tone duration in milliseconds. If the tone is limited in time by definition,
+//              the actual duration will be the minimum of durationMs and the defined tone duration.
+//              Ommiting or setting durationMs to -1 does not limit tone duration.
+//
+//    Output:
+//        none
+//
+////////////////////////////////////////////////////////////////////////////////
+bool ToneGenerator::startTone(tone_type toneType, int durationMs) {
+    bool lResult = false;
+    status_t lStatus;
+
+    if ((toneType < 0) || (toneType >= NUM_TONES))
+        return lResult;
+
+    toneType = getToneForRegion(toneType);
+    if (toneType == TONE_CDMA_SIGNAL_OFF) {
+        return true;
+    }
+
+    if (mState == TONE_IDLE) {
+        ALOGV("startTone: try to re-init AudioTrack");
+        if (!initAudioTrack()) {
+            return lResult;
+        }
+    }
+
+    ALOGV("startTone");
+
+    mLock.lock();
+
+    // Get descriptor for requested tone
+    mpNewToneDesc = &sToneDescriptors[toneType];
+
+    mDurationMs = durationMs;
+
+    if (mState == TONE_STOPPED) {
+        ALOGV("Start waiting for previous tone to stop");
+        lStatus = mWaitCbkCond.waitRelative(mLock, seconds(3));
+        if (lStatus != NO_ERROR) {
+            ALOGE("--- start wait for stop timed out, status %d", lStatus);
+            mState = TONE_IDLE;
+            mLock.unlock();
+            return lResult;
+        }
+    }
+
+    if (mState == TONE_INIT) {
+        if (prepareWave()) {
+            ALOGV("Immediate start, time %d", (unsigned int)(systemTime()/1000000));
+            lResult = true;
+            mState = TONE_STARTING;
+            if (clock_gettime(CLOCK_MONOTONIC, &mStartTime) != 0) {
+                mStartTime.tv_sec = 0;
+            }
+            mLock.unlock();
+            mpAudioTrack->start();
+            mLock.lock();
+            if (mState == TONE_STARTING) {
+                ALOGV("Wait for start callback");
+                lStatus = mWaitCbkCond.waitRelative(mLock, seconds(3));
+                if (lStatus != NO_ERROR) {
+                    ALOGE("--- Immediate start timed out, status %d", lStatus);
+                    mState = TONE_IDLE;
+                    lResult = false;
+                }
+            }
+        } else {
+            mState = TONE_IDLE;
+        }
+    } else {
+        ALOGV("Delayed start");
+        mState = TONE_RESTARTING;
+        mStartTime.tv_sec = 0;
+        lStatus = mWaitCbkCond.waitRelative(mLock, seconds(3));
+        if (lStatus == NO_ERROR) {
+            if (mState != TONE_IDLE) {
+                lResult = true;
+            }
+            ALOGV("cond received");
+        } else {
+            ALOGE("--- Delayed start timed out, status %d", lStatus);
+            mState = TONE_IDLE;
+        }
+    }
+    mLock.unlock();
+
+    ALOGV_IF(lResult, "Tone started, time %d", (unsigned int)(systemTime()/1000000));
+    ALOGW_IF(!lResult, "Tone start failed!!!, time %d", (unsigned int)(systemTime()/1000000));
+
+    return lResult;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        ToneGenerator::stopTone()
+//
+//    Description:    Stops tone playback.
+//
+//    Input:
+//        none
+//
+//    Output:
+//        none
+//
+////////////////////////////////////////////////////////////////////////////////
+void ToneGenerator::stopTone() {
+    ALOGV("stopTone");
+
+    mLock.lock();
+    if (mState != TONE_IDLE && mState != TONE_INIT) {
+        if (mState == TONE_PLAYING || mState == TONE_STARTING || mState == TONE_RESTARTING) {
+            struct timespec stopTime;
+            // If the start time is valid, make sure that the number of audio samples produced
+            // corresponds at least to the time between the start and stop commands.
+            // This is needed in case of cold start of the output stream.
+            if ((mStartTime.tv_sec != 0) && (clock_gettime(CLOCK_MONOTONIC, &stopTime) == 0)) {
+                time_t sec = stopTime.tv_sec - mStartTime.tv_sec;
+                long nsec = stopTime.tv_nsec - mStartTime.tv_nsec;
+                if (nsec < 0) {
+                    --sec;
+                    nsec += 1000000000;
+                }
+
+                if ((sec + 1) > ((long)(INT_MAX / mSamplingRate))) {
+                    mMaxSmp = sec * mSamplingRate;
+                } else {
+                    // mSamplingRate is always > 1000
+                    sec = sec * 1000 + nsec / 1000000; // duration in milliseconds
+                    mMaxSmp = (unsigned int)(((int64_t)sec * mSamplingRate) / 1000);
+                }
+                ALOGV("stopTone() forcing mMaxSmp to %d, total for far %d", mMaxSmp,  mTotalSmp);
+            } else {
+                mState = TONE_STOPPING;
+            }
+        }
+        ALOGV("waiting cond");
+        status_t lStatus = mWaitCbkCond.waitRelative(mLock, seconds(3));
+        if (lStatus == NO_ERROR) {
+            // If the tone was restarted exit now before calling clearWaveGens();
+            if (mState != TONE_INIT) {
+                mLock.unlock();
+                return;
+            }
+            ALOGV("track stop complete, time %d", (unsigned int)(systemTime()/1000000));
+        } else {
+            ALOGE("--- Stop timed out");
+            mState = TONE_IDLE;
+            mpAudioTrack->stop();
+        }
+        clearWaveGens();
+    }
+
+    mLock.unlock();
+}
+
+//---------------------------------- private methods ---------------------------
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        ToneGenerator::initAudioTrack()
+//
+//    Description:    Allocates and configures AudioTrack used for PCM output.
+//
+//    Input:
+//        none
+//
+//    Output:
+//        none
+//
+////////////////////////////////////////////////////////////////////////////////
+bool ToneGenerator::initAudioTrack() {
+    // Open audio track in mono, PCM 16bit, default sampling rate.
+    mpAudioTrack = new AudioTrack();
+    ALOGV("AudioTrack(%p) created", mpAudioTrack.get());
+
+    const size_t frameCount = mProcessSize;
+    status_t status = mpAudioTrack->set(
+            mStreamType,
+            0,    // sampleRate
+            AUDIO_FORMAT_PCM_16_BIT,
+            AUDIO_CHANNEL_OUT_MONO,
+            frameCount,
+            AUDIO_OUTPUT_FLAG_FAST,
+            audioCallback,
+            this, // user
+            0,    // notificationFrames
+            0,    // sharedBuffer
+            mThreadCanCallJava,
+            AUDIO_SESSION_ALLOCATE,
+            AudioTrack::TRANSFER_CALLBACK);
+
+    if (status != NO_ERROR) {
+        ALOGE("AudioTrack(%p) set failed with error %d", mpAudioTrack.get(), status);
+        mpAudioTrack.clear();
+        return false;
+    }
+
+    mpAudioTrack->setVolume(mVolume);
+    mState = TONE_INIT;
+    return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        ToneGenerator::audioCallback()
+//
+//    Description:    AudioTrack callback implementation. Generates a block of
+//        PCM samples
+//        and manages tone generator sequencer: tones pulses, tone duration...
+//
+//    Input:
+//        user    reference (pointer to our ToneGenerator)
+//        info    audio buffer descriptor
+//
+//    Output:
+//        returned value: always true.
+//
+////////////////////////////////////////////////////////////////////////////////
+void ToneGenerator::audioCallback(int event, void* user, void *info) {
+
+    if (event != AudioTrack::EVENT_MORE_DATA) return;
+
+    AudioTrack::Buffer *buffer = static_cast<AudioTrack::Buffer *>(info);
+    ToneGenerator *lpToneGen = static_cast<ToneGenerator *>(user);
+    short *lpOut = buffer->i16;
+    unsigned int lNumSmp = buffer->size/sizeof(short);
+    const ToneDescriptor *lpToneDesc = lpToneGen->mpToneDesc;
+
+    if (buffer->size == 0) return;
+
+
+    // Clear output buffer: WaveGenerator accumulates into lpOut buffer
+    memset(lpOut, 0, buffer->size);
+
+    while (lNumSmp) {
+        unsigned int lReqSmp = lNumSmp < lpToneGen->mProcessSize*2 ? lNumSmp : lpToneGen->mProcessSize;
+        unsigned int lGenSmp;
+        unsigned int lWaveCmd = WaveGenerator::WAVEGEN_CONT;
+        bool lSignal = false;
+
+        lpToneGen->mLock.lock();
+
+
+        // Update pcm frame count and end time (current time at the end of this process)
+        lpToneGen->mTotalSmp += lReqSmp;
+
+        // Update tone gen state machine and select wave gen command
+        switch (lpToneGen->mState) {
+        case TONE_PLAYING:
+            lWaveCmd = WaveGenerator::WAVEGEN_CONT;
+            break;
+        case TONE_STARTING:
+            ALOGV("Starting Cbk");
+
+            lWaveCmd = WaveGenerator::WAVEGEN_START;
+            break;
+        case TONE_STOPPING:
+        case TONE_RESTARTING:
+            ALOGV("Stop/restart Cbk");
+
+            lWaveCmd = WaveGenerator::WAVEGEN_STOP;
+            lpToneGen->mNextSegSmp = TONEGEN_INF; // forced to skip state machine management below
+            break;
+        case TONE_STOPPED:
+            ALOGV("Stopped Cbk");
+            goto audioCallback_EndLoop;
+        default:
+            ALOGV("Extra Cbk");
+            goto audioCallback_EndLoop;
+        }
+
+        // Exit if tone sequence is over
+        if (lpToneDesc->segments[lpToneGen->mCurSegment].duration == 0 ||
+            lpToneGen->mTotalSmp > lpToneGen->mMaxSmp) {
+            if (lpToneGen->mState == TONE_PLAYING) {
+                lpToneGen->mState = TONE_STOPPING;
+            }
+            if (lpToneDesc->segments[lpToneGen->mCurSegment].duration == 0) {
+                goto audioCallback_EndLoop;
+            }
+            // fade out before stopping if maximum duration reached
+            lWaveCmd = WaveGenerator::WAVEGEN_STOP;
+            lpToneGen->mNextSegSmp = TONEGEN_INF; // forced to skip state machine management below
+        }
+
+        if (lpToneGen->mTotalSmp > lpToneGen->mNextSegSmp) {
+            // Time to go to next sequence segment
+
+            ALOGV("End Segment, time: %d", (unsigned int)(systemTime()/1000000));
+
+            lGenSmp = lReqSmp;
+
+            // If segment,  ON -> OFF transition : ramp volume down
+            if (lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[0] != 0) {
+                lWaveCmd = WaveGenerator::WAVEGEN_STOP;
+                unsigned int lFreqIdx = 0;
+                unsigned short lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[lFreqIdx];
+
+                while (lFrequency != 0) {
+                    WaveGenerator *lpWaveGen = lpToneGen->mWaveGens.valueFor(lFrequency);
+                    lpWaveGen->getSamples(lpOut, lGenSmp, lWaveCmd);
+                    lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[++lFreqIdx];
+                }
+                ALOGV("ON->OFF, lGenSmp: %d, lReqSmp: %d", lGenSmp, lReqSmp);
+            }
+
+            // check if we need to loop and loop for the reqd times
+            if (lpToneDesc->segments[lpToneGen->mCurSegment].loopCnt) {
+                if (lpToneGen->mLoopCounter < lpToneDesc->segments[lpToneGen->mCurSegment].loopCnt) {
+                    ALOGV ("in if loop loopCnt(%d) loopctr(%d), CurSeg(%d)",
+                          lpToneDesc->segments[lpToneGen->mCurSegment].loopCnt,
+                          lpToneGen->mLoopCounter,
+                          lpToneGen->mCurSegment);
+                    lpToneGen->mCurSegment = lpToneDesc->segments[lpToneGen->mCurSegment].loopIndx;
+                    ++lpToneGen->mLoopCounter;
+                } else {
+                    // completed loop. go to next segment
+                    lpToneGen->mLoopCounter = 0;
+                    lpToneGen->mCurSegment++;
+                    ALOGV ("in else loop loopCnt(%d) loopctr(%d), CurSeg(%d)",
+                          lpToneDesc->segments[lpToneGen->mCurSegment].loopCnt,
+                          lpToneGen->mLoopCounter,
+                          lpToneGen->mCurSegment);
+                }
+            } else {
+                lpToneGen->mCurSegment++;
+                ALOGV ("Goto next seg loopCnt(%d) loopctr(%d), CurSeg(%d)",
+                      lpToneDesc->segments[lpToneGen->mCurSegment].loopCnt,
+                      lpToneGen->mLoopCounter,
+                      lpToneGen->mCurSegment);
+
+            }
+
+            // Handle loop if last segment reached
+            if (lpToneDesc->segments[lpToneGen->mCurSegment].duration == 0) {
+                ALOGV("Last Seg: %d", lpToneGen->mCurSegment);
+
+                // Pre increment loop count and restart if total count not reached. Stop sequence otherwise
+                if (++lpToneGen->mCurCount <= lpToneDesc->repeatCnt) {
+                    ALOGV("Repeating Count: %d", lpToneGen->mCurCount);
+
+                    lpToneGen->mCurSegment = lpToneDesc->repeatSegment;
+                    if (lpToneDesc->segments[lpToneDesc->repeatSegment].waveFreq[0] != 0) {
+                        lWaveCmd = WaveGenerator::WAVEGEN_START;
+                    }
+
+                    ALOGV("New segment %d, Next Time: %d", lpToneGen->mCurSegment,
+                            (lpToneGen->mNextSegSmp*1000)/lpToneGen->mSamplingRate);
+
+                } else {
+                    lGenSmp = 0;
+                    ALOGV("End repeat, time: %d", (unsigned int)(systemTime()/1000000));
+                }
+            } else {
+                ALOGV("New segment %d, Next Time: %d", lpToneGen->mCurSegment,
+                        (lpToneGen->mNextSegSmp*1000)/lpToneGen->mSamplingRate);
+                if (lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[0] != 0) {
+                    // If next segment is not silent,  OFF -> ON transition : reset wave generator
+                    lWaveCmd = WaveGenerator::WAVEGEN_START;
+
+                    ALOGV("OFF->ON, lGenSmp: %d, lReqSmp: %d", lGenSmp, lReqSmp);
+                } else {
+                    lGenSmp = 0;
+                }
+            }
+
+            // Update next segment transition position. No harm to do it also for last segment as lpToneGen->mNextSegSmp won't be used any more
+            lpToneGen->mNextSegSmp
+                    += (lpToneDesc->segments[lpToneGen->mCurSegment].duration * lpToneGen->mSamplingRate) / 1000;
+
+        } else {
+            // Inside a segment keep tone ON or OFF
+            if (lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[0] == 0) {
+                lGenSmp = 0;  // If odd segment, tone is currently OFF
+            } else {
+                lGenSmp = lReqSmp;  // If event segment, tone is currently ON
+            }
+        }
+
+        if (lGenSmp) {
+            // If samples must be generated, call all active wave generators and acumulate waves in lpOut
+            unsigned int lFreqIdx = 0;
+            unsigned short lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[lFreqIdx];
+
+            while (lFrequency != 0) {
+                WaveGenerator *lpWaveGen = lpToneGen->mWaveGens.valueFor(lFrequency);
+                lpWaveGen->getSamples(lpOut, lGenSmp, lWaveCmd);
+                lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[++lFreqIdx];
+            }
+        }
+
+        lNumSmp -= lReqSmp;
+        lpOut += lReqSmp;
+
+audioCallback_EndLoop:
+
+        switch (lpToneGen->mState) {
+        case TONE_RESTARTING:
+            ALOGV("Cbk restarting track");
+            if (lpToneGen->prepareWave()) {
+                lpToneGen->mState = TONE_STARTING;
+                if (clock_gettime(CLOCK_MONOTONIC, &lpToneGen->mStartTime) != 0) {
+                    lpToneGen->mStartTime.tv_sec = 0;
+                }
+                // must reload lpToneDesc as prepareWave() may change mpToneDesc
+                lpToneDesc = lpToneGen->mpToneDesc;
+            } else {
+                ALOGW("Cbk restarting prepareWave() failed");
+                lpToneGen->mState = TONE_IDLE;
+                lpToneGen->mpAudioTrack->stop();
+                // Force loop exit
+                lNumSmp = 0;
+            }
+            lSignal = true;
+            break;
+        case TONE_STOPPING:
+            ALOGV("Cbk Stopping");
+            lpToneGen->mState = TONE_STOPPED;
+            // Force loop exit
+            lNumSmp = 0;
+            break;
+        case TONE_STOPPED:
+            lpToneGen->mState = TONE_INIT;
+            ALOGV("Cbk Stopped track");
+            lpToneGen->mpAudioTrack->stop();
+            // Force loop exit
+            lNumSmp = 0;
+            buffer->size = 0;
+            lSignal = true;
+            break;
+        case TONE_STARTING:
+            ALOGV("Cbk starting track");
+            lpToneGen->mState = TONE_PLAYING;
+            lSignal = true;
+            break;
+        case TONE_PLAYING:
+            break;
+        default:
+            // Force loop exit
+            lNumSmp = 0;
+            buffer->size = 0;
+            break;
+        }
+
+        if (lSignal)
+            lpToneGen->mWaitCbkCond.broadcast();
+        lpToneGen->mLock.unlock();
+    }
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        ToneGenerator::prepareWave()
+//
+//    Description:    Prepare wave generators and reset tone sequencer state machine.
+//      mpNewToneDesc must have been initialized before calling this function.
+//    Input:
+//        none
+//
+//    Output:
+//        returned value:   true if wave generators have been created, false otherwise
+//
+////////////////////////////////////////////////////////////////////////////////
+bool ToneGenerator::prepareWave() {
+    unsigned int segmentIdx = 0;
+
+    if (mpNewToneDesc == NULL) {
+        return false;
+    }
+
+    // Remove existing wave generators if any
+    clearWaveGens();
+
+    mpToneDesc = mpNewToneDesc;
+
+    if (mDurationMs == -1) {
+        mMaxSmp = TONEGEN_INF;
+    } else {
+        if (mDurationMs > (int)(TONEGEN_INF / mSamplingRate)) {
+            mMaxSmp = (mDurationMs / 1000) * mSamplingRate;
+        } else {
+            mMaxSmp = (mDurationMs * mSamplingRate) / 1000;
+        }
+        ALOGV("prepareWave, duration limited to %d ms", mDurationMs);
+    }
+
+    while (mpToneDesc->segments[segmentIdx].duration) {
+        // Get total number of sine waves: needed to adapt sine wave gain.
+        unsigned int lNumWaves = numWaves(segmentIdx);
+        unsigned int freqIdx = 0;
+        unsigned int frequency = mpToneDesc->segments[segmentIdx].waveFreq[freqIdx];
+        while (frequency) {
+            // Instantiate a wave generator if  ot already done for this frequency
+            if (mWaveGens.indexOfKey(frequency) == NAME_NOT_FOUND) {
+                ToneGenerator::WaveGenerator *lpWaveGen =
+                        new ToneGenerator::WaveGenerator(mSamplingRate,
+                                frequency,
+                                TONEGEN_GAIN/lNumWaves);
+                mWaveGens.add(frequency, lpWaveGen);
+            }
+            frequency = mpNewToneDesc->segments[segmentIdx].waveFreq[++freqIdx];
+        }
+        segmentIdx++;
+    }
+
+    // Initialize tone sequencer
+    mTotalSmp = 0;
+    mCurSegment = 0;
+    mCurCount = 0;
+    mLoopCounter = 0;
+    if (mpToneDesc->segments[0].duration == TONEGEN_INF) {
+        mNextSegSmp = TONEGEN_INF;
+    } else{
+        mNextSegSmp = (mpToneDesc->segments[0].duration * mSamplingRate) / 1000;
+    }
+
+    return true;
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        ToneGenerator::numWaves()
+//
+//    Description:    Count number of sine waves needed to generate a tone segment (e.g 2 for DTMF).
+//
+//    Input:
+//        segmentIdx        tone segment index
+//
+//    Output:
+//        returned value:    nummber of sine waves
+//
+////////////////////////////////////////////////////////////////////////////////
+unsigned int ToneGenerator::numWaves(unsigned int segmentIdx) {
+    unsigned int lCnt = 0;
+
+    if (mpToneDesc->segments[segmentIdx].duration) {
+        while (mpToneDesc->segments[segmentIdx].waveFreq[lCnt]) {
+            lCnt++;
+        }
+        lCnt++;
+    }
+
+    return lCnt;
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        ToneGenerator::clearWaveGens()
+//
+//    Description:    Removes all wave generators.
+//
+//    Input:
+//        none
+//
+//    Output:
+//        none
+//
+////////////////////////////////////////////////////////////////////////////////
+void ToneGenerator::clearWaveGens() {
+    ALOGV("Clearing mWaveGens:");
+
+    for (size_t lIdx = 0; lIdx < mWaveGens.size(); lIdx++) {
+        delete mWaveGens.valueAt(lIdx);
+    }
+    mWaveGens.clear();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:       ToneGenerator::getToneForRegion()
+//
+//    Description:  Get correct ringtone type according to current region.
+//      The corrected ring tone type is the tone descriptor index in sToneDescriptors[].
+//
+//    Input:
+//        none
+//
+//    Output:
+//        none
+//
+////////////////////////////////////////////////////////////////////////////////
+ToneGenerator::tone_type ToneGenerator::getToneForRegion(tone_type toneType) {
+    tone_type regionTone;
+
+    if (mRegion == CEPT || toneType < FIRST_SUP_TONE || toneType > LAST_SUP_TONE) {
+        regionTone = toneType;
+    } else {
+        regionTone = (tone_type) sToneMappingTable[mRegion][toneType - FIRST_SUP_TONE];
+    }
+
+    ALOGV("getToneForRegion, tone %d, region %d, regionTone %d", toneType, mRegion, regionTone);
+
+    return regionTone;
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+//                WaveGenerator::WaveGenerator class    Implementation
+////////////////////////////////////////////////////////////////////////////////
+
+//---------------------------------- public methods ----------------------------
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        WaveGenerator::WaveGenerator()
+//
+//    Description:    Constructor.
+//
+//    Input:
+//        samplingRate:    Output sampling rate in Hz
+//        frequency:       Frequency of the sine wave to generate in Hz
+//        volume:          volume (0.0 to 1.0)
+//
+//    Output:
+//        none
+//
+////////////////////////////////////////////////////////////////////////////////
+ToneGenerator::WaveGenerator::WaveGenerator(uint32_t samplingRate,
+        unsigned short frequency, float volume) {
+    double d0;
+    double F_div_Fs;  // frequency / samplingRate
+
+    F_div_Fs = frequency / (double)samplingRate;
+    d0 = - (float)GEN_AMP * sin(2 * M_PI * F_div_Fs);
+    mS2_0 = (short)d0;
+    mS1 = 0;
+    mS2 = mS2_0;
+
+    mAmplitude_Q15 = (short)(32767. * 32767. * volume / GEN_AMP);
+    // take some margin for amplitude fluctuation
+    if (mAmplitude_Q15 > 32500)
+        mAmplitude_Q15 = 32500;
+
+    d0 = 32768.0 * cos(2 * M_PI * F_div_Fs);  // Q14*2*cos()
+    if (d0 > 32767)
+        d0 = 32767;
+    mA1_Q14 = (short) d0;
+
+    ALOGV("WaveGenerator init, mA1_Q14: %d, mS2_0: %d, mAmplitude_Q15: %d",
+            mA1_Q14, mS2_0, mAmplitude_Q15);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        WaveGenerator::~WaveGenerator()
+//
+//    Description:    Destructor.
+//
+//    Input:
+//        none
+//
+//    Output:
+//        none
+//
+////////////////////////////////////////////////////////////////////////////////
+ToneGenerator::WaveGenerator::~WaveGenerator() {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+//    Method:        WaveGenerator::getSamples()
+//
+//    Description:    Generates count samples of a sine wave and accumulates
+//        result in outBuffer.
+//
+//    Input:
+//        outBuffer:      Output buffer where to accumulate samples.
+//        count:          number of samples to produce.
+//        command:        special action requested (see enum gen_command).
+//
+//    Output:
+//        none
+//
+////////////////////////////////////////////////////////////////////////////////
+void ToneGenerator::WaveGenerator::getSamples(short *outBuffer,
+        unsigned int count, unsigned int command) {
+    long lS1, lS2;
+    long lA1, lAmplitude;
+    long Sample;  // current sample
+
+    // init local
+    if (command == WAVEGEN_START) {
+        lS1 = (long)0;
+        lS2 = (long)mS2_0;
+    } else {
+        lS1 = mS1;
+        lS2 = mS2;
+    }
+    lA1 = (long)mA1_Q14;
+    lAmplitude = (long)mAmplitude_Q15;
+
+    if (command == WAVEGEN_STOP) {
+        lAmplitude <<= 16;
+        if (count == 0) {
+            return;
+        }
+        long dec = lAmplitude/count;
+        // loop generation
+        while (count) {
+            count--;
+            Sample = ((lA1 * lS1) >> S_Q14) - lS2;
+            // shift delay
+            lS2 = lS1;
+            lS1 = Sample;
+            Sample = ((lAmplitude>>16) * Sample) >> S_Q15;
+            *(outBuffer++) += (short)Sample;  // put result in buffer
+            lAmplitude -= dec;
+        }
+    } else {
+        // loop generation
+        while (count) {
+            count--;
+            Sample = ((lA1 * lS1) >> S_Q14) - lS2;
+            // shift delay
+            lS2 = lS1;
+            lS1 = Sample;
+            Sample = (lAmplitude * Sample) >> S_Q15;
+            *(outBuffer++) += (short)Sample;  // put result in buffer
+        }
+    }
+
+    // save status
+    mS1 = lS1;
+    mS2 = lS2;
+}
+
+}  // end namespace android
diff --git a/media/libaudioclient/TrackPlayerBase.cpp b/media/libaudioclient/TrackPlayerBase.cpp
new file mode 100644
index 0000000..48cd803
--- /dev/null
+++ b/media/libaudioclient/TrackPlayerBase.cpp
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/TrackPlayerBase.h>
+
+namespace android {
+
+//--------------------------------------------------------------------------------------------------
+TrackPlayerBase::TrackPlayerBase() : PlayerBase(),
+        mPlayerVolumeL(1.0f), mPlayerVolumeR(1.0f)
+{
+    ALOGD("TrackPlayerBase::TrackPlayerBase()");
+}
+
+
+TrackPlayerBase::~TrackPlayerBase() {
+    ALOGD("TrackPlayerBase::~TrackPlayerBase()");
+    doDestroy();
+}
+
+void TrackPlayerBase::init(AudioTrack* pat, player_type_t playerType, audio_usage_t usage) {
+    PlayerBase::init(playerType, usage);
+    mAudioTrack = pat;
+}
+
+void TrackPlayerBase::destroy() {
+    doDestroy();
+    baseDestroy();
+}
+
+void TrackPlayerBase::doDestroy() {
+    if (mAudioTrack != 0) {
+        mAudioTrack->stop();
+        // Note that there may still be another reference in post-unlock phase of SetPlayState
+        mAudioTrack.clear();
+    }
+}
+
+void TrackPlayerBase::setPlayerVolume(float vl, float vr) {
+    {
+        Mutex::Autolock _l(mSettingsLock);
+        mPlayerVolumeL = vl;
+        mPlayerVolumeR = vr;
+    }
+    doSetVolume();
+}
+
+//------------------------------------------------------------------------------
+// Implementation of IPlayer
+status_t TrackPlayerBase::playerStart() {
+    status_t status = NO_INIT;
+    if (mAudioTrack != 0) {
+        status = mAudioTrack->start();
+    }
+    return status;
+}
+
+status_t TrackPlayerBase::playerPause() {
+    status_t status = NO_INIT;
+    if (mAudioTrack != 0) {
+        mAudioTrack->pause();
+        status = NO_ERROR;
+    }
+    return status;
+}
+
+
+status_t TrackPlayerBase::playerStop() {
+    status_t status = NO_INIT;
+    if (mAudioTrack != 0) {
+        mAudioTrack->stop();
+        status = NO_ERROR;
+    }
+    return status;
+}
+
+status_t TrackPlayerBase::playerSetVolume() {
+    return doSetVolume();
+}
+
+status_t TrackPlayerBase::doSetVolume() {
+    status_t status = NO_INIT;
+    if (mAudioTrack != 0) {
+        float tl = mPlayerVolumeL * mPanMultiplierL * mVolumeMultiplierL;
+        float tr = mPlayerVolumeR * mPanMultiplierR * mVolumeMultiplierR;
+        mAudioTrack->setVolume(tl, tr);
+        status = NO_ERROR;
+    }
+    return status;
+}
+
+
+void TrackPlayerBase::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation) {
+    if (mAudioTrack != 0) {
+        ALOGD("TrackPlayerBase::applyVolumeShaper() from IPlayer");
+        VolumeShaper::Status status = mAudioTrack->applyVolumeShaper(configuration, operation);
+        if (status < 0) { // a non-negative value is the volume shaper id.
+            ALOGE("TrackPlayerBase::applyVolumeShaper() failed with status %d", status);
+        }
+    } else {
+        ALOGD("TrackPlayerBase::applyVolumeShaper()"
+                " no AudioTrack for volume control from IPlayer");
+    }
+}
+
+} // namespace android
diff --git a/include/media/AudioBufferProvider.h b/media/libaudioclient/include/media/AudioBufferProvider.h
similarity index 100%
rename from include/media/AudioBufferProvider.h
rename to media/libaudioclient/include/media/AudioBufferProvider.h
diff --git a/media/libaudioclient/include/media/AudioEffect.h b/media/libaudioclient/include/media/AudioEffect.h
new file mode 100644
index 0000000..bfc068b
--- /dev/null
+++ b/media/libaudioclient/include/media/AudioEffect.h
@@ -0,0 +1,488 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIOEFFECT_H
+#define ANDROID_AUDIOEFFECT_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <media/IAudioFlinger.h>
+#include <media/IAudioPolicyService.h>
+#include <media/IEffect.h>
+#include <media/IEffectClient.h>
+#include <media/AudioSystem.h>
+#include <system/audio_effect.h>
+
+#include <utils/RefBase.h>
+#include <utils/Errors.h>
+#include <binder/IInterface.h>
+
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+struct effect_param_cblk_t;
+
+// ----------------------------------------------------------------------------
+
+class AudioEffect : public RefBase
+{
+public:
+
+    /*
+     *  Static methods for effects enumeration.
+     */
+
+    /*
+     * Returns the number of effects available. This method together
+     * with queryEffect() is used to enumerate all effects:
+     * The enumeration sequence is:
+     *      queryNumberEffects(&num_effects);
+     *      for (i = 0; i < num_effects; i++)
+     *          queryEffect(i,...);
+     *
+     * Parameters:
+     *      numEffects:    address where the number of effects should be returned.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR   successful operation.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *      NO_INIT    effect library failed to initialize
+     *      BAD_VALUE  invalid numEffects pointer
+     *
+     * Returned value
+     *   *numEffects:     updated with number of effects available
+     */
+    static status_t queryNumberEffects(uint32_t *numEffects);
+
+    /*
+     * Returns an effect descriptor during effect
+     * enumeration.
+     *
+     * Parameters:
+     *      index:      index of the queried effect.
+     *      descriptor: address where the effect descriptor should be returned.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR        successful operation.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *      NO_INIT         effect library failed to initialize
+     *      BAD_VALUE       invalid descriptor pointer or index
+     *      INVALID_OPERATION  effect list has changed since last execution of queryNumberEffects()
+     *
+     * Returned value
+     *   *descriptor:     updated with effect descriptor
+     */
+    static status_t queryEffect(uint32_t index, effect_descriptor_t *descriptor);
+
+
+    /*
+     * Returns the descriptor for the specified effect uuid.
+     *
+     * Parameters:
+     *      uuid:       pointer to effect uuid.
+     *      descriptor: address where the effect descriptor should be returned.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR        successful operation.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *      NO_INIT         effect library failed to initialize
+     *      BAD_VALUE       invalid uuid or descriptor pointers
+     *      NAME_NOT_FOUND  no effect with this uuid found
+     *
+     * Returned value
+     *   *descriptor updated with effect descriptor
+     */
+    static status_t getEffectDescriptor(const effect_uuid_t *uuid,
+                                        effect_descriptor_t *descriptor) /*const*/;
+
+
+    /*
+     * Returns a list of descriptors corresponding to the pre processings enabled by default
+     * on an AudioRecord with the supplied audio session ID.
+     *
+     * Parameters:
+     *      audioSession:  audio session ID.
+     *      descriptors: address where the effect descriptors should be returned.
+     *      count: as input, the maximum number of descriptor than should be returned
+     *             as output, the number of descriptor returned if status is NO_ERROR or the actual
+     *             number of enabled pre processings if status is NO_MEMORY
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR        successful operation.
+     *      NO_MEMORY       the number of descriptor to return is more than the maximum number
+     *                      indicated by count.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *      NO_INIT         effect library failed to initialize
+     *      BAD_VALUE       invalid audio session or descriptor pointers
+     *
+     * Returned value
+     *   *descriptor updated with descriptors of pre processings enabled by default
+     *   *count      number of descriptors returned if returned status is NO_ERROR.
+     *               total number of pre processing enabled by default if returned status is
+     *               NO_MEMORY. This happens if the count passed as input is less than the number
+     *               of descriptors to return.
+     *               *count is limited to kMaxPreProcessing on return.
+     */
+    static status_t queryDefaultPreProcessing(audio_session_t audioSession,
+                                              effect_descriptor_t *descriptors,
+                                              uint32_t *count);
+
+    /*
+     * Events used by callback function (effect_callback_t).
+     */
+    enum event_type {
+        EVENT_CONTROL_STATUS_CHANGED = 0,
+        EVENT_ENABLE_STATUS_CHANGED = 1,
+        EVENT_PARAMETER_CHANGED = 2,
+        EVENT_ERROR = 3
+    };
+
+    /* Callback function notifying client application of a change in effect engine state or
+     * configuration.
+     * An effect engine can be shared by several applications but only one has the control
+     * of the engine activity and configuration at a time.
+     * The EVENT_CONTROL_STATUS_CHANGED event is received when an application loses or
+     * retrieves the control of the effect engine. Loss of control happens
+     * if another application requests the use of the engine by creating an AudioEffect for
+     * the same effect type but with a higher priority. Control is returned when the
+     * application having the control deletes its AudioEffect object.
+     * The EVENT_ENABLE_STATUS_CHANGED event is received by all applications not having the
+     * control of the effect engine when the effect is enabled or disabled.
+     * The EVENT_PARAMETER_CHANGED event is received by all applications not having the
+     * control of the effect engine when an effect parameter is changed.
+     * The EVENT_ERROR event is received when the media server process dies.
+     *
+     * Parameters:
+     *
+     * event:   type of event notified (see enum AudioEffect::event_type).
+     * user:    Pointer to context for use by the callback receiver.
+     * info:    Pointer to optional parameter according to event type:
+     *  - EVENT_CONTROL_STATUS_CHANGED:  boolean indicating if control is granted (true)
+     *  or stolen (false).
+     *  - EVENT_ENABLE_STATUS_CHANGED: boolean indicating if effect is now enabled (true)
+     *  or disabled (false).
+     *  - EVENT_PARAMETER_CHANGED: pointer to a effect_param_t structure.
+     *  - EVENT_ERROR:  status_t indicating the error (DEAD_OBJECT when media server dies).
+     */
+
+    typedef void (*effect_callback_t)(int32_t event, void* user, void *info);
+
+
+    /* Constructor.
+     * AudioEffect is the base class for creating and controlling an effect engine from
+     * the application process. Creating an AudioEffect object will create the effect engine
+     * in the AudioFlinger if no engine of the specified type exists. If one exists, this engine
+     * will be used. The application creating the AudioEffect object (or a derived class like
+     * Reverb for instance) will either receive control of the effect engine or not, depending
+     * on the priority parameter. If priority is higher than the priority used by the current
+     * effect engine owner, the control will be transfered to the new application. Otherwise
+     * control will remain to the previous application. In this case, the new application will be
+     * notified of changes in effect engine state or control ownership by the effect callback.
+     * After creating the AudioEffect, the application must call the initCheck() method and
+     * check the creation status before trying to control the effect engine (see initCheck()).
+     * If the effect is to be applied to an AudioTrack or MediaPlayer only the application
+     * must specify the audio session ID corresponding to this player.
+     */
+
+    /* Simple Constructor.
+     *
+     * Parameters:
+     *
+     * opPackageName:      The package name used for app op checks.
+     */
+    AudioEffect(const String16& opPackageName);
+
+
+    /* Constructor.
+     *
+     * Parameters:
+     *
+     * type:  type of effect created: can be null if uuid is specified. This corresponds to
+     *        the OpenSL ES interface implemented by this effect.
+     * opPackageName:  The package name used for app op checks.
+     * uuid:  Uuid of effect created: can be null if type is specified. This uuid corresponds to
+     *        a particular implementation of an effect type.
+     * priority:    requested priority for effect control: the priority level corresponds to the
+     *      value of priority parameter: negative values indicate lower priorities, positive values
+     *      higher priorities, 0 being the normal priority.
+     * cbf:         optional callback function (see effect_callback_t)
+     * user:        pointer to context for use by the callback receiver.
+     * sessionID:   audio session this effect is associated to.
+     *      If equal to AUDIO_SESSION_OUTPUT_MIX, the effect will be global to
+     *      the output mix.  Otherwise, the effect will be applied to all players
+     *      (AudioTrack or MediaPLayer) within the same audio session.
+     * io:  HAL audio output or input stream to which this effect must be attached. Leave at 0 for
+     *      automatic output selection by AudioFlinger.
+     */
+
+    AudioEffect(const effect_uuid_t *type,
+                const String16& opPackageName,
+                const effect_uuid_t *uuid = NULL,
+                  int32_t priority = 0,
+                  effect_callback_t cbf = NULL,
+                  void* user = NULL,
+                  audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
+                  audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
+                  );
+
+    /* Constructor.
+     *      Same as above but with type and uuid specified by character strings
+     */
+    AudioEffect(const char *typeStr,
+                    const String16& opPackageName,
+                    const char *uuidStr = NULL,
+                    int32_t priority = 0,
+                    effect_callback_t cbf = NULL,
+                    void* user = NULL,
+                    audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
+                    audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
+                    );
+
+    /* Terminates the AudioEffect and unregisters it from AudioFlinger.
+     * The effect engine is also destroyed if this AudioEffect was the last controlling
+     * the engine.
+     */
+                        ~AudioEffect();
+
+    /* Initialize an uninitialized AudioEffect.
+    * Returned status (from utils/Errors.h) can be:
+    *  - NO_ERROR or ALREADY_EXISTS: successful initialization
+    *  - INVALID_OPERATION: AudioEffect is already initialized
+    *  - BAD_VALUE: invalid parameter
+    *  - NO_INIT: audio flinger or audio hardware not initialized
+    * */
+            status_t    set(const effect_uuid_t *type,
+                            const effect_uuid_t *uuid = NULL,
+                            int32_t priority = 0,
+                            effect_callback_t cbf = NULL,
+                            void* user = NULL,
+                            audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
+                            audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
+                            );
+
+    /* Result of constructing the AudioEffect. This must be checked
+     * before using any AudioEffect API.
+     * initCheck() can return:
+     *  - NO_ERROR:    the effect engine is successfully created and the application has control.
+     *  - ALREADY_EXISTS: the effect engine is successfully created but the application does not
+     *              have control.
+     *  - NO_INIT:     the effect creation failed.
+     *
+     */
+            status_t    initCheck() const;
+
+
+    /* Returns the unique effect Id for the controlled effect engine. This ID is unique
+     * system wide and is used for instance in the case of auxiliary effects to attach
+     * the effect to an AudioTrack or MediaPlayer.
+     *
+     */
+            int32_t     id() const { return mId; }
+
+    /* Returns a descriptor for the effect (see effect_descriptor_t in audio_effect.h).
+     */
+            effect_descriptor_t descriptor() const;
+
+    /* Returns effect control priority of this AudioEffect object.
+     */
+            int32_t     priority() const { return mPriority; }
+
+
+    /* Enables or disables the effect engine.
+     *
+     * Parameters:
+     *  enabled: requested enable state.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the application does not have control of the effect engine or the
+     *  effect is already in the requested state.
+     */
+    virtual status_t    setEnabled(bool enabled);
+            bool        getEnabled() const;
+
+    /* Sets a parameter value.
+     *
+     * Parameters:
+     *      param:  pointer to effect_param_t structure containing the parameter
+     *          and its value (See audio_effect.h).
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation.
+     *  - INVALID_OPERATION: the application does not have control of the effect engine.
+     *  - BAD_VALUE: invalid parameter identifier or value.
+     *  - DEAD_OBJECT: the effect engine has been deleted.
+     */
+     virtual status_t   setParameter(effect_param_t *param);
+
+    /* Prepare a new parameter value that will be set by next call to
+     * setParameterCommit(). This method can be used to set multiple parameters
+     * in a synchronous manner or to avoid multiple binder calls for each
+     * parameter.
+     *
+     * Parameters:
+     *      param:  pointer to effect_param_t structure containing the parameter
+     *          and its value (See audio_effect.h).
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation.
+     *  - INVALID_OPERATION: the application does not have control of the effect engine.
+     *  - NO_MEMORY: no more space available in shared memory used for deferred parameter
+     *  setting.
+     */
+     virtual status_t   setParameterDeferred(effect_param_t *param);
+
+     /* Commit all parameter values previously prepared by setParameterDeferred().
+      *
+      * Parameters:
+      *     none
+      *
+      * Returned status (from utils/Errors.h) can be:
+      *  - NO_ERROR: successful operation.
+      *  - INVALID_OPERATION: No new parameter values ready for commit.
+      *  - BAD_VALUE: invalid parameter identifier or value: there is no indication
+      *     as to which of the parameters caused this error.
+      *  - DEAD_OBJECT: the effect engine has been deleted.
+      */
+     virtual status_t   setParameterCommit();
+
+    /* Gets a parameter value.
+     *
+     * Parameters:
+     *      param:  pointer to effect_param_t structure containing the parameter
+     *          and the returned value (See audio_effect.h).
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation.
+     *  - INVALID_OPERATION: the AudioEffect was not successfully initialized.
+     *  - BAD_VALUE: invalid parameter identifier.
+     *  - DEAD_OBJECT: the effect engine has been deleted.
+     */
+     virtual status_t   getParameter(effect_param_t *param);
+
+     /* Sends a command and receives a response to/from effect engine.
+      *     See audio_effect.h for details on effect command() function, valid command codes
+      *     and formats.
+      */
+     virtual status_t command(uint32_t cmdCode,
+                              uint32_t cmdSize,
+                              void *cmdData,
+                              uint32_t *replySize,
+                              void *replyData);
+
+
+     /*
+      * Utility functions.
+      */
+
+     /* Converts the string passed as first argument to the effect_uuid_t
+      * pointed to by second argument
+      */
+     static status_t stringToGuid(const char *str, effect_uuid_t *guid);
+     /* Converts the effect_uuid_t pointed to by first argument to the
+      * string passed as second argument
+      */
+     static status_t guidToString(const effect_uuid_t *guid, char *str, size_t maxLen);
+
+     // kMaxPreProcessing is a reasonable value for the maximum number of preprocessing effects
+     // that can be applied simultaneously.
+     static const uint32_t kMaxPreProcessing = 10;
+
+protected:
+     bool                    mEnabled;           // enable state
+     audio_session_t         mSessionId;         // audio session ID
+     int32_t                 mPriority;          // priority for effect control
+     status_t                mStatus;            // effect status
+     effect_callback_t       mCbf;               // callback function for status, control and
+                                                 // parameter changes notifications
+     void*                   mUserData;          // client context for callback function
+     effect_descriptor_t     mDescriptor;        // effect descriptor
+     int32_t                 mId;                // system wide unique effect engine instance ID
+     Mutex                   mLock;              // Mutex for mEnabled access
+
+     String16                mOpPackageName;     // The package name used for app op checks.
+
+     // IEffectClient
+     virtual void controlStatusChanged(bool controlGranted);
+     virtual void enableStatusChanged(bool enabled);
+     virtual void commandExecuted(uint32_t cmdCode,
+             uint32_t cmdSize,
+             void *pCmdData,
+             uint32_t replySize,
+             void *pReplyData);
+
+private:
+
+     // Implements the IEffectClient interface
+    class EffectClient :
+        public android::BnEffectClient, public android::IBinder::DeathRecipient
+    {
+    public:
+
+        EffectClient(AudioEffect *effect) : mEffect(effect){}
+
+        // IEffectClient
+        virtual void controlStatusChanged(bool controlGranted) {
+            sp<AudioEffect> effect = mEffect.promote();
+            if (effect != 0) {
+                effect->controlStatusChanged(controlGranted);
+            }
+        }
+        virtual void enableStatusChanged(bool enabled) {
+            sp<AudioEffect> effect = mEffect.promote();
+            if (effect != 0) {
+                effect->enableStatusChanged(enabled);
+            }
+        }
+        virtual void commandExecuted(uint32_t cmdCode,
+                                     uint32_t cmdSize,
+                                     void *pCmdData,
+                                     uint32_t replySize,
+                                     void *pReplyData) {
+            sp<AudioEffect> effect = mEffect.promote();
+            if (effect != 0) {
+                effect->commandExecuted(
+                    cmdCode, cmdSize, pCmdData, replySize, pReplyData);
+            }
+        }
+
+        // IBinder::DeathRecipient
+        virtual void binderDied(const wp<IBinder>& /*who*/) {
+            sp<AudioEffect> effect = mEffect.promote();
+            if (effect != 0) {
+                effect->binderDied();
+            }
+        }
+
+    private:
+        wp<AudioEffect> mEffect;
+    };
+
+    void binderDied();
+
+    sp<IEffect>             mIEffect;           // IEffect binder interface
+    sp<EffectClient>        mIEffectClient;     // IEffectClient implementation
+    sp<IMemory>             mCblkMemory;        // shared memory for deferred parameter setting
+    effect_param_cblk_t*    mCblk;              // control block for deferred parameter setting
+    pid_t                   mClientPid;
+};
+
+
+}; // namespace android
+
+#endif // ANDROID_AUDIOEFFECT_H
diff --git a/include/media/AudioIoDescriptor.h b/media/libaudioclient/include/media/AudioIoDescriptor.h
similarity index 100%
rename from include/media/AudioIoDescriptor.h
rename to media/libaudioclient/include/media/AudioIoDescriptor.h
diff --git a/media/libaudioclient/include/media/AudioMixer.h b/media/libaudioclient/include/media/AudioMixer.h
new file mode 100644
index 0000000..87ada76
--- /dev/null
+++ b/media/libaudioclient/include/media/AudioMixer.h
@@ -0,0 +1,389 @@
+/*
+**
+** Copyright 2007, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#ifndef ANDROID_AUDIO_MIXER_H
+#define ANDROID_AUDIO_MIXER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <media/AudioBufferProvider.h>
+#include <media/AudioResampler.h>
+#include <media/AudioResamplerPublic.h>
+#include <media/BufferProviders.h>
+#include <media/nbaio/NBLog.h>
+#include <system/audio.h>
+#include <utils/Compat.h>
+#include <utils/threads.h>
+
+// FIXME This is actually unity gain, which might not be max in future, expressed in U.12
+#define MAX_GAIN_INT AudioMixer::UNITY_GAIN_INT
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class AudioMixer
+{
+public:
+                            AudioMixer(size_t frameCount, uint32_t sampleRate,
+                                       uint32_t maxNumTracks = MAX_NUM_TRACKS);
+
+    /*virtual*/             ~AudioMixer();  // non-virtual saves a v-table, restore if sub-classed
+
+
+    // This mixer has a hard-coded upper limit of 32 active track inputs.
+    // Adding support for > 32 tracks would require more than simply changing this value.
+    static const uint32_t MAX_NUM_TRACKS = 32;
+    // maximum number of channels supported by the mixer
+
+    // This mixer has a hard-coded upper limit of 8 channels for output.
+    static const uint32_t MAX_NUM_CHANNELS = 8;
+    static const uint32_t MAX_NUM_VOLUMES = 2; // stereo volume only
+    // maximum number of channels supported for the content
+    static const uint32_t MAX_NUM_CHANNELS_TO_DOWNMIX = AUDIO_CHANNEL_COUNT_MAX;
+
+    static const uint16_t UNITY_GAIN_INT = 0x1000;
+    static const CONSTEXPR float UNITY_GAIN_FLOAT = 1.0f;
+
+    enum { // names
+
+        // track names (MAX_NUM_TRACKS units)
+        TRACK0          = 0x1000,
+
+        // 0x2000 is unused
+
+        // setParameter targets
+        TRACK           = 0x3000,
+        RESAMPLE        = 0x3001,
+        RAMP_VOLUME     = 0x3002, // ramp to new volume
+        VOLUME          = 0x3003, // don't ramp
+        TIMESTRETCH     = 0x3004,
+
+        // set Parameter names
+        // for target TRACK
+        CHANNEL_MASK    = 0x4000,
+        FORMAT          = 0x4001,
+        MAIN_BUFFER     = 0x4002,
+        AUX_BUFFER      = 0x4003,
+        DOWNMIX_TYPE    = 0X4004,
+        MIXER_FORMAT    = 0x4005, // AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
+        MIXER_CHANNEL_MASK = 0x4006, // Channel mask for mixer output
+        // for target RESAMPLE
+        SAMPLE_RATE     = 0x4100, // Configure sample rate conversion on this track name;
+                                  // parameter 'value' is the new sample rate in Hz.
+                                  // Only creates a sample rate converter the first time that
+                                  // the track sample rate is different from the mix sample rate.
+                                  // If the new sample rate is the same as the mix sample rate,
+                                  // and a sample rate converter already exists,
+                                  // then the sample rate converter remains present but is a no-op.
+        RESET           = 0x4101, // Reset sample rate converter without changing sample rate.
+                                  // This clears out the resampler's input buffer.
+        REMOVE          = 0x4102, // Remove the sample rate converter on this track name;
+                                  // the track is restored to the mix sample rate.
+        // for target RAMP_VOLUME and VOLUME (8 channels max)
+        // FIXME use float for these 3 to improve the dynamic range
+        VOLUME0         = 0x4200,
+        VOLUME1         = 0x4201,
+        AUXLEVEL        = 0x4210,
+        // for target TIMESTRETCH
+        PLAYBACK_RATE   = 0x4300, // Configure timestretch on this track name;
+                                  // parameter 'value' is a pointer to the new playback rate.
+    };
+
+
+    // For all APIs with "name": TRACK0 <= name < TRACK0 + MAX_NUM_TRACKS
+
+    // Allocate a track name.  Returns new track name if successful, -1 on failure.
+    // The failure could be because of an invalid channelMask or format, or that
+    // the track capacity of the mixer is exceeded.
+    int         getTrackName(audio_channel_mask_t channelMask,
+                             audio_format_t format, int sessionId);
+
+    // Free an allocated track by name
+    void        deleteTrackName(int name);
+
+    // Enable or disable an allocated track by name
+    void        enable(int name);
+    void        disable(int name);
+
+    void        setParameter(int name, int target, int param, void *value);
+
+    void        setBufferProvider(int name, AudioBufferProvider* bufferProvider);
+    void        process();
+
+    uint32_t    trackNames() const { return mTrackNames; }
+
+    size_t      getUnreleasedFrames(int name) const;
+
+    static inline bool isValidPcmTrackFormat(audio_format_t format) {
+        switch (format) {
+        case AUDIO_FORMAT_PCM_8_BIT:
+        case AUDIO_FORMAT_PCM_16_BIT:
+        case AUDIO_FORMAT_PCM_24_BIT_PACKED:
+        case AUDIO_FORMAT_PCM_32_BIT:
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return true;
+        default:
+            return false;
+        }
+    }
+
+private:
+
+    enum {
+        // FIXME this representation permits up to 8 channels
+        NEEDS_CHANNEL_COUNT__MASK   = 0x00000007,
+    };
+
+    enum {
+        NEEDS_CHANNEL_1             = 0x00000000,   // mono
+        NEEDS_CHANNEL_2             = 0x00000001,   // stereo
+
+        // sample format is not explicitly specified, and is assumed to be AUDIO_FORMAT_PCM_16_BIT
+
+        NEEDS_MUTE                  = 0x00000100,
+        NEEDS_RESAMPLE              = 0x00001000,
+        NEEDS_AUX                   = 0x00010000,
+    };
+
+    struct state_t;
+    struct track_t;
+
+    typedef void (*hook_t)(track_t* t, int32_t* output, size_t numOutFrames, int32_t* temp,
+                           int32_t* aux);
+    static const int BLOCKSIZE = 16; // 4 cache lines
+
+    struct track_t {
+        uint32_t    needs;
+
+        // TODO: Eventually remove legacy integer volume settings
+        union {
+        int16_t     volume[MAX_NUM_VOLUMES]; // U4.12 fixed point (top bit should be zero)
+        int32_t     volumeRL;
+        };
+
+        int32_t     prevVolume[MAX_NUM_VOLUMES];
+
+        // 16-byte boundary
+
+        int32_t     volumeInc[MAX_NUM_VOLUMES];
+        int32_t     auxInc;
+        int32_t     prevAuxLevel;
+
+        // 16-byte boundary
+
+        int16_t     auxLevel;       // 0 <= auxLevel <= MAX_GAIN_INT, but signed for mul performance
+        uint16_t    frameCount;
+
+        uint8_t     channelCount;   // 1 or 2, redundant with (needs & NEEDS_CHANNEL_COUNT__MASK)
+        uint8_t     unused_padding; // formerly format, was always 16
+        uint16_t    enabled;        // actually bool
+        audio_channel_mask_t channelMask;
+
+        // actual buffer provider used by the track hooks, see DownmixerBufferProvider below
+        //  for how the Track buffer provider is wrapped by another one when dowmixing is required
+        AudioBufferProvider*                bufferProvider;
+
+        // 16-byte boundary
+
+        mutable AudioBufferProvider::Buffer buffer; // 8 bytes
+
+        hook_t      hook;
+        const void* in;             // current location in buffer
+
+        // 16-byte boundary
+
+        AudioResampler*     resampler;
+        uint32_t            sampleRate;
+        int32_t*           mainBuffer;
+        int32_t*           auxBuffer;
+
+        // 16-byte boundary
+
+        /* Buffer providers are constructed to translate the track input data as needed.
+         *
+         * TODO: perhaps make a single PlaybackConverterProvider class to move
+         * all pre-mixer track buffer conversions outside the AudioMixer class.
+         *
+         * 1) mInputBufferProvider: The AudioTrack buffer provider.
+         * 2) mReformatBufferProvider: If not NULL, performs the audio reformat to
+         *    match either mMixerInFormat or mDownmixRequiresFormat, if the downmixer
+         *    requires reformat. For example, it may convert floating point input to
+         *    PCM_16_bit if that's required by the downmixer.
+         * 3) downmixerBufferProvider: If not NULL, performs the channel remixing to match
+         *    the number of channels required by the mixer sink.
+         * 4) mPostDownmixReformatBufferProvider: If not NULL, performs reformatting from
+         *    the downmixer requirements to the mixer engine input requirements.
+         * 5) mTimestretchBufferProvider: Adds timestretching for playback rate
+         */
+        AudioBufferProvider*     mInputBufferProvider;    // externally provided buffer provider.
+        PassthruBufferProvider*  mReformatBufferProvider; // provider wrapper for reformatting.
+        PassthruBufferProvider*  downmixerBufferProvider; // wrapper for channel conversion.
+        PassthruBufferProvider*  mPostDownmixReformatBufferProvider;
+        PassthruBufferProvider*  mTimestretchBufferProvider;
+
+        int32_t     sessionId;
+
+        audio_format_t mMixerFormat;     // output mix format: AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
+        audio_format_t mFormat;          // input track format
+        audio_format_t mMixerInFormat;   // mix internal format AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
+                                         // each track must be converted to this format.
+        audio_format_t mDownmixRequiresFormat;  // required downmixer format
+                                                // AUDIO_FORMAT_PCM_16_BIT if 16 bit necessary
+                                                // AUDIO_FORMAT_INVALID if no required format
+
+        float          mVolume[MAX_NUM_VOLUMES];     // floating point set volume
+        float          mPrevVolume[MAX_NUM_VOLUMES]; // floating point previous volume
+        float          mVolumeInc[MAX_NUM_VOLUMES];  // floating point volume increment
+
+        float          mAuxLevel;                     // floating point set aux level
+        float          mPrevAuxLevel;                 // floating point prev aux level
+        float          mAuxInc;                       // floating point aux increment
+
+        audio_channel_mask_t mMixerChannelMask;
+        uint32_t             mMixerChannelCount;
+
+        AudioPlaybackRate    mPlaybackRate;
+
+        bool        needsRamp() { return (volumeInc[0] | volumeInc[1] | auxInc) != 0; }
+        bool        setResampler(uint32_t trackSampleRate, uint32_t devSampleRate);
+        bool        doesResample() const { return resampler != NULL; }
+        void        resetResampler() { if (resampler != NULL) resampler->reset(); }
+        void        adjustVolumeRamp(bool aux, bool useFloat = false);
+        size_t      getUnreleasedFrames() const { return resampler != NULL ?
+                                                    resampler->getUnreleasedFrames() : 0; };
+
+        status_t    prepareForDownmix();
+        void        unprepareForDownmix();
+        status_t    prepareForReformat();
+        void        unprepareForReformat();
+        bool        setPlaybackRate(const AudioPlaybackRate &playbackRate);
+        void        reconfigureBufferProviders();
+    };
+
+    typedef void (*process_hook_t)(state_t* state);
+
+    // pad to 32-bytes to fill cache line
+    struct state_t {
+        uint32_t        enabledTracks;
+        uint32_t        needsChanged;
+        size_t          frameCount;
+        process_hook_t  hook;   // one of process__*, never NULL
+        int32_t         *outputTemp;
+        int32_t         *resampleTemp;
+        NBLog::Writer*  mLog;
+        int32_t         reserved[1];
+        // FIXME allocate dynamically to save some memory when maxNumTracks < MAX_NUM_TRACKS
+        track_t         tracks[MAX_NUM_TRACKS] __attribute__((aligned(32)));
+    };
+
+    // bitmask of allocated track names, where bit 0 corresponds to TRACK0 etc.
+    uint32_t        mTrackNames;
+
+    // bitmask of configured track names; ~0 if maxNumTracks == MAX_NUM_TRACKS,
+    // but will have fewer bits set if maxNumTracks < MAX_NUM_TRACKS
+    const uint32_t  mConfiguredNames;
+
+    const uint32_t  mSampleRate;
+
+    NBLog::Writer   mDummyLog;
+public:
+    void            setLog(NBLog::Writer* log);
+private:
+    state_t         mState __attribute__((aligned(32)));
+
+    // Call after changing either the enabled status of a track, or parameters of an enabled track.
+    // OK to call more often than that, but unnecessary.
+    void invalidateState(uint32_t mask);
+
+    bool setChannelMasks(int name,
+            audio_channel_mask_t trackChannelMask, audio_channel_mask_t mixerChannelMask);
+
+    static void track__genericResample(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
+            int32_t* aux);
+    static void track__nop(track_t* t, int32_t* out, size_t numFrames, int32_t* temp, int32_t* aux);
+    static void track__16BitsStereo(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
+            int32_t* aux);
+    static void track__16BitsMono(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
+            int32_t* aux);
+    static void volumeRampStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
+            int32_t* aux);
+    static void volumeStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
+            int32_t* aux);
+
+    static void process__validate(state_t* state);
+    static void process__nop(state_t* state);
+    static void process__genericNoResampling(state_t* state);
+    static void process__genericResampling(state_t* state);
+    static void process__OneTrack16BitsStereoNoResampling(state_t* state);
+
+    static pthread_once_t   sOnceControl;
+    static void             sInitRoutine();
+
+    /* multi-format volume mixing function (calls template functions
+     * in AudioMixerOps.h).  The template parameters are as follows:
+     *
+     *   MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+     *   USEFLOATVOL (set to true if float volume is used)
+     *   ADJUSTVOL   (set to true if volume ramp parameters needs adjustment afterwards)
+     *   TO: int32_t (Q4.27) or float
+     *   TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+     *   TA: int32_t (Q4.27)
+     */
+    template <int MIXTYPE, bool USEFLOATVOL, bool ADJUSTVOL,
+        typename TO, typename TI, typename TA>
+    static void volumeMix(TO *out, size_t outFrames,
+            const TI *in, TA *aux, bool ramp, AudioMixer::track_t *t);
+
+    // multi-format process hooks
+    template <int MIXTYPE, typename TO, typename TI, typename TA>
+    static void process_NoResampleOneTrack(state_t* state);
+
+    // multi-format track hooks
+    template <int MIXTYPE, typename TO, typename TI, typename TA>
+    static void track__Resample(track_t* t, TO* out, size_t frameCount,
+            TO* temp __unused, TA* aux);
+    template <int MIXTYPE, typename TO, typename TI, typename TA>
+    static void track__NoResample(track_t* t, TO* out, size_t frameCount,
+            TO* temp __unused, TA* aux);
+
+    static void convertMixerFormat(void *out, audio_format_t mixerOutFormat,
+            void *in, audio_format_t mixerInFormat, size_t sampleCount);
+
+    // hook types
+    enum {
+        PROCESSTYPE_NORESAMPLEONETRACK,
+    };
+    enum {
+        TRACKTYPE_NOP,
+        TRACKTYPE_RESAMPLE,
+        TRACKTYPE_NORESAMPLE,
+        TRACKTYPE_NORESAMPLEMONO,
+    };
+
+    // functions for determining the proper process and track hooks.
+    static process_hook_t getProcessHook(int processType, uint32_t channelCount,
+            audio_format_t mixerInFormat, audio_format_t mixerOutFormat);
+    static hook_t getTrackHook(int trackType, uint32_t channelCount,
+            audio_format_t mixerInFormat, audio_format_t mixerOutFormat);
+};
+
+// ----------------------------------------------------------------------------
+} // namespace android
+
+#endif // ANDROID_AUDIO_MIXER_H
diff --git a/media/libaudioclient/include/media/AudioParameter.h b/media/libaudioclient/include/media/AudioParameter.h
new file mode 100644
index 0000000..1ace607
--- /dev/null
+++ b/media/libaudioclient/include/media/AudioParameter.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2008-2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIOPARAMETER_H_
+#define ANDROID_AUDIOPARAMETER_H_
+
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+
+namespace android {
+
+class AudioParameter {
+
+public:
+    AudioParameter() {}
+    AudioParameter(const String8& keyValuePairs);
+    virtual ~AudioParameter();
+
+    // reserved parameter keys for changing standard parameters with setParameters() function.
+    // Using these keys is mandatory for AudioFlinger to properly monitor audio output/input
+    // configuration changes and act accordingly.
+    //  keyRouting: to change audio routing, value is an int in audio_devices_t
+    //  keySamplingRate: to change sampling rate routing, value is an int
+    //  keyFormat: to change audio format, value is an int in audio_format_t
+    //  keyChannels: to change audio channel configuration, value is an int in audio_channels_t
+    //  keyFrameCount: to change audio output frame count, value is an int
+    //  keyInputSource: to change audio input source, value is an int in audio_source_t
+    //     (defined in media/mediarecorder.h)
+    //  keyScreenState: either "on" or "off"
+    static const char * const keyRouting;
+    static const char * const keySamplingRate;
+    static const char * const keyFormat;
+    static const char * const keyChannels;
+    static const char * const keyFrameCount;
+    static const char * const keyInputSource;
+    static const char * const keyScreenState;
+
+    //  keyBtNrec: BT SCO Noise Reduction + Echo Cancellation parameters
+    //  keyHwAvSync: get HW synchronization source identifier from a device
+    //  keyMonoOutput: Enable mono audio playback
+    //  keyStreamHwAvSync: set HW synchronization source identifier on a stream
+    static const char * const keyBtNrec;
+    static const char * const keyHwAvSync;
+    static const char * const keyMonoOutput;
+    static const char * const keyStreamHwAvSync;
+
+    //  keyStreamConnect / Disconnect: value is an int in audio_devices_t
+    static const char * const keyStreamConnect;
+    static const char * const keyStreamDisconnect;
+
+    // For querying stream capabilities. All the returned values are lists.
+    //   keyStreamSupportedFormats: audio_format_t
+    //   keyStreamSupportedChannels: audio_channel_mask_t
+    //   keyStreamSupportedSamplingRates: sampling rate values
+    static const char * const keyStreamSupportedFormats;
+    static const char * const keyStreamSupportedChannels;
+    static const char * const keyStreamSupportedSamplingRates;
+
+    static const char * const valueOn;
+    static const char * const valueOff;
+
+    static const char * const valueListSeparator;
+
+    String8 toString() const { return toStringImpl(true); }
+    String8 keysToString() const { return toStringImpl(false); }
+
+    status_t add(const String8& key, const String8& value);
+    status_t addInt(const String8& key, const int value);
+    status_t addKey(const String8& key);
+    status_t addFloat(const String8& key, const float value);
+
+    status_t remove(const String8& key);
+
+    status_t get(const String8& key, String8& value) const;
+    status_t getInt(const String8& key, int& value) const;
+    status_t getFloat(const String8& key, float& value) const;
+    status_t getAt(size_t index, String8& key) const;
+    status_t getAt(size_t index, String8& key, String8& value) const;
+
+    size_t size() const { return mParameters.size(); }
+
+private:
+    String8 mKeyValuePairs;
+    KeyedVector <String8, String8> mParameters;
+
+    String8 toStringImpl(bool useValues) const;
+};
+
+};  // namespace android
+
+#endif  /*ANDROID_AUDIOPARAMETER_H_*/
diff --git a/media/libaudioclient/include/media/AudioPolicy.h b/media/libaudioclient/include/media/AudioPolicy.h
new file mode 100644
index 0000000..8da0069
--- /dev/null
+++ b/media/libaudioclient/include/media/AudioPolicy.h
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_AUDIO_POLICY_H
+#define ANDROID_AUDIO_POLICY_H
+
+#include <system/audio.h>
+#include <system/audio_policy.h>
+#include <binder/Parcel.h>
+#include <utils/String8.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+// Keep in sync with AudioMix.java, AudioMixingRule.java, AudioPolicyConfig.java
+#define RULE_EXCLUSION_MASK 0x8000
+#define RULE_MATCH_ATTRIBUTE_USAGE           0x1
+#define RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET (0x1 << 1)
+#define RULE_MATCH_UID                      (0x1 << 2)
+#define RULE_EXCLUDE_ATTRIBUTE_USAGE  (RULE_EXCLUSION_MASK|RULE_MATCH_ATTRIBUTE_USAGE)
+#define RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET \
+                                      (RULE_EXCLUSION_MASK|RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET)
+#define RULE_EXCLUDE_UID              (RULE_EXCLUSION_MASK|RULE_MATCH_UID)
+
+#define MIX_TYPE_INVALID (-1)
+#define MIX_TYPE_PLAYERS 0
+#define MIX_TYPE_RECORDERS 1
+
+// definition of the different events that can be reported on a dynamic policy from
+//   AudioSystem's implementation of the AudioPolicyClient interface
+// keep in sync with AudioSystem.java
+#define DYNAMIC_POLICY_EVENT_MIX_STATE_UPDATE 0
+
+#define MIX_STATE_DISABLED (-1)
+#define MIX_STATE_IDLE 0
+#define MIX_STATE_MIXING 1
+
+#define MIX_ROUTE_FLAG_RENDER 0x1
+#define MIX_ROUTE_FLAG_LOOP_BACK (0x1 << 1)
+#define MIX_ROUTE_FLAG_ALL (MIX_ROUTE_FLAG_RENDER | MIX_ROUTE_FLAG_LOOP_BACK)
+
+#define MAX_MIXES_PER_POLICY 10
+#define MAX_CRITERIA_PER_MIX 20
+
+class AudioMixMatchCriterion {
+public:
+    AudioMixMatchCriterion() {}
+    AudioMixMatchCriterion(audio_usage_t usage, audio_source_t source, uint32_t rule);
+
+    status_t readFromParcel(Parcel *parcel);
+    status_t writeToParcel(Parcel *parcel) const;
+
+    union {
+        audio_usage_t   mUsage;
+        audio_source_t  mSource;
+        uid_t           mUid;
+    } mValue;
+    uint32_t        mRule;
+};
+
+class AudioMix {
+public:
+    // flag on an AudioMix indicating the activity on this mix (IDLE, MIXING)
+    //   must be reported through the AudioPolicyClient interface
+    static const uint32_t kCbFlagNotifyActivity = 0x1;
+
+    AudioMix() {}
+    AudioMix(Vector<AudioMixMatchCriterion> criteria, uint32_t mixType, audio_config_t format,
+             uint32_t routeFlags, String8 registrationId, uint32_t flags) :
+        mCriteria(criteria), mMixType(mixType), mFormat(format),
+        mRouteFlags(routeFlags), mDeviceAddress(registrationId), mCbFlags(flags){}
+
+    status_t readFromParcel(Parcel *parcel);
+    status_t writeToParcel(Parcel *parcel) const;
+
+    Vector<AudioMixMatchCriterion> mCriteria;
+    uint32_t        mMixType;
+    audio_config_t  mFormat;
+    uint32_t        mRouteFlags;
+    audio_devices_t mDeviceType;
+    String8         mDeviceAddress;
+    uint32_t        mCbFlags; // flags indicating which callbacks to use, see kCbFlag*
+};
+
+
+// definitions for audio recording configuration updates
+// which update type is reported
+#define RECORD_CONFIG_EVENT_NONE -1
+#define RECORD_CONFIG_EVENT_START 1
+#define RECORD_CONFIG_EVENT_STOP  0
+
+}; // namespace android
+
+#endif  // ANDROID_AUDIO_POLICY_H
diff --git a/media/libaudioclient/include/media/AudioPolicyHelper.h b/media/libaudioclient/include/media/AudioPolicyHelper.h
new file mode 100644
index 0000000..854057d
--- /dev/null
+++ b/media/libaudioclient/include/media/AudioPolicyHelper.h
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef AUDIO_POLICY_HELPER_H_
+#define AUDIO_POLICY_HELPER_H_
+
+#include <system/audio.h>
+
+// TODO: fix this among dependencies
+__attribute__((unused))
+static audio_stream_type_t audio_attributes_to_stream_type(const audio_attributes_t *attr)
+{
+    // flags to stream type mapping
+    if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) {
+        return AUDIO_STREAM_ENFORCED_AUDIBLE;
+    }
+    if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) {
+        return AUDIO_STREAM_BLUETOOTH_SCO;
+    }
+
+    // usage to stream type mapping
+    switch (attr->usage) {
+    case AUDIO_USAGE_MEDIA:
+    case AUDIO_USAGE_GAME:
+    case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:
+    case AUDIO_USAGE_ASSISTANT:
+        return AUDIO_STREAM_MUSIC;
+    case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY:
+        return AUDIO_STREAM_ACCESSIBILITY;
+    case AUDIO_USAGE_ASSISTANCE_SONIFICATION:
+        return AUDIO_STREAM_SYSTEM;
+    case AUDIO_USAGE_VOICE_COMMUNICATION:
+        return AUDIO_STREAM_VOICE_CALL;
+
+    case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING:
+        return AUDIO_STREAM_DTMF;
+
+    case AUDIO_USAGE_ALARM:
+        return AUDIO_STREAM_ALARM;
+    case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE:
+        return AUDIO_STREAM_RING;
+
+    case AUDIO_USAGE_NOTIFICATION:
+    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST:
+    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT:
+    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED:
+    case AUDIO_USAGE_NOTIFICATION_EVENT:
+        return AUDIO_STREAM_NOTIFICATION;
+
+    case AUDIO_USAGE_UNKNOWN:
+    default:
+        return AUDIO_STREAM_MUSIC;
+    }
+}
+
+// TODO: fix this among dependencies
+__attribute__((unused))
+static void stream_type_to_audio_attributes(audio_stream_type_t streamType,
+                                     audio_attributes_t *attr) {
+    memset(attr, 0, sizeof(audio_attributes_t));
+
+    switch (streamType) {
+    case AUDIO_STREAM_DEFAULT:
+    case AUDIO_STREAM_MUSIC:
+        attr->content_type = AUDIO_CONTENT_TYPE_MUSIC;
+        attr->usage = AUDIO_USAGE_MEDIA;
+        break;
+    case AUDIO_STREAM_VOICE_CALL:
+        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
+        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION;
+        break;
+    case AUDIO_STREAM_ENFORCED_AUDIBLE:
+        attr->flags  |= AUDIO_FLAG_AUDIBILITY_ENFORCED;
+        // intended fall through, attributes in common with STREAM_SYSTEM
+    case AUDIO_STREAM_SYSTEM:
+        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+        attr->usage = AUDIO_USAGE_ASSISTANCE_SONIFICATION;
+        break;
+    case AUDIO_STREAM_RING:
+        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+        attr->usage = AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE;
+        break;
+    case AUDIO_STREAM_ALARM:
+        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+        attr->usage = AUDIO_USAGE_ALARM;
+        break;
+    case AUDIO_STREAM_NOTIFICATION:
+        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+        attr->usage = AUDIO_USAGE_NOTIFICATION;
+        break;
+    case AUDIO_STREAM_BLUETOOTH_SCO:
+        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
+        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION;
+        attr->flags |= AUDIO_FLAG_SCO;
+        break;
+    case AUDIO_STREAM_DTMF:
+        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING;
+        break;
+    case AUDIO_STREAM_TTS:
+        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
+        attr->usage = AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY;
+        break;
+    default:
+        ALOGE("invalid stream type %d when converting to attributes", streamType);
+    }
+}
+
+#endif //AUDIO_POLICY_HELPER_H_
diff --git a/media/libaudioclient/include/media/AudioRecord.h b/media/libaudioclient/include/media/AudioRecord.h
new file mode 100644
index 0000000..1b034b5
--- /dev/null
+++ b/media/libaudioclient/include/media/AudioRecord.h
@@ -0,0 +1,666 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIORECORD_H
+#define ANDROID_AUDIORECORD_H
+
+#include <cutils/sched_policy.h>
+#include <media/AudioSystem.h>
+#include <media/AudioTimestamp.h>
+#include <media/IAudioRecord.h>
+#include <media/Modulo.h>
+#include <utils/threads.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+struct audio_track_cblk_t;
+class AudioRecordClientProxy;
+
+// ----------------------------------------------------------------------------
+
+class AudioRecord : public RefBase
+{
+public:
+
+    /* Events used by AudioRecord callback function (callback_t).
+     * Keep in sync with frameworks/base/media/java/android/media/AudioRecord.java NATIVE_EVENT_*.
+     */
+    enum event_type {
+        EVENT_MORE_DATA = 0,        // Request to read available data from buffer.
+                                    // If this event is delivered but the callback handler
+                                    // does not want to read the available data, the handler must
+                                    // explicitly ignore the event by setting frameCount to zero.
+        EVENT_OVERRUN = 1,          // Buffer overrun occurred.
+        EVENT_MARKER = 2,           // Record head is at the specified marker position
+                                    // (See setMarkerPosition()).
+        EVENT_NEW_POS = 3,          // Record head is at a new position
+                                    // (See setPositionUpdatePeriod()).
+        EVENT_NEW_IAUDIORECORD = 4, // IAudioRecord was re-created, either due to re-routing and
+                                    // voluntary invalidation by mediaserver, or mediaserver crash.
+    };
+
+    /* Client should declare a Buffer and pass address to obtainBuffer()
+     * and releaseBuffer().  See also callback_t for EVENT_MORE_DATA.
+     */
+
+    class Buffer
+    {
+    public:
+        // FIXME use m prefix
+        size_t      frameCount;     // number of sample frames corresponding to size;
+                                    // on input to obtainBuffer() it is the number of frames desired
+                                    // on output from obtainBuffer() it is the number of available
+                                    //    frames to be read
+                                    // on input to releaseBuffer() it is currently ignored
+
+        size_t      size;           // input/output in bytes == frameCount * frameSize
+                                    // on input to obtainBuffer() it is ignored
+                                    // on output from obtainBuffer() it is the number of available
+                                    //    bytes to be read, which is frameCount * frameSize
+                                    // on input to releaseBuffer() it is the number of bytes to
+                                    //    release
+                                    // FIXME This is redundant with respect to frameCount.  Consider
+                                    //    removing size and making frameCount the primary field.
+
+        union {
+            void*       raw;
+            short*      i16;        // signed 16-bit
+            int8_t*     i8;         // unsigned 8-bit, offset by 0x80
+                                    // input to obtainBuffer(): unused, output: pointer to buffer
+        };
+    };
+
+    /* As a convenience, if a callback is supplied, a handler thread
+     * is automatically created with the appropriate priority. This thread
+     * invokes the callback when a new buffer becomes available or various conditions occur.
+     * Parameters:
+     *
+     * event:   type of event notified (see enum AudioRecord::event_type).
+     * user:    Pointer to context for use by the callback receiver.
+     * info:    Pointer to optional parameter according to event type:
+     *          - EVENT_MORE_DATA: pointer to AudioRecord::Buffer struct. The callback must not read
+     *                             more bytes than indicated by 'size' field and update 'size' if
+     *                             fewer bytes are consumed.
+     *          - EVENT_OVERRUN: unused.
+     *          - EVENT_MARKER: pointer to const uint32_t containing the marker position in frames.
+     *          - EVENT_NEW_POS: pointer to const uint32_t containing the new position in frames.
+     *          - EVENT_NEW_IAUDIORECORD: unused.
+     */
+
+    typedef void (*callback_t)(int event, void* user, void *info);
+
+    /* Returns the minimum frame count required for the successful creation of
+     * an AudioRecord object.
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - NO_INIT: audio server or audio hardware not initialized
+     *  - BAD_VALUE: unsupported configuration
+     * frameCount is guaranteed to be non-zero if status is NO_ERROR,
+     * and is undefined otherwise.
+     * FIXME This API assumes a route, and so should be deprecated.
+     */
+
+     static status_t getMinFrameCount(size_t* frameCount,
+                                      uint32_t sampleRate,
+                                      audio_format_t format,
+                                      audio_channel_mask_t channelMask);
+
+    /* How data is transferred from AudioRecord
+     */
+    enum transfer_type {
+        TRANSFER_DEFAULT,   // not specified explicitly; determine from the other parameters
+        TRANSFER_CALLBACK,  // callback EVENT_MORE_DATA
+        TRANSFER_OBTAIN,    // call obtainBuffer() and releaseBuffer()
+        TRANSFER_SYNC,      // synchronous read()
+    };
+
+    /* Constructs an uninitialized AudioRecord. No connection with
+     * AudioFlinger takes place.  Use set() after this.
+     *
+     * Parameters:
+     *
+     * opPackageName:      The package name used for app ops.
+     */
+                        AudioRecord(const String16& opPackageName);
+
+    /* Creates an AudioRecord object and registers it with AudioFlinger.
+     * Once created, the track needs to be started before it can be used.
+     * Unspecified values are set to appropriate default values.
+     *
+     * Parameters:
+     *
+     * inputSource:        Select the audio input to record from (e.g. AUDIO_SOURCE_DEFAULT).
+     * sampleRate:         Data sink sampling rate in Hz.  Zero means to use the source sample rate.
+     * format:             Audio format (e.g AUDIO_FORMAT_PCM_16_BIT for signed
+     *                     16 bits per sample).
+     * channelMask:        Channel mask, such that audio_is_input_channel(channelMask) is true.
+     * opPackageName:      The package name used for app ops.
+     * frameCount:         Minimum size of track PCM buffer in frames. This defines the
+     *                     application's contribution to the
+     *                     latency of the track.  The actual size selected by the AudioRecord could
+     *                     be larger if the requested size is not compatible with current audio HAL
+     *                     latency.  Zero means to use a default value.
+     * cbf:                Callback function. If not null, this function is called periodically
+     *                     to consume new data in TRANSFER_CALLBACK mode
+     *                     and inform of marker, position updates, etc.
+     * user:               Context for use by the callback receiver.
+     * notificationFrames: The callback function is called each time notificationFrames PCM
+     *                     frames are ready in record track output buffer.
+     * sessionId:          Not yet supported.
+     * transferType:       How data is transferred from AudioRecord.
+     * flags:              See comments on audio_input_flags_t in <system/audio.h>
+     * pAttributes:        If not NULL, supersedes inputSource for use case selection.
+     * threadCanCallJava:  Not present in parameter list, and so is fixed at false.
+     */
+
+                        AudioRecord(audio_source_t inputSource,
+                                    uint32_t sampleRate,
+                                    audio_format_t format,
+                                    audio_channel_mask_t channelMask,
+                                    const String16& opPackageName,
+                                    size_t frameCount = 0,
+                                    callback_t cbf = NULL,
+                                    void* user = NULL,
+                                    uint32_t notificationFrames = 0,
+                                    audio_session_t sessionId = AUDIO_SESSION_ALLOCATE,
+                                    transfer_type transferType = TRANSFER_DEFAULT,
+                                    audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
+                                    uid_t uid = AUDIO_UID_INVALID,
+                                    pid_t pid = -1,
+                                    const audio_attributes_t* pAttributes = NULL);
+
+    /* Terminates the AudioRecord and unregisters it from AudioFlinger.
+     * Also destroys all resources associated with the AudioRecord.
+     */
+protected:
+                        virtual ~AudioRecord();
+public:
+
+    /* Initialize an AudioRecord that was created using the AudioRecord() constructor.
+     * Don't call set() more than once, or after an AudioRecord() constructor that takes parameters.
+     * set() is not multi-thread safe.
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful intialization
+     *  - INVALID_OPERATION: AudioRecord is already initialized or record device is already in use
+     *  - BAD_VALUE: invalid parameter (channelMask, format, sampleRate...)
+     *  - NO_INIT: audio server or audio hardware not initialized
+     *  - PERMISSION_DENIED: recording is not allowed for the requesting process
+     * If status is not equal to NO_ERROR, don't call any other APIs on this AudioRecord.
+     *
+     * Parameters not listed in the AudioRecord constructors above:
+     *
+     * threadCanCallJava:  Whether callbacks are made from an attached thread and thus can call JNI.
+     */
+            status_t    set(audio_source_t inputSource,
+                            uint32_t sampleRate,
+                            audio_format_t format,
+                            audio_channel_mask_t channelMask,
+                            size_t frameCount = 0,
+                            callback_t cbf = NULL,
+                            void* user = NULL,
+                            uint32_t notificationFrames = 0,
+                            bool threadCanCallJava = false,
+                            audio_session_t sessionId = AUDIO_SESSION_ALLOCATE,
+                            transfer_type transferType = TRANSFER_DEFAULT,
+                            audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
+                            uid_t uid = AUDIO_UID_INVALID,
+                            pid_t pid = -1,
+                            const audio_attributes_t* pAttributes = NULL);
+
+    /* Result of constructing the AudioRecord. This must be checked for successful initialization
+     * before using any AudioRecord API (except for set()), because using
+     * an uninitialized AudioRecord produces undefined results.
+     * See set() method above for possible return codes.
+     */
+            status_t    initCheck() const   { return mStatus; }
+
+    /* Returns this track's estimated latency in milliseconds.
+     * This includes the latency due to AudioRecord buffer size, resampling if applicable,
+     * and audio hardware driver.
+     */
+            uint32_t    latency() const     { return mLatency; }
+
+   /* getters, see constructor and set() */
+
+            audio_format_t format() const   { return mFormat; }
+            uint32_t    channelCount() const    { return mChannelCount; }
+            size_t      frameCount() const  { return mFrameCount; }
+            size_t      frameSize() const   { return mFrameSize; }
+            audio_source_t inputSource() const  { return mAttributes.source; }
+
+    /*
+     * Return the period of the notification callback in frames.
+     * This value is set when the AudioRecord is constructed.
+     * It can be modified if the AudioRecord is rerouted.
+     */
+            uint32_t    getNotificationPeriodInFrames() const { return mNotificationFramesAct; }
+
+    /* After it's created the track is not active. Call start() to
+     * make it active. If set, the callback will start being called.
+     * If event is not AudioSystem::SYNC_EVENT_NONE, the capture start will be delayed until
+     * the specified event occurs on the specified trigger session.
+     */
+            status_t    start(AudioSystem::sync_event_t event = AudioSystem::SYNC_EVENT_NONE,
+                              audio_session_t triggerSession = AUDIO_SESSION_NONE);
+
+    /* Stop a track.  The callback will cease being called.  Note that obtainBuffer() still
+     * works and will drain buffers until the pool is exhausted, and then will return WOULD_BLOCK.
+     */
+            void        stop();
+            bool        stopped() const;
+
+    /* Return the sink sample rate for this record track in Hz.
+     * If specified as zero in constructor or set(), this will be the source sample rate.
+     * Unlike AudioTrack, the sample rate is const after initialization, so doesn't need a lock.
+     */
+            uint32_t    getSampleRate() const   { return mSampleRate; }
+
+    /* Sets marker position. When record reaches the number of frames specified,
+     * a callback with event type EVENT_MARKER is called. Calling setMarkerPosition
+     * with marker == 0 cancels marker notification callback.
+     * To set a marker at a position which would compute as 0,
+     * a workaround is to set the marker at a nearby position such as ~0 or 1.
+     * If the AudioRecord has been opened with no callback function associated,
+     * the operation will fail.
+     *
+     * Parameters:
+     *
+     * marker:   marker position expressed in wrapping (overflow) frame units,
+     *           like the return value of getPosition().
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioRecord has no callback installed.
+     */
+            status_t    setMarkerPosition(uint32_t marker);
+            status_t    getMarkerPosition(uint32_t *marker) const;
+
+    /* Sets position update period. Every time the number of frames specified has been recorded,
+     * a callback with event type EVENT_NEW_POS is called.
+     * Calling setPositionUpdatePeriod with updatePeriod == 0 cancels new position notification
+     * callback.
+     * If the AudioRecord has been opened with no callback function associated,
+     * the operation will fail.
+     * Extremely small values may be rounded up to a value the implementation can support.
+     *
+     * Parameters:
+     *
+     * updatePeriod:  position update notification period expressed in frames.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioRecord has no callback installed.
+     */
+            status_t    setPositionUpdatePeriod(uint32_t updatePeriod);
+            status_t    getPositionUpdatePeriod(uint32_t *updatePeriod) const;
+
+    /* Return the total number of frames recorded since recording started.
+     * The counter will wrap (overflow) periodically, e.g. every ~27 hours at 44.1 kHz.
+     * It is reset to zero by stop().
+     *
+     * Parameters:
+     *
+     *  position:  Address where to return record head position.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - BAD_VALUE:  position is NULL
+     */
+            status_t    getPosition(uint32_t *position) const;
+
+    /* Return the record timestamp.
+     *
+     * Parameters:
+     *  timestamp: A pointer to the timestamp to be filled.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - BAD_VALUE: timestamp is NULL
+     */
+            status_t getTimestamp(ExtendedTimestamp *timestamp);
+
+    /* Returns a handle on the audio input used by this AudioRecord.
+     *
+     * Parameters:
+     *  none.
+     *
+     * Returned value:
+     *  handle on audio hardware input
+     */
+// FIXME The only known public caller is frameworks/opt/net/voip/src/jni/rtp/AudioGroup.cpp
+            audio_io_handle_t    getInput() const __attribute__((__deprecated__))
+                                                { return getInputPrivate(); }
+private:
+            audio_io_handle_t    getInputPrivate() const;
+public:
+
+    /* Returns the audio session ID associated with this AudioRecord.
+     *
+     * Parameters:
+     *  none.
+     *
+     * Returned value:
+     *  AudioRecord session ID.
+     *
+     * No lock needed because session ID doesn't change after first set().
+     */
+            audio_session_t getSessionId() const { return mSessionId; }
+
+    /* Public API for TRANSFER_OBTAIN mode.
+     * Obtains a buffer of up to "audioBuffer->frameCount" full frames.
+     * After draining these frames of data, the caller should release them with releaseBuffer().
+     * If the track buffer is not empty, obtainBuffer() returns as many contiguous
+     * full frames as are available immediately.
+     *
+     * If nonContig is non-NULL, it is an output parameter that will be set to the number of
+     * additional non-contiguous frames that are predicted to be available immediately,
+     * if the client were to release the first frames and then call obtainBuffer() again.
+     * This value is only a prediction, and needs to be confirmed.
+     * It will be set to zero for an error return.
+     *
+     * If the track buffer is empty and track is stopped, obtainBuffer() returns WOULD_BLOCK
+     * regardless of the value of waitCount.
+     * If the track buffer is empty and track is not stopped, obtainBuffer() blocks with a
+     * maximum timeout based on waitCount; see chart below.
+     * Buffers will be returned until the pool
+     * is exhausted, at which point obtainBuffer() will either block
+     * or return WOULD_BLOCK depending on the value of the "waitCount"
+     * parameter.
+     *
+     * Interpretation of waitCount:
+     *  +n  limits wait time to n * WAIT_PERIOD_MS,
+     *  -1  causes an (almost) infinite wait time,
+     *   0  non-blocking.
+     *
+     * Buffer fields
+     * On entry:
+     *  frameCount  number of frames requested
+     *  size        ignored
+     *  raw         ignored
+     * After error return:
+     *  frameCount  0
+     *  size        0
+     *  raw         undefined
+     * After successful return:
+     *  frameCount  actual number of frames available, <= number requested
+     *  size        actual number of bytes available
+     *  raw         pointer to the buffer
+     */
+
+            status_t    obtainBuffer(Buffer* audioBuffer, int32_t waitCount,
+                                size_t *nonContig = NULL);
+
+            // Explicit Routing
+    /**
+     * TODO Document this method.
+     */
+            status_t setInputDevice(audio_port_handle_t deviceId);
+
+    /**
+     * TODO Document this method.
+     */
+            audio_port_handle_t getInputDevice();
+
+     /* Returns the ID of the audio device actually used by the input to which this AudioRecord
+      * is attached.
+      * A value of AUDIO_PORT_HANDLE_NONE indicates the AudioRecord is not attached to any input.
+      *
+      * Parameters:
+      *  none.
+      */
+     audio_port_handle_t getRoutedDeviceId();
+
+    /* Add an AudioDeviceCallback. The caller will be notified when the audio device
+     * to which this AudioRecord is routed is updated.
+     * Replaces any previously installed callback.
+     * Parameters:
+     *  callback:  The callback interface
+     * Returns NO_ERROR if successful.
+     *         INVALID_OPERATION if the same callback is already installed.
+     *         NO_INIT or PREMISSION_DENIED if AudioFlinger service is not reachable
+     *         BAD_VALUE if the callback is NULL
+     */
+            status_t addAudioDeviceCallback(
+                    const sp<AudioSystem::AudioDeviceCallback>& callback);
+
+    /* remove an AudioDeviceCallback.
+     * Parameters:
+     *  callback:  The callback interface
+     * Returns NO_ERROR if successful.
+     *         INVALID_OPERATION if the callback is not installed
+     *         BAD_VALUE if the callback is NULL
+     */
+            status_t removeAudioDeviceCallback(
+                    const sp<AudioSystem::AudioDeviceCallback>& callback);
+
+private:
+    /* If nonContig is non-NULL, it is an output parameter that will be set to the number of
+     * additional non-contiguous frames that are predicted to be available immediately,
+     * if the client were to release the first frames and then call obtainBuffer() again.
+     * This value is only a prediction, and needs to be confirmed.
+     * It will be set to zero for an error return.
+     * FIXME We could pass an array of Buffers instead of only one Buffer to obtainBuffer(),
+     * in case the requested amount of frames is in two or more non-contiguous regions.
+     * FIXME requested and elapsed are both relative times.  Consider changing to absolute time.
+     */
+            status_t    obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
+                                     struct timespec *elapsed = NULL, size_t *nonContig = NULL);
+public:
+
+    /* Public API for TRANSFER_OBTAIN mode.
+     * Release an emptied buffer of "audioBuffer->frameCount" frames for AudioFlinger to re-fill.
+     *
+     * Buffer fields:
+     *  frameCount  currently ignored but recommend to set to actual number of frames consumed
+     *  size        actual number of bytes consumed, must be multiple of frameSize
+     *  raw         ignored
+     */
+            void        releaseBuffer(const Buffer* audioBuffer);
+
+    /* As a convenience we provide a read() interface to the audio buffer.
+     * Input parameter 'size' is in byte units.
+     * This is implemented on top of obtainBuffer/releaseBuffer. For best
+     * performance use callbacks. Returns actual number of bytes read >= 0,
+     * or one of the following negative status codes:
+     *      INVALID_OPERATION   AudioRecord is configured for streaming mode
+     *      BAD_VALUE           size is invalid
+     *      WOULD_BLOCK         when obtainBuffer() returns same, or
+     *                          AudioRecord was stopped during the read
+     *      or any other error code returned by IAudioRecord::start() or restoreRecord_l().
+     * Default behavior is to only return when all data has been transferred. Set 'blocking' to
+     * false for the method to return immediately without waiting to try multiple times to read
+     * the full content of the buffer.
+     */
+            ssize_t     read(void* buffer, size_t size, bool blocking = true);
+
+    /* Return the number of input frames lost in the audio driver since the last call of this
+     * function.  Audio driver is expected to reset the value to 0 and restart counting upon
+     * returning the current value by this function call.  Such loss typically occurs when the
+     * user space process is blocked longer than the capacity of audio driver buffers.
+     * Units: the number of input audio frames.
+     * FIXME The side-effect of resetting the counter may be incompatible with multi-client.
+     * Consider making it more like AudioTrack::getUnderrunFrames which doesn't have side effects.
+     */
+            uint32_t    getInputFramesLost() const;
+
+    /* Get the flags */
+            audio_input_flags_t getFlags() const { AutoMutex _l(mLock); return mFlags; }
+
+private:
+    /* copying audio record objects is not allowed */
+                        AudioRecord(const AudioRecord& other);
+            AudioRecord& operator = (const AudioRecord& other);
+
+    /* a small internal class to handle the callback */
+    class AudioRecordThread : public Thread
+    {
+    public:
+        AudioRecordThread(AudioRecord& receiver, bool bCanCallJava = false);
+
+        // Do not call Thread::requestExitAndWait() without first calling requestExit().
+        // Thread::requestExitAndWait() is not virtual, and the implementation doesn't do enough.
+        virtual void        requestExit();
+
+                void        pause();    // suspend thread from execution at next loop boundary
+                void        resume();   // allow thread to execute, if not requested to exit
+                void        wake();     // wake to handle changed notification conditions.
+
+    private:
+                void        pauseInternal(nsecs_t ns = 0LL);
+                                        // like pause(), but only used internally within thread
+
+        friend class AudioRecord;
+        virtual bool        threadLoop();
+        AudioRecord&        mReceiver;
+        virtual ~AudioRecordThread();
+        Mutex               mMyLock;    // Thread::mLock is private
+        Condition           mMyCond;    // Thread::mThreadExitedCondition is private
+        bool                mPaused;    // whether thread is requested to pause at next loop entry
+        bool                mPausedInt; // whether thread internally requests pause
+        nsecs_t             mPausedNs;  // if mPausedInt then associated timeout, otherwise ignored
+        bool                mIgnoreNextPausedInt;   // skip any internal pause and go immediately
+                                        // to processAudioBuffer() as state may have changed
+                                        // since pause time calculated.
+    };
+
+            // body of AudioRecordThread::threadLoop()
+            // returns the maximum amount of time before we would like to run again, where:
+            //      0           immediately
+            //      > 0         no later than this many nanoseconds from now
+            //      NS_WHENEVER still active but no particular deadline
+            //      NS_INACTIVE inactive so don't run again until re-started
+            //      NS_NEVER    never again
+            static const nsecs_t NS_WHENEVER = -1, NS_INACTIVE = -2, NS_NEVER = -3;
+            nsecs_t processAudioBuffer();
+
+            // caller must hold lock on mLock for all _l methods
+
+            status_t openRecord_l(const Modulo<uint32_t> &epoch, const String16& opPackageName);
+
+            // FIXME enum is faster than strcmp() for parameter 'from'
+            status_t restoreRecord_l(const char *from);
+
+    sp<AudioRecordThread>   mAudioRecordThread;
+    mutable Mutex           mLock;
+
+    // Current client state:  false = stopped, true = active.  Protected by mLock.  If more states
+    // are added, consider changing this to enum State { ... } mState as in AudioTrack.
+    bool                    mActive;
+
+    // for client callback handler
+    callback_t              mCbf;                   // callback handler for events, or NULL
+    void*                   mUserData;
+
+    // for notification APIs
+    uint32_t                mNotificationFramesReq; // requested number of frames between each
+                                                    // notification callback
+                                                    // as specified in constructor or set()
+    uint32_t                mNotificationFramesAct; // actual number of frames between each
+                                                    // notification callback
+    bool                    mRefreshRemaining;      // processAudioBuffer() should refresh
+                                                    // mRemainingFrames and mRetryOnPartialBuffer
+
+    // These are private to processAudioBuffer(), and are not protected by a lock
+    uint32_t                mRemainingFrames;       // number of frames to request in obtainBuffer()
+    bool                    mRetryOnPartialBuffer;  // sleep and retry after partial obtainBuffer()
+    uint32_t                mObservedSequence;      // last observed value of mSequence
+
+    Modulo<uint32_t>        mMarkerPosition;        // in wrapping (overflow) frame units
+    bool                    mMarkerReached;
+    Modulo<uint32_t>        mNewPosition;           // in frames
+    uint32_t                mUpdatePeriod;          // in frames, zero means no EVENT_NEW_POS
+
+    status_t                mStatus;
+
+    String16                mOpPackageName;         // The package name used for app ops.
+
+    size_t                  mFrameCount;            // corresponds to current IAudioRecord, value is
+                                                    // reported back by AudioFlinger to the client
+    size_t                  mReqFrameCount;         // frame count to request the first or next time
+                                                    // a new IAudioRecord is needed, non-decreasing
+
+    int64_t                 mFramesRead;            // total frames read. reset to zero after
+                                                    // the start() following stop(). It is not
+                                                    // changed after restoring the track.
+    int64_t                 mFramesReadServerOffset; // An offset to server frames read due to
+                                                    // restoring AudioRecord, or stop/start.
+    // constant after constructor or set()
+    uint32_t                mSampleRate;
+    audio_format_t          mFormat;
+    uint32_t                mChannelCount;
+    size_t                  mFrameSize;         // app-level frame size == AudioFlinger frame size
+    uint32_t                mLatency;           // in ms
+    audio_channel_mask_t    mChannelMask;
+
+    audio_input_flags_t     mFlags;                 // same as mOrigFlags, except for bits that may
+                                                    // be denied by client or server, such as
+                                                    // AUDIO_INPUT_FLAG_FAST.  mLock must be
+                                                    // held to read or write those bits reliably.
+    audio_input_flags_t     mOrigFlags;             // as specified in constructor or set(), const
+
+    audio_session_t         mSessionId;
+    transfer_type           mTransfer;
+
+    // Next 5 fields may be changed if IAudioRecord is re-created, but always != 0
+    // provided the initial set() was successful
+    sp<IAudioRecord>        mAudioRecord;
+    sp<IMemory>             mCblkMemory;
+    audio_track_cblk_t*     mCblk;              // re-load after mLock.unlock()
+    sp<IMemory>             mBufferMemory;
+    audio_io_handle_t       mInput;             // returned by AudioSystem::getInput()
+
+    int                     mPreviousPriority;  // before start()
+    SchedPolicy             mPreviousSchedulingGroup;
+    bool                    mAwaitBoost;    // thread should wait for priority boost before running
+
+    // The proxy should only be referenced while a lock is held because the proxy isn't
+    // multi-thread safe.
+    // An exception is that a blocking ClientProxy::obtainBuffer() may be called without a lock,
+    // provided that the caller also holds an extra reference to the proxy and shared memory to keep
+    // them around in case they are replaced during the obtainBuffer().
+    sp<AudioRecordClientProxy> mProxy;
+
+    bool                    mInOverrun;         // whether recorder is currently in overrun state
+
+private:
+    class DeathNotifier : public IBinder::DeathRecipient {
+    public:
+        DeathNotifier(AudioRecord* audioRecord) : mAudioRecord(audioRecord) { }
+    protected:
+        virtual void        binderDied(const wp<IBinder>& who);
+    private:
+        const wp<AudioRecord> mAudioRecord;
+    };
+
+    sp<DeathNotifier>       mDeathNotifier;
+    uint32_t                mSequence;              // incremented for each new IAudioRecord attempt
+    uid_t                   mClientUid;
+    pid_t                   mClientPid;
+    audio_attributes_t      mAttributes;
+
+    // For Device Selection API
+    //  a value of AUDIO_PORT_HANDLE_NONE indicated default (AudioPolicyManager) routing.
+    audio_port_handle_t    mSelectedDeviceId;
+    sp<AudioSystem::AudioDeviceCallback> mDeviceCallback;
+    audio_port_handle_t    mPortId;  // unique ID allocated by audio policy
+
+};
+
+}; // namespace android
+
+#endif // ANDROID_AUDIORECORD_H
diff --git a/media/libaudioclient/include/media/AudioSystem.h b/media/libaudioclient/include/media/AudioSystem.h
new file mode 100644
index 0000000..853d318
--- /dev/null
+++ b/media/libaudioclient/include/media/AudioSystem.h
@@ -0,0 +1,475 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIOSYSTEM_H_
+#define ANDROID_AUDIOSYSTEM_H_
+
+#include <sys/types.h>
+
+#include <media/AudioPolicy.h>
+#include <media/AudioIoDescriptor.h>
+#include <media/IAudioFlingerClient.h>
+#include <media/IAudioPolicyServiceClient.h>
+#include <system/audio.h>
+#include <system/audio_effect.h>
+#include <system/audio_policy.h>
+#include <utils/Errors.h>
+#include <utils/Mutex.h>
+
+namespace android {
+
+typedef void (*audio_error_callback)(status_t err);
+typedef void (*dynamic_policy_callback)(int event, String8 regId, int val);
+typedef void (*record_config_callback)(int event, audio_session_t session, int source,
+                const audio_config_base_t *clientConfig, const audio_config_base_t *deviceConfig,
+                audio_patch_handle_t patchHandle);
+
+class IAudioFlinger;
+class IAudioPolicyService;
+class String8;
+
+class AudioSystem
+{
+public:
+
+    // FIXME Declare in binder opcode order, similarly to IAudioFlinger.h and IAudioFlinger.cpp
+
+    /* These are static methods to control the system-wide AudioFlinger
+     * only privileged processes can have access to them
+     */
+
+    // mute/unmute microphone
+    static status_t muteMicrophone(bool state);
+    static status_t isMicrophoneMuted(bool *state);
+
+    // set/get master volume
+    static status_t setMasterVolume(float value);
+    static status_t getMasterVolume(float* volume);
+
+    // mute/unmute audio outputs
+    static status_t setMasterMute(bool mute);
+    static status_t getMasterMute(bool* mute);
+
+    // set/get stream volume on specified output
+    static status_t setStreamVolume(audio_stream_type_t stream, float value,
+                                    audio_io_handle_t output);
+    static status_t getStreamVolume(audio_stream_type_t stream, float* volume,
+                                    audio_io_handle_t output);
+
+    // mute/unmute stream
+    static status_t setStreamMute(audio_stream_type_t stream, bool mute);
+    static status_t getStreamMute(audio_stream_type_t stream, bool* mute);
+
+    // set audio mode in audio hardware
+    static status_t setMode(audio_mode_t mode);
+
+    // returns true in *state if tracks are active on the specified stream or have been active
+    // in the past inPastMs milliseconds
+    static status_t isStreamActive(audio_stream_type_t stream, bool *state, uint32_t inPastMs);
+    // returns true in *state if tracks are active for what qualifies as remote playback
+    // on the specified stream or have been active in the past inPastMs milliseconds. Remote
+    // playback isn't mutually exclusive with local playback.
+    static status_t isStreamActiveRemotely(audio_stream_type_t stream, bool *state,
+            uint32_t inPastMs);
+    // returns true in *state if a recorder is currently recording with the specified source
+    static status_t isSourceActive(audio_source_t source, bool *state);
+
+    // set/get audio hardware parameters. The function accepts a list of parameters
+    // key value pairs in the form: key1=value1;key2=value2;...
+    // Some keys are reserved for standard parameters (See AudioParameter class).
+    // The versions with audio_io_handle_t are intended for internal media framework use only.
+    static status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs);
+    static String8  getParameters(audio_io_handle_t ioHandle, const String8& keys);
+    // The versions without audio_io_handle_t are intended for JNI.
+    static status_t setParameters(const String8& keyValuePairs);
+    static String8  getParameters(const String8& keys);
+
+    static void setErrorCallback(audio_error_callback cb);
+    static void setDynPolicyCallback(dynamic_policy_callback cb);
+    static void setRecordConfigCallback(record_config_callback);
+
+    // helper function to obtain AudioFlinger service handle
+    static const sp<IAudioFlinger> get_audio_flinger();
+
+    static float linearToLog(int volume);
+    static int logToLinear(float volume);
+
+    // Returned samplingRate and frameCount output values are guaranteed
+    // to be non-zero if status == NO_ERROR
+    // FIXME This API assumes a route, and so should be deprecated.
+    static status_t getOutputSamplingRate(uint32_t* samplingRate,
+            audio_stream_type_t stream);
+    // FIXME This API assumes a route, and so should be deprecated.
+    static status_t getOutputFrameCount(size_t* frameCount,
+            audio_stream_type_t stream);
+    // FIXME This API assumes a route, and so should be deprecated.
+    static status_t getOutputLatency(uint32_t* latency,
+            audio_stream_type_t stream);
+    // returns the audio HAL sample rate
+    static status_t getSamplingRate(audio_io_handle_t ioHandle,
+                                          uint32_t* samplingRate);
+    // For output threads with a fast mixer, returns the number of frames per normal mixer buffer.
+    // For output threads without a fast mixer, or for input, this is same as getFrameCountHAL().
+    static status_t getFrameCount(audio_io_handle_t ioHandle,
+                                  size_t* frameCount);
+    // returns the audio output latency in ms. Corresponds to
+    // audio_stream_out->get_latency()
+    static status_t getLatency(audio_io_handle_t output,
+                               uint32_t* latency);
+
+    // return status NO_ERROR implies *buffSize > 0
+    // FIXME This API assumes a route, and so should deprecated.
+    static status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
+        audio_channel_mask_t channelMask, size_t* buffSize);
+
+    static status_t setVoiceVolume(float volume);
+
+    // return the number of audio frames written by AudioFlinger to audio HAL and
+    // audio dsp to DAC since the specified output has exited standby.
+    // returned status (from utils/Errors.h) can be:
+    // - NO_ERROR: successful operation, halFrames and dspFrames point to valid data
+    // - INVALID_OPERATION: Not supported on current hardware platform
+    // - BAD_VALUE: invalid parameter
+    // NOTE: this feature is not supported on all hardware platforms and it is
+    // necessary to check returned status before using the returned values.
+    static status_t getRenderPosition(audio_io_handle_t output,
+                                      uint32_t *halFrames,
+                                      uint32_t *dspFrames);
+
+    // return the number of input frames lost by HAL implementation, or 0 if the handle is invalid
+    static uint32_t getInputFramesLost(audio_io_handle_t ioHandle);
+
+    // Allocate a new unique ID for use as an audio session ID or I/O handle.
+    // If unable to contact AudioFlinger, returns AUDIO_UNIQUE_ID_ALLOCATE instead.
+    // FIXME If AudioFlinger were to ever exhaust the unique ID namespace,
+    //       this method could fail by returning either a reserved ID like AUDIO_UNIQUE_ID_ALLOCATE
+    //       or an unspecified existing unique ID.
+    static audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use);
+
+    static void acquireAudioSessionId(audio_session_t audioSession, pid_t pid);
+    static void releaseAudioSessionId(audio_session_t audioSession, pid_t pid);
+
+    // Get the HW synchronization source used for an audio session.
+    // Return a valid source or AUDIO_HW_SYNC_INVALID if an error occurs
+    // or no HW sync source is used.
+    static audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId);
+
+    // Indicate JAVA services are ready (scheduling, power management ...)
+    static status_t systemReady();
+
+    // Returns the number of frames per audio HAL buffer.
+    // Corresponds to audio_stream->get_buffer_size()/audio_stream_in_frame_size() for input.
+    // See also getFrameCount().
+    static status_t getFrameCountHAL(audio_io_handle_t ioHandle,
+                                     size_t* frameCount);
+
+    // Events used to synchronize actions between audio sessions.
+    // For instance SYNC_EVENT_PRESENTATION_COMPLETE can be used to delay recording start until
+    // playback is complete on another audio session.
+    // See definitions in MediaSyncEvent.java
+    enum sync_event_t {
+        SYNC_EVENT_SAME = -1,             // used internally to indicate restart with same event
+        SYNC_EVENT_NONE = 0,
+        SYNC_EVENT_PRESENTATION_COMPLETE,
+
+        //
+        // Define new events here: SYNC_EVENT_START, SYNC_EVENT_STOP, SYNC_EVENT_TIME ...
+        //
+        SYNC_EVENT_CNT,
+    };
+
+    // Timeout for synchronous record start. Prevents from blocking the record thread forever
+    // if the trigger event is not fired.
+    static const uint32_t kSyncRecordStartTimeOutMs = 30000;
+
+    //
+    // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
+    //
+    static status_t setDeviceConnectionState(audio_devices_t device, audio_policy_dev_state_t state,
+                                             const char *device_address, const char *device_name);
+    static audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
+                                                                const char *device_address);
+    static status_t handleDeviceConfigChange(audio_devices_t device,
+                                             const char *device_address,
+                                             const char *device_name);
+    static status_t setPhoneState(audio_mode_t state);
+    static status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config);
+    static audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage);
+
+    // Client must successfully hand off the handle reference to AudioFlinger via createTrack(),
+    // or release it with releaseOutput().
+    static audio_io_handle_t getOutput(audio_stream_type_t stream,
+                                        uint32_t samplingRate = 0,
+                                        audio_format_t format = AUDIO_FORMAT_DEFAULT,
+                                        audio_channel_mask_t channelMask = AUDIO_CHANNEL_OUT_STEREO,
+                                        audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                                        const audio_offload_info_t *offloadInfo = NULL);
+    static status_t getOutputForAttr(const audio_attributes_t *attr,
+                                     audio_io_handle_t *output,
+                                     audio_session_t session,
+                                     audio_stream_type_t *stream,
+                                     uid_t uid,
+                                     const audio_config_t *config,
+                                     audio_output_flags_t flags,
+                                     audio_port_handle_t selectedDeviceId,
+                                     audio_port_handle_t *portId);
+    static status_t startOutput(audio_io_handle_t output,
+                                audio_stream_type_t stream,
+                                audio_session_t session);
+    static status_t stopOutput(audio_io_handle_t output,
+                               audio_stream_type_t stream,
+                               audio_session_t session);
+    static void releaseOutput(audio_io_handle_t output,
+                              audio_stream_type_t stream,
+                              audio_session_t session);
+
+    // Client must successfully hand off the handle reference to AudioFlinger via openRecord(),
+    // or release it with releaseInput().
+    static status_t getInputForAttr(const audio_attributes_t *attr,
+                                    audio_io_handle_t *input,
+                                    audio_session_t session,
+                                    pid_t pid,
+                                    uid_t uid,
+                                    const audio_config_base_t *config,
+                                    audio_input_flags_t flags,
+                                    audio_port_handle_t selectedDeviceId,
+                                    audio_port_handle_t *portId);
+
+    static status_t startInput(audio_io_handle_t input,
+                               audio_session_t session);
+    static status_t stopInput(audio_io_handle_t input,
+                              audio_session_t session);
+    static void releaseInput(audio_io_handle_t input,
+                             audio_session_t session);
+    static status_t initStreamVolume(audio_stream_type_t stream,
+                                      int indexMin,
+                                      int indexMax);
+    static status_t setStreamVolumeIndex(audio_stream_type_t stream,
+                                         int index,
+                                         audio_devices_t device);
+    static status_t getStreamVolumeIndex(audio_stream_type_t stream,
+                                         int *index,
+                                         audio_devices_t device);
+
+    static uint32_t getStrategyForStream(audio_stream_type_t stream);
+    static audio_devices_t getDevicesForStream(audio_stream_type_t stream);
+
+    static audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc);
+    static status_t registerEffect(const effect_descriptor_t *desc,
+                                    audio_io_handle_t io,
+                                    uint32_t strategy,
+                                    audio_session_t session,
+                                    int id);
+    static status_t unregisterEffect(int id);
+    static status_t setEffectEnabled(int id, bool enabled);
+
+    // clear stream to output mapping cache (gStreamOutputMap)
+    // and output configuration cache (gOutputs)
+    static void clearAudioConfigCache();
+
+    static const sp<IAudioPolicyService> get_audio_policy_service();
+
+    // helpers for android.media.AudioManager.getProperty(), see description there for meaning
+    static uint32_t getPrimaryOutputSamplingRate();
+    static size_t getPrimaryOutputFrameCount();
+
+    static status_t setLowRamDevice(bool isLowRamDevice);
+
+    // Check if hw offload is possible for given format, stream type, sample rate,
+    // bit rate, duration, video and streaming or offload property is enabled
+    static bool isOffloadSupported(const audio_offload_info_t& info);
+
+    // check presence of audio flinger service.
+    // returns NO_ERROR if binding to service succeeds, DEAD_OBJECT otherwise
+    static status_t checkAudioFlinger();
+
+    /* List available audio ports and their attributes */
+    static status_t listAudioPorts(audio_port_role_t role,
+                                   audio_port_type_t type,
+                                   unsigned int *num_ports,
+                                   struct audio_port *ports,
+                                   unsigned int *generation);
+
+    /* Get attributes for a given audio port */
+    static status_t getAudioPort(struct audio_port *port);
+
+    /* Create an audio patch between several source and sink ports */
+    static status_t createAudioPatch(const struct audio_patch *patch,
+                                       audio_patch_handle_t *handle);
+
+    /* Release an audio patch */
+    static status_t releaseAudioPatch(audio_patch_handle_t handle);
+
+    /* List existing audio patches */
+    static status_t listAudioPatches(unsigned int *num_patches,
+                                      struct audio_patch *patches,
+                                      unsigned int *generation);
+    /* Set audio port configuration */
+    static status_t setAudioPortConfig(const struct audio_port_config *config);
+
+
+    static status_t acquireSoundTriggerSession(audio_session_t *session,
+                                           audio_io_handle_t *ioHandle,
+                                           audio_devices_t *device);
+    static status_t releaseSoundTriggerSession(audio_session_t session);
+
+    static audio_mode_t getPhoneState();
+
+    static status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration);
+
+    static status_t startAudioSource(const struct audio_port_config *source,
+                                      const audio_attributes_t *attributes,
+                                      audio_patch_handle_t *handle);
+    static status_t stopAudioSource(audio_patch_handle_t handle);
+
+    static status_t setMasterMono(bool mono);
+    static status_t getMasterMono(bool *mono);
+
+    // ----------------------------------------------------------------------------
+
+    class AudioPortCallback : public RefBase
+    {
+    public:
+
+                AudioPortCallback() {}
+        virtual ~AudioPortCallback() {}
+
+        virtual void onAudioPortListUpdate() = 0;
+        virtual void onAudioPatchListUpdate() = 0;
+        virtual void onServiceDied() = 0;
+
+    };
+
+    static status_t addAudioPortCallback(const sp<AudioPortCallback>& callback);
+    static status_t removeAudioPortCallback(const sp<AudioPortCallback>& callback);
+
+    class AudioDeviceCallback : public RefBase
+    {
+    public:
+
+                AudioDeviceCallback() {}
+        virtual ~AudioDeviceCallback() {}
+
+        virtual void onAudioDeviceUpdate(audio_io_handle_t audioIo,
+                                         audio_port_handle_t deviceId) = 0;
+    };
+
+    static status_t addAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
+                                           audio_io_handle_t audioIo);
+    static status_t removeAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
+                                              audio_io_handle_t audioIo);
+
+    static audio_port_handle_t getDeviceIdForIo(audio_io_handle_t audioIo);
+
+private:
+
+    class AudioFlingerClient: public IBinder::DeathRecipient, public BnAudioFlingerClient
+    {
+    public:
+        AudioFlingerClient() :
+            mInBuffSize(0), mInSamplingRate(0),
+            mInFormat(AUDIO_FORMAT_DEFAULT), mInChannelMask(AUDIO_CHANNEL_NONE) {
+        }
+
+        void clearIoCache();
+        status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
+                                    audio_channel_mask_t channelMask, size_t* buffSize);
+        sp<AudioIoDescriptor> getIoDescriptor(audio_io_handle_t ioHandle);
+
+        // DeathRecipient
+        virtual void binderDied(const wp<IBinder>& who);
+
+        // IAudioFlingerClient
+
+        // indicate a change in the configuration of an output or input: keeps the cached
+        // values for output/input parameters up-to-date in client process
+        virtual void ioConfigChanged(audio_io_config_event event,
+                                     const sp<AudioIoDescriptor>& ioDesc);
+
+
+        status_t addAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
+                                               audio_io_handle_t audioIo);
+        status_t removeAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
+                                           audio_io_handle_t audioIo);
+
+        audio_port_handle_t getDeviceIdForIo(audio_io_handle_t audioIo);
+
+    private:
+        Mutex                               mLock;
+        DefaultKeyedVector<audio_io_handle_t, sp<AudioIoDescriptor> >   mIoDescriptors;
+        DefaultKeyedVector<audio_io_handle_t, Vector < sp<AudioDeviceCallback> > >
+                                                                        mAudioDeviceCallbacks;
+        // cached values for recording getInputBufferSize() queries
+        size_t                              mInBuffSize;    // zero indicates cache is invalid
+        uint32_t                            mInSamplingRate;
+        audio_format_t                      mInFormat;
+        audio_channel_mask_t                mInChannelMask;
+        sp<AudioIoDescriptor> getIoDescriptor_l(audio_io_handle_t ioHandle);
+    };
+
+    class AudioPolicyServiceClient: public IBinder::DeathRecipient,
+                                    public BnAudioPolicyServiceClient
+    {
+    public:
+        AudioPolicyServiceClient() {
+        }
+
+        int addAudioPortCallback(const sp<AudioPortCallback>& callback);
+        int removeAudioPortCallback(const sp<AudioPortCallback>& callback);
+
+        // DeathRecipient
+        virtual void binderDied(const wp<IBinder>& who);
+
+        // IAudioPolicyServiceClient
+        virtual void onAudioPortListUpdate();
+        virtual void onAudioPatchListUpdate();
+        virtual void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
+        virtual void onRecordingConfigurationUpdate(int event, audio_session_t session,
+                        audio_source_t source, const audio_config_base_t *clientConfig,
+                        const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle);
+
+    private:
+        Mutex                               mLock;
+        Vector <sp <AudioPortCallback> >    mAudioPortCallbacks;
+    };
+
+    static const sp<AudioFlingerClient> getAudioFlingerClient();
+    static sp<AudioIoDescriptor> getIoDescriptor(audio_io_handle_t ioHandle);
+
+    static sp<AudioFlingerClient> gAudioFlingerClient;
+    static sp<AudioPolicyServiceClient> gAudioPolicyServiceClient;
+    friend class AudioFlingerClient;
+    friend class AudioPolicyServiceClient;
+
+    static Mutex gLock;      // protects gAudioFlinger and gAudioErrorCallback,
+    static Mutex gLockAPS;   // protects gAudioPolicyService and gAudioPolicyServiceClient
+    static sp<IAudioFlinger> gAudioFlinger;
+    static audio_error_callback gAudioErrorCallback;
+    static dynamic_policy_callback gDynPolicyCallback;
+    static record_config_callback gRecordConfigCallback;
+
+    static size_t gInBuffSize;
+    // previous parameters for recording buffer size queries
+    static uint32_t gPrevInSamplingRate;
+    static audio_format_t gPrevInFormat;
+    static audio_channel_mask_t gPrevInChannelMask;
+
+    static sp<IAudioPolicyService> gAudioPolicyService;
+};
+
+};  // namespace android
+
+#endif  /*ANDROID_AUDIOSYSTEM_H_*/
diff --git a/include/media/AudioTimestamp.h b/media/libaudioclient/include/media/AudioTimestamp.h
similarity index 100%
rename from include/media/AudioTimestamp.h
rename to media/libaudioclient/include/media/AudioTimestamp.h
diff --git a/media/libaudioclient/include/media/AudioTrack.h b/media/libaudioclient/include/media/AudioTrack.h
new file mode 100644
index 0000000..a4c8d53
--- /dev/null
+++ b/media/libaudioclient/include/media/AudioTrack.h
@@ -0,0 +1,1161 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIOTRACK_H
+#define ANDROID_AUDIOTRACK_H
+
+#include <cutils/sched_policy.h>
+#include <media/AudioSystem.h>
+#include <media/AudioTimestamp.h>
+#include <media/IAudioTrack.h>
+#include <media/AudioResamplerPublic.h>
+#include <media/Modulo.h>
+#include <utils/threads.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+struct audio_track_cblk_t;
+class AudioTrackClientProxy;
+class StaticAudioTrackClientProxy;
+
+// ----------------------------------------------------------------------------
+
+class AudioTrack : public RefBase
+{
+public:
+
+    /* Events used by AudioTrack callback function (callback_t).
+     * Keep in sync with frameworks/base/media/java/android/media/AudioTrack.java NATIVE_EVENT_*.
+     */
+    enum event_type {
+        EVENT_MORE_DATA = 0,        // Request to write more data to buffer.
+                                    // This event only occurs for TRANSFER_CALLBACK.
+                                    // If this event is delivered but the callback handler
+                                    // does not want to write more data, the handler must
+                                    // ignore the event by setting frameCount to zero.
+                                    // This might occur, for example, if the application is
+                                    // waiting for source data or is at the end of stream.
+                                    //
+                                    // For data filling, it is preferred that the callback
+                                    // does not block and instead returns a short count on
+                                    // the amount of data actually delivered
+                                    // (or 0, if no data is currently available).
+        EVENT_UNDERRUN = 1,         // Buffer underrun occurred. This will not occur for
+                                    // static tracks.
+        EVENT_LOOP_END = 2,         // Sample loop end was reached; playback restarted from
+                                    // loop start if loop count was not 0 for a static track.
+        EVENT_MARKER = 3,           // Playback head is at the specified marker position
+                                    // (See setMarkerPosition()).
+        EVENT_NEW_POS = 4,          // Playback head is at a new position
+                                    // (See setPositionUpdatePeriod()).
+        EVENT_BUFFER_END = 5,       // Playback has completed for a static track.
+        EVENT_NEW_IAUDIOTRACK = 6,  // IAudioTrack was re-created, either due to re-routing and
+                                    // voluntary invalidation by mediaserver, or mediaserver crash.
+        EVENT_STREAM_END = 7,       // Sent after all the buffers queued in AF and HW are played
+                                    // back (after stop is called) for an offloaded track.
+#if 0   // FIXME not yet implemented
+        EVENT_NEW_TIMESTAMP = 8,    // Delivered periodically and when there's a significant change
+                                    // in the mapping from frame position to presentation time.
+                                    // See AudioTimestamp for the information included with event.
+#endif
+    };
+
+    /* Client should declare a Buffer and pass the address to obtainBuffer()
+     * and releaseBuffer().  See also callback_t for EVENT_MORE_DATA.
+     */
+
+    class Buffer
+    {
+    public:
+        // FIXME use m prefix
+        size_t      frameCount;   // number of sample frames corresponding to size;
+                                  // on input to obtainBuffer() it is the number of frames desired,
+                                  // on output from obtainBuffer() it is the number of available
+                                  //    [empty slots for] frames to be filled
+                                  // on input to releaseBuffer() it is currently ignored
+
+        size_t      size;         // input/output in bytes == frameCount * frameSize
+                                  // on input to obtainBuffer() it is ignored
+                                  // on output from obtainBuffer() it is the number of available
+                                  //    [empty slots for] bytes to be filled,
+                                  //    which is frameCount * frameSize
+                                  // on input to releaseBuffer() it is the number of bytes to
+                                  //    release
+                                  // FIXME This is redundant with respect to frameCount.  Consider
+                                  //    removing size and making frameCount the primary field.
+
+        union {
+            void*       raw;
+            short*      i16;      // signed 16-bit
+            int8_t*     i8;       // unsigned 8-bit, offset by 0x80
+        };                        // input to obtainBuffer(): unused, output: pointer to buffer
+    };
+
+    /* As a convenience, if a callback is supplied, a handler thread
+     * is automatically created with the appropriate priority. This thread
+     * invokes the callback when a new buffer becomes available or various conditions occur.
+     * Parameters:
+     *
+     * event:   type of event notified (see enum AudioTrack::event_type).
+     * user:    Pointer to context for use by the callback receiver.
+     * info:    Pointer to optional parameter according to event type:
+     *          - EVENT_MORE_DATA: pointer to AudioTrack::Buffer struct. The callback must not write
+     *            more bytes than indicated by 'size' field and update 'size' if fewer bytes are
+     *            written.
+     *          - EVENT_UNDERRUN: unused.
+     *          - EVENT_LOOP_END: pointer to an int indicating the number of loops remaining.
+     *          - EVENT_MARKER: pointer to const uint32_t containing the marker position in frames.
+     *          - EVENT_NEW_POS: pointer to const uint32_t containing the new position in frames.
+     *          - EVENT_BUFFER_END: unused.
+     *          - EVENT_NEW_IAUDIOTRACK: unused.
+     *          - EVENT_STREAM_END: unused.
+     *          - EVENT_NEW_TIMESTAMP: pointer to const AudioTimestamp.
+     */
+
+    typedef void (*callback_t)(int event, void* user, void *info);
+
+    /* Returns the minimum frame count required for the successful creation of
+     * an AudioTrack object.
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - NO_INIT: audio server or audio hardware not initialized
+     *  - BAD_VALUE: unsupported configuration
+     * frameCount is guaranteed to be non-zero if status is NO_ERROR,
+     * and is undefined otherwise.
+     * FIXME This API assumes a route, and so should be deprecated.
+     */
+
+    static status_t getMinFrameCount(size_t* frameCount,
+                                     audio_stream_type_t streamType,
+                                     uint32_t sampleRate);
+
+    /* How data is transferred to AudioTrack
+     */
+    enum transfer_type {
+        TRANSFER_DEFAULT,   // not specified explicitly; determine from the other parameters
+        TRANSFER_CALLBACK,  // callback EVENT_MORE_DATA
+        TRANSFER_OBTAIN,    // call obtainBuffer() and releaseBuffer()
+        TRANSFER_SYNC,      // synchronous write()
+        TRANSFER_SHARED,    // shared memory
+    };
+
+    /* Constructs an uninitialized AudioTrack. No connection with
+     * AudioFlinger takes place.  Use set() after this.
+     */
+                        AudioTrack();
+
+    /* Creates an AudioTrack object and registers it with AudioFlinger.
+     * Once created, the track needs to be started before it can be used.
+     * Unspecified values are set to appropriate default values.
+     *
+     * Parameters:
+     *
+     * streamType:         Select the type of audio stream this track is attached to
+     *                     (e.g. AUDIO_STREAM_MUSIC).
+     * sampleRate:         Data source sampling rate in Hz.  Zero means to use the sink sample rate.
+     *                     A non-zero value must be specified if AUDIO_OUTPUT_FLAG_DIRECT is set.
+     *                     0 will not work with current policy implementation for direct output
+     *                     selection where an exact match is needed for sampling rate.
+     * format:             Audio format. For mixed tracks, any PCM format supported by server is OK.
+     *                     For direct and offloaded tracks, the possible format(s) depends on the
+     *                     output sink.
+     * channelMask:        Channel mask, such that audio_is_output_channel(channelMask) is true.
+     * frameCount:         Minimum size of track PCM buffer in frames. This defines the
+     *                     application's contribution to the
+     *                     latency of the track. The actual size selected by the AudioTrack could be
+     *                     larger if the requested size is not compatible with current audio HAL
+     *                     configuration.  Zero means to use a default value.
+     * flags:              See comments on audio_output_flags_t in <system/audio.h>.
+     * cbf:                Callback function. If not null, this function is called periodically
+     *                     to provide new data in TRANSFER_CALLBACK mode
+     *                     and inform of marker, position updates, etc.
+     * user:               Context for use by the callback receiver.
+     * notificationFrames: The callback function is called each time notificationFrames PCM
+     *                     frames have been consumed from track input buffer by server.
+     *                     Zero means to use a default value, which is typically:
+     *                      - fast tracks: HAL buffer size, even if track frameCount is larger
+     *                      - normal tracks: 1/2 of track frameCount
+     *                     A positive value means that many frames at initial source sample rate.
+     *                     A negative value for this parameter specifies the negative of the
+     *                     requested number of notifications (sub-buffers) in the entire buffer.
+     *                     For fast tracks, the FastMixer will process one sub-buffer at a time.
+     *                     The size of each sub-buffer is determined by the HAL.
+     *                     To get "double buffering", for example, one should pass -2.
+     *                     The minimum number of sub-buffers is 1 (expressed as -1),
+     *                     and the maximum number of sub-buffers is 8 (expressed as -8).
+     *                     Negative is only permitted for fast tracks, and if frameCount is zero.
+     *                     TODO It is ugly to overload a parameter in this way depending on
+     *                     whether it is positive, negative, or zero.  Consider splitting apart.
+     * sessionId:          Specific session ID, or zero to use default.
+     * transferType:       How data is transferred to AudioTrack.
+     * offloadInfo:        If not NULL, provides offload parameters for
+     *                     AudioSystem::getOutputForAttr().
+     * uid:                User ID of the app which initially requested this AudioTrack
+     *                     for power management tracking, or -1 for current user ID.
+     * pid:                Process ID of the app which initially requested this AudioTrack
+     *                     for power management tracking, or -1 for current process ID.
+     * pAttributes:        If not NULL, supersedes streamType for use case selection.
+     * doNotReconnect:     If set to true, AudioTrack won't automatically recreate the IAudioTrack
+                           binder to AudioFlinger.
+                           It will return an error instead.  The application will recreate
+                           the track based on offloading or different channel configuration, etc.
+     * maxRequiredSpeed:   For PCM tracks, this creates an appropriate buffer size that will allow
+     *                     maxRequiredSpeed playback. Values less than 1.0f and greater than
+     *                     AUDIO_TIMESTRETCH_SPEED_MAX will be clamped.  For non-PCM tracks
+     *                     and direct or offloaded tracks, this parameter is ignored.
+     * threadCanCallJava:  Not present in parameter list, and so is fixed at false.
+     */
+
+                        AudioTrack( audio_stream_type_t streamType,
+                                    uint32_t sampleRate,
+                                    audio_format_t format,
+                                    audio_channel_mask_t channelMask,
+                                    size_t frameCount    = 0,
+                                    audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                                    callback_t cbf       = NULL,
+                                    void* user           = NULL,
+                                    int32_t notificationFrames = 0,
+                                    audio_session_t sessionId  = AUDIO_SESSION_ALLOCATE,
+                                    transfer_type transferType = TRANSFER_DEFAULT,
+                                    const audio_offload_info_t *offloadInfo = NULL,
+                                    uid_t uid = AUDIO_UID_INVALID,
+                                    pid_t pid = -1,
+                                    const audio_attributes_t* pAttributes = NULL,
+                                    bool doNotReconnect = false,
+                                    float maxRequiredSpeed = 1.0f);
+
+    /* Creates an audio track and registers it with AudioFlinger.
+     * With this constructor, the track is configured for static buffer mode.
+     * Data to be rendered is passed in a shared memory buffer
+     * identified by the argument sharedBuffer, which should be non-0.
+     * If sharedBuffer is zero, this constructor is equivalent to the previous constructor
+     * but without the ability to specify a non-zero value for the frameCount parameter.
+     * The memory should be initialized to the desired data before calling start().
+     * The write() method is not supported in this case.
+     * It is recommended to pass a callback function to be notified of playback end by an
+     * EVENT_UNDERRUN event.
+     */
+
+                        AudioTrack( audio_stream_type_t streamType,
+                                    uint32_t sampleRate,
+                                    audio_format_t format,
+                                    audio_channel_mask_t channelMask,
+                                    const sp<IMemory>& sharedBuffer,
+                                    audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                                    callback_t cbf      = NULL,
+                                    void* user          = NULL,
+                                    int32_t notificationFrames = 0,
+                                    audio_session_t sessionId   = AUDIO_SESSION_ALLOCATE,
+                                    transfer_type transferType = TRANSFER_DEFAULT,
+                                    const audio_offload_info_t *offloadInfo = NULL,
+                                    uid_t uid = AUDIO_UID_INVALID,
+                                    pid_t pid = -1,
+                                    const audio_attributes_t* pAttributes = NULL,
+                                    bool doNotReconnect = false,
+                                    float maxRequiredSpeed = 1.0f);
+
+    /* Terminates the AudioTrack and unregisters it from AudioFlinger.
+     * Also destroys all resources associated with the AudioTrack.
+     */
+protected:
+                        virtual ~AudioTrack();
+public:
+
+    /* Initialize an AudioTrack that was created using the AudioTrack() constructor.
+     * Don't call set() more than once, or after the AudioTrack() constructors that take parameters.
+     * set() is not multi-thread safe.
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful initialization
+     *  - INVALID_OPERATION: AudioTrack is already initialized
+     *  - BAD_VALUE: invalid parameter (channelMask, format, sampleRate...)
+     *  - NO_INIT: audio server or audio hardware not initialized
+     * If status is not equal to NO_ERROR, don't call any other APIs on this AudioTrack.
+     * If sharedBuffer is non-0, the frameCount parameter is ignored and
+     * replaced by the shared buffer's total allocated size in frame units.
+     *
+     * Parameters not listed in the AudioTrack constructors above:
+     *
+     * threadCanCallJava:  Whether callbacks are made from an attached thread and thus can call JNI.
+     *
+     * Internal state post condition:
+     *      (mStreamType == AUDIO_STREAM_DEFAULT) implies this AudioTrack has valid attributes
+     */
+            status_t    set(audio_stream_type_t streamType,
+                            uint32_t sampleRate,
+                            audio_format_t format,
+                            audio_channel_mask_t channelMask,
+                            size_t frameCount   = 0,
+                            audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                            callback_t cbf      = NULL,
+                            void* user          = NULL,
+                            int32_t notificationFrames = 0,
+                            const sp<IMemory>& sharedBuffer = 0,
+                            bool threadCanCallJava = false,
+                            audio_session_t sessionId  = AUDIO_SESSION_ALLOCATE,
+                            transfer_type transferType = TRANSFER_DEFAULT,
+                            const audio_offload_info_t *offloadInfo = NULL,
+                            uid_t uid = AUDIO_UID_INVALID,
+                            pid_t pid = -1,
+                            const audio_attributes_t* pAttributes = NULL,
+                            bool doNotReconnect = false,
+                            float maxRequiredSpeed = 1.0f);
+
+    /* Result of constructing the AudioTrack. This must be checked for successful initialization
+     * before using any AudioTrack API (except for set()), because using
+     * an uninitialized AudioTrack produces undefined results.
+     * See set() method above for possible return codes.
+     */
+            status_t    initCheck() const   { return mStatus; }
+
+    /* Returns this track's estimated latency in milliseconds.
+     * This includes the latency due to AudioTrack buffer size, AudioMixer (if any)
+     * and audio hardware driver.
+     */
+            uint32_t    latency() const     { return mLatency; }
+
+    /* Returns the number of application-level buffer underruns
+     * since the AudioTrack was created.
+     */
+            uint32_t    getUnderrunCount() const;
+
+    /* getters, see constructors and set() */
+
+            audio_stream_type_t streamType() const;
+            audio_format_t format() const   { return mFormat; }
+
+    /* Return frame size in bytes, which for linear PCM is
+     * channelCount * (bit depth per channel / 8).
+     * channelCount is determined from channelMask, and bit depth comes from format.
+     * For non-linear formats, the frame size is typically 1 byte.
+     */
+            size_t      frameSize() const   { return mFrameSize; }
+
+            uint32_t    channelCount() const { return mChannelCount; }
+            size_t      frameCount() const  { return mFrameCount; }
+
+    /*
+     * Return the period of the notification callback in frames.
+     * This value is set when the AudioTrack is constructed.
+     * It can be modified if the AudioTrack is rerouted.
+     */
+            uint32_t    getNotificationPeriodInFrames() const { return mNotificationFramesAct; }
+
+    /* Return effective size of audio buffer that an application writes to
+     * or a negative error if the track is uninitialized.
+     */
+            ssize_t     getBufferSizeInFrames();
+
+    /* Returns the buffer duration in microseconds at current playback rate.
+     */
+            status_t    getBufferDurationInUs(int64_t *duration);
+
+    /* Set the effective size of audio buffer that an application writes to.
+     * This is used to determine the amount of available room in the buffer,
+     * which determines when a write will block.
+     * This allows an application to raise and lower the audio latency.
+     * The requested size may be adjusted so that it is
+     * greater or equal to the absolute minimum and
+     * less than or equal to the getBufferCapacityInFrames().
+     * It may also be adjusted slightly for internal reasons.
+     *
+     * Return the final size or a negative error if the track is unitialized
+     * or does not support variable sizes.
+     */
+            ssize_t     setBufferSizeInFrames(size_t size);
+
+    /* Return the static buffer specified in constructor or set(), or 0 for streaming mode */
+            sp<IMemory> sharedBuffer() const { return mSharedBuffer; }
+
+    /* After it's created the track is not active. Call start() to
+     * make it active. If set, the callback will start being called.
+     * If the track was previously paused, volume is ramped up over the first mix buffer.
+     */
+            status_t        start();
+
+    /* Stop a track.
+     * In static buffer mode, the track is stopped immediately.
+     * In streaming mode, the callback will cease being called.  Note that obtainBuffer() still
+     * works and will fill up buffers until the pool is exhausted, and then will return WOULD_BLOCK.
+     * In streaming mode the stop does not occur immediately: any data remaining in the buffer
+     * is first drained, mixed, and output, and only then is the track marked as stopped.
+     */
+            void        stop();
+            bool        stopped() const;
+
+    /* Flush a stopped or paused track. All previously buffered data is discarded immediately.
+     * This has the effect of draining the buffers without mixing or output.
+     * Flush is intended for streaming mode, for example before switching to non-contiguous content.
+     * This function is a no-op if the track is not stopped or paused, or uses a static buffer.
+     */
+            void        flush();
+
+    /* Pause a track. After pause, the callback will cease being called and
+     * obtainBuffer returns WOULD_BLOCK. Note that obtainBuffer() still works
+     * and will fill up buffers until the pool is exhausted.
+     * Volume is ramped down over the next mix buffer following the pause request,
+     * and then the track is marked as paused.  It can be resumed with ramp up by start().
+     */
+            void        pause();
+
+    /* Set volume for this track, mostly used for games' sound effects
+     * left and right volumes. Levels must be >= 0.0 and <= 1.0.
+     * This is the older API.  New applications should use setVolume(float) when possible.
+     */
+            status_t    setVolume(float left, float right);
+
+    /* Set volume for all channels.  This is the preferred API for new applications,
+     * especially for multi-channel content.
+     */
+            status_t    setVolume(float volume);
+
+    /* Set the send level for this track. An auxiliary effect should be attached
+     * to the track with attachEffect(). Level must be >= 0.0 and <= 1.0.
+     */
+            status_t    setAuxEffectSendLevel(float level);
+            void        getAuxEffectSendLevel(float* level) const;
+
+    /* Set source sample rate for this track in Hz, mostly used for games' sound effects.
+     * Zero is not permitted.
+     */
+            status_t    setSampleRate(uint32_t sampleRate);
+
+    /* Return current source sample rate in Hz.
+     * If specified as zero in constructor or set(), this will be the sink sample rate.
+     */
+            uint32_t    getSampleRate() const;
+
+    /* Return the original source sample rate in Hz. This corresponds to the sample rate
+     * if playback rate had normal speed and pitch.
+     */
+            uint32_t    getOriginalSampleRate() const;
+
+    /* Set source playback rate for timestretch
+     * 1.0 is normal speed: < 1.0 is slower, > 1.0 is faster
+     * 1.0 is normal pitch: < 1.0 is lower pitch, > 1.0 is higher pitch
+     *
+     * AUDIO_TIMESTRETCH_SPEED_MIN <= speed <= AUDIO_TIMESTRETCH_SPEED_MAX
+     * AUDIO_TIMESTRETCH_PITCH_MIN <= pitch <= AUDIO_TIMESTRETCH_PITCH_MAX
+     *
+     * Speed increases the playback rate of media, but does not alter pitch.
+     * Pitch increases the "tonal frequency" of media, but does not affect the playback rate.
+     */
+            status_t    setPlaybackRate(const AudioPlaybackRate &playbackRate);
+
+    /* Return current playback rate */
+            const AudioPlaybackRate& getPlaybackRate() const;
+
+    /* Enables looping and sets the start and end points of looping.
+     * Only supported for static buffer mode.
+     *
+     * Parameters:
+     *
+     * loopStart:   loop start in frames relative to start of buffer.
+     * loopEnd:     loop end in frames relative to start of buffer.
+     * loopCount:   number of loops to execute. Calling setLoop() with loopCount == 0 cancels any
+     *              pending or active loop. loopCount == -1 means infinite looping.
+     *
+     * For proper operation the following condition must be respected:
+     *      loopCount != 0 implies 0 <= loopStart < loopEnd <= frameCount().
+     *
+     * If the loop period (loopEnd - loopStart) is too small for the implementation to support,
+     * setLoop() will return BAD_VALUE.  loopCount must be >= -1.
+     *
+     */
+            status_t    setLoop(uint32_t loopStart, uint32_t loopEnd, int loopCount);
+
+    /* Sets marker position. When playback reaches the number of frames specified, a callback with
+     * event type EVENT_MARKER is called. Calling setMarkerPosition with marker == 0 cancels marker
+     * notification callback.  To set a marker at a position which would compute as 0,
+     * a workaround is to set the marker at a nearby position such as ~0 or 1.
+     * If the AudioTrack has been opened with no callback function associated, the operation will
+     * fail.
+     *
+     * Parameters:
+     *
+     * marker:   marker position expressed in wrapping (overflow) frame units,
+     *           like the return value of getPosition().
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioTrack has no callback installed.
+     */
+            status_t    setMarkerPosition(uint32_t marker);
+            status_t    getMarkerPosition(uint32_t *marker) const;
+
+    /* Sets position update period. Every time the number of frames specified has been played,
+     * a callback with event type EVENT_NEW_POS is called.
+     * Calling setPositionUpdatePeriod with updatePeriod == 0 cancels new position notification
+     * callback.
+     * If the AudioTrack has been opened with no callback function associated, the operation will
+     * fail.
+     * Extremely small values may be rounded up to a value the implementation can support.
+     *
+     * Parameters:
+     *
+     * updatePeriod:  position update notification period expressed in frames.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioTrack has no callback installed.
+     */
+            status_t    setPositionUpdatePeriod(uint32_t updatePeriod);
+            status_t    getPositionUpdatePeriod(uint32_t *updatePeriod) const;
+
+    /* Sets playback head position.
+     * Only supported for static buffer mode.
+     *
+     * Parameters:
+     *
+     * position:  New playback head position in frames relative to start of buffer.
+     *            0 <= position <= frameCount().  Note that end of buffer is permitted,
+     *            but will result in an immediate underrun if started.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioTrack is not stopped or paused, or is streaming mode.
+     *  - BAD_VALUE: The specified position is beyond the number of frames present in AudioTrack
+     *               buffer
+     */
+            status_t    setPosition(uint32_t position);
+
+    /* Return the total number of frames played since playback start.
+     * The counter will wrap (overflow) periodically, e.g. every ~27 hours at 44.1 kHz.
+     * It is reset to zero by flush(), reload(), and stop().
+     *
+     * Parameters:
+     *
+     *  position:  Address where to return play head position.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - BAD_VALUE:  position is NULL
+     */
+            status_t    getPosition(uint32_t *position);
+
+    /* For static buffer mode only, this returns the current playback position in frames
+     * relative to start of buffer.  It is analogous to the position units used by
+     * setLoop() and setPosition().  After underrun, the position will be at end of buffer.
+     */
+            status_t    getBufferPosition(uint32_t *position);
+
+    /* Forces AudioTrack buffer full condition. When playing a static buffer, this method avoids
+     * rewriting the buffer before restarting playback after a stop.
+     * This method must be called with the AudioTrack in paused or stopped state.
+     * Not allowed in streaming mode.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioTrack is not stopped or paused, or is streaming mode.
+     */
+            status_t    reload();
+
+    /* Returns a handle on the audio output used by this AudioTrack.
+     *
+     * Parameters:
+     *  none.
+     *
+     * Returned value:
+     *  handle on audio hardware output, or AUDIO_IO_HANDLE_NONE if the
+     *  track needed to be re-created but that failed
+     */
+private:
+            audio_io_handle_t    getOutput() const;
+public:
+
+    /* Selects the audio device to use for output of this AudioTrack. A value of
+     * AUDIO_PORT_HANDLE_NONE indicates default (AudioPolicyManager) routing.
+     *
+     * Parameters:
+     *  The device ID of the selected device (as returned by the AudioDevicesManager API).
+     *
+     * Returned value:
+     *  - NO_ERROR: successful operation
+     *    TODO: what else can happen here?
+     */
+            status_t    setOutputDevice(audio_port_handle_t deviceId);
+
+    /* Returns the ID of the audio device selected for this AudioTrack.
+     * A value of AUDIO_PORT_HANDLE_NONE indicates default (AudioPolicyManager) routing.
+     *
+     * Parameters:
+     *  none.
+     */
+     audio_port_handle_t getOutputDevice();
+
+     /* Returns the ID of the audio device actually used by the output to which this AudioTrack is
+      * attached.
+      * A value of AUDIO_PORT_HANDLE_NONE indicates the audio track is not attached to any output.
+      *
+      * Parameters:
+      *  none.
+      */
+     audio_port_handle_t getRoutedDeviceId();
+
+    /* Returns the unique session ID associated with this track.
+     *
+     * Parameters:
+     *  none.
+     *
+     * Returned value:
+     *  AudioTrack session ID.
+     */
+            audio_session_t getSessionId() const { return mSessionId; }
+
+    /* Attach track auxiliary output to specified effect. Use effectId = 0
+     * to detach track from effect.
+     *
+     * Parameters:
+     *
+     * effectId:  effectId obtained from AudioEffect::id().
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the effect is not an auxiliary effect.
+     *  - BAD_VALUE: The specified effect ID is invalid
+     */
+            status_t    attachAuxEffect(int effectId);
+
+    /* Public API for TRANSFER_OBTAIN mode.
+     * Obtains a buffer of up to "audioBuffer->frameCount" empty slots for frames.
+     * After filling these slots with data, the caller should release them with releaseBuffer().
+     * If the track buffer is not full, obtainBuffer() returns as many contiguous
+     * [empty slots for] frames as are available immediately.
+     *
+     * If nonContig is non-NULL, it is an output parameter that will be set to the number of
+     * additional non-contiguous frames that are predicted to be available immediately,
+     * if the client were to release the first frames and then call obtainBuffer() again.
+     * This value is only a prediction, and needs to be confirmed.
+     * It will be set to zero for an error return.
+     *
+     * If the track buffer is full and track is stopped, obtainBuffer() returns WOULD_BLOCK
+     * regardless of the value of waitCount.
+     * If the track buffer is full and track is not stopped, obtainBuffer() blocks with a
+     * maximum timeout based on waitCount; see chart below.
+     * Buffers will be returned until the pool
+     * is exhausted, at which point obtainBuffer() will either block
+     * or return WOULD_BLOCK depending on the value of the "waitCount"
+     * parameter.
+     *
+     * Interpretation of waitCount:
+     *  +n  limits wait time to n * WAIT_PERIOD_MS,
+     *  -1  causes an (almost) infinite wait time,
+     *   0  non-blocking.
+     *
+     * Buffer fields
+     * On entry:
+     *  frameCount  number of [empty slots for] frames requested
+     *  size        ignored
+     *  raw         ignored
+     * After error return:
+     *  frameCount  0
+     *  size        0
+     *  raw         undefined
+     * After successful return:
+     *  frameCount  actual number of [empty slots for] frames available, <= number requested
+     *  size        actual number of bytes available
+     *  raw         pointer to the buffer
+     */
+            status_t    obtainBuffer(Buffer* audioBuffer, int32_t waitCount,
+                                size_t *nonContig = NULL);
+
+private:
+    /* If nonContig is non-NULL, it is an output parameter that will be set to the number of
+     * additional non-contiguous frames that are predicted to be available immediately,
+     * if the client were to release the first frames and then call obtainBuffer() again.
+     * This value is only a prediction, and needs to be confirmed.
+     * It will be set to zero for an error return.
+     * FIXME We could pass an array of Buffers instead of only one Buffer to obtainBuffer(),
+     * in case the requested amount of frames is in two or more non-contiguous regions.
+     * FIXME requested and elapsed are both relative times.  Consider changing to absolute time.
+     */
+            status_t    obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
+                                     struct timespec *elapsed = NULL, size_t *nonContig = NULL);
+public:
+
+    /* Public API for TRANSFER_OBTAIN mode.
+     * Release a filled buffer of frames for AudioFlinger to process.
+     *
+     * Buffer fields:
+     *  frameCount  currently ignored but recommend to set to actual number of frames filled
+     *  size        actual number of bytes filled, must be multiple of frameSize
+     *  raw         ignored
+     */
+            void        releaseBuffer(const Buffer* audioBuffer);
+
+    /* As a convenience we provide a write() interface to the audio buffer.
+     * Input parameter 'size' is in byte units.
+     * This is implemented on top of obtainBuffer/releaseBuffer. For best
+     * performance use callbacks. Returns actual number of bytes written >= 0,
+     * or one of the following negative status codes:
+     *      INVALID_OPERATION   AudioTrack is configured for static buffer or streaming mode
+     *      BAD_VALUE           size is invalid
+     *      WOULD_BLOCK         when obtainBuffer() returns same, or
+     *                          AudioTrack was stopped during the write
+     *      DEAD_OBJECT         when AudioFlinger dies or the output device changes and
+     *                          the track cannot be automatically restored.
+     *                          The application needs to recreate the AudioTrack
+     *                          because the audio device changed or AudioFlinger died.
+     *                          This typically occurs for direct or offload tracks
+     *                          or if mDoNotReconnect is true.
+     *      or any other error code returned by IAudioTrack::start() or restoreTrack_l().
+     * Default behavior is to only return when all data has been transferred. Set 'blocking' to
+     * false for the method to return immediately without waiting to try multiple times to write
+     * the full content of the buffer.
+     */
+            ssize_t     write(const void* buffer, size_t size, bool blocking = true);
+
+    /*
+     * Dumps the state of an audio track.
+     * Not a general-purpose API; intended only for use by media player service to dump its tracks.
+     */
+            status_t    dump(int fd, const Vector<String16>& args) const;
+
+    /*
+     * Return the total number of frames which AudioFlinger desired but were unavailable,
+     * and thus which resulted in an underrun.  Reset to zero by stop().
+     */
+            uint32_t    getUnderrunFrames() const;
+
+    /* Get the flags */
+            audio_output_flags_t getFlags() const { AutoMutex _l(mLock); return mFlags; }
+
+    /* Set parameters - only possible when using direct output */
+            status_t    setParameters(const String8& keyValuePairs);
+
+    /* Sets the volume shaper object */
+            VolumeShaper::Status applyVolumeShaper(
+                    const sp<VolumeShaper::Configuration>& configuration,
+                    const sp<VolumeShaper::Operation>& operation);
+
+    /* Gets the volume shaper state */
+            sp<VolumeShaper::State> getVolumeShaperState(int id);
+
+    /* Get parameters */
+            String8     getParameters(const String8& keys);
+
+    /* Poll for a timestamp on demand.
+     * Use if EVENT_NEW_TIMESTAMP is not delivered often enough for your needs,
+     * or if you need to get the most recent timestamp outside of the event callback handler.
+     * Caution: calling this method too often may be inefficient;
+     * if you need a high resolution mapping between frame position and presentation time,
+     * consider implementing that at application level, based on the low resolution timestamps.
+     * Returns NO_ERROR    if timestamp is valid.
+     *         WOULD_BLOCK if called in STOPPED or FLUSHED state, or if called immediately after
+     *                     start/ACTIVE, when the number of frames consumed is less than the
+     *                     overall hardware latency to physical output. In WOULD_BLOCK cases,
+     *                     one might poll again, or use getPosition(), or use 0 position and
+     *                     current time for the timestamp.
+     *         DEAD_OBJECT if AudioFlinger dies or the output device changes and
+     *                     the track cannot be automatically restored.
+     *                     The application needs to recreate the AudioTrack
+     *                     because the audio device changed or AudioFlinger died.
+     *                     This typically occurs for direct or offload tracks
+     *                     or if mDoNotReconnect is true.
+     *         INVALID_OPERATION  wrong state, or some other error.
+     *
+     * The timestamp parameter is undefined on return, if status is not NO_ERROR.
+     */
+            status_t    getTimestamp(AudioTimestamp& timestamp);
+private:
+            status_t    getTimestamp_l(AudioTimestamp& timestamp);
+public:
+
+    /* Return the extended timestamp, with additional timebase info and improved drain behavior.
+     *
+     * This is similar to the AudioTrack.java API:
+     * getTimestamp(@NonNull AudioTimestamp timestamp, @AudioTimestamp.Timebase int timebase)
+     *
+     * Some differences between this method and the getTimestamp(AudioTimestamp& timestamp) method
+     *
+     *   1. stop() by itself does not reset the frame position.
+     *      A following start() resets the frame position to 0.
+     *   2. flush() by itself does not reset the frame position.
+     *      The frame position advances by the number of frames flushed,
+     *      when the first frame after flush reaches the audio sink.
+     *   3. BOOTTIME clock offsets are provided to help synchronize with
+     *      non-audio streams, e.g. sensor data.
+     *   4. Position is returned with 64 bits of resolution.
+     *
+     * Parameters:
+     *  timestamp: A pointer to the caller allocated ExtendedTimestamp.
+     *
+     * Returns NO_ERROR    on success; timestamp is filled with valid data.
+     *         BAD_VALUE   if timestamp is NULL.
+     *         WOULD_BLOCK if called immediately after start() when the number
+     *                     of frames consumed is less than the
+     *                     overall hardware latency to physical output. In WOULD_BLOCK cases,
+     *                     one might poll again, or use getPosition(), or use 0 position and
+     *                     current time for the timestamp.
+     *                     If WOULD_BLOCK is returned, the timestamp is still
+     *                     modified with the LOCATION_CLIENT portion filled.
+     *         DEAD_OBJECT if AudioFlinger dies or the output device changes and
+     *                     the track cannot be automatically restored.
+     *                     The application needs to recreate the AudioTrack
+     *                     because the audio device changed or AudioFlinger died.
+     *                     This typically occurs for direct or offloaded tracks
+     *                     or if mDoNotReconnect is true.
+     *         INVALID_OPERATION  if called on a offloaded or direct track.
+     *                     Use getTimestamp(AudioTimestamp& timestamp) instead.
+     */
+            status_t getTimestamp(ExtendedTimestamp *timestamp);
+private:
+            status_t getTimestamp_l(ExtendedTimestamp *timestamp);
+public:
+
+    /* Add an AudioDeviceCallback. The caller will be notified when the audio device to which this
+     * AudioTrack is routed is updated.
+     * Replaces any previously installed callback.
+     * Parameters:
+     *  callback:  The callback interface
+     * Returns NO_ERROR if successful.
+     *         INVALID_OPERATION if the same callback is already installed.
+     *         NO_INIT or PREMISSION_DENIED if AudioFlinger service is not reachable
+     *         BAD_VALUE if the callback is NULL
+     */
+            status_t addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback);
+
+    /* remove an AudioDeviceCallback.
+     * Parameters:
+     *  callback:  The callback interface
+     * Returns NO_ERROR if successful.
+     *         INVALID_OPERATION if the callback is not installed
+     *         BAD_VALUE if the callback is NULL
+     */
+            status_t removeAudioDeviceCallback(
+                    const sp<AudioSystem::AudioDeviceCallback>& callback);
+
+    /* Obtain the pending duration in milliseconds for playback of pure PCM
+     * (mixable without embedded timing) data remaining in AudioTrack.
+     *
+     * This is used to estimate the drain time for the client-server buffer
+     * so the choice of ExtendedTimestamp::LOCATION_SERVER is default.
+     * One may optionally request to find the duration to play through the HAL
+     * by specifying a location ExtendedTimestamp::LOCATION_KERNEL; however,
+     * INVALID_OPERATION may be returned if the kernel location is unavailable.
+     *
+     * Returns NO_ERROR  if successful.
+     *         INVALID_OPERATION if ExtendedTimestamp::LOCATION_KERNEL cannot be obtained
+     *                   or the AudioTrack does not contain pure PCM data.
+     *         BAD_VALUE if msec is nullptr or location is invalid.
+     */
+            status_t pendingDuration(int32_t *msec,
+                    ExtendedTimestamp::Location location = ExtendedTimestamp::LOCATION_SERVER);
+
+    /* hasStarted() is used to determine if audio is now audible at the device after
+     * a start() command. The underlying implementation checks a nonzero timestamp position
+     * or increment for the audible assumption.
+     *
+     * hasStarted() returns true if the track has been started() and audio is audible
+     * and no subsequent pause() or flush() has been called.  Immediately after pause() or
+     * flush() hasStarted() will return false.
+     *
+     * If stop() has been called, hasStarted() will return true if audio is still being
+     * delivered or has finished delivery (even if no audio was written) for both offloaded
+     * and normal tracks. This property removes a race condition in checking hasStarted()
+     * for very short clips, where stop() must be called to finish drain.
+     *
+     * In all cases, hasStarted() may turn false briefly after a subsequent start() is called
+     * until audio becomes audible again.
+     */
+            bool hasStarted(); // not const
+
+            bool isPlaying() {
+                AutoMutex lock(mLock);
+                return mState == STATE_ACTIVE || mState == STATE_STOPPING;
+            }
+protected:
+    /* copying audio tracks is not allowed */
+                        AudioTrack(const AudioTrack& other);
+            AudioTrack& operator = (const AudioTrack& other);
+
+    /* a small internal class to handle the callback */
+    class AudioTrackThread : public Thread
+    {
+    public:
+        AudioTrackThread(AudioTrack& receiver, bool bCanCallJava = false);
+
+        // Do not call Thread::requestExitAndWait() without first calling requestExit().
+        // Thread::requestExitAndWait() is not virtual, and the implementation doesn't do enough.
+        virtual void        requestExit();
+
+                void        pause();    // suspend thread from execution at next loop boundary
+                void        resume();   // allow thread to execute, if not requested to exit
+                void        wake();     // wake to handle changed notification conditions.
+
+    private:
+                void        pauseInternal(nsecs_t ns = 0LL);
+                                        // like pause(), but only used internally within thread
+
+        friend class AudioTrack;
+        virtual bool        threadLoop();
+        AudioTrack&         mReceiver;
+        virtual ~AudioTrackThread();
+        Mutex               mMyLock;    // Thread::mLock is private
+        Condition           mMyCond;    // Thread::mThreadExitedCondition is private
+        bool                mPaused;    // whether thread is requested to pause at next loop entry
+        bool                mPausedInt; // whether thread internally requests pause
+        nsecs_t             mPausedNs;  // if mPausedInt then associated timeout, otherwise ignored
+        bool                mIgnoreNextPausedInt;   // skip any internal pause and go immediately
+                                        // to processAudioBuffer() as state may have changed
+                                        // since pause time calculated.
+    };
+
+            // body of AudioTrackThread::threadLoop()
+            // returns the maximum amount of time before we would like to run again, where:
+            //      0           immediately
+            //      > 0         no later than this many nanoseconds from now
+            //      NS_WHENEVER still active but no particular deadline
+            //      NS_INACTIVE inactive so don't run again until re-started
+            //      NS_NEVER    never again
+            static const nsecs_t NS_WHENEVER = -1, NS_INACTIVE = -2, NS_NEVER = -3;
+            nsecs_t processAudioBuffer();
+
+            // caller must hold lock on mLock for all _l methods
+
+            status_t createTrack_l();
+
+            // can only be called when mState != STATE_ACTIVE
+            void flush_l();
+
+            void setLoop_l(uint32_t loopStart, uint32_t loopEnd, int loopCount);
+
+            // FIXME enum is faster than strcmp() for parameter 'from'
+            status_t restoreTrack_l(const char *from);
+
+            uint32_t    getUnderrunCount_l() const;
+
+            bool     isOffloaded() const;
+            bool     isDirect() const;
+            bool     isOffloadedOrDirect() const;
+
+            bool     isOffloaded_l() const
+                { return (mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; }
+
+            bool     isOffloadedOrDirect_l() const
+                { return (mFlags & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD|
+                                                AUDIO_OUTPUT_FLAG_DIRECT)) != 0; }
+
+            bool     isDirect_l() const
+                { return (mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0; }
+
+            // pure pcm data is mixable (which excludes HW_AV_SYNC, with embedded timing)
+            bool     isPurePcmData_l() const
+                { return audio_is_linear_pcm(mFormat)
+                        && (mAttributes.flags & AUDIO_FLAG_HW_AV_SYNC) == 0; }
+
+            // increment mPosition by the delta of mServer, and return new value of mPosition
+            Modulo<uint32_t> updateAndGetPosition_l();
+
+            // check sample rate and speed is compatible with AudioTrack
+            bool     isSampleRateSpeedAllowed_l(uint32_t sampleRate, float speed) const;
+
+            void     restartIfDisabled();
+
+    // Next 4 fields may be changed if IAudioTrack is re-created, but always != 0
+    sp<IAudioTrack>         mAudioTrack;
+    sp<IMemory>             mCblkMemory;
+    audio_track_cblk_t*     mCblk;                  // re-load after mLock.unlock()
+    audio_io_handle_t       mOutput;                // returned by AudioSystem::getOutput()
+
+    sp<AudioTrackThread>    mAudioTrackThread;
+    bool                    mThreadCanCallJava;
+
+    float                   mVolume[2];
+    float                   mSendLevel;
+    mutable uint32_t        mSampleRate;            // mutable because getSampleRate() can update it
+    uint32_t                mOriginalSampleRate;
+    AudioPlaybackRate       mPlaybackRate;
+    float                   mMaxRequiredSpeed;      // use PCM buffer size to allow this speed
+
+    // Corresponds to current IAudioTrack, value is reported back by AudioFlinger to the client.
+    // This allocated buffer size is maintained by the proxy.
+    size_t                  mFrameCount;            // maximum size of buffer
+
+    size_t                  mReqFrameCount;         // frame count to request the first or next time
+                                                    // a new IAudioTrack is needed, non-decreasing
+
+    // The following AudioFlinger server-side values are cached in createAudioTrack_l().
+    // These values can be used for informational purposes until the track is invalidated,
+    // whereupon restoreTrack_l() calls createTrack_l() to update the values.
+    uint32_t                mAfLatency;             // AudioFlinger latency in ms
+    size_t                  mAfFrameCount;          // AudioFlinger frame count
+    uint32_t                mAfSampleRate;          // AudioFlinger sample rate
+
+    // constant after constructor or set()
+    audio_format_t          mFormat;                // as requested by client, not forced to 16-bit
+    audio_stream_type_t     mStreamType;            // mStreamType == AUDIO_STREAM_DEFAULT implies
+                                                    // this AudioTrack has valid attributes
+    uint32_t                mChannelCount;
+    audio_channel_mask_t    mChannelMask;
+    sp<IMemory>             mSharedBuffer;
+    transfer_type           mTransfer;
+    audio_offload_info_t    mOffloadInfoCopy;
+    const audio_offload_info_t* mOffloadInfo;
+    audio_attributes_t      mAttributes;
+
+    size_t                  mFrameSize;             // frame size in bytes
+
+    status_t                mStatus;
+
+    // can change dynamically when IAudioTrack invalidated
+    uint32_t                mLatency;               // in ms
+
+    // Indicates the current track state.  Protected by mLock.
+    enum State {
+        STATE_ACTIVE,
+        STATE_STOPPED,
+        STATE_PAUSED,
+        STATE_PAUSED_STOPPING,
+        STATE_FLUSHED,
+        STATE_STOPPING,
+    }                       mState;
+
+    // for client callback handler
+    callback_t              mCbf;                   // callback handler for events, or NULL
+    void*                   mUserData;
+
+    // for notification APIs
+
+    // next 2 fields are const after constructor or set()
+    uint32_t                mNotificationFramesReq; // requested number of frames between each
+                                                    // notification callback,
+                                                    // at initial source sample rate
+    uint32_t                mNotificationsPerBufferReq;
+                                                    // requested number of notifications per buffer,
+                                                    // currently only used for fast tracks with
+                                                    // default track buffer size
+
+    uint32_t                mNotificationFramesAct; // actual number of frames between each
+                                                    // notification callback,
+                                                    // at initial source sample rate
+    bool                    mRefreshRemaining;      // processAudioBuffer() should refresh
+                                                    // mRemainingFrames and mRetryOnPartialBuffer
+
+                                                    // used for static track cbf and restoration
+    int32_t                 mLoopCount;             // last setLoop loopCount; zero means disabled
+    uint32_t                mLoopStart;             // last setLoop loopStart
+    uint32_t                mLoopEnd;               // last setLoop loopEnd
+    int32_t                 mLoopCountNotified;     // the last loopCount notified by callback.
+                                                    // mLoopCountNotified counts down, matching
+                                                    // the remaining loop count for static track
+                                                    // playback.
+
+    // These are private to processAudioBuffer(), and are not protected by a lock
+    uint32_t                mRemainingFrames;       // number of frames to request in obtainBuffer()
+    bool                    mRetryOnPartialBuffer;  // sleep and retry after partial obtainBuffer()
+    uint32_t                mObservedSequence;      // last observed value of mSequence
+
+    Modulo<uint32_t>        mMarkerPosition;        // in wrapping (overflow) frame units
+    bool                    mMarkerReached;
+    Modulo<uint32_t>        mNewPosition;           // in frames
+    uint32_t                mUpdatePeriod;          // in frames, zero means no EVENT_NEW_POS
+
+    Modulo<uint32_t>        mServer;                // in frames, last known mProxy->getPosition()
+                                                    // which is count of frames consumed by server,
+                                                    // reset by new IAudioTrack,
+                                                    // whether it is reset by stop() is TBD
+    Modulo<uint32_t>        mPosition;              // in frames, like mServer except continues
+                                                    // monotonically after new IAudioTrack,
+                                                    // and could be easily widened to uint64_t
+    Modulo<uint32_t>        mReleased;              // count of frames released to server
+                                                    // but not necessarily consumed by server,
+                                                    // reset by stop() but continues monotonically
+                                                    // after new IAudioTrack to restore mPosition,
+                                                    // and could be easily widened to uint64_t
+    int64_t                 mStartUs;               // the start time after flush or stop.
+                                                    // only used for offloaded and direct tracks.
+    ExtendedTimestamp       mStartEts;              // Extended timestamp at start for normal
+                                                    // AudioTracks.
+    AudioTimestamp          mStartTs;               // Timestamp at start for offloaded or direct
+                                                    // AudioTracks.
+
+    bool                    mPreviousTimestampValid;// true if mPreviousTimestamp is valid
+    bool                    mTimestampStartupGlitchReported; // reduce log spam
+    bool                    mRetrogradeMotionReported; // reduce log spam
+    AudioTimestamp          mPreviousTimestamp;     // used to detect retrograde motion
+    ExtendedTimestamp::Location mPreviousLocation;  // location used for previous timestamp
+
+    uint32_t                mUnderrunCountOffset;   // updated when restoring tracks
+
+    int64_t                 mFramesWritten;         // total frames written. reset to zero after
+                                                    // the start() following stop(). It is not
+                                                    // changed after restoring the track or
+                                                    // after flush.
+    int64_t                 mFramesWrittenServerOffset; // An offset to server frames due to
+                                                    // restoring AudioTrack, or stop/start.
+                                                    // This offset is also used for static tracks.
+    int64_t                 mFramesWrittenAtRestore; // Frames written at restore point (or frames
+                                                    // delivered for static tracks).
+                                                    // -1 indicates no previous restore point.
+
+    audio_output_flags_t    mFlags;                 // same as mOrigFlags, except for bits that may
+                                                    // be denied by client or server, such as
+                                                    // AUDIO_OUTPUT_FLAG_FAST.  mLock must be
+                                                    // held to read or write those bits reliably.
+    audio_output_flags_t    mOrigFlags;             // as specified in constructor or set(), const
+
+    bool                    mDoNotReconnect;
+
+    audio_session_t         mSessionId;
+    int                     mAuxEffectId;
+
+    mutable Mutex           mLock;
+
+    int                     mPreviousPriority;          // before start()
+    SchedPolicy             mPreviousSchedulingGroup;
+    bool                    mAwaitBoost;    // thread should wait for priority boost before running
+
+    // The proxy should only be referenced while a lock is held because the proxy isn't
+    // multi-thread safe, especially the SingleStateQueue part of the proxy.
+    // An exception is that a blocking ClientProxy::obtainBuffer() may be called without a lock,
+    // provided that the caller also holds an extra reference to the proxy and shared memory to keep
+    // them around in case they are replaced during the obtainBuffer().
+    sp<StaticAudioTrackClientProxy> mStaticProxy;   // for type safety only
+    sp<AudioTrackClientProxy>       mProxy;         // primary owner of the memory
+
+    bool                    mInUnderrun;            // whether track is currently in underrun state
+    uint32_t                mPausedPosition;
+
+    // For Device Selection API
+    //  a value of AUDIO_PORT_HANDLE_NONE indicated default (AudioPolicyManager) routing.
+    audio_port_handle_t     mSelectedDeviceId;
+
+    sp<VolumeHandler>       mVolumeHandler;
+
+private:
+    class DeathNotifier : public IBinder::DeathRecipient {
+    public:
+        DeathNotifier(AudioTrack* audioTrack) : mAudioTrack(audioTrack) { }
+    protected:
+        virtual void        binderDied(const wp<IBinder>& who);
+    private:
+        const wp<AudioTrack> mAudioTrack;
+    };
+
+    sp<DeathNotifier>       mDeathNotifier;
+    uint32_t                mSequence;              // incremented for each new IAudioTrack attempt
+    uid_t                   mClientUid;
+    pid_t                   mClientPid;
+
+    sp<AudioSystem::AudioDeviceCallback> mDeviceCallback;
+    audio_port_handle_t     mPortId;  // unique ID allocated by audio policy
+};
+
+}; // namespace android
+
+#endif // ANDROID_AUDIOTRACK_H
diff --git a/media/libaudioclient/include/media/IAudioFlinger.h b/media/libaudioclient/include/media/IAudioFlinger.h
new file mode 100644
index 0000000..0ad4231
--- /dev/null
+++ b/media/libaudioclient/include/media/IAudioFlinger.h
@@ -0,0 +1,271 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IAUDIOFLINGER_H
+#define ANDROID_IAUDIOFLINGER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <utils/RefBase.h>
+#include <utils/Errors.h>
+#include <binder/IInterface.h>
+#include <media/IAudioTrack.h>
+#include <media/IAudioRecord.h>
+#include <media/IAudioFlingerClient.h>
+#include <system/audio.h>
+#include <system/audio_effect.h>
+#include <system/audio_policy.h>
+#include <media/IEffect.h>
+#include <media/IEffectClient.h>
+#include <utils/String8.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class IAudioFlinger : public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(AudioFlinger);
+
+
+    // invariant on exit for all APIs that return an sp<>:
+    //   (return value != 0) == (*status == NO_ERROR)
+
+    /* create an audio track and registers it with AudioFlinger.
+     * return null if the track cannot be created.
+     */
+    virtual sp<IAudioTrack> createTrack(
+                                audio_stream_type_t streamType,
+                                uint32_t sampleRate,
+                                audio_format_t format,
+                                audio_channel_mask_t channelMask,
+                                size_t *pFrameCount,
+                                audio_output_flags_t *flags,
+                                const sp<IMemory>& sharedBuffer,
+                                // On successful return, AudioFlinger takes over the handle
+                                // reference and will release it when the track is destroyed.
+                                // However on failure, the client is responsible for release.
+                                audio_io_handle_t output,
+                                pid_t pid,
+                                pid_t tid,  // -1 means unused, otherwise must be valid non-0
+                                audio_session_t *sessionId,
+                                int clientUid,
+                                status_t *status,
+                                audio_port_handle_t portId) = 0;
+
+    virtual sp<IAudioRecord> openRecord(
+                                // On successful return, AudioFlinger takes over the handle
+                                // reference and will release it when the track is destroyed.
+                                // However on failure, the client is responsible for release.
+                                audio_io_handle_t input,
+                                uint32_t sampleRate,
+                                audio_format_t format,
+                                audio_channel_mask_t channelMask,
+                                const String16& callingPackage,
+                                size_t *pFrameCount,
+                                audio_input_flags_t *flags,
+                                pid_t pid,
+                                pid_t tid,  // -1 means unused, otherwise must be valid non-0
+                                int clientUid,
+                                audio_session_t *sessionId,
+                                size_t *notificationFrames,
+                                sp<IMemory>& cblk,
+                                sp<IMemory>& buffers,   // return value 0 means it follows cblk
+                                status_t *status,
+                                audio_port_handle_t portId) = 0;
+
+    // FIXME Surprisingly, format/latency don't work for input handles
+
+    /* query the audio hardware state. This state never changes,
+     * and therefore can be cached.
+     */
+    virtual     uint32_t    sampleRate(audio_io_handle_t ioHandle) const = 0;
+
+    // reserved; formerly channelCount()
+
+    virtual     audio_format_t format(audio_io_handle_t output) const = 0;
+    virtual     size_t      frameCount(audio_io_handle_t ioHandle) const = 0;
+
+    // return estimated latency in milliseconds
+    virtual     uint32_t    latency(audio_io_handle_t output) const = 0;
+
+    /* set/get the audio hardware state. This will probably be used by
+     * the preference panel, mostly.
+     */
+    virtual     status_t    setMasterVolume(float value) = 0;
+    virtual     status_t    setMasterMute(bool muted) = 0;
+
+    virtual     float       masterVolume() const = 0;
+    virtual     bool        masterMute() const = 0;
+
+    /* set/get stream type state. This will probably be used by
+     * the preference panel, mostly.
+     */
+    virtual     status_t    setStreamVolume(audio_stream_type_t stream, float value,
+                                    audio_io_handle_t output) = 0;
+    virtual     status_t    setStreamMute(audio_stream_type_t stream, bool muted) = 0;
+
+    virtual     float       streamVolume(audio_stream_type_t stream,
+                                    audio_io_handle_t output) const = 0;
+    virtual     bool        streamMute(audio_stream_type_t stream) const = 0;
+
+    // set audio mode
+    virtual     status_t    setMode(audio_mode_t mode) = 0;
+
+    // mic mute/state
+    virtual     status_t    setMicMute(bool state) = 0;
+    virtual     bool        getMicMute() const = 0;
+
+    virtual     status_t    setParameters(audio_io_handle_t ioHandle,
+                                    const String8& keyValuePairs) = 0;
+    virtual     String8     getParameters(audio_io_handle_t ioHandle, const String8& keys)
+                                    const = 0;
+
+    // Register an object to receive audio input/output change and track notifications.
+    // For a given calling pid, AudioFlinger disregards any registrations after the first.
+    // Thus the IAudioFlingerClient must be a singleton per process.
+    virtual void registerClient(const sp<IAudioFlingerClient>& client) = 0;
+
+    // retrieve the audio recording buffer size
+    // FIXME This API assumes a route, and so should be deprecated.
+    virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
+            audio_channel_mask_t channelMask) const = 0;
+
+    virtual status_t openOutput(audio_module_handle_t module,
+                                audio_io_handle_t *output,
+                                audio_config_t *config,
+                                audio_devices_t *devices,
+                                const String8& address,
+                                uint32_t *latencyMs,
+                                audio_output_flags_t flags) = 0;
+    virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1,
+                                    audio_io_handle_t output2) = 0;
+    virtual status_t closeOutput(audio_io_handle_t output) = 0;
+    virtual status_t suspendOutput(audio_io_handle_t output) = 0;
+    virtual status_t restoreOutput(audio_io_handle_t output) = 0;
+
+    virtual status_t openInput(audio_module_handle_t module,
+                               audio_io_handle_t *input,
+                               audio_config_t *config,
+                               audio_devices_t *device,
+                               const String8& address,
+                               audio_source_t source,
+                               audio_input_flags_t flags) = 0;
+    virtual status_t closeInput(audio_io_handle_t input) = 0;
+
+    virtual status_t invalidateStream(audio_stream_type_t stream) = 0;
+
+    virtual status_t setVoiceVolume(float volume) = 0;
+
+    virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames,
+                                    audio_io_handle_t output) const = 0;
+
+    virtual uint32_t getInputFramesLost(audio_io_handle_t ioHandle) const = 0;
+
+    virtual audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use) = 0;
+
+    virtual void acquireAudioSessionId(audio_session_t audioSession, pid_t pid) = 0;
+    virtual void releaseAudioSessionId(audio_session_t audioSession, pid_t pid) = 0;
+
+    virtual status_t queryNumberEffects(uint32_t *numEffects) const = 0;
+
+    virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const = 0;
+
+    virtual status_t getEffectDescriptor(const effect_uuid_t *pEffectUUID,
+                                        effect_descriptor_t *pDescriptor) const = 0;
+
+    virtual sp<IEffect> createEffect(
+                                    effect_descriptor_t *pDesc,
+                                    const sp<IEffectClient>& client,
+                                    int32_t priority,
+                                    // AudioFlinger doesn't take over handle reference from client
+                                    audio_io_handle_t output,
+                                    audio_session_t sessionId,
+                                    const String16& callingPackage,
+                                    pid_t pid,
+                                    status_t *status,
+                                    int *id,
+                                    int *enabled) = 0;
+
+    virtual status_t moveEffects(audio_session_t session, audio_io_handle_t srcOutput,
+                                    audio_io_handle_t dstOutput) = 0;
+
+    virtual audio_module_handle_t loadHwModule(const char *name) = 0;
+
+    // helpers for android.media.AudioManager.getProperty(), see description there for meaning
+    // FIXME move these APIs to AudioPolicy to permit a more accurate implementation
+    // that looks on primary device for a stream with fast flag, primary flag, or first one.
+    virtual uint32_t getPrimaryOutputSamplingRate() = 0;
+    virtual size_t getPrimaryOutputFrameCount() = 0;
+
+    // Intended for AudioService to inform AudioFlinger of device's low RAM attribute,
+    // and should be called at most once.  For a definition of what "low RAM" means, see
+    // android.app.ActivityManager.isLowRamDevice().
+    virtual status_t setLowRamDevice(bool isLowRamDevice) = 0;
+
+    /* List available audio ports and their attributes */
+    virtual status_t listAudioPorts(unsigned int *num_ports,
+                                    struct audio_port *ports) = 0;
+
+    /* Get attributes for a given audio port */
+    virtual status_t getAudioPort(struct audio_port *port) = 0;
+
+    /* Create an audio patch between several source and sink ports */
+    virtual status_t createAudioPatch(const struct audio_patch *patch,
+                                       audio_patch_handle_t *handle) = 0;
+
+    /* Release an audio patch */
+    virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0;
+
+    /* List existing audio patches */
+    virtual status_t listAudioPatches(unsigned int *num_patches,
+                                      struct audio_patch *patches) = 0;
+    /* Set audio port configuration */
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0;
+
+    /* Get the HW synchronization source used for an audio session */
+    virtual audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId) = 0;
+
+    /* Indicate JAVA services are ready (scheduling, power management ...) */
+    virtual status_t systemReady() = 0;
+
+    // Returns the number of frames per audio HAL buffer.
+    virtual size_t frameCountHAL(audio_io_handle_t ioHandle) const = 0;
+};
+
+
+// ----------------------------------------------------------------------------
+
+class BnAudioFlinger : public BnInterface<IAudioFlinger>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+
+    // Requests media.log to start merging log buffers
+    virtual void requestLogMerge() = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_IAUDIOFLINGER_H
diff --git a/include/media/IAudioFlingerClient.h b/media/libaudioclient/include/media/IAudioFlingerClient.h
similarity index 100%
rename from include/media/IAudioFlingerClient.h
rename to media/libaudioclient/include/media/IAudioFlingerClient.h
diff --git a/media/libaudioclient/include/media/IAudioPolicyService.h b/media/libaudioclient/include/media/IAudioPolicyService.h
new file mode 100644
index 0000000..d111fd2
--- /dev/null
+++ b/media/libaudioclient/include/media/IAudioPolicyService.h
@@ -0,0 +1,190 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IAUDIOPOLICYSERVICE_H
+#define ANDROID_IAUDIOPOLICYSERVICE_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <utils/RefBase.h>
+#include <utils/Errors.h>
+#include <binder/IInterface.h>
+#include <media/AudioSystem.h>
+#include <media/AudioPolicy.h>
+#include <media/IAudioPolicyServiceClient.h>
+
+#include <system/audio_policy.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class IAudioPolicyService : public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(AudioPolicyService);
+
+    //
+    // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
+    //
+    virtual status_t setDeviceConnectionState(audio_devices_t device,
+                                              audio_policy_dev_state_t state,
+                                              const char *device_address,
+                                              const char *device_name) = 0;
+    virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
+                                                                  const char *device_address) = 0;
+    virtual status_t handleDeviceConfigChange(audio_devices_t device,
+                                              const char *device_address,
+                                              const char *device_name) = 0;
+    virtual status_t setPhoneState(audio_mode_t state) = 0;
+    virtual status_t setForceUse(audio_policy_force_use_t usage,
+                                    audio_policy_forced_cfg_t config) = 0;
+    virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0;
+    virtual audio_io_handle_t getOutput(audio_stream_type_t stream,
+                                        uint32_t samplingRate = 0,
+                                        audio_format_t format = AUDIO_FORMAT_DEFAULT,
+                                        audio_channel_mask_t channelMask = 0,
+                                        audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                                        const audio_offload_info_t *offloadInfo = NULL) = 0;
+    virtual status_t getOutputForAttr(const audio_attributes_t *attr,
+                                      audio_io_handle_t *output,
+                                      audio_session_t session,
+                                      audio_stream_type_t *stream,
+                                      uid_t uid,
+                                      const audio_config_t *config,
+                                      audio_output_flags_t flags,
+                                      audio_port_handle_t selectedDeviceId,
+                                      audio_port_handle_t *portId) = 0;
+    virtual status_t startOutput(audio_io_handle_t output,
+                                 audio_stream_type_t stream,
+                                 audio_session_t session) = 0;
+    virtual status_t stopOutput(audio_io_handle_t output,
+                                audio_stream_type_t stream,
+                                audio_session_t session) = 0;
+    virtual void releaseOutput(audio_io_handle_t output,
+                               audio_stream_type_t stream,
+                               audio_session_t session) = 0;
+    virtual status_t  getInputForAttr(const audio_attributes_t *attr,
+                              audio_io_handle_t *input,
+                              audio_session_t session,
+                              pid_t pid,
+                              uid_t uid,
+                              const audio_config_base_t *config,
+                              audio_input_flags_t flags,
+                              audio_port_handle_t selectedDeviceId,
+                              audio_port_handle_t *portId) = 0;
+    virtual status_t startInput(audio_io_handle_t input,
+                                audio_session_t session) = 0;
+    virtual status_t stopInput(audio_io_handle_t input,
+                               audio_session_t session) = 0;
+    virtual void releaseInput(audio_io_handle_t input,
+                              audio_session_t session) = 0;
+    virtual status_t initStreamVolume(audio_stream_type_t stream,
+                                      int indexMin,
+                                      int indexMax) = 0;
+    virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
+                                          int index,
+                                          audio_devices_t device) = 0;
+    virtual status_t getStreamVolumeIndex(audio_stream_type_t stream,
+                                          int *index,
+                                          audio_devices_t device) = 0;
+    virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0;
+    virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream) = 0;
+    virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) = 0;
+    virtual status_t registerEffect(const effect_descriptor_t *desc,
+                                    audio_io_handle_t io,
+                                    uint32_t strategy,
+                                    audio_session_t session,
+                                    int id) = 0;
+    virtual status_t unregisterEffect(int id) = 0;
+    virtual status_t setEffectEnabled(int id, bool enabled) = 0;
+    virtual bool     isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const = 0;
+    virtual bool     isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0)
+                             const = 0;
+    virtual bool     isSourceActive(audio_source_t source) const = 0;
+    virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
+                                              effect_descriptor_t *descriptors,
+                                              uint32_t *count) = 0;
+   // Check if offload is possible for given format, stream type, sample rate,
+    // bit rate, duration, video and streaming or offload property is enabled
+    virtual bool isOffloadSupported(const audio_offload_info_t& info) = 0;
+
+    /* List available audio ports and their attributes */
+    virtual status_t listAudioPorts(audio_port_role_t role,
+                                    audio_port_type_t type,
+                                    unsigned int *num_ports,
+                                    struct audio_port *ports,
+                                    unsigned int *generation) = 0;
+
+    /* Get attributes for a given audio port */
+    virtual status_t getAudioPort(struct audio_port *port) = 0;
+
+    /* Create an audio patch between several source and sink ports */
+    virtual status_t createAudioPatch(const struct audio_patch *patch,
+                                       audio_patch_handle_t *handle) = 0;
+
+    /* Release an audio patch */
+    virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0;
+
+    /* List existing audio patches */
+    virtual status_t listAudioPatches(unsigned int *num_patches,
+                                      struct audio_patch *patches,
+                                      unsigned int *generation) = 0;
+    /* Set audio port configuration */
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0;
+
+    virtual void registerClient(const sp<IAudioPolicyServiceClient>& client) = 0;
+
+    virtual void setAudioPortCallbacksEnabled(bool enabled) = 0;
+
+    virtual status_t acquireSoundTriggerSession(audio_session_t *session,
+                                           audio_io_handle_t *ioHandle,
+                                           audio_devices_t *device) = 0;
+
+    virtual status_t releaseSoundTriggerSession(audio_session_t session) = 0;
+
+    virtual audio_mode_t getPhoneState() = 0;
+
+    virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration) = 0;
+
+    virtual status_t startAudioSource(const struct audio_port_config *source,
+                                      const audio_attributes_t *attributes,
+                                      audio_patch_handle_t *handle) = 0;
+    virtual status_t stopAudioSource(audio_patch_handle_t handle) = 0;
+
+    virtual status_t setMasterMono(bool mono) = 0;
+    virtual status_t getMasterMono(bool *mono) = 0;
+};
+
+
+// ----------------------------------------------------------------------------
+
+class BnAudioPolicyService : public BnInterface<IAudioPolicyService>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_IAUDIOPOLICYSERVICE_H
diff --git a/include/media/IAudioPolicyServiceClient.h b/media/libaudioclient/include/media/IAudioPolicyServiceClient.h
similarity index 100%
rename from include/media/IAudioPolicyServiceClient.h
rename to media/libaudioclient/include/media/IAudioPolicyServiceClient.h
diff --git a/include/media/IAudioRecord.h b/media/libaudioclient/include/media/IAudioRecord.h
similarity index 100%
rename from include/media/IAudioRecord.h
rename to media/libaudioclient/include/media/IAudioRecord.h
diff --git a/media/libaudioclient/include/media/IAudioTrack.h b/media/libaudioclient/include/media/IAudioTrack.h
new file mode 100644
index 0000000..27a62d6
--- /dev/null
+++ b/media/libaudioclient/include/media/IAudioTrack.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IAUDIOTRACK_H
+#define ANDROID_IAUDIOTRACK_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/RefBase.h>
+#include <utils/Errors.h>
+#include <binder/IInterface.h>
+#include <binder/IMemory.h>
+#include <utils/String8.h>
+#include <media/AudioTimestamp.h>
+#include <media/VolumeShaper.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class IAudioTrack : public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(AudioTrack);
+
+    /* Get this track's control block */
+    virtual sp<IMemory> getCblk() const = 0;
+
+    /* After it's created the track is not active. Call start() to
+     * make it active.
+     */
+    virtual status_t    start() = 0;
+
+    /* Stop a track. If set, the callback will cease being called and
+     * obtainBuffer will return an error. Buffers that are already released
+     * will continue to be processed, unless/until flush() is called.
+     */
+    virtual void        stop() = 0;
+
+    /* Flush a stopped or paused track. All pending/released buffers are discarded.
+     * This function has no effect if the track is not stopped or paused.
+     */
+    virtual void        flush() = 0;
+
+    /* Pause a track. If set, the callback will cease being called and
+     * obtainBuffer will return an error. Buffers that are already released
+     * will continue to be processed, unless/until flush() is called.
+     */
+    virtual void        pause() = 0;
+
+    /* Attach track auxiliary output to specified effect. Use effectId = 0
+     * to detach track from effect.
+     */
+    virtual status_t    attachAuxEffect(int effectId) = 0;
+
+    /* Send parameters to the audio hardware */
+    virtual status_t    setParameters(const String8& keyValuePairs) = 0;
+
+    /* Return NO_ERROR if timestamp is valid.  timestamp is undefined otherwise. */
+    virtual status_t    getTimestamp(AudioTimestamp& timestamp) = 0;
+
+    /* Signal the playback thread for a change in control block */
+    virtual void        signal() = 0;
+
+    /* Sets the volume shaper */
+    virtual VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration>& configuration,
+            const sp<VolumeShaper::Operation>& operation) = 0;
+
+    /* gets the volume shaper state */
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnAudioTrack : public BnInterface<IAudioTrack>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_IAUDIOTRACK_H
diff --git a/include/media/IEffect.h b/media/libaudioclient/include/media/IEffect.h
similarity index 100%
rename from include/media/IEffect.h
rename to media/libaudioclient/include/media/IEffect.h
diff --git a/include/media/IEffectClient.h b/media/libaudioclient/include/media/IEffectClient.h
similarity index 100%
rename from include/media/IEffectClient.h
rename to media/libaudioclient/include/media/IEffectClient.h
diff --git a/media/libaudioclient/include/media/PlayerBase.h b/media/libaudioclient/include/media/PlayerBase.h
new file mode 100644
index 0000000..fe1db7b
--- /dev/null
+++ b/media/libaudioclient/include/media/PlayerBase.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ANDROID_PLAYER_BASE_H__
+#define __ANDROID_PLAYER_BASE_H__
+
+#include <audiomanager/IPlayer.h>
+#include <audiomanager/AudioManager.h>
+#include <audiomanager/IAudioManager.h>
+
+
+namespace android {
+
+class PlayerBase : public BnPlayer
+{
+public:
+    explicit PlayerBase();
+    virtual ~PlayerBase();
+
+    virtual void destroy() = 0;
+
+    //IPlayer implementation
+    virtual void start();
+    virtual void pause();
+    virtual void stop();
+    virtual void setVolume(float vol);
+    virtual void setPan(float pan);
+    virtual void setStartDelayMs(int32_t delayMs);
+    virtual void applyVolumeShaper(
+            const sp<VolumeShaper::Configuration>& configuration,
+            const sp<VolumeShaper::Operation>& operation) override;
+
+    virtual status_t onTransact(
+                uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags);
+
+
+            status_t startWithStatus();
+
+            //FIXME temporary method while some player state is outside of this class
+            void reportEvent(player_state_t event);
+
+protected:
+
+            void init(player_type_t playerType, audio_usage_t usage);
+            void baseDestroy();
+
+    //IPlayer methods handlers for derived classes
+    virtual status_t playerStart()  { return NO_ERROR; }
+    virtual status_t playerPause()  { return NO_ERROR; }
+    virtual status_t playerStop()  { return NO_ERROR; }
+    virtual status_t playerSetVolume()  { return NO_ERROR; }
+
+    // mutex for IPlayer volume and pan, and player-specific volume
+    Mutex mSettingsLock;
+
+    // volume multipliers coming from the IPlayer volume and pan controls
+    float mPanMultiplierL, mPanMultiplierR;
+    float mVolumeMultiplierL, mVolumeMultiplierR;
+
+private:
+            // report events to AudioService
+            void servicePlayerEvent(player_state_t event);
+            void serviceReleasePlayer();
+
+    // native interface to AudioService
+    android::sp<android::IAudioManager> mAudioManager;
+
+    // player interface ID, uniquely identifies the player in the system
+    audio_unique_id_t mPIId;
+
+    // Mutex for state reporting
+    Mutex mPlayerStateLock;
+    player_state_t mLastReportedEvent;
+};
+
+} // namespace android
+
+#endif /* __ANDROID_PLAYER_BASE_H__ */
diff --git a/media/libaudioclient/include/media/ToneGenerator.h b/media/libaudioclient/include/media/ToneGenerator.h
new file mode 100644
index 0000000..fc3d3ee
--- /dev/null
+++ b/media/libaudioclient/include/media/ToneGenerator.h
@@ -0,0 +1,327 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_TONEGENERATOR_H_
+#define ANDROID_TONEGENERATOR_H_
+
+#include <media/AudioSystem.h>
+#include <media/AudioTrack.h>
+#include <utils/Compat.h>
+#include <utils/KeyedVector.h>
+#include <utils/RefBase.h>
+#include <utils/threads.h>
+
+namespace android {
+
+class ToneGenerator {
+public:
+
+    // List of all available tones
+    // This enum must be kept consistant with constants in ToneGenerator JAVA class
+    enum tone_type {
+        // DTMF tones  ITU-T Recommendation Q.23
+        TONE_DTMF_0 = 0,  // 0 key: 1336Hz, 941Hz
+        TONE_DTMF_1,  // 1 key: 1209Hz, 697Hz
+        TONE_DTMF_2,  // 2 key: 1336Hz, 697Hz
+        TONE_DTMF_3,  // 3 key: 1477Hz, 697Hz
+        TONE_DTMF_4,  // 4 key: 1209Hz, 770Hz
+        TONE_DTMF_5,  // 5 key: 1336Hz, 770Hz
+        TONE_DTMF_6,  // 6 key: 1477Hz, 770Hz
+        TONE_DTMF_7,  // 7 key: 1209Hz, 852Hz
+        TONE_DTMF_8,  // 8 key: 1336Hz, 852Hz
+        TONE_DTMF_9,  // 9 key: 1477Hz, 852Hz
+        TONE_DTMF_S,  // * key: 1209Hz, 941Hz
+        TONE_DTMF_P,  // # key: 1477Hz, 941Hz
+        TONE_DTMF_A,  // A key: 1633Hz, 697Hz
+        TONE_DTMF_B,  // B key: 1633Hz, 770Hz
+        TONE_DTMF_C,  // C key: 1633Hz, 852Hz
+        TONE_DTMF_D,  // D key: 1633Hz, 941Hz
+        // Call supervisory tones:  3GPP TS 22.001 (CEPT)
+        TONE_SUP_DIAL,  // Dial tone: CEPT: 425Hz, continuous
+        FIRST_SUP_TONE = TONE_SUP_DIAL,
+        TONE_SUP_BUSY,  // Busy tone, CEPT: 425Hz, 500ms ON, 500ms OFF...
+        TONE_SUP_CONGESTION,  // Congestion tone CEPT, JAPAN: 425Hz, 200ms ON, 200ms OFF...
+        TONE_SUP_RADIO_ACK,  // Radio path acknowlegment, CEPT, ANSI: 425Hz, 200ms ON
+        TONE_SUP_RADIO_NOTAVAIL,  // Radio path not available: 425Hz, 200ms ON, 200 OFF 3 bursts
+        TONE_SUP_ERROR,  // Error/Special info:  950Hz+1400Hz+1800Hz, 330ms ON, 1s OFF...
+        TONE_SUP_CALL_WAITING,  // Call Waiting CEPT,JAPAN:  425Hz, 200ms ON, 600ms OFF, 200ms ON, 3s OFF...
+        TONE_SUP_RINGTONE,  // Ring Tone CEPT, JAPAN:  425Hz, 1s ON, 4s OFF...
+        LAST_SUP_TONE = TONE_SUP_RINGTONE,
+        // Proprietary tones:  3GPP TS 31.111
+        TONE_PROP_BEEP,  // General beep: 400Hz+1200Hz, 35ms ON
+        TONE_PROP_ACK,  // Positive Acknowlgement: 1200Hz, 100ms ON, 100ms OFF 2 bursts
+        TONE_PROP_NACK,  // Negative Acknowlgement: 300Hz+400Hz+500Hz, 400ms ON
+        TONE_PROP_PROMPT,  // Prompt tone: 400Hz+1200Hz, 200ms ON
+        TONE_PROP_BEEP2,  // General double beep: 400Hz+1200Hz, 35ms ON, 200ms OFF, 35ms on
+        // Additional call supervisory tones: specified by IS-95 only
+        TONE_SUP_INTERCEPT, // Intercept tone: alternating 440 Hz and 620 Hz tones, each on for 250 ms.
+        TONE_SUP_INTERCEPT_ABBREV, // Abbreviated intercept: intercept tone limited to 4 seconds
+        TONE_SUP_CONGESTION_ABBREV, // Abbreviated congestion: congestion tone limited to 4 seconds
+        TONE_SUP_CONFIRM, // Confirm tone: a 350 Hz tone added to a 440 Hz tone repeated 3 times in a 100 ms on, 100 ms off cycle.
+        TONE_SUP_PIP, // Pip tone: four bursts of 480 Hz tone (0.1 s on, 0.1 s off).
+
+        // CDMA Tones
+        TONE_CDMA_DIAL_TONE_LITE,
+        TONE_CDMA_NETWORK_USA_RINGBACK,
+        TONE_CDMA_INTERCEPT,
+        TONE_CDMA_ABBR_INTERCEPT,
+        TONE_CDMA_REORDER,
+        TONE_CDMA_ABBR_REORDER,
+        TONE_CDMA_NETWORK_BUSY,
+        TONE_CDMA_CONFIRM,
+        TONE_CDMA_ANSWER,
+        TONE_CDMA_NETWORK_CALLWAITING,
+        TONE_CDMA_PIP,
+
+        // ISDN
+        TONE_CDMA_CALL_SIGNAL_ISDN_NORMAL,  // ISDN Alert Normal
+        TONE_CDMA_CALL_SIGNAL_ISDN_INTERGROUP, // ISDN Intergroup
+        TONE_CDMA_CALL_SIGNAL_ISDN_SP_PRI, // ISDN SP PRI
+        TONE_CDMA_CALL_SIGNAL_ISDN_PAT3,  // ISDN Alert PAT3
+        TONE_CDMA_CALL_SIGNAL_ISDN_PING_RING, // ISDN Alert PING RING
+        TONE_CDMA_CALL_SIGNAL_ISDN_PAT5,  // ISDN Alert PAT5
+        TONE_CDMA_CALL_SIGNAL_ISDN_PAT6,  // ISDN Alert PAT6
+        TONE_CDMA_CALL_SIGNAL_ISDN_PAT7,  // ISDN Alert PAT7
+        // ISDN end
+
+        // IS54
+        TONE_CDMA_HIGH_L,  // IS54 High Pitch Long
+        TONE_CDMA_MED_L, // IS54 Med Pitch Long
+        TONE_CDMA_LOW_L, // IS54 Low Pitch Long
+        TONE_CDMA_HIGH_SS, // IS54 High Pitch Short Short
+        TONE_CDMA_MED_SS, // IS54 Medium Pitch Short Short
+        TONE_CDMA_LOW_SS, // IS54 Low Pitch Short Short
+        TONE_CDMA_HIGH_SSL, // IS54 High Pitch Short Short Long
+        TONE_CDMA_MED_SSL, // IS54 Medium  Pitch Short Short Long
+        TONE_CDMA_LOW_SSL, // IS54 Low  Pitch Short Short Long
+        TONE_CDMA_HIGH_SS_2, // IS54 High Pitch Short Short 2
+        TONE_CDMA_MED_SS_2, // IS54 Med Pitch Short Short 2
+        TONE_CDMA_LOW_SS_2, // IS54 Low  Pitch Short Short 2
+        TONE_CDMA_HIGH_SLS, // IS54 High Pitch Short Long Short
+        TONE_CDMA_MED_SLS, // IS54 Med Pitch Short Long Short
+        TONE_CDMA_LOW_SLS, // IS54 Low Pitch Short Long Short
+        TONE_CDMA_HIGH_S_X4, // IS54 High Pitch Short Short Short Short
+        TONE_CDMA_MED_S_X4, // IS54 Med Pitch Short Short Short Short
+        TONE_CDMA_LOW_S_X4, // IS54 Low Pitch Short Short Short Short
+        TONE_CDMA_HIGH_PBX_L, // PBX High Pitch Long
+        TONE_CDMA_MED_PBX_L, // PBX Med Pitch Long
+        TONE_CDMA_LOW_PBX_L, // PBX Low  Pitch Long
+        TONE_CDMA_HIGH_PBX_SS, // PBX High Short Short
+        TONE_CDMA_MED_PBX_SS, // PBX Med Short Short
+        TONE_CDMA_LOW_PBX_SS, // PBX Low  Short Short
+        TONE_CDMA_HIGH_PBX_SSL, // PBX High Short Short Long
+        TONE_CDMA_MED_PBX_SSL, // PBX Med Short Short Long
+        TONE_CDMA_LOW_PBX_SSL,  // PBX Low Short Short Long
+        TONE_CDMA_HIGH_PBX_SLS, // PBX High  SLS
+        TONE_CDMA_MED_PBX_SLS,  // PBX Med SLS
+        TONE_CDMA_LOW_PBX_SLS, // PBX Low SLS
+        TONE_CDMA_HIGH_PBX_S_X4, // PBX High SSSS
+        TONE_CDMA_MED_PBX_S_X4, // PBX Med SSSS
+        TONE_CDMA_LOW_PBX_S_X4, // PBX LOW SSSS
+        //IS54 end
+        // proprietary
+        TONE_CDMA_ALERT_NETWORK_LITE,
+        TONE_CDMA_ALERT_AUTOREDIAL_LITE,
+        TONE_CDMA_ONE_MIN_BEEP,
+        TONE_CDMA_KEYPAD_VOLUME_KEY_LITE,
+        TONE_CDMA_PRESSHOLDKEY_LITE,
+        TONE_CDMA_ALERT_INCALL_LITE,
+        TONE_CDMA_EMERGENCY_RINGBACK,
+        TONE_CDMA_ALERT_CALL_GUARD,
+        TONE_CDMA_SOFT_ERROR_LITE,
+        TONE_CDMA_CALLDROP_LITE,
+        // proprietary end
+        TONE_CDMA_NETWORK_BUSY_ONE_SHOT,
+        TONE_CDMA_ABBR_ALERT,
+        TONE_CDMA_SIGNAL_OFF,
+        //CDMA end
+        NUM_TONES,
+        NUM_SUP_TONES = LAST_SUP_TONE-FIRST_SUP_TONE+1
+    };
+
+    ToneGenerator(audio_stream_type_t streamType, float volume, bool threadCanCallJava = false);
+    ~ToneGenerator();
+
+    bool startTone(tone_type toneType, int durationMs = -1);
+    void stopTone();
+
+    bool isInited() { return (mState == TONE_IDLE)?false:true;}
+
+    // returns the audio session this ToneGenerator belongs to or 0 if an error occured.
+    int getSessionId() { return (mpAudioTrack == 0) ? 0 : mpAudioTrack->getSessionId(); }
+
+private:
+
+    enum tone_state {
+        TONE_IDLE,  // ToneGenerator is being initialized or initialization failed
+        TONE_INIT,  // ToneGenerator has been successfully initialized and is not playing
+        TONE_STARTING,  // ToneGenerator is starting playing
+        TONE_PLAYING,  // ToneGenerator is playing
+        TONE_STOPPING,  // ToneGenerator is stoping
+        TONE_STOPPED,  // ToneGenerator is stopped: the AudioTrack will be stopped
+        TONE_RESTARTING  // A start request was received in active state (playing or stopping)
+    };
+
+
+    // Region specific tones.
+    // These supervisory tones are different depending on the region (USA/CANADA, JAPAN, rest of the world).
+    // When a tone in the range [FIRST_SUP_TONE, LAST_SUP_TONE] is requested, the region is determined
+    // from system property gsm.operator.iso-country and the proper tone descriptor is selected with the
+    // help of sToneMappingTable[]
+    enum regional_tone_type {
+        // ANSI supervisory tones
+        TONE_ANSI_DIAL = NUM_TONES, // Dial tone: a continuous 350 Hz + 440 Hz tone.
+        TONE_ANSI_BUSY,             // Busy tone on:  a 480 Hz + 620 Hz tone repeated in a 500 ms on, 500 ms off cycle.
+        TONE_ANSI_CONGESTION,       // Network congestion (reorder) tone on:  a 480 Hz + 620 Hz tone repeated in a 250 ms on, 250 ms off cycle.
+        TONE_ANSI_CALL_WAITING,     // Call waiting tone on: 440 Hz, on for 300 ms, 9,7 s off followed by
+                                    // (440 Hz, on for 100 ms off for 100 ms, on for 100 ms, 9,7s off and repeated as necessary).
+        TONE_ANSI_RINGTONE,         // Ring Tone:  a 440 Hz + 480 Hz tone repeated in a 2 s on, 4 s off pattern.
+        // JAPAN Supervisory tones
+        TONE_JAPAN_DIAL,            // Dial tone: 400Hz, continuous
+        TONE_JAPAN_BUSY,            // Busy tone: 400Hz, 500ms ON, 500ms OFF...
+        TONE_JAPAN_RADIO_ACK,       // Radio path acknowlegment: 400Hz, 1s ON, 2s OFF...
+        // GB Supervisory tones
+        TONE_GB_RINGTONE,           // Ring Tone: A 400Hz + 450Hz tone repeated in a 0.4s on, 0.2s off, 0.4s on, 2.0s off pattern.
+        // AUSTRALIA Supervisory tones
+        TONE_AUSTRALIA_RINGTONE,    // Ring tone: A 400Hz + 450Hz tone repeated in a 0.4s on, 0.2s off, 0.4s on, 2.0s off pattern.
+        TONE_AUSTRALIA_BUSY,        // Busy tone: 425 Hz repeated in a 0.375s on, 0.375s off pattern.
+        TONE_AUSTRALIA_CALL_WAITING,// Call waiting tone: 425Hz tone repeated in a 0.2s on, 0.2s off, 0.2s on, 4.4s off pattern.
+        TONE_AUSTRALIA_CONGESTION,  // Congestion tone: 425Hz tone repeated in a 0.375s on, 0.375s off pattern
+        NUM_ALTERNATE_TONES
+    };
+
+    enum region {
+        ANSI,
+        JAPAN,
+        GB,
+        AUSTRALIA,
+        CEPT,
+        NUM_REGIONS
+    };
+
+    static const unsigned char sToneMappingTable[NUM_REGIONS-1][NUM_SUP_TONES];
+
+    static const unsigned int TONEGEN_MAX_WAVES = 3;     // Maximun number of sine waves in a tone segment
+    static const unsigned int TONEGEN_MAX_SEGMENTS = 12;  // Maximun number of segments in a tone descriptor
+    static const unsigned int TONEGEN_INF = 0xFFFFFFFF;  // Represents infinite time duration
+    static const CONSTEXPR float TONEGEN_GAIN = 0.9;  // Default gain passed to  WaveGenerator().
+
+    // ToneDescriptor class contains all parameters needed to generate a tone:
+    //    - The array waveFreq[]:
+    //         1 for static tone descriptors: contains the frequencies of all individual waves making the multi-tone.
+    //         2 for active tone descritors: contains the indexes of the WaveGenerator objects in mWaveGens
+    //        The number of sine waves varies from 1 to TONEGEN_MAX_WAVES.
+    //        The first null value indicates that no more waves are needed.
+    //    - The array segments[] is used to generate the tone pulses. A segment is a period of time
+    //        during which the tone is ON or OFF.    Segments with even index (starting from 0)
+    //        correspond to tone ON state and segments with odd index to OFF state.
+    //        The data stored in segments[] is the duration of the corresponding period in ms.
+    //        The first segment encountered with a 0 duration    indicates that no more segment follows.
+    //    - loopCnt - Number of times to repeat a sequence of seqments after playing this
+    //    - loopIndx - The segment index to go back and play is loopcnt > 0
+    //    - repeatCnt indicates the number of times the sequence described by segments[] array must be repeated.
+    //        When the tone generator encounters the first 0 duration segment, it will compare repeatCnt to mCurCount.
+    //        If mCurCount > repeatCnt, the tone is stopped automatically. Otherwise, tone sequence will be
+    //        restarted from segment repeatSegment.
+    //    - repeatSegment number of the first repeated segment when repeatCnt is not null
+
+    class ToneSegment {
+    public:
+        unsigned int duration;
+        unsigned short waveFreq[TONEGEN_MAX_WAVES+1];
+        unsigned short loopCnt;
+        unsigned short loopIndx;
+    };
+
+    class ToneDescriptor {
+    public:
+        ToneSegment segments[TONEGEN_MAX_SEGMENTS+1];
+        unsigned long repeatCnt;
+        unsigned long repeatSegment;
+    };
+
+    static const ToneDescriptor sToneDescriptors[];
+
+    bool mThreadCanCallJava;
+    unsigned int mTotalSmp;  // Total number of audio samples played (gives current time)
+    unsigned int mNextSegSmp;  // Position of next segment transition expressed in samples
+    // NOTE: because mTotalSmp, mNextSegSmp are stored on 32 bit, current design will operate properly
+    // only if tone duration is less than about 27 Hours(@44100Hz sampling rate). If this time is exceeded,
+    // no crash will occur but tone sequence will show a glitch.
+    unsigned int mMaxSmp;  // Maximum number of audio samples played (maximun tone duration)
+    int mDurationMs;  // Maximum tone duration in ms
+
+    unsigned short mCurSegment;  // Current segment index in ToneDescriptor segments[]
+    unsigned short mCurCount;  // Current sequence repeat count
+    volatile unsigned short mState;  // ToneGenerator state (tone_state)
+    unsigned short mRegion;
+    const ToneDescriptor *mpToneDesc;  // pointer to active tone descriptor
+    const ToneDescriptor *mpNewToneDesc;  // pointer to next active tone descriptor
+
+    unsigned short mLoopCounter; // Current tone loopback count
+
+    uint32_t mSamplingRate;  // AudioFlinger Sampling rate
+    sp<AudioTrack> mpAudioTrack;  // Pointer to audio track used for playback
+    Mutex mLock;  // Mutex to control concurent access to ToneGenerator object from audio callback and application API
+    Mutex mCbkCondLock; // Mutex associated to mWaitCbkCond
+    Condition mWaitCbkCond; // condition enabling interface to wait for audio callback completion after a change is requested
+    float mVolume;  // Volume applied to audio track
+    audio_stream_type_t mStreamType; // Audio stream used for output
+    unsigned int mProcessSize;  // Size of audio blocks generated at a time by audioCallback() (in PCM frames).
+    struct timespec mStartTime; // tone start time: needed to guaranty actual tone duration
+
+    bool initAudioTrack();
+    static void audioCallback(int event, void* user, void *info);
+    bool prepareWave();
+    unsigned int numWaves(unsigned int segmentIdx);
+    void clearWaveGens();
+    tone_type getToneForRegion(tone_type toneType);
+
+    // WaveGenerator generates a single sine wave
+    class WaveGenerator {
+    public:
+        enum gen_command {
+            WAVEGEN_START,  // Start/restart wave from phase 0
+            WAVEGEN_CONT,  // Continue wave from current phase
+            WAVEGEN_STOP  // Stop wave on zero crossing
+        };
+
+        WaveGenerator(uint32_t samplingRate, unsigned short frequency,
+                float volume);
+        ~WaveGenerator();
+
+        void getSamples(short *outBuffer, unsigned int count,
+                unsigned int command);
+
+    private:
+        static const short GEN_AMP = 32000;  // amplitude of generator
+        static const short S_Q14 = 14;  // shift for Q14
+        static const short S_Q15 = 15;  // shift for Q15
+
+        short mA1_Q14;  // Q14 coefficient
+        // delay line of full amplitude generator
+        long mS1, mS2;  // delay line S2 oldest
+        short mS2_0;  // saved value for reinitialisation
+        short mAmplitude_Q15;  // Q15 amplitude
+    };
+
+    KeyedVector<unsigned short, WaveGenerator *> mWaveGens;  // list of active wave generators.
+};
+
+}
+;  // namespace android
+
+#endif /*ANDROID_TONEGENERATOR_H_*/
diff --git a/media/libaudioclient/include/media/TrackPlayerBase.h b/media/libaudioclient/include/media/TrackPlayerBase.h
new file mode 100644
index 0000000..2d113c0
--- /dev/null
+++ b/media/libaudioclient/include/media/TrackPlayerBase.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ANDROID_TRACK_PLAYER_BASE_H__
+#define __ANDROID_TRACK_PLAYER_BASE_H__
+
+#include <media/AudioTrack.h>
+#include <media/PlayerBase.h>
+
+namespace android {
+
+class TrackPlayerBase : public PlayerBase
+{
+public:
+    explicit TrackPlayerBase();
+    virtual ~TrackPlayerBase();
+
+            void init(AudioTrack* pat, player_type_t playerType, audio_usage_t usage);
+    virtual void destroy();
+
+    //IPlayer implementation
+    virtual void applyVolumeShaper(
+            const sp<VolumeShaper::Configuration>& configuration,
+            const sp<VolumeShaper::Operation>& operation);
+
+    //FIXME move to protected field, so far made public to minimize changes to AudioTrack logic
+    sp<AudioTrack> mAudioTrack;
+
+            void setPlayerVolume(float vl, float vr);
+
+protected:
+
+    //PlayerBase virtuals
+    virtual status_t playerStart();
+    virtual status_t playerPause();
+    virtual status_t playerStop();
+    virtual status_t playerSetVolume();
+
+private:
+            void doDestroy();
+            status_t doSetVolume();
+
+    // volume coming from the player volume API
+    float mPlayerVolumeL, mPlayerVolumeR;
+};
+
+} // namespace android
+
+#endif /* __ANDROID_TRACK_PLAYER_BASE_H__ */
diff --git a/media/libaudiohal/Android.mk b/media/libaudiohal/Android.mk
new file mode 100644
index 0000000..e592169
--- /dev/null
+++ b/media/libaudiohal/Android.mk
@@ -0,0 +1,70 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SHARED_LIBRARIES := \
+    libcutils   \
+    liblog      \
+    libutils    \
+    libhardware
+
+LOCAL_SRC_FILES := \
+    DeviceHalLocal.cpp          \
+    DevicesFactoryHalHybrid.cpp \
+    DevicesFactoryHalLocal.cpp  \
+    StreamHalLocal.cpp
+
+LOCAL_CFLAGS := -Wall -Werror
+
+ifeq ($(USE_LEGACY_LOCAL_AUDIO_HAL), true)
+
+# Use audiohal directly w/o hwbinder middleware.
+# This is for performance comparison and debugging only.
+
+LOCAL_SRC_FILES += \
+    EffectBufferHalLocal.cpp    \
+    EffectsFactoryHalLocal.cpp  \
+    EffectHalLocal.cpp
+
+LOCAL_SHARED_LIBRARIES += \
+    libeffects
+
+LOCAL_CFLAGS += -DUSE_LEGACY_LOCAL_AUDIO_HAL
+
+else  # if !USE_LEGACY_LOCAL_AUDIO_HAL
+
+LOCAL_SRC_FILES += \
+    ConversionHelperHidl.cpp   \
+    HalDeathHandlerHidl.cpp    \
+    DeviceHalHidl.cpp          \
+    DevicesFactoryHalHidl.cpp  \
+    EffectBufferHalHidl.cpp    \
+    EffectHalHidl.cpp          \
+    EffectsFactoryHalHidl.cpp  \
+    StreamHalHidl.cpp
+
+LOCAL_SHARED_LIBRARIES += \
+    libbase          \
+    libfmq           \
+    libhwbinder      \
+    libhidlbase      \
+    libhidlmemory    \
+    libhidltransport \
+    android.hardware.audio@2.0             \
+    android.hardware.audio.common@2.0      \
+    android.hardware.audio.common@2.0-util \
+    android.hardware.audio.effect@2.0      \
+    android.hidl.allocator@1.0             \
+    android.hidl.memory@1.0                \
+    libmedia_helper  \
+    libmediautils
+
+endif  # USE_LEGACY_LOCAL_AUDIO_HAL
+
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+
+LOCAL_MODULE := libaudiohal
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libaudiohal/ConversionHelperHidl.cpp b/media/libaudiohal/ConversionHelperHidl.cpp
new file mode 100644
index 0000000..f60bf8b
--- /dev/null
+++ b/media/libaudiohal/ConversionHelperHidl.cpp
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string.h>
+
+#define LOG_TAG "HalHidl"
+#include <media/AudioParameter.h>
+#include <utils/Log.h>
+
+#include "ConversionHelperHidl.h"
+
+using ::android::hardware::audio::V2_0::Result;
+
+namespace android {
+
+// static
+status_t ConversionHelperHidl::keysFromHal(const String8& keys, hidl_vec<hidl_string> *hidlKeys) {
+    AudioParameter halKeys(keys);
+    if (halKeys.size() == 0) return BAD_VALUE;
+    hidlKeys->resize(halKeys.size());
+    //FIXME:  keyStreamSupportedChannels and keyStreamSupportedSamplingRates come with a
+    // "keyFormat=<value>" pair. We need to transform it into a single key string so that it is
+    // carried over to the legacy HAL via HIDL.
+    String8 value;
+    bool keepFormatValue = halKeys.size() == 2 &&
+         (halKeys.get(String8(AudioParameter::keyStreamSupportedChannels), value) == NO_ERROR ||
+         halKeys.get(String8(AudioParameter::keyStreamSupportedSamplingRates), value) == NO_ERROR);
+
+    for (size_t i = 0; i < halKeys.size(); ++i) {
+        String8 key;
+        status_t status = halKeys.getAt(i, key);
+        if (status != OK) return status;
+        if (keepFormatValue && key == AudioParameter::keyFormat) {
+            AudioParameter formatParam;
+            halKeys.getAt(i, key, value);
+            formatParam.add(key, value);
+            key = formatParam.toString();
+        }
+        (*hidlKeys)[i] = key.string();
+    }
+    return OK;
+}
+
+// static
+status_t ConversionHelperHidl::parametersFromHal(
+        const String8& kvPairs, hidl_vec<ParameterValue> *hidlParams) {
+    AudioParameter params(kvPairs);
+    if (params.size() == 0) return BAD_VALUE;
+    hidlParams->resize(params.size());
+    for (size_t i = 0; i < params.size(); ++i) {
+        String8 key, value;
+        status_t status = params.getAt(i, key, value);
+        if (status != OK) return status;
+        (*hidlParams)[i].key = key.string();
+        (*hidlParams)[i].value = value.string();
+    }
+    return OK;
+}
+
+// static
+void ConversionHelperHidl::parametersToHal(
+        const hidl_vec<ParameterValue>& parameters, String8 *values) {
+    AudioParameter params;
+    for (size_t i = 0; i < parameters.size(); ++i) {
+        params.add(String8(parameters[i].key.c_str()), String8(parameters[i].value.c_str()));
+    }
+    values->setTo(params.toString());
+}
+
+ConversionHelperHidl::ConversionHelperHidl(const char* className)
+        : mClassName(className) {
+}
+
+// static
+status_t ConversionHelperHidl::analyzeResult(const Result& result) {
+    switch (result) {
+        case Result::OK: return OK;
+        case Result::INVALID_ARGUMENTS: return BAD_VALUE;
+        case Result::INVALID_STATE: return NOT_ENOUGH_DATA;
+        case Result::NOT_INITIALIZED: return NO_INIT;
+        case Result::NOT_SUPPORTED: return INVALID_OPERATION;
+        default: return NO_INIT;
+    }
+}
+
+void ConversionHelperHidl::emitError(const char* funcName, const char* description) {
+    ALOGE("%s %p %s: %s (from rpc)", mClassName, this, funcName, description);
+}
+
+}  // namespace android
diff --git a/media/libaudiohal/ConversionHelperHidl.h b/media/libaudiohal/ConversionHelperHidl.h
new file mode 100644
index 0000000..c356f37
--- /dev/null
+++ b/media/libaudiohal/ConversionHelperHidl.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CONVERSION_HELPER_HIDL_H
+#define ANDROID_HARDWARE_CONVERSION_HELPER_HIDL_H
+
+#include <android/hardware/audio/2.0/types.h>
+#include <hidl/HidlSupport.h>
+#include <utils/String8.h>
+
+using ::android::hardware::audio::V2_0::ParameterValue;
+using ::android::hardware::Return;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+
+namespace android {
+
+class ConversionHelperHidl {
+  protected:
+    static status_t keysFromHal(const String8& keys, hidl_vec<hidl_string> *hidlKeys);
+    static status_t parametersFromHal(const String8& kvPairs, hidl_vec<ParameterValue> *hidlParams);
+    static void parametersToHal(const hidl_vec<ParameterValue>& parameters, String8 *values);
+
+    ConversionHelperHidl(const char* className);
+
+    template<typename R, typename T>
+    status_t processReturn(const char* funcName, const Return<R>& ret, T *retval) {
+        if (ret.isOk()) {
+            // This way it also works for enum class to unscoped enum conversion.
+            *retval = static_cast<T>(static_cast<R>(ret));
+            return OK;
+        }
+        return processReturn(funcName, ret);
+    }
+
+    template<typename T>
+    status_t processReturn(const char* funcName, const Return<T>& ret) {
+        if (!ret.isOk()) {
+            emitError(funcName, ret.description().c_str());
+        }
+        return ret.isOk() ? OK : FAILED_TRANSACTION;
+    }
+
+    status_t processReturn(const char* funcName, const Return<hardware::audio::V2_0::Result>& ret) {
+        if (!ret.isOk()) {
+            emitError(funcName, ret.description().c_str());
+        }
+        return ret.isOk() ? analyzeResult(ret) : FAILED_TRANSACTION;
+    }
+
+    template<typename T>
+    status_t processReturn(
+            const char* funcName, const Return<T>& ret, hardware::audio::V2_0::Result retval) {
+        if (!ret.isOk()) {
+            emitError(funcName, ret.description().c_str());
+        }
+        return ret.isOk() ? analyzeResult(retval) : FAILED_TRANSACTION;
+    }
+
+  private:
+    const char* mClassName;
+
+    static status_t analyzeResult(const hardware::audio::V2_0::Result& result);
+
+    void emitError(const char* funcName, const char* description);
+};
+
+}  // namespace android
+
+#endif // ANDROID_HARDWARE_CONVERSION_HELPER_HIDL_H
diff --git a/media/libaudiohal/DeviceHalHidl.cpp b/media/libaudiohal/DeviceHalHidl.cpp
new file mode 100644
index 0000000..71fbd98
--- /dev/null
+++ b/media/libaudiohal/DeviceHalHidl.cpp
@@ -0,0 +1,360 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+
+#define LOG_TAG "DeviceHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <android/hardware/audio/2.0/IPrimaryDevice.h>
+#include <cutils/native_handle.h>
+#include <hwbinder/IPCThreadState.h>
+#include <utils/Log.h>
+
+#include "DeviceHalHidl.h"
+#include "HidlUtils.h"
+#include "StreamHalHidl.h"
+
+using ::android::hardware::audio::common::V2_0::AudioConfig;
+using ::android::hardware::audio::common::V2_0::AudioDevice;
+using ::android::hardware::audio::common::V2_0::AudioInputFlag;
+using ::android::hardware::audio::common::V2_0::AudioOutputFlag;
+using ::android::hardware::audio::common::V2_0::AudioPatchHandle;
+using ::android::hardware::audio::common::V2_0::AudioPort;
+using ::android::hardware::audio::common::V2_0::AudioPortConfig;
+using ::android::hardware::audio::common::V2_0::AudioMode;
+using ::android::hardware::audio::common::V2_0::AudioSource;
+using ::android::hardware::audio::V2_0::DeviceAddress;
+using ::android::hardware::audio::V2_0::IPrimaryDevice;
+using ::android::hardware::audio::V2_0::ParameterValue;
+using ::android::hardware::audio::V2_0::Result;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+
+namespace android {
+
+namespace {
+
+status_t deviceAddressFromHal(
+        audio_devices_t device, const char* halAddress, DeviceAddress* address) {
+    address->device = AudioDevice(device);
+
+    if (address == nullptr || strnlen(halAddress, AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0) {
+        return OK;
+    }
+    const bool isInput = (device & AUDIO_DEVICE_BIT_IN) != 0;
+    if (isInput) device &= ~AUDIO_DEVICE_BIT_IN;
+    if ((!isInput && (device & AUDIO_DEVICE_OUT_ALL_A2DP) != 0)
+            || (isInput && (device & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) != 0)) {
+        int status = sscanf(halAddress,
+                "%hhX:%hhX:%hhX:%hhX:%hhX:%hhX",
+                &address->address.mac[0], &address->address.mac[1], &address->address.mac[2],
+                &address->address.mac[3], &address->address.mac[4], &address->address.mac[5]);
+        return status == 6 ? OK : BAD_VALUE;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_IP) != 0)
+            || (isInput && (device & AUDIO_DEVICE_IN_IP) != 0)) {
+        int status = sscanf(halAddress,
+                "%hhu.%hhu.%hhu.%hhu",
+                &address->address.ipv4[0], &address->address.ipv4[1],
+                &address->address.ipv4[2], &address->address.ipv4[3]);
+        return status == 4 ? OK : BAD_VALUE;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_ALL_USB)) != 0
+            || (isInput && (device & AUDIO_DEVICE_IN_ALL_USB)) != 0) {
+        int status = sscanf(halAddress,
+                "card=%d;device=%d",
+                &address->address.alsa.card, &address->address.alsa.device);
+        return status == 2 ? OK : BAD_VALUE;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_BUS) != 0)
+            || (isInput && (device & AUDIO_DEVICE_IN_BUS) != 0)) {
+        if (halAddress != NULL) {
+            address->busAddress = halAddress;
+            return OK;
+        }
+        return BAD_VALUE;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_REMOTE_SUBMIX)) != 0
+            || (isInput && (device & AUDIO_DEVICE_IN_REMOTE_SUBMIX) != 0)) {
+        if (halAddress != NULL) {
+            address->rSubmixAddress = halAddress;
+            return OK;
+        }
+        return BAD_VALUE;
+    }
+    return OK;
+}
+
+}  // namespace
+
+DeviceHalHidl::DeviceHalHidl(const sp<IDevice>& device)
+        : ConversionHelperHidl("Device"), mDevice(device) {
+}
+
+DeviceHalHidl::~DeviceHalHidl() {
+    if (mDevice != 0) {
+        mDevice.clear();
+        hardware::IPCThreadState::self()->flushCommands();
+    }
+}
+
+status_t DeviceHalHidl::getSupportedDevices(uint32_t*) {
+    // Obsolete.
+    return INVALID_OPERATION;
+}
+
+status_t DeviceHalHidl::initCheck() {
+    if (mDevice == 0) return NO_INIT;
+    return processReturn("initCheck", mDevice->initCheck());
+}
+
+status_t DeviceHalHidl::setVoiceVolume(float volume) {
+    if (mDevice == 0) return NO_INIT;
+    sp<IPrimaryDevice> primaryDev = IPrimaryDevice::castFrom(mDevice);
+    if (primaryDev == 0) return INVALID_OPERATION;
+    return processReturn("setVoiceVolume", primaryDev->setVoiceVolume(volume));
+}
+
+status_t DeviceHalHidl::setMasterVolume(float volume) {
+    if (mDevice == 0) return NO_INIT;
+    sp<IPrimaryDevice> primaryDev = IPrimaryDevice::castFrom(mDevice);
+    if (primaryDev == 0) return INVALID_OPERATION;
+    return processReturn("setMasterVolume", primaryDev->setMasterVolume(volume));
+}
+
+status_t DeviceHalHidl::getMasterVolume(float *volume) {
+    if (mDevice == 0) return NO_INIT;
+    sp<IPrimaryDevice> primaryDev = IPrimaryDevice::castFrom(mDevice);
+    if (primaryDev == 0) return INVALID_OPERATION;
+    Result retval;
+    Return<void> ret = primaryDev->getMasterVolume(
+            [&](Result r, float v) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *volume = v;
+                }
+            });
+    return processReturn("getMasterVolume", ret, retval);
+}
+
+status_t DeviceHalHidl::setMode(audio_mode_t mode) {
+    if (mDevice == 0) return NO_INIT;
+    sp<IPrimaryDevice> primaryDev = IPrimaryDevice::castFrom(mDevice);
+    if (primaryDev == 0) return INVALID_OPERATION;
+    return processReturn("setMode", primaryDev->setMode(AudioMode(mode)));
+}
+
+status_t DeviceHalHidl::setMicMute(bool state) {
+    if (mDevice == 0) return NO_INIT;
+    return processReturn("setMicMute", mDevice->setMicMute(state));
+}
+
+status_t DeviceHalHidl::getMicMute(bool *state) {
+    if (mDevice == 0) return NO_INIT;
+    Result retval;
+    Return<void> ret = mDevice->getMicMute(
+            [&](Result r, bool mute) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *state = mute;
+                }
+            });
+    return processReturn("getMicMute", ret, retval);
+}
+
+status_t DeviceHalHidl::setMasterMute(bool state) {
+    if (mDevice == 0) return NO_INIT;
+    return processReturn("setMasterMute", mDevice->setMasterMute(state));
+}
+
+status_t DeviceHalHidl::getMasterMute(bool *state) {
+    if (mDevice == 0) return NO_INIT;
+    Result retval;
+    Return<void> ret = mDevice->getMasterMute(
+            [&](Result r, bool mute) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *state = mute;
+                }
+            });
+    return processReturn("getMasterMute", ret, retval);
+}
+
+status_t DeviceHalHidl::setParameters(const String8& kvPairs) {
+    if (mDevice == 0) return NO_INIT;
+    hidl_vec<ParameterValue> hidlParams;
+    status_t status = parametersFromHal(kvPairs, &hidlParams);
+    if (status != OK) return status;
+    return processReturn("setParameters", mDevice->setParameters(hidlParams));
+}
+
+status_t DeviceHalHidl::getParameters(const String8& keys, String8 *values) {
+    values->clear();
+    if (mDevice == 0) return NO_INIT;
+    hidl_vec<hidl_string> hidlKeys;
+    status_t status = keysFromHal(keys, &hidlKeys);
+    if (status != OK) return status;
+    Result retval;
+    Return<void> ret = mDevice->getParameters(
+            hidlKeys,
+            [&](Result r, const hidl_vec<ParameterValue>& parameters) {
+                retval = r;
+                if (retval == Result::OK) {
+                    parametersToHal(parameters, values);
+                }
+            });
+    return processReturn("getParameters", ret, retval);
+}
+
+status_t DeviceHalHidl::getInputBufferSize(
+        const struct audio_config *config, size_t *size) {
+    if (mDevice == 0) return NO_INIT;
+    AudioConfig hidlConfig;
+    HidlUtils::audioConfigFromHal(*config, &hidlConfig);
+    Result retval;
+    Return<void> ret = mDevice->getInputBufferSize(
+            hidlConfig,
+            [&](Result r, uint64_t bufferSize) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *size = static_cast<size_t>(bufferSize);
+                }
+            });
+    return processReturn("getInputBufferSize", ret, retval);
+}
+
+status_t DeviceHalHidl::openOutputStream(
+        audio_io_handle_t handle,
+        audio_devices_t devices,
+        audio_output_flags_t flags,
+        struct audio_config *config,
+        const char *address,
+        sp<StreamOutHalInterface> *outStream) {
+    if (mDevice == 0) return NO_INIT;
+    DeviceAddress hidlDevice;
+    status_t status = deviceAddressFromHal(devices, address, &hidlDevice);
+    if (status != OK) return status;
+    AudioConfig hidlConfig;
+    HidlUtils::audioConfigFromHal(*config, &hidlConfig);
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mDevice->openOutputStream(
+            handle,
+            hidlDevice,
+            hidlConfig,
+            AudioOutputFlag(flags),
+            [&](Result r, const sp<IStreamOut>& result, const AudioConfig& suggestedConfig) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *outStream = new StreamOutHalHidl(result);
+                }
+                HidlUtils::audioConfigToHal(suggestedConfig, config);
+            });
+    return processReturn("openOutputStream", ret, retval);
+}
+
+status_t DeviceHalHidl::openInputStream(
+        audio_io_handle_t handle,
+        audio_devices_t devices,
+        struct audio_config *config,
+        audio_input_flags_t flags,
+        const char *address,
+        audio_source_t source,
+        sp<StreamInHalInterface> *inStream) {
+    if (mDevice == 0) return NO_INIT;
+    DeviceAddress hidlDevice;
+    status_t status = deviceAddressFromHal(devices, address, &hidlDevice);
+    if (status != OK) return status;
+    AudioConfig hidlConfig;
+    HidlUtils::audioConfigFromHal(*config, &hidlConfig);
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mDevice->openInputStream(
+            handle,
+            hidlDevice,
+            hidlConfig,
+            AudioInputFlag(flags),
+            AudioSource(source),
+            [&](Result r, const sp<IStreamIn>& result, const AudioConfig& suggestedConfig) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *inStream = new StreamInHalHidl(result);
+                }
+                HidlUtils::audioConfigToHal(suggestedConfig, config);
+            });
+    return processReturn("openInputStream", ret, retval);
+}
+
+status_t DeviceHalHidl::supportsAudioPatches(bool *supportsPatches) {
+    if (mDevice == 0) return NO_INIT;
+    return processReturn("supportsAudioPatches", mDevice->supportsAudioPatches(), supportsPatches);
+}
+
+status_t DeviceHalHidl::createAudioPatch(
+        unsigned int num_sources,
+        const struct audio_port_config *sources,
+        unsigned int num_sinks,
+        const struct audio_port_config *sinks,
+        audio_patch_handle_t *patch) {
+    if (mDevice == 0) return NO_INIT;
+    hidl_vec<AudioPortConfig> hidlSources, hidlSinks;
+    HidlUtils::audioPortConfigsFromHal(num_sources, sources, &hidlSources);
+    HidlUtils::audioPortConfigsFromHal(num_sinks, sinks, &hidlSinks);
+    Result retval;
+    Return<void> ret = mDevice->createAudioPatch(
+            hidlSources, hidlSinks,
+            [&](Result r, AudioPatchHandle hidlPatch) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *patch = static_cast<audio_patch_handle_t>(hidlPatch);
+                }
+            });
+    return processReturn("createAudioPatch", ret, retval);
+}
+
+status_t DeviceHalHidl::releaseAudioPatch(audio_patch_handle_t patch) {
+    if (mDevice == 0) return NO_INIT;
+    return processReturn("releaseAudioPatch", mDevice->releaseAudioPatch(patch));
+}
+
+status_t DeviceHalHidl::getAudioPort(struct audio_port *port) {
+    if (mDevice == 0) return NO_INIT;
+    AudioPort hidlPort;
+    HidlUtils::audioPortFromHal(*port, &hidlPort);
+    Result retval;
+    Return<void> ret = mDevice->getAudioPort(
+            hidlPort,
+            [&](Result r, const AudioPort& p) {
+                retval = r;
+                if (retval == Result::OK) {
+                    HidlUtils::audioPortToHal(p, port);
+                }
+            });
+    return processReturn("getAudioPort", ret, retval);
+}
+
+status_t DeviceHalHidl::setAudioPortConfig(const struct audio_port_config *config) {
+    if (mDevice == 0) return NO_INIT;
+    AudioPortConfig hidlConfig;
+    HidlUtils::audioPortConfigFromHal(*config, &hidlConfig);
+    return processReturn("setAudioPortConfig", mDevice->setAudioPortConfig(hidlConfig));
+}
+
+status_t DeviceHalHidl::dump(int fd) {
+    if (mDevice == 0) return NO_INIT;
+    native_handle_t* hidlHandle = native_handle_create(1, 0);
+    hidlHandle->data[0] = fd;
+    Return<void> ret = mDevice->debugDump(hidlHandle);
+    native_handle_delete(hidlHandle);
+    return processReturn("dump", ret);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/DeviceHalHidl.h b/media/libaudiohal/DeviceHalHidl.h
new file mode 100644
index 0000000..9da02a4
--- /dev/null
+++ b/media/libaudiohal/DeviceHalHidl.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICE_HAL_HIDL_H
+#define ANDROID_HARDWARE_DEVICE_HAL_HIDL_H
+
+#include <android/hardware/audio/2.0/IDevice.h>
+#include <media/audiohal/DeviceHalInterface.h>
+
+#include "ConversionHelperHidl.h"
+
+using ::android::hardware::audio::V2_0::IDevice;
+using ::android::hardware::Return;
+
+namespace android {
+
+class DeviceHalHidl : public DeviceHalInterface, public ConversionHelperHidl
+{
+  public:
+    // Sets the value of 'devices' to a bitmask of 1 or more values of audio_devices_t.
+    virtual status_t getSupportedDevices(uint32_t *devices);
+
+    // Check to see if the audio hardware interface has been initialized.
+    virtual status_t initCheck();
+
+    // Set the audio volume of a voice call. Range is between 0.0 and 1.0.
+    virtual status_t setVoiceVolume(float volume);
+
+    // Set the audio volume for all audio activities other than voice call.
+    virtual status_t setMasterVolume(float volume);
+
+    // Get the current master volume value for the HAL.
+    virtual status_t getMasterVolume(float *volume);
+
+    // Called when the audio mode changes.
+    virtual status_t setMode(audio_mode_t mode);
+
+    // Muting control.
+    virtual status_t setMicMute(bool state);
+    virtual status_t getMicMute(bool *state);
+    virtual status_t setMasterMute(bool state);
+    virtual status_t getMasterMute(bool *state);
+
+    // Set global audio parameters.
+    virtual status_t setParameters(const String8& kvPairs);
+
+    // Get global audio parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values);
+
+    // Returns audio input buffer size according to parameters passed.
+    virtual status_t getInputBufferSize(const struct audio_config *config,
+            size_t *size);
+
+    // Creates and opens the audio hardware output stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openOutputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            audio_output_flags_t flags,
+            struct audio_config *config,
+            const char *address,
+            sp<StreamOutHalInterface> *outStream);
+
+    // Creates and opens the audio hardware input stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openInputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            struct audio_config *config,
+            audio_input_flags_t flags,
+            const char *address,
+            audio_source_t source,
+            sp<StreamInHalInterface> *inStream);
+
+    // Returns whether createAudioPatch and releaseAudioPatch operations are supported.
+    virtual status_t supportsAudioPatches(bool *supportsPatches);
+
+    // Creates an audio patch between several source and sink ports.
+    virtual status_t createAudioPatch(
+            unsigned int num_sources,
+            const struct audio_port_config *sources,
+            unsigned int num_sinks,
+            const struct audio_port_config *sinks,
+            audio_patch_handle_t *patch);
+
+    // Releases an audio patch.
+    virtual status_t releaseAudioPatch(audio_patch_handle_t patch);
+
+    // Fills the list of supported attributes for a given audio port.
+    virtual status_t getAudioPort(struct audio_port *port);
+
+    // Set audio port configuration.
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config);
+
+    virtual status_t dump(int fd);
+
+  private:
+    friend class DevicesFactoryHalHidl;
+    sp<IDevice> mDevice;
+
+    // Can not be constructed directly by clients.
+    explicit DeviceHalHidl(const sp<IDevice>& device);
+
+    // The destructor automatically closes the device.
+    virtual ~DeviceHalHidl();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICE_HAL_HIDL_H
diff --git a/media/libaudiohal/DeviceHalLocal.cpp b/media/libaudiohal/DeviceHalLocal.cpp
new file mode 100644
index 0000000..fc098f5
--- /dev/null
+++ b/media/libaudiohal/DeviceHalLocal.cpp
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "DeviceHalLocal"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+
+#include "DeviceHalLocal.h"
+#include "StreamHalLocal.h"
+
+namespace android {
+
+DeviceHalLocal::DeviceHalLocal(audio_hw_device_t *dev)
+        : mDev(dev) {
+}
+
+DeviceHalLocal::~DeviceHalLocal() {
+    int status = audio_hw_device_close(mDev);
+    ALOGW_IF(status, "Error closing audio hw device %p: %s", mDev, strerror(-status));
+    mDev = 0;
+}
+
+status_t DeviceHalLocal::getSupportedDevices(uint32_t *devices) {
+    if (mDev->get_supported_devices == NULL) return INVALID_OPERATION;
+    *devices = mDev->get_supported_devices(mDev);
+    return OK;
+}
+
+status_t DeviceHalLocal::initCheck() {
+    return mDev->init_check(mDev);
+}
+
+status_t DeviceHalLocal::setVoiceVolume(float volume) {
+    return mDev->set_voice_volume(mDev, volume);
+}
+
+status_t DeviceHalLocal::setMasterVolume(float volume) {
+    if (mDev->set_master_volume == NULL) return INVALID_OPERATION;
+    return mDev->set_master_volume(mDev, volume);
+}
+
+status_t DeviceHalLocal::getMasterVolume(float *volume) {
+    if (mDev->get_master_volume == NULL) return INVALID_OPERATION;
+    return mDev->get_master_volume(mDev, volume);
+}
+
+status_t DeviceHalLocal::setMode(audio_mode_t mode) {
+    return mDev->set_mode(mDev, mode);
+}
+
+status_t DeviceHalLocal::setMicMute(bool state) {
+    return mDev->set_mic_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::getMicMute(bool *state) {
+    return mDev->get_mic_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::setMasterMute(bool state) {
+    if (mDev->set_master_mute == NULL) return INVALID_OPERATION;
+    return mDev->set_master_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::getMasterMute(bool *state) {
+    if (mDev->get_master_mute == NULL) return INVALID_OPERATION;
+    return mDev->get_master_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::setParameters(const String8& kvPairs) {
+    return mDev->set_parameters(mDev, kvPairs.string());
+}
+
+status_t DeviceHalLocal::getParameters(const String8& keys, String8 *values) {
+    char *halValues = mDev->get_parameters(mDev, keys.string());
+    if (halValues != NULL) {
+        values->setTo(halValues);
+        free(halValues);
+    } else {
+        values->clear();
+    }
+    return OK;
+}
+
+status_t DeviceHalLocal::getInputBufferSize(
+        const struct audio_config *config, size_t *size) {
+    *size = mDev->get_input_buffer_size(mDev, config);
+    return OK;
+}
+
+status_t DeviceHalLocal::openOutputStream(
+        audio_io_handle_t handle,
+        audio_devices_t devices,
+        audio_output_flags_t flags,
+        struct audio_config *config,
+        const char *address,
+        sp<StreamOutHalInterface> *outStream) {
+    audio_stream_out_t *halStream;
+    ALOGV("open_output_stream handle: %d devices: %x flags: %#x"
+            "srate: %d format %#x channels %x address %s",
+            handle, devices, flags,
+            config->sample_rate, config->format, config->channel_mask,
+            address);
+    int openResut = mDev->open_output_stream(
+            mDev, handle, devices, flags, config, &halStream, address);
+    if (openResut == OK) {
+        *outStream = new StreamOutHalLocal(halStream, this);
+    }
+    ALOGV("open_output_stream status %d stream %p", openResut, halStream);
+    return openResut;
+}
+
+status_t DeviceHalLocal::openInputStream(
+        audio_io_handle_t handle,
+        audio_devices_t devices,
+        struct audio_config *config,
+        audio_input_flags_t flags,
+        const char *address,
+        audio_source_t source,
+        sp<StreamInHalInterface> *inStream) {
+    audio_stream_in_t *halStream;
+    ALOGV("open_input_stream handle: %d devices: %x flags: %#x "
+            "srate: %d format %#x channels %x address %s source %d",
+            handle, devices, flags,
+            config->sample_rate, config->format, config->channel_mask,
+            address, source);
+    int openResult = mDev->open_input_stream(
+            mDev, handle, devices, config, &halStream, flags, address, source);
+    if (openResult == OK) {
+        *inStream = new StreamInHalLocal(halStream, this);
+    }
+    ALOGV("open_input_stream status %d stream %p", openResult, inStream);
+    return openResult;
+}
+
+status_t DeviceHalLocal::supportsAudioPatches(bool *supportsPatches) {
+    *supportsPatches = version() >= AUDIO_DEVICE_API_VERSION_3_0;
+    return OK;
+}
+
+status_t DeviceHalLocal::createAudioPatch(
+        unsigned int num_sources,
+        const struct audio_port_config *sources,
+        unsigned int num_sinks,
+        const struct audio_port_config *sinks,
+        audio_patch_handle_t *patch) {
+    if (version() >= AUDIO_DEVICE_API_VERSION_3_0) {
+        return mDev->create_audio_patch(
+                mDev, num_sources, sources, num_sinks, sinks, patch);
+    } else {
+        return INVALID_OPERATION;
+    }
+}
+
+status_t DeviceHalLocal::releaseAudioPatch(audio_patch_handle_t patch) {
+    if (version() >= AUDIO_DEVICE_API_VERSION_3_0) {
+        return mDev->release_audio_patch(mDev, patch);
+    } else {
+        return INVALID_OPERATION;
+    }
+}
+
+status_t DeviceHalLocal::getAudioPort(struct audio_port *port) {
+    return mDev->get_audio_port(mDev, port);
+}
+
+status_t DeviceHalLocal::setAudioPortConfig(const struct audio_port_config *config) {
+    if (version() >= AUDIO_DEVICE_API_VERSION_3_0)
+        return mDev->set_audio_port_config(mDev, config);
+    else
+        return INVALID_OPERATION;
+}
+
+status_t DeviceHalLocal::dump(int fd) {
+    return mDev->dump(mDev, fd);
+}
+
+void DeviceHalLocal::closeOutputStream(struct audio_stream_out *stream_out) {
+    mDev->close_output_stream(mDev, stream_out);
+}
+
+void DeviceHalLocal::closeInputStream(struct audio_stream_in *stream_in) {
+    mDev->close_input_stream(mDev, stream_in);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/DeviceHalLocal.h b/media/libaudiohal/DeviceHalLocal.h
new file mode 100644
index 0000000..865f296
--- /dev/null
+++ b/media/libaudiohal/DeviceHalLocal.h
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICE_HAL_LOCAL_H
+#define ANDROID_HARDWARE_DEVICE_HAL_LOCAL_H
+
+#include <hardware/audio.h>
+#include <media/audiohal/DeviceHalInterface.h>
+
+namespace android {
+
+class DeviceHalLocal : public DeviceHalInterface
+{
+  public:
+    // Sets the value of 'devices' to a bitmask of 1 or more values of audio_devices_t.
+    virtual status_t getSupportedDevices(uint32_t *devices);
+
+    // Check to see if the audio hardware interface has been initialized.
+    virtual status_t initCheck();
+
+    // Set the audio volume of a voice call. Range is between 0.0 and 1.0.
+    virtual status_t setVoiceVolume(float volume);
+
+    // Set the audio volume for all audio activities other than voice call.
+    virtual status_t setMasterVolume(float volume);
+
+    // Get the current master volume value for the HAL.
+    virtual status_t getMasterVolume(float *volume);
+
+    // Called when the audio mode changes.
+    virtual status_t setMode(audio_mode_t mode);
+
+    // Muting control.
+    virtual status_t setMicMute(bool state);
+    virtual status_t getMicMute(bool *state);
+    virtual status_t setMasterMute(bool state);
+    virtual status_t getMasterMute(bool *state);
+
+    // Set global audio parameters.
+    virtual status_t setParameters(const String8& kvPairs);
+
+    // Get global audio parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values);
+
+    // Returns audio input buffer size according to parameters passed.
+    virtual status_t getInputBufferSize(const struct audio_config *config,
+            size_t *size);
+
+    // Creates and opens the audio hardware output stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openOutputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            audio_output_flags_t flags,
+            struct audio_config *config,
+            const char *address,
+            sp<StreamOutHalInterface> *outStream);
+
+    // Creates and opens the audio hardware input stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openInputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            struct audio_config *config,
+            audio_input_flags_t flags,
+            const char *address,
+            audio_source_t source,
+            sp<StreamInHalInterface> *inStream);
+
+    // Returns whether createAudioPatch and releaseAudioPatch operations are supported.
+    virtual status_t supportsAudioPatches(bool *supportsPatches);
+
+    // Creates an audio patch between several source and sink ports.
+    virtual status_t createAudioPatch(
+            unsigned int num_sources,
+            const struct audio_port_config *sources,
+            unsigned int num_sinks,
+            const struct audio_port_config *sinks,
+            audio_patch_handle_t *patch);
+
+    // Releases an audio patch.
+    virtual status_t releaseAudioPatch(audio_patch_handle_t patch);
+
+    // Fills the list of supported attributes for a given audio port.
+    virtual status_t getAudioPort(struct audio_port *port);
+
+    // Set audio port configuration.
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config);
+
+    virtual status_t dump(int fd);
+
+    void closeOutputStream(struct audio_stream_out *stream_out);
+    void closeInputStream(struct audio_stream_in *stream_in);
+
+  private:
+    audio_hw_device_t *mDev;
+
+    friend class DevicesFactoryHalLocal;
+
+    // Can not be constructed directly by clients.
+    explicit DeviceHalLocal(audio_hw_device_t *dev);
+
+    // The destructor automatically closes the device.
+    virtual ~DeviceHalLocal();
+
+    uint32_t version() const { return mDev->common.version; }
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICE_HAL_LOCAL_H
diff --git a/media/libaudiohal/DevicesFactoryHalHidl.cpp b/media/libaudiohal/DevicesFactoryHalHidl.cpp
new file mode 100644
index 0000000..31da263
--- /dev/null
+++ b/media/libaudiohal/DevicesFactoryHalHidl.cpp
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string.h>
+
+#define LOG_TAG "DevicesFactoryHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <android/hardware/audio/2.0/IDevice.h>
+#include <media/audiohal/hidl/HalDeathHandler.h>
+#include <utils/Log.h>
+
+#include "ConversionHelperHidl.h"
+#include "DeviceHalHidl.h"
+#include "DevicesFactoryHalHidl.h"
+
+using ::android::hardware::audio::V2_0::IDevice;
+using ::android::hardware::audio::V2_0::Result;
+using ::android::hardware::Return;
+
+namespace android {
+
+DevicesFactoryHalHidl::DevicesFactoryHalHidl() {
+    mDevicesFactory = IDevicesFactory::getService();
+    if (mDevicesFactory != 0) {
+        // It is assumed that DevicesFactory is owned by AudioFlinger
+        // and thus have the same lifespan.
+        mDevicesFactory->linkToDeath(HalDeathHandler::getInstance(), 0 /*cookie*/);
+    } else {
+        ALOGE("Failed to obtain IDevicesFactory service, terminating process.");
+        exit(1);
+    }
+}
+
+DevicesFactoryHalHidl::~DevicesFactoryHalHidl() {
+}
+
+// static
+status_t DevicesFactoryHalHidl::nameFromHal(const char *name, IDevicesFactory::Device *device) {
+    if (strcmp(name, AUDIO_HARDWARE_MODULE_ID_PRIMARY) == 0) {
+        *device = IDevicesFactory::Device::PRIMARY;
+        return OK;
+    } else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_A2DP) == 0) {
+        *device = IDevicesFactory::Device::A2DP;
+        return OK;
+    } else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_USB) == 0) {
+        *device = IDevicesFactory::Device::USB;
+        return OK;
+    } else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX) == 0) {
+        *device = IDevicesFactory::Device::R_SUBMIX;
+        return OK;
+    } else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_STUB) == 0) {
+        *device = IDevicesFactory::Device::STUB;
+        return OK;
+    }
+    ALOGE("Invalid device name %s", name);
+    return BAD_VALUE;
+}
+
+status_t DevicesFactoryHalHidl::openDevice(const char *name, sp<DeviceHalInterface> *device) {
+    if (mDevicesFactory == 0) return NO_INIT;
+    IDevicesFactory::Device hidlDevice;
+    status_t status = nameFromHal(name, &hidlDevice);
+    if (status != OK) return status;
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mDevicesFactory->openDevice(
+            hidlDevice,
+            [&](Result r, const sp<IDevice>& result) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *device = new DeviceHalHidl(result);
+                }
+            });
+    if (ret.isOk()) {
+        if (retval == Result::OK) return OK;
+        else if (retval == Result::INVALID_ARGUMENTS) return BAD_VALUE;
+        else return NO_INIT;
+    }
+    return FAILED_TRANSACTION;
+}
+
+} // namespace android
diff --git a/media/libaudiohal/DevicesFactoryHalHidl.h b/media/libaudiohal/DevicesFactoryHalHidl.h
new file mode 100644
index 0000000..e2f1ad1
--- /dev/null
+++ b/media/libaudiohal/DevicesFactoryHalHidl.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICES_FACTORY_HAL_HIDL_H
+#define ANDROID_HARDWARE_DEVICES_FACTORY_HAL_HIDL_H
+
+#include <android/hardware/audio/2.0/IDevicesFactory.h>
+#include <media/audiohal/DevicesFactoryHalInterface.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+#include "DeviceHalHidl.h"
+
+using ::android::hardware::audio::V2_0::IDevicesFactory;
+
+namespace android {
+
+class DevicesFactoryHalHidl : public DevicesFactoryHalInterface
+{
+  public:
+    // Opens a device with the specified name. To close the device, it is
+    // necessary to release references to the returned object.
+    virtual status_t openDevice(const char *name, sp<DeviceHalInterface> *device);
+
+  private:
+    friend class DevicesFactoryHalHybrid;
+
+    sp<IDevicesFactory> mDevicesFactory;
+
+    static status_t nameFromHal(const char *name, IDevicesFactory::Device *device);
+
+    // Can not be constructed directly by clients.
+    DevicesFactoryHalHidl();
+
+    virtual ~DevicesFactoryHalHidl();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICES_FACTORY_HAL_HIDL_H
diff --git a/media/libaudiohal/DevicesFactoryHalHybrid.cpp b/media/libaudiohal/DevicesFactoryHalHybrid.cpp
new file mode 100644
index 0000000..454b03b
--- /dev/null
+++ b/media/libaudiohal/DevicesFactoryHalHybrid.cpp
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "DevicesFactoryHalHybrid"
+//#define LOG_NDEBUG 0
+
+#include "DevicesFactoryHalHybrid.h"
+#include "DevicesFactoryHalLocal.h"
+#ifndef USE_LEGACY_LOCAL_AUDIO_HAL
+#include "DevicesFactoryHalHidl.h"
+#endif
+
+namespace android {
+
+// static
+sp<DevicesFactoryHalInterface> DevicesFactoryHalInterface::create() {
+    return new DevicesFactoryHalHybrid();
+}
+
+DevicesFactoryHalHybrid::DevicesFactoryHalHybrid()
+        : mLocalFactory(new DevicesFactoryHalLocal()),
+          mHidlFactory(
+#ifdef USE_LEGACY_LOCAL_AUDIO_HAL
+                  nullptr
+#else
+                  new DevicesFactoryHalHidl()
+#endif
+                       ) {
+}
+
+DevicesFactoryHalHybrid::~DevicesFactoryHalHybrid() {
+}
+
+status_t DevicesFactoryHalHybrid::openDevice(const char *name, sp<DeviceHalInterface> *device) {
+    if (mHidlFactory != 0 && strcmp(AUDIO_HARDWARE_MODULE_ID_A2DP, name) != 0) {
+        return mHidlFactory->openDevice(name, device);
+    }
+    return mLocalFactory->openDevice(name, device);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/DevicesFactoryHalHybrid.h b/media/libaudiohal/DevicesFactoryHalHybrid.h
new file mode 100644
index 0000000..abd57d6
--- /dev/null
+++ b/media/libaudiohal/DevicesFactoryHalHybrid.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICES_FACTORY_HAL_HYBRID_H
+#define ANDROID_HARDWARE_DEVICES_FACTORY_HAL_HYBRID_H
+
+#include <media/audiohal/DevicesFactoryHalInterface.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class DevicesFactoryHalHybrid : public DevicesFactoryHalInterface
+{
+  public:
+    // Opens a device with the specified name. To close the device, it is
+    // necessary to release references to the returned object.
+    virtual status_t openDevice(const char *name, sp<DeviceHalInterface> *device);
+
+  private:
+    friend class DevicesFactoryHalInterface;
+
+    // Can not be constructed directly by clients.
+    DevicesFactoryHalHybrid();
+
+    virtual ~DevicesFactoryHalHybrid();
+
+    sp<DevicesFactoryHalInterface> mLocalFactory;
+    sp<DevicesFactoryHalInterface> mHidlFactory;
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICES_FACTORY_HAL_HYBRID_H
diff --git a/media/libaudiohal/DevicesFactoryHalLocal.cpp b/media/libaudiohal/DevicesFactoryHalLocal.cpp
new file mode 100644
index 0000000..13a9acd
--- /dev/null
+++ b/media/libaudiohal/DevicesFactoryHalLocal.cpp
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "DevicesFactoryHalLocal"
+//#define LOG_NDEBUG 0
+
+#include <string.h>
+
+#include <hardware/audio.h>
+#include <utils/Log.h>
+
+#include "DeviceHalLocal.h"
+#include "DevicesFactoryHalLocal.h"
+
+namespace android {
+
+static status_t load_audio_interface(const char *if_name, audio_hw_device_t **dev)
+{
+    const hw_module_t *mod;
+    int rc;
+
+    rc = hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID, if_name, &mod);
+    if (rc) {
+        ALOGE("%s couldn't load audio hw module %s.%s (%s)", __func__,
+                AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc));
+        goto out;
+    }
+    rc = audio_hw_device_open(mod, dev);
+    if (rc) {
+        ALOGE("%s couldn't open audio hw device in %s.%s (%s)", __func__,
+                AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc));
+        goto out;
+    }
+    if ((*dev)->common.version < AUDIO_DEVICE_API_VERSION_MIN) {
+        ALOGE("%s wrong audio hw device version %04x", __func__, (*dev)->common.version);
+        rc = BAD_VALUE;
+        audio_hw_device_close(*dev);
+        goto out;
+    }
+    return OK;
+
+out:
+    *dev = NULL;
+    return rc;
+}
+
+status_t DevicesFactoryHalLocal::openDevice(const char *name, sp<DeviceHalInterface> *device) {
+    audio_hw_device_t *dev;
+    status_t rc = load_audio_interface(name, &dev);
+    if (rc == OK) {
+        *device = new DeviceHalLocal(dev);
+    }
+    return rc;
+}
+
+} // namespace android
diff --git a/media/libaudiohal/DevicesFactoryHalLocal.h b/media/libaudiohal/DevicesFactoryHalLocal.h
new file mode 100644
index 0000000..b9d18ab
--- /dev/null
+++ b/media/libaudiohal/DevicesFactoryHalLocal.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICES_FACTORY_HAL_LOCAL_H
+#define ANDROID_HARDWARE_DEVICES_FACTORY_HAL_LOCAL_H
+
+#include <media/audiohal/DevicesFactoryHalInterface.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+#include "DeviceHalLocal.h"
+
+namespace android {
+
+class DevicesFactoryHalLocal : public DevicesFactoryHalInterface
+{
+  public:
+    // Opens a device with the specified name. To close the device, it is
+    // necessary to release references to the returned object.
+    virtual status_t openDevice(const char *name, sp<DeviceHalInterface> *device);
+
+  private:
+    friend class DevicesFactoryHalHybrid;
+
+    // Can not be constructed directly by clients.
+    DevicesFactoryHalLocal() {}
+
+    virtual ~DevicesFactoryHalLocal() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICES_FACTORY_HAL_LOCAL_H
diff --git a/media/libaudiohal/EffectBufferHalHidl.cpp b/media/libaudiohal/EffectBufferHalHidl.cpp
new file mode 100644
index 0000000..8b5201b
--- /dev/null
+++ b/media/libaudiohal/EffectBufferHalHidl.cpp
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <atomic>
+
+#define LOG_TAG "EffectBufferHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <android/hidl/allocator/1.0/IAllocator.h>
+#include <hidlmemory/mapping.h>
+#include <utils/Log.h>
+
+#include "ConversionHelperHidl.h"
+#include "EffectBufferHalHidl.h"
+
+using ::android::hardware::Return;
+using ::android::hidl::allocator::V1_0::IAllocator;
+
+namespace android {
+
+// static
+uint64_t EffectBufferHalHidl::makeUniqueId() {
+    static std::atomic<uint64_t> counter{1};
+    return counter++;
+}
+
+// static
+status_t EffectBufferHalInterface::allocate(
+        size_t size, sp<EffectBufferHalInterface>* buffer) {
+    return mirror(nullptr, size, buffer);
+}
+
+// static
+status_t EffectBufferHalInterface::mirror(
+        void* external, size_t size, sp<EffectBufferHalInterface>* buffer) {
+    sp<EffectBufferHalInterface> tempBuffer = new EffectBufferHalHidl(size);
+    status_t result = static_cast<EffectBufferHalHidl*>(tempBuffer.get())->init();
+    if (result == OK) {
+        tempBuffer->setExternalData(external);
+        *buffer = tempBuffer;
+    }
+    return result;
+}
+
+EffectBufferHalHidl::EffectBufferHalHidl(size_t size)
+        : mBufferSize(size), mFrameCountChanged(false),
+          mExternalData(nullptr), mAudioBuffer{0, {nullptr}} {
+    mHidlBuffer.id = makeUniqueId();
+    mHidlBuffer.frameCount = 0;
+}
+
+EffectBufferHalHidl::~EffectBufferHalHidl() {
+}
+
+status_t EffectBufferHalHidl::init() {
+    sp<IAllocator> ashmem = IAllocator::getService("ashmem");
+    if (ashmem == 0) {
+        ALOGE("Failed to retrieve ashmem allocator service");
+        return NO_INIT;
+    }
+    status_t retval = NO_MEMORY;
+    Return<void> result = ashmem->allocate(
+            mBufferSize,
+            [&](bool success, const hidl_memory& memory) {
+                if (success) {
+                    mHidlBuffer.data = memory;
+                    retval = OK;
+                }
+            });
+    if (result.isOk() && retval == OK) {
+        mMemory = hardware::mapMemory(mHidlBuffer.data);
+        if (mMemory != 0) {
+            mMemory->update();
+            mAudioBuffer.raw = static_cast<void*>(mMemory->getPointer());
+            memset(mAudioBuffer.raw, 0, mMemory->getSize());
+            mMemory->commit();
+        } else {
+            ALOGE("Failed to map allocated ashmem");
+            retval = NO_MEMORY;
+        }
+    } else {
+        ALOGE("Failed to allocate %d bytes from ashmem", (int)mBufferSize);
+    }
+    return result.isOk() ? retval : FAILED_TRANSACTION;
+}
+
+audio_buffer_t* EffectBufferHalHidl::audioBuffer() {
+    return &mAudioBuffer;
+}
+
+void* EffectBufferHalHidl::externalData() const {
+    return mExternalData;
+}
+
+void EffectBufferHalHidl::setFrameCount(size_t frameCount) {
+    mHidlBuffer.frameCount = frameCount;
+    mAudioBuffer.frameCount = frameCount;
+    mFrameCountChanged = true;
+}
+
+bool EffectBufferHalHidl::checkFrameCountChange() {
+    bool result = mFrameCountChanged;
+    mFrameCountChanged = false;
+    return result;
+}
+
+void EffectBufferHalHidl::setExternalData(void* external) {
+    mExternalData = external;
+}
+
+void EffectBufferHalHidl::update() {
+    update(mBufferSize);
+}
+
+void EffectBufferHalHidl::commit() {
+    commit(mBufferSize);
+}
+
+void EffectBufferHalHidl::update(size_t size) {
+    if (mExternalData == nullptr) return;
+    mMemory->update();
+    if (size > mBufferSize) size = mBufferSize;
+    memcpy(mAudioBuffer.raw, mExternalData, size);
+    mMemory->commit();
+}
+
+void EffectBufferHalHidl::commit(size_t size) {
+    if (mExternalData == nullptr) return;
+    if (size > mBufferSize) size = mBufferSize;
+    memcpy(mExternalData, mAudioBuffer.raw, size);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectBufferHalHidl.h b/media/libaudiohal/EffectBufferHalHidl.h
new file mode 100644
index 0000000..66a81c2
--- /dev/null
+++ b/media/libaudiohal/EffectBufferHalHidl.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_BUFFER_HAL_HIDL_H
+#define ANDROID_HARDWARE_EFFECT_BUFFER_HAL_HIDL_H
+
+#include <android/hardware/audio/effect/2.0/types.h>
+#include <android/hidl/memory/1.0/IMemory.h>
+#include <hidl/HidlSupport.h>
+#include <media/audiohal/EffectBufferHalInterface.h>
+#include <system/audio_effect.h>
+
+using android::hardware::audio::effect::V2_0::AudioBuffer;
+using android::hardware::hidl_memory;
+using android::hidl::memory::V1_0::IMemory;
+
+namespace android {
+
+class EffectBufferHalHidl : public EffectBufferHalInterface
+{
+  public:
+    virtual audio_buffer_t* audioBuffer();
+    virtual void* externalData() const;
+
+    virtual void setExternalData(void* external);
+    virtual void setFrameCount(size_t frameCount);
+    virtual bool checkFrameCountChange();
+
+    virtual void update();
+    virtual void commit();
+    virtual void update(size_t size);
+    virtual void commit(size_t size);
+
+    const AudioBuffer& hidlBuffer() const { return mHidlBuffer; }
+
+  private:
+    friend class EffectBufferHalInterface;
+
+    static uint64_t makeUniqueId();
+
+    const size_t mBufferSize;
+    bool mFrameCountChanged;
+    void* mExternalData;
+    AudioBuffer mHidlBuffer;
+    sp<IMemory> mMemory;
+    audio_buffer_t mAudioBuffer;
+
+    // Can not be constructed directly by clients.
+    explicit EffectBufferHalHidl(size_t size);
+
+    virtual ~EffectBufferHalHidl();
+
+    status_t init();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_BUFFER_HAL_HIDL_H
diff --git a/media/libaudiohal/EffectBufferHalLocal.cpp b/media/libaudiohal/EffectBufferHalLocal.cpp
new file mode 100644
index 0000000..7951c8e
--- /dev/null
+++ b/media/libaudiohal/EffectBufferHalLocal.cpp
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "EffectBufferHalLocal"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+
+#include "EffectBufferHalLocal.h"
+
+namespace android {
+
+// static
+status_t EffectBufferHalInterface::allocate(
+        size_t size, sp<EffectBufferHalInterface>* buffer) {
+    *buffer = new EffectBufferHalLocal(size);
+    return OK;
+}
+
+// static
+status_t EffectBufferHalInterface::mirror(
+        void* external, size_t size, sp<EffectBufferHalInterface>* buffer) {
+    *buffer = new EffectBufferHalLocal(external, size);
+    return OK;
+}
+
+EffectBufferHalLocal::EffectBufferHalLocal(size_t size)
+        : mOwnBuffer(new uint8_t[size]),
+          mBufferSize(size), mFrameCountChanged(false),
+          mAudioBuffer{0, {mOwnBuffer.get()}} {
+}
+
+EffectBufferHalLocal::EffectBufferHalLocal(void* external, size_t size)
+        : mOwnBuffer(nullptr),
+          mBufferSize(size), mFrameCountChanged(false),
+          mAudioBuffer{0, {external}} {
+}
+
+EffectBufferHalLocal::~EffectBufferHalLocal() {
+}
+
+audio_buffer_t* EffectBufferHalLocal::audioBuffer() {
+    return &mAudioBuffer;
+}
+
+void* EffectBufferHalLocal::externalData() const {
+    return mAudioBuffer.raw;
+}
+
+void EffectBufferHalLocal::setFrameCount(size_t frameCount) {
+    mAudioBuffer.frameCount = frameCount;
+    mFrameCountChanged = true;
+}
+
+void EffectBufferHalLocal::setExternalData(void* external) {
+    ALOGE_IF(mOwnBuffer != nullptr, "Attempt to set external data for allocated buffer");
+    mAudioBuffer.raw = external;
+}
+
+bool EffectBufferHalLocal::checkFrameCountChange() {
+    bool result = mFrameCountChanged;
+    mFrameCountChanged = false;
+    return result;
+}
+
+void EffectBufferHalLocal::update() {
+}
+
+void EffectBufferHalLocal::commit() {
+}
+
+void EffectBufferHalLocal::update(size_t) {
+}
+
+void EffectBufferHalLocal::commit(size_t) {
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectBufferHalLocal.h b/media/libaudiohal/EffectBufferHalLocal.h
new file mode 100644
index 0000000..d2b624b
--- /dev/null
+++ b/media/libaudiohal/EffectBufferHalLocal.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_BUFFER_HAL_LOCAL_H
+#define ANDROID_HARDWARE_EFFECT_BUFFER_HAL_LOCAL_H
+
+#include <memory>
+
+#include <media/audiohal/EffectBufferHalInterface.h>
+#include <system/audio_effect.h>
+
+namespace android {
+
+class EffectBufferHalLocal : public EffectBufferHalInterface
+{
+  public:
+    virtual audio_buffer_t* audioBuffer();
+    virtual void* externalData() const;
+
+    virtual void setExternalData(void* external);
+    virtual void setFrameCount(size_t frameCount);
+    virtual bool checkFrameCountChange();
+
+    virtual void update();
+    virtual void commit();
+    virtual void update(size_t size);
+    virtual void commit(size_t size);
+
+  private:
+    friend class EffectBufferHalInterface;
+
+    std::unique_ptr<uint8_t[]> mOwnBuffer;
+    const size_t mBufferSize;
+    bool mFrameCountChanged;
+    audio_buffer_t mAudioBuffer;
+
+    // Can not be constructed directly by clients.
+    explicit EffectBufferHalLocal(size_t size);
+    EffectBufferHalLocal(void* external, size_t size);
+
+    virtual ~EffectBufferHalLocal();
+
+    status_t init();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_BUFFER_HAL_LOCAL_H
diff --git a/media/libaudiohal/EffectHalHidl.cpp b/media/libaudiohal/EffectHalHidl.cpp
new file mode 100644
index 0000000..b49b975
--- /dev/null
+++ b/media/libaudiohal/EffectHalHidl.cpp
@@ -0,0 +1,326 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "EffectHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <hwbinder/IPCThreadState.h>
+#include <media/EffectsFactoryApi.h>
+#include <utils/Log.h>
+
+#include "ConversionHelperHidl.h"
+#include "EffectBufferHalHidl.h"
+#include "EffectHalHidl.h"
+#include "HidlUtils.h"
+
+using ::android::hardware::audio::effect::V2_0::AudioBuffer;
+using ::android::hardware::audio::effect::V2_0::EffectBufferAccess;
+using ::android::hardware::audio::effect::V2_0::EffectConfigParameters;
+using ::android::hardware::audio::effect::V2_0::MessageQueueFlagBits;
+using ::android::hardware::audio::effect::V2_0::Result;
+using ::android::hardware::audio::common::V2_0::AudioChannelMask;
+using ::android::hardware::audio::common::V2_0::AudioFormat;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::MQDescriptorSync;
+using ::android::hardware::Return;
+
+namespace android {
+
+EffectHalHidl::EffectHalHidl(const sp<IEffect>& effect, uint64_t effectId)
+        : mEffect(effect), mEffectId(effectId), mBuffersChanged(true) {
+}
+
+EffectHalHidl::~EffectHalHidl() {
+    if (mEffect != 0) {
+        close();
+        mEffect.clear();
+        hardware::IPCThreadState::self()->flushCommands();
+    }
+}
+
+// static
+void EffectHalHidl::effectDescriptorToHal(
+        const EffectDescriptor& descriptor, effect_descriptor_t* halDescriptor) {
+    HidlUtils::uuidToHal(descriptor.type, &halDescriptor->type);
+    HidlUtils::uuidToHal(descriptor.uuid, &halDescriptor->uuid);
+    halDescriptor->flags = static_cast<uint32_t>(descriptor.flags);
+    halDescriptor->cpuLoad = descriptor.cpuLoad;
+    halDescriptor->memoryUsage = descriptor.memoryUsage;
+    memcpy(halDescriptor->name, descriptor.name.data(), descriptor.name.size());
+    memcpy(halDescriptor->implementor,
+            descriptor.implementor.data(), descriptor.implementor.size());
+}
+
+// TODO(mnaganov): These buffer conversion functions should be shared with Effect wrapper
+// via HidlUtils. Move them there when hardware/interfaces will get un-frozen again.
+
+// static
+void EffectHalHidl::effectBufferConfigFromHal(
+        const buffer_config_t& halConfig, EffectBufferConfig* config) {
+    config->samplingRateHz = halConfig.samplingRate;
+    config->channels = AudioChannelMask(halConfig.channels);
+    config->format = AudioFormat(halConfig.format);
+    config->accessMode = EffectBufferAccess(halConfig.accessMode);
+    config->mask = EffectConfigParameters(halConfig.mask);
+}
+
+// static
+void EffectHalHidl::effectBufferConfigToHal(
+        const EffectBufferConfig& config, buffer_config_t* halConfig) {
+    halConfig->buffer.frameCount = 0;
+    halConfig->buffer.raw = NULL;
+    halConfig->samplingRate = config.samplingRateHz;
+    halConfig->channels = static_cast<uint32_t>(config.channels);
+    halConfig->bufferProvider.cookie = NULL;
+    halConfig->bufferProvider.getBuffer = NULL;
+    halConfig->bufferProvider.releaseBuffer = NULL;
+    halConfig->format = static_cast<uint8_t>(config.format);
+    halConfig->accessMode = static_cast<uint8_t>(config.accessMode);
+    halConfig->mask = static_cast<uint8_t>(config.mask);
+}
+
+// static
+void EffectHalHidl::effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config) {
+    effectBufferConfigFromHal(halConfig.inputCfg, &config->inputCfg);
+    effectBufferConfigFromHal(halConfig.outputCfg, &config->outputCfg);
+}
+
+// static
+void EffectHalHidl::effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig) {
+    effectBufferConfigToHal(config.inputCfg, &halConfig->inputCfg);
+    effectBufferConfigToHal(config.outputCfg, &halConfig->outputCfg);
+}
+
+// static
+status_t EffectHalHidl::analyzeResult(const Result& result) {
+    switch (result) {
+        case Result::OK: return OK;
+        case Result::INVALID_ARGUMENTS: return BAD_VALUE;
+        case Result::INVALID_STATE: return NOT_ENOUGH_DATA;
+        case Result::NOT_INITIALIZED: return NO_INIT;
+        case Result::NOT_SUPPORTED: return INVALID_OPERATION;
+        case Result::RESULT_TOO_BIG: return NO_MEMORY;
+        default: return NO_INIT;
+    }
+}
+
+status_t EffectHalHidl::setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    if (mInBuffer == 0 || buffer->audioBuffer() != mInBuffer->audioBuffer()) {
+        mBuffersChanged = true;
+    }
+    mInBuffer = buffer;
+    return OK;
+}
+
+status_t EffectHalHidl::setOutBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    if (mOutBuffer == 0 || buffer->audioBuffer() != mOutBuffer->audioBuffer()) {
+        mBuffersChanged = true;
+    }
+    mOutBuffer = buffer;
+    return OK;
+}
+
+status_t EffectHalHidl::process() {
+    return processImpl(static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS));
+}
+
+status_t EffectHalHidl::processReverse() {
+    return processImpl(static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS_REVERSE));
+}
+
+status_t EffectHalHidl::prepareForProcessing() {
+    std::unique_ptr<StatusMQ> tempStatusMQ;
+    Result retval;
+    Return<void> ret = mEffect->prepareForProcessing(
+            [&](Result r, const MQDescriptorSync<Result>& statusMQ) {
+                retval = r;
+                if (retval == Result::OK) {
+                    tempStatusMQ.reset(new StatusMQ(statusMQ));
+                    if (tempStatusMQ->isValid() && tempStatusMQ->getEventFlagWord()) {
+                        EventFlag::createEventFlag(tempStatusMQ->getEventFlagWord(), &mEfGroup);
+                    }
+                }
+            });
+    if (!ret.isOk() || retval != Result::OK) {
+        return ret.isOk() ? analyzeResult(retval) : FAILED_TRANSACTION;
+    }
+    if (!tempStatusMQ || !tempStatusMQ->isValid() || !mEfGroup) {
+        ALOGE_IF(!tempStatusMQ, "Failed to obtain status message queue for effects");
+        ALOGE_IF(tempStatusMQ && !tempStatusMQ->isValid(),
+                "Status message queue for effects is invalid");
+        ALOGE_IF(!mEfGroup, "Event flag creation for effects failed");
+        return NO_INIT;
+    }
+    mStatusMQ = std::move(tempStatusMQ);
+    return OK;
+}
+
+bool EffectHalHidl::needToResetBuffers() {
+    if (mBuffersChanged) return true;
+    bool inBufferFrameCountUpdated = mInBuffer->checkFrameCountChange();
+    bool outBufferFrameCountUpdated = mOutBuffer->checkFrameCountChange();
+    return inBufferFrameCountUpdated || outBufferFrameCountUpdated;
+}
+
+status_t EffectHalHidl::processImpl(uint32_t mqFlag) {
+    if (mEffect == 0 || mInBuffer == 0 || mOutBuffer == 0) return NO_INIT;
+    status_t status;
+    if (!mStatusMQ && (status = prepareForProcessing()) != OK) {
+        return status;
+    }
+    if (needToResetBuffers() && (status = setProcessBuffers()) != OK) {
+        return status;
+    }
+    // The data is already in the buffers, just need to flush it and wake up the server side.
+    std::atomic_thread_fence(std::memory_order_release);
+    mEfGroup->wake(mqFlag);
+    uint32_t efState = 0;
+retry:
+    status_t ret = mEfGroup->wait(
+            static_cast<uint32_t>(MessageQueueFlagBits::DONE_PROCESSING), &efState);
+    if (efState & static_cast<uint32_t>(MessageQueueFlagBits::DONE_PROCESSING)) {
+        Result retval = Result::NOT_INITIALIZED;
+        mStatusMQ->read(&retval);
+        if (retval == Result::OK || retval == Result::INVALID_STATE) {
+            // Sync back the changed contents of the buffer.
+            std::atomic_thread_fence(std::memory_order_acquire);
+        }
+        return analyzeResult(retval);
+    }
+    if (ret == -EAGAIN || ret == -EINTR) {
+        // Spurious wakeup. This normally retries no more than once.
+        goto retry;
+    }
+    return ret;
+}
+
+status_t EffectHalHidl::setProcessBuffers() {
+    Return<Result> ret = mEffect->setProcessBuffers(
+            static_cast<EffectBufferHalHidl*>(mInBuffer.get())->hidlBuffer(),
+            static_cast<EffectBufferHalHidl*>(mOutBuffer.get())->hidlBuffer());
+    if (ret.isOk() && ret == Result::OK) {
+        mBuffersChanged = false;
+        return OK;
+    }
+    return ret.isOk() ? analyzeResult(ret) : FAILED_TRANSACTION;
+}
+
+status_t EffectHalHidl::command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+        uint32_t *replySize, void *pReplyData) {
+    if (mEffect == 0) return NO_INIT;
+
+    // Special cases.
+    if (cmdCode == EFFECT_CMD_SET_CONFIG || cmdCode == EFFECT_CMD_SET_CONFIG_REVERSE) {
+        return setConfigImpl(cmdCode, cmdSize, pCmdData, replySize, pReplyData);
+    } else if (cmdCode == EFFECT_CMD_GET_CONFIG || cmdCode == EFFECT_CMD_GET_CONFIG_REVERSE) {
+        return getConfigImpl(cmdCode, replySize, pReplyData);
+    }
+
+    // Common case.
+    hidl_vec<uint8_t> hidlData;
+    if (pCmdData != nullptr && cmdSize > 0) {
+        hidlData.setToExternal(reinterpret_cast<uint8_t*>(pCmdData), cmdSize);
+    }
+    status_t status;
+    uint32_t replySizeStub = 0;
+    if (replySize == nullptr || pReplyData == nullptr) replySize = &replySizeStub;
+    Return<void> ret = mEffect->command(cmdCode, hidlData, *replySize,
+            [&](int32_t s, const hidl_vec<uint8_t>& result) {
+                status = s;
+                if (status == 0) {
+                    if (*replySize > result.size()) *replySize = result.size();
+                    if (pReplyData != nullptr && *replySize > 0) {
+                        memcpy(pReplyData, &result[0], *replySize);
+                    }
+                }
+            });
+    return ret.isOk() ? status : FAILED_TRANSACTION;
+}
+
+status_t EffectHalHidl::getDescriptor(effect_descriptor_t *pDescriptor) {
+    if (mEffect == 0) return NO_INIT;
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mEffect->getDescriptor(
+            [&](Result r, const EffectDescriptor& result) {
+                retval = r;
+                if (retval == Result::OK) {
+                    effectDescriptorToHal(result, pDescriptor);
+                }
+            });
+    return ret.isOk() ? analyzeResult(retval) : FAILED_TRANSACTION;
+}
+
+status_t EffectHalHidl::close() {
+    if (mEffect == 0) return NO_INIT;
+    Return<Result> ret = mEffect->close();
+    return ret.isOk() ? analyzeResult(ret) : FAILED_TRANSACTION;
+}
+
+status_t EffectHalHidl::getConfigImpl(
+        uint32_t cmdCode, uint32_t *replySize, void *pReplyData) {
+    if (replySize == NULL || *replySize != sizeof(effect_config_t) || pReplyData == NULL) {
+        return BAD_VALUE;
+    }
+    status_t result = FAILED_TRANSACTION;
+    Return<void> ret;
+    if (cmdCode == EFFECT_CMD_GET_CONFIG) {
+        ret = mEffect->getConfig([&] (Result r, const EffectConfig &hidlConfig) {
+            result = analyzeResult(r);
+            if (r == Result::OK) {
+                effectConfigToHal(hidlConfig, static_cast<effect_config_t*>(pReplyData));
+            }
+        });
+    } else {
+        ret = mEffect->getConfigReverse([&] (Result r, const EffectConfig &hidlConfig) {
+            result = analyzeResult(r);
+            if (r == Result::OK) {
+                effectConfigToHal(hidlConfig, static_cast<effect_config_t*>(pReplyData));
+            }
+        });
+    }
+    if (!ret.isOk()) {
+        result = FAILED_TRANSACTION;
+    }
+    return result;
+}
+
+status_t EffectHalHidl::setConfigImpl(
+        uint32_t cmdCode, uint32_t cmdSize, void *pCmdData, uint32_t *replySize, void *pReplyData) {
+    if (pCmdData == NULL || cmdSize != sizeof(effect_config_t) ||
+            replySize == NULL || *replySize != sizeof(int32_t) || pReplyData == NULL) {
+        return BAD_VALUE;
+    }
+    const effect_config_t *halConfig = static_cast<effect_config_t*>(pCmdData);
+    if (halConfig->inputCfg.bufferProvider.getBuffer != NULL ||
+            halConfig->inputCfg.bufferProvider.releaseBuffer != NULL ||
+            halConfig->outputCfg.bufferProvider.getBuffer != NULL ||
+            halConfig->outputCfg.bufferProvider.releaseBuffer != NULL) {
+        ALOGE("Buffer provider callbacks are not supported");
+    }
+    EffectConfig hidlConfig;
+    effectConfigFromHal(*halConfig, &hidlConfig);
+    Return<Result> ret = cmdCode == EFFECT_CMD_SET_CONFIG ?
+            mEffect->setConfig(hidlConfig, nullptr, nullptr) :
+            mEffect->setConfigReverse(hidlConfig, nullptr, nullptr);
+    status_t result = FAILED_TRANSACTION;
+    if (ret.isOk()) {
+        result = analyzeResult(ret);
+        *static_cast<int32_t*>(pReplyData) = result;
+    }
+    return result;
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectHalHidl.h b/media/libaudiohal/EffectHalHidl.h
new file mode 100644
index 0000000..6ffdaf1
--- /dev/null
+++ b/media/libaudiohal/EffectHalHidl.h
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_HAL_HIDL_H
+#define ANDROID_HARDWARE_EFFECT_HAL_HIDL_H
+
+#include <android/hardware/audio/effect/2.0/IEffect.h>
+#include <media/audiohal/EffectHalInterface.h>
+#include <fmq/EventFlag.h>
+#include <fmq/MessageQueue.h>
+#include <system/audio_effect.h>
+
+using ::android::hardware::audio::effect::V2_0::EffectBufferConfig;
+using ::android::hardware::audio::effect::V2_0::EffectConfig;
+using ::android::hardware::audio::effect::V2_0::EffectDescriptor;
+using ::android::hardware::audio::effect::V2_0::IEffect;
+using ::android::hardware::EventFlag;
+using ::android::hardware::MessageQueue;
+
+namespace android {
+
+class EffectHalHidl : public EffectHalInterface
+{
+  public:
+    // Set the input buffer.
+    virtual status_t setInBuffer(const sp<EffectBufferHalInterface>& buffer);
+
+    // Set the output buffer.
+    virtual status_t setOutBuffer(const sp<EffectBufferHalInterface>& buffer);
+
+    // Effect process function.
+    virtual status_t process();
+
+    // Process reverse stream function. This function is used to pass
+    // a reference stream to the effect engine.
+    virtual status_t processReverse();
+
+    // Send a command and receive a response to/from effect engine.
+    virtual status_t command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+            uint32_t *replySize, void *pReplyData);
+
+    // Returns the effect descriptor.
+    virtual status_t getDescriptor(effect_descriptor_t *pDescriptor);
+
+    // Free resources on the remote side.
+    virtual status_t close();
+
+    // Whether it's a local implementation.
+    virtual bool isLocal() const { return false; }
+
+    uint64_t effectId() const { return mEffectId; }
+
+    static void effectDescriptorToHal(
+            const EffectDescriptor& descriptor, effect_descriptor_t* halDescriptor);
+
+  private:
+    friend class EffectsFactoryHalHidl;
+    typedef MessageQueue<
+        hardware::audio::effect::V2_0::Result, hardware::kSynchronizedReadWrite> StatusMQ;
+
+    sp<IEffect> mEffect;
+    const uint64_t mEffectId;
+    sp<EffectBufferHalInterface> mInBuffer;
+    sp<EffectBufferHalInterface> mOutBuffer;
+    bool mBuffersChanged;
+    std::unique_ptr<StatusMQ> mStatusMQ;
+    EventFlag* mEfGroup;
+
+    static status_t analyzeResult(const hardware::audio::effect::V2_0::Result& result);
+    static void effectBufferConfigFromHal(
+            const buffer_config_t& halConfig, EffectBufferConfig* config);
+    static void effectBufferConfigToHal(
+            const EffectBufferConfig& config, buffer_config_t* halConfig);
+    static void effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config);
+    static void effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig);
+
+    // Can not be constructed directly by clients.
+    EffectHalHidl(const sp<IEffect>& effect, uint64_t effectId);
+
+    // The destructor automatically releases the effect.
+    virtual ~EffectHalHidl();
+
+    status_t getConfigImpl(uint32_t cmdCode, uint32_t *replySize, void *pReplyData);
+    status_t prepareForProcessing();
+    bool needToResetBuffers();
+    status_t processImpl(uint32_t mqFlag);
+    status_t setConfigImpl(
+            uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+            uint32_t *replySize, void *pReplyData);
+    status_t setProcessBuffers();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_HAL_HIDL_H
diff --git a/media/libaudiohal/EffectHalLocal.cpp b/media/libaudiohal/EffectHalLocal.cpp
new file mode 100644
index 0000000..dd465c3
--- /dev/null
+++ b/media/libaudiohal/EffectHalLocal.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "EffectHalLocal"
+//#define LOG_NDEBUG 0
+
+#include <media/EffectsFactoryApi.h>
+#include <utils/Log.h>
+
+#include "EffectHalLocal.h"
+
+namespace android {
+
+EffectHalLocal::EffectHalLocal(effect_handle_t handle)
+        : mHandle(handle) {
+}
+
+EffectHalLocal::~EffectHalLocal() {
+    int status = EffectRelease(mHandle);
+    ALOGW_IF(status, "Error releasing effect %p: %s", mHandle, strerror(-status));
+    mHandle = 0;
+}
+
+status_t EffectHalLocal::setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    mInBuffer = buffer;
+    return OK;
+}
+
+status_t EffectHalLocal::setOutBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    mOutBuffer = buffer;
+    return OK;
+}
+
+status_t EffectHalLocal::process() {
+    if (mInBuffer == nullptr || mOutBuffer == nullptr) {
+        ALOGE_IF(mInBuffer == nullptr, "Input buffer not set");
+        ALOGE_IF(mOutBuffer == nullptr, "Output buffer not set");
+        return NO_INIT;
+    }
+    return (*mHandle)->process(mHandle, mInBuffer->audioBuffer(), mOutBuffer->audioBuffer());
+}
+
+status_t EffectHalLocal::processReverse() {
+    if ((*mHandle)->process_reverse != NULL) {
+        if (mInBuffer == nullptr || mOutBuffer == nullptr) {
+            ALOGE_IF(mInBuffer == nullptr, "Input buffer not set");
+            ALOGE_IF(mOutBuffer == nullptr, "Output buffer not set");
+            return NO_INIT;
+        }
+        return (*mHandle)->process_reverse(
+                mHandle, mInBuffer->audioBuffer(), mOutBuffer->audioBuffer());
+    } else {
+        return INVALID_OPERATION;
+    }
+}
+
+status_t EffectHalLocal::command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+        uint32_t *replySize, void *pReplyData) {
+    return (*mHandle)->command(mHandle, cmdCode, cmdSize, pCmdData, replySize, pReplyData);
+}
+
+status_t EffectHalLocal::getDescriptor(effect_descriptor_t *pDescriptor) {
+    return (*mHandle)->get_descriptor(mHandle, pDescriptor);
+}
+
+status_t EffectHalLocal::close() {
+    return OK;
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectHalLocal.h b/media/libaudiohal/EffectHalLocal.h
new file mode 100644
index 0000000..693fb50
--- /dev/null
+++ b/media/libaudiohal/EffectHalLocal.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_HAL_LOCAL_H
+#define ANDROID_HARDWARE_EFFECT_HAL_LOCAL_H
+
+#include <hardware/audio_effect.h>
+#include <media/audiohal/EffectHalInterface.h>
+
+namespace android {
+
+class EffectHalLocal : public EffectHalInterface
+{
+  public:
+    // Set the input buffer.
+    virtual status_t setInBuffer(const sp<EffectBufferHalInterface>& buffer);
+
+    // Set the output buffer.
+    virtual status_t setOutBuffer(const sp<EffectBufferHalInterface>& buffer);
+
+    // Effect process function.
+    virtual status_t process();
+
+    // Process reverse stream function. This function is used to pass
+    // a reference stream to the effect engine.
+    virtual status_t processReverse();
+
+    // Send a command and receive a response to/from effect engine.
+    virtual status_t command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+            uint32_t *replySize, void *pReplyData);
+
+    // Returns the effect descriptor.
+    virtual status_t getDescriptor(effect_descriptor_t *pDescriptor);
+
+    // Free resources on the remote side.
+    virtual status_t close();
+
+    // Whether it's a local implementation.
+    virtual bool isLocal() const { return true; }
+
+    effect_handle_t handle() const { return mHandle; }
+
+  private:
+    effect_handle_t mHandle;
+    sp<EffectBufferHalInterface> mInBuffer;
+    sp<EffectBufferHalInterface> mOutBuffer;
+
+    friend class EffectsFactoryHalLocal;
+
+    // Can not be constructed directly by clients.
+    explicit EffectHalLocal(effect_handle_t handle);
+
+    // The destructor automatically releases the effect.
+    virtual ~EffectHalLocal();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_HAL_LOCAL_H
diff --git a/media/libaudiohal/EffectsFactoryHalHidl.cpp b/media/libaudiohal/EffectsFactoryHalHidl.cpp
new file mode 100644
index 0000000..a8081b7
--- /dev/null
+++ b/media/libaudiohal/EffectsFactoryHalHidl.cpp
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "EffectsFactoryHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <cutils/native_handle.h>
+
+#include "ConversionHelperHidl.h"
+#include "EffectHalHidl.h"
+#include "EffectsFactoryHalHidl.h"
+#include "HidlUtils.h"
+
+using ::android::hardware::audio::common::V2_0::Uuid;
+using ::android::hardware::audio::effect::V2_0::IEffect;
+using ::android::hardware::audio::effect::V2_0::Result;
+using ::android::hardware::Return;
+
+namespace android {
+
+// static
+sp<EffectsFactoryHalInterface> EffectsFactoryHalInterface::create() {
+    return new EffectsFactoryHalHidl();
+}
+
+// static
+bool EffectsFactoryHalInterface::isNullUuid(const effect_uuid_t *pEffectUuid) {
+    return memcmp(pEffectUuid, EFFECT_UUID_NULL, sizeof(effect_uuid_t)) == 0;
+}
+
+EffectsFactoryHalHidl::EffectsFactoryHalHidl() : ConversionHelperHidl("EffectsFactory") {
+    mEffectsFactory = IEffectsFactory::getService();
+    if (mEffectsFactory == 0) {
+        ALOGE("Failed to obtain IEffectsFactory service, terminating process.");
+        exit(1);
+    }
+}
+
+EffectsFactoryHalHidl::~EffectsFactoryHalHidl() {
+}
+
+status_t EffectsFactoryHalHidl::queryAllDescriptors() {
+    if (mEffectsFactory == 0) return NO_INIT;
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mEffectsFactory->getAllDescriptors(
+            [&](Result r, const hidl_vec<EffectDescriptor>& result) {
+                retval = r;
+                if (retval == Result::OK) {
+                    mLastDescriptors = result;
+                }
+            });
+    if (ret.isOk()) {
+        return retval == Result::OK ? OK : NO_INIT;
+    }
+    mLastDescriptors.resize(0);
+    return processReturn(__FUNCTION__, ret);
+}
+
+status_t EffectsFactoryHalHidl::queryNumberEffects(uint32_t *pNumEffects) {
+    status_t queryResult = queryAllDescriptors();
+    if (queryResult == OK) {
+        *pNumEffects = mLastDescriptors.size();
+    }
+    return queryResult;
+}
+
+status_t EffectsFactoryHalHidl::getDescriptor(
+        uint32_t index, effect_descriptor_t *pDescriptor) {
+    // TODO: We need somehow to track the changes on the server side
+    // or figure out how to convert everybody to query all the descriptors at once.
+    // TODO: check for nullptr
+    if (mLastDescriptors.size() == 0) {
+        status_t queryResult = queryAllDescriptors();
+        if (queryResult != OK) return queryResult;
+    }
+    if (index >= mLastDescriptors.size()) return NAME_NOT_FOUND;
+    EffectHalHidl::effectDescriptorToHal(mLastDescriptors[index], pDescriptor);
+    return OK;
+}
+
+status_t EffectsFactoryHalHidl::getDescriptor(
+        const effect_uuid_t *pEffectUuid, effect_descriptor_t *pDescriptor) {
+    // TODO: check for nullptr
+    if (mEffectsFactory == 0) return NO_INIT;
+    Uuid hidlUuid;
+    HidlUtils::uuidFromHal(*pEffectUuid, &hidlUuid);
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mEffectsFactory->getDescriptor(hidlUuid,
+            [&](Result r, const EffectDescriptor& result) {
+                retval = r;
+                if (retval == Result::OK) {
+                    EffectHalHidl::effectDescriptorToHal(result, pDescriptor);
+                }
+            });
+    if (ret.isOk()) {
+        if (retval == Result::OK) return OK;
+        else if (retval == Result::INVALID_ARGUMENTS) return NAME_NOT_FOUND;
+        else return NO_INIT;
+    }
+    return processReturn(__FUNCTION__, ret);
+}
+
+status_t EffectsFactoryHalHidl::createEffect(
+        const effect_uuid_t *pEffectUuid, int32_t sessionId, int32_t ioId,
+        sp<EffectHalInterface> *effect) {
+    if (mEffectsFactory == 0) return NO_INIT;
+    Uuid hidlUuid;
+    HidlUtils::uuidFromHal(*pEffectUuid, &hidlUuid);
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mEffectsFactory->createEffect(
+            hidlUuid, sessionId, ioId,
+            [&](Result r, const sp<IEffect>& result, uint64_t effectId) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *effect = new EffectHalHidl(result, effectId);
+                }
+            });
+    if (ret.isOk()) {
+        if (retval == Result::OK) return OK;
+        else if (retval == Result::INVALID_ARGUMENTS) return NAME_NOT_FOUND;
+        else return NO_INIT;
+    }
+    return processReturn(__FUNCTION__, ret);
+}
+
+status_t EffectsFactoryHalHidl::dumpEffects(int fd) {
+    if (mEffectsFactory == 0) return NO_INIT;
+    native_handle_t* hidlHandle = native_handle_create(1, 0);
+    hidlHandle->data[0] = fd;
+    Return<void> ret = mEffectsFactory->debugDump(hidlHandle);
+    native_handle_delete(hidlHandle);
+    return processReturn(__FUNCTION__, ret);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectsFactoryHalHidl.h b/media/libaudiohal/EffectsFactoryHalHidl.h
new file mode 100644
index 0000000..e89f042
--- /dev/null
+++ b/media/libaudiohal/EffectsFactoryHalHidl.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H
+#define ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H
+
+#include <android/hardware/audio/effect/2.0/IEffectsFactory.h>
+#include <android/hardware/audio/effect/2.0/types.h>
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+
+namespace android {
+
+using ::android::hardware::audio::effect::V2_0::EffectDescriptor;
+using ::android::hardware::audio::effect::V2_0::IEffectsFactory;
+using ::android::hardware::hidl_vec;
+
+class EffectsFactoryHalHidl : public EffectsFactoryHalInterface, public ConversionHelperHidl
+{
+  public:
+    // Returns the number of different effects in all loaded libraries.
+    virtual status_t queryNumberEffects(uint32_t *pNumEffects);
+
+    // Returns a descriptor of the next available effect.
+    virtual status_t getDescriptor(uint32_t index,
+            effect_descriptor_t *pDescriptor);
+
+    virtual status_t getDescriptor(const effect_uuid_t *pEffectUuid,
+            effect_descriptor_t *pDescriptor);
+
+    // Creates an effect engine of the specified type.
+    // To release the effect engine, it is necessary to release references
+    // to the returned effect object.
+    virtual status_t createEffect(const effect_uuid_t *pEffectUuid,
+            int32_t sessionId, int32_t ioId,
+            sp<EffectHalInterface> *effect);
+
+    virtual status_t dumpEffects(int fd);
+
+  private:
+    friend class EffectsFactoryHalInterface;
+
+    sp<IEffectsFactory> mEffectsFactory;
+    hidl_vec<EffectDescriptor> mLastDescriptors;
+
+    // Can not be constructed directly by clients.
+    EffectsFactoryHalHidl();
+    virtual ~EffectsFactoryHalHidl();
+
+    status_t queryAllDescriptors();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H
diff --git a/media/libaudiohal/EffectsFactoryHalLocal.cpp b/media/libaudiohal/EffectsFactoryHalLocal.cpp
new file mode 100644
index 0000000..bbdef5d
--- /dev/null
+++ b/media/libaudiohal/EffectsFactoryHalLocal.cpp
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/EffectsFactoryApi.h>
+
+#include "EffectHalLocal.h"
+#include "EffectsFactoryHalLocal.h"
+
+namespace android {
+
+// static
+sp<EffectsFactoryHalInterface> EffectsFactoryHalInterface::create() {
+    return new EffectsFactoryHalLocal();
+}
+
+// static
+bool EffectsFactoryHalInterface::isNullUuid(const effect_uuid_t *pEffectUuid) {
+    return EffectIsNullUuid(pEffectUuid);
+}
+
+status_t EffectsFactoryHalLocal::queryNumberEffects(uint32_t *pNumEffects) {
+    return EffectQueryNumberEffects(pNumEffects);
+}
+
+status_t EffectsFactoryHalLocal::getDescriptor(
+        uint32_t index, effect_descriptor_t *pDescriptor) {
+    return EffectQueryEffect(index, pDescriptor);
+}
+
+status_t EffectsFactoryHalLocal::getDescriptor(
+        const effect_uuid_t *pEffectUuid, effect_descriptor_t *pDescriptor) {
+    return EffectGetDescriptor(pEffectUuid, pDescriptor);
+}
+
+status_t EffectsFactoryHalLocal::createEffect(
+        const effect_uuid_t *pEffectUuid, int32_t sessionId, int32_t ioId,
+        sp<EffectHalInterface> *effect) {
+    effect_handle_t handle;
+    int result = EffectCreate(pEffectUuid, sessionId, ioId, &handle);
+    if (result == 0) {
+        *effect = new EffectHalLocal(handle);
+    }
+    return result;
+}
+
+status_t EffectsFactoryHalLocal::dumpEffects(int fd) {
+    return EffectDumpEffects(fd);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectsFactoryHalLocal.h b/media/libaudiohal/EffectsFactoryHalLocal.h
new file mode 100644
index 0000000..d5b81be
--- /dev/null
+++ b/media/libaudiohal/EffectsFactoryHalLocal.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_LOCAL_H
+#define ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_LOCAL_H
+
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+
+namespace android {
+
+class EffectsFactoryHalLocal : public EffectsFactoryHalInterface
+{
+  public:
+    // Returns the number of different effects in all loaded libraries.
+    virtual status_t queryNumberEffects(uint32_t *pNumEffects);
+
+    // Returns a descriptor of the next available effect.
+    virtual status_t getDescriptor(uint32_t index,
+            effect_descriptor_t *pDescriptor);
+
+    virtual status_t getDescriptor(const effect_uuid_t *pEffectUuid,
+            effect_descriptor_t *pDescriptor);
+
+    // Creates an effect engine of the specified type.
+    // To release the effect engine, it is necessary to release references
+    // to the returned effect object.
+    virtual status_t createEffect(const effect_uuid_t *pEffectUuid,
+            int32_t sessionId, int32_t ioId,
+            sp<EffectHalInterface> *effect);
+
+    virtual status_t dumpEffects(int fd);
+
+  private:
+    friend class EffectsFactoryHalInterface;
+
+    // Can not be constructed directly by clients.
+    EffectsFactoryHalLocal() {}
+
+    virtual ~EffectsFactoryHalLocal() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_LOCAL_H
diff --git a/media/libaudiohal/HalDeathHandlerHidl.cpp b/media/libaudiohal/HalDeathHandlerHidl.cpp
new file mode 100644
index 0000000..a742671
--- /dev/null
+++ b/media/libaudiohal/HalDeathHandlerHidl.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "HalDeathHandler"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+
+#include <media/audiohal/hidl/HalDeathHandler.h>
+
+namespace android {
+
+ANDROID_SINGLETON_STATIC_INSTANCE(HalDeathHandler);
+
+// static
+sp<HalDeathHandler> HalDeathHandler::getInstance() {
+    return &Singleton<HalDeathHandler>::getInstance();
+}
+
+HalDeathHandler::HalDeathHandler() : mSelf(this) {
+}
+
+HalDeathHandler::~HalDeathHandler() {
+}
+
+void HalDeathHandler::registerAtExitHandler(void* cookie, AtExitHandler handler) {
+    std::lock_guard<std::mutex> guard(mHandlersLock);
+    mHandlers.insert({cookie, handler});
+}
+
+void HalDeathHandler::unregisterAtExitHandler(void* cookie) {
+    std::lock_guard<std::mutex> guard(mHandlersLock);
+    mHandlers.erase(cookie);
+}
+
+void HalDeathHandler::serviceDied(uint64_t /*cookie*/, const wp<IBase>& /*who*/) {
+    // No matter which of the service objects has died,
+    // we need to run all the registered handlers and crash our process.
+    std::lock_guard<std::mutex> guard(mHandlersLock);
+    for (const auto& handler : mHandlers) {
+        handler.second();
+    }
+    LOG_ALWAYS_FATAL("HAL server crashed, need to restart");
+}
+
+} // namespace android
diff --git a/media/libaudiohal/StreamHalHidl.cpp b/media/libaudiohal/StreamHalHidl.cpp
new file mode 100644
index 0000000..42785d5
--- /dev/null
+++ b/media/libaudiohal/StreamHalHidl.cpp
@@ -0,0 +1,711 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "StreamHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <android/hardware/audio/2.0/IStreamOutCallback.h>
+#include <hwbinder/IPCThreadState.h>
+#include <mediautils/SchedulingPolicyService.h>
+#include <utils/Log.h>
+
+#include "DeviceHalHidl.h"
+#include "EffectHalHidl.h"
+#include "StreamHalHidl.h"
+
+using ::android::hardware::audio::common::V2_0::AudioChannelMask;
+using ::android::hardware::audio::common::V2_0::AudioFormat;
+using ::android::hardware::audio::common::V2_0::ThreadInfo;
+using ::android::hardware::audio::V2_0::AudioDrain;
+using ::android::hardware::audio::V2_0::IStreamOutCallback;
+using ::android::hardware::audio::V2_0::MessageQueueFlagBits;
+using ::android::hardware::audio::V2_0::MmapBufferInfo;
+using ::android::hardware::audio::V2_0::MmapPosition;
+using ::android::hardware::audio::V2_0::ParameterValue;
+using ::android::hardware::audio::V2_0::Result;
+using ::android::hardware::audio::V2_0::TimeSpec;
+using ::android::hardware::MQDescriptorSync;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ReadCommand = ::android::hardware::audio::V2_0::IStreamIn::ReadCommand;
+
+namespace android {
+
+StreamHalHidl::StreamHalHidl(IStream *stream)
+        : ConversionHelperHidl("Stream"),
+          mStream(stream),
+          mHalThreadPriority(HAL_THREAD_PRIORITY_DEFAULT) {
+}
+
+StreamHalHidl::~StreamHalHidl() {
+    mStream = nullptr;
+}
+
+status_t StreamHalHidl::getSampleRate(uint32_t *rate) {
+    if (!mStream) return NO_INIT;
+    return processReturn("getSampleRate", mStream->getSampleRate(), rate);
+}
+
+status_t StreamHalHidl::getBufferSize(size_t *size) {
+    if (!mStream) return NO_INIT;
+    return processReturn("getBufferSize", mStream->getBufferSize(), size);
+}
+
+status_t StreamHalHidl::getChannelMask(audio_channel_mask_t *mask) {
+    if (!mStream) return NO_INIT;
+    return processReturn("getChannelMask", mStream->getChannelMask(), mask);
+}
+
+status_t StreamHalHidl::getFormat(audio_format_t *format) {
+    if (!mStream) return NO_INIT;
+    return processReturn("getFormat", mStream->getFormat(), format);
+}
+
+status_t StreamHalHidl::getAudioProperties(
+        uint32_t *sampleRate, audio_channel_mask_t *mask, audio_format_t *format) {
+    if (!mStream) return NO_INIT;
+    Return<void> ret = mStream->getAudioProperties(
+            [&](uint32_t sr, AudioChannelMask m, AudioFormat f) {
+                *sampleRate = sr;
+                *mask = static_cast<audio_channel_mask_t>(m);
+                *format = static_cast<audio_format_t>(f);
+            });
+    return processReturn("getAudioProperties", ret);
+}
+
+status_t StreamHalHidl::setParameters(const String8& kvPairs) {
+    if (!mStream) return NO_INIT;
+    hidl_vec<ParameterValue> hidlParams;
+    status_t status = parametersFromHal(kvPairs, &hidlParams);
+    if (status != OK) return status;
+    return processReturn("setParameters", mStream->setParameters(hidlParams));
+}
+
+status_t StreamHalHidl::getParameters(const String8& keys, String8 *values) {
+    values->clear();
+    if (!mStream) return NO_INIT;
+    hidl_vec<hidl_string> hidlKeys;
+    status_t status = keysFromHal(keys, &hidlKeys);
+    if (status != OK) return status;
+    Result retval;
+    Return<void> ret = mStream->getParameters(
+            hidlKeys,
+            [&](Result r, const hidl_vec<ParameterValue>& parameters) {
+                retval = r;
+                if (retval == Result::OK) {
+                    parametersToHal(parameters, values);
+                }
+            });
+    return processReturn("getParameters", ret, retval);
+}
+
+status_t StreamHalHidl::addEffect(sp<EffectHalInterface> effect) {
+    if (!mStream) return NO_INIT;
+    return processReturn("addEffect", mStream->addEffect(
+                    static_cast<EffectHalHidl*>(effect.get())->effectId()));
+}
+
+status_t StreamHalHidl::removeEffect(sp<EffectHalInterface> effect) {
+    if (!mStream) return NO_INIT;
+    return processReturn("removeEffect", mStream->removeEffect(
+                    static_cast<EffectHalHidl*>(effect.get())->effectId()));
+}
+
+status_t StreamHalHidl::standby() {
+    if (!mStream) return NO_INIT;
+    return processReturn("standby", mStream->standby());
+}
+
+status_t StreamHalHidl::dump(int fd) {
+    if (!mStream) return NO_INIT;
+    native_handle_t* hidlHandle = native_handle_create(1, 0);
+    hidlHandle->data[0] = fd;
+    Return<void> ret = mStream->debugDump(hidlHandle);
+    native_handle_delete(hidlHandle);
+    return processReturn("dump", ret);
+}
+
+status_t StreamHalHidl::start() {
+    if (!mStream) return NO_INIT;
+    return processReturn("start", mStream->start());
+}
+
+status_t StreamHalHidl::stop() {
+    if (!mStream) return NO_INIT;
+    return processReturn("stop", mStream->stop());
+}
+
+status_t StreamHalHidl::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info) {
+    Result retval;
+    Return<void> ret = mStream->createMmapBuffer(
+            minSizeFrames,
+            [&](Result r, const MmapBufferInfo& hidlInfo) {
+                retval = r;
+                if (retval == Result::OK) {
+                    const native_handle *handle = hidlInfo.sharedMemory.handle();
+                    if (handle->numFds > 0) {
+                        info->shared_memory_fd = handle->data[0];
+                        info->buffer_size_frames = hidlInfo.bufferSizeFrames;
+                        info->burst_size_frames = hidlInfo.burstSizeFrames;
+                        // info->shared_memory_address is not needed in HIDL context
+                        info->shared_memory_address = NULL;
+                    } else {
+                        retval = Result::NOT_INITIALIZED;
+                    }
+                }
+            });
+    return processReturn("createMmapBuffer", ret, retval);
+}
+
+status_t StreamHalHidl::getMmapPosition(struct audio_mmap_position *position) {
+    Result retval;
+    Return<void> ret = mStream->getMmapPosition(
+            [&](Result r, const MmapPosition& hidlPosition) {
+                retval = r;
+                if (retval == Result::OK) {
+                    position->time_nanoseconds = hidlPosition.timeNanoseconds;
+                    position->position_frames = hidlPosition.positionFrames;
+                }
+            });
+    return processReturn("getMmapPosition", ret, retval);
+}
+
+status_t StreamHalHidl::setHalThreadPriority(int priority) {
+    mHalThreadPriority = priority;
+    return OK;
+}
+
+bool StreamHalHidl::requestHalThreadPriority(pid_t threadPid, pid_t threadId) {
+    if (mHalThreadPriority == HAL_THREAD_PRIORITY_DEFAULT) {
+        return true;
+    }
+    int err = requestPriority(
+            threadPid, threadId,
+            mHalThreadPriority, false /*isForApp*/, true /*asynchronous*/);
+    ALOGE_IF(err, "failed to set priority %d for pid %d tid %d; error %d",
+            mHalThreadPriority, threadPid, threadId, err);
+    // Audio will still work, but latency will be higher and sometimes unacceptable.
+    return err == 0;
+}
+
+namespace {
+
+/* Notes on callback ownership.
+
+This is how (Hw)Binder ownership model looks like. The server implementation
+is owned by Binder framework (via sp<>). Proxies are owned by clients.
+When the last proxy disappears, Binder framework releases the server impl.
+
+Thus, it is not needed to keep any references to StreamOutCallback (this is
+the server impl) -- it will live as long as HAL server holds a strong ref to
+IStreamOutCallback proxy. We clear that reference by calling 'clearCallback'
+from the destructor of StreamOutHalHidl.
+
+The callback only keeps a weak reference to the stream. The stream is owned
+by AudioFlinger.
+
+*/
+
+struct StreamOutCallback : public IStreamOutCallback {
+    StreamOutCallback(const wp<StreamOutHalHidl>& stream) : mStream(stream) {}
+
+    // IStreamOutCallback implementation
+    Return<void> onWriteReady()  override {
+        sp<StreamOutHalHidl> stream = mStream.promote();
+        if (stream != 0) {
+            stream->onWriteReady();
+        }
+        return Void();
+    }
+
+    Return<void> onDrainReady()  override {
+        sp<StreamOutHalHidl> stream = mStream.promote();
+        if (stream != 0) {
+            stream->onDrainReady();
+        }
+        return Void();
+    }
+
+    Return<void> onError()  override {
+        sp<StreamOutHalHidl> stream = mStream.promote();
+        if (stream != 0) {
+            stream->onError();
+        }
+        return Void();
+    }
+
+  private:
+    wp<StreamOutHalHidl> mStream;
+};
+
+}  // namespace
+
+StreamOutHalHidl::StreamOutHalHidl(const sp<IStreamOut>& stream)
+        : StreamHalHidl(stream.get()), mStream(stream), mWriterClient(0), mEfGroup(nullptr) {
+}
+
+StreamOutHalHidl::~StreamOutHalHidl() {
+    if (mStream != 0) {
+        if (mCallback.unsafe_get()) {
+            processReturn("clearCallback", mStream->clearCallback());
+        }
+        processReturn("close", mStream->close());
+        mStream.clear();
+    }
+    mCallback.clear();
+    hardware::IPCThreadState::self()->flushCommands();
+    if (mEfGroup) {
+        EventFlag::deleteEventFlag(&mEfGroup);
+    }
+}
+
+status_t StreamOutHalHidl::getFrameSize(size_t *size) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("getFrameSize", mStream->getFrameSize(), size);
+}
+
+status_t StreamOutHalHidl::getLatency(uint32_t *latency) {
+    if (mStream == 0) return NO_INIT;
+    if (mWriterClient == gettid() && mCommandMQ) {
+        return callWriterThread(
+                WriteCommand::GET_LATENCY, "getLatency", nullptr, 0,
+                [&](const WriteStatus& writeStatus) {
+                    *latency = writeStatus.reply.latencyMs;
+                });
+    } else {
+        return processReturn("getLatency", mStream->getLatency(), latency);
+    }
+}
+
+status_t StreamOutHalHidl::setVolume(float left, float right) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("setVolume", mStream->setVolume(left, right));
+}
+
+status_t StreamOutHalHidl::write(const void *buffer, size_t bytes, size_t *written) {
+    if (mStream == 0) return NO_INIT;
+    *written = 0;
+
+    if (bytes == 0 && !mDataMQ) {
+        // Can't determine the size for the MQ buffer. Wait for a non-empty write request.
+        ALOGW_IF(mCallback.unsafe_get(), "First call to async write with 0 bytes");
+        return OK;
+    }
+
+    status_t status;
+    if (!mDataMQ && (status = prepareForWriting(bytes)) != OK) {
+        return status;
+    }
+
+    return callWriterThread(
+            WriteCommand::WRITE, "write", static_cast<const uint8_t*>(buffer), bytes,
+            [&] (const WriteStatus& writeStatus) {
+                *written = writeStatus.reply.written;
+                // Diagnostics of the cause of b/35813113.
+                ALOGE_IF(*written > bytes,
+                        "hal reports more bytes written than asked for: %lld > %lld",
+                        (long long)*written, (long long)bytes);
+            });
+}
+
+status_t StreamOutHalHidl::callWriterThread(
+        WriteCommand cmd, const char* cmdName,
+        const uint8_t* data, size_t dataSize, StreamOutHalHidl::WriterCallback callback) {
+    if (!mCommandMQ->write(&cmd)) {
+        ALOGE("command message queue write failed for \"%s\"", cmdName);
+        return -EAGAIN;
+    }
+    if (data != nullptr) {
+        size_t availableToWrite = mDataMQ->availableToWrite();
+        if (dataSize > availableToWrite) {
+            ALOGW("truncating write data from %lld to %lld due to insufficient data queue space",
+                    (long long)dataSize, (long long)availableToWrite);
+            dataSize = availableToWrite;
+        }
+        if (!mDataMQ->write(data, dataSize)) {
+            ALOGE("data message queue write failed for \"%s\"", cmdName);
+        }
+    }
+    mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY));
+
+    // TODO: Remove manual event flag handling once blocking MQ is implemented. b/33815422
+    uint32_t efState = 0;
+retry:
+    status_t ret = mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL), &efState);
+    if (efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL)) {
+        WriteStatus writeStatus;
+        writeStatus.retval = Result::NOT_INITIALIZED;
+        if (!mStatusMQ->read(&writeStatus)) {
+            ALOGE("status message read failed for \"%s\"", cmdName);
+        }
+        if (writeStatus.retval == Result::OK) {
+            ret = OK;
+            callback(writeStatus);
+        } else {
+            ret = processReturn(cmdName, writeStatus.retval);
+        }
+        return ret;
+    }
+    if (ret == -EAGAIN || ret == -EINTR) {
+        // Spurious wakeup. This normally retries no more than once.
+        goto retry;
+    }
+    return ret;
+}
+
+status_t StreamOutHalHidl::prepareForWriting(size_t bufferSize) {
+    std::unique_ptr<CommandMQ> tempCommandMQ;
+    std::unique_ptr<DataMQ> tempDataMQ;
+    std::unique_ptr<StatusMQ> tempStatusMQ;
+    Result retval;
+    pid_t halThreadPid, halThreadTid;
+    Return<void> ret = mStream->prepareForWriting(
+            1, bufferSize,
+            [&](Result r,
+                    const CommandMQ::Descriptor& commandMQ,
+                    const DataMQ::Descriptor& dataMQ,
+                    const StatusMQ::Descriptor& statusMQ,
+                    const ThreadInfo& halThreadInfo) {
+                retval = r;
+                if (retval == Result::OK) {
+                    tempCommandMQ.reset(new CommandMQ(commandMQ));
+                    tempDataMQ.reset(new DataMQ(dataMQ));
+                    tempStatusMQ.reset(new StatusMQ(statusMQ));
+                    if (tempDataMQ->isValid() && tempDataMQ->getEventFlagWord()) {
+                        EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &mEfGroup);
+                    }
+                    halThreadPid = halThreadInfo.pid;
+                    halThreadTid = halThreadInfo.tid;
+                }
+            });
+    if (!ret.isOk() || retval != Result::OK) {
+        return processReturn("prepareForWriting", ret, retval);
+    }
+    if (!tempCommandMQ || !tempCommandMQ->isValid() ||
+            !tempDataMQ || !tempDataMQ->isValid() ||
+            !tempStatusMQ || !tempStatusMQ->isValid() ||
+            !mEfGroup) {
+        ALOGE_IF(!tempCommandMQ, "Failed to obtain command message queue for writing");
+        ALOGE_IF(tempCommandMQ && !tempCommandMQ->isValid(),
+                "Command message queue for writing is invalid");
+        ALOGE_IF(!tempDataMQ, "Failed to obtain data message queue for writing");
+        ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "Data message queue for writing is invalid");
+        ALOGE_IF(!tempStatusMQ, "Failed to obtain status message queue for writing");
+        ALOGE_IF(tempStatusMQ && !tempStatusMQ->isValid(),
+                "Status message queue for writing is invalid");
+        ALOGE_IF(!mEfGroup, "Event flag creation for writing failed");
+        return NO_INIT;
+    }
+    requestHalThreadPriority(halThreadPid, halThreadTid);
+
+    mCommandMQ = std::move(tempCommandMQ);
+    mDataMQ = std::move(tempDataMQ);
+    mStatusMQ = std::move(tempStatusMQ);
+    mWriterClient = gettid();
+    return OK;
+}
+
+status_t StreamOutHalHidl::getRenderPosition(uint32_t *dspFrames) {
+    if (mStream == 0) return NO_INIT;
+    Result retval;
+    Return<void> ret = mStream->getRenderPosition(
+            [&](Result r, uint32_t d) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *dspFrames = d;
+                }
+            });
+    return processReturn("getRenderPosition", ret, retval);
+}
+
+status_t StreamOutHalHidl::getNextWriteTimestamp(int64_t *timestamp) {
+    if (mStream == 0) return NO_INIT;
+    Result retval;
+    Return<void> ret = mStream->getNextWriteTimestamp(
+            [&](Result r, int64_t t) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *timestamp = t;
+                }
+            });
+    return processReturn("getRenderPosition", ret, retval);
+}
+
+status_t StreamOutHalHidl::setCallback(wp<StreamOutHalInterfaceCallback> callback) {
+    if (mStream == 0) return NO_INIT;
+    status_t status = processReturn(
+            "setCallback", mStream->setCallback(new StreamOutCallback(this)));
+    if (status == OK) {
+        mCallback = callback;
+    }
+    return status;
+}
+
+status_t StreamOutHalHidl::supportsPauseAndResume(bool *supportsPause, bool *supportsResume) {
+    if (mStream == 0) return NO_INIT;
+    Return<void> ret = mStream->supportsPauseAndResume(
+            [&](bool p, bool r) {
+                *supportsPause = p;
+                *supportsResume = r;
+            });
+    return processReturn("supportsPauseAndResume", ret);
+}
+
+status_t StreamOutHalHidl::pause() {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("pause", mStream->pause());
+}
+
+status_t StreamOutHalHidl::resume() {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("pause", mStream->resume());
+}
+
+status_t StreamOutHalHidl::supportsDrain(bool *supportsDrain) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("supportsDrain", mStream->supportsDrain(), supportsDrain);
+}
+
+status_t StreamOutHalHidl::drain(bool earlyNotify) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn(
+            "drain", mStream->drain(earlyNotify ? AudioDrain::EARLY_NOTIFY : AudioDrain::ALL));
+}
+
+status_t StreamOutHalHidl::flush() {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("pause", mStream->flush());
+}
+
+status_t StreamOutHalHidl::getPresentationPosition(uint64_t *frames, struct timespec *timestamp) {
+    if (mStream == 0) return NO_INIT;
+    if (mWriterClient == gettid() && mCommandMQ) {
+        return callWriterThread(
+                WriteCommand::GET_PRESENTATION_POSITION, "getPresentationPosition", nullptr, 0,
+                [&](const WriteStatus& writeStatus) {
+                    *frames = writeStatus.reply.presentationPosition.frames;
+                    timestamp->tv_sec = writeStatus.reply.presentationPosition.timeStamp.tvSec;
+                    timestamp->tv_nsec = writeStatus.reply.presentationPosition.timeStamp.tvNSec;
+                });
+    } else {
+        Result retval;
+        Return<void> ret = mStream->getPresentationPosition(
+                [&](Result r, uint64_t hidlFrames, const TimeSpec& hidlTimeStamp) {
+                    retval = r;
+                    if (retval == Result::OK) {
+                        *frames = hidlFrames;
+                        timestamp->tv_sec = hidlTimeStamp.tvSec;
+                        timestamp->tv_nsec = hidlTimeStamp.tvNSec;
+                    }
+                });
+        return processReturn("getPresentationPosition", ret, retval);
+    }
+}
+
+void StreamOutHalHidl::onWriteReady() {
+    sp<StreamOutHalInterfaceCallback> callback = mCallback.promote();
+    if (callback == 0) return;
+    ALOGV("asyncCallback onWriteReady");
+    callback->onWriteReady();
+}
+
+void StreamOutHalHidl::onDrainReady() {
+    sp<StreamOutHalInterfaceCallback> callback = mCallback.promote();
+    if (callback == 0) return;
+    ALOGV("asyncCallback onDrainReady");
+    callback->onDrainReady();
+}
+
+void StreamOutHalHidl::onError() {
+    sp<StreamOutHalInterfaceCallback> callback = mCallback.promote();
+    if (callback == 0) return;
+    ALOGV("asyncCallback onError");
+    callback->onError();
+}
+
+
+StreamInHalHidl::StreamInHalHidl(const sp<IStreamIn>& stream)
+        : StreamHalHidl(stream.get()), mStream(stream), mReaderClient(0), mEfGroup(nullptr) {
+}
+
+StreamInHalHidl::~StreamInHalHidl() {
+    if (mStream != 0) {
+        processReturn("close", mStream->close());
+        mStream.clear();
+        hardware::IPCThreadState::self()->flushCommands();
+    }
+    if (mEfGroup) {
+        EventFlag::deleteEventFlag(&mEfGroup);
+    }
+}
+
+status_t StreamInHalHidl::getFrameSize(size_t *size) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("getFrameSize", mStream->getFrameSize(), size);
+}
+
+status_t StreamInHalHidl::setGain(float gain) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("setGain", mStream->setGain(gain));
+}
+
+status_t StreamInHalHidl::read(void *buffer, size_t bytes, size_t *read) {
+    if (mStream == 0) return NO_INIT;
+    *read = 0;
+
+    if (bytes == 0 && !mDataMQ) {
+        // Can't determine the size for the MQ buffer. Wait for a non-empty read request.
+        return OK;
+    }
+
+    status_t status;
+    if (!mDataMQ && (status = prepareForReading(bytes)) != OK) {
+        return status;
+    }
+
+    ReadParameters params;
+    params.command = ReadCommand::READ;
+    params.params.read = bytes;
+    return callReaderThread(params, "read",
+            [&](const ReadStatus& readStatus) {
+                const size_t availToRead = mDataMQ->availableToRead();
+                if (!mDataMQ->read(static_cast<uint8_t*>(buffer), std::min(bytes, availToRead))) {
+                    ALOGE("data message queue read failed for \"read\"");
+                }
+                ALOGW_IF(availToRead != readStatus.reply.read,
+                        "HAL read report inconsistent: mq = %d, status = %d",
+                        (int32_t)availToRead, (int32_t)readStatus.reply.read);
+                *read = readStatus.reply.read;
+            });
+}
+
+status_t StreamInHalHidl::callReaderThread(
+        const ReadParameters& params, const char* cmdName,
+        StreamInHalHidl::ReaderCallback callback) {
+    if (!mCommandMQ->write(&params)) {
+        ALOGW("command message queue write failed");
+        return -EAGAIN;
+    }
+    mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
+
+    // TODO: Remove manual event flag handling once blocking MQ is implemented. b/33815422
+    uint32_t efState = 0;
+retry:
+    status_t ret = mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY), &efState);
+    if (efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY)) {
+        ReadStatus readStatus;
+        readStatus.retval = Result::NOT_INITIALIZED;
+        if (!mStatusMQ->read(&readStatus)) {
+            ALOGE("status message read failed for \"%s\"", cmdName);
+        }
+         if (readStatus.retval == Result::OK) {
+            ret = OK;
+            callback(readStatus);
+        } else {
+            ret = processReturn(cmdName, readStatus.retval);
+        }
+        return ret;
+    }
+    if (ret == -EAGAIN || ret == -EINTR) {
+        // Spurious wakeup. This normally retries no more than once.
+        goto retry;
+    }
+    return ret;
+}
+
+status_t StreamInHalHidl::prepareForReading(size_t bufferSize) {
+    std::unique_ptr<CommandMQ> tempCommandMQ;
+    std::unique_ptr<DataMQ> tempDataMQ;
+    std::unique_ptr<StatusMQ> tempStatusMQ;
+    Result retval;
+    pid_t halThreadPid, halThreadTid;
+    Return<void> ret = mStream->prepareForReading(
+            1, bufferSize,
+            [&](Result r,
+                    const CommandMQ::Descriptor& commandMQ,
+                    const DataMQ::Descriptor& dataMQ,
+                    const StatusMQ::Descriptor& statusMQ,
+                    const ThreadInfo& halThreadInfo) {
+                retval = r;
+                if (retval == Result::OK) {
+                    tempCommandMQ.reset(new CommandMQ(commandMQ));
+                    tempDataMQ.reset(new DataMQ(dataMQ));
+                    tempStatusMQ.reset(new StatusMQ(statusMQ));
+                    if (tempDataMQ->isValid() && tempDataMQ->getEventFlagWord()) {
+                        EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &mEfGroup);
+                    }
+                    halThreadPid = halThreadInfo.pid;
+                    halThreadTid = halThreadInfo.tid;
+                }
+            });
+    if (!ret.isOk() || retval != Result::OK) {
+        return processReturn("prepareForReading", ret, retval);
+    }
+    if (!tempCommandMQ || !tempCommandMQ->isValid() ||
+            !tempDataMQ || !tempDataMQ->isValid() ||
+            !tempStatusMQ || !tempStatusMQ->isValid() ||
+            !mEfGroup) {
+        ALOGE_IF(!tempCommandMQ, "Failed to obtain command message queue for writing");
+        ALOGE_IF(tempCommandMQ && !tempCommandMQ->isValid(),
+                "Command message queue for writing is invalid");
+        ALOGE_IF(!tempDataMQ, "Failed to obtain data message queue for reading");
+        ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "Data message queue for reading is invalid");
+        ALOGE_IF(!tempStatusMQ, "Failed to obtain status message queue for reading");
+        ALOGE_IF(tempStatusMQ && !tempStatusMQ->isValid(),
+                "Status message queue for reading is invalid");
+        ALOGE_IF(!mEfGroup, "Event flag creation for reading failed");
+        return NO_INIT;
+    }
+    requestHalThreadPriority(halThreadPid, halThreadTid);
+
+    mCommandMQ = std::move(tempCommandMQ);
+    mDataMQ = std::move(tempDataMQ);
+    mStatusMQ = std::move(tempStatusMQ);
+    mReaderClient = gettid();
+    return OK;
+}
+
+status_t StreamInHalHidl::getInputFramesLost(uint32_t *framesLost) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("getInputFramesLost", mStream->getInputFramesLost(), framesLost);
+}
+
+status_t StreamInHalHidl::getCapturePosition(int64_t *frames, int64_t *time) {
+    if (mStream == 0) return NO_INIT;
+    if (mReaderClient == gettid() && mCommandMQ) {
+        ReadParameters params;
+        params.command = ReadCommand::GET_CAPTURE_POSITION;
+        return callReaderThread(params, "getCapturePosition",
+                [&](const ReadStatus& readStatus) {
+                    *frames = readStatus.reply.capturePosition.frames;
+                    *time = readStatus.reply.capturePosition.time;
+                });
+    } else {
+        Result retval;
+        Return<void> ret = mStream->getCapturePosition(
+                [&](Result r, uint64_t hidlFrames, uint64_t hidlTime) {
+                    retval = r;
+                    if (retval == Result::OK) {
+                        *frames = hidlFrames;
+                        *time = hidlTime;
+                    }
+                });
+        return processReturn("getCapturePosition", ret, retval);
+    }
+}
+
+} // namespace android
diff --git a/media/libaudiohal/StreamHalHidl.h b/media/libaudiohal/StreamHalHidl.h
new file mode 100644
index 0000000..a7df276
--- /dev/null
+++ b/media/libaudiohal/StreamHalHidl.h
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_STREAM_HAL_HIDL_H
+#define ANDROID_HARDWARE_STREAM_HAL_HIDL_H
+
+#include <atomic>
+
+#include <android/hardware/audio/2.0/IStream.h>
+#include <android/hardware/audio/2.0/IStreamIn.h>
+#include <android/hardware/audio/2.0/IStreamOut.h>
+#include <fmq/EventFlag.h>
+#include <fmq/MessageQueue.h>
+#include <media/audiohal/StreamHalInterface.h>
+
+#include "ConversionHelperHidl.h"
+
+using ::android::hardware::audio::V2_0::IStream;
+using ::android::hardware::audio::V2_0::IStreamIn;
+using ::android::hardware::audio::V2_0::IStreamOut;
+using ::android::hardware::EventFlag;
+using ::android::hardware::MessageQueue;
+using ::android::hardware::Return;
+using ReadParameters = ::android::hardware::audio::V2_0::IStreamIn::ReadParameters;
+using ReadStatus = ::android::hardware::audio::V2_0::IStreamIn::ReadStatus;
+using WriteCommand = ::android::hardware::audio::V2_0::IStreamOut::WriteCommand;
+using WriteStatus = ::android::hardware::audio::V2_0::IStreamOut::WriteStatus;
+
+namespace android {
+
+class DeviceHalHidl;
+
+class StreamHalHidl : public virtual StreamHalInterface, public ConversionHelperHidl
+{
+  public:
+    // Return the sampling rate in Hz - eg. 44100.
+    virtual status_t getSampleRate(uint32_t *rate);
+
+    // Return size of input/output buffer in bytes for this stream - eg. 4800.
+    virtual status_t getBufferSize(size_t *size);
+
+    // Return the channel mask.
+    virtual status_t getChannelMask(audio_channel_mask_t *mask);
+
+    // Return the audio format - e.g. AUDIO_FORMAT_PCM_16_BIT.
+    virtual status_t getFormat(audio_format_t *format);
+
+    // Convenience method.
+    virtual status_t getAudioProperties(
+            uint32_t *sampleRate, audio_channel_mask_t *mask, audio_format_t *format);
+
+    // Set audio stream parameters.
+    virtual status_t setParameters(const String8& kvPairs);
+
+    // Get audio stream parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values);
+
+    // Add or remove the effect on the stream.
+    virtual status_t addEffect(sp<EffectHalInterface> effect);
+    virtual status_t removeEffect(sp<EffectHalInterface> effect);
+
+    // Put the audio hardware input/output into standby mode.
+    virtual status_t standby();
+
+    virtual status_t dump(int fd);
+
+    // Start a stream operating in mmap mode.
+    virtual status_t start();
+
+    // Stop a stream operating in mmap mode.
+    virtual status_t stop();
+
+    // Retrieve information on the data buffer in mmap mode.
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info);
+
+    // Get current read/write position in the mmap buffer
+    virtual status_t getMmapPosition(struct audio_mmap_position *position);
+
+    // Set the priority of the thread that interacts with the HAL
+    // (must match the priority of the audioflinger's thread that calls 'read' / 'write')
+    virtual status_t setHalThreadPriority(int priority);
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    explicit StreamHalHidl(IStream *stream);
+
+    // The destructor automatically closes the stream.
+    virtual ~StreamHalHidl();
+
+    bool requestHalThreadPriority(pid_t threadPid, pid_t threadId);
+
+  private:
+    const int HAL_THREAD_PRIORITY_DEFAULT = -1;
+    IStream *mStream;
+    int mHalThreadPriority;
+};
+
+class StreamOutHalHidl : public StreamOutHalInterface, public StreamHalHidl {
+  public:
+    // Return the frame size (number of bytes per sample) of a stream.
+    virtual status_t getFrameSize(size_t *size);
+
+    // Return the audio hardware driver estimated latency in milliseconds.
+    virtual status_t getLatency(uint32_t *latency);
+
+    // Use this method in situations where audio mixing is done in the hardware.
+    virtual status_t setVolume(float left, float right);
+
+    // Write audio buffer to driver.
+    virtual status_t write(const void *buffer, size_t bytes, size_t *written);
+
+    // Return the number of audio frames written by the audio dsp to DAC since
+    // the output has exited standby.
+    virtual status_t getRenderPosition(uint32_t *dspFrames);
+
+    // Get the local time at which the next write to the audio driver will be presented.
+    virtual status_t getNextWriteTimestamp(int64_t *timestamp);
+
+    // Set the callback for notifying completion of non-blocking write and drain.
+    virtual status_t setCallback(wp<StreamOutHalInterfaceCallback> callback);
+
+    // Returns whether pause and resume operations are supported.
+    virtual status_t supportsPauseAndResume(bool *supportsPause, bool *supportsResume);
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t pause();
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t resume();
+
+    // Returns whether drain operation is supported.
+    virtual status_t supportsDrain(bool *supportsDrain);
+
+    // Requests notification when data buffered by the driver/hardware has been played.
+    virtual status_t drain(bool earlyNotify);
+
+    // Notifies to the audio driver to flush the queued data.
+    virtual status_t flush();
+
+    // Return a recent count of the number of audio frames presented to an external observer.
+    virtual status_t getPresentationPosition(uint64_t *frames, struct timespec *timestamp);
+
+    // Methods used by StreamOutCallback (HIDL).
+    void onWriteReady();
+    void onDrainReady();
+    void onError();
+
+  private:
+    friend class DeviceHalHidl;
+    typedef MessageQueue<WriteCommand, hardware::kSynchronizedReadWrite> CommandMQ;
+    typedef MessageQueue<uint8_t, hardware::kSynchronizedReadWrite> DataMQ;
+    typedef MessageQueue<WriteStatus, hardware::kSynchronizedReadWrite> StatusMQ;
+
+    wp<StreamOutHalInterfaceCallback> mCallback;
+    sp<IStreamOut> mStream;
+    std::unique_ptr<CommandMQ> mCommandMQ;
+    std::unique_ptr<DataMQ> mDataMQ;
+    std::unique_ptr<StatusMQ> mStatusMQ;
+    std::atomic<pid_t> mWriterClient;
+    EventFlag* mEfGroup;
+
+    // Can not be constructed directly by clients.
+    StreamOutHalHidl(const sp<IStreamOut>& stream);
+
+    virtual ~StreamOutHalHidl();
+
+    using WriterCallback = std::function<void(const WriteStatus& writeStatus)>;
+    status_t callWriterThread(
+            WriteCommand cmd, const char* cmdName,
+            const uint8_t* data, size_t dataSize, WriterCallback callback);
+    status_t prepareForWriting(size_t bufferSize);
+};
+
+class StreamInHalHidl : public StreamInHalInterface, public StreamHalHidl {
+  public:
+    // Return the frame size (number of bytes per sample) of a stream.
+    virtual status_t getFrameSize(size_t *size);
+
+    // Set the input gain for the audio driver.
+    virtual status_t setGain(float gain);
+
+    // Read audio buffer in from driver.
+    virtual status_t read(void *buffer, size_t bytes, size_t *read);
+
+    // Return the amount of input frames lost in the audio driver.
+    virtual status_t getInputFramesLost(uint32_t *framesLost);
+
+    // Return a recent count of the number of audio frames received and
+    // the clock time associated with that frame count.
+    virtual status_t getCapturePosition(int64_t *frames, int64_t *time);
+
+  private:
+    friend class DeviceHalHidl;
+    typedef MessageQueue<ReadParameters, hardware::kSynchronizedReadWrite> CommandMQ;
+    typedef MessageQueue<uint8_t, hardware::kSynchronizedReadWrite> DataMQ;
+    typedef MessageQueue<ReadStatus, hardware::kSynchronizedReadWrite> StatusMQ;
+
+    sp<IStreamIn> mStream;
+    std::unique_ptr<CommandMQ> mCommandMQ;
+    std::unique_ptr<DataMQ> mDataMQ;
+    std::unique_ptr<StatusMQ> mStatusMQ;
+    std::atomic<pid_t> mReaderClient;
+    EventFlag* mEfGroup;
+
+    // Can not be constructed directly by clients.
+    StreamInHalHidl(const sp<IStreamIn>& stream);
+
+    virtual ~StreamInHalHidl();
+
+    using ReaderCallback = std::function<void(const ReadStatus& readStatus)>;
+    status_t callReaderThread(
+            const ReadParameters& params, const char* cmdName, ReaderCallback callback);
+    status_t prepareForReading(size_t bufferSize);
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_STREAM_HAL_HIDL_H
diff --git a/media/libaudiohal/StreamHalLocal.cpp b/media/libaudiohal/StreamHalLocal.cpp
new file mode 100644
index 0000000..05800a0
--- /dev/null
+++ b/media/libaudiohal/StreamHalLocal.cpp
@@ -0,0 +1,307 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "StreamHalLocal"
+//#define LOG_NDEBUG 0
+
+#include <hardware/audio.h>
+#include <utils/Log.h>
+
+#include "DeviceHalLocal.h"
+#include "EffectHalLocal.h"
+#include "StreamHalLocal.h"
+
+namespace android {
+
+StreamHalLocal::StreamHalLocal(audio_stream_t *stream, sp<DeviceHalLocal> device)
+        : mDevice(device), mStream(stream) {
+}
+
+StreamHalLocal::~StreamHalLocal() {
+    mStream = 0;
+    mDevice.clear();
+}
+
+status_t StreamHalLocal::getSampleRate(uint32_t *rate) {
+    *rate = mStream->get_sample_rate(mStream);
+    return OK;
+}
+
+status_t StreamHalLocal::getBufferSize(size_t *size) {
+    *size = mStream->get_buffer_size(mStream);
+    return OK;
+}
+
+status_t StreamHalLocal::getChannelMask(audio_channel_mask_t *mask) {
+    *mask = mStream->get_channels(mStream);
+    return OK;
+}
+
+status_t StreamHalLocal::getFormat(audio_format_t *format) {
+    *format = mStream->get_format(mStream);
+    return OK;
+}
+
+status_t StreamHalLocal::getAudioProperties(
+        uint32_t *sampleRate, audio_channel_mask_t *mask, audio_format_t *format) {
+    *sampleRate = mStream->get_sample_rate(mStream);
+    *mask = mStream->get_channels(mStream);
+    *format = mStream->get_format(mStream);
+    return OK;
+}
+
+status_t StreamHalLocal::setParameters(const String8& kvPairs) {
+    return mStream->set_parameters(mStream, kvPairs.string());
+}
+
+status_t StreamHalLocal::getParameters(const String8& keys, String8 *values) {
+    char *halValues = mStream->get_parameters(mStream, keys.string());
+    if (halValues != NULL) {
+        values->setTo(halValues);
+        free(halValues);
+    } else {
+        values->clear();
+    }
+    return OK;
+}
+
+status_t StreamHalLocal::addEffect(sp<EffectHalInterface> effect) {
+    LOG_ALWAYS_FATAL_IF(!effect->isLocal(), "Only local effects can be added for a local stream");
+    return mStream->add_audio_effect(mStream,
+            static_cast<EffectHalLocal*>(effect.get())->handle());
+}
+
+status_t StreamHalLocal::removeEffect(sp<EffectHalInterface> effect) {
+    LOG_ALWAYS_FATAL_IF(!effect->isLocal(), "Only local effects can be removed for a local stream");
+    return mStream->remove_audio_effect(mStream,
+            static_cast<EffectHalLocal*>(effect.get())->handle());
+}
+
+status_t StreamHalLocal::standby() {
+    return mStream->standby(mStream);
+}
+
+status_t StreamHalLocal::dump(int fd) {
+    return mStream->dump(mStream, fd);
+}
+
+status_t StreamHalLocal::setHalThreadPriority(int) {
+    // Don't need to do anything as local hal is executed by audioflinger directly
+    // on the same thread.
+    return OK;
+}
+
+StreamOutHalLocal::StreamOutHalLocal(audio_stream_out_t *stream, sp<DeviceHalLocal> device)
+        : StreamHalLocal(&stream->common, device), mStream(stream) {
+}
+
+StreamOutHalLocal::~StreamOutHalLocal() {
+    mCallback.clear();
+    mDevice->closeOutputStream(mStream);
+    mStream = 0;
+}
+
+status_t StreamOutHalLocal::getFrameSize(size_t *size) {
+    *size = audio_stream_out_frame_size(mStream);
+    return OK;
+}
+
+status_t StreamOutHalLocal::getLatency(uint32_t *latency) {
+    *latency = mStream->get_latency(mStream);
+    return OK;
+}
+
+status_t StreamOutHalLocal::setVolume(float left, float right) {
+    if (mStream->set_volume == NULL) return INVALID_OPERATION;
+    return mStream->set_volume(mStream, left, right);
+}
+
+status_t StreamOutHalLocal::write(const void *buffer, size_t bytes, size_t *written) {
+    ssize_t writeResult = mStream->write(mStream, buffer, bytes);
+    if (writeResult > 0) {
+        *written = writeResult;
+        return OK;
+    } else {
+        *written = 0;
+        return writeResult;
+    }
+}
+
+status_t StreamOutHalLocal::getRenderPosition(uint32_t *dspFrames) {
+    return mStream->get_render_position(mStream, dspFrames);
+}
+
+status_t StreamOutHalLocal::getNextWriteTimestamp(int64_t *timestamp) {
+    if (mStream->get_next_write_timestamp == NULL) return INVALID_OPERATION;
+    return mStream->get_next_write_timestamp(mStream, timestamp);
+}
+
+status_t StreamOutHalLocal::setCallback(wp<StreamOutHalInterfaceCallback> callback) {
+    if (mStream->set_callback == NULL) return INVALID_OPERATION;
+    status_t result = mStream->set_callback(mStream, StreamOutHalLocal::asyncCallback, this);
+    if (result == OK) {
+        mCallback = callback;
+    }
+    return result;
+}
+
+// static
+int StreamOutHalLocal::asyncCallback(stream_callback_event_t event, void*, void *cookie) {
+    // We act as if we gave a wp<StreamOutHalLocal> to HAL. This way we should handle
+    // correctly the case when the callback is invoked while StreamOutHalLocal's destructor is
+    // already running, because the destructor is invoked after the refcount has been atomically
+    // decremented.
+    wp<StreamOutHalLocal> weakSelf(static_cast<StreamOutHalLocal*>(cookie));
+    sp<StreamOutHalLocal> self = weakSelf.promote();
+    if (self == 0) return 0;
+    sp<StreamOutHalInterfaceCallback> callback = self->mCallback.promote();
+    if (callback == 0) return 0;
+    ALOGV("asyncCallback() event %d", event);
+    switch (event) {
+        case STREAM_CBK_EVENT_WRITE_READY:
+            callback->onWriteReady();
+            break;
+        case STREAM_CBK_EVENT_DRAIN_READY:
+            callback->onDrainReady();
+            break;
+        case STREAM_CBK_EVENT_ERROR:
+            callback->onError();
+            break;
+        default:
+            ALOGW("asyncCallback() unknown event %d", event);
+            break;
+    }
+    return 0;
+}
+
+status_t StreamOutHalLocal::supportsPauseAndResume(bool *supportsPause, bool *supportsResume) {
+    *supportsPause = mStream->pause != NULL;
+    *supportsResume = mStream->resume != NULL;
+    return OK;
+}
+
+status_t StreamOutHalLocal::pause() {
+    if (mStream->pause == NULL) return INVALID_OPERATION;
+    return mStream->pause(mStream);
+}
+
+status_t StreamOutHalLocal::resume() {
+    if (mStream->resume == NULL) return INVALID_OPERATION;
+    return mStream->resume(mStream);
+}
+
+status_t StreamOutHalLocal::supportsDrain(bool *supportsDrain) {
+    *supportsDrain = mStream->drain != NULL;
+    return OK;
+}
+
+status_t StreamOutHalLocal::drain(bool earlyNotify) {
+    if (mStream->drain == NULL) return INVALID_OPERATION;
+    return mStream->drain(mStream, earlyNotify ? AUDIO_DRAIN_EARLY_NOTIFY : AUDIO_DRAIN_ALL);
+}
+
+status_t StreamOutHalLocal::flush() {
+    if (mStream->flush == NULL) return INVALID_OPERATION;
+    return mStream->flush(mStream);
+}
+
+status_t StreamOutHalLocal::getPresentationPosition(uint64_t *frames, struct timespec *timestamp) {
+    if (mStream->get_presentation_position == NULL) return INVALID_OPERATION;
+    return mStream->get_presentation_position(mStream, frames, timestamp);
+}
+
+status_t StreamOutHalLocal::start() {
+    if (mStream->start == NULL) return INVALID_OPERATION;
+    return mStream->start(mStream);
+}
+
+status_t StreamOutHalLocal::stop() {
+    if (mStream->stop == NULL) return INVALID_OPERATION;
+    return mStream->stop(mStream);
+}
+
+status_t StreamOutHalLocal::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info) {
+    if (mStream->create_mmap_buffer == NULL) return INVALID_OPERATION;
+    return mStream->create_mmap_buffer(mStream, minSizeFrames, info);
+}
+
+status_t StreamOutHalLocal::getMmapPosition(struct audio_mmap_position *position) {
+    if (mStream->get_mmap_position == NULL) return INVALID_OPERATION;
+    return mStream->get_mmap_position(mStream, position);
+}
+
+StreamInHalLocal::StreamInHalLocal(audio_stream_in_t *stream, sp<DeviceHalLocal> device)
+        : StreamHalLocal(&stream->common, device), mStream(stream) {
+}
+
+StreamInHalLocal::~StreamInHalLocal() {
+    mDevice->closeInputStream(mStream);
+    mStream = 0;
+}
+
+status_t StreamInHalLocal::getFrameSize(size_t *size) {
+    *size = audio_stream_in_frame_size(mStream);
+    return OK;
+}
+
+status_t StreamInHalLocal::setGain(float gain) {
+    return mStream->set_gain(mStream, gain);
+}
+
+status_t StreamInHalLocal::read(void *buffer, size_t bytes, size_t *read) {
+    ssize_t readResult = mStream->read(mStream, buffer, bytes);
+    if (readResult > 0) {
+        *read = readResult;
+        return OK;
+    } else {
+        *read = 0;
+        return readResult;
+    }
+}
+
+status_t StreamInHalLocal::getInputFramesLost(uint32_t *framesLost) {
+    *framesLost = mStream->get_input_frames_lost(mStream);
+    return OK;
+}
+
+status_t StreamInHalLocal::getCapturePosition(int64_t *frames, int64_t *time) {
+    if (mStream->get_capture_position == NULL) return INVALID_OPERATION;
+    return mStream->get_capture_position(mStream, frames, time);
+}
+
+status_t StreamInHalLocal::start() {
+    if (mStream->start == NULL) return INVALID_OPERATION;
+    return mStream->start(mStream);
+}
+
+status_t StreamInHalLocal::stop() {
+    if (mStream->stop == NULL) return INVALID_OPERATION;
+    return mStream->stop(mStream);
+}
+
+status_t StreamInHalLocal::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info) {
+    if (mStream->create_mmap_buffer == NULL) return INVALID_OPERATION;
+    return mStream->create_mmap_buffer(mStream, minSizeFrames, info);
+}
+
+status_t StreamInHalLocal::getMmapPosition(struct audio_mmap_position *position) {
+    if (mStream->get_mmap_position == NULL) return INVALID_OPERATION;
+    return mStream->get_mmap_position(mStream, position);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/StreamHalLocal.h b/media/libaudiohal/StreamHalLocal.h
new file mode 100644
index 0000000..8c96c1f
--- /dev/null
+++ b/media/libaudiohal/StreamHalLocal.h
@@ -0,0 +1,206 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_STREAM_HAL_LOCAL_H
+#define ANDROID_HARDWARE_STREAM_HAL_LOCAL_H
+
+#include <media/audiohal/StreamHalInterface.h>
+
+namespace android {
+
+class DeviceHalLocal;
+
+class StreamHalLocal : public virtual StreamHalInterface
+{
+  public:
+    // Return the sampling rate in Hz - eg. 44100.
+    virtual status_t getSampleRate(uint32_t *rate);
+
+    // Return size of input/output buffer in bytes for this stream - eg. 4800.
+    virtual status_t getBufferSize(size_t *size);
+
+    // Return the channel mask.
+    virtual status_t getChannelMask(audio_channel_mask_t *mask);
+
+    // Return the audio format - e.g. AUDIO_FORMAT_PCM_16_BIT.
+    virtual status_t getFormat(audio_format_t *format);
+
+    // Convenience method.
+    virtual status_t getAudioProperties(
+            uint32_t *sampleRate, audio_channel_mask_t *mask, audio_format_t *format);
+
+    // Set audio stream parameters.
+    virtual status_t setParameters(const String8& kvPairs);
+
+    // Get audio stream parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values);
+
+    // Add or remove the effect on the stream.
+    virtual status_t addEffect(sp<EffectHalInterface> effect);
+    virtual status_t removeEffect(sp<EffectHalInterface> effect);
+
+    // Put the audio hardware input/output into standby mode.
+    virtual status_t standby();
+
+    virtual status_t dump(int fd);
+
+    // Start a stream operating in mmap mode.
+    virtual status_t start() = 0;
+
+    // Stop a stream operating in mmap mode.
+    virtual status_t stop() = 0;
+
+    // Retrieve information on the data buffer in mmap mode.
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info) = 0;
+
+    // Get current read/write position in the mmap buffer
+    virtual status_t getMmapPosition(struct audio_mmap_position *position) = 0;
+
+    // Set the priority of the thread that interacts with the HAL
+    // (must match the priority of the audioflinger's thread that calls 'read' / 'write')
+    virtual status_t setHalThreadPriority(int priority);
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    StreamHalLocal(audio_stream_t *stream, sp<DeviceHalLocal> device);
+
+    // The destructor automatically closes the stream.
+    virtual ~StreamHalLocal();
+
+    sp<DeviceHalLocal> mDevice;
+
+  private:
+    audio_stream_t *mStream;
+};
+
+class StreamOutHalLocal : public StreamOutHalInterface, public StreamHalLocal {
+  public:
+    // Return the frame size (number of bytes per sample) of a stream.
+    virtual status_t getFrameSize(size_t *size);
+
+    // Return the audio hardware driver estimated latency in milliseconds.
+    virtual status_t getLatency(uint32_t *latency);
+
+    // Use this method in situations where audio mixing is done in the hardware.
+    virtual status_t setVolume(float left, float right);
+
+    // Write audio buffer to driver.
+    virtual status_t write(const void *buffer, size_t bytes, size_t *written);
+
+    // Return the number of audio frames written by the audio dsp to DAC since
+    // the output has exited standby.
+    virtual status_t getRenderPosition(uint32_t *dspFrames);
+
+    // Get the local time at which the next write to the audio driver will be presented.
+    virtual status_t getNextWriteTimestamp(int64_t *timestamp);
+
+    // Set the callback for notifying completion of non-blocking write and drain.
+    virtual status_t setCallback(wp<StreamOutHalInterfaceCallback> callback);
+
+    // Returns whether pause and resume operations are supported.
+    virtual status_t supportsPauseAndResume(bool *supportsPause, bool *supportsResume);
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t pause();
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t resume();
+
+    // Returns whether drain operation is supported.
+    virtual status_t supportsDrain(bool *supportsDrain);
+
+    // Requests notification when data buffered by the driver/hardware has been played.
+    virtual status_t drain(bool earlyNotify);
+
+    // Notifies to the audio driver to flush the queued data.
+    virtual status_t flush();
+
+    // Return a recent count of the number of audio frames presented to an external observer.
+    virtual status_t getPresentationPosition(uint64_t *frames, struct timespec *timestamp);
+
+    // Start a stream operating in mmap mode.
+    virtual status_t start();
+
+    // Stop a stream operating in mmap mode.
+    virtual status_t stop();
+
+    // Retrieve information on the data buffer in mmap mode.
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info);
+
+    // Get current read/write position in the mmap buffer
+    virtual status_t getMmapPosition(struct audio_mmap_position *position);
+
+  private:
+    audio_stream_out_t *mStream;
+    wp<StreamOutHalInterfaceCallback> mCallback;
+
+    friend class DeviceHalLocal;
+
+    // Can not be constructed directly by clients.
+    StreamOutHalLocal(audio_stream_out_t *stream, sp<DeviceHalLocal> device);
+
+    virtual ~StreamOutHalLocal();
+
+    static int asyncCallback(stream_callback_event_t event, void *param, void *cookie);
+};
+
+class StreamInHalLocal : public StreamInHalInterface, public StreamHalLocal {
+  public:
+    // Return the frame size (number of bytes per sample) of a stream.
+    virtual status_t getFrameSize(size_t *size);
+
+    // Set the input gain for the audio driver.
+    virtual status_t setGain(float gain);
+
+    // Read audio buffer in from driver.
+    virtual status_t read(void *buffer, size_t bytes, size_t *read);
+
+    // Return the amount of input frames lost in the audio driver.
+    virtual status_t getInputFramesLost(uint32_t *framesLost);
+
+    // Return a recent count of the number of audio frames received and
+    // the clock time associated with that frame count.
+    virtual status_t getCapturePosition(int64_t *frames, int64_t *time);
+
+    // Start a stream operating in mmap mode.
+    virtual status_t start();
+
+    // Stop a stream operating in mmap mode.
+    virtual status_t stop();
+
+    // Retrieve information on the data buffer in mmap mode.
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info);
+
+    // Get current read/write position in the mmap buffer
+    virtual status_t getMmapPosition(struct audio_mmap_position *position);
+
+  private:
+    audio_stream_in_t *mStream;
+
+    friend class DeviceHalLocal;
+
+    // Can not be constructed directly by clients.
+    StreamInHalLocal(audio_stream_in_t *stream, sp<DeviceHalLocal> device);
+
+    virtual ~StreamInHalLocal();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_STREAM_HAL_LOCAL_H
diff --git a/media/libaudiohal/include/DeviceHalInterface.h b/media/libaudiohal/include/DeviceHalInterface.h
new file mode 100644
index 0000000..caf01be
--- /dev/null
+++ b/media/libaudiohal/include/DeviceHalInterface.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICE_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_DEVICE_HAL_INTERFACE_H
+
+#include <system/audio.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+
+namespace android {
+
+class StreamInHalInterface;
+class StreamOutHalInterface;
+
+class DeviceHalInterface : public RefBase
+{
+  public:
+    // Sets the value of 'devices' to a bitmask of 1 or more values of audio_devices_t.
+    virtual status_t getSupportedDevices(uint32_t *devices) = 0;
+
+    // Check to see if the audio hardware interface has been initialized.
+    virtual status_t initCheck() = 0;
+
+    // Set the audio volume of a voice call. Range is between 0.0 and 1.0.
+    virtual status_t setVoiceVolume(float volume) = 0;
+
+    // Set the audio volume for all audio activities other than voice call.
+    virtual status_t setMasterVolume(float volume) = 0;
+
+    // Get the current master volume value for the HAL.
+    virtual status_t getMasterVolume(float *volume) = 0;
+
+    // Called when the audio mode changes.
+    virtual status_t setMode(audio_mode_t mode) = 0;
+
+    // Muting control.
+    virtual status_t setMicMute(bool state) = 0;
+    virtual status_t getMicMute(bool *state) = 0;
+    virtual status_t setMasterMute(bool state) = 0;
+    virtual status_t getMasterMute(bool *state) = 0;
+
+    // Set global audio parameters.
+    virtual status_t setParameters(const String8& kvPairs) = 0;
+
+    // Get global audio parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values) = 0;
+
+    // Returns audio input buffer size according to parameters passed.
+    virtual status_t getInputBufferSize(const struct audio_config *config,
+            size_t *size) = 0;
+
+    // Creates and opens the audio hardware output stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openOutputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            audio_output_flags_t flags,
+            struct audio_config *config,
+            const char *address,
+            sp<StreamOutHalInterface> *outStream) = 0;
+
+    // Creates and opens the audio hardware input stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openInputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            struct audio_config *config,
+            audio_input_flags_t flags,
+            const char *address,
+            audio_source_t source,
+            sp<StreamInHalInterface> *inStream) = 0;
+
+    // Returns whether createAudioPatch and releaseAudioPatch operations are supported.
+    virtual status_t supportsAudioPatches(bool *supportsPatches) = 0;
+
+    // Creates an audio patch between several source and sink ports.
+    virtual status_t createAudioPatch(
+            unsigned int num_sources,
+            const struct audio_port_config *sources,
+            unsigned int num_sinks,
+            const struct audio_port_config *sinks,
+            audio_patch_handle_t *patch) = 0;
+
+    // Releases an audio patch.
+    virtual status_t releaseAudioPatch(audio_patch_handle_t patch) = 0;
+
+    // Fills the list of supported attributes for a given audio port.
+    virtual status_t getAudioPort(struct audio_port *port) = 0;
+
+    // Set audio port configuration.
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0;
+
+    virtual status_t dump(int fd) = 0;
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    DeviceHalInterface() {}
+
+    // The destructor automatically closes the device.
+    virtual ~DeviceHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICE_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/DevicesFactoryHalInterface.h b/media/libaudiohal/include/DevicesFactoryHalInterface.h
new file mode 100644
index 0000000..14af384
--- /dev/null
+++ b/media/libaudiohal/include/DevicesFactoryHalInterface.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H
+
+#include <media/audiohal/DeviceHalInterface.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class DevicesFactoryHalInterface : public RefBase
+{
+  public:
+    // Opens a device with the specified name. To close the device, it is
+    // necessary to release references to the returned object.
+    virtual status_t openDevice(const char *name, sp<DeviceHalInterface> *device) = 0;
+
+    static sp<DevicesFactoryHalInterface> create();
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    DevicesFactoryHalInterface() {}
+
+    virtual ~DevicesFactoryHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/EffectBufferHalInterface.h b/media/libaudiohal/include/EffectBufferHalInterface.h
new file mode 100644
index 0000000..e862f6e
--- /dev/null
+++ b/media/libaudiohal/include/EffectBufferHalInterface.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_BUFFER_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_EFFECT_BUFFER_HAL_INTERFACE_H
+
+#include <system/audio_effect.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+// Abstraction for an audio buffer. It may be a "mirror" for
+// a buffer that the effect chain doesn't own, or a buffer owned by
+// the effect chain.
+class EffectBufferHalInterface : public RefBase
+{
+  public:
+    virtual audio_buffer_t* audioBuffer() = 0;
+    virtual void* externalData() const = 0;
+    // To be used when interacting with the code that doesn't know about
+    // "mirrored" buffers.
+    virtual void* ptr() {
+        return externalData() != nullptr ? externalData() : audioBuffer()->raw;
+    }
+
+    virtual void setExternalData(void* external) = 0;
+    virtual void setFrameCount(size_t frameCount) = 0;
+    virtual bool checkFrameCountChange() = 0;  // returns whether frame count has been updated
+                                               // since the last call to this method
+
+    virtual void update() = 0;  // copies data from the external buffer, noop for allocated buffers
+    virtual void commit() = 0;  // copies data to the external buffer, noop for allocated buffers
+    virtual void update(size_t size) = 0;  // copies partial data from external buffer
+    virtual void commit(size_t size) = 0;  // copies partial data to external buffer
+
+    static status_t allocate(size_t size, sp<EffectBufferHalInterface>* buffer);
+    static status_t mirror(void* external, size_t size, sp<EffectBufferHalInterface>* buffer);
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    EffectBufferHalInterface() {}
+
+    virtual ~EffectBufferHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_BUFFER_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/EffectHalInterface.h b/media/libaudiohal/include/EffectHalInterface.h
new file mode 100644
index 0000000..92622aa
--- /dev/null
+++ b/media/libaudiohal/include/EffectHalInterface.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_EFFECT_HAL_INTERFACE_H
+
+#include <media/audiohal/EffectBufferHalInterface.h>
+#include <system/audio_effect.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class EffectHalInterface : public RefBase
+{
+  public:
+    // Set the input buffer.
+    virtual status_t setInBuffer(const sp<EffectBufferHalInterface>& buffer) = 0;
+
+    // Set the output buffer.
+    virtual status_t setOutBuffer(const sp<EffectBufferHalInterface>& buffer) = 0;
+
+    // Effect process function. Takes input samples as specified
+    // in input buffer descriptor and output processed samples as specified
+    // in output buffer descriptor.
+    virtual status_t process() = 0;
+
+    // Process reverse stream function. This function is used to pass
+    // a reference stream to the effect engine.
+    virtual status_t processReverse() = 0;
+
+    // Send a command and receive a response to/from effect engine.
+    virtual status_t command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+            uint32_t *replySize, void *pReplyData) = 0;
+
+    // Returns the effect descriptor.
+    virtual status_t getDescriptor(effect_descriptor_t *pDescriptor) = 0;
+
+    // Free resources on the remote side.
+    virtual status_t close() = 0;
+
+    // Whether it's a local implementation.
+    virtual bool isLocal() const = 0;
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    EffectHalInterface() {}
+
+    // The destructor automatically releases the effect.
+    virtual ~EffectHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/EffectsFactoryHalInterface.h b/media/libaudiohal/include/EffectsFactoryHalInterface.h
new file mode 100644
index 0000000..a616e86
--- /dev/null
+++ b/media/libaudiohal/include/EffectsFactoryHalInterface.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
+
+#include <media/audiohal/EffectHalInterface.h>
+#include <system/audio_effect.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class EffectsFactoryHalInterface : public RefBase
+{
+  public:
+    // Returns the number of different effects in all loaded libraries.
+    virtual status_t queryNumberEffects(uint32_t *pNumEffects) = 0;
+
+    // Returns a descriptor of the next available effect.
+    virtual status_t getDescriptor(uint32_t index,
+            effect_descriptor_t *pDescriptor) = 0;
+
+    virtual status_t getDescriptor(const effect_uuid_t *pEffectUuid,
+            effect_descriptor_t *pDescriptor) = 0;
+
+    // Creates an effect engine of the specified type.
+    // To release the effect engine, it is necessary to release references
+    // to the returned effect object.
+    virtual status_t createEffect(const effect_uuid_t *pEffectUuid,
+            int32_t sessionId, int32_t ioId,
+            sp<EffectHalInterface> *effect) = 0;
+
+    virtual status_t dumpEffects(int fd) = 0;
+
+    static sp<EffectsFactoryHalInterface> create();
+
+    // Helper function to compare effect uuid to EFFECT_UUID_NULL.
+    static bool isNullUuid(const effect_uuid_t *pEffectUuid);
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    EffectsFactoryHalInterface() {}
+
+    virtual ~EffectsFactoryHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/StreamHalInterface.h b/media/libaudiohal/include/StreamHalInterface.h
new file mode 100644
index 0000000..7419c34
--- /dev/null
+++ b/media/libaudiohal/include/StreamHalInterface.h
@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_STREAM_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_STREAM_HAL_INTERFACE_H
+
+#include <media/audiohal/EffectHalInterface.h>
+#include <system/audio.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+
+namespace android {
+
+class StreamHalInterface : public virtual RefBase
+{
+  public:
+    // Return the sampling rate in Hz - eg. 44100.
+    virtual status_t getSampleRate(uint32_t *rate) = 0;
+
+    // Return size of input/output buffer in bytes for this stream - eg. 4800.
+    virtual status_t getBufferSize(size_t *size) = 0;
+
+    // Return the channel mask.
+    virtual status_t getChannelMask(audio_channel_mask_t *mask) = 0;
+
+    // Return the audio format - e.g. AUDIO_FORMAT_PCM_16_BIT.
+    virtual status_t getFormat(audio_format_t *format) = 0;
+
+    // Convenience method.
+    virtual status_t getAudioProperties(
+            uint32_t *sampleRate, audio_channel_mask_t *mask, audio_format_t *format) = 0;
+
+    // Set audio stream parameters.
+    virtual status_t setParameters(const String8& kvPairs) = 0;
+
+    // Get audio stream parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values) = 0;
+
+    // Return the frame size (number of bytes per sample) of a stream.
+    virtual status_t getFrameSize(size_t *size) = 0;
+
+    // Add or remove the effect on the stream.
+    virtual status_t addEffect(sp<EffectHalInterface> effect) = 0;
+    virtual status_t removeEffect(sp<EffectHalInterface> effect) = 0;
+
+    // Put the audio hardware input/output into standby mode.
+    virtual status_t standby() = 0;
+
+    virtual status_t dump(int fd) = 0;
+
+    // Start a stream operating in mmap mode.
+    virtual status_t start() = 0;
+
+    // Stop a stream operating in mmap mode.
+    virtual status_t stop() = 0;
+
+    // Retrieve information on the data buffer in mmap mode.
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info) = 0;
+
+    // Get current read/write position in the mmap buffer
+    virtual status_t getMmapPosition(struct audio_mmap_position *position) = 0;
+
+    // Set the priority of the thread that interacts with the HAL
+    // (must match the priority of the audioflinger's thread that calls 'read' / 'write')
+    virtual status_t setHalThreadPriority(int priority) = 0;
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    StreamHalInterface() {}
+
+    // The destructor automatically closes the stream.
+    virtual ~StreamHalInterface() {}
+};
+
+class StreamOutHalInterfaceCallback : public virtual RefBase {
+  public:
+    virtual void onWriteReady() {}
+    virtual void onDrainReady() {}
+    virtual void onError() {}
+
+  protected:
+    StreamOutHalInterfaceCallback() {}
+    virtual ~StreamOutHalInterfaceCallback() {}
+};
+
+class StreamOutHalInterface : public virtual StreamHalInterface {
+  public:
+    // Return the audio hardware driver estimated latency in milliseconds.
+    virtual status_t getLatency(uint32_t *latency) = 0;
+
+    // Use this method in situations where audio mixing is done in the hardware.
+    virtual status_t setVolume(float left, float right) = 0;
+
+    // Write audio buffer to driver.
+    virtual status_t write(const void *buffer, size_t bytes, size_t *written) = 0;
+
+    // Return the number of audio frames written by the audio dsp to DAC since
+    // the output has exited standby.
+    virtual status_t getRenderPosition(uint32_t *dspFrames) = 0;
+
+    // Get the local time at which the next write to the audio driver will be presented.
+    virtual status_t getNextWriteTimestamp(int64_t *timestamp) = 0;
+
+    // Set the callback for notifying completion of non-blocking write and drain.
+    // The callback must be owned by someone else. The output stream does not own it
+    // to avoid strong pointer loops.
+    virtual status_t setCallback(wp<StreamOutHalInterfaceCallback> callback) = 0;
+
+    // Returns whether pause and resume operations are supported.
+    virtual status_t supportsPauseAndResume(bool *supportsPause, bool *supportsResume) = 0;
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t pause() = 0;
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t resume() = 0;
+
+    // Returns whether drain operation is supported.
+    virtual status_t supportsDrain(bool *supportsDrain) = 0;
+
+    // Requests notification when data buffered by the driver/hardware has been played.
+    virtual status_t drain(bool earlyNotify) = 0;
+
+    // Notifies to the audio driver to flush the queued data.
+    virtual status_t flush() = 0;
+
+    // Return a recent count of the number of audio frames presented to an external observer.
+    virtual status_t getPresentationPosition(uint64_t *frames, struct timespec *timestamp) = 0;
+
+  protected:
+    virtual ~StreamOutHalInterface() {}
+};
+
+class StreamInHalInterface : public virtual StreamHalInterface {
+  public:
+    // Set the input gain for the audio driver.
+    virtual status_t setGain(float gain) = 0;
+
+    // Read audio buffer in from driver.
+    virtual status_t read(void *buffer, size_t bytes, size_t *read) = 0;
+
+    // Return the amount of input frames lost in the audio driver.
+    virtual status_t getInputFramesLost(uint32_t *framesLost) = 0;
+
+    // Return a recent count of the number of audio frames received and
+    // the clock time associated with that frame count.
+    virtual status_t getCapturePosition(int64_t *frames, int64_t *time) = 0;
+
+  protected:
+    virtual ~StreamInHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_STREAM_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/hidl/HalDeathHandler.h b/media/libaudiohal/include/hidl/HalDeathHandler.h
new file mode 100644
index 0000000..c9b7084
--- /dev/null
+++ b/media/libaudiohal/include/hidl/HalDeathHandler.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_HIDL_HAL_DEATH_HANDLER_H
+#define ANDROID_HARDWARE_HIDL_HAL_DEATH_HANDLER_H
+
+#include <functional>
+#include <mutex>
+#include <unordered_map>
+
+#include <hidl/HidlSupport.h>
+#include <utils/Singleton.h>
+
+using android::hardware::hidl_death_recipient;
+using android::hidl::base::V1_0::IBase;
+
+namespace android {
+
+class HalDeathHandler : public hidl_death_recipient, private Singleton<HalDeathHandler> {
+  public:
+    typedef std::function<void()> AtExitHandler;
+
+    // Note that the exit handler gets called using a thread from
+    // RPC threadpool, thus it needs to be thread-safe.
+    void registerAtExitHandler(void* cookie, AtExitHandler handler);
+    void unregisterAtExitHandler(void* cookie);
+
+    // hidl_death_recipient
+    virtual void serviceDied(uint64_t cookie, const wp<IBase>& who);
+
+    // Used both for (un)registering handlers, and for passing to
+    // '(un)linkToDeath'.
+    static sp<HalDeathHandler> getInstance();
+
+  private:
+    friend class Singleton<HalDeathHandler>;
+    typedef std::unordered_map<void*, AtExitHandler> Handlers;
+
+    HalDeathHandler();
+    virtual ~HalDeathHandler();
+
+    sp<HalDeathHandler> mSelf;  // Allows the singleton instance to live forever.
+    std::mutex mHandlersLock;
+    Handlers mHandlers;
+};
+
+}  // namespace android
+
+#endif // ANDROID_HARDWARE_HIDL_HAL_DEATH_HANDLER_H
diff --git a/media/libaudioprocessing/Android.mk b/media/libaudioprocessing/Android.mk
new file mode 100644
index 0000000..c850984
--- /dev/null
+++ b/media/libaudioprocessing/Android.mk
@@ -0,0 +1,39 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    AudioMixer.cpp.arm \
+    AudioResampler.cpp.arm \
+    AudioResamplerCubic.cpp.arm \
+    AudioResamplerSinc.cpp.arm \
+    AudioResamplerDyn.cpp.arm \
+    BufferProviders.cpp \
+    RecordBufferConverter.cpp \
+
+LOCAL_C_INCLUDES := \
+    $(TOP) \
+    $(call include-path-for, audio-utils) \
+    $(LOCAL_PATH)/include \
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+
+LOCAL_SHARED_LIBRARIES := \
+    libaudiohal \
+    libaudioutils \
+    libcutils \
+    liblog \
+    libnbaio \
+    libsonic \
+    libutils \
+
+LOCAL_MODULE := libaudioprocessing
+
+LOCAL_CFLAGS := -Werror -Wall
+
+# uncomment to disable NEON on architectures that actually do support NEON, for benchmarking
+#LOCAL_CFLAGS += -DUSE_NEON=false
+
+include $(BUILD_SHARED_LIBRARY)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/media/libaudioprocessing/AudioMixer.cpp b/media/libaudioprocessing/AudioMixer.cpp
new file mode 100644
index 0000000..05b726a
--- /dev/null
+++ b/media/libaudioprocessing/AudioMixer.cpp
@@ -0,0 +1,2091 @@
+/*
+**
+** Copyright 2007, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#define LOG_TAG "AudioMixer"
+//#define LOG_NDEBUG 0
+
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <math.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/Log.h>
+
+#include <cutils/bitops.h>
+#include <cutils/compiler.h>
+#include <utils/Debug.h>
+
+#include <system/audio.h>
+
+#include <audio_utils/primitives.h>
+#include <audio_utils/format.h>
+#include <media/AudioMixer.h>
+
+#include "AudioMixerOps.h"
+
+// The FCC_2 macro refers to the Fixed Channel Count of 2 for the legacy integer mixer.
+#ifndef FCC_2
+#define FCC_2 2
+#endif
+
+// Look for MONO_HACK for any Mono hack involving legacy mono channel to
+// stereo channel conversion.
+
+/* VERY_VERY_VERBOSE_LOGGING will show exactly which process hook and track hook is
+ * being used. This is a considerable amount of log spam, so don't enable unless you
+ * are verifying the hook based code.
+ */
+//#define VERY_VERY_VERBOSE_LOGGING
+#ifdef VERY_VERY_VERBOSE_LOGGING
+#define ALOGVV ALOGV
+//define ALOGVV printf  // for test-mixer.cpp
+#else
+#define ALOGVV(a...) do { } while (0)
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
+#endif
+
+// TODO: Move these macro/inlines to a header file.
+template <typename T>
+static inline
+T max(const T& x, const T& y) {
+    return x > y ? x : y;
+}
+
+// Set kUseNewMixer to true to use the new mixer engine always. Otherwise the
+// original code will be used for stereo sinks, the new mixer for multichannel.
+static const bool kUseNewMixer = true;
+
+// Set kUseFloat to true to allow floating input into the mixer engine.
+// If kUseNewMixer is false, this is ignored or may be overridden internally
+// because of downmix/upmix support.
+static const bool kUseFloat = true;
+
+// Set to default copy buffer size in frames for input processing.
+static const size_t kCopyBufferFrameCount = 256;
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+template <typename T>
+T min(const T& a, const T& b)
+{
+    return a < b ? a : b;
+}
+
+// ----------------------------------------------------------------------------
+
+// Ensure mConfiguredNames bitmask is initialized properly on all architectures.
+// The value of 1 << x is undefined in C when x >= 32.
+
+AudioMixer::AudioMixer(size_t frameCount, uint32_t sampleRate, uint32_t maxNumTracks)
+    :   mTrackNames(0), mConfiguredNames((maxNumTracks >= 32 ? 0 : 1 << maxNumTracks) - 1),
+        mSampleRate(sampleRate)
+{
+    ALOG_ASSERT(maxNumTracks <= MAX_NUM_TRACKS, "maxNumTracks %u > MAX_NUM_TRACKS %u",
+            maxNumTracks, MAX_NUM_TRACKS);
+
+    // AudioMixer is not yet capable of more than 32 active track inputs
+    ALOG_ASSERT(32 >= MAX_NUM_TRACKS, "bad MAX_NUM_TRACKS %d", MAX_NUM_TRACKS);
+
+    pthread_once(&sOnceControl, &sInitRoutine);
+
+    mState.enabledTracks= 0;
+    mState.needsChanged = 0;
+    mState.frameCount   = frameCount;
+    mState.hook         = process__nop;
+    mState.outputTemp   = NULL;
+    mState.resampleTemp = NULL;
+    mState.mLog         = &mDummyLog;
+    // mState.reserved
+
+    // FIXME Most of the following initialization is probably redundant since
+    // tracks[i] should only be referenced if (mTrackNames & (1 << i)) != 0
+    // and mTrackNames is initially 0.  However, leave it here until that's verified.
+    track_t* t = mState.tracks;
+    for (unsigned i=0 ; i < MAX_NUM_TRACKS ; i++) {
+        t->resampler = NULL;
+        t->downmixerBufferProvider = NULL;
+        t->mReformatBufferProvider = NULL;
+        t->mTimestretchBufferProvider = NULL;
+        t++;
+    }
+
+}
+
+AudioMixer::~AudioMixer()
+{
+    track_t* t = mState.tracks;
+    for (unsigned i=0 ; i < MAX_NUM_TRACKS ; i++) {
+        delete t->resampler;
+        delete t->downmixerBufferProvider;
+        delete t->mReformatBufferProvider;
+        delete t->mTimestretchBufferProvider;
+        t++;
+    }
+    delete [] mState.outputTemp;
+    delete [] mState.resampleTemp;
+}
+
+void AudioMixer::setLog(NBLog::Writer *log)
+{
+    mState.mLog = log;
+}
+
+static inline audio_format_t selectMixerInFormat(audio_format_t inputFormat __unused) {
+    return kUseFloat && kUseNewMixer ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
+}
+
+int AudioMixer::getTrackName(audio_channel_mask_t channelMask,
+        audio_format_t format, int sessionId)
+{
+    if (!isValidPcmTrackFormat(format)) {
+        ALOGE("AudioMixer::getTrackName invalid format (%#x)", format);
+        return -1;
+    }
+    uint32_t names = (~mTrackNames) & mConfiguredNames;
+    if (names != 0) {
+        int n = __builtin_ctz(names);
+        ALOGV("add track (%d)", n);
+        // assume default parameters for the track, except where noted below
+        track_t* t = &mState.tracks[n];
+        t->needs = 0;
+
+        // Integer volume.
+        // Currently integer volume is kept for the legacy integer mixer.
+        // Will be removed when the legacy mixer path is removed.
+        t->volume[0] = UNITY_GAIN_INT;
+        t->volume[1] = UNITY_GAIN_INT;
+        t->prevVolume[0] = UNITY_GAIN_INT << 16;
+        t->prevVolume[1] = UNITY_GAIN_INT << 16;
+        t->volumeInc[0] = 0;
+        t->volumeInc[1] = 0;
+        t->auxLevel = 0;
+        t->auxInc = 0;
+        t->prevAuxLevel = 0;
+
+        // Floating point volume.
+        t->mVolume[0] = UNITY_GAIN_FLOAT;
+        t->mVolume[1] = UNITY_GAIN_FLOAT;
+        t->mPrevVolume[0] = UNITY_GAIN_FLOAT;
+        t->mPrevVolume[1] = UNITY_GAIN_FLOAT;
+        t->mVolumeInc[0] = 0.;
+        t->mVolumeInc[1] = 0.;
+        t->mAuxLevel = 0.;
+        t->mAuxInc = 0.;
+        t->mPrevAuxLevel = 0.;
+
+        // no initialization needed
+        // t->frameCount
+        t->channelCount = audio_channel_count_from_out_mask(channelMask);
+        t->enabled = false;
+        ALOGV_IF(audio_channel_mask_get_bits(channelMask) != AUDIO_CHANNEL_OUT_STEREO,
+                "Non-stereo channel mask: %d\n", channelMask);
+        t->channelMask = channelMask;
+        t->sessionId = sessionId;
+        // setBufferProvider(name, AudioBufferProvider *) is required before enable(name)
+        t->bufferProvider = NULL;
+        t->buffer.raw = NULL;
+        // no initialization needed
+        // t->buffer.frameCount
+        t->hook = NULL;
+        t->in = NULL;
+        t->resampler = NULL;
+        t->sampleRate = mSampleRate;
+        // setParameter(name, TRACK, MAIN_BUFFER, mixBuffer) is required before enable(name)
+        t->mainBuffer = NULL;
+        t->auxBuffer = NULL;
+        t->mInputBufferProvider = NULL;
+        t->mReformatBufferProvider = NULL;
+        t->downmixerBufferProvider = NULL;
+        t->mPostDownmixReformatBufferProvider = NULL;
+        t->mTimestretchBufferProvider = NULL;
+        t->mMixerFormat = AUDIO_FORMAT_PCM_16_BIT;
+        t->mFormat = format;
+        t->mMixerInFormat = selectMixerInFormat(format);
+        t->mDownmixRequiresFormat = AUDIO_FORMAT_INVALID; // no format required
+        t->mMixerChannelMask = audio_channel_mask_from_representation_and_bits(
+                AUDIO_CHANNEL_REPRESENTATION_POSITION, AUDIO_CHANNEL_OUT_STEREO);
+        t->mMixerChannelCount = audio_channel_count_from_out_mask(t->mMixerChannelMask);
+        t->mPlaybackRate = AUDIO_PLAYBACK_RATE_DEFAULT;
+        // Check the downmixing (or upmixing) requirements.
+        status_t status = t->prepareForDownmix();
+        if (status != OK) {
+            ALOGE("AudioMixer::getTrackName invalid channelMask (%#x)", channelMask);
+            return -1;
+        }
+        // prepareForDownmix() may change mDownmixRequiresFormat
+        ALOGVV("mMixerFormat:%#x  mMixerInFormat:%#x\n", t->mMixerFormat, t->mMixerInFormat);
+        t->prepareForReformat();
+        mTrackNames |= 1 << n;
+        return TRACK0 + n;
+    }
+    ALOGE("AudioMixer::getTrackName out of available tracks");
+    return -1;
+}
+
+void AudioMixer::invalidateState(uint32_t mask)
+{
+    if (mask != 0) {
+        mState.needsChanged |= mask;
+        mState.hook = process__validate;
+    }
+ }
+
+// Called when channel masks have changed for a track name
+// TODO: Fix DownmixerBufferProvider not to (possibly) change mixer input format,
+// which will simplify this logic.
+bool AudioMixer::setChannelMasks(int name,
+        audio_channel_mask_t trackChannelMask, audio_channel_mask_t mixerChannelMask) {
+    track_t &track = mState.tracks[name];
+
+    if (trackChannelMask == track.channelMask
+            && mixerChannelMask == track.mMixerChannelMask) {
+        return false;  // no need to change
+    }
+    // always recompute for both channel masks even if only one has changed.
+    const uint32_t trackChannelCount = audio_channel_count_from_out_mask(trackChannelMask);
+    const uint32_t mixerChannelCount = audio_channel_count_from_out_mask(mixerChannelMask);
+    const bool mixerChannelCountChanged = track.mMixerChannelCount != mixerChannelCount;
+
+    ALOG_ASSERT((trackChannelCount <= MAX_NUM_CHANNELS_TO_DOWNMIX)
+            && trackChannelCount
+            && mixerChannelCount);
+    track.channelMask = trackChannelMask;
+    track.channelCount = trackChannelCount;
+    track.mMixerChannelMask = mixerChannelMask;
+    track.mMixerChannelCount = mixerChannelCount;
+
+    // channel masks have changed, does this track need a downmixer?
+    // update to try using our desired format (if we aren't already using it)
+    const audio_format_t prevDownmixerFormat = track.mDownmixRequiresFormat;
+    const status_t status = mState.tracks[name].prepareForDownmix();
+    ALOGE_IF(status != OK,
+            "prepareForDownmix error %d, track channel mask %#x, mixer channel mask %#x",
+            status, track.channelMask, track.mMixerChannelMask);
+
+    if (prevDownmixerFormat != track.mDownmixRequiresFormat) {
+        track.prepareForReformat(); // because of downmixer, track format may change!
+    }
+
+    if (track.resampler && mixerChannelCountChanged) {
+        // resampler channels may have changed.
+        const uint32_t resetToSampleRate = track.sampleRate;
+        delete track.resampler;
+        track.resampler = NULL;
+        track.sampleRate = mSampleRate; // without resampler, track rate is device sample rate.
+        // recreate the resampler with updated format, channels, saved sampleRate.
+        track.setResampler(resetToSampleRate /*trackSampleRate*/, mSampleRate /*devSampleRate*/);
+    }
+    return true;
+}
+
+void AudioMixer::track_t::unprepareForDownmix() {
+    ALOGV("AudioMixer::unprepareForDownmix(%p)", this);
+
+    if (mPostDownmixReformatBufferProvider != nullptr) {
+        // release any buffers held by the mPostDownmixReformatBufferProvider
+        // before deallocating the downmixerBufferProvider.
+        mPostDownmixReformatBufferProvider->reset();
+    }
+
+    mDownmixRequiresFormat = AUDIO_FORMAT_INVALID;
+    if (downmixerBufferProvider != NULL) {
+        // this track had previously been configured with a downmixer, delete it
+        ALOGV(" deleting old downmixer");
+        delete downmixerBufferProvider;
+        downmixerBufferProvider = NULL;
+        reconfigureBufferProviders();
+    } else {
+        ALOGV(" nothing to do, no downmixer to delete");
+    }
+}
+
+status_t AudioMixer::track_t::prepareForDownmix()
+{
+    ALOGV("AudioMixer::prepareForDownmix(%p) with mask 0x%x",
+            this, channelMask);
+
+    // discard the previous downmixer if there was one
+    unprepareForDownmix();
+    // MONO_HACK Only remix (upmix or downmix) if the track and mixer/device channel masks
+    // are not the same and not handled internally, as mono -> stereo currently is.
+    if (channelMask == mMixerChannelMask
+            || (channelMask == AUDIO_CHANNEL_OUT_MONO
+                    && mMixerChannelMask == AUDIO_CHANNEL_OUT_STEREO)) {
+        return NO_ERROR;
+    }
+    // DownmixerBufferProvider is only used for position masks.
+    if (audio_channel_mask_get_representation(channelMask)
+                == AUDIO_CHANNEL_REPRESENTATION_POSITION
+            && DownmixerBufferProvider::isMultichannelCapable()) {
+        DownmixerBufferProvider* pDbp = new DownmixerBufferProvider(channelMask,
+                mMixerChannelMask,
+                AUDIO_FORMAT_PCM_16_BIT /* TODO: use mMixerInFormat, now only PCM 16 */,
+                sampleRate, sessionId, kCopyBufferFrameCount);
+
+        if (pDbp->isValid()) { // if constructor completed properly
+            mDownmixRequiresFormat = AUDIO_FORMAT_PCM_16_BIT; // PCM 16 bit required for downmix
+            downmixerBufferProvider = pDbp;
+            reconfigureBufferProviders();
+            return NO_ERROR;
+        }
+        delete pDbp;
+    }
+
+    // Effect downmixer does not accept the channel conversion.  Let's use our remixer.
+    RemixBufferProvider* pRbp = new RemixBufferProvider(channelMask,
+            mMixerChannelMask, mMixerInFormat, kCopyBufferFrameCount);
+    // Remix always finds a conversion whereas Downmixer effect above may fail.
+    downmixerBufferProvider = pRbp;
+    reconfigureBufferProviders();
+    return NO_ERROR;
+}
+
+void AudioMixer::track_t::unprepareForReformat() {
+    ALOGV("AudioMixer::unprepareForReformat(%p)", this);
+    bool requiresReconfigure = false;
+    if (mReformatBufferProvider != NULL) {
+        delete mReformatBufferProvider;
+        mReformatBufferProvider = NULL;
+        requiresReconfigure = true;
+    }
+    if (mPostDownmixReformatBufferProvider != NULL) {
+        delete mPostDownmixReformatBufferProvider;
+        mPostDownmixReformatBufferProvider = NULL;
+        requiresReconfigure = true;
+    }
+    if (requiresReconfigure) {
+        reconfigureBufferProviders();
+    }
+}
+
+status_t AudioMixer::track_t::prepareForReformat()
+{
+    ALOGV("AudioMixer::prepareForReformat(%p) with format %#x", this, mFormat);
+    // discard previous reformatters
+    unprepareForReformat();
+    // only configure reformatters as needed
+    const audio_format_t targetFormat = mDownmixRequiresFormat != AUDIO_FORMAT_INVALID
+            ? mDownmixRequiresFormat : mMixerInFormat;
+    bool requiresReconfigure = false;
+    if (mFormat != targetFormat) {
+        mReformatBufferProvider = new ReformatBufferProvider(
+                audio_channel_count_from_out_mask(channelMask),
+                mFormat,
+                targetFormat,
+                kCopyBufferFrameCount);
+        requiresReconfigure = true;
+    }
+    if (targetFormat != mMixerInFormat) {
+        mPostDownmixReformatBufferProvider = new ReformatBufferProvider(
+                audio_channel_count_from_out_mask(mMixerChannelMask),
+                targetFormat,
+                mMixerInFormat,
+                kCopyBufferFrameCount);
+        requiresReconfigure = true;
+    }
+    if (requiresReconfigure) {
+        reconfigureBufferProviders();
+    }
+    return NO_ERROR;
+}
+
+void AudioMixer::track_t::reconfigureBufferProviders()
+{
+    bufferProvider = mInputBufferProvider;
+    if (mReformatBufferProvider) {
+        mReformatBufferProvider->setBufferProvider(bufferProvider);
+        bufferProvider = mReformatBufferProvider;
+    }
+    if (downmixerBufferProvider) {
+        downmixerBufferProvider->setBufferProvider(bufferProvider);
+        bufferProvider = downmixerBufferProvider;
+    }
+    if (mPostDownmixReformatBufferProvider) {
+        mPostDownmixReformatBufferProvider->setBufferProvider(bufferProvider);
+        bufferProvider = mPostDownmixReformatBufferProvider;
+    }
+    if (mTimestretchBufferProvider) {
+        mTimestretchBufferProvider->setBufferProvider(bufferProvider);
+        bufferProvider = mTimestretchBufferProvider;
+    }
+}
+
+void AudioMixer::deleteTrackName(int name)
+{
+    ALOGV("AudioMixer::deleteTrackName(%d)", name);
+    name -= TRACK0;
+    LOG_ALWAYS_FATAL_IF(name < 0 || name >= (int)MAX_NUM_TRACKS, "bad track name %d", name);
+    ALOGV("deleteTrackName(%d)", name);
+    track_t& track(mState.tracks[ name ]);
+    if (track.enabled) {
+        track.enabled = false;
+        invalidateState(1<<name);
+    }
+    // delete the resampler
+    delete track.resampler;
+    track.resampler = NULL;
+    // delete the downmixer
+    mState.tracks[name].unprepareForDownmix();
+    // delete the reformatter
+    mState.tracks[name].unprepareForReformat();
+    // delete the timestretch provider
+    delete track.mTimestretchBufferProvider;
+    track.mTimestretchBufferProvider = NULL;
+    mTrackNames &= ~(1<<name);
+}
+
+void AudioMixer::enable(int name)
+{
+    name -= TRACK0;
+    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
+    track_t& track = mState.tracks[name];
+
+    if (!track.enabled) {
+        track.enabled = true;
+        ALOGV("enable(%d)", name);
+        invalidateState(1 << name);
+    }
+}
+
+void AudioMixer::disable(int name)
+{
+    name -= TRACK0;
+    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
+    track_t& track = mState.tracks[name];
+
+    if (track.enabled) {
+        track.enabled = false;
+        ALOGV("disable(%d)", name);
+        invalidateState(1 << name);
+    }
+}
+
+/* Sets the volume ramp variables for the AudioMixer.
+ *
+ * The volume ramp variables are used to transition from the previous
+ * volume to the set volume.  ramp controls the duration of the transition.
+ * Its value is typically one state framecount period, but may also be 0,
+ * meaning "immediate."
+ *
+ * FIXME: 1) Volume ramp is enabled only if there is a nonzero integer increment
+ * even if there is a nonzero floating point increment (in that case, the volume
+ * change is immediate).  This restriction should be changed when the legacy mixer
+ * is removed (see #2).
+ * FIXME: 2) Integer volume variables are used for Legacy mixing and should be removed
+ * when no longer needed.
+ *
+ * @param newVolume set volume target in floating point [0.0, 1.0].
+ * @param ramp number of frames to increment over. if ramp is 0, the volume
+ * should be set immediately.  Currently ramp should not exceed 65535 (frames).
+ * @param pIntSetVolume pointer to the U4.12 integer target volume, set on return.
+ * @param pIntPrevVolume pointer to the U4.28 integer previous volume, set on return.
+ * @param pIntVolumeInc pointer to the U4.28 increment per output audio frame, set on return.
+ * @param pSetVolume pointer to the float target volume, set on return.
+ * @param pPrevVolume pointer to the float previous volume, set on return.
+ * @param pVolumeInc pointer to the float increment per output audio frame, set on return.
+ * @return true if the volume has changed, false if volume is same.
+ */
+static inline bool setVolumeRampVariables(float newVolume, int32_t ramp,
+        int16_t *pIntSetVolume, int32_t *pIntPrevVolume, int32_t *pIntVolumeInc,
+        float *pSetVolume, float *pPrevVolume, float *pVolumeInc) {
+    // check floating point volume to see if it is identical to the previously
+    // set volume.
+    // We do not use a tolerance here (and reject changes too small)
+    // as it may be confusing to use a different value than the one set.
+    // If the resulting volume is too small to ramp, it is a direct set of the volume.
+    if (newVolume == *pSetVolume) {
+        return false;
+    }
+    if (newVolume < 0) {
+        newVolume = 0; // should not have negative volumes
+    } else {
+        switch (fpclassify(newVolume)) {
+        case FP_SUBNORMAL:
+        case FP_NAN:
+            newVolume = 0;
+            break;
+        case FP_ZERO:
+            break; // zero volume is fine
+        case FP_INFINITE:
+            // Infinite volume could be handled consistently since
+            // floating point math saturates at infinities,
+            // but we limit volume to unity gain float.
+            // ramp = 0; break;
+            //
+            newVolume = AudioMixer::UNITY_GAIN_FLOAT;
+            break;
+        case FP_NORMAL:
+        default:
+            // Floating point does not have problems with overflow wrap
+            // that integer has.  However, we limit the volume to
+            // unity gain here.
+            // TODO: Revisit the volume limitation and perhaps parameterize.
+            if (newVolume > AudioMixer::UNITY_GAIN_FLOAT) {
+                newVolume = AudioMixer::UNITY_GAIN_FLOAT;
+            }
+            break;
+        }
+    }
+
+    // set floating point volume ramp
+    if (ramp != 0) {
+        // when the ramp completes, *pPrevVolume is set to *pSetVolume, so there
+        // is no computational mismatch; hence equality is checked here.
+        ALOGD_IF(*pPrevVolume != *pSetVolume, "previous float ramp hasn't finished,"
+                " prev:%f  set_to:%f", *pPrevVolume, *pSetVolume);
+        const float inc = (newVolume - *pPrevVolume) / ramp; // could be inf, nan, subnormal
+        const float maxv = max(newVolume, *pPrevVolume); // could be inf, cannot be nan, subnormal
+
+        if (isnormal(inc) // inc must be a normal number (no subnormals, infinite, nan)
+                && maxv + inc != maxv) { // inc must make forward progress
+            *pVolumeInc = inc;
+            // ramp is set now.
+            // Note: if newVolume is 0, then near the end of the ramp,
+            // it may be possible that the ramped volume may be subnormal or
+            // temporarily negative by a small amount or subnormal due to floating
+            // point inaccuracies.
+        } else {
+            ramp = 0; // ramp not allowed
+        }
+    }
+
+    // compute and check integer volume, no need to check negative values
+    // The integer volume is limited to "unity_gain" to avoid wrapping and other
+    // audio artifacts, so it never reaches the range limit of U4.28.
+    // We safely use signed 16 and 32 bit integers here.
+    const float scaledVolume = newVolume * AudioMixer::UNITY_GAIN_INT; // not neg, subnormal, nan
+    const int32_t intVolume = (scaledVolume >= (float)AudioMixer::UNITY_GAIN_INT) ?
+            AudioMixer::UNITY_GAIN_INT : (int32_t)scaledVolume;
+
+    // set integer volume ramp
+    if (ramp != 0) {
+        // integer volume is U4.12 (to use 16 bit multiplies), but ramping uses U4.28.
+        // when the ramp completes, *pIntPrevVolume is set to *pIntSetVolume << 16, so there
+        // is no computational mismatch; hence equality is checked here.
+        ALOGD_IF(*pIntPrevVolume != *pIntSetVolume << 16, "previous int ramp hasn't finished,"
+                " prev:%d  set_to:%d", *pIntPrevVolume, *pIntSetVolume << 16);
+        const int32_t inc = ((intVolume << 16) - *pIntPrevVolume) / ramp;
+
+        if (inc != 0) { // inc must make forward progress
+            *pIntVolumeInc = inc;
+        } else {
+            ramp = 0; // ramp not allowed
+        }
+    }
+
+    // if no ramp, or ramp not allowed, then clear float and integer increments
+    if (ramp == 0) {
+        *pVolumeInc = 0;
+        *pPrevVolume = newVolume;
+        *pIntVolumeInc = 0;
+        *pIntPrevVolume = intVolume << 16;
+    }
+    *pSetVolume = newVolume;
+    *pIntSetVolume = intVolume;
+    return true;
+}
+
+void AudioMixer::setParameter(int name, int target, int param, void *value)
+{
+    name -= TRACK0;
+    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
+    track_t& track = mState.tracks[name];
+
+    int valueInt = static_cast<int>(reinterpret_cast<uintptr_t>(value));
+    int32_t *valueBuf = reinterpret_cast<int32_t*>(value);
+
+    switch (target) {
+
+    case TRACK:
+        switch (param) {
+        case CHANNEL_MASK: {
+            const audio_channel_mask_t trackChannelMask =
+                static_cast<audio_channel_mask_t>(valueInt);
+            if (setChannelMasks(name, trackChannelMask, track.mMixerChannelMask)) {
+                ALOGV("setParameter(TRACK, CHANNEL_MASK, %x)", trackChannelMask);
+                invalidateState(1 << name);
+            }
+            } break;
+        case MAIN_BUFFER:
+            if (track.mainBuffer != valueBuf) {
+                track.mainBuffer = valueBuf;
+                ALOGV("setParameter(TRACK, MAIN_BUFFER, %p)", valueBuf);
+                invalidateState(1 << name);
+            }
+            break;
+        case AUX_BUFFER:
+            if (track.auxBuffer != valueBuf) {
+                track.auxBuffer = valueBuf;
+                ALOGV("setParameter(TRACK, AUX_BUFFER, %p)", valueBuf);
+                invalidateState(1 << name);
+            }
+            break;
+        case FORMAT: {
+            audio_format_t format = static_cast<audio_format_t>(valueInt);
+            if (track.mFormat != format) {
+                ALOG_ASSERT(audio_is_linear_pcm(format), "Invalid format %#x", format);
+                track.mFormat = format;
+                ALOGV("setParameter(TRACK, FORMAT, %#x)", format);
+                track.prepareForReformat();
+                invalidateState(1 << name);
+            }
+            } break;
+        // FIXME do we want to support setting the downmix type from AudioFlinger?
+        //         for a specific track? or per mixer?
+        /* case DOWNMIX_TYPE:
+            break          */
+        case MIXER_FORMAT: {
+            audio_format_t format = static_cast<audio_format_t>(valueInt);
+            if (track.mMixerFormat != format) {
+                track.mMixerFormat = format;
+                ALOGV("setParameter(TRACK, MIXER_FORMAT, %#x)", format);
+            }
+            } break;
+        case MIXER_CHANNEL_MASK: {
+            const audio_channel_mask_t mixerChannelMask =
+                    static_cast<audio_channel_mask_t>(valueInt);
+            if (setChannelMasks(name, track.channelMask, mixerChannelMask)) {
+                ALOGV("setParameter(TRACK, MIXER_CHANNEL_MASK, %#x)", mixerChannelMask);
+                invalidateState(1 << name);
+            }
+            } break;
+        default:
+            LOG_ALWAYS_FATAL("setParameter track: bad param %d", param);
+        }
+        break;
+
+    case RESAMPLE:
+        switch (param) {
+        case SAMPLE_RATE:
+            ALOG_ASSERT(valueInt > 0, "bad sample rate %d", valueInt);
+            if (track.setResampler(uint32_t(valueInt), mSampleRate)) {
+                ALOGV("setParameter(RESAMPLE, SAMPLE_RATE, %u)",
+                        uint32_t(valueInt));
+                invalidateState(1 << name);
+            }
+            break;
+        case RESET:
+            track.resetResampler();
+            invalidateState(1 << name);
+            break;
+        case REMOVE:
+            delete track.resampler;
+            track.resampler = NULL;
+            track.sampleRate = mSampleRate;
+            invalidateState(1 << name);
+            break;
+        default:
+            LOG_ALWAYS_FATAL("setParameter resample: bad param %d", param);
+        }
+        break;
+
+    case RAMP_VOLUME:
+    case VOLUME:
+        switch (param) {
+        case AUXLEVEL:
+            if (setVolumeRampVariables(*reinterpret_cast<float*>(value),
+                    target == RAMP_VOLUME ? mState.frameCount : 0,
+                    &track.auxLevel, &track.prevAuxLevel, &track.auxInc,
+                    &track.mAuxLevel, &track.mPrevAuxLevel, &track.mAuxInc)) {
+                ALOGV("setParameter(%s, AUXLEVEL: %04x)",
+                        target == VOLUME ? "VOLUME" : "RAMP_VOLUME", track.auxLevel);
+                invalidateState(1 << name);
+            }
+            break;
+        default:
+            if ((unsigned)param >= VOLUME0 && (unsigned)param < VOLUME0 + MAX_NUM_VOLUMES) {
+                if (setVolumeRampVariables(*reinterpret_cast<float*>(value),
+                        target == RAMP_VOLUME ? mState.frameCount : 0,
+                        &track.volume[param - VOLUME0], &track.prevVolume[param - VOLUME0],
+                        &track.volumeInc[param - VOLUME0],
+                        &track.mVolume[param - VOLUME0], &track.mPrevVolume[param - VOLUME0],
+                        &track.mVolumeInc[param - VOLUME0])) {
+                    ALOGV("setParameter(%s, VOLUME%d: %04x)",
+                            target == VOLUME ? "VOLUME" : "RAMP_VOLUME", param - VOLUME0,
+                                    track.volume[param - VOLUME0]);
+                    invalidateState(1 << name);
+                }
+            } else {
+                LOG_ALWAYS_FATAL("setParameter volume: bad param %d", param);
+            }
+        }
+        break;
+        case TIMESTRETCH:
+            switch (param) {
+            case PLAYBACK_RATE: {
+                const AudioPlaybackRate *playbackRate =
+                        reinterpret_cast<AudioPlaybackRate*>(value);
+                ALOGW_IF(!isAudioPlaybackRateValid(*playbackRate),
+                        "bad parameters speed %f, pitch %f",playbackRate->mSpeed,
+                        playbackRate->mPitch);
+                if (track.setPlaybackRate(*playbackRate)) {
+                    ALOGV("setParameter(TIMESTRETCH, PLAYBACK_RATE, STRETCH_MODE, FALLBACK_MODE "
+                            "%f %f %d %d",
+                            playbackRate->mSpeed,
+                            playbackRate->mPitch,
+                            playbackRate->mStretchMode,
+                            playbackRate->mFallbackMode);
+                    // invalidateState(1 << name);
+                }
+            } break;
+            default:
+                LOG_ALWAYS_FATAL("setParameter timestretch: bad param %d", param);
+            }
+            break;
+
+    default:
+        LOG_ALWAYS_FATAL("setParameter: bad target %d", target);
+    }
+}
+
+bool AudioMixer::track_t::setResampler(uint32_t trackSampleRate, uint32_t devSampleRate)
+{
+    if (trackSampleRate != devSampleRate || resampler != NULL) {
+        if (sampleRate != trackSampleRate) {
+            sampleRate = trackSampleRate;
+            if (resampler == NULL) {
+                ALOGV("Creating resampler from track %d Hz to device %d Hz",
+                        trackSampleRate, devSampleRate);
+                AudioResampler::src_quality quality;
+                // force lowest quality level resampler if use case isn't music or video
+                // FIXME this is flawed for dynamic sample rates, as we choose the resampler
+                // quality level based on the initial ratio, but that could change later.
+                // Should have a way to distinguish tracks with static ratios vs. dynamic ratios.
+                if (isMusicRate(trackSampleRate)) {
+                    quality = AudioResampler::DEFAULT_QUALITY;
+                } else {
+                    quality = AudioResampler::DYN_LOW_QUALITY;
+                }
+
+                // TODO: Remove MONO_HACK. Resampler sees #channels after the downmixer
+                // but if none exists, it is the channel count (1 for mono).
+                const int resamplerChannelCount = downmixerBufferProvider != NULL
+                        ? mMixerChannelCount : channelCount;
+                ALOGVV("Creating resampler:"
+                        " format(%#x) channels(%d) devSampleRate(%u) quality(%d)\n",
+                        mMixerInFormat, resamplerChannelCount, devSampleRate, quality);
+                resampler = AudioResampler::create(
+                        mMixerInFormat,
+                        resamplerChannelCount,
+                        devSampleRate, quality);
+            }
+            return true;
+        }
+    }
+    return false;
+}
+
+bool AudioMixer::track_t::setPlaybackRate(const AudioPlaybackRate &playbackRate)
+{
+    if ((mTimestretchBufferProvider == NULL &&
+            fabs(playbackRate.mSpeed - mPlaybackRate.mSpeed) < AUDIO_TIMESTRETCH_SPEED_MIN_DELTA &&
+            fabs(playbackRate.mPitch - mPlaybackRate.mPitch) < AUDIO_TIMESTRETCH_PITCH_MIN_DELTA) ||
+            isAudioPlaybackRateEqual(playbackRate, mPlaybackRate)) {
+        return false;
+    }
+    mPlaybackRate = playbackRate;
+    if (mTimestretchBufferProvider == NULL) {
+        // TODO: Remove MONO_HACK. Resampler sees #channels after the downmixer
+        // but if none exists, it is the channel count (1 for mono).
+        const int timestretchChannelCount = downmixerBufferProvider != NULL
+                ? mMixerChannelCount : channelCount;
+        mTimestretchBufferProvider = new TimestretchBufferProvider(timestretchChannelCount,
+                mMixerInFormat, sampleRate, playbackRate);
+        reconfigureBufferProviders();
+    } else {
+        reinterpret_cast<TimestretchBufferProvider*>(mTimestretchBufferProvider)
+                ->setPlaybackRate(playbackRate);
+    }
+    return true;
+}
+
+/* Checks to see if the volume ramp has completed and clears the increment
+ * variables appropriately.
+ *
+ * FIXME: There is code to handle int/float ramp variable switchover should it not
+ * complete within a mixer buffer processing call, but it is preferred to avoid switchover
+ * due to precision issues.  The switchover code is included for legacy code purposes
+ * and can be removed once the integer volume is removed.
+ *
+ * It is not sufficient to clear only the volumeInc integer variable because
+ * if one channel requires ramping, all channels are ramped.
+ *
+ * There is a bit of duplicated code here, but it keeps backward compatibility.
+ */
+inline void AudioMixer::track_t::adjustVolumeRamp(bool aux, bool useFloat)
+{
+    if (useFloat) {
+        for (uint32_t i = 0; i < MAX_NUM_VOLUMES; i++) {
+            if ((mVolumeInc[i] > 0 && mPrevVolume[i] + mVolumeInc[i] >= mVolume[i]) ||
+                     (mVolumeInc[i] < 0 && mPrevVolume[i] + mVolumeInc[i] <= mVolume[i])) {
+                volumeInc[i] = 0;
+                prevVolume[i] = volume[i] << 16;
+                mVolumeInc[i] = 0.;
+                mPrevVolume[i] = mVolume[i];
+            } else {
+                //ALOGV("ramp: %f %f %f", mVolume[i], mPrevVolume[i], mVolumeInc[i]);
+                prevVolume[i] = u4_28_from_float(mPrevVolume[i]);
+            }
+        }
+    } else {
+        for (uint32_t i = 0; i < MAX_NUM_VOLUMES; i++) {
+            if (((volumeInc[i]>0) && (((prevVolume[i]+volumeInc[i])>>16) >= volume[i])) ||
+                    ((volumeInc[i]<0) && (((prevVolume[i]+volumeInc[i])>>16) <= volume[i]))) {
+                volumeInc[i] = 0;
+                prevVolume[i] = volume[i] << 16;
+                mVolumeInc[i] = 0.;
+                mPrevVolume[i] = mVolume[i];
+            } else {
+                //ALOGV("ramp: %d %d %d", volume[i] << 16, prevVolume[i], volumeInc[i]);
+                mPrevVolume[i]  = float_from_u4_28(prevVolume[i]);
+            }
+        }
+    }
+    /* TODO: aux is always integer regardless of output buffer type */
+    if (aux) {
+        if (((auxInc>0) && (((prevAuxLevel+auxInc)>>16) >= auxLevel)) ||
+                ((auxInc<0) && (((prevAuxLevel+auxInc)>>16) <= auxLevel))) {
+            auxInc = 0;
+            prevAuxLevel = auxLevel << 16;
+            mAuxInc = 0.;
+            mPrevAuxLevel = mAuxLevel;
+        } else {
+            //ALOGV("aux ramp: %d %d %d", auxLevel << 16, prevAuxLevel, auxInc);
+        }
+    }
+}
+
+size_t AudioMixer::getUnreleasedFrames(int name) const
+{
+    name -= TRACK0;
+    if (uint32_t(name) < MAX_NUM_TRACKS) {
+        return mState.tracks[name].getUnreleasedFrames();
+    }
+    return 0;
+}
+
+void AudioMixer::setBufferProvider(int name, AudioBufferProvider* bufferProvider)
+{
+    name -= TRACK0;
+    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
+
+    if (mState.tracks[name].mInputBufferProvider == bufferProvider) {
+        return; // don't reset any buffer providers if identical.
+    }
+    if (mState.tracks[name].mReformatBufferProvider != NULL) {
+        mState.tracks[name].mReformatBufferProvider->reset();
+    } else if (mState.tracks[name].downmixerBufferProvider != NULL) {
+        mState.tracks[name].downmixerBufferProvider->reset();
+    } else if (mState.tracks[name].mPostDownmixReformatBufferProvider != NULL) {
+        mState.tracks[name].mPostDownmixReformatBufferProvider->reset();
+    } else if (mState.tracks[name].mTimestretchBufferProvider != NULL) {
+        mState.tracks[name].mTimestretchBufferProvider->reset();
+    }
+
+    mState.tracks[name].mInputBufferProvider = bufferProvider;
+    mState.tracks[name].reconfigureBufferProviders();
+}
+
+
+void AudioMixer::process()
+{
+    mState.hook(&mState);
+}
+
+
+void AudioMixer::process__validate(state_t* state)
+{
+    ALOGW_IF(!state->needsChanged,
+        "in process__validate() but nothing's invalid");
+
+    uint32_t changed = state->needsChanged;
+    state->needsChanged = 0; // clear the validation flag
+
+    // recompute which tracks are enabled / disabled
+    uint32_t enabled = 0;
+    uint32_t disabled = 0;
+    while (changed) {
+        const int i = 31 - __builtin_clz(changed);
+        const uint32_t mask = 1<<i;
+        changed &= ~mask;
+        track_t& t = state->tracks[i];
+        (t.enabled ? enabled : disabled) |= mask;
+    }
+    state->enabledTracks &= ~disabled;
+    state->enabledTracks |=  enabled;
+
+    // compute everything we need...
+    int countActiveTracks = 0;
+    // TODO: fix all16BitsStereNoResample logic to
+    // either properly handle muted tracks (it should ignore them)
+    // or remove altogether as an obsolete optimization.
+    bool all16BitsStereoNoResample = true;
+    bool resampling = false;
+    bool volumeRamp = false;
+    uint32_t en = state->enabledTracks;
+    while (en) {
+        const int i = 31 - __builtin_clz(en);
+        en &= ~(1<<i);
+
+        countActiveTracks++;
+        track_t& t = state->tracks[i];
+        uint32_t n = 0;
+        // FIXME can overflow (mask is only 3 bits)
+        n |= NEEDS_CHANNEL_1 + t.channelCount - 1;
+        if (t.doesResample()) {
+            n |= NEEDS_RESAMPLE;
+        }
+        if (t.auxLevel != 0 && t.auxBuffer != NULL) {
+            n |= NEEDS_AUX;
+        }
+
+        if (t.volumeInc[0]|t.volumeInc[1]) {
+            volumeRamp = true;
+        } else if (!t.doesResample() && t.volumeRL == 0) {
+            n |= NEEDS_MUTE;
+        }
+        t.needs = n;
+
+        if (n & NEEDS_MUTE) {
+            t.hook = track__nop;
+        } else {
+            if (n & NEEDS_AUX) {
+                all16BitsStereoNoResample = false;
+            }
+            if (n & NEEDS_RESAMPLE) {
+                all16BitsStereoNoResample = false;
+                resampling = true;
+                t.hook = getTrackHook(TRACKTYPE_RESAMPLE, t.mMixerChannelCount,
+                        t.mMixerInFormat, t.mMixerFormat);
+                ALOGV_IF((n & NEEDS_CHANNEL_COUNT__MASK) > NEEDS_CHANNEL_2,
+                        "Track %d needs downmix + resample", i);
+            } else {
+                if ((n & NEEDS_CHANNEL_COUNT__MASK) == NEEDS_CHANNEL_1){
+                    t.hook = getTrackHook(
+                            (t.mMixerChannelMask == AUDIO_CHANNEL_OUT_STEREO  // TODO: MONO_HACK
+                                    && t.channelMask == AUDIO_CHANNEL_OUT_MONO)
+                                ? TRACKTYPE_NORESAMPLEMONO : TRACKTYPE_NORESAMPLE,
+                            t.mMixerChannelCount,
+                            t.mMixerInFormat, t.mMixerFormat);
+                    all16BitsStereoNoResample = false;
+                }
+                if ((n & NEEDS_CHANNEL_COUNT__MASK) >= NEEDS_CHANNEL_2){
+                    t.hook = getTrackHook(TRACKTYPE_NORESAMPLE, t.mMixerChannelCount,
+                            t.mMixerInFormat, t.mMixerFormat);
+                    ALOGV_IF((n & NEEDS_CHANNEL_COUNT__MASK) > NEEDS_CHANNEL_2,
+                            "Track %d needs downmix", i);
+                }
+            }
+        }
+    }
+
+    // select the processing hooks
+    state->hook = process__nop;
+    if (countActiveTracks > 0) {
+        if (resampling) {
+            if (!state->outputTemp) {
+                state->outputTemp = new int32_t[MAX_NUM_CHANNELS * state->frameCount];
+            }
+            if (!state->resampleTemp) {
+                state->resampleTemp = new int32_t[MAX_NUM_CHANNELS * state->frameCount];
+            }
+            state->hook = process__genericResampling;
+        } else {
+            if (state->outputTemp) {
+                delete [] state->outputTemp;
+                state->outputTemp = NULL;
+            }
+            if (state->resampleTemp) {
+                delete [] state->resampleTemp;
+                state->resampleTemp = NULL;
+            }
+            state->hook = process__genericNoResampling;
+            if (all16BitsStereoNoResample && !volumeRamp) {
+                if (countActiveTracks == 1) {
+                    const int i = 31 - __builtin_clz(state->enabledTracks);
+                    track_t& t = state->tracks[i];
+                    if ((t.needs & NEEDS_MUTE) == 0) {
+                        // The check prevents a muted track from acquiring a process hook.
+                        //
+                        // This is dangerous if the track is MONO as that requires
+                        // special case handling due to implicit channel duplication.
+                        // Stereo or Multichannel should actually be fine here.
+                        state->hook = getProcessHook(PROCESSTYPE_NORESAMPLEONETRACK,
+                                t.mMixerChannelCount, t.mMixerInFormat, t.mMixerFormat);
+                    }
+                }
+            }
+        }
+    }
+
+    ALOGV("mixer configuration change: %d activeTracks (%08x) "
+        "all16BitsStereoNoResample=%d, resampling=%d, volumeRamp=%d",
+        countActiveTracks, state->enabledTracks,
+        all16BitsStereoNoResample, resampling, volumeRamp);
+
+   state->hook(state);
+
+    // Now that the volume ramp has been done, set optimal state and
+    // track hooks for subsequent mixer process
+    if (countActiveTracks > 0) {
+        bool allMuted = true;
+        uint32_t en = state->enabledTracks;
+        while (en) {
+            const int i = 31 - __builtin_clz(en);
+            en &= ~(1<<i);
+            track_t& t = state->tracks[i];
+            if (!t.doesResample() && t.volumeRL == 0) {
+                t.needs |= NEEDS_MUTE;
+                t.hook = track__nop;
+            } else {
+                allMuted = false;
+            }
+        }
+        if (allMuted) {
+            state->hook = process__nop;
+        } else if (all16BitsStereoNoResample) {
+            if (countActiveTracks == 1) {
+                const int i = 31 - __builtin_clz(state->enabledTracks);
+                track_t& t = state->tracks[i];
+                // Muted single tracks handled by allMuted above.
+                state->hook = getProcessHook(PROCESSTYPE_NORESAMPLEONETRACK,
+                        t.mMixerChannelCount, t.mMixerInFormat, t.mMixerFormat);
+            }
+        }
+    }
+}
+
+
+void AudioMixer::track__genericResample(track_t* t, int32_t* out, size_t outFrameCount,
+        int32_t* temp, int32_t* aux)
+{
+    ALOGVV("track__genericResample\n");
+    t->resampler->setSampleRate(t->sampleRate);
+
+    // ramp gain - resample to temp buffer and scale/mix in 2nd step
+    if (aux != NULL) {
+        // always resample with unity gain when sending to auxiliary buffer to be able
+        // to apply send level after resampling
+        t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
+        memset(temp, 0, outFrameCount * t->mMixerChannelCount * sizeof(int32_t));
+        t->resampler->resample(temp, outFrameCount, t->bufferProvider);
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
+            volumeRampStereo(t, out, outFrameCount, temp, aux);
+        } else {
+            volumeStereo(t, out, outFrameCount, temp, aux);
+        }
+    } else {
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
+            t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
+            memset(temp, 0, outFrameCount * MAX_NUM_CHANNELS * sizeof(int32_t));
+            t->resampler->resample(temp, outFrameCount, t->bufferProvider);
+            volumeRampStereo(t, out, outFrameCount, temp, aux);
+        }
+
+        // constant gain
+        else {
+            t->resampler->setVolume(t->mVolume[0], t->mVolume[1]);
+            t->resampler->resample(out, outFrameCount, t->bufferProvider);
+        }
+    }
+}
+
+void AudioMixer::track__nop(track_t* t __unused, int32_t* out __unused,
+        size_t outFrameCount __unused, int32_t* temp __unused, int32_t* aux __unused)
+{
+}
+
+void AudioMixer::volumeRampStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
+        int32_t* aux)
+{
+    int32_t vl = t->prevVolume[0];
+    int32_t vr = t->prevVolume[1];
+    const int32_t vlInc = t->volumeInc[0];
+    const int32_t vrInc = t->volumeInc[1];
+
+    //ALOGD("[0] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
+    //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
+    //       (vl + vlInc*frameCount)/65536.0f, frameCount);
+
+    // ramp volume
+    if (CC_UNLIKELY(aux != NULL)) {
+        int32_t va = t->prevAuxLevel;
+        const int32_t vaInc = t->auxInc;
+        int32_t l;
+        int32_t r;
+
+        do {
+            l = (*temp++ >> 12);
+            r = (*temp++ >> 12);
+            *out++ += (vl >> 16) * l;
+            *out++ += (vr >> 16) * r;
+            *aux++ += (va >> 17) * (l + r);
+            vl += vlInc;
+            vr += vrInc;
+            va += vaInc;
+        } while (--frameCount);
+        t->prevAuxLevel = va;
+    } else {
+        do {
+            *out++ += (vl >> 16) * (*temp++ >> 12);
+            *out++ += (vr >> 16) * (*temp++ >> 12);
+            vl += vlInc;
+            vr += vrInc;
+        } while (--frameCount);
+    }
+    t->prevVolume[0] = vl;
+    t->prevVolume[1] = vr;
+    t->adjustVolumeRamp(aux != NULL);
+}
+
+void AudioMixer::volumeStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
+        int32_t* aux)
+{
+    const int16_t vl = t->volume[0];
+    const int16_t vr = t->volume[1];
+
+    if (CC_UNLIKELY(aux != NULL)) {
+        const int16_t va = t->auxLevel;
+        do {
+            int16_t l = (int16_t)(*temp++ >> 12);
+            int16_t r = (int16_t)(*temp++ >> 12);
+            out[0] = mulAdd(l, vl, out[0]);
+            int16_t a = (int16_t)(((int32_t)l + r) >> 1);
+            out[1] = mulAdd(r, vr, out[1]);
+            out += 2;
+            aux[0] = mulAdd(a, va, aux[0]);
+            aux++;
+        } while (--frameCount);
+    } else {
+        do {
+            int16_t l = (int16_t)(*temp++ >> 12);
+            int16_t r = (int16_t)(*temp++ >> 12);
+            out[0] = mulAdd(l, vl, out[0]);
+            out[1] = mulAdd(r, vr, out[1]);
+            out += 2;
+        } while (--frameCount);
+    }
+}
+
+void AudioMixer::track__16BitsStereo(track_t* t, int32_t* out, size_t frameCount,
+        int32_t* temp __unused, int32_t* aux)
+{
+    ALOGVV("track__16BitsStereo\n");
+    const int16_t *in = static_cast<const int16_t *>(t->in);
+
+    if (CC_UNLIKELY(aux != NULL)) {
+        int32_t l;
+        int32_t r;
+        // ramp gain
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
+            int32_t vl = t->prevVolume[0];
+            int32_t vr = t->prevVolume[1];
+            int32_t va = t->prevAuxLevel;
+            const int32_t vlInc = t->volumeInc[0];
+            const int32_t vrInc = t->volumeInc[1];
+            const int32_t vaInc = t->auxInc;
+            // ALOGD("[1] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
+            //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
+            //        (vl + vlInc*frameCount)/65536.0f, frameCount);
+
+            do {
+                l = (int32_t)*in++;
+                r = (int32_t)*in++;
+                *out++ += (vl >> 16) * l;
+                *out++ += (vr >> 16) * r;
+                *aux++ += (va >> 17) * (l + r);
+                vl += vlInc;
+                vr += vrInc;
+                va += vaInc;
+            } while (--frameCount);
+
+            t->prevVolume[0] = vl;
+            t->prevVolume[1] = vr;
+            t->prevAuxLevel = va;
+            t->adjustVolumeRamp(true);
+        }
+
+        // constant gain
+        else {
+            const uint32_t vrl = t->volumeRL;
+            const int16_t va = (int16_t)t->auxLevel;
+            do {
+                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
+                int16_t a = (int16_t)(((int32_t)in[0] + in[1]) >> 1);
+                in += 2;
+                out[0] = mulAddRL(1, rl, vrl, out[0]);
+                out[1] = mulAddRL(0, rl, vrl, out[1]);
+                out += 2;
+                aux[0] = mulAdd(a, va, aux[0]);
+                aux++;
+            } while (--frameCount);
+        }
+    } else {
+        // ramp gain
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
+            int32_t vl = t->prevVolume[0];
+            int32_t vr = t->prevVolume[1];
+            const int32_t vlInc = t->volumeInc[0];
+            const int32_t vrInc = t->volumeInc[1];
+
+            // ALOGD("[1] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
+            //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
+            //        (vl + vlInc*frameCount)/65536.0f, frameCount);
+
+            do {
+                *out++ += (vl >> 16) * (int32_t) *in++;
+                *out++ += (vr >> 16) * (int32_t) *in++;
+                vl += vlInc;
+                vr += vrInc;
+            } while (--frameCount);
+
+            t->prevVolume[0] = vl;
+            t->prevVolume[1] = vr;
+            t->adjustVolumeRamp(false);
+        }
+
+        // constant gain
+        else {
+            const uint32_t vrl = t->volumeRL;
+            do {
+                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
+                in += 2;
+                out[0] = mulAddRL(1, rl, vrl, out[0]);
+                out[1] = mulAddRL(0, rl, vrl, out[1]);
+                out += 2;
+            } while (--frameCount);
+        }
+    }
+    t->in = in;
+}
+
+void AudioMixer::track__16BitsMono(track_t* t, int32_t* out, size_t frameCount,
+        int32_t* temp __unused, int32_t* aux)
+{
+    ALOGVV("track__16BitsMono\n");
+    const int16_t *in = static_cast<int16_t const *>(t->in);
+
+    if (CC_UNLIKELY(aux != NULL)) {
+        // ramp gain
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
+            int32_t vl = t->prevVolume[0];
+            int32_t vr = t->prevVolume[1];
+            int32_t va = t->prevAuxLevel;
+            const int32_t vlInc = t->volumeInc[0];
+            const int32_t vrInc = t->volumeInc[1];
+            const int32_t vaInc = t->auxInc;
+
+            // ALOGD("[2] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
+            //         t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
+            //         (vl + vlInc*frameCount)/65536.0f, frameCount);
+
+            do {
+                int32_t l = *in++;
+                *out++ += (vl >> 16) * l;
+                *out++ += (vr >> 16) * l;
+                *aux++ += (va >> 16) * l;
+                vl += vlInc;
+                vr += vrInc;
+                va += vaInc;
+            } while (--frameCount);
+
+            t->prevVolume[0] = vl;
+            t->prevVolume[1] = vr;
+            t->prevAuxLevel = va;
+            t->adjustVolumeRamp(true);
+        }
+        // constant gain
+        else {
+            const int16_t vl = t->volume[0];
+            const int16_t vr = t->volume[1];
+            const int16_t va = (int16_t)t->auxLevel;
+            do {
+                int16_t l = *in++;
+                out[0] = mulAdd(l, vl, out[0]);
+                out[1] = mulAdd(l, vr, out[1]);
+                out += 2;
+                aux[0] = mulAdd(l, va, aux[0]);
+                aux++;
+            } while (--frameCount);
+        }
+    } else {
+        // ramp gain
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
+            int32_t vl = t->prevVolume[0];
+            int32_t vr = t->prevVolume[1];
+            const int32_t vlInc = t->volumeInc[0];
+            const int32_t vrInc = t->volumeInc[1];
+
+            // ALOGD("[2] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
+            //         t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
+            //         (vl + vlInc*frameCount)/65536.0f, frameCount);
+
+            do {
+                int32_t l = *in++;
+                *out++ += (vl >> 16) * l;
+                *out++ += (vr >> 16) * l;
+                vl += vlInc;
+                vr += vrInc;
+            } while (--frameCount);
+
+            t->prevVolume[0] = vl;
+            t->prevVolume[1] = vr;
+            t->adjustVolumeRamp(false);
+        }
+        // constant gain
+        else {
+            const int16_t vl = t->volume[0];
+            const int16_t vr = t->volume[1];
+            do {
+                int16_t l = *in++;
+                out[0] = mulAdd(l, vl, out[0]);
+                out[1] = mulAdd(l, vr, out[1]);
+                out += 2;
+            } while (--frameCount);
+        }
+    }
+    t->in = in;
+}
+
+// no-op case
+void AudioMixer::process__nop(state_t* state)
+{
+    ALOGVV("process__nop\n");
+    uint32_t e0 = state->enabledTracks;
+    while (e0) {
+        // process by group of tracks with same output buffer to
+        // avoid multiple memset() on same buffer
+        uint32_t e1 = e0, e2 = e0;
+        int i = 31 - __builtin_clz(e1);
+        {
+            track_t& t1 = state->tracks[i];
+            e2 &= ~(1<<i);
+            while (e2) {
+                i = 31 - __builtin_clz(e2);
+                e2 &= ~(1<<i);
+                track_t& t2 = state->tracks[i];
+                if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
+                    e1 &= ~(1<<i);
+                }
+            }
+            e0 &= ~(e1);
+
+            memset(t1.mainBuffer, 0, state->frameCount * t1.mMixerChannelCount
+                    * audio_bytes_per_sample(t1.mMixerFormat));
+        }
+
+        while (e1) {
+            i = 31 - __builtin_clz(e1);
+            e1 &= ~(1<<i);
+            {
+                track_t& t3 = state->tracks[i];
+                size_t outFrames = state->frameCount;
+                while (outFrames) {
+                    t3.buffer.frameCount = outFrames;
+                    t3.bufferProvider->getNextBuffer(&t3.buffer);
+                    if (t3.buffer.raw == NULL) break;
+                    outFrames -= t3.buffer.frameCount;
+                    t3.bufferProvider->releaseBuffer(&t3.buffer);
+                }
+            }
+        }
+    }
+}
+
+// generic code without resampling
+void AudioMixer::process__genericNoResampling(state_t* state)
+{
+    ALOGVV("process__genericNoResampling\n");
+    int32_t outTemp[BLOCKSIZE * MAX_NUM_CHANNELS] __attribute__((aligned(32)));
+
+    // acquire each track's buffer
+    uint32_t enabledTracks = state->enabledTracks;
+    uint32_t e0 = enabledTracks;
+    while (e0) {
+        const int i = 31 - __builtin_clz(e0);
+        e0 &= ~(1<<i);
+        track_t& t = state->tracks[i];
+        t.buffer.frameCount = state->frameCount;
+        t.bufferProvider->getNextBuffer(&t.buffer);
+        t.frameCount = t.buffer.frameCount;
+        t.in = t.buffer.raw;
+    }
+
+    e0 = enabledTracks;
+    while (e0) {
+        // process by group of tracks with same output buffer to
+        // optimize cache use
+        uint32_t e1 = e0, e2 = e0;
+        int j = 31 - __builtin_clz(e1);
+        track_t& t1 = state->tracks[j];
+        e2 &= ~(1<<j);
+        while (e2) {
+            j = 31 - __builtin_clz(e2);
+            e2 &= ~(1<<j);
+            track_t& t2 = state->tracks[j];
+            if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
+                e1 &= ~(1<<j);
+            }
+        }
+        e0 &= ~(e1);
+        // this assumes output 16 bits stereo, no resampling
+        int32_t *out = t1.mainBuffer;
+        size_t numFrames = 0;
+        do {
+            memset(outTemp, 0, sizeof(outTemp));
+            e2 = e1;
+            while (e2) {
+                const int i = 31 - __builtin_clz(e2);
+                e2 &= ~(1<<i);
+                track_t& t = state->tracks[i];
+                size_t outFrames = BLOCKSIZE;
+                int32_t *aux = NULL;
+                if (CC_UNLIKELY(t.needs & NEEDS_AUX)) {
+                    aux = t.auxBuffer + numFrames;
+                }
+                while (outFrames) {
+                    // t.in == NULL can happen if the track was flushed just after having
+                    // been enabled for mixing.
+                   if (t.in == NULL) {
+                        enabledTracks &= ~(1<<i);
+                        e1 &= ~(1<<i);
+                        break;
+                    }
+                    size_t inFrames = (t.frameCount > outFrames)?outFrames:t.frameCount;
+                    if (inFrames > 0) {
+                        t.hook(&t, outTemp + (BLOCKSIZE - outFrames) * t.mMixerChannelCount,
+                                inFrames, state->resampleTemp, aux);
+                        t.frameCount -= inFrames;
+                        outFrames -= inFrames;
+                        if (CC_UNLIKELY(aux != NULL)) {
+                            aux += inFrames;
+                        }
+                    }
+                    if (t.frameCount == 0 && outFrames) {
+                        t.bufferProvider->releaseBuffer(&t.buffer);
+                        t.buffer.frameCount = (state->frameCount - numFrames) -
+                                (BLOCKSIZE - outFrames);
+                        t.bufferProvider->getNextBuffer(&t.buffer);
+                        t.in = t.buffer.raw;
+                        if (t.in == NULL) {
+                            enabledTracks &= ~(1<<i);
+                            e1 &= ~(1<<i);
+                            break;
+                        }
+                        t.frameCount = t.buffer.frameCount;
+                    }
+                }
+            }
+
+            convertMixerFormat(out, t1.mMixerFormat, outTemp, t1.mMixerInFormat,
+                    BLOCKSIZE * t1.mMixerChannelCount);
+            // TODO: fix ugly casting due to choice of out pointer type
+            out = reinterpret_cast<int32_t*>((uint8_t*)out
+                    + BLOCKSIZE * t1.mMixerChannelCount
+                        * audio_bytes_per_sample(t1.mMixerFormat));
+            numFrames += BLOCKSIZE;
+        } while (numFrames < state->frameCount);
+    }
+
+    // release each track's buffer
+    e0 = enabledTracks;
+    while (e0) {
+        const int i = 31 - __builtin_clz(e0);
+        e0 &= ~(1<<i);
+        track_t& t = state->tracks[i];
+        t.bufferProvider->releaseBuffer(&t.buffer);
+    }
+}
+
+
+// generic code with resampling
+void AudioMixer::process__genericResampling(state_t* state)
+{
+    ALOGVV("process__genericResampling\n");
+    // this const just means that local variable outTemp doesn't change
+    int32_t* const outTemp = state->outputTemp;
+    size_t numFrames = state->frameCount;
+
+    uint32_t e0 = state->enabledTracks;
+    while (e0) {
+        // process by group of tracks with same output buffer
+        // to optimize cache use
+        uint32_t e1 = e0, e2 = e0;
+        int j = 31 - __builtin_clz(e1);
+        track_t& t1 = state->tracks[j];
+        e2 &= ~(1<<j);
+        while (e2) {
+            j = 31 - __builtin_clz(e2);
+            e2 &= ~(1<<j);
+            track_t& t2 = state->tracks[j];
+            if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
+                e1 &= ~(1<<j);
+            }
+        }
+        e0 &= ~(e1);
+        int32_t *out = t1.mainBuffer;
+        memset(outTemp, 0, sizeof(*outTemp) * t1.mMixerChannelCount * state->frameCount);
+        while (e1) {
+            const int i = 31 - __builtin_clz(e1);
+            e1 &= ~(1<<i);
+            track_t& t = state->tracks[i];
+            int32_t *aux = NULL;
+            if (CC_UNLIKELY(t.needs & NEEDS_AUX)) {
+                aux = t.auxBuffer;
+            }
+
+            // this is a little goofy, on the resampling case we don't
+            // acquire/release the buffers because it's done by
+            // the resampler.
+            if (t.needs & NEEDS_RESAMPLE) {
+                t.hook(&t, outTemp, numFrames, state->resampleTemp, aux);
+            } else {
+
+                size_t outFrames = 0;
+
+                while (outFrames < numFrames) {
+                    t.buffer.frameCount = numFrames - outFrames;
+                    t.bufferProvider->getNextBuffer(&t.buffer);
+                    t.in = t.buffer.raw;
+                    // t.in == NULL can happen if the track was flushed just after having
+                    // been enabled for mixing.
+                    if (t.in == NULL) break;
+
+                    if (CC_UNLIKELY(aux != NULL)) {
+                        aux += outFrames;
+                    }
+                    t.hook(&t, outTemp + outFrames * t.mMixerChannelCount, t.buffer.frameCount,
+                            state->resampleTemp, aux);
+                    outFrames += t.buffer.frameCount;
+                    t.bufferProvider->releaseBuffer(&t.buffer);
+                }
+            }
+        }
+        convertMixerFormat(out, t1.mMixerFormat,
+                outTemp, t1.mMixerInFormat, numFrames * t1.mMixerChannelCount);
+    }
+}
+
+// one track, 16 bits stereo without resampling is the most common case
+void AudioMixer::process__OneTrack16BitsStereoNoResampling(state_t* state)
+{
+    ALOGVV("process__OneTrack16BitsStereoNoResampling\n");
+    // This method is only called when state->enabledTracks has exactly
+    // one bit set.  The asserts below would verify this, but are commented out
+    // since the whole point of this method is to optimize performance.
+    //ALOG_ASSERT(0 != state->enabledTracks, "no tracks enabled");
+    const int i = 31 - __builtin_clz(state->enabledTracks);
+    //ALOG_ASSERT((1 << i) == state->enabledTracks, "more than 1 track enabled");
+    const track_t& t = state->tracks[i];
+
+    AudioBufferProvider::Buffer& b(t.buffer);
+
+    int32_t* out = t.mainBuffer;
+    float *fout = reinterpret_cast<float*>(out);
+    size_t numFrames = state->frameCount;
+
+    const int16_t vl = t.volume[0];
+    const int16_t vr = t.volume[1];
+    const uint32_t vrl = t.volumeRL;
+    while (numFrames) {
+        b.frameCount = numFrames;
+        t.bufferProvider->getNextBuffer(&b);
+        const int16_t *in = b.i16;
+
+        // in == NULL can happen if the track was flushed just after having
+        // been enabled for mixing.
+        if (in == NULL || (((uintptr_t)in) & 3)) {
+            if ( AUDIO_FORMAT_PCM_FLOAT == t.mMixerFormat ) {
+                 memset((char*)fout, 0, numFrames
+                         * t.mMixerChannelCount * audio_bytes_per_sample(t.mMixerFormat));
+            } else {
+                 memset((char*)out, 0, numFrames
+                         * t.mMixerChannelCount * audio_bytes_per_sample(t.mMixerFormat));
+            }
+            ALOGE_IF((((uintptr_t)in) & 3),
+                    "process__OneTrack16BitsStereoNoResampling: misaligned buffer"
+                    " %p track %d, channels %d, needs %08x, volume %08x vfl %f vfr %f",
+                    in, i, t.channelCount, t.needs, vrl, t.mVolume[0], t.mVolume[1]);
+            return;
+        }
+        size_t outFrames = b.frameCount;
+
+        switch (t.mMixerFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            do {
+                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
+                in += 2;
+                int32_t l = mulRL(1, rl, vrl);
+                int32_t r = mulRL(0, rl, vrl);
+                *fout++ = float_from_q4_27(l);
+                *fout++ = float_from_q4_27(r);
+                // Note: In case of later int16_t sink output,
+                // conversion and clamping is done by memcpy_to_i16_from_float().
+            } while (--outFrames);
+            break;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            if (CC_UNLIKELY(uint32_t(vl) > UNITY_GAIN_INT || uint32_t(vr) > UNITY_GAIN_INT)) {
+                // volume is boosted, so we might need to clamp even though
+                // we process only one track.
+                do {
+                    uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
+                    in += 2;
+                    int32_t l = mulRL(1, rl, vrl) >> 12;
+                    int32_t r = mulRL(0, rl, vrl) >> 12;
+                    // clamping...
+                    l = clamp16(l);
+                    r = clamp16(r);
+                    *out++ = (r<<16) | (l & 0xFFFF);
+                } while (--outFrames);
+            } else {
+                do {
+                    uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
+                    in += 2;
+                    int32_t l = mulRL(1, rl, vrl) >> 12;
+                    int32_t r = mulRL(0, rl, vrl) >> 12;
+                    *out++ = (r<<16) | (l & 0xFFFF);
+                } while (--outFrames);
+            }
+            break;
+        default:
+            LOG_ALWAYS_FATAL("bad mixer format: %d", t.mMixerFormat);
+        }
+        numFrames -= b.frameCount;
+        t.bufferProvider->releaseBuffer(&b);
+    }
+}
+
+/*static*/ pthread_once_t AudioMixer::sOnceControl = PTHREAD_ONCE_INIT;
+
+/*static*/ void AudioMixer::sInitRoutine()
+{
+    DownmixerBufferProvider::init(); // for the downmixer
+}
+
+/* TODO: consider whether this level of optimization is necessary.
+ * Perhaps just stick with a single for loop.
+ */
+
+// Needs to derive a compile time constant (constexpr).  Could be targeted to go
+// to a MONOVOL mixtype based on MAX_NUM_VOLUMES, but that's an unnecessary complication.
+#define MIXTYPE_MONOVOL(mixtype) ((mixtype) == MIXTYPE_MULTI ? MIXTYPE_MULTI_MONOVOL : \
+        (mixtype) == MIXTYPE_MULTI_SAVEONLY ? MIXTYPE_MULTI_SAVEONLY_MONOVOL : (mixtype))
+
+/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE,
+        typename TO, typename TI, typename TV, typename TA, typename TAV>
+static void volumeRampMulti(uint32_t channels, TO* out, size_t frameCount,
+        const TI* in, TA* aux, TV *vol, const TV *volinc, TAV *vola, TAV volainc)
+{
+    switch (channels) {
+    case 1:
+        volumeRampMulti<MIXTYPE, 1>(out, frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 2:
+        volumeRampMulti<MIXTYPE, 2>(out, frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 3:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 3>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 4:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 4>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 5:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 5>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 6:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 6>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 7:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 7>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 8:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 8>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    }
+}
+
+/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE,
+        typename TO, typename TI, typename TV, typename TA, typename TAV>
+static void volumeMulti(uint32_t channels, TO* out, size_t frameCount,
+        const TI* in, TA* aux, const TV *vol, TAV vola)
+{
+    switch (channels) {
+    case 1:
+        volumeMulti<MIXTYPE, 1>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 2:
+        volumeMulti<MIXTYPE, 2>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 3:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 3>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 4:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 4>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 5:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 5>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 6:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 6>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 7:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 7>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 8:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 8>(out, frameCount, in, aux, vol, vola);
+        break;
+    }
+}
+
+/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * USEFLOATVOL (set to true if float volume is used)
+ * ADJUSTVOL   (set to true if volume ramp parameters needs adjustment afterwards)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE, bool USEFLOATVOL, bool ADJUSTVOL,
+    typename TO, typename TI, typename TA>
+void AudioMixer::volumeMix(TO *out, size_t outFrames,
+        const TI *in, TA *aux, bool ramp, AudioMixer::track_t *t)
+{
+    if (USEFLOATVOL) {
+        if (ramp) {
+            volumeRampMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
+                    t->mPrevVolume, t->mVolumeInc, &t->prevAuxLevel, t->auxInc);
+            if (ADJUSTVOL) {
+                t->adjustVolumeRamp(aux != NULL, true);
+            }
+        } else {
+            volumeMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
+                    t->mVolume, t->auxLevel);
+        }
+    } else {
+        if (ramp) {
+            volumeRampMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
+                    t->prevVolume, t->volumeInc, &t->prevAuxLevel, t->auxInc);
+            if (ADJUSTVOL) {
+                t->adjustVolumeRamp(aux != NULL);
+            }
+        } else {
+            volumeMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
+                    t->volume, t->auxLevel);
+        }
+    }
+}
+
+/* This process hook is called when there is a single track without
+ * aux buffer, volume ramp, or resampling.
+ * TODO: Update the hook selection: this can properly handle aux and ramp.
+ *
+ * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE, typename TO, typename TI, typename TA>
+void AudioMixer::process_NoResampleOneTrack(state_t* state)
+{
+    ALOGVV("process_NoResampleOneTrack\n");
+    // CLZ is faster than CTZ on ARM, though really not sure if true after 31 - clz.
+    const int i = 31 - __builtin_clz(state->enabledTracks);
+    ALOG_ASSERT((1 << i) == state->enabledTracks, "more than 1 track enabled");
+    track_t *t = &state->tracks[i];
+    const uint32_t channels = t->mMixerChannelCount;
+    TO* out = reinterpret_cast<TO*>(t->mainBuffer);
+    TA* aux = reinterpret_cast<TA*>(t->auxBuffer);
+    const bool ramp = t->needsRamp();
+
+    for (size_t numFrames = state->frameCount; numFrames; ) {
+        AudioBufferProvider::Buffer& b(t->buffer);
+        // get input buffer
+        b.frameCount = numFrames;
+        t->bufferProvider->getNextBuffer(&b);
+        const TI *in = reinterpret_cast<TI*>(b.raw);
+
+        // in == NULL can happen if the track was flushed just after having
+        // been enabled for mixing.
+        if (in == NULL || (((uintptr_t)in) & 3)) {
+            memset(out, 0, numFrames
+                    * channels * audio_bytes_per_sample(t->mMixerFormat));
+            ALOGE_IF((((uintptr_t)in) & 3), "process_NoResampleOneTrack: bus error: "
+                    "buffer %p track %p, channels %d, needs %#x",
+                    in, t, t->channelCount, t->needs);
+            return;
+        }
+
+        const size_t outFrames = b.frameCount;
+        volumeMix<MIXTYPE, is_same<TI, float>::value, false> (
+                out, outFrames, in, aux, ramp, t);
+
+        out += outFrames * channels;
+        if (aux != NULL) {
+            aux += channels;
+        }
+        numFrames -= b.frameCount;
+
+        // release buffer
+        t->bufferProvider->releaseBuffer(&b);
+    }
+    if (ramp) {
+        t->adjustVolumeRamp(aux != NULL, is_same<TI, float>::value);
+    }
+}
+
+/* This track hook is called to do resampling then mixing,
+ * pulling from the track's upstream AudioBufferProvider.
+ *
+ * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE, typename TO, typename TI, typename TA>
+void AudioMixer::track__Resample(track_t* t, TO* out, size_t outFrameCount, TO* temp, TA* aux)
+{
+    ALOGVV("track__Resample\n");
+    t->resampler->setSampleRate(t->sampleRate);
+    const bool ramp = t->needsRamp();
+    if (ramp || aux != NULL) {
+        // if ramp:        resample with unity gain to temp buffer and scale/mix in 2nd step.
+        // if aux != NULL: resample with unity gain to temp buffer then apply send level.
+
+        t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
+        memset(temp, 0, outFrameCount * t->mMixerChannelCount * sizeof(TO));
+        t->resampler->resample((int32_t*)temp, outFrameCount, t->bufferProvider);
+
+        volumeMix<MIXTYPE, is_same<TI, float>::value, true>(
+                out, outFrameCount, temp, aux, ramp, t);
+
+    } else { // constant volume gain
+        t->resampler->setVolume(t->mVolume[0], t->mVolume[1]);
+        t->resampler->resample((int32_t*)out, outFrameCount, t->bufferProvider);
+    }
+}
+
+/* This track hook is called to mix a track, when no resampling is required.
+ * The input buffer should be present in t->in.
+ *
+ * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE, typename TO, typename TI, typename TA>
+void AudioMixer::track__NoResample(track_t* t, TO* out, size_t frameCount,
+        TO* temp __unused, TA* aux)
+{
+    ALOGVV("track__NoResample\n");
+    const TI *in = static_cast<const TI *>(t->in);
+
+    volumeMix<MIXTYPE, is_same<TI, float>::value, true>(
+            out, frameCount, in, aux, t->needsRamp(), t);
+
+    // MIXTYPE_MONOEXPAND reads a single input channel and expands to NCHAN output channels.
+    // MIXTYPE_MULTI reads NCHAN input channels and places to NCHAN output channels.
+    in += (MIXTYPE == MIXTYPE_MONOEXPAND) ? frameCount : frameCount * t->mMixerChannelCount;
+    t->in = in;
+}
+
+/* The Mixer engine generates either int32_t (Q4_27) or float data.
+ * We use this function to convert the engine buffers
+ * to the desired mixer output format, either int16_t (Q.15) or float.
+ */
+void AudioMixer::convertMixerFormat(void *out, audio_format_t mixerOutFormat,
+        void *in, audio_format_t mixerInFormat, size_t sampleCount)
+{
+    switch (mixerInFormat) {
+    case AUDIO_FORMAT_PCM_FLOAT:
+        switch (mixerOutFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            memcpy(out, in, sampleCount * sizeof(float)); // MEMCPY. TODO optimize out
+            break;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            memcpy_to_i16_from_float((int16_t*)out, (float*)in, sampleCount);
+            break;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
+            break;
+        }
+        break;
+    case AUDIO_FORMAT_PCM_16_BIT:
+        switch (mixerOutFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            memcpy_to_float_from_q4_27((float*)out, (int32_t*)in, sampleCount);
+            break;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            // two int16_t are produced per iteration
+            ditherAndClamp((int32_t*)out, (int32_t*)in, sampleCount >> 1);
+            break;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
+            break;
+        }
+        break;
+    default:
+        LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
+        break;
+    }
+}
+
+/* Returns the proper track hook to use for mixing the track into the output buffer.
+ */
+AudioMixer::hook_t AudioMixer::getTrackHook(int trackType, uint32_t channelCount,
+        audio_format_t mixerInFormat, audio_format_t mixerOutFormat __unused)
+{
+    if (!kUseNewMixer && channelCount == FCC_2 && mixerInFormat == AUDIO_FORMAT_PCM_16_BIT) {
+        switch (trackType) {
+        case TRACKTYPE_NOP:
+            return track__nop;
+        case TRACKTYPE_RESAMPLE:
+            return track__genericResample;
+        case TRACKTYPE_NORESAMPLEMONO:
+            return track__16BitsMono;
+        case TRACKTYPE_NORESAMPLE:
+            return track__16BitsStereo;
+        default:
+            LOG_ALWAYS_FATAL("bad trackType: %d", trackType);
+            break;
+        }
+    }
+    LOG_ALWAYS_FATAL_IF(channelCount > MAX_NUM_CHANNELS);
+    switch (trackType) {
+    case TRACKTYPE_NOP:
+        return track__nop;
+    case TRACKTYPE_RESAMPLE:
+        switch (mixerInFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return (AudioMixer::hook_t)
+                    track__Resample<MIXTYPE_MULTI, float /*TO*/, float /*TI*/, int32_t /*TA*/>;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            return (AudioMixer::hook_t)\
+                    track__Resample<MIXTYPE_MULTI, int32_t, int16_t, int32_t>;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
+            break;
+        }
+        break;
+    case TRACKTYPE_NORESAMPLEMONO:
+        switch (mixerInFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return (AudioMixer::hook_t)
+                    track__NoResample<MIXTYPE_MONOEXPAND, float, float, int32_t>;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            return (AudioMixer::hook_t)
+                    track__NoResample<MIXTYPE_MONOEXPAND, int32_t, int16_t, int32_t>;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
+            break;
+        }
+        break;
+    case TRACKTYPE_NORESAMPLE:
+        switch (mixerInFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return (AudioMixer::hook_t)
+                    track__NoResample<MIXTYPE_MULTI, float, float, int32_t>;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            return (AudioMixer::hook_t)
+                    track__NoResample<MIXTYPE_MULTI, int32_t, int16_t, int32_t>;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
+            break;
+        }
+        break;
+    default:
+        LOG_ALWAYS_FATAL("bad trackType: %d", trackType);
+        break;
+    }
+    return NULL;
+}
+
+/* Returns the proper process hook for mixing tracks. Currently works only for
+ * PROCESSTYPE_NORESAMPLEONETRACK, a mix involving one track, no resampling.
+ *
+ * TODO: Due to the special mixing considerations of duplicating to
+ * a stereo output track, the input track cannot be MONO.  This should be
+ * prevented by the caller.
+ */
+AudioMixer::process_hook_t AudioMixer::getProcessHook(int processType, uint32_t channelCount,
+        audio_format_t mixerInFormat, audio_format_t mixerOutFormat)
+{
+    if (processType != PROCESSTYPE_NORESAMPLEONETRACK) { // Only NORESAMPLEONETRACK
+        LOG_ALWAYS_FATAL("bad processType: %d", processType);
+        return NULL;
+    }
+    if (!kUseNewMixer && channelCount == FCC_2 && mixerInFormat == AUDIO_FORMAT_PCM_16_BIT) {
+        return process__OneTrack16BitsStereoNoResampling;
+    }
+    LOG_ALWAYS_FATAL_IF(channelCount > MAX_NUM_CHANNELS);
+    switch (mixerInFormat) {
+    case AUDIO_FORMAT_PCM_FLOAT:
+        switch (mixerOutFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
+                    float /*TO*/, float /*TI*/, int32_t /*TA*/>;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
+                    int16_t, float, int32_t>;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
+            break;
+        }
+        break;
+    case AUDIO_FORMAT_PCM_16_BIT:
+        switch (mixerOutFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
+                    float, int16_t, int32_t>;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
+                    int16_t, int16_t, int32_t>;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
+            break;
+        }
+        break;
+    default:
+        LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
+        break;
+    }
+    return NULL;
+}
+
+// ----------------------------------------------------------------------------
+} // namespace android
diff --git a/services/audioflinger/AudioMixerOps.h b/media/libaudioprocessing/AudioMixerOps.h
similarity index 100%
rename from services/audioflinger/AudioMixerOps.h
rename to media/libaudioprocessing/AudioMixerOps.h
diff --git a/media/libaudioprocessing/AudioResampler.cpp b/media/libaudioprocessing/AudioResampler.cpp
new file mode 100644
index 0000000..c761b38
--- /dev/null
+++ b/media/libaudioprocessing/AudioResampler.cpp
@@ -0,0 +1,787 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioResampler"
+//#define LOG_NDEBUG 0
+
+#include <pthread.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+#include <cutils/properties.h>
+#include <log/log.h>
+
+#include <audio_utils/primitives.h>
+#include <media/AudioResampler.h>
+#include "AudioResamplerSinc.h"
+#include "AudioResamplerCubic.h"
+#include "AudioResamplerDyn.h"
+
+#ifdef __arm__
+    // bug 13102576
+    //#define ASM_ARM_RESAMP1 // enable asm optimisation for ResamplerOrder1
+#endif
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class AudioResamplerOrder1 : public AudioResampler {
+public:
+    AudioResamplerOrder1(int inChannelCount, int32_t sampleRate) :
+        AudioResampler(inChannelCount, sampleRate, LOW_QUALITY), mX0L(0), mX0R(0) {
+    }
+    virtual size_t resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+private:
+    // number of bits used in interpolation multiply - 15 bits avoids overflow
+    static const int kNumInterpBits = 15;
+
+    // bits to shift the phase fraction down to avoid overflow
+    static const int kPreInterpShift = kNumPhaseBits - kNumInterpBits;
+
+    void init() {}
+    size_t resampleMono16(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+    size_t resampleStereo16(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
+    void AsmMono16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
+            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
+            uint32_t &phaseFraction, uint32_t phaseIncrement);
+    void AsmStereo16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
+            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
+            uint32_t &phaseFraction, uint32_t phaseIncrement);
+#endif  // ASM_ARM_RESAMP1
+
+    static inline int32_t Interp(int32_t x0, int32_t x1, uint32_t f) {
+        return x0 + (((x1 - x0) * (int32_t)(f >> kPreInterpShift)) >> kNumInterpBits);
+    }
+    static inline void Advance(size_t* index, uint32_t* frac, uint32_t inc) {
+        *frac += inc;
+        *index += (size_t)(*frac >> kNumPhaseBits);
+        *frac &= kPhaseMask;
+    }
+    int mX0L;
+    int mX0R;
+};
+
+/*static*/
+const double AudioResampler::kPhaseMultiplier = 1L << AudioResampler::kNumPhaseBits;
+
+bool AudioResampler::qualityIsSupported(src_quality quality)
+{
+    switch (quality) {
+    case DEFAULT_QUALITY:
+    case LOW_QUALITY:
+    case MED_QUALITY:
+    case HIGH_QUALITY:
+    case VERY_HIGH_QUALITY:
+    case DYN_LOW_QUALITY:
+    case DYN_MED_QUALITY:
+    case DYN_HIGH_QUALITY:
+        return true;
+    default:
+        return false;
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+static pthread_once_t once_control = PTHREAD_ONCE_INIT;
+static AudioResampler::src_quality defaultQuality = AudioResampler::DEFAULT_QUALITY;
+
+void AudioResampler::init_routine()
+{
+    char value[PROPERTY_VALUE_MAX];
+    if (property_get("af.resampler.quality", value, NULL) > 0) {
+        char *endptr;
+        unsigned long l = strtoul(value, &endptr, 0);
+        if (*endptr == '\0') {
+            defaultQuality = (src_quality) l;
+            ALOGD("forcing AudioResampler quality to %d", defaultQuality);
+            if (defaultQuality < DEFAULT_QUALITY || defaultQuality > DYN_HIGH_QUALITY) {
+                defaultQuality = DEFAULT_QUALITY;
+            }
+        }
+    }
+}
+
+uint32_t AudioResampler::qualityMHz(src_quality quality)
+{
+    switch (quality) {
+    default:
+    case DEFAULT_QUALITY:
+    case LOW_QUALITY:
+        return 3;
+    case MED_QUALITY:
+        return 6;
+    case HIGH_QUALITY:
+        return 20;
+    case VERY_HIGH_QUALITY:
+        return 34;
+    case DYN_LOW_QUALITY:
+        return 4;
+    case DYN_MED_QUALITY:
+        return 6;
+    case DYN_HIGH_QUALITY:
+        return 12;
+    }
+}
+
+static const uint32_t maxMHz = 130; // an arbitrary number that permits 3 VHQ, should be tunable
+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+static uint32_t currentMHz = 0;
+
+AudioResampler* AudioResampler::create(audio_format_t format, int inChannelCount,
+        int32_t sampleRate, src_quality quality) {
+
+    bool atFinalQuality;
+    if (quality == DEFAULT_QUALITY) {
+        // read the resampler default quality property the first time it is needed
+        int ok = pthread_once(&once_control, init_routine);
+        if (ok != 0) {
+            ALOGE("%s pthread_once failed: %d", __func__, ok);
+        }
+        quality = defaultQuality;
+        atFinalQuality = false;
+    } else {
+        atFinalQuality = true;
+    }
+
+    /* if the caller requests DEFAULT_QUALITY and af.resampler.property
+     * has not been set, the target resampler quality is set to DYN_MED_QUALITY,
+     * and allowed to "throttle" down to DYN_LOW_QUALITY if necessary
+     * due to estimated CPU load of having too many active resamplers
+     * (the code below the if).
+     */
+    if (quality == DEFAULT_QUALITY) {
+        quality = DYN_MED_QUALITY;
+    }
+
+    // naive implementation of CPU load throttling doesn't account for whether resampler is active
+    pthread_mutex_lock(&mutex);
+    for (;;) {
+        uint32_t deltaMHz = qualityMHz(quality);
+        uint32_t newMHz = currentMHz + deltaMHz;
+        if ((qualityIsSupported(quality) && newMHz <= maxMHz) || atFinalQuality) {
+            ALOGV("resampler load %u -> %u MHz due to delta +%u MHz from quality %d",
+                    currentMHz, newMHz, deltaMHz, quality);
+            currentMHz = newMHz;
+            break;
+        }
+        // not enough CPU available for proposed quality level, so try next lowest level
+        switch (quality) {
+        default:
+        case LOW_QUALITY:
+            atFinalQuality = true;
+            break;
+        case MED_QUALITY:
+            quality = LOW_QUALITY;
+            break;
+        case HIGH_QUALITY:
+            quality = MED_QUALITY;
+            break;
+        case VERY_HIGH_QUALITY:
+            quality = HIGH_QUALITY;
+            break;
+        case DYN_LOW_QUALITY:
+            atFinalQuality = true;
+            break;
+        case DYN_MED_QUALITY:
+            quality = DYN_LOW_QUALITY;
+            break;
+        case DYN_HIGH_QUALITY:
+            quality = DYN_MED_QUALITY;
+            break;
+        }
+    }
+    pthread_mutex_unlock(&mutex);
+
+    AudioResampler* resampler;
+
+    switch (quality) {
+    default:
+    case LOW_QUALITY:
+        ALOGV("Create linear Resampler");
+        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
+        resampler = new AudioResamplerOrder1(inChannelCount, sampleRate);
+        break;
+    case MED_QUALITY:
+        ALOGV("Create cubic Resampler");
+        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
+        resampler = new AudioResamplerCubic(inChannelCount, sampleRate);
+        break;
+    case HIGH_QUALITY:
+        ALOGV("Create HIGH_QUALITY sinc Resampler");
+        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
+        resampler = new AudioResamplerSinc(inChannelCount, sampleRate);
+        break;
+    case VERY_HIGH_QUALITY:
+        ALOGV("Create VERY_HIGH_QUALITY sinc Resampler = %d", quality);
+        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
+        resampler = new AudioResamplerSinc(inChannelCount, sampleRate, quality);
+        break;
+    case DYN_LOW_QUALITY:
+    case DYN_MED_QUALITY:
+    case DYN_HIGH_QUALITY:
+        ALOGV("Create dynamic Resampler = %d", quality);
+        if (format == AUDIO_FORMAT_PCM_FLOAT) {
+            resampler = new AudioResamplerDyn<float, float, float>(inChannelCount,
+                    sampleRate, quality);
+        } else {
+            LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
+            if (quality == DYN_HIGH_QUALITY) {
+                resampler = new AudioResamplerDyn<int32_t, int16_t, int32_t>(inChannelCount,
+                        sampleRate, quality);
+            } else {
+                resampler = new AudioResamplerDyn<int16_t, int16_t, int32_t>(inChannelCount,
+                        sampleRate, quality);
+            }
+        }
+        break;
+    }
+
+    // initialize resampler
+    resampler->init();
+    return resampler;
+}
+
+AudioResampler::AudioResampler(int inChannelCount,
+        int32_t sampleRate, src_quality quality) :
+        mChannelCount(inChannelCount),
+        mSampleRate(sampleRate), mInSampleRate(sampleRate), mInputIndex(0),
+        mPhaseFraction(0),
+        mQuality(quality) {
+
+    const int maxChannels = quality < DYN_LOW_QUALITY ? 2 : 8;
+    if (inChannelCount < 1
+            || inChannelCount > maxChannels) {
+        LOG_ALWAYS_FATAL("Unsupported sample format %d quality %d channels",
+                quality, inChannelCount);
+    }
+    if (sampleRate <= 0) {
+        LOG_ALWAYS_FATAL("Unsupported sample rate %d Hz", sampleRate);
+    }
+
+    // initialize common members
+    mVolume[0] = mVolume[1] = 0;
+    mBuffer.frameCount = 0;
+}
+
+AudioResampler::~AudioResampler() {
+    pthread_mutex_lock(&mutex);
+    src_quality quality = getQuality();
+    uint32_t deltaMHz = qualityMHz(quality);
+    int32_t newMHz = currentMHz - deltaMHz;
+    ALOGV("resampler load %u -> %d MHz due to delta -%u MHz from quality %d",
+            currentMHz, newMHz, deltaMHz, quality);
+    LOG_ALWAYS_FATAL_IF(newMHz < 0, "negative resampler load %d MHz", newMHz);
+    currentMHz = newMHz;
+    pthread_mutex_unlock(&mutex);
+}
+
+void AudioResampler::setSampleRate(int32_t inSampleRate) {
+    mInSampleRate = inSampleRate;
+    mPhaseIncrement = (uint32_t)((kPhaseMultiplier * inSampleRate) / mSampleRate);
+}
+
+void AudioResampler::setVolume(float left, float right) {
+    // TODO: Implement anti-zipper filter
+    // convert to U4.12 for internal integer use (round down)
+    // integer volume values are clamped to 0 to UNITY_GAIN.
+    mVolume[0] = u4_12_from_float(clampFloatVol(left));
+    mVolume[1] = u4_12_from_float(clampFloatVol(right));
+}
+
+void AudioResampler::reset() {
+    mInputIndex = 0;
+    mPhaseFraction = 0;
+    mBuffer.frameCount = 0;
+}
+
+// ----------------------------------------------------------------------------
+
+size_t AudioResamplerOrder1::resample(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    // should never happen, but we overflow if it does
+    // ALOG_ASSERT(outFrameCount < 32767);
+
+    // select the appropriate resampler
+    switch (mChannelCount) {
+    case 1:
+        return resampleMono16(out, outFrameCount, provider);
+    case 2:
+        return resampleStereo16(out, outFrameCount, provider);
+    default:
+        LOG_ALWAYS_FATAL("invalid channel count: %d", mChannelCount);
+        return 0;
+    }
+}
+
+size_t AudioResamplerOrder1::resampleStereo16(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    int32_t vl = mVolume[0];
+    int32_t vr = mVolume[1];
+
+    size_t inputIndex = mInputIndex;
+    uint32_t phaseFraction = mPhaseFraction;
+    uint32_t phaseIncrement = mPhaseIncrement;
+    size_t outputIndex = 0;
+    size_t outputSampleCount = outFrameCount * 2;
+    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
+
+    // ALOGE("starting resample %d frames, inputIndex=%d, phaseFraction=%d, phaseIncrement=%d",
+    //      outFrameCount, inputIndex, phaseFraction, phaseIncrement);
+
+    while (outputIndex < outputSampleCount) {
+
+        // buffer is empty, fetch a new one
+        while (mBuffer.frameCount == 0) {
+            mBuffer.frameCount = inFrameCount;
+            provider->getNextBuffer(&mBuffer);
+            if (mBuffer.raw == NULL) {
+                goto resampleStereo16_exit;
+            }
+
+            // ALOGE("New buffer fetched: %d frames", mBuffer.frameCount);
+            if (mBuffer.frameCount > inputIndex) break;
+
+            inputIndex -= mBuffer.frameCount;
+            mX0L = mBuffer.i16[mBuffer.frameCount*2-2];
+            mX0R = mBuffer.i16[mBuffer.frameCount*2-1];
+            provider->releaseBuffer(&mBuffer);
+            // mBuffer.frameCount == 0 now so we reload a new buffer
+        }
+
+        int16_t *in = mBuffer.i16;
+
+        // handle boundary case
+        while (inputIndex == 0) {
+            // ALOGE("boundary case");
+            out[outputIndex++] += vl * Interp(mX0L, in[0], phaseFraction);
+            out[outputIndex++] += vr * Interp(mX0R, in[1], phaseFraction);
+            Advance(&inputIndex, &phaseFraction, phaseIncrement);
+            if (outputIndex == outputSampleCount) {
+                break;
+            }
+        }
+
+        // process input samples
+        // ALOGE("general case");
+
+#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
+        if (inputIndex + 2 < mBuffer.frameCount) {
+            int32_t* maxOutPt;
+            int32_t maxInIdx;
+
+            maxOutPt = out + (outputSampleCount - 2);   // 2 because 2 frames per loop
+            maxInIdx = mBuffer.frameCount - 2;
+            AsmStereo16Loop(in, maxOutPt, maxInIdx, outputIndex, out, inputIndex, vl, vr,
+                    phaseFraction, phaseIncrement);
+        }
+#endif  // ASM_ARM_RESAMP1
+
+        while (outputIndex < outputSampleCount && inputIndex < mBuffer.frameCount) {
+            out[outputIndex++] += vl * Interp(in[inputIndex*2-2],
+                    in[inputIndex*2], phaseFraction);
+            out[outputIndex++] += vr * Interp(in[inputIndex*2-1],
+                    in[inputIndex*2+1], phaseFraction);
+            Advance(&inputIndex, &phaseFraction, phaseIncrement);
+        }
+
+        // ALOGE("loop done - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
+
+        // if done with buffer, save samples
+        if (inputIndex >= mBuffer.frameCount) {
+            inputIndex -= mBuffer.frameCount;
+
+            // ALOGE("buffer done, new input index %d", inputIndex);
+
+            mX0L = mBuffer.i16[mBuffer.frameCount*2-2];
+            mX0R = mBuffer.i16[mBuffer.frameCount*2-1];
+            provider->releaseBuffer(&mBuffer);
+
+            // verify that the releaseBuffer resets the buffer frameCount
+            // ALOG_ASSERT(mBuffer.frameCount == 0);
+        }
+    }
+
+    // ALOGE("output buffer full - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
+
+resampleStereo16_exit:
+    // save state
+    mInputIndex = inputIndex;
+    mPhaseFraction = phaseFraction;
+    return outputIndex / 2 /* channels for stereo */;
+}
+
+size_t AudioResamplerOrder1::resampleMono16(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    int32_t vl = mVolume[0];
+    int32_t vr = mVolume[1];
+
+    size_t inputIndex = mInputIndex;
+    uint32_t phaseFraction = mPhaseFraction;
+    uint32_t phaseIncrement = mPhaseIncrement;
+    size_t outputIndex = 0;
+    size_t outputSampleCount = outFrameCount * 2;
+    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
+
+    // ALOGE("starting resample %d frames, inputIndex=%d, phaseFraction=%d, phaseIncrement=%d",
+    //      outFrameCount, inputIndex, phaseFraction, phaseIncrement);
+    while (outputIndex < outputSampleCount) {
+        // buffer is empty, fetch a new one
+        while (mBuffer.frameCount == 0) {
+            mBuffer.frameCount = inFrameCount;
+            provider->getNextBuffer(&mBuffer);
+            if (mBuffer.raw == NULL) {
+                mInputIndex = inputIndex;
+                mPhaseFraction = phaseFraction;
+                goto resampleMono16_exit;
+            }
+            // ALOGE("New buffer fetched: %d frames", mBuffer.frameCount);
+            if (mBuffer.frameCount >  inputIndex) break;
+
+            inputIndex -= mBuffer.frameCount;
+            mX0L = mBuffer.i16[mBuffer.frameCount-1];
+            provider->releaseBuffer(&mBuffer);
+            // mBuffer.frameCount == 0 now so we reload a new buffer
+        }
+        int16_t *in = mBuffer.i16;
+
+        // handle boundary case
+        while (inputIndex == 0) {
+            // ALOGE("boundary case");
+            int32_t sample = Interp(mX0L, in[0], phaseFraction);
+            out[outputIndex++] += vl * sample;
+            out[outputIndex++] += vr * sample;
+            Advance(&inputIndex, &phaseFraction, phaseIncrement);
+            if (outputIndex == outputSampleCount) {
+                break;
+            }
+        }
+
+        // process input samples
+        // ALOGE("general case");
+
+#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
+        if (inputIndex + 2 < mBuffer.frameCount) {
+            int32_t* maxOutPt;
+            int32_t maxInIdx;
+
+            maxOutPt = out + (outputSampleCount - 2);
+            maxInIdx = (int32_t)mBuffer.frameCount - 2;
+                AsmMono16Loop(in, maxOutPt, maxInIdx, outputIndex, out, inputIndex, vl, vr,
+                        phaseFraction, phaseIncrement);
+        }
+#endif  // ASM_ARM_RESAMP1
+
+        while (outputIndex < outputSampleCount && inputIndex < mBuffer.frameCount) {
+            int32_t sample = Interp(in[inputIndex-1], in[inputIndex],
+                    phaseFraction);
+            out[outputIndex++] += vl * sample;
+            out[outputIndex++] += vr * sample;
+            Advance(&inputIndex, &phaseFraction, phaseIncrement);
+        }
+
+
+        // ALOGE("loop done - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
+
+        // if done with buffer, save samples
+        if (inputIndex >= mBuffer.frameCount) {
+            inputIndex -= mBuffer.frameCount;
+
+            // ALOGE("buffer done, new input index %d", inputIndex);
+
+            mX0L = mBuffer.i16[mBuffer.frameCount-1];
+            provider->releaseBuffer(&mBuffer);
+
+            // verify that the releaseBuffer resets the buffer frameCount
+            // ALOG_ASSERT(mBuffer.frameCount == 0);
+        }
+    }
+
+    // ALOGE("output buffer full - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
+
+resampleMono16_exit:
+    // save state
+    mInputIndex = inputIndex;
+    mPhaseFraction = phaseFraction;
+    return outputIndex;
+}
+
+#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
+
+/*******************************************************************
+*
+*   AsmMono16Loop
+*   asm optimized monotonic loop version; one loop is 2 frames
+*   Input:
+*       in : pointer on input samples
+*       maxOutPt : pointer on first not filled
+*       maxInIdx : index on first not used
+*       outputIndex : pointer on current output index
+*       out : pointer on output buffer
+*       inputIndex : pointer on current input index
+*       vl, vr : left and right gain
+*       phaseFraction : pointer on current phase fraction
+*       phaseIncrement
+*   Ouput:
+*       outputIndex :
+*       out : updated buffer
+*       inputIndex : index of next to use
+*       phaseFraction : phase fraction for next interpolation
+*
+*******************************************************************/
+__attribute__((noinline))
+void AudioResamplerOrder1::AsmMono16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
+            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
+            uint32_t &phaseFraction, uint32_t phaseIncrement)
+{
+    (void)maxOutPt; // remove unused parameter warnings
+    (void)maxInIdx;
+    (void)outputIndex;
+    (void)out;
+    (void)inputIndex;
+    (void)vl;
+    (void)vr;
+    (void)phaseFraction;
+    (void)phaseIncrement;
+    (void)in;
+#define MO_PARAM5   "36"        // offset of parameter 5 (outputIndex)
+
+    asm(
+        "stmfd  sp!, {r4, r5, r6, r7, r8, r9, r10, r11, lr}\n"
+        // get parameters
+        "   ldr r6, [sp, #" MO_PARAM5 " + 20]\n"    // &phaseFraction
+        "   ldr r6, [r6]\n"                         // phaseFraction
+        "   ldr r7, [sp, #" MO_PARAM5 " + 8]\n"     // &inputIndex
+        "   ldr r7, [r7]\n"                         // inputIndex
+        "   ldr r8, [sp, #" MO_PARAM5 " + 4]\n"     // out
+        "   ldr r0, [sp, #" MO_PARAM5 " + 0]\n"     // &outputIndex
+        "   ldr r0, [r0]\n"                         // outputIndex
+        "   add r8, r8, r0, asl #2\n"               // curOut
+        "   ldr r9, [sp, #" MO_PARAM5 " + 24]\n"    // phaseIncrement
+        "   ldr r10, [sp, #" MO_PARAM5 " + 12]\n"   // vl
+        "   ldr r11, [sp, #" MO_PARAM5 " + 16]\n"   // vr
+
+        // r0 pin, x0, Samp
+
+        // r1 in
+        // r2 maxOutPt
+        // r3 maxInIdx
+
+        // r4 x1, i1, i3, Out1
+        // r5 out0
+
+        // r6 frac
+        // r7 inputIndex
+        // r8 curOut
+
+        // r9 inc
+        // r10 vl
+        // r11 vr
+
+        // r12
+        // r13 sp
+        // r14
+
+        // the following loop works on 2 frames
+
+        "1:\n"
+        "   cmp r8, r2\n"                   // curOut - maxCurOut
+        "   bcs 2f\n"
+
+#define MO_ONE_FRAME \
+    "   add r0, r1, r7, asl #1\n"       /* in + inputIndex */\
+    "   ldrsh r4, [r0]\n"               /* in[inputIndex] */\
+    "   ldr r5, [r8]\n"                 /* out[outputIndex] */\
+    "   ldrsh r0, [r0, #-2]\n"          /* in[inputIndex-1] */\
+    "   bic r6, r6, #0xC0000000\n"      /* phaseFraction & ... */\
+    "   sub r4, r4, r0\n"               /* in[inputIndex] - in[inputIndex-1] */\
+    "   mov r4, r4, lsl #2\n"           /* <<2 */\
+    "   smulwt r4, r4, r6\n"            /* (x1-x0)*.. */\
+    "   add r6, r6, r9\n"               /* phaseFraction + phaseIncrement */\
+    "   add r0, r0, r4\n"               /* x0 - (..) */\
+    "   mla r5, r0, r10, r5\n"          /* vl*interp + out[] */\
+    "   ldr r4, [r8, #4]\n"             /* out[outputIndex+1] */\
+    "   str r5, [r8], #4\n"             /* out[outputIndex++] = ... */\
+    "   mla r4, r0, r11, r4\n"          /* vr*interp + out[] */\
+    "   add r7, r7, r6, lsr #30\n"      /* inputIndex + phaseFraction>>30 */\
+    "   str r4, [r8], #4\n"             /* out[outputIndex++] = ... */
+
+        MO_ONE_FRAME    // frame 1
+        MO_ONE_FRAME    // frame 2
+
+        "   cmp r7, r3\n"                   // inputIndex - maxInIdx
+        "   bcc 1b\n"
+        "2:\n"
+
+        "   bic r6, r6, #0xC0000000\n"             // phaseFraction & ...
+        // save modified values
+        "   ldr r0, [sp, #" MO_PARAM5 " + 20]\n"    // &phaseFraction
+        "   str r6, [r0]\n"                         // phaseFraction
+        "   ldr r0, [sp, #" MO_PARAM5 " + 8]\n"     // &inputIndex
+        "   str r7, [r0]\n"                         // inputIndex
+        "   ldr r0, [sp, #" MO_PARAM5 " + 4]\n"     // out
+        "   sub r8, r0\n"                           // curOut - out
+        "   asr r8, #2\n"                           // new outputIndex
+        "   ldr r0, [sp, #" MO_PARAM5 " + 0]\n"     // &outputIndex
+        "   str r8, [r0]\n"                         // save outputIndex
+
+        "   ldmfd   sp!, {r4, r5, r6, r7, r8, r9, r10, r11, pc}\n"
+    );
+}
+
+/*******************************************************************
+*
+*   AsmStereo16Loop
+*   asm optimized stereo loop version; one loop is 2 frames
+*   Input:
+*       in : pointer on input samples
+*       maxOutPt : pointer on first not filled
+*       maxInIdx : index on first not used
+*       outputIndex : pointer on current output index
+*       out : pointer on output buffer
+*       inputIndex : pointer on current input index
+*       vl, vr : left and right gain
+*       phaseFraction : pointer on current phase fraction
+*       phaseIncrement
+*   Ouput:
+*       outputIndex :
+*       out : updated buffer
+*       inputIndex : index of next to use
+*       phaseFraction : phase fraction for next interpolation
+*
+*******************************************************************/
+__attribute__((noinline))
+void AudioResamplerOrder1::AsmStereo16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
+            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
+            uint32_t &phaseFraction, uint32_t phaseIncrement)
+{
+    (void)maxOutPt; // remove unused parameter warnings
+    (void)maxInIdx;
+    (void)outputIndex;
+    (void)out;
+    (void)inputIndex;
+    (void)vl;
+    (void)vr;
+    (void)phaseFraction;
+    (void)phaseIncrement;
+    (void)in;
+#define ST_PARAM5    "40"     // offset of parameter 5 (outputIndex)
+    asm(
+        "stmfd  sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, lr}\n"
+        // get parameters
+        "   ldr r6, [sp, #" ST_PARAM5 " + 20]\n"    // &phaseFraction
+        "   ldr r6, [r6]\n"                         // phaseFraction
+        "   ldr r7, [sp, #" ST_PARAM5 " + 8]\n"     // &inputIndex
+        "   ldr r7, [r7]\n"                         // inputIndex
+        "   ldr r8, [sp, #" ST_PARAM5 " + 4]\n"     // out
+        "   ldr r0, [sp, #" ST_PARAM5 " + 0]\n"     // &outputIndex
+        "   ldr r0, [r0]\n"                         // outputIndex
+        "   add r8, r8, r0, asl #2\n"               // curOut
+        "   ldr r9, [sp, #" ST_PARAM5 " + 24]\n"    // phaseIncrement
+        "   ldr r10, [sp, #" ST_PARAM5 " + 12]\n"   // vl
+        "   ldr r11, [sp, #" ST_PARAM5 " + 16]\n"   // vr
+
+        // r0 pin, x0, Samp
+
+        // r1 in
+        // r2 maxOutPt
+        // r3 maxInIdx
+
+        // r4 x1, i1, i3, out1
+        // r5 out0
+
+        // r6 frac
+        // r7 inputIndex
+        // r8 curOut
+
+        // r9 inc
+        // r10 vl
+        // r11 vr
+
+        // r12 temporary
+        // r13 sp
+        // r14
+
+        "3:\n"
+        "   cmp r8, r2\n"                   // curOut - maxCurOut
+        "   bcs 4f\n"
+
+#define ST_ONE_FRAME \
+    "   bic r6, r6, #0xC0000000\n"      /* phaseFraction & ... */\
+\
+    "   add r0, r1, r7, asl #2\n"       /* in + 2*inputIndex */\
+\
+    "   ldrsh r4, [r0]\n"               /* in[2*inputIndex] */\
+    "   ldr r5, [r8]\n"                 /* out[outputIndex] */\
+    "   ldrsh r12, [r0, #-4]\n"         /* in[2*inputIndex-2] */\
+    "   sub r4, r4, r12\n"              /* in[2*InputIndex] - in[2*InputIndex-2] */\
+    "   mov r4, r4, lsl #2\n"           /* <<2 */\
+    "   smulwt r4, r4, r6\n"            /* (x1-x0)*.. */\
+    "   add r12, r12, r4\n"             /* x0 - (..) */\
+    "   mla r5, r12, r10, r5\n"         /* vl*interp + out[] */\
+    "   ldr r4, [r8, #4]\n"             /* out[outputIndex+1] */\
+    "   str r5, [r8], #4\n"             /* out[outputIndex++] = ... */\
+\
+    "   ldrsh r12, [r0, #+2]\n"         /* in[2*inputIndex+1] */\
+    "   ldrsh r0, [r0, #-2]\n"          /* in[2*inputIndex-1] */\
+    "   sub r12, r12, r0\n"             /* in[2*InputIndex] - in[2*InputIndex-2] */\
+    "   mov r12, r12, lsl #2\n"         /* <<2 */\
+    "   smulwt r12, r12, r6\n"          /* (x1-x0)*.. */\
+    "   add r12, r0, r12\n"             /* x0 - (..) */\
+    "   mla r4, r12, r11, r4\n"         /* vr*interp + out[] */\
+    "   str r4, [r8], #4\n"             /* out[outputIndex++] = ... */\
+\
+    "   add r6, r6, r9\n"               /* phaseFraction + phaseIncrement */\
+    "   add r7, r7, r6, lsr #30\n"      /* inputIndex + phaseFraction>>30 */
+
+    ST_ONE_FRAME    // frame 1
+    ST_ONE_FRAME    // frame 1
+
+        "   cmp r7, r3\n"                       // inputIndex - maxInIdx
+        "   bcc 3b\n"
+        "4:\n"
+
+        "   bic r6, r6, #0xC0000000\n"              // phaseFraction & ...
+        // save modified values
+        "   ldr r0, [sp, #" ST_PARAM5 " + 20]\n"    // &phaseFraction
+        "   str r6, [r0]\n"                         // phaseFraction
+        "   ldr r0, [sp, #" ST_PARAM5 " + 8]\n"     // &inputIndex
+        "   str r7, [r0]\n"                         // inputIndex
+        "   ldr r0, [sp, #" ST_PARAM5 " + 4]\n"     // out
+        "   sub r8, r0\n"                           // curOut - out
+        "   asr r8, #2\n"                           // new outputIndex
+        "   ldr r0, [sp, #" ST_PARAM5 " + 0]\n"     // &outputIndex
+        "   str r8, [r0]\n"                         // save outputIndex
+
+        "   ldmfd   sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, pc}\n"
+    );
+}
+
+#endif  // ASM_ARM_RESAMP1
+
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libaudioprocessing/AudioResamplerCubic.cpp b/media/libaudioprocessing/AudioResamplerCubic.cpp
new file mode 100644
index 0000000..9bcd8e1
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerCubic.cpp
@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioResamplerCubic"
+
+#include <stdint.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include <log/log.h>
+
+#include "AudioResamplerCubic.h"
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+void AudioResamplerCubic::init() {
+    memset(&left, 0, sizeof(state));
+    memset(&right, 0, sizeof(state));
+}
+
+size_t AudioResamplerCubic::resample(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    // should never happen, but we overflow if it does
+    // ALOG_ASSERT(outFrameCount < 32767);
+
+    // select the appropriate resampler
+    switch (mChannelCount) {
+    case 1:
+        return resampleMono16(out, outFrameCount, provider);
+    case 2:
+        return resampleStereo16(out, outFrameCount, provider);
+    default:
+        LOG_ALWAYS_FATAL("invalid channel count: %d", mChannelCount);
+        return 0;
+    }
+}
+
+size_t AudioResamplerCubic::resampleStereo16(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    int32_t vl = mVolume[0];
+    int32_t vr = mVolume[1];
+
+    size_t inputIndex = mInputIndex;
+    uint32_t phaseFraction = mPhaseFraction;
+    uint32_t phaseIncrement = mPhaseIncrement;
+    size_t outputIndex = 0;
+    size_t outputSampleCount = outFrameCount * 2;
+    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
+
+    // fetch first buffer
+    if (mBuffer.frameCount == 0) {
+        mBuffer.frameCount = inFrameCount;
+        provider->getNextBuffer(&mBuffer);
+        if (mBuffer.raw == NULL) {
+            return 0;
+        }
+        // ALOGW("New buffer: offset=%p, frames=%dn", mBuffer.raw, mBuffer.frameCount);
+    }
+    int16_t *in = mBuffer.i16;
+
+    while (outputIndex < outputSampleCount) {
+        int32_t x;
+
+        // calculate output sample
+        x = phaseFraction >> kPreInterpShift;
+        out[outputIndex++] += vl * interp(&left, x);
+        out[outputIndex++] += vr * interp(&right, x);
+        // out[outputIndex++] += vr * in[inputIndex*2];
+
+        // increment phase
+        phaseFraction += phaseIncrement;
+        uint32_t indexIncrement = (phaseFraction >> kNumPhaseBits);
+        phaseFraction &= kPhaseMask;
+
+        // time to fetch another sample
+        while (indexIncrement--) {
+
+            inputIndex++;
+            if (inputIndex == mBuffer.frameCount) {
+                inputIndex = 0;
+                provider->releaseBuffer(&mBuffer);
+                mBuffer.frameCount = inFrameCount;
+                provider->getNextBuffer(&mBuffer);
+                if (mBuffer.raw == NULL) {
+                    goto save_state;  // ugly, but efficient
+                }
+                in = mBuffer.i16;
+                // ALOGW("New buffer: offset=%p, frames=%d", mBuffer.raw, mBuffer.frameCount);
+            }
+
+            // advance sample state
+            advance(&left, in[inputIndex*2]);
+            advance(&right, in[inputIndex*2+1]);
+        }
+    }
+
+save_state:
+    // ALOGW("Done: index=%d, fraction=%u", inputIndex, phaseFraction);
+    mInputIndex = inputIndex;
+    mPhaseFraction = phaseFraction;
+    return outputIndex / 2 /* channels for stereo */;
+}
+
+size_t AudioResamplerCubic::resampleMono16(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    int32_t vl = mVolume[0];
+    int32_t vr = mVolume[1];
+
+    size_t inputIndex = mInputIndex;
+    uint32_t phaseFraction = mPhaseFraction;
+    uint32_t phaseIncrement = mPhaseIncrement;
+    size_t outputIndex = 0;
+    size_t outputSampleCount = outFrameCount * 2;
+    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
+
+    // fetch first buffer
+    if (mBuffer.frameCount == 0) {
+        mBuffer.frameCount = inFrameCount;
+        provider->getNextBuffer(&mBuffer);
+        if (mBuffer.raw == NULL) {
+            return 0;
+        }
+        // ALOGW("New buffer: offset=%p, frames=%d", mBuffer.raw, mBuffer.frameCount);
+    }
+    int16_t *in = mBuffer.i16;
+
+    while (outputIndex < outputSampleCount) {
+        int32_t sample;
+        int32_t x;
+
+        // calculate output sample
+        x = phaseFraction >> kPreInterpShift;
+        sample = interp(&left, x);
+        out[outputIndex++] += vl * sample;
+        out[outputIndex++] += vr * sample;
+
+        // increment phase
+        phaseFraction += phaseIncrement;
+        uint32_t indexIncrement = (phaseFraction >> kNumPhaseBits);
+        phaseFraction &= kPhaseMask;
+
+        // time to fetch another sample
+        while (indexIncrement--) {
+
+            inputIndex++;
+            if (inputIndex == mBuffer.frameCount) {
+                inputIndex = 0;
+                provider->releaseBuffer(&mBuffer);
+                mBuffer.frameCount = inFrameCount;
+                provider->getNextBuffer(&mBuffer);
+                if (mBuffer.raw == NULL) {
+                    goto save_state;  // ugly, but efficient
+                }
+                // ALOGW("New buffer: offset=%p, frames=%dn", mBuffer.raw, mBuffer.frameCount);
+                in = mBuffer.i16;
+            }
+
+            // advance sample state
+            advance(&left, in[inputIndex]);
+        }
+    }
+
+save_state:
+    // ALOGW("Done: index=%d, fraction=%u", inputIndex, phaseFraction);
+    mInputIndex = inputIndex;
+    mPhaseFraction = phaseFraction;
+    return outputIndex;
+}
+
+// ----------------------------------------------------------------------------
+} // namespace android
diff --git a/media/libaudioprocessing/AudioResamplerCubic.h b/media/libaudioprocessing/AudioResamplerCubic.h
new file mode 100644
index 0000000..defaf33
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerCubic.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_CUBIC_H
+#define ANDROID_AUDIO_RESAMPLER_CUBIC_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <android/log.h>
+
+#include <media/AudioResampler.h>
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+class AudioResamplerCubic : public AudioResampler {
+public:
+    AudioResamplerCubic(int inChannelCount, int32_t sampleRate) :
+        AudioResampler(inChannelCount, sampleRate, MED_QUALITY) {
+    }
+    virtual size_t resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+private:
+    // number of bits used in interpolation multiply - 14 bits avoids overflow
+    static const int kNumInterpBits = 14;
+
+    // bits to shift the phase fraction down to avoid overflow
+    static const int kPreInterpShift = kNumPhaseBits - kNumInterpBits;
+    typedef struct {
+        int32_t a, b, c, y0, y1, y2, y3;
+    } state;
+    void init();
+    size_t resampleMono16(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+    size_t resampleStereo16(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+    static inline int32_t interp(state* p, int32_t x) {
+        return (((((p->a * x >> 14) + p->b) * x >> 14) + p->c) * x >> 14) + p->y1;
+    }
+    static inline void advance(state* p, int16_t in) {
+        p->y0 = p->y1;
+        p->y1 = p->y2;
+        p->y2 = p->y3;
+        p->y3 = in;
+        p->a = (3 * (p->y1 - p->y2) - p->y0 + p->y3) >> 1;
+        p->b = (p->y2 << 1) + p->y0 - (((5 * p->y1 + p->y3)) >> 1);
+        p->c = (p->y2 - p->y0) >> 1;
+    }
+    state left, right;
+};
+
+// ----------------------------------------------------------------------------
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_CUBIC_H*/
diff --git a/media/libaudioprocessing/AudioResamplerDyn.cpp b/media/libaudioprocessing/AudioResamplerDyn.cpp
new file mode 100644
index 0000000..8f7b982
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerDyn.cpp
@@ -0,0 +1,633 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioResamplerDyn"
+//#define LOG_NDEBUG 0
+
+#include <malloc.h>
+#include <string.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+#include <math.h>
+
+#include <cutils/compiler.h>
+#include <cutils/properties.h>
+#include <utils/Debug.h>
+#include <utils/Log.h>
+#include <audio_utils/primitives.h>
+
+#include "AudioResamplerFirOps.h" // USE_NEON, USE_SSE and USE_INLINE_ASSEMBLY defined here
+#include "AudioResamplerFirProcess.h"
+#include "AudioResamplerFirProcessNeon.h"
+#include "AudioResamplerFirProcessSSE.h"
+#include "AudioResamplerFirGen.h" // requires math.h
+#include "AudioResamplerDyn.h"
+
+//#define DEBUG_RESAMPLER
+
+namespace android {
+
+/*
+ * InBuffer is a type agnostic input buffer.
+ *
+ * Layout of the state buffer for halfNumCoefs=8.
+ *
+ * [rrrrrrppppppppnnnnnnnnrrrrrrrrrrrrrrrrrrr.... rrrrrrr]
+ *  S            I                                R
+ *
+ * S = mState
+ * I = mImpulse
+ * R = mRingFull
+ * p = past samples, convoluted with the (p)ositive side of sinc()
+ * n = future samples, convoluted with the (n)egative side of sinc()
+ * r = extra space for implementing the ring buffer
+ */
+
+template<typename TC, typename TI, typename TO>
+AudioResamplerDyn<TC, TI, TO>::InBuffer::InBuffer()
+    : mState(NULL), mImpulse(NULL), mRingFull(NULL), mStateCount(0)
+{
+}
+
+template<typename TC, typename TI, typename TO>
+AudioResamplerDyn<TC, TI, TO>::InBuffer::~InBuffer()
+{
+    init();
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::InBuffer::init()
+{
+    free(mState);
+    mState = NULL;
+    mImpulse = NULL;
+    mRingFull = NULL;
+    mStateCount = 0;
+}
+
+// resizes the state buffer to accommodate the appropriate filter length
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::InBuffer::resize(int CHANNELS, int halfNumCoefs)
+{
+    // calculate desired state size
+    size_t stateCount = halfNumCoefs * CHANNELS * 2 * kStateSizeMultipleOfFilterLength;
+
+    // check if buffer needs resizing
+    if (mState
+            && stateCount == mStateCount
+            && mRingFull-mState == (ssize_t) (mStateCount-halfNumCoefs*CHANNELS)) {
+        return;
+    }
+
+    // create new buffer
+    TI* state = NULL;
+    (void)posix_memalign(reinterpret_cast<void**>(&state), 32, stateCount*sizeof(*state));
+    memset(state, 0, stateCount*sizeof(*state));
+
+    // attempt to preserve state
+    if (mState) {
+        TI* srcLo = mImpulse - halfNumCoefs*CHANNELS;
+        TI* srcHi = mImpulse + halfNumCoefs*CHANNELS;
+        TI* dst = state;
+
+        if (srcLo < mState) {
+            dst += mState-srcLo;
+            srcLo = mState;
+        }
+        if (srcHi > mState + mStateCount) {
+            srcHi = mState + mStateCount;
+        }
+        memcpy(dst, srcLo, (srcHi - srcLo) * sizeof(*srcLo));
+        free(mState);
+    }
+
+    // set class member vars
+    mState = state;
+    mStateCount = stateCount;
+    mImpulse = state + halfNumCoefs*CHANNELS; // actually one sample greater than needed
+    mRingFull = state + mStateCount - halfNumCoefs*CHANNELS;
+}
+
+// copy in the input data into the head (impulse+halfNumCoefs) of the buffer.
+template<typename TC, typename TI, typename TO>
+template<int CHANNELS>
+void AudioResamplerDyn<TC, TI, TO>::InBuffer::readAgain(TI*& impulse, const int halfNumCoefs,
+        const TI* const in, const size_t inputIndex)
+{
+    TI* head = impulse + halfNumCoefs*CHANNELS;
+    for (size_t i=0 ; i<CHANNELS ; i++) {
+        head[i] = in[inputIndex*CHANNELS + i];
+    }
+}
+
+// advance the impulse pointer, and load in data into the head (impulse+halfNumCoefs)
+template<typename TC, typename TI, typename TO>
+template<int CHANNELS>
+void AudioResamplerDyn<TC, TI, TO>::InBuffer::readAdvance(TI*& impulse, const int halfNumCoefs,
+        const TI* const in, const size_t inputIndex)
+{
+    impulse += CHANNELS;
+
+    if (CC_UNLIKELY(impulse >= mRingFull)) {
+        const size_t shiftDown = mRingFull - mState - halfNumCoefs*CHANNELS;
+        memcpy(mState, mState+shiftDown, halfNumCoefs*CHANNELS*2*sizeof(TI));
+        impulse -= shiftDown;
+    }
+    readAgain<CHANNELS>(impulse, halfNumCoefs, in, inputIndex);
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::InBuffer::reset()
+{
+    // clear resampler state
+    if (mState != nullptr) {
+        memset(mState, 0, mStateCount * sizeof(TI));
+    }
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::Constants::set(
+        int L, int halfNumCoefs, int inSampleRate, int outSampleRate)
+{
+    int bits = 0;
+    int lscale = inSampleRate/outSampleRate < 2 ? L - 1 :
+            static_cast<int>(static_cast<uint64_t>(L)*inSampleRate/outSampleRate);
+    for (int i=lscale; i; ++bits, i>>=1)
+        ;
+    mL = L;
+    mShift = kNumPhaseBits - bits;
+    mHalfNumCoefs = halfNumCoefs;
+}
+
+template<typename TC, typename TI, typename TO>
+AudioResamplerDyn<TC, TI, TO>::AudioResamplerDyn(
+        int inChannelCount, int32_t sampleRate, src_quality quality)
+    : AudioResampler(inChannelCount, sampleRate, quality),
+      mResampleFunc(0), mFilterSampleRate(0), mFilterQuality(DEFAULT_QUALITY),
+    mCoefBuffer(NULL)
+{
+    mVolumeSimd[0] = mVolumeSimd[1] = 0;
+    // The AudioResampler base class assumes we are always ready for 1:1 resampling.
+    // We reset mInSampleRate to 0, so setSampleRate() will calculate filters for
+    // setSampleRate() for 1:1. (May be removed if precalculated filters are used.)
+    mInSampleRate = 0;
+    mConstants.set(128, 8, mSampleRate, mSampleRate); // TODO: set better
+}
+
+template<typename TC, typename TI, typename TO>
+AudioResamplerDyn<TC, TI, TO>::~AudioResamplerDyn()
+{
+    free(mCoefBuffer);
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::init()
+{
+    mFilterSampleRate = 0; // always trigger new filter generation
+    mInBuffer.init();
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::setVolume(float left, float right)
+{
+    AudioResampler::setVolume(left, right);
+    if (is_same<TO, float>::value || is_same<TO, double>::value) {
+        mVolumeSimd[0] = static_cast<TO>(left);
+        mVolumeSimd[1] = static_cast<TO>(right);
+    } else {  // integer requires scaling to U4_28 (rounding down)
+        // integer volumes are clamped to 0 to UNITY_GAIN so there
+        // are no issues with signed overflow.
+        mVolumeSimd[0] = u4_28_from_float(clampFloatVol(left));
+        mVolumeSimd[1] = u4_28_from_float(clampFloatVol(right));
+    }
+}
+
+template<typename T> T max(T a, T b) {return a > b ? a : b;}
+
+template<typename T> T absdiff(T a, T b) {return a > b ? a - b : b - a;}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::createKaiserFir(Constants &c,
+        double stopBandAtten, int inSampleRate, int outSampleRate, double tbwCheat)
+{
+    TC* buf = NULL;
+    static const double atten = 0.9998;   // to avoid ripple overflow
+    double fcr;
+    double tbw = firKaiserTbw(c.mHalfNumCoefs, stopBandAtten);
+
+    (void)posix_memalign(reinterpret_cast<void**>(&buf), 32, (c.mL+1)*c.mHalfNumCoefs*sizeof(TC));
+    if (inSampleRate < outSampleRate) { // upsample
+        fcr = max(0.5*tbwCheat - tbw/2, tbw/2);
+    } else { // downsample
+        fcr = max(0.5*tbwCheat*outSampleRate/inSampleRate - tbw/2, tbw/2);
+    }
+    // create and set filter
+    firKaiserGen(buf, c.mL, c.mHalfNumCoefs, stopBandAtten, fcr, atten);
+    c.mFirCoefs = buf;
+    if (mCoefBuffer) {
+        free(mCoefBuffer);
+    }
+    mCoefBuffer = buf;
+#ifdef DEBUG_RESAMPLER
+    // print basic filter stats
+    printf("L:%d  hnc:%d  stopBandAtten:%lf  fcr:%lf  atten:%lf  tbw:%lf\n",
+            c.mL, c.mHalfNumCoefs, stopBandAtten, fcr, atten, tbw);
+    // test the filter and report results
+    double fp = (fcr - tbw/2)/c.mL;
+    double fs = (fcr + tbw/2)/c.mL;
+    double passMin, passMax, passRipple;
+    double stopMax, stopRipple;
+    testFir(buf, c.mL, c.mHalfNumCoefs, fp, fs, /*passSteps*/ 1000, /*stopSteps*/ 100000,
+            passMin, passMax, passRipple, stopMax, stopRipple);
+    printf("passband(%lf, %lf): %.8lf %.8lf %.8lf\n", 0., fp, passMin, passMax, passRipple);
+    printf("stopband(%lf, %lf): %.8lf %.3lf\n", fs, 0.5, stopMax, stopRipple);
+#endif
+}
+
+// recursive gcd. Using objdump, it appears the tail recursion is converted to a while loop.
+static int gcd(int n, int m)
+{
+    if (m == 0) {
+        return n;
+    }
+    return gcd(m, n % m);
+}
+
+static bool isClose(int32_t newSampleRate, int32_t prevSampleRate,
+        int32_t filterSampleRate, int32_t outSampleRate)
+{
+
+    // different upsampling ratios do not need a filter change.
+    if (filterSampleRate != 0
+            && filterSampleRate < outSampleRate
+            && newSampleRate < outSampleRate)
+        return true;
+
+    // check design criteria again if downsampling is detected.
+    int pdiff = absdiff(newSampleRate, prevSampleRate);
+    int adiff = absdiff(newSampleRate, filterSampleRate);
+
+    // allow up to 6% relative change increments.
+    // allow up to 12% absolute change increments (from filter design)
+    return pdiff < prevSampleRate>>4 && adiff < filterSampleRate>>3;
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::setSampleRate(int32_t inSampleRate)
+{
+    if (mInSampleRate == inSampleRate) {
+        return;
+    }
+    int32_t oldSampleRate = mInSampleRate;
+    uint32_t oldPhaseWrapLimit = mConstants.mL << mConstants.mShift;
+    bool useS32 = false;
+
+    mInSampleRate = inSampleRate;
+
+    // TODO: Add precalculated Equiripple filters
+
+    if (mFilterQuality != getQuality() ||
+            !isClose(inSampleRate, oldSampleRate, mFilterSampleRate, mSampleRate)) {
+        mFilterSampleRate = inSampleRate;
+        mFilterQuality = getQuality();
+
+        // Begin Kaiser Filter computation
+        //
+        // The quantization floor for S16 is about 96db - 10*log_10(#length) + 3dB.
+        // Keep the stop band attenuation no greater than 84-85dB for 32 length S16 filters
+        //
+        // For s32 we keep the stop band attenuation at the same as 16b resolution, about
+        // 96-98dB
+        //
+
+        double stopBandAtten;
+        double tbwCheat = 1.; // how much we "cheat" into aliasing
+        int halfLength;
+        if (mFilterQuality == DYN_HIGH_QUALITY) {
+            // 32b coefficients, 64 length
+            useS32 = true;
+            stopBandAtten = 98.;
+            if (inSampleRate >= mSampleRate * 4) {
+                halfLength = 48;
+            } else if (inSampleRate >= mSampleRate * 2) {
+                halfLength = 40;
+            } else {
+                halfLength = 32;
+            }
+        } else if (mFilterQuality == DYN_LOW_QUALITY) {
+            // 16b coefficients, 16-32 length
+            useS32 = false;
+            stopBandAtten = 80.;
+            if (inSampleRate >= mSampleRate * 4) {
+                halfLength = 24;
+            } else if (inSampleRate >= mSampleRate * 2) {
+                halfLength = 16;
+            } else {
+                halfLength = 8;
+            }
+            if (inSampleRate <= mSampleRate) {
+                tbwCheat = 1.05;
+            } else {
+                tbwCheat = 1.03;
+            }
+        } else { // DYN_MED_QUALITY
+            // 16b coefficients, 32-64 length
+            // note: > 64 length filters with 16b coefs can have quantization noise problems
+            useS32 = false;
+            stopBandAtten = 84.;
+            if (inSampleRate >= mSampleRate * 4) {
+                halfLength = 32;
+            } else if (inSampleRate >= mSampleRate * 2) {
+                halfLength = 24;
+            } else {
+                halfLength = 16;
+            }
+            if (inSampleRate <= mSampleRate) {
+                tbwCheat = 1.03;
+            } else {
+                tbwCheat = 1.01;
+            }
+        }
+
+        // determine the number of polyphases in the filterbank.
+        // for 16b, it is desirable to have 2^(16/2) = 256 phases.
+        // https://ccrma.stanford.edu/~jos/resample/Relation_Interpolation_Error_Quantization.html
+        //
+        // We are a bit more lax on this.
+
+        int phases = mSampleRate / gcd(mSampleRate, inSampleRate);
+
+        // TODO: Once dynamic sample rate change is an option, the code below
+        // should be modified to execute only when dynamic sample rate change is enabled.
+        //
+        // as above, #phases less than 63 is too few phases for accurate linear interpolation.
+        // we increase the phases to compensate, but more phases means more memory per
+        // filter and more time to compute the filter.
+        //
+        // if we know that the filter will be used for dynamic sample rate changes,
+        // that would allow us skip this part for fixed sample rate resamplers.
+        //
+        while (phases<63) {
+            phases *= 2; // this code only needed to support dynamic rate changes
+        }
+
+        if (phases>=256) {  // too many phases, always interpolate
+            phases = 127;
+        }
+
+        // create the filter
+        mConstants.set(phases, halfLength, inSampleRate, mSampleRate);
+        createKaiserFir(mConstants, stopBandAtten,
+                inSampleRate, mSampleRate, tbwCheat);
+    } // End Kaiser filter
+
+    // update phase and state based on the new filter.
+    const Constants& c(mConstants);
+    mInBuffer.resize(mChannelCount, c.mHalfNumCoefs);
+    const uint32_t phaseWrapLimit = c.mL << c.mShift;
+    // try to preserve as much of the phase fraction as possible for on-the-fly changes
+    mPhaseFraction = static_cast<unsigned long long>(mPhaseFraction)
+            * phaseWrapLimit / oldPhaseWrapLimit;
+    mPhaseFraction %= phaseWrapLimit; // should not do anything, but just in case.
+    mPhaseIncrement = static_cast<uint32_t>(static_cast<uint64_t>(phaseWrapLimit)
+            * inSampleRate / mSampleRate);
+
+    // determine which resampler to use
+    // check if locked phase (works only if mPhaseIncrement has no "fractional phase bits")
+    int locked = (mPhaseIncrement << (sizeof(mPhaseIncrement)*8 - c.mShift)) == 0;
+    if (locked) {
+        mPhaseFraction = mPhaseFraction >> c.mShift << c.mShift; // remove fractional phase
+    }
+
+    // stride is the minimum number of filter coefficients processed per loop iteration.
+    // We currently only allow a stride of 16 to match with SIMD processing.
+    // This means that the filter length must be a multiple of 16,
+    // or half the filter length (mHalfNumCoefs) must be a multiple of 8.
+    //
+    // Note: A stride of 2 is achieved with non-SIMD processing.
+    int stride = ((c.mHalfNumCoefs & 7) == 0) ? 16 : 2;
+    LOG_ALWAYS_FATAL_IF(stride < 16, "Resampler stride must be 16 or more");
+    LOG_ALWAYS_FATAL_IF(mChannelCount < 1 || mChannelCount > 8,
+            "Resampler channels(%d) must be between 1 to 8", mChannelCount);
+    // stride 16 (falls back to stride 2 for machines that do not support NEON)
+    if (locked) {
+        switch (mChannelCount) {
+        case 1:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<1, true, 16>;
+            break;
+        case 2:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<2, true, 16>;
+            break;
+        case 3:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<3, true, 16>;
+            break;
+        case 4:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<4, true, 16>;
+            break;
+        case 5:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<5, true, 16>;
+            break;
+        case 6:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<6, true, 16>;
+            break;
+        case 7:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<7, true, 16>;
+            break;
+        case 8:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<8, true, 16>;
+            break;
+        }
+    } else {
+        switch (mChannelCount) {
+        case 1:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<1, false, 16>;
+            break;
+        case 2:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<2, false, 16>;
+            break;
+        case 3:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<3, false, 16>;
+            break;
+        case 4:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<4, false, 16>;
+            break;
+        case 5:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<5, false, 16>;
+            break;
+        case 6:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<6, false, 16>;
+            break;
+        case 7:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<7, false, 16>;
+            break;
+        case 8:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<8, false, 16>;
+            break;
+        }
+    }
+#ifdef DEBUG_RESAMPLER
+    printf("channels:%d  %s  stride:%d  %s  coef:%d  shift:%d\n",
+            mChannelCount, locked ? "locked" : "interpolated",
+            stride, useS32 ? "S32" : "S16", 2*c.mHalfNumCoefs, c.mShift);
+#endif
+}
+
+template<typename TC, typename TI, typename TO>
+size_t AudioResamplerDyn<TC, TI, TO>::resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider)
+{
+    return (this->*mResampleFunc)(reinterpret_cast<TO*>(out), outFrameCount, provider);
+}
+
+template<typename TC, typename TI, typename TO>
+template<int CHANNELS, bool LOCKED, int STRIDE>
+size_t AudioResamplerDyn<TC, TI, TO>::resample(TO* out, size_t outFrameCount,
+        AudioBufferProvider* provider)
+{
+    // TODO Mono -> Mono is not supported. OUTPUT_CHANNELS reflects minimum of stereo out.
+    const int OUTPUT_CHANNELS = (CHANNELS < 2) ? 2 : CHANNELS;
+    const Constants& c(mConstants);
+    const TC* const coefs = mConstants.mFirCoefs;
+    TI* impulse = mInBuffer.getImpulse();
+    size_t inputIndex = 0;
+    uint32_t phaseFraction = mPhaseFraction;
+    const uint32_t phaseIncrement = mPhaseIncrement;
+    size_t outputIndex = 0;
+    size_t outputSampleCount = outFrameCount * OUTPUT_CHANNELS;
+    const uint32_t phaseWrapLimit = c.mL << c.mShift;
+    size_t inFrameCount = (phaseIncrement * (uint64_t)outFrameCount + phaseFraction)
+            / phaseWrapLimit;
+    // sanity check that inFrameCount is in signed 32 bit integer range.
+    ALOG_ASSERT(0 <= inFrameCount && inFrameCount < (1U << 31));
+
+    //ALOGV("inFrameCount:%d  outFrameCount:%d"
+    //        "  phaseIncrement:%u  phaseFraction:%u  phaseWrapLimit:%u",
+    //        inFrameCount, outFrameCount, phaseIncrement, phaseFraction, phaseWrapLimit);
+
+    // NOTE: be very careful when modifying the code here. register
+    // pressure is very high and a small change might cause the compiler
+    // to generate far less efficient code.
+    // Always sanity check the result with objdump or test-resample.
+
+    // the following logic is a bit convoluted to keep the main processing loop
+    // as tight as possible with register allocation.
+    while (outputIndex < outputSampleCount) {
+        //ALOGV("LOOP: inFrameCount:%d  outputIndex:%d  outFrameCount:%d"
+        //        "  phaseFraction:%u  phaseWrapLimit:%u",
+        //        inFrameCount, outputIndex, outFrameCount, phaseFraction, phaseWrapLimit);
+
+        // check inputIndex overflow
+        ALOG_ASSERT(inputIndex <= mBuffer.frameCount, "inputIndex%zu > frameCount%zu",
+                inputIndex, mBuffer.frameCount);
+        // Buffer is empty, fetch a new one if necessary (inFrameCount > 0).
+        // We may not fetch a new buffer if the existing data is sufficient.
+        while (mBuffer.frameCount == 0 && inFrameCount > 0) {
+            mBuffer.frameCount = inFrameCount;
+            provider->getNextBuffer(&mBuffer);
+            if (mBuffer.raw == NULL) {
+                // We are either at the end of playback or in an underrun situation.
+                // Reset buffer to prevent pop noise at the next buffer.
+                mInBuffer.reset();
+                goto resample_exit;
+            }
+            inFrameCount -= mBuffer.frameCount;
+            if (phaseFraction >= phaseWrapLimit) { // read in data
+                mInBuffer.template readAdvance<CHANNELS>(
+                        impulse, c.mHalfNumCoefs,
+                        reinterpret_cast<TI*>(mBuffer.raw), inputIndex);
+                inputIndex++;
+                phaseFraction -= phaseWrapLimit;
+                while (phaseFraction >= phaseWrapLimit) {
+                    if (inputIndex >= mBuffer.frameCount) {
+                        inputIndex = 0;
+                        provider->releaseBuffer(&mBuffer);
+                        break;
+                    }
+                    mInBuffer.template readAdvance<CHANNELS>(
+                            impulse, c.mHalfNumCoefs,
+                            reinterpret_cast<TI*>(mBuffer.raw), inputIndex);
+                    inputIndex++;
+                    phaseFraction -= phaseWrapLimit;
+                }
+            }
+        }
+        const TI* const in = reinterpret_cast<const TI*>(mBuffer.raw);
+        const size_t frameCount = mBuffer.frameCount;
+        const int coefShift = c.mShift;
+        const int halfNumCoefs = c.mHalfNumCoefs;
+        const TO* const volumeSimd = mVolumeSimd;
+
+        // main processing loop
+        while (CC_LIKELY(outputIndex < outputSampleCount)) {
+            // caution: fir() is inlined and may be large.
+            // output will be loaded with the appropriate values
+            //
+            // from the input samples in impulse[-halfNumCoefs+1]... impulse[halfNumCoefs]
+            // from the polyphase filter of (phaseFraction / phaseWrapLimit) in coefs.
+            //
+            //ALOGV("LOOP2: inFrameCount:%d  outputIndex:%d  outFrameCount:%d"
+            //        "  phaseFraction:%u  phaseWrapLimit:%u",
+            //        inFrameCount, outputIndex, outFrameCount, phaseFraction, phaseWrapLimit);
+            ALOG_ASSERT(phaseFraction < phaseWrapLimit);
+            fir<CHANNELS, LOCKED, STRIDE>(
+                    &out[outputIndex],
+                    phaseFraction, phaseWrapLimit,
+                    coefShift, halfNumCoefs, coefs,
+                    impulse, volumeSimd);
+
+            outputIndex += OUTPUT_CHANNELS;
+
+            phaseFraction += phaseIncrement;
+            while (phaseFraction >= phaseWrapLimit) {
+                if (inputIndex >= frameCount) {
+                    goto done;  // need a new buffer
+                }
+                mInBuffer.template readAdvance<CHANNELS>(impulse, halfNumCoefs, in, inputIndex);
+                inputIndex++;
+                phaseFraction -= phaseWrapLimit;
+            }
+        }
+done:
+        // We arrive here when we're finished or when the input buffer runs out.
+        // Regardless we need to release the input buffer if we've acquired it.
+        if (inputIndex > 0) {  // we've acquired a buffer (alternatively could check frameCount)
+            ALOG_ASSERT(inputIndex == frameCount, "inputIndex(%zu) != frameCount(%zu)",
+                    inputIndex, frameCount);  // must have been fully read.
+            inputIndex = 0;
+            provider->releaseBuffer(&mBuffer);
+            ALOG_ASSERT(mBuffer.frameCount == 0);
+        }
+    }
+
+resample_exit:
+    // inputIndex must be zero in all three cases:
+    // (1) the buffer never was been acquired; (2) the buffer was
+    // released at "done:"; or (3) getNextBuffer() failed.
+    ALOG_ASSERT(inputIndex == 0, "Releasing: inputindex:%zu frameCount:%zu  phaseFraction:%u",
+            inputIndex, mBuffer.frameCount, phaseFraction);
+    ALOG_ASSERT(mBuffer.frameCount == 0); // there must be no frames in the buffer
+    mInBuffer.setImpulse(impulse);
+    mPhaseFraction = phaseFraction;
+    return outputIndex / OUTPUT_CHANNELS;
+}
+
+/* instantiate templates used by AudioResampler::create */
+template class AudioResamplerDyn<float, float, float>;
+template class AudioResamplerDyn<int16_t, int16_t, int32_t>;
+template class AudioResamplerDyn<int32_t, int16_t, int32_t>;
+
+// ----------------------------------------------------------------------------
+} // namespace android
diff --git a/media/libaudioprocessing/AudioResamplerDyn.h b/media/libaudioprocessing/AudioResamplerDyn.h
new file mode 100644
index 0000000..1840fc7
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerDyn.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_DYN_H
+#define ANDROID_AUDIO_RESAMPLER_DYN_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <android/log.h>
+
+#include <media/AudioResampler.h>
+
+namespace android {
+
+/* AudioResamplerDyn
+ *
+ * This class template is used for floating point and integer resamplers.
+ *
+ * Type variables:
+ * TC = filter coefficient type (one of int16_t, int32_t, or float)
+ * TI = input data type (one of int16_t or float)
+ * TO = output data type (one of int32_t or float)
+ *
+ * For integer input data types TI, the coefficient type TC is either int16_t or int32_t.
+ * For float input data types TI, the coefficient type TC is float.
+ */
+
+template<typename TC, typename TI, typename TO>
+class AudioResamplerDyn: public AudioResampler {
+public:
+    AudioResamplerDyn(int inChannelCount,
+            int32_t sampleRate, src_quality quality);
+
+    virtual ~AudioResamplerDyn();
+
+    virtual void init();
+
+    virtual void setSampleRate(int32_t inSampleRate);
+
+    virtual void setVolume(float left, float right);
+
+    virtual size_t resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+
+private:
+
+    class Constants { // stores the filter constants.
+    public:
+        Constants() :
+            mL(0), mShift(0), mHalfNumCoefs(0), mFirCoefs(NULL)
+        {}
+        void set(int L, int halfNumCoefs,
+                int inSampleRate, int outSampleRate);
+
+                 int mL;            // interpolation phases in the filter.
+                 int mShift;        // right shift to get polyphase index
+        unsigned int mHalfNumCoefs; // filter half #coefs
+           const TC* mFirCoefs;     // polyphase filter bank
+    };
+
+    class InBuffer { // buffer management for input type TI
+    public:
+        InBuffer();
+        ~InBuffer();
+        void init();
+
+        void resize(int CHANNELS, int halfNumCoefs);
+
+        // used for direct management of the mImpulse pointer
+        inline TI* getImpulse() {
+            return mImpulse;
+        }
+
+        inline void setImpulse(TI *impulse) {
+            mImpulse = impulse;
+        }
+
+        template<int CHANNELS>
+        inline void readAgain(TI*& impulse, const int halfNumCoefs,
+                const TI* const in, const size_t inputIndex);
+
+        template<int CHANNELS>
+        inline void readAdvance(TI*& impulse, const int halfNumCoefs,
+                const TI* const in, const size_t inputIndex);
+
+        void reset();
+
+    private:
+        // tuning parameter guidelines: 2 <= multiple <= 8
+        static const int kStateSizeMultipleOfFilterLength = 4;
+
+        // in general, mRingFull = mState + mStateSize - halfNumCoefs*CHANNELS.
+           TI* mState;      // base pointer for the input buffer storage
+           TI* mImpulse;    // current location of the impulse response (centered)
+           TI* mRingFull;   // mState <= mImpulse < mRingFull
+        size_t mStateCount; // size of state in units of TI.
+    };
+
+    void createKaiserFir(Constants &c, double stopBandAtten,
+            int inSampleRate, int outSampleRate, double tbwCheat);
+
+    template<int CHANNELS, bool LOCKED, int STRIDE>
+    size_t resample(TO* out, size_t outFrameCount, AudioBufferProvider* provider);
+
+    // define a pointer to member function type for resample
+    typedef size_t (AudioResamplerDyn<TC, TI, TO>::*resample_ABP_t)(TO* out,
+            size_t outFrameCount, AudioBufferProvider* provider);
+
+    // data - the contiguous storage and layout of these is important.
+           InBuffer mInBuffer;
+          Constants mConstants;        // current set of coefficient parameters
+    TO __attribute__ ((aligned (8))) mVolumeSimd[2]; // must be aligned or NEON may crash
+     resample_ABP_t mResampleFunc;     // called function for resampling
+            int32_t mFilterSampleRate; // designed filter sample rate.
+        src_quality mFilterQuality;    // designed filter quality.
+              void* mCoefBuffer;       // if a filter is created, this is not null
+};
+
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_DYN_H*/
diff --git a/services/audioflinger/AudioResamplerFirGen.h b/media/libaudioprocessing/AudioResamplerFirGen.h
similarity index 100%
rename from services/audioflinger/AudioResamplerFirGen.h
rename to media/libaudioprocessing/AudioResamplerFirGen.h
diff --git a/media/libaudioprocessing/AudioResamplerFirOps.h b/media/libaudioprocessing/AudioResamplerFirOps.h
new file mode 100644
index 0000000..2e4cee3
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerFirOps.h
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_FIR_OPS_H
+#define ANDROID_AUDIO_RESAMPLER_FIR_OPS_H
+
+namespace android {
+
+#if defined(__arm__) && !defined(__thumb__)
+#define USE_INLINE_ASSEMBLY (true)
+#else
+#define USE_INLINE_ASSEMBLY (false)
+#endif
+
+#if defined(__aarch64__) || defined(__ARM_NEON__)
+#ifndef USE_NEON
+#define USE_NEON (true)
+#endif
+#else
+#define USE_NEON (false)
+#endif
+#if USE_NEON
+#include <arm_neon.h>
+#endif
+
+#if defined(__SSSE3__)  // Should be supported in x86 ABI for both 32 & 64-bit.
+#define USE_SSE (true)
+#include <tmmintrin.h>
+#else
+#define USE_SSE (false)
+#endif
+
+template<typename T, typename U>
+struct is_same
+{
+    static const bool value = false;
+};
+
+template<typename T>
+struct is_same<T, T>  // partial specialization
+{
+    static const bool value = true;
+};
+
+static inline
+int32_t mulRL(int left, int32_t in, uint32_t vRL)
+{
+#if USE_INLINE_ASSEMBLY
+    int32_t out;
+    if (left) {
+        asm( "smultb %[out], %[in], %[vRL] \n"
+             : [out]"=r"(out)
+             : [in]"%r"(in), [vRL]"r"(vRL)
+             : );
+    } else {
+        asm( "smultt %[out], %[in], %[vRL] \n"
+             : [out]"=r"(out)
+             : [in]"%r"(in), [vRL]"r"(vRL)
+             : );
+    }
+    return out;
+#else
+    int16_t v = left ? static_cast<int16_t>(vRL) : static_cast<int16_t>(vRL>>16);
+    return static_cast<int32_t>((static_cast<int64_t>(in) * v) >> 16);
+#endif
+}
+
+static inline
+int32_t mulAdd(int16_t in, int16_t v, int32_t a)
+{
+#if USE_INLINE_ASSEMBLY
+    int32_t out;
+    asm( "smlabb %[out], %[v], %[in], %[a] \n"
+         : [out]"=r"(out)
+         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
+         : );
+    return out;
+#else
+    return a + v * in;
+#endif
+}
+
+static inline
+int32_t mulAdd(int16_t in, int32_t v, int32_t a)
+{
+#if USE_INLINE_ASSEMBLY
+    int32_t out;
+    asm( "smlawb %[out], %[v], %[in], %[a] \n"
+         : [out]"=r"(out)
+         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
+         : );
+    return out;
+#else
+    return a + static_cast<int32_t>((static_cast<int64_t>(v) * in) >> 16);
+#endif
+}
+
+static inline
+int32_t mulAdd(int32_t in, int32_t v, int32_t a)
+{
+#if USE_INLINE_ASSEMBLY
+    int32_t out;
+    asm( "smmla %[out], %[v], %[in], %[a] \n"
+         : [out]"=r"(out)
+         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
+         : );
+    return out;
+#else
+    return a + static_cast<int32_t>((static_cast<int64_t>(v) * in) >> 32);
+#endif
+}
+
+static inline
+int32_t mulAddRL(int left, uint32_t inRL, int16_t v, int32_t a)
+{
+#if 0 // USE_INLINE_ASSEMBLY Seems to fail with Clang b/34110890
+    int32_t out;
+    if (left) {
+        asm( "smlabb %[out], %[v], %[inRL], %[a] \n"
+             : [out]"=r"(out)
+             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
+             : );
+    } else {
+        asm( "smlabt %[out], %[v], %[inRL], %[a] \n"
+             : [out]"=r"(out)
+             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
+             : );
+    }
+    return out;
+#else
+    int16_t s = left ? static_cast<int16_t>(inRL) : static_cast<int16_t>(inRL>>16);
+    return a + v * s;
+#endif
+}
+
+static inline
+int32_t mulAddRL(int left, uint32_t inRL, int32_t v, int32_t a)
+{
+#if 0 // USE_INLINE_ASSEMBLY Seems to fail with Clang b/34110890
+    int32_t out;
+    if (left) {
+        asm( "smlawb %[out], %[v], %[inRL], %[a] \n"
+             : [out]"=r"(out)
+             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
+             : );
+    } else {
+        asm( "smlawt %[out], %[v], %[inRL], %[a] \n"
+             : [out]"=r"(out)
+             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
+             : );
+    }
+    return out;
+#else
+    int16_t s = left ? static_cast<int16_t>(inRL) : static_cast<int16_t>(inRL>>16);
+    return a + static_cast<int32_t>((static_cast<int64_t>(v) * s) >> 16);
+#endif
+}
+
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_FIR_OPS_H*/
diff --git a/media/libaudioprocessing/AudioResamplerFirProcess.h b/media/libaudioprocessing/AudioResamplerFirProcess.h
new file mode 100644
index 0000000..a741677
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerFirProcess.h
@@ -0,0 +1,439 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_H
+#define ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_H
+
+namespace android {
+
+// depends on AudioResamplerFirOps.h
+
+/* variant for input type TI = int16_t input samples */
+template<typename TC>
+static inline
+void mac(int32_t& l, int32_t& r, TC coef, const int16_t* samples)
+{
+    uint32_t rl = *reinterpret_cast<const uint32_t*>(samples);
+    l = mulAddRL(1, rl, coef, l);
+    r = mulAddRL(0, rl, coef, r);
+}
+
+template<typename TC>
+static inline
+void mac(int32_t& l, TC coef, const int16_t* samples)
+{
+    l = mulAdd(samples[0], coef, l);
+}
+
+/* variant for input type TI = float input samples */
+template<typename TC>
+static inline
+void mac(float& l, float& r, TC coef,  const float* samples)
+{
+    l += *samples++ * coef;
+    r += *samples * coef;
+}
+
+template<typename TC>
+static inline
+void mac(float& l, TC coef,  const float* samples)
+{
+    l += *samples * coef;
+}
+
+/* variant for output type TO = int32_t output samples */
+static inline
+int32_t volumeAdjust(int32_t value, int32_t volume)
+{
+    return 2 * mulRL(0, value, volume);  // Note: only use top 16b
+}
+
+/* variant for output type TO = float output samples */
+static inline
+float volumeAdjust(float value, float volume)
+{
+    return value * volume;
+}
+
+/*
+ * Helper template functions for loop unrolling accumulator operations.
+ *
+ * Unrolling the loops achieves about 2x gain.
+ * Using a recursive template rather than an array of TO[] for the accumulator
+ * values is an additional 10-20% gain.
+ */
+
+template<int CHANNELS, typename TO>
+class Accumulator : public Accumulator<CHANNELS-1, TO> // recursive
+{
+public:
+    inline void clear() {
+        value = 0;
+        Accumulator<CHANNELS-1, TO>::clear();
+    }
+    template<typename TC, typename TI>
+    inline void acc(TC coef, const TI*& data) {
+        mac(value, coef, data++);
+        Accumulator<CHANNELS-1, TO>::acc(coef, data);
+    }
+    inline void volume(TO*& out, TO gain) {
+        *out++ = volumeAdjust(value, gain);
+        Accumulator<CHANNELS-1, TO>::volume(out, gain);
+    }
+
+    TO value; // one per recursive inherited base class
+};
+
+template<typename TO>
+class Accumulator<0, TO> {
+public:
+    inline void clear() {
+    }
+    template<typename TC, typename TI>
+    inline void acc(TC coef __unused, const TI*& data __unused) {
+    }
+    inline void volume(TO*& out __unused, TO gain __unused) {
+    }
+};
+
+template<typename TC, typename TINTERP>
+inline
+TC interpolate(TC coef_0, TC coef_1, TINTERP lerp)
+{
+    return lerp * (coef_1 - coef_0) + coef_0;
+}
+
+template<>
+inline
+int16_t interpolate<int16_t, uint32_t>(int16_t coef_0, int16_t coef_1, uint32_t lerp)
+{   // in some CPU architectures 16b x 16b multiplies are faster.
+    return (static_cast<int16_t>(lerp) * static_cast<int16_t>(coef_1 - coef_0) >> 15) + coef_0;
+}
+
+template<>
+inline
+int32_t interpolate<int32_t, uint32_t>(int32_t coef_0, int32_t coef_1, uint32_t lerp)
+{
+    return (lerp * static_cast<int64_t>(coef_1 - coef_0) >> 31) + coef_0;
+}
+
+/* class scope for passing in functions into templates */
+struct InterpCompute {
+    template<typename TC, typename TINTERP>
+    static inline
+    TC interpolatep(TC coef_0, TC coef_1, TINTERP lerp) {
+        return interpolate(coef_0, coef_1, lerp);
+    }
+
+    template<typename TC, typename TINTERP>
+    static inline
+    TC interpolaten(TC coef_0, TC coef_1, TINTERP lerp) {
+        return interpolate(coef_0, coef_1, lerp);
+    }
+};
+
+struct InterpNull {
+    template<typename TC, typename TINTERP>
+    static inline
+    TC interpolatep(TC coef_0, TC coef_1 __unused, TINTERP lerp __unused) {
+        return coef_0;
+    }
+
+    template<typename TC, typename TINTERP>
+    static inline
+    TC interpolaten(TC coef_0 __unused, TC coef_1, TINTERP lerp __unused) {
+        return coef_1;
+    }
+};
+
+/*
+ * Calculates a single output frame (two samples).
+ *
+ * The Process*() functions compute both the positive half FIR dot product and
+ * the negative half FIR dot product, accumulates, and then applies the volume.
+ *
+ * Use fir() to compute the proper coefficient pointers for a polyphase
+ * filter bank.
+ *
+ * ProcessBase() is the fundamental processing template function.
+ *
+ * ProcessL() calls ProcessBase() with TFUNC = InterpNull, for fixed/locked phase.
+ * Process() calls ProcessBase() with TFUNC = InterpCompute, for interpolated phase.
+ */
+
+template <int CHANNELS, int STRIDE, typename TFUNC, typename TC, typename TI, typename TO,
+        typename TINTERP>
+static inline
+void ProcessBase(TO* const out,
+        size_t count,
+        const TC* coefsP,
+        const TC* coefsN,
+        const TI* sP,
+        const TI* sN,
+        TINTERP lerpP,
+        const TO* const volumeLR)
+{
+    static_assert(CHANNELS > 0, "CHANNELS must be > 0");
+
+    if (CHANNELS > 2) {
+        // TO accum[CHANNELS];
+        Accumulator<CHANNELS, TO> accum;
+
+        // for (int j = 0; j < CHANNELS; ++j) accum[j] = 0;
+        accum.clear();
+        for (size_t i = 0; i < count; ++i) {
+            TC c = TFUNC::interpolatep(coefsP[0], coefsP[count], lerpP);
+
+            // for (int j = 0; j < CHANNELS; ++j) mac(accum[j], c, sP + j);
+            const TI *tmp_data = sP; // tmp_ptr seems to work better
+            accum.acc(c, tmp_data);
+
+            coefsP++;
+            sP -= CHANNELS;
+            c = TFUNC::interpolaten(coefsN[count], coefsN[0], lerpP);
+
+            // for (int j = 0; j < CHANNELS; ++j) mac(accum[j], c, sN + j);
+            tmp_data = sN; // tmp_ptr seems faster than directly using sN
+            accum.acc(c, tmp_data);
+
+            coefsN++;
+            sN += CHANNELS;
+        }
+        // for (int j = 0; j < CHANNELS; ++j) out[j] += volumeAdjust(accum[j], volumeLR[0]);
+        TO *tmp_out = out; // may remove if const out definition changes.
+        accum.volume(tmp_out, volumeLR[0]);
+    } else if (CHANNELS == 2) {
+        TO l = 0;
+        TO r = 0;
+        for (size_t i = 0; i < count; ++i) {
+            mac(l, r, TFUNC::interpolatep(coefsP[0], coefsP[count], lerpP), sP);
+            coefsP++;
+            sP -= CHANNELS;
+            mac(l, r, TFUNC::interpolaten(coefsN[count], coefsN[0], lerpP), sN);
+            coefsN++;
+            sN += CHANNELS;
+        }
+        out[0] += volumeAdjust(l, volumeLR[0]);
+        out[1] += volumeAdjust(r, volumeLR[1]);
+    } else { /* CHANNELS == 1 */
+        TO l = 0;
+        for (size_t i = 0; i < count; ++i) {
+            mac(l, TFUNC::interpolatep(coefsP[0], coefsP[count], lerpP), sP);
+            coefsP++;
+            sP -= CHANNELS;
+            mac(l, TFUNC::interpolaten(coefsN[count], coefsN[0], lerpP), sN);
+            coefsN++;
+            sN += CHANNELS;
+        }
+        out[0] += volumeAdjust(l, volumeLR[0]);
+        out[1] += volumeAdjust(l, volumeLR[1]);
+    }
+}
+
+/* Calculates a single output frame from a polyphase resampling filter.
+ * See Process() for parameter details.
+ */
+template <int CHANNELS, int STRIDE, typename TC, typename TI, typename TO>
+static inline
+void ProcessL(TO* const out,
+        int count,
+        const TC* coefsP,
+        const TC* coefsN,
+        const TI* sP,
+        const TI* sN,
+        const TO* const volumeLR)
+{
+    ProcessBase<CHANNELS, STRIDE, InterpNull>(out, count, coefsP, coefsN, sP, sN, 0, volumeLR);
+}
+
+/*
+ * Calculates a single output frame from a polyphase resampling filter,
+ * with filter phase interpolation.
+ *
+ * @param out should point to the output buffer with space for at least one output frame.
+ *
+ * @param count should be half the size of the total filter length (halfNumCoefs), as we
+ * use symmetry in filter coefficients to evaluate two dot products.
+ *
+ * @param coefsP is one phase of the polyphase filter bank of size halfNumCoefs, corresponding
+ * to the positive sP.
+ *
+ * @param coefsN is one phase of the polyphase filter bank of size halfNumCoefs, corresponding
+ * to the negative sN.
+ *
+ * @param coefsP1 is the next phase of coefsP (used for interpolation).
+ *
+ * @param coefsN1 is the next phase of coefsN (used for interpolation).
+ *
+ * @param sP is the positive half of the coefficients (as viewed by a convolution),
+ * starting at the original samples pointer and decrementing (by CHANNELS).
+ *
+ * @param sN is the negative half of the samples (as viewed by a convolution),
+ * starting at the original samples pointer + CHANNELS and incrementing (by CHANNELS).
+ *
+ * @param lerpP The fractional siting between the polyphase indices is given by the bits
+ * below coefShift. See fir() for details.
+ *
+ * @param volumeLR is a pointer to an array of two 32 bit volume values, one per stereo channel,
+ * expressed as a S32 integer or float.  A negative value inverts the channel 180 degrees.
+ * The pointer volumeLR should be aligned to a minimum of 8 bytes.
+ * A typical value for volume is 0x1000 to align to a unity gain output of 20.12.
+ */
+template <int CHANNELS, int STRIDE, typename TC, typename TI, typename TO, typename TINTERP>
+static inline
+void Process(TO* const out,
+        int count,
+        const TC* coefsP,
+        const TC* coefsN,
+        const TC* coefsP1 __unused,
+        const TC* coefsN1 __unused,
+        const TI* sP,
+        const TI* sN,
+        TINTERP lerpP,
+        const TO* const volumeLR)
+{
+    ProcessBase<CHANNELS, STRIDE, InterpCompute>(out, count, coefsP, coefsN, sP, sN, lerpP,
+            volumeLR);
+}
+
+/*
+ * Calculates a single output frame from input sample pointer.
+ *
+ * This sets up the params for the accelerated Process() and ProcessL()
+ * functions to do the appropriate dot products.
+ *
+ * @param out should point to the output buffer with space for at least one output frame.
+ *
+ * @param phase is the fractional distance between input frames for interpolation:
+ * phase >= 0  && phase < phaseWrapLimit.  It can be thought of as a rational fraction
+ * of phase/phaseWrapLimit.
+ *
+ * @param phaseWrapLimit is #polyphases<<coefShift, where #polyphases is the number of polyphases
+ * in the polyphase filter. Likewise, #polyphases can be obtained as (phaseWrapLimit>>coefShift).
+ *
+ * @param coefShift gives the bit alignment of the polyphase index in the phase parameter.
+ *
+ * @param halfNumCoefs is the half the number of coefficients per polyphase filter. Since the
+ * overall filterbank is odd-length symmetric, only halfNumCoefs need be stored.
+ *
+ * @param coefs is the polyphase filter bank, starting at from polyphase index 0, and ranging to
+ * and including the #polyphases.  Each polyphase of the filter has half-length halfNumCoefs
+ * (due to symmetry).  The total size of the filter bank in coefficients is
+ * (#polyphases+1)*halfNumCoefs.
+ *
+ * The filter bank coefs should be aligned to a minimum of 16 bytes (preferrably to cache line).
+ *
+ * The coefs should be attenuated (to compensate for passband ripple)
+ * if storing back into the native format.
+ *
+ * @param samples are unaligned input samples.  The position is in the "middle" of the
+ * sample array with respect to the FIR filter:
+ * the negative half of the filter is dot product from samples+1 to samples+halfNumCoefs;
+ * the positive half of the filter is dot product from samples to samples-halfNumCoefs+1.
+ *
+ * @param volumeLR is a pointer to an array of two 32 bit volume values, one per stereo channel,
+ * expressed as a S32 integer or float.  A negative value inverts the channel 180 degrees.
+ * The pointer volumeLR should be aligned to a minimum of 8 bytes.
+ * A typical value for volume is 0x1000 to align to a unity gain output of 20.12.
+ *
+ * In between calls to filterCoefficient, the phase is incremented by phaseIncrement, where
+ * phaseIncrement is calculated as inputSampling * phaseWrapLimit / outputSampling.
+ *
+ * The filter polyphase index is given by indexP = phase >> coefShift. Due to
+ * odd length symmetric filter, the polyphase index of the negative half depends on
+ * whether interpolation is used.
+ *
+ * The fractional siting between the polyphase indices is given by the bits below coefShift:
+ *
+ * lerpP = phase << 32 - coefShift >> 1;  // for 32 bit unsigned phase multiply
+ * lerpP = phase << 32 - coefShift >> 17; // for 16 bit unsigned phase multiply
+ *
+ * For integer types, this is expressed as:
+ *
+ * lerpP = phase << sizeof(phase)*8 - coefShift
+ *              >> (sizeof(phase)-sizeof(*coefs))*8 + 1;
+ *
+ * For floating point, lerpP is the fractional phase scaled to [0.0, 1.0):
+ *
+ * lerpP = (phase << 32 - coefShift) / (1 << 32); // floating point equivalent
+ */
+
+template<int CHANNELS, bool LOCKED, int STRIDE, typename TC, typename TI, typename TO>
+static inline
+void fir(TO* const out,
+        const uint32_t phase, const uint32_t phaseWrapLimit,
+        const int coefShift, const int halfNumCoefs, const TC* const coefs,
+        const TI* const samples, const TO* const volumeLR)
+{
+    // NOTE: be very careful when modifying the code here. register
+    // pressure is very high and a small change might cause the compiler
+    // to generate far less efficient code.
+    // Always sanity check the result with objdump or test-resample.
+
+    if (LOCKED) {
+        // locked polyphase (no interpolation)
+        // Compute the polyphase filter index on the positive and negative side.
+        uint32_t indexP = phase >> coefShift;
+        uint32_t indexN = (phaseWrapLimit - phase) >> coefShift;
+        const TC* coefsP = coefs + indexP*halfNumCoefs;
+        const TC* coefsN = coefs + indexN*halfNumCoefs;
+        const TI* sP = samples;
+        const TI* sN = samples + CHANNELS;
+
+        // dot product filter.
+        ProcessL<CHANNELS, STRIDE>(out,
+                halfNumCoefs, coefsP, coefsN, sP, sN, volumeLR);
+    } else {
+        // interpolated polyphase
+        // Compute the polyphase filter index on the positive and negative side.
+        uint32_t indexP = phase >> coefShift;
+        uint32_t indexN = (phaseWrapLimit - phase - 1) >> coefShift; // one's complement.
+        const TC* coefsP = coefs + indexP*halfNumCoefs;
+        const TC* coefsN = coefs + indexN*halfNumCoefs;
+        const TC* coefsP1 = coefsP + halfNumCoefs;
+        const TC* coefsN1 = coefsN + halfNumCoefs;
+        const TI* sP = samples;
+        const TI* sN = samples + CHANNELS;
+
+        // Interpolation fraction lerpP derived by shifting all the way up and down
+        // to clear the appropriate bits and align to the appropriate level
+        // for the integer multiply.  The constants should resolve in compile time.
+        //
+        // The interpolated filter coefficient is derived as follows for the pos/neg half:
+        //
+        // interpolated[P] = index[P]*lerpP + index[P+1]*(1-lerpP)
+        // interpolated[N] = index[N+1]*lerpP + index[N]*(1-lerpP)
+
+        // on-the-fly interpolated dot product filter
+        if (is_same<TC, float>::value || is_same<TC, double>::value) {
+            static const TC scale = 1. / (65536. * 65536.); // scale phase bits to [0.0, 1.0)
+            TC lerpP = TC(phase << (sizeof(phase)*8 - coefShift)) * scale;
+
+            Process<CHANNELS, STRIDE>(out,
+                    halfNumCoefs, coefsP, coefsN, coefsP1, coefsN1, sP, sN, lerpP, volumeLR);
+        } else {
+            uint32_t lerpP = phase << (sizeof(phase)*8 - coefShift)
+                    >> ((sizeof(phase)-sizeof(*coefs))*8 + 1);
+
+            Process<CHANNELS, STRIDE>(out,
+                    halfNumCoefs, coefsP, coefsN, coefsP1, coefsN1, sP, sN, lerpP, volumeLR);
+        }
+    }
+}
+
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_H*/
diff --git a/media/libaudioprocessing/AudioResamplerFirProcessNeon.h b/media/libaudioprocessing/AudioResamplerFirProcessNeon.h
new file mode 100644
index 0000000..c335050
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerFirProcessNeon.h
@@ -0,0 +1,1214 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H
+#define ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H
+
+namespace android {
+
+// depends on AudioResamplerFirOps.h, AudioResamplerFirProcess.h
+
+#if USE_NEON
+
+// use intrinsics if inline arm32 assembly is not possible
+#if !USE_INLINE_ASSEMBLY
+#define USE_INTRINSIC
+#endif
+
+// following intrinsics available only on ARM 64 bit ACLE
+#ifndef __aarch64__
+#undef vld1q_f32_x2
+#undef vld1q_s32_x2
+#endif
+
+#define TO_STRING2(x) #x
+#define TO_STRING(x) TO_STRING2(x)
+// uncomment to print GCC version, may be relevant for intrinsic optimizations
+/* #pragma message ("GCC version: " TO_STRING(__GNUC__) \
+        "." TO_STRING(__GNUC_MINOR__) \
+        "." TO_STRING(__GNUC_PATCHLEVEL__)) */
+
+//
+// NEON specializations are enabled for Process() and ProcessL() in AudioResamplerFirProcess.h
+//
+// Two variants are presented here:
+// ARM NEON inline assembly which appears up to 10-15% faster than intrinsics (gcc 4.9) for arm32.
+// ARM NEON intrinsics which can also be used by arm64 and x86/64 with NEON header.
+//
+
+// Macros to save a mono/stereo accumulator sample in q0 (and q4) as stereo out.
+// These are only used for inline assembly.
+#define ASSEMBLY_ACCUMULATE_MONO \
+        "vld1.s32       {d2}, [%[vLR]:64]        \n"/* (1) load volumes */\
+        "vld1.s32       {d3}, %[out]             \n"/* (2) unaligned load the output */\
+        "vpadd.s32      d0, d0, d1               \n"/* (1) add all 4 partial sums */\
+        "vpadd.s32      d0, d0, d0               \n"/* (1+4d) and replicate L/R */\
+        "vqrdmulh.s32   d0, d0, d2               \n"/* (2+3d) apply volume */\
+        "vqadd.s32      d3, d3, d0               \n"/* (1+4d) accumulate result (saturating) */\
+        "vst1.s32       {d3}, %[out]             \n"/* (2+2d) store result */
+
+#define ASSEMBLY_ACCUMULATE_STEREO \
+        "vld1.s32       {d2}, [%[vLR]:64]        \n"/* (1) load volumes*/\
+        "vld1.s32       {d3}, %[out]             \n"/* (2) unaligned load the output*/\
+        "vpadd.s32      d0, d0, d1               \n"/* (1) add all 4 partial sums from q0*/\
+        "vpadd.s32      d8, d8, d9               \n"/* (1) add all 4 partial sums from q4*/\
+        "vpadd.s32      d0, d0, d8               \n"/* (1+4d) combine into L/R*/\
+        "vqrdmulh.s32   d0, d0, d2               \n"/* (2+3d) apply volume*/\
+        "vqadd.s32      d3, d3, d0               \n"/* (1+4d) accumulate result (saturating)*/\
+        "vst1.s32       {d3}, %[out]             \n"/* (2+2d)store result*/
+
+template <int CHANNELS, int STRIDE, bool FIXED>
+static inline void ProcessNeonIntrinsic(int32_t* out,
+        int count,
+        const int16_t* coefsP,
+        const int16_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* volumeLR,
+        uint32_t lerpP,
+        const int16_t* coefsP1,
+        const int16_t* coefsN1)
+{
+    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
+    static_assert(CHANNELS == 1 || CHANNELS == 2, "CHANNELS must be 1 or 2");
+
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    coefsP = (const int16_t*)__builtin_assume_aligned(coefsP, 16);
+    coefsN = (const int16_t*)__builtin_assume_aligned(coefsN, 16);
+
+    int16x4_t interp;
+    if (!FIXED) {
+        interp = vdup_n_s16(lerpP);
+        //interp = (int16x4_t)vset_lane_s32 ((int32x2_t)lerpP, interp, 0);
+        coefsP1 = (const int16_t*)__builtin_assume_aligned(coefsP1, 16);
+        coefsN1 = (const int16_t*)__builtin_assume_aligned(coefsN1, 16);
+    }
+    int32x4_t accum, accum2;
+    // warning uninitialized if we use veorq_s32
+    // (alternative to below) accum = veorq_s32(accum, accum);
+    accum = vdupq_n_s32(0);
+    if (CHANNELS == 2) {
+        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
+        accum2 = vdupq_n_s32(0);
+    }
+    do {
+        int16x8_t posCoef = vld1q_s16(coefsP);
+        coefsP += 8;
+        int16x8_t negCoef = vld1q_s16(coefsN);
+        coefsN += 8;
+        if (!FIXED) { // interpolate
+            int16x8_t posCoef1 = vld1q_s16(coefsP1);
+            coefsP1 += 8;
+            int16x8_t negCoef1 = vld1q_s16(coefsN1);
+            coefsN1 += 8;
+
+            posCoef1 = vsubq_s16(posCoef1, posCoef);
+            negCoef = vsubq_s16(negCoef, negCoef1);
+
+            posCoef1 = vqrdmulhq_lane_s16(posCoef1, interp, 0);
+            negCoef = vqrdmulhq_lane_s16(negCoef, interp, 0);
+
+            posCoef = vaddq_s16(posCoef, posCoef1);
+            negCoef = vaddq_s16(negCoef, negCoef1);
+        }
+        switch (CHANNELS) {
+        case 1: {
+            int16x8_t posSamp = vld1q_s16(sP);
+            int16x8_t negSamp = vld1q_s16(sN);
+            sN += 8;
+            posSamp = vrev64q_s16(posSamp);
+
+            // dot product
+            accum = vmlal_s16(accum, vget_low_s16(posSamp), vget_high_s16(posCoef)); // reversed
+            accum = vmlal_s16(accum, vget_high_s16(posSamp), vget_low_s16(posCoef)); // reversed
+            accum = vmlal_s16(accum, vget_low_s16(negSamp), vget_low_s16(negCoef));
+            accum = vmlal_s16(accum, vget_high_s16(negSamp), vget_high_s16(negCoef));
+            sP -= 8;
+        } break;
+        case 2: {
+            int16x8x2_t posSamp = vld2q_s16(sP);
+            int16x8x2_t negSamp = vld2q_s16(sN);
+            sN += 16;
+            posSamp.val[0] = vrev64q_s16(posSamp.val[0]);
+            posSamp.val[1] = vrev64q_s16(posSamp.val[1]);
+
+            // dot product
+            accum = vmlal_s16(accum, vget_low_s16(posSamp.val[0]), vget_high_s16(posCoef)); // r
+            accum = vmlal_s16(accum, vget_high_s16(posSamp.val[0]), vget_low_s16(posCoef)); // r
+            accum2 = vmlal_s16(accum2, vget_low_s16(posSamp.val[1]), vget_high_s16(posCoef)); // r
+            accum2 = vmlal_s16(accum2, vget_high_s16(posSamp.val[1]), vget_low_s16(posCoef)); // r
+            accum = vmlal_s16(accum, vget_low_s16(negSamp.val[0]), vget_low_s16(negCoef));
+            accum = vmlal_s16(accum, vget_high_s16(negSamp.val[0]), vget_high_s16(negCoef));
+            accum2 = vmlal_s16(accum2, vget_low_s16(negSamp.val[1]), vget_low_s16(negCoef));
+            accum2 = vmlal_s16(accum2, vget_high_s16(negSamp.val[1]), vget_high_s16(negCoef));
+            sP -= 16;
+        } break;
+        }
+    } while (count -= 8);
+
+    // multiply by volume and save
+    volumeLR = (const int32_t*)__builtin_assume_aligned(volumeLR, 8);
+    int32x2_t vLR = vld1_s32(volumeLR);
+    int32x2_t outSamp = vld1_s32(out);
+    // combine and funnel down accumulator
+    int32x2_t outAccum = vpadd_s32(vget_low_s32(accum), vget_high_s32(accum));
+    if (CHANNELS == 1) {
+        // duplicate accum to both L and R
+        outAccum = vpadd_s32(outAccum, outAccum);
+    } else if (CHANNELS == 2) {
+        // accum2 contains R, fold in
+        int32x2_t outAccum2 = vpadd_s32(vget_low_s32(accum2), vget_high_s32(accum2));
+        outAccum = vpadd_s32(outAccum, outAccum2);
+    }
+    outAccum = vqrdmulh_s32(outAccum, vLR);
+    outSamp = vqadd_s32(outSamp, outAccum);
+    vst1_s32(out, outSamp);
+}
+
+template <int CHANNELS, int STRIDE, bool FIXED>
+static inline void ProcessNeonIntrinsic(int32_t* out,
+        int count,
+        const int32_t* coefsP,
+        const int32_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* volumeLR,
+        uint32_t lerpP,
+        const int32_t* coefsP1,
+        const int32_t* coefsN1)
+{
+    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
+    static_assert(CHANNELS == 1 || CHANNELS == 2, "CHANNELS must be 1 or 2");
+
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    coefsP = (const int32_t*)__builtin_assume_aligned(coefsP, 16);
+    coefsN = (const int32_t*)__builtin_assume_aligned(coefsN, 16);
+
+    int32x2_t interp;
+    if (!FIXED) {
+        interp = vdup_n_s32(lerpP);
+        coefsP1 = (const int32_t*)__builtin_assume_aligned(coefsP1, 16);
+        coefsN1 = (const int32_t*)__builtin_assume_aligned(coefsN1, 16);
+    }
+    int32x4_t accum, accum2;
+    // warning uninitialized if we use veorq_s32
+    // (alternative to below) accum = veorq_s32(accum, accum);
+    accum = vdupq_n_s32(0);
+    if (CHANNELS == 2) {
+        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
+        accum2 = vdupq_n_s32(0);
+    }
+    do {
+#ifdef vld1q_s32_x2
+        int32x4x2_t posCoef = vld1q_s32_x2(coefsP);
+        coefsP += 8;
+        int32x4x2_t negCoef = vld1q_s32_x2(coefsN);
+        coefsN += 8;
+#else
+        int32x4x2_t posCoef;
+        posCoef.val[0] = vld1q_s32(coefsP);
+        coefsP += 4;
+        posCoef.val[1] = vld1q_s32(coefsP);
+        coefsP += 4;
+        int32x4x2_t negCoef;
+        negCoef.val[0] = vld1q_s32(coefsN);
+        coefsN += 4;
+        negCoef.val[1] = vld1q_s32(coefsN);
+        coefsN += 4;
+#endif
+        if (!FIXED) { // interpolate
+#ifdef vld1q_s32_x2
+            int32x4x2_t posCoef1 = vld1q_s32_x2(coefsP1);
+            coefsP1 += 8;
+            int32x4x2_t negCoef1 = vld1q_s32_x2(coefsN1);
+            coefsN1 += 8;
+#else
+            int32x4x2_t posCoef1;
+            posCoef1.val[0] = vld1q_s32(coefsP1);
+            coefsP1 += 4;
+            posCoef1.val[1] = vld1q_s32(coefsP1);
+            coefsP1 += 4;
+            int32x4x2_t negCoef1;
+            negCoef1.val[0] = vld1q_s32(coefsN1);
+            coefsN1 += 4;
+            negCoef1.val[1] = vld1q_s32(coefsN1);
+            coefsN1 += 4;
+#endif
+
+            posCoef1.val[0] = vsubq_s32(posCoef1.val[0], posCoef.val[0]);
+            posCoef1.val[1] = vsubq_s32(posCoef1.val[1], posCoef.val[1]);
+            negCoef.val[0] = vsubq_s32(negCoef.val[0], negCoef1.val[0]);
+            negCoef.val[1] = vsubq_s32(negCoef.val[1], negCoef1.val[1]);
+
+            posCoef1.val[0] = vqrdmulhq_lane_s32(posCoef1.val[0], interp, 0);
+            posCoef1.val[1] = vqrdmulhq_lane_s32(posCoef1.val[1], interp, 0);
+            negCoef.val[0] = vqrdmulhq_lane_s32(negCoef.val[0], interp, 0);
+            negCoef.val[1] = vqrdmulhq_lane_s32(negCoef.val[1], interp, 0);
+
+            posCoef.val[0] = vaddq_s32(posCoef.val[0], posCoef1.val[0]);
+            posCoef.val[1] = vaddq_s32(posCoef.val[1], posCoef1.val[1]);
+            negCoef.val[0] = vaddq_s32(negCoef.val[0], negCoef1.val[0]);
+            negCoef.val[1] = vaddq_s32(negCoef.val[1], negCoef1.val[1]);
+        }
+        switch (CHANNELS) {
+        case 1: {
+            int16x8_t posSamp = vld1q_s16(sP);
+            int16x8_t negSamp = vld1q_s16(sN);
+            sN += 8;
+            posSamp = vrev64q_s16(posSamp);
+
+            int32x4_t posSamp0 = vshll_n_s16(vget_low_s16(posSamp), 15);
+            int32x4_t posSamp1 = vshll_n_s16(vget_high_s16(posSamp), 15);
+            int32x4_t negSamp0 = vshll_n_s16(vget_low_s16(negSamp), 15);
+            int32x4_t negSamp1 = vshll_n_s16(vget_high_s16(negSamp), 15);
+
+            // dot product
+            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
+            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
+            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
+            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
+
+            accum = vaddq_s32(accum, posSamp0);
+            negSamp0 = vaddq_s32(negSamp0, negSamp1);
+            accum = vaddq_s32(accum, posSamp1);
+            accum = vaddq_s32(accum, negSamp0);
+
+            sP -= 8;
+        } break;
+        case 2: {
+            int16x8x2_t posSamp = vld2q_s16(sP);
+            int16x8x2_t negSamp = vld2q_s16(sN);
+            sN += 16;
+            posSamp.val[0] = vrev64q_s16(posSamp.val[0]);
+            posSamp.val[1] = vrev64q_s16(posSamp.val[1]);
+
+            // left
+            int32x4_t posSamp0 = vshll_n_s16(vget_low_s16(posSamp.val[0]), 15);
+            int32x4_t posSamp1 = vshll_n_s16(vget_high_s16(posSamp.val[0]), 15);
+            int32x4_t negSamp0 = vshll_n_s16(vget_low_s16(negSamp.val[0]), 15);
+            int32x4_t negSamp1 = vshll_n_s16(vget_high_s16(negSamp.val[0]), 15);
+
+            // dot product
+            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
+            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
+            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
+            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
+
+            accum = vaddq_s32(accum, posSamp0);
+            negSamp0 = vaddq_s32(negSamp0, negSamp1);
+            accum = vaddq_s32(accum, posSamp1);
+            accum = vaddq_s32(accum, negSamp0);
+
+            // right
+            posSamp0 = vshll_n_s16(vget_low_s16(posSamp.val[1]), 15);
+            posSamp1 = vshll_n_s16(vget_high_s16(posSamp.val[1]), 15);
+            negSamp0 = vshll_n_s16(vget_low_s16(negSamp.val[1]), 15);
+            negSamp1 = vshll_n_s16(vget_high_s16(negSamp.val[1]), 15);
+
+            // dot product
+            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
+            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
+            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
+            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
+
+            accum2 = vaddq_s32(accum2, posSamp0);
+            negSamp0 = vaddq_s32(negSamp0, negSamp1);
+            accum2 = vaddq_s32(accum2, posSamp1);
+            accum2 = vaddq_s32(accum2, negSamp0);
+
+            sP -= 16;
+        } break;
+        }
+    } while (count -= 8);
+
+    // multiply by volume and save
+    volumeLR = (const int32_t*)__builtin_assume_aligned(volumeLR, 8);
+    int32x2_t vLR = vld1_s32(volumeLR);
+    int32x2_t outSamp = vld1_s32(out);
+    // combine and funnel down accumulator
+    int32x2_t outAccum = vpadd_s32(vget_low_s32(accum), vget_high_s32(accum));
+    if (CHANNELS == 1) {
+        // duplicate accum to both L and R
+        outAccum = vpadd_s32(outAccum, outAccum);
+    } else if (CHANNELS == 2) {
+        // accum2 contains R, fold in
+        int32x2_t outAccum2 = vpadd_s32(vget_low_s32(accum2), vget_high_s32(accum2));
+        outAccum = vpadd_s32(outAccum, outAccum2);
+    }
+    outAccum = vqrdmulh_s32(outAccum, vLR);
+    outSamp = vqadd_s32(outSamp, outAccum);
+    vst1_s32(out, outSamp);
+}
+
+template <int CHANNELS, int STRIDE, bool FIXED>
+static inline void ProcessNeonIntrinsic(float* out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* sP,
+        const float* sN,
+        const float* volumeLR,
+        float lerpP,
+        const float* coefsP1,
+        const float* coefsN1)
+{
+    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
+    static_assert(CHANNELS == 1 || CHANNELS == 2, "CHANNELS must be 1 or 2");
+
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    coefsP = (const float*)__builtin_assume_aligned(coefsP, 16);
+    coefsN = (const float*)__builtin_assume_aligned(coefsN, 16);
+
+    float32x2_t interp;
+    if (!FIXED) {
+        interp = vdup_n_f32(lerpP);
+        coefsP1 = (const float*)__builtin_assume_aligned(coefsP1, 16);
+        coefsN1 = (const float*)__builtin_assume_aligned(coefsN1, 16);
+    }
+    float32x4_t accum, accum2;
+    // warning uninitialized if we use veorq_s32
+    // (alternative to below) accum = veorq_s32(accum, accum);
+    accum = vdupq_n_f32(0);
+    if (CHANNELS == 2) {
+        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
+        accum2 = vdupq_n_f32(0);
+    }
+    do {
+#ifdef vld1q_f32_x2
+        float32x4x2_t posCoef = vld1q_f32_x2(coefsP);
+        coefsP += 8;
+        float32x4x2_t negCoef = vld1q_f32_x2(coefsN);
+        coefsN += 8;
+#else
+        float32x4x2_t posCoef;
+        posCoef.val[0] = vld1q_f32(coefsP);
+        coefsP += 4;
+        posCoef.val[1] = vld1q_f32(coefsP);
+        coefsP += 4;
+        float32x4x2_t negCoef;
+        negCoef.val[0] = vld1q_f32(coefsN);
+        coefsN += 4;
+        negCoef.val[1] = vld1q_f32(coefsN);
+        coefsN += 4;
+#endif
+        if (!FIXED) { // interpolate
+#ifdef vld1q_f32_x2
+            float32x4x2_t posCoef1 = vld1q_f32_x2(coefsP1);
+            coefsP1 += 8;
+            float32x4x2_t negCoef1 = vld1q_f32_x2(coefsN1);
+            coefsN1 += 8;
+#else
+            float32x4x2_t posCoef1;
+            posCoef1.val[0] = vld1q_f32(coefsP1);
+            coefsP1 += 4;
+            posCoef1.val[1] = vld1q_f32(coefsP1);
+            coefsP1 += 4;
+            float32x4x2_t negCoef1;
+            negCoef1.val[0] = vld1q_f32(coefsN1);
+            coefsN1 += 4;
+            negCoef1.val[1] = vld1q_f32(coefsN1);
+            coefsN1 += 4;
+#endif
+            posCoef1.val[0] = vsubq_f32(posCoef1.val[0], posCoef.val[0]);
+            posCoef1.val[1] = vsubq_f32(posCoef1.val[1], posCoef.val[1]);
+            negCoef.val[0] = vsubq_f32(negCoef.val[0], negCoef1.val[0]);
+            negCoef.val[1] = vsubq_f32(negCoef.val[1], negCoef1.val[1]);
+
+            posCoef.val[0] = vmlaq_lane_f32(posCoef.val[0], posCoef1.val[0], interp, 0);
+            posCoef.val[1] = vmlaq_lane_f32(posCoef.val[1], posCoef1.val[1], interp, 0);
+            negCoef.val[0] = vmlaq_lane_f32(negCoef1.val[0], negCoef.val[0], interp, 0); // rev
+            negCoef.val[1] = vmlaq_lane_f32(negCoef1.val[1], negCoef.val[1], interp, 0); // rev
+        }
+        switch (CHANNELS) {
+        case 1: {
+#ifdef vld1q_f32_x2
+            float32x4x2_t posSamp = vld1q_f32_x2(sP);
+            float32x4x2_t negSamp = vld1q_f32_x2(sN);
+            sN += 8;
+            sP -= 8;
+#else
+            float32x4x2_t posSamp;
+            posSamp.val[0] = vld1q_f32(sP);
+            sP += 4;
+            posSamp.val[1] = vld1q_f32(sP);
+            sP -= 12;
+            float32x4x2_t negSamp;
+            negSamp.val[0] = vld1q_f32(sN);
+            sN += 4;
+            negSamp.val[1] = vld1q_f32(sN);
+            sN += 4;
+#endif
+            // effectively we want a vrev128q_f32()
+            posSamp.val[0] = vrev64q_f32(posSamp.val[0]);
+            posSamp.val[1] = vrev64q_f32(posSamp.val[1]);
+            posSamp.val[0] = vcombine_f32(
+                    vget_high_f32(posSamp.val[0]), vget_low_f32(posSamp.val[0]));
+            posSamp.val[1] = vcombine_f32(
+                    vget_high_f32(posSamp.val[1]), vget_low_f32(posSamp.val[1]));
+
+            accum = vmlaq_f32(accum, posSamp.val[0], posCoef.val[1]);
+            accum = vmlaq_f32(accum, posSamp.val[1], posCoef.val[0]);
+            accum = vmlaq_f32(accum, negSamp.val[0], negCoef.val[0]);
+            accum = vmlaq_f32(accum, negSamp.val[1], negCoef.val[1]);
+        } break;
+        case 2: {
+            float32x4x2_t posSamp0 = vld2q_f32(sP);
+            sP += 8;
+            float32x4x2_t negSamp0 = vld2q_f32(sN);
+            sN += 8;
+            posSamp0.val[0] = vrev64q_f32(posSamp0.val[0]);
+            posSamp0.val[1] = vrev64q_f32(posSamp0.val[1]);
+            posSamp0.val[0] = vcombine_f32(
+                    vget_high_f32(posSamp0.val[0]), vget_low_f32(posSamp0.val[0]));
+            posSamp0.val[1] = vcombine_f32(
+                    vget_high_f32(posSamp0.val[1]), vget_low_f32(posSamp0.val[1]));
+
+            float32x4x2_t posSamp1 = vld2q_f32(sP);
+            sP -= 24;
+            float32x4x2_t negSamp1 = vld2q_f32(sN);
+            sN += 8;
+            posSamp1.val[0] = vrev64q_f32(posSamp1.val[0]);
+            posSamp1.val[1] = vrev64q_f32(posSamp1.val[1]);
+            posSamp1.val[0] = vcombine_f32(
+                    vget_high_f32(posSamp1.val[0]), vget_low_f32(posSamp1.val[0]));
+            posSamp1.val[1] = vcombine_f32(
+                    vget_high_f32(posSamp1.val[1]), vget_low_f32(posSamp1.val[1]));
+
+            // Note: speed is affected by accumulation order.
+            // Also, speed appears slower using vmul/vadd instead of vmla for
+            // stereo case, comparable for mono.
+
+            accum = vmlaq_f32(accum, negSamp0.val[0], negCoef.val[0]);
+            accum = vmlaq_f32(accum, negSamp1.val[0], negCoef.val[1]);
+            accum2 = vmlaq_f32(accum2, negSamp0.val[1], negCoef.val[0]);
+            accum2 = vmlaq_f32(accum2, negSamp1.val[1], negCoef.val[1]);
+
+            accum = vmlaq_f32(accum, posSamp0.val[0], posCoef.val[1]); // reversed
+            accum = vmlaq_f32(accum, posSamp1.val[0], posCoef.val[0]); // reversed
+            accum2 = vmlaq_f32(accum2, posSamp0.val[1], posCoef.val[1]); // reversed
+            accum2 = vmlaq_f32(accum2, posSamp1.val[1], posCoef.val[0]); // reversed
+        } break;
+        }
+    } while (count -= 8);
+
+    // multiply by volume and save
+    volumeLR = (const float*)__builtin_assume_aligned(volumeLR, 8);
+    float32x2_t vLR = vld1_f32(volumeLR);
+    float32x2_t outSamp = vld1_f32(out);
+    // combine and funnel down accumulator
+    float32x2_t outAccum = vpadd_f32(vget_low_f32(accum), vget_high_f32(accum));
+    if (CHANNELS == 1) {
+        // duplicate accum to both L and R
+        outAccum = vpadd_f32(outAccum, outAccum);
+    } else if (CHANNELS == 2) {
+        // accum2 contains R, fold in
+        float32x2_t outAccum2 = vpadd_f32(vget_low_f32(accum2), vget_high_f32(accum2));
+        outAccum = vpadd_f32(outAccum, outAccum2);
+    }
+    outSamp = vmla_f32(outSamp, outAccum, vLR);
+    vst1_f32(out, outSamp);
+}
+
+template <>
+inline void ProcessL<1, 16>(int32_t* const out,
+        int count,
+        const int16_t* coefsP,
+        const int16_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+#else
+    const int CHANNELS = 1; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "veor           q0, q0, q0               \n"// (0 - combines+) accumulator = 0
+
+        "1:                                      \n"
+
+        "vld1.16        {q2}, [%[sP]]            \n"// (2+0d) load 8 16-bits mono samples
+        "vld1.16        {q3}, [%[sN]]!           \n"// (2) load 8 16-bits mono samples
+        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q10}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs
+
+        "vrev64.16      q2, q2                   \n"// (1) reverse s3, s2, s1, s0, s7, s6, s5, s4
+
+        // reordering the vmal to do d6, d7 before d4, d5 is slower(?)
+        "vmlal.s16      q0, d4, d17              \n"// (1+0d) multiply (reversed)samples by coef
+        "vmlal.s16      q0, d5, d16              \n"// (1) multiply (reversed)samples by coef
+        "vmlal.s16      q0, d6, d20              \n"// (1) multiply neg samples
+        "vmlal.s16      q0, d7, d21              \n"// (1) multiply neg samples
+
+        // moving these ARM instructions before neon above seems to be slower
+        "subs           %[count], %[count], #8   \n"// (1) update loop counter
+        "sub            %[sP], %[sP], #16        \n"// (0) move pointer to next set of samples
+
+        // sP used after branch (warning)
+        "bne            1b                       \n"// loop
+
+         ASSEMBLY_ACCUMULATE_MONO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q8", "q10"
+    );
+#endif
+}
+
+template <>
+inline void ProcessL<2, 16>(int32_t* const out,
+        int count,
+        const int16_t* coefsP,
+        const int16_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+#else
+    const int CHANNELS = 2; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "veor           q0, q0, q0               \n"// (1) acc_L = 0
+        "veor           q4, q4, q4               \n"// (0 combines+) acc_R = 0
+
+        "1:                                      \n"
+
+        "vld2.16        {q2, q3}, [%[sP]]        \n"// (3+0d) load 8 16-bits stereo frames
+        "vld2.16        {q5, q6}, [%[sN]]!       \n"// (3) load 8 16-bits stereo frames
+        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q10}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs
+
+        "vrev64.16      q2, q2                   \n"// (1) reverse 8 samples of positive left
+        "vrev64.16      q3, q3                   \n"// (0 combines+) reverse positive right
+
+        "vmlal.s16      q0, d4, d17              \n"// (1) multiply (reversed) samples left
+        "vmlal.s16      q0, d5, d16              \n"// (1) multiply (reversed) samples left
+        "vmlal.s16      q4, d6, d17              \n"// (1) multiply (reversed) samples right
+        "vmlal.s16      q4, d7, d16              \n"// (1) multiply (reversed) samples right
+        "vmlal.s16      q0, d10, d20             \n"// (1) multiply samples left
+        "vmlal.s16      q0, d11, d21             \n"// (1) multiply samples left
+        "vmlal.s16      q4, d12, d20             \n"// (1) multiply samples right
+        "vmlal.s16      q4, d13, d21             \n"// (1) multiply samples right
+
+        // moving these ARM before neon seems to be slower
+        "subs           %[count], %[count], #8   \n"// (1) update loop counter
+        "sub            %[sP], %[sP], #32        \n"// (0) move pointer to next set of samples
+
+        // sP used after branch (warning)
+        "bne            1b                       \n"// loop
+
+        ASSEMBLY_ACCUMULATE_STEREO
+
+        : [out] "=Uv" (out[0]),
+          [count] "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [sP] "+r" (sP),
+          [sN] "+r" (sN)
+        : [vLR] "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q4", "q5", "q6",
+          "q8", "q10"
+     );
+#endif
+}
+
+template <>
+inline void Process<1, 16>(int32_t* const out,
+        int count,
+        const int16_t* coefsP,
+        const int16_t* coefsN,
+        const int16_t* coefsP1,
+        const int16_t* coefsN1,
+        const int16_t* sP,
+        const int16_t* sN,
+        uint32_t lerpP,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+#else
+
+    const int CHANNELS = 1; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "vmov.32        d2[0], %[lerpP]          \n"// load the positive phase S32 Q15
+        "veor           q0, q0, q0               \n"// (0 - combines+) accumulator = 0
+
+        "1:                                      \n"
+
+        "vld1.16        {q2}, [%[sP]]            \n"// (2+0d) load 8 16-bits mono samples
+        "vld1.16        {q3}, [%[sN]]!           \n"// (2) load 8 16-bits mono samples
+        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q9}, [%[coefsP1]:128]!  \n"// (1) load 8 16-bits coefs for interpolation
+        "vld1.16        {q10}, [%[coefsN1]:128]! \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q11}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs for interpolation
+
+        "vsub.s16       q9, q9, q8               \n"// (1) interpolate (step1) 1st set of coefs
+        "vsub.s16       q11, q11, q10            \n"// (1) interpolate (step1) 2nd set of coets
+
+        "vqrdmulh.s16   q9, q9, d2[0]            \n"// (2) interpolate (step2) 1st set of coefs
+        "vqrdmulh.s16   q11, q11, d2[0]          \n"// (2) interpolate (step2) 2nd set of coefs
+
+        "vrev64.16      q2, q2                   \n"// (1) reverse s3, s2, s1, s0, s7, s6, s5, s4
+
+        "vadd.s16       q8, q8, q9               \n"// (1+2d) interpolate (step3) 1st set
+        "vadd.s16       q10, q10, q11            \n"// (1+1d) interpolate (step3) 2nd set
+
+        // reordering the vmal to do d6, d7 before d4, d5 is slower(?)
+        "vmlal.s16      q0, d4, d17              \n"// (1+0d) multiply reversed samples by coef
+        "vmlal.s16      q0, d5, d16              \n"// (1) multiply reversed samples by coef
+        "vmlal.s16      q0, d6, d20              \n"// (1) multiply neg samples
+        "vmlal.s16      q0, d7, d21              \n"// (1) multiply neg samples
+
+        // moving these ARM instructions before neon above seems to be slower
+        "subs           %[count], %[count], #8   \n"// (1) update loop counter
+        "sub            %[sP], %[sP], #16        \n"// (0) move pointer to next set of samples
+
+        // sP used after branch (warning)
+        "bne            1b                       \n"// loop
+
+        ASSEMBLY_ACCUMULATE_MONO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [coefsP1] "+r" (coefsP1),
+          [coefsN1] "+r" (coefsN1),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [lerpP]   "r" (lerpP),
+          [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q8", "q9", "q10", "q11"
+    );
+#endif
+}
+
+template <>
+inline void Process<2, 16>(int32_t* const out,
+        int count,
+        const int16_t* coefsP,
+        const int16_t* coefsN,
+        const int16_t* coefsP1,
+        const int16_t* coefsN1,
+        const int16_t* sP,
+        const int16_t* sN,
+        uint32_t lerpP,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+#else
+    const int CHANNELS = 2; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "vmov.32        d2[0], %[lerpP]          \n"// load the positive phase
+        "veor           q0, q0, q0               \n"// (1) acc_L = 0
+        "veor           q4, q4, q4               \n"// (0 combines+) acc_R = 0
+
+        "1:                                      \n"
+
+        "vld2.16        {q2, q3}, [%[sP]]        \n"// (3+0d) load 8 16-bits stereo frames
+        "vld2.16        {q5, q6}, [%[sN]]!       \n"// (3) load 8 16-bits stereo frames
+        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q9}, [%[coefsP1]:128]!  \n"// (1) load 8 16-bits coefs for interpolation
+        "vld1.16        {q10}, [%[coefsN1]:128]! \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q11}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs for interpolation
+
+        "vsub.s16       q9, q9, q8               \n"// (1) interpolate (step1) 1st set of coefs
+        "vsub.s16       q11, q11, q10            \n"// (1) interpolate (step1) 2nd set of coets
+
+        "vqrdmulh.s16   q9, q9, d2[0]            \n"// (2) interpolate (step2) 1st set of coefs
+        "vqrdmulh.s16   q11, q11, d2[0]          \n"// (2) interpolate (step2) 2nd set of coefs
+
+        "vrev64.16      q2, q2                   \n"// (1) reverse 8 samples of positive left
+        "vrev64.16      q3, q3                   \n"// (1) reverse 8 samples of positive right
+
+        "vadd.s16       q8, q8, q9               \n"// (1+1d) interpolate (step3) 1st set
+        "vadd.s16       q10, q10, q11            \n"// (1+1d) interpolate (step3) 2nd set
+
+        "vmlal.s16      q0, d4, d17              \n"// (1) multiply reversed samples left
+        "vmlal.s16      q0, d5, d16              \n"// (1) multiply reversed samples left
+        "vmlal.s16      q4, d6, d17              \n"// (1) multiply reversed samples right
+        "vmlal.s16      q4, d7, d16              \n"// (1) multiply reversed samples right
+        "vmlal.s16      q0, d10, d20             \n"// (1) multiply samples left
+        "vmlal.s16      q0, d11, d21             \n"// (1) multiply samples left
+        "vmlal.s16      q4, d12, d20             \n"// (1) multiply samples right
+        "vmlal.s16      q4, d13, d21             \n"// (1) multiply samples right
+
+        // moving these ARM before neon seems to be slower
+        "subs           %[count], %[count], #8   \n"// (1) update loop counter
+        "sub            %[sP], %[sP], #32        \n"// (0) move pointer to next set of samples
+
+        // sP used after branch (warning)
+        "bne            1b                       \n"// loop
+
+        ASSEMBLY_ACCUMULATE_STEREO
+
+        : [out] "=Uv" (out[0]),
+          [count] "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [coefsP1] "+r" (coefsP1),
+          [coefsN1] "+r" (coefsN1),
+          [sP] "+r" (sP),
+          [sN] "+r" (sN)
+        : [lerpP]   "r" (lerpP),
+          [vLR] "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q4", "q5", "q6",
+          "q8", "q9", "q10", "q11"
+    );
+#endif
+}
+
+template <>
+inline void ProcessL<1, 16>(int32_t* const out,
+        int count,
+        const int32_t* coefsP,
+        const int32_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+#else
+    const int CHANNELS = 1; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "veor           q0, q0, q0                    \n"// result, initialize to 0
+
+        "1:                                           \n"
+
+        "vld1.16        {q2}, [%[sP]]                 \n"// load 8 16-bits mono samples
+        "vld1.16        {q3}, [%[sN]]!                \n"// load 8 16-bits mono samples
+        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
+        "vld1.32        {q10, q11}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
+
+        "vrev64.16      q2, q2                        \n"// reverse 8 samples of the positive side
+
+        "vshll.s16      q12, d4, #15                  \n"// extend samples to 31 bits
+        "vshll.s16      q13, d5, #15                  \n"// extend samples to 31 bits
+
+        "vshll.s16      q14, d6, #15                  \n"// extend samples to 31 bits
+        "vshll.s16      q15, d7, #15                  \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples
+
+        "vadd.s32       q0, q0, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q0, q0, q15                   \n"// accumulate result
+        "vadd.s32       q0, q0, q13                   \n"// accumulate result
+
+        "sub            %[sP], %[sP], #16             \n"// move pointer to next set of samples
+        "subs           %[count], %[count], #8        \n"// update loop counter
+
+        "bne            1b                            \n"// loop
+
+        ASSEMBLY_ACCUMULATE_MONO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q8", "q9", "q10", "q11",
+          "q12", "q13", "q14", "q15"
+    );
+#endif
+}
+
+template <>
+inline void ProcessL<2, 16>(int32_t* const out,
+        int count,
+        const int32_t* coefsP,
+        const int32_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+#else
+    const int CHANNELS = 2; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "veor           q0, q0, q0                    \n"// result, initialize to 0
+        "veor           q4, q4, q4                    \n"// result, initialize to 0
+
+        "1:                                           \n"
+
+        "vld2.16        {q2, q3}, [%[sP]]             \n"// load 8 16-bits stereo frames
+        "vld2.16        {q5, q6}, [%[sN]]!            \n"// load 8 16-bits stereo frames
+        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
+        "vld1.32        {q10, q11}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
+
+        "vrev64.16      q2, q2                        \n"// reverse 8 samples of positive left
+        "vrev64.16      q3, q3                        \n"// reverse 8 samples of positive right
+
+        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
+
+        "vshll.s16      q14,  d10, #15                \n"// extend samples to 31 bits
+        "vshll.s16      q15,  d11, #15                \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by coef
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by coef
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by coef
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by coef
+
+        "vadd.s32       q0, q0, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q0, q0, q15                   \n"// accumulate result
+        "vadd.s32       q0, q0, q13                   \n"// accumulate result
+
+        "vshll.s16      q12,  d6, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q13,  d7, #15                 \n"// extend samples to 31 bits
+
+        "vshll.s16      q14,  d12, #15                \n"// extend samples to 31 bits
+        "vshll.s16      q15,  d13, #15                \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by coef
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by coef
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by coef
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by coef
+
+        "vadd.s32       q4, q4, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q4, q4, q15                   \n"// accumulate result
+        "vadd.s32       q4, q4, q13                   \n"// accumulate result
+
+        "subs           %[count], %[count], #8        \n"// update loop counter
+        "sub            %[sP], %[sP], #32             \n"// move pointer to next set of samples
+
+        "bne            1b                            \n"// loop
+
+        ASSEMBLY_ACCUMULATE_STEREO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q4", "q5", "q6",
+          "q8", "q9", "q10", "q11",
+          "q12", "q13", "q14", "q15"
+    );
+#endif
+}
+
+template <>
+inline void Process<1, 16>(int32_t* const out,
+        int count,
+        const int32_t* coefsP,
+        const int32_t* coefsN,
+        const int32_t* coefsP1,
+        const int32_t* coefsN1,
+        const int16_t* sP,
+        const int16_t* sN,
+        uint32_t lerpP,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+#else
+    const int CHANNELS = 1; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "vmov.32        d2[0], %[lerpP]               \n"// load the positive phase
+        "veor           q0, q0, q0                    \n"// result, initialize to 0
+
+        "1:                                           \n"
+
+        "vld1.16        {q2}, [%[sP]]                 \n"// load 8 16-bits mono samples
+        "vld1.16        {q3}, [%[sN]]!                \n"// load 8 16-bits mono samples
+        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
+        "vld1.32        {q12, q13}, [%[coefsP1]:128]! \n"// load 8 32-bits coefs
+        "vld1.32        {q10, q11}, [%[coefsN1]:128]! \n"// load 8 32-bits coefs
+        "vld1.32        {q14, q15}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
+
+        "vsub.s32       q12, q12, q8                  \n"// interpolate (step1)
+        "vsub.s32       q13, q13, q9                  \n"// interpolate (step1)
+        "vsub.s32       q14, q14, q10                 \n"// interpolate (step1)
+        "vsub.s32       q15, q15, q11                 \n"// interpolate (step1)
+
+        "vqrdmulh.s32   q12, q12, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q13, q13, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q14, q14, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q15, q15, d2[0]               \n"// interpolate (step2)
+
+        "vadd.s32       q8, q8, q12                   \n"// interpolate (step3)
+        "vadd.s32       q9, q9, q13                   \n"// interpolate (step3)
+        "vadd.s32       q10, q10, q14                 \n"// interpolate (step3)
+        "vadd.s32       q11, q11, q15                 \n"// interpolate (step3)
+
+        "vrev64.16      q2, q2                        \n"// reverse 8 samples of the positive side
+
+        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
+
+        "vshll.s16      q14,  d6, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q15,  d7, #15                 \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
+
+        "vadd.s32       q0, q0, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q0, q0, q15                   \n"// accumulate result
+        "vadd.s32       q0, q0, q13                   \n"// accumulate result
+
+        "sub            %[sP], %[sP], #16             \n"// move pointer to next set of samples
+        "subs           %[count], %[count], #8        \n"// update loop counter
+
+        "bne            1b                            \n"// loop
+
+        ASSEMBLY_ACCUMULATE_MONO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [coefsP1] "+r" (coefsP1),
+          [coefsN1] "+r" (coefsN1),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [lerpP]   "r" (lerpP),
+          [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q8", "q9", "q10", "q11",
+          "q12", "q13", "q14", "q15"
+    );
+#endif
+}
+
+template <>
+inline void Process<2, 16>(int32_t* const out,
+        int count,
+        const int32_t* coefsP,
+        const int32_t* coefsN,
+        const int32_t* coefsP1,
+        const int32_t* coefsN1,
+        const int16_t* sP,
+        const int16_t* sN,
+        uint32_t lerpP,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+#else
+    const int CHANNELS = 2; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "vmov.32        d2[0], %[lerpP]               \n"// load the positive phase
+        "veor           q0, q0, q0                    \n"// result, initialize to 0
+        "veor           q4, q4, q4                    \n"// result, initialize to 0
+
+        "1:                                           \n"
+
+        "vld2.16        {q2, q3}, [%[sP]]             \n"// load 8 16-bits stereo frames
+        "vld2.16        {q5, q6}, [%[sN]]!            \n"// load 8 16-bits stereo frames
+        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
+        "vld1.32        {q12, q13}, [%[coefsP1]:128]! \n"// load 8 32-bits coefs
+        "vld1.32        {q10, q11}, [%[coefsN1]:128]! \n"// load 8 32-bits coefs
+        "vld1.32        {q14, q15}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
+
+        "vsub.s32       q12, q12, q8                  \n"// interpolate (step1)
+        "vsub.s32       q13, q13, q9                  \n"// interpolate (step1)
+        "vsub.s32       q14, q14, q10                 \n"// interpolate (step1)
+        "vsub.s32       q15, q15, q11                 \n"// interpolate (step1)
+
+        "vqrdmulh.s32   q12, q12, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q13, q13, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q14, q14, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q15, q15, d2[0]               \n"// interpolate (step2)
+
+        "vadd.s32       q8, q8, q12                   \n"// interpolate (step3)
+        "vadd.s32       q9, q9, q13                   \n"// interpolate (step3)
+        "vadd.s32       q10, q10, q14                 \n"// interpolate (step3)
+        "vadd.s32       q11, q11, q15                 \n"// interpolate (step3)
+
+        "vrev64.16      q2, q2                        \n"// reverse 8 samples of positive left
+        "vrev64.16      q3, q3                        \n"// reverse 8 samples of positive right
+
+        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
+
+        "vshll.s16      q14,  d10, #15                \n"// extend samples to 31 bits
+        "vshll.s16      q15,  d11, #15                \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
+
+        "vadd.s32       q0, q0, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q0, q0, q15                   \n"// accumulate result
+        "vadd.s32       q0, q0, q13                   \n"// accumulate result
+
+        "vshll.s16      q12,  d6, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q13,  d7, #15                 \n"// extend samples to 31 bits
+
+        "vshll.s16      q14,  d12, #15                \n"// extend samples to 31 bits
+        "vshll.s16      q15,  d13, #15                \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
+
+        "vadd.s32       q4, q4, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q4, q4, q15                   \n"// accumulate result
+        "vadd.s32       q4, q4, q13                   \n"// accumulate result
+
+        "subs           %[count], %[count], #8        \n"// update loop counter
+        "sub            %[sP], %[sP], #32             \n"// move pointer to next set of samples
+
+        "bne            1b                            \n"// loop
+
+        ASSEMBLY_ACCUMULATE_STEREO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [coefsP1] "+r" (coefsP1),
+          [coefsN1] "+r" (coefsN1),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [lerpP]   "r" (lerpP),
+          [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q4", "q5", "q6",
+          "q8", "q9", "q10", "q11",
+          "q12", "q13", "q14", "q15"
+    );
+#endif
+}
+
+template<>
+inline void ProcessL<1, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* sP,
+        const float* sN,
+        const float* const volumeLR)
+{
+    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+}
+
+template<>
+inline void ProcessL<2, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* sP,
+        const float* sN,
+        const float* const volumeLR)
+{
+    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+}
+
+template<>
+inline void Process<1, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* coefsP1,
+        const float* coefsN1,
+        const float* sP,
+        const float* sN,
+        float lerpP,
+        const float* const volumeLR)
+{
+    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+}
+
+template<>
+inline void Process<2, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* coefsP1,
+        const float* coefsN1,
+        const float* sP,
+        const float* sN,
+        float lerpP,
+        const float* const volumeLR)
+{
+    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+}
+
+#endif //USE_NEON
+
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H*/
diff --git a/media/libaudioprocessing/AudioResamplerFirProcessSSE.h b/media/libaudioprocessing/AudioResamplerFirProcessSSE.h
new file mode 100644
index 0000000..30233b5
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerFirProcessSSE.h
@@ -0,0 +1,215 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_SSE_H
+#define ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_SSE_H
+
+namespace android {
+
+// depends on AudioResamplerFirOps.h, AudioResamplerFirProcess.h
+
+#if USE_SSE
+
+#define TO_STRING2(x) #x
+#define TO_STRING(x) TO_STRING2(x)
+// uncomment to print GCC version, may be relevant for intrinsic optimizations
+/* #pragma message ("GCC version: " TO_STRING(__GNUC__) \
+        "." TO_STRING(__GNUC_MINOR__) \
+        "." TO_STRING(__GNUC_PATCHLEVEL__)) */
+
+//
+// SSEx specializations are enabled for Process() and ProcessL() in AudioResamplerFirProcess.h
+//
+
+template <int CHANNELS, int STRIDE, bool FIXED>
+static inline void ProcessSSEIntrinsic(float* out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* sP,
+        const float* sN,
+        const float* volumeLR,
+        float lerpP,
+        const float* coefsP1,
+        const float* coefsN1)
+{
+    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
+    static_assert(CHANNELS == 1 || CHANNELS == 2, "CHANNELS must be 1 or 2");
+
+    sP -= CHANNELS*(4-1);   // adjust sP for a loop iteration of four
+
+    __m128 interp;
+    if (!FIXED) {
+        interp = _mm_set1_ps(lerpP);
+    }
+
+    __m128 accL, accR;
+    accL = _mm_setzero_ps();
+    if (CHANNELS == 2) {
+        accR = _mm_setzero_ps();
+    }
+
+    do {
+        __m128 posCoef = _mm_load_ps(coefsP);
+        __m128 negCoef = _mm_load_ps(coefsN);
+        coefsP += 4;
+        coefsN += 4;
+
+        if (!FIXED) { // interpolate
+            __m128 posCoef1 = _mm_load_ps(coefsP1);
+            __m128 negCoef1 = _mm_load_ps(coefsN1);
+            coefsP1 += 4;
+            coefsN1 += 4;
+
+            // Calculate the final coefficient for interpolation
+            // posCoef = interp * (posCoef1 - posCoef) + posCoef
+            // negCoef = interp * (negCoef - negCoef1) + negCoef1
+            posCoef1 = _mm_sub_ps(posCoef1, posCoef);
+            negCoef = _mm_sub_ps(negCoef, negCoef1);
+
+            posCoef1 = _mm_mul_ps(posCoef1, interp);
+            negCoef = _mm_mul_ps(negCoef, interp);
+
+            posCoef = _mm_add_ps(posCoef1, posCoef);
+            negCoef = _mm_add_ps(negCoef, negCoef1);
+        }
+        switch (CHANNELS) {
+        case 1: {
+            __m128 posSamp = _mm_loadu_ps(sP);
+            __m128 negSamp = _mm_loadu_ps(sN);
+            sP -= 4;
+            sN += 4;
+
+            posSamp = _mm_shuffle_ps(posSamp, posSamp, 0x1B);
+            posSamp = _mm_mul_ps(posSamp, posCoef);
+            negSamp = _mm_mul_ps(negSamp, negCoef);
+
+            accL = _mm_add_ps(accL, posSamp);
+            accL = _mm_add_ps(accL, negSamp);
+        } break;
+        case 2: {
+            __m128 posSamp0 = _mm_loadu_ps(sP);
+            __m128 posSamp1 = _mm_loadu_ps(sP+4);
+            __m128 negSamp0 = _mm_loadu_ps(sN);
+            __m128 negSamp1 = _mm_loadu_ps(sN+4);
+            sP -= 8;
+            sN += 8;
+
+            // deinterleave everything and reverse the positives
+            __m128 posSampL = _mm_shuffle_ps(posSamp1, posSamp0, 0x22);
+            __m128 posSampR = _mm_shuffle_ps(posSamp1, posSamp0, 0x77);
+            __m128 negSampL = _mm_shuffle_ps(negSamp0, negSamp1, 0x88);
+            __m128 negSampR = _mm_shuffle_ps(negSamp0, negSamp1, 0xDD);
+
+            posSampL = _mm_mul_ps(posSampL, posCoef);
+            posSampR = _mm_mul_ps(posSampR, posCoef);
+            negSampL = _mm_mul_ps(negSampL, negCoef);
+            negSampR = _mm_mul_ps(negSampR, negCoef);
+
+            accL = _mm_add_ps(accL, posSampL);
+            accR = _mm_add_ps(accR, posSampR);
+            accL = _mm_add_ps(accL, negSampL);
+            accR = _mm_add_ps(accR, negSampR);
+        } break;
+        }
+    } while (count -= 4);
+
+    // multiply by volume and save
+    __m128 vLR = _mm_setzero_ps();
+    __m128 outSamp;
+    vLR = _mm_loadl_pi(vLR, reinterpret_cast<const __m64*>(volumeLR));
+    outSamp = _mm_loadl_pi(vLR, reinterpret_cast<__m64*>(out));
+
+    // combine and funnel down accumulator
+    __m128 outAccum = _mm_setzero_ps();
+    if (CHANNELS == 1) {
+        // duplicate accL to both L and R
+        outAccum = _mm_add_ps(accL, _mm_movehl_ps(accL, accL));
+        outAccum = _mm_add_ps(outAccum, _mm_shuffle_ps(outAccum, outAccum, 0x11));
+    } else if (CHANNELS == 2) {
+        // accR contains R, fold in
+        outAccum = _mm_hadd_ps(accL, accR);
+        outAccum = _mm_hadd_ps(outAccum, outAccum);
+    }
+
+    outAccum = _mm_mul_ps(outAccum, vLR);
+    outSamp = _mm_add_ps(outSamp, outAccum);
+    _mm_storel_pi(reinterpret_cast<__m64*>(out), outSamp);
+}
+
+template<>
+inline void ProcessL<1, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* sP,
+        const float* sN,
+        const float* const volumeLR)
+{
+    ProcessSSEIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+}
+
+template<>
+inline void ProcessL<2, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* sP,
+        const float* sN,
+        const float* const volumeLR)
+{
+    ProcessSSEIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+}
+
+template<>
+inline void Process<1, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* coefsP1,
+        const float* coefsN1,
+        const float* sP,
+        const float* sN,
+        float lerpP,
+        const float* const volumeLR)
+{
+    ProcessSSEIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+}
+
+template<>
+inline void Process<2, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* coefsP1,
+        const float* coefsN1,
+        const float* sP,
+        const float* sN,
+        float lerpP,
+        const float* const volumeLR)
+{
+    ProcessSSEIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+}
+
+#endif //USE_SSE
+
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_SSE_H*/
diff --git a/services/audioflinger/AudioResamplerSinc.cpp b/media/libaudioprocessing/AudioResamplerSinc.cpp
similarity index 100%
rename from services/audioflinger/AudioResamplerSinc.cpp
rename to media/libaudioprocessing/AudioResamplerSinc.cpp
diff --git a/media/libaudioprocessing/AudioResamplerSinc.h b/media/libaudioprocessing/AudioResamplerSinc.h
new file mode 100644
index 0000000..f6dcf91
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerSinc.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_SINC_H
+#define ANDROID_AUDIO_RESAMPLER_SINC_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <android/log.h>
+
+#include <media/AudioResampler.h>
+
+namespace android {
+
+
+typedef const int32_t * (*readCoefficientsFn)(bool upDownSample);
+typedef int32_t (*readResampleFirNumCoeffFn)();
+typedef int32_t (*readResampleFirLerpIntBitsFn)();
+
+// ----------------------------------------------------------------------------
+
+class AudioResamplerSinc : public AudioResampler {
+public:
+    AudioResamplerSinc(int inChannelCount, int32_t sampleRate,
+            src_quality quality = HIGH_QUALITY);
+
+    virtual ~AudioResamplerSinc();
+
+    virtual size_t resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+private:
+    void init();
+
+    virtual void setVolume(float left, float right);
+
+    template<int CHANNELS>
+    size_t resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+
+    template<int CHANNELS>
+    inline void filterCoefficient(
+            int32_t* out, uint32_t phase, const int16_t *samples, uint32_t vRL);
+
+    template<int CHANNELS>
+    inline void interpolate(
+            int32_t& l, int32_t& r,
+            const int32_t* coefs, size_t offset,
+            int32_t lerp, const int16_t* samples);
+
+    template<int CHANNELS>
+    inline void read(int16_t*& impulse, uint32_t& phaseFraction,
+            const int16_t* in, size_t inputIndex);
+
+    int16_t *mState;
+    int16_t *mImpulse;
+    int16_t *mRingFull;
+    int32_t mVolumeSIMD[2];
+
+    const int32_t * mFirCoefs;
+    static const uint32_t mFirCoefsDown[];
+    static const uint32_t mFirCoefsUp[];
+
+    // ----------------------------------------------------------------------------
+    static const int32_t RESAMPLE_FIR_NUM_COEF       = 8;
+    static const int32_t RESAMPLE_FIR_LERP_INT_BITS  = 7;
+
+    struct Constants {
+        int coefsBits;
+        int cShift;
+        uint32_t cMask;
+        int pShift;
+        uint32_t pMask;
+        // number of zero-crossing on each side
+        unsigned int halfNumCoefs;
+    };
+
+    static Constants highQualityConstants;
+    static Constants veryHighQualityConstants;
+    const Constants *mConstants;    // points to appropriate set of coefficient parameters
+
+    static void init_routine();
+};
+
+// ----------------------------------------------------------------------------
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_SINC_H*/
diff --git a/services/audioflinger/AudioResamplerSincDown.h b/media/libaudioprocessing/AudioResamplerSincDown.h
similarity index 100%
rename from services/audioflinger/AudioResamplerSincDown.h
rename to media/libaudioprocessing/AudioResamplerSincDown.h
diff --git a/services/audioflinger/AudioResamplerSincUp.h b/media/libaudioprocessing/AudioResamplerSincUp.h
similarity index 100%
rename from services/audioflinger/AudioResamplerSincUp.h
rename to media/libaudioprocessing/AudioResamplerSincUp.h
diff --git a/media/libaudioprocessing/BufferProviders.cpp b/media/libaudioprocessing/BufferProviders.cpp
new file mode 100644
index 0000000..862fef6
--- /dev/null
+++ b/media/libaudioprocessing/BufferProviders.cpp
@@ -0,0 +1,596 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "BufferProvider"
+//#define LOG_NDEBUG 0
+
+#include <audio_utils/primitives.h>
+#include <audio_utils/format.h>
+#include <external/sonic/sonic.h>
+#include <media/audiohal/EffectBufferHalInterface.h>
+#include <media/audiohal/EffectHalInterface.h>
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+#include <media/AudioResamplerPublic.h>
+#include <media/BufferProviders.h>
+#include <system/audio_effects/effect_downmix.h>
+#include <utils/Log.h>
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
+#endif
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+template <typename T>
+static inline T min(const T& a, const T& b)
+{
+    return a < b ? a : b;
+}
+
+CopyBufferProvider::CopyBufferProvider(size_t inputFrameSize,
+        size_t outputFrameSize, size_t bufferFrameCount) :
+        mInputFrameSize(inputFrameSize),
+        mOutputFrameSize(outputFrameSize),
+        mLocalBufferFrameCount(bufferFrameCount),
+        mLocalBufferData(NULL),
+        mConsumed(0)
+{
+    ALOGV("CopyBufferProvider(%p)(%zu, %zu, %zu)", this,
+            inputFrameSize, outputFrameSize, bufferFrameCount);
+    LOG_ALWAYS_FATAL_IF(inputFrameSize < outputFrameSize && bufferFrameCount == 0,
+            "Requires local buffer if inputFrameSize(%zu) < outputFrameSize(%zu)",
+            inputFrameSize, outputFrameSize);
+    if (mLocalBufferFrameCount) {
+        (void)posix_memalign(&mLocalBufferData, 32, mLocalBufferFrameCount * mOutputFrameSize);
+    }
+    mBuffer.frameCount = 0;
+}
+
+CopyBufferProvider::~CopyBufferProvider()
+{
+    ALOGV("~CopyBufferProvider(%p)", this);
+    if (mBuffer.frameCount != 0) {
+        mTrackBufferProvider->releaseBuffer(&mBuffer);
+    }
+    free(mLocalBufferData);
+}
+
+status_t CopyBufferProvider::getNextBuffer(AudioBufferProvider::Buffer *pBuffer)
+{
+    //ALOGV("CopyBufferProvider(%p)::getNextBuffer(%p (%zu))",
+    //        this, pBuffer, pBuffer->frameCount);
+    if (mLocalBufferFrameCount == 0) {
+        status_t res = mTrackBufferProvider->getNextBuffer(pBuffer);
+        if (res == OK) {
+            copyFrames(pBuffer->raw, pBuffer->raw, pBuffer->frameCount);
+        }
+        return res;
+    }
+    if (mBuffer.frameCount == 0) {
+        mBuffer.frameCount = pBuffer->frameCount;
+        status_t res = mTrackBufferProvider->getNextBuffer(&mBuffer);
+        // At one time an upstream buffer provider had
+        // res == OK and mBuffer.frameCount == 0, doesn't seem to happen now 7/18/2014.
+        //
+        // By API spec, if res != OK, then mBuffer.frameCount == 0.
+        // but there may be improper implementations.
+        ALOG_ASSERT(res == OK || mBuffer.frameCount == 0);
+        if (res != OK || mBuffer.frameCount == 0) { // not needed by API spec, but to be safe.
+            pBuffer->raw = NULL;
+            pBuffer->frameCount = 0;
+            return res;
+        }
+        mConsumed = 0;
+    }
+    ALOG_ASSERT(mConsumed < mBuffer.frameCount);
+    size_t count = min(mLocalBufferFrameCount, mBuffer.frameCount - mConsumed);
+    count = min(count, pBuffer->frameCount);
+    pBuffer->raw = mLocalBufferData;
+    pBuffer->frameCount = count;
+    copyFrames(pBuffer->raw, (uint8_t*)mBuffer.raw + mConsumed * mInputFrameSize,
+            pBuffer->frameCount);
+    return OK;
+}
+
+void CopyBufferProvider::releaseBuffer(AudioBufferProvider::Buffer *pBuffer)
+{
+    //ALOGV("CopyBufferProvider(%p)::releaseBuffer(%p(%zu))",
+    //        this, pBuffer, pBuffer->frameCount);
+    if (mLocalBufferFrameCount == 0) {
+        mTrackBufferProvider->releaseBuffer(pBuffer);
+        return;
+    }
+    // LOG_ALWAYS_FATAL_IF(pBuffer->frameCount == 0, "Invalid framecount");
+    mConsumed += pBuffer->frameCount; // TODO: update for efficiency to reuse existing content
+    if (mConsumed != 0 && mConsumed >= mBuffer.frameCount) {
+        mTrackBufferProvider->releaseBuffer(&mBuffer);
+        ALOG_ASSERT(mBuffer.frameCount == 0);
+    }
+    pBuffer->raw = NULL;
+    pBuffer->frameCount = 0;
+}
+
+void CopyBufferProvider::reset()
+{
+    if (mBuffer.frameCount != 0) {
+        mTrackBufferProvider->releaseBuffer(&mBuffer);
+    }
+    mConsumed = 0;
+}
+
+DownmixerBufferProvider::DownmixerBufferProvider(
+        audio_channel_mask_t inputChannelMask,
+        audio_channel_mask_t outputChannelMask, audio_format_t format,
+        uint32_t sampleRate, int32_t sessionId, size_t bufferFrameCount) :
+        CopyBufferProvider(
+            audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(inputChannelMask),
+            audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(outputChannelMask),
+            bufferFrameCount)  // set bufferFrameCount to 0 to do in-place
+{
+    ALOGV("DownmixerBufferProvider(%p)(%#x, %#x, %#x %u %d %d)",
+            this, inputChannelMask, outputChannelMask, format,
+            sampleRate, sessionId, (int)bufferFrameCount);
+    if (!sIsMultichannelCapable) {
+        ALOGE("DownmixerBufferProvider() error: not multichannel capable");
+        return;
+    }
+    mEffectsFactory = EffectsFactoryHalInterface::create();
+    if (mEffectsFactory == 0) {
+        ALOGE("DownmixerBufferProvider() error: could not obtain the effects factory");
+        return;
+    }
+    if (mEffectsFactory->createEffect(&sDwnmFxDesc.uuid,
+                                      sessionId,
+                                      SESSION_ID_INVALID_AND_IGNORED,
+                                      &mDownmixInterface) != 0) {
+         ALOGE("DownmixerBufferProvider() error creating downmixer effect");
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+     // channel input configuration will be overridden per-track
+     mDownmixConfig.inputCfg.channels = inputChannelMask;   // FIXME: Should be bits
+     mDownmixConfig.outputCfg.channels = outputChannelMask; // FIXME: should be bits
+     mDownmixConfig.inputCfg.format = format;
+     mDownmixConfig.outputCfg.format = format;
+     mDownmixConfig.inputCfg.samplingRate = sampleRate;
+     mDownmixConfig.outputCfg.samplingRate = sampleRate;
+     mDownmixConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ;
+     mDownmixConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE;
+     // input and output buffer provider, and frame count will not be used as the downmix effect
+     // process() function is called directly (see DownmixerBufferProvider::getNextBuffer())
+     mDownmixConfig.inputCfg.mask = EFFECT_CONFIG_SMP_RATE | EFFECT_CONFIG_CHANNELS |
+             EFFECT_CONFIG_FORMAT | EFFECT_CONFIG_ACC_MODE;
+     mDownmixConfig.outputCfg.mask = mDownmixConfig.inputCfg.mask;
+
+     mInFrameSize =
+             audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(inputChannelMask);
+     mOutFrameSize =
+             audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(outputChannelMask);
+     status_t status;
+     status = EffectBufferHalInterface::mirror(
+             nullptr, mInFrameSize * bufferFrameCount, &mInBuffer);
+     if (status != 0) {
+         ALOGE("DownmixerBufferProvider() error %d while creating input buffer", status);
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+     status = EffectBufferHalInterface::mirror(
+             nullptr, mOutFrameSize * bufferFrameCount, &mOutBuffer);
+     if (status != 0) {
+         ALOGE("DownmixerBufferProvider() error %d while creating output buffer", status);
+         mInBuffer.clear();
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+     mDownmixInterface->setInBuffer(mInBuffer);
+     mDownmixInterface->setOutBuffer(mOutBuffer);
+
+     int cmdStatus;
+     uint32_t replySize = sizeof(int);
+
+     // Configure downmixer
+     status = mDownmixInterface->command(
+             EFFECT_CMD_SET_CONFIG /*cmdCode*/, sizeof(effect_config_t) /*cmdSize*/,
+             &mDownmixConfig /*pCmdData*/,
+             &replySize, &cmdStatus /*pReplyData*/);
+     if (status != 0 || cmdStatus != 0) {
+         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while configuring downmixer",
+                 status, cmdStatus);
+         mOutBuffer.clear();
+         mInBuffer.clear();
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+
+     // Enable downmixer
+     replySize = sizeof(int);
+     status = mDownmixInterface->command(
+             EFFECT_CMD_ENABLE /*cmdCode*/, 0 /*cmdSize*/, NULL /*pCmdData*/,
+             &replySize, &cmdStatus /*pReplyData*/);
+     if (status != 0 || cmdStatus != 0) {
+         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while enabling downmixer",
+                 status, cmdStatus);
+         mOutBuffer.clear();
+         mInBuffer.clear();
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+
+     // Set downmix type
+     // parameter size rounded for padding on 32bit boundary
+     const int psizePadded = ((sizeof(downmix_params_t) - 1)/sizeof(int) + 1) * sizeof(int);
+     const int downmixParamSize =
+             sizeof(effect_param_t) + psizePadded + sizeof(downmix_type_t);
+     effect_param_t * const param = (effect_param_t *) malloc(downmixParamSize);
+     param->psize = sizeof(downmix_params_t);
+     const downmix_params_t downmixParam = DOWNMIX_PARAM_TYPE;
+     memcpy(param->data, &downmixParam, param->psize);
+     const downmix_type_t downmixType = DOWNMIX_TYPE_FOLD;
+     param->vsize = sizeof(downmix_type_t);
+     memcpy(param->data + psizePadded, &downmixType, param->vsize);
+     replySize = sizeof(int);
+     status = mDownmixInterface->command(
+             EFFECT_CMD_SET_PARAM /* cmdCode */, downmixParamSize /* cmdSize */,
+             param /*pCmdData*/, &replySize, &cmdStatus /*pReplyData*/);
+     free(param);
+     if (status != 0 || cmdStatus != 0) {
+         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while setting downmix type",
+                 status, cmdStatus);
+         mOutBuffer.clear();
+         mInBuffer.clear();
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+     ALOGV("DownmixerBufferProvider() downmix type set to %d", (int) downmixType);
+}
+
+DownmixerBufferProvider::~DownmixerBufferProvider()
+{
+    ALOGV("~DownmixerBufferProvider (%p)", this);
+    if (mDownmixInterface != 0) {
+        mDownmixInterface->close();
+    }
+}
+
+void DownmixerBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
+{
+    mInBuffer->setExternalData(const_cast<void*>(src));
+    mInBuffer->setFrameCount(frames);
+    mInBuffer->update(mInFrameSize * frames);
+    mOutBuffer->setFrameCount(frames);
+    mOutBuffer->setExternalData(dst);
+    if (dst != src) {
+        // Downmix may be accumulating, need to populate the output buffer
+        // with the dst data.
+        mOutBuffer->update(mOutFrameSize * frames);
+    }
+    // may be in-place if src == dst.
+    status_t res = mDownmixInterface->process();
+    if (res == OK) {
+        mOutBuffer->commit(mOutFrameSize * frames);
+    } else {
+        ALOGE("DownmixBufferProvider error %d", res);
+    }
+}
+
+/* call once in a pthread_once handler. */
+/*static*/ status_t DownmixerBufferProvider::init()
+{
+    // find multichannel downmix effect if we have to play multichannel content
+    sp<EffectsFactoryHalInterface> effectsFactory = EffectsFactoryHalInterface::create();
+    if (effectsFactory == 0) {
+        ALOGE("AudioMixer() error: could not obtain the effects factory");
+        return NO_INIT;
+    }
+    uint32_t numEffects = 0;
+    int ret = effectsFactory->queryNumberEffects(&numEffects);
+    if (ret != 0) {
+        ALOGE("AudioMixer() error %d querying number of effects", ret);
+        return NO_INIT;
+    }
+    ALOGV("EffectQueryNumberEffects() numEffects=%d", numEffects);
+
+    for (uint32_t i = 0 ; i < numEffects ; i++) {
+        if (effectsFactory->getDescriptor(i, &sDwnmFxDesc) == 0) {
+            ALOGV("effect %d is called %s", i, sDwnmFxDesc.name);
+            if (memcmp(&sDwnmFxDesc.type, EFFECT_UIID_DOWNMIX, sizeof(effect_uuid_t)) == 0) {
+                ALOGI("found effect \"%s\" from %s",
+                        sDwnmFxDesc.name, sDwnmFxDesc.implementor);
+                sIsMultichannelCapable = true;
+                break;
+            }
+        }
+    }
+    ALOGW_IF(!sIsMultichannelCapable, "unable to find downmix effect");
+    return NO_INIT;
+}
+
+/*static*/ bool DownmixerBufferProvider::sIsMultichannelCapable = false;
+/*static*/ effect_descriptor_t DownmixerBufferProvider::sDwnmFxDesc;
+
+RemixBufferProvider::RemixBufferProvider(audio_channel_mask_t inputChannelMask,
+        audio_channel_mask_t outputChannelMask, audio_format_t format,
+        size_t bufferFrameCount) :
+        CopyBufferProvider(
+                audio_bytes_per_sample(format)
+                    * audio_channel_count_from_out_mask(inputChannelMask),
+                audio_bytes_per_sample(format)
+                    * audio_channel_count_from_out_mask(outputChannelMask),
+                bufferFrameCount),
+        mFormat(format),
+        mSampleSize(audio_bytes_per_sample(format)),
+        mInputChannels(audio_channel_count_from_out_mask(inputChannelMask)),
+        mOutputChannels(audio_channel_count_from_out_mask(outputChannelMask))
+{
+    ALOGV("RemixBufferProvider(%p)(%#x, %#x, %#x) %zu %zu",
+            this, format, inputChannelMask, outputChannelMask,
+            mInputChannels, mOutputChannels);
+    (void) memcpy_by_index_array_initialization_from_channel_mask(
+            mIdxAry, ARRAY_SIZE(mIdxAry), outputChannelMask, inputChannelMask);
+}
+
+void RemixBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
+{
+    memcpy_by_index_array(dst, mOutputChannels,
+            src, mInputChannels, mIdxAry, mSampleSize, frames);
+}
+
+ReformatBufferProvider::ReformatBufferProvider(int32_t channelCount,
+        audio_format_t inputFormat, audio_format_t outputFormat,
+        size_t bufferFrameCount) :
+        CopyBufferProvider(
+                channelCount * audio_bytes_per_sample(inputFormat),
+                channelCount * audio_bytes_per_sample(outputFormat),
+                bufferFrameCount),
+        mChannelCount(channelCount),
+        mInputFormat(inputFormat),
+        mOutputFormat(outputFormat)
+{
+    ALOGV("ReformatBufferProvider(%p)(%u, %#x, %#x)",
+            this, channelCount, inputFormat, outputFormat);
+}
+
+void ReformatBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
+{
+    memcpy_by_audio_format(dst, mOutputFormat, src, mInputFormat, frames * mChannelCount);
+}
+
+TimestretchBufferProvider::TimestretchBufferProvider(int32_t channelCount,
+        audio_format_t format, uint32_t sampleRate, const AudioPlaybackRate &playbackRate) :
+        mChannelCount(channelCount),
+        mFormat(format),
+        mSampleRate(sampleRate),
+        mFrameSize(channelCount * audio_bytes_per_sample(format)),
+        mLocalBufferFrameCount(0),
+        mLocalBufferData(NULL),
+        mRemaining(0),
+        mSonicStream(sonicCreateStream(sampleRate, mChannelCount)),
+        mFallbackFailErrorShown(false),
+        mAudioPlaybackRateValid(false)
+{
+    LOG_ALWAYS_FATAL_IF(mSonicStream == NULL,
+            "TimestretchBufferProvider can't allocate Sonic stream");
+
+    setPlaybackRate(playbackRate);
+    ALOGV("TimestretchBufferProvider(%p)(%u, %#x, %u %f %f %d %d)",
+            this, channelCount, format, sampleRate, playbackRate.mSpeed,
+            playbackRate.mPitch, playbackRate.mStretchMode, playbackRate.mFallbackMode);
+    mBuffer.frameCount = 0;
+}
+
+TimestretchBufferProvider::~TimestretchBufferProvider()
+{
+    ALOGV("~TimestretchBufferProvider(%p)", this);
+    sonicDestroyStream(mSonicStream);
+    if (mBuffer.frameCount != 0) {
+        mTrackBufferProvider->releaseBuffer(&mBuffer);
+    }
+    free(mLocalBufferData);
+}
+
+status_t TimestretchBufferProvider::getNextBuffer(
+        AudioBufferProvider::Buffer *pBuffer)
+{
+    ALOGV("TimestretchBufferProvider(%p)::getNextBuffer(%p (%zu))",
+            this, pBuffer, pBuffer->frameCount);
+
+    // BYPASS
+    //return mTrackBufferProvider->getNextBuffer(pBuffer);
+
+    // check if previously processed data is sufficient.
+    if (pBuffer->frameCount <= mRemaining) {
+        ALOGV("previous sufficient");
+        pBuffer->raw = mLocalBufferData;
+        return OK;
+    }
+
+    // do we need to resize our buffer?
+    if (pBuffer->frameCount > mLocalBufferFrameCount) {
+        void *newmem;
+        if (posix_memalign(&newmem, 32, pBuffer->frameCount * mFrameSize) == OK) {
+            if (mRemaining != 0) {
+                memcpy(newmem, mLocalBufferData, mRemaining * mFrameSize);
+            }
+            free(mLocalBufferData);
+            mLocalBufferData = newmem;
+            mLocalBufferFrameCount = pBuffer->frameCount;
+        }
+    }
+
+    // need to fetch more data
+    const size_t outputDesired = pBuffer->frameCount - mRemaining;
+    size_t dstAvailable;
+    do {
+        mBuffer.frameCount = mPlaybackRate.mSpeed == AUDIO_TIMESTRETCH_SPEED_NORMAL
+                ? outputDesired : outputDesired * mPlaybackRate.mSpeed + 1;
+
+        status_t res = mTrackBufferProvider->getNextBuffer(&mBuffer);
+
+        ALOG_ASSERT(res == OK || mBuffer.frameCount == 0);
+        if (res != OK || mBuffer.frameCount == 0) { // not needed by API spec, but to be safe.
+            ALOGV("upstream provider cannot provide data");
+            if (mRemaining == 0) {
+                pBuffer->raw = NULL;
+                pBuffer->frameCount = 0;
+                return res;
+            } else { // return partial count
+                pBuffer->raw = mLocalBufferData;
+                pBuffer->frameCount = mRemaining;
+                return OK;
+            }
+        }
+
+        // time-stretch the data
+        dstAvailable = min(mLocalBufferFrameCount - mRemaining, outputDesired);
+        size_t srcAvailable = mBuffer.frameCount;
+        processFrames((uint8_t*)mLocalBufferData + mRemaining * mFrameSize, &dstAvailable,
+                mBuffer.raw, &srcAvailable);
+
+        // release all data consumed
+        mBuffer.frameCount = srcAvailable;
+        mTrackBufferProvider->releaseBuffer(&mBuffer);
+    } while (dstAvailable == 0); // try until we get output data or upstream provider fails.
+
+    // update buffer vars with the actual data processed and return with buffer
+    mRemaining += dstAvailable;
+
+    pBuffer->raw = mLocalBufferData;
+    pBuffer->frameCount = mRemaining;
+
+    return OK;
+}
+
+void TimestretchBufferProvider::releaseBuffer(AudioBufferProvider::Buffer *pBuffer)
+{
+    ALOGV("TimestretchBufferProvider(%p)::releaseBuffer(%p (%zu))",
+       this, pBuffer, pBuffer->frameCount);
+
+    // BYPASS
+    //return mTrackBufferProvider->releaseBuffer(pBuffer);
+
+    // LOG_ALWAYS_FATAL_IF(pBuffer->frameCount == 0, "Invalid framecount");
+    if (pBuffer->frameCount < mRemaining) {
+        memcpy(mLocalBufferData,
+                (uint8_t*)mLocalBufferData + pBuffer->frameCount * mFrameSize,
+                (mRemaining - pBuffer->frameCount) * mFrameSize);
+        mRemaining -= pBuffer->frameCount;
+    } else if (pBuffer->frameCount == mRemaining) {
+        mRemaining = 0;
+    } else {
+        LOG_ALWAYS_FATAL("Releasing more frames(%zu) than available(%zu)",
+                pBuffer->frameCount, mRemaining);
+    }
+
+    pBuffer->raw = NULL;
+    pBuffer->frameCount = 0;
+}
+
+void TimestretchBufferProvider::reset()
+{
+    mRemaining = 0;
+}
+
+status_t TimestretchBufferProvider::setPlaybackRate(const AudioPlaybackRate &playbackRate)
+{
+    mPlaybackRate = playbackRate;
+    mFallbackFailErrorShown = false;
+    sonicSetSpeed(mSonicStream, mPlaybackRate.mSpeed);
+    //TODO: pitch is ignored for now
+    //TODO: optimize: if parameters are the same, don't do any extra computation.
+
+    mAudioPlaybackRateValid = isAudioPlaybackRateValid(mPlaybackRate);
+    return OK;
+}
+
+void TimestretchBufferProvider::processFrames(void *dstBuffer, size_t *dstFrames,
+        const void *srcBuffer, size_t *srcFrames)
+{
+    ALOGV("processFrames(%zu %zu)  remaining(%zu)", *dstFrames, *srcFrames, mRemaining);
+    // Note dstFrames is the required number of frames.
+
+    if (!mAudioPlaybackRateValid) {
+        //fallback mode
+        // Ensure consumption from src is as expected.
+        // TODO: add logic to track "very accurate" consumption related to speed, original sampling
+        // rate, actual frames processed.
+
+        const size_t targetSrc = *dstFrames * mPlaybackRate.mSpeed;
+        if (*srcFrames < targetSrc) { // limit dst frames to that possible
+            *dstFrames = *srcFrames / mPlaybackRate.mSpeed;
+        } else if (*srcFrames > targetSrc + 1) {
+            *srcFrames = targetSrc + 1;
+        }
+        if (*dstFrames > 0) {
+            switch(mPlaybackRate.mFallbackMode) {
+            case AUDIO_TIMESTRETCH_FALLBACK_CUT_REPEAT:
+                if (*dstFrames <= *srcFrames) {
+                      size_t copySize = mFrameSize * *dstFrames;
+                      memcpy(dstBuffer, srcBuffer, copySize);
+                  } else {
+                      // cyclically repeat the source.
+                      for (size_t count = 0; count < *dstFrames; count += *srcFrames) {
+                          size_t remaining = min(*srcFrames, *dstFrames - count);
+                          memcpy((uint8_t*)dstBuffer + mFrameSize * count,
+                                  srcBuffer, mFrameSize * remaining);
+                      }
+                  }
+                break;
+            case AUDIO_TIMESTRETCH_FALLBACK_DEFAULT:
+            case AUDIO_TIMESTRETCH_FALLBACK_MUTE:
+                memset(dstBuffer,0, mFrameSize * *dstFrames);
+                break;
+            case AUDIO_TIMESTRETCH_FALLBACK_FAIL:
+            default:
+                if(!mFallbackFailErrorShown) {
+                    ALOGE("invalid parameters in TimestretchBufferProvider fallbackMode:%d",
+                            mPlaybackRate.mFallbackMode);
+                    mFallbackFailErrorShown = true;
+                }
+                break;
+            }
+        }
+    } else {
+        switch (mFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            if (sonicWriteFloatToStream(mSonicStream, (float*)srcBuffer, *srcFrames) != 1) {
+                ALOGE("sonicWriteFloatToStream cannot realloc");
+                *srcFrames = 0; // cannot consume all of srcBuffer
+            }
+            *dstFrames = sonicReadFloatFromStream(mSonicStream, (float*)dstBuffer, *dstFrames);
+            break;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            if (sonicWriteShortToStream(mSonicStream, (short*)srcBuffer, *srcFrames) != 1) {
+                ALOGE("sonicWriteShortToStream cannot realloc");
+                *srcFrames = 0; // cannot consume all of srcBuffer
+            }
+            *dstFrames = sonicReadShortFromStream(mSonicStream, (short*)dstBuffer, *dstFrames);
+            break;
+        default:
+            // could also be caught on construction
+            LOG_ALWAYS_FATAL("invalid format %#x for TimestretchBufferProvider", mFormat);
+        }
+    }
+}
+// ----------------------------------------------------------------------------
+} // namespace android
diff --git a/media/libaudioprocessing/RecordBufferConverter.cpp b/media/libaudioprocessing/RecordBufferConverter.cpp
new file mode 100644
index 0000000..54151f5
--- /dev/null
+++ b/media/libaudioprocessing/RecordBufferConverter.cpp
@@ -0,0 +1,294 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "RecordBufferConverter"
+//#define LOG_NDEBUG 0
+
+#include <audio_utils/primitives.h>
+#include <audio_utils/format.h>
+#include <media/AudioMixer.h>  // for UNITY_GAIN_FLOAT
+#include <media/AudioResampler.h>
+#include <media/BufferProviders.h>
+#include <media/RecordBufferConverter.h>
+#include <utils/Log.h>
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
+#endif
+
+template <typename T>
+static inline T max(const T& a, const T& b)
+{
+    return a > b ? a : b;
+}
+
+namespace android {
+
+RecordBufferConverter::RecordBufferConverter(
+        audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
+        uint32_t srcSampleRate,
+        audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
+        uint32_t dstSampleRate) :
+            mSrcChannelMask(AUDIO_CHANNEL_INVALID), // updateParameters will set following vars
+            // mSrcFormat
+            // mSrcSampleRate
+            // mDstChannelMask
+            // mDstFormat
+            // mDstSampleRate
+            // mSrcChannelCount
+            // mDstChannelCount
+            // mDstFrameSize
+            mBuf(NULL), mBufFrames(0), mBufFrameSize(0),
+            mResampler(NULL),
+            mIsLegacyDownmix(false),
+            mIsLegacyUpmix(false),
+            mRequiresFloat(false),
+            mInputConverterProvider(NULL)
+{
+    (void)updateParameters(srcChannelMask, srcFormat, srcSampleRate,
+            dstChannelMask, dstFormat, dstSampleRate);
+}
+
+RecordBufferConverter::~RecordBufferConverter() {
+    free(mBuf);
+    delete mResampler;
+    delete mInputConverterProvider;
+}
+
+void RecordBufferConverter::reset() {
+    if (mResampler != NULL) {
+        mResampler->reset();
+    }
+}
+
+size_t RecordBufferConverter::convert(void *dst,
+        AudioBufferProvider *provider, size_t frames)
+{
+    if (mInputConverterProvider != NULL) {
+        mInputConverterProvider->setBufferProvider(provider);
+        provider = mInputConverterProvider;
+    }
+
+    if (mResampler == NULL) {
+        ALOGV("NO RESAMPLING sampleRate:%u mSrcFormat:%#x mDstFormat:%#x",
+                mSrcSampleRate, mSrcFormat, mDstFormat);
+
+        AudioBufferProvider::Buffer buffer;
+        for (size_t i = frames; i > 0; ) {
+            buffer.frameCount = i;
+            status_t status = provider->getNextBuffer(&buffer);
+            if (status != OK || buffer.frameCount == 0) {
+                frames -= i; // cannot fill request.
+                break;
+            }
+            // format convert to destination buffer
+            convertNoResampler(dst, buffer.raw, buffer.frameCount);
+
+            dst = (int8_t*)dst + buffer.frameCount * mDstFrameSize;
+            i -= buffer.frameCount;
+            provider->releaseBuffer(&buffer);
+        }
+    } else {
+         ALOGV("RESAMPLING mSrcSampleRate:%u mDstSampleRate:%u mSrcFormat:%#x mDstFormat:%#x",
+                 mSrcSampleRate, mDstSampleRate, mSrcFormat, mDstFormat);
+
+         // reallocate buffer if needed
+         if (mBufFrameSize != 0 && mBufFrames < frames) {
+             free(mBuf);
+             mBufFrames = frames;
+             (void)posix_memalign(&mBuf, 32, mBufFrames * mBufFrameSize);
+         }
+        // resampler accumulates, but we only have one source track
+        memset(mBuf, 0, frames * mBufFrameSize);
+        frames = mResampler->resample((int32_t*)mBuf, frames, provider);
+        // format convert to destination buffer
+        convertResampler(dst, mBuf, frames);
+    }
+    return frames;
+}
+
+status_t RecordBufferConverter::updateParameters(
+        audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
+        uint32_t srcSampleRate,
+        audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
+        uint32_t dstSampleRate)
+{
+    // quick evaluation if there is any change.
+    if (mSrcFormat == srcFormat
+            && mSrcChannelMask == srcChannelMask
+            && mSrcSampleRate == srcSampleRate
+            && mDstFormat == dstFormat
+            && mDstChannelMask == dstChannelMask
+            && mDstSampleRate == dstSampleRate) {
+        return NO_ERROR;
+    }
+
+    ALOGV("RecordBufferConverter updateParameters srcMask:%#x dstMask:%#x"
+            "  srcFormat:%#x dstFormat:%#x  srcRate:%u dstRate:%u",
+            srcChannelMask, dstChannelMask, srcFormat, dstFormat, srcSampleRate, dstSampleRate);
+    const bool valid =
+            audio_is_input_channel(srcChannelMask)
+            && audio_is_input_channel(dstChannelMask)
+            && audio_is_valid_format(srcFormat) && audio_is_linear_pcm(srcFormat)
+            && audio_is_valid_format(dstFormat) && audio_is_linear_pcm(dstFormat)
+            && (srcSampleRate <= dstSampleRate * AUDIO_RESAMPLER_DOWN_RATIO_MAX)
+            ; // no upsampling checks for now
+    if (!valid) {
+        return BAD_VALUE;
+    }
+
+    mSrcFormat = srcFormat;
+    mSrcChannelMask = srcChannelMask;
+    mSrcSampleRate = srcSampleRate;
+    mDstFormat = dstFormat;
+    mDstChannelMask = dstChannelMask;
+    mDstSampleRate = dstSampleRate;
+
+    // compute derived parameters
+    mSrcChannelCount = audio_channel_count_from_in_mask(srcChannelMask);
+    mDstChannelCount = audio_channel_count_from_in_mask(dstChannelMask);
+    mDstFrameSize = mDstChannelCount * audio_bytes_per_sample(mDstFormat);
+
+    // do we need to resample?
+    delete mResampler;
+    mResampler = NULL;
+    if (mSrcSampleRate != mDstSampleRate) {
+        mResampler = AudioResampler::create(AUDIO_FORMAT_PCM_FLOAT,
+                mSrcChannelCount, mDstSampleRate);
+        mResampler->setSampleRate(mSrcSampleRate);
+        mResampler->setVolume(AudioMixer::UNITY_GAIN_FLOAT, AudioMixer::UNITY_GAIN_FLOAT);
+    }
+
+    // are we running legacy channel conversion modes?
+    mIsLegacyDownmix = (mSrcChannelMask == AUDIO_CHANNEL_IN_STEREO
+                            || mSrcChannelMask == AUDIO_CHANNEL_IN_FRONT_BACK)
+                   && mDstChannelMask == AUDIO_CHANNEL_IN_MONO;
+    mIsLegacyUpmix = mSrcChannelMask == AUDIO_CHANNEL_IN_MONO
+                   && (mDstChannelMask == AUDIO_CHANNEL_IN_STEREO
+                            || mDstChannelMask == AUDIO_CHANNEL_IN_FRONT_BACK);
+
+    // do we need to process in float?
+    mRequiresFloat = mResampler != NULL || mIsLegacyDownmix || mIsLegacyUpmix;
+
+    // do we need a staging buffer to convert for destination (we can still optimize this)?
+    // we use mBufFrameSize > 0 to indicate both frame size as well as buffer necessity
+    if (mResampler != NULL) {
+        mBufFrameSize = max(mSrcChannelCount, (uint32_t)FCC_2)
+                * audio_bytes_per_sample(AUDIO_FORMAT_PCM_FLOAT);
+    } else if (mIsLegacyUpmix || mIsLegacyDownmix) { // legacy modes always float
+        mBufFrameSize = mDstChannelCount * audio_bytes_per_sample(AUDIO_FORMAT_PCM_FLOAT);
+    } else if (mSrcChannelMask != mDstChannelMask && mDstFormat != mSrcFormat) {
+        mBufFrameSize = mDstChannelCount * audio_bytes_per_sample(mSrcFormat);
+    } else {
+        mBufFrameSize = 0;
+    }
+    mBufFrames = 0; // force the buffer to be resized.
+
+    // do we need an input converter buffer provider to give us float?
+    delete mInputConverterProvider;
+    mInputConverterProvider = NULL;
+    if (mRequiresFloat && mSrcFormat != AUDIO_FORMAT_PCM_FLOAT) {
+        mInputConverterProvider = new ReformatBufferProvider(
+                audio_channel_count_from_in_mask(mSrcChannelMask),
+                mSrcFormat,
+                AUDIO_FORMAT_PCM_FLOAT,
+                256 /* provider buffer frame count */);
+    }
+
+    // do we need a remixer to do channel mask conversion
+    if (!mIsLegacyDownmix && !mIsLegacyUpmix && mSrcChannelMask != mDstChannelMask) {
+        (void) memcpy_by_index_array_initialization_from_channel_mask(
+                mIdxAry, ARRAY_SIZE(mIdxAry), mDstChannelMask, mSrcChannelMask);
+    }
+    return NO_ERROR;
+}
+
+void RecordBufferConverter::convertNoResampler(
+        void *dst, const void *src, size_t frames)
+{
+    // src is native type unless there is legacy upmix or downmix, whereupon it is float.
+    if (mBufFrameSize != 0 && mBufFrames < frames) {
+        free(mBuf);
+        mBufFrames = frames;
+        (void)posix_memalign(&mBuf, 32, mBufFrames * mBufFrameSize);
+    }
+    // do we need to do legacy upmix and downmix?
+    if (mIsLegacyUpmix || mIsLegacyDownmix) {
+        void *dstBuf = mBuf != NULL ? mBuf : dst;
+        if (mIsLegacyUpmix) {
+            upmix_to_stereo_float_from_mono_float((float *)dstBuf,
+                    (const float *)src, frames);
+        } else /*mIsLegacyDownmix */ {
+            downmix_to_mono_float_from_stereo_float((float *)dstBuf,
+                    (const float *)src, frames);
+        }
+        if (mBuf != NULL) {
+            memcpy_by_audio_format(dst, mDstFormat, mBuf, AUDIO_FORMAT_PCM_FLOAT,
+                    frames * mDstChannelCount);
+        }
+        return;
+    }
+    // do we need to do channel mask conversion?
+    if (mSrcChannelMask != mDstChannelMask) {
+        void *dstBuf = mBuf != NULL ? mBuf : dst;
+        memcpy_by_index_array(dstBuf, mDstChannelCount,
+                src, mSrcChannelCount, mIdxAry, audio_bytes_per_sample(mSrcFormat), frames);
+        if (dstBuf == dst) {
+            return; // format is the same
+        }
+    }
+    // convert to destination buffer
+    const void *convertBuf = mBuf != NULL ? mBuf : src;
+    memcpy_by_audio_format(dst, mDstFormat, convertBuf, mSrcFormat,
+            frames * mDstChannelCount);
+}
+
+void RecordBufferConverter::convertResampler(
+        void *dst, /*not-a-const*/ void *src, size_t frames)
+{
+    // src buffer format is ALWAYS float when entering this routine
+    if (mIsLegacyUpmix) {
+        ; // mono to stereo already handled by resampler
+    } else if (mIsLegacyDownmix
+            || (mSrcChannelMask == mDstChannelMask && mSrcChannelCount == 1)) {
+        // the resampler outputs stereo for mono input channel (a feature?)
+        // must convert to mono
+        downmix_to_mono_float_from_stereo_float((float *)src,
+                (const float *)src, frames);
+    } else if (mSrcChannelMask != mDstChannelMask) {
+        // convert to mono channel again for channel mask conversion (could be skipped
+        // with further optimization).
+        if (mSrcChannelCount == 1) {
+            downmix_to_mono_float_from_stereo_float((float *)src,
+                (const float *)src, frames);
+        }
+        // convert to destination format (in place, OK as float is larger than other types)
+        if (mDstFormat != AUDIO_FORMAT_PCM_FLOAT) {
+            memcpy_by_audio_format(src, mDstFormat, src, AUDIO_FORMAT_PCM_FLOAT,
+                    frames * mSrcChannelCount);
+        }
+        // channel convert and save to dst
+        memcpy_by_index_array(dst, mDstChannelCount,
+                src, mSrcChannelCount, mIdxAry, audio_bytes_per_sample(mDstFormat), frames);
+        return;
+    }
+    // convert to destination format and save to dst
+    memcpy_by_audio_format(dst, mDstFormat, src, AUDIO_FORMAT_PCM_FLOAT,
+            frames * mDstChannelCount);
+}
+
+// ----------------------------------------------------------------------------
+} // namespace android
diff --git a/services/audioflinger/audio-resampler/Android.mk b/media/libaudioprocessing/audio-resampler/Android.mk
similarity index 100%
rename from services/audioflinger/audio-resampler/Android.mk
rename to media/libaudioprocessing/audio-resampler/Android.mk
diff --git a/services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp b/media/libaudioprocessing/audio-resampler/AudioResamplerCoefficients.cpp
similarity index 100%
rename from services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp
rename to media/libaudioprocessing/audio-resampler/AudioResamplerCoefficients.cpp
diff --git a/services/audioflinger/audio-resampler/filter_coefficients.h b/media/libaudioprocessing/audio-resampler/filter_coefficients.h
similarity index 100%
rename from services/audioflinger/audio-resampler/filter_coefficients.h
rename to media/libaudioprocessing/audio-resampler/filter_coefficients.h
diff --git a/services/audioflinger/AudioResampler.h b/media/libaudioprocessing/include/AudioResampler.h
similarity index 100%
rename from services/audioflinger/AudioResampler.h
rename to media/libaudioprocessing/include/AudioResampler.h
diff --git a/include/media/AudioResamplerPublic.h b/media/libaudioprocessing/include/AudioResamplerPublic.h
similarity index 100%
rename from include/media/AudioResamplerPublic.h
rename to media/libaudioprocessing/include/AudioResamplerPublic.h
diff --git a/media/libaudioprocessing/tests/Android.mk b/media/libaudioprocessing/tests/Android.mk
new file mode 100644
index 0000000..23e1c3a
--- /dev/null
+++ b/media/libaudioprocessing/tests/Android.mk
@@ -0,0 +1,87 @@
+# Build the unit tests for libaudioprocessing
+
+LOCAL_PATH := $(call my-dir)
+
+#
+# resampler unit test
+#
+include $(CLEAR_VARS)
+
+LOCAL_SHARED_LIBRARIES := \
+    libaudioutils \
+    libaudioprocessing \
+    libcutils \
+    liblog \
+    libutils \
+
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+
+LOCAL_SRC_FILES := \
+    resampler_tests.cpp
+
+LOCAL_MODULE := resampler_tests
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_CFLAGS := -Werror -Wall
+
+include $(BUILD_NATIVE_TEST)
+
+#
+# audio mixer test tool
+#
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    test-mixer.cpp \
+
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+
+LOCAL_STATIC_LIBRARIES := \
+    libsndfile \
+
+LOCAL_SHARED_LIBRARIES := \
+    libaudioprocessing \
+    libaudioutils \
+    libcutils \
+    liblog \
+    libutils \
+
+LOCAL_MODULE := test-mixer
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_CFLAGS := -Werror -Wall
+
+include $(BUILD_EXECUTABLE)
+
+#
+# build audio resampler test tool
+#
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    test-resampler.cpp \
+
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+
+LOCAL_STATIC_LIBRARIES := \
+    libsndfile \
+
+LOCAL_SHARED_LIBRARIES := \
+    libaudioprocessing \
+    libaudioutils \
+    libcutils \
+    liblog \
+    libutils \
+
+LOCAL_MODULE := test-resampler
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_CFLAGS := -Werror -Wall
+
+include $(BUILD_EXECUTABLE)
diff --git a/media/libaudioprocessing/tests/README b/media/libaudioprocessing/tests/README
new file mode 100644
index 0000000..ed7e2ed
--- /dev/null
+++ b/media/libaudioprocessing/tests/README
@@ -0,0 +1,13 @@
+For libsonic dependency:
+pushd $ANDROID_BUILD_TOP/external/sonic
+mm
+popd
+
+To build audio processing library:
+pushd ..
+Optionally uncomment USE_NEON=false in Android.mk
+mm
+popd
+
+Then build here:
+mm
diff --git a/media/libaudioprocessing/tests/build_and_run_all_unit_tests.sh b/media/libaudioprocessing/tests/build_and_run_all_unit_tests.sh
new file mode 100755
index 0000000..704d095
--- /dev/null
+++ b/media/libaudioprocessing/tests/build_and_run_all_unit_tests.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+
+if [ -z "$ANDROID_BUILD_TOP" ]; then
+    echo "Android build environment not set"
+    exit -1
+fi
+
+# ensure we have mm
+. $ANDROID_BUILD_TOP/build/envsetup.sh
+
+pushd $ANDROID_BUILD_TOP/frameworks/av/media/libaudioprocessing
+pwd
+mm
+
+echo "waiting for device"
+adb root && adb wait-for-device remount
+adb push $OUT/system/lib/libaudioresampler.so /system/lib
+adb push $OUT/system/lib64/libaudioresampler.so /system/lib64
+adb push $OUT/data/nativetest/resampler_tests/resampler_tests /data/nativetest/resampler_tests/resampler_tests
+adb push $OUT/data/nativetest64/resampler_tests/resampler_tests /data/nativetest64/resampler_tests/resampler_tests
+
+sh $ANDROID_BUILD_TOP/frameworks/av/media/libaudioprocessing/tests/run_all_unit_tests.sh
+
+popd
diff --git a/media/libaudioprocessing/tests/mixer_to_wav_tests.sh b/media/libaudioprocessing/tests/mixer_to_wav_tests.sh
new file mode 100755
index 0000000..72b02fc
--- /dev/null
+++ b/media/libaudioprocessing/tests/mixer_to_wav_tests.sh
@@ -0,0 +1,145 @@
+#!/bin/bash
+#
+# This script uses test-mixer to generate WAV files
+# for evaluation of the AudioMixer component.
+#
+# Sine and chirp signals are used for input because they
+# show up as clear lines, either horizontal or diagonal,
+# on a spectrogram. This means easy verification of multiple
+# track mixing.
+#
+# After execution, look for created subdirectories like
+# mixer_i_i
+# mixer_i_f
+# mixer_f_f
+#
+# Recommend using a program such as audacity to evaluate
+# the output WAV files, e.g.
+#
+# cd testdir
+# audacity *.wav
+#
+# Using Audacity:
+#
+# Under "Waveform" view mode you can zoom into the
+# start of the WAV file to verify proper ramping.
+#
+# Select "Spectrogram" to see verify the lines
+# (sine = horizontal, chirp = diagonal) which should
+# be clear (except for around the start as the volume
+# ramping causes spectral distortion).
+
+if [ -z "$ANDROID_BUILD_TOP" ]; then
+    echo "Android build environment not set"
+    exit -1
+fi
+
+# ensure we have mm
+. $ANDROID_BUILD_TOP/build/envsetup.sh
+
+pushd $ANDROID_BUILD_TOP/frameworks/av/media/libaudioprocessing
+
+# build
+pwd
+mm
+
+# send to device
+echo "waiting for device"
+adb root && adb wait-for-device remount
+adb push $OUT/system/lib/libaudioprocessing.so /system/lib
+adb push $OUT/system/lib64/libaudioprocessing.so /system/lib64
+adb push $OUT/system/bin/test-mixer /system/bin
+
+# createwav creates a series of WAV files testing various
+# mixer settings
+# $1 = flags
+# $2 = directory
+function createwav() {
+# create directory if it doesn't exist
+    if [ ! -d $2 ]; then
+        mkdir $2
+    fi
+
+# Test:
+# process__genericResampling with mixed integer and float track input
+# track__Resample / track__genericResample
+    adb shell test-mixer $1 -s 48000 \
+        -o /sdcard/tm48000grif.wav \
+        sine:2,4000,7520 chirp:2,9200 sine:1,3000,18000 \
+        sine:f,6,6000,19000  chirp:i,4,30000
+    adb pull /sdcard/tm48000grif.wav $2
+
+# Test:
+# process__genericResampling
+# track__Resample / track__genericResample
+    adb shell test-mixer $1 -s 48000 \
+        -o /sdcard/tm48000gr.wav \
+        sine:2,4000,7520 chirp:2,9200 sine:1,3000,18000 \
+        sine:6,6000,19000
+    adb pull /sdcard/tm48000gr.wav $2
+
+# Test:
+# process__genericResample
+# track__Resample / track__genericResample
+# track__NoResample / track__16BitsStereo / track__16BitsMono
+# Aux buffer
+    adb shell test-mixer $1 -c 5 -s 9307 \
+        -a /sdcard/aux9307gra.wav -o /sdcard/tm9307gra.wav \
+        sine:4,1000,3000 sine:1,2000,9307 chirp:3,9307
+    adb pull /sdcard/tm9307gra.wav $2
+    adb pull /sdcard/aux9307gra.wav $2
+
+# Test:
+# process__genericNoResampling
+# track__NoResample / track__16BitsStereo / track__16BitsMono
+    adb shell test-mixer $1 -s 32000 \
+        -o /sdcard/tm32000gnr.wav \
+        sine:2,1000,32000 chirp:2,32000  sine:1,3000,32000
+    adb pull /sdcard/tm32000gnr.wav $2
+
+# Test:
+# process__genericNoResampling
+# track__NoResample / track__16BitsStereo / track__16BitsMono
+# Aux buffer
+    adb shell test-mixer $1 -s 32000 \
+        -a /sdcard/aux32000gnra.wav -o /sdcard/tm32000gnra.wav \
+        sine:2,1000,32000 chirp:2,32000  sine:1,3000,32000
+    adb pull /sdcard/tm32000gnra.wav $2
+    adb pull /sdcard/aux32000gnra.wav $2
+
+# Test:
+# process__NoResampleOneTrack / process__OneTrack16BitsStereoNoResampling
+# Downmixer
+    adb shell test-mixer $1 -s 32000 \
+        -o /sdcard/tm32000nrot.wav \
+        sine:6,1000,32000
+    adb pull /sdcard/tm32000nrot.wav $2
+
+# Test:
+# process__NoResampleOneTrack / OneTrack16BitsStereoNoResampling
+# Aux buffer
+    adb shell test-mixer $1 -s 44100 \
+        -a /sdcard/aux44100nrota.wav -o /sdcard/tm44100nrota.wav \
+        sine:2,2000,44100
+    adb pull /sdcard/tm44100nrota.wav $2
+    adb pull /sdcard/aux44100nrota.wav $2
+}
+
+#
+# Call createwav to generate WAV files in various combinations
+#
+# i_i = integer input track, integer mixer output
+# f_f = float input track,   float mixer output
+# i_f = integer input track, float_mixer output
+#
+# If the mixer output is float, then the output WAV file is pcm float.
+#
+# TODO: create a "snr" like "diff" to automatically
+# compare files in these directories together.
+#
+
+createwav "" "tests/mixer_i_i"
+createwav "-f -m" "tests/mixer_f_f"
+createwav "-m" "tests/mixer_i_f"
+
+popd
diff --git a/media/libaudioprocessing/tests/resampler_tests.cpp b/media/libaudioprocessing/tests/resampler_tests.cpp
new file mode 100644
index 0000000..a23c000
--- /dev/null
+++ b/media/libaudioprocessing/tests/resampler_tests.cpp
@@ -0,0 +1,486 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "audioflinger_resampler_tests"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <iostream>
+#include <utility>
+#include <vector>
+
+#include <gtest/gtest.h>
+#include <log/log.h>
+#include <media/AudioBufferProvider.h>
+
+#include <media/AudioResampler.h>
+#include "test_utils.h"
+
+template <typename T>
+static void printData(T *data, size_t size) {
+    const size_t stride = 8;
+    for (size_t i = 0; i < size; ) {
+        for (size_t j = 0; j < stride && i < size; ++j) {
+            std::cout << data[i++] << ' ';  // extra space before newline
+        }
+        std::cout << '\n'; // or endl
+    }
+}
+
+void resample(int channels, void *output,
+        size_t outputFrames, const std::vector<size_t> &outputIncr,
+        android::AudioBufferProvider *provider, android::AudioResampler *resampler)
+{
+    for (size_t i = 0, j = 0; i < outputFrames; ) {
+        size_t thisFrames = outputIncr[j++];
+        if (j >= outputIncr.size()) {
+            j = 0;
+        }
+        if (thisFrames == 0 || thisFrames > outputFrames - i) {
+            thisFrames = outputFrames - i;
+        }
+        size_t framesResampled = resampler->resample(
+                (int32_t*) output + channels*i, thisFrames, provider);
+        // we should have enough buffer space, so there is no short count.
+        ASSERT_EQ(thisFrames, framesResampled);
+        i += thisFrames;
+    }
+}
+
+void buffercmp(const void *reference, const void *test,
+        size_t outputFrameSize, size_t outputFrames)
+{
+    for (size_t i = 0; i < outputFrames; ++i) {
+        int check = memcmp((const char*)reference + i * outputFrameSize,
+                (const char*)test + i * outputFrameSize, outputFrameSize);
+        if (check) {
+            ALOGE("Failure at frame %zu", i);
+            ASSERT_EQ(check, 0); /* fails */
+        }
+    }
+}
+
+void testBufferIncrement(size_t channels, bool useFloat,
+        unsigned inputFreq, unsigned outputFreq,
+        enum android::AudioResampler::src_quality quality)
+{
+    const audio_format_t format = useFloat ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
+    // create the provider
+    std::vector<int> inputIncr;
+    SignalProvider provider;
+    if (useFloat) {
+        provider.setChirp<float>(channels,
+                0., outputFreq/2., outputFreq, outputFreq/2000.);
+    } else {
+        provider.setChirp<int16_t>(channels,
+                0., outputFreq/2., outputFreq, outputFreq/2000.);
+    }
+    provider.setIncr(inputIncr);
+
+    // calculate the output size
+    size_t outputFrames = ((int64_t) provider.getNumFrames() * outputFreq) / inputFreq;
+    size_t outputFrameSize = (channels == 1 ? 2 : channels) * (useFloat ? sizeof(float) : sizeof(int32_t));
+    size_t outputSize = outputFrameSize * outputFrames;
+    outputSize &= ~7;
+
+    // create the resampler
+    android::AudioResampler* resampler;
+
+    resampler = android::AudioResampler::create(format, channels, outputFreq, quality);
+    resampler->setSampleRate(inputFreq);
+    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
+            android::AudioResampler::UNITY_GAIN_FLOAT);
+
+    // set up the reference run
+    std::vector<size_t> refIncr;
+    refIncr.push_back(outputFrames);
+    void* reference = calloc(outputFrames, outputFrameSize);
+    resample(channels, reference, outputFrames, refIncr, &provider, resampler);
+
+    provider.reset();
+
+#if 0
+    /* this test will fail - API interface issue: reset() does not clear internal buffers */
+    resampler->reset();
+#else
+    delete resampler;
+    resampler = android::AudioResampler::create(format, channels, outputFreq, quality);
+    resampler->setSampleRate(inputFreq);
+    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
+            android::AudioResampler::UNITY_GAIN_FLOAT);
+#endif
+
+    // set up the test run
+    std::vector<size_t> outIncr;
+    outIncr.push_back(1);
+    outIncr.push_back(2);
+    outIncr.push_back(3);
+    void* test = calloc(outputFrames, outputFrameSize);
+    inputIncr.push_back(1);
+    inputIncr.push_back(3);
+    provider.setIncr(inputIncr);
+    resample(channels, test, outputFrames, outIncr, &provider, resampler);
+
+    // check
+    buffercmp(reference, test, outputFrameSize, outputFrames);
+
+    free(reference);
+    free(test);
+    delete resampler;
+}
+
+template <typename T>
+inline double sqr(T v)
+{
+    double dv = static_cast<double>(v);
+    return dv * dv;
+}
+
+template <typename T>
+double signalEnergy(T *start, T *end, unsigned stride)
+{
+    double accum = 0;
+
+    for (T *p = start; p < end; p += stride) {
+        accum += sqr(*p);
+    }
+    unsigned count = (end - start + stride - 1) / stride;
+    return accum / count;
+}
+
+// TI = resampler input type, int16_t or float
+// TO = resampler output type, int32_t or float
+template <typename TI, typename TO>
+void testStopbandDownconversion(size_t channels,
+        unsigned inputFreq, unsigned outputFreq,
+        unsigned passband, unsigned stopband,
+        enum android::AudioResampler::src_quality quality)
+{
+    // create the provider
+    std::vector<int> inputIncr;
+    SignalProvider provider;
+    provider.setChirp<TI>(channels,
+            0., inputFreq/2., inputFreq, inputFreq/2000.);
+    provider.setIncr(inputIncr);
+
+    // calculate the output size
+    size_t outputFrames = ((int64_t) provider.getNumFrames() * outputFreq) / inputFreq;
+    size_t outputFrameSize = (channels == 1 ? 2 : channels) * sizeof(TO);
+    size_t outputSize = outputFrameSize * outputFrames;
+    outputSize &= ~7;
+
+    // create the resampler
+    android::AudioResampler* resampler;
+
+    resampler = android::AudioResampler::create(
+            is_same<TI, int16_t>::value ? AUDIO_FORMAT_PCM_16_BIT : AUDIO_FORMAT_PCM_FLOAT,
+            channels, outputFreq, quality);
+    resampler->setSampleRate(inputFreq);
+    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
+            android::AudioResampler::UNITY_GAIN_FLOAT);
+
+    // set up the reference run
+    std::vector<size_t> refIncr;
+    refIncr.push_back(outputFrames);
+    void* reference = calloc(outputFrames, outputFrameSize);
+    resample(channels, reference, outputFrames, refIncr, &provider, resampler);
+
+    TO *out = reinterpret_cast<TO *>(reference);
+
+    // check signal energy in passband
+    const unsigned passbandFrame = passband * outputFreq / 1000.;
+    const unsigned stopbandFrame = stopband * outputFreq / 1000.;
+
+    // check each channel separately
+    if (channels == 1) channels = 2; // workaround (mono duplicates output channel)
+
+    for (size_t i = 0; i < channels; ++i) {
+        double passbandEnergy = signalEnergy(out, out + passbandFrame * channels, channels);
+        double stopbandEnergy = signalEnergy(out + stopbandFrame * channels,
+                out + outputFrames * channels, channels);
+        double dbAtten = -10. * log10(stopbandEnergy / passbandEnergy);
+        ASSERT_GT(dbAtten, 60.);
+
+#if 0
+        // internal verification
+        printf("if:%d  of:%d  pbf:%d  sbf:%d  sbe: %f  pbe: %f  db: %.2f\n",
+                provider.getNumFrames(), outputFrames,
+                passbandFrame, stopbandFrame, stopbandEnergy, passbandEnergy, dbAtten);
+        for (size_t i = 0; i < 10; ++i) {
+            std::cout << out[i+passbandFrame*channels] << std::endl;
+        }
+        for (size_t i = 0; i < 10; ++i) {
+            std::cout << out[i+stopbandFrame*channels] << std::endl;
+        }
+#endif
+    }
+
+    free(reference);
+    delete resampler;
+}
+
+/* Buffer increment test
+ *
+ * We compare a reference output, where we consume and process the entire
+ * buffer at a time, and a test output, where we provide small chunks of input
+ * data and process small chunks of output (which may not be equivalent in size).
+ *
+ * Two subtests - fixed phase (3:2 down) and interpolated phase (147:320 up)
+ */
+TEST(audioflinger_resampler, bufferincrement_fixedphase) {
+    // all of these work
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            android::AudioResampler::LOW_QUALITY,
+            android::AudioResampler::MED_QUALITY,
+            android::AudioResampler::HIGH_QUALITY,
+            android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testBufferIncrement(2, false, 48000, 32000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, bufferincrement_interpolatedphase) {
+    // all of these work except low quality
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+//           android::AudioResampler::LOW_QUALITY,
+            android::AudioResampler::MED_QUALITY,
+            android::AudioResampler::HIGH_QUALITY,
+            android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testBufferIncrement(2, false, 22050, 48000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, bufferincrement_fixedphase_multi) {
+    // only dynamic quality
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testBufferIncrement(4, false, 48000, 32000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, bufferincrement_interpolatedphase_multi_float) {
+    // only dynamic quality
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testBufferIncrement(8, true, 22050, 48000, kQualityArray[i]);
+    }
+}
+
+/* Simple aliasing test
+ *
+ * This checks stopband response of the chirp signal to make sure frequencies
+ * are properly suppressed.  It uses downsampling because the stopband can be
+ * clearly isolated by input frequencies exceeding the output sample rate (nyquist).
+ */
+TEST(audioflinger_resampler, stopbandresponse_integer) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                2, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                2, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, stopbandresponse_integer_mono) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                1, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                1, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, stopbandresponse_integer_multichannel) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                8, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                8, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, stopbandresponse_float) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                2, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                2, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, stopbandresponse_float_mono) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                1, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                1, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, stopbandresponse_float_multichannel) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                8, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                8, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
diff --git a/media/libaudioprocessing/tests/run_all_unit_tests.sh b/media/libaudioprocessing/tests/run_all_unit_tests.sh
new file mode 100755
index 0000000..15a94c2
--- /dev/null
+++ b/media/libaudioprocessing/tests/run_all_unit_tests.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+if [ -z "$ANDROID_BUILD_TOP" ]; then
+    echo "Android build environment not set"
+    exit -1
+fi
+
+echo "waiting for device"
+adb root && adb wait-for-device remount
+
+adb shell /data/nativetest/resampler_tests/resampler_tests
+adb shell /data/nativetest64/resampler_tests/resampler_tests
diff --git a/media/libaudioprocessing/tests/test-mixer.cpp b/media/libaudioprocessing/tests/test-mixer.cpp
new file mode 100644
index 0000000..75dbf91
--- /dev/null
+++ b/media/libaudioprocessing/tests/test-mixer.cpp
@@ -0,0 +1,328 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <inttypes.h>
+#include <math.h>
+#include <vector>
+#include <audio_utils/primitives.h>
+#include <audio_utils/sndfile.h>
+#include <media/AudioBufferProvider.h>
+#include <media/AudioMixer.h>
+#include "test_utils.h"
+
+/* Testing is typically through creation of an output WAV file from several
+ * source inputs, to be later analyzed by an audio program such as Audacity.
+ *
+ * Sine or chirp functions are typically more useful as input to the mixer
+ * as they show up as straight lines on a spectrogram if successfully mixed.
+ *
+ * A sample shell script is provided: mixer_to_wave_tests.sh
+ */
+
+using namespace android;
+
+static void usage(const char* name) {
+    fprintf(stderr, "Usage: %s [-f] [-m] [-c channels]"
+                    " [-s sample-rate] [-o <output-file>] [-a <aux-buffer-file>] [-P csv]"
+                    " (<input-file> | <command>)+\n", name);
+    fprintf(stderr, "    -f    enable floating point input track by default\n");
+    fprintf(stderr, "    -m    enable floating point mixer output\n");
+    fprintf(stderr, "    -c    number of mixer output channels\n");
+    fprintf(stderr, "    -s    mixer sample-rate\n");
+    fprintf(stderr, "    -o    <output-file> WAV file, pcm16 (or float if -m specified)\n");
+    fprintf(stderr, "    -a    <aux-buffer-file>\n");
+    fprintf(stderr, "    -P    # frames provided per call to resample() in CSV format\n");
+    fprintf(stderr, "    <input-file> is a WAV file\n");
+    fprintf(stderr, "    <command> can be 'sine:[(i|f),]<channels>,<frequency>,<samplerate>'\n");
+    fprintf(stderr, "                     'chirp:[(i|f),]<channels>,<samplerate>'\n");
+}
+
+static int writeFile(const char *filename, const void *buffer,
+        uint32_t sampleRate, uint32_t channels, size_t frames, bool isBufferFloat) {
+    if (filename == NULL) {
+        return 0; // ok to pass in NULL filename
+    }
+    // write output to file.
+    SF_INFO info;
+    info.frames = 0;
+    info.samplerate = sampleRate;
+    info.channels = channels;
+    info.format = SF_FORMAT_WAV | (isBufferFloat ? SF_FORMAT_FLOAT : SF_FORMAT_PCM_16);
+    printf("saving file:%s  channels:%u  samplerate:%u  frames:%zu\n",
+            filename, info.channels, info.samplerate, frames);
+    SNDFILE *sf = sf_open(filename, SFM_WRITE, &info);
+    if (sf == NULL) {
+        perror(filename);
+        return EXIT_FAILURE;
+    }
+    if (isBufferFloat) {
+        (void) sf_writef_float(sf, (float*)buffer, frames);
+    } else {
+        (void) sf_writef_short(sf, (short*)buffer, frames);
+    }
+    sf_close(sf);
+    return EXIT_SUCCESS;
+}
+
+const char *parseFormat(const char *s, bool *useFloat) {
+    if (!strncmp(s, "f,", 2)) {
+        *useFloat = true;
+        return s + 2;
+    }
+    if (!strncmp(s, "i,", 2)) {
+        *useFloat = false;
+        return s + 2;
+    }
+    return s;
+}
+
+int main(int argc, char* argv[]) {
+    const char* const progname = argv[0];
+    bool useInputFloat = false;
+    bool useMixerFloat = false;
+    bool useRamp = true;
+    uint32_t outputSampleRate = 48000;
+    uint32_t outputChannels = 2; // stereo for now
+    std::vector<int> Pvalues;
+    const char* outputFilename = NULL;
+    const char* auxFilename = NULL;
+    std::vector<int32_t> names;
+    std::vector<SignalProvider> providers;
+    std::vector<audio_format_t> formats;
+
+    for (int ch; (ch = getopt(argc, argv, "fmc:s:o:a:P:")) != -1;) {
+        switch (ch) {
+        case 'f':
+            useInputFloat = true;
+            break;
+        case 'm':
+            useMixerFloat = true;
+            break;
+        case 'c':
+            outputChannels = atoi(optarg);
+            break;
+        case 's':
+            outputSampleRate = atoi(optarg);
+            break;
+        case 'o':
+            outputFilename = optarg;
+            break;
+        case 'a':
+            auxFilename = optarg;
+            break;
+        case 'P':
+            if (parseCSV(optarg, Pvalues) < 0) {
+                fprintf(stderr, "incorrect syntax for -P option\n");
+                return EXIT_FAILURE;
+            }
+            break;
+        case '?':
+        default:
+            usage(progname);
+            return EXIT_FAILURE;
+        }
+    }
+    argc -= optind;
+    argv += optind;
+
+    if (argc == 0) {
+        usage(progname);
+        return EXIT_FAILURE;
+    }
+    if ((unsigned)argc > AudioMixer::MAX_NUM_TRACKS) {
+        fprintf(stderr, "too many tracks: %d > %u", argc, AudioMixer::MAX_NUM_TRACKS);
+        return EXIT_FAILURE;
+    }
+
+    size_t outputFrames = 0;
+
+    // create providers for each track
+    names.resize(argc);
+    providers.resize(argc);
+    formats.resize(argc);
+    for (int i = 0; i < argc; ++i) {
+        static const char chirp[] = "chirp:";
+        static const char sine[] = "sine:";
+        static const double kSeconds = 1;
+        bool useFloat = useInputFloat;
+
+        if (!strncmp(argv[i], chirp, strlen(chirp))) {
+            std::vector<int> v;
+            const char *s = parseFormat(argv[i] + strlen(chirp), &useFloat);
+
+            parseCSV(s, v);
+            if (v.size() == 2) {
+                printf("creating chirp(%d %d)\n", v[0], v[1]);
+                if (useFloat) {
+                    providers[i].setChirp<float>(v[0], 0, v[1]/2, v[1], kSeconds);
+                    formats[i] = AUDIO_FORMAT_PCM_FLOAT;
+                } else {
+                    providers[i].setChirp<int16_t>(v[0], 0, v[1]/2, v[1], kSeconds);
+                    formats[i] = AUDIO_FORMAT_PCM_16_BIT;
+                }
+                providers[i].setIncr(Pvalues);
+            } else {
+                fprintf(stderr, "malformed input '%s'\n", argv[i]);
+            }
+        } else if (!strncmp(argv[i], sine, strlen(sine))) {
+            std::vector<int> v;
+            const char *s = parseFormat(argv[i] + strlen(sine), &useFloat);
+
+            parseCSV(s, v);
+            if (v.size() == 3) {
+                printf("creating sine(%d %d %d)\n", v[0], v[1], v[2]);
+                if (useFloat) {
+                    providers[i].setSine<float>(v[0], v[1], v[2], kSeconds);
+                    formats[i] = AUDIO_FORMAT_PCM_FLOAT;
+                } else {
+                    providers[i].setSine<int16_t>(v[0], v[1], v[2], kSeconds);
+                    formats[i] = AUDIO_FORMAT_PCM_16_BIT;
+                }
+                providers[i].setIncr(Pvalues);
+            } else {
+                fprintf(stderr, "malformed input '%s'\n", argv[i]);
+            }
+        } else {
+            printf("creating filename(%s)\n", argv[i]);
+            if (useInputFloat) {
+                providers[i].setFile<float>(argv[i]);
+                formats[i] = AUDIO_FORMAT_PCM_FLOAT;
+            } else {
+                providers[i].setFile<short>(argv[i]);
+                formats[i] = AUDIO_FORMAT_PCM_16_BIT;
+            }
+            providers[i].setIncr(Pvalues);
+        }
+        // calculate the number of output frames
+        size_t nframes = (int64_t) providers[i].getNumFrames() * outputSampleRate
+                / providers[i].getSampleRate();
+        if (i == 0 || outputFrames > nframes) { // choose minimum for outputFrames
+            outputFrames = nframes;
+        }
+    }
+
+    // create the output buffer.
+    const size_t outputFrameSize = outputChannels
+            * (useMixerFloat ? sizeof(float) : sizeof(int16_t));
+    const size_t outputSize = outputFrames * outputFrameSize;
+    const audio_channel_mask_t outputChannelMask =
+            audio_channel_out_mask_from_count(outputChannels);
+    void *outputAddr = NULL;
+    (void) posix_memalign(&outputAddr, 32, outputSize);
+    memset(outputAddr, 0, outputSize);
+
+    // create the aux buffer, if needed.
+    const size_t auxFrameSize = sizeof(int32_t); // Q4.27 always
+    const size_t auxSize = outputFrames * auxFrameSize;
+    void *auxAddr = NULL;
+    if (auxFilename) {
+        (void) posix_memalign(&auxAddr, 32, auxSize);
+        memset(auxAddr, 0, auxSize);
+    }
+
+    // create the mixer.
+    const size_t mixerFrameCount = 320; // typical numbers may range from 240 or 960
+    AudioMixer *mixer = new AudioMixer(mixerFrameCount, outputSampleRate);
+    audio_format_t mixerFormat = useMixerFloat
+            ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
+    float f = AudioMixer::UNITY_GAIN_FLOAT / providers.size(); // normalize volume by # tracks
+    static float f0; // zero
+
+    // set up the tracks.
+    for (size_t i = 0; i < providers.size(); ++i) {
+        //printf("track %d out of %d\n", i, providers.size());
+        uint32_t channelMask = audio_channel_out_mask_from_count(providers[i].getNumChannels());
+        int32_t name = mixer->getTrackName(channelMask,
+                formats[i], AUDIO_SESSION_OUTPUT_MIX);
+        ALOG_ASSERT(name >= 0);
+        names[i] = name;
+        mixer->setBufferProvider(name, &providers[i]);
+        mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::MAIN_BUFFER,
+                (void *)outputAddr);
+        mixer->setParameter(
+                name,
+                AudioMixer::TRACK,
+                AudioMixer::MIXER_FORMAT,
+                (void *)(uintptr_t)mixerFormat);
+        mixer->setParameter(
+                name,
+                AudioMixer::TRACK,
+                AudioMixer::FORMAT,
+                (void *)(uintptr_t)formats[i]);
+        mixer->setParameter(
+                name,
+                AudioMixer::TRACK,
+                AudioMixer::MIXER_CHANNEL_MASK,
+                (void *)(uintptr_t)outputChannelMask);
+        mixer->setParameter(
+                name,
+                AudioMixer::TRACK,
+                AudioMixer::CHANNEL_MASK,
+                (void *)(uintptr_t)channelMask);
+        mixer->setParameter(
+                name,
+                AudioMixer::RESAMPLE,
+                AudioMixer::SAMPLE_RATE,
+                (void *)(uintptr_t)providers[i].getSampleRate());
+        if (useRamp) {
+            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f0);
+            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f0);
+            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME0, &f);
+            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME1, &f);
+        } else {
+            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f);
+            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f);
+        }
+        if (auxFilename) {
+            mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::AUX_BUFFER,
+                    (void *) auxAddr);
+            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::AUXLEVEL, &f0);
+            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::AUXLEVEL, &f);
+        }
+        mixer->enable(name);
+    }
+
+    // pump the mixer to process data.
+    size_t i;
+    for (i = 0; i < outputFrames - mixerFrameCount; i += mixerFrameCount) {
+        for (size_t j = 0; j < names.size(); ++j) {
+            mixer->setParameter(names[j], AudioMixer::TRACK, AudioMixer::MAIN_BUFFER,
+                    (char *) outputAddr + i * outputFrameSize);
+            if (auxFilename) {
+                mixer->setParameter(names[j], AudioMixer::TRACK, AudioMixer::AUX_BUFFER,
+                        (char *) auxAddr + i * auxFrameSize);
+            }
+        }
+        mixer->process();
+    }
+    outputFrames = i; // reset output frames to the data actually produced.
+
+    // write to files
+    writeFile(outputFilename, outputAddr,
+            outputSampleRate, outputChannels, outputFrames, useMixerFloat);
+    if (auxFilename) {
+        // Aux buffer is always in q4_27 format for now.
+        // memcpy_to_i16_from_q4_27(), but with stereo frame count (not sample count)
+        ditherAndClamp((int32_t*)auxAddr, (int32_t*)auxAddr, outputFrames >> 1);
+        writeFile(auxFilename, auxAddr, outputSampleRate, 1, outputFrames, false);
+    }
+
+    delete mixer;
+    free(outputAddr);
+    free(auxAddr);
+    return EXIT_SUCCESS;
+}
diff --git a/media/libaudioprocessing/tests/test-resampler.cpp b/media/libaudioprocessing/tests/test-resampler.cpp
new file mode 100644
index 0000000..fbc9326
--- /dev/null
+++ b/media/libaudioprocessing/tests/test-resampler.cpp
@@ -0,0 +1,515 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <time.h>
+#include <math.h>
+#include <audio_utils/primitives.h>
+#include <audio_utils/sndfile.h>
+#include <utils/Vector.h>
+#include <media/AudioBufferProvider.h>
+#include <media/AudioResampler.h>
+
+using namespace android;
+
+static bool gVerbose = false;
+
+static int usage(const char* name) {
+    fprintf(stderr,"Usage: %s [-p] [-f] [-F] [-v] [-c channels]"
+                   " [-q {dq|lq|mq|hq|vhq|dlq|dmq|dhq}]"
+                   " [-i input-sample-rate] [-o output-sample-rate]"
+                   " [-O csv] [-P csv] [<input-file>]"
+                   " <output-file>\n", name);
+    fprintf(stderr,"    -p    enable profiling\n");
+    fprintf(stderr,"    -f    enable filter profiling\n");
+    fprintf(stderr,"    -F    enable floating point -q {dlq|dmq|dhq} only");
+    fprintf(stderr,"    -v    verbose : log buffer provider calls\n");
+    fprintf(stderr,"    -c    # channels (1-2 for lq|mq|hq; 1-8 for dlq|dmq|dhq)\n");
+    fprintf(stderr,"    -q    resampler quality\n");
+    fprintf(stderr,"              dq  : default quality\n");
+    fprintf(stderr,"              lq  : low quality\n");
+    fprintf(stderr,"              mq  : medium quality\n");
+    fprintf(stderr,"              hq  : high quality\n");
+    fprintf(stderr,"              vhq : very high quality\n");
+    fprintf(stderr,"              dlq : dynamic low quality\n");
+    fprintf(stderr,"              dmq : dynamic medium quality\n");
+    fprintf(stderr,"              dhq : dynamic high quality\n");
+    fprintf(stderr,"    -i    input file sample rate (ignored if input file is specified)\n");
+    fprintf(stderr,"    -o    output file sample rate\n");
+    fprintf(stderr,"    -O    # frames output per call to resample() in CSV format\n");
+    fprintf(stderr,"    -P    # frames provided per call to resample() in CSV format\n");
+    return -1;
+}
+
+// Convert a list of integers in CSV format to a Vector of those values.
+// Returns the number of elements in the list, or -1 on error.
+int parseCSV(const char *string, Vector<int>& values)
+{
+    // pass 1: count the number of values and do syntax check
+    size_t numValues = 0;
+    bool hadDigit = false;
+    for (const char *p = string; ; ) {
+        switch (*p++) {
+        case '0': case '1': case '2': case '3': case '4':
+        case '5': case '6': case '7': case '8': case '9':
+            hadDigit = true;
+            break;
+        case '\0':
+            if (hadDigit) {
+                // pass 2: allocate and initialize vector of values
+                values.resize(++numValues);
+                values.editItemAt(0) = atoi(p = optarg);
+                for (size_t i = 1; i < numValues; ) {
+                    if (*p++ == ',') {
+                        values.editItemAt(i++) = atoi(p);
+                    }
+                }
+                return numValues;
+            }
+            // fall through
+        case ',':
+            if (hadDigit) {
+                hadDigit = false;
+                numValues++;
+                break;
+            }
+            // fall through
+        default:
+            return -1;
+        }
+    }
+}
+
+int main(int argc, char* argv[]) {
+    const char* const progname = argv[0];
+    bool profileResample = false;
+    bool profileFilter = false;
+    bool useFloat = false;
+    int channels = 1;
+    int input_freq = 0;
+    int output_freq = 0;
+    AudioResampler::src_quality quality = AudioResampler::DEFAULT_QUALITY;
+    Vector<int> Ovalues;
+    Vector<int> Pvalues;
+
+    int ch;
+    while ((ch = getopt(argc, argv, "pfFvc:q:i:o:O:P:")) != -1) {
+        switch (ch) {
+        case 'p':
+            profileResample = true;
+            break;
+        case 'f':
+            profileFilter = true;
+            break;
+        case 'F':
+            useFloat = true;
+            break;
+        case 'v':
+            gVerbose = true;
+            break;
+        case 'c':
+            channels = atoi(optarg);
+            break;
+        case 'q':
+            if (!strcmp(optarg, "dq"))
+                quality = AudioResampler::DEFAULT_QUALITY;
+            else if (!strcmp(optarg, "lq"))
+                quality = AudioResampler::LOW_QUALITY;
+            else if (!strcmp(optarg, "mq"))
+                quality = AudioResampler::MED_QUALITY;
+            else if (!strcmp(optarg, "hq"))
+                quality = AudioResampler::HIGH_QUALITY;
+            else if (!strcmp(optarg, "vhq"))
+                quality = AudioResampler::VERY_HIGH_QUALITY;
+            else if (!strcmp(optarg, "dlq"))
+                quality = AudioResampler::DYN_LOW_QUALITY;
+            else if (!strcmp(optarg, "dmq"))
+                quality = AudioResampler::DYN_MED_QUALITY;
+            else if (!strcmp(optarg, "dhq"))
+                quality = AudioResampler::DYN_HIGH_QUALITY;
+            else {
+                usage(progname);
+                return -1;
+            }
+            break;
+        case 'i':
+            input_freq = atoi(optarg);
+            break;
+        case 'o':
+            output_freq = atoi(optarg);
+            break;
+        case 'O':
+            if (parseCSV(optarg, Ovalues) < 0) {
+                fprintf(stderr, "incorrect syntax for -O option\n");
+                return -1;
+            }
+            break;
+        case 'P':
+            if (parseCSV(optarg, Pvalues) < 0) {
+                fprintf(stderr, "incorrect syntax for -P option\n");
+                return -1;
+            }
+            break;
+        case '?':
+        default:
+            usage(progname);
+            return -1;
+        }
+    }
+
+    if (channels < 1
+            || channels > (quality < AudioResampler::DYN_LOW_QUALITY ? 2 : 8)) {
+        fprintf(stderr, "invalid number of audio channels %d\n", channels);
+        return -1;
+    }
+    if (useFloat && quality < AudioResampler::DYN_LOW_QUALITY) {
+        fprintf(stderr, "float processing is only possible for dynamic resamplers\n");
+        return -1;
+    }
+
+    argc -= optind;
+    argv += optind;
+
+    const char* file_in = NULL;
+    const char* file_out = NULL;
+    if (argc == 1) {
+        file_out = argv[0];
+    } else if (argc == 2) {
+        file_in = argv[0];
+        file_out = argv[1];
+    } else {
+        usage(progname);
+        return -1;
+    }
+
+    // ----------------------------------------------------------
+
+    size_t input_size;
+    void* input_vaddr;
+    if (argc == 2) {
+        SF_INFO info;
+        info.format = 0;
+        SNDFILE *sf = sf_open(file_in, SFM_READ, &info);
+        if (sf == NULL) {
+            perror(file_in);
+            return EXIT_FAILURE;
+        }
+        input_size = info.frames * info.channels * sizeof(short);
+        input_vaddr = malloc(input_size);
+        (void) sf_readf_short(sf, (short *) input_vaddr, info.frames);
+        sf_close(sf);
+        channels = info.channels;
+        input_freq = info.samplerate;
+    } else {
+        // data for testing is exactly (input sampling rate/1000)/2 seconds
+        // so 44.1khz input is 22.05 seconds
+        double k = 1000; // Hz / s
+        double time = (input_freq / 2) / k;
+        size_t input_frames = size_t(input_freq * time);
+        input_size = channels * sizeof(int16_t) * input_frames;
+        input_vaddr = malloc(input_size);
+        int16_t* in = (int16_t*)input_vaddr;
+        for (size_t i=0 ; i<input_frames ; i++) {
+            double t = double(i) / input_freq;
+            double y = sin(M_PI * k * t * t);
+            int16_t yi = floor(y * 32767.0 + 0.5);
+            for (int j = 0; j < channels; j++) {
+                in[i*channels + j] = yi / (1 + j);
+            }
+        }
+    }
+    size_t input_framesize = channels * sizeof(int16_t);
+    size_t input_frames = input_size / input_framesize;
+
+    // For float processing, convert input int16_t to float array
+    if (useFloat) {
+        void *new_vaddr;
+
+        input_framesize = channels * sizeof(float);
+        input_size = input_frames * input_framesize;
+        new_vaddr = malloc(input_size);
+        memcpy_to_float_from_i16(reinterpret_cast<float*>(new_vaddr),
+                reinterpret_cast<int16_t*>(input_vaddr), input_frames * channels);
+        free(input_vaddr);
+        input_vaddr = new_vaddr;
+    }
+
+    // ----------------------------------------------------------
+
+    class Provider: public AudioBufferProvider {
+        const void*     mAddr;      // base address
+        const size_t    mNumFrames; // total frames
+        const size_t    mFrameSize; // size of each frame in bytes
+        size_t          mNextFrame; // index of next frame to provide
+        size_t          mUnrel;     // number of frames not yet released
+        const Vector<int> mPvalues; // number of frames provided per call
+        size_t          mNextPidx;  // index of next entry in mPvalues to use
+    public:
+        Provider(const void* addr, size_t frames, size_t frameSize, const Vector<int>& Pvalues)
+          : mAddr(addr),
+            mNumFrames(frames),
+            mFrameSize(frameSize),
+            mNextFrame(0), mUnrel(0), mPvalues(Pvalues), mNextPidx(0) {
+        }
+        virtual status_t getNextBuffer(Buffer* buffer) {
+            size_t requestedFrames = buffer->frameCount;
+            if (requestedFrames > mNumFrames - mNextFrame) {
+                buffer->frameCount = mNumFrames - mNextFrame;
+            }
+            if (!mPvalues.isEmpty()) {
+                size_t provided = mPvalues[mNextPidx++];
+                printf("mPvalue[%zu]=%zu not %zu\n", mNextPidx-1, provided, buffer->frameCount);
+                if (provided < buffer->frameCount) {
+                    buffer->frameCount = provided;
+                }
+                if (mNextPidx >= mPvalues.size()) {
+                    mNextPidx = 0;
+                }
+            }
+            if (gVerbose) {
+                printf("getNextBuffer() requested %zu frames out of %zu frames available,"
+                        " and returned %zu frames\n",
+                        requestedFrames, (size_t) (mNumFrames - mNextFrame), buffer->frameCount);
+            }
+            mUnrel = buffer->frameCount;
+            if (buffer->frameCount > 0) {
+                buffer->raw = (char *)mAddr + mFrameSize * mNextFrame;
+                return NO_ERROR;
+            } else {
+                buffer->raw = NULL;
+                return NOT_ENOUGH_DATA;
+            }
+        }
+        virtual void releaseBuffer(Buffer* buffer) {
+            if (buffer->frameCount > mUnrel) {
+                fprintf(stderr, "ERROR releaseBuffer() released %zu frames but only %zu available "
+                        "to release\n", buffer->frameCount, mUnrel);
+                mNextFrame += mUnrel;
+                mUnrel = 0;
+            } else {
+                if (gVerbose) {
+                    printf("releaseBuffer() released %zu frames out of %zu frames available "
+                            "to release\n", buffer->frameCount, mUnrel);
+                }
+                mNextFrame += buffer->frameCount;
+                mUnrel -= buffer->frameCount;
+            }
+            buffer->frameCount = 0;
+            buffer->raw = NULL;
+        }
+        void reset() {
+            mNextFrame = 0;
+        }
+    } provider(input_vaddr, input_frames, input_framesize, Pvalues);
+
+    if (gVerbose) {
+        printf("%zu input frames\n", input_frames);
+    }
+
+    audio_format_t format = useFloat ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
+    int output_channels = channels > 2 ? channels : 2; // output is at least stereo samples
+    size_t output_framesize = output_channels * (useFloat ? sizeof(float) : sizeof(int32_t));
+    size_t output_frames = ((int64_t) input_frames * output_freq) / input_freq;
+    size_t output_size = output_frames * output_framesize;
+
+    if (profileFilter) {
+        // Check how fast sample rate changes are that require filter changes.
+        // The delta sample rate changes must indicate a downsampling ratio,
+        // and must be larger than 10% changes.
+        //
+        // On fast devices, filters should be generated between 0.1ms - 1ms.
+        // (single threaded).
+        AudioResampler* resampler = AudioResampler::create(format, channels,
+                8000, quality);
+        int looplimit = 100;
+        timespec start, end;
+        clock_gettime(CLOCK_MONOTONIC, &start);
+        for (int i = 0; i < looplimit; ++i) {
+            resampler->setSampleRate(9000);
+            resampler->setSampleRate(12000);
+            resampler->setSampleRate(20000);
+            resampler->setSampleRate(30000);
+        }
+        clock_gettime(CLOCK_MONOTONIC, &end);
+        int64_t start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
+        int64_t end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
+        int64_t time = end_ns - start_ns;
+        printf("%.2f sample rate changes with filter calculation/sec\n",
+                looplimit * 4 / (time / 1e9));
+
+        // Check how fast sample rate changes are without filter changes.
+        // This should be very fast, probably 0.1us - 1us per sample rate
+        // change.
+        resampler->setSampleRate(1000);
+        looplimit = 1000;
+        clock_gettime(CLOCK_MONOTONIC, &start);
+        for (int i = 0; i < looplimit; ++i) {
+            resampler->setSampleRate(1000+i);
+        }
+        clock_gettime(CLOCK_MONOTONIC, &end);
+        start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
+        end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
+        time = end_ns - start_ns;
+        printf("%.2f sample rate changes without filter calculation/sec\n",
+                looplimit / (time / 1e9));
+        resampler->reset();
+        delete resampler;
+    }
+
+    void* output_vaddr = malloc(output_size);
+    AudioResampler* resampler = AudioResampler::create(format, channels,
+            output_freq, quality);
+
+    resampler->setSampleRate(input_freq);
+    resampler->setVolume(AudioResampler::UNITY_GAIN_FLOAT, AudioResampler::UNITY_GAIN_FLOAT);
+
+    if (profileResample) {
+        /*
+         * For profiling on mobile devices, upon experimentation
+         * it is better to run a few trials with a shorter loop limit,
+         * and take the minimum time.
+         *
+         * Long tests can cause CPU temperature to build up and thermal throttling
+         * to reduce CPU frequency.
+         *
+         * For frequency checks (index=0, or 1, etc.):
+         * "cat /sys/devices/system/cpu/cpu${index}/cpufreq/scaling_*_freq"
+         *
+         * For temperature checks (index=0, or 1, etc.):
+         * "cat /sys/class/thermal/thermal_zone${index}/temp"
+         *
+         * Another way to avoid thermal throttling is to fix the CPU frequency
+         * at a lower level which prevents excessive temperatures.
+         */
+        const int trials = 4;
+        const int looplimit = 4;
+        timespec start, end;
+        int64_t time = 0;
+
+        for (int n = 0; n < trials; ++n) {
+            clock_gettime(CLOCK_MONOTONIC, &start);
+            for (int i = 0; i < looplimit; ++i) {
+                resampler->resample((int*) output_vaddr, output_frames, &provider);
+                provider.reset(); //  during benchmarking reset only the provider
+            }
+            clock_gettime(CLOCK_MONOTONIC, &end);
+            int64_t start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
+            int64_t end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
+            int64_t diff_ns = end_ns - start_ns;
+            if (n == 0 || diff_ns < time) {
+                time = diff_ns;   // save the best out of our trials.
+            }
+        }
+        // Mfrms/s is "Millions of output frames per second".
+        printf("quality: %d  channels: %d  msec: %" PRId64 "  Mfrms/s: %.2lf\n",
+                quality, channels, time/1000000, output_frames * looplimit / (time / 1e9) / 1e6);
+        resampler->reset();
+
+        // TODO fix legacy bug: reset does not clear buffers.
+        // delete and recreate resampler here.
+        delete resampler;
+        resampler = AudioResampler::create(format, channels,
+                    output_freq, quality);
+        resampler->setSampleRate(input_freq);
+        resampler->setVolume(AudioResampler::UNITY_GAIN_FLOAT, AudioResampler::UNITY_GAIN_FLOAT);
+    }
+
+    memset(output_vaddr, 0, output_size);
+    if (gVerbose) {
+        printf("resample() %zu output frames\n", output_frames);
+    }
+    if (Ovalues.isEmpty()) {
+        Ovalues.push(output_frames);
+    }
+    for (size_t i = 0, j = 0; i < output_frames; ) {
+        size_t thisFrames = Ovalues[j++];
+        if (j >= Ovalues.size()) {
+            j = 0;
+        }
+        if (thisFrames == 0 || thisFrames > output_frames - i) {
+            thisFrames = output_frames - i;
+        }
+        resampler->resample((int*) output_vaddr + output_channels*i, thisFrames, &provider);
+        i += thisFrames;
+    }
+    if (gVerbose) {
+        printf("resample() complete\n");
+    }
+    resampler->reset();
+    if (gVerbose) {
+        printf("reset() complete\n");
+    }
+    delete resampler;
+    resampler = NULL;
+
+    // For float processing, convert output format from float to Q4.27,
+    // which is then converted to int16_t for final storage.
+    if (useFloat) {
+        memcpy_to_q4_27_from_float(reinterpret_cast<int32_t*>(output_vaddr),
+                reinterpret_cast<float*>(output_vaddr), output_frames * output_channels);
+    }
+
+    // mono takes left channel only (out of stereo output pair)
+    // stereo and multichannel preserve all channels.
+    int32_t* out = (int32_t*) output_vaddr;
+    int16_t* convert = (int16_t*) malloc(output_frames * channels * sizeof(int16_t));
+
+    const int volumeShift = 12; // shift requirement for Q4.27 to Q.15
+    // round to half towards zero and saturate at int16 (non-dithered)
+    const int roundVal = (1<<(volumeShift-1)) - 1; // volumePrecision > 0
+
+    for (size_t i = 0; i < output_frames; i++) {
+        for (int j = 0; j < channels; j++) {
+            int32_t s = out[i * output_channels + j] + roundVal; // add offset here
+            if (s < 0) {
+                s = (s + 1) >> volumeShift; // round to 0
+                if (s < -32768) {
+                    s = -32768;
+                }
+            } else {
+                s = s >> volumeShift;
+                if (s > 32767) {
+                    s = 32767;
+                }
+            }
+            convert[i * channels + j] = int16_t(s);
+        }
+    }
+
+    // write output to disk
+    SF_INFO info;
+    info.frames = 0;
+    info.samplerate = output_freq;
+    info.channels = channels;
+    info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
+    SNDFILE *sf = sf_open(file_out, SFM_WRITE, &info);
+    if (sf == NULL) {
+        perror(file_out);
+        return EXIT_FAILURE;
+    }
+    (void) sf_writef_short(sf, convert, output_frames);
+    sf_close(sf);
+
+    return EXIT_SUCCESS;
+}
diff --git a/media/libaudioprocessing/tests/test_utils.h b/media/libaudioprocessing/tests/test_utils.h
new file mode 100644
index 0000000..b61a929
--- /dev/null
+++ b/media/libaudioprocessing/tests/test_utils.h
@@ -0,0 +1,313 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_TEST_UTILS_H
+#define ANDROID_AUDIO_TEST_UTILS_H
+
+#ifndef LOG_TAG
+#define LOG_TAG "test_utils"
+#endif
+
+#include <log/log.h>
+
+#include <audio_utils/sndfile.h>
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+#endif
+
+template<typename T, typename U>
+struct is_same
+{
+    static const bool value = false;
+};
+
+template<typename T>
+struct is_same<T, T>  // partial specialization
+{
+    static const bool value = true;
+};
+
+template<typename T>
+static inline T convertValue(double val)
+{
+    if (is_same<T, int16_t>::value) {
+        return floor(val * 32767.0 + 0.5);
+    } else if (is_same<T, int32_t>::value) {
+        return floor(val * (1UL<<31) + 0.5);
+    }
+    return val; // assume float or double
+}
+
+// Convert a list of integers in CSV format to a Vector of those values.
+// Returns the number of elements in the list, or -1 on error.
+static inline int parseCSV(const char *string, std::vector<int>& values)
+{
+    // pass 1: count the number of values and do syntax check
+    size_t numValues = 0;
+    bool hadDigit = false;
+    for (const char *p = string; ; ) {
+        switch (*p++) {
+        case '0': case '1': case '2': case '3': case '4':
+        case '5': case '6': case '7': case '8': case '9':
+            hadDigit = true;
+            break;
+        case '\0':
+            if (hadDigit) {
+                // pass 2: allocate and initialize vector of values
+                values.resize(++numValues);
+                values[0] = atoi(p = string);
+                for (size_t i = 1; i < numValues; ) {
+                    if (*p++ == ',') {
+                        values[i++] = atoi(p);
+                    }
+                }
+                return numValues;
+            }
+            // fall through
+        case ',':
+            if (hadDigit) {
+                hadDigit = false;
+                numValues++;
+                break;
+            }
+            // fall through
+        default:
+            return -1;
+        }
+    }
+}
+
+/* Creates a type-independent audio buffer provider from
+ * a buffer base address, size, framesize, and input increment array.
+ *
+ * No allocation or deallocation of the provided buffer is done.
+ */
+class TestProvider : public android::AudioBufferProvider {
+public:
+    TestProvider(void* addr, size_t frames, size_t frameSize,
+            const std::vector<int>& inputIncr)
+    : mAddr(addr),
+      mNumFrames(frames),
+      mFrameSize(frameSize),
+      mNextFrame(0), mUnrel(0), mInputIncr(inputIncr), mNextIdx(0)
+    {
+    }
+
+    TestProvider()
+    : mAddr(NULL), mNumFrames(0), mFrameSize(0),
+      mNextFrame(0), mUnrel(0), mNextIdx(0)
+    {
+    }
+
+    void setIncr(const std::vector<int>& inputIncr) {
+        mInputIncr = inputIncr;
+        mNextIdx = 0;
+    }
+
+    virtual android::status_t getNextBuffer(Buffer* buffer)
+    {
+        size_t requestedFrames = buffer->frameCount;
+        if (requestedFrames > mNumFrames - mNextFrame) {
+            buffer->frameCount = mNumFrames - mNextFrame;
+        }
+        if (!mInputIncr.empty()) {
+            size_t provided = mInputIncr[mNextIdx++];
+            ALOGV("getNextBuffer() mValue[%zu]=%zu not %zu",
+                    mNextIdx-1, provided, buffer->frameCount);
+            if (provided < buffer->frameCount) {
+                buffer->frameCount = provided;
+            }
+            if (mNextIdx >= mInputIncr.size()) {
+                mNextIdx = 0;
+            }
+        }
+        ALOGV("getNextBuffer() requested %zu frames out of %zu frames available"
+                " and returned %zu frames",
+                requestedFrames, mNumFrames - mNextFrame, buffer->frameCount);
+        mUnrel = buffer->frameCount;
+        if (buffer->frameCount > 0) {
+            buffer->raw = (char *)mAddr + mFrameSize * mNextFrame;
+            return android::NO_ERROR;
+        } else {
+            buffer->raw = NULL;
+            return android::NOT_ENOUGH_DATA;
+        }
+    }
+
+    virtual void releaseBuffer(Buffer* buffer)
+    {
+        if (buffer->frameCount > mUnrel) {
+            ALOGE("releaseBuffer() released %zu frames but only %zu available "
+                    "to release", buffer->frameCount, mUnrel);
+            mNextFrame += mUnrel;
+            mUnrel = 0;
+        } else {
+
+            ALOGV("releaseBuffer() released %zu frames out of %zu frames available "
+                    "to release", buffer->frameCount, mUnrel);
+            mNextFrame += buffer->frameCount;
+            mUnrel -= buffer->frameCount;
+        }
+        buffer->frameCount = 0;
+        buffer->raw = NULL;
+    }
+
+    void reset()
+    {
+        mNextFrame = 0;
+    }
+
+    size_t getNumFrames()
+    {
+        return mNumFrames;
+    }
+
+
+protected:
+    void* mAddr;   // base address
+    size_t mNumFrames;   // total frames
+    int mFrameSize;      // frame size (# channels * bytes per sample)
+    size_t mNextFrame;   // index of next frame to provide
+    size_t mUnrel;       // number of frames not yet released
+    std::vector<int> mInputIncr; // number of frames provided per call
+    size_t mNextIdx;     // index of next entry in mInputIncr to use
+};
+
+/* Creates a buffer filled with a sine wave.
+ */
+template<typename T>
+static void createSine(void *vbuffer, size_t frames,
+        size_t channels, double sampleRate, double freq)
+{
+    double tscale = 1. / sampleRate;
+    T* buffer = reinterpret_cast<T*>(vbuffer);
+    for (size_t i = 0; i < frames; ++i) {
+        double t = i * tscale;
+        double y = sin(2. * M_PI * freq * t);
+        T yt = convertValue<T>(y);
+
+        for (size_t j = 0; j < channels; ++j) {
+            buffer[i*channels + j] = yt / T(j + 1);
+        }
+    }
+}
+
+/* Creates a buffer filled with a chirp signal (a sine wave sweep).
+ *
+ * When creating the Chirp, note that the frequency is the true sinusoidal
+ * frequency not the sampling rate.
+ *
+ * http://en.wikipedia.org/wiki/Chirp
+ */
+template<typename T>
+static void createChirp(void *vbuffer, size_t frames,
+        size_t channels, double sampleRate,  double minfreq, double maxfreq)
+{
+    double tscale = 1. / sampleRate;
+    T *buffer = reinterpret_cast<T*>(vbuffer);
+    // note the chirp constant k has a divide-by-two.
+    double k = (maxfreq - minfreq) / (2. * tscale * frames);
+    for (size_t i = 0; i < frames; ++i) {
+        double t = i * tscale;
+        double y = sin(2. * M_PI * (k * t + minfreq) * t);
+        T yt = convertValue<T>(y);
+
+        for (size_t j = 0; j < channels; ++j) {
+            buffer[i*channels + j] = yt / T(j + 1);
+        }
+    }
+}
+
+/* This derived class creates a buffer provider of datatype T,
+ * consisting of an input signal, e.g. from createChirp().
+ * The number of frames can be obtained from the base class
+ * TestProvider::getNumFrames().
+ */
+
+class SignalProvider : public TestProvider {
+public:
+    SignalProvider()
+    : mSampleRate(0),
+      mChannels(0)
+    {
+    }
+
+    virtual ~SignalProvider()
+    {
+        free(mAddr);
+        mAddr = NULL;
+    }
+
+    template <typename T>
+    void setChirp(size_t channels, double minfreq, double maxfreq, double sampleRate, double time)
+    {
+        createBufferByFrames<T>(channels, sampleRate, sampleRate*time);
+        createChirp<T>(mAddr, mNumFrames, mChannels, mSampleRate, minfreq, maxfreq);
+    }
+
+    template <typename T>
+    void setSine(size_t channels,
+            double freq, double sampleRate, double time)
+    {
+        createBufferByFrames<T>(channels, sampleRate, sampleRate*time);
+        createSine<T>(mAddr, mNumFrames,  mChannels, mSampleRate, freq);
+    }
+
+    template <typename T>
+    void setFile(const char *file_in)
+    {
+        SF_INFO info;
+        info.format = 0;
+        SNDFILE *sf = sf_open(file_in, SFM_READ, &info);
+        if (sf == NULL) {
+            perror(file_in);
+            return;
+        }
+        createBufferByFrames<T>(info.channels, info.samplerate, info.frames);
+        if (is_same<T, float>::value) {
+            (void) sf_readf_float(sf, (float *) mAddr, mNumFrames);
+        } else if (is_same<T, short>::value) {
+            (void) sf_readf_short(sf, (short *) mAddr, mNumFrames);
+        }
+        sf_close(sf);
+    }
+
+    template <typename T>
+    void createBufferByFrames(size_t channels, uint32_t sampleRate, size_t frames)
+    {
+        mNumFrames = frames;
+        mChannels = channels;
+        mFrameSize = mChannels * sizeof(T);
+        free(mAddr);
+        mAddr = malloc(mFrameSize * mNumFrames);
+        mSampleRate = sampleRate;
+    }
+
+    uint32_t getSampleRate() const {
+        return mSampleRate;
+    }
+
+    uint32_t getNumChannels() const {
+        return mChannels;
+    }
+
+protected:
+    uint32_t mSampleRate;
+    uint32_t mChannels;
+};
+
+#endif // ANDROID_AUDIO_TEST_UTILS_H
diff --git a/media/libcpustats/Android.mk b/media/libcpustats/Android.mk
index 57fe527..b2d73ee 100644
--- a/media/libcpustats/Android.mk
+++ b/media/libcpustats/Android.mk
@@ -8,6 +8,6 @@
 
 LOCAL_MODULE := libcpustats
 
-LOCAL_CFLAGS := -std=gnu++11 -Werror -Wall
+LOCAL_CFLAGS := -Werror -Wall
 
 include $(BUILD_STATIC_LIBRARY)
diff --git a/include/cpustats/CentralTendencyStatistics.h b/media/libcpustats/include/cpustats/CentralTendencyStatistics.h
similarity index 100%
rename from include/cpustats/CentralTendencyStatistics.h
rename to media/libcpustats/include/cpustats/CentralTendencyStatistics.h
diff --git a/include/cpustats/README.txt b/media/libcpustats/include/cpustats/README.txt
similarity index 100%
rename from include/cpustats/README.txt
rename to media/libcpustats/include/cpustats/README.txt
diff --git a/include/cpustats/ThreadCpuUsage.h b/media/libcpustats/include/cpustats/ThreadCpuUsage.h
similarity index 100%
rename from include/cpustats/ThreadCpuUsage.h
rename to media/libcpustats/include/cpustats/ThreadCpuUsage.h
diff --git a/media/libeffects/Android.bp b/media/libeffects/Android.bp
new file mode 100644
index 0000000..ccaa2b4
--- /dev/null
+++ b/media/libeffects/Android.bp
@@ -0,0 +1 @@
+subdirs = ["factory"]
diff --git a/media/libeffects/data/audio_effects.conf b/media/libeffects/data/audio_effects.conf
index c3c4b67..14a171b 100644
--- a/media/libeffects/data/audio_effects.conf
+++ b/media/libeffects/data/audio_effects.conf
@@ -10,33 +10,33 @@
 # the HW and SW effects
 
   #proxy {
-    #path /system/lib/soundfx/libeffectproxy.so
+    #path /vendor/lib/soundfx/libeffectproxy.so
   #}
 
 # This is the SW implementation library of the effect
   #libSW {
-    #path /system/lib/soundfx/libswwrapper.so
+    #path /vendor/lib/soundfx/libswwrapper.so
   #}
 
 # This is the HW implementation library for the effect
   #libHW {
-    #path /system/lib/soundfx/libhwwrapper.so
+    #path /vendor/lib/soundfx/libhwwrapper.so
   #}
 
   bundle {
-    path /system/lib/soundfx/libbundlewrapper.so
+    path /vendor/lib/soundfx/libbundlewrapper.so
   }
   reverb {
-    path /system/lib/soundfx/libreverbwrapper.so
+    path /vendor/lib/soundfx/libreverbwrapper.so
   }
   visualizer {
-    path /system/lib/soundfx/libvisualizer.so
+    path /vendor/lib/soundfx/libvisualizer.so
   }
   downmix {
-    path /system/lib/soundfx/libdownmix.so
+    path /vendor/lib/soundfx/libdownmix.so
   }
   loudness_enhancer {
-    path /system/lib/soundfx/libldnhncr.so
+    path /vendor/lib/soundfx/libldnhncr.so
   }
 }
 
@@ -44,7 +44,7 @@
 # audio HAL implements support for default software audio pre-processing effects
 #
 #  pre_processing {
-#    path /system/lib/soundfx/libaudiopreprocessing.so
+#    path /vendor/lib/soundfx/libaudiopreprocessing.so
 #  }
 
 # list of effects to load. Each effect element must contain a "library" and a "uuid" element.
diff --git a/media/libeffects/downmix/Android.mk b/media/libeffects/downmix/Android.mk
index e0ca8af..09793d1 100644
--- a/media/libeffects/downmix/Android.mk
+++ b/media/libeffects/downmix/Android.mk
@@ -3,6 +3,7 @@
 # Multichannel downmix effect library
 include $(CLEAR_VARS)
 
+LOCAL_VENDOR_MODULE := true
 LOCAL_SRC_FILES:= \
 	EffectDownmix.c
 
@@ -20,5 +21,6 @@
 	$(call include-path-for, audio-utils)
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libeffects/downmix/EffectDownmix.c b/media/libeffects/downmix/EffectDownmix.c
index cb4be75..7c685ec 100644
--- a/media/libeffects/downmix/EffectDownmix.c
+++ b/media/libeffects/downmix/EffectDownmix.c
@@ -16,11 +16,14 @@
 
 #define LOG_TAG "EffectDownmix"
 //#define LOG_NDEBUG 0
-#include <log/log.h>
+
 #include <inttypes.h>
+#include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
-#include <stdbool.h>
+
+#include <log/log.h>
+
 #include "EffectDownmix.h"
 
 // Do not submit with DOWNMIX_TEST_CHANNEL_INDEX defined, strictly for testing
@@ -389,7 +392,6 @@
 
     downmix_module_t *pDwmModule = (downmix_module_t *) self;
     downmix_object_t *pDownmixer;
-    int retsize;
 
     if (pDwmModule == NULL || pDwmModule->context.state == DOWNMIX_STATE_UNINITIALIZED) {
         return -EINVAL;
diff --git a/media/libeffects/factory/Android.bp b/media/libeffects/factory/Android.bp
new file mode 100644
index 0000000..16680bd
--- /dev/null
+++ b/media/libeffects/factory/Android.bp
@@ -0,0 +1,27 @@
+cc_library_headers {
+    name: "libeffects_headers",
+    vendor_available: true,
+    export_include_dirs: ["include"],
+    header_libs: ["libhardware_headers"],
+    export_header_lib_headers: ["libhardware_headers"],
+}
+
+// Effect factory library
+cc_library_shared {
+    name: "libeffects",
+    vendor: true,
+    srcs: ["EffectsFactory.c"],
+
+    shared_libs: [
+        "libcutils",
+        "liblog",
+        "libdl",
+    ],
+
+    include_dirs: ["system/media/audio_effects/include"],
+
+    local_include_dirs:["include/media"],
+
+    header_libs: ["libeffects_headers"],
+    export_header_lib_headers: ["libeffects_headers"],
+}
diff --git a/media/libeffects/factory/Android.mk b/media/libeffects/factory/Android.mk
deleted file mode 100644
index a932af7..0000000
--- a/media/libeffects/factory/Android.mk
+++ /dev/null
@@ -1,19 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-
-# Effect factory library
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:= \
-	EffectsFactory.c
-
-LOCAL_SHARED_LIBRARIES := \
-	libcutils liblog
-
-LOCAL_MODULE:= libeffects
-
-LOCAL_SHARED_LIBRARIES += libdl
-
-LOCAL_C_INCLUDES := \
-    $(call include-path-for, audio-effects)
-
-include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libeffects/factory/EffectsFactory.c b/media/libeffects/factory/EffectsFactory.c
index db7865a..37c0bb7 100644
--- a/media/libeffects/factory/EffectsFactory.c
+++ b/media/libeffects/factory/EffectsFactory.c
@@ -18,14 +18,18 @@
 //#define LOG_NDEBUG 0
 
 #include "EffectsFactory.h"
-#include <string.h>
-#include <stdlib.h>
-#include <dlfcn.h>
 
-#include <cutils/misc.h>
+#include <dlfcn.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
 #include <cutils/config_utils.h>
+#include <cutils/misc.h>
 #include <cutils/properties.h>
-#include <audio_effects/audio_effects_conf.h>
+#include <log/log.h>
+
+#include <system/audio_effects/audio_effects_conf.h>
 
 static list_elem_t *gEffectList; // list of effect_entry_t: all currently created effects
 static list_elem_t *gLibraryList; // list of lib_entry_t: all currently loaded libraries
@@ -44,6 +48,7 @@
 static int gCanQueryEffect; // indicates that call to EffectQueryEffect() is valid, i.e. that the list of effects
                           // was not modified since last call to EffectQueryNumberEffects()
 
+static list_elem_t *gLibraryFailedList;  //list of lib_failed_entry_t: libraries failed to load
 
 /////////////////////////////////////////////////
 //      Local functions prototypes
@@ -505,34 +510,81 @@
     return 0;
 }
 
+#ifdef __LP64__
+// audio_effects.conf always specifies 32 bit lib path: convert to 64 bit path if needed
+static const char *kLibraryPathRoot[] =
+        {"/odm/lib64/soundfx", "/vendor/lib64/soundfx", "/system/lib64/soundfx"};
+#else
+static const char *kLibraryPathRoot[] =
+        {"/odm/lib/soundfx", "/vendor/lib/soundfx", "/system/lib/soundfx"};
+#endif
+
+static const int kLibraryPathRootSize =
+        (sizeof(kLibraryPathRoot) / sizeof(kLibraryPathRoot[0]));
+
+// Checks if the library path passed as lib_path_in can be opened and if not
+// tries in standard effect library directories with just the library name and returns correct path
+// in lib_path_out
+int checkLibraryPath(const char *lib_path_in, char *lib_path_out) {
+    char *str;
+    const char *lib_name;
+    size_t len;
+
+    if (lib_path_in == NULL || lib_path_out == NULL) {
+        return -EINVAL;
+    }
+
+    strlcpy(lib_path_out, lib_path_in, PATH_MAX);
+
+    // Try exact path first
+    str = strstr(lib_path_out, "/lib/soundfx/");
+    if (str == NULL) {
+        return -EINVAL;
+    }
+
+    // Extract library name from input path
+    len = str - lib_path_out;
+    lib_name = lib_path_in + len + strlen("/lib/soundfx/");
+
+    // Then try with library name and standard path names in order of preference
+    for (int i = 0; i < kLibraryPathRootSize; i++) {
+        char path[PATH_MAX];
+
+        snprintf(path,
+                 PATH_MAX,
+                 "%s/%s",
+                 kLibraryPathRoot[i],
+                 lib_name);
+        if (F_OK == access(path, 0)) {
+            strcpy(lib_path_out, path);
+            ALOGW_IF(strncmp(lib_path_out, lib_path_in, PATH_MAX) != 0,
+                "checkLibraryPath() corrected library path %s to %s", lib_path_in, lib_path_out);
+            return 0;
+        }
+    }
+    return -EINVAL;
+}
+
+
+
 int loadLibrary(cnode *root, const char *name)
 {
     cnode *node;
-    void *hdl;
+    void *hdl = NULL;
     audio_effect_library_t *desc;
     list_elem_t *e;
     lib_entry_t *l;
     char path[PATH_MAX];
-    char *str;
-    size_t len;
 
     node = config_find(root, PATH_TAG);
     if (node == NULL) {
         return -EINVAL;
     }
-    // audio_effects.conf always specifies 32 bit lib path: convert to 64 bit path if needed
-    strlcpy(path, node->value, PATH_MAX);
-#ifdef __LP64__
-    str = strstr(path, "/lib/");
-    if (str == NULL)
-        return -EINVAL;
-    len = str - path;
-    path[len] = '\0';
-    strlcat(path, "/lib64/", PATH_MAX);
-    strlcat(path, node->value + len + strlen("/lib/"), PATH_MAX);
-#endif
-    if (strlen(path) >= PATH_MAX - 1)
-        return -EINVAL;
+
+    if (checkLibraryPath((const char *)node->value, path) != 0) {
+        ALOGW("loadLibrary() could not find library %s", path);
+        goto error;
+    }
 
     hdl = dlopen(path, RTLD_NOW);
     if (hdl == NULL) {
@@ -580,6 +632,17 @@
     if (hdl != NULL) {
         dlclose(hdl);
     }
+    //add entry for library errors in gLibraryFailedList
+    lib_failed_entry_t *fl = malloc(sizeof(lib_failed_entry_t));
+    fl->name = strndup(name, PATH_MAX);
+    fl->path = strndup(path, PATH_MAX);
+
+    list_elem_t *fe = malloc(sizeof(list_elem_t));
+    fe->object = fl;
+    fe->next = gLibraryFailedList;
+    gLibraryFailedList = fe;
+    ALOGV("getLibrary() linked error in library %p for path %s", fl, path);
+
     return -EINVAL;
 }
 
@@ -982,16 +1045,31 @@
 
 int EffectDumpEffects(int fd) {
     char s[512];
+
+    list_elem_t *fe = gLibraryFailedList;
+    lib_failed_entry_t *fl = NULL;
+
+    dprintf(fd, "Libraries NOT loaded:\n");
+
+    while (fe) {
+        fl = (lib_failed_entry_t *)fe->object;
+        dprintf(fd, " Library %s\n", fl->name);
+        dprintf(fd, "  path: %s\n", fl->path);
+        fe = fe->next;
+    }
+
     list_elem_t *e = gLibraryList;
     lib_entry_t *l = NULL;
     effect_descriptor_t *d = NULL;
     int found = 0;
     int ret = 0;
 
+    dprintf(fd, "Libraries loaded:\n");
     while (e) {
         l = (lib_entry_t *)e->object;
         list_elem_t *efx = l->effects;
-        dprintf(fd, "Library %s\n", l->name);
+        dprintf(fd, " Library %s\n", l->name);
+        dprintf(fd, "  path: %s\n", l->path);
         if (!efx) {
             dprintf(fd, "  (no effects)\n");
         }
diff --git a/media/libeffects/factory/EffectsFactory.h b/media/libeffects/factory/EffectsFactory.h
index 518800d..72e0931 100644
--- a/media/libeffects/factory/EffectsFactory.h
+++ b/media/libeffects/factory/EffectsFactory.h
@@ -17,9 +17,10 @@
 #ifndef ANDROID_EFFECTSFACTORY_H_
 #define ANDROID_EFFECTSFACTORY_H_
 
-#include <cutils/log.h>
-#include <pthread.h>
 #include <dirent.h>
+#include <pthread.h>
+
+#include <android/log.h>
 #include <hardware/audio_effect.h>
 
 #if __cplusplus
@@ -57,6 +58,11 @@
     lib_entry_t *lib;
 } effect_entry_t;
 
+typedef struct lib_failed_entry_s {
+    char *name;
+    char *path;
+} lib_failed_entry_t;
+
 // Structure used to store the lib entry
 // and the descriptor of the sub effects.
 // The library entry is to be stored in case of
@@ -68,6 +74,7 @@
 } sub_effect_entry_t;
 
 
+
 ////////////////////////////////////////////////////////////////////////////////
 //
 //    Function:       EffectGetSubEffects
diff --git a/include/media/EffectsFactoryApi.h b/media/libeffects/factory/include/media/EffectsFactoryApi.h
similarity index 100%
rename from include/media/EffectsFactoryApi.h
rename to media/libeffects/factory/include/media/EffectsFactoryApi.h
diff --git a/media/libeffects/loudness/Android.mk b/media/libeffects/loudness/Android.mk
index 55d0611..4b1c584 100644
--- a/media/libeffects/loudness/Android.mk
+++ b/media/libeffects/loudness/Android.mk
@@ -3,11 +3,13 @@
 # LoudnessEnhancer library
 include $(CLEAR_VARS)
 
+LOCAL_VENDOR_MODULE := true
 LOCAL_SRC_FILES:= \
 	EffectLoudnessEnhancer.cpp \
 	dsp/core/dynamic_range_compression.cpp
 
 LOCAL_CFLAGS+= -O2 -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
diff --git a/media/libeffects/loudness/EffectLoudnessEnhancer.cpp b/media/libeffects/loudness/EffectLoudnessEnhancer.cpp
index a5a1a3f..9d29cf1 100644
--- a/media/libeffects/loudness/EffectLoudnessEnhancer.cpp
+++ b/media/libeffects/loudness/EffectLoudnessEnhancer.cpp
@@ -16,13 +16,17 @@
 
 #define LOG_TAG "EffectLE"
 //#define LOG_NDEBUG 0
-#include <cutils/log.h>
+
 #include <assert.h>
+#include <math.h>
 #include <stdlib.h>
 #include <string.h>
-#include <new>
 #include <time.h>
-#include <math.h>
+
+#include <new>
+
+#include <log/log.h>
+
 #include <audio_effects/effect_loudnessenhancer.h>
 #include "dsp/core/dynamic_range_compression.h"
 
@@ -194,7 +198,6 @@
                          effect_handle_t *pHandle) {
     ALOGV("LELib_Create()");
     int ret;
-    int i;
 
     if (pHandle == NULL || uuid == NULL) {
         return -EINVAL;
@@ -311,7 +314,6 @@
         void *pCmdData, uint32_t *replySize, void *pReplyData) {
 
     LoudnessEnhancerContext * pContext = (LoudnessEnhancerContext *)self;
-    int retsize;
 
     if (pContext == NULL || pContext->mState == LOUDNESS_ENHANCER_STATE_UNINITIALIZED) {
         return -EINVAL;
diff --git a/media/libeffects/loudness/dsp/core/dynamic_range_compression-inl.h b/media/libeffects/loudness/dsp/core/dynamic_range_compression-inl.h
index da75ceb..7ea0593 100644
--- a/media/libeffects/loudness/dsp/core/dynamic_range_compression-inl.h
+++ b/media/libeffects/loudness/dsp/core/dynamic_range_compression-inl.h
@@ -16,13 +16,15 @@
 #ifndef LE_FX_ENGINE_DSP_CORE_DYNAMIC_RANGE_COMPRESSION_INL_H_
 #define LE_FX_ENGINE_DSP_CORE_DYNAMIC_RANGE_COMPRESSION_INL_H_
 
+#ifndef LOG_TAG
+#define LOG_TAG NULL
+#endif
 //#define LOG_NDEBUG 0
-#include <cutils/log.h>
 
+#include <log/log.h>
 
 namespace le_fx {
 
-
 inline void AdaptiveDynamicRangeCompression::set_knee_threshold(float decibel) {
   // Converts to 1og-base
   knee_threshold_in_decibel_ = decibel;
diff --git a/media/libeffects/loudness/dsp/core/dynamic_range_compression.cpp b/media/libeffects/loudness/dsp/core/dynamic_range_compression.cpp
index 7bd068e..578f58a 100644
--- a/media/libeffects/loudness/dsp/core/dynamic_range_compression.cpp
+++ b/media/libeffects/loudness/dsp/core/dynamic_range_compression.cpp
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+//#define LOG_NDEBUG 0
 
 #include <cmath>
 
@@ -22,9 +23,7 @@
 #include "dsp/core/interpolation.h"
 #include "dsp/core/dynamic_range_compression.h"
 
-//#define LOG_NDEBUG 0
-#include <cutils/log.h>
-
+#include <android/log.h>
 
 namespace le_fx {
 
diff --git a/media/libeffects/loudness/dsp/core/dynamic_range_compression.h b/media/libeffects/loudness/dsp/core/dynamic_range_compression.h
index 2821a78..04455c5 100644
--- a/media/libeffects/loudness/dsp/core/dynamic_range_compression.h
+++ b/media/libeffects/loudness/dsp/core/dynamic_range_compression.h
@@ -16,14 +16,14 @@
 #ifndef LE_FX_ENGINE_DSP_CORE_DYNAMIC_RANGE_COMPRESSION_H_
 #define LE_FX_ENGINE_DSP_CORE_DYNAMIC_RANGE_COMPRESSION_H_
 
+//#define LOG_NDEBUG 0
+
 #include "common/core/types.h"
 #include "common/core/math.h"
 #include "dsp/core/basic.h"
 #include "dsp/core/interpolation.h"
 
-//#define LOG_NDEBUG 0
-#include <cutils/log.h>
-
+#include <android/log.h>
 
 namespace le_fx {
 
diff --git a/media/libeffects/loudness/dsp/core/interpolator_base-inl.h b/media/libeffects/loudness/dsp/core/interpolator_base-inl.h
index bd08b65..fb87c79 100644
--- a/media/libeffects/loudness/dsp/core/interpolator_base-inl.h
+++ b/media/libeffects/loudness/dsp/core/interpolator_base-inl.h
@@ -16,13 +16,15 @@
 
 #ifndef LE_FX_ENGINE_DSP_CORE_INTERPOLATOR_BASE_INL_H_
 #define LE_FX_ENGINE_DSP_CORE_INTERPOLATOR_BASE_INL_H_
+#ifndef LOG_TAG
+#define LOG_TAG NULL
+#endif
+//#define LOG_NDEBUG 0
+
+#include <log/log.h>
 
 #include "dsp/core/basic.h"
 
-//#define LOG_NDEBUG 0
-#include <cutils/log.h>
-
-
 namespace le_fx {
 
 namespace sigmod {
@@ -112,7 +114,7 @@
     if (x_data_[n + 1] <= x_data_[n]) {
       ALOGE("InterpolatorBase::Initialize: xData are not ordered or "
               "contain equal values (X[%d] <= X[%d]) (%.5e <= %.5e)",
-              n + 1, n, x_data_[n + 1], x_data_[n]);
+            n + 1, n, x_data_[n + 1], x_data_[n]);
       status_ = false;
       return false;
     }
diff --git a/media/libeffects/lvm/lib/Android.mk b/media/libeffects/lvm/lib/Android.mk
index bb56c75..83e8288 100644
--- a/media/libeffects/lvm/lib/Android.mk
+++ b/media/libeffects/lvm/lib/Android.mk
@@ -6,6 +6,7 @@
 
 LOCAL_ARM_MODE := arm
 
+LOCAL_VENDOR_MODULE := true
 LOCAL_SRC_FILES:= \
     StereoWidening/src/LVCS_BypassMix.c \
     StereoWidening/src/LVCS_Control.c \
@@ -120,6 +121,7 @@
     $(LOCAL_PATH)/StereoWidening/lib
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -130,6 +132,7 @@
 
 LOCAL_ARM_MODE := arm
 
+LOCAL_VENDOR_MODULE := true
 LOCAL_SRC_FILES:= \
     Reverb/src/LVREV_ApplyNewSettings.c \
     Reverb/src/LVREV_ClearAudioBuffers.c \
@@ -177,4 +180,5 @@
     $(LOCAL_PATH)/Common/src
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 include $(BUILD_STATIC_LIBRARY)
diff --git a/media/libeffects/lvm/lib/Bass/src/LVDBE_Coeffs.h b/media/libeffects/lvm/lib/Bass/src/LVDBE_Coeffs.h
index 94a7869..b1ebadf 100644
--- a/media/libeffects/lvm/lib/Bass/src/LVDBE_Coeffs.h
+++ b/media/libeffects/lvm/lib/Bass/src/LVDBE_Coeffs.h
@@ -36,190 +36,190 @@
 
  /* Coefficients for centre frequency 55Hz */
 #define HPF_Fs8000_Fc55_A0                         1029556328         /* Floating point value 0.958849 */
-#define HPF_Fs8000_Fc55_A1                        -2059112655         /* Floating point value -1.917698 */
+#define HPF_Fs8000_Fc55_A1                       (-2059112655)        /* Floating point value -1.917698 */
 #define HPF_Fs8000_Fc55_A2                         1029556328         /* Floating point value 0.958849 */
-#define HPF_Fs8000_Fc55_B1                        -2081986375         /* Floating point value -1.939001 */
+#define HPF_Fs8000_Fc55_B1                       (-2081986375)        /* Floating point value -1.939001 */
 #define HPF_Fs8000_Fc55_B2                         1010183914         /* Floating point value 0.940807 */
 #define HPF_Fs11025_Fc55_A0                        1038210831         /* Floating point value 0.966909 */
-#define HPF_Fs11025_Fc55_A1                       -2076421662         /* Floating point value -1.933818 */
+#define HPF_Fs11025_Fc55_A1                      (-2076421662)        /* Floating point value -1.933818 */
 #define HPF_Fs11025_Fc55_A2                        1038210831         /* Floating point value 0.966909 */
-#define HPF_Fs11025_Fc55_B1                       -2099950710         /* Floating point value -1.955732 */
+#define HPF_Fs11025_Fc55_B1                      (-2099950710)        /* Floating point value -1.955732 */
 #define HPF_Fs11025_Fc55_B2                        1027238450         /* Floating point value 0.956690 */
 #define HPF_Fs12000_Fc55_A0                        1040079943         /* Floating point value 0.968650 */
-#define HPF_Fs12000_Fc55_A1                       -2080159885         /* Floating point value -1.937300 */
+#define HPF_Fs12000_Fc55_A1                      (-2080159885)        /* Floating point value -1.937300 */
 #define HPF_Fs12000_Fc55_A2                        1040079943         /* Floating point value 0.968650 */
-#define HPF_Fs12000_Fc55_B1                       -2103811702         /* Floating point value -1.959327 */
+#define HPF_Fs12000_Fc55_B1                      (-2103811702)        /* Floating point value -1.959327 */
 #define HPF_Fs12000_Fc55_B2                        1030940477         /* Floating point value 0.960138 */
 #define HPF_Fs16000_Fc55_A0                        1045381988         /* Floating point value 0.973588 */
-#define HPF_Fs16000_Fc55_A1                       -2090763976         /* Floating point value -1.947176 */
+#define HPF_Fs16000_Fc55_A1                      (-2090763976)        /* Floating point value -1.947176 */
 #define HPF_Fs16000_Fc55_A2                        1045381988         /* Floating point value 0.973588 */
-#define HPF_Fs16000_Fc55_B1                       -2114727793         /* Floating point value -1.969494 */
+#define HPF_Fs16000_Fc55_B1                      (-2114727793)        /* Floating point value -1.969494 */
 #define HPF_Fs16000_Fc55_B2                        1041478147         /* Floating point value 0.969952 */
 #define HPF_Fs22050_Fc55_A0                        1049766523         /* Floating point value 0.977671 */
-#define HPF_Fs22050_Fc55_A1                       -2099533046         /* Floating point value -1.955343 */
+#define HPF_Fs22050_Fc55_A1                      (-2099533046)        /* Floating point value -1.955343 */
 #define HPF_Fs22050_Fc55_A2                        1049766523         /* Floating point value 0.977671 */
-#define HPF_Fs22050_Fc55_B1                       -2123714381         /* Floating point value -1.977863 */
+#define HPF_Fs22050_Fc55_B1                      (-2123714381)        /* Floating point value -1.977863 */
 #define HPF_Fs22050_Fc55_B2                        1050232780         /* Floating point value 0.978105 */
 #define HPF_Fs24000_Fc55_A0                        1050711051         /* Floating point value 0.978551 */
-#define HPF_Fs24000_Fc55_A1                       -2101422103         /* Floating point value -1.957102 */
+#define HPF_Fs24000_Fc55_A1                      (-2101422103)        /* Floating point value -1.957102 */
 #define HPF_Fs24000_Fc55_A2                        1050711051         /* Floating point value 0.978551 */
-#define HPF_Fs24000_Fc55_B1                       -2125645498         /* Floating point value -1.979662 */
+#define HPF_Fs24000_Fc55_B1                      (-2125645498)        /* Floating point value -1.979662 */
 #define HPF_Fs24000_Fc55_B2                        1052123526         /* Floating point value 0.979866 */
 #define HPF_Fs32000_Fc55_A0                        1053385759         /* Floating point value 0.981042 */
-#define HPF_Fs32000_Fc55_A1                       -2106771519         /* Floating point value -1.962084 */
+#define HPF_Fs32000_Fc55_A1                      (-2106771519)        /* Floating point value -1.962084 */
 #define HPF_Fs32000_Fc55_A2                        1053385759         /* Floating point value 0.981042 */
-#define HPF_Fs32000_Fc55_B1                       -2131104794         /* Floating point value -1.984746 */
+#define HPF_Fs32000_Fc55_B1                      (-2131104794)        /* Floating point value -1.984746 */
 #define HPF_Fs32000_Fc55_B2                        1057486949         /* Floating point value 0.984861 */
 #define HPF_Fs44100_Fc55_A0                        1055592498         /* Floating point value 0.983097 */
-#define HPF_Fs44100_Fc55_A1                       -2111184995         /* Floating point value -1.966194 */
+#define HPF_Fs44100_Fc55_A1                      (-2111184995)        /* Floating point value -1.966194 */
 #define HPF_Fs44100_Fc55_A2                        1055592498         /* Floating point value 0.983097 */
-#define HPF_Fs44100_Fc55_B1                       -2135598658         /* Floating point value -1.988931 */
+#define HPF_Fs44100_Fc55_B1                      (-2135598658)        /* Floating point value -1.988931 */
 #define HPF_Fs44100_Fc55_B2                        1061922249         /* Floating point value 0.988992 */
 #define HPF_Fs48000_Fc55_A0                        1056067276         /* Floating point value 0.983539 */
-#define HPF_Fs48000_Fc55_A1                       -2112134551         /* Floating point value -1.967079 */
+#define HPF_Fs48000_Fc55_A1                      (-2112134551)        /* Floating point value -1.967079 */
 #define HPF_Fs48000_Fc55_A2                        1056067276         /* Floating point value 0.983539 */
-#define HPF_Fs48000_Fc55_B1                       -2136564296         /* Floating point value -1.989831 */
+#define HPF_Fs48000_Fc55_B1                      (-2136564296)        /* Floating point value -1.989831 */
 #define HPF_Fs48000_Fc55_B2                        1062877714         /* Floating point value 0.989882 */
 
  /* Coefficients for centre frequency 66Hz */
 #define HPF_Fs8000_Fc66_A0                         1023293271         /* Floating point value 0.953016 */
-#define HPF_Fs8000_Fc66_A1                        -2046586542         /* Floating point value -1.906032 */
+#define HPF_Fs8000_Fc66_A1                       (-2046586542)        /* Floating point value -1.906032 */
 #define HPF_Fs8000_Fc66_A2                         1023293271         /* Floating point value 0.953016 */
-#define HPF_Fs8000_Fc66_B1                        -2068896860         /* Floating point value -1.926810 */
+#define HPF_Fs8000_Fc66_B1                       (-2068896860)        /* Floating point value -1.926810 */
 #define HPF_Fs8000_Fc66_B2                          997931110         /* Floating point value 0.929396 */
 #define HPF_Fs11025_Fc66_A0                        1033624228         /* Floating point value 0.962638 */
-#define HPF_Fs11025_Fc66_A1                       -2067248455         /* Floating point value -1.925275 */
+#define HPF_Fs11025_Fc66_A1                      (-2067248455)        /* Floating point value -1.925275 */
 #define HPF_Fs11025_Fc66_A2                        1033624228         /* Floating point value 0.962638 */
-#define HPF_Fs11025_Fc66_B1                       -2090448000         /* Floating point value -1.946881 */
+#define HPF_Fs11025_Fc66_B1                      (-2090448000)        /* Floating point value -1.946881 */
 #define HPF_Fs11025_Fc66_B2                        1018182305         /* Floating point value 0.948256 */
 #define HPF_Fs12000_Fc66_A0                        1035857662         /* Floating point value 0.964718 */
-#define HPF_Fs12000_Fc66_A1                       -2071715325         /* Floating point value -1.929435 */
+#define HPF_Fs12000_Fc66_A1                      (-2071715325)        /* Floating point value -1.929435 */
 #define HPF_Fs12000_Fc66_A2                        1035857662         /* Floating point value 0.964718 */
-#define HPF_Fs12000_Fc66_B1                       -2095080333         /* Floating point value -1.951196 */
+#define HPF_Fs12000_Fc66_B1                      (-2095080333)        /* Floating point value -1.951196 */
 #define HPF_Fs12000_Fc66_B2                        1022587158         /* Floating point value 0.952359 */
 #define HPF_Fs16000_Fc66_A0                        1042197528         /* Floating point value 0.970622 */
-#define HPF_Fs16000_Fc66_A1                       -2084395056         /* Floating point value -1.941244 */
+#define HPF_Fs16000_Fc66_A1                      (-2084395056)        /* Floating point value -1.941244 */
 #define HPF_Fs16000_Fc66_A2                        1042197528         /* Floating point value 0.970622 */
-#define HPF_Fs16000_Fc66_B1                       -2108177912         /* Floating point value -1.963394 */
+#define HPF_Fs16000_Fc66_B1                      (-2108177912)        /* Floating point value -1.963394 */
 #define HPF_Fs16000_Fc66_B2                        1035142690         /* Floating point value 0.964052 */
 #define HPF_Fs22050_Fc66_A0                        1047445145         /* Floating point value 0.975509 */
-#define HPF_Fs22050_Fc66_A1                       -2094890289         /* Floating point value -1.951019 */
+#define HPF_Fs22050_Fc66_A1                      (-2094890289)        /* Floating point value -1.951019 */
 #define HPF_Fs22050_Fc66_A2                        1047445145         /* Floating point value 0.975509 */
-#define HPF_Fs22050_Fc66_B1                       -2118961025         /* Floating point value -1.973436 */
+#define HPF_Fs22050_Fc66_B1                      (-2118961025)        /* Floating point value -1.973436 */
 #define HPF_Fs22050_Fc66_B2                        1045593102         /* Floating point value 0.973784 */
 #define HPF_Fs24000_Fc66_A0                        1048576175         /* Floating point value 0.976563 */
-#define HPF_Fs24000_Fc66_A1                       -2097152349         /* Floating point value -1.953125 */
+#define HPF_Fs24000_Fc66_A1                      (-2097152349)        /* Floating point value -1.953125 */
 #define HPF_Fs24000_Fc66_A2                        1048576175         /* Floating point value 0.976563 */
-#define HPF_Fs24000_Fc66_B1                       -2121278255         /* Floating point value -1.975594 */
+#define HPF_Fs24000_Fc66_B1                      (-2121278255)        /* Floating point value -1.975594 */
 #define HPF_Fs24000_Fc66_B2                        1047852379         /* Floating point value 0.975889 */
 #define HPF_Fs32000_Fc66_A0                        1051780119         /* Floating point value 0.979547 */
-#define HPF_Fs32000_Fc66_A1                       -2103560237         /* Floating point value -1.959093 */
+#define HPF_Fs32000_Fc66_A1                      (-2103560237)        /* Floating point value -1.959093 */
 #define HPF_Fs32000_Fc66_A2                        1051780119         /* Floating point value 0.979547 */
-#define HPF_Fs32000_Fc66_B1                       -2127829187         /* Floating point value -1.981695 */
+#define HPF_Fs32000_Fc66_B1                      (-2127829187)        /* Floating point value -1.981695 */
 #define HPF_Fs32000_Fc66_B2                        1054265623         /* Floating point value 0.981861 */
 #define HPF_Fs44100_Fc66_A0                        1054424722         /* Floating point value 0.982010 */
-#define HPF_Fs44100_Fc66_A1                       -2108849444         /* Floating point value -1.964019 */
+#define HPF_Fs44100_Fc66_A1                      (-2108849444)        /* Floating point value -1.964019 */
 #define HPF_Fs44100_Fc66_A2                        1054424722         /* Floating point value 0.982010 */
-#define HPF_Fs44100_Fc66_B1                       -2133221723         /* Floating point value -1.986718 */
+#define HPF_Fs44100_Fc66_B1                      (-2133221723)        /* Floating point value -1.986718 */
 #define HPF_Fs44100_Fc66_B2                        1059573993         /* Floating point value 0.986805 */
 #define HPF_Fs48000_Fc66_A0                        1054993851         /* Floating point value 0.982540 */
-#define HPF_Fs48000_Fc66_A1                       -2109987702         /* Floating point value -1.965079 */
+#define HPF_Fs48000_Fc66_A1                      (-2109987702)        /* Floating point value -1.965079 */
 #define HPF_Fs48000_Fc66_A2                        1054993851         /* Floating point value 0.982540 */
-#define HPF_Fs48000_Fc66_B1                       -2134380475         /* Floating point value -1.987797 */
+#define HPF_Fs48000_Fc66_B1                      (-2134380475)        /* Floating point value -1.987797 */
 #define HPF_Fs48000_Fc66_B2                        1060718118         /* Floating point value 0.987871 */
 
  /* Coefficients for centre frequency 78Hz */
 #define HPF_Fs8000_Fc78_A0                         1016504203         /* Floating point value 0.946693 */
-#define HPF_Fs8000_Fc78_A1                        -2033008405         /* Floating point value -1.893387 */
+#define HPF_Fs8000_Fc78_A1                       (-2033008405)        /* Floating point value -1.893387 */
 #define HPF_Fs8000_Fc78_A2                         1016504203         /* Floating point value 0.946693 */
-#define HPF_Fs8000_Fc78_B1                        -2054623390         /* Floating point value -1.913517 */
+#define HPF_Fs8000_Fc78_B1                       (-2054623390)        /* Floating point value -1.913517 */
 #define HPF_Fs8000_Fc78_B2                          984733853         /* Floating point value 0.917105 */
 #define HPF_Fs11025_Fc78_A0                        1028643741         /* Floating point value 0.957999 */
-#define HPF_Fs11025_Fc78_A1                       -2057287482         /* Floating point value -1.915998 */
+#define HPF_Fs11025_Fc78_A1                      (-2057287482)        /* Floating point value -1.915998 */
 #define HPF_Fs11025_Fc78_A2                        1028643741         /* Floating point value 0.957999 */
-#define HPF_Fs11025_Fc78_B1                       -2080083769         /* Floating point value -1.937229 */
+#define HPF_Fs11025_Fc78_B1                      (-2080083769)        /* Floating point value -1.937229 */
 #define HPF_Fs11025_Fc78_B2                        1008393904         /* Floating point value 0.939140 */
 #define HPF_Fs12000_Fc78_A0                        1031271067         /* Floating point value 0.960446 */
-#define HPF_Fs12000_Fc78_A1                       -2062542133         /* Floating point value -1.920892 */
+#define HPF_Fs12000_Fc78_A1                      (-2062542133)        /* Floating point value -1.920892 */
 #define HPF_Fs12000_Fc78_A2                        1031271067         /* Floating point value 0.960446 */
-#define HPF_Fs12000_Fc78_B1                       -2085557048         /* Floating point value -1.942326 */
+#define HPF_Fs12000_Fc78_B1                      (-2085557048)        /* Floating point value -1.942326 */
 #define HPF_Fs12000_Fc78_B2                        1013551620         /* Floating point value 0.943944 */
 #define HPF_Fs16000_Fc78_A0                        1038734628         /* Floating point value 0.967397 */
-#define HPF_Fs16000_Fc78_A1                       -2077469256         /* Floating point value -1.934794 */
+#define HPF_Fs16000_Fc78_A1                      (-2077469256)        /* Floating point value -1.934794 */
 #define HPF_Fs16000_Fc78_A2                        1038734628         /* Floating point value 0.967397 */
-#define HPF_Fs16000_Fc78_B1                       -2101033380         /* Floating point value -1.956740 */
+#define HPF_Fs16000_Fc78_B1                      (-2101033380)        /* Floating point value -1.956740 */
 #define HPF_Fs16000_Fc78_B2                        1028275228         /* Floating point value 0.957656 */
 #define HPF_Fs22050_Fc78_A0                        1044918584         /* Floating point value 0.973156 */
-#define HPF_Fs22050_Fc78_A1                       -2089837169         /* Floating point value -1.946313 */
+#define HPF_Fs22050_Fc78_A1                      (-2089837169)        /* Floating point value -1.946313 */
 #define HPF_Fs22050_Fc78_A2                        1044918584         /* Floating point value 0.973156 */
-#define HPF_Fs22050_Fc78_B1                       -2113775854         /* Floating point value -1.968607 */
+#define HPF_Fs22050_Fc78_B1                      (-2113775854)        /* Floating point value -1.968607 */
 #define HPF_Fs22050_Fc78_B2                        1040555007         /* Floating point value 0.969092 */
 #define HPF_Fs24000_Fc78_A0                        1046252164         /* Floating point value 0.974398 */
-#define HPF_Fs24000_Fc78_A1                       -2092504328         /* Floating point value -1.948797 */
+#define HPF_Fs24000_Fc78_A1                      (-2092504328)        /* Floating point value -1.948797 */
 #define HPF_Fs24000_Fc78_A2                        1046252164         /* Floating point value 0.974398 */
-#define HPF_Fs24000_Fc78_B1                       -2116514229         /* Floating point value -1.971157 */
+#define HPF_Fs24000_Fc78_B1                      (-2116514229)        /* Floating point value -1.971157 */
 #define HPF_Fs24000_Fc78_B2                        1043212719         /* Floating point value 0.971568 */
 #define HPF_Fs32000_Fc78_A0                        1050031301         /* Floating point value 0.977918 */
-#define HPF_Fs32000_Fc78_A1                       -2100062603         /* Floating point value -1.955836 */
+#define HPF_Fs32000_Fc78_A1                      (-2100062603)        /* Floating point value -1.955836 */
 #define HPF_Fs32000_Fc78_A2                        1050031301         /* Floating point value 0.977918 */
-#define HPF_Fs32000_Fc78_B1                       -2124255900         /* Floating point value -1.978367 */
+#define HPF_Fs32000_Fc78_B1                      (-2124255900)        /* Floating point value -1.978367 */
 #define HPF_Fs32000_Fc78_B2                        1050762639         /* Floating point value 0.978599 */
 #define HPF_Fs44100_Fc78_A0                        1053152258         /* Floating point value 0.980824 */
-#define HPF_Fs44100_Fc78_A1                       -2106304516         /* Floating point value -1.961649 */
+#define HPF_Fs44100_Fc78_A1                      (-2106304516)        /* Floating point value -1.961649 */
 #define HPF_Fs44100_Fc78_A2                        1053152258         /* Floating point value 0.980824 */
-#define HPF_Fs44100_Fc78_B1                       -2130628742         /* Floating point value -1.984303 */
+#define HPF_Fs44100_Fc78_B1                      (-2130628742)        /* Floating point value -1.984303 */
 #define HPF_Fs44100_Fc78_B2                        1057018180         /* Floating point value 0.984425 */
 #define HPF_Fs48000_Fc78_A0                        1053824087         /* Floating point value 0.981450 */
-#define HPF_Fs48000_Fc78_A1                       -2107648173         /* Floating point value -1.962900 */
+#define HPF_Fs48000_Fc78_A1                      (-2107648173)        /* Floating point value -1.962900 */
 #define HPF_Fs48000_Fc78_A2                        1053824087         /* Floating point value 0.981450 */
-#define HPF_Fs48000_Fc78_B1                       -2131998154         /* Floating point value -1.985578 */
+#define HPF_Fs48000_Fc78_B1                      (-2131998154)        /* Floating point value -1.985578 */
 #define HPF_Fs48000_Fc78_B2                        1058367200         /* Floating point value 0.985681 */
 
  /* Coefficients for centre frequency 90Hz */
 #define HPF_Fs8000_Fc90_A0                         1009760053         /* Floating point value 0.940412 */
-#define HPF_Fs8000_Fc90_A1                        -2019520105         /* Floating point value -1.880825 */
+#define HPF_Fs8000_Fc90_A1                       (-2019520105)        /* Floating point value -1.880825 */
 #define HPF_Fs8000_Fc90_A2                         1009760053         /* Floating point value 0.940412 */
-#define HPF_Fs8000_Fc90_B1                        -2040357139         /* Floating point value -1.900231 */
+#define HPF_Fs8000_Fc90_B1                       (-2040357139)        /* Floating point value -1.900231 */
 #define HPF_Fs8000_Fc90_B2                          971711129         /* Floating point value 0.904977 */
 #define HPF_Fs11025_Fc90_A0                        1023687217         /* Floating point value 0.953383 */
-#define HPF_Fs11025_Fc90_A1                       -2047374434         /* Floating point value -1.906766 */
+#define HPF_Fs11025_Fc90_A1                      (-2047374434)        /* Floating point value -1.906766 */
 #define HPF_Fs11025_Fc90_A2                        1023687217         /* Floating point value 0.953383 */
-#define HPF_Fs11025_Fc90_B1                       -2069722397         /* Floating point value -1.927579 */
+#define HPF_Fs11025_Fc90_B1                      (-2069722397)        /* Floating point value -1.927579 */
 #define HPF_Fs11025_Fc90_B2                         998699604         /* Floating point value 0.930111 */
 #define HPF_Fs12000_Fc90_A0                        1026704754         /* Floating point value 0.956193 */
-#define HPF_Fs12000_Fc90_A1                       -2053409508         /* Floating point value -1.912387 */
+#define HPF_Fs12000_Fc90_A1                      (-2053409508)        /* Floating point value -1.912387 */
 #define HPF_Fs12000_Fc90_A2                        1026704754         /* Floating point value 0.956193 */
-#define HPF_Fs12000_Fc90_B1                       -2076035996         /* Floating point value -1.933459 */
+#define HPF_Fs12000_Fc90_B1                      (-2076035996)        /* Floating point value -1.933459 */
 #define HPF_Fs12000_Fc90_B2                        1004595918         /* Floating point value 0.935603 */
 #define HPF_Fs16000_Fc90_A0                        1035283225         /* Floating point value 0.964183 */
-#define HPF_Fs16000_Fc90_A1                       -2070566451         /* Floating point value -1.928365 */
+#define HPF_Fs16000_Fc90_A1                      (-2070566451)        /* Floating point value -1.928365 */
 #define HPF_Fs16000_Fc90_A2                        1035283225         /* Floating point value 0.964183 */
-#define HPF_Fs16000_Fc90_B1                       -2093889811         /* Floating point value -1.950087 */
+#define HPF_Fs16000_Fc90_B1                      (-2093889811)        /* Floating point value -1.950087 */
 #define HPF_Fs16000_Fc90_B2                        1021453326         /* Floating point value 0.951303 */
 #define HPF_Fs22050_Fc90_A0                        1042398116         /* Floating point value 0.970809 */
-#define HPF_Fs22050_Fc90_A1                       -2084796232         /* Floating point value -1.941618 */
+#define HPF_Fs22050_Fc90_A1                      (-2084796232)        /* Floating point value -1.941618 */
 #define HPF_Fs22050_Fc90_A2                        1042398116         /* Floating point value 0.970809 */
-#define HPF_Fs22050_Fc90_B1                       -2108591057         /* Floating point value -1.963778 */
+#define HPF_Fs22050_Fc90_B1                      (-2108591057)        /* Floating point value -1.963778 */
 #define HPF_Fs22050_Fc90_B2                        1035541188         /* Floating point value 0.964423 */
 #define HPF_Fs24000_Fc90_A0                        1043933302         /* Floating point value 0.972239 */
-#define HPF_Fs24000_Fc90_A1                       -2087866604         /* Floating point value -1.944477 */
+#define HPF_Fs24000_Fc90_A1                      (-2087866604)        /* Floating point value -1.944477 */
 #define HPF_Fs24000_Fc90_A2                        1043933302         /* Floating point value 0.972239 */
-#define HPF_Fs24000_Fc90_B1                       -2111750495         /* Floating point value -1.966721 */
+#define HPF_Fs24000_Fc90_B1                      (-2111750495)        /* Floating point value -1.966721 */
 #define HPF_Fs24000_Fc90_B2                        1038593601         /* Floating point value 0.967266 */
 #define HPF_Fs32000_Fc90_A0                        1048285391         /* Floating point value 0.976292 */
-#define HPF_Fs32000_Fc90_A1                       -2096570783         /* Floating point value -1.952584 */
+#define HPF_Fs32000_Fc90_A1                      (-2096570783)        /* Floating point value -1.952584 */
 #define HPF_Fs32000_Fc90_A2                        1048285391         /* Floating point value 0.976292 */
-#define HPF_Fs32000_Fc90_B1                       -2120682737         /* Floating point value -1.975040 */
+#define HPF_Fs32000_Fc90_B1                      (-2120682737)        /* Floating point value -1.975040 */
 #define HPF_Fs32000_Fc90_B2                        1047271295         /* Floating point value 0.975347 */
 #define HPF_Fs44100_Fc90_A0                        1051881330         /* Floating point value 0.979641 */
-#define HPF_Fs44100_Fc90_A1                       -2103762660         /* Floating point value -1.959282 */
+#define HPF_Fs44100_Fc90_A1                      (-2103762660)        /* Floating point value -1.959282 */
 #define HPF_Fs44100_Fc90_A2                        1051881330         /* Floating point value 0.979641 */
-#define HPF_Fs44100_Fc90_B1                       -2128035809         /* Floating point value -1.981888 */
+#define HPF_Fs44100_Fc90_B1                      (-2128035809)        /* Floating point value -1.981888 */
 #define HPF_Fs44100_Fc90_B2                        1054468533         /* Floating point value 0.982050 */
 #define HPF_Fs48000_Fc90_A0                        1052655619         /* Floating point value 0.980362 */
-#define HPF_Fs48000_Fc90_A1                       -2105311238         /* Floating point value -1.960724 */
+#define HPF_Fs48000_Fc90_A1                      (-2105311238)        /* Floating point value -1.960724 */
 #define HPF_Fs48000_Fc90_A2                        1052655619         /* Floating point value 0.980362 */
-#define HPF_Fs48000_Fc90_B1                       -2129615871         /* Floating point value -1.983359 */
+#define HPF_Fs48000_Fc90_B1                      (-2129615871)        /* Floating point value -1.983359 */
 #define HPF_Fs48000_Fc90_B2                        1056021492         /* Floating point value 0.983497 */
 
 
@@ -232,189 +232,189 @@
  /* Coefficients for centre frequency 55Hz */
 #define BPF_Fs8000_Fc55_A0                            9875247         /* Floating point value 0.009197 */
 #define BPF_Fs8000_Fc55_A1                                  0         /* Floating point value 0.000000 */
-#define BPF_Fs8000_Fc55_A2                           -9875247         /* Floating point value -0.009197 */
-#define BPF_Fs8000_Fc55_B1                        -2125519830         /* Floating point value -1.979545 */
+#define BPF_Fs8000_Fc55_A2                          (-9875247)        /* Floating point value -0.009197 */
+#define BPF_Fs8000_Fc55_B1                       (-2125519830)        /* Floating point value -1.979545 */
 #define BPF_Fs8000_Fc55_B2                         1053762629         /* Floating point value 0.981393 */
 #define BPF_Fs11025_Fc55_A0                           7183952         /* Floating point value 0.006691 */
 #define BPF_Fs11025_Fc55_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs11025_Fc55_A2                          -7183952         /* Floating point value -0.006691 */
-#define BPF_Fs11025_Fc55_B1                       -2131901658         /* Floating point value -1.985488 */
+#define BPF_Fs11025_Fc55_A2                         (-7183952)        /* Floating point value -0.006691 */
+#define BPF_Fs11025_Fc55_B1                      (-2131901658)        /* Floating point value -1.985488 */
 #define BPF_Fs11025_Fc55_B2                        1059207548         /* Floating point value 0.986464 */
 #define BPF_Fs12000_Fc55_A0                           6603871         /* Floating point value 0.006150 */
 #define BPF_Fs12000_Fc55_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs12000_Fc55_A2                          -6603871         /* Floating point value -0.006150 */
-#define BPF_Fs12000_Fc55_B1                       -2133238092         /* Floating point value -1.986733 */
+#define BPF_Fs12000_Fc55_A2                         (-6603871)        /* Floating point value -0.006150 */
+#define BPF_Fs12000_Fc55_B1                      (-2133238092)        /* Floating point value -1.986733 */
 #define BPF_Fs12000_Fc55_B2                        1060381143         /* Floating point value 0.987557 */
 #define BPF_Fs16000_Fc55_A0                           4960591         /* Floating point value 0.004620 */
 #define BPF_Fs16000_Fc55_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs16000_Fc55_A2                          -4960591         /* Floating point value -0.004620 */
-#define BPF_Fs16000_Fc55_B1                       -2136949052         /* Floating point value -1.990189 */
+#define BPF_Fs16000_Fc55_A2                         (-4960591)        /* Floating point value -0.004620 */
+#define BPF_Fs16000_Fc55_B1                      (-2136949052)        /* Floating point value -1.990189 */
 #define BPF_Fs16000_Fc55_B2                        1063705760         /* Floating point value 0.990653 */
 #define BPF_Fs22050_Fc55_A0                           3604131         /* Floating point value 0.003357 */
 #define BPF_Fs22050_Fc55_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs22050_Fc55_A2                          -3604131         /* Floating point value -0.003357 */
-#define BPF_Fs22050_Fc55_B1                       -2139929085         /* Floating point value -1.992964 */
+#define BPF_Fs22050_Fc55_A2                         (-3604131)        /* Floating point value -0.003357 */
+#define BPF_Fs22050_Fc55_B1                      (-2139929085)        /* Floating point value -1.992964 */
 #define BPF_Fs22050_Fc55_B2                        1066450095         /* Floating point value 0.993209 */
 #define BPF_Fs24000_Fc55_A0                           3312207         /* Floating point value 0.003085 */
 #define BPF_Fs24000_Fc55_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs24000_Fc55_A2                          -3312207         /* Floating point value -0.003085 */
-#define BPF_Fs24000_Fc55_B1                       -2140560606         /* Floating point value -1.993552 */
+#define BPF_Fs24000_Fc55_A2                         (-3312207)        /* Floating point value -0.003085 */
+#define BPF_Fs24000_Fc55_B1                      (-2140560606)        /* Floating point value -1.993552 */
 #define BPF_Fs24000_Fc55_B2                        1067040703         /* Floating point value 0.993759 */
 #define BPF_Fs32000_Fc55_A0                           2486091         /* Floating point value 0.002315 */
 #define BPF_Fs32000_Fc55_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs32000_Fc55_A2                          -2486091         /* Floating point value -0.002315 */
-#define BPF_Fs32000_Fc55_B1                       -2142328962         /* Floating point value -1.995199 */
+#define BPF_Fs32000_Fc55_A2                         (-2486091)        /* Floating point value -0.002315 */
+#define BPF_Fs32000_Fc55_B1                      (-2142328962)        /* Floating point value -1.995199 */
 #define BPF_Fs32000_Fc55_B2                        1068712067         /* Floating point value 0.995316 */
 #define BPF_Fs44100_Fc55_A0                           1805125         /* Floating point value 0.001681 */
 #define BPF_Fs44100_Fc55_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs44100_Fc55_A2                          -1805125         /* Floating point value -0.001681 */
-#define BPF_Fs44100_Fc55_B1                       -2143765772         /* Floating point value -1.996537 */
+#define BPF_Fs44100_Fc55_A2                         (-1805125)        /* Floating point value -0.001681 */
+#define BPF_Fs44100_Fc55_B1                      (-2143765772)        /* Floating point value -1.996537 */
 #define BPF_Fs44100_Fc55_B2                        1070089770         /* Floating point value 0.996599 */
 #define BPF_Fs48000_Fc55_A0                           1658687         /* Floating point value 0.001545 */
 #define BPF_Fs48000_Fc55_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs48000_Fc55_A2                          -1658687         /* Floating point value -0.001545 */
-#define BPF_Fs48000_Fc55_B1                       -2144072292         /* Floating point value -1.996823 */
+#define BPF_Fs48000_Fc55_A2                         (-1658687)        /* Floating point value -0.001545 */
+#define BPF_Fs48000_Fc55_B1                      (-2144072292)        /* Floating point value -1.996823 */
 #define BPF_Fs48000_Fc55_B2                        1070386036         /* Floating point value 0.996875 */
 
  /* Coefficients for centre frequency 66Hz */
 #define BPF_Fs8000_Fc66_A0                           13580189         /* Floating point value 0.012648 */
 #define BPF_Fs8000_Fc66_A1                                  0         /* Floating point value 0.000000 */
-#define BPF_Fs8000_Fc66_A2                          -13580189         /* Floating point value -0.012648 */
-#define BPF_Fs8000_Fc66_B1                        -2117161175         /* Floating point value -1.971760 */
+#define BPF_Fs8000_Fc66_A2                         (-13580189)        /* Floating point value -0.012648 */
+#define BPF_Fs8000_Fc66_B1                       (-2117161175)        /* Floating point value -1.971760 */
 #define BPF_Fs8000_Fc66_B2                         1046266945         /* Floating point value 0.974412 */
 #define BPF_Fs11025_Fc66_A0                           9888559         /* Floating point value 0.009209 */
 #define BPF_Fs11025_Fc66_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs11025_Fc66_A2                          -9888559         /* Floating point value -0.009209 */
-#define BPF_Fs11025_Fc66_B1                       -2125972738         /* Floating point value -1.979966 */
+#define BPF_Fs11025_Fc66_A2                         (-9888559)        /* Floating point value -0.009209 */
+#define BPF_Fs11025_Fc66_B1                      (-2125972738)        /* Floating point value -1.979966 */
 #define BPF_Fs11025_Fc66_B2                        1053735698         /* Floating point value 0.981368 */
 #define BPF_Fs12000_Fc66_A0                           9091954         /* Floating point value 0.008468 */
 #define BPF_Fs12000_Fc66_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs12000_Fc66_A2                          -9091954         /* Floating point value -0.008468 */
-#define BPF_Fs12000_Fc66_B1                       -2127818004         /* Floating point value -1.981685 */
+#define BPF_Fs12000_Fc66_A2                         (-9091954)        /* Floating point value -0.008468 */
+#define BPF_Fs12000_Fc66_B1                      (-2127818004)        /* Floating point value -1.981685 */
 #define BPF_Fs12000_Fc66_B2                        1055347356         /* Floating point value 0.982869 */
 #define BPF_Fs16000_Fc66_A0                           6833525         /* Floating point value 0.006364 */
 #define BPF_Fs16000_Fc66_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs16000_Fc66_A2                          -6833525         /* Floating point value -0.006364 */
-#define BPF_Fs16000_Fc66_B1                       -2132941739         /* Floating point value -1.986457 */
+#define BPF_Fs16000_Fc66_A2                         (-6833525)        /* Floating point value -0.006364 */
+#define BPF_Fs16000_Fc66_B1                      (-2132941739)        /* Floating point value -1.986457 */
 #define BPF_Fs16000_Fc66_B2                        1059916517         /* Floating point value 0.987124 */
 #define BPF_Fs22050_Fc66_A0                           4967309         /* Floating point value 0.004626 */
 #define BPF_Fs22050_Fc66_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs22050_Fc66_A2                          -4967309         /* Floating point value -0.004626 */
-#define BPF_Fs22050_Fc66_B1                       -2137056003         /* Floating point value -1.990288 */
+#define BPF_Fs22050_Fc66_A2                         (-4967309)        /* Floating point value -0.004626 */
+#define BPF_Fs22050_Fc66_B1                      (-2137056003)        /* Floating point value -1.990288 */
 #define BPF_Fs22050_Fc66_B2                        1063692170         /* Floating point value 0.990641 */
 #define BPF_Fs24000_Fc66_A0                           4565445         /* Floating point value 0.004252 */
 #define BPF_Fs24000_Fc66_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs24000_Fc66_A2                          -4565445         /* Floating point value -0.004252 */
-#define BPF_Fs24000_Fc66_B1                       -2137927842         /* Floating point value -1.991100 */
+#define BPF_Fs24000_Fc66_A2                         (-4565445)        /* Floating point value -0.004252 */
+#define BPF_Fs24000_Fc66_B1                      (-2137927842)        /* Floating point value -1.991100 */
 #define BPF_Fs24000_Fc66_B2                        1064505202         /* Floating point value 0.991398 */
 #define BPF_Fs32000_Fc66_A0                           3427761         /* Floating point value 0.003192 */
 #define BPF_Fs32000_Fc66_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs32000_Fc66_A2                          -3427761         /* Floating point value -0.003192 */
-#define BPF_Fs32000_Fc66_B1                       -2140369007         /* Floating point value -1.993374 */
+#define BPF_Fs32000_Fc66_A2                         (-3427761)        /* Floating point value -0.003192 */
+#define BPF_Fs32000_Fc66_B1                      (-2140369007)        /* Floating point value -1.993374 */
 #define BPF_Fs32000_Fc66_B2                        1066806920         /* Floating point value 0.993541 */
 #define BPF_Fs44100_Fc66_A0                           2489466         /* Floating point value 0.002318 */
 #define BPF_Fs44100_Fc66_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs44100_Fc66_A2                          -2489466         /* Floating point value -0.002318 */
-#define BPF_Fs44100_Fc66_B1                       -2142352342         /* Floating point value -1.995221 */
+#define BPF_Fs44100_Fc66_A2                         (-2489466)        /* Floating point value -0.002318 */
+#define BPF_Fs44100_Fc66_B1                      (-2142352342)        /* Floating point value -1.995221 */
 #define BPF_Fs44100_Fc66_B2                        1068705240         /* Floating point value 0.995309 */
 #define BPF_Fs48000_Fc66_A0                           2287632         /* Floating point value 0.002131 */
 #define BPF_Fs48000_Fc66_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs48000_Fc66_A2                          -2287632         /* Floating point value -0.002131 */
-#define BPF_Fs48000_Fc66_B1                       -2142775436         /* Floating point value -1.995615 */
+#define BPF_Fs48000_Fc66_A2                         (-2287632)        /* Floating point value -0.002131 */
+#define BPF_Fs48000_Fc66_B1                      (-2142775436)        /* Floating point value -1.995615 */
 #define BPF_Fs48000_Fc66_B2                        1069113581         /* Floating point value 0.995690 */
 
  /* Coefficients for centre frequency 78Hz */
 #define BPF_Fs8000_Fc78_A0                           19941180         /* Floating point value 0.018572 */
 #define BPF_Fs8000_Fc78_A1                                  0         /* Floating point value 0.000000 */
-#define BPF_Fs8000_Fc78_A2                          -19941180         /* Floating point value -0.018572 */
-#define BPF_Fs8000_Fc78_B1                        -2103186749         /* Floating point value -1.958745 */
+#define BPF_Fs8000_Fc78_A2                         (-19941180)        /* Floating point value -0.018572 */
+#define BPF_Fs8000_Fc78_B1                       (-2103186749)        /* Floating point value -1.958745 */
 #define BPF_Fs8000_Fc78_B2                         1033397648         /* Floating point value 0.962427 */
 #define BPF_Fs11025_Fc78_A0                          14543934         /* Floating point value 0.013545 */
 #define BPF_Fs11025_Fc78_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs11025_Fc78_A2                         -14543934         /* Floating point value -0.013545 */
-#define BPF_Fs11025_Fc78_B1                       -2115966638         /* Floating point value -1.970647 */
+#define BPF_Fs11025_Fc78_A2                        (-14543934)        /* Floating point value -0.013545 */
+#define BPF_Fs11025_Fc78_B1                      (-2115966638)        /* Floating point value -1.970647 */
 #define BPF_Fs11025_Fc78_B2                        1044317135         /* Floating point value 0.972596 */
 #define BPF_Fs12000_Fc78_A0                          13376999         /* Floating point value 0.012458 */
 #define BPF_Fs12000_Fc78_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs12000_Fc78_A2                         -13376999         /* Floating point value -0.012458 */
-#define BPF_Fs12000_Fc78_B1                       -2118651708         /* Floating point value -1.973148 */
+#define BPF_Fs12000_Fc78_A2                        (-13376999)        /* Floating point value -0.012458 */
+#define BPF_Fs12000_Fc78_B1                      (-2118651708)        /* Floating point value -1.973148 */
 #define BPF_Fs12000_Fc78_B2                        1046678029         /* Floating point value 0.974795 */
 #define BPF_Fs16000_Fc78_A0                          10064222         /* Floating point value 0.009373 */
 #define BPF_Fs16000_Fc78_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs16000_Fc78_A2                         -10064222         /* Floating point value -0.009373 */
-#define BPF_Fs16000_Fc78_B1                       -2126124342         /* Floating point value -1.980108 */
+#define BPF_Fs16000_Fc78_A2                        (-10064222)        /* Floating point value -0.009373 */
+#define BPF_Fs16000_Fc78_B1                      (-2126124342)        /* Floating point value -1.980108 */
 #define BPF_Fs16000_Fc78_B2                        1053380304         /* Floating point value 0.981037 */
 #define BPF_Fs22050_Fc78_A0                           7321780         /* Floating point value 0.006819 */
 #define BPF_Fs22050_Fc78_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs22050_Fc78_A2                          -7321780         /* Floating point value -0.006819 */
-#define BPF_Fs22050_Fc78_B1                       -2132143771         /* Floating point value -1.985714 */
+#define BPF_Fs22050_Fc78_A2                         (-7321780)        /* Floating point value -0.006819 */
+#define BPF_Fs22050_Fc78_B1                      (-2132143771)        /* Floating point value -1.985714 */
 #define BPF_Fs22050_Fc78_B2                        1058928700         /* Floating point value 0.986204 */
 #define BPF_Fs24000_Fc78_A0                           6730640         /* Floating point value 0.006268 */
 #define BPF_Fs24000_Fc78_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs24000_Fc78_A2                          -6730640         /* Floating point value -0.006268 */
-#define BPF_Fs24000_Fc78_B1                       -2133421607         /* Floating point value -1.986904 */
+#define BPF_Fs24000_Fc78_A2                         (-6730640)        /* Floating point value -0.006268 */
+#define BPF_Fs24000_Fc78_B1                      (-2133421607)        /* Floating point value -1.986904 */
 #define BPF_Fs24000_Fc78_B2                        1060124669         /* Floating point value 0.987318 */
 #define BPF_Fs32000_Fc78_A0                           5055965         /* Floating point value 0.004709 */
 #define BPF_Fs32000_Fc78_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs32000_Fc78_A2                          -5055965         /* Floating point value -0.004709 */
-#define BPF_Fs32000_Fc78_B1                       -2137003977         /* Floating point value -1.990240 */
+#define BPF_Fs32000_Fc78_A2                         (-5055965)        /* Floating point value -0.004709 */
+#define BPF_Fs32000_Fc78_B1                      (-2137003977)        /* Floating point value -1.990240 */
 #define BPF_Fs32000_Fc78_B2                        1063512802         /* Floating point value 0.990473 */
 #define BPF_Fs44100_Fc78_A0                           3673516         /* Floating point value 0.003421 */
 #define BPF_Fs44100_Fc78_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs44100_Fc78_A2                          -3673516         /* Floating point value -0.003421 */
-#define BPF_Fs44100_Fc78_B1                       -2139919394         /* Floating point value -1.992955 */
+#define BPF_Fs44100_Fc78_A2                         (-3673516)        /* Floating point value -0.003421 */
+#define BPF_Fs44100_Fc78_B1                      (-2139919394)        /* Floating point value -1.992955 */
 #define BPF_Fs44100_Fc78_B2                        1066309718         /* Floating point value 0.993078 */
 #define BPF_Fs48000_Fc78_A0                           3375990         /* Floating point value 0.003144 */
 #define BPF_Fs48000_Fc78_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs48000_Fc78_A2                          -3375990         /* Floating point value -0.003144 */
-#define BPF_Fs48000_Fc78_B1                       -2140541906         /* Floating point value -1.993535 */
+#define BPF_Fs48000_Fc78_A2                         (-3375990)        /* Floating point value -0.003144 */
+#define BPF_Fs48000_Fc78_B1                      (-2140541906)        /* Floating point value -1.993535 */
 #define BPF_Fs48000_Fc78_B2                        1066911660         /* Floating point value 0.993639 */
 
  /* Coefficients for centre frequency 90Hz */
 #define BPF_Fs8000_Fc90_A0                           24438548         /* Floating point value 0.022760 */
 #define BPF_Fs8000_Fc90_A1                                  0         /* Floating point value 0.000000 */
-#define BPF_Fs8000_Fc90_A2                          -24438548         /* Floating point value -0.022760 */
-#define BPF_Fs8000_Fc90_B1                        -2092801347         /* Floating point value -1.949073 */
+#define BPF_Fs8000_Fc90_A2                         (-24438548)        /* Floating point value -0.022760 */
+#define BPF_Fs8000_Fc90_B1                       (-2092801347)        /* Floating point value -1.949073 */
 #define BPF_Fs8000_Fc90_B2                         1024298757         /* Floating point value 0.953953 */
 #define BPF_Fs11025_Fc90_A0                          17844385         /* Floating point value 0.016619 */
 #define BPF_Fs11025_Fc90_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs11025_Fc90_A2                         -17844385         /* Floating point value -0.016619 */
-#define BPF_Fs11025_Fc90_B1                       -2108604921         /* Floating point value -1.963791 */
+#define BPF_Fs11025_Fc90_A2                        (-17844385)        /* Floating point value -0.016619 */
+#define BPF_Fs11025_Fc90_B1                      (-2108604921)        /* Floating point value -1.963791 */
 #define BPF_Fs11025_Fc90_B2                        1037639797         /* Floating point value 0.966377 */
 #define BPF_Fs12000_Fc90_A0                          16416707         /* Floating point value 0.015289 */
 #define BPF_Fs12000_Fc90_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs12000_Fc90_A2                         -16416707         /* Floating point value -0.015289 */
-#define BPF_Fs12000_Fc90_B1                       -2111922936         /* Floating point value -1.966882 */
+#define BPF_Fs12000_Fc90_A2                        (-16416707)        /* Floating point value -0.015289 */
+#define BPF_Fs12000_Fc90_B1                      (-2111922936)        /* Floating point value -1.966882 */
 #define BPF_Fs12000_Fc90_B2                        1040528216         /* Floating point value 0.969067 */
 #define BPF_Fs16000_Fc90_A0                          12359883         /* Floating point value 0.011511 */
 #define BPF_Fs16000_Fc90_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs16000_Fc90_A2                         -12359883         /* Floating point value -0.011511 */
-#define BPF_Fs16000_Fc90_B1                       -2121152162         /* Floating point value -1.975477 */
+#define BPF_Fs16000_Fc90_A2                        (-12359883)        /* Floating point value -0.011511 */
+#define BPF_Fs16000_Fc90_B1                      (-2121152162)        /* Floating point value -1.975477 */
 #define BPF_Fs16000_Fc90_B2                        1048735817         /* Floating point value 0.976711 */
 #define BPF_Fs22050_Fc90_A0                           8997173         /* Floating point value 0.008379 */
 #define BPF_Fs22050_Fc90_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs22050_Fc90_A2                          -8997173         /* Floating point value -0.008379 */
-#define BPF_Fs22050_Fc90_B1                       -2128580762         /* Floating point value -1.982395 */
+#define BPF_Fs22050_Fc90_A2                         (-8997173)        /* Floating point value -0.008379 */
+#define BPF_Fs22050_Fc90_B1                      (-2128580762)        /* Floating point value -1.982395 */
 #define BPF_Fs22050_Fc90_B2                        1055539113         /* Floating point value 0.983047 */
 #define BPF_Fs24000_Fc90_A0                           8271818         /* Floating point value 0.007704 */
 #define BPF_Fs24000_Fc90_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs24000_Fc90_A2                          -8271818         /* Floating point value -0.007704 */
-#define BPF_Fs24000_Fc90_B1                       -2130157013         /* Floating point value -1.983863 */
+#define BPF_Fs24000_Fc90_A2                         (-8271818)        /* Floating point value -0.007704 */
+#define BPF_Fs24000_Fc90_B1                      (-2130157013)        /* Floating point value -1.983863 */
 #define BPF_Fs24000_Fc90_B2                        1057006621         /* Floating point value 0.984414 */
 #define BPF_Fs32000_Fc90_A0                           6215918         /* Floating point value 0.005789 */
 #define BPF_Fs32000_Fc90_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs32000_Fc90_A2                          -6215918         /* Floating point value -0.005789 */
-#define BPF_Fs32000_Fc90_B1                       -2134574521         /* Floating point value -1.987977 */
+#define BPF_Fs32000_Fc90_A2                         (-6215918)        /* Floating point value -0.005789 */
+#define BPF_Fs32000_Fc90_B1                      (-2134574521)        /* Floating point value -1.987977 */
 #define BPF_Fs32000_Fc90_B2                        1061166033         /* Floating point value 0.988288 */
 #define BPF_Fs44100_Fc90_A0                           4517651         /* Floating point value 0.004207 */
 #define BPF_Fs44100_Fc90_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs44100_Fc90_A2                          -4517651         /* Floating point value -0.004207 */
-#define BPF_Fs44100_Fc90_B1                       -2138167926         /* Floating point value -1.991324 */
+#define BPF_Fs44100_Fc90_A2                         (-4517651)        /* Floating point value -0.004207 */
+#define BPF_Fs44100_Fc90_B1                      (-2138167926)        /* Floating point value -1.991324 */
 #define BPF_Fs44100_Fc90_B2                        1064601898         /* Floating point value 0.991488 */
 #define BPF_Fs48000_Fc90_A0                           4152024         /* Floating point value 0.003867 */
 #define BPF_Fs48000_Fc90_A1                                 0         /* Floating point value 0.000000 */
-#define BPF_Fs48000_Fc90_A2                          -4152024         /* Floating point value -0.003867 */
-#define BPF_Fs48000_Fc90_B1                       -2138935002         /* Floating point value -1.992038 */
+#define BPF_Fs48000_Fc90_A2                         (-4152024)        /* Floating point value -0.003867 */
+#define BPF_Fs48000_Fc90_B1                      (-2138935002)        /* Floating point value -1.992038 */
 #define BPF_Fs48000_Fc90_B2                        1065341620         /* Floating point value 0.992177 */
 
 
diff --git a/media/libeffects/lvm/lib/Bass/src/LVDBE_Control.c b/media/libeffects/lvm/lib/Bass/src/LVDBE_Control.c
index ab2a832..b6632a3 100644
--- a/media/libeffects/lvm/lib/Bass/src/LVDBE_Control.c
+++ b/media/libeffects/lvm/lib/Bass/src/LVDBE_Control.c
@@ -334,10 +334,10 @@
                      pParams);                          /* New parameters */
 
         LVC_Mixer_SetTimeConstant(&pBypassMixer_Instance->MixerStream[0],
-            LVDBE_BYPASS_MIXER_TC,pParams->SampleRate,2);
+            LVDBE_BYPASS_MIXER_TC,(LVM_Fs_en)pParams->SampleRate,2);
 
         LVC_Mixer_SetTimeConstant(&pBypassMixer_Instance->MixerStream[1],
-            LVDBE_BYPASS_MIXER_TC,pParams->SampleRate,2);
+            LVDBE_BYPASS_MIXER_TC,(LVM_Fs_en)pParams->SampleRate,2);
 
 
     }
diff --git a/media/libeffects/lvm/lib/Bass/src/LVDBE_Init.c b/media/libeffects/lvm/lib/Bass/src/LVDBE_Init.c
index 35e5bc8..a3623bc 100644
--- a/media/libeffects/lvm/lib/Bass/src/LVDBE_Init.c
+++ b/media/libeffects/lvm/lib/Bass/src/LVDBE_Init.c
@@ -270,7 +270,7 @@
     pBypassMixer_Instance->MixerStream[0].CallbackSet=0;
     LVC_Mixer_Init(&pBypassMixer_Instance->MixerStream[0],0,0);
     LVC_Mixer_SetTimeConstant(&pBypassMixer_Instance->MixerStream[0],
-        LVDBE_BYPASS_MIXER_TC,pInstance->Params.SampleRate,2);
+        LVDBE_BYPASS_MIXER_TC,(LVM_Fs_en)pInstance->Params.SampleRate,2);
     /*
      * Setup the mixer gain for the unprocessed path
      */
@@ -280,8 +280,7 @@
     pBypassMixer_Instance->MixerStream[1].CallbackSet=0;
     LVC_Mixer_Init(&pBypassMixer_Instance->MixerStream[1],0x00007FFF,0x00007FFF);
     LVC_Mixer_SetTimeConstant(&pBypassMixer_Instance->MixerStream[1],
-        LVDBE_BYPASS_MIXER_TC,pInstance->Params.SampleRate,2);
+        LVDBE_BYPASS_MIXER_TC,(LVM_Fs_en)pInstance->Params.SampleRate,2);
 
     return(LVDBE_SUCCESS);
 }
-
diff --git a/media/libeffects/lvm/lib/Bundle/src/LVM_Coeffs.h b/media/libeffects/lvm/lib/Bundle/src/LVM_Coeffs.h
index f578db9..2712b2c 100644
--- a/media/libeffects/lvm/lib/Bundle/src/LVM_Coeffs.h
+++ b/media/libeffects/lvm/lib/Bundle/src/LVM_Coeffs.h
@@ -74,63 +74,63 @@
 #define HPF_Fs22050_Gain6_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain6_Shift                             1         /* Shift value */
                                                                     /* Gain =  7.000000 dB */
-#define HPF_Fs22050_Gain7_A0                             -164         /* Floating point value -0.005002 */
+#define HPF_Fs22050_Gain7_A0                            (-164)        /* Floating point value -0.005002 */
 #define HPF_Fs22050_Gain7_A1                            11311         /* Floating point value 0.345199 */
 #define HPF_Fs22050_Gain7_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain7_B1                            12125         /* Floating point value 0.370033 */
 #define HPF_Fs22050_Gain7_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain7_Shift                             2         /* Shift value */
                                                                     /* Gain =  8.000000 dB */
-#define HPF_Fs22050_Gain8_A0                             -864         /* Floating point value -0.026368 */
+#define HPF_Fs22050_Gain8_A0                            (-864)        /* Floating point value -0.026368 */
 #define HPF_Fs22050_Gain8_A1                            12012         /* Floating point value 0.366565 */
 #define HPF_Fs22050_Gain8_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain8_B1                            12125         /* Floating point value 0.370033 */
 #define HPF_Fs22050_Gain8_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain8_Shift                             2         /* Shift value */
                                                                     /* Gain =  9.000000 dB */
-#define HPF_Fs22050_Gain9_A0                            -1650         /* Floating point value -0.050340 */
+#define HPF_Fs22050_Gain9_A0                           (-1650)        /* Floating point value -0.050340 */
 #define HPF_Fs22050_Gain9_A1                            12797         /* Floating point value 0.390537 */
 #define HPF_Fs22050_Gain9_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain9_B1                            12125         /* Floating point value 0.370033 */
 #define HPF_Fs22050_Gain9_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain9_Shift                             2         /* Shift value */
                                                                     /* Gain =  10.000000 dB */
-#define HPF_Fs22050_Gain10_A0                           -2531         /* Floating point value -0.077238 */
+#define HPF_Fs22050_Gain10_A0                          (-2531)        /* Floating point value -0.077238 */
 #define HPF_Fs22050_Gain10_A1                           13679         /* Floating point value 0.417435 */
 #define HPF_Fs22050_Gain10_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain10_B1                           12125         /* Floating point value 0.370033 */
 #define HPF_Fs22050_Gain10_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain10_Shift                            2         /* Shift value */
                                                                     /* Gain =  11.000000 dB */
-#define HPF_Fs22050_Gain11_A0                           -3520         /* Floating point value -0.107417 */
+#define HPF_Fs22050_Gain11_A0                          (-3520)        /* Floating point value -0.107417 */
 #define HPF_Fs22050_Gain11_A1                           14667         /* Floating point value 0.447615 */
 #define HPF_Fs22050_Gain11_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain11_B1                           12125         /* Floating point value 0.370033 */
 #define HPF_Fs22050_Gain11_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain11_Shift                            2         /* Shift value */
                                                                     /* Gain =  12.000000 dB */
-#define HPF_Fs22050_Gain12_A0                           -4629         /* Floating point value -0.141279 */
+#define HPF_Fs22050_Gain12_A0                          (-4629)        /* Floating point value -0.141279 */
 #define HPF_Fs22050_Gain12_A1                           15777         /* Floating point value 0.481477 */
 #define HPF_Fs22050_Gain12_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain12_B1                           12125         /* Floating point value 0.370033 */
 #define HPF_Fs22050_Gain12_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain12_Shift                            2         /* Shift value */
                                                                     /* Gain =  13.000000 dB */
-#define HPF_Fs22050_Gain13_A0                           -2944         /* Floating point value -0.089849 */
+#define HPF_Fs22050_Gain13_A0                          (-2944)        /* Floating point value -0.089849 */
 #define HPF_Fs22050_Gain13_A1                            8531         /* Floating point value 0.260352 */
 #define HPF_Fs22050_Gain13_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain13_B1                           12125         /* Floating point value 0.370033 */
 #define HPF_Fs22050_Gain13_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain13_Shift                            3         /* Shift value */
                                                                     /* Gain =  14.000000 dB */
-#define HPF_Fs22050_Gain14_A0                           -3644         /* Floating point value -0.111215 */
+#define HPF_Fs22050_Gain14_A0                          (-3644)        /* Floating point value -0.111215 */
 #define HPF_Fs22050_Gain14_A1                            9231         /* Floating point value 0.281718 */
 #define HPF_Fs22050_Gain14_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain14_B1                           12125         /* Floating point value 0.370033 */
 #define HPF_Fs22050_Gain14_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain14_Shift                            3         /* Shift value */
                                                                     /* Gain =  15.000000 dB */
-#define HPF_Fs22050_Gain15_A0                           -4430         /* Floating point value -0.135187 */
+#define HPF_Fs22050_Gain15_A0                          (-4430)        /* Floating point value -0.135187 */
 #define HPF_Fs22050_Gain15_A1                           10017         /* Floating point value 0.305690 */
 #define HPF_Fs22050_Gain15_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs22050_Gain15_B1                           12125         /* Floating point value 0.370033 */
@@ -168,77 +168,77 @@
 #define HPF_Fs24000_Gain4_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain4_Shift                             1         /* Shift value */
                                                                     /* Gain =  5.000000 dB */
-#define HPF_Fs24000_Gain5_A0                             -275         /* Floating point value -0.008383 */
+#define HPF_Fs24000_Gain5_A0                            (-275)        /* Floating point value -0.008383 */
 #define HPF_Fs24000_Gain5_A1                            20860         /* Floating point value 0.636589 */
 #define HPF_Fs24000_Gain5_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain5_B1                             8780         /* Floating point value 0.267949 */
 #define HPF_Fs24000_Gain5_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain5_Shift                             1         /* Shift value */
                                                                     /* Gain =  6.000000 dB */
-#define HPF_Fs24000_Gain6_A0                            -1564         /* Floating point value -0.047733 */
+#define HPF_Fs24000_Gain6_A0                           (-1564)        /* Floating point value -0.047733 */
 #define HPF_Fs24000_Gain6_A1                            22149         /* Floating point value 0.675938 */
 #define HPF_Fs24000_Gain6_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain6_B1                             8780         /* Floating point value 0.267949 */
 #define HPF_Fs24000_Gain6_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain6_Shift                             1         /* Shift value */
                                                                     /* Gain =  7.000000 dB */
-#define HPF_Fs24000_Gain7_A0                            -1509         /* Floating point value -0.046051 */
+#define HPF_Fs24000_Gain7_A0                           (-1509)        /* Floating point value -0.046051 */
 #define HPF_Fs24000_Gain7_A1                            11826         /* Floating point value 0.360899 */
 #define HPF_Fs24000_Gain7_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain7_B1                             8780         /* Floating point value 0.267949 */
 #define HPF_Fs24000_Gain7_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain7_Shift                             2         /* Shift value */
                                                                     /* Gain =  8.000000 dB */
-#define HPF_Fs24000_Gain8_A0                            -2323         /* Floating point value -0.070878 */
+#define HPF_Fs24000_Gain8_A0                           (-2323)        /* Floating point value -0.070878 */
 #define HPF_Fs24000_Gain8_A1                            12640         /* Floating point value 0.385727 */
 #define HPF_Fs24000_Gain8_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain8_B1                             8780         /* Floating point value 0.267949 */
 #define HPF_Fs24000_Gain8_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain8_Shift                             2         /* Shift value */
                                                                     /* Gain =  9.000000 dB */
-#define HPF_Fs24000_Gain9_A0                            -3235         /* Floating point value -0.098736 */
+#define HPF_Fs24000_Gain9_A0                           (-3235)        /* Floating point value -0.098736 */
 #define HPF_Fs24000_Gain9_A1                            13552         /* Floating point value 0.413584 */
 #define HPF_Fs24000_Gain9_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain9_B1                             8780         /* Floating point value 0.267949 */
 #define HPF_Fs24000_Gain9_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain9_Shift                             2         /* Shift value */
                                                                     /* Gain =  10.000000 dB */
-#define HPF_Fs24000_Gain10_A0                           -4260         /* Floating point value -0.129992 */
+#define HPF_Fs24000_Gain10_A0                          (-4260)        /* Floating point value -0.129992 */
 #define HPF_Fs24000_Gain10_A1                           14577         /* Floating point value 0.444841 */
 #define HPF_Fs24000_Gain10_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain10_B1                            8780         /* Floating point value 0.267949 */
 #define HPF_Fs24000_Gain10_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain10_Shift                            2         /* Shift value */
                                                                     /* Gain =  11.000000 dB */
-#define HPF_Fs24000_Gain11_A0                           -5409         /* Floating point value -0.165062 */
+#define HPF_Fs24000_Gain11_A0                          (-5409)        /* Floating point value -0.165062 */
 #define HPF_Fs24000_Gain11_A1                           15726         /* Floating point value 0.479911 */
 #define HPF_Fs24000_Gain11_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain11_B1                            8780         /* Floating point value 0.267949 */
 #define HPF_Fs24000_Gain11_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain11_Shift                            2         /* Shift value */
                                                                     /* Gain =  12.000000 dB */
-#define HPF_Fs24000_Gain12_A0                           -6698         /* Floating point value -0.204411 */
+#define HPF_Fs24000_Gain12_A0                          (-6698)        /* Floating point value -0.204411 */
 #define HPF_Fs24000_Gain12_A1                           17015         /* Floating point value 0.519260 */
 #define HPF_Fs24000_Gain12_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain12_B1                            8780         /* Floating point value 0.267949 */
 #define HPF_Fs24000_Gain12_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain12_Shift                            2         /* Shift value */
                                                                     /* Gain =  13.000000 dB */
-#define HPF_Fs24000_Gain13_A0                           -4082         /* Floating point value -0.124576 */
+#define HPF_Fs24000_Gain13_A0                          (-4082)        /* Floating point value -0.124576 */
 #define HPF_Fs24000_Gain13_A1                            9253         /* Floating point value 0.282374 */
 #define HPF_Fs24000_Gain13_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain13_B1                            8780         /* Floating point value 0.267949 */
 #define HPF_Fs24000_Gain13_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain13_Shift                            3         /* Shift value */
                                                                     /* Gain =  14.000000 dB */
-#define HPF_Fs24000_Gain14_A0                           -4896         /* Floating point value -0.149404 */
+#define HPF_Fs24000_Gain14_A0                          (-4896)        /* Floating point value -0.149404 */
 #define HPF_Fs24000_Gain14_A1                           10066         /* Floating point value 0.307202 */
 #define HPF_Fs24000_Gain14_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain14_B1                            8780         /* Floating point value 0.267949 */
 #define HPF_Fs24000_Gain14_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain14_Shift                            3         /* Shift value */
                                                                     /* Gain =  15.000000 dB */
-#define HPF_Fs24000_Gain15_A0                           -5808         /* Floating point value -0.177261 */
+#define HPF_Fs24000_Gain15_A0                          (-5808)        /* Floating point value -0.177261 */
 #define HPF_Fs24000_Gain15_A1                           10979         /* Floating point value 0.335059 */
 #define HPF_Fs24000_Gain15_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs24000_Gain15_B1                            8780         /* Floating point value 0.267949 */
@@ -249,105 +249,105 @@
 /* Coefficients for sample rate 32000Hz */
                                                                     /* Gain =  1.000000 dB */
 #define HPF_Fs32000_Gain1_A0                            17225         /* Floating point value 0.525677 */
-#define HPF_Fs32000_Gain1_A1                             -990         /* Floating point value -0.030227 */
+#define HPF_Fs32000_Gain1_A1                            (-990)        /* Floating point value -0.030227 */
 #define HPF_Fs32000_Gain1_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain1_B1                                0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain1_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain1_Shift                             1         /* Shift value */
                                                                     /* Gain =  2.000000 dB */
 #define HPF_Fs32000_Gain2_A0                            18337         /* Floating point value 0.559593 */
-#define HPF_Fs32000_Gain2_A1                            -2102         /* Floating point value -0.064142 */
+#define HPF_Fs32000_Gain2_A1                           (-2102)        /* Floating point value -0.064142 */
 #define HPF_Fs32000_Gain2_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain2_B1                                0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain2_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain2_Shift                             1         /* Shift value */
                                                                     /* Gain =  3.000000 dB */
 #define HPF_Fs32000_Gain3_A0                            19584         /* Floating point value 0.597646 */
-#define HPF_Fs32000_Gain3_A1                            -3349         /* Floating point value -0.102196 */
+#define HPF_Fs32000_Gain3_A1                           (-3349)        /* Floating point value -0.102196 */
 #define HPF_Fs32000_Gain3_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain3_B1                                0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain3_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain3_Shift                             1         /* Shift value */
                                                                     /* Gain =  4.000000 dB */
 #define HPF_Fs32000_Gain4_A0                            20983         /* Floating point value 0.640343 */
-#define HPF_Fs32000_Gain4_A1                            -4748         /* Floating point value -0.144893 */
+#define HPF_Fs32000_Gain4_A1                           (-4748)        /* Floating point value -0.144893 */
 #define HPF_Fs32000_Gain4_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain4_B1                                0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain4_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain4_Shift                             1         /* Shift value */
                                                                     /* Gain =  5.000000 dB */
 #define HPF_Fs32000_Gain5_A0                            22553         /* Floating point value 0.688250 */
-#define HPF_Fs32000_Gain5_A1                            -6318         /* Floating point value -0.192799 */
+#define HPF_Fs32000_Gain5_A1                           (-6318)        /* Floating point value -0.192799 */
 #define HPF_Fs32000_Gain5_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain5_B1                                0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain5_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain5_Shift                             1         /* Shift value */
                                                                     /* Gain =  6.000000 dB */
 #define HPF_Fs32000_Gain6_A0                            24314         /* Floating point value 0.742002 */
-#define HPF_Fs32000_Gain6_A1                            -8079         /* Floating point value -0.246551 */
+#define HPF_Fs32000_Gain6_A1                           (-8079)        /* Floating point value -0.246551 */
 #define HPF_Fs32000_Gain6_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain6_B1                                0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain6_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain6_Shift                             1         /* Shift value */
                                                                     /* Gain =  7.000000 dB */
 #define HPF_Fs32000_Gain7_A0                            13176         /* Floating point value 0.402109 */
-#define HPF_Fs32000_Gain7_A1                            -5040         /* Floating point value -0.153795 */
+#define HPF_Fs32000_Gain7_A1                           (-5040)        /* Floating point value -0.153795 */
 #define HPF_Fs32000_Gain7_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain7_B1                                0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain7_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain7_Shift                             2         /* Shift value */
                                                                     /* Gain =  8.000000 dB */
 #define HPF_Fs32000_Gain8_A0                            14288         /* Floating point value 0.436024 */
-#define HPF_Fs32000_Gain8_A1                            -6151         /* Floating point value -0.187711 */
+#define HPF_Fs32000_Gain8_A1                           (-6151)        /* Floating point value -0.187711 */
 #define HPF_Fs32000_Gain8_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain8_B1                                0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain8_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain8_Shift                             2         /* Shift value */
                                                                     /* Gain =  9.000000 dB */
 #define HPF_Fs32000_Gain9_A0                            15535         /* Floating point value 0.474078 */
-#define HPF_Fs32000_Gain9_A1                            -7398         /* Floating point value -0.225764 */
+#define HPF_Fs32000_Gain9_A1                           (-7398)        /* Floating point value -0.225764 */
 #define HPF_Fs32000_Gain9_A2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain9_B1                                0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain9_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain9_Shift                             2         /* Shift value */
                                                                     /* Gain =  10.000000 dB */
 #define HPF_Fs32000_Gain10_A0                           16934         /* Floating point value 0.516774 */
-#define HPF_Fs32000_Gain10_A1                           -8797         /* Floating point value -0.268461 */
+#define HPF_Fs32000_Gain10_A1                          (-8797)        /* Floating point value -0.268461 */
 #define HPF_Fs32000_Gain10_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain10_B1                               0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain10_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain10_Shift                            2         /* Shift value */
                                                                     /* Gain =  11.000000 dB */
 #define HPF_Fs32000_Gain11_A0                           18503         /* Floating point value 0.564681 */
-#define HPF_Fs32000_Gain11_A1                          -10367         /* Floating point value -0.316368 */
+#define HPF_Fs32000_Gain11_A1                         (-10367)        /* Floating point value -0.316368 */
 #define HPF_Fs32000_Gain11_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain11_B1                               0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain11_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain11_Shift                            2         /* Shift value */
                                                                     /* Gain =  12.000000 dB */
 #define HPF_Fs32000_Gain12_A0                           20265         /* Floating point value 0.618433 */
-#define HPF_Fs32000_Gain12_A1                          -12128         /* Floating point value -0.370120 */
+#define HPF_Fs32000_Gain12_A1                         (-12128)        /* Floating point value -0.370120 */
 #define HPF_Fs32000_Gain12_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain12_B1                               0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain12_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain12_Shift                            2         /* Shift value */
                                                                     /* Gain =  13.000000 dB */
 #define HPF_Fs32000_Gain13_A0                           11147         /* Floating point value 0.340178 */
-#define HPF_Fs32000_Gain13_A1                           -7069         /* Floating point value -0.215726 */
+#define HPF_Fs32000_Gain13_A1                          (-7069)        /* Floating point value -0.215726 */
 #define HPF_Fs32000_Gain13_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain13_B1                               0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain13_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain13_Shift                            3         /* Shift value */
                                                                     /* Gain =  14.000000 dB */
 #define HPF_Fs32000_Gain14_A0                           12258         /* Floating point value 0.374093 */
-#define HPF_Fs32000_Gain14_A1                           -8180         /* Floating point value -0.249642 */
+#define HPF_Fs32000_Gain14_A1                          (-8180)        /* Floating point value -0.249642 */
 #define HPF_Fs32000_Gain14_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain14_B1                               0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain14_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain14_Shift                            3         /* Shift value */
                                                                     /* Gain =  15.000000 dB */
 #define HPF_Fs32000_Gain15_A0                           13505         /* Floating point value 0.412147 */
-#define HPF_Fs32000_Gain15_A1                           -9427         /* Floating point value -0.287695 */
+#define HPF_Fs32000_Gain15_A1                          (-9427)        /* Floating point value -0.287695 */
 #define HPF_Fs32000_Gain15_A2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs32000_Gain15_B1                               0         /* Floating point value -0.000000 */
 #define HPF_Fs32000_Gain15_B2                               0         /* Floating point value 0.000000 */
@@ -357,107 +357,107 @@
 /* Coefficients for sample rate 44100Hz */
                                                                     /* Gain =  1.000000 dB */
 #define HPF_Fs44100_Gain1_A0                            17442         /* Floating point value 0.532294 */
-#define HPF_Fs44100_Gain1_A1                            -4761         /* Floating point value -0.145294 */
+#define HPF_Fs44100_Gain1_A1                           (-4761)        /* Floating point value -0.145294 */
 #define HPF_Fs44100_Gain1_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain1_B1                            -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain1_B1                           (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain1_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain1_Shift                             1         /* Shift value */
                                                                     /* Gain =  2.000000 dB */
 #define HPF_Fs44100_Gain2_A0                            18797         /* Floating point value 0.573633 */
-#define HPF_Fs44100_Gain2_A1                            -6116         /* Floating point value -0.186634 */
+#define HPF_Fs44100_Gain2_A1                           (-6116)        /* Floating point value -0.186634 */
 #define HPF_Fs44100_Gain2_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain2_B1                            -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain2_B1                           (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain2_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain2_Shift                             1         /* Shift value */
                                                                     /* Gain =  3.000000 dB */
 #define HPF_Fs44100_Gain3_A0                            20317         /* Floating point value 0.620016 */
-#define HPF_Fs44100_Gain3_A1                            -7635         /* Floating point value -0.233017 */
+#define HPF_Fs44100_Gain3_A1                           (-7635)        /* Floating point value -0.233017 */
 #define HPF_Fs44100_Gain3_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain3_B1                            -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain3_B1                           (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain3_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain3_Shift                             1         /* Shift value */
                                                                     /* Gain =  4.000000 dB */
 #define HPF_Fs44100_Gain4_A0                            22022         /* Floating point value 0.672059 */
-#define HPF_Fs44100_Gain4_A1                            -9341         /* Floating point value -0.285060 */
+#define HPF_Fs44100_Gain4_A1                           (-9341)        /* Floating point value -0.285060 */
 #define HPF_Fs44100_Gain4_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain4_B1                            -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain4_B1                           (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain4_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain4_Shift                             1         /* Shift value */
                                                                     /* Gain =  5.000000 dB */
 #define HPF_Fs44100_Gain5_A0                            23935         /* Floating point value 0.730452 */
-#define HPF_Fs44100_Gain5_A1                           -11254         /* Floating point value -0.343453 */
+#define HPF_Fs44100_Gain5_A1                          (-11254)        /* Floating point value -0.343453 */
 #define HPF_Fs44100_Gain5_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain5_B1                            -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain5_B1                           (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain5_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain5_Shift                             1         /* Shift value */
                                                                     /* Gain =  6.000000 dB */
 #define HPF_Fs44100_Gain6_A0                            26082         /* Floating point value 0.795970 */
-#define HPF_Fs44100_Gain6_A1                           -13401         /* Floating point value -0.408971 */
+#define HPF_Fs44100_Gain6_A1                          (-13401)        /* Floating point value -0.408971 */
 #define HPF_Fs44100_Gain6_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain6_B1                            -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain6_B1                           (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain6_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain6_Shift                             1         /* Shift value */
                                                                     /* Gain =  7.000000 dB */
 #define HPF_Fs44100_Gain7_A0                            14279         /* Floating point value 0.435774 */
-#define HPF_Fs44100_Gain7_A1                            -7924         /* Floating point value -0.241815 */
+#define HPF_Fs44100_Gain7_A1                           (-7924)        /* Floating point value -0.241815 */
 #define HPF_Fs44100_Gain7_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain7_B1                            -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain7_B1                           (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain7_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain7_Shift                             2         /* Shift value */
                                                                     /* Gain =  8.000000 dB */
 #define HPF_Fs44100_Gain8_A0                            15634         /* Floating point value 0.477113 */
-#define HPF_Fs44100_Gain8_A1                            -9278         /* Floating point value -0.283154 */
+#define HPF_Fs44100_Gain8_A1                           (-9278)        /* Floating point value -0.283154 */
 #define HPF_Fs44100_Gain8_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain8_B1                            -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain8_B1                           (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain8_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain8_Shift                             2         /* Shift value */
                                                                     /* Gain =  9.000000 dB */
 #define HPF_Fs44100_Gain9_A0                            17154         /* Floating point value 0.523496 */
-#define HPF_Fs44100_Gain9_A1                           -10798         /* Floating point value -0.329537 */
+#define HPF_Fs44100_Gain9_A1                          (-10798)        /* Floating point value -0.329537 */
 #define HPF_Fs44100_Gain9_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain9_B1                            -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain9_B1                           (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain9_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain9_Shift                             2         /* Shift value */
                                                                     /* Gain =  10.000000 dB */
 #define HPF_Fs44100_Gain10_A0                           18859         /* Floating point value 0.575539 */
-#define HPF_Fs44100_Gain10_A1                          -12504         /* Floating point value -0.381580 */
+#define HPF_Fs44100_Gain10_A1                         (-12504)        /* Floating point value -0.381580 */
 #define HPF_Fs44100_Gain10_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain10_B1                           -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain10_B1                          (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain10_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain10_Shift                            2         /* Shift value */
                                                                     /* Gain =  11.000000 dB */
 #define HPF_Fs44100_Gain11_A0                           20773         /* Floating point value 0.633932 */
-#define HPF_Fs44100_Gain11_A1                          -14417         /* Floating point value -0.439973 */
+#define HPF_Fs44100_Gain11_A1                         (-14417)        /* Floating point value -0.439973 */
 #define HPF_Fs44100_Gain11_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain11_B1                           -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain11_B1                          (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain11_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain11_Shift                            2         /* Shift value */
                                                                     /* Gain =  12.000000 dB */
 #define HPF_Fs44100_Gain12_A0                           22920         /* Floating point value 0.699450 */
-#define HPF_Fs44100_Gain12_A1                          -16564         /* Floating point value -0.505491 */
+#define HPF_Fs44100_Gain12_A1                         (-16564)        /* Floating point value -0.505491 */
 #define HPF_Fs44100_Gain12_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain12_B1                           -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain12_B1                          (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain12_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain12_Shift                            2         /* Shift value */
                                                                     /* Gain =  13.000000 dB */
 #define HPF_Fs44100_Gain13_A0                           12694         /* Floating point value 0.387399 */
-#define HPF_Fs44100_Gain13_A1                           -9509         /* Floating point value -0.290189 */
+#define HPF_Fs44100_Gain13_A1                          (-9509)        /* Floating point value -0.290189 */
 #define HPF_Fs44100_Gain13_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain13_B1                           -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain13_B1                          (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain13_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain13_Shift                            3         /* Shift value */
                                                                     /* Gain =  14.000000 dB */
 #define HPF_Fs44100_Gain14_A0                           14049         /* Floating point value 0.428738 */
-#define HPF_Fs44100_Gain14_A1                          -10864         /* Floating point value -0.331528 */
+#define HPF_Fs44100_Gain14_A1                         (-10864)        /* Floating point value -0.331528 */
 #define HPF_Fs44100_Gain14_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain14_B1                           -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain14_B1                          (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain14_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain14_Shift                            3         /* Shift value */
                                                                     /* Gain =  15.000000 dB */
 #define HPF_Fs44100_Gain15_A0                           15569         /* Floating point value 0.475121 */
-#define HPF_Fs44100_Gain15_A1                          -12383         /* Floating point value -0.377912 */
+#define HPF_Fs44100_Gain15_A1                         (-12383)        /* Floating point value -0.377912 */
 #define HPF_Fs44100_Gain15_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs44100_Gain15_B1                           -7173         /* Floating point value -0.218894 */
+#define HPF_Fs44100_Gain15_B1                          (-7173)        /* Floating point value -0.218894 */
 #define HPF_Fs44100_Gain15_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs44100_Gain15_Shift                            3         /* Shift value */
 
@@ -465,107 +465,107 @@
 /* Coefficients for sample rate 48000Hz */
                                                                     /* Gain =  1.000000 dB */
 #define HPF_Fs48000_Gain1_A0                            17491         /* Floating point value 0.533777 */
-#define HPF_Fs48000_Gain1_A1                            -5606         /* Floating point value -0.171082 */
+#define HPF_Fs48000_Gain1_A1                           (-5606)        /* Floating point value -0.171082 */
 #define HPF_Fs48000_Gain1_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain1_B1                            -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain1_B1                           (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain1_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain1_Shift                             1         /* Shift value */
                                                                     /* Gain =  2.000000 dB */
 #define HPF_Fs48000_Gain2_A0                            18900         /* Floating point value 0.576779 */
-#define HPF_Fs48000_Gain2_A1                            -7015         /* Floating point value -0.214085 */
+#define HPF_Fs48000_Gain2_A1                           (-7015)        /* Floating point value -0.214085 */
 #define HPF_Fs48000_Gain2_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain2_B1                            -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain2_B1                           (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain2_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain2_Shift                             1         /* Shift value */
                                                                     /* Gain =  3.000000 dB */
 #define HPF_Fs48000_Gain3_A0                            20481         /* Floating point value 0.625029 */
-#define HPF_Fs48000_Gain3_A1                            -8596         /* Floating point value -0.262335 */
+#define HPF_Fs48000_Gain3_A1                           (-8596)        /* Floating point value -0.262335 */
 #define HPF_Fs48000_Gain3_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain3_B1                            -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain3_B1                           (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain3_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain3_Shift                             1         /* Shift value */
                                                                     /* Gain =  4.000000 dB */
 #define HPF_Fs48000_Gain4_A0                            22255         /* Floating point value 0.679167 */
-#define HPF_Fs48000_Gain4_A1                           -10370         /* Floating point value -0.316472 */
+#define HPF_Fs48000_Gain4_A1                          (-10370)        /* Floating point value -0.316472 */
 #define HPF_Fs48000_Gain4_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain4_B1                            -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain4_B1                           (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain4_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain4_Shift                             1         /* Shift value */
                                                                     /* Gain =  5.000000 dB */
 #define HPF_Fs48000_Gain5_A0                            24245         /* Floating point value 0.739910 */
-#define HPF_Fs48000_Gain5_A1                           -12361         /* Floating point value -0.377215 */
+#define HPF_Fs48000_Gain5_A1                          (-12361)        /* Floating point value -0.377215 */
 #define HPF_Fs48000_Gain5_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain5_B1                            -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain5_B1                           (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain5_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain5_Shift                             1         /* Shift value */
                                                                     /* Gain =  6.000000 dB */
 #define HPF_Fs48000_Gain6_A0                            26479         /* Floating point value 0.808065 */
-#define HPF_Fs48000_Gain6_A1                           -14594         /* Floating point value -0.445370 */
+#define HPF_Fs48000_Gain6_A1                          (-14594)        /* Floating point value -0.445370 */
 #define HPF_Fs48000_Gain6_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain6_B1                            -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain6_B1                           (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain6_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain6_Shift                             1         /* Shift value */
                                                                     /* Gain =  7.000000 dB */
 #define HPF_Fs48000_Gain7_A0                            14527         /* Floating point value 0.443318 */
-#define HPF_Fs48000_Gain7_A1                            -8570         /* Floating point value -0.261540 */
+#define HPF_Fs48000_Gain7_A1                           (-8570)        /* Floating point value -0.261540 */
 #define HPF_Fs48000_Gain7_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain7_B1                            -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain7_B1                           (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain7_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain7_Shift                             2         /* Shift value */
                                                                     /* Gain =  8.000000 dB */
 #define HPF_Fs48000_Gain8_A0                            15936         /* Floating point value 0.486321 */
-#define HPF_Fs48000_Gain8_A1                            -9979         /* Floating point value -0.304543 */
+#define HPF_Fs48000_Gain8_A1                           (-9979)        /* Floating point value -0.304543 */
 #define HPF_Fs48000_Gain8_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain8_B1                            -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain8_B1                           (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain8_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain8_Shift                             2         /* Shift value */
                                                                     /* Gain =  9.000000 dB */
 #define HPF_Fs48000_Gain9_A0                            17517         /* Floating point value 0.534571 */
-#define HPF_Fs48000_Gain9_A1                           -11560         /* Floating point value -0.352793 */
+#define HPF_Fs48000_Gain9_A1                          (-11560)        /* Floating point value -0.352793 */
 #define HPF_Fs48000_Gain9_A2                                0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain9_B1                            -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain9_B1                           (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain9_B2                                0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain9_Shift                             2         /* Shift value */
                                                                     /* Gain =  10.000000 dB */
 #define HPF_Fs48000_Gain10_A0                           19291         /* Floating point value 0.588708 */
-#define HPF_Fs48000_Gain10_A1                          -13334         /* Floating point value -0.406930 */
+#define HPF_Fs48000_Gain10_A1                         (-13334)        /* Floating point value -0.406930 */
 #define HPF_Fs48000_Gain10_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain10_B1                           -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain10_B1                          (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain10_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain10_Shift                            2         /* Shift value */
                                                                     /* Gain =  11.000000 dB */
 #define HPF_Fs48000_Gain11_A0                           21281         /* Floating point value 0.649452 */
-#define HPF_Fs48000_Gain11_A1                          -15325         /* Floating point value -0.467674 */
+#define HPF_Fs48000_Gain11_A1                         (-15325)        /* Floating point value -0.467674 */
 #define HPF_Fs48000_Gain11_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain11_B1                           -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain11_B1                          (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain11_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain11_Shift                            2         /* Shift value */
                                                                     /* Gain =  12.000000 dB */
 #define HPF_Fs48000_Gain12_A0                           23515         /* Floating point value 0.717607 */
-#define HPF_Fs48000_Gain12_A1                          -17558         /* Floating point value -0.535829 */
+#define HPF_Fs48000_Gain12_A1                         (-17558)        /* Floating point value -0.535829 */
 #define HPF_Fs48000_Gain12_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain12_B1                           -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain12_B1                          (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain12_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain12_Shift                            2         /* Shift value */
                                                                     /* Gain =  13.000000 dB */
 #define HPF_Fs48000_Gain13_A0                           13041         /* Floating point value 0.397982 */
-#define HPF_Fs48000_Gain13_A1                          -10056         /* Floating point value -0.306877 */
+#define HPF_Fs48000_Gain13_A1                         (-10056)        /* Floating point value -0.306877 */
 #define HPF_Fs48000_Gain13_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain13_B1                           -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain13_B1                          (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain13_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain13_Shift                            3         /* Shift value */
                                                                     /* Gain =  14.000000 dB */
 #define HPF_Fs48000_Gain14_A0                           14450         /* Floating point value 0.440984 */
-#define HPF_Fs48000_Gain14_A1                          -11465         /* Floating point value -0.349880 */
+#define HPF_Fs48000_Gain14_A1                         (-11465)        /* Floating point value -0.349880 */
 #define HPF_Fs48000_Gain14_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain14_B1                           -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain14_B1                          (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain14_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain14_Shift                            3         /* Shift value */
                                                                     /* Gain =  15.000000 dB */
 #define HPF_Fs48000_Gain15_A0                           16031         /* Floating point value 0.489234 */
-#define HPF_Fs48000_Gain15_A1                          -13046         /* Floating point value -0.398130 */
+#define HPF_Fs48000_Gain15_A1                         (-13046)        /* Floating point value -0.398130 */
 #define HPF_Fs48000_Gain15_A2                               0         /* Floating point value 0.000000 */
-#define HPF_Fs48000_Gain15_B1                           -8780         /* Floating point value -0.267949 */
+#define HPF_Fs48000_Gain15_B1                          (-8780)        /* Floating point value -0.267949 */
 #define HPF_Fs48000_Gain15_B2                               0         /* Floating point value 0.000000 */
 #define HPF_Fs48000_Gain15_Shift                            3         /* Shift value */
 
diff --git a/media/libeffects/lvm/lib/Bundle/src/LVM_Private.h b/media/libeffects/lvm/lib/Bundle/src/LVM_Private.h
index 2d1cf42..2e85f77 100644
--- a/media/libeffects/lvm/lib/Bundle/src/LVM_Private.h
+++ b/media/libeffects/lvm/lib/Bundle/src/LVM_Private.h
@@ -81,7 +81,7 @@
 #define LVM_TE_MIN_EFFECTLEVEL          0         /*TE Minimum EffectLevel*/
 #define LVM_TE_MAX_EFFECTLEVEL          15        /*TE Maximum Effect level*/
 
-#define LVM_VC_MIN_EFFECTLEVEL          -96       /*VC Minimum EffectLevel*/
+#define LVM_VC_MIN_EFFECTLEVEL          (-96)     /*VC Minimum EffectLevel*/
 #define LVM_VC_MAX_EFFECTLEVEL          0         /*VC Maximum Effect level*/
 
 #define LVM_BE_MIN_EFFECTLEVEL          0         /*BE Minimum EffectLevel*/
@@ -89,7 +89,7 @@
 
 #define LVM_EQNB_MIN_BAND_FREQ          20        /*EQNB Minimum Band Frequency*/
 #define LVM_EQNB_MAX_BAND_FREQ          24000     /*EQNB Maximum Band Frequency*/
-#define LVM_EQNB_MIN_BAND_GAIN          -15       /*EQNB Minimum Band Frequency*/
+#define LVM_EQNB_MIN_BAND_GAIN          (-15)     /*EQNB Minimum Band Frequency*/
 #define LVM_EQNB_MAX_BAND_GAIN          15        /*EQNB Maximum Band Frequency*/
 #define LVM_EQNB_MIN_QFACTOR            25        /*EQNB Minimum Q Factor*/
 #define LVM_EQNB_MAX_QFACTOR            1200      /*EQNB Maximum Q Factor*/
@@ -103,7 +103,7 @@
 
 #define LVM_VC_MIXER_TIME              100       /*VC mixer time*/
 #define LVM_VC_BALANCE_MAX             96        /*VC balance max value*/
-#define LVM_VC_BALANCE_MIN             -96       /*VC balance min value*/
+#define LVM_VC_BALANCE_MIN             (-96)     /*VC balance min value*/
 
 /* Algorithm masks */
 #define LVM_CS_MASK                     1
diff --git a/media/libeffects/lvm/lib/Common/lib/LVM_Types.h b/media/libeffects/lvm/lib/Common/lib/LVM_Types.h
index 0c6fb25..68c55f7 100644
--- a/media/libeffects/lvm/lib/Common/lib/LVM_Types.h
+++ b/media/libeffects/lvm/lib/Common/lib/LVM_Types.h
@@ -73,10 +73,10 @@
 #define LVM_MEM_EXTERNAL        8                   /* External (slow) access memory */
 
 /* Platform specific */
-#define LVM_PERSISTENT          LVM_MEM_PARTITION0+LVM_MEM_PERSISTENT+LVM_MEM_INTERNAL
-#define LVM_PERSISTENT_DATA     LVM_MEM_PARTITION1+LVM_MEM_PERSISTENT+LVM_MEM_INTERNAL
-#define LVM_PERSISTENT_COEF     LVM_MEM_PARTITION2+LVM_MEM_PERSISTENT+LVM_MEM_INTERNAL
-#define LVM_SCRATCH             LVM_MEM_PARTITION3+LVM_MEM_SCRATCH+LVM_MEM_INTERNAL
+#define LVM_PERSISTENT          (LVM_MEM_PARTITION0+LVM_MEM_PERSISTENT+LVM_MEM_INTERNAL)
+#define LVM_PERSISTENT_DATA     (LVM_MEM_PARTITION1+LVM_MEM_PERSISTENT+LVM_MEM_INTERNAL)
+#define LVM_PERSISTENT_COEF     (LVM_MEM_PARTITION2+LVM_MEM_PERSISTENT+LVM_MEM_INTERNAL)
+#define LVM_SCRATCH             (LVM_MEM_PARTITION3+LVM_MEM_SCRATCH+LVM_MEM_INTERNAL)
 
 /****************************************************************************************/
 /*                                                                                      */
diff --git a/media/libeffects/lvm/lib/Eq/src/LVEQNB_Coeffs.h b/media/libeffects/lvm/lib/Eq/src/LVEQNB_Coeffs.h
index 87d7145..95212f2 100644
--- a/media/libeffects/lvm/lib/Eq/src/LVEQNB_Coeffs.h
+++ b/media/libeffects/lvm/lib/Eq/src/LVEQNB_Coeffs.h
@@ -27,21 +27,21 @@
 /************************************************************************************/
 
 #define LVEQNB_GAINSHIFT                                   11         /* As a power of 2 */
-#define LVEQNB_Gain_Neg15_dB                            -1684         /* Floating point value -0.822172 */
-#define LVEQNB_Gain_Neg14_dB                            -1639         /* Floating point value -0.800474 */
-#define LVEQNB_Gain_Neg13_dB                            -1590         /* Floating point value -0.776128 */
-#define LVEQNB_Gain_Neg12_dB                            -1534         /* Floating point value -0.748811 */
-#define LVEQNB_Gain_Neg11_dB                            -1471         /* Floating point value -0.718162 */
-#define LVEQNB_Gain_Neg10_dB                            -1400         /* Floating point value -0.683772 */
-#define LVEQNB_Gain_Neg9_dB                             -1321         /* Floating point value -0.645187 */
-#define LVEQNB_Gain_Neg8_dB                             -1233         /* Floating point value -0.601893 */
-#define LVEQNB_Gain_Neg7_dB                             -1133         /* Floating point value -0.553316 */
-#define LVEQNB_Gain_Neg6_dB                             -1022         /* Floating point value -0.498813 */
-#define LVEQNB_Gain_Neg5_dB                              -896         /* Floating point value -0.437659 */
-#define LVEQNB_Gain_Neg4_dB                              -756         /* Floating point value -0.369043 */
-#define LVEQNB_Gain_Neg3_dB                              -598         /* Floating point value -0.292054 */
-#define LVEQNB_Gain_Neg2_dB                              -421         /* Floating point value -0.205672 */
-#define LVEQNB_Gain_Neg1_dB                              -223         /* Floating point value -0.108749 */
+#define LVEQNB_Gain_Neg15_dB                           (-1684)        /* Floating point value -0.822172 */
+#define LVEQNB_Gain_Neg14_dB                           (-1639)        /* Floating point value -0.800474 */
+#define LVEQNB_Gain_Neg13_dB                           (-1590)        /* Floating point value -0.776128 */
+#define LVEQNB_Gain_Neg12_dB                           (-1534)        /* Floating point value -0.748811 */
+#define LVEQNB_Gain_Neg11_dB                           (-1471)        /* Floating point value -0.718162 */
+#define LVEQNB_Gain_Neg10_dB                           (-1400)        /* Floating point value -0.683772 */
+#define LVEQNB_Gain_Neg9_dB                            (-1321)        /* Floating point value -0.645187 */
+#define LVEQNB_Gain_Neg8_dB                            (-1233)        /* Floating point value -0.601893 */
+#define LVEQNB_Gain_Neg7_dB                            (-1133)        /* Floating point value -0.553316 */
+#define LVEQNB_Gain_Neg6_dB                            (-1022)        /* Floating point value -0.498813 */
+#define LVEQNB_Gain_Neg5_dB                             (-896)        /* Floating point value -0.437659 */
+#define LVEQNB_Gain_Neg4_dB                             (-756)        /* Floating point value -0.369043 */
+#define LVEQNB_Gain_Neg3_dB                             (-598)        /* Floating point value -0.292054 */
+#define LVEQNB_Gain_Neg2_dB                             (-421)        /* Floating point value -0.205672 */
+#define LVEQNB_Gain_Neg1_dB                             (-223)        /* Floating point value -0.108749 */
 #define LVEQNB_Gain_0_dB                                    0         /* Floating point value 0.000000 */
 #define LVEQNB_Gain_1_dB                                  250         /* Floating point value 0.122018 */
 #define LVEQNB_Gain_2_dB                                  530         /* Floating point value 0.258925 */
diff --git a/media/libeffects/lvm/lib/SpectrumAnalyzer/src/LVPSA_Private.h b/media/libeffects/lvm/lib/SpectrumAnalyzer/src/LVPSA_Private.h
index 1d8bedd..03522fb 100644
--- a/media/libeffects/lvm/lib/SpectrumAnalyzer/src/LVPSA_Private.h
+++ b/media/libeffects/lvm/lib/SpectrumAnalyzer/src/LVPSA_Private.h
@@ -52,7 +52,7 @@
 #define LVPSA_NBANDSMIN                  1      /* Minimum number of frequency band                                 */
 #define LVPSA_NBANDSMAX                  30     /* Maximum number of frequency band                                 */
 #define LVPSA_MAXCENTERFREQ              20000  /* Maximum possible center frequency                                */
-#define LVPSA_MINPOSTGAIN                -15    /* Minimum possible post gain                                       */
+#define LVPSA_MINPOSTGAIN              (-15)    /* Minimum possible post gain                                       */
 #define LVPSA_MAXPOSTGAIN                15     /* Maximum possible post gain                                       */
 #define LVPSA_MINQFACTOR                 25     /* Minimum possible Q factor                                        */
 #define LVPSA_MAXQFACTOR                 1200   /* Maximum possible Q factor                                        */
diff --git a/media/libeffects/lvm/lib/StereoWidening/src/LVCS_Headphone_Coeffs.h b/media/libeffects/lvm/lib/StereoWidening/src/LVCS_Headphone_Coeffs.h
index 1d55281..3e640cb 100644
--- a/media/libeffects/lvm/lib/StereoWidening/src/LVCS_Headphone_Coeffs.h
+++ b/media/libeffects/lvm/lib/StereoWidening/src/LVCS_Headphone_Coeffs.h
@@ -27,127 +27,127 @@
 
 /* Stereo Enhancer coefficients for 8000 Hz sample rate, scaled with 0.161258 */
 #define CS_MIDDLE_8000_A0                          7462         /* Floating point value 0.227720 */
-#define CS_MIDDLE_8000_A1                         -7049         /* Floating point value -0.215125 */
+#define CS_MIDDLE_8000_A1                        (-7049)        /* Floating point value -0.215125 */
 #define CS_MIDDLE_8000_A2                             0         /* Floating point value 0.000000 */
-#define CS_MIDDLE_8000_B1                        -30209         /* Floating point value -0.921899 */
+#define CS_MIDDLE_8000_B1                       (-30209)        /* Floating point value -0.921899 */
 #define CS_MIDDLE_8000_B2                             0         /* Floating point value 0.000000 */
 #define CS_MIDDLE_8000_SCALE                         15
 #define CS_SIDE_8000_A0                           20036         /* Floating point value 0.611441 */
-#define CS_SIDE_8000_A1                          -12463         /* Floating point value -0.380344 */
-#define CS_SIDE_8000_A2                           -7573         /* Floating point value -0.231097 */
-#define CS_SIDE_8000_B1                          -20397         /* Floating point value -0.622470 */
-#define CS_SIDE_8000_B2                           -4285         /* Floating point value -0.130759 */
+#define CS_SIDE_8000_A1                         (-12463)        /* Floating point value -0.380344 */
+#define CS_SIDE_8000_A2                          (-7573)        /* Floating point value -0.231097 */
+#define CS_SIDE_8000_B1                         (-20397)        /* Floating point value -0.622470 */
+#define CS_SIDE_8000_B2                          (-4285)        /* Floating point value -0.130759 */
 #define CS_SIDE_8000_SCALE                           15
 
 /* Stereo Enhancer coefficients for 11025Hz sample rate, scaled with 0.162943 */
 #define CS_MIDDLE_11025_A0                         7564         /* Floating point value 0.230838 */
-#define CS_MIDDLE_11025_A1                        -7260         /* Floating point value -0.221559 */
+#define CS_MIDDLE_11025_A1                       (-7260)        /* Floating point value -0.221559 */
 #define CS_MIDDLE_11025_A2                            0         /* Floating point value 0.000000 */
-#define CS_MIDDLE_11025_B1                       -30902         /* Floating point value -0.943056 */
+#define CS_MIDDLE_11025_B1                      (-30902)        /* Floating point value -0.943056 */
 #define CS_MIDDLE_11025_B2                            0         /* Floating point value 0.000000 */
 #define CS_MIDDLE_11025_SCALE                        15
 #define CS_SIDE_11025_A0                          18264         /* Floating point value 0.557372 */
-#define CS_SIDE_11025_A1                         -12828         /* Floating point value -0.391490 */
-#define CS_SIDE_11025_A2                          -5436         /* Floating point value -0.165881 */
-#define CS_SIDE_11025_B1                         -28856         /* Floating point value -0.880608 */
+#define CS_SIDE_11025_A1                        (-12828)        /* Floating point value -0.391490 */
+#define CS_SIDE_11025_A2                         (-5436)        /* Floating point value -0.165881 */
+#define CS_SIDE_11025_B1                        (-28856)        /* Floating point value -0.880608 */
 #define CS_SIDE_11025_B2                           1062         /* Floating point value 0.032397 */
 #define CS_SIDE_11025_SCALE                          15
 
 /* Stereo Enhancer coefficients for 12000Hz sample rate, scaled with 0.162191 */
 #define CS_MIDDLE_12000_A0                         7534         /* Floating point value 0.229932 */
-#define CS_MIDDLE_12000_A1                        -7256         /* Floating point value -0.221436 */
+#define CS_MIDDLE_12000_A1                       (-7256)        /* Floating point value -0.221436 */
 #define CS_MIDDLE_12000_A2                            0         /* Floating point value 0.000000 */
-#define CS_MIDDLE_12000_B1                       -31051         /* Floating point value -0.947616 */
+#define CS_MIDDLE_12000_B1                      (-31051)        /* Floating point value -0.947616 */
 #define CS_MIDDLE_12000_B2                            0         /* Floating point value 0.000000 */
 #define CS_MIDDLE_12000_SCALE                        15
 #define CS_SIDE_12000_A0                          18298         /* Floating point value 0.558398 */
-#define CS_SIDE_12000_A1                         -12852         /* Floating point value -0.392211 */
-#define CS_SIDE_12000_A2                          -5446         /* Floating point value -0.166187 */
-#define CS_SIDE_12000_B1                         -29247         /* Floating point value -0.892550 */
+#define CS_SIDE_12000_A1                        (-12852)        /* Floating point value -0.392211 */
+#define CS_SIDE_12000_A2                         (-5446)        /* Floating point value -0.166187 */
+#define CS_SIDE_12000_B1                        (-29247)        /* Floating point value -0.892550 */
 #define CS_SIDE_12000_B2                           1077         /* Floating point value 0.032856 */
 #define CS_SIDE_12000_SCALE                          15
 
 /* Stereo Enhancer coefficients for 16000Hz sample rate, scaled with 0.162371 */
 #define CS_MIDDLE_16000_A0                         7558         /* Floating point value 0.230638 */
-#define CS_MIDDLE_16000_A1                        -7348         /* Floating point value -0.224232 */
+#define CS_MIDDLE_16000_A1                       (-7348)        /* Floating point value -0.224232 */
 #define CS_MIDDLE_16000_A2                            0         /* Floating point value 0.000000 */
-#define CS_MIDDLE_16000_B1                       -31475         /* Floating point value -0.960550 */
+#define CS_MIDDLE_16000_B1                      (-31475)        /* Floating point value -0.960550 */
 #define CS_MIDDLE_16000_B2                            0         /* Floating point value 0.000000 */
 #define CS_MIDDLE_16000_SCALE                        15
 #define CS_SIDE_16000_A0                           8187         /* Floating point value 0.499695 */
-#define CS_SIDE_16000_A1                          -5825         /* Floating point value -0.355543 */
-#define CS_SIDE_16000_A2                          -2362         /* Floating point value -0.144152 */
-#define CS_SIDE_16000_B1                         -17216         /* Floating point value -1.050788 */
+#define CS_SIDE_16000_A1                         (-5825)        /* Floating point value -0.355543 */
+#define CS_SIDE_16000_A2                         (-2362)        /* Floating point value -0.144152 */
+#define CS_SIDE_16000_B1                        (-17216)        /* Floating point value -1.050788 */
 #define CS_SIDE_16000_B2                           2361         /* Floating point value 0.144104 */
 #define CS_SIDE_16000_SCALE                          14
 
 /* Stereo Enhancer coefficients for 22050Hz sample rate, scaled with 0.160781 */
 #define CS_MIDDLE_22050_A0                         7496         /* Floating point value 0.228749 */
-#define CS_MIDDLE_22050_A1                        -7344         /* Floating point value -0.224128 */
+#define CS_MIDDLE_22050_A1                       (-7344)        /* Floating point value -0.224128 */
 #define CS_MIDDLE_22050_A2                            0         /* Floating point value 0.000000 */
-#define CS_MIDDLE_22050_B1                       -31826         /* Floating point value -0.971262 */
+#define CS_MIDDLE_22050_B1                      (-31826)        /* Floating point value -0.971262 */
 #define CS_MIDDLE_22050_B2                            0         /* Floating point value 0.000000 */
 #define CS_MIDDLE_22050_SCALE                        15
 #define CS_SIDE_22050_A0                           7211         /* Floating point value 0.440112 */
-#define CS_SIDE_22050_A1                          -4278         /* Floating point value -0.261096 */
-#define CS_SIDE_22050_A2                          -2933         /* Floating point value -0.179016 */
-#define CS_SIDE_22050_B1                         -18297         /* Floating point value -1.116786 */
+#define CS_SIDE_22050_A1                         (-4278)        /* Floating point value -0.261096 */
+#define CS_SIDE_22050_A2                         (-2933)        /* Floating point value -0.179016 */
+#define CS_SIDE_22050_B1                        (-18297)        /* Floating point value -1.116786 */
 #define CS_SIDE_22050_B2                           2990         /* Floating point value 0.182507 */
 #define CS_SIDE_22050_SCALE                          14
 
 /* Stereo Enhancer coefficients for 24000Hz sample rate, scaled with 0.161882 */
 #define CS_MIDDLE_24000_A0                         7550         /* Floating point value 0.230395 */
-#define CS_MIDDLE_24000_A1                        -7409         /* Floating point value -0.226117 */
+#define CS_MIDDLE_24000_A1                       (-7409)        /* Floating point value -0.226117 */
 #define CS_MIDDLE_24000_A2                            0         /* Floating point value 0.000000 */
-#define CS_MIDDLE_24000_B1                       -31902         /* Floating point value -0.973573 */
+#define CS_MIDDLE_24000_B1                      (-31902)        /* Floating point value -0.973573 */
 #define CS_MIDDLE_24000_B2                            0         /* Floating point value 0.000000 */
 #define CS_MIDDLE_24000_SCALE                        15
 #define CS_SIDE_24000_A0                           6796         /* Floating point value 0.414770 */
-#define CS_SIDE_24000_A1                          -4705         /* Floating point value -0.287182 */
-#define CS_SIDE_24000_A2                          -2090         /* Floating point value -0.127588 */
-#define CS_SIDE_24000_B1                         -20147         /* Floating point value -1.229648 */
+#define CS_SIDE_24000_A1                         (-4705)        /* Floating point value -0.287182 */
+#define CS_SIDE_24000_A2                         (-2090)        /* Floating point value -0.127588 */
+#define CS_SIDE_24000_B1                        (-20147)        /* Floating point value -1.229648 */
 #define CS_SIDE_24000_B2                           4623         /* Floating point value 0.282177 */
 #define CS_SIDE_24000_SCALE                          14
 
 /* Stereo Enhancer coefficients for 32000Hz sample rate, scaled with 0.160322 */
 #define CS_MIDDLE_32000_A0                         7484         /* Floating point value 0.228400 */
-#define CS_MIDDLE_32000_A1                        -7380         /* Floating point value -0.225214 */
+#define CS_MIDDLE_32000_A1                       (-7380)        /* Floating point value -0.225214 */
 #define CS_MIDDLE_32000_A2                            0         /* Floating point value 0.000000 */
-#define CS_MIDDLE_32000_B1                       -32117         /* Floating point value -0.980126 */
+#define CS_MIDDLE_32000_B1                      (-32117)        /* Floating point value -0.980126 */
 #define CS_MIDDLE_32000_B2                            0         /* Floating point value 0.000000 */
 #define CS_MIDDLE_32000_SCALE                        15
 #define CS_SIDE_32000_A0                           5973         /* Floating point value 0.364579 */
-#define CS_SIDE_32000_A1                          -3397         /* Floating point value -0.207355 */
-#define CS_SIDE_32000_A2                          -2576         /* Floating point value -0.157224 */
-#define CS_SIDE_32000_B1                         -20877         /* Floating point value -1.274231 */
+#define CS_SIDE_32000_A1                         (-3397)        /* Floating point value -0.207355 */
+#define CS_SIDE_32000_A2                         (-2576)        /* Floating point value -0.157224 */
+#define CS_SIDE_32000_B1                        (-20877)        /* Floating point value -1.274231 */
 #define CS_SIDE_32000_B2                           5120         /* Floating point value 0.312495 */
 #define CS_SIDE_32000_SCALE                          14
 
 /* Stereo Enhancer coefficients for 44100Hz sample rate, scaled with 0.163834 */
 #define CS_MIDDLE_44100_A0                         7654         /* Floating point value 0.233593 */
-#define CS_MIDDLE_44100_A1                        -7577         /* Floating point value -0.231225 */
+#define CS_MIDDLE_44100_A1                       (-7577)        /* Floating point value -0.231225 */
 #define CS_MIDDLE_44100_A2                            0         /* Floating point value 0.000000 */
-#define CS_MIDDLE_44100_B1                       -32294         /* Floating point value -0.985545 */
+#define CS_MIDDLE_44100_B1                      (-32294)        /* Floating point value -0.985545 */
 #define CS_MIDDLE_44100_B2                            0         /* Floating point value 0.000000 */
 #define CS_MIDDLE_44100_SCALE                        15
 #define CS_SIDE_44100_A0                           4662         /* Floating point value 0.284573 */
-#define CS_SIDE_44100_A1                          -4242         /* Floating point value -0.258910 */
-#define CS_SIDE_44100_A2                           -420         /* Floating point value -0.025662 */
-#define CS_SIDE_44100_B1                         -25760         /* Floating point value -1.572248 */
+#define CS_SIDE_44100_A1                         (-4242)        /* Floating point value -0.258910 */
+#define CS_SIDE_44100_A2                          (-420)        /* Floating point value -0.025662 */
+#define CS_SIDE_44100_B1                        (-25760)        /* Floating point value -1.572248 */
 #define CS_SIDE_44100_B2                           9640         /* Floating point value 0.588399 */
 #define CS_SIDE_44100_SCALE                          14
 
 /* Stereo Enhancer coefficients for 48000Hz sample rate, scaled with 0.164402 */
 #define CS_MIDDLE_48000_A0                         7682         /* Floating point value 0.234445 */
-#define CS_MIDDLE_48000_A1                        -7611         /* Floating point value -0.232261 */
+#define CS_MIDDLE_48000_A1                       (-7611)        /* Floating point value -0.232261 */
 #define CS_MIDDLE_48000_A2                            0         /* Floating point value 0.000000 */
-#define CS_MIDDLE_48000_B1                       -32333         /* Floating point value -0.986713 */
+#define CS_MIDDLE_48000_B1                      (-32333)        /* Floating point value -0.986713 */
 #define CS_MIDDLE_48000_B2                            0         /* Floating point value 0.000000 */
 #define CS_MIDDLE_48000_SCALE                        15
 #define CS_SIDE_48000_A0                           4466         /* Floating point value 0.272606 */
-#define CS_SIDE_48000_A1                          -4374         /* Floating point value -0.266952 */
-#define CS_SIDE_48000_A2                            -93         /* Floating point value -0.005654 */
-#define CS_SIDE_48000_B1                         -26495         /* Floating point value -1.617141 */
+#define CS_SIDE_48000_A1                         (-4374)        /* Floating point value -0.266952 */
+#define CS_SIDE_48000_A2                           (-93)        /* Floating point value -0.005654 */
+#define CS_SIDE_48000_B1                        (-26495)        /* Floating point value -1.617141 */
 #define CS_SIDE_48000_B2                          10329         /* Floating point value 0.630405 */
 #define CS_SIDE_48000_SCALE                          14
 
@@ -171,73 +171,73 @@
 
 /* Reverb coefficients for 8000 Hz sample rate, scaled with 1.038030 */
 #define CS_REVERB_8000_A0                         21865         /* Floating point value 0.667271 */
-#define CS_REVERB_8000_A1                        -21865         /* Floating point value -0.667271 */
+#define CS_REVERB_8000_A1                       (-21865)        /* Floating point value -0.667271 */
 #define CS_REVERB_8000_A2                             0         /* Floating point value 0.000000 */
-#define CS_REVERB_8000_B1                        -21895         /* Floating point value -0.668179 */
+#define CS_REVERB_8000_B1                       (-21895)        /* Floating point value -0.668179 */
 #define CS_REVERB_8000_B2                             0         /* Floating point value 0.000000 */
 #define CS_REVERB_8000_SCALE                         15
 
 /* Reverb coefficients for 11025Hz sample rate, scaled with 1.038030 */
 #define CS_REVERB_11025_A0                        22926         /* Floating point value 0.699638 */
-#define CS_REVERB_11025_A1                       -22926         /* Floating point value -0.699638 */
+#define CS_REVERB_11025_A1                      (-22926)        /* Floating point value -0.699638 */
 #define CS_REVERB_11025_A2                            0         /* Floating point value 0.000000 */
-#define CS_REVERB_11025_B1                       -24546         /* Floating point value -0.749096 */
+#define CS_REVERB_11025_B1                      (-24546)        /* Floating point value -0.749096 */
 #define CS_REVERB_11025_B2                            0         /* Floating point value 0.000000 */
 #define CS_REVERB_11025_SCALE                        15
 
 /* Reverb coefficients for 12000Hz sample rate, scaled with 1.038030 */
 #define CS_REVERB_12000_A0                        23165         /* Floating point value 0.706931 */
-#define CS_REVERB_12000_A1                       -23165         /* Floating point value -0.706931 */
+#define CS_REVERB_12000_A1                      (-23165)        /* Floating point value -0.706931 */
 #define CS_REVERB_12000_A2                            0         /* Floating point value 0.000000 */
-#define CS_REVERB_12000_B1                       -25144         /* Floating point value -0.767327 */
+#define CS_REVERB_12000_B1                      (-25144)        /* Floating point value -0.767327 */
 #define CS_REVERB_12000_B2                            0         /* Floating point value 0.000000 */
 #define CS_REVERB_12000_SCALE                        15
 
 /* Reverb coefficients for 16000Hz sample rate, scaled with 1.038030 */
 #define CS_REVERB_16000_A0                        23864         /* Floating point value 0.728272 */
-#define CS_REVERB_16000_A1                       -23864         /* Floating point value -0.728272 */
+#define CS_REVERB_16000_A1                      (-23864)        /* Floating point value -0.728272 */
 #define CS_REVERB_16000_A2                            0         /* Floating point value 0.000000 */
-#define CS_REVERB_16000_B1                       -26892         /* Floating point value -0.820679 */
+#define CS_REVERB_16000_B1                      (-26892)        /* Floating point value -0.820679 */
 #define CS_REVERB_16000_B2                            0         /* Floating point value 0.000000 */
 #define CS_REVERB_16000_SCALE                        15
 
 /* Reverb coefficients for 22050Hz sample rate, scaled with 1.038030 */
 #define CS_REVERB_22050_A0                        16921         /* Floating point value 0.516396 */
 #define CS_REVERB_22050_A1                            0         /* Floating point value 0.000000 */
-#define CS_REVERB_22050_A2                       -16921         /* Floating point value -0.516396 */
-#define CS_REVERB_22050_B1                       -16991         /* Floating point value -0.518512 */
-#define CS_REVERB_22050_B2                        -9535         /* Floating point value -0.290990 */
+#define CS_REVERB_22050_A2                      (-16921)        /* Floating point value -0.516396 */
+#define CS_REVERB_22050_B1                      (-16991)        /* Floating point value -0.518512 */
+#define CS_REVERB_22050_B2                       (-9535)        /* Floating point value -0.290990 */
 #define CS_REVERB_22050_SCALE                        15
 
 /* Reverb coefficients for 24000Hz sample rate, scaled with 1.038030 */
 #define CS_REVERB_24000_A0                        15714         /* Floating point value 0.479565 */
 #define CS_REVERB_24000_A1                            0         /* Floating point value 0.000000 */
-#define CS_REVERB_24000_A2                       -15714         /* Floating point value -0.479565 */
-#define CS_REVERB_24000_B1                       -20898         /* Floating point value -0.637745 */
-#define CS_REVERB_24000_B2                        -6518         /* Floating point value -0.198912 */
+#define CS_REVERB_24000_A2                      (-15714)        /* Floating point value -0.479565 */
+#define CS_REVERB_24000_B1                      (-20898)        /* Floating point value -0.637745 */
+#define CS_REVERB_24000_B2                       (-6518)        /* Floating point value -0.198912 */
 #define CS_REVERB_24000_SCALE                        15
 
 /* Reverb coefficients for 32000Hz sample rate, scaled with 1.038030 */
 #define CS_REVERB_32000_A0                        12463         /* Floating point value 0.380349 */
 #define CS_REVERB_32000_A1                            0         /* Floating point value 0.000000 */
-#define CS_REVERB_32000_A2                       -12463         /* Floating point value -0.380349 */
-#define CS_REVERB_32000_B1                       -31158         /* Floating point value -0.950873 */
+#define CS_REVERB_32000_A2                      (-12463)        /* Floating point value -0.380349 */
+#define CS_REVERB_32000_B1                      (-31158)        /* Floating point value -0.950873 */
 #define CS_REVERB_32000_B2                         1610         /* Floating point value 0.049127 */
 #define CS_REVERB_32000_SCALE                        15
 
 /* Reverb coefficients for 44100Hz sample rate, scaled with 1.038030 */
 #define CS_REVERB_44100_A0                         4872         /* Floating point value 0.297389 */
 #define CS_REVERB_44100_A1                            0         /* Floating point value 0.000000 */
-#define CS_REVERB_44100_A2                        -4872         /* Floating point value -0.297389 */
-#define CS_REVERB_44100_B1                       -19668         /* Floating point value -1.200423 */
+#define CS_REVERB_44100_A2                       (-4872)        /* Floating point value -0.297389 */
+#define CS_REVERB_44100_B1                      (-19668)        /* Floating point value -1.200423 */
 #define CS_REVERB_44100_B2                         4203         /* Floating point value 0.256529 */
 #define CS_REVERB_44100_SCALE                        14
 
 /* Reverb coefficients for 48000Hz sample rate, scaled with 1.038030 */
 #define CS_REVERB_48000_A0                         4566         /* Floating point value 0.278661 */
 #define CS_REVERB_48000_A1                            0         /* Floating point value 0.000000 */
-#define CS_REVERB_48000_A2                        -4566         /* Floating point value -0.278661 */
-#define CS_REVERB_48000_B1                       -20562         /* Floating point value -1.254993 */
+#define CS_REVERB_48000_A2                       (-4566)        /* Floating point value -0.278661 */
+#define CS_REVERB_48000_B1                      (-20562)        /* Floating point value -1.254993 */
 #define CS_REVERB_48000_B2                         4970         /* Floating point value 0.303347 */
 #define CS_REVERB_48000_SCALE                        14
 
@@ -257,128 +257,128 @@
 
 /* Equaliser coefficients for 8000 Hz sample rate, CS scaled with 1.038497 and CSEX scaled with 0.775480 */
 #define CS_EQUALISER_8000_A0                      20698         /* Floating point value 1.263312 */
-#define CS_EQUALISER_8000_A1                      -9859         /* Floating point value -0.601748 */
-#define CS_EQUALISER_8000_A2                      -4599         /* Floating point value -0.280681 */
-#define CS_EQUALISER_8000_B1                      -7797         /* Floating point value -0.475865 */
-#define CS_EQUALISER_8000_B2                      -6687         /* Floating point value -0.408154 */
+#define CS_EQUALISER_8000_A1                     (-9859)        /* Floating point value -0.601748 */
+#define CS_EQUALISER_8000_A2                     (-4599)        /* Floating point value -0.280681 */
+#define CS_EQUALISER_8000_B1                     (-7797)        /* Floating point value -0.475865 */
+#define CS_EQUALISER_8000_B2                     (-6687)        /* Floating point value -0.408154 */
 #define CS_EQUALISER_8000_SCALE                      14
 #define CSEX_EQUALISER_8000_A0                    30912         /* Floating point value 0.943357 */
-#define CSEX_EQUALISER_8000_A1                   -14724         /* Floating point value -0.449345 */
-#define CSEX_EQUALISER_8000_A2                    -6868         /* Floating point value -0.209594 */
-#define CSEX_EQUALISER_8000_B1                   -15593         /* Floating point value -0.475865 */
-#define CSEX_EQUALISER_8000_B2                   -13374         /* Floating point value -0.408154 */
+#define CSEX_EQUALISER_8000_A1                  (-14724)        /* Floating point value -0.449345 */
+#define CSEX_EQUALISER_8000_A2                   (-6868)        /* Floating point value -0.209594 */
+#define CSEX_EQUALISER_8000_B1                  (-15593)        /* Floating point value -0.475865 */
+#define CSEX_EQUALISER_8000_B2                  (-13374)        /* Floating point value -0.408154 */
 #define CSEX_EQUALISER_8000_SCALE                    15
 
 /* Equaliser coefficients for 11025Hz sample rate, CS scaled with 1.027761 and CSEX scaled with 0.767463 */
 #define CS_EQUALISER_11025_A0                     18041         /* Floating point value 1.101145 */
 #define CS_EQUALISER_11025_A1                      2278         /* Floating point value 0.139020 */
-#define CS_EQUALISER_11025_A2                    -14163         /* Floating point value -0.864423 */
+#define CS_EQUALISER_11025_A2                   (-14163)        /* Floating point value -0.864423 */
 #define CS_EQUALISER_11025_B1                       402         /* Floating point value 0.024541 */
-#define CS_EQUALISER_11025_B2                    -14892         /* Floating point value -0.908930 */
+#define CS_EQUALISER_11025_B2                   (-14892)        /* Floating point value -0.908930 */
 #define CS_EQUALISER_11025_SCALE                     14
 #define CSEX_EQUALISER_11025_A0                   31983         /* Floating point value 0.976058 */
-#define CSEX_EQUALISER_11025_A1                  -22784         /* Floating point value -0.695326 */
-#define CSEX_EQUALISER_11025_A2                   -2976         /* Floating point value -0.090809 */
-#define CSEX_EQUALISER_11025_B1                  -20008         /* Floating point value -0.610594 */
-#define CSEX_EQUALISER_11025_B2                  -10196         /* Floating point value -0.311149 */
+#define CSEX_EQUALISER_11025_A1                 (-22784)        /* Floating point value -0.695326 */
+#define CSEX_EQUALISER_11025_A2                  (-2976)        /* Floating point value -0.090809 */
+#define CSEX_EQUALISER_11025_B1                 (-20008)        /* Floating point value -0.610594 */
+#define CSEX_EQUALISER_11025_B2                 (-10196)        /* Floating point value -0.311149 */
 #define CSEX_EQUALISER_11025_SCALE                   15
 
 /* Equaliser coefficients for 12000Hz sample rate, CS scaled with 1.032521 and CSEX scaled with 0.771017 */
 #define CS_EQUALISER_12000_A0                     20917         /* Floating point value 1.276661 */
-#define CS_EQUALISER_12000_A1                    -16671         /* Floating point value -1.017519 */
-#define CS_EQUALISER_12000_A2                      -723         /* Floating point value -0.044128 */
-#define CS_EQUALISER_12000_B1                    -11954         /* Floating point value -0.729616 */
-#define CS_EQUALISER_12000_B2                     -3351         /* Floating point value -0.204532 */
+#define CS_EQUALISER_12000_A1                   (-16671)        /* Floating point value -1.017519 */
+#define CS_EQUALISER_12000_A2                     (-723)        /* Floating point value -0.044128 */
+#define CS_EQUALISER_12000_B1                   (-11954)        /* Floating point value -0.729616 */
+#define CS_EQUALISER_12000_B2                    (-3351)        /* Floating point value -0.204532 */
 #define CS_EQUALISER_12000_SCALE                     14
 #define CSEX_EQUALISER_12000_A0                   16500         /* Floating point value 1.007095 */
-#define CSEX_EQUALISER_12000_A1                  -14285         /* Floating point value -0.871912 */
+#define CSEX_EQUALISER_12000_A1                 (-14285)        /* Floating point value -0.871912 */
 #define CSEX_EQUALISER_12000_A2                     381         /* Floating point value 0.023232 */
-#define CSEX_EQUALISER_12000_B1                  -12220         /* Floating point value -0.745857 */
-#define CSEX_EQUALISER_12000_B2                   -3099         /* Floating point value -0.189171 */
+#define CSEX_EQUALISER_12000_B1                 (-12220)        /* Floating point value -0.745857 */
+#define CSEX_EQUALISER_12000_B2                  (-3099)        /* Floating point value -0.189171 */
 #define CSEX_EQUALISER_12000_SCALE                   14
 
 /* Equaliser coefficients for 16000Hz sample rate, CS scaled with 1.031378 and CSEX scaled with 0.770164 */
 #define CS_EQUALISER_16000_A0                     20998         /* Floating point value 1.281629 */
-#define CS_EQUALISER_16000_A1                    -17627         /* Floating point value -1.075872 */
-#define CS_EQUALISER_16000_A2                      -678         /* Floating point value -0.041365 */
-#define CS_EQUALISER_16000_B1                    -11882         /* Floating point value -0.725239 */
-#define CS_EQUALISER_16000_B2                     -3676         /* Floating point value -0.224358 */
+#define CS_EQUALISER_16000_A1                   (-17627)        /* Floating point value -1.075872 */
+#define CS_EQUALISER_16000_A2                     (-678)        /* Floating point value -0.041365 */
+#define CS_EQUALISER_16000_B1                   (-11882)        /* Floating point value -0.725239 */
+#define CS_EQUALISER_16000_B2                    (-3676)        /* Floating point value -0.224358 */
 #define CS_EQUALISER_16000_SCALE                     14
 #define CSEX_EQUALISER_16000_A0                   17713         /* Floating point value 1.081091 */
-#define CSEX_EQUALISER_16000_A1                  -14208         /* Floating point value -0.867183 */
-#define CSEX_EQUALISER_16000_A2                   -1151         /* Floating point value -0.070247 */
-#define CSEX_EQUALISER_16000_B1                   -8440         /* Floating point value -0.515121 */
-#define CSEX_EQUALISER_16000_B2                   -6978         /* Floating point value -0.425893 */
+#define CSEX_EQUALISER_16000_A1                 (-14208)        /* Floating point value -0.867183 */
+#define CSEX_EQUALISER_16000_A2                  (-1151)        /* Floating point value -0.070247 */
+#define CSEX_EQUALISER_16000_B1                  (-8440)        /* Floating point value -0.515121 */
+#define CSEX_EQUALISER_16000_B2                  (-6978)        /* Floating point value -0.425893 */
 #define CSEX_EQUALISER_16000_SCALE                   14
 
 /* Equaliser coefficients for 22050Hz sample rate, CS scaled with 1.041576 and CSEX scaled with 0.777779 */
 #define CS_EQUALISER_22050_A0                     22751         /* Floating point value 1.388605 */
-#define CS_EQUALISER_22050_A1                    -21394         /* Floating point value -1.305799 */
+#define CS_EQUALISER_22050_A1                   (-21394)        /* Floating point value -1.305799 */
 #define CS_EQUALISER_22050_A2                       654         /* Floating point value 0.039922 */
-#define CS_EQUALISER_22050_B1                    -11788         /* Floating point value -0.719494 */
-#define CS_EQUALISER_22050_B2                     -3985         /* Floating point value -0.243245 */
+#define CS_EQUALISER_22050_B1                   (-11788)        /* Floating point value -0.719494 */
+#define CS_EQUALISER_22050_B2                    (-3985)        /* Floating point value -0.243245 */
 #define CS_EQUALISER_22050_SCALE                     14
 #define CSEX_EQUALISER_22050_A0                   20855         /* Floating point value 1.272910 */
-#define CSEX_EQUALISER_22050_A1                  -21971         /* Floating point value -1.341014 */
+#define CSEX_EQUALISER_22050_A1                 (-21971)        /* Floating point value -1.341014 */
 #define CSEX_EQUALISER_22050_A2                    2744         /* Floating point value 0.167462 */
-#define CSEX_EQUALISER_22050_B1                  -10063         /* Floating point value -0.614219 */
-#define CSEX_EQUALISER_22050_B2                   -5659         /* Floating point value -0.345384 */
+#define CSEX_EQUALISER_22050_B1                 (-10063)        /* Floating point value -0.614219 */
+#define CSEX_EQUALISER_22050_B2                  (-5659)        /* Floating point value -0.345384 */
 #define CSEX_EQUALISER_22050_SCALE                   14
 
 /* Equaliser coefficients for 24000Hz sample rate, CS scaled with 1.034495 and CSEX scaled with 0.772491 */
 #define CS_EQUALISER_24000_A0                     23099         /* Floating point value 1.409832 */
-#define CS_EQUALISER_24000_A1                    -23863         /* Floating point value -1.456506 */
+#define CS_EQUALISER_24000_A1                   (-23863)        /* Floating point value -1.456506 */
 #define CS_EQUALISER_24000_A2                      2481         /* Floating point value 0.151410 */
-#define CS_EQUALISER_24000_B1                    -13176         /* Floating point value -0.804201 */
-#define CS_EQUALISER_24000_B2                     -2683         /* Floating point value -0.163783 */
+#define CS_EQUALISER_24000_B1                   (-13176)        /* Floating point value -0.804201 */
+#define CS_EQUALISER_24000_B2                    (-2683)        /* Floating point value -0.163783 */
 #define CS_EQUALISER_24000_SCALE                     14
 #define CSEX_EQUALISER_24000_A0                   21286         /* Floating point value 1.299198 */
-#define CSEX_EQUALISER_24000_A1                  -23797         /* Floating point value -1.452447 */
+#define CSEX_EQUALISER_24000_A1                 (-23797)        /* Floating point value -1.452447 */
 #define CSEX_EQUALISER_24000_A2                    3940         /* Floating point value 0.240489 */
-#define CSEX_EQUALISER_24000_B1                  -10966         /* Floating point value -0.669303 */
-#define CSEX_EQUALISER_24000_B2                   -4833         /* Floating point value -0.294984 */
+#define CSEX_EQUALISER_24000_B1                 (-10966)        /* Floating point value -0.669303 */
+#define CSEX_EQUALISER_24000_B2                  (-4833)        /* Floating point value -0.294984 */
 #define CSEX_EQUALISER_24000_SCALE                   14
 
 /* Equaliser coefficients for 32000Hz sample rate, CS scaled with 1.044559 and CSEX scaled with 0.780006 */
 #define CS_EQUALISER_32000_A0                     25575         /* Floating point value 1.560988 */
-#define CS_EQUALISER_32000_A1                    -30765         /* Floating point value -1.877724 */
+#define CS_EQUALISER_32000_A1                   (-30765)        /* Floating point value -1.877724 */
 #define CS_EQUALISER_32000_A2                      6386         /* Floating point value 0.389741 */
-#define CS_EQUALISER_32000_B1                    -14867         /* Floating point value -0.907410 */
-#define CS_EQUALISER_32000_B2                     -1155         /* Floating point value -0.070489 */
+#define CS_EQUALISER_32000_B1                   (-14867)        /* Floating point value -0.907410 */
+#define CS_EQUALISER_32000_B2                    (-1155)        /* Floating point value -0.070489 */
 #define CS_EQUALISER_32000_SCALE                     14
 #define CSEX_EQUALISER_32000_A0                   14623         /* Floating point value 1.785049 */
-#define CSEX_EQUALISER_32000_A1                  -18297         /* Floating point value -2.233497 */
+#define CSEX_EQUALISER_32000_A1                 (-18297)        /* Floating point value -2.233497 */
 #define CSEX_EQUALISER_32000_A2                    4313         /* Floating point value 0.526431 */
-#define CSEX_EQUALISER_32000_B1                   -3653         /* Floating point value -0.445939 */
-#define CSEX_EQUALISER_32000_B2                   -4280         /* Floating point value -0.522446 */
+#define CSEX_EQUALISER_32000_B1                  (-3653)        /* Floating point value -0.445939 */
+#define CSEX_EQUALISER_32000_B2                  (-4280)        /* Floating point value -0.522446 */
 #define CSEX_EQUALISER_32000_SCALE                   13
 
 /* Equaliser coefficients for 44100Hz sample rate, CS scaled with 1.022170 and CSEX scaled with 0.763288 */
 #define CS_EQUALISER_44100_A0                     13304         /* Floating point value 1.623993 */
-#define CS_EQUALISER_44100_A1                    -18602         /* Floating point value -2.270743 */
+#define CS_EQUALISER_44100_A1                   (-18602)        /* Floating point value -2.270743 */
 #define CS_EQUALISER_44100_A2                      5643         /* Floating point value 0.688829 */
-#define CS_EQUALISER_44100_B1                     -9152         /* Floating point value -1.117190 */
+#define CS_EQUALISER_44100_B1                    (-9152)        /* Floating point value -1.117190 */
 #define CS_EQUALISER_44100_B2                      1067         /* Floating point value 0.130208 */
 #define CS_EQUALISER_44100_SCALE                     13
 #define CSEX_EQUALISER_44100_A0                   16616         /* Floating point value 2.028315 */
-#define CSEX_EQUALISER_44100_A1                  -23613         /* Floating point value -2.882459 */
+#define CSEX_EQUALISER_44100_A1                 (-23613)        /* Floating point value -2.882459 */
 #define CSEX_EQUALISER_44100_A2                    7410         /* Floating point value 0.904535 */
-#define CSEX_EQUALISER_44100_B1                   -4860         /* Floating point value -0.593308 */
-#define CSEX_EQUALISER_44100_B2                   -3161         /* Floating point value -0.385816 */
+#define CSEX_EQUALISER_44100_B1                  (-4860)        /* Floating point value -0.593308 */
+#define CSEX_EQUALISER_44100_B2                  (-3161)        /* Floating point value -0.385816 */
 #define CSEX_EQUALISER_44100_SCALE                   13
 
 /* Equaliser coefficients for 48000Hz sample rate, CS scaled with 1.018635 and CSEX scaled with 0.760648 */
 #define CS_EQUALISER_48000_A0                     13445         /* Floating point value 1.641177 */
-#define CS_EQUALISER_48000_A1                    -19372         /* Floating point value -2.364687 */
+#define CS_EQUALISER_48000_A1                   (-19372)        /* Floating point value -2.364687 */
 #define CS_EQUALISER_48000_A2                      6225         /* Floating point value 0.759910 */
-#define CS_EQUALISER_48000_B1                     -9558         /* Floating point value -1.166774 */
+#define CS_EQUALISER_48000_B1                    (-9558)        /* Floating point value -1.166774 */
 #define CS_EQUALISER_48000_B2                      1459         /* Floating point value 0.178074 */
 #define CS_EQUALISER_48000_SCALE                     13
 #define CSEX_EQUALISER_48000_A0                   17200         /* Floating point value 2.099655 */
-#define CSEX_EQUALISER_48000_A1                  -25110         /* Floating point value -3.065220 */
+#define CSEX_EQUALISER_48000_A1                 (-25110)        /* Floating point value -3.065220 */
 #define CSEX_EQUALISER_48000_A2                    8277         /* Floating point value 1.010417 */
-#define CSEX_EQUALISER_48000_B1                   -5194         /* Floating point value -0.634021 */
-#define CSEX_EQUALISER_48000_B2                   -2845         /* Floating point value -0.347332 */
+#define CSEX_EQUALISER_48000_B1                  (-5194)        /* Floating point value -0.634021 */
+#define CSEX_EQUALISER_48000_B2                  (-2845)        /* Floating point value -0.347332 */
 #define CSEX_EQUALISER_48000_SCALE                   13
 
 
diff --git a/media/libeffects/lvm/wrapper/Android.mk b/media/libeffects/lvm/wrapper/Android.mk
index 68ba34c..f92fb95 100644
--- a/media/libeffects/lvm/wrapper/Android.mk
+++ b/media/libeffects/lvm/wrapper/Android.mk
@@ -6,10 +6,12 @@
 
 LOCAL_ARM_MODE := arm
 
+LOCAL_VENDOR_MODULE := true
 LOCAL_SRC_FILES:= \
 	Bundle/EffectBundle.cpp
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_MODULE:= libbundlewrapper
 
@@ -18,6 +20,7 @@
 LOCAL_STATIC_LIBRARIES += libmusicbundle
 
 LOCAL_SHARED_LIBRARIES := \
+     liblog \
      libcutils \
      libdl
 
@@ -35,10 +38,12 @@
 
 LOCAL_ARM_MODE := arm
 
+LOCAL_VENDOR_MODULE := true
 LOCAL_SRC_FILES:= \
     Reverb/EffectReverb.cpp
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_MODULE:= libreverbwrapper
 
@@ -47,6 +52,7 @@
 LOCAL_STATIC_LIBRARIES += libreverb
 
 LOCAL_SHARED_LIBRARIES := \
+     liblog \
      libcutils \
      libdl
 
diff --git a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
index 8a248e5..1fddf9c 100644
--- a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
+++ b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
@@ -16,7 +16,7 @@
  */
 
 #define LOG_TAG "Bundle"
-#define ARRAY_SIZE(array) (sizeof array / sizeof array[0])
+#define ARRAY_SIZE(array) (sizeof (array) / sizeof (array)[0])
 //#define LOG_NDEBUG 0
 
 #include <assert.h>
@@ -25,11 +25,11 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include <cutils/log.h>
+#include <log/log.h>
+
 #include "EffectBundle.h"
 #include "math.h"
 
-
 // effect_handle_t interface implementation for bass boost
 extern "C" const struct effect_interface_s gLvmEffectInterface;
 
@@ -43,19 +43,19 @@
 #endif
 
 #define LVM_ERROR_CHECK(LvmStatus, callingFunc, calledFunc){\
-        if (LvmStatus == LVM_NULLADDRESS){\
+        if ((LvmStatus) == LVM_NULLADDRESS){\
             ALOGV("\tLVM_ERROR : Parameter error - "\
                     "null pointer returned by %s in %s\n\n\n\n", callingFunc, calledFunc);\
         }\
-        if (LvmStatus == LVM_ALIGNMENTERROR){\
+        if ((LvmStatus) == LVM_ALIGNMENTERROR){\
             ALOGV("\tLVM_ERROR : Parameter error - "\
                     "bad alignment returned by %s in %s\n\n\n\n", callingFunc, calledFunc);\
         }\
-        if (LvmStatus == LVM_INVALIDNUMSAMPLES){\
+        if ((LvmStatus) == LVM_INVALIDNUMSAMPLES){\
             ALOGV("\tLVM_ERROR : Parameter error - "\
                     "bad number of samples returned by %s in %s\n\n\n\n", callingFunc, calledFunc);\
         }\
-        if (LvmStatus == LVM_OUTOFRANGE){\
+        if ((LvmStatus) == LVM_OUTOFRANGE){\
             ALOGV("\tLVM_ERROR : Parameter error - "\
                     "out of range returned by %s in %s\n", callingFunc, calledFunc);\
         }\
@@ -369,8 +369,10 @@
             }
             delete pContext;
         }
-        *pHandle = (effect_handle_t)NULL;
+        if (pHandle != NULL)
+          *pHandle = (effect_handle_t)NULL;
     } else {
+      if (pHandle != NULL)
         *pHandle = (effect_handle_t)pContext;
     }
     ALOGV("\tEffectCreate end..\n\n");
@@ -530,8 +532,6 @@
 //----------------------------------------------------------------------------
 
 int LvmBundle_init(EffectContext *pContext){
-    int status;
-
     ALOGV("\tLvmBundle_init start");
 
     pContext->config.inputCfg.accessMode                    = EFFECT_BUFFER_ACCESS_READ;
@@ -745,7 +745,6 @@
                       int              frameCount,
                       EffectContext    *pContext){
 
-    LVM_ControlParams_t     ActiveParams;                           /* Current control Parameters */
     LVM_ReturnStatus_en     LvmStatus = LVM_SUCCESS;                /* Function call status */
     LVM_INT16               *pOutTmp;
 
@@ -1069,7 +1068,6 @@
 
 void LvmEffect_free(EffectContext *pContext){
     LVM_ReturnStatus_en     LvmStatus=LVM_SUCCESS;         /* Function call status */
-    LVM_ControlParams_t     params;                        /* Control Parameters */
     LVM_MemTab_t            MemTab;
 
     /* Free the algorithm memory */
@@ -1376,6 +1374,7 @@
     case AUDIO_DEVICE_OUT_WIRED_HEADSET:
     case AUDIO_DEVICE_OUT_WIRED_HEADPHONE:
     case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES:
+    case AUDIO_DEVICE_OUT_USB_HEADSET:
         return 0;
     default :
         return -EINVAL;
@@ -2545,7 +2544,7 @@
     } break;
 
     case EQ_PARAM_PROPERTIES: {
-        const uint32_t requiredValueSize = (2 + FIVEBAND_NUMBANDS) * sizeof(uint16_t);
+        constexpr uint32_t requiredValueSize = (2 + FIVEBAND_NUMBANDS) * sizeof(uint16_t);
         if (*pValueSize < requiredValueSize) {
             ALOGV("%s EQ_PARAM_PROPERTIES invalid *pValueSize %u", __func__, *pValueSize);
             status = -EINVAL;
@@ -2661,7 +2660,7 @@
         if (p[0] >= 0) {
             EqualizerSetPreset(pContext, (int)p[0]);
         } else {
-            const uint32_t valueSizeRequired = (2 + FIVEBAND_NUMBANDS) * sizeof(int16_t);
+            constexpr uint32_t valueSizeRequired = (2 + FIVEBAND_NUMBANDS) * sizeof(int16_t);
             if (valueSize < valueSizeRequired) {
               android_errorWriteLog(0x534e4554, "37563371");
               ALOGE("%s EQ_PARAM_PROPERTIES invalid valueSize %u < %u",
@@ -3092,11 +3091,8 @@
                               audio_buffer_t         *inBuffer,
                               audio_buffer_t         *outBuffer){
     EffectContext * pContext = (EffectContext *) self;
-    LVM_ReturnStatus_en     LvmStatus = LVM_SUCCESS;                /* Function call status */
     int    status = 0;
     int    processStatus = 0;
-    LVM_INT16   *in  = (LVM_INT16 *)inBuffer->raw;
-    LVM_INT16   *out = (LVM_INT16 *)outBuffer->raw;
 
 //ALOGV("\tEffect_process Start : Enabled = %d     Called = %d (%8d %8d %8d)",
 //pContext->pBundledContext->NumberEffectsEnabled,pContext->pBundledContext->NumberEffectsCalled,
@@ -3232,7 +3228,6 @@
                               uint32_t            *replySize,
                               void                *pReplyData){
     EffectContext * pContext = (EffectContext *) self;
-    int retsize;
 
     //ALOGV("\t\nEffect_command start");
 
@@ -3638,7 +3633,6 @@
             int16_t  leftdB, rightdB;
             int16_t  maxdB, pandB;
             int32_t  vol_ret[2] = {1<<24,1<<24}; // Apply no volume
-            int      status = 0;
             LVM_ControlParams_t     ActiveParams;           /* Current control Parameters */
             LVM_ReturnStatus_en     LvmStatus=LVM_SUCCESS;  /* Function call status */
 
diff --git a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
index 9459b87..ee604eb 100644
--- a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
+++ b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
@@ -140,7 +140,7 @@
                                        {120001, 460000},
                                        {460001, 1800000},
                                        {1800001, 7000000},
-                                       {7000001, 1}};
+                                       {7000001, 20000000}};
 
 //Note: If these frequencies change, please update LimitLevel values accordingly.
 static const LVM_UINT16  EQNB_5BandPresetsFrequencies[] = {
diff --git a/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp b/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp
index 80c8a38..ec6243a 100644
--- a/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp
+++ b/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp
@@ -16,7 +16,7 @@
  */
 
 #define LOG_TAG "Reverb"
-#define ARRAY_SIZE(array) (sizeof array / sizeof array[0])
+#define ARRAY_SIZE(array) (sizeof (array) / sizeof (array)[0])
 //#define LOG_NDEBUG 0
 
 #include <assert.h>
@@ -25,7 +25,8 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include <cutils/log.h>
+#include <log/log.h>
+
 #include "EffectReverb.h"
 // from Reverb/lib
 #include "LVREV.h"
@@ -34,15 +35,15 @@
 extern "C" const struct effect_interface_s gReverbInterface;
 
 #define LVM_ERROR_CHECK(LvmStatus, callingFunc, calledFunc){\
-        if (LvmStatus == LVREV_NULLADDRESS){\
+        if ((LvmStatus) == LVREV_NULLADDRESS){\
             ALOGV("\tLVREV_ERROR : Parameter error - "\
                     "null pointer returned by %s in %s\n\n\n\n", callingFunc, calledFunc);\
         }\
-        if (LvmStatus == LVREV_INVALIDNUMSAMPLES){\
+        if ((LvmStatus) == LVREV_INVALIDNUMSAMPLES){\
             ALOGV("\tLVREV_ERROR : Parameter error - "\
                     "bad number of samples returned by %s in %s\n\n\n\n", callingFunc, calledFunc);\
         }\
-        if (LvmStatus == LVREV_OUTOFRANGE){\
+        if ((LvmStatus) == LVREV_OUTOFRANGE){\
             ALOGV("\tLVREV_ERROR : Parameter error - "\
                     "out of range returned by %s in %s\n", callingFunc, calledFunc);\
         }\
@@ -327,6 +328,7 @@
     }                                         \
 }
 
+#if 0
 //----------------------------------------------------------------------------
 // MonoTo2I_32()
 //----------------------------------------------------------------------------
@@ -385,6 +387,7 @@
 
    return;
 }
+#endif
 
 static inline int16_t clamp16(int32_t sample)
 {
@@ -560,7 +563,6 @@
 void Reverb_free(ReverbContext *pContext){
 
     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;         /* Function call status */
-    LVREV_ControlParams_st    params;                        /* Control Parameters */
     LVREV_MemoryTable_st      MemTab;
 
     /* Free the algorithm memory */
@@ -709,8 +711,6 @@
 //----------------------------------------------------------------------------
 
 int Reverb_init(ReverbContext *pContext){
-    int status;
-
     ALOGV("\tReverb_init start");
 
     CHECK_ARG(pContext != NULL);
@@ -1543,7 +1543,6 @@
     int status = 0;
     int32_t *pParamTemp = (int32_t *)pParam;
     int32_t param = *pParamTemp++;
-    char *name;
     t_reverb_settings *pProperties;
 
     //ALOGV("\tReverb_getParameter start");
@@ -1934,7 +1933,6 @@
                               uint32_t            *replySize,
                               void                *pReplyData){
     android::ReverbContext * pContext = (android::ReverbContext *) self;
-    int retsize;
     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
 
diff --git a/media/libeffects/lvm/wrapper/Reverb/EffectReverb.h b/media/libeffects/lvm/wrapper/Reverb/EffectReverb.h
index 7c15b18..8165f5a 100644
--- a/media/libeffects/lvm/wrapper/Reverb/EffectReverb.h
+++ b/media/libeffects/lvm/wrapper/Reverb/EffectReverb.h
@@ -30,7 +30,7 @@
 #define LVREV_MAX_REVERB_LEVEL  2000
 #define LVREV_MAX_FRAME_SIZE    2560
 #define LVREV_CUP_LOAD_ARM9E    470    // Expressed in 0.1 MIPS
-#define LVREV_MEM_USAGE         71+(LVREV_MAX_FRAME_SIZE>>7)     // Expressed in kB
+#define LVREV_MEM_USAGE         (71+(LVREV_MAX_FRAME_SIZE>>7))     // Expressed in kB
 //#define LVM_PCM
 
 typedef struct _LPFPair_t
diff --git a/media/libeffects/preprocessing/Android.mk b/media/libeffects/preprocessing/Android.mk
index 4e4b094..06d8237 100644
--- a/media/libeffects/preprocessing/Android.mk
+++ b/media/libeffects/preprocessing/Android.mk
@@ -7,6 +7,7 @@
 LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE_RELATIVE_PATH := soundfx
 
+LOCAL_VENDOR_MODULE := true
 LOCAL_SRC_FILES:= \
     PreProcessing.cpp
 
@@ -16,8 +17,6 @@
     external/webrtc/webrtc/modules/audio_processing/include \
     $(call include-path-for, audio-effects)
 
-LOCAL_C_INCLUDES += $(call include-path-for, speex)
-
 LOCAL_SHARED_LIBRARIES := \
     libwebrtc_audio_preprocessing \
     libspeexresampler \
@@ -30,5 +29,6 @@
     -DWEBRTC_POSIX
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libeffects/preprocessing/PreProcessing.cpp b/media/libeffects/preprocessing/PreProcessing.cpp
index f48bac1..f2844ed 100644
--- a/media/libeffects/preprocessing/PreProcessing.cpp
+++ b/media/libeffects/preprocessing/PreProcessing.cpp
@@ -531,6 +531,7 @@
         break;
     case AUDIO_DEVICE_OUT_WIRED_HEADSET:
     case AUDIO_DEVICE_OUT_WIRED_HEADPHONE:
+    case AUDIO_DEVICE_OUT_USB_HEADSET:
     default:
         break;
     }
@@ -933,7 +934,6 @@
 
 int Session_SetConfig(preproc_session_t *session, effect_config_t *config)
 {
-    uint32_t sr;
     uint32_t inCnl = audio_channel_count_from_in_mask(config->inputCfg.channels);
     uint32_t outCnl = audio_channel_count_from_in_mask(config->outputCfg.channels);
 
@@ -1153,7 +1153,6 @@
 preproc_session_t *PreProc_GetSession(int32_t procId, int32_t  sessionId, int32_t  ioId)
 {
     size_t i;
-    int free = -1;
     for (i = 0; i < PREPROC_NUM_SESSIONS; i++) {
         if (sSessions[i].io == ioId) {
             if (sSessions[i].createdMsk & (1 << procId)) {
@@ -1210,7 +1209,6 @@
                             audio_buffer_t    *outBuffer)
 {
     preproc_effect_t * effect = (preproc_effect_t *)self;
-    int    status = 0;
 
     if (effect == NULL){
         ALOGV("PreProcessingFx_Process() ERROR effect == NULL");
@@ -1402,8 +1400,6 @@
                             void                *pReplyData)
 {
     preproc_effect_t * effect = (preproc_effect_t *) self;
-    int retsize;
-    int status;
 
     if (effect == NULL){
         return -EINVAL;
@@ -1777,7 +1773,6 @@
                                    audio_buffer_t    *outBuffer __unused)
 {
     preproc_effect_t * effect = (preproc_effect_t *)self;
-    int    status = 0;
 
     if (effect == NULL){
         ALOGW("PreProcessingFx_ProcessReverse() ERROR effect == NULL");
@@ -1926,7 +1921,6 @@
 
 int PreProcessingLib_Release(effect_handle_t interface)
 {
-    int status;
     ALOGV("EffectRelease start %p", interface);
     if (PreProc_Init() != 0) {
         return sInitStatus;
diff --git a/media/libeffects/proxy/Android.mk b/media/libeffects/proxy/Android.mk
index 2ba452e..c4de30d 100644
--- a/media/libeffects/proxy/Android.mk
+++ b/media/libeffects/proxy/Android.mk
@@ -18,11 +18,12 @@
 LOCAL_MODULE_RELATIVE_PATH := soundfx
 LOCAL_MODULE_TAGS := optional
 
-
+LOCAL_VENDOR_MODULE := true
 LOCAL_SRC_FILES := \
         EffectProxy.cpp
 
 LOCAL_CFLAGS+= -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_SHARED_LIBRARIES := liblog libcutils libutils libdl libeffects
 
diff --git a/media/libeffects/proxy/EffectProxy.cpp b/media/libeffects/proxy/EffectProxy.cpp
index 62d3fd3..42e44f0 100644
--- a/media/libeffects/proxy/EffectProxy.cpp
+++ b/media/libeffects/proxy/EffectProxy.cpp
@@ -17,13 +17,16 @@
 #define LOG_TAG "EffectProxy"
 //#define LOG_NDEBUG 0
 
-#include <cutils/log.h>
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>
 #include <new>
+
 #include <EffectProxy.h>
+
+#include <log/log.h>
 #include <utils/threads.h>
+
 #include <media/EffectsFactoryApi.h>
 
 namespace android {
@@ -44,12 +47,6 @@
 };
 
 
-static const effect_descriptor_t *const gDescriptors[] =
-{
-    &gProxyDescriptor,
-};
-
-
 int EffectProxyCreate(const effect_uuid_t *uuid,
                             int32_t             sessionId,
                             int32_t             ioId,
@@ -91,6 +88,7 @@
        delete[] pContext->sube;
        delete[] pContext->desc;
        delete[] pContext->aeli;
+       delete pContext;
        return -EINVAL;
     }
     // Check which is the HW descriptor and copy the descriptors
@@ -241,6 +239,11 @@
     // pCmdData points to a memory holding effect_offload_param_t structure
     if (cmdCode == EFFECT_CMD_OFFLOAD) {
         ALOGV("Effect_command() cmdCode = EFFECT_CMD_OFFLOAD");
+        if (replySize == NULL || *replySize < sizeof(int)) {
+            ALOGV("effectsOffload: Effect_command: CMD_OFFLOAD has no reply");
+            android_errorWriteLog(0x534e4554, "32448121");
+            return FAILED_TRANSACTION;
+        }
         if (cmdSize == 0 || pCmdData == NULL) {
             ALOGV("effectsOffload: Effect_command: CMD_OFFLOAD has no data");
              *(int*)pReplyData = FAILED_TRANSACTION;
diff --git a/media/libeffects/testlibs/EffectEqualizer.cpp b/media/libeffects/testlibs/EffectEqualizer.cpp
index 3cb13f2..db4d009 100644
--- a/media/libeffects/testlibs/EffectEqualizer.cpp
+++ b/media/libeffects/testlibs/EffectEqualizer.cpp
@@ -18,17 +18,20 @@
 #define ARRAY_SIZE(array) (sizeof array / sizeof array[0])
 //
 #define LOG_NDEBUG 0
-#include <cutils/log.h>
+
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>
+
 #include <new>
+
+#include <log/log.h>
+
 #include "AudioEqualizer.h"
 #include "AudioBiquadFilter.h"
 #include "AudioFormatAdapter.h"
 #include <audio_effects/effect_equalizer.h>
 
-
 // effect_handle_t interface implementation for equalizer effect
 extern "C" const struct effect_interface_s gEqualizerInterface;
 
diff --git a/media/libeffects/testlibs/EffectReverb.c b/media/libeffects/testlibs/EffectReverb.c
index f056d19..fce9bed 100644
--- a/media/libeffects/testlibs/EffectReverb.c
+++ b/media/libeffects/testlibs/EffectReverb.c
@@ -16,10 +16,13 @@
 
 #define LOG_TAG "EffectReverb"
 //#define LOG_NDEBUG 0
-#include <cutils/log.h>
+
+#include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
-#include <stdbool.h>
+
+#include <log/log.h>
+
 #include "EffectReverb.h"
 #include "EffectsMath.h"
 
diff --git a/media/libeffects/testlibs/EffectsMath.c b/media/libeffects/testlibs/EffectsMath.c
index 41ec662..efd9e87 100644
--- a/media/libeffects/testlibs/EffectsMath.c
+++ b/media/libeffects/testlibs/EffectsMath.c
@@ -15,9 +15,11 @@
  */
 #define LOG_TAG "EFFECTSMATH"
 //#define LOG_NDEBUG 0
-#include <cutils/log.h>
+
 #include <assert.h>
 
+#include <android/log.h>
+
 #include "EffectsMath.h"
 
 // gLogTab contains pre-calculated values of log2(1 + ai5*2^-1 + ai4*2^-2 + ai3*2^-3 + ai2*2^-4 + ai1*2^-5 + ai0*2^-6)
diff --git a/media/libeffects/visualizer/Android.mk b/media/libeffects/visualizer/Android.mk
index c92c543..8687e1b 100644
--- a/media/libeffects/visualizer/Android.mk
+++ b/media/libeffects/visualizer/Android.mk
@@ -3,10 +3,12 @@
 # Visualizer library
 include $(CLEAR_VARS)
 
+LOCAL_VENDOR_MODULE := true
 LOCAL_SRC_FILES:= \
 	EffectVisualizer.cpp
 
 LOCAL_CFLAGS+= -O2 -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
diff --git a/media/libeffects/visualizer/EffectVisualizer.cpp b/media/libeffects/visualizer/EffectVisualizer.cpp
index b7d27d6..0e82339 100644
--- a/media/libeffects/visualizer/EffectVisualizer.cpp
+++ b/media/libeffects/visualizer/EffectVisualizer.cpp
@@ -16,17 +16,19 @@
 
 #define LOG_TAG "EffectVisualizer"
 //#define LOG_NDEBUG 0
-#include <log/log.h>
+
 #include <assert.h>
 #include <inttypes.h>
+#include <math.h>
 #include <stdlib.h>
 #include <string.h>
-#include <new>
 #include <time.h>
-#include <math.h>
-#include <audio_effects/effect_visualizer.h>
-#include <cutils/log.h>
 
+#include <new>
+
+#include <log/log.h>
+
+#include <audio_effects/effect_visualizer.h>
 
 extern "C" {
 
@@ -235,7 +237,6 @@
                          int32_t /*ioId*/,
                          effect_handle_t *pHandle) {
     int ret;
-    int i;
 
     if (pHandle == NULL || uuid == NULL) {
         return -EINVAL;
@@ -417,7 +418,6 @@
         void *pCmdData, uint32_t *replySize, void *pReplyData) {
 
     VisualizerContext * pContext = (VisualizerContext *)self;
-    int retsize;
 
     if (pContext == NULL || pContext->mState == VISUALIZER_STATE_UNINITIALIZED) {
         return -EINVAL;
diff --git a/media/libmedia/Android.bp b/media/libmedia/Android.bp
new file mode 100644
index 0000000..11a498d
--- /dev/null
+++ b/media/libmedia/Android.bp
@@ -0,0 +1,20 @@
+cc_library_headers {
+    name: "libmedia_headers",
+    vendor_available: true,
+    export_include_dirs: ["include"],
+}
+
+cc_library {
+    name: "libmedia_helper",
+    vendor_available: true,
+    srcs: ["AudioParameter.cpp", "TypeConverter.cpp"],
+    cflags: [
+        "-Werror",
+        "-Wno-error=deprecated-declarations",
+        "-Wall",
+    ],
+    shared: {
+      shared_libs: ["libutils", "liblog"],
+    },
+    clang: true,
+}
diff --git a/media/libmedia/Android.mk b/media/libmedia/Android.mk
index 2bdfd43..e667786 100644
--- a/media/libmedia/Android.mk
+++ b/media/libmedia/Android.mk
@@ -2,39 +2,22 @@
 
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES:= \
-    AudioParameter.cpp
-LOCAL_MODULE:= libmedia_helper
-LOCAL_MODULE_TAGS := optional
-
-LOCAL_CFLAGS += -Werror -Wno-error=deprecated-declarations -Wall
-LOCAL_CLANG := true
-
-include $(BUILD_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
+LOCAL_AIDL_INCLUDES := \
+    frameworks/av/media/libmedia/aidl
 
 LOCAL_SRC_FILES:= \
-    AudioTrack.cpp \
-    AudioTrackShared.cpp \
-    IAudioFlinger.cpp \
-    IAudioFlingerClient.cpp \
-    IAudioTrack.cpp \
-    IAudioRecord.cpp \
-    ICrypto.cpp \
+    aidl/android/IGraphicBufferSource.aidl \
+    aidl/android/IOMXBufferSource.aidl
+
+LOCAL_SRC_FILES += \
     IDataSource.cpp \
-    IDrm.cpp \
-    IDrmClient.cpp \
     IHDCP.cpp \
-    AudioRecord.cpp \
-    AudioSystem.cpp \
+    BufferingSettings.cpp \
     mediaplayer.cpp \
     IMediaCodecList.cpp \
     IMediaCodecService.cpp \
-    IMediaDrmService.cpp \
     IMediaHTTPConnection.cpp \
     IMediaHTTPService.cpp \
-    IMediaLogService.cpp \
     IMediaExtractor.cpp           \
     IMediaExtractorService.cpp \
     IMediaPlayerService.cpp \
@@ -48,18 +31,18 @@
     IResourceManagerClient.cpp \
     IResourceManagerService.cpp \
     IStreamSource.cpp \
+    MediaCodecBuffer.cpp \
     MediaCodecInfo.cpp \
+    MediaDefs.cpp \
     MediaUtils.cpp \
     Metadata.cpp \
     mediarecorder.cpp \
     IMediaMetadataRetriever.cpp \
     mediametadataretriever.cpp \
+    MidiDeviceInfo.cpp \
     MidiIoWrapper.cpp \
-    ToneGenerator.cpp \
     JetPlayer.cpp \
     IOMX.cpp \
-    IAudioPolicyService.cpp \
-    IAudioPolicyServiceClient.cpp \
     MediaScanner.cpp \
     MediaScannerClient.cpp \
     CharacterEncodingDetector.cpp \
@@ -67,20 +50,43 @@
     MediaProfiles.cpp \
     MediaResource.cpp \
     MediaResourcePolicy.cpp \
-    IEffect.cpp \
-    IEffectClient.cpp \
-    AudioEffect.cpp \
+    OMXBuffer.cpp \
     Visualizer.cpp \
-    MemoryLeakTrackUtil.cpp \
     StringArray.cpp \
-    AudioPolicy.cpp
+    omx/1.0/WGraphicBufferSource.cpp \
+    omx/1.0/WOmx.cpp \
+    omx/1.0/WOmxBufferSource.cpp \
+    omx/1.0/WOmxNode.cpp \
+    omx/1.0/WOmxObserver.cpp \
 
 LOCAL_SHARED_LIBRARIES := \
-	libui liblog libcutils libutils libbinder libsonivox libicuuc libicui18n libexpat \
+        libui liblog libcutils libutils libbinder libsonivox libicuuc libicui18n libexpat \
         libcamera_client libstagefright_foundation \
-        libgui libdl libaudioutils libnbaio
+        libgui libdl libaudioutils libaudioclient \
+        libmedia_helper libmediadrm \
+        libmediametrics \
+        libbase \
+        libhidlbase \
+        libhidltransport \
+        libhwbinder \
+        libhidlmemory \
+        android.hidl.base@1.0 \
+        android.hidl.memory@1.0 \
+        android.hidl.token@1.0-utils \
+        android.hardware.graphics.common@1.0 \
+        android.hardware.graphics.bufferqueue@1.0 \
+        android.hardware.media@1.0 \
+        android.hardware.media.omx@1.0 \
 
-LOCAL_WHOLE_STATIC_LIBRARIES := libmedia_helper
+LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := \
+        libbinder \
+        libsonivox \
+        libmediadrm \
+        android.hidl.token@1.0-utils \
+        android.hardware.media.omx@1.0 \
+        android.hidl.memory@1.0 \
+
+LOCAL_HEADER_LIBRARIES := libmedia_headers
 
 # for memory heap analysis
 LOCAL_STATIC_LIBRARIES := libc_malloc_debug_backtrace libc_logging
@@ -90,15 +96,20 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
 LOCAL_C_INCLUDES := \
+    $(TOP)/system/libhidl/base/include \
     $(TOP)/frameworks/native/include/media/openmax \
     $(TOP)/frameworks/av/include/media/ \
-    $(TOP)/frameworks/av/media/libstagefright \
-    $(call include-path-for, audio-effects) \
+    $(TOP)/frameworks/av/media/libmedia/aidl \
+    $(TOP)/frameworks/av/include \
+    $(TOP)/frameworks/native/include \
     $(call include-path-for, audio-utils)
 
+LOCAL_EXPORT_C_INCLUDE_DIRS := \
+    frameworks/av/include/media \
+    frameworks/av/media/libmedia/aidl \
+
 LOCAL_CFLAGS += -Werror -Wno-error=deprecated-declarations -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
-
diff --git a/media/libmedia/AudioEffect.cpp b/media/libmedia/AudioEffect.cpp
deleted file mode 100644
index 590952f..0000000
--- a/media/libmedia/AudioEffect.cpp
+++ /dev/null
@@ -1,494 +0,0 @@
-/*
-**
-** Copyright 2010, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "AudioEffect"
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <limits.h>
-
-#include <private/media/AudioEffectShared.h>
-#include <media/AudioEffect.h>
-
-#include <utils/Log.h>
-#include <binder/IPCThreadState.h>
-
-
-
-namespace android {
-
-// ---------------------------------------------------------------------------
-
-AudioEffect::AudioEffect(const String16& opPackageName)
-    : mStatus(NO_INIT), mOpPackageName(opPackageName)
-{
-}
-
-
-AudioEffect::AudioEffect(const effect_uuid_t *type,
-                const String16& opPackageName,
-                const effect_uuid_t *uuid,
-                int32_t priority,
-                effect_callback_t cbf,
-                void* user,
-                audio_session_t sessionId,
-                audio_io_handle_t io
-                )
-    : mStatus(NO_INIT), mOpPackageName(opPackageName)
-{
-    mStatus = set(type, uuid, priority, cbf, user, sessionId, io);
-}
-
-AudioEffect::AudioEffect(const char *typeStr,
-                const String16& opPackageName,
-                const char *uuidStr,
-                int32_t priority,
-                effect_callback_t cbf,
-                void* user,
-                audio_session_t sessionId,
-                audio_io_handle_t io
-                )
-    : mStatus(NO_INIT), mOpPackageName(opPackageName)
-{
-    effect_uuid_t type;
-    effect_uuid_t *pType = NULL;
-    effect_uuid_t uuid;
-    effect_uuid_t *pUuid = NULL;
-
-    ALOGV("Constructor string\n - type: %s\n - uuid: %s", typeStr, uuidStr);
-
-    if (typeStr != NULL) {
-        if (stringToGuid(typeStr, &type) == NO_ERROR) {
-            pType = &type;
-        }
-    }
-
-    if (uuidStr != NULL) {
-        if (stringToGuid(uuidStr, &uuid) == NO_ERROR) {
-            pUuid = &uuid;
-        }
-    }
-
-    mStatus = set(pType, pUuid, priority, cbf, user, sessionId, io);
-}
-
-status_t AudioEffect::set(const effect_uuid_t *type,
-                const effect_uuid_t *uuid,
-                int32_t priority,
-                effect_callback_t cbf,
-                void* user,
-                audio_session_t sessionId,
-                audio_io_handle_t io)
-{
-    sp<IEffect> iEffect;
-    sp<IMemory> cblk;
-    int enabled;
-
-    ALOGV("set %p mUserData: %p uuid: %p timeLow %08x", this, user, type, type ? type->timeLow : 0);
-
-    if (mIEffect != 0) {
-        ALOGW("Effect already in use");
-        return INVALID_OPERATION;
-    }
-
-    const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger();
-    if (audioFlinger == 0) {
-        ALOGE("set(): Could not get audioflinger");
-        return NO_INIT;
-    }
-
-    if (type == NULL && uuid == NULL) {
-        ALOGW("Must specify at least type or uuid");
-        return BAD_VALUE;
-    }
-
-    mPriority = priority;
-    mCbf = cbf;
-    mUserData = user;
-    mSessionId = sessionId;
-
-    memset(&mDescriptor, 0, sizeof(effect_descriptor_t));
-    mDescriptor.type = *(type != NULL ? type : EFFECT_UUID_NULL);
-    mDescriptor.uuid = *(uuid != NULL ? uuid : EFFECT_UUID_NULL);
-
-    mIEffectClient = new EffectClient(this);
-
-    iEffect = audioFlinger->createEffect((effect_descriptor_t *)&mDescriptor,
-            mIEffectClient, priority, io, mSessionId, mOpPackageName, &mStatus, &mId, &enabled);
-
-    if (iEffect == 0 || (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS)) {
-        ALOGE("set(): AudioFlinger could not create effect, status: %d", mStatus);
-        if (iEffect == 0) {
-            mStatus = NO_INIT;
-        }
-        return mStatus;
-    }
-
-    mEnabled = (volatile int32_t)enabled;
-
-    cblk = iEffect->getCblk();
-    if (cblk == 0) {
-        mStatus = NO_INIT;
-        ALOGE("Could not get control block");
-        return mStatus;
-    }
-
-    mIEffect = iEffect;
-    mCblkMemory = cblk;
-    mCblk = static_cast<effect_param_cblk_t*>(cblk->pointer());
-    int bufOffset = ((sizeof(effect_param_cblk_t) - 1) / sizeof(int) + 1) * sizeof(int);
-    mCblk->buffer = (uint8_t *)mCblk + bufOffset;
-
-    IInterface::asBinder(iEffect)->linkToDeath(mIEffectClient);
-    mClientPid = IPCThreadState::self()->getCallingPid();
-    ALOGV("set() %p OK effect: %s id: %d status %d enabled %d pid %d", this, mDescriptor.name, mId,
-            mStatus, mEnabled, mClientPid);
-
-    if (mSessionId > AUDIO_SESSION_OUTPUT_MIX) {
-        AudioSystem::acquireAudioSessionId(mSessionId, mClientPid);
-    }
-
-    return mStatus;
-}
-
-
-AudioEffect::~AudioEffect()
-{
-    ALOGV("Destructor %p", this);
-
-    if (mStatus == NO_ERROR || mStatus == ALREADY_EXISTS) {
-        if (mSessionId > AUDIO_SESSION_OUTPUT_MIX) {
-            AudioSystem::releaseAudioSessionId(mSessionId, mClientPid);
-        }
-        if (mIEffect != NULL) {
-            mIEffect->disconnect();
-            IInterface::asBinder(mIEffect)->unlinkToDeath(mIEffectClient);
-        }
-        mIEffect.clear();
-        mCblkMemory.clear();
-        mIEffectClient.clear();
-        IPCThreadState::self()->flushCommands();
-    }
-}
-
-
-status_t AudioEffect::initCheck() const
-{
-    return mStatus;
-}
-
-// -------------------------------------------------------------------------
-
-effect_descriptor_t AudioEffect::descriptor() const
-{
-    return mDescriptor;
-}
-
-bool AudioEffect::getEnabled() const
-{
-    return (mEnabled != 0);
-}
-
-status_t AudioEffect::setEnabled(bool enabled)
-{
-    if (mStatus != NO_ERROR) {
-        return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus;
-    }
-
-    status_t status = NO_ERROR;
-
-    AutoMutex lock(mLock);
-    if (enabled != mEnabled) {
-        if (enabled) {
-            ALOGV("enable %p", this);
-            status = mIEffect->enable();
-        } else {
-            ALOGV("disable %p", this);
-            status = mIEffect->disable();
-        }
-        if (status == NO_ERROR) {
-            mEnabled = enabled;
-        }
-    }
-    return status;
-}
-
-status_t AudioEffect::command(uint32_t cmdCode,
-                              uint32_t cmdSize,
-                              void *cmdData,
-                              uint32_t *replySize,
-                              void *replyData)
-{
-    if (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS) {
-        ALOGV("command() bad status %d", mStatus);
-        return mStatus;
-    }
-
-    if (cmdCode == EFFECT_CMD_ENABLE || cmdCode == EFFECT_CMD_DISABLE) {
-        if (mEnabled == (cmdCode == EFFECT_CMD_ENABLE)) {
-            return NO_ERROR;
-        }
-        if (replySize == NULL || *replySize != sizeof(status_t) || replyData == NULL) {
-            return BAD_VALUE;
-        }
-        mLock.lock();
-    }
-
-    status_t status = mIEffect->command(cmdCode, cmdSize, cmdData, replySize, replyData);
-
-    if (cmdCode == EFFECT_CMD_ENABLE || cmdCode == EFFECT_CMD_DISABLE) {
-        if (status == NO_ERROR) {
-            status = *(status_t *)replyData;
-        }
-        if (status == NO_ERROR) {
-            mEnabled = (cmdCode == EFFECT_CMD_ENABLE);
-        }
-        mLock.unlock();
-    }
-
-    return status;
-}
-
-
-status_t AudioEffect::setParameter(effect_param_t *param)
-{
-    if (mStatus != NO_ERROR) {
-        return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus;
-    }
-
-    if (param == NULL || param->psize == 0 || param->vsize == 0) {
-        return BAD_VALUE;
-    }
-
-    uint32_t size = sizeof(int);
-    uint32_t psize = ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + param->vsize;
-
-    ALOGV("setParameter: param: %d, param2: %d", *(int *)param->data,
-            (param->psize == 8) ? *((int *)param->data + 1): -1);
-
-    return mIEffect->command(EFFECT_CMD_SET_PARAM, sizeof (effect_param_t) + psize, param, &size,
-            &param->status);
-}
-
-status_t AudioEffect::setParameterDeferred(effect_param_t *param)
-{
-    if (mStatus != NO_ERROR) {
-        return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus;
-    }
-
-    if (param == NULL || param->psize == 0 || param->vsize == 0) {
-        return BAD_VALUE;
-    }
-
-    Mutex::Autolock _l(mCblk->lock);
-
-    int psize = ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + param->vsize;
-    int size = ((sizeof(effect_param_t) + psize - 1) / sizeof(int) + 1) * sizeof(int);
-
-    if (mCblk->clientIndex + size > EFFECT_PARAM_BUFFER_SIZE) {
-        return NO_MEMORY;
-    }
-    int *p = (int *)(mCblk->buffer + mCblk->clientIndex);
-    *p++ = size;
-    memcpy(p, param, sizeof(effect_param_t) + psize);
-    mCblk->clientIndex += size;
-
-    return NO_ERROR;
-}
-
-status_t AudioEffect::setParameterCommit()
-{
-    if (mStatus != NO_ERROR) {
-        return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus;
-    }
-
-    Mutex::Autolock _l(mCblk->lock);
-    if (mCblk->clientIndex == 0) {
-        return INVALID_OPERATION;
-    }
-    uint32_t size = 0;
-    return mIEffect->command(EFFECT_CMD_SET_PARAM_COMMIT, 0, NULL, &size, NULL);
-}
-
-status_t AudioEffect::getParameter(effect_param_t *param)
-{
-    if (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS) {
-        return mStatus;
-    }
-
-    if (param == NULL || param->psize == 0 || param->vsize == 0) {
-        return BAD_VALUE;
-    }
-
-    ALOGV("getParameter: param: %d, param2: %d", *(int *)param->data,
-            (param->psize == 8) ? *((int *)param->data + 1): -1);
-
-    uint32_t psize = sizeof(effect_param_t) + ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) +
-            param->vsize;
-
-    return mIEffect->command(EFFECT_CMD_GET_PARAM, sizeof(effect_param_t) + param->psize, param,
-            &psize, param);
-}
-
-
-// -------------------------------------------------------------------------
-
-void AudioEffect::binderDied()
-{
-    ALOGW("IEffect died");
-    mStatus = DEAD_OBJECT;
-    if (mCbf != NULL) {
-        status_t status = DEAD_OBJECT;
-        mCbf(EVENT_ERROR, mUserData, &status);
-    }
-    mIEffect.clear();
-}
-
-// -------------------------------------------------------------------------
-
-void AudioEffect::controlStatusChanged(bool controlGranted)
-{
-    ALOGV("controlStatusChanged %p control %d callback %p mUserData %p", this, controlGranted, mCbf,
-            mUserData);
-    if (controlGranted) {
-        if (mStatus == ALREADY_EXISTS) {
-            mStatus = NO_ERROR;
-        }
-    } else {
-        if (mStatus == NO_ERROR) {
-            mStatus = ALREADY_EXISTS;
-        }
-    }
-    if (mCbf != NULL) {
-        mCbf(EVENT_CONTROL_STATUS_CHANGED, mUserData, &controlGranted);
-    }
-}
-
-void AudioEffect::enableStatusChanged(bool enabled)
-{
-    ALOGV("enableStatusChanged %p enabled %d mCbf %p", this, enabled, mCbf);
-    if (mStatus == ALREADY_EXISTS) {
-        mEnabled = enabled;
-        if (mCbf != NULL) {
-            mCbf(EVENT_ENABLE_STATUS_CHANGED, mUserData, &enabled);
-        }
-    }
-}
-
-void AudioEffect::commandExecuted(uint32_t cmdCode,
-                                  uint32_t cmdSize __unused,
-                                  void *cmdData,
-                                  uint32_t replySize __unused,
-                                  void *replyData)
-{
-    if (cmdData == NULL || replyData == NULL) {
-        return;
-    }
-
-    if (mCbf != NULL && cmdCode == EFFECT_CMD_SET_PARAM) {
-        effect_param_t *cmd = (effect_param_t *)cmdData;
-        cmd->status = *(int32_t *)replyData;
-        mCbf(EVENT_PARAMETER_CHANGED, mUserData, cmd);
-    }
-}
-
-// -------------------------------------------------------------------------
-
-status_t AudioEffect::queryNumberEffects(uint32_t *numEffects)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    return af->queryNumberEffects(numEffects);
-}
-
-status_t AudioEffect::queryEffect(uint32_t index, effect_descriptor_t *descriptor)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    return af->queryEffect(index, descriptor);
-}
-
-status_t AudioEffect::getEffectDescriptor(const effect_uuid_t *uuid,
-        effect_descriptor_t *descriptor) /*const*/
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    return af->getEffectDescriptor(uuid, descriptor);
-}
-
-
-status_t AudioEffect::queryDefaultPreProcessing(audio_session_t audioSession,
-                                          effect_descriptor_t *descriptors,
-                                          uint32_t *count)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->queryDefaultPreProcessing(audioSession, descriptors, count);
-}
-// -------------------------------------------------------------------------
-
-status_t AudioEffect::stringToGuid(const char *str, effect_uuid_t *guid)
-{
-    if (str == NULL || guid == NULL) {
-        return BAD_VALUE;
-    }
-
-    int tmp[10];
-
-    if (sscanf(str, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x",
-            tmp, tmp+1, tmp+2, tmp+3, tmp+4, tmp+5, tmp+6, tmp+7, tmp+8, tmp+9) < 10) {
-        return BAD_VALUE;
-    }
-    guid->timeLow = (uint32_t)tmp[0];
-    guid->timeMid = (uint16_t)tmp[1];
-    guid->timeHiAndVersion = (uint16_t)tmp[2];
-    guid->clockSeq = (uint16_t)tmp[3];
-    guid->node[0] = (uint8_t)tmp[4];
-    guid->node[1] = (uint8_t)tmp[5];
-    guid->node[2] = (uint8_t)tmp[6];
-    guid->node[3] = (uint8_t)tmp[7];
-    guid->node[4] = (uint8_t)tmp[8];
-    guid->node[5] = (uint8_t)tmp[9];
-
-    return NO_ERROR;
-}
-
-status_t AudioEffect::guidToString(const effect_uuid_t *guid, char *str, size_t maxLen)
-{
-    if (guid == NULL || str == NULL) {
-        return BAD_VALUE;
-    }
-
-    snprintf(str, maxLen, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x",
-            guid->timeLow,
-            guid->timeMid,
-            guid->timeHiAndVersion,
-            guid->clockSeq,
-            guid->node[0],
-            guid->node[1],
-            guid->node[2],
-            guid->node[3],
-            guid->node[4],
-            guid->node[5]);
-
-    return NO_ERROR;
-}
-
-
-} // namespace android
diff --git a/media/libmedia/AudioParameter.cpp b/media/libmedia/AudioParameter.cpp
index 8c8cf45..65fc70b 100644
--- a/media/libmedia/AudioParameter.cpp
+++ b/media/libmedia/AudioParameter.cpp
@@ -19,8 +19,8 @@
 
 #include <utils/Log.h>
 
-#include <hardware/audio.h>
 #include <media/AudioParameter.h>
+#include <system/audio.h>
 
 namespace android {
 
@@ -32,6 +32,19 @@
 const char * const AudioParameter::keyFrameCount = AUDIO_PARAMETER_STREAM_FRAME_COUNT;
 const char * const AudioParameter::keyInputSource = AUDIO_PARAMETER_STREAM_INPUT_SOURCE;
 const char * const AudioParameter::keyScreenState = AUDIO_PARAMETER_KEY_SCREEN_STATE;
+const char * const AudioParameter::keyBtNrec = AUDIO_PARAMETER_KEY_BT_NREC;
+const char * const AudioParameter::keyHwAvSync = AUDIO_PARAMETER_HW_AV_SYNC;
+const char * const AudioParameter::keyMonoOutput = AUDIO_PARAMETER_MONO_OUTPUT;
+const char * const AudioParameter::keyStreamHwAvSync = AUDIO_PARAMETER_STREAM_HW_AV_SYNC;
+const char * const AudioParameter::keyStreamConnect = AUDIO_PARAMETER_DEVICE_CONNECT;
+const char * const AudioParameter::keyStreamDisconnect = AUDIO_PARAMETER_DEVICE_DISCONNECT;
+const char * const AudioParameter::keyStreamSupportedFormats = AUDIO_PARAMETER_STREAM_SUP_FORMATS;
+const char * const AudioParameter::keyStreamSupportedChannels = AUDIO_PARAMETER_STREAM_SUP_CHANNELS;
+const char * const AudioParameter::keyStreamSupportedSamplingRates =
+        AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES;
+const char * const AudioParameter::valueOn = AUDIO_PARAMETER_VALUE_ON;
+const char * const AudioParameter::valueOff = AUDIO_PARAMETER_VALUE_OFF;
+const char * const AudioParameter::valueListSeparator = AUDIO_PARAMETER_VALUE_LIST_SEPARATOR;
 
 AudioParameter::AudioParameter(const String8& keyValuePairs)
 {
@@ -70,15 +83,17 @@
     mParameters.clear();
 }
 
-String8 AudioParameter::toString()
+String8 AudioParameter::toStringImpl(bool useValues) const
 {
     String8 str = String8("");
 
     size_t size = mParameters.size();
     for (size_t i = 0; i < size; i++) {
         str += mParameters.keyAt(i);
-        str += "=";
-        str += mParameters.valueAt(i);
+        if (useValues) {
+            str += "=";
+            str += mParameters.valueAt(i);
+        }
         if (i < (size - 1)) str += ";";
     }
     return str;
@@ -95,6 +110,11 @@
     }
 }
 
+status_t AudioParameter::addKey(const String8& key)
+{
+    return add(key, String8());
+}
+
 status_t AudioParameter::addInt(const String8& key, const int value)
 {
     char str[12];
@@ -127,7 +147,7 @@
     }
 }
 
-status_t AudioParameter::get(const String8& key, String8& value)
+status_t AudioParameter::get(const String8& key, String8& value) const
 {
     if (mParameters.indexOfKey(key) >= 0) {
         value = mParameters.valueFor(key);
@@ -137,7 +157,7 @@
     }
 }
 
-status_t AudioParameter::getInt(const String8& key, int& value)
+status_t AudioParameter::getInt(const String8& key, int& value) const
 {
     String8 str8;
     status_t result = get(key, str8);
@@ -153,7 +173,7 @@
     return result;
 }
 
-status_t AudioParameter::getFloat(const String8& key, float& value)
+status_t AudioParameter::getFloat(const String8& key, float& value) const
 {
     String8 str8;
     status_t result = get(key, str8);
@@ -169,7 +189,17 @@
     return result;
 }
 
-status_t AudioParameter::getAt(size_t index, String8& key, String8& value)
+status_t AudioParameter::getAt(size_t index, String8& key) const
+{
+    if (mParameters.size() > index) {
+        key = mParameters.keyAt(index);
+        return NO_ERROR;
+    } else {
+        return BAD_VALUE;
+    }
+}
+
+status_t AudioParameter::getAt(size_t index, String8& key, String8& value) const
 {
     if (mParameters.size() > index) {
         key = mParameters.keyAt(index);
diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp
deleted file mode 100644
index a80c891..0000000
--- a/media/libmedia/AudioRecord.cpp
+++ /dev/null
@@ -1,1348 +0,0 @@
-/*
-**
-** Copyright 2008, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "AudioRecord"
-
-#include <inttypes.h>
-#include <sys/resource.h>
-
-#include <binder/IPCThreadState.h>
-#include <media/AudioRecord.h>
-#include <utils/Log.h>
-#include <private/media/AudioTrackShared.h>
-#include <media/IAudioFlinger.h>
-
-#define WAIT_PERIOD_MS          10
-
-namespace android {
-// ---------------------------------------------------------------------------
-
-// static
-status_t AudioRecord::getMinFrameCount(
-        size_t* frameCount,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask)
-{
-    if (frameCount == NULL) {
-        return BAD_VALUE;
-    }
-
-    size_t size;
-    status_t status = AudioSystem::getInputBufferSize(sampleRate, format, channelMask, &size);
-    if (status != NO_ERROR) {
-        ALOGE("AudioSystem could not query the input buffer size for sampleRate %u, format %#x, "
-              "channelMask %#x; status %d", sampleRate, format, channelMask, status);
-        return status;
-    }
-
-    // We double the size of input buffer for ping pong use of record buffer.
-    // Assumes audio_is_linear_pcm(format)
-    if ((*frameCount = (size * 2) / (audio_channel_count_from_in_mask(channelMask) *
-            audio_bytes_per_sample(format))) == 0) {
-        ALOGE("Unsupported configuration: sampleRate %u, format %#x, channelMask %#x",
-            sampleRate, format, channelMask);
-        return BAD_VALUE;
-    }
-
-    return NO_ERROR;
-}
-
-// ---------------------------------------------------------------------------
-
-AudioRecord::AudioRecord(const String16 &opPackageName)
-    : mActive(false), mStatus(NO_INIT), mOpPackageName(opPackageName), mSessionId(AUDIO_SESSION_ALLOCATE),
-      mPreviousPriority(ANDROID_PRIORITY_NORMAL), mPreviousSchedulingGroup(SP_DEFAULT),
-      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE)
-{
-}
-
-AudioRecord::AudioRecord(
-        audio_source_t inputSource,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        const String16& opPackageName,
-        size_t frameCount,
-        callback_t cbf,
-        void* user,
-        uint32_t notificationFrames,
-        audio_session_t sessionId,
-        transfer_type transferType,
-        audio_input_flags_t flags,
-        int uid,
-        pid_t pid,
-        const audio_attributes_t* pAttributes)
-    : mActive(false),
-      mStatus(NO_INIT),
-      mOpPackageName(opPackageName),
-      mSessionId(AUDIO_SESSION_ALLOCATE),
-      mPreviousPriority(ANDROID_PRIORITY_NORMAL),
-      mPreviousSchedulingGroup(SP_DEFAULT),
-      mProxy(NULL),
-      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE)
-{
-    mStatus = set(inputSource, sampleRate, format, channelMask, frameCount, cbf, user,
-            notificationFrames, false /*threadCanCallJava*/, sessionId, transferType, flags,
-            uid, pid, pAttributes);
-}
-
-AudioRecord::~AudioRecord()
-{
-    if (mStatus == NO_ERROR) {
-        // Make sure that callback function exits in the case where
-        // it is looping on buffer empty condition in obtainBuffer().
-        // Otherwise the callback thread will never exit.
-        stop();
-        if (mAudioRecordThread != 0) {
-            mProxy->interrupt();
-            mAudioRecordThread->requestExit();  // see comment in AudioRecord.h
-            mAudioRecordThread->requestExitAndWait();
-            mAudioRecordThread.clear();
-        }
-        // No lock here: worst case we remove a NULL callback which will be a nop
-        if (mDeviceCallback != 0 && mInput != AUDIO_IO_HANDLE_NONE) {
-            AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput);
-        }
-        IInterface::asBinder(mAudioRecord)->unlinkToDeath(mDeathNotifier, this);
-        mAudioRecord.clear();
-        mCblkMemory.clear();
-        mBufferMemory.clear();
-        IPCThreadState::self()->flushCommands();
-        ALOGV("~AudioRecord, releasing session id %d",
-                mSessionId);
-        AudioSystem::releaseAudioSessionId(mSessionId, -1 /*pid*/);
-    }
-}
-
-status_t AudioRecord::set(
-        audio_source_t inputSource,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        size_t frameCount,
-        callback_t cbf,
-        void* user,
-        uint32_t notificationFrames,
-        bool threadCanCallJava,
-        audio_session_t sessionId,
-        transfer_type transferType,
-        audio_input_flags_t flags,
-        int uid,
-        pid_t pid,
-        const audio_attributes_t* pAttributes)
-{
-    ALOGV("set(): inputSource %d, sampleRate %u, format %#x, channelMask %#x, frameCount %zu, "
-          "notificationFrames %u, sessionId %d, transferType %d, flags %#x, opPackageName %s "
-          "uid %d, pid %d",
-          inputSource, sampleRate, format, channelMask, frameCount, notificationFrames,
-          sessionId, transferType, flags, String8(mOpPackageName).string(), uid, pid);
-
-    switch (transferType) {
-    case TRANSFER_DEFAULT:
-        if (cbf == NULL || threadCanCallJava) {
-            transferType = TRANSFER_SYNC;
-        } else {
-            transferType = TRANSFER_CALLBACK;
-        }
-        break;
-    case TRANSFER_CALLBACK:
-        if (cbf == NULL) {
-            ALOGE("Transfer type TRANSFER_CALLBACK but cbf == NULL");
-            return BAD_VALUE;
-        }
-        break;
-    case TRANSFER_OBTAIN:
-    case TRANSFER_SYNC:
-        break;
-    default:
-        ALOGE("Invalid transfer type %d", transferType);
-        return BAD_VALUE;
-    }
-    mTransfer = transferType;
-
-    // invariant that mAudioRecord != 0 is true only after set() returns successfully
-    if (mAudioRecord != 0) {
-        ALOGE("Track already in use");
-        return INVALID_OPERATION;
-    }
-
-    if (pAttributes == NULL) {
-        memset(&mAttributes, 0, sizeof(audio_attributes_t));
-        mAttributes.source = inputSource;
-    } else {
-        // stream type shouldn't be looked at, this track has audio attributes
-        memcpy(&mAttributes, pAttributes, sizeof(audio_attributes_t));
-        ALOGV("Building AudioRecord with attributes: source=%d flags=0x%x tags=[%s]",
-              mAttributes.source, mAttributes.flags, mAttributes.tags);
-    }
-
-    mSampleRate = sampleRate;
-
-    // these below should probably come from the audioFlinger too...
-    if (format == AUDIO_FORMAT_DEFAULT) {
-        format = AUDIO_FORMAT_PCM_16_BIT;
-    }
-
-    // validate parameters
-    // AudioFlinger capture only supports linear PCM
-    if (!audio_is_valid_format(format) || !audio_is_linear_pcm(format)) {
-        ALOGE("Format %#x is not linear pcm", format);
-        return BAD_VALUE;
-    }
-    mFormat = format;
-
-    if (!audio_is_input_channel(channelMask)) {
-        ALOGE("Invalid channel mask %#x", channelMask);
-        return BAD_VALUE;
-    }
-    mChannelMask = channelMask;
-    uint32_t channelCount = audio_channel_count_from_in_mask(channelMask);
-    mChannelCount = channelCount;
-
-    if (audio_is_linear_pcm(format)) {
-        mFrameSize = channelCount * audio_bytes_per_sample(format);
-    } else {
-        mFrameSize = sizeof(uint8_t);
-    }
-
-    // mFrameCount is initialized in openRecord_l
-    mReqFrameCount = frameCount;
-
-    mNotificationFramesReq = notificationFrames;
-    // mNotificationFramesAct is initialized in openRecord_l
-
-    if (sessionId == AUDIO_SESSION_ALLOCATE) {
-        mSessionId = (audio_session_t) AudioSystem::newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
-    } else {
-        mSessionId = sessionId;
-    }
-    ALOGV("set(): mSessionId %d", mSessionId);
-
-    int callingpid = IPCThreadState::self()->getCallingPid();
-    int mypid = getpid();
-    if (uid == -1 || (callingpid != mypid)) {
-        mClientUid = IPCThreadState::self()->getCallingUid();
-    } else {
-        mClientUid = uid;
-    }
-    if (pid == -1 || (callingpid != mypid)) {
-        mClientPid = callingpid;
-    } else {
-        mClientPid = pid;
-    }
-
-    mOrigFlags = mFlags = flags;
-    mCbf = cbf;
-
-    if (cbf != NULL) {
-        mAudioRecordThread = new AudioRecordThread(*this, threadCanCallJava);
-        mAudioRecordThread->run("AudioRecord", ANDROID_PRIORITY_AUDIO);
-        // thread begins in paused state, and will not reference us until start()
-    }
-
-    // create the IAudioRecord
-    status_t status = openRecord_l(0 /*epoch*/, mOpPackageName);
-
-    if (status != NO_ERROR) {
-        if (mAudioRecordThread != 0) {
-            mAudioRecordThread->requestExit();   // see comment in AudioRecord.h
-            mAudioRecordThread->requestExitAndWait();
-            mAudioRecordThread.clear();
-        }
-        return status;
-    }
-
-    mStatus = NO_ERROR;
-    mUserData = user;
-    // TODO: add audio hardware input latency here
-    mLatency = (1000 * mFrameCount) / mSampleRate;
-    mMarkerPosition = 0;
-    mMarkerReached = false;
-    mNewPosition = 0;
-    mUpdatePeriod = 0;
-    AudioSystem::acquireAudioSessionId(mSessionId, -1);
-    mSequence = 1;
-    mObservedSequence = mSequence;
-    mInOverrun = false;
-    mFramesRead = 0;
-    mFramesReadServerOffset = 0;
-
-    return NO_ERROR;
-}
-
-// -------------------------------------------------------------------------
-
-status_t AudioRecord::start(AudioSystem::sync_event_t event, audio_session_t triggerSession)
-{
-    ALOGV("start, sync event %d trigger session %d", event, triggerSession);
-
-    AutoMutex lock(mLock);
-    if (mActive) {
-        return NO_ERROR;
-    }
-
-    // discard data in buffer
-    const uint32_t framesFlushed = mProxy->flush();
-    mFramesReadServerOffset -= mFramesRead + framesFlushed;
-    mFramesRead = 0;
-    mProxy->clearTimestamp();  // timestamp is invalid until next server push
-
-    // reset current position as seen by client to 0
-    mProxy->setEpoch(mProxy->getEpoch() - mProxy->getPosition());
-    // force refresh of remaining frames by processAudioBuffer() as last
-    // read before stop could be partial.
-    mRefreshRemaining = true;
-
-    mNewPosition = mProxy->getPosition() + mUpdatePeriod;
-    int32_t flags = android_atomic_acquire_load(&mCblk->mFlags);
-
-    // we reactivate markers (mMarkerPosition != 0) as the position is reset to 0.
-    // This is legacy behavior.  This is not done in stop() to avoid a race condition
-    // where the last marker event is issued twice.
-    mMarkerReached = false;
-    mActive = true;
-
-    status_t status = NO_ERROR;
-    if (!(flags & CBLK_INVALID)) {
-        status = mAudioRecord->start(event, triggerSession);
-        if (status == DEAD_OBJECT) {
-            flags |= CBLK_INVALID;
-        }
-    }
-    if (flags & CBLK_INVALID) {
-        status = restoreRecord_l("start");
-    }
-
-    if (status != NO_ERROR) {
-        mActive = false;
-        ALOGE("start() status %d", status);
-    } else {
-        sp<AudioRecordThread> t = mAudioRecordThread;
-        if (t != 0) {
-            t->resume();
-        } else {
-            mPreviousPriority = getpriority(PRIO_PROCESS, 0);
-            get_sched_policy(0, &mPreviousSchedulingGroup);
-            androidSetThreadPriority(0, ANDROID_PRIORITY_AUDIO);
-        }
-    }
-
-    return status;
-}
-
-void AudioRecord::stop()
-{
-    AutoMutex lock(mLock);
-    if (!mActive) {
-        return;
-    }
-
-    mActive = false;
-    mProxy->interrupt();
-    mAudioRecord->stop();
-
-    // Note: legacy handling - stop does not clear record marker and
-    // periodic update position; we update those on start().
-
-    sp<AudioRecordThread> t = mAudioRecordThread;
-    if (t != 0) {
-        t->pause();
-    } else {
-        setpriority(PRIO_PROCESS, 0, mPreviousPriority);
-        set_sched_policy(0, mPreviousSchedulingGroup);
-    }
-}
-
-bool AudioRecord::stopped() const
-{
-    AutoMutex lock(mLock);
-    return !mActive;
-}
-
-status_t AudioRecord::setMarkerPosition(uint32_t marker)
-{
-    // The only purpose of setting marker position is to get a callback
-    if (mCbf == NULL) {
-        return INVALID_OPERATION;
-    }
-
-    AutoMutex lock(mLock);
-    mMarkerPosition = marker;
-    mMarkerReached = false;
-
-    sp<AudioRecordThread> t = mAudioRecordThread;
-    if (t != 0) {
-        t->wake();
-    }
-    return NO_ERROR;
-}
-
-status_t AudioRecord::getMarkerPosition(uint32_t *marker) const
-{
-    if (marker == NULL) {
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    mMarkerPosition.getValue(marker);
-
-    return NO_ERROR;
-}
-
-status_t AudioRecord::setPositionUpdatePeriod(uint32_t updatePeriod)
-{
-    // The only purpose of setting position update period is to get a callback
-    if (mCbf == NULL) {
-        return INVALID_OPERATION;
-    }
-
-    AutoMutex lock(mLock);
-    mNewPosition = mProxy->getPosition() + updatePeriod;
-    mUpdatePeriod = updatePeriod;
-
-    sp<AudioRecordThread> t = mAudioRecordThread;
-    if (t != 0) {
-        t->wake();
-    }
-    return NO_ERROR;
-}
-
-status_t AudioRecord::getPositionUpdatePeriod(uint32_t *updatePeriod) const
-{
-    if (updatePeriod == NULL) {
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    *updatePeriod = mUpdatePeriod;
-
-    return NO_ERROR;
-}
-
-status_t AudioRecord::getPosition(uint32_t *position) const
-{
-    if (position == NULL) {
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    mProxy->getPosition().getValue(position);
-
-    return NO_ERROR;
-}
-
-uint32_t AudioRecord::getInputFramesLost() const
-{
-    // no need to check mActive, because if inactive this will return 0, which is what we want
-    return AudioSystem::getInputFramesLost(getInputPrivate());
-}
-
-status_t AudioRecord::getTimestamp(ExtendedTimestamp *timestamp)
-{
-    if (timestamp == nullptr) {
-        return BAD_VALUE;
-    }
-    AutoMutex lock(mLock);
-    status_t status = mProxy->getTimestamp(timestamp);
-    if (status == OK) {
-        timestamp->mPosition[ExtendedTimestamp::LOCATION_CLIENT] = mFramesRead;
-        timestamp->mTimeNs[ExtendedTimestamp::LOCATION_CLIENT] = 0;
-        // server side frame offset in case AudioRecord has been restored.
-        for (int i = ExtendedTimestamp::LOCATION_SERVER;
-                i < ExtendedTimestamp::LOCATION_MAX; ++i) {
-            if (timestamp->mTimeNs[i] >= 0) {
-                timestamp->mPosition[i] += mFramesReadServerOffset;
-            }
-        }
-    }
-    return status;
-}
-
-// ---- Explicit Routing ---------------------------------------------------
-status_t AudioRecord::setInputDevice(audio_port_handle_t deviceId) {
-    AutoMutex lock(mLock);
-    if (mSelectedDeviceId != deviceId) {
-        mSelectedDeviceId = deviceId;
-        // stop capture so that audio policy manager does not reject the new instance start request
-        // as only one capture can be active at a time.
-        if (mAudioRecord != 0 && mActive) {
-            mAudioRecord->stop();
-        }
-        android_atomic_or(CBLK_INVALID, &mCblk->mFlags);
-    }
-    return NO_ERROR;
-}
-
-audio_port_handle_t AudioRecord::getInputDevice() {
-    AutoMutex lock(mLock);
-    return mSelectedDeviceId;
-}
-
-audio_port_handle_t AudioRecord::getRoutedDeviceId() {
-    AutoMutex lock(mLock);
-    if (mInput == AUDIO_IO_HANDLE_NONE) {
-        return AUDIO_PORT_HANDLE_NONE;
-    }
-    return AudioSystem::getDeviceIdForIo(mInput);
-}
-
-// -------------------------------------------------------------------------
-
-// must be called with mLock held
-status_t AudioRecord::openRecord_l(const Modulo<uint32_t> &epoch, const String16& opPackageName)
-{
-    const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger();
-    if (audioFlinger == 0) {
-        ALOGE("Could not get audioflinger");
-        return NO_INIT;
-    }
-
-    if (mDeviceCallback != 0 && mInput != AUDIO_IO_HANDLE_NONE) {
-        AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput);
-    }
-    audio_io_handle_t input;
-
-    // mFlags (not mOrigFlags) is modified depending on whether fast request is accepted.
-    // After fast request is denied, we will request again if IAudioRecord is re-created.
-
-    status_t status;
-
-    // Not a conventional loop, but a retry loop for at most two iterations total.
-    // Try first maybe with FAST flag then try again without FAST flag if that fails.
-    // Exits loop normally via a return at the bottom, or with error via a break.
-    // The sp<> references will be dropped when re-entering scope.
-    // The lack of indentation is deliberate, to reduce code churn and ease merges.
-    for (;;) {
-
-    status = AudioSystem::getInputForAttr(&mAttributes, &input,
-                                        mSessionId,
-                                        // FIXME compare to AudioTrack
-                                        mClientPid,
-                                        mClientUid,
-                                        mSampleRate, mFormat, mChannelMask,
-                                        mFlags, mSelectedDeviceId);
-
-    if (status != NO_ERROR || input == AUDIO_IO_HANDLE_NONE) {
-        ALOGE("Could not get audio input for session %d, record source %d, sample rate %u, "
-              "format %#x, channel mask %#x, flags %#x",
-              mSessionId, mAttributes.source, mSampleRate, mFormat, mChannelMask, mFlags);
-        return BAD_VALUE;
-    }
-
-    // Now that we have a reference to an I/O handle and have not yet handed it off to AudioFlinger,
-    // we must release it ourselves if anything goes wrong.
-
-#if 0
-    size_t afFrameCount;
-    status = AudioSystem::getFrameCount(input, &afFrameCount);
-    if (status != NO_ERROR) {
-        ALOGE("getFrameCount(input=%d) status %d", input, status);
-        break;
-    }
-#endif
-
-    uint32_t afSampleRate;
-    status = AudioSystem::getSamplingRate(input, &afSampleRate);
-    if (status != NO_ERROR) {
-        ALOGE("getSamplingRate(input=%d) status %d", input, status);
-        break;
-    }
-    if (mSampleRate == 0) {
-        mSampleRate = afSampleRate;
-    }
-
-    // Client can only express a preference for FAST.  Server will perform additional tests.
-    if (mFlags & AUDIO_INPUT_FLAG_FAST) {
-        bool useCaseAllowed =
-            // either of these use cases:
-            // use case 1: callback transfer mode
-            (mTransfer == TRANSFER_CALLBACK) ||
-            // use case 2: obtain/release mode
-            (mTransfer == TRANSFER_OBTAIN);
-        // sample rates must also match
-        bool fastAllowed = useCaseAllowed && (mSampleRate == afSampleRate);
-        if (!fastAllowed) {
-            ALOGW("AUDIO_INPUT_FLAG_FAST denied by client; transfer %d, "
-                "track %u Hz, input %u Hz",
-                mTransfer, mSampleRate, afSampleRate);
-            mFlags = (audio_input_flags_t) (mFlags & ~(AUDIO_INPUT_FLAG_FAST |
-                    AUDIO_INPUT_FLAG_RAW));
-            AudioSystem::releaseInput(input, mSessionId);
-            continue;   // retry
-        }
-    }
-
-    // The notification frame count is the period between callbacks, as suggested by the client
-    // but moderated by the server.  For record, the calculations are done entirely on server side.
-    size_t notificationFrames = mNotificationFramesReq;
-    size_t frameCount = mReqFrameCount;
-
-    audio_input_flags_t flags = mFlags;
-
-    pid_t tid = -1;
-    if (mFlags & AUDIO_INPUT_FLAG_FAST) {
-        if (mAudioRecordThread != 0) {
-            tid = mAudioRecordThread->getTid();
-        }
-    }
-
-    size_t temp = frameCount;   // temp may be replaced by a revised value of frameCount,
-                                // but we will still need the original value also
-    audio_session_t originalSessionId = mSessionId;
-
-    sp<IMemory> iMem;           // for cblk
-    sp<IMemory> bufferMem;
-    sp<IAudioRecord> record = audioFlinger->openRecord(input,
-                                                       mSampleRate,
-                                                       mFormat,
-                                                       mChannelMask,
-                                                       opPackageName,
-                                                       &temp,
-                                                       &flags,
-                                                       mClientPid,
-                                                       tid,
-                                                       mClientUid,
-                                                       &mSessionId,
-                                                       &notificationFrames,
-                                                       iMem,
-                                                       bufferMem,
-                                                       &status);
-    ALOGE_IF(originalSessionId != AUDIO_SESSION_ALLOCATE && mSessionId != originalSessionId,
-            "session ID changed from %d to %d", originalSessionId, mSessionId);
-
-    if (status != NO_ERROR) {
-        ALOGE("AudioFlinger could not create record track, status: %d", status);
-        break;
-    }
-    ALOG_ASSERT(record != 0);
-
-    // AudioFlinger now owns the reference to the I/O handle,
-    // so we are no longer responsible for releasing it.
-
-    mAwaitBoost = false;
-    if (mFlags & AUDIO_INPUT_FLAG_FAST) {
-        if (flags & AUDIO_INPUT_FLAG_FAST) {
-            ALOGI("AUDIO_INPUT_FLAG_FAST successful; frameCount %zu", frameCount);
-            mAwaitBoost = true;
-        } else {
-            ALOGW("AUDIO_INPUT_FLAG_FAST denied by server; frameCount %zu", frameCount);
-            mFlags = (audio_input_flags_t) (mFlags & ~(AUDIO_INPUT_FLAG_FAST |
-                    AUDIO_INPUT_FLAG_RAW));
-            continue;   // retry
-        }
-    }
-    mFlags = flags;
-
-    if (iMem == 0) {
-        ALOGE("Could not get control block");
-        return NO_INIT;
-    }
-    void *iMemPointer = iMem->pointer();
-    if (iMemPointer == NULL) {
-        ALOGE("Could not get control block pointer");
-        return NO_INIT;
-    }
-    audio_track_cblk_t* cblk = static_cast<audio_track_cblk_t*>(iMemPointer);
-
-    // Starting address of buffers in shared memory.
-    // The buffers are either immediately after the control block,
-    // or in a separate area at discretion of server.
-    void *buffers;
-    if (bufferMem == 0) {
-        buffers = cblk + 1;
-    } else {
-        buffers = bufferMem->pointer();
-        if (buffers == NULL) {
-            ALOGE("Could not get buffer pointer");
-            return NO_INIT;
-        }
-    }
-
-    // invariant that mAudioRecord != 0 is true only after set() returns successfully
-    if (mAudioRecord != 0) {
-        IInterface::asBinder(mAudioRecord)->unlinkToDeath(mDeathNotifier, this);
-        mDeathNotifier.clear();
-    }
-    mAudioRecord = record;
-    mCblkMemory = iMem;
-    mBufferMemory = bufferMem;
-    IPCThreadState::self()->flushCommands();
-
-    mCblk = cblk;
-    // note that temp is the (possibly revised) value of frameCount
-    if (temp < frameCount || (frameCount == 0 && temp == 0)) {
-        ALOGW("Requested frameCount %zu but received frameCount %zu", frameCount, temp);
-    }
-    frameCount = temp;
-
-    // Make sure that application is notified with sufficient margin before overrun.
-    // The computation is done on server side.
-    if (mNotificationFramesReq > 0 && notificationFrames != mNotificationFramesReq) {
-        ALOGW("Server adjusted notificationFrames from %u to %zu for frameCount %zu",
-                mNotificationFramesReq, notificationFrames, frameCount);
-    }
-    mNotificationFramesAct = (uint32_t) notificationFrames;
-
-    // We retain a copy of the I/O handle, but don't own the reference
-    mInput = input;
-    mRefreshRemaining = true;
-
-    mFrameCount = frameCount;
-    // If IAudioRecord is re-created, don't let the requested frameCount
-    // decrease.  This can confuse clients that cache frameCount().
-    if (frameCount > mReqFrameCount) {
-        mReqFrameCount = frameCount;
-    }
-
-    // update proxy
-    mProxy = new AudioRecordClientProxy(cblk, buffers, mFrameCount, mFrameSize);
-    mProxy->setEpoch(epoch);
-    mProxy->setMinimum(mNotificationFramesAct);
-
-    mDeathNotifier = new DeathNotifier(this);
-    IInterface::asBinder(mAudioRecord)->linkToDeath(mDeathNotifier, this);
-
-    if (mDeviceCallback != 0) {
-        AudioSystem::addAudioDeviceCallback(mDeviceCallback, mInput);
-    }
-
-    return NO_ERROR;
-
-    // End of retry loop.
-    // The lack of indentation is deliberate, to reduce code churn and ease merges.
-    }
-
-// Arrive here on error, via a break
-    AudioSystem::releaseInput(input, mSessionId);
-    if (status == NO_ERROR) {
-        status = NO_INIT;
-    }
-    return status;
-}
-
-status_t AudioRecord::obtainBuffer(Buffer* audioBuffer, int32_t waitCount, size_t *nonContig)
-{
-    if (audioBuffer == NULL) {
-        if (nonContig != NULL) {
-            *nonContig = 0;
-        }
-        return BAD_VALUE;
-    }
-    if (mTransfer != TRANSFER_OBTAIN) {
-        audioBuffer->frameCount = 0;
-        audioBuffer->size = 0;
-        audioBuffer->raw = NULL;
-        if (nonContig != NULL) {
-            *nonContig = 0;
-        }
-        return INVALID_OPERATION;
-    }
-
-    const struct timespec *requested;
-    struct timespec timeout;
-    if (waitCount == -1) {
-        requested = &ClientProxy::kForever;
-    } else if (waitCount == 0) {
-        requested = &ClientProxy::kNonBlocking;
-    } else if (waitCount > 0) {
-        long long ms = WAIT_PERIOD_MS * (long long) waitCount;
-        timeout.tv_sec = ms / 1000;
-        timeout.tv_nsec = (int) (ms % 1000) * 1000000;
-        requested = &timeout;
-    } else {
-        ALOGE("%s invalid waitCount %d", __func__, waitCount);
-        requested = NULL;
-    }
-    return obtainBuffer(audioBuffer, requested, NULL /*elapsed*/, nonContig);
-}
-
-status_t AudioRecord::obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
-        struct timespec *elapsed, size_t *nonContig)
-{
-    // previous and new IAudioRecord sequence numbers are used to detect track re-creation
-    uint32_t oldSequence = 0;
-    uint32_t newSequence;
-
-    Proxy::Buffer buffer;
-    status_t status = NO_ERROR;
-
-    static const int32_t kMaxTries = 5;
-    int32_t tryCounter = kMaxTries;
-
-    do {
-        // obtainBuffer() is called with mutex unlocked, so keep extra references to these fields to
-        // keep them from going away if another thread re-creates the track during obtainBuffer()
-        sp<AudioRecordClientProxy> proxy;
-        sp<IMemory> iMem;
-        sp<IMemory> bufferMem;
-        {
-            // start of lock scope
-            AutoMutex lock(mLock);
-
-            newSequence = mSequence;
-            // did previous obtainBuffer() fail due to media server death or voluntary invalidation?
-            if (status == DEAD_OBJECT) {
-                // re-create track, unless someone else has already done so
-                if (newSequence == oldSequence) {
-                    status = restoreRecord_l("obtainBuffer");
-                    if (status != NO_ERROR) {
-                        buffer.mFrameCount = 0;
-                        buffer.mRaw = NULL;
-                        buffer.mNonContig = 0;
-                        break;
-                    }
-                }
-            }
-            oldSequence = newSequence;
-
-            // Keep the extra references
-            proxy = mProxy;
-            iMem = mCblkMemory;
-            bufferMem = mBufferMemory;
-
-            // Non-blocking if track is stopped
-            if (!mActive) {
-                requested = &ClientProxy::kNonBlocking;
-            }
-
-        }   // end of lock scope
-
-        buffer.mFrameCount = audioBuffer->frameCount;
-        // FIXME starts the requested timeout and elapsed over from scratch
-        status = proxy->obtainBuffer(&buffer, requested, elapsed);
-
-    } while ((status == DEAD_OBJECT) && (tryCounter-- > 0));
-
-    audioBuffer->frameCount = buffer.mFrameCount;
-    audioBuffer->size = buffer.mFrameCount * mFrameSize;
-    audioBuffer->raw = buffer.mRaw;
-    if (nonContig != NULL) {
-        *nonContig = buffer.mNonContig;
-    }
-    return status;
-}
-
-void AudioRecord::releaseBuffer(const Buffer* audioBuffer)
-{
-    // FIXME add error checking on mode, by adding an internal version
-
-    size_t stepCount = audioBuffer->size / mFrameSize;
-    if (stepCount == 0) {
-        return;
-    }
-
-    Proxy::Buffer buffer;
-    buffer.mFrameCount = stepCount;
-    buffer.mRaw = audioBuffer->raw;
-
-    AutoMutex lock(mLock);
-    mInOverrun = false;
-    mProxy->releaseBuffer(&buffer);
-
-    // the server does not automatically disable recorder on overrun, so no need to restart
-}
-
-audio_io_handle_t AudioRecord::getInputPrivate() const
-{
-    AutoMutex lock(mLock);
-    return mInput;
-}
-
-// -------------------------------------------------------------------------
-
-ssize_t AudioRecord::read(void* buffer, size_t userSize, bool blocking)
-{
-    if (mTransfer != TRANSFER_SYNC) {
-        return INVALID_OPERATION;
-    }
-
-    if (ssize_t(userSize) < 0 || (buffer == NULL && userSize != 0)) {
-        // sanity-check. user is most-likely passing an error code, and it would
-        // make the return value ambiguous (actualSize vs error).
-        ALOGE("AudioRecord::read(buffer=%p, size=%zu (%zu)", buffer, userSize, userSize);
-        return BAD_VALUE;
-    }
-
-    ssize_t read = 0;
-    Buffer audioBuffer;
-
-    while (userSize >= mFrameSize) {
-        audioBuffer.frameCount = userSize / mFrameSize;
-
-        status_t err = obtainBuffer(&audioBuffer,
-                blocking ? &ClientProxy::kForever : &ClientProxy::kNonBlocking);
-        if (err < 0) {
-            if (read > 0) {
-                break;
-            }
-            if (err == TIMED_OUT || err == -EINTR) {
-                err = WOULD_BLOCK;
-            }
-            return ssize_t(err);
-        }
-
-        size_t bytesRead = audioBuffer.size;
-        memcpy(buffer, audioBuffer.i8, bytesRead);
-        buffer = ((char *) buffer) + bytesRead;
-        userSize -= bytesRead;
-        read += bytesRead;
-
-        releaseBuffer(&audioBuffer);
-    }
-    if (read > 0) {
-        mFramesRead += read / mFrameSize;
-        // mFramesReadTime = systemTime(SYSTEM_TIME_MONOTONIC); // not provided at this time.
-    }
-    return read;
-}
-
-// -------------------------------------------------------------------------
-
-nsecs_t AudioRecord::processAudioBuffer()
-{
-    mLock.lock();
-    if (mAwaitBoost) {
-        mAwaitBoost = false;
-        mLock.unlock();
-        static const int32_t kMaxTries = 5;
-        int32_t tryCounter = kMaxTries;
-        uint32_t pollUs = 10000;
-        do {
-            int policy = sched_getscheduler(0) & ~SCHED_RESET_ON_FORK;
-            if (policy == SCHED_FIFO || policy == SCHED_RR) {
-                break;
-            }
-            usleep(pollUs);
-            pollUs <<= 1;
-        } while (tryCounter-- > 0);
-        if (tryCounter < 0) {
-            ALOGE("did not receive expected priority boost on time");
-        }
-        // Run again immediately
-        return 0;
-    }
-
-    // Can only reference mCblk while locked
-    int32_t flags = android_atomic_and(~CBLK_OVERRUN, &mCblk->mFlags);
-
-    // Check for track invalidation
-    if (flags & CBLK_INVALID) {
-        (void) restoreRecord_l("processAudioBuffer");
-        mLock.unlock();
-        // Run again immediately, but with a new IAudioRecord
-        return 0;
-    }
-
-    bool active = mActive;
-
-    // Manage overrun callback, must be done under lock to avoid race with releaseBuffer()
-    bool newOverrun = false;
-    if (flags & CBLK_OVERRUN) {
-        if (!mInOverrun) {
-            mInOverrun = true;
-            newOverrun = true;
-        }
-    }
-
-    // Get current position of server
-    Modulo<uint32_t> position(mProxy->getPosition());
-
-    // Manage marker callback
-    bool markerReached = false;
-    Modulo<uint32_t> markerPosition(mMarkerPosition);
-    // FIXME fails for wraparound, need 64 bits
-    if (!mMarkerReached && markerPosition.value() > 0 && position >= markerPosition) {
-        mMarkerReached = markerReached = true;
-    }
-
-    // Determine the number of new position callback(s) that will be needed, while locked
-    size_t newPosCount = 0;
-    Modulo<uint32_t> newPosition(mNewPosition);
-    uint32_t updatePeriod = mUpdatePeriod;
-    // FIXME fails for wraparound, need 64 bits
-    if (updatePeriod > 0 && position >= newPosition) {
-        newPosCount = ((position - newPosition).value() / updatePeriod) + 1;
-        mNewPosition += updatePeriod * newPosCount;
-    }
-
-    // Cache other fields that will be needed soon
-    uint32_t notificationFrames = mNotificationFramesAct;
-    if (mRefreshRemaining) {
-        mRefreshRemaining = false;
-        mRemainingFrames = notificationFrames;
-        mRetryOnPartialBuffer = false;
-    }
-    size_t misalignment = mProxy->getMisalignment();
-    uint32_t sequence = mSequence;
-
-    // These fields don't need to be cached, because they are assigned only by set():
-    //      mTransfer, mCbf, mUserData, mSampleRate, mFrameSize
-
-    mLock.unlock();
-
-    // perform callbacks while unlocked
-    if (newOverrun) {
-        mCbf(EVENT_OVERRUN, mUserData, NULL);
-    }
-    if (markerReached) {
-        mCbf(EVENT_MARKER, mUserData, &markerPosition);
-    }
-    while (newPosCount > 0) {
-        size_t temp = newPosition.value(); // FIXME size_t != uint32_t
-        mCbf(EVENT_NEW_POS, mUserData, &temp);
-        newPosition += updatePeriod;
-        newPosCount--;
-    }
-    if (mObservedSequence != sequence) {
-        mObservedSequence = sequence;
-        mCbf(EVENT_NEW_IAUDIORECORD, mUserData, NULL);
-    }
-
-    // if inactive, then don't run me again until re-started
-    if (!active) {
-        return NS_INACTIVE;
-    }
-
-    // Compute the estimated time until the next timed event (position, markers)
-    uint32_t minFrames = ~0;
-    if (!markerReached && position < markerPosition) {
-        minFrames = (markerPosition - position).value();
-    }
-    if (updatePeriod > 0) {
-        uint32_t remaining = (newPosition - position).value();
-        if (remaining < minFrames) {
-            minFrames = remaining;
-        }
-    }
-
-    // If > 0, poll periodically to recover from a stuck server.  A good value is 2.
-    static const uint32_t kPoll = 0;
-    if (kPoll > 0 && mTransfer == TRANSFER_CALLBACK && kPoll * notificationFrames < minFrames) {
-        minFrames = kPoll * notificationFrames;
-    }
-
-    // Convert frame units to time units
-    nsecs_t ns = NS_WHENEVER;
-    if (minFrames != (uint32_t) ~0) {
-        // This "fudge factor" avoids soaking CPU, and compensates for late progress by server
-        static const nsecs_t kFudgeNs = 10000000LL; // 10 ms
-        ns = ((minFrames * 1000000000LL) / mSampleRate) + kFudgeNs;
-    }
-
-    // If not supplying data by EVENT_MORE_DATA, then we're done
-    if (mTransfer != TRANSFER_CALLBACK) {
-        return ns;
-    }
-
-    struct timespec timeout;
-    const struct timespec *requested = &ClientProxy::kForever;
-    if (ns != NS_WHENEVER) {
-        timeout.tv_sec = ns / 1000000000LL;
-        timeout.tv_nsec = ns % 1000000000LL;
-        ALOGV("timeout %ld.%03d", timeout.tv_sec, (int) timeout.tv_nsec / 1000000);
-        requested = &timeout;
-    }
-
-    size_t readFrames = 0;
-    while (mRemainingFrames > 0) {
-
-        Buffer audioBuffer;
-        audioBuffer.frameCount = mRemainingFrames;
-        size_t nonContig;
-        status_t err = obtainBuffer(&audioBuffer, requested, NULL, &nonContig);
-        LOG_ALWAYS_FATAL_IF((err != NO_ERROR) != (audioBuffer.frameCount == 0),
-                "obtainBuffer() err=%d frameCount=%zu", err, audioBuffer.frameCount);
-        requested = &ClientProxy::kNonBlocking;
-        size_t avail = audioBuffer.frameCount + nonContig;
-        ALOGV("obtainBuffer(%u) returned %zu = %zu + %zu err %d",
-                mRemainingFrames, avail, audioBuffer.frameCount, nonContig, err);
-        if (err != NO_ERROR) {
-            if (err == TIMED_OUT || err == WOULD_BLOCK || err == -EINTR) {
-                break;
-            }
-            ALOGE("Error %d obtaining an audio buffer, giving up.", err);
-            return NS_NEVER;
-        }
-
-        if (mRetryOnPartialBuffer) {
-            mRetryOnPartialBuffer = false;
-            if (avail < mRemainingFrames) {
-                int64_t myns = ((mRemainingFrames - avail) *
-                        1100000000LL) / mSampleRate;
-                if (ns < 0 || myns < ns) {
-                    ns = myns;
-                }
-                return ns;
-            }
-        }
-
-        size_t reqSize = audioBuffer.size;
-        mCbf(EVENT_MORE_DATA, mUserData, &audioBuffer);
-        size_t readSize = audioBuffer.size;
-
-        // Sanity check on returned size
-        if (ssize_t(readSize) < 0 || readSize > reqSize) {
-            ALOGE("EVENT_MORE_DATA requested %zu bytes but callback returned %zd bytes",
-                    reqSize, ssize_t(readSize));
-            return NS_NEVER;
-        }
-
-        if (readSize == 0) {
-            // The callback is done consuming buffers
-            // Keep this thread going to handle timed events and
-            // still try to provide more data in intervals of WAIT_PERIOD_MS
-            // but don't just loop and block the CPU, so wait
-            return WAIT_PERIOD_MS * 1000000LL;
-        }
-
-        size_t releasedFrames = readSize / mFrameSize;
-        audioBuffer.frameCount = releasedFrames;
-        mRemainingFrames -= releasedFrames;
-        if (misalignment >= releasedFrames) {
-            misalignment -= releasedFrames;
-        } else {
-            misalignment = 0;
-        }
-
-        releaseBuffer(&audioBuffer);
-        readFrames += releasedFrames;
-
-        // FIXME here is where we would repeat EVENT_MORE_DATA again on same advanced buffer
-        // if callback doesn't like to accept the full chunk
-        if (readSize < reqSize) {
-            continue;
-        }
-
-        // There could be enough non-contiguous frames available to satisfy the remaining request
-        if (mRemainingFrames <= nonContig) {
-            continue;
-        }
-
-#if 0
-        // This heuristic tries to collapse a series of EVENT_MORE_DATA that would total to a
-        // sum <= notificationFrames.  It replaces that series by at most two EVENT_MORE_DATA
-        // that total to a sum == notificationFrames.
-        if (0 < misalignment && misalignment <= mRemainingFrames) {
-            mRemainingFrames = misalignment;
-            return (mRemainingFrames * 1100000000LL) / mSampleRate;
-        }
-#endif
-
-    }
-    if (readFrames > 0) {
-        AutoMutex lock(mLock);
-        mFramesRead += readFrames;
-        // mFramesReadTime = systemTime(SYSTEM_TIME_MONOTONIC); // not provided at this time.
-    }
-    mRemainingFrames = notificationFrames;
-    mRetryOnPartialBuffer = true;
-
-    // A lot has transpired since ns was calculated, so run again immediately and re-calculate
-    return 0;
-}
-
-status_t AudioRecord::restoreRecord_l(const char *from)
-{
-    ALOGW("dead IAudioRecord, creating a new one from %s()", from);
-    ++mSequence;
-
-    mFlags = mOrigFlags;
-
-    // if the new IAudioRecord is created, openRecord_l() will modify the
-    // following member variables: mAudioRecord, mCblkMemory, mCblk, mBufferMemory.
-    // It will also delete the strong references on previous IAudioRecord and IMemory
-    Modulo<uint32_t> position(mProxy->getPosition());
-    mNewPosition = position + mUpdatePeriod;
-    status_t result = openRecord_l(position, mOpPackageName);
-    if (result == NO_ERROR) {
-        if (mActive) {
-            // callback thread or sync event hasn't changed
-            // FIXME this fails if we have a new AudioFlinger instance
-            result = mAudioRecord->start(AudioSystem::SYNC_EVENT_SAME, AUDIO_SESSION_NONE);
-        }
-        mFramesReadServerOffset = mFramesRead; // server resets to zero so we need an offset.
-    }
-    if (result != NO_ERROR) {
-        ALOGW("restoreRecord_l() failed status %d", result);
-        mActive = false;
-    }
-
-    return result;
-}
-
-status_t AudioRecord::addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback)
-{
-    if (callback == 0) {
-        ALOGW("%s adding NULL callback!", __FUNCTION__);
-        return BAD_VALUE;
-    }
-    AutoMutex lock(mLock);
-    if (mDeviceCallback == callback) {
-        ALOGW("%s adding same callback!", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
-    status_t status = NO_ERROR;
-    if (mInput != AUDIO_IO_HANDLE_NONE) {
-        if (mDeviceCallback != 0) {
-            ALOGW("%s callback already present!", __FUNCTION__);
-            AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput);
-        }
-        status = AudioSystem::addAudioDeviceCallback(callback, mInput);
-    }
-    mDeviceCallback = callback;
-    return status;
-}
-
-status_t AudioRecord::removeAudioDeviceCallback(
-        const sp<AudioSystem::AudioDeviceCallback>& callback)
-{
-    if (callback == 0) {
-        ALOGW("%s removing NULL callback!", __FUNCTION__);
-        return BAD_VALUE;
-    }
-    AutoMutex lock(mLock);
-    if (mDeviceCallback != callback) {
-        ALOGW("%s removing different callback!", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
-    if (mInput != AUDIO_IO_HANDLE_NONE) {
-        AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput);
-    }
-    mDeviceCallback = 0;
-    return NO_ERROR;
-}
-
-// =========================================================================
-
-void AudioRecord::DeathNotifier::binderDied(const wp<IBinder>& who __unused)
-{
-    sp<AudioRecord> audioRecord = mAudioRecord.promote();
-    if (audioRecord != 0) {
-        AutoMutex lock(audioRecord->mLock);
-        audioRecord->mProxy->binderDied();
-    }
-}
-
-// =========================================================================
-
-AudioRecord::AudioRecordThread::AudioRecordThread(AudioRecord& receiver, bool bCanCallJava)
-    : Thread(bCanCallJava), mReceiver(receiver), mPaused(true), mPausedInt(false), mPausedNs(0LL),
-      mIgnoreNextPausedInt(false)
-{
-}
-
-AudioRecord::AudioRecordThread::~AudioRecordThread()
-{
-}
-
-bool AudioRecord::AudioRecordThread::threadLoop()
-{
-    {
-        AutoMutex _l(mMyLock);
-        if (mPaused) {
-            mMyCond.wait(mMyLock);
-            // caller will check for exitPending()
-            return true;
-        }
-        if (mIgnoreNextPausedInt) {
-            mIgnoreNextPausedInt = false;
-            mPausedInt = false;
-        }
-        if (mPausedInt) {
-            if (mPausedNs > 0) {
-                (void) mMyCond.waitRelative(mMyLock, mPausedNs);
-            } else {
-                mMyCond.wait(mMyLock);
-            }
-            mPausedInt = false;
-            return true;
-        }
-    }
-    if (exitPending()) {
-        return false;
-    }
-    nsecs_t ns =  mReceiver.processAudioBuffer();
-    switch (ns) {
-    case 0:
-        return true;
-    case NS_INACTIVE:
-        pauseInternal();
-        return true;
-    case NS_NEVER:
-        return false;
-    case NS_WHENEVER:
-        // Event driven: call wake() when callback notifications conditions change.
-        ns = INT64_MAX;
-        // fall through
-    default:
-        LOG_ALWAYS_FATAL_IF(ns < 0, "processAudioBuffer() returned %" PRId64, ns);
-        pauseInternal(ns);
-        return true;
-    }
-}
-
-void AudioRecord::AudioRecordThread::requestExit()
-{
-    // must be in this order to avoid a race condition
-    Thread::requestExit();
-    resume();
-}
-
-void AudioRecord::AudioRecordThread::pause()
-{
-    AutoMutex _l(mMyLock);
-    mPaused = true;
-}
-
-void AudioRecord::AudioRecordThread::resume()
-{
-    AutoMutex _l(mMyLock);
-    mIgnoreNextPausedInt = true;
-    if (mPaused || mPausedInt) {
-        mPaused = false;
-        mPausedInt = false;
-        mMyCond.signal();
-    }
-}
-
-void AudioRecord::AudioRecordThread::wake()
-{
-    AutoMutex _l(mMyLock);
-    if (!mPaused) {
-        // wake() might be called while servicing a callback - ignore the next
-        // pause time and call processAudioBuffer.
-        mIgnoreNextPausedInt = true;
-        if (mPausedInt && mPausedNs > 0) {
-            // audio record is active and internally paused with timeout.
-            mPausedInt = false;
-            mMyCond.signal();
-        }
-    }
-}
-
-void AudioRecord::AudioRecordThread::pauseInternal(nsecs_t ns)
-{
-    AutoMutex _l(mMyLock);
-    mPausedInt = true;
-    mPausedNs = ns;
-}
-
-// -------------------------------------------------------------------------
-
-} // namespace android
diff --git a/media/libmedia/AudioSystem.cpp b/media/libmedia/AudioSystem.cpp
deleted file mode 100644
index 808b3ab..0000000
--- a/media/libmedia/AudioSystem.cpp
+++ /dev/null
@@ -1,1301 +0,0 @@
-/*
- * Copyright (C) 2006-2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioSystem"
-//#define LOG_NDEBUG 0
-
-#include <utils/Log.h>
-#include <binder/IServiceManager.h>
-#include <media/AudioSystem.h>
-#include <media/IAudioFlinger.h>
-#include <media/IAudioPolicyService.h>
-#include <math.h>
-
-#include <system/audio.h>
-
-// ----------------------------------------------------------------------------
-
-namespace android {
-
-// client singleton for AudioFlinger binder interface
-Mutex AudioSystem::gLock;
-Mutex AudioSystem::gLockAPS;
-sp<IAudioFlinger> AudioSystem::gAudioFlinger;
-sp<AudioSystem::AudioFlingerClient> AudioSystem::gAudioFlingerClient;
-audio_error_callback AudioSystem::gAudioErrorCallback = NULL;
-dynamic_policy_callback AudioSystem::gDynPolicyCallback = NULL;
-record_config_callback  AudioSystem::gRecordConfigCallback = NULL;
-
-
-// establish binder interface to AudioFlinger service
-const sp<IAudioFlinger> AudioSystem::get_audio_flinger()
-{
-    sp<IAudioFlinger> af;
-    sp<AudioFlingerClient> afc;
-    {
-        Mutex::Autolock _l(gLock);
-        if (gAudioFlinger == 0) {
-            sp<IServiceManager> sm = defaultServiceManager();
-            sp<IBinder> binder;
-            do {
-                binder = sm->getService(String16("media.audio_flinger"));
-                if (binder != 0)
-                    break;
-                ALOGW("AudioFlinger not published, waiting...");
-                usleep(500000); // 0.5 s
-            } while (true);
-            if (gAudioFlingerClient == NULL) {
-                gAudioFlingerClient = new AudioFlingerClient();
-            } else {
-                if (gAudioErrorCallback) {
-                    gAudioErrorCallback(NO_ERROR);
-                }
-            }
-            binder->linkToDeath(gAudioFlingerClient);
-            gAudioFlinger = interface_cast<IAudioFlinger>(binder);
-            LOG_ALWAYS_FATAL_IF(gAudioFlinger == 0);
-            afc = gAudioFlingerClient;
-        }
-        af = gAudioFlinger;
-    }
-    if (afc != 0) {
-        af->registerClient(afc);
-    }
-    return af;
-}
-
-const sp<AudioSystem::AudioFlingerClient> AudioSystem::getAudioFlingerClient()
-{
-    // calling get_audio_flinger() will initialize gAudioFlingerClient if needed
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return 0;
-    Mutex::Autolock _l(gLock);
-    return gAudioFlingerClient;
-}
-
-sp<AudioIoDescriptor> AudioSystem::getIoDescriptor(audio_io_handle_t ioHandle)
-{
-    sp<AudioIoDescriptor> desc;
-    const sp<AudioFlingerClient> afc = getAudioFlingerClient();
-    if (afc != 0) {
-        desc = afc->getIoDescriptor(ioHandle);
-    }
-    return desc;
-}
-
-/* static */ status_t AudioSystem::checkAudioFlinger()
-{
-    if (defaultServiceManager()->checkService(String16("media.audio_flinger")) != 0) {
-        return NO_ERROR;
-    }
-    return DEAD_OBJECT;
-}
-
-// FIXME Declare in binder opcode order, similarly to IAudioFlinger.h and IAudioFlinger.cpp
-
-status_t AudioSystem::muteMicrophone(bool state)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    return af->setMicMute(state);
-}
-
-status_t AudioSystem::isMicrophoneMuted(bool* state)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    *state = af->getMicMute();
-    return NO_ERROR;
-}
-
-status_t AudioSystem::setMasterVolume(float value)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    af->setMasterVolume(value);
-    return NO_ERROR;
-}
-
-status_t AudioSystem::setMasterMute(bool mute)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    af->setMasterMute(mute);
-    return NO_ERROR;
-}
-
-status_t AudioSystem::getMasterVolume(float* volume)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    *volume = af->masterVolume();
-    return NO_ERROR;
-}
-
-status_t AudioSystem::getMasterMute(bool* mute)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    *mute = af->masterMute();
-    return NO_ERROR;
-}
-
-status_t AudioSystem::setStreamVolume(audio_stream_type_t stream, float value,
-        audio_io_handle_t output)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    af->setStreamVolume(stream, value, output);
-    return NO_ERROR;
-}
-
-status_t AudioSystem::setStreamMute(audio_stream_type_t stream, bool mute)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    af->setStreamMute(stream, mute);
-    return NO_ERROR;
-}
-
-status_t AudioSystem::getStreamVolume(audio_stream_type_t stream, float* volume,
-        audio_io_handle_t output)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    *volume = af->streamVolume(stream, output);
-    return NO_ERROR;
-}
-
-status_t AudioSystem::getStreamMute(audio_stream_type_t stream, bool* mute)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_CNT) return BAD_VALUE;
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    *mute = af->streamMute(stream);
-    return NO_ERROR;
-}
-
-status_t AudioSystem::setMode(audio_mode_t mode)
-{
-    if (uint32_t(mode) >= AUDIO_MODE_CNT) return BAD_VALUE;
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    return af->setMode(mode);
-}
-
-status_t AudioSystem::setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    return af->setParameters(ioHandle, keyValuePairs);
-}
-
-String8 AudioSystem::getParameters(audio_io_handle_t ioHandle, const String8& keys)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    String8 result = String8("");
-    if (af == 0) return result;
-
-    result = af->getParameters(ioHandle, keys);
-    return result;
-}
-
-status_t AudioSystem::setParameters(const String8& keyValuePairs)
-{
-    return setParameters(AUDIO_IO_HANDLE_NONE, keyValuePairs);
-}
-
-String8 AudioSystem::getParameters(const String8& keys)
-{
-    return getParameters(AUDIO_IO_HANDLE_NONE, keys);
-}
-
-// convert volume steps to natural log scale
-
-// change this value to change volume scaling
-static const float dBPerStep = 0.5f;
-// shouldn't need to touch these
-static const float dBConvert = -dBPerStep * 2.302585093f / 20.0f;
-static const float dBConvertInverse = 1.0f / dBConvert;
-
-float AudioSystem::linearToLog(int volume)
-{
-    // float v = volume ? exp(float(100 - volume) * dBConvert) : 0;
-    // ALOGD("linearToLog(%d)=%f", volume, v);
-    // return v;
-    return volume ? exp(float(100 - volume) * dBConvert) : 0;
-}
-
-int AudioSystem::logToLinear(float volume)
-{
-    // int v = volume ? 100 - int(dBConvertInverse * log(volume) + 0.5) : 0;
-    // ALOGD("logTolinear(%d)=%f", v, volume);
-    // return v;
-    return volume ? 100 - int(dBConvertInverse * log(volume) + 0.5) : 0;
-}
-
-status_t AudioSystem::getOutputSamplingRate(uint32_t* samplingRate, audio_stream_type_t streamType)
-{
-    audio_io_handle_t output;
-
-    if (streamType == AUDIO_STREAM_DEFAULT) {
-        streamType = AUDIO_STREAM_MUSIC;
-    }
-
-    output = getOutput(streamType);
-    if (output == 0) {
-        return PERMISSION_DENIED;
-    }
-
-    return getSamplingRate(output, samplingRate);
-}
-
-status_t AudioSystem::getSamplingRate(audio_io_handle_t ioHandle,
-                                      uint32_t* samplingRate)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    sp<AudioIoDescriptor> desc = getIoDescriptor(ioHandle);
-    if (desc == 0) {
-        *samplingRate = af->sampleRate(ioHandle);
-    } else {
-        *samplingRate = desc->mSamplingRate;
-    }
-    if (*samplingRate == 0) {
-        ALOGE("AudioSystem::getSamplingRate failed for ioHandle %d", ioHandle);
-        return BAD_VALUE;
-    }
-
-    ALOGV("getSamplingRate() ioHandle %d, sampling rate %u", ioHandle, *samplingRate);
-
-    return NO_ERROR;
-}
-
-status_t AudioSystem::getOutputFrameCount(size_t* frameCount, audio_stream_type_t streamType)
-{
-    audio_io_handle_t output;
-
-    if (streamType == AUDIO_STREAM_DEFAULT) {
-        streamType = AUDIO_STREAM_MUSIC;
-    }
-
-    output = getOutput(streamType);
-    if (output == AUDIO_IO_HANDLE_NONE) {
-        return PERMISSION_DENIED;
-    }
-
-    return getFrameCount(output, frameCount);
-}
-
-status_t AudioSystem::getFrameCount(audio_io_handle_t ioHandle,
-                                    size_t* frameCount)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    sp<AudioIoDescriptor> desc = getIoDescriptor(ioHandle);
-    if (desc == 0) {
-        *frameCount = af->frameCount(ioHandle);
-    } else {
-        *frameCount = desc->mFrameCount;
-    }
-    if (*frameCount == 0) {
-        ALOGE("AudioSystem::getFrameCount failed for ioHandle %d", ioHandle);
-        return BAD_VALUE;
-    }
-
-    ALOGV("getFrameCount() ioHandle %d, frameCount %zu", ioHandle, *frameCount);
-
-    return NO_ERROR;
-}
-
-status_t AudioSystem::getOutputLatency(uint32_t* latency, audio_stream_type_t streamType)
-{
-    audio_io_handle_t output;
-
-    if (streamType == AUDIO_STREAM_DEFAULT) {
-        streamType = AUDIO_STREAM_MUSIC;
-    }
-
-    output = getOutput(streamType);
-    if (output == AUDIO_IO_HANDLE_NONE) {
-        return PERMISSION_DENIED;
-    }
-
-    return getLatency(output, latency);
-}
-
-status_t AudioSystem::getLatency(audio_io_handle_t output,
-                                 uint32_t* latency)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    sp<AudioIoDescriptor> outputDesc = getIoDescriptor(output);
-    if (outputDesc == 0) {
-        *latency = af->latency(output);
-    } else {
-        *latency = outputDesc->mLatency;
-    }
-
-    ALOGV("getLatency() output %d, latency %d", output, *latency);
-
-    return NO_ERROR;
-}
-
-status_t AudioSystem::getInputBufferSize(uint32_t sampleRate, audio_format_t format,
-        audio_channel_mask_t channelMask, size_t* buffSize)
-{
-    const sp<AudioFlingerClient> afc = getAudioFlingerClient();
-    if (afc == 0) {
-        return NO_INIT;
-    }
-    return afc->getInputBufferSize(sampleRate, format, channelMask, buffSize);
-}
-
-status_t AudioSystem::setVoiceVolume(float value)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    return af->setVoiceVolume(value);
-}
-
-status_t AudioSystem::getRenderPosition(audio_io_handle_t output, uint32_t *halFrames,
-                                        uint32_t *dspFrames)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-
-    return af->getRenderPosition(halFrames, dspFrames, output);
-}
-
-uint32_t AudioSystem::getInputFramesLost(audio_io_handle_t ioHandle)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    uint32_t result = 0;
-    if (af == 0) return result;
-    if (ioHandle == AUDIO_IO_HANDLE_NONE) return result;
-
-    result = af->getInputFramesLost(ioHandle);
-    return result;
-}
-
-audio_unique_id_t AudioSystem::newAudioUniqueId(audio_unique_id_use_t use)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return AUDIO_UNIQUE_ID_ALLOCATE;
-    return af->newAudioUniqueId(use);
-}
-
-void AudioSystem::acquireAudioSessionId(audio_session_t audioSession, pid_t pid)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af != 0) {
-        af->acquireAudioSessionId(audioSession, pid);
-    }
-}
-
-void AudioSystem::releaseAudioSessionId(audio_session_t audioSession, pid_t pid)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af != 0) {
-        af->releaseAudioSessionId(audioSession, pid);
-    }
-}
-
-audio_hw_sync_t AudioSystem::getAudioHwSyncForSession(audio_session_t sessionId)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return AUDIO_HW_SYNC_INVALID;
-    return af->getAudioHwSyncForSession(sessionId);
-}
-
-status_t AudioSystem::systemReady()
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return NO_INIT;
-    return af->systemReady();
-}
-
-status_t AudioSystem::getFrameCountHAL(audio_io_handle_t ioHandle,
-                                       size_t* frameCount)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    sp<AudioIoDescriptor> desc = getIoDescriptor(ioHandle);
-    if (desc == 0) {
-        *frameCount = af->frameCountHAL(ioHandle);
-    } else {
-        *frameCount = desc->mFrameCountHAL;
-    }
-    if (*frameCount == 0) {
-        ALOGE("AudioSystem::getFrameCountHAL failed for ioHandle %d", ioHandle);
-        return BAD_VALUE;
-    }
-
-    ALOGV("getFrameCountHAL() ioHandle %d, frameCount %zu", ioHandle, *frameCount);
-
-    return NO_ERROR;
-}
-
-// ---------------------------------------------------------------------------
-
-
-void AudioSystem::AudioFlingerClient::clearIoCache()
-{
-    Mutex::Autolock _l(mLock);
-    mIoDescriptors.clear();
-    mInBuffSize = 0;
-    mInSamplingRate = 0;
-    mInFormat = AUDIO_FORMAT_DEFAULT;
-    mInChannelMask = AUDIO_CHANNEL_NONE;
-}
-
-void AudioSystem::AudioFlingerClient::binderDied(const wp<IBinder>& who __unused)
-{
-    audio_error_callback cb = NULL;
-    {
-        Mutex::Autolock _l(AudioSystem::gLock);
-        AudioSystem::gAudioFlinger.clear();
-        cb = gAudioErrorCallback;
-    }
-
-    // clear output handles and stream to output map caches
-    clearIoCache();
-
-    if (cb) {
-        cb(DEAD_OBJECT);
-    }
-    ALOGW("AudioFlinger server died!");
-}
-
-void AudioSystem::AudioFlingerClient::ioConfigChanged(audio_io_config_event event,
-                                                      const sp<AudioIoDescriptor>& ioDesc) {
-    ALOGV("ioConfigChanged() event %d", event);
-
-    if (ioDesc == 0 || ioDesc->mIoHandle == AUDIO_IO_HANDLE_NONE) return;
-
-    audio_port_handle_t deviceId = AUDIO_PORT_HANDLE_NONE;
-    Vector < sp<AudioDeviceCallback> > callbacks;
-
-    {
-        Mutex::Autolock _l(mLock);
-
-        switch (event) {
-        case AUDIO_OUTPUT_OPENED:
-        case AUDIO_INPUT_OPENED: {
-            sp<AudioIoDescriptor> oldDesc = getIoDescriptor_l(ioDesc->mIoHandle);
-            if (oldDesc == 0) {
-                mIoDescriptors.add(ioDesc->mIoHandle, ioDesc);
-            } else {
-                deviceId = oldDesc->getDeviceId();
-                mIoDescriptors.replaceValueFor(ioDesc->mIoHandle, ioDesc);
-            }
-
-            if (ioDesc->getDeviceId() != AUDIO_PORT_HANDLE_NONE) {
-                deviceId = ioDesc->getDeviceId();
-                ssize_t ioIndex = mAudioDeviceCallbacks.indexOfKey(ioDesc->mIoHandle);
-                if (ioIndex >= 0) {
-                    callbacks = mAudioDeviceCallbacks.valueAt(ioIndex);
-                }
-            }
-            ALOGV("ioConfigChanged() new %s opened %d samplingRate %u, format %#x channel mask %#x "
-                    "frameCount %zu deviceId %d", event == AUDIO_OUTPUT_OPENED ? "output" : "input",
-                    ioDesc->mIoHandle, ioDesc->mSamplingRate, ioDesc->mFormat, ioDesc->mChannelMask,
-                    ioDesc->mFrameCount, ioDesc->getDeviceId());
-            } break;
-        case AUDIO_OUTPUT_CLOSED:
-        case AUDIO_INPUT_CLOSED: {
-            if (getIoDescriptor_l(ioDesc->mIoHandle) == 0) {
-                ALOGW("ioConfigChanged() closing unknown %s %d",
-                      event == AUDIO_OUTPUT_CLOSED ? "output" : "input", ioDesc->mIoHandle);
-                break;
-            }
-            ALOGV("ioConfigChanged() %s %d closed",
-                  event == AUDIO_OUTPUT_CLOSED ? "output" : "input", ioDesc->mIoHandle);
-
-            mIoDescriptors.removeItem(ioDesc->mIoHandle);
-            mAudioDeviceCallbacks.removeItem(ioDesc->mIoHandle);
-            } break;
-
-        case AUDIO_OUTPUT_CONFIG_CHANGED:
-        case AUDIO_INPUT_CONFIG_CHANGED: {
-            sp<AudioIoDescriptor> oldDesc = getIoDescriptor_l(ioDesc->mIoHandle);
-            if (oldDesc == 0) {
-                ALOGW("ioConfigChanged() modifying unknown output! %d", ioDesc->mIoHandle);
-                break;
-            }
-
-            deviceId = oldDesc->getDeviceId();
-            mIoDescriptors.replaceValueFor(ioDesc->mIoHandle, ioDesc);
-
-            if (deviceId != ioDesc->getDeviceId()) {
-                deviceId = ioDesc->getDeviceId();
-                ssize_t ioIndex = mAudioDeviceCallbacks.indexOfKey(ioDesc->mIoHandle);
-                if (ioIndex >= 0) {
-                    callbacks = mAudioDeviceCallbacks.valueAt(ioIndex);
-                }
-            }
-            ALOGV("ioConfigChanged() new config for %s %d samplingRate %u, format %#x "
-                    "channel mask %#x frameCount %zu frameCountHAL %zu deviceId %d",
-                    event == AUDIO_OUTPUT_CONFIG_CHANGED ? "output" : "input",
-                    ioDesc->mIoHandle, ioDesc->mSamplingRate, ioDesc->mFormat,
-                    ioDesc->mChannelMask, ioDesc->mFrameCount, ioDesc->mFrameCountHAL, ioDesc->getDeviceId());
-
-        } break;
-        }
-    }
-    // callbacks.size() != 0 =>  ioDesc->mIoHandle and deviceId are valid
-    for (size_t i = 0; i < callbacks.size(); i++) {
-        callbacks[i]->onAudioDeviceUpdate(ioDesc->mIoHandle, deviceId);
-    }
-}
-
-status_t AudioSystem::AudioFlingerClient::getInputBufferSize(
-                                                uint32_t sampleRate, audio_format_t format,
-                                                audio_channel_mask_t channelMask, size_t* buffSize)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        return PERMISSION_DENIED;
-    }
-    Mutex::Autolock _l(mLock);
-    // Do we have a stale mInBuffSize or are we requesting the input buffer size for new values
-    if ((mInBuffSize == 0) || (sampleRate != mInSamplingRate) || (format != mInFormat)
-        || (channelMask != mInChannelMask)) {
-        size_t inBuffSize = af->getInputBufferSize(sampleRate, format, channelMask);
-        if (inBuffSize == 0) {
-            ALOGE("AudioSystem::getInputBufferSize failed sampleRate %d format %#x channelMask %x",
-                    sampleRate, format, channelMask);
-            return BAD_VALUE;
-        }
-        // A benign race is possible here: we could overwrite a fresher cache entry
-        // save the request params
-        mInSamplingRate = sampleRate;
-        mInFormat = format;
-        mInChannelMask = channelMask;
-
-        mInBuffSize = inBuffSize;
-    }
-
-    *buffSize = mInBuffSize;
-
-    return NO_ERROR;
-}
-
-sp<AudioIoDescriptor> AudioSystem::AudioFlingerClient::getIoDescriptor_l(audio_io_handle_t ioHandle)
-{
-    sp<AudioIoDescriptor> desc;
-    ssize_t index = mIoDescriptors.indexOfKey(ioHandle);
-    if (index >= 0) {
-        desc = mIoDescriptors.valueAt(index);
-    }
-    return desc;
-}
-
-sp<AudioIoDescriptor> AudioSystem::AudioFlingerClient::getIoDescriptor(audio_io_handle_t ioHandle)
-{
-    Mutex::Autolock _l(mLock);
-    return getIoDescriptor_l(ioHandle);
-}
-
-status_t AudioSystem::AudioFlingerClient::addAudioDeviceCallback(
-        const sp<AudioDeviceCallback>& callback, audio_io_handle_t audioIo)
-{
-    Mutex::Autolock _l(mLock);
-    Vector < sp<AudioDeviceCallback> > callbacks;
-    ssize_t ioIndex = mAudioDeviceCallbacks.indexOfKey(audioIo);
-    if (ioIndex >= 0) {
-        callbacks = mAudioDeviceCallbacks.valueAt(ioIndex);
-    }
-
-    for (size_t cbIndex = 0; cbIndex < callbacks.size(); cbIndex++) {
-        if (callbacks[cbIndex] == callback) {
-            return INVALID_OPERATION;
-        }
-    }
-    callbacks.add(callback);
-
-    mAudioDeviceCallbacks.replaceValueFor(audioIo, callbacks);
-    return NO_ERROR;
-}
-
-status_t AudioSystem::AudioFlingerClient::removeAudioDeviceCallback(
-        const sp<AudioDeviceCallback>& callback, audio_io_handle_t audioIo)
-{
-    Mutex::Autolock _l(mLock);
-    ssize_t ioIndex = mAudioDeviceCallbacks.indexOfKey(audioIo);
-    if (ioIndex < 0) {
-        return INVALID_OPERATION;
-    }
-    Vector < sp<AudioDeviceCallback> > callbacks = mAudioDeviceCallbacks.valueAt(ioIndex);
-
-    size_t cbIndex;
-    for (cbIndex = 0; cbIndex < callbacks.size(); cbIndex++) {
-        if (callbacks[cbIndex] == callback) {
-            break;
-        }
-    }
-    if (cbIndex == callbacks.size()) {
-        return INVALID_OPERATION;
-    }
-    callbacks.removeAt(cbIndex);
-    if (callbacks.size() != 0) {
-        mAudioDeviceCallbacks.replaceValueFor(audioIo, callbacks);
-    } else {
-        mAudioDeviceCallbacks.removeItem(audioIo);
-    }
-    return NO_ERROR;
-}
-
-/* static */ void AudioSystem::setErrorCallback(audio_error_callback cb)
-{
-    Mutex::Autolock _l(gLock);
-    gAudioErrorCallback = cb;
-}
-
-/*static*/ void AudioSystem::setDynPolicyCallback(dynamic_policy_callback cb)
-{
-    Mutex::Autolock _l(gLock);
-    gDynPolicyCallback = cb;
-}
-
-/*static*/ void AudioSystem::setRecordConfigCallback(record_config_callback cb)
-{
-    Mutex::Autolock _l(gLock);
-    gRecordConfigCallback = cb;
-}
-
-// client singleton for AudioPolicyService binder interface
-// protected by gLockAPS
-sp<IAudioPolicyService> AudioSystem::gAudioPolicyService;
-sp<AudioSystem::AudioPolicyServiceClient> AudioSystem::gAudioPolicyServiceClient;
-
-
-// establish binder interface to AudioPolicy service
-const sp<IAudioPolicyService> AudioSystem::get_audio_policy_service()
-{
-    sp<IAudioPolicyService> ap;
-    sp<AudioPolicyServiceClient> apc;
-    {
-        Mutex::Autolock _l(gLockAPS);
-        if (gAudioPolicyService == 0) {
-            sp<IServiceManager> sm = defaultServiceManager();
-            sp<IBinder> binder;
-            do {
-                binder = sm->getService(String16("media.audio_policy"));
-                if (binder != 0)
-                    break;
-                ALOGW("AudioPolicyService not published, waiting...");
-                usleep(500000); // 0.5 s
-            } while (true);
-            if (gAudioPolicyServiceClient == NULL) {
-                gAudioPolicyServiceClient = new AudioPolicyServiceClient();
-            }
-            binder->linkToDeath(gAudioPolicyServiceClient);
-            gAudioPolicyService = interface_cast<IAudioPolicyService>(binder);
-            LOG_ALWAYS_FATAL_IF(gAudioPolicyService == 0);
-            apc = gAudioPolicyServiceClient;
-        }
-        ap = gAudioPolicyService;
-    }
-    if (apc != 0) {
-        ap->registerClient(apc);
-    }
-
-    return ap;
-}
-
-// ---------------------------------------------------------------------------
-
-status_t AudioSystem::setDeviceConnectionState(audio_devices_t device,
-                                               audio_policy_dev_state_t state,
-                                               const char *device_address,
-                                               const char *device_name)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    const char *address = "";
-    const char *name = "";
-
-    if (aps == 0) return PERMISSION_DENIED;
-
-    if (device_address != NULL) {
-        address = device_address;
-    }
-    if (device_name != NULL) {
-        name = device_name;
-    }
-    return aps->setDeviceConnectionState(device, state, address, name);
-}
-
-audio_policy_dev_state_t AudioSystem::getDeviceConnectionState(audio_devices_t device,
-                                                  const char *device_address)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
-
-    return aps->getDeviceConnectionState(device, device_address);
-}
-
-status_t AudioSystem::setPhoneState(audio_mode_t state)
-{
-    if (uint32_t(state) >= AUDIO_MODE_CNT) return BAD_VALUE;
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-
-    return aps->setPhoneState(state);
-}
-
-status_t AudioSystem::setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->setForceUse(usage, config);
-}
-
-audio_policy_forced_cfg_t AudioSystem::getForceUse(audio_policy_force_use_t usage)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return AUDIO_POLICY_FORCE_NONE;
-    return aps->getForceUse(usage);
-}
-
-
-audio_io_handle_t AudioSystem::getOutput(audio_stream_type_t stream,
-                                    uint32_t samplingRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    audio_output_flags_t flags,
-                                    const audio_offload_info_t *offloadInfo)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return 0;
-    return aps->getOutput(stream, samplingRate, format, channelMask, flags, offloadInfo);
-}
-
-status_t AudioSystem::getOutputForAttr(const audio_attributes_t *attr,
-                                        audio_io_handle_t *output,
-                                        audio_session_t session,
-                                        audio_stream_type_t *stream,
-                                        uid_t uid,
-                                        uint32_t samplingRate,
-                                        audio_format_t format,
-                                        audio_channel_mask_t channelMask,
-                                        audio_output_flags_t flags,
-                                        audio_port_handle_t selectedDeviceId,
-                                        const audio_offload_info_t *offloadInfo)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return NO_INIT;
-    return aps->getOutputForAttr(attr, output, session, stream, uid,
-                                 samplingRate, format, channelMask,
-                                 flags, selectedDeviceId, offloadInfo);
-}
-
-status_t AudioSystem::startOutput(audio_io_handle_t output,
-                                  audio_stream_type_t stream,
-                                  audio_session_t session)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->startOutput(output, stream, session);
-}
-
-status_t AudioSystem::stopOutput(audio_io_handle_t output,
-                                 audio_stream_type_t stream,
-                                 audio_session_t session)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->stopOutput(output, stream, session);
-}
-
-void AudioSystem::releaseOutput(audio_io_handle_t output,
-                                audio_stream_type_t stream,
-                                audio_session_t session)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return;
-    aps->releaseOutput(output, stream, session);
-}
-
-status_t AudioSystem::getInputForAttr(const audio_attributes_t *attr,
-                                audio_io_handle_t *input,
-                                audio_session_t session,
-                                pid_t pid,
-                                uid_t uid,
-                                uint32_t samplingRate,
-                                audio_format_t format,
-                                audio_channel_mask_t channelMask,
-                                audio_input_flags_t flags,
-                                audio_port_handle_t selectedDeviceId)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return NO_INIT;
-    return aps->getInputForAttr(
-            attr, input, session, pid, uid,
-            samplingRate, format, channelMask, flags, selectedDeviceId);
-}
-
-status_t AudioSystem::startInput(audio_io_handle_t input,
-                                 audio_session_t session)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->startInput(input, session);
-}
-
-status_t AudioSystem::stopInput(audio_io_handle_t input,
-                                audio_session_t session)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->stopInput(input, session);
-}
-
-void AudioSystem::releaseInput(audio_io_handle_t input,
-                               audio_session_t session)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return;
-    aps->releaseInput(input, session);
-}
-
-status_t AudioSystem::initStreamVolume(audio_stream_type_t stream,
-                                    int indexMin,
-                                    int indexMax)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->initStreamVolume(stream, indexMin, indexMax);
-}
-
-status_t AudioSystem::setStreamVolumeIndex(audio_stream_type_t stream,
-                                           int index,
-                                           audio_devices_t device)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->setStreamVolumeIndex(stream, index, device);
-}
-
-status_t AudioSystem::getStreamVolumeIndex(audio_stream_type_t stream,
-                                           int *index,
-                                           audio_devices_t device)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->getStreamVolumeIndex(stream, index, device);
-}
-
-uint32_t AudioSystem::getStrategyForStream(audio_stream_type_t stream)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return 0;
-    return aps->getStrategyForStream(stream);
-}
-
-audio_devices_t AudioSystem::getDevicesForStream(audio_stream_type_t stream)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return AUDIO_DEVICE_NONE;
-    return aps->getDevicesForStream(stream);
-}
-
-audio_io_handle_t AudioSystem::getOutputForEffect(const effect_descriptor_t *desc)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    // FIXME change return type to status_t, and return PERMISSION_DENIED here
-    if (aps == 0) return AUDIO_IO_HANDLE_NONE;
-    return aps->getOutputForEffect(desc);
-}
-
-status_t AudioSystem::registerEffect(const effect_descriptor_t *desc,
-                                audio_io_handle_t io,
-                                uint32_t strategy,
-                                audio_session_t session,
-                                int id)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->registerEffect(desc, io, strategy, session, id);
-}
-
-status_t AudioSystem::unregisterEffect(int id)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->unregisterEffect(id);
-}
-
-status_t AudioSystem::setEffectEnabled(int id, bool enabled)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->setEffectEnabled(id, enabled);
-}
-
-status_t AudioSystem::isStreamActive(audio_stream_type_t stream, bool* state, uint32_t inPastMs)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    if (state == NULL) return BAD_VALUE;
-    *state = aps->isStreamActive(stream, inPastMs);
-    return NO_ERROR;
-}
-
-status_t AudioSystem::isStreamActiveRemotely(audio_stream_type_t stream, bool* state,
-        uint32_t inPastMs)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    if (state == NULL) return BAD_VALUE;
-    *state = aps->isStreamActiveRemotely(stream, inPastMs);
-    return NO_ERROR;
-}
-
-status_t AudioSystem::isSourceActive(audio_source_t stream, bool* state)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    if (state == NULL) return BAD_VALUE;
-    *state = aps->isSourceActive(stream);
-    return NO_ERROR;
-}
-
-uint32_t AudioSystem::getPrimaryOutputSamplingRate()
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return 0;
-    return af->getPrimaryOutputSamplingRate();
-}
-
-size_t AudioSystem::getPrimaryOutputFrameCount()
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return 0;
-    return af->getPrimaryOutputFrameCount();
-}
-
-status_t AudioSystem::setLowRamDevice(bool isLowRamDevice)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    return af->setLowRamDevice(isLowRamDevice);
-}
-
-void AudioSystem::clearAudioConfigCache()
-{
-    // called by restoreTrack_l(), which needs new IAudioFlinger and IAudioPolicyService instances
-    ALOGV("clearAudioConfigCache()");
-    {
-        Mutex::Autolock _l(gLock);
-        if (gAudioFlingerClient != 0) {
-            gAudioFlingerClient->clearIoCache();
-        }
-        gAudioFlinger.clear();
-    }
-    {
-        Mutex::Autolock _l(gLockAPS);
-        gAudioPolicyService.clear();
-    }
-}
-
-bool AudioSystem::isOffloadSupported(const audio_offload_info_t& info)
-{
-    ALOGV("isOffloadSupported()");
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return false;
-    return aps->isOffloadSupported(info);
-}
-
-status_t AudioSystem::listAudioPorts(audio_port_role_t role,
-                                     audio_port_type_t type,
-                                     unsigned int *num_ports,
-                                     struct audio_port *ports,
-                                     unsigned int *generation)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->listAudioPorts(role, type, num_ports, ports, generation);
-}
-
-status_t AudioSystem::getAudioPort(struct audio_port *port)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->getAudioPort(port);
-}
-
-status_t AudioSystem::createAudioPatch(const struct audio_patch *patch,
-                                   audio_patch_handle_t *handle)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->createAudioPatch(patch, handle);
-}
-
-status_t AudioSystem::releaseAudioPatch(audio_patch_handle_t handle)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->releaseAudioPatch(handle);
-}
-
-status_t AudioSystem::listAudioPatches(unsigned int *num_patches,
-                                  struct audio_patch *patches,
-                                  unsigned int *generation)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->listAudioPatches(num_patches, patches, generation);
-}
-
-status_t AudioSystem::setAudioPortConfig(const struct audio_port_config *config)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->setAudioPortConfig(config);
-}
-
-status_t AudioSystem::addAudioPortCallback(const sp<AudioPortCallback>& callback)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-
-    Mutex::Autolock _l(gLockAPS);
-    if (gAudioPolicyServiceClient == 0) {
-        return NO_INIT;
-    }
-    int ret = gAudioPolicyServiceClient->addAudioPortCallback(callback);
-    if (ret == 1) {
-        aps->setAudioPortCallbacksEnabled(true);
-    }
-    return (ret < 0) ? INVALID_OPERATION : NO_ERROR;
-}
-
-/*static*/
-status_t AudioSystem::removeAudioPortCallback(const sp<AudioPortCallback>& callback)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-
-    Mutex::Autolock _l(gLockAPS);
-    if (gAudioPolicyServiceClient == 0) {
-        return NO_INIT;
-    }
-    int ret = gAudioPolicyServiceClient->removeAudioPortCallback(callback);
-    if (ret == 0) {
-        aps->setAudioPortCallbacksEnabled(false);
-    }
-    return (ret < 0) ? INVALID_OPERATION : NO_ERROR;
-}
-
-status_t AudioSystem::addAudioDeviceCallback(
-        const sp<AudioDeviceCallback>& callback, audio_io_handle_t audioIo)
-{
-    const sp<AudioFlingerClient> afc = getAudioFlingerClient();
-    if (afc == 0) {
-        return NO_INIT;
-    }
-    status_t status = afc->addAudioDeviceCallback(callback, audioIo);
-    if (status == NO_ERROR) {
-        const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-        if (af != 0) {
-            af->registerClient(afc);
-        }
-    }
-    return status;
-}
-
-status_t AudioSystem::removeAudioDeviceCallback(
-        const sp<AudioDeviceCallback>& callback, audio_io_handle_t audioIo)
-{
-    const sp<AudioFlingerClient> afc = getAudioFlingerClient();
-    if (afc == 0) {
-        return NO_INIT;
-    }
-    return afc->removeAudioDeviceCallback(callback, audioIo);
-}
-
-audio_port_handle_t AudioSystem::getDeviceIdForIo(audio_io_handle_t audioIo)
-{
-    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
-    if (af == 0) return PERMISSION_DENIED;
-    const sp<AudioIoDescriptor> desc = getIoDescriptor(audioIo);
-    if (desc == 0) {
-        return AUDIO_PORT_HANDLE_NONE;
-    }
-    return desc->getDeviceId();
-}
-
-status_t AudioSystem::acquireSoundTriggerSession(audio_session_t *session,
-                                       audio_io_handle_t *ioHandle,
-                                       audio_devices_t *device)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->acquireSoundTriggerSession(session, ioHandle, device);
-}
-
-status_t AudioSystem::releaseSoundTriggerSession(audio_session_t session)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->releaseSoundTriggerSession(session);
-}
-
-audio_mode_t AudioSystem::getPhoneState()
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return AUDIO_MODE_INVALID;
-    return aps->getPhoneState();
-}
-
-status_t AudioSystem::registerPolicyMixes(Vector<AudioMix> mixes, bool registration)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->registerPolicyMixes(mixes, registration);
-}
-
-status_t AudioSystem::startAudioSource(const struct audio_port_config *source,
-                                       const audio_attributes_t *attributes,
-                                       audio_io_handle_t *handle)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->startAudioSource(source, attributes, handle);
-}
-
-status_t AudioSystem::stopAudioSource(audio_io_handle_t handle)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->stopAudioSource(handle);
-}
-
-status_t AudioSystem::setMasterMono(bool mono)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->setMasterMono(mono);
-}
-
-status_t AudioSystem::getMasterMono(bool *mono)
-{
-    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
-    if (aps == 0) return PERMISSION_DENIED;
-    return aps->getMasterMono(mono);
-}
-
-// ---------------------------------------------------------------------------
-
-int AudioSystem::AudioPolicyServiceClient::addAudioPortCallback(
-        const sp<AudioPortCallback>& callback)
-{
-    Mutex::Autolock _l(mLock);
-    for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
-        if (mAudioPortCallbacks[i] == callback) {
-            return -1;
-        }
-    }
-    mAudioPortCallbacks.add(callback);
-    return mAudioPortCallbacks.size();
-}
-
-int AudioSystem::AudioPolicyServiceClient::removeAudioPortCallback(
-        const sp<AudioPortCallback>& callback)
-{
-    Mutex::Autolock _l(mLock);
-    size_t i;
-    for (i = 0; i < mAudioPortCallbacks.size(); i++) {
-        if (mAudioPortCallbacks[i] == callback) {
-            break;
-        }
-    }
-    if (i == mAudioPortCallbacks.size()) {
-        return -1;
-    }
-    mAudioPortCallbacks.removeAt(i);
-    return mAudioPortCallbacks.size();
-}
-
-
-void AudioSystem::AudioPolicyServiceClient::onAudioPortListUpdate()
-{
-    Mutex::Autolock _l(mLock);
-    for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
-        mAudioPortCallbacks[i]->onAudioPortListUpdate();
-    }
-}
-
-void AudioSystem::AudioPolicyServiceClient::onAudioPatchListUpdate()
-{
-    Mutex::Autolock _l(mLock);
-    for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
-        mAudioPortCallbacks[i]->onAudioPatchListUpdate();
-    }
-}
-
-void AudioSystem::AudioPolicyServiceClient::onDynamicPolicyMixStateUpdate(
-        String8 regId, int32_t state)
-{
-    ALOGV("AudioPolicyServiceClient::onDynamicPolicyMixStateUpdate(%s, %d)", regId.string(), state);
-    dynamic_policy_callback cb = NULL;
-    {
-        Mutex::Autolock _l(AudioSystem::gLock);
-        cb = gDynPolicyCallback;
-    }
-
-    if (cb != NULL) {
-        cb(DYNAMIC_POLICY_EVENT_MIX_STATE_UPDATE, regId, state);
-    }
-}
-
-void AudioSystem::AudioPolicyServiceClient::onRecordingConfigurationUpdate(
-        int event, audio_session_t session, audio_source_t source,
-        const audio_config_base_t *clientConfig, const audio_config_base_t *deviceConfig,
-        audio_patch_handle_t patchHandle) {
-    record_config_callback cb = NULL;
-    {
-        Mutex::Autolock _l(AudioSystem::gLock);
-        cb = gRecordConfigCallback;
-    }
-
-    if (cb != NULL) {
-        cb(event, session, source, clientConfig, deviceConfig, patchHandle);
-    }
-}
-
-void AudioSystem::AudioPolicyServiceClient::binderDied(const wp<IBinder>& who __unused)
-{
-    {
-        Mutex::Autolock _l(mLock);
-        for (size_t i = 0; i < mAudioPortCallbacks.size(); i++) {
-            mAudioPortCallbacks[i]->onServiceDied();
-        }
-    }
-    {
-        Mutex::Autolock _l(gLockAPS);
-        AudioSystem::gAudioPolicyService.clear();
-    }
-
-    ALOGW("AudioPolicyService server died!");
-}
-
-} // namespace android
diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
deleted file mode 100644
index 7663fef..0000000
--- a/media/libmedia/AudioTrack.cpp
+++ /dev/null
@@ -1,2815 +0,0 @@
-/*
-**
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "AudioTrack"
-
-#include <inttypes.h>
-#include <math.h>
-#include <sys/resource.h>
-
-#include <audio_utils/primitives.h>
-#include <binder/IPCThreadState.h>
-#include <media/AudioTrack.h>
-#include <utils/Log.h>
-#include <private/media/AudioTrackShared.h>
-#include <media/IAudioFlinger.h>
-#include <media/AudioPolicyHelper.h>
-#include <media/AudioResamplerPublic.h>
-
-#define WAIT_PERIOD_MS                  10
-#define WAIT_STREAM_END_TIMEOUT_SEC     120
-static const int kMaxLoopCountNotifications = 32;
-
-namespace android {
-// ---------------------------------------------------------------------------
-
-// TODO: Move to a separate .h
-
-template <typename T>
-static inline const T &min(const T &x, const T &y) {
-    return x < y ? x : y;
-}
-
-template <typename T>
-static inline const T &max(const T &x, const T &y) {
-    return x > y ? x : y;
-}
-
-static inline nsecs_t framesToNanoseconds(ssize_t frames, uint32_t sampleRate, float speed)
-{
-    return ((double)frames * 1000000000) / ((double)sampleRate * speed);
-}
-
-static int64_t convertTimespecToUs(const struct timespec &tv)
-{
-    return tv.tv_sec * 1000000ll + tv.tv_nsec / 1000;
-}
-
-// current monotonic time in microseconds.
-static int64_t getNowUs()
-{
-    struct timespec tv;
-    (void) clock_gettime(CLOCK_MONOTONIC, &tv);
-    return convertTimespecToUs(tv);
-}
-
-// FIXME: we don't use the pitch setting in the time stretcher (not working);
-// instead we emulate it using our sample rate converter.
-static const bool kFixPitch = true; // enable pitch fix
-static inline uint32_t adjustSampleRate(uint32_t sampleRate, float pitch)
-{
-    return kFixPitch ? (sampleRate * pitch + 0.5) : sampleRate;
-}
-
-static inline float adjustSpeed(float speed, float pitch)
-{
-    return kFixPitch ? speed / max(pitch, AUDIO_TIMESTRETCH_PITCH_MIN_DELTA) : speed;
-}
-
-static inline float adjustPitch(float pitch)
-{
-    return kFixPitch ? AUDIO_TIMESTRETCH_PITCH_NORMAL : pitch;
-}
-
-// Must match similar computation in createTrack_l in Threads.cpp.
-// TODO: Move to a common library
-static size_t calculateMinFrameCount(
-        uint32_t afLatencyMs, uint32_t afFrameCount, uint32_t afSampleRate,
-        uint32_t sampleRate, float speed /*, uint32_t notificationsPerBufferReq*/)
-{
-    // Ensure that buffer depth covers at least audio hardware latency
-    uint32_t minBufCount = afLatencyMs / ((1000 * afFrameCount) / afSampleRate);
-    if (minBufCount < 2) {
-        minBufCount = 2;
-    }
-#if 0
-    // The notificationsPerBufferReq parameter is not yet used for non-fast tracks,
-    // but keeping the code here to make it easier to add later.
-    if (minBufCount < notificationsPerBufferReq) {
-        minBufCount = notificationsPerBufferReq;
-    }
-#endif
-    ALOGV("calculateMinFrameCount afLatency %u  afFrameCount %u  afSampleRate %u  "
-            "sampleRate %u  speed %f  minBufCount: %u" /*"  notificationsPerBufferReq %u"*/,
-            afLatencyMs, afFrameCount, afSampleRate, sampleRate, speed, minBufCount
-            /*, notificationsPerBufferReq*/);
-    return minBufCount * sourceFramesNeededWithTimestretch(
-            sampleRate, afFrameCount, afSampleRate, speed);
-}
-
-// static
-status_t AudioTrack::getMinFrameCount(
-        size_t* frameCount,
-        audio_stream_type_t streamType,
-        uint32_t sampleRate)
-{
-    if (frameCount == NULL) {
-        return BAD_VALUE;
-    }
-
-    // FIXME handle in server, like createTrack_l(), possible missing info:
-    //          audio_io_handle_t output
-    //          audio_format_t format
-    //          audio_channel_mask_t channelMask
-    //          audio_output_flags_t flags (FAST)
-    uint32_t afSampleRate;
-    status_t status;
-    status = AudioSystem::getOutputSamplingRate(&afSampleRate, streamType);
-    if (status != NO_ERROR) {
-        ALOGE("Unable to query output sample rate for stream type %d; status %d",
-                streamType, status);
-        return status;
-    }
-    size_t afFrameCount;
-    status = AudioSystem::getOutputFrameCount(&afFrameCount, streamType);
-    if (status != NO_ERROR) {
-        ALOGE("Unable to query output frame count for stream type %d; status %d",
-                streamType, status);
-        return status;
-    }
-    uint32_t afLatency;
-    status = AudioSystem::getOutputLatency(&afLatency, streamType);
-    if (status != NO_ERROR) {
-        ALOGE("Unable to query output latency for stream type %d; status %d",
-                streamType, status);
-        return status;
-    }
-
-    // When called from createTrack, speed is 1.0f (normal speed).
-    // This is rechecked again on setting playback rate (TODO: on setting sample rate, too).
-    *frameCount = calculateMinFrameCount(afLatency, afFrameCount, afSampleRate, sampleRate, 1.0f
-            /*, 0 notificationsPerBufferReq*/);
-
-    // The formula above should always produce a non-zero value under normal circumstances:
-    // AudioTrack.SAMPLE_RATE_HZ_MIN <= sampleRate <= AudioTrack.SAMPLE_RATE_HZ_MAX.
-    // Return error in the unlikely event that it does not, as that's part of the API contract.
-    if (*frameCount == 0) {
-        ALOGE("AudioTrack::getMinFrameCount failed for streamType %d, sampleRate %u",
-                streamType, sampleRate);
-        return BAD_VALUE;
-    }
-    ALOGV("getMinFrameCount=%zu: afFrameCount=%zu, afSampleRate=%u, afLatency=%u",
-            *frameCount, afFrameCount, afSampleRate, afLatency);
-    return NO_ERROR;
-}
-
-// ---------------------------------------------------------------------------
-
-AudioTrack::AudioTrack()
-    : mStatus(NO_INIT),
-      mState(STATE_STOPPED),
-      mPreviousPriority(ANDROID_PRIORITY_NORMAL),
-      mPreviousSchedulingGroup(SP_DEFAULT),
-      mPausedPosition(0),
-      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE)
-{
-    mAttributes.content_type = AUDIO_CONTENT_TYPE_UNKNOWN;
-    mAttributes.usage = AUDIO_USAGE_UNKNOWN;
-    mAttributes.flags = 0x0;
-    strcpy(mAttributes.tags, "");
-}
-
-AudioTrack::AudioTrack(
-        audio_stream_type_t streamType,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        size_t frameCount,
-        audio_output_flags_t flags,
-        callback_t cbf,
-        void* user,
-        int32_t notificationFrames,
-        audio_session_t sessionId,
-        transfer_type transferType,
-        const audio_offload_info_t *offloadInfo,
-        int uid,
-        pid_t pid,
-        const audio_attributes_t* pAttributes,
-        bool doNotReconnect,
-        float maxRequiredSpeed)
-    : mStatus(NO_INIT),
-      mState(STATE_STOPPED),
-      mPreviousPriority(ANDROID_PRIORITY_NORMAL),
-      mPreviousSchedulingGroup(SP_DEFAULT),
-      mPausedPosition(0),
-      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE)
-{
-    mStatus = set(streamType, sampleRate, format, channelMask,
-            frameCount, flags, cbf, user, notificationFrames,
-            0 /*sharedBuffer*/, false /*threadCanCallJava*/, sessionId, transferType,
-            offloadInfo, uid, pid, pAttributes, doNotReconnect, maxRequiredSpeed);
-}
-
-AudioTrack::AudioTrack(
-        audio_stream_type_t streamType,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        const sp<IMemory>& sharedBuffer,
-        audio_output_flags_t flags,
-        callback_t cbf,
-        void* user,
-        int32_t notificationFrames,
-        audio_session_t sessionId,
-        transfer_type transferType,
-        const audio_offload_info_t *offloadInfo,
-        int uid,
-        pid_t pid,
-        const audio_attributes_t* pAttributes,
-        bool doNotReconnect,
-        float maxRequiredSpeed)
-    : mStatus(NO_INIT),
-      mState(STATE_STOPPED),
-      mPreviousPriority(ANDROID_PRIORITY_NORMAL),
-      mPreviousSchedulingGroup(SP_DEFAULT),
-      mPausedPosition(0),
-      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE)
-{
-    mStatus = set(streamType, sampleRate, format, channelMask,
-            0 /*frameCount*/, flags, cbf, user, notificationFrames,
-            sharedBuffer, false /*threadCanCallJava*/, sessionId, transferType, offloadInfo,
-            uid, pid, pAttributes, doNotReconnect, maxRequiredSpeed);
-}
-
-AudioTrack::~AudioTrack()
-{
-    if (mStatus == NO_ERROR) {
-        // Make sure that callback function exits in the case where
-        // it is looping on buffer full condition in obtainBuffer().
-        // Otherwise the callback thread will never exit.
-        stop();
-        if (mAudioTrackThread != 0) {
-            mProxy->interrupt();
-            mAudioTrackThread->requestExit();   // see comment in AudioTrack.h
-            mAudioTrackThread->requestExitAndWait();
-            mAudioTrackThread.clear();
-        }
-        // No lock here: worst case we remove a NULL callback which will be a nop
-        if (mDeviceCallback != 0 && mOutput != AUDIO_IO_HANDLE_NONE) {
-            AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mOutput);
-        }
-        IInterface::asBinder(mAudioTrack)->unlinkToDeath(mDeathNotifier, this);
-        mAudioTrack.clear();
-        mCblkMemory.clear();
-        mSharedBuffer.clear();
-        IPCThreadState::self()->flushCommands();
-        ALOGV("~AudioTrack, releasing session id %d from %d on behalf of %d",
-                mSessionId, IPCThreadState::self()->getCallingPid(), mClientPid);
-        AudioSystem::releaseAudioSessionId(mSessionId, mClientPid);
-    }
-}
-
-status_t AudioTrack::set(
-        audio_stream_type_t streamType,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        size_t frameCount,
-        audio_output_flags_t flags,
-        callback_t cbf,
-        void* user,
-        int32_t notificationFrames,
-        const sp<IMemory>& sharedBuffer,
-        bool threadCanCallJava,
-        audio_session_t sessionId,
-        transfer_type transferType,
-        const audio_offload_info_t *offloadInfo,
-        int uid,
-        pid_t pid,
-        const audio_attributes_t* pAttributes,
-        bool doNotReconnect,
-        float maxRequiredSpeed)
-{
-    ALOGV("set(): streamType %d, sampleRate %u, format %#x, channelMask %#x, frameCount %zu, "
-          "flags #%x, notificationFrames %d, sessionId %d, transferType %d, uid %d, pid %d",
-          streamType, sampleRate, format, channelMask, frameCount, flags, notificationFrames,
-          sessionId, transferType, uid, pid);
-
-    mThreadCanCallJava = threadCanCallJava;
-
-    switch (transferType) {
-    case TRANSFER_DEFAULT:
-        if (sharedBuffer != 0) {
-            transferType = TRANSFER_SHARED;
-        } else if (cbf == NULL || threadCanCallJava) {
-            transferType = TRANSFER_SYNC;
-        } else {
-            transferType = TRANSFER_CALLBACK;
-        }
-        break;
-    case TRANSFER_CALLBACK:
-        if (cbf == NULL || sharedBuffer != 0) {
-            ALOGE("Transfer type TRANSFER_CALLBACK but cbf == NULL || sharedBuffer != 0");
-            return BAD_VALUE;
-        }
-        break;
-    case TRANSFER_OBTAIN:
-    case TRANSFER_SYNC:
-        if (sharedBuffer != 0) {
-            ALOGE("Transfer type TRANSFER_OBTAIN but sharedBuffer != 0");
-            return BAD_VALUE;
-        }
-        break;
-    case TRANSFER_SHARED:
-        if (sharedBuffer == 0) {
-            ALOGE("Transfer type TRANSFER_SHARED but sharedBuffer == 0");
-            return BAD_VALUE;
-        }
-        break;
-    default:
-        ALOGE("Invalid transfer type %d", transferType);
-        return BAD_VALUE;
-    }
-    mSharedBuffer = sharedBuffer;
-    mTransfer = transferType;
-    mDoNotReconnect = doNotReconnect;
-
-    ALOGV_IF(sharedBuffer != 0, "sharedBuffer: %p, size: %zu", sharedBuffer->pointer(),
-            sharedBuffer->size());
-
-    ALOGV("set() streamType %d frameCount %zu flags %04x", streamType, frameCount, flags);
-
-    // invariant that mAudioTrack != 0 is true only after set() returns successfully
-    if (mAudioTrack != 0) {
-        ALOGE("Track already in use");
-        return INVALID_OPERATION;
-    }
-
-    // handle default values first.
-    if (streamType == AUDIO_STREAM_DEFAULT) {
-        streamType = AUDIO_STREAM_MUSIC;
-    }
-    if (pAttributes == NULL) {
-        if (uint32_t(streamType) >= AUDIO_STREAM_PUBLIC_CNT) {
-            ALOGE("Invalid stream type %d", streamType);
-            return BAD_VALUE;
-        }
-        mStreamType = streamType;
-
-    } else {
-        // stream type shouldn't be looked at, this track has audio attributes
-        memcpy(&mAttributes, pAttributes, sizeof(audio_attributes_t));
-        ALOGV("Building AudioTrack with attributes: usage=%d content=%d flags=0x%x tags=[%s]",
-                mAttributes.usage, mAttributes.content_type, mAttributes.flags, mAttributes.tags);
-        mStreamType = AUDIO_STREAM_DEFAULT;
-        if ((mAttributes.flags & AUDIO_FLAG_HW_AV_SYNC) != 0) {
-            flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_HW_AV_SYNC);
-        }
-        if ((mAttributes.flags & AUDIO_FLAG_LOW_LATENCY) != 0) {
-            flags = (audio_output_flags_t) (flags | AUDIO_OUTPUT_FLAG_FAST);
-        }
-    }
-
-    // these below should probably come from the audioFlinger too...
-    if (format == AUDIO_FORMAT_DEFAULT) {
-        format = AUDIO_FORMAT_PCM_16_BIT;
-    } else if (format == AUDIO_FORMAT_IEC61937) { // HDMI pass-through?
-        mAttributes.flags |= AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO;
-    }
-
-    // validate parameters
-    if (!audio_is_valid_format(format)) {
-        ALOGE("Invalid format %#x", format);
-        return BAD_VALUE;
-    }
-    mFormat = format;
-
-    if (!audio_is_output_channel(channelMask)) {
-        ALOGE("Invalid channel mask %#x", channelMask);
-        return BAD_VALUE;
-    }
-    mChannelMask = channelMask;
-    uint32_t channelCount = audio_channel_count_from_out_mask(channelMask);
-    mChannelCount = channelCount;
-
-    // force direct flag if format is not linear PCM
-    // or offload was requested
-    if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)
-            || !audio_is_linear_pcm(format)) {
-        ALOGV( (flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)
-                    ? "Offload request, forcing to Direct Output"
-                    : "Not linear PCM, forcing to Direct Output");
-        flags = (audio_output_flags_t)
-                // FIXME why can't we allow direct AND fast?
-                ((flags | AUDIO_OUTPUT_FLAG_DIRECT) & ~AUDIO_OUTPUT_FLAG_FAST);
-    }
-
-    // force direct flag if HW A/V sync requested
-    if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) {
-        flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT);
-    }
-
-    if (flags & AUDIO_OUTPUT_FLAG_DIRECT) {
-        if (audio_has_proportional_frames(format)) {
-            mFrameSize = channelCount * audio_bytes_per_sample(format);
-        } else {
-            mFrameSize = sizeof(uint8_t);
-        }
-    } else {
-        ALOG_ASSERT(audio_has_proportional_frames(format));
-        mFrameSize = channelCount * audio_bytes_per_sample(format);
-        // createTrack will return an error if PCM format is not supported by server,
-        // so no need to check for specific PCM formats here
-    }
-
-    // sampling rate must be specified for direct outputs
-    if (sampleRate == 0 && (flags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) {
-        return BAD_VALUE;
-    }
-    mSampleRate = sampleRate;
-    mOriginalSampleRate = sampleRate;
-    mPlaybackRate = AUDIO_PLAYBACK_RATE_DEFAULT;
-    // 1.0 <= mMaxRequiredSpeed <= AUDIO_TIMESTRETCH_SPEED_MAX
-    mMaxRequiredSpeed = min(max(maxRequiredSpeed, 1.0f), AUDIO_TIMESTRETCH_SPEED_MAX);
-
-    // Make copy of input parameter offloadInfo so that in the future:
-    //  (a) createTrack_l doesn't need it as an input parameter
-    //  (b) we can support re-creation of offloaded tracks
-    if (offloadInfo != NULL) {
-        mOffloadInfoCopy = *offloadInfo;
-        mOffloadInfo = &mOffloadInfoCopy;
-    } else {
-        mOffloadInfo = NULL;
-    }
-
-    mVolume[AUDIO_INTERLEAVE_LEFT] = 1.0f;
-    mVolume[AUDIO_INTERLEAVE_RIGHT] = 1.0f;
-    mSendLevel = 0.0f;
-    // mFrameCount is initialized in createTrack_l
-    mReqFrameCount = frameCount;
-    if (notificationFrames >= 0) {
-        mNotificationFramesReq = notificationFrames;
-        mNotificationsPerBufferReq = 0;
-    } else {
-        if (!(flags & AUDIO_OUTPUT_FLAG_FAST)) {
-            ALOGE("notificationFrames=%d not permitted for non-fast track",
-                    notificationFrames);
-            return BAD_VALUE;
-        }
-        if (frameCount > 0) {
-            ALOGE("notificationFrames=%d not permitted with non-zero frameCount=%zu",
-                    notificationFrames, frameCount);
-            return BAD_VALUE;
-        }
-        mNotificationFramesReq = 0;
-        const uint32_t minNotificationsPerBuffer = 1;
-        const uint32_t maxNotificationsPerBuffer = 8;
-        mNotificationsPerBufferReq = min(maxNotificationsPerBuffer,
-                max((uint32_t) -notificationFrames, minNotificationsPerBuffer));
-        ALOGW_IF(mNotificationsPerBufferReq != (uint32_t) -notificationFrames,
-                "notificationFrames=%d clamped to the range -%u to -%u",
-                notificationFrames, minNotificationsPerBuffer, maxNotificationsPerBuffer);
-    }
-    mNotificationFramesAct = 0;
-    if (sessionId == AUDIO_SESSION_ALLOCATE) {
-        mSessionId = (audio_session_t) AudioSystem::newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
-    } else {
-        mSessionId = sessionId;
-    }
-    int callingpid = IPCThreadState::self()->getCallingPid();
-    int mypid = getpid();
-    if (uid == -1 || (callingpid != mypid)) {
-        mClientUid = IPCThreadState::self()->getCallingUid();
-    } else {
-        mClientUid = uid;
-    }
-    if (pid == -1 || (callingpid != mypid)) {
-        mClientPid = callingpid;
-    } else {
-        mClientPid = pid;
-    }
-    mAuxEffectId = 0;
-    mOrigFlags = mFlags = flags;
-    mCbf = cbf;
-
-    if (cbf != NULL) {
-        mAudioTrackThread = new AudioTrackThread(*this, threadCanCallJava);
-        mAudioTrackThread->run("AudioTrack", ANDROID_PRIORITY_AUDIO, 0 /*stack*/);
-        // thread begins in paused state, and will not reference us until start()
-    }
-
-    // create the IAudioTrack
-    status_t status = createTrack_l();
-
-    if (status != NO_ERROR) {
-        if (mAudioTrackThread != 0) {
-            mAudioTrackThread->requestExit();   // see comment in AudioTrack.h
-            mAudioTrackThread->requestExitAndWait();
-            mAudioTrackThread.clear();
-        }
-        return status;
-    }
-
-    mStatus = NO_ERROR;
-    mUserData = user;
-    mLoopCount = 0;
-    mLoopStart = 0;
-    mLoopEnd = 0;
-    mLoopCountNotified = 0;
-    mMarkerPosition = 0;
-    mMarkerReached = false;
-    mNewPosition = 0;
-    mUpdatePeriod = 0;
-    mPosition = 0;
-    mReleased = 0;
-    mStartUs = 0;
-    AudioSystem::acquireAudioSessionId(mSessionId, mClientPid);
-    mSequence = 1;
-    mObservedSequence = mSequence;
-    mInUnderrun = false;
-    mPreviousTimestampValid = false;
-    mTimestampStartupGlitchReported = false;
-    mRetrogradeMotionReported = false;
-    mPreviousLocation = ExtendedTimestamp::LOCATION_INVALID;
-    mUnderrunCountOffset = 0;
-    mFramesWritten = 0;
-    mFramesWrittenServerOffset = 0;
-
-    return NO_ERROR;
-}
-
-// -------------------------------------------------------------------------
-
-status_t AudioTrack::start()
-{
-    AutoMutex lock(mLock);
-
-    if (mState == STATE_ACTIVE) {
-        return INVALID_OPERATION;
-    }
-
-    mInUnderrun = true;
-
-    State previousState = mState;
-    if (previousState == STATE_PAUSED_STOPPING) {
-        mState = STATE_STOPPING;
-    } else {
-        mState = STATE_ACTIVE;
-    }
-    (void) updateAndGetPosition_l();
-    if (previousState == STATE_STOPPED || previousState == STATE_FLUSHED) {
-        // reset current position as seen by client to 0
-        mPosition = 0;
-        mPreviousTimestampValid = false;
-        mTimestampStartupGlitchReported = false;
-        mRetrogradeMotionReported = false;
-        mPreviousLocation = ExtendedTimestamp::LOCATION_INVALID;
-
-        // read last server side position change via timestamp.
-        ExtendedTimestamp ets;
-        if (mProxy->getTimestamp(&ets) == OK &&
-                ets.mTimeNs[ExtendedTimestamp::LOCATION_SERVER] > 0) {
-            // Server side has consumed something, but is it finished consuming?
-            // It is possible since flush and stop are asynchronous that the server
-            // is still active at this point.
-            ALOGV("start: server read:%lld  cumulative flushed:%lld  client written:%lld",
-                    (long long)(mFramesWrittenServerOffset
-                            + ets.mPosition[ExtendedTimestamp::LOCATION_SERVER]),
-                    (long long)ets.mFlushed,
-                    (long long)mFramesWritten);
-            mFramesWrittenServerOffset = -ets.mPosition[ExtendedTimestamp::LOCATION_SERVER];
-        }
-        mFramesWritten = 0;
-        mProxy->clearTimestamp(); // need new server push for valid timestamp
-        mMarkerReached = false;
-
-        // For offloaded tracks, we don't know if the hardware counters are really zero here,
-        // since the flush is asynchronous and stop may not fully drain.
-        // We save the time when the track is started to later verify whether
-        // the counters are realistic (i.e. start from zero after this time).
-        mStartUs = getNowUs();
-
-        // force refresh of remaining frames by processAudioBuffer() as last
-        // write before stop could be partial.
-        mRefreshRemaining = true;
-    }
-    mNewPosition = mPosition + mUpdatePeriod;
-    int32_t flags = android_atomic_and(~CBLK_DISABLED, &mCblk->mFlags);
-
-    status_t status = NO_ERROR;
-    if (!(flags & CBLK_INVALID)) {
-        status = mAudioTrack->start();
-        if (status == DEAD_OBJECT) {
-            flags |= CBLK_INVALID;
-        }
-    }
-    if (flags & CBLK_INVALID) {
-        status = restoreTrack_l("start");
-    }
-
-    // resume or pause the callback thread as needed.
-    sp<AudioTrackThread> t = mAudioTrackThread;
-    if (status == NO_ERROR) {
-        if (t != 0) {
-            if (previousState == STATE_STOPPING) {
-                mProxy->interrupt();
-            } else {
-                t->resume();
-            }
-        } else {
-            mPreviousPriority = getpriority(PRIO_PROCESS, 0);
-            get_sched_policy(0, &mPreviousSchedulingGroup);
-            androidSetThreadPriority(0, ANDROID_PRIORITY_AUDIO);
-        }
-    } else {
-        ALOGE("start() status %d", status);
-        mState = previousState;
-        if (t != 0) {
-            if (previousState != STATE_STOPPING) {
-                t->pause();
-            }
-        } else {
-            setpriority(PRIO_PROCESS, 0, mPreviousPriority);
-            set_sched_policy(0, mPreviousSchedulingGroup);
-        }
-    }
-
-    return status;
-}
-
-void AudioTrack::stop()
-{
-    AutoMutex lock(mLock);
-    if (mState != STATE_ACTIVE && mState != STATE_PAUSED) {
-        return;
-    }
-
-    if (isOffloaded_l()) {
-        mState = STATE_STOPPING;
-    } else {
-        mState = STATE_STOPPED;
-        mReleased = 0;
-    }
-
-    mProxy->interrupt();
-    mAudioTrack->stop();
-
-    // Note: legacy handling - stop does not clear playback marker
-    // and periodic update counter, but flush does for streaming tracks.
-
-    if (mSharedBuffer != 0) {
-        // clear buffer position and loop count.
-        mStaticProxy->setBufferPositionAndLoop(0 /* position */,
-                0 /* loopStart */, 0 /* loopEnd */, 0 /* loopCount */);
-    }
-
-    sp<AudioTrackThread> t = mAudioTrackThread;
-    if (t != 0) {
-        if (!isOffloaded_l()) {
-            t->pause();
-        }
-    } else {
-        setpriority(PRIO_PROCESS, 0, mPreviousPriority);
-        set_sched_policy(0, mPreviousSchedulingGroup);
-    }
-}
-
-bool AudioTrack::stopped() const
-{
-    AutoMutex lock(mLock);
-    return mState != STATE_ACTIVE;
-}
-
-void AudioTrack::flush()
-{
-    if (mSharedBuffer != 0) {
-        return;
-    }
-    AutoMutex lock(mLock);
-    if (mState == STATE_ACTIVE || mState == STATE_FLUSHED) {
-        return;
-    }
-    flush_l();
-}
-
-void AudioTrack::flush_l()
-{
-    ALOG_ASSERT(mState != STATE_ACTIVE);
-
-    // clear playback marker and periodic update counter
-    mMarkerPosition = 0;
-    mMarkerReached = false;
-    mUpdatePeriod = 0;
-    mRefreshRemaining = true;
-
-    mState = STATE_FLUSHED;
-    mReleased = 0;
-    if (isOffloaded_l()) {
-        mProxy->interrupt();
-    }
-    mProxy->flush();
-    mAudioTrack->flush();
-}
-
-void AudioTrack::pause()
-{
-    AutoMutex lock(mLock);
-    if (mState == STATE_ACTIVE) {
-        mState = STATE_PAUSED;
-    } else if (mState == STATE_STOPPING) {
-        mState = STATE_PAUSED_STOPPING;
-    } else {
-        return;
-    }
-    mProxy->interrupt();
-    mAudioTrack->pause();
-
-    if (isOffloaded_l()) {
-        if (mOutput != AUDIO_IO_HANDLE_NONE) {
-            // An offload output can be re-used between two audio tracks having
-            // the same configuration. A timestamp query for a paused track
-            // while the other is running would return an incorrect time.
-            // To fix this, cache the playback position on a pause() and return
-            // this time when requested until the track is resumed.
-
-            // OffloadThread sends HAL pause in its threadLoop. Time saved
-            // here can be slightly off.
-
-            // TODO: check return code for getRenderPosition.
-
-            uint32_t halFrames;
-            AudioSystem::getRenderPosition(mOutput, &halFrames, &mPausedPosition);
-            ALOGV("AudioTrack::pause for offload, cache current position %u", mPausedPosition);
-        }
-    }
-}
-
-status_t AudioTrack::setVolume(float left, float right)
-{
-    // This duplicates a test by AudioTrack JNI, but that is not the only caller
-    if (isnanf(left) || left < GAIN_FLOAT_ZERO || left > GAIN_FLOAT_UNITY ||
-            isnanf(right) || right < GAIN_FLOAT_ZERO || right > GAIN_FLOAT_UNITY) {
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    mVolume[AUDIO_INTERLEAVE_LEFT] = left;
-    mVolume[AUDIO_INTERLEAVE_RIGHT] = right;
-
-    mProxy->setVolumeLR(gain_minifloat_pack(gain_from_float(left), gain_from_float(right)));
-
-    if (isOffloaded_l()) {
-        mAudioTrack->signal();
-    }
-    return NO_ERROR;
-}
-
-status_t AudioTrack::setVolume(float volume)
-{
-    return setVolume(volume, volume);
-}
-
-status_t AudioTrack::setAuxEffectSendLevel(float level)
-{
-    // This duplicates a test by AudioTrack JNI, but that is not the only caller
-    if (isnanf(level) || level < GAIN_FLOAT_ZERO || level > GAIN_FLOAT_UNITY) {
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    mSendLevel = level;
-    mProxy->setSendLevel(level);
-
-    return NO_ERROR;
-}
-
-void AudioTrack::getAuxEffectSendLevel(float* level) const
-{
-    if (level != NULL) {
-        *level = mSendLevel;
-    }
-}
-
-status_t AudioTrack::setSampleRate(uint32_t rate)
-{
-    AutoMutex lock(mLock);
-    if (rate == mSampleRate) {
-        return NO_ERROR;
-    }
-    if (isOffloadedOrDirect_l() || (mFlags & AUDIO_OUTPUT_FLAG_FAST)) {
-        return INVALID_OPERATION;
-    }
-    if (mOutput == AUDIO_IO_HANDLE_NONE) {
-        return NO_INIT;
-    }
-    // NOTE: it is theoretically possible, but highly unlikely, that a device change
-    // could mean a previously allowed sampling rate is no longer allowed.
-    uint32_t afSamplingRate;
-    if (AudioSystem::getSamplingRate(mOutput, &afSamplingRate) != NO_ERROR) {
-        return NO_INIT;
-    }
-    // pitch is emulated by adjusting speed and sampleRate
-    const uint32_t effectiveSampleRate = adjustSampleRate(rate, mPlaybackRate.mPitch);
-    if (rate == 0 || effectiveSampleRate > afSamplingRate * AUDIO_RESAMPLER_DOWN_RATIO_MAX) {
-        return BAD_VALUE;
-    }
-    // TODO: Should we also check if the buffer size is compatible?
-
-    mSampleRate = rate;
-    mProxy->setSampleRate(effectiveSampleRate);
-
-    return NO_ERROR;
-}
-
-uint32_t AudioTrack::getSampleRate() const
-{
-    AutoMutex lock(mLock);
-
-    // sample rate can be updated during playback by the offloaded decoder so we need to
-    // query the HAL and update if needed.
-// FIXME use Proxy return channel to update the rate from server and avoid polling here
-    if (isOffloadedOrDirect_l()) {
-        if (mOutput != AUDIO_IO_HANDLE_NONE) {
-            uint32_t sampleRate = 0;
-            status_t status = AudioSystem::getSamplingRate(mOutput, &sampleRate);
-            if (status == NO_ERROR) {
-                mSampleRate = sampleRate;
-            }
-        }
-    }
-    return mSampleRate;
-}
-
-uint32_t AudioTrack::getOriginalSampleRate() const
-{
-    return mOriginalSampleRate;
-}
-
-status_t AudioTrack::setPlaybackRate(const AudioPlaybackRate &playbackRate)
-{
-    AutoMutex lock(mLock);
-    if (isAudioPlaybackRateEqual(playbackRate, mPlaybackRate)) {
-        return NO_ERROR;
-    }
-    if (isOffloadedOrDirect_l()) {
-        return INVALID_OPERATION;
-    }
-    if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
-        return INVALID_OPERATION;
-    }
-
-    ALOGV("setPlaybackRate (input): mSampleRate:%u  mSpeed:%f  mPitch:%f",
-            mSampleRate, playbackRate.mSpeed, playbackRate.mPitch);
-    // pitch is emulated by adjusting speed and sampleRate
-    const uint32_t effectiveRate = adjustSampleRate(mSampleRate, playbackRate.mPitch);
-    const float effectiveSpeed = adjustSpeed(playbackRate.mSpeed, playbackRate.mPitch);
-    const float effectivePitch = adjustPitch(playbackRate.mPitch);
-    AudioPlaybackRate playbackRateTemp = playbackRate;
-    playbackRateTemp.mSpeed = effectiveSpeed;
-    playbackRateTemp.mPitch = effectivePitch;
-
-    ALOGV("setPlaybackRate (effective): mSampleRate:%u  mSpeed:%f  mPitch:%f",
-            effectiveRate, effectiveSpeed, effectivePitch);
-
-    if (!isAudioPlaybackRateValid(playbackRateTemp)) {
-        ALOGV("setPlaybackRate(%f, %f) failed (effective rate out of bounds)",
-                playbackRate.mSpeed, playbackRate.mPitch);
-        return BAD_VALUE;
-    }
-    // Check if the buffer size is compatible.
-    if (!isSampleRateSpeedAllowed_l(effectiveRate, effectiveSpeed)) {
-        ALOGV("setPlaybackRate(%f, %f) failed (buffer size)",
-                playbackRate.mSpeed, playbackRate.mPitch);
-        return BAD_VALUE;
-    }
-
-    // Check resampler ratios are within bounds
-    if ((uint64_t)effectiveRate > (uint64_t)mSampleRate * (uint64_t)AUDIO_RESAMPLER_DOWN_RATIO_MAX) {
-        ALOGV("setPlaybackRate(%f, %f) failed. Resample rate exceeds max accepted value",
-                playbackRate.mSpeed, playbackRate.mPitch);
-        return BAD_VALUE;
-    }
-
-    if ((uint64_t)effectiveRate * (uint64_t)AUDIO_RESAMPLER_UP_RATIO_MAX < (uint64_t)mSampleRate) {
-        ALOGV("setPlaybackRate(%f, %f) failed. Resample rate below min accepted value",
-                        playbackRate.mSpeed, playbackRate.mPitch);
-        return BAD_VALUE;
-    }
-    mPlaybackRate = playbackRate;
-    //set effective rates
-    mProxy->setPlaybackRate(playbackRateTemp);
-    mProxy->setSampleRate(effectiveRate); // FIXME: not quite "atomic" with setPlaybackRate
-    return NO_ERROR;
-}
-
-const AudioPlaybackRate& AudioTrack::getPlaybackRate() const
-{
-    AutoMutex lock(mLock);
-    return mPlaybackRate;
-}
-
-ssize_t AudioTrack::getBufferSizeInFrames()
-{
-    AutoMutex lock(mLock);
-    if (mOutput == AUDIO_IO_HANDLE_NONE || mProxy.get() == 0) {
-        return NO_INIT;
-    }
-    return (ssize_t) mProxy->getBufferSizeInFrames();
-}
-
-status_t AudioTrack::getBufferDurationInUs(int64_t *duration)
-{
-    if (duration == nullptr) {
-        return BAD_VALUE;
-    }
-    AutoMutex lock(mLock);
-    if (mOutput == AUDIO_IO_HANDLE_NONE || mProxy.get() == 0) {
-        return NO_INIT;
-    }
-    ssize_t bufferSizeInFrames = (ssize_t) mProxy->getBufferSizeInFrames();
-    if (bufferSizeInFrames < 0) {
-        return (status_t)bufferSizeInFrames;
-    }
-    *duration = (int64_t)((double)bufferSizeInFrames * 1000000
-            / ((double)mSampleRate * mPlaybackRate.mSpeed));
-    return NO_ERROR;
-}
-
-ssize_t AudioTrack::setBufferSizeInFrames(size_t bufferSizeInFrames)
-{
-    AutoMutex lock(mLock);
-    if (mOutput == AUDIO_IO_HANDLE_NONE || mProxy.get() == 0) {
-        return NO_INIT;
-    }
-    // Reject if timed track or compressed audio.
-    if (!audio_is_linear_pcm(mFormat)) {
-        return INVALID_OPERATION;
-    }
-    return (ssize_t) mProxy->setBufferSizeInFrames((uint32_t) bufferSizeInFrames);
-}
-
-status_t AudioTrack::setLoop(uint32_t loopStart, uint32_t loopEnd, int loopCount)
-{
-    if (mSharedBuffer == 0 || isOffloadedOrDirect()) {
-        return INVALID_OPERATION;
-    }
-
-    if (loopCount == 0) {
-        ;
-    } else if (loopCount >= -1 && loopStart < loopEnd && loopEnd <= mFrameCount &&
-            loopEnd - loopStart >= MIN_LOOP) {
-        ;
-    } else {
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    // See setPosition() regarding setting parameters such as loop points or position while active
-    if (mState == STATE_ACTIVE) {
-        return INVALID_OPERATION;
-    }
-    setLoop_l(loopStart, loopEnd, loopCount);
-    return NO_ERROR;
-}
-
-void AudioTrack::setLoop_l(uint32_t loopStart, uint32_t loopEnd, int loopCount)
-{
-    // We do not update the periodic notification point.
-    // mNewPosition = updateAndGetPosition_l() + mUpdatePeriod;
-    mLoopCount = loopCount;
-    mLoopEnd = loopEnd;
-    mLoopStart = loopStart;
-    mLoopCountNotified = loopCount;
-    mStaticProxy->setLoop(loopStart, loopEnd, loopCount);
-
-    // Waking the AudioTrackThread is not needed as this cannot be called when active.
-}
-
-status_t AudioTrack::setMarkerPosition(uint32_t marker)
-{
-    // The only purpose of setting marker position is to get a callback
-    if (mCbf == NULL || isOffloadedOrDirect()) {
-        return INVALID_OPERATION;
-    }
-
-    AutoMutex lock(mLock);
-    mMarkerPosition = marker;
-    mMarkerReached = false;
-
-    sp<AudioTrackThread> t = mAudioTrackThread;
-    if (t != 0) {
-        t->wake();
-    }
-    return NO_ERROR;
-}
-
-status_t AudioTrack::getMarkerPosition(uint32_t *marker) const
-{
-    if (isOffloadedOrDirect()) {
-        return INVALID_OPERATION;
-    }
-    if (marker == NULL) {
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    mMarkerPosition.getValue(marker);
-
-    return NO_ERROR;
-}
-
-status_t AudioTrack::setPositionUpdatePeriod(uint32_t updatePeriod)
-{
-    // The only purpose of setting position update period is to get a callback
-    if (mCbf == NULL || isOffloadedOrDirect()) {
-        return INVALID_OPERATION;
-    }
-
-    AutoMutex lock(mLock);
-    mNewPosition = updateAndGetPosition_l() + updatePeriod;
-    mUpdatePeriod = updatePeriod;
-
-    sp<AudioTrackThread> t = mAudioTrackThread;
-    if (t != 0) {
-        t->wake();
-    }
-    return NO_ERROR;
-}
-
-status_t AudioTrack::getPositionUpdatePeriod(uint32_t *updatePeriod) const
-{
-    if (isOffloadedOrDirect()) {
-        return INVALID_OPERATION;
-    }
-    if (updatePeriod == NULL) {
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    *updatePeriod = mUpdatePeriod;
-
-    return NO_ERROR;
-}
-
-status_t AudioTrack::setPosition(uint32_t position)
-{
-    if (mSharedBuffer == 0 || isOffloadedOrDirect()) {
-        return INVALID_OPERATION;
-    }
-    if (position > mFrameCount) {
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    // Currently we require that the player is inactive before setting parameters such as position
-    // or loop points.  Otherwise, there could be a race condition: the application could read the
-    // current position, compute a new position or loop parameters, and then set that position or
-    // loop parameters but it would do the "wrong" thing since the position has continued to advance
-    // in the mean time.  If we ever provide a sequencer in server, we could allow a way for the app
-    // to specify how it wants to handle such scenarios.
-    if (mState == STATE_ACTIVE) {
-        return INVALID_OPERATION;
-    }
-    // After setting the position, use full update period before notification.
-    mNewPosition = updateAndGetPosition_l() + mUpdatePeriod;
-    mStaticProxy->setBufferPosition(position);
-
-    // Waking the AudioTrackThread is not needed as this cannot be called when active.
-    return NO_ERROR;
-}
-
-status_t AudioTrack::getPosition(uint32_t *position)
-{
-    if (position == NULL) {
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    // FIXME: offloaded and direct tracks call into the HAL for render positions
-    // for compressed/synced data; however, we use proxy position for pure linear pcm data
-    // as we do not know the capability of the HAL for pcm position support and standby.
-    // There may be some latency differences between the HAL position and the proxy position.
-    if (isOffloadedOrDirect_l() && !isPurePcmData_l()) {
-        uint32_t dspFrames = 0;
-
-        if (isOffloaded_l() && ((mState == STATE_PAUSED) || (mState == STATE_PAUSED_STOPPING))) {
-            ALOGV("getPosition called in paused state, return cached position %u", mPausedPosition);
-            *position = mPausedPosition;
-            return NO_ERROR;
-        }
-
-        if (mOutput != AUDIO_IO_HANDLE_NONE) {
-            uint32_t halFrames; // actually unused
-            (void) AudioSystem::getRenderPosition(mOutput, &halFrames, &dspFrames);
-            // FIXME: on getRenderPosition() error, we return OK with frame position 0.
-        }
-        // FIXME: dspFrames may not be zero in (mState == STATE_STOPPED || mState == STATE_FLUSHED)
-        // due to hardware latency. We leave this behavior for now.
-        *position = dspFrames;
-    } else {
-        if (mCblk->mFlags & CBLK_INVALID) {
-            (void) restoreTrack_l("getPosition");
-            // FIXME: for compatibility with the Java API we ignore the restoreTrack_l()
-            // error here (e.g. DEAD_OBJECT) and return OK with the last recorded server position.
-        }
-
-        // IAudioTrack::stop() isn't synchronous; we don't know when presentation completes
-        *position = (mState == STATE_STOPPED || mState == STATE_FLUSHED) ?
-                0 : updateAndGetPosition_l().value();
-    }
-    return NO_ERROR;
-}
-
-status_t AudioTrack::getBufferPosition(uint32_t *position)
-{
-    if (mSharedBuffer == 0) {
-        return INVALID_OPERATION;
-    }
-    if (position == NULL) {
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    *position = mStaticProxy->getBufferPosition();
-    return NO_ERROR;
-}
-
-status_t AudioTrack::reload()
-{
-    if (mSharedBuffer == 0 || isOffloadedOrDirect()) {
-        return INVALID_OPERATION;
-    }
-
-    AutoMutex lock(mLock);
-    // See setPosition() regarding setting parameters such as loop points or position while active
-    if (mState == STATE_ACTIVE) {
-        return INVALID_OPERATION;
-    }
-    mNewPosition = mUpdatePeriod;
-    (void) updateAndGetPosition_l();
-    mPosition = 0;
-    mPreviousTimestampValid = false;
-#if 0
-    // The documentation is not clear on the behavior of reload() and the restoration
-    // of loop count. Historically we have not restored loop count, start, end,
-    // but it makes sense if one desires to repeat playing a particular sound.
-    if (mLoopCount != 0) {
-        mLoopCountNotified = mLoopCount;
-        mStaticProxy->setLoop(mLoopStart, mLoopEnd, mLoopCount);
-    }
-#endif
-    mStaticProxy->setBufferPosition(0);
-    return NO_ERROR;
-}
-
-audio_io_handle_t AudioTrack::getOutput() const
-{
-    AutoMutex lock(mLock);
-    return mOutput;
-}
-
-status_t AudioTrack::setOutputDevice(audio_port_handle_t deviceId) {
-    AutoMutex lock(mLock);
-    if (mSelectedDeviceId != deviceId) {
-        mSelectedDeviceId = deviceId;
-        android_atomic_or(CBLK_INVALID, &mCblk->mFlags);
-    }
-    return NO_ERROR;
-}
-
-audio_port_handle_t AudioTrack::getOutputDevice() {
-    AutoMutex lock(mLock);
-    return mSelectedDeviceId;
-}
-
-audio_port_handle_t AudioTrack::getRoutedDeviceId() {
-    AutoMutex lock(mLock);
-    if (mOutput == AUDIO_IO_HANDLE_NONE) {
-        return AUDIO_PORT_HANDLE_NONE;
-    }
-    return AudioSystem::getDeviceIdForIo(mOutput);
-}
-
-status_t AudioTrack::attachAuxEffect(int effectId)
-{
-    AutoMutex lock(mLock);
-    status_t status = mAudioTrack->attachAuxEffect(effectId);
-    if (status == NO_ERROR) {
-        mAuxEffectId = effectId;
-    }
-    return status;
-}
-
-audio_stream_type_t AudioTrack::streamType() const
-{
-    if (mStreamType == AUDIO_STREAM_DEFAULT) {
-        return audio_attributes_to_stream_type(&mAttributes);
-    }
-    return mStreamType;
-}
-
-// -------------------------------------------------------------------------
-
-// must be called with mLock held
-status_t AudioTrack::createTrack_l()
-{
-    const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger();
-    if (audioFlinger == 0) {
-        ALOGE("Could not get audioflinger");
-        return NO_INIT;
-    }
-
-    if (mDeviceCallback != 0 && mOutput != AUDIO_IO_HANDLE_NONE) {
-        AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mOutput);
-    }
-    audio_io_handle_t output;
-    audio_stream_type_t streamType = mStreamType;
-    audio_attributes_t *attr = (mStreamType == AUDIO_STREAM_DEFAULT) ? &mAttributes : NULL;
-
-    // mFlags (not mOrigFlags) is modified depending on whether fast request is accepted.
-    // After fast request is denied, we will request again if IAudioTrack is re-created.
-
-    status_t status;
-    status = AudioSystem::getOutputForAttr(attr, &output,
-                                           mSessionId, &streamType, mClientUid,
-                                           mSampleRate, mFormat, mChannelMask,
-                                           mFlags, mSelectedDeviceId, mOffloadInfo);
-
-    if (status != NO_ERROR || output == AUDIO_IO_HANDLE_NONE) {
-        ALOGE("Could not get audio output for session %d, stream type %d, usage %d, sample rate %u, format %#x,"
-              " channel mask %#x, flags %#x",
-              mSessionId, streamType, mAttributes.usage, mSampleRate, mFormat, mChannelMask, mFlags);
-        return BAD_VALUE;
-    }
-    {
-    // Now that we have a reference to an I/O handle and have not yet handed it off to AudioFlinger,
-    // we must release it ourselves if anything goes wrong.
-
-    // Not all of these values are needed under all conditions, but it is easier to get them all
-    status = AudioSystem::getLatency(output, &mAfLatency);
-    if (status != NO_ERROR) {
-        ALOGE("getLatency(%d) failed status %d", output, status);
-        goto release;
-    }
-    ALOGV("createTrack_l() output %d afLatency %u", output, mAfLatency);
-
-    status = AudioSystem::getFrameCount(output, &mAfFrameCount);
-    if (status != NO_ERROR) {
-        ALOGE("getFrameCount(output=%d) status %d", output, status);
-        goto release;
-    }
-
-    // TODO consider making this a member variable if there are other uses for it later
-    size_t afFrameCountHAL;
-    status = AudioSystem::getFrameCountHAL(output, &afFrameCountHAL);
-    if (status != NO_ERROR) {
-        ALOGE("getFrameCountHAL(output=%d) status %d", output, status);
-        goto release;
-    }
-    ALOG_ASSERT(afFrameCountHAL > 0);
-
-    status = AudioSystem::getSamplingRate(output, &mAfSampleRate);
-    if (status != NO_ERROR) {
-        ALOGE("getSamplingRate(output=%d) status %d", output, status);
-        goto release;
-    }
-    if (mSampleRate == 0) {
-        mSampleRate = mAfSampleRate;
-        mOriginalSampleRate = mAfSampleRate;
-    }
-
-    // Client can only express a preference for FAST.  Server will perform additional tests.
-    if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
-        bool useCaseAllowed =
-            // either of these use cases:
-            // use case 1: shared buffer
-            (mSharedBuffer != 0) ||
-            // use case 2: callback transfer mode
-            (mTransfer == TRANSFER_CALLBACK) ||
-            // use case 3: obtain/release mode
-            (mTransfer == TRANSFER_OBTAIN) ||
-            // use case 4: synchronous write
-            ((mTransfer == TRANSFER_SYNC) && mThreadCanCallJava);
-        // sample rates must also match
-        bool fastAllowed = useCaseAllowed && (mSampleRate == mAfSampleRate);
-        if (!fastAllowed) {
-            ALOGW("AUDIO_OUTPUT_FLAG_FAST denied by client; transfer %d, "
-                "track %u Hz, output %u Hz",
-                mTransfer, mSampleRate, mAfSampleRate);
-            mFlags = (audio_output_flags_t) (mFlags & ~AUDIO_OUTPUT_FLAG_FAST);
-        }
-    }
-
-    mNotificationFramesAct = mNotificationFramesReq;
-
-    size_t frameCount = mReqFrameCount;
-    if (!audio_has_proportional_frames(mFormat)) {
-
-        if (mSharedBuffer != 0) {
-            // Same comment as below about ignoring frameCount parameter for set()
-            frameCount = mSharedBuffer->size();
-        } else if (frameCount == 0) {
-            frameCount = mAfFrameCount;
-        }
-        if (mNotificationFramesAct != frameCount) {
-            mNotificationFramesAct = frameCount;
-        }
-    } else if (mSharedBuffer != 0) {
-        // FIXME: Ensure client side memory buffers need
-        // not have additional alignment beyond sample
-        // (e.g. 16 bit stereo accessed as 32 bit frame).
-        size_t alignment = audio_bytes_per_sample(mFormat);
-        if (alignment & 1) {
-            // for AUDIO_FORMAT_PCM_24_BIT_PACKED (not exposed through Java).
-            alignment = 1;
-        }
-        if (mChannelCount > 1) {
-            // More than 2 channels does not require stronger alignment than stereo
-            alignment <<= 1;
-        }
-        if (((uintptr_t)mSharedBuffer->pointer() & (alignment - 1)) != 0) {
-            ALOGE("Invalid buffer alignment: address %p, channel count %u",
-                    mSharedBuffer->pointer(), mChannelCount);
-            status = BAD_VALUE;
-            goto release;
-        }
-
-        // When initializing a shared buffer AudioTrack via constructors,
-        // there's no frameCount parameter.
-        // But when initializing a shared buffer AudioTrack via set(),
-        // there _is_ a frameCount parameter.  We silently ignore it.
-        frameCount = mSharedBuffer->size() / mFrameSize;
-    } else {
-        size_t minFrameCount = 0;
-        // For fast tracks the frame count calculations and checks are mostly done by server,
-        // but we try to respect the application's request for notifications per buffer.
-        if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
-            if (mNotificationsPerBufferReq > 0) {
-                // Avoid possible arithmetic overflow during multiplication.
-                // mNotificationsPerBuffer is clamped to a small integer earlier, so it is unlikely.
-                if (mNotificationsPerBufferReq > SIZE_MAX / afFrameCountHAL) {
-                    ALOGE("Requested notificationPerBuffer=%u ignored for HAL frameCount=%zu",
-                            mNotificationsPerBufferReq, afFrameCountHAL);
-                } else {
-                    minFrameCount = afFrameCountHAL * mNotificationsPerBufferReq;
-                }
-            }
-        } else {
-            // for normal tracks precompute the frame count based on speed.
-            const float speed = !isPurePcmData_l() || isOffloadedOrDirect_l() ? 1.0f :
-                            max(mMaxRequiredSpeed, mPlaybackRate.mSpeed);
-            minFrameCount = calculateMinFrameCount(
-                    mAfLatency, mAfFrameCount, mAfSampleRate, mSampleRate,
-                    speed /*, 0 mNotificationsPerBufferReq*/);
-        }
-        if (frameCount < minFrameCount) {
-            frameCount = minFrameCount;
-        }
-    }
-
-    audio_output_flags_t flags = mFlags;
-
-    pid_t tid = -1;
-    if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
-        if (mAudioTrackThread != 0 && !mThreadCanCallJava) {
-            tid = mAudioTrackThread->getTid();
-        }
-    }
-
-    size_t temp = frameCount;   // temp may be replaced by a revised value of frameCount,
-                                // but we will still need the original value also
-    audio_session_t originalSessionId = mSessionId;
-    sp<IAudioTrack> track = audioFlinger->createTrack(streamType,
-                                                      mSampleRate,
-                                                      mFormat,
-                                                      mChannelMask,
-                                                      &temp,
-                                                      &flags,
-                                                      mSharedBuffer,
-                                                      output,
-                                                      mClientPid,
-                                                      tid,
-                                                      &mSessionId,
-                                                      mClientUid,
-                                                      &status);
-    ALOGE_IF(originalSessionId != AUDIO_SESSION_ALLOCATE && mSessionId != originalSessionId,
-            "session ID changed from %d to %d", originalSessionId, mSessionId);
-
-    if (status != NO_ERROR) {
-        ALOGE("AudioFlinger could not create track, status: %d", status);
-        goto release;
-    }
-    ALOG_ASSERT(track != 0);
-
-    // AudioFlinger now owns the reference to the I/O handle,
-    // so we are no longer responsible for releasing it.
-
-    // FIXME compare to AudioRecord
-    sp<IMemory> iMem = track->getCblk();
-    if (iMem == 0) {
-        ALOGE("Could not get control block");
-        return NO_INIT;
-    }
-    void *iMemPointer = iMem->pointer();
-    if (iMemPointer == NULL) {
-        ALOGE("Could not get control block pointer");
-        return NO_INIT;
-    }
-    // invariant that mAudioTrack != 0 is true only after set() returns successfully
-    if (mAudioTrack != 0) {
-        IInterface::asBinder(mAudioTrack)->unlinkToDeath(mDeathNotifier, this);
-        mDeathNotifier.clear();
-    }
-    mAudioTrack = track;
-    mCblkMemory = iMem;
-    IPCThreadState::self()->flushCommands();
-
-    audio_track_cblk_t* cblk = static_cast<audio_track_cblk_t*>(iMemPointer);
-    mCblk = cblk;
-    // note that temp is the (possibly revised) value of frameCount
-    if (temp < frameCount || (frameCount == 0 && temp == 0)) {
-        // In current design, AudioTrack client checks and ensures frame count validity before
-        // passing it to AudioFlinger so AudioFlinger should not return a different value except
-        // for fast track as it uses a special method of assigning frame count.
-        ALOGW("Requested frameCount %zu but received frameCount %zu", frameCount, temp);
-    }
-    frameCount = temp;
-
-    mAwaitBoost = false;
-    if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
-        if (flags & AUDIO_OUTPUT_FLAG_FAST) {
-            ALOGV("AUDIO_OUTPUT_FLAG_FAST successful; frameCount %zu", frameCount);
-            if (!mThreadCanCallJava) {
-                mAwaitBoost = true;
-            }
-        } else {
-            ALOGW("AUDIO_OUTPUT_FLAG_FAST denied by server; frameCount %zu", frameCount);
-        }
-    }
-    mFlags = flags;
-
-    // Make sure that application is notified with sufficient margin before underrun.
-    // The client can divide the AudioTrack buffer into sub-buffers,
-    // and expresses its desire to server as the notification frame count.
-    if (mSharedBuffer == 0 && audio_is_linear_pcm(mFormat)) {
-        size_t maxNotificationFrames;
-        if (mFlags & AUDIO_OUTPUT_FLAG_FAST) {
-            // notify every HAL buffer, regardless of the size of the track buffer
-            maxNotificationFrames = afFrameCountHAL;
-        } else {
-            // For normal tracks, use at least double-buffering if no sample rate conversion,
-            // or at least triple-buffering if there is sample rate conversion
-            const int nBuffering = mOriginalSampleRate == mAfSampleRate ? 2 : 3;
-            maxNotificationFrames = frameCount / nBuffering;
-        }
-        if (mNotificationFramesAct == 0 || mNotificationFramesAct > maxNotificationFrames) {
-            if (mNotificationFramesAct == 0) {
-                ALOGD("Client defaulted notificationFrames to %zu for frameCount %zu",
-                    maxNotificationFrames, frameCount);
-            } else {
-                ALOGW("Client adjusted notificationFrames from %u to %zu for frameCount %zu",
-                    mNotificationFramesAct, maxNotificationFrames, frameCount);
-            }
-            mNotificationFramesAct = (uint32_t) maxNotificationFrames;
-        }
-    }
-
-    // We retain a copy of the I/O handle, but don't own the reference
-    mOutput = output;
-    mRefreshRemaining = true;
-
-    // Starting address of buffers in shared memory.  If there is a shared buffer, buffers
-    // is the value of pointer() for the shared buffer, otherwise buffers points
-    // immediately after the control block.  This address is for the mapping within client
-    // address space.  AudioFlinger::TrackBase::mBuffer is for the server address space.
-    void* buffers;
-    if (mSharedBuffer == 0) {
-        buffers = cblk + 1;
-    } else {
-        buffers = mSharedBuffer->pointer();
-        if (buffers == NULL) {
-            ALOGE("Could not get buffer pointer");
-            return NO_INIT;
-        }
-    }
-
-    mAudioTrack->attachAuxEffect(mAuxEffectId);
-    // FIXME doesn't take into account speed or future sample rate changes (until restoreTrack)
-    // FIXME don't believe this lie
-    mLatency = mAfLatency + (1000*frameCount) / mSampleRate;
-
-    mFrameCount = frameCount;
-    // If IAudioTrack is re-created, don't let the requested frameCount
-    // decrease.  This can confuse clients that cache frameCount().
-    if (frameCount > mReqFrameCount) {
-        mReqFrameCount = frameCount;
-    }
-
-    // reset server position to 0 as we have new cblk.
-    mServer = 0;
-
-    // update proxy
-    if (mSharedBuffer == 0) {
-        mStaticProxy.clear();
-        mProxy = new AudioTrackClientProxy(cblk, buffers, frameCount, mFrameSize);
-    } else {
-        mStaticProxy = new StaticAudioTrackClientProxy(cblk, buffers, frameCount, mFrameSize);
-        mProxy = mStaticProxy;
-    }
-
-    mProxy->setVolumeLR(gain_minifloat_pack(
-            gain_from_float(mVolume[AUDIO_INTERLEAVE_LEFT]),
-            gain_from_float(mVolume[AUDIO_INTERLEAVE_RIGHT])));
-
-    mProxy->setSendLevel(mSendLevel);
-    const uint32_t effectiveSampleRate = adjustSampleRate(mSampleRate, mPlaybackRate.mPitch);
-    const float effectiveSpeed = adjustSpeed(mPlaybackRate.mSpeed, mPlaybackRate.mPitch);
-    const float effectivePitch = adjustPitch(mPlaybackRate.mPitch);
-    mProxy->setSampleRate(effectiveSampleRate);
-
-    AudioPlaybackRate playbackRateTemp = mPlaybackRate;
-    playbackRateTemp.mSpeed = effectiveSpeed;
-    playbackRateTemp.mPitch = effectivePitch;
-    mProxy->setPlaybackRate(playbackRateTemp);
-    mProxy->setMinimum(mNotificationFramesAct);
-
-    mDeathNotifier = new DeathNotifier(this);
-    IInterface::asBinder(mAudioTrack)->linkToDeath(mDeathNotifier, this);
-
-    if (mDeviceCallback != 0) {
-        AudioSystem::addAudioDeviceCallback(mDeviceCallback, mOutput);
-    }
-
-    return NO_ERROR;
-    }
-
-release:
-    AudioSystem::releaseOutput(output, streamType, mSessionId);
-    if (status == NO_ERROR) {
-        status = NO_INIT;
-    }
-    return status;
-}
-
-status_t AudioTrack::obtainBuffer(Buffer* audioBuffer, int32_t waitCount, size_t *nonContig)
-{
-    if (audioBuffer == NULL) {
-        if (nonContig != NULL) {
-            *nonContig = 0;
-        }
-        return BAD_VALUE;
-    }
-    if (mTransfer != TRANSFER_OBTAIN) {
-        audioBuffer->frameCount = 0;
-        audioBuffer->size = 0;
-        audioBuffer->raw = NULL;
-        if (nonContig != NULL) {
-            *nonContig = 0;
-        }
-        return INVALID_OPERATION;
-    }
-
-    const struct timespec *requested;
-    struct timespec timeout;
-    if (waitCount == -1) {
-        requested = &ClientProxy::kForever;
-    } else if (waitCount == 0) {
-        requested = &ClientProxy::kNonBlocking;
-    } else if (waitCount > 0) {
-        long long ms = WAIT_PERIOD_MS * (long long) waitCount;
-        timeout.tv_sec = ms / 1000;
-        timeout.tv_nsec = (int) (ms % 1000) * 1000000;
-        requested = &timeout;
-    } else {
-        ALOGE("%s invalid waitCount %d", __func__, waitCount);
-        requested = NULL;
-    }
-    return obtainBuffer(audioBuffer, requested, NULL /*elapsed*/, nonContig);
-}
-
-status_t AudioTrack::obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
-        struct timespec *elapsed, size_t *nonContig)
-{
-    // previous and new IAudioTrack sequence numbers are used to detect track re-creation
-    uint32_t oldSequence = 0;
-    uint32_t newSequence;
-
-    Proxy::Buffer buffer;
-    status_t status = NO_ERROR;
-
-    static const int32_t kMaxTries = 5;
-    int32_t tryCounter = kMaxTries;
-
-    do {
-        // obtainBuffer() is called with mutex unlocked, so keep extra references to these fields to
-        // keep them from going away if another thread re-creates the track during obtainBuffer()
-        sp<AudioTrackClientProxy> proxy;
-        sp<IMemory> iMem;
-
-        {   // start of lock scope
-            AutoMutex lock(mLock);
-
-            newSequence = mSequence;
-            // did previous obtainBuffer() fail due to media server death or voluntary invalidation?
-            if (status == DEAD_OBJECT) {
-                // re-create track, unless someone else has already done so
-                if (newSequence == oldSequence) {
-                    status = restoreTrack_l("obtainBuffer");
-                    if (status != NO_ERROR) {
-                        buffer.mFrameCount = 0;
-                        buffer.mRaw = NULL;
-                        buffer.mNonContig = 0;
-                        break;
-                    }
-                }
-            }
-            oldSequence = newSequence;
-
-            if (status == NOT_ENOUGH_DATA) {
-                restartIfDisabled();
-            }
-
-            // Keep the extra references
-            proxy = mProxy;
-            iMem = mCblkMemory;
-
-            if (mState == STATE_STOPPING) {
-                status = -EINTR;
-                buffer.mFrameCount = 0;
-                buffer.mRaw = NULL;
-                buffer.mNonContig = 0;
-                break;
-            }
-
-            // Non-blocking if track is stopped or paused
-            if (mState != STATE_ACTIVE) {
-                requested = &ClientProxy::kNonBlocking;
-            }
-
-        }   // end of lock scope
-
-        buffer.mFrameCount = audioBuffer->frameCount;
-        // FIXME starts the requested timeout and elapsed over from scratch
-        status = proxy->obtainBuffer(&buffer, requested, elapsed);
-    } while (((status == DEAD_OBJECT) || (status == NOT_ENOUGH_DATA)) && (tryCounter-- > 0));
-
-    audioBuffer->frameCount = buffer.mFrameCount;
-    audioBuffer->size = buffer.mFrameCount * mFrameSize;
-    audioBuffer->raw = buffer.mRaw;
-    if (nonContig != NULL) {
-        *nonContig = buffer.mNonContig;
-    }
-    return status;
-}
-
-void AudioTrack::releaseBuffer(const Buffer* audioBuffer)
-{
-    // FIXME add error checking on mode, by adding an internal version
-    if (mTransfer == TRANSFER_SHARED) {
-        return;
-    }
-
-    size_t stepCount = audioBuffer->size / mFrameSize;
-    if (stepCount == 0) {
-        return;
-    }
-
-    Proxy::Buffer buffer;
-    buffer.mFrameCount = stepCount;
-    buffer.mRaw = audioBuffer->raw;
-
-    AutoMutex lock(mLock);
-    mReleased += stepCount;
-    mInUnderrun = false;
-    mProxy->releaseBuffer(&buffer);
-
-    // restart track if it was disabled by audioflinger due to previous underrun
-    restartIfDisabled();
-}
-
-void AudioTrack::restartIfDisabled()
-{
-    int32_t flags = android_atomic_and(~CBLK_DISABLED, &mCblk->mFlags);
-    if ((mState == STATE_ACTIVE) && (flags & CBLK_DISABLED)) {
-        ALOGW("releaseBuffer() track %p disabled due to previous underrun, restarting", this);
-        // FIXME ignoring status
-        mAudioTrack->start();
-    }
-}
-
-// -------------------------------------------------------------------------
-
-ssize_t AudioTrack::write(const void* buffer, size_t userSize, bool blocking)
-{
-    if (mTransfer != TRANSFER_SYNC) {
-        return INVALID_OPERATION;
-    }
-
-    if (isDirect()) {
-        AutoMutex lock(mLock);
-        int32_t flags = android_atomic_and(
-                            ~(CBLK_UNDERRUN | CBLK_LOOP_CYCLE | CBLK_LOOP_FINAL | CBLK_BUFFER_END),
-                            &mCblk->mFlags);
-        if (flags & CBLK_INVALID) {
-            return DEAD_OBJECT;
-        }
-    }
-
-    if (ssize_t(userSize) < 0 || (buffer == NULL && userSize != 0)) {
-        // Sanity-check: user is most-likely passing an error code, and it would
-        // make the return value ambiguous (actualSize vs error).
-        ALOGE("AudioTrack::write(buffer=%p, size=%zu (%zd)", buffer, userSize, userSize);
-        return BAD_VALUE;
-    }
-
-    size_t written = 0;
-    Buffer audioBuffer;
-
-    while (userSize >= mFrameSize) {
-        audioBuffer.frameCount = userSize / mFrameSize;
-
-        status_t err = obtainBuffer(&audioBuffer,
-                blocking ? &ClientProxy::kForever : &ClientProxy::kNonBlocking);
-        if (err < 0) {
-            if (written > 0) {
-                break;
-            }
-            if (err == TIMED_OUT || err == -EINTR) {
-                err = WOULD_BLOCK;
-            }
-            return ssize_t(err);
-        }
-
-        size_t toWrite = audioBuffer.size;
-        memcpy(audioBuffer.i8, buffer, toWrite);
-        buffer = ((const char *) buffer) + toWrite;
-        userSize -= toWrite;
-        written += toWrite;
-
-        releaseBuffer(&audioBuffer);
-    }
-
-    if (written > 0) {
-        mFramesWritten += written / mFrameSize;
-    }
-    return written;
-}
-
-// -------------------------------------------------------------------------
-
-nsecs_t AudioTrack::processAudioBuffer()
-{
-    // Currently the AudioTrack thread is not created if there are no callbacks.
-    // Would it ever make sense to run the thread, even without callbacks?
-    // If so, then replace this by checks at each use for mCbf != NULL.
-    LOG_ALWAYS_FATAL_IF(mCblk == NULL);
-
-    mLock.lock();
-    if (mAwaitBoost) {
-        mAwaitBoost = false;
-        mLock.unlock();
-        static const int32_t kMaxTries = 5;
-        int32_t tryCounter = kMaxTries;
-        uint32_t pollUs = 10000;
-        do {
-            int policy = sched_getscheduler(0) & ~SCHED_RESET_ON_FORK;
-            if (policy == SCHED_FIFO || policy == SCHED_RR) {
-                break;
-            }
-            usleep(pollUs);
-            pollUs <<= 1;
-        } while (tryCounter-- > 0);
-        if (tryCounter < 0) {
-            ALOGE("did not receive expected priority boost on time");
-        }
-        // Run again immediately
-        return 0;
-    }
-
-    // Can only reference mCblk while locked
-    int32_t flags = android_atomic_and(
-        ~(CBLK_UNDERRUN | CBLK_LOOP_CYCLE | CBLK_LOOP_FINAL | CBLK_BUFFER_END), &mCblk->mFlags);
-
-    // Check for track invalidation
-    if (flags & CBLK_INVALID) {
-        // for offloaded tracks restoreTrack_l() will just update the sequence and clear
-        // AudioSystem cache. We should not exit here but after calling the callback so
-        // that the upper layers can recreate the track
-        if (!isOffloadedOrDirect_l() || (mSequence == mObservedSequence)) {
-            status_t status __unused = restoreTrack_l("processAudioBuffer");
-            // FIXME unused status
-            // after restoration, continue below to make sure that the loop and buffer events
-            // are notified because they have been cleared from mCblk->mFlags above.
-        }
-    }
-
-    bool waitStreamEnd = mState == STATE_STOPPING;
-    bool active = mState == STATE_ACTIVE;
-
-    // Manage underrun callback, must be done under lock to avoid race with releaseBuffer()
-    bool newUnderrun = false;
-    if (flags & CBLK_UNDERRUN) {
-#if 0
-        // Currently in shared buffer mode, when the server reaches the end of buffer,
-        // the track stays active in continuous underrun state.  It's up to the application
-        // to pause or stop the track, or set the position to a new offset within buffer.
-        // This was some experimental code to auto-pause on underrun.   Keeping it here
-        // in "if 0" so we can re-visit this if we add a real sequencer for shared memory content.
-        if (mTransfer == TRANSFER_SHARED) {
-            mState = STATE_PAUSED;
-            active = false;
-        }
-#endif
-        if (!mInUnderrun) {
-            mInUnderrun = true;
-            newUnderrun = true;
-        }
-    }
-
-    // Get current position of server
-    Modulo<uint32_t> position(updateAndGetPosition_l());
-
-    // Manage marker callback
-    bool markerReached = false;
-    Modulo<uint32_t> markerPosition(mMarkerPosition);
-    // uses 32 bit wraparound for comparison with position.
-    if (!mMarkerReached && markerPosition.value() > 0 && position >= markerPosition) {
-        mMarkerReached = markerReached = true;
-    }
-
-    // Determine number of new position callback(s) that will be needed, while locked
-    size_t newPosCount = 0;
-    Modulo<uint32_t> newPosition(mNewPosition);
-    uint32_t updatePeriod = mUpdatePeriod;
-    // FIXME fails for wraparound, need 64 bits
-    if (updatePeriod > 0 && position >= newPosition) {
-        newPosCount = ((position - newPosition).value() / updatePeriod) + 1;
-        mNewPosition += updatePeriod * newPosCount;
-    }
-
-    // Cache other fields that will be needed soon
-    uint32_t sampleRate = mSampleRate;
-    float speed = mPlaybackRate.mSpeed;
-    const uint32_t notificationFrames = mNotificationFramesAct;
-    if (mRefreshRemaining) {
-        mRefreshRemaining = false;
-        mRemainingFrames = notificationFrames;
-        mRetryOnPartialBuffer = false;
-    }
-    size_t misalignment = mProxy->getMisalignment();
-    uint32_t sequence = mSequence;
-    sp<AudioTrackClientProxy> proxy = mProxy;
-
-    // Determine the number of new loop callback(s) that will be needed, while locked.
-    int loopCountNotifications = 0;
-    uint32_t loopPeriod = 0; // time in frames for next EVENT_LOOP_END or EVENT_BUFFER_END
-
-    if (mLoopCount > 0) {
-        int loopCount;
-        size_t bufferPosition;
-        mStaticProxy->getBufferPositionAndLoopCount(&bufferPosition, &loopCount);
-        loopPeriod = ((loopCount > 0) ? mLoopEnd : mFrameCount) - bufferPosition;
-        loopCountNotifications = min(mLoopCountNotified - loopCount, kMaxLoopCountNotifications);
-        mLoopCountNotified = loopCount; // discard any excess notifications
-    } else if (mLoopCount < 0) {
-        // FIXME: We're not accurate with notification count and position with infinite looping
-        // since loopCount from server side will always return -1 (we could decrement it).
-        size_t bufferPosition = mStaticProxy->getBufferPosition();
-        loopCountNotifications = int((flags & (CBLK_LOOP_CYCLE | CBLK_LOOP_FINAL)) != 0);
-        loopPeriod = mLoopEnd - bufferPosition;
-    } else if (/* mLoopCount == 0 && */ mSharedBuffer != 0) {
-        size_t bufferPosition = mStaticProxy->getBufferPosition();
-        loopPeriod = mFrameCount - bufferPosition;
-    }
-
-    // These fields don't need to be cached, because they are assigned only by set():
-    //     mTransfer, mCbf, mUserData, mFormat, mFrameSize, mFlags
-    // mFlags is also assigned by createTrack_l(), but not the bit we care about.
-
-    mLock.unlock();
-
-    // get anchor time to account for callbacks.
-    const nsecs_t timeBeforeCallbacks = systemTime();
-
-    if (waitStreamEnd) {
-        // FIXME:  Instead of blocking in proxy->waitStreamEndDone(), Callback thread
-        // should wait on proxy futex and handle CBLK_STREAM_END_DONE within this function
-        // (and make sure we don't callback for more data while we're stopping).
-        // This helps with position, marker notifications, and track invalidation.
-        struct timespec timeout;
-        timeout.tv_sec = WAIT_STREAM_END_TIMEOUT_SEC;
-        timeout.tv_nsec = 0;
-
-        status_t status = proxy->waitStreamEndDone(&timeout);
-        switch (status) {
-        case NO_ERROR:
-        case DEAD_OBJECT:
-        case TIMED_OUT:
-            if (status != DEAD_OBJECT) {
-                // for DEAD_OBJECT, we do not send a EVENT_STREAM_END after stop();
-                // instead, the application should handle the EVENT_NEW_IAUDIOTRACK.
-                mCbf(EVENT_STREAM_END, mUserData, NULL);
-            }
-            {
-                AutoMutex lock(mLock);
-                // The previously assigned value of waitStreamEnd is no longer valid,
-                // since the mutex has been unlocked and either the callback handler
-                // or another thread could have re-started the AudioTrack during that time.
-                waitStreamEnd = mState == STATE_STOPPING;
-                if (waitStreamEnd) {
-                    mState = STATE_STOPPED;
-                    mReleased = 0;
-                }
-            }
-            if (waitStreamEnd && status != DEAD_OBJECT) {
-               return NS_INACTIVE;
-            }
-            break;
-        }
-        return 0;
-    }
-
-    // perform callbacks while unlocked
-    if (newUnderrun) {
-        mCbf(EVENT_UNDERRUN, mUserData, NULL);
-    }
-    while (loopCountNotifications > 0) {
-        mCbf(EVENT_LOOP_END, mUserData, NULL);
-        --loopCountNotifications;
-    }
-    if (flags & CBLK_BUFFER_END) {
-        mCbf(EVENT_BUFFER_END, mUserData, NULL);
-    }
-    if (markerReached) {
-        mCbf(EVENT_MARKER, mUserData, &markerPosition);
-    }
-    while (newPosCount > 0) {
-        size_t temp = newPosition.value(); // FIXME size_t != uint32_t
-        mCbf(EVENT_NEW_POS, mUserData, &temp);
-        newPosition += updatePeriod;
-        newPosCount--;
-    }
-
-    if (mObservedSequence != sequence) {
-        mObservedSequence = sequence;
-        mCbf(EVENT_NEW_IAUDIOTRACK, mUserData, NULL);
-        // for offloaded tracks, just wait for the upper layers to recreate the track
-        if (isOffloadedOrDirect()) {
-            return NS_INACTIVE;
-        }
-    }
-
-    // if inactive, then don't run me again until re-started
-    if (!active) {
-        return NS_INACTIVE;
-    }
-
-    // Compute the estimated time until the next timed event (position, markers, loops)
-    // FIXME only for non-compressed audio
-    uint32_t minFrames = ~0;
-    if (!markerReached && position < markerPosition) {
-        minFrames = (markerPosition - position).value();
-    }
-    if (loopPeriod > 0 && loopPeriod < minFrames) {
-        // loopPeriod is already adjusted for actual position.
-        minFrames = loopPeriod;
-    }
-    if (updatePeriod > 0) {
-        minFrames = min(minFrames, (newPosition - position).value());
-    }
-
-    // If > 0, poll periodically to recover from a stuck server.  A good value is 2.
-    static const uint32_t kPoll = 0;
-    if (kPoll > 0 && mTransfer == TRANSFER_CALLBACK && kPoll * notificationFrames < minFrames) {
-        minFrames = kPoll * notificationFrames;
-    }
-
-    // This "fudge factor" avoids soaking CPU, and compensates for late progress by server
-    static const nsecs_t kWaitPeriodNs = WAIT_PERIOD_MS * 1000000LL;
-    const nsecs_t timeAfterCallbacks = systemTime();
-
-    // Convert frame units to time units
-    nsecs_t ns = NS_WHENEVER;
-    if (minFrames != (uint32_t) ~0) {
-        ns = framesToNanoseconds(minFrames, sampleRate, speed) + kWaitPeriodNs;
-        ns -= (timeAfterCallbacks - timeBeforeCallbacks);  // account for callback time
-        // TODO: Should we warn if the callback time is too long?
-        if (ns < 0) ns = 0;
-    }
-
-    // If not supplying data by EVENT_MORE_DATA, then we're done
-    if (mTransfer != TRANSFER_CALLBACK) {
-        return ns;
-    }
-
-    // EVENT_MORE_DATA callback handling.
-    // Timing for linear pcm audio data formats can be derived directly from the
-    // buffer fill level.
-    // Timing for compressed data is not directly available from the buffer fill level,
-    // rather indirectly from waiting for blocking mode callbacks or waiting for obtain()
-    // to return a certain fill level.
-
-    struct timespec timeout;
-    const struct timespec *requested = &ClientProxy::kForever;
-    if (ns != NS_WHENEVER) {
-        timeout.tv_sec = ns / 1000000000LL;
-        timeout.tv_nsec = ns % 1000000000LL;
-        ALOGV("timeout %ld.%03d", timeout.tv_sec, (int) timeout.tv_nsec / 1000000);
-        requested = &timeout;
-    }
-
-    size_t writtenFrames = 0;
-    while (mRemainingFrames > 0) {
-
-        Buffer audioBuffer;
-        audioBuffer.frameCount = mRemainingFrames;
-        size_t nonContig;
-        status_t err = obtainBuffer(&audioBuffer, requested, NULL, &nonContig);
-        LOG_ALWAYS_FATAL_IF((err != NO_ERROR) != (audioBuffer.frameCount == 0),
-                "obtainBuffer() err=%d frameCount=%zu", err, audioBuffer.frameCount);
-        requested = &ClientProxy::kNonBlocking;
-        size_t avail = audioBuffer.frameCount + nonContig;
-        ALOGV("obtainBuffer(%u) returned %zu = %zu + %zu err %d",
-                mRemainingFrames, avail, audioBuffer.frameCount, nonContig, err);
-        if (err != NO_ERROR) {
-            if (err == TIMED_OUT || err == WOULD_BLOCK || err == -EINTR ||
-                    (isOffloaded() && (err == DEAD_OBJECT))) {
-                // FIXME bug 25195759
-                return 1000000;
-            }
-            ALOGE("Error %d obtaining an audio buffer, giving up.", err);
-            return NS_NEVER;
-        }
-
-        if (mRetryOnPartialBuffer && audio_has_proportional_frames(mFormat)) {
-            mRetryOnPartialBuffer = false;
-            if (avail < mRemainingFrames) {
-                if (ns > 0) { // account for obtain time
-                    const nsecs_t timeNow = systemTime();
-                    ns = max((nsecs_t)0, ns - (timeNow - timeAfterCallbacks));
-                }
-                nsecs_t myns = framesToNanoseconds(mRemainingFrames - avail, sampleRate, speed);
-                if (ns < 0 /* NS_WHENEVER */ || myns < ns) {
-                    ns = myns;
-                }
-                return ns;
-            }
-        }
-
-        size_t reqSize = audioBuffer.size;
-        mCbf(EVENT_MORE_DATA, mUserData, &audioBuffer);
-        size_t writtenSize = audioBuffer.size;
-
-        // Sanity check on returned size
-        if (ssize_t(writtenSize) < 0 || writtenSize > reqSize) {
-            ALOGE("EVENT_MORE_DATA requested %zu bytes but callback returned %zd bytes",
-                    reqSize, ssize_t(writtenSize));
-            return NS_NEVER;
-        }
-
-        if (writtenSize == 0) {
-            // The callback is done filling buffers
-            // Keep this thread going to handle timed events and
-            // still try to get more data in intervals of WAIT_PERIOD_MS
-            // but don't just loop and block the CPU, so wait
-
-            // mCbf(EVENT_MORE_DATA, ...) might either
-            // (1) Block until it can fill the buffer, returning 0 size on EOS.
-            // (2) Block until it can fill the buffer, returning 0 data (silence) on EOS.
-            // (3) Return 0 size when no data is available, does not wait for more data.
-            //
-            // (1) and (2) occurs with AudioPlayer/AwesomePlayer; (3) occurs with NuPlayer.
-            // We try to compute the wait time to avoid a tight sleep-wait cycle,
-            // especially for case (3).
-            //
-            // The decision to support (1) and (2) affect the sizing of mRemainingFrames
-            // and this loop; whereas for case (3) we could simply check once with the full
-            // buffer size and skip the loop entirely.
-
-            nsecs_t myns;
-            if (audio_has_proportional_frames(mFormat)) {
-                // time to wait based on buffer occupancy
-                const nsecs_t datans = mRemainingFrames <= avail ? 0 :
-                        framesToNanoseconds(mRemainingFrames - avail, sampleRate, speed);
-                // audio flinger thread buffer size (TODO: adjust for fast tracks)
-                // FIXME: use mAfFrameCountHAL instead of mAfFrameCount below for fast tracks.
-                const nsecs_t afns = framesToNanoseconds(mAfFrameCount, mAfSampleRate, speed);
-                // add a half the AudioFlinger buffer time to avoid soaking CPU if datans is 0.
-                myns = datans + (afns / 2);
-            } else {
-                // FIXME: This could ping quite a bit if the buffer isn't full.
-                // Note that when mState is stopping we waitStreamEnd, so it never gets here.
-                myns = kWaitPeriodNs;
-            }
-            if (ns > 0) { // account for obtain and callback time
-                const nsecs_t timeNow = systemTime();
-                ns = max((nsecs_t)0, ns - (timeNow - timeAfterCallbacks));
-            }
-            if (ns < 0 /* NS_WHENEVER */ || myns < ns) {
-                ns = myns;
-            }
-            return ns;
-        }
-
-        size_t releasedFrames = writtenSize / mFrameSize;
-        audioBuffer.frameCount = releasedFrames;
-        mRemainingFrames -= releasedFrames;
-        if (misalignment >= releasedFrames) {
-            misalignment -= releasedFrames;
-        } else {
-            misalignment = 0;
-        }
-
-        releaseBuffer(&audioBuffer);
-        writtenFrames += releasedFrames;
-
-        // FIXME here is where we would repeat EVENT_MORE_DATA again on same advanced buffer
-        // if callback doesn't like to accept the full chunk
-        if (writtenSize < reqSize) {
-            continue;
-        }
-
-        // There could be enough non-contiguous frames available to satisfy the remaining request
-        if (mRemainingFrames <= nonContig) {
-            continue;
-        }
-
-#if 0
-        // This heuristic tries to collapse a series of EVENT_MORE_DATA that would total to a
-        // sum <= notificationFrames.  It replaces that series by at most two EVENT_MORE_DATA
-        // that total to a sum == notificationFrames.
-        if (0 < misalignment && misalignment <= mRemainingFrames) {
-            mRemainingFrames = misalignment;
-            return ((double)mRemainingFrames * 1100000000) / ((double)sampleRate * speed);
-        }
-#endif
-
-    }
-    if (writtenFrames > 0) {
-        AutoMutex lock(mLock);
-        mFramesWritten += writtenFrames;
-    }
-    mRemainingFrames = notificationFrames;
-    mRetryOnPartialBuffer = true;
-
-    // A lot has transpired since ns was calculated, so run again immediately and re-calculate
-    return 0;
-}
-
-status_t AudioTrack::restoreTrack_l(const char *from)
-{
-    ALOGW("dead IAudioTrack, %s, creating a new one from %s()",
-          isOffloadedOrDirect_l() ? "Offloaded or Direct" : "PCM", from);
-    ++mSequence;
-
-    // refresh the audio configuration cache in this process to make sure we get new
-    // output parameters and new IAudioFlinger in createTrack_l()
-    AudioSystem::clearAudioConfigCache();
-
-    if (isOffloadedOrDirect_l() || mDoNotReconnect) {
-        // FIXME re-creation of offloaded and direct tracks is not yet implemented;
-        // reconsider enabling for linear PCM encodings when position can be preserved.
-        return DEAD_OBJECT;
-    }
-
-    // Save so we can return count since creation.
-    mUnderrunCountOffset = getUnderrunCount_l();
-
-    // save the old static buffer position
-    size_t bufferPosition = 0;
-    int loopCount = 0;
-    if (mStaticProxy != 0) {
-        mStaticProxy->getBufferPositionAndLoopCount(&bufferPosition, &loopCount);
-    }
-
-    mFlags = mOrigFlags;
-
-    // If a new IAudioTrack is successfully created, createTrack_l() will modify the
-    // following member variables: mAudioTrack, mCblkMemory and mCblk.
-    // It will also delete the strong references on previous IAudioTrack and IMemory.
-    // If a new IAudioTrack cannot be created, the previous (dead) instance will be left intact.
-    status_t result = createTrack_l();
-
-    if (result == NO_ERROR) {
-        // take the frames that will be lost by track recreation into account in saved position
-        // For streaming tracks, this is the amount we obtained from the user/client
-        // (not the number actually consumed at the server - those are already lost).
-        if (mStaticProxy == 0) {
-            mPosition = mReleased;
-        }
-        // Continue playback from last known position and restore loop.
-        if (mStaticProxy != 0) {
-            if (loopCount != 0) {
-                mStaticProxy->setBufferPositionAndLoop(bufferPosition,
-                        mLoopStart, mLoopEnd, loopCount);
-            } else {
-                mStaticProxy->setBufferPosition(bufferPosition);
-                if (bufferPosition == mFrameCount) {
-                    ALOGD("restoring track at end of static buffer");
-                }
-            }
-        }
-        if (mState == STATE_ACTIVE) {
-            result = mAudioTrack->start();
-            mFramesWrittenServerOffset = mFramesWritten; // server resets to zero so we offset
-        }
-    }
-    if (result != NO_ERROR) {
-        ALOGW("restoreTrack_l() failed status %d", result);
-        mState = STATE_STOPPED;
-        mReleased = 0;
-    }
-
-    return result;
-}
-
-Modulo<uint32_t> AudioTrack::updateAndGetPosition_l()
-{
-    // This is the sole place to read server consumed frames
-    Modulo<uint32_t> newServer(mProxy->getPosition());
-    const int32_t delta = (newServer - mServer).signedValue();
-    // TODO There is controversy about whether there can be "negative jitter" in server position.
-    //      This should be investigated further, and if possible, it should be addressed.
-    //      A more definite failure mode is infrequent polling by client.
-    //      One could call (void)getPosition_l() in releaseBuffer(),
-    //      so mReleased and mPosition are always lock-step as best possible.
-    //      That should ensure delta never goes negative for infrequent polling
-    //      unless the server has more than 2^31 frames in its buffer,
-    //      in which case the use of uint32_t for these counters has bigger issues.
-    ALOGE_IF(delta < 0,
-            "detected illegal retrograde motion by the server: mServer advanced by %d",
-            delta);
-    mServer = newServer;
-    if (delta > 0) { // avoid retrograde
-        mPosition += delta;
-    }
-    return mPosition;
-}
-
-bool AudioTrack::isSampleRateSpeedAllowed_l(uint32_t sampleRate, float speed) const
-{
-    // applicable for mixing tracks only (not offloaded or direct)
-    if (mStaticProxy != 0) {
-        return true; // static tracks do not have issues with buffer sizing.
-    }
-    const size_t minFrameCount =
-            calculateMinFrameCount(mAfLatency, mAfFrameCount, mAfSampleRate, sampleRate, speed
-                /*, 0 mNotificationsPerBufferReq*/);
-    ALOGV("isSampleRateSpeedAllowed_l mFrameCount %zu  minFrameCount %zu",
-            mFrameCount, minFrameCount);
-    return mFrameCount >= minFrameCount;
-}
-
-status_t AudioTrack::setParameters(const String8& keyValuePairs)
-{
-    AutoMutex lock(mLock);
-    return mAudioTrack->setParameters(keyValuePairs);
-}
-
-status_t AudioTrack::getTimestamp(ExtendedTimestamp *timestamp)
-{
-    if (timestamp == nullptr) {
-        return BAD_VALUE;
-    }
-    AutoMutex lock(mLock);
-    return getTimestamp_l(timestamp);
-}
-
-status_t AudioTrack::getTimestamp_l(ExtendedTimestamp *timestamp)
-{
-    if (mCblk->mFlags & CBLK_INVALID) {
-        const status_t status = restoreTrack_l("getTimestampExtended");
-        if (status != OK) {
-            // per getTimestamp() API doc in header, we return DEAD_OBJECT here,
-            // recommending that the track be recreated.
-            return DEAD_OBJECT;
-        }
-    }
-    // check for offloaded/direct here in case restoring somehow changed those flags.
-    if (isOffloadedOrDirect_l()) {
-        return INVALID_OPERATION; // not supported
-    }
-    status_t status = mProxy->getTimestamp(timestamp);
-    LOG_ALWAYS_FATAL_IF(status != OK, "status %d not allowed from proxy getTimestamp", status);
-    bool found = false;
-    timestamp->mPosition[ExtendedTimestamp::LOCATION_CLIENT] = mFramesWritten;
-    timestamp->mTimeNs[ExtendedTimestamp::LOCATION_CLIENT] = 0;
-    // server side frame offset in case AudioTrack has been restored.
-    for (int i = ExtendedTimestamp::LOCATION_SERVER;
-            i < ExtendedTimestamp::LOCATION_MAX; ++i) {
-        if (timestamp->mTimeNs[i] >= 0) {
-            // apply server offset (frames flushed is ignored
-            // so we don't report the jump when the flush occurs).
-            timestamp->mPosition[i] += mFramesWrittenServerOffset;
-            found = true;
-        }
-    }
-    return found ? OK : WOULD_BLOCK;
-}
-
-status_t AudioTrack::getTimestamp(AudioTimestamp& timestamp)
-{
-    AutoMutex lock(mLock);
-
-    bool previousTimestampValid = mPreviousTimestampValid;
-    // Set false here to cover all the error return cases.
-    mPreviousTimestampValid = false;
-
-    switch (mState) {
-    case STATE_ACTIVE:
-    case STATE_PAUSED:
-        break; // handle below
-    case STATE_FLUSHED:
-    case STATE_STOPPED:
-        return WOULD_BLOCK;
-    case STATE_STOPPING:
-    case STATE_PAUSED_STOPPING:
-        if (!isOffloaded_l()) {
-            return INVALID_OPERATION;
-        }
-        break; // offloaded tracks handled below
-    default:
-        LOG_ALWAYS_FATAL("Invalid mState in getTimestamp(): %d", mState);
-        break;
-    }
-
-    if (mCblk->mFlags & CBLK_INVALID) {
-        const status_t status = restoreTrack_l("getTimestamp");
-        if (status != OK) {
-            // per getTimestamp() API doc in header, we return DEAD_OBJECT here,
-            // recommending that the track be recreated.
-            return DEAD_OBJECT;
-        }
-    }
-
-    // The presented frame count must always lag behind the consumed frame count.
-    // To avoid a race, read the presented frames first.  This ensures that presented <= consumed.
-
-    status_t status;
-    if (isOffloadedOrDirect_l()) {
-        // use Binder to get timestamp
-        status = mAudioTrack->getTimestamp(timestamp);
-    } else {
-        // read timestamp from shared memory
-        ExtendedTimestamp ets;
-        status = mProxy->getTimestamp(&ets);
-        if (status == OK) {
-            ExtendedTimestamp::Location location;
-            status = ets.getBestTimestamp(&timestamp, &location);
-
-            if (status == OK) {
-                // It is possible that the best location has moved from the kernel to the server.
-                // In this case we adjust the position from the previous computed latency.
-                if (location == ExtendedTimestamp::LOCATION_SERVER) {
-                    ALOGW_IF(mPreviousLocation == ExtendedTimestamp::LOCATION_KERNEL,
-                            "getTimestamp() location moved from kernel to server");
-                    // check that the last kernel OK time info exists and the positions
-                    // are valid (if they predate the current track, the positions may
-                    // be zero or negative).
-                    const int64_t frames =
-                            (ets.mTimeNs[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK] < 0 ||
-                            ets.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK] < 0 ||
-                            ets.mPosition[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK] <= 0 ||
-                            ets.mPosition[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK] <= 0)
-                            ?
-                            int64_t((double)mAfLatency * mSampleRate * mPlaybackRate.mSpeed
-                                    / 1000)
-                            :
-                            (ets.mPosition[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK]
-                            - ets.mPosition[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK]);
-                    ALOGV("frame adjustment:%lld  timestamp:%s",
-                            (long long)frames, ets.toString().c_str());
-                    if (frames >= ets.mPosition[location]) {
-                        timestamp.mPosition = 0;
-                    } else {
-                        timestamp.mPosition = (uint32_t)(ets.mPosition[location] - frames);
-                    }
-                } else if (location == ExtendedTimestamp::LOCATION_KERNEL) {
-                    ALOGV_IF(mPreviousLocation == ExtendedTimestamp::LOCATION_SERVER,
-                            "getTimestamp() location moved from server to kernel");
-                }
-                mPreviousLocation = location;
-            } else {
-                // right after AudioTrack is started, one may not find a timestamp
-                ALOGV("getBestTimestamp did not find timestamp");
-            }
-        }
-        if (status == INVALID_OPERATION) {
-            status = WOULD_BLOCK;
-        }
-    }
-    if (status != NO_ERROR) {
-        ALOGV_IF(status != WOULD_BLOCK, "getTimestamp error:%#x", status);
-        return status;
-    }
-    if (isOffloadedOrDirect_l()) {
-        if (isOffloaded_l() && (mState == STATE_PAUSED || mState == STATE_PAUSED_STOPPING)) {
-            // use cached paused position in case another offloaded track is running.
-            timestamp.mPosition = mPausedPosition;
-            clock_gettime(CLOCK_MONOTONIC, &timestamp.mTime);
-            return NO_ERROR;
-        }
-
-        // Check whether a pending flush or stop has completed, as those commands may
-        // be asynchronous or return near finish or exhibit glitchy behavior.
-        //
-        // Originally this showed up as the first timestamp being a continuation of
-        // the previous song under gapless playback.
-        // However, we sometimes see zero timestamps, then a glitch of
-        // the previous song's position, and then correct timestamps afterwards.
-        if (mStartUs != 0 && mSampleRate != 0) {
-            static const int kTimeJitterUs = 100000; // 100 ms
-            static const int k1SecUs = 1000000;
-
-            const int64_t timeNow = getNowUs();
-
-            if (timeNow < mStartUs + k1SecUs) { // within first second of starting
-                const int64_t timestampTimeUs = convertTimespecToUs(timestamp.mTime);
-                if (timestampTimeUs < mStartUs) {
-                    return WOULD_BLOCK;  // stale timestamp time, occurs before start.
-                }
-                const int64_t deltaTimeUs = timestampTimeUs - mStartUs;
-                const int64_t deltaPositionByUs = (double)timestamp.mPosition * 1000000
-                        / ((double)mSampleRate * mPlaybackRate.mSpeed);
-
-                if (deltaPositionByUs > deltaTimeUs + kTimeJitterUs) {
-                    // Verify that the counter can't count faster than the sample rate
-                    // since the start time.  If greater, then that means we may have failed
-                    // to completely flush or stop the previous playing track.
-                    ALOGW_IF(!mTimestampStartupGlitchReported,
-                            "getTimestamp startup glitch detected"
-                            " deltaTimeUs(%lld) deltaPositionUs(%lld) tsmPosition(%u)",
-                            (long long)deltaTimeUs, (long long)deltaPositionByUs,
-                            timestamp.mPosition);
-                    mTimestampStartupGlitchReported = true;
-                    if (previousTimestampValid
-                            && mPreviousTimestamp.mPosition == 0 /* should be true if valid */) {
-                        timestamp = mPreviousTimestamp;
-                        mPreviousTimestampValid = true;
-                        return NO_ERROR;
-                    }
-                    return WOULD_BLOCK;
-                }
-                if (deltaPositionByUs != 0) {
-                    mStartUs = 0; // don't check again, we got valid nonzero position.
-                }
-            } else {
-                mStartUs = 0; // don't check again, start time expired.
-            }
-            mTimestampStartupGlitchReported = false;
-        }
-    } else {
-        // Update the mapping between local consumed (mPosition) and server consumed (mServer)
-        (void) updateAndGetPosition_l();
-        // Server consumed (mServer) and presented both use the same server time base,
-        // and server consumed is always >= presented.
-        // The delta between these represents the number of frames in the buffer pipeline.
-        // If this delta between these is greater than the client position, it means that
-        // actually presented is still stuck at the starting line (figuratively speaking),
-        // waiting for the first frame to go by.  So we can't report a valid timestamp yet.
-        // Note: We explicitly use non-Modulo comparison here - potential wrap issue when
-        // mPosition exceeds 32 bits.
-        // TODO Remove when timestamp is updated to contain pipeline status info.
-        const int32_t pipelineDepthInFrames = (mServer - timestamp.mPosition).signedValue();
-        if (pipelineDepthInFrames > 0 /* should be true, but we check anyways */
-                && (uint32_t)pipelineDepthInFrames > mPosition.value()) {
-            return INVALID_OPERATION;
-        }
-        // Convert timestamp position from server time base to client time base.
-        // TODO The following code should work OK now because timestamp.mPosition is 32-bit.
-        // But if we change it to 64-bit then this could fail.
-        // Use Modulo computation here.
-        timestamp.mPosition = (mPosition - mServer + timestamp.mPosition).value();
-        // Immediately after a call to getPosition_l(), mPosition and
-        // mServer both represent the same frame position.  mPosition is
-        // in client's point of view, and mServer is in server's point of
-        // view.  So the difference between them is the "fudge factor"
-        // between client and server views due to stop() and/or new
-        // IAudioTrack.  And timestamp.mPosition is initially in server's
-        // point of view, so we need to apply the same fudge factor to it.
-    }
-
-    // Prevent retrograde motion in timestamp.
-    // This is sometimes caused by erratic reports of the available space in the ALSA drivers.
-    if (status == NO_ERROR) {
-        if (previousTimestampValid) {
-#define TIME_TO_NANOS(time) ((int64_t)time.tv_sec * 1000000000 + time.tv_nsec)
-            const int64_t previousTimeNanos = TIME_TO_NANOS(mPreviousTimestamp.mTime);
-            const int64_t currentTimeNanos = TIME_TO_NANOS(timestamp.mTime);
-#undef TIME_TO_NANOS
-            if (currentTimeNanos < previousTimeNanos) {
-                ALOGW("retrograde timestamp time");
-                // FIXME Consider blocking this from propagating upwards.
-            }
-
-            // Looking at signed delta will work even when the timestamps
-            // are wrapping around.
-            int32_t deltaPosition = (Modulo<uint32_t>(timestamp.mPosition)
-                    - mPreviousTimestamp.mPosition).signedValue();
-            // position can bobble slightly as an artifact; this hides the bobble
-            static const int32_t MINIMUM_POSITION_DELTA = 8;
-            if (deltaPosition < 0) {
-                // Only report once per position instead of spamming the log.
-                if (!mRetrogradeMotionReported) {
-                    ALOGW("retrograde timestamp position corrected, %d = %u - %u",
-                            deltaPosition,
-                            timestamp.mPosition,
-                            mPreviousTimestamp.mPosition);
-                    mRetrogradeMotionReported = true;
-                }
-            } else {
-                mRetrogradeMotionReported = false;
-            }
-            if (deltaPosition < MINIMUM_POSITION_DELTA) {
-                timestamp = mPreviousTimestamp;  // Use last valid timestamp.
-            }
-        }
-        mPreviousTimestamp = timestamp;
-        mPreviousTimestampValid = true;
-    }
-
-    return status;
-}
-
-String8 AudioTrack::getParameters(const String8& keys)
-{
-    audio_io_handle_t output = getOutput();
-    if (output != AUDIO_IO_HANDLE_NONE) {
-        return AudioSystem::getParameters(output, keys);
-    } else {
-        return String8::empty();
-    }
-}
-
-bool AudioTrack::isOffloaded() const
-{
-    AutoMutex lock(mLock);
-    return isOffloaded_l();
-}
-
-bool AudioTrack::isDirect() const
-{
-    AutoMutex lock(mLock);
-    return isDirect_l();
-}
-
-bool AudioTrack::isOffloadedOrDirect() const
-{
-    AutoMutex lock(mLock);
-    return isOffloadedOrDirect_l();
-}
-
-
-status_t AudioTrack::dump(int fd, const Vector<String16>& args __unused) const
-{
-
-    const size_t SIZE = 256;
-    char buffer[SIZE];
-    String8 result;
-
-    result.append(" AudioTrack::dump\n");
-    snprintf(buffer, 255, "  stream type(%d), left - right volume(%f, %f)\n", mStreamType,
-            mVolume[AUDIO_INTERLEAVE_LEFT], mVolume[AUDIO_INTERLEAVE_RIGHT]);
-    result.append(buffer);
-    snprintf(buffer, 255, "  format(%d), channel count(%d), frame count(%zu)\n", mFormat,
-            mChannelCount, mFrameCount);
-    result.append(buffer);
-    snprintf(buffer, 255, "  sample rate(%u), speed(%f), status(%d)\n",
-            mSampleRate, mPlaybackRate.mSpeed, mStatus);
-    result.append(buffer);
-    snprintf(buffer, 255, "  state(%d), latency (%d)\n", mState, mLatency);
-    result.append(buffer);
-    ::write(fd, result.string(), result.size());
-    return NO_ERROR;
-}
-
-uint32_t AudioTrack::getUnderrunCount() const
-{
-    AutoMutex lock(mLock);
-    return getUnderrunCount_l();
-}
-
-uint32_t AudioTrack::getUnderrunCount_l() const
-{
-    return mProxy->getUnderrunCount() + mUnderrunCountOffset;
-}
-
-uint32_t AudioTrack::getUnderrunFrames() const
-{
-    AutoMutex lock(mLock);
-    return mProxy->getUnderrunFrames();
-}
-
-status_t AudioTrack::addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback)
-{
-    if (callback == 0) {
-        ALOGW("%s adding NULL callback!", __FUNCTION__);
-        return BAD_VALUE;
-    }
-    AutoMutex lock(mLock);
-    if (mDeviceCallback == callback) {
-        ALOGW("%s adding same callback!", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
-    status_t status = NO_ERROR;
-    if (mOutput != AUDIO_IO_HANDLE_NONE) {
-        if (mDeviceCallback != 0) {
-            ALOGW("%s callback already present!", __FUNCTION__);
-            AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mOutput);
-        }
-        status = AudioSystem::addAudioDeviceCallback(callback, mOutput);
-    }
-    mDeviceCallback = callback;
-    return status;
-}
-
-status_t AudioTrack::removeAudioDeviceCallback(
-        const sp<AudioSystem::AudioDeviceCallback>& callback)
-{
-    if (callback == 0) {
-        ALOGW("%s removing NULL callback!", __FUNCTION__);
-        return BAD_VALUE;
-    }
-    AutoMutex lock(mLock);
-    if (mDeviceCallback != callback) {
-        ALOGW("%s removing different callback!", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
-    if (mOutput != AUDIO_IO_HANDLE_NONE) {
-        AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mOutput);
-    }
-    mDeviceCallback = 0;
-    return NO_ERROR;
-}
-
-status_t AudioTrack::pendingDuration(int32_t *msec, ExtendedTimestamp::Location location)
-{
-    if (msec == nullptr ||
-            (location != ExtendedTimestamp::LOCATION_SERVER
-                    && location != ExtendedTimestamp::LOCATION_KERNEL)) {
-        return BAD_VALUE;
-    }
-    AutoMutex lock(mLock);
-    // inclusive of offloaded and direct tracks.
-    //
-    // It is possible, but not enabled, to allow duration computation for non-pcm
-    // audio_has_proportional_frames() formats because currently they have
-    // the drain rate equivalent to the pcm sample rate * framesize.
-    if (!isPurePcmData_l()) {
-        return INVALID_OPERATION;
-    }
-    ExtendedTimestamp ets;
-    if (getTimestamp_l(&ets) == OK
-            && ets.mTimeNs[location] > 0) {
-        int64_t diff = ets.mPosition[ExtendedTimestamp::LOCATION_CLIENT]
-                - ets.mPosition[location];
-        if (diff < 0) {
-            *msec = 0;
-        } else {
-            // ms is the playback time by frames
-            int64_t ms = (int64_t)((double)diff * 1000 /
-                    ((double)mSampleRate * mPlaybackRate.mSpeed));
-            // clockdiff is the timestamp age (negative)
-            int64_t clockdiff = (mState != STATE_ACTIVE) ? 0 :
-                    ets.mTimeNs[location]
-                    + ets.mTimebaseOffset[ExtendedTimestamp::TIMEBASE_MONOTONIC]
-                    - systemTime(SYSTEM_TIME_MONOTONIC);
-
-            //ALOGV("ms: %lld  clockdiff: %lld", (long long)ms, (long long)clockdiff);
-            static const int NANOS_PER_MILLIS = 1000000;
-            *msec = (int32_t)(ms + clockdiff / NANOS_PER_MILLIS);
-        }
-        return NO_ERROR;
-    }
-    if (location != ExtendedTimestamp::LOCATION_SERVER) {
-        return INVALID_OPERATION; // LOCATION_KERNEL is not available
-    }
-    // use server position directly (offloaded and direct arrive here)
-    updateAndGetPosition_l();
-    int32_t diff = (Modulo<uint32_t>(mFramesWritten) - mPosition).signedValue();
-    *msec = (diff <= 0) ? 0
-            : (int32_t)((double)diff * 1000 / ((double)mSampleRate * mPlaybackRate.mSpeed));
-    return NO_ERROR;
-}
-
-// =========================================================================
-
-void AudioTrack::DeathNotifier::binderDied(const wp<IBinder>& who __unused)
-{
-    sp<AudioTrack> audioTrack = mAudioTrack.promote();
-    if (audioTrack != 0) {
-        AutoMutex lock(audioTrack->mLock);
-        audioTrack->mProxy->binderDied();
-    }
-}
-
-// =========================================================================
-
-AudioTrack::AudioTrackThread::AudioTrackThread(AudioTrack& receiver, bool bCanCallJava)
-    : Thread(bCanCallJava), mReceiver(receiver), mPaused(true), mPausedInt(false), mPausedNs(0LL),
-      mIgnoreNextPausedInt(false)
-{
-}
-
-AudioTrack::AudioTrackThread::~AudioTrackThread()
-{
-}
-
-bool AudioTrack::AudioTrackThread::threadLoop()
-{
-    {
-        AutoMutex _l(mMyLock);
-        if (mPaused) {
-            mMyCond.wait(mMyLock);
-            // caller will check for exitPending()
-            return true;
-        }
-        if (mIgnoreNextPausedInt) {
-            mIgnoreNextPausedInt = false;
-            mPausedInt = false;
-        }
-        if (mPausedInt) {
-            if (mPausedNs > 0) {
-                (void) mMyCond.waitRelative(mMyLock, mPausedNs);
-            } else {
-                mMyCond.wait(mMyLock);
-            }
-            mPausedInt = false;
-            return true;
-        }
-    }
-    if (exitPending()) {
-        return false;
-    }
-    nsecs_t ns = mReceiver.processAudioBuffer();
-    switch (ns) {
-    case 0:
-        return true;
-    case NS_INACTIVE:
-        pauseInternal();
-        return true;
-    case NS_NEVER:
-        return false;
-    case NS_WHENEVER:
-        // Event driven: call wake() when callback notifications conditions change.
-        ns = INT64_MAX;
-        // fall through
-    default:
-        LOG_ALWAYS_FATAL_IF(ns < 0, "processAudioBuffer() returned %" PRId64, ns);
-        pauseInternal(ns);
-        return true;
-    }
-}
-
-void AudioTrack::AudioTrackThread::requestExit()
-{
-    // must be in this order to avoid a race condition
-    Thread::requestExit();
-    resume();
-}
-
-void AudioTrack::AudioTrackThread::pause()
-{
-    AutoMutex _l(mMyLock);
-    mPaused = true;
-}
-
-void AudioTrack::AudioTrackThread::resume()
-{
-    AutoMutex _l(mMyLock);
-    mIgnoreNextPausedInt = true;
-    if (mPaused || mPausedInt) {
-        mPaused = false;
-        mPausedInt = false;
-        mMyCond.signal();
-    }
-}
-
-void AudioTrack::AudioTrackThread::wake()
-{
-    AutoMutex _l(mMyLock);
-    if (!mPaused) {
-        // wake() might be called while servicing a callback - ignore the next
-        // pause time and call processAudioBuffer.
-        mIgnoreNextPausedInt = true;
-        if (mPausedInt && mPausedNs > 0) {
-            // audio track is active and internally paused with timeout.
-            mPausedInt = false;
-            mMyCond.signal();
-        }
-    }
-}
-
-void AudioTrack::AudioTrackThread::pauseInternal(nsecs_t ns)
-{
-    AutoMutex _l(mMyLock);
-    mPausedInt = true;
-    mPausedNs = ns;
-}
-
-} // namespace android
diff --git a/media/libmedia/AudioTrackShared.cpp b/media/libmedia/AudioTrackShared.cpp
deleted file mode 100644
index 846f8b8..0000000
--- a/media/libmedia/AudioTrackShared.cpp
+++ /dev/null
@@ -1,1108 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioTrackShared"
-//#define LOG_NDEBUG 0
-
-#include <private/media/AudioTrackShared.h>
-#include <utils/Log.h>
-
-#include <linux/futex.h>
-#include <sys/syscall.h>
-
-namespace android {
-
-// used to clamp a value to size_t.  TODO: move to another file.
-template <typename T>
-size_t clampToSize(T x) {
-    return sizeof(T) > sizeof(size_t) && x > (T) SIZE_MAX ? SIZE_MAX : x < 0 ? 0 : (size_t) x;
-}
-
-// incrementSequence is used to determine the next sequence value
-// for the loop and position sequence counters.  It should return
-// a value between "other" + 1 and "other" + INT32_MAX, the choice of
-// which needs to be the "least recently used" sequence value for "self".
-// In general, this means (new_self) returned is max(self, other) + 1.
-
-static uint32_t incrementSequence(uint32_t self, uint32_t other) {
-    int32_t diff = (int32_t) self - (int32_t) other;
-    if (diff >= 0 && diff < INT32_MAX) {
-        return self + 1; // we're already ahead of other.
-    }
-    return other + 1; // we're behind, so move just ahead of other.
-}
-
-audio_track_cblk_t::audio_track_cblk_t()
-    : mServer(0), mFutex(0), mMinimum(0)
-    , mVolumeLR(GAIN_MINIFLOAT_PACKED_UNITY), mSampleRate(0), mSendLevel(0)
-    , mBufferSizeInFrames(0)
-    , mFlags(0)
-{
-    memset(&u, 0, sizeof(u));
-}
-
-// ---------------------------------------------------------------------------
-
-Proxy::Proxy(audio_track_cblk_t* cblk, void *buffers, size_t frameCount, size_t frameSize,
-        bool isOut, bool clientInServer)
-    : mCblk(cblk), mBuffers(buffers), mFrameCount(frameCount), mFrameSize(frameSize),
-      mFrameCountP2(roundup(frameCount)), mIsOut(isOut), mClientInServer(clientInServer),
-      mIsShutdown(false), mUnreleased(0)
-{
-}
-
-// ---------------------------------------------------------------------------
-
-ClientProxy::ClientProxy(audio_track_cblk_t* cblk, void *buffers, size_t frameCount,
-        size_t frameSize, bool isOut, bool clientInServer)
-    : Proxy(cblk, buffers, frameCount, frameSize, isOut, clientInServer)
-    , mEpoch(0)
-    , mTimestampObserver(&cblk->mExtendedTimestampQueue)
-{
-    setBufferSizeInFrames(frameCount);
-}
-
-const struct timespec ClientProxy::kForever = {INT_MAX /*tv_sec*/, 0 /*tv_nsec*/};
-const struct timespec ClientProxy::kNonBlocking = {0 /*tv_sec*/, 0 /*tv_nsec*/};
-
-#define MEASURE_NS 10000000 // attempt to provide accurate timeouts if requested >= MEASURE_NS
-
-// To facilitate quicker recovery from server failure, this value limits the timeout per each futex
-// wait.  However it does not protect infinite timeouts.  If defined to be zero, there is no limit.
-// FIXME May not be compatible with audio tunneling requirements where timeout should be in the
-// order of minutes.
-#define MAX_SEC    5
-
-uint32_t ClientProxy::setBufferSizeInFrames(uint32_t size)
-{
-    // The minimum should be  greater than zero and less than the size
-    // at which underruns will occur.
-    const uint32_t minimum = 16; // based on AudioMixer::BLOCKSIZE
-    const uint32_t maximum = frameCount();
-    uint32_t clippedSize = size;
-    if (maximum < minimum) {
-        clippedSize = maximum;
-    } else if (clippedSize < minimum) {
-        clippedSize = minimum;
-    } else if (clippedSize > maximum) {
-        clippedSize = maximum;
-    }
-    // for server to read
-    android_atomic_release_store(clippedSize, (int32_t *)&mCblk->mBufferSizeInFrames);
-    // for client to read
-    mBufferSizeInFrames = clippedSize;
-    return clippedSize;
-}
-
-__attribute__((no_sanitize("integer")))
-status_t ClientProxy::obtainBuffer(Buffer* buffer, const struct timespec *requested,
-        struct timespec *elapsed)
-{
-    LOG_ALWAYS_FATAL_IF(buffer == NULL || buffer->mFrameCount == 0);
-    struct timespec total;          // total elapsed time spent waiting
-    total.tv_sec = 0;
-    total.tv_nsec = 0;
-    bool measure = elapsed != NULL; // whether to measure total elapsed time spent waiting
-
-    status_t status;
-    enum {
-        TIMEOUT_ZERO,       // requested == NULL || *requested == 0
-        TIMEOUT_INFINITE,   // *requested == infinity
-        TIMEOUT_FINITE,     // 0 < *requested < infinity
-        TIMEOUT_CONTINUE,   // additional chances after TIMEOUT_FINITE
-    } timeout;
-    if (requested == NULL) {
-        timeout = TIMEOUT_ZERO;
-    } else if (requested->tv_sec == 0 && requested->tv_nsec == 0) {
-        timeout = TIMEOUT_ZERO;
-    } else if (requested->tv_sec == INT_MAX) {
-        timeout = TIMEOUT_INFINITE;
-    } else {
-        timeout = TIMEOUT_FINITE;
-        if (requested->tv_sec > 0 || requested->tv_nsec >= MEASURE_NS) {
-            measure = true;
-        }
-    }
-    struct timespec before;
-    bool beforeIsValid = false;
-    audio_track_cblk_t* cblk = mCblk;
-    bool ignoreInitialPendingInterrupt = true;
-    // check for shared memory corruption
-    if (mIsShutdown) {
-        status = NO_INIT;
-        goto end;
-    }
-    for (;;) {
-        int32_t flags = android_atomic_and(~CBLK_INTERRUPT, &cblk->mFlags);
-        // check for track invalidation by server, or server death detection
-        if (flags & CBLK_INVALID) {
-            ALOGV("Track invalidated");
-            status = DEAD_OBJECT;
-            goto end;
-        }
-        if (flags & CBLK_DISABLED) {
-            ALOGV("Track disabled");
-            status = NOT_ENOUGH_DATA;
-            goto end;
-        }
-        // check for obtainBuffer interrupted by client
-        if (!ignoreInitialPendingInterrupt && (flags & CBLK_INTERRUPT)) {
-            ALOGV("obtainBuffer() interrupted by client");
-            status = -EINTR;
-            goto end;
-        }
-        ignoreInitialPendingInterrupt = false;
-        // compute number of frames available to write (AudioTrack) or read (AudioRecord)
-        int32_t front;
-        int32_t rear;
-        if (mIsOut) {
-            // The barrier following the read of mFront is probably redundant.
-            // We're about to perform a conditional branch based on 'filled',
-            // which will force the processor to observe the read of mFront
-            // prior to allowing data writes starting at mRaw.
-            // However, the processor may support speculative execution,
-            // and be unable to undo speculative writes into shared memory.
-            // The barrier will prevent such speculative execution.
-            front = android_atomic_acquire_load(&cblk->u.mStreaming.mFront);
-            rear = cblk->u.mStreaming.mRear;
-        } else {
-            // On the other hand, this barrier is required.
-            rear = android_atomic_acquire_load(&cblk->u.mStreaming.mRear);
-            front = cblk->u.mStreaming.mFront;
-        }
-        // write to rear, read from front
-        ssize_t filled = rear - front;
-        // pipe should not be overfull
-        if (!(0 <= filled && (size_t) filled <= mFrameCount)) {
-            if (mIsOut) {
-                ALOGE("Shared memory control block is corrupt (filled=%zd, mFrameCount=%zu); "
-                        "shutting down", filled, mFrameCount);
-                mIsShutdown = true;
-                status = NO_INIT;
-                goto end;
-            }
-            // for input, sync up on overrun
-            filled = 0;
-            cblk->u.mStreaming.mFront = rear;
-            (void) android_atomic_or(CBLK_OVERRUN, &cblk->mFlags);
-        }
-        // Don't allow filling pipe beyond the user settable size.
-        // The calculation for avail can go negative if the buffer size
-        // is suddenly dropped below the amount already in the buffer.
-        // So use a signed calculation to prevent a numeric overflow abort.
-        ssize_t adjustableSize = (ssize_t) getBufferSizeInFrames();
-        ssize_t avail =  (mIsOut) ? adjustableSize - filled : filled;
-        if (avail < 0) {
-            avail = 0;
-        } else if (avail > 0) {
-            // 'avail' may be non-contiguous, so return only the first contiguous chunk
-            size_t part1;
-            if (mIsOut) {
-                rear &= mFrameCountP2 - 1;
-                part1 = mFrameCountP2 - rear;
-            } else {
-                front &= mFrameCountP2 - 1;
-                part1 = mFrameCountP2 - front;
-            }
-            if (part1 > (size_t)avail) {
-                part1 = avail;
-            }
-            if (part1 > buffer->mFrameCount) {
-                part1 = buffer->mFrameCount;
-            }
-            buffer->mFrameCount = part1;
-            buffer->mRaw = part1 > 0 ?
-                    &((char *) mBuffers)[(mIsOut ? rear : front) * mFrameSize] : NULL;
-            buffer->mNonContig = avail - part1;
-            mUnreleased = part1;
-            status = NO_ERROR;
-            break;
-        }
-        struct timespec remaining;
-        const struct timespec *ts;
-        switch (timeout) {
-        case TIMEOUT_ZERO:
-            status = WOULD_BLOCK;
-            goto end;
-        case TIMEOUT_INFINITE:
-            ts = NULL;
-            break;
-        case TIMEOUT_FINITE:
-            timeout = TIMEOUT_CONTINUE;
-            if (MAX_SEC == 0) {
-                ts = requested;
-                break;
-            }
-            // fall through
-        case TIMEOUT_CONTINUE:
-            // FIXME we do not retry if requested < 10ms? needs documentation on this state machine
-            if (!measure || requested->tv_sec < total.tv_sec ||
-                    (requested->tv_sec == total.tv_sec && requested->tv_nsec <= total.tv_nsec)) {
-                status = TIMED_OUT;
-                goto end;
-            }
-            remaining.tv_sec = requested->tv_sec - total.tv_sec;
-            if ((remaining.tv_nsec = requested->tv_nsec - total.tv_nsec) < 0) {
-                remaining.tv_nsec += 1000000000;
-                remaining.tv_sec++;
-            }
-            if (0 < MAX_SEC && MAX_SEC < remaining.tv_sec) {
-                remaining.tv_sec = MAX_SEC;
-                remaining.tv_nsec = 0;
-            }
-            ts = &remaining;
-            break;
-        default:
-            LOG_ALWAYS_FATAL("obtainBuffer() timeout=%d", timeout);
-            ts = NULL;
-            break;
-        }
-        int32_t old = android_atomic_and(~CBLK_FUTEX_WAKE, &cblk->mFutex);
-        if (!(old & CBLK_FUTEX_WAKE)) {
-            if (measure && !beforeIsValid) {
-                clock_gettime(CLOCK_MONOTONIC, &before);
-                beforeIsValid = true;
-            }
-            errno = 0;
-            (void) syscall(__NR_futex, &cblk->mFutex,
-                    mClientInServer ? FUTEX_WAIT_PRIVATE : FUTEX_WAIT, old & ~CBLK_FUTEX_WAKE, ts);
-            status_t error = errno; // clock_gettime can affect errno
-            // update total elapsed time spent waiting
-            if (measure) {
-                struct timespec after;
-                clock_gettime(CLOCK_MONOTONIC, &after);
-                total.tv_sec += after.tv_sec - before.tv_sec;
-                long deltaNs = after.tv_nsec - before.tv_nsec;
-                if (deltaNs < 0) {
-                    deltaNs += 1000000000;
-                    total.tv_sec--;
-                }
-                if ((total.tv_nsec += deltaNs) >= 1000000000) {
-                    total.tv_nsec -= 1000000000;
-                    total.tv_sec++;
-                }
-                before = after;
-                beforeIsValid = true;
-            }
-            switch (error) {
-            case 0:            // normal wakeup by server, or by binderDied()
-            case EWOULDBLOCK:  // benign race condition with server
-            case EINTR:        // wait was interrupted by signal or other spurious wakeup
-            case ETIMEDOUT:    // time-out expired
-                // FIXME these error/non-0 status are being dropped
-                break;
-            default:
-                status = error;
-                ALOGE("%s unexpected error %s", __func__, strerror(status));
-                goto end;
-            }
-        }
-    }
-
-end:
-    if (status != NO_ERROR) {
-        buffer->mFrameCount = 0;
-        buffer->mRaw = NULL;
-        buffer->mNonContig = 0;
-        mUnreleased = 0;
-    }
-    if (elapsed != NULL) {
-        *elapsed = total;
-    }
-    if (requested == NULL) {
-        requested = &kNonBlocking;
-    }
-    if (measure) {
-        ALOGV("requested %ld.%03ld elapsed %ld.%03ld",
-              requested->tv_sec, requested->tv_nsec / 1000000,
-              total.tv_sec, total.tv_nsec / 1000000);
-    }
-    return status;
-}
-
-__attribute__((no_sanitize("integer")))
-void ClientProxy::releaseBuffer(Buffer* buffer)
-{
-    LOG_ALWAYS_FATAL_IF(buffer == NULL);
-    size_t stepCount = buffer->mFrameCount;
-    if (stepCount == 0 || mIsShutdown) {
-        // prevent accidental re-use of buffer
-        buffer->mFrameCount = 0;
-        buffer->mRaw = NULL;
-        buffer->mNonContig = 0;
-        return;
-    }
-    LOG_ALWAYS_FATAL_IF(!(stepCount <= mUnreleased && mUnreleased <= mFrameCount));
-    mUnreleased -= stepCount;
-    audio_track_cblk_t* cblk = mCblk;
-    // Both of these barriers are required
-    if (mIsOut) {
-        int32_t rear = cblk->u.mStreaming.mRear;
-        android_atomic_release_store(stepCount + rear, &cblk->u.mStreaming.mRear);
-    } else {
-        int32_t front = cblk->u.mStreaming.mFront;
-        android_atomic_release_store(stepCount + front, &cblk->u.mStreaming.mFront);
-    }
-}
-
-void ClientProxy::binderDied()
-{
-    audio_track_cblk_t* cblk = mCblk;
-    if (!(android_atomic_or(CBLK_INVALID, &cblk->mFlags) & CBLK_INVALID)) {
-        android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
-        // it seems that a FUTEX_WAKE_PRIVATE will not wake a FUTEX_WAIT, even within same process
-        (void) syscall(__NR_futex, &cblk->mFutex, mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE,
-                1);
-    }
-}
-
-void ClientProxy::interrupt()
-{
-    audio_track_cblk_t* cblk = mCblk;
-    if (!(android_atomic_or(CBLK_INTERRUPT, &cblk->mFlags) & CBLK_INTERRUPT)) {
-        android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
-        (void) syscall(__NR_futex, &cblk->mFutex, mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE,
-                1);
-    }
-}
-
-__attribute__((no_sanitize("integer")))
-size_t ClientProxy::getMisalignment()
-{
-    audio_track_cblk_t* cblk = mCblk;
-    return (mFrameCountP2 - (mIsOut ? cblk->u.mStreaming.mRear : cblk->u.mStreaming.mFront)) &
-            (mFrameCountP2 - 1);
-}
-
-// ---------------------------------------------------------------------------
-
-void AudioTrackClientProxy::flush()
-{
-    // This works for mFrameCountP2 <= 2^30
-    size_t increment = mFrameCountP2 << 1;
-    size_t mask = increment - 1;
-    audio_track_cblk_t* cblk = mCblk;
-    // mFlush is 32 bits concatenated as [ flush_counter ] [ newfront_offset ]
-    // Should newFlush = cblk->u.mStreaming.mRear?  Only problem is
-    // if you want to flush twice to the same rear location after a 32 bit wrap.
-    int32_t newFlush = (cblk->u.mStreaming.mRear & mask) |
-                        ((cblk->u.mStreaming.mFlush & ~mask) + increment);
-    android_atomic_release_store(newFlush, &cblk->u.mStreaming.mFlush);
-}
-
-bool AudioTrackClientProxy::clearStreamEndDone() {
-    return (android_atomic_and(~CBLK_STREAM_END_DONE, &mCblk->mFlags) & CBLK_STREAM_END_DONE) != 0;
-}
-
-bool AudioTrackClientProxy::getStreamEndDone() const {
-    return (mCblk->mFlags & CBLK_STREAM_END_DONE) != 0;
-}
-
-status_t AudioTrackClientProxy::waitStreamEndDone(const struct timespec *requested)
-{
-    struct timespec total;          // total elapsed time spent waiting
-    total.tv_sec = 0;
-    total.tv_nsec = 0;
-    audio_track_cblk_t* cblk = mCblk;
-    status_t status;
-    enum {
-        TIMEOUT_ZERO,       // requested == NULL || *requested == 0
-        TIMEOUT_INFINITE,   // *requested == infinity
-        TIMEOUT_FINITE,     // 0 < *requested < infinity
-        TIMEOUT_CONTINUE,   // additional chances after TIMEOUT_FINITE
-    } timeout;
-    if (requested == NULL) {
-        timeout = TIMEOUT_ZERO;
-    } else if (requested->tv_sec == 0 && requested->tv_nsec == 0) {
-        timeout = TIMEOUT_ZERO;
-    } else if (requested->tv_sec == INT_MAX) {
-        timeout = TIMEOUT_INFINITE;
-    } else {
-        timeout = TIMEOUT_FINITE;
-    }
-    for (;;) {
-        int32_t flags = android_atomic_and(~(CBLK_INTERRUPT|CBLK_STREAM_END_DONE), &cblk->mFlags);
-        // check for track invalidation by server, or server death detection
-        if (flags & CBLK_INVALID) {
-            ALOGV("Track invalidated");
-            status = DEAD_OBJECT;
-            goto end;
-        }
-        // a track is not supposed to underrun at this stage but consider it done
-        if (flags & (CBLK_STREAM_END_DONE | CBLK_DISABLED)) {
-            ALOGV("stream end received");
-            status = NO_ERROR;
-            goto end;
-        }
-        // check for obtainBuffer interrupted by client
-        if (flags & CBLK_INTERRUPT) {
-            ALOGV("waitStreamEndDone() interrupted by client");
-            status = -EINTR;
-            goto end;
-        }
-        struct timespec remaining;
-        const struct timespec *ts;
-        switch (timeout) {
-        case TIMEOUT_ZERO:
-            status = WOULD_BLOCK;
-            goto end;
-        case TIMEOUT_INFINITE:
-            ts = NULL;
-            break;
-        case TIMEOUT_FINITE:
-            timeout = TIMEOUT_CONTINUE;
-            if (MAX_SEC == 0) {
-                ts = requested;
-                break;
-            }
-            // fall through
-        case TIMEOUT_CONTINUE:
-            // FIXME we do not retry if requested < 10ms? needs documentation on this state machine
-            if (requested->tv_sec < total.tv_sec ||
-                    (requested->tv_sec == total.tv_sec && requested->tv_nsec <= total.tv_nsec)) {
-                status = TIMED_OUT;
-                goto end;
-            }
-            remaining.tv_sec = requested->tv_sec - total.tv_sec;
-            if ((remaining.tv_nsec = requested->tv_nsec - total.tv_nsec) < 0) {
-                remaining.tv_nsec += 1000000000;
-                remaining.tv_sec++;
-            }
-            if (0 < MAX_SEC && MAX_SEC < remaining.tv_sec) {
-                remaining.tv_sec = MAX_SEC;
-                remaining.tv_nsec = 0;
-            }
-            ts = &remaining;
-            break;
-        default:
-            LOG_ALWAYS_FATAL("waitStreamEndDone() timeout=%d", timeout);
-            ts = NULL;
-            break;
-        }
-        int32_t old = android_atomic_and(~CBLK_FUTEX_WAKE, &cblk->mFutex);
-        if (!(old & CBLK_FUTEX_WAKE)) {
-            errno = 0;
-            (void) syscall(__NR_futex, &cblk->mFutex,
-                    mClientInServer ? FUTEX_WAIT_PRIVATE : FUTEX_WAIT, old & ~CBLK_FUTEX_WAKE, ts);
-            switch (errno) {
-            case 0:            // normal wakeup by server, or by binderDied()
-            case EWOULDBLOCK:  // benign race condition with server
-            case EINTR:        // wait was interrupted by signal or other spurious wakeup
-            case ETIMEDOUT:    // time-out expired
-                break;
-            default:
-                status = errno;
-                ALOGE("%s unexpected error %s", __func__, strerror(status));
-                goto end;
-            }
-        }
-    }
-
-end:
-    if (requested == NULL) {
-        requested = &kNonBlocking;
-    }
-    return status;
-}
-
-// ---------------------------------------------------------------------------
-
-StaticAudioTrackClientProxy::StaticAudioTrackClientProxy(audio_track_cblk_t* cblk, void *buffers,
-        size_t frameCount, size_t frameSize)
-    : AudioTrackClientProxy(cblk, buffers, frameCount, frameSize),
-      mMutator(&cblk->u.mStatic.mSingleStateQueue),
-      mPosLoopObserver(&cblk->u.mStatic.mPosLoopQueue)
-{
-    memset(&mState, 0, sizeof(mState));
-    memset(&mPosLoop, 0, sizeof(mPosLoop));
-}
-
-void StaticAudioTrackClientProxy::flush()
-{
-    LOG_ALWAYS_FATAL("static flush");
-}
-
-void StaticAudioTrackClientProxy::setLoop(size_t loopStart, size_t loopEnd, int loopCount)
-{
-    // This can only happen on a 64-bit client
-    if (loopStart > UINT32_MAX || loopEnd > UINT32_MAX) {
-        // FIXME Should return an error status
-        return;
-    }
-    mState.mLoopStart = (uint32_t) loopStart;
-    mState.mLoopEnd = (uint32_t) loopEnd;
-    mState.mLoopCount = loopCount;
-    mState.mLoopSequence = incrementSequence(mState.mLoopSequence, mState.mPositionSequence);
-    // set patch-up variables until the mState is acknowledged by the ServerProxy.
-    // observed buffer position and loop count will freeze until then to give the
-    // illusion of a synchronous change.
-    getBufferPositionAndLoopCount(NULL, NULL);
-    // preserve behavior to restart at mState.mLoopStart if position exceeds mState.mLoopEnd.
-    if (mState.mLoopCount != 0 && mPosLoop.mBufferPosition >= mState.mLoopEnd) {
-        mPosLoop.mBufferPosition = mState.mLoopStart;
-    }
-    mPosLoop.mLoopCount = mState.mLoopCount;
-    (void) mMutator.push(mState);
-}
-
-void StaticAudioTrackClientProxy::setBufferPosition(size_t position)
-{
-    // This can only happen on a 64-bit client
-    if (position > UINT32_MAX) {
-        // FIXME Should return an error status
-        return;
-    }
-    mState.mPosition = (uint32_t) position;
-    mState.mPositionSequence = incrementSequence(mState.mPositionSequence, mState.mLoopSequence);
-    // set patch-up variables until the mState is acknowledged by the ServerProxy.
-    // observed buffer position and loop count will freeze until then to give the
-    // illusion of a synchronous change.
-    if (mState.mLoopCount > 0) {  // only check if loop count is changing
-        getBufferPositionAndLoopCount(NULL, NULL); // get last position
-    }
-    mPosLoop.mBufferPosition = position;
-    if (position >= mState.mLoopEnd) {
-        // no ongoing loop is possible if position is greater than loopEnd.
-        mPosLoop.mLoopCount = 0;
-    }
-    (void) mMutator.push(mState);
-}
-
-void StaticAudioTrackClientProxy::setBufferPositionAndLoop(size_t position, size_t loopStart,
-        size_t loopEnd, int loopCount)
-{
-    setLoop(loopStart, loopEnd, loopCount);
-    setBufferPosition(position);
-}
-
-size_t StaticAudioTrackClientProxy::getBufferPosition()
-{
-    getBufferPositionAndLoopCount(NULL, NULL);
-    return mPosLoop.mBufferPosition;
-}
-
-void StaticAudioTrackClientProxy::getBufferPositionAndLoopCount(
-        size_t *position, int *loopCount)
-{
-    if (mMutator.ack() == StaticAudioTrackSingleStateQueue::SSQ_DONE) {
-         if (mPosLoopObserver.poll(mPosLoop)) {
-             ; // a valid mPosLoop should be available if ackDone is true.
-         }
-    }
-    if (position != NULL) {
-        *position = mPosLoop.mBufferPosition;
-    }
-    if (loopCount != NULL) {
-        *loopCount = mPosLoop.mLoopCount;
-    }
-}
-
-// ---------------------------------------------------------------------------
-
-ServerProxy::ServerProxy(audio_track_cblk_t* cblk, void *buffers, size_t frameCount,
-        size_t frameSize, bool isOut, bool clientInServer)
-    : Proxy(cblk, buffers, frameCount, frameSize, isOut, clientInServer),
-      mAvailToClient(0), mFlush(0), mReleased(0), mFlushed(0)
-    , mTimestampMutator(&cblk->mExtendedTimestampQueue)
-{
-    cblk->mBufferSizeInFrames = frameCount;
-}
-
-__attribute__((no_sanitize("integer")))
-void ServerProxy::flushBufferIfNeeded()
-{
-    audio_track_cblk_t* cblk = mCblk;
-    // The acquire_load is not really required. But since the write is a release_store in the
-    // client, using acquire_load here makes it easier for people to maintain the code,
-    // and the logic for communicating ipc variables seems somewhat standard,
-    // and there really isn't much penalty for 4 or 8 byte atomics.
-    int32_t flush = android_atomic_acquire_load(&cblk->u.mStreaming.mFlush);
-    if (flush != mFlush) {
-        ALOGV("ServerProxy::flushBufferIfNeeded() mStreaming.mFlush = 0x%x, mFlush = 0x%0x",
-                flush, mFlush);
-        int32_t rear = android_atomic_acquire_load(&cblk->u.mStreaming.mRear);
-        int32_t front = cblk->u.mStreaming.mFront;
-
-        // effectively obtain then release whatever is in the buffer
-        const size_t overflowBit = mFrameCountP2 << 1;
-        const size_t mask = overflowBit - 1;
-        int32_t newFront = (front & ~mask) | (flush & mask);
-        ssize_t filled = rear - newFront;
-        if (filled >= (ssize_t)overflowBit) {
-            // front and rear offsets span the overflow bit of the p2 mask
-            // so rebasing newFront on the front offset is off by the overflow bit.
-            // adjust newFront to match rear offset.
-            ALOGV("flush wrap: filled %zx >= overflowBit %zx", filled, overflowBit);
-            newFront += overflowBit;
-            filled -= overflowBit;
-        }
-        // Rather than shutting down on a corrupt flush, just treat it as a full flush
-        if (!(0 <= filled && (size_t) filled <= mFrameCount)) {
-            ALOGE("mFlush %#x -> %#x, front %#x, rear %#x, mask %#x, newFront %#x, "
-                    "filled %zd=%#x",
-                    mFlush, flush, front, rear,
-                    (unsigned)mask, newFront, filled, (unsigned)filled);
-            newFront = rear;
-        }
-        mFlush = flush;
-        android_atomic_release_store(newFront, &cblk->u.mStreaming.mFront);
-        // There is no danger from a false positive, so err on the side of caution
-        if (true /*front != newFront*/) {
-            int32_t old = android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
-            if (!(old & CBLK_FUTEX_WAKE)) {
-                (void) syscall(__NR_futex, &cblk->mFutex,
-                        mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE, 1);
-            }
-        }
-        mFlushed += (newFront - front) & mask;
-    }
-}
-
-__attribute__((no_sanitize("integer")))
-status_t ServerProxy::obtainBuffer(Buffer* buffer, bool ackFlush)
-{
-    LOG_ALWAYS_FATAL_IF(buffer == NULL || buffer->mFrameCount == 0);
-    if (mIsShutdown) {
-        goto no_init;
-    }
-    {
-    audio_track_cblk_t* cblk = mCblk;
-    // compute number of frames available to write (AudioTrack) or read (AudioRecord),
-    // or use previous cached value from framesReady(), with added barrier if it omits.
-    int32_t front;
-    int32_t rear;
-    // See notes on barriers at ClientProxy::obtainBuffer()
-    if (mIsOut) {
-        flushBufferIfNeeded(); // might modify mFront
-        rear = android_atomic_acquire_load(&cblk->u.mStreaming.mRear);
-        front = cblk->u.mStreaming.mFront;
-    } else {
-        front = android_atomic_acquire_load(&cblk->u.mStreaming.mFront);
-        rear = cblk->u.mStreaming.mRear;
-    }
-    ssize_t filled = rear - front;
-    // pipe should not already be overfull
-    if (!(0 <= filled && (size_t) filled <= mFrameCount)) {
-        ALOGE("Shared memory control block is corrupt (filled=%zd); shutting down", filled);
-        mIsShutdown = true;
-    }
-    if (mIsShutdown) {
-        goto no_init;
-    }
-    // don't allow filling pipe beyond the nominal size
-    size_t availToServer;
-    if (mIsOut) {
-        availToServer = filled;
-        mAvailToClient = mFrameCount - filled;
-    } else {
-        availToServer = mFrameCount - filled;
-        mAvailToClient = filled;
-    }
-    // 'availToServer' may be non-contiguous, so return only the first contiguous chunk
-    size_t part1;
-    if (mIsOut) {
-        front &= mFrameCountP2 - 1;
-        part1 = mFrameCountP2 - front;
-    } else {
-        rear &= mFrameCountP2 - 1;
-        part1 = mFrameCountP2 - rear;
-    }
-    if (part1 > availToServer) {
-        part1 = availToServer;
-    }
-    size_t ask = buffer->mFrameCount;
-    if (part1 > ask) {
-        part1 = ask;
-    }
-    // is assignment redundant in some cases?
-    buffer->mFrameCount = part1;
-    buffer->mRaw = part1 > 0 ?
-            &((char *) mBuffers)[(mIsOut ? front : rear) * mFrameSize] : NULL;
-    buffer->mNonContig = availToServer - part1;
-    // After flush(), allow releaseBuffer() on a previously obtained buffer;
-    // see "Acknowledge any pending flush()" in audioflinger/Tracks.cpp.
-    if (!ackFlush) {
-        mUnreleased = part1;
-    }
-    return part1 > 0 ? NO_ERROR : WOULD_BLOCK;
-    }
-no_init:
-    buffer->mFrameCount = 0;
-    buffer->mRaw = NULL;
-    buffer->mNonContig = 0;
-    mUnreleased = 0;
-    return NO_INIT;
-}
-
-__attribute__((no_sanitize("integer")))
-void ServerProxy::releaseBuffer(Buffer* buffer)
-{
-    LOG_ALWAYS_FATAL_IF(buffer == NULL);
-    size_t stepCount = buffer->mFrameCount;
-    if (stepCount == 0 || mIsShutdown) {
-        // prevent accidental re-use of buffer
-        buffer->mFrameCount = 0;
-        buffer->mRaw = NULL;
-        buffer->mNonContig = 0;
-        return;
-    }
-    LOG_ALWAYS_FATAL_IF(!(stepCount <= mUnreleased && mUnreleased <= mFrameCount));
-    mUnreleased -= stepCount;
-    audio_track_cblk_t* cblk = mCblk;
-    if (mIsOut) {
-        int32_t front = cblk->u.mStreaming.mFront;
-        android_atomic_release_store(stepCount + front, &cblk->u.mStreaming.mFront);
-    } else {
-        int32_t rear = cblk->u.mStreaming.mRear;
-        android_atomic_release_store(stepCount + rear, &cblk->u.mStreaming.mRear);
-    }
-
-    cblk->mServer += stepCount;
-    mReleased += stepCount;
-
-    size_t half = mFrameCount / 2;
-    if (half == 0) {
-        half = 1;
-    }
-    size_t minimum = (size_t) cblk->mMinimum;
-    if (minimum == 0) {
-        minimum = mIsOut ? half : 1;
-    } else if (minimum > half) {
-        minimum = half;
-    }
-    // FIXME AudioRecord wakeup needs to be optimized; it currently wakes up client every time
-    if (!mIsOut || (mAvailToClient + stepCount >= minimum)) {
-        ALOGV("mAvailToClient=%zu stepCount=%zu minimum=%zu", mAvailToClient, stepCount, minimum);
-        int32_t old = android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
-        if (!(old & CBLK_FUTEX_WAKE)) {
-            (void) syscall(__NR_futex, &cblk->mFutex,
-                    mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE, 1);
-        }
-    }
-
-    buffer->mFrameCount = 0;
-    buffer->mRaw = NULL;
-    buffer->mNonContig = 0;
-}
-
-// ---------------------------------------------------------------------------
-
-__attribute__((no_sanitize("integer")))
-size_t AudioTrackServerProxy::framesReady()
-{
-    LOG_ALWAYS_FATAL_IF(!mIsOut);
-
-    if (mIsShutdown) {
-        return 0;
-    }
-    audio_track_cblk_t* cblk = mCblk;
-
-    int32_t flush = cblk->u.mStreaming.mFlush;
-    if (flush != mFlush) {
-        // FIXME should return an accurate value, but over-estimate is better than under-estimate
-        return mFrameCount;
-    }
-    // the acquire might not be necessary since not doing a subsequent read
-    int32_t rear = android_atomic_acquire_load(&cblk->u.mStreaming.mRear);
-    ssize_t filled = rear - cblk->u.mStreaming.mFront;
-    // pipe should not already be overfull
-    if (!(0 <= filled && (size_t) filled <= mFrameCount)) {
-        ALOGE("Shared memory control block is corrupt (filled=%zd); shutting down", filled);
-        mIsShutdown = true;
-        return 0;
-    }
-    //  cache this value for later use by obtainBuffer(), with added barrier
-    //  and racy if called by normal mixer thread
-    // ignores flush(), so framesReady() may report a larger mFrameCount than obtainBuffer()
-    return filled;
-}
-
-bool  AudioTrackServerProxy::setStreamEndDone() {
-    audio_track_cblk_t* cblk = mCblk;
-    bool old =
-            (android_atomic_or(CBLK_STREAM_END_DONE, &cblk->mFlags) & CBLK_STREAM_END_DONE) != 0;
-    if (!old) {
-        (void) syscall(__NR_futex, &cblk->mFutex, mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE,
-                1);
-    }
-    return old;
-}
-
-void AudioTrackServerProxy::tallyUnderrunFrames(uint32_t frameCount)
-{
-    audio_track_cblk_t* cblk = mCblk;
-    if (frameCount > 0) {
-        cblk->u.mStreaming.mUnderrunFrames += frameCount;
-
-        if (!mUnderrunning) { // start of underrun?
-            mUnderrunCount++;
-            cblk->u.mStreaming.mUnderrunCount = mUnderrunCount;
-            mUnderrunning = true;
-            ALOGV("tallyUnderrunFrames(%3u) at uf = %u, bump mUnderrunCount = %u",
-                frameCount, cblk->u.mStreaming.mUnderrunFrames, mUnderrunCount);
-        }
-
-        // FIXME also wake futex so that underrun is noticed more quickly
-        (void) android_atomic_or(CBLK_UNDERRUN, &cblk->mFlags);
-    } else {
-        ALOGV_IF(mUnderrunning,
-            "tallyUnderrunFrames(%3u) at uf = %u, underrun finished",
-            frameCount, cblk->u.mStreaming.mUnderrunFrames);
-        mUnderrunning = false; // so we can detect the next edge
-    }
-}
-
-AudioPlaybackRate AudioTrackServerProxy::getPlaybackRate()
-{   // do not call from multiple threads without holding lock
-    mPlaybackRateObserver.poll(mPlaybackRate);
-    return mPlaybackRate;
-}
-
-// ---------------------------------------------------------------------------
-
-StaticAudioTrackServerProxy::StaticAudioTrackServerProxy(audio_track_cblk_t* cblk, void *buffers,
-        size_t frameCount, size_t frameSize)
-    : AudioTrackServerProxy(cblk, buffers, frameCount, frameSize),
-      mObserver(&cblk->u.mStatic.mSingleStateQueue),
-      mPosLoopMutator(&cblk->u.mStatic.mPosLoopQueue),
-      mFramesReadySafe(frameCount), mFramesReady(frameCount),
-      mFramesReadyIsCalledByMultipleThreads(false)
-{
-    memset(&mState, 0, sizeof(mState));
-}
-
-void StaticAudioTrackServerProxy::framesReadyIsCalledByMultipleThreads()
-{
-    mFramesReadyIsCalledByMultipleThreads = true;
-}
-
-size_t StaticAudioTrackServerProxy::framesReady()
-{
-    // Can't call pollPosition() from multiple threads.
-    if (!mFramesReadyIsCalledByMultipleThreads) {
-        (void) pollPosition();
-    }
-    return mFramesReadySafe;
-}
-
-status_t StaticAudioTrackServerProxy::updateStateWithLoop(
-        StaticAudioTrackState *localState, const StaticAudioTrackState &update) const
-{
-    if (localState->mLoopSequence != update.mLoopSequence) {
-        bool valid = false;
-        const size_t loopStart = update.mLoopStart;
-        const size_t loopEnd = update.mLoopEnd;
-        size_t position = localState->mPosition;
-        if (update.mLoopCount == 0) {
-            valid = true;
-        } else if (update.mLoopCount >= -1) {
-            if (loopStart < loopEnd && loopEnd <= mFrameCount &&
-                    loopEnd - loopStart >= MIN_LOOP) {
-                // If the current position is greater than the end of the loop
-                // we "wrap" to the loop start. This might cause an audible pop.
-                if (position >= loopEnd) {
-                    position = loopStart;
-                }
-                valid = true;
-            }
-        }
-        if (!valid || position > mFrameCount) {
-            return NO_INIT;
-        }
-        localState->mPosition = position;
-        localState->mLoopCount = update.mLoopCount;
-        localState->mLoopEnd = loopEnd;
-        localState->mLoopStart = loopStart;
-        localState->mLoopSequence = update.mLoopSequence;
-    }
-    return OK;
-}
-
-status_t StaticAudioTrackServerProxy::updateStateWithPosition(
-        StaticAudioTrackState *localState, const StaticAudioTrackState &update) const
-{
-    if (localState->mPositionSequence != update.mPositionSequence) {
-        if (update.mPosition > mFrameCount) {
-            return NO_INIT;
-        } else if (localState->mLoopCount != 0 && update.mPosition >= localState->mLoopEnd) {
-            localState->mLoopCount = 0; // disable loop count if position is beyond loop end.
-        }
-        localState->mPosition = update.mPosition;
-        localState->mPositionSequence = update.mPositionSequence;
-    }
-    return OK;
-}
-
-ssize_t StaticAudioTrackServerProxy::pollPosition()
-{
-    StaticAudioTrackState state;
-    if (mObserver.poll(state)) {
-        StaticAudioTrackState trystate = mState;
-        bool result;
-        const int32_t diffSeq = (int32_t) state.mLoopSequence - (int32_t) state.mPositionSequence;
-
-        if (diffSeq < 0) {
-            result = updateStateWithLoop(&trystate, state) == OK &&
-                    updateStateWithPosition(&trystate, state) == OK;
-        } else {
-            result = updateStateWithPosition(&trystate, state) == OK &&
-                    updateStateWithLoop(&trystate, state) == OK;
-        }
-        if (!result) {
-            mObserver.done();
-            // caution: no update occurs so server state will be inconsistent with client state.
-            ALOGE("%s client pushed an invalid state, shutting down", __func__);
-            mIsShutdown = true;
-            return (ssize_t) NO_INIT;
-        }
-        mState = trystate;
-        if (mState.mLoopCount == -1) {
-            mFramesReady = INT64_MAX;
-        } else if (mState.mLoopCount == 0) {
-            mFramesReady = mFrameCount - mState.mPosition;
-        } else if (mState.mLoopCount > 0) {
-            // TODO: Later consider fixing overflow, but does not seem needed now
-            // as will not overflow if loopStart and loopEnd are Java "ints".
-            mFramesReady = int64_t(mState.mLoopCount) * (mState.mLoopEnd - mState.mLoopStart)
-                    + mFrameCount - mState.mPosition;
-        }
-        mFramesReadySafe = clampToSize(mFramesReady);
-        // This may overflow, but client is not supposed to rely on it
-        StaticAudioTrackPosLoop posLoop;
-
-        posLoop.mLoopCount = (int32_t) mState.mLoopCount;
-        posLoop.mBufferPosition = (uint32_t) mState.mPosition;
-        mPosLoopMutator.push(posLoop);
-        mObserver.done(); // safe to read mStatic variables.
-    }
-    return (ssize_t) mState.mPosition;
-}
-
-status_t StaticAudioTrackServerProxy::obtainBuffer(Buffer* buffer, bool ackFlush)
-{
-    if (mIsShutdown) {
-        buffer->mFrameCount = 0;
-        buffer->mRaw = NULL;
-        buffer->mNonContig = 0;
-        mUnreleased = 0;
-        return NO_INIT;
-    }
-    ssize_t positionOrStatus = pollPosition();
-    if (positionOrStatus < 0) {
-        buffer->mFrameCount = 0;
-        buffer->mRaw = NULL;
-        buffer->mNonContig = 0;
-        mUnreleased = 0;
-        return (status_t) positionOrStatus;
-    }
-    size_t position = (size_t) positionOrStatus;
-    size_t end = mState.mLoopCount != 0 ? mState.mLoopEnd : mFrameCount;
-    size_t avail;
-    if (position < end) {
-        avail = end - position;
-        size_t wanted = buffer->mFrameCount;
-        if (avail < wanted) {
-            buffer->mFrameCount = avail;
-        } else {
-            avail = wanted;
-        }
-        buffer->mRaw = &((char *) mBuffers)[position * mFrameSize];
-    } else {
-        avail = 0;
-        buffer->mFrameCount = 0;
-        buffer->mRaw = NULL;
-    }
-    // As mFramesReady is the total remaining frames in the static audio track,
-    // it is always larger or equal to avail.
-    LOG_ALWAYS_FATAL_IF(mFramesReady < (int64_t) avail);
-    buffer->mNonContig = mFramesReady == INT64_MAX ? SIZE_MAX : clampToSize(mFramesReady - avail);
-    if (!ackFlush) {
-        mUnreleased = avail;
-    }
-    return NO_ERROR;
-}
-
-void StaticAudioTrackServerProxy::releaseBuffer(Buffer* buffer)
-{
-    size_t stepCount = buffer->mFrameCount;
-    LOG_ALWAYS_FATAL_IF(!((int64_t) stepCount <= mFramesReady));
-    LOG_ALWAYS_FATAL_IF(!(stepCount <= mUnreleased));
-    if (stepCount == 0) {
-        // prevent accidental re-use of buffer
-        buffer->mRaw = NULL;
-        buffer->mNonContig = 0;
-        return;
-    }
-    mUnreleased -= stepCount;
-    audio_track_cblk_t* cblk = mCblk;
-    size_t position = mState.mPosition;
-    size_t newPosition = position + stepCount;
-    int32_t setFlags = 0;
-    if (!(position <= newPosition && newPosition <= mFrameCount)) {
-        ALOGW("%s newPosition %zu outside [%zu, %zu]", __func__, newPosition, position,
-                mFrameCount);
-        newPosition = mFrameCount;
-    } else if (mState.mLoopCount != 0 && newPosition == mState.mLoopEnd) {
-        newPosition = mState.mLoopStart;
-        if (mState.mLoopCount == -1 || --mState.mLoopCount != 0) {
-            setFlags = CBLK_LOOP_CYCLE;
-        } else {
-            setFlags = CBLK_LOOP_FINAL;
-        }
-    }
-    if (newPosition == mFrameCount) {
-        setFlags |= CBLK_BUFFER_END;
-    }
-    mState.mPosition = newPosition;
-    if (mFramesReady != INT64_MAX) {
-        mFramesReady -= stepCount;
-    }
-    mFramesReadySafe = clampToSize(mFramesReady);
-
-    cblk->mServer += stepCount;
-    mReleased += stepCount;
-
-    // This may overflow, but client is not supposed to rely on it
-    StaticAudioTrackPosLoop posLoop;
-    posLoop.mBufferPosition = mState.mPosition;
-    posLoop.mLoopCount = mState.mLoopCount;
-    mPosLoopMutator.push(posLoop);
-    if (setFlags != 0) {
-        (void) android_atomic_or(setFlags, &cblk->mFlags);
-        // this would be a good place to wake a futex
-    }
-
-    buffer->mFrameCount = 0;
-    buffer->mRaw = NULL;
-    buffer->mNonContig = 0;
-}
-
-void StaticAudioTrackServerProxy::tallyUnderrunFrames(uint32_t frameCount)
-{
-    // Unlike AudioTrackServerProxy::tallyUnderrunFrames() used for streaming tracks,
-    // we don't have a location to count underrun frames.  The underrun frame counter
-    // only exists in AudioTrackSharedStreaming.  Fortunately, underruns are not
-    // possible for static buffer tracks other than at end of buffer, so this is not a loss.
-
-    // FIXME also wake futex so that underrun is noticed more quickly
-    if (frameCount > 0) {
-        (void) android_atomic_or(CBLK_UNDERRUN, &mCblk->mFlags);
-    }
-}
-
-// ---------------------------------------------------------------------------
-
-}   // namespace android
diff --git a/media/libmedia/BufferingSettings.cpp b/media/libmedia/BufferingSettings.cpp
new file mode 100644
index 0000000..a69497e
--- /dev/null
+++ b/media/libmedia/BufferingSettings.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "BufferingSettings"
+//#define LOG_NDEBUG 0
+
+#include <binder/Parcel.h>
+
+#include <media/BufferingSettings.h>
+
+namespace android {
+
+// static
+bool BufferingSettings::IsValidBufferingMode(int mode) {
+    return (mode >= BUFFERING_MODE_NONE && mode < BUFFERING_MODE_COUNT);
+}
+
+// static
+bool BufferingSettings::IsTimeBasedBufferingMode(int mode) {
+    return (mode == BUFFERING_MODE_TIME_ONLY || mode == BUFFERING_MODE_TIME_THEN_SIZE);
+}
+
+// static
+bool BufferingSettings::IsSizeBasedBufferingMode(int mode) {
+    return (mode == BUFFERING_MODE_SIZE_ONLY || mode == BUFFERING_MODE_TIME_THEN_SIZE);
+}
+
+BufferingSettings::BufferingSettings()
+        : mInitialBufferingMode(BUFFERING_MODE_NONE),
+          mRebufferingMode(BUFFERING_MODE_NONE),
+          mInitialWatermarkMs(kNoWatermark),
+          mInitialWatermarkKB(kNoWatermark),
+          mRebufferingWatermarkLowMs(kNoWatermark),
+          mRebufferingWatermarkHighMs(kNoWatermark),
+          mRebufferingWatermarkLowKB(kNoWatermark),
+          mRebufferingWatermarkHighKB(kNoWatermark) { }
+
+status_t BufferingSettings::readFromParcel(const Parcel* parcel) {
+    if (parcel == nullptr) {
+        return BAD_VALUE;
+    }
+    mInitialBufferingMode = (BufferingMode)parcel->readInt32();
+    mRebufferingMode = (BufferingMode)parcel->readInt32();
+    mInitialWatermarkMs = parcel->readInt32();
+    mInitialWatermarkKB = parcel->readInt32();
+    mRebufferingWatermarkLowMs = parcel->readInt32();
+    mRebufferingWatermarkHighMs = parcel->readInt32();
+    mRebufferingWatermarkLowKB = parcel->readInt32();
+    mRebufferingWatermarkHighKB = parcel->readInt32();
+
+    return OK;
+}
+
+status_t BufferingSettings::writeToParcel(Parcel* parcel) const {
+    if (parcel == nullptr) {
+        return BAD_VALUE;
+    }
+    parcel->writeInt32(mInitialBufferingMode);
+    parcel->writeInt32(mRebufferingMode);
+    parcel->writeInt32(mInitialWatermarkMs);
+    parcel->writeInt32(mInitialWatermarkKB);
+    parcel->writeInt32(mRebufferingWatermarkLowMs);
+    parcel->writeInt32(mRebufferingWatermarkHighMs);
+    parcel->writeInt32(mRebufferingWatermarkLowKB);
+    parcel->writeInt32(mRebufferingWatermarkHighKB);
+
+    return OK;
+}
+
+String8 BufferingSettings::toString() const {
+    String8 s;
+    s.appendFormat("initialMode(%d), rebufferingMode(%d), "
+            "initialMarks(%d ms, %d KB), rebufferingMarks(%d, %d)ms, (%d, %d)KB",
+            mInitialBufferingMode, mRebufferingMode,
+            mInitialWatermarkMs, mInitialWatermarkKB,
+            mRebufferingWatermarkLowMs, mRebufferingWatermarkHighMs,
+            mRebufferingWatermarkLowKB, mRebufferingWatermarkHighKB);
+    return s;
+}
+
+} // namespace android
diff --git a/media/libmedia/IAudioFlinger.cpp b/media/libmedia/IAudioFlinger.cpp
deleted file mode 100644
index 900d418..0000000
--- a/media/libmedia/IAudioFlinger.cpp
+++ /dev/null
@@ -1,1459 +0,0 @@
-/*
-**
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#define LOG_TAG "IAudioFlinger"
-//#define LOG_NDEBUG 0
-#include <utils/Log.h>
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <binder/Parcel.h>
-
-#include <media/IAudioFlinger.h>
-
-namespace android {
-
-enum {
-    CREATE_TRACK = IBinder::FIRST_CALL_TRANSACTION,
-    OPEN_RECORD,
-    SAMPLE_RATE,
-    RESERVED,   // obsolete, was CHANNEL_COUNT
-    FORMAT,
-    FRAME_COUNT,
-    LATENCY,
-    SET_MASTER_VOLUME,
-    SET_MASTER_MUTE,
-    MASTER_VOLUME,
-    MASTER_MUTE,
-    SET_STREAM_VOLUME,
-    SET_STREAM_MUTE,
-    STREAM_VOLUME,
-    STREAM_MUTE,
-    SET_MODE,
-    SET_MIC_MUTE,
-    GET_MIC_MUTE,
-    SET_PARAMETERS,
-    GET_PARAMETERS,
-    REGISTER_CLIENT,
-    GET_INPUTBUFFERSIZE,
-    OPEN_OUTPUT,
-    OPEN_DUPLICATE_OUTPUT,
-    CLOSE_OUTPUT,
-    SUSPEND_OUTPUT,
-    RESTORE_OUTPUT,
-    OPEN_INPUT,
-    CLOSE_INPUT,
-    INVALIDATE_STREAM,
-    SET_VOICE_VOLUME,
-    GET_RENDER_POSITION,
-    GET_INPUT_FRAMES_LOST,
-    NEW_AUDIO_SESSION_ID,
-    ACQUIRE_AUDIO_SESSION_ID,
-    RELEASE_AUDIO_SESSION_ID,
-    QUERY_NUM_EFFECTS,
-    QUERY_EFFECT,
-    GET_EFFECT_DESCRIPTOR,
-    CREATE_EFFECT,
-    MOVE_EFFECTS,
-    LOAD_HW_MODULE,
-    GET_PRIMARY_OUTPUT_SAMPLING_RATE,
-    GET_PRIMARY_OUTPUT_FRAME_COUNT,
-    SET_LOW_RAM_DEVICE,
-    LIST_AUDIO_PORTS,
-    GET_AUDIO_PORT,
-    CREATE_AUDIO_PATCH,
-    RELEASE_AUDIO_PATCH,
-    LIST_AUDIO_PATCHES,
-    SET_AUDIO_PORT_CONFIG,
-    GET_AUDIO_HW_SYNC,
-    SYSTEM_READY,
-    FRAME_COUNT_HAL,
-};
-
-#define MAX_ITEMS_PER_LIST 1024
-
-class BpAudioFlinger : public BpInterface<IAudioFlinger>
-{
-public:
-    BpAudioFlinger(const sp<IBinder>& impl)
-        : BpInterface<IAudioFlinger>(impl)
-    {
-    }
-
-    virtual sp<IAudioTrack> createTrack(
-                                audio_stream_type_t streamType,
-                                uint32_t sampleRate,
-                                audio_format_t format,
-                                audio_channel_mask_t channelMask,
-                                size_t *pFrameCount,
-                                audio_output_flags_t *flags,
-                                const sp<IMemory>& sharedBuffer,
-                                audio_io_handle_t output,
-                                pid_t pid,
-                                pid_t tid,
-                                audio_session_t *sessionId,
-                                int clientUid,
-                                status_t *status)
-    {
-        Parcel data, reply;
-        sp<IAudioTrack> track;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) streamType);
-        data.writeInt32(sampleRate);
-        data.writeInt32(format);
-        data.writeInt32(channelMask);
-        size_t frameCount = pFrameCount != NULL ? *pFrameCount : 0;
-        data.writeInt64(frameCount);
-        audio_output_flags_t lFlags = flags != NULL ? *flags : AUDIO_OUTPUT_FLAG_NONE;
-        data.writeInt32(lFlags);
-        // haveSharedBuffer
-        if (sharedBuffer != 0) {
-            data.writeInt32(true);
-            data.writeStrongBinder(IInterface::asBinder(sharedBuffer));
-        } else {
-            data.writeInt32(false);
-        }
-        data.writeInt32((int32_t) output);
-        data.writeInt32((int32_t) pid);
-        data.writeInt32((int32_t) tid);
-        audio_session_t lSessionId = AUDIO_SESSION_ALLOCATE;
-        if (sessionId != NULL) {
-            lSessionId = *sessionId;
-        }
-        data.writeInt32(lSessionId);
-        data.writeInt32(clientUid);
-        status_t lStatus = remote()->transact(CREATE_TRACK, data, &reply);
-        if (lStatus != NO_ERROR) {
-            ALOGE("createTrack error: %s", strerror(-lStatus));
-        } else {
-            frameCount = reply.readInt64();
-            if (pFrameCount != NULL) {
-                *pFrameCount = frameCount;
-            }
-            lFlags = (audio_output_flags_t)reply.readInt32();
-            if (flags != NULL) {
-                *flags = lFlags;
-            }
-            lSessionId = (audio_session_t) reply.readInt32();
-            if (sessionId != NULL) {
-                *sessionId = lSessionId;
-            }
-            lStatus = reply.readInt32();
-            track = interface_cast<IAudioTrack>(reply.readStrongBinder());
-            if (lStatus == NO_ERROR) {
-                if (track == 0) {
-                    ALOGE("createTrack should have returned an IAudioTrack");
-                    lStatus = UNKNOWN_ERROR;
-                }
-            } else {
-                if (track != 0) {
-                    ALOGE("createTrack returned an IAudioTrack but with status %d", lStatus);
-                    track.clear();
-                }
-            }
-        }
-        if (status != NULL) {
-            *status = lStatus;
-        }
-        return track;
-    }
-
-    virtual sp<IAudioRecord> openRecord(
-                                audio_io_handle_t input,
-                                uint32_t sampleRate,
-                                audio_format_t format,
-                                audio_channel_mask_t channelMask,
-                                const String16& opPackageName,
-                                size_t *pFrameCount,
-                                audio_input_flags_t *flags,
-                                pid_t pid,
-                                pid_t tid,
-                                int clientUid,
-                                audio_session_t *sessionId,
-                                size_t *notificationFrames,
-                                sp<IMemory>& cblk,
-                                sp<IMemory>& buffers,
-                                status_t *status)
-    {
-        Parcel data, reply;
-        sp<IAudioRecord> record;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) input);
-        data.writeInt32(sampleRate);
-        data.writeInt32(format);
-        data.writeInt32(channelMask);
-        data.writeString16(opPackageName);
-        size_t frameCount = pFrameCount != NULL ? *pFrameCount : 0;
-        data.writeInt64(frameCount);
-        audio_input_flags_t lFlags = flags != NULL ? *flags : AUDIO_INPUT_FLAG_NONE;
-        data.writeInt32(lFlags);
-        data.writeInt32((int32_t) pid);
-        data.writeInt32((int32_t) tid);
-        data.writeInt32((int32_t) clientUid);
-        audio_session_t lSessionId = AUDIO_SESSION_ALLOCATE;
-        if (sessionId != NULL) {
-            lSessionId = *sessionId;
-        }
-        data.writeInt32(lSessionId);
-        data.writeInt64(notificationFrames != NULL ? *notificationFrames : 0);
-        cblk.clear();
-        buffers.clear();
-        status_t lStatus = remote()->transact(OPEN_RECORD, data, &reply);
-        if (lStatus != NO_ERROR) {
-            ALOGE("openRecord error: %s", strerror(-lStatus));
-        } else {
-            frameCount = reply.readInt64();
-            if (pFrameCount != NULL) {
-                *pFrameCount = frameCount;
-            }
-            lFlags = (audio_input_flags_t)reply.readInt32();
-            if (flags != NULL) {
-                *flags = lFlags;
-            }
-            lSessionId = (audio_session_t) reply.readInt32();
-            if (sessionId != NULL) {
-                *sessionId = lSessionId;
-            }
-            size_t lNotificationFrames = (size_t) reply.readInt64();
-            if (notificationFrames != NULL) {
-                *notificationFrames = lNotificationFrames;
-            }
-            lStatus = reply.readInt32();
-            record = interface_cast<IAudioRecord>(reply.readStrongBinder());
-            cblk = interface_cast<IMemory>(reply.readStrongBinder());
-            if (cblk != 0 && cblk->pointer() == NULL) {
-                cblk.clear();
-            }
-            buffers = interface_cast<IMemory>(reply.readStrongBinder());
-            if (buffers != 0 && buffers->pointer() == NULL) {
-                buffers.clear();
-            }
-            if (lStatus == NO_ERROR) {
-                if (record == 0) {
-                    ALOGE("openRecord should have returned an IAudioRecord");
-                    lStatus = UNKNOWN_ERROR;
-                } else if (cblk == 0) {
-                    ALOGE("openRecord should have returned a cblk");
-                    lStatus = NO_MEMORY;
-                }
-                // buffers is permitted to be 0
-            } else {
-                if (record != 0 || cblk != 0 || buffers != 0) {
-                    ALOGE("openRecord returned an IAudioRecord, cblk, "
-                          "or buffers but with status %d", lStatus);
-                }
-            }
-            if (lStatus != NO_ERROR) {
-                record.clear();
-                cblk.clear();
-                buffers.clear();
-            }
-        }
-        if (status != NULL) {
-            *status = lStatus;
-        }
-        return record;
-    }
-
-    virtual uint32_t sampleRate(audio_io_handle_t ioHandle) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) ioHandle);
-        remote()->transact(SAMPLE_RATE, data, &reply);
-        return reply.readInt32();
-    }
-
-    // RESERVED for channelCount()
-
-    virtual audio_format_t format(audio_io_handle_t output) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) output);
-        remote()->transact(FORMAT, data, &reply);
-        return (audio_format_t) reply.readInt32();
-    }
-
-    virtual size_t frameCount(audio_io_handle_t ioHandle) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) ioHandle);
-        remote()->transact(FRAME_COUNT, data, &reply);
-        return reply.readInt64();
-    }
-
-    virtual uint32_t latency(audio_io_handle_t output) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) output);
-        remote()->transact(LATENCY, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t setMasterVolume(float value)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeFloat(value);
-        remote()->transact(SET_MASTER_VOLUME, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t setMasterMute(bool muted)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(muted);
-        remote()->transact(SET_MASTER_MUTE, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual float masterVolume() const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        remote()->transact(MASTER_VOLUME, data, &reply);
-        return reply.readFloat();
-    }
-
-    virtual bool masterMute() const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        remote()->transact(MASTER_MUTE, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t setStreamVolume(audio_stream_type_t stream, float value,
-            audio_io_handle_t output)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) stream);
-        data.writeFloat(value);
-        data.writeInt32((int32_t) output);
-        remote()->transact(SET_STREAM_VOLUME, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t setStreamMute(audio_stream_type_t stream, bool muted)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) stream);
-        data.writeInt32(muted);
-        remote()->transact(SET_STREAM_MUTE, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual float streamVolume(audio_stream_type_t stream, audio_io_handle_t output) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) stream);
-        data.writeInt32((int32_t) output);
-        remote()->transact(STREAM_VOLUME, data, &reply);
-        return reply.readFloat();
-    }
-
-    virtual bool streamMute(audio_stream_type_t stream) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) stream);
-        remote()->transact(STREAM_MUTE, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t setMode(audio_mode_t mode)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(mode);
-        remote()->transact(SET_MODE, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t setMicMute(bool state)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(state);
-        remote()->transact(SET_MIC_MUTE, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual bool getMicMute() const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        remote()->transact(GET_MIC_MUTE, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) ioHandle);
-        data.writeString8(keyValuePairs);
-        remote()->transact(SET_PARAMETERS, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) ioHandle);
-        data.writeString8(keys);
-        remote()->transact(GET_PARAMETERS, data, &reply);
-        return reply.readString8();
-    }
-
-    virtual void registerClient(const sp<IAudioFlingerClient>& client)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(client));
-        remote()->transact(REGISTER_CLIENT, data, &reply);
-    }
-
-    virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
-            audio_channel_mask_t channelMask) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(sampleRate);
-        data.writeInt32(format);
-        data.writeInt32(channelMask);
-        remote()->transact(GET_INPUTBUFFERSIZE, data, &reply);
-        return reply.readInt64();
-    }
-
-    virtual status_t openOutput(audio_module_handle_t module,
-                                audio_io_handle_t *output,
-                                audio_config_t *config,
-                                audio_devices_t *devices,
-                                const String8& address,
-                                uint32_t *latencyMs,
-                                audio_output_flags_t flags)
-    {
-        if (output == NULL || config == NULL || devices == NULL || latencyMs == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(module);
-        data.write(config, sizeof(audio_config_t));
-        data.writeInt32(*devices);
-        data.writeString8(address);
-        data.writeInt32((int32_t) flags);
-        status_t status = remote()->transact(OPEN_OUTPUT, data, &reply);
-        if (status != NO_ERROR) {
-            *output = AUDIO_IO_HANDLE_NONE;
-            return status;
-        }
-        status = (status_t)reply.readInt32();
-        if (status != NO_ERROR) {
-            *output = AUDIO_IO_HANDLE_NONE;
-            return status;
-        }
-        *output = (audio_io_handle_t)reply.readInt32();
-        ALOGV("openOutput() returned output, %d", *output);
-        reply.read(config, sizeof(audio_config_t));
-        *devices = (audio_devices_t)reply.readInt32();
-        *latencyMs = reply.readInt32();
-        return NO_ERROR;
-    }
-
-    virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1,
-            audio_io_handle_t output2)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) output1);
-        data.writeInt32((int32_t) output2);
-        remote()->transact(OPEN_DUPLICATE_OUTPUT, data, &reply);
-        return (audio_io_handle_t) reply.readInt32();
-    }
-
-    virtual status_t closeOutput(audio_io_handle_t output)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) output);
-        remote()->transact(CLOSE_OUTPUT, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t suspendOutput(audio_io_handle_t output)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) output);
-        remote()->transact(SUSPEND_OUTPUT, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t restoreOutput(audio_io_handle_t output)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) output);
-        remote()->transact(RESTORE_OUTPUT, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t openInput(audio_module_handle_t module,
-                               audio_io_handle_t *input,
-                               audio_config_t *config,
-                               audio_devices_t *device,
-                               const String8& address,
-                               audio_source_t source,
-                               audio_input_flags_t flags)
-    {
-        if (input == NULL || config == NULL || device == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(module);
-        data.writeInt32(*input);
-        data.write(config, sizeof(audio_config_t));
-        data.writeInt32(*device);
-        data.writeString8(address);
-        data.writeInt32(source);
-        data.writeInt32(flags);
-        status_t status = remote()->transact(OPEN_INPUT, data, &reply);
-        if (status != NO_ERROR) {
-            *input = AUDIO_IO_HANDLE_NONE;
-            return status;
-        }
-        status = (status_t)reply.readInt32();
-        if (status != NO_ERROR) {
-            *input = AUDIO_IO_HANDLE_NONE;
-            return status;
-        }
-        *input = (audio_io_handle_t)reply.readInt32();
-        reply.read(config, sizeof(audio_config_t));
-        *device = (audio_devices_t)reply.readInt32();
-        return NO_ERROR;
-    }
-
-    virtual status_t closeInput(int input)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(input);
-        remote()->transact(CLOSE_INPUT, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t invalidateStream(audio_stream_type_t stream)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) stream);
-        remote()->transact(INVALIDATE_STREAM, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t setVoiceVolume(float volume)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeFloat(volume);
-        remote()->transact(SET_VOICE_VOLUME, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames,
-            audio_io_handle_t output) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) output);
-        remote()->transact(GET_RENDER_POSITION, data, &reply);
-        status_t status = reply.readInt32();
-        if (status == NO_ERROR) {
-            uint32_t tmp = reply.readInt32();
-            if (halFrames != NULL) {
-                *halFrames = tmp;
-            }
-            tmp = reply.readInt32();
-            if (dspFrames != NULL) {
-                *dspFrames = tmp;
-            }
-        }
-        return status;
-    }
-
-    virtual uint32_t getInputFramesLost(audio_io_handle_t ioHandle) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) ioHandle);
-        status_t status = remote()->transact(GET_INPUT_FRAMES_LOST, data, &reply);
-        if (status != NO_ERROR) {
-            return 0;
-        }
-        return (uint32_t) reply.readInt32();
-    }
-
-    virtual audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) use);
-        status_t status = remote()->transact(NEW_AUDIO_SESSION_ID, data, &reply);
-        audio_unique_id_t id = AUDIO_SESSION_ALLOCATE;
-        if (status == NO_ERROR) {
-            id = reply.readInt32();
-        }
-        return id;
-    }
-
-    virtual void acquireAudioSessionId(audio_session_t audioSession, int pid)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(audioSession);
-        data.writeInt32(pid);
-        remote()->transact(ACQUIRE_AUDIO_SESSION_ID, data, &reply);
-    }
-
-    virtual void releaseAudioSessionId(audio_session_t audioSession, int pid)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(audioSession);
-        data.writeInt32(pid);
-        remote()->transact(RELEASE_AUDIO_SESSION_ID, data, &reply);
-    }
-
-    virtual status_t queryNumberEffects(uint32_t *numEffects) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        status_t status = remote()->transact(QUERY_NUM_EFFECTS, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        status = reply.readInt32();
-        if (status != NO_ERROR) {
-            return status;
-        }
-        if (numEffects != NULL) {
-            *numEffects = (uint32_t)reply.readInt32();
-        }
-        return NO_ERROR;
-    }
-
-    virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const
-    {
-        if (pDescriptor == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(index);
-        status_t status = remote()->transact(QUERY_EFFECT, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        status = reply.readInt32();
-        if (status != NO_ERROR) {
-            return status;
-        }
-        reply.read(pDescriptor, sizeof(effect_descriptor_t));
-        return NO_ERROR;
-    }
-
-    virtual status_t getEffectDescriptor(const effect_uuid_t *pUuid,
-            effect_descriptor_t *pDescriptor) const
-    {
-        if (pUuid == NULL || pDescriptor == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.write(pUuid, sizeof(effect_uuid_t));
-        status_t status = remote()->transact(GET_EFFECT_DESCRIPTOR, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        status = reply.readInt32();
-        if (status != NO_ERROR) {
-            return status;
-        }
-        reply.read(pDescriptor, sizeof(effect_descriptor_t));
-        return NO_ERROR;
-    }
-
-    virtual sp<IEffect> createEffect(
-                                    effect_descriptor_t *pDesc,
-                                    const sp<IEffectClient>& client,
-                                    int32_t priority,
-                                    audio_io_handle_t output,
-                                    audio_session_t sessionId,
-                                    const String16& opPackageName,
-                                    status_t *status,
-                                    int *id,
-                                    int *enabled)
-    {
-        Parcel data, reply;
-        sp<IEffect> effect;
-
-        if (pDesc == NULL) {
-            return effect;
-            if (status != NULL) {
-                *status = BAD_VALUE;
-            }
-        }
-
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.write(pDesc, sizeof(effect_descriptor_t));
-        data.writeStrongBinder(IInterface::asBinder(client));
-        data.writeInt32(priority);
-        data.writeInt32((int32_t) output);
-        data.writeInt32(sessionId);
-        data.writeString16(opPackageName);
-
-        status_t lStatus = remote()->transact(CREATE_EFFECT, data, &reply);
-        if (lStatus != NO_ERROR) {
-            ALOGE("createEffect error: %s", strerror(-lStatus));
-        } else {
-            lStatus = reply.readInt32();
-            int tmp = reply.readInt32();
-            if (id != NULL) {
-                *id = tmp;
-            }
-            tmp = reply.readInt32();
-            if (enabled != NULL) {
-                *enabled = tmp;
-            }
-            effect = interface_cast<IEffect>(reply.readStrongBinder());
-            reply.read(pDesc, sizeof(effect_descriptor_t));
-        }
-        if (status != NULL) {
-            *status = lStatus;
-        }
-
-        return effect;
-    }
-
-    virtual status_t moveEffects(audio_session_t session, audio_io_handle_t srcOutput,
-            audio_io_handle_t dstOutput)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(session);
-        data.writeInt32((int32_t) srcOutput);
-        data.writeInt32((int32_t) dstOutput);
-        remote()->transact(MOVE_EFFECTS, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual audio_module_handle_t loadHwModule(const char *name)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeCString(name);
-        remote()->transact(LOAD_HW_MODULE, data, &reply);
-        return (audio_module_handle_t) reply.readInt32();
-    }
-
-    virtual uint32_t getPrimaryOutputSamplingRate()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        remote()->transact(GET_PRIMARY_OUTPUT_SAMPLING_RATE, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual size_t getPrimaryOutputFrameCount()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        remote()->transact(GET_PRIMARY_OUTPUT_FRAME_COUNT, data, &reply);
-        return reply.readInt64();
-    }
-
-    virtual status_t setLowRamDevice(bool isLowRamDevice)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int) isLowRamDevice);
-        remote()->transact(SET_LOW_RAM_DEVICE, data, &reply);
-        return reply.readInt32();
-    }
-    virtual status_t listAudioPorts(unsigned int *num_ports,
-                                    struct audio_port *ports)
-    {
-        if (num_ports == NULL || *num_ports == 0 || ports == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(*num_ports);
-        status_t status = remote()->transact(LIST_AUDIO_PORTS, data, &reply);
-        if (status != NO_ERROR ||
-                (status = (status_t)reply.readInt32()) != NO_ERROR) {
-            return status;
-        }
-        *num_ports = (unsigned int)reply.readInt32();
-        reply.read(ports, *num_ports * sizeof(struct audio_port));
-        return status;
-    }
-    virtual status_t getAudioPort(struct audio_port *port)
-    {
-        if (port == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.write(port, sizeof(struct audio_port));
-        status_t status = remote()->transact(GET_AUDIO_PORT, data, &reply);
-        if (status != NO_ERROR ||
-                (status = (status_t)reply.readInt32()) != NO_ERROR) {
-            return status;
-        }
-        reply.read(port, sizeof(struct audio_port));
-        return status;
-    }
-    virtual status_t createAudioPatch(const struct audio_patch *patch,
-                                       audio_patch_handle_t *handle)
-    {
-        if (patch == NULL || handle == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.write(patch, sizeof(struct audio_patch));
-        data.write(handle, sizeof(audio_patch_handle_t));
-        status_t status = remote()->transact(CREATE_AUDIO_PATCH, data, &reply);
-        if (status != NO_ERROR ||
-                (status = (status_t)reply.readInt32()) != NO_ERROR) {
-            return status;
-        }
-        reply.read(handle, sizeof(audio_patch_handle_t));
-        return status;
-    }
-    virtual status_t releaseAudioPatch(audio_patch_handle_t handle)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.write(&handle, sizeof(audio_patch_handle_t));
-        status_t status = remote()->transact(RELEASE_AUDIO_PATCH, data, &reply);
-        if (status != NO_ERROR) {
-            status = (status_t)reply.readInt32();
-        }
-        return status;
-    }
-    virtual status_t listAudioPatches(unsigned int *num_patches,
-                                      struct audio_patch *patches)
-    {
-        if (num_patches == NULL || *num_patches == 0 || patches == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(*num_patches);
-        status_t status = remote()->transact(LIST_AUDIO_PATCHES, data, &reply);
-        if (status != NO_ERROR ||
-                (status = (status_t)reply.readInt32()) != NO_ERROR) {
-            return status;
-        }
-        *num_patches = (unsigned int)reply.readInt32();
-        reply.read(patches, *num_patches * sizeof(struct audio_patch));
-        return status;
-    }
-    virtual status_t setAudioPortConfig(const struct audio_port_config *config)
-    {
-        if (config == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.write(config, sizeof(struct audio_port_config));
-        status_t status = remote()->transact(SET_AUDIO_PORT_CONFIG, data, &reply);
-        if (status != NO_ERROR) {
-            status = (status_t)reply.readInt32();
-        }
-        return status;
-    }
-    virtual audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32(sessionId);
-        status_t status = remote()->transact(GET_AUDIO_HW_SYNC, data, &reply);
-        if (status != NO_ERROR) {
-            return AUDIO_HW_SYNC_INVALID;
-        }
-        return (audio_hw_sync_t)reply.readInt32();
-    }
-    virtual status_t systemReady()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        return remote()->transact(SYSTEM_READY, data, &reply, IBinder::FLAG_ONEWAY);
-    }
-    virtual size_t frameCountHAL(audio_io_handle_t ioHandle) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
-        data.writeInt32((int32_t) ioHandle);
-        status_t status = remote()->transact(FRAME_COUNT_HAL, data, &reply);
-        if (status != NO_ERROR) {
-            return 0;
-        }
-        return reply.readInt64();
-    }
-
-};
-
-IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger");
-
-// ----------------------------------------------------------------------
-
-status_t BnAudioFlinger::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-        case CREATE_TRACK: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            int streamType = data.readInt32();
-            uint32_t sampleRate = data.readInt32();
-            audio_format_t format = (audio_format_t) data.readInt32();
-            audio_channel_mask_t channelMask = data.readInt32();
-            size_t frameCount = data.readInt64();
-            audio_output_flags_t flags = (audio_output_flags_t) data.readInt32();
-            bool haveSharedBuffer = data.readInt32() != 0;
-            sp<IMemory> buffer;
-            if (haveSharedBuffer) {
-                buffer = interface_cast<IMemory>(data.readStrongBinder());
-            }
-            audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
-            pid_t pid = (pid_t) data.readInt32();
-            pid_t tid = (pid_t) data.readInt32();
-            audio_session_t sessionId = (audio_session_t) data.readInt32();
-            int clientUid = data.readInt32();
-            status_t status = NO_ERROR;
-            sp<IAudioTrack> track;
-            if ((haveSharedBuffer && (buffer == 0)) ||
-                    ((buffer != 0) && (buffer->pointer() == NULL))) {
-                ALOGW("CREATE_TRACK: cannot retrieve shared memory");
-                status = DEAD_OBJECT;
-            } else {
-                track = createTrack(
-                        (audio_stream_type_t) streamType, sampleRate, format,
-                        channelMask, &frameCount, &flags, buffer, output, pid, tid,
-                        &sessionId, clientUid, &status);
-                LOG_ALWAYS_FATAL_IF((track != 0) != (status == NO_ERROR));
-            }
-            reply->writeInt64(frameCount);
-            reply->writeInt32(flags);
-            reply->writeInt32(sessionId);
-            reply->writeInt32(status);
-            reply->writeStrongBinder(IInterface::asBinder(track));
-            return NO_ERROR;
-        } break;
-        case OPEN_RECORD: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_io_handle_t input = (audio_io_handle_t) data.readInt32();
-            uint32_t sampleRate = data.readInt32();
-            audio_format_t format = (audio_format_t) data.readInt32();
-            audio_channel_mask_t channelMask = data.readInt32();
-            const String16& opPackageName = data.readString16();
-            size_t frameCount = data.readInt64();
-            audio_input_flags_t flags = (audio_input_flags_t) data.readInt32();
-            pid_t pid = (pid_t) data.readInt32();
-            pid_t tid = (pid_t) data.readInt32();
-            int clientUid = data.readInt32();
-            audio_session_t sessionId = (audio_session_t) data.readInt32();
-            size_t notificationFrames = data.readInt64();
-            sp<IMemory> cblk;
-            sp<IMemory> buffers;
-            status_t status = NO_ERROR;
-            sp<IAudioRecord> record = openRecord(input,
-                    sampleRate, format, channelMask, opPackageName, &frameCount, &flags,
-                    pid, tid, clientUid, &sessionId, &notificationFrames, cblk, buffers,
-                    &status);
-            LOG_ALWAYS_FATAL_IF((record != 0) != (status == NO_ERROR));
-            reply->writeInt64(frameCount);
-            reply->writeInt32(flags);
-            reply->writeInt32(sessionId);
-            reply->writeInt64(notificationFrames);
-            reply->writeInt32(status);
-            reply->writeStrongBinder(IInterface::asBinder(record));
-            reply->writeStrongBinder(IInterface::asBinder(cblk));
-            reply->writeStrongBinder(IInterface::asBinder(buffers));
-            return NO_ERROR;
-        } break;
-        case SAMPLE_RATE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32( sampleRate((audio_io_handle_t) data.readInt32()) );
-            return NO_ERROR;
-        } break;
-
-        // RESERVED for channelCount()
-
-        case FORMAT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32( format((audio_io_handle_t) data.readInt32()) );
-            return NO_ERROR;
-        } break;
-        case FRAME_COUNT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt64( frameCount((audio_io_handle_t) data.readInt32()) );
-            return NO_ERROR;
-        } break;
-        case LATENCY: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32( latency((audio_io_handle_t) data.readInt32()) );
-            return NO_ERROR;
-        } break;
-        case SET_MASTER_VOLUME: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32( setMasterVolume(data.readFloat()) );
-            return NO_ERROR;
-        } break;
-        case SET_MASTER_MUTE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32( setMasterMute(data.readInt32()) );
-            return NO_ERROR;
-        } break;
-        case MASTER_VOLUME: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeFloat( masterVolume() );
-            return NO_ERROR;
-        } break;
-        case MASTER_MUTE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32( masterMute() );
-            return NO_ERROR;
-        } break;
-        case SET_STREAM_VOLUME: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            int stream = data.readInt32();
-            float volume = data.readFloat();
-            audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
-            reply->writeInt32( setStreamVolume((audio_stream_type_t) stream, volume, output) );
-            return NO_ERROR;
-        } break;
-        case SET_STREAM_MUTE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            int stream = data.readInt32();
-            reply->writeInt32( setStreamMute((audio_stream_type_t) stream, data.readInt32()) );
-            return NO_ERROR;
-        } break;
-        case STREAM_VOLUME: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            int stream = data.readInt32();
-            int output = data.readInt32();
-            reply->writeFloat( streamVolume((audio_stream_type_t) stream, output) );
-            return NO_ERROR;
-        } break;
-        case STREAM_MUTE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            int stream = data.readInt32();
-            reply->writeInt32( streamMute((audio_stream_type_t) stream) );
-            return NO_ERROR;
-        } break;
-        case SET_MODE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_mode_t mode = (audio_mode_t) data.readInt32();
-            reply->writeInt32( setMode(mode) );
-            return NO_ERROR;
-        } break;
-        case SET_MIC_MUTE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            int state = data.readInt32();
-            reply->writeInt32( setMicMute(state) );
-            return NO_ERROR;
-        } break;
-        case GET_MIC_MUTE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32( getMicMute() );
-            return NO_ERROR;
-        } break;
-        case SET_PARAMETERS: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32();
-            String8 keyValuePairs(data.readString8());
-            reply->writeInt32(setParameters(ioHandle, keyValuePairs));
-            return NO_ERROR;
-        } break;
-        case GET_PARAMETERS: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32();
-            String8 keys(data.readString8());
-            reply->writeString8(getParameters(ioHandle, keys));
-            return NO_ERROR;
-        } break;
-
-        case REGISTER_CLIENT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            sp<IAudioFlingerClient> client = interface_cast<IAudioFlingerClient>(
-                    data.readStrongBinder());
-            registerClient(client);
-            return NO_ERROR;
-        } break;
-        case GET_INPUTBUFFERSIZE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            uint32_t sampleRate = data.readInt32();
-            audio_format_t format = (audio_format_t) data.readInt32();
-            audio_channel_mask_t channelMask = data.readInt32();
-            reply->writeInt64( getInputBufferSize(sampleRate, format, channelMask) );
-            return NO_ERROR;
-        } break;
-        case OPEN_OUTPUT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_module_handle_t module = (audio_module_handle_t)data.readInt32();
-            audio_config_t config = {};
-            if (data.read(&config, sizeof(audio_config_t)) != NO_ERROR) {
-                ALOGE("b/23905951");
-            }
-            audio_devices_t devices = (audio_devices_t)data.readInt32();
-            String8 address(data.readString8());
-            audio_output_flags_t flags = (audio_output_flags_t) data.readInt32();
-            uint32_t latencyMs = 0;
-            audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
-            status_t status = openOutput(module, &output, &config,
-                                         &devices, address, &latencyMs, flags);
-            ALOGV("OPEN_OUTPUT output, %d", output);
-            reply->writeInt32((int32_t)status);
-            if (status == NO_ERROR) {
-                reply->writeInt32((int32_t)output);
-                reply->write(&config, sizeof(audio_config_t));
-                reply->writeInt32(devices);
-                reply->writeInt32(latencyMs);
-            }
-            return NO_ERROR;
-        } break;
-        case OPEN_DUPLICATE_OUTPUT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_io_handle_t output1 = (audio_io_handle_t) data.readInt32();
-            audio_io_handle_t output2 = (audio_io_handle_t) data.readInt32();
-            reply->writeInt32((int32_t) openDuplicateOutput(output1, output2));
-            return NO_ERROR;
-        } break;
-        case CLOSE_OUTPUT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32(closeOutput((audio_io_handle_t) data.readInt32()));
-            return NO_ERROR;
-        } break;
-        case SUSPEND_OUTPUT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32(suspendOutput((audio_io_handle_t) data.readInt32()));
-            return NO_ERROR;
-        } break;
-        case RESTORE_OUTPUT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32(restoreOutput((audio_io_handle_t) data.readInt32()));
-            return NO_ERROR;
-        } break;
-        case OPEN_INPUT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_module_handle_t module = (audio_module_handle_t)data.readInt32();
-            audio_io_handle_t input = (audio_io_handle_t)data.readInt32();
-            audio_config_t config = {};
-            if (data.read(&config, sizeof(audio_config_t)) != NO_ERROR) {
-                ALOGE("b/23905951");
-            }
-            audio_devices_t device = (audio_devices_t)data.readInt32();
-            String8 address(data.readString8());
-            audio_source_t source = (audio_source_t)data.readInt32();
-            audio_input_flags_t flags = (audio_input_flags_t) data.readInt32();
-
-            status_t status = openInput(module, &input, &config,
-                                        &device, address, source, flags);
-            reply->writeInt32((int32_t) status);
-            if (status == NO_ERROR) {
-                reply->writeInt32((int32_t) input);
-                reply->write(&config, sizeof(audio_config_t));
-                reply->writeInt32(device);
-            }
-            return NO_ERROR;
-        } break;
-        case CLOSE_INPUT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32(closeInput((audio_io_handle_t) data.readInt32()));
-            return NO_ERROR;
-        } break;
-        case INVALIDATE_STREAM: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_stream_type_t stream = (audio_stream_type_t) data.readInt32();
-            reply->writeInt32(invalidateStream(stream));
-            return NO_ERROR;
-        } break;
-        case SET_VOICE_VOLUME: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            float volume = data.readFloat();
-            reply->writeInt32( setVoiceVolume(volume) );
-            return NO_ERROR;
-        } break;
-        case GET_RENDER_POSITION: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
-            uint32_t halFrames = 0;
-            uint32_t dspFrames = 0;
-            status_t status = getRenderPosition(&halFrames, &dspFrames, output);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->writeInt32(halFrames);
-                reply->writeInt32(dspFrames);
-            }
-            return NO_ERROR;
-        }
-        case GET_INPUT_FRAMES_LOST: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32();
-            reply->writeInt32((int32_t) getInputFramesLost(ioHandle));
-            return NO_ERROR;
-        } break;
-        case NEW_AUDIO_SESSION_ID: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32(newAudioUniqueId((audio_unique_id_use_t) data.readInt32()));
-            return NO_ERROR;
-        } break;
-        case ACQUIRE_AUDIO_SESSION_ID: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_session_t audioSession = (audio_session_t) data.readInt32();
-            int pid = data.readInt32();
-            acquireAudioSessionId(audioSession, pid);
-            return NO_ERROR;
-        } break;
-        case RELEASE_AUDIO_SESSION_ID: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_session_t audioSession = (audio_session_t) data.readInt32();
-            int pid = data.readInt32();
-            releaseAudioSessionId(audioSession, pid);
-            return NO_ERROR;
-        } break;
-        case QUERY_NUM_EFFECTS: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            uint32_t numEffects = 0;
-            status_t status = queryNumberEffects(&numEffects);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->writeInt32((int32_t)numEffects);
-            }
-            return NO_ERROR;
-        }
-        case QUERY_EFFECT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            effect_descriptor_t desc = {};
-            status_t status = queryEffect(data.readInt32(), &desc);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->write(&desc, sizeof(effect_descriptor_t));
-            }
-            return NO_ERROR;
-        }
-        case GET_EFFECT_DESCRIPTOR: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            effect_uuid_t uuid;
-            data.read(&uuid, sizeof(effect_uuid_t));
-            effect_descriptor_t desc = {};
-            status_t status = getEffectDescriptor(&uuid, &desc);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->write(&desc, sizeof(effect_descriptor_t));
-            }
-            return NO_ERROR;
-        }
-        case CREATE_EFFECT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            effect_descriptor_t desc = {};
-            if (data.read(&desc, sizeof(effect_descriptor_t)) != NO_ERROR) {
-                ALOGE("b/23905951");
-            }
-            sp<IEffectClient> client = interface_cast<IEffectClient>(data.readStrongBinder());
-            int32_t priority = data.readInt32();
-            audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
-            audio_session_t sessionId = (audio_session_t) data.readInt32();
-            const String16 opPackageName = data.readString16();
-            status_t status = NO_ERROR;
-            int id = 0;
-            int enabled = 0;
-
-            sp<IEffect> effect = createEffect(&desc, client, priority, output, sessionId,
-                    opPackageName, &status, &id, &enabled);
-            reply->writeInt32(status);
-            reply->writeInt32(id);
-            reply->writeInt32(enabled);
-            reply->writeStrongBinder(IInterface::asBinder(effect));
-            reply->write(&desc, sizeof(effect_descriptor_t));
-            return NO_ERROR;
-        } break;
-        case MOVE_EFFECTS: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_session_t session = (audio_session_t) data.readInt32();
-            audio_io_handle_t srcOutput = (audio_io_handle_t) data.readInt32();
-            audio_io_handle_t dstOutput = (audio_io_handle_t) data.readInt32();
-            reply->writeInt32(moveEffects(session, srcOutput, dstOutput));
-            return NO_ERROR;
-        } break;
-        case LOAD_HW_MODULE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32(loadHwModule(data.readCString()));
-            return NO_ERROR;
-        } break;
-        case GET_PRIMARY_OUTPUT_SAMPLING_RATE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32(getPrimaryOutputSamplingRate());
-            return NO_ERROR;
-        } break;
-        case GET_PRIMARY_OUTPUT_FRAME_COUNT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt64(getPrimaryOutputFrameCount());
-            return NO_ERROR;
-        } break;
-        case SET_LOW_RAM_DEVICE: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            bool isLowRamDevice = data.readInt32() != 0;
-            reply->writeInt32(setLowRamDevice(isLowRamDevice));
-            return NO_ERROR;
-        } break;
-        case LIST_AUDIO_PORTS: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            unsigned int numPortsReq = data.readInt32();
-            if (numPortsReq > MAX_ITEMS_PER_LIST) {
-                numPortsReq = MAX_ITEMS_PER_LIST;
-            }
-            unsigned int numPorts = numPortsReq;
-            struct audio_port *ports =
-                    (struct audio_port *)calloc(numPortsReq,
-                                                           sizeof(struct audio_port));
-            if (ports == NULL) {
-                reply->writeInt32(NO_MEMORY);
-                reply->writeInt32(0);
-                return NO_ERROR;
-            }
-            status_t status = listAudioPorts(&numPorts, ports);
-            reply->writeInt32(status);
-            reply->writeInt32(numPorts);
-            if (status == NO_ERROR) {
-                if (numPortsReq > numPorts) {
-                    numPortsReq = numPorts;
-                }
-                reply->write(ports, numPortsReq * sizeof(struct audio_port));
-            }
-            free(ports);
-            return NO_ERROR;
-        } break;
-        case GET_AUDIO_PORT: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            struct audio_port port = {};
-            if (data.read(&port, sizeof(struct audio_port)) != NO_ERROR) {
-                ALOGE("b/23905951");
-            }
-            status_t status = getAudioPort(&port);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->write(&port, sizeof(struct audio_port));
-            }
-            return NO_ERROR;
-        } break;
-        case CREATE_AUDIO_PATCH: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            struct audio_patch patch;
-            data.read(&patch, sizeof(struct audio_patch));
-            audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE;
-            if (data.read(&handle, sizeof(audio_patch_handle_t)) != NO_ERROR) {
-                ALOGE("b/23905951");
-            }
-            status_t status = createAudioPatch(&patch, &handle);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->write(&handle, sizeof(audio_patch_handle_t));
-            }
-            return NO_ERROR;
-        } break;
-        case RELEASE_AUDIO_PATCH: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            audio_patch_handle_t handle;
-            data.read(&handle, sizeof(audio_patch_handle_t));
-            status_t status = releaseAudioPatch(handle);
-            reply->writeInt32(status);
-            return NO_ERROR;
-        } break;
-        case LIST_AUDIO_PATCHES: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            unsigned int numPatchesReq = data.readInt32();
-            if (numPatchesReq > MAX_ITEMS_PER_LIST) {
-                numPatchesReq = MAX_ITEMS_PER_LIST;
-            }
-            unsigned int numPatches = numPatchesReq;
-            struct audio_patch *patches =
-                    (struct audio_patch *)calloc(numPatchesReq,
-                                                 sizeof(struct audio_patch));
-            if (patches == NULL) {
-                reply->writeInt32(NO_MEMORY);
-                reply->writeInt32(0);
-                return NO_ERROR;
-            }
-            status_t status = listAudioPatches(&numPatches, patches);
-            reply->writeInt32(status);
-            reply->writeInt32(numPatches);
-            if (status == NO_ERROR) {
-                if (numPatchesReq > numPatches) {
-                    numPatchesReq = numPatches;
-                }
-                reply->write(patches, numPatchesReq * sizeof(struct audio_patch));
-            }
-            free(patches);
-            return NO_ERROR;
-        } break;
-        case SET_AUDIO_PORT_CONFIG: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            struct audio_port_config config;
-            data.read(&config, sizeof(struct audio_port_config));
-            status_t status = setAudioPortConfig(&config);
-            reply->writeInt32(status);
-            return NO_ERROR;
-        } break;
-        case GET_AUDIO_HW_SYNC: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt32(getAudioHwSyncForSession((audio_session_t) data.readInt32()));
-            return NO_ERROR;
-        } break;
-        case SYSTEM_READY: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            systemReady();
-            return NO_ERROR;
-        } break;
-        case FRAME_COUNT_HAL: {
-            CHECK_INTERFACE(IAudioFlinger, data, reply);
-            reply->writeInt64( frameCountHAL((audio_io_handle_t) data.readInt32()) );
-            return NO_ERROR;
-        } break;
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/media/libmedia/IAudioFlingerClient.cpp b/media/libmedia/IAudioFlingerClient.cpp
deleted file mode 100644
index 8dca9e9..0000000
--- a/media/libmedia/IAudioFlingerClient.cpp
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "IAudioFlingerClient"
-#include <utils/Log.h>
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <binder/Parcel.h>
-
-#include <media/IAudioFlingerClient.h>
-#include <media/AudioSystem.h>
-
-namespace android {
-
-enum {
-    IO_CONFIG_CHANGED = IBinder::FIRST_CALL_TRANSACTION
-};
-
-class BpAudioFlingerClient : public BpInterface<IAudioFlingerClient>
-{
-public:
-    BpAudioFlingerClient(const sp<IBinder>& impl)
-        : BpInterface<IAudioFlingerClient>(impl)
-    {
-    }
-
-    void ioConfigChanged(audio_io_config_event event, const sp<AudioIoDescriptor>& ioDesc)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioFlingerClient::getInterfaceDescriptor());
-        data.writeInt32(event);
-        data.writeInt32((int32_t)ioDesc->mIoHandle);
-        data.write(&ioDesc->mPatch, sizeof(struct audio_patch));
-        data.writeInt32(ioDesc->mSamplingRate);
-        data.writeInt32(ioDesc->mFormat);
-        data.writeInt32(ioDesc->mChannelMask);
-        data.writeInt64(ioDesc->mFrameCount);
-        data.writeInt64(ioDesc->mFrameCountHAL);
-        data.writeInt32(ioDesc->mLatency);
-        remote()->transact(IO_CONFIG_CHANGED, data, &reply, IBinder::FLAG_ONEWAY);
-    }
-};
-
-IMPLEMENT_META_INTERFACE(AudioFlingerClient, "android.media.IAudioFlingerClient");
-
-// ----------------------------------------------------------------------
-
-status_t BnAudioFlingerClient::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-    case IO_CONFIG_CHANGED: {
-            CHECK_INTERFACE(IAudioFlingerClient, data, reply);
-            audio_io_config_event event = (audio_io_config_event)data.readInt32();
-            sp<AudioIoDescriptor> ioDesc = new AudioIoDescriptor();
-            ioDesc->mIoHandle = (audio_io_handle_t) data.readInt32();
-            data.read(&ioDesc->mPatch, sizeof(struct audio_patch));
-            ioDesc->mSamplingRate = data.readInt32();
-            ioDesc->mFormat = (audio_format_t) data.readInt32();
-            ioDesc->mChannelMask = (audio_channel_mask_t) data.readInt32();
-            ioDesc->mFrameCount = data.readInt64();
-            ioDesc->mFrameCountHAL = data.readInt64();
-            ioDesc->mLatency = data.readInt32();
-            ioConfigChanged(event, ioDesc);
-            return NO_ERROR;
-        } break;
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/media/libmedia/IAudioPolicyService.cpp b/media/libmedia/IAudioPolicyService.cpp
deleted file mode 100644
index 6405d6d..0000000
--- a/media/libmedia/IAudioPolicyService.cpp
+++ /dev/null
@@ -1,1376 +0,0 @@
-/*
-**
-** Copyright 2009, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#define LOG_TAG "IAudioPolicyService"
-#include <utils/Log.h>
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <binder/Parcel.h>
-
-#include <media/AudioEffect.h>
-#include <media/IAudioPolicyService.h>
-
-#include <system/audio.h>
-
-namespace android {
-
-enum {
-    SET_DEVICE_CONNECTION_STATE = IBinder::FIRST_CALL_TRANSACTION,
-    GET_DEVICE_CONNECTION_STATE,
-    SET_PHONE_STATE,
-    SET_RINGER_MODE,    // reserved, no longer used
-    SET_FORCE_USE,
-    GET_FORCE_USE,
-    GET_OUTPUT,
-    START_OUTPUT,
-    STOP_OUTPUT,
-    RELEASE_OUTPUT,
-    GET_INPUT_FOR_ATTR,
-    START_INPUT,
-    STOP_INPUT,
-    RELEASE_INPUT,
-    INIT_STREAM_VOLUME,
-    SET_STREAM_VOLUME,
-    GET_STREAM_VOLUME,
-    GET_STRATEGY_FOR_STREAM,
-    GET_OUTPUT_FOR_EFFECT,
-    REGISTER_EFFECT,
-    UNREGISTER_EFFECT,
-    IS_STREAM_ACTIVE,
-    IS_SOURCE_ACTIVE,
-    GET_DEVICES_FOR_STREAM,
-    QUERY_DEFAULT_PRE_PROCESSING,
-    SET_EFFECT_ENABLED,
-    IS_STREAM_ACTIVE_REMOTELY,
-    IS_OFFLOAD_SUPPORTED,
-    LIST_AUDIO_PORTS,
-    GET_AUDIO_PORT,
-    CREATE_AUDIO_PATCH,
-    RELEASE_AUDIO_PATCH,
-    LIST_AUDIO_PATCHES,
-    SET_AUDIO_PORT_CONFIG,
-    REGISTER_CLIENT,
-    GET_OUTPUT_FOR_ATTR,
-    ACQUIRE_SOUNDTRIGGER_SESSION,
-    RELEASE_SOUNDTRIGGER_SESSION,
-    GET_PHONE_STATE,
-    REGISTER_POLICY_MIXES,
-    START_AUDIO_SOURCE,
-    STOP_AUDIO_SOURCE,
-    SET_AUDIO_PORT_CALLBACK_ENABLED,
-    SET_MASTER_MONO,
-    GET_MASTER_MONO,
-};
-
-#define MAX_ITEMS_PER_LIST 1024
-
-class BpAudioPolicyService : public BpInterface<IAudioPolicyService>
-{
-public:
-    BpAudioPolicyService(const sp<IBinder>& impl)
-        : BpInterface<IAudioPolicyService>(impl)
-    {
-    }
-
-    virtual status_t setDeviceConnectionState(
-                                    audio_devices_t device,
-                                    audio_policy_dev_state_t state,
-                                    const char *device_address,
-                                    const char *device_name)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(static_cast <uint32_t>(device));
-        data.writeInt32(static_cast <uint32_t>(state));
-        data.writeCString(device_address);
-        data.writeCString(device_name);
-        remote()->transact(SET_DEVICE_CONNECTION_STATE, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual audio_policy_dev_state_t getDeviceConnectionState(
-                                    audio_devices_t device,
-                                    const char *device_address)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(static_cast <uint32_t>(device));
-        data.writeCString(device_address);
-        remote()->transact(GET_DEVICE_CONNECTION_STATE, data, &reply);
-        return static_cast <audio_policy_dev_state_t>(reply.readInt32());
-    }
-
-    virtual status_t setPhoneState(audio_mode_t state)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(state);
-        remote()->transact(SET_PHONE_STATE, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(static_cast <uint32_t>(usage));
-        data.writeInt32(static_cast <uint32_t>(config));
-        remote()->transact(SET_FORCE_USE, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(static_cast <uint32_t>(usage));
-        remote()->transact(GET_FORCE_USE, data, &reply);
-        return static_cast <audio_policy_forced_cfg_t> (reply.readInt32());
-    }
-
-    virtual audio_io_handle_t getOutput(
-                                        audio_stream_type_t stream,
-                                        uint32_t samplingRate,
-                                        audio_format_t format,
-                                        audio_channel_mask_t channelMask,
-                                        audio_output_flags_t flags,
-                                        const audio_offload_info_t *offloadInfo)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(static_cast <uint32_t>(stream));
-        data.writeInt32(samplingRate);
-        data.writeInt32(static_cast <uint32_t>(format));
-        data.writeInt32(channelMask);
-        data.writeInt32(static_cast <uint32_t>(flags));
-        // hasOffloadInfo
-        if (offloadInfo == NULL) {
-            data.writeInt32(0);
-        } else {
-            data.writeInt32(1);
-            data.write(offloadInfo, sizeof(audio_offload_info_t));
-        }
-        remote()->transact(GET_OUTPUT, data, &reply);
-        return static_cast <audio_io_handle_t> (reply.readInt32());
-    }
-
-    virtual status_t getOutputForAttr(const audio_attributes_t *attr,
-                                        audio_io_handle_t *output,
-                                        audio_session_t session,
-                                        audio_stream_type_t *stream,
-                                        uid_t uid,
-                                        uint32_t samplingRate,
-                                        audio_format_t format,
-                                        audio_channel_mask_t channelMask,
-                                        audio_output_flags_t flags,
-                                        audio_port_handle_t selectedDeviceId,
-                                        const audio_offload_info_t *offloadInfo)
-        {
-            Parcel data, reply;
-            data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-            if (attr == NULL) {
-                if (stream == NULL) {
-                    ALOGE("getOutputForAttr(): NULL audio attributes and stream type");
-                    return BAD_VALUE;
-                }
-                if (*stream == AUDIO_STREAM_DEFAULT) {
-                    ALOGE("getOutputForAttr unspecified stream type");
-                    return BAD_VALUE;
-                }
-            }
-            if (output == NULL) {
-                ALOGE("getOutputForAttr NULL output - shouldn't happen");
-                return BAD_VALUE;
-            }
-            if (attr == NULL) {
-                data.writeInt32(0);
-            } else {
-                data.writeInt32(1);
-                data.write(attr, sizeof(audio_attributes_t));
-            }
-            data.writeInt32(session);
-            if (stream == NULL) {
-                data.writeInt32(0);
-            } else {
-                data.writeInt32(1);
-                data.writeInt32(*stream);
-            }
-            data.writeInt32(uid);
-            data.writeInt32(samplingRate);
-            data.writeInt32(static_cast <uint32_t>(format));
-            data.writeInt32(channelMask);
-            data.writeInt32(static_cast <uint32_t>(flags));
-            data.writeInt32(selectedDeviceId);
-            // hasOffloadInfo
-            if (offloadInfo == NULL) {
-                data.writeInt32(0);
-            } else {
-                data.writeInt32(1);
-                data.write(offloadInfo, sizeof(audio_offload_info_t));
-            }
-            status_t status = remote()->transact(GET_OUTPUT_FOR_ATTR, data, &reply);
-            if (status != NO_ERROR) {
-                return status;
-            }
-            status = (status_t)reply.readInt32();
-            if (status != NO_ERROR) {
-                return status;
-            }
-            *output = (audio_io_handle_t)reply.readInt32();
-            if (stream != NULL) {
-                *stream = (audio_stream_type_t)reply.readInt32();
-            }
-            return status;
-        }
-
-    virtual status_t startOutput(audio_io_handle_t output,
-                                 audio_stream_type_t stream,
-                                 audio_session_t session)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(output);
-        data.writeInt32((int32_t) stream);
-        data.writeInt32((int32_t) session);
-        remote()->transact(START_OUTPUT, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual status_t stopOutput(audio_io_handle_t output,
-                                audio_stream_type_t stream,
-                                audio_session_t session)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(output);
-        data.writeInt32((int32_t) stream);
-        data.writeInt32((int32_t) session);
-        remote()->transact(STOP_OUTPUT, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual void releaseOutput(audio_io_handle_t output,
-                               audio_stream_type_t stream,
-                               audio_session_t session)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(output);
-        data.writeInt32((int32_t)stream);
-        data.writeInt32((int32_t)session);
-        remote()->transact(RELEASE_OUTPUT, data, &reply);
-    }
-
-    virtual status_t getInputForAttr(const audio_attributes_t *attr,
-                                     audio_io_handle_t *input,
-                                     audio_session_t session,
-                                     pid_t pid,
-                                     uid_t uid,
-                                     uint32_t samplingRate,
-                                     audio_format_t format,
-                                     audio_channel_mask_t channelMask,
-                                     audio_input_flags_t flags,
-                                     audio_port_handle_t selectedDeviceId)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        if (attr == NULL) {
-            ALOGE("getInputForAttr NULL attr - shouldn't happen");
-            return BAD_VALUE;
-        }
-        if (input == NULL) {
-            ALOGE("getInputForAttr NULL input - shouldn't happen");
-            return BAD_VALUE;
-        }
-        data.write(attr, sizeof(audio_attributes_t));
-        data.writeInt32(session);
-        data.writeInt32(pid);
-        data.writeInt32(uid);
-        data.writeInt32(samplingRate);
-        data.writeInt32(static_cast <uint32_t>(format));
-        data.writeInt32(channelMask);
-        data.writeInt32(flags);
-        data.writeInt32(selectedDeviceId);
-        status_t status = remote()->transact(GET_INPUT_FOR_ATTR, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        status = reply.readInt32();
-        if (status != NO_ERROR) {
-            return status;
-        }
-        *input = (audio_io_handle_t)reply.readInt32();
-        return NO_ERROR;
-    }
-
-    virtual status_t startInput(audio_io_handle_t input,
-                                audio_session_t session)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(input);
-        data.writeInt32(session);
-        remote()->transact(START_INPUT, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual status_t stopInput(audio_io_handle_t input,
-                               audio_session_t session)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(input);
-        data.writeInt32(session);
-        remote()->transact(STOP_INPUT, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual void releaseInput(audio_io_handle_t input,
-                              audio_session_t session)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(input);
-        data.writeInt32(session);
-        remote()->transact(RELEASE_INPUT, data, &reply);
-    }
-
-    virtual status_t initStreamVolume(audio_stream_type_t stream,
-                                    int indexMin,
-                                    int indexMax)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(static_cast <uint32_t>(stream));
-        data.writeInt32(indexMin);
-        data.writeInt32(indexMax);
-        remote()->transact(INIT_STREAM_VOLUME, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
-                                          int index,
-                                          audio_devices_t device)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(static_cast <uint32_t>(stream));
-        data.writeInt32(index);
-        data.writeInt32(static_cast <uint32_t>(device));
-        remote()->transact(SET_STREAM_VOLUME, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual status_t getStreamVolumeIndex(audio_stream_type_t stream,
-                                          int *index,
-                                          audio_devices_t device)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(static_cast <uint32_t>(stream));
-        data.writeInt32(static_cast <uint32_t>(device));
-
-        remote()->transact(GET_STREAM_VOLUME, data, &reply);
-        int lIndex = reply.readInt32();
-        if (index) *index = lIndex;
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual uint32_t getStrategyForStream(audio_stream_type_t stream)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(static_cast <uint32_t>(stream));
-        remote()->transact(GET_STRATEGY_FOR_STREAM, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(static_cast <uint32_t>(stream));
-        remote()->transact(GET_DEVICES_FOR_STREAM, data, &reply);
-        return (audio_devices_t) reply.readInt32();
-    }
-
-    virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.write(desc, sizeof(effect_descriptor_t));
-        remote()->transact(GET_OUTPUT_FOR_EFFECT, data, &reply);
-        return static_cast <audio_io_handle_t> (reply.readInt32());
-    }
-
-    virtual status_t registerEffect(const effect_descriptor_t *desc,
-                                        audio_io_handle_t io,
-                                        uint32_t strategy,
-                                        audio_session_t session,
-                                        int id)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.write(desc, sizeof(effect_descriptor_t));
-        data.writeInt32(io);
-        data.writeInt32(strategy);
-        data.writeInt32(session);
-        data.writeInt32(id);
-        remote()->transact(REGISTER_EFFECT, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual status_t unregisterEffect(int id)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(id);
-        remote()->transact(UNREGISTER_EFFECT, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual status_t setEffectEnabled(int id, bool enabled)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(id);
-        data.writeInt32(enabled);
-        remote()->transact(SET_EFFECT_ENABLED, data, &reply);
-        return static_cast <status_t> (reply.readInt32());
-    }
-
-    virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32((int32_t) stream);
-        data.writeInt32(inPastMs);
-        remote()->transact(IS_STREAM_ACTIVE, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32((int32_t) stream);
-        data.writeInt32(inPastMs);
-        remote()->transact(IS_STREAM_ACTIVE_REMOTELY, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual bool isSourceActive(audio_source_t source) const
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32((int32_t) source);
-        remote()->transact(IS_SOURCE_ACTIVE, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
-                                               effect_descriptor_t *descriptors,
-                                               uint32_t *count)
-    {
-        if (descriptors == NULL || count == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(audioSession);
-        data.writeInt32(*count);
-        status_t status = remote()->transact(QUERY_DEFAULT_PRE_PROCESSING, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        status = static_cast <status_t> (reply.readInt32());
-        uint32_t retCount = reply.readInt32();
-        if (retCount != 0) {
-            uint32_t numDesc = (retCount < *count) ? retCount : *count;
-            reply.read(descriptors, sizeof(effect_descriptor_t) * numDesc);
-        }
-        *count = retCount;
-        return status;
-    }
-
-    virtual bool isOffloadSupported(const audio_offload_info_t& info)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.write(&info, sizeof(audio_offload_info_t));
-        remote()->transact(IS_OFFLOAD_SUPPORTED, data, &reply);
-        return reply.readInt32();
-    }
-
-    virtual status_t listAudioPorts(audio_port_role_t role,
-                                    audio_port_type_t type,
-                                    unsigned int *num_ports,
-                                    struct audio_port *ports,
-                                    unsigned int *generation)
-    {
-        if (num_ports == NULL || (*num_ports != 0 && ports == NULL) ||
-                generation == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        unsigned int numPortsReq = (ports == NULL) ? 0 : *num_ports;
-        data.writeInt32(role);
-        data.writeInt32(type);
-        data.writeInt32(numPortsReq);
-        status_t status = remote()->transact(LIST_AUDIO_PORTS, data, &reply);
-        if (status == NO_ERROR) {
-            status = (status_t)reply.readInt32();
-            *num_ports = (unsigned int)reply.readInt32();
-        }
-        if (status == NO_ERROR) {
-            if (numPortsReq > *num_ports) {
-                numPortsReq = *num_ports;
-            }
-            if (numPortsReq > 0) {
-                reply.read(ports, numPortsReq * sizeof(struct audio_port));
-            }
-            *generation = reply.readInt32();
-        }
-        return status;
-    }
-
-    virtual status_t getAudioPort(struct audio_port *port)
-    {
-        if (port == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.write(port, sizeof(struct audio_port));
-        status_t status = remote()->transact(GET_AUDIO_PORT, data, &reply);
-        if (status != NO_ERROR ||
-                (status = (status_t)reply.readInt32()) != NO_ERROR) {
-            return status;
-        }
-        reply.read(port, sizeof(struct audio_port));
-        return status;
-    }
-
-    virtual status_t createAudioPatch(const struct audio_patch *patch,
-                                       audio_patch_handle_t *handle)
-    {
-        if (patch == NULL || handle == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.write(patch, sizeof(struct audio_patch));
-        data.write(handle, sizeof(audio_patch_handle_t));
-        status_t status = remote()->transact(CREATE_AUDIO_PATCH, data, &reply);
-        if (status != NO_ERROR ||
-                (status = (status_t)reply.readInt32()) != NO_ERROR) {
-            return status;
-        }
-        reply.read(handle, sizeof(audio_patch_handle_t));
-        return status;
-    }
-
-    virtual status_t releaseAudioPatch(audio_patch_handle_t handle)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.write(&handle, sizeof(audio_patch_handle_t));
-        status_t status = remote()->transact(RELEASE_AUDIO_PATCH, data, &reply);
-        if (status != NO_ERROR) {
-            status = (status_t)reply.readInt32();
-        }
-        return status;
-    }
-
-    virtual status_t listAudioPatches(unsigned int *num_patches,
-                                      struct audio_patch *patches,
-                                      unsigned int *generation)
-    {
-        if (num_patches == NULL || (*num_patches != 0 && patches == NULL) ||
-                generation == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        unsigned int numPatchesReq = (patches == NULL) ? 0 : *num_patches;
-        data.writeInt32(numPatchesReq);
-        status_t status = remote()->transact(LIST_AUDIO_PATCHES, data, &reply);
-        if (status == NO_ERROR) {
-            status = (status_t)reply.readInt32();
-            *num_patches = (unsigned int)reply.readInt32();
-        }
-        if (status == NO_ERROR) {
-            if (numPatchesReq > *num_patches) {
-                numPatchesReq = *num_patches;
-            }
-            if (numPatchesReq > 0) {
-                reply.read(patches, numPatchesReq * sizeof(struct audio_patch));
-            }
-            *generation = reply.readInt32();
-        }
-        return status;
-    }
-
-    virtual status_t setAudioPortConfig(const struct audio_port_config *config)
-    {
-        if (config == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.write(config, sizeof(struct audio_port_config));
-        status_t status = remote()->transact(SET_AUDIO_PORT_CONFIG, data, &reply);
-        if (status != NO_ERROR) {
-            status = (status_t)reply.readInt32();
-        }
-        return status;
-    }
-
-    virtual void registerClient(const sp<IAudioPolicyServiceClient>& client)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(client));
-        remote()->transact(REGISTER_CLIENT, data, &reply);
-    }
-
-    virtual void setAudioPortCallbacksEnabled(bool enabled)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(enabled ? 1 : 0);
-        remote()->transact(SET_AUDIO_PORT_CALLBACK_ENABLED, data, &reply);
-    }
-
-    virtual status_t acquireSoundTriggerSession(audio_session_t *session,
-                                            audio_io_handle_t *ioHandle,
-                                            audio_devices_t *device)
-    {
-        if (session == NULL || ioHandle == NULL || device == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        status_t status = remote()->transact(ACQUIRE_SOUNDTRIGGER_SESSION, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        status = (status_t)reply.readInt32();
-        if (status == NO_ERROR) {
-            *session = (audio_session_t)reply.readInt32();
-            *ioHandle = (audio_io_handle_t)reply.readInt32();
-            *device = (audio_devices_t)reply.readInt32();
-        }
-        return status;
-    }
-
-    virtual status_t releaseSoundTriggerSession(audio_session_t session)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(session);
-        status_t status = remote()->transact(RELEASE_SOUNDTRIGGER_SESSION, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        return (status_t)reply.readInt32();
-    }
-
-    virtual audio_mode_t getPhoneState()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        status_t status = remote()->transact(GET_PHONE_STATE, data, &reply);
-        if (status != NO_ERROR) {
-            return AUDIO_MODE_INVALID;
-        }
-        return (audio_mode_t)reply.readInt32();
-    }
-
-    virtual status_t registerPolicyMixes(Vector<AudioMix> mixes, bool registration)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(registration ? 1 : 0);
-        size_t size = mixes.size();
-        if (size > MAX_MIXES_PER_POLICY) {
-            size = MAX_MIXES_PER_POLICY;
-        }
-        size_t sizePosition = data.dataPosition();
-        data.writeInt32(size);
-        size_t finalSize = size;
-        for (size_t i = 0; i < size; i++) {
-            size_t position = data.dataPosition();
-            if (mixes[i].writeToParcel(&data) != NO_ERROR) {
-                data.setDataPosition(position);
-                finalSize--;
-            }
-        }
-        if (size != finalSize) {
-            size_t position = data.dataPosition();
-            data.setDataPosition(sizePosition);
-            data.writeInt32(finalSize);
-            data.setDataPosition(position);
-        }
-        status_t status = remote()->transact(REGISTER_POLICY_MIXES, data, &reply);
-        if (status == NO_ERROR) {
-            status = (status_t)reply.readInt32();
-        }
-        return status;
-    }
-
-    virtual status_t startAudioSource(const struct audio_port_config *source,
-                                      const audio_attributes_t *attributes,
-                                      audio_io_handle_t *handle)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        if (source == NULL || attributes == NULL || handle == NULL) {
-            return BAD_VALUE;
-        }
-        data.write(source, sizeof(struct audio_port_config));
-        data.write(attributes, sizeof(audio_attributes_t));
-        status_t status = remote()->transact(START_AUDIO_SOURCE, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        status = (status_t)reply.readInt32();
-        if (status != NO_ERROR) {
-            return status;
-        }
-        *handle = (audio_io_handle_t)reply.readInt32();
-        return status;
-    }
-
-    virtual status_t stopAudioSource(audio_io_handle_t handle)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(handle);
-        status_t status = remote()->transact(STOP_AUDIO_SOURCE, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        status = (status_t)reply.readInt32();
-        return status;
-    }
-
-    virtual status_t setMasterMono(bool mono)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(static_cast<int32_t>(mono));
-        status_t status = remote()->transact(SET_MASTER_MONO, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        return static_cast<status_t>(reply.readInt32());
-    }
-
-    virtual status_t getMasterMono(bool *mono)
-    {
-        if (mono == nullptr) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-
-        status_t status = remote()->transact(GET_MASTER_MONO, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        status = static_cast<status_t>(reply.readInt32());
-        if (status == NO_ERROR) {
-            *mono = static_cast<bool>(reply.readInt32());
-        }
-        return status;
-    }
-};
-
-IMPLEMENT_META_INTERFACE(AudioPolicyService, "android.media.IAudioPolicyService");
-
-// ----------------------------------------------------------------------
-
-
-status_t BnAudioPolicyService::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-        case SET_DEVICE_CONNECTION_STATE: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_devices_t device =
-                    static_cast <audio_devices_t>(data.readInt32());
-            audio_policy_dev_state_t state =
-                    static_cast <audio_policy_dev_state_t>(data.readInt32());
-            const char *device_address = data.readCString();
-            const char *device_name = data.readCString();
-            reply->writeInt32(static_cast<uint32_t> (setDeviceConnectionState(device,
-                                                                              state,
-                                                                              device_address,
-                                                                              device_name)));
-            return NO_ERROR;
-        } break;
-
-        case GET_DEVICE_CONNECTION_STATE: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_devices_t device =
-                    static_cast<audio_devices_t> (data.readInt32());
-            const char *device_address = data.readCString();
-            reply->writeInt32(static_cast<uint32_t> (getDeviceConnectionState(device,
-                                                                              device_address)));
-            return NO_ERROR;
-        } break;
-
-        case SET_PHONE_STATE: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            reply->writeInt32(static_cast <uint32_t>(setPhoneState(
-                    (audio_mode_t) data.readInt32())));
-            return NO_ERROR;
-        } break;
-
-        case SET_FORCE_USE: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_policy_force_use_t usage = static_cast <audio_policy_force_use_t>(
-                    data.readInt32());
-            audio_policy_forced_cfg_t config =
-                    static_cast <audio_policy_forced_cfg_t>(data.readInt32());
-            reply->writeInt32(static_cast <uint32_t>(setForceUse(usage, config)));
-            return NO_ERROR;
-        } break;
-
-        case GET_FORCE_USE: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_policy_force_use_t usage = static_cast <audio_policy_force_use_t>(
-                    data.readInt32());
-            reply->writeInt32(static_cast <uint32_t>(getForceUse(usage)));
-            return NO_ERROR;
-        } break;
-
-        case GET_OUTPUT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_stream_type_t stream =
-                    static_cast <audio_stream_type_t>(data.readInt32());
-            uint32_t samplingRate = data.readInt32();
-            audio_format_t format = (audio_format_t) data.readInt32();
-            audio_channel_mask_t channelMask = data.readInt32();
-            audio_output_flags_t flags =
-                    static_cast <audio_output_flags_t>(data.readInt32());
-            bool hasOffloadInfo = data.readInt32() != 0;
-            audio_offload_info_t offloadInfo;
-            if (hasOffloadInfo) {
-                data.read(&offloadInfo, sizeof(audio_offload_info_t));
-            }
-            audio_io_handle_t output = getOutput(stream,
-                                                 samplingRate,
-                                                 format,
-                                                 channelMask,
-                                                 flags,
-                                                 hasOffloadInfo ? &offloadInfo : NULL);
-            reply->writeInt32(static_cast <int>(output));
-            return NO_ERROR;
-        } break;
-
-        case GET_OUTPUT_FOR_ATTR: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_attributes_t attr;
-            bool hasAttributes = data.readInt32() != 0;
-            if (hasAttributes) {
-                data.read(&attr, sizeof(audio_attributes_t));
-            }
-            audio_session_t session = (audio_session_t)data.readInt32();
-            audio_stream_type_t stream = AUDIO_STREAM_DEFAULT;
-            bool hasStream = data.readInt32() != 0;
-            if (hasStream) {
-                stream = (audio_stream_type_t)data.readInt32();
-            }
-            uid_t uid = (uid_t)data.readInt32();
-            uint32_t samplingRate = data.readInt32();
-            audio_format_t format = (audio_format_t) data.readInt32();
-            audio_channel_mask_t channelMask = data.readInt32();
-            audio_output_flags_t flags =
-                    static_cast <audio_output_flags_t>(data.readInt32());
-            audio_port_handle_t selectedDeviceId = data.readInt32();
-            bool hasOffloadInfo = data.readInt32() != 0;
-            audio_offload_info_t offloadInfo;
-            if (hasOffloadInfo) {
-                data.read(&offloadInfo, sizeof(audio_offload_info_t));
-            }
-            audio_io_handle_t output = 0;
-            status_t status = getOutputForAttr(hasAttributes ? &attr : NULL,
-                    &output, session, &stream, uid,
-                    samplingRate, format, channelMask,
-                    flags, selectedDeviceId, hasOffloadInfo ? &offloadInfo : NULL);
-            reply->writeInt32(status);
-            reply->writeInt32(output);
-            reply->writeInt32(stream);
-            return NO_ERROR;
-        } break;
-
-        case START_OUTPUT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
-            audio_stream_type_t stream =
-                                static_cast <audio_stream_type_t>(data.readInt32());
-            audio_session_t session = (audio_session_t)data.readInt32();
-            reply->writeInt32(static_cast <uint32_t>(startOutput(output,
-                                                                 stream,
-                                                                 session)));
-            return NO_ERROR;
-        } break;
-
-        case STOP_OUTPUT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
-            audio_stream_type_t stream =
-                                static_cast <audio_stream_type_t>(data.readInt32());
-            audio_session_t session = (audio_session_t)data.readInt32();
-            reply->writeInt32(static_cast <uint32_t>(stopOutput(output,
-                                                                stream,
-                                                                session)));
-            return NO_ERROR;
-        } break;
-
-        case RELEASE_OUTPUT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
-            audio_stream_type_t stream = (audio_stream_type_t)data.readInt32();
-            audio_session_t session = (audio_session_t)data.readInt32();
-            releaseOutput(output, stream, session);
-            return NO_ERROR;
-        } break;
-
-        case GET_INPUT_FOR_ATTR: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_attributes_t attr;
-            data.read(&attr, sizeof(audio_attributes_t));
-            audio_session_t session = (audio_session_t)data.readInt32();
-            pid_t pid = (pid_t)data.readInt32();
-            uid_t uid = (uid_t)data.readInt32();
-            uint32_t samplingRate = data.readInt32();
-            audio_format_t format = (audio_format_t) data.readInt32();
-            audio_channel_mask_t channelMask = data.readInt32();
-            audio_input_flags_t flags = (audio_input_flags_t) data.readInt32();
-            audio_port_handle_t selectedDeviceId = (audio_port_handle_t) data.readInt32();
-            audio_io_handle_t input = AUDIO_IO_HANDLE_NONE;
-            status_t status = getInputForAttr(&attr, &input, session, pid, uid,
-                                              samplingRate, format, channelMask,
-                                              flags, selectedDeviceId);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->writeInt32(input);
-            }
-            return NO_ERROR;
-        } break;
-
-        case START_INPUT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
-            audio_session_t session = static_cast <audio_session_t>(data.readInt32());
-            reply->writeInt32(static_cast <uint32_t>(startInput(input, session)));
-            return NO_ERROR;
-        } break;
-
-        case STOP_INPUT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
-            audio_session_t session = static_cast <audio_session_t>(data.readInt32());
-            reply->writeInt32(static_cast <uint32_t>(stopInput(input, session)));
-            return NO_ERROR;
-        } break;
-
-        case RELEASE_INPUT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
-            audio_session_t session = static_cast <audio_session_t>(data.readInt32());
-            releaseInput(input, session);
-            return NO_ERROR;
-        } break;
-
-        case INIT_STREAM_VOLUME: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_stream_type_t stream =
-                    static_cast <audio_stream_type_t>(data.readInt32());
-            int indexMin = data.readInt32();
-            int indexMax = data.readInt32();
-            reply->writeInt32(static_cast <uint32_t>(initStreamVolume(stream, indexMin,indexMax)));
-            return NO_ERROR;
-        } break;
-
-        case SET_STREAM_VOLUME: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_stream_type_t stream =
-                    static_cast <audio_stream_type_t>(data.readInt32());
-            int index = data.readInt32();
-            audio_devices_t device = static_cast <audio_devices_t>(data.readInt32());
-            reply->writeInt32(static_cast <uint32_t>(setStreamVolumeIndex(stream,
-                                                                          index,
-                                                                          device)));
-            return NO_ERROR;
-        } break;
-
-        case GET_STREAM_VOLUME: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_stream_type_t stream =
-                    static_cast <audio_stream_type_t>(data.readInt32());
-            audio_devices_t device = static_cast <audio_devices_t>(data.readInt32());
-            int index = 0;
-            status_t status = getStreamVolumeIndex(stream, &index, device);
-            reply->writeInt32(index);
-            reply->writeInt32(static_cast <uint32_t>(status));
-            return NO_ERROR;
-        } break;
-
-        case GET_STRATEGY_FOR_STREAM: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_stream_type_t stream =
-                    static_cast <audio_stream_type_t>(data.readInt32());
-            reply->writeInt32(getStrategyForStream(stream));
-            return NO_ERROR;
-        } break;
-
-        case GET_DEVICES_FOR_STREAM: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_stream_type_t stream =
-                    static_cast <audio_stream_type_t>(data.readInt32());
-            reply->writeInt32(static_cast <int>(getDevicesForStream(stream)));
-            return NO_ERROR;
-        } break;
-
-        case GET_OUTPUT_FOR_EFFECT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            effect_descriptor_t desc;
-            data.read(&desc, sizeof(effect_descriptor_t));
-            audio_io_handle_t output = getOutputForEffect(&desc);
-            reply->writeInt32(static_cast <int>(output));
-            return NO_ERROR;
-        } break;
-
-        case REGISTER_EFFECT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            effect_descriptor_t desc;
-            data.read(&desc, sizeof(effect_descriptor_t));
-            audio_io_handle_t io = data.readInt32();
-            uint32_t strategy = data.readInt32();
-            audio_session_t session = (audio_session_t) data.readInt32();
-            int id = data.readInt32();
-            reply->writeInt32(static_cast <int32_t>(registerEffect(&desc,
-                                                                   io,
-                                                                   strategy,
-                                                                   session,
-                                                                   id)));
-            return NO_ERROR;
-        } break;
-
-        case UNREGISTER_EFFECT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            int id = data.readInt32();
-            reply->writeInt32(static_cast <int32_t>(unregisterEffect(id)));
-            return NO_ERROR;
-        } break;
-
-        case SET_EFFECT_ENABLED: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            int id = data.readInt32();
-            bool enabled = static_cast <bool>(data.readInt32());
-            reply->writeInt32(static_cast <int32_t>(setEffectEnabled(id, enabled)));
-            return NO_ERROR;
-        } break;
-
-        case IS_STREAM_ACTIVE: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_stream_type_t stream = (audio_stream_type_t) data.readInt32();
-            uint32_t inPastMs = (uint32_t)data.readInt32();
-            reply->writeInt32( isStreamActive(stream, inPastMs) );
-            return NO_ERROR;
-        } break;
-
-        case IS_STREAM_ACTIVE_REMOTELY: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_stream_type_t stream = (audio_stream_type_t) data.readInt32();
-            uint32_t inPastMs = (uint32_t)data.readInt32();
-            reply->writeInt32( isStreamActiveRemotely(stream, inPastMs) );
-            return NO_ERROR;
-        } break;
-
-        case IS_SOURCE_ACTIVE: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_source_t source = (audio_source_t) data.readInt32();
-            reply->writeInt32( isSourceActive(source));
-            return NO_ERROR;
-        }
-
-        case QUERY_DEFAULT_PRE_PROCESSING: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_session_t audioSession = (audio_session_t) data.readInt32();
-            uint32_t count = data.readInt32();
-            if (count > AudioEffect::kMaxPreProcessing) {
-                count = AudioEffect::kMaxPreProcessing;
-            }
-            uint32_t retCount = count;
-            effect_descriptor_t *descriptors = new effect_descriptor_t[count];
-            status_t status = queryDefaultPreProcessing(audioSession, descriptors, &retCount);
-            reply->writeInt32(status);
-            if (status != NO_ERROR && status != NO_MEMORY) {
-                retCount = 0;
-            }
-            reply->writeInt32(retCount);
-            if (retCount != 0) {
-                if (retCount < count) {
-                    count = retCount;
-                }
-                reply->write(descriptors, sizeof(effect_descriptor_t) * count);
-            }
-            delete[] descriptors;
-            return status;
-        }
-
-        case IS_OFFLOAD_SUPPORTED: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_offload_info_t info;
-            data.read(&info, sizeof(audio_offload_info_t));
-            bool isSupported = isOffloadSupported(info);
-            reply->writeInt32(isSupported);
-            return NO_ERROR;
-        }
-
-        case LIST_AUDIO_PORTS: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_port_role_t role = (audio_port_role_t)data.readInt32();
-            audio_port_type_t type = (audio_port_type_t)data.readInt32();
-            unsigned int numPortsReq = data.readInt32();
-            if (numPortsReq > MAX_ITEMS_PER_LIST) {
-                numPortsReq = MAX_ITEMS_PER_LIST;
-            }
-            unsigned int numPorts = numPortsReq;
-            struct audio_port *ports =
-                    (struct audio_port *)calloc(numPortsReq, sizeof(struct audio_port));
-            if (ports == NULL) {
-                reply->writeInt32(NO_MEMORY);
-                reply->writeInt32(0);
-                return NO_ERROR;
-            }
-            unsigned int generation;
-            status_t status = listAudioPorts(role, type, &numPorts, ports, &generation);
-            reply->writeInt32(status);
-            reply->writeInt32(numPorts);
-
-            if (status == NO_ERROR) {
-                if (numPortsReq > numPorts) {
-                    numPortsReq = numPorts;
-                }
-                reply->write(ports, numPortsReq * sizeof(struct audio_port));
-                reply->writeInt32(generation);
-            }
-            free(ports);
-            return NO_ERROR;
-        }
-
-        case GET_AUDIO_PORT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            struct audio_port port = {};
-            if (data.read(&port, sizeof(struct audio_port)) != NO_ERROR) {
-                ALOGE("b/23912202");
-            }
-            status_t status = getAudioPort(&port);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->write(&port, sizeof(struct audio_port));
-            }
-            return NO_ERROR;
-        }
-
-        case CREATE_AUDIO_PATCH: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            struct audio_patch patch;
-            data.read(&patch, sizeof(struct audio_patch));
-            audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE;
-            if (data.read(&handle, sizeof(audio_patch_handle_t)) != NO_ERROR) {
-                ALOGE("b/23912202");
-            }
-            status_t status = createAudioPatch(&patch, &handle);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->write(&handle, sizeof(audio_patch_handle_t));
-            }
-            return NO_ERROR;
-        }
-
-        case RELEASE_AUDIO_PATCH: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_patch_handle_t handle;
-            data.read(&handle, sizeof(audio_patch_handle_t));
-            status_t status = releaseAudioPatch(handle);
-            reply->writeInt32(status);
-            return NO_ERROR;
-        }
-
-        case LIST_AUDIO_PATCHES: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            unsigned int numPatchesReq = data.readInt32();
-            if (numPatchesReq > MAX_ITEMS_PER_LIST) {
-                numPatchesReq = MAX_ITEMS_PER_LIST;
-            }
-            unsigned int numPatches = numPatchesReq;
-            struct audio_patch *patches =
-                    (struct audio_patch *)calloc(numPatchesReq,
-                                                 sizeof(struct audio_patch));
-            if (patches == NULL) {
-                reply->writeInt32(NO_MEMORY);
-                reply->writeInt32(0);
-                return NO_ERROR;
-            }
-            unsigned int generation;
-            status_t status = listAudioPatches(&numPatches, patches, &generation);
-            reply->writeInt32(status);
-            reply->writeInt32(numPatches);
-            if (status == NO_ERROR) {
-                if (numPatchesReq > numPatches) {
-                    numPatchesReq = numPatches;
-                }
-                reply->write(patches, numPatchesReq * sizeof(struct audio_patch));
-                reply->writeInt32(generation);
-            }
-            free(patches);
-            return NO_ERROR;
-        }
-
-        case SET_AUDIO_PORT_CONFIG: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            struct audio_port_config config;
-            data.read(&config, sizeof(struct audio_port_config));
-            status_t status = setAudioPortConfig(&config);
-            reply->writeInt32(status);
-            return NO_ERROR;
-        }
-
-        case REGISTER_CLIENT: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>(
-                    data.readStrongBinder());
-            registerClient(client);
-            return NO_ERROR;
-        } break;
-
-        case SET_AUDIO_PORT_CALLBACK_ENABLED: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            setAudioPortCallbacksEnabled(data.readInt32() == 1);
-            return NO_ERROR;
-        } break;
-
-        case ACQUIRE_SOUNDTRIGGER_SESSION: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>(
-                    data.readStrongBinder());
-            audio_session_t session = AUDIO_SESSION_NONE;
-            audio_io_handle_t ioHandle = AUDIO_IO_HANDLE_NONE;
-            audio_devices_t device = AUDIO_DEVICE_NONE;
-            status_t status = acquireSoundTriggerSession(&session, &ioHandle, &device);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->writeInt32(session);
-                reply->writeInt32(ioHandle);
-                reply->writeInt32(device);
-            }
-            return NO_ERROR;
-        } break;
-
-        case RELEASE_SOUNDTRIGGER_SESSION: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>(
-                    data.readStrongBinder());
-            audio_session_t session = (audio_session_t)data.readInt32();
-            status_t status = releaseSoundTriggerSession(session);
-            reply->writeInt32(status);
-            return NO_ERROR;
-        } break;
-
-        case GET_PHONE_STATE: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            reply->writeInt32((int32_t)getPhoneState());
-            return NO_ERROR;
-        } break;
-
-        case REGISTER_POLICY_MIXES: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            bool registration = data.readInt32() == 1;
-            Vector<AudioMix> mixes;
-            size_t size = (size_t)data.readInt32();
-            if (size > MAX_MIXES_PER_POLICY) {
-                size = MAX_MIXES_PER_POLICY;
-            }
-            for (size_t i = 0; i < size; i++) {
-                AudioMix mix;
-                if (mix.readFromParcel((Parcel*)&data) == NO_ERROR) {
-                    mixes.add(mix);
-                }
-            }
-            status_t status = registerPolicyMixes(mixes, registration);
-            reply->writeInt32(status);
-            return NO_ERROR;
-        } break;
-
-        case START_AUDIO_SOURCE: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            struct audio_port_config source;
-            data.read(&source, sizeof(struct audio_port_config));
-            audio_attributes_t attributes;
-            data.read(&attributes, sizeof(audio_attributes_t));
-            audio_io_handle_t handle = {};
-            status_t status = startAudioSource(&source, &attributes, &handle);
-            reply->writeInt32(status);
-            reply->writeInt32(handle);
-            return NO_ERROR;
-        } break;
-
-        case STOP_AUDIO_SOURCE: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_io_handle_t handle = (audio_io_handle_t)data.readInt32();
-            status_t status = stopAudioSource(handle);
-            reply->writeInt32(status);
-            return NO_ERROR;
-        } break;
-
-        case SET_MASTER_MONO: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            bool mono = static_cast<bool>(data.readInt32());
-            status_t status = setMasterMono(mono);
-            reply->writeInt32(status);
-            return NO_ERROR;
-        } break;
-
-        case GET_MASTER_MONO: {
-            CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            bool mono;
-            status_t status = getMasterMono(&mono);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->writeInt32(static_cast<int32_t>(mono));
-            }
-            return NO_ERROR;
-        } break;
-
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/media/libmedia/IAudioPolicyServiceClient.cpp b/media/libmedia/IAudioPolicyServiceClient.cpp
deleted file mode 100644
index 5f931e5..0000000
--- a/media/libmedia/IAudioPolicyServiceClient.cpp
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "IAudioPolicyServiceClient"
-#include <utils/Log.h>
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <binder/Parcel.h>
-
-#include <media/IAudioPolicyServiceClient.h>
-#include <media/AudioSystem.h>
-
-namespace android {
-
-enum {
-    PORT_LIST_UPDATE = IBinder::FIRST_CALL_TRANSACTION,
-    PATCH_LIST_UPDATE,
-    MIX_STATE_UPDATE,
-    RECORDING_CONFIGURATION_UPDATE
-};
-
-// ----------------------------------------------------------------------
-inline void readAudioConfigBaseFromParcel(const Parcel& data, audio_config_base_t *config) {
-    config->sample_rate = data.readUint32();
-    config->channel_mask = (audio_channel_mask_t) data.readInt32();
-    config->format = (audio_format_t) data.readInt32();
-}
-
-inline void writeAudioConfigBaseToParcel(Parcel& data, const audio_config_base_t *config)
-{
-    data.writeUint32(config->sample_rate);
-    data.writeInt32((int32_t) config->channel_mask);
-    data.writeInt32((int32_t) config->format);
-}
-
-// ----------------------------------------------------------------------
-class BpAudioPolicyServiceClient : public BpInterface<IAudioPolicyServiceClient>
-{
-public:
-    BpAudioPolicyServiceClient(const sp<IBinder>& impl)
-        : BpInterface<IAudioPolicyServiceClient>(impl)
-    {
-    }
-
-    void onAudioPortListUpdate()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
-        remote()->transact(PORT_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
-    }
-
-    void onAudioPatchListUpdate()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
-        remote()->transact(PATCH_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
-    }
-
-    void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
-        data.writeString8(regId);
-        data.writeInt32(state);
-        remote()->transact(MIX_STATE_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
-    }
-
-    void onRecordingConfigurationUpdate(int event, audio_session_t session,
-            audio_source_t source, const audio_config_base_t *clientConfig,
-            const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
-        data.writeInt32(event);
-        data.writeInt32(session);
-        data.writeInt32(source);
-        writeAudioConfigBaseToParcel(data, clientConfig);
-        writeAudioConfigBaseToParcel(data, deviceConfig);
-        data.writeInt32(patchHandle);
-        remote()->transact(RECORDING_CONFIGURATION_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
-    }
-};
-
-IMPLEMENT_META_INTERFACE(AudioPolicyServiceClient, "android.media.IAudioPolicyServiceClient");
-
-// ----------------------------------------------------------------------
-
-status_t BnAudioPolicyServiceClient::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-    case PORT_LIST_UPDATE: {
-            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
-            onAudioPortListUpdate();
-            return NO_ERROR;
-        } break;
-    case PATCH_LIST_UPDATE: {
-            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
-            onAudioPatchListUpdate();
-            return NO_ERROR;
-        } break;
-    case MIX_STATE_UPDATE: {
-            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
-            String8 regId = data.readString8();
-            int32_t state = data.readInt32();
-            onDynamicPolicyMixStateUpdate(regId, state);
-            return NO_ERROR;
-        } break;
-    case RECORDING_CONFIGURATION_UPDATE: {
-            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
-            int event = (int) data.readInt32();
-            audio_session_t session = (audio_session_t) data.readInt32();
-            audio_source_t source = (audio_source_t) data.readInt32();
-            audio_config_base_t clientConfig;
-            audio_config_base_t deviceConfig;
-            readAudioConfigBaseFromParcel(data, &clientConfig);
-            readAudioConfigBaseFromParcel(data, &deviceConfig);
-            audio_patch_handle_t patchHandle = (audio_patch_handle_t) data.readInt32();
-            onRecordingConfigurationUpdate(event, session, source, &clientConfig, &deviceConfig,
-                    patchHandle);
-            return NO_ERROR;
-        } break;
-    default:
-        return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/media/libmedia/IAudioRecord.cpp b/media/libmedia/IAudioRecord.cpp
deleted file mode 100644
index ae66436..0000000
--- a/media/libmedia/IAudioRecord.cpp
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
-**
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#define LOG_TAG "IAudioRecord"
-//#define LOG_NDEBUG 0
-#include <utils/Log.h>
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <binder/Parcel.h>
-
-#include <media/IAudioRecord.h>
-
-namespace android {
-
-enum {
-    UNUSED_WAS_GET_CBLK = IBinder::FIRST_CALL_TRANSACTION,
-    START,
-    STOP
-};
-
-class BpAudioRecord : public BpInterface<IAudioRecord>
-{
-public:
-    BpAudioRecord(const sp<IBinder>& impl)
-        : BpInterface<IAudioRecord>(impl)
-    {
-    }
-
-    virtual status_t start(int /*AudioSystem::sync_event_t*/ event, audio_session_t triggerSession)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioRecord::getInterfaceDescriptor());
-        data.writeInt32(event);
-        data.writeInt32(triggerSession);
-        status_t status = remote()->transact(START, data, &reply);
-        if (status == NO_ERROR) {
-            status = reply.readInt32();
-        } else {
-            ALOGW("start() error: %s", strerror(-status));
-        }
-        return status;
-    }
-
-    virtual void stop()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioRecord::getInterfaceDescriptor());
-        remote()->transact(STOP, data, &reply);
-    }
-
-};
-
-IMPLEMENT_META_INTERFACE(AudioRecord, "android.media.IAudioRecord");
-
-// ----------------------------------------------------------------------
-
-status_t BnAudioRecord::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-        case START: {
-            CHECK_INTERFACE(IAudioRecord, data, reply);
-            int /*AudioSystem::sync_event_t*/ event = data.readInt32();
-            audio_session_t triggerSession = (audio_session_t) data.readInt32();
-            reply->writeInt32(start(event, triggerSession));
-            return NO_ERROR;
-        } break;
-        case STOP: {
-            CHECK_INTERFACE(IAudioRecord, data, reply);
-            stop();
-            return NO_ERROR;
-        } break;
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-} // namespace android
diff --git a/media/libmedia/IAudioTrack.cpp b/media/libmedia/IAudioTrack.cpp
deleted file mode 100644
index 636e3bb..0000000
--- a/media/libmedia/IAudioTrack.cpp
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
-**
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#define LOG_TAG "IAudioTrack"
-//#define LOG_NDEBUG 0
-#include <utils/Log.h>
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <binder/Parcel.h>
-
-#include <media/IAudioTrack.h>
-
-namespace android {
-
-enum {
-    GET_CBLK = IBinder::FIRST_CALL_TRANSACTION,
-    START,
-    STOP,
-    FLUSH,
-    RESERVED, // was MUTE
-    PAUSE,
-    ATTACH_AUX_EFFECT,
-    SET_PARAMETERS,
-    GET_TIMESTAMP,
-    SIGNAL,
-};
-
-class BpAudioTrack : public BpInterface<IAudioTrack>
-{
-public:
-    BpAudioTrack(const sp<IBinder>& impl)
-        : BpInterface<IAudioTrack>(impl)
-    {
-    }
-
-    virtual sp<IMemory> getCblk() const
-    {
-        Parcel data, reply;
-        sp<IMemory> cblk;
-        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
-        status_t status = remote()->transact(GET_CBLK, data, &reply);
-        if (status == NO_ERROR) {
-            cblk = interface_cast<IMemory>(reply.readStrongBinder());
-            if (cblk != 0 && cblk->pointer() == NULL) {
-                cblk.clear();
-            }
-        }
-        return cblk;
-    }
-
-    virtual status_t start()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
-        status_t status = remote()->transact(START, data, &reply);
-        if (status == NO_ERROR) {
-            status = reply.readInt32();
-        } else {
-            ALOGW("start() error: %s", strerror(-status));
-        }
-        return status;
-    }
-
-    virtual void stop()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
-        remote()->transact(STOP, data, &reply);
-    }
-
-    virtual void flush()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
-        remote()->transact(FLUSH, data, &reply);
-    }
-
-    virtual void pause()
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
-        remote()->transact(PAUSE, data, &reply);
-    }
-
-    virtual status_t attachAuxEffect(int effectId)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
-        data.writeInt32(effectId);
-        status_t status = remote()->transact(ATTACH_AUX_EFFECT, data, &reply);
-        if (status == NO_ERROR) {
-            status = reply.readInt32();
-        } else {
-            ALOGW("attachAuxEffect() error: %s", strerror(-status));
-        }
-        return status;
-    }
-
-    virtual status_t setParameters(const String8& keyValuePairs) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
-        data.writeString8(keyValuePairs);
-        status_t status = remote()->transact(SET_PARAMETERS, data, &reply);
-        if (status == NO_ERROR) {
-            status = reply.readInt32();
-        }
-        return status;
-    }
-
-    virtual status_t getTimestamp(AudioTimestamp& timestamp) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
-        status_t status = remote()->transact(GET_TIMESTAMP, data, &reply);
-        if (status == NO_ERROR) {
-            status = reply.readInt32();
-            if (status == NO_ERROR) {
-                timestamp.mPosition = reply.readInt32();
-                timestamp.mTime.tv_sec = reply.readInt32();
-                timestamp.mTime.tv_nsec = reply.readInt32();
-            }
-        }
-        return status;
-    }
-
-    virtual void signal() {
-        Parcel data, reply;
-        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
-        remote()->transact(SIGNAL, data, &reply);
-    }
-};
-
-IMPLEMENT_META_INTERFACE(AudioTrack, "android.media.IAudioTrack");
-
-// ----------------------------------------------------------------------
-
-status_t BnAudioTrack::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-        case GET_CBLK: {
-            CHECK_INTERFACE(IAudioTrack, data, reply);
-            reply->writeStrongBinder(IInterface::asBinder(getCblk()));
-            return NO_ERROR;
-        } break;
-        case START: {
-            CHECK_INTERFACE(IAudioTrack, data, reply);
-            reply->writeInt32(start());
-            return NO_ERROR;
-        } break;
-        case STOP: {
-            CHECK_INTERFACE(IAudioTrack, data, reply);
-            stop();
-            return NO_ERROR;
-        } break;
-        case FLUSH: {
-            CHECK_INTERFACE(IAudioTrack, data, reply);
-            flush();
-            return NO_ERROR;
-        } break;
-        case PAUSE: {
-            CHECK_INTERFACE(IAudioTrack, data, reply);
-            pause();
-            return NO_ERROR;
-        }
-        case ATTACH_AUX_EFFECT: {
-            CHECK_INTERFACE(IAudioTrack, data, reply);
-            reply->writeInt32(attachAuxEffect(data.readInt32()));
-            return NO_ERROR;
-        } break;
-        case SET_PARAMETERS: {
-            CHECK_INTERFACE(IAudioTrack, data, reply);
-            String8 keyValuePairs(data.readString8());
-            reply->writeInt32(setParameters(keyValuePairs));
-            return NO_ERROR;
-        } break;
-        case GET_TIMESTAMP: {
-            CHECK_INTERFACE(IAudioTrack, data, reply);
-            AudioTimestamp timestamp;
-            status_t status = getTimestamp(timestamp);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->writeInt32(timestamp.mPosition);
-                reply->writeInt32(timestamp.mTime.tv_sec);
-                reply->writeInt32(timestamp.mTime.tv_nsec);
-            }
-            return NO_ERROR;
-        } break;
-        case SIGNAL: {
-            CHECK_INTERFACE(IAudioTrack, data, reply);
-            signal();
-            return NO_ERROR;
-        } break;
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-} // namespace android
diff --git a/media/libmedia/ICrypto.cpp b/media/libmedia/ICrypto.cpp
deleted file mode 100644
index 302e6ee..0000000
--- a/media/libmedia/ICrypto.cpp
+++ /dev/null
@@ -1,421 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "ICrypto"
-#include <utils/Log.h>
-
-#include <binder/Parcel.h>
-#include <binder/IMemory.h>
-#include <media/ICrypto.h>
-#include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/AString.h>
-
-namespace android {
-
-enum {
-    INIT_CHECK = IBinder::FIRST_CALL_TRANSACTION,
-    IS_CRYPTO_SUPPORTED,
-    CREATE_PLUGIN,
-    DESTROY_PLUGIN,
-    REQUIRES_SECURE_COMPONENT,
-    DECRYPT,
-    NOTIFY_RESOLUTION,
-    SET_MEDIADRM_SESSION,
-};
-
-struct BpCrypto : public BpInterface<ICrypto> {
-    BpCrypto(const sp<IBinder> &impl)
-        : BpInterface<ICrypto>(impl) {
-    }
-
-    virtual status_t initCheck() const {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        remote()->transact(INIT_CHECK, data, &reply);
-
-        return reply.readInt32();
-    }
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        data.write(uuid, 16);
-        remote()->transact(IS_CRYPTO_SUPPORTED, data, &reply);
-
-        return reply.readInt32() != 0;
-    }
-
-    virtual status_t createPlugin(
-            const uint8_t uuid[16], const void *opaqueData, size_t opaqueSize) {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        data.write(uuid, 16);
-        data.writeInt32(opaqueSize);
-
-        if (opaqueSize > 0) {
-            data.write(opaqueData, opaqueSize);
-        }
-
-        remote()->transact(CREATE_PLUGIN, data, &reply);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t destroyPlugin() {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        remote()->transact(DESTROY_PLUGIN, data, &reply);
-
-        return reply.readInt32();
-    }
-
-    virtual bool requiresSecureDecoderComponent(
-            const char *mime) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        data.writeCString(mime);
-        remote()->transact(REQUIRES_SECURE_COMPONENT, data, &reply);
-
-        return reply.readInt32() != 0;
-    }
-
-    virtual ssize_t decrypt(
-            DestinationType dstType,
-            const uint8_t key[16],
-            const uint8_t iv[16],
-            CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
-            const sp<IMemory> &sharedBuffer, size_t offset,
-            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
-            void *dstPtr,
-            AString *errorDetailMsg) {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        data.writeInt32((int32_t)dstType);
-        data.writeInt32(mode);
-        data.writeInt32(pattern.mEncryptBlocks);
-        data.writeInt32(pattern.mSkipBlocks);
-
-        static const uint8_t kDummy[16] = { 0 };
-
-        if (key == NULL) {
-            key = kDummy;
-        }
-
-        if (iv == NULL) {
-            iv = kDummy;
-        }
-
-        data.write(key, 16);
-        data.write(iv, 16);
-
-        size_t totalSize = 0;
-        for (size_t i = 0; i < numSubSamples; ++i) {
-            totalSize += subSamples[i].mNumBytesOfEncryptedData;
-            totalSize += subSamples[i].mNumBytesOfClearData;
-        }
-
-        data.writeInt32(totalSize);
-        data.writeStrongBinder(IInterface::asBinder(sharedBuffer));
-        data.writeInt32(offset);
-
-        data.writeInt32(numSubSamples);
-        data.write(subSamples, sizeof(CryptoPlugin::SubSample) * numSubSamples);
-
-        if (dstType == kDestinationTypeNativeHandle) {
-            data.writeNativeHandle(static_cast<native_handle_t *>(dstPtr));
-        } else if (dstType == kDestinationTypeOpaqueHandle) {
-            data.writeInt64(static_cast<uint64_t>(reinterpret_cast<uintptr_t>(dstPtr)));
-        } else {
-            dstType = kDestinationTypeVmPointer;
-        }
-
-        remote()->transact(DECRYPT, data, &reply);
-
-        ssize_t result = reply.readInt32();
-
-        if (isCryptoError(result)) {
-            errorDetailMsg->setTo(reply.readCString());
-        } else if (dstType == kDestinationTypeVmPointer) {
-            // For the non-secure case, copy the decrypted
-            // data from shared memory to its final destination
-            memcpy(dstPtr, sharedBuffer->pointer(), result);
-        }
-
-        return result;
-    }
-
-    virtual void notifyResolution(
-        uint32_t width, uint32_t height) {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        data.writeInt32(width);
-        data.writeInt32(height);
-        remote()->transact(NOTIFY_RESOLUTION, data, &reply);
-    }
-
-    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        remote()->transact(SET_MEDIADRM_SESSION, data, &reply);
-
-        return reply.readInt32();
-    }
-
-private:
-    void readVector(Parcel &reply, Vector<uint8_t> &vector) const {
-        uint32_t size = reply.readInt32();
-        vector.insertAt((size_t)0, size);
-        reply.read(vector.editArray(), size);
-    }
-
-    void writeVector(Parcel &data, Vector<uint8_t> const &vector) const {
-        data.writeInt32(vector.size());
-        data.write(vector.array(), vector.size());
-    }
-
-    DISALLOW_EVIL_CONSTRUCTORS(BpCrypto);
-};
-
-IMPLEMENT_META_INTERFACE(Crypto, "android.hardware.ICrypto");
-
-////////////////////////////////////////////////////////////////////////////////
-
-void BnCrypto::readVector(const Parcel &data, Vector<uint8_t> &vector) const {
-    uint32_t size = data.readInt32();
-    vector.insertAt((size_t)0, size);
-    data.read(vector.editArray(), size);
-}
-
-void BnCrypto::writeVector(Parcel *reply, Vector<uint8_t> const &vector) const {
-    reply->writeInt32(vector.size());
-    reply->write(vector.array(), vector.size());
-}
-
-status_t BnCrypto::onTransact(
-    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
-    switch (code) {
-        case INIT_CHECK:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-            reply->writeInt32(initCheck());
-
-            return OK;
-        }
-
-        case IS_CRYPTO_SUPPORTED:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-            uint8_t uuid[16];
-            data.read(uuid, sizeof(uuid));
-            reply->writeInt32(isCryptoSchemeSupported(uuid));
-
-            return OK;
-        }
-
-        case CREATE_PLUGIN:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-
-            uint8_t uuid[16];
-            data.read(uuid, sizeof(uuid));
-
-            size_t opaqueSize = data.readInt32();
-            void *opaqueData = NULL;
-
-            if (opaqueSize > 0) {
-                opaqueData = malloc(opaqueSize);
-                data.read(opaqueData, opaqueSize);
-            }
-
-            reply->writeInt32(createPlugin(uuid, opaqueData, opaqueSize));
-
-            if (opaqueData != NULL) {
-                free(opaqueData);
-                opaqueData = NULL;
-            }
-
-            return OK;
-        }
-
-        case DESTROY_PLUGIN:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-            reply->writeInt32(destroyPlugin());
-
-            return OK;
-        }
-
-        case REQUIRES_SECURE_COMPONENT:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-
-            const char *mime = data.readCString();
-            if (mime == NULL) {
-                reply->writeInt32(BAD_VALUE);
-            } else {
-                reply->writeInt32(requiresSecureDecoderComponent(mime));
-            }
-
-            return OK;
-        }
-
-        case DECRYPT:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-
-            DestinationType dstType = (DestinationType)data.readInt32();
-            CryptoPlugin::Mode mode = (CryptoPlugin::Mode)data.readInt32();
-            CryptoPlugin::Pattern pattern;
-            pattern.mEncryptBlocks = data.readInt32();
-            pattern.mSkipBlocks = data.readInt32();
-
-            uint8_t key[16];
-            data.read(key, sizeof(key));
-
-            uint8_t iv[16];
-            data.read(iv, sizeof(iv));
-
-            size_t totalSize = data.readInt32();
-            sp<IMemory> sharedBuffer =
-                interface_cast<IMemory>(data.readStrongBinder());
-            if (sharedBuffer == NULL) {
-                reply->writeInt32(BAD_VALUE);
-                return OK;
-            }
-            int32_t offset = data.readInt32();
-
-            int32_t numSubSamples = data.readInt32();
-
-            CryptoPlugin::SubSample *subSamples =
-                new CryptoPlugin::SubSample[numSubSamples];
-
-            data.read(
-                    subSamples,
-                    sizeof(CryptoPlugin::SubSample) * numSubSamples);
-
-            native_handle_t *nativeHandle = NULL;
-            void *secureBufferId = NULL, *dstPtr;
-            if (dstType == kDestinationTypeNativeHandle) {
-                nativeHandle = data.readNativeHandle();
-                dstPtr = static_cast<void *>(nativeHandle);
-            } else if (dstType == kDestinationTypeOpaqueHandle) {
-                secureBufferId = reinterpret_cast<void *>(static_cast<uintptr_t>(data.readInt64()));
-                dstPtr = secureBufferId;
-            } else {
-                dstType = kDestinationTypeVmPointer;
-                dstPtr = malloc(totalSize);
-            }
-
-            AString errorDetailMsg;
-            ssize_t result;
-
-            size_t sumSubsampleSizes = 0;
-            bool overflow = false;
-            for (int32_t i = 0; i < numSubSamples; ++i) {
-                CryptoPlugin::SubSample &ss = subSamples[i];
-                if (sumSubsampleSizes <= SIZE_MAX - ss.mNumBytesOfEncryptedData) {
-                    sumSubsampleSizes += ss.mNumBytesOfEncryptedData;
-                } else {
-                    overflow = true;
-                }
-                if (sumSubsampleSizes <= SIZE_MAX - ss.mNumBytesOfClearData) {
-                    sumSubsampleSizes += ss.mNumBytesOfClearData;
-                } else {
-                    overflow = true;
-                }
-            }
-
-            if (overflow || sumSubsampleSizes != totalSize) {
-                result = -EINVAL;
-            } else if (totalSize > sharedBuffer->size()) {
-                result = -EINVAL;
-            } else if ((size_t)offset > sharedBuffer->size() - totalSize) {
-                result = -EINVAL;
-            } else {
-                result = decrypt(
-                    dstType,
-                    key,
-                    iv,
-                    mode, pattern,
-                    sharedBuffer, offset,
-                    subSamples, numSubSamples,
-                    dstPtr,
-                    &errorDetailMsg);
-            }
-
-            reply->writeInt32(result);
-
-            if (isCryptoError(result)) {
-                reply->writeCString(errorDetailMsg.c_str());
-            }
-
-            if (dstType == kDestinationTypeVmPointer) {
-                if (result >= 0) {
-                    CHECK_LE(result, static_cast<ssize_t>(totalSize));
-                    // For the non-secure case, pass the decrypted
-                    // data back via the shared buffer rather than
-                    // copying it separately over binder to avoid
-                    // binder's 1MB limit.
-                    memcpy(sharedBuffer->pointer(), dstPtr, result);
-                }
-                free(dstPtr);
-                dstPtr = NULL;
-            } else if (dstType == kDestinationTypeNativeHandle) {
-                int err;
-                if ((err = native_handle_close(nativeHandle)) < 0) {
-                    ALOGW("secure buffer native_handle_close failed: %d", err);
-                }
-                if ((err = native_handle_delete(nativeHandle)) < 0) {
-                    ALOGW("secure buffer native_handle_delete failed: %d", err);
-                }
-            }
-
-            delete[] subSamples;
-            subSamples = NULL;
-
-            return OK;
-        }
-
-        case NOTIFY_RESOLUTION:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-
-            int32_t width = data.readInt32();
-            int32_t height = data.readInt32();
-            notifyResolution(width, height);
-
-            return OK;
-        }
-
-        case SET_MEDIADRM_SESSION:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            readVector(data, sessionId);
-            reply->writeInt32(setMediaDrmSession(sessionId));
-            return OK;
-        }
-
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-}  // namespace android
diff --git a/media/libmedia/IDataSource.cpp b/media/libmedia/IDataSource.cpp
index 5ad39fe..31c85af 100644
--- a/media/libmedia/IDataSource.cpp
+++ b/media/libmedia/IDataSource.cpp
@@ -39,7 +39,8 @@
 };
 
 struct BpDataSource : public BpInterface<IDataSource> {
-    BpDataSource(const sp<IBinder>& impl) : BpInterface<IDataSource>(impl) {}
+    explicit BpDataSource(const sp<IBinder>& impl)
+        : BpInterface<IDataSource>(impl) {}
 
     virtual sp<IMemory> getIMemory() {
         Parcel data, reply;
diff --git a/media/libmedia/IDrm.cpp b/media/libmedia/IDrm.cpp
deleted file mode 100644
index 393286d..0000000
--- a/media/libmedia/IDrm.cpp
+++ /dev/null
@@ -1,933 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "IDrm"
-#include <utils/Log.h>
-
-#include <binder/Parcel.h>
-#include <media/IDrm.h>
-#include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/AString.h>
-
-namespace android {
-
-enum {
-    INIT_CHECK = IBinder::FIRST_CALL_TRANSACTION,
-    IS_CRYPTO_SUPPORTED,
-    CREATE_PLUGIN,
-    DESTROY_PLUGIN,
-    OPEN_SESSION,
-    CLOSE_SESSION,
-    GET_KEY_REQUEST,
-    PROVIDE_KEY_RESPONSE,
-    REMOVE_KEYS,
-    RESTORE_KEYS,
-    QUERY_KEY_STATUS,
-    GET_PROVISION_REQUEST,
-    PROVIDE_PROVISION_RESPONSE,
-    GET_SECURE_STOPS,
-    RELEASE_SECURE_STOPS,
-    GET_PROPERTY_STRING,
-    GET_PROPERTY_BYTE_ARRAY,
-    SET_PROPERTY_STRING,
-    SET_PROPERTY_BYTE_ARRAY,
-    SET_CIPHER_ALGORITHM,
-    SET_MAC_ALGORITHM,
-    ENCRYPT,
-    DECRYPT,
-    SIGN,
-    SIGN_RSA,
-    VERIFY,
-    SET_LISTENER,
-    GET_SECURE_STOP,
-    RELEASE_ALL_SECURE_STOPS
-};
-
-struct BpDrm : public BpInterface<IDrm> {
-    BpDrm(const sp<IBinder> &impl)
-        : BpInterface<IDrm>(impl) {
-    }
-
-    virtual status_t initCheck() const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        status_t status = remote()->transact(INIT_CHECK, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        data.write(uuid, 16);
-        data.writeString8(mimeType);
-        status_t status = remote()->transact(IS_CRYPTO_SUPPORTED, data, &reply);
-        if (status != OK) {
-            ALOGE("isCryptoSchemeSupported: binder call failed: %d", status);
-            return false;
-        }
-
-        return reply.readInt32() != 0;
-    }
-
-    virtual status_t createPlugin(const uint8_t uuid[16]) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        data.write(uuid, 16);
-
-        status_t status = remote()->transact(CREATE_PLUGIN, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t destroyPlugin() {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        status_t status = remote()->transact(DESTROY_PLUGIN, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t openSession(Vector<uint8_t> &sessionId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        status_t status = remote()->transact(OPEN_SESSION, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        readVector(reply, sessionId);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t closeSession(Vector<uint8_t> const &sessionId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        status_t status = remote()->transact(CLOSE_SESSION, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t
-        getKeyRequest(Vector<uint8_t> const &sessionId,
-                      Vector<uint8_t> const &initData,
-                      String8 const &mimeType, DrmPlugin::KeyType keyType,
-                      KeyedVector<String8, String8> const &optionalParameters,
-                      Vector<uint8_t> &request, String8 &defaultUrl,
-                      DrmPlugin::KeyRequestType *keyRequestType) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, initData);
-        data.writeString8(mimeType);
-        data.writeInt32((uint32_t)keyType);
-
-        data.writeInt32(optionalParameters.size());
-        for (size_t i = 0; i < optionalParameters.size(); ++i) {
-            data.writeString8(optionalParameters.keyAt(i));
-            data.writeString8(optionalParameters.valueAt(i));
-        }
-
-        status_t status = remote()->transact(GET_KEY_REQUEST, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, request);
-        defaultUrl = reply.readString8();
-        *keyRequestType = static_cast<DrmPlugin::KeyRequestType>(reply.readInt32());
-
-        return reply.readInt32();
-    }
-
-    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
-                                        Vector<uint8_t> const &response,
-                                        Vector<uint8_t> &keySetId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        writeVector(data, sessionId);
-        writeVector(data, response);
-
-        status_t status = remote()->transact(PROVIDE_KEY_RESPONSE, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, keySetId);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t removeKeys(Vector<uint8_t> const &keySetId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, keySetId);
-        status_t status = remote()->transact(REMOVE_KEYS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
-                                 Vector<uint8_t> const &keySetId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, keySetId);
-        status_t status = remote()->transact(RESTORE_KEYS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
-                                        KeyedVector<String8, String8> &infoMap) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        status_t status = remote()->transact(QUERY_KEY_STATUS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        infoMap.clear();
-        size_t count = reply.readInt32();
-        for (size_t i = 0; i < count; i++) {
-            String8 key = reply.readString8();
-            String8 value = reply.readString8();
-            infoMap.add(key, value);
-        }
-        return reply.readInt32();
-    }
-
-    virtual status_t getProvisionRequest(String8 const &certType,
-                                         String8 const &certAuthority,
-                                         Vector<uint8_t> &request,
-                                         String8 &defaultUrl) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        data.writeString8(certType);
-        data.writeString8(certAuthority);
-        status_t status = remote()->transact(GET_PROVISION_REQUEST, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, request);
-        defaultUrl = reply.readString8();
-
-        return reply.readInt32();
-    }
-
-    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
-                                              Vector<uint8_t> &certificate,
-                                              Vector<uint8_t> &wrappedKey) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, response);
-        status_t status = remote()->transact(PROVIDE_PROVISION_RESPONSE, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, certificate);
-        readVector(reply, wrappedKey);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        status_t status = remote()->transact(GET_SECURE_STOPS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        secureStops.clear();
-        uint32_t count = reply.readInt32();
-        for (size_t i = 0; i < count; i++) {
-            Vector<uint8_t> secureStop;
-            readVector(reply, secureStop);
-            secureStops.push_back(secureStop);
-        }
-        return reply.readInt32();
-    }
-
-    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, ssid);
-        status_t status = remote()->transact(GET_SECURE_STOP, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, secureStop);
-        return reply.readInt32();
-    }
-
-    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, ssRelease);
-        status_t status = remote()->transact(RELEASE_SECURE_STOPS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t releaseAllSecureStops() {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        status_t status = remote()->transact(RELEASE_ALL_SECURE_STOPS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t getPropertyString(String8 const &name, String8 &value) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        data.writeString8(name);
-        status_t status = remote()->transact(GET_PROPERTY_STRING, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        value = reply.readString8();
-        return reply.readInt32();
-    }
-
-    virtual status_t getPropertyByteArray(String8 const &name, Vector<uint8_t> &value) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        data.writeString8(name);
-        status_t status = remote()->transact(GET_PROPERTY_BYTE_ARRAY, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, value);
-        return reply.readInt32();
-    }
-
-    virtual status_t setPropertyString(String8 const &name, String8 const &value) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        data.writeString8(name);
-        data.writeString8(value);
-        status_t status = remote()->transact(SET_PROPERTY_STRING, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t setPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> const &value) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        data.writeString8(name);
-        writeVector(data, value);
-        status_t status = remote()->transact(SET_PROPERTY_BYTE_ARRAY, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-
-    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
-                                        String8 const &algorithm) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        data.writeString8(algorithm);
-        status_t status = remote()->transact(SET_CIPHER_ALGORITHM, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        return reply.readInt32();
-    }
-
-    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
-                                     String8 const &algorithm) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        data.writeString8(algorithm);
-        status_t status = remote()->transact(SET_MAC_ALGORITHM, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        return reply.readInt32();
-    }
-
-    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, keyId);
-        writeVector(data, input);
-        writeVector(data, iv);
-
-        status_t status = remote()->transact(ENCRYPT, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        readVector(reply, output);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, keyId);
-        writeVector(data, input);
-        writeVector(data, iv);
-
-        status_t status = remote()->transact(DECRYPT, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        readVector(reply, output);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t sign(Vector<uint8_t> const &sessionId,
-                          Vector<uint8_t> const &keyId,
-                          Vector<uint8_t> const &message,
-                          Vector<uint8_t> &signature) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, keyId);
-        writeVector(data, message);
-
-        status_t status = remote()->transact(SIGN, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        readVector(reply, signature);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t verify(Vector<uint8_t> const &sessionId,
-                            Vector<uint8_t> const &keyId,
-                            Vector<uint8_t> const &message,
-                            Vector<uint8_t> const &signature,
-                            bool &match) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, keyId);
-        writeVector(data, message);
-        writeVector(data, signature);
-
-        status_t status = remote()->transact(VERIFY, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        match = (bool)reply.readInt32();
-        return reply.readInt32();
-    }
-
-    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
-                             String8 const &algorithm,
-                             Vector<uint8_t> const &message,
-                             Vector<uint8_t> const &wrappedKey,
-                             Vector<uint8_t> &signature) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        data.writeString8(algorithm);
-        writeVector(data, message);
-        writeVector(data, wrappedKey);
-
-        status_t status = remote()->transact(SIGN_RSA, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        readVector(reply, signature);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t setListener(const sp<IDrmClient>& listener) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(listener));
-        status_t status = remote()->transact(SET_LISTENER, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        return reply.readInt32();
-    }
-
-private:
-    void readVector(Parcel &reply, Vector<uint8_t> &vector) const {
-        uint32_t size = reply.readInt32();
-        vector.insertAt((size_t)0, size);
-        reply.read(vector.editArray(), size);
-    }
-
-    void writeVector(Parcel &data, Vector<uint8_t> const &vector) const {
-        data.writeInt32(vector.size());
-        data.write(vector.array(), vector.size());
-    }
-
-    DISALLOW_EVIL_CONSTRUCTORS(BpDrm);
-};
-
-IMPLEMENT_META_INTERFACE(Drm, "android.drm.IDrm");
-
-////////////////////////////////////////////////////////////////////////////////
-
-void BnDrm::readVector(const Parcel &data, Vector<uint8_t> &vector) const {
-    uint32_t size = data.readInt32();
-    if (vector.insertAt((size_t)0, size) < 0) {
-        vector.clear();
-    }
-    if (data.read(vector.editArray(), size) != NO_ERROR) {
-        vector.clear();
-        android_errorWriteWithInfoLog(0x534e4554, "62872384", -1, NULL, 0);
-    }
-}
-
-void BnDrm::writeVector(Parcel *reply, Vector<uint8_t> const &vector) const {
-    reply->writeInt32(vector.size());
-    reply->write(vector.array(), vector.size());
-}
-
-status_t BnDrm::onTransact(
-    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
-    switch (code) {
-        case INIT_CHECK:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            reply->writeInt32(initCheck());
-            return OK;
-        }
-
-        case IS_CRYPTO_SUPPORTED:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            uint8_t uuid[16];
-            data.read(uuid, sizeof(uuid));
-            String8 mimeType = data.readString8();
-            reply->writeInt32(isCryptoSchemeSupported(uuid, mimeType));
-
-            return OK;
-        }
-
-        case CREATE_PLUGIN:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            uint8_t uuid[16];
-            data.read(uuid, sizeof(uuid));
-            reply->writeInt32(createPlugin(uuid));
-            return OK;
-        }
-
-        case DESTROY_PLUGIN:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            reply->writeInt32(destroyPlugin());
-            return OK;
-        }
-
-        case OPEN_SESSION:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            status_t result = openSession(sessionId);
-            writeVector(reply, sessionId);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case CLOSE_SESSION:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            readVector(data, sessionId);
-            reply->writeInt32(closeSession(sessionId));
-            return OK;
-        }
-
-        case GET_KEY_REQUEST:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, initData;
-
-            readVector(data, sessionId);
-            readVector(data, initData);
-            String8 mimeType = data.readString8();
-            DrmPlugin::KeyType keyType = (DrmPlugin::KeyType)data.readInt32();
-
-            KeyedVector<String8, String8> optionalParameters;
-            uint32_t count = data.readInt32();
-            for (size_t i = 0; i < count; ++i) {
-                String8 key, value;
-                key = data.readString8();
-                value = data.readString8();
-                optionalParameters.add(key, value);
-            }
-
-            Vector<uint8_t> request;
-            String8 defaultUrl;
-            DrmPlugin::KeyRequestType keyRequestType = DrmPlugin::kKeyRequestType_Unknown;
-
-            status_t result = getKeyRequest(sessionId, initData, mimeType,
-                    keyType, optionalParameters, request, defaultUrl,
-                    &keyRequestType);
-
-            writeVector(reply, request);
-            reply->writeString8(defaultUrl);
-            reply->writeInt32(static_cast<int32_t>(keyRequestType));
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case PROVIDE_KEY_RESPONSE:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, response, keySetId;
-            readVector(data, sessionId);
-            readVector(data, response);
-            uint32_t result = provideKeyResponse(sessionId, response, keySetId);
-            writeVector(reply, keySetId);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case REMOVE_KEYS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> keySetId;
-            readVector(data, keySetId);
-            reply->writeInt32(removeKeys(keySetId));
-            return OK;
-        }
-
-        case RESTORE_KEYS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, keySetId;
-            readVector(data, sessionId);
-            readVector(data, keySetId);
-            reply->writeInt32(restoreKeys(sessionId, keySetId));
-            return OK;
-        }
-
-        case QUERY_KEY_STATUS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            readVector(data, sessionId);
-            KeyedVector<String8, String8> infoMap;
-            status_t result = queryKeyStatus(sessionId, infoMap);
-            size_t count = infoMap.size();
-            reply->writeInt32(count);
-            for (size_t i = 0; i < count; ++i) {
-                reply->writeString8(infoMap.keyAt(i));
-                reply->writeString8(infoMap.valueAt(i));
-            }
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case GET_PROVISION_REQUEST:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            String8 certType = data.readString8();
-            String8 certAuthority = data.readString8();
-
-            Vector<uint8_t> request;
-            String8 defaultUrl;
-            status_t result = getProvisionRequest(certType, certAuthority,
-                                                  request, defaultUrl);
-            writeVector(reply, request);
-            reply->writeString8(defaultUrl);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case PROVIDE_PROVISION_RESPONSE:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> response;
-            Vector<uint8_t> certificate;
-            Vector<uint8_t> wrappedKey;
-            readVector(data, response);
-            status_t result = provideProvisionResponse(response, certificate, wrappedKey);
-            writeVector(reply, certificate);
-            writeVector(reply, wrappedKey);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case GET_SECURE_STOPS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            List<Vector<uint8_t> > secureStops;
-            status_t result = getSecureStops(secureStops);
-            size_t count = secureStops.size();
-            reply->writeInt32(count);
-            List<Vector<uint8_t> >::iterator iter = secureStops.begin();
-            while(iter != secureStops.end()) {
-                size_t size = iter->size();
-                reply->writeInt32(size);
-                reply->write(iter->array(), iter->size());
-                iter++;
-            }
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case GET_SECURE_STOP:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> ssid, secureStop;
-            readVector(data, ssid);
-            status_t result = getSecureStop(ssid, secureStop);
-            writeVector(reply, secureStop);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case RELEASE_SECURE_STOPS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> ssRelease;
-            readVector(data, ssRelease);
-            reply->writeInt32(releaseSecureStops(ssRelease));
-            return OK;
-        }
-
-        case RELEASE_ALL_SECURE_STOPS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            reply->writeInt32(releaseAllSecureStops());
-            return OK;
-        }
-
-        case GET_PROPERTY_STRING:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            String8 name = data.readString8();
-            String8 value;
-            status_t result = getPropertyString(name, value);
-            reply->writeString8(value);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case GET_PROPERTY_BYTE_ARRAY:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            String8 name = data.readString8();
-            Vector<uint8_t> value;
-            status_t result = getPropertyByteArray(name, value);
-            writeVector(reply, value);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case SET_PROPERTY_STRING:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            String8 name = data.readString8();
-            String8 value = data.readString8();
-            reply->writeInt32(setPropertyString(name, value));
-            return OK;
-        }
-
-        case SET_PROPERTY_BYTE_ARRAY:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            String8 name = data.readString8();
-            Vector<uint8_t> value;
-            readVector(data, value);
-            reply->writeInt32(setPropertyByteArray(name, value));
-            return OK;
-        }
-
-        case SET_CIPHER_ALGORITHM:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            readVector(data, sessionId);
-            String8 algorithm = data.readString8();
-            reply->writeInt32(setCipherAlgorithm(sessionId, algorithm));
-            return OK;
-        }
-
-        case SET_MAC_ALGORITHM:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            readVector(data, sessionId);
-            String8 algorithm = data.readString8();
-            reply->writeInt32(setMacAlgorithm(sessionId, algorithm));
-            return OK;
-        }
-
-        case ENCRYPT:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, keyId, input, iv, output;
-            readVector(data, sessionId);
-            readVector(data, keyId);
-            readVector(data, input);
-            readVector(data, iv);
-            uint32_t result = encrypt(sessionId, keyId, input, iv, output);
-            writeVector(reply, output);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case DECRYPT:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, keyId, input, iv, output;
-            readVector(data, sessionId);
-            readVector(data, keyId);
-            readVector(data, input);
-            readVector(data, iv);
-            uint32_t result = decrypt(sessionId, keyId, input, iv, output);
-            writeVector(reply, output);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case SIGN:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, keyId, message, signature;
-            readVector(data, sessionId);
-            readVector(data, keyId);
-            readVector(data, message);
-            uint32_t result = sign(sessionId, keyId, message, signature);
-            writeVector(reply, signature);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case VERIFY:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, keyId, message, signature;
-            readVector(data, sessionId);
-            readVector(data, keyId);
-            readVector(data, message);
-            readVector(data, signature);
-            bool match = false;
-            uint32_t result = verify(sessionId, keyId, message, signature, match);
-            reply->writeInt32(match);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case SIGN_RSA:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, message, wrappedKey, signature;
-            readVector(data, sessionId);
-            String8 algorithm = data.readString8();
-            readVector(data, message);
-            readVector(data, wrappedKey);
-            uint32_t result = signRSA(sessionId, algorithm, message, wrappedKey, signature);
-            writeVector(reply, signature);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-    case SET_LISTENER: {
-        CHECK_INTERFACE(IDrm, data, reply);
-        sp<IDrmClient> listener =
-            interface_cast<IDrmClient>(data.readStrongBinder());
-        reply->writeInt32(setListener(listener));
-        return NO_ERROR;
-    } break;
-
-    default:
-        return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-}  // namespace android
diff --git a/media/libmedia/IDrmClient.cpp b/media/libmedia/IDrmClient.cpp
deleted file mode 100644
index 490c6ed..0000000
--- a/media/libmedia/IDrmClient.cpp
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
-**
-** Copyright 2013, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "IDrmClient"
-#include <utils/Log.h>
-
-#include <utils/RefBase.h>
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-
-#include <media/IMediaPlayerClient.h>
-#include <media/IDrmClient.h>
-
-namespace android {
-
-enum {
-    NOTIFY = IBinder::FIRST_CALL_TRANSACTION,
-};
-
-class BpDrmClient: public BpInterface<IDrmClient>
-{
-public:
-    BpDrmClient(const sp<IBinder>& impl)
-        : BpInterface<IDrmClient>(impl)
-    {
-    }
-
-    virtual void notify(DrmPlugin::EventType eventType, int extra, const Parcel *obj)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrmClient::getInterfaceDescriptor());
-        data.writeInt32((int)eventType);
-        data.writeInt32(extra);
-        if (obj && obj->dataSize() > 0) {
-            data.appendFrom(const_cast<Parcel *>(obj), 0, obj->dataSize());
-        }
-        remote()->transact(NOTIFY, data, &reply, IBinder::FLAG_ONEWAY);
-    }
-};
-
-IMPLEMENT_META_INTERFACE(DrmClient, "android.media.IDrmClient");
-
-// ----------------------------------------------------------------------
-
-status_t BnDrmClient::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-        case NOTIFY: {
-            CHECK_INTERFACE(IDrmClient, data, reply);
-            int eventType = data.readInt32();
-            int extra = data.readInt32();
-            Parcel obj;
-            if (data.dataAvail() > 0) {
-                obj.appendFrom(const_cast<Parcel *>(&data), data.dataPosition(), data.dataAvail());
-            }
-
-            notify((DrmPlugin::EventType)eventType, extra, &obj);
-            return NO_ERROR;
-        } break;
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-} // namespace android
diff --git a/media/libmedia/IEffect.cpp b/media/libmedia/IEffect.cpp
deleted file mode 100644
index af6d8de..0000000
--- a/media/libmedia/IEffect.cpp
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
-**
-** Copyright 2010, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "IEffect"
-#include <utils/Log.h>
-#include <stdint.h>
-#include <sys/types.h>
-#include <binder/Parcel.h>
-#include <media/IEffect.h>
-
-namespace android {
-
-// Maximum command/reply size expected
-#define EFFECT_PARAM_SIZE_MAX       65536
-
-enum {
-    ENABLE = IBinder::FIRST_CALL_TRANSACTION,
-    DISABLE,
-    COMMAND,
-    DISCONNECT,
-    GET_CBLK
-};
-
-class BpEffect: public BpInterface<IEffect>
-{
-public:
-    BpEffect(const sp<IBinder>& impl)
-        : BpInterface<IEffect>(impl)
-    {
-    }
-
-    status_t enable()
-    {
-        ALOGV("enable");
-        Parcel data, reply;
-        data.writeInterfaceToken(IEffect::getInterfaceDescriptor());
-        remote()->transact(ENABLE, data, &reply);
-        return reply.readInt32();
-    }
-
-    status_t disable()
-    {
-        ALOGV("disable");
-        Parcel data, reply;
-        data.writeInterfaceToken(IEffect::getInterfaceDescriptor());
-        remote()->transact(DISABLE, data, &reply);
-        return reply.readInt32();
-    }
-
-    status_t command(uint32_t cmdCode,
-                     uint32_t cmdSize,
-                     void *pCmdData,
-                     uint32_t *pReplySize,
-                     void *pReplyData)
-    {
-        ALOGV("command");
-        Parcel data, reply;
-        data.writeInterfaceToken(IEffect::getInterfaceDescriptor());
-        data.writeInt32(cmdCode);
-        int size = cmdSize;
-        if (pCmdData == NULL) {
-            size = 0;
-        }
-        data.writeInt32(size);
-        if (size) {
-            data.write(pCmdData, size);
-        }
-        if (pReplySize == NULL) {
-            size = 0;
-        } else {
-            size = *pReplySize;
-        }
-        data.writeInt32(size);
-
-        status_t status = remote()->transact(COMMAND, data, &reply);
-        if (status == NO_ERROR) {
-            status = reply.readInt32();
-        }
-        if (status != NO_ERROR) {
-            if (pReplySize != NULL)
-                *pReplySize = 0;
-            return status;
-        }
-
-        size = reply.readInt32();
-        if (size != 0 && pReplyData != NULL && pReplySize != NULL) {
-            reply.read(pReplyData, size);
-            *pReplySize = size;
-        }
-        return status;
-    }
-
-    void disconnect()
-    {
-        ALOGV("disconnect");
-        Parcel data, reply;
-        data.writeInterfaceToken(IEffect::getInterfaceDescriptor());
-        remote()->transact(DISCONNECT, data, &reply);
-        return;
-    }
-
-    virtual sp<IMemory> getCblk() const
-    {
-        Parcel data, reply;
-        sp<IMemory> cblk;
-        data.writeInterfaceToken(IEffect::getInterfaceDescriptor());
-        status_t status = remote()->transact(GET_CBLK, data, &reply);
-        if (status == NO_ERROR) {
-            cblk = interface_cast<IMemory>(reply.readStrongBinder());
-            if (cblk != 0 && cblk->pointer() == NULL) {
-                cblk.clear();
-            }
-        }
-        return cblk;
-    }
- };
-
-IMPLEMENT_META_INTERFACE(Effect, "android.media.IEffect");
-
-// ----------------------------------------------------------------------
-
-status_t BnEffect::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-        case ENABLE: {
-            ALOGV("ENABLE");
-            CHECK_INTERFACE(IEffect, data, reply);
-            reply->writeInt32(enable());
-            return NO_ERROR;
-        } break;
-
-        case DISABLE: {
-            ALOGV("DISABLE");
-            CHECK_INTERFACE(IEffect, data, reply);
-            reply->writeInt32(disable());
-            return NO_ERROR;
-        } break;
-
-        case COMMAND: {
-            ALOGV("COMMAND");
-            CHECK_INTERFACE(IEffect, data, reply);
-            uint32_t cmdCode = data.readInt32();
-            uint32_t cmdSize = data.readInt32();
-            char *cmd = NULL;
-            if (cmdSize) {
-                if (cmdSize > EFFECT_PARAM_SIZE_MAX) {
-                    reply->writeInt32(NO_MEMORY);
-                    return NO_ERROR;
-                }
-                cmd = (char *)calloc(cmdSize, 1);
-                if (cmd == NULL) {
-                    reply->writeInt32(NO_MEMORY);
-                    return NO_ERROR;
-                }
-                data.read(cmd, cmdSize);
-            }
-            uint32_t replySize = data.readInt32();
-            uint32_t replySz = replySize;
-            char *resp = NULL;
-            if (replySize) {
-                if (replySize > EFFECT_PARAM_SIZE_MAX) {
-                    free(cmd);
-                    reply->writeInt32(NO_MEMORY);
-                    return NO_ERROR;
-                }
-                resp = (char *)calloc(replySize, 1);
-                if (resp == NULL) {
-                    free(cmd);
-                    reply->writeInt32(NO_MEMORY);
-                    return NO_ERROR;
-                }
-            }
-            status_t status = command(cmdCode, cmdSize, cmd, &replySz, resp);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                if (replySz < replySize) {
-                    replySize = replySz;
-                }
-                reply->writeInt32(replySize);
-                if (replySize) {
-                    reply->write(resp, replySize);
-                }
-            }
-            if (cmd) {
-                free(cmd);
-            }
-            if (resp) {
-                free(resp);
-            }
-            return NO_ERROR;
-        } break;
-
-        case DISCONNECT: {
-            ALOGV("DISCONNECT");
-            CHECK_INTERFACE(IEffect, data, reply);
-            disconnect();
-            return NO_ERROR;
-        } break;
-
-        case GET_CBLK: {
-            CHECK_INTERFACE(IEffect, data, reply);
-            reply->writeStrongBinder(IInterface::asBinder(getCblk()));
-            return NO_ERROR;
-        } break;
-
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/media/libmedia/IEffectClient.cpp b/media/libmedia/IEffectClient.cpp
deleted file mode 100644
index 1322e72..0000000
--- a/media/libmedia/IEffectClient.cpp
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
-**
-** Copyright 2010, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "IEffectClient"
-#include <utils/Log.h>
-#include <stdint.h>
-#include <sys/types.h>
-#include <media/IEffectClient.h>
-
-namespace android {
-
-enum {
-    CONTROL_STATUS_CHANGED = IBinder::FIRST_CALL_TRANSACTION,
-    ENABLE_STATUS_CHANGED,
-    COMMAND_EXECUTED
-};
-
-class BpEffectClient: public BpInterface<IEffectClient>
-{
-public:
-    BpEffectClient(const sp<IBinder>& impl)
-        : BpInterface<IEffectClient>(impl)
-    {
-    }
-
-    void controlStatusChanged(bool controlGranted)
-    {
-        ALOGV("controlStatusChanged");
-        Parcel data, reply;
-        data.writeInterfaceToken(IEffectClient::getInterfaceDescriptor());
-        data.writeInt32((uint32_t)controlGranted);
-        remote()->transact(CONTROL_STATUS_CHANGED, data, &reply, IBinder::FLAG_ONEWAY);
-    }
-
-    void enableStatusChanged(bool enabled)
-    {
-        ALOGV("enableStatusChanged");
-        Parcel data, reply;
-        data.writeInterfaceToken(IEffectClient::getInterfaceDescriptor());
-        data.writeInt32((uint32_t)enabled);
-        remote()->transact(ENABLE_STATUS_CHANGED, data, &reply, IBinder::FLAG_ONEWAY);
-    }
-
-    void commandExecuted(uint32_t cmdCode,
-                         uint32_t cmdSize,
-                         void *pCmdData,
-                         uint32_t replySize,
-                         void *pReplyData)
-    {
-        ALOGV("commandExecuted");
-        Parcel data, reply;
-        data.writeInterfaceToken(IEffectClient::getInterfaceDescriptor());
-        data.writeInt32(cmdCode);
-        int size = cmdSize;
-        if (pCmdData == NULL) {
-            size = 0;
-        }
-        data.writeInt32(size);
-        if (size) {
-            data.write(pCmdData, size);
-        }
-        size = replySize;
-        if (pReplyData == NULL) {
-            size = 0;
-        }
-        data.writeInt32(size);
-        if (size) {
-            data.write(pReplyData, size);
-        }
-        remote()->transact(COMMAND_EXECUTED, data, &reply, IBinder::FLAG_ONEWAY);
-    }
-
-};
-
-IMPLEMENT_META_INTERFACE(EffectClient, "android.media.IEffectClient");
-
-// ----------------------------------------------------------------------
-
-status_t BnEffectClient::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-        case CONTROL_STATUS_CHANGED: {
-            ALOGV("CONTROL_STATUS_CHANGED");
-            CHECK_INTERFACE(IEffectClient, data, reply);
-            bool hasControl = (bool)data.readInt32();
-            controlStatusChanged(hasControl);
-            return NO_ERROR;
-        } break;
-        case ENABLE_STATUS_CHANGED: {
-            ALOGV("ENABLE_STATUS_CHANGED");
-            CHECK_INTERFACE(IEffectClient, data, reply);
-            bool enabled = (bool)data.readInt32();
-            enableStatusChanged(enabled);
-            return NO_ERROR;
-        } break;
-        case COMMAND_EXECUTED: {
-            ALOGV("COMMAND_EXECUTED");
-            CHECK_INTERFACE(IEffectClient, data, reply);
-            uint32_t cmdCode = data.readInt32();
-            uint32_t cmdSize = data.readInt32();
-            char *cmd = NULL;
-            if (cmdSize) {
-                cmd = (char *)malloc(cmdSize);
-                data.read(cmd, cmdSize);
-            }
-            uint32_t replySize = data.readInt32();
-            char *resp = NULL;
-            if (replySize) {
-                resp = (char *)malloc(replySize);
-                data.read(resp, replySize);
-            }
-            commandExecuted(cmdCode, cmdSize, cmd, replySize, resp);
-            if (cmd) {
-                free(cmd);
-            }
-            if (resp) {
-                free(resp);
-            }
-            return NO_ERROR;
-        } break;
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/media/libmedia/IHDCP.cpp b/media/libmedia/IHDCP.cpp
index e8c8a3d..a46017f 100644
--- a/media/libmedia/IHDCP.cpp
+++ b/media/libmedia/IHDCP.cpp
@@ -37,7 +37,7 @@
 };
 
 struct BpHDCPObserver : public BpInterface<IHDCPObserver> {
-    BpHDCPObserver(const sp<IBinder> &impl)
+    explicit BpHDCPObserver(const sp<IBinder> &impl)
         : BpInterface<IHDCPObserver>(impl) {
     }
 
@@ -58,7 +58,7 @@
 IMPLEMENT_META_INTERFACE(HDCPObserver, "android.hardware.IHDCPObserver");
 
 struct BpHDCP : public BpInterface<IHDCP> {
-    BpHDCP(const sp<IBinder> &impl)
+    explicit BpHDCP(const sp<IBinder> &impl)
         : BpInterface<IHDCP>(impl) {
     }
 
@@ -240,6 +240,8 @@
 
         case HDCP_ENCRYPT:
         {
+            CHECK_INTERFACE(IHDCP, data, reply);
+
             size_t size = data.readInt32();
             void *inData = NULL;
             // watch out for overflow
@@ -313,6 +315,8 @@
 
         case HDCP_DECRYPT:
         {
+            CHECK_INTERFACE(IHDCP, data, reply);
+
             size_t size = data.readInt32();
             size_t bufSize = 2 * size;
 
diff --git a/media/libmedia/IMediaCodecList.cpp b/media/libmedia/IMediaCodecList.cpp
index 737f50c..806f46d 100644
--- a/media/libmedia/IMediaCodecList.cpp
+++ b/media/libmedia/IMediaCodecList.cpp
@@ -38,7 +38,7 @@
 class BpMediaCodecList: public BpInterface<IMediaCodecList>
 {
 public:
-    BpMediaCodecList(const sp<IBinder>& impl)
+    explicit BpMediaCodecList(const sp<IBinder>& impl)
         : BpInterface<IMediaCodecList>(impl)
     {
     }
diff --git a/media/libmedia/IMediaCodecService.cpp b/media/libmedia/IMediaCodecService.cpp
index dcf2b27..2d62419 100644
--- a/media/libmedia/IMediaCodecService.cpp
+++ b/media/libmedia/IMediaCodecService.cpp
@@ -33,7 +33,7 @@
 class BpMediaCodecService : public BpInterface<IMediaCodecService>
 {
 public:
-    BpMediaCodecService(const sp<IBinder>& impl)
+    explicit BpMediaCodecService(const sp<IBinder>& impl)
         : BpInterface<IMediaCodecService>(impl)
     {
     }
diff --git a/media/libmedia/IMediaDrmService.cpp b/media/libmedia/IMediaDrmService.cpp
deleted file mode 100644
index 9b6ecfd..0000000
--- a/media/libmedia/IMediaDrmService.cpp
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
-**
-** Copyright 2015, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <binder/Parcel.h>
-#include <binder/IMemory.h>
-#include <media/ICrypto.h>
-#include <media/IDrm.h>
-#include <media/IMediaDrmService.h>
-
-#include <utils/Errors.h>  // for status_t
-#include <utils/String8.h>
-
-namespace android {
-
-enum {
-    MAKE_CRYPTO = IBinder::FIRST_CALL_TRANSACTION,
-    MAKE_DRM,
-};
-
-class BpMediaDrmService: public BpInterface<IMediaDrmService>
-{
-public:
-    BpMediaDrmService(const sp<IBinder>& impl)
-        : BpInterface<IMediaDrmService>(impl)
-    {
-    }
-
-    virtual sp<ICrypto> makeCrypto() {
-        Parcel data, reply;
-        data.writeInterfaceToken(IMediaDrmService::getInterfaceDescriptor());
-        remote()->transact(MAKE_CRYPTO, data, &reply);
-        return interface_cast<ICrypto>(reply.readStrongBinder());
-    }
-
-    virtual sp<IDrm> makeDrm() {
-        Parcel data, reply;
-        data.writeInterfaceToken(IMediaDrmService::getInterfaceDescriptor());
-        remote()->transact(MAKE_DRM, data, &reply);
-        return interface_cast<IDrm>(reply.readStrongBinder());
-    }
-
-};
-
-IMPLEMENT_META_INTERFACE(MediaDrmService, "android.media.IMediaDrmService");
-
-// ----------------------------------------------------------------------
-
-status_t BnMediaDrmService::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-        case MAKE_CRYPTO: {
-            CHECK_INTERFACE(IMediaDrmService, data, reply);
-            sp<ICrypto> crypto = makeCrypto();
-            reply->writeStrongBinder(IInterface::asBinder(crypto));
-            return NO_ERROR;
-        } break;
-        case MAKE_DRM: {
-            CHECK_INTERFACE(IMediaDrmService, data, reply);
-            sp<IDrm> drm = makeDrm();
-            reply->writeStrongBinder(IInterface::asBinder(drm));
-            return NO_ERROR;
-        } break;
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/media/libmedia/IMediaExtractor.cpp b/media/libmedia/IMediaExtractor.cpp
index 72d1d7c..f08fabb 100644
--- a/media/libmedia/IMediaExtractor.cpp
+++ b/media/libmedia/IMediaExtractor.cpp
@@ -21,6 +21,7 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+#include <android/media/ICas.h>
 #include <binder/IPCThreadState.h>
 #include <binder/Parcel.h>
 #include <media/IMediaExtractor.h>
@@ -34,16 +35,16 @@
     GETTRACKMETADATA,
     GETMETADATA,
     FLAGS,
-    SETDRMFLAG,
-    GETDRMFLAG,
     GETDRMTRACKINFO,
+    SETMEDIACAS,
     SETUID,
-    NAME
+    NAME,
+    GETMETRICS
 };
 
 class BpMediaExtractor : public BpInterface<IMediaExtractor> {
 public:
-    BpMediaExtractor(const sp<IBinder>& impl)
+    explicit BpMediaExtractor(const sp<IBinder>& impl)
         : BpInterface<IMediaExtractor>(impl)
     {
     }
@@ -96,22 +97,40 @@
         return NULL;
     }
 
+    virtual status_t getMetrics(Parcel * reply) {
+        Parcel data;
+        data.writeInterfaceToken(BpMediaExtractor::getInterfaceDescriptor());
+        status_t ret = remote()->transact(GETMETRICS, data, reply);
+        if (ret == NO_ERROR) {
+            return OK;
+        }
+        return UNKNOWN_ERROR;
+    }
+
     virtual uint32_t flags() const {
         ALOGV("flags NOT IMPLEMENTED");
         return 0;
     }
 
-    virtual void setDrmFlag(bool flag __unused) {
-        ALOGV("setDrmFlag NOT IMPLEMENTED");
-    }
-    virtual bool getDrmFlag() {
-        ALOGV("getDrmFlag NOT IMPLEMENTED");
-       return false;
-    }
     virtual char* getDrmTrackInfo(size_t trackID __unused, int *len __unused) {
         ALOGV("getDrmTrackInfo NOT IMPLEMENTED");
         return NULL;
     }
+
+    virtual status_t setMediaCas(const sp<ICas> & cas) {
+        ALOGV("setMediaCas");
+
+        Parcel data, reply;
+        data.writeInterfaceToken(BpMediaExtractor::getInterfaceDescriptor());
+        data.writeStrongBinder(IInterface::asBinder(cas));
+
+        status_t err = remote()->transact(SETMEDIACAS, data, &reply);
+        if (err != NO_ERROR) {
+            return err;
+        }
+        return reply.readInt32();
+    }
+
     virtual void setUID(uid_t uid __unused) {
         ALOGV("setUID NOT IMPLEMENTED");
     }
@@ -178,6 +197,26 @@
             }
             return UNKNOWN_ERROR;
         }
+        case GETMETRICS: {
+            CHECK_INTERFACE(IMediaExtractor, data, reply);
+            status_t ret = getMetrics(reply);
+            return ret;
+        }
+        case SETMEDIACAS: {
+            ALOGV("setMediaCas");
+            CHECK_INTERFACE(IMediaExtractor, data, reply);
+
+            sp<IBinder> casBinder;
+            status_t err = data.readNullableStrongBinder(&casBinder);
+            if (err != NO_ERROR) {
+                ALOGE("Error reading cas from parcel");
+                return err;
+            }
+            sp<ICas> cas = interface_cast<ICas>(casBinder);
+
+            reply->writeInt32(setMediaCas(cas));
+            return OK;
+        }
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
@@ -209,11 +248,16 @@
     for (size_t i = 0; i < tracks.size(); i++) {
         const String8 desc = trackDescriptions.itemAt(i);
         str.appendFormat("    track {%s} ", desc.string());
-        const sp<IMediaSource> source = tracks.itemAt(i).promote();
-        if (source == NULL) {
-            str.append(": deleted\n");
+        wp<IMediaSource> wSource = tracks.itemAt(i);
+        if (wSource == NULL) {
+            str.append(": null\n");
         } else {
-            str.appendFormat(": active\n");
+            const sp<IMediaSource> source = wSource.promote();
+            if (source == NULL) {
+                str.append(": deleted\n");
+            } else {
+                str.appendFormat(": active\n");
+            }
         }
     }
     return str;
@@ -232,9 +276,14 @@
         if (extractor != NULL && extractor == ex) {
             if (instance.tracks.size() > 5) {
                 instance.tracks.resize(5);
+                instance.trackDescriptions.resize(5);
             }
             instance.tracks.push_front(source);
-            instance.trackDescriptions.add(source->getFormat()->toString());
+            if (source != NULL) {
+                instance.trackDescriptions.push_front(source->getFormat()->toString());
+            } else {
+                instance.trackDescriptions.push_front(String8::empty());
+            }
             break;
         }
     }
diff --git a/media/libmedia/IMediaExtractorService.cpp b/media/libmedia/IMediaExtractorService.cpp
index d170c22..7c0d08d 100644
--- a/media/libmedia/IMediaExtractorService.cpp
+++ b/media/libmedia/IMediaExtractorService.cpp
@@ -23,17 +23,19 @@
 #include <sys/types.h>
 #include <binder/Parcel.h>
 #include <media/IMediaExtractorService.h>
+#include <media/stagefright/MediaExtractor.h>
 
 namespace android {
 
 enum {
-    MAKE_EXTRACTOR = IBinder::FIRST_CALL_TRANSACTION
+    MAKE_EXTRACTOR = IBinder::FIRST_CALL_TRANSACTION,
+    MAKE_IDATA_SOURCE_FD,
 };
 
 class BpMediaExtractorService : public BpInterface<IMediaExtractorService>
 {
 public:
-    BpMediaExtractorService(const sp<IBinder>& impl)
+    explicit BpMediaExtractorService(const sp<IBinder>& impl)
         : BpInterface<IMediaExtractorService>(impl)
     {
     }
@@ -52,6 +54,21 @@
         return NULL;
     }
 
+    virtual sp<IDataSource> makeIDataSource(int fd, int64_t offset, int64_t length)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaExtractorService::getInterfaceDescriptor());
+        data.writeFileDescriptor(fd);
+        data.writeInt64(offset);
+        data.writeInt64(length);
+        status_t ret = remote()->transact(MAKE_IDATA_SOURCE_FD, data, &reply);
+        ALOGV("fd:%d offset:%lld length:%lld ret:%d",
+                fd, (long long)offset, (long long)length, ret);
+        if (ret == NO_ERROR) {
+            return interface_cast<IDataSource>(reply.readStrongBinder());
+        }
+        return nullptr;
+    }
 };
 
 IMPLEMENT_META_INTERFACE(MediaExtractorService, "android.media.IMediaExtractorService");
@@ -80,6 +97,23 @@
             reply->writeStrongBinder(IInterface::asBinder(ex));
             return NO_ERROR;
         }
+
+        case MAKE_IDATA_SOURCE_FD: {
+            CHECK_INTERFACE(IMediaExtractorService, data, reply);
+            const int fd = dup(data.readFileDescriptor()); // -1 fd checked in makeIDataSource
+            const int64_t offset = data.readInt64();
+            const int64_t length = data.readInt64();
+            ALOGV("fd %d  offset%lld  length:%lld", fd, (long long)offset, (long long)length);
+            sp<IDataSource> source = makeIDataSource(fd, offset, length);
+            reply->writeStrongBinder(IInterface::asBinder(source));
+            // The FileSource closes the descriptor, so if it is not created
+            // we need to close the descriptor explicitly.
+            if (source.get() == nullptr && fd != -1) {
+                close(fd);
+            }
+            return NO_ERROR;
+        }
+
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/media/libmedia/IMediaHTTPConnection.cpp b/media/libmedia/IMediaHTTPConnection.cpp
index 0dda0be9..1bb8d67 100644
--- a/media/libmedia/IMediaHTTPConnection.cpp
+++ b/media/libmedia/IMediaHTTPConnection.cpp
@@ -38,7 +38,7 @@
 };
 
 struct BpMediaHTTPConnection : public BpInterface<IMediaHTTPConnection> {
-    BpMediaHTTPConnection(const sp<IBinder> &impl)
+    explicit BpMediaHTTPConnection(const sp<IBinder> &impl)
         : BpInterface<IMediaHTTPConnection>(impl) {
     }
 
@@ -124,6 +124,14 @@
             ALOGE("got %zu, but memory has %zu", len, mMemory->size());
             return ERROR_OUT_OF_RANGE;
         }
+        if(buffer == NULL) {
+           ALOGE("readAt got a NULL buffer");
+           return UNKNOWN_ERROR;
+        }
+        if (mMemory->pointer() == NULL) {
+           ALOGE("readAt got a NULL mMemory->pointer()");
+           return UNKNOWN_ERROR;
+        }
 
         memcpy(buffer, mMemory->pointer(), len);
 
diff --git a/media/libmedia/IMediaHTTPService.cpp b/media/libmedia/IMediaHTTPService.cpp
index 0c16a2b..062a07a 100644
--- a/media/libmedia/IMediaHTTPService.cpp
+++ b/media/libmedia/IMediaHTTPService.cpp
@@ -30,7 +30,7 @@
 };
 
 struct BpMediaHTTPService : public BpInterface<IMediaHTTPService> {
-    BpMediaHTTPService(const sp<IBinder> &impl)
+    explicit BpMediaHTTPService(const sp<IBinder> &impl)
         : BpInterface<IMediaHTTPService>(impl) {
     }
 
diff --git a/media/libmedia/IMediaLogService.cpp b/media/libmedia/IMediaLogService.cpp
deleted file mode 100644
index 1536337..0000000
--- a/media/libmedia/IMediaLogService.cpp
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
-**
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#define LOG_TAG "IMediaLogService"
-//#define LOG_NDEBUG 0
-
-#include <utils/Log.h>
-#include <stdint.h>
-#include <sys/types.h>
-#include <binder/Parcel.h>
-#include <media/IMediaLogService.h>
-
-namespace android {
-
-enum {
-    REGISTER_WRITER = IBinder::FIRST_CALL_TRANSACTION,
-    UNREGISTER_WRITER,
-};
-
-class BpMediaLogService : public BpInterface<IMediaLogService>
-{
-public:
-    BpMediaLogService(const sp<IBinder>& impl)
-        : BpInterface<IMediaLogService>(impl)
-    {
-    }
-
-    virtual void    registerWriter(const sp<IMemory>& shared, size_t size, const char *name) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IMediaLogService::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(shared));
-        data.writeInt64((int64_t) size);
-        data.writeCString(name);
-        status_t status __unused = remote()->transact(REGISTER_WRITER, data, &reply);
-        // FIXME ignores status
-    }
-
-    virtual void    unregisterWriter(const sp<IMemory>& shared) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IMediaLogService::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(shared));
-        status_t status __unused = remote()->transact(UNREGISTER_WRITER, data, &reply);
-        // FIXME ignores status
-    }
-
-};
-
-IMPLEMENT_META_INTERFACE(MediaLogService, "android.media.IMediaLogService");
-
-// ----------------------------------------------------------------------
-
-status_t BnMediaLogService::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-
-        case REGISTER_WRITER: {
-            CHECK_INTERFACE(IMediaLogService, data, reply);
-            sp<IMemory> shared = interface_cast<IMemory>(data.readStrongBinder());
-            size_t size = (size_t) data.readInt64();
-            const char *name = data.readCString();
-            registerWriter(shared, size, name);
-            return NO_ERROR;
-        }
-
-        case UNREGISTER_WRITER: {
-            CHECK_INTERFACE(IMediaLogService, data, reply);
-            sp<IMemory> shared = interface_cast<IMemory>(data.readStrongBinder());
-            unregisterWriter(shared);
-            return NO_ERROR;
-        }
-
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/media/libmedia/IMediaMetadataRetriever.cpp b/media/libmedia/IMediaMetadataRetriever.cpp
index 0bee8d3..7058ee8 100644
--- a/media/libmedia/IMediaMetadataRetriever.cpp
+++ b/media/libmedia/IMediaMetadataRetriever.cpp
@@ -75,7 +75,7 @@
 class BpMediaMetadataRetriever: public BpInterface<IMediaMetadataRetriever>
 {
 public:
-    BpMediaMetadataRetriever(const sp<IBinder>& impl)
+    explicit BpMediaMetadataRetriever(const sp<IBinder>& impl)
         : BpInterface<IMediaMetadataRetriever>(impl)
     {
     }
diff --git a/media/libmedia/IMediaPlayer.cpp b/media/libmedia/IMediaPlayer.cpp
index 519a1fd..3996227 100644
--- a/media/libmedia/IMediaPlayer.cpp
+++ b/media/libmedia/IMediaPlayer.cpp
@@ -23,6 +23,7 @@
 
 #include <media/AudioResamplerPublic.h>
 #include <media/AVSyncSettings.h>
+#include <media/BufferingSettings.h>
 
 #include <media/IDataSource.h>
 #include <media/IMediaHTTPService.h>
@@ -40,6 +41,8 @@
     SET_DATA_SOURCE_FD,
     SET_DATA_SOURCE_STREAM,
     SET_DATA_SOURCE_CALLBACK,
+    SET_BUFFERING_SETTINGS,
+    GET_DEFAULT_BUFFERING_SETTINGS,
     PREPARE_ASYNC,
     START,
     STOP,
@@ -67,12 +70,29 @@
     SET_RETRANSMIT_ENDPOINT,
     GET_RETRANSMIT_ENDPOINT,
     SET_NEXT_PLAYER,
+    APPLY_VOLUME_SHAPER,
+    GET_VOLUME_SHAPER_STATE,
+    // Modular DRM
+    PREPARE_DRM,
+    RELEASE_DRM,
 };
 
+// ModDrm helpers
+static void readVector(const Parcel& reply, Vector<uint8_t>& vector) {
+    uint32_t size = reply.readUint32();
+    vector.insertAt((size_t)0, size);
+    reply.read(vector.editArray(), size);
+}
+
+static void writeVector(Parcel& data, Vector<uint8_t> const& vector) {
+    data.writeUint32(vector.size());
+    data.write(vector.array(), vector.size());
+}
+
 class BpMediaPlayer: public BpInterface<IMediaPlayer>
 {
 public:
-    BpMediaPlayer(const sp<IBinder>& impl)
+    explicit BpMediaPlayer(const sp<IBinder>& impl)
         : BpInterface<IMediaPlayer>(impl)
     {
     }
@@ -148,6 +168,30 @@
         return reply.readInt32();
     }
 
+    status_t setBufferingSettings(const BufferingSettings& buffering)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+        buffering.writeToParcel(&data);
+        remote()->transact(SET_BUFFERING_SETTINGS, data, &reply);
+        return reply.readInt32();
+    }
+
+    status_t getDefaultBufferingSettings(BufferingSettings* buffering /* nonnull */)
+    {
+        if (buffering == nullptr) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+        remote()->transact(GET_DEFAULT_BUFFERING_SETTINGS, data, &reply);
+        status_t err = reply.readInt32();
+        if (err == OK) {
+            err = buffering->readFromParcel(&reply);
+        }
+        return err;
+    }
+
     status_t prepareAsync()
     {
         Parcel data, reply;
@@ -246,11 +290,12 @@
         return reply.readInt32();
     }
 
-    status_t seekTo(int msec)
+    status_t seekTo(int msec, MediaPlayerSeekMode mode)
     {
         Parcel data, reply;
         data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
         data.writeInt32(msec);
+        data.writeInt32(mode);
         remote()->transact(SEEK_TO, data, &reply);
         return reply.readInt32();
     }
@@ -419,6 +464,89 @@
 
         return err;
     }
+
+    virtual VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration>& configuration,
+            const sp<VolumeShaper::Operation>& operation) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        status_t tmp;
+        status_t status = configuration.get() == nullptr
+                ? data.writeInt32(0)
+                : (tmp = data.writeInt32(1)) != NO_ERROR
+                    ? tmp : configuration->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        status = operation.get() == nullptr
+                ? status = data.writeInt32(0)
+                : (tmp = data.writeInt32(1)) != NO_ERROR
+                    ? tmp : operation->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        int32_t remoteVolumeShaperStatus;
+        status = remote()->transact(APPLY_VOLUME_SHAPER, data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32(&remoteVolumeShaperStatus);
+        }
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+        return VolumeShaper::Status(remoteVolumeShaperStatus);
+    }
+
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        data.writeInt32(id);
+        status_t status = remote()->transact(GET_VOLUME_SHAPER_STATE, data, &reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        sp<VolumeShaper::State> state = new VolumeShaper::State();
+        status = state->readFromParcel(reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        return state;
+    }
+
+    // Modular DRM
+    status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        data.write(uuid, 16);
+        writeVector(data, drmSessionId);
+
+        status_t status = remote()->transact(PREPARE_DRM, data, &reply);
+        if (status != OK) {
+            ALOGE("prepareDrm: binder call failed: %d", status);
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    status_t releaseDrm()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        status_t status = remote()->transact(RELEASE_DRM, data, &reply);
+        if (status != OK) {
+            ALOGE("releaseDrm: binder call failed: %d", status);
+            return status;
+        }
+
+        return reply.readInt32();
+    }
 };
 
 IMPLEMENT_META_INTERFACE(MediaPlayer, "android.media.IMediaPlayer");
@@ -496,6 +624,23 @@
             reply->writeInt32(setVideoSurfaceTexture(bufferProducer));
             return NO_ERROR;
         } break;
+        case SET_BUFFERING_SETTINGS: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            BufferingSettings buffering;
+            buffering.readFromParcel(&data);
+            reply->writeInt32(setBufferingSettings(buffering));
+            return NO_ERROR;
+        } break;
+        case GET_DEFAULT_BUFFERING_SETTINGS: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            BufferingSettings buffering;
+            status_t err = getDefaultBufferingSettings(&buffering);
+            reply->writeInt32(err);
+            if (err == OK) {
+                buffering.writeToParcel(reply);
+            }
+            return NO_ERROR;
+        } break;
         case PREPARE_ASYNC: {
             CHECK_INTERFACE(IMediaPlayer, data, reply);
             reply->writeInt32(prepareAsync());
@@ -573,7 +718,9 @@
         } break;
         case SEEK_TO: {
             CHECK_INTERFACE(IMediaPlayer, data, reply);
-            reply->writeInt32(seekTo(data.readInt32()));
+            int msec = data.readInt32();
+            MediaPlayerSeekMode mode = (MediaPlayerSeekMode)data.readInt32();
+            reply->writeInt32(seekTo(msec, mode));
             return NO_ERROR;
         } break;
         case GET_CURRENT_POSITION: {
@@ -694,6 +841,64 @@
 
             return NO_ERROR;
         } break;
+
+        case APPLY_VOLUME_SHAPER: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            sp<VolumeShaper::Configuration> configuration;
+            sp<VolumeShaper::Operation> operation;
+
+            int32_t present;
+            status_t status = data.readInt32(&present);
+            if (status == NO_ERROR && present != 0) {
+                configuration = new VolumeShaper::Configuration();
+                status = configuration->readFromParcel(data);
+            }
+            if (status == NO_ERROR) {
+                status = data.readInt32(&present);
+            }
+            if (status == NO_ERROR && present != 0) {
+                operation = new VolumeShaper::Operation();
+                status = operation->readFromParcel(data);
+            }
+            if (status == NO_ERROR) {
+                status = (status_t)applyVolumeShaper(configuration, operation);
+            }
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+        case GET_VOLUME_SHAPER_STATE: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            int id;
+            status_t status = data.readInt32(&id);
+            if (status == NO_ERROR) {
+                sp<VolumeShaper::State> state = getVolumeShaperState(id);
+                if (state.get() != nullptr) {
+                     status = state->writeToParcel(reply);
+                }
+            }
+            return NO_ERROR;
+        } break;
+
+        // Modular DRM
+        case PREPARE_DRM: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+
+            uint8_t uuid[16];
+            data.read(uuid, sizeof(uuid));
+            Vector<uint8_t> drmSessionId;
+            readVector(data, drmSessionId);
+
+            uint32_t result = prepareDrm(uuid, drmSessionId);
+            reply->writeInt32(result);
+            return OK;
+        }
+        case RELEASE_DRM: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+
+            uint32_t result = releaseDrm();
+            reply->writeInt32(result);
+            return OK;
+        }
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/media/libmedia/IMediaPlayerClient.cpp b/media/libmedia/IMediaPlayerClient.cpp
index d608386..bbf8475 100644
--- a/media/libmedia/IMediaPlayerClient.cpp
+++ b/media/libmedia/IMediaPlayerClient.cpp
@@ -30,7 +30,7 @@
 class BpMediaPlayerClient: public BpInterface<IMediaPlayerClient>
 {
 public:
-    BpMediaPlayerClient(const sp<IBinder>& impl)
+    explicit BpMediaPlayerClient(const sp<IBinder>& impl)
         : BpInterface<IMediaPlayerClient>(impl)
     {
     }
diff --git a/media/libmedia/IMediaPlayerService.cpp b/media/libmedia/IMediaPlayerService.cpp
index 7590c1b..a01852c 100644
--- a/media/libmedia/IMediaPlayerService.cpp
+++ b/media/libmedia/IMediaPlayerService.cpp
@@ -50,7 +50,7 @@
 class BpMediaPlayerService: public BpInterface<IMediaPlayerService>
 {
 public:
-    BpMediaPlayerService(const sp<IBinder>& impl)
+    explicit BpMediaPlayerService(const sp<IBinder>& impl)
         : BpInterface<IMediaPlayerService>(impl)
     {
     }
diff --git a/media/libmedia/IMediaRecorder.cpp b/media/libmedia/IMediaRecorder.cpp
index cded55c..5282352 100644
--- a/media/libmedia/IMediaRecorder.cpp
+++ b/media/libmedia/IMediaRecorder.cpp
@@ -29,6 +29,7 @@
 #include <media/IMediaRecorder.h>
 #include <gui/Surface.h>
 #include <gui/IGraphicBufferProducer.h>
+#include <media/stagefright/PersistentSurface.h>
 
 namespace android {
 
@@ -49,6 +50,7 @@
     SET_VIDEO_ENCODER,
     SET_AUDIO_ENCODER,
     SET_OUTPUT_FILE_FD,
+    SET_NEXT_OUTPUT_FILE_FD,
     SET_VIDEO_SIZE,
     SET_VIDEO_FRAMERATE,
     SET_PARAMETERS,
@@ -57,13 +59,15 @@
     SET_LISTENER,
     SET_CLIENT_NAME,
     PAUSE,
-    RESUME
+    RESUME,
+    GET_METRICS,
+
 };
 
 class BpMediaRecorder: public BpInterface<IMediaRecorder>
 {
 public:
-    BpMediaRecorder(const sp<IBinder>& impl)
+    explicit BpMediaRecorder(const sp<IBinder>& impl)
     : BpInterface<IMediaRecorder>(impl)
     {
     }
@@ -79,12 +83,12 @@
         return reply.readInt32();
     }
 
-    status_t setInputSurface(const sp<IGraphicBufferConsumer>& surface)
+    status_t setInputSurface(const sp<PersistentSurface>& surface)
     {
         ALOGV("setInputSurface(%p)", surface.get());
         Parcel data, reply;
         data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(surface));
+        surface->writeToParcel(&data);
         remote()->transact(SET_INPUT_SURFACE, data, &reply);
         return reply.readInt32();
     }
@@ -171,17 +175,24 @@
         return reply.readInt32();
     }
 
-    status_t setOutputFile(int fd, int64_t offset, int64_t length) {
-        ALOGV("setOutputFile(%d, %" PRId64 ", %" PRId64 ")", fd, offset, length);
+    status_t setOutputFile(int fd) {
+        ALOGV("setOutputFile(%d)", fd);
         Parcel data, reply;
         data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
         data.writeFileDescriptor(fd);
-        data.writeInt64(offset);
-        data.writeInt64(length);
         remote()->transact(SET_OUTPUT_FILE_FD, data, &reply);
         return reply.readInt32();
     }
 
+    status_t setNextOutputFile(int fd) {
+        ALOGV("setNextOutputFile(%d)", fd);
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
+        data.writeFileDescriptor(fd);
+        remote()->transact(SET_NEXT_OUTPUT_FILE_FD, data, &reply);
+        return reply.readInt32();
+    }
+
     status_t setVideoSize(int width, int height)
     {
         ALOGV("setVideoSize(%dx%d)", width, height);
@@ -252,6 +263,18 @@
         return reply.readInt32();
     }
 
+    status_t getMetrics(Parcel* reply)
+    {
+        ALOGV("getMetrics");
+        Parcel data;
+        data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
+        status_t ret = remote()->transact(GET_METRICS, data, reply);
+        if (ret == NO_ERROR) {
+            return OK;
+        }
+        return UNKNOWN_ERROR;
+    }
+
     status_t start()
     {
         ALOGV("start");
@@ -388,6 +411,11 @@
             reply->writeInt32(ret);
             return NO_ERROR;
         } break;
+        case GET_METRICS: {
+            ALOGV("GET_METRICS");
+            status_t ret = getMetrics(reply);
+            return ret;
+        } break;
         case SET_VIDEO_SOURCE: {
             ALOGV("SET_VIDEO_SOURCE");
             CHECK_INTERFACE(IMediaRecorder, data, reply);
@@ -428,9 +456,15 @@
             ALOGV("SET_OUTPUT_FILE_FD");
             CHECK_INTERFACE(IMediaRecorder, data, reply);
             int fd = dup(data.readFileDescriptor());
-            int64_t offset = data.readInt64();
-            int64_t length = data.readInt64();
-            reply->writeInt32(setOutputFile(fd, offset, length));
+            reply->writeInt32(setOutputFile(fd));
+            ::close(fd);
+            return NO_ERROR;
+        } break;
+        case SET_NEXT_OUTPUT_FILE_FD: {
+            ALOGV("SET_NEXT_OUTPUT_FILE_FD");
+            CHECK_INTERFACE(IMediaRecorder, data, reply);
+            int fd = dup(data.readFileDescriptor());
+            reply->writeInt32(setNextOutputFile(fd));
             ::close(fd);
             return NO_ERROR;
         } break;
@@ -490,8 +524,8 @@
         case SET_INPUT_SURFACE: {
             ALOGV("SET_INPUT_SURFACE");
             CHECK_INTERFACE(IMediaRecorder, data, reply);
-            sp<IGraphicBufferConsumer> surface = interface_cast<IGraphicBufferConsumer>(
-                    data.readStrongBinder());
+            sp<PersistentSurface> surface = new PersistentSurface();
+            surface->readFromParcel(&data);
             reply->writeInt32(setInputSurface(surface));
             return NO_ERROR;
         } break;
diff --git a/media/libmedia/IMediaRecorderClient.cpp b/media/libmedia/IMediaRecorderClient.cpp
index 6795d23..a76f934 100644
--- a/media/libmedia/IMediaRecorderClient.cpp
+++ b/media/libmedia/IMediaRecorderClient.cpp
@@ -30,7 +30,7 @@
 class BpMediaRecorderClient: public BpInterface<IMediaRecorderClient>
 {
 public:
-    BpMediaRecorderClient(const sp<IBinder>& impl)
+    explicit BpMediaRecorderClient(const sp<IBinder>& impl)
         : BpInterface<IMediaRecorderClient>(impl)
     {
     }
diff --git a/media/libmedia/IMediaSource.cpp b/media/libmedia/IMediaSource.cpp
index 595bad9..724b3a0 100644
--- a/media/libmedia/IMediaSource.cpp
+++ b/media/libmedia/IMediaSource.cpp
@@ -67,7 +67,7 @@
 
 class BpMediaSource : public BpInterface<IMediaSource> {
 public:
-    BpMediaSource(const sp<IBinder>& impl)
+    explicit BpMediaSource(const sp<IBinder>& impl)
         : BpInterface<IMediaSource>(impl), mBuffersSinceStop(0)
     {
     }
@@ -389,7 +389,7 @@
                     }
                 }
                 if (transferBuf != nullptr) { // Using shared buffers.
-                    if (!transferBuf->isObserved()) {
+                    if (!transferBuf->isObserved() && transferBuf != buf) {
                         // Transfer buffer must be part of a MediaBufferGroup.
                         ALOGV("adding shared memory buffer %p to local group", transferBuf);
                         mGroup->add_buffer(transferBuf);
diff --git a/media/libmedia/IOMX.cpp b/media/libmedia/IOMX.cpp
index 1090a83..43130eb 100644
--- a/media/libmedia/IOMX.cpp
+++ b/media/libmedia/IOMX.cpp
@@ -25,61 +25,49 @@
 #include <media/IOMX.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/openmax/OMX_IndexExt.h>
+#include <media/OMXBuffer.h>
 #include <utils/NativeHandle.h>
+#include <gui/IGraphicBufferProducer.h>
+
+#include <omx/1.0/WOmxNode.h>
+#include <android/IGraphicBufferSource.h>
+#include <android/IOMXBufferSource.h>
 
 namespace android {
 
 enum {
     CONNECT = IBinder::FIRST_CALL_TRANSACTION,
-    LIVES_LOCALLY,
     LIST_NODES,
     ALLOCATE_NODE,
+    CREATE_INPUT_SURFACE,
     FREE_NODE,
     SEND_COMMAND,
     GET_PARAMETER,
     SET_PARAMETER,
     GET_CONFIG,
     SET_CONFIG,
-    GET_STATE,
-    ENABLE_NATIVE_BUFFERS,
-    USE_BUFFER,
-    USE_GRAPHIC_BUFFER,
-    CREATE_INPUT_SURFACE,
-    CREATE_PERSISTENT_INPUT_SURFACE,
+    SET_PORT_MODE,
     SET_INPUT_SURFACE,
-    SIGNAL_END_OF_INPUT_STREAM,
-    STORE_META_DATA_IN_BUFFERS,
     PREPARE_FOR_ADAPTIVE_PLAYBACK,
     ALLOC_SECURE_BUFFER,
-    ALLOC_BUFFER_WITH_BACKUP,
+    USE_BUFFER,
     FREE_BUFFER,
     FILL_BUFFER,
     EMPTY_BUFFER,
     GET_EXTENSION_INDEX,
     OBSERVER_ON_MSG,
     GET_GRAPHIC_BUFFER_USAGE,
-    SET_INTERNAL_OPTION,
-    UPDATE_GRAPHIC_BUFFER_IN_META,
     CONFIGURE_VIDEO_TUNNEL_MODE,
-    UPDATE_NATIVE_HANDLE_IN_META,
+    DISPATCH_MESSAGE,
+    SET_QUIRKS,
 };
 
 class BpOMX : public BpInterface<IOMX> {
 public:
-    BpOMX(const sp<IBinder> &impl)
+    explicit BpOMX(const sp<IBinder> &impl)
         : BpInterface<IOMX>(impl) {
     }
 
-    virtual bool livesLocally(node_id node, pid_t pid) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(pid);
-        remote()->transact(LIVES_LOCALLY, data, &reply);
-
-        return reply.readInt32() != 0;
-    }
-
     virtual status_t listNodes(List<ComponentInfo> *list) {
         list->clear();
 
@@ -104,8 +92,7 @@
 
     virtual status_t allocateNode(
             const char *name, const sp<IOMXObserver> &observer,
-            sp<IBinder> *nodeBinder,
-            node_id *node) {
+            sp<IOMXNode> *omxNode) {
         Parcel data, reply;
         data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
         data.writeCString(name);
@@ -114,31 +101,58 @@
 
         status_t err = reply.readInt32();
         if (err == OK) {
-            *node = (node_id)reply.readInt32();
-            if (nodeBinder != NULL) {
-                *nodeBinder = remote();
-            }
+            *omxNode = IOMXNode::asInterface(reply.readStrongBinder());
         } else {
-            *node = 0;
+            omxNode->clear();
         }
 
         return err;
     }
 
-    virtual status_t freeNode(node_id node) {
+    virtual status_t createInputSurface(
+            sp<IGraphicBufferProducer> *bufferProducer,
+            sp<IGraphicBufferSource> *bufferSource) {
         Parcel data, reply;
+        status_t err;
         data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        err = remote()->transact(CREATE_INPUT_SURFACE, data, &reply);
+        if (err != OK) {
+            ALOGW("binder transaction failed: %d", err);
+            return err;
+        }
+
+        err = reply.readInt32();
+        if (err != OK) {
+            return err;
+        }
+
+        *bufferProducer = IGraphicBufferProducer::asInterface(
+                reply.readStrongBinder());
+        *bufferSource = IGraphicBufferSource::asInterface(
+                reply.readStrongBinder());
+
+        return err;
+    }
+};
+
+class BpOMXNode : public BpInterface<IOMXNode> {
+public:
+    explicit BpOMXNode(const sp<IBinder> &impl)
+        : BpInterface<IOMXNode>(impl) {
+    }
+
+    virtual status_t freeNode() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         remote()->transact(FREE_NODE, data, &reply);
 
         return reply.readInt32();
     }
 
     virtual status_t sendCommand(
-            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) {
+            OMX_COMMANDTYPE cmd, OMX_S32 param) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(cmd);
         data.writeInt32(param);
         remote()->transact(SEND_COMMAND, data, &reply);
@@ -147,11 +161,10 @@
     }
 
     virtual status_t getParameter(
-            node_id node, OMX_INDEXTYPE index,
+            OMX_INDEXTYPE index,
             void *params, size_t size) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(index);
         data.writeInt64(size);
         data.write(params, size);
@@ -168,11 +181,10 @@
     }
 
     virtual status_t setParameter(
-            node_id node, OMX_INDEXTYPE index,
+            OMX_INDEXTYPE index,
             const void *params, size_t size) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(index);
         data.writeInt64(size);
         data.write(params, size);
@@ -182,11 +194,10 @@
     }
 
     virtual status_t getConfig(
-            node_id node, OMX_INDEXTYPE index,
+            OMX_INDEXTYPE index,
             void *params, size_t size) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(index);
         data.writeInt64(size);
         data.write(params, size);
@@ -203,11 +214,10 @@
     }
 
     virtual status_t setConfig(
-            node_id node, OMX_INDEXTYPE index,
+            OMX_INDEXTYPE index,
             const void *params, size_t size) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(index);
         data.writeInt64(size);
         data.write(params, size);
@@ -216,36 +226,21 @@
         return reply.readInt32();
     }
 
-    virtual status_t getState(
-            node_id node, OMX_STATETYPE* state) {
+    virtual status_t setPortMode(
+            OMX_U32 port_index, IOMX::PortMode mode) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        remote()->transact(GET_STATE, data, &reply);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
+        data.writeInt32(port_index);
+        data.writeInt32(mode);
+        remote()->transact(SET_PORT_MODE, data, &reply);
 
-        *state = static_cast<OMX_STATETYPE>(reply.readInt32());
         return reply.readInt32();
     }
 
-    virtual status_t enableNativeBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeInt32((uint32_t)graphic);
-        data.writeInt32((uint32_t)enable);
-        remote()->transact(ENABLE_NATIVE_BUFFERS, data, &reply);
-
-        status_t err = reply.readInt32();
-        return err;
-    }
-
     virtual status_t getGraphicBufferUsage(
-            node_id node, OMX_U32 port_index, OMX_U32* usage) {
+            OMX_U32 port_index, OMX_U32* usage) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(port_index);
         remote()->transact(GET_GRAPHIC_BUFFER_USAGE, data, &reply);
 
@@ -255,17 +250,19 @@
     }
 
     virtual status_t useBuffer(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize) {
+            OMX_U32 port_index, const OMXBuffer &omxBuf, buffer_id *buffer) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(port_index);
-        data.writeStrongBinder(IInterface::asBinder(params));
-        data.writeInt32(allottedSize);
+
+        status_t err = omxBuf.writeToParcel(&data);
+        if (err != OK) {
+            return err;
+        }
+
         remote()->transact(USE_BUFFER, data, &reply);
 
-        status_t err = reply.readInt32();
+        err = reply.readInt32();
         if (err != OK) {
             *buffer = 0;
 
@@ -277,185 +274,30 @@
         return err;
     }
 
-
-    virtual status_t useGraphicBuffer(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.write(*graphicBuffer);
-        remote()->transact(USE_GRAPHIC_BUFFER, data, &reply);
-
-        status_t err = reply.readInt32();
-        if (err != OK) {
-            *buffer = 0;
-
-            return err;
-        }
-
-        *buffer = (buffer_id)reply.readInt32();
-
-        return err;
-    }
-
-    virtual status_t updateGraphicBufferInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.write(*graphicBuffer);
-        data.writeInt32((int32_t)buffer);
-        remote()->transact(UPDATE_GRAPHIC_BUFFER_IN_META, data, &reply);
-
-        status_t err = reply.readInt32();
-        return err;
-    }
-
-    virtual status_t updateNativeHandleInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<NativeHandle> &nativeHandle, buffer_id buffer) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeInt32(nativeHandle != NULL);
-        if (nativeHandle != NULL) {
-            data.writeNativeHandle(nativeHandle->handle());
-        }
-        data.writeInt32((int32_t)buffer);
-        remote()->transact(UPDATE_NATIVE_HANDLE_IN_META, data, &reply);
-
-        status_t err = reply.readInt32();
-        return err;
-    }
-
-    virtual status_t createInputSurface(
-            node_id node, OMX_U32 port_index, android_dataspace dataSpace,
-            sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type) {
-        Parcel data, reply;
-        status_t err;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeInt32(dataSpace);
-        err = remote()->transact(CREATE_INPUT_SURFACE, data, &reply);
-        if (err != OK) {
-            ALOGW("binder transaction failed: %d", err);
-            return err;
-        }
-
-        // read type even if createInputSurface failed
-        int negotiatedType = reply.readInt32();
-        if (type != NULL) {
-            *type = (MetadataBufferType)negotiatedType;
-        }
-
-        err = reply.readInt32();
-        if (err != OK) {
-            return err;
-        }
-
-        *bufferProducer = IGraphicBufferProducer::asInterface(
-                reply.readStrongBinder());
-
-        return err;
-    }
-
-    virtual status_t createPersistentInputSurface(
-            sp<IGraphicBufferProducer> *bufferProducer,
-            sp<IGraphicBufferConsumer> *bufferConsumer) {
-        Parcel data, reply;
-        status_t err;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        err = remote()->transact(CREATE_PERSISTENT_INPUT_SURFACE, data, &reply);
-        if (err != OK) {
-            ALOGW("binder transaction failed: %d", err);
-            return err;
-        }
-
-        err = reply.readInt32();
-        if (err != OK) {
-            return err;
-        }
-
-        *bufferProducer = IGraphicBufferProducer::asInterface(
-                reply.readStrongBinder());
-        *bufferConsumer = IGraphicBufferConsumer::asInterface(
-                reply.readStrongBinder());
-
-        return err;
-    }
-
     virtual status_t setInputSurface(
-            node_id node, OMX_U32 port_index,
-            const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type) {
+            const sp<IOMXBufferSource> &bufferSource) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        status_t err;
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeStrongBinder(IInterface::asBinder(bufferConsumer));
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
 
-        err = remote()->transact(SET_INPUT_SURFACE, data, &reply);
+        data.writeStrongBinder(IInterface::asBinder(bufferSource));
+
+        status_t err = remote()->transact(SET_INPUT_SURFACE, data, &reply);
 
         if (err != OK) {
             ALOGW("binder transaction failed: %d", err);
             return err;
         }
 
-        // read type even if setInputSurface failed
-        int negotiatedType = reply.readInt32();
-        if (type != NULL) {
-            *type = (MetadataBufferType)negotiatedType;
-        }
+        err = reply.readInt32();
 
-        return reply.readInt32();
-    }
-
-    virtual status_t signalEndOfInputStream(node_id node) {
-        Parcel data, reply;
-        status_t err;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        err = remote()->transact(SIGNAL_END_OF_INPUT_STREAM, data, &reply);
-        if (err != OK) {
-            ALOGW("binder transaction failed: %d", err);
-            return err;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t storeMetaDataInBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeInt32((int32_t)enable);
-        data.writeInt32(type == NULL ? kMetadataBufferTypeANWBuffer : *type);
-
-        remote()->transact(STORE_META_DATA_IN_BUFFERS, data, &reply);
-
-        // read type even storeMetaDataInBuffers failed
-        int negotiatedType = reply.readInt32();
-        if (type != NULL) {
-            *type = (MetadataBufferType)negotiatedType;
-        }
-
-        return reply.readInt32();
+        return err;
     }
 
     virtual status_t prepareForAdaptivePlayback(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable,
+            OMX_U32 port_index, OMX_BOOL enable,
             OMX_U32 max_width, OMX_U32 max_height) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(port_index);
         data.writeInt32((int32_t)enable);
         data.writeInt32(max_width);
@@ -467,11 +309,10 @@
     }
 
     virtual status_t configureVideoTunnelMode(
-            node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
+            OMX_U32 portIndex, OMX_BOOL tunneled,
             OMX_U32 audioHwSync, native_handle_t **sidebandHandle ) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(portIndex);
         data.writeInt32((int32_t)tunneled);
         data.writeInt32(audioHwSync);
@@ -486,11 +327,10 @@
 
 
     virtual status_t allocateSecureBuffer(
-            node_id node, OMX_U32 port_index, size_t size,
+            OMX_U32 port_index, size_t size,
             buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(port_index);
         data.writeInt64(size);
         remote()->transact(ALLOC_SECURE_BUFFER, data, &reply);
@@ -514,34 +354,10 @@
         return err;
     }
 
-    virtual status_t allocateBufferWithBackup(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeStrongBinder(IInterface::asBinder(params));
-        data.writeInt32(allottedSize);
-        remote()->transact(ALLOC_BUFFER_WITH_BACKUP, data, &reply);
-
-        status_t err = reply.readInt32();
-        if (err != OK) {
-            *buffer = 0;
-
-            return err;
-        }
-
-        *buffer = (buffer_id)reply.readInt32();
-
-        return err;
-    }
-
     virtual status_t freeBuffer(
-            node_id node, OMX_U32 port_index, buffer_id buffer) {
+            OMX_U32 port_index, buffer_id buffer) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(port_index);
         data.writeInt32((int32_t)buffer);
         remote()->transact(FREE_BUFFER, data, &reply);
@@ -549,11 +365,15 @@
         return reply.readInt32();
     }
 
-    virtual status_t fillBuffer(node_id node, buffer_id buffer, int fenceFd) {
+    virtual status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf, int fenceFd) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32((int32_t)buffer);
+        status_t err = omxBuf.writeToParcel(&data);
+        if (err != OK) {
+            return err;
+        }
         data.writeInt32(fenceFd >= 0);
         if (fenceFd >= 0) {
             data.writeFileDescriptor(fenceFd, true /* takeOwnership */);
@@ -564,16 +384,15 @@
     }
 
     virtual status_t emptyBuffer(
-            node_id node,
-            buffer_id buffer,
-            OMX_U32 range_offset, OMX_U32 range_length,
+            buffer_id buffer, const OMXBuffer &omxBuf,
             OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32((int32_t)buffer);
-        data.writeInt32(range_offset);
-        data.writeInt32(range_length);
+        status_t err = omxBuf.writeToParcel(&data);
+        if (err != OK) {
+            return err;
+        }
         data.writeInt32(flags);
         data.writeInt64(timestamp);
         data.writeInt32(fenceFd >= 0);
@@ -586,12 +405,10 @@
     }
 
     virtual status_t getExtensionIndex(
-            node_id node,
             const char *parameter_name,
             OMX_INDEXTYPE *index) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeCString(parameter_name);
 
         remote()->transact(GET_EXTENSION_INDEX, data, &reply);
@@ -606,31 +423,141 @@
         return err;
     }
 
-    virtual status_t setInternalOption(
-            node_id node,
-            OMX_U32 port_index,
-            InternalOptionType type,
-            const void *optionData,
-            size_t size) {
+    virtual status_t dispatchMessage(const omx_message &msg) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeInt64(size);
-        data.write(optionData, size);
-        data.writeInt32(type);
-        remote()->transact(SET_INTERNAL_OPTION, data, &reply);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
+        data.writeInt32(msg.fenceFd >= 0);
+        if (msg.fenceFd >= 0) {
+            data.writeFileDescriptor(msg.fenceFd, true /* takeOwnership */);
+        }
+        data.writeInt32(msg.type);
+        data.write(&msg.u, sizeof(msg.u));
+
+        remote()->transact(DISPATCH_MESSAGE, data, &reply);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t setQuirks(OMX_U32 quirks) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
+        data.writeInt32(quirks);
+
+        remote()->transact(SET_QUIRKS, data, &reply);
 
         return reply.readInt32();
     }
 };
 
+using ::android::hardware::media::omx::V1_0::utils::LWOmxNode;
+class HpOMXNode : public HpInterface<BpOMXNode, LWOmxNode> {
+public:
+    HpOMXNode(const sp<IBinder>& base) : PBase(base) {}
+
+    virtual status_t freeNode() {
+        return mBase->freeNode();
+    }
+
+    virtual status_t sendCommand(
+            OMX_COMMANDTYPE cmd, OMX_S32 param) {
+        return mBase->sendCommand(cmd, param);
+    }
+
+    virtual status_t getParameter(
+            OMX_INDEXTYPE index, void *params, size_t size) {
+        return mBase->getParameter(index, params, size);
+    }
+
+    virtual status_t setParameter(
+            OMX_INDEXTYPE index, const void *params, size_t size) {
+        return mBase->setParameter(index, params, size);
+    }
+
+    virtual status_t getConfig(
+            OMX_INDEXTYPE index, void *params, size_t size) {
+        return mBase->getConfig(index, params, size);
+    }
+
+    virtual status_t setConfig(
+            OMX_INDEXTYPE index, const void *params, size_t size) {
+        return mBase->setConfig(index, params, size);
+    }
+
+    virtual status_t setPortMode(
+            OMX_U32 port_index, IOMX::PortMode mode) {
+        return mBase->setPortMode(port_index, mode);
+    }
+
+    virtual status_t prepareForAdaptivePlayback(
+            OMX_U32 portIndex, OMX_BOOL enable,
+            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) {
+        return mBase->prepareForAdaptivePlayback(
+                portIndex, enable, maxFrameWidth, maxFrameHeight);
+    }
+
+    virtual status_t configureVideoTunnelMode(
+            OMX_U32 portIndex, OMX_BOOL tunneled,
+            OMX_U32 audioHwSync, native_handle_t **sidebandHandle) {
+        return mBase->configureVideoTunnelMode(
+                portIndex, tunneled, audioHwSync, sidebandHandle);
+    }
+
+    virtual status_t getGraphicBufferUsage(
+            OMX_U32 port_index, OMX_U32* usage) {
+        return mBase->getGraphicBufferUsage(port_index, usage);
+    }
+
+    virtual status_t setInputSurface(
+            const sp<IOMXBufferSource> &bufferSource) {
+        return mBase->setInputSurface(bufferSource);
+    }
+
+    virtual status_t allocateSecureBuffer(
+            OMX_U32 port_index, size_t size, buffer_id *buffer,
+            void **buffer_data, sp<NativeHandle> *native_handle) {
+        return mBase->allocateSecureBuffer(
+                port_index, size, buffer, buffer_data, native_handle);
+    }
+
+    virtual status_t useBuffer(
+            OMX_U32 port_index, const OMXBuffer &omxBuf, buffer_id *buffer) {
+        return mBase->useBuffer(port_index, omxBuf, buffer);
+    }
+
+    virtual status_t freeBuffer(
+            OMX_U32 port_index, buffer_id buffer) {
+        return mBase->freeBuffer(port_index, buffer);
+    }
+
+    virtual status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf, int fenceFd = -1) {
+        return mBase->fillBuffer(buffer, omxBuf, fenceFd);
+    }
+
+    virtual status_t emptyBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1) {
+        return mBase->emptyBuffer(buffer, omxBuf, flags, timestamp, fenceFd);
+    }
+
+    virtual status_t getExtensionIndex(
+            const char *parameter_name,
+            OMX_INDEXTYPE *index) {
+        return mBase->getExtensionIndex(parameter_name, index);
+    }
+
+    virtual status_t dispatchMessage(const omx_message &msg) {
+        return mBase->dispatchMessage(msg);
+    }
+};
+
 IMPLEMENT_META_INTERFACE(OMX, "android.hardware.IOMX");
+IMPLEMENT_HYBRID_META_INTERFACE(OMXNode, IOmxNode, "android.hardware.IOMXNode");
 
 ////////////////////////////////////////////////////////////////////////////////
 
 #define CHECK_OMX_INTERFACE(interface, data, reply) \
-        do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
+        do { if (!(data).enforceInterface(interface::getInterfaceDescriptor())) { \
             ALOGW("Call incorrectly routed to " #interface); \
             return PERMISSION_DENIED; \
         } } while (0)
@@ -638,16 +565,6 @@
 status_t BnOMX::onTransact(
     uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
     switch (code) {
-        case LIVES_LOCALLY:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-            node_id node = (node_id)data.readInt32();
-            pid_t pid = (pid_t)data.readInt32();
-            reply->writeInt32(livesLocally(node, pid));
-
-            return OK;
-        }
-
         case LIST_NODES:
         {
             CHECK_OMX_INTERFACE(IOMX, data, reply);
@@ -686,40 +603,62 @@
                 return NO_ERROR;
             }
 
-            node_id node;
+            sp<IOMXNode> omxNode;
 
-            status_t err = allocateNode(name, observer,
-                    NULL /* nodeBinder */, &node);
+            status_t err = allocateNode(name, observer, &omxNode);
+
             reply->writeInt32(err);
             if (err == OK) {
-                reply->writeInt32((int32_t)node);
+                reply->writeStrongBinder(IInterface::asBinder(omxNode));
             }
 
             return NO_ERROR;
         }
 
-        case FREE_NODE:
+        case CREATE_INPUT_SURFACE:
         {
             CHECK_OMX_INTERFACE(IOMX, data, reply);
 
-            node_id node = (node_id)data.readInt32();
+            sp<IGraphicBufferProducer> bufferProducer;
+            sp<IGraphicBufferSource> bufferSource;
+            status_t err = createInputSurface(&bufferProducer, &bufferSource);
 
-            reply->writeInt32(freeNode(node));
+            reply->writeInt32(err);
+
+            if (err == OK) {
+                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
+                reply->writeStrongBinder(IInterface::asBinder(bufferSource));
+            }
+
+            return NO_ERROR;
+        }
+
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+status_t BnOMXNode::onTransact(
+    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
+    switch (code) {
+        case FREE_NODE:
+        {
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
+
+            reply->writeInt32(freeNode());
 
             return NO_ERROR;
         }
 
         case SEND_COMMAND:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
             OMX_COMMANDTYPE cmd =
                 static_cast<OMX_COMMANDTYPE>(data.readInt32());
 
             OMX_S32 param = data.readInt32();
-            reply->writeInt32(sendCommand(node, cmd, param));
+            reply->writeInt32(sendCommand(cmd, param));
 
             return NO_ERROR;
         }
@@ -728,11 +667,9 @@
         case SET_PARAMETER:
         case GET_CONFIG:
         case SET_CONFIG:
-        case SET_INTERNAL_OPTION:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_INDEXTYPE index = static_cast<OMX_INDEXTYPE>(data.readInt32());
 
             size_t size = data.readInt64();
@@ -742,8 +679,7 @@
             size_t pageSize = 0;
             size_t allocSize = 0;
             bool isUsageBits = (index == (OMX_INDEXTYPE) OMX_IndexParamConsumerUsageBits);
-            if ((isUsageBits && size < 4) ||
-                    (!isUsageBits && code != SET_INTERNAL_OPTION && size < 8)) {
+            if ((isUsageBits && size < 4) || (!isUsageBits && size < 8)) {
                 // we expect the structure to contain at least the size and
                 // version, 8 bytes total
                 ALOGE("b/27207275 (%zu) (%d/%d)", size, int(index), int(code));
@@ -758,15 +694,14 @@
                     params = mmap(NULL, allocSize, PROT_READ | PROT_WRITE,
                             MAP_PRIVATE | MAP_ANONYMOUS, -1 /* fd */, 0 /* offset */);
                 }
-                if (params != MAP_FAILED) {
+                if (params != MAP_FAILED && params != NULL) {
                     err = data.read(params, size);
                     if (err != OK) {
                         android_errorWriteLog(0x534e4554, "26914474");
                     } else {
                         err = NOT_ENOUGH_DATA;
                         OMX_U32 declaredSize = *(OMX_U32*)params;
-                        if (code != SET_INTERNAL_OPTION &&
-                                index != (OMX_INDEXTYPE) OMX_IndexParamConsumerUsageBits &&
+                        if (index != (OMX_INDEXTYPE) OMX_IndexParamConsumerUsageBits &&
                                 declaredSize > size) {
                             // the buffer says it's bigger than it actually is
                             ALOGE("b/27207275 (%u/%zu)", declaredSize, size);
@@ -781,26 +716,17 @@
                             } else {
                                 switch (code) {
                                     case GET_PARAMETER:
-                                        err = getParameter(node, index, params, size);
+                                        err = getParameter(index, params, size);
                                         break;
                                     case SET_PARAMETER:
-                                        err = setParameter(node, index, params, size);
+                                        err = setParameter(index, params, size);
                                         break;
                                     case GET_CONFIG:
-                                        err = getConfig(node, index, params, size);
+                                        err = getConfig(index, params, size);
                                         break;
                                     case SET_CONFIG:
-                                        err = setConfig(node, index, params, size);
+                                        err = setConfig(index, params, size);
                                         break;
-                                    case SET_INTERNAL_OPTION:
-                                    {
-                                        InternalOptionType type =
-                                            (InternalOptionType)data.readInt32();
-
-                                        err = setInternalOption(node, index, type, params, size);
-                                        break;
-                                    }
-
                                     default:
                                         TRESPASS();
                                 }
@@ -826,44 +752,24 @@
             return NO_ERROR;
         }
 
-        case GET_STATE:
+        case SET_PORT_MODE:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_STATETYPE state = OMX_StateInvalid;
-
-            status_t err = getState(node, &state);
-            reply->writeInt32(state);
-            reply->writeInt32(err);
-
-            return NO_ERROR;
-        }
-
-        case ENABLE_NATIVE_BUFFERS:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
             OMX_U32 port_index = data.readInt32();
-            OMX_BOOL graphic = (OMX_BOOL)data.readInt32();
-            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
-
-            status_t err = enableNativeBuffers(node, port_index, graphic, enable);
-            reply->writeInt32(err);
+            IOMX::PortMode mode = (IOMX::PortMode) data.readInt32();
+            reply->writeInt32(setPortMode(port_index, mode));
 
             return NO_ERROR;
         }
 
         case GET_GRAPHIC_BUFFER_USAGE:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
 
             OMX_U32 usage = 0;
-            status_t err = getGraphicBufferUsage(node, port_index, &usage);
+            status_t err = getGraphicBufferUsage(port_index, &usage);
             reply->writeInt32(err);
             reply->writeInt32(usage);
 
@@ -872,22 +778,18 @@
 
         case USE_BUFFER:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
-            sp<IMemory> params =
-                interface_cast<IMemory>(data.readStrongBinder());
-            OMX_U32 allottedSize = data.readInt32();
 
-            if (params == NULL) {
-                ALOGE("b/26392700");
-                reply->writeInt32(INVALID_OPERATION);
-                return NO_ERROR;
+            OMXBuffer omxBuf;
+            status_t err = omxBuf.readFromParcel(&data);
+            if (err != OK) {
+                return err;
             }
 
             buffer_id buffer;
-            status_t err = useBuffer(node, port_index, params, &buffer, allottedSize);
+            err = useBuffer(port_index, omxBuf, &buffer);
             reply->writeInt32(err);
 
             if (err == OK) {
@@ -897,160 +799,14 @@
             return NO_ERROR;
         }
 
-        case USE_GRAPHIC_BUFFER:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
-            data.read(*graphicBuffer);
-
-            buffer_id buffer;
-            status_t err = useGraphicBuffer(
-                    node, port_index, graphicBuffer, &buffer);
-            reply->writeInt32(err);
-
-            if (err == OK) {
-                reply->writeInt32((int32_t)buffer);
-            }
-
-            return NO_ERROR;
-        }
-
-        case UPDATE_GRAPHIC_BUFFER_IN_META:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
-            data.read(*graphicBuffer);
-            buffer_id buffer = (buffer_id)data.readInt32();
-
-            status_t err = updateGraphicBufferInMeta(
-                    node, port_index, graphicBuffer, buffer);
-            reply->writeInt32(err);
-
-            return NO_ERROR;
-        }
-
-        case UPDATE_NATIVE_HANDLE_IN_META:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            native_handle *handle = NULL;
-            if (data.readInt32()) {
-                handle = data.readNativeHandle();
-            }
-            buffer_id buffer = (buffer_id)data.readInt32();
-
-            status_t err = updateNativeHandleInMeta(
-                    node, port_index, NativeHandle::create(handle, true /* ownshandle */), buffer);
-            reply->writeInt32(err);
-
-            return NO_ERROR;
-        }
-
-        case CREATE_INPUT_SURFACE:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            android_dataspace dataSpace = (android_dataspace)data.readInt32();
-
-            sp<IGraphicBufferProducer> bufferProducer;
-            MetadataBufferType type = kMetadataBufferTypeInvalid;
-            status_t err = createInputSurface(node, port_index, dataSpace, &bufferProducer, &type);
-
-            if ((err != OK) && (type == kMetadataBufferTypeInvalid)) {
-                android_errorWriteLog(0x534e4554, "26324358");
-            }
-
-            reply->writeInt32(type);
-            reply->writeInt32(err);
-
-            if (err == OK) {
-                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
-            }
-
-            return NO_ERROR;
-        }
-
-        case CREATE_PERSISTENT_INPUT_SURFACE:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            sp<IGraphicBufferProducer> bufferProducer;
-            sp<IGraphicBufferConsumer> bufferConsumer;
-            status_t err = createPersistentInputSurface(
-                    &bufferProducer, &bufferConsumer);
-
-            reply->writeInt32(err);
-
-            if (err == OK) {
-                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
-                reply->writeStrongBinder(IInterface::asBinder(bufferConsumer));
-            }
-
-            return NO_ERROR;
-        }
-
         case SET_INPUT_SURFACE:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
+            sp<IOMXBufferSource> bufferSource =
+                    interface_cast<IOMXBufferSource>(data.readStrongBinder());
 
-            sp<IGraphicBufferConsumer> bufferConsumer =
-                    interface_cast<IGraphicBufferConsumer>(data.readStrongBinder());
-
-            MetadataBufferType type = kMetadataBufferTypeInvalid;
-
-            status_t err = INVALID_OPERATION;
-            if (bufferConsumer == NULL) {
-                ALOGE("b/26392700");
-            } else {
-                err = setInputSurface(node, port_index, bufferConsumer, &type);
-
-                if ((err != OK) && (type == kMetadataBufferTypeInvalid)) {
-                   android_errorWriteLog(0x534e4554, "26324358");
-                }
-            }
-
-            reply->writeInt32(type);
-            reply->writeInt32(err);
-            return NO_ERROR;
-        }
-
-        case SIGNAL_END_OF_INPUT_STREAM:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-
-            status_t err = signalEndOfInputStream(node);
-            reply->writeInt32(err);
-
-            return NO_ERROR;
-        }
-
-        case STORE_META_DATA_IN_BUFFERS:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
-
-            MetadataBufferType type = (MetadataBufferType)data.readInt32();
-            status_t err = storeMetaDataInBuffers(node, port_index, enable, &type);
-
-            reply->writeInt32(type);
+            status_t err = setInputSurface(bufferSource);
             reply->writeInt32(err);
 
             return NO_ERROR;
@@ -1058,16 +814,15 @@
 
         case PREPARE_FOR_ADAPTIVE_PLAYBACK:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
             OMX_BOOL enable = (OMX_BOOL)data.readInt32();
             OMX_U32 max_width = data.readInt32();
             OMX_U32 max_height = data.readInt32();
 
             status_t err = prepareForAdaptivePlayback(
-                    node, port_index, enable, max_width, max_height);
+                    port_index, enable, max_width, max_height);
             reply->writeInt32(err);
 
             return NO_ERROR;
@@ -1075,16 +830,15 @@
 
         case CONFIGURE_VIDEO_TUNNEL_MODE:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
             OMX_BOOL tunneled = (OMX_BOOL)data.readInt32();
             OMX_U32 audio_hw_sync = data.readInt32();
 
             native_handle_t *sideband_handle = NULL;
             status_t err = configureVideoTunnelMode(
-                    node, port_index, tunneled, audio_hw_sync, &sideband_handle);
+                    port_index, tunneled, audio_hw_sync, &sideband_handle);
             reply->writeInt32(err);
             if(err == OK){
                 reply->writeNativeHandle(sideband_handle);
@@ -1095,11 +849,10 @@
 
         case ALLOC_SECURE_BUFFER:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
-            if (!isSecure(node) || port_index != 0 /* kPortIndexInput */) {
+            if (!isSecure() || port_index != 0 /* kPortIndexInput */) {
                 ALOGE("b/24310423");
                 reply->writeInt32(INVALID_OPERATION);
                 return NO_ERROR;
@@ -1111,7 +864,7 @@
             void *buffer_data = NULL;
             sp<NativeHandle> native_handle;
             status_t err = allocateSecureBuffer(
-                    node, port_index, size, &buffer, &buffer_data, &native_handle);
+                    port_index, size, &buffer, &buffer_data, &native_handle);
             reply->writeInt32(err);
 
             if (err == OK) {
@@ -1125,83 +878,61 @@
             return NO_ERROR;
         }
 
-        case ALLOC_BUFFER_WITH_BACKUP:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            sp<IMemory> params =
-                interface_cast<IMemory>(data.readStrongBinder());
-            OMX_U32 allottedSize = data.readInt32();
-
-            if (params == NULL) {
-                ALOGE("b/26392700");
-                reply->writeInt32(INVALID_OPERATION);
-                return NO_ERROR;
-            }
-
-            buffer_id buffer;
-            status_t err = allocateBufferWithBackup(
-                    node, port_index, params, &buffer, allottedSize);
-
-            reply->writeInt32(err);
-
-            if (err == OK) {
-                reply->writeInt32((int32_t)buffer);
-            }
-
-            return NO_ERROR;
-        }
-
         case FREE_BUFFER:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
             buffer_id buffer = (buffer_id)data.readInt32();
-            reply->writeInt32(freeBuffer(node, port_index, buffer));
+            reply->writeInt32(freeBuffer(port_index, buffer));
 
             return NO_ERROR;
         }
 
         case FILL_BUFFER:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             buffer_id buffer = (buffer_id)data.readInt32();
+
+            OMXBuffer omxBuf;
+            status_t err = omxBuf.readFromParcel(&data);
+            if (err != OK) {
+                return err;
+            }
+
             bool haveFence = data.readInt32();
             int fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
-            reply->writeInt32(fillBuffer(node, buffer, fenceFd));
+
+            reply->writeInt32(fillBuffer(buffer, omxBuf, fenceFd));
 
             return NO_ERROR;
         }
 
         case EMPTY_BUFFER:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             buffer_id buffer = (buffer_id)data.readInt32();
-            OMX_U32 range_offset = data.readInt32();
-            OMX_U32 range_length = data.readInt32();
+            OMXBuffer omxBuf;
+            status_t err = omxBuf.readFromParcel(&data);
+            if (err != OK) {
+                return err;
+            }
             OMX_U32 flags = data.readInt32();
             OMX_TICKS timestamp = data.readInt64();
             bool haveFence = data.readInt32();
             int fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
             reply->writeInt32(emptyBuffer(
-                    node, buffer, range_offset, range_length, flags, timestamp, fenceFd));
+                    buffer, omxBuf, flags, timestamp, fenceFd));
 
             return NO_ERROR;
         }
 
         case GET_EXTENSION_INDEX:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             const char *parameter_name = data.readCString();
 
             if (parameter_name == NULL) {
@@ -1211,7 +942,7 @@
             }
 
             OMX_INDEXTYPE index;
-            status_t err = getExtensionIndex(node, parameter_name, &index);
+            status_t err = getExtensionIndex(parameter_name, &index);
 
             reply->writeInt32(err);
 
@@ -1222,6 +953,23 @@
             return OK;
         }
 
+        case DISPATCH_MESSAGE:
+        {
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
+            omx_message msg;
+            int haveFence = data.readInt32();
+            msg.fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
+            msg.type = (typeof(msg.type))data.readInt32();
+            status_t err = data.read(&msg.u, sizeof(msg.u));
+
+            if (err == OK) {
+                err = dispatchMessage(msg);
+            }
+            reply->writeInt32(err);
+
+            return NO_ERROR;
+        }
+
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
@@ -1231,21 +979,19 @@
 
 class BpOMXObserver : public BpInterface<IOMXObserver> {
 public:
-    BpOMXObserver(const sp<IBinder> &impl)
+    explicit BpOMXObserver(const sp<IBinder> &impl)
         : BpInterface<IOMXObserver>(impl) {
     }
 
     virtual void onMessages(const std::list<omx_message> &messages) {
         Parcel data, reply;
         std::list<omx_message>::const_iterator it = messages.cbegin();
-        bool first = true;
+        if (messages.empty()) {
+            return;
+        }
+        data.writeInterfaceToken(IOMXObserver::getInterfaceDescriptor());
         while (it != messages.cend()) {
             const omx_message &msg = *it++;
-            if (first) {
-                data.writeInterfaceToken(IOMXObserver::getInterfaceDescriptor());
-                data.writeInt32(msg.node);
-                first = false;
-            }
             data.writeInt32(msg.fenceFd >= 0);
             if (msg.fenceFd >= 0) {
                 data.writeFileDescriptor(msg.fenceFd, true /* takeOwnership */);
@@ -1254,10 +1000,8 @@
             data.write(&msg.u, sizeof(msg.u));
             ALOGV("onMessage writing message %d, size %zu", msg.type, sizeof(msg));
         }
-        if (!first) {
-            data.writeInt32(-1); // mark end
-            remote()->transact(OBSERVER_ON_MSG, data, &reply, IBinder::FLAG_ONEWAY);
-        }
+        data.writeInt32(-1); // mark end
+        remote()->transact(OBSERVER_ON_MSG, data, &reply, IBinder::FLAG_ONEWAY);
     }
 };
 
@@ -1269,7 +1013,6 @@
         case OBSERVER_ON_MSG:
         {
             CHECK_OMX_INTERFACE(IOMXObserver, data, reply);
-            IOMX::node_id node = data.readInt32();
             std::list<omx_message> messages;
             status_t err = FAILED_TRANSACTION; // must receive at least one message
             do {
@@ -1278,7 +1021,6 @@
                     break;
                 }
                 omx_message msg;
-                msg.node = node;
                 msg.fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
                 msg.type = (typeof(msg.type))data.readInt32();
                 err = data.read(&msg.u, sizeof(msg.u));
diff --git a/media/libmedia/IRemoteDisplay.cpp b/media/libmedia/IRemoteDisplay.cpp
index 869d11a..85c7bd6 100644
--- a/media/libmedia/IRemoteDisplay.cpp
+++ b/media/libmedia/IRemoteDisplay.cpp
@@ -30,7 +30,7 @@
 class BpRemoteDisplay: public BpInterface<IRemoteDisplay>
 {
 public:
-    BpRemoteDisplay(const sp<IBinder>& impl)
+    explicit BpRemoteDisplay(const sp<IBinder>& impl)
         : BpInterface<IRemoteDisplay>(impl)
     {
     }
diff --git a/media/libmedia/IRemoteDisplayClient.cpp b/media/libmedia/IRemoteDisplayClient.cpp
index bedeb6c..ca67665 100644
--- a/media/libmedia/IRemoteDisplayClient.cpp
+++ b/media/libmedia/IRemoteDisplayClient.cpp
@@ -32,7 +32,7 @@
 class BpRemoteDisplayClient: public BpInterface<IRemoteDisplayClient>
 {
 public:
-    BpRemoteDisplayClient(const sp<IBinder>& impl)
+    explicit BpRemoteDisplayClient(const sp<IBinder>& impl)
         : BpInterface<IRemoteDisplayClient>(impl)
     {
     }
diff --git a/media/libmedia/IResourceManagerClient.cpp b/media/libmedia/IResourceManagerClient.cpp
index b3f56e8..1fea479 100644
--- a/media/libmedia/IResourceManagerClient.cpp
+++ b/media/libmedia/IResourceManagerClient.cpp
@@ -31,7 +31,7 @@
 class BpResourceManagerClient: public BpInterface<IResourceManagerClient>
 {
 public:
-    BpResourceManagerClient(const sp<IBinder> &impl)
+    explicit BpResourceManagerClient(const sp<IBinder> &impl)
         : BpInterface<IResourceManagerClient>(impl)
     {
     }
diff --git a/media/libmedia/IResourceManagerService.cpp b/media/libmedia/IResourceManagerService.cpp
index 6cb4440..95f7d2e 100644
--- a/media/libmedia/IResourceManagerService.cpp
+++ b/media/libmedia/IResourceManagerService.cpp
@@ -58,7 +58,7 @@
 class BpResourceManagerService : public BpInterface<IResourceManagerService>
 {
 public:
-    BpResourceManagerService(const sp<IBinder> &impl)
+    explicit BpResourceManagerService(const sp<IBinder> &impl)
         : BpInterface<IResourceManagerService>(impl)
     {
     }
diff --git a/media/libmedia/IStreamSource.cpp b/media/libmedia/IStreamSource.cpp
index 8c0905c..ba0a272 100644
--- a/media/libmedia/IStreamSource.cpp
+++ b/media/libmedia/IStreamSource.cpp
@@ -51,7 +51,7 @@
 };
 
 struct BpStreamSource : public BpInterface<IStreamSource> {
-    BpStreamSource(const sp<IBinder> &impl)
+    explicit BpStreamSource(const sp<IBinder> &impl)
         : BpInterface<IStreamSource>(impl) {
     }
 
@@ -145,7 +145,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct BpStreamListener : public BpInterface<IStreamListener> {
-    BpStreamListener(const sp<IBinder> &impl)
+    explicit BpStreamListener(const sp<IBinder> &impl)
         : BpInterface<IStreamListener>(impl) {
     }
 
diff --git a/media/libmedia/MediaCodecBuffer.cpp b/media/libmedia/MediaCodecBuffer.cpp
new file mode 100644
index 0000000..59d6164
--- /dev/null
+++ b/media/libmedia/MediaCodecBuffer.cpp
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaCodecBuffer"
+#include <utils/Log.h>
+
+#include <media/MediaCodecBuffer.h>
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/AMessage.h>
+#include <media/stagefright/foundation/MediaBufferBase.h>
+
+namespace android {
+
+MediaCodecBuffer::MediaCodecBuffer(const sp<AMessage> &format, const sp<ABuffer> &buffer)
+    : mMeta(new AMessage),
+      mFormat(format),
+      mBuffer(buffer),
+      mMediaBufferBase(nullptr) {
+}
+
+// ABuffer-like interface
+uint8_t *MediaCodecBuffer::base() {
+    return mBuffer->base();
+}
+
+uint8_t *MediaCodecBuffer::data() {
+    return mBuffer->data();
+}
+
+size_t MediaCodecBuffer::capacity() const {
+    return mBuffer->capacity();
+}
+
+size_t MediaCodecBuffer::size() const {
+    return mBuffer->size();
+}
+
+size_t MediaCodecBuffer::offset() const {
+    return mBuffer->offset();
+}
+
+status_t MediaCodecBuffer::setRange(size_t offset, size_t size) {
+    mBuffer->setRange(offset, size);
+    return OK;
+}
+
+MediaBufferBase *MediaCodecBuffer::getMediaBufferBase() {
+    if (mMediaBufferBase != NULL) {
+        mMediaBufferBase->add_ref();
+    }
+    return mMediaBufferBase;
+}
+
+void MediaCodecBuffer::setMediaBufferBase(MediaBufferBase *mediaBuffer) {
+    if (mMediaBufferBase != NULL) {
+        mMediaBufferBase->release();
+    }
+    mMediaBufferBase = mediaBuffer;
+}
+
+sp<AMessage> MediaCodecBuffer::meta() {
+    return mMeta;
+}
+
+sp<AMessage> MediaCodecBuffer::format() {
+    return mFormat;
+}
+
+void MediaCodecBuffer::setFormat(const sp<AMessage> &format) {
+    mMeta->clear();
+    mFormat = format;
+}
+
+}  // namespace android
diff --git a/media/libmedia/MediaCodecInfo.cpp b/media/libmedia/MediaCodecInfo.cpp
index 1b3b3eb..62a7bdf 100644
--- a/media/libmedia/MediaCodecInfo.cpp
+++ b/media/libmedia/MediaCodecInfo.cpp
@@ -121,9 +121,11 @@
 }
 
 bool MediaCodecInfo::hasQuirk(const char *name) const {
-    for (size_t ix = 0; ix < mQuirks.size(); ix++) {
-        if (mQuirks.itemAt(ix).equalsIgnoreCase(name)) {
-            return true;
+    if (name) {
+        for (size_t ix = 0; ix < mQuirks.size(); ix++) {
+            if (mQuirks.itemAt(ix).equalsIgnoreCase(name)) {
+                return true;
+            }
         }
     }
     return false;
@@ -190,9 +192,11 @@
 }
 
 ssize_t MediaCodecInfo::getCapabilityIndex(const char *mime) const {
-    for (size_t ix = 0; ix < mCaps.size(); ix++) {
-        if (mCaps.keyAt(ix).equalsIgnoreCase(mime)) {
-            return ix;
+    if (mime) {
+        for (size_t ix = 0; ix < mCaps.size(); ix++) {
+            if (mCaps.keyAt(ix).equalsIgnoreCase(mime)) {
+                return ix;
+            }
         }
     }
     return -1;
diff --git a/media/libmedia/MediaDefs.cpp b/media/libmedia/MediaDefs.cpp
new file mode 100644
index 0000000..544a6ae
--- /dev/null
+++ b/media/libmedia/MediaDefs.cpp
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/MediaDefs.h>
+
+namespace android {
+
+const char *MEDIA_MIMETYPE_IMAGE_JPEG = "image/jpeg";
+
+const char *MEDIA_MIMETYPE_VIDEO_VP8 = "video/x-vnd.on2.vp8";
+const char *MEDIA_MIMETYPE_VIDEO_VP9 = "video/x-vnd.on2.vp9";
+const char *MEDIA_MIMETYPE_VIDEO_AVC = "video/avc";
+const char *MEDIA_MIMETYPE_VIDEO_HEVC = "video/hevc";
+const char *MEDIA_MIMETYPE_VIDEO_MPEG4 = "video/mp4v-es";
+const char *MEDIA_MIMETYPE_VIDEO_H263 = "video/3gpp";
+const char *MEDIA_MIMETYPE_VIDEO_MPEG2 = "video/mpeg2";
+const char *MEDIA_MIMETYPE_VIDEO_RAW = "video/raw";
+const char *MEDIA_MIMETYPE_VIDEO_DOLBY_VISION = "video/dolby-vision";
+const char *MEDIA_MIMETYPE_VIDEO_SCRAMBLED = "video/scrambled";
+
+const char *MEDIA_MIMETYPE_AUDIO_AMR_NB = "audio/3gpp";
+const char *MEDIA_MIMETYPE_AUDIO_AMR_WB = "audio/amr-wb";
+const char *MEDIA_MIMETYPE_AUDIO_MPEG = "audio/mpeg";
+const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I = "audio/mpeg-L1";
+const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II = "audio/mpeg-L2";
+const char *MEDIA_MIMETYPE_AUDIO_MIDI = "audio/midi";
+const char *MEDIA_MIMETYPE_AUDIO_AAC = "audio/mp4a-latm";
+const char *MEDIA_MIMETYPE_AUDIO_QCELP = "audio/qcelp";
+const char *MEDIA_MIMETYPE_AUDIO_VORBIS = "audio/vorbis";
+const char *MEDIA_MIMETYPE_AUDIO_OPUS = "audio/opus";
+const char *MEDIA_MIMETYPE_AUDIO_G711_ALAW = "audio/g711-alaw";
+const char *MEDIA_MIMETYPE_AUDIO_G711_MLAW = "audio/g711-mlaw";
+const char *MEDIA_MIMETYPE_AUDIO_RAW = "audio/raw";
+const char *MEDIA_MIMETYPE_AUDIO_FLAC = "audio/flac";
+const char *MEDIA_MIMETYPE_AUDIO_AAC_ADTS = "audio/aac-adts";
+const char *MEDIA_MIMETYPE_AUDIO_MSGSM = "audio/gsm";
+const char *MEDIA_MIMETYPE_AUDIO_AC3 = "audio/ac3";
+const char *MEDIA_MIMETYPE_AUDIO_EAC3 = "audio/eac3";
+const char *MEDIA_MIMETYPE_AUDIO_SCRAMBLED = "audio/scrambled";
+
+const char *MEDIA_MIMETYPE_CONTAINER_MPEG4 = "video/mp4";
+const char *MEDIA_MIMETYPE_CONTAINER_WAV = "audio/x-wav";
+const char *MEDIA_MIMETYPE_CONTAINER_OGG = "application/ogg";
+const char *MEDIA_MIMETYPE_CONTAINER_MATROSKA = "video/x-matroska";
+const char *MEDIA_MIMETYPE_CONTAINER_MPEG2TS = "video/mp2ts";
+const char *MEDIA_MIMETYPE_CONTAINER_AVI = "video/avi";
+const char *MEDIA_MIMETYPE_CONTAINER_MPEG2PS = "video/mp2p";
+
+const char *MEDIA_MIMETYPE_TEXT_3GPP = "text/3gpp-tt";
+const char *MEDIA_MIMETYPE_TEXT_SUBRIP = "application/x-subrip";
+const char *MEDIA_MIMETYPE_TEXT_VTT = "text/vtt";
+const char *MEDIA_MIMETYPE_TEXT_CEA_608 = "text/cea-608";
+const char *MEDIA_MIMETYPE_TEXT_CEA_708 = "text/cea-708";
+const char *MEDIA_MIMETYPE_DATA_TIMED_ID3 = "application/x-id3v4";
+
+}  // namespace android
diff --git a/media/libmedia/MediaProfiles.cpp b/media/libmedia/MediaProfiles.cpp
index ff0e52e..aade69a 100644
--- a/media/libmedia/MediaProfiles.cpp
+++ b/media/libmedia/MediaProfiles.cpp
@@ -27,9 +27,11 @@
 #include <media/MediaProfiles.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <OMX_Video.h>
+#include <sys/stat.h>
 
 namespace android {
 
+constexpr char const * const MediaProfiles::xmlFiles[];
 Mutex MediaProfiles::sLock;
 bool MediaProfiles::sIsInitialized = false;
 MediaProfiles *MediaProfiles::sInstance = NULL;
@@ -593,14 +595,19 @@
     if (!sIsInitialized) {
         char value[PROPERTY_VALUE_MAX];
         if (property_get("media.settings.xml", value, NULL) <= 0) {
-            const char *defaultXmlFile = "/etc/media_profiles.xml";
-            FILE *fp = fopen(defaultXmlFile, "r");
-            if (fp == NULL) {
-                ALOGW("could not find media config xml file");
+            const char* xmlFile = nullptr;
+            for (auto const& f : xmlFiles) {
+                if (checkXmlFile(f)) {
+                    xmlFile = f;
+                    break;
+                }
+            }
+            if (xmlFile == nullptr) {
+                ALOGW("Could not find a validated xml file. "
+                        "Using the default instance instead.");
                 sInstance = createDefaultInstance();
             } else {
-                fclose(fp);  // close the file first.
-                sInstance = createInstanceFromXmlFile(defaultXmlFile);
+                sInstance = createInstanceFromXmlFile(xmlFile);
             }
         } else {
             sInstance = createInstanceFromXmlFile(value);
@@ -838,6 +845,12 @@
     return profiles;
 }
 
+bool MediaProfiles::checkXmlFile(const char* xmlFile) {
+    struct stat fStat;
+    return stat(xmlFile, &fStat) == 0 && S_ISREG(fStat.st_mode);
+    // TODO: Add validation
+}
+
 /*static*/ MediaProfiles*
 MediaProfiles::createInstanceFromXmlFile(const char *xml)
 {
diff --git a/media/libmedia/MediaUtils.cpp b/media/libmedia/MediaUtils.cpp
index a02ca65..dc2bc82 100644
--- a/media/libmedia/MediaUtils.cpp
+++ b/media/libmedia/MediaUtils.cpp
@@ -31,6 +31,11 @@
     size_t numberOfBytes,
     size_t percentageOfTotalMem) {
 
+    if (running_with_asan()) {
+        ALOGW("Running with ASan, skip enforcing memory limitations.");
+        return;
+    }
+
     long pageSize = sysconf(_SC_PAGESIZE);
     long numPages = sysconf(_SC_PHYS_PAGES);
     size_t maxMem = SIZE_MAX;
diff --git a/media/libmedia/MediaUtils.h b/media/libmedia/MediaUtils.h
index f80dd30..a678bcc 100644
--- a/media/libmedia/MediaUtils.h
+++ b/media/libmedia/MediaUtils.h
@@ -19,6 +19,12 @@
 
 namespace android {
 
+extern "C" void __asan_init(void) __attribute__((weak));
+
+static inline int running_with_asan() {
+    return &__asan_init != 0;
+}
+
 /**
    Limit the amount of memory a process can allocate using setrlimit(RLIMIT_AS).
    The value to use will be read from the specified system property, or if the
diff --git a/media/libmedia/MidiDeviceInfo.cpp b/media/libmedia/MidiDeviceInfo.cpp
new file mode 100644
index 0000000..02efc5f
--- /dev/null
+++ b/media/libmedia/MidiDeviceInfo.cpp
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "MidiDeviceInfo"
+
+#include "MidiDeviceInfo.h"
+
+#include <binder/Parcel.h>
+#include <log/log.h>
+#include <utils/Errors.h>
+#include <utils/String16.h>
+
+namespace android {
+namespace media {
+namespace midi {
+
+// The constant values need to be kept in sync with MidiDeviceInfo.java.
+// static
+const char* const MidiDeviceInfo::PROPERTY_NAME = "name";
+const char* const MidiDeviceInfo::PROPERTY_MANUFACTURER = "manufacturer";
+const char* const MidiDeviceInfo::PROPERTY_PRODUCT = "product";
+const char* const MidiDeviceInfo::PROPERTY_VERSION = "version";
+const char* const MidiDeviceInfo::PROPERTY_SERIAL_NUMBER = "serial_number";
+const char* const MidiDeviceInfo::PROPERTY_ALSA_CARD = "alsa_card";
+const char* const MidiDeviceInfo::PROPERTY_ALSA_DEVICE = "alsa_device";
+
+String16 MidiDeviceInfo::getProperty(const char* propertyName) {
+    String16 value;
+    if (mProperties.getString(String16(propertyName), &value)) {
+        return value;
+    } else {
+        return String16();
+    }
+}
+
+#define RETURN_IF_FAILED(calledOnce)                                     \
+    {                                                                    \
+        status_t returnStatus = calledOnce;                              \
+        if (returnStatus) {                                              \
+            ALOGE("Failed at %s:%d (%s)", __FILE__, __LINE__, __func__); \
+            return returnStatus;                                         \
+         }                                                               \
+    }
+
+status_t MidiDeviceInfo::writeToParcel(Parcel* parcel) const {
+    // Needs to be kept in sync with code in MidiDeviceInfo.java
+    RETURN_IF_FAILED(parcel->writeInt32(mType));
+    RETURN_IF_FAILED(parcel->writeInt32(mId));
+    RETURN_IF_FAILED(parcel->writeInt32((int32_t)mInputPortNames.size()));
+    RETURN_IF_FAILED(parcel->writeInt32((int32_t)mOutputPortNames.size()));
+    RETURN_IF_FAILED(writeStringVector(parcel, mInputPortNames));
+    RETURN_IF_FAILED(writeStringVector(parcel, mOutputPortNames));
+    RETURN_IF_FAILED(parcel->writeInt32(mIsPrivate ? 1 : 0));
+    RETURN_IF_FAILED(mProperties.writeToParcel(parcel));
+    // This corresponds to "extra" properties written by Java code
+    RETURN_IF_FAILED(mProperties.writeToParcel(parcel));
+    return OK;
+}
+
+status_t MidiDeviceInfo::readFromParcel(const Parcel* parcel) {
+    // Needs to be kept in sync with code in MidiDeviceInfo.java
+    RETURN_IF_FAILED(parcel->readInt32(&mType));
+    RETURN_IF_FAILED(parcel->readInt32(&mId));
+    int32_t inputPortCount;
+    RETURN_IF_FAILED(parcel->readInt32(&inputPortCount));
+    int32_t outputPortCount;
+    RETURN_IF_FAILED(parcel->readInt32(&outputPortCount));
+    RETURN_IF_FAILED(readStringVector(parcel, &mInputPortNames, inputPortCount));
+    RETURN_IF_FAILED(readStringVector(parcel, &mOutputPortNames, outputPortCount));
+    int32_t isPrivate;
+    RETURN_IF_FAILED(parcel->readInt32(&isPrivate));
+    mIsPrivate = isPrivate == 1;
+    RETURN_IF_FAILED(mProperties.readFromParcel(parcel));
+    // Ignore "extra" properties as they may contain Java Parcelables
+    return OK;
+}
+
+status_t MidiDeviceInfo::readStringVector(
+        const Parcel* parcel, Vector<String16> *vectorPtr, size_t defaultLength) {
+    std::unique_ptr<std::vector<std::unique_ptr<String16>>> v;
+    status_t result = parcel->readString16Vector(&v);
+    if (result != OK) return result;
+    vectorPtr->clear();
+    if (v.get() != nullptr) {
+        for (const auto& iter : *v) {
+            if (iter.get() != nullptr) {
+                vectorPtr->push_back(*iter);
+            } else {
+                vectorPtr->push_back(String16());
+            }
+        }
+    } else {
+        vectorPtr->resize(defaultLength);
+    }
+    return OK;
+}
+
+status_t MidiDeviceInfo::writeStringVector(Parcel* parcel, const Vector<String16>& vector) const {
+    std::vector<String16> v;
+    for (size_t i = 0; i < vector.size(); ++i) {
+        v.push_back(vector[i]);
+    }
+    return parcel->writeString16Vector(v);
+}
+
+// Vector does not define operator==
+static inline bool areVectorsEqual(const Vector<String16>& lhs, const Vector<String16>& rhs) {
+    if (lhs.size() != rhs.size()) return false;
+    for (size_t i = 0; i < lhs.size(); ++i) {
+        if (lhs[i] != rhs[i]) return false;
+    }
+    return true;
+}
+
+bool operator==(const MidiDeviceInfo& lhs, const MidiDeviceInfo& rhs) {
+    return (lhs.mType == rhs.mType && lhs.mId == rhs.mId &&
+            areVectorsEqual(lhs.mInputPortNames, rhs.mInputPortNames) &&
+            areVectorsEqual(lhs.mOutputPortNames, rhs.mOutputPortNames) &&
+            lhs.mProperties == rhs.mProperties &&
+            lhs.mIsPrivate == rhs.mIsPrivate);
+}
+
+}  // namespace midi
+}  // namespace media
+}  // namespace android
diff --git a/media/libmedia/OMXBuffer.cpp b/media/libmedia/OMXBuffer.cpp
new file mode 100644
index 0000000..6d54a13
--- /dev/null
+++ b/media/libmedia/OMXBuffer.cpp
@@ -0,0 +1,190 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "OMXBuffer"
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/MediaCodecBuffer.h>
+#include <media/OMXBuffer.h>
+#include <binder/IMemory.h>
+#include <binder/Parcel.h>
+#include <ui/GraphicBuffer.h>
+#include <utils/NativeHandle.h>
+
+namespace android {
+
+//static
+OMXBuffer OMXBuffer::sPreset(static_cast<sp<MediaCodecBuffer> >(NULL));
+
+OMXBuffer::OMXBuffer()
+    : mBufferType(kBufferTypeInvalid) {
+}
+
+OMXBuffer::OMXBuffer(const sp<MediaCodecBuffer>& codecBuffer)
+    : mBufferType(kBufferTypePreset),
+      mRangeOffset(codecBuffer != NULL ? codecBuffer->offset() : 0),
+      mRangeLength(codecBuffer != NULL ? codecBuffer->size() : 0) {
+}
+
+OMXBuffer::OMXBuffer(OMX_U32 rangeOffset, OMX_U32 rangeLength)
+    : mBufferType(kBufferTypePreset),
+      mRangeOffset(rangeOffset),
+      mRangeLength(rangeLength) {
+}
+
+OMXBuffer::OMXBuffer(const sp<IMemory> &mem)
+    : mBufferType(kBufferTypeSharedMem),
+      mMem(mem) {
+}
+
+OMXBuffer::OMXBuffer(const sp<GraphicBuffer> &gbuf)
+    : mBufferType(kBufferTypeANWBuffer),
+      mGraphicBuffer(gbuf) {
+}
+
+OMXBuffer::OMXBuffer(const sp<NativeHandle> &handle)
+    : mBufferType(kBufferTypeNativeHandle),
+      mNativeHandle(handle) {
+}
+
+OMXBuffer::OMXBuffer(const hidl_memory &hidlMemory)
+    : mBufferType(kBufferTypeHidlMemory),
+      mHidlMemory(hidlMemory) {
+}
+
+OMXBuffer::~OMXBuffer() {
+}
+
+status_t OMXBuffer::writeToParcel(Parcel *parcel) const {
+    CHECK(mBufferType != kBufferTypeHidlMemory);
+    parcel->writeInt32(mBufferType);
+
+    switch(mBufferType) {
+        case kBufferTypePreset:
+        {
+            status_t err = parcel->writeUint32(mRangeOffset);
+            if (err != OK) {
+                return err;
+            }
+            return parcel->writeUint32(mRangeLength);
+        }
+
+        case kBufferTypeSharedMem:
+        {
+            return parcel->writeStrongBinder(IInterface::asBinder(mMem));
+        }
+
+        case kBufferTypeANWBuffer:
+        {
+            if (mGraphicBuffer == NULL) {
+                return parcel->writeBool(false);
+            }
+            status_t err = parcel->writeBool(true);
+            if (err != OK) {
+                return err;
+            }
+            return parcel->write(*mGraphicBuffer);
+        }
+
+        case kBufferTypeNativeHandle:
+        {
+            return parcel->writeNativeHandle(mNativeHandle->handle());
+        }
+
+        default:
+            return BAD_VALUE;
+    }
+    return BAD_VALUE;
+}
+
+status_t OMXBuffer::readFromParcel(const Parcel *parcel) {
+    BufferType bufferType = (BufferType) parcel->readInt32();
+    CHECK(bufferType != kBufferTypeHidlMemory);
+
+    switch(bufferType) {
+        case kBufferTypePreset:
+        {
+            status_t err = parcel->readUint32(&mRangeOffset);
+            if (err != OK) {
+                return err;
+            }
+            err = parcel->readUint32(&mRangeLength);
+            if (err != OK) {
+                return err;
+            }
+            break;
+        }
+
+        case kBufferTypeSharedMem:
+        {
+            mMem = interface_cast<IMemory>(parcel->readStrongBinder());
+            break;
+        }
+
+        case kBufferTypeANWBuffer:
+        {
+            bool notNull;
+            status_t err = parcel->readBool(&notNull);
+            if (err != OK) {
+                return err;
+            }
+            if (notNull) {
+                sp<GraphicBuffer> buffer = new GraphicBuffer();
+                status_t err = parcel->read(*buffer);
+                if (err != OK) {
+                    return err;
+                }
+                mGraphicBuffer = buffer;
+            } else {
+                mGraphicBuffer = nullptr;
+            }
+            break;
+        }
+
+        case kBufferTypeNativeHandle:
+        {
+            sp<NativeHandle> handle = NativeHandle::create(
+                    parcel->readNativeHandle(), true /* ownsHandle */);
+
+            mNativeHandle = handle;
+            break;
+        }
+
+        default:
+            return BAD_VALUE;
+    }
+
+    mBufferType = bufferType;
+    return OK;
+}
+
+OMXBuffer& OMXBuffer::operator=(OMXBuffer&& source) {
+    mBufferType = std::move(source.mBufferType);
+    mRangeOffset = std::move(source.mRangeOffset);
+    mRangeLength = std::move(source.mRangeLength);
+    mMem = std::move(source.mMem);
+    mGraphicBuffer = std::move(source.mGraphicBuffer);
+    mNativeHandle = std::move(source.mNativeHandle);
+    mHidlMemory = std::move(source.mHidlMemory);
+    return *this;
+}
+
+} // namespace android
+
+
+
+
diff --git a/media/libmedia/ToneGenerator.cpp b/media/libmedia/ToneGenerator.cpp
deleted file mode 100644
index 7a72237..0000000
--- a/media/libmedia/ToneGenerator.cpp
+++ /dev/null
@@ -1,1656 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "ToneGenerator"
-
-#include <math.h>
-#include <utils/Log.h>
-#include <cutils/properties.h>
-#include "media/ToneGenerator.h"
-
-
-namespace android {
-
-
-// Descriptors for all available tones (See ToneGenerator::ToneDescriptor class declaration for details)
-const ToneGenerator::ToneDescriptor ToneGenerator::sToneDescriptors[] = {
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1336, 941, 0 }, 0, 0},
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_0
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1209, 697, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_1
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1336, 697, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_2
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1477, 697, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_3
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1209, 770, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_4
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1336, 770, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_5
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1477, 770, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_6
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1209, 852, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_7
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1336, 852, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_8
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1477, 852, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_9
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1209, 941, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_S
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1477, 941, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_P
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1633, 697, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_A
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1633, 770, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                             // TONE_DTMF_B
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1633, 852, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_C
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 1633, 941, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_DTMF_D
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 425, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_SUP_DIAL
-        { .segments = { { .duration = 500 , .waveFreq = { 425, 0 }, 0, 0},
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0},
-                           { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_SUP_BUSY
-        { .segments = { { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_SUP_CONGESTION
-        { .segments = { { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                              // TONE_SUP_RADIO_ACK
-        { .segments = { { .duration = 200, .waveFreq = { 425, 0 }, 0, 0},
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0},
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 2,
-          .repeatSegment = 0 },                              // TONE_SUP_RADIO_NOTAVAIL
-        { .segments = { { .duration = 330, .waveFreq = { 950, 1400, 1800, 0 }, 0, 0},
-                        { .duration = 1000, .waveFreq = { 0 }, 0, 0},
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_SUP_ERROR
-        { .segments = { { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
-                        { .duration = 600, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
-                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_SUP_CALL_WAITING
-        { .segments = { { .duration = 1000, .waveFreq = { 425, 0 }, 0, 0 },
-                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_SUP_RINGTONE
-        { .segments = { { .duration = 40, .waveFreq = { 400, 1200, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                              // TONE_PROP_BEEP
-        { .segments = { { .duration = 100, .waveFreq = { 1200, 0 }, 0, 0 },
-                        { .duration = 100, .waveFreq = { 0 }, 0, 0  },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 1,
-          .repeatSegment = 0 },                              // TONE_PROP_ACK
-        { .segments = { { .duration = 400, .waveFreq = { 300, 400, 500, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                              // TONE_PROP_NACK
-        { .segments = { { .duration = 200, .waveFreq = { 400, 1200, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                              // TONE_PROP_PROMPT
-        { .segments = { { .duration = 40, .waveFreq = { 400, 1200, 0 }, 0, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 40, .waveFreq = { 400, 1200, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                             // TONE_PROP_BEEP2
-        { .segments = { { .duration = 250, .waveFreq = { 440, 0 }, 0, 0 },
-                        { .duration = 250, .waveFreq = { 620, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_SUP_INTERCEPT
-        { .segments = { { .duration = 250, .waveFreq = { 440, 0 }, 0, 0 },
-                        { .duration = 250, .waveFreq = { 620, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 7,
-          .repeatSegment = 0 },                             // TONE_SUP_INTERCEPT_ABBREV
-        { .segments = { { .duration = 250, .waveFreq = { 480, 620, 0 }, 0, 0 },
-                        { .duration = 250, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 7,
-          .repeatSegment = 0 },                             // TONE_SUP_CONGESTION_ABBREV
-        { .segments = { { .duration = 100, .waveFreq = { 350, 440, 0 }, 0, 0 },
-                        { .duration = 100, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 2,
-          .repeatSegment = 0 },                             // TONE_SUP_CONFIRM
-        { .segments = { { .duration = 100, .waveFreq = { 480, 0 }, 0, 0 },
-                        { .duration = 100, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 3,
-          .repeatSegment = 0 },                              // TONE_SUP_PIP
-        { .segments = {{ .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 425, 0 }, 0, 0},
-                       { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_CDMA_DIAL_TONE_LITE
-        { .segments = { { .duration = 2000, .waveFreq = { 440, 480, 0 }, 0, 0 },
-                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_CDMA_NETWORK_USA_RINGBACK
-        { .segments = { { .duration = 250, .waveFreq = { 440, 0 }, 0, 0 },
-                        { .duration = 250, .waveFreq = { 620, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt =  ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                             // TONE_CDMA_INTERCEPT
-        { .segments = { { .duration = 250, .waveFreq = { 440, 0 }, 0, 0 },
-                        { .duration = 250, .waveFreq = { 620, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt =  0,
-          .repeatSegment = 0 },                             // TONE_CDMA_ABBR_INTERCEPT
-        { .segments = { { .duration = 250, .waveFreq = { 480, 620, 0 }, 0, 0 },
-                        { .duration = 250, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_CDMA_REORDER
-        { .segments = { { .duration = 250, .waveFreq = { 480, 620, 0 }, 0, 0 },
-                        { .duration = 250, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 7,
-          .repeatSegment = 0 },                              // TONE_CDMA_ABBR_REORDER
-        { .segments = { { .duration = 500, .waveFreq = { 480, 620, 0 }, 0, 0 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_CDMA_NETWORK_BUSY
-        { .segments = { { .duration = 100, .waveFreq = { 350, 440, 0 }, 0, 0 },
-                        { .duration = 100, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 2,
-          .repeatSegment = 0 },                              // TONE_CDMA_CONFIRM
-        { .segments = { { .duration = 500, .waveFreq = { 660, 1000, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                              // TONE_CDMA_ANSWER
-        { .segments = { { .duration = 300, .waveFreq = { 440, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                              // TONE_CDMA_NETWORK_CALLWAITING
-        { .segments = { { .duration = 100, .waveFreq = { 480, 0 }, 0, 0 },
-                        { .duration = 100, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 3,
-          .repeatSegment = 0 },                              // TONE_CDMA_PIP
-
-        { .segments = { { .duration = 32, .waveFreq = { 2091, 0}, 0, 0 },
-                        { .duration = 64, .waveFreq = { 2556, 0}, 19, 0},
-                        { .duration = 32, .waveFreq = { 2091, 0}, 0, 0},
-                        { .duration = 48, .waveFreq = { 2556, 0}, 0, 0},
-                        { .duration = 4000, .waveFreq = { 0 }, 0, 0},
-                        { .duration = 0,  .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                             // TONE_CDMA_CALL_SIGNAL_ISDN_NORMAL
-        { .segments = { { .duration = 32, .waveFreq = { 2091, 0}, 0, 0 },
-                        { .duration = 64, .waveFreq = { 2556, 0}, 7, 0 },
-                        { .duration = 32, .waveFreq = { 2091, 0}, 0, 0 },
-                        { .duration = 400, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 32,  .waveFreq = { 2091, 0}, 0, 0 },
-                        { .duration = 64,  .waveFreq = { 2556, 0}, 7, 4 },
-                        { .duration = 32,  .waveFreq = { 2091, 0}, 0, 0 },
-                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0,    .waveFreq = { 0 }, 0, 0 } },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                              // TONE_CDMA_CALL_SIGNAL_ISDN_INTERGROUP
-        { .segments = { { .duration = 32, .waveFreq = { 2091, 0}, 0, 0 },
-                        { .duration = 64, .waveFreq = { 2556, 0}, 3, 0 },
-                        { .duration = 16, .waveFreq = { 2091, 0}, 0, 0 },
-                        { .duration = 200, .waveFreq = { 0 },     0, 0 },
-                        { .duration = 32, .waveFreq = { 2091, 0}, 0, 0 },
-                        { .duration = 64, .waveFreq = { 2556, 0}, 3, 4 },
-                        { .duration = 16, .waveFreq = { 2091, 0}, 0, 0 },
-                        { .duration = 200, .waveFreq = { 0 },     0, 0 },
-                        { .duration = 0,   .waveFreq = { 0 },     0, 0 } },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                            // TONE_CDMA_CALL_SIGNAL_ISDN_SP_PRI
-        { .segments = { { .duration = 0,  .waveFreq = { 0 }, 0, 0} },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                            // TONE_CDMA_CALL_SIGNAL_ISDN_PAT3
-        { .segments = { { .duration = 32, .waveFreq = { 2091, 0 }, 0, 0 },
-                        { .duration = 64, .waveFreq = { 2556, 0 }, 4, 0 },
-                        { .duration = 20, .waveFreq = { 2091, 0 }, 0, 0 },
-                        { .duration = 0,  .waveFreq = { 0 }      , 0, 0 } },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                             // TONE_CDMA_CALL_SIGNAL_ISDN_PING_RING
-        { .segments = { { .duration = 0,  .waveFreq = { 0 }, 0, 0} },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                             // TONE_CDMA_CALL_SIGNAL_ISDN_PAT5
-        { .segments = { { .duration = 0,  .waveFreq = { 0 }, 0, 0} },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                             // TONE_CDMA_CALL_SIGNAL_ISDN_PAT6
-        { .segments = { { .duration = 0,  .waveFreq = { 0 }, 0, 0} },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                             // TONE_CDMA_CALL_SIGNAL_ISDN_PAT7
-
-        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 39, 0 },
-                        { .duration = 4000, .waveFreq = { 0 },     0, 0 },
-                        { .duration = 0,    .waveFreq = { 0 },     0, 0 } },
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_L
-        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 39, 0 },
-                        { .duration = 4000, .waveFreq = { 0 },     0, 0 },
-                        { .duration = 0,    .waveFreq = { 0 },     0, 0 } },
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_MED_L
-        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 39, 0 },
-                        { .duration = 4000, .waveFreq = { 0 },     0, 0 },
-                        { .duration = 0,    .waveFreq = { 0 },     0, 0 } },
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_LOW_L
-        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 15, 0 },
-                        { .duration = 400, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 } },
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_SS
-        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 15, 0 },
-                        { .duration = 400, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_MED_SS
-        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 15, 0 },
-                        { .duration = 400, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_LOW_SS
-        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 15, 6 },
-                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_SSL
-        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 15, 6 },
-                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_MED_SSL
-        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 15, 6 },
-                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_LOW_SSL
-        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                          { .duration = 25, .waveFreq = { 4000, 0 }, 19, 0 },
-                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 19, 3 },
-                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_SS_2
-        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 19, 0 },
-                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 19, 3 },
-                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_MED_SS_2
-        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 19, 0 },
-                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 19, 3 },
-                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_LOW_SS_2
-        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 0 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 19, 3 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 6 },
-                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_SLS
-        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 0 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 19, 3 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 6 },
-                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_MED_SLS
-        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 0 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 19, 3 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 6 },
-                        { .duration = 3000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_LOW_SLS
-        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 0 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 3 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 6 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 9, 9 },
-                        { .duration = 2500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_S_X4
-        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 0 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 3 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 6 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 9, 9 },
-                        { .duration = 2500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_MED_S_X4
-        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 0 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 3 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 6 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 9, 9 },
-                        { .duration = 2500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_LOW_S_X4
-        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 19, 0 },
-                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_PBX_L
-        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 19, 0 },
-                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_MED_PBX_L
-        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 19, 0 },
-                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_LOW_PBX_L
-        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 3 },
-                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_PBX_SS
-        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 3 },
-                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_MED_PBX_SS
-        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 3 },
-                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_LOW_PBX_SS
-        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 15, 6 },
-                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_PBX_SSL
-        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 15, 6 },
-                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_MED_PBX_SSL
-        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 15, 6 },
-                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_LOW_PBX_SSL
-        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 15, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 6 },
-                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_PBX_SLS
-        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 15, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 6 },
-                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_MED_PBX_SLS
-        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 15, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 6 },
-                        { .duration = 1000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-           .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_LOW_PBX_SLS
-        { .segments = { { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 6 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 3700, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 4000, 0 }, 7, 9 },
-                        { .duration = 800, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_HIGH_PBX_S_X4
-        { .segments = { { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 6 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2600, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 2900, 0 }, 7, 9 },
-                        { .duration = 800, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_MED_PBX_S_X4
-        { .segments = { { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 3 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 6 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1300, 0 }, 0, 0 },
-                        { .duration = 25, .waveFreq = { 1450, 0 }, 7, 9 },
-                        { .duration = 800, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                           // TONE_CDMA_LOW_PBX_S_X4
-
-        { .segments = { { .duration = 62, .waveFreq = { 1109, 0 }, 0, 0 },
-                        { .duration = 62, .waveFreq = { 784, 0 },  0, 0 },
-                        { .duration = 62, .waveFreq = { 740, 0 },  0, 0 },
-                        { .duration = 62, .waveFreq = { 622, 0 },  0, 0 },
-                        { .duration = 62, .waveFreq = { 1109, 0 }, 0, 0 },
-                        { .duration = 0,  .waveFreq = { 0 },       0, 0 } },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                            // TONE_CDMA_ALERT_NETWORK_LITE
-        { .segments = { { .duration = 62, .waveFreq = { 1245, 0 }, 0, 0 },
-                        { .duration = 62, .waveFreq = { 659, 0 },  2, 0 },
-                        { .duration = 62, .waveFreq = { 1245, 0 }, 0, 0 },
-                        { .duration = 0,  .waveFreq = { 0 },       0, 0 } },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                            // TONE_CDMA_ALERT_AUTOREDIAL_LITE
-        { .segments = { { .duration = 400, .waveFreq = { 1150, 770, 0 }, 0, 0 },
-                        { .duration = 0,   .waveFreq = { 0 },            0, 0 } },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                            // TONE_CDMA_ONE_MIN_BEEP
-        { .segments = { { .duration = 120, .waveFreq = { 941, 1477, 0 }, 0, 0 },
-                        { .duration = 0,   .waveFreq = { 0 },            0, 0 } },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                            // TONE_CDMA_KEYPAD_VOLUME_KEY_LITE
-        { .segments = { { .duration = 375, .waveFreq = { 587, 0 }, 0, 0 },
-                        { .duration = 125, .waveFreq = { 1175, 0 }, 0, 0 },
-                        { .duration = 0,   .waveFreq = { 0 },       0, 0 } },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                            // TONE_CDMA_PRESSHOLDKEY_LITE
-        { .segments = { { .duration = 62, .waveFreq = { 587, 0 }, 0, 0 },
-                        { .duration = 62, .waveFreq = { 784, 0 }, 0, 0 },
-                        { .duration = 62, .waveFreq = { 831, 0 }, 0, 0 },
-                        { .duration = 62, .waveFreq = { 784, 0 }, 0, 0 },
-                        { .duration = 62, .waveFreq = { 1109, 0 }, 0, 0 },
-                        { .duration = 62, .waveFreq = { 784, 0 }, 0, 0 },
-                        { .duration = 62, .waveFreq = { 831, 0 }, 0, 0 },
-                        { .duration = 62, .waveFreq = { 784, 0 }, 0, 0 },
-                        { .duration = 0,  .waveFreq = { 0 },      0, 0 } },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                             // TONE_CDMA_ALERT_INCALL_LITE
-        { .segments = { { .duration = 125, .waveFreq = { 941, 0 }, 0, 0 },
-                        { .duration = 10,  .waveFreq = { 0 },      2, 0 },
-                        { .duration = 4990, .waveFreq = { 0 },     0, 0 },
-                        { .duration = 0,    .waveFreq = { 0 },     0, 0 } },
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                            // TONE_CDMA_EMERGENCY_RINGBACK
-        { .segments = { { .duration = 125, .waveFreq = { 1319, 0 }, 0, 0 },
-                        { .duration = 125, .waveFreq = { 0 },       0, 0 },
-                        { .duration = 0,   .waveFreq = { 0 },       0, 0 } },
-          .repeatCnt = 2,
-          .repeatSegment = 0 },                            // TONE_CDMA_ALERT_CALL_GUARD
-        { .segments = { { .duration = 125, .waveFreq = { 1047, 0 }, 0, 0 },
-                        { .duration = 125, .waveFreq = { 370,  0 }, 0, 0 },
-                        { .duration = 0,   .waveFreq = { 0 },       0, 0 } },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                            // TONE_CDMA_SOFT_ERROR_LITE
-        { .segments = { { .duration = 125, .waveFreq = { 1480, 0 }, 0, 0 },
-                        { .duration = 125, .waveFreq = { 1397, 0 }, 0, 0 },
-                        { .duration = 125, .waveFreq = { 784, 0 },  0, 0 },
-                        { .duration = 0,   .waveFreq = { 0 },       0, 0 } },
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                            // TONE_CDMA_CALLDROP_LITE
-
-        { .segments = { { .duration = 500, .waveFreq = { 425, 0 }, 0, 0 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                           // TONE_CDMA_NETWORK_BUSY_ONE_SHOT
-        { .segments = { { .duration = 400, .waveFreq = { 1150, 770 }, 0, 0 },
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                           // TONE_CDMA_ABBR_ALERT
-          { .segments = { { .duration = 0, .waveFreq = { 0 }, 0, 0 }},
-          .repeatCnt = 0,
-          .repeatSegment = 0 },                            // TONE_CDMA_SIGNAL_OFF
-
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 350, 440, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_ANSI_DIAL
-        { .segments = { { .duration = 500, .waveFreq = { 480, 620, 0 }, 0, 0 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_ANSI_BUSY
-        { .segments = { { .duration = 250, .waveFreq = { 480, 620, 0 }, 0, 0 },
-                        { .duration = 250, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_ANSI_CONGESTION
-        { .segments = { { .duration = 300, .waveFreq = { 440, 0 }, 0, 0 },
-                        { .duration = 9700, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 100, .waveFreq = { 440, 0 }, 0, 0 },
-                        { .duration = 100, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 100, .waveFreq = { 440, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 1 },                              // TONE_ANSI_CALL_WAITING
-        { .segments = { { .duration = 2000, .waveFreq = { 440, 480, 0 }, 0, 0 },
-                        { .duration = 4000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_ANSI_RINGTONE
-        { .segments = { { .duration = ToneGenerator::TONEGEN_INF, .waveFreq = { 400, 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_JAPAN_DIAL
-        { .segments = { { .duration = 500, .waveFreq = { 400, 0 }, 0, 0 },
-                        { .duration = 500, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_JAPAN_BUSY
-        { .segments = { { .duration = 1000, .waveFreq = { 400, 0 }, 0, 0 },
-                        { .duration = 2000, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_JAPAN_RADIO_ACK
-        { .segments = { { .duration = 400, .waveFreq = { 400, 450, 0 }, 0, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 400, .waveFreq = { 400, 450, 0 }, 0, 0 },
-                        { .duration = 2000, .waveFreq = { 0 }, 0, 0},
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_GB_RINGTONE
-        { .segments = { { .duration = 400, .waveFreq = { 400, 450, 0 }, 0, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 400, .waveFreq = { 400, 450, 0 }, 0, 0 },
-                        { .duration = 2000, .waveFreq = { 0 }, 0, 0},
-                        { .duration = 0, .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_AUSTRALIA_RINGTONE
-        { .segments = { { .duration = 375, .waveFreq = { 425, 0 }, 0, 0 },
-                        { .duration = 375, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_AUSTRALIA_BUSY
-        { .segments = { { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
-                        { .duration = 200, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 200, .waveFreq = { 425, 0 }, 0, 0 },
-                        { .duration = 4400, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_AUSTRALIA_CALL_WAITING
-        { .segments = { { .duration = 375, .waveFreq = { 425, 0 }, 0, 0 },
-                        { .duration = 375, .waveFreq = { 0 }, 0, 0 },
-                        { .duration = 0 , .waveFreq = { 0 }, 0, 0}},
-          .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_AUSTRALIA_CONGESTION
-};
-
-// Used by ToneGenerator::getToneForRegion() to convert user specified supervisory tone type
-// to actual tone for current region.
-const unsigned char /*tone_type*/ ToneGenerator::sToneMappingTable[NUM_REGIONS-1][NUM_SUP_TONES] = {
-        {   // ANSI
-            TONE_ANSI_DIAL,             // TONE_SUP_DIAL
-            TONE_ANSI_BUSY,             // TONE_SUP_BUSY
-            TONE_ANSI_CONGESTION,       // TONE_SUP_CONGESTION
-            TONE_SUP_RADIO_ACK,         // TONE_SUP_RADIO_ACK
-            TONE_SUP_RADIO_NOTAVAIL,    // TONE_SUP_RADIO_NOTAVAIL
-            TONE_SUP_ERROR,             // TONE_SUP_ERROR
-            TONE_ANSI_CALL_WAITING,     // TONE_SUP_CALL_WAITING
-            TONE_ANSI_RINGTONE          // TONE_SUP_RINGTONE
-        },
-        {   // JAPAN
-            TONE_JAPAN_DIAL,             // TONE_SUP_DIAL
-            TONE_JAPAN_BUSY,             // TONE_SUP_BUSY
-            TONE_SUP_CONGESTION,         // TONE_SUP_CONGESTION
-            TONE_JAPAN_RADIO_ACK,        // TONE_SUP_RADIO_ACK
-            TONE_SUP_RADIO_NOTAVAIL,     // TONE_SUP_RADIO_NOTAVAIL
-            TONE_SUP_ERROR,              // TONE_SUP_ERROR
-            TONE_SUP_CALL_WAITING,       // TONE_SUP_CALL_WAITING
-            TONE_SUP_RINGTONE            // TONE_SUP_RINGTONE
-        },
-        {   // GB
-            TONE_SUP_DIAL,               // TONE_SUP_DIAL
-            TONE_SUP_BUSY,               // TONE_SUP_BUSY
-            TONE_SUP_CONGESTION,         // TONE_SUP_CONGESTION
-            TONE_SUP_RADIO_ACK,          // TONE_SUP_RADIO_ACK
-            TONE_SUP_RADIO_NOTAVAIL,     // TONE_SUP_RADIO_NOTAVAIL
-            TONE_SUP_ERROR,              // TONE_SUP_ERROR
-            TONE_SUP_CALL_WAITING,       // TONE_SUP_CALL_WAITING
-            TONE_GB_RINGTONE             // TONE_SUP_RINGTONE
-        },
-        {   // AUSTRALIA
-            TONE_ANSI_DIAL,             // TONE_SUP_DIAL
-            TONE_AUSTRALIA_BUSY,        // TONE_SUP_BUSY
-            TONE_AUSTRALIA_CONGESTION,  // TONE_SUP_CONGESTION
-            TONE_SUP_RADIO_ACK,         // TONE_SUP_RADIO_ACK
-            TONE_SUP_RADIO_NOTAVAIL,    // TONE_SUP_RADIO_NOTAVAIL
-            TONE_SUP_ERROR,             // TONE_SUP_ERROR
-            TONE_AUSTRALIA_CALL_WAITING,// TONE_SUP_CALL_WAITING
-            TONE_AUSTRALIA_RINGTONE     // TONE_SUP_RINGTONE
-        }
-};
-
-
-////////////////////////////////////////////////////////////////////////////////
-//                           ToneGenerator class Implementation
-////////////////////////////////////////////////////////////////////////////////
-
-
-//---------------------------------- public methods ----------------------------
-
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        ToneGenerator::ToneGenerator()
-//
-//    Description:    Constructor. Initializes the tone sequencer, intantiates required sine wave
-//        generators, instantiates output audio track.
-//
-//    Input:
-//        streamType:        Type of stream used for tone playback
-//        volume:            volume applied to tone (0.0 to 1.0)
-//
-//    Output:
-//        none
-//
-////////////////////////////////////////////////////////////////////////////////
-ToneGenerator::ToneGenerator(audio_stream_type_t streamType, float volume, bool threadCanCallJava) {
-
-    ALOGV("ToneGenerator constructor: streamType=%d, volume=%f", streamType, volume);
-
-    mState = TONE_IDLE;
-
-    if (AudioSystem::getOutputSamplingRate(&mSamplingRate, streamType) != NO_ERROR) {
-        ALOGE("Unable to marshal AudioFlinger");
-        return;
-    }
-    mThreadCanCallJava = threadCanCallJava;
-    mStreamType = streamType;
-    mVolume = volume;
-    mpToneDesc = NULL;
-    mpNewToneDesc = NULL;
-    // Generate tone by chunks of 20 ms to keep cadencing precision
-    mProcessSize = (mSamplingRate * 20) / 1000;
-
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("gsm.operator.iso-country", value, "") == 0) {
-        property_get("gsm.sim.operator.iso-country", value, "");
-    }
-    if (strstr(value, "us") != NULL ||
-        strstr(value, "ca") != NULL) {
-        mRegion = ANSI;
-    } else if (strstr(value, "jp") != NULL) {
-        mRegion = JAPAN;
-    } else if (strstr(value, "gb") != NULL) {
-        mRegion = GB;
-    } else if (strstr(value, "au") != NULL) {
-        mRegion = AUSTRALIA;
-    } else {
-        mRegion = CEPT;
-    }
-
-    if (initAudioTrack()) {
-        ALOGV("ToneGenerator INIT OK, time: %d", (unsigned int)(systemTime()/1000000));
-    } else {
-        ALOGV("!!!ToneGenerator INIT FAILED!!!");
-    }
-}
-
-
-
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        ToneGenerator::~ToneGenerator()
-//
-//    Description:    Destructor. Stop sound playback and delete audio track if
-//      needed and delete sine wave generators.
-//
-//    Input:
-//        none
-//
-//    Output:
-//        none
-//
-////////////////////////////////////////////////////////////////////////////////
-ToneGenerator::~ToneGenerator() {
-    ALOGV("ToneGenerator destructor");
-
-    if (mpAudioTrack != 0) {
-        stopTone();
-        ALOGV("Delete Track: %p", mpAudioTrack.get());
-        mpAudioTrack.clear();
-    }
-    clearWaveGens();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        ToneGenerator::startTone()
-//
-//    Description:    Starts tone playback.
-//
-//    Input:
-//        toneType:        Type of tone generated (values in enum tone_type)
-//        durationMs:      The tone duration in milliseconds. If the tone is limited in time by definition,
-//              the actual duration will be the minimum of durationMs and the defined tone duration.
-//              Ommiting or setting durationMs to -1 does not limit tone duration.
-//
-//    Output:
-//        none
-//
-////////////////////////////////////////////////////////////////////////////////
-bool ToneGenerator::startTone(tone_type toneType, int durationMs) {
-    bool lResult = false;
-    status_t lStatus;
-
-    if ((toneType < 0) || (toneType >= NUM_TONES))
-        return lResult;
-
-    toneType = getToneForRegion(toneType);
-    if (toneType == TONE_CDMA_SIGNAL_OFF) {
-        return true;
-    }
-
-    if (mState == TONE_IDLE) {
-        ALOGV("startTone: try to re-init AudioTrack");
-        if (!initAudioTrack()) {
-            return lResult;
-        }
-    }
-
-    ALOGV("startTone");
-
-    mLock.lock();
-
-    // Get descriptor for requested tone
-    mpNewToneDesc = &sToneDescriptors[toneType];
-
-    mDurationMs = durationMs;
-
-    if (mState == TONE_STOPPED) {
-        ALOGV("Start waiting for previous tone to stop");
-        lStatus = mWaitCbkCond.waitRelative(mLock, seconds(3));
-        if (lStatus != NO_ERROR) {
-            ALOGE("--- start wait for stop timed out, status %d", lStatus);
-            mState = TONE_IDLE;
-            mLock.unlock();
-            return lResult;
-        }
-    }
-
-    if (mState == TONE_INIT) {
-        if (prepareWave()) {
-            ALOGV("Immediate start, time %d", (unsigned int)(systemTime()/1000000));
-            lResult = true;
-            mState = TONE_STARTING;
-            if (clock_gettime(CLOCK_MONOTONIC, &mStartTime) != 0) {
-                mStartTime.tv_sec = 0;
-            }
-            mLock.unlock();
-            mpAudioTrack->start();
-            mLock.lock();
-            if (mState == TONE_STARTING) {
-                ALOGV("Wait for start callback");
-                lStatus = mWaitCbkCond.waitRelative(mLock, seconds(3));
-                if (lStatus != NO_ERROR) {
-                    ALOGE("--- Immediate start timed out, status %d", lStatus);
-                    mState = TONE_IDLE;
-                    lResult = false;
-                }
-            }
-        } else {
-            mState = TONE_IDLE;
-        }
-    } else {
-        ALOGV("Delayed start");
-        mState = TONE_RESTARTING;
-        mStartTime.tv_sec = 0;
-        lStatus = mWaitCbkCond.waitRelative(mLock, seconds(3));
-        if (lStatus == NO_ERROR) {
-            if (mState != TONE_IDLE) {
-                lResult = true;
-            }
-            ALOGV("cond received");
-        } else {
-            ALOGE("--- Delayed start timed out, status %d", lStatus);
-            mState = TONE_IDLE;
-        }
-    }
-    mLock.unlock();
-
-    ALOGV_IF(lResult, "Tone started, time %d", (unsigned int)(systemTime()/1000000));
-    ALOGW_IF(!lResult, "Tone start failed!!!, time %d", (unsigned int)(systemTime()/1000000));
-
-    return lResult;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        ToneGenerator::stopTone()
-//
-//    Description:    Stops tone playback.
-//
-//    Input:
-//        none
-//
-//    Output:
-//        none
-//
-////////////////////////////////////////////////////////////////////////////////
-void ToneGenerator::stopTone() {
-    ALOGV("stopTone");
-
-    mLock.lock();
-    if (mState != TONE_IDLE && mState != TONE_INIT) {
-        if (mState == TONE_PLAYING || mState == TONE_STARTING || mState == TONE_RESTARTING) {
-            struct timespec stopTime;
-            // If the start time is valid, make sure that the number of audio samples produced
-            // corresponds at least to the time between the start and stop commands.
-            // This is needed in case of cold start of the output stream.
-            if ((mStartTime.tv_sec != 0) && (clock_gettime(CLOCK_MONOTONIC, &stopTime) == 0)) {
-                time_t sec = stopTime.tv_sec - mStartTime.tv_sec;
-                long nsec = stopTime.tv_nsec - mStartTime.tv_nsec;
-                if (nsec < 0) {
-                    --sec;
-                    nsec += 1000000000;
-                }
-
-                if ((sec + 1) > ((long)(INT_MAX / mSamplingRate))) {
-                    mMaxSmp = sec * mSamplingRate;
-                } else {
-                    // mSamplingRate is always > 1000
-                    sec = sec * 1000 + nsec / 1000000; // duration in milliseconds
-                    mMaxSmp = (unsigned int)(((int64_t)sec * mSamplingRate) / 1000);
-                }
-                ALOGV("stopTone() forcing mMaxSmp to %d, total for far %d", mMaxSmp,  mTotalSmp);
-            } else {
-                mState = TONE_STOPPING;
-            }
-        }
-        ALOGV("waiting cond");
-        status_t lStatus = mWaitCbkCond.waitRelative(mLock, seconds(3));
-        if (lStatus == NO_ERROR) {
-            // If the tone was restarted exit now before calling clearWaveGens();
-            if (mState != TONE_INIT) {
-                mLock.unlock();
-                return;
-            }
-            ALOGV("track stop complete, time %d", (unsigned int)(systemTime()/1000000));
-        } else {
-            ALOGE("--- Stop timed out");
-            mState = TONE_IDLE;
-            mpAudioTrack->stop();
-        }
-        clearWaveGens();
-    }
-
-    mLock.unlock();
-}
-
-//---------------------------------- private methods ---------------------------
-
-
-
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        ToneGenerator::initAudioTrack()
-//
-//    Description:    Allocates and configures AudioTrack used for PCM output.
-//
-//    Input:
-//        none
-//
-//    Output:
-//        none
-//
-////////////////////////////////////////////////////////////////////////////////
-bool ToneGenerator::initAudioTrack() {
-    // Open audio track in mono, PCM 16bit, default sampling rate.
-    mpAudioTrack = new AudioTrack();
-    ALOGV("AudioTrack(%p) created", mpAudioTrack.get());
-
-    const size_t frameCount = mProcessSize;
-    status_t status = mpAudioTrack->set(
-            mStreamType,
-            0,    // sampleRate
-            AUDIO_FORMAT_PCM_16_BIT,
-            AUDIO_CHANNEL_OUT_MONO,
-            frameCount,
-            AUDIO_OUTPUT_FLAG_FAST,
-            audioCallback,
-            this, // user
-            0,    // notificationFrames
-            0,    // sharedBuffer
-            mThreadCanCallJava,
-            AUDIO_SESSION_ALLOCATE,
-            AudioTrack::TRANSFER_CALLBACK);
-
-    if (status != NO_ERROR) {
-        ALOGE("AudioTrack(%p) set failed with error %d", mpAudioTrack.get(), status);
-        mpAudioTrack.clear();
-        return false;
-    }
-
-    mpAudioTrack->setVolume(mVolume);
-    mState = TONE_INIT;
-    return true;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        ToneGenerator::audioCallback()
-//
-//    Description:    AudioTrack callback implementation. Generates a block of
-//        PCM samples
-//        and manages tone generator sequencer: tones pulses, tone duration...
-//
-//    Input:
-//        user    reference (pointer to our ToneGenerator)
-//        info    audio buffer descriptor
-//
-//    Output:
-//        returned value: always true.
-//
-////////////////////////////////////////////////////////////////////////////////
-void ToneGenerator::audioCallback(int event, void* user, void *info) {
-
-    if (event != AudioTrack::EVENT_MORE_DATA) return;
-
-    AudioTrack::Buffer *buffer = static_cast<AudioTrack::Buffer *>(info);
-    ToneGenerator *lpToneGen = static_cast<ToneGenerator *>(user);
-    short *lpOut = buffer->i16;
-    unsigned int lNumSmp = buffer->size/sizeof(short);
-    const ToneDescriptor *lpToneDesc = lpToneGen->mpToneDesc;
-
-    if (buffer->size == 0) return;
-
-
-    // Clear output buffer: WaveGenerator accumulates into lpOut buffer
-    memset(lpOut, 0, buffer->size);
-
-    while (lNumSmp) {
-        unsigned int lReqSmp = lNumSmp < lpToneGen->mProcessSize*2 ? lNumSmp : lpToneGen->mProcessSize;
-        unsigned int lGenSmp;
-        unsigned int lWaveCmd = WaveGenerator::WAVEGEN_CONT;
-        bool lSignal = false;
-
-        lpToneGen->mLock.lock();
-
-
-        // Update pcm frame count and end time (current time at the end of this process)
-        lpToneGen->mTotalSmp += lReqSmp;
-
-        // Update tone gen state machine and select wave gen command
-        switch (lpToneGen->mState) {
-        case TONE_PLAYING:
-            lWaveCmd = WaveGenerator::WAVEGEN_CONT;
-            break;
-        case TONE_STARTING:
-            ALOGV("Starting Cbk");
-
-            lWaveCmd = WaveGenerator::WAVEGEN_START;
-            break;
-        case TONE_STOPPING:
-        case TONE_RESTARTING:
-            ALOGV("Stop/restart Cbk");
-
-            lWaveCmd = WaveGenerator::WAVEGEN_STOP;
-            lpToneGen->mNextSegSmp = TONEGEN_INF; // forced to skip state machine management below
-            break;
-        case TONE_STOPPED:
-            ALOGV("Stopped Cbk");
-            goto audioCallback_EndLoop;
-        default:
-            ALOGV("Extra Cbk");
-            goto audioCallback_EndLoop;
-        }
-
-        // Exit if tone sequence is over
-        if (lpToneDesc->segments[lpToneGen->mCurSegment].duration == 0 ||
-            lpToneGen->mTotalSmp > lpToneGen->mMaxSmp) {
-            if (lpToneGen->mState == TONE_PLAYING) {
-                lpToneGen->mState = TONE_STOPPING;
-            }
-            if (lpToneDesc->segments[lpToneGen->mCurSegment].duration == 0) {
-                goto audioCallback_EndLoop;
-            }
-            // fade out before stopping if maximum duration reached
-            lWaveCmd = WaveGenerator::WAVEGEN_STOP;
-            lpToneGen->mNextSegSmp = TONEGEN_INF; // forced to skip state machine management below
-        }
-
-        if (lpToneGen->mTotalSmp > lpToneGen->mNextSegSmp) {
-            // Time to go to next sequence segment
-
-            ALOGV("End Segment, time: %d", (unsigned int)(systemTime()/1000000));
-
-            lGenSmp = lReqSmp;
-
-            // If segment,  ON -> OFF transition : ramp volume down
-            if (lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[0] != 0) {
-                lWaveCmd = WaveGenerator::WAVEGEN_STOP;
-                unsigned int lFreqIdx = 0;
-                unsigned short lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[lFreqIdx];
-
-                while (lFrequency != 0) {
-                    WaveGenerator *lpWaveGen = lpToneGen->mWaveGens.valueFor(lFrequency);
-                    lpWaveGen->getSamples(lpOut, lGenSmp, lWaveCmd);
-                    lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[++lFreqIdx];
-                }
-                ALOGV("ON->OFF, lGenSmp: %d, lReqSmp: %d", lGenSmp, lReqSmp);
-            }
-
-            // check if we need to loop and loop for the reqd times
-            if (lpToneDesc->segments[lpToneGen->mCurSegment].loopCnt) {
-                if (lpToneGen->mLoopCounter < lpToneDesc->segments[lpToneGen->mCurSegment].loopCnt) {
-                    ALOGV ("in if loop loopCnt(%d) loopctr(%d), CurSeg(%d)",
-                          lpToneDesc->segments[lpToneGen->mCurSegment].loopCnt,
-                          lpToneGen->mLoopCounter,
-                          lpToneGen->mCurSegment);
-                    lpToneGen->mCurSegment = lpToneDesc->segments[lpToneGen->mCurSegment].loopIndx;
-                    ++lpToneGen->mLoopCounter;
-                } else {
-                    // completed loop. go to next segment
-                    lpToneGen->mLoopCounter = 0;
-                    lpToneGen->mCurSegment++;
-                    ALOGV ("in else loop loopCnt(%d) loopctr(%d), CurSeg(%d)",
-                          lpToneDesc->segments[lpToneGen->mCurSegment].loopCnt,
-                          lpToneGen->mLoopCounter,
-                          lpToneGen->mCurSegment);
-                }
-            } else {
-                lpToneGen->mCurSegment++;
-                ALOGV ("Goto next seg loopCnt(%d) loopctr(%d), CurSeg(%d)",
-                      lpToneDesc->segments[lpToneGen->mCurSegment].loopCnt,
-                      lpToneGen->mLoopCounter,
-                      lpToneGen->mCurSegment);
-
-            }
-
-            // Handle loop if last segment reached
-            if (lpToneDesc->segments[lpToneGen->mCurSegment].duration == 0) {
-                ALOGV("Last Seg: %d", lpToneGen->mCurSegment);
-
-                // Pre increment loop count and restart if total count not reached. Stop sequence otherwise
-                if (++lpToneGen->mCurCount <= lpToneDesc->repeatCnt) {
-                    ALOGV("Repeating Count: %d", lpToneGen->mCurCount);
-
-                    lpToneGen->mCurSegment = lpToneDesc->repeatSegment;
-                    if (lpToneDesc->segments[lpToneDesc->repeatSegment].waveFreq[0] != 0) {
-                        lWaveCmd = WaveGenerator::WAVEGEN_START;
-                    }
-
-                    ALOGV("New segment %d, Next Time: %d", lpToneGen->mCurSegment,
-                            (lpToneGen->mNextSegSmp*1000)/lpToneGen->mSamplingRate);
-
-                } else {
-                    lGenSmp = 0;
-                    ALOGV("End repeat, time: %d", (unsigned int)(systemTime()/1000000));
-                }
-            } else {
-                ALOGV("New segment %d, Next Time: %d", lpToneGen->mCurSegment,
-                        (lpToneGen->mNextSegSmp*1000)/lpToneGen->mSamplingRate);
-                if (lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[0] != 0) {
-                    // If next segment is not silent,  OFF -> ON transition : reset wave generator
-                    lWaveCmd = WaveGenerator::WAVEGEN_START;
-
-                    ALOGV("OFF->ON, lGenSmp: %d, lReqSmp: %d", lGenSmp, lReqSmp);
-                } else {
-                    lGenSmp = 0;
-                }
-            }
-
-            // Update next segment transition position. No harm to do it also for last segment as lpToneGen->mNextSegSmp won't be used any more
-            lpToneGen->mNextSegSmp
-                    += (lpToneDesc->segments[lpToneGen->mCurSegment].duration * lpToneGen->mSamplingRate) / 1000;
-
-        } else {
-            // Inside a segment keep tone ON or OFF
-            if (lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[0] == 0) {
-                lGenSmp = 0;  // If odd segment, tone is currently OFF
-            } else {
-                lGenSmp = lReqSmp;  // If event segment, tone is currently ON
-            }
-        }
-
-        if (lGenSmp) {
-            // If samples must be generated, call all active wave generators and acumulate waves in lpOut
-            unsigned int lFreqIdx = 0;
-            unsigned short lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[lFreqIdx];
-
-            while (lFrequency != 0) {
-                WaveGenerator *lpWaveGen = lpToneGen->mWaveGens.valueFor(lFrequency);
-                lpWaveGen->getSamples(lpOut, lGenSmp, lWaveCmd);
-                lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[++lFreqIdx];
-            }
-        }
-
-        lNumSmp -= lReqSmp;
-        lpOut += lReqSmp;
-
-audioCallback_EndLoop:
-
-        switch (lpToneGen->mState) {
-        case TONE_RESTARTING:
-            ALOGV("Cbk restarting track");
-            if (lpToneGen->prepareWave()) {
-                lpToneGen->mState = TONE_STARTING;
-                if (clock_gettime(CLOCK_MONOTONIC, &lpToneGen->mStartTime) != 0) {
-                    lpToneGen->mStartTime.tv_sec = 0;
-                }
-                // must reload lpToneDesc as prepareWave() may change mpToneDesc
-                lpToneDesc = lpToneGen->mpToneDesc;
-            } else {
-                ALOGW("Cbk restarting prepareWave() failed");
-                lpToneGen->mState = TONE_IDLE;
-                lpToneGen->mpAudioTrack->stop();
-                // Force loop exit
-                lNumSmp = 0;
-            }
-            lSignal = true;
-            break;
-        case TONE_STOPPING:
-            ALOGV("Cbk Stopping");
-            lpToneGen->mState = TONE_STOPPED;
-            // Force loop exit
-            lNumSmp = 0;
-            break;
-        case TONE_STOPPED:
-            lpToneGen->mState = TONE_INIT;
-            ALOGV("Cbk Stopped track");
-            lpToneGen->mpAudioTrack->stop();
-            // Force loop exit
-            lNumSmp = 0;
-            buffer->size = 0;
-            lSignal = true;
-            break;
-        case TONE_STARTING:
-            ALOGV("Cbk starting track");
-            lpToneGen->mState = TONE_PLAYING;
-            lSignal = true;
-            break;
-        case TONE_PLAYING:
-            break;
-        default:
-            // Force loop exit
-            lNumSmp = 0;
-            buffer->size = 0;
-            break;
-        }
-
-        if (lSignal)
-            lpToneGen->mWaitCbkCond.broadcast();
-        lpToneGen->mLock.unlock();
-    }
-}
-
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        ToneGenerator::prepareWave()
-//
-//    Description:    Prepare wave generators and reset tone sequencer state machine.
-//      mpNewToneDesc must have been initialized before calling this function.
-//    Input:
-//        none
-//
-//    Output:
-//        returned value:   true if wave generators have been created, false otherwise
-//
-////////////////////////////////////////////////////////////////////////////////
-bool ToneGenerator::prepareWave() {
-    unsigned int segmentIdx = 0;
-
-    if (mpNewToneDesc == NULL) {
-        return false;
-    }
-
-    // Remove existing wave generators if any
-    clearWaveGens();
-
-    mpToneDesc = mpNewToneDesc;
-
-    if (mDurationMs == -1) {
-        mMaxSmp = TONEGEN_INF;
-    } else {
-        if (mDurationMs > (int)(TONEGEN_INF / mSamplingRate)) {
-            mMaxSmp = (mDurationMs / 1000) * mSamplingRate;
-        } else {
-            mMaxSmp = (mDurationMs * mSamplingRate) / 1000;
-        }
-        ALOGV("prepareWave, duration limited to %d ms", mDurationMs);
-    }
-
-    while (mpToneDesc->segments[segmentIdx].duration) {
-        // Get total number of sine waves: needed to adapt sine wave gain.
-        unsigned int lNumWaves = numWaves(segmentIdx);
-        unsigned int freqIdx = 0;
-        unsigned int frequency = mpToneDesc->segments[segmentIdx].waveFreq[freqIdx];
-        while (frequency) {
-            // Instantiate a wave generator if  ot already done for this frequency
-            if (mWaveGens.indexOfKey(frequency) == NAME_NOT_FOUND) {
-                ToneGenerator::WaveGenerator *lpWaveGen =
-                        new ToneGenerator::WaveGenerator((unsigned short)mSamplingRate,
-                                frequency,
-                                TONEGEN_GAIN/lNumWaves);
-                mWaveGens.add(frequency, lpWaveGen);
-            }
-            frequency = mpNewToneDesc->segments[segmentIdx].waveFreq[++freqIdx];
-        }
-        segmentIdx++;
-    }
-
-    // Initialize tone sequencer
-    mTotalSmp = 0;
-    mCurSegment = 0;
-    mCurCount = 0;
-    mLoopCounter = 0;
-    if (mpToneDesc->segments[0].duration == TONEGEN_INF) {
-        mNextSegSmp = TONEGEN_INF;
-    } else{
-        mNextSegSmp = (mpToneDesc->segments[0].duration * mSamplingRate) / 1000;
-    }
-
-    return true;
-}
-
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        ToneGenerator::numWaves()
-//
-//    Description:    Count number of sine waves needed to generate a tone segment (e.g 2 for DTMF).
-//
-//    Input:
-//        segmentIdx        tone segment index
-//
-//    Output:
-//        returned value:    nummber of sine waves
-//
-////////////////////////////////////////////////////////////////////////////////
-unsigned int ToneGenerator::numWaves(unsigned int segmentIdx) {
-    unsigned int lCnt = 0;
-
-    if (mpToneDesc->segments[segmentIdx].duration) {
-        while (mpToneDesc->segments[segmentIdx].waveFreq[lCnt]) {
-            lCnt++;
-        }
-        lCnt++;
-    }
-
-    return lCnt;
-}
-
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        ToneGenerator::clearWaveGens()
-//
-//    Description:    Removes all wave generators.
-//
-//    Input:
-//        none
-//
-//    Output:
-//        none
-//
-////////////////////////////////////////////////////////////////////////////////
-void ToneGenerator::clearWaveGens() {
-    ALOGV("Clearing mWaveGens:");
-
-    for (size_t lIdx = 0; lIdx < mWaveGens.size(); lIdx++) {
-        delete mWaveGens.valueAt(lIdx);
-    }
-    mWaveGens.clear();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:       ToneGenerator::getToneForRegion()
-//
-//    Description:  Get correct ringtone type according to current region.
-//      The corrected ring tone type is the tone descriptor index in sToneDescriptors[].
-//
-//    Input:
-//        none
-//
-//    Output:
-//        none
-//
-////////////////////////////////////////////////////////////////////////////////
-ToneGenerator::tone_type ToneGenerator::getToneForRegion(tone_type toneType) {
-    tone_type regionTone;
-
-    if (mRegion == CEPT || toneType < FIRST_SUP_TONE || toneType > LAST_SUP_TONE) {
-        regionTone = toneType;
-    } else {
-        regionTone = (tone_type) sToneMappingTable[mRegion][toneType - FIRST_SUP_TONE];
-    }
-
-    ALOGV("getToneForRegion, tone %d, region %d, regionTone %d", toneType, mRegion, regionTone);
-
-    return regionTone;
-}
-
-
-////////////////////////////////////////////////////////////////////////////////
-//                WaveGenerator::WaveGenerator class    Implementation
-////////////////////////////////////////////////////////////////////////////////
-
-//---------------------------------- public methods ----------------------------
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        WaveGenerator::WaveGenerator()
-//
-//    Description:    Constructor.
-//
-//    Input:
-//        samplingRate:    Output sampling rate in Hz
-//        frequency:       Frequency of the sine wave to generate in Hz
-//        volume:          volume (0.0 to 1.0)
-//
-//    Output:
-//        none
-//
-////////////////////////////////////////////////////////////////////////////////
-ToneGenerator::WaveGenerator::WaveGenerator(unsigned short samplingRate,
-        unsigned short frequency, float volume) {
-    double d0;
-    double F_div_Fs;  // frequency / samplingRate
-
-    F_div_Fs = frequency / (double)samplingRate;
-    d0 = - (float)GEN_AMP * sin(2 * M_PI * F_div_Fs);
-    mS2_0 = (short)d0;
-    mS1 = 0;
-    mS2 = mS2_0;
-
-    mAmplitude_Q15 = (short)(32767. * 32767. * volume / GEN_AMP);
-    // take some margin for amplitude fluctuation
-    if (mAmplitude_Q15 > 32500)
-        mAmplitude_Q15 = 32500;
-
-    d0 = 32768.0 * cos(2 * M_PI * F_div_Fs);  // Q14*2*cos()
-    if (d0 > 32767)
-        d0 = 32767;
-    mA1_Q14 = (short) d0;
-
-    ALOGV("WaveGenerator init, mA1_Q14: %d, mS2_0: %d, mAmplitude_Q15: %d",
-            mA1_Q14, mS2_0, mAmplitude_Q15);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        WaveGenerator::~WaveGenerator()
-//
-//    Description:    Destructor.
-//
-//    Input:
-//        none
-//
-//    Output:
-//        none
-//
-////////////////////////////////////////////////////////////////////////////////
-ToneGenerator::WaveGenerator::~WaveGenerator() {
-}
-
-////////////////////////////////////////////////////////////////////////////////
-//
-//    Method:        WaveGenerator::getSamples()
-//
-//    Description:    Generates count samples of a sine wave and accumulates
-//        result in outBuffer.
-//
-//    Input:
-//        outBuffer:      Output buffer where to accumulate samples.
-//        count:          number of samples to produce.
-//        command:        special action requested (see enum gen_command).
-//
-//    Output:
-//        none
-//
-////////////////////////////////////////////////////////////////////////////////
-void ToneGenerator::WaveGenerator::getSamples(short *outBuffer,
-        unsigned int count, unsigned int command) {
-    long lS1, lS2;
-    long lA1, lAmplitude;
-    long Sample;  // current sample
-
-    // init local
-    if (command == WAVEGEN_START) {
-        lS1 = (long)0;
-        lS2 = (long)mS2_0;
-    } else {
-        lS1 = mS1;
-        lS2 = mS2;
-    }
-    lA1 = (long)mA1_Q14;
-    lAmplitude = (long)mAmplitude_Q15;
-
-    if (command == WAVEGEN_STOP) {
-        lAmplitude <<= 16;
-        if (count == 0) {
-            return;
-        }
-        long dec = lAmplitude/count;
-        // loop generation
-        while (count) {
-            count--;
-            Sample = ((lA1 * lS1) >> S_Q14) - lS2;
-            // shift delay
-            lS2 = lS1;
-            lS1 = Sample;
-            Sample = ((lAmplitude>>16) * Sample) >> S_Q15;
-            *(outBuffer++) += (short)Sample;  // put result in buffer
-            lAmplitude -= dec;
-        }
-    } else {
-        // loop generation
-        while (count) {
-            count--;
-            Sample = ((lA1 * lS1) >> S_Q14) - lS2;
-            // shift delay
-            lS2 = lS1;
-            lS1 = Sample;
-            Sample = (lAmplitude * Sample) >> S_Q15;
-            *(outBuffer++) += (short)Sample;  // put result in buffer
-        }
-    }
-
-    // save status
-    mS1 = lS1;
-    mS2 = lS2;
-}
-
-}  // end namespace android
diff --git a/media/libmedia/TypeConverter.cpp b/media/libmedia/TypeConverter.cpp
new file mode 100644
index 0000000..a6eba86
--- /dev/null
+++ b/media/libmedia/TypeConverter.cpp
@@ -0,0 +1,413 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/TypeConverter.h>
+
+namespace android {
+
+#define MAKE_STRING_FROM_ENUM(string) { #string, string }
+#define TERMINATOR { .literal = nullptr }
+
+template <>
+const OutputDeviceConverter::Table OutputDeviceConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_NONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_EARPIECE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPEAKER),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPEAKER_SAFE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_SCO),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_HDMI),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_USB),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_LINE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPDIF),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_FM),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_AUX_LINE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_IP),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BUS),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_PROXY),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_USB_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_DEFAULT),
+    // STUB must be after DEFAULT, so the latter is picked up by toString first.
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_STUB),
+    TERMINATOR
+};
+
+template <>
+const InputDeviceConverter::Table InputDeviceConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_NONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_COMMUNICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_AMBIENT),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_ALL_SCO),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_HDMI),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_VOICE_CALL),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BACK_MIC),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_USB_DEVICE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_ALL_USB),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_FM_TUNER),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_TV_TUNER),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_LINE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_SPDIF),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_LOOPBACK),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_IP),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BUS),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_PROXY),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_USB_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_DEFAULT),
+    // STUB must be after DEFAULT, so the latter is picked up by toString first.
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_STUB),
+    TERMINATOR
+};
+
+
+template <>
+const OutputFlagConverter::Table OutputFlagConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_NONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_DIRECT),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_FAST),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_HW_AV_SYNC),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_TTS),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_RAW),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_SYNC),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_DIRECT_PCM),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_MMAP_NOIRQ),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_VOIP_RX),
+    TERMINATOR
+};
+
+
+template <>
+const InputFlagConverter::Table InputFlagConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_NONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_FAST),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_HW_HOTWORD),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_RAW),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_SYNC),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_MMAP_NOIRQ),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_VOIP_TX),
+    TERMINATOR
+};
+
+
+template <>
+const FormatConverter::Table FormatConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_16_BIT),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_8_BIT),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_32_BIT),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_8_24_BIT),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_FLOAT),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_MP3),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AMR_NB),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AMR_WB),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_MAIN),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_SSR),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LTP),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_HE_V1),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_SCALABLE),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ERLC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_HE_V2),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ELD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_MAIN),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_LC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_SSR),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_LTP),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_HE_V1),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_SCALABLE),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_ERLC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_LD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_HE_V2),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_ELD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_VORBIS),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_HE_AAC_V1),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_HE_AAC_V2),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_OPUS),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AC3),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_E_AC3),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DTS),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DTS_HD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_IEC61937),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DOLBY_TRUEHD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_EVRC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_EVRCB),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_EVRCWB),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_EVRCNW),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADIF),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_WMA),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_WMA_PRO),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AMR_WB_PLUS),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_MP2),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_QCELP),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DSD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_FLAC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_ALAC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_APE),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_SBC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_APTX),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_APTX_HD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AC4),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_LDAC),
+    TERMINATOR
+};
+
+
+template <>
+const OutputChannelConverter::Table OutputChannelConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_MONO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_STEREO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_2POINT1),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_QUAD),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_SURROUND),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_PENTA),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_5POINT1),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_6POINT1),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_7POINT1),
+    TERMINATOR
+};
+
+
+template <>
+const InputChannelConverter::Table InputChannelConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_MONO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_STEREO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_6),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_VOICE_UPLINK_MONO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_VOICE_DNLINK_MONO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_VOICE_CALL_MONO),
+    TERMINATOR
+};
+
+template <>
+const ChannelIndexConverter::Table ChannelIndexConverter::mTable[] = {
+    {"AUDIO_CHANNEL_INDEX_MASK_1", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_1)},
+    {"AUDIO_CHANNEL_INDEX_MASK_2", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_2)},
+    {"AUDIO_CHANNEL_INDEX_MASK_3", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_3)},
+    {"AUDIO_CHANNEL_INDEX_MASK_4", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_4)},
+    {"AUDIO_CHANNEL_INDEX_MASK_5", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_5)},
+    {"AUDIO_CHANNEL_INDEX_MASK_6", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_6)},
+    {"AUDIO_CHANNEL_INDEX_MASK_7", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_7)},
+    {"AUDIO_CHANNEL_INDEX_MASK_8", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_8)},
+    TERMINATOR
+};
+
+
+template <>
+const GainModeConverter::Table GainModeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_JOINT),
+    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_CHANNELS),
+    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_RAMP),
+    TERMINATOR
+};
+
+
+template <>
+const StreamTypeConverter::Table StreamTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_VOICE_CALL),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_SYSTEM),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_RING),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_MUSIC),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ALARM),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_NOTIFICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_BLUETOOTH_SCO ),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ENFORCED_AUDIBLE),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_DTMF),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_TTS),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ACCESSIBILITY),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_REROUTING),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_PATCH),
+    TERMINATOR
+};
+
+template<>
+const AudioModeConverter::Table AudioModeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_INVALID),
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_CURRENT),
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_NORMAL),
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_RINGTONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_IN_CALL),
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_IN_COMMUNICATION),
+    TERMINATOR
+};
+
+template <>
+const UsageTypeConverter::Table UsageTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_UNKNOWN),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_MEDIA),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_VOICE_COMMUNICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_ALARM),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION_EVENT),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_ASSISTANCE_SONIFICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_GAME),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_VIRTUAL_SOURCE),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_CNT),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_MAX),
+    TERMINATOR
+};
+
+template <>
+const SourceTypeConverter::Table SourceTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_DEFAULT),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_MIC),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_VOICE_UPLINK),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_VOICE_DOWNLINK),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_VOICE_CALL),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_CAMCORDER),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_VOICE_RECOGNITION),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_VOICE_COMMUNICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_REMOTE_SUBMIX),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_UNPROCESSED),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_CNT),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_MAX),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_FM_TUNER),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_HOTWORD),
+    TERMINATOR
+};
+
+template class TypeConverter<OutputDeviceTraits>;
+template class TypeConverter<InputDeviceTraits>;
+template class TypeConverter<OutputFlagTraits>;
+template class TypeConverter<InputFlagTraits>;
+template class TypeConverter<FormatTraits>;
+template class TypeConverter<OutputChannelTraits>;
+template class TypeConverter<InputChannelTraits>;
+template class TypeConverter<ChannelIndexTraits>;
+template class TypeConverter<GainModeTraits>;
+template class TypeConverter<StreamTraits>;
+template class TypeConverter<AudioModeTraits>;
+template class TypeConverter<UsageTraits>;
+template class TypeConverter<SourceTraits>;
+
+bool deviceFromString(const std::string& literalDevice, audio_devices_t& device) {
+    return InputDeviceConverter::fromString(literalDevice, device) ||
+            OutputDeviceConverter::fromString(literalDevice, device);
+}
+
+bool deviceToString(audio_devices_t device, std::string& literalDevice) {
+    if (device & AUDIO_DEVICE_BIT_IN) {
+        return InputDeviceConverter::toString(device, literalDevice);
+    } else {
+        return OutputDeviceConverter::toString(device, literalDevice);
+    }
+}
+
+SampleRateTraits::Collection samplingRatesFromString(
+        const std::string &samplingRates, const char *del)
+{
+    SampleRateTraits::Collection samplingRateCollection;
+    collectionFromString<SampleRateTraits>(samplingRates, samplingRateCollection, del);
+    return samplingRateCollection;
+}
+
+FormatTraits::Collection formatsFromString(
+        const std::string &formats, const char *del)
+{
+    FormatTraits::Collection formatCollection;
+    FormatConverter::collectionFromString(formats, formatCollection, del);
+    return formatCollection;
+}
+
+audio_format_t formatFromString(const std::string &literalFormat, audio_format_t defaultFormat)
+{
+    audio_format_t format;
+    if (literalFormat.empty()) {
+        return defaultFormat;
+    }
+    FormatConverter::fromString(literalFormat, format);
+    return format;
+}
+
+audio_channel_mask_t channelMaskFromString(const std::string &literalChannels)
+{
+    audio_channel_mask_t channels;
+    if (!OutputChannelConverter::fromString(literalChannels, channels) ||
+            !InputChannelConverter::fromString(literalChannels, channels)) {
+        return AUDIO_CHANNEL_INVALID;
+    }
+    return channels;
+}
+
+ChannelTraits::Collection channelMasksFromString(
+        const std::string &channels, const char *del)
+{
+    ChannelTraits::Collection channelMaskCollection;
+    OutputChannelConverter::collectionFromString(channels, channelMaskCollection, del);
+    InputChannelConverter::collectionFromString(channels, channelMaskCollection, del);
+    ChannelIndexConverter::collectionFromString(channels, channelMaskCollection, del);
+    return channelMaskCollection;
+}
+
+InputChannelTraits::Collection inputChannelMasksFromString(
+        const std::string &inChannels, const char *del)
+{
+    InputChannelTraits::Collection inputChannelMaskCollection;
+    InputChannelConverter::collectionFromString(inChannels, inputChannelMaskCollection, del);
+    ChannelIndexConverter::collectionFromString(inChannels, inputChannelMaskCollection, del);
+    return inputChannelMaskCollection;
+}
+
+OutputChannelTraits::Collection outputChannelMasksFromString(
+        const std::string &outChannels, const char *del)
+{
+    OutputChannelTraits::Collection outputChannelMaskCollection;
+    OutputChannelConverter::collectionFromString(outChannels, outputChannelMaskCollection, del);
+    ChannelIndexConverter::collectionFromString(outChannels, outputChannelMaskCollection, del);
+    return outputChannelMaskCollection;
+}
+
+}; // namespace android
diff --git a/media/libmedia/aidl/android/IGraphicBufferSource.aidl b/media/libmedia/aidl/android/IGraphicBufferSource.aidl
new file mode 100644
index 0000000..f3c7abc
--- /dev/null
+++ b/media/libmedia/aidl/android/IGraphicBufferSource.aidl
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android;
+
+import android.IOMXNode;
+
+/**
+ * Binder interface for controlling a graphic buffer source.
+ *
+ * @hide
+ */
+interface IGraphicBufferSource {
+    void configure(IOMXNode omxNode, int dataSpace);
+    void setSuspend(boolean suspend, long suspendTimeUs);
+    void setRepeatPreviousFrameDelayUs(long repeatAfterUs);
+    void setMaxFps(float maxFps);
+    void setTimeLapseConfig(double fps, double captureFps);
+    void setStartTimeUs(long startTimeUs);
+    void setStopTimeUs(long stopTimeUs);
+    void setColorAspects(int aspects);
+    void setTimeOffsetUs(long timeOffsetsUs);
+    void signalEndOfInputStream();
+}
diff --git a/media/libmedia/aidl/android/IOMXBufferSource.aidl b/media/libmedia/aidl/android/IOMXBufferSource.aidl
new file mode 100644
index 0000000..a5bf448
--- /dev/null
+++ b/media/libmedia/aidl/android/IOMXBufferSource.aidl
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android;
+
+import android.OMXFenceParcelable;
+
+/**
+ * Binder interface for a buffer source to be used together with an OMX encoder
+ *
+ * @hide
+ */
+interface IOMXBufferSource {
+    /**
+     * This is called when OMX transitions to OMX_StateExecuting, which means
+     * we can start handing it buffers.  If we already have buffers of data
+     * sitting in the BufferQueue, this will send them to the codec.
+     */
+    void onOmxExecuting();
+
+    /**
+     * This is called when OMX transitions to OMX_StateIdle, indicating that
+     * the codec is meant to return all buffers back to the client for them
+     * to be freed. Do NOT submit any more buffers to the component.
+     */
+    void onOmxIdle();
+
+    /**
+     * This is called when OMX transitions to OMX_StateLoaded, indicating that
+     * we are shutting down.
+     */
+    void onOmxLoaded();
+
+    /**
+     * A "codec buffer", i.e. a buffer that can be used to pass data into
+     * the encoder, has been allocated.
+     */
+    void onInputBufferAdded(int bufferID);
+
+    /**
+     * Called from OnEmptyBufferDone. If we have a BQ buffer available,
+     * fill it with a new frame of data; otherwise, just mark it as available.
+     *
+     * fenceParcel contains the fence's fd that the callee should wait on before
+     * using the buffer (or pass on to the user of the buffer, if the user supports
+     * fences). Callee takes ownership of the fence fd even if it fails.
+     */
+    void onInputBufferEmptied(int bufferID, in OMXFenceParcelable fenceParcel);
+}
\ No newline at end of file
diff --git a/media/libmedia/aidl/android/IOMXNode.aidl b/media/libmedia/aidl/android/IOMXNode.aidl
new file mode 100644
index 0000000..ec87fd2
--- /dev/null
+++ b/media/libmedia/aidl/android/IOMXNode.aidl
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android;
+
+/** @hide */
+interface IOMXNode {
+    // Stub for manual implementation
+}
diff --git a/media/libmedia/aidl/android/IOMXNode.h b/media/libmedia/aidl/android/IOMXNode.h
new file mode 100644
index 0000000..7b17614
--- /dev/null
+++ b/media/libmedia/aidl/android/IOMXNode.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/IOMX.h>
diff --git a/media/libmedia/aidl/android/OMXFenceParcelable.aidl b/media/libmedia/aidl/android/OMXFenceParcelable.aidl
new file mode 100644
index 0000000..6d517e8
--- /dev/null
+++ b/media/libmedia/aidl/android/OMXFenceParcelable.aidl
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android;
+
+/** @hide */
+parcelable OMXFenceParcelable cpp_header "media/OMXFenceParcelable.h";
diff --git a/include/media/AVSyncSettings.h b/media/libmedia/include/media/AVSyncSettings.h
similarity index 100%
rename from include/media/AVSyncSettings.h
rename to media/libmedia/include/media/AVSyncSettings.h
diff --git a/media/libmedia/include/media/BufferProviders.h b/media/libmedia/include/media/BufferProviders.h
new file mode 100644
index 0000000..9d026f6
--- /dev/null
+++ b/media/libmedia/include/media/BufferProviders.h
@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_BUFFER_PROVIDERS_H
+#define ANDROID_BUFFER_PROVIDERS_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <media/AudioBufferProvider.h>
+#include <media/AudioResamplerPublic.h>
+#include <system/audio.h>
+#include <system/audio_effect.h>
+#include <utils/StrongPointer.h>
+
+// external forward declaration from external/sonic/sonic.h
+struct sonicStreamStruct;
+typedef struct sonicStreamStruct *sonicStream;
+
+namespace android {
+
+class EffectBufferHalInterface;
+class EffectHalInterface;
+class EffectsFactoryHalInterface;
+
+// ----------------------------------------------------------------------------
+
+class PassthruBufferProvider : public AudioBufferProvider {
+public:
+    PassthruBufferProvider() : mTrackBufferProvider(NULL) { }
+
+    virtual ~PassthruBufferProvider() { }
+
+    // call this to release the buffer to the upstream provider.
+    // treat it as an audio discontinuity for future samples.
+    virtual void reset() { }
+
+    // set the upstream buffer provider. Consider calling "reset" before this function.
+    virtual void setBufferProvider(AudioBufferProvider *p) {
+        mTrackBufferProvider = p;
+    }
+
+protected:
+    AudioBufferProvider *mTrackBufferProvider;
+};
+
+// Base AudioBufferProvider class used for DownMixerBufferProvider, RemixBufferProvider,
+// and ReformatBufferProvider.
+// It handles a private buffer for use in converting format or channel masks from the
+// input data to a form acceptable by the mixer.
+// TODO: Make a ResamplerBufferProvider when integers are entirely removed from the
+// processing pipeline.
+class CopyBufferProvider : public PassthruBufferProvider {
+public:
+    // Use a private buffer of bufferFrameCount frames (each frame is outputFrameSize bytes).
+    // If bufferFrameCount is 0, no private buffer is created and in-place modification of
+    // the upstream buffer provider's buffers is performed by copyFrames().
+    CopyBufferProvider(size_t inputFrameSize, size_t outputFrameSize,
+            size_t bufferFrameCount);
+    virtual ~CopyBufferProvider();
+
+    // Overrides AudioBufferProvider methods
+    virtual status_t getNextBuffer(Buffer *buffer);
+    virtual void releaseBuffer(Buffer *buffer);
+
+    // Overrides PassthruBufferProvider
+    virtual void reset();
+
+    // this function should be supplied by the derived class.  It converts
+    // #frames in the *src pointer to the *dst pointer.  It is public because
+    // some providers will allow this to work on arbitrary buffers outside
+    // of the internal buffers.
+    virtual void copyFrames(void *dst, const void *src, size_t frames) = 0;
+
+protected:
+    const size_t         mInputFrameSize;
+    const size_t         mOutputFrameSize;
+private:
+    AudioBufferProvider::Buffer mBuffer;
+    const size_t         mLocalBufferFrameCount;
+    void                *mLocalBufferData;
+    size_t               mConsumed;
+};
+
+// DownmixerBufferProvider derives from CopyBufferProvider to provide
+// position dependent downmixing by an Audio Effect.
+class DownmixerBufferProvider : public CopyBufferProvider {
+public:
+    DownmixerBufferProvider(audio_channel_mask_t inputChannelMask,
+            audio_channel_mask_t outputChannelMask, audio_format_t format,
+            uint32_t sampleRate, int32_t sessionId, size_t bufferFrameCount);
+    virtual ~DownmixerBufferProvider();
+    //Overrides
+    virtual void copyFrames(void *dst, const void *src, size_t frames);
+
+    bool isValid() const { return mDownmixInterface.get() != NULL; }
+    static status_t init();
+    static bool isMultichannelCapable() { return sIsMultichannelCapable; }
+
+protected:
+    sp<EffectsFactoryHalInterface> mEffectsFactory;
+    sp<EffectHalInterface> mDownmixInterface;
+    size_t mInFrameSize;
+    size_t mOutFrameSize;
+    sp<EffectBufferHalInterface> mInBuffer;
+    sp<EffectBufferHalInterface> mOutBuffer;
+    effect_config_t    mDownmixConfig;
+
+    // effect descriptor for the downmixer used by the mixer
+    static effect_descriptor_t sDwnmFxDesc;
+    // indicates whether a downmix effect has been found and is usable by this mixer
+    static bool                sIsMultichannelCapable;
+    // FIXME: should we allow effects outside of the framework?
+    // We need to here. A special ioId that must be <= -2 so it does not map to a session.
+    static const int32_t SESSION_ID_INVALID_AND_IGNORED = -2;
+};
+
+// RemixBufferProvider derives from CopyBufferProvider to perform an
+// upmix or downmix to the proper channel count and mask.
+class RemixBufferProvider : public CopyBufferProvider {
+public:
+    RemixBufferProvider(audio_channel_mask_t inputChannelMask,
+            audio_channel_mask_t outputChannelMask, audio_format_t format,
+            size_t bufferFrameCount);
+    //Overrides
+    virtual void copyFrames(void *dst, const void *src, size_t frames);
+
+protected:
+    const audio_format_t mFormat;
+    const size_t         mSampleSize;
+    const size_t         mInputChannels;
+    const size_t         mOutputChannels;
+    int8_t               mIdxAry[sizeof(uint32_t) * 8]; // 32 bits => channel indices
+};
+
+// ReformatBufferProvider derives from CopyBufferProvider to convert the input data
+// to an acceptable mixer input format type.
+class ReformatBufferProvider : public CopyBufferProvider {
+public:
+    ReformatBufferProvider(int32_t channelCount,
+            audio_format_t inputFormat, audio_format_t outputFormat,
+            size_t bufferFrameCount);
+    virtual void copyFrames(void *dst, const void *src, size_t frames);
+
+protected:
+    const uint32_t       mChannelCount;
+    const audio_format_t mInputFormat;
+    const audio_format_t mOutputFormat;
+};
+
+// TimestretchBufferProvider derives from PassthruBufferProvider for time stretching
+class TimestretchBufferProvider : public PassthruBufferProvider {
+public:
+    TimestretchBufferProvider(int32_t channelCount,
+            audio_format_t format, uint32_t sampleRate,
+            const AudioPlaybackRate &playbackRate);
+    virtual ~TimestretchBufferProvider();
+
+    // Overrides AudioBufferProvider methods
+    virtual status_t getNextBuffer(Buffer* buffer);
+    virtual void releaseBuffer(Buffer* buffer);
+
+    // Overrides PassthruBufferProvider
+    virtual void reset();
+
+    virtual status_t setPlaybackRate(const AudioPlaybackRate &playbackRate);
+
+    // processes frames
+    // dstBuffer is where to place the data
+    // dstFrames [in/out] is the desired frames (return with actual placed in buffer)
+    // srcBuffer is the source data
+    // srcFrames [in/out] is the available source frames (return with consumed)
+    virtual void processFrames(void *dstBuffer, size_t *dstFrames,
+            const void *srcBuffer, size_t *srcFrames);
+
+protected:
+    const uint32_t       mChannelCount;
+    const audio_format_t mFormat;
+    const uint32_t       mSampleRate; // const for now (TODO change this)
+    const size_t         mFrameSize;
+    AudioPlaybackRate    mPlaybackRate;
+
+private:
+    AudioBufferProvider::Buffer mBuffer;          // for upstream request
+    size_t               mLocalBufferFrameCount;  // size of local buffer
+    void                *mLocalBufferData;        // internally allocated buffer for data returned
+                                                  // to caller
+    size_t               mRemaining;              // remaining data in local buffer
+    sonicStream          mSonicStream;            // handle to sonic timestretch object
+    //FIXME: this dependency should be abstracted out
+    bool                 mFallbackFailErrorShown; // log fallback error only once
+    bool                 mAudioPlaybackRateValid; // flag for current parameters validity
+};
+
+// ----------------------------------------------------------------------------
+} // namespace android
+
+#endif // ANDROID_BUFFER_PROVIDERS_H
diff --git a/media/libmedia/include/media/BufferingSettings.h b/media/libmedia/include/media/BufferingSettings.h
new file mode 100644
index 0000000..e812d2a
--- /dev/null
+++ b/media/libmedia/include/media/BufferingSettings.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_BUFFERING_SETTINGS_H
+#define ANDROID_BUFFERING_SETTINGS_H
+
+#include <binder/Parcelable.h>
+
+namespace android {
+
+enum BufferingMode : int {
+    // Do not support buffering.
+    BUFFERING_MODE_NONE             = 0,
+    // Support only time based buffering.
+    BUFFERING_MODE_TIME_ONLY        = 1,
+    // Support only size based buffering.
+    BUFFERING_MODE_SIZE_ONLY        = 2,
+    // Support both time and size based buffering, time based calculation precedes size based.
+    // Size based calculation will be used only when time information is not available for
+    // the stream.
+    BUFFERING_MODE_TIME_THEN_SIZE   = 3,
+    // Number of modes.
+    BUFFERING_MODE_COUNT            = 4,
+};
+
+struct BufferingSettings : public Parcelable {
+    static const int kNoWatermark = -1;
+
+    static bool IsValidBufferingMode(int mode);
+    static bool IsTimeBasedBufferingMode(int mode);
+    static bool IsSizeBasedBufferingMode(int mode);
+
+    BufferingMode mInitialBufferingMode;  // for prepare
+    BufferingMode mRebufferingMode;  // for playback
+
+    int mInitialWatermarkMs;  // time based
+    int mInitialWatermarkKB;  // size based
+
+    // When cached data is below this mark, playback will be paused for buffering
+    // till data reach |mRebufferingWatermarkHighMs| or end of stream.
+    int mRebufferingWatermarkLowMs;
+    // When cached data is above this mark, buffering will be paused.
+    int mRebufferingWatermarkHighMs;
+
+    // When cached data is below this mark, playback will be paused for buffering
+    // till data reach |mRebufferingWatermarkHighKB| or end of stream.
+    int mRebufferingWatermarkLowKB;
+    // When cached data is above this mark, buffering will be paused.
+    int mRebufferingWatermarkHighKB;
+
+    BufferingSettings();
+
+    status_t writeToParcel(Parcel* parcel) const override;
+    status_t readFromParcel(const Parcel* parcel) override;
+
+    String8 toString() const;
+};
+
+} // namespace android
+
+// ---------------------------------------------------------------------------
+
+#endif // ANDROID_BUFFERING_SETTINGS_H
diff --git a/include/media/CharacterEncodingDetector.h b/media/libmedia/include/media/CharacterEncodingDetector.h
similarity index 100%
rename from include/media/CharacterEncodingDetector.h
rename to media/libmedia/include/media/CharacterEncodingDetector.h
diff --git a/media/libmedia/include/media/Crypto.h b/media/libmedia/include/media/Crypto.h
new file mode 100644
index 0000000..b68413d
--- /dev/null
+++ b/media/libmedia/include/media/Crypto.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CRYPTO_H_
+
+#define CRYPTO_H_
+
+#include <media/ICrypto.h>
+#include <utils/threads.h>
+#include <utils/KeyedVector.h>
+
+#include "SharedLibrary.h"
+
+namespace android {
+
+struct CryptoFactory;
+struct CryptoPlugin;
+
+struct Crypto : public BnCrypto {
+    Crypto();
+    virtual ~Crypto();
+
+    virtual status_t initCheck() const;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]);
+
+    virtual status_t createPlugin(
+            const uint8_t uuid[16], const void *data, size_t size);
+
+    virtual status_t destroyPlugin();
+
+    virtual bool requiresSecureDecoderComponent(
+            const char *mime) const;
+
+    virtual void notifyResolution(uint32_t width, uint32_t height);
+
+    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId);
+
+    virtual ssize_t decrypt(const uint8_t key[16], const uint8_t iv[16],
+            CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+            const sp<IMemory> &source, size_t offset,
+            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+            const DestinationBuffer &destination, AString *errorDetailMsg);
+
+    virtual void setHeap(const sp<IMemoryHeap>&) {}
+    virtual void unsetHeap(const sp<IMemoryHeap>&) {}
+
+private:
+    mutable Mutex mLock;
+
+    status_t mInitCheck;
+    sp<SharedLibrary> mLibrary;
+    CryptoFactory *mFactory;
+    CryptoPlugin *mPlugin;
+
+    static KeyedVector<Vector<uint8_t>, String8> mUUIDToLibraryPathMap;
+    static KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
+    static Mutex mMapLock;
+
+    void findFactoryForScheme(const uint8_t uuid[16]);
+    bool loadLibraryForScheme(const String8 &path, const uint8_t uuid[16]);
+    void closeFactory();
+
+    DISALLOW_EVIL_CONSTRUCTORS(Crypto);
+};
+
+}  // namespace android
+
+#endif  // CRYPTO_H_
diff --git a/media/libmedia/include/media/CryptoHal.h b/media/libmedia/include/media/CryptoHal.h
new file mode 100644
index 0000000..a5d8b43
--- /dev/null
+++ b/media/libmedia/include/media/CryptoHal.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CRYPTO_HAL_H_
+
+#define CRYPTO_HAL_H_
+
+#include <android/hardware/drm/1.0/ICryptoFactory.h>
+#include <android/hardware/drm/1.0/ICryptoPlugin.h>
+
+#include <media/ICrypto.h>
+#include <utils/KeyedVector.h>
+#include <utils/threads.h>
+
+using ::android::hardware::drm::V1_0::ICryptoFactory;
+using ::android::hardware::drm::V1_0::ICryptoPlugin;
+using ::android::hardware::drm::V1_0::SharedBuffer;
+
+class IMemoryHeap;
+
+namespace android {
+
+struct CryptoHal : public BnCrypto {
+    CryptoHal();
+    virtual ~CryptoHal();
+
+    virtual status_t initCheck() const;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]);
+
+    virtual status_t createPlugin(
+            const uint8_t uuid[16], const void *data, size_t size);
+
+    virtual status_t destroyPlugin();
+
+    virtual bool requiresSecureDecoderComponent(
+            const char *mime) const;
+
+    virtual void notifyResolution(uint32_t width, uint32_t height);
+
+    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId);
+
+    virtual ssize_t decrypt(const uint8_t key[16], const uint8_t iv[16],
+            CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+            const ICrypto::SourceBuffer &source, size_t offset,
+            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+            const ICrypto::DestinationBuffer &destination,
+            AString *errorDetailMsg);
+
+    virtual int32_t setHeap(const sp<IMemoryHeap>& heap) {
+        return setHeapBase(heap);
+    }
+    virtual void unsetHeap(int32_t seqNum) { clearHeapBase(seqNum); }
+
+private:
+    mutable Mutex mLock;
+
+    const Vector<sp<ICryptoFactory>> mFactories;
+    sp<ICryptoPlugin> mPlugin;
+
+    /**
+     * mInitCheck is:
+     *   NO_INIT if a plugin hasn't been created yet
+     *   ERROR_UNSUPPORTED if a plugin can't be created for the uuid
+     *   OK after a plugin has been created and mPlugin is valid
+     */
+    status_t mInitCheck;
+
+    KeyedVector<int32_t, uint32_t> mHeapBases;
+    uint32_t mNextBufferId;
+    int32_t mHeapSeqNum;
+
+    Vector<sp<ICryptoFactory>> makeCryptoFactories();
+    sp<ICryptoPlugin> makeCryptoPlugin(const sp<ICryptoFactory>& factory,
+            const uint8_t uuid[16], const void *initData, size_t size);
+
+    int32_t setHeapBase(const sp<IMemoryHeap>& heap);
+    void clearHeapBase(int32_t seqNum);
+
+    status_t toSharedBuffer(const sp<IMemory>& memory, int32_t seqNum, ::SharedBuffer* buffer);
+
+    DISALLOW_EVIL_CONSTRUCTORS(CryptoHal);
+};
+
+}  // namespace android
+
+#endif  // CRYPTO_HAL_H_
diff --git a/media/libmedia/include/media/Drm.h b/media/libmedia/include/media/Drm.h
new file mode 100644
index 0000000..fc869cc
--- /dev/null
+++ b/media/libmedia/include/media/Drm.h
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DRM_H_
+
+#define DRM_H_
+
+#include "SharedLibrary.h"
+
+#include <media/IDrm.h>
+#include <media/IDrmClient.h>
+#include <utils/threads.h>
+
+namespace android {
+
+class DrmFactory;
+class DrmPlugin;
+struct DrmSessionClientInterface;
+
+struct Drm : public BnDrm,
+             public IBinder::DeathRecipient,
+             public DrmPluginListener {
+    Drm();
+    virtual ~Drm();
+
+    virtual status_t initCheck() const;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType);
+
+    virtual status_t createPlugin(const uint8_t uuid[16], const String8 &appPackageName);
+
+    virtual status_t destroyPlugin();
+
+    virtual status_t openSession(Vector<uint8_t> &sessionId);
+
+    virtual status_t closeSession(Vector<uint8_t> const &sessionId);
+
+    virtual status_t
+        getKeyRequest(Vector<uint8_t> const &sessionId,
+                      Vector<uint8_t> const &initData,
+                      String8 const &mimeType, DrmPlugin::KeyType keyType,
+                      KeyedVector<String8, String8> const &optionalParameters,
+                      Vector<uint8_t> &request, String8 &defaultUrl,
+                      DrmPlugin::KeyRequestType *keyRequestType);
+
+    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                        Vector<uint8_t> const &response,
+                                        Vector<uint8_t> &keySetId);
+
+    virtual status_t removeKeys(Vector<uint8_t> const &keySetId);
+
+    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
+                                 Vector<uint8_t> const &keySetId);
+
+    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                    KeyedVector<String8, String8> &infoMap) const;
+
+    virtual status_t getProvisionRequest(String8 const &certType,
+                                         String8 const &certAuthority,
+                                         Vector<uint8_t> &request,
+                                         String8 &defaulUrl);
+
+    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
+                                              Vector<uint8_t> &certificate,
+                                              Vector<uint8_t> &wrappedKey);
+
+    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops);
+    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop);
+
+    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease);
+    virtual status_t releaseAllSecureStops();
+
+    virtual status_t getPropertyString(String8 const &name, String8 &value ) const;
+    virtual status_t getPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> &value ) const;
+    virtual status_t setPropertyString(String8 const &name, String8 const &value ) const;
+    virtual status_t setPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> const &value ) const;
+
+    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                        String8 const &algorithm);
+
+    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                     String8 const &algorithm);
+
+    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output);
+
+    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output);
+
+    virtual status_t sign(Vector<uint8_t> const &sessionId,
+                          Vector<uint8_t> const &keyId,
+                          Vector<uint8_t> const &message,
+                          Vector<uint8_t> &signature);
+
+    virtual status_t verify(Vector<uint8_t> const &sessionId,
+                            Vector<uint8_t> const &keyId,
+                            Vector<uint8_t> const &message,
+                            Vector<uint8_t> const &signature,
+                            bool &match);
+
+    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
+                             String8 const &algorithm,
+                             Vector<uint8_t> const &message,
+                             Vector<uint8_t> const &wrappedKey,
+                             Vector<uint8_t> &signature);
+
+    virtual status_t setListener(const sp<IDrmClient>& listener);
+
+    virtual void sendEvent(DrmPlugin::EventType eventType, int extra,
+                           Vector<uint8_t> const *sessionId,
+                           Vector<uint8_t> const *data);
+
+    virtual void sendExpirationUpdate(Vector<uint8_t> const *sessionId,
+                                      int64_t expiryTimeInMS);
+
+    virtual void sendKeysChange(Vector<uint8_t> const *sessionId,
+                                Vector<DrmPlugin::KeyStatus> const *keyStatusList,
+                                bool hasNewUsableKey);
+
+    virtual void binderDied(const wp<IBinder> &the_late_who);
+
+private:
+    static Mutex mLock;
+
+    status_t mInitCheck;
+
+    sp<DrmSessionClientInterface> mDrmSessionClient;
+
+    sp<IDrmClient> mListener;
+    mutable Mutex mEventLock;
+    mutable Mutex mNotifyLock;
+
+    sp<SharedLibrary> mLibrary;
+    DrmFactory *mFactory;
+    DrmPlugin *mPlugin;
+
+    static KeyedVector<Vector<uint8_t>, String8> mUUIDToLibraryPathMap;
+    static KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
+    static Mutex mMapLock;
+
+    void findFactoryForScheme(const uint8_t uuid[16]);
+    bool loadLibraryForScheme(const String8 &path, const uint8_t uuid[16]);
+    void closeFactory();
+    void writeByteArray(Parcel &obj, Vector<uint8_t> const *array);
+
+    DISALLOW_EVIL_CONSTRUCTORS(Drm);
+};
+
+}  // namespace android
+
+#endif  // CRYPTO_H_
diff --git a/media/libmedia/include/media/DrmHal.h b/media/libmedia/include/media/DrmHal.h
new file mode 100644
index 0000000..e031765
--- /dev/null
+++ b/media/libmedia/include/media/DrmHal.h
@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DRM_HAL_H_
+
+#define DRM_HAL_H_
+
+#include <android/hardware/drm/1.0/IDrmPlugin.h>
+#include <android/hardware/drm/1.0/IDrmPluginListener.h>
+#include <android/hardware/drm/1.0/IDrmFactory.h>
+
+#include <media/IDrm.h>
+#include <media/IDrmClient.h>
+#include <utils/threads.h>
+
+using ::android::hardware::drm::V1_0::EventType;
+using ::android::hardware::drm::V1_0::IDrmFactory;
+using ::android::hardware::drm::V1_0::IDrmPlugin;
+using ::android::hardware::drm::V1_0::IDrmPluginListener;
+using ::android::hardware::drm::V1_0::KeyStatus;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+namespace android {
+
+struct DrmSessionClientInterface;
+
+struct DrmHal : public BnDrm,
+             public IBinder::DeathRecipient,
+             public IDrmPluginListener {
+    DrmHal();
+    virtual ~DrmHal();
+
+    virtual status_t initCheck() const;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType);
+
+    virtual status_t createPlugin(const uint8_t uuid[16],
+                                  const String8 &appPackageName);
+
+    virtual status_t destroyPlugin();
+
+    virtual status_t openSession(Vector<uint8_t> &sessionId);
+
+    virtual status_t closeSession(Vector<uint8_t> const &sessionId);
+
+    virtual status_t
+        getKeyRequest(Vector<uint8_t> const &sessionId,
+                      Vector<uint8_t> const &initData,
+                      String8 const &mimeType, DrmPlugin::KeyType keyType,
+                      KeyedVector<String8, String8> const &optionalParameters,
+                      Vector<uint8_t> &request, String8 &defaultUrl,
+                      DrmPlugin::KeyRequestType *keyRequestType);
+
+    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                        Vector<uint8_t> const &response,
+                                        Vector<uint8_t> &keySetId);
+
+    virtual status_t removeKeys(Vector<uint8_t> const &keySetId);
+
+    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
+                                 Vector<uint8_t> const &keySetId);
+
+    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                    KeyedVector<String8, String8> &infoMap) const;
+
+    virtual status_t getProvisionRequest(String8 const &certType,
+                                         String8 const &certAuthority,
+                                         Vector<uint8_t> &request,
+                                         String8 &defaulUrl);
+
+    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
+                                              Vector<uint8_t> &certificate,
+                                              Vector<uint8_t> &wrappedKey);
+
+    virtual status_t getSecureStops(List<Vector<uint8_t>> &secureStops);
+    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop);
+
+    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease);
+    virtual status_t releaseAllSecureStops();
+
+    virtual status_t getPropertyString(String8 const &name, String8 &value ) const;
+    virtual status_t getPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> &value ) const;
+    virtual status_t setPropertyString(String8 const &name, String8 const &value ) const;
+    virtual status_t setPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> const &value ) const;
+
+    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                        String8 const &algorithm);
+
+    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                     String8 const &algorithm);
+
+    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output);
+
+    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output);
+
+    virtual status_t sign(Vector<uint8_t> const &sessionId,
+                          Vector<uint8_t> const &keyId,
+                          Vector<uint8_t> const &message,
+                          Vector<uint8_t> &signature);
+
+    virtual status_t verify(Vector<uint8_t> const &sessionId,
+                            Vector<uint8_t> const &keyId,
+                            Vector<uint8_t> const &message,
+                            Vector<uint8_t> const &signature,
+                            bool &match);
+
+    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
+                             String8 const &algorithm,
+                             Vector<uint8_t> const &message,
+                             Vector<uint8_t> const &wrappedKey,
+                             Vector<uint8_t> &signature);
+
+    virtual status_t setListener(const sp<IDrmClient>& listener);
+
+    // Methods of IDrmPluginListener
+    Return<void> sendEvent(EventType eventType,
+            const hidl_vec<uint8_t>& sessionId, const hidl_vec<uint8_t>& data);
+
+    Return<void> sendExpirationUpdate(const hidl_vec<uint8_t>& sessionId,
+            int64_t expiryTimeInMS);
+
+    Return<void> sendKeysChange(const hidl_vec<uint8_t>& sessionId,
+            const hidl_vec<KeyStatus>& keyStatusList, bool hasNewUsableKey);
+
+    virtual void binderDied(const wp<IBinder> &the_late_who);
+
+private:
+    static Mutex mLock;
+
+    sp<DrmSessionClientInterface> mDrmSessionClient;
+
+    sp<IDrmClient> mListener;
+    mutable Mutex mEventLock;
+    mutable Mutex mNotifyLock;
+
+    const Vector<sp<IDrmFactory>> mFactories;
+    sp<IDrmPlugin> mPlugin;
+
+    /**
+     * mInitCheck is:
+     *   NO_INIT if a plugin hasn't been created yet
+     *   ERROR_UNSUPPORTED if a plugin can't be created for the uuid
+     *   OK after a plugin has been created and mPlugin is valid
+     */
+    status_t mInitCheck;
+
+    Vector<sp<IDrmFactory>> makeDrmFactories();
+    sp<IDrmPlugin> makeDrmPlugin(const sp<IDrmFactory>& factory,
+            const uint8_t uuid[16], const String8& appPackageName);
+
+    void writeByteArray(Parcel &obj, const hidl_vec<uint8_t>& array);
+
+    DISALLOW_EVIL_CONSTRUCTORS(DrmHal);
+};
+
+}  // namespace android
+
+#endif  // DRM_HAL_H_
diff --git a/media/libmedia/include/media/DrmPluginPath.h b/media/libmedia/include/media/DrmPluginPath.h
new file mode 100644
index 0000000..51ba26e
--- /dev/null
+++ b/media/libmedia/include/media/DrmPluginPath.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DRM_PLUGIN_PATH_H_
+
+#define DRM_PLUGIN_PATH_H_
+
+namespace android {
+
+const char* getDrmPluginPath();
+
+}  // namespace android
+
+#endif  // DRM_PLUGIN_PATH_H_
diff --git a/include/media/DrmSessionClientInterface.h b/media/libmedia/include/media/DrmSessionClientInterface.h
similarity index 100%
rename from include/media/DrmSessionClientInterface.h
rename to media/libmedia/include/media/DrmSessionClientInterface.h
diff --git a/media/libmedia/include/media/DrmSessionManager.h b/media/libmedia/include/media/DrmSessionManager.h
new file mode 100644
index 0000000..ba27199
--- /dev/null
+++ b/media/libmedia/include/media/DrmSessionManager.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DRM_SESSION_MANAGER_H_
+
+#define DRM_SESSION_MANAGER_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <utils/RefBase.h>
+#include <utils/KeyedVector.h>
+#include <utils/threads.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+class DrmSessionManagerTest;
+struct DrmSessionClientInterface;
+struct ProcessInfoInterface;
+
+bool isEqualSessionId(const Vector<uint8_t> &sessionId1, const Vector<uint8_t> &sessionId2);
+
+struct SessionInfo {
+    sp<DrmSessionClientInterface> drm;
+    Vector<uint8_t> sessionId;
+    int64_t timeStamp;
+};
+
+typedef Vector<SessionInfo > SessionInfos;
+typedef KeyedVector<int, SessionInfos > PidSessionInfosMap;
+
+struct DrmSessionManager : public RefBase {
+    static sp<DrmSessionManager> Instance();
+
+    DrmSessionManager();
+    explicit DrmSessionManager(sp<ProcessInfoInterface> processInfo);
+
+    void addSession(int pid, const sp<DrmSessionClientInterface>& drm, const Vector<uint8_t>& sessionId);
+    void useSession(const Vector<uint8_t>& sessionId);
+    void removeSession(const Vector<uint8_t>& sessionId);
+    void removeDrm(const sp<DrmSessionClientInterface>& drm);
+    bool reclaimSession(int callingPid);
+
+protected:
+    virtual ~DrmSessionManager();
+
+private:
+    friend class DrmSessionManagerTest;
+
+    int64_t getTime_l();
+    bool getLowestPriority_l(int* lowestPriorityPid, int* lowestPriority);
+    bool getLeastUsedSession_l(
+            int pid, sp<DrmSessionClientInterface>* drm, Vector<uint8_t>* sessionId);
+
+    sp<ProcessInfoInterface> mProcessInfo;
+    mutable Mutex mLock;
+    PidSessionInfosMap mSessionMap;
+    int64_t mTime;
+
+    DISALLOW_EVIL_CONSTRUCTORS(DrmSessionManager);
+};
+
+}  // namespace android
+
+#endif  // DRM_SESSION_MANAGER_H_
diff --git a/media/libmedia/include/media/ExtendedAudioBufferProvider.h b/media/libmedia/include/media/ExtendedAudioBufferProvider.h
new file mode 100644
index 0000000..51e4713
--- /dev/null
+++ b/media/libmedia/include/media/ExtendedAudioBufferProvider.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_EXTENDED_AUDIO_BUFFER_PROVIDER_H
+#define ANDROID_EXTENDED_AUDIO_BUFFER_PROVIDER_H
+
+#include <media/AudioBufferProvider.h>
+#include <media/AudioTimestamp.h>
+
+namespace android {
+
+class ExtendedAudioBufferProvider : public AudioBufferProvider {
+public:
+    virtual size_t  framesReady() const = 0;  // see description at AudioFlinger.h
+
+    // Return the total number of frames that have been obtained and released
+    virtual int64_t  framesReleased() const { return 0; }
+
+    // Invoked by buffer consumer when a new timestamp is available.
+    // Default implementation ignores the timestamp.
+    virtual void    onTimestamp(const ExtendedTimestamp& /*timestamp*/) { }
+};
+
+}   // namespace android
+
+#endif  // ANDROID_EXTENDED_AUDIO_BUFFER_PROVIDER_H
diff --git a/media/libmedia/include/media/ICrypto.h b/media/libmedia/include/media/ICrypto.h
new file mode 100644
index 0000000..6d896b8
--- /dev/null
+++ b/media/libmedia/include/media/ICrypto.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/IInterface.h>
+#include <cutils/native_handle.h>
+#include <media/hardware/CryptoAPI.h>
+#include <media/stagefright/foundation/ABase.h>
+
+#ifndef ANDROID_ICRYPTO_H_
+
+#define ANDROID_ICRYPTO_H_
+
+namespace android {
+
+struct AString;
+class IMemory;
+class IMemoryHeap;
+
+struct ICrypto : public IInterface {
+    DECLARE_META_INTERFACE(Crypto);
+
+    virtual status_t initCheck() const = 0;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) = 0;
+
+    virtual status_t createPlugin(
+            const uint8_t uuid[16], const void *data, size_t size) = 0;
+
+    virtual status_t destroyPlugin() = 0;
+
+    virtual bool requiresSecureDecoderComponent(
+            const char *mime) const = 0;
+
+    virtual void notifyResolution(uint32_t width, uint32_t height) = 0;
+
+    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId) = 0;
+
+    struct SourceBuffer {
+        sp<IMemory> mSharedMemory;
+        int32_t mHeapSeqNum;
+    };
+
+    enum DestinationType {
+        kDestinationTypeSharedMemory, // non-secure
+        kDestinationTypeNativeHandle  // secure
+    };
+
+    struct DestinationBuffer {
+        DestinationType mType;
+        native_handle_t *mHandle;
+        sp<IMemory> mSharedMemory;
+    };
+
+    virtual ssize_t decrypt(const uint8_t key[16], const uint8_t iv[16],
+            CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+            const SourceBuffer &source, size_t offset,
+            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+            const DestinationBuffer &destination, AString *errorDetailMsg) = 0;
+
+    /**
+     * Declare the heap that the shared memory source buffers passed
+     * to decrypt will be allocated from. Returns a sequence number
+     * that subsequent decrypt calls can use to refer to the heap,
+     * with -1 indicating failure.
+     */
+    virtual int32_t setHeap(const sp<IMemoryHeap>& heap) = 0;
+    virtual void unsetHeap(int32_t seqNum) = 0;
+
+private:
+    DISALLOW_EVIL_CONSTRUCTORS(ICrypto);
+};
+
+struct BnCrypto : public BnInterface<ICrypto> {
+    virtual status_t onTransact(
+            uint32_t code, const Parcel &data, Parcel *reply,
+            uint32_t flags = 0);
+private:
+    void readVector(const Parcel &data, Vector<uint8_t> &vector) const;
+    void writeVector(Parcel *reply, Vector<uint8_t> const &vector) const;
+};
+
+}  // namespace android
+
+#endif // ANDROID_ICRYPTO_H_
diff --git a/include/media/IDataSource.h b/media/libmedia/include/media/IDataSource.h
similarity index 100%
rename from include/media/IDataSource.h
rename to media/libmedia/include/media/IDataSource.h
diff --git a/media/libmedia/include/media/IDrm.h b/media/libmedia/include/media/IDrm.h
new file mode 100644
index 0000000..a57e372
--- /dev/null
+++ b/media/libmedia/include/media/IDrm.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/IInterface.h>
+#include <media/stagefright/foundation/ABase.h>
+#include <media/drm/DrmAPI.h>
+#include <media/IDrmClient.h>
+
+#ifndef ANDROID_IDRM_H_
+
+#define ANDROID_IDRM_H_
+
+namespace android {
+
+struct AString;
+
+struct IDrm : public IInterface {
+    DECLARE_META_INTERFACE(Drm);
+
+    virtual status_t initCheck() const = 0;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType) = 0;
+
+    virtual status_t createPlugin(const uint8_t uuid[16],
+                                  const String8 &appPackageName) = 0;
+
+    virtual status_t destroyPlugin() = 0;
+
+    virtual status_t openSession(Vector<uint8_t> &sessionId) = 0;
+
+    virtual status_t closeSession(Vector<uint8_t> const &sessionId) = 0;
+
+    virtual status_t
+        getKeyRequest(Vector<uint8_t> const &sessionId,
+                      Vector<uint8_t> const &initData,
+                      String8 const &mimeType, DrmPlugin::KeyType keyType,
+                      KeyedVector<String8, String8> const &optionalParameters,
+                      Vector<uint8_t> &request, String8 &defaultUrl,
+                      DrmPlugin::KeyRequestType *keyRequestType) = 0;
+
+    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                        Vector<uint8_t> const &response,
+                                        Vector<uint8_t> &keySetId) = 0;
+
+    virtual status_t removeKeys(Vector<uint8_t> const &keySetId) = 0;
+
+    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
+                                 Vector<uint8_t> const &keySetId) = 0;
+
+    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                    KeyedVector<String8, String8> &infoMap) const = 0;
+
+    virtual status_t getProvisionRequest(String8 const &certType,
+                                         String8 const &certAuthority,
+                                         Vector<uint8_t> &request,
+                                         String8 &defaulUrl) = 0;
+
+    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
+                                              Vector<uint8_t> &certificate,
+                                              Vector<uint8_t> &wrappedKey) = 0;
+
+    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops) = 0;
+    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) = 0;
+
+    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) = 0;
+    virtual status_t releaseAllSecureStops() = 0;
+
+    virtual status_t getPropertyString(String8 const &name, String8 &value) const = 0;
+    virtual status_t getPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> &value) const = 0;
+    virtual status_t setPropertyString(String8 const &name,
+                                       String8 const &value ) const = 0;
+    virtual status_t setPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> const &value) const = 0;
+
+    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                        String8 const &algorithm) = 0;
+
+    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                     String8 const &algorithm) = 0;
+
+    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output) = 0;
+
+    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output) = 0;
+
+    virtual status_t sign(Vector<uint8_t> const &sessionId,
+                          Vector<uint8_t> const &keyId,
+                          Vector<uint8_t> const &message,
+                          Vector<uint8_t> &signature) = 0;
+
+    virtual status_t verify(Vector<uint8_t> const &sessionId,
+                            Vector<uint8_t> const &keyId,
+                            Vector<uint8_t> const &message,
+                            Vector<uint8_t> const &signature,
+                            bool &match) = 0;
+
+    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
+                             String8 const &algorithm,
+                             Vector<uint8_t> const &message,
+                             Vector<uint8_t> const &wrappedKey,
+                             Vector<uint8_t> &signature) = 0;
+
+    virtual status_t setListener(const sp<IDrmClient>& listener) = 0;
+
+private:
+    DISALLOW_EVIL_CONSTRUCTORS(IDrm);
+};
+
+struct BnDrm : public BnInterface<IDrm> {
+    virtual status_t onTransact(
+            uint32_t code, const Parcel &data, Parcel *reply,
+            uint32_t flags = 0);
+private:
+    void readVector(const Parcel &data, Vector<uint8_t> &vector) const;
+    void writeVector(Parcel *reply, Vector<uint8_t> const &vector) const;
+};
+
+}  // namespace android
+
+#endif // ANDROID_IDRM_H_
diff --git a/include/media/IDrmClient.h b/media/libmedia/include/media/IDrmClient.h
similarity index 100%
rename from include/media/IDrmClient.h
rename to media/libmedia/include/media/IDrmClient.h
diff --git a/include/media/IHDCP.h b/media/libmedia/include/media/IHDCP.h
similarity index 100%
rename from include/media/IHDCP.h
rename to media/libmedia/include/media/IHDCP.h
diff --git a/include/media/IMediaCodecList.h b/media/libmedia/include/media/IMediaCodecList.h
similarity index 100%
rename from include/media/IMediaCodecList.h
rename to media/libmedia/include/media/IMediaCodecList.h
diff --git a/media/libmedia/include/media/IMediaCodecService.h b/media/libmedia/include/media/IMediaCodecService.h
new file mode 100644
index 0000000..da3c5a03
--- /dev/null
+++ b/media/libmedia/include/media/IMediaCodecService.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIACODECSERVICE_H
+#define ANDROID_IMEDIACODECSERVICE_H
+
+#include <binder/IInterface.h>
+#include <binder/IMemory.h>
+#include <binder/Parcel.h>
+#include <media/IDataSource.h>
+#include <media/IOMX.h>
+
+namespace android {
+
+class IMediaCodecService: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaCodecService);
+
+    virtual sp<IOMX> getOMX() = 0;
+};
+
+class BnMediaCodecService: public BnInterface<IMediaCodecService>
+{
+public:
+    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
+                                uint32_t flags = 0);
+};
+
+}   // namespace android
+
+#endif  // ANDROID_IMEDIACODECSERVICE_H
diff --git a/include/media/IMediaDeathNotifier.h b/media/libmedia/include/media/IMediaDeathNotifier.h
similarity index 100%
rename from include/media/IMediaDeathNotifier.h
rename to media/libmedia/include/media/IMediaDeathNotifier.h
diff --git a/include/media/IMediaDrmService.h b/media/libmedia/include/media/IMediaDrmService.h
similarity index 100%
rename from include/media/IMediaDrmService.h
rename to media/libmedia/include/media/IMediaDrmService.h
diff --git a/media/libmedia/include/media/IMediaExtractor.h b/media/libmedia/include/media/IMediaExtractor.h
new file mode 100644
index 0000000..ab40f53
--- /dev/null
+++ b/media/libmedia/include/media/IMediaExtractor.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef IMEDIA_EXTRACTOR_BASE_H_
+
+#define IMEDIA_EXTRACTOR_BASE_H_
+
+#include <media/IMediaSource.h>
+#include <media/stagefright/DataSource.h>
+
+namespace android {
+
+class MetaData;
+namespace media {
+class ICas;
+};
+using namespace media;
+
+class IMediaExtractor : public IInterface {
+public:
+    DECLARE_META_INTERFACE(MediaExtractor);
+
+    virtual size_t countTracks() = 0;
+    // This function could return NULL IMediaSource even when index is within the
+    // track count returned by countTracks, since it's possible the track is malformed
+    // and it's not detected during countTracks call.
+    virtual sp<IMediaSource> getTrack(size_t index) = 0;
+
+    enum GetTrackMetaDataFlags {
+        kIncludeExtensiveMetaData = 1
+    };
+    virtual sp<MetaData> getTrackMetaData(
+            size_t index, uint32_t flags = 0) = 0;
+
+    // Return container specific meta-data. The default implementation
+    // returns an empty metadata object.
+    virtual sp<MetaData> getMetaData() = 0;
+
+    virtual status_t getMetrics(Parcel *reply) = 0;
+
+    enum Flags {
+        CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
+        CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
+        CAN_PAUSE          = 4,
+        CAN_SEEK           = 8,  // the "seek bar"
+    };
+
+    // If subclasses do _not_ override this, the default is
+    // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
+    virtual uint32_t flags() const = 0;
+
+    // for DRM
+    virtual char* getDrmTrackInfo(size_t trackID, int *len)  = 0;
+
+    virtual status_t setMediaCas(const sp<ICas> &cas) = 0;
+
+    virtual void setUID(uid_t uid)  = 0;
+
+    virtual const char * name() = 0;
+};
+
+
+class BnMediaExtractor: public BnInterface<IMediaExtractor>
+{
+public:
+    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
+                                uint32_t flags = 0);
+};
+
+void registerMediaExtractor(
+        const sp<IMediaExtractor> &extractor,
+        const sp<DataSource> &source,
+        const char *mime);
+
+void registerMediaSource(
+        const sp<IMediaExtractor> &extractor,
+        const sp<IMediaSource> &source);
+
+status_t dumpExtractors(int fd, const Vector<String16>& args);
+
+
+}  // namespace android
+
+#endif  // IMEDIA_EXTRACTOR_BASE_H_
diff --git a/media/libmedia/include/media/IMediaExtractorService.h b/media/libmedia/include/media/IMediaExtractorService.h
new file mode 100644
index 0000000..45e9620
--- /dev/null
+++ b/media/libmedia/include/media/IMediaExtractorService.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIAEXTRACTORSERVICE_H
+#define ANDROID_IMEDIAEXTRACTORSERVICE_H
+
+#include <binder/IInterface.h>
+#include <binder/IMemory.h>
+#include <binder/Parcel.h>
+#include <media/IDataSource.h>
+#include <media/IMediaExtractor.h>
+
+namespace android {
+
+class IMediaExtractorService: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaExtractorService);
+
+    virtual sp<IMediaExtractor> makeExtractor(const sp<IDataSource> &source, const char *mime) = 0;
+
+    virtual sp<IDataSource> makeIDataSource(int fd, int64_t offset, int64_t length) = 0;
+};
+
+class BnMediaExtractorService: public BnInterface<IMediaExtractorService>
+{
+public:
+    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
+                                uint32_t flags = 0);
+};
+
+}   // namespace android
+
+#endif  // ANDROID_IMEDIAEXTRACTORSERVICE_H
diff --git a/include/media/IMediaHTTPConnection.h b/media/libmedia/include/media/IMediaHTTPConnection.h
similarity index 100%
rename from include/media/IMediaHTTPConnection.h
rename to media/libmedia/include/media/IMediaHTTPConnection.h
diff --git a/include/media/IMediaHTTPService.h b/media/libmedia/include/media/IMediaHTTPService.h
similarity index 100%
rename from include/media/IMediaHTTPService.h
rename to media/libmedia/include/media/IMediaHTTPService.h
diff --git a/media/libmedia/include/media/IMediaLogService.h b/media/libmedia/include/media/IMediaLogService.h
new file mode 100644
index 0000000..1df1907
--- /dev/null
+++ b/media/libmedia/include/media/IMediaLogService.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIALOGSERVICE_H
+#define ANDROID_IMEDIALOGSERVICE_H
+
+#include <binder/IInterface.h>
+#include <binder/IMemory.h>
+#include <binder/Parcel.h>
+
+namespace android {
+
+class IMediaLogService: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaLogService);
+
+    virtual void    registerWriter(const sp<IMemory>& shared, size_t size, const char *name) = 0;
+    virtual void    unregisterWriter(const sp<IMemory>& shared) = 0;
+
+    virtual void    requestMergeWakeup() = 0;
+};
+
+class BnMediaLogService: public BnInterface<IMediaLogService>
+{
+public:
+    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
+                                uint32_t flags = 0);
+};
+
+}   // namespace android
+
+#endif  // ANDROID_IMEDIALOGSERVICE_H
diff --git a/include/media/IMediaMetadataRetriever.h b/media/libmedia/include/media/IMediaMetadataRetriever.h
similarity index 100%
rename from include/media/IMediaMetadataRetriever.h
rename to media/libmedia/include/media/IMediaMetadataRetriever.h
diff --git a/media/libmedia/include/media/IMediaPlayer.h b/media/libmedia/include/media/IMediaPlayer.h
new file mode 100644
index 0000000..e5a98dd
--- /dev/null
+++ b/media/libmedia/include/media/IMediaPlayer.h
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIAPLAYER_H
+#define ANDROID_IMEDIAPLAYER_H
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include <utils/KeyedVector.h>
+#include <system/audio.h>
+
+#include <media/IMediaSource.h>
+#include <media/VolumeShaper.h>
+
+// Fwd decl to make sure everyone agrees that the scope of struct sockaddr_in is
+// global, and not in android::
+struct sockaddr_in;
+
+namespace android {
+
+class Parcel;
+class Surface;
+class IDataSource;
+struct IStreamSource;
+class IGraphicBufferProducer;
+struct IMediaHTTPService;
+struct AudioPlaybackRate;
+struct AVSyncSettings;
+struct BufferingSettings;
+
+typedef IMediaSource::ReadOptions::SeekMode MediaPlayerSeekMode;
+
+class IMediaPlayer: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaPlayer);
+
+    virtual void            disconnect() = 0;
+
+    virtual status_t        setDataSource(
+            const sp<IMediaHTTPService> &httpService,
+            const char *url,
+            const KeyedVector<String8, String8>* headers) = 0;
+
+    virtual status_t        setDataSource(int fd, int64_t offset, int64_t length) = 0;
+    virtual status_t        setDataSource(const sp<IStreamSource>& source) = 0;
+    virtual status_t        setDataSource(const sp<IDataSource>& source) = 0;
+    virtual status_t        setVideoSurfaceTexture(
+                                    const sp<IGraphicBufferProducer>& bufferProducer) = 0;
+    virtual status_t        getDefaultBufferingSettings(
+                                    BufferingSettings* buffering /* nonnull */) = 0;
+    virtual status_t        setBufferingSettings(const BufferingSettings& buffering) = 0;
+    virtual status_t        prepareAsync() = 0;
+    virtual status_t        start() = 0;
+    virtual status_t        stop() = 0;
+    virtual status_t        pause() = 0;
+    virtual status_t        isPlaying(bool* state) = 0;
+    virtual status_t        setPlaybackSettings(const AudioPlaybackRate& rate) = 0;
+    virtual status_t        getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) = 0;
+    virtual status_t        setSyncSettings(const AVSyncSettings& sync, float videoFpsHint) = 0;
+    virtual status_t        getSyncSettings(AVSyncSettings* sync /* nonnull */,
+                                            float* videoFps /* nonnull */) = 0;
+    virtual status_t        seekTo(
+            int msec,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) = 0;
+    virtual status_t        getCurrentPosition(int* msec) = 0;
+    virtual status_t        getDuration(int* msec) = 0;
+    virtual status_t        reset() = 0;
+    virtual status_t        setAudioStreamType(audio_stream_type_t type) = 0;
+    virtual status_t        setLooping(int loop) = 0;
+    virtual status_t        setVolume(float leftVolume, float rightVolume) = 0;
+    virtual status_t        setAuxEffectSendLevel(float level) = 0;
+    virtual status_t        attachAuxEffect(int effectId) = 0;
+    virtual status_t        setParameter(int key, const Parcel& request) = 0;
+    virtual status_t        getParameter(int key, Parcel* reply) = 0;
+    virtual status_t        setRetransmitEndpoint(const struct sockaddr_in* endpoint) = 0;
+    virtual status_t        getRetransmitEndpoint(struct sockaddr_in* endpoint) = 0;
+    virtual status_t        setNextPlayer(const sp<IMediaPlayer>& next) = 0;
+
+    virtual VolumeShaper::Status applyVolumeShaper(
+                                    const sp<VolumeShaper::Configuration>& configuration,
+                                    const sp<VolumeShaper::Operation>& operation) = 0;
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) = 0;
+
+    // Modular DRM
+    virtual status_t        prepareDrm(const uint8_t uuid[16],
+                                    const Vector<uint8_t>& drmSessionId) = 0;
+    virtual status_t        releaseDrm() = 0;
+
+    // Invoke a generic method on the player by using opaque parcels
+    // for the request and reply.
+    // @param request Parcel that must start with the media player
+    // interface token.
+    // @param[out] reply Parcel to hold the reply data. Cannot be null.
+    // @return OK if the invocation was made successfully.
+    virtual status_t        invoke(const Parcel& request, Parcel *reply) = 0;
+
+    // Set a new metadata filter.
+    // @param filter A set of allow and drop rules serialized in a Parcel.
+    // @return OK if the invocation was made successfully.
+    virtual status_t        setMetadataFilter(const Parcel& filter) = 0;
+
+    // Retrieve a set of metadata.
+    // @param update_only Include only the metadata that have changed
+    //                    since the last invocation of getMetadata.
+    //                    The set is built using the unfiltered
+    //                    notifications the native player sent to the
+    //                    MediaPlayerService during that period of
+    //                    time. If false, all the metadatas are considered.
+    // @param apply_filter If true, once the metadata set has been built based
+    //                     on the value update_only, the current filter is
+    //                     applied.
+    // @param[out] metadata On exit contains a set (possibly empty) of metadata.
+    //                      Valid only if the call returned OK.
+    // @return OK if the invocation was made successfully.
+    virtual status_t        getMetadata(bool update_only,
+                                        bool apply_filter,
+                                        Parcel *metadata) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnMediaPlayer: public BnInterface<IMediaPlayer>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif // ANDROID_IMEDIAPLAYER_H
diff --git a/include/media/IMediaPlayerClient.h b/media/libmedia/include/media/IMediaPlayerClient.h
similarity index 100%
rename from include/media/IMediaPlayerClient.h
rename to media/libmedia/include/media/IMediaPlayerClient.h
diff --git a/media/libmedia/include/media/IMediaPlayerService.h b/media/libmedia/include/media/IMediaPlayerService.h
new file mode 100644
index 0000000..f21bb3a
--- /dev/null
+++ b/media/libmedia/include/media/IMediaPlayerService.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIAPLAYERSERVICE_H
+#define ANDROID_IMEDIAPLAYERSERVICE_H
+
+#include <utils/Errors.h>  // for status_t
+#include <utils/KeyedVector.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include <system/audio.h>
+
+#include <media/IMediaPlayerClient.h>
+#include <media/IMediaPlayer.h>
+#include <media/IMediaMetadataRetriever.h>
+
+namespace android {
+
+struct IHDCP;
+class IMediaCodecList;
+struct IMediaHTTPService;
+class IMediaRecorder;
+class IOMX;
+class IRemoteDisplay;
+class IRemoteDisplayClient;
+struct IStreamSource;
+
+class IMediaPlayerService: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaPlayerService);
+
+    virtual sp<IMediaRecorder> createMediaRecorder(const String16 &opPackageName) = 0;
+    virtual sp<IMediaMetadataRetriever> createMetadataRetriever() = 0;
+    virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client,
+            audio_session_t audioSessionId = AUDIO_SESSION_ALLOCATE) = 0;
+    virtual sp<IOMX>            getOMX() = 0;
+    virtual sp<IHDCP>           makeHDCP(bool createEncryptionModule) = 0;
+    virtual sp<IMediaCodecList> getCodecList() const = 0;
+
+    // Connects to a remote display.
+    // 'iface' specifies the address of the local interface on which to listen for
+    // a connection from the remote display as an ip address and port number
+    // of the form "x.x.x.x:y".  The media server should call back into the provided remote
+    // display client when display connection, disconnection or errors occur.
+    // The assumption is that at most one remote display will be connected to the
+    // provided interface at a time.
+    virtual sp<IRemoteDisplay> listenForRemoteDisplay(const String16 &opPackageName,
+            const sp<IRemoteDisplayClient>& client, const String8& iface) = 0;
+
+    // codecs and audio devices usage tracking for the battery app
+    enum BatteryDataBits {
+        // tracking audio codec
+        kBatteryDataTrackAudio          = 0x1,
+        // tracking video codec
+        kBatteryDataTrackVideo          = 0x2,
+        // codec is started, otherwise codec is paused
+        kBatteryDataCodecStarted        = 0x4,
+        // tracking decoder (for media player),
+        // otherwise tracking encoder (for media recorder)
+        kBatteryDataTrackDecoder        = 0x8,
+        // start to play an audio on an audio device
+        kBatteryDataAudioFlingerStart   = 0x10,
+        // stop/pause the audio playback
+        kBatteryDataAudioFlingerStop    = 0x20,
+        // audio is rounted to speaker
+        kBatteryDataSpeakerOn           = 0x40,
+        // audio is rounted to devices other than speaker
+        kBatteryDataOtherAudioDeviceOn  = 0x80,
+    };
+
+    virtual void addBatteryData(uint32_t params) = 0;
+    virtual status_t pullBatteryData(Parcel* reply) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnMediaPlayerService: public BnInterface<IMediaPlayerService>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif // ANDROID_IMEDIAPLAYERSERVICE_H
diff --git a/media/libmedia/include/media/IMediaRecorder.h b/media/libmedia/include/media/IMediaRecorder.h
new file mode 100644
index 0000000..9d0341a
--- /dev/null
+++ b/media/libmedia/include/media/IMediaRecorder.h
@@ -0,0 +1,82 @@
+/*
+ **
+ ** Copyright 2008, The Android Open Source Project
+ **
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ **
+ **     http://www.apache.org/licenses/LICENSE-2.0
+ **
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ ** limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIARECORDER_H
+#define ANDROID_IMEDIARECORDER_H
+
+#include <binder/IInterface.h>
+
+namespace android {
+
+class Surface;
+namespace hardware {
+class ICamera;
+}
+class ICameraRecordingProxy;
+class IMediaRecorderClient;
+class IGraphicBufferProducer;
+struct PersistentSurface;
+
+class IMediaRecorder: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaRecorder);
+
+    virtual status_t setCamera(const sp<hardware::ICamera>& camera,
+                               const sp<ICameraRecordingProxy>& proxy) = 0;
+    virtual status_t setPreviewSurface(const sp<IGraphicBufferProducer>& surface) = 0;
+    virtual status_t setVideoSource(int vs) = 0;
+    virtual status_t setAudioSource(int as) = 0;
+    virtual status_t setOutputFormat(int of) = 0;
+    virtual status_t setVideoEncoder(int ve) = 0;
+    virtual status_t setAudioEncoder(int ae) = 0;
+    virtual status_t setOutputFile(int fd) = 0;
+    virtual status_t setNextOutputFile(int fd) = 0;
+    virtual status_t setVideoSize(int width, int height) = 0;
+    virtual status_t setVideoFrameRate(int frames_per_second) = 0;
+    virtual status_t setParameters(const String8& params) = 0;
+    virtual status_t setListener(const sp<IMediaRecorderClient>& listener) = 0;
+    virtual status_t setClientName(const String16& clientName) = 0;
+    virtual status_t prepare() = 0;
+    virtual status_t getMaxAmplitude(int* max) = 0;
+    virtual status_t getMetrics(Parcel *reply) = 0;
+    virtual status_t start() = 0;
+    virtual status_t stop() = 0;
+    virtual status_t reset() = 0;
+    virtual status_t pause() = 0;
+    virtual status_t resume() = 0;
+    virtual status_t init() = 0;
+    virtual status_t close() = 0;
+    virtual status_t release() = 0;
+    virtual status_t setInputSurface(const sp<PersistentSurface>& surface) = 0;
+    virtual sp<IGraphicBufferProducer> querySurfaceMediaSource() = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnMediaRecorder: public BnInterface<IMediaRecorder>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif // ANDROID_IMEDIARECORDER_H
diff --git a/include/media/IMediaRecorderClient.h b/media/libmedia/include/media/IMediaRecorderClient.h
similarity index 100%
rename from include/media/IMediaRecorderClient.h
rename to media/libmedia/include/media/IMediaRecorderClient.h
diff --git a/media/libmedia/include/media/IMediaSource.h b/media/libmedia/include/media/IMediaSource.h
new file mode 100644
index 0000000..2bde782
--- /dev/null
+++ b/media/libmedia/include/media/IMediaSource.h
@@ -0,0 +1,267 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef IMEDIA_SOURCE_BASE_H_
+
+#define IMEDIA_SOURCE_BASE_H_
+
+#include <map>
+
+#include <binder/IInterface.h>
+#include <binder/IMemory.h>
+#include <media/stagefright/MediaBuffer.h>
+#include <media/stagefright/MediaErrors.h>
+
+namespace android {
+
+struct MediaSource;
+class MetaData;
+class MediaBufferGroup;
+
+class IMediaSource : public IInterface {
+public:
+    DECLARE_META_INTERFACE(MediaSource);
+
+    enum {
+        // Maximum number of buffers would be read in readMultiple.
+        kMaxNumReadMultiple = 128,
+    };
+
+    // To be called before any other methods on this object, except
+    // getFormat().
+    virtual status_t start(MetaData *params = NULL) = 0;
+
+    // Any blocking read call returns immediately with a result of NO_INIT.
+    // It is an error to call any methods other than start after this call
+    // returns. Any buffers the object may be holding onto at the time of
+    // the stop() call are released.
+    // Also, it is imperative that any buffers output by this object and
+    // held onto by callers be released before a call to stop() !!!
+    virtual status_t stop() = 0;
+
+    // Returns the format of the data output by this media source.
+    virtual sp<MetaData> getFormat() = 0;
+
+    // Options that modify read() behaviour. The default is to
+    // a) not request a seek
+    // b) not be late, i.e. lateness_us = 0
+    struct ReadOptions {
+        enum SeekMode : int32_t {
+            SEEK_PREVIOUS_SYNC,
+            SEEK_NEXT_SYNC,
+            SEEK_CLOSEST_SYNC,
+            SEEK_CLOSEST,
+        };
+
+        ReadOptions();
+
+        // Reset everything back to defaults.
+        void reset();
+
+        void setSeekTo(int64_t time_us, SeekMode mode = SEEK_CLOSEST_SYNC);
+        void clearSeekTo();
+        bool getSeekTo(int64_t *time_us, SeekMode *mode) const;
+
+        // TODO: remove this if unused.
+        void setLateBy(int64_t lateness_us);
+        int64_t getLateBy() const;
+
+        void setNonBlocking();
+        void clearNonBlocking();
+        bool getNonBlocking() const;
+
+        // Used to clear all non-persistent options for multiple buffer reads.
+        void clearNonPersistent() {
+            clearSeekTo();
+        }
+
+    private:
+        enum Options {
+            kSeekTo_Option      = 1,
+        };
+
+        uint32_t mOptions;
+        int64_t mSeekTimeUs;
+        SeekMode mSeekMode;
+        int64_t mLatenessUs;
+        bool mNonBlocking;
+    } __attribute__((packed)); // sent through Binder
+
+    // Returns a new buffer of data. Call blocks until a
+    // buffer is available, an error is encountered or the end of the stream
+    // is reached.
+    // End of stream is signalled by a result of ERROR_END_OF_STREAM.
+    // A result of INFO_FORMAT_CHANGED indicates that the format of this
+    // MediaSource has changed mid-stream, the client can continue reading
+    // but should be prepared for buffers of the new configuration.
+    //
+    // TODO: consider removing read() in favor of readMultiple().
+    virtual status_t read(
+            MediaBuffer **buffer, const ReadOptions *options = NULL) = 0;
+
+    // Returns a vector of new buffers of data, where the new buffers are added
+    // to the end of the vector.
+    // Call blocks until an error is encountered, or the end of the stream is
+    // reached, or format change is hit, or |kMaxNumReadMultiple| buffers have
+    // been read.
+    // End of stream is signaled by a result of ERROR_END_OF_STREAM.
+    // A result of INFO_FORMAT_CHANGED indicates that the format of this
+    // MediaSource has changed mid-stream, the client can continue reading
+    // but should be prepared for buffers of the new configuration.
+    //
+    // ReadOptions may be specified. Persistent options apply to all reads;
+    // non-persistent options (e.g. seek) apply only to the first read.
+    virtual status_t readMultiple(
+            Vector<MediaBuffer *> *buffers, uint32_t maxNumBuffers = 1,
+            const ReadOptions *options = nullptr) = 0;
+
+    // Returns true if |readMultiple| is supported, otherwise false.
+    virtual bool supportReadMultiple() = 0;
+
+    // Returns true if |read| supports nonblocking option, otherwise false.
+    // |readMultiple| if supported, always allows the nonblocking option.
+    virtual bool supportNonblockingRead() = 0;
+
+    // Causes this source to suspend pulling data from its upstream source
+    // until a subsequent read-with-seek. Currently only supported by
+    // OMXCodec.
+    virtual status_t pause()  = 0;
+
+    // The consumer of this media source requests that the given buffers
+    // are to be returned exclusively in response to read calls.
+    // This will be called after a successful start() and before the
+    // first read() call.
+    // Callee assumes ownership of the buffers if no error is returned.
+    virtual status_t setBuffers(const Vector<MediaBuffer *> & /* buffers */) = 0;
+
+};
+
+class BnMediaSource: public BnInterface<IMediaSource>
+{
+public:
+    BnMediaSource();
+
+    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
+                                uint32_t flags = 0);
+
+    virtual status_t pause() {
+        return ERROR_UNSUPPORTED;
+    }
+
+    virtual status_t setBuffers(const Vector<MediaBuffer *> & /* buffers */) {
+        return ERROR_UNSUPPORTED;
+    }
+
+    // TODO: Implement this for local media sources.
+    virtual status_t readMultiple(
+            Vector<MediaBuffer *> * /* buffers */, uint32_t /* maxNumBuffers = 1 */,
+            const ReadOptions * /* options = nullptr */) {
+        return ERROR_UNSUPPORTED;
+    }
+
+    virtual bool supportReadMultiple() {
+        return false;
+    }
+
+    // Override in source if nonblocking reads are supported.
+    virtual bool supportNonblockingRead() {
+        return false;
+    }
+
+    static const size_t kBinderMediaBuffers = 4; // buffers managed by BnMediaSource
+    static const size_t kTransferSharedAsSharedThreshold = 4 * 1024;  // if >= shared, else inline
+    static const size_t kTransferInlineAsSharedThreshold = 64 * 1024; // if >= shared, else inline
+    static const size_t kInlineMaxTransfer = 256 * 1024; // Binder size limited to BINDER_VM_SIZE.
+
+protected:
+    virtual ~BnMediaSource();
+
+private:
+    uint32_t mBuffersSinceStop; // Buffer tracking variable
+
+    std::unique_ptr<MediaBufferGroup> mGroup;
+
+    // To prevent marshalling IMemory with each read transaction, we cache the IMemory pointer
+    // into a map.
+    //
+    // This is converted into an index, which is used to identify the associated memory
+    // on the receiving side.  We hold a reference to the IMemory here to ensure it doesn't
+    // change underneath us.
+
+    struct IndexCache {
+        IndexCache() : mIndex(0) { }
+
+        // Returns the index of the IMemory stored in cache or 0 if not found.
+        uint64_t lookup(const sp<IMemory> &mem) {
+            auto p = mMemoryToIndex.find(mem.get());
+            if (p == mMemoryToIndex.end()) {
+                return 0;
+            }
+            if (MediaBuffer::isDeadObject(p->second.first)) {
+                // this object's dead
+                ALOGW("Attempting to lookup a dead IMemory");
+                (void)mMemoryToIndex.erase(p);
+                return 0;
+            }
+            ALOGW_IF(p->second.first.get() != mem.get(), "Mismatched buffers without reset");
+            return p->second.second;
+        }
+
+        // Returns the index of the IMemory stored in the index cache.
+        uint64_t insert(const sp<IMemory> &mem) {
+            auto p = mMemoryToIndex.find(mem.get());
+            if (p == mMemoryToIndex.end()) {
+                if (mIndex == UINT64_MAX) {
+                    ALOGE("Index overflow");
+                    mIndex = 1; // skip overflow condition and hope for the best
+                } else {
+                    ++mIndex;
+                }
+                (void)mMemoryToIndex.emplace(// C++11 mem.get(), std::make_pair(mem, mIndex))
+                        std::piecewise_construct,
+                        std::forward_as_tuple(mem.get()), std::forward_as_tuple(mem, mIndex));
+                return mIndex;
+            }
+            ALOGW("IMemory already inserted into cache");
+            return p->second.second;
+        }
+
+        void reset() {
+            mMemoryToIndex.clear();
+            mIndex = 0;
+        }
+
+        void gc() {
+            for (auto it = mMemoryToIndex.begin(); it != mMemoryToIndex.end(); ) {
+                if (MediaBuffer::isDeadObject(it->second.first)) {
+                    it = mMemoryToIndex.erase(it);
+                } else {
+                    ++it;
+                }
+            }
+        }
+
+    private:
+        uint64_t mIndex;
+        // C++14 unordered_map erase on iterator is stable; C++11 has no guarantee.
+        // Could key on uintptr_t instead of IMemory *
+        std::map<IMemory *, std::pair<sp<IMemory>, uint64_t>> mMemoryToIndex;
+    } mIndexCache;
+};
+
+}  // namespace android
+
+#endif  // IMEDIA_SOURCE_BASE_H_
diff --git a/media/libmedia/include/media/IOMX.h b/media/libmedia/include/media/IOMX.h
new file mode 100644
index 0000000..9a0ada1
--- /dev/null
+++ b/media/libmedia/include/media/IOMX.h
@@ -0,0 +1,256 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IOMX_H_
+
+#define ANDROID_IOMX_H_
+
+#include <binder/IInterface.h>
+#include <utils/List.h>
+#include <utils/String8.h>
+#include <cutils/native_handle.h>
+
+#include <list>
+
+#include <hidl/HybridInterface.h>
+#include <media/hardware/MetadataBufferType.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+
+#include <OMX_Core.h>
+#include <OMX_Video.h>
+
+namespace android {
+
+class IGraphicBufferProducer;
+class IGraphicBufferSource;
+class IMemory;
+class IOMXBufferSource;
+class IOMXNode;
+class IOMXObserver;
+class NativeHandle;
+class OMXBuffer;
+struct omx_message;
+
+using hardware::media::omx::V1_0::IOmxNode;
+
+class IOMX : public IInterface {
+public:
+    DECLARE_META_INTERFACE(OMX);
+
+    typedef uint32_t buffer_id;
+
+    enum {
+        kFenceTimeoutMs = 1000
+    };
+
+    enum PortMode {
+        kPortModePresetStart = 0,
+        kPortModePresetByteBuffer,
+        kPortModePresetANWBuffer,
+        kPortModePresetSecureBuffer,
+        kPortModePresetEnd,
+
+        kPortModeDynamicStart = 100,
+        kPortModeDynamicANWBuffer,      // uses metadata mode kMetadataBufferTypeANWBuffer
+                                        // or kMetadataBufferTypeGrallocSource
+        kPortModeDynamicNativeHandle,   // uses metadata mode kMetadataBufferTypeNativeHandleSource
+        kPortModeDynamicEnd,
+    };
+
+    struct ComponentInfo {
+        String8 mName;
+        List<String8> mRoles;
+    };
+    virtual status_t listNodes(List<ComponentInfo> *list) = 0;
+
+    virtual status_t allocateNode(
+            const char *name, const sp<IOMXObserver> &observer,
+            sp<IOMXNode> *omxNode) = 0;
+
+    virtual status_t createInputSurface(
+            sp<IGraphicBufferProducer> *bufferProducer,
+            sp<IGraphicBufferSource> *bufferSource) = 0;
+};
+
+class IOMXNode : public IInterface {
+public:
+    DECLARE_HYBRID_META_INTERFACE(OMXNode, IOmxNode);
+
+    typedef IOMX::buffer_id buffer_id;
+
+    virtual status_t freeNode() = 0;
+
+    virtual status_t sendCommand(
+            OMX_COMMANDTYPE cmd, OMX_S32 param) = 0;
+
+    virtual status_t getParameter(
+            OMX_INDEXTYPE index, void *params, size_t size) = 0;
+
+    virtual status_t setParameter(
+            OMX_INDEXTYPE index, const void *params, size_t size) = 0;
+
+    virtual status_t getConfig(
+            OMX_INDEXTYPE index, void *params, size_t size) = 0;
+
+    virtual status_t setConfig(
+            OMX_INDEXTYPE index, const void *params, size_t size) = 0;
+
+    virtual status_t setPortMode(
+            OMX_U32 port_index, IOMX::PortMode mode) = 0;
+
+    virtual status_t prepareForAdaptivePlayback(
+            OMX_U32 portIndex, OMX_BOOL enable,
+            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) = 0;
+
+    virtual status_t configureVideoTunnelMode(
+            OMX_U32 portIndex, OMX_BOOL tunneled,
+            OMX_U32 audioHwSync, native_handle_t **sidebandHandle) = 0;
+
+    virtual status_t getGraphicBufferUsage(
+            OMX_U32 port_index, OMX_U32* usage) = 0;
+
+    virtual status_t setInputSurface(
+            const sp<IOMXBufferSource> &bufferSource) = 0;
+
+    // Allocate an opaque buffer as a native handle. If component supports returning native
+    // handles, those are returned in *native_handle. Otherwise, the allocated buffer is
+    // returned in *buffer_data. This clearly only makes sense if the caller lives in the
+    // same process as the callee, i.e. is the media_server, as the returned "buffer_data"
+    // pointer is just that, a pointer into local address space.
+    virtual status_t allocateSecureBuffer(
+            OMX_U32 port_index, size_t size, buffer_id *buffer,
+            void **buffer_data, sp<NativeHandle> *native_handle) = 0;
+
+    // Instructs the component to use the buffer passed in via |omxBuf| on the
+    // specified port. Returns in |*buffer| the buffer id that the component
+    // assigns to this buffer. |omxBuf| must be one of:
+    // 1) OMXBuffer::sPreset for meta-mode,
+    // 2) type kBufferTypeANWBuffer for non-meta-graphic buffer mode,
+    // 3) type kBufferTypeSharedMem for bytebuffer mode.
+    virtual status_t useBuffer(
+            OMX_U32 port_index, const OMXBuffer &omxBuf, buffer_id *buffer) = 0;
+
+    // Frees the buffer on the specified port with buffer id |buffer|.
+    virtual status_t freeBuffer(
+            OMX_U32 port_index, buffer_id buffer) = 0;
+
+    // Calls OMX_FillBuffer on buffer. Passes |fenceFd| to component if it
+    // supports fences. Otherwise, it waits on |fenceFd| before calling
+    // OMX_FillBuffer. Takes ownership of |fenceFd| even if this call fails.
+    // If the port is in metadata mode, the buffer will be updated to point
+    // to the new buffer passed in via |omxBuf| before OMX_FillBuffer is called.
+    // Otherwise info in the |omxBuf| is not used.
+    virtual status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf, int fenceFd = -1) = 0;
+
+    // Calls OMX_EmptyBuffer on buffer. Passes |fenceFd| to component if it
+    // supports fences. Otherwise, it waits on |fenceFd| before calling
+    // OMX_EmptyBuffer. Takes ownership of |fenceFd| even if this call fails.
+    // If the port is in metadata mode, the buffer will be updated to point
+    // to the new buffer passed in via |omxBuf| before OMX_EmptyBuffer is called.
+    virtual status_t emptyBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1) = 0;
+
+    virtual status_t getExtensionIndex(
+            const char *parameter_name,
+            OMX_INDEXTYPE *index) = 0;
+
+    virtual status_t dispatchMessage(const omx_message &msg) = 0;
+};
+
+struct omx_message {
+    enum {
+        EVENT,
+        EMPTY_BUFFER_DONE,
+        FILL_BUFFER_DONE,
+        FRAME_RENDERED,
+    } type;
+
+    int fenceFd; // used for EMPTY_BUFFER_DONE and FILL_BUFFER_DONE; client must close this
+
+    union {
+        // if type == EVENT
+        struct {
+            OMX_EVENTTYPE event;
+            OMX_U32 data1;
+            OMX_U32 data2;
+            OMX_U32 data3;
+            OMX_U32 data4;
+        } event_data;
+
+        // if type == EMPTY_BUFFER_DONE
+        struct {
+            IOMX::buffer_id buffer;
+        } buffer_data;
+
+        // if type == FILL_BUFFER_DONE
+        struct {
+            IOMX::buffer_id buffer;
+            OMX_U32 range_offset;
+            OMX_U32 range_length;
+            OMX_U32 flags;
+            OMX_TICKS timestamp;
+        } extended_buffer_data;
+
+        // if type == FRAME_RENDERED
+        struct {
+            OMX_TICKS timestamp;
+            OMX_S64 nanoTime;
+        } render_data;
+    } u;
+};
+
+class IOMXObserver : public IInterface {
+public:
+    DECLARE_META_INTERFACE(OMXObserver);
+
+    // Handle (list of) messages.
+    virtual void onMessages(const std::list<omx_message> &messages) = 0;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+
+class BnOMX : public BnInterface<IOMX> {
+public:
+    virtual status_t onTransact(
+            uint32_t code, const Parcel &data, Parcel *reply,
+            uint32_t flags = 0);
+};
+
+class BnOMXNode : public BnInterface<IOMXNode> {
+public:
+    virtual status_t onTransact(
+            uint32_t code, const Parcel &data, Parcel *reply,
+            uint32_t flags = 0);
+
+protected:
+    // check if the codec is secure.
+    virtual bool isSecure() const {
+        return false;
+    }
+};
+
+class BnOMXObserver : public BnInterface<IOMXObserver> {
+public:
+    virtual status_t onTransact(
+            uint32_t code, const Parcel &data, Parcel *reply,
+            uint32_t flags = 0);
+};
+
+}  // namespace android
+
+#endif  // ANDROID_IOMX_H_
diff --git a/include/media/IRemoteDisplay.h b/media/libmedia/include/media/IRemoteDisplay.h
similarity index 100%
rename from include/media/IRemoteDisplay.h
rename to media/libmedia/include/media/IRemoteDisplay.h
diff --git a/include/media/IRemoteDisplayClient.h b/media/libmedia/include/media/IRemoteDisplayClient.h
similarity index 100%
rename from include/media/IRemoteDisplayClient.h
rename to media/libmedia/include/media/IRemoteDisplayClient.h
diff --git a/include/media/IResourceManagerClient.h b/media/libmedia/include/media/IResourceManagerClient.h
similarity index 100%
rename from include/media/IResourceManagerClient.h
rename to media/libmedia/include/media/IResourceManagerClient.h
diff --git a/include/media/IResourceManagerService.h b/media/libmedia/include/media/IResourceManagerService.h
similarity index 100%
rename from include/media/IResourceManagerService.h
rename to media/libmedia/include/media/IResourceManagerService.h
diff --git a/include/media/IStreamSource.h b/media/libmedia/include/media/IStreamSource.h
similarity index 100%
rename from include/media/IStreamSource.h
rename to media/libmedia/include/media/IStreamSource.h
diff --git a/include/media/JetPlayer.h b/media/libmedia/include/media/JetPlayer.h
similarity index 100%
rename from include/media/JetPlayer.h
rename to media/libmedia/include/media/JetPlayer.h
diff --git a/media/libmedia/include/media/LinearMap.h b/media/libmedia/include/media/LinearMap.h
new file mode 100644
index 0000000..2220a0c
--- /dev/null
+++ b/media/libmedia/include/media/LinearMap.h
@@ -0,0 +1,366 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_LINEAR_MAP_H
+#define ANDROID_LINEAR_MAP_H
+
+#include <stdint.h>
+
+namespace android {
+
+/*
+A general purpose lookup utility that defines a mapping between X and Y as a
+continuous set of line segments with shared (x, y) end-points.
+The (x, y) points must be added in order, monotonically increasing in both x and y;
+a log warning is emitted if this does not happen (See general usage notes below).
+
+A limited history of (x, y) points is kept for space reasons (See general usage notes).
+
+In AudioFlinger, we use the LinearMap to associate track frames to
+sink frames.  When we want to obtain a client track timestamp, we first
+get a timestamp from the sink.  The sink timestamp's position (mPosition)
+corresponds to the sink frames written. We use LinearMap to figure out which track frame
+the sink frame corresponds to. This allows us to substitute a track frame for the
+the sink frame (keeping the mTime identical) and return that timestamp back to the client.
+
+The method findX() can be used to retrieve an x value from a given y value and is
+used for timestamps, similarly for findY() which is provided for completeness.
+
+We update the (track frame, sink frame) points in the LinearMap each time we write data
+to the sink by the AudioFlinger PlaybackThread (MixerThread).
+
+
+AudioFlinger Timestamp Notes:
+
+1) Example: Obtaining a track timestamp during playback.  In this case, the LinearMap
+looks something like this:
+
+Track Frame    Sink Frame
+(track start)
+0              50000  (track starts here, the sink may already be running)
+1000           51000
+2000           52000
+
+When we request a track timestamp, we call the sink getTimestamp() and get for example
+mPosition = 51020.  Using the LinearMap, we find we have played to track frame 1020.
+We substitute the sink mPosition of 51020 with the track position 1020,
+and return that timestamp to the app.
+
+2) Example: Obtaining a track timestamp duing pause. In this case, the LinearMap
+looks something like this:
+
+Track Frame    Sink Frame
+... (some time has gone by)
+15000          30000
+16000          31000
+17000          32000
+(pause here)
+(suppose we call sink getTimestamp() here and get sink mPosition = 31100; that means
+        we have played to track frame 16100.  The track timestamp mPosition will
+        continue to advance until the sink timestamp returns a value of mPosition
+        greater than 32000, corresponding to track frame 17000 when the pause was called).
+17000          33000
+17000          34000
+...
+
+3) If the track underruns, it appears as if a pause was called on that track.
+
+4) If there is an underrun in the HAL layer, then it may be possible that
+the sink getTimestamp() will return a value greater than the number of frames written
+(it should always be less). This should be rare, if not impossible by some
+HAL implementations of the sink getTimestamp. In that case, timing is lost
+and we will return the most recent track frame written.
+
+5) When called with no points in the map, findX() returns the start value (default 0).
+This is consistent with starting after a stop() or flush().
+
+6) Resuming after Track standby will be similar to coming out of pause, as the HAL ensures
+framesWritten() and getTimestamp() are contiguous for non-offloaded/direct tracks.
+
+7) LinearMap works for different speeds and sample rates as it uses
+linear interpolation. Since AudioFlinger only updates speed and sample rate
+exactly at the sample points pushed into the LinearMap, the returned values
+from findX() and findY() are accurate regardless of how many speed or sample
+rate changes are made, so long as the coordinate looked up is within the
+sample history.
+
+General usage notes:
+
+1) In order for the LinearMap to work reliably, you cannot look backwards more
+than the size of its circular buffer history, set upon creation (typically 16).
+If you look back further, the position is extrapolated either from a passed in
+extrapolation parameter or from the oldest line segment.
+
+2) Points must monotonically increase in x and y. The increment between adjacent
+points cannot be greater than signed 32 bits. Wrap in the x, y coordinates are supported,
+since we use differences in our computation.
+
+3) If the frame data is discontinuous (due to stop or flush) call reset() to clear
+the sample counter.
+
+4) If (x, y) are not strictly monotonic increasing, i.e. (x2 > x1) and (y2 > y1),
+then one or both of the inverses y = f(x) or x = g(y) may have multiple solutions.
+In that case, the most recent solution is returned by findX() or findY().  We
+do not warn if (x2 == x1) or (y2 == y1), but we do logcat warn if (x2 < x1) or
+(y2 < y1).
+
+5) Due to rounding it is possible x != findX(findY(x)) or y != findY(findX(y))
+even when the inverse exists. Nevertheless, the values should be close.
+
+*/
+
+template <typename T>
+class LinearMap {
+public:
+    // This enumeration describes the reliability of the findX() or findY() estimation
+    // in descending order.
+    enum FindMethod {
+        FIND_METHOD_INTERPOLATION,           // High reliability (errors due to rounding)
+        FIND_METHOD_FORWARD_EXTRAPOLATION,   // Reliability based on no future speed changes
+        FIND_METHOD_BACKWARD_EXTRAPOLATION,  // Reliability based on prior estimated speed
+        FIND_METHOD_START_VALUE,             // No samples in history, using start value
+    };
+
+    explicit LinearMap(size_t size)
+            : mSize(size),
+              mPos(0), // a circular buffer, so could start anywhere. the first sample is at 1.
+              mSamples(0),
+              // mStepValid(false),      // only valid if mSamples > 1
+              // mExtrapolateTail(false), // only valid if mSamples > 0
+              mX(new T[size]),
+              mY(new T[size]) { }
+
+    ~LinearMap() {
+        delete[] mX;
+        delete[] mY;
+    }
+
+    // Add a new sample point to the linear map.
+    //
+    // The difference between the new sample and the previous sample
+    // in the x or y coordinate must be less than INT32_MAX for purposes
+    // of the linear interpolation or extrapolation.
+    //
+    // The value should be monotonic increasing (e.g. diff >= 0);
+    // logcat warnings are issued if they are not.
+    __attribute__((no_sanitize("integer")))
+    void push(T x, T y) {
+        // Assumption: we assume x, y are monotonic increasing values,
+        // which (can) wrap in precision no less than 32 bits and have
+        // "step" or differences between adjacent points less than 32 bits.
+
+        if (mSamples > 0) {
+            const bool lastStepValid = mStepValid;
+            int32_t xdiff;
+            int32_t ydiff;
+            // check difference assumption here
+            mStepValid = checkedDiff(&xdiff, x, mX[mPos], "x")
+                    & /* bitwise AND to always warn for ydiff, though logical AND is also OK */
+                    checkedDiff(&ydiff, y, mY[mPos], "y");
+
+            // Optimization: do not add a new sample if the line segment would
+            // simply extend the previous line segment.  This extends the useful
+            // history by removing redundant points.
+            if (mSamples > 1 && mStepValid && lastStepValid) {
+                const size_t prev = previousPosition();
+                const int32_t xdiff2 = x - mX[prev];
+                const int32_t ydiff2 = y - mY[prev];
+
+                // if both current step and previous step are valid (non-negative and
+                // less than INT32_MAX for precision greater than 4 bytes)
+                // then the sum of the two steps is valid when the
+                // int32_t difference is non-negative.
+                if (xdiff2 >= 0 && ydiff2 >= 0
+                        && (int64_t)xdiff2 * ydiff == (int64_t)ydiff2 * xdiff) {
+                    // ALOGD("reusing sample! (%u, %u) sample depth %zd", x, y, mSamples);
+                    mX[mPos] = x;
+                    mY[mPos] = y;
+                    return;
+                }
+            }
+        }
+        if (++mPos >= mSize) {
+            mPos = 0;
+        }
+        if (mSamples < mSize) {
+            mExtrapolateTail = false;
+            ++mSamples;
+        } else {
+            // we enable extrapolation beyond the oldest sample
+            // if the sample buffers are completely full and we
+            // no longer know the full history.
+            mExtrapolateTail = true;
+        }
+        mX[mPos] = x;
+        mY[mPos] = y;
+    }
+
+    // clear all samples from the circular array
+    void reset() {
+        // no need to reset mPos, we use a circular buffer.
+        // computed values such as mStepValid are set after a subsequent push().
+        mSamples = 0;
+    }
+
+    // returns true if LinearMap contains at least one sample.
+    bool hasData() const {
+        return mSamples != 0;
+    }
+
+    // find the corresponding X point from a Y point.
+    // See findU for details.
+    __attribute__((no_sanitize("integer")))
+    T findX(T y, FindMethod *method = NULL, double extrapolation = 0.0, T startValue = 0) const {
+        return findU(y, mX, mY, method, extrapolation, startValue);
+    }
+
+    // find the corresponding Y point from a X point.
+    // See findU for details.
+    __attribute__((no_sanitize("integer")))
+    T findY(T x, FindMethod *method = NULL, double extrapolation = 0.0, T startValue = 0) const {
+        return findU(x, mY, mX, method, extrapolation, startValue);
+    }
+
+protected:
+
+    // returns false if the diff is out of int32_t bounds or negative.
+    __attribute__((no_sanitize("integer")))
+    static inline bool checkedDiff(int32_t *diff, T x2, T x1, const char *coord) {
+        if (sizeof(T) >= 8) {
+            const int64_t diff64 = x2 - x1;
+            *diff = (int32_t)diff64;  // intentionally lose precision
+            if (diff64 > INT32_MAX) {
+                ALOGW("LinearMap: %s overflow diff(%lld) from %llu - %llu exceeds INT32_MAX",
+                        coord, (long long)diff64,
+                        (unsigned long long)x2, (unsigned long long)x1);
+                return false;
+            } else if (diff64 < 0) {
+                ALOGW("LinearMap: %s negative diff(%lld) from %llu - %llu",
+                        coord, (long long)diff64,
+                        (unsigned long long)x2, (unsigned long long)x1);
+                return false;
+            }
+            return true;
+        }
+        // for 32 bit integers we cannot detect overflow (it
+        // shows up as a negative difference).
+        *diff = x2 - x1;
+        if (*diff < 0) {
+            ALOGW("LinearMap: %s negative diff(%d) from %u - %u",
+                    coord, *diff, (unsigned)x2, (unsigned)x1);
+            return false;
+        }
+        return true;
+    }
+
+    // Returns the previous position in the mSamples array
+    // going backwards back steps.
+    //
+    // Parameters:
+    //   back: number of backward steps, cannot be less than zero or greater than mSamples.
+    //
+    __attribute__((no_sanitize("integer")))
+    size_t previousPosition(ssize_t back = 1) const {
+        LOG_ALWAYS_FATAL_IF(back < 0 || (size_t)back > mSamples, "Invalid back(%zd)", back);
+        ssize_t position = mPos - back;
+        if (position < 0) position += mSize;
+        return (size_t)position;
+    }
+
+    // A generic implementation of finding the "other coordinate" with coordinates
+    // (u, v) = (x, y) or (u, v) = (y, x).
+    //
+    // Parameters:
+    //   uArray: the u axis samples.
+    //   vArray: the v axis samples.
+    //   method: [out] how the returned value was computed.
+    //   extrapolation: the slope used when extrapolating from the
+    //     first sample value or the last sample value in the history.
+    //     If mExtrapolateTail is set, the slope of the last line segment
+    //     is used if the extrapolation parameter is zero to continue the tail of history.
+    //     At this time, we do not use a different value for forward extrapolation from the
+    //     head of history from backward extrapolation from the tail of history.
+    //     TODO: back extrapolation value could be stored along with mX, mY in history.
+    //   startValue: used only when there are no samples in history. One can detect
+    //     whether there are samples in history by the method hasData().
+    //
+    __attribute__((no_sanitize("integer")))
+    T findU(T v, T *uArray, T *vArray, FindMethod *method,
+            double extrapolation, T startValue) const {
+        if (mSamples == 0) {
+            if (method != NULL) {
+                *method = FIND_METHOD_START_VALUE;
+            }
+            return startValue;  // nothing yet
+        }
+        ssize_t previous = 0;
+        int32_t diff = 0;
+        for (ssize_t i = 0; i < (ssize_t)mSamples; ++i) {
+            size_t current = previousPosition(i);
+
+            // Assumption: even though the type "T" may have precision greater
+            // than 32 bits, the difference between adjacent points is limited to 32 bits.
+            diff = v - vArray[current];
+            if (diff >= 0 ||
+                    (i == (ssize_t)mSamples - 1 && mExtrapolateTail && extrapolation == 0.0)) {
+                // ALOGD("depth = %zd out of %zd", i, limit);
+                if (i == 0) {
+                    if (method != NULL) {
+                        *method = FIND_METHOD_FORWARD_EXTRAPOLATION;
+                    }
+                    return uArray[current] + diff * extrapolation;
+                }
+                // interpolate / extrapolate: For this computation, we
+                // must use differentials here otherwise we have inconsistent
+                // values on modulo wrap. previous is always valid here since
+                // i > 0.  we also perform rounding with the assumption
+                // that uStep, vStep, and diff are non-negative.
+                int32_t uStep = uArray[previous] - uArray[current]; // non-negative
+                int32_t vStep = vArray[previous] - vArray[current]; // positive
+                T u = uStep <= 0 || vStep <= 0 ?  // we do not permit negative ustep or vstep
+                        uArray[current]
+                      : ((int64_t)diff * uStep + (vStep >> 1)) / vStep + uArray[current];
+                // ALOGD("u:%u  diff:%d  uStep:%d  vStep:%d  u_current:%d",
+                //         u, diff, uStep, vStep, uArray[current]);
+                if (method != NULL) {
+                    *method = (diff >= 0) ?
+                            FIND_METHOD_INTERPOLATION : FIND_METHOD_BACKWARD_EXTRAPOLATION;
+                }
+                return u;
+            }
+            previous = current;
+        }
+        // previous is always valid here.
+        if (method != NULL) {
+            *method = FIND_METHOD_BACKWARD_EXTRAPOLATION;
+        }
+        return uArray[previous] + diff * extrapolation;
+    }
+
+private:
+    const size_t    mSize;      // Size of mX and mY arrays (history).
+    size_t          mPos;       // Index in mX and mY of last pushed data;
+                                // (incremented after push) [0, mSize - 1].
+    size_t          mSamples;   // Number of valid samples in the array [0, mSize].
+    bool            mStepValid; // Last sample step was valid (non-negative)
+    bool            mExtrapolateTail; // extrapolate tail using oldest line segment
+    T * const       mX;         // History of X values as a circular array.
+    T * const       mY;         // History of Y values as a circular array.
+};
+
+} // namespace android
+
+#endif // ANDROID_LINEAR_MAP_H
diff --git a/media/libmedia/include/media/MediaCodecBuffer.h b/media/libmedia/include/media/MediaCodecBuffer.h
new file mode 100644
index 0000000..501c00b
--- /dev/null
+++ b/media/libmedia/include/media/MediaCodecBuffer.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CODEC_BUFFER_H_
+
+#define MEDIA_CODEC_BUFFER_H_
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+struct ABuffer;
+struct AMessage;
+class MediaBufferBase;
+
+/**
+ * Buffers used by MediaCodec.
+ */
+class MediaCodecBuffer : public RefBase {
+public:
+    MediaCodecBuffer(const sp<AMessage> &format, const sp<ABuffer> &buffer);
+
+    /**
+     * MediaCodec will release all references to the buffer when it's done using
+     * it, so the destructor should return the buffer to the owner, such as OMX
+     * components, buffer allocators, surfaces, etc.
+     */
+    virtual ~MediaCodecBuffer() = default;
+
+    // ABuffer-like interface
+    uint8_t *base();
+    uint8_t *data();
+    size_t capacity() const;
+    size_t size() const;
+    size_t offset() const;
+    // Default implementation calls ABuffer::setRange() and returns OK.
+    virtual status_t setRange(size_t offset, size_t size);
+    // TODO: These can be removed if we finish replacing all MediaBuffer's.
+    MediaBufferBase *getMediaBufferBase();
+    void setMediaBufferBase(MediaBufferBase *mediaBuffer);
+
+    // TODO: Specify each field for meta/format.
+    sp<AMessage> meta();
+    sp<AMessage> format();
+
+    void setFormat(const sp<AMessage> &format);
+
+private:
+    MediaCodecBuffer() = delete;
+
+    const sp<AMessage> mMeta;
+    sp<AMessage> mFormat;
+    const sp<ABuffer> mBuffer;
+    MediaBufferBase *mMediaBufferBase;
+};
+
+}  // namespace android
+
+#endif  // MEDIA_CODEC_BUFFER_H_
diff --git a/media/libmedia/include/media/MediaCodecInfo.h b/media/libmedia/include/media/MediaCodecInfo.h
new file mode 100644
index 0000000..6b50f22
--- /dev/null
+++ b/media/libmedia/include/media/MediaCodecInfo.h
@@ -0,0 +1,147 @@
+/*
+ * Copyright 2014, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CODEC_INFO_H_
+
+#define MEDIA_CODEC_INFO_H_
+
+#include <binder/Parcel.h>
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/foundation/AString.h>
+
+#include <sys/types.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/RefBase.h>
+#include <utils/Vector.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+struct AMessage;
+class Parcel;
+
+typedef KeyedVector<AString, AString> CodecSettings;
+
+struct MediaCodecInfo : public RefBase {
+    struct ProfileLevel {
+        uint32_t mProfile;
+        uint32_t mLevel;
+    };
+
+    struct Capabilities : public RefBase {
+        enum {
+            // decoder flags
+            kFlagSupportsAdaptivePlayback = 1 << 0,
+            kFlagSupportsSecurePlayback = 1 << 1,
+            kFlagSupportsTunneledPlayback = 1 << 2,
+
+            // encoder flags
+            kFlagSupportsIntraRefresh = 1 << 0,
+
+        };
+
+        void getSupportedProfileLevels(Vector<ProfileLevel> *profileLevels) const;
+        void getSupportedColorFormats(Vector<uint32_t> *colorFormats) const;
+        uint32_t getFlags() const;
+        const sp<AMessage> getDetails() const;
+
+    protected:
+        Vector<ProfileLevel> mProfileLevels;
+        Vector<uint32_t> mColorFormats;
+        uint32_t mFlags;
+        sp<AMessage> mDetails;
+
+        Capabilities();
+
+    private:
+        // read object from parcel even if object creation fails
+        static sp<Capabilities> FromParcel(const Parcel &parcel);
+        status_t writeToParcel(Parcel *parcel) const;
+
+        DISALLOW_EVIL_CONSTRUCTORS(Capabilities);
+
+        friend struct MediaCodecInfo;
+    };
+
+    // Use a subclass to allow setting fields on construction without allowing
+    // to do the same throughout the framework.
+    struct CapabilitiesBuilder : public Capabilities {
+        void addProfileLevel(uint32_t profile, uint32_t level);
+        void addColorFormat(uint32_t format);
+        void addFlags(uint32_t flags);
+    };
+
+    bool isEncoder() const;
+    bool hasQuirk(const char *name) const;
+    void getSupportedMimes(Vector<AString> *mimes) const;
+    const sp<Capabilities> getCapabilitiesFor(const char *mime) const;
+    const char *getCodecName() const;
+
+    /**
+     * Serialization over Binder
+     */
+    static sp<MediaCodecInfo> FromParcel(const Parcel &parcel);
+    status_t writeToParcel(Parcel *parcel) const;
+
+private:
+    // variable set only in constructor - these are accessed by MediaCodecList
+    // to avoid duplication of same variables
+    AString mName;
+    bool mIsEncoder;
+    bool mHasSoleMime; // was initialized with mime
+
+    Vector<AString> mQuirks;
+    KeyedVector<AString, sp<Capabilities> > mCaps;
+
+    sp<Capabilities> mCurrentCaps; // currently initalized capabilities
+
+    ssize_t getCapabilityIndex(const char *mime) const;
+
+    /* Methods used by MediaCodecList to construct the info
+     * object from XML.
+     *
+     * After info object is created:
+     * - additional quirks can be added
+     * - additional mimes can be added
+     *   - OMX codec capabilities can be set for the current mime-type
+     *   - a capability detail can be set for the current mime-type
+     *   - a feature can be set for the current mime-type
+     *   - info object can be completed when parsing of a mime-type is done
+     */
+    MediaCodecInfo(AString name, bool encoder, const char *mime);
+    void addQuirk(const char *name);
+    status_t addMime(const char *mime);
+    status_t updateMime(const char *mime);
+
+    status_t initializeCapabilities(const sp<Capabilities> &caps);
+    void addDetail(const AString &key, const AString &value);
+    void addFeature(const AString &key, int32_t value);
+    void addFeature(const AString &key, const char *value);
+    void removeMime(const char *mime);
+    void complete();
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaCodecInfo);
+
+    friend struct MediaCodecList;
+    friend class MediaCodecListOverridesTest;
+};
+
+}  // namespace android
+
+#endif  // MEDIA_CODEC_INFO_H_
+
+
diff --git a/media/libmedia/include/media/MediaDefs.h b/media/libmedia/include/media/MediaDefs.h
new file mode 100644
index 0000000..7f17013
--- /dev/null
+++ b/media/libmedia/include/media/MediaDefs.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_DEFS_H_
+
+#define MEDIA_DEFS_H_
+
+namespace android {
+
+extern const char *MEDIA_MIMETYPE_IMAGE_JPEG;
+
+extern const char *MEDIA_MIMETYPE_VIDEO_VP8;
+extern const char *MEDIA_MIMETYPE_VIDEO_VP9;
+extern const char *MEDIA_MIMETYPE_VIDEO_AVC;
+extern const char *MEDIA_MIMETYPE_VIDEO_HEVC;
+extern const char *MEDIA_MIMETYPE_VIDEO_MPEG4;
+extern const char *MEDIA_MIMETYPE_VIDEO_H263;
+extern const char *MEDIA_MIMETYPE_VIDEO_MPEG2;
+extern const char *MEDIA_MIMETYPE_VIDEO_RAW;
+extern const char *MEDIA_MIMETYPE_VIDEO_DOLBY_VISION;
+extern const char *MEDIA_MIMETYPE_VIDEO_SCRAMBLED;
+
+extern const char *MEDIA_MIMETYPE_AUDIO_AMR_NB;
+extern const char *MEDIA_MIMETYPE_AUDIO_AMR_WB;
+extern const char *MEDIA_MIMETYPE_AUDIO_MPEG;           // layer III
+extern const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I;
+extern const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II;
+extern const char *MEDIA_MIMETYPE_AUDIO_MIDI;
+extern const char *MEDIA_MIMETYPE_AUDIO_AAC;
+extern const char *MEDIA_MIMETYPE_AUDIO_QCELP;
+extern const char *MEDIA_MIMETYPE_AUDIO_VORBIS;
+extern const char *MEDIA_MIMETYPE_AUDIO_OPUS;
+extern const char *MEDIA_MIMETYPE_AUDIO_G711_ALAW;
+extern const char *MEDIA_MIMETYPE_AUDIO_G711_MLAW;
+extern const char *MEDIA_MIMETYPE_AUDIO_RAW;
+extern const char *MEDIA_MIMETYPE_AUDIO_FLAC;
+extern const char *MEDIA_MIMETYPE_AUDIO_AAC_ADTS;
+extern const char *MEDIA_MIMETYPE_AUDIO_MSGSM;
+extern const char *MEDIA_MIMETYPE_AUDIO_AC3;
+extern const char *MEDIA_MIMETYPE_AUDIO_EAC3;
+extern const char *MEDIA_MIMETYPE_AUDIO_SCRAMBLED;
+
+extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG4;
+extern const char *MEDIA_MIMETYPE_CONTAINER_WAV;
+extern const char *MEDIA_MIMETYPE_CONTAINER_OGG;
+extern const char *MEDIA_MIMETYPE_CONTAINER_MATROSKA;
+extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG2TS;
+extern const char *MEDIA_MIMETYPE_CONTAINER_AVI;
+extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG2PS;
+
+extern const char *MEDIA_MIMETYPE_TEXT_3GPP;
+extern const char *MEDIA_MIMETYPE_TEXT_SUBRIP;
+extern const char *MEDIA_MIMETYPE_TEXT_VTT;
+extern const char *MEDIA_MIMETYPE_TEXT_CEA_608;
+extern const char *MEDIA_MIMETYPE_TEXT_CEA_708;
+extern const char *MEDIA_MIMETYPE_DATA_TIMED_ID3;
+
+// These are values exported to JAVA API that need to be in sync with
+// frameworks/base/media/java/android/media/AudioFormat.java. Unfortunately,
+// they are not defined in frameworks/av, so defining them here.
+enum AudioEncoding {
+    kAudioEncodingPcm16bit = 2,
+    kAudioEncodingPcm8bit = 3,
+    kAudioEncodingPcmFloat = 4,
+};
+
+}  // namespace android
+
+#endif  // MEDIA_DEFS_H_
diff --git a/media/libmedia/include/media/MediaMetadataRetrieverInterface.h b/media/libmedia/include/media/MediaMetadataRetrieverInterface.h
new file mode 100644
index 0000000..a5e1350
--- /dev/null
+++ b/media/libmedia/include/media/MediaMetadataRetrieverInterface.h
@@ -0,0 +1,64 @@
+/*
+**
+** Copyright (C) 2008 The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#ifndef ANDROID_MEDIAMETADATARETRIEVERINTERFACE_H
+#define ANDROID_MEDIAMETADATARETRIEVERINTERFACE_H
+
+#include <utils/RefBase.h>
+#include <media/mediametadataretriever.h>
+#include <media/mediascanner.h>
+#include <private/media/VideoFrame.h>
+
+namespace android {
+
+class DataSource;
+struct IMediaHTTPService;
+
+// Abstract base class
+class MediaMetadataRetrieverBase : public RefBase
+{
+public:
+                        MediaMetadataRetrieverBase() {}
+    virtual             ~MediaMetadataRetrieverBase() {}
+
+    virtual status_t    setDataSource(
+            const sp<IMediaHTTPService> &httpService,
+            const char *url,
+            const KeyedVector<String8, String8> *headers = NULL) = 0;
+
+    virtual status_t    setDataSource(int fd, int64_t offset, int64_t length) = 0;
+    virtual status_t setDataSource(const sp<DataSource>& source) = 0;
+    virtual VideoFrame* getFrameAtTime(int64_t timeUs, int option) = 0;
+    virtual MediaAlbumArt* extractAlbumArt() = 0;
+    virtual const char* extractMetadata(int keyCode) = 0;
+};
+
+// MediaMetadataRetrieverInterface
+class MediaMetadataRetrieverInterface : public MediaMetadataRetrieverBase
+{
+public:
+    MediaMetadataRetrieverInterface() {}
+
+    virtual             ~MediaMetadataRetrieverInterface() {}
+    virtual VideoFrame* getFrameAtTime(int64_t /*timeUs*/, int /*option*/) { return NULL; }
+    virtual MediaAlbumArt* extractAlbumArt() { return NULL; }
+    virtual const char* extractMetadata(int /*keyCode*/) { return NULL; }
+};
+
+}; // namespace android
+
+#endif // ANDROID_MEDIAMETADATARETRIEVERINTERFACE_H
diff --git a/media/libmedia/include/media/MediaProfiles.h b/media/libmedia/include/media/MediaProfiles.h
new file mode 100644
index 0000000..6975581
--- /dev/null
+++ b/media/libmedia/include/media/MediaProfiles.h
@@ -0,0 +1,481 @@
+/*
+ **
+ ** Copyright 2010, The Android Open Source Project.
+ **
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ **
+ **     http://www.apache.org/licenses/LICENSE-2.0
+ **
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ ** limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIAPROFILES_H
+#define ANDROID_MEDIAPROFILES_H
+
+#include <utils/threads.h>
+#include <media/mediarecorder.h>
+
+namespace android {
+
+enum camcorder_quality {
+    CAMCORDER_QUALITY_LIST_START = 0,
+    CAMCORDER_QUALITY_LOW  = 0,
+    CAMCORDER_QUALITY_HIGH = 1,
+    CAMCORDER_QUALITY_QCIF = 2,
+    CAMCORDER_QUALITY_CIF = 3,
+    CAMCORDER_QUALITY_480P = 4,
+    CAMCORDER_QUALITY_720P = 5,
+    CAMCORDER_QUALITY_1080P = 6,
+    CAMCORDER_QUALITY_QVGA = 7,
+    CAMCORDER_QUALITY_2160P = 8,
+    CAMCORDER_QUALITY_LIST_END = 8,
+
+    CAMCORDER_QUALITY_TIME_LAPSE_LIST_START = 1000,
+    CAMCORDER_QUALITY_TIME_LAPSE_LOW  = 1000,
+    CAMCORDER_QUALITY_TIME_LAPSE_HIGH = 1001,
+    CAMCORDER_QUALITY_TIME_LAPSE_QCIF = 1002,
+    CAMCORDER_QUALITY_TIME_LAPSE_CIF = 1003,
+    CAMCORDER_QUALITY_TIME_LAPSE_480P = 1004,
+    CAMCORDER_QUALITY_TIME_LAPSE_720P = 1005,
+    CAMCORDER_QUALITY_TIME_LAPSE_1080P = 1006,
+    CAMCORDER_QUALITY_TIME_LAPSE_QVGA = 1007,
+    CAMCORDER_QUALITY_TIME_LAPSE_2160P = 1008,
+    CAMCORDER_QUALITY_TIME_LAPSE_LIST_END = 1008,
+
+    CAMCORDER_QUALITY_HIGH_SPEED_LIST_START = 2000,
+    CAMCORDER_QUALITY_HIGH_SPEED_LOW  = 2000,
+    CAMCORDER_QUALITY_HIGH_SPEED_HIGH = 2001,
+    CAMCORDER_QUALITY_HIGH_SPEED_480P = 2002,
+    CAMCORDER_QUALITY_HIGH_SPEED_720P = 2003,
+    CAMCORDER_QUALITY_HIGH_SPEED_1080P = 2004,
+    CAMCORDER_QUALITY_HIGH_SPEED_2160P = 2005,
+    CAMCORDER_QUALITY_HIGH_SPEED_LIST_END = 2005,
+};
+
+enum video_decoder {
+    VIDEO_DECODER_WMV,
+};
+
+enum audio_decoder {
+    AUDIO_DECODER_WMA,
+};
+
+
+class MediaProfiles
+{
+public:
+
+    /*
+     * If property media.settings.xml is not set:
+     *
+     * getInstance() will search through paths listed in xmlFiles.
+     * The search goes through members of xmlFiles in the order that they are
+     * defined, so files at lower indices have higher priority than those at
+     * higher indices.
+     *
+     * TODO: Add runtime validation of xml files. A search should be considered
+     * successful only when validation is successful.
+     */
+    static constexpr char const * const xmlFiles[] = {
+            "vendor/etc/media_profiles_V1_0.xml",
+            "system/etc/media_profiles.xml"
+            };
+
+    /**
+     * Returns the singleton instance for subsequence queries or NULL if error.
+     *
+     * If property media.settings.xml is set, getInstance() will attempt to read
+     * from file path in media.settings.xml. Otherwise, getInstance() will
+     * search through the list xmlFiles as described above.
+     *
+     * If the search is unsuccessful, the default instance will be created
+     * instead.
+     *
+     * TODO: After validation is added, getInstance() should handle validation
+     * failure properly.
+     */
+    static MediaProfiles* getInstance();
+
+    /**
+     * Returns the value for the given param name for the given camera at
+     * the given quality level, or -1 if error.
+     *
+     * Supported param name are:
+     * duration - the recording duration.
+     * file.format - output file format. see mediarecorder.h for details
+     * vid.codec - video encoder. see mediarecorder.h for details.
+     * aud.codec - audio encoder. see mediarecorder.h for details.
+     * vid.width - video frame width
+     * vid.height - video frame height
+     * vid.fps - video frame rate
+     * vid.bps - video bit rate
+     * aud.bps - audio bit rate
+     * aud.hz - audio sample rate
+     * aud.ch - number of audio channels
+     */
+    int getCamcorderProfileParamByName(const char *name, int cameraId,
+                                       camcorder_quality quality) const;
+
+    /**
+     * Returns true if a profile for the given camera at the given quality exists,
+     * or false if not.
+     */
+    bool hasCamcorderProfile(int cameraId, camcorder_quality quality) const;
+
+    /**
+     * Returns the output file formats supported.
+     */
+    Vector<output_format> getOutputFileFormats() const;
+
+    /**
+     * Returns the video encoders supported.
+     */
+    Vector<video_encoder> getVideoEncoders() const;
+
+    /**
+     * Returns the value for the given param name for the given video encoder
+     * returned from getVideoEncoderByIndex or -1 if error.
+     *
+     * Supported param name are:
+     * enc.vid.width.min - min video frame width
+     * enc.vid.width.max - max video frame width
+     * enc.vid.height.min - min video frame height
+     * enc.vid.height.max - max video frame height
+     * enc.vid.bps.min - min bit rate in bits per second
+     * enc.vid.bps.max - max bit rate in bits per second
+     * enc.vid.fps.min - min frame rate in frames per second
+     * enc.vid.fps.max - max frame rate in frames per second
+     */
+    int getVideoEncoderParamByName(const char *name, video_encoder codec) const;
+
+    /**
+     * Returns the audio encoders supported.
+     */
+    Vector<audio_encoder> getAudioEncoders() const;
+
+    /**
+     * Returns the value for the given param name for the given audio encoder
+     * returned from getAudioEncoderByIndex or -1 if error.
+     *
+     * Supported param name are:
+     * enc.aud.ch.min - min number of channels
+     * enc.aud.ch.max - max number of channels
+     * enc.aud.bps.min - min bit rate in bits per second
+     * enc.aud.bps.max - max bit rate in bits per second
+     * enc.aud.hz.min - min sample rate in samples per second
+     * enc.aud.hz.max - max sample rate in samples per second
+     */
+    int getAudioEncoderParamByName(const char *name, audio_encoder codec) const;
+
+    /**
+      * Returns the video decoders supported.
+      */
+    Vector<video_decoder> getVideoDecoders() const;
+
+     /**
+      * Returns the audio decoders supported.
+      */
+    Vector<audio_decoder> getAudioDecoders() const;
+
+    /**
+     * Returns the number of image encoding quality levels supported.
+     */
+    Vector<int> getImageEncodingQualityLevels(int cameraId) const;
+
+    /**
+     * Returns the start time offset (in ms) for the given camera Id.
+     * If the given camera Id does not exist, -1 will be returned.
+     */
+    int getStartTimeOffsetMs(int cameraId) const;
+
+private:
+    enum {
+        // Camcorder profiles (high/low) and timelapse profiles (high/low)
+        kNumRequiredProfiles = 4,
+    };
+
+    MediaProfiles& operator=(const MediaProfiles&);  // Don't call me
+    MediaProfiles(const MediaProfiles&);             // Don't call me
+    MediaProfiles() {}                               // Dummy default constructor
+    ~MediaProfiles();                                // Don't delete me
+
+    struct VideoCodec {
+        VideoCodec(video_encoder codec, int bitRate, int frameWidth, int frameHeight, int frameRate)
+            : mCodec(codec),
+              mBitRate(bitRate),
+              mFrameWidth(frameWidth),
+              mFrameHeight(frameHeight),
+              mFrameRate(frameRate) {}
+
+        VideoCodec(const VideoCodec& copy) {
+            mCodec = copy.mCodec;
+            mBitRate = copy.mBitRate;
+            mFrameWidth = copy.mFrameWidth;
+            mFrameHeight = copy.mFrameHeight;
+            mFrameRate = copy.mFrameRate;
+        }
+
+        ~VideoCodec() {}
+
+        video_encoder mCodec;
+        int mBitRate;
+        int mFrameWidth;
+        int mFrameHeight;
+        int mFrameRate;
+    };
+
+    struct AudioCodec {
+        AudioCodec(audio_encoder codec, int bitRate, int sampleRate, int channels)
+            : mCodec(codec),
+              mBitRate(bitRate),
+              mSampleRate(sampleRate),
+              mChannels(channels) {}
+
+        AudioCodec(const AudioCodec& copy) {
+            mCodec = copy.mCodec;
+            mBitRate = copy.mBitRate;
+            mSampleRate = copy.mSampleRate;
+            mChannels = copy.mChannels;
+        }
+
+        ~AudioCodec() {}
+
+        audio_encoder mCodec;
+        int mBitRate;
+        int mSampleRate;
+        int mChannels;
+    };
+
+    struct CamcorderProfile {
+        CamcorderProfile()
+            : mCameraId(0),
+              mFileFormat(OUTPUT_FORMAT_THREE_GPP),
+              mQuality(CAMCORDER_QUALITY_HIGH),
+              mDuration(0),
+              mVideoCodec(0),
+              mAudioCodec(0) {}
+
+        CamcorderProfile(const CamcorderProfile& copy) {
+            mCameraId = copy.mCameraId;
+            mFileFormat = copy.mFileFormat;
+            mQuality = copy.mQuality;
+            mDuration = copy.mDuration;
+            mVideoCodec = new VideoCodec(*copy.mVideoCodec);
+            mAudioCodec = new AudioCodec(*copy.mAudioCodec);
+        }
+
+        ~CamcorderProfile() {
+            delete mVideoCodec;
+            delete mAudioCodec;
+        }
+
+        int mCameraId;
+        output_format mFileFormat;
+        camcorder_quality mQuality;
+        int mDuration;
+        VideoCodec *mVideoCodec;
+        AudioCodec *mAudioCodec;
+    };
+
+    struct VideoEncoderCap {
+        // Ugly constructor
+        VideoEncoderCap(video_encoder codec,
+                        int minBitRate, int maxBitRate,
+                        int minFrameWidth, int maxFrameWidth,
+                        int minFrameHeight, int maxFrameHeight,
+                        int minFrameRate, int maxFrameRate)
+            : mCodec(codec),
+              mMinBitRate(minBitRate), mMaxBitRate(maxBitRate),
+              mMinFrameWidth(minFrameWidth), mMaxFrameWidth(maxFrameWidth),
+              mMinFrameHeight(minFrameHeight), mMaxFrameHeight(maxFrameHeight),
+              mMinFrameRate(minFrameRate), mMaxFrameRate(maxFrameRate) {}
+
+         ~VideoEncoderCap() {}
+
+        video_encoder mCodec;
+        int mMinBitRate, mMaxBitRate;
+        int mMinFrameWidth, mMaxFrameWidth;
+        int mMinFrameHeight, mMaxFrameHeight;
+        int mMinFrameRate, mMaxFrameRate;
+    };
+
+    struct AudioEncoderCap {
+        // Ugly constructor
+        AudioEncoderCap(audio_encoder codec,
+                        int minBitRate, int maxBitRate,
+                        int minSampleRate, int maxSampleRate,
+                        int minChannels, int maxChannels)
+            : mCodec(codec),
+              mMinBitRate(minBitRate), mMaxBitRate(maxBitRate),
+              mMinSampleRate(minSampleRate), mMaxSampleRate(maxSampleRate),
+              mMinChannels(minChannels), mMaxChannels(maxChannels) {}
+
+        ~AudioEncoderCap() {}
+
+        audio_encoder mCodec;
+        int mMinBitRate, mMaxBitRate;
+        int mMinSampleRate, mMaxSampleRate;
+        int mMinChannels, mMaxChannels;
+    };
+
+    struct VideoDecoderCap {
+        VideoDecoderCap(video_decoder codec): mCodec(codec) {}
+        ~VideoDecoderCap() {}
+
+        video_decoder mCodec;
+    };
+
+    struct AudioDecoderCap {
+        AudioDecoderCap(audio_decoder codec): mCodec(codec) {}
+        ~AudioDecoderCap() {}
+
+        audio_decoder mCodec;
+    };
+
+    struct NameToTagMap {
+        const char* name;
+        int tag;
+    };
+
+    struct ImageEncodingQualityLevels {
+        int mCameraId;
+        Vector<int> mLevels;
+    };
+
+    int getCamcorderProfileIndex(int cameraId, camcorder_quality quality) const;
+    void initRequiredProfileRefs(const Vector<int>& cameraIds);
+    int getRequiredProfileRefIndex(int cameraId);
+
+    // Debug
+    static void logVideoCodec(const VideoCodec& codec);
+    static void logAudioCodec(const AudioCodec& codec);
+    static void logVideoEncoderCap(const VideoEncoderCap& cap);
+    static void logAudioEncoderCap(const AudioEncoderCap& cap);
+    static void logVideoDecoderCap(const VideoDecoderCap& cap);
+    static void logAudioDecoderCap(const AudioDecoderCap& cap);
+
+    // Returns true if xmlFile exists.
+    // TODO: Add runtime validation.
+    static bool checkXmlFile(const char* xmlFile);
+
+    // If the xml configuration file does exist, use the settings
+    // from the xml
+    static MediaProfiles* createInstanceFromXmlFile(const char *xml);
+    static output_format createEncoderOutputFileFormat(const char **atts);
+    static VideoCodec* createVideoCodec(const char **atts, MediaProfiles *profiles);
+    static AudioCodec* createAudioCodec(const char **atts, MediaProfiles *profiles);
+    static AudioDecoderCap* createAudioDecoderCap(const char **atts);
+    static VideoDecoderCap* createVideoDecoderCap(const char **atts);
+    static VideoEncoderCap* createVideoEncoderCap(const char **atts);
+    static AudioEncoderCap* createAudioEncoderCap(const char **atts);
+
+    static CamcorderProfile* createCamcorderProfile(
+                int cameraId, const char **atts, Vector<int>& cameraIds);
+
+    static int getCameraId(const char **atts);
+
+    void addStartTimeOffset(int cameraId, const char **atts);
+
+    ImageEncodingQualityLevels* findImageEncodingQualityLevels(int cameraId) const;
+    void addImageEncodingQualityLevel(int cameraId, const char** atts);
+
+    // Customized element tag handler for parsing the xml configuration file.
+    static void startElementHandler(void *userData, const char *name, const char **atts);
+
+    // If the xml configuration file does not exist, use hard-coded values
+    static MediaProfiles* createDefaultInstance();
+
+    static CamcorderProfile *createDefaultCamcorderQcifProfile(camcorder_quality quality);
+    static CamcorderProfile *createDefaultCamcorderCifProfile(camcorder_quality quality);
+    static void createDefaultCamcorderLowProfiles(
+            MediaProfiles::CamcorderProfile **lowProfile,
+            MediaProfiles::CamcorderProfile **lowSpecificProfile);
+    static void createDefaultCamcorderHighProfiles(
+            MediaProfiles::CamcorderProfile **highProfile,
+            MediaProfiles::CamcorderProfile **highSpecificProfile);
+
+    static CamcorderProfile *createDefaultCamcorderTimeLapseQcifProfile(camcorder_quality quality);
+    static CamcorderProfile *createDefaultCamcorderTimeLapse480pProfile(camcorder_quality quality);
+    static void createDefaultCamcorderTimeLapseLowProfiles(
+            MediaProfiles::CamcorderProfile **lowTimeLapseProfile,
+            MediaProfiles::CamcorderProfile **lowSpecificTimeLapseProfile);
+    static void createDefaultCamcorderTimeLapseHighProfiles(
+            MediaProfiles::CamcorderProfile **highTimeLapseProfile,
+            MediaProfiles::CamcorderProfile **highSpecificTimeLapseProfile);
+
+    static void createDefaultCamcorderProfiles(MediaProfiles *profiles);
+    static void createDefaultVideoEncoders(MediaProfiles *profiles);
+    static void createDefaultAudioEncoders(MediaProfiles *profiles);
+    static void createDefaultVideoDecoders(MediaProfiles *profiles);
+    static void createDefaultAudioDecoders(MediaProfiles *profiles);
+    static void createDefaultEncoderOutputFileFormats(MediaProfiles *profiles);
+    static void createDefaultImageEncodingQualityLevels(MediaProfiles *profiles);
+    static void createDefaultImageDecodingMaxMemory(MediaProfiles *profiles);
+
+    static VideoEncoderCap* createDefaultH263VideoEncoderCap();
+    static VideoEncoderCap* createDefaultM4vVideoEncoderCap();
+    static AudioEncoderCap* createDefaultAmrNBEncoderCap();
+
+    static int findTagForName(const NameToTagMap *map, size_t nMappings, const char *name);
+
+    /**
+     * Check on existing profiles with the following criteria:
+     * 1. Low quality profile must have the lowest video
+     *    resolution product (width x height)
+     * 2. High quality profile must have the highest video
+     *    resolution product (width x height)
+     *
+     * and add required low/high quality camcorder/timelapse
+     * profiles if they are not found. This allows to remove
+     * duplicate profile definitions in the media_profiles.xml
+     * file.
+     */
+    void checkAndAddRequiredProfilesIfNecessary();
+
+
+    // Mappings from name (for instance, codec name) to enum value
+    static const NameToTagMap sVideoEncoderNameMap[];
+    static const NameToTagMap sAudioEncoderNameMap[];
+    static const NameToTagMap sFileFormatMap[];
+    static const NameToTagMap sVideoDecoderNameMap[];
+    static const NameToTagMap sAudioDecoderNameMap[];
+    static const NameToTagMap sCamcorderQualityNameMap[];
+
+    static bool sIsInitialized;
+    static MediaProfiles *sInstance;
+    static Mutex sLock;
+    int mCurrentCameraId;
+
+    Vector<CamcorderProfile*> mCamcorderProfiles;
+    Vector<AudioEncoderCap*>  mAudioEncoders;
+    Vector<VideoEncoderCap*>  mVideoEncoders;
+    Vector<AudioDecoderCap*>  mAudioDecoders;
+    Vector<VideoDecoderCap*>  mVideoDecoders;
+    Vector<output_format>     mEncoderOutputFileFormats;
+    Vector<ImageEncodingQualityLevels *>  mImageEncodingQualityLevels;
+    KeyedVector<int, int> mStartTimeOffsets;
+
+    typedef struct {
+        bool mHasRefProfile;      // Refers to an existing profile
+        int  mRefProfileIndex;    // Reference profile index
+        int  mResolutionProduct;  // width x height
+    } RequiredProfileRefInfo;     // Required low and high profiles
+
+    typedef struct {
+        RequiredProfileRefInfo mRefs[kNumRequiredProfiles];
+        int mCameraId;
+    } RequiredProfiles;
+
+    RequiredProfiles *mRequiredProfileRefs;
+    Vector<int>              mCameraIds;
+};
+
+}; // namespace android
+
+#endif // ANDROID_MEDIAPROFILES_H
diff --git a/media/libmedia/include/media/MediaRecorderBase.h b/media/libmedia/include/media/MediaRecorderBase.h
new file mode 100644
index 0000000..0b0f916
--- /dev/null
+++ b/media/libmedia/include/media/MediaRecorderBase.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_RECORDER_BASE_H_
+
+#define MEDIA_RECORDER_BASE_H_
+
+#include <media/mediarecorder.h>
+
+#include <system/audio.h>
+
+namespace android {
+
+class ICameraRecordingProxy;
+class IGraphicBufferProducer;
+struct PersistentSurface;
+
+struct MediaRecorderBase {
+    MediaRecorderBase(const String16 &opPackageName)
+        : mOpPackageName(opPackageName) {}
+    virtual ~MediaRecorderBase() {}
+
+    virtual status_t init() = 0;
+    virtual status_t setAudioSource(audio_source_t as) = 0;
+    virtual status_t setVideoSource(video_source vs) = 0;
+    virtual status_t setOutputFormat(output_format of) = 0;
+    virtual status_t setAudioEncoder(audio_encoder ae) = 0;
+    virtual status_t setVideoEncoder(video_encoder ve) = 0;
+    virtual status_t setVideoSize(int width, int height) = 0;
+    virtual status_t setVideoFrameRate(int frames_per_second) = 0;
+    virtual status_t setCamera(const sp<hardware::ICamera>& camera,
+                               const sp<ICameraRecordingProxy>& proxy) = 0;
+    virtual status_t setPreviewSurface(const sp<IGraphicBufferProducer>& surface) = 0;
+    virtual status_t setOutputFile(int fd) = 0;
+    virtual status_t setNextOutputFile(int fd) {return INVALID_OPERATION;}
+    virtual status_t setOutputFileAuxiliary(int /*fd*/) {return INVALID_OPERATION;}
+    virtual status_t setParameters(const String8& params) = 0;
+    virtual status_t setListener(const sp<IMediaRecorderClient>& listener) = 0;
+    virtual status_t setClientName(const String16& clientName) = 0;
+    virtual status_t prepare() = 0;
+    virtual status_t start() = 0;
+    virtual status_t stop() = 0;
+    virtual status_t pause() = 0;
+    virtual status_t resume() = 0;
+    virtual status_t close() = 0;
+    virtual status_t reset() = 0;
+    virtual status_t getMaxAmplitude(int *max) = 0;
+    virtual status_t getMetrics(Parcel *reply) = 0;
+    virtual status_t dump(int fd, const Vector<String16>& args) const = 0;
+    virtual status_t setInputSurface(const sp<PersistentSurface>& surface) = 0;
+    virtual sp<IGraphicBufferProducer> querySurfaceMediaSource() const = 0;
+
+
+protected:
+    String16 mOpPackageName;
+
+private:
+    MediaRecorderBase(const MediaRecorderBase &);
+    MediaRecorderBase &operator=(const MediaRecorderBase &);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_RECORDER_BASE_H_
diff --git a/include/media/MediaResource.h b/media/libmedia/include/media/MediaResource.h
similarity index 100%
rename from include/media/MediaResource.h
rename to media/libmedia/include/media/MediaResource.h
diff --git a/include/media/MediaResourcePolicy.h b/media/libmedia/include/media/MediaResourcePolicy.h
similarity index 100%
rename from include/media/MediaResourcePolicy.h
rename to media/libmedia/include/media/MediaResourcePolicy.h
diff --git a/include/media/MemoryLeakTrackUtil.h b/media/libmedia/include/media/MemoryLeakTrackUtil.h
similarity index 100%
rename from include/media/MemoryLeakTrackUtil.h
rename to media/libmedia/include/media/MemoryLeakTrackUtil.h
diff --git a/include/media/Metadata.h b/media/libmedia/include/media/Metadata.h
similarity index 100%
rename from include/media/Metadata.h
rename to media/libmedia/include/media/Metadata.h
diff --git a/media/libmedia/include/media/MidiDeviceInfo.h b/media/libmedia/include/media/MidiDeviceInfo.h
new file mode 100644
index 0000000..5b4a241
--- /dev/null
+++ b/media/libmedia/include/media/MidiDeviceInfo.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIA_MIDI_DEVICE_INFO_H
+#define ANDROID_MEDIA_MIDI_DEVICE_INFO_H
+
+#include <binder/Parcelable.h>
+#include <binder/PersistableBundle.h>
+#include <utils/String16.h>
+#include <utils/Vector.h>
+
+namespace android {
+namespace media {
+namespace midi {
+
+class MidiDeviceInfo : public Parcelable {
+public:
+    MidiDeviceInfo() = default;
+    virtual ~MidiDeviceInfo() = default;
+    MidiDeviceInfo(const MidiDeviceInfo& midiDeviceInfo) = default;
+
+    status_t writeToParcel(Parcel* parcel) const override;
+    status_t readFromParcel(const Parcel* parcel) override;
+
+    int getType() const { return mType; }
+    int getUid() const { return mId; }
+    bool isPrivate() const { return mIsPrivate; }
+    const Vector<String16>& getInputPortNames() const { return mInputPortNames; }
+    const Vector<String16>&  getOutputPortNames() const { return mOutputPortNames; }
+    String16 getProperty(const char* propertyName);
+
+    // The constants need to be kept in sync with MidiDeviceInfo.java
+    enum {
+        TYPE_USB = 1,
+        TYPE_VIRTUAL = 2,
+        TYPE_BLUETOOTH = 3,
+    };
+    static const char* const PROPERTY_NAME;
+    static const char* const PROPERTY_MANUFACTURER;
+    static const char* const PROPERTY_PRODUCT;
+    static const char* const PROPERTY_VERSION;
+    static const char* const PROPERTY_SERIAL_NUMBER;
+    static const char* const PROPERTY_ALSA_CARD;
+    static const char* const PROPERTY_ALSA_DEVICE;
+
+    friend bool operator==(const MidiDeviceInfo& lhs, const MidiDeviceInfo& rhs);
+    friend bool operator!=(const MidiDeviceInfo& lhs, const MidiDeviceInfo& rhs) {
+        return !(lhs == rhs);
+    }
+
+private:
+    status_t readStringVector(
+            const Parcel* parcel, Vector<String16> *vectorPtr, size_t defaultLength);
+    status_t writeStringVector(Parcel* parcel, const Vector<String16>& vector) const;
+
+    int32_t mType;
+    int32_t mId;
+    Vector<String16> mInputPortNames;
+    Vector<String16> mOutputPortNames;
+    os::PersistableBundle mProperties;
+    bool mIsPrivate;
+};
+
+}  // namespace midi
+}  // namespace media
+}  // namespace android
+
+#endif  // ANDROID_MEDIA_MIDI_DEVICE_INFO_H
diff --git a/include/media/MidiIoWrapper.h b/media/libmedia/include/media/MidiIoWrapper.h
similarity index 100%
rename from include/media/MidiIoWrapper.h
rename to media/libmedia/include/media/MidiIoWrapper.h
diff --git a/include/media/Modulo.h b/media/libmedia/include/media/Modulo.h
similarity index 100%
rename from include/media/Modulo.h
rename to media/libmedia/include/media/Modulo.h
diff --git a/media/libmedia/include/media/OMXBuffer.h b/media/libmedia/include/media/OMXBuffer.h
new file mode 100644
index 0000000..6f79182
--- /dev/null
+++ b/media/libmedia/include/media/OMXBuffer.h
@@ -0,0 +1,149 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _OMXBUFFER_H_
+#define _OMXBUFFER_H_
+
+#include <cutils/native_handle.h>
+#include <media/IOMX.h>
+#include <system/window.h>
+#include <utils/StrongPointer.h>
+#include <hidl/HidlSupport.h>
+
+namespace android {
+
+class OMXBuffer;
+
+// This is needed temporarily for the OMX HIDL transition.
+namespace hardware { namespace media { namespace omx {
+namespace V1_0 {
+    struct CodecBuffer;
+namespace implementation {
+    inline bool wrapAs(::android::hardware::media::omx::V1_0::CodecBuffer* t,
+            ::android::OMXBuffer const& l);
+    inline bool convertTo(::android::OMXBuffer* l,
+            ::android::hardware::media::omx::V1_0::CodecBuffer const& t);
+}
+namespace utils {
+    inline bool wrapAs(::android::hardware::media::omx::V1_0::CodecBuffer* t,
+            ::android::OMXBuffer const& l);
+    inline bool convertTo(::android::OMXBuffer* l,
+            ::android::hardware::media::omx::V1_0::CodecBuffer const& t);
+}
+}}}}
+
+class GraphicBuffer;
+class IMemory;
+class MediaCodecBuffer;
+class NativeHandle;
+struct OMXNodeInstance;
+using hardware::hidl_memory;
+
+// TODO: After complete HIDL transition, this class would be replaced by
+// CodecBuffer.
+class OMXBuffer {
+public:
+    // sPreset is used in places where we are referring to a pre-registered
+    // buffer on a port. It has type kBufferTypePreset and mRangeLength of 0.
+    static OMXBuffer sPreset;
+
+    // Default constructor, constructs a buffer of type kBufferTypeInvalid.
+    OMXBuffer();
+
+    // Constructs a buffer of type kBufferTypePreset with mRangeOffset set to
+    // |codecBuffer|'s offset and mRangeLength set to |codecBuffer|'s size (or 0
+    // if |codecBuffer| is NULL).
+    OMXBuffer(const sp<MediaCodecBuffer> &codecBuffer);
+
+    // Constructs a buffer of type kBufferTypePreset with specified mRangeOffset
+    // and mRangeLength.
+    OMXBuffer(OMX_U32 rangeOffset, OMX_U32 rangeLength);
+
+    // Constructs a buffer of type kBufferTypeSharedMem.
+    OMXBuffer(const sp<IMemory> &mem);
+
+    // Constructs a buffer of type kBufferTypeANWBuffer.
+    OMXBuffer(const sp<GraphicBuffer> &gbuf);
+
+    // Constructs a buffer of type kBufferTypeNativeHandle.
+    OMXBuffer(const sp<NativeHandle> &handle);
+
+    // Constructs a buffer of type kBufferTypeHidlMemory.
+    OMXBuffer(const hidl_memory &hidlMemory);
+
+    // Parcelling/Un-parcelling.
+    status_t writeToParcel(Parcel *parcel) const;
+    status_t readFromParcel(const Parcel *parcel);
+
+    ~OMXBuffer();
+
+private:
+    friend struct OMXNodeInstance;
+
+    // This is needed temporarily for OMX HIDL transition.
+    friend inline bool (::android::hardware::media::omx::V1_0::implementation::
+            wrapAs)(::android::hardware::media::omx::V1_0::CodecBuffer* t,
+            OMXBuffer const& l);
+    friend inline bool (::android::hardware::media::omx::V1_0::implementation::
+            convertTo)(OMXBuffer* l,
+            ::android::hardware::media::omx::V1_0::CodecBuffer const& t);
+    friend inline bool (::android::hardware::media::omx::V1_0::utils::
+            wrapAs)(::android::hardware::media::omx::V1_0::CodecBuffer* t,
+            OMXBuffer const& l);
+    friend inline bool (::android::hardware::media::omx::V1_0::utils::
+            convertTo)(OMXBuffer* l,
+            ::android::hardware::media::omx::V1_0::CodecBuffer const& t);
+
+    enum BufferType {
+        kBufferTypeInvalid = 0,
+        kBufferTypePreset,
+        kBufferTypeSharedMem,
+        kBufferTypeANWBuffer, // Use only for non-Treble
+        kBufferTypeNativeHandle,
+        kBufferTypeHidlMemory // Mapped to CodecBuffer::Type::SHARED_MEM.
+    };
+
+    BufferType mBufferType;
+
+    // kBufferTypePreset
+    // If the port is operating in byte buffer mode, mRangeLength is the valid
+    // range length. Otherwise the range info should also be ignored.
+    OMX_U32 mRangeOffset;
+    OMX_U32 mRangeLength;
+
+    // kBufferTypeSharedMem
+    sp<IMemory> mMem;
+
+    // kBufferTypeANWBuffer
+    sp<GraphicBuffer> mGraphicBuffer;
+
+    // kBufferTypeNativeHandle
+    sp<NativeHandle> mNativeHandle;
+
+    // kBufferTypeHidlMemory
+    hidl_memory mHidlMemory;
+
+    // Move assignment
+    OMXBuffer &operator=(OMXBuffer&&);
+
+    // Deleted copy constructor and assignment.
+    OMXBuffer(const OMXBuffer&) = delete;
+    OMXBuffer& operator=(const OMXBuffer&) = delete;
+};
+
+}  // namespace android
+
+#endif  // _OMXBUFFER_H_
diff --git a/media/libmedia/include/media/OMXFenceParcelable.h b/media/libmedia/include/media/OMXFenceParcelable.h
new file mode 100644
index 0000000..2a8da87
--- /dev/null
+++ b/media/libmedia/include/media/OMXFenceParcelable.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _OMX_FENCE_PARCELABLE_
+#define _OMX_FENCE_PARCELABLE_
+
+#include <binder/Parcel.h>
+
+namespace android {
+
+struct OMXFenceParcelable;
+
+// This is needed temporarily for the OMX HIDL transition.
+namespace hardware {
+    struct hidl_handle;
+namespace media { namespace omx { namespace V1_0 {
+namespace implementation {
+    void wrapAs(::android::OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+    bool convertTo(::android::OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+}
+namespace utils {
+    void wrapAs(::android::OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+    bool convertTo(::android::OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+}
+}}}}
+
+struct OMXFenceParcelable : public Parcelable {
+    OMXFenceParcelable() : mFenceFd(-1) {}
+    OMXFenceParcelable(int fenceFd) : mFenceFd(fenceFd) {}
+
+    int get() const { return mFenceFd; }
+
+    status_t readFromParcel(const Parcel* parcel) override;
+    status_t writeToParcel(Parcel* parcel) const override;
+
+private:
+    // Disable copy ctor and operator=
+    OMXFenceParcelable(const OMXFenceParcelable &);
+    OMXFenceParcelable &operator=(const OMXFenceParcelable &);
+
+    int mFenceFd;
+
+    // This is needed temporarily for OMX HIDL transition.
+    friend void (::android::hardware::media::omx::V1_0::implementation::
+            wrapAs)(OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+    friend bool (::android::hardware::media::omx::V1_0::implementation::
+            convertTo)(OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+    friend void (::android::hardware::media::omx::V1_0::utils::
+            wrapAs)(OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+    friend bool (::android::hardware::media::omx::V1_0::utils::
+            convertTo)(OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+};
+
+inline status_t OMXFenceParcelable::readFromParcel(const Parcel* parcel) {
+    int32_t haveFence;
+    status_t err = parcel->readInt32(&haveFence);
+    if (err == OK && haveFence) {
+        int fd = ::dup(parcel->readFileDescriptor());
+        if (fd < 0) {
+            return fd;
+        }
+        mFenceFd = fd;
+    }
+    return err;
+}
+
+inline status_t OMXFenceParcelable::writeToParcel(Parcel* parcel) const {
+    status_t err = parcel->writeInt32(mFenceFd >= 0);
+    if (err == OK && mFenceFd >= 0) {
+        err = parcel->writeFileDescriptor(mFenceFd, true /* takeOwnership */);
+    }
+    return err;
+}
+
+} // namespace android
+
+#endif // _OMX_FENCE_PARCELABLE_
diff --git a/media/libmedia/include/media/PluginLoader.h b/media/libmedia/include/media/PluginLoader.h
new file mode 100644
index 0000000..a626e16
--- /dev/null
+++ b/media/libmedia/include/media/PluginLoader.h
@@ -0,0 +1,99 @@
+/**
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef PLUGIN_LOADER_H_
+#define PLUGIN_LOADER_H_
+
+#include "SharedLibrary.h"
+#include <utils/Log.h>
+#include <utils/String8.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+template <class T>
+class PluginLoader {
+
+  public:
+    PluginLoader(const char *dir, const char *entry) {
+        /**
+         * scan all plugins in the plugin directory and add them to the
+         * factories list.
+         */
+        String8 pluginDir(dir);
+
+        DIR* pDir = opendir(pluginDir.string());
+        if (pDir == NULL) {
+            ALOGE("Failed to find plugin directory %s", pluginDir.string());
+        } else {
+            struct dirent* pEntry;
+            while ((pEntry = readdir(pDir))) {
+                String8 file(pEntry->d_name);
+                if (file.getPathExtension() == ".so") {
+                    String8 path = pluginDir + "/" + pEntry->d_name;
+                    T *plugin = loadOne(path, entry);
+                    if (plugin) {
+                        factories.push(plugin);
+                    }
+                }
+            }
+            closedir(pDir);
+        }
+    }
+
+    ~PluginLoader() {
+        for (size_t i = 0; i < factories.size(); i++) {
+            delete factories[i];
+        }
+    }
+
+    T *getFactory(size_t i) const {
+        return factories[i];
+    }
+
+    size_t factoryCount() const {return factories.size();}
+
+  private:
+    T* loadOne(const char *path, const char *entry) {
+        sp<SharedLibrary> library = new SharedLibrary(String8(path));
+        if (!library.get()) {
+            ALOGE("Failed to open plugin library %s: %s", path,
+                    library->lastError());
+        } else {
+            typedef T *(*CreateFactoryFunc)();
+            CreateFactoryFunc createFactoryFunc =
+                    (CreateFactoryFunc)library->lookup(entry);
+            if (createFactoryFunc) {
+                ALOGV("Found plugin factory entry %s in %s", entry, path);
+                libraries.push(library);
+                T* result = createFactoryFunc();
+                return  result;
+           }
+        }
+        return NULL;
+    }
+
+    Vector<T *> factories;
+    Vector<sp<SharedLibrary> > libraries;
+
+    PluginLoader(const PluginLoader &) = delete;
+    void operator=(const PluginLoader &) = delete;
+};
+
+} // namespace android
+
+#endif // PLUGIN_LOADER_H_
+
diff --git a/media/libmedia/include/media/RecordBufferConverter.h b/media/libmedia/include/media/RecordBufferConverter.h
new file mode 100644
index 0000000..2abc45e
--- /dev/null
+++ b/media/libmedia/include/media/RecordBufferConverter.h
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_RECORD_BUFFER_CONVERTER_H
+#define ANDROID_RECORD_BUFFER_CONVERTER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <media/AudioBufferProvider.h>
+#include <system/audio.h>
+
+class AudioResampler;
+class PassthruBufferProvider;
+
+namespace android {
+
+/* The RecordBufferConverter is used for format, channel, and sample rate
+ * conversion for a RecordTrack.
+ *
+ * RecordBufferConverter uses the convert() method rather than exposing a
+ * buffer provider interface; this is to save a memory copy.
+ *
+ * There are legacy conversion requirements for this converter, specifically
+ * due to mono handling, so be careful about modifying.
+ *
+ * Original source audioflinger/Threads.{h,cpp}
+ */
+class RecordBufferConverter
+{
+public:
+    RecordBufferConverter(
+            audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
+            uint32_t srcSampleRate,
+            audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
+            uint32_t dstSampleRate);
+
+    ~RecordBufferConverter();
+
+    /* Converts input data from an AudioBufferProvider by format, channelMask,
+     * and sampleRate to a destination buffer.
+     *
+     * Parameters
+     *      dst:  buffer to place the converted data.
+     * provider:  buffer provider to obtain source data.
+     *   frames:  number of frames to convert
+     *
+     * Returns the number of frames converted.
+     */
+    size_t convert(void *dst, AudioBufferProvider *provider, size_t frames);
+
+    // returns NO_ERROR if constructor was successful
+    status_t initCheck() const {
+        // mSrcChannelMask set on successful updateParameters
+        return mSrcChannelMask != AUDIO_CHANNEL_INVALID ? NO_ERROR : NO_INIT;
+    }
+
+    // allows dynamic reconfigure of all parameters
+    status_t updateParameters(
+            audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
+            uint32_t srcSampleRate,
+            audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
+            uint32_t dstSampleRate);
+
+    // called to reset resampler buffers on record track discontinuity
+    void reset();
+
+private:
+    // format conversion when not using resampler
+    void convertNoResampler(void *dst, const void *src, size_t frames);
+
+    // format conversion when using resampler; modifies src in-place
+    void convertResampler(void *dst, /*not-a-const*/ void *src, size_t frames);
+
+    // user provided information
+    audio_channel_mask_t mSrcChannelMask;
+    audio_format_t       mSrcFormat;
+    uint32_t             mSrcSampleRate;
+    audio_channel_mask_t mDstChannelMask;
+    audio_format_t       mDstFormat;
+    uint32_t             mDstSampleRate;
+
+    // derived information
+    uint32_t             mSrcChannelCount;
+    uint32_t             mDstChannelCount;
+    size_t               mDstFrameSize;
+
+    // format conversion buffer
+    void                *mBuf;
+    size_t               mBufFrames;
+    size_t               mBufFrameSize;
+
+    // resampler info
+    AudioResampler      *mResampler;
+
+    bool                 mIsLegacyDownmix;  // legacy stereo to mono conversion needed
+    bool                 mIsLegacyUpmix;    // legacy mono to stereo conversion needed
+    bool                 mRequiresFloat;    // data processing requires float (e.g. resampler)
+    PassthruBufferProvider *mInputConverterProvider;    // converts input to float
+    int8_t               mIdxAry[sizeof(uint32_t) * 8]; // used for channel mask conversion
+};
+
+// ----------------------------------------------------------------------------
+} // namespace android
+
+#endif // ANDROID_RECORD_BUFFER_CONVERTER_H
diff --git a/media/libmedia/include/media/RingBuffer.h b/media/libmedia/include/media/RingBuffer.h
new file mode 100644
index 0000000..4d92d87
--- /dev/null
+++ b/media/libmedia/include/media/RingBuffer.h
@@ -0,0 +1,361 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_SERVICE_UTILS_RING_BUFFER_H
+#define ANDROID_SERVICE_UTILS_RING_BUFFER_H
+
+#include <utils/Log.h>
+#include <cutils/compiler.h>
+
+#include <iterator>
+#include <utility>
+#include <vector>
+
+namespace android {
+
+/**
+ * A RingBuffer class that maintains an array of objects that can grow up to a certain size.
+ * Elements added to the RingBuffer are inserted in the logical front of the buffer, and
+ * invalidate all current iterators for that RingBuffer object.
+ */
+template <class T>
+class RingBuffer final {
+public:
+
+    /**
+     * Construct a RingBuffer that can grow up to the given length.
+     */
+    explicit RingBuffer(size_t length);
+
+    /**
+     * Forward iterator to this class.  Implements an std:forward_iterator.
+     */
+    class iterator : public std::iterator<std::forward_iterator_tag, T> {
+    public:
+        iterator(T* ptr, size_t size, size_t pos, size_t ctr);
+
+        iterator& operator++();
+
+        iterator operator++(int);
+
+        bool operator==(const iterator& rhs);
+
+        bool operator!=(const iterator& rhs);
+
+        T& operator*();
+
+        T* operator->();
+
+    private:
+        T* mPtr;
+        size_t mSize;
+        size_t mPos;
+        size_t mCtr;
+    };
+
+    /**
+     * Constant forward iterator to this class.  Implements an std:forward_iterator.
+     */
+    class const_iterator : public std::iterator<std::forward_iterator_tag, T> {
+    public:
+        const_iterator(const T* ptr, size_t size, size_t pos, size_t ctr);
+
+        const_iterator& operator++();
+
+        const_iterator operator++(int);
+
+        bool operator==(const const_iterator& rhs);
+
+        bool operator!=(const const_iterator& rhs);
+
+        const T& operator*();
+
+        const T* operator->();
+
+    private:
+        const T* mPtr;
+        size_t mSize;
+        size_t mPos;
+        size_t mCtr;
+    };
+
+    /**
+     * Adds item to the front of this RingBuffer.  If the RingBuffer is at its maximum length,
+     * this will result in the last element being replaced (this is done using the element's
+     * assignment operator).
+     *
+     * All current iterators are invalidated.
+     */
+    void add(const T& item);
+
+    /**
+     * Moves item to the front of this RingBuffer.  Following a call to this, item should no
+     * longer be used.  If the RingBuffer is at its maximum length, this will result in the
+     * last element being replaced (this is done using the element's assignment operator).
+     *
+     * All current iterators are invalidated.
+     */
+    void add(T&& item);
+
+    /**
+     * Construct item in-place in the front of this RingBuffer using the given arguments.  If
+     * the RingBuffer is at its maximum length, this will result in the last element being
+     * replaced (this is done using the element's assignment operator).
+     *
+     * All current iterators are invalidated.
+     */
+    template <class... Args>
+    void emplace(Args&&... args);
+
+    /**
+     * Get an iterator to the front of this RingBuffer.
+     */
+    iterator begin();
+
+    /**
+     * Get an iterator to the end of this RingBuffer.
+     */
+    iterator end();
+
+    /**
+     * Get a const_iterator to the front of this RingBuffer.
+     */
+    const_iterator begin() const;
+
+    /**
+     * Get a const_iterator to the end of this RingBuffer.
+     */
+    const_iterator end() const;
+
+    /**
+     * Return a reference to the element at a given index.  If the index is out of range for
+     * this ringbuffer, [0, size), the behavior for this is undefined.
+     */
+    T& operator[](size_t index);
+
+    /**
+     * Return a const reference to the element at a given index.  If the index is out of range
+     * for this ringbuffer, [0, size), the behavior for this is undefined.
+     */
+    const T& operator[](size_t index) const;
+
+    /**
+     * Return the current size of this RingBuffer.
+     */
+    size_t size() const;
+
+    /**
+     * Remove all elements from this RingBuffer and set the size to 0.
+     */
+    void clear();
+
+private:
+    size_t mFrontIdx;
+    size_t mMaxBufferSize;
+    std::vector<T> mBuffer;
+}; // class RingBuffer
+
+
+template <class T>
+RingBuffer<T>::RingBuffer(size_t length) : mFrontIdx{0}, mMaxBufferSize{length} {}
+
+template <class T>
+RingBuffer<T>::iterator::iterator(T* ptr, size_t size, size_t pos, size_t ctr) :
+        mPtr{ptr}, mSize{size}, mPos{pos}, mCtr{ctr} {}
+
+template <class T>
+typename RingBuffer<T>::iterator& RingBuffer<T>::iterator::operator++() {
+    ++mCtr;
+
+    if (CC_UNLIKELY(mCtr == mSize)) {
+        mPos = mSize;
+        return *this;
+    }
+
+    mPos = ((CC_UNLIKELY(mPos == 0)) ? mSize - 1 : mPos - 1);
+    return *this;
+}
+
+template <class T>
+typename RingBuffer<T>::iterator RingBuffer<T>::iterator::operator++(int) {
+    iterator tmp{mPtr, mSize, mPos, mCtr};
+    ++(*this);
+    return tmp;
+}
+
+template <class T>
+bool RingBuffer<T>::iterator::operator==(const iterator& rhs) {
+    return (mPtr + mPos) == (rhs.mPtr + rhs.mPos);
+}
+
+template <class T>
+bool RingBuffer<T>::iterator::operator!=(const iterator& rhs) {
+    return (mPtr + mPos) != (rhs.mPtr + rhs.mPos);
+}
+
+template <class T>
+T& RingBuffer<T>::iterator::operator*() {
+    return *(mPtr + mPos);
+}
+
+template <class T>
+T* RingBuffer<T>::iterator::operator->() {
+    return mPtr + mPos;
+}
+
+template <class T>
+RingBuffer<T>::const_iterator::const_iterator(const T* ptr, size_t size, size_t pos, size_t ctr) :
+        mPtr{ptr}, mSize{size}, mPos{pos}, mCtr{ctr} {}
+
+template <class T>
+typename RingBuffer<T>::const_iterator& RingBuffer<T>::const_iterator::operator++() {
+    ++mCtr;
+
+    if (CC_UNLIKELY(mCtr == mSize)) {
+        mPos = mSize;
+        return *this;
+    }
+
+    mPos = ((CC_UNLIKELY(mPos == 0)) ? mSize - 1 : mPos - 1);
+    return *this;
+}
+
+template <class T>
+typename RingBuffer<T>::const_iterator RingBuffer<T>::const_iterator::operator++(int) {
+    const_iterator tmp{mPtr, mSize, mPos, mCtr};
+    ++(*this);
+    return tmp;
+}
+
+template <class T>
+bool RingBuffer<T>::const_iterator::operator==(const const_iterator& rhs) {
+    return (mPtr + mPos) == (rhs.mPtr + rhs.mPos);
+}
+
+template <class T>
+bool RingBuffer<T>::const_iterator::operator!=(const const_iterator& rhs) {
+    return (mPtr + mPos) != (rhs.mPtr + rhs.mPos);
+}
+
+template <class T>
+const T& RingBuffer<T>::const_iterator::operator*() {
+    return *(mPtr + mPos);
+}
+
+template <class T>
+const T* RingBuffer<T>::const_iterator::operator->() {
+    return mPtr + mPos;
+}
+
+template <class T>
+void RingBuffer<T>::add(const T& item) {
+    if (mBuffer.size() < mMaxBufferSize) {
+        mBuffer.push_back(item);
+        mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
+        return;
+    }
+
+    mBuffer[mFrontIdx] = item;
+    mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
+}
+
+template <class T>
+void RingBuffer<T>::add(T&& item) {
+    if (mBuffer.size() != mMaxBufferSize) {
+        mBuffer.push_back(std::forward<T>(item));
+        mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
+        return;
+    }
+
+    // Only works for types with move assignment operator
+    mBuffer[mFrontIdx] = std::forward<T>(item);
+    mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
+}
+
+template <class T>
+template <class... Args>
+void RingBuffer<T>::emplace(Args&&... args) {
+    if (mBuffer.size() != mMaxBufferSize) {
+        mBuffer.emplace_back(std::forward<Args>(args)...);
+        mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
+        return;
+    }
+
+    // Only works for types with move assignment operator
+    mBuffer[mFrontIdx] = T(std::forward<Args>(args)...);
+    mFrontIdx = ((mFrontIdx + 1) % mMaxBufferSize);
+}
+
+template <class T>
+typename RingBuffer<T>::iterator RingBuffer<T>::begin() {
+    size_t tmp = (mBuffer.size() == 0) ? 0 : mBuffer.size() - 1;
+    return iterator(mBuffer.data(), mBuffer.size(), (mFrontIdx == 0) ? tmp : mFrontIdx - 1, 0);
+}
+
+template <class T>
+typename RingBuffer<T>::iterator RingBuffer<T>::end() {
+    size_t s = mBuffer.size();
+    return iterator(mBuffer.data(), s, s, s);
+}
+
+template <class T>
+typename RingBuffer<T>::const_iterator RingBuffer<T>::begin() const {
+    size_t tmp = (mBuffer.size() == 0) ? 0 : mBuffer.size() - 1;
+    return const_iterator(mBuffer.data(), mBuffer.size(),
+            (mFrontIdx == 0) ? tmp : mFrontIdx - 1, 0);
+}
+
+template <class T>
+typename RingBuffer<T>::const_iterator RingBuffer<T>::end() const {
+    size_t s = mBuffer.size();
+    return const_iterator(mBuffer.data(), s, s, s);
+}
+
+template <class T>
+T& RingBuffer<T>::operator[](size_t index) {
+    LOG_ALWAYS_FATAL_IF(index >= mBuffer.size(), "Index %zu out of bounds, size is %zu.",
+            index, mBuffer.size());
+    size_t pos = (index >= mFrontIdx) ?
+            mBuffer.size() - 1 - (index - mFrontIdx) : mFrontIdx - 1 - index;
+    return mBuffer[pos];
+}
+
+template <class T>
+const T& RingBuffer<T>::operator[](size_t index) const {
+    LOG_ALWAYS_FATAL_IF(index >= mBuffer.size(), "Index %zu out of bounds, size is %zu.",
+            index, mBuffer.size());
+    size_t pos = (index >= mFrontIdx) ?
+            mBuffer.size() - 1 - (index - mFrontIdx) : mFrontIdx - 1 - index;
+    return mBuffer[pos];
+}
+
+template <class T>
+size_t RingBuffer<T>::size() const {
+    return mBuffer.size();
+}
+
+template <class T>
+void RingBuffer<T>::clear() {
+    mBuffer.clear();
+    mFrontIdx = 0;
+}
+
+}; // namespace android
+
+#endif // ANDROID_SERVICE_UTILS_RING_BUFFER_H
+
+
diff --git a/media/libmedia/include/media/SharedLibrary.h b/media/libmedia/include/media/SharedLibrary.h
new file mode 100644
index 0000000..fd02203
--- /dev/null
+++ b/media/libmedia/include/media/SharedLibrary.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SHARED_LIBRARY_H_
+#define SHARED_LIBRARY_H_
+
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace android {
+    class SharedLibrary : public RefBase {
+    public:
+        explicit SharedLibrary(const String8 &path);
+        ~SharedLibrary();
+
+        bool operator!() const;
+        void *lookup(const char *symbol) const;
+        const char *lastError() const;
+
+    private:
+        void *mLibHandle;
+        DISALLOW_EVIL_CONSTRUCTORS(SharedLibrary);
+    };
+};
+
+#endif // SHARED_LIBRARY_H_
diff --git a/include/media/SingleStateQueue.h b/media/libmedia/include/media/SingleStateQueue.h
similarity index 100%
rename from include/media/SingleStateQueue.h
rename to media/libmedia/include/media/SingleStateQueue.h
diff --git a/include/media/StringArray.h b/media/libmedia/include/media/StringArray.h
similarity index 100%
rename from include/media/StringArray.h
rename to media/libmedia/include/media/StringArray.h
diff --git a/media/libmedia/include/media/TypeConverter.h b/media/libmedia/include/media/TypeConverter.h
new file mode 100644
index 0000000..cb8a307
--- /dev/null
+++ b/media/libmedia/include/media/TypeConverter.h
@@ -0,0 +1,257 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_TYPE_CONVERTER_H_
+#define ANDROID_TYPE_CONVERTER_H_
+
+#include <string>
+#include <string.h>
+
+#include <system/audio.h>
+#include <utils/Log.h>
+#include <utils/Vector.h>
+#include <utils/SortedVector.h>
+
+#include <media/AudioParameter.h>
+#include "convert.h"
+
+namespace android {
+
+struct SampleRateTraits
+{
+    typedef uint32_t Type;
+    typedef SortedVector<Type> Collection;
+};
+struct DeviceTraits
+{
+    typedef audio_devices_t Type;
+    typedef Vector<Type> Collection;
+};
+struct OutputDeviceTraits : public DeviceTraits {};
+struct InputDeviceTraits : public DeviceTraits {};
+struct OutputFlagTraits
+{
+    typedef audio_output_flags_t Type;
+    typedef Vector<Type> Collection;
+};
+struct InputFlagTraits
+{
+    typedef audio_input_flags_t Type;
+    typedef Vector<Type> Collection;
+};
+struct FormatTraits
+{
+    typedef audio_format_t Type;
+    typedef Vector<Type> Collection;
+};
+struct ChannelTraits
+{
+    typedef audio_channel_mask_t Type;
+    typedef SortedVector<Type> Collection;
+};
+struct OutputChannelTraits : public ChannelTraits {};
+struct InputChannelTraits : public ChannelTraits {};
+struct ChannelIndexTraits : public ChannelTraits {};
+struct GainModeTraits
+{
+    typedef audio_gain_mode_t Type;
+    typedef Vector<Type> Collection;
+};
+struct StreamTraits
+{
+    typedef audio_stream_type_t Type;
+    typedef Vector<Type> Collection;
+};
+struct AudioModeTraits
+{
+    typedef audio_mode_t Type;
+    typedef Vector<Type> Collection;
+};
+struct UsageTraits
+{
+    typedef audio_usage_t Type;
+    typedef Vector<Type> Collection;
+};
+struct SourceTraits
+{
+    typedef audio_source_t Type;
+    typedef Vector<Type> Collection;
+};
+template <typename T>
+struct DefaultTraits
+{
+    typedef T Type;
+    typedef Vector<Type> Collection;
+};
+
+template <class Traits>
+static void collectionFromString(const std::string &str, typename Traits::Collection &collection,
+                                 const char *del = AudioParameter::valueListSeparator)
+{
+    char *literal = strdup(str.c_str());
+    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
+        typename Traits::Type value;
+        if (utilities::convertTo<std::string, typename Traits::Type >(cstr, value)) {
+            collection.add(value);
+        }
+    }
+    free(literal);
+}
+
+template <class Traits>
+class TypeConverter
+{
+public:
+    static bool toString(const typename Traits::Type &value, std::string &str);
+
+    static bool fromString(const std::string &str, typename Traits::Type &result);
+
+    static void collectionFromString(const std::string &str,
+                                     typename Traits::Collection &collection,
+                                     const char *del = AudioParameter::valueListSeparator);
+
+    static uint32_t maskFromString(
+            const std::string &str, const char *del = AudioParameter::valueListSeparator);
+
+    static void maskToString(
+            uint32_t mask, std::string &str, const char *del = AudioParameter::valueListSeparator);
+
+protected:
+    struct Table {
+        const char *literal;
+        typename Traits::Type value;
+    };
+
+    static const Table mTable[];
+};
+
+template <class Traits>
+inline bool TypeConverter<Traits>::toString(const typename Traits::Type &value, std::string &str)
+{
+    for (size_t i = 0; mTable[i].literal; i++) {
+        if (mTable[i].value == value) {
+            str = mTable[i].literal;
+            return true;
+        }
+    }
+    char result[64];
+    snprintf(result, sizeof(result), "Unknown enum value %d", value);
+    str = result;
+    return false;
+}
+
+template <class Traits>
+inline bool TypeConverter<Traits>::fromString(const std::string &str, typename Traits::Type &result)
+{
+    for (size_t i = 0; mTable[i].literal; i++) {
+        if (strcmp(mTable[i].literal, str.c_str()) == 0) {
+            ALOGV("stringToEnum() found %s", mTable[i].literal);
+            result = mTable[i].value;
+            return true;
+        }
+    }
+    return false;
+}
+
+template <class Traits>
+inline void TypeConverter<Traits>::collectionFromString(const std::string &str,
+        typename Traits::Collection &collection,
+        const char *del)
+{
+    char *literal = strdup(str.c_str());
+
+    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
+        typename Traits::Type value;
+        if (fromString(cstr, value)) {
+            collection.add(value);
+        }
+    }
+    free(literal);
+}
+
+template <class Traits>
+inline uint32_t TypeConverter<Traits>::maskFromString(const std::string &str, const char *del)
+{
+    char *literal = strdup(str.c_str());
+    uint32_t value = 0;
+    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
+        typename Traits::Type type;
+        if (fromString(cstr, type)) {
+            value |= static_cast<uint32_t>(type);
+        }
+    }
+    free(literal);
+    return value;
+}
+
+template <class Traits>
+inline void TypeConverter<Traits>::maskToString(uint32_t mask, std::string &str, const char *del)
+{
+    if (mask != 0) {
+        bool first_flag = true;
+        for (size_t i = 0; mTable[i].literal; i++) {
+            if (mTable[i].value != 0 && (mask & mTable[i].value) == mTable[i].value) {
+                if (!first_flag) str += del;
+                first_flag = false;
+                str += mTable[i].literal;
+            }
+        }
+    } else {
+        toString(static_cast<typename Traits::Type>(0), str);
+    }
+}
+
+typedef TypeConverter<OutputDeviceTraits> OutputDeviceConverter;
+typedef TypeConverter<InputDeviceTraits> InputDeviceConverter;
+typedef TypeConverter<OutputFlagTraits> OutputFlagConverter;
+typedef TypeConverter<InputFlagTraits> InputFlagConverter;
+typedef TypeConverter<FormatTraits> FormatConverter;
+typedef TypeConverter<OutputChannelTraits> OutputChannelConverter;
+typedef TypeConverter<InputChannelTraits> InputChannelConverter;
+typedef TypeConverter<ChannelIndexTraits> ChannelIndexConverter;
+typedef TypeConverter<GainModeTraits> GainModeConverter;
+typedef TypeConverter<StreamTraits> StreamTypeConverter;
+typedef TypeConverter<AudioModeTraits> AudioModeConverter;
+typedef TypeConverter<UsageTraits> UsageTypeConverter;
+typedef TypeConverter<SourceTraits> SourceTypeConverter;
+
+bool deviceFromString(const std::string& literalDevice, audio_devices_t& device);
+
+bool deviceToString(audio_devices_t device, std::string& literalDevice);
+
+SampleRateTraits::Collection samplingRatesFromString(
+        const std::string &samplingRates, const char *del = AudioParameter::valueListSeparator);
+
+FormatTraits::Collection formatsFromString(
+        const std::string &formats, const char *del = AudioParameter::valueListSeparator);
+
+audio_format_t formatFromString(
+        const std::string &literalFormat, audio_format_t defaultFormat = AUDIO_FORMAT_DEFAULT);
+
+audio_channel_mask_t channelMaskFromString(const std::string &literalChannels);
+
+ChannelTraits::Collection channelMasksFromString(
+        const std::string &channels, const char *del = AudioParameter::valueListSeparator);
+
+InputChannelTraits::Collection inputChannelMasksFromString(
+        const std::string &inChannels, const char *del = AudioParameter::valueListSeparator);
+
+OutputChannelTraits::Collection outputChannelMasksFromString(
+        const std::string &outChannels, const char *del = AudioParameter::valueListSeparator);
+
+}; // namespace android
+
+#endif  /*ANDROID_TYPE_CONVERTER_H_*/
diff --git a/media/libmedia/include/media/Visualizer.h b/media/libmedia/include/media/Visualizer.h
new file mode 100644
index 0000000..f8f4f50
--- /dev/null
+++ b/media/libmedia/include/media/Visualizer.h
@@ -0,0 +1,178 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIA_VISUALIZER_H
+#define ANDROID_MEDIA_VISUALIZER_H
+
+#include <media/AudioEffect.h>
+#include <system/audio_effects/effect_visualizer.h>
+#include <utils/Thread.h>
+
+/**
+ * The Visualizer class enables application to retrieve part of the currently playing audio for
+ * visualization purpose. It is not an audio recording interface and only returns partial and low
+ * quality audio content. However, to protect privacy of certain audio data (e.g voice mail) the use
+ * of the visualizer requires the permission android.permission.RECORD_AUDIO.
+ * The audio session ID passed to the constructor indicates which audio content should be
+ * visualized:
+ * - If the session is 0, the audio output mix is visualized
+ * - If the session is not 0, the audio from a particular MediaPlayer or AudioTrack
+ *   using this audio session is visualized
+ * Two types of representation of audio content can be captured:
+ * - Waveform data: consecutive 8-bit (unsigned) mono samples by using the getWaveForm() method
+ * - Frequency data: 8-bit magnitude FFT by using the getFft() method
+ *
+ * The length of the capture can be retrieved or specified by calling respectively
+ * getCaptureSize() and setCaptureSize() methods. Note that the size of the FFT
+ * is half of the specified capture size but both sides of the spectrum are returned yielding in a
+ * number of bytes equal to the capture size. The capture size must be a power of 2 in the range
+ * returned by getMinCaptureSize() and getMaxCaptureSize().
+ * In addition to the polling capture mode, a callback mode is also available by installing a
+ * callback function by use of the setCaptureCallBack() method. The rate at which the callback
+ * is called as well as the type of data returned is specified.
+ * Before capturing data, the Visualizer must be enabled by calling the setEnabled() method.
+ * When data capture is not needed any more, the Visualizer should be disabled.
+ */
+
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class Visualizer: public AudioEffect {
+public:
+
+    enum callback_flags {
+        CAPTURE_WAVEFORM = 0x00000001,  // capture callback returns a PCM wave form
+        CAPTURE_FFT = 0x00000002,       // apture callback returns a frequency representation
+        CAPTURE_CALL_JAVA = 0x00000004  // the callback thread can call java
+    };
+
+
+    /* Constructor.
+     * See AudioEffect constructor for details on parameters.
+     */
+                        Visualizer(const String16& opPackageName,
+                                   int32_t priority = 0,
+                                   effect_callback_t cbf = NULL,
+                                   void* user = NULL,
+                                   audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX);
+
+                        ~Visualizer();
+
+    virtual status_t    setEnabled(bool enabled);
+
+    // maximum capture size in samples
+    static uint32_t getMaxCaptureSize() { return VISUALIZER_CAPTURE_SIZE_MAX; }
+    // minimum capture size in samples
+    static uint32_t getMinCaptureSize() { return VISUALIZER_CAPTURE_SIZE_MIN; }
+    // maximum capture rate in millihertz
+    static uint32_t getMaxCaptureRate() { return CAPTURE_RATE_MAX; }
+
+    // callback used to return periodic PCM or FFT captures to the application. Either one or both
+    // types of data are returned (PCM and FFT) according to flags indicated when installing the
+    // callback. When a type of data is not present, the corresponding size (waveformSize or
+    // fftSize) is 0.
+    typedef void (*capture_cbk_t)(void* user,
+                                    uint32_t waveformSize,
+                                    uint8_t *waveform,
+                                    uint32_t fftSize,
+                                    uint8_t *fft,
+                                    uint32_t samplingrate);
+
+    // install a callback to receive periodic captures. The capture rate is specified in milliHertz
+    // and the capture format is according to flags  (see callback_flags).
+    status_t setCaptureCallBack(capture_cbk_t cbk, void* user, uint32_t flags, uint32_t rate);
+
+    // set the capture size capture size must be a power of two in the range
+    // [VISUALIZER_CAPTURE_SIZE_MAX. VISUALIZER_CAPTURE_SIZE_MIN]
+    // must be called when the visualizer is not enabled
+    status_t setCaptureSize(uint32_t size);
+    uint32_t getCaptureSize() { return mCaptureSize; }
+
+    // returns the capture rate indicated when installing the callback
+    uint32_t getCaptureRate() { return mCaptureRate; }
+
+    // returns the sampling rate of the audio being captured
+    uint32_t getSamplingRate() { return mSampleRate; }
+
+    // set the way volume affects the captured data
+    // mode must one of VISUALIZER_SCALING_MODE_NORMALIZED,
+    //  VISUALIZER_SCALING_MODE_AS_PLAYED
+    status_t setScalingMode(uint32_t mode);
+    uint32_t getScalingMode() { return mScalingMode; }
+
+    // set which measurements are done on the audio buffers processed by the effect.
+    // valid measurements (mask): MEASUREMENT_MODE_PEAK_RMS
+    status_t setMeasurementMode(uint32_t mode);
+    uint32_t getMeasurementMode() { return mMeasurementMode; }
+
+    // return a set of int32_t measurements
+    status_t getIntMeasurements(uint32_t type, uint32_t number, int32_t *measurements);
+
+    // return a capture in PCM 8 bit unsigned format. The size of the capture is equal to
+    // getCaptureSize()
+    status_t getWaveForm(uint8_t *waveform);
+
+    // return a capture in FFT 8 bit signed format. The size of the capture is equal to
+    // getCaptureSize() but the length of the FFT is half of the size (both parts of the spectrum
+    // are returned
+    status_t getFft(uint8_t *fft);
+
+protected:
+    // from IEffectClient
+    virtual void controlStatusChanged(bool controlGranted);
+
+private:
+
+    static const uint32_t CAPTURE_RATE_MAX = 20000;
+    static const uint32_t CAPTURE_RATE_DEF = 10000;
+    static const uint32_t CAPTURE_SIZE_DEF = VISUALIZER_CAPTURE_SIZE_MAX;
+
+    /* internal class to handle the callback */
+    class CaptureThread : public Thread
+    {
+    public:
+        CaptureThread(Visualizer& receiver, uint32_t captureRate, bool bCanCallJava = false);
+
+    private:
+        friend class Visualizer;
+        virtual bool        threadLoop();
+        Visualizer& mReceiver;
+        Mutex       mLock;
+        uint32_t mSleepTimeUs;
+    };
+
+    status_t doFft(uint8_t *fft, uint8_t *waveform);
+    void periodicCapture();
+    uint32_t initCaptureSize();
+
+    Mutex mCaptureLock;
+    uint32_t mCaptureRate;
+    uint32_t mCaptureSize;
+    uint32_t mSampleRate;
+    uint32_t mScalingMode;
+    uint32_t mMeasurementMode;
+    capture_cbk_t mCaptureCallBack;
+    void *mCaptureCbkUser;
+    sp<CaptureThread> mCaptureThread;
+    uint32_t mCaptureFlags;
+};
+
+
+}; // namespace android
+
+#endif // ANDROID_MEDIA_VISUALIZER_H
diff --git a/services/audiopolicy/utilities/convert/convert.h b/media/libmedia/include/media/convert.h
similarity index 100%
rename from services/audiopolicy/utilities/convert/convert.h
rename to media/libmedia/include/media/convert.h
diff --git a/include/media/mediametadataretriever.h b/media/libmedia/include/media/mediametadataretriever.h
similarity index 100%
rename from include/media/mediametadataretriever.h
rename to media/libmedia/include/media/mediametadataretriever.h
diff --git a/media/libmedia/include/media/mediaplayer.h b/media/libmedia/include/media/mediaplayer.h
new file mode 100644
index 0000000..623c374
--- /dev/null
+++ b/media/libmedia/include/media/mediaplayer.h
@@ -0,0 +1,317 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIAPLAYER_H
+#define ANDROID_MEDIAPLAYER_H
+
+#include <arpa/inet.h>
+
+#include <binder/IMemory.h>
+
+#include <media/AudioResamplerPublic.h>
+#include <media/BufferingSettings.h>
+#include <media/IMediaPlayerClient.h>
+#include <media/IMediaPlayer.h>
+#include <media/IMediaDeathNotifier.h>
+#include <media/IStreamSource.h>
+
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+
+struct ANativeWindow;
+
+namespace android {
+
+struct AVSyncSettings;
+class IGraphicBufferProducer;
+class Surface;
+
+enum media_event_type {
+    MEDIA_NOP               = 0, // interface test message
+    MEDIA_PREPARED          = 1,
+    MEDIA_PLAYBACK_COMPLETE = 2,
+    MEDIA_BUFFERING_UPDATE  = 3,
+    MEDIA_SEEK_COMPLETE     = 4,
+    MEDIA_SET_VIDEO_SIZE    = 5,
+    MEDIA_STARTED           = 6,
+    MEDIA_PAUSED            = 7,
+    MEDIA_STOPPED           = 8,
+    MEDIA_SKIPPED           = 9,
+    MEDIA_TIMED_TEXT        = 99,
+    MEDIA_ERROR             = 100,
+    MEDIA_INFO              = 200,
+    MEDIA_SUBTITLE_DATA     = 201,
+    MEDIA_META_DATA         = 202,
+    MEDIA_DRM_INFO          = 210,
+};
+
+// Generic error codes for the media player framework.  Errors are fatal, the
+// playback must abort.
+//
+// Errors are communicated back to the client using the
+// MediaPlayerListener::notify method defined below.
+// In this situation, 'notify' is invoked with the following:
+//   'msg' is set to MEDIA_ERROR.
+//   'ext1' should be a value from the enum media_error_type.
+//   'ext2' contains an implementation dependant error code to provide
+//          more details. Should default to 0 when not used.
+//
+// The codes are distributed as follow:
+//   0xx: Reserved
+//   1xx: Android Player errors. Something went wrong inside the MediaPlayer.
+//   2xx: Media errors (e.g Codec not supported). There is a problem with the
+//        media itself.
+//   3xx: Runtime errors. Some extraordinary condition arose making the playback
+//        impossible.
+//
+enum media_error_type {
+    // 0xx
+    MEDIA_ERROR_UNKNOWN = 1,
+    // 1xx
+    MEDIA_ERROR_SERVER_DIED = 100,
+    // 2xx
+    MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200,
+    // 3xx
+};
+
+
+// Info and warning codes for the media player framework.  These are non fatal,
+// the playback is going on but there might be some user visible issues.
+//
+// Info and warning messages are communicated back to the client using the
+// MediaPlayerListener::notify method defined below.  In this situation,
+// 'notify' is invoked with the following:
+//   'msg' is set to MEDIA_INFO.
+//   'ext1' should be a value from the enum media_info_type.
+//   'ext2' contains an implementation dependant info code to provide
+//          more details. Should default to 0 when not used.
+//
+// The codes are distributed as follow:
+//   0xx: Reserved
+//   7xx: Android Player info/warning (e.g player lagging behind.)
+//   8xx: Media info/warning (e.g media badly interleaved.)
+//
+enum media_info_type {
+    // 0xx
+    MEDIA_INFO_UNKNOWN = 1,
+    // The player was started because it was used as the next player for another
+    // player, which just completed playback
+    MEDIA_INFO_STARTED_AS_NEXT = 2,
+    // The player just pushed the very first video frame for rendering
+    MEDIA_INFO_RENDERING_START = 3,
+    // 7xx
+    // The video is too complex for the decoder: it can't decode frames fast
+    // enough. Possibly only the audio plays fine at this stage.
+    MEDIA_INFO_VIDEO_TRACK_LAGGING = 700,
+    // MediaPlayer is temporarily pausing playback internally in order to
+    // buffer more data.
+    MEDIA_INFO_BUFFERING_START = 701,
+    // MediaPlayer is resuming playback after filling buffers.
+    MEDIA_INFO_BUFFERING_END = 702,
+    // Bandwidth in recent past
+    MEDIA_INFO_NETWORK_BANDWIDTH = 703,
+
+    // 8xx
+    // Bad interleaving means that a media has been improperly interleaved or not
+    // interleaved at all, e.g has all the video samples first then all the audio
+    // ones. Video is playing but a lot of disk seek may be happening.
+    MEDIA_INFO_BAD_INTERLEAVING = 800,
+    // The media is not seekable (e.g live stream).
+    MEDIA_INFO_NOT_SEEKABLE = 801,
+    // New media metadata is available.
+    MEDIA_INFO_METADATA_UPDATE = 802,
+    // Audio can not be played.
+    MEDIA_INFO_PLAY_AUDIO_ERROR = 804,
+    // Video can not be played.
+    MEDIA_INFO_PLAY_VIDEO_ERROR = 805,
+
+    //9xx
+    MEDIA_INFO_TIMED_TEXT_ERROR = 900,
+};
+
+
+
+enum media_player_states {
+    MEDIA_PLAYER_STATE_ERROR        = 0,
+    MEDIA_PLAYER_IDLE               = 1 << 0,
+    MEDIA_PLAYER_INITIALIZED        = 1 << 1,
+    MEDIA_PLAYER_PREPARING          = 1 << 2,
+    MEDIA_PLAYER_PREPARED           = 1 << 3,
+    MEDIA_PLAYER_STARTED            = 1 << 4,
+    MEDIA_PLAYER_PAUSED             = 1 << 5,
+    MEDIA_PLAYER_STOPPED            = 1 << 6,
+    MEDIA_PLAYER_PLAYBACK_COMPLETE  = 1 << 7
+};
+
+// Keep KEY_PARAMETER_* in sync with MediaPlayer.java.
+// The same enum space is used for both set and get, in case there are future keys that
+// can be both set and get.  But as of now, all parameters are either set only or get only.
+enum media_parameter_keys {
+    // Streaming/buffering parameters
+    KEY_PARAMETER_CACHE_STAT_COLLECT_FREQ_MS = 1100,            // set only
+
+    // Return a Parcel containing a single int, which is the channel count of the
+    // audio track, or zero for error (e.g. no audio track) or unknown.
+    KEY_PARAMETER_AUDIO_CHANNEL_COUNT = 1200,                   // get only
+
+    // Playback rate expressed in permille (1000 is normal speed), saved as int32_t, with negative
+    // values used for rewinding or reverse playback.
+    KEY_PARAMETER_PLAYBACK_RATE_PERMILLE = 1300,                // set only
+
+    // Set a Parcel containing the value of a parcelled Java AudioAttribute instance
+    KEY_PARAMETER_AUDIO_ATTRIBUTES = 1400                       // set only
+};
+
+// Keep INVOKE_ID_* in sync with MediaPlayer.java.
+enum media_player_invoke_ids {
+    INVOKE_ID_GET_TRACK_INFO = 1,
+    INVOKE_ID_ADD_EXTERNAL_SOURCE = 2,
+    INVOKE_ID_ADD_EXTERNAL_SOURCE_FD = 3,
+    INVOKE_ID_SELECT_TRACK = 4,
+    INVOKE_ID_UNSELECT_TRACK = 5,
+    INVOKE_ID_SET_VIDEO_SCALING_MODE = 6,
+    INVOKE_ID_GET_SELECTED_TRACK = 7
+};
+
+// Keep MEDIA_TRACK_TYPE_* in sync with MediaPlayer.java.
+enum media_track_type {
+    MEDIA_TRACK_TYPE_UNKNOWN = 0,
+    MEDIA_TRACK_TYPE_VIDEO = 1,
+    MEDIA_TRACK_TYPE_AUDIO = 2,
+    MEDIA_TRACK_TYPE_TIMEDTEXT = 3,
+    MEDIA_TRACK_TYPE_SUBTITLE = 4,
+    MEDIA_TRACK_TYPE_METADATA = 5,
+};
+
+// ----------------------------------------------------------------------------
+// ref-counted object for callbacks
+class MediaPlayerListener: virtual public RefBase
+{
+public:
+    virtual void notify(int msg, int ext1, int ext2, const Parcel *obj) = 0;
+};
+
+struct IMediaHTTPService;
+
+class MediaPlayer : public BnMediaPlayerClient,
+                    public virtual IMediaDeathNotifier
+{
+public:
+    MediaPlayer();
+    ~MediaPlayer();
+            void            died();
+            void            disconnect();
+
+            status_t        setDataSource(
+                    const sp<IMediaHTTPService> &httpService,
+                    const char *url,
+                    const KeyedVector<String8, String8> *headers);
+
+            status_t        setDataSource(int fd, int64_t offset, int64_t length);
+            status_t        setDataSource(const sp<IDataSource> &source);
+            status_t        setVideoSurfaceTexture(
+                                    const sp<IGraphicBufferProducer>& bufferProducer);
+            status_t        setListener(const sp<MediaPlayerListener>& listener);
+            status_t        getDefaultBufferingSettings(BufferingSettings* buffering /* nonnull */);
+            status_t        getBufferingSettings(BufferingSettings* buffering /* nonnull */);
+            status_t        setBufferingSettings(const BufferingSettings& buffering);
+            status_t        prepare();
+            status_t        prepareAsync();
+            status_t        start();
+            status_t        stop();
+            status_t        pause();
+            bool            isPlaying();
+            status_t        setPlaybackSettings(const AudioPlaybackRate& rate);
+            status_t        getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */);
+            status_t        setSyncSettings(const AVSyncSettings& sync, float videoFpsHint);
+            status_t        getSyncSettings(
+                                    AVSyncSettings* sync /* nonnull */,
+                                    float* videoFps /* nonnull */);
+            status_t        getVideoWidth(int *w);
+            status_t        getVideoHeight(int *h);
+            status_t        seekTo(
+                    int msec,
+                    MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC);
+            status_t        getCurrentPosition(int *msec);
+            status_t        getDuration(int *msec);
+            status_t        reset();
+            status_t        setAudioStreamType(audio_stream_type_t type);
+            status_t        getAudioStreamType(audio_stream_type_t *type);
+            status_t        setLooping(int loop);
+            bool            isLooping();
+            status_t        setVolume(float leftVolume, float rightVolume);
+            void            notify(int msg, int ext1, int ext2, const Parcel *obj = NULL);
+            status_t        invoke(const Parcel& request, Parcel *reply);
+            status_t        setMetadataFilter(const Parcel& filter);
+            status_t        getMetadata(bool update_only, bool apply_filter, Parcel *metadata);
+            status_t        setAudioSessionId(audio_session_t sessionId);
+            audio_session_t getAudioSessionId();
+            status_t        setAuxEffectSendLevel(float level);
+            status_t        attachAuxEffect(int effectId);
+            status_t        setParameter(int key, const Parcel& request);
+            status_t        getParameter(int key, Parcel* reply);
+            status_t        setRetransmitEndpoint(const char* addrString, uint16_t port);
+            status_t        setNextMediaPlayer(const sp<MediaPlayer>& player);
+
+            VolumeShaper::Status applyVolumeShaper(
+                                    const sp<VolumeShaper::Configuration>& configuration,
+                                    const sp<VolumeShaper::Operation>& operation);
+            sp<VolumeShaper::State> getVolumeShaperState(int id);
+            // Modular DRM
+            status_t        prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId);
+            status_t        releaseDrm();
+
+private:
+            void            clear_l();
+            status_t        seekTo_l(int msec, MediaPlayerSeekMode mode);
+            status_t        prepareAsync_l();
+            status_t        getDuration_l(int *msec);
+            status_t        attachNewPlayer(const sp<IMediaPlayer>& player);
+            status_t        reset_l();
+            status_t        doSetRetransmitEndpoint(const sp<IMediaPlayer>& player);
+            status_t        checkStateForKeySet_l(int key);
+
+    sp<IMediaPlayer>            mPlayer;
+    thread_id_t                 mLockThreadId;
+    Mutex                       mLock;
+    Mutex                       mNotifyLock;
+    Condition                   mSignal;
+    sp<MediaPlayerListener>     mListener;
+    void*                       mCookie;
+    media_player_states         mCurrentState;
+    int                         mCurrentPosition;
+    MediaPlayerSeekMode         mCurrentSeekMode;
+    int                         mSeekPosition;
+    MediaPlayerSeekMode         mSeekMode;
+    bool                        mPrepareSync;
+    status_t                    mPrepareStatus;
+    audio_stream_type_t         mStreamType;
+    Parcel*                     mAudioAttributesParcel;
+    bool                        mLoop;
+    float                       mLeftVolume;
+    float                       mRightVolume;
+    int                         mVideoWidth;
+    int                         mVideoHeight;
+    audio_session_t             mAudioSessionId;
+    float                       mSendLevel;
+    struct sockaddr_in          mRetransmitEndpoint;
+    bool                        mRetransmitEndpointValid;
+    BufferingSettings           mCurrentBufferingSettings;
+};
+
+}; // namespace android
+
+#endif // ANDROID_MEDIAPLAYER_H
diff --git a/media/libmedia/include/media/mediarecorder.h b/media/libmedia/include/media/mediarecorder.h
new file mode 100644
index 0000000..071e7a1
--- /dev/null
+++ b/media/libmedia/include/media/mediarecorder.h
@@ -0,0 +1,278 @@
+/*
+ ** Copyright (C) 2008 The Android Open Source Project
+ **
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ **
+ **     http://www.apache.org/licenses/LICENSE-2.0
+ **
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ **
+ ** limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIARECORDER_H
+#define ANDROID_MEDIARECORDER_H
+
+#include <utils/Log.h>
+#include <utils/threads.h>
+#include <utils/List.h>
+#include <utils/Errors.h>
+#include <media/IMediaRecorderClient.h>
+#include <media/IMediaDeathNotifier.h>
+
+namespace android {
+
+class Surface;
+class IMediaRecorder;
+class ICameraRecordingProxy;
+class IGraphicBufferProducer;
+struct PersistentSurface;
+class Surface;
+
+namespace hardware {
+class ICamera;
+}
+
+typedef void (*media_completion_f)(status_t status, void *cookie);
+
+enum video_source {
+    VIDEO_SOURCE_DEFAULT = 0,
+    VIDEO_SOURCE_CAMERA = 1,
+    VIDEO_SOURCE_SURFACE = 2,
+
+    VIDEO_SOURCE_LIST_END  // must be last - used to validate audio source type
+};
+
+//Please update media/java/android/media/MediaRecorder.java if the following is updated.
+enum output_format {
+    OUTPUT_FORMAT_DEFAULT = 0,
+    OUTPUT_FORMAT_THREE_GPP = 1,
+    OUTPUT_FORMAT_MPEG_4 = 2,
+
+
+    OUTPUT_FORMAT_AUDIO_ONLY_START = 3, // Used in validating the output format.  Should be the
+                                        //  at the start of the audio only output formats.
+
+    /* These are audio only file formats */
+    OUTPUT_FORMAT_RAW_AMR = 3, //to be backward compatible
+    OUTPUT_FORMAT_AMR_NB = 3,
+    OUTPUT_FORMAT_AMR_WB = 4,
+    OUTPUT_FORMAT_AAC_ADIF = 5,
+    OUTPUT_FORMAT_AAC_ADTS = 6,
+
+    OUTPUT_FORMAT_AUDIO_ONLY_END = 7, // Used in validating the output format.  Should be the
+                                      //  at the end of the audio only output formats.
+
+    /* Stream over a socket, limited to a single stream */
+    OUTPUT_FORMAT_RTP_AVP = 7,
+
+    /* H.264/AAC data encapsulated in MPEG2/TS */
+    OUTPUT_FORMAT_MPEG2TS = 8,
+
+    /* VP8/VORBIS data in a WEBM container */
+    OUTPUT_FORMAT_WEBM = 9,
+
+    OUTPUT_FORMAT_LIST_END // must be last - used to validate format type
+};
+
+enum audio_encoder {
+    AUDIO_ENCODER_DEFAULT = 0,
+    AUDIO_ENCODER_AMR_NB = 1,
+    AUDIO_ENCODER_AMR_WB = 2,
+    AUDIO_ENCODER_AAC = 3,
+    AUDIO_ENCODER_HE_AAC = 4,
+    AUDIO_ENCODER_AAC_ELD = 5,
+    AUDIO_ENCODER_VORBIS = 6,
+
+    AUDIO_ENCODER_LIST_END // must be the last - used to validate the audio encoder type
+};
+
+enum video_encoder {
+    VIDEO_ENCODER_DEFAULT = 0,
+    VIDEO_ENCODER_H263 = 1,
+    VIDEO_ENCODER_H264 = 2,
+    VIDEO_ENCODER_MPEG_4_SP = 3,
+    VIDEO_ENCODER_VP8 = 4,
+    VIDEO_ENCODER_HEVC = 5,
+
+    VIDEO_ENCODER_LIST_END // must be the last - used to validate the video encoder type
+};
+
+/*
+ * The state machine of the media_recorder.
+ */
+enum media_recorder_states {
+    // Error state.
+    MEDIA_RECORDER_ERROR                 =      0,
+
+    // Recorder was just created.
+    MEDIA_RECORDER_IDLE                  = 1 << 0,
+
+    // Recorder has been initialized.
+    MEDIA_RECORDER_INITIALIZED           = 1 << 1,
+
+    // Configuration of the recorder has been completed.
+    MEDIA_RECORDER_DATASOURCE_CONFIGURED = 1 << 2,
+
+    // Recorder is ready to start.
+    MEDIA_RECORDER_PREPARED              = 1 << 3,
+
+    // Recording is in progress.
+    MEDIA_RECORDER_RECORDING             = 1 << 4,
+};
+
+// The "msg" code passed to the listener in notify.
+enum media_recorder_event_type {
+    MEDIA_RECORDER_EVENT_LIST_START               = 1,
+    MEDIA_RECORDER_EVENT_ERROR                    = 1,
+    MEDIA_RECORDER_EVENT_INFO                     = 2,
+    MEDIA_RECORDER_EVENT_LIST_END                 = 99,
+
+    // Track related event types
+    MEDIA_RECORDER_TRACK_EVENT_LIST_START         = 100,
+    MEDIA_RECORDER_TRACK_EVENT_ERROR              = 100,
+    MEDIA_RECORDER_TRACK_EVENT_INFO               = 101,
+    MEDIA_RECORDER_TRACK_EVENT_LIST_END           = 1000,
+};
+
+/*
+ * The (part of) "what" code passed to the listener in notify.
+ * When the error or info type is track specific, the what has
+ * the following layout:
+ * the left-most 16-bit is meant for error or info type.
+ * the right-most 4-bit is meant for track id.
+ * the rest is reserved.
+ *
+ * | track id | reserved |     error or info type     |
+ * 31         28         16                           0
+ *
+ */
+enum media_recorder_error_type {
+    MEDIA_RECORDER_ERROR_UNKNOWN                   = 1,
+
+    // Track related error type
+    MEDIA_RECORDER_TRACK_ERROR_LIST_START          = 100,
+    MEDIA_RECORDER_TRACK_ERROR_GENERAL             = 100,
+    MEDIA_RECORDER_ERROR_VIDEO_NO_SYNC_FRAME       = 200,
+    MEDIA_RECORDER_TRACK_ERROR_LIST_END            = 1000,
+};
+
+// The codes are distributed as follow:
+//   0xx: Reserved
+//   8xx: General info/warning
+//
+enum media_recorder_info_type {
+    MEDIA_RECORDER_INFO_UNKNOWN                   = 1,
+
+    MEDIA_RECORDER_INFO_MAX_DURATION_REACHED      = 800,
+    MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED      = 801,
+    MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING  = 802,
+    MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED  = 803,
+
+    // All track related informtional events start here
+    MEDIA_RECORDER_TRACK_INFO_LIST_START           = 1000,
+    MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS    = 1000,
+    MEDIA_RECORDER_TRACK_INFO_PROGRESS_IN_TIME     = 1001,
+    MEDIA_RECORDER_TRACK_INFO_TYPE                 = 1002,
+    MEDIA_RECORDER_TRACK_INFO_DURATION_MS          = 1003,
+
+    // The time to measure the max chunk duration
+    MEDIA_RECORDER_TRACK_INFO_MAX_CHUNK_DUR_MS     = 1004,
+
+    MEDIA_RECORDER_TRACK_INFO_ENCODED_FRAMES       = 1005,
+
+    // The time to measure how well the audio and video
+    // track data is interleaved.
+    MEDIA_RECORDER_TRACK_INTER_CHUNK_TIME_MS       = 1006,
+
+    // The time to measure system response. Note that
+    // the delay does not include the intentional delay
+    // we use to eliminate the recording sound.
+    MEDIA_RECORDER_TRACK_INFO_INITIAL_DELAY_MS     = 1007,
+
+    // The time used to compensate for initial A/V sync.
+    MEDIA_RECORDER_TRACK_INFO_START_OFFSET_MS      = 1008,
+
+    // Total number of bytes of the media data.
+    MEDIA_RECORDER_TRACK_INFO_DATA_KBYTES          = 1009,
+
+    MEDIA_RECORDER_TRACK_INFO_LIST_END             = 2000,
+};
+
+// ----------------------------------------------------------------------------
+// ref-counted object for callbacks
+class MediaRecorderListener: virtual public RefBase
+{
+public:
+    virtual void notify(int msg, int ext1, int ext2) = 0;
+};
+
+class MediaRecorder : public BnMediaRecorderClient,
+                      public virtual IMediaDeathNotifier
+{
+public:
+    MediaRecorder(const String16& opPackageName);
+    ~MediaRecorder();
+
+    void        died();
+    status_t    initCheck();
+    status_t    setCamera(const sp<hardware::ICamera>& camera,
+            const sp<ICameraRecordingProxy>& proxy);
+    status_t    setPreviewSurface(const sp<IGraphicBufferProducer>& surface);
+    status_t    setVideoSource(int vs);
+    status_t    setAudioSource(int as);
+    status_t    setOutputFormat(int of);
+    status_t    setVideoEncoder(int ve);
+    status_t    setAudioEncoder(int ae);
+    status_t    setOutputFile(int fd);
+    status_t    setNextOutputFile(int fd);
+    status_t    setVideoSize(int width, int height);
+    status_t    setVideoFrameRate(int frames_per_second);
+    status_t    setParameters(const String8& params);
+    status_t    setListener(const sp<MediaRecorderListener>& listener);
+    status_t    setClientName(const String16& clientName);
+    status_t    prepare();
+    status_t    getMaxAmplitude(int* max);
+    status_t    start();
+    status_t    stop();
+    status_t    reset();
+    status_t    pause();
+    status_t    resume();
+    status_t    init();
+    status_t    close();
+    status_t    release();
+    void        notify(int msg, int ext1, int ext2);
+    status_t    setInputSurface(const sp<PersistentSurface>& surface);
+    sp<IGraphicBufferProducer>     querySurfaceMediaSourceFromMediaServer();
+    status_t    getMetrics(Parcel *reply);
+
+private:
+    void                    doCleanUp();
+    status_t                doReset();
+
+    sp<IMediaRecorder>          mMediaRecorder;
+    sp<MediaRecorderListener>   mListener;
+
+    // Reference to IGraphicBufferProducer
+    // for encoding GL Frames. That is useful only when the
+    // video source is set to VIDEO_SOURCE_GRALLOC_BUFFER
+    sp<IGraphicBufferProducer>  mSurfaceMediaSource;
+
+    media_recorder_states       mCurrentState;
+    bool                        mIsAudioSourceSet;
+    bool                        mIsVideoSourceSet;
+    bool                        mIsAudioEncoderSet;
+    bool                        mIsVideoEncoderSet;
+    bool                        mIsOutputFileSet;
+    Mutex                       mLock;
+    Mutex                       mNotifyLock;
+};
+
+};  // namespace android
+
+#endif // ANDROID_MEDIARECORDER_H
diff --git a/include/media/mediascanner.h b/media/libmedia/include/media/mediascanner.h
similarity index 100%
rename from include/media/mediascanner.h
rename to media/libmedia/include/media/mediascanner.h
diff --git a/media/libmedia/mediaplayer.cpp b/media/libmedia/mediaplayer.cpp
index fbe749c..b976721 100644
--- a/media/libmedia/mediaplayer.cpp
+++ b/media/libmedia/mediaplayer.cpp
@@ -16,7 +16,7 @@
 */
 
 //#define LOG_NDEBUG 0
-#define LOG_TAG "MediaPlayer"
+#define LOG_TAG "MediaPlayerNative"
 
 #include <fcntl.h>
 #include <inttypes.h>
@@ -36,6 +36,7 @@
 #include <media/AudioSystem.h>
 #include <media/AVSyncSettings.h>
 #include <media/IDataSource.h>
+#include <media/MediaAnalyticsItem.h>
 
 #include <binder/MemoryBase.h>
 
@@ -55,7 +56,9 @@
     mStreamType = AUDIO_STREAM_MUSIC;
     mAudioAttributesParcel = NULL;
     mCurrentPosition = -1;
+    mCurrentSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
     mSeekPosition = -1;
+    mSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
     mCurrentState = MEDIA_PLAYER_IDLE;
     mPrepareSync = false;
     mPrepareStatus = NO_ERROR;
@@ -100,7 +103,9 @@
 void MediaPlayer::clear_l()
 {
     mCurrentPosition = -1;
+    mCurrentSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
     mSeekPosition = -1;
+    mSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
     mVideoWidth = mVideoHeight = 0;
     mRetransmitEndpointValid = false;
 }
@@ -132,8 +137,10 @@
         mPlayer = player;
         if (player != 0) {
             mCurrentState = MEDIA_PLAYER_INITIALIZED;
+            player->getDefaultBufferingSettings(&mCurrentBufferingSettings);
             err = NO_ERROR;
         } else {
+            mCurrentBufferingSettings = BufferingSettings();
             ALOGE("Unable to create media player");
         }
     }
@@ -240,6 +247,44 @@
     return mPlayer->setVideoSurfaceTexture(bufferProducer);
 }
 
+status_t MediaPlayer::getDefaultBufferingSettings(BufferingSettings* buffering /* nonnull */)
+{
+    ALOGV("getDefaultBufferingSettings");
+
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == 0) {
+        return NO_INIT;
+    }
+    return mPlayer->getDefaultBufferingSettings(buffering);
+}
+
+status_t MediaPlayer::getBufferingSettings(BufferingSettings* buffering /* nonnull */)
+{
+    ALOGV("getBufferingSettings");
+
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == 0) {
+        return NO_INIT;
+    }
+    *buffering = mCurrentBufferingSettings;
+    return NO_ERROR;
+}
+
+status_t MediaPlayer::setBufferingSettings(const BufferingSettings& buffering)
+{
+    ALOGV("setBufferingSettings");
+
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == 0) {
+        return NO_INIT;
+    }
+    status_t err =  mPlayer->setBufferingSettings(buffering);
+    if (err == NO_ERROR) {
+        mCurrentBufferingSettings = buffering;
+    }
+    return err;
+}
+
 // must call with lock held
 status_t MediaPlayer::prepareAsync_l()
 {
@@ -508,9 +553,9 @@
     return getDuration_l(msec);
 }
 
-status_t MediaPlayer::seekTo_l(int msec)
+status_t MediaPlayer::seekTo_l(int msec, MediaPlayerSeekMode mode)
 {
-    ALOGV("seekTo %d", msec);
+    ALOGV("seekTo (%d, %d)", msec, mode);
     if ((mPlayer != 0) && ( mCurrentState & ( MEDIA_PLAYER_STARTED | MEDIA_PLAYER_PREPARED |
             MEDIA_PLAYER_PAUSED |  MEDIA_PLAYER_PLAYBACK_COMPLETE) ) ) {
         if ( msec < 0 ) {
@@ -537,12 +582,14 @@
 
         // cache duration
         mCurrentPosition = msec;
+        mCurrentSeekMode = mode;
         if (mSeekPosition < 0) {
             mSeekPosition = msec;
-            return mPlayer->seekTo(msec);
+            mSeekMode = mode;
+            return mPlayer->seekTo(msec, mode);
         }
         else {
-            ALOGV("Seek in progress - queue up seekTo[%d]", msec);
+            ALOGV("Seek in progress - queue up seekTo[%d, %d]", msec, mode);
             return NO_ERROR;
         }
     }
@@ -551,11 +598,11 @@
     return INVALID_OPERATION;
 }
 
-status_t MediaPlayer::seekTo(int msec)
+status_t MediaPlayer::seekTo(int msec, MediaPlayerSeekMode mode)
 {
     mLockThreadId = getThreadId();
     Mutex::Autolock _l(mLock);
-    status_t result = seekTo_l(msec);
+    status_t result = seekTo_l(msec, mode);
     mLockThreadId = 0;
 
     return result;
@@ -578,6 +625,7 @@
         // setDataSource has to be called again to create a
         // new mediaplayer.
         mPlayer = 0;
+        mCurrentBufferingSettings = BufferingSettings();
         return ret;
     }
     clear_l();
@@ -763,7 +811,11 @@
     ALOGV("MediaPlayer::getParameter(%d)", key);
     Mutex::Autolock _l(mLock);
     if (mPlayer != NULL) {
-        return  mPlayer->getParameter(key, reply);
+        status_t status =  mPlayer->getParameter(key, reply);
+        if (status != OK) {
+            ALOGD("getParameter returns %d", status);
+        }
+        return status;
     }
     ALOGV("getParameter: no active player");
     return INVALID_OPERATION;
@@ -827,7 +879,7 @@
     case MEDIA_NOP: // interface test message
         break;
     case MEDIA_PREPARED:
-        ALOGV("prepared");
+        ALOGV("MediaPlayer::notify() prepared");
         mCurrentState = MEDIA_PLAYER_PREPARED;
         if (mPrepareSync) {
             ALOGV("signal application thread");
@@ -836,6 +888,9 @@
             mSignal.signal();
         }
         break;
+    case MEDIA_DRM_INFO:
+        ALOGV("MediaPlayer::notify() MEDIA_DRM_INFO(%d, %d, %d, %p)", msg, ext1, ext2, obj);
+        break;
     case MEDIA_PLAYBACK_COMPLETE:
         ALOGV("playback complete");
         if (mCurrentState == MEDIA_PLAYER_IDLE) {
@@ -869,14 +924,16 @@
         break;
     case MEDIA_SEEK_COMPLETE:
         ALOGV("Received seek complete");
-        if (mSeekPosition != mCurrentPosition) {
-            ALOGV("Executing queued seekTo(%d)", mSeekPosition);
+        if (mSeekPosition != mCurrentPosition || (mSeekMode != mCurrentSeekMode)) {
+            ALOGV("Executing queued seekTo(%d, %d)", mCurrentPosition, mCurrentSeekMode);
             mSeekPosition = -1;
-            seekTo_l(mCurrentPosition);
+            mSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
+            seekTo_l(mCurrentPosition, mCurrentSeekMode);
         }
         else {
             ALOGV("All seeks complete - return to regularly scheduled program");
             mCurrentPosition = mSeekPosition = -1;
+            mCurrentSeekMode = mSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
         }
         break;
     case MEDIA_BUFFERING_UPDATE:
@@ -934,4 +991,89 @@
     return mPlayer->setNextPlayer(next == NULL ? NULL : next->mPlayer);
 }
 
+VolumeShaper::Status MediaPlayer::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation)
+{
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == nullptr) {
+        return VolumeShaper::Status(NO_INIT);
+    }
+    VolumeShaper::Status status = mPlayer->applyVolumeShaper(configuration, operation);
+    return status;
+}
+
+sp<VolumeShaper::State> MediaPlayer::getVolumeShaperState(int id)
+{
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == nullptr) {
+        return nullptr;
+    }
+    return mPlayer->getVolumeShaperState(id);
+}
+
+// Modular DRM
+status_t MediaPlayer::prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId)
+{
+    // TODO change to ALOGV
+    ALOGD("prepareDrm: uuid: %p  drmSessionId: %p(%zu)", uuid,
+            drmSessionId.array(), drmSessionId.size());
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == NULL) {
+        return NO_INIT;
+    }
+
+    // Only allowed it in player's preparing/prepared state.
+    // We get here only if MEDIA_DRM_INFO has already arrived (e.g., prepare is half-way through or
+    // completed) so the state change to "prepared" might not have happened yet (e.g., buffering).
+    // Still, we can allow prepareDrm for the use case of being called in OnDrmInfoListener.
+    if (!(mCurrentState & (MEDIA_PLAYER_PREPARING | MEDIA_PLAYER_PREPARED))) {
+        ALOGE("prepareDrm is called in the wrong state (%d).", mCurrentState);
+        return INVALID_OPERATION;
+    }
+
+    if (drmSessionId.isEmpty()) {
+        ALOGE("prepareDrm: Unexpected. Can't proceed with crypto. Empty drmSessionId.");
+        return INVALID_OPERATION;
+    }
+
+    // Passing down to mediaserver mainly for creating the crypto
+    status_t status = mPlayer->prepareDrm(uuid, drmSessionId);
+    ALOGE_IF(status != OK, "prepareDrm: Failed at mediaserver with ret: %d", status);
+
+    // TODO change to ALOGV
+    ALOGD("prepareDrm: mediaserver::prepareDrm ret=%d", status);
+
+    return status;
+}
+
+status_t MediaPlayer::releaseDrm()
+{
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == NULL) {
+        return NO_INIT;
+    }
+
+    // Not allowing releaseDrm in an active/resumable state
+    if (mCurrentState & (MEDIA_PLAYER_STARTED |
+                         MEDIA_PLAYER_PAUSED |
+                         MEDIA_PLAYER_PLAYBACK_COMPLETE |
+                         MEDIA_PLAYER_STATE_ERROR)) {
+        ALOGE("releaseDrm Unexpected state %d. Can only be called in stopped/idle.", mCurrentState);
+        return INVALID_OPERATION;
+    }
+
+    status_t status = mPlayer->releaseDrm();
+    // TODO change to ALOGV
+    ALOGD("releaseDrm: mediaserver::releaseDrm ret: %d", status);
+    if (status != OK) {
+        ALOGE("releaseDrm: Failed at mediaserver with ret: %d", status);
+        // Overriding to OK so the client proceed with its own cleanup
+        // Client can't do more cleanup. mediaserver release its crypto at end of session anyway.
+        status = OK;
+    }
+
+    return status;
+}
+
 } // namespace android
diff --git a/media/libmedia/mediarecorder.cpp b/media/libmedia/mediarecorder.cpp
index 59c077a..4405930 100644
--- a/media/libmedia/mediarecorder.cpp
+++ b/media/libmedia/mediarecorder.cpp
@@ -256,6 +256,7 @@
         return INVALID_OPERATION;
     }
 
+
     status_t ret = mMediaRecorder->setAudioEncoder(ae);
     if (OK != ret) {
         ALOGV("setAudioEncoder failed: %d", ret);
@@ -266,9 +267,9 @@
     return ret;
 }
 
-status_t MediaRecorder::setOutputFile(int fd, int64_t offset, int64_t length)
+status_t MediaRecorder::setOutputFile(int fd)
 {
-    ALOGV("setOutputFile(%d, %" PRId64 ", %" PRId64 ")", fd, offset, length);
+    ALOGV("setOutputFile(%d)", fd);
     if (mMediaRecorder == NULL) {
         ALOGE("media recorder is not initialized yet");
         return INVALID_OPERATION;
@@ -288,14 +289,19 @@
     // the invalid file descritpor never gets invoked. This is to workaround
     // this issue by checking the file descriptor first before passing
     // it through binder call.
-    if (fd < 0) {
-        ALOGE("Invalid file descriptor: %d", fd);
+    int flags = fcntl(fd, F_GETFL);
+    if (flags == -1) {
+        ALOGE("Fail to get File Status Flags err: %s", strerror(errno));
+    }
+    // fd must be in read-write mode or write-only mode.
+    if ((flags & (O_RDWR | O_WRONLY)) == 0) {
+        ALOGE("File descriptor is not in read-write mode or write-only mode");
         return BAD_VALUE;
     }
 
-    status_t ret = mMediaRecorder->setOutputFile(fd, offset, length);
+    status_t ret = mMediaRecorder->setOutputFile(fd);
     if (OK != ret) {
-        ALOGV("setOutputFile failed: %d", ret);
+        ALOGE("setOutputFile failed: %d", ret);
         mCurrentState = MEDIA_RECORDER_ERROR;
         return ret;
     }
@@ -303,6 +309,37 @@
     return ret;
 }
 
+status_t MediaRecorder::setNextOutputFile(int fd)
+{
+    ALOGV("setNextOutputFile(%d)", fd);
+    if (mMediaRecorder == NULL) {
+        ALOGE("media recorder is not initialized yet");
+        return INVALID_OPERATION;
+    }
+
+    // It appears that if an invalid file descriptor is passed through
+    // binder calls, the server-side of the inter-process function call
+    // is skipped. As a result, the check at the server-side to catch
+    // the invalid file descritpor never gets invoked. This is to workaround
+    // this issue by checking the file descriptor first before passing
+    // it through binder call.
+    int flags = fcntl(fd, F_GETFL);
+    if (flags == -1) {
+        ALOGE("Fail to get File Status Flags err: %s", strerror(errno));
+    }
+    // fd must be in read-write mode or write-only mode.
+    if ((flags & (O_RDWR | O_WRONLY)) == 0) {
+        ALOGE("File descriptor is not in read-write mode or write-only mode");
+        return BAD_VALUE;
+    }
+
+    status_t ret = mMediaRecorder->setNextOutputFile(fd);
+    if (OK != ret) {
+        ALOGE("setNextOutputFile failed: %d", ret);
+    }
+    return ret;
+}
+
 status_t MediaRecorder::setVideoSize(int width, int height)
 {
     ALOGV("setVideoSize(%d, %d)", width, height);
@@ -361,7 +398,7 @@
         return INVALID_OPERATION;
     }
 
-    return mMediaRecorder->setInputSurface(surface->getBufferConsumer());
+    return mMediaRecorder->setInputSurface(surface);
 }
 
 status_t MediaRecorder::setVideoFrameRate(int frames_per_second)
@@ -476,6 +513,17 @@
     return ret;
 }
 
+status_t MediaRecorder::getMetrics(Parcel *reply) {
+
+    ALOGV("getMetrics");
+
+    status_t ret = mMediaRecorder->getMetrics(reply);
+    if (OK != ret) {
+        ALOGE("getMetrics failed: %d", ret);
+    }
+    return ret;
+}
+
 status_t MediaRecorder::start()
 {
     ALOGV("start");
diff --git a/media/libmedia/omx/1.0/WGraphicBufferSource.cpp b/media/libmedia/omx/1.0/WGraphicBufferSource.cpp
new file mode 100644
index 0000000..4c543fa
--- /dev/null
+++ b/media/libmedia/omx/1.0/WGraphicBufferSource.cpp
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/omx/1.0/WGraphicBufferSource.h>
+#include <media/omx/1.0/WOmxNode.h>
+#include <media/omx/1.0/Conversion.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+// LWGraphicBufferSource
+LWGraphicBufferSource::LWGraphicBufferSource(
+        sp<TGraphicBufferSource> const& base) : mBase(base) {
+}
+
+BnStatus LWGraphicBufferSource::configure(
+        const sp<IOMXNode>& omxNode, int32_t dataSpace) {
+    sp<IOmxNode> hOmxNode = omxNode->getHalInterface();
+    return toBinderStatus(mBase->configure(
+            hOmxNode == nullptr ? new TWOmxNode(omxNode) : hOmxNode,
+            toHardwareDataspace(dataSpace)));
+}
+
+BnStatus LWGraphicBufferSource::setSuspend(
+        bool suspend, int64_t timeUs) {
+    return toBinderStatus(mBase->setSuspend(suspend, timeUs));
+}
+
+BnStatus LWGraphicBufferSource::setRepeatPreviousFrameDelayUs(
+        int64_t repeatAfterUs) {
+    return toBinderStatus(mBase->setRepeatPreviousFrameDelayUs(repeatAfterUs));
+}
+
+BnStatus LWGraphicBufferSource::setMaxFps(float maxFps) {
+    return toBinderStatus(mBase->setMaxFps(maxFps));
+}
+
+BnStatus LWGraphicBufferSource::setTimeLapseConfig(
+        double fps, double captureFps) {
+    return toBinderStatus(mBase->setTimeLapseConfig(fps, captureFps));
+}
+
+BnStatus LWGraphicBufferSource::setStartTimeUs(
+        int64_t startTimeUs) {
+    return toBinderStatus(mBase->setStartTimeUs(startTimeUs));
+}
+
+BnStatus LWGraphicBufferSource::setStopTimeUs(
+        int64_t stopTimeUs) {
+    return toBinderStatus(mBase->setStopTimeUs(stopTimeUs));
+}
+
+BnStatus LWGraphicBufferSource::setColorAspects(
+        int32_t aspects) {
+    return toBinderStatus(mBase->setColorAspects(
+            toHardwareColorAspects(aspects)));
+}
+
+BnStatus LWGraphicBufferSource::setTimeOffsetUs(
+        int64_t timeOffsetsUs) {
+    return toBinderStatus(mBase->setTimeOffsetUs(timeOffsetsUs));
+}
+
+BnStatus LWGraphicBufferSource::signalEndOfInputStream() {
+    return toBinderStatus(mBase->signalEndOfInputStream());
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmedia/omx/1.0/WOmx.cpp b/media/libmedia/omx/1.0/WOmx.cpp
new file mode 100644
index 0000000..ce624fa
--- /dev/null
+++ b/media/libmedia/omx/1.0/WOmx.cpp
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gui/bufferqueue/1.0/H2BGraphicBufferProducer.h>
+#include <media/omx/1.0/WOmx.h>
+#include <media/omx/1.0/WOmxNode.h>
+#include <media/omx/1.0/WOmxObserver.h>
+#include <media/omx/1.0/WGraphicBufferSource.h>
+#include <media/omx/1.0/Conversion.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::graphics::bufferqueue::V1_0::utils::
+        H2BGraphicBufferProducer;
+typedef ::android::hardware::graphics::bufferqueue::V1_0::IGraphicBufferProducer
+        HGraphicBufferProducer;
+
+// LWOmx
+LWOmx::LWOmx(sp<IOmx> const& base) : mBase(base) {
+}
+
+status_t LWOmx::listNodes(List<IOMX::ComponentInfo>* list) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->listNodes(
+            [&fnStatus, list](
+                    Status status,
+                    hidl_vec<IOmx::ComponentInfo> const& nodeList) {
+                fnStatus = toStatusT(status);
+                list->clear();
+                for (size_t i = 0; i < nodeList.size(); ++i) {
+                    auto newInfo = list->insert(
+                            list->end(), IOMX::ComponentInfo());
+                    convertTo(&*newInfo, nodeList[i]);
+                }
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmx::allocateNode(
+        char const* name,
+        sp<IOMXObserver> const& observer,
+        sp<IOMXNode>* omxNode) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->allocateNode(
+            name, new TWOmxObserver(observer),
+            [&fnStatus, omxNode](Status status, sp<IOmxNode> const& node) {
+                fnStatus = toStatusT(status);
+                *omxNode = new LWOmxNode(node);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmx::createInputSurface(
+        sp<::android::IGraphicBufferProducer>* bufferProducer,
+        sp<::android::IGraphicBufferSource>* bufferSource) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->createInputSurface(
+            [&fnStatus, bufferProducer, bufferSource] (
+                    Status status,
+                    sp<HGraphicBufferProducer> const& tProducer,
+                    sp<IGraphicBufferSource> const& tSource) {
+                fnStatus = toStatusT(status);
+                *bufferProducer = new H2BGraphicBufferProducer(tProducer);
+                *bufferSource = new LWGraphicBufferSource(tSource);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmedia/omx/1.0/WOmxBufferSource.cpp b/media/libmedia/omx/1.0/WOmxBufferSource.cpp
new file mode 100644
index 0000000..7cca5bd
--- /dev/null
+++ b/media/libmedia/omx/1.0/WOmxBufferSource.cpp
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <utils/String8.h>
+
+#include <media/omx/1.0/WOmxBufferSource.h>
+#include <media/omx/1.0/Conversion.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+// LWOmxBufferSource
+LWOmxBufferSource::LWOmxBufferSource(sp<IOmxBufferSource> const& base) :
+    mBase(base) {
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxExecuting() {
+    return toBinderStatus(mBase->onOmxExecuting());
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxIdle() {
+    return toBinderStatus(mBase->onOmxIdle());
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxLoaded() {
+    return toBinderStatus(mBase->onOmxLoaded());
+}
+
+::android::binder::Status LWOmxBufferSource::onInputBufferAdded(
+        int32_t bufferId) {
+    return toBinderStatus(mBase->onInputBufferAdded(
+            static_cast<uint32_t>(bufferId)));
+}
+
+::android::binder::Status LWOmxBufferSource::onInputBufferEmptied(
+        int32_t bufferId, OMXFenceParcelable const& fenceParcel) {
+    hidl_handle fence;
+    native_handle_t* fenceNh;
+    if (!wrapAs(&fence, &fenceNh, fenceParcel)) {
+        return ::android::binder::Status::fromExceptionCode(
+                ::android::binder::Status::EX_BAD_PARCELABLE,
+                "Invalid fence");
+    }
+    ::android::binder::Status status = toBinderStatus(
+            mBase->onInputBufferEmptied(
+            static_cast<uint32_t>(bufferId), fence));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+
+// TWOmxBufferSource
+TWOmxBufferSource::TWOmxBufferSource(sp<IOMXBufferSource> const& base) :
+    mBase(base) {
+}
+
+Return<void> TWOmxBufferSource::onOmxExecuting() {
+    mBase->onOmxExecuting();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onOmxIdle() {
+    mBase->onOmxIdle();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onOmxLoaded() {
+    mBase->onOmxLoaded();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onInputBufferAdded(uint32_t buffer) {
+    mBase->onInputBufferAdded(int32_t(buffer));
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onInputBufferEmptied(
+        uint32_t buffer, hidl_handle const& fence) {
+    OMXFenceParcelable fenceParcelable;
+    if (!convertTo(&fenceParcelable, fence)) {
+        return Void();
+    }
+    mBase->onInputBufferEmptied(int32_t(buffer), fenceParcelable);
+    return Void();
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmedia/omx/1.0/WOmxNode.cpp b/media/libmedia/omx/1.0/WOmxNode.cpp
new file mode 100644
index 0000000..a3c4016
--- /dev/null
+++ b/media/libmedia/omx/1.0/WOmxNode.cpp
@@ -0,0 +1,428 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <algorithm>
+
+#include <media/omx/1.0/WOmxNode.h>
+#include <media/omx/1.0/WOmxBufferSource.h>
+#include <media/omx/1.0/Conversion.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::Void;
+
+// LWOmxNode
+status_t LWOmxNode::freeNode() {
+    return toStatusT(mBase->freeNode());
+}
+
+status_t LWOmxNode::sendCommand(
+        OMX_COMMANDTYPE cmd, OMX_S32 param) {
+    return toStatusT(mBase->sendCommand(
+            toRawCommandType(cmd), param));
+}
+
+status_t LWOmxNode::getParameter(
+        OMX_INDEXTYPE index, void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getParameter(
+            toRawIndexType(index),
+            tParams,
+            [&fnStatus, params, size](
+                    Status status, hidl_vec<uint8_t> const& outParams) {
+                fnStatus = toStatusT(status);
+                std::copy(
+                        outParams.data(),
+                        outParams.data() + outParams.size(),
+                        static_cast<uint8_t*>(params));
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setParameter(
+        OMX_INDEXTYPE index, const void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    return toStatusT(mBase->setParameter(
+            toRawIndexType(index), tParams));
+}
+
+status_t LWOmxNode::getConfig(
+        OMX_INDEXTYPE index, void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getConfig(
+            toRawIndexType(index),
+            tParams,
+            [&fnStatus, params, size](
+                    Status status, hidl_vec<uint8_t> const& outParams) {
+                fnStatus = toStatusT(status);
+                std::copy(
+                        outParams.data(),
+                        outParams.data() + size,
+                        static_cast<uint8_t*>(params));
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setConfig(
+        OMX_INDEXTYPE index, const void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    return toStatusT(mBase->setConfig(toRawIndexType(index), tParams));
+}
+
+status_t LWOmxNode::setPortMode(
+        OMX_U32 port_index, IOMX::PortMode mode) {
+    return toStatusT(mBase->setPortMode(port_index, toHardwarePortMode(mode)));
+}
+
+status_t LWOmxNode::prepareForAdaptivePlayback(
+        OMX_U32 portIndex, OMX_BOOL enable,
+        OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) {
+    return toStatusT(mBase->prepareForAdaptivePlayback(
+            portIndex, toRawBool(enable), maxFrameWidth, maxFrameHeight));
+}
+
+status_t LWOmxNode::configureVideoTunnelMode(
+        OMX_U32 portIndex, OMX_BOOL tunneled,
+        OMX_U32 audioHwSync, native_handle_t **sidebandHandle) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->configureVideoTunnelMode(
+            portIndex,
+            toRawBool(tunneled),
+            audioHwSync,
+            [&fnStatus, sidebandHandle](
+                    Status status, hidl_handle const& outSidebandHandle) {
+                fnStatus = toStatusT(status);
+                *sidebandHandle = outSidebandHandle == nullptr ?
+                        nullptr : native_handle_clone(outSidebandHandle);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::getGraphicBufferUsage(
+        OMX_U32 portIndex, OMX_U32* usage) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getGraphicBufferUsage(
+            portIndex,
+            [&fnStatus, usage](
+                    Status status, uint32_t outUsage) {
+                fnStatus = toStatusT(status);
+                *usage = outUsage;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setInputSurface(
+        const sp<IOMXBufferSource> &bufferSource) {
+    return toStatusT(mBase->setInputSurface(
+            new TWOmxBufferSource(bufferSource)));
+}
+
+status_t LWOmxNode::allocateSecureBuffer(
+        OMX_U32 portIndex, size_t size, buffer_id *buffer,
+        void **buffer_data, sp<NativeHandle> *native_handle) {
+    *buffer_data = nullptr;
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->allocateSecureBuffer(
+            portIndex,
+            static_cast<uint64_t>(size),
+            [&fnStatus, buffer, buffer_data, native_handle](
+                    Status status,
+                    uint32_t outBuffer,
+                    hidl_handle const& outNativeHandle) {
+                fnStatus = toStatusT(status);
+                *buffer = outBuffer;
+                *native_handle = NativeHandle::create(
+                        native_handle_clone(outNativeHandle), true);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::useBuffer(
+        OMX_U32 portIndex, const OMXBuffer &omxBuffer, buffer_id *buffer) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->useBuffer(
+            portIndex,
+            codecBuffer,
+            [&fnStatus, buffer](Status status, uint32_t outBuffer) {
+                fnStatus = toStatusT(status);
+                *buffer = outBuffer;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::freeBuffer(
+        OMX_U32 portIndex, buffer_id buffer) {
+    return toStatusT(mBase->freeBuffer(portIndex, buffer));
+}
+
+status_t LWOmxNode::fillBuffer(
+        buffer_id buffer, const OMXBuffer &omxBuffer, int fenceFd) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    native_handle_t* fenceNh = native_handle_create_from_fd(fenceFd);
+    if (!fenceNh) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->fillBuffer(
+            buffer, codecBuffer, fenceNh));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+
+status_t LWOmxNode::emptyBuffer(
+        buffer_id buffer, const OMXBuffer &omxBuffer,
+        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    native_handle_t* fenceNh = native_handle_create_from_fd(fenceFd);
+    if (!fenceNh) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->emptyBuffer(
+            buffer,
+            codecBuffer,
+            flags,
+            toRawTicks(timestamp),
+            fenceNh));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+status_t LWOmxNode::getExtensionIndex(
+        const char *parameter_name,
+        OMX_INDEXTYPE *index) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getExtensionIndex(
+            hidl_string(parameter_name),
+            [&fnStatus, index](Status status, uint32_t outIndex) {
+                fnStatus = toStatusT(status);
+                *index = toEnumIndexType(outIndex);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::dispatchMessage(const omx_message &lMsg) {
+    Message tMsg;
+    native_handle_t* nh;
+    if (!wrapAs(&tMsg, &nh, lMsg)) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->dispatchMessage(tMsg));
+    native_handle_close(nh);
+    native_handle_delete(nh);
+    return status;
+}
+
+// TWOmxNode
+TWOmxNode::TWOmxNode(sp<IOMXNode> const& base) : mBase(base) {
+}
+
+Return<Status> TWOmxNode::freeNode() {
+    return toStatus(mBase->freeNode());
+}
+
+Return<Status> TWOmxNode::sendCommand(uint32_t cmd, int32_t param) {
+    return toStatus(mBase->sendCommand(toEnumCommandType(cmd), param));
+}
+
+Return<void> TWOmxNode::getParameter(
+        uint32_t index, hidl_vec<uint8_t> const& inParams,
+        getParameter_cb _hidl_cb) {
+    hidl_vec<uint8_t> params(inParams);
+    Status status = toStatus(mBase->getParameter(
+            toEnumIndexType(index),
+            static_cast<void*>(params.data()),
+            params.size()));
+    _hidl_cb(status, params);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setParameter(
+        uint32_t index, hidl_vec<uint8_t> const& inParams) {
+    hidl_vec<uint8_t> params(inParams);
+    return toStatus(mBase->setParameter(
+            toEnumIndexType(index),
+            static_cast<void const*>(params.data()),
+            params.size()));
+}
+
+Return<void> TWOmxNode::getConfig(
+        uint32_t index, const hidl_vec<uint8_t>& inConfig,
+        getConfig_cb _hidl_cb) {
+    hidl_vec<uint8_t> config(inConfig);
+    Status status = toStatus(mBase->getConfig(
+            toEnumIndexType(index),
+            static_cast<void*>(config.data()),
+            config.size()));
+    _hidl_cb(status, config);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setConfig(
+        uint32_t index, const hidl_vec<uint8_t>& inConfig) {
+    hidl_vec<uint8_t> config(inConfig);
+    return toStatus(mBase->setConfig(
+            toEnumIndexType(index),
+            static_cast<void const*>(config.data()),
+            config.size()));
+}
+
+Return<Status> TWOmxNode::setPortMode(uint32_t portIndex, PortMode mode) {
+    return toStatus(mBase->setPortMode(portIndex, toIOMXPortMode(mode)));
+}
+
+Return<Status> TWOmxNode::prepareForAdaptivePlayback(
+        uint32_t portIndex, bool enable,
+        uint32_t maxFrameWidth, uint32_t maxFrameHeight) {
+    return toStatus(mBase->prepareForAdaptivePlayback(
+            portIndex,
+            toEnumBool(enable),
+            maxFrameWidth,
+            maxFrameHeight));
+}
+
+Return<void> TWOmxNode::configureVideoTunnelMode(
+        uint32_t portIndex, bool tunneled, uint32_t audioHwSync,
+        configureVideoTunnelMode_cb _hidl_cb) {
+    native_handle_t* sidebandHandle = nullptr;
+    Status status = toStatus(mBase->configureVideoTunnelMode(
+            portIndex,
+            toEnumBool(tunneled),
+            audioHwSync,
+            &sidebandHandle));
+    _hidl_cb(status, hidl_handle(sidebandHandle));
+    return Void();
+}
+
+Return<void> TWOmxNode::getGraphicBufferUsage(
+        uint32_t portIndex, getGraphicBufferUsage_cb _hidl_cb) {
+    OMX_U32 usage;
+    Status status = toStatus(mBase->getGraphicBufferUsage(
+            portIndex, &usage));
+    _hidl_cb(status, usage);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setInputSurface(
+        const sp<IOmxBufferSource>& bufferSource) {
+    return toStatus(mBase->setInputSurface(new LWOmxBufferSource(
+            bufferSource)));
+}
+
+Return<void> TWOmxNode::allocateSecureBuffer(
+        uint32_t portIndex, uint64_t size,
+        allocateSecureBuffer_cb _hidl_cb) {
+    IOMX::buffer_id buffer;
+    void* bufferData;
+    sp<NativeHandle> nativeHandle;
+    Status status = toStatus(mBase->allocateSecureBuffer(
+            portIndex,
+            static_cast<size_t>(size),
+            &buffer,
+            &bufferData,
+            &nativeHandle));
+    _hidl_cb(status, buffer, nativeHandle == nullptr ?
+            nullptr : nativeHandle->handle());
+    return Void();
+}
+
+Return<void> TWOmxNode::useBuffer(
+        uint32_t portIndex, const CodecBuffer& codecBuffer,
+        useBuffer_cb _hidl_cb) {
+    IOMX::buffer_id buffer;
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        _hidl_cb(Status::BAD_VALUE, 0);
+        return Void();
+    }
+    Status status = toStatus(mBase->useBuffer(
+            portIndex, omxBuffer, &buffer));
+    _hidl_cb(status, buffer);
+    return Void();
+}
+
+Return<Status> TWOmxNode::freeBuffer(uint32_t portIndex, uint32_t buffer) {
+    return toStatus(mBase->freeBuffer(portIndex, buffer));
+}
+
+Return<Status> TWOmxNode::fillBuffer(
+        uint32_t buffer, const CodecBuffer& codecBuffer,
+        const hidl_handle& fence) {
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->fillBuffer(
+            buffer,
+            omxBuffer,
+            dup(native_handle_read_fd(fence))));
+}
+
+Return<Status> TWOmxNode::emptyBuffer(
+        uint32_t buffer, const CodecBuffer& codecBuffer, uint32_t flags,
+        uint64_t timestampUs, const hidl_handle& fence) {
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->emptyBuffer(
+            buffer,
+            omxBuffer,
+            flags,
+            toOMXTicks(timestampUs),
+            dup(native_handle_read_fd(fence))));
+}
+
+Return<void> TWOmxNode::getExtensionIndex(
+        const hidl_string& parameterName,
+        getExtensionIndex_cb _hidl_cb) {
+    OMX_INDEXTYPE index;
+    Status status = toStatus(mBase->getExtensionIndex(
+            parameterName.c_str(), &index));
+    _hidl_cb(status, toRawIndexType(index));
+    return Void();
+}
+
+Return<Status> TWOmxNode::dispatchMessage(const Message& tMsg) {
+    omx_message lMsg;
+    if (!convertTo(&lMsg, tMsg)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->dispatchMessage(lMsg));
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmedia/omx/1.0/WOmxObserver.cpp b/media/libmedia/omx/1.0/WOmxObserver.cpp
new file mode 100644
index 0000000..fa0407f
--- /dev/null
+++ b/media/libmedia/omx/1.0/WOmxObserver.cpp
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "WOmxObserver-utils"
+
+#include <vector>
+
+#include <utils/Log.h>
+#include <cutils/native_handle.h>
+#include <binder/Binder.h>
+
+#include <media/omx/1.0/WOmxObserver.h>
+#include <media/omx/1.0/Conversion.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+// LWOmxObserver
+LWOmxObserver::LWOmxObserver(sp<IOmxObserver> const& base) : mBase(base) {
+}
+
+void LWOmxObserver::onMessages(std::list<omx_message> const& lMessages) {
+    hidl_vec<Message> tMessages;
+    std::vector<native_handle_t*> handles(lMessages.size());
+    tMessages.resize(lMessages.size());
+    size_t i = 0;
+    for (auto const& message : lMessages) {
+        wrapAs(&tMessages[i], &handles[i], message);
+        ++i;
+    }
+    auto transResult = mBase->onMessages(tMessages);
+    if (!transResult.isOk()) {
+        ALOGE("LWOmxObserver::onMessages - Transaction failed");
+    }
+    for (auto& handle : handles) {
+        native_handle_close(handle);
+        native_handle_delete(handle);
+    }
+}
+
+// TWOmxObserver
+TWOmxObserver::TWOmxObserver(sp<IOMXObserver> const& base) : mBase(base) {
+}
+
+Return<void> TWOmxObserver::onMessages(const hidl_vec<Message>& tMessages) {
+    std::list<omx_message> lMessages;
+    for (size_t i = 0; i < tMessages.size(); ++i) {
+        lMessages.push_back(omx_message{});
+        convertTo(&lMessages.back(), tMessages[i]);
+    }
+    mBase->onMessages(lMessages);
+    return Return<void>();
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmediametrics/Android.mk b/media/libmediametrics/Android.mk
new file mode 100644
index 0000000..f8c4bb3
--- /dev/null
+++ b/media/libmediametrics/Android.mk
@@ -0,0 +1,34 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES += \
+    IMediaAnalyticsService.cpp \
+    MediaAnalyticsItem.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+        liblog libcutils libutils libbinder \
+        libstagefright_foundation \
+        libbase \
+
+LOCAL_MODULE:= libmediametrics
+
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+
+LOCAL_C_INCLUDES := \
+    $(TOP)/system/libhidl/base/include \
+    $(TOP)/frameworks/native/include/media/openmax \
+    $(TOP)/frameworks/av/include/media/ \
+    $(TOP)/frameworks/av/media/libmedia/aidl \
+    $(TOP)/frameworks/av/include \
+    $(TOP)/frameworks/native/include \
+    $(call include-path-for, audio-utils)
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := \
+    frameworks/av/include/media \
+
+LOCAL_CFLAGS += -Werror -Wno-error=deprecated-declarations -Wall
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libmediametrics/IMediaAnalyticsService.cpp b/media/libmediametrics/IMediaAnalyticsService.cpp
new file mode 100644
index 0000000..68bafe1
--- /dev/null
+++ b/media/libmediametrics/IMediaAnalyticsService.cpp
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "MediaAnalytics"
+
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <binder/IPCThreadState.h>
+
+#include <utils/Errors.h>  // for status_t
+#include <utils/List.h>
+#include <utils/Log.h>
+#include <utils/String8.h>
+
+#include <media/MediaAnalyticsItem.h>
+#include <media/IMediaAnalyticsService.h>
+
+#define DEBUGGING               0
+#define DEBUGGING_FLOW          0
+#define DEBUGGING_RETURNS       0
+
+namespace android {
+
+enum {
+    GENERATE_UNIQUE_SESSIONID = IBinder::FIRST_CALL_TRANSACTION,
+    SUBMIT_ITEM,
+};
+
+class BpMediaAnalyticsService: public BpInterface<IMediaAnalyticsService>
+{
+public:
+    explicit BpMediaAnalyticsService(const sp<IBinder>& impl)
+        : BpInterface<IMediaAnalyticsService>(impl)
+    {
+    }
+
+    virtual MediaAnalyticsItem::SessionID_t generateUniqueSessionID() {
+        Parcel data, reply;
+        status_t err;
+        MediaAnalyticsItem::SessionID_t sessionid =
+                        MediaAnalyticsItem::SessionIDInvalid;
+
+        data.writeInterfaceToken(IMediaAnalyticsService::getInterfaceDescriptor());
+        err = remote()->transact(GENERATE_UNIQUE_SESSIONID, data, &reply);
+        if (err != NO_ERROR) {
+            ALOGW("bad response from service");
+            return MediaAnalyticsItem::SessionIDInvalid;
+        }
+        sessionid = reply.readInt64();
+        if (DEBUGGING_RETURNS) {
+            ALOGD("the caller gets a sessionid of %" PRId64 " back", sessionid);
+        }
+        return sessionid;
+    }
+
+    virtual MediaAnalyticsItem::SessionID_t submit(MediaAnalyticsItem *item, bool forcenew)
+    {
+        // have this record submit itself
+        // this will be a binder call with appropriate timing
+        // return value is the uuid that the system generated for it.
+        // the return value 0 and -1 are reserved.
+        // -1 to indicate that there was a problem recording...
+
+        Parcel data, reply;
+        status_t err;
+
+        if (item == NULL) {
+                return MediaAnalyticsItem::SessionIDInvalid;
+        }
+
+        data.writeInterfaceToken(IMediaAnalyticsService::getInterfaceDescriptor());
+        if(DEBUGGING_FLOW) {
+            ALOGD("client offers record: %s", item->toString().c_str());
+        }
+        data.writeBool(forcenew);
+        item->writeToParcel(&data);
+
+        err = remote()->transact(SUBMIT_ITEM, data, &reply);
+        if (err != NO_ERROR) {
+            return MediaAnalyticsItem::SessionIDInvalid;
+        }
+
+        // get an answer out of 'reply'
+        int64_t sessionid = reply.readInt64();
+        if (DEBUGGING_RETURNS) {
+            ALOGD("the caller gets sessionid=%" PRId64 "", sessionid);
+        }
+        return sessionid;
+    }
+
+};
+
+IMPLEMENT_META_INTERFACE(MediaAnalyticsService, "android.media.IMediaAnalyticsService");
+
+// ----------------------------------------------------------------------
+
+status_t BnMediaAnalyticsService::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+
+
+    // get calling pid/tid
+    IPCThreadState *ipc = IPCThreadState::self();
+    int clientPid = ipc->getCallingPid();
+    // permission checking
+
+    if(DEBUGGING_FLOW) {
+        ALOGD("running in service, code %d, pid %d; called from pid %d",
+            code, getpid(), clientPid);
+    }
+
+    switch (code) {
+
+        case GENERATE_UNIQUE_SESSIONID: {
+            CHECK_INTERFACE(IMediaAnalyticsService, data, reply);
+
+            MediaAnalyticsItem::SessionID_t sessionid = generateUniqueSessionID();
+            reply->writeInt64(sessionid);
+
+            return NO_ERROR;
+        } break;
+
+        case SUBMIT_ITEM: {
+            CHECK_INTERFACE(IMediaAnalyticsService, data, reply);
+
+            bool forcenew;
+            MediaAnalyticsItem *item = new MediaAnalyticsItem;
+
+            data.readBool(&forcenew);
+            item->readFromParcel(data);
+
+            item->setPid(clientPid);
+
+            // submit() takes over ownership of 'item'
+            MediaAnalyticsItem::SessionID_t sessionid = submit(item, forcenew);
+            reply->writeInt64(sessionid);
+
+            return NO_ERROR;
+        } break;
+
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libmediametrics/MediaAnalyticsItem.cpp b/media/libmediametrics/MediaAnalyticsItem.cpp
new file mode 100644
index 0000000..43881b3
--- /dev/null
+++ b/media/libmediametrics/MediaAnalyticsItem.cpp
@@ -0,0 +1,886 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#undef LOG_TAG
+#define LOG_TAG "MediaAnalyticsItem"
+
+#include <inttypes.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <utils/Errors.h>
+#include <utils/Log.h>
+#include <utils/Mutex.h>
+#include <utils/SortedVector.h>
+#include <utils/threads.h>
+
+#include <media/stagefright/foundation/AString.h>
+
+#include <binder/IServiceManager.h>
+#include <media/IMediaAnalyticsService.h>
+#include <media/MediaAnalyticsItem.h>
+#include <private/android_filesystem_config.h>
+
+namespace android {
+
+#define DEBUG_SERVICEACCESS     0
+#define DEBUG_API               0
+#define DEBUG_ALLOCATIONS       0
+
+// after this many failed attempts, we stop trying [from this process] and just say that
+// the service is off.
+#define SVC_TRIES               2
+
+// the few universal keys we have
+const MediaAnalyticsItem::Key MediaAnalyticsItem::kKeyAny  = "any";
+const MediaAnalyticsItem::Key MediaAnalyticsItem::kKeyNone  = "none";
+
+const char * const MediaAnalyticsItem::EnabledProperty  = "media.metrics.enabled";
+const char * const MediaAnalyticsItem::EnabledPropertyPersist  = "persist.media.metrics.enabled";
+const int MediaAnalyticsItem::EnabledProperty_default  = 1;
+
+
+// access functions for the class
+MediaAnalyticsItem::MediaAnalyticsItem()
+    : mPid(-1),
+      mUid(-1),
+      mSessionID(MediaAnalyticsItem::SessionIDNone),
+      mTimestamp(0),
+      mFinalized(0),
+      mPropCount(0), mPropSize(0), mProps(NULL)
+{
+    mKey = MediaAnalyticsItem::kKeyNone;
+}
+
+MediaAnalyticsItem::MediaAnalyticsItem(MediaAnalyticsItem::Key key)
+    : mPid(-1),
+      mUid(-1),
+      mSessionID(MediaAnalyticsItem::SessionIDNone),
+      mTimestamp(0),
+      mFinalized(0),
+      mPropCount(0), mPropSize(0), mProps(NULL)
+{
+    if (DEBUG_ALLOCATIONS) {
+        ALOGD("Allocate MediaAnalyticsItem @ %p", this);
+    }
+    mKey = key;
+}
+
+MediaAnalyticsItem::~MediaAnalyticsItem() {
+    if (DEBUG_ALLOCATIONS) {
+        ALOGD("Destroy  MediaAnalyticsItem @ %p", this);
+    }
+    clear();
+}
+
+void MediaAnalyticsItem::clear() {
+
+    // clean allocated storage from key
+    mKey.clear();
+
+    // clean various major parameters
+    mSessionID = MediaAnalyticsItem::SessionIDNone;
+
+    // clean attributes
+    // contents of the attributes
+    for (size_t i = 0 ; i < mPropSize; i++ ) {
+        clearProp(&mProps[i]);
+    }
+    // the attribute records themselves
+    if (mProps != NULL) {
+        free(mProps);
+        mProps = NULL;
+    }
+    mPropSize = 0;
+    mPropCount = 0;
+
+    return;
+}
+
+// make a deep copy of myself
+MediaAnalyticsItem *MediaAnalyticsItem::dup() {
+    MediaAnalyticsItem *dst = new MediaAnalyticsItem(this->mKey);
+
+    if (dst != NULL) {
+        // key as part of constructor
+        dst->mPid = this->mPid;
+        dst->mUid = this->mUid;
+        dst->mSessionID = this->mSessionID;
+        dst->mTimestamp = this->mTimestamp;
+        dst->mFinalized = this->mFinalized;
+
+        // properties aka attributes
+        dst->growProps(this->mPropCount);
+        for(size_t i=0;i<mPropCount;i++) {
+            copyProp(&dst->mProps[i], &this->mProps[i]);
+        }
+        dst->mPropCount = this->mPropCount;
+    }
+
+    return dst;
+}
+
+// so clients can send intermediate values to be overlaid later
+MediaAnalyticsItem &MediaAnalyticsItem::setFinalized(bool value) {
+    mFinalized = value;
+    return *this;
+}
+
+bool MediaAnalyticsItem::getFinalized() const {
+    return mFinalized;
+}
+
+MediaAnalyticsItem &MediaAnalyticsItem::setSessionID(MediaAnalyticsItem::SessionID_t id) {
+    mSessionID = id;
+    return *this;
+}
+
+MediaAnalyticsItem::SessionID_t MediaAnalyticsItem::getSessionID() const {
+    return mSessionID;
+}
+
+MediaAnalyticsItem::SessionID_t MediaAnalyticsItem::generateSessionID() {
+
+    if (mSessionID == SessionIDNone) {
+        // get one from the server
+        MediaAnalyticsItem::SessionID_t newid = SessionIDNone;
+        sp<IMediaAnalyticsService> svc = getInstance();
+        if (svc != NULL) {
+            newid = svc->generateUniqueSessionID();
+        }
+        mSessionID = newid;
+    }
+
+    return mSessionID;
+}
+
+MediaAnalyticsItem &MediaAnalyticsItem::clearSessionID() {
+    mSessionID = MediaAnalyticsItem::SessionIDNone;
+    return *this;
+}
+
+MediaAnalyticsItem &MediaAnalyticsItem::setTimestamp(nsecs_t ts) {
+    mTimestamp = ts;
+    return *this;
+}
+
+nsecs_t MediaAnalyticsItem::getTimestamp() const {
+    return mTimestamp;
+}
+
+MediaAnalyticsItem &MediaAnalyticsItem::setPid(pid_t pid) {
+    mPid = pid;
+    return *this;
+}
+
+pid_t MediaAnalyticsItem::getPid() const {
+    return mPid;
+}
+
+MediaAnalyticsItem &MediaAnalyticsItem::setUid(uid_t uid) {
+    mUid = uid;
+    return *this;
+}
+
+uid_t MediaAnalyticsItem::getUid() const {
+    return mUid;
+}
+
+// this key is for the overall record -- "codec", "player", "drm", etc
+MediaAnalyticsItem &MediaAnalyticsItem::setKey(MediaAnalyticsItem::Key key) {
+    mKey = key;
+    return *this;
+}
+
+MediaAnalyticsItem::Key MediaAnalyticsItem::getKey() {
+    return mKey;
+}
+
+// number of attributes we have in this record
+int32_t MediaAnalyticsItem::count() const {
+    return mPropCount;
+}
+
+// find the proper entry in the list
+size_t MediaAnalyticsItem::findPropIndex(const char *name, size_t len)
+{
+    size_t i = 0;
+    for (; i < mPropCount; i++) {
+        Prop *prop = &mProps[i];
+        if (prop->mNameLen != len) {
+            continue;
+        }
+        if (memcmp(name, prop->mName, len) == 0) {
+            break;
+        }
+    }
+    return i;
+}
+
+MediaAnalyticsItem::Prop *MediaAnalyticsItem::findProp(const char *name) {
+    size_t len = strlen(name);
+    size_t i = findPropIndex(name, len);
+    if (i < mPropCount) {
+        return &mProps[i];
+    }
+    return NULL;
+}
+
+void MediaAnalyticsItem::Prop::setName(const char *name, size_t len) {
+    mNameLen = len;
+    mName = (const char *) malloc(len+1);
+    memcpy ((void *)mName, name, len+1);
+}
+
+// used only as part of a storing operation
+MediaAnalyticsItem::Prop *MediaAnalyticsItem::allocateProp(const char *name) {
+    size_t len = strlen(name);
+    size_t i = findPropIndex(name, len);
+    Prop *prop;
+
+    if (i < mPropCount) {
+        prop = &mProps[i];
+    } else {
+        if (i == mPropSize) {
+            growProps();
+            // XXX: verify success
+        }
+        i = mPropCount++;
+        prop = &mProps[i];
+        prop->setName(name, len);
+    }
+
+    return prop;
+}
+
+// set the values
+void MediaAnalyticsItem::setInt32(MediaAnalyticsItem::Attr name, int32_t value) {
+    Prop *prop = allocateProp(name);
+    prop->mType = kTypeInt32;
+    prop->u.int32Value = value;
+}
+
+void MediaAnalyticsItem::setInt64(MediaAnalyticsItem::Attr name, int64_t value) {
+    Prop *prop = allocateProp(name);
+    prop->mType = kTypeInt64;
+    prop->u.int64Value = value;
+}
+
+void MediaAnalyticsItem::setDouble(MediaAnalyticsItem::Attr name, double value) {
+    Prop *prop = allocateProp(name);
+    prop->mType = kTypeDouble;
+    prop->u.doubleValue = value;
+}
+
+void MediaAnalyticsItem::setCString(MediaAnalyticsItem::Attr name, const char *value) {
+
+    Prop *prop = allocateProp(name);
+    // any old value will be gone
+    prop->mType = kTypeCString;
+    prop->u.CStringValue = strdup(value);
+}
+
+void MediaAnalyticsItem::setRate(MediaAnalyticsItem::Attr name, int64_t count, int64_t duration) {
+    Prop *prop = allocateProp(name);
+    prop->mType = kTypeRate;
+    prop->u.rate.count = count;
+    prop->u.rate.duration = duration;
+}
+
+
+// find/add/set fused into a single operation
+void MediaAnalyticsItem::addInt32(MediaAnalyticsItem::Attr name, int32_t value) {
+    Prop *prop = allocateProp(name);
+    switch (prop->mType) {
+        case kTypeInt32:
+            prop->u.int32Value += value;
+            break;
+        default:
+            clearPropValue(prop);
+            prop->mType = kTypeInt32;
+            prop->u.int32Value = value;
+            break;
+    }
+}
+
+void MediaAnalyticsItem::addInt64(MediaAnalyticsItem::Attr name, int64_t value) {
+    Prop *prop = allocateProp(name);
+    switch (prop->mType) {
+        case kTypeInt64:
+            prop->u.int64Value += value;
+            break;
+        default:
+            clearPropValue(prop);
+            prop->mType = kTypeInt64;
+            prop->u.int64Value = value;
+            break;
+    }
+}
+
+void MediaAnalyticsItem::addRate(MediaAnalyticsItem::Attr name, int64_t count, int64_t duration) {
+    Prop *prop = allocateProp(name);
+    switch (prop->mType) {
+        case kTypeRate:
+            prop->u.rate.count += count;
+            prop->u.rate.duration += duration;
+            break;
+        default:
+            clearPropValue(prop);
+            prop->mType = kTypeRate;
+            prop->u.rate.count = count;
+            prop->u.rate.duration = duration;
+            break;
+    }
+}
+
+void MediaAnalyticsItem::addDouble(MediaAnalyticsItem::Attr name, double value) {
+    Prop *prop = allocateProp(name);
+    switch (prop->mType) {
+        case kTypeDouble:
+            prop->u.doubleValue += value;
+            break;
+        default:
+            clearPropValue(prop);
+            prop->mType = kTypeDouble;
+            prop->u.doubleValue = value;
+            break;
+    }
+}
+
+// find & extract values
+bool MediaAnalyticsItem::getInt32(MediaAnalyticsItem::Attr name, int32_t *value) {
+    Prop *prop = findProp(name);
+    if (prop == NULL || prop->mType != kTypeInt32) {
+        return false;
+    }
+    if (value != NULL) {
+        *value = prop->u.int32Value;
+    }
+    return true;
+}
+
+bool MediaAnalyticsItem::getInt64(MediaAnalyticsItem::Attr name, int64_t *value) {
+    Prop *prop = findProp(name);
+    if (prop == NULL || prop->mType != kTypeInt64) {
+        return false;
+    }
+    if (value != NULL) {
+        *value = prop->u.int64Value;
+    }
+    return true;
+}
+
+bool MediaAnalyticsItem::getRate(MediaAnalyticsItem::Attr name, int64_t *count, int64_t *duration, double *rate) {
+    Prop *prop = findProp(name);
+    if (prop == NULL || prop->mType != kTypeRate) {
+        return false;
+    }
+    if (count != NULL) {
+        *count = prop->u.rate.count;
+    }
+    if (duration != NULL) {
+        *duration = prop->u.rate.duration;
+    }
+    if (rate != NULL) {
+        double r = 0.0;
+        if (prop->u.rate.duration != 0) {
+            r = prop->u.rate.count / (double) prop->u.rate.duration;
+        }
+        *rate = r;
+    }
+    return true;
+}
+
+bool MediaAnalyticsItem::getDouble(MediaAnalyticsItem::Attr name, double *value) {
+    Prop *prop = findProp(name);
+    if (prop == NULL || prop->mType != kTypeDouble) {
+        return false;
+    }
+    if (value != NULL) {
+        *value = prop->u.doubleValue;
+    }
+    return true;
+}
+
+// caller responsible for the returned string
+bool MediaAnalyticsItem::getCString(MediaAnalyticsItem::Attr name, char **value) {
+    Prop *prop = findProp(name);
+    if (prop == NULL || prop->mType != kTypeDouble) {
+        return false;
+    }
+    if (value != NULL) {
+        *value = strdup(prop->u.CStringValue);
+    }
+    return true;
+}
+
+// remove indicated keys and their values
+// return value is # keys removed
+int32_t MediaAnalyticsItem::filter(int n, MediaAnalyticsItem::Attr attrs[]) {
+    int zapped = 0;
+    if (attrs == NULL || n <= 0) {
+        return -1;
+    }
+    for (ssize_t i = 0 ; i < n ;  i++) {
+        const char *name = attrs[i];
+        size_t len = strlen(name);
+        size_t j = findPropIndex(name, len);
+        if (j >= mPropCount) {
+            // not there
+            continue;
+        } else if (j+1 == mPropCount) {
+            // last one, shorten
+            zapped++;
+            clearProp(&mProps[j]);
+            mPropCount--;
+        } else {
+            // in the middle, bring last one down and shorten
+            zapped++;
+            clearProp(&mProps[j]);
+            mProps[j] = mProps[mPropCount-1];
+            mPropCount--;
+        }
+    }
+    return zapped;
+}
+
+// remove any keys NOT in the provided list
+// return value is # keys removed
+int32_t MediaAnalyticsItem::filterNot(int n, MediaAnalyticsItem::Attr attrs[]) {
+    int zapped = 0;
+    if (attrs == NULL || n <= 0) {
+        return -1;
+    }
+    for (ssize_t i = mPropCount-1 ; i >=0 ;  i--) {
+        Prop *prop = &mProps[i];
+        for (ssize_t j = 0; j < n ; j++) {
+            if (strcmp(prop->mName, attrs[j]) == 0) {
+                clearProp(prop);
+                zapped++;
+                if (i != (ssize_t)(mPropCount-1)) {
+                    *prop = mProps[mPropCount-1];
+                }
+                initProp(&mProps[mPropCount-1]);
+                mPropCount--;
+                break;
+            }
+        }
+    }
+    return zapped;
+}
+
+// remove a single key
+// return value is 0 (not found) or 1 (found and removed)
+int32_t MediaAnalyticsItem::filter(MediaAnalyticsItem::Attr name) {
+    return filter(1, &name);
+}
+
+// handle individual items/properties stored within the class
+//
+
+void MediaAnalyticsItem::initProp(Prop *prop) {
+    if (prop != NULL) {
+        prop->mName = NULL;
+        prop->mNameLen = 0;
+
+        prop->mType = kTypeNone;
+    }
+}
+
+void MediaAnalyticsItem::clearProp(Prop *prop)
+{
+    if (prop != NULL) {
+        if (prop->mName != NULL) {
+            free((void *)prop->mName);
+            prop->mName = NULL;
+            prop->mNameLen = 0;
+        }
+
+        clearPropValue(prop);
+    }
+}
+
+void MediaAnalyticsItem::clearPropValue(Prop *prop)
+{
+    if (prop != NULL) {
+        if (prop->mType == kTypeCString && prop->u.CStringValue != NULL) {
+            free(prop->u.CStringValue);
+            prop->u.CStringValue = NULL;
+        }
+        prop->mType = kTypeNone;
+    }
+}
+
+void MediaAnalyticsItem::copyProp(Prop *dst, const Prop *src)
+{
+    // get rid of any pointers in the dst
+    clearProp(dst);
+
+    *dst = *src;
+
+    // fix any pointers that we blindly copied, so we have our own copies
+    if (dst->mName) {
+        void *p =  malloc(dst->mNameLen + 1);
+        memcpy (p, src->mName, dst->mNameLen + 1);
+        dst->mName = (const char *) p;
+    }
+    if (dst->mType == kTypeCString) {
+        dst->u.CStringValue = strdup(src->u.CStringValue);
+    }
+}
+
+void MediaAnalyticsItem::growProps(int increment)
+{
+    if (increment <= 0) {
+        increment = kGrowProps;
+    }
+    int nsize = mPropSize + increment;
+    Prop *ni = (Prop *)realloc(mProps, sizeof(Prop) * nsize);
+
+    if (ni != NULL) {
+        for (int i = mPropSize; i < nsize; i++) {
+            initProp(&ni[i]);
+        }
+        mProps = ni;
+        mPropSize = nsize;
+    }
+}
+
+// Parcel / serialize things for binder calls
+//
+
+int32_t MediaAnalyticsItem::readFromParcel(const Parcel& data) {
+    // into 'this' object
+    // .. we make a copy of the string to put away.
+    mKey = data.readCString();
+    mSessionID = data.readInt64();
+    mFinalized = data.readInt32();
+    mTimestamp = data.readInt64();
+
+    int count = data.readInt32();
+    for (int i = 0; i < count ; i++) {
+            MediaAnalyticsItem::Attr attr = data.readCString();
+            int32_t ztype = data.readInt32();
+                switch (ztype) {
+                    case MediaAnalyticsItem::kTypeInt32:
+                            setInt32(attr, data.readInt32());
+                            break;
+                    case MediaAnalyticsItem::kTypeInt64:
+                            setInt64(attr, data.readInt64());
+                            break;
+                    case MediaAnalyticsItem::kTypeDouble:
+                            setDouble(attr, data.readDouble());
+                            break;
+                    case MediaAnalyticsItem::kTypeCString:
+                            setCString(attr, data.readCString());
+                            break;
+                    case MediaAnalyticsItem::kTypeRate:
+                            {
+                                int64_t count = data.readInt64();
+                                int64_t duration = data.readInt64();
+                                setRate(attr, count, duration);
+                            }
+                            break;
+                    default:
+                            ALOGE("reading bad item type: %d, idx %d",
+                                  ztype, i);
+                            return -1;
+                }
+    }
+
+    return 0;
+}
+
+int32_t MediaAnalyticsItem::writeToParcel(Parcel *data) {
+    if (data == NULL) return -1;
+
+
+    data->writeCString(mKey.c_str());
+    data->writeInt64(mSessionID);
+    data->writeInt32(mFinalized);
+    data->writeInt64(mTimestamp);
+
+    // set of items
+    int count = mPropCount;
+    data->writeInt32(count);
+    for (int i = 0 ; i < count; i++ ) {
+            Prop *prop = &mProps[i];
+            data->writeCString(prop->mName);
+            data->writeInt32(prop->mType);
+            switch (prop->mType) {
+                case MediaAnalyticsItem::kTypeInt32:
+                        data->writeInt32(prop->u.int32Value);
+                        break;
+                case MediaAnalyticsItem::kTypeInt64:
+                        data->writeInt64(prop->u.int64Value);
+                        break;
+                case MediaAnalyticsItem::kTypeDouble:
+                        data->writeDouble(prop->u.doubleValue);
+                        break;
+                case MediaAnalyticsItem::kTypeRate:
+                        data->writeInt64(prop->u.rate.count);
+                        data->writeInt64(prop->u.rate.duration);
+                        break;
+                case MediaAnalyticsItem::kTypeCString:
+                        data->writeCString(prop->u.CStringValue);
+                        break;
+                default:
+                        ALOGE("found bad Prop type: %d, idx %d, name %s",
+                              prop->mType, i, prop->mName);
+                        break;
+            }
+    }
+
+    return 0;
+}
+
+
+AString MediaAnalyticsItem::toString() {
+
+    AString result = "(";
+    char buffer[512];
+
+    // same order as we spill into the parcel, although not required
+    // key+session are our primary matching criteria
+    //RBE ALOGD("mKey.c_str");
+    result.append(mKey.c_str());
+    //RBE ALOGD("post-mKey.c_str");
+    result.append(":");
+    snprintf(buffer, sizeof(buffer), "%" PRId64 ":", mSessionID);
+    result.append(buffer);
+
+    // we need these internally, but don't want to upload them
+    snprintf(buffer, sizeof(buffer), "%d:%d", mUid, mPid);
+    result.append(buffer);
+
+    snprintf(buffer, sizeof(buffer), "%d:", mFinalized);
+    result.append(buffer);
+    snprintf(buffer, sizeof(buffer), "%" PRId64 ":", mTimestamp);
+    result.append(buffer);
+
+    // set of items
+    int count = mPropCount;
+    snprintf(buffer, sizeof(buffer), "%d:", count);
+    result.append(buffer);
+    for (int i = 0 ; i < count; i++ ) {
+            Prop *prop = &mProps[i];
+            switch (prop->mType) {
+                case MediaAnalyticsItem::kTypeInt32:
+                        snprintf(buffer,sizeof(buffer),
+                        "%s=%d:", prop->mName, prop->u.int32Value);
+                        break;
+                case MediaAnalyticsItem::kTypeInt64:
+                        snprintf(buffer,sizeof(buffer),
+                        "%s=%" PRId64 ":", prop->mName, prop->u.int64Value);
+                        break;
+                case MediaAnalyticsItem::kTypeDouble:
+                        snprintf(buffer,sizeof(buffer),
+                        "%s=%e:", prop->mName, prop->u.doubleValue);
+                        break;
+                case MediaAnalyticsItem::kTypeRate:
+                        snprintf(buffer,sizeof(buffer),
+                        "%s=%" PRId64 "/%" PRId64 ":", prop->mName,
+                        prop->u.rate.count, prop->u.rate.duration);
+                        break;
+                case MediaAnalyticsItem::kTypeCString:
+                        snprintf(buffer,sizeof(buffer), "%s=", prop->mName);
+                        result.append(buffer);
+                        // XXX: sanitize string for ':' '='
+                        result.append(prop->u.CStringValue);
+                        buffer[0] = ':';
+                        buffer[1] = '\0';
+                        break;
+                default:
+                        ALOGE("to_String bad item type: %d for %s",
+                              prop->mType, prop->mName);
+                        break;
+            }
+            result.append(buffer);
+    }
+
+    result.append(")");
+
+    return result;
+}
+
+// for the lazy, we offer methods that finds the service and
+// calls the appropriate daemon
+bool MediaAnalyticsItem::selfrecord() {
+    return selfrecord(false);
+}
+
+bool MediaAnalyticsItem::selfrecord(bool forcenew) {
+
+    if (DEBUG_API) {
+        AString p = this->toString();
+        ALOGD("selfrecord of: %s [forcenew=%d]", p.c_str(), forcenew);
+    }
+
+    sp<IMediaAnalyticsService> svc = getInstance();
+
+    if (svc != NULL) {
+        svc->submit(this, forcenew);
+        return true;
+    } else {
+        AString p = this->toString();
+        ALOGD("Unable to record: %s [forcenew=%d]", p.c_str(), forcenew);
+        return false;
+    }
+}
+
+// get a connection we can reuse for most of our lifetime
+// static
+sp<IMediaAnalyticsService> MediaAnalyticsItem::sAnalyticsService;
+static Mutex sInitMutex;
+
+//static
+bool MediaAnalyticsItem::isEnabled() {
+    int enabled = property_get_int32(MediaAnalyticsItem::EnabledProperty, -1);
+
+    if (enabled == -1) {
+        enabled = property_get_int32(MediaAnalyticsItem::EnabledPropertyPersist, -1);
+    }
+    if (enabled == -1) {
+        enabled = MediaAnalyticsItem::EnabledProperty_default;
+    }
+    if (enabled <= 0) {
+        return false;
+    }
+    return true;
+}
+
+//static
+sp<IMediaAnalyticsService> MediaAnalyticsItem::getInstance() {
+    static const char *servicename = "media.metrics";
+    static int tries_remaining = SVC_TRIES;
+    int enabled = isEnabled();
+
+    if (enabled == false) {
+        if (DEBUG_SERVICEACCESS) {
+                ALOGD("disabled");
+        }
+        return NULL;
+    }
+
+    // completely skip logging from certain UIDs. We do this here
+    // to avoid the multi-second timeouts while we learn that
+    // sepolicy will not let us find the service.
+    // We do this only for a select set of UIDs
+    // The sepolicy protection is still in place, we just want a faster
+    // response from this specific, small set of uids.
+    {
+        uid_t uid = getuid();
+        switch (uid) {
+            case AID_RADIO:     // telephony subsystem, RIL
+                return NULL;
+                break;
+            default:
+                // let sepolicy deny access if appropriate
+                break;
+        }
+    }
+
+    {
+        Mutex::Autolock _l(sInitMutex);
+        const char *badness = "";
+
+        // think of tries_remaining as telling us whether service==NULL because
+        // (1) we haven't tried to initialize it yet
+        // (2) we've tried to initialize it, but failed.
+        if (sAnalyticsService == NULL && tries_remaining > 0) {
+            sp<IServiceManager> sm = defaultServiceManager();
+            if (sm != NULL) {
+                sp<IBinder> binder = sm->getService(String16(servicename));
+                if (binder != NULL) {
+                    sAnalyticsService = interface_cast<IMediaAnalyticsService>(binder);
+                } else {
+                    badness = "did not find service";
+                }
+            } else {
+                badness = "No Service Manager access";
+            }
+
+            if (sAnalyticsService == NULL) {
+                if (tries_remaining > 0) {
+                    tries_remaining--;
+                }
+                if (DEBUG_SERVICEACCESS) {
+                    ALOGD("Unable to bind to service %s: %s", servicename, badness);
+                }
+            }
+        }
+
+        return sAnalyticsService;
+    }
+}
+
+
+// merge the info from 'incoming' into this record.
+// we finish with a union of this+incoming and special handling for collisions
+bool MediaAnalyticsItem::merge(MediaAnalyticsItem *incoming) {
+
+    // if I don't have key or session id, take them from incoming
+    // 'this' should never be missing both of them...
+    if (mKey.empty()) {
+        mKey = incoming->mKey;
+    } else if (mSessionID == 0) {
+        mSessionID = incoming->mSessionID;
+    }
+
+    // we always take the more recent 'finalized' value
+    setFinalized(incoming->getFinalized());
+
+    // for each attribute from 'incoming', resolve appropriately
+    int nattr = incoming->mPropCount;
+    for (int i = 0 ; i < nattr; i++ ) {
+        Prop *iprop = &incoming->mProps[i];
+        Prop *oprop = findProp(iprop->mName);
+        const char *p = iprop->mName;
+        size_t len = strlen(p);
+        char semantic = p[len-1];
+
+        if (oprop == NULL) {
+            // no oprop, so we insert the new one
+            oprop = allocateProp(p);
+            copyProp(oprop, iprop);
+        } else {
+            // merge iprop into oprop
+            switch (semantic) {
+                case '<':       // first  aka keep old)
+                    /* nop */
+                    break;
+
+                default:        // default is 'last'
+                case '>':       // last (aka keep new)
+                    copyProp(oprop, iprop);
+                    break;
+
+                case '+':       /* sum */
+                    // XXX validate numeric types, sum in place
+                    break;
+
+            }
+        }
+    }
+
+    // not sure when we'd return false...
+    return true;
+}
+
+} // namespace android
+
diff --git a/media/libmediametrics/include/IMediaAnalyticsService.h b/media/libmediametrics/include/IMediaAnalyticsService.h
new file mode 100644
index 0000000..f635e94
--- /dev/null
+++ b/media/libmediametrics/include/IMediaAnalyticsService.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIAANALYTICSSERVICE_H
+#define ANDROID_IMEDIAANALYTICSSERVICE_H
+
+#include <utils/String8.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+
+#include <sys/types.h>
+#include <utils/Errors.h>
+#include <utils/Log.h>
+#include <utils/RefBase.h>
+#include <utils/List.h>
+
+#include <binder/IServiceManager.h>
+
+#include <media/MediaAnalyticsItem.h>
+// nope...#include <media/MediaAnalytics.h>
+
+namespace android {
+
+class IMediaAnalyticsService: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaAnalyticsService);
+
+    // generate a unique sessionID to use across multiple requests
+    // 'unique' is within this device, since last reboot
+    virtual MediaAnalyticsItem::SessionID_t generateUniqueSessionID() = 0;
+
+    // submit the indicated record to the mediaanalytics service, where
+    // it will be merged (if appropriate) with incomplete records that
+    // share the same key and sessionid.
+    // 'forcenew' marks any matching incomplete record as complete before
+    // inserting this new record.
+    // returns the sessionID associated with that item.
+    // caller continues to own the passed item
+    virtual MediaAnalyticsItem::SessionID_t submit(MediaAnalyticsItem *item, bool forcenew) = 0;
+
+};
+
+// ----------------------------------------------------------------------------
+
+class BnMediaAnalyticsService: public BnInterface<IMediaAnalyticsService>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif // ANDROID_IMEDIASTATISTICSSERVICE_H
diff --git a/media/libmediametrics/include/MediaAnalyticsItem.h b/media/libmediametrics/include/MediaAnalyticsItem.h
new file mode 100644
index 0000000..dc501b2
--- /dev/null
+++ b/media/libmediametrics/include/MediaAnalyticsItem.h
@@ -0,0 +1,239 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIA_MEDIAANALYTICSITEM_H
+#define ANDROID_MEDIA_MEDIAANALYTICSITEM_H
+
+#include <cutils/properties.h>
+#include <sys/types.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/RefBase.h>
+#include <utils/StrongPointer.h>
+#include <utils/Timers.h>
+
+#include <media/stagefright/foundation/AString.h>
+
+namespace android {
+
+
+
+class IMediaAnalyticsService;
+
+// the class interface
+//
+
+class MediaAnalyticsItem {
+
+    friend class MediaAnalyticsService;
+    friend class IMediaAnalyticsService;
+    friend class MediaMetricsJNI;
+    friend class MetricsSummarizer;
+
+    public:
+
+            enum Type {
+                kTypeNone = 0,
+                kTypeInt32 = 1,
+                kTypeInt64 = 2,
+                kTypeDouble = 3,
+                kTypeCString = 4,
+                kTypeRate = 5,
+            };
+
+        // sessionid
+        // unique within device, within boot,
+        typedef int64_t SessionID_t;
+        static constexpr SessionID_t SessionIDInvalid = -1;
+        static constexpr SessionID_t SessionIDNone = 0;
+
+        // Key: the record descriminator
+        // values for the record discriminator
+        // values can be "component/component"
+        // basic values: "video", "audio", "drm"
+        // XXX: need to better define the format
+        typedef AString Key;
+        static const Key kKeyNone;              // ""
+        static const Key kKeyAny;               // "*"
+
+        // Attr: names for attributes within a record
+        // format "prop1" or "prop/subprop"
+        // XXX: need to better define the format
+        typedef const char *Attr;
+
+
+    public:
+
+        // access functions for the class
+        MediaAnalyticsItem();
+        MediaAnalyticsItem(Key);
+        ~MediaAnalyticsItem();
+
+        // so clients can send intermediate values to be overlaid later
+        MediaAnalyticsItem &setFinalized(bool);
+        bool getFinalized() const;
+
+        // SessionID ties multiple submissions for same key together
+        // so that if video "height" and "width" are known at one point
+        // and "framerate" is only known later, they can be be brought
+        // together.
+        MediaAnalyticsItem &setSessionID(SessionID_t);
+        MediaAnalyticsItem &clearSessionID();
+        SessionID_t getSessionID() const;
+        // generates and stores a new ID iff mSessionID == SessionIDNone
+        SessionID_t generateSessionID();
+
+        // reset all contents, discarding any extra data
+        void clear();
+        MediaAnalyticsItem *dup();
+
+        // set the key discriminator for the record.
+        // most often initialized as part of the constructor
+        MediaAnalyticsItem &setKey(MediaAnalyticsItem::Key);
+        MediaAnalyticsItem::Key getKey();
+
+        // # of attributes in the record
+        int32_t count() const;
+
+        // set values appropriately
+        void setInt32(Attr, int32_t value);
+        void setInt64(Attr, int64_t value);
+        void setDouble(Attr, double value);
+        void setRate(Attr, int64_t count, int64_t duration);
+        void setCString(Attr, const char *value);
+
+        // fused get/add/set; if attr wasn't there, it's a simple set.
+        // type-mismatch counts as "wasn't there".
+        void addInt32(Attr, int32_t value);
+        void addInt64(Attr, int64_t value);
+        void addDouble(Attr, double value);
+        void addRate(Attr, int64_t count, int64_t duration);
+
+        // find & extract values
+        // return indicates whether attr exists (and thus value filled in)
+        // NULL parameter value suppresses storage of value.
+        bool getInt32(Attr, int32_t *value);
+        bool getInt64(Attr, int64_t *value);
+        bool getDouble(Attr, double *value);
+        bool getRate(Attr, int64_t *count, int64_t *duration, double *rate);
+        // Caller owns the returned string
+        bool getCString(Attr, char **value);
+
+        // parameter indicates whether to close any existing open
+        // record with same key before establishing a new record
+        // caller retains ownership of 'this'.
+        bool selfrecord(bool);
+        bool selfrecord();
+
+        // remove indicated attributes and their values
+        // filterNot() could also be called keepOnly()
+        // return value is # attributes removed
+        // XXX: perhaps 'remove' instead of 'filter'
+        // XXX: filterNot would become 'keep'
+        int32_t filter(int count, Attr attrs[]);
+        int32_t filterNot(int count, Attr attrs[]);
+        int32_t filter(Attr attr);
+
+        // below here are used on server side or to talk to server
+        // clients need not worry about these.
+
+        // timestamp, pid, and uid only used on server side
+        // timestamp is in 'nanoseconds, unix time'
+        MediaAnalyticsItem &setTimestamp(nsecs_t);
+        nsecs_t getTimestamp() const;
+
+        MediaAnalyticsItem &setPid(pid_t);
+        pid_t getPid() const;
+
+        MediaAnalyticsItem &setUid(uid_t);
+        uid_t getUid() const;
+
+        // our serialization code for binder calls
+        int32_t writeToParcel(Parcel *);
+        int32_t readFromParcel(const Parcel&);
+
+        AString toString();
+
+        // are we collecting analytics data
+        static bool isEnabled();
+
+    protected:
+
+        // merge fields from arg into this
+        // with rules for first/last/add, etc
+        // XXX: document semantics and how they are indicated
+        // caller continues to own 'incoming'
+        bool merge(MediaAnalyticsItem *incoming);
+
+        // enabled 1, disabled 0
+        static const char * const EnabledProperty;
+        static const char * const EnabledPropertyPersist;
+        static const int   EnabledProperty_default;
+
+    private:
+
+        // to help validate that A doesn't mess with B's records
+        pid_t     mPid;
+        uid_t     mUid;
+
+        // let's reuse a binder connection
+        static sp<IMediaAnalyticsService> sAnalyticsService;
+        static sp<IMediaAnalyticsService> getInstance();
+
+        // tracking information
+        SessionID_t mSessionID;         // grouping similar records
+        nsecs_t mTimestamp;             // ns, system_time_monotonic
+
+        // will this record accept further updates
+        bool mFinalized;
+
+        Key mKey;
+
+        struct Prop {
+
+            Type mType;
+            const char *mName;
+            size_t mNameLen;    // the strlen(), doesn't include the null
+            union {
+                    int32_t int32Value;
+                    int64_t int64Value;
+                    double doubleValue;
+                    char *CStringValue;
+                    struct { int64_t count, duration; } rate;
+            } u;
+            void setName(const char *name, size_t len);
+        };
+
+        void initProp(Prop *item);
+        void clearProp(Prop *item);
+        void clearPropValue(Prop *item);
+        void copyProp(Prop *dst, const Prop *src);
+        enum {
+            kGrowProps = 10
+        };
+        void growProps(int increment = kGrowProps);
+        size_t findPropIndex(const char *name, size_t len);
+        Prop *findProp(const char *name);
+        Prop *allocateProp(const char *name);
+
+        size_t mPropCount;
+        size_t mPropSize;
+        Prop *mProps;
+};
+
+} // namespace android
+
+#endif
diff --git a/media/libmediaplayerservice/ActivityManager.cpp b/media/libmediaplayerservice/ActivityManager.cpp
index 60a209f..438d422 100644
--- a/media/libmediaplayerservice/ActivityManager.cpp
+++ b/media/libmediaplayerservice/ActivityManager.cpp
@@ -14,18 +14,14 @@
  * limitations under the License.
  */
 
-#include <unistd.h>
+#include <binder/IActivityManager.h>
 #include <binder/IBinder.h>
 #include <binder/IServiceManager.h>
-#include <binder/Parcel.h>
-#include <utils/String8.h>
 
 #include "ActivityManager.h"
 
 namespace android {
 
-const uint32_t OPEN_CONTENT_URI_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION + 4;
-
 // Perform ContentProvider.openFile() on the given URI, returning
 // the resulting native file descriptor.  Returns < 0 on error.
 int openContentProviderFile(const String16& uri)
@@ -33,26 +29,10 @@
     int fd = -1;
 
     sp<IServiceManager> sm = defaultServiceManager();
-    sp<IBinder> am = sm->getService(String16("activity"));
+    sp<IBinder> binder = sm->getService(String16("activity"));
+    sp<IActivityManager> am = interface_cast<IActivityManager>(binder);
     if (am != NULL) {
-        Parcel data, reply;
-        data.writeInterfaceToken(String16("android.app.IActivityManager"));
-        data.writeString16(uri);
-        status_t ret = am->transact(OPEN_CONTENT_URI_TRANSACTION, data, &reply);
-        if (ret == NO_ERROR) {
-            int32_t exceptionCode = reply.readExceptionCode();
-            if (!exceptionCode) {
-                // Success is indicated here by a nonzero int followed by the fd;
-                // failure by a zero int with no data following.
-                if (reply.readInt32() != 0) {
-                    fd = dup(reply.readFileDescriptor());
-                }
-            } else {
-                // An exception was thrown back; fall through to return failure
-                ALOGD("openContentUri(%s) caught exception %d\n",
-                        String8(uri).string(), exceptionCode);
-            }
-        }
+        fd = am->openContentUri(uri);
     }
 
     return fd;
diff --git a/media/libmediaplayerservice/Android.mk b/media/libmediaplayerservice/Android.mk
index 8d86366..7af7031 100644
--- a/media/libmediaplayerservice/Android.mk
+++ b/media/libmediaplayerservice/Android.mk
@@ -19,44 +19,47 @@
 
 LOCAL_SHARED_LIBRARIES :=       \
     libbinder                   \
-    libcamera_client            \
     libcrypto                   \
     libcutils                   \
     libdrmframework             \
     liblog                      \
     libdl                       \
     libgui                      \
+    libaudioclient              \
     libmedia                    \
+    libmediametrics             \
+    libmediadrm                 \
     libmediautils               \
     libmemunreachable           \
-    libsonivox                  \
     libstagefright              \
     libstagefright_foundation   \
     libstagefright_httplive     \
     libstagefright_omx          \
     libstagefright_wfd          \
     libutils                    \
-    libvorbisidec               \
+    libnativewindow             \
+    libhidlbase                 \
+    android.hardware.media.omx@1.0 \
 
 LOCAL_STATIC_LIBRARIES :=       \
     libstagefright_nuplayer     \
     libstagefright_rtsp         \
     libstagefright_timedtext    \
 
+LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := libmedia
+
 LOCAL_C_INCLUDES :=                                                 \
     $(TOP)/frameworks/av/media/libstagefright/include               \
     $(TOP)/frameworks/av/media/libstagefright/rtsp                  \
     $(TOP)/frameworks/av/media/libstagefright/wifi-display          \
     $(TOP)/frameworks/av/media/libstagefright/webm                  \
-    $(TOP)/frameworks/av/include/media                              \
+    $(LOCAL_PATH)/include/media                              \
     $(TOP)/frameworks/av/include/camera                             \
     $(TOP)/frameworks/native/include/media/openmax                  \
     $(TOP)/frameworks/native/include/media/hardware                 \
     $(TOP)/external/tremolo/Tremolo                                 \
-    libcore/include                                                 \
 
 LOCAL_CFLAGS += -Werror -Wno-error=deprecated-declarations -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE:= libmediaplayerservice
 
diff --git a/media/libmediaplayerservice/HDCP.h b/media/libmediaplayerservice/HDCP.h
index 26ddc86..83c61b5 100644
--- a/media/libmediaplayerservice/HDCP.h
+++ b/media/libmediaplayerservice/HDCP.h
@@ -24,7 +24,7 @@
 namespace android {
 
 struct HDCP : public BnHDCP {
-    HDCP(bool createEncryptionModule);
+    explicit HDCP(bool createEncryptionModule);
     virtual ~HDCP();
 
     virtual status_t setObserver(const sp<IHDCPObserver> &observer);
diff --git a/media/libmediaplayerservice/MediaPlayerFactory.cpp b/media/libmediaplayerservice/MediaPlayerFactory.cpp
index 605c710..0a9f791 100644
--- a/media/libmediaplayerservice/MediaPlayerFactory.cpp
+++ b/media/libmediaplayerservice/MediaPlayerFactory.cpp
@@ -26,7 +26,6 @@
 #include <media/stagefright/foundation/ADebug.h>
 #include <utils/Errors.h>
 #include <utils/misc.h>
-#include <../libstagefright/include/WVMExtractor.h>
 
 #include "MediaPlayerFactory.h"
 
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index f8dc0dc..11f29cb 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -60,6 +60,7 @@
 #include <media/stagefright/Utils.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooperRoster.h>
+#include <media/stagefright/SurfaceUtils.h>
 #include <mediautils/BatteryNotifier.h>
 
 #include <memunreachable/memunreachable.h>
@@ -277,20 +278,6 @@
     ALOGV("MediaPlayerService created");
     mNextConnId = 1;
 
-    mBatteryAudio.refCount = 0;
-    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
-        mBatteryAudio.deviceOn[i] = 0;
-        mBatteryAudio.lastTime[i] = 0;
-        mBatteryAudio.totalTime[i] = 0;
-    }
-    // speaker is on by default
-    mBatteryAudio.deviceOn[SPEAKER] = 1;
-
-    // reset battery stats
-    // if the mediaserver has crashed, battery stats could be left
-    // in bad state, reset the state upon service start.
-    BatteryNotifier::getInstance().noteResetVideo();
-
     MediaPlayerFactory::registerBuiltinFactories();
 }
 
@@ -310,7 +297,7 @@
     return recorder;
 }
 
-void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client)
+void MediaPlayerService::removeMediaRecorderClient(const wp<MediaRecorderClient>& client)
 {
     Mutex::Autolock lock(mLock);
     mMediaRecorderClients.remove(client);
@@ -575,7 +562,7 @@
     return NO_ERROR;
 }
 
-void MediaPlayerService::removeClient(wp<Client> client)
+void MediaPlayerService::removeClient(const wp<Client>& client)
 {
     Mutex::Autolock lock(mLock);
     mClients.remove(client);
@@ -600,7 +587,7 @@
     mLoop = false;
     mStatus = NO_INIT;
     mAudioSessionId = audioSessionId;
-    mUID = uid;
+    mUid = uid;
     mRetransmitEndpointValid = false;
     mAudioAttributes = NULL;
 
@@ -613,16 +600,14 @@
 MediaPlayerService::Client::~Client()
 {
     ALOGV("Client(%d) destructor pid = %d", mConnId, mPid);
-    {
-        Mutex::Autolock l(mLock);
-        mAudioOutput.clear();
-    }
+    mAudioOutput.clear();
     wp<Client> client(this);
     disconnect();
     mService->removeClient(client);
     if (mAudioAttributes != NULL) {
         free(mAudioAttributes);
     }
+    clearDeathNotifiers_l();
 }
 
 void MediaPlayerService::Client::disconnect()
@@ -671,7 +656,7 @@
     }
 
     if (p != NULL) {
-        p->setUID(mUID);
+        p->setUID(mUid);
     }
 
     return p;
@@ -682,12 +667,22 @@
         const sp<MediaPlayerBase>& listener,
         int which) {
     mService = service;
+    mOmx = nullptr;
+    mListener = listener;
+    mWhich = which;
+}
+
+MediaPlayerService::Client::ServiceDeathNotifier::ServiceDeathNotifier(
+        const sp<IOmx>& omx,
+        const sp<MediaPlayerBase>& listener,
+        int which) {
+    mService = nullptr;
+    mOmx = omx;
     mListener = listener;
     mWhich = which;
 }
 
 MediaPlayerService::Client::ServiceDeathNotifier::~ServiceDeathNotifier() {
-    mService->unlinkToDeath(this);
 }
 
 void MediaPlayerService::Client::ServiceDeathNotifier::binderDied(const wp<IBinder>& /*who*/) {
@@ -699,6 +694,38 @@
     }
 }
 
+void MediaPlayerService::Client::ServiceDeathNotifier::serviceDied(
+        uint64_t /* cookie */,
+        const wp<::android::hidl::base::V1_0::IBase>& /* who */) {
+    sp<MediaPlayerBase> listener = mListener.promote();
+    if (listener != NULL) {
+        listener->sendEvent(MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED, mWhich);
+    } else {
+        ALOGW("listener for process %d death is gone", mWhich);
+    }
+}
+
+void MediaPlayerService::Client::ServiceDeathNotifier::unlinkToDeath() {
+    if (mService != nullptr) {
+        mService->unlinkToDeath(this);
+        mService = nullptr;
+    } else if (mOmx != nullptr) {
+        mOmx->unlinkToDeath(this);
+        mOmx = nullptr;
+    }
+}
+
+void MediaPlayerService::Client::clearDeathNotifiers_l() {
+    if (mExtractorDeathListener != nullptr) {
+        mExtractorDeathListener->unlinkToDeath();
+        mExtractorDeathListener = nullptr;
+    }
+    if (mCodecDeathListener != nullptr) {
+        mCodecDeathListener->unlinkToDeath();
+        mCodecDeathListener = nullptr;
+    }
+}
+
 sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre(
         player_type playerType)
 {
@@ -712,17 +739,38 @@
 
     sp<IServiceManager> sm = defaultServiceManager();
     sp<IBinder> binder = sm->getService(String16("media.extractor"));
+    if (binder == NULL) {
+        ALOGE("extractor service not available");
+        return NULL;
+    }
     sp<ServiceDeathNotifier> extractorDeathListener =
             new ServiceDeathNotifier(binder, p, MEDIAEXTRACTOR_PROCESS_DEATH);
     binder->linkToDeath(extractorDeathListener);
 
-    binder = sm->getService(String16("media.codec"));
-    sp<ServiceDeathNotifier> codecDeathListener =
-            new ServiceDeathNotifier(binder, p, MEDIACODEC_PROCESS_DEATH);
-    binder->linkToDeath(codecDeathListener);
+    sp<ServiceDeathNotifier> codecDeathListener;
+    if (property_get_bool("persist.media.treble_omx", true)) {
+        // Treble IOmx
+        sp<IOmx> omx = IOmx::getService();
+        if (omx == nullptr) {
+            ALOGE("Treble IOmx not available");
+            return NULL;
+        }
+        codecDeathListener = new ServiceDeathNotifier(omx, p, MEDIACODEC_PROCESS_DEATH);
+        omx->linkToDeath(codecDeathListener, 0);
+    } else {
+        // Legacy IOMX
+        binder = sm->getService(String16("media.codec"));
+        if (binder == NULL) {
+            ALOGE("codec service not available");
+            return NULL;
+        }
+        codecDeathListener = new ServiceDeathNotifier(binder, p, MEDIACODEC_PROCESS_DEATH);
+        binder->linkToDeath(codecDeathListener);
+    }
 
     Mutex::Autolock lock(mLock);
 
+    clearDeathNotifiers_l();
     mExtractorDeathListener = extractorDeathListener;
     mCodecDeathListener = codecDeathListener;
 
@@ -870,11 +918,11 @@
 
 void MediaPlayerService::Client::disconnectNativeWindow_l() {
     if (mConnectedWindow != NULL) {
-        status_t err = native_window_api_disconnect(mConnectedWindow.get(),
-                NATIVE_WINDOW_API_MEDIA);
+        status_t err = nativeWindowDisconnect(
+                mConnectedWindow.get(), "disconnectNativeWindow");
 
         if (err != OK) {
-            ALOGW("native_window_api_disconnect returned an error: %s (%d)",
+            ALOGW("nativeWindowDisconnect returned an error: %s (%d)",
                     strerror(-err), err);
         }
     }
@@ -896,8 +944,7 @@
     sp<ANativeWindow> anw;
     if (bufferProducer != NULL) {
         anw = new Surface(bufferProducer, true /* controlledByApp */);
-        status_t err = native_window_api_connect(anw.get(),
-                NATIVE_WINDOW_API_MEDIA);
+        status_t err = nativeWindowConnect(anw.get(), "setVideoSurfaceTexture");
 
         if (err != OK) {
             ALOGE("setVideoSurfaceTexture failed: %d", err);
@@ -927,11 +974,11 @@
         mLock.unlock();
     } else {
         mLock.unlock();
-        status_t err = native_window_api_disconnect(
-                anw.get(), NATIVE_WINDOW_API_MEDIA);
+        status_t err = nativeWindowDisconnect(
+                anw.get(), "disconnectNativeWindow");
 
         if (err != OK) {
-            ALOGW("native_window_api_disconnect returned an error: %s (%d)",
+            ALOGW("nativeWindowDisconnect returned an error: %s (%d)",
                     strerror(-err), err);
         }
     }
@@ -1006,6 +1053,32 @@
     return OK;
 }
 
+status_t MediaPlayerService::Client::setBufferingSettings(
+        const BufferingSettings& buffering)
+{
+    ALOGV("[%d] setBufferingSettings{%s}",
+            mConnId, buffering.toString().string());
+    sp<MediaPlayerBase> p = getPlayer();
+    if (p == 0) return UNKNOWN_ERROR;
+    return p->setBufferingSettings(buffering);
+}
+
+status_t MediaPlayerService::Client::getDefaultBufferingSettings(
+        BufferingSettings* buffering /* nonnull */)
+{
+    sp<MediaPlayerBase> p = getPlayer();
+    // TODO: create mPlayer on demand.
+    if (p == 0) return UNKNOWN_ERROR;
+    status_t ret = p->getDefaultBufferingSettings(buffering);
+    if (ret == NO_ERROR) {
+        ALOGV("[%d] getDefaultBufferingSettings{%s}",
+                mConnId, buffering->toString().string());
+    } else {
+        ALOGV("[%d] getDefaultBufferingSettings returned %d", mConnId, ret);
+    }
+    return ret;
+}
+
 status_t MediaPlayerService::Client::prepareAsync()
 {
     ALOGV("[%d] prepareAsync", mConnId);
@@ -1155,12 +1228,48 @@
     return OK;
 }
 
-status_t MediaPlayerService::Client::seekTo(int msec)
+VolumeShaper::Status MediaPlayerService::Client::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation) {
+    // for hardware output, call player instead
+    ALOGV("Client::applyVolumeShaper(%p)", this);
+    sp<MediaPlayerBase> p = getPlayer();
+    {
+        Mutex::Autolock l(mLock);
+        if (p != 0 && p->hardwareOutput()) {
+            // TODO: investigate internal implementation
+            return VolumeShaper::Status(INVALID_OPERATION);
+        }
+        if (mAudioOutput.get() != nullptr) {
+            return mAudioOutput->applyVolumeShaper(configuration, operation);
+        }
+    }
+    return VolumeShaper::Status(INVALID_OPERATION);
+}
+
+sp<VolumeShaper::State> MediaPlayerService::Client::getVolumeShaperState(int id) {
+    // for hardware output, call player instead
+    ALOGV("Client::getVolumeShaperState(%p)", this);
+    sp<MediaPlayerBase> p = getPlayer();
+    {
+        Mutex::Autolock l(mLock);
+        if (p != 0 && p->hardwareOutput()) {
+            // TODO: investigate internal implementation.
+            return nullptr;
+        }
+        if (mAudioOutput.get() != nullptr) {
+            return mAudioOutput->getVolumeShaperState(id);
+        }
+    }
+    return nullptr;
+}
+
+status_t MediaPlayerService::Client::seekTo(int msec, MediaPlayerSeekMode mode)
 {
-    ALOGV("[%d] seekTo(%d)", mConnId, msec);
+    ALOGV("[%d] seekTo(%d, %d)", mConnId, msec, mode);
     sp<MediaPlayerBase> p = getPlayer();
     if (p == 0) return UNKNOWN_ERROR;
-    return p->seekTo(msec);
+    return p->seekTo(msec, mode);
 }
 
 status_t MediaPlayerService::Client::reset()
@@ -1329,16 +1438,33 @@
     }
 
     sp<IMediaPlayerClient> c;
+    sp<Client> nextClient;
+    status_t errStartNext = NO_ERROR;
     {
         Mutex::Autolock l(client->mLock);
         c = client->mClient;
         if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) {
+            nextClient = client->mNextClient;
+
             if (client->mAudioOutput != NULL)
                 client->mAudioOutput->switchToNextOutput();
-            client->mNextClient->start();
-            if (client->mNextClient->mClient != NULL) {
-                client->mNextClient->mClient->notify(
-                        MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj);
+
+            errStartNext = nextClient->start();
+        }
+    }
+
+    if (nextClient != NULL) {
+        sp<IMediaPlayerClient> nc;
+        {
+            Mutex::Autolock l(nextClient->mLock);
+            nc = nextClient->mClient;
+        }
+        if (nc != NULL) {
+            if (errStartNext == NO_ERROR) {
+                nc->notify(MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj);
+            } else {
+                nc->notify(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN , 0, obj);
+                ALOGE("gapless:start playback for next track failed, err(%d)", errStartNext);
             }
         }
     }
@@ -1386,6 +1512,32 @@
     }
 }
 
+// Modular DRM
+status_t MediaPlayerService::Client::prepareDrm(const uint8_t uuid[16],
+        const Vector<uint8_t>& drmSessionId)
+{
+    ALOGV("[%d] prepareDrm", mConnId);
+    sp<MediaPlayerBase> p = getPlayer();
+    if (p == 0) return UNKNOWN_ERROR;
+
+    status_t ret = p->prepareDrm(uuid, drmSessionId);
+    ALOGV("prepareDrm ret: %d", ret);
+
+    return ret;
+}
+
+status_t MediaPlayerService::Client::releaseDrm()
+{
+    ALOGV("[%d] releaseDrm", mConnId);
+    sp<MediaPlayerBase> p = getPlayer();
+    if (p == 0) return UNKNOWN_ERROR;
+
+    status_t ret = p->releaseDrm();
+    ALOGV("releaseDrm ret: %d", ret);
+
+    return ret;
+}
+
 #if CALLBACK_ANTAGONIZER
 const int Antagonizer::interval = 10000; // 10 msecs
 
@@ -1423,7 +1575,7 @@
 
 #undef LOG_TAG
 #define LOG_TAG "AudioSink"
-MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId, int uid, int pid,
+MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId, uid_t uid, int pid,
         const audio_attributes_t* attr)
     : mCallback(NULL),
       mCallbackCookie(NULL),
@@ -1440,7 +1592,8 @@
       mPid(pid),
       mSendLevel(0.0),
       mAuxEffectId(0),
-      mFlags(AUDIO_OUTPUT_FLAG_NONE)
+      mFlags(AUDIO_OUTPUT_FLAG_NONE),
+      mVolumeHandler(new VolumeHandler())
 {
     ALOGV("AudioOutput(%d)", sessionId);
     if (attr != NULL) {
@@ -1558,57 +1711,45 @@
     }
 
     uint32_t numFramesPlayed;
-    int64_t numFramesPlayedAt;
+    int64_t numFramesPlayedAtUs;
     AudioTimestamp ts;
-    static const int64_t kStaleTimestamp100ms = 100000;
 
     status_t res = mTrack->getTimestamp(ts);
     if (res == OK) {                 // case 1: mixing audio tracks and offloaded tracks.
         numFramesPlayed = ts.mPosition;
-        numFramesPlayedAt = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000;
-        const int64_t timestampAge = nowUs - numFramesPlayedAt;
-        if (timestampAge > kStaleTimestamp100ms) {
-            // This is an audio FIXME.
-            // getTimestamp returns a timestamp which may come from audio mixing threads.
-            // After pausing, the MixerThread may go idle, thus the mTime estimate may
-            // become stale. Assuming that the MixerThread runs 20ms, with FastMixer at 5ms,
-            // the max latency should be about 25ms with an average around 12ms (to be verified).
-            // For safety we use 100ms.
-            ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) numFramesPlayedAt(%lld)",
-                    (long long)nowUs, (long long)numFramesPlayedAt);
-            numFramesPlayedAt = nowUs - kStaleTimestamp100ms;
-        }
-        //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAt);
+        numFramesPlayedAtUs = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000;
+        //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAtUs);
     } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track
         numFramesPlayed = 0;
-        numFramesPlayedAt = nowUs;
+        numFramesPlayedAtUs = nowUs;
         //ALOGD("getTimestamp: WOULD_BLOCK %d %lld",
-        //        numFramesPlayed, (long long)numFramesPlayedAt);
+        //        numFramesPlayed, (long long)numFramesPlayedAtUs);
     } else {                         // case 3: transitory at new track or audio fast tracks.
         res = mTrack->getPosition(&numFramesPlayed);
         CHECK_EQ(res, (status_t)OK);
-        numFramesPlayedAt = nowUs;
-        numFramesPlayedAt += 1000LL * mTrack->latency() / 2; /* XXX */
-        //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAt);
+        numFramesPlayedAtUs = nowUs;
+        numFramesPlayedAtUs += 1000LL * mTrack->latency() / 2; /* XXX */
+        //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAtUs);
     }
 
     // CHECK_EQ(numFramesPlayed & (1 << 31), 0);  // can't be negative until 12.4 hrs, test
     // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours.
     int64_t durationUs = (int64_t)((int32_t)numFramesPlayed * 1000000LL / mSampleRateHz)
-            + nowUs - numFramesPlayedAt;
+            + nowUs - numFramesPlayedAtUs;
     if (durationUs < 0) {
         // Occurs when numFramesPlayed position is very small and the following:
         // (1) In case 1, the time nowUs is computed before getTimestamp() is called and
-        //     numFramesPlayedAt is greater than nowUs by time more than numFramesPlayed.
+        //     numFramesPlayedAtUs is greater than nowUs by time more than numFramesPlayed.
         // (2) In case 3, using getPosition and adding mAudioSink->latency() to
-        //     numFramesPlayedAt, by a time amount greater than numFramesPlayed.
+        //     numFramesPlayedAtUs, by a time amount greater than numFramesPlayed.
         //
         // Both of these are transitory conditions.
         ALOGV("getPlayedOutDurationUs: negative duration %lld set to zero", (long long)durationUs);
         durationUs = 0;
     }
     ALOGV("getPlayedOutDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)",
-            (long long)durationUs, (long long)nowUs, numFramesPlayed, (long long)numFramesPlayedAt);
+            (long long)durationUs, (long long)nowUs,
+            numFramesPlayed, (long long)numFramesPlayedAtUs);
     return durationUs;
 }
 
@@ -1916,6 +2057,24 @@
     ALOGV("setVolume");
     t->setVolume(mLeftVolume, mRightVolume);
 
+    // Restore VolumeShapers for the MediaPlayer in case the track was recreated
+    // due to an output sink error (e.g. offload to non-offload switch).
+    mVolumeHandler->forall([&t](const VolumeShaper &shaper) -> VolumeShaper::Status {
+        sp<VolumeShaper::Operation> operationToEnd =
+                new VolumeShaper::Operation(shaper.mOperation);
+        // TODO: Ideally we would restore to the exact xOffset position
+        // as returned by getVolumeShaperState(), but we don't have that
+        // information when restoring at the client unless we periodically poll
+        // the server or create shared memory state.
+        //
+        // For now, we simply advance to the end of the VolumeShaper effect
+        // if it has been started.
+        if (shaper.isStarted()) {
+            operationToEnd->setNormalizedTime(1.f);
+        }
+        return t->applyVolumeShaper(shaper.mConfiguration, operationToEnd);
+    });
+
     mSampleRateHz = sampleRate;
     mFlags = flags;
     mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate);
@@ -1955,7 +2114,11 @@
     if (mTrack != 0) {
         mTrack->setVolume(mLeftVolume, mRightVolume);
         mTrack->setAuxEffectSendLevel(mSendLevel);
-        return mTrack->start();
+        status_t status = mTrack->start();
+        if (status == NO_ERROR) {
+            mVolumeHandler->setStarted();
+        }
+        return status;
     }
     return NO_INIT;
 }
@@ -2152,6 +2315,40 @@
     return NO_ERROR;
 }
 
+VolumeShaper::Status MediaPlayerService::AudioOutput::applyVolumeShaper(
+                const sp<VolumeShaper::Configuration>& configuration,
+                const sp<VolumeShaper::Operation>& operation)
+{
+    Mutex::Autolock lock(mLock);
+    ALOGV("AudioOutput::applyVolumeShaper");
+
+    mVolumeHandler->setIdIfNecessary(configuration);
+
+    VolumeShaper::Status status;
+    if (mTrack != 0) {
+        status = mTrack->applyVolumeShaper(configuration, operation);
+        if (status >= 0) {
+            (void)mVolumeHandler->applyVolumeShaper(configuration, operation);
+            if (mTrack->isPlaying()) { // match local AudioTrack to properly restore.
+                mVolumeHandler->setStarted();
+            }
+        }
+    } else {
+        status = mVolumeHandler->applyVolumeShaper(configuration, operation);
+    }
+    return status;
+}
+
+sp<VolumeShaper::State> MediaPlayerService::AudioOutput::getVolumeShaperState(int id)
+{
+    Mutex::Autolock lock(mLock);
+    if (mTrack != 0) {
+        return mTrack->getVolumeShaperState(id);
+    } else {
+        return mVolumeHandler->getVolumeShaperState(id);
+    }
+}
+
 // static
 void MediaPlayerService::AudioOutput::CallbackWrapper(
         int event, void *cookie, void *info) {
@@ -2317,7 +2514,31 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-void MediaPlayerService::addBatteryData(uint32_t params)
+void MediaPlayerService::addBatteryData(uint32_t params) {
+    mBatteryTracker.addBatteryData(params);
+}
+
+status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
+    return mBatteryTracker.pullBatteryData(reply);
+}
+
+MediaPlayerService::BatteryTracker::BatteryTracker() {
+    mBatteryAudio.refCount = 0;
+    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
+        mBatteryAudio.deviceOn[i] = 0;
+        mBatteryAudio.lastTime[i] = 0;
+        mBatteryAudio.totalTime[i] = 0;
+    }
+    // speaker is on by default
+    mBatteryAudio.deviceOn[SPEAKER] = 1;
+
+    // reset battery stats
+    // if the mediaserver has crashed, battery stats could be left
+    // in bad state, reset the state upon service start.
+    BatteryNotifier::getInstance().noteResetVideo();
+}
+
+void MediaPlayerService::BatteryTracker::addBatteryData(uint32_t params)
 {
     Mutex::Autolock lock(mLock);
 
@@ -2397,7 +2618,7 @@
         return;
     }
 
-    int uid = IPCThreadState::self()->getCallingUid();
+    uid_t uid = IPCThreadState::self()->getCallingUid();
     if (uid == AID_MEDIA) {
         return;
     }
@@ -2457,7 +2678,7 @@
     }
 }
 
-status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
+status_t MediaPlayerService::BatteryTracker::pullBatteryData(Parcel* reply) {
     Mutex::Autolock lock(mLock);
 
     // audio output devices usage
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h
index 42c41cf..e35d098 100644
--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -30,6 +30,8 @@
 #include <media/Metadata.h>
 #include <media/stagefright/foundation/ABase.h>
 
+#include <android/hardware/media/omx/1.0/IOmx.h>
+
 #include <system/audio.h>
 
 namespace android {
@@ -69,13 +71,14 @@
 class MediaPlayerService : public BnMediaPlayerService
 {
     class Client;
+    typedef ::android::hardware::media::omx::V1_0::IOmx IOmx;
 
     class AudioOutput : public MediaPlayerBase::AudioSink
     {
         class CallbackData;
 
      public:
-                                AudioOutput(audio_session_t sessionId, int uid, int pid,
+                                AudioOutput(audio_session_t sessionId, uid_t uid, int pid,
                                         const audio_attributes_t * attr);
         virtual                 ~AudioOutput();
 
@@ -129,6 +132,11 @@
         virtual status_t        setParameters(const String8& keyValuePairs);
         virtual String8         getParameters(const String8& keys);
 
+        virtual VolumeShaper::Status applyVolumeShaper(
+                                        const sp<VolumeShaper::Configuration>& configuration,
+                                        const sp<VolumeShaper::Operation>& operation) override;
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id) override;
+
     private:
         static void             setMinBufferCount();
         static void             CallbackWrapper(
@@ -152,11 +160,12 @@
         float                   mMsecsPerFrame;
         size_t                  mFrameSize;
         audio_session_t         mSessionId;
-        int                     mUid;
+        uid_t                   mUid;
         int                     mPid;
         float                   mSendLevel;
         int                     mAuxEffectId;
         audio_output_flags_t    mFlags;
+        sp<VolumeHandler>       mVolumeHandler;
         mutable Mutex           mLock;
 
         // static variables below not protected by mutex
@@ -169,7 +178,7 @@
         class CallbackData {
             friend AudioOutput;
         public:
-            CallbackData(AudioOutput *cookie) {
+            explicit CallbackData(AudioOutput *cookie) {
                 mData = cookie;
                 mSwitching = false;
             }
@@ -212,7 +221,7 @@
 
     // IMediaPlayerService interface
     virtual sp<IMediaRecorder>  createMediaRecorder(const String16 &opPackageName);
-    void    removeMediaRecorderClient(wp<MediaRecorderClient> client);
+    void    removeMediaRecorderClient(const wp<MediaRecorderClient>& client);
     virtual sp<IMediaMetadataRetriever> createMetadataRetriever();
 
     virtual sp<IMediaPlayer>    create(const sp<IMediaPlayerClient>& client,
@@ -226,7 +235,7 @@
             const sp<IRemoteDisplayClient>& client, const String8& iface);
     virtual status_t            dump(int fd, const Vector<String16>& args);
 
-            void                removeClient(wp<Client> client);
+            void                removeClient(const wp<Client>& client);
             bool                hasClient(wp<Client> client);
 
     enum {
@@ -237,57 +246,71 @@
         CAMERA_PROCESS_DEATH = 4
     };
 
-    // For battery usage tracking purpose
-    struct BatteryUsageInfo {
-        // how many streams are being played by one UID
-        int     refCount;
-        // a temp variable to store the duration(ms) of audio codecs
-        // when we start a audio codec, we minus the system time from audioLastTime
-        // when we pause it, we add the system time back to the audioLastTime
-        // so after the pause, audioLastTime = pause time - start time
-        // if multiple audio streams are played (or recorded), then audioLastTime
-        // = the total playing time of all the streams
-        int32_t audioLastTime;
-        // when all the audio streams are being paused, we assign audioLastTime to
-        // this variable, so this value could be provided to the battery app
-        // in the next pullBatteryData call
-        int32_t audioTotalTime;
-
-        int32_t videoLastTime;
-        int32_t videoTotalTime;
-    };
-    KeyedVector<int, BatteryUsageInfo>    mBatteryData;
-
-    enum {
-        SPEAKER,
-        OTHER_AUDIO_DEVICE,
-        SPEAKER_AND_OTHER,
-        NUM_AUDIO_DEVICES
-    };
-
-    struct BatteryAudioFlingerUsageInfo {
-        int refCount; // how many audio streams are being played
-        int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used
-        int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms
-        // totalTime[]: total time of audio output devices usage
-        int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms
-    };
-
-    // This varialble is used to record the usage of audio output device
-    // for battery app
-    BatteryAudioFlingerUsageInfo mBatteryAudio;
-
     // Collect info of the codec usage from media player and media recorder
     virtual void                addBatteryData(uint32_t params);
     // API for the Battery app to pull the data of codecs usage
     virtual status_t            pullBatteryData(Parcel* reply);
 private:
+    struct BatteryTracker {
+        BatteryTracker();
+        // Collect info of the codec usage from media player and media recorder
+        void addBatteryData(uint32_t params);
+        // API for the Battery app to pull the data of codecs usage
+        status_t pullBatteryData(Parcel* reply);
+
+    private:
+        // For battery usage tracking purpose
+        struct BatteryUsageInfo {
+            // how many streams are being played by one UID
+            int     refCount;
+            // a temp variable to store the duration(ms) of audio codecs
+            // when we start a audio codec, we minus the system time from audioLastTime
+            // when we pause it, we add the system time back to the audioLastTime
+            // so after the pause, audioLastTime = pause time - start time
+            // if multiple audio streams are played (or recorded), then audioLastTime
+            // = the total playing time of all the streams
+            int32_t audioLastTime;
+            // when all the audio streams are being paused, we assign audioLastTime to
+            // this variable, so this value could be provided to the battery app
+            // in the next pullBatteryData call
+            int32_t audioTotalTime;
+
+            int32_t videoLastTime;
+            int32_t videoTotalTime;
+        };
+        KeyedVector<int, BatteryUsageInfo>    mBatteryData;
+
+        enum {
+            SPEAKER,
+            OTHER_AUDIO_DEVICE,
+            SPEAKER_AND_OTHER,
+            NUM_AUDIO_DEVICES
+        };
+
+        struct BatteryAudioFlingerUsageInfo {
+            int refCount; // how many audio streams are being played
+            int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used
+            int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms
+            // totalTime[]: total time of audio output devices usage
+            int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms
+        };
+
+        // This varialble is used to record the usage of audio output device
+        // for battery app
+        BatteryAudioFlingerUsageInfo mBatteryAudio;
+
+        mutable Mutex mLock;
+    };
+    BatteryTracker mBatteryTracker;
 
     class Client : public BnMediaPlayer {
         // IMediaPlayer interface
         virtual void            disconnect();
         virtual status_t        setVideoSurfaceTexture(
                                         const sp<IGraphicBufferProducer>& bufferProducer);
+        virtual status_t        setBufferingSettings(const BufferingSettings& buffering) override;
+        virtual status_t        getDefaultBufferingSettings(
+                                        BufferingSettings* buffering /* nonnull */) override;
         virtual status_t        prepareAsync();
         virtual status_t        start();
         virtual status_t        stop();
@@ -298,7 +321,9 @@
         virtual status_t        setSyncSettings(const AVSyncSettings& rate, float videoFpsHint);
         virtual status_t        getSyncSettings(AVSyncSettings* rate /* nonnull */,
                                                 float* videoFps /* nonnull */);
-        virtual status_t        seekTo(int msec);
+        virtual status_t        seekTo(
+                int msec,
+                MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC);
         virtual status_t        getCurrentPosition(int* msec);
         virtual status_t        getDuration(int* msec);
         virtual status_t        reset();
@@ -318,6 +343,11 @@
         virtual status_t        getRetransmitEndpoint(struct sockaddr_in* endpoint);
         virtual status_t        setNextPlayer(const sp<IMediaPlayer>& player);
 
+        virtual VolumeShaper::Status applyVolumeShaper(
+                                        const sp<VolumeShaper::Configuration>& configuration,
+                                        const sp<VolumeShaper::Operation>& operation) override;
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id) override;
+
         sp<MediaPlayerBase>     createPlayer(player_type playerType);
 
         virtual status_t        setDataSource(
@@ -342,24 +372,40 @@
         virtual status_t        dump(int fd, const Vector<String16>& args);
 
                 audio_session_t getAudioSessionId() { return mAudioSessionId; }
+        // Modular DRM
+        virtual status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId);
+        virtual status_t releaseDrm();
 
     private:
-        class ServiceDeathNotifier: public IBinder::DeathRecipient
+        class ServiceDeathNotifier:
+                public IBinder::DeathRecipient,
+                public ::android::hardware::hidl_death_recipient
         {
         public:
             ServiceDeathNotifier(
                     const sp<IBinder>& service,
                     const sp<MediaPlayerBase>& listener,
                     int which);
+            ServiceDeathNotifier(
+                    const sp<IOmx>& omx,
+                    const sp<MediaPlayerBase>& listener,
+                    int which);
             virtual ~ServiceDeathNotifier();
             virtual void binderDied(const wp<IBinder>& who);
+            virtual void serviceDied(
+                    uint64_t cookie,
+                    const wp<::android::hidl::base::V1_0::IBase>& who);
+            void unlinkToDeath();
 
         private:
             int mWhich;
             sp<IBinder> mService;
+            sp<IOmx> mOmx;
             wp<MediaPlayerBase> mListener;
         };
 
+        void clearDeathNotifiers_l();
+
         friend class MediaPlayerService;
                                 Client( const sp<MediaPlayerService>& service,
                                         pid_t pid,
@@ -402,7 +448,7 @@
                     int32_t                     mConnId;
                     audio_session_t             mAudioSessionId;
                     audio_attributes_t *        mAudioAttributes;
-                    uid_t                       mUID;
+                    uid_t                       mUid;
                     sp<ANativeWindow>           mConnectedWindow;
                     sp<IBinder>                 mConnectedWindowBinder;
                     struct sockaddr_in          mRetransmitEndpoint;
@@ -419,8 +465,8 @@
         // getMetadata clears this set.
         media::Metadata::Filter mMetadataUpdated;  // protected by mLock
 
-        sp<IBinder::DeathRecipient> mExtractorDeathListener;
-        sp<IBinder::DeathRecipient> mCodecDeathListener;
+        sp<ServiceDeathNotifier> mExtractorDeathListener;
+        sp<ServiceDeathNotifier> mCodecDeathListener;
 #if CALLBACK_ANTAGONIZER
                     Antagonizer*                mAntagonizer;
 #endif
diff --git a/media/libmediaplayerservice/MediaRecorderClient.cpp b/media/libmediaplayerservice/MediaRecorderClient.cpp
index 609b00d..9b9b3bb 100644
--- a/media/libmediaplayerservice/MediaRecorderClient.cpp
+++ b/media/libmediaplayerservice/MediaRecorderClient.cpp
@@ -52,7 +52,7 @@
     return ok;
 }
 
-status_t MediaRecorderClient::setInputSurface(const sp<IGraphicBufferConsumer>& surface)
+status_t MediaRecorderClient::setInputSurface(const sp<PersistentSurface>& surface)
 {
     ALOGV("setInputSurface");
     Mutex::Autolock lock(mLock);
@@ -161,15 +161,26 @@
     return mRecorder->setAudioEncoder((audio_encoder)ae);
 }
 
-status_t MediaRecorderClient::setOutputFile(int fd, int64_t offset, int64_t length)
+status_t MediaRecorderClient::setOutputFile(int fd)
 {
-    ALOGV("setOutputFile(%d, %lld, %lld)", fd, (long long)offset, (long long)length);
+    ALOGV("setOutputFile(%d)", fd);
     Mutex::Autolock lock(mLock);
     if (mRecorder == NULL) {
         ALOGE("recorder is not initialized");
         return NO_INIT;
     }
-    return mRecorder->setOutputFile(fd, offset, length);
+    return mRecorder->setOutputFile(fd);
+}
+
+status_t MediaRecorderClient::setNextOutputFile(int fd)
+{
+    ALOGV("setNextOutputFile(%d)", fd);
+    Mutex::Autolock lock(mLock);
+    if (mRecorder == NULL) {
+        ALOGE("recorder is not initialized");
+        return NO_INIT;
+    }
+    return mRecorder->setNextOutputFile(fd);
 }
 
 status_t MediaRecorderClient::setVideoSize(int width, int height)
@@ -227,6 +238,17 @@
     return mRecorder->getMaxAmplitude(max);
 }
 
+status_t MediaRecorderClient::getMetrics(Parcel* reply)
+{
+    ALOGV("MediaRecorderClient::getMetrics");
+    Mutex::Autolock lock(mLock);
+    if (mRecorder == NULL) {
+        ALOGE("recorder is not initialized");
+        return NO_INIT;
+    }
+    return mRecorder->getMetrics(reply);
+}
+
 status_t MediaRecorderClient::start()
 {
     ALOGV("start");
@@ -317,6 +339,7 @@
         wp<MediaRecorderClient> client(this);
         mMediaPlayerService->removeMediaRecorderClient(client);
     }
+    clearDeathNotifiers_l();
     return NO_ERROR;
 }
 
@@ -340,15 +363,25 @@
         const sp<IMediaRecorderClient>& listener,
         int which) {
     mService = service;
+    mOmx = nullptr;
+    mListener = listener;
+    mWhich = which;
+}
+
+MediaRecorderClient::ServiceDeathNotifier::ServiceDeathNotifier(
+        const sp<IOmx>& omx,
+        const sp<IMediaRecorderClient>& listener,
+        int which) {
+    mService = nullptr;
+    mOmx = omx;
     mListener = listener;
     mWhich = which;
 }
 
 MediaRecorderClient::ServiceDeathNotifier::~ServiceDeathNotifier() {
-    mService->unlinkToDeath(this);
 }
 
-void  MediaRecorderClient::ServiceDeathNotifier::binderDied(const wp<IBinder>& /*who*/) {
+void MediaRecorderClient::ServiceDeathNotifier::binderDied(const wp<IBinder>& /*who*/) {
     sp<IMediaRecorderClient> listener = mListener.promote();
     if (listener != NULL) {
         listener->notify(MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED, mWhich);
@@ -357,10 +390,43 @@
     }
 }
 
+void MediaRecorderClient::ServiceDeathNotifier::serviceDied(
+        uint64_t /* cookie */,
+        const wp<::android::hidl::base::V1_0::IBase>& /* who */) {
+    sp<IMediaRecorderClient> listener = mListener.promote();
+    if (listener != NULL) {
+        listener->notify(MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED, mWhich);
+    } else {
+        ALOGW("listener for process %d death is gone", mWhich);
+    }
+}
+
+void MediaRecorderClient::ServiceDeathNotifier::unlinkToDeath() {
+    if (mService != nullptr) {
+        mService->unlinkToDeath(this);
+        mService = nullptr;
+    } else if (mOmx != nullptr) {
+        mOmx->unlinkToDeath(this);
+        mOmx = nullptr;
+    }
+}
+
+void MediaRecorderClient::clearDeathNotifiers_l() {
+    if (mCameraDeathListener != nullptr) {
+        mCameraDeathListener->unlinkToDeath();
+        mCameraDeathListener = nullptr;
+    }
+    if (mCodecDeathListener != nullptr) {
+        mCodecDeathListener->unlinkToDeath();
+        mCodecDeathListener = nullptr;
+    }
+}
+
 status_t MediaRecorderClient::setListener(const sp<IMediaRecorderClient>& listener)
 {
     ALOGV("setListener");
     Mutex::Autolock lock(mLock);
+    clearDeathNotifiers_l();
     if (mRecorder == NULL) {
         ALOGE("recorder is not initialized");
         return NO_INIT;
@@ -384,10 +450,27 @@
     }
     sCameraChecked = true;
 
-    binder = sm->getService(String16("media.codec"));
-    mCodecDeathListener = new ServiceDeathNotifier(binder, listener,
-            MediaPlayerService::MEDIACODEC_PROCESS_DEATH);
-    binder->linkToDeath(mCodecDeathListener);
+    if (property_get_bool("persist.media.treble_omx", true)) {
+        // Treble IOmx
+        sp<IOmx> omx = IOmx::getService();
+        if (omx == nullptr) {
+            ALOGE("Treble IOmx not available");
+            return NO_INIT;
+        }
+        mCodecDeathListener = new ServiceDeathNotifier(omx, listener,
+                MediaPlayerService::MEDIACODEC_PROCESS_DEATH);
+        omx->linkToDeath(mCodecDeathListener, 0);
+    } else {
+        // Legacy IOMX
+        binder = sm->getService(String16("media.codec"));
+        if (binder == NULL) {
+           ALOGE("Unable to connect to media codec service");
+           return NO_INIT;
+        }
+        mCodecDeathListener = new ServiceDeathNotifier(binder, listener,
+                MediaPlayerService::MEDIACODEC_PROCESS_DEATH);
+        binder->linkToDeath(mCodecDeathListener);
+    }
 
     return OK;
 }
diff --git a/media/libmediaplayerservice/MediaRecorderClient.h b/media/libmediaplayerservice/MediaRecorderClient.h
index eceb653..711db2c 100644
--- a/media/libmediaplayerservice/MediaRecorderClient.h
+++ b/media/libmediaplayerservice/MediaRecorderClient.h
@@ -20,31 +20,46 @@
 
 #include <media/IMediaRecorder.h>
 
+#include <android/hardware/media/omx/1.0/IOmx.h>
+
 namespace android {
 
-class MediaRecorderBase;
+struct MediaRecorderBase;
 class MediaPlayerService;
 class ICameraRecordingProxy;
-class IGraphicBufferProducer;
 
 class MediaRecorderClient : public BnMediaRecorder
 {
-    class ServiceDeathNotifier: public IBinder::DeathRecipient
+    typedef ::android::hardware::media::omx::V1_0::IOmx IOmx;
+
+    class ServiceDeathNotifier :
+            public IBinder::DeathRecipient,
+            public ::android::hardware::hidl_death_recipient
     {
     public:
         ServiceDeathNotifier(
                 const sp<IBinder>& service,
                 const sp<IMediaRecorderClient>& listener,
                 int which);
+        ServiceDeathNotifier(
+                const sp<IOmx>& omx,
+                const sp<IMediaRecorderClient>& listener,
+                int which);
         virtual ~ServiceDeathNotifier();
         virtual void binderDied(const wp<IBinder>& who);
-
+        virtual void serviceDied(
+                uint64_t cookie,
+                const wp<::android::hidl::base::V1_0::IBase>& who);
+        void unlinkToDeath();
     private:
         int mWhich;
         sp<IBinder> mService;
+        sp<IOmx> mOmx;
         wp<IMediaRecorderClient> mListener;
     };
 
+    void clearDeathNotifiers_l();
+
 public:
     virtual     status_t   setCamera(const sp<hardware::ICamera>& camera,
                                     const sp<ICameraRecordingProxy>& proxy);
@@ -54,8 +69,8 @@
     virtual     status_t   setOutputFormat(int of);
     virtual     status_t   setVideoEncoder(int ve);
     virtual     status_t   setAudioEncoder(int ae);
-    virtual     status_t   setOutputFile(int fd, int64_t offset,
-                                                  int64_t length);
+    virtual     status_t   setOutputFile(int fd);
+    virtual     status_t   setNextOutputFile(int fd);
     virtual     status_t   setVideoSize(int width, int height);
     virtual     status_t   setVideoFrameRate(int frames_per_second);
     virtual     status_t   setParameters(const String8& params);
@@ -64,6 +79,7 @@
     virtual     status_t   setClientName(const String16& clientName);
     virtual     status_t   prepare();
     virtual     status_t   getMaxAmplitude(int* max);
+    virtual     status_t   getMetrics(Parcel* reply);
     virtual     status_t   start();
     virtual     status_t   stop();
     virtual     status_t   reset();
@@ -73,7 +89,7 @@
     virtual     status_t   close();
     virtual     status_t   release();
     virtual     status_t   dump(int fd, const Vector<String16>& args);
-    virtual     status_t   setInputSurface(const sp<IGraphicBufferConsumer>& surface);
+    virtual     status_t   setInputSurface(const sp<PersistentSurface>& surface);
     virtual     sp<IGraphicBufferProducer> querySurfaceMediaSource();
 
 private:
@@ -85,8 +101,8 @@
                                                                const String16& opPackageName);
     virtual                ~MediaRecorderClient();
 
-    sp<IBinder::DeathRecipient> mCameraDeathListener;
-    sp<IBinder::DeathRecipient> mCodecDeathListener;
+    sp<ServiceDeathNotifier> mCameraDeathListener;
+    sp<ServiceDeathNotifier> mCodecDeathListener;
 
     pid_t                  mPid;
     Mutex                  mLock;
diff --git a/media/libmediaplayerservice/StagefrightRecorder.cpp b/media/libmediaplayerservice/StagefrightRecorder.cpp
index bd1fd7c..e1d762f 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.cpp
+++ b/media/libmediaplayerservice/StagefrightRecorder.cpp
@@ -30,6 +30,7 @@
 #include <binder/IServiceManager.h>
 
 #include <media/IMediaPlayerService.h>
+#include <media/MediaAnalyticsItem.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -45,6 +46,7 @@
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/MediaCodecSource.h>
+#include <media/stagefright/PersistentSurface.h>
 #include <media/MediaProfiles.h>
 #include <camera/CameraParameters.h>
 
@@ -64,6 +66,26 @@
 static const float kMinTypicalDisplayRefreshingRate = kTypicalDisplayRefreshingRate / 2;
 static const int kMaxNumVideoTemporalLayers = 8;
 
+// key for media statistics
+static const char *kKeyRecorder = "recorder";
+// attrs for media statistics
+static const char *kRecorderHeight = "android.media.mediarecorder.height";
+static const char *kRecorderWidth = "android.media.mediarecorder.width";
+static const char *kRecorderFrameRate = "android.media.mediarecorder.frame-rate";
+static const char *kRecorderVideoBitrate = "android.media.mediarecorder.video-bitrate";
+static const char *kRecorderAudioSampleRate = "android.media.mediarecorder.audio-samplerate";
+static const char *kRecorderAudioChannels = "android.media.mediarecorder.audio-channels";
+static const char *kRecorderAudioBitrate = "android.media.mediarecorder.audio-bitrate";
+static const char *kRecorderVideoIframeInterval = "android.media.mediarecorder.video-iframe-interval";
+static const char *kRecorderMovieTimescale = "android.media.mediarecorder.movie-timescale";
+static const char *kRecorderAudioTimescale = "android.media.mediarecorder.audio-timescale";
+static const char *kRecorderVideoTimescale = "android.media.mediarecorder.video-timescale";
+static const char *kRecorderVideoProfile = "android.media.mediarecorder.video-encoder-profile";
+static const char *kRecorderVideoLevel = "android.media.mediarecorder.video-encoder-level";
+static const char *kRecorderCaptureFpsEnable = "android.media.mediarecorder.capture-fpsenable";
+static const char *kRecorderCaptureFps = "android.media.mediarecorder.capture-fps";
+static const char *kRecorderRotation = "android.media.mediarecorder.rotation";
+
 // To collect the encoder usage for the battery app
 static void addBatteryData(uint32_t params) {
     sp<IBinder> binder =
@@ -84,6 +106,8 @@
       mStarted(false) {
 
     ALOGV("Constructor");
+
+    mAnalyticsDirty = false;
     reset();
 }
 
@@ -94,6 +118,80 @@
     if (mLooper != NULL) {
         mLooper->stop();
     }
+
+    // log the current record, provided it has some information worth recording
+    if (mAnalyticsDirty && mAnalyticsItem != NULL) {
+        updateMetrics();
+        if (mAnalyticsItem->count() > 0) {
+            mAnalyticsItem->setFinalized(true);
+            mAnalyticsItem->selfrecord();
+        }
+        delete mAnalyticsItem;
+        mAnalyticsItem = NULL;
+    }
+}
+
+void StagefrightRecorder::updateMetrics() {
+    ALOGV("updateMetrics");
+
+    // we'll populate the values from the raw fields.
+    // (NOT going to populate as we go through the various set* ops)
+
+    // TBD mOutputFormat  = OUTPUT_FORMAT_THREE_GPP;
+    // TBD mAudioEncoder  = AUDIO_ENCODER_AMR_NB;
+    // TBD mVideoEncoder  = VIDEO_ENCODER_DEFAULT;
+    mAnalyticsItem->setInt32(kRecorderHeight, mVideoHeight);
+    mAnalyticsItem->setInt32(kRecorderWidth, mVideoWidth);
+    mAnalyticsItem->setInt32(kRecorderFrameRate, mFrameRate);
+    mAnalyticsItem->setInt32(kRecorderVideoBitrate, mVideoBitRate);
+    mAnalyticsItem->setInt32(kRecorderAudioSampleRate, mSampleRate);
+    mAnalyticsItem->setInt32(kRecorderAudioChannels, mAudioChannels);
+    mAnalyticsItem->setInt32(kRecorderAudioBitrate, mAudioBitRate);
+    // TBD mInterleaveDurationUs = 0;
+    mAnalyticsItem->setInt32(kRecorderVideoIframeInterval, mIFramesIntervalSec);
+    // TBD mAudioSourceNode = 0;
+    // TBD mUse64BitFileOffset = false;
+    mAnalyticsItem->setInt32(kRecorderMovieTimescale, mMovieTimeScale);
+    mAnalyticsItem->setInt32(kRecorderAudioTimescale, mAudioTimeScale);
+    mAnalyticsItem->setInt32(kRecorderVideoTimescale, mVideoTimeScale);
+    // TBD mCameraId        = 0;
+    // TBD mStartTimeOffsetMs = -1;
+    mAnalyticsItem->setInt32(kRecorderVideoProfile, mVideoEncoderProfile);
+    mAnalyticsItem->setInt32(kRecorderVideoLevel, mVideoEncoderLevel);
+    // TBD mMaxFileDurationUs = 0;
+    // TBD mMaxFileSizeBytes = 0;
+    // TBD mTrackEveryTimeDurationUs = 0;
+    mAnalyticsItem->setInt32(kRecorderCaptureFpsEnable, mCaptureFpsEnable);
+    mAnalyticsItem->setDouble(kRecorderCaptureFps, mCaptureFps);
+    // TBD mCaptureFps = -1.0;
+    // TBD mCameraSourceTimeLapse = NULL;
+    // TBD mMetaDataStoredInVideoBuffers = kMetadataBufferTypeInvalid;
+    // TBD mEncoderProfiles = MediaProfiles::getInstance();
+    mAnalyticsItem->setInt32(kRecorderRotation, mRotationDegrees);
+    // PII mLatitudex10000 = -3600000;
+    // PII mLongitudex10000 = -3600000;
+    // TBD mTotalBitRate = 0;
+
+    // TBD: some duration information (capture, paused)
+    //
+
+}
+
+void StagefrightRecorder::resetMetrics() {
+    ALOGV("resetMetrics");
+    // flush anything we have, restart the record
+    if (mAnalyticsDirty && mAnalyticsItem != NULL) {
+        updateMetrics();
+        if (mAnalyticsItem->count() > 0) {
+            mAnalyticsItem->setFinalized(true);
+            mAnalyticsItem->selfrecord();
+        }
+        delete mAnalyticsItem;
+        mAnalyticsItem = NULL;
+    }
+    mAnalyticsItem = new MediaAnalyticsItem(kKeyRecorder);
+    (void) mAnalyticsItem->generateSessionID();
+    mAnalyticsDirty = false;
 }
 
 status_t StagefrightRecorder::init() {
@@ -248,17 +346,14 @@
 }
 
 status_t StagefrightRecorder::setInputSurface(
-        const sp<IGraphicBufferConsumer>& surface) {
+        const sp<PersistentSurface>& surface) {
     mPersistentSurface = surface;
 
     return OK;
 }
 
-status_t StagefrightRecorder::setOutputFile(int fd, int64_t offset, int64_t length) {
-    ALOGV("setOutputFile: %d, %lld, %lld", fd, (long long)offset, (long long)length);
-    // These don't make any sense, do they?
-    CHECK_EQ(offset, 0ll);
-    CHECK_EQ(length, 0ll);
+status_t StagefrightRecorder::setOutputFile(int fd) {
+    ALOGV("setOutputFile: %d", fd);
 
     if (fd < 0) {
         ALOGE("Invalid file descriptor: %d", fd);
@@ -276,15 +371,39 @@
     return OK;
 }
 
+status_t StagefrightRecorder::setNextOutputFile(int fd) {
+    Mutex::Autolock autolock(mLock);
+    // Only support MPEG4
+    if (mOutputFormat != OUTPUT_FORMAT_MPEG_4) {
+        ALOGE("Only MP4 file format supports setting next output file");
+        return INVALID_OPERATION;
+    }
+    ALOGV("setNextOutputFile: %d", fd);
+
+    if (fd < 0) {
+        ALOGE("Invalid file descriptor: %d", fd);
+        return -EBADF;
+    }
+
+    // start with a clean, empty file
+    ftruncate(fd, 0);
+    int nextFd = dup(fd);
+    if (mWriter == NULL) {
+        ALOGE("setNextOutputFile failed. Writer has been freed");
+        return INVALID_OPERATION;
+    }
+    return mWriter->setNextFd(nextFd);
+}
+
 // Attempt to parse an float literal optionally surrounded by whitespace,
 // returns true on success, false otherwise.
-static bool safe_strtof(const char *s, float *val) {
+static bool safe_strtod(const char *s, double *val) {
     char *end;
 
     // It is lame, but according to man page, we have to set errno to 0
-    // before calling strtof().
+    // before calling strtod().
     errno = 0;
-    *val = strtof(s, &end);
+    *val = strtod(s, &end);
 
     if (end == s || errno == ERANGE) {
         return false;
@@ -365,6 +484,7 @@
 
     // Additional check on the sample rate will be performed later.
     mSampleRate = sampleRate;
+
     return OK;
 }
 
@@ -377,6 +497,7 @@
 
     // Additional check on the number of channels will be performed later.
     mAudioChannels = channels;
+
     return OK;
 }
 
@@ -585,19 +706,14 @@
     return OK;
 }
 
-status_t StagefrightRecorder::setParamCaptureFps(float fps) {
+status_t StagefrightRecorder::setParamCaptureFps(double fps) {
     ALOGV("setParamCaptureFps: %.2f", fps);
 
-    int64_t timeUs = (int64_t) (1000000.0 / fps + 0.5f);
-
-    // Not allowing time more than a day
-    if (timeUs <= 0 || timeUs > 86400*1E6) {
-        ALOGE("Time between frame capture (%lld) is out of range [0, 1 Day]", (long long)timeUs);
+    if (!(fps >= 1.0 / 86400)) {
+        ALOGE("FPS is too small");
         return BAD_VALUE;
     }
-
     mCaptureFps = fps;
-    mTimeBetweenCaptureUs = timeUs;
     return OK;
 }
 
@@ -725,8 +841,8 @@
             return setParamCaptureFpsEnable(captureFpsEnable);
         }
     } else if (key == "time-lapse-fps") {
-        float fps;
-        if (safe_strtof(value.string(), &fps)) {
+        double fps;
+        if (safe_strtod(value.string(), &fps)) {
             return setParamCaptureFps(fps);
         }
     } else {
@@ -834,6 +950,8 @@
 }
 
 status_t StagefrightRecorder::prepare() {
+    ALOGV("prepare");
+    Mutex::Autolock autolock(mLock);
     if (mVideoSource == VIDEO_SOURCE_SURFACE) {
         return prepareInternal();
     }
@@ -842,6 +960,7 @@
 
 status_t StagefrightRecorder::start() {
     ALOGV("start");
+    Mutex::Autolock autolock(mLock);
     if (mOutputFd < 0) {
         ALOGE("Output file descriptor is invalid");
         return INVALID_OPERATION;
@@ -884,7 +1003,10 @@
         case OUTPUT_FORMAT_RTP_AVP:
         case OUTPUT_FORMAT_MPEG2TS:
         {
-            status = mWriter->start();
+            sp<MetaData> meta = new MetaData;
+            int64_t startTimeUs = systemTime() / 1000;
+            meta->setInt64(kKeyTime, startTimeUs);
+            status = mWriter->start(meta.get());
             break;
         }
 
@@ -902,6 +1024,7 @@
     }
 
     if ((status == OK) && (!mStarted)) {
+        mAnalyticsDirty = true;
         mStarted = true;
 
         uint32_t params = IMediaPlayerService::kBatteryDataCodecStarted;
@@ -1444,16 +1567,15 @@
     videoSize.width = mVideoWidth;
     videoSize.height = mVideoHeight;
     if (mCaptureFpsEnable) {
-        if (mTimeBetweenCaptureUs < 0) {
-            ALOGE("Invalid mTimeBetweenTimeLapseFrameCaptureUs value: %lld",
-                    (long long)mTimeBetweenCaptureUs);
+        if (!(mCaptureFps > 0.)) {
+            ALOGE("Invalid mCaptureFps value: %lf", mCaptureFps);
             return BAD_VALUE;
         }
 
         mCameraSourceTimeLapse = CameraSourceTimeLapse::CreateFromCamera(
                 mCamera, mCameraProxy, mCameraId, mClientName, mClientUid, mClientPid,
                 videoSize, mFrameRate, mPreviewSurface,
-                mTimeBetweenCaptureUs);
+                std::llround(1e6 / mCaptureFps));
         *cameraSource = mCameraSourceTimeLapse;
     } else {
         *cameraSource = CameraSource::CreateFromCamera(
@@ -1493,7 +1615,7 @@
 }
 
 status_t StagefrightRecorder::setupVideoEncoder(
-        sp<MediaSource> cameraSource,
+        const sp<MediaSource> &cameraSource,
         sp<MediaCodecSource> *source) {
     source->clear();
 
@@ -1549,12 +1671,11 @@
 
         // set up time lapse/slow motion for surface source
         if (mCaptureFpsEnable) {
-            if (mTimeBetweenCaptureUs <= 0) {
-                ALOGE("Invalid mTimeBetweenCaptureUs value: %lld",
-                        (long long)mTimeBetweenCaptureUs);
+            if (!(mCaptureFps > 0.)) {
+                ALOGE("Invalid mCaptureFps value: %lf", mCaptureFps);
                 return BAD_VALUE;
             }
-            format->setInt64("time-lapse", mTimeBetweenCaptureUs);
+            format->setDouble("time-lapse-fps", mCaptureFps);
         }
     }
 
@@ -1784,15 +1905,17 @@
         return OK;
     }
 
+    mPauseStartTimeUs = systemTime() / 1000;
+    sp<MetaData> meta = new MetaData;
+    meta->setInt64(kKeyTime, mPauseStartTimeUs);
+
     if (mAudioEncoderSource != NULL) {
         mAudioEncoderSource->pause();
     }
     if (mVideoEncoderSource != NULL) {
-        mVideoEncoderSource->pause();
+        mVideoEncoderSource->pause(meta.get());
     }
 
-    mPauseStartTimeUs = systemTime() / 1000;
-
     return OK;
 }
 
@@ -1807,6 +1930,8 @@
         return OK;
     }
 
+    int64_t resumeStartTimeUs = systemTime() / 1000;
+
     int64_t bufferStartTimeUs = 0;
     bool allSourcesStarted = true;
     for (const auto &source : { mAudioEncoderSource, mVideoEncoderSource }) {
@@ -1827,18 +1952,20 @@
             mPauseStartTimeUs = bufferStartTimeUs;
         }
         // 30 ms buffer to avoid timestamp overlap
-        mTotalPausedDurationUs += (systemTime() / 1000) - mPauseStartTimeUs - 30000;
+        mTotalPausedDurationUs += resumeStartTimeUs - mPauseStartTimeUs - 30000;
     }
     double timeOffset = -mTotalPausedDurationUs;
     if (mCaptureFpsEnable) {
         timeOffset *= mCaptureFps / mFrameRate;
     }
+    sp<MetaData> meta = new MetaData;
+    meta->setInt64(kKeyTime, resumeStartTimeUs);
     for (const auto &source : { mAudioEncoderSource, mVideoEncoderSource }) {
         if (source == nullptr) {
             continue;
         }
         source->setInputBufferTimeOffset((int64_t)timeOffset);
-        source->start();
+        source->start(meta.get());
     }
     mPauseStartTimeUs = 0;
 
@@ -1847,6 +1974,7 @@
 
 status_t StagefrightRecorder::stop() {
     ALOGV("stop");
+    Mutex::Autolock autolock(mLock);
     status_t err = OK;
 
     if (mCaptureFpsEnable && mCameraSourceTimeLapse != NULL) {
@@ -1854,10 +1982,19 @@
         mCameraSourceTimeLapse = NULL;
     }
 
+    if (mVideoEncoderSource != NULL) {
+        int64_t stopTimeUs = systemTime() / 1000;
+        sp<MetaData> meta = new MetaData;
+        err = mVideoEncoderSource->setStopStimeUs(stopTimeUs);
+    }
+
     if (mWriter != NULL) {
         err = mWriter->stop();
         mWriter.clear();
     }
+
+    resetMetrics();
+
     mTotalPausedDurationUs = 0;
     mPauseStartTimeUs = 0;
 
@@ -1929,8 +2066,7 @@
     mMaxFileSizeBytes = 0;
     mTrackEveryTimeDurationUs = 0;
     mCaptureFpsEnable = false;
-    mCaptureFps = 0.0f;
-    mTimeBetweenCaptureUs = -1;
+    mCaptureFps = -1.0;
     mCameraSourceTimeLapse = NULL;
     mMetaDataStoredInVideoBuffers = kMetadataBufferTypeInvalid;
     mEncoderProfiles = MediaProfiles::getInstance();
@@ -1961,9 +2097,27 @@
     return OK;
 }
 
+status_t StagefrightRecorder::getMetrics(Parcel *reply) {
+    ALOGD("StagefrightRecorder::getMetrics");
+
+    if (reply == NULL) {
+        ALOGE("Null pointer argument");
+        return BAD_VALUE;
+    }
+
+    if (mAnalyticsItem == NULL) {
+        return UNKNOWN_ERROR;
+    }
+
+    updateMetrics();
+    mAnalyticsItem->writeToParcel(reply);
+    return OK;
+}
+
 status_t StagefrightRecorder::dump(
         int fd, const Vector<String16>& args) const {
     ALOGV("dump");
+    Mutex::Autolock autolock(mLock);
     const size_t SIZE = 256;
     char buffer[SIZE];
     String8 result;
diff --git a/media/libmediaplayerservice/StagefrightRecorder.h b/media/libmediaplayerservice/StagefrightRecorder.h
index d7f43bc..9a6c4da 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.h
+++ b/media/libmediaplayerservice/StagefrightRecorder.h
@@ -18,6 +18,7 @@
 
 #define STAGEFRIGHT_RECORDER_H_
 
+#include <media/MediaAnalyticsItem.h>
 #include <media/MediaRecorderBase.h>
 #include <camera/CameraParameters.h>
 #include <utils/String8.h>
@@ -38,15 +39,11 @@
 class MetaData;
 struct AudioSource;
 class MediaProfiles;
-class IGraphicBufferConsumer;
-class IGraphicBufferProducer;
-class SurfaceMediaSource;
 struct ALooper;
 
 struct StagefrightRecorder : public MediaRecorderBase {
-    StagefrightRecorder(const String16 &opPackageName);
+    explicit StagefrightRecorder(const String16 &opPackageName);
     virtual ~StagefrightRecorder();
-
     virtual status_t init();
     virtual status_t setAudioSource(audio_source_t as);
     virtual status_t setVideoSource(video_source vs);
@@ -57,11 +54,12 @@
     virtual status_t setVideoFrameRate(int frames_per_second);
     virtual status_t setCamera(const sp<hardware::ICamera>& camera, const sp<ICameraRecordingProxy>& proxy);
     virtual status_t setPreviewSurface(const sp<IGraphicBufferProducer>& surface);
-    virtual status_t setInputSurface(const sp<IGraphicBufferConsumer>& surface);
-    virtual status_t setOutputFile(int fd, int64_t offset, int64_t length);
-    virtual status_t setParameters(const String8& params);
-    virtual status_t setListener(const sp<IMediaRecorderClient>& listener);
-    virtual status_t setClientName(const String16& clientName);
+    virtual status_t setInputSurface(const sp<PersistentSurface>& surface);
+    virtual status_t setOutputFile(int fd);
+    virtual status_t setNextOutputFile(int fd);
+    virtual status_t setParameters(const String8 &params);
+    virtual status_t setListener(const sp<IMediaRecorderClient> &listener);
+    virtual status_t setClientName(const String16 &clientName);
     virtual status_t prepare();
     virtual status_t start();
     virtual status_t pause();
@@ -70,15 +68,17 @@
     virtual status_t close();
     virtual status_t reset();
     virtual status_t getMaxAmplitude(int *max);
-    virtual status_t dump(int fd, const Vector<String16>& args) const;
+    virtual status_t getMetrics(Parcel *reply);
+    virtual status_t dump(int fd, const Vector<String16> &args) const;
     // Querying a SurfaceMediaSourcer
     virtual sp<IGraphicBufferProducer> querySurfaceMediaSource() const;
 
 private:
+    mutable Mutex mLock;
     sp<hardware::ICamera> mCamera;
     sp<ICameraRecordingProxy> mCameraProxy;
     sp<IGraphicBufferProducer> mPreviewSurface;
-    sp<IGraphicBufferConsumer> mPersistentSurface;
+    sp<PersistentSurface> mPersistentSurface;
     sp<IMediaRecorderClient> mListener;
     String16 mClientName;
     uid_t mClientUid;
@@ -87,6 +87,11 @@
     int mOutputFd;
     sp<AudioSource> mAudioSourceNode;
 
+    MediaAnalyticsItem *mAnalyticsItem;
+    bool mAnalyticsDirty;
+    void resetMetrics();
+    void updateMetrics();
+
     audio_source_t mAudioSource;
     video_source mVideoSource;
     output_format mOutputFormat;
@@ -117,7 +122,7 @@
     int32_t mTotalBitRate;
 
     bool mCaptureFpsEnable;
-    float mCaptureFps;
+    double mCaptureFps;
     int64_t mTimeBetweenCaptureUs;
     sp<CameraSourceTimeLapse> mCameraSourceTimeLapse;
 
@@ -158,7 +163,7 @@
     status_t setupMediaSource(sp<MediaSource> *mediaSource);
     status_t setupCameraSource(sp<CameraSource> *cameraSource);
     status_t setupAudioEncoder(const sp<MediaWriter>& writer);
-    status_t setupVideoEncoder(sp<MediaSource> cameraSource, sp<MediaCodecSource> *source);
+    status_t setupVideoEncoder(const sp<MediaSource>& cameraSource, sp<MediaCodecSource> *source);
 
     // Encoding parameter handling utilities
     status_t setParameter(const String8 &key, const String8 &value);
@@ -167,7 +172,7 @@
     status_t setParamAudioSamplingRate(int32_t sampleRate);
     status_t setParamAudioTimeScale(int32_t timeScale);
     status_t setParamCaptureFpsEnable(int32_t timeLapseEnable);
-    status_t setParamCaptureFps(float fps);
+    status_t setParamCaptureFps(double fps);
     status_t setParamVideoEncodingBitRate(int32_t bitRate);
     status_t setParamVideoIFramesInterval(int32_t seconds);
     status_t setParamVideoEncoderProfile(int32_t profile);
diff --git a/media/libmediaplayerservice/TestPlayerStub.h b/media/libmediaplayerservice/TestPlayerStub.h
index 55bf2c8..11fddf6 100644
--- a/media/libmediaplayerservice/TestPlayerStub.h
+++ b/media/libmediaplayerservice/TestPlayerStub.h
@@ -87,7 +87,11 @@
     virtual status_t stop()  {return mPlayer->stop();}
     virtual status_t pause()  {return mPlayer->pause();}
     virtual bool isPlaying() {return mPlayer->isPlaying();}
-    virtual status_t seekTo(int msec) {return mPlayer->seekTo(msec);}
+    virtual status_t seekTo(
+            int msec,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) {
+        return mPlayer->seekTo(msec, mode);
+    }
     virtual status_t getCurrentPosition(int *p)  {
         return mPlayer->getCurrentPosition(p);
     }
diff --git a/media/libmediaplayerservice/include/MediaPlayerInterface.h b/media/libmediaplayerservice/include/MediaPlayerInterface.h
new file mode 100644
index 0000000..a01f7f2
--- /dev/null
+++ b/media/libmediaplayerservice/include/MediaPlayerInterface.h
@@ -0,0 +1,330 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIAPLAYERINTERFACE_H
+#define ANDROID_MEDIAPLAYERINTERFACE_H
+
+#ifdef __cplusplus
+
+#include <sys/types.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/RefBase.h>
+
+#include <media/mediaplayer.h>
+#include <media/AudioResamplerPublic.h>
+#include <media/AudioSystem.h>
+#include <media/AudioTimestamp.h>
+#include <media/AVSyncSettings.h>
+#include <media/BufferingSettings.h>
+#include <media/Metadata.h>
+
+// Fwd decl to make sure everyone agrees that the scope of struct sockaddr_in is
+// global, and not in android::
+struct sockaddr_in;
+
+namespace android {
+
+class DataSource;
+class Parcel;
+class Surface;
+class IGraphicBufferProducer;
+
+template<typename T> class SortedVector;
+
+enum player_type {
+    STAGEFRIGHT_PLAYER = 3,
+    NU_PLAYER = 4,
+    // Test players are available only in the 'test' and 'eng' builds.
+    // The shared library with the test player is passed passed as an
+    // argument to the 'test:' url in the setDataSource call.
+    TEST_PLAYER = 5,
+};
+
+
+#define DEFAULT_AUDIOSINK_BUFFERCOUNT 4
+#define DEFAULT_AUDIOSINK_BUFFERSIZE 1200
+#define DEFAULT_AUDIOSINK_SAMPLERATE 44100
+
+// when the channel mask isn't known, use the channel count to derive a mask in AudioSink::open()
+#define CHANNEL_MASK_USE_CHANNEL_ORDER 0
+
+// duration below which we do not allow deep audio buffering
+#define AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US 5000000
+
+// callback mechanism for passing messages to MediaPlayer object
+typedef void (*notify_callback_f)(void* cookie,
+        int msg, int ext1, int ext2, const Parcel *obj);
+
+// abstract base class - use MediaPlayerInterface
+class MediaPlayerBase : public RefBase
+{
+public:
+    // AudioSink: abstraction layer for audio output
+    class AudioSink : public RefBase {
+    public:
+        enum cb_event_t {
+            CB_EVENT_FILL_BUFFER,   // Request to write more data to buffer.
+            CB_EVENT_STREAM_END,    // Sent after all the buffers queued in AF and HW are played
+                                    // back (after stop is called)
+            CB_EVENT_TEAR_DOWN      // The AudioTrack was invalidated due to use case change:
+                                    // Need to re-evaluate offloading options
+        };
+
+        // Callback returns the number of bytes actually written to the buffer.
+        typedef size_t (*AudioCallback)(
+                AudioSink *audioSink, void *buffer, size_t size, void *cookie,
+                        cb_event_t event);
+
+        virtual             ~AudioSink() {}
+        virtual bool        ready() const = 0; // audio output is open and ready
+        virtual ssize_t     bufferSize() const = 0;
+        virtual ssize_t     frameCount() const = 0;
+        virtual ssize_t     channelCount() const = 0;
+        virtual ssize_t     frameSize() const = 0;
+        virtual uint32_t    latency() const = 0;
+        virtual float       msecsPerFrame() const = 0;
+        virtual status_t    getPosition(uint32_t *position) const = 0;
+        virtual status_t    getTimestamp(AudioTimestamp &ts) const = 0;
+        virtual int64_t     getPlayedOutDurationUs(int64_t nowUs) const = 0;
+        virtual status_t    getFramesWritten(uint32_t *frameswritten) const = 0;
+        virtual audio_session_t getSessionId() const = 0;
+        virtual audio_stream_type_t getAudioStreamType() const = 0;
+        virtual uint32_t    getSampleRate() const = 0;
+        virtual int64_t     getBufferDurationInUs() const = 0;
+
+        // If no callback is specified, use the "write" API below to submit
+        // audio data.
+        virtual status_t    open(
+                uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask,
+                audio_format_t format=AUDIO_FORMAT_PCM_16_BIT,
+                int bufferCount=DEFAULT_AUDIOSINK_BUFFERCOUNT,
+                AudioCallback cb = NULL,
+                void *cookie = NULL,
+                audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                const audio_offload_info_t *offloadInfo = NULL,
+                bool doNotReconnect = false,
+                uint32_t suggestedFrameCount = 0) = 0;
+
+        virtual status_t    start() = 0;
+
+        /* Input parameter |size| is in byte units stored in |buffer|.
+         * Data is copied over and actual number of bytes written (>= 0)
+         * is returned, or no data is copied and a negative status code
+         * is returned (even when |blocking| is true).
+         * When |blocking| is false, AudioSink will immediately return after
+         * part of or full |buffer| is copied over.
+         * When |blocking| is true, AudioSink will wait to copy the entire
+         * buffer, unless an error occurs or the copy operation is
+         * prematurely stopped.
+         */
+        virtual ssize_t     write(const void* buffer, size_t size, bool blocking = true) = 0;
+
+        virtual void        stop() = 0;
+        virtual void        flush() = 0;
+        virtual void        pause() = 0;
+        virtual void        close() = 0;
+
+        virtual status_t    setPlaybackRate(const AudioPlaybackRate& rate) = 0;
+        virtual status_t    getPlaybackRate(AudioPlaybackRate* rate /* nonnull */) = 0;
+        virtual bool        needsTrailingPadding() { return true; }
+
+        virtual status_t    setParameters(const String8& /* keyValuePairs */) { return NO_ERROR; }
+        virtual String8     getParameters(const String8& /* keys */) { return String8::empty(); }
+
+        virtual VolumeShaper::Status applyVolumeShaper(
+                                    const sp<VolumeShaper::Configuration>& configuration,
+                                    const sp<VolumeShaper::Operation>& operation);
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id);
+    };
+
+                        MediaPlayerBase() : mCookie(0), mNotify(0) {}
+    virtual             ~MediaPlayerBase() {}
+    virtual status_t    initCheck() = 0;
+    virtual bool        hardwareOutput() = 0;
+
+    virtual status_t    setUID(uid_t /* uid */) {
+        return INVALID_OPERATION;
+    }
+
+    virtual status_t    setDataSource(
+            const sp<IMediaHTTPService> &httpService,
+            const char *url,
+            const KeyedVector<String8, String8> *headers = NULL) = 0;
+
+    virtual status_t    setDataSource(int fd, int64_t offset, int64_t length) = 0;
+
+    virtual status_t    setDataSource(const sp<IStreamSource>& /* source */) {
+        return INVALID_OPERATION;
+    }
+
+    virtual status_t    setDataSource(const sp<DataSource>& /* source */) {
+        return INVALID_OPERATION;
+    }
+
+    // pass the buffered IGraphicBufferProducer to the media player service
+    virtual status_t    setVideoSurfaceTexture(
+                                const sp<IGraphicBufferProducer>& bufferProducer) = 0;
+
+    virtual status_t    getDefaultBufferingSettings(
+                                BufferingSettings* buffering /* nonnull */) {
+        *buffering = BufferingSettings();
+        return OK;
+    }
+    virtual status_t    setBufferingSettings(const BufferingSettings& /* buffering */) {
+        return OK;
+    }
+
+    virtual status_t    prepare() = 0;
+    virtual status_t    prepareAsync() = 0;
+    virtual status_t    start() = 0;
+    virtual status_t    stop() = 0;
+    virtual status_t    pause() = 0;
+    virtual bool        isPlaying() = 0;
+    virtual status_t    setPlaybackSettings(const AudioPlaybackRate& rate) {
+        // by default, players only support setting rate to the default
+        if (!isAudioPlaybackRateEqual(rate, AUDIO_PLAYBACK_RATE_DEFAULT)) {
+            return BAD_VALUE;
+        }
+        return OK;
+    }
+    virtual status_t    getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) {
+        *rate = AUDIO_PLAYBACK_RATE_DEFAULT;
+        return OK;
+    }
+    virtual status_t    setSyncSettings(const AVSyncSettings& sync, float /* videoFps */) {
+        // By default, players only support setting sync source to default; all other sync
+        // settings are ignored. There is no requirement for getters to return set values.
+        if (sync.mSource != AVSYNC_SOURCE_DEFAULT) {
+            return BAD_VALUE;
+        }
+        return OK;
+    }
+    virtual status_t    getSyncSettings(
+                                AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */) {
+        *sync = AVSyncSettings();
+        *videoFps = -1.f;
+        return OK;
+    }
+    virtual status_t    seekTo(
+            int msec, MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) = 0;
+    virtual status_t    getCurrentPosition(int *msec) = 0;
+    virtual status_t    getDuration(int *msec) = 0;
+    virtual status_t    reset() = 0;
+    virtual status_t    setLooping(int loop) = 0;
+    virtual player_type playerType() = 0;
+    virtual status_t    setParameter(int key, const Parcel &request) = 0;
+    virtual status_t    getParameter(int key, Parcel *reply) = 0;
+
+    // default no-op implementation of optional extensions
+    virtual status_t setRetransmitEndpoint(const struct sockaddr_in* /* endpoint */) {
+        return INVALID_OPERATION;
+    }
+    virtual status_t getRetransmitEndpoint(struct sockaddr_in* /* endpoint */) {
+        return INVALID_OPERATION;
+    }
+    virtual status_t setNextPlayer(const sp<MediaPlayerBase>& /* next */) {
+        return OK;
+    }
+
+    // Invoke a generic method on the player by using opaque parcels
+    // for the request and reply.
+    //
+    // @param request Parcel that is positioned at the start of the
+    //                data sent by the java layer.
+    // @param[out] reply Parcel to hold the reply data. Cannot be null.
+    // @return OK if the call was successful.
+    virtual status_t    invoke(const Parcel& request, Parcel *reply) = 0;
+
+    // The Client in the MetadataPlayerService calls this method on
+    // the native player to retrieve all or a subset of metadata.
+    //
+    // @param ids SortedList of metadata ID to be fetch. If empty, all
+    //            the known metadata should be returned.
+    // @param[inout] records Parcel where the player appends its metadata.
+    // @return OK if the call was successful.
+    virtual status_t    getMetadata(const media::Metadata::Filter& /* ids */,
+                                    Parcel* /* records */) {
+        return INVALID_OPERATION;
+    };
+
+    void        setNotifyCallback(
+            void* cookie, notify_callback_f notifyFunc) {
+        Mutex::Autolock autoLock(mNotifyLock);
+        mCookie = cookie; mNotify = notifyFunc;
+    }
+
+    void        sendEvent(int msg, int ext1=0, int ext2=0,
+                          const Parcel *obj=NULL) {
+        notify_callback_f notifyCB;
+        void* cookie;
+        {
+            Mutex::Autolock autoLock(mNotifyLock);
+            notifyCB = mNotify;
+            cookie = mCookie;
+        }
+
+        if (notifyCB) notifyCB(cookie, msg, ext1, ext2, obj);
+    }
+
+    virtual status_t dump(int /* fd */, const Vector<String16>& /* args */) const {
+        return INVALID_OPERATION;
+    }
+
+    // Modular DRM
+    virtual status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId) {
+        return INVALID_OPERATION;
+    }
+    virtual status_t releaseDrm() {
+        return INVALID_OPERATION;
+    }
+
+private:
+    friend class MediaPlayerService;
+
+    Mutex               mNotifyLock;
+    void*               mCookie;
+    notify_callback_f   mNotify;
+};
+
+// Implement this class for media players that use the AudioFlinger software mixer
+class MediaPlayerInterface : public MediaPlayerBase
+{
+public:
+    virtual             ~MediaPlayerInterface() { }
+    virtual bool        hardwareOutput() { return false; }
+    virtual void        setAudioSink(const sp<AudioSink>& audioSink) { mAudioSink = audioSink; }
+protected:
+    sp<AudioSink>       mAudioSink;
+};
+
+// Implement this class for media players that output audio directly to hardware
+class MediaPlayerHWInterface : public MediaPlayerBase
+{
+public:
+    virtual             ~MediaPlayerHWInterface() {}
+    virtual bool        hardwareOutput() { return true; }
+    virtual status_t    setVolume(float leftVolume, float rightVolume) = 0;
+    virtual status_t    setAudioStreamType(audio_stream_type_t streamType) = 0;
+};
+
+}; // namespace android
+
+#endif // __cplusplus
+
+
+#endif // ANDROID_MEDIAPLAYERINTERFACE_H
diff --git a/media/libmediaplayerservice/nuplayer/Android.mk b/media/libmediaplayerservice/nuplayer/Android.mk
index cd20837..08c3cf8 100644
--- a/media/libmediaplayerservice/nuplayer/Android.mk
+++ b/media/libmediaplayerservice/nuplayer/Android.mk
@@ -10,6 +10,7 @@
         NuPlayerDecoderBase.cpp         \
         NuPlayerDecoderPassThrough.cpp  \
         NuPlayerDriver.cpp              \
+        NuPlayerDrm.cpp                 \
         NuPlayerRenderer.cpp            \
         NuPlayerStreamListener.cpp      \
         RTSPSource.cpp                  \
@@ -32,7 +33,12 @@
 LOCAL_CFLAGS += -DENABLE_STAGEFRIGHT_EXPERIMENTS
 endif
 
-LOCAL_CLANG := true
+LOCAL_SHARED_LIBRARIES :=       \
+    libbinder                   \
+    libui                       \
+    libgui                      \
+    libmedia                    \
+    libmediadrm                 \
 
 LOCAL_MODULE:= libstagefright_nuplayer
 
diff --git a/media/libmediaplayerservice/nuplayer/GenericSource.cpp b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
index af2d0f3..d83c406 100644
--- a/media/libmediaplayerservice/nuplayer/GenericSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
@@ -18,9 +18,12 @@
 #define LOG_TAG "GenericSource"
 
 #include "GenericSource.h"
+#include "NuPlayerDrm.h"
 
 #include "AnotherPacketSource.h"
-
+#include <binder/IServiceManager.h>
+#include <cutils/properties.h>
+#include <media/IMediaExtractorService.h>
 #include <media/IMediaHTTPService.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -33,18 +36,17 @@
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
-#include "../../libstagefright/include/DRMExtractor.h"
 #include "../../libstagefright/include/NuCachedSource2.h"
-#include "../../libstagefright/include/WVMExtractor.h"
 #include "../../libstagefright/include/HTTPBase.h"
 
 namespace android {
 
-static int64_t kLowWaterMarkUs = 2000000ll;  // 2secs
-static int64_t kHighWaterMarkUs = 5000000ll;  // 5secs
-static int64_t kHighWaterMarkRebufferUs = 15000000ll;  // 15secs
-static const ssize_t kLowWaterMarkBytes = 40000;
-static const ssize_t kHighWaterMarkBytes = 200000;
+static const int kLowWaterMarkMs          = 2000;  // 2secs
+static const int kHighWaterMarkMs         = 5000;  // 5secs
+static const int kHighWaterMarkRebufferMs = 15000;  // 15secs
+
+static const int kLowWaterMarkKB  = 40;
+static const int kHighWaterMarkKB = 200;
 
 NuPlayer::GenericSource::GenericSource(
         const sp<AMessage> &notify,
@@ -59,21 +61,22 @@
       mFetchTimedTextDataGeneration(0),
       mDurationUs(-1ll),
       mAudioIsVorbis(false),
-      mIsWidevine(false),
       mIsSecure(false),
       mIsStreaming(false),
       mUIDValid(uidValid),
       mUID(uid),
       mFd(-1),
-      mDrmManagerClient(NULL),
       mBitrate(-1ll),
       mPendingReadBufferTypes(0) {
+    ALOGV("GenericSource");
+
     mBufferingMonitor = new BufferingMonitor(notify);
     resetDataSource();
-    DataSource::RegisterDefaultSniffers();
 }
 
 void NuPlayer::GenericSource::resetDataSource() {
+    ALOGV("resetDataSource");
+
     mHTTPService.clear();
     mHttpSource.clear();
     mUri.clear();
@@ -84,9 +87,6 @@
     }
     mOffset = 0;
     mLength = 0;
-    setDrmPlaybackStatusIfNeeded(Playback::STOP, 0);
-    mDecryptHandle = NULL;
-    mDrmManagerClient = NULL;
     mStarted = false;
     mStopRead = true;
 
@@ -96,12 +96,19 @@
         mBufferingMonitorLooper = NULL;
     }
     mBufferingMonitor->stop();
+
+    mIsDrmProtected = false;
+    mIsDrmReleased = false;
+    mIsSecure = false;
+    mMimes.clear();
 }
 
 status_t NuPlayer::GenericSource::setDataSource(
         const sp<IMediaHTTPService> &httpService,
         const char *url,
         const KeyedVector<String8, String8> *headers) {
+    ALOGV("setDataSource url: %s", url);
+
     resetDataSource();
 
     mHTTPService = httpService;
@@ -118,6 +125,8 @@
 
 status_t NuPlayer::GenericSource::setDataSource(
         int fd, int64_t offset, int64_t length) {
+    ALOGV("setDataSource %d/%lld/%lld", fd, (long long)offset, (long long)length);
+
     resetDataSource();
 
     mFd = dup(fd);
@@ -130,6 +139,8 @@
 }
 
 status_t NuPlayer::GenericSource::setDataSource(const sp<DataSource>& source) {
+    ALOGV("setDataSource (source: %p)", source.get());
+
     resetDataSource();
     mDataSource = source;
     return OK;
@@ -141,79 +152,33 @@
 
 status_t NuPlayer::GenericSource::initFromDataSource() {
     sp<IMediaExtractor> extractor;
-    String8 mimeType;
-    float confidence;
-    sp<AMessage> dummy;
-    bool isWidevineStreaming = false;
-
     CHECK(mDataSource != NULL);
 
-    if (mIsWidevine) {
-        isWidevineStreaming = SniffWVM(
-                mDataSource, &mimeType, &confidence, &dummy);
-        if (!isWidevineStreaming ||
-                strcasecmp(
-                    mimeType.string(), MEDIA_MIMETYPE_CONTAINER_WVM)) {
-            ALOGE("unsupported widevine mime: %s", mimeType.string());
-            return UNKNOWN_ERROR;
-        }
-    } else if (mIsStreaming) {
-        if (!mDataSource->sniff(&mimeType, &confidence, &dummy)) {
-            return UNKNOWN_ERROR;
-        }
-        isWidevineStreaming = !strcasecmp(
-                mimeType.string(), MEDIA_MIMETYPE_CONTAINER_WVM);
-    }
-
-    if (isWidevineStreaming) {
-        // we don't want cached source for widevine streaming.
-        mCachedSource.clear();
-        mDataSource = mHttpSource;
-        mWVMExtractor = new WVMExtractor(mDataSource);
-        mWVMExtractor->setAdaptiveStreamingMode(true);
-        if (mUIDValid) {
-            mWVMExtractor->setUID(mUID);
-        }
-        extractor = mWVMExtractor;
-    } else {
-        extractor = MediaExtractor::Create(mDataSource,
-                mimeType.isEmpty() ? NULL : mimeType.string());
-    }
+    extractor = MediaExtractor::Create(mDataSource, NULL);
 
     if (extractor == NULL) {
+        ALOGE("initFromDataSource, cannot create extractor!");
         return UNKNOWN_ERROR;
     }
 
-    if (extractor->getDrmFlag()) {
-        checkDrmStatus(mDataSource);
-    }
-
     mFileMeta = extractor->getMetaData();
     if (mFileMeta != NULL) {
         int64_t duration;
         if (mFileMeta->findInt64(kKeyDuration, &duration)) {
             mDurationUs = duration;
         }
-
-        if (!mIsWidevine) {
-            // Check mime to see if we actually have a widevine source.
-            // If the data source is not URL-type (eg. file source), we
-            // won't be able to tell until now.
-            const char *fileMime;
-            if (mFileMeta->findCString(kKeyMIMEType, &fileMime)
-                    && !strncasecmp(fileMime, "video/wvm", 9)) {
-                mIsWidevine = true;
-            }
-        }
     }
 
     int32_t totalBitrate = 0;
 
     size_t numtracks = extractor->countTracks();
     if (numtracks == 0) {
+        ALOGE("initFromDataSource, source has no track!");
         return UNKNOWN_ERROR;
     }
 
+    mMimes.clear();
+
     for (size_t i = 0; i < numtracks; ++i) {
         sp<IMediaSource> track = extractor->getTrack(i);
         if (track == NULL) {
@@ -229,6 +194,8 @@
         const char *mime;
         CHECK(meta->findCString(kKeyMIMEType, &mime));
 
+        ALOGV("initFromDataSource track[%zu]: %s", i, mime);
+
         // Do the string compare immediately with "mime",
         // we can't assume "mime" would stay valid after another
         // extractor operation, some extractors might modify meta
@@ -245,6 +212,8 @@
                 } else {
                     mAudioIsVorbis = false;
                 }
+
+                mMimes.add(String8(mime));
             }
         } else if (!strncasecmp(mime, "video/", 6)) {
             if (mVideoTrack.mSource == NULL) {
@@ -253,15 +222,8 @@
                 mVideoTrack.mPackets =
                     new AnotherPacketSource(mVideoTrack.mSource->getFormat());
 
-                // check if the source requires secure buffers
-                int32_t secure;
-                if (meta->findInt32(kKeyRequiresSecureBuffers, &secure)
-                        && secure) {
-                    mIsSecure = true;
-                    if (mUIDValid) {
-                        extractor->setUID(mUID);
-                    }
-                }
+                // video always at the beginning
+                mMimes.insertAt(String8(mime), 0);
             }
         }
 
@@ -281,21 +243,40 @@
         }
     }
 
+    ALOGV("initFromDataSource mSources.size(): %zu  mIsSecure: %d  mime[0]: %s", mSources.size(),
+            mIsSecure, (mMimes.isEmpty() ? "NONE" : mMimes[0].string()));
+
     if (mSources.size() == 0) {
         ALOGE("b/23705695");
         return UNKNOWN_ERROR;
     }
 
+    // Modular DRM: The return value doesn't affect source initialization.
+    (void)checkDrmInfo();
+
     mBitrate = totalBitrate;
 
     return OK;
 }
 
+status_t NuPlayer::GenericSource::getDefaultBufferingSettings(
+        BufferingSettings* buffering /* nonnull */) {
+    mBufferingMonitor->getDefaultBufferingSettings(buffering);
+    return OK;
+}
+
+status_t NuPlayer::GenericSource::setBufferingSettings(const BufferingSettings& buffering) {
+    return mBufferingMonitor->setBufferingSettings(buffering);
+}
+
 status_t NuPlayer::GenericSource::startSources() {
     // Start the selected A/V tracks now before we start buffering.
     // Widevine sources might re-initialize crypto when starting, if we delay
     // this to start(), all data buffered during prepare would be wasted.
     // (We don't actually start reading until start().)
+    //
+    // TODO: this logic may no longer be relevant after the removal of widevine
+    // support
     if (mAudioTrack.mSource != NULL && mAudioTrack.mSource->start() != OK) {
         ALOGE("failed to start audio track!");
         return UNKNOWN_ERROR;
@@ -309,18 +290,6 @@
     return OK;
 }
 
-void NuPlayer::GenericSource::checkDrmStatus(const sp<DataSource>& dataSource) {
-    dataSource->getDrmInfo(mDecryptHandle, &mDrmManagerClient);
-    if (mDecryptHandle != NULL) {
-        CHECK(mDrmManagerClient);
-        if (RightsStatus::RIGHTS_VALID != mDecryptHandle->status) {
-            sp<AMessage> msg = dupNotify();
-            msg->setInt32("what", kWhatDrmNoLicense);
-            msg->post();
-        }
-    }
-}
-
 int64_t NuPlayer::GenericSource::getLastReadPosition() {
     if (mAudioTrack.mSource != NULL) {
         return mAudioTimeUs;
@@ -348,6 +317,7 @@
 }
 
 NuPlayer::GenericSource::~GenericSource() {
+    ALOGV("~GenericSource");
     if (mLooper != NULL) {
         mLooper->unregisterHandler(id());
         mLooper->stop();
@@ -356,6 +326,8 @@
 }
 
 void NuPlayer::GenericSource::prepareAsync() {
+    ALOGV("prepareAsync: (looper: %d)", (mLooper != NULL));
+
     if (mLooper == NULL) {
         mLooper = new ALooper;
         mLooper->setName("generic");
@@ -369,6 +341,8 @@
 }
 
 void NuPlayer::GenericSource::onPrepareAsync() {
+    ALOGV("onPrepareAsync: mDataSource: %d", (mDataSource != NULL));
+
     // delayed data source creation
     if (mDataSource == NULL) {
         // set to false first, if the extractor
@@ -378,11 +352,8 @@
         if (!mUri.empty()) {
             const char* uri = mUri.c_str();
             String8 contentType;
-            mIsWidevine = !strncasecmp(uri, "widevine://", 11);
 
-            if (!strncasecmp("http://", uri, 7)
-                    || !strncasecmp("https://", uri, 8)
-                    || mIsWidevine) {
+            if (!strncasecmp("http://", uri, 7) || !strncasecmp("https://", uri, 8)) {
                 mHttpSource = DataSource::CreateMediaHTTP(mHTTPService);
                 if (mHttpSource == NULL) {
                     ALOGE("Failed to create http source!");
@@ -395,9 +366,39 @@
                    mHTTPService, uri, &mUriHeaders, &contentType,
                    static_cast<HTTPBase *>(mHttpSource.get()));
         } else {
-            mIsWidevine = false;
-
-            mDataSource = new FileSource(mFd, mOffset, mLength);
+            if (property_get_bool("media.stagefright.extractremote", true) &&
+                    !FileSource::requiresDrm(mFd, mOffset, mLength, nullptr /* mime */)) {
+                sp<IBinder> binder =
+                        defaultServiceManager()->getService(String16("media.extractor"));
+                if (binder != nullptr) {
+                    ALOGD("FileSource remote");
+                    sp<IMediaExtractorService> mediaExService(
+                            interface_cast<IMediaExtractorService>(binder));
+                    sp<IDataSource> source =
+                            mediaExService->makeIDataSource(mFd, mOffset, mLength);
+                    ALOGV("IDataSource(FileSource): %p %d %lld %lld",
+                            source.get(), mFd, (long long)mOffset, (long long)mLength);
+                    if (source.get() != nullptr) {
+                        mDataSource = DataSource::CreateFromIDataSource(source);
+                        if (mDataSource != nullptr) {
+                            // Close the local file descriptor as it is not needed anymore.
+                            close(mFd);
+                            mFd = -1;
+                        }
+                    } else {
+                        ALOGW("extractor service cannot make data source");
+                    }
+                } else {
+                    ALOGW("extractor service not running");
+                }
+            }
+            if (mDataSource == nullptr) {
+                ALOGD("FileSource local");
+                mDataSource = new FileSource(mFd, mOffset, mLength);
+            }
+            // TODO: close should always be done on mFd, see the lines following
+            // DataSource::CreateFromIDataSource above,
+            // and the FileSource constructor should dup the mFd argument as needed.
             mFd = -1;
         }
 
@@ -412,13 +413,9 @@
         mCachedSource = static_cast<NuCachedSource2 *>(mDataSource.get());
     }
 
-    // For widevine or other cached streaming cases, we need to wait for
-    // enough buffering before reporting prepared.
-    // Note that even when URL doesn't start with widevine://, mIsWidevine
-    // could still be set to true later, if the streaming or file source
-    // is sniffed to be widevine. We don't want to buffer for file source
-    // in that case, so must check the flag now.
-    mIsStreaming = (mIsWidevine || mCachedSource != NULL);
+    // For cached streaming cases, we need to wait for enough
+    // buffering before reporting prepared.
+    mIsStreaming = (mCachedSource != NULL);
 
     // init extractor from data source
     status_t err = initFromDataSource();
@@ -441,32 +438,21 @@
     }
 
     notifyFlagsChanged(
-            (mIsSecure ? FLAG_SECURE : 0)
-            | (mDecryptHandle != NULL ? FLAG_PROTECTED : 0)
-            | FLAG_CAN_PAUSE
-            | FLAG_CAN_SEEK_BACKWARD
-            | FLAG_CAN_SEEK_FORWARD
-            | FLAG_CAN_SEEK);
+            // FLAG_SECURE will be known if/when prepareDrm is called by the app
+            // FLAG_PROTECTED will be known if/when prepareDrm is called by the app
+            FLAG_CAN_PAUSE |
+            FLAG_CAN_SEEK_BACKWARD |
+            FLAG_CAN_SEEK_FORWARD |
+            FLAG_CAN_SEEK);
 
-    if (mIsSecure) {
-        // secure decoders must be instantiated before starting widevine source
-        sp<AMessage> reply = new AMessage(kWhatSecureDecodersInstantiated, this);
-        notifyInstantiateSecureDecoders(reply);
-    } else {
-        finishPrepareAsync();
-    }
-}
-
-void NuPlayer::GenericSource::onSecureDecodersInstantiated(status_t err) {
-    if (err != OK) {
-        ALOGE("Failed to instantiate secure decoders!");
-        notifyPreparedAndCleanup(err);
-        return;
-    }
     finishPrepareAsync();
+
+    ALOGV("onPrepareAsync: Done");
 }
 
 void NuPlayer::GenericSource::finishPrepareAsync() {
+    ALOGV("finishPrepareAsync");
+
     status_t err = startSources();
     if (err != OK) {
         ALOGE("Failed to init start data source!");
@@ -476,7 +462,7 @@
 
     if (mIsStreaming) {
         if (mBufferingMonitorLooper == NULL) {
-            mBufferingMonitor->prepare(mCachedSource, mWVMExtractor, mDurationUs, mBitrate,
+            mBufferingMonitor->prepare(mCachedSource, mDurationUs, mBitrate,
                     mIsStreaming);
 
             mBufferingMonitorLooper = new ALooper;
@@ -501,8 +487,6 @@
             {
                 Mutex::Autolock _l(mDisconnectLock);
                 mDataSource.clear();
-                mDecryptHandle = NULL;
-                mDrmManagerClient = NULL;
                 mCachedSource.clear();
                 mHttpSource.clear();
             }
@@ -526,33 +510,20 @@
         postReadBuffer(MEDIA_TRACK_TYPE_VIDEO);
     }
 
-    setDrmPlaybackStatusIfNeeded(Playback::START, getLastReadPosition() / 1000);
     mStarted = true;
 
     (new AMessage(kWhatStart, this))->post();
 }
 
 void NuPlayer::GenericSource::stop() {
-    // nothing to do, just account for DRM playback status
-    setDrmPlaybackStatusIfNeeded(Playback::STOP, 0);
     mStarted = false;
-    if (mIsWidevine || mIsSecure) {
-        // For widevine or secure sources we need to prevent any further reads.
-        sp<AMessage> msg = new AMessage(kWhatStopWidevine, this);
-        sp<AMessage> response;
-        (void) msg->postAndAwaitResponse(&response);
-    }
 }
 
 void NuPlayer::GenericSource::pause() {
-    // nothing to do, just account for DRM playback status
-    setDrmPlaybackStatusIfNeeded(Playback::PAUSE, 0);
     mStarted = false;
 }
 
 void NuPlayer::GenericSource::resume() {
-    // nothing to do, just account for DRM playback status
-    setDrmPlaybackStatusIfNeeded(Playback::START, getLastReadPosition() / 1000);
     mStarted = true;
 
     (new AMessage(kWhatResume, this))->post();
@@ -576,14 +547,6 @@
     }
 }
 
-void NuPlayer::GenericSource::setDrmPlaybackStatusIfNeeded(int playbackStatus, int64_t position) {
-    if (mDecryptHandle != NULL) {
-        mDrmManagerClient->setPlaybackStatus(mDecryptHandle, playbackStatus, position);
-    }
-    mSubtitleTrack.mPackets = new AnotherPacketSource(NULL);
-    mTimedTextTrack.mPackets = new AnotherPacketSource(NULL);
-}
-
 status_t NuPlayer::GenericSource::feedMoreTSData() {
     return OK;
 }
@@ -665,8 +628,10 @@
           } else {
               timeUs = mVideoLastDequeueTimeUs;
           }
-          readBuffer(trackType, timeUs, &actualTimeUs, formatChange);
-          readBuffer(counterpartType, -1, NULL, formatChange);
+          readBuffer(trackType, timeUs, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */,
+                  &actualTimeUs, formatChange);
+          readBuffer(counterpartType, -1, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */,
+                  NULL, !formatChange);
           ALOGV("timeUs %lld actualTimeUs %lld", (long long)timeUs, (long long)actualTimeUs);
 
           break;
@@ -691,6 +656,12 @@
           break;
       }
 
+      case kWhatGetTrackInfo:
+      {
+          onGetTrackInfo(msg);
+          break;
+      }
+
       case kWhatSelectTrack:
       {
           onSelectTrack(msg);
@@ -709,28 +680,28 @@
           break;
       }
 
-      case kWhatSecureDecodersInstantiated:
+      case kWhatPrepareDrm:
       {
-          int32_t err;
-          CHECK(msg->findInt32("err", &err));
-          onSecureDecodersInstantiated(err);
-          break;
-      }
-
-      case kWhatStopWidevine:
-      {
-          // mStopRead is only used for Widevine to prevent the video source
-          // from being read while the associated video decoder is shutting down.
-          mStopRead = true;
-          if (mVideoTrack.mSource != NULL) {
-              mVideoTrack.mPackets->clear();
-          }
+          status_t status = onPrepareDrm(msg);
           sp<AMessage> response = new AMessage;
+          response->setInt32("status", status);
           sp<AReplyToken> replyID;
           CHECK(msg->senderAwaitsResponse(&replyID));
           response->postReply(replyID);
           break;
       }
+
+      case kWhatReleaseDrm:
+      {
+          status_t status = onReleaseDrm();
+          sp<AMessage> response = new AMessage;
+          response->setInt32("status", status);
+          sp<AReplyToken> replyID;
+          CHECK(msg->senderAwaitsResponse(&replyID));
+          response->postReply(replyID);
+          break;
+      }
+
       default:
           Source::onMessageReceived(msg);
           break;
@@ -741,8 +712,8 @@
         uint32_t sendWhat,
         media_track_type type,
         int32_t curGen,
-        sp<AnotherPacketSource> packets,
-        sp<AMessage> msg) {
+        const sp<AnotherPacketSource>& packets,
+        const sp<AMessage>& msg) {
     int32_t msgGeneration;
     CHECK(msg->findInt32("generation", &msgGeneration));
     if (msgGeneration != curGen) {
@@ -759,7 +730,7 @@
     CHECK(msg->findInt64("timeUs", &timeUs));
 
     int64_t subTimeUs;
-    readBuffer(type, timeUs, &subTimeUs);
+    readBuffer(type, timeUs, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */, &subTimeUs);
 
     int64_t delayUs = subTimeUs - timeUs;
     if (msg->what() == kWhatFetchSubtitleData) {
@@ -775,8 +746,8 @@
         uint32_t what,
         media_track_type type,
         int32_t curGen,
-        sp<AnotherPacketSource> packets,
-        sp<AMessage> msg) {
+        const sp<AnotherPacketSource>& packets,
+        const sp<AMessage>& msg) {
     int32_t msgGeneration;
     CHECK(msg->findInt32("generation", &msgGeneration));
     if (msgGeneration != curGen) {
@@ -790,7 +761,7 @@
     }
 
     int64_t nextSubTimeUs;
-    readBuffer(type, -1, &nextSubTimeUs);
+    readBuffer(type, -1, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */, &nextSubTimeUs);
 
     sp<ABuffer> buffer;
     status_t dequeueStatus = packets->dequeueAccessUnit(&buffer);
@@ -851,7 +822,7 @@
     }
 }
 
-void NuPlayer::GenericSource::onGetFormatMeta(sp<AMessage> msg) const {
+void NuPlayer::GenericSource::onGetFormatMeta(const sp<AMessage>& msg) const {
     int32_t audio;
     CHECK(msg->findInt32("audio", &audio));
 
@@ -880,17 +851,19 @@
         return -EWOULDBLOCK;
     }
 
+    // If has gone through stop/releaseDrm sequence, we no longer send down any buffer b/c
+    // the codec's crypto object has gone away (b/37960096).
+    // Note: This will be unnecessary when stop() changes behavior and releases codec (b/35248283).
+    if (!mStarted && mIsDrmReleased) {
+        return -EWOULDBLOCK;
+    }
+
     Track *track = audio ? &mAudioTrack : &mVideoTrack;
 
     if (track->mSource == NULL) {
         return -EWOULDBLOCK;
     }
 
-    if (mIsWidevine && !audio) {
-        // try to read a buffer as we may not have been able to the last time
-        postReadBuffer(MEDIA_TRACK_TYPE_VIDEO);
-    }
-
     status_t finalResult;
     if (!track->mPackets->hasBufferAvailable(&finalResult)) {
         if (finalResult == OK) {
@@ -960,6 +933,34 @@
 }
 
 sp<AMessage> NuPlayer::GenericSource::getTrackInfo(size_t trackIndex) const {
+    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, this);
+    msg->setSize("trackIndex", trackIndex);
+
+    sp<AMessage> response;
+    sp<RefBase> format;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findObject("format", &format));
+        return static_cast<AMessage*>(format.get());
+    } else {
+        return NULL;
+    }
+}
+
+void NuPlayer::GenericSource::onGetTrackInfo(const sp<AMessage>& msg) const {
+    size_t trackIndex;
+    CHECK(msg->findSize("trackIndex", &trackIndex));
+
+    sp<AMessage> response = new AMessage;
+    sp<AMessage> format = doGetTrackInfo(trackIndex);
+    response->setObject("format", format);
+
+    sp<AReplyToken> replyID;
+    CHECK(msg->senderAwaitsResponse(&replyID));
+    response->postReply(replyID);
+}
+
+sp<AMessage> NuPlayer::GenericSource::doGetTrackInfo(size_t trackIndex) const {
     size_t trackCount = mSources.size();
     if (trackIndex >= trackCount) {
         return NULL;
@@ -1023,7 +1024,7 @@
     }
 }
 
-void NuPlayer::GenericSource::onGetSelectedTrack(sp<AMessage> msg) const {
+void NuPlayer::GenericSource::onGetSelectedTrack(const sp<AMessage>& msg) const {
     int32_t tmpType;
     CHECK(msg->findInt32("type", &tmpType));
     media_track_type type = (media_track_type)tmpType;
@@ -1079,7 +1080,7 @@
     return err;
 }
 
-void NuPlayer::GenericSource::onSelectTrack(sp<AMessage> msg) {
+void NuPlayer::GenericSource::onSelectTrack(const sp<AMessage>& msg) {
     int32_t trackIndex, select;
     int64_t timeUs;
     CHECK(msg->findInt32("trackIndex", &trackIndex));
@@ -1186,9 +1187,10 @@
     return INVALID_OPERATION;
 }
 
-status_t NuPlayer::GenericSource::seekTo(int64_t seekTimeUs) {
+status_t NuPlayer::GenericSource::seekTo(int64_t seekTimeUs, MediaPlayerSeekMode mode) {
     sp<AMessage> msg = new AMessage(kWhatSeek, this);
     msg->setInt64("seekTimeUs", seekTimeUs);
+    msg->setInt32("mode", mode);
 
     sp<AMessage> response;
     status_t err = msg->postAndAwaitResponse(&response);
@@ -1199,12 +1201,14 @@
     return err;
 }
 
-void NuPlayer::GenericSource::onSeek(sp<AMessage> msg) {
+void NuPlayer::GenericSource::onSeek(const sp<AMessage>& msg) {
     int64_t seekTimeUs;
+    int32_t mode;
     CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
+    CHECK(msg->findInt32("mode", &mode));
 
     sp<AMessage> response = new AMessage;
-    status_t err = doSeek(seekTimeUs);
+    status_t err = doSeek(seekTimeUs, (MediaPlayerSeekMode)mode);
     response->setInt32("err", err);
 
     sp<AReplyToken> replyID;
@@ -1212,20 +1216,25 @@
     response->postReply(replyID);
 }
 
-status_t NuPlayer::GenericSource::doSeek(int64_t seekTimeUs) {
+status_t NuPlayer::GenericSource::doSeek(int64_t seekTimeUs, MediaPlayerSeekMode mode) {
     mBufferingMonitor->updateDequeuedBufferTime(-1ll);
 
     // If the Widevine source is stopped, do not attempt to read any
     // more buffers.
+    //
+    // TODO: revisit after widevine is removed.  May be able to
+    // combine mStopRead with mStarted.
     if (mStopRead) {
         return INVALID_OPERATION;
     }
     if (mVideoTrack.mSource != NULL) {
         int64_t actualTimeUs;
-        readBuffer(MEDIA_TRACK_TYPE_VIDEO, seekTimeUs, &actualTimeUs);
+        readBuffer(MEDIA_TRACK_TYPE_VIDEO, seekTimeUs, mode, &actualTimeUs);
 
-        seekTimeUs = actualTimeUs;
-        mVideoLastDequeueTimeUs = seekTimeUs;
+        if (mode != MediaPlayerSeekMode::SEEK_CLOSEST) {
+            seekTimeUs = actualTimeUs;
+        }
+        mVideoLastDequeueTimeUs = actualTimeUs;
     }
 
     if (mAudioTrack.mSource != NULL) {
@@ -1233,11 +1242,6 @@
         mAudioLastDequeueTimeUs = seekTimeUs;
     }
 
-    setDrmPlaybackStatusIfNeeded(Playback::START, seekTimeUs / 1000);
-    if (!mStarted) {
-        setDrmPlaybackStatusIfNeeded(Playback::PAUSE, 0);
-    }
-
     // If currently buffering, post kWhatBufferingEnd first, so that
     // NuPlayer resumes. Otherwise, if cache hits high watermark
     // before new polling happens, no one will resume the playback.
@@ -1249,9 +1253,7 @@
 
 sp<ABuffer> NuPlayer::GenericSource::mediaBufferToABuffer(
         MediaBuffer* mb,
-        media_track_type trackType,
-        int64_t /* seekTimeUs */,
-        int64_t *actualTimeUs) {
+        media_track_type trackType) {
     bool audio = trackType == MEDIA_TRACK_TYPE_AUDIO;
     size_t outLength = mb->range_length();
 
@@ -1260,11 +1262,26 @@
     }
 
     sp<ABuffer> ab;
-    if (mIsSecure && !audio) {
+
+    if (mIsDrmProtected)   {
+        // Modular DRM
+        // Enabled for both video/audio so 1) media buffer is reused without extra copying
+        // 2) meta data can be retrieved in onInputBufferFetched for calling queueSecureInputBuffer.
+
         // data is already provided in the buffer
         ab = new ABuffer(NULL, mb->range_length());
         mb->add_ref();
         ab->setMediaBufferBase(mb);
+
+        // Modular DRM: Required b/c of the above add_ref.
+        // If ref>0, there must be an observer, or it'll crash at release().
+        // TODO: MediaBuffer might need to be revised to ease such need.
+        mb->setObserver(this);
+        // setMediaBufferBase() interestingly doesn't increment the ref count on its own.
+        // Extra increment (since we want to keep mb alive and attached to ab beyond this function
+        // call. This is to counter the effect of mb->release() towards the end.
+        mb->add_ref();
+
     } else {
         ab = new ABuffer(outLength);
         memcpy(ab->data(),
@@ -1288,16 +1305,6 @@
     CHECK(mb->meta_data()->findInt64(kKeyTime, &timeUs));
     meta->setInt64("timeUs", timeUs);
 
-#if 0
-    // Temporarily disable pre-roll till we have a full solution to handle
-    // both single seek and continous seek gracefully.
-    if (seekTimeUs > timeUs) {
-        sp<AMessage> extra = new AMessage;
-        extra->setInt64("resume-at-mediaTimeUs", seekTimeUs);
-        meta->setMessage("extra", extra);
-    }
-#endif
-
     if (trackType == MEDIA_TRACK_TYPE_VIDEO) {
         int32_t layerId;
         if (mb->meta_data()->findInt32(kKeyTemporalLayerId, &layerId)) {
@@ -1337,10 +1344,6 @@
         meta->setBuffer("mpegUserData", mpegUserData);
     }
 
-    if (actualTimeUs) {
-        *actualTimeUs = timeUs;
-    }
-
     mb->release();
     mb = NULL;
 
@@ -1358,7 +1361,7 @@
     }
 }
 
-void NuPlayer::GenericSource::onReadBuffer(sp<AMessage> msg) {
+void NuPlayer::GenericSource::onReadBuffer(const sp<AMessage>& msg) {
     int32_t tmpType;
     CHECK(msg->findInt32("trackType", &tmpType));
     media_track_type trackType = (media_track_type)tmpType;
@@ -1372,8 +1375,12 @@
 }
 
 void NuPlayer::GenericSource::readBuffer(
-        media_track_type trackType, int64_t seekTimeUs, int64_t *actualTimeUs, bool formatChange) {
+        media_track_type trackType, int64_t seekTimeUs, MediaPlayerSeekMode mode,
+        int64_t *actualTimeUs, bool formatChange) {
     // Do not read data if Widevine source is stopped
+    //
+    // TODO: revisit after widevine is removed.  May be able to
+    // combine mStopRead with mStarted.
     if (mStopRead) {
         return;
     }
@@ -1382,19 +1389,11 @@
     switch (trackType) {
         case MEDIA_TRACK_TYPE_VIDEO:
             track = &mVideoTrack;
-            if (mIsWidevine) {
-                maxBuffers = 2;
-            } else {
-                maxBuffers = 8;  // too large of a number may influence seeks
-            }
+            maxBuffers = 8;  // too large of a number may influence seeks
             break;
         case MEDIA_TRACK_TYPE_AUDIO:
             track = &mAudioTrack;
-            if (mIsWidevine) {
-                maxBuffers = 8;
-            } else {
-                maxBuffers = 64;
-            }
+            maxBuffers = 64;
             break;
         case MEDIA_TRACK_TYPE_SUBTITLE:
             track = &mSubtitleTrack;
@@ -1418,13 +1417,13 @@
 
     bool seeking = false;
     if (seekTimeUs >= 0) {
-        options.setSeekTo(seekTimeUs, MediaSource::ReadOptions::SEEK_PREVIOUS_SYNC);
+        options.setSeekTo(seekTimeUs, mode);
         seeking = true;
     }
 
-    const bool couldReadMultiple = (!mIsWidevine && track->mSource->supportReadMultiple());
+    const bool couldReadMultiple = (track->mSource->supportReadMultiple());
 
-    if (mIsWidevine || couldReadMultiple) {
+    if (couldReadMultiple) {
         options.setNonBlocking();
     }
 
@@ -1465,9 +1464,20 @@
 
             queueDiscontinuityIfNeeded(seeking, formatChange, trackType, track);
 
-            sp<ABuffer> buffer = mediaBufferToABuffer(
-                    mbuf, trackType, seekTimeUs,
-                    numBuffers == 0 ? actualTimeUs : NULL);
+            sp<ABuffer> buffer = mediaBufferToABuffer(mbuf, trackType);
+            if (numBuffers == 0 && actualTimeUs != nullptr) {
+                *actualTimeUs = timeUs;
+            }
+            if (seeking && buffer != nullptr) {
+                sp<AMessage> meta = buffer->meta();
+                if (meta != nullptr && mode == MediaPlayerSeekMode::SEEK_CLOSEST
+                        && seekTimeUs > timeUs) {
+                    sp<AMessage> extra = new AMessage;
+                    extra->setInt64("resume-at-mediaTimeUs", seekTimeUs);
+                    meta->setMessage("extra", extra);
+                }
+            }
+
             track->mPackets->queueAccessUnit(buffer);
             formatChange = false;
             seeking = false;
@@ -1528,24 +1538,66 @@
       mFirstDequeuedBufferRealUs(-1ll),
       mFirstDequeuedBufferMediaUs(-1ll),
       mlastDequeuedBufferMediaUs(-1ll) {
+      getDefaultBufferingSettings(&mSettings);
 }
 
 NuPlayer::GenericSource::BufferingMonitor::~BufferingMonitor() {
 }
 
+void NuPlayer::GenericSource::BufferingMonitor::getDefaultBufferingSettings(
+        BufferingSettings *buffering /* nonnull */) {
+    buffering->mInitialBufferingMode = BUFFERING_MODE_TIME_ONLY;
+    buffering->mRebufferingMode = BUFFERING_MODE_TIME_THEN_SIZE;
+    buffering->mInitialWatermarkMs = kHighWaterMarkMs;
+    buffering->mRebufferingWatermarkLowMs = kLowWaterMarkMs;
+    buffering->mRebufferingWatermarkHighMs = kHighWaterMarkRebufferMs;
+    buffering->mRebufferingWatermarkLowKB = kLowWaterMarkKB;
+    buffering->mRebufferingWatermarkHighKB = kHighWaterMarkKB;
+
+    ALOGV("BufferingMonitor::getDefaultBufferingSettings{%s}",
+            buffering->toString().string());
+}
+
+status_t NuPlayer::GenericSource::BufferingMonitor::setBufferingSettings(
+        const BufferingSettings &buffering) {
+    ALOGV("BufferingMonitor::setBufferingSettings{%s}",
+            buffering.toString().string());
+
+    Mutex::Autolock _l(mLock);
+    if (buffering.IsSizeBasedBufferingMode(buffering.mInitialBufferingMode)
+            || (buffering.IsTimeBasedBufferingMode(buffering.mRebufferingMode)
+                && buffering.mRebufferingWatermarkLowMs > buffering.mRebufferingWatermarkHighMs)
+            || (buffering.IsSizeBasedBufferingMode(buffering.mRebufferingMode)
+                && buffering.mRebufferingWatermarkLowKB > buffering.mRebufferingWatermarkHighKB)) {
+        return BAD_VALUE;
+    }
+    mSettings = buffering;
+    if (mSettings.mInitialBufferingMode == BUFFERING_MODE_NONE) {
+        mSettings.mInitialWatermarkMs = BufferingSettings::kNoWatermark;
+    }
+    if (!mSettings.IsTimeBasedBufferingMode(mSettings.mRebufferingMode)) {
+        mSettings.mRebufferingWatermarkLowMs = BufferingSettings::kNoWatermark;
+        mSettings.mRebufferingWatermarkHighMs = INT32_MAX;
+    }
+    if (!mSettings.IsSizeBasedBufferingMode(mSettings.mRebufferingMode)) {
+        mSettings.mRebufferingWatermarkLowKB = BufferingSettings::kNoWatermark;
+        mSettings.mRebufferingWatermarkHighKB = INT32_MAX;
+    }
+    return OK;
+}
+
 void NuPlayer::GenericSource::BufferingMonitor::prepare(
         const sp<NuCachedSource2> &cachedSource,
-        const sp<WVMExtractor> &wvmExtractor,
         int64_t durationUs,
         int64_t bitrate,
         bool isStreaming) {
     Mutex::Autolock _l(mLock);
-    prepare_l(cachedSource, wvmExtractor, durationUs, bitrate, isStreaming);
+    prepare_l(cachedSource, durationUs, bitrate, isStreaming);
 }
 
 void NuPlayer::GenericSource::BufferingMonitor::stop() {
     Mutex::Autolock _l(mLock);
-    prepare_l(NULL /* cachedSource */, NULL /* wvmExtractor */, -1 /* durationUs */,
+    prepare_l(NULL /* cachedSource */, -1 /* durationUs */,
             -1 /* bitrate */, false /* isStreaming */);
 }
 
@@ -1600,22 +1652,17 @@
 
 void NuPlayer::GenericSource::BufferingMonitor::prepare_l(
         const sp<NuCachedSource2> &cachedSource,
-        const sp<WVMExtractor> &wvmExtractor,
         int64_t durationUs,
         int64_t bitrate,
         bool isStreaming) {
-    ALOGW_IF(wvmExtractor != NULL && cachedSource != NULL,
-            "WVMExtractor and NuCachedSource are both present when "
-            "BufferingMonitor::prepare_l is called, ignore NuCachedSource");
 
     mCachedSource = cachedSource;
-    mWVMExtractor = wvmExtractor;
     mDurationUs = durationUs;
     mBitrate = bitrate;
     mIsStreaming = isStreaming;
     mAudioTimeUs = 0;
     mVideoTimeUs = 0;
-    mPrepareBuffering = (cachedSource != NULL || wvmExtractor != NULL);
+    mPrepareBuffering = (cachedSource != NULL);
     cancelPollBuffering_l();
     mOffloadAudio = false;
     mFirstDequeuedBufferRealUs = -1ll;
@@ -1699,9 +1746,7 @@
     int32_t kbps = 0;
     status_t err = UNKNOWN_ERROR;
 
-    if (mWVMExtractor != NULL) {
-        err = mWVMExtractor->getEstimatedBandwidthKbps(&kbps);
-    } else if (mCachedSource != NULL) {
+    if (mCachedSource != NULL) {
         err = mCachedSource->getEstimatedBandwidthKbps(&kbps);
     }
 
@@ -1741,10 +1786,7 @@
     int64_t cachedDurationUs = -1ll;
     ssize_t cachedDataRemaining = -1;
 
-    if (mWVMExtractor != NULL) {
-        cachedDurationUs =
-                mWVMExtractor->getCachedDurationUs(&finalStatus);
-    } else if (mCachedSource != NULL) {
+    if (mCachedSource != NULL) {
         cachedDataRemaining =
                 mCachedSource->approxDataRemaining(&finalStatus);
 
@@ -1772,7 +1814,9 @@
 
         stopBufferingIfNecessary_l();
         return;
-    } else if (cachedDurationUs >= 0ll) {
+    }
+
+    if (cachedDurationUs >= 0ll) {
         if (mDurationUs > 0ll) {
             int64_t cachedPosUs = getLastReadPosition_l() + cachedDurationUs;
             int percentage = 100.0 * cachedPosUs / mDurationUs;
@@ -1783,36 +1827,40 @@
             notifyBufferingUpdate_l(percentage);
         }
 
-        ALOGV("onPollBuffering_l: cachedDurationUs %.1f sec",
-                cachedDurationUs / 1000000.0f);
+        ALOGV("onPollBuffering_l: cachedDurationUs %.1f sec", cachedDurationUs / 1000000.0f);
 
-        if (cachedDurationUs < kLowWaterMarkUs) {
-            // Take into account the data cached in downstream components to try to avoid
-            // unnecessary pause.
-            if (mOffloadAudio && mFirstDequeuedBufferRealUs >= 0) {
-                int64_t downStreamCacheUs = mlastDequeuedBufferMediaUs - mFirstDequeuedBufferMediaUs
-                        - (ALooper::GetNowUs() - mFirstDequeuedBufferRealUs);
-                if (downStreamCacheUs > 0) {
-                    cachedDurationUs += downStreamCacheUs;
+        if (mPrepareBuffering) {
+            if (cachedDurationUs > mSettings.mInitialWatermarkMs * 1000) {
+                stopBufferingIfNecessary_l();
+            }
+        } else if (mSettings.IsTimeBasedBufferingMode(mSettings.mRebufferingMode)) {
+            if (cachedDurationUs < mSettings.mRebufferingWatermarkLowMs * 1000) {
+                // Take into account the data cached in downstream components to try to avoid
+                // unnecessary pause.
+                if (mOffloadAudio && mFirstDequeuedBufferRealUs >= 0) {
+                    int64_t downStreamCacheUs =
+                        mlastDequeuedBufferMediaUs - mFirstDequeuedBufferMediaUs
+                            - (ALooper::GetNowUs() - mFirstDequeuedBufferRealUs);
+                    if (downStreamCacheUs > 0) {
+                        cachedDurationUs += downStreamCacheUs;
+                    }
                 }
-            }
 
-            if (cachedDurationUs < kLowWaterMarkUs) {
-                startBufferingIfNecessary_l();
-            }
-        } else {
-            int64_t highWaterMark = mPrepareBuffering ? kHighWaterMarkUs : kHighWaterMarkRebufferUs;
-            if (cachedDurationUs > highWaterMark) {
+                if (cachedDurationUs < mSettings.mRebufferingWatermarkLowMs * 1000) {
+                    startBufferingIfNecessary_l();
+                }
+            } else if (cachedDurationUs > mSettings.mRebufferingWatermarkHighMs * 1000) {
                 stopBufferingIfNecessary_l();
             }
         }
-    } else if (cachedDataRemaining >= 0) {
+    } else if (cachedDataRemaining >= 0
+            && mSettings.IsSizeBasedBufferingMode(mSettings.mRebufferingMode)) {
         ALOGV("onPollBuffering_l: cachedDataRemaining %zd bytes",
                 cachedDataRemaining);
 
-        if (cachedDataRemaining < kLowWaterMarkBytes) {
+        if (cachedDataRemaining < (mSettings.mRebufferingWatermarkLowKB << 10)) {
             startBufferingIfNecessary_l();
-        } else if (cachedDataRemaining > kHighWaterMarkBytes) {
+        } else if (cachedDataRemaining > (mSettings.mRebufferingWatermarkHighKB << 10)) {
             stopBufferingIfNecessary_l();
         }
     }
@@ -1838,4 +1886,167 @@
     }
 }
 
+// Modular DRM
+status_t NuPlayer::GenericSource::prepareDrm(
+        const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId, sp<ICrypto> *crypto)
+{
+    ALOGV("prepareDrm");
+
+    sp<AMessage> msg = new AMessage(kWhatPrepareDrm, this);
+    // synchronous call so just passing the address but with local copies of "const" args
+    uint8_t UUID[16];
+    memcpy(UUID, uuid, sizeof(UUID));
+    Vector<uint8_t> sessionId = drmSessionId;
+    msg->setPointer("uuid", (void*)UUID);
+    msg->setPointer("drmSessionId", (void*)&sessionId);
+    msg->setPointer("crypto", (void*)crypto);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV_IF(status == OK, "prepareDrm: mCrypto: %p (%d)", crypto->get(),
+                (*crypto != NULL ? (*crypto)->getStrongCount() : 0));
+        ALOGD("prepareDrm ret: %d ", status);
+    } else {
+        ALOGE("prepareDrm err: %d", status);
+    }
+
+    return status;
+}
+
+status_t NuPlayer::GenericSource::releaseDrm()
+{
+    ALOGV("releaseDrm");
+
+    sp<AMessage> msg = new AMessage(kWhatReleaseDrm, this);
+
+    // synchronous call to update the source states before the player proceedes with crypto cleanup
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+
+    if (status == OK && response != NULL) {
+        ALOGD("releaseDrm ret: OK ");
+    } else {
+        ALOGE("releaseDrm err: %d", status);
+    }
+
+    return status;
+}
+
+status_t NuPlayer::GenericSource::onPrepareDrm(const sp<AMessage> &msg)
+{
+    ALOGV("onPrepareDrm ");
+
+    mIsDrmProtected = false;
+    mIsDrmReleased = false;
+    mIsSecure = false;
+
+    uint8_t *uuid;
+    Vector<uint8_t> *drmSessionId;
+    sp<ICrypto> *outCrypto;
+    CHECK(msg->findPointer("uuid", (void**)&uuid));
+    CHECK(msg->findPointer("drmSessionId", (void**)&drmSessionId));
+    CHECK(msg->findPointer("crypto", (void**)&outCrypto));
+
+    status_t status = OK;
+    sp<ICrypto> crypto = NuPlayerDrm::createCryptoAndPlugin(uuid, *drmSessionId, status);
+    if (crypto == NULL) {
+        ALOGE("onPrepareDrm: createCrypto failed. status: %d", status);
+        return status;
+    }
+    ALOGV("onPrepareDrm: createCryptoAndPlugin succeeded for uuid: %s",
+            DrmUUID::toHexString(uuid).string());
+
+    *outCrypto = crypto;
+    // as long a there is an active crypto
+    mIsDrmProtected = true;
+
+    if (mMimes.size() == 0) {
+        status = UNKNOWN_ERROR;
+        ALOGE("onPrepareDrm: Unexpected. Must have at least one track. status: %d", status);
+        return status;
+    }
+
+    // first mime in this list is either the video track, or the first audio track
+    const char *mime = mMimes[0].string();
+    mIsSecure = crypto->requiresSecureDecoderComponent(mime);
+    ALOGV("onPrepareDrm: requiresSecureDecoderComponent mime: %s  isSecure: %d",
+            mime, mIsSecure);
+
+    // Checking the member flags while in the looper to send out the notification.
+    // The legacy mDecryptHandle!=NULL check (for FLAG_PROTECTED) is equivalent to mIsDrmProtected.
+    notifyFlagsChanged(
+            (mIsSecure ? FLAG_SECURE : 0) |
+            // Setting "protected screen" only for L1: b/38390836
+            (mIsSecure ? FLAG_PROTECTED : 0) |
+            FLAG_CAN_PAUSE |
+            FLAG_CAN_SEEK_BACKWARD |
+            FLAG_CAN_SEEK_FORWARD |
+            FLAG_CAN_SEEK);
+
+    return status;
+}
+
+status_t NuPlayer::GenericSource::onReleaseDrm()
+{
+    if (mIsDrmProtected) {
+        mIsDrmProtected = false;
+        // to prevent returning any more buffer after stop/releaseDrm (b/37960096)
+        mIsDrmReleased = true;
+        ALOGV("onReleaseDrm: mIsDrmProtected is reset.");
+    } else {
+        ALOGE("onReleaseDrm: mIsDrmProtected is already false.");
+    }
+
+    return OK;
+}
+
+status_t NuPlayer::GenericSource::checkDrmInfo()
+{
+    // clearing the flag at prepare in case the player is reused after stop/releaseDrm with the
+    // same source without being reset (called by prepareAsync/initFromDataSource)
+    mIsDrmReleased = false;
+
+    if (mFileMeta == NULL) {
+        ALOGI("checkDrmInfo: No metadata");
+        return OK; // letting the caller responds accordingly
+    }
+
+    uint32_t type;
+    const void *pssh;
+    size_t psshsize;
+
+    if (!mFileMeta->findData(kKeyPssh, &type, &pssh, &psshsize)) {
+        ALOGV("checkDrmInfo: No PSSH");
+        return OK; // source without DRM info
+    }
+
+    Parcel parcel;
+    NuPlayerDrm::retrieveDrmInfo(pssh, psshsize, &parcel);
+    ALOGV("checkDrmInfo: MEDIA_DRM_INFO PSSH size: %d  Parcel size: %d  objects#: %d",
+          (int)psshsize, (int)parcel.dataSize(), (int)parcel.objectsCount());
+
+    if (parcel.dataSize() == 0) {
+        ALOGE("checkDrmInfo: Unexpected parcel size: 0");
+        return UNKNOWN_ERROR;
+    }
+
+    // Can't pass parcel as a message to the player. Converting Parcel->ABuffer to pass it
+    // to the Player's onSourceNotify then back to Parcel for calling driver's notifyListener.
+    sp<ABuffer> drmInfoBuffer = ABuffer::CreateAsCopy(parcel.data(), parcel.dataSize());
+    notifyDrmInfo(drmInfoBuffer);
+
+    return OK;
+}
+
+void NuPlayer::GenericSource::signalBufferReturned(MediaBuffer *buffer)
+{
+    //ALOGV("signalBufferReturned %p  refCount: %d", buffer, buffer->localRefcount());
+
+    buffer->setObserver(NULL);
+    buffer->release(); // this leads to delete since that there is no observor
+}
+
 }  // namespace android
diff --git a/media/libmediaplayerservice/nuplayer/GenericSource.h b/media/libmediaplayerservice/nuplayer/GenericSource.h
index 2fd703e..4064133 100644
--- a/media/libmediaplayerservice/nuplayer/GenericSource.h
+++ b/media/libmediaplayerservice/nuplayer/GenericSource.h
@@ -28,7 +28,6 @@
 namespace android {
 
 class DecryptHandle;
-class DrmManagerClient;
 struct AnotherPacketSource;
 struct ARTSPController;
 class DataSource;
@@ -37,9 +36,10 @@
 struct MediaSource;
 class MediaBuffer;
 struct NuCachedSource2;
-class WVMExtractor;
 
-struct NuPlayer::GenericSource : public NuPlayer::Source {
+struct NuPlayer::GenericSource : public NuPlayer::Source,
+                                 public MediaBufferObserver // Modular DRM
+{
     GenericSource(const sp<AMessage> &notify, bool uidValid, uid_t uid);
 
     status_t setDataSource(
@@ -51,6 +51,10 @@
 
     status_t setDataSource(const sp<DataSource>& dataSource);
 
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) override;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
+
     virtual void prepareAsync();
 
     virtual void start();
@@ -71,7 +75,9 @@
     virtual sp<AMessage> getTrackInfo(size_t trackIndex) const;
     virtual ssize_t getSelectedTrack(media_track_type type) const;
     virtual status_t selectTrack(size_t trackIndex, bool select, int64_t timeUs);
-    virtual status_t seekTo(int64_t seekTimeUs);
+    virtual status_t seekTo(
+        int64_t seekTimeUs,
+        MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) override;
 
     virtual status_t setBuffers(bool audio, Vector<MediaBuffer *> &buffers);
 
@@ -79,6 +85,15 @@
 
     virtual void setOffloadAudio(bool offload);
 
+    // Modular DRM
+    virtual void signalBufferReturned(MediaBuffer *buffer);
+
+    virtual status_t prepareDrm(
+            const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId, sp<ICrypto> *crypto);
+
+    virtual status_t releaseDrm();
+
+
 protected:
     virtual ~GenericSource();
 
@@ -101,10 +116,12 @@
         kWhatSelectTrack,
         kWhatSeek,
         kWhatReadBuffer,
-        kWhatStopWidevine,
         kWhatStart,
         kWhatResume,
         kWhatSecureDecodersInstantiated,
+        // Modular DRM
+        kWhatPrepareDrm,
+        kWhatReleaseDrm,
     };
 
     struct Track {
@@ -117,11 +134,13 @@
     // When necessary, it will send out buffering events to the player.
     struct BufferingMonitor : public AHandler {
     public:
-        BufferingMonitor(const sp<AMessage> &notify);
+        explicit BufferingMonitor(const sp<AMessage> &notify);
+
+        void getDefaultBufferingSettings(BufferingSettings *buffering /* nonnull */);
+        status_t setBufferingSettings(const BufferingSettings &buffering);
 
         // Set up state.
         void prepare(const sp<NuCachedSource2> &cachedSource,
-                const sp<WVMExtractor> &wvmExtractor,
                 int64_t durationUs,
                 int64_t bitrate,
                 bool isStreaming);
@@ -155,7 +174,6 @@
         sp<AMessage> mNotify;
 
         sp<NuCachedSource2> mCachedSource;
-        sp<WVMExtractor> mWVMExtractor;
         int64_t mDurationUs;
         int64_t mBitrate;
         bool mIsStreaming;
@@ -169,13 +187,13 @@
 
         mutable Mutex mLock;
 
+        BufferingSettings mSettings;
         bool mOffloadAudio;
         int64_t mFirstDequeuedBufferRealUs;
         int64_t mFirstDequeuedBufferMediaUs;
         int64_t mlastDequeuedBufferMediaUs;
 
         void prepare_l(const sp<NuCachedSource2> &cachedSource,
-                const sp<WVMExtractor> &wvmExtractor,
                 int64_t durationUs,
                 int64_t bitrate,
                 bool isStreaming);
@@ -204,7 +222,7 @@
     int32_t mFetchTimedTextDataGeneration;
     int64_t mDurationUs;
     bool mAudioIsVorbis;
-    bool mIsWidevine;
+    // Secure codec is required.
     bool mIsSecure;
     bool mIsStreaming;
     bool mUIDValid;
@@ -219,10 +237,7 @@
     sp<DataSource> mDataSource;
     sp<NuCachedSource2> mCachedSource;
     sp<DataSource> mHttpSource;
-    sp<WVMExtractor> mWVMExtractor;
     sp<MetaData> mFileMeta;
-    DrmManagerClient *mDrmManagerClient;
-    sp<DecryptHandle> mDecryptHandle;
     bool mStarted;
     bool mStopRead;
     int64_t mBitrate;
@@ -239,32 +254,33 @@
     void resetDataSource();
 
     status_t initFromDataSource();
-    void checkDrmStatus(const sp<DataSource>& dataSource);
     int64_t getLastReadPosition();
-    void setDrmPlaybackStatusIfNeeded(int playbackStatus, int64_t position);
 
     void notifyPreparedAndCleanup(status_t err);
     void onSecureDecodersInstantiated(status_t err);
     void finishPrepareAsync();
     status_t startSources();
 
-    void onGetFormatMeta(sp<AMessage> msg) const;
+    void onGetFormatMeta(const sp<AMessage>& msg) const;
     sp<MetaData> doGetFormatMeta(bool audio) const;
 
-    void onGetSelectedTrack(sp<AMessage> msg) const;
+    void onGetTrackInfo(const sp<AMessage>& msg) const;
+    sp<AMessage> doGetTrackInfo(size_t trackIndex) const;
+
+    void onGetSelectedTrack(const sp<AMessage>& msg) const;
     ssize_t doGetSelectedTrack(media_track_type type) const;
 
-    void onSelectTrack(sp<AMessage> msg);
+    void onSelectTrack(const sp<AMessage>& msg);
     status_t doSelectTrack(size_t trackIndex, bool select, int64_t timeUs);
 
-    void onSeek(sp<AMessage> msg);
-    status_t doSeek(int64_t seekTimeUs);
+    void onSeek(const sp<AMessage>& msg);
+    status_t doSeek(int64_t seekTimeUs, MediaPlayerSeekMode mode);
 
     void onPrepareAsync();
 
     void fetchTextData(
             uint32_t what, media_track_type type,
-            int32_t curGen, sp<AnotherPacketSource> packets, sp<AMessage> msg);
+            int32_t curGen, const sp<AnotherPacketSource>& packets, const sp<AMessage>& msg);
 
     void sendGlobalTextData(
             uint32_t what,
@@ -272,23 +288,39 @@
 
     void sendTextData(
             uint32_t what, media_track_type type,
-            int32_t curGen, sp<AnotherPacketSource> packets, sp<AMessage> msg);
+            int32_t curGen, const sp<AnotherPacketSource>& packets, const sp<AMessage>& msg);
 
     sp<ABuffer> mediaBufferToABuffer(
             MediaBuffer *mbuf,
-            media_track_type trackType,
-            int64_t seekTimeUs,
-            int64_t *actualTimeUs = NULL);
+            media_track_type trackType);
 
     void postReadBuffer(media_track_type trackType);
-    void onReadBuffer(sp<AMessage> msg);
+    void onReadBuffer(const sp<AMessage>& msg);
+    // When |mode| is MediaPlayerSeekMode::SEEK_CLOSEST, the buffer read shall
+    // include an item indicating skipping rendering all buffers with timestamp
+    // earlier than |seekTimeUs|.
+    // For other modes, the buffer read will not include the item as above in order
+    // to facilitate fast seek operation.
     void readBuffer(
             media_track_type trackType,
-            int64_t seekTimeUs = -1ll, int64_t *actualTimeUs = NULL, bool formatChange = false);
+            int64_t seekTimeUs = -1ll,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC,
+            int64_t *actualTimeUs = NULL, bool formatChange = false);
 
     void queueDiscontinuityIfNeeded(
             bool seeking, bool formatChange, media_track_type trackType, Track *track);
 
+    // Modular DRM
+    // The source is DRM protected and is prepared for DRM.
+    bool mIsDrmProtected;
+    // releaseDrm has been processed.
+    bool mIsDrmReleased;
+    Vector<String8> mMimes;
+
+    status_t checkDrmInfo();
+    status_t onPrepareDrm(const sp<AMessage> &msg);
+    status_t onReleaseDrm();
+
     DISALLOW_EVIL_CONSTRUCTORS(GenericSource);
 };
 
diff --git a/media/libmediaplayerservice/nuplayer/HTTPLiveSource.cpp b/media/libmediaplayerservice/nuplayer/HTTPLiveSource.cpp
index 5027e01..ad4c223 100644
--- a/media/libmediaplayerservice/nuplayer/HTTPLiveSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/HTTPLiveSource.cpp
@@ -32,6 +32,11 @@
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/Utils.h>
 
+// default buffer prepare/ready/underflow marks
+static const int kReadyMarkMs     = 5000;  // 5 seconds
+static const int kPrepareMarkMs   = 1500;  // 1.5 seconds
+static const int kUnderflowMarkMs = 1000;  // 1 second
+
 namespace android {
 
 NuPlayer::HTTPLiveSource::HTTPLiveSource(
@@ -49,6 +54,7 @@
       mFetchMetaDataGeneration(0),
       mHasMetadata(false),
       mMetadataSelected(false) {
+    getDefaultBufferingSettings(&mBufferingSettings);
     if (headers) {
         mExtraHeaders = *headers;
 
@@ -76,6 +82,42 @@
     }
 }
 
+status_t NuPlayer::HTTPLiveSource::getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) {
+    buffering->mInitialBufferingMode = BUFFERING_MODE_TIME_ONLY;
+    buffering->mRebufferingMode = BUFFERING_MODE_TIME_ONLY;
+    buffering->mInitialWatermarkMs = kPrepareMarkMs;
+    buffering->mRebufferingWatermarkLowMs = kUnderflowMarkMs;
+    buffering->mRebufferingWatermarkHighMs = kReadyMarkMs;
+
+    return OK;
+}
+
+status_t NuPlayer::HTTPLiveSource::setBufferingSettings(const BufferingSettings& buffering) {
+    if (buffering.IsSizeBasedBufferingMode(buffering.mInitialBufferingMode)
+            || buffering.IsSizeBasedBufferingMode(buffering.mRebufferingMode)
+            || (buffering.IsTimeBasedBufferingMode(buffering.mRebufferingMode)
+                && buffering.mRebufferingWatermarkLowMs > buffering.mRebufferingWatermarkHighMs)) {
+        return BAD_VALUE;
+    }
+
+    mBufferingSettings = buffering;
+
+    if (mBufferingSettings.mInitialBufferingMode == BUFFERING_MODE_NONE) {
+        mBufferingSettings.mInitialWatermarkMs = BufferingSettings::kNoWatermark;
+    }
+    if (mBufferingSettings.mRebufferingMode == BUFFERING_MODE_NONE) {
+        mBufferingSettings.mRebufferingWatermarkLowMs = BufferingSettings::kNoWatermark;
+        mBufferingSettings.mRebufferingWatermarkHighMs = INT32_MAX;
+    }
+
+    if (mLiveSession != NULL) {
+        mLiveSession->setBufferingSettings(mBufferingSettings);
+    }
+
+    return OK;
+}
+
 void NuPlayer::HTTPLiveSource::prepareAsync() {
     if (mLiveLooper == NULL) {
         mLiveLooper = new ALooper;
@@ -94,6 +136,7 @@
 
     mLiveLooper->registerHandler(mLiveSession);
 
+    mLiveSession->setBufferingSettings(mBufferingSettings);
     mLiveSession->connectAsync(
             mURL.c_str(), mExtraHeaders.isEmpty() ? NULL : &mExtraHeaders);
 }
@@ -214,8 +257,12 @@
     return (err == OK || err == BAD_VALUE) ? (status_t)OK : err;
 }
 
-status_t NuPlayer::HTTPLiveSource::seekTo(int64_t seekTimeUs) {
-    return mLiveSession->seekTo(seekTimeUs);
+status_t NuPlayer::HTTPLiveSource::seekTo(int64_t seekTimeUs, MediaPlayerSeekMode mode) {
+    if (mLiveSession->isSeekable()) {
+        return mLiveSession->seekTo(seekTimeUs, mode);
+    } else {
+        return INVALID_OPERATION;
+    }
 }
 
 void NuPlayer::HTTPLiveSource::pollForRawData(
@@ -317,8 +364,9 @@
                 notifyVideoSizeChanged();
             }
 
-            uint32_t flags = FLAG_CAN_PAUSE;
+            uint32_t flags = 0;
             if (mLiveSession->isSeekable()) {
+                flags |= FLAG_CAN_PAUSE;
                 flags |= FLAG_CAN_SEEK;
                 flags |= FLAG_CAN_SEEK_BACKWARD;
                 flags |= FLAG_CAN_SEEK_FORWARD;
diff --git a/media/libmediaplayerservice/nuplayer/HTTPLiveSource.h b/media/libmediaplayerservice/nuplayer/HTTPLiveSource.h
index 574937d..2866a6a 100644
--- a/media/libmediaplayerservice/nuplayer/HTTPLiveSource.h
+++ b/media/libmediaplayerservice/nuplayer/HTTPLiveSource.h
@@ -34,6 +34,10 @@
             const char *url,
             const KeyedVector<String8, String8> *headers);
 
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) override;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
+
     virtual void prepareAsync();
     virtual void start();
 
@@ -47,7 +51,9 @@
     virtual sp<AMessage> getTrackInfo(size_t trackIndex) const;
     virtual ssize_t getSelectedTrack(media_track_type /* type */) const;
     virtual status_t selectTrack(size_t trackIndex, bool select, int64_t timeUs);
-    virtual status_t seekTo(int64_t seekTimeUs);
+    virtual status_t seekTo(
+            int64_t seekTimeUs,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) override;
 
 protected:
     virtual ~HTTPLiveSource();
@@ -78,6 +84,7 @@
     int32_t mFetchMetaDataGeneration;
     bool mHasMetadata;
     bool mMetadataSelected;
+    BufferingSettings mBufferingSettings;
 
     void onSessionNotify(const sp<AMessage> &msg);
     void pollForRawData(
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
index dc4e5d4..6ded392 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
@@ -16,6 +16,9 @@
 
 //#define LOG_NDEBUG 0
 #define LOG_TAG "NuPlayer"
+
+#include <inttypes.h>
+
 #include <utils/Log.h>
 
 #include "NuPlayer.h"
@@ -39,6 +42,7 @@
 
 #include <media/AudioResamplerPublic.h>
 #include <media/AVSyncSettings.h>
+#include <media/MediaCodecBuffer.h>
 
 #include <media/stagefright/foundation/hexdump.h>
 #include <media/stagefright/foundation/ABuffer.h>
@@ -69,22 +73,24 @@
 };
 
 struct NuPlayer::SeekAction : public Action {
-    SeekAction(int64_t seekTimeUs)
-        : mSeekTimeUs(seekTimeUs) {
+    explicit SeekAction(int64_t seekTimeUs, MediaPlayerSeekMode mode)
+        : mSeekTimeUs(seekTimeUs),
+          mMode(mode) {
     }
 
     virtual void execute(NuPlayer *player) {
-        player->performSeek(mSeekTimeUs);
+        player->performSeek(mSeekTimeUs, mMode);
     }
 
 private:
     int64_t mSeekTimeUs;
+    MediaPlayerSeekMode mMode;
 
     DISALLOW_EVIL_CONSTRUCTORS(SeekAction);
 };
 
 struct NuPlayer::ResumeDecoderAction : public Action {
-    ResumeDecoderAction(bool needNotify)
+    explicit ResumeDecoderAction(bool needNotify)
         : mNeedNotify(needNotify) {
     }
 
@@ -99,7 +105,7 @@
 };
 
 struct NuPlayer::SetSurfaceAction : public Action {
-    SetSurfaceAction(const sp<Surface> &surface)
+    explicit SetSurfaceAction(const sp<Surface> &surface)
         : mSurface(surface) {
     }
 
@@ -131,7 +137,7 @@
 };
 
 struct NuPlayer::PostMessageAction : public Action {
-    PostMessageAction(const sp<AMessage> &msg)
+    explicit PostMessageAction(const sp<AMessage> &msg)
         : mMessage(msg) {
     }
 
@@ -150,7 +156,7 @@
 struct NuPlayer::SimpleAction : public Action {
     typedef void (NuPlayer::*ActionFunc)();
 
-    SimpleAction(ActionFunc func)
+    explicit SimpleAction(ActionFunc func)
         : mFunc(func) {
     }
 
@@ -191,9 +197,13 @@
       mPrepared(false),
       mResetting(false),
       mSourceStarted(false),
+      mAudioDecoderError(false),
+      mVideoDecoderError(false),
       mPaused(false),
       mPausedByClient(true),
-      mPausedForBuffering(false) {
+      mPausedForBuffering(false),
+      mIsDrmProtected(false),
+      mDataSourceType(DATA_SOURCE_TYPE_NONE) {
     clearFlushComplete();
 }
 
@@ -216,6 +226,7 @@
 
     msg->setObject("source", new StreamingSource(notify, source));
     msg->post();
+    mDataSourceType = DATA_SOURCE_TYPE_STREAM;
 }
 
 static bool IsHTTPLiveURL(const char *url) {
@@ -248,21 +259,26 @@
     sp<Source> source;
     if (IsHTTPLiveURL(url)) {
         source = new HTTPLiveSource(notify, httpService, url, headers);
+        ALOGV("setDataSourceAsync HTTPLiveSource %s", url);
+        mDataSourceType = DATA_SOURCE_TYPE_HTTP_LIVE;
     } else if (!strncasecmp(url, "rtsp://", 7)) {
         source = new RTSPSource(
                 notify, httpService, url, headers, mUIDValid, mUID);
+        ALOGV("setDataSourceAsync RTSPSource %s", url);
+        mDataSourceType = DATA_SOURCE_TYPE_RTSP;
     } else if ((!strncasecmp(url, "http://", 7)
                 || !strncasecmp(url, "https://", 8))
                     && ((len >= 4 && !strcasecmp(".sdp", &url[len - 4]))
                     || strstr(url, ".sdp?"))) {
         source = new RTSPSource(
                 notify, httpService, url, headers, mUIDValid, mUID, true);
+        ALOGV("setDataSourceAsync RTSPSource http/https/.sdp %s", url);
+        mDataSourceType = DATA_SOURCE_TYPE_RTSP;
     } else {
+        ALOGV("setDataSourceAsync GenericSource %s", url);
+
         sp<GenericSource> genericSource =
                 new GenericSource(notify, mUIDValid, mUID);
-        // Don't set FLAG_SECURE on mSourceFlags here for widevine.
-        // The correct flags will be updated in Source::kWhatFlagsChanged
-        // handler when  GenericSource is prepared.
 
         status_t err = genericSource->setDataSource(httpService, url, headers);
 
@@ -271,6 +287,9 @@
         } else {
             ALOGE("Failed to set data source!");
         }
+
+        // regardless of success/failure
+        mDataSourceType = DATA_SOURCE_TYPE_GENERIC_URL;
     }
     msg->setObject("source", source);
     msg->post();
@@ -284,6 +303,9 @@
     sp<GenericSource> source =
             new GenericSource(notify, mUIDValid, mUID);
 
+    ALOGV("setDataSourceAsync fd %d/%lld/%lld source: %p",
+            fd, (long long)offset, (long long)length, source.get());
+
     status_t err = source->setDataSource(fd, offset, length);
 
     if (err != OK) {
@@ -293,6 +315,7 @@
 
     msg->setObject("source", source);
     msg->post();
+    mDataSourceType = DATA_SOURCE_TYPE_GENERIC_FD;
 }
 
 void NuPlayer::setDataSourceAsync(const sp<DataSource> &dataSource) {
@@ -309,9 +332,37 @@
 
     msg->setObject("source", source);
     msg->post();
+    mDataSourceType = DATA_SOURCE_TYPE_MEDIA;
+}
+
+status_t NuPlayer::getDefaultBufferingSettings(
+        BufferingSettings *buffering /* nonnull */) {
+    sp<AMessage> msg = new AMessage(kWhatGetDefaultBufferingSettings, this);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+        if (err == OK) {
+            readFromAMessage(response, buffering);
+        }
+    }
+    return err;
+}
+
+status_t NuPlayer::setBufferingSettings(const BufferingSettings& buffering) {
+    sp<AMessage> msg = new AMessage(kWhatSetBufferingSettings, this);
+    writeToAMessage(msg, buffering);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+    }
+    return err;
 }
 
 void NuPlayer::prepareAsync() {
+    ALOGV("prepareAsync");
+
     (new AMessage(kWhatPrepare, this))->post();
 }
 
@@ -419,16 +470,17 @@
     (new AMessage(kWhatReset, this))->post();
 }
 
-void NuPlayer::seekToAsync(int64_t seekTimeUs, bool needNotify) {
+void NuPlayer::seekToAsync(int64_t seekTimeUs, MediaPlayerSeekMode mode, bool needNotify) {
     sp<AMessage> msg = new AMessage(kWhatSeek, this);
     msg->setInt64("seekTimeUs", seekTimeUs);
+    msg->setInt32("mode", mode);
     msg->setInt32("needNotify", needNotify);
     msg->post();
 }
 
 
 void NuPlayer::writeTrackInfo(
-        Parcel* reply, const sp<AMessage> format) const {
+        Parcel* reply, const sp<AMessage>& format) const {
     if (format == NULL) {
         ALOGE("NULL format");
         return;
@@ -504,8 +556,52 @@
             break;
         }
 
+        case kWhatGetDefaultBufferingSettings:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+
+            ALOGV("kWhatGetDefaultBufferingSettings");
+            BufferingSettings buffering;
+            status_t err = OK;
+            if (mSource != NULL) {
+                err = mSource->getDefaultBufferingSettings(&buffering);
+            } else {
+                err = INVALID_OPERATION;
+            }
+            sp<AMessage> response = new AMessage;
+            if (err == OK) {
+                writeToAMessage(response, buffering);
+            }
+            response->setInt32("err", err);
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatSetBufferingSettings:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+
+            ALOGV("kWhatSetBufferingSettings");
+            BufferingSettings buffering;
+            readFromAMessage(msg, &buffering);
+            status_t err = OK;
+            if (mSource != NULL) {
+                err = mSource->setBufferingSettings(buffering);
+            } else {
+                err = INVALID_OPERATION;
+            }
+            sp<AMessage> response = new AMessage;
+            response->setInt32("err", err);
+            response->postReply(replyID);
+            break;
+        }
+
         case kWhatPrepare:
         {
+            ALOGV("onMessageReceived kWhatPrepare");
+
             mSource->prepareAsync();
             break;
         }
@@ -680,7 +776,8 @@
                     int64_t currentPositionUs = 0;
                     if (getCurrentPosition(&currentPositionUs) == OK) {
                         mDeferredActions.push_back(
-                                new SeekAction(currentPositionUs));
+                                new SeekAction(currentPositionUs,
+                                        MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */));
                     }
                 }
 
@@ -1008,12 +1105,14 @@
                 ALOGV("%s shutdown completed", audio ? "audio" : "video");
                 if (audio) {
                     mAudioDecoder.clear();
+                    mAudioDecoderError = false;
                     ++mAudioDecoderGeneration;
 
                     CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
                     mFlushingAudio = SHUT_DOWN;
                 } else {
                     mVideoDecoder.clear();
+                    mVideoDecoderError = false;
                     ++mVideoDecoderGeneration;
 
                     CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
@@ -1061,11 +1160,6 @@
                     case SHUTTING_DOWN_DECODER:
                         break; // Wait for shutdown to complete.
                     case FLUSHED:
-                        // Widevine source reads must stop before releasing the video decoder.
-                        if (!audio && mSource != NULL && mSourceFlags & Source::FLAG_SECURE) {
-                            mSource->stop();
-                            mSourceStarted = false;
-                        }
                         getDecoder(audio)->initiateShutdown(); // In the middle of a seek.
                         *flushing = SHUTTING_DOWN_DECODER;     // Shut down.
                         break;
@@ -1073,7 +1167,31 @@
                         finishFlushIfPossible();  // Should not occur.
                         break;                    // Finish anyways.
                 }
-                notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
+                if (mSource != nullptr) {
+                    if (audio) {
+                        if (mVideoDecoderError || mSource->getFormat(false /* audio */) == NULL
+                                || mSurface == NULL) {
+                            // When both audio and video have error, or this stream has only audio
+                            // which has error, notify client of error.
+                            notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
+                        } else {
+                            // Only audio track has error. Video track could be still good to play.
+                            notifyListener(MEDIA_INFO, MEDIA_INFO_PLAY_AUDIO_ERROR, err);
+                        }
+                        mAudioDecoderError = true;
+                    } else {
+                        if (mAudioDecoderError || mSource->getFormat(true /* audio */) == NULL
+                                || mAudioSink == NULL) {
+                            // When both audio and video have error, or this stream has only video
+                            // which has error, notify client of error.
+                            notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
+                        } else {
+                            // Only video track has error. Audio track could be still good to play.
+                            notifyListener(MEDIA_INFO, MEDIA_INFO_PLAY_VIDEO_ERROR, err);
+                        }
+                        mVideoDecoderError = true;
+                    }
+                }
             } else {
                 ALOGV("Unhandled decoder notification %d '%c%c%c%c'.",
                       what,
@@ -1196,12 +1314,14 @@
         case kWhatSeek:
         {
             int64_t seekTimeUs;
+            int32_t mode;
             int32_t needNotify;
             CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
+            CHECK(msg->findInt32("mode", &mode));
             CHECK(msg->findInt32("needNotify", &needNotify));
 
-            ALOGV("kWhatSeek seekTimeUs=%lld us, needNotify=%d",
-                    (long long)seekTimeUs, needNotify);
+            ALOGV("kWhatSeek seekTimeUs=%lld us, mode=%d, needNotify=%d",
+                    (long long)seekTimeUs, mode, needNotify);
 
             if (!mStarted) {
                 // Seek before the player is started. In order to preview video,
@@ -1209,7 +1329,7 @@
                 // only once if needed. After the player is started, any seek
                 // operation will go through normal path.
                 // Audio-only cases are handled separately.
-                onStart(seekTimeUs);
+                onStart(seekTimeUs, (MediaPlayerSeekMode)mode);
                 if (mStarted) {
                     onPause();
                     mPausedByClient = true;
@@ -1225,7 +1345,7 @@
                                            FLUSH_CMD_FLUSH /* video */));
 
             mDeferredActions.push_back(
-                    new SeekAction(seekTimeUs));
+                    new SeekAction(seekTimeUs, (MediaPlayerSeekMode)mode));
 
             // After a flush without shutdown, decoder is paused.
             // Don't resume it until source seek is done, otherwise it could
@@ -1256,6 +1376,30 @@
             break;
         }
 
+        case kWhatPrepareDrm:
+        {
+            status_t status = onPrepareDrm(msg);
+
+            sp<AMessage> response = new AMessage;
+            response->setInt32("status", status);
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatReleaseDrm:
+        {
+            status_t status = onReleaseDrm();
+
+            sp<AMessage> response = new AMessage;
+            response->setInt32("status", status);
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+            response->postReply(replyID);
+            break;
+        }
+
         default:
             TRESPASS();
             break;
@@ -1283,6 +1427,8 @@
     } else {
         ALOGW("resume called when renderer is gone or not set");
     }
+
+    mLastStartedPlayingTimeNs = systemTime();
 }
 
 status_t NuPlayer::onInstantiateSecureDecoders() {
@@ -1314,13 +1460,16 @@
     return OK;
 }
 
-void NuPlayer::onStart(int64_t startPositionUs) {
+void NuPlayer::onStart(int64_t startPositionUs, MediaPlayerSeekMode mode) {
+    ALOGV("onStart: mCrypto: %p (%d)", mCrypto.get(),
+            (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+
     if (!mSourceStarted) {
         mSourceStarted = true;
         mSource->start();
     }
     if (startPositionUs > 0) {
-        performSeek(startPositionUs);
+        performSeek(startPositionUs, mode);
         if (mSource->getFormat(false /* audio */) == NULL) {
             return;
         }
@@ -1338,27 +1487,34 @@
         flags |= Renderer::FLAG_REAL_TIME;
     }
 
-    sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
-    sp<MetaData> videoMeta = mSource->getFormatMeta(false /* audio */);
-    if (audioMeta == NULL && videoMeta == NULL) {
+    bool hasAudio = (mSource->getFormat(true /* audio */) != NULL);
+    bool hasVideo = (mSource->getFormat(false /* audio */) != NULL);
+    if (!hasAudio && !hasVideo) {
         ALOGE("no metadata for either audio or video source");
         mSource->stop();
         mSourceStarted = false;
         notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, ERROR_MALFORMED);
         return;
     }
-    ALOGV_IF(audioMeta == NULL, "no metadata for audio source");  // video only stream
+    ALOGV_IF(!hasAudio, "no metadata for audio source");  // video only stream
+
+    sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
 
     audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
     if (mAudioSink != NULL) {
         streamType = mAudioSink->getAudioStreamType();
     }
 
-    sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
-
     mOffloadAudio =
-        canOffloadStream(audioMeta, (videoFormat != NULL), mSource->isStreaming(), streamType)
+        canOffloadStream(audioMeta, hasVideo, mSource->isStreaming(), streamType)
                 && (mPlaybackSettings.mSpeed == 1.f && mPlaybackSettings.mPitch == 1.f);
+
+    // Modular DRM: Disabling audio offload if the source is protected
+    if (mOffloadAudio && mIsDrmProtected) {
+        mOffloadAudio = false;
+        ALOGV("onStart: Disabling mOffloadAudio now that the source is protected.");
+    }
+
     if (mOffloadAudio) {
         flags |= Renderer::FLAG_OFFLOAD_AUDIO;
     }
@@ -1392,6 +1548,8 @@
         mAudioDecoder->setRenderer(mRenderer);
     }
 
+    mLastStartedPlayingTimeNs = systemTime();
+
     postScanSources();
 }
 
@@ -1410,6 +1568,14 @@
     } else {
         ALOGW("pause called when renderer is gone or not set");
     }
+
+    sp<NuPlayerDriver> driver = mDriver.promote();
+    if (driver != NULL) {
+        int64_t now = systemTime();
+        int64_t played = now - mLastStartedPlayingTimeNs;
+
+        driver->notifyMorePlayingTimeUs((played+500)/1000);
+    }
 }
 
 bool NuPlayer::audioDecoderStillNeeded() {
@@ -1439,13 +1605,6 @@
             *state = SHUTTING_DOWN_DECODER;
 
             ALOGV("initiating %s decoder shutdown", audio ? "audio" : "video");
-            if (!audio) {
-                // Widevine source reads must stop before releasing the video decoder.
-                if (mSource != NULL && mSourceFlags & Source::FLAG_SECURE) {
-                    mSource->stop();
-                    mSourceStarted = false;
-                }
-            }
             getDecoder(audio)->initiateShutdown();
             break;
         }
@@ -1496,7 +1655,8 @@
     // is possible; otherwise the decoders call the renderer openAudioSink directly.
 
     status_t err = mRenderer->openAudioSink(
-            format, true /* offloadOnly */, hasVideo, AUDIO_OUTPUT_FLAG_NONE, &mOffloadAudio);
+            format, true /* offloadOnly */, hasVideo,
+            AUDIO_OUTPUT_FLAG_NONE, &mOffloadAudio, mSource->isStreaming());
     if (err != OK) {
         // Any failure we turn off mOffloadAudio.
         mOffloadAudio = false;
@@ -1514,6 +1674,7 @@
     if (mAudioDecoder != NULL) {
         mAudioDecoder->pause();
         mAudioDecoder.clear();
+        mAudioDecoderError = false;
         ++mAudioDecoderGeneration;
     }
     if (mFlushingAudio == FLUSHING_DECODER) {
@@ -1536,7 +1697,7 @@
         mRenderer->flush(false /* audio */, false /* notifyComplete */);
     }
 
-    performSeek(currentPositionUs);
+    performSeek(currentPositionUs, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */);
 
     if (forceNonOffload) {
         mRenderer->signalDisableOffloadAudio();
@@ -1562,9 +1723,16 @@
     sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
     audio_stream_type_t streamType = mAudioSink->getAudioStreamType();
     const bool hasVideo = (videoFormat != NULL);
-    const bool canOffload = canOffloadStream(
+    bool canOffload = canOffloadStream(
             audioMeta, hasVideo, mSource->isStreaming(), streamType)
                     && (mPlaybackSettings.mSpeed == 1.f && mPlaybackSettings.mPitch == 1.f);
+
+    // Modular DRM: Disabling audio offload if the source is protected
+    if (canOffload && mIsDrmProtected) {
+        canOffload = false;
+        ALOGV("determineAudioModeChange: Disabling mOffloadAudio b/c the source is protected.");
+    }
+
     if (canOffload) {
         if (!mOffloadAudio) {
             mRenderer->signalEnableOffloadAudio();
@@ -1637,56 +1805,44 @@
             const bool hasVideo = (mSource->getFormat(false /*audio */) != NULL);
             format->setInt32("has-video", hasVideo);
             *decoder = new DecoderPassThrough(notify, mSource, mRenderer);
+            ALOGV("instantiateDecoder audio DecoderPassThrough  hasVideo: %d", hasVideo);
         } else {
             mSource->setOffloadAudio(false /* offload */);
 
-            *decoder = new Decoder(notify, mSource, mPID, mRenderer);
+            *decoder = new Decoder(notify, mSource, mPID, mUID, mRenderer);
+            ALOGV("instantiateDecoder audio Decoder");
         }
+        mAudioDecoderError = false;
     } else {
         sp<AMessage> notify = new AMessage(kWhatVideoNotify, this);
         ++mVideoDecoderGeneration;
         notify->setInt32("generation", mVideoDecoderGeneration);
 
         *decoder = new Decoder(
-                notify, mSource, mPID, mRenderer, mSurface, mCCDecoder);
+                notify, mSource, mPID, mUID, mRenderer, mSurface, mCCDecoder);
+        mVideoDecoderError = false;
 
         // enable FRC if high-quality AV sync is requested, even if not
         // directly queuing to display, as this will even improve textureview
         // playback.
         {
-            char value[PROPERTY_VALUE_MAX];
-            if (property_get("persist.sys.media.avsync", value, NULL) &&
-                    (!strcmp("1", value) || !strcasecmp("true", value))) {
+            if (property_get_bool("persist.sys.media.avsync", false)) {
                 format->setInt32("auto-frc", 1);
             }
         }
     }
     (*decoder)->init();
-    (*decoder)->configure(format);
 
-    // allocate buffers to decrypt widevine source buffers
-    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
-        Vector<sp<ABuffer> > inputBufs;
-        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
-
-        Vector<MediaBuffer *> mediaBufs;
-        for (size_t i = 0; i < inputBufs.size(); i++) {
-            const sp<ABuffer> &buffer = inputBufs[i];
-            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
-            mediaBufs.push(mbuf);
-        }
-
-        status_t err = mSource->setBuffers(audio, mediaBufs);
-        if (err != OK) {
-            for (size_t i = 0; i < mediaBufs.size(); ++i) {
-                mediaBufs[i]->release();
-            }
-            mediaBufs.clear();
-            ALOGE("Secure source didn't support secure mediaBufs.");
-            return err;
-        }
+    // Modular DRM
+    if (mIsDrmProtected) {
+        format->setPointer("crypto", mCrypto.get());
+        ALOGV("instantiateDecoder: mCrypto: %p (%d) isSecure: %d", mCrypto.get(),
+                (mCrypto != NULL ? mCrypto->getStrongCount() : 0),
+                (mSourceFlags & Source::FLAG_SECURE) != 0);
     }
 
+    (*decoder)->configure(format);
+
     if (!audio) {
         sp<AMessage> params = new AMessage();
         float rate = getFrameRate();
@@ -1718,6 +1874,16 @@
         notifyListener(MEDIA_SET_VIDEO_SIZE, 0, 0);
         return;
     }
+    int32_t err = OK;
+    inputFormat->findInt32("err", &err);
+    if (err == -EWOULDBLOCK) {
+        ALOGW("Video meta is not available yet!");
+        return;
+    }
+    if (err != OK) {
+        ALOGW("Something is wrong with video meta!");
+        return;
+    }
 
     int32_t displayWidth, displayHeight;
     if (outputFormat != NULL) {
@@ -1749,12 +1915,27 @@
     // Take into account sample aspect ratio if necessary:
     int32_t sarWidth, sarHeight;
     if (inputFormat->findInt32("sar-width", &sarWidth)
-            && inputFormat->findInt32("sar-height", &sarHeight)) {
+            && inputFormat->findInt32("sar-height", &sarHeight)
+            && sarWidth > 0 && sarHeight > 0) {
         ALOGV("Sample aspect ratio %d : %d", sarWidth, sarHeight);
 
         displayWidth = (displayWidth * sarWidth) / sarHeight;
 
         ALOGV("display dimensions %d x %d", displayWidth, displayHeight);
+    } else {
+        int32_t width, height;
+        if (inputFormat->findInt32("display-width", &width)
+                && inputFormat->findInt32("display-height", &height)
+                && width > 0 && height > 0
+                && displayWidth > 0 && displayHeight > 0) {
+            if (displayHeight * (int64_t)width / height > (int64_t)displayWidth) {
+                displayHeight = (int32_t)(displayWidth * (int64_t)height / width);
+            } else {
+                displayWidth = (int32_t)(displayHeight * (int64_t)width / height);
+            }
+            ALOGV("Video display width and height are overridden to %d x %d",
+                 displayWidth, displayHeight);
+        }
     }
 
     int32_t rotationDegrees;
@@ -1802,8 +1983,10 @@
     // Make sure we don't continue to scan sources until we finish flushing.
     ++mScanSourcesGeneration;
     if (mScanSourcesPending) {
-        mDeferredActions.push_back(
-                new SimpleAction(&NuPlayer::performScanSources));
+        if (!needShutdown) {
+            mDeferredActions.push_back(
+                    new SimpleAction(&NuPlayer::performScanSources));
+        }
         mScanSourcesPending = false;
     }
 
@@ -1977,10 +2160,9 @@
     }
 }
 
-void NuPlayer::performSeek(int64_t seekTimeUs) {
-    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
-          (long long)seekTimeUs,
-          seekTimeUs / 1E6);
+void NuPlayer::performSeek(int64_t seekTimeUs, MediaPlayerSeekMode mode) {
+    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs), mode=%d",
+          (long long)seekTimeUs, seekTimeUs / 1E6, mode);
 
     if (mSource == NULL) {
         // This happens when reset occurs right before the loop mode
@@ -1991,7 +2173,7 @@
         return;
     }
     mPreviousSeekTimeUs = seekTimeUs;
-    mSource->seekTo(seekTimeUs);
+    mSource->seekTo(seekTimeUs, mode);
     ++mTimedTextGeneration;
 
     // everything's flushed, continue playback.
@@ -2053,6 +2235,16 @@
     mPrepared = false;
     mResetting = false;
     mSourceStarted = false;
+
+    // Modular DRM
+    if (mCrypto != NULL) {
+        // decoders will be flushed before this so their mCrypto would go away on their own
+        // TODO change to ALOGV
+        ALOGD("performReset mCrypto: %p (%d)", mCrypto.get(),
+                (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+        mCrypto.clear();
+    }
+    mIsDrmProtected = false;
 }
 
 void NuPlayer::performScanSources() {
@@ -2147,6 +2339,7 @@
 
         case Source::kWhatPrepared:
         {
+            ALOGV("NuPlayer::onSourceNotify Source::kWhatPrepared source: %p", mSource.get());
             if (mSource == NULL) {
                 // This is a stale notification from a source that was
                 // asynchronously preparing when the client called reset().
@@ -2181,6 +2374,22 @@
             break;
         }
 
+        // Modular DRM
+        case Source::kWhatDrmInfo:
+        {
+            Parcel parcel;
+            sp<ABuffer> drmInfo;
+            CHECK(msg->findBuffer("drmInfo", &drmInfo));
+            parcel.setData(drmInfo->data(), drmInfo->size());
+
+            ALOGV("onSourceNotify() kWhatDrmInfo MEDIA_DRM_INFO drmInfo: %p  parcel size: %zu",
+                    drmInfo.get(), parcel.dataSize());
+
+            notifyListener(MEDIA_DRM_INFO, 0 /* ext1 */, 0 /* ext2 */, &parcel);
+
+            break;
+        }
+
         case Source::kWhatFlagsChanged:
         {
             uint32_t flags;
@@ -2188,6 +2397,19 @@
 
             sp<NuPlayerDriver> driver = mDriver.promote();
             if (driver != NULL) {
+
+                ALOGV("onSourceNotify() kWhatFlagsChanged  FLAG_CAN_PAUSE: %d  "
+                        "FLAG_CAN_SEEK_BACKWARD: %d \n\t\t\t\t FLAG_CAN_SEEK_FORWARD: %d  "
+                        "FLAG_CAN_SEEK: %d  FLAG_DYNAMIC_DURATION: %d \n"
+                        "\t\t\t\t FLAG_SECURE: %d  FLAG_PROTECTED: %d",
+                        (flags & Source::FLAG_CAN_PAUSE) != 0,
+                        (flags & Source::FLAG_CAN_SEEK_BACKWARD) != 0,
+                        (flags & Source::FLAG_CAN_SEEK_FORWARD) != 0,
+                        (flags & Source::FLAG_CAN_SEEK) != 0,
+                        (flags & Source::FLAG_DYNAMIC_DURATION) != 0,
+                        (flags & Source::FLAG_SECURE) != 0,
+                        (flags & Source::FLAG_PROTECTED) != 0);
+
                 if ((flags & NuPlayer::Source::FLAG_CAN_SEEK) == 0) {
                     driver->notifyListener(
                             MEDIA_INFO, MEDIA_INFO_NOT_SEEKABLE, 0);
@@ -2438,6 +2660,167 @@
         notifyListener(MEDIA_TIMED_TEXT, 0, 0);
     }
 }
+
+const char *NuPlayer::getDataSourceType() {
+    switch (mDataSourceType) {
+        case DATA_SOURCE_TYPE_HTTP_LIVE:
+            return "HTTPLive";
+
+        case DATA_SOURCE_TYPE_RTSP:
+            return "RTSP";
+
+        case DATA_SOURCE_TYPE_GENERIC_URL:
+            return "GenURL";
+
+        case DATA_SOURCE_TYPE_GENERIC_FD:
+            return "GenFD";
+
+        case DATA_SOURCE_TYPE_MEDIA:
+            return "Media";
+
+        case DATA_SOURCE_TYPE_STREAM:
+            return "Stream";
+
+        case DATA_SOURCE_TYPE_NONE:
+        default:
+            return "None";
+    }
+ }
+
+// Modular DRM begin
+status_t NuPlayer::prepareDrm(const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId)
+{
+    ALOGV("prepareDrm ");
+
+    // Passing to the looper anyway; called in a pre-config prepared state so no race on mCrypto
+    sp<AMessage> msg = new AMessage(kWhatPrepareDrm, this);
+    // synchronous call so just passing the address but with local copies of "const" args
+    uint8_t UUID[16];
+    memcpy(UUID, uuid, sizeof(UUID));
+    Vector<uint8_t> sessionId = drmSessionId;
+    msg->setPointer("uuid", (void*)UUID);
+    msg->setPointer("drmSessionId", (void*)&sessionId);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV("prepareDrm ret: %d ", status);
+    } else {
+        ALOGE("prepareDrm err: %d", status);
+    }
+
+    return status;
+}
+
+status_t NuPlayer::releaseDrm()
+{
+    ALOGV("releaseDrm ");
+
+    sp<AMessage> msg = new AMessage(kWhatReleaseDrm, this);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV("releaseDrm ret: %d ", status);
+    } else {
+        ALOGE("releaseDrm err: %d", status);
+    }
+
+    return status;
+}
+
+status_t NuPlayer::onPrepareDrm(const sp<AMessage> &msg)
+{
+    // TODO change to ALOGV
+    ALOGD("onPrepareDrm ");
+
+    status_t status = INVALID_OPERATION;
+    if (mSource == NULL) {
+        ALOGE("onPrepareDrm: No source. onPrepareDrm failed with %d.", status);
+        return status;
+    }
+
+    uint8_t *uuid;
+    Vector<uint8_t> *drmSessionId;
+    CHECK(msg->findPointer("uuid", (void**)&uuid));
+    CHECK(msg->findPointer("drmSessionId", (void**)&drmSessionId));
+
+    status = OK;
+    sp<ICrypto> crypto = NULL;
+
+    status = mSource->prepareDrm(uuid, *drmSessionId, &crypto);
+    if (crypto == NULL) {
+        ALOGE("onPrepareDrm: mSource->prepareDrm failed. status: %d", status);
+        return status;
+    }
+    ALOGV("onPrepareDrm: mSource->prepareDrm succeeded");
+
+    if (mCrypto != NULL) {
+        ALOGE("onPrepareDrm: Unexpected. Already having mCrypto: %p (%d)",
+                mCrypto.get(), mCrypto->getStrongCount());
+        mCrypto.clear();
+    }
+
+    mCrypto = crypto;
+    mIsDrmProtected = true;
+    // TODO change to ALOGV
+    ALOGD("onPrepareDrm: mCrypto: %p (%d)", mCrypto.get(),
+            (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+
+    return status;
+}
+
+status_t NuPlayer::onReleaseDrm()
+{
+    // TODO change to ALOGV
+    ALOGD("onReleaseDrm ");
+
+    if (!mIsDrmProtected) {
+        ALOGW("onReleaseDrm: Unexpected. mIsDrmProtected is already false.");
+    }
+
+    mIsDrmProtected = false;
+
+    status_t status;
+    if (mCrypto != NULL) {
+        // notifying the source first before removing crypto from codec
+        if (mSource != NULL) {
+            mSource->releaseDrm();
+        }
+
+        status=OK;
+        // first making sure the codecs have released their crypto reference
+        const sp<DecoderBase> &videoDecoder = getDecoder(false/*audio*/);
+        if (videoDecoder != NULL) {
+            status = videoDecoder->releaseCrypto();
+            ALOGV("onReleaseDrm: video decoder ret: %d", status);
+        }
+
+        const sp<DecoderBase> &audioDecoder = getDecoder(true/*audio*/);
+        if (audioDecoder != NULL) {
+            status_t status_audio = audioDecoder->releaseCrypto();
+            if (status == OK) {   // otherwise, returning the first error
+                status = status_audio;
+            }
+            ALOGV("onReleaseDrm: audio decoder ret: %d", status_audio);
+        }
+
+        // TODO change to ALOGV
+        ALOGD("onReleaseDrm: mCrypto: %p (%d)", mCrypto.get(),
+                (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+        mCrypto.clear();
+    } else {   // mCrypto == NULL
+        ALOGE("onReleaseDrm: Unexpected. There is no crypto.");
+        status = INVALID_OPERATION;
+    }
+
+    return status;
+}
+// Modular DRM end
 ////////////////////////////////////////////////////////////////////////////////
 
 sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
@@ -2470,12 +2853,24 @@
 }
 
 void NuPlayer::Source::notifyPrepared(status_t err) {
+    ALOGV("Source::notifyPrepared %d", err);
     sp<AMessage> notify = dupNotify();
     notify->setInt32("what", kWhatPrepared);
     notify->setInt32("err", err);
     notify->post();
 }
 
+void NuPlayer::Source::notifyDrmInfo(const sp<ABuffer> &drmInfoBuffer)
+{
+    ALOGV("Source::notifyDrmInfo");
+
+    sp<AMessage> notify = dupNotify();
+    notify->setInt32("what", kWhatDrmInfo);
+    notify->setBuffer("drmInfo", drmInfoBuffer);
+
+    notify->post();
+}
+
 void NuPlayer::Source::notifyInstantiateSecureDecoders(const sp<AMessage> &reply) {
     sp<AMessage> notify = dupNotify();
     notify->setInt32("what", kWhatInstantiateSecureDecoders);
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.h b/media/libmediaplayerservice/nuplayer/NuPlayer.h
index ae17c76..c69835f 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.h
@@ -19,6 +19,7 @@
 #define NU_PLAYER_H_
 
 #include <media/AudioResamplerPublic.h>
+#include <media/ICrypto.h>
 #include <media/MediaPlayerInterface.h>
 #include <media/stagefright/foundation/AHandler.h>
 
@@ -33,7 +34,7 @@
 struct NuPlayerDriver;
 
 struct NuPlayer : public AHandler {
-    NuPlayer(pid_t pid);
+    explicit NuPlayer(pid_t pid);
 
     void setUID(uid_t uid);
 
@@ -50,6 +51,9 @@
 
     void setDataSourceAsync(const sp<DataSource> &source);
 
+    status_t getDefaultBufferingSettings(BufferingSettings* buffering /* nonnull */);
+    status_t setBufferingSettings(const BufferingSettings& buffering);
+
     void prepareAsync();
 
     void setVideoSurfaceTextureAsync(
@@ -70,7 +74,10 @@
 
     // Will notify the driver through "notifySeekComplete" once finished
     // and needNotify is true.
-    void seekToAsync(int64_t seekTimeUs, bool needNotify = false);
+    void seekToAsync(
+            int64_t seekTimeUs,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC,
+            bool needNotify = false);
 
     status_t setVideoScalingMode(int32_t mode);
     status_t getTrackInfo(Parcel* reply) const;
@@ -82,6 +89,12 @@
     sp<MetaData> getFileMeta();
     float getFrameRate();
 
+    // Modular DRM
+    status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId);
+    status_t releaseDrm();
+
+    const char *getDataSourceType();
+
 protected:
     virtual ~NuPlayer();
 
@@ -134,6 +147,10 @@
         kWhatGetTrackInfo               = 'gTrI',
         kWhatGetSelectedTrack           = 'gSel',
         kWhatSelectTrack                = 'selT',
+        kWhatGetDefaultBufferingSettings = 'gDBS',
+        kWhatSetBufferingSettings       = 'sBuS',
+        kWhatPrepareDrm                 = 'pDrm',
+        kWhatReleaseDrm                 = 'rDrm',
     };
 
     wp<NuPlayerDriver> mDriver;
@@ -155,6 +172,8 @@
     int32_t mVideoDecoderGeneration;
     int32_t mRendererGeneration;
 
+    int64_t mLastStartedPlayingTimeNs;
+
     int64_t mPreviousSeekTimeUs;
 
     List<sp<Action> > mDeferredActions;
@@ -201,6 +220,8 @@
     bool mPrepared;
     bool mResetting;
     bool mSourceStarted;
+    bool mAudioDecoderError;
+    bool mVideoDecoderError;
 
     // Actual pause state, either as requested by client or due to buffering.
     bool mPaused;
@@ -213,6 +234,22 @@
     // Pause state as requested by source (internally) due to buffering
     bool mPausedForBuffering;
 
+    // Modular DRM
+    sp<ICrypto> mCrypto;
+    bool mIsDrmProtected;
+
+    typedef enum {
+        DATA_SOURCE_TYPE_NONE,
+        DATA_SOURCE_TYPE_HTTP_LIVE,
+        DATA_SOURCE_TYPE_RTSP,
+        DATA_SOURCE_TYPE_GENERIC_URL,
+        DATA_SOURCE_TYPE_GENERIC_FD,
+        DATA_SOURCE_TYPE_MEDIA,
+        DATA_SOURCE_TYPE_STREAM,
+    } DATA_SOURCE_TYPE;
+
+    std::atomic<DATA_SOURCE_TYPE> mDataSourceType;
+
     inline const sp<DecoderBase> &getDecoder(bool audio) {
         return audio ? mAudioDecoder : mVideoDecoder;
     }
@@ -245,7 +282,9 @@
     void handleFlushComplete(bool audio, bool isDecoder);
     void finishFlushIfPossible();
 
-    void onStart(int64_t startPositionUs = -1);
+    void onStart(
+            int64_t startPositionUs = -1,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC);
     void onResume();
     void onPause();
 
@@ -263,7 +302,7 @@
 
     void processDeferredActions();
 
-    void performSeek(int64_t seekTimeUs);
+    void performSeek(int64_t seekTimeUs, MediaPlayerSeekMode mode);
     void performDecoderFlush(FlushCommand audio, FlushCommand video);
     void performReset();
     void performScanSources();
@@ -280,7 +319,10 @@
     void sendTimedMetaData(const sp<ABuffer> &buffer);
     void sendTimedTextData(const sp<ABuffer> &buffer);
 
-    void writeTrackInfo(Parcel* reply, const sp<AMessage> format) const;
+    void writeTrackInfo(Parcel* reply, const sp<AMessage>& format) const;
+
+    status_t onPrepareDrm(const sp<AMessage> &msg);
+    status_t onReleaseDrm();
 
     DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
 };
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.cpp
index 13716cf..73b07bb 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.cpp
@@ -72,37 +72,37 @@
 
         if (cc->mData1 >= 0x20 && cc->mData1 <= 0x7f) {
             // 2 basic chars
-            sprintf(tmp, "[%d]Basic: %c %c", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Basic: %c %c", cc->mType, cc->mData1, cc->mData2);
         } else if ((cc->mData1 == 0x11 || cc->mData1 == 0x19)
                  && cc->mData2 >= 0x30 && cc->mData2 <= 0x3f) {
             // 1 special char
-            sprintf(tmp, "[%d]Special: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Special: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else if ((cc->mData1 == 0x12 || cc->mData1 == 0x1A)
                  && cc->mData2 >= 0x20 && cc->mData2 <= 0x3f){
             // 1 Spanish/French char
-            sprintf(tmp, "[%d]Spanish: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Spanish: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else if ((cc->mData1 == 0x13 || cc->mData1 == 0x1B)
                  && cc->mData2 >= 0x20 && cc->mData2 <= 0x3f){
             // 1 Portuguese/German/Danish char
-            sprintf(tmp, "[%d]German: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]German: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else if ((cc->mData1 == 0x11 || cc->mData1 == 0x19)
                  && cc->mData2 >= 0x20 && cc->mData2 <= 0x2f){
             // Mid-Row Codes (Table 69)
-            sprintf(tmp, "[%d]Mid-row: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Mid-row: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else if (((cc->mData1 == 0x14 || cc->mData1 == 0x1c)
                   && cc->mData2 >= 0x20 && cc->mData2 <= 0x2f)
                   ||
                    ((cc->mData1 == 0x17 || cc->mData1 == 0x1f)
                   && cc->mData2 >= 0x21 && cc->mData2 <= 0x23)){
             // Misc Control Codes (Table 70)
-            sprintf(tmp, "[%d]Ctrl: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Ctrl: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else if ((cc->mData1 & 0x70) == 0x10
                 && (cc->mData2 & 0x40) == 0x40
                 && ((cc->mData1 & 0x07) || !(cc->mData2 & 0x20)) ) {
             // Preamble Address Codes (Table 71)
-            sprintf(tmp, "[%d]PAC: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]PAC: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else {
-            sprintf(tmp, "[%d]Invalid: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Invalid: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         }
 
         if (out.size() > 0) {
@@ -256,6 +256,12 @@
             payload_size += last_byte;
         } while (last_byte == 0xFF);
 
+        if (payload_size > SIZE_MAX / 8
+                || !br.atLeastNumBitsLeft(payload_size * 8)) {
+            ALOGV("Malformed SEI payload");
+            break;
+        }
+
         // sei_payload()
         if (payload_type == 4) {
             bool isCC = false;
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.h b/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.h
index a297334..f310f37 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.h
@@ -33,7 +33,7 @@
         kTrackTypeCEA708,
     };
 
-    CCDecoder(const sp<AMessage> &notify);
+    explicit CCDecoder(const sp<AMessage> &notify);
 
     size_t getTrackCount() const;
     sp<AMessage> getTrackInfo(size_t index) const;
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
index caaa735..8fe255b 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
@@ -23,11 +23,13 @@
 
 #include "NuPlayerCCDecoder.h"
 #include "NuPlayerDecoder.h"
+#include "NuPlayerDrm.h"
 #include "NuPlayerRenderer.h"
 #include "NuPlayerSource.h"
 
 #include <cutils/properties.h>
 #include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -35,7 +37,7 @@
 #include <media/stagefright/MediaCodec.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
-
+#include <media/stagefright/SurfaceUtils.h>
 #include <gui/Surface.h>
 
 #include "avc_utils.h"
@@ -57,6 +59,7 @@
         const sp<AMessage> &notify,
         const sp<Source> &source,
         pid_t pid,
+        uid_t uid,
         const sp<Renderer> &renderer,
         const sp<Surface> &surface,
         const sp<CCDecoder> &ccDecoder)
@@ -66,6 +69,7 @@
       mRenderer(renderer),
       mCCDecoder(ccDecoder),
       mPid(pid),
+      mUid(uid),
       mSkipRenderingUntilMediaTimeUs(-1ll),
       mNumFramesTotal(0ll),
       mNumInputFramesDropped(0ll),
@@ -75,6 +79,8 @@
       mIsAudio(true),
       mIsVideoAVC(false),
       mIsSecure(false),
+      mIsEncrypted(false),
+      mIsEncryptedObservedEarlier(false),
       mFormatChangePending(false),
       mTimeChangePending(false),
       mFrameRateTotal(kDefaultVideoFrameRateTotal),
@@ -91,7 +97,11 @@
 }
 
 NuPlayer::Decoder::~Decoder() {
-    mCodec->release();
+    // Need to stop looper first since mCodec could be accessed on the mDecoderLooper.
+    stopLooper();
+    if (mCodec != NULL) {
+        mCodec->release();
+    }
     releaseAndResetMediaBuffers();
 }
 
@@ -200,6 +210,18 @@
             break;
         }
 
+        case kWhatAudioOutputFormatChanged:
+        {
+            if (!isStaleReply(msg)) {
+                status_t err;
+                if (msg->findInt32("err", &err) && err != OK) {
+                    ALOGE("Renderer reported 0x%x when changing audio output format", err);
+                    handleError(err);
+                }
+            }
+            break;
+        }
+
         case kWhatSetVideoSurface:
         {
             sp<AReplyToken> replyID;
@@ -216,21 +238,21 @@
                 //
                 // at this point MediaPlayerService::client has already connected to the
                 // surface, which MediaCodec does not expect
-                err = native_window_api_disconnect(surface.get(), NATIVE_WINDOW_API_MEDIA);
+                err = nativeWindowDisconnect(surface.get(), "kWhatSetVideoSurface(surface)");
                 if (err == OK) {
                     err = mCodec->setSurface(surface);
                     ALOGI_IF(err, "codec setSurface returned: %d", err);
                     if (err == OK) {
                         // reconnect to the old surface as MPS::Client will expect to
                         // be able to disconnect from it.
-                        (void)native_window_api_connect(mSurface.get(), NATIVE_WINDOW_API_MEDIA);
+                        (void)nativeWindowConnect(mSurface.get(), "kWhatSetVideoSurface(mSurface)");
                         mSurface = surface;
                     }
                 }
                 if (err != OK) {
                     // reconnect to the new surface on error as MPS::Client will expect to
                     // be able to disconnect from it.
-                    (void)native_window_api_connect(surface.get(), NATIVE_WINDOW_API_MEDIA);
+                    (void)nativeWindowConnect(surface.get(), "kWhatSetVideoSurface(err)");
                 }
             }
 
@@ -240,6 +262,13 @@
             break;
         }
 
+        case kWhatDrmReleaseCrypto:
+        {
+            ALOGV("kWhatDrmReleaseCrypto");
+            onReleaseCrypto(msg);
+            break;
+        }
+
         default:
             DecoderBase::onMessageReceived(msg);
             break;
@@ -265,7 +294,7 @@
     ALOGV("[%s] onConfigure (surface=%p)", mComponentName.c_str(), mSurface.get());
 
     mCodec = MediaCodec::CreateByType(
-            mCodecLooper, mime.c_str(), false /* encoder */, NULL /* err */, mPid);
+            mCodecLooper, mime.c_str(), false /* encoder */, NULL /* err */, mPid, mUid);
     int32_t secure = 0;
     if (format->findInt32("secure", &secure) && secure != 0) {
         if (mCodec != NULL) {
@@ -274,7 +303,7 @@
             mCodec->release();
             ALOGI("[%s] creating", mComponentName.c_str());
             mCodec = MediaCodec::CreateByComponentName(
-                    mCodecLooper, mComponentName.c_str(), NULL /* err */, mPid);
+                    mCodecLooper, mComponentName.c_str(), NULL /* err */, mPid, mUid);
         }
     }
     if (mCodec == NULL) {
@@ -290,15 +319,29 @@
     status_t err;
     if (mSurface != NULL) {
         // disconnect from surface as MediaCodec will reconnect
-        err = native_window_api_disconnect(
-                mSurface.get(), NATIVE_WINDOW_API_MEDIA);
+        err = nativeWindowDisconnect(mSurface.get(), "onConfigure");
         // We treat this as a warning, as this is a preparatory step.
         // Codec will try to connect to the surface, which is where
         // any error signaling will occur.
         ALOGW_IF(err != OK, "failed to disconnect from surface: %d", err);
     }
+
+    // Modular DRM
+    void *pCrypto;
+    if (!format->findPointer("crypto", &pCrypto)) {
+        pCrypto = NULL;
+    }
+    sp<ICrypto> crypto = (ICrypto*)pCrypto;
+    // non-encrypted source won't have a crypto
+    mIsEncrypted = (crypto != NULL);
+    // configure is called once; still using OR in case the behavior changes.
+    mIsEncryptedObservedEarlier = mIsEncryptedObservedEarlier || mIsEncrypted;
+    ALOGV("onConfigure mCrypto: %p (%d)  mIsSecure: %d",
+            crypto.get(), (crypto != NULL ? crypto->getStrongCount() : 0), mIsSecure);
+
     err = mCodec->configure(
-            format, mSurface, NULL /* crypto */, 0 /* flags */);
+            format, mSurface, crypto, 0 /* flags */);
+
     if (err != OK) {
         ALOGE("Failed to configure %s decoder (err=%d)", mComponentName.c_str(), err);
         mCodec->release();
@@ -408,17 +451,7 @@
 }
 
 void NuPlayer::Decoder::onSetRenderer(const sp<Renderer> &renderer) {
-    bool hadNoRenderer = (mRenderer == NULL);
     mRenderer = renderer;
-    if (hadNoRenderer && mRenderer != NULL) {
-        // this means that the widevine legacy source is ready
-        onRequestInputBuffers();
-    }
-}
-
-void NuPlayer::Decoder::onGetInputBuffers(
-        Vector<sp<ABuffer> > *dstBuffers) {
-    CHECK_EQ((status_t)OK, mCodec->getWidevineLegacyBuffers(dstBuffers));
 }
 
 void NuPlayer::Decoder::onResume(bool notifyComplete) {
@@ -486,8 +519,7 @@
 
         if (mSurface != NULL) {
             // reconnect to surface as MediaCodec disconnected from it
-            status_t error =
-                    native_window_api_connect(mSurface.get(), NATIVE_WINDOW_API_MEDIA);
+            status_t error = nativeWindowConnect(mSurface.get(), "onShutdown");
             ALOGW_IF(error != NO_ERROR,
                     "[%s] failed to connect to native window, error=%d",
                     mComponentName.c_str(), error);
@@ -515,9 +547,7 @@
  * returns true if we should request more data
  */
 bool NuPlayer::Decoder::doRequestBuffers() {
-    // mRenderer is only NULL if we have a legacy widevine source that
-    // is not yet ready. In this case we must not fetch input.
-    if (isDiscontinuityPending() || mRenderer == NULL) {
+    if (isDiscontinuityPending()) {
         return false;
     }
     status_t err = OK;
@@ -556,12 +586,52 @@
     notify->post();
 }
 
+status_t NuPlayer::Decoder::releaseCrypto()
+{
+    ALOGV("releaseCrypto");
+
+    sp<AMessage> msg = new AMessage(kWhatDrmReleaseCrypto, this);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV("releaseCrypto ret: %d ", status);
+    } else {
+        ALOGE("releaseCrypto err: %d", status);
+    }
+
+    return status;
+}
+
+void NuPlayer::Decoder::onReleaseCrypto(const sp<AMessage>& msg)
+{
+    status_t status = INVALID_OPERATION;
+    if (mCodec != NULL) {
+        status = mCodec->releaseCrypto();
+    } else {
+        // returning OK if the codec has been already released
+        status = OK;
+        ALOGE("onReleaseCrypto No mCodec. err: %d", status);
+    }
+
+    sp<AMessage> response = new AMessage;
+    response->setInt32("status", status);
+    // Clearing the state as it's tied to crypto. mIsEncryptedObservedEarlier is sticky though
+    // and lasts for the lifetime of this codec. See its use in fetchInputData.
+    mIsEncrypted = false;
+
+    sp<AReplyToken> replyID;
+    CHECK(msg->senderAwaitsResponse(&replyID));
+    response->postReply(replyID);
+}
+
 bool NuPlayer::Decoder::handleAnInputBuffer(size_t index) {
     if (isDiscontinuityPending()) {
         return false;
     }
 
-    sp<ABuffer> buffer;
+    sp<MediaCodecBuffer> buffer;
     mCodec->getInputBuffer(index, &buffer);
 
     if (buffer == NULL) {
@@ -628,7 +698,7 @@
         int64_t timeUs,
         int32_t flags) {
 //    CHECK_LT(bufferIx, mOutputBuffers.size());
-    sp<ABuffer> buffer;
+    sp<MediaCodecBuffer> buffer;
     mCodec->getOutputBuffer(index, &buffer);
 
     if (buffer == NULL) {
@@ -705,19 +775,18 @@
         int64_t durationUs;
         bool hasVideo = (mSource->getFormat(false /* audio */) != NULL);
         if (getAudioDeepBufferSetting() // override regardless of source duration
-                || (!hasVideo
-                        && mSource->getDuration(&durationUs) == OK
+                || (mSource->getDuration(&durationUs) == OK
                         && durationUs > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US)) {
             flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
         } else {
             flags = AUDIO_OUTPUT_FLAG_NONE;
         }
 
-        status_t err = mRenderer->openAudioSink(
-                format, false /* offloadOnly */, hasVideo, flags, NULL /* isOffloaed */);
-        if (err != OK) {
-            handleError(err);
-        }
+        sp<AMessage> reply = new AMessage(kWhatAudioOutputFormatChanged, this);
+        reply->setInt32("generation", mBufferGeneration);
+        mRenderer->changeAudioFormat(
+                format, false /* offloadOnly */, hasVideo,
+                flags, mSource->isStreaming(), reply);
     }
 }
 
@@ -818,7 +887,20 @@
         }
 
         dropAccessUnit = false;
-        if (!mIsAudio && !mIsSecure) {
+        if (!mIsAudio && !mIsEncrypted) {
+            // Extra safeguard if higher-level behavior changes. Otherwise, not required now.
+            // Preventing the buffer from being processed (and sent to codec) if this is a later
+            // round of playback but this time without prepareDrm. Or if there is a race between
+            // stop (which is not blocking) and releaseDrm allowing buffers being processed after
+            // Crypto has been released (GenericSource currently prevents this race though).
+            // Particularly doing this check before IsAVCReferenceFrame call to prevent parsing
+            // of encrypted data.
+            if (mIsEncryptedObservedEarlier) {
+                ALOGE("fetchInputData: mismatched mIsEncrypted/mIsEncryptedObservedEarlier (0/1)");
+
+                return INVALID_OPERATION;
+            }
+
             int32_t layerId = 0;
             bool haveLayerId = accessUnit->meta()->findInt32("temporal-layer-id", &layerId);
             if (mRenderer->getVideoLateByUs() > 100000ll
@@ -870,43 +952,11 @@
     size_t bufferIx;
     CHECK(msg->findSize("buffer-ix", &bufferIx));
     CHECK_LT(bufferIx, mInputBuffers.size());
-    sp<ABuffer> codecBuffer = mInputBuffers[bufferIx];
+    sp<MediaCodecBuffer> codecBuffer = mInputBuffers[bufferIx];
 
     sp<ABuffer> buffer;
     bool hasBuffer = msg->findBuffer("buffer", &buffer);
-
-    // handle widevine classic source - that fills an arbitrary input buffer
-    MediaBuffer *mediaBuffer = NULL;
-    if (hasBuffer) {
-        mediaBuffer = (MediaBuffer *)(buffer->getMediaBufferBase());
-        if (mediaBuffer != NULL) {
-            // likely filled another buffer than we requested: adjust buffer index
-            size_t ix;
-            for (ix = 0; ix < mInputBuffers.size(); ix++) {
-                const sp<ABuffer> &buf = mInputBuffers[ix];
-                if (buf->data() == mediaBuffer->data()) {
-                    // all input buffers are dequeued on start, hence the check
-                    if (!mInputBufferIsDequeued[ix]) {
-                        ALOGV("[%s] received MediaBuffer for #%zu instead of #%zu",
-                                mComponentName.c_str(), ix, bufferIx);
-                        mediaBuffer->release();
-                        return false;
-                    }
-
-                    // TRICKY: need buffer for the metadata, so instead, set
-                    // codecBuffer to the same (though incorrect) buffer to
-                    // avoid a memcpy into the codecBuffer
-                    codecBuffer = buffer;
-                    codecBuffer->setRange(
-                            mediaBuffer->range_offset(),
-                            mediaBuffer->range_length());
-                    bufferIx = ix;
-                    break;
-                }
-            }
-            CHECK(ix < mInputBuffers.size());
-        }
-    }
+    bool needsCopy = true;
 
     if (buffer == NULL /* includes !hasBuffer */) {
         int32_t streamErr = ERROR_END_OF_STREAM;
@@ -959,38 +1009,79 @@
             flags |= MediaCodec::BUFFER_FLAG_CODECCONFIG;
         }
 
+        // Modular DRM
+        MediaBuffer *mediaBuf = NULL;
+        NuPlayerDrm::CryptoInfo *cryptInfo = NULL;
+
         // copy into codec buffer
-        if (buffer != codecBuffer) {
+        if (needsCopy) {
             if (buffer->size() > codecBuffer->capacity()) {
                 handleError(ERROR_BUFFER_TOO_SMALL);
                 mDequeuedInputBuffers.push_back(bufferIx);
                 return false;
             }
-            codecBuffer->setRange(0, buffer->size());
-            memcpy(codecBuffer->data(), buffer->data(), buffer->size());
-        }
 
-        status_t err = mCodec->queueInputBuffer(
-                        bufferIx,
-                        codecBuffer->offset(),
-                        codecBuffer->size(),
-                        timeUs,
-                        flags);
+            if (buffer->data() != NULL) {
+                codecBuffer->setRange(0, buffer->size());
+                memcpy(codecBuffer->data(), buffer->data(), buffer->size());
+            } else { // No buffer->data()
+                //Modular DRM
+                mediaBuf = (MediaBuffer*)buffer->getMediaBufferBase();
+                if (mediaBuf != NULL) {
+                    codecBuffer->setRange(0, mediaBuf->size());
+                    memcpy(codecBuffer->data(), mediaBuf->data(), mediaBuf->size());
+
+                    sp<MetaData> meta_data = mediaBuf->meta_data();
+                    cryptInfo = NuPlayerDrm::getSampleCryptoInfo(meta_data);
+
+                    // since getMediaBuffer() has incremented the refCount
+                    mediaBuf->release();
+                } else { // No mediaBuf
+                    ALOGE("onInputBufferFetched: buffer->data()/mediaBuf are NULL for %p",
+                            buffer.get());
+                    handleError(UNKNOWN_ERROR);
+                    return false;
+                }
+            } // buffer->data()
+        } // needsCopy
+
+        status_t err;
+        AString errorDetailMsg;
+        if (cryptInfo != NULL) {
+            err = mCodec->queueSecureInputBuffer(
+                    bufferIx,
+                    codecBuffer->offset(),
+                    cryptInfo->subSamples,
+                    cryptInfo->numSubSamples,
+                    cryptInfo->key,
+                    cryptInfo->iv,
+                    cryptInfo->mode,
+                    cryptInfo->pattern,
+                    timeUs,
+                    flags,
+                    &errorDetailMsg);
+            // synchronous call so done with cryptInfo here
+            free(cryptInfo);
+        } else {
+            err = mCodec->queueInputBuffer(
+                    bufferIx,
+                    codecBuffer->offset(),
+                    codecBuffer->size(),
+                    timeUs,
+                    flags,
+                    &errorDetailMsg);
+        } // no cryptInfo
+
         if (err != OK) {
-            if (mediaBuffer != NULL) {
-                mediaBuffer->release();
-            }
-            ALOGE("Failed to queue input buffer for %s (err=%d)",
-                    mComponentName.c_str(), err);
+            ALOGE("onInputBufferFetched: queue%sInputBuffer failed for %s (err=%d, %s)",
+                    (cryptInfo != NULL ? "Secure" : ""),
+                    mComponentName.c_str(), err, errorDetailMsg.c_str());
             handleError(err);
         } else {
             mInputBufferIsDequeued.editItemAt(bufferIx) = false;
-            if (mediaBuffer != NULL) {
-                CHECK(mMediaBuffers[bufferIx] == NULL);
-                mMediaBuffers.editItemAt(bufferIx) = mediaBuffer;
-            }
         }
-    }
+
+    }   // buffer != NULL
     return true;
 }
 
@@ -1003,7 +1094,7 @@
 
     if (!mIsAudio) {
         int64_t timeUs;
-        sp<ABuffer> buffer = mOutputBuffers[bufferIx];
+        sp<MediaCodecBuffer> buffer = mOutputBuffers[bufferIx];
         buffer->meta()->findInt64("timeUs", &timeUs);
 
         if (mCCDecoder != NULL && mCCDecoder->isSelected()) {
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h
index 0c619ed..3da2f0b 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h
@@ -23,10 +23,13 @@
 
 namespace android {
 
+class MediaCodecBuffer;
+
 struct NuPlayer::Decoder : public DecoderBase {
     Decoder(const sp<AMessage> &notify,
             const sp<Source> &source,
             pid_t pid,
+            uid_t uid,
             const sp<Renderer> &renderer = NULL,
             const sp<Surface> &surface = NULL,
             const sp<CCDecoder> &ccDecoder = NULL);
@@ -36,6 +39,8 @@
     // sets the output surface of video decoders.
     virtual status_t setVideoSurface(const sp<Surface> &surface);
 
+    virtual status_t releaseCrypto();
+
 protected:
     virtual ~Decoder();
 
@@ -44,7 +49,6 @@
     virtual void onConfigure(const sp<AMessage> &format);
     virtual void onSetParameters(const sp<AMessage> &params);
     virtual void onSetRenderer(const sp<Renderer> &renderer);
-    virtual void onGetInputBuffers(Vector<sp<ABuffer> > *dstBuffers);
     virtual void onResume(bool notifyComplete);
     virtual void onFlush();
     virtual void onShutdown(bool notifyComplete);
@@ -54,7 +58,9 @@
     enum {
         kWhatCodecNotify         = 'cdcN',
         kWhatRenderBuffer        = 'rndr',
-        kWhatSetVideoSurface     = 'sSur'
+        kWhatSetVideoSurface     = 'sSur',
+        kWhatAudioOutputFormatChanged = 'aofc',
+        kWhatDrmReleaseCrypto    = 'rDrm',
     };
 
     enum {
@@ -74,8 +80,8 @@
 
     List<sp<AMessage> > mPendingInputMessages;
 
-    Vector<sp<ABuffer> > mInputBuffers;
-    Vector<sp<ABuffer> > mOutputBuffers;
+    Vector<sp<MediaCodecBuffer> > mInputBuffers;
+    Vector<sp<MediaCodecBuffer> > mOutputBuffers;
     Vector<sp<ABuffer> > mCSDsForCurrentFormat;
     Vector<sp<ABuffer> > mCSDsToSubmit;
     Vector<bool> mInputBufferIsDequeued;
@@ -83,6 +89,7 @@
     Vector<size_t> mDequeuedInputBuffers;
 
     const pid_t mPid;
+    const uid_t mUid;
     int64_t mSkipRenderingUntilMediaTimeUs;
     int64_t mNumFramesTotal;
     int64_t mNumInputFramesDropped;
@@ -92,6 +99,8 @@
     bool mIsAudio;
     bool mIsVideoAVC;
     bool mIsSecure;
+    bool mIsEncrypted;
+    bool mIsEncryptedObservedEarlier;
     bool mFormatChangePending;
     bool mTimeChangePending;
     float mFrameRateTotal;
@@ -131,6 +140,8 @@
 
     void notifyResumeCompleteIfNecessary();
 
+    void onReleaseCrypto(const sp<AMessage>& msg);
+
     DISALLOW_EVIL_CONSTRUCTORS(Decoder);
 };
 
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp
index 04bb61c..d0de7b0 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp
@@ -23,6 +23,7 @@
 
 #include "NuPlayerRenderer.h"
 
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 
@@ -42,8 +43,7 @@
 }
 
 NuPlayer::DecoderBase::~DecoderBase() {
-    mDecoderLooper->unregisterHandler(id());
-    mDecoderLooper->stop();
+    stopLooper();
 }
 
 static
@@ -72,6 +72,11 @@
     mDecoderLooper->registerHandler(this);
 }
 
+void NuPlayer::DecoderBase::stopLooper() {
+    mDecoderLooper->unregisterHandler(id());
+    mDecoderLooper->stop();
+}
+
 void NuPlayer::DecoderBase::setParameters(const sp<AMessage> &params) {
     sp<AMessage> msg = new AMessage(kWhatSetParameters, this);
     msg->setMessage("params", params);
@@ -91,14 +96,6 @@
     PostAndAwaitResponse(msg, &response);
 }
 
-status_t NuPlayer::DecoderBase::getInputBuffers(Vector<sp<ABuffer> > *buffers) const {
-    sp<AMessage> msg = new AMessage(kWhatGetInputBuffers, this);
-    msg->setPointer("buffers", buffers);
-
-    sp<AMessage> response;
-    return PostAndAwaitResponse(msg, &response);
-}
-
 void NuPlayer::DecoderBase::signalFlush() {
     (new AMessage(kWhatFlush, this))->post();
 }
@@ -165,20 +162,6 @@
             break;
         }
 
-        case kWhatGetInputBuffers:
-        {
-            sp<AReplyToken> replyID;
-            CHECK(msg->senderAwaitsResponse(&replyID));
-
-            Vector<sp<ABuffer> > *dstBuffers;
-            CHECK(msg->findPointer("buffers", (void **)&dstBuffers));
-
-            onGetInputBuffers(dstBuffers);
-
-            (new AMessage)->postReply(replyID);
-            break;
-        }
-
         case kWhatRequestInputBuffers:
         {
             mRequestInputBuffersPending = false;
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.h b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.h
index a334ec5..d44c396 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.h
@@ -27,10 +27,11 @@
 struct ABuffer;
 struct MediaCodec;
 class MediaBuffer;
+class MediaCodecBuffer;
 class Surface;
 
 struct NuPlayer::DecoderBase : public AHandler {
-    DecoderBase(const sp<AMessage> &notify);
+    explicit DecoderBase(const sp<AMessage> &notify);
 
     void configure(const sp<AMessage> &format);
     void init();
@@ -42,7 +43,6 @@
     void setRenderer(const sp<Renderer> &renderer);
     virtual status_t setVideoSurface(const sp<Surface> &) { return INVALID_OPERATION; }
 
-    status_t getInputBuffers(Vector<sp<ABuffer> > *dstBuffers) const;
     void signalFlush();
     void signalResume(bool notifyComplete);
     void initiateShutdown();
@@ -51,6 +51,10 @@
         return mStats;
     }
 
+    virtual status_t releaseCrypto() {
+        return INVALID_OPERATION;
+    }
+
     enum {
         kWhatInputDiscontinuity  = 'inDi',
         kWhatVideoSizeChanged    = 'viSC',
@@ -65,12 +69,13 @@
 
     virtual ~DecoderBase();
 
+    void stopLooper();
+
     virtual void onMessageReceived(const sp<AMessage> &msg);
 
     virtual void onConfigure(const sp<AMessage> &format) = 0;
     virtual void onSetParameters(const sp<AMessage> &params) = 0;
     virtual void onSetRenderer(const sp<Renderer> &renderer) = 0;
-    virtual void onGetInputBuffers(Vector<sp<ABuffer> > *dstBuffers) = 0;
     virtual void onResume(bool notifyComplete) = 0;
     virtual void onFlush() = 0;
     virtual void onShutdown(bool notifyComplete) = 0;
@@ -90,7 +95,6 @@
         kWhatSetParameters       = 'setP',
         kWhatSetRenderer         = 'setR',
         kWhatPause               = 'paus',
-        kWhatGetInputBuffers     = 'gInB',
         kWhatRequestInputBuffers = 'reqB',
         kWhatFlush               = 'flus',
         kWhatShutdown            = 'shuD',
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.cpp
index f224635..6b05b53 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.cpp
@@ -25,6 +25,7 @@
 #include "NuPlayerSource.h"
 
 #include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -75,7 +76,7 @@
     // format is different.
     status_t err = mRenderer->openAudioSink(
             format, true /* offloadOnly */, hasVideo,
-            AUDIO_OUTPUT_FLAG_NONE /* flags */, NULL /* isOffloaded */);
+            AUDIO_OUTPUT_FLAG_NONE /* flags */, NULL /* isOffloaded */, mSource->isStreaming());
     if (err != OK) {
         handleError(err);
     }
@@ -92,11 +93,6 @@
             "ignoring request to change renderer");
 }
 
-void NuPlayer::DecoderPassThrough::onGetInputBuffers(
-        Vector<sp<ABuffer> > * /* dstBuffers */) {
-    ALOGE("onGetInputBuffers() called unexpectedly");
-}
-
 bool NuPlayer::DecoderPassThrough::isStaleReply(const sp<AMessage> &msg) {
     int32_t generation;
     CHECK(msg->findInt32("generation", &generation));
@@ -298,6 +294,9 @@
             return;
         }
 
+        if (streamErr != ERROR_END_OF_STREAM) {
+            handleError(streamErr);
+        }
         mReachedEOS = true;
         if (mRenderer != NULL) {
             mRenderer->queueEOS(true /* audio */, ERROR_END_OF_STREAM);
@@ -319,10 +318,9 @@
     int32_t bufferSize = buffer->size();
     mCachedBytes += bufferSize;
 
+    int64_t timeUs = 0;
+    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
     if (mSkipRenderingUntilMediaTimeUs >= 0) {
-        int64_t timeUs = 0;
-        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
-
         if (timeUs < mSkipRenderingUntilMediaTimeUs) {
             ALOGV("[%s] dropping buffer at time %lld as requested.",
                      mComponentName.c_str(), (long long)timeUs);
@@ -343,7 +341,10 @@
     reply->setInt32("generation", mBufferGeneration);
     reply->setInt32("size", bufferSize);
 
-    mRenderer->queueBuffer(true /* audio */, buffer, reply);
+    sp<MediaCodecBuffer> mcBuffer = new MediaCodecBuffer(nullptr, buffer);
+    mcBuffer->meta()->setInt64("timeUs", timeUs);
+
+    mRenderer->queueBuffer(true /* audio */, mcBuffer, reply);
 
     ++mPendingBuffersToDrain;
     ALOGV("onInputBufferFilled: #ToDrain = %zu, cachedBytes = %zu",
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h
index 5850efa..173387a 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h
@@ -38,7 +38,6 @@
     virtual void onConfigure(const sp<AMessage> &format);
     virtual void onSetParameters(const sp<AMessage> &params);
     virtual void onSetRenderer(const sp<Renderer> &renderer);
-    virtual void onGetInputBuffers(Vector<sp<ABuffer> > *dstBuffers);
     virtual void onResume(bool notifyComplete);
     virtual void onFlush();
     virtual void onShutdown(bool notifyComplete);
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
index 0f4dce9..ad788f7 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
@@ -31,8 +31,31 @@
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
 
+#include <media/IMediaAnalyticsService.h>
+
+static const int kDumpLockRetries = 50;
+static const int kDumpLockSleepUs = 20000;
+
 namespace android {
 
+// key for media statistics
+static const char *kKeyPlayer = "nuplayer";
+// attrs for media statistics
+static const char *kPlayerVMime = "android.media.mediaplayer.video.mime";
+static const char *kPlayerVCodec = "android.media.mediaplayer.video.codec";
+static const char *kPlayerWidth = "android.media.mediaplayer.width";
+static const char *kPlayerHeight = "android.media.mediaplayer.height";
+static const char *kPlayerFrames = "android.media.mediaplayer.frames";
+static const char *kPlayerFramesDropped = "android.media.mediaplayer.dropped";
+static const char *kPlayerAMime = "android.media.mediaplayer.audio.mime";
+static const char *kPlayerACodec = "android.media.mediaplayer.audio.codec";
+static const char *kPlayerDuration = "android.media.mediaplayer.durationMs";
+static const char *kPlayerPlaying = "android.media.mediaplayer.playingMs";
+static const char *kPlayerError = "android.media.mediaplayer.err";
+static const char *kPlayerErrorCode = "android.media.mediaplayer.errcode";
+static const char *kPlayerDataSourceType = "android.media.mediaplayer.dataSource";
+
+
 NuPlayerDriver::NuPlayerDriver(pid_t pid)
     : mState(STATE_IDLE),
       mIsAsyncPrepare(false),
@@ -41,20 +64,26 @@
       mDurationUs(-1),
       mPositionUs(-1),
       mSeekInProgress(false),
+      mPlayingTimeUs(0),
       mLooper(new ALooper),
+      mPlayer(new NuPlayer(pid)),
       mPlayerFlags(0),
+      mAnalyticsItem(NULL),
       mAtEOS(false),
       mLooping(false),
       mAutoLoop(false) {
-    ALOGV("NuPlayerDriver(%p)", this);
+    ALOGD("NuPlayerDriver(%p) created, clientPid(%d)", this, pid);
     mLooper->setName("NuPlayerDriver Looper");
 
+    // set up an analytics record
+    mAnalyticsItem = new MediaAnalyticsItem(kKeyPlayer);
+    mAnalyticsItem->generateSessionID();
+
     mLooper->start(
             false, /* runOnCallingThread */
             true,  /* canCallJava */
             PRIORITY_AUDIO);
 
-    mPlayer = new NuPlayer(pid);
     mLooper->registerHandler(mPlayer);
 
     mPlayer->setDriver(this);
@@ -63,6 +92,15 @@
 NuPlayerDriver::~NuPlayerDriver() {
     ALOGV("~NuPlayerDriver(%p)", this);
     mLooper->stop();
+
+    // finalize any pending metrics, usually a no-op.
+    updateMetrics("destructor");
+    logMetrics("destructor");
+
+    if (mAnalyticsItem != NULL) {
+        delete mAnalyticsItem;
+        mAnalyticsItem = NULL;
+    }
 }
 
 status_t NuPlayerDriver::initCheck() {
@@ -183,6 +221,30 @@
     return OK;
 }
 
+status_t NuPlayerDriver::getDefaultBufferingSettings(BufferingSettings* buffering) {
+    ALOGV("getDefaultBufferingSettings(%p)", this);
+    {
+        Mutex::Autolock autoLock(mLock);
+        if (mState == STATE_IDLE) {
+            return INVALID_OPERATION;
+        }
+    }
+
+    return mPlayer->getDefaultBufferingSettings(buffering);
+}
+
+status_t NuPlayerDriver::setBufferingSettings(const BufferingSettings& buffering) {
+    ALOGV("setBufferingSettings(%p)", this);
+    {
+        Mutex::Autolock autoLock(mLock);
+        if (mState == STATE_IDLE) {
+            return INVALID_OPERATION;
+        }
+    }
+
+    return mPlayer->setBufferingSettings(buffering);
+}
+
 status_t NuPlayerDriver::prepare() {
     ALOGV("prepare(%p)", this);
     Mutex::Autolock autoLock(mLock);
@@ -208,7 +270,8 @@
             mAtEOS = false;
             mState = STATE_STOPPED_AND_PREPARING;
             mIsAsyncPrepare = false;
-            mPlayer->seekToAsync(0, true /* needNotify */);
+            mPlayer->seekToAsync(0, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */,
+                    true /* needNotify */);
             while (mState == STATE_STOPPED_AND_PREPARING) {
                 mCondition.wait(mLock);
             }
@@ -233,7 +296,8 @@
             mAtEOS = false;
             mState = STATE_STOPPED_AND_PREPARING;
             mIsAsyncPrepare = true;
-            mPlayer->seekToAsync(0, true /* needNotify */);
+            mPlayer->seekToAsync(0, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */,
+                    true /* needNotify */);
             return OK;
         default:
             return INVALID_OPERATION;
@@ -382,8 +446,8 @@
     return mPlayer->getSyncSettings(sync, videoFps);
 }
 
-status_t NuPlayerDriver::seekTo(int msec) {
-    ALOGD("seekTo(%p) %d ms at state %d", this, msec, mState);
+status_t NuPlayerDriver::seekTo(int msec, MediaPlayerSeekMode mode) {
+    ALOGD("seekTo(%p) (%d ms, %d) at state %d", this, msec, mode, mState);
     Mutex::Autolock autoLock(mLock);
 
     int64_t seekTimeUs = msec * 1000ll;
@@ -398,7 +462,7 @@
             mSeekInProgress = true;
             // seeks can take a while, so we essentially paused
             notifyListener_l(MEDIA_PAUSED);
-            mPlayer->seekToAsync(seekTimeUs, true /* needNotify */);
+            mPlayer->seekToAsync(seekTimeUs, mode, true /* needNotify */);
             break;
         }
 
@@ -448,8 +512,107 @@
     return OK;
 }
 
+void NuPlayerDriver::updateMetrics(const char *where) {
+    if (where == NULL) {
+        where = "unknown";
+    }
+    ALOGV("updateMetrics(%p) from %s at state %d", this, where, mState);
+
+    // gather the final stats for this record
+    Vector<sp<AMessage>> trackStats;
+    mPlayer->getStats(&trackStats);
+
+    if (trackStats.size() > 0) {
+        for (size_t i = 0; i < trackStats.size(); ++i) {
+            const sp<AMessage> &stats = trackStats.itemAt(i);
+
+            AString mime;
+            stats->findString("mime", &mime);
+
+            AString name;
+            stats->findString("component-name", &name);
+
+            if (mime.startsWith("video/")) {
+                int32_t width, height;
+                mAnalyticsItem->setCString(kPlayerVMime, mime.c_str());
+                if (!name.empty()) {
+                    mAnalyticsItem->setCString(kPlayerVCodec, name.c_str());
+                }
+
+                if (stats->findInt32("width", &width)
+                        && stats->findInt32("height", &height)) {
+                    mAnalyticsItem->setInt32(kPlayerWidth, width);
+                    mAnalyticsItem->setInt32(kPlayerHeight, height);
+                }
+
+                int64_t numFramesTotal = 0;
+                int64_t numFramesDropped = 0;
+                stats->findInt64("frames-total", &numFramesTotal);
+                stats->findInt64("frames-dropped-output", &numFramesDropped);
+
+                mAnalyticsItem->setInt64(kPlayerFrames, numFramesTotal);
+                mAnalyticsItem->setInt64(kPlayerFramesDropped, numFramesDropped);
+
+
+            } else if (mime.startsWith("audio/")) {
+                mAnalyticsItem->setCString(kPlayerAMime, mime.c_str());
+                if (!name.empty()) {
+                    mAnalyticsItem->setCString(kPlayerACodec, name.c_str());
+                }
+            }
+        }
+    }
+
+    // always provide duration and playing time, even if they have 0/unknown values.
+
+    // getDuration() uses mLock for mutex -- careful where we use it.
+    int duration_ms = -1;
+    getDuration(&duration_ms);
+    mAnalyticsItem->setInt64(kPlayerDuration, duration_ms);
+
+    mAnalyticsItem->setInt64(kPlayerPlaying, (mPlayingTimeUs+500)/1000 );
+
+    mAnalyticsItem->setCString(kPlayerDataSourceType, mPlayer->getDataSourceType());
+}
+
+
+void NuPlayerDriver::logMetrics(const char *where) {
+    if (where == NULL) {
+        where = "unknown";
+    }
+    ALOGV("logMetrics(%p) from %s at state %d", this, where, mState);
+
+    if (mAnalyticsItem == NULL || mAnalyticsItem->isEnabled() == false) {
+        return;
+    }
+
+    // log only non-empty records
+    // we always updateMetrics() before we get here
+    // and that always injects 3 fields (duration, playing time, and
+    // datasource) into the record.
+    // So the canonical "empty" record has 3 elements in it.
+    if (mAnalyticsItem->count() > 3) {
+
+        mAnalyticsItem->setFinalized(true);
+        mAnalyticsItem->selfrecord();
+
+        // re-init in case we prepare() and start() again.
+        delete mAnalyticsItem ;
+        mAnalyticsItem = new MediaAnalyticsItem("nuplayer");
+        if (mAnalyticsItem) {
+            mAnalyticsItem->generateSessionID();
+        }
+    } else {
+        ALOGV("did not have anything to record");
+    }
+}
+
 status_t NuPlayerDriver::reset() {
     ALOGD("reset(%p) at state %d", this, mState);
+
+    updateMetrics("reset");
+    logMetrics("reset");
+
     Mutex::Autolock autoLock(mLock);
 
     switch (mState) {
@@ -476,9 +639,7 @@
         notifyListener_l(MEDIA_STOPPED);
     }
 
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("persist.debug.sf.stats", value, NULL) &&
-            (!strcmp("1", value) || !strcasecmp("true", value))) {
+    if (property_get_bool("persist.debug.sf.stats", false)) {
         Vector<String16> args;
         dump(-1, args);
     }
@@ -493,6 +654,7 @@
     mDurationUs = -1;
     mPositionUs = -1;
     mLooping = false;
+    mPlayingTimeUs = 0;
 
     return OK;
 }
@@ -569,7 +731,16 @@
     return INVALID_OPERATION;
 }
 
-status_t NuPlayerDriver::getParameter(int /* key */, Parcel * /* reply */) {
+status_t NuPlayerDriver::getParameter(int key, Parcel *reply) {
+
+    if (key == FOURCC('m','t','r','X')) {
+        // mtrX -- a play on 'metrics' (not matrix)
+        // gather current info all together, parcel it, and send it back
+        updateMetrics("api");
+        mAnalyticsItem->writeToParcel(reply);
+        return OK;
+    }
+
     return INVALID_OPERATION;
 }
 
@@ -624,6 +795,11 @@
     mDurationUs = durationUs;
 }
 
+void NuPlayerDriver::notifyMorePlayingTimeUs(int64_t playingUs) {
+    Mutex::Autolock autoLock(mLock);
+    mPlayingTimeUs += playingUs;
+}
+
 void NuPlayerDriver::notifySeekComplete() {
     ALOGV("notifySeekComplete(%p)", this);
     Mutex::Autolock autoLock(mLock);
@@ -657,6 +833,24 @@
     AString logString(" NuPlayer\n");
     char buf[256] = {0};
 
+    bool locked = false;
+    for (int i = 0; i < kDumpLockRetries; ++i) {
+        if (mLock.tryLock() == NO_ERROR) {
+            locked = true;
+            break;
+        }
+        usleep(kDumpLockSleepUs);
+    }
+
+    if (locked) {
+        snprintf(buf, sizeof(buf), "  state(%d), atEOS(%d), looping(%d), autoLoop(%d)\n",
+                mState, mAtEOS, mLooping, mAutoLoop);
+        mLock.unlock();
+    } else {
+        snprintf(buf, sizeof(buf), "  NPD(%p) lock is taken\n", this);
+    }
+    logString.append(buf);
+
     for (size_t i = 0; i < trackStats.size(); ++i) {
         const sp<AMessage> &stats = trackStats.itemAt(i);
 
@@ -715,8 +909,8 @@
 
 void NuPlayerDriver::notifyListener_l(
         int msg, int ext1, int ext2, const Parcel *in) {
-    ALOGD("notifyListener_l(%p), (%d, %d, %d), loop setting(%d, %d)",
-            this, msg, ext1, ext2, mAutoLoop, mLooping);
+    ALOGD("notifyListener_l(%p), (%d, %d, %d, %d), loop setting(%d, %d)",
+            this, msg, ext1, ext2, (in == NULL ? -1 : (int)in->dataSize()), mAutoLoop, mLooping);
     switch (msg) {
         case MEDIA_PLAYBACK_COMPLETE:
         {
@@ -750,6 +944,15 @@
 
         case MEDIA_ERROR:
         {
+            // when we have an error, add it to the analytics for this playback.
+            // ext1 is our primary 'error type' value. Only add ext2 when non-zero.
+            // [test against msg is due to fall through from previous switch value]
+            if (msg == MEDIA_ERROR) {
+                mAnalyticsItem->setInt32(kPlayerError, ext1);
+                if (ext2 != 0) {
+                    mAnalyticsItem->setInt32(kPlayerErrorCode, ext2);
+                }
+            }
             mAtEOS = true;
             break;
         }
@@ -774,6 +977,8 @@
 }
 
 void NuPlayerDriver::notifyPrepareCompleted(status_t err) {
+    ALOGV("notifyPrepareCompleted %d", err);
+
     Mutex::Autolock autoLock(mLock);
 
     if (mState != STATE_PREPARING) {
@@ -818,4 +1023,29 @@
     mPlayerFlags = flags;
 }
 
+// Modular DRM
+status_t NuPlayerDriver::prepareDrm(const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId)
+{
+    ALOGV("prepareDrm(%p) state: %d", this, mState);
+
+    // leaving the state verification for mediaplayer.cpp
+    status_t ret = mPlayer->prepareDrm(uuid, drmSessionId);
+
+    ALOGV("prepareDrm ret: %d", ret);
+
+    return ret;
+}
+
+status_t NuPlayerDriver::releaseDrm()
+{
+    ALOGV("releaseDrm(%p) state: %d", this, mState);
+
+    // leaving the state verification for mediaplayer.cpp
+    status_t ret = mPlayer->releaseDrm();
+
+    ALOGV("releaseDrm ret: %d", ret);
+
+    return ret;
+}
+
 }  // namespace android
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h
index 26d3a60..c5ddcb0 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h
@@ -16,6 +16,7 @@
 
 #include <media/MediaPlayerInterface.h>
 
+#include <media/MediaAnalyticsItem.h>
 #include <media/stagefright/foundation/ABase.h>
 
 namespace android {
@@ -24,7 +25,7 @@
 struct NuPlayer;
 
 struct NuPlayerDriver : public MediaPlayerInterface {
-    NuPlayerDriver(pid_t pid);
+    explicit NuPlayerDriver(pid_t pid);
 
     virtual status_t initCheck();
 
@@ -43,6 +44,11 @@
 
     virtual status_t setVideoSurfaceTexture(
             const sp<IGraphicBufferProducer> &bufferProducer);
+
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) override;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
+
     virtual status_t prepare();
     virtual status_t prepareAsync();
     virtual status_t start();
@@ -53,7 +59,8 @@
     virtual status_t getPlaybackSettings(AudioPlaybackRate *rate);
     virtual status_t setSyncSettings(const AVSyncSettings &sync, float videoFpsHint);
     virtual status_t getSyncSettings(AVSyncSettings *sync, float *videoFps);
-    virtual status_t seekTo(int msec);
+    virtual status_t seekTo(
+            int msec, MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC);
     virtual status_t getCurrentPosition(int *msec);
     virtual status_t getDuration(int *msec);
     virtual status_t reset();
@@ -74,11 +81,16 @@
     void notifyResetComplete();
     void notifySetSurfaceComplete();
     void notifyDuration(int64_t durationUs);
+    void notifyMorePlayingTimeUs(int64_t timeUs);
     void notifySeekComplete();
     void notifySeekComplete_l();
     void notifyListener(int msg, int ext1 = 0, int ext2 = 0, const Parcel *in = NULL);
     void notifyFlagsChanged(uint32_t flags);
 
+    // Modular DRM
+    virtual status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId);
+    virtual status_t releaseDrm();
+
 protected:
     virtual ~NuPlayerDriver();
 
@@ -111,17 +123,23 @@
     int64_t mDurationUs;
     int64_t mPositionUs;
     bool mSeekInProgress;
+    int64_t mPlayingTimeUs;
     // <<<
 
     sp<ALooper> mLooper;
-    sp<NuPlayer> mPlayer;
+    const sp<NuPlayer> mPlayer;
     sp<AudioSink> mAudioSink;
     uint32_t mPlayerFlags;
 
+    MediaAnalyticsItem *mAnalyticsItem;
+
     bool mAtEOS;
     bool mLooping;
     bool mAutoLoop;
 
+    void updateMetrics(const char *where);
+    void logMetrics(const char *where);
+
     status_t prepare_l();
     status_t start_l();
     void notifyListener_l(int msg, int ext1 = 0, int ext2 = 0, const Parcel *in = NULL);
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp
new file mode 100644
index 0000000..b7c9db7
--- /dev/null
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp
@@ -0,0 +1,336 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "NuPlayerDrm"
+
+#include "NuPlayerDrm.h"
+
+#include <binder/IServiceManager.h>
+#include <media/IMediaDrmService.h>
+#include <utils/Log.h>
+
+
+namespace android {
+
+// static helpers - internal
+
+sp<IDrm> NuPlayerDrm::CreateDrm(status_t *pstatus)
+{
+    status_t &status = *pstatus;
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> binder = sm->getService(String16("media.drm"));
+    ALOGV("CreateDrm binder %p", (binder != NULL ? binder.get() : 0));
+
+    sp<IMediaDrmService> service = interface_cast<IMediaDrmService>(binder);
+    if (service == NULL) {
+        ALOGE("CreateDrm failed at IMediaDrmService");
+        return NULL;
+    }
+
+    sp<IDrm> drm = service->makeDrm();
+    if (drm == NULL) {
+        ALOGE("CreateDrm failed at makeDrm");
+        return NULL;
+    }
+
+    // this is before plugin creation so NO_INIT is fine
+    status = drm->initCheck();
+    if (status != OK && status != NO_INIT) {
+        ALOGE("CreateDrm failed drm->initCheck(): %d", status);
+        return NULL;
+    }
+    return drm;
+}
+
+sp<ICrypto> NuPlayerDrm::createCrypto(status_t *pstatus)
+{
+    status_t &status = *pstatus;
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> binder = sm->getService(String16("media.drm"));
+
+    sp<IMediaDrmService> service = interface_cast<IMediaDrmService>(binder);
+    if (service == NULL) {
+        status = UNKNOWN_ERROR;
+        ALOGE("CreateCrypto failed at IMediaDrmService");
+        return NULL;
+    }
+
+    sp<ICrypto> crypto = service->makeCrypto();
+    if (crypto == NULL) {
+        status = UNKNOWN_ERROR;
+        ALOGE("createCrypto failed");
+        return NULL;
+    }
+
+    // this is before plugin creation so NO_INIT is fine
+    status = crypto->initCheck();
+    if (status != OK && status != NO_INIT) {
+        ALOGE("createCrypto failed crypto->initCheck(): %d", status);
+        return NULL;
+    }
+
+    return crypto;
+}
+
+Vector<DrmUUID> NuPlayerDrm::parsePSSH(const void *pssh, size_t psshsize)
+{
+    Vector<DrmUUID> drmSchemes, empty;
+    const int DATALEN_SIZE = 4;
+
+    // the format of the buffer is 1 or more of:
+    //    {
+    //        16 byte uuid
+    //        4 byte data length N
+    //        N bytes of data
+    //    }
+    // Determine the number of entries in the source data.
+    // Since we got the data from stagefright, we trust it is valid and properly formatted.
+
+    const uint8_t *data = (const uint8_t*)pssh;
+    size_t len = psshsize;
+    size_t numentries = 0;
+    while (len > 0) {
+        if (len < DrmUUID::UUID_SIZE) {
+            ALOGE("ParsePSSH: invalid PSSH data");
+            return empty;
+        }
+
+        const uint8_t *uuidPtr = data;
+
+        // skip uuid
+        data += DrmUUID::UUID_SIZE;
+        len -= DrmUUID::UUID_SIZE;
+
+        // get data length
+        if (len < DATALEN_SIZE) {
+            ALOGE("ParsePSSH: invalid PSSH data");
+            return empty;
+        }
+
+        uint32_t datalen = *((uint32_t*)data);
+        data += DATALEN_SIZE;
+        len -= DATALEN_SIZE;
+
+        if (len < datalen) {
+            ALOGE("ParsePSSH: invalid PSSH data");
+            return empty;
+        }
+
+        // skip the data
+        data += datalen;
+        len -= datalen;
+
+        DrmUUID _uuid(uuidPtr);
+        drmSchemes.add(_uuid);
+
+        ALOGV("ParsePSSH[%zu]: %s: %s", numentries,
+                _uuid.toHexString().string(),
+                DrmUUID::arrayToHex(data, datalen).string()
+             );
+
+        numentries++;
+    }
+
+    return drmSchemes;
+}
+
+Vector<DrmUUID> NuPlayerDrm::getSupportedDrmSchemes(const void *pssh, size_t psshsize)
+{
+    Vector<DrmUUID> psshDRMs = parsePSSH(pssh, psshsize);
+
+    Vector<DrmUUID> supportedDRMs;
+     // temporary DRM object for crypto Scheme enquiry (without creating a plugin)
+    status_t status = OK;
+    sp<IDrm> drm = CreateDrm(&status);
+    if (drm != NULL) {
+        for (size_t i = 0; i < psshDRMs.size(); i++) {
+            DrmUUID uuid = psshDRMs[i];
+            if (drm->isCryptoSchemeSupported(uuid.ptr(), String8()))
+                supportedDRMs.add(uuid);
+        }
+
+        drm.clear();
+    } else {
+        ALOGE("getSupportedDrmSchemes: Can't create Drm obj: %d", status);
+    }
+
+    ALOGV("getSupportedDrmSchemes: psshDRMs: %zu supportedDRMs: %zu",
+            psshDRMs.size(), supportedDRMs.size());
+
+    return supportedDRMs;
+}
+
+// static helpers - public
+
+sp<ICrypto> NuPlayerDrm::createCryptoAndPlugin(const uint8_t uuid[16],
+        const Vector<uint8_t> &drmSessionId, status_t &status)
+{
+    // Extra check
+    if (drmSessionId.isEmpty()) {
+        status = INVALID_OPERATION;
+        ALOGE("createCryptoAndPlugin: Failed. Empty drmSessionId. status: %d", status);
+        return NULL;
+    }
+
+    status = OK;
+    sp<ICrypto> crypto = createCrypto(&status);
+    if (crypto == NULL) {
+        ALOGE("createCryptoAndPlugin: createCrypto failed. status: %d", status);
+        return NULL;
+    }
+    ALOGV("createCryptoAndPlugin: createCrypto succeeded");
+
+    status = crypto->createPlugin(uuid, drmSessionId.array(), drmSessionId.size());
+    if (status != OK) {
+        ALOGE("createCryptoAndPlugin: createCryptoPlugin failed. status: %d", status);
+        // crypto will clean itself when leaving the current scope
+        return NULL;
+    }
+
+    return crypto;
+}
+
+// Parcel has only private copy constructor so passing it in rather than returning
+void NuPlayerDrm::retrieveDrmInfo(const void *pssh, size_t psshsize, Parcel *parcel)
+{
+    // 1) PSSH bytes
+    parcel->writeUint32(psshsize);
+    parcel->writeByteArray(psshsize, (const uint8_t*)pssh);
+
+    ALOGV("retrieveDrmInfo: MEDIA_DRM_INFO  PSSH: size: %zu %s", psshsize,
+            DrmUUID::arrayToHex((uint8_t*)pssh, psshsize).string());
+
+    // 2) supportedDRMs
+    Vector<DrmUUID> supportedDRMs = getSupportedDrmSchemes(pssh, psshsize);
+    parcel->writeUint32(supportedDRMs.size());
+    for (size_t i = 0; i < supportedDRMs.size(); i++) {
+        DrmUUID uuid = supportedDRMs[i];
+        parcel->writeByteArray(DrmUUID::UUID_SIZE, uuid.ptr());
+
+        ALOGV("retrieveDrmInfo: MEDIA_DRM_INFO  supportedScheme[%zu] %s", i,
+                uuid.toHexString().string());
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////
+/// Helpers for NuPlayerDecoder
+////////////////////////////////////////////////////////////////////////////////////////////
+
+NuPlayerDrm::CryptoInfo *NuPlayerDrm::makeCryptoInfo(
+        int numSubSamples,
+        uint8_t key[kBlockSize],
+        uint8_t iv[kBlockSize],
+        CryptoPlugin::Mode mode,
+        size_t *clearbytes,
+        size_t *encryptedbytes)
+{
+    // size needed to store all the crypto data
+    size_t cryptosize = sizeof(CryptoInfo) +
+                        sizeof(CryptoPlugin::SubSample) * numSubSamples;
+    CryptoInfo *ret = (CryptoInfo*) malloc(cryptosize);
+    if (ret == NULL) {
+        ALOGE("couldn't allocate %zu bytes", cryptosize);
+        return NULL;
+    }
+    ret->numSubSamples = numSubSamples;
+    memcpy(ret->key, key, kBlockSize);
+    memcpy(ret->iv, iv, kBlockSize);
+    ret->mode = mode;
+    ret->pattern.mEncryptBlocks = 0;
+    ret->pattern.mSkipBlocks = 0;
+    ret->subSamples = (CryptoPlugin::SubSample*)(ret + 1);
+    CryptoPlugin::SubSample *subSamples = ret->subSamples;
+
+    for (int i = 0; i < numSubSamples; i++) {
+        subSamples[i].mNumBytesOfClearData = (clearbytes == NULL) ? 0 : clearbytes[i];
+        subSamples[i].mNumBytesOfEncryptedData = (encryptedbytes == NULL) ?
+                                                  0 :
+                                                  encryptedbytes[i];
+    }
+
+    return ret;
+}
+
+NuPlayerDrm::CryptoInfo *NuPlayerDrm::getSampleCryptoInfo(sp<MetaData> meta)
+{
+    uint32_t type;
+    const void *crypteddata;
+    size_t cryptedsize;
+
+    if (meta == NULL) {
+        ALOGE("getSampleCryptoInfo: Unexpected. No meta data for sample.");
+        return NULL;
+    }
+
+    if (!meta->findData(kKeyEncryptedSizes, &type, &crypteddata, &cryptedsize)) {
+        return NULL;
+    }
+    size_t numSubSamples = cryptedsize / sizeof(size_t);
+
+    if (numSubSamples <= 0) {
+        ALOGE("getSampleCryptoInfo INVALID numSubSamples: %zu", numSubSamples);
+        return NULL;
+    }
+
+    const void *cleardata;
+    size_t clearsize;
+    if (meta->findData(kKeyPlainSizes, &type, &cleardata, &clearsize)) {
+        if (clearsize != cryptedsize) {
+            // The two must be of the same length.
+            ALOGE("getSampleCryptoInfo mismatch cryptedsize: %zu != clearsize: %zu",
+                    cryptedsize, clearsize);
+            return NULL;
+        }
+    }
+
+    const void *key;
+    size_t keysize;
+    if (meta->findData(kKeyCryptoKey, &type, &key, &keysize)) {
+        if (keysize != kBlockSize) {
+            ALOGE("getSampleCryptoInfo Keys must be %d bytes in length: %zu",
+                    kBlockSize, keysize);
+            // Keys must be 16 bytes in length.
+            return NULL;
+        }
+    }
+
+    const void *iv;
+    size_t ivsize;
+    if (meta->findData(kKeyCryptoIV, &type, &iv, &ivsize)) {
+        if (ivsize != kBlockSize) {
+            ALOGE("getSampleCryptoInfo IV must be %d bytes in length: %zu",
+                    kBlockSize, ivsize);
+            // IVs must be 16 bytes in length.
+            return NULL;
+        }
+    }
+
+    int32_t mode;
+    if (!meta->findInt32(kKeyCryptoMode, &mode)) {
+        mode = CryptoPlugin::kMode_AES_CTR;
+    }
+
+    return makeCryptoInfo(numSubSamples,
+            (uint8_t*) key,
+            (uint8_t*) iv,
+            (CryptoPlugin::Mode)mode,
+            (size_t*) cleardata,
+            (size_t*) crypteddata);
+}
+
+}   // namespace android
+
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDrm.h b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.h
new file mode 100644
index 0000000..6b8a2d9
--- /dev/null
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef NUPLAYER_DRM_H_
+#define NUPLAYER_DRM_H_
+
+#include <binder/Parcel.h>
+#include <media/ICrypto.h>
+#include <media/IDrm.h>
+#include <media/stagefright/MetaData.h> // for CryptInfo
+
+
+namespace android {
+
+    struct DrmUUID {
+        static const int UUID_SIZE = 16;
+
+        DrmUUID() {
+            memset(this->uuid, 0, sizeof(uuid));
+        }
+
+        // to allow defining Vector/KeyedVector of UUID type
+        DrmUUID(const DrmUUID &a) {
+            memcpy(this->uuid, a.uuid, sizeof(uuid));
+        }
+
+        // to allow defining Vector/KeyedVector of UUID type
+        DrmUUID(const uint8_t uuid_in[UUID_SIZE]) {
+            memcpy(this->uuid, uuid_in, sizeof(uuid));
+        }
+
+        const uint8_t *ptr() const {
+            return uuid;
+        }
+
+        String8 toHexString() const {
+            return arrayToHex(uuid, UUID_SIZE);
+        }
+
+        static String8 toHexString(const uint8_t uuid_in[UUID_SIZE]) {
+            return arrayToHex(uuid_in, UUID_SIZE);
+        }
+
+        static String8 arrayToHex(const uint8_t *array, int bytes) {
+            String8 result;
+            for (int i = 0; i < bytes; i++) {
+                result.appendFormat("%02x", array[i]);
+            }
+
+            return result;
+        }
+
+    protected:
+        uint8_t uuid[UUID_SIZE];
+    };
+
+
+    struct NuPlayerDrm {
+
+        // static helpers - internal
+
+    protected:
+        static sp<IDrm> CreateDrm(status_t *pstatus);
+        static sp<ICrypto> createCrypto(status_t *pstatus);
+        static Vector<DrmUUID> parsePSSH(const void *pssh, size_t psshsize);
+        static Vector<DrmUUID> getSupportedDrmSchemes(const void *pssh, size_t psshsize);
+
+        // static helpers - public
+
+    public:
+        static sp<ICrypto> createCryptoAndPlugin(const uint8_t uuid[16],
+                const Vector<uint8_t> &drmSessionId, status_t &status);
+        // Parcel has only private copy constructor so passing it in rather than returning
+        static void retrieveDrmInfo(const void *pssh, size_t psshsize, Parcel *parcel);
+
+        ////////////////////////////////////////////////////////////////////////////////////////////
+        /// Helpers for NuPlayerDecoder
+        ////////////////////////////////////////////////////////////////////////////////////////////
+
+        static const uint8_t kBlockSize = 16; // AES_BLOCK_SIZE
+
+        struct CryptoInfo {
+            int numSubSamples;
+            uint8_t key[kBlockSize];
+            uint8_t iv[kBlockSize];
+            CryptoPlugin::Mode mode;
+            CryptoPlugin::Pattern pattern;
+            CryptoPlugin::SubSample *subSamples;
+        };
+
+        static CryptoInfo *makeCryptoInfo(
+                int numSubSamples,
+                uint8_t key[kBlockSize],
+                uint8_t iv[kBlockSize],
+                CryptoPlugin::Mode mode,
+                size_t *clearbytes,
+                size_t *encryptedbytes);
+
+        static CryptoInfo *getSampleCryptoInfo(sp<MetaData> meta);
+
+    };  // NuPlayerDrm
+
+}   // android
+
+#endif     //NUPLAYER_DRM_H_
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
index b742762..5775b43 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
@@ -21,7 +21,6 @@
 #include "NuPlayerRenderer.h"
 #include <algorithm>
 #include <cutils/properties.h>
-#include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/AUtils.h>
@@ -31,6 +30,7 @@
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
 #include <media/stagefright/VideoFrameScheduler.h>
+#include <media/MediaCodecBuffer.h>
 
 #include <inttypes.h>
 
@@ -144,9 +144,10 @@
 
     // Try to avoid racing condition in case callback is still on.
     Mutex::Autolock autoLock(mLock);
-    mUseAudioCallback = false;
-    flushQueue(&mAudioQueue);
-    flushQueue(&mVideoQueue);
+    if (mUseAudioCallback) {
+        flushQueue(&mAudioQueue);
+        flushQueue(&mVideoQueue);
+    }
     mWakeLock.clear();
     mMediaClock.clear();
     mVideoScheduler.clear();
@@ -156,12 +157,12 @@
 
 void NuPlayer::Renderer::queueBuffer(
         bool audio,
-        const sp<ABuffer> &buffer,
+        const sp<MediaCodecBuffer> &buffer,
         const sp<AMessage> &notifyConsumed) {
     sp<AMessage> msg = new AMessage(kWhatQueueBuffer, this);
     msg->setInt32("queueGeneration", getQueueGeneration(audio));
     msg->setInt32("audio", static_cast<int32_t>(audio));
-    msg->setBuffer("buffer", buffer);
+    msg->setObject("buffer", buffer);
     msg->setMessage("notifyConsumed", notifyConsumed);
     msg->post();
 }
@@ -297,7 +298,7 @@
             ++mVideoDrainGeneration;
         }
 
-        clearAnchorTime_l();
+        mMediaClock->clearAnchor();
         mVideoLateByUs = 0;
         mSyncQueues = false;
     }
@@ -374,7 +375,8 @@
     }
 }
 
-void NuPlayer::Renderer::clearAnchorTime_l() {
+// Called on renderer looper.
+void NuPlayer::Renderer::clearAnchorTime() {
     mMediaClock->clearAnchor();
     mAnchorTimeMediaUs = -1;
     mAnchorNumFramesWritten = -1;
@@ -395,18 +397,20 @@
         bool offloadOnly,
         bool hasVideo,
         uint32_t flags,
-        bool *isOffloaded) {
+        bool *isOffloaded,
+        bool isStreaming) {
     sp<AMessage> msg = new AMessage(kWhatOpenAudioSink, this);
     msg->setMessage("format", format);
     msg->setInt32("offload-only", offloadOnly);
     msg->setInt32("has-video", hasVideo);
     msg->setInt32("flags", flags);
+    msg->setInt32("isStreaming", isStreaming);
 
     sp<AMessage> response;
-    msg->postAndAwaitResponse(&response);
+    status_t postStatus = msg->postAndAwaitResponse(&response);
 
     int32_t err;
-    if (!response->findInt32("err", &err)) {
+    if (postStatus != OK || response.get() == nullptr || !response->findInt32("err", &err)) {
         err = INVALID_OPERATION;
     } else if (err == OK && isOffloaded != NULL) {
         int32_t offload;
@@ -423,6 +427,27 @@
     msg->postAndAwaitResponse(&response);
 }
 
+void NuPlayer::Renderer::changeAudioFormat(
+        const sp<AMessage> &format,
+        bool offloadOnly,
+        bool hasVideo,
+        uint32_t flags,
+        bool isStreaming,
+        const sp<AMessage> &notify) {
+    sp<AMessage> meta = new AMessage;
+    meta->setMessage("format", format);
+    meta->setInt32("offload-only", offloadOnly);
+    meta->setInt32("has-video", hasVideo);
+    meta->setInt32("flags", flags);
+    meta->setInt32("isStreaming", isStreaming);
+
+    sp<AMessage> msg = new AMessage(kWhatChangeAudioFormat, this);
+    msg->setInt32("queueGeneration", getQueueGeneration(true /* audio */));
+    msg->setMessage("notify", notify);
+    msg->setMessage("meta", meta);
+    msg->post();
+}
+
 void NuPlayer::Renderer::onMessageReceived(const sp<AMessage> &msg) {
     switch (msg->what()) {
         case kWhatOpenAudioSink:
@@ -439,7 +464,10 @@
             uint32_t flags;
             CHECK(msg->findInt32("flags", (int32_t *)&flags));
 
-            status_t err = onOpenAudioSink(format, offloadOnly, hasVideo, flags);
+            uint32_t isStreaming;
+            CHECK(msg->findInt32("isStreaming", (int32_t *)&isStreaming));
+
+            status_t err = onOpenAudioSink(format, offloadOnly, hasVideo, flags, isStreaming);
 
             sp<AMessage> response = new AMessage;
             response->setInt32("err", err);
@@ -470,6 +498,41 @@
             break;
         }
 
+        case kWhatChangeAudioFormat:
+        {
+            int32_t queueGeneration;
+            CHECK(msg->findInt32("queueGeneration", &queueGeneration));
+
+            sp<AMessage> notify;
+            CHECK(msg->findMessage("notify", &notify));
+
+            if (offloadingAudio()) {
+                ALOGW("changeAudioFormat should NOT be called in offload mode");
+                notify->setInt32("err", INVALID_OPERATION);
+                notify->post();
+                break;
+            }
+
+            sp<AMessage> meta;
+            CHECK(msg->findMessage("meta", &meta));
+
+            if (queueGeneration != getQueueGeneration(true /* audio */)
+                    || mAudioQueue.empty()) {
+                onChangeAudioFormat(meta, notify);
+                break;
+            }
+
+            QueueEntry entry;
+            entry.mNotifyConsumed = notify;
+            entry.mMeta = meta;
+
+            Mutex::Autolock autoLock(mLock);
+            mAudioQueue.push_back(entry);
+            postDrainAudioQueue_l();
+
+            break;
+        }
+
         case kWhatDrainAudioQueue:
         {
             mDrainAudioQueuePending = false;
@@ -869,7 +932,7 @@
     while (it != mAudioQueue.end()) {
         int32_t eos;
         QueueEntry *entry = &*it++;
-        if (entry->mBuffer == NULL
+        if ((entry->mBuffer == nullptr && entry->mNotifyConsumed == nullptr)
                 || (entry->mNotifyConsumed->findInt32("eos", &eos) && eos != 0)) {
             itEOS = it;
             foundEOS = true;
@@ -879,9 +942,14 @@
     if (foundEOS) {
         // post all replies before EOS and drop the samples
         for (it = mAudioQueue.begin(); it != itEOS; it++) {
-            if (it->mBuffer == NULL) {
-                // delay doesn't matter as we don't even have an AudioTrack
-                notifyEOS(true /* audio */, it->mFinalResult);
+            if (it->mBuffer == nullptr) {
+                if (it->mNotifyConsumed == nullptr) {
+                    // delay doesn't matter as we don't even have an AudioTrack
+                    notifyEOS(true /* audio */, it->mFinalResult);
+                } else {
+                    // TAG for re-opening audio sink.
+                    onChangeAudioFormat(it->mMeta, it->mNotifyConsumed);
+                }
             } else {
                 it->mNotifyConsumed->post();
             }
@@ -933,10 +1001,22 @@
     while (!mAudioQueue.empty()) {
         QueueEntry *entry = &*mAudioQueue.begin();
 
-        mLastAudioBufferDrained = entry->mBufferOrdinal;
-
         if (entry->mBuffer == NULL) {
+            if (entry->mNotifyConsumed != nullptr) {
+                // TAG for re-open audio sink.
+                onChangeAudioFormat(entry->mMeta, entry->mNotifyConsumed);
+                mAudioQueue.erase(mAudioQueue.begin());
+                continue;
+            }
+
             // EOS
+            if (mPaused) {
+                // Do not notify EOS when paused.
+                // This is needed to avoid switch to next clip while in pause.
+                ALOGV("onDrainAudioQueue(): Do not notify EOS when paused");
+                return false;
+            }
+
             int64_t postEOSDelayUs = 0;
             if (mAudioSink->needsTrailingPadding()) {
                 postEOSDelayUs = getPendingAudioPlayoutDurationUs(ALooper::GetNowUs());
@@ -956,6 +1036,8 @@
             return false;
         }
 
+        mLastAudioBufferDrained = entry->mBufferOrdinal;
+
         // ignore 0-sized buffer which could be EOS marker with no data
         if (entry->mOffset == 0 && entry->mBuffer->size() > 0) {
             int64_t mediaTimeUs;
@@ -1291,8 +1373,7 @@
         if (!mVideoSampleReceived && !mHasAudio) {
             // This will ensure that the first frame after a flush won't be used as anchor
             // when renderer is in paused state, because resume can happen any time after seek.
-            Mutex::Autolock autoLock(mLock);
-            clearAnchorTime_l();
+            clearAnchorTime();
         }
     }
 
@@ -1368,8 +1449,9 @@
         }
     }
 
-    sp<ABuffer> buffer;
-    CHECK(msg->findBuffer("buffer", &buffer));
+    sp<RefBase> obj;
+    CHECK(msg->findObject("buffer", &obj));
+    sp<MediaCodecBuffer> buffer = static_cast<MediaCodecBuffer *>(obj.get());
 
     sp<AMessage> notifyConsumed;
     CHECK(msg->findMessage("notifyConsumed", &notifyConsumed));
@@ -1395,8 +1477,8 @@
         return;
     }
 
-    sp<ABuffer> firstAudioBuffer = (*mAudioQueue.begin()).mBuffer;
-    sp<ABuffer> firstVideoBuffer = (*mVideoQueue.begin()).mBuffer;
+    sp<MediaCodecBuffer> firstAudioBuffer = (*mAudioQueue.begin()).mBuffer;
+    sp<MediaCodecBuffer> firstVideoBuffer = (*mVideoQueue.begin()).mBuffer;
 
     if (firstAudioBuffer == NULL || firstVideoBuffer == NULL) {
         // EOS signalled on either queue.
@@ -1501,8 +1583,8 @@
         // Therefore we'll stop syncing the queues if at least one of them
         // is flushed.
         syncQueuesDone_l();
-        clearAnchorTime_l();
     }
+    clearAnchorTime();
 
     ALOGV("flushing %s", audio ? "audio" : "video");
     if (audio) {
@@ -1573,6 +1655,9 @@
 
         if (entry->mBuffer != NULL) {
             entry->mNotifyConsumed->post();
+        } else if (entry->mNotifyConsumed != nullptr) {
+            // Is it needed to open audio sink now?
+            onChangeAudioFormat(entry->mMeta, entry->mNotifyConsumed);
         }
 
         queue->erase(queue->begin());
@@ -1610,10 +1695,7 @@
     }
     CHECK(!mDrainAudioQueuePending);
     mNumFramesWritten = 0;
-    {
-        Mutex::Autolock autoLock(mLock);
-        mAnchorNumFramesWritten = -1;
-    }
+    mAnchorNumFramesWritten = -1;
     uint32_t written;
     if (mAudioSink->getFramesWritten(&written) == OK) {
         mNumFramesWritten = written;
@@ -1770,7 +1852,8 @@
         const sp<AMessage> &format,
         bool offloadOnly,
         bool hasVideo,
-        uint32_t flags) {
+        uint32_t flags,
+        bool isStreaming) {
     ALOGV("openAudioSink: offloadOnly(%d) offloadingAudio(%d)",
             offloadOnly, offloadingAudio());
     bool audioSinkChanged = false;
@@ -1823,7 +1906,7 @@
             offloadInfo.stream_type = AUDIO_STREAM_MUSIC;
             offloadInfo.bit_rate = avgBitRate;
             offloadInfo.has_video = hasVideo;
-            offloadInfo.is_streaming = true;
+            offloadInfo.is_streaming = isStreaming;
 
             if (memcmp(&mCurrentOffloadInfo, &offloadInfo, sizeof(offloadInfo)) == 0) {
                 ALOGV("openAudioSink: no change in offload mode");
@@ -1961,5 +2044,30 @@
     mCurrentPcmInfo = AUDIO_PCMINFO_INITIALIZER;
 }
 
+void NuPlayer::Renderer::onChangeAudioFormat(
+        const sp<AMessage> &meta, const sp<AMessage> &notify) {
+    sp<AMessage> format;
+    CHECK(meta->findMessage("format", &format));
+
+    int32_t offloadOnly;
+    CHECK(meta->findInt32("offload-only", &offloadOnly));
+
+    int32_t hasVideo;
+    CHECK(meta->findInt32("has-video", &hasVideo));
+
+    uint32_t flags;
+    CHECK(meta->findInt32("flags", (int32_t *)&flags));
+
+    uint32_t isStreaming;
+    CHECK(meta->findInt32("isStreaming", (int32_t *)&isStreaming));
+
+    status_t err = onOpenAudioSink(format, offloadOnly, hasVideo, flags, isStreaming);
+
+    if (err != OK) {
+        notify->setInt32("err", err);
+    }
+    notify->post();
+}
+
 }  // namespace android
 
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h
index fe7f8fa..e6850b5 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h
@@ -25,9 +25,9 @@
 
 namespace android {
 
-struct ABuffer;
 class  AWakeLock;
 struct MediaClock;
+class MediaCodecBuffer;
 struct VideoFrameScheduler;
 
 struct NuPlayer::Renderer : public AHandler {
@@ -46,7 +46,7 @@
 
     void queueBuffer(
             bool audio,
-            const sp<ABuffer> &buffer,
+            const sp<MediaCodecBuffer> &buffer,
             const sp<AMessage> &notifyConsumed);
 
     void queueEOS(bool audio, status_t finalResult);
@@ -60,8 +60,6 @@
 
     void signalTimeDiscontinuity();
 
-    void signalAudioSinkChanged();
-
     void signalDisableOffloadAudio();
     void signalEnableOffloadAudio();
 
@@ -78,9 +76,19 @@
             bool offloadOnly,
             bool hasVideo,
             uint32_t flags,
-            bool *isOffloaded);
+            bool *isOffloaded,
+            bool isStreaming);
     void closeAudioSink();
 
+    // re-open audio sink after all pending audio buffers played.
+    void changeAudioFormat(
+            const sp<AMessage> &format,
+            bool offloadOnly,
+            bool hasVideo,
+            uint32_t flags,
+            bool isStreaming,
+            const sp<AMessage> &notify);
+
     enum {
         kWhatEOS                      = 'eos ',
         kWhatFlushComplete            = 'fluC',
@@ -118,14 +126,19 @@
         kWhatResume              = 'resm',
         kWhatOpenAudioSink       = 'opnA',
         kWhatCloseAudioSink      = 'clsA',
+        kWhatChangeAudioFormat   = 'chgA',
         kWhatStopAudioSink       = 'stpA',
         kWhatDisableOffloadAudio = 'noOA',
         kWhatEnableOffloadAudio  = 'enOA',
         kWhatSetVideoFrameRate   = 'sVFR',
     };
 
+    // if mBuffer != nullptr, it's a buffer containing real data.
+    // else if mNotifyConsumed == nullptr, it's EOS.
+    // else it's a tag for re-opening audio sink in different format.
     struct QueueEntry {
-        sp<ABuffer> mBuffer;
+        sp<MediaCodecBuffer> mBuffer;
+        sp<AMessage> mMeta;
         sp<AMessage> mNotifyConsumed;
         size_t mOffset;
         status_t mFinalResult;
@@ -220,7 +233,7 @@
     int64_t getPendingAudioPlayoutDurationUs(int64_t nowUs);
     void postDrainAudioQueue_l(int64_t delayUs = 0);
 
-    void clearAnchorTime_l();
+    void clearAnchorTime();
     void clearAudioFirstAnchorTime_l();
     void setAudioFirstAnchorTimeIfNeeded_l(int64_t mediaUs);
     void setVideoLateByUs(int64_t lateUs);
@@ -256,8 +269,10 @@
             const sp<AMessage> &format,
             bool offloadOnly,
             bool hasVideo,
-            uint32_t flags);
+            uint32_t flags,
+            bool isStreaming);
     void onCloseAudioSink();
+    void onChangeAudioFormat(const sp<AMessage> &meta, const sp<AMessage> &notify);
 
     void notifyEOS(bool audio, status_t finalResult, int64_t delayUs = 0);
     void notifyFlushComplete(bool audio);
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerSource.h b/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
index 0176eafa..8ba9c0d 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
@@ -20,9 +20,10 @@
 
 #include "NuPlayer.h"
 
+#include <media/ICrypto.h>
+#include <media/mediaplayer.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/MetaData.h>
-#include <media/mediaplayer.h>
 #include <utils/Vector.h>
 
 namespace android {
@@ -37,8 +38,8 @@
         FLAG_CAN_SEEK_FORWARD   = 4,  // the "10 sec forward button"
         FLAG_CAN_SEEK           = 8,  // the "seek bar"
         FLAG_DYNAMIC_DURATION   = 16,
-        FLAG_SECURE             = 32,
-        FLAG_PROTECTED          = 64,
+        FLAG_SECURE             = 32, // Secure codec is required.
+        FLAG_PROTECTED          = 64, // The screen needs to be protected (screenshot is disabled).
     };
 
     enum {
@@ -55,14 +56,20 @@
         kWhatQueueDecoderShutdown,
         kWhatDrmNoLicense,
         kWhatInstantiateSecureDecoders,
+        // Modular DRM
+        kWhatDrmInfo,
     };
 
     // The provides message is used to notify the player about various
     // events.
-    Source(const sp<AMessage> &notify)
+    explicit Source(const sp<AMessage> &notify)
         : mNotify(notify) {
     }
 
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) = 0;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) = 0;
+
     virtual void prepareAsync() = 0;
 
     virtual void start() = 0;
@@ -77,7 +84,11 @@
     // an error or ERROR_END_OF_STREAM if not.
     virtual status_t feedMoreTSData() = 0;
 
+    // Returns non-NULL format when the specified track exists.
+    // When the format has "err" set to -EWOULDBLOCK, source needs more time to get valid meta data.
+    // Returns NULL if the specified track doesn't exist or is invalid;
     virtual sp<AMessage> getFormat(bool audio);
+
     virtual sp<MetaData> getFormatMeta(bool /* audio */) { return NULL; }
     virtual sp<MetaData> getFileFormatMeta() const { return NULL; }
 
@@ -104,7 +115,9 @@
         return INVALID_OPERATION;
     }
 
-    virtual status_t seekTo(int64_t /* seekTimeUs */) {
+    virtual status_t seekTo(
+            int64_t /* seekTimeUs */,
+            MediaPlayerSeekMode /* mode */ = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) {
         return INVALID_OPERATION;
     }
 
@@ -122,6 +135,17 @@
 
     virtual void setOffloadAudio(bool /* offload */) {}
 
+    // Modular DRM
+    virtual status_t prepareDrm(
+            const uint8_t /*uuid*/[16], const Vector<uint8_t> &/*drmSessionId*/,
+            sp<ICrypto> */*crypto*/) {
+        return INVALID_OPERATION;
+    }
+
+    virtual status_t releaseDrm() {
+        return INVALID_OPERATION;
+    }
+
 protected:
     virtual ~Source() {}
 
@@ -133,6 +157,8 @@
     void notifyVideoSizeChanged(const sp<AMessage> &format = NULL);
     void notifyInstantiateSecureDecoders(const sp<AMessage> &reply);
     void notifyPrepared(status_t err = OK);
+    // Modular DRM
+    void notifyDrmInfo(const sp<ABuffer> &buffer);
 
 private:
     sp<AMessage> mNotify;
diff --git a/media/libmediaplayerservice/nuplayer/RTSPSource.cpp b/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
index c4e5df7..9264e49 100644
--- a/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
@@ -32,11 +32,11 @@
 
 const int64_t kNearEOSTimeoutUs = 2000000ll; // 2 secs
 
-// Buffer Underflow/Prepare/StartServer/Overflow Marks
-const int64_t NuPlayer::RTSPSource::kUnderflowMarkUs   =  1000000ll;
-const int64_t NuPlayer::RTSPSource::kPrepareMarkUs     =  3000000ll;
-const int64_t NuPlayer::RTSPSource::kStartServerMarkUs =  5000000ll;
-const int64_t NuPlayer::RTSPSource::kOverflowMarkUs    = 10000000ll;
+// Default Buffer Underflow/Prepare/StartServer/Overflow Marks
+static const int kUnderflowMarkMs   =  1000;  // 1 second
+static const int kPrepareMarkMs     =  3000;  // 3 seconds
+//static const int kStartServerMarkMs =  5000;
+static const int kOverflowMarkMs    = 10000;  // 10 seconds
 
 NuPlayer::RTSPSource::RTSPSource(
         const sp<AMessage> &notify,
@@ -62,6 +62,7 @@
       mSeekGeneration(0),
       mEOSTimeoutAudio(0),
       mEOSTimeoutVideo(0) {
+    getDefaultBufferingSettings(&mBufferingSettings);
     if (headers) {
         mExtraHeaders = *headers;
 
@@ -83,6 +84,34 @@
     }
 }
 
+status_t NuPlayer::RTSPSource::getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) {
+    buffering->mInitialBufferingMode = BUFFERING_MODE_TIME_ONLY;
+    buffering->mRebufferingMode = BUFFERING_MODE_TIME_ONLY;
+    buffering->mInitialWatermarkMs = kPrepareMarkMs;
+    buffering->mRebufferingWatermarkLowMs = kUnderflowMarkMs;
+    buffering->mRebufferingWatermarkHighMs = kOverflowMarkMs;
+
+    return OK;
+}
+
+status_t NuPlayer::RTSPSource::setBufferingSettings(const BufferingSettings& buffering) {
+    if (mLooper == NULL) {
+        mBufferingSettings = buffering;
+        return OK;
+    }
+
+    sp<AMessage> msg = new AMessage(kWhatSetBufferingSettings, this);
+    writeToAMessage(msg, buffering);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+    }
+
+    return err;
+}
+
 void NuPlayer::RTSPSource::prepareAsync() {
     if (mIsSDP && mHTTPService == NULL) {
         notifyPrepared(BAD_VALUE);
@@ -258,7 +287,7 @@
 }
 
 status_t NuPlayer::RTSPSource::getDuration(int64_t *durationUs) {
-    *durationUs = 0ll;
+    *durationUs = -1ll;
 
     int64_t audioDurationUs;
     if (mAudioTrack != NULL
@@ -279,10 +308,11 @@
     return OK;
 }
 
-status_t NuPlayer::RTSPSource::seekTo(int64_t seekTimeUs) {
+status_t NuPlayer::RTSPSource::seekTo(int64_t seekTimeUs, MediaPlayerSeekMode mode) {
     sp<AMessage> msg = new AMessage(kWhatPerformSeek, this);
     msg->setInt32("generation", ++mSeekGeneration);
     msg->setInt64("timeUs", seekTimeUs);
+    msg->setInt32("mode", mode);
 
     sp<AMessage> response;
     status_t err = msg->postAndAwaitResponse(&response);
@@ -327,7 +357,8 @@
         int64_t bufferedDurationUs = src->getBufferedDurationUs(&finalResult);
 
         // isFinished when duration is 0 checks for EOS result only
-        if (bufferedDurationUs > kPrepareMarkUs || src->isFinished(/* duration */ 0)) {
+        if (bufferedDurationUs > mBufferingSettings.mInitialWatermarkMs * 1000
+                || src->isFinished(/* duration */ 0)) {
             ++preparedCount;
         }
 
@@ -335,13 +366,16 @@
             ++overflowCount;
             ++finishedCount;
         } else {
-            if (bufferedDurationUs < kUnderflowMarkUs) {
+            if (bufferedDurationUs < mBufferingSettings.mRebufferingWatermarkLowMs * 1000) {
                 ++underflowCount;
             }
-            if (bufferedDurationUs > kOverflowMarkUs) {
+            if (bufferedDurationUs > mBufferingSettings.mRebufferingWatermarkHighMs * 1000) {
                 ++overflowCount;
             }
-            if (bufferedDurationUs < kStartServerMarkUs) {
+            int64_t startServerMarkUs =
+                    (mBufferingSettings.mRebufferingWatermarkLowMs
+                        + mBufferingSettings.mRebufferingWatermarkHighMs) / 2 * 1000ll;
+            if (bufferedDurationUs < startServerMarkUs) {
                 ++startCount;
             }
         }
@@ -465,9 +499,12 @@
         }
 
         int64_t seekTimeUs;
+        int32_t mode;
         CHECK(msg->findInt64("timeUs", &seekTimeUs));
+        CHECK(msg->findInt32("mode", &mode));
 
-        performSeek(seekTimeUs);
+        // TODO: add "mode" to performSeek.
+        performSeek(seekTimeUs/*, (MediaPlayerSeekMode)mode */);
         return;
     } else if (msg->what() == kWhatPollBuffering) {
         onPollBuffering();
@@ -475,6 +512,36 @@
     } else if (msg->what() == kWhatSignalEOS) {
         onSignalEOS(msg);
         return;
+    } else if (msg->what() == kWhatSetBufferingSettings) {
+        sp<AReplyToken> replyID;
+        CHECK(msg->senderAwaitsResponse(&replyID));
+
+        BufferingSettings buffering;
+        readFromAMessage(msg, &buffering);
+
+        status_t err = OK;
+        if (buffering.IsSizeBasedBufferingMode(buffering.mInitialBufferingMode)
+                || buffering.IsSizeBasedBufferingMode(buffering.mRebufferingMode)
+                || (buffering.mRebufferingWatermarkLowMs > buffering.mRebufferingWatermarkHighMs
+                    && buffering.IsTimeBasedBufferingMode(buffering.mRebufferingMode))) {
+            err = BAD_VALUE;
+        } else {
+            if (buffering.mInitialBufferingMode == BUFFERING_MODE_NONE) {
+                buffering.mInitialWatermarkMs = BufferingSettings::kNoWatermark;
+            }
+            if (buffering.mRebufferingMode == BUFFERING_MODE_NONE) {
+                buffering.mRebufferingWatermarkLowMs = BufferingSettings::kNoWatermark;
+                buffering.mRebufferingWatermarkHighMs = INT32_MAX;
+            }
+
+            mBufferingSettings = buffering;
+        }
+
+        sp<AMessage> response = new AMessage;
+        response->setInt32("err", err);
+        response->postReply(replyID);
+
+        return;
     }
 
     CHECK_EQ(msg->what(), (int)kWhatNotify);
diff --git a/media/libmediaplayerservice/nuplayer/RTSPSource.h b/media/libmediaplayerservice/nuplayer/RTSPSource.h
index c7834ef..0812991 100644
--- a/media/libmediaplayerservice/nuplayer/RTSPSource.h
+++ b/media/libmediaplayerservice/nuplayer/RTSPSource.h
@@ -40,6 +40,10 @@
             uid_t uid = 0,
             bool isSDP = false);
 
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) override;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
+
     virtual void prepareAsync();
     virtual void start();
     virtual void stop();
@@ -49,7 +53,9 @@
     virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
 
     virtual status_t getDuration(int64_t *durationUs);
-    virtual status_t seekTo(int64_t seekTimeUs);
+    virtual status_t seekTo(
+            int64_t seekTimeUs,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) override;
 
     void onMessageReceived(const sp<AMessage> &msg);
 
@@ -65,6 +71,7 @@
         kWhatPerformSeek     = 'seek',
         kWhatPollBuffering   = 'poll',
         kWhatSignalEOS       = 'eos ',
+        kWhatSetBufferingSettings = 'sBuS',
     };
 
     enum State {
@@ -79,12 +86,6 @@
         kFlagIncognito = 1,
     };
 
-    // Buffer Prepare/Underflow/Overflow/Resume Marks
-    static const int64_t kPrepareMarkUs;
-    static const int64_t kUnderflowMarkUs;
-    static const int64_t kOverflowMarkUs;
-    static const int64_t kStartServerMarkUs;
-
     struct TrackInfo {
         sp<AnotherPacketSource> mSource;
 
@@ -108,6 +109,7 @@
     bool mBuffering;
     bool mInPreparationPhase;
     bool mEOSPending;
+    BufferingSettings mBufferingSettings;
 
     sp<ALooper> mLooper;
     sp<MyHandler> mHandler;
diff --git a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
index a7c5cf4..fc0803b 100644
--- a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
@@ -51,6 +51,22 @@
     }
 }
 
+status_t NuPlayer::StreamingSource::getDefaultBufferingSettings(
+        BufferingSettings *buffering /* nonnull */) {
+    *buffering = BufferingSettings();
+    return OK;
+}
+
+status_t NuPlayer::StreamingSource::setBufferingSettings(
+        const BufferingSettings &buffering) {
+    if (buffering.mInitialBufferingMode != BUFFERING_MODE_NONE
+            || buffering.mRebufferingMode != BUFFERING_MODE_NONE) {
+        return BAD_VALUE;
+    }
+
+    return OK;
+}
+
 void NuPlayer::StreamingSource::prepareAsync() {
     if (mLooper == NULL) {
         mLooper = new ALooper;
@@ -228,10 +244,13 @@
     }
 
     sp<MetaData> meta = source->getFormat();
+    if (meta == NULL) {
+        format->setInt32("err", -EWOULDBLOCK);
+        return format;
+    }
     status_t err = convertMetaDataToMessage(meta, &format);
     if (err != OK) { // format may have been cleared on error
-        format = new AMessage;
-        format->setInt32("err", err);
+        return NULL;
     }
     return format;
 }
diff --git a/media/libmediaplayerservice/nuplayer/StreamingSource.h b/media/libmediaplayerservice/nuplayer/StreamingSource.h
index db88c7f..2e1d2b3 100644
--- a/media/libmediaplayerservice/nuplayer/StreamingSource.h
+++ b/media/libmediaplayerservice/nuplayer/StreamingSource.h
@@ -32,6 +32,10 @@
             const sp<AMessage> &notify,
             const sp<IStreamSource> &source);
 
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) override;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
+
     virtual void prepareAsync();
     virtual void start();
 
diff --git a/media/libmediaplayerservice/tests/Android.mk b/media/libmediaplayerservice/tests/Android.mk
index ea75a97..dc761ec 100644
--- a/media/libmediaplayerservice/tests/Android.mk
+++ b/media/libmediaplayerservice/tests/Android.mk
@@ -14,13 +14,14 @@
 	libmediaplayerservice \
 	libmediadrm \
 	libutils \
+	android.hidl.base@1.0 \
+	android.hardware.drm@1.0 \
 
 LOCAL_C_INCLUDES := \
 	frameworks/av/include \
 	frameworks/av/media/libmediaplayerservice \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_32_BIT_ONLY := true
 
diff --git a/media/libnbaio/Android.bp b/media/libnbaio/Android.bp
new file mode 100644
index 0000000..f511876
--- /dev/null
+++ b/media/libnbaio/Android.bp
@@ -0,0 +1,41 @@
+cc_library_shared {
+    name: "libnbaio",
+    srcs: [
+        "AudioBufferProviderSource.cpp",
+        "AudioStreamInSource.cpp",
+        "AudioStreamOutSink.cpp",
+        "MonoPipe.cpp",
+        "MonoPipeReader.cpp",
+        "NBAIO.cpp",
+        "NBLog.cpp",
+        "Pipe.cpp",
+        "PipeReader.cpp",
+        "SourceAudioBufferProvider.cpp",
+    ],
+
+    // libsndfile license is incompatible; uncomment to use for local debug only
+    // srcs: [
+    //     "LibsndfileSink.cpp",
+    //     "LibsndfileSource.cpp",
+    // ],
+    // static_libs: ["libsndfile"],
+
+    shared_libs: [
+        "libaudioutils",
+        "libbinder",
+        "libcutils",
+        "libutils",
+        "liblog",
+    ],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+    ],
+
+    include_dirs: ["system/media/audio_utils/include"],
+
+    local_include_dirs: ["include"],
+
+    export_include_dirs: ["include"],
+}
diff --git a/media/libnbaio/Android.mk b/media/libnbaio/Android.mk
deleted file mode 100644
index e2f416b..0000000
--- a/media/libnbaio/Android.mk
+++ /dev/null
@@ -1,36 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
-    AudioBufferProviderSource.cpp   \
-    AudioStreamOutSink.cpp          \
-    AudioStreamInSource.cpp         \
-    NBAIO.cpp                       \
-    MonoPipe.cpp                    \
-    MonoPipeReader.cpp              \
-    Pipe.cpp                        \
-    PipeReader.cpp                  \
-    SourceAudioBufferProvider.cpp
-
-LOCAL_SRC_FILES += NBLog.cpp
-
-# libsndfile license is incompatible; uncomment to use for local debug only
-#LOCAL_SRC_FILES += LibsndfileSink.cpp LibsndfileSource.cpp
-#LOCAL_C_INCLUDES += path/to/libsndfile/src
-#LOCAL_STATIC_LIBRARIES += libsndfile
-
-LOCAL_MODULE := libnbaio
-
-LOCAL_SHARED_LIBRARIES := \
-    libaudioutils \
-    libbinder \
-    libcutils \
-    libutils \
-    liblog
-
-LOCAL_C_INCLUDES := $(call include-path-for, audio-utils)
-
-LOCAL_CFLAGS := -Werror -Wall
-
-include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libnbaio/AudioStreamInSource.cpp b/media/libnbaio/AudioStreamInSource.cpp
index 2dc3050..1054b68 100644
--- a/media/libnbaio/AudioStreamInSource.cpp
+++ b/media/libnbaio/AudioStreamInSource.cpp
@@ -19,33 +19,38 @@
 
 #include <cutils/compiler.h>
 #include <utils/Log.h>
+#include <media/audiohal/StreamHalInterface.h>
 #include <media/nbaio/AudioStreamInSource.h>
 
 namespace android {
 
-AudioStreamInSource::AudioStreamInSource(audio_stream_in *stream) :
+AudioStreamInSource::AudioStreamInSource(sp<StreamInHalInterface> stream) :
         NBAIO_Source(),
         mStream(stream),
         mStreamBufferSizeBytes(0),
         mFramesOverrun(0),
         mOverruns(0)
 {
-    ALOG_ASSERT(stream != NULL);
+    ALOG_ASSERT(stream != 0);
 }
 
 AudioStreamInSource::~AudioStreamInSource()
 {
+    mStream.clear();
 }
 
 ssize_t AudioStreamInSource::negotiate(const NBAIO_Format offers[], size_t numOffers,
                                       NBAIO_Format counterOffers[], size_t& numCounterOffers)
 {
     if (!Format_isValid(mFormat)) {
-        mStreamBufferSizeBytes = mStream->common.get_buffer_size(&mStream->common);
-        audio_format_t streamFormat = mStream->common.get_format(&mStream->common);
-        uint32_t sampleRate = mStream->common.get_sample_rate(&mStream->common);
-        audio_channel_mask_t channelMask =
-                (audio_channel_mask_t) mStream->common.get_channels(&mStream->common);
+        status_t result;
+        result = mStream->getBufferSize(&mStreamBufferSizeBytes);
+        if (result != OK) return result;
+        audio_format_t streamFormat;
+        uint32_t sampleRate;
+        audio_channel_mask_t channelMask;
+        result = mStream->getAudioProperties(&sampleRate, &channelMask, &streamFormat);
+        if (result != OK) return result;
         mFormat = Format_from_SR_C(sampleRate,
                 audio_channel_count_from_in_mask(channelMask), streamFormat);
         mFrameSize = Format_frameSize(mFormat);
@@ -55,11 +60,14 @@
 
 int64_t AudioStreamInSource::framesOverrun()
 {
-    uint32_t framesOverrun = mStream->get_input_frames_lost(mStream);
-    if (framesOverrun > 0) {
+    uint32_t framesOverrun;
+    status_t result = mStream->getInputFramesLost(&framesOverrun);
+    if (result == OK && framesOverrun > 0) {
         mFramesOverrun += framesOverrun;
         // FIXME only increment for contiguous ranges
         ++mOverruns;
+    } else if (result != OK) {
+        ALOGE("Error when retrieving lost frames count from HAL: %d", result);
     }
     return mFramesOverrun;
 }
@@ -69,12 +77,14 @@
     if (CC_UNLIKELY(!Format_isValid(mFormat))) {
         return NEGOTIATE;
     }
-    ssize_t bytesRead = mStream->read(mStream, buffer, count * mFrameSize);
-    if (bytesRead > 0) {
+    size_t bytesRead;
+    status_t result = mStream->read(buffer, count * mFrameSize, &bytesRead);
+    if (result == OK && bytesRead > 0) {
         size_t framesRead = bytesRead / mFrameSize;
         mFramesRead += framesRead;
         return framesRead;
     } else {
+        ALOGE_IF(result != OK, "Error while reading data from HAL: %d", result);
         return bytesRead;
     }
 }
diff --git a/media/libnbaio/AudioStreamOutSink.cpp b/media/libnbaio/AudioStreamOutSink.cpp
index ee44678..cbff87d 100644
--- a/media/libnbaio/AudioStreamOutSink.cpp
+++ b/media/libnbaio/AudioStreamOutSink.cpp
@@ -18,31 +18,36 @@
 //#define LOG_NDEBUG 0
 
 #include <utils/Log.h>
+#include <media/audiohal/StreamHalInterface.h>
 #include <media/nbaio/AudioStreamOutSink.h>
 
 namespace android {
 
-AudioStreamOutSink::AudioStreamOutSink(audio_stream_out *stream) :
+AudioStreamOutSink::AudioStreamOutSink(sp<StreamOutHalInterface> stream) :
         NBAIO_Sink(),
         mStream(stream),
         mStreamBufferSizeBytes(0)
 {
-    ALOG_ASSERT(stream != NULL);
+    ALOG_ASSERT(stream != 0);
 }
 
 AudioStreamOutSink::~AudioStreamOutSink()
 {
+    mStream.clear();
 }
 
 ssize_t AudioStreamOutSink::negotiate(const NBAIO_Format offers[], size_t numOffers,
                                       NBAIO_Format counterOffers[], size_t& numCounterOffers)
 {
     if (!Format_isValid(mFormat)) {
-        mStreamBufferSizeBytes = mStream->common.get_buffer_size(&mStream->common);
-        audio_format_t streamFormat = mStream->common.get_format(&mStream->common);
-        uint32_t sampleRate = mStream->common.get_sample_rate(&mStream->common);
-        audio_channel_mask_t channelMask =
-                (audio_channel_mask_t) mStream->common.get_channels(&mStream->common);
+        status_t result;
+        result = mStream->getBufferSize(&mStreamBufferSizeBytes);
+        if (result != OK) return result;
+        audio_format_t streamFormat;
+        uint32_t sampleRate;
+        audio_channel_mask_t channelMask;
+        result = mStream->getAudioProperties(&sampleRate, &channelMask, &streamFormat);
+        if (result != OK) return result;
         mFormat = Format_from_SR_C(sampleRate,
                 audio_channel_count_from_out_mask(channelMask), streamFormat);
         mFrameSize = Format_frameSize(mFormat);
@@ -56,25 +61,24 @@
         return NEGOTIATE;
     }
     ALOG_ASSERT(Format_isValid(mFormat));
-    ssize_t ret = mStream->write(mStream, buffer, count * mFrameSize);
-    if (ret > 0) {
-        ret /= mFrameSize;
-        mFramesWritten += ret;
+    size_t written;
+    status_t ret = mStream->write(buffer, count * mFrameSize, &written);
+    if (ret == OK && written > 0) {
+        written /= mFrameSize;
+        mFramesWritten += written;
+        return written;
     } else {
         // FIXME verify HAL implementations are returning the correct error codes e.g. WOULD_BLOCK
+        ALOGE_IF(ret != OK, "Error while writing data to HAL: %d", ret);
+        return ret;
     }
-    return ret;
 }
 
 status_t AudioStreamOutSink::getTimestamp(ExtendedTimestamp &timestamp)
 {
-    if (mStream->get_presentation_position == NULL) {
-        return INVALID_OPERATION;
-    }
-
     uint64_t position64;
     struct timespec time;
-    if (mStream->get_presentation_position(mStream, &position64, &time) != OK) {
+    if (mStream->getPresentationPosition(&position64, &time) != OK) {
         return INVALID_OPERATION;
     }
     timestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL] = position64;
diff --git a/media/libnbaio/MonoPipe.cpp b/media/libnbaio/MonoPipe.cpp
index 8d1cb0f..3c5df1a 100644
--- a/media/libnbaio/MonoPipe.cpp
+++ b/media/libnbaio/MonoPipe.cpp
@@ -19,7 +19,6 @@
 #define LOG_TAG "MonoPipe"
 //#define LOG_NDEBUG 0
 
-#include <cutils/atomic.h>
 #include <cutils/compiler.h>
 #include <utils/Log.h>
 #include <utils/Trace.h>
@@ -32,11 +31,11 @@
 
 MonoPipe::MonoPipe(size_t reqFrames, const NBAIO_Format& format, bool writeCanBlock) :
         NBAIO_Sink(format),
-        mReqFrames(reqFrames),
+        // TODO fifo now supports non-power-of-2 buffer sizes, so could remove the roundup
         mMaxFrames(roundup(reqFrames)),
         mBuffer(malloc(mMaxFrames * Format_frameSize(format))),
-        mFront(0),
-        mRear(0),
+        mFifo(mMaxFrames, Format_frameSize(format), mBuffer, true /*throttlesWriter*/),
+        mFifoWriter(mFifo),
         mWriteTsValid(false),
         // mWriteTs
         mSetpoint((reqFrames * 11) / 16),
@@ -53,14 +52,14 @@
     free(mBuffer);
 }
 
-ssize_t MonoPipe::availableToWrite() const
+ssize_t MonoPipe::availableToWrite()
 {
     if (CC_UNLIKELY(!mNegotiated)) {
         return NEGOTIATE;
     }
-    // uses mMaxFrames not mReqFrames, so allows "over-filling" the pipe beyond requested limit
-    ssize_t ret = mMaxFrames - (mRear - android_atomic_acquire_load(&mFront));
-    ALOG_ASSERT((0 <= ret) && (ret <= mMaxFrames));
+    // uses mMaxFrames not reqFrames, so allows "over-filling" the pipe beyond requested limit
+    ssize_t ret = mFifoWriter.available();
+    ALOG_ASSERT(ret <= mMaxFrames);
     return ret;
 }
 
@@ -71,38 +70,33 @@
     }
     size_t totalFramesWritten = 0;
     while (count > 0) {
-        // can't return a negative value, as we already checked for !mNegotiated
-        size_t avail = availableToWrite();
-        size_t written = avail;
-        if (CC_LIKELY(written > count)) {
-            written = count;
-        }
-        size_t rear = mRear & (mMaxFrames - 1);
-        size_t part1 = mMaxFrames - rear;
-        if (part1 > written) {
-            part1 = written;
-        }
-        if (CC_LIKELY(part1 > 0)) {
-            memcpy((char *) mBuffer + (rear * mFrameSize), buffer, part1 * mFrameSize);
-            if (CC_UNLIKELY(rear + part1 == mMaxFrames)) {
-                size_t part2 = written - part1;
-                if (CC_LIKELY(part2 > 0)) {
-                    memcpy(mBuffer, (char *) buffer + (part1 * mFrameSize), part2 * mFrameSize);
-                }
+        ssize_t actual = mFifoWriter.write(buffer, count);
+        ALOG_ASSERT(actual <= count);
+        if (actual < 0) {
+            if (totalFramesWritten == 0) {
+                return actual;
             }
-            android_atomic_release_store(written + mRear, &mRear);
-            totalFramesWritten += written;
+            break;
         }
+        size_t written = (size_t) actual;
+        totalFramesWritten += written;
         if (!mWriteCanBlock || mIsShutdown) {
             break;
         }
         count -= written;
         buffer = (char *) buffer + (written * mFrameSize);
+        // TODO Replace this whole section by audio_util_fifo's setpoint feature.
         // Simulate blocking I/O by sleeping at different rates, depending on a throttle.
         // The throttle tries to keep the mean pipe depth near the setpoint, with a slight jitter.
         uint32_t ns;
         if (written > 0) {
-            size_t filled = (mMaxFrames - avail) + written;
+            ssize_t avail = mFifoWriter.available();
+            ALOG_ASSERT(avail <= mMaxFrames);
+            if (avail < 0) {
+                // don't return avail as status, because totalFramesWritten > 0
+                break;
+            }
+            size_t filled = mMaxFrames - (size_t) avail;
             // FIXME cache these values to avoid re-computation
             if (filled <= mSetpoint / 2) {
                 // pipe is (nearly) empty, fill quickly
diff --git a/media/libnbaio/MonoPipeReader.cpp b/media/libnbaio/MonoPipeReader.cpp
index 01dc524..a9b4d18 100644
--- a/media/libnbaio/MonoPipeReader.cpp
+++ b/media/libnbaio/MonoPipeReader.cpp
@@ -25,7 +25,7 @@
 
 MonoPipeReader::MonoPipeReader(MonoPipe* pipe) :
         NBAIO_Source(pipe->mFormat),
-        mPipe(pipe)
+        mPipe(pipe), mFifoReader(mPipe->mFifo, true /*throttlesWriter*/)
 {
 }
 
@@ -38,38 +38,21 @@
     if (CC_UNLIKELY(!mNegotiated)) {
         return NEGOTIATE;
     }
-    ssize_t ret = android_atomic_acquire_load(&mPipe->mRear) - mPipe->mFront;
-    ALOG_ASSERT((0 <= ret) && ((size_t) ret <= mPipe->mMaxFrames));
+    ssize_t ret = mFifoReader.available();
+    ALOG_ASSERT(ret <= mPipe->mMaxFrames);
     return ret;
 }
 
 ssize_t MonoPipeReader::read(void *buffer, size_t count)
 {
     // count == 0 is unlikely and not worth checking for explicitly; will be handled automatically
-    ssize_t red = availableToRead();
-    if (CC_UNLIKELY(red <= 0)) {
-        return red;
+    ssize_t actual = mFifoReader.read(buffer, count);
+    ALOG_ASSERT(actual <= count);
+    if (CC_UNLIKELY(actual <= 0)) {
+        return actual;
     }
-    if (CC_LIKELY((size_t) red > count)) {
-        red = count;
-    }
-    size_t front = mPipe->mFront & (mPipe->mMaxFrames - 1);
-    size_t part1 = mPipe->mMaxFrames - front;
-    if (part1 > (size_t) red) {
-        part1 = red;
-    }
-    if (CC_LIKELY(part1 > 0)) {
-        memcpy(buffer, (char *) mPipe->mBuffer + (front * mFrameSize), part1 * mFrameSize);
-        if (CC_UNLIKELY(front + part1 == mPipe->mMaxFrames)) {
-            size_t part2 = red - part1;
-            if (CC_LIKELY(part2 > 0)) {
-                memcpy((char *) buffer + (part1 * mFrameSize), mPipe->mBuffer, part2 * mFrameSize);
-            }
-        }
-        android_atomic_release_store(red + mPipe->mFront, &mPipe->mFront);
-        mFramesRead += red;
-    }
-    return red;
+    mFramesRead += (size_t) actual;
+    return actual;
 }
 
 void MonoPipeReader::onTimestamp(const ExtendedTimestamp &timestamp)
diff --git a/media/libnbaio/NBLog.cpp b/media/libnbaio/NBLog.cpp
index 4d14904..de38e7f 100644
--- a/media/libnbaio/NBLog.cpp
+++ b/media/libnbaio/NBLog.cpp
@@ -17,17 +17,21 @@
 #define LOG_TAG "NBLog"
 //#define LOG_NDEBUG 0
 
+#include <climits>
 #include <stdarg.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
+#include <sys/prctl.h>
 #include <time.h>
 #include <new>
-#include <cutils/atomic.h>
+#include <audio_utils/roundup.h>
 #include <media/nbaio/NBLog.h>
 #include <utils/Log.h>
 #include <utils/String8.h>
 
+#include <queue>
+
 namespace android {
 
 int NBLog::Entry::readAt(size_t offset) const
@@ -47,6 +51,144 @@
 
 // ---------------------------------------------------------------------------
 
+NBLog::FormatEntry::FormatEntry(const uint8_t *entry) : mEntry(entry) {
+    ALOGW_IF(entry[offsetof(struct entry, type)] != EVENT_START_FMT,
+        "Created format entry with invalid event type %d", entry[offsetof(struct entry, type)]);
+}
+
+NBLog::FormatEntry::FormatEntry(const NBLog::FormatEntry::iterator &it) : FormatEntry(it.ptr) {}
+
+const char *NBLog::FormatEntry::formatString() const {
+    return (const char*) mEntry + offsetof(entry, data);
+}
+
+size_t NBLog::FormatEntry::formatStringLength() const {
+    return mEntry[offsetof(entry, length)];
+}
+
+NBLog::FormatEntry::iterator NBLog::FormatEntry::args() const {
+    auto it = begin();
+    // skip start fmt
+    ++it;
+    // skip timestamp
+    ++it;
+    // Skip author if present
+    if (it->type == EVENT_AUTHOR) {
+        ++it;
+    }
+    return it;
+}
+
+timespec NBLog::FormatEntry::timestamp() const {
+    auto it = begin();
+    // skip start fmt
+    ++it;
+    return it.payload<timespec>();
+}
+
+pid_t NBLog::FormatEntry::author() const {
+    auto it = begin();
+    // skip start fmt
+    ++it;
+    // skip timestamp
+    ++it;
+    // if there is an author entry, return it, return -1 otherwise
+    if (it->type == EVENT_AUTHOR) {
+        return it.payload<int>();
+    }
+    return -1;
+}
+
+NBLog::FormatEntry::iterator NBLog::FormatEntry::copyWithAuthor(
+        std::unique_ptr<audio_utils_fifo_writer> &dst, int author) const {
+    auto it = begin();
+    // copy fmt start entry
+    it.copyTo(dst);
+    // copy timestamp
+    (++it).copyTo(dst);
+    // insert author entry
+    size_t authorEntrySize = NBLog::Entry::kOverhead + sizeof(author);
+    uint8_t authorEntry[authorEntrySize];
+    authorEntry[offsetof(entry, type)] = EVENT_AUTHOR;
+    authorEntry[offsetof(entry, length)] =
+        authorEntry[authorEntrySize + NBLog::Entry::kPreviousLengthOffset] =
+        sizeof(author);
+    *(int*) (&authorEntry[offsetof(entry, data)]) = author;
+    dst->write(authorEntry, authorEntrySize);
+    // copy rest of entries
+    while ((++it)->type != EVENT_END_FMT) {
+        it.copyTo(dst);
+    }
+    it.copyTo(dst);
+    ++it;
+    return it;
+}
+
+void NBLog::FormatEntry::iterator::copyTo(std::unique_ptr<audio_utils_fifo_writer> &dst) const {
+    size_t length = ptr[offsetof(entry, length)] + NBLog::Entry::kOverhead;
+    dst->write(ptr, length);
+}
+
+void NBLog::FormatEntry::iterator::copyData(uint8_t *dst) const {
+    memcpy((void*) dst, ptr + offsetof(entry, data), ptr[offsetof(entry, length)]);
+}
+
+NBLog::FormatEntry::iterator NBLog::FormatEntry::begin() const {
+    return iterator(mEntry);
+}
+
+NBLog::FormatEntry::iterator::iterator()
+    : ptr(nullptr) {}
+
+NBLog::FormatEntry::iterator::iterator(const uint8_t *entry)
+    : ptr(entry) {}
+
+NBLog::FormatEntry::iterator::iterator(const NBLog::FormatEntry::iterator &other)
+    : ptr(other.ptr) {}
+
+const NBLog::FormatEntry::entry& NBLog::FormatEntry::iterator::operator*() const {
+    return *(entry*) ptr;
+}
+
+const NBLog::FormatEntry::entry* NBLog::FormatEntry::iterator::operator->() const {
+    return (entry*) ptr;
+}
+
+NBLog::FormatEntry::iterator& NBLog::FormatEntry::iterator::operator++() {
+    ptr += ptr[offsetof(entry, length)] + NBLog::Entry::kOverhead;
+    return *this;
+}
+
+NBLog::FormatEntry::iterator& NBLog::FormatEntry::iterator::operator--() {
+    ptr -= ptr[NBLog::Entry::kPreviousLengthOffset] + NBLog::Entry::kOverhead;
+    return *this;
+}
+
+NBLog::FormatEntry::iterator NBLog::FormatEntry::iterator::next() const {
+    iterator aux(*this);
+    return ++aux;
+}
+
+NBLog::FormatEntry::iterator NBLog::FormatEntry::iterator::prev() const {
+    iterator aux(*this);
+    return --aux;
+}
+
+int NBLog::FormatEntry::iterator::operator-(const NBLog::FormatEntry::iterator &other) const {
+    return ptr - other.ptr;
+}
+
+bool NBLog::FormatEntry::iterator::operator!=(const iterator &other) const {
+    return ptr != other.ptr;
+}
+
+bool NBLog::FormatEntry::iterator::hasConsistentLength() const {
+    return ptr[offsetof(entry, length)] == ptr[ptr[offsetof(entry, length)] +
+        NBLog::Entry::kOverhead + NBLog::Entry::kPreviousLengthOffset];
+}
+
+// ---------------------------------------------------------------------------
+
 #if 0   // FIXME see note in NBLog.h
 NBLog::Timeline::Timeline(size_t size, void *shared)
     : mSize(roundup(size)), mOwn(shared == NULL),
@@ -67,25 +209,50 @@
 /*static*/
 size_t NBLog::Timeline::sharedSize(size_t size)
 {
+    // TODO fifo now supports non-power-of-2 buffer sizes, so could remove the roundup
     return sizeof(Shared) + roundup(size);
 }
 
 // ---------------------------------------------------------------------------
 
 NBLog::Writer::Writer()
-    : mSize(0), mShared(NULL), mRear(0), mEnabled(false)
+    : mShared(NULL), mFifo(NULL), mFifoWriter(NULL), mEnabled(false), mPidTag(NULL), mPidTagSize(0)
 {
 }
 
-NBLog::Writer::Writer(size_t size, void *shared)
-    : mSize(roundup(size)), mShared((Shared *) shared), mRear(0), mEnabled(mShared != NULL)
+NBLog::Writer::Writer(void *shared, size_t size)
+    : mShared((Shared *) shared),
+      mFifo(mShared != NULL ?
+        new audio_utils_fifo(size, sizeof(uint8_t),
+            mShared->mBuffer, mShared->mRear, NULL /*throttlesFront*/) : NULL),
+      mFifoWriter(mFifo != NULL ? new audio_utils_fifo_writer(*mFifo) : NULL),
+      mEnabled(mFifoWriter != NULL)
 {
+    // caching pid and process name
+    pid_t id = ::getpid();
+    char procName[16];
+    int status = prctl(PR_GET_NAME, procName);
+    if (status) {  // error getting process name
+        procName[0] = '\0';
+    }
+    size_t length = strlen(procName);
+    mPidTagSize = length + sizeof(pid_t);
+    mPidTag = new char[mPidTagSize];
+    memcpy(mPidTag, &id, sizeof(pid_t));
+    memcpy(mPidTag + sizeof(pid_t), procName, length);
 }
 
-NBLog::Writer::Writer(size_t size, const sp<IMemory>& iMemory)
-    : mSize(roundup(size)), mShared(iMemory != 0 ? (Shared *) iMemory->pointer() : NULL),
-      mIMemory(iMemory), mRear(0), mEnabled(mShared != NULL)
+NBLog::Writer::Writer(const sp<IMemory>& iMemory, size_t size)
+    : Writer(iMemory != 0 ? (Shared *) iMemory->pointer() : NULL, size)
 {
+    mIMemory = iMemory;
+}
+
+NBLog::Writer::~Writer()
+{
+    delete mFifoWriter;
+    delete mFifo;
+    delete[] mPidTag;
 }
 
 void NBLog::Writer::log(const char *string)
@@ -93,9 +260,10 @@
     if (!mEnabled) {
         return;
     }
+    LOG_ALWAYS_FATAL_IF(string == NULL, "Attempted to log NULL string");
     size_t length = strlen(string);
-    if (length > 255) {
-        length = 255;
+    if (length > Entry::kMaxLength) {
+        length = Entry::kMaxLength;
     }
     log(EVENT_STRING, string, length);
 }
@@ -116,7 +284,7 @@
     if (!mEnabled) {
         return;
     }
-    char buffer[256];
+    char buffer[Entry::kMaxLength + 1 /*NUL*/];
     int length = vsnprintf(buffer, sizeof(buffer), fmt, ap);
     if (length >= (int) sizeof(buffer)) {
         length = sizeof(buffer) - 1;
@@ -135,16 +303,130 @@
     }
     struct timespec ts;
     if (!clock_gettime(CLOCK_MONOTONIC, &ts)) {
-        log(EVENT_TIMESTAMP, &ts, sizeof(struct timespec));
+        log(EVENT_TIMESTAMP, &ts, sizeof(ts));
     }
 }
 
-void NBLog::Writer::logTimestamp(const struct timespec& ts)
+void NBLog::Writer::logTimestamp(const struct timespec &ts)
 {
     if (!mEnabled) {
         return;
     }
-    log(EVENT_TIMESTAMP, &ts, sizeof(struct timespec));
+    log(EVENT_TIMESTAMP, &ts, sizeof(ts));
+}
+
+void NBLog::Writer::logInteger(const int x)
+{
+    if (!mEnabled) {
+        return;
+    }
+    log(EVENT_INTEGER, &x, sizeof(x));
+}
+
+void NBLog::Writer::logFloat(const float x)
+{
+    if (!mEnabled) {
+        return;
+    }
+    log(EVENT_FLOAT, &x, sizeof(x));
+}
+
+void NBLog::Writer::logPID()
+{
+    if (!mEnabled) {
+        return;
+    }
+    log(EVENT_PID, mPidTag, mPidTagSize);
+}
+
+void NBLog::Writer::logStart(const char *fmt)
+{
+    if (!mEnabled) {
+        return;
+    }
+    size_t length = strlen(fmt);
+    if (length > Entry::kMaxLength) {
+        length = Entry::kMaxLength;
+    }
+    log(EVENT_START_FMT, fmt, length);
+}
+
+void NBLog::Writer::logEnd()
+{
+    if (!mEnabled) {
+        return;
+    }
+    Entry entry = Entry(EVENT_END_FMT, NULL, 0);
+    log(&entry, true);
+}
+
+void NBLog::Writer::logFormat(const char *fmt, ...)
+{
+    if (!mEnabled) {
+        return;
+    }
+
+    va_list ap;
+    va_start(ap, fmt);
+    Writer::logVFormat(fmt, ap);
+    va_end(ap);
+}
+
+void NBLog::Writer::logVFormat(const char *fmt, va_list argp)
+{
+    if (!mEnabled) {
+        return;
+    }
+    Writer::logStart(fmt);
+    int i;
+    double f;
+    char* s;
+    struct timespec t;
+    Writer::logTimestamp();
+    for (const char *p = fmt; *p != '\0'; p++) {
+        // TODO: implement more complex formatting such as %.3f
+        if (*p != '%') {
+            continue;
+        }
+        switch(*++p) {
+        case 's': // string
+            s = va_arg(argp, char *);
+            Writer::log(s);
+            break;
+
+        case 't': // timestamp
+            t = va_arg(argp, struct timespec);
+            Writer::logTimestamp(t);
+            break;
+
+        case 'd': // integer
+            i = va_arg(argp, int);
+            Writer::logInteger(i);
+            break;
+
+        case 'f': // float
+            f = va_arg(argp, double); // float arguments are promoted to double in vararg lists
+            Writer::logFloat((float)f);
+            break;
+
+        case 'p': // pid
+            Writer::logPID();
+            break;
+
+        // the "%\0" case finishes parsing
+        case '\0':
+            --p;
+            break;
+
+        case '%':
+            break;
+
+        default:
+            ALOGW("NBLog Writer parsed invalid format specifier: %c", *p);
+            break;
+        }
+    }
+    Writer::logEnd();
 }
 
 void NBLog::Writer::log(Event event, const void *data, size_t length)
@@ -152,12 +434,19 @@
     if (!mEnabled) {
         return;
     }
-    if (data == NULL || length > 255) {
+    if (data == NULL || length > Entry::kMaxLength) {
+        // TODO Perhaps it makes sense to display truncated data or at least a
+        //      message that the data is too long?  The current behavior can create
+        //      a confusion for a programmer debugging their code.
         return;
     }
     switch (event) {
     case EVENT_STRING:
     case EVENT_TIMESTAMP:
+    case EVENT_INTEGER:
+    case EVENT_FLOAT:
+    case EVENT_PID:
+    case EVENT_START_FMT:
         break;
     case EVENT_RESERVED:
     default:
@@ -176,26 +465,16 @@
         log(entry->mEvent, entry->mData, entry->mLength);
         return;
     }
-    size_t rear = mRear & (mSize - 1);
-    size_t written = mSize - rear;      // written = number of bytes that have been written so far
-    size_t need = entry->mLength + 3;   // mEvent, mLength, data[length], mLength
-                                        // need = number of bytes remaining to write
-    if (written > need) {
-        written = need;
-    }
-    size_t i;
+    size_t need = entry->mLength + Entry::kOverhead;    // mEvent, mLength, data[length], mLength
+                                                        // need = number of bytes remaining to write
+
     // FIXME optimize this using memcpy for the data part of the Entry.
     // The Entry could have a method copyTo(ptr, offset, size) to optimize the copy.
-    for (i = 0; i < written; ++i) {
-        mShared->mBuffer[rear + i] = entry->readAt(i);
+    uint8_t temp[Entry::kMaxLength + Entry::kOverhead];
+    for (size_t i = 0; i < need; i++) {
+        temp[i] = entry->readAt(i);
     }
-    if (rear + written == mSize && (need -= written) > 0)  {
-        for (i = 0; i < need; ++i) {
-            mShared->mBuffer[i] = entry->readAt(written + i);
-        }
-        written += need;
-    }
-    android_atomic_release_store(mRear += written, &mShared->mRear);
+    mFifoWriter->write(temp, need);
 }
 
 bool NBLog::Writer::isEnabled() const
@@ -217,8 +496,8 @@
 {
 }
 
-NBLog::LockedWriter::LockedWriter(size_t size, void *shared)
-    : Writer(size, shared)
+NBLog::LockedWriter::LockedWriter(void *shared, size_t size)
+    : Writer(shared, size)
 {
 }
 
@@ -252,12 +531,43 @@
     Writer::logTimestamp();
 }
 
-void NBLog::LockedWriter::logTimestamp(const struct timespec& ts)
+void NBLog::LockedWriter::logTimestamp(const struct timespec &ts)
 {
     Mutex::Autolock _l(mLock);
     Writer::logTimestamp(ts);
 }
 
+void NBLog::LockedWriter::logInteger(const int x)
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logInteger(x);
+}
+
+void NBLog::LockedWriter::logFloat(const float x)
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logFloat(x);
+}
+
+void NBLog::LockedWriter::logPID()
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logPID();
+}
+
+void NBLog::LockedWriter::logStart(const char *fmt)
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logStart(fmt);
+}
+
+
+void NBLog::LockedWriter::logEnd()
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logEnd();
+}
+
 bool NBLog::LockedWriter::isEnabled() const
 {
     Mutex::Autolock _l(mLock);
@@ -272,82 +582,144 @@
 
 // ---------------------------------------------------------------------------
 
-NBLog::Reader::Reader(size_t size, const void *shared)
-    : mSize(roundup(size)), mShared((const Shared *) shared), mFront(0)
+NBLog::Reader::Reader(const void *shared, size_t size)
+    : mShared((/*const*/ Shared *) shared), /*mIMemory*/
+      mFd(-1), mIndent(0),
+      mFifo(mShared != NULL ?
+        new audio_utils_fifo(size, sizeof(uint8_t),
+            mShared->mBuffer, mShared->mRear, NULL /*throttlesFront*/) : NULL),
+      mFifoReader(mFifo != NULL ? new audio_utils_fifo_reader(*mFifo) : NULL)
 {
 }
 
-NBLog::Reader::Reader(size_t size, const sp<IMemory>& iMemory)
-    : mSize(roundup(size)), mShared(iMemory != 0 ? (const Shared *) iMemory->pointer() : NULL),
-      mIMemory(iMemory), mFront(0)
+NBLog::Reader::Reader(const sp<IMemory>& iMemory, size_t size)
+    : Reader(iMemory != 0 ? (Shared *) iMemory->pointer() : NULL, size)
 {
+    mIMemory = iMemory;
 }
 
-void NBLog::Reader::dump(int fd, size_t indent)
+NBLog::Reader::~Reader()
 {
-    int32_t rear = android_atomic_acquire_load(&mShared->mRear);
-    size_t avail = rear - mFront;
-    if (avail == 0) {
-        return;
+    delete mFifoReader;
+    delete mFifo;
+}
+
+uint8_t *NBLog::Reader::findLastEntryOfType(uint8_t *front, uint8_t *back, uint8_t type) {
+    while (back + Entry::kPreviousLengthOffset >= front) {
+        uint8_t *prev = back - back[Entry::kPreviousLengthOffset] - Entry::kOverhead;
+        if (prev < front || prev + prev[offsetof(FormatEntry::entry, length)] +
+                            Entry::kOverhead != back) {
+
+            // prev points to an out of limits or inconsistent entry
+            return nullptr;
+        }
+        if (prev[offsetof(FormatEntry::entry, type)] == type) {
+            return prev;
+        }
+        back = prev;
     }
-    size_t lost = 0;
-    if (avail > mSize) {
-        lost = avail - mSize;
-        mFront += lost;
-        avail = mSize;
-    }
-    size_t remaining = avail;       // remaining = number of bytes left to read
-    size_t front = mFront & (mSize - 1);
-    size_t read = mSize - front;    // read = number of bytes that have been read so far
-    if (read > remaining) {
-        read = remaining;
+    return nullptr; // no entry found
+}
+
+std::unique_ptr<NBLog::Reader::Snapshot> NBLog::Reader::getSnapshot()
+{
+    if (mFifoReader == NULL) {
+        return std::unique_ptr<NBLog::Reader::Snapshot>(new Snapshot());
     }
     // make a copy to avoid race condition with writer
-    uint8_t *copy = new uint8_t[avail];
-    // copy first part of circular buffer up until the wraparound point
-    memcpy(copy, &mShared->mBuffer[front], read);
-    if (front + read == mSize) {
-        if ((remaining -= read) > 0) {
-            // copy second part of circular buffer starting at beginning
-            memcpy(&copy[read], mShared->mBuffer, remaining);
-            read += remaining;
-            // remaining = 0 but not necessary
+    size_t capacity = mFifo->capacity();
+
+    // This emulates the behaviour of audio_utils_fifo_reader::read, but without incrementing the
+    // reader index. The index is incremented after handling corruption, to after the last complete
+    // entry of the buffer
+    size_t lost;
+    audio_utils_iovec iovec[2];
+    ssize_t availToRead = mFifoReader->obtain(iovec, capacity, NULL /*timeout*/, &lost);
+    if (availToRead <= 0) {
+        return std::unique_ptr<NBLog::Reader::Snapshot>(new Snapshot());
+    }
+
+    std::unique_ptr<Snapshot> snapshot(new Snapshot(availToRead));
+    memcpy(snapshot->mData, (const char *) mFifo->buffer() + iovec[0].mOffset, iovec[0].mLength);
+    if (iovec[1].mLength > 0) {
+        memcpy(snapshot->mData + (iovec[0].mLength),
+            (const char *) mFifo->buffer() + iovec[1].mOffset, iovec[1].mLength);
+    }
+
+    // Handle corrupted buffer
+    // Potentially, a buffer has corrupted data on both beginning (due to overflow) and end
+    // (due to incomplete format entry). But even if the end format entry is incomplete,
+    // it ends in a complete entry (which is not an END_FMT). So is safe to traverse backwards.
+    // TODO: handle client corruption (in the middle of a buffer)
+
+    uint8_t *back = snapshot->mData + availToRead;
+    uint8_t *front = snapshot->mData;
+
+    // Find last END_FMT. <back> is sitting on an entry which might be the middle of a FormatEntry.
+    // We go backwards until we find an EVENT_END_FMT.
+    uint8_t *lastEnd = findLastEntryOfType(front, back, EVENT_END_FMT);
+    if (lastEnd == nullptr) {
+        snapshot->mEnd = snapshot->mBegin = FormatEntry::iterator(front);
+    } else {
+        // end of snapshot points to after last END_FMT entry
+        snapshot->mEnd = FormatEntry::iterator(lastEnd + Entry::kOverhead);
+        // find first START_FMT
+        uint8_t *firstStart = nullptr;
+        uint8_t *firstStartTmp = lastEnd;
+        while ((firstStartTmp = findLastEntryOfType(front, firstStartTmp, EVENT_START_FMT))
+                != nullptr) {
+            firstStart = firstStartTmp;
+        }
+        // firstStart is null if no START_FMT entry was found before lastEnd
+        if (firstStart == nullptr) {
+            snapshot->mBegin = snapshot->mEnd;
+        } else {
+            snapshot->mBegin = FormatEntry::iterator(firstStart);
         }
     }
-    mFront += read;
-    size_t i = avail;
-    Event event;
-    size_t length;
+
+    // advance fifo reader index to after last entry read.
+    mFifoReader->release(snapshot->mEnd - front);
+
+    snapshot->mLost = lost;
+    return snapshot;
+
+}
+
+void NBLog::Reader::dump(int fd, size_t indent, NBLog::Reader::Snapshot &snapshot)
+{
+#if 0
     struct timespec ts;
     time_t maxSec = -1;
-    while (i >= 3) {
-        length = copy[i - 1];
-        if (length + 3 > i || copy[i - length - 2] != length) {
+    while (entry - start >= (int) Entry::kOverhead) {
+        if (prevEntry - start < 0 || !prevEntry.hasConsistentLength()) {
             break;
         }
-        event = (Event) copy[i - length - 3];
-        if (event == EVENT_TIMESTAMP) {
-            if (length != sizeof(struct timespec)) {
+        if (prevEntry->type == EVENT_TIMESTAMP) {
+            if (prevEntry->length != sizeof(struct timespec)) {
                 // corrupt
                 break;
             }
-            memcpy(&ts, &copy[i - length - 1], sizeof(struct timespec));
+            prevEntry.copyData((uint8_t*) &ts);
             if (ts.tv_sec > maxSec) {
                 maxSec = ts.tv_sec;
             }
         }
-        i -= length + 3;
+        --entry;
+        --prevEntry;
     }
+#endif
     mFd = fd;
     mIndent = indent;
     String8 timestamp, body;
-    lost += i;
+    size_t lost = snapshot.lost() + (snapshot.begin() - FormatEntry::iterator(snapshot.data()));
     if (lost > 0) {
         body.appendFormat("warning: lost %zu bytes worth of events", lost);
         // TODO timestamp empty here, only other choice to wait for the first timestamp event in the
         //      log to push it out.  Consider keeping the timestamp/body between calls to readAt().
         dumpLine(timestamp, body);
     }
+#if 0
     size_t width = 1;
     while (maxSec >= 10) {
         ++width;
@@ -357,30 +729,28 @@
         timestamp.appendFormat("[%*s]", (int) width + 4, "");
     }
     bool deferredTimestamp = false;
-    while (i < avail) {
-        event = (Event) copy[i];
-        length = copy[i + 1];
-        const void *data = &copy[i + 2];
-        size_t advance = length + 3;
-        switch (event) {
+#endif
+    for (auto entry = snapshot.begin(); entry != snapshot.end();) {
+        switch (entry->type) {
+#if 0
         case EVENT_STRING:
-            body.appendFormat("%.*s", (int) length, (const char *) data);
+            body.appendFormat("%.*s", (int) entry.length(), entry.data());
             break;
         case EVENT_TIMESTAMP: {
             // already checked that length == sizeof(struct timespec);
-            memcpy(&ts, data, sizeof(struct timespec));
+            entry.copyData((const uint8_t*) &ts);
             long prevNsec = ts.tv_nsec;
             long deltaMin = LONG_MAX;
             long deltaMax = -1;
             long deltaTotal = 0;
-            size_t j = i;
+            auto aux(entry);
             for (;;) {
-                j += sizeof(struct timespec) + 3;
-                if (j >= avail || (Event) copy[j] != EVENT_TIMESTAMP) {
+                ++aux;
+                if (end - aux >= 0 || aux.type() != EVENT_TIMESTAMP) {
                     break;
                 }
                 struct timespec tsNext;
-                memcpy(&tsNext, &copy[j + 2], sizeof(struct timespec));
+                aux.copyData((const uint8_t*) &tsNext);
                 if (tsNext.tv_sec != ts.tv_sec) {
                     break;
                 }
@@ -397,7 +767,7 @@
                 deltaTotal += delta;
                 prevNsec = tsNext.tv_nsec;
             }
-            size_t n = (j - i) / (sizeof(struct timespec) + 3);
+            size_t n = (aux - entry) / (sizeof(struct timespec) + 3 /*Entry::kOverhead?*/);
             if (deferredTimestamp) {
                 dumpLine(timestamp, body);
                 deferredTimestamp = false;
@@ -408,34 +778,58 @@
                         (int) ts.tv_sec, (int) (ts.tv_nsec / 1000000),
                         (int) ((ts.tv_nsec + deltaTotal) / 1000000),
                         (int) (deltaMin / 1000000), (int) (deltaMax / 1000000));
-                i = j;
-                advance = 0;
+                entry = aux;
+                // advance = 0;
                 break;
             }
             timestamp.appendFormat("[%d.%03d]", (int) ts.tv_sec,
                     (int) (ts.tv_nsec / 1000000));
             deferredTimestamp = true;
-            } break;
+            }
+            break;
+        case EVENT_INTEGER:
+            appendInt(&body, entry.data());
+            break;
+        case EVENT_FLOAT:
+            appendFloat(&body, entry.data());
+            break;
+        case EVENT_PID:
+            appendPID(&body, entry.data(), entry.length());
+            break;
+#endif
+        case EVENT_START_FMT:
+            // right now, this is the only supported case
+            entry = handleFormat(FormatEntry(entry), &timestamp, &body);
+            break;
+        case EVENT_END_FMT:
+            body.appendFormat("warning: got to end format event");
+            ++entry;
+            break;
         case EVENT_RESERVED:
         default:
-            body.appendFormat("warning: unknown event %d", event);
+            body.appendFormat("warning: unexpected event %d", entry->type);
+            ++entry;
             break;
         }
-        i += advance;
 
         if (!body.isEmpty()) {
             dumpLine(timestamp, body);
-            deferredTimestamp = false;
+            // deferredTimestamp = false;
         }
     }
-    if (deferredTimestamp) {
-        dumpLine(timestamp, body);
-    }
-    // FIXME it would be more efficient to put a char mCopy[256] as a member variable of the dumper
-    delete[] copy;
+    // if (deferredTimestamp) {
+    //     dumpLine(timestamp, body);
+    // }
 }
 
-void NBLog::Reader::dumpLine(const String8& timestamp, String8& body)
+void NBLog::Reader::dump(int fd, size_t indent)
+{
+    // get a snapshot, dump it
+    std::unique_ptr<Snapshot> snap = getSnapshot();
+    dump(fd, indent, *snap);
+}
+
+void NBLog::Reader::dumpLine(const String8 &timestamp, String8 &body)
 {
     if (mFd >= 0) {
         dprintf(mFd, "%.*s%s %s\n", mIndent, "", timestamp.string(), body.string());
@@ -450,4 +844,235 @@
     return iMemory != 0 && mIMemory != 0 && iMemory->pointer() == mIMemory->pointer();
 }
 
+void NBLog::appendTimestamp(String8 *body, const void *data) {
+    struct timespec ts;
+    memcpy(&ts, data, sizeof(struct timespec));
+    body->appendFormat("[%d.%03d]", (int) ts.tv_sec,
+                    (int) (ts.tv_nsec / 1000000));
+}
+
+void NBLog::appendInt(String8 *body, const void *data) {
+    int x = *((int*) data);
+    body->appendFormat("<%d>", x);
+}
+
+void NBLog::appendFloat(String8 *body, const void *data) {
+    float f;
+    memcpy(&f, data, sizeof(float));
+    body->appendFormat("<%f>", f);
+}
+
+void NBLog::appendPID(String8 *body, const void* data, size_t length) {
+    pid_t id = *((pid_t*) data);
+    char * name = &((char*) data)[sizeof(pid_t)];
+    body->appendFormat("<PID: %d, name: %.*s>", id, (int) (length - sizeof(pid_t)), name);
+}
+
+NBLog::FormatEntry::iterator NBLog::Reader::handleFormat(const FormatEntry &fmtEntry,
+                                                         String8 *timestamp,
+                                                         String8 *body) {
+    // log timestamp
+    struct timespec ts = fmtEntry.timestamp();
+    timestamp->clear();
+    timestamp->appendFormat("[%d.%03d]", (int) ts.tv_sec,
+                    (int) (ts.tv_nsec / 1000000));
+
+    // log author (if present)
+    handleAuthor(fmtEntry, body);
+
+    // log string
+    NBLog::FormatEntry::iterator arg = fmtEntry.args();
+
+    const char* fmt = fmtEntry.formatString();
+    size_t fmt_length = fmtEntry.formatStringLength();
+
+    for (size_t fmt_offset = 0; fmt_offset < fmt_length; ++fmt_offset) {
+        if (fmt[fmt_offset] != '%') {
+            body->append(&fmt[fmt_offset], 1); // TODO optimize to write consecutive strings at once
+            continue;
+        }
+        // case "%%""
+        if (fmt[++fmt_offset] == '%') {
+            body->append("%");
+            continue;
+        }
+        // case "%\0"
+        if (fmt_offset == fmt_length) {
+            continue;
+        }
+
+        NBLog::Event event = (NBLog::Event) arg->type;
+        size_t length = arg->length;
+
+        // TODO check length for event type is correct
+
+        if (event == EVENT_END_FMT) {
+            break;
+        }
+
+        // TODO: implement more complex formatting such as %.3f
+        const uint8_t *datum = arg->data; // pointer to the current event args
+        switch(fmt[fmt_offset])
+        {
+        case 's': // string
+            ALOGW_IF(event != EVENT_STRING,
+                "NBLog Reader incompatible event for string specifier: %d", event);
+            body->append((const char*) datum, length);
+            break;
+
+        case 't': // timestamp
+            ALOGW_IF(event != EVENT_TIMESTAMP,
+                "NBLog Reader incompatible event for timestamp specifier: %d", event);
+            appendTimestamp(body, datum);
+            break;
+
+        case 'd': // integer
+            ALOGW_IF(event != EVENT_INTEGER,
+                "NBLog Reader incompatible event for integer specifier: %d", event);
+            appendInt(body, datum);
+            break;
+
+        case 'f': // float
+            ALOGW_IF(event != EVENT_FLOAT,
+                "NBLog Reader incompatible event for float specifier: %d", event);
+            appendFloat(body, datum);
+            break;
+
+        case 'p': // pid
+            ALOGW_IF(event != EVENT_PID,
+                "NBLog Reader incompatible event for pid specifier: %d", event);
+            appendPID(body, datum, length);
+            break;
+
+        default:
+            ALOGW("NBLog Reader encountered unknown character %c", fmt[fmt_offset]);
+        }
+        ++arg;
+    }
+    ALOGW_IF(arg->type != EVENT_END_FMT, "Expected end of format, got %d", arg->type);
+    ++arg;
+    return arg;
+}
+
+// ---------------------------------------------------------------------------
+
+NBLog::Merger::Merger(const void *shared, size_t size):
+      mBuffer(NULL),
+      mShared((Shared *) shared),
+      mFifo(mShared != NULL ?
+        new audio_utils_fifo(size, sizeof(uint8_t),
+            mShared->mBuffer, mShared->mRear, NULL /*throttlesFront*/) : NULL),
+      mFifoWriter(mFifo != NULL ? new audio_utils_fifo_writer(*mFifo) : NULL)
+      {}
+
+void NBLog::Merger::addReader(const NBLog::NamedReader &reader) {
+    mNamedReaders.push_back(reader);
+}
+
+// items placed in priority queue during merge
+// composed by a timestamp and the index of the snapshot where the timestamp came from
+struct MergeItem
+{
+    struct timespec ts;
+    int index;
+    MergeItem(struct timespec ts, int index): ts(ts), index(index) {}
+};
+
+// operators needed for priority queue in merge
+bool operator>(const struct timespec &t1, const struct timespec &t2) {
+    return t1.tv_sec > t2.tv_sec || (t1.tv_sec == t2.tv_sec && t1.tv_nsec > t2.tv_nsec);
+}
+
+bool operator>(const struct MergeItem &i1, const struct MergeItem &i2) {
+    return i1.ts > i2.ts ||
+        (i1.ts.tv_sec == i2.ts.tv_sec && i1.ts.tv_nsec == i2.ts.tv_nsec && i1.index > i2.index);
+}
+
+// Merge registered readers, sorted by timestamp
+void NBLog::Merger::merge() {
+    int nLogs = mNamedReaders.size();
+    std::vector<std::unique_ptr<NBLog::Reader::Snapshot>> snapshots(nLogs);
+    std::vector<NBLog::FormatEntry::iterator> offsets(nLogs);
+    for (int i = 0; i < nLogs; ++i) {
+        snapshots[i] = mNamedReaders[i].reader()->getSnapshot();
+        offsets[i] = snapshots[i]->begin();
+    }
+    // initialize offsets
+    // TODO custom heap implementation could allow to update top, improving performance
+    // for bursty buffers
+    std::priority_queue<MergeItem, std::vector<MergeItem>, std::greater<MergeItem>> timestamps;
+    for (int i = 0; i < nLogs; ++i)
+    {
+        if (offsets[i] != snapshots[i]->end()) {
+            timespec ts = FormatEntry(offsets[i]).timestamp();
+            timestamps.emplace(ts, i);
+        }
+    }
+
+    while (!timestamps.empty()) {
+        // find minimum timestamp
+        int index = timestamps.top().index;
+        // copy it to the log, increasing offset
+        offsets[index] = FormatEntry(offsets[index]).copyWithAuthor(mFifoWriter, index);
+        // update data structures
+        timestamps.pop();
+        if (offsets[index] != snapshots[index]->end()) {
+            timespec ts = FormatEntry(offsets[index]).timestamp();
+            timestamps.emplace(ts, index);
+        }
+    }
+}
+
+const std::vector<NBLog::NamedReader> *NBLog::Merger::getNamedReaders() const {
+    return &mNamedReaders;
+}
+
+NBLog::MergeReader::MergeReader(const void *shared, size_t size, Merger &merger)
+    : Reader(shared, size), mNamedReaders(merger.getNamedReaders()) {}
+
+size_t NBLog::MergeReader::handleAuthor(const NBLog::FormatEntry &fmtEntry, String8 *body) {
+    int author = fmtEntry.author();
+    const char* name = (*mNamedReaders)[author].name();
+    body->appendFormat("%s: ", name);
+    return NBLog::Entry::kOverhead + sizeof(author);
+}
+
+NBLog::MergeThread::MergeThread(NBLog::Merger &merger)
+    : mMerger(merger),
+      mTimeoutUs(0) {}
+
+NBLog::MergeThread::~MergeThread() {
+    // set exit flag, set timeout to 0 to force threadLoop to exit and wait for the thread to join
+    requestExit();
+    setTimeoutUs(0);
+    join();
+}
+
+bool NBLog::MergeThread::threadLoop() {
+    bool doMerge;
+    {
+        AutoMutex _l(mMutex);
+        // If mTimeoutUs is negative, wait on the condition variable until it's positive.
+        // If it's positive, wait kThreadSleepPeriodUs and then merge
+        nsecs_t waitTime = mTimeoutUs > 0 ? kThreadSleepPeriodUs * 1000 : LLONG_MAX;
+        mCond.waitRelative(mMutex, waitTime);
+        doMerge = mTimeoutUs > 0;
+        mTimeoutUs -= kThreadSleepPeriodUs;
+    }
+    if (doMerge) {
+        mMerger.merge();
+    }
+    return true;
+}
+
+void NBLog::MergeThread::wakeup() {
+    setTimeoutUs(kThreadWakeupPeriodUs);
+}
+
+void NBLog::MergeThread::setTimeoutUs(int time) {
+    AutoMutex _l(mMutex);
+    mTimeoutUs = time;
+    mCond.signal();
+}
+
 }   // namespace android
diff --git a/media/libnbaio/Pipe.cpp b/media/libnbaio/Pipe.cpp
index 13f211d..39df3f4 100644
--- a/media/libnbaio/Pipe.cpp
+++ b/media/libnbaio/Pipe.cpp
@@ -27,9 +27,11 @@
 
 Pipe::Pipe(size_t maxFrames, const NBAIO_Format& format, void *buffer) :
         NBAIO_Sink(format),
+        // TODO fifo now supports non-power-of-2 buffer sizes, so could remove the roundup
         mMaxFrames(roundup(maxFrames)),
         mBuffer(buffer == NULL ? malloc(mMaxFrames * Format_frameSize(format)) : buffer),
-        mRear(0),
+        mFifo(mMaxFrames, Format_frameSize(format), mBuffer, false /*throttlesWriter*/),
+        mFifoWriter(mFifo),
         mReaders(0),
         mFreeBufferInDestructor(buffer == NULL)
 {
@@ -49,25 +51,13 @@
     if (CC_UNLIKELY(!mNegotiated)) {
         return NEGOTIATE;
     }
-    // write() is not multi-thread safe w.r.t. itself, so no mutex or atomic op needed to read mRear
-    size_t rear = mRear & (mMaxFrames - 1);
-    size_t written = mMaxFrames - rear;
-    if (CC_LIKELY(written > count)) {
-        written = count;
+    ssize_t actual = mFifoWriter.write(buffer, count);
+    ALOG_ASSERT(actual <= count);
+    if (actual <= 0) {
+        return actual;
     }
-    memcpy((char *) mBuffer + (rear * mFrameSize), buffer, written * mFrameSize);
-    if (CC_UNLIKELY(rear + written == mMaxFrames)) {
-        if (CC_UNLIKELY((count -= written) > rear)) {
-            count = rear;
-        }
-        if (CC_LIKELY(count > 0)) {
-            memcpy(mBuffer, (char *) buffer + (written * mFrameSize), count * mFrameSize);
-            written += count;
-        }
-    }
-    android_atomic_release_store(written + mRear, &mRear);
-    mFramesWritten += written;
-    return written;
+    mFramesWritten += (size_t) actual;
+    return actual;
 }
 
 }   // namespace android
diff --git a/media/libnbaio/PipeReader.cpp b/media/libnbaio/PipeReader.cpp
index a879647..2486b76 100644
--- a/media/libnbaio/PipeReader.cpp
+++ b/media/libnbaio/PipeReader.cpp
@@ -18,6 +18,7 @@
 //#define LOG_NDEBUG 0
 
 #include <cutils/compiler.h>
+#include <cutils/atomic.h>
 #include <utils/Log.h>
 #include <media/nbaio/PipeReader.h>
 
@@ -25,9 +26,7 @@
 
 PipeReader::PipeReader(Pipe& pipe) :
         NBAIO_Source(pipe.mFormat),
-        mPipe(pipe),
-        // any data already in the pipe is not visible to this PipeReader
-        mFront(android_atomic_acquire_load(&pipe.mRear)),
+        mPipe(pipe), mFifoReader(mPipe.mFifo, false /*throttlesWriter*/, true /*flush*/),
         mFramesOverrun(0),
         mOverruns(0)
 {
@@ -50,51 +49,50 @@
     if (CC_UNLIKELY(!mNegotiated)) {
         return NEGOTIATE;
     }
-    int32_t rear = android_atomic_acquire_load(&mPipe.mRear);
-    // read() is not multi-thread safe w.r.t. itself, so no mutex or atomic op needed to read mFront
-    size_t avail = rear - mFront;
-    if (CC_UNLIKELY(avail > mPipe.mMaxFrames)) {
-        // Discard 1/16 of the most recent data in pipe to avoid another overrun immediately
-        int32_t oldFront = mFront;
-        mFront = rear - mPipe.mMaxFrames + (mPipe.mMaxFrames >> 4);
-        mFramesOverrun += (size_t) (mFront - oldFront);
+    size_t lost;
+    ssize_t avail = mFifoReader.available(&lost);
+    if (avail == -EOVERFLOW || lost > 0) {
+        mFramesOverrun += lost;
         ++mOverruns;
-        return OVERRUN;
+        avail = OVERRUN;
     }
     return avail;
 }
 
 ssize_t PipeReader::read(void *buffer, size_t count)
 {
-    ssize_t avail = availableToRead();
-    if (CC_UNLIKELY(avail <= 0)) {
-        return avail;
+    size_t lost;
+    ssize_t actual = mFifoReader.read(buffer, count, NULL /*timeout*/, &lost);
+    ALOG_ASSERT(actual <= count);
+    if (actual == -EOVERFLOW || lost > 0) {
+        mFramesOverrun += lost;
+        ++mOverruns;
+        actual = OVERRUN;
     }
-    // An overrun can occur from here on and be silently ignored,
-    // but it will be caught at next read()
-    if (CC_LIKELY(count > (size_t) avail)) {
-        count = avail;
+    if (actual <= 0) {
+        return actual;
     }
-    size_t front = mFront & (mPipe.mMaxFrames - 1);
-    size_t red = mPipe.mMaxFrames - front;
-    if (CC_LIKELY(red > count)) {
-        red = count;
+    mFramesRead += (size_t) actual;
+    return actual;
+}
+
+ssize_t PipeReader::flush()
+{
+    if (CC_UNLIKELY(!mNegotiated)) {
+        return NEGOTIATE;
     }
-    // In particular, an overrun during the memcpy will result in reading corrupt data
-    memcpy(buffer, (char *) mPipe.mBuffer + (front * mFrameSize), red * mFrameSize);
-    // We could re-read the rear pointer here to detect the corruption, but why bother?
-    if (CC_UNLIKELY(front + red == mPipe.mMaxFrames)) {
-        if (CC_UNLIKELY((count -= red) > front)) {
-            count = front;
-        }
-        if (CC_LIKELY(count > 0)) {
-            memcpy((char *) buffer + (red * mFrameSize), mPipe.mBuffer, count * mFrameSize);
-            red += count;
-        }
+    size_t lost;
+    ssize_t flushed = mFifoReader.flush(&lost);
+    if (flushed == -EOVERFLOW || lost > 0) {
+        mFramesOverrun += lost;
+        ++mOverruns;
+        flushed = OVERRUN;
     }
-    mFront += red;
-    mFramesRead += red;
-    return red;
+    if (flushed <= 0) {
+        return flushed;
+    }
+    mFramesRead += (size_t) flushed;  // we consider flushed frames as read, but not lost frames
+    return flushed;
 }
 
 }   // namespace android
diff --git a/include/media/nbaio/AudioBufferProviderSource.h b/media/libnbaio/include/AudioBufferProviderSource.h
similarity index 100%
rename from include/media/nbaio/AudioBufferProviderSource.h
rename to media/libnbaio/include/AudioBufferProviderSource.h
diff --git a/media/libnbaio/include/AudioStreamInSource.h b/media/libnbaio/include/AudioStreamInSource.h
new file mode 100644
index 0000000..508e0fe
--- /dev/null
+++ b/media/libnbaio/include/AudioStreamInSource.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_STREAM_IN_SOURCE_H
+#define ANDROID_AUDIO_STREAM_IN_SOURCE_H
+
+#include "NBAIO.h"
+
+namespace android {
+
+class StreamInHalInterface;
+
+// not multi-thread safe
+class AudioStreamInSource : public NBAIO_Source {
+
+public:
+    AudioStreamInSource(sp<StreamInHalInterface> stream);
+    virtual ~AudioStreamInSource();
+
+    // NBAIO_Port interface
+
+    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Sink interface
+
+    //virtual size_t framesRead() const;
+    virtual int64_t framesOverrun();
+    virtual int64_t overruns() { (void) framesOverrun(); return mOverruns; }
+
+    // This is an over-estimate, and could dupe the caller into making a blocking read()
+    // FIXME Use an audio HAL API to query the buffer filling status when it's available.
+    virtual ssize_t availableToRead() { return mStreamBufferSizeBytes / mFrameSize; }
+
+    virtual ssize_t read(void *buffer, size_t count);
+
+    // NBAIO_Sink end
+
+#if 0   // until necessary
+    sp<StreamInHalInterface> stream() const { return mStream; }
+#endif
+
+private:
+    sp<StreamInHalInterface> mStream;
+    size_t              mStreamBufferSizeBytes; // as reported by get_buffer_size()
+    int64_t             mFramesOverrun;
+    int64_t             mOverruns;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_STREAM_IN_SOURCE_H
diff --git a/media/libnbaio/include/AudioStreamOutSink.h b/media/libnbaio/include/AudioStreamOutSink.h
new file mode 100644
index 0000000..56a2a38
--- /dev/null
+++ b/media/libnbaio/include/AudioStreamOutSink.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_STREAM_OUT_SINK_H
+#define ANDROID_AUDIO_STREAM_OUT_SINK_H
+
+#include "NBAIO.h"
+
+namespace android {
+
+class StreamOutHalInterface;
+
+// not multi-thread safe
+class AudioStreamOutSink : public NBAIO_Sink {
+
+public:
+    AudioStreamOutSink(sp<StreamOutHalInterface> stream);
+    virtual ~AudioStreamOutSink();
+
+    // NBAIO_Port interface
+
+    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format();
+
+    // NBAIO_Sink interface
+
+    //virtual size_t framesWritten() const;
+    //virtual size_t framesUnderrun() const;
+    //virtual size_t underruns() const;
+
+    // This is an over-estimate, and could dupe the caller into making a blocking write()
+    // FIXME Use an audio HAL API to query the buffer emptying status when it's available.
+    virtual ssize_t availableToWrite() { return mStreamBufferSizeBytes / mFrameSize; }
+
+    virtual ssize_t write(const void *buffer, size_t count);
+
+    virtual status_t getTimestamp(ExtendedTimestamp &timestamp);
+
+    // NBAIO_Sink end
+
+#if 0   // until necessary
+    sp<StreamOutHalInterface> stream() const { return mStream; }
+#endif
+
+private:
+    sp<StreamOutHalInterface> mStream;
+    size_t              mStreamBufferSizeBytes; // as reported by get_buffer_size()
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_STREAM_OUT_SINK_H
diff --git a/media/libnbaio/include/LibsndfileSink.h b/media/libnbaio/include/LibsndfileSink.h
new file mode 100644
index 0000000..97a57e0
--- /dev/null
+++ b/media/libnbaio/include/LibsndfileSink.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_LIBSNDFILE_SINK_H
+#define ANDROID_AUDIO_LIBSNDFILE_SINK_H
+
+#include "NBAIO.h"
+#include "sndfile.h"
+
+// Implementation of NBAIO_Sink that wraps a libsndfile opened in SFM_WRITE mode
+
+namespace android {
+
+class LibsndfileSink : public NBAIO_Sink {
+
+public:
+    LibsndfileSink(SNDFILE *sndfile, const SF_INFO &sfinfo);
+    virtual ~LibsndfileSink();
+
+    // NBAIO_Port interface
+
+    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Sink interface
+
+    //virtual size_t framesWritten() const;
+    //virtual size_t framesUnderrun() const;
+    //virtual size_t underruns() const;
+    //virtual ssize_t availableToWrite();
+    virtual ssize_t write(const void *buffer, size_t count);
+    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
+
+private:
+    SNDFILE *                   mSndfile;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_LIBSNDFILE_SINK_H
diff --git a/include/media/nbaio/LibsndfileSource.h b/media/libnbaio/include/LibsndfileSource.h
similarity index 100%
rename from include/media/nbaio/LibsndfileSource.h
rename to media/libnbaio/include/LibsndfileSource.h
diff --git a/media/libnbaio/include/MonoPipe.h b/media/libnbaio/include/MonoPipe.h
new file mode 100644
index 0000000..60ae92e
--- /dev/null
+++ b/media/libnbaio/include/MonoPipe.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_MONO_PIPE_H
+#define ANDROID_AUDIO_MONO_PIPE_H
+
+#include <time.h>
+#include <audio_utils/fifo.h>
+#include <media/SingleStateQueue.h>
+#include "NBAIO.h"
+
+namespace android {
+
+typedef SingleStateQueue<ExtendedTimestamp> ExtendedTimestampSingleStateQueue;
+
+// MonoPipe is similar to Pipe except:
+//  - supports only a single reader, called MonoPipeReader
+//  - write() cannot overrun; instead it will return a short actual count if insufficient space
+//  - write() can optionally block if the pipe is full
+// Like Pipe, it is not multi-thread safe for either writer or reader
+// but writer and reader can be different threads.
+class MonoPipe : public NBAIO_Sink {
+
+    friend class MonoPipeReader;
+
+public:
+    // reqFrames will be rounded up to a power of 2, and all slots are available. Must be >= 2.
+    // Note: whatever shares this object with another thread needs to do so in an SMP-safe way (like
+    // creating it the object before creating the other thread, or storing the object with a
+    // release_store). Otherwise the other thread could see a partially-constructed object.
+    MonoPipe(size_t reqFrames, const NBAIO_Format& format, bool writeCanBlock = false);
+    virtual ~MonoPipe();
+
+    // NBAIO_Port interface
+
+    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Sink interface
+
+    //virtual int64_t framesWritten() const;
+    //virtual int64_t framesUnderrun() const;
+    //virtual int64_t underruns() const;
+
+    // returns n where 0 <= n <= mMaxFrames, or a negative status_t
+    // including the private status codes in NBAIO.h
+    virtual ssize_t availableToWrite();
+
+    virtual ssize_t write(const void *buffer, size_t count);
+    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
+
+            // average number of frames present in the pipe under normal conditions.
+            // See throttling mechanism in MonoPipe::write()
+            size_t  getAvgFrames() const { return mSetpoint; }
+            void    setAvgFrames(size_t setpoint);
+            size_t  maxFrames() const { return mMaxFrames; }
+
+            // Set the shutdown state for the write side of a pipe.
+            // This may be called by an unrelated thread.  When shutdown state is 'true',
+            // a write that would otherwise block instead returns a short transfer count.
+            // There is no guarantee how long it will take for the shutdown to be recognized,
+            // but it will not be an unbounded amount of time.
+            // The state can be restored to normal by calling shutdown(false).
+            void    shutdown(bool newState = true);
+
+            // Return true if the write side of a pipe is currently shutdown.
+            bool    isShutdown();
+
+            // Return NO_ERROR if there is a timestamp available
+            status_t getTimestamp(ExtendedTimestamp &timestamp);
+
+private:
+    const size_t    mMaxFrames;     // as requested in constructor, rounded up to a power of 2
+    void * const    mBuffer;
+    audio_utils_fifo        mFifo;
+    audio_utils_fifo_writer mFifoWriter;
+    bool            mWriteTsValid;  // whether mWriteTs is valid
+    struct timespec mWriteTs;       // time that the previous write() completed
+    size_t          mSetpoint;      // target value for pipe fill depth
+    const bool      mWriteCanBlock; // whether write() should block if the pipe is full
+
+    bool            mIsShutdown;    // whether shutdown(true) was called, no barriers are needed
+
+    ExtendedTimestampSingleStateQueue::Shared      mTimestampShared;
+    ExtendedTimestampSingleStateQueue::Mutator     mTimestampMutator;
+    ExtendedTimestampSingleStateQueue::Observer    mTimestampObserver;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_MONO_PIPE_H
diff --git a/media/libnbaio/include/MonoPipeReader.h b/media/libnbaio/include/MonoPipeReader.h
new file mode 100644
index 0000000..0776ecd
--- /dev/null
+++ b/media/libnbaio/include/MonoPipeReader.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_MONO_PIPE_READER_H
+#define ANDROID_AUDIO_MONO_PIPE_READER_H
+
+#include "MonoPipe.h"
+
+namespace android {
+
+// MonoPipeReader is safe for only a single reader thread
+class MonoPipeReader : public NBAIO_Source {
+
+public:
+
+    // Construct a MonoPipeReader and associate it with a MonoPipe;
+    // any data already in the pipe is visible to this MonoPipeReader.
+    // There can be only a single MonoPipeReader per MonoPipe.
+    // FIXME make this constructor a factory method of MonoPipe.
+    MonoPipeReader(MonoPipe* pipe);
+    virtual ~MonoPipeReader();
+
+    // NBAIO_Port interface
+
+    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Source interface
+
+    //virtual size_t framesRead() const;
+    //virtual size_t framesOverrun();
+    //virtual size_t overruns();
+
+    virtual ssize_t availableToRead();
+
+    virtual ssize_t read(void *buffer, size_t count);
+
+    virtual void    onTimestamp(const ExtendedTimestamp &timestamp);
+
+    // NBAIO_Source end
+
+#if 0   // until necessary
+    MonoPipe* pipe() const { return mPipe; }
+#endif
+
+private:
+    MonoPipe * const mPipe;
+    audio_utils_fifo_reader mFifoReader;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_MONO_PIPE_READER_H
diff --git a/media/libnbaio/include/NBAIO.h b/media/libnbaio/include/NBAIO.h
new file mode 100644
index 0000000..f8ec38b
--- /dev/null
+++ b/media/libnbaio/include/NBAIO.h
@@ -0,0 +1,334 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_NBAIO_H
+#define ANDROID_AUDIO_NBAIO_H
+
+// Non-blocking audio I/O interface
+//
+// This header file has the abstract interfaces only.  Concrete implementation classes are declared
+// elsewhere.  Implementations _should_ be non-blocking for all methods, especially read() and
+// write(), but this is not enforced.  In general, implementations do not need to be multi-thread
+// safe, and any exceptions are noted in the particular implementation.
+
+#include <limits.h>
+#include <stdlib.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <media/AudioTimestamp.h>
+#include <system/audio.h>
+
+namespace android {
+
+// In addition to the usual status_t
+enum {
+    NEGOTIATE    = (UNKNOWN_ERROR + 0x100),  // Must (re-)negotiate format.  For negotiate() only,
+                                             // the offeree doesn't accept offers, and proposes
+                                             // counter-offers
+    OVERRUN      = (UNKNOWN_ERROR + 0x101),  // availableToRead(), read(), or readVia() detected
+                                             // lost input due to overrun; an event is counted and
+                                             // the caller should re-try
+    UNDERRUN     = (UNKNOWN_ERROR + 0x102),  // availableToWrite(), write(), or writeVia() detected
+                                             // a gap in output due to underrun (not being called
+                                             // often enough, or with enough data); an event is
+                                             // counted and the caller should re-try
+};
+
+// Negotiation of format is based on the data provider and data sink, or the data consumer and
+// data source, exchanging prioritized arrays of offers and counter-offers until a single offer is
+// mutually agreed upon.  Each offer is an NBAIO_Format.  For simplicity and performance,
+// NBAIO_Format is a typedef that ties together the most important combinations of the various
+// attributes, rather than a struct with separate fields for format, sample rate, channel count,
+// interleave, packing, alignment, etc.  The reason is that NBAIO_Format tries to abstract out only
+// the combinations that are actually needed within AudioFlinger.  If the list of combinations grows
+// too large, then this decision should be re-visited.
+// Sample rate and channel count are explicit, PCM interleaved 16-bit is assumed.
+struct NBAIO_Format {
+// FIXME make this a class, and change Format_... global methods to class methods
+//private:
+    unsigned    mSampleRate;
+    unsigned    mChannelCount;
+    audio_format_t  mFormat;
+    size_t      mFrameSize;
+};
+
+extern const NBAIO_Format Format_Invalid;
+
+// Return the frame size of an NBAIO_Format in bytes
+size_t Format_frameSize(const NBAIO_Format& format);
+
+// Convert a sample rate in Hz and channel count to an NBAIO_Format
+// FIXME rename
+NBAIO_Format Format_from_SR_C(unsigned sampleRate, unsigned channelCount, audio_format_t format);
+
+// Return the sample rate in Hz of an NBAIO_Format
+unsigned Format_sampleRate(const NBAIO_Format& format);
+
+// Return the channel count of an NBAIO_Format
+unsigned Format_channelCount(const NBAIO_Format& format);
+
+// Callbacks used by NBAIO_Sink::writeVia() and NBAIO_Source::readVia() below.
+typedef ssize_t (*writeVia_t)(void *user, void *buffer, size_t count);
+typedef ssize_t (*readVia_t)(void *user, const void *buffer, size_t count);
+
+// Check whether an NBAIO_Format is valid
+bool Format_isValid(const NBAIO_Format& format);
+
+// Compare two NBAIO_Format values
+bool Format_isEqual(const NBAIO_Format& format1, const NBAIO_Format& format2);
+
+// Abstract class (interface) representing a data port.
+class NBAIO_Port : public RefBase {
+
+public:
+
+    // negotiate() must called first.  The purpose of negotiate() is to check compatibility of
+    // formats, not to automatically adapt if they are incompatible.  It's the responsibility of
+    // whoever sets up the graph connections to make sure formats are compatible, and this method
+    // just verifies that.  The edges are "dumb" and don't attempt to adapt to bad connections.
+    // How it works: offerer proposes an array of formats, in descending order of preference from
+    // offers[0] to offers[numOffers - 1].  If offeree accepts one of these formats, it returns
+    // the index of that offer.  Otherwise, offeree sets numCounterOffers to the number of
+    // counter-offers (up to a maximumum of the entry value of numCounterOffers), fills in the
+    // provided array counterOffers[] with its counter-offers, in descending order of preference
+    // from counterOffers[0] to counterOffers[numCounterOffers - 1], and returns NEGOTIATE.
+    // Note that since the offerer allocates space for counter-offers, but only the offeree knows
+    // how many counter-offers it has, there may be insufficient space for all counter-offers.
+    // In that case, the offeree sets numCounterOffers to the requested number of counter-offers
+    // (which is greater than the entry value of numCounterOffers), fills in as many of the most
+    // important counterOffers as will fit, and returns NEGOTIATE.  As this implies a re-allocation,
+    // it should be used as a last resort.  It is preferable for the offerer to simply allocate a
+    // larger space to begin with, and/or for the offeree to tolerate a smaller space than desired.
+    // Alternatively, the offerer can pass NULL for offers and counterOffers, and zero for
+    // numOffers. This indicates that it has not allocated space for any counter-offers yet.
+    // In this case, the offerree should set numCounterOffers appropriately and return NEGOTIATE.
+    // Then the offerer will allocate the correct amount of memory and retry.
+    // Format_Invalid is not allowed as either an offer or counter-offer.
+    // Returns:
+    //  >= 0        Offer accepted.
+    //  NEGOTIATE   No offer accepted, and counter-offer(s) optionally made. See above for details.
+    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
+
+    // Return the current negotiated format, or Format_Invalid if negotiation has not been done,
+    // or if re-negotiation is required.
+    virtual NBAIO_Format format() const { return mNegotiated ? mFormat : Format_Invalid; }
+
+protected:
+    NBAIO_Port(const NBAIO_Format& format) : mNegotiated(false), mFormat(format),
+                                             mFrameSize(Format_frameSize(format)) { }
+    virtual ~NBAIO_Port() { }
+
+    // Implementations are free to ignore these if they don't need them
+
+    bool            mNegotiated;    // mNegotiated implies (mFormat != Format_Invalid)
+    NBAIO_Format    mFormat;        // (mFormat != Format_Invalid) does not imply mNegotiated
+    size_t          mFrameSize;     // assign in parallel with any assignment to mFormat
+};
+
+// Abstract class (interface) representing a non-blocking data sink, for use by a data provider.
+class NBAIO_Sink : public NBAIO_Port {
+
+public:
+
+    // For the next two APIs:
+    // 32 bits rolls over after 27 hours at 44.1 kHz; if that concerns you then poll periodically.
+
+    // Return the number of frames written successfully since construction.
+    virtual int64_t framesWritten() const { return mFramesWritten; }
+
+    // Number of frames lost due to underrun since construction.
+    virtual int64_t framesUnderrun() const { return 0; }
+
+    // Number of underruns since construction, where a set of contiguous lost frames is one event.
+    virtual int64_t underruns() const { return 0; }
+
+    // Estimate of number of frames that could be written successfully now without blocking.
+    // When a write() is actually attempted, the implementation is permitted to return a smaller or
+    // larger transfer count, however it will make a good faith effort to give an accurate estimate.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
+    //              An underrun event is counted, and the caller should re-try this operation.
+    //  WOULD_BLOCK Determining how many frames can be written without blocking would itself block.
+    virtual ssize_t availableToWrite() {
+        if (!mNegotiated) {
+            return NEGOTIATE;
+        }
+        return SSIZE_MAX;
+    }
+
+    // Transfer data to sink from single input buffer.  Implies a copy.
+    // Inputs:
+    //  buffer  Non-NULL buffer owned by provider.
+    //  count   Maximum number of frames to transfer.
+    // Return value:
+    //  > 0     Number of frames successfully transferred prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  WOULD_BLOCK No frames can be transferred without blocking.
+    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
+    //              An underrun event is counted, and the caller should re-try this operation.
+    virtual ssize_t write(const void *buffer, size_t count) = 0;
+
+    // Transfer data to sink using a series of callbacks.  More suitable for zero-fill, synthesis,
+    // and non-contiguous transfers (e.g. circular buffer or writev).
+    // Inputs:
+    //  via     Callback function that the sink will call as many times as needed to consume data.
+    //  total   Estimate of the number of frames the provider has available.  This is an estimate,
+    //          and it can provide a different number of frames during the series of callbacks.
+    //  user    Arbitrary void * reserved for data provider.
+    //  block   Number of frames per block, that is a suggested value for 'count' in each callback.
+    //          Zero means no preference.  This parameter is a hint only, and may be ignored.
+    // Return value:
+    //  > 0     Total number of frames successfully transferred prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  WOULD_BLOCK No frames can be transferred without blocking.
+    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
+    //              An underrun event is counted, and the caller should re-try this operation.
+    //
+    // The 'via' callback is called by the data sink as follows:
+    // Inputs:
+    //  user    Arbitrary void * reserved for data provider.
+    //  buffer  Non-NULL buffer owned by sink that callback should fill in with data,
+    //          up to a maximum of 'count' frames.
+    //  count   Maximum number of frames to transfer during this callback.
+    // Return value:
+    //  > 0     Number of frames successfully transferred during this callback prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer during this callback.
+    virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block = 0);
+
+    // Returns NO_ERROR if a timestamp is available.  The timestamp includes the total number
+    // of frames presented to an external observer, together with the value of CLOCK_MONOTONIC
+    // as of this presentation count.  The timestamp parameter is undefined if error is returned.
+    virtual status_t getTimestamp(ExtendedTimestamp& /*timestamp*/) { return INVALID_OPERATION; }
+
+protected:
+    NBAIO_Sink(const NBAIO_Format& format = Format_Invalid) : NBAIO_Port(format), mFramesWritten(0)
+            { }
+    virtual ~NBAIO_Sink() { }
+
+    // Implementations are free to ignore these if they don't need them
+    int64_t  mFramesWritten;
+};
+
+// Abstract class (interface) representing a non-blocking data source, for use by a data consumer.
+class NBAIO_Source : public NBAIO_Port {
+
+public:
+
+    // For the next two APIs:
+    // 32 bits rolls over after 27 hours at 44.1 kHz; if that concerns you then poll periodically.
+
+    // Number of frames read successfully since construction.
+    virtual int64_t framesRead() const { return mFramesRead; }
+
+    // Number of frames lost due to overrun since construction.
+    // Not const because implementations may need to do I/O.
+    virtual int64_t framesOverrun() /*const*/ { return 0; }
+
+    // Number of overruns since construction, where a set of contiguous lost frames is one event.
+    // Not const because implementations may need to do I/O.
+    virtual int64_t overruns() /*const*/ { return 0; }
+
+    // Estimate of number of frames that could be read successfully now.
+    // When a read() is actually attempted, the implementation is permitted to return a smaller or
+    // larger transfer count, however it will make a good faith effort to give an accurate estimate.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  OVERRUN     One or more frames were lost due to overrun, try again to read more recent data.
+    //  WOULD_BLOCK Determining how many frames can be read without blocking would itself block.
+    virtual ssize_t availableToRead() { return SSIZE_MAX; }
+
+    // Transfer data from source into single destination buffer.  Implies a copy.
+    // Inputs:
+    //  buffer  Non-NULL destination buffer owned by consumer.
+    //  count   Maximum number of frames to transfer.
+    // Return value:
+    //  > 0     Number of frames successfully transferred prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  WOULD_BLOCK No frames can be transferred without blocking.
+    //  OVERRUN     read() has not been called frequently enough, or with enough frames to keep up.
+    //              One or more frames were lost due to overrun, try again to read more recent data.
+    virtual ssize_t read(void *buffer, size_t count) = 0;
+
+    // Flush data from buffer.  There is no notion of overrun as all data is dropped.
+    // Flushed frames also count towards frames read.
+    //
+    // Return value:
+    //  >= 0    Number of frames successfully flushed
+    //  < 0     status_t error occurred
+    // Errors:
+    //  NEGOTIATE         (Re-)negotiation is needed.
+    //  INVALID_OPERATION Not implemented
+    virtual ssize_t flush() { return INVALID_OPERATION; }
+
+    // Transfer data from source using a series of callbacks.  More suitable for zero-fill,
+    // synthesis, and non-contiguous transfers (e.g. circular buffer or readv).
+    // Inputs:
+    //  via     Callback function that the source will call as many times as needed to provide data.
+    //  total   Estimate of the number of frames the consumer desires.  This is an estimate,
+    //          and it can consume a different number of frames during the series of callbacks.
+    //  user    Arbitrary void * reserved for data consumer.
+    //  block   Number of frames per block, that is a suggested value for 'count' in each callback.
+    //          Zero means no preference.  This parameter is a hint only, and may be ignored.
+    // Return value:
+    //  > 0     Total number of frames successfully transferred prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  WOULD_BLOCK No frames can be transferred without blocking.
+    //  OVERRUN     read() has not been called frequently enough, or with enough frames to keep up.
+    //              One or more frames were lost due to overrun, try again to read more recent data.
+    //
+    // The 'via' callback is called by the data source as follows:
+    // Inputs:
+    //  user    Arbitrary void * reserved for data consumer.
+    //  dest    Non-NULL buffer owned by source that callback should consume data from,
+    //          up to a maximum of 'count' frames.
+    //  count   Maximum number of frames to transfer during this callback.
+    // Return value:
+    //  > 0     Number of frames successfully transferred during this callback prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer during this callback.
+    virtual ssize_t readVia(readVia_t via, size_t total, void *user, size_t block = 0);
+
+    // Invoked asynchronously by corresponding sink when a new timestamp is available.
+    // Default implementation ignores the timestamp.
+    virtual void    onTimestamp(const ExtendedTimestamp& /*timestamp*/) { }
+
+protected:
+    NBAIO_Source(const NBAIO_Format& format = Format_Invalid) : NBAIO_Port(format), mFramesRead(0)
+            { }
+    virtual ~NBAIO_Source() { }
+
+    // Implementations are free to ignore these if they don't need them
+    int64_t  mFramesRead;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_NBAIO_H
diff --git a/media/libnbaio/include/NBLog.h b/media/libnbaio/include/NBLog.h
new file mode 100644
index 0000000..59b77bd
--- /dev/null
+++ b/media/libnbaio/include/NBLog.h
@@ -0,0 +1,484 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Non-blocking event logger intended for safe communication between processes via shared memory
+
+#ifndef ANDROID_MEDIA_NBLOG_H
+#define ANDROID_MEDIA_NBLOG_H
+
+#include <binder/IMemory.h>
+#include <audio_utils/fifo.h>
+#include <utils/Mutex.h>
+#include <utils/threads.h>
+
+#include <vector>
+
+namespace android {
+
+class String8;
+
+class NBLog {
+
+public:
+
+class Writer;
+class Reader;
+
+private:
+
+enum Event {
+    EVENT_RESERVED,
+    EVENT_STRING,               // ASCII string, not NUL-terminated
+    // TODO: make timestamp optional
+    EVENT_TIMESTAMP,            // clock_gettime(CLOCK_MONOTONIC)
+    EVENT_INTEGER,              // integer value entry
+    EVENT_FLOAT,                // floating point value entry
+    EVENT_PID,                  // process ID and process name
+    EVENT_AUTHOR,               // author index (present in merged logs) tracks entry's original log
+    EVENT_START_FMT,            // logFormat start event: entry includes format string, following
+                                // entries contain format arguments
+    EVENT_END_FMT,              // end of logFormat argument list
+};
+
+
+// ---------------------------------------------------------------------------
+// API for handling format entry operations
+
+// a formatted entry has the following structure:
+//    * START_FMT entry, containing the format string
+//    * TIMESTAMP entry
+//    * author entry of the thread that generated it (optional, present in merged log)
+//    * format arg1
+//    * format arg2
+//    * ...
+//    * END_FMT entry
+
+class FormatEntry {
+public:
+    // build a Format Entry starting in the given pointer
+    class iterator;
+    explicit FormatEntry(const uint8_t *entry);
+    explicit FormatEntry(const iterator &it);
+
+    // entry representation in memory
+    struct entry {
+        const uint8_t type;
+        const uint8_t length;
+        const uint8_t data[0];
+    };
+
+    // entry tail representation (after data)
+    struct ending {
+        uint8_t length;
+        uint8_t next[0];
+    };
+
+    // entry iterator
+    class iterator {
+    public:
+        iterator();
+        iterator(const uint8_t *entry);
+        iterator(const iterator &other);
+
+        // dereference underlying entry
+        const entry&    operator*() const;
+        const entry*    operator->() const;
+        // advance to next entry
+        iterator&       operator++(); // ++i
+        // back to previous entry
+        iterator&       operator--(); // --i
+        iterator        next() const;
+        iterator        prev() const;
+        bool            operator!=(const iterator &other) const;
+        int             operator-(const iterator &other) const;
+
+        bool            hasConsistentLength() const;
+        void            copyTo(std::unique_ptr<audio_utils_fifo_writer> &dst) const;
+        void            copyData(uint8_t *dst) const;
+
+        template<typename T>
+        inline const T& payload() {
+            return *reinterpret_cast<const T *>(ptr + offsetof(entry, data));
+        }
+
+    private:
+        friend class FormatEntry;
+        const uint8_t  *ptr;
+    };
+
+    // Entry's format string
+    const char* formatString() const;
+
+    // Enrty's format string length
+    size_t      formatStringLength() const;
+
+    // Format arguments (excluding format string, timestamp and author)
+    iterator    args() const;
+
+    // get format entry timestamp
+    timespec    timestamp() const;
+
+    // entry's author index (-1 if none present)
+    // a Merger has a vector of Readers, author simply points to the index of the
+    // Reader that originated the entry
+    int         author() const;
+
+    // copy entry, adding author before timestamp, returns size of original entry
+    iterator    copyWithAuthor(std::unique_ptr<audio_utils_fifo_writer> &dst, int author) const;
+
+    iterator    begin() const;
+
+private:
+    // copies ordinary entry from src to dst, and returns length of entry
+    // size_t      copyEntry(audio_utils_fifo_writer *dst, const iterator &it);
+    const uint8_t  *mEntry;
+};
+
+// ---------------------------------------------------------------------------
+
+// representation of a single log entry in private memory
+struct Entry {
+    Entry(Event event, const void *data, size_t length)
+        : mEvent(event), mLength(length), mData(data) { }
+    /*virtual*/ ~Entry() { }
+
+    int     readAt(size_t offset) const;
+
+private:
+    friend class Writer;
+    Event       mEvent;     // event type
+    uint8_t     mLength;    // length of additional data, 0 <= mLength <= kMaxLength
+    const void *mData;      // event type-specific data
+    static const size_t kMaxLength = 255;
+public:
+    // mEvent, mLength, mData[...], duplicate mLength
+    static const size_t kOverhead = sizeof(FormatEntry::entry) + sizeof(FormatEntry::ending);
+    // endind length of previous entry
+    static const size_t kPreviousLengthOffset = - sizeof(FormatEntry::ending) +
+                                                offsetof(FormatEntry::ending, length);
+};
+
+// representation of a single log entry in shared memory
+//  byte[0]             mEvent
+//  byte[1]             mLength
+//  byte[2]             mData[0]
+//  ...
+//  byte[2+i]           mData[i]
+//  ...
+//  byte[2+mLength-1]   mData[mLength-1]
+//  byte[2+mLength]     duplicate copy of mLength to permit reverse scan
+//  byte[3+mLength]     start of next log entry
+
+    static void    appendInt(String8 *body, const void *data);
+    static void    appendFloat(String8 *body, const void *data);
+    static void    appendPID(String8 *body, const void *data, size_t length);
+    static void    appendTimestamp(String8 *body, const void *data);
+    static size_t  fmtEntryLength(const uint8_t *data);
+
+public:
+
+// Located in shared memory, must be POD.
+// Exactly one process must explicitly call the constructor or use placement new.
+// Since this is a POD, the destructor is empty and unnecessary to call it explicitly.
+struct Shared {
+    Shared() /* mRear initialized via default constructor */ { }
+    /*virtual*/ ~Shared() { }
+
+    audio_utils_fifo_index  mRear;  // index one byte past the end of most recent Entry
+    char    mBuffer[0];             // circular buffer for entries
+};
+
+public:
+
+// ---------------------------------------------------------------------------
+
+// FIXME Timeline was intended to wrap Writer and Reader, but isn't actually used yet.
+// For now it is just a namespace for sharedSize().
+class Timeline : public RefBase {
+public:
+#if 0
+    Timeline(size_t size, void *shared = NULL);
+    virtual ~Timeline();
+#endif
+
+    // Input parameter 'size' is the desired size of the timeline in byte units.
+    // Returns the size rounded up to a power-of-2, plus the constant size overhead for indices.
+    static size_t sharedSize(size_t size);
+
+#if 0
+private:
+    friend class    Writer;
+    friend class    Reader;
+
+    const size_t    mSize;      // circular buffer size in bytes, must be a power of 2
+    bool            mOwn;       // whether I own the memory at mShared
+    Shared* const   mShared;    // pointer to shared memory
+#endif
+};
+
+// ---------------------------------------------------------------------------
+
+// Writer is thread-safe with respect to Reader, but not with respect to multiple threads
+// calling Writer methods.  If you need multi-thread safety for writing, use LockedWriter.
+class Writer : public RefBase {
+public:
+    Writer();                   // dummy nop implementation without shared memory
+
+    // Input parameter 'size' is the desired size of the timeline in byte units.
+    // The size of the shared memory must be at least Timeline::sharedSize(size).
+    Writer(void *shared, size_t size);
+    Writer(const sp<IMemory>& iMemory, size_t size);
+
+    virtual ~Writer();
+
+    virtual void    log(const char *string);
+    virtual void    logf(const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
+    virtual void    logvf(const char *fmt, va_list ap);
+    virtual void    logTimestamp();
+    virtual void    logTimestamp(const struct timespec &ts);
+    virtual void    logInteger(const int x);
+    virtual void    logFloat(const float x);
+    virtual void    logPID();
+    virtual void    logFormat(const char *fmt, ...);
+    virtual void    logVFormat(const char *fmt, va_list ap);
+    virtual void    logStart(const char *fmt);
+    virtual void    logEnd();
+
+
+    virtual bool    isEnabled() const;
+
+    // return value for all of these is the previous isEnabled()
+    virtual bool    setEnabled(bool enabled);   // but won't enable if no shared memory
+            bool    enable()    { return setEnabled(true); }
+            bool    disable()   { return setEnabled(false); }
+
+    sp<IMemory>     getIMemory() const  { return mIMemory; }
+
+private:
+    // 0 <= length <= kMaxLength
+    void    log(Event event, const void *data, size_t length);
+    void    log(const Entry *entry, bool trusted = false);
+
+    Shared* const   mShared;    // raw pointer to shared memory
+    sp<IMemory>     mIMemory;   // ref-counted version, initialized in constructor and then const
+    audio_utils_fifo * const mFifo;                 // FIFO itself,
+                                                    // non-NULL unless constructor fails
+    audio_utils_fifo_writer * const mFifoWriter;    // used to write to FIFO,
+                                                    // non-NULL unless dummy constructor used
+    bool            mEnabled;   // whether to actually log
+
+    // cached pid and process name to use in %p format specifier
+    // total tag length is mPidTagSize and process name is not zero terminated
+    char   *mPidTag;
+    size_t  mPidTagSize;
+};
+
+// ---------------------------------------------------------------------------
+
+// Similar to Writer, but safe for multiple threads to call concurrently
+class LockedWriter : public Writer {
+public:
+    LockedWriter();
+    LockedWriter(void *shared, size_t size);
+
+    virtual void    log(const char *string);
+    virtual void    logf(const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
+    virtual void    logvf(const char *fmt, va_list ap);
+    virtual void    logTimestamp();
+    virtual void    logTimestamp(const struct timespec &ts);
+    virtual void    logInteger(const int x);
+    virtual void    logFloat(const float x);
+    virtual void    logPID();
+    virtual void    logStart(const char *fmt);
+    virtual void    logEnd();
+
+    virtual bool    isEnabled() const;
+    virtual bool    setEnabled(bool enabled);
+
+private:
+    mutable Mutex   mLock;
+};
+
+// ---------------------------------------------------------------------------
+
+class Reader : public RefBase {
+public:
+
+    // A snapshot of a readers buffer
+    class Snapshot {
+    public:
+        Snapshot() : mData(NULL), mLost(0) {}
+
+        Snapshot(size_t bufferSize) : mData(new uint8_t[bufferSize]) {}
+
+        ~Snapshot() { delete[] mData; }
+
+        // copy of the buffer
+        uint8_t *data() const { return mData; }
+
+        // amount of data lost (given by audio_utils_fifo_reader)
+        size_t   lost() const { return mLost; }
+
+        // iterator to beginning of readable segment of snapshot
+        // data between begin and end has valid entries
+        FormatEntry::iterator begin() { return mBegin; }
+
+        // iterator to end of readable segment of snapshot
+        FormatEntry::iterator end() { return mEnd; }
+
+
+    private:
+        friend class Reader;
+        uint8_t              *mData;
+        size_t                mLost;
+        FormatEntry::iterator mBegin;
+        FormatEntry::iterator mEnd;
+    };
+
+    // Input parameter 'size' is the desired size of the timeline in byte units.
+    // The size of the shared memory must be at least Timeline::sharedSize(size).
+    Reader(const void *shared, size_t size);
+    Reader(const sp<IMemory>& iMemory, size_t size);
+
+    virtual ~Reader();
+
+    // get snapshot of readers fifo buffer, effectively consuming the buffer
+    std::unique_ptr<Snapshot> getSnapshot();
+    // dump a particular snapshot of the reader
+    void     dump(int fd, size_t indent, Snapshot & snap);
+    // dump the current content of the reader's buffer
+    void     dump(int fd, size_t indent = 0);
+    bool     isIMemory(const sp<IMemory>& iMemory) const;
+
+private:
+    /*const*/ Shared* const mShared;    // raw pointer to shared memory, actually const but not
+                                        // declared as const because audio_utils_fifo() constructor
+    sp<IMemory> mIMemory;       // ref-counted version, assigned only in constructor
+    int     mFd;                // file descriptor
+    int     mIndent;            // indentation level
+    audio_utils_fifo * const mFifo;                 // FIFO itself,
+                                                    // non-NULL unless constructor fails
+    audio_utils_fifo_reader * const mFifoReader;    // used to read from FIFO,
+                                                    // non-NULL unless constructor fails
+
+    void    dumpLine(const String8& timestamp, String8& body);
+
+    FormatEntry::iterator   handleFormat(const FormatEntry &fmtEntry,
+                                         String8 *timestamp,
+                                         String8 *body);
+    // dummy method for handling absent author entry
+    virtual size_t handleAuthor(const FormatEntry &fmtEntry, String8 *body) { return 0; }
+
+    // Searches for the last entry of type <type> in the range [front, back)
+    // back has to be entry-aligned. Returns nullptr if none enconuntered.
+    static uint8_t *findLastEntryOfType(uint8_t *front, uint8_t *back, uint8_t type);
+
+    static const size_t kSquashTimestamp = 5; // squash this many or more adjacent timestamps
+};
+
+// Wrapper for a reader with a name. Contains a pointer to the reader and a pointer to the name
+class NamedReader {
+public:
+    NamedReader() { mName[0] = '\0'; } // for Vector
+    NamedReader(const sp<NBLog::Reader>& reader, const char *name) :
+        mReader(reader)
+        { strlcpy(mName, name, sizeof(mName)); }
+    ~NamedReader() { }
+    const sp<NBLog::Reader>&  reader() const { return mReader; }
+    const char*               name() const { return mName; }
+
+private:
+    sp<NBLog::Reader>   mReader;
+    static const size_t kMaxName = 32;
+    char                mName[kMaxName];
+};
+
+// ---------------------------------------------------------------------------
+
+class Merger : public RefBase {
+public:
+    Merger(const void *shared, size_t size);
+
+    virtual ~Merger() {}
+
+    void addReader(const NamedReader &reader);
+    // TODO add removeReader
+    void merge();
+    const std::vector<NamedReader> *getNamedReaders() const;
+private:
+    // vector of the readers the merger is supposed to merge from.
+    // every reader reads from a writer's buffer
+    std::vector<NamedReader> mNamedReaders;
+    uint8_t *mBuffer;
+    Shared * const mShared;
+    std::unique_ptr<audio_utils_fifo> mFifo;
+    std::unique_ptr<audio_utils_fifo_writer> mFifoWriter;
+
+    static struct timespec getTimestamp(const uint8_t *data);
+};
+
+class MergeReader : public Reader {
+public:
+    MergeReader(const void *shared, size_t size, Merger &merger);
+private:
+    const std::vector<NamedReader> *mNamedReaders;
+    // handle author entry by looking up the author's name and appending it to the body
+    // returns number of bytes read from fmtEntry
+    size_t handleAuthor(const FormatEntry &fmtEntry, String8 *body);
+};
+
+// MergeThread is a thread that contains a Merger. It works as a retriggerable one-shot:
+// when triggered, it awakes for a lapse of time, during which it periodically merges; if
+// retriggered, the timeout is reset.
+// The thread is triggered on AudioFlinger binder activity.
+class MergeThread : public Thread {
+public:
+    MergeThread(Merger &merger);
+    virtual ~MergeThread() override;
+
+    // Reset timeout and activate thread to merge periodically if it's idle
+    void wakeup();
+
+    // Set timeout period until the merging thread goes idle again
+    void setTimeoutUs(int time);
+
+private:
+    virtual bool threadLoop() override;
+
+    // the merger who actually does the work of merging the logs
+    Merger&     mMerger;
+
+    // mutex for the condition variable
+    Mutex       mMutex;
+
+    // condition variable to activate merging on timeout >= 0
+    Condition   mCond;
+
+    // time left until the thread blocks again (in microseconds)
+    int         mTimeoutUs;
+
+    // merging period when the thread is awake
+    static const int  kThreadSleepPeriodUs = 1000000 /*1s*/;
+
+    // initial timeout value when triggered
+    static const int  kThreadWakeupPeriodUs = 3000000 /*3s*/;
+};
+
+};  // class NBLog
+
+}   // namespace android
+
+#endif  // ANDROID_MEDIA_NBLOG_H
diff --git a/media/libnbaio/include/Pipe.h b/media/libnbaio/include/Pipe.h
new file mode 100644
index 0000000..58b9750
--- /dev/null
+++ b/media/libnbaio/include/Pipe.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_PIPE_H
+#define ANDROID_AUDIO_PIPE_H
+
+#include <audio_utils/fifo.h>
+#include "NBAIO.h"
+
+namespace android {
+
+// Pipe is multi-thread safe for readers (see PipeReader), but safe for only a single writer thread.
+// It cannot UNDERRUN on write, unless we allow designation of a master reader that provides the
+// time-base. Readers can be added and removed dynamically, and it's OK to have no readers.
+class Pipe : public NBAIO_Sink {
+
+    friend class PipeReader;
+
+public:
+    // maxFrames will be rounded up to a power of 2, and all slots are available. Must be >= 2.
+    // buffer is an optional parameter specifying the virtual address of the pipe buffer,
+    // which must be of size roundup(maxFrames) * Format_frameSize(format) bytes.
+    Pipe(size_t maxFrames, const NBAIO_Format& format, void *buffer = NULL);
+
+    // If a buffer was specified in the constructor, it is not automatically freed by destructor.
+    virtual ~Pipe();
+
+    // NBAIO_Port interface
+
+    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Sink interface
+
+    //virtual int64_t framesWritten() const;
+    //virtual int64_t framesUnderrun() const;
+    //virtual int64_t underruns() const;
+
+    // The write side of a pipe permits overruns; flow control is the caller's responsibility.
+    // It doesn't return +infinity because that would guarantee an overrun.
+    virtual ssize_t availableToWrite() { return mMaxFrames; }
+
+    virtual ssize_t write(const void *buffer, size_t count);
+    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
+
+private:
+    const size_t    mMaxFrames;     // always a power of 2
+    void * const    mBuffer;
+    audio_utils_fifo        mFifo;
+    audio_utils_fifo_writer mFifoWriter;
+    volatile int32_t mReaders;      // number of PipeReader clients currently attached to this Pipe
+    const bool      mFreeBufferInDestructor;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_PIPE_H
diff --git a/media/libnbaio/include/PipeReader.h b/media/libnbaio/include/PipeReader.h
new file mode 100644
index 0000000..70ecb34
--- /dev/null
+++ b/media/libnbaio/include/PipeReader.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_PIPE_READER_H
+#define ANDROID_AUDIO_PIPE_READER_H
+
+#include "Pipe.h"
+
+namespace android {
+
+// PipeReader is safe for only a single thread
+class PipeReader : public NBAIO_Source {
+
+public:
+
+    // Construct a PipeReader and associate it with a Pipe
+    // FIXME make this constructor a factory method of Pipe.
+    PipeReader(Pipe& pipe);
+    virtual ~PipeReader();
+
+    // NBAIO_Port interface
+
+    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Source interface
+
+    //virtual size_t framesRead() const;
+    virtual int64_t framesOverrun() { return mFramesOverrun; }
+    virtual int64_t overruns()  { return mOverruns; }
+
+    virtual ssize_t availableToRead();
+
+    virtual ssize_t read(void *buffer, size_t count);
+
+    virtual ssize_t flush();
+
+    // NBAIO_Source end
+
+#if 0   // until necessary
+    Pipe& pipe() const { return mPipe; }
+#endif
+
+private:
+    Pipe&       mPipe;
+    audio_utils_fifo_reader mFifoReader;
+    int64_t     mFramesOverrun;
+    int64_t     mOverruns;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_PIPE_READER_H
diff --git a/include/media/nbaio/SourceAudioBufferProvider.h b/media/libnbaio/include/SourceAudioBufferProvider.h
similarity index 100%
rename from include/media/nbaio/SourceAudioBufferProvider.h
rename to media/libnbaio/include/SourceAudioBufferProvider.h
diff --git a/media/libstagefright/ACodec.cpp b/media/libstagefright/ACodec.cpp
index 37fd5a5..9f1be22 100644
--- a/media/libstagefright/ACodec.cpp
+++ b/media/libstagefright/ACodec.cpp
@@ -44,6 +44,10 @@
 #include <media/stagefright/PersistentSurface.h>
 #include <media/stagefright/SurfaceUtils.h>
 #include <media/hardware/HardwareAPI.h>
+#include <media/OMXBuffer.h>
+#include <media/omx/1.0/WOmxNode.h>
+
+#include <hidlmemory/mapping.h>
 
 #include <OMX_AudioExt.h>
 #include <OMX_VideoExt.h>
@@ -52,11 +56,19 @@
 #include <OMX_AsString.h>
 
 #include "include/avc_utils.h"
+#include "include/ACodecBufferChannel.h"
 #include "include/DataConverter.h"
+#include "include/SecureBuffer.h"
+#include "include/SharedMemoryBuffer.h"
 #include "omx/OMXUtils.h"
 
+#include <android/hidl/allocator/1.0/IAllocator.h>
+#include <android/hidl/memory/1.0/IMemory.h>
+
 namespace android {
 
+using binder::Status;
+
 enum {
     kMaxIndicesToCheck = 32, // used when enumerating supported formats and profiles
 };
@@ -90,6 +102,21 @@
     }
 }
 
+static inline status_t statusFromBinderStatus(const Status &status) {
+    if (status.isOk()) {
+        return OK;
+    }
+    status_t err;
+    if ((err = status.serviceSpecificErrorCode()) != OK) {
+        return err;
+    }
+    if ((err = status.transactionError()) != OK) {
+        return err;
+    }
+    // Other exception
+    return UNKNOWN_ERROR;
+}
+
 // checks and converts status_t to a non-side-effect status_t
 static inline status_t makeNoSideEffectStatus(status_t err) {
     switch (err) {
@@ -136,15 +163,10 @@
         }
 
         sp<AMessage> notify = mNotify->dup();
-        bool first = true;
         sp<MessageList> msgList = new MessageList();
         for (std::list<omx_message>::const_iterator it = messages.cbegin();
               it != messages.cend(); ++it) {
             const omx_message &omx_msg = *it;
-            if (first) {
-                notify->setInt32("node", omx_msg.node);
-                first = false;
-            }
 
             sp<AMessage> msg = new AMessage;
             msg->setInt32("type", omx_msg.type);
@@ -216,7 +238,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct ACodec::BaseState : public AState {
-    BaseState(ACodec *codec, const sp<AState> &parentState = NULL);
+    explicit BaseState(ACodec *codec, const sp<AState> &parentState = NULL);
 
 protected:
     enum PortMode {
@@ -229,6 +251,7 @@
 
     virtual PortMode getPortMode(OMX_U32 portIndex);
 
+    virtual void stateExited();
     virtual bool onMessageReceived(const sp<AMessage> &msg);
 
     virtual bool onOMXEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2);
@@ -266,8 +289,10 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-struct ACodec::DeathNotifier : public IBinder::DeathRecipient {
-    DeathNotifier(const sp<AMessage> &notify)
+struct ACodec::DeathNotifier :
+        public IBinder::DeathRecipient,
+        public ::android::hardware::hidl_death_recipient {
+    explicit DeathNotifier(const sp<AMessage> &notify)
         : mNotify(notify) {
     }
 
@@ -275,6 +300,12 @@
         mNotify->post();
     }
 
+    virtual void serviceDied(
+            uint64_t /* cookie */,
+            const wp<::android::hidl::base::V1_0::IBase>& /* who */) {
+        mNotify->post();
+    }
+
 protected:
     virtual ~DeathNotifier() {}
 
@@ -285,7 +316,7 @@
 };
 
 struct ACodec::UninitializedState : public ACodec::BaseState {
-    UninitializedState(ACodec *codec);
+    explicit UninitializedState(ACodec *codec);
 
 protected:
     virtual bool onMessageReceived(const sp<AMessage> &msg);
@@ -303,7 +334,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct ACodec::LoadedState : public ACodec::BaseState {
-    LoadedState(ACodec *codec);
+    explicit LoadedState(ACodec *codec);
 
 protected:
     virtual bool onMessageReceived(const sp<AMessage> &msg);
@@ -326,7 +357,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct ACodec::LoadedToIdleState : public ACodec::BaseState {
-    LoadedToIdleState(ACodec *codec);
+    explicit LoadedToIdleState(ACodec *codec);
 
 protected:
     virtual bool onMessageReceived(const sp<AMessage> &msg);
@@ -342,7 +373,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct ACodec::IdleToExecutingState : public ACodec::BaseState {
-    IdleToExecutingState(ACodec *codec);
+    explicit IdleToExecutingState(ACodec *codec);
 
 protected:
     virtual bool onMessageReceived(const sp<AMessage> &msg);
@@ -356,7 +387,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct ACodec::ExecutingState : public ACodec::BaseState {
-    ExecutingState(ACodec *codec);
+    explicit ExecutingState(ACodec *codec);
 
     void submitRegularOutputBuffers();
     void submitOutputMetaBuffers();
@@ -386,7 +417,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct ACodec::OutputPortSettingsChangedState : public ACodec::BaseState {
-    OutputPortSettingsChangedState(ACodec *codec);
+    explicit OutputPortSettingsChangedState(ACodec *codec);
 
 protected:
     virtual PortMode getPortMode(OMX_U32 portIndex);
@@ -403,7 +434,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct ACodec::ExecutingToIdleState : public ACodec::BaseState {
-    ExecutingToIdleState(ACodec *codec);
+    explicit ExecutingToIdleState(ACodec *codec);
 
 protected:
     virtual bool onMessageReceived(const sp<AMessage> &msg);
@@ -425,7 +456,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct ACodec::IdleToLoadedState : public ACodec::BaseState {
-    IdleToLoadedState(ACodec *codec);
+    explicit IdleToLoadedState(ACodec *codec);
 
 protected:
     virtual bool onMessageReceived(const sp<AMessage> &msg);
@@ -440,7 +471,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 struct ACodec::FlushingState : public ACodec::BaseState {
-    FlushingState(ACodec *codec);
+    explicit FlushingState(ACodec *codec);
 
 protected:
     virtual bool onMessageReceived(const sp<AMessage> &msg);
@@ -494,8 +525,8 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 ACodec::ACodec()
-    : mQuirks(0),
-      mNode(0),
+    : mSampleRate(0),
+      mNodeGeneration(0),
       mUsingNativeWindow(false),
       mNativeWindowUsageBits(0),
       mLastNativeWindowDataSpace(HAL_DATASPACE_UNKNOWN),
@@ -511,20 +542,20 @@
       mChannelMaskPresent(false),
       mChannelMask(0),
       mDequeueCounter(0),
-      mInputMetadataType(kMetadataBufferTypeInvalid),
-      mOutputMetadataType(kMetadataBufferTypeInvalid),
-      mLegacyAdaptiveExperiment(false),
       mMetadataBuffersToSubmit(0),
       mNumUndequeuedBuffers(0),
       mRepeatFrameDelayUs(-1ll),
       mMaxPtsGapUs(-1ll),
       mMaxFps(-1),
-      mTimePerFrameUs(-1ll),
-      mTimePerCaptureUs(-1ll),
+      mFps(-1.0),
+      mCaptureFps(-1.0),
       mCreateInputBuffersSuspended(false),
+      mLatency(0),
       mTunneled(false),
       mDescribeColorAspectsIndex((OMX_INDEXTYPE)0),
-      mDescribeHDRStaticInfoIndex((OMX_INDEXTYPE)0) {
+      mDescribeHDRStaticInfoIndex((OMX_INDEXTYPE)0),
+      mStateGeneration(0),
+      mVendorExtensionsStatus(kExtensionsUnchecked) {
     mUninitializedState = new UninitializedState(this);
     mLoadedState = new LoadedState(this);
     mLoadedToIdleState = new LoadedToIdleState(this);
@@ -541,24 +572,34 @@
     mPortEOS[kPortIndexInput] = mPortEOS[kPortIndexOutput] = false;
     mInputEOSResult = OK;
 
+    mPortMode[kPortIndexInput] = IOMX::kPortModePresetByteBuffer;
+    mPortMode[kPortIndexOutput] = IOMX::kPortModePresetByteBuffer;
+
     memset(&mLastNativeWindowCrop, 0, sizeof(mLastNativeWindowCrop));
 
     changeState(mUninitializedState);
+
+    mTrebleFlag = false;
 }
 
 ACodec::~ACodec() {
 }
 
-void ACodec::setNotificationMessage(const sp<AMessage> &msg) {
-    mNotify = msg;
-}
-
 void ACodec::initiateSetup(const sp<AMessage> &msg) {
     msg->setWhat(kWhatSetup);
     msg->setTarget(this);
     msg->post();
 }
 
+std::shared_ptr<BufferChannelBase> ACodec::getBufferChannel() {
+    if (!mBufferChannel) {
+        mBufferChannel = std::make_shared<ACodecBufferChannel>(
+                new AMessage(kWhatInputBufferFilled, this),
+                new AMessage(kWhatOutputBufferDrained, this));
+    }
+    return mBufferChannel;
+}
+
 void ACodec::signalSetParameters(const sp<AMessage> &params) {
     sp<AMessage> msg = new AMessage(kWhatSetParameters, this);
     msg->setMessage("params", params);
@@ -676,8 +717,7 @@
     int usageBits = 0;
     // no need to reconnect as we will not dequeue all buffers
     status_t err = setupNativeWindowSizeFormatAndUsage(
-            nativeWindow, &usageBits,
-            !storingMetadataInDecodedBuffers() || mLegacyAdaptiveExperiment /* reconnect */);
+            nativeWindow, &usageBits, !storingMetadataInDecodedBuffers());
     if (err != OK) {
         return err;
     }
@@ -727,7 +767,6 @@
         const BufferInfo &info = buffers[i];
         // skip undequeued buffers for meta data mode
         if (storingMetadataInDecodedBuffers()
-                && !mLegacyAdaptiveExperiment
                 && info.mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW) {
             ALOGV("skipping buffer");
             continue;
@@ -744,7 +783,7 @@
     }
 
     // cancel undequeued buffers to new surface
-    if (!storingMetadataInDecodedBuffers() || mLegacyAdaptiveExperiment) {
+    if (!storingMetadataInDecodedBuffers()) {
         for (size_t i = 0; i < buffers.size(); ++i) {
             BufferInfo &info = buffers.editItemAt(i);
             if (info.mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW) {
@@ -774,10 +813,29 @@
     return OK;
 }
 
+status_t ACodec::setPortMode(int32_t portIndex, IOMX::PortMode mode) {
+    status_t err = mOMXNode->setPortMode(portIndex, mode);
+    if (err != OK) {
+        ALOGE("[%s] setPortMode on %s to %s failed w/ err %d",
+                mComponentName.c_str(),
+                portIndex == kPortIndexInput ? "input" : "output",
+                asString(mode),
+                err);
+        return err;
+    }
+
+    mPortMode[portIndex] = mode;
+    return OK;
+}
+
 status_t ACodec::allocateBuffersOnPort(OMX_U32 portIndex) {
     CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
 
-    CHECK(mDealer[portIndex] == NULL);
+    if (getTrebleFlag()) {
+        CHECK(mAllocator[portIndex] == NULL);
+    } else {
+        CHECK(mDealer[portIndex] == NULL);
+    }
     CHECK(mBuffers[portIndex].isEmpty());
 
     status_t err;
@@ -792,30 +850,21 @@
         InitOMXParams(&def);
         def.nPortIndex = portIndex;
 
-        err = mOMX->getParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->getParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
 
         if (err == OK) {
-            MetadataBufferType type =
-                portIndex == kPortIndexOutput ? mOutputMetadataType : mInputMetadataType;
+            const IOMX::PortMode &mode = mPortMode[portIndex];
             size_t bufSize = def.nBufferSize;
-            if (type == kMetadataBufferTypeANWBuffer) {
+            // Always allocate VideoNativeMetadata if using ANWBuffer.
+            // OMX might use gralloc source internally, but we don't share
+            // metadata buffer with OMX, OMX has its own headers.
+            if (mode == IOMX::kPortModeDynamicANWBuffer) {
                 bufSize = sizeof(VideoNativeMetadata);
-            } else if (type == kMetadataBufferTypeNativeHandleSource) {
+            } else if (mode == IOMX::kPortModeDynamicNativeHandle) {
                 bufSize = sizeof(VideoNativeHandleMetadata);
             }
 
-            // If using gralloc or native source input metadata buffers, allocate largest
-            // metadata size as we prefer to generate native source metadata, but component
-            // may require gralloc source. For camera source, allocate at least enough
-            // size for native metadata buffers.
-            size_t allottedSize = bufSize;
-            if (portIndex == kPortIndexInput && type == kMetadataBufferTypeANWBuffer) {
-                bufSize = max(sizeof(VideoGrallocMetadata), sizeof(VideoNativeMetadata));
-            } else if (portIndex == kPortIndexInput && type == kMetadataBufferTypeCameraSource) {
-                bufSize = max(bufSize, sizeof(VideoNativeMetadata));
-            }
-
             size_t conversionBufferSize = 0;
 
             sp<DataConverter> converter = mConverter[portIndex];
@@ -830,9 +879,9 @@
 
             size_t alignment = MemoryDealer::getAllocationAlignment();
 
-            ALOGV("[%s] Allocating %u buffers of size %zu/%zu (from %u using %s) on %s port",
+            ALOGV("[%s] Allocating %u buffers of size %zu (from %u using %s) on %s port",
                     mComponentName.c_str(),
-                    def.nBufferCountActual, bufSize, allottedSize, def.nBufferSize, asString(type),
+                    def.nBufferCountActual, bufSize, def.nBufferSize, asString(mode),
                     portIndex == kPortIndexInput ? "input" : "output");
 
             // verify buffer sizes to avoid overflow in align()
@@ -849,74 +898,127 @@
                 return NO_MEMORY;
             }
 
-            size_t totalSize = def.nBufferCountActual * (alignedSize + alignedConvSize);
-            mDealer[portIndex] = new MemoryDealer(totalSize, "ACodec");
-
-            for (OMX_U32 i = 0; i < def.nBufferCountActual && err == OK; ++i) {
-                sp<IMemory> mem = mDealer[portIndex]->allocate(bufSize);
-                if (mem == NULL || mem->pointer() == NULL) {
-                    return NO_MEMORY;
+            if (mode != IOMX::kPortModePresetSecureBuffer) {
+                if (getTrebleFlag()) {
+                    mAllocator[portIndex] = TAllocator::getService("ashmem");
+                    if (mAllocator[portIndex] == nullptr) {
+                        ALOGE("hidl allocator on port %d is null",
+                                (int)portIndex);
+                        return NO_MEMORY;
+                    }
+                } else {
+                    size_t totalSize = def.nBufferCountActual *
+                            (alignedSize + alignedConvSize);
+                    mDealer[portIndex] = new MemoryDealer(totalSize, "ACodec");
                 }
+            }
+
+            const sp<AMessage> &format =
+                    portIndex == kPortIndexInput ? mInputFormat : mOutputFormat;
+            for (OMX_U32 i = 0; i < def.nBufferCountActual && err == OK; ++i) {
+                hidl_memory hidlMemToken;
+                sp<TMemory> hidlMem;
+                sp<IMemory> mem;
 
                 BufferInfo info;
                 info.mStatus = BufferInfo::OWNED_BY_US;
                 info.mFenceFd = -1;
                 info.mRenderInfo = NULL;
-                info.mNativeHandle = NULL;
+                info.mGraphicBuffer = NULL;
+                info.mNewGraphicBuffer = false;
 
-                uint32_t requiresAllocateBufferBit =
-                    (portIndex == kPortIndexInput)
-                        ? kRequiresAllocateBufferOnInputPorts
-                        : kRequiresAllocateBufferOnOutputPorts;
-
-                if (portIndex == kPortIndexInput && (mFlags & kFlagIsSecure)) {
-                    mem.clear();
-
+                if (mode == IOMX::kPortModePresetSecureBuffer) {
                     void *ptr = NULL;
                     sp<NativeHandle> native_handle;
-                    err = mOMX->allocateSecureBuffer(
-                            mNode, portIndex, bufSize, &info.mBufferID,
+                    err = mOMXNode->allocateSecureBuffer(
+                            portIndex, bufSize, &info.mBufferID,
                             &ptr, &native_handle);
 
-                    // TRICKY: this representation is unorthodox, but ACodec requires
-                    // an ABuffer with a proper size to validate range offsets and lengths.
-                    // Since mData is never referenced for secure input, it is used to store
-                    // either the pointer to the secure buffer, or the opaque handle as on
-                    // some devices ptr is actually an opaque handle, not a pointer.
-
-                    // TRICKY2: use native handle as the base of the ABuffer if received one,
-                    // because Widevine source only receives these base addresses.
-                    const native_handle_t *native_handle_ptr =
-                        native_handle == NULL ? NULL : native_handle->handle();
-                    info.mData = new ABuffer(
-                            ptr != NULL ? ptr : (void *)native_handle_ptr, bufSize);
-                    info.mNativeHandle = native_handle;
+                    info.mData = (native_handle == NULL)
+                            ? new SecureBuffer(format, ptr, bufSize)
+                            : new SecureBuffer(format, native_handle, bufSize);
                     info.mCodecData = info.mData;
-                } else if (mQuirks & requiresAllocateBufferBit) {
-                    err = mOMX->allocateBufferWithBackup(
-                            mNode, portIndex, mem, &info.mBufferID, allottedSize);
                 } else {
-                    err = mOMX->useBuffer(mNode, portIndex, mem, &info.mBufferID, allottedSize);
-                }
+                    if (getTrebleFlag()) {
+                        bool success;
+                        auto transStatus = mAllocator[portIndex]->allocate(
+                                bufSize,
+                                [&success, &hidlMemToken](
+                                        bool s,
+                                        hidl_memory const& m) {
+                                    success = s;
+                                    hidlMemToken = m;
+                                });
 
-                if (mem != NULL) {
-                    info.mCodecData = new ABuffer(mem->pointer(), bufSize);
-                    info.mCodecRef = mem;
+                        if (!transStatus.isOk()) {
+                            ALOGE("hidl's AshmemAllocator failed at the "
+                                    "transport: %s",
+                                    transStatus.description().c_str());
+                            return NO_MEMORY;
+                        }
+                        if (!success) {
+                            return NO_MEMORY;
+                        }
+                        hidlMem = mapMemory(hidlMemToken);
 
-                    if (type == kMetadataBufferTypeANWBuffer) {
-                        ((VideoNativeMetadata *)mem->pointer())->nFenceFd = -1;
+                        err = mOMXNode->useBuffer(
+                                portIndex, hidlMemToken, &info.mBufferID);
+                    } else {
+                        mem = mDealer[portIndex]->allocate(bufSize);
+                        if (mem == NULL || mem->pointer() == NULL) {
+                            return NO_MEMORY;
+                        }
+
+                        err = mOMXNode->useBuffer(
+                                portIndex, mem, &info.mBufferID);
+                    }
+
+                    if (mode == IOMX::kPortModeDynamicANWBuffer) {
+                        VideoNativeMetadata* metaData = (VideoNativeMetadata*)(
+                                getTrebleFlag() ?
+                                (void*)hidlMem->getPointer() : mem->pointer());
+                        metaData->nFenceFd = -1;
+                    }
+
+                    if (getTrebleFlag()) {
+                        info.mCodecData = new SharedMemoryBuffer(
+                                format, hidlMem);
+                        info.mCodecRef = hidlMem;
+                    } else {
+                        info.mCodecData = new SharedMemoryBuffer(
+                                format, mem);
+                        info.mCodecRef = mem;
                     }
 
                     // if we require conversion, allocate conversion buffer for client use;
                     // otherwise, reuse codec buffer
                     if (mConverter[portIndex] != NULL) {
                         CHECK_GT(conversionBufferSize, (size_t)0);
-                        mem = mDealer[portIndex]->allocate(conversionBufferSize);
-                        if (mem == NULL|| mem->pointer() == NULL) {
-                            return NO_MEMORY;
+                        if (getTrebleFlag()) {
+                            bool success;
+                            mAllocator[portIndex]->allocate(
+                                    conversionBufferSize,
+                                    [&success, &hidlMemToken](
+                                            bool s,
+                                            hidl_memory const& m) {
+                                        success = s;
+                                        hidlMemToken = m;
+                                    });
+                            if (!success) {
+                                return NO_MEMORY;
+                            }
+                            hidlMem = mapMemory(hidlMemToken);
+                            info.mData = new SharedMemoryBuffer(format, hidlMem);
+                            info.mMemRef = hidlMem;
+                        } else {
+                            mem = mDealer[portIndex]->allocate(
+                                    conversionBufferSize);
+                            if (mem == NULL|| mem->pointer() == NULL) {
+                                return NO_MEMORY;
+                            }
+                            info.mData = new SharedMemoryBuffer(format, mem);
+                            info.mMemRef = mem;
                         }
-                        info.mData = new ABuffer(mem->pointer(), conversionBufferSize);
-                        info.mMemRef = mem;
                     } else {
                         info.mData = info.mCodecData;
                         info.mMemRef = info.mCodecRef;
@@ -932,20 +1034,17 @@
         return err;
     }
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatBuffersAllocated);
-
-    notify->setInt32("portIndex", portIndex);
-
-    sp<PortDescription> desc = new PortDescription;
-
+    std::vector<ACodecBufferChannel::BufferAndId> array(mBuffers[portIndex].size());
     for (size_t i = 0; i < mBuffers[portIndex].size(); ++i) {
-        const BufferInfo &info = mBuffers[portIndex][i];
-        desc->addBuffer(info.mBufferID, info.mData, info.mNativeHandle, info.mMemRef);
+        array[i] = {mBuffers[portIndex][i].mData, mBuffers[portIndex][i].mBufferID};
     }
-
-    notify->setObject("portDesc", desc);
-    notify->post();
+    if (portIndex == kPortIndexInput) {
+        mBufferChannel->setInputBufferArray(array);
+    } else if (portIndex == kPortIndexOutput) {
+        mBufferChannel->setOutputBufferArray(array);
+    } else {
+        TRESPASS();
+    }
 
     return OK;
 }
@@ -957,15 +1056,43 @@
     InitOMXParams(&def);
     def.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
     }
 
+    OMX_INDEXTYPE index;
+    err = mOMXNode->getExtensionIndex(
+            "OMX.google.android.index.AndroidNativeBufferConsumerUsage",
+            &index);
+
+    if (err != OK) {
+        // allow failure
+        err = OK;
+    } else {
+        int usageBits = 0;
+        if (nativeWindow->query(
+                nativeWindow,
+                NATIVE_WINDOW_CONSUMER_USAGE_BITS,
+                &usageBits) == OK) {
+            OMX_PARAM_U32TYPE params;
+            InitOMXParams(&params);
+            params.nPortIndex = kPortIndexOutput;
+            params.nU32 = (OMX_U32)usageBits;
+
+            err = mOMXNode->setParameter(index, &params, sizeof(params));
+
+            if (err != OK) {
+                ALOGE("Fail to set AndroidNativeBufferConsumerUsage: %d", err);
+                return err;
+            }
+        }
+    }
+
     OMX_U32 usage = 0;
-    err = mOMX->getGraphicBufferUsage(mNode, kPortIndexOutput, &usage);
+    err = mOMXNode->getGraphicBufferUsage(kPortIndexOutput, &usage);
     if (err != 0) {
         ALOGW("querying usage flags from OMX IL component failed: %d", err);
         // XXX: Currently this error is logged, but not fatal.
@@ -1002,12 +1129,13 @@
     InitOMXParams(&def);
     def.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err == OK) {
         err = setupNativeWindowSizeFormatAndUsage(
-                mNativeWindow.get(), &mNativeWindowUsageBits, preregister /* reconnect */);
+                mNativeWindow.get(), &mNativeWindowUsageBits,
+                preregister && !mTunneled /* reconnect */);
     }
     if (err != OK) {
         mNativeWindowUsageBits = 0;
@@ -1020,8 +1148,8 @@
     if (mTunneled) {
         ALOGV("Tunneled Playback: skipping native window buffer allocation.");
         def.nBufferCountActual = 0;
-        err = mOMX->setParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->setParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
 
         *minUndequeuedBuffers = 0;
         *bufferCount = 0;
@@ -1056,8 +1184,8 @@
         OMX_U32 newBufferCount =
             def.nBufferCountMin + *minUndequeuedBuffers + extraBuffers;
         def.nBufferCountActual = newBufferCount;
-        err = mOMX->setParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->setParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
 
         if (err == OK) {
             *minUndequeuedBuffers += extraBuffers;
@@ -1087,6 +1215,10 @@
 }
 
 status_t ACodec::allocateOutputBuffersFromNativeWindow() {
+    // This method only handles the non-metadata mode (or simulating legacy
+    // mode with metadata, which is transparent to ACodec).
+    CHECK(!storingMetadataInDecodedBuffers());
+
     OMX_U32 bufferCount, bufferSize, minUndequeuedBuffers;
     status_t err = configureOutputBuffersFromNativeWindow(
             &bufferCount, &bufferSize, &minUndequeuedBuffers, true /* preregister */);
@@ -1094,10 +1226,8 @@
         return err;
     mNumUndequeuedBuffers = minUndequeuedBuffers;
 
-    if (!storingMetadataInDecodedBuffers()) {
-        static_cast<Surface*>(mNativeWindow.get())
-                ->getIGraphicBufferProducer()->allowAllocation(true);
-    }
+    static_cast<Surface*>(mNativeWindow.get())
+            ->getIGraphicBufferProducer()->allowAllocation(true);
 
     ALOGV("[%s] Allocating %u buffers from a native window of size %u on "
          "output port",
@@ -1113,20 +1243,25 @@
             break;
         }
 
-        sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(buf, false));
+        sp<GraphicBuffer> graphicBuffer(GraphicBuffer::from(buf));
         BufferInfo info;
         info.mStatus = BufferInfo::OWNED_BY_US;
         info.mFenceFd = fenceFd;
         info.mIsReadFence = false;
         info.mRenderInfo = NULL;
-        info.mData = new ABuffer(NULL /* data */, bufferSize /* capacity */);
-        info.mCodecData = info.mData;
         info.mGraphicBuffer = graphicBuffer;
+        info.mNewGraphicBuffer = false;
+
+        // TODO: We shouln't need to create MediaCodecBuffer. In metadata mode
+        //       OMX doesn't use the shared memory buffer, but some code still
+        //       access info.mData. Create an ABuffer as a placeholder.
+        info.mData = new MediaCodecBuffer(mOutputFormat, new ABuffer(bufferSize));
+        info.mCodecData = info.mData;
+
         mBuffers[kPortIndexOutput].push(info);
 
         IOMX::buffer_id bufferId;
-        err = mOMX->useGraphicBuffer(mNode, kPortIndexOutput, graphicBuffer,
-                &bufferId);
+        err = mOMXNode->useBuffer(kPortIndexOutput, graphicBuffer, &bufferId);
         if (err != 0) {
             ALOGE("registering GraphicBuffer %u with OMX IL component failed: "
                  "%d", i, err);
@@ -1143,9 +1278,9 @@
     OMX_U32 cancelStart;
     OMX_U32 cancelEnd;
 
-    if (err != 0) {
+    if (err != OK) {
         // If an error occurred while dequeuing we need to cancel any buffers
-        // that were dequeued.
+        // that were dequeued. Also cancel all if we're in legacy metadata mode.
         cancelStart = 0;
         cancelEnd = mBuffers[kPortIndexOutput].size();
     } else {
@@ -1164,102 +1299,47 @@
         }
     }
 
-    if (!storingMetadataInDecodedBuffers()) {
-        static_cast<Surface*>(mNativeWindow.get())
-                ->getIGraphicBufferProducer()->allowAllocation(false);
-    }
+    static_cast<Surface*>(mNativeWindow.get())
+            ->getIGraphicBufferProducer()->allowAllocation(false);
 
     return err;
 }
 
 status_t ACodec::allocateOutputMetadataBuffers() {
+    CHECK(storingMetadataInDecodedBuffers());
+
     OMX_U32 bufferCount, bufferSize, minUndequeuedBuffers;
     status_t err = configureOutputBuffersFromNativeWindow(
             &bufferCount, &bufferSize, &minUndequeuedBuffers,
-            mLegacyAdaptiveExperiment /* preregister */);
-    if (err != 0)
+            false /* preregister */);
+    if (err != OK)
         return err;
     mNumUndequeuedBuffers = minUndequeuedBuffers;
 
     ALOGV("[%s] Allocating %u meta buffers on output port",
          mComponentName.c_str(), bufferCount);
 
-    size_t bufSize = mOutputMetadataType == kMetadataBufferTypeANWBuffer ?
-            sizeof(struct VideoNativeMetadata) : sizeof(struct VideoGrallocMetadata);
-    size_t totalSize = bufferCount * align(bufSize, MemoryDealer::getAllocationAlignment());
-    mDealer[kPortIndexOutput] = new MemoryDealer(totalSize, "ACodec");
-
-    // Dequeue buffers and send them to OMX
     for (OMX_U32 i = 0; i < bufferCount; i++) {
         BufferInfo info;
         info.mStatus = BufferInfo::OWNED_BY_NATIVE_WINDOW;
         info.mFenceFd = -1;
         info.mRenderInfo = NULL;
         info.mGraphicBuffer = NULL;
+        info.mNewGraphicBuffer = false;
         info.mDequeuedAt = mDequeueCounter;
 
-        sp<IMemory> mem = mDealer[kPortIndexOutput]->allocate(bufSize);
-        if (mem == NULL || mem->pointer() == NULL) {
-            return NO_MEMORY;
-        }
-        if (mOutputMetadataType == kMetadataBufferTypeANWBuffer) {
-            ((VideoNativeMetadata *)mem->pointer())->nFenceFd = -1;
-        }
-        info.mData = new ABuffer(mem->pointer(), mem->size());
-        info.mMemRef = mem;
-        info.mCodecData = info.mData;
-        info.mCodecRef = mem;
+        info.mData = new MediaCodecBuffer(mOutputFormat, new ABuffer(bufferSize));
 
-        // we use useBuffer for metadata regardless of quirks
-        err = mOMX->useBuffer(
-                mNode, kPortIndexOutput, mem, &info.mBufferID, mem->size());
+        // Initialize fence fd to -1 to avoid warning in freeBuffer().
+        ((VideoNativeMetadata *)info.mData->base())->nFenceFd = -1;
+
+        info.mCodecData = info.mData;
+
+        err = mOMXNode->useBuffer(kPortIndexOutput, OMXBuffer::sPreset, &info.mBufferID);
         mBuffers[kPortIndexOutput].push(info);
 
-        ALOGV("[%s] allocated meta buffer with ID %u (pointer = %p)",
-             mComponentName.c_str(), info.mBufferID, mem->pointer());
-    }
-
-    if (mLegacyAdaptiveExperiment) {
-        // preallocate and preregister buffers
-        static_cast<Surface *>(mNativeWindow.get())
-                ->getIGraphicBufferProducer()->allowAllocation(true);
-
-        ALOGV("[%s] Allocating %u buffers from a native window of size %u on "
-             "output port",
-             mComponentName.c_str(), bufferCount, bufferSize);
-
-        // Dequeue buffers then cancel them all
-        for (OMX_U32 i = 0; i < bufferCount; i++) {
-            BufferInfo *info = &mBuffers[kPortIndexOutput].editItemAt(i);
-
-            ANativeWindowBuffer *buf;
-            int fenceFd;
-            err = mNativeWindow->dequeueBuffer(mNativeWindow.get(), &buf, &fenceFd);
-            if (err != 0) {
-                ALOGE("dequeueBuffer failed: %s (%d)", strerror(-err), -err);
-                break;
-            }
-
-            sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(buf, false));
-            mOMX->updateGraphicBufferInMeta(
-                    mNode, kPortIndexOutput, graphicBuffer, info->mBufferID);
-            info->mStatus = BufferInfo::OWNED_BY_US;
-            info->setWriteFence(fenceFd, "allocateOutputMetadataBuffers for legacy");
-            info->mGraphicBuffer = graphicBuffer;
-        }
-
-        for (OMX_U32 i = 0; i < mBuffers[kPortIndexOutput].size(); i++) {
-            BufferInfo *info = &mBuffers[kPortIndexOutput].editItemAt(i);
-            if (info->mStatus == BufferInfo::OWNED_BY_US) {
-                status_t error = cancelBufferToNativeWindow(info);
-                if (err == OK) {
-                    err = error;
-                }
-            }
-        }
-
-        static_cast<Surface*>(mNativeWindow.get())
-                ->getIGraphicBufferProducer()->allowAllocation(false);
+        ALOGV("[%s] allocated meta buffer with ID %u",
+                mComponentName.c_str(), info.mBufferID);
     }
 
     mMetadataBuffersToSubmit = bufferCount - minUndequeuedBuffers;
@@ -1277,17 +1357,11 @@
     }
 
     ALOGV("[%s] submitting output meta buffer ID %u for graphic buffer %p",
-          mComponentName.c_str(), info->mBufferID, info->mGraphicBuffer.get());
+          mComponentName.c_str(), info->mBufferID, info->mGraphicBuffer->handle);
 
     --mMetadataBuffersToSubmit;
     info->checkWriteFence("submitOutputMetadataBuffer");
-    status_t err = mOMX->fillBuffer(mNode, info->mBufferID, info->mFenceFd);
-    info->mFenceFd = -1;
-    if (err == OK) {
-        info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
-    }
-
-    return err;
+    return fillBuffer(info);
 }
 
 status_t ACodec::waitForFence(int fd, const char *dbg ) {
@@ -1363,8 +1437,6 @@
 }
 
 void ACodec::notifyOfRenderedFrames(bool dropIncomplete, FrameRenderTracker::Info *until) {
-    sp<AMessage> msg = mNotify->dup();
-    msg->setInt32("what", CodecBase::kWhatOutputFramesRendered);
     std::list<FrameRenderTracker::Info> done =
         mRenderTracker.checkFencesAndGetRenderedFrames(until, dropIncomplete);
 
@@ -1380,9 +1452,7 @@
         }
     }
 
-    if (MediaCodec::CreateFramesRenderedMessage(done, msg)) {
-        msg->post();
-    }
+    mCallback->onOutputFramesRendered(done);
 }
 
 ACodec::BufferInfo *ACodec::dequeueBufferFromNativeWindow() {
@@ -1428,7 +1498,11 @@
                     break;
                 }
 
-                ALOGV("dequeued buffer %p", info->mGraphicBuffer->getNativeBuffer());
+                ALOGV("dequeued buffer #%u with age %u, graphicBuffer %p",
+                        (unsigned)(info - &mBuffers[kPortIndexOutput][0]),
+                        mDequeueCounter - info->mDequeuedAt,
+                        info->mGraphicBuffer->handle);
+
                 info->mStatus = BufferInfo::OWNED_BY_US;
                 info->setWriteFence(fenceFd, "dequeueBufferFromNativeWindow");
                 updateRenderInfoForDequeuedBuffer(buf, fenceFd, info);
@@ -1441,7 +1515,7 @@
         // same is possible in meta mode, in which case, it will be treated
         // as a normal buffer, which is not desirable.
         // TODO: fix this.
-        if (!stale && (!storingMetadataInDecodedBuffers() || mLegacyAdaptiveExperiment)) {
+        if (!stale && !storingMetadataInDecodedBuffers()) {
             ALOGI("dequeued unrecognized (stale) buffer %p. discarding", buf);
             stale = true;
         }
@@ -1473,39 +1547,29 @@
     CHECK(storingMetadataInDecodedBuffers());
 
     // discard buffer in LRU info and replace with new buffer
-    oldest->mGraphicBuffer = new GraphicBuffer(buf, false);
+    oldest->mGraphicBuffer = GraphicBuffer::from(buf);
+    oldest->mNewGraphicBuffer = true;
     oldest->mStatus = BufferInfo::OWNED_BY_US;
     oldest->setWriteFence(fenceFd, "dequeueBufferFromNativeWindow for oldest");
     mRenderTracker.untrackFrame(oldest->mRenderInfo);
     oldest->mRenderInfo = NULL;
 
-    mOMX->updateGraphicBufferInMeta(
-            mNode, kPortIndexOutput, oldest->mGraphicBuffer,
-            oldest->mBufferID);
-
-    if (mOutputMetadataType == kMetadataBufferTypeGrallocSource) {
-        VideoGrallocMetadata *grallocMeta =
-            reinterpret_cast<VideoGrallocMetadata *>(oldest->mData->base());
-        ALOGV("replaced oldest buffer #%u with age %u (%p/%p stored in %p)",
-                (unsigned)(oldest - &mBuffers[kPortIndexOutput][0]),
-                mDequeueCounter - oldest->mDequeuedAt,
-                (void *)(uintptr_t)grallocMeta->pHandle,
-                oldest->mGraphicBuffer->handle, oldest->mData->base());
-    } else if (mOutputMetadataType == kMetadataBufferTypeANWBuffer) {
-        VideoNativeMetadata *nativeMeta =
-            reinterpret_cast<VideoNativeMetadata *>(oldest->mData->base());
-        ALOGV("replaced oldest buffer #%u with age %u (%p/%p stored in %p)",
-                (unsigned)(oldest - &mBuffers[kPortIndexOutput][0]),
-                mDequeueCounter - oldest->mDequeuedAt,
-                (void *)(uintptr_t)nativeMeta->pBuffer,
-                oldest->mGraphicBuffer->getNativeBuffer(), oldest->mData->base());
-    }
+    ALOGV("replaced oldest buffer #%u with age %u, graphicBuffer %p",
+            (unsigned)(oldest - &mBuffers[kPortIndexOutput][0]),
+            mDequeueCounter - oldest->mDequeuedAt,
+            oldest->mGraphicBuffer->handle);
 
     updateRenderInfoForDequeuedBuffer(buf, fenceFd, oldest);
     return oldest;
 }
 
 status_t ACodec::freeBuffersOnPort(OMX_U32 portIndex) {
+    if (portIndex == kPortIndexInput) {
+        mBufferChannel->setInputBufferArray({});
+    } else {
+        mBufferChannel->setOutputBufferArray({});
+    }
+
     status_t err = OK;
     for (size_t i = mBuffers[portIndex].size(); i > 0;) {
         i--;
@@ -1515,8 +1579,11 @@
         }
     }
 
-    // clear mDealer even on an error
-    mDealer[portIndex].clear();
+    if (getTrebleFlag()) {
+        mAllocator[portIndex].clear();
+    } else {
+        mDealer[portIndex].clear();
+    }
     return err;
 }
 
@@ -1546,11 +1613,9 @@
     status_t err = OK;
 
     // there should not be any fences in the metadata
-    MetadataBufferType type =
-        portIndex == kPortIndexOutput ? mOutputMetadataType : mInputMetadataType;
-    if (type == kMetadataBufferTypeANWBuffer && info->mData != NULL
-            && info->mData->size() >= sizeof(VideoNativeMetadata)) {
-        int fenceFd = ((VideoNativeMetadata *)info->mData->data())->nFenceFd;
+    if (mPortMode[portIndex] == IOMX::kPortModeDynamicANWBuffer && info->mCodecData != NULL
+            && info->mCodecData->size() >= sizeof(VideoNativeMetadata)) {
+        int fenceFd = ((VideoNativeMetadata *)info->mCodecData->base())->nFenceFd;
         if (fenceFd >= 0) {
             ALOGW("unreleased fence (%d) in %s metadata buffer %zu",
                     fenceFd, portIndex == kPortIndexInput ? "input" : "output", i);
@@ -1565,7 +1630,7 @@
             // fall through
 
         case BufferInfo::OWNED_BY_NATIVE_WINDOW:
-            err = mOMX->freeBuffer(mNode, portIndex, info->mBufferID);
+            err = mOMXNode->freeBuffer(portIndex, info->mBufferID);
             break;
 
         default:
@@ -1583,7 +1648,7 @@
         info->mRenderInfo = NULL;
     }
 
-    // remove buffer even if mOMX->freeBuffer fails
+    // remove buffer even if mOMXNode->freeBuffer fails
     mBuffers[portIndex].removeAt(i);
     return err;
 }
@@ -1605,13 +1670,37 @@
     return NULL;
 }
 
+status_t ACodec::fillBuffer(BufferInfo *info) {
+    status_t err;
+    // Even in dynamic ANW buffer mode, if the graphic buffer is not changing,
+    // send sPreset instead of the same graphic buffer, so that OMX server
+    // side doesn't update the meta. In theory it should make no difference,
+    // however when the same buffer is parcelled again, a new handle could be
+    // created on server side, and some decoder doesn't recognize the handle
+    // even if it's the same buffer.
+    if (!storingMetadataInDecodedBuffers() || !info->mNewGraphicBuffer) {
+        err = mOMXNode->fillBuffer(
+            info->mBufferID, OMXBuffer::sPreset, info->mFenceFd);
+    } else {
+        err = mOMXNode->fillBuffer(
+            info->mBufferID, info->mGraphicBuffer, info->mFenceFd);
+    }
+
+    info->mNewGraphicBuffer = false;
+    info->mFenceFd = -1;
+    if (err == OK) {
+        info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
+    }
+    return err;
+}
+
 status_t ACodec::setComponentRole(
         bool isEncoder, const char *mime) {
-    const char *role = getComponentRole(isEncoder, mime);
+    const char *role = GetComponentRole(isEncoder, mime);
     if (role == NULL) {
         return BAD_VALUE;
     }
-    status_t err = setComponentRole(mOMX, mNode, role);
+    status_t err = SetComponentRole(mOMXNode, role);
     if (err != OK) {
         ALOGW("[%s] Failed to set standard component role '%s'.",
              mComponentName.c_str(), role);
@@ -1619,98 +1708,6 @@
     return err;
 }
 
-//static
-const char *ACodec::getComponentRole(
-        bool isEncoder, const char *mime) {
-    struct MimeToRole {
-        const char *mime;
-        const char *decoderRole;
-        const char *encoderRole;
-    };
-
-    static const MimeToRole kMimeToRole[] = {
-        { MEDIA_MIMETYPE_AUDIO_MPEG,
-            "audio_decoder.mp3", "audio_encoder.mp3" },
-        { MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I,
-            "audio_decoder.mp1", "audio_encoder.mp1" },
-        { MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II,
-            "audio_decoder.mp2", "audio_encoder.mp2" },
-        { MEDIA_MIMETYPE_AUDIO_AMR_NB,
-            "audio_decoder.amrnb", "audio_encoder.amrnb" },
-        { MEDIA_MIMETYPE_AUDIO_AMR_WB,
-            "audio_decoder.amrwb", "audio_encoder.amrwb" },
-        { MEDIA_MIMETYPE_AUDIO_AAC,
-            "audio_decoder.aac", "audio_encoder.aac" },
-        { MEDIA_MIMETYPE_AUDIO_VORBIS,
-            "audio_decoder.vorbis", "audio_encoder.vorbis" },
-        { MEDIA_MIMETYPE_AUDIO_OPUS,
-            "audio_decoder.opus", "audio_encoder.opus" },
-        { MEDIA_MIMETYPE_AUDIO_G711_MLAW,
-            "audio_decoder.g711mlaw", "audio_encoder.g711mlaw" },
-        { MEDIA_MIMETYPE_AUDIO_G711_ALAW,
-            "audio_decoder.g711alaw", "audio_encoder.g711alaw" },
-        { MEDIA_MIMETYPE_VIDEO_AVC,
-            "video_decoder.avc", "video_encoder.avc" },
-        { MEDIA_MIMETYPE_VIDEO_HEVC,
-            "video_decoder.hevc", "video_encoder.hevc" },
-        { MEDIA_MIMETYPE_VIDEO_MPEG4,
-            "video_decoder.mpeg4", "video_encoder.mpeg4" },
-        { MEDIA_MIMETYPE_VIDEO_H263,
-            "video_decoder.h263", "video_encoder.h263" },
-        { MEDIA_MIMETYPE_VIDEO_VP8,
-            "video_decoder.vp8", "video_encoder.vp8" },
-        { MEDIA_MIMETYPE_VIDEO_VP9,
-            "video_decoder.vp9", "video_encoder.vp9" },
-        { MEDIA_MIMETYPE_AUDIO_RAW,
-            "audio_decoder.raw", "audio_encoder.raw" },
-        { MEDIA_MIMETYPE_VIDEO_DOLBY_VISION,
-            "video_decoder.dolby-vision", "video_encoder.dolby-vision" },
-        { MEDIA_MIMETYPE_AUDIO_FLAC,
-            "audio_decoder.flac", "audio_encoder.flac" },
-        { MEDIA_MIMETYPE_AUDIO_MSGSM,
-            "audio_decoder.gsm", "audio_encoder.gsm" },
-        { MEDIA_MIMETYPE_VIDEO_MPEG2,
-            "video_decoder.mpeg2", "video_encoder.mpeg2" },
-        { MEDIA_MIMETYPE_AUDIO_AC3,
-            "audio_decoder.ac3", "audio_encoder.ac3" },
-        { MEDIA_MIMETYPE_AUDIO_EAC3,
-            "audio_decoder.eac3", "audio_encoder.eac3" },
-    };
-
-    static const size_t kNumMimeToRole =
-        sizeof(kMimeToRole) / sizeof(kMimeToRole[0]);
-
-    size_t i;
-    for (i = 0; i < kNumMimeToRole; ++i) {
-        if (!strcasecmp(mime, kMimeToRole[i].mime)) {
-            break;
-        }
-    }
-
-    if (i == kNumMimeToRole) {
-        return NULL;
-    }
-
-    return isEncoder ? kMimeToRole[i].encoderRole
-                  : kMimeToRole[i].decoderRole;
-}
-
-//static
-status_t ACodec::setComponentRole(
-        const sp<IOMX> &omx, IOMX::node_id node, const char *role) {
-    OMX_PARAM_COMPONENTROLETYPE roleParams;
-    InitOMXParams(&roleParams);
-
-    strncpy((char *)roleParams.cRole,
-            role, OMX_MAX_STRINGNAME_SIZE - 1);
-
-    roleParams.cRole[OMX_MAX_STRINGNAME_SIZE - 1] = '\0';
-
-    return omx->setParameter(
-            node, OMX_IndexParamStandardComponentRole,
-            &roleParams, sizeof(roleParams));
-}
-
 status_t ACodec::configureCodec(
         const char *mime, const sp<AMessage> &msg) {
     int32_t encoder;
@@ -1724,8 +1721,8 @@
 
     mIsEncoder = encoder;
 
-    mInputMetadataType = kMetadataBufferTypeInvalid;
-    mOutputMetadataType = kMetadataBufferTypeInvalid;
+    mPortMode[kPortIndexInput] = IOMX::kPortModePresetByteBuffer;
+    mPortMode[kPortIndexOutput] = IOMX::kPortModePresetByteBuffer;
 
     status_t err = setComponentRole(encoder /* isEncoder */, mime);
 
@@ -1752,23 +1749,23 @@
     if (encoder
             && msg->findInt32("android._input-metadata-buffer-type", &storeMeta)
             && storeMeta != kMetadataBufferTypeInvalid) {
-        mInputMetadataType = (MetadataBufferType)storeMeta;
-        err = mOMX->storeMetaDataInBuffers(
-                mNode, kPortIndexInput, OMX_TRUE, &mInputMetadataType);
+        IOMX::PortMode mode;
+        if (storeMeta == kMetadataBufferTypeNativeHandleSource) {
+            mode = IOMX::kPortModeDynamicNativeHandle;
+        } else if (storeMeta == kMetadataBufferTypeANWBuffer ||
+                storeMeta == kMetadataBufferTypeGrallocSource) {
+            mode = IOMX::kPortModeDynamicANWBuffer;
+        } else {
+            return BAD_VALUE;
+        }
+        err = setPortMode(kPortIndexInput, mode);
         if (err != OK) {
-            ALOGE("[%s] storeMetaDataInBuffers (input) failed w/ err %d",
-                    mComponentName.c_str(), err);
-
             return err;
-        } else if (storeMeta == kMetadataBufferTypeANWBuffer
-                && mInputMetadataType == kMetadataBufferTypeGrallocSource) {
-            // IOMX translates ANWBuffers to gralloc source already.
-            mInputMetadataType = (MetadataBufferType)storeMeta;
         }
 
         uint32_t usageBits;
-        if (mOMX->getParameter(
-                mNode, (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits,
+        if (mOMXNode->getParameter(
+                (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits,
                 &usageBits, sizeof(usageBits)) == OK) {
             inputFormat->setInt32(
                     "using-sw-read-often", !!(usageBits & GRALLOC_USAGE_SW_READ_OFTEN));
@@ -1780,18 +1777,15 @@
             && msg->findInt32("prepend-sps-pps-to-idr-frames", &prependSPSPPS)
             && prependSPSPPS != 0) {
         OMX_INDEXTYPE index;
-        err = mOMX->getExtensionIndex(
-                mNode,
-                "OMX.google.android.index.prependSPSPPSToIDRFrames",
-                &index);
+        err = mOMXNode->getExtensionIndex(
+                "OMX.google.android.index.prependSPSPPSToIDRFrames", &index);
 
         if (err == OK) {
             PrependSPSPPSToIDRFramesParams params;
             InitOMXParams(&params);
             params.bEnable = OMX_TRUE;
 
-            err = mOMX->setParameter(
-                    mNode, index, &params, sizeof(params));
+            err = mOMXNode->setParameter(index, &params, sizeof(params));
         }
 
         if (err != OK) {
@@ -1811,12 +1805,14 @@
         OMX_BOOL enable = (OMX_BOOL) (prependSPSPPS
             && msg->findInt32("android._store-metadata-in-buffers-output", &storeMeta)
             && storeMeta != 0);
+        if (mFlags & kFlagIsSecure) {
+            enable = OMX_TRUE;
+        }
 
-        mOutputMetadataType = kMetadataBufferTypeNativeHandleSource;
-        err = mOMX->storeMetaDataInBuffers(mNode, kPortIndexOutput, enable, &mOutputMetadataType);
+        err = setPortMode(kPortIndexOutput, enable ?
+                IOMX::kPortModePresetSecureBuffer : IOMX::kPortModePresetByteBuffer);
         if (err != OK) {
-            ALOGE("[%s] storeMetaDataInBuffers (output) failed w/ err %d",
-                mComponentName.c_str(), err);
+            return err;
         }
 
         if (!msg->findInt64(
@@ -1825,16 +1821,20 @@
             mRepeatFrameDelayUs = -1ll;
         }
 
+        // only allow 32-bit value, since we pass it as U32 to OMX.
         if (!msg->findInt64("max-pts-gap-to-encoder", &mMaxPtsGapUs)) {
             mMaxPtsGapUs = -1ll;
+        } else if (mMaxPtsGapUs > INT32_MAX || mMaxPtsGapUs < 0) {
+            ALOGW("Unsupported value for max pts gap %lld", (long long) mMaxPtsGapUs);
+            mMaxPtsGapUs = -1ll;
         }
 
         if (!msg->findFloat("max-fps-to-encoder", &mMaxFps)) {
             mMaxFps = -1;
         }
 
-        if (!msg->findInt64("time-lapse", &mTimePerCaptureUs)) {
-            mTimePerCaptureUs = -1ll;
+        if (!msg->findDouble("time-lapse-fps", &mCaptureFps)) {
+            mCaptureFps = -1.0;
         }
 
         if (!msg->findInt32(
@@ -1849,7 +1849,6 @@
     bool haveNativeWindow = msg->findObject("native-window", &obj)
             && obj != NULL && video && !encoder;
     mUsingNativeWindow = haveNativeWindow;
-    mLegacyAdaptiveExperiment = false;
     if (video && !encoder) {
         inputFormat->setInt32("adaptive-playback", false);
 
@@ -1865,10 +1864,13 @@
 
         if (mFlags & kFlagIsSecure) {
             // use native_handles for secure input buffers
-            err = mOMX->enableNativeBuffers(
-                    mNode, kPortIndexInput, OMX_FALSE /* graphic */, OMX_TRUE);
-            ALOGI_IF(err != OK, "falling back to non-native_handles");
-            err = OK; // ignore error for now
+            err = setPortMode(kPortIndexInput, IOMX::kPortModePresetSecureBuffer);
+
+            if (err != OK) {
+                ALOGI("falling back to non-native_handles");
+                setPortMode(kPortIndexInput, IOMX::kPortModePresetByteBuffer);
+                err = OK; // ignore error for now
+            }
         }
     }
     if (haveNativeWindow) {
@@ -1882,8 +1884,8 @@
             OMX_CONFIG_BOOLEANTYPE config;
             InitOMXParams(&config);
             config.bEnabled = (OMX_BOOL)enabled;
-            status_t temp = mOMX->setConfig(
-                    mNode, (OMX_INDEXTYPE)OMX_IndexConfigAutoFramerateConversion,
+            status_t temp = mOMXNode->setConfig(
+                    (OMX_INDEXTYPE)OMX_IndexConfigAutoFramerateConversion,
                     &config, sizeof(config));
             if (temp == OK) {
                 outputFormat->setInt32("auto-frc", enabled);
@@ -1914,8 +1916,8 @@
             if (msg->findInt32("max-width", &maxWidth) &&
                     msg->findInt32("max-height", &maxHeight)) {
 
-                err = mOMX->prepareForAdaptivePlayback(
-                        mNode, kPortIndexOutput, OMX_TRUE, maxWidth, maxHeight);
+                err = mOMXNode->prepareForAdaptivePlayback(
+                        kPortIndexOutput, OMX_TRUE, maxWidth, maxHeight);
                 if (err != OK) {
                     ALOGW("[%s] prepareForAdaptivePlayback failed w/ err %d",
                             mComponentName.c_str(), err);
@@ -1940,14 +1942,8 @@
                 return err;
             }
 
-            // Always try to enable dynamic output buffers on native surface
-            mOutputMetadataType = kMetadataBufferTypeANWBuffer;
-            err = mOMX->storeMetaDataInBuffers(
-                    mNode, kPortIndexOutput, OMX_TRUE, &mOutputMetadataType);
+            err = setPortMode(kPortIndexOutput, IOMX::kPortModeDynamicANWBuffer);
             if (err != OK) {
-                ALOGE("[%s] storeMetaDataInBuffers failed w/ err %d",
-                        mComponentName.c_str(), err);
-
                 // if adaptive playback has been requested, try JB fallback
                 // NOTE: THIS FALLBACK MECHANISM WILL BE REMOVED DUE TO ITS
                 // LARGE MEMORY REQUIREMENT
@@ -1977,9 +1973,8 @@
                     ALOGV("[%s] prepareForAdaptivePlayback(%dx%d)",
                             mComponentName.c_str(), maxWidth, maxHeight);
 
-                    err = mOMX->prepareForAdaptivePlayback(
-                            mNode, kPortIndexOutput, OMX_TRUE, maxWidth,
-                            maxHeight);
+                    err = mOMXNode->prepareForAdaptivePlayback(
+                            kPortIndexOutput, OMX_TRUE, maxWidth, maxHeight);
                     ALOGW_IF(err != OK,
                             "[%s] prepareForAdaptivePlayback failed w/ err %d",
                             mComponentName.c_str(), err);
@@ -1993,12 +1988,9 @@
                 // allow failure
                 err = OK;
             } else {
-                ALOGV("[%s] storeMetaDataInBuffers succeeded",
-                        mComponentName.c_str());
+                ALOGV("[%s] setPortMode on output to %s succeeded",
+                        mComponentName.c_str(), asString(IOMX::kPortModeDynamicANWBuffer));
                 CHECK(storingMetadataInDecodedBuffers());
-                mLegacyAdaptiveExperiment = ADebug::isExperimentEnabled(
-                        "legacy-adaptive", !msg->contains("no-experiments"));
-
                 inputFormat->setInt32("adaptive-playback", true);
             }
 
@@ -2027,6 +2019,12 @@
         if (haveNativeWindow && mComponentName.startsWith("OMX.google.")) {
             usingSwRenderer = true;
             haveNativeWindow = false;
+            (void)setPortMode(kPortIndexOutput, IOMX::kPortModePresetByteBuffer);
+        } else if (haveNativeWindow && !storingMetadataInDecodedBuffers()) {
+            err = setPortMode(kPortIndexOutput, IOMX::kPortModePresetANWBuffer);
+            if (err != OK) {
+                return err;
+            }
         }
 
         if (encoder) {
@@ -2041,17 +2039,8 @@
 
         if (haveNativeWindow) {
             mNativeWindow = static_cast<Surface *>(obj.get());
-        }
 
-        // initialize native window now to get actual output format
-        // TODO: this is needed for some encoders even though they don't use native window
-        err = initNativeWindow();
-        if (err != OK) {
-            return err;
-        }
-
-        // fallback for devices that do not handle flex-YUV for native buffers
-        if (haveNativeWindow) {
+            // fallback for devices that do not handle flex-YUV for native buffers
             int32_t requestedColorFormat = OMX_COLOR_FormatUnused;
             if (msg->findInt32("color-format", &requestedColorFormat) &&
                     requestedColorFormat == OMX_COLOR_FormatYUV420Flexible) {
@@ -2067,8 +2056,8 @@
                 }
                 ALOGD("[%s] Requested output format %#x and got %#x.",
                         mComponentName.c_str(), requestedColorFormat, colorFormat);
-                if (!isFlexibleColorFormat(
-                                mOMX, mNode, colorFormat, haveNativeWindow, &flexibleEquivalent)
+                if (!IsFlexibleColorFormat(
+                        mOMXNode, colorFormat, haveNativeWindow, &flexibleEquivalent)
                         || flexibleEquivalent != (OMX_U32)requestedColorFormat) {
                     // device did not handle flex-YUV request for native window, fall back
                     // to SW renderer
@@ -2077,18 +2066,10 @@
                     mNativeWindowUsageBits = 0;
                     haveNativeWindow = false;
                     usingSwRenderer = true;
-                    if (storingMetadataInDecodedBuffers()) {
-                        err = mOMX->storeMetaDataInBuffers(
-                                mNode, kPortIndexOutput, OMX_FALSE, &mOutputMetadataType);
-                        mOutputMetadataType = kMetadataBufferTypeInvalid; // just in case
-                        // TODO: implement adaptive-playback support for bytebuffer mode.
-                        // This is done by SW codecs, but most HW codecs don't support it.
-                        inputFormat->setInt32("adaptive-playback", false);
-                    }
-                    if (err == OK) {
-                        err = mOMX->enableNativeBuffers(
-                                mNode, kPortIndexOutput, OMX_TRUE /* graphic */, OMX_FALSE);
-                    }
+                    // TODO: implement adaptive-playback support for bytebuffer mode.
+                    // This is done by SW codecs, but most HW codecs don't support it.
+                    err = setPortMode(kPortIndexOutput, IOMX::kPortModePresetByteBuffer);
+                    inputFormat->setInt32("adaptive-playback", false);
                     if (mFlags & kFlagIsGrallocUsageProtected) {
                         // fallback is not supported for protected playback
                         err = PERMISSION_DENIED;
@@ -2268,13 +2249,16 @@
     int32_t maxInputSize;
     if (msg->findInt32("max-input-size", &maxInputSize)) {
         err = setMinBufferSize(kPortIndexInput, (size_t)maxInputSize);
+        err = OK; // ignore error
     } else if (!strcmp("OMX.Nvidia.aac.decoder", mComponentName.c_str())) {
         err = setMinBufferSize(kPortIndexInput, 8192);  // XXX
+        err = OK; // ignore error
     }
 
     int32_t priority;
     if (msg->findInt32("priority", &priority)) {
         err = setPriority(priority);
+        err = OK; // ignore error
     }
 
     int32_t rateInt = -1;
@@ -2285,11 +2269,18 @@
     }
     if (rateFloat > 0) {
         err = setOperatingRate(rateFloat, video);
+        err = OK; // ignore errors
+    }
+
+    if (err == OK) {
+        err = setVendorParameters(msg);
+        if (err != OK) {
+            return err;
+        }
     }
 
     // NOTE: both mBaseOutputFormat and mOutputFormat are outputFormat to signal first frame.
     mBaseOutputFormat = outputFormat;
-    // trigger a kWhatOutputFormatChanged msg on first buffer
     mLastOutputFormat.clear();
 
     err = getPortFormat(kPortIndexInput, inputFormat);
@@ -2322,6 +2313,30 @@
     return err;
 }
 
+status_t ACodec::setLatency(uint32_t latency) {
+    OMX_PARAM_U32TYPE config;
+    InitOMXParams(&config);
+    config.nPortIndex = kPortIndexInput;
+    config.nU32 = (OMX_U32)latency;
+    status_t err = mOMXNode->setConfig(
+            (OMX_INDEXTYPE)OMX_IndexConfigLatency,
+            &config, sizeof(config));
+    return err;
+}
+
+status_t ACodec::getLatency(uint32_t *latency) {
+    OMX_PARAM_U32TYPE config;
+    InitOMXParams(&config);
+    config.nPortIndex = kPortIndexInput;
+    status_t err = mOMXNode->getConfig(
+            (OMX_INDEXTYPE)OMX_IndexConfigLatency,
+            &config, sizeof(config));
+    if (err == OK) {
+        *latency = config.nU32;
+    }
+    return err;
+}
+
 status_t ACodec::setPriority(int32_t priority) {
     if (priority < 0) {
         return BAD_VALUE;
@@ -2329,8 +2344,8 @@
     OMX_PARAM_U32TYPE config;
     InitOMXParams(&config);
     config.nU32 = (OMX_U32)priority;
-    status_t temp = mOMX->setConfig(
-            mNode, (OMX_INDEXTYPE)OMX_IndexConfigPriority,
+    status_t temp = mOMXNode->setConfig(
+            (OMX_INDEXTYPE)OMX_IndexConfigPriority,
             &config, sizeof(config));
     if (temp != OK) {
         ALOGI("codec does not support config priority (err %d)", temp);
@@ -2357,8 +2372,8 @@
     OMX_PARAM_U32TYPE config;
     InitOMXParams(&config);
     config.nU32 = rate;
-    status_t err = mOMX->setConfig(
-            mNode, (OMX_INDEXTYPE)OMX_IndexConfigOperatingRate,
+    status_t err = mOMXNode->setConfig(
+            (OMX_INDEXTYPE)OMX_IndexConfigOperatingRate,
             &config, sizeof(config));
     if (err != OK) {
         ALOGI("codec does not support config operating rate (err %d)", err);
@@ -2370,8 +2385,8 @@
     OMX_VIDEO_CONFIG_ANDROID_INTRAREFRESHTYPE params;
     InitOMXParams(&params);
     params.nPortIndex = kPortIndexOutput;
-    status_t err = mOMX->getConfig(
-            mNode, (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh, &params, sizeof(params));
+    status_t err = mOMXNode->getConfig(
+            (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh, &params, sizeof(params));
     if (err == OK) {
         *intraRefreshPeriod = params.nRefreshPeriod;
         return OK;
@@ -2382,8 +2397,8 @@
     InitOMXParams(&refreshParams);
     refreshParams.nPortIndex = kPortIndexOutput;
     refreshParams.eRefreshMode = OMX_VIDEO_IntraRefreshCyclic;
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoIntraRefresh, &refreshParams, sizeof(refreshParams));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamVideoIntraRefresh, &refreshParams, sizeof(refreshParams));
     if (err != OK || refreshParams.nCirMBs == 0) {
         *intraRefreshPeriod = 0;
         return OK;
@@ -2395,8 +2410,8 @@
     InitOMXParams(&def);
     OMX_VIDEO_PORTDEFINITIONTYPE *video_def = &def.format.video;
     def.nPortIndex = kPortIndexOutput;
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
     if (err != OK) {
         *intraRefreshPeriod = 0;
         return err;
@@ -2414,8 +2429,8 @@
     InitOMXParams(&params);
     params.nPortIndex = kPortIndexOutput;
     params.nRefreshPeriod = intraRefreshPeriod;
-    status_t err = mOMX->setConfig(
-            mNode, (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh, &params, sizeof(params));
+    status_t err = mOMXNode->setConfig(
+            (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh, &params, sizeof(params));
     if (err == OK) {
         return OK;
     }
@@ -2442,8 +2457,8 @@
         InitOMXParams(&def);
         OMX_VIDEO_PORTDEFINITIONTYPE *video_def = &def.format.video;
         def.nPortIndex = kPortIndexOutput;
-        err = mOMX->getParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->getParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
         if (err != OK) {
             return err;
         }
@@ -2453,8 +2468,9 @@
         refreshParams.nCirMBs = divUp((divUp(width, 16u) * divUp(height, 16u)), intraRefreshPeriod);
     }
 
-    err = mOMX->setParameter(mNode, OMX_IndexParamVideoIntraRefresh,
-                             &refreshParams, sizeof(refreshParams));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamVideoIntraRefresh,
+            &refreshParams, sizeof(refreshParams));
     if (err != OK) {
         return err;
     }
@@ -2497,9 +2513,9 @@
     InitOMXParams(&layerParams);
     layerParams.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-        mNode, (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
-        &layerParams, sizeof(layerParams));
+    status_t err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
+            &layerParams, sizeof(layerParams));
 
     if (err != OK) {
         return err;
@@ -2519,8 +2535,8 @@
         layerConfig.nBLayerCountActual = numBLayers;
         layerConfig.bBitrateRatiosSpecified = OMX_FALSE;
 
-        err = mOMX->setConfig(
-                mNode, (OMX_INDEXTYPE)OMX_IndexConfigAndroidVideoTemporalLayering,
+        err = mOMXNode->setConfig(
+                (OMX_INDEXTYPE)OMX_IndexConfigAndroidVideoTemporalLayering,
                 &layerConfig, sizeof(layerConfig));
     } else {
         layerParams.ePattern = pattern;
@@ -2528,8 +2544,8 @@
         layerParams.nBLayerCountActual = numBLayers;
         layerParams.bBitrateRatiosSpecified = OMX_FALSE;
 
-        err = mOMX->setParameter(
-                mNode, (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
+        err = mOMXNode->setParameter(
+                (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
                 &layerParams, sizeof(layerParams));
     }
 
@@ -2546,8 +2562,8 @@
         return err;
     }
 
-    err = mOMX->getParameter(
-            mNode, (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
+    err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
             &layerParams, sizeof(layerParams));
 
     if (err == OK) {
@@ -2570,8 +2586,8 @@
     InitOMXParams(&def);
     def.nPortIndex = portIndex;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2583,15 +2599,15 @@
 
     def.nBufferSize = size;
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
     }
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2613,9 +2629,8 @@
     format.nPortIndex = portIndex;
     for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
         format.nIndex = index;
-        status_t err = mOMX->getParameter(
-                mNode, OMX_IndexParamAudioPortFormat,
-                &format, sizeof(format));
+        status_t err = mOMXNode->getParameter(
+                OMX_IndexParamAudioPortFormat, &format, sizeof(format));
 
         if (err != OK) {
             return err;
@@ -2633,8 +2648,8 @@
         }
     }
 
-    return mOMX->setParameter(
-            mNode, OMX_IndexParamAudioPortFormat, &format, sizeof(format));
+    return mOMXNode->setParameter(
+            OMX_IndexParamAudioPortFormat, &format, sizeof(format));
 }
 
 status_t ACodec::setupAACCodec(
@@ -2666,8 +2681,8 @@
         InitOMXParams(&def);
         def.nPortIndex = kPortIndexOutput;
 
-        err = mOMX->getParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->getParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
 
         if (err != OK) {
             return err;
@@ -2676,8 +2691,8 @@
         def.format.audio.bFlagErrorConcealment = OMX_TRUE;
         def.format.audio.eEncoding = OMX_AUDIO_CodingAAC;
 
-        err = mOMX->setParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->setParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
 
         if (err != OK) {
             return err;
@@ -2687,8 +2702,8 @@
         InitOMXParams(&profile);
         profile.nPortIndex = kPortIndexOutput;
 
-        err = mOMX->getParameter(
-                mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
+        err = mOMXNode->getParameter(
+                OMX_IndexParamAudioAac, &profile, sizeof(profile));
 
         if (err != OK) {
             return err;
@@ -2735,8 +2750,8 @@
         }
 
 
-        err = mOMX->setParameter(
-                mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
+        err = mOMXNode->setParameter(
+                OMX_IndexParamAudioAac, &profile, sizeof(profile));
 
         if (err != OK) {
             return err;
@@ -2749,8 +2764,8 @@
     InitOMXParams(&profile);
     profile.nPortIndex = kPortIndexInput;
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamAudioAac, &profile, sizeof(profile));
 
     if (err != OK) {
         return err;
@@ -2774,14 +2789,17 @@
     presentation.nEncodedTargetLevel = drc.encodedTargetLevel;
     presentation.nPCMLimiterEnable = pcmLimiterEnable;
 
-    status_t res = mOMX->setParameter(mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
+    status_t res = mOMXNode->setParameter(
+            OMX_IndexParamAudioAac, &profile, sizeof(profile));
     if (res == OK) {
         // optional parameters, will not cause configuration failure
-        mOMX->setParameter(mNode, (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAacPresentation,
+        mOMXNode->setParameter(
+                (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAacPresentation,
                 &presentation, sizeof(presentation));
     } else {
         ALOGW("did not set AudioAndroidAacPresentation due to error %d when setting AudioAac", res);
     }
+    mSampleRate = sampleRate;
     return res;
 }
 
@@ -2803,11 +2821,8 @@
     InitOMXParams(&def);
     def.nPortIndex = kPortIndexInput;
 
-    err = mOMX->getParameter(
-            mNode,
-            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3,
-            &def,
-            sizeof(def));
+    err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2816,11 +2831,8 @@
     def.nChannels = numChannels;
     def.nSampleRate = sampleRate;
 
-    return mOMX->setParameter(
-            mNode,
-            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3,
-            &def,
-            sizeof(def));
+    return mOMXNode->setParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3, &def, sizeof(def));
 }
 
 status_t ACodec::setupEAC3Codec(
@@ -2841,11 +2853,8 @@
     InitOMXParams(&def);
     def.nPortIndex = kPortIndexInput;
 
-    err = mOMX->getParameter(
-            mNode,
-            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3,
-            &def,
-            sizeof(def));
+    err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2854,11 +2863,8 @@
     def.nChannels = numChannels;
     def.nSampleRate = sampleRate;
 
-    return mOMX->setParameter(
-            mNode,
-            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3,
-            &def,
-            sizeof(def));
+    return mOMXNode->setParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3, &def, sizeof(def));
 }
 
 static OMX_AUDIO_AMRBANDMODETYPE pickModeFromBitRate(
@@ -2911,8 +2917,8 @@
     InitOMXParams(&def);
     def.nPortIndex = encoder ? kPortIndexOutput : kPortIndexInput;
 
-    status_t err =
-        mOMX->getParameter(mNode, OMX_IndexParamAudioAmr, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamAudioAmr, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2921,8 +2927,8 @@
     def.eAMRFrameFormat = OMX_AUDIO_AMRFrameFormatFSF;
     def.eAMRBandMode = pickModeFromBitRate(isWAMR, bitrate);
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamAudioAmr, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamAudioAmr, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2952,13 +2958,13 @@
         def.nPortIndex = kPortIndexOutput;
 
         // configure compression level
-        status_t err = mOMX->getParameter(mNode, OMX_IndexParamAudioFlac, &def, sizeof(def));
+        status_t err = mOMXNode->getParameter(OMX_IndexParamAudioFlac, &def, sizeof(def));
         if (err != OK) {
             ALOGE("setupFlacCodec(): Error %d getting OMX_IndexParamAudioFlac parameter", err);
             return err;
         }
         def.nCompressionLevel = compressionLevel;
-        err = mOMX->setParameter(mNode, OMX_IndexParamAudioFlac, &def, sizeof(def));
+        err = mOMXNode->setParameter(OMX_IndexParamAudioFlac, &def, sizeof(def));
         if (err != OK) {
             ALOGE("setupFlacCodec(): Error %d setting OMX_IndexParamAudioFlac parameter", err);
             return err;
@@ -2977,8 +2983,8 @@
     InitOMXParams(&def);
     def.nPortIndex = portIndex;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2986,8 +2992,8 @@
 
     def.format.audio.eEncoding = OMX_AUDIO_CodingPCM;
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2997,8 +3003,8 @@
     InitOMXParams(&pcmParams);
     pcmParams.nPortIndex = portIndex;
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
 
     if (err != OK) {
         return err;
@@ -3029,15 +3035,15 @@
         return OMX_ErrorNone;
     }
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
     // if we could not set up raw format to non-16-bit, try with 16-bit
     // NOTE: we will also verify this via readback, in case codec ignores these fields
     if (err != OK && encoding != kAudioEncodingPcm16bit) {
         pcmParams.eNumData = OMX_NumericalDataSigned;
         pcmParams.nBitPerSample = 16;
-        err = mOMX->setParameter(
-                mNode, OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
+        err = mOMXNode->setParameter(
+                OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
     }
     return err;
 }
@@ -3046,8 +3052,8 @@
         int32_t audioHwSync, const sp<ANativeWindow> &nativeWindow) {
     native_handle_t* sidebandHandle;
 
-    status_t err = mOMX->configureVideoTunnelMode(
-            mNode, kPortIndexOutput, OMX_TRUE, audioHwSync, &sidebandHandle);
+    status_t err = mOMXNode->configureVideoTunnelMode(
+            kPortIndexOutput, OMX_TRUE, audioHwSync, &sidebandHandle);
     if (err != OK) {
         ALOGE("configureVideoTunnelMode failed! (err %d).", err);
         return err;
@@ -3076,8 +3082,8 @@
 
     for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
         format.nIndex = index;
-        status_t err = mOMX->getParameter(
-                mNode, OMX_IndexParamVideoPortFormat,
+        status_t err = mOMXNode->getParameter(
+                OMX_IndexParamVideoPortFormat,
                 &format, sizeof(format));
 
         if (err != OK) {
@@ -3087,8 +3093,8 @@
         // substitute back flexible color format to codec supported format
         OMX_U32 flexibleEquivalent;
         if (compressionFormat == OMX_VIDEO_CodingUnused
-                && isFlexibleColorFormat(
-                        mOMX, mNode, format.eColorFormat, usingNativeBuffers, &flexibleEquivalent)
+                && IsFlexibleColorFormat(
+                        mOMXNode, format.eColorFormat, usingNativeBuffers, &flexibleEquivalent)
                 && colorFormat == flexibleEquivalent) {
             ALOGI("[%s] using color format %#x in place of %#x",
                     mComponentName.c_str(), format.eColorFormat, colorFormat);
@@ -3131,9 +3137,8 @@
         return UNKNOWN_ERROR;
     }
 
-    status_t err = mOMX->setParameter(
-            mNode, OMX_IndexParamVideoPortFormat,
-            &format, sizeof(format));
+    status_t err = mOMXNode->setParameter(
+            OMX_IndexParamVideoPortFormat, &format, sizeof(format));
 
     return err;
 }
@@ -3163,9 +3168,8 @@
 
     for (OMX_U32 index = 0; ; ++index) {
         format.nIndex = index;
-        status_t err = mOMX->getParameter(
-                mNode, OMX_IndexParamVideoPortFormat,
-                &format, sizeof(format));
+        status_t err = mOMXNode->getParameter(
+                OMX_IndexParamVideoPortFormat, &format, sizeof(format));
         if (err != OK) {
             // no more formats, pick legacy format if found
             if (legacyFormat.eColorFormat != OMX_COLOR_FormatUnused) {
@@ -3191,16 +3195,15 @@
         // find best legacy non-standard format
         OMX_U32 flexibleEquivalent;
         if (legacyFormat.eColorFormat == OMX_COLOR_FormatUnused
-                && isFlexibleColorFormat(
-                        mOMX, mNode, format.eColorFormat, false /* usingNativeBuffers */,
+                && IsFlexibleColorFormat(
+                        mOMXNode, format.eColorFormat, false /* usingNativeBuffers */,
                         &flexibleEquivalent)
                 && flexibleEquivalent == OMX_COLOR_FormatYUV420Flexible) {
             memcpy(&legacyFormat, &format, sizeof(format));
         }
     }
-    return mOMX->setParameter(
-            mNode, OMX_IndexParamVideoPortFormat,
-            &format, sizeof(format));
+    return mOMXNode->setParameter(
+            OMX_IndexParamVideoPortFormat, &format, sizeof(format));
 }
 
 static const struct VideoCodingMapEntry {
@@ -3256,14 +3259,14 @@
     status_t err;
     ALOGD("Setting [%s] %s port buffer number: %d", mComponentName.c_str(),
             portIndex == kPortIndexInput ? "input" : "output", bufferNum);
-    err = mOMX->getParameter(
-        mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->getParameter(
+        OMX_IndexParamPortDefinition, &def, sizeof(def));
     if (err != OK) {
         return err;
     }
     def.nBufferCountActual = bufferNum;
-    err = mOMX->setParameter(
-        mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+        OMX_IndexParamPortDefinition, &def, sizeof(def));
     if (err != OK) {
         // Component could reject this request.
         ALOGW("Fail to set [%s] %s port buffer number: %d", mComponentName.c_str(),
@@ -3294,11 +3297,9 @@
         params.nPortIndex = kPortIndexInput;
         // Check if VP9 decoder advertises supported profiles.
         params.nProfileIndex = 0;
-        status_t err = mOMX->getParameter(
-                mNode,
+        status_t err = mOMXNode->getParameter(
                 OMX_IndexParamVideoProfileLevelQuerySupported,
-                &params,
-                sizeof(params));
+                &params, sizeof(params));
         mIsLegacyVP9Decoder = err != OK;
     }
 
@@ -3387,8 +3388,8 @@
 }
 
 status_t ACodec::initDescribeColorAspectsIndex() {
-    status_t err = mOMX->getExtensionIndex(
-            mNode, "OMX.google.android.index.describeColorAspects", &mDescribeColorAspectsIndex);
+    status_t err = mOMXNode->getExtensionIndex(
+            "OMX.google.android.index.describeColorAspects", &mDescribeColorAspectsIndex);
     if (err != OK) {
         mDescribeColorAspectsIndex = (OMX_INDEXTYPE)0;
     }
@@ -3398,7 +3399,7 @@
 status_t ACodec::setCodecColorAspects(DescribeColorAspectsParams &params, bool verify) {
     status_t err = ERROR_UNSUPPORTED;
     if (mDescribeColorAspectsIndex) {
-        err = mOMX->setConfig(mNode, mDescribeColorAspectsIndex, &params, sizeof(params));
+        err = mOMXNode->setConfig(mDescribeColorAspectsIndex, &params, sizeof(params));
     }
     ALOGV("[%s] setting color aspects (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
             mComponentName.c_str(),
@@ -3443,7 +3444,7 @@
 status_t ACodec::getCodecColorAspects(DescribeColorAspectsParams &params) {
     status_t err = ERROR_UNSUPPORTED;
     if (mDescribeColorAspectsIndex) {
-        err = mOMX->getConfig(mNode, mDescribeColorAspectsIndex, &params, sizeof(params));
+        err = mOMXNode->getConfig(mDescribeColorAspectsIndex, &params, sizeof(params));
     }
     ALOGV("[%s] got color aspects (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
             mComponentName.c_str(),
@@ -3665,8 +3666,8 @@
 }
 
 status_t ACodec::initDescribeHDRStaticInfoIndex() {
-    status_t err = mOMX->getExtensionIndex(
-            mNode, "OMX.google.android.index.describeHDRStaticInfo", &mDescribeHDRStaticInfoIndex);
+    status_t err = mOMXNode->getExtensionIndex(
+            "OMX.google.android.index.describeHDRStaticInfo", &mDescribeHDRStaticInfoIndex);
     if (err != OK) {
         mDescribeHDRStaticInfoIndex = (OMX_INDEXTYPE)0;
     }
@@ -3676,7 +3677,7 @@
 status_t ACodec::setHDRStaticInfo(const DescribeHDRStaticInfoParams &params) {
     status_t err = ERROR_UNSUPPORTED;
     if (mDescribeHDRStaticInfoIndex) {
-        err = mOMX->setConfig(mNode, mDescribeHDRStaticInfoIndex, &params, sizeof(params));
+        err = mOMXNode->setConfig(mDescribeHDRStaticInfoIndex, &params, sizeof(params));
     }
 
     const HDRStaticInfo *info = &params.sInfo;
@@ -3697,7 +3698,7 @@
 status_t ACodec::getHDRStaticInfo(DescribeHDRStaticInfoParams &params) {
     status_t err = ERROR_UNSUPPORTED;
     if (mDescribeHDRStaticInfoIndex) {
-        err = mOMX->getConfig(mNode, mDescribeHDRStaticInfoIndex, &params, sizeof(params));
+        err = mOMXNode->getConfig(mDescribeHDRStaticInfoIndex, &params, sizeof(params));
     }
 
     ALOGW_IF(err == ERROR_UNSUPPORTED && mDescribeHDRStaticInfoIndex,
@@ -3736,8 +3737,8 @@
 
     def.nPortIndex = kPortIndexInput;
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -3769,17 +3770,18 @@
 
     def.nBufferSize = (video_def->nStride * video_def->nSliceHeight * 3) / 2;
 
-    float frameRate;
-    if (!msg->findFloat("frame-rate", &frameRate)) {
+    float framerate;
+    if (!msg->findFloat("frame-rate", &framerate)) {
         int32_t tmp;
         if (!msg->findInt32("frame-rate", &tmp)) {
             return INVALID_OPERATION;
         }
-        frameRate = (float)tmp;
-        mTimePerFrameUs = (int64_t) (1000000.0f / frameRate);
+        mFps = (double)tmp;
+    } else {
+        mFps = (double)framerate;
     }
 
-    video_def->xFramerate = (OMX_U32)(frameRate * 65536.0f);
+    video_def->xFramerate = (OMX_U32)(mFps * 65536);
     video_def->eCompressionFormat = OMX_VIDEO_CodingUnused;
     // this is redundant as it was already set up in setVideoPortFormatType
     // FIXME for now skip this only for flexible YUV formats
@@ -3787,8 +3789,8 @@
         video_def->eColorFormat = colorFormat;
     }
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         ALOGE("[%s] failed to set input port definition parameters.",
@@ -3818,8 +3820,8 @@
 
     def.nPortIndex = kPortIndexOutput;
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -3832,8 +3834,8 @@
     video_def->eCompressionFormat = compressionFormat;
     video_def->eColorFormat = OMX_COLOR_FormatUnused;
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         ALOGE("[%s] failed to set output port definition parameters.",
@@ -3853,6 +3855,8 @@
         }
     }
 
+    configureEncoderLatency(msg);
+
     switch (compressionFormat) {
         case OMX_VIDEO_CodingMPEG4:
             err = setupMPEG4EncoderParameters(msg);
@@ -3962,9 +3966,8 @@
         params.nAirRef = ref;
     }
 
-    status_t err = mOMX->setParameter(
-            mNode, OMX_IndexParamVideoIntraRefresh,
-            &params, sizeof(params));
+    status_t err = mOMXNode->setParameter(
+            OMX_IndexParamVideoIntraRefresh, &params, sizeof(params));
     return err;
 }
 
@@ -4027,8 +4030,8 @@
     InitOMXParams(&mpeg4type);
     mpeg4type.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoMpeg4, &mpeg4type, sizeof(mpeg4type));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamVideoMpeg4, &mpeg4type, sizeof(mpeg4type));
 
     if (err != OK) {
         return err;
@@ -4070,8 +4073,8 @@
         mpeg4type.eLevel = static_cast<OMX_VIDEO_MPEG4LEVELTYPE>(level);
     }
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamVideoMpeg4, &mpeg4type, sizeof(mpeg4type));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamVideoMpeg4, &mpeg4type, sizeof(mpeg4type));
 
     if (err != OK) {
         return err;
@@ -4109,8 +4112,8 @@
     InitOMXParams(&h263type);
     h263type.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoH263, &h263type, sizeof(h263type));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamVideoH263, &h263type, sizeof(h263type));
 
     if (err != OK) {
         return err;
@@ -4147,8 +4150,8 @@
     h263type.nPictureHeaderRepetition = 0;
     h263type.nGOBHeaderInterval = 0;
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamVideoH263, &h263type, sizeof(h263type));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamVideoH263, &h263type, sizeof(h263type));
 
     if (err != OK) {
         return err;
@@ -4249,8 +4252,8 @@
     InitOMXParams(&h264type);
     h264type.nPortIndex = kPortIndexOutput;
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
 
     if (err != OK) {
         return err;
@@ -4313,7 +4316,7 @@
         h264type.nSliceHeaderSpacing = 0;
         h264type.bUseHadamard = OMX_TRUE;
         h264type.nRefFrames = 2;
-        h264type.nBFrames = 1;
+        h264type.nBFrames = mLatency == 0 ? 1 : std::min(1U, mLatency - 1);
         h264type.nPFrames = setPFramesSpacing(iFrameInterval, frameRate, h264type.nBFrames);
         h264type.nAllowedPictureTypes =
             OMX_VIDEO_PictureTypeI | OMX_VIDEO_PictureTypeP | OMX_VIDEO_PictureTypeB;
@@ -4339,8 +4342,8 @@
     h264type.bMBAFF = OMX_FALSE;
     h264type.eLoopFilterMode = OMX_VIDEO_AVCLoopFilterEnable;
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
 
     if (err != OK) {
         return err;
@@ -4356,8 +4359,8 @@
         OMX_VIDEO_PARAM_ANDROID_TEMPORALLAYERINGTYPE layering;
         InitOMXParams(&layering);
         layering.nPortIndex = kPortIndexOutput;
-        if (mOMX->getParameter(
-                        mNode, (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
+        if (mOMXNode->getParameter(
+                        (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
                         &layering, sizeof(layering)) == OK
                 && layering.eSupportedPatterns
                 && layering.nBLayerCountMax == 0) {
@@ -4365,8 +4368,8 @@
             h264type.nPFrames = setPFramesSpacing(iFrameInterval, frameRate, h264type.nBFrames);
             h264type.nAllowedPictureTypes &= ~OMX_VIDEO_PictureTypeB;
             ALOGI("disabling B-frames");
-            err = mOMX->setParameter(
-                    mNode, OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
+            err = mOMXNode->setParameter(
+                    OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
 
             if (err != OK) {
                 return err;
@@ -4401,8 +4404,8 @@
     hevcType.nPortIndex = kPortIndexOutput;
 
     status_t err = OK;
-    err = mOMX->getParameter(
-            mNode, (OMX_INDEXTYPE)OMX_IndexParamVideoHevc, &hevcType, sizeof(hevcType));
+    err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamVideoHevc, &hevcType, sizeof(hevcType));
     if (err != OK) {
         return err;
     }
@@ -4425,8 +4428,8 @@
     // TODO: finer control?
     hevcType.nKeyFrameInterval = setPFramesSpacing(iFrameInterval, frameRate) + 1;
 
-    err = mOMX->setParameter(
-            mNode, (OMX_INDEXTYPE)OMX_IndexParamVideoHevc, &hevcType, sizeof(hevcType));
+    err = mOMXNode->setParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamVideoHevc, &hevcType, sizeof(hevcType));
     if (err != OK) {
         return err;
     }
@@ -4494,8 +4497,8 @@
     OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE vp8type;
     InitOMXParams(&vp8type);
     vp8type.nPortIndex = kPortIndexOutput;
-    status_t err = mOMX->getParameter(
-            mNode, (OMX_INDEXTYPE)OMX_IndexParamVideoAndroidVp8Encoder,
+    status_t err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamVideoAndroidVp8Encoder,
             &vp8type, sizeof(vp8type));
 
     if (err == OK) {
@@ -4515,8 +4518,8 @@
             vp8type.nMaxQuantizer = 63;
         }
 
-        err = mOMX->setParameter(
-                mNode, (OMX_INDEXTYPE)OMX_IndexParamVideoAndroidVp8Encoder,
+        err = mOMXNode->setParameter(
+                (OMX_INDEXTYPE)OMX_IndexParamVideoAndroidVp8Encoder,
                 &vp8type, sizeof(vp8type));
         if (err != OK) {
             ALOGW("Extended VP8 parameters set failed: %d", err);
@@ -4540,11 +4543,9 @@
 
     for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
         params.nProfileIndex = index;
-        status_t err = mOMX->getParameter(
-                mNode,
+        status_t err = mOMXNode->getParameter(
                 OMX_IndexParamVideoProfileLevelQuerySupported,
-                &params,
-                sizeof(params));
+                &params, sizeof(params));
 
         if (err != OK) {
             return err;
@@ -4572,9 +4573,8 @@
     InitOMXParams(&bitrateType);
     bitrateType.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoBitrate,
-            &bitrateType, sizeof(bitrateType));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamVideoBitrate, &bitrateType, sizeof(bitrateType));
 
     if (err != OK) {
         return err;
@@ -4583,9 +4583,31 @@
     bitrateType.eControlRate = bitrateMode;
     bitrateType.nTargetBitrate = bitrate;
 
-    return mOMX->setParameter(
-            mNode, OMX_IndexParamVideoBitrate,
-            &bitrateType, sizeof(bitrateType));
+    return mOMXNode->setParameter(
+            OMX_IndexParamVideoBitrate, &bitrateType, sizeof(bitrateType));
+}
+
+void ACodec::configureEncoderLatency(const sp<AMessage> &msg) {
+    if (!mIsEncoder || !mIsVideo) {
+        return;
+    }
+
+    int32_t latency = 0, bitrateMode;
+    if (msg->findInt32("latency", &latency) && latency > 0) {
+        status_t err = setLatency(latency);
+        if (err != OK) {
+            ALOGW("[%s] failed setLatency. Failure is fine since this key is optional",
+                    mComponentName.c_str());
+            err = OK;
+        } else {
+            mLatency = latency;
+        }
+    } else if ((!msg->findInt32("bitrate-mode", &bitrateMode) &&
+            bitrateMode == OMX_Video_ControlRateConstant)) {
+        // default the latency to be 1 if latency key is not specified or unsupported and bitrateMode
+        // is CBR.
+        mLatency = 1;
+    }
 }
 
 status_t ACodec::setupErrorCorrectionParameters() {
@@ -4593,8 +4615,8 @@
     InitOMXParams(&errorCorrectionType);
     errorCorrectionType.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoErrorCorrection,
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamVideoErrorCorrection,
             &errorCorrectionType, sizeof(errorCorrectionType));
 
     if (err != OK) {
@@ -4607,8 +4629,8 @@
     errorCorrectionType.bEnableDataPartitioning = OMX_FALSE;
     errorCorrectionType.bEnableRVLC = OMX_FALSE;
 
-    return mOMX->setParameter(
-            mNode, OMX_IndexParamVideoErrorCorrection,
+    return mOMXNode->setParameter(
+            OMX_IndexParamVideoErrorCorrection,
             &errorCorrectionType, sizeof(errorCorrectionType));
 }
 
@@ -4622,8 +4644,8 @@
 
     OMX_VIDEO_PORTDEFINITIONTYPE *video_def = &def.format.video;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
     if (err != OK) {
         return err;
     }
@@ -4652,21 +4674,12 @@
         }
     }
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     return err;
 }
 
-status_t ACodec::initNativeWindow() {
-    if (mNativeWindow != NULL) {
-        return mOMX->enableNativeBuffers(mNode, kPortIndexOutput, OMX_TRUE /* graphic */, OMX_TRUE);
-    }
-
-    mOMX->enableNativeBuffers(mNode, kPortIndexOutput, OMX_TRUE /* graphic */, OMX_FALSE);
-    return OK;
-}
-
 size_t ACodec::countBuffersOwnedByComponent(OMX_U32 portIndex) const {
     size_t n = 0;
 
@@ -4745,195 +4758,13 @@
     }
 }
 
-// static
-bool ACodec::describeDefaultColorFormat(DescribeColorFormat2Params &params) {
-    MediaImage2 &image = params.sMediaImage;
-    memset(&image, 0, sizeof(image));
-
-    image.mType = MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
-    image.mNumPlanes = 0;
-
-    const OMX_COLOR_FORMATTYPE fmt = params.eColorFormat;
-    image.mWidth = params.nFrameWidth;
-    image.mHeight = params.nFrameHeight;
-
-    // only supporting YUV420
-    if (fmt != OMX_COLOR_FormatYUV420Planar &&
-        fmt != OMX_COLOR_FormatYUV420PackedPlanar &&
-        fmt != OMX_COLOR_FormatYUV420SemiPlanar &&
-        fmt != OMX_COLOR_FormatYUV420PackedSemiPlanar &&
-        fmt != (OMX_COLOR_FORMATTYPE)HAL_PIXEL_FORMAT_YV12) {
-        ALOGW("do not know color format 0x%x = %d", fmt, fmt);
-        return false;
-    }
-
-    // TEMPORARY FIX for some vendors that advertise sliceHeight as 0
-    if (params.nStride != 0 && params.nSliceHeight == 0) {
-        ALOGW("using sliceHeight=%u instead of what codec advertised (=0)",
-                params.nFrameHeight);
-        params.nSliceHeight = params.nFrameHeight;
-    }
-
-    // we need stride and slice-height to be non-zero and sensible. These values were chosen to
-    // prevent integer overflows further down the line, and do not indicate support for
-    // 32kx32k video.
-    if (params.nStride == 0 || params.nSliceHeight == 0
-            || params.nStride > 32768 || params.nSliceHeight > 32768) {
-        ALOGW("cannot describe color format 0x%x = %d with stride=%u and sliceHeight=%u",
-                fmt, fmt, params.nStride, params.nSliceHeight);
-        return false;
-    }
-
-    // set-up YUV format
-    image.mType = MediaImage2::MEDIA_IMAGE_TYPE_YUV;
-    image.mNumPlanes = 3;
-    image.mBitDepth = 8;
-    image.mBitDepthAllocated = 8;
-    image.mPlane[image.Y].mOffset = 0;
-    image.mPlane[image.Y].mColInc = 1;
-    image.mPlane[image.Y].mRowInc = params.nStride;
-    image.mPlane[image.Y].mHorizSubsampling = 1;
-    image.mPlane[image.Y].mVertSubsampling = 1;
-
-    switch ((int)fmt) {
-        case HAL_PIXEL_FORMAT_YV12:
-            if (params.bUsingNativeBuffers) {
-                size_t ystride = align(params.nStride, 16);
-                size_t cstride = align(params.nStride / 2, 16);
-                image.mPlane[image.Y].mRowInc = ystride;
-
-                image.mPlane[image.V].mOffset = ystride * params.nSliceHeight;
-                image.mPlane[image.V].mColInc = 1;
-                image.mPlane[image.V].mRowInc = cstride;
-                image.mPlane[image.V].mHorizSubsampling = 2;
-                image.mPlane[image.V].mVertSubsampling = 2;
-
-                image.mPlane[image.U].mOffset = image.mPlane[image.V].mOffset
-                        + (cstride * params.nSliceHeight / 2);
-                image.mPlane[image.U].mColInc = 1;
-                image.mPlane[image.U].mRowInc = cstride;
-                image.mPlane[image.U].mHorizSubsampling = 2;
-                image.mPlane[image.U].mVertSubsampling = 2;
-                break;
-            } else {
-                // fall through as YV12 is used for YUV420Planar by some codecs
-            }
-
-        case OMX_COLOR_FormatYUV420Planar:
-        case OMX_COLOR_FormatYUV420PackedPlanar:
-            image.mPlane[image.U].mOffset = params.nStride * params.nSliceHeight;
-            image.mPlane[image.U].mColInc = 1;
-            image.mPlane[image.U].mRowInc = params.nStride / 2;
-            image.mPlane[image.U].mHorizSubsampling = 2;
-            image.mPlane[image.U].mVertSubsampling = 2;
-
-            image.mPlane[image.V].mOffset = image.mPlane[image.U].mOffset
-                    + (params.nStride * params.nSliceHeight / 4);
-            image.mPlane[image.V].mColInc = 1;
-            image.mPlane[image.V].mRowInc = params.nStride / 2;
-            image.mPlane[image.V].mHorizSubsampling = 2;
-            image.mPlane[image.V].mVertSubsampling = 2;
-            break;
-
-        case OMX_COLOR_FormatYUV420SemiPlanar:
-            // FIXME: NV21 for sw-encoder, NV12 for decoder and hw-encoder
-        case OMX_COLOR_FormatYUV420PackedSemiPlanar:
-            // NV12
-            image.mPlane[image.U].mOffset = params.nStride * params.nSliceHeight;
-            image.mPlane[image.U].mColInc = 2;
-            image.mPlane[image.U].mRowInc = params.nStride;
-            image.mPlane[image.U].mHorizSubsampling = 2;
-            image.mPlane[image.U].mVertSubsampling = 2;
-
-            image.mPlane[image.V].mOffset = image.mPlane[image.U].mOffset + 1;
-            image.mPlane[image.V].mColInc = 2;
-            image.mPlane[image.V].mRowInc = params.nStride;
-            image.mPlane[image.V].mHorizSubsampling = 2;
-            image.mPlane[image.V].mVertSubsampling = 2;
-            break;
-
-        default:
-            TRESPASS();
-    }
-    return true;
-}
-
-// static
-bool ACodec::describeColorFormat(
-        const sp<IOMX> &omx, IOMX::node_id node,
-        DescribeColorFormat2Params &describeParams)
-{
-    OMX_INDEXTYPE describeColorFormatIndex;
-    if (omx->getExtensionIndex(
-            node, "OMX.google.android.index.describeColorFormat",
-            &describeColorFormatIndex) == OK) {
-        DescribeColorFormatParams describeParamsV1(describeParams);
-        if (omx->getParameter(
-                node, describeColorFormatIndex,
-                &describeParamsV1, sizeof(describeParamsV1)) == OK) {
-            describeParams.initFromV1(describeParamsV1);
-            return describeParams.sMediaImage.mType != MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
-        }
-    } else if (omx->getExtensionIndex(
-            node, "OMX.google.android.index.describeColorFormat2", &describeColorFormatIndex) == OK
-               && omx->getParameter(
-            node, describeColorFormatIndex, &describeParams, sizeof(describeParams)) == OK) {
-        return describeParams.sMediaImage.mType != MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
-    }
-
-    return describeDefaultColorFormat(describeParams);
-}
-
-// static
-bool ACodec::isFlexibleColorFormat(
-         const sp<IOMX> &omx, IOMX::node_id node,
-         uint32_t colorFormat, bool usingNativeBuffers, OMX_U32 *flexibleEquivalent) {
-    DescribeColorFormat2Params describeParams;
-    InitOMXParams(&describeParams);
-    describeParams.eColorFormat = (OMX_COLOR_FORMATTYPE)colorFormat;
-    // reasonable dummy values
-    describeParams.nFrameWidth = 128;
-    describeParams.nFrameHeight = 128;
-    describeParams.nStride = 128;
-    describeParams.nSliceHeight = 128;
-    describeParams.bUsingNativeBuffers = (OMX_BOOL)usingNativeBuffers;
-
-    CHECK(flexibleEquivalent != NULL);
-
-    if (!describeColorFormat(omx, node, describeParams)) {
-        return false;
-    }
-
-    const MediaImage2 &img = describeParams.sMediaImage;
-    if (img.mType == MediaImage2::MEDIA_IMAGE_TYPE_YUV) {
-        if (img.mNumPlanes != 3
-                || img.mPlane[img.Y].mHorizSubsampling != 1
-                || img.mPlane[img.Y].mVertSubsampling != 1) {
-            return false;
-        }
-
-        // YUV 420
-        if (img.mPlane[img.U].mHorizSubsampling == 2
-                && img.mPlane[img.U].mVertSubsampling == 2
-                && img.mPlane[img.V].mHorizSubsampling == 2
-                && img.mPlane[img.V].mVertSubsampling == 2) {
-            // possible flexible YUV420 format
-            if (img.mBitDepth <= 8) {
-               *flexibleEquivalent = OMX_COLOR_FormatYUV420Flexible;
-               return true;
-            }
-        }
-    }
-    return false;
-}
-
 status_t ACodec::getPortFormat(OMX_U32 portIndex, sp<AMessage> &notify) {
     const char *niceIndex = portIndex == kPortIndexInput ? "input" : "output";
     OMX_PARAM_PORTDEFINITIONTYPE def;
     InitOMXParams(&def);
     def.nPortIndex = portIndex;
 
-    status_t err = mOMX->getParameter(mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(OMX_IndexParamPortDefinition, &def, sizeof(def));
     if (err != OK) {
         return err;
     }
@@ -4967,7 +4798,7 @@
                         describeParams.nSliceHeight = videoDef->nSliceHeight;
                         describeParams.bUsingNativeBuffers = OMX_FALSE;
 
-                        if (describeColorFormat(mOMX, mNode, describeParams)) {
+                        if (DescribeColorFormat(mOMXNode, describeParams)) {
                             notify->setBuffer(
                                     "image-data",
                                     ABuffer::CreateAsCopy(
@@ -4992,8 +4823,7 @@
                         InitOMXParams(&rect);
                         rect.nPortIndex = portIndex;
 
-                        if (mOMX->getConfig(
-                                    mNode,
+                        if (mOMXNode->getConfig(
                                     (portIndex == kPortIndexOutput ?
                                             OMX_IndexConfigCommonOutputCrop :
                                             OMX_IndexConfigCommonInputCrop),
@@ -5038,6 +4868,10 @@
                         if (mConfigFormat->contains("hdr-static-info")) {
                             (void)getHDRStaticInfoForVideoCodec(kPortIndexInput, notify);
                         }
+                        uint32_t latency = 0;
+                        if (mIsEncoder && getLatency(&latency) == OK && latency > 0) {
+                            notify->setInt32("latency", latency);
+                        }
                     }
 
                     break;
@@ -5049,8 +4883,7 @@
                     OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE vp8type;
                     InitOMXParams(&vp8type);
                     vp8type.nPortIndex = kPortIndexOutput;
-                    status_t err = mOMX->getParameter(
-                            mNode,
+                    status_t err = mOMXNode->getParameter(
                             (OMX_INDEXTYPE)OMX_IndexParamVideoAndroidVp8Encoder,
                             &vp8type,
                             sizeof(vp8type));
@@ -5119,8 +4952,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioPcm, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioPcm, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5167,8 +5000,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioAac, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioAac, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5185,8 +5018,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioAmr, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioAmr, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5208,8 +5041,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioFlac, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioFlac, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5226,8 +5059,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioMp3, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioMp3, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5244,8 +5077,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioVorbis, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioVorbis, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5262,8 +5095,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3,
+                    err = mOMXNode->getParameter(
+                            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3,
                             &params, sizeof(params));
                     if (err != OK) {
                         return err;
@@ -5281,8 +5114,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3,
+                    err = mOMXNode->getParameter(
+                            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3,
                             &params, sizeof(params));
                     if (err != OK) {
                         return err;
@@ -5300,8 +5133,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidOpus,
+                    err = mOMXNode->getParameter(
+                            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidOpus,
                             &params, sizeof(params));
                     if (err != OK) {
                         return err;
@@ -5319,8 +5152,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, (OMX_INDEXTYPE)OMX_IndexParamAudioPcm, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            (OMX_INDEXTYPE)OMX_IndexParamAudioPcm, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5346,8 +5179,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                                mNode, OMX_IndexParamAudioPcm, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                                OMX_IndexParamAudioPcm, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5371,7 +5204,7 @@
             return BAD_TYPE;
     }
 
-    return OK;
+    return getVendorParameters(portIndex, notify);
 }
 
 void ACodec::onDataSpaceChanged(android_dataspace dataSpace, const ColorAspects &aspects) {
@@ -5449,32 +5282,19 @@
     }
 }
 
-void ACodec::addKeyFormatChangesToRenderBufferNotification(sp<AMessage> &notify) {
-    AString mime;
-    CHECK(mOutputFormat->findString("mime", &mime));
-
-    if (mime == MEDIA_MIMETYPE_VIDEO_RAW && mNativeWindow != NULL) {
-        // notify renderer of the crop change and dataspace change
-        // NOTE: native window uses extended right-bottom coordinate
-        int32_t left, top, right, bottom;
-        if (mOutputFormat->findRect("crop", &left, &top, &right, &bottom)) {
-            notify->setRect("crop", left, top, right + 1, bottom + 1);
-        }
-
-        int32_t dataSpace;
-        if (mOutputFormat->findInt32("android._dataspace", &dataSpace)) {
-            notify->setInt32("dataspace", dataSpace);
-        }
-    }
-}
-
 void ACodec::sendFormatChange() {
     AString mime;
     CHECK(mOutputFormat->findString("mime", &mime));
 
     if (mime == MEDIA_MIMETYPE_AUDIO_RAW && (mEncoderDelay || mEncoderPadding)) {
-        int32_t channelCount;
+        int32_t channelCount, sampleRate;
         CHECK(mOutputFormat->findInt32("channel-count", &channelCount));
+        CHECK(mOutputFormat->findInt32("sample-rate", &sampleRate));
+        if (mSampleRate != 0 && sampleRate != 0) {
+            mEncoderDelay = mEncoderDelay * sampleRate / mSampleRate;
+            mEncoderPadding = mEncoderPadding * sampleRate / mSampleRate;
+            mSampleRate = sampleRate;
+        }
         if (mSkipCutBuffer != NULL) {
             size_t prevbufsize = mSkipCutBuffer->size();
             if (prevbufsize != 0) {
@@ -5484,18 +5304,11 @@
         mSkipCutBuffer = new SkipCutBuffer(mEncoderDelay, mEncoderPadding, channelCount);
     }
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", kWhatOutputFormatChanged);
-    notify->setMessage("format", mOutputFormat);
-    notify->post();
-
     // mLastOutputFormat is not used when tunneled; doing this just to stay consistent
     mLastOutputFormat = mOutputFormat;
 }
 
 void ACodec::signalError(OMX_ERRORTYPE error, status_t internalError) {
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatError);
     ALOGE("signalError(omxError %#x, internalError %d)", error, internalError);
 
     if (internalError == UNKNOWN_ERROR) { // find better error code
@@ -5508,15 +5321,7 @@
     }
 
     mFatalError = true;
-
-    notify->setInt32("err", internalError);
-    notify->setInt32("actionCode", ACTION_CODE_FATAL); // could translate from OMX error.
-    notify->post();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-ACodec::PortDescription::PortDescription() {
+    mCallback->onError(internalError, ACTION_CODE_FATAL);
 }
 
 status_t ACodec::requestIDRFrame() {
@@ -5530,42 +5335,12 @@
     params.nPortIndex = kPortIndexOutput;
     params.IntraRefreshVOP = OMX_TRUE;
 
-    return mOMX->setConfig(
-            mNode,
+    return mOMXNode->setConfig(
             OMX_IndexConfigVideoIntraVOPRefresh,
             &params,
             sizeof(params));
 }
 
-void ACodec::PortDescription::addBuffer(
-        IOMX::buffer_id id, const sp<ABuffer> &buffer,
-        const sp<NativeHandle> &handle, const sp<RefBase> &memRef) {
-    mBufferIDs.push_back(id);
-    mBuffers.push_back(buffer);
-    mHandles.push_back(handle);
-    mMemRefs.push_back(memRef);
-}
-
-size_t ACodec::PortDescription::countBuffers() {
-    return mBufferIDs.size();
-}
-
-IOMX::buffer_id ACodec::PortDescription::bufferIDAt(size_t index) const {
-    return mBufferIDs.itemAt(index);
-}
-
-sp<ABuffer> ACodec::PortDescription::bufferAt(size_t index) const {
-    return mBuffers.itemAt(index);
-}
-
-sp<NativeHandle> ACodec::PortDescription::handleAt(size_t index) const {
-    return mHandles.itemAt(index);
-}
-
-sp<RefBase> ACodec::PortDescription::memRefAt(size_t index) const {
-    return mMemRefs.itemAt(index);
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 
 ACodec::BaseState::BaseState(ACodec *codec, const sp<AState> &parentState)
@@ -5578,6 +5353,10 @@
     return KEEP_BUFFERS;
 }
 
+void ACodec::BaseState::stateExited() {
+    ++mCodec->mStateGeneration;
+}
+
 bool ACodec::BaseState::onMessageReceived(const sp<AMessage> &msg) {
     switch (msg->what()) {
         case kWhatInputBufferFilled:
@@ -5638,6 +5417,7 @@
         {
             // This will result in kFlagSawMediaServerDie handling in MediaCodec.
             ALOGE("OMX/mediaserver died, signalling error!");
+            mCodec->mGraphicBufferSource.clear();
             mCodec->signalError(OMX_ErrorResourcesLost, DEAD_OBJECT);
             break;
         }
@@ -5646,12 +5426,18 @@
         {
             ALOGI("[%s] forcing the release of codec",
                     mCodec->mComponentName.c_str());
-            status_t err = mCodec->mOMX->freeNode(mCodec->mNode);
+            status_t err = mCodec->mOMXNode->freeNode();
             ALOGE_IF("[%s] failed to release codec instance: err=%d",
                        mCodec->mComponentName.c_str(), err);
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatShutdownCompleted);
-            notify->post();
+            mCodec->mCallback->onReleaseCompleted();
+
+            mCodec->changeState(mCodec->mUninitializedState);
+            break;
+        }
+
+        case ACodec::kWhatForceStateTransition:
+        {
+            ALOGV("Already transitioned --- ignore");
             break;
         }
 
@@ -5665,16 +5451,17 @@
 bool ACodec::BaseState::checkOMXMessage(const sp<AMessage> &msg) {
     // there is a possibility that this is an outstanding message for a
     // codec that we have already destroyed
-    if (mCodec->mNode == 0) {
+    if (mCodec->mOMXNode == NULL) {
         ALOGI("ignoring message as already freed component: %s",
                 msg->debugString().c_str());
         return false;
     }
 
-    IOMX::node_id nodeID;
-    CHECK(msg->findInt32("node", (int32_t*)&nodeID));
-    if (nodeID != mCodec->mNode) {
-        ALOGE("Unexpected message for nodeID: %u, should have been %u", nodeID, mCodec->mNode);
+    int32_t generation;
+    CHECK(msg->findInt32("generation", (int32_t*)&generation));
+    if (generation != mCodec->mNodeGeneration) {
+        ALOGW("Unexpected message for component: %s, gen %u, cur %u",
+                msg->debugString().c_str(), generation, mCodec->mNodeGeneration);
         return false;
     }
     return true;
@@ -5792,11 +5579,7 @@
 bool ACodec::BaseState::onOMXEvent(
         OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2) {
     if (event == OMX_EventDataSpaceChanged) {
-        ColorAspects aspects;
-        aspects.mRange = (ColorAspects::Range)((data2 >> 24) & 0xFF);
-        aspects.mPrimaries = (ColorAspects::Primaries)((data2 >> 16) & 0xFF);
-        aspects.mMatrixCoeffs = (ColorAspects::MatrixCoeffs)((data2 >> 8) & 0xFF);
-        aspects.mTransfer = (ColorAspects::Transfer)(data2 & 0xFF);
+        ColorAspects aspects = ColorUtils::unpackToColorAspects(data2);
 
         mCodec->onDataSpaceChanged((android_dataspace)data1, aspects);
         return true;
@@ -5878,46 +5661,28 @@
 
     CHECK_EQ((int)info->mStatus, (int)BufferInfo::OWNED_BY_US);
 
-    sp<AMessage> notify = mCodec->mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatFillThisBuffer);
-    notify->setInt32("buffer-id", info->mBufferID);
-
-    info->mData->meta()->clear();
-    notify->setBuffer("buffer", info->mData);
-
-    sp<AMessage> reply = new AMessage(kWhatInputBufferFilled, mCodec);
-    reply->setInt32("buffer-id", info->mBufferID);
-
-    notify->setMessage("reply", reply);
-
-    notify->post();
-
+    info->mData->setFormat(mCodec->mInputFormat);
+    mCodec->mBufferChannel->fillThisBuffer(info->mBufferID);
+    info->mData.clear();
     info->mStatus = BufferInfo::OWNED_BY_UPSTREAM;
 }
 
 void ACodec::BaseState::onInputBufferFilled(const sp<AMessage> &msg) {
     IOMX::buffer_id bufferID;
     CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
-    sp<ABuffer> buffer;
+    sp<MediaCodecBuffer> buffer;
     int32_t err = OK;
     bool eos = false;
     PortMode mode = getPortMode(kPortIndexInput);
-
-    if (!msg->findBuffer("buffer", &buffer)) {
-        /* these are unfilled buffers returned by client */
-        CHECK(msg->findInt32("err", &err));
-
-        if (err == OK) {
-            /* buffers with no errors are returned on MediaCodec.flush */
-            mode = KEEP_BUFFERS;
-        } else {
-            ALOGV("[%s] saw error %d instead of an input buffer",
-                 mCodec->mComponentName.c_str(), err);
-            eos = true;
-        }
-
-        buffer.clear();
+    int32_t discarded = 0;
+    if (msg->findInt32("discarded", &discarded) && discarded) {
+        // these are unfilled buffers returned by client
+        // buffers are returned on MediaCodec.flush
+        mode = KEEP_BUFFERS;
     }
+    sp<RefBase> obj;
+    CHECK(msg->findObject("buffer", &obj));
+    buffer = static_cast<MediaCodecBuffer *>(obj.get());
 
     int32_t tmp;
     if (buffer != NULL && buffer->meta()->findInt32("eos", &tmp) && tmp) {
@@ -5935,6 +5700,7 @@
     }
 
     info->mStatus = BufferInfo::OWNED_BY_US;
+    info->mData = buffer;
 
     switch (mode) {
         case KEEP_BUFFERS:
@@ -5962,7 +5728,6 @@
 
                 OMX_U32 flags = OMX_BUFFERFLAG_ENDOFFRAME;
 
-                MetadataBufferType metaType = mCodec->mInputMetadataType;
                 int32_t isCSD = 0;
                 if (buffer->meta()->findInt32("csd", &isCSD) && isCSD != 0) {
                     if (mCodec->mIsLegacyVP9Decoder) {
@@ -5972,18 +5737,19 @@
                         break;
                     }
                     flags |= OMX_BUFFERFLAG_CODECCONFIG;
-                    metaType = kMetadataBufferTypeInvalid;
                 }
 
                 if (eos) {
                     flags |= OMX_BUFFERFLAG_EOS;
                 }
 
-                if (buffer != info->mCodecData) {
+                size_t size = buffer->size();
+                size_t offset = buffer->offset();
+                if (buffer->base() != info->mCodecData->base()) {
                     ALOGV("[%s] Needs to copy input data for buffer %u. (%p != %p)",
                          mCodec->mComponentName.c_str(),
                          bufferID,
-                         buffer.get(), info->mCodecData.get());
+                         buffer->base(), info->mCodecData->base());
 
                     sp<DataConverter> converter = mCodec->mConverter[kPortIndexInput];
                     if (converter == NULL || isCSD) {
@@ -5994,6 +5760,9 @@
                         mCodec->signalError(OMX_ErrorUndefined, err);
                         return;
                     }
+                    size = info->mCodecData->size();
+                } else {
+                    info->mCodecData->setRange(offset, size);
                 }
 
                 if (flags & OMX_BUFFERFLAG_CODECCONFIG) {
@@ -6034,54 +5803,52 @@
                 info->checkReadFence("onInputBufferFilled");
 
                 status_t err2 = OK;
-                switch (metaType) {
-                case kMetadataBufferTypeInvalid:
+                switch (mCodec->mPortMode[kPortIndexInput]) {
+                case IOMX::kPortModePresetByteBuffer:
+                case IOMX::kPortModePresetANWBuffer:
+                case IOMX::kPortModePresetSecureBuffer:
+                    {
+                        err2 = mCodec->mOMXNode->emptyBuffer(
+                            bufferID, info->mCodecData, flags, timeUs, info->mFenceFd);
+                    }
                     break;
 #ifndef OMX_ANDROID_COMPILE_AS_32BIT_ON_64BIT_PLATFORMS
-                case kMetadataBufferTypeNativeHandleSource:
+                case IOMX::kPortModeDynamicNativeHandle:
                     if (info->mCodecData->size() >= sizeof(VideoNativeHandleMetadata)) {
                         VideoNativeHandleMetadata *vnhmd =
                             (VideoNativeHandleMetadata*)info->mCodecData->base();
-                        err2 = mCodec->mOMX->updateNativeHandleInMeta(
-                                mCodec->mNode, kPortIndexInput,
-                                NativeHandle::create(vnhmd->pHandle, false /* ownsHandle */),
-                                bufferID);
+                        sp<NativeHandle> handle = NativeHandle::create(
+                                vnhmd->pHandle, false /* ownsHandle */);
+                        err2 = mCodec->mOMXNode->emptyBuffer(
+                            bufferID, handle, flags, timeUs, info->mFenceFd);
                     }
                     break;
-                case kMetadataBufferTypeANWBuffer:
+                case IOMX::kPortModeDynamicANWBuffer:
                     if (info->mCodecData->size() >= sizeof(VideoNativeMetadata)) {
                         VideoNativeMetadata *vnmd = (VideoNativeMetadata*)info->mCodecData->base();
-                        err2 = mCodec->mOMX->updateGraphicBufferInMeta(
-                                mCodec->mNode, kPortIndexInput,
-                                new GraphicBuffer(vnmd->pBuffer, false /* keepOwnership */),
-                                bufferID);
+                        sp<GraphicBuffer> graphicBuffer = GraphicBuffer::from(vnmd->pBuffer);
+                        err2 = mCodec->mOMXNode->emptyBuffer(
+                            bufferID, graphicBuffer, flags, timeUs, info->mFenceFd);
                     }
                     break;
 #endif
                 default:
                     ALOGW("Can't marshall %s data in %zu sized buffers in %zu-bit mode",
-                            asString(metaType), info->mCodecData->size(),
+                            asString(mCodec->mPortMode[kPortIndexInput]),
+                            info->mCodecData->size(),
                             sizeof(buffer_handle_t) * 8);
                     err2 = ERROR_UNSUPPORTED;
                     break;
                 }
 
-                if (err2 == OK) {
-                    err2 = mCodec->mOMX->emptyBuffer(
-                        mCodec->mNode,
-                        bufferID,
-                        0,
-                        info->mCodecData->size(),
-                        flags,
-                        timeUs,
-                        info->mFenceFd);
-                }
                 info->mFenceFd = -1;
                 if (err2 != OK) {
                     mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err2));
                     return;
                 }
                 info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
+                // Hold the reference while component is using the buffer.
+                info->mData = buffer;
 
                 if (!eos && err == OK) {
                     getMoreInputDataIfPossible();
@@ -6105,14 +5872,8 @@
                      mCodec->mComponentName.c_str(), bufferID);
 
                 info->checkReadFence("onInputBufferFilled");
-                status_t err2 = mCodec->mOMX->emptyBuffer(
-                        mCodec->mNode,
-                        bufferID,
-                        0,
-                        0,
-                        OMX_BUFFERFLAG_EOS,
-                        0,
-                        info->mFenceFd);
+                status_t err2 = mCodec->mOMXNode->emptyBuffer(
+                        bufferID, OMXBuffer::sPreset, OMX_BUFFERFLAG_EOS, 0, info->mFenceFd);
                 info->mFenceFd = -1;
                 if (err2 != OK) {
                     mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err2));
@@ -6236,56 +5997,46 @@
                 ALOGV("[%s] calling fillBuffer %u",
                      mCodec->mComponentName.c_str(), info->mBufferID);
 
-                err = mCodec->mOMX->fillBuffer(mCodec->mNode, info->mBufferID, info->mFenceFd);
-                info->mFenceFd = -1;
+                err = mCodec->fillBuffer(info);
                 if (err != OK) {
                     mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err));
                     return true;
                 }
-
-                info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
                 break;
             }
 
-            sp<AMessage> reply =
-                new AMessage(kWhatOutputBufferDrained, mCodec);
+            sp<MediaCodecBuffer> buffer = info->mData;
 
             if (mCodec->mOutputFormat != mCodec->mLastOutputFormat && rangeLength > 0) {
                 // pretend that output format has changed on the first frame (we used to do this)
                 if (mCodec->mBaseOutputFormat == mCodec->mOutputFormat) {
                     mCodec->onOutputFormatChanged(mCodec->mOutputFormat);
                 }
-                mCodec->addKeyFormatChangesToRenderBufferNotification(reply);
                 mCodec->sendFormatChange();
-            } else if (rangeLength > 0 && mCodec->mNativeWindow != NULL) {
-                // If potentially rendering onto a surface, always save key format data (crop &
-                // data space) so that we can set it if and once the buffer is rendered.
-                mCodec->addKeyFormatChangesToRenderBufferNotification(reply);
             }
+            buffer->setFormat(mCodec->mOutputFormat);
 
-            if (mCodec->usingMetadataOnEncoderOutput()) {
+            if (mCodec->usingSecureBufferOnEncoderOutput()) {
                 native_handle_t *handle = NULL;
-                VideoNativeHandleMetadata &nativeMeta =
-                    *(VideoNativeHandleMetadata *)info->mData->data();
-                if (info->mData->size() >= sizeof(nativeMeta)
-                        && nativeMeta.eType == kMetadataBufferTypeNativeHandleSource) {
+                sp<SecureBuffer> secureBuffer = static_cast<SecureBuffer *>(buffer.get());
+                if (secureBuffer != NULL) {
 #ifdef OMX_ANDROID_COMPILE_AS_32BIT_ON_64BIT_PLATFORMS
                     // handle is only valid on 32-bit/mediaserver process
                     handle = NULL;
 #else
-                    handle = (native_handle_t *)nativeMeta.pHandle;
+                    handle = (native_handle_t *)secureBuffer->getDestinationPointer();
 #endif
                 }
-                info->mData->meta()->setPointer("handle", handle);
-                info->mData->meta()->setInt32("rangeOffset", rangeOffset);
-                info->mData->meta()->setInt32("rangeLength", rangeLength);
-            } else if (info->mData == info->mCodecData) {
-                info->mData->setRange(rangeOffset, rangeLength);
+                buffer->meta()->setPointer("handle", handle);
+                buffer->meta()->setInt32("rangeOffset", rangeOffset);
+                buffer->meta()->setInt32("rangeLength", rangeLength);
+            } else if (buffer->base() == info->mCodecData->base()) {
+                buffer->setRange(rangeOffset, rangeLength);
             } else {
                 info->mCodecData->setRange(rangeOffset, rangeLength);
                 // in this case we know that mConverter is not null
                 status_t err = mCodec->mConverter[kPortIndexOutput]->convert(
-                        info->mCodecData, info->mData);
+                        info->mCodecData, buffer);
                 if (err != OK) {
                     mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err));
                     return true;
@@ -6300,32 +6051,20 @@
 #endif
 
             if (mCodec->mSkipCutBuffer != NULL) {
-                mCodec->mSkipCutBuffer->submit(info->mData);
+                mCodec->mSkipCutBuffer->submit(buffer);
             }
-            info->mData->meta()->setInt64("timeUs", timeUs);
+            buffer->meta()->setInt64("timeUs", timeUs);
 
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatDrainThisBuffer);
-            notify->setInt32("buffer-id", info->mBufferID);
-            notify->setBuffer("buffer", info->mData);
-            notify->setInt32("flags", flags);
+            info->mData.clear();
 
-            reply->setInt32("buffer-id", info->mBufferID);
-
-            notify->setMessage("reply", reply);
-
-            notify->post();
+            mCodec->mBufferChannel->drainThisBuffer(info->mBufferID, flags);
 
             info->mStatus = BufferInfo::OWNED_BY_DOWNSTREAM;
 
             if (flags & OMX_BUFFERFLAG_EOS) {
                 ALOGV("[%s] saw output EOS", mCodec->mComponentName.c_str());
 
-                sp<AMessage> notify = mCodec->mNotify->dup();
-                notify->setInt32("what", CodecBase::kWhatEOS);
-                notify->setInt32("err", mCodec->mInputEOSResult);
-                notify->post();
-
+                mCodec->mCallback->onEos(mCodec->mInputEOSResult);
                 mCodec->mPortEOS[kPortIndexOutput] = true;
             }
             break;
@@ -6350,6 +6089,12 @@
 void ACodec::BaseState::onOutputBufferDrained(const sp<AMessage> &msg) {
     IOMX::buffer_id bufferID;
     CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
+    sp<RefBase> obj;
+    CHECK(msg->findObject("buffer", &obj));
+    sp<MediaCodecBuffer> buffer = static_cast<MediaCodecBuffer *>(obj.get());
+    int32_t discarded = 0;
+    msg->findInt32("discarded", &discarded);
+
     ssize_t index;
     BufferInfo *info = mCodec->findBufferByID(kPortIndexOutput, bufferID, &index);
     BufferInfo::Status status = BufferInfo::getSafeStatus(info);
@@ -6359,34 +6104,38 @@
         mCodec->signalError(OMX_ErrorUndefined, FAILED_TRANSACTION);
         return;
     }
-
-    android_native_rect_t crop;
-    if (msg->findRect("crop", &crop.left, &crop.top, &crop.right, &crop.bottom)
-            && memcmp(&crop, &mCodec->mLastNativeWindowCrop, sizeof(crop)) != 0) {
-        mCodec->mLastNativeWindowCrop = crop;
-        status_t err = native_window_set_crop(mCodec->mNativeWindow.get(), &crop);
-        ALOGW_IF(err != NO_ERROR, "failed to set crop: %d", err);
-    }
-
-    int32_t dataSpace;
-    if (msg->findInt32("dataspace", &dataSpace)
-            && dataSpace != mCodec->mLastNativeWindowDataSpace) {
-        status_t err = native_window_set_buffers_data_space(
-                mCodec->mNativeWindow.get(), (android_dataspace)dataSpace);
-        mCodec->mLastNativeWindowDataSpace = dataSpace;
-        ALOGW_IF(err != NO_ERROR, "failed to set dataspace: %d", err);
-    }
-
+    info->mData = buffer;
     int32_t render;
     if (mCodec->mNativeWindow != NULL
             && msg->findInt32("render", &render) && render != 0
-            && info->mData != NULL && info->mData->size() != 0) {
+            && !discarded && buffer->size() != 0) {
         ATRACE_NAME("render");
         // The client wants this buffer to be rendered.
 
+        android_native_rect_t crop;
+        if (buffer->format()->findRect("crop", &crop.left, &crop.top, &crop.right, &crop.bottom)) {
+            // NOTE: native window uses extended right-bottom coordinate
+            ++crop.right;
+            ++crop.bottom;
+            if (memcmp(&crop, &mCodec->mLastNativeWindowCrop, sizeof(crop)) != 0) {
+                mCodec->mLastNativeWindowCrop = crop;
+                status_t err = native_window_set_crop(mCodec->mNativeWindow.get(), &crop);
+                ALOGW_IF(err != NO_ERROR, "failed to set crop: %d", err);
+            }
+        }
+
+        int32_t dataSpace;
+        if (buffer->format()->findInt32("android._dataspace", &dataSpace)
+                && dataSpace != mCodec->mLastNativeWindowDataSpace) {
+            status_t err = native_window_set_buffers_data_space(
+                    mCodec->mNativeWindow.get(), (android_dataspace)dataSpace);
+            mCodec->mLastNativeWindowDataSpace = dataSpace;
+            ALOGW_IF(err != NO_ERROR, "failed to set dataspace: %d", err);
+        }
+
         // save buffers sent to the surface so we can get render time when they return
         int64_t mediaTimeUs = -1;
-        info->mData->meta()->findInt64("timeUs", &mediaTimeUs);
+        buffer->meta()->findInt64("timeUs", &mediaTimeUs);
         if (mediaTimeUs >= 0) {
             mCodec->mRenderTracker.onFrameQueued(
                     mediaTimeUs, info->mGraphicBuffer, new Fence(::dup(info->mFenceFd)));
@@ -6395,7 +6144,7 @@
         int64_t timestampNs = 0;
         if (!msg->findInt64("timestampNs", &timestampNs)) {
             // use media timestamp if client did not request a specific render timestamp
-            if (info->mData->meta()->findInt64("timeUs", &timestampNs)) {
+            if (buffer->meta()->findInt64("timeUs", &timestampNs)) {
                 ALOGV("using buffer PTS of %lld", (long long)timestampNs);
                 timestampNs *= 1000;
             }
@@ -6419,8 +6168,7 @@
             info->mIsReadFence = false;
         }
     } else {
-        if (mCodec->mNativeWindow != NULL &&
-            (info->mData == NULL || info->mData->size() != 0)) {
+        if (mCodec->mNativeWindow != NULL && (discarded || buffer->size() != 0)) {
             // move read fence into write fence to avoid clobbering
             info->mIsReadFence = false;
             ATRACE_NAME("frame-drop");
@@ -6458,12 +6206,8 @@
                     ALOGV("[%s] calling fillBuffer %u",
                          mCodec->mComponentName.c_str(), info->mBufferID);
                     info->checkWriteFence("onOutputBufferDrained::RESUBMIT_BUFFERS");
-                    status_t err = mCodec->mOMX->fillBuffer(
-                            mCodec->mNode, info->mBufferID, info->mFenceFd);
-                    info->mFenceFd = -1;
-                    if (err == OK) {
-                        info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
-                    } else {
+                    status_t err = mCodec->fillBuffer(info);
+                    if (err != OK) {
                         mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err));
                     }
                 }
@@ -6496,19 +6240,26 @@
     ALOGV("Now uninitialized");
 
     if (mDeathNotifier != NULL) {
-        mCodec->mNodeBinder->unlinkToDeath(mDeathNotifier);
+        if (mCodec->mOMXNode != NULL) {
+            if (mCodec->getTrebleFlag()) {
+                auto tOmxNode = mCodec->mOMXNode->getHalInterface();
+                tOmxNode->unlinkToDeath(mDeathNotifier);
+            } else {
+                sp<IBinder> binder = IInterface::asBinder(mCodec->mOMXNode);
+                binder->unlinkToDeath(mDeathNotifier);
+            }
+        }
         mDeathNotifier.clear();
     }
 
     mCodec->mUsingNativeWindow = false;
     mCodec->mNativeWindow.clear();
     mCodec->mNativeWindowUsageBits = 0;
-    mCodec->mNode = 0;
     mCodec->mOMX.clear();
-    mCodec->mQuirks = 0;
+    mCodec->mOMXNode.clear();
     mCodec->mFlags = 0;
-    mCodec->mInputMetadataType = kMetadataBufferTypeInvalid;
-    mCodec->mOutputMetadataType = kMetadataBufferTypeInvalid;
+    mCodec->mPortMode[kPortIndexInput] = IOMX::kPortModePresetByteBuffer;
+    mCodec->mPortMode[kPortIndexOutput] = IOMX::kPortModePresetByteBuffer;
     mCodec->mConverter[0].clear();
     mCodec->mConverter[1].clear();
     mCodec->mComponentName.clear();
@@ -6540,21 +6291,18 @@
                         "keepComponentAllocated", &keepComponentAllocated));
             ALOGW_IF(keepComponentAllocated,
                      "cannot keep component allocated on shutdown in Uninitialized state");
-
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatShutdownCompleted);
-            notify->post();
-
+            if (keepComponentAllocated) {
+                mCodec->mCallback->onStopCompleted();
+            } else {
+                mCodec->mCallback->onReleaseCompleted();
+            }
             handled = true;
             break;
         }
 
         case ACodec::kWhatFlush:
         {
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-            notify->post();
-
+            mCodec->mCallback->onFlushCompleted();
             handled = true;
             break;
         }
@@ -6584,13 +6332,15 @@
 bool ACodec::UninitializedState::onAllocateComponent(const sp<AMessage> &msg) {
     ALOGV("onAllocateComponent");
 
-    CHECK(mCodec->mNode == 0);
+    CHECK(mCodec->mOMXNode == NULL);
 
     OMXClient client;
-    if (client.connect() != OK) {
+    bool trebleFlag;
+    if (client.connect(&trebleFlag) != OK) {
         mCodec->signalError(OMX_ErrorUndefined, NO_INIT);
         return false;
     }
+    mCodec->setTrebleFlag(trebleFlag);
 
     sp<IOMX> omx = client.interface();
 
@@ -6601,7 +6351,6 @@
     AString mime;
 
     AString componentName;
-    uint32_t quirks = 0;
     int32_t encoder = false;
     if (msg->findString("componentName", &componentName)) {
         sp<IMediaCodecList> list = MediaCodecList::getInstance();
@@ -6623,18 +6372,17 @@
     }
 
     sp<CodecObserver> observer = new CodecObserver;
-    IOMX::node_id node = 0;
+    sp<IOMXNode> omxNode;
 
     status_t err = NAME_NOT_FOUND;
     for (size_t matchIndex = 0; matchIndex < matchingCodecs.size();
             ++matchIndex) {
         componentName = matchingCodecs[matchIndex];
-        quirks = MediaCodecList::getQuirksFor(componentName.c_str());
 
         pid_t tid = gettid();
         int prevPriority = androidGetThreadPriority(tid);
         androidSetThreadPriority(tid, ANDROID_PRIORITY_FOREGROUND);
-        err = omx->allocateNode(componentName.c_str(), observer, &mCodec->mNodeBinder, &node);
+        err = omx->allocateNode(componentName.c_str(), observer, &omxNode);
         androidSetThreadPriority(tid, prevPriority);
 
         if (err == OK) {
@@ -6643,10 +6391,10 @@
             ALOGW("Allocating component '%s' failed, try next one.", componentName.c_str());
         }
 
-        node = 0;
+        omxNode = NULL;
     }
 
-    if (node == 0) {
+    if (omxNode == NULL) {
         if (!mime.empty()) {
             ALOGE("Unable to instantiate a %scoder for type '%s' with err %#x.",
                     encoder ? "en" : "de", mime.c_str(), err);
@@ -6659,14 +6407,21 @@
     }
 
     mDeathNotifier = new DeathNotifier(notify);
-    if (mCodec->mNodeBinder == NULL ||
-            mCodec->mNodeBinder->linkToDeath(mDeathNotifier) != OK) {
-        // This was a local binder, if it dies so do we, we won't care
-        // about any notifications in the afterlife.
-        mDeathNotifier.clear();
+    if (mCodec->getTrebleFlag()) {
+        auto tOmxNode = omxNode->getHalInterface();
+        if (!tOmxNode->linkToDeath(mDeathNotifier, 0)) {
+            mDeathNotifier.clear();
+        }
+    } else {
+        if (IInterface::asBinder(omxNode)->linkToDeath(mDeathNotifier) != OK) {
+            // This was a local binder, if it dies so do we, we won't care
+            // about any notifications in the afterlife.
+            mDeathNotifier.clear();
+        }
     }
 
     notify = new AMessage(kWhatOMXMessageList, mCodec);
+    notify->setInt32("generation", ++mCodec->mNodeGeneration);
     observer->setNotificationMessage(notify);
 
     mCodec->mComponentName = componentName;
@@ -6679,17 +6434,9 @@
         mCodec->mFlags |= kFlagPushBlankBuffersToNativeWindowOnShutdown;
     }
 
-    mCodec->mQuirks = quirks;
     mCodec->mOMX = omx;
-    mCodec->mNode = node;
-
-    {
-        sp<AMessage> notify = mCodec->mNotify->dup();
-        notify->setInt32("what", CodecBase::kWhatComponentAllocated);
-        notify->setString("componentName", mCodec->mComponentName.c_str());
-        notify->post();
-    }
-
+    mCodec->mOMXNode = omxNode;
+    mCodec->mCallback->onComponentAllocated(mCodec->mComponentName.c_str());
     mCodec->changeState(mCodec->mLoadedState);
 
     return true;
@@ -6715,6 +6462,7 @@
     mCodec->mInputFormat.clear();
     mCodec->mOutputFormat.clear();
     mCodec->mBaseOutputFormat.clear();
+    mCodec->mGraphicBufferSource.clear();
 
     if (mCodec->mShutdownInProgress) {
         bool keepComponentAllocated = mCodec->mKeepComponentAllocated;
@@ -6731,15 +6479,17 @@
 
 void ACodec::LoadedState::onShutdown(bool keepComponentAllocated) {
     if (!keepComponentAllocated) {
-        (void)mCodec->mOMX->freeNode(mCodec->mNode);
+        (void)mCodec->mOMXNode->freeNode();
 
         mCodec->changeState(mCodec->mUninitializedState);
     }
 
     if (mCodec->mExplicitShutdown) {
-        sp<AMessage> notify = mCodec->mNotify->dup();
-        notify->setInt32("what", CodecBase::kWhatShutdownCompleted);
-        notify->post();
+        if (keepComponentAllocated) {
+            mCodec->mCallback->onStopCompleted();
+        } else {
+            mCodec->mCallback->onReleaseCompleted();
+        }
         mCodec->mExplicitShutdown = false;
     }
 }
@@ -6791,10 +6541,7 @@
 
         case ACodec::kWhatFlush:
         {
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-            notify->post();
-
+            mCodec->mCallback->onFlushCompleted();
             handled = true;
             break;
         }
@@ -6810,7 +6557,7 @@
         const sp<AMessage> &msg) {
     ALOGV("onConfigureComponent");
 
-    CHECK(mCodec->mNode != 0);
+    CHECK(mCodec->mOMXNode != NULL);
 
     status_t err = OK;
     AString mime;
@@ -6827,109 +6574,99 @@
         return false;
     }
 
-    {
-        sp<AMessage> notify = mCodec->mNotify->dup();
-        notify->setInt32("what", CodecBase::kWhatComponentConfigured);
-        notify->setMessage("input-format", mCodec->mInputFormat);
-        notify->setMessage("output-format", mCodec->mOutputFormat);
-        notify->post();
-    }
+    mCodec->mCallback->onComponentConfigured(mCodec->mInputFormat, mCodec->mOutputFormat);
 
     return true;
 }
 
 status_t ACodec::LoadedState::setupInputSurface() {
-    status_t err = OK;
+    if (mCodec->mGraphicBufferSource == NULL) {
+        return BAD_VALUE;
+    }
+
+    android_dataspace dataSpace;
+    status_t err =
+        mCodec->setInitialColorAspectsForVideoEncoderSurfaceAndGetDataSpace(&dataSpace);
+    if (err != OK) {
+        ALOGE("Failed to get default data space");
+        return err;
+    }
+
+    err = statusFromBinderStatus(
+            mCodec->mGraphicBufferSource->configure(mCodec->mOMXNode, dataSpace));
+    if (err != OK) {
+        ALOGE("[%s] Unable to configure for node (err %d)",
+              mCodec->mComponentName.c_str(), err);
+        return err;
+    }
 
     if (mCodec->mRepeatFrameDelayUs > 0ll) {
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode,
-                kPortIndexInput,
-                IOMX::INTERNAL_OPTION_REPEAT_PREVIOUS_FRAME_DELAY,
-                &mCodec->mRepeatFrameDelayUs,
-                sizeof(mCodec->mRepeatFrameDelayUs));
+        err = statusFromBinderStatus(
+                mCodec->mGraphicBufferSource->setRepeatPreviousFrameDelayUs(
+                        mCodec->mRepeatFrameDelayUs));
 
         if (err != OK) {
             ALOGE("[%s] Unable to configure option to repeat previous "
                   "frames (err %d)",
-                  mCodec->mComponentName.c_str(),
-                  err);
+                  mCodec->mComponentName.c_str(), err);
             return err;
         }
     }
 
     if (mCodec->mMaxPtsGapUs > 0ll) {
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode,
-                kPortIndexInput,
-                IOMX::INTERNAL_OPTION_MAX_TIMESTAMP_GAP,
-                &mCodec->mMaxPtsGapUs,
-                sizeof(mCodec->mMaxPtsGapUs));
+        OMX_PARAM_U32TYPE maxPtsGapParams;
+        InitOMXParams(&maxPtsGapParams);
+        maxPtsGapParams.nPortIndex = kPortIndexInput;
+        maxPtsGapParams.nU32 = (uint32_t) mCodec->mMaxPtsGapUs;
+
+        err = mCodec->mOMXNode->setParameter(
+                (OMX_INDEXTYPE)OMX_IndexParamMaxFrameDurationForBitrateControl,
+                &maxPtsGapParams, sizeof(maxPtsGapParams));
 
         if (err != OK) {
             ALOGE("[%s] Unable to configure max timestamp gap (err %d)",
-                    mCodec->mComponentName.c_str(),
-                    err);
+                    mCodec->mComponentName.c_str(), err);
             return err;
         }
     }
 
     if (mCodec->mMaxFps > 0) {
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode,
-                kPortIndexInput,
-                IOMX::INTERNAL_OPTION_MAX_FPS,
-                &mCodec->mMaxFps,
-                sizeof(mCodec->mMaxFps));
+        err = statusFromBinderStatus(
+                mCodec->mGraphicBufferSource->setMaxFps(mCodec->mMaxFps));
 
         if (err != OK) {
             ALOGE("[%s] Unable to configure max fps (err %d)",
-                    mCodec->mComponentName.c_str(),
-                    err);
+                    mCodec->mComponentName.c_str(), err);
             return err;
         }
     }
 
-    if (mCodec->mTimePerCaptureUs > 0ll
-            && mCodec->mTimePerFrameUs > 0ll) {
-        int64_t timeLapse[2];
-        timeLapse[0] = mCodec->mTimePerFrameUs;
-        timeLapse[1] = mCodec->mTimePerCaptureUs;
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode,
-                kPortIndexInput,
-                IOMX::INTERNAL_OPTION_TIME_LAPSE,
-                &timeLapse[0],
-                sizeof(timeLapse));
+    if (mCodec->mCaptureFps > 0. && mCodec->mFps > 0.) {
+        err = statusFromBinderStatus(
+                mCodec->mGraphicBufferSource->setTimeLapseConfig(
+                        mCodec->mFps, mCodec->mCaptureFps));
 
         if (err != OK) {
             ALOGE("[%s] Unable to configure time lapse (err %d)",
-                    mCodec->mComponentName.c_str(),
-                    err);
+                    mCodec->mComponentName.c_str(), err);
             return err;
         }
     }
 
     if (mCodec->mCreateInputBuffersSuspended) {
-        bool suspend = true;
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode,
-                kPortIndexInput,
-                IOMX::INTERNAL_OPTION_SUSPEND,
-                &suspend,
-                sizeof(suspend));
+        err = statusFromBinderStatus(
+                mCodec->mGraphicBufferSource->setSuspend(true, -1));
 
         if (err != OK) {
             ALOGE("[%s] Unable to configure option to suspend (err %d)",
-                  mCodec->mComponentName.c_str(),
-                  err);
+                  mCodec->mComponentName.c_str(), err);
             return err;
         }
     }
 
     uint32_t usageBits;
-    if (mCodec->mOMX->getParameter(
-            mCodec->mNode, (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits,
+    if (mCodec->mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits,
             &usageBits, sizeof(usageBits)) == OK) {
         mCodec->mInputFormat->setInt32(
                 "using-sw-read-often", !!(usageBits & GRALLOC_USAGE_SW_READ_OFTEN));
@@ -6937,9 +6674,14 @@
 
     sp<ABuffer> colorAspectsBuffer;
     if (mCodec->mInputFormat->findBuffer("android._color-aspects", &colorAspectsBuffer)) {
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode, kPortIndexInput, IOMX::INTERNAL_OPTION_COLOR_ASPECTS,
-                colorAspectsBuffer->base(), colorAspectsBuffer->capacity());
+        if (colorAspectsBuffer->size() != sizeof(ColorAspects)) {
+            return INVALID_OPERATION;
+        }
+
+        err = statusFromBinderStatus(
+                mCodec->mGraphicBufferSource->setColorAspects(ColorUtils::packToU32(
+                        *(ColorAspects *)colorAspectsBuffer->base())));
+
         if (err != OK) {
             ALOGE("[%s] Unable to configure color aspects (err %d)",
                   mCodec->mComponentName.c_str(), err);
@@ -6953,33 +6695,18 @@
         const sp<AMessage> & /* msg */) {
     ALOGV("onCreateInputSurface");
 
-    sp<AMessage> notify = mCodec->mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatInputSurfaceCreated);
-
-    android_dataspace dataSpace;
-    status_t err =
-        mCodec->setInitialColorAspectsForVideoEncoderSurfaceAndGetDataSpace(&dataSpace);
-    notify->setMessage("input-format", mCodec->mInputFormat);
-    notify->setMessage("output-format", mCodec->mOutputFormat);
-
     sp<IGraphicBufferProducer> bufferProducer;
-    if (err == OK) {
-        mCodec->mInputMetadataType = kMetadataBufferTypeANWBuffer;
-        err = mCodec->mOMX->createInputSurface(
-                mCodec->mNode, kPortIndexInput, dataSpace, &bufferProducer,
-                &mCodec->mInputMetadataType);
-        // framework uses ANW buffers internally instead of gralloc handles
-        if (mCodec->mInputMetadataType == kMetadataBufferTypeGrallocSource) {
-            mCodec->mInputMetadataType = kMetadataBufferTypeANWBuffer;
-        }
-    }
+    status_t err = mCodec->mOMX->createInputSurface(
+            &bufferProducer, &mCodec->mGraphicBufferSource);
 
     if (err == OK) {
         err = setupInputSurface();
     }
 
     if (err == OK) {
-        notify->setObject("input-surface",
+        mCodec->mCallback->onInputSurfaceCreated(
+                mCodec->mInputFormat,
+                mCodec->mOutputFormat,
                 new BufferProducerWrapper(bufferProducer));
     } else {
         // Can't use mCodec->signalError() here -- MediaCodec won't forward
@@ -6987,59 +6714,37 @@
         // send a kWhatInputSurfaceCreated with an error value instead.
         ALOGE("[%s] onCreateInputSurface returning error %d",
                 mCodec->mComponentName.c_str(), err);
-        notify->setInt32("err", err);
+        mCodec->mCallback->onInputSurfaceCreationFailed(err);
     }
-    notify->post();
 }
 
-void ACodec::LoadedState::onSetInputSurface(
-        const sp<AMessage> &msg) {
+void ACodec::LoadedState::onSetInputSurface(const sp<AMessage> &msg) {
     ALOGV("onSetInputSurface");
 
-    sp<AMessage> notify = mCodec->mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatInputSurfaceAccepted);
-
     sp<RefBase> obj;
     CHECK(msg->findObject("input-surface", &obj));
     sp<PersistentSurface> surface = static_cast<PersistentSurface *>(obj.get());
+    mCodec->mGraphicBufferSource = surface->getBufferSource();
 
-    android_dataspace dataSpace;
-    status_t err =
-        mCodec->setInitialColorAspectsForVideoEncoderSurfaceAndGetDataSpace(&dataSpace);
-    notify->setMessage("input-format", mCodec->mInputFormat);
-    notify->setMessage("output-format", mCodec->mOutputFormat);
+    status_t err = setupInputSurface();
 
     if (err == OK) {
-        mCodec->mInputMetadataType = kMetadataBufferTypeANWBuffer;
-        err = mCodec->mOMX->setInputSurface(
-                mCodec->mNode, kPortIndexInput, surface->getBufferConsumer(),
-                &mCodec->mInputMetadataType);
-        // framework uses ANW buffers internally instead of gralloc handles
-        if (mCodec->mInputMetadataType == kMetadataBufferTypeGrallocSource) {
-            mCodec->mInputMetadataType = kMetadataBufferTypeANWBuffer;
-        }
-    }
-
-    if (err == OK) {
-        surface->getBufferConsumer()->setDefaultBufferDataSpace(dataSpace);
-        err = setupInputSurface();
-    }
-
-    if (err != OK) {
+        mCodec->mCallback->onInputSurfaceAccepted(
+                mCodec->mInputFormat, mCodec->mOutputFormat);
+    } else {
         // Can't use mCodec->signalError() here -- MediaCodec won't forward
         // the error through because it's in the "configured" state.  We
         // send a kWhatInputSurfaceAccepted with an error value instead.
         ALOGE("[%s] onSetInputSurface returning error %d",
                 mCodec->mComponentName.c_str(), err);
-        notify->setInt32("err", err);
+        mCodec->mCallback->onInputSurfaceDeclined(err);
     }
-    notify->post();
 }
 
 void ACodec::LoadedState::onStart() {
     ALOGV("onStart");
 
-    status_t err = mCodec->mOMX->sendCommand(mCodec->mNode, OMX_CommandStateSet, OMX_StateIdle);
+    status_t err = mCodec->mOMXNode->sendCommand(OMX_CommandStateSet, OMX_StateIdle);
     if (err != OK) {
         mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err));
     } else {
@@ -7064,8 +6769,8 @@
 
         mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err));
 
-        mCodec->mOMX->sendCommand(
-                mCodec->mNode, OMX_CommandStateSet, OMX_StateLoaded);
+        mCodec->mOMXNode->sendCommand(
+                OMX_CommandStateSet, OMX_StateLoaded);
         if (mCodec->allYourBuffersAreBelongToUs(kPortIndexInput)) {
             mCodec->freeBuffersOnPort(kPortIndexInput);
         }
@@ -7079,12 +6784,18 @@
 
 status_t ACodec::LoadedToIdleState::allocateBuffers() {
     status_t err = mCodec->allocateBuffersOnPort(kPortIndexInput);
-
     if (err != OK) {
         return err;
     }
 
-    return mCodec->allocateBuffersOnPort(kPortIndexOutput);
+    err = mCodec->allocateBuffersOnPort(kPortIndexOutput);
+    if (err != OK) {
+        return err;
+    }
+
+    mCodec->mCallback->onStartCompleted();
+
+    return OK;
 }
 
 bool ACodec::LoadedToIdleState::onMessageReceived(const sp<AMessage> &msg) {
@@ -7111,9 +6822,7 @@
         case kWhatFlush:
         {
             // We haven't even started yet, so we're flushed alright...
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-            notify->post();
+            mCodec->mCallback->onFlushCompleted();
             return true;
         }
 
@@ -7137,8 +6846,8 @@
             }
 
             if (err == OK) {
-                err = mCodec->mOMX->sendCommand(
-                    mCodec->mNode, OMX_CommandStateSet, OMX_StateExecuting);
+                err = mCodec->mOMXNode->sendCommand(
+                    OMX_CommandStateSet, OMX_StateExecuting);
             }
 
             if (err != OK) {
@@ -7183,10 +6892,7 @@
         case kWhatFlush:
         {
             // We haven't even started yet, so we're flushed alright...
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-            notify->post();
-
+            mCodec->mCallback->onFlushCompleted();
             return true;
         }
 
@@ -7281,14 +6987,11 @@
         ALOGV("[%s] calling fillBuffer %u", mCodec->mComponentName.c_str(), info->mBufferID);
 
         info->checkWriteFence("submitRegularOutputBuffers");
-        status_t err = mCodec->mOMX->fillBuffer(mCodec->mNode, info->mBufferID, info->mFenceFd);
-        info->mFenceFd = -1;
+        status_t err = mCodec->fillBuffer(info);
         if (err != OK) {
             failed = true;
             break;
         }
-
-        info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
     }
 
     if (failed) {
@@ -7328,7 +7031,6 @@
 
 void ACodec::ExecutingState::stateEntered() {
     ALOGV("[%s] Now Executing", mCodec->mComponentName.c_str());
-
     mCodec->mRenderTracker.clear(systemTime(CLOCK_MONOTONIC));
     mCodec->processDeferredMessages();
 }
@@ -7349,8 +7051,8 @@
 
             mActive = false;
 
-            status_t err = mCodec->mOMX->sendCommand(
-                    mCodec->mNode, OMX_CommandStateSet, OMX_StateIdle);
+            status_t err = mCodec->mOMXNode->sendCommand(
+                    OMX_CommandStateSet, OMX_StateIdle);
             if (err != OK) {
                 if (keepComponentAllocated) {
                     mCodec->signalError(OMX_ErrorUndefined, FAILED_TRANSACTION);
@@ -7376,7 +7078,7 @@
 
             mActive = false;
 
-            status_t err = mCodec->mOMX->sendCommand(mCodec->mNode, OMX_CommandFlush, OMX_ALL);
+            status_t err = mCodec->mOMXNode->sendCommand(OMX_CommandFlush, OMX_ALL);
             if (err != OK) {
                 mCodec->signalError(OMX_ErrorUndefined, FAILED_TRANSACTION);
             } else {
@@ -7459,8 +7161,7 @@
         configParams.nPortIndex = kPortIndexOutput;
         configParams.nEncodeBitrate = videoBitrate;
 
-        status_t err = mOMX->setConfig(
-                mNode,
+        status_t err = mOMXNode->setConfig(
                 OMX_IndexConfigVideoBitrate,
                 &configParams,
                 sizeof(configParams));
@@ -7475,12 +7176,14 @@
 
     int64_t timeOffsetUs;
     if (params->findInt64("time-offset-us", &timeOffsetUs)) {
-        status_t err = mOMX->setInternalOption(
-            mNode,
-            kPortIndexInput,
-            IOMX::INTERNAL_OPTION_TIME_OFFSET,
-            &timeOffsetUs,
-            sizeof(timeOffsetUs));
+        if (mGraphicBufferSource == NULL) {
+            ALOGE("[%s] Invalid to set input buffer time offset without surface",
+                    mComponentName.c_str());
+            return INVALID_OPERATION;
+        }
+
+        status_t err = statusFromBinderStatus(
+                mGraphicBufferSource->setTimeOffsetUs(timeOffsetUs));
 
         if (err != OK) {
             ALOGE("[%s] Unable to set input buffer time offset (err %d)",
@@ -7492,13 +7195,14 @@
 
     int64_t skipFramesBeforeUs;
     if (params->findInt64("skip-frames-before", &skipFramesBeforeUs)) {
-        status_t err =
-            mOMX->setInternalOption(
-                     mNode,
-                     kPortIndexInput,
-                     IOMX::INTERNAL_OPTION_START_TIME,
-                     &skipFramesBeforeUs,
-                     sizeof(skipFramesBeforeUs));
+        if (mGraphicBufferSource == NULL) {
+            ALOGE("[%s] Invalid to set start time without surface",
+                    mComponentName.c_str());
+            return INVALID_OPERATION;
+        }
+
+        status_t err = statusFromBinderStatus(
+                mGraphicBufferSource->setStartTimeUs(skipFramesBeforeUs));
 
         if (err != OK) {
             ALOGE("Failed to set parameter 'skip-frames-before' (err %d)", err);
@@ -7508,15 +7212,16 @@
 
     int32_t dropInputFrames;
     if (params->findInt32("drop-input-frames", &dropInputFrames)) {
-        bool suspend = dropInputFrames != 0;
+        if (mGraphicBufferSource == NULL) {
+            ALOGE("[%s] Invalid to set suspend without surface",
+                    mComponentName.c_str());
+            return INVALID_OPERATION;
+        }
 
-        status_t err =
-            mOMX->setInternalOption(
-                     mNode,
-                     kPortIndexInput,
-                     IOMX::INTERNAL_OPTION_SUSPEND,
-                     &suspend,
-                     sizeof(suspend));
+        int64_t suspendStartTimeUs = -1;
+        (void) params->findInt64("drop-start-time-us", &suspendStartTimeUs);
+        status_t err = statusFromBinderStatus(
+                mGraphicBufferSource->setSuspend(dropInputFrames != 0, suspendStartTimeUs));
 
         if (err != OK) {
             ALOGE("Failed to set parameter 'drop-input-frames' (err %d)", err);
@@ -7524,6 +7229,22 @@
         }
     }
 
+    int64_t stopTimeUs;
+    if (params->findInt64("stop-time-us", &stopTimeUs)) {
+        if (mGraphicBufferSource == NULL) {
+            ALOGE("[%s] Invalid to set stop time without surface",
+                    mComponentName.c_str());
+            return INVALID_OPERATION;
+        }
+        status_t err = statusFromBinderStatus(
+                mGraphicBufferSource->setStopTimeUs(stopTimeUs));
+
+        if (err != OK) {
+            ALOGE("Failed to set parameter 'stop-time-us' (err %d)", err);
+            return err;
+        }
+    }
+
     int32_t dummy;
     if (params->findInt32("request-sync", &dummy)) {
         status_t err = requestIDRFrame();
@@ -7554,23 +7275,409 @@
         }
     }
 
+    int32_t latency = 0;
+    if (params->findInt32("latency", &latency) && latency > 0) {
+        status_t err = setLatency(latency);
+        if (err != OK) {
+            ALOGI("[%s] failed setLatency. Failure is fine since this key is optional",
+                    mComponentName.c_str());
+            err = OK;
+        }
+    }
+
     status_t err = configureTemporalLayers(params, false /* inConfigure */, mOutputFormat);
     if (err != OK) {
         err = OK; // ignore failure
     }
 
-    return err;
+    return setVendorParameters(params);
+}
+
+// Removes trailing tags matching |tag| from |key| (e.g. a settings name). |minLength| specifies
+// the minimum number of characters to keep in |key| (even if it has trailing tags).
+// (Used to remove trailing 'value' tags in settings names, e.g. to normalize
+// 'vendor.settingsX.value' to 'vendor.settingsX')
+static void removeTrailingTags(char *key, size_t minLength, const char *tag) {
+    size_t length = strlen(key);
+    size_t tagLength = strlen(tag);
+    while (length > minLength + tagLength
+            && !strcmp(key + length - tagLength, tag)
+            && key[length - tagLength - 1] == '.') {
+        length -= tagLength + 1;
+        key[length] = '\0';
+    }
+}
+
+/**
+ * Struct encompassing a vendor extension config structure and a potential error status (in case
+ * the structure is null). Used to iterate through vendor extensions.
+ */
+struct VendorExtension {
+    OMX_CONFIG_ANDROID_VENDOR_EXTENSIONTYPE *config;  // structure does not own config
+    status_t status;
+
+    // create based on an error status
+    VendorExtension(status_t s_ = NO_INIT) : config(nullptr), status(s_) { }
+
+    // create based on a successfully retrieved config structure
+    VendorExtension(OMX_CONFIG_ANDROID_VENDOR_EXTENSIONTYPE *c_) : config(c_), status(OK) { }
+};
+
+// class VendorExtensions;
+/**
+ * Forward iterator to enumerate vendor extensions supported by an OMX component.
+ */
+class VendorExtensionIterator {
+//private:
+    static constexpr size_t kLastIndex = ~(size_t)0; // last index marker
+
+    sp<IOMXNode> mNode;                   // component
+    size_t mIndex;                        // current android extension index
+    std::unique_ptr<uint8_t[]> mBacking;  // current extension's backing
+    VendorExtension mCurrent;             // current extension
+
+    VendorExtensionIterator(const sp<IOMXNode> &node, size_t index)
+        : mNode(node),
+          mIndex(index) {
+        mCurrent = retrieve();
+    }
+
+    friend class VendorExtensions;
+
+public:
+    // copy constructor
+    VendorExtensionIterator(const VendorExtensionIterator &it)
+        : VendorExtensionIterator(it.mNode, it.mIndex) { }
+
+    // retrieves the current extension pointed to by this iterator
+    VendorExtension retrieve() {
+        if (mIndex == kLastIndex) {
+            return NO_INIT;
+        }
+
+        // try with one param first, then retry if extension needs more than 1 param
+        for (size_t paramSizeUsed = 1;; ) {
+            if (paramSizeUsed > OMX_MAX_ANDROID_VENDOR_PARAMCOUNT) {
+                return BAD_VALUE; // this prevents overflow in the following formula
+            }
+
+            size_t size = sizeof(OMX_CONFIG_ANDROID_VENDOR_EXTENSIONTYPE) +
+                (paramSizeUsed - 1) * sizeof(OMX_CONFIG_ANDROID_VENDOR_EXTENSIONTYPE::param);
+            mBacking.reset(new uint8_t[size]);
+            if (!mBacking) {
+                return NO_MEMORY;
+            }
+
+            OMX_CONFIG_ANDROID_VENDOR_EXTENSIONTYPE *config =
+                reinterpret_cast<OMX_CONFIG_ANDROID_VENDOR_EXTENSIONTYPE *>(mBacking.get());
+
+            InitOMXParams(config);
+            config->nSize = size;
+            config->nIndex = mIndex;
+            config->nParamSizeUsed = paramSizeUsed;
+            status_t err = mNode->getConfig(
+                    (OMX_INDEXTYPE)OMX_IndexConfigAndroidVendorExtension, config, size);
+            if (err == OK && config->nParamCount > paramSizeUsed && paramSizeUsed == 1) {
+                // reallocate if we need a bigger config
+                paramSizeUsed = config->nParamCount;
+                continue;
+            } else if (err == NOT_ENOUGH_DATA
+                   || (err != OK && mIndex == 0)) {
+                // stop iterator on no-more signal, or if index is not at all supported
+                mIndex = kLastIndex;
+                return NO_INIT;
+            } else if (err != OK) {
+                return err;
+            } else if (paramSizeUsed != config->nParamSizeUsed) {
+                return BAD_VALUE; // component shall not modify size of nParam
+            }
+
+            return config;
+        }
+    }
+
+    // returns extension pointed to by this iterator
+    VendorExtension operator*() {
+        return mCurrent;
+    }
+
+    // prefix increment: move to next extension
+    VendorExtensionIterator &operator++() { // prefix
+        if (mIndex != kLastIndex) {
+            ++mIndex;
+            mCurrent = retrieve();
+        }
+        return *this;
+    }
+
+    // iterator equality operators
+    bool operator==(const VendorExtensionIterator &o) {
+        return mNode == o.mNode && mIndex == o.mIndex;
+    }
+
+    bool operator!=(const VendorExtensionIterator &o) {
+        return !(*this == o);
+    }
+};
+
+/**
+ * Iterable container for vendor extensions provided by a component
+ */
+class VendorExtensions {
+//private:
+    sp<IOMXNode> mNode;
+
+public:
+    VendorExtensions(const sp<IOMXNode> &node)
+        : mNode(node) {
+    }
+
+    VendorExtensionIterator begin() {
+        return VendorExtensionIterator(mNode, 0);
+    }
+
+    VendorExtensionIterator end() {
+        return VendorExtensionIterator(mNode, VendorExtensionIterator::kLastIndex);
+    }
+};
+
+status_t ACodec::setVendorParameters(const sp<AMessage> &params) {
+    std::map<std::string, std::string> vendorKeys; // maps reduced name to actual name
+    constexpr char prefix[] = "vendor.";
+    constexpr size_t prefixLength = sizeof(prefix) - 1;
+    // longest possible vendor param name
+    char reducedKey[OMX_MAX_STRINGNAME_SIZE + OMX_MAX_STRINGVALUE_SIZE];
+
+    // identify all vendor keys to speed up search later and to detect vendor keys
+    for (size_t i = params->countEntries(); i; --i) {
+        AMessage::Type keyType;
+        const char* key = params->getEntryNameAt(i - 1, &keyType);
+        if (key != nullptr && !strncmp(key, prefix, prefixLength)
+                // it is safe to limit format keys to the max vendor param size as we only
+                // shorten parameter names by removing any trailing 'value' tags, and we
+                // already remove the vendor prefix.
+                && strlen(key + prefixLength) < sizeof(reducedKey)
+                && (keyType == AMessage::kTypeInt32
+                        || keyType == AMessage::kTypeInt64
+                        || keyType == AMessage::kTypeString)) {
+            strcpy(reducedKey, key + prefixLength);
+            removeTrailingTags(reducedKey, 0, "value");
+            auto existingKey = vendorKeys.find(reducedKey);
+            if (existingKey != vendorKeys.end()) {
+                ALOGW("[%s] vendor parameter '%s' aliases parameter '%s'",
+                        mComponentName.c_str(), key, existingKey->second.c_str());
+                // ignore for now
+            }
+            vendorKeys.emplace(reducedKey, key);
+        }
+    }
+
+    // don't bother component if we don't have vendor extensions as they may not have implemented
+    // the android vendor extension support, which will lead to unnecessary OMX failure logs.
+    if (vendorKeys.empty()) {
+        return OK;
+    }
+
+    char key[sizeof(OMX_CONFIG_ANDROID_VENDOR_EXTENSIONTYPE::cName) +
+            sizeof(OMX_CONFIG_ANDROID_VENDOR_PARAMTYPE::cKey)];
+
+    status_t finalError = OK;
+
+    // don't try again if component does not have vendor extensions
+    if (mVendorExtensionsStatus == kExtensionsNone) {
+        return OK;
+    }
+
+    for (VendorExtension ext : VendorExtensions(mOMXNode)) {
+        OMX_CONFIG_ANDROID_VENDOR_EXTENSIONTYPE *config = ext.config;
+        if (config == nullptr) {
+            return ext.status;
+        }
+
+        mVendorExtensionsStatus = kExtensionsExist;
+
+        config->cName[sizeof(config->cName) - 1] = '\0'; // null-terminate name
+        strcpy(key, (const char *)config->cName);
+        size_t nameLength = strlen(key);
+        key[nameLength] = '.';
+
+        // don't set vendor extension if client has not provided any of its parameters
+        // or if client simply unsets parameters that are already unset
+        bool needToSet = false;
+        for (size_t paramIndex = 0; paramIndex < config->nParamCount; ++paramIndex) {
+            // null-terminate param key
+            config->param[paramIndex].cKey[sizeof(config->param[0].cKey) - 1] = '\0';
+            strcpy(key + nameLength + 1, (const char *)config->param[paramIndex].cKey);
+            removeTrailingTags(key, nameLength, "value");
+            auto existingKey = vendorKeys.find(key);
+
+            // don't touch (e.g. change) parameters that are not specified by client
+            if (existingKey == vendorKeys.end()) {
+                continue;
+            }
+
+            bool wasSet = config->param[paramIndex].bSet;
+            switch (config->param[paramIndex].eValueType) {
+            case OMX_AndroidVendorValueInt32:
+            {
+                int32_t value;
+                config->param[paramIndex].bSet =
+                    (OMX_BOOL)params->findInt32(existingKey->second.c_str(), &value);
+                if (config->param[paramIndex].bSet) {
+                    config->param[paramIndex].nInt32 = value;
+                }
+                break;
+            }
+            case OMX_AndroidVendorValueInt64:
+            {
+                int64_t value;
+                config->param[paramIndex].bSet =
+                    (OMX_BOOL)params->findAsInt64(existingKey->second.c_str(), &value);
+                if (config->param[paramIndex].bSet) {
+                    config->param[paramIndex].nInt64 = value;
+                }
+                break;
+            }
+            case OMX_AndroidVendorValueString:
+            {
+                AString value;
+                config->param[paramIndex].bSet =
+                    (OMX_BOOL)params->findString(existingKey->second.c_str(), &value);
+                if (config->param[paramIndex].bSet) {
+                    strncpy((char *)config->param[paramIndex].cString, value.c_str(),
+                            sizeof(OMX_CONFIG_ANDROID_VENDOR_PARAMTYPE::cString));
+                }
+                break;
+            }
+            default:
+                ALOGW("[%s] vendor parameter '%s' is not a supported value",
+                        mComponentName.c_str(), key);
+                continue;
+            }
+            if (config->param[paramIndex].bSet || wasSet) {
+                needToSet = true;
+            }
+        }
+
+        if (needToSet) {
+            status_t err = mOMXNode->setConfig(
+                    (OMX_INDEXTYPE)OMX_IndexConfigAndroidVendorExtension,
+                    config, config->nSize);
+            if (err != OK) {
+                key[nameLength] = '\0';
+                ALOGW("[%s] failed to set vendor extension '%s'", mComponentName.c_str(), key);
+                // try to set each extension, and return first failure
+                if (finalError == OK) {
+                    finalError = err;
+                }
+            }
+        }
+    }
+
+    if (mVendorExtensionsStatus == kExtensionsUnchecked) {
+        mVendorExtensionsStatus = kExtensionsNone;
+    }
+
+    return finalError;
+}
+
+status_t ACodec::getVendorParameters(OMX_U32 portIndex, sp<AMessage> &format) {
+    constexpr char prefix[] = "vendor.";
+    constexpr size_t prefixLength = sizeof(prefix) - 1;
+    char key[sizeof(OMX_CONFIG_ANDROID_VENDOR_EXTENSIONTYPE::cName) +
+            sizeof(OMX_CONFIG_ANDROID_VENDOR_PARAMTYPE::cKey) + prefixLength];
+    strcpy(key, prefix);
+
+    // don't try again if component does not have vendor extensions
+    if (mVendorExtensionsStatus == kExtensionsNone) {
+        return OK;
+    }
+
+    for (VendorExtension ext : VendorExtensions(mOMXNode)) {
+        OMX_CONFIG_ANDROID_VENDOR_EXTENSIONTYPE *config = ext.config;
+        if (config == nullptr) {
+            return ext.status;
+        }
+
+        mVendorExtensionsStatus = kExtensionsExist;
+
+        if (config->eDir != (portIndex == kPortIndexInput ? OMX_DirInput : OMX_DirOutput)) {
+            continue;
+        }
+
+        config->cName[sizeof(config->cName) - 1] = '\0'; // null-terminate name
+        strcpy(key + prefixLength, (const char *)config->cName);
+        size_t nameLength = strlen(key);
+        key[nameLength] = '.';
+
+        for (size_t paramIndex = 0; paramIndex < config->nParamCount; ++paramIndex) {
+            // null-terminate param key
+            config->param[paramIndex].cKey[sizeof(config->param[0].cKey) - 1] = '\0';
+            strcpy(key + nameLength + 1, (const char *)config->param[paramIndex].cKey);
+            removeTrailingTags(key, nameLength, "value");
+            if (config->param[paramIndex].bSet) {
+                switch (config->param[paramIndex].eValueType) {
+                case OMX_AndroidVendorValueInt32:
+                {
+                    format->setInt32(key, config->param[paramIndex].nInt32);
+                    break;
+                }
+                case OMX_AndroidVendorValueInt64:
+                {
+                    format->setInt64(key, config->param[paramIndex].nInt64);
+                    break;
+                }
+                case OMX_AndroidVendorValueString:
+                {
+                    config->param[paramIndex].cString[OMX_MAX_STRINGVALUE_SIZE - 1] = '\0';
+                    format->setString(key, (const char *)config->param[paramIndex].cString);
+                    break;
+                }
+                default:
+                    ALOGW("vendor parameter %s is not a supported value", key);
+                    continue;
+                }
+            }
+        }
+    }
+
+    if (mVendorExtensionsStatus == kExtensionsUnchecked) {
+        mVendorExtensionsStatus = kExtensionsNone;
+    }
+
+    return OK;
 }
 
 void ACodec::onSignalEndOfInputStream() {
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatSignaledInputEOS);
-
-    status_t err = mOMX->signalEndOfInputStream(mNode);
-    if (err != OK) {
-        notify->setInt32("err", err);
+    status_t err = INVALID_OPERATION;
+    if (mGraphicBufferSource != NULL) {
+        err = statusFromBinderStatus(mGraphicBufferSource->signalEndOfInputStream());
     }
-    notify->post();
+    mCallback->onSignaledInputEOS(err);
+}
+
+void ACodec::forceStateTransition(int generation) {
+    if (generation != mStateGeneration) {
+        ALOGV("Ignoring stale force state transition message: #%d (now #%d)",
+                generation, mStateGeneration);
+        return;
+    }
+    ALOGE("State machine stuck");
+    // Error must have already been signalled to the client.
+
+    // Deferred messages will be handled at LoadedState at the end of the
+    // transition.
+    mShutdownInProgress = true;
+    // No shutdown complete callback at the end of the transition.
+    mExplicitShutdown = false;
+    mKeepComponentAllocated = true;
+
+    status_t err = mOMXNode->sendCommand(OMX_CommandStateSet, OMX_StateIdle);
+    if (err != OK) {
+        // TODO: do some recovery here.
+    } else {
+        changeState(mExecutingToIdleState);
+    }
 }
 
 bool ACodec::ExecutingState::onOMXFrameRendered(int64_t mediaTimeUs, nsecs_t systemNano) {
@@ -7589,8 +7696,7 @@
 
             if (data2 == 0 || data2 == OMX_IndexParamPortDefinition) {
                 mCodec->mMetadataBuffersToSubmit = 0;
-                CHECK_EQ(mCodec->mOMX->sendCommand(
-                            mCodec->mNode,
+                CHECK_EQ(mCodec->mOMXNode->sendCommand(
                             OMX_CommandPortDisable, kPortIndexOutput),
                          (status_t)OK);
 
@@ -7640,7 +7746,14 @@
 
     switch (msg->what()) {
         case kWhatFlush:
-        case kWhatShutdown:
+        case kWhatShutdown: {
+            if (mCodec->mFatalError) {
+                sp<AMessage> msg = new AMessage(ACodec::kWhatForceStateTransition, mCodec);
+                msg->setInt32("generation", mCodec->mStateGeneration);
+                msg->post(3000000);
+            }
+            // fall-through
+        }
         case kWhatResume:
         case kWhatSetParameters:
         {
@@ -7653,6 +7766,16 @@
             break;
         }
 
+        case kWhatForceStateTransition:
+        {
+            int32_t generation = 0;
+            CHECK(msg->findInt32("generation", &generation));
+            mCodec->forceStateTransition(generation);
+
+            handled = true;
+            break;
+        }
+
         default:
             handled = BaseState::onMessageReceived(msg);
             break;
@@ -7691,31 +7814,28 @@
                             mCodec->mBuffers[kPortIndexOutput].size());
                     err = FAILED_TRANSACTION;
                 } else {
-                    mCodec->mDealer[kPortIndexOutput].clear();
+                    if (mCodec->getTrebleFlag()) {
+                        mCodec->mAllocator[kPortIndexOutput].clear();
+                    } else {
+                        mCodec->mDealer[kPortIndexOutput].clear();
+                    }
                 }
 
                 if (err == OK) {
-                    err = mCodec->mOMX->sendCommand(
-                            mCodec->mNode, OMX_CommandPortEnable, kPortIndexOutput);
+                    err = mCodec->mOMXNode->sendCommand(
+                            OMX_CommandPortEnable, kPortIndexOutput);
                 }
 
                 if (err == OK) {
                     err = mCodec->allocateBuffersOnPort(kPortIndexOutput);
                     ALOGE_IF(err != OK, "Failed to allocate output port buffers after port "
                             "reconfiguration: (%d)", err);
+                    mCodec->mCallback->onOutputBuffersChanged();
                 }
 
                 if (err != OK) {
                     mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err));
-
-                    // This is technically not correct, but appears to be
-                    // the only way to free the component instance.
-                    // Controlled transitioning from excecuting->idle
-                    // and idle->loaded seem impossible probably because
-                    // the output port never finishes re-enabling.
-                    mCodec->mShutdownInProgress = true;
-                    mCodec->mKeepComponentAllocated = false;
-                    mCodec->changeState(mCodec->mLoadedState);
+                    ALOGE("Error occurred while disabling the output port");
                 }
 
                 return true;
@@ -7740,7 +7860,7 @@
         }
 
         default:
-            return false;
+            return BaseState::onOMXEvent(event, data1, data2);
     }
 }
 
@@ -7765,8 +7885,7 @@
 
         case kWhatShutdown:
         {
-            // We're already doing that...
-
+            mCodec->deferMessage(msg);
             handled = true;
             break;
         }
@@ -7821,8 +7940,8 @@
 
 void ACodec::ExecutingToIdleState::changeStateIfWeOwnAllBuffers() {
     if (mComponentNowIdle && mCodec->allYourBuffersAreBelongToUs()) {
-        status_t err = mCodec->mOMX->sendCommand(
-                mCodec->mNode, OMX_CommandStateSet, OMX_StateLoaded);
+        status_t err = mCodec->mOMXNode->sendCommand(
+                OMX_CommandStateSet, OMX_StateLoaded);
         if (err == OK) {
             err = mCodec->freeBuffersOnPort(kPortIndexInput);
             status_t err2 = mCodec->freeBuffersOnPort(kPortIndexOutput);
@@ -7875,8 +7994,7 @@
     switch (msg->what()) {
         case kWhatShutdown:
         {
-            // We're already doing that...
-
+            mCodec->deferMessage(msg);
             handled = true;
             break;
         }
@@ -7944,6 +8062,11 @@
         case kWhatShutdown:
         {
             mCodec->deferMessage(msg);
+            if (mCodec->mFatalError) {
+                sp<AMessage> msg = new AMessage(ACodec::kWhatForceStateTransition, mCodec);
+                msg->setInt32("generation", mCodec->mStateGeneration);
+                msg->post(3000000);
+            }
             break;
         }
 
@@ -7954,6 +8077,16 @@
             break;
         }
 
+        case kWhatForceStateTransition:
+        {
+            int32_t generation = 0;
+            CHECK(msg->findInt32("generation", &generation));
+            mCodec->forceStateTransition(generation);
+
+            handled = true;
+            break;
+        }
+
         default:
             handled = BaseState::onMessageReceived(msg);
             break;
@@ -8008,7 +8141,7 @@
         {
             sp<AMessage> msg = new AMessage(kWhatOMXMessage, mCodec);
             msg->setInt32("type", omx_message::EVENT);
-            msg->setInt32("node", mCodec->mNode);
+            msg->setInt32("generation", mCodec->mNodeGeneration);
             msg->setInt32("event", event);
             msg->setInt32("data1", data1);
             msg->setInt32("data2", data2);
@@ -8050,9 +8183,7 @@
 
         mCodec->mRenderTracker.clear(systemTime(CLOCK_MONOTONIC));
 
-        sp<AMessage> notify = mCodec->mNotify->dup();
-        notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-        notify->post();
+        mCodec->mCallback->onFlushCompleted();
 
         mCodec->mPortEOS[kPortIndexInput] =
             mCodec->mPortEOS[kPortIndexOutput] = false;
@@ -8071,7 +8202,7 @@
         const AString &name, const AString &mime, bool isEncoder,
         sp<MediaCodecInfo::Capabilities> *caps) {
     (*caps).clear();
-    const char *role = getComponentRole(isEncoder, mime.c_str());
+    const char *role = GetComponentRole(isEncoder, mime.c_str());
     if (role == NULL) {
         return BAD_VALUE;
     }
@@ -8084,17 +8215,17 @@
 
     sp<IOMX> omx = client.interface();
     sp<CodecObserver> observer = new CodecObserver;
-    IOMX::node_id node = 0;
+    sp<IOMXNode> omxNode;
 
-    err = omx->allocateNode(name.c_str(), observer, NULL, &node);
+    err = omx->allocateNode(name.c_str(), observer, &omxNode);
     if (err != OK) {
         client.disconnect();
         return err;
     }
 
-    err = setComponentRole(omx, node, role);
+    err = SetComponentRole(omxNode, role);
     if (err != OK) {
-        omx->freeNode(node);
+        omxNode->freeNode();
         client.disconnect();
         return err;
     }
@@ -8109,8 +8240,8 @@
 
         for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
             param.nProfileIndex = index;
-            status_t err = omx->getParameter(
-                    node, OMX_IndexParamVideoProfileLevelQuerySupported,
+            status_t err = omxNode->getParameter(
+                    OMX_IndexParamVideoProfileLevelQuerySupported,
                     &param, sizeof(param));
             if (err != OK) {
                 break;
@@ -8133,16 +8264,16 @@
         Vector<uint32_t> supportedColors; // shadow copy to check for duplicates
         for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
             portFormat.nIndex = index;
-            status_t err = omx->getParameter(
-                    node, OMX_IndexParamVideoPortFormat,
+            status_t err = omxNode->getParameter(
+                    OMX_IndexParamVideoPortFormat,
                     &portFormat, sizeof(portFormat));
             if (err != OK) {
                 break;
             }
 
             OMX_U32 flexibleEquivalent;
-            if (isFlexibleColorFormat(
-                    omx, node, portFormat.eColorFormat, false /* usingNativeWindow */,
+            if (IsFlexibleColorFormat(
+                    omxNode, portFormat.eColorFormat, false /* usingNativeWindow */,
                     &flexibleEquivalent)) {
                 bool marked = false;
                 for (size_t i = 0; i < supportedColors.size(); ++i) {
@@ -8172,8 +8303,8 @@
         param.nPortIndex = isEncoder ? kPortIndexOutput : kPortIndexInput;
         for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
             param.nProfileIndex = index;
-            status_t err = omx->getParameter(
-                    node, (OMX_INDEXTYPE)OMX_IndexParamAudioProfileQuerySupported,
+            status_t err = omxNode->getParameter(
+                    (OMX_INDEXTYPE)OMX_IndexParamAudioProfileQuerySupported,
                     &param, sizeof(param));
             if (err != OK) {
                 break;
@@ -8197,15 +8328,15 @@
 
     if (isVideo && !isEncoder) {
         native_handle_t *sidebandHandle = NULL;
-        if (omx->configureVideoTunnelMode(
-                node, kPortIndexOutput, OMX_TRUE, 0, &sidebandHandle) == OK) {
+        if (omxNode->configureVideoTunnelMode(
+                kPortIndexOutput, OMX_TRUE, 0, &sidebandHandle) == OK) {
             // tunneled playback includes adaptive playback
             builder->addFlags(MediaCodecInfo::Capabilities::kFlagSupportsAdaptivePlayback
                     | MediaCodecInfo::Capabilities::kFlagSupportsTunneledPlayback);
-        } else if (omx->storeMetaDataInBuffers(
-                node, kPortIndexOutput, OMX_TRUE) == OK ||
-            omx->prepareForAdaptivePlayback(
-                node, kPortIndexOutput, OMX_TRUE,
+        } else if (omxNode->setPortMode(
+                kPortIndexOutput, IOMX::kPortModeDynamicANWBuffer) == OK ||
+                omxNode->prepareForAdaptivePlayback(
+                kPortIndexOutput, OMX_TRUE,
                 1280 /* width */, 720 /* height */) == OK) {
             builder->addFlags(MediaCodecInfo::Capabilities::kFlagSupportsAdaptivePlayback);
         }
@@ -8216,15 +8347,15 @@
         InitOMXParams(&params);
         params.nPortIndex = kPortIndexOutput;
         // TODO: should we verify if fallback is supported?
-        if (omx->getConfig(
-                node, (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh,
+        if (omxNode->getConfig(
+                (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh,
                 &params, sizeof(params)) == OK) {
             builder->addFlags(MediaCodecInfo::Capabilities::kFlagSupportsIntraRefresh);
         }
     }
 
     *caps = builder;
-    omx->freeNode(node);
+    omxNode->freeNode();
     client.disconnect();
     return OK;
 }
@@ -8293,4 +8424,12 @@
     return OK;
 }
 
+void ACodec::setTrebleFlag(bool trebleFlag) {
+    mTrebleFlag = trebleFlag;
+}
+
+bool ACodec::getTrebleFlag() const {
+    return mTrebleFlag;
+}
+
 }  // namespace android
diff --git a/media/libstagefright/ACodecBufferChannel.cpp b/media/libstagefright/ACodecBufferChannel.cpp
new file mode 100644
index 0000000..0d9696f
--- /dev/null
+++ b/media/libstagefright/ACodecBufferChannel.cpp
@@ -0,0 +1,383 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ACodecBufferChannel"
+#include <utils/Log.h>
+
+#include <numeric>
+
+#include <android/media/IDescrambler.h>
+#include <binder/MemoryDealer.h>
+#include <media/openmax/OMX_Core.h>
+#include <media/stagefright/foundation/AMessage.h>
+#include <media/stagefright/foundation/AUtils.h>
+#include <media/stagefright/MediaCodec.h>
+#include <media/MediaCodecBuffer.h>
+#include <system/window.h>
+
+#include "include/ACodecBufferChannel.h"
+#include "include/SecureBuffer.h"
+#include "include/SharedMemoryBuffer.h"
+
+namespace android {
+using binder::Status;
+using MediaDescrambler::DescrambleInfo;
+using BufferInfo = ACodecBufferChannel::BufferInfo;
+using BufferInfoIterator = std::vector<const BufferInfo>::const_iterator;
+
+ACodecBufferChannel::~ACodecBufferChannel() {
+    if (mCrypto != nullptr && mDealer != nullptr && mHeapSeqNum >= 0) {
+        mCrypto->unsetHeap(mHeapSeqNum);
+    }
+}
+
+static BufferInfoIterator findClientBuffer(
+        const std::shared_ptr<const std::vector<const BufferInfo>> &array,
+        const sp<MediaCodecBuffer> &buffer) {
+    return std::find_if(
+            array->begin(), array->end(),
+            [buffer](const BufferInfo &info) { return info.mClientBuffer == buffer; });
+}
+
+static BufferInfoIterator findBufferId(
+        const std::shared_ptr<const std::vector<const BufferInfo>> &array,
+        IOMX::buffer_id bufferId) {
+    return std::find_if(
+            array->begin(), array->end(),
+            [bufferId](const BufferInfo &info) { return bufferId == info.mBufferId; });
+}
+
+ACodecBufferChannel::BufferInfo::BufferInfo(
+        const sp<MediaCodecBuffer> &buffer,
+        IOMX::buffer_id bufferId,
+        const sp<IMemory> &sharedEncryptedBuffer)
+    : mClientBuffer(
+          (sharedEncryptedBuffer == nullptr)
+          ? buffer
+          : new SharedMemoryBuffer(buffer->format(), sharedEncryptedBuffer)),
+      mCodecBuffer(buffer),
+      mBufferId(bufferId),
+      mSharedEncryptedBuffer(sharedEncryptedBuffer) {
+}
+
+ACodecBufferChannel::ACodecBufferChannel(
+        const sp<AMessage> &inputBufferFilled, const sp<AMessage> &outputBufferDrained)
+    : mInputBufferFilled(inputBufferFilled),
+      mOutputBufferDrained(outputBufferDrained),
+      mHeapSeqNum(-1) {
+}
+
+status_t ACodecBufferChannel::queueInputBuffer(const sp<MediaCodecBuffer> &buffer) {
+    if (mDealer != nullptr) {
+        return -ENOSYS;
+    }
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mInputBuffers));
+    BufferInfoIterator it = findClientBuffer(array, buffer);
+    if (it == array->end()) {
+        return -ENOENT;
+    }
+    ALOGV("queueInputBuffer #%d", it->mBufferId);
+    sp<AMessage> msg = mInputBufferFilled->dup();
+    msg->setObject("buffer", it->mCodecBuffer);
+    msg->setInt32("buffer-id", it->mBufferId);
+    msg->post();
+    return OK;
+}
+
+status_t ACodecBufferChannel::queueSecureInputBuffer(
+        const sp<MediaCodecBuffer> &buffer, bool secure, const uint8_t *key,
+        const uint8_t *iv, CryptoPlugin::Mode mode, CryptoPlugin::Pattern pattern,
+        const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+        AString *errorDetailMsg) {
+    if (!hasCryptoOrDescrambler() || mDealer == nullptr) {
+        return -ENOSYS;
+    }
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mInputBuffers));
+    BufferInfoIterator it = findClientBuffer(array, buffer);
+    if (it == array->end()) {
+        return -ENOENT;
+    }
+
+    ICrypto::DestinationBuffer destination;
+    if (secure) {
+        sp<SecureBuffer> secureData =
+                static_cast<SecureBuffer *>(it->mCodecBuffer.get());
+        destination.mType = secureData->getDestinationType();
+        if (destination.mType != ICrypto::kDestinationTypeNativeHandle) {
+            return BAD_VALUE;
+        }
+        destination.mHandle =
+                static_cast<native_handle_t *>(secureData->getDestinationPointer());
+    } else {
+        destination.mType = ICrypto::kDestinationTypeSharedMemory;
+        destination.mSharedMemory = mDecryptDestination;
+    }
+
+    ICrypto::SourceBuffer source;
+    source.mSharedMemory = it->mSharedEncryptedBuffer;
+    source.mHeapSeqNum = mHeapSeqNum;
+
+    ssize_t result = -1;
+    if (mCrypto != NULL) {
+        result = mCrypto->decrypt(key, iv, mode, pattern,
+                source, it->mClientBuffer->offset(),
+                subSamples, numSubSamples, destination, errorDetailMsg);
+    } else {
+        DescrambleInfo descrambleInfo;
+        descrambleInfo.dstType = destination.mType ==
+                ICrypto::kDestinationTypeSharedMemory ?
+                DescrambleInfo::kDestinationTypeVmPointer :
+                DescrambleInfo::kDestinationTypeNativeHandle;
+        descrambleInfo.scramblingControl = key != NULL ?
+                (DescramblerPlugin::ScramblingControl)key[0] :
+                DescramblerPlugin::kScrambling_Unscrambled;
+        descrambleInfo.numSubSamples = numSubSamples;
+        descrambleInfo.subSamples = (DescramblerPlugin::SubSample *)subSamples;
+        descrambleInfo.srcMem = it->mSharedEncryptedBuffer;
+        descrambleInfo.srcOffset = 0;
+        descrambleInfo.dstPtr = NULL;
+        descrambleInfo.dstOffset = 0;
+
+        int32_t descrambleResult = -1;
+        Status status = mDescrambler->descramble(descrambleInfo, &descrambleResult);
+
+        if (status.isOk()) {
+            result = descrambleResult;
+        }
+
+        if (result < 0) {
+            ALOGE("descramble failed, exceptionCode=%d, err=%d, result=%zd",
+                    status.exceptionCode(), status.transactionError(), result);
+        } else {
+            ALOGV("descramble succeeded, result=%zd", result);
+        }
+
+        if (result > 0 && destination.mType == ICrypto::kDestinationTypeSharedMemory) {
+            memcpy(destination.mSharedMemory->pointer(),
+                    (uint8_t*)it->mSharedEncryptedBuffer->pointer(), result);
+        }
+    }
+
+    if (result < 0) {
+        return result;
+    }
+
+    if (destination.mType == ICrypto::kDestinationTypeSharedMemory) {
+        memcpy(it->mCodecBuffer->base(), destination.mSharedMemory->pointer(), result);
+    }
+
+    it->mCodecBuffer->setRange(0, result);
+
+    // Copy metadata from client to codec buffer.
+    it->mCodecBuffer->meta()->clear();
+    int64_t timeUs;
+    CHECK(it->mClientBuffer->meta()->findInt64("timeUs", &timeUs));
+    it->mCodecBuffer->meta()->setInt64("timeUs", timeUs);
+    int32_t eos;
+    if (it->mClientBuffer->meta()->findInt32("eos", &eos)) {
+        it->mCodecBuffer->meta()->setInt32("eos", eos);
+    }
+    int32_t csd;
+    if (it->mClientBuffer->meta()->findInt32("csd", &csd)) {
+        it->mCodecBuffer->meta()->setInt32("csd", csd);
+    }
+
+    ALOGV("queueSecureInputBuffer #%d", it->mBufferId);
+    sp<AMessage> msg = mInputBufferFilled->dup();
+    msg->setObject("buffer", it->mCodecBuffer);
+    msg->setInt32("buffer-id", it->mBufferId);
+    msg->post();
+    return OK;
+}
+
+status_t ACodecBufferChannel::renderOutputBuffer(
+        const sp<MediaCodecBuffer> &buffer, int64_t timestampNs) {
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mOutputBuffers));
+    BufferInfoIterator it = findClientBuffer(array, buffer);
+    if (it == array->end()) {
+        return -ENOENT;
+    }
+
+    ALOGV("renderOutputBuffer #%d", it->mBufferId);
+    sp<AMessage> msg = mOutputBufferDrained->dup();
+    msg->setObject("buffer", buffer);
+    msg->setInt32("buffer-id", it->mBufferId);
+    msg->setInt32("render", true);
+    msg->setInt64("timestampNs", timestampNs);
+    msg->post();
+    return OK;
+}
+
+status_t ACodecBufferChannel::discardBuffer(const sp<MediaCodecBuffer> &buffer) {
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mInputBuffers));
+    bool input = true;
+    BufferInfoIterator it = findClientBuffer(array, buffer);
+    if (it == array->end()) {
+        array = std::atomic_load(&mOutputBuffers);
+        input = false;
+        it = findClientBuffer(array, buffer);
+        if (it == array->end()) {
+            return -ENOENT;
+        }
+    }
+    ALOGV("discardBuffer #%d", it->mBufferId);
+    sp<AMessage> msg = input ? mInputBufferFilled->dup() : mOutputBufferDrained->dup();
+    msg->setObject("buffer", it->mCodecBuffer);
+    msg->setInt32("buffer-id", it->mBufferId);
+    msg->setInt32("discarded", true);
+    msg->post();
+    return OK;
+}
+
+void ACodecBufferChannel::getInputBufferArray(Vector<sp<MediaCodecBuffer>> *array) {
+    std::shared_ptr<const std::vector<const BufferInfo>> inputBuffers(
+            std::atomic_load(&mInputBuffers));
+    array->clear();
+    for (const BufferInfo &elem : *inputBuffers) {
+        array->push_back(elem.mClientBuffer);
+    }
+}
+
+void ACodecBufferChannel::getOutputBufferArray(Vector<sp<MediaCodecBuffer>> *array) {
+    std::shared_ptr<const std::vector<const BufferInfo>> outputBuffers(
+            std::atomic_load(&mOutputBuffers));
+    array->clear();
+    for (const BufferInfo &elem : *outputBuffers) {
+        array->push_back(elem.mClientBuffer);
+    }
+}
+
+sp<MemoryDealer> ACodecBufferChannel::makeMemoryDealer(size_t heapSize) {
+    sp<MemoryDealer> dealer;
+    if (mDealer != nullptr && mCrypto != nullptr && mHeapSeqNum >= 0) {
+        mCrypto->unsetHeap(mHeapSeqNum);
+    }
+    dealer = new MemoryDealer(heapSize, "ACodecBufferChannel");
+    if (mCrypto != nullptr) {
+        int32_t seqNum = mCrypto->setHeap(dealer->getMemoryHeap());
+        if (seqNum >= 0) {
+            mHeapSeqNum = seqNum;
+            ALOGD("setHeap returned mHeapSeqNum=%d", mHeapSeqNum);
+        } else {
+            mHeapSeqNum = -1;
+            ALOGD("setHeap failed, setting mHeapSeqNum=-1");
+        }
+    }
+    return dealer;
+}
+
+void ACodecBufferChannel::setInputBufferArray(const std::vector<BufferAndId> &array) {
+    if (hasCryptoOrDescrambler()) {
+        size_t totalSize = std::accumulate(
+                array.begin(), array.end(), 0u,
+                [alignment = MemoryDealer::getAllocationAlignment()]
+                (size_t sum, const BufferAndId& elem) {
+                    return sum + align(elem.mBuffer->capacity(), alignment);
+                });
+        size_t maxSize = std::accumulate(
+                array.begin(), array.end(), 0u,
+                [alignment = MemoryDealer::getAllocationAlignment()]
+                (size_t max, const BufferAndId& elem) {
+                    return std::max(max, align(elem.mBuffer->capacity(), alignment));
+                });
+        size_t destinationBufferSize = maxSize;
+        size_t heapSize = totalSize + destinationBufferSize;
+        if (heapSize > 0) {
+            mDealer = makeMemoryDealer(heapSize);
+            mDecryptDestination = mDealer->allocate(destinationBufferSize);
+        }
+    }
+    std::vector<const BufferInfo> inputBuffers;
+    for (const BufferAndId &elem : array) {
+        sp<IMemory> sharedEncryptedBuffer;
+        if (hasCryptoOrDescrambler()) {
+            sharedEncryptedBuffer = mDealer->allocate(elem.mBuffer->capacity());
+        }
+        inputBuffers.emplace_back(elem.mBuffer, elem.mBufferId, sharedEncryptedBuffer);
+    }
+    std::atomic_store(
+            &mInputBuffers,
+            std::make_shared<const std::vector<const BufferInfo>>(inputBuffers));
+}
+
+void ACodecBufferChannel::setOutputBufferArray(const std::vector<BufferAndId> &array) {
+    std::vector<const BufferInfo> outputBuffers;
+    for (const BufferAndId &elem : array) {
+        outputBuffers.emplace_back(elem.mBuffer, elem.mBufferId, nullptr);
+    }
+    std::atomic_store(
+            &mOutputBuffers,
+            std::make_shared<const std::vector<const BufferInfo>>(outputBuffers));
+}
+
+void ACodecBufferChannel::fillThisBuffer(IOMX::buffer_id bufferId) {
+    ALOGV("fillThisBuffer #%d", bufferId);
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mInputBuffers));
+    BufferInfoIterator it = findBufferId(array, bufferId);
+
+    if (it == array->end()) {
+        ALOGE("fillThisBuffer: unrecognized buffer #%d", bufferId);
+        return;
+    }
+    if (it->mClientBuffer != it->mCodecBuffer) {
+        it->mClientBuffer->setFormat(it->mCodecBuffer->format());
+    }
+
+    mCallback->onInputBufferAvailable(
+            std::distance(array->begin(), it),
+            it->mClientBuffer);
+}
+
+void ACodecBufferChannel::drainThisBuffer(
+        IOMX::buffer_id bufferId,
+        OMX_U32 omxFlags) {
+    ALOGV("drainThisBuffer #%d", bufferId);
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mOutputBuffers));
+    BufferInfoIterator it = findBufferId(array, bufferId);
+
+    if (it == array->end()) {
+        ALOGE("drainThisBuffer: unrecognized buffer #%d", bufferId);
+        return;
+    }
+    if (it->mClientBuffer != it->mCodecBuffer) {
+        it->mClientBuffer->setFormat(it->mCodecBuffer->format());
+    }
+
+    uint32_t flags = 0;
+    if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
+        flags |= MediaCodec::BUFFER_FLAG_SYNCFRAME;
+    }
+    if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
+        flags |= MediaCodec::BUFFER_FLAG_CODECCONFIG;
+    }
+    if (omxFlags & OMX_BUFFERFLAG_EOS) {
+        flags |= MediaCodec::BUFFER_FLAG_EOS;
+    }
+    it->mClientBuffer->meta()->setInt32("flags", flags);
+
+    mCallback->onOutputBufferAvailable(
+            std::distance(array->begin(), it),
+            it->mClientBuffer);
+}
+
+}  // namespace android
diff --git a/media/libstagefright/Android.bp b/media/libstagefright/Android.bp
new file mode 100644
index 0000000..3d9341b
--- /dev/null
+++ b/media/libstagefright/Android.bp
@@ -0,0 +1 @@
+subdirs = ["foundation"]
diff --git a/media/libstagefright/Android.mk b/media/libstagefright/Android.mk
index 3848502..372b11a 100644
--- a/media/libstagefright/Android.mk
+++ b/media/libstagefright/Android.mk
@@ -4,20 +4,20 @@
 
 LOCAL_SRC_FILES:=                         \
         ACodec.cpp                        \
+        ACodecBufferChannel.cpp           \
         AACExtractor.cpp                  \
         AACWriter.cpp                     \
         AMRExtractor.cpp                  \
         AMRWriter.cpp                     \
         AudioPlayer.cpp                   \
         AudioSource.cpp                   \
+        BufferImpl.cpp                    \
         CallbackDataSource.cpp            \
         CameraSource.cpp                  \
         CameraSourceTimeLapse.cpp         \
-        CodecBase.cpp                     \
         DataConverter.cpp                 \
         DataSource.cpp                    \
         DataURISource.cpp                 \
-        DRMExtractor.cpp                  \
         ESDS.cpp                          \
         FileSource.cpp                    \
         FLACExtractor.cpp                 \
@@ -35,7 +35,6 @@
         MediaCodecList.cpp                \
         MediaCodecListOverrides.cpp       \
         MediaCodecSource.cpp              \
-        MediaDefs.cpp                     \
         MediaExtractor.cpp                \
         MediaSync.cpp                     \
         MidiExtractor.cpp                 \
@@ -46,7 +45,6 @@
         NuMediaExtractor.cpp              \
         OMXClient.cpp                     \
         OggExtractor.cpp                  \
-        ProcessInfo.cpp                   \
         SampleIterator.cpp                \
         SampleTable.cpp                   \
         SimpleDecodingSource.cpp          \
@@ -60,7 +58,6 @@
         VBRISeeker.cpp                    \
         VideoFrameScheduler.cpp           \
         WAVExtractor.cpp                  \
-        WVMExtractor.cpp                  \
         XINGSeeker.cpp                    \
         avc_utils.cpp                     \
 
@@ -72,6 +69,8 @@
         $(TOP)/external/flac/include \
         $(TOP)/external/tremolo \
         $(TOP)/external/libvpx/libwebm \
+        $(TOP)/external/icu/icu4c/source/common \
+        $(TOP)/external/icu/icu4c/source/i18n \
         $(TOP)/system/netd/include \
         $(call include-path-for, audio-utils)
 
@@ -79,28 +78,25 @@
         libaudioutils \
         libbinder \
         libcamera_client \
+        libcrypto \
         libcutils \
         libdl \
         libdrmframework \
         libexpat \
         libgui \
-        libicui18n \
-        libicuuc \
         liblog \
         libmedia \
+        libaudioclient \
+        libmediametrics \
         libmediautils \
         libnetd_client \
-        libopus \
         libsonivox \
-        libssl \
         libstagefright_omx \
-        libstagefright_yuv \
-        libsync \
         libui \
         libutils \
         libvorbisidec \
-        libz \
-        libpowermanager
+        libmediadrm \
+        libnativewindow \
 
 LOCAL_STATIC_LIBRARIES := \
         libstagefright_color_conversion \
@@ -115,14 +111,20 @@
         libstagefright_mpeg2ts \
         libstagefright_id3 \
         libFLAC \
-        libmedia_helper \
 
 LOCAL_SHARED_LIBRARIES += \
-        libstagefright_enc_common \
-        libstagefright_avc_common \
+        libmedia_helper \
         libstagefright_foundation \
         libdl \
         libRScpp \
+        libhidlbase \
+        libhidlmemory \
+        android.hidl.allocator@1.0 \
+        android.hidl.memory@1.0 \
+        android.hardware.media.omx@1.0 \
+        libstagefright_xmlparser@1.0 \
+
+LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := libmedia
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wno-error=deprecated-declarations -Wall
 
@@ -131,8 +133,8 @@
 LOCAL_CFLAGS += -DENABLE_STAGEFRIGHT_EXPERIMENTS
 endif
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_MODULE:= libstagefright
 
diff --git a/media/libstagefright/AudioSource.cpp b/media/libstagefright/AudioSource.cpp
index efdee77..4ccd2d0 100644
--- a/media/libstagefright/AudioSource.cpp
+++ b/media/libstagefright/AudioSource.cpp
@@ -62,6 +62,8 @@
       mPrevSampleTimeUs(0),
       mInitialReadTimeUs(0),
       mNumFramesReceived(0),
+      mNumFramesSkipped(0),
+      mNumFramesLost(0),
       mNumClientOwnedBuffers(0) {
     ALOGV("sampleRate: %u, outSampleRate: %u, channelCount: %u",
             sampleRate, outSampleRate, channelCount);
@@ -295,11 +297,27 @@
 }
 
 status_t AudioSource::dataCallback(const AudioRecord::Buffer& audioBuffer) {
-    int64_t timeUs = systemTime() / 1000ll;
-    // Estimate the real sampling time of the 1st sample in this buffer
-    // from AudioRecord's latency. (Apply this adjustment first so that
-    // the start time logic is not affected.)
-    timeUs -= mRecord->latency() * 1000LL;
+    int64_t timeUs, position, timeNs;
+    ExtendedTimestamp ts;
+    ExtendedTimestamp::Location location;
+    const int32_t usPerSec = 1000000;
+
+    if (mRecord->getTimestamp(&ts) == OK &&
+            ts.getBestTimestamp(&position, &timeNs, ExtendedTimestamp::TIMEBASE_MONOTONIC,
+            &location) == OK) {
+        // Use audio timestamp.
+        timeUs = timeNs / 1000 -
+                (position - mNumFramesSkipped -
+                mNumFramesReceived + mNumFramesLost) * usPerSec / mSampleRate;
+    } else {
+        // This should not happen in normal case.
+        ALOGW("Failed to get audio timestamp, fallback to use systemclock");
+        timeUs = systemTime() / 1000ll;
+        // Estimate the real sampling time of the 1st sample in this buffer
+        // from AudioRecord's latency. (Apply this adjustment first so that
+        // the start time logic is not affected.)
+        timeUs -= mRecord->latency() * 1000LL;
+    }
 
     ALOGV("dataCallbackTimestamp: %" PRId64 " us", timeUs);
     Mutex::Autolock autoLock(mLock);
@@ -308,10 +326,15 @@
         return OK;
     }
 
+    const size_t bufferSize = audioBuffer.size;
+
     // Drop retrieved and previously lost audio data.
     if (mNumFramesReceived == 0 && timeUs < mStartTimeUs) {
         (void) mRecord->getInputFramesLost();
-        ALOGV("Drop audio data at %" PRId64 "/%" PRId64 " us", timeUs, mStartTimeUs);
+        int64_t receievedFrames = bufferSize / mRecord->frameSize();
+        ALOGV("Drop audio data(%" PRId64 " frames) at %" PRId64 "/%" PRId64 " us",
+                receievedFrames, timeUs, mStartTimeUs);
+        mNumFramesSkipped += receievedFrames;
         return OK;
     }
 
@@ -320,11 +343,7 @@
         // Initial delay
         if (mStartTimeUs > 0) {
             mStartTimeUs = timeUs - mStartTimeUs;
-        } else {
-            // Assume latency is constant.
-            mStartTimeUs += mRecord->latency() * 1000;
         }
-
         mPrevSampleTimeUs = mStartTimeUs;
     }
 
@@ -354,6 +373,7 @@
         MediaBuffer *lostAudioBuffer = new MediaBuffer(bufferSize);
         memset(lostAudioBuffer->data(), 0, bufferSize);
         lostAudioBuffer->set_range(0, bufferSize);
+        mNumFramesLost += bufferSize / mRecord->frameSize();
         queueInputBuffer_l(lostAudioBuffer, timeUs);
     }
 
@@ -362,7 +382,6 @@
         return OK;
     }
 
-    const size_t bufferSize = audioBuffer.size;
     MediaBuffer *buffer = new MediaBuffer(bufferSize);
     memcpy((uint8_t *) buffer->data(),
             audioBuffer.i16, audioBuffer.size);
diff --git a/media/libstagefright/BufferImpl.cpp b/media/libstagefright/BufferImpl.cpp
new file mode 100644
index 0000000..fee3739
--- /dev/null
+++ b/media/libstagefright/BufferImpl.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "BufferImpl"
+#include <utils/Log.h>
+
+#include <binder/IMemory.h>
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/AMessage.h>
+#include <media/ICrypto.h>
+#include <utils/NativeHandle.h>
+
+#include "include/SecureBuffer.h"
+#include "include/SharedMemoryBuffer.h"
+
+namespace android {
+
+SharedMemoryBuffer::SharedMemoryBuffer(const sp<AMessage> &format, const sp<IMemory> &mem)
+    : MediaCodecBuffer(format, new ABuffer(mem->pointer(), mem->size())),
+      mMemory(mem) {
+}
+
+SharedMemoryBuffer::SharedMemoryBuffer(const sp<AMessage> &format, const sp<TMemory> &mem)
+    : MediaCodecBuffer(format, new ABuffer(mem->getPointer(), mem->getSize())),
+      mTMemory(mem) {
+}
+
+SecureBuffer::SecureBuffer(const sp<AMessage> &format, const void *ptr, size_t size)
+    : MediaCodecBuffer(format, new ABuffer(nullptr, size)),
+      mPointer(ptr) {
+}
+
+SecureBuffer::SecureBuffer(
+        const sp<AMessage> &format, const sp<NativeHandle> &handle, size_t size)
+    : MediaCodecBuffer(format, new ABuffer(nullptr, size)),
+      mPointer(nullptr),
+      mHandle(handle) {
+}
+
+void *SecureBuffer::getDestinationPointer() {
+    return (void *)(mHandle == nullptr ? mPointer : mHandle->handle());
+}
+
+ICrypto::DestinationType SecureBuffer::getDestinationType() {
+    return ICrypto::kDestinationTypeNativeHandle;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/CallbackDataSource.cpp b/media/libstagefright/CallbackDataSource.cpp
index 0df7da4..4309372 100644
--- a/media/libstagefright/CallbackDataSource.cpp
+++ b/media/libstagefright/CallbackDataSource.cpp
@@ -51,7 +51,7 @@
 }
 
 ssize_t CallbackDataSource::readAt(off64_t offset, void* data, size_t size) {
-    if (mMemory == NULL) {
+    if (mMemory == NULL || data == NULL) {
         return -1;
     }
 
@@ -113,6 +113,10 @@
     return mIDataSource->DrmInitialization(mime);
 }
 
+sp<IDataSource> CallbackDataSource::getIDataSource() const {
+    return mIDataSource;
+}
+
 TinyCacheSource::TinyCacheSource(const sp<DataSource>& source)
     : mSource(source), mCachedOffset(0), mCachedSize(0) {
     mName = String8::format("TinyCacheSource(%s)", mSource->toString().string());
@@ -190,4 +194,9 @@
     mCachedSize = 0;
     return mSource->DrmInitialization(mime);
 }
+
+sp<IDataSource> TinyCacheSource::getIDataSource() const {
+    return mSource->getIDataSource();
+}
+
 } // namespace android
diff --git a/media/libstagefright/CameraSource.cpp b/media/libstagefright/CameraSource.cpp
index b7d9965..1cd7693 100644
--- a/media/libstagefright/CameraSource.cpp
+++ b/media/libstagefright/CameraSource.cpp
@@ -47,7 +47,7 @@
 static const int64_t CAMERA_SOURCE_TIMEOUT_NS = 3000000000LL;
 
 struct CameraSourceListener : public CameraListener {
-    CameraSourceListener(const sp<CameraSource> &source);
+    explicit CameraSourceListener(const sp<CameraSource> &source);
 
     virtual void notify(int32_t msgType, int32_t ext1, int32_t ext2);
     virtual void postData(int32_t msgType, const sp<IMemory> &dataPtr,
@@ -58,6 +58,10 @@
 
     virtual void postRecordingFrameHandleTimestamp(nsecs_t timestamp, native_handle_t* handle);
 
+    virtual void postRecordingFrameHandleTimestampBatch(
+                const std::vector<nsecs_t>& timestamps,
+                const std::vector<native_handle_t*>& handles);
+
 protected:
     virtual ~CameraSourceListener();
 
@@ -110,7 +114,26 @@
     }
 }
 
+void CameraSourceListener::postRecordingFrameHandleTimestampBatch(
+        const std::vector<nsecs_t>& timestamps,
+        const std::vector<native_handle_t*>& handles) {
+    sp<CameraSource> source = mSource.promote();
+    if (source.get() != nullptr) {
+        int n = timestamps.size();
+        std::vector<nsecs_t> modifiedTimestamps(n);
+        for (int i = 0; i < n; i++) {
+            modifiedTimestamps[i] = timestamps[i] / 1000;
+        }
+        source->recordingFrameHandleCallbackTimestampBatch(modifiedTimestamps, handles);
+    }
+}
+
 static int32_t getColorFormat(const char* colorFormat) {
+    if (!colorFormat) {
+        ALOGE("Invalid color format");
+        return -1;
+    }
+
     if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV420P)) {
        return OMX_COLOR_FormatYUV420Planar;
     }
@@ -765,9 +788,7 @@
         return mInitCheck;
     }
 
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("media.stagefright.record-stats", value, NULL)
-        && (!strcmp(value, "1") || !strcasecmp(value, "true"))) {
+    if (property_get_bool("media.stagefright.record-stats", false)) {
         mCollectStats = true;
     }
 
@@ -949,7 +970,6 @@
         }
 
         if (handle != nullptr) {
-            // Frame contains a VideoNativeHandleMetadata. Send the handle back to camera.
             ssize_t offset;
             size_t size;
             sp<IMemoryHeap> heap = frame->getMemory(&offset, &size);
@@ -958,9 +978,35 @@
 		     __FUNCTION__, heap->getHeapID(), mMemoryHeapBase->getHeapID());
                 return;
             }
-            releaseRecordingFrameHandle(handle);
-            mMemoryBases.push_back(frame);
-            mMemoryBaseAvailableCond.signal();
+            uint32_t batchSize = 0;
+            {
+                Mutex::Autolock autoLock(mBatchLock);
+                if (mInflightBatchSizes.size() > 0) {
+                    batchSize = mInflightBatchSizes[0];
+                }
+            }
+            if (batchSize == 0) { // return buffers one by one
+                // Frame contains a VideoNativeHandleMetadata. Send the handle back to camera.
+                releaseRecordingFrameHandle(handle);
+                mMemoryBases.push_back(frame);
+                mMemoryBaseAvailableCond.signal();
+            } else { // Group buffers in batch then return
+                Mutex::Autolock autoLock(mBatchLock);
+                mInflightReturnedHandles.push_back(handle);
+                mInflightReturnedMemorys.push_back(frame);
+                if (mInflightReturnedHandles.size() == batchSize) {
+                    releaseRecordingFrameHandleBatch(mInflightReturnedHandles);
+
+                    mInflightBatchSizes.pop_front();
+                    mInflightReturnedHandles.clear();
+                    for (const auto& mem : mInflightReturnedMemorys) {
+                        mMemoryBases.push_back(mem);
+                        mMemoryBaseAvailableCond.signal();
+                    }
+                    mInflightReturnedMemorys.clear();
+                }
+            }
+
         } else if (mCameraRecordingProxy != nullptr) {
             // mCamera is created by application. Return the frame back to camera via camera
             // recording proxy.
@@ -1131,6 +1177,21 @@
     }
 }
 
+void CameraSource::releaseRecordingFrameHandleBatch(const std::vector<native_handle_t*>& handles) {
+    if (mCameraRecordingProxy != nullptr) {
+        mCameraRecordingProxy->releaseRecordingFrameHandleBatch(handles);
+    } else if (mCamera != nullptr) {
+        int64_t token = IPCThreadState::self()->clearCallingIdentity();
+        mCamera->releaseRecordingFrameHandleBatch(handles);
+        IPCThreadState::self()->restoreCallingIdentity(token);
+    } else {
+        for (auto& handle : handles) {
+            native_handle_close(handle);
+            native_handle_delete(handle);
+        }
+    }
+}
+
 void CameraSource::recordingFrameHandleCallbackTimestamp(int64_t timestampUs,
                 native_handle_t* handle) {
     ALOGV("%s: timestamp %lld us", __FUNCTION__, (long long)timestampUs);
@@ -1168,6 +1229,62 @@
     mFrameAvailableCondition.signal();
 }
 
+void CameraSource::recordingFrameHandleCallbackTimestampBatch(
+        const std::vector<int64_t>& timestampsUs,
+        const std::vector<native_handle_t*>& handles) {
+    size_t n = timestampsUs.size();
+    if (n != handles.size()) {
+        ALOGE("%s: timestampsUs(%zu) and handles(%zu) size mismatch!",
+                __FUNCTION__, timestampsUs.size(), handles.size());
+    }
+
+    Mutex::Autolock autoLock(mLock);
+    int batchSize = 0;
+    for (size_t i = 0; i < n; i++) {
+        int64_t timestampUs = timestampsUs[i];
+        native_handle_t* handle = handles[i];
+
+        ALOGV("%s: timestamp %lld us", __FUNCTION__, (long long)timestampUs);
+        if (handle == nullptr) continue;
+
+        if (shouldSkipFrameLocked(timestampUs)) {
+            releaseRecordingFrameHandle(handle);
+            continue;
+        }
+
+        while (mMemoryBases.empty()) {
+            if (mMemoryBaseAvailableCond.waitRelative(mLock, kMemoryBaseAvailableTimeoutNs) ==
+                    TIMED_OUT) {
+                ALOGW("Waiting on an available memory base timed out. Dropping a recording frame.");
+                releaseRecordingFrameHandle(handle);
+                continue;
+            }
+        }
+        ++batchSize;
+        ++mNumFramesReceived;
+        sp<IMemory> data = *mMemoryBases.begin();
+        mMemoryBases.erase(mMemoryBases.begin());
+
+        // Wrap native handle in sp<IMemory> so it can be pushed to mFramesReceived.
+        VideoNativeHandleMetadata *metadata = (VideoNativeHandleMetadata*)(data->pointer());
+        metadata->eType = kMetadataBufferTypeNativeHandleSource;
+        metadata->pHandle = handle;
+
+        mFramesReceived.push_back(data);
+        int64_t timeUs = mStartTimeUs + (timestampUs - mFirstFrameTimeUs);
+        mFrameTimes.push_back(timeUs);
+        ALOGV("initial delay: %" PRId64 ", current time stamp: %" PRId64, mStartTimeUs, timeUs);
+
+    }
+    if (batchSize > 0) {
+        Mutex::Autolock autoLock(mBatchLock);
+        mInflightBatchSizes.push_back(batchSize);
+    }
+    for (int i = 0; i < batchSize; i++) {
+        mFrameAvailableCondition.signal();
+    }
+}
+
 CameraSource::BufferQueueListener::BufferQueueListener(const sp<BufferItemConsumer>& consumer,
         const sp<CameraSource>& cameraSource) {
     mConsumer = consumer;
@@ -1284,6 +1401,17 @@
     mSource->recordingFrameHandleCallbackTimestamp(timestamp / 1000, handle);
 }
 
+void CameraSource::ProxyListener::recordingFrameHandleCallbackTimestampBatch(
+        const std::vector<int64_t>& timestampsUs,
+        const std::vector<native_handle_t*>& handles) {
+    int n = timestampsUs.size();
+    std::vector<nsecs_t> modifiedTimestamps(n);
+    for (int i = 0; i < n; i++) {
+        modifiedTimestamps[i] = timestampsUs[i] / 1000;
+    }
+    mSource->recordingFrameHandleCallbackTimestampBatch(modifiedTimestamps, handles);
+}
+
 void CameraSource::DeathNotifier::binderDied(const wp<IBinder>& who __unused) {
     ALOGI("Camera recording proxy died");
 }
diff --git a/media/libstagefright/CameraSourceTimeLapse.cpp b/media/libstagefright/CameraSourceTimeLapse.cpp
index 390c556..970526a 100644
--- a/media/libstagefright/CameraSourceTimeLapse.cpp
+++ b/media/libstagefright/CameraSourceTimeLapse.cpp
@@ -315,6 +315,17 @@
     CameraSource::recordingFrameHandleCallbackTimestamp(timestampUs, handle);
 }
 
+void CameraSourceTimeLapse::recordingFrameHandleCallbackTimestampBatch(
+        const std::vector<int64_t>& timestampsUs,
+        const std::vector<native_handle_t*>& handles) {
+    ALOGV("recordingFrameHandleCallbackTimestampBatch");
+    int n = timestampsUs.size();
+    for (int i = 0; i < n; i++) {
+        // Don't do batching for CameraSourceTimeLapse for now
+        recordingFrameHandleCallbackTimestamp(timestampsUs[i], handles[i]);
+    }
+}
+
 void CameraSourceTimeLapse::processBufferQueueFrame(BufferItem& buffer) {
     ALOGV("processBufferQueueFrame");
     int64_t timestampUs = buffer.mTimestamp / 1000;
diff --git a/media/libstagefright/CodecBase.cpp b/media/libstagefright/CodecBase.cpp
deleted file mode 100644
index f729d4d..0000000
--- a/media/libstagefright/CodecBase.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "CodecBase"
-
-#include <inttypes.h>
-
-#include <media/stagefright/CodecBase.h>
-
-namespace android {
-
-CodecBase::CodecBase() {
-}
-
-CodecBase::~CodecBase() {
-}
-
-CodecBase::PortDescription::PortDescription() {
-}
-
-CodecBase::PortDescription::~PortDescription() {
-}
-
-}  // namespace android
diff --git a/media/libstagefright/DRMExtractor.cpp b/media/libstagefright/DRMExtractor.cpp
deleted file mode 100644
index d36ac65..0000000
--- a/media/libstagefright/DRMExtractor.cpp
+++ /dev/null
@@ -1,306 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "include/DRMExtractor.h"
-
-#include <arpa/inet.h>
-#include <utils/String8.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/Utils.h>
-#include <media/stagefright/DataSource.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/MetaData.h>
-#include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/MediaBuffer.h>
-
-#include <drm/drm_framework_common.h>
-#include <utils/Errors.h>
-
-
-namespace android {
-
-class DRMSource : public MediaSource {
-public:
-    DRMSource(const sp<IMediaSource> &mediaSource,
-            const sp<DecryptHandle> &decryptHandle,
-            DrmManagerClient *managerClient,
-            int32_t trackId, DrmBuffer *ipmpBox);
-
-    virtual status_t start(MetaData *params = NULL);
-    virtual status_t stop();
-    virtual sp<MetaData> getFormat();
-    virtual status_t read(
-            MediaBuffer **buffer, const ReadOptions *options = NULL);
-
-protected:
-    virtual ~DRMSource();
-
-private:
-    sp<IMediaSource> mOriginalMediaSource;
-    sp<DecryptHandle> mDecryptHandle;
-    DrmManagerClient* mDrmManagerClient;
-    size_t mTrackId;
-    mutable Mutex mDRMLock;
-    size_t mNALLengthSize;
-    bool mWantsNALFragments;
-
-    DRMSource(const DRMSource &);
-    DRMSource &operator=(const DRMSource &);
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-DRMSource::DRMSource(const sp<IMediaSource> &mediaSource,
-        const sp<DecryptHandle> &decryptHandle,
-        DrmManagerClient *managerClient,
-        int32_t trackId, DrmBuffer *ipmpBox)
-    : mOriginalMediaSource(mediaSource),
-      mDecryptHandle(decryptHandle),
-      mDrmManagerClient(managerClient),
-      mTrackId(trackId),
-      mNALLengthSize(0),
-      mWantsNALFragments(false) {
-    CHECK(mDrmManagerClient);
-    mDrmManagerClient->initializeDecryptUnit(
-            mDecryptHandle, trackId, ipmpBox);
-
-    const char *mime;
-    bool success = getFormat()->findCString(kKeyMIMEType, &mime);
-    CHECK(success);
-
-    if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)) {
-        uint32_t type;
-        const void *data;
-        size_t size;
-        CHECK(getFormat()->findData(kKeyAVCC, &type, &data, &size));
-
-        const uint8_t *ptr = (const uint8_t *)data;
-
-        CHECK(size >= 7);
-        CHECK_EQ(ptr[0], 1);  // configurationVersion == 1
-
-        // The number of bytes used to encode the length of a NAL unit.
-        mNALLengthSize = 1 + (ptr[4] & 3);
-    }
-}
-
-DRMSource::~DRMSource() {
-    Mutex::Autolock autoLock(mDRMLock);
-    mDrmManagerClient->finalizeDecryptUnit(mDecryptHandle, mTrackId);
-}
-
-status_t DRMSource::start(MetaData *params) {
-    int32_t val;
-    if (params && params->findInt32(kKeyWantsNALFragments, &val)
-        && val != 0) {
-        mWantsNALFragments = true;
-    } else {
-        mWantsNALFragments = false;
-    }
-
-   return mOriginalMediaSource->start(params);
-}
-
-status_t DRMSource::stop() {
-    return mOriginalMediaSource->stop();
-}
-
-sp<MetaData> DRMSource::getFormat() {
-    return mOriginalMediaSource->getFormat();
-}
-
-status_t DRMSource::read(MediaBuffer **buffer, const ReadOptions *options) {
-    Mutex::Autolock autoLock(mDRMLock);
-    status_t err;
-    if ((err = mOriginalMediaSource->read(buffer, options)) != OK) {
-        return err;
-    }
-
-    size_t len = (*buffer)->range_length();
-
-    char *src = (char *)(*buffer)->data() + (*buffer)->range_offset();
-
-    DrmBuffer encryptedDrmBuffer(src, len);
-    DrmBuffer decryptedDrmBuffer;
-    decryptedDrmBuffer.length = len;
-    decryptedDrmBuffer.data = new char[len];
-    DrmBuffer *pDecryptedDrmBuffer = &decryptedDrmBuffer;
-
-    if ((err = mDrmManagerClient->decrypt(mDecryptHandle, mTrackId,
-            &encryptedDrmBuffer, &pDecryptedDrmBuffer)) != NO_ERROR) {
-
-        if (decryptedDrmBuffer.data) {
-            delete [] decryptedDrmBuffer.data;
-            decryptedDrmBuffer.data = NULL;
-        }
-
-        return err;
-    }
-    CHECK(pDecryptedDrmBuffer == &decryptedDrmBuffer);
-
-    const char *mime;
-    CHECK(getFormat()->findCString(kKeyMIMEType, &mime));
-
-    if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC) && !mWantsNALFragments) {
-        uint8_t *dstData = (uint8_t*)src;
-        size_t srcOffset = 0;
-        size_t dstOffset = 0;
-
-        len = decryptedDrmBuffer.length;
-        while (srcOffset < len) {
-            CHECK(srcOffset + mNALLengthSize <= len);
-            size_t nalLength = 0;
-            const uint8_t* data = (const uint8_t*)(&decryptedDrmBuffer.data[srcOffset]);
-
-            switch (mNALLengthSize) {
-                case 1:
-                    nalLength = *data;
-                    break;
-                case 2:
-                    nalLength = U16_AT(data);
-                    break;
-                case 3:
-                    nalLength = ((size_t)data[0] << 16) | U16_AT(&data[1]);
-                    break;
-                case 4:
-                    nalLength = U32_AT(data);
-                    break;
-                default:
-                    CHECK(!"Should not be here.");
-                    break;
-            }
-
-            srcOffset += mNALLengthSize;
-
-            size_t end = srcOffset + nalLength;
-            if (end > len || end < srcOffset) {
-                if (decryptedDrmBuffer.data) {
-                    delete [] decryptedDrmBuffer.data;
-                    decryptedDrmBuffer.data = NULL;
-                }
-
-                return ERROR_MALFORMED;
-            }
-
-            if (nalLength == 0) {
-                continue;
-            }
-
-            if (dstOffset > SIZE_MAX - 4 ||
-                dstOffset + 4 > SIZE_MAX - nalLength ||
-                dstOffset + 4 + nalLength > (*buffer)->size()) {
-                (*buffer)->release();
-                (*buffer) = NULL;
-                if (decryptedDrmBuffer.data) {
-                    delete [] decryptedDrmBuffer.data;
-                    decryptedDrmBuffer.data = NULL;
-                }
-                return ERROR_MALFORMED;
-            }
-
-            dstData[dstOffset++] = 0;
-            dstData[dstOffset++] = 0;
-            dstData[dstOffset++] = 0;
-            dstData[dstOffset++] = 1;
-            memcpy(&dstData[dstOffset], &decryptedDrmBuffer.data[srcOffset], nalLength);
-            srcOffset += nalLength;
-            dstOffset += nalLength;
-        }
-
-        CHECK_EQ(srcOffset, len);
-        (*buffer)->set_range((*buffer)->range_offset(), dstOffset);
-
-    } else {
-        memcpy(src, decryptedDrmBuffer.data, decryptedDrmBuffer.length);
-        (*buffer)->set_range((*buffer)->range_offset(), decryptedDrmBuffer.length);
-    }
-
-    if (decryptedDrmBuffer.data) {
-        delete [] decryptedDrmBuffer.data;
-        decryptedDrmBuffer.data = NULL;
-    }
-
-    return OK;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-DRMExtractor::DRMExtractor(const sp<DataSource> &source, const char* mime)
-    : mDataSource(source),
-      mDecryptHandle(NULL),
-      mDrmManagerClient(NULL) {
-    mOriginalExtractor = MediaExtractor::Create(source, mime);
-    mOriginalExtractor->setDrmFlag(true);
-    mOriginalExtractor->getMetaData()->setInt32(kKeyIsDRM, 1);
-
-    source->getDrmInfo(mDecryptHandle, &mDrmManagerClient);
-}
-
-DRMExtractor::~DRMExtractor() {
-}
-
-size_t DRMExtractor::countTracks() {
-    return mOriginalExtractor->countTracks();
-}
-
-sp<IMediaSource> DRMExtractor::getTrack(size_t index) {
-    sp<IMediaSource> originalMediaSource = mOriginalExtractor->getTrack(index);
-    originalMediaSource->getFormat()->setInt32(kKeyIsDRM, 1);
-
-    int32_t trackID;
-    CHECK(getTrackMetaData(index, 0)->findInt32(kKeyTrackID, &trackID));
-
-    DrmBuffer ipmpBox;
-    ipmpBox.data = mOriginalExtractor->getDrmTrackInfo(trackID, &(ipmpBox.length));
-    CHECK(ipmpBox.length > 0);
-
-    return interface_cast<IMediaSource>(
-            new DRMSource(originalMediaSource, mDecryptHandle, mDrmManagerClient,
-            trackID, &ipmpBox));
-}
-
-sp<MetaData> DRMExtractor::getTrackMetaData(size_t index, uint32_t flags) {
-    return mOriginalExtractor->getTrackMetaData(index, flags);
-}
-
-sp<MetaData> DRMExtractor::getMetaData() {
-    return mOriginalExtractor->getMetaData();
-}
-
-bool SniffDRM(
-    const sp<DataSource> &source, String8 *mimeType, float *confidence,
-        sp<AMessage> *) {
-    sp<DecryptHandle> decryptHandle = source->DrmInitialization();
-
-    if (decryptHandle != NULL) {
-        if (decryptHandle->decryptApiType == DecryptApiType::CONTAINER_BASED) {
-            *mimeType = String8("drm+container_based+") + decryptHandle->mimeType;
-            *confidence = 10.0f;
-        } else if (decryptHandle->decryptApiType == DecryptApiType::ELEMENTARY_STREAM_BASED) {
-            *mimeType = String8("drm+es_based+") + decryptHandle->mimeType;
-            *confidence = 10.0f;
-        } else {
-            return false;
-        }
-
-        return true;
-    }
-
-    return false;
-}
-} //namespace android
-
diff --git a/media/libstagefright/DataConverter.cpp b/media/libstagefright/DataConverter.cpp
index aea47f3..52be054 100644
--- a/media/libstagefright/DataConverter.cpp
+++ b/media/libstagefright/DataConverter.cpp
@@ -21,13 +21,13 @@
 
 #include <audio_utils/primitives.h>
 
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AUtils.h>
 
 namespace android {
 
-status_t DataConverter::convert(const sp<ABuffer> &source, sp<ABuffer> &target) {
+status_t DataConverter::convert(const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target) {
     CHECK(source->base() != target->base());
     size_t size = targetSize(source->size());
     status_t err = OK;
@@ -43,7 +43,8 @@
     return err;
 }
 
-status_t DataConverter::safeConvert(const sp<ABuffer> &source, sp<ABuffer> &target) {
+status_t DataConverter::safeConvert(
+        const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target) {
     memcpy(target->base(), source->data(), source->size());
     return OK;
 }
@@ -101,7 +102,7 @@
     return NULL;
 }
 
-status_t AudioConverter::safeConvert(const sp<ABuffer> &src, sp<ABuffer> &tgt) {
+status_t AudioConverter::safeConvert(const sp<MediaCodecBuffer> &src, sp<MediaCodecBuffer> &tgt) {
     if (mTo == kAudioEncodingPcm8bit && mFrom == kAudioEncodingPcm16bit) {
         memcpy_to_u8_from_i16((uint8_t*)tgt->base(), (const int16_t*)src->data(), src->size() / 2);
     } else if (mTo == kAudioEncodingPcm8bit && mFrom == kAudioEncodingPcmFloat) {
diff --git a/media/libstagefright/DataSource.cpp b/media/libstagefright/DataSource.cpp
index 163a527..a5760d1 100644
--- a/media/libstagefright/DataSource.cpp
+++ b/media/libstagefright/DataSource.cpp
@@ -16,25 +16,11 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "DataSource"
 
-#include "include/AMRExtractor.h"
-
-#include "include/AACExtractor.h"
 #include "include/CallbackDataSource.h"
-#include "include/DRMExtractor.h"
-#include "include/FLACExtractor.h"
 #include "include/HTTPBase.h"
-#include "include/MidiExtractor.h"
-#include "include/MP3Extractor.h"
-#include "include/MPEG2PSExtractor.h"
-#include "include/MPEG2TSExtractor.h"
-#include "include/MPEG4Extractor.h"
 #include "include/NuCachedSource2.h"
-#include "include/OggExtractor.h"
-#include "include/WAVExtractor.h"
-#include "include/WVMExtractor.h"
 
-#include "matroska/MatroskaExtractor.h"
-
+#include <media/IDataSource.h>
 #include <media/IMediaHTTPConnection.h>
 #include <media/IMediaHTTPService.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -44,6 +30,8 @@
 #include <media/stagefright/FileSource.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaHTTP.h>
+#include <media/stagefright/RemoteDataSource.h>
+#include <media/stagefright/Utils.h>
 #include <utils/String8.h>
 
 #include <cutils/properties.h>
@@ -110,85 +98,12 @@
     return ERROR_UNSUPPORTED;
 }
 
+sp<IDataSource> DataSource::getIDataSource() const {
+    return nullptr;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 
-Mutex DataSource::gSnifferMutex;
-List<DataSource::SnifferFunc> DataSource::gSniffers;
-bool DataSource::gSniffersRegistered = false;
-
-bool DataSource::sniff(
-        String8 *mimeType, float *confidence, sp<AMessage> *meta) {
-    *mimeType = "";
-    *confidence = 0.0f;
-    meta->clear();
-
-    {
-        Mutex::Autolock autoLock(gSnifferMutex);
-        if (!gSniffersRegistered) {
-            return false;
-        }
-    }
-
-    for (List<SnifferFunc>::iterator it = gSniffers.begin();
-         it != gSniffers.end(); ++it) {
-        String8 newMimeType;
-        float newConfidence;
-        sp<AMessage> newMeta;
-        if ((*it)(this, &newMimeType, &newConfidence, &newMeta)) {
-            if (newConfidence > *confidence) {
-                *mimeType = newMimeType;
-                *confidence = newConfidence;
-                *meta = newMeta;
-            }
-        }
-    }
-
-    return *confidence > 0.0;
-}
-
-// static
-void DataSource::RegisterSniffer_l(SnifferFunc func) {
-    for (List<SnifferFunc>::iterator it = gSniffers.begin();
-         it != gSniffers.end(); ++it) {
-        if (*it == func) {
-            return;
-        }
-    }
-
-    gSniffers.push_back(func);
-}
-
-// static
-void DataSource::RegisterDefaultSniffers() {
-    Mutex::Autolock autoLock(gSnifferMutex);
-    if (gSniffersRegistered) {
-        return;
-    }
-
-    RegisterSniffer_l(SniffMPEG4);
-    RegisterSniffer_l(SniffMatroska);
-    RegisterSniffer_l(SniffOgg);
-    RegisterSniffer_l(SniffWAV);
-    RegisterSniffer_l(SniffFLAC);
-    RegisterSniffer_l(SniffAMR);
-    RegisterSniffer_l(SniffMPEG2TS);
-    RegisterSniffer_l(SniffMP3);
-    RegisterSniffer_l(SniffAAC);
-    RegisterSniffer_l(SniffMPEG2PS);
-    if (getuid() == AID_MEDIA) {
-        // WVM only in the media server process
-        RegisterSniffer_l(SniffWVM);
-    }
-    RegisterSniffer_l(SniffMidi);
-
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("drm.service.enabled", value, NULL)
-            && (!strcmp(value, "1") || !strcasecmp(value, "true"))) {
-        RegisterSniffer_l(SniffDRM);
-    }
-    gSniffersRegistered = true;
-}
-
 // static
 sp<DataSource> DataSource::CreateFromURI(
         const sp<IMediaHTTPService> &httpService,
@@ -200,14 +115,10 @@
         *contentType = "";
     }
 
-    bool isWidevine = !strncasecmp("widevine://", uri, 11);
-
     sp<DataSource> source;
     if (!strncasecmp("file://", uri, 7)) {
         source = new FileSource(uri + 7);
-    } else if (!strncasecmp("http://", uri, 7)
-            || !strncasecmp("https://", uri, 8)
-            || isWidevine) {
+    } else if (!strncasecmp("http://", uri, 7) || !strncasecmp("https://", uri, 8)) {
         if (httpService == NULL) {
             ALOGE("Invalid http service!");
             return NULL;
@@ -222,16 +133,8 @@
             httpSource = new MediaHTTP(conn);
         }
 
-        String8 tmp;
-        if (isWidevine) {
-            tmp = String8("http://");
-            tmp.append(uri + 11);
-
-            uri = tmp.string();
-        }
-
         String8 cacheConfig;
-        bool disconnectAtHighwatermark;
+        bool disconnectAtHighwatermark = false;
         KeyedVector<String8, String8> nonCacheSpecificHeaders;
         if (headers != NULL) {
             nonCacheSpecificHeaders = *headers;
@@ -246,20 +149,14 @@
             return NULL;
         }
 
-        if (!isWidevine) {
-            if (contentType != NULL) {
-                *contentType = httpSource->getMIMEType();
-            }
-
-            source = NuCachedSource2::Create(
-                    httpSource,
-                    cacheConfig.isEmpty() ? NULL : cacheConfig.string(),
-                    disconnectAtHighwatermark);
-        } else {
-            // We do not want that prefetching, caching, datasource wrapper
-            // in the widevine:// case.
-            source = httpSource;
+        if (contentType != NULL) {
+            *contentType = httpSource->getMIMEType();
         }
+
+        source = NuCachedSource2::Create(
+                httpSource,
+                cacheConfig.isEmpty() ? NULL : cacheConfig.string(),
+                disconnectAtHighwatermark);
     } else if (!strncasecmp("data:", uri, 5)) {
         source = DataURISource::Create(uri);
     } else {
@@ -274,6 +171,11 @@
     return source;
 }
 
+sp<DataSource> DataSource::CreateFromFd(int fd, int64_t offset, int64_t length) {
+    sp<FileSource> source = new FileSource(fd, offset, length);
+    return source->initCheck() != OK ? nullptr : source;
+}
+
 sp<DataSource> DataSource::CreateMediaHTTP(const sp<IMediaHTTPService> &httpService) {
     if (httpService == NULL) {
         return NULL;
@@ -295,4 +197,8 @@
     return String8("application/octet-stream");
 }
 
+sp<IDataSource> DataSource::asIDataSource() {
+    return RemoteDataSource::wrap(sp<DataSource>(this));
+}
+
 }  // namespace android
diff --git a/media/libstagefright/DataURISource.cpp b/media/libstagefright/DataURISource.cpp
index 2a61c3a..3dc345f 100644
--- a/media/libstagefright/DataURISource.cpp
+++ b/media/libstagefright/DataURISource.cpp
@@ -28,7 +28,7 @@
         return NULL;
     }
 
-    char *commaPos = strrchr(uri, ',');
+    const char *commaPos = strrchr(uri, ',');
 
     if (commaPos == NULL) {
         return NULL;
diff --git a/media/libstagefright/FLACExtractor.cpp b/media/libstagefright/FLACExtractor.cpp
index 543e0af..1b88e5d 100644
--- a/media/libstagefright/FLACExtractor.cpp
+++ b/media/libstagefright/FLACExtractor.cpp
@@ -77,7 +77,7 @@
         kMaxChannels = 8,
     };
 
-    FLACParser(
+    explicit FLACParser(
         const sp<DataSource> &dataSource,
         // If metadata pointers aren't provided, we don't fill them
         const sp<MetaData> &fileMetadata = 0,
diff --git a/media/libstagefright/FileSource.cpp b/media/libstagefright/FileSource.cpp
index 5b92f91..97d8988 100644
--- a/media/libstagefright/FileSource.cpp
+++ b/media/libstagefright/FileSource.cpp
@@ -21,6 +21,7 @@
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/FileSource.h>
 #include <media/stagefright/Utils.h>
+#include <private/android_filesystem_config.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <sys/types.h>
@@ -171,6 +172,7 @@
 }
 
 sp<DecryptHandle> FileSource::DrmInitialization(const char *mime) {
+    if (getuid() == AID_MEDIA_EX) return nullptr; // no DRM in media extractor
     if (mDrmManagerClient == NULL) {
         mDrmManagerClient = new DrmManagerClient();
     }
@@ -227,4 +229,18 @@
         return mDrmManagerClient->pread(mDecryptHandle, data, size, offset + mOffset);
     }
 }
+
+/* static */
+bool FileSource::requiresDrm(int fd, int64_t offset, int64_t length, const char *mime) {
+    std::unique_ptr<DrmManagerClient> drmClient(new DrmManagerClient());
+    sp<DecryptHandle> decryptHandle =
+            drmClient->openDecryptSession(fd, offset, length, mime);
+    bool requiresDrm = false;
+    if (decryptHandle != nullptr) {
+        requiresDrm = decryptHandle->decryptApiType == DecryptApiType::CONTAINER_BASED;
+        drmClient->closeDecryptSession(decryptHandle);
+    }
+    return requiresDrm;
+}
+
 }  // namespace android
diff --git a/media/libstagefright/MP3Extractor.cpp b/media/libstagefright/MP3Extractor.cpp
index 82e7a26..22df522 100644
--- a/media/libstagefright/MP3Extractor.cpp
+++ b/media/libstagefright/MP3Extractor.cpp
@@ -538,7 +538,7 @@
             buffer->release();
             buffer = NULL;
 
-            return ERROR_END_OF_STREAM;
+            return (n < 0 ? n : ERROR_END_OF_STREAM);
         }
 
         uint32_t header = U32_AT((const uint8_t *)buffer->data());
@@ -582,7 +582,7 @@
         buffer->release();
         buffer = NULL;
 
-        return ERROR_END_OF_STREAM;
+        return (n < 0 ? n : ERROR_END_OF_STREAM);
     }
 
     buffer->set_range(0, frame_size);
diff --git a/media/libstagefright/MPEG2TSWriter.cpp b/media/libstagefright/MPEG2TSWriter.cpp
index a9e8846..b83b0a0 100644
--- a/media/libstagefright/MPEG2TSWriter.cpp
+++ b/media/libstagefright/MPEG2TSWriter.cpp
@@ -35,9 +35,9 @@
 namespace android {
 
 struct MPEG2TSWriter::SourceInfo : public AHandler {
-    SourceInfo(const sp<IMediaSource> &source);
+    explicit SourceInfo(const sp<IMediaSource> &source);
 
-    void start(const sp<AMessage> &notify);
+    void start(const sp<AMessage> &notify, const sp<MetaData> &params);
     void stop();
 
     unsigned streamType() const;
@@ -75,7 +75,7 @@
 
     sp<ABuffer> mAACCodecSpecificData;
 
-    sp<ABuffer> mAACBuffer;
+    sp<ABuffer> mBuffer;
 
     sp<ABuffer> mLastAccessUnit;
     bool mEOSReceived;
@@ -85,10 +85,8 @@
 
     void extractCodecSpecificData();
 
-    bool appendAACFrames(MediaBuffer *buffer);
-    bool flushAACFrames();
-
-    void postAVCFrame(MediaBuffer *buffer);
+    void appendAACFrames(MediaBuffer *buffer);
+    void appendAVCFrame(MediaBuffer *buffer);
 
     DISALLOW_EVIL_CONSTRUCTORS(SourceInfo);
 };
@@ -129,13 +127,14 @@
     return mContinuityCounter;
 }
 
-void MPEG2TSWriter::SourceInfo::start(const sp<AMessage> &notify) {
+void MPEG2TSWriter::SourceInfo::start(const sp<AMessage> &notify, const sp<MetaData> &params) {
     mLooper->registerHandler(this);
     mLooper->start();
-
     mNotify = notify;
 
-    (new AMessage(kWhatStart, this))->post();
+    sp<AMessage> msg = new AMessage(kWhatStart, this);
+    msg->setObject("meta", params);
+    msg->post();
 }
 
 void MPEG2TSWriter::SourceInfo::stop() {
@@ -250,56 +249,51 @@
     notify->post();
 }
 
-void MPEG2TSWriter::SourceInfo::postAVCFrame(MediaBuffer *buffer) {
+void MPEG2TSWriter::SourceInfo::appendAVCFrame(MediaBuffer *buffer) {
     sp<AMessage> notify = mNotify->dup();
     notify->setInt32("what", kNotifyBuffer);
 
-    sp<ABuffer> copy =
-        new ABuffer(buffer->range_length());
-    memcpy(copy->data(),
+    if (mBuffer == NULL || buffer->range_length() > mBuffer->capacity()) {
+        mBuffer = new ABuffer(buffer->range_length());
+    }
+    mBuffer->setRange(0, 0);
+
+    memcpy(mBuffer->data(),
            (const uint8_t *)buffer->data()
             + buffer->range_offset(),
            buffer->range_length());
 
     int64_t timeUs;
     CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs));
-    copy->meta()->setInt64("timeUs", timeUs);
+    mBuffer->meta()->setInt64("timeUs", timeUs);
 
     int32_t isSync;
     if (buffer->meta_data()->findInt32(kKeyIsSyncFrame, &isSync)
             && isSync != 0) {
-        copy->meta()->setInt32("isSync", true);
+        mBuffer->meta()->setInt32("isSync", true);
     }
 
-    notify->setBuffer("buffer", copy);
+    mBuffer->setRange(0, buffer->range_length());
+
+    notify->setBuffer("buffer", mBuffer);
     notify->post();
 }
 
-bool MPEG2TSWriter::SourceInfo::appendAACFrames(MediaBuffer *buffer) {
-    bool accessUnitPosted = false;
+void MPEG2TSWriter::SourceInfo::appendAACFrames(MediaBuffer *buffer) {
+    sp<AMessage> notify = mNotify->dup();
+    notify->setInt32("what", kNotifyBuffer);
 
-    if (mAACBuffer != NULL
-            && mAACBuffer->size() + 7 + buffer->range_length()
-                    > mAACBuffer->capacity()) {
-        accessUnitPosted = flushAACFrames();
+    if (mBuffer == NULL || 7 + buffer->range_length() > mBuffer->capacity()) {
+        mBuffer = new ABuffer(7 + buffer->range_length());
     }
 
-    if (mAACBuffer == NULL) {
-        size_t alloc = 4096;
-        if (buffer->range_length() + 7 > alloc) {
-            alloc = 7 + buffer->range_length();
-        }
+    int64_t timeUs;
+    CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs));
 
-        mAACBuffer = new ABuffer(alloc);
+    mBuffer->meta()->setInt64("timeUs", timeUs);
+    mBuffer->meta()->setInt32("isSync", true);
 
-        int64_t timeUs;
-        CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs));
-
-        mAACBuffer->meta()->setInt64("timeUs", timeUs);
-        mAACBuffer->meta()->setInt32("isSync", true);
-
-        mAACBuffer->setRange(0, 0);
-    }
+    mBuffer->setRange(0, 0);
 
     const uint8_t *codec_specific_data = mAACCodecSpecificData->data();
 
@@ -312,7 +306,7 @@
     unsigned channel_configuration =
         (codec_specific_data[1] >> 3) & 0x0f;
 
-    uint8_t *ptr = mAACBuffer->data() + mAACBuffer->size();
+    uint8_t *ptr = mBuffer->data() + mBuffer->size();
 
     const uint32_t aac_frame_length = buffer->range_length() + 7;
 
@@ -340,24 +334,10 @@
 
     ptr += buffer->range_length();
 
-    mAACBuffer->setRange(0, ptr - mAACBuffer->data());
+    mBuffer->setRange(0, ptr - mBuffer->data());
 
-    return accessUnitPosted;
-}
-
-bool MPEG2TSWriter::SourceInfo::flushAACFrames() {
-    if (mAACBuffer == NULL) {
-        return false;
-    }
-
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", kNotifyBuffer);
-    notify->setBuffer("buffer", mAACBuffer);
+    notify->setBuffer("buffer", mBuffer);
     notify->post();
-
-    mAACBuffer.clear();
-
-    return true;
 }
 
 void MPEG2TSWriter::SourceInfo::readMore() {
@@ -368,7 +348,10 @@
     switch (msg->what()) {
         case kWhatStart:
         {
-            status_t err = mSource->start();
+            sp<RefBase> obj;
+            CHECK(msg->findObject("meta", &obj));
+            MetaData *params = static_cast<MetaData *>(obj.get());
+            status_t err = mSource->start(params);
             if (err != OK) {
                 sp<AMessage> notify = mNotify->dup();
                 notify->setInt32("what", kNotifyStartFailed);
@@ -376,6 +359,7 @@
                 break;
             }
 
+            // Extract CSD from config format.
             extractCodecSpecificData();
 
             readMore();
@@ -388,10 +372,6 @@
             status_t err = mSource->read(&buffer);
 
             if (err != OK && err != INFO_FORMAT_CHANGED) {
-                if (mStreamType == 0x0f) {
-                    flushAACFrames();
-                }
-
                 sp<AMessage> notify = mNotify->dup();
                 notify->setInt32("what", kNotifyReachedEOS);
                 notify->setInt32("status", err);
@@ -401,23 +381,20 @@
 
             if (err == OK) {
                 if (mStreamType == 0x0f && mAACCodecSpecificData == NULL) {
-                    // The first buffer contains codec specific data.
-
+                    // The first audio buffer must contain CSD if not received yet.
                     CHECK_GE(buffer->range_length(), 2u);
-
                     mAACCodecSpecificData = new ABuffer(buffer->range_length());
 
                     memcpy(mAACCodecSpecificData->data(),
                            (const uint8_t *)buffer->data()
                             + buffer->range_offset(),
                            buffer->range_length());
+                    readMore();
                 } else if (buffer->range_length() > 0) {
                     if (mStreamType == 0x0f) {
-                        if (!appendAACFrames(buffer)) {
-                            msg->post();
-                        }
+                        appendAACFrames(buffer);
                     } else {
-                        postAVCFrame(buffer);
+                        appendAVCFrame(buffer);
                     }
                 } else {
                     readMore();
@@ -452,7 +429,6 @@
 
     int64_t timeUs;
     CHECK(mLastAccessUnit->meta()->findInt64("timeUs", &timeUs));
-
     return timeUs;
 }
 
@@ -542,7 +518,7 @@
     return OK;
 }
 
-status_t MPEG2TSWriter::start(MetaData * /* param */) {
+status_t MPEG2TSWriter::start(MetaData *param ) {
     CHECK(!mStarted);
 
     mStarted = true;
@@ -556,7 +532,7 @@
 
         notify->setInt32("source-index", i);
 
-        mSources.editItemAt(i)->start(notify);
+        mSources.editItemAt(i)->start(notify, param);
     }
 
     return OK;
@@ -594,13 +570,13 @@
         {
             int32_t sourceIndex;
             CHECK(msg->findInt32("source-index", &sourceIndex));
+            sp<SourceInfo> source = mSources.editItemAt(sourceIndex);
 
             int32_t what;
             CHECK(msg->findInt32("what", &what));
 
             if (what == SourceInfo::kNotifyReachedEOS
                     || what == SourceInfo::kNotifyStartFailed) {
-                sp<SourceInfo> source = mSources.editItemAt(sourceIndex);
                 source->setEOSReceived();
 
                 sp<ABuffer> buffer = source->lastAccessUnit();
@@ -615,6 +591,7 @@
             } else if (what == SourceInfo::kNotifyBuffer) {
                 sp<ABuffer> buffer;
                 CHECK(msg->findBuffer("buffer", &buffer));
+                CHECK(source->lastAccessUnit() == NULL);
 
                 int32_t oob;
                 if (msg->findInt32("oob", &oob) && oob) {
@@ -635,15 +612,10 @@
                 // Rinse, repeat.
                 // If we don't have data on any track we don't write
                 // anything just yet.
-
-                sp<SourceInfo> source = mSources.editItemAt(sourceIndex);
-
-                CHECK(source->lastAccessUnit() == NULL);
                 source->setLastAccessUnit(buffer);
 
                 ALOGV("lastAccessUnitTimeUs[%d] = %.2f secs",
-                     sourceIndex, source->lastAccessUnitTimeUs() / 1E6);
-
+                    sourceIndex, source->lastAccessUnitTimeUs() / 1E6);
                 int64_t minTimeUs = -1;
                 size_t minIndex = 0;
 
@@ -665,15 +637,14 @@
                 }
 
                 if (minTimeUs < 0) {
-                    ALOGV("not a all tracks have valid data.");
+                    ALOGV("not all tracks have valid data.");
                     break;
                 }
 
                 ALOGV("writing access unit at time %.2f secs (index %zu)",
-                     minTimeUs / 1E6, minIndex);
+                    minTimeUs / 1E6, minIndex);
 
                 source = mSources.editItemAt(minIndex);
-
                 buffer = source->lastAccessUnit();
                 source->setLastAccessUnit(NULL);
 
diff --git a/media/libstagefright/MPEG4Extractor.cpp b/media/libstagefright/MPEG4Extractor.cpp
index 2037923..9c096e6 100644
--- a/media/libstagefright/MPEG4Extractor.cpp
+++ b/media/libstagefright/MPEG4Extractor.cpp
@@ -185,7 +185,7 @@
 // Each MPEG4DataSource caches the sampletable metadata for a single track.
 
 struct MPEG4DataSource : public DataSource {
-    MPEG4DataSource(const sp<DataSource> &source);
+    explicit MPEG4DataSource(const sp<DataSource> &source);
 
     virtual status_t initCheck() const;
     virtual ssize_t readAt(off64_t offset, void *data, size_t size);
@@ -603,7 +603,7 @@
 
 // Reads an encoded integer 7 bits at a time until it encounters the high bit clear.
 static int32_t readSize(off64_t offset,
-        const sp<DataSource> DataSource, uint8_t *numOfBytes) {
+        const sp<DataSource> &DataSource, uint8_t *numOfBytes) {
     uint32_t size = 0;
     uint8_t data;
     bool moreData = true;
@@ -816,6 +816,10 @@
         ALOGE("b/23540914");
         return ERROR_MALFORMED;
     }
+    if (depth > 100) {
+        ALOGE("b/27456299");
+        return ERROR_MALFORMED;
+    }
     uint32_t hdr[2];
     if (mDataSource->readAt(*offset, hdr, 8) < 8) {
         return ERROR_IO;
@@ -1031,7 +1035,9 @@
                         while (cur && cur->next != mLastTrack) {
                             cur = cur->next;
                         }
-                        cur->next = NULL;
+                        if (cur) {
+                            cur->next = NULL;
+                        }
                         delete mLastTrack;
                         mLastTrack = cur;
                     }
@@ -1397,6 +1403,28 @@
             }
             break;
         }
+        case FOURCC('m', 'e', 't', 't'):
+        {
+            *offset += chunk_size;
+
+            if (mLastTrack == NULL)
+                return ERROR_MALFORMED;
+
+            sp<ABuffer> buffer = new ABuffer(chunk_data_size);
+            if (buffer->data() == NULL) {
+                return NO_MEMORY;
+            }
+
+            if (mDataSource->readAt(
+                        data_offset, buffer->data(), chunk_data_size) < chunk_data_size) {
+                return ERROR_IO;
+            }
+
+            String8 mimeFormat((const char *)(buffer->data()), chunk_data_size);
+            mLastTrack->meta->setCString(kKeyMIMEType, mimeFormat.string());
+
+            break;
+        }
 
         case FOURCC('m', 'p', '4', 'a'):
         case FOURCC('e', 'n', 'c', 'a'):
@@ -2325,6 +2353,12 @@
             return UNKNOWN_ERROR; // stop parsing after sidx
         }
 
+        case FOURCC('a', 'c', '-', '3'):
+        {
+            *offset += chunk_size;
+            return parseAC3SampleEntry(data_offset);
+        }
+
         case FOURCC('f', 't', 'y', 'p'):
         {
             if (chunk_data_size < 8 || depth != 0) {
@@ -2376,6 +2410,99 @@
     return OK;
 }
 
+status_t MPEG4Extractor::parseAC3SampleEntry(off64_t offset) {
+    // skip 16 bytes:
+    //  + 6-byte reserved,
+    //  + 2-byte data reference index,
+    //  + 8-byte reserved
+    offset += 16;
+    uint16_t channelCount;
+    if (!mDataSource->getUInt16(offset, &channelCount)) {
+        return ERROR_MALFORMED;
+    }
+    // skip 8 bytes:
+    //  + 2-byte channelCount,
+    //  + 2-byte sample size,
+    //  + 4-byte reserved
+    offset += 8;
+    uint16_t sampleRate;
+    if (!mDataSource->getUInt16(offset, &sampleRate)) {
+        ALOGE("MPEG4Extractor: error while reading ac-3 block: cannot read sample rate");
+        return ERROR_MALFORMED;
+    }
+
+    // skip 4 bytes:
+    //  + 2-byte sampleRate,
+    //  + 2-byte reserved
+    offset += 4;
+    return parseAC3SpecificBox(offset, sampleRate);
+}
+
+status_t MPEG4Extractor::parseAC3SpecificBox(
+        off64_t offset, uint16_t sampleRate) {
+    uint32_t size;
+    // + 4-byte size
+    // + 4-byte type
+    // + 3-byte payload
+    const uint32_t kAC3SpecificBoxSize = 11;
+    if (!mDataSource->getUInt32(offset, &size) || size < kAC3SpecificBoxSize) {
+        ALOGE("MPEG4Extractor: error while reading ac-3 block: cannot read specific box size");
+        return ERROR_MALFORMED;
+    }
+
+    offset += 4;
+    uint32_t type;
+    if (!mDataSource->getUInt32(offset, &type) || type != FOURCC('d', 'a', 'c', '3')) {
+        ALOGE("MPEG4Extractor: error while reading ac-3 specific block: header not dac3");
+        return ERROR_MALFORMED;
+    }
+
+    offset += 4;
+    const uint32_t kAC3SpecificBoxPayloadSize = 3;
+    uint8_t chunk[kAC3SpecificBoxPayloadSize];
+    if (mDataSource->readAt(offset, chunk, sizeof(chunk)) != sizeof(chunk)) {
+        ALOGE("MPEG4Extractor: error while reading ac-3 specific block: bitstream fields");
+        return ERROR_MALFORMED;
+    }
+
+    ABitReader br(chunk, sizeof(chunk));
+    static const unsigned channelCountTable[] = {2, 1, 2, 3, 3, 4, 4, 5};
+    static const unsigned sampleRateTable[] = {48000, 44100, 32000};
+
+    unsigned fscod = br.getBits(2);
+    if (fscod == 3) {
+        ALOGE("Incorrect fscod (3) in AC3 header");
+        return ERROR_MALFORMED;
+    }
+    unsigned boxSampleRate = sampleRateTable[fscod];
+    if (boxSampleRate != sampleRate) {
+        ALOGE("sample rate mismatch: boxSampleRate = %d, sampleRate = %d",
+            boxSampleRate, sampleRate);
+        return ERROR_MALFORMED;
+    }
+
+    unsigned bsid = br.getBits(5);
+    if (bsid > 8) {
+        ALOGW("Incorrect bsid in AC3 header. Possibly E-AC-3?");
+        return ERROR_MALFORMED;
+    }
+
+    // skip
+    unsigned bsmod __unused = br.getBits(3);
+
+    unsigned acmod = br.getBits(3);
+    unsigned lfeon = br.getBits(1);
+    unsigned channelCount = channelCountTable[acmod] + lfeon;
+
+    if (mLastTrack == NULL) {
+        return ERROR_MALFORMED;
+    }
+    mLastTrack->meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
+    mLastTrack->meta->setInt32(kKeyChannelCount, channelCount);
+    mLastTrack->meta->setInt32(kKeySampleRate, sampleRate);
+    return OK;
+}
+
 status_t MPEG4Extractor::parseSegmentIndex(off64_t offset, size_t size) {
   ALOGV("MPEG4Extractor::parseSegmentIndex");
 
@@ -2704,6 +2831,10 @@
 }
 
 status_t MPEG4Extractor::parseITunesMetaData(off64_t offset, size_t size) {
+    if (size == 0) {
+        return OK;
+    }
+
     if (size < 4 || size == SIZE_MAX) {
         return ERROR_MALFORMED;
     }
@@ -3946,7 +4077,12 @@
         return OK;
     }
     if (smplcnt > mCurrentSampleInfoAllocSize) {
-        mCurrentSampleInfoSizes = (uint8_t*) realloc(mCurrentSampleInfoSizes, smplcnt);
+        uint8_t * newPtr =  (uint8_t*) realloc(mCurrentSampleInfoSizes, smplcnt);
+        if (newPtr == NULL) {
+            ALOGE("failed to realloc %u -> %u", mCurrentSampleInfoAllocSize, smplcnt);
+            return NO_MEMORY;
+        }
+        mCurrentSampleInfoSizes = newPtr;
         mCurrentSampleInfoAllocSize = smplcnt;
     }
 
@@ -3985,6 +4121,7 @@
     if (entrycount > mCurrentSampleInfoOffsetsAllocSize) {
         uint64_t *newPtr = (uint64_t *)realloc(mCurrentSampleInfoOffsets, entrycount * 8);
         if (newPtr == NULL) {
+            ALOGE("failed to realloc %u -> %u", mCurrentSampleInfoOffsetsAllocSize, entrycount * 8);
             return NO_MEMORY;
         }
         mCurrentSampleInfoOffsets = newPtr;
@@ -4463,8 +4600,8 @@
         // fall through
     }
 
-    off64_t offset;
-    size_t size;
+    off64_t offset = 0;
+    size_t size = 0;
     uint32_t cts, stts;
     bool isSyncSample;
     bool newBuffer = false;
@@ -5029,6 +5166,10 @@
     return NULL;
 }
 
+void MPEG4Extractor::populateMetrics() {
+    ALOGV("MPEG4Extractor::populateMetrics");
+}
+
 static bool LegacySniffMPEG4(
         const sp<DataSource> &source, String8 *mimeType, float *confidence) {
     uint8_t header[8];
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
old mode 100644
new mode 100755
index 5e96c2b..4f18a26
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -69,15 +69,20 @@
 static const uint8_t kNalUnitTypeSeqParamSet = 0x07;
 static const uint8_t kNalUnitTypePicParamSet = 0x08;
 static const int64_t kInitialDelayTimeUs     = 700000LL;
+static const int64_t kMaxMetadataSize = 0x4000000LL;   // 64MB max per-frame metadata size
 
 static const char kMetaKey_Version[]    = "com.android.version";
-#ifdef SHOW_MODEL_BUILD
+static const char kMetaKey_Manufacturer[]      = "com.android.manufacturer";
 static const char kMetaKey_Model[]      = "com.android.model";
+
+#ifdef SHOW_BUILD
 static const char kMetaKey_Build[]      = "com.android.build";
 #endif
 static const char kMetaKey_CaptureFps[] = "com.android.capture.fps";
 static const char kMetaKey_TemporalLayerCount[] = "com.android.video.temporal_layers_count";
 
+static const int kTimestampDebugCount = 10;
+
 static const uint8_t kMandatoryHevcNalUnitTypes[3] = {
     kHevcNalUnitTypeVps,
     kHevcNalUnitTypeSps,
@@ -90,7 +95,7 @@
     kHevcNalUnitTypePrefixSei,
     kHevcNalUnitTypeSuffixSei,
 };
-/* uncomment to include model and build in meta */
+/* uncomment to include build in meta */
 //#define SHOW_MODEL_BUILD 1
 
 class MPEG4Writer::Track {
@@ -100,7 +105,7 @@
     ~Track();
 
     status_t start(MetaData *params);
-    status_t stop();
+    status_t stop(bool stopSource = true);
     status_t pause();
     bool reachedEOS();
 
@@ -116,6 +121,8 @@
     int32_t getTrackId() const { return mTrackId; }
     status_t dump(int fd, const Vector<String16>& args) const;
     static const char *getFourCCForMime(const char *mime);
+    const char *getTrackType() const;
+    void resetInternal();
 
 private:
     enum {
@@ -271,7 +278,9 @@
     bool mIsAvc;
     bool mIsHevc;
     bool mIsAudio;
+    bool mIsVideo;
     bool mIsMPEG4;
+    bool mGotStartKeyFrame;
     bool mIsMalformed;
     int32_t mTrackId;
     int64_t mTrackDurationUs;
@@ -300,6 +309,9 @@
     int64_t mMinCttsOffsetTimeUs;
     int64_t mMaxCttsOffsetTimeUs;
 
+    // Save the last 10 frames' timestamp for debug.
+    std::list<std::pair<int64_t, int64_t>> mTimestampDebugHelper;
+
     // Sequence parameter set or picture parameter set
     struct AVCParamSet {
         AVCParamSet(uint16_t length, const uint8_t *data)
@@ -329,6 +341,8 @@
     // Update the audio track's drift information.
     void updateDriftTime(const sp<MetaData>& meta);
 
+    void dumpTimeStamps();
+
     int32_t getStartTimeOffsetScaledTime() const;
 
     static void *ThreadWrapper(void *me);
@@ -393,6 +407,7 @@
     void writeMdhdBox(uint32_t now);
     void writeSmhdBox();
     void writeVmhdBox();
+    void writeNmhdBox();
     void writeHdlrBox();
     void writeTkhdBox(uint32_t now);
     void writeColrBox();
@@ -400,47 +415,15 @@
     void writeMp4vEsdsBox();
     void writeAudioFourCCBox();
     void writeVideoFourCCBox();
+    void writeMetadataFourCCBox();
     void writeStblBox(bool use32BitOffset);
 
     Track(const Track &);
     Track &operator=(const Track &);
 };
 
-MPEG4Writer::MPEG4Writer(int fd)
-    : mFd(dup(fd)),
-      mInitCheck(mFd < 0? NO_INIT: OK),
-      mIsRealTimeRecording(true),
-      mUse4ByteNalLength(true),
-      mUse32BitOffset(true),
-      mIsFileSizeLimitExplicitlyRequested(false),
-      mPaused(false),
-      mStarted(false),
-      mWriterThreadStarted(false),
-      mOffset(0),
-      mMdatOffset(0),
-      mMoovBoxBuffer(NULL),
-      mMoovBoxBufferOffset(0),
-      mWriteMoovBoxToMemory(false),
-      mFreeBoxOffset(0),
-      mStreamableFile(false),
-      mEstimatedMoovBoxSize(0),
-      mMoovExtraSize(0),
-      mInterleaveDurationUs(1000000),
-      mTimeScale(-1),
-      mStartTimestampUs(-1ll),
-      mLatitudex10000(0),
-      mLongitudex10000(0),
-      mAreGeoTagsAvailable(false),
-      mStartTimeOffsetMs(-1),
-      mMetaKeys(new AMessage()) {
-    addDeviceMeta();
-
-    // Verify mFd is seekable
-    off64_t off = lseek64(mFd, 0, SEEK_SET);
-    if (off < 0) {
-        ALOGE("cannot seek mFd: %s (%d)", strerror(errno), errno);
-        release();
-    }
+MPEG4Writer::MPEG4Writer(int fd) {
+    initInternal(fd);
 }
 
 MPEG4Writer::~MPEG4Writer() {
@@ -453,6 +436,54 @@
         mTracks.erase(it);
     }
     mTracks.clear();
+
+    if (mNextFd != -1) {
+        close(mNextFd);
+    }
+}
+
+void MPEG4Writer::initInternal(int fd) {
+    ALOGV("initInternal");
+    mFd = dup(fd);
+    mNextFd = -1;
+    mInitCheck = mFd < 0? NO_INIT: OK;
+    mIsRealTimeRecording = true;
+    mUse4ByteNalLength = true;
+    mUse32BitOffset = true;
+    mIsFileSizeLimitExplicitlyRequested = false;
+    mPaused = false;
+    mStarted = false;
+    mWriterThreadStarted = false;
+    mSendNotify = false;
+    mOffset = 0;
+    mMdatOffset = 0;
+    mMoovBoxBuffer = NULL;
+    mMoovBoxBufferOffset = 0;
+    mWriteMoovBoxToMemory = false;
+    mFreeBoxOffset = 0;
+    mStreamableFile = false;
+    mEstimatedMoovBoxSize = 0;
+    mMoovExtraSize = 0;
+    mInterleaveDurationUs = 1000000;
+    mTimeScale = -1;
+    mStartTimestampUs = -1ll;
+    mLatitudex10000 = 0;
+    mLongitudex10000 = 0;
+    mAreGeoTagsAvailable = false;
+    mStartTimeOffsetMs = -1;
+    mSwitchPending = false;
+    mMetaKeys = new AMessage();
+    addDeviceMeta();
+    // Verify mFd is seekable
+    off64_t off = lseek64(mFd, 0, SEEK_SET);
+    if (off < 0) {
+        ALOGE("cannot seek mFd: %s (%d) %lld", strerror(errno), errno, (long long)mFd);
+        release();
+    }
+    for (List<Track *>::iterator it = mTracks.begin();
+         it != mTracks.end(); ++it) {
+        (*it)->resetInternal();
+    }
 }
 
 status_t MPEG4Writer::dump(
@@ -477,7 +508,7 @@
     const size_t SIZE = 256;
     char buffer[SIZE];
     String8 result;
-    snprintf(buffer, SIZE, "     %s track\n", mIsAudio? "Audio": "Video");
+    snprintf(buffer, SIZE, "     %s track\n", getTrackType());
     result.append(buffer);
     snprintf(buffer, SIZE, "       reached EOS: %s\n",
             mReachedEOS? "true": "false");
@@ -513,8 +544,10 @@
         } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_HEVC, mime)) {
             return "hvc1";
         }
+    } else if (!strncasecmp(mime, "application/", 12)) {
+        return "mett";
     } else {
-        ALOGE("Track (%s) other than video or audio is not supported", mime);
+        ALOGE("Track (%s) other than video/audio/metadata is not supported", mime);
     }
     return NULL;
 }
@@ -526,37 +559,17 @@
         return UNKNOWN_ERROR;
     }
 
-    // At most 2 tracks can be supported.
-    if (mTracks.size() >= 2) {
-        ALOGE("Too many tracks (%zu) to add", mTracks.size());
-        return ERROR_UNSUPPORTED;
-    }
-
     CHECK(source.get() != NULL);
 
     const char *mime;
     source->getFormat()->findCString(kKeyMIMEType, &mime);
-    bool isAudio = !strncasecmp(mime, "audio/", 6);
+
     if (Track::getFourCCForMime(mime) == NULL) {
         ALOGE("Unsupported mime '%s'", mime);
         return ERROR_UNSUPPORTED;
     }
 
-    // At this point, we know the track to be added is either
-    // video or audio. Thus, we only need to check whether it
-    // is an audio track or not (if it is not, then it must be
-    // a video track).
-
-    // No more than one video or one audio track is supported.
-    for (List<Track*>::iterator it = mTracks.begin();
-         it != mTracks.end(); ++it) {
-        if ((*it)->isAudio() == isAudio) {
-            ALOGE("%s track already exists", isAudio? "Audio": "Video");
-            return ERROR_UNSUPPORTED;
-        }
-    }
-
-    // This is the first track of either audio or video.
+    // This is a metadata track or the first track of either audio or video
     // Go ahead to add the track.
     Track *track = new Track(this, source, 1 + mTracks.size());
     mTracks.push_back(track);
@@ -600,12 +613,20 @@
         mMetaKeys->setString(kMetaKey_Version, val, n + 1);
         mMoovExtraSize += sizeof(kMetaKey_Version) + n + 32;
     }
-#ifdef SHOW_MODEL_BUILD
-    if (property_get("ro.product.model", val, NULL)
-            && (n = strlen(val)) > 0) {
-        mMetaKeys->setString(kMetaKey_Model, val, n + 1);
-        mMoovExtraSize += sizeof(kMetaKey_Model) + n + 32;
+
+    if (property_get_bool("media.recorder.show_manufacturer_and_model", false)) {
+        if (property_get("ro.product.manufacturer", val, NULL)
+                && (n = strlen(val)) > 0) {
+            mMetaKeys->setString(kMetaKey_Manufacturer, val, n + 1);
+            mMoovExtraSize += sizeof(kMetaKey_Manufacturer) + n + 32;
+        }
+        if (property_get("ro.product.model", val, NULL)
+                && (n = strlen(val)) > 0) {
+            mMetaKeys->setString(kMetaKey_Model, val, n + 1);
+            mMoovExtraSize += sizeof(kMetaKey_Model) + n + 32;
+        }
     }
+#ifdef SHOW_MODEL_BUILD
     if (property_get("ro.build.display.id", val, NULL)
             && (n = strlen(val)) > 0) {
         mMetaKeys->setString(kMetaKey_Build, val, n + 1);
@@ -643,7 +664,7 @@
     if (mMaxFileDurationLimitUs != 0) {
         if (bitRate > 0) {
             int64_t size2 =
-                ((mMaxFileDurationLimitUs * bitRate * 6) / 1000 / 8000000);
+                ((mMaxFileDurationLimitUs / 1000) * bitRate * 6) / 8000000;
             if (mMaxFileSizeLimitBytes != 0 && mIsFileSizeLimitExplicitlyRequested) {
                 // When both file size and duration limits are set,
                 // we use the smaller limit of the two.
@@ -680,6 +701,7 @@
     if (mInitCheck != OK) {
         return UNKNOWN_ERROR;
     }
+    mStartMeta = param;
 
     /*
      * Check mMaxFileSizeLimitBytes at the beginning
@@ -937,7 +959,30 @@
     mMoovBoxBuffer = NULL;
 }
 
-status_t MPEG4Writer::reset() {
+void MPEG4Writer::finishCurrentSession() {
+    reset(false /* stopSource */);
+}
+
+status_t MPEG4Writer::switchFd() {
+    ALOGV("switchFd");
+    Mutex::Autolock l(mLock);
+    if (mSwitchPending) {
+        return OK;
+    }
+
+    if (mNextFd == -1) {
+        ALOGW("No FileDescripter for next recording");
+        return INVALID_OPERATION;
+    }
+
+    mSwitchPending = true;
+    sp<AMessage> msg = new AMessage(kWhatSwitch, mReflector);
+    status_t err = msg->post();
+
+    return err;
+}
+
+status_t MPEG4Writer::reset(bool stopSource) {
     if (mInitCheck != OK) {
         return OK;
     } else {
@@ -956,7 +1001,7 @@
     int64_t minDurationUs = 0x7fffffffffffffffLL;
     for (List<Track *>::iterator it = mTracks.begin();
          it != mTracks.end(); ++it) {
-        status_t status = (*it)->stop();
+        status_t status = (*it)->stop(stopSource);
         if (err == OK && status != OK) {
             err = status;
         }
@@ -1123,9 +1168,7 @@
 
     // Test mode is enabled only if rw.media.record.test system
     // property is enabled.
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("rw.media.record.test", value, NULL) &&
-        (!strcasecmp(value, "true") || !strcasecmp(value, "1"))) {
+    if (property_get_bool("rw.media.record.test", false)) {
         return true;
     }
     return false;
@@ -1448,6 +1491,18 @@
     return OK;
 }
 
+void MPEG4Writer::notifyApproachingLimit() {
+    Mutex::Autolock autolock(mLock);
+    // Only notify once.
+    if (mSendNotify) {
+        return;
+    }
+    ALOGW("Recorded file size is approaching limit %" PRId64 "bytes",
+        mMaxFileSizeLimitBytes);
+    notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING, 0);
+    mSendNotify = true;
+}
+
 void MPEG4Writer::write(const void *data, size_t size) {
     write(data, 1, size);
 }
@@ -1461,7 +1516,6 @@
     if (mMaxFileSizeLimitBytes == 0) {
         return false;
     }
-
     int64_t nTotalBytesEstimate = static_cast<int64_t>(mEstimatedMoovBoxSize);
     for (List<Track *>::iterator it = mTracks.begin();
          it != mTracks.end(); ++it) {
@@ -1472,12 +1526,33 @@
         // Add 1024 bytes as error tolerance
         return nTotalBytesEstimate + 1024 >= mMaxFileSizeLimitBytes;
     }
+
     // Be conservative in the estimate: do not exceed 95% of
     // the target file limit. For small target file size limit, though,
     // this will not help.
     return (nTotalBytesEstimate >= (95 * mMaxFileSizeLimitBytes) / 100);
 }
 
+bool MPEG4Writer::approachingFileSizeLimit() {
+    // No limit
+    if (mMaxFileSizeLimitBytes == 0) {
+        return false;
+    }
+
+    int64_t nTotalBytesEstimate = static_cast<int64_t>(mEstimatedMoovBoxSize);
+    for (List<Track *>::iterator it = mTracks.begin();
+         it != mTracks.end(); ++it) {
+        nTotalBytesEstimate += (*it)->getEstimatedTrackSizeBytes();
+    }
+
+    if (!mStreamableFile) {
+        // Add 1024 bytes as error tolerance
+        return nTotalBytesEstimate + 1024 >= (90 * mMaxFileSizeLimitBytes) / 100;
+    }
+
+    return (nTotalBytesEstimate >= (90 * mMaxFileSizeLimitBytes) / 100);
+}
+
 bool MPEG4Writer::exceedsFileDurationLimit() {
     // No limit
     if (mMaxFileDurationLimitUs == 0) {
@@ -1537,6 +1612,7 @@
       mPaused(false),
       mResumed(false),
       mStarted(false),
+      mGotStartKeyFrame(false),
       mIsMalformed(false),
       mTrackId(trackId),
       mTrackDurationUs(0),
@@ -1561,11 +1637,12 @@
     mIsAvc = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC);
     mIsHevc = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_HEVC);
     mIsAudio = !strncasecmp(mime, "audio/", 6);
+    mIsVideo = !strncasecmp(mime, "video/", 6);
     mIsMPEG4 = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG4) ||
                !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC);
 
     // store temporal layer count
-    if (!mIsAudio) {
+    if (mIsVideo) {
         int32_t count;
         if (mMeta->findInt32(kKeyTemporalLayerCount, &count) && count > 1) {
             mOwner->setTemporalLayerCount(count);
@@ -1575,6 +1652,50 @@
     setTimeScale();
 }
 
+// Clear all the internal states except the CSD data.
+void MPEG4Writer::Track::resetInternal() {
+      mDone = false;
+      mPaused = false;
+      mResumed = false;
+      mStarted = false;
+      mGotStartKeyFrame = false;
+      mIsMalformed = false;
+      mTrackDurationUs = 0;
+      mEstimatedTrackSizeBytes = 0;
+      mSamplesHaveSameSize = 0;
+      if (mStszTableEntries != NULL) {
+         delete mStszTableEntries;
+         mStszTableEntries = new ListTableEntries<uint32_t, 1>(1000);
+      }
+
+      if (mStcoTableEntries != NULL) {
+         delete mStcoTableEntries;
+         mStcoTableEntries = new ListTableEntries<uint32_t, 1>(1000);
+      }
+      if (mCo64TableEntries != NULL) {
+         delete mCo64TableEntries;
+         mCo64TableEntries = new ListTableEntries<off64_t, 1>(1000);
+      }
+
+      if (mStscTableEntries != NULL) {
+         delete mStscTableEntries;
+         mStscTableEntries = new ListTableEntries<uint32_t, 3>(1000);
+      }
+      if (mStssTableEntries != NULL) {
+         delete mStssTableEntries;
+         mStssTableEntries = new ListTableEntries<uint32_t, 1>(1000);
+      }
+      if (mSttsTableEntries != NULL) {
+         delete mSttsTableEntries;
+         mSttsTableEntries = new ListTableEntries<uint32_t, 2>(1000);
+      }
+      if (mCttsTableEntries != NULL) {
+         delete mCttsTableEntries;
+         mCttsTableEntries = new ListTableEntries<uint32_t, 2>(1000);
+      }
+      mReachedEOS = false;
+}
+
 void MPEG4Writer::Track::updateTrackSizeEstimate() {
 
     uint32_t stcoBoxCount = (mOwner->use32BitFileOffset()
@@ -1621,13 +1742,31 @@
 void MPEG4Writer::Track::addOneCttsTableEntry(
         size_t sampleCount, int32_t duration) {
 
-    if (mIsAudio) {
+    if (!mIsVideo) {
         return;
     }
     mCttsTableEntries->add(htonl(sampleCount));
     mCttsTableEntries->add(htonl(duration));
 }
 
+status_t MPEG4Writer::setNextFd(int fd) {
+    ALOGV("addNextFd");
+    Mutex::Autolock l(mLock);
+    if (mLooper == NULL) {
+        mReflector = new AHandlerReflector<MPEG4Writer>(this);
+        mLooper = new ALooper;
+        mLooper->registerHandler(mReflector);
+        mLooper->start();
+    }
+
+    if (mNextFd != -1) {
+        // No need to set a new FD yet.
+        return INVALID_OPERATION;
+    }
+    mNextFd = fd;
+    return OK;
+}
+
 void MPEG4Writer::Track::addChunkOffset(off64_t offset) {
     if (mOwner->use32BitFileOffset()) {
         uint32_t value = offset;
@@ -1659,8 +1798,29 @@
     CHECK_GT(mTimeScale, 0);
 }
 
+void MPEG4Writer::onMessageReceived(const sp<AMessage> &msg) {
+    switch (msg->what()) {
+        case kWhatSwitch:
+        {
+            finishCurrentSession();
+            mLock.lock();
+            int fd = mNextFd;
+            mNextFd = -1;
+            mLock.unlock();
+            initInternal(fd);
+            start(mStartMeta.get());
+            mSwitchPending = false;
+            notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED, 0);
+            break;
+        }
+        default:
+        TRESPASS();
+    }
+}
+
 void MPEG4Writer::Track::getCodecSpecificDataFromInputFormatIfPossible() {
     const char *mime;
+
     CHECK(mMeta->findCString(kKeyMIMEType, &mime));
 
     uint32_t type;
@@ -1753,7 +1913,7 @@
 
 void MPEG4Writer::writeChunkToFile(Chunk* chunk) {
     ALOGV("writeChunkToFile: %" PRId64 " from %s track",
-        chunk->mTimeStampUs, chunk->mTrack->isAudio()? "audio": "video");
+        chunk->mTimeStampUs, chunk->mTrack->getTrackType());
 
     int32_t isFirstSample = true;
     while (!chunk->mSamples.empty()) {
@@ -1906,7 +2066,7 @@
     mStartTimeRealUs = startTimeUs;
 
     int32_t rotationDegrees;
-    if (!mIsAudio && params && params->findInt32(kKeyRotation, &rotationDegrees)) {
+    if (mIsVideo && params && params->findInt32(kKeyRotation, &rotationDegrees)) {
         mRotation = rotationDegrees;
     }
 
@@ -1963,8 +2123,8 @@
     return OK;
 }
 
-status_t MPEG4Writer::Track::stop() {
-    ALOGD("%s track stopping", mIsAudio? "Audio": "Video");
+status_t MPEG4Writer::Track::stop(bool stopSource) {
+    ALOGD("%s track stopping. %s source", getTrackType(), stopSource ? "Stop" : "Not Stop");
     if (!mStarted) {
         ALOGE("Stop() called but track is not started");
         return ERROR_END_OF_STREAM;
@@ -1974,16 +2134,17 @@
         return OK;
     }
     mDone = true;
-
-    ALOGD("%s track source stopping", mIsAudio? "Audio": "Video");
-    mSource->stop();
-    ALOGD("%s track source stopped", mIsAudio? "Audio": "Video");
+    if (stopSource) {
+        ALOGD("%s track source stopping", getTrackType());
+        mSource->stop();
+        ALOGD("%s track source stopped", getTrackType());
+    }
 
     void *dummy;
     pthread_join(mThread, &dummy);
     status_t err = static_cast<status_t>(reinterpret_cast<uintptr_t>(dummy));
 
-    ALOGD("%s track stopped", mIsAudio? "Audio": "Video");
+    ALOGD("%s track stopped. %s source", getTrackType(), stopSource ? "Stop" : "Not Stop");
     return err;
 }
 
@@ -2357,6 +2518,17 @@
     }
 }
 
+void MPEG4Writer::Track::dumpTimeStamps() {
+    ALOGE("Dumping %s track's last 10 frames timestamp ", getTrackType());
+    std::string timeStampString;
+    for (std::list<std::pair<int64_t, int64_t>>::iterator num = mTimestampDebugHelper.begin();
+            num != mTimestampDebugHelper.end(); ++num) {
+        timeStampString += "(" + std::to_string(num->first)+
+                "us, " + std::to_string(num->second) + "us) ";
+    }
+    ALOGE("%s", timeStampString.c_str());
+}
+
 status_t MPEG4Writer::Track::threadEntry() {
     int32_t count = 0;
     const int64_t interleaveDurationUs = mOwner->interleaveDuration();
@@ -2381,8 +2553,10 @@
 
     if (mIsAudio) {
         prctl(PR_SET_NAME, (unsigned long)"AudioTrackEncoding", 0, 0, 0);
-    } else {
+    } else if (mIsVideo) {
         prctl(PR_SET_NAME, (unsigned long)"VideoTrackEncoding", 0, 0, 0);
+    } else {
+        prctl(PR_SET_NAME, (unsigned long)"MetadataTrackEncoding", 0, 0, 0);
     }
 
     if (mOwner->isRealTimeRecording()) {
@@ -2393,7 +2567,7 @@
 
     status_t err = OK;
     MediaBuffer *buffer;
-    const char *trackName = mIsAudio ? "Audio" : "Video";
+    const char *trackName = getTrackType();
     while (!mDone && (err = mSource->read(&buffer)) == OK) {
         if (buffer->range_length() == 0) {
             buffer->release();
@@ -2424,19 +2598,17 @@
                 ALOGI("ignoring additional CSD for video track after first frame");
             } else {
                 mMeta = mSource->getFormat(); // get output format after format change
-
+                status_t err;
                 if (mIsAvc) {
-                    status_t err = makeAVCCodecSpecificData(
+                    err = makeAVCCodecSpecificData(
                             (const uint8_t *)buffer->data()
                                 + buffer->range_offset(),
                             buffer->range_length());
-                    CHECK_EQ((status_t)OK, err);
                 } else if (mIsHevc) {
-                    status_t err = makeHEVCCodecSpecificData(
+                    err = makeHEVCCodecSpecificData(
                             (const uint8_t *)buffer->data()
                                 + buffer->range_offset(),
                             buffer->range_length());
-                    CHECK_EQ((status_t)OK, err);
                 } else if (mIsMPEG4) {
                     copyCodecSpecificData((const uint8_t *)buffer->data() + buffer->range_offset(),
                             buffer->range_length());
@@ -2445,11 +2617,27 @@
 
             buffer->release();
             buffer = NULL;
+            if (OK != err) {
+                mSource->stop();
+                mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_ERROR,
+                       mTrackId | MEDIA_RECORDER_TRACK_ERROR_GENERAL, err);
+                break;
+            }
 
             mGotAllCodecSpecificData = true;
             continue;
         }
 
+        // Per-frame metadata sample's size must be smaller than max allowed.
+        if (!mIsVideo && !mIsAudio && buffer->range_length() >= kMaxMetadataSize) {
+            ALOGW("Buffer size is %zu. Maximum metadata buffer size is %lld for %s track",
+                    buffer->range_length(), (long long)kMaxMetadataSize, trackName);
+            buffer->release();
+            mSource->stop();
+            mIsMalformed = true;
+            break;
+        }
+
         ++nActualFrames;
 
         // Make a deep copy of the MediaBuffer and Metadata and release
@@ -2478,13 +2666,20 @@
         updateTrackSizeEstimate();
 
         if (mOwner->exceedsFileSizeLimit()) {
-            ALOGW("Recorded file size exceeds limit %" PRId64 "bytes",
-                    mOwner->mMaxFileSizeLimitBytes);
-            mOwner->notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED, 0);
+            if (mOwner->switchFd() != OK) {
+                ALOGW("Recorded file size exceeds limit %" PRId64 "bytes",
+                        mOwner->mMaxFileSizeLimitBytes);
+                mSource->stop();
+                mOwner->notify(
+                        MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED, 0);
+            } else {
+                ALOGV("%s Current recorded file size exceeds limit %" PRId64 "bytes. Switching output",
+                        getTrackType(), mOwner->mMaxFileSizeLimitBytes);
+            }
             copy->release();
-            mSource->stop();
             break;
         }
+
         if (mOwner->exceedsFileDurationLimit()) {
             ALOGW("Recorded file duration exceeds limit %" PRId64 "microseconds",
                     mOwner->mMaxFileDurationLimitUs);
@@ -2494,11 +2689,23 @@
             break;
         }
 
+        if (mOwner->approachingFileSizeLimit()) {
+            mOwner->notifyApproachingLimit();
+        }
 
         int32_t isSync = false;
         meta_data->findInt32(kKeyIsSyncFrame, &isSync);
         CHECK(meta_data->findInt64(kKeyTime, &timestampUs));
 
+        // For video, skip the first several non-key frames until getting the first key frame.
+        if (mIsVideo && !mGotStartKeyFrame && !isSync) {
+            ALOGD("Video skip non-key frame");
+            copy->release();
+            continue;
+        }
+        if (mIsVideo && isSync) {
+            mGotStartKeyFrame = true;
+        }
 ////////////////////////////////////////////////////////////////////////////////
         if (mStszTableEntries->count() == 0) {
             mFirstSampleTimeRealUs = systemTime() / 1000;
@@ -2527,8 +2734,9 @@
             previousPausedDurationUs += pausedDurationUs - lastDurationUs;
             mResumed = false;
         }
-
+        std::pair<int64_t, int64_t> timestampPair;
         timestampUs -= previousPausedDurationUs;
+        timestampPair.first = timestampUs;
         if (WARN_UNLESS(timestampUs >= 0ll, "for %s track", trackName)) {
             copy->release();
             mSource->stop();
@@ -2536,7 +2744,7 @@
             break;
         }
 
-        if (!mIsAudio) {
+        if (mIsVideo) {
             /*
              * Composition time: timestampUs
              * Decoding time: decodingTimeUs
@@ -2550,9 +2758,11 @@
             if (mLastDecodingTimeUs < 0) {
                 decodingTimeUs = std::max((int64_t)0, decodingTimeUs);
             } else {
-                // increase decoding time by at least 1 tick
-                decodingTimeUs = std::max(
-                        mLastDecodingTimeUs + divUp(1000000, mTimeScale), decodingTimeUs);
+                // increase decoding time by at least the larger vaule of 1 tick and
+                // 0.1 milliseconds. This needs to take into account the possible
+                // delta adjustment in DurationTicks in below.
+                decodingTimeUs = std::max(mLastDecodingTimeUs +
+                        std::max(100, divUp(1000000, mTimeScale)), decodingTimeUs);
             }
 
             mLastDecodingTimeUs = decodingTimeUs;
@@ -2661,7 +2871,6 @@
                 timestampUs += deltaUs;
             }
         }
-
         mStszTableEntries->add(htonl(sampleSize));
         if (mStszTableEntries->count() > 2) {
 
@@ -2686,6 +2895,12 @@
         lastDurationUs = timestampUs - lastTimestampUs;
         lastDurationTicks = currDurationTicks;
         lastTimestampUs = timestampUs;
+        timestampPair.second = timestampUs;
+        // Insert the timestamp into the mTimestampDebugHelper
+        if (mTimestampDebugHelper.size() >= kTimestampDebugCount) {
+            mTimestampDebugHelper.pop_front();
+        }
+        mTimestampDebugHelper.push_back(timestampPair);
 
         if (isSync != 0) {
             addOneStssTableEntry(mStszTableEntries->count());
@@ -2741,6 +2956,7 @@
     }
 
     if (isTrackMalFormed()) {
+        dumpTimeStamps();
         err = ERROR_MALFORMED;
     }
 
@@ -2808,7 +3024,7 @@
         return true;
     }
 
-    if (!mIsAudio && mStssTableEntries->count() == 0) {  // no sync frames for video
+    if (mIsVideo && mStssTableEntries->count() == 0) {  // no sync frames for video
         ALOGE("There are no sync frames for video track");
         return true;
     }
@@ -2831,7 +3047,7 @@
 
     mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
                     trackNum | MEDIA_RECORDER_TRACK_INFO_TYPE,
-                    mIsAudio? 0: 1);
+                    mIsAudio ? 0: 1);
 
     mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
                     trackNum | MEDIA_RECORDER_TRACK_INFO_DURATION_MS,
@@ -2971,11 +3187,11 @@
     return OK;
 }
 
+const char *MPEG4Writer::Track::getTrackType() const {
+    return mIsAudio ? "Audio" : (mIsVideo ? "Video" : "Metadata");
+}
+
 void MPEG4Writer::Track::writeTrackHeader(bool use32BitOffset) {
-
-    ALOGV("%s track time scale: %d",
-        mIsAudio? "Audio": "Video", mTimeScale);
-
     uint32_t now = getMpeg4Time();
     mOwner->beginBox("trak");
         writeTkhdBox(now);
@@ -2985,8 +3201,10 @@
             mOwner->beginBox("minf");
                 if (mIsAudio) {
                     writeSmhdBox();
-                } else {
+                } else if (mIsVideo) {
                     writeVmhdBox();
+                } else {
+                    writeNmhdBox();
                 }
                 writeDinfBox();
                 writeStblBox(use32BitOffset);
@@ -3002,13 +3220,15 @@
     mOwner->writeInt32(1);               // entry count
     if (mIsAudio) {
         writeAudioFourCCBox();
-    } else {
+    } else if (mIsVideo) {
         writeVideoFourCCBox();
+    } else {
+        writeMetadataFourCCBox();
     }
     mOwner->endBox();  // stsd
     writeSttsBox();
-    writeCttsBox();
-    if (!mIsAudio) {
+    if (mIsVideo) {
+        writeCttsBox();
         writeStssBox();
     }
     writeStszBox();
@@ -3017,6 +3237,20 @@
     mOwner->endBox();  // stbl
 }
 
+void MPEG4Writer::Track::writeMetadataFourCCBox() {
+    const char *mime;
+    bool success = mMeta->findCString(kKeyMIMEType, &mime);
+    CHECK(success);
+    const char *fourcc = getFourCCForMime(mime);
+    if (fourcc == NULL) {
+        ALOGE("Unknown mime type '%s'.", mime);
+        TRESPASS();
+    }
+    mOwner->beginBox(fourcc);    // TextMetaDataSampleEntry
+    mOwner->writeCString(mime);  // metadata mime_format
+    mOwner->endBox(); // mett
+}
+
 void MPEG4Writer::Track::writeVideoFourCCBox() {
     const char *mime;
     bool success = mMeta->findCString(kKeyMIMEType, &mime);
@@ -3024,7 +3258,7 @@
     const char *fourcc = getFourCCForMime(mime);
     if (fourcc == NULL) {
         ALOGE("Unknown mime type '%s'.", mime);
-        CHECK(!"should not be here, unknown mime type.");
+        TRESPASS();
     }
 
     mOwner->beginBox(fourcc);        // video format
@@ -3085,7 +3319,7 @@
         mOwner->writeInt16(primaries);
         mOwner->writeInt16(transfer);
         mOwner->writeInt16(coeffs);
-        mOwner->writeInt8(fullRange ? 128 : 0);
+        mOwner->writeInt8(int8_t(fullRange ? 0x80 : 0x0));
         mOwner->endBox(); // colr
     }
 }
@@ -3097,7 +3331,7 @@
     const char *fourcc = getFourCCForMime(mime);
     if (fourcc == NULL) {
         ALOGE("Unknown mime type '%s'.", mime);
-        CHECK(!"should not be here, unknown mime type.");
+        TRESPASS();
     }
 
     mOwner->beginBox(fourcc);        // audio format
@@ -3240,13 +3474,19 @@
 
     mOwner->writeCompositionMatrix(mRotation);       // matrix
 
-    if (mIsAudio) {
+    if (!mIsVideo) {
         mOwner->writeInt32(0);
         mOwner->writeInt32(0);
     } else {
         int32_t width, height;
-        bool success = mMeta->findInt32(kKeyWidth, &width);
-        success = success && mMeta->findInt32(kKeyHeight, &height);
+        bool success = mMeta->findInt32(kKeyDisplayWidth, &width);
+        success = success && mMeta->findInt32(kKeyDisplayHeight, &height);
+
+        // Use width/height if display width/height are not present.
+        if (!success) {
+            success = mMeta->findInt32(kKeyWidth, &width);
+            success = success && mMeta->findInt32(kKeyHeight, &height);
+        }
         CHECK(success);
 
         mOwner->writeInt32(width << 16);   // 32-bit fixed-point value
@@ -3273,34 +3513,54 @@
     mOwner->endBox();
 }
 
+void MPEG4Writer::Track::writeNmhdBox() {
+    mOwner->beginBox("nmhd");
+    mOwner->writeInt32(0);           // version=0, flags=0
+    mOwner->endBox();
+}
+
 void MPEG4Writer::Track::writeHdlrBox() {
     mOwner->beginBox("hdlr");
     mOwner->writeInt32(0);             // version=0, flags=0
     mOwner->writeInt32(0);             // component type: should be mhlr
-    mOwner->writeFourcc(mIsAudio ? "soun" : "vide");  // component subtype
+    mOwner->writeFourcc(mIsAudio ? "soun" : (mIsVideo ? "vide" : "meta"));  // component subtype
     mOwner->writeInt32(0);             // reserved
     mOwner->writeInt32(0);             // reserved
     mOwner->writeInt32(0);             // reserved
     // Removing "r" for the name string just makes the string 4 byte aligned
-    mOwner->writeCString(mIsAudio ? "SoundHandle": "VideoHandle");  // name
+    mOwner->writeCString(mIsAudio ? "SoundHandle": (mIsVideo ? "VideoHandle" : "MetadHandle"));
     mOwner->endBox();
 }
 
 void MPEG4Writer::Track::writeMdhdBox(uint32_t now) {
     int64_t trakDurationUs = getDurationUs();
+    int64_t mdhdDuration = (trakDurationUs * mTimeScale + 5E5) / 1E6;
     mOwner->beginBox("mdhd");
-    mOwner->writeInt32(0);             // version=0, flags=0
-    mOwner->writeInt32(now);           // creation time
-    mOwner->writeInt32(now);           // modification time
-    mOwner->writeInt32(mTimeScale);    // media timescale
-    int32_t mdhdDuration = (trakDurationUs * mTimeScale + 5E5) / 1E6;
-    mOwner->writeInt32(mdhdDuration);  // use media timescale
+
+    if (mdhdDuration > UINT32_MAX) {
+        mOwner->writeInt32((1 << 24));            // version=1, flags=0
+        mOwner->writeInt64((int64_t)now);         // creation time
+        mOwner->writeInt64((int64_t)now);         // modification time
+        mOwner->writeInt32(mTimeScale);           // media timescale
+        mOwner->writeInt64(mdhdDuration);         // media timescale
+    } else {
+        mOwner->writeInt32(0);                      // version=0, flags=0
+        mOwner->writeInt32(now);                    // creation time
+        mOwner->writeInt32(now);                    // modification time
+        mOwner->writeInt32(mTimeScale);             // media timescale
+        mOwner->writeInt32((int32_t)mdhdDuration);  // use media timescale
+    }
     // Language follows the three letter standard ISO-639-2/T
     // 'e', 'n', 'g' for "English", for instance.
     // Each character is packed as the difference between its ASCII value and 0x60.
     // For "English", these are 00101, 01110, 00111.
     // XXX: Where is the padding bit located: 0x15C7?
-    mOwner->writeInt16(0);             // language code
+    const char *lang = NULL;
+    int16_t langCode = 0;
+    if (mMeta->findCString(kKeyMediaLanguage, &lang) && lang && strnlen(lang, 3) > 2) {
+        langCode = ((lang[0] & 0x1f) << 10) | ((lang[1] & 0x1f) << 5) | (lang[2] & 0x1f);
+    }
+    mOwner->writeInt16(langCode);      // language code
     mOwner->writeInt16(0);             // predefined
     mOwner->endBox();
 }
@@ -3404,10 +3664,6 @@
 }
 
 void MPEG4Writer::Track::writeCttsBox() {
-    if (mIsAudio) {  // ctts is not for audio
-        return;
-    }
-
     // There is no B frame at all
     if (mMinCttsOffsetTimeUs == mMaxCttsOffsetTimeUs) {
         return;
@@ -3423,11 +3679,19 @@
 
     mOwner->beginBox("ctts");
     mOwner->writeInt32(0);  // version=0, flags=0
-    uint32_t delta = mMinCttsOffsetTimeUs - getStartTimeOffsetScaledTime();
+    int64_t delta = mMinCttsOffsetTimeUs - getStartTimeOffsetScaledTime();
     mCttsTableEntries->adjustEntries([delta](size_t /* ix */, uint32_t (&value)[2]) {
         // entries are <count, ctts> pairs; adjust only ctts
         uint32_t duration = htonl(value[1]); // back to host byte order
-        value[1] = htonl(duration - delta);
+        // Prevent overflow and underflow
+        if (delta > duration) {
+            duration = 0;
+        } else if (delta < 0 && UINT32_MAX + delta < duration) {
+            duration = UINT32_MAX;
+        } else {
+            duration -= delta;
+        }
+        value[1] = htonl(duration);
     });
     mCttsTableEntries->write(mOwner);
     mOwner->endBox();  // ctts
diff --git a/media/libstagefright/MediaCodec.cpp b/media/libstagefright/MediaCodec.cpp
index e476424..bd71632 100644
--- a/media/libstagefright/MediaCodec.cpp
+++ b/media/libstagefright/MediaCodec.cpp
@@ -19,8 +19,11 @@
 #include <inttypes.h>
 
 #include "include/avc_utils.h"
+#include "include/SecureBuffer.h"
+#include "include/SharedMemoryBuffer.h"
 #include "include/SoftwareRenderer.h"
 
+#include <android/media/IDescrambler.h>
 #include <binder/IMemory.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
@@ -30,10 +33,13 @@
 #include <media/ICrypto.h>
 #include <media/IOMX.h>
 #include <media/IResourceManagerService.h>
+#include <media/MediaCodecBuffer.h>
+#include <media/MediaAnalyticsItem.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/foundation/AUtils.h>
 #include <media/stagefright/foundation/hexdump.h>
 #include <media/stagefright/ACodec.h>
 #include <media/stagefright/BufferProducerWrapper.h>
@@ -53,7 +59,22 @@
 
 namespace android {
 
-static int64_t getId(sp<IResourceManagerClient> client) {
+// key for media statistics
+static const char *kCodecKeyName = "codec";
+// attrs for media statistics
+static const char *kCodecCodec = "android.media.mediacodec.codec";  /* e.g. OMX.google.aac.decoder */
+static const char *kCodecMime = "android.media.mediacodec.mime";    /* e.g. audio/mime */
+static const char *kCodecMode = "android.media.mediacodec.mode";    /* audio, video */
+static const char *kCodecSecure = "android.media.mediacodec.secure";   /* 0, 1 */
+static const char *kCodecHeight = "android.media.mediacodec.height";   /* 0..n */
+static const char *kCodecWidth = "android.media.mediacodec.width";     /* 0..n */
+static const char *kCodecRotation = "android.media.mediacodec.rotation-degrees";  /* 0/90/180/270 */
+static const char *kCodecCrypto = "android.media.mediacodec.crypto";   /* 0,1 */
+static const char *kCodecEncoder = "android.media.mediacodec.encoder"; /* 0,1 */
+
+
+
+static int64_t getId(const sp<IResourceManagerClient> &client) {
     return (int64_t) client.get();
 }
 
@@ -63,9 +84,12 @@
 
 static const int kMaxRetry = 2;
 static const int kMaxReclaimWaitTimeInUs = 500000;  // 0.5s
+static const int kNumBuffersAlign = 16;
+
+////////////////////////////////////////////////////////////////////////////////
 
 struct ResourceManagerClient : public BnResourceManagerClient {
-    ResourceManagerClient(MediaCodec* codec) : mMediaCodec(codec) {}
+    explicit ResourceManagerClient(MediaCodec* codec) : mMediaCodec(codec) {}
 
     virtual bool reclaimResource() {
         sp<MediaCodec> codec = mMediaCodec.promote();
@@ -142,7 +166,7 @@
 
 void MediaCodec::ResourceManagerServiceProxy::addResource(
         int64_t clientId,
-        const sp<IResourceManagerClient> client,
+        const sp<IResourceManagerClient> &client,
         const Vector<MediaResource> &resources) {
     Mutex::Autolock _l(mLock);
     if (mService == NULL) {
@@ -168,10 +192,221 @@
     return mService->reclaimResource(mPid, resources);
 }
 
+////////////////////////////////////////////////////////////////////////////////
+
+MediaCodec::BufferInfo::BufferInfo() : mOwnedByClient(false) {}
+
+////////////////////////////////////////////////////////////////////////////////
+
+namespace {
+
+enum {
+    kWhatFillThisBuffer      = 'fill',
+    kWhatDrainThisBuffer     = 'drai',
+    kWhatEOS                 = 'eos ',
+    kWhatStartCompleted      = 'Scom',
+    kWhatStopCompleted       = 'scom',
+    kWhatReleaseCompleted    = 'rcom',
+    kWhatFlushCompleted      = 'fcom',
+    kWhatError               = 'erro',
+    kWhatComponentAllocated  = 'cAll',
+    kWhatComponentConfigured = 'cCon',
+    kWhatInputSurfaceCreated = 'isfc',
+    kWhatInputSurfaceAccepted = 'isfa',
+    kWhatSignaledInputEOS    = 'seos',
+    kWhatOutputFramesRendered = 'outR',
+    kWhatOutputBuffersChanged = 'outC',
+};
+
+class BufferCallback : public CodecBase::BufferCallback {
+public:
+    explicit BufferCallback(const sp<AMessage> &notify);
+    virtual ~BufferCallback() = default;
+
+    virtual void onInputBufferAvailable(
+            size_t index, const sp<MediaCodecBuffer> &buffer) override;
+    virtual void onOutputBufferAvailable(
+            size_t index, const sp<MediaCodecBuffer> &buffer) override;
+private:
+    const sp<AMessage> mNotify;
+};
+
+BufferCallback::BufferCallback(const sp<AMessage> &notify)
+    : mNotify(notify) {}
+
+void BufferCallback::onInputBufferAvailable(
+        size_t index, const sp<MediaCodecBuffer> &buffer) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatFillThisBuffer);
+    notify->setSize("index", index);
+    notify->setObject("buffer", buffer);
+    notify->post();
+}
+
+void BufferCallback::onOutputBufferAvailable(
+        size_t index, const sp<MediaCodecBuffer> &buffer) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatDrainThisBuffer);
+    notify->setSize("index", index);
+    notify->setObject("buffer", buffer);
+    notify->post();
+}
+
+class CodecCallback : public CodecBase::CodecCallback {
+public:
+    explicit CodecCallback(const sp<AMessage> &notify);
+    virtual ~CodecCallback() = default;
+
+    virtual void onEos(status_t err) override;
+    virtual void onStartCompleted() override;
+    virtual void onStopCompleted() override;
+    virtual void onReleaseCompleted() override;
+    virtual void onFlushCompleted() override;
+    virtual void onError(status_t err, enum ActionCode actionCode) override;
+    virtual void onComponentAllocated(const char *componentName) override;
+    virtual void onComponentConfigured(
+            const sp<AMessage> &inputFormat, const sp<AMessage> &outputFormat) override;
+    virtual void onInputSurfaceCreated(
+            const sp<AMessage> &inputFormat,
+            const sp<AMessage> &outputFormat,
+            const sp<BufferProducerWrapper> &inputSurface) override;
+    virtual void onInputSurfaceCreationFailed(status_t err) override;
+    virtual void onInputSurfaceAccepted(
+            const sp<AMessage> &inputFormat,
+            const sp<AMessage> &outputFormat) override;
+    virtual void onInputSurfaceDeclined(status_t err) override;
+    virtual void onSignaledInputEOS(status_t err) override;
+    virtual void onOutputFramesRendered(const std::list<FrameRenderTracker::Info> &done) override;
+    virtual void onOutputBuffersChanged() override;
+private:
+    const sp<AMessage> mNotify;
+};
+
+CodecCallback::CodecCallback(const sp<AMessage> &notify) : mNotify(notify) {}
+
+void CodecCallback::onEos(status_t err) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatEOS);
+    notify->setInt32("err", err);
+    notify->post();
+}
+
+void CodecCallback::onStartCompleted() {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatStartCompleted);
+    notify->post();
+}
+
+void CodecCallback::onStopCompleted() {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatStopCompleted);
+    notify->post();
+}
+
+void CodecCallback::onReleaseCompleted() {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatReleaseCompleted);
+    notify->post();
+}
+
+void CodecCallback::onFlushCompleted() {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatFlushCompleted);
+    notify->post();
+}
+
+void CodecCallback::onError(status_t err, enum ActionCode actionCode) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatError);
+    notify->setInt32("err", err);
+    notify->setInt32("actionCode", actionCode);
+    notify->post();
+}
+
+void CodecCallback::onComponentAllocated(const char *componentName) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatComponentAllocated);
+    notify->setString("componentName", componentName);
+    notify->post();
+}
+
+void CodecCallback::onComponentConfigured(
+        const sp<AMessage> &inputFormat, const sp<AMessage> &outputFormat) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatComponentConfigured);
+    notify->setMessage("input-format", inputFormat);
+    notify->setMessage("output-format", outputFormat);
+    notify->post();
+}
+
+void CodecCallback::onInputSurfaceCreated(
+        const sp<AMessage> &inputFormat,
+        const sp<AMessage> &outputFormat,
+        const sp<BufferProducerWrapper> &inputSurface) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatInputSurfaceCreated);
+    notify->setMessage("input-format", inputFormat);
+    notify->setMessage("output-format", outputFormat);
+    notify->setObject("input-surface", inputSurface);
+    notify->post();
+}
+
+void CodecCallback::onInputSurfaceCreationFailed(status_t err) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatInputSurfaceCreated);
+    notify->setInt32("err", err);
+    notify->post();
+}
+
+void CodecCallback::onInputSurfaceAccepted(
+        const sp<AMessage> &inputFormat,
+        const sp<AMessage> &outputFormat) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatInputSurfaceAccepted);
+    notify->setMessage("input-format", inputFormat);
+    notify->setMessage("output-format", outputFormat);
+    notify->post();
+}
+
+void CodecCallback::onInputSurfaceDeclined(status_t err) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatInputSurfaceAccepted);
+    notify->setInt32("err", err);
+    notify->post();
+}
+
+void CodecCallback::onSignaledInputEOS(status_t err) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatSignaledInputEOS);
+    if (err != OK) {
+        notify->setInt32("err", err);
+    }
+    notify->post();
+}
+
+void CodecCallback::onOutputFramesRendered(const std::list<FrameRenderTracker::Info> &done) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatOutputFramesRendered);
+    if (MediaCodec::CreateFramesRenderedMessage(done, notify)) {
+        notify->post();
+    }
+}
+
+void CodecCallback::onOutputBuffersChanged() {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatOutputBuffersChanged);
+    notify->post();
+}
+
+}  // namespace
+
+////////////////////////////////////////////////////////////////////////////////
+
 // static
 sp<MediaCodec> MediaCodec::CreateByType(
-        const sp<ALooper> &looper, const AString &mime, bool encoder, status_t *err, pid_t pid) {
-    sp<MediaCodec> codec = new MediaCodec(looper, pid);
+        const sp<ALooper> &looper, const AString &mime, bool encoder, status_t *err, pid_t pid,
+        uid_t uid) {
+    sp<MediaCodec> codec = new MediaCodec(looper, pid, uid);
 
     const status_t ret = codec->init(mime, true /* nameIsType */, encoder);
     if (err != NULL) {
@@ -182,8 +417,8 @@
 
 // static
 sp<MediaCodec> MediaCodec::CreateByComponentName(
-        const sp<ALooper> &looper, const AString &name, status_t *err, pid_t pid) {
-    sp<MediaCodec> codec = new MediaCodec(looper, pid);
+        const sp<ALooper> &looper, const AString &name, status_t *err, pid_t pid, uid_t uid) {
+    sp<MediaCodec> codec = new MediaCodec(looper, pid, uid);
 
     const status_t ret = codec->init(name, false /* nameIsType */, false /* encoder */);
     if (err != NULL) {
@@ -211,53 +446,27 @@
 // static
 sp<PersistentSurface> MediaCodec::CreatePersistentInputSurface() {
     OMXClient client;
-    CHECK_EQ(client.connect(), (status_t)OK);
+    if (client.connect() != OK) {
+        ALOGE("Failed to connect to OMX to create persistent input surface.");
+        return NULL;
+    }
+
     sp<IOMX> omx = client.interface();
 
-    const sp<IMediaCodecList> mediaCodecList = MediaCodecList::getInstance();
-    if (mediaCodecList == NULL) {
-        ALOGE("Failed to obtain MediaCodecList!");
-        return NULL; // if called from Java should raise IOException
-    }
-
-    AString tmp;
-    sp<AMessage> globalSettings = mediaCodecList->getGlobalSettings();
-    if (globalSettings == NULL || !globalSettings->findString(
-            kMaxEncoderInputBuffers, &tmp)) {
-        ALOGE("Failed to get encoder input buffer count!");
-        return NULL;
-    }
-
-    int32_t bufferCount = strtol(tmp.c_str(), NULL, 10);
-    if (bufferCount <= 0
-            || bufferCount > BufferQueue::MAX_MAX_ACQUIRED_BUFFERS) {
-        ALOGE("Encoder input buffer count is invalid!");
-        return NULL;
-    }
-
     sp<IGraphicBufferProducer> bufferProducer;
-    sp<IGraphicBufferConsumer> bufferConsumer;
+    sp<IGraphicBufferSource> bufferSource;
 
-    status_t err = omx->createPersistentInputSurface(
-            &bufferProducer, &bufferConsumer);
+    status_t err = omx->createInputSurface(&bufferProducer, &bufferSource);
 
     if (err != OK) {
         ALOGE("Failed to create persistent input surface.");
         return NULL;
     }
 
-    err = bufferConsumer->setMaxAcquiredBufferCount(bufferCount);
-
-    if (err != NO_ERROR) {
-        ALOGE("Unable to set BQ max acquired buffer count to %u: %d",
-                bufferCount, err);
-        return NULL;
-    }
-
-    return new PersistentSurface(bufferProducer, bufferConsumer);
+    return new PersistentSurface(bufferProducer, bufferSource);
 }
 
-MediaCodec::MediaCodec(const sp<ALooper> &looper, pid_t pid)
+MediaCodec::MediaCodec(const sp<ALooper> &looper, pid_t pid, uid_t uid)
     : mState(UNINITIALIZED),
       mReleasedByResourceManager(false),
       mLooper(looper),
@@ -279,11 +488,32 @@
       mDequeueOutputReplyID(0),
       mHaveInputSurface(false),
       mHavePendingInputBuffers(false) {
+    if (uid == kNoUid) {
+        mUid = IPCThreadState::self()->getCallingUid();
+    } else {
+        mUid = uid;
+    }
+    // set up our new record, get a sessionID, put it into the in-progress list
+    mAnalyticsItem = new MediaAnalyticsItem(kCodecKeyName);
+    if (mAnalyticsItem != NULL) {
+        (void) mAnalyticsItem->generateSessionID();
+        // don't record it yet; only at the end, when we have decided that we have
+        // data worth writing (e.g. .count() > 0)
+    }
 }
 
 MediaCodec::~MediaCodec() {
     CHECK_EQ(mState, UNINITIALIZED);
     mResourceManagerService->removeResource(getId(mResourceManagerClient));
+
+    if (mAnalyticsItem != NULL ) {
+        if (mAnalyticsItem->count() > 0) {
+            mAnalyticsItem->setFinalized(true);
+            mAnalyticsItem->selfrecord();
+        }
+        delete mAnalyticsItem;
+        mAnalyticsItem = NULL;
+    }
 }
 
 // static
@@ -387,7 +617,13 @@
 
     mLooper->registerHandler(this);
 
-    mCodec->setNotificationMessage(new AMessage(kWhatCodecNotify, this));
+    mCodec->setCallback(
+            std::unique_ptr<CodecBase::CodecCallback>(
+                    new CodecCallback(new AMessage(kWhatCodecNotify, this))));
+    mBufferChannel = mCodec->getBufferChannel();
+    mBufferChannel->setCallback(
+            std::unique_ptr<CodecBase::BufferCallback>(
+                    new BufferCallback(new AMessage(kWhatCodecNotify, this))));
 
     sp<AMessage> msg = new AMessage(kWhatInit, this);
     msg->setString("name", name);
@@ -397,6 +633,18 @@
         msg->setInt32("encoder", encoder);
     }
 
+    if (mAnalyticsItem != NULL) {
+        if (nameIsType) {
+            // name is the mime type
+            mAnalyticsItem->setCString(kCodecMime, name.c_str());
+        } else {
+            mAnalyticsItem->setCString(kCodecCodec, name.c_str());
+        }
+        mAnalyticsItem->setCString(kCodecMode, mIsVideo ? "video" : "audio");
+        if (nameIsType)
+            mAnalyticsItem->setInt32(kCodecEncoder, encoder);
+    }
+
     status_t err;
     Vector<MediaResource> resources;
     MediaResource::Type type =
@@ -437,18 +685,33 @@
 
 status_t MediaCodec::configure(
         const sp<AMessage> &format,
+        const sp<Surface> &nativeWindow,
+        const sp<ICrypto> &crypto,
+        uint32_t flags) {
+    return configure(format, nativeWindow, crypto, NULL, flags);
+}
+
+status_t MediaCodec::configure(
+        const sp<AMessage> &format,
         const sp<Surface> &surface,
         const sp<ICrypto> &crypto,
+        const sp<IDescrambler> &descrambler,
         uint32_t flags) {
     sp<AMessage> msg = new AMessage(kWhatConfigure, this);
 
     if (mIsVideo) {
         format->findInt32("width", &mVideoWidth);
         format->findInt32("height", &mVideoHeight);
-        if (!format->findInt32("rotation-degrees", &mRotationDegrees)) {
+        if (!format->findInt32(kCodecRotation, &mRotationDegrees)) {
             mRotationDegrees = 0;
         }
 
+        if (mAnalyticsItem != NULL) {
+            mAnalyticsItem->setInt32(kCodecWidth, mVideoWidth);
+            mAnalyticsItem->setInt32(kCodecHeight, mVideoHeight);
+            mAnalyticsItem->setInt32(kCodecRotation, mRotationDegrees);
+        }
+
         // Prevent possible integer overflow in downstream code.
         if (mInitIsEncoder
                 && (uint64_t)mVideoWidth * mVideoHeight > (uint64_t)INT32_MAX / 4) {
@@ -461,8 +724,18 @@
     msg->setInt32("flags", flags);
     msg->setObject("surface", surface);
 
-    if (crypto != NULL) {
-        msg->setPointer("crypto", crypto.get());
+    if (crypto != NULL || descrambler != NULL) {
+        if (crypto != NULL) {
+            msg->setPointer("crypto", crypto.get());
+        } else {
+            msg->setPointer("descrambler", descrambler.get());
+        }
+        if (mAnalyticsItem != NULL) {
+            // XXX: save indication that it's crypto in some way...
+            mAnalyticsItem->setInt32(kCodecCrypto, 1);
+        }
+    } else if (mFlags & kFlagIsSecure) {
+        ALOGW("Crypto or descrambler should be given for secure codec");
     }
 
     // save msg for reset
@@ -505,6 +778,51 @@
     return err;
 }
 
+status_t MediaCodec::releaseCrypto()
+{
+    ALOGV("releaseCrypto");
+
+    sp<AMessage> msg = new AMessage(kWhatDrmReleaseCrypto, this);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV("releaseCrypto ret: %d ", status);
+    }
+    else {
+        ALOGE("releaseCrypto err: %d", status);
+    }
+
+    return status;
+}
+
+void MediaCodec::onReleaseCrypto(const sp<AMessage>& msg)
+{
+    status_t status = INVALID_OPERATION;
+    if (mCrypto != NULL) {
+        ALOGV("onReleaseCrypto: mCrypto: %p (%d)", mCrypto.get(), mCrypto->getStrongCount());
+        mBufferChannel->setCrypto(NULL);
+        // TODO change to ALOGV
+        ALOGD("onReleaseCrypto: [before clear]  mCrypto: %p (%d)",
+                mCrypto.get(), mCrypto->getStrongCount());
+        mCrypto.clear();
+
+        status = OK;
+    }
+    else {
+        ALOGW("onReleaseCrypto: No mCrypto. err: %d", status);
+    }
+
+    sp<AMessage> response = new AMessage;
+    response->setInt32("status", status);
+
+    sp<AReplyToken> replyID;
+    CHECK(msg->senderAwaitsResponse(&replyID));
+    response->postReply(replyID);
+}
+
 status_t MediaCodec::setInputSurface(
         const sp<PersistentSurface> &surface) {
     sp<AMessage> msg = new AMessage(kWhatSetInputSurface, this);
@@ -614,14 +932,9 @@
 }
 
 bool MediaCodec::hasPendingBuffer(int portIndex) {
-    const Vector<BufferInfo> &buffers = mPortBuffers[portIndex];
-    for (size_t i = 0; i < buffers.size(); ++i) {
-        const BufferInfo &info = buffers.itemAt(i);
-        if (info.mOwnedByClient) {
-            return true;
-        }
-    }
-    return false;
+    return std::any_of(
+            mPortBuffers[portIndex].begin(), mPortBuffers[portIndex].end(),
+            [](const BufferInfo &info) { return info.mOwnedByClient; });
 }
 
 bool MediaCodec::hasPendingBuffer() {
@@ -860,17 +1173,24 @@
     return OK;
 }
 
-status_t MediaCodec::getWidevineLegacyBuffers(Vector<sp<ABuffer> > *buffers) const {
-    sp<AMessage> msg = new AMessage(kWhatGetBuffers, this);
-    msg->setInt32("portIndex", kPortIndexInput);
-    msg->setPointer("buffers", buffers);
-    msg->setInt32("widevine", true);
+status_t MediaCodec::getMetrics(MediaAnalyticsItem * &reply) {
 
-    sp<AMessage> response;
-    return PostAndAwaitResponse(msg, &response);
+    reply = NULL;
+
+    // shouldn't happen, but be safe
+    if (mAnalyticsItem == NULL) {
+        return UNKNOWN_ERROR;
+    }
+
+    // XXX: go get current values for whatever in-flight data we want
+
+    // send it back to the caller.
+    reply = mAnalyticsItem->dup();
+
+    return OK;
 }
 
-status_t MediaCodec::getInputBuffers(Vector<sp<ABuffer> > *buffers) const {
+status_t MediaCodec::getInputBuffers(Vector<sp<MediaCodecBuffer> > *buffers) const {
     sp<AMessage> msg = new AMessage(kWhatGetBuffers, this);
     msg->setInt32("portIndex", kPortIndexInput);
     msg->setPointer("buffers", buffers);
@@ -879,7 +1199,7 @@
     return PostAndAwaitResponse(msg, &response);
 }
 
-status_t MediaCodec::getOutputBuffers(Vector<sp<ABuffer> > *buffers) const {
+status_t MediaCodec::getOutputBuffers(Vector<sp<MediaCodecBuffer> > *buffers) const {
     sp<AMessage> msg = new AMessage(kWhatGetBuffers, this);
     msg->setInt32("portIndex", kPortIndexOutput);
     msg->setPointer("buffers", buffers);
@@ -888,17 +1208,17 @@
     return PostAndAwaitResponse(msg, &response);
 }
 
-status_t MediaCodec::getOutputBuffer(size_t index, sp<ABuffer> *buffer) {
+status_t MediaCodec::getOutputBuffer(size_t index, sp<MediaCodecBuffer> *buffer) {
     sp<AMessage> format;
     return getBufferAndFormat(kPortIndexOutput, index, buffer, &format);
 }
 
 status_t MediaCodec::getOutputFormat(size_t index, sp<AMessage> *format) {
-    sp<ABuffer> buffer;
+    sp<MediaCodecBuffer> buffer;
     return getBufferAndFormat(kPortIndexOutput, index, &buffer, format);
 }
 
-status_t MediaCodec::getInputBuffer(size_t index, sp<ABuffer> *buffer) {
+status_t MediaCodec::getInputBuffer(size_t index, sp<MediaCodecBuffer> *buffer) {
     sp<AMessage> format;
     return getBufferAndFormat(kPortIndexInput, index, buffer, &format);
 }
@@ -909,7 +1229,7 @@
 
 status_t MediaCodec::getBufferAndFormat(
         size_t portIndex, size_t index,
-        sp<ABuffer> *buffer, sp<AMessage> *format) {
+        sp<MediaCodecBuffer> *buffer, sp<AMessage> *format) {
     // use mutex instead of a context switch
     if (mReleasedByResourceManager) {
         ALOGE("getBufferAndFormat - resource already released");
@@ -917,7 +1237,7 @@
     }
 
     if (buffer == NULL) {
-        ALOGE("getBufferAndFormat - null ABuffer");
+        ALOGE("getBufferAndFormat - null MediaCodecBuffer");
         return INVALID_OPERATION;
     }
 
@@ -938,26 +1258,22 @@
     // we also don't want mOwnedByClient to change during this
     Mutex::Autolock al(mBufferLock);
 
-    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
-    if (index >= buffers->size()) {
+    std::vector<BufferInfo> &buffers = mPortBuffers[portIndex];
+    if (index >= buffers.size()) {
         ALOGE("getBufferAndFormat - trying to get buffer with "
-              "bad index (index=%zu buffer_size=%zu)", index, buffers->size());
+              "bad index (index=%zu buffer_size=%zu)", index, buffers.size());
         return INVALID_OPERATION;
     }
 
-    const BufferInfo &info = buffers->itemAt(index);
+    const BufferInfo &info = buffers[index];
     if (!info.mOwnedByClient) {
         ALOGE("getBufferAndFormat - invalid operation "
               "(the index %zu is not owned by client)", index);
         return INVALID_OPERATION;
     }
 
-    // by the time buffers array is initialized, crypto is set
-    *buffer = (portIndex == kPortIndexInput && mCrypto != NULL) ?
-                  info.mEncryptedData :
-                  info.mData;
-
-    *format = info.mFormat;
+    *buffer = info.mData;
+    *format = info.mData->format();
 
     return OK;
 }
@@ -1046,8 +1362,8 @@
             return false;
         }
 
-        const sp<ABuffer> &buffer =
-            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
+        const sp<MediaCodecBuffer> &buffer =
+            mPortBuffers[kPortIndexOutput][index].mData;
 
         response->setSize("index", index);
         response->setSize("offset", buffer->offset());
@@ -1058,19 +1374,8 @@
 
         response->setInt64("timeUs", timeUs);
 
-        int32_t omxFlags;
-        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
-
-        uint32_t flags = 0;
-        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
-            flags |= BUFFER_FLAG_SYNCFRAME;
-        }
-        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
-            flags |= BUFFER_FLAG_CODECCONFIG;
-        }
-        if (omxFlags & OMX_BUFFERFLAG_EOS) {
-            flags |= BUFFER_FLAG_EOS;
-        }
+        int32_t flags;
+        CHECK(buffer->meta()->findInt32("flags", &flags));
 
         response->setInt32("flags", flags);
         response->postReply(replyID);
@@ -1087,7 +1392,7 @@
             CHECK(msg->findInt32("what", &what));
 
             switch (what) {
-                case CodecBase::kWhatError:
+                case kWhatError:
                 {
                     int32_t err, actionCode;
                     CHECK(msg->findInt32("err", &err));
@@ -1123,14 +1428,16 @@
                             break;
                         }
 
-                        case STOPPING:
                         case RELEASING:
                         {
                             // Ignore the error, assuming we'll still get
-                            // the shutdown complete notification.
-
+                            // the shutdown complete notification. If we
+                            // don't, we'll timeout and force release.
                             sendErrorResponse = false;
-
+                        }
+                        // fall-thru
+                        case STOPPING:
+                        {
                             if (mFlags & kFlagSawMediaServerDie) {
                                 // MediaServer died, there definitely won't
                                 // be a shutdown complete notification after
@@ -1144,6 +1451,7 @@
                                     mComponentName.clear();
                                 }
                                 (new AMessage)->postReply(mReplyID);
+                                sendErrorResponse = false;
                             }
                             break;
                         }
@@ -1219,7 +1527,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatComponentAllocated:
+                case kWhatComponentAllocated:
                 {
                     CHECK_EQ(mState, INITIALIZING);
                     setState(INITIALIZED);
@@ -1227,6 +1535,10 @@
 
                     CHECK(msg->findString("componentName", &mComponentName));
 
+                    if (mComponentName.c_str()) {
+                        mAnalyticsItem->setCString(kCodecCodec, mComponentName.c_str());
+                    }
+
                     if (mComponentName.startsWith("OMX.google.")) {
                         mFlags |= kFlagUsesSoftwareRenderer;
                     } else {
@@ -1237,9 +1549,11 @@
                     if (mComponentName.endsWith(".secure")) {
                         mFlags |= kFlagIsSecure;
                         resourceType = MediaResource::kSecureCodec;
+                        mAnalyticsItem->setInt32(kCodecSecure, 1);
                     } else {
                         mFlags &= ~kFlagIsSecure;
                         resourceType = MediaResource::kNonSecureCodec;
+                        mAnalyticsItem->setInt32(kCodecSecure, 0);
                     }
 
                     if (mIsVideo) {
@@ -1251,7 +1565,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatComponentConfigured:
+                case kWhatComponentConfigured:
                 {
                     if (mState == UNINITIALIZED || mState == INITIALIZED) {
                         // In case a kWhatError message came in and replied with error,
@@ -1280,7 +1594,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatInputSurfaceCreated:
+                case kWhatInputSurfaceCreated:
                 {
                     // response to initiateCreateInputSurface()
                     status_t err = NO_ERROR;
@@ -1304,12 +1618,14 @@
                     break;
                 }
 
-                case CodecBase::kWhatInputSurfaceAccepted:
+                case kWhatInputSurfaceAccepted:
                 {
                     // response to initiateSetInputSurface()
                     status_t err = NO_ERROR;
                     sp<AMessage> response = new AMessage();
                     if (!msg->findInt32("err", &err)) {
+                        CHECK(msg->findMessage("input-format", &mInputFormat));
+                        CHECK(msg->findMessage("output-format", &mOutputFormat));
                         mHaveInputSurface = true;
                     } else {
                         response->setInt32("err", err);
@@ -1318,7 +1634,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatSignaledInputEOS:
+                case kWhatSignaledInputEOS:
                 {
                     // response to signalEndOfInputStream()
                     sp<AMessage> response = new AMessage;
@@ -1330,138 +1646,28 @@
                     break;
                 }
 
-
-                case CodecBase::kWhatBuffersAllocated:
+                case kWhatStartCompleted:
                 {
-                    Mutex::Autolock al(mBufferLock);
-                    int32_t portIndex;
-                    CHECK(msg->findInt32("portIndex", &portIndex));
-
-                    ALOGV("%s buffers allocated",
-                          portIndex == kPortIndexInput ? "input" : "output");
-
-                    CHECK(portIndex == kPortIndexInput
-                            || portIndex == kPortIndexOutput);
-
-                    mPortBuffers[portIndex].clear();
-
-                    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
-
-                    sp<RefBase> obj;
-                    CHECK(msg->findObject("portDesc", &obj));
-
-                    sp<CodecBase::PortDescription> portDesc =
-                        static_cast<CodecBase::PortDescription *>(obj.get());
-
-                    size_t numBuffers = portDesc->countBuffers();
-
-                    size_t totalSize = 0;
-                    for (size_t i = 0; i < numBuffers; ++i) {
-                        if (portIndex == kPortIndexInput && mCrypto != NULL) {
-                            totalSize += portDesc->bufferAt(i)->capacity();
-                        }
+                    CHECK_EQ(mState, STARTING);
+                    if (mIsVideo) {
+                        addResource(
+                                MediaResource::kGraphicMemory,
+                                MediaResource::kUnspecifiedSubType,
+                                getGraphicBufferSize());
                     }
-
-                    if (totalSize) {
-                        mDealer = new MemoryDealer(totalSize, "MediaCodec");
-                    }
-
-                    for (size_t i = 0; i < numBuffers; ++i) {
-                        BufferInfo info;
-                        info.mBufferID = portDesc->bufferIDAt(i);
-                        info.mOwnedByClient = false;
-                        info.mData = portDesc->bufferAt(i);
-                        info.mNativeHandle = portDesc->handleAt(i);
-                        info.mMemRef = portDesc->memRefAt(i);
-
-                        if (portIndex == kPortIndexInput && mCrypto != NULL) {
-                            sp<IMemory> mem = mDealer->allocate(info.mData->capacity());
-                            info.mEncryptedData =
-                                new ABuffer(mem->pointer(), info.mData->capacity());
-                            info.mSharedEncryptedBuffer = mem;
-                        }
-
-                        buffers->push_back(info);
-                    }
-
-                    if (portIndex == kPortIndexOutput) {
-                        if (mState == STARTING) {
-                            // We're always allocating output buffers after
-                            // allocating input buffers, so this is a good
-                            // indication that now all buffers are allocated.
-                            if (mIsVideo) {
-                                addResource(
-                                        MediaResource::kGraphicMemory,
-                                        MediaResource::kUnspecifiedSubType,
-                                        getGraphicBufferSize());
-                            }
-                            setState(STARTED);
-                            (new AMessage)->postReply(mReplyID);
-                        } else {
-                            mFlags |= kFlagOutputBuffersChanged;
-                            postActivityNotificationIfPossible();
-                        }
-                    }
+                    setState(STARTED);
+                    (new AMessage)->postReply(mReplyID);
                     break;
                 }
 
-                case CodecBase::kWhatOutputFormatChanged:
+                case kWhatOutputBuffersChanged:
                 {
-                    CHECK(msg->findMessage("format", &mOutputFormat));
-
-                    ALOGV("[%s] output format changed to: %s",
-                            mComponentName.c_str(), mOutputFormat->debugString(4).c_str());
-
-                    if (mSoftRenderer == NULL &&
-                            mSurface != NULL &&
-                            (mFlags & kFlagUsesSoftwareRenderer)) {
-                        AString mime;
-                        CHECK(mOutputFormat->findString("mime", &mime));
-
-                        // TODO: propagate color aspects to software renderer to allow better
-                        // color conversion to RGB. For now, just mark dataspace for YUV
-                        // rendering.
-                        int32_t dataSpace;
-                        if (mOutputFormat->findInt32("android._dataspace", &dataSpace)) {
-                            ALOGD("[%s] setting dataspace on output surface to #%x",
-                                    mComponentName.c_str(), dataSpace);
-                            int err = native_window_set_buffers_data_space(
-                                    mSurface.get(), (android_dataspace)dataSpace);
-                            ALOGW_IF(err != 0, "failed to set dataspace on surface (%d)", err);
-                        }
-
-                        if (mime.startsWithIgnoreCase("video/")) {
-                            mSoftRenderer = new SoftwareRenderer(mSurface, mRotationDegrees);
-                        }
-                    }
-
-                    if (mFlags & kFlagIsEncoder) {
-                        // Before we announce the format change we should
-                        // collect codec specific data and amend the output
-                        // format as necessary.
-                        mFlags |= kFlagGatherCodecSpecificData;
-                    } else if (mFlags & kFlagIsAsync) {
-                        onOutputFormatChanged();
-                    } else {
-                        mFlags |= kFlagOutputFormatChanged;
-                        postActivityNotificationIfPossible();
-                    }
-
-                    // Notify mCrypto of video resolution changes
-                    if (mCrypto != NULL) {
-                        int32_t left, top, right, bottom, width, height;
-                        if (mOutputFormat->findRect("crop", &left, &top, &right, &bottom)) {
-                            mCrypto->notifyResolution(right - left + 1, bottom - top + 1);
-                        } else if (mOutputFormat->findInt32("width", &width)
-                                && mOutputFormat->findInt32("height", &height)) {
-                            mCrypto->notifyResolution(width, height);
-                        }
-                    }
-
+                    mFlags |= kFlagOutputBuffersChanged;
+                    postActivityNotificationIfPossible();
                     break;
                 }
 
-                case CodecBase::kWhatOutputFramesRendered:
+                case kWhatOutputFramesRendered:
                 {
                     // ignore these in all states except running, and check that we have a
                     // notification set
@@ -1473,7 +1679,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatFillThisBuffer:
+                case kWhatFillThisBuffer:
                 {
                     /* size_t index = */updateBuffers(kPortIndexInput, msg);
 
@@ -1528,7 +1734,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatDrainThisBuffer:
+                case kWhatDrainThisBuffer:
                 {
                     /* size_t index = */updateBuffers(kPortIndexOutput, msg);
 
@@ -1539,34 +1745,71 @@
                         break;
                     }
 
-                    sp<ABuffer> buffer;
-                    CHECK(msg->findBuffer("buffer", &buffer));
+                    sp<RefBase> obj;
+                    CHECK(msg->findObject("buffer", &obj));
+                    sp<MediaCodecBuffer> buffer = static_cast<MediaCodecBuffer *>(obj.get());
 
-                    int32_t omxFlags;
-                    CHECK(msg->findInt32("flags", &omxFlags));
+                    if (mOutputFormat != buffer->format()) {
+                        mOutputFormat = buffer->format();
+                        ALOGV("[%s] output format changed to: %s",
+                                mComponentName.c_str(), mOutputFormat->debugString(4).c_str());
 
-                    buffer->meta()->setInt32("omxFlags", omxFlags);
+                        if (mSoftRenderer == NULL &&
+                                mSurface != NULL &&
+                                (mFlags & kFlagUsesSoftwareRenderer)) {
+                            AString mime;
+                            CHECK(mOutputFormat->findString("mime", &mime));
 
-                    if (mFlags & kFlagGatherCodecSpecificData) {
-                        // This is the very first output buffer after a
-                        // format change was signalled, it'll either contain
-                        // the one piece of codec specific data we can expect
-                        // or there won't be codec specific data.
-                        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
-                            status_t err =
-                                amendOutputFormatWithCodecSpecificData(buffer);
+                            // TODO: propagate color aspects to software renderer to allow better
+                            // color conversion to RGB. For now, just mark dataspace for YUV
+                            // rendering.
+                            int32_t dataSpace;
+                            if (mOutputFormat->findInt32("android._dataspace", &dataSpace)) {
+                                ALOGD("[%s] setting dataspace on output surface to #%x",
+                                        mComponentName.c_str(), dataSpace);
+                                int err = native_window_set_buffers_data_space(
+                                        mSurface.get(), (android_dataspace)dataSpace);
+                                ALOGW_IF(err != 0, "failed to set dataspace on surface (%d)", err);
+                            }
 
-                            if (err != OK) {
-                                ALOGE("Codec spit out malformed codec "
-                                      "specific data!");
+                            if (mime.startsWithIgnoreCase("video/")) {
+                                mSoftRenderer = new SoftwareRenderer(mSurface, mRotationDegrees);
                             }
                         }
 
-                        mFlags &= ~kFlagGatherCodecSpecificData;
+                        if (mFlags & kFlagIsEncoder) {
+                            // Before we announce the format change we should
+                            // collect codec specific data and amend the output
+                            // format as necessary.
+                            int32_t flags = 0;
+                            (void) buffer->meta()->findInt32("flags", &flags);
+                            if (flags & BUFFER_FLAG_CODECCONFIG) {
+                                status_t err =
+                                    amendOutputFormatWithCodecSpecificData(buffer);
+
+                                if (err != OK) {
+                                    ALOGE("Codec spit out malformed codec "
+                                          "specific data!");
+                                }
+                            }
+                        }
+
                         if (mFlags & kFlagIsAsync) {
                             onOutputFormatChanged();
                         } else {
                             mFlags |= kFlagOutputFormatChanged;
+                            postActivityNotificationIfPossible();
+                        }
+
+                        // Notify mCrypto of video resolution changes
+                        if (mCrypto != NULL) {
+                            int32_t left, top, right, bottom, width, height;
+                            if (mOutputFormat->findRect("crop", &left, &top, &right, &bottom)) {
+                                mCrypto->notifyResolution(right - left + 1, bottom - top + 1);
+                            } else if (mOutputFormat->findInt32("width", &width)
+                                    && mOutputFormat->findInt32("height", &height)) {
+                                mCrypto->notifyResolution(width, height);
+                            }
                         }
                     }
 
@@ -1585,22 +1828,33 @@
                     break;
                 }
 
-                case CodecBase::kWhatEOS:
+                case kWhatEOS:
                 {
                     // We already notify the client of this by using the
                     // corresponding flag in "onOutputBufferReady".
                     break;
                 }
 
-                case CodecBase::kWhatShutdownCompleted:
+                case kWhatStopCompleted:
                 {
-                    if (mState == STOPPING) {
-                        setState(INITIALIZED);
-                    } else {
-                        CHECK_EQ(mState, RELEASING);
-                        setState(UNINITIALIZED);
-                        mComponentName.clear();
+                    if (mState != STOPPING) {
+                        ALOGW("Received kWhatStopCompleted in state %d", mState);
+                        break;
                     }
+                    setState(INITIALIZED);
+                    (new AMessage)->postReply(mReplyID);
+                    break;
+                }
+
+                case kWhatReleaseCompleted:
+                {
+                    if (mState != RELEASING) {
+                        ALOGW("Received kWhatReleaseCompleted in state %d", mState);
+                        break;
+                    }
+                    setState(UNINITIALIZED);
+                    mComponentName.clear();
+
                     mFlags &= ~kFlagIsComponentAllocated;
 
                     mResourceManagerService->removeResource(getId(mResourceManagerClient));
@@ -1609,7 +1863,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatFlushCompleted:
+                case kWhatFlushCompleted:
                 {
                     if (mState != FLUSHING) {
                         ALOGW("received FlushCompleted message in state %d",
@@ -1751,7 +2005,22 @@
                 crypto = NULL;
             }
 
+            ALOGV("kWhatConfigure: Old mCrypto: %p (%d)",
+                    mCrypto.get(), (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+
             mCrypto = static_cast<ICrypto *>(crypto);
+            mBufferChannel->setCrypto(mCrypto);
+
+            ALOGV("kWhatConfigure: New mCrypto: %p (%d)",
+                    mCrypto.get(), (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+
+            void *descrambler;
+            if (!msg->findPointer("descrambler", &descrambler)) {
+                descrambler = NULL;
+            }
+
+            mDescrambler = static_cast<IDescrambler *>(descrambler);
+            mBufferChannel->setDescrambler(mDescrambler);
 
             uint32_t flags;
             CHECK(msg->findInt32("flags", (int32_t *)&flags));
@@ -1773,7 +2042,6 @@
             CHECK(msg->senderAwaitsResponse(&replyID));
 
             status_t err = OK;
-            sp<Surface> surface;
 
             switch (mState) {
                 case CONFIGURED:
@@ -1915,7 +2183,9 @@
                 }
             }
 
-            if (!((mFlags & kFlagIsComponentAllocated) && targetState == UNINITIALIZED) // See 1
+            bool isReleasingAllocatedComponent =
+                    (mFlags & kFlagIsComponentAllocated) && targetState == UNINITIALIZED;
+            if (!isReleasingAllocatedComponent // See 1
                     && mState != INITIALIZED
                     && mState != CONFIGURED && !isExecuting()) {
                 // 1) Permit release to shut down the component if allocated.
@@ -1939,6 +2209,14 @@
                 break;
             }
 
+            // If we're flushing, or we're stopping but received a release
+            // request, post the reply for the pending call first, and consider
+            // it done. The reply token will be replaced after this, and we'll
+            // no longer be able to reply.
+            if (mState == FLUSHING || mState == STOPPING) {
+                (new AMessage)->postReply(mReplyID);
+            }
+
             if (mFlags & kFlagSawMediaServerDie) {
                 // It's dead, Jim. Don't expect initiateShutdown to yield
                 // any useful results now...
@@ -1950,6 +2228,15 @@
                 break;
             }
 
+            // If we already have an error, component may not be able to
+            // complete the shutdown properly. If we're stopping, post the
+            // reply now with an error to unblock the client, client can
+            // release after the failure (instead of ANR).
+            if (msg->what() == kWhatStop && (mFlags & kFlagStickyError)) {
+                PostReplyWithError(replyID, getStickyError());
+                break;
+            }
+
             mReplyID = replyID;
             setState(msg->what() == kWhatStop ? STOPPING : RELEASING);
 
@@ -1961,6 +2248,7 @@
             if (mSoftRenderer != NULL && (mFlags & kFlagPushBlankBuffersOnShutdown)) {
                 pushBlankBuffersToNativeWindow(mSurface.get());
             }
+
             break;
         }
 
@@ -2123,7 +2411,7 @@
             sp<AReplyToken> replyID;
             CHECK(msg->senderAwaitsResponse(&replyID));
 
-            if (!isExecuting()) {
+            if (!isExecuting() || !mHaveInputSurface) {
                 PostReplyWithError(replyID, INVALID_OPERATION);
                 break;
             } else if (mFlags & kFlagStickyError) {
@@ -2140,12 +2428,7 @@
         {
             sp<AReplyToken> replyID;
             CHECK(msg->senderAwaitsResponse(&replyID));
-            // Unfortunately widevine legacy source requires knowing all of the
-            // codec input buffers, so we have to provide them even in async mode.
-            int32_t widevine = 0;
-            msg->findInt32("widevine", &widevine);
-
-            if (!isExecuting() || ((mFlags & kFlagIsAsync) && !widevine)) {
+            if (!isExecuting() || (mFlags & kFlagIsAsync)) {
                 PostReplyWithError(replyID, INVALID_OPERATION);
                 break;
             } else if (mFlags & kFlagStickyError) {
@@ -2156,7 +2439,7 @@
             int32_t portIndex;
             CHECK(msg->findInt32("portIndex", &portIndex));
 
-            Vector<sp<ABuffer> > *dstBuffers;
+            Vector<sp<MediaCodecBuffer> > *dstBuffers;
             CHECK(msg->findPointer("buffers", (void **)&dstBuffers));
 
             dstBuffers->clear();
@@ -2164,14 +2447,10 @@
             // createInputSurface(), or persistent set by setInputSurface()),
             // give the client an empty input buffers array.
             if (portIndex != kPortIndexInput || !mHaveInputSurface) {
-                const Vector<BufferInfo> &srcBuffers = mPortBuffers[portIndex];
-
-                for (size_t i = 0; i < srcBuffers.size(); ++i) {
-                    const BufferInfo &info = srcBuffers.itemAt(i);
-
-                    dstBuffers->push_back(
-                            (portIndex == kPortIndexInput && mCrypto != NULL)
-                                    ? info.mEncryptedData : info.mData);
+                if (portIndex == kPortIndexInput) {
+                    mBufferChannel->getInputBufferArray(dstBuffers);
+                } else {
+                    mBufferChannel->getOutputBufferArray(dstBuffers);
                 }
             }
 
@@ -2272,6 +2551,12 @@
             break;
         }
 
+        case kWhatDrmReleaseCrypto:
+        {
+            onReleaseCrypto(msg);
+            break;
+        }
+
         default:
             TRESPASS();
     }
@@ -2300,18 +2585,20 @@
 status_t MediaCodec::queueCSDInputBuffer(size_t bufferIndex) {
     CHECK(!mCSD.empty());
 
-    const BufferInfo *info =
-        &mPortBuffers[kPortIndexInput].itemAt(bufferIndex);
+    const BufferInfo &info = mPortBuffers[kPortIndexInput][bufferIndex];
 
     sp<ABuffer> csd = *mCSD.begin();
     mCSD.erase(mCSD.begin());
 
-    const sp<ABuffer> &codecInputData =
-        (mCrypto != NULL) ? info->mEncryptedData : info->mData;
+    const sp<MediaCodecBuffer> &codecInputData = info.mData;
 
     if (csd->size() > codecInputData->capacity()) {
         return -EINVAL;
     }
+    if (codecInputData->data() == NULL) {
+        ALOGV("Input buffer %zu is not properly allocated", bufferIndex);
+        return -EINVAL;
+    }
 
     memcpy(codecInputData->data(), csd->data(), csd->size());
 
@@ -2333,7 +2620,12 @@
         delete mSoftRenderer;
         mSoftRenderer = NULL;
 
+        if ( mCrypto != NULL ) {
+            ALOGV("setState: ~mCrypto: %p (%d)",
+                    mCrypto.get(), (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+        }
         mCrypto.clear();
+        mDescrambler.clear();
         handleSetSurface(NULL);
 
         mInputFormat.clear();
@@ -2342,7 +2634,6 @@
         mFlags &= ~kFlagOutputBuffersChanged;
         mFlags &= ~kFlagStickyError;
         mFlags &= ~kFlagIsEncoder;
-        mFlags &= ~kFlagGatherCodecSpecificData;
         mFlags &= ~kFlagIsAsync;
         mStickyError = OK;
 
@@ -2376,27 +2667,19 @@
     CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
     Mutex::Autolock al(mBufferLock);
 
-    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
+    for (size_t i = 0; i < mPortBuffers[portIndex].size(); ++i) {
+        BufferInfo *info = &mPortBuffers[portIndex][i];
 
-    for (size_t i = 0; i < buffers->size(); ++i) {
-        BufferInfo *info = &buffers->editItemAt(i);
-
-        if (info->mNotify != NULL) {
-            sp<AMessage> msg = info->mNotify;
-            info->mNotify = NULL;
+        if (info->mData != nullptr) {
+            sp<MediaCodecBuffer> buffer = info->mData;
             if (isReclaim && info->mOwnedByClient) {
                 ALOGD("port %d buffer %zu still owned by client when codec is reclaimed",
                         portIndex, i);
             } else {
-                info->mMemRef = NULL;
                 info->mOwnedByClient = false;
+                info->mData.clear();
             }
-
-            if (portIndex == kPortIndexInput) {
-                /* no error, just returning buffers */
-                msg->setInt32("err", OK);
-            }
-            msg->post();
+            mBufferChannel->discardBuffer(buffer);
         }
     }
 
@@ -2406,30 +2689,22 @@
 size_t MediaCodec::updateBuffers(
         int32_t portIndex, const sp<AMessage> &msg) {
     CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
+    size_t index;
+    CHECK(msg->findSize("index", &index));
+    sp<RefBase> obj;
+    CHECK(msg->findObject("buffer", &obj));
+    sp<MediaCodecBuffer> buffer = static_cast<MediaCodecBuffer *>(obj.get());
 
-    uint32_t bufferID;
-    CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
-
-    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
-
-    for (size_t i = 0; i < buffers->size(); ++i) {
-        BufferInfo *info = &buffers->editItemAt(i);
-
-        if (info->mBufferID == bufferID) {
-            CHECK(info->mNotify == NULL);
-            CHECK(msg->findMessage("reply", &info->mNotify));
-
-            info->mFormat =
-                (portIndex == kPortIndexInput) ? mInputFormat : mOutputFormat;
-            mAvailPortBuffers[portIndex].push_back(i);
-
-            return i;
+    {
+        Mutex::Autolock al(mBufferLock);
+        if (mPortBuffers[portIndex].size() <= index) {
+            mPortBuffers[portIndex].resize(align(index + 1, kNumBuffersAlign));
         }
+        mPortBuffers[portIndex][index].mData = buffer;
     }
+    mAvailPortBuffers[portIndex].push_back(index);
 
-    TRESPASS();
-
-    return 0;
+    return index;
 }
 
 status_t MediaCodec::onQueueInputBuffer(const sp<AMessage> &msg) {
@@ -2455,7 +2730,7 @@
     CryptoPlugin::Pattern pattern;
 
     if (msg->findSize("size", &size)) {
-        if (mCrypto != NULL) {
+        if (hasCryptoOrDescrambler()) {
             ss.mNumBytesOfClearData = size;
             ss.mNumBytesOfEncryptedData = 0;
 
@@ -2467,7 +2742,9 @@
             pattern.mSkipBlocks = 0;
         }
     } else {
-        if (mCrypto == NULL) {
+        if (!hasCryptoOrDescrambler()) {
+            ALOGE("[%s] queuing secure buffer without mCrypto or mDescrambler!",
+                    mComponentName.c_str());
             return -EINVAL;
         }
 
@@ -2494,9 +2771,9 @@
         return -ERANGE;
     }
 
-    BufferInfo *info = &mPortBuffers[kPortIndexInput].editItemAt(index);
+    BufferInfo *info = &mPortBuffers[kPortIndexInput][index];
 
-    if (info->mNotify == NULL || !info->mOwnedByClient) {
+    if (info->mData == nullptr || !info->mOwnedByClient) {
         return -EACCES;
     }
 
@@ -2504,10 +2781,8 @@
         return -EINVAL;
     }
 
-    sp<AMessage> reply = info->mNotify;
     info->mData->setRange(offset, size);
     info->mData->meta()->setInt64("timeUs", timeUs);
-
     if (flags & BUFFER_FLAG_EOS) {
         info->mData->meta()->setInt32("eos", true);
     }
@@ -2516,60 +2791,39 @@
         info->mData->meta()->setInt32("csd", true);
     }
 
-    if (mCrypto != NULL) {
-        if (size > info->mEncryptedData->capacity()) {
-            return -ERANGE;
-        }
-
+    sp<MediaCodecBuffer> buffer = info->mData;
+    status_t err = OK;
+    if (hasCryptoOrDescrambler()) {
         AString *errorDetailMsg;
         CHECK(msg->findPointer("errorDetailMsg", (void **)&errorDetailMsg));
 
-        void *dst_pointer = info->mData->base();
-        ICrypto::DestinationType dst_type = ICrypto::kDestinationTypeOpaqueHandle;
-
-        if (info->mNativeHandle != NULL) {
-            dst_pointer = (void *)info->mNativeHandle->handle();
-            dst_type = ICrypto::kDestinationTypeNativeHandle;
-        } else if ((mFlags & kFlagIsSecure) == 0) {
-            dst_type = ICrypto::kDestinationTypeVmPointer;
-        }
-
-        ssize_t result = mCrypto->decrypt(
-                dst_type,
+        err = mBufferChannel->queueSecureInputBuffer(
+                buffer,
+                (mFlags & kFlagIsSecure),
                 key,
                 iv,
                 mode,
                 pattern,
-                info->mSharedEncryptedBuffer,
-                offset,
                 subSamples,
                 numSubSamples,
-                dst_pointer,
                 errorDetailMsg);
-
-        if (result < 0) {
-            return result;
-        }
-
-        info->mData->setRange(0, result);
+    } else {
+        err = mBufferChannel->queueInputBuffer(buffer);
     }
 
-    // synchronization boundary for getBufferAndFormat
-    {
+    if (err == OK) {
+        // synchronization boundary for getBufferAndFormat
         Mutex::Autolock al(mBufferLock);
         info->mOwnedByClient = false;
+        info->mData.clear();
     }
-    reply->setBuffer("buffer", info->mData);
-    reply->post();
 
-    info->mNotify = NULL;
-
-    return OK;
+    return err;
 }
 
 //static
 size_t MediaCodec::CreateFramesRenderedMessage(
-        std::list<FrameRenderTracker::Info> done, sp<AMessage> &msg) {
+        const std::list<FrameRenderTracker::Info> &done, sp<AMessage> &msg) {
     size_t index = 0;
 
     for (std::list<FrameRenderTracker::Info>::const_iterator it = done.cbegin();
@@ -2601,23 +2855,24 @@
         return -ERANGE;
     }
 
-    BufferInfo *info = &mPortBuffers[kPortIndexOutput].editItemAt(index);
+    BufferInfo *info = &mPortBuffers[kPortIndexOutput][index];
 
-    if (info->mNotify == NULL || !info->mOwnedByClient) {
+    if (info->mData == nullptr || !info->mOwnedByClient) {
         return -EACCES;
     }
 
     // synchronization boundary for getBufferAndFormat
+    sp<MediaCodecBuffer> buffer;
     {
         Mutex::Autolock al(mBufferLock);
         info->mOwnedByClient = false;
+        buffer = info->mData;
+        info->mData.clear();
     }
 
-    if (render && info->mData != NULL && info->mData->size() != 0) {
-        info->mNotify->setInt32("render", true);
-
+    if (render && buffer->size() != 0) {
         int64_t mediaTimeUs = -1;
-        info->mData->meta()->findInt64("timeUs", &mediaTimeUs);
+        buffer->meta()->findInt64("timeUs", &mediaTimeUs);
 
         int64_t renderTimeNs = 0;
         if (!msg->findInt64("timestampNs", &renderTimeNs)) {
@@ -2625,12 +2880,11 @@
             ALOGV("using buffer PTS of %lld", (long long)mediaTimeUs);
             renderTimeNs = mediaTimeUs * 1000;
         }
-        info->mNotify->setInt64("timestampNs", renderTimeNs);
 
         if (mSoftRenderer != NULL) {
             std::list<FrameRenderTracker::Info> doneFrames = mSoftRenderer->render(
-                    info->mData->data(), info->mData->size(),
-                    mediaTimeUs, renderTimeNs, NULL, info->mFormat);
+                    buffer->data(), buffer->size(),
+                    mediaTimeUs, renderTimeNs, NULL, buffer->format());
 
             // if we are running, notify rendered frames
             if (!doneFrames.empty() && mState == STARTED && mOnFrameRenderedNotification != NULL) {
@@ -2642,11 +2896,11 @@
                 }
             }
         }
+        mBufferChannel->renderOutputBuffer(buffer, renderTimeNs);
+    } else {
+        mBufferChannel->discardBuffer(buffer);
     }
 
-    info->mNotify->post();
-    info->mNotify = NULL;
-
     return OK;
 }
 
@@ -2662,20 +2916,20 @@
     size_t index = *availBuffers->begin();
     availBuffers->erase(availBuffers->begin());
 
-    BufferInfo *info = &mPortBuffers[portIndex].editItemAt(index);
+    BufferInfo *info = &mPortBuffers[portIndex][index];
     CHECK(!info->mOwnedByClient);
     {
         Mutex::Autolock al(mBufferLock);
         info->mOwnedByClient = true;
 
         // set image-data
-        if (info->mFormat != NULL) {
+        if (info->mData->format() != NULL) {
             sp<ABuffer> imageData;
-            if (info->mFormat->findBuffer("image-data", &imageData)) {
+            if (info->mData->format()->findBuffer("image-data", &imageData)) {
                 info->mData->meta()->setBuffer("image-data", imageData);
             }
             int32_t left, top, right, bottom;
-            if (info->mFormat->findRect("crop", &left, &top, &right, &bottom)) {
+            if (info->mData->format()->findRect("crop", &left, &top, &right, &bottom)) {
                 info->mData->meta()->setRect("crop-rect", left, top, right, bottom);
             }
         }
@@ -2696,7 +2950,7 @@
             return ALREADY_EXISTS;
         }
 
-        err = native_window_api_connect(surface.get(), NATIVE_WINDOW_API_MEDIA);
+        err = nativeWindowConnect(surface.get(), "connectToSurface");
         if (err == OK) {
             // Require a fresh set of buffers after each connect by using a unique generation
             // number. Rely on the fact that max supported process id by Linux is 2^22.
@@ -2711,12 +2965,12 @@
             // This is needed as the consumer may be holding onto stale frames that it can reattach
             // to this surface after disconnect/connect, and those free frames would inherit the new
             // generation number. Disconnecting after setting a unique generation prevents this.
-            native_window_api_disconnect(surface.get(), NATIVE_WINDOW_API_MEDIA);
-            err = native_window_api_connect(surface.get(), NATIVE_WINDOW_API_MEDIA);
+            nativeWindowDisconnect(surface.get(), "connectToSurface(reconnect)");
+            err = nativeWindowConnect(surface.get(), "connectToSurface(reconnect)");
         }
 
         if (err != OK) {
-            ALOGE("native_window_api_connect returned an error: %s (%d)", strerror(-err), err);
+            ALOGE("nativeWindowConnect returned an error: %s (%d)", strerror(-err), err);
         }
     }
     // do not return ALREADY_EXISTS unless surfaces are the same
@@ -2728,9 +2982,9 @@
     if (mSurface != NULL) {
         // Resetting generation is not technically needed, but there is no need to keep it either
         mSurface->setGenerationNumber(0);
-        err = native_window_api_disconnect(mSurface.get(), NATIVE_WINDOW_API_MEDIA);
+        err = nativeWindowDisconnect(mSurface.get(), "disconnectFromSurface");
         if (err != OK) {
-            ALOGW("native_window_api_disconnect returned an error: %s (%d)", strerror(-err), err);
+            ALOGW("nativeWindowDisconnect returned an error: %s (%d)", strerror(-err), err);
         }
         // assume disconnected even on error
         mSurface.clear();
@@ -2765,8 +3019,8 @@
 void MediaCodec::onOutputBufferAvailable() {
     int32_t index;
     while ((index = dequeuePortBuffer(kPortIndexOutput)) >= 0) {
-        const sp<ABuffer> &buffer =
-            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
+        const sp<MediaCodecBuffer> &buffer =
+            mPortBuffers[kPortIndexOutput][index].mData;
         sp<AMessage> msg = mCallback->dup();
         msg->setInt32("callbackID", CB_OUTPUT_AVAILABLE);
         msg->setInt32("index", index);
@@ -2778,19 +3032,8 @@
 
         msg->setInt64("timeUs", timeUs);
 
-        int32_t omxFlags;
-        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
-
-        uint32_t flags = 0;
-        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
-            flags |= BUFFER_FLAG_SYNCFRAME;
-        }
-        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
-            flags |= BUFFER_FLAG_CODECCONFIG;
-        }
-        if (omxFlags & OMX_BUFFERFLAG_EOS) {
-            flags |= BUFFER_FLAG_EOS;
-        }
+        int32_t flags;
+        CHECK(buffer->meta()->findInt32("flags", &flags));
 
         msg->setInt32("flags", flags);
 
@@ -2822,7 +3065,6 @@
     }
 }
 
-
 void MediaCodec::postActivityNotificationIfPossible() {
     if (mActivityNotify == NULL) {
         return;
@@ -2866,7 +3108,7 @@
 }
 
 status_t MediaCodec::amendOutputFormatWithCodecSpecificData(
-        const sp<ABuffer> &buffer) {
+        const sp<MediaCodecBuffer> &buffer) {
     AString mime;
     CHECK(mOutputFormat->findString("mime", &mime));
 
@@ -2900,7 +3142,10 @@
     } else {
         // For everything else we just stash the codec specific data into
         // the output format as a single piece of csd under "csd-0".
-        mOutputFormat->setBuffer("csd-0", buffer);
+        sp<ABuffer> csd = new ABuffer(buffer->size());
+        memcpy(csd->data(), buffer->data(), buffer->size());
+        csd->setRange(0, buffer->size());
+        mOutputFormat->setBuffer("csd-0", csd);
     }
 
     return OK;
@@ -2912,10 +3157,10 @@
     }
 
     if (mState == CONFIGURED && !mBatteryStatNotified) {
-        BatteryNotifier::getInstance().noteStartVideo();
+        BatteryNotifier::getInstance().noteStartVideo(mUid);
         mBatteryStatNotified = true;
     } else if (mState == UNINITIALIZED && mBatteryStatNotified) {
-        BatteryNotifier::getInstance().noteStopVideo();
+        BatteryNotifier::getInstance().noteStopVideo(mUid);
         mBatteryStatNotified = false;
     }
 }
diff --git a/media/libstagefright/MediaCodecList.cpp b/media/libstagefright/MediaCodecList.cpp
index 0fb5072..1dcba29 100644
--- a/media/libstagefright/MediaCodecList.cpp
+++ b/media/libstagefright/MediaCodecList.cpp
@@ -44,8 +44,6 @@
 
 namespace android {
 
-const char *kMaxEncoderInputBuffers = "max-video-encoder-input-buffers";
-
 static Mutex sInitMutex;
 
 static bool parseBoolean(const char *s) {
@@ -171,18 +169,47 @@
     return sRemoteList;
 }
 
+// Treblized media codec list will be located in /odm/etc or /vendor/etc.
+static const char *kConfigLocationList[] =
+        {"/odm/etc", "/vendor/etc", "/etc"};
+static const int kConfigLocationListSize =
+        (sizeof(kConfigLocationList) / sizeof(kConfigLocationList[0]));
+
+#define MEDIA_CODECS_CONFIG_FILE_PATH_MAX_LENGTH 128
+
+static bool findMediaCodecListFileFullPath(const char *file_name, char *out_path) {
+    for (int i = 0; i < kConfigLocationListSize; i++) {
+        snprintf(out_path,
+                 MEDIA_CODECS_CONFIG_FILE_PATH_MAX_LENGTH,
+                 "%s/%s",
+                 kConfigLocationList[i],
+                 file_name);
+        struct stat file_stat;
+        if (stat(out_path, &file_stat) == 0 && S_ISREG(file_stat.st_mode)) {
+            return true;
+        }
+    }
+    return false;
+}
+
 MediaCodecList::MediaCodecList()
     : mInitCheck(NO_INIT),
       mUpdate(false),
       mGlobalSettings(new AMessage()) {
-    parseTopLevelXMLFile("/etc/media_codecs.xml");
-    parseTopLevelXMLFile("/etc/media_codecs_performance.xml", true/* ignore_errors */);
+    char config_file_path[MEDIA_CODECS_CONFIG_FILE_PATH_MAX_LENGTH];
+    if (findMediaCodecListFileFullPath("media_codecs.xml", config_file_path)) {
+        parseTopLevelXMLFile(config_file_path);
+    }
+    if (findMediaCodecListFileFullPath("media_codecs_performance.xml",
+                                       config_file_path)) {
+        parseTopLevelXMLFile(config_file_path, true/* ignore_errors */);
+    }
     parseTopLevelXMLFile(kProfilingResults, true/* ignore_errors */);
 }
 
 void MediaCodecList::parseTopLevelXMLFile(const char *codecs_xml, bool ignore_errors) {
     // get href_base
-    char *href_base_end = strrchr(codecs_xml, '/');
+    const char *href_base_end = strrchr(codecs_xml, '/');
     if (href_base_end != NULL) {
         mHrefBase = AString(codecs_xml, href_base_end - codecs_xml + 1);
     }
@@ -196,9 +223,7 @@
     if (mInitCheck != OK) {
         return;  // this may fail if IMediaPlayerService is not available.
     }
-    mOMX = client.interface();
     parseXMLFile(codecs_xml);
-    mOMX.clear();
 
     if (mInitCheck != OK) {
         if (ignore_errors) {
@@ -888,18 +913,18 @@
     return -ENOENT;
 }
 
-static status_t limitFoundMissingAttr(AString name, const char *attr, bool found = true) {
+static status_t limitFoundMissingAttr(const AString &name, const char *attr, bool found = true) {
     ALOGE("limit '%s' with %s'%s' attribute", name.c_str(),
             (found ? "" : "no "), attr);
     return -EINVAL;
 }
 
-static status_t limitError(AString name, const char *msg) {
+static status_t limitError(const AString &name, const char *msg) {
     ALOGE("limit '%s' %s", name.c_str(), msg);
     return -EINVAL;
 }
 
-static status_t limitInvalidAttr(AString name, const char *attr, AString value) {
+static status_t limitInvalidAttr(const AString &name, const char *attr, const AString &value) {
     ALOGE("limit '%s' with invalid '%s' attribute (%s)", name.c_str(),
             attr, value.c_str());
     return -EINVAL;
@@ -1165,13 +1190,15 @@
         CHECK(info != NULL);
         AString componentName = info->getCodecName();
 
-        if (!((flags & kHardwareCodecsOnly) && !isSoftwareCodec(componentName))) {
+        if ((flags & kHardwareCodecsOnly) && isSoftwareCodec(componentName)) {
+            ALOGV("skipping SW codec '%s'", componentName.c_str());
+        } else {
             matches->push(componentName);
             ALOGV("matching '%s'", componentName.c_str());
         }
     }
 
-    if (flags & kPreferSoftwareCodecs) {
+    if (flags & kPreferSoftwareCodecs || property_get_bool("debug.stagefright.swcodec", false)) {
         matches->sort(compareSoftwareCodecsFirst);
     }
 }
diff --git a/media/libstagefright/MediaCodecListOverrides.cpp b/media/libstagefright/MediaCodecListOverrides.cpp
index 4ec36b5..095fc6a 100644
--- a/media/libstagefright/MediaCodecListOverrides.cpp
+++ b/media/libstagefright/MediaCodecListOverrides.cpp
@@ -49,7 +49,7 @@
 static const int kMaxInstances = 32;
 
 // TODO: move MediaCodecInfo to C++. Until then, some temp methods to parse out info.
-static bool getMeasureSize(sp<MediaCodecInfo::Capabilities> caps, int32_t *width, int32_t *height) {
+static bool getMeasureSize(const sp<MediaCodecInfo::Capabilities> &caps, int32_t *width, int32_t *height) {
     AString sizeRange;
     if (!caps->getDetails()->findString("size-range", &sizeRange)) {
         return false;
@@ -72,7 +72,7 @@
     return (*width > 0) && (*height > 0);
 }
 
-static void getMeasureBitrate(sp<MediaCodecInfo::Capabilities> caps, int32_t *bitrate) {
+static void getMeasureBitrate(const sp<MediaCodecInfo::Capabilities> &caps, int32_t *bitrate) {
     // Until have native MediaCodecInfo, we cannot get bitrates based on profile/levels.
     // We use 200000 as default value for our measurement.
     *bitrate = 200000;
@@ -90,7 +90,7 @@
 }
 
 static sp<AMessage> getMeasureFormat(
-        bool isEncoder, AString mime, sp<MediaCodecInfo::Capabilities> caps) {
+        bool isEncoder, const AString &mime, const sp<MediaCodecInfo::Capabilities> &caps) {
     sp<AMessage> format = new AMessage();
     format->setString("mime", mime);
 
@@ -127,63 +127,8 @@
     return format;
 }
 
-static size_t doProfileEncoderInputBuffers(
-        AString name, AString mime, sp<MediaCodecInfo::Capabilities> caps) {
-    ALOGV("doProfileEncoderInputBuffers: name %s, mime %s", name.c_str(), mime.c_str());
-
-    sp<AMessage> format = getMeasureFormat(true /* isEncoder */, mime, caps);
-    if (format == NULL) {
-        return 0;
-    }
-
-    format->setInt32("color-format", OMX_COLOR_FormatAndroidOpaque);
-    ALOGV("doProfileEncoderInputBuffers: format %s", format->debugString().c_str());
-
-    status_t err = OK;
-    sp<ALooper> looper = new ALooper;
-    looper->setName("MediaCodec_looper");
-    looper->start(
-            false /* runOnCallingThread */, false /* canCallJava */, ANDROID_PRIORITY_AUDIO);
-
-    sp<MediaCodec> codec = MediaCodec::CreateByComponentName(looper, name.c_str(), &err);
-    if (err != OK) {
-        ALOGE("Failed to create codec: %s", name.c_str());
-        return 0;
-    }
-
-    err = codec->configure(format, NULL, NULL, MediaCodec::CONFIGURE_FLAG_ENCODE);
-    if (err != OK) {
-        ALOGE("Failed to configure codec: %s with mime: %s", name.c_str(), mime.c_str());
-        codec->release();
-        return 0;
-    }
-
-    sp<IGraphicBufferProducer> bufferProducer;
-    err = codec->createInputSurface(&bufferProducer);
-    if (err != OK) {
-        ALOGE("Failed to create surface: %s with mime: %s", name.c_str(), mime.c_str());
-        codec->release();
-        return 0;
-    }
-
-    int minUndequeued = 0;
-    err = bufferProducer->query(
-            NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &minUndequeued);
-    if (err != OK) {
-        ALOGE("Failed to query NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS");
-        minUndequeued = 0;
-    }
-
-    err = codec->release();
-    if (err != OK) {
-        ALOGW("Failed to release codec: %s with mime: %s", name.c_str(), mime.c_str());
-    }
-
-    return minUndequeued;
-}
-
 static size_t doProfileCodecs(
-        bool isEncoder, AString name, AString mime, sp<MediaCodecInfo::Capabilities> caps) {
+        bool isEncoder, const AString &name, const AString &mime, const sp<MediaCodecInfo::Capabilities> &caps) {
     sp<AMessage> format = getMeasureFormat(isEncoder, mime, caps);
     if (format == NULL) {
         return 0;
@@ -276,7 +221,6 @@
         bool forceToMeasure) {
     KeyedVector<AString, sp<MediaCodecInfo::Capabilities>> codecsNeedMeasure;
     AString supportMultipleSecureCodecs = "true";
-    size_t maxEncoderInputBuffers = 0;
     for (size_t i = 0; i < infos.size(); ++i) {
         const sp<MediaCodecInfo> info = infos[i];
         AString name = info->getCodecName();
@@ -319,25 +263,13 @@
                         supportMultipleSecureCodecs = "false";
                     }
                 }
-                if (info->isEncoder() && mimes[i].startsWith("video/")) {
-                    size_t encoderInputBuffers =
-                        doProfileEncoderInputBuffers(name, mimes[i], caps);
-                    if (encoderInputBuffers > maxEncoderInputBuffers) {
-                        maxEncoderInputBuffers = encoderInputBuffers;
-                    }
-                }
             }
         }
     }
-    if (maxEncoderInputBuffers > 0) {
-        char tmp[32];
-        sprintf(tmp, "%zu", maxEncoderInputBuffers);
-        global_results->add(kMaxEncoderInputBuffers, tmp);
-    }
     global_results->add(kPolicySupportsMultipleSecureCodecs, supportMultipleSecureCodecs);
 }
 
-static AString globalResultsToXml(const CodecSettings& results) {
+static AString globalResultsToXml(const CodecSettings &results) {
     AString ret;
     for (size_t i = 0; i < results.size(); ++i) {
         AString setting = AStringPrintf(
@@ -349,7 +281,7 @@
     return ret;
 }
 
-static AString codecResultsToXml(const KeyedVector<AString, CodecSettings>& results) {
+static AString codecResultsToXml(const KeyedVector<AString, CodecSettings> &results) {
     AString ret;
     for (size_t i = 0; i < results.size(); ++i) {
         AString name;
@@ -362,7 +294,7 @@
                               name.c_str(),
                               mime.c_str());
         ret.append(codec);
-        CodecSettings settings = results.valueAt(i);
+        const CodecSettings &settings = results.valueAt(i);
         for (size_t i = 0; i < settings.size(); ++i) {
             // WARNING: we assume all the settings are "Limit". Currently we have only one type
             // of setting in this case, which is "max-supported-instances".
@@ -379,9 +311,9 @@
 
 void exportResultsToXML(
         const char *fileName,
-        const CodecSettings& global_results,
-        const KeyedVector<AString, CodecSettings>& encoder_results,
-        const KeyedVector<AString, CodecSettings>& decoder_results) {
+        const CodecSettings &global_results,
+        const KeyedVector<AString, CodecSettings> &encoder_results,
+        const KeyedVector<AString, CodecSettings> &decoder_results) {
     if (global_results.size() == 0 && encoder_results.size() == 0 && decoder_results.size() == 0) {
         return;
     }
diff --git a/media/libstagefright/MediaCodecSource.cpp b/media/libstagefright/MediaCodecSource.cpp
index ea5ef06..bb20850 100644
--- a/media/libstagefright/MediaCodecSource.cpp
+++ b/media/libstagefright/MediaCodecSource.cpp
@@ -20,10 +20,10 @@
 
 #include <inttypes.h>
 
-#include <gui/IGraphicBufferConsumer.h>
 #include <gui/IGraphicBufferProducer.h>
 #include <gui/Surface.h>
 #include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
@@ -35,7 +35,6 @@
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
-#include <media/stagefright/PersistentSurface.h>
 #include <media/stagefright/Utils.h>
 
 namespace android {
@@ -47,7 +46,7 @@
 const int kStopTimeoutUs = 300000; // allow 1 sec for shutting down encoder
 
 struct MediaCodecSource::Puller : public AHandler {
-    Puller(const sp<MediaSource> &source);
+    explicit Puller(const sp<MediaSource> &source);
 
     void interruptSource();
     status_t start(const sp<MetaData> &meta, const sp<AMessage> &notify);
@@ -325,10 +324,10 @@
         const sp<ALooper> &looper,
         const sp<AMessage> &format,
         const sp<MediaSource> &source,
-        const sp<IGraphicBufferConsumer> &consumer,
+        const sp<PersistentSurface> &persistentSurface,
         uint32_t flags) {
-    sp<MediaCodecSource> mediaSource =
-            new MediaCodecSource(looper, format, source, consumer, flags);
+    sp<MediaCodecSource> mediaSource = new MediaCodecSource(
+            looper, format, source, persistentSurface, flags);
 
     if (mediaSource->init() == OK) {
         return mediaSource;
@@ -364,8 +363,20 @@
     return postSynchronouslyAndReturnError(msg);
 }
 
-status_t MediaCodecSource::pause() {
-    (new AMessage(kWhatPause, mReflector))->post();
+
+status_t MediaCodecSource::setStopStimeUs(int64_t stopTimeUs) {
+    if (!(mFlags & FLAG_USE_SURFACE_INPUT)) {
+        return OK;
+    }
+    sp<AMessage> msg = new AMessage(kWhatSetStopTimeOffset, mReflector);
+    msg->setInt64("stop-time-us", stopTimeUs);
+    return postSynchronouslyAndReturnError(msg);
+}
+
+status_t MediaCodecSource::pause(MetaData* params) {
+    sp<AMessage> msg = new AMessage(kWhatPause, mReflector);
+    msg->setObject("meta", params);
+    msg->post();
     return OK;
 }
 
@@ -404,7 +415,7 @@
         const sp<ALooper> &looper,
         const sp<AMessage> &outputFormat,
         const sp<MediaSource> &source,
-        const sp<IGraphicBufferConsumer> &consumer,
+        const sp<PersistentSurface> &persistentSurface,
         uint32_t flags)
     : mLooper(looper),
       mOutputFormat(outputFormat),
@@ -417,7 +428,7 @@
       mSetEncoderFormat(false),
       mEncoderFormat(0),
       mEncoderDataSpace(0),
-      mGraphicBufferConsumer(consumer),
+      mPersistentSurface(persistentSurface),
       mInputBufferTimeOffsetUs(0),
       mFirstSampleSystemTimeUs(-1ll),
       mPausePending(false),
@@ -514,12 +525,11 @@
     if (mFlags & FLAG_USE_SURFACE_INPUT) {
         CHECK(mIsVideo);
 
-        if (mGraphicBufferConsumer != NULL) {
+        if (mPersistentSurface != NULL) {
             // When using persistent surface, we are only interested in the
             // consumer, but have to use PersistentSurface as a wrapper to
             // pass consumer over messages (similar to BufferProducerWrapper)
-            err = mEncoder->setInputSurface(
-                    new PersistentSurface(NULL, mGraphicBufferConsumer));
+            err = mEncoder->setInputSurface(mPersistentSurface);
         } else {
             err = mEncoder->createInputSurface(&mGraphicBufferProducer);
         }
@@ -626,22 +636,13 @@
     }
 }
 
-void MediaCodecSource::suspend() {
-    CHECK(mFlags & FLAG_USE_SURFACE_INPUT);
-    if (mEncoder != NULL) {
-        sp<AMessage> params = new AMessage;
-        params->setInt32("drop-input-frames", true);
-        mEncoder->setParameters(params);
-    }
-}
-
-void MediaCodecSource::resume(int64_t skipFramesBeforeUs) {
+void MediaCodecSource::resume(int64_t resumeStartTimeUs) {
     CHECK(mFlags & FLAG_USE_SURFACE_INPUT);
     if (mEncoder != NULL) {
         sp<AMessage> params = new AMessage;
         params->setInt32("drop-input-frames", false);
-        if (skipFramesBeforeUs > 0) {
-            params->setInt64("skip-frames-before", skipFramesBeforeUs);
+        if (resumeStartTimeUs > 0) {
+            params->setInt64("drop-start-time-us", resumeStartTimeUs);
         }
         mEncoder->setParameters(params);
     }
@@ -663,7 +664,7 @@
                 mFirstSampleSystemTimeUs = systemTime() / 1000;
                 if (mPausePending) {
                     mPausePending = false;
-                    onPause();
+                    onPause(mFirstSampleSystemTimeUs);
                     mbuf->release();
                     mAvailEncoderInputIndices.push_back(bufferIndex);
                     return OK;
@@ -689,9 +690,11 @@
 #endif // DEBUG_DRIFT_TIME
             }
 
-            sp<ABuffer> inbuf;
+            sp<MediaCodecBuffer> inbuf;
             status_t err = mEncoder->getInputBuffer(bufferIndex, &inbuf);
-            if (err != OK || inbuf == NULL) {
+
+            if (err != OK || inbuf == NULL || inbuf->data() == NULL
+                    || mbuf->data() == NULL || mbuf->size() == 0) {
                 mbuf->release();
                 signalEOS();
                 break;
@@ -728,6 +731,10 @@
         ALOGE("Failed to start while we're stopping");
         return INVALID_OPERATION;
     }
+    int64_t startTimeUs;
+    if (params == NULL || !params->findInt64(kKeyTime, &startTimeUs)) {
+        startTimeUs = -1ll;
+    }
 
     if (mStarted) {
         ALOGI("MediaCodecSource (%s) resuming", mIsVideo ? "video" : "audio");
@@ -739,7 +746,7 @@
             mEncoder->requestIDRFrame();
         }
         if (mFlags & FLAG_USE_SURFACE_INPUT) {
-            resume();
+            resume(startTimeUs);
         } else {
             CHECK(mPuller != NULL);
             mPuller->resume();
@@ -752,11 +759,14 @@
     status_t err = OK;
 
     if (mFlags & FLAG_USE_SURFACE_INPUT) {
-        int64_t startTimeUs;
-        if (!params || !params->findInt64(kKeyTime, &startTimeUs)) {
-            startTimeUs = -1ll;
+        if (mEncoder != NULL) {
+            sp<AMessage> params = new AMessage;
+            params->setInt32("drop-input-frames", false);
+            if (startTimeUs >= 0) {
+                params->setInt64("skip-frames-before", startTimeUs);
+            }
+            mEncoder->setParameters(params);
         }
-        resume(startTimeUs);
     } else {
         CHECK(mPuller != NULL);
         sp<MetaData> meta = params;
@@ -781,9 +791,12 @@
     return OK;
 }
 
-void MediaCodecSource::onPause() {
-    if (mFlags & FLAG_USE_SURFACE_INPUT) {
-        suspend();
+void MediaCodecSource::onPause(int64_t pauseStartTimeUs) {
+    if ((mFlags & FLAG_USE_SURFACE_INPUT) && (mEncoder != NULL)) {
+        sp<AMessage> params = new AMessage;
+        params->setInt32("drop-input-frames", true);
+        params->setInt64("drop-start-time-us", pauseStartTimeUs);
+        mEncoder->setParameters(params);
     } else {
         CHECK(mPuller != NULL);
         mPuller->pause();
@@ -851,9 +864,10 @@
                 break;
             }
 
-            sp<ABuffer> outbuf;
+            sp<MediaCodecBuffer> outbuf;
             status_t err = mEncoder->getOutputBuffer(index, &outbuf);
-            if (err != OK || outbuf == NULL) {
+            if (err != OK || outbuf == NULL || outbuf->data() == NULL
+                || outbuf->size() == 0) {
                 signalEOS();
                 break;
             }
@@ -870,7 +884,7 @@
                             mFirstSampleSystemTimeUs = systemTime() / 1000;
                             if (mPausePending) {
                                 mPausePending = false;
-                                onPause();
+                                onPause(mFirstSampleSystemTimeUs);
                                 mbuf->release();
                                 break;
                             }
@@ -906,6 +920,7 @@
                 }
                 mbuf->meta_data()->setInt64(kKeyTime, timeUs);
             } else {
+                mbuf->meta_data()->setInt64(kKeyTime, 0ll);
                 mbuf->meta_data()->setInt32(kKeyIsCodecConfig, true);
             }
             if (flags & MediaCodec::BUFFER_FLAG_SYNCFRAME) {
@@ -925,6 +940,10 @@
             CHECK(msg->findInt32("err", &err));
             ALOGE("Encoder (%s) reported error : 0x%x",
                     mIsVideo ? "video" : "audio", err);
+            if (!(mFlags & FLAG_USE_SURFACE_INPUT)) {
+                mStopping = true;
+                mPuller->stop();
+            }
             signalEOS();
        }
        break;
@@ -998,6 +1017,7 @@
             ALOGV("source (%s) stopped", mIsVideo ? "video" : "audio");
         }
         signalEOS();
+        break;
     }
 
     case kWhatPause:
@@ -1005,7 +1025,14 @@
         if (mFirstSampleSystemTimeUs < 0) {
             mPausePending = true;
         } else {
-            onPause();
+            sp<RefBase> obj;
+            CHECK(msg->findObject("meta", &obj));
+            MetaData *params = static_cast<MetaData *>(obj.get());
+            int64_t pauseStartTimeUs = -1;
+            if (params == NULL || !params->findInt64(kKeyTime, &pauseStartTimeUs)) {
+                pauseStartTimeUs = -1ll;
+            }
+            onPause(pauseStartTimeUs);
         }
         break;
     }
@@ -1017,7 +1044,7 @@
         CHECK(msg->findInt64("time-offset-us", &mInputBufferTimeOffsetUs));
 
         // Propagate the timestamp offset to GraphicBufferSource.
-        if (mIsVideo) {
+        if (mFlags & FLAG_USE_SURFACE_INPUT) {
             sp<AMessage> params = new AMessage;
             params->setInt64("time-offset-us", mInputBufferTimeOffsetUs);
             err = mEncoder->setParameters(params);
@@ -1028,6 +1055,26 @@
         response->postReply(replyID);
         break;
     }
+    case kWhatSetStopTimeOffset:
+    {
+        sp<AReplyToken> replyID;
+        CHECK(msg->senderAwaitsResponse(&replyID));
+        status_t err = OK;
+        int64_t stopTimeUs;
+        CHECK(msg->findInt64("stop-time-us", &stopTimeUs));
+
+        // Propagate the timestamp offset to GraphicBufferSource.
+        if (mFlags & FLAG_USE_SURFACE_INPUT) {
+            sp<AMessage> params = new AMessage;
+            params->setInt64("stop-time-us", stopTimeUs);
+            err = mEncoder->setParameters(params);
+        }
+
+        sp<AMessage> response = new AMessage;
+        response->setInt32("err", err);
+        response->postReply(replyID);
+        break;
+    }
     case kWhatGetFirstSampleSystemTimeUs:
     {
         sp<AReplyToken> replyID;
diff --git a/media/libstagefright/MediaDefs.cpp b/media/libstagefright/MediaDefs.cpp
deleted file mode 100644
index 845462b..0000000
--- a/media/libstagefright/MediaDefs.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <media/stagefright/MediaDefs.h>
-
-namespace android {
-
-const char *MEDIA_MIMETYPE_IMAGE_JPEG = "image/jpeg";
-
-const char *MEDIA_MIMETYPE_VIDEO_VP8 = "video/x-vnd.on2.vp8";
-const char *MEDIA_MIMETYPE_VIDEO_VP9 = "video/x-vnd.on2.vp9";
-const char *MEDIA_MIMETYPE_VIDEO_AVC = "video/avc";
-const char *MEDIA_MIMETYPE_VIDEO_HEVC = "video/hevc";
-const char *MEDIA_MIMETYPE_VIDEO_MPEG4 = "video/mp4v-es";
-const char *MEDIA_MIMETYPE_VIDEO_H263 = "video/3gpp";
-const char *MEDIA_MIMETYPE_VIDEO_MPEG2 = "video/mpeg2";
-const char *MEDIA_MIMETYPE_VIDEO_RAW = "video/raw";
-const char *MEDIA_MIMETYPE_VIDEO_DOLBY_VISION = "video/dolby-vision";
-
-const char *MEDIA_MIMETYPE_AUDIO_AMR_NB = "audio/3gpp";
-const char *MEDIA_MIMETYPE_AUDIO_AMR_WB = "audio/amr-wb";
-const char *MEDIA_MIMETYPE_AUDIO_MPEG = "audio/mpeg";
-const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I = "audio/mpeg-L1";
-const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II = "audio/mpeg-L2";
-const char *MEDIA_MIMETYPE_AUDIO_MIDI = "audio/midi";
-const char *MEDIA_MIMETYPE_AUDIO_AAC = "audio/mp4a-latm";
-const char *MEDIA_MIMETYPE_AUDIO_QCELP = "audio/qcelp";
-const char *MEDIA_MIMETYPE_AUDIO_VORBIS = "audio/vorbis";
-const char *MEDIA_MIMETYPE_AUDIO_OPUS = "audio/opus";
-const char *MEDIA_MIMETYPE_AUDIO_G711_ALAW = "audio/g711-alaw";
-const char *MEDIA_MIMETYPE_AUDIO_G711_MLAW = "audio/g711-mlaw";
-const char *MEDIA_MIMETYPE_AUDIO_RAW = "audio/raw";
-const char *MEDIA_MIMETYPE_AUDIO_FLAC = "audio/flac";
-const char *MEDIA_MIMETYPE_AUDIO_AAC_ADTS = "audio/aac-adts";
-const char *MEDIA_MIMETYPE_AUDIO_MSGSM = "audio/gsm";
-const char *MEDIA_MIMETYPE_AUDIO_AC3 = "audio/ac3";
-const char *MEDIA_MIMETYPE_AUDIO_EAC3 = "audio/eac3";
-
-const char *MEDIA_MIMETYPE_CONTAINER_MPEG4 = "video/mp4";
-const char *MEDIA_MIMETYPE_CONTAINER_WAV = "audio/x-wav";
-const char *MEDIA_MIMETYPE_CONTAINER_OGG = "application/ogg";
-const char *MEDIA_MIMETYPE_CONTAINER_MATROSKA = "video/x-matroska";
-const char *MEDIA_MIMETYPE_CONTAINER_MPEG2TS = "video/mp2ts";
-const char *MEDIA_MIMETYPE_CONTAINER_AVI = "video/avi";
-const char *MEDIA_MIMETYPE_CONTAINER_MPEG2PS = "video/mp2p";
-
-const char *MEDIA_MIMETYPE_CONTAINER_WVM = "video/wvm";
-
-const char *MEDIA_MIMETYPE_TEXT_3GPP = "text/3gpp-tt";
-const char *MEDIA_MIMETYPE_TEXT_SUBRIP = "application/x-subrip";
-const char *MEDIA_MIMETYPE_TEXT_VTT = "text/vtt";
-const char *MEDIA_MIMETYPE_TEXT_CEA_608 = "text/cea-608";
-const char *MEDIA_MIMETYPE_TEXT_CEA_708 = "text/cea-708";
-const char *MEDIA_MIMETYPE_DATA_TIMED_ID3 = "application/x-id3v4";
-
-}  // namespace android
diff --git a/media/libstagefright/MediaExtractor.cpp b/media/libstagefright/MediaExtractor.cpp
index 92ce88c..c91c82b 100644
--- a/media/libstagefright/MediaExtractor.cpp
+++ b/media/libstagefright/MediaExtractor.cpp
@@ -27,8 +27,6 @@
 #include "include/OggExtractor.h"
 #include "include/MPEG2PSExtractor.h"
 #include "include/MPEG2TSExtractor.h"
-#include "include/DRMExtractor.h"
-#include "include/WVMExtractor.h"
 #include "include/FLACExtractor.h"
 #include "include/AACExtractor.h"
 #include "include/MidiExtractor.h"
@@ -38,6 +36,7 @@
 #include <binder/IServiceManager.h>
 #include <binder/MemoryDealer.h>
 
+#include <media/MediaAnalyticsItem.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/DataSource.h>
@@ -49,136 +48,92 @@
 #include <utils/String8.h>
 #include <private/android_filesystem_config.h>
 
+// still doing some on/off toggling here.
+#define MEDIA_LOG       1
+
 
 namespace android {
 
-MediaExtractor::MediaExtractor():
-    mIsDrm(false) {
+// key for media statistics
+static const char *kKeyExtractor = "extractor";
+// attrs for media statistics
+static const char *kExtractorMime = "android.media.mediaextractor.mime";
+static const char *kExtractorTracks = "android.media.mediaextractor.ntrk";
+static const char *kExtractorFormat = "android.media.mediaextractor.fmt";
+
+MediaExtractor::MediaExtractor() {
     if (!LOG_NDEBUG) {
         uid_t uid = getuid();
         struct passwd *pw = getpwuid(uid);
         ALOGI("extractor created in uid: %d (%s)", getuid(), pw->pw_name);
     }
 
+    mAnalyticsItem = NULL;
+    if (MEDIA_LOG) {
+        mAnalyticsItem = new MediaAnalyticsItem(kKeyExtractor);
+        (void) mAnalyticsItem->generateSessionID();
+    }
 }
 
+MediaExtractor::~MediaExtractor() {
+
+    // log the current record, provided it has some information worth recording
+    if (MEDIA_LOG) {
+        if (mAnalyticsItem != NULL) {
+            if (mAnalyticsItem->count() > 0) {
+                mAnalyticsItem->setFinalized(true);
+                mAnalyticsItem->selfrecord();
+            }
+        }
+    }
+    if (mAnalyticsItem != NULL) {
+        delete mAnalyticsItem;
+        mAnalyticsItem = NULL;
+    }
+}
 
 sp<MetaData> MediaExtractor::getMetaData() {
     return new MetaData;
 }
 
+status_t MediaExtractor::getMetrics(Parcel *reply) {
+
+    if (mAnalyticsItem == NULL || reply == NULL) {
+        return UNKNOWN_ERROR;
+    }
+
+    populateMetrics();
+    mAnalyticsItem->writeToParcel(reply);
+
+    return OK;
+}
+
+void MediaExtractor::populateMetrics() {
+    ALOGV("MediaExtractor::populateMetrics");
+    // normally overridden in subclasses
+}
+
 uint32_t MediaExtractor::flags() const {
     return CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_PAUSE | CAN_SEEK;
 }
 
-
-
-class RemoteDataSource : public BnDataSource {
-public:
-    enum {
-        kBufferSize = 64 * 1024,
-    };
-
-    static sp<IDataSource> wrap(const sp<DataSource> &source);
-    virtual ~RemoteDataSource();
-
-    virtual sp<IMemory> getIMemory();
-    virtual ssize_t readAt(off64_t offset, size_t size);
-    virtual status_t getSize(off64_t* size);
-    virtual void close();
-    virtual uint32_t getFlags();
-    virtual String8 toString();
-    virtual sp<DecryptHandle> DrmInitialization(const char *mime);
-
-private:
-    sp<IMemory> mMemory;
-    sp<DataSource> mSource;
-    String8 mName;
-    RemoteDataSource(const sp<DataSource> &source);
-    DISALLOW_EVIL_CONSTRUCTORS(RemoteDataSource);
-};
-
-
-sp<IDataSource> RemoteDataSource::wrap(const sp<DataSource> &source) {
-    return new RemoteDataSource(source);
-}
-RemoteDataSource::RemoteDataSource(const sp<DataSource> &source) {
-    mSource = source;
-    sp<MemoryDealer> memoryDealer = new MemoryDealer(kBufferSize, "RemoteDataSource");
-    mMemory = memoryDealer->allocate(kBufferSize);
-    if (mMemory == NULL) {
-        ALOGE("Failed to allocate memory!");
-    }
-    mName = String8::format("RemoteDataSource(%s)", mSource->toString().string());
-}
-RemoteDataSource::~RemoteDataSource() {
-    close();
-}
-sp<IMemory> RemoteDataSource::getIMemory() {
-    return mMemory;
-}
-ssize_t RemoteDataSource::readAt(off64_t offset, size_t size) {
-    ALOGV("readAt(%" PRId64 ", %zu)", offset, size);
-    return mSource->readAt(offset, mMemory->pointer(), size);
-}
-status_t RemoteDataSource::getSize(off64_t* size) {
-    return mSource->getSize(size);
-}
-void RemoteDataSource::close() {
-    mSource = NULL;
-}
-uint32_t RemoteDataSource::getFlags() {
-    return mSource->flags();
-}
-
-String8 RemoteDataSource::toString() {
-    return mName;
-}
-
-sp<DecryptHandle> RemoteDataSource::DrmInitialization(const char *mime) {
-    return mSource->DrmInitialization(mime);
-}
-
 // static
 sp<IMediaExtractor> MediaExtractor::Create(
         const sp<DataSource> &source, const char *mime) {
     ALOGV("MediaExtractor::Create %s", mime);
 
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("media.stagefright.extractremote", value, NULL)
-            && (!strcmp("0", value) || !strcasecmp("false", value))) {
+    if (!property_get_bool("media.stagefright.extractremote", true)) {
         // local extractor
         ALOGW("creating media extractor in calling process");
         return CreateFromService(source, mime);
     } else {
-        // Check if it's WVM, since WVMExtractor needs to be created in the media server process,
-        // not the extractor process.
-        String8 mime8;
-        float confidence;
-        sp<AMessage> meta;
-        if (SniffWVM(source, &mime8, &confidence, &meta) &&
-                !strcasecmp(mime8, MEDIA_MIMETYPE_CONTAINER_WVM)) {
-            return new WVMExtractor(source);
-        }
-
-        // Check if it's es-based DRM, since DRMExtractor needs to be created in the media server
-        // process, not the extractor process.
-        if (SniffDRM(source, &mime8, &confidence, &meta)) {
-            const char *drmMime = mime8.string();
-            ALOGV("Detected media content as '%s' with confidence %.2f", drmMime, confidence);
-            if (!strncmp(drmMime, "drm+es_based+", 13)) {
-                // DRMExtractor sets container metadata kKeyIsDRM to 1
-                return new DRMExtractor(source, drmMime + 14);
-            }
-        }
-
         // remote extractor
         ALOGV("get service manager");
         sp<IBinder> binder = defaultServiceManager()->getService(String16("media.extractor"));
 
         if (binder != 0) {
             sp<IMediaExtractorService> mediaExService(interface_cast<IMediaExtractorService>(binder));
-            sp<IMediaExtractor> ex = mediaExService->makeExtractor(RemoteDataSource::wrap(source), mime);
+            sp<IMediaExtractor> ex = mediaExService->makeExtractor(source->asIDataSource(), mime);
             return ex;
         } else {
             ALOGE("extractor service not running");
@@ -192,15 +147,18 @@
         const sp<DataSource> &source, const char *mime) {
 
     ALOGV("MediaExtractor::CreateFromService %s", mime);
-    DataSource::RegisterDefaultSniffers();
+    RegisterDefaultSniffers();
+
+    // initialize source decryption if needed
+    source->DrmInitialization(nullptr /* mime */);
 
     sp<AMessage> meta;
 
     String8 tmp;
     if (mime == NULL) {
         float confidence;
-        if (!source->sniff(&tmp, &confidence, &meta)) {
-            ALOGV("FAILED to autodetect media content.");
+        if (!sniff(source, &tmp, &confidence, &meta)) {
+            ALOGW("FAILED to autodetect media content.");
 
             return NULL;
         }
@@ -210,28 +168,6 @@
              mime, confidence);
     }
 
-    bool isDrm = false;
-    // DRM MIME type syntax is "drm+type+original" where
-    // type is "es_based" or "container_based" and
-    // original is the content's cleartext MIME type
-    if (!strncmp(mime, "drm+", 4)) {
-        const char *originalMime = strchr(mime+4, '+');
-        if (originalMime == NULL) {
-            // second + not found
-            return NULL;
-        }
-        ++originalMime;
-        if (!strncmp(mime, "drm+es_based+", 13)) {
-            // DRMExtractor sets container metadata kKeyIsDRM to 1
-            return new DRMExtractor(source, originalMime);
-        } else if (!strncmp(mime, "drm+container_based+", 20)) {
-            mime = originalMime;
-            isDrm = true;
-        } else {
-            return NULL;
-        }
-    }
-
     MediaExtractor *ret = NULL;
     if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4)
             || !strcasecmp(mime, "audio/mp4")) {
@@ -251,9 +187,6 @@
         ret = new MatroskaExtractor(source);
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2TS)) {
         ret = new MPEG2TSExtractor(source);
-    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WVM) && getuid() == AID_MEDIA) {
-        // Return now.  WVExtractor should not have the DrmFlag set in the block below.
-        return new WVMExtractor(source);
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC_ADTS)) {
         ret = new AACExtractor(source, meta);
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2PS)) {
@@ -263,14 +196,100 @@
     }
 
     if (ret != NULL) {
-       if (isDrm) {
-           ret->setDrmFlag(true);
-       } else {
-           ret->setDrmFlag(false);
+       // track the container format (mpeg, aac, wvm, etc)
+       if (MEDIA_LOG) {
+          if (ret->mAnalyticsItem != NULL) {
+              size_t ntracks = ret->countTracks();
+              ret->mAnalyticsItem->setCString(kExtractorFormat,  ret->name());
+              // tracks (size_t)
+              ret->mAnalyticsItem->setInt32(kExtractorTracks,  ntracks);
+              // metadata
+              sp<MetaData> pMetaData = ret->getMetaData();
+              if (pMetaData != NULL) {
+                String8 xx = pMetaData->toString();
+                // 'titl' -- but this verges into PII
+                // 'mime'
+                const char *mime = NULL;
+                if (pMetaData->findCString(kKeyMIMEType, &mime)) {
+                    ret->mAnalyticsItem->setCString(kExtractorMime,  mime);
+                }
+                // what else is interesting and not already available?
+              }
+	  }
        }
     }
 
     return ret;
 }
 
+Mutex MediaExtractor::gSnifferMutex;
+List<MediaExtractor::SnifferFunc> MediaExtractor::gSniffers;
+bool MediaExtractor::gSniffersRegistered = false;
+
+// static
+bool MediaExtractor::sniff(
+        const sp<DataSource> &source, String8 *mimeType, float *confidence, sp<AMessage> *meta) {
+    *mimeType = "";
+    *confidence = 0.0f;
+    meta->clear();
+
+    {
+        Mutex::Autolock autoLock(gSnifferMutex);
+        if (!gSniffersRegistered) {
+            return false;
+        }
+    }
+
+    for (List<SnifferFunc>::iterator it = gSniffers.begin();
+         it != gSniffers.end(); ++it) {
+        String8 newMimeType;
+        float newConfidence;
+        sp<AMessage> newMeta;
+        if ((*it)(source, &newMimeType, &newConfidence, &newMeta)) {
+            if (newConfidence > *confidence) {
+                *mimeType = newMimeType;
+                *confidence = newConfidence;
+                *meta = newMeta;
+            }
+        }
+    }
+
+    return *confidence > 0.0;
+}
+
+// static
+void MediaExtractor::RegisterSniffer_l(SnifferFunc func) {
+    for (List<SnifferFunc>::iterator it = gSniffers.begin();
+         it != gSniffers.end(); ++it) {
+        if (*it == func) {
+            return;
+        }
+    }
+
+    gSniffers.push_back(func);
+}
+
+// static
+void MediaExtractor::RegisterDefaultSniffers() {
+    Mutex::Autolock autoLock(gSnifferMutex);
+    if (gSniffersRegistered) {
+        return;
+    }
+
+    RegisterSniffer_l(SniffMPEG4);
+    RegisterSniffer_l(SniffMatroska);
+    RegisterSniffer_l(SniffOgg);
+    RegisterSniffer_l(SniffWAV);
+    RegisterSniffer_l(SniffFLAC);
+    RegisterSniffer_l(SniffAMR);
+    RegisterSniffer_l(SniffMPEG2TS);
+    RegisterSniffer_l(SniffMP3);
+    RegisterSniffer_l(SniffAAC);
+    RegisterSniffer_l(SniffMPEG2PS);
+    RegisterSniffer_l(SniffMidi);
+
+    gSniffersRegistered = true;
+}
+
+
 }  // namespace android
diff --git a/media/libstagefright/MediaMuxer.cpp b/media/libstagefright/MediaMuxer.cpp
index b13877d..c7b8888 100644
--- a/media/libstagefright/MediaMuxer.cpp
+++ b/media/libstagefright/MediaMuxer.cpp
@@ -41,7 +41,7 @@
 MediaMuxer::MediaMuxer(int fd, OutputFormat format)
     : mFormat(format),
       mState(UNINITIALIZED) {
-    if (format == OUTPUT_FORMAT_MPEG_4) {
+    if (format == OUTPUT_FORMAT_MPEG_4 || format == OUTPUT_FORMAT_THREE_GPP) {
         mWriter = new MPEG4Writer(fd);
     } else if (format == OUTPUT_FORMAT_WEBM) {
         mWriter = new WebmWriter(fd);
@@ -108,8 +108,8 @@
         ALOGE("setLocation() must be called before start().");
         return INVALID_OPERATION;
     }
-    if (mFormat != OUTPUT_FORMAT_MPEG_4) {
-        ALOGE("setLocation() is only supported for .mp4 output.");
+    if (mFormat != OUTPUT_FORMAT_MPEG_4 && mFormat != OUTPUT_FORMAT_THREE_GPP) {
+        ALOGE("setLocation() is only supported for .mp4 pr .3gp output.");
         return INVALID_OPERATION;
     }
 
diff --git a/media/libstagefright/MediaSync.cpp b/media/libstagefright/MediaSync.cpp
index 6f2d868..0cf6fbf 100644
--- a/media/libstagefright/MediaSync.cpp
+++ b/media/libstagefright/MediaSync.cpp
@@ -478,59 +478,43 @@
     CHECK(mAudioTrack != NULL);
 
     uint32_t numFramesPlayed;
-    int64_t numFramesPlayedAt;
+    int64_t numFramesPlayedAtUs;
     AudioTimestamp ts;
-    static const int64_t kStaleTimestamp100ms = 100000;
 
     status_t res = mAudioTrack->getTimestamp(ts);
     if (res == OK) {
         // case 1: mixing audio tracks.
         numFramesPlayed = ts.mPosition;
-        numFramesPlayedAt =
-            ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000;
-        const int64_t timestampAge = nowUs - numFramesPlayedAt;
-        if (timestampAge > kStaleTimestamp100ms) {
-            // This is an audio FIXME.
-            // getTimestamp returns a timestamp which may come from audio
-            // mixing threads. After pausing, the MixerThread may go idle,
-            // thus the mTime estimate may become stale. Assuming that the
-            // MixerThread runs 20ms, with FastMixer at 5ms, the max latency
-            // should be about 25ms with an average around 12ms (to be
-            // verified). For safety we use 100ms.
-            ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) "
-                  "numFramesPlayedAt(%lld)",
-                  (long long)nowUs, (long long)numFramesPlayedAt);
-            numFramesPlayedAt = nowUs - kStaleTimestamp100ms;
-        }
+        numFramesPlayedAtUs = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000;
         //ALOGD("getTimestamp: OK %d %lld",
-        //      numFramesPlayed, (long long)numFramesPlayedAt);
+        //      numFramesPlayed, (long long)numFramesPlayedAtUs);
     } else if (res == WOULD_BLOCK) {
         // case 2: transitory state on start of a new track
         numFramesPlayed = 0;
-        numFramesPlayedAt = nowUs;
+        numFramesPlayedAtUs = nowUs;
         //ALOGD("getTimestamp: WOULD_BLOCK %d %lld",
-        //      numFramesPlayed, (long long)numFramesPlayedAt);
+        //      numFramesPlayed, (long long)numFramesPlayedAtUs);
     } else {
         // case 3: transitory at new track or audio fast tracks.
         res = mAudioTrack->getPosition(&numFramesPlayed);
         CHECK_EQ(res, (status_t)OK);
-        numFramesPlayedAt = nowUs;
-        numFramesPlayedAt += 1000LL * mAudioTrack->latency() / 2; /* XXX */
-        //ALOGD("getPosition: %d %lld", numFramesPlayed, (long long)numFramesPlayedAt);
+        numFramesPlayedAtUs = nowUs;
+        numFramesPlayedAtUs += 1000LL * mAudioTrack->latency() / 2; /* XXX */
+        //ALOGD("getPosition: %d %lld", numFramesPlayed, (long long)numFramesPlayedAtUs);
     }
 
     //can't be negative until 12.4 hrs, test.
     //CHECK_EQ(numFramesPlayed & (1 << 31), 0);
     int64_t durationUs =
         getDurationIfPlayedAtNativeSampleRate_l(numFramesPlayed)
-            + nowUs - numFramesPlayedAt;
+            + nowUs - numFramesPlayedAtUs;
     if (durationUs < 0) {
         // Occurs when numFramesPlayed position is very small and the following:
         // (1) In case 1, the time nowUs is computed before getTimestamp() is
-        //     called and numFramesPlayedAt is greater than nowUs by time more
+        //     called and numFramesPlayedAtUs is greater than nowUs by time more
         //     than numFramesPlayed.
         // (2) In case 3, using getPosition and adding mAudioTrack->latency()
-        //     to numFramesPlayedAt, by a time amount greater than
+        //     to numFramesPlayedAtUs, by a time amount greater than
         //     numFramesPlayed.
         //
         // Both of these are transitory conditions.
@@ -541,7 +525,7 @@
     ALOGV("getPlayedOutAudioDurationMedia_l(%lld) nowUs(%lld) frames(%u) "
           "framesAt(%lld)",
           (long long)durationUs, (long long)nowUs, numFramesPlayed,
-          (long long)numFramesPlayedAt);
+          (long long)numFramesPlayedAtUs);
     return durationUs;
 }
 
diff --git a/media/libstagefright/NuCachedSource2.cpp b/media/libstagefright/NuCachedSource2.cpp
index 453db03..afd6ffb 100644
--- a/media/libstagefright/NuCachedSource2.cpp
+++ b/media/libstagefright/NuCachedSource2.cpp
@@ -31,7 +31,7 @@
 namespace android {
 
 struct PageCache {
-    PageCache(size_t pageSize);
+    explicit PageCache(size_t pageSize);
     ~PageCache();
 
     struct Page {
diff --git a/media/libstagefright/NuMediaExtractor.cpp b/media/libstagefright/NuMediaExtractor.cpp
index 4558b3c..51f1ba3 100644
--- a/media/libstagefright/NuMediaExtractor.cpp
+++ b/media/libstagefright/NuMediaExtractor.cpp
@@ -22,7 +22,6 @@
 
 #include "include/ESDS.h"
 #include "include/NuCachedSource2.h"
-#include "include/WVMExtractor.h"
 
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -36,12 +35,12 @@
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
+#include <android/media/ICas.h>
 
 namespace android {
 
 NuMediaExtractor::NuMediaExtractor()
-    : mIsWidevineExtractor(false),
-      mTotalBitrate(-1ll),
+    : mTotalBitrate(-1ll),
       mDurationUs(-1ll) {
 }
 
@@ -51,7 +50,8 @@
     for (size_t i = 0; i < mSelectedTracks.size(); ++i) {
         TrackInfo *info = &mSelectedTracks.editItemAt(i);
 
-        CHECK_EQ((status_t)OK, info->mSource->stop());
+        status_t err = info->mSource->stop();
+        ALOGE_IF(err != OK, "error %d stopping track %zu", err, i);
     }
 
     mSelectedTracks.clear();
@@ -66,7 +66,7 @@
         const KeyedVector<String8, String8> *headers) {
     Mutex::Autolock autoLock(mLock);
 
-    if (mImpl != NULL) {
+    if (mImpl != NULL || path == NULL) {
         return -EINVAL;
     }
 
@@ -77,51 +77,14 @@
         return -ENOENT;
     }
 
-    mIsWidevineExtractor = false;
-    if (!strncasecmp("widevine://", path, 11)) {
-        String8 mimeType;
-        float confidence;
-        sp<AMessage> dummy;
-        bool success = SniffWVM(dataSource, &mimeType, &confidence, &dummy);
-
-        if (!success
-                || strcasecmp(
-                    mimeType.string(), MEDIA_MIMETYPE_CONTAINER_WVM)) {
-            return ERROR_UNSUPPORTED;
-        }
-
-        sp<WVMExtractor> extractor = new WVMExtractor(dataSource);
-        extractor->setAdaptiveStreamingMode(true);
-
-        mImpl = extractor;
-        mIsWidevineExtractor = true;
-    } else {
-        mImpl = MediaExtractor::Create(dataSource);
-    }
+    mImpl = MediaExtractor::Create(dataSource);
 
     if (mImpl == NULL) {
         return ERROR_UNSUPPORTED;
     }
 
-    sp<MetaData> fileMeta = mImpl->getMetaData();
-    const char *containerMime;
-    if (fileMeta != NULL
-            && fileMeta->findCString(kKeyMIMEType, &containerMime)
-            && !strcasecmp(containerMime, "video/wvm")) {
-        // We always want to use "cryptoPluginMode" when using the wvm
-        // extractor. We can tell that it is this extractor by looking
-        // at the container mime type.
-        // The cryptoPluginMode ensures that the extractor will actually
-        // give us data in a call to MediaSource::read(), unlike its
-        // default mode that we used in AwesomePlayer.
-        // TODO: change default mode
-        static_cast<WVMExtractor *>(mImpl.get())->setCryptoPluginMode(true);
-    } else if (mImpl->getDrmFlag()) {
-        // For all other drm content, we don't want to expose decrypted
-        // content to Java application.
-        mImpl.clear();
-        mImpl = NULL;
-        return ERROR_UNSUPPORTED;
+    if (mCas != NULL) {
+        mImpl->setMediaCas(mCas);
     }
 
     status_t err = updateDurationAndBitrate();
@@ -156,6 +119,10 @@
         return ERROR_UNSUPPORTED;
     }
 
+    if (mCas != NULL) {
+        mImpl->setMediaCas(mCas);
+    }
+
     err = updateDurationAndBitrate();
     if (err == OK) {
         mDataSource = fileSource;
@@ -182,6 +149,10 @@
         return ERROR_UNSUPPORTED;
     }
 
+    if (mCas != NULL) {
+        mImpl->setMediaCas(mCas);
+    }
+
     err = updateDurationAndBitrate();
     if (err == OK) {
         mDataSource = source;
@@ -190,6 +161,27 @@
     return err;
 }
 
+status_t NuMediaExtractor::setMediaCas(const sp<ICas> &cas) {
+    ALOGV("setMediaCas: cas=%p", cas.get());
+
+    Mutex::Autolock autoLock(mLock);
+
+    if (cas == NULL) {
+        return BAD_VALUE;
+    }
+
+    if (mImpl != NULL) {
+        mImpl->setMediaCas(cas);
+        status_t err = updateDurationAndBitrate();
+        if (err != OK) {
+            return err;
+        }
+    }
+
+    mCas = cas;
+    return OK;
+}
+
 status_t NuMediaExtractor::updateDurationAndBitrate() {
     if (mImpl->countTracks() > kMaxTrackCount) {
         return ERROR_UNSUPPORTED;
@@ -305,6 +297,10 @@
 
     sp<IMediaSource> source = mImpl->getTrack(index);
 
+    if (source == nullptr) {
+        return ERROR_MALFORMED;
+    }
+
     status_t ret = source->start();
     if (ret != OK) {
         return ret;
@@ -611,6 +607,11 @@
     return OK;
 }
 
+status_t NuMediaExtractor::getMetrics(Parcel *reply) {
+    status_t status = mImpl->getMetrics(reply);
+    return status;
+}
+
 bool NuMediaExtractor::getTotalBitrate(int64_t *bitrate) const {
     if (mTotalBitrate >= 0) {
         *bitrate = mTotalBitrate;
@@ -632,15 +633,7 @@
     Mutex::Autolock autoLock(mLock);
 
     int64_t bitrate;
-    if (mIsWidevineExtractor) {
-        sp<WVMExtractor> wvmExtractor =
-            static_cast<WVMExtractor *>(mImpl.get());
-
-        status_t finalStatus;
-        *durationUs = wvmExtractor->getCachedDurationUs(&finalStatus);
-        *eos = (finalStatus != OK);
-        return true;
-    } else if ((mDataSource->flags() & DataSource::kIsCachingDataSource)
+    if ((mDataSource->flags() & DataSource::kIsCachingDataSource)
             && getTotalBitrate(&bitrate)) {
         sp<NuCachedSource2> cachedSource =
             static_cast<NuCachedSource2 *>(mDataSource.get());
diff --git a/media/libstagefright/OMXClient.cpp b/media/libstagefright/OMXClient.cpp
index e40dbcf..5f9aa01 100644
--- a/media/libstagefright/OMXClient.cpp
+++ b/media/libstagefright/OMXClient.cpp
@@ -22,508 +22,40 @@
 #endif
 
 #include <utils/Log.h>
+#include <cutils/properties.h>
 
 #include <binder/IServiceManager.h>
-#include <media/IMediaPlayerService.h>
 #include <media/IMediaCodecService.h>
-#include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/OMXClient.h>
-#include <cutils/properties.h>
-#include <utils/KeyedVector.h>
 
-#include "include/OMX.h"
+#include <media/IOMX.h>
+
+#include <media/omx/1.0/WOmx.h>
 
 namespace android {
 
-static bool sCodecProcessEnabled = true;
-
-struct MuxOMX : public IOMX {
-    MuxOMX(const sp<IOMX> &mediaServerOMX, const sp<IOMX> &mediaCodecOMX);
-    virtual ~MuxOMX();
-
-    // Nobody should be calling this. In case someone does anyway, just
-    // return the media server IOMX.
-    // TODO: return NULL
-    virtual IBinder *onAsBinder() {
-        ALOGE("MuxOMX::onAsBinder should not be called");
-        return IInterface::asBinder(mMediaServerOMX).get();
-    }
-
-    virtual bool livesLocally(node_id node, pid_t pid);
-
-    virtual status_t listNodes(List<ComponentInfo> *list);
-
-    virtual status_t allocateNode(
-            const char *name, const sp<IOMXObserver> &observer,
-            sp<IBinder> *nodeBinder,
-            node_id *node);
-
-    virtual status_t freeNode(node_id node);
-
-    virtual status_t sendCommand(
-            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param);
-
-    virtual status_t getParameter(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size);
-
-    virtual status_t setParameter(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size);
-
-    virtual status_t getConfig(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size);
-
-    virtual status_t setConfig(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size);
-
-    virtual status_t getState(
-            node_id node, OMX_STATETYPE* state);
-
-    virtual status_t storeMetaDataInBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type);
-
-    virtual status_t prepareForAdaptivePlayback(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable,
-            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight);
-
-    virtual status_t configureVideoTunnelMode(
-            node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
-            OMX_U32 audioHwSync, native_handle_t **sidebandHandle);
-
-    virtual status_t enableNativeBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable);
-
-    virtual status_t getGraphicBufferUsage(
-            node_id node, OMX_U32 port_index, OMX_U32* usage);
-
-    virtual status_t useBuffer(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize);
-
-    virtual status_t useGraphicBuffer(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer);
-
-    virtual status_t updateGraphicBufferInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer);
-
-    virtual status_t updateNativeHandleInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<NativeHandle> &nativeHandle, buffer_id buffer);
-
-    virtual status_t createInputSurface(
-            node_id node, OMX_U32 port_index, android_dataspace dataSpace,
-            sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type);
-
-    virtual status_t createPersistentInputSurface(
-            sp<IGraphicBufferProducer> *bufferProducer,
-            sp<IGraphicBufferConsumer> *bufferConsumer);
-
-    virtual status_t setInputSurface(
-            node_id node, OMX_U32 port_index,
-            const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type);
-
-    virtual status_t signalEndOfInputStream(node_id node);
-
-    virtual status_t allocateSecureBuffer(
-            node_id node, OMX_U32 port_index, size_t size,
-            buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle);
-
-    virtual status_t allocateBufferWithBackup(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize);
-
-    virtual status_t freeBuffer(
-            node_id node, OMX_U32 port_index, buffer_id buffer);
-
-    virtual status_t fillBuffer(node_id node, buffer_id buffer, int fenceFd);
-
-    virtual status_t emptyBuffer(
-            node_id node,
-            buffer_id buffer,
-            OMX_U32 range_offset, OMX_U32 range_length,
-            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
-
-    virtual status_t getExtensionIndex(
-            node_id node,
-            const char *parameter_name,
-            OMX_INDEXTYPE *index);
-
-    virtual status_t setInternalOption(
-            node_id node,
-            OMX_U32 port_index,
-            InternalOptionType type,
-            const void *data,
-            size_t size);
-
-private:
-    mutable Mutex mLock;
-
-    sp<IOMX> mMediaServerOMX;
-    sp<IOMX> mMediaCodecOMX;
-    sp<IOMX> mLocalOMX;
-
-    typedef enum {
-        LOCAL,
-        MEDIAPROCESS,
-        CODECPROCESS
-    } node_location;
-
-    KeyedVector<node_id, node_location> mNodeLocation;
-
-    bool isLocalNode(node_id node) const;
-    bool isLocalNode_l(node_id node) const;
-    const sp<IOMX> &getOMX(node_id node) const;
-    const sp<IOMX> &getOMX_l(node_id node) const;
-
-    static node_location getPreferredCodecLocation(const char *name);
-
-    DISALLOW_EVIL_CONSTRUCTORS(MuxOMX);
-};
-
-MuxOMX::MuxOMX(const sp<IOMX> &mediaServerOMX, const sp<IOMX> &mediaCodecOMX)
-    : mMediaServerOMX(mediaServerOMX),
-      mMediaCodecOMX(mediaCodecOMX) {
-    ALOGI("MuxOMX ctor");
-}
-
-MuxOMX::~MuxOMX() {
-}
-
-bool MuxOMX::isLocalNode(node_id node) const {
-    Mutex::Autolock autoLock(mLock);
-
-    return isLocalNode_l(node);
-}
-
-bool MuxOMX::isLocalNode_l(node_id node) const {
-    return mNodeLocation.valueFor(node) == LOCAL;
-}
-
-// static
-MuxOMX::node_location MuxOMX::getPreferredCodecLocation(const char *name) {
-    if (sCodecProcessEnabled) {
-        // all codecs go to codec process unless excluded using system property, in which case
-        // all non-secure decoders, OMX.google.* codecs and encoders can go in the codec process
-        // (non-OMX.google.* encoders can be excluded using system property.)
-        if ((strcasestr(name, "decoder")
-                        && strcasestr(name, ".secure") != name + strlen(name) - 7)
-                || (strcasestr(name, "encoder")
-                        && !property_get_bool("media.stagefright.legacyencoder", false))
-                || !property_get_bool("media.stagefright.less-secure", false)
-                || !strncasecmp(name, "OMX.google.", 11)) {
-            return CODECPROCESS;
-        }
-        // everything else runs in the media server
-        return MEDIAPROCESS;
-    } else {
-#ifdef __LP64__
-        // 64 bit processes always run OMX remote on MediaServer
-        return MEDIAPROCESS;
-#else
-        // 32 bit processes run only OMX.google.* components locally
-        if (!strncasecmp(name, "OMX.google.", 11)) {
-            return LOCAL;
-        }
-        return MEDIAPROCESS;
-#endif
-    }
-}
-
-const sp<IOMX> &MuxOMX::getOMX(node_id node) const {
-    Mutex::Autolock autoLock(mLock);
-    return getOMX_l(node);
-}
-
-const sp<IOMX> &MuxOMX::getOMX_l(node_id node) const {
-    node_location loc = mNodeLocation.valueFor(node);
-    if (loc == LOCAL) {
-        return mLocalOMX;
-    } else if (loc == MEDIAPROCESS) {
-        return mMediaServerOMX;
-    } else if (loc == CODECPROCESS) {
-        return mMediaCodecOMX;
-    }
-    ALOGE("Couldn't determine node location for node %d: %d, using local", node, loc);
-    return mLocalOMX;
-}
-
-bool MuxOMX::livesLocally(node_id node, pid_t pid) {
-    return getOMX(node)->livesLocally(node, pid);
-}
-
-status_t MuxOMX::listNodes(List<ComponentInfo> *list) {
-    Mutex::Autolock autoLock(mLock);
-
-    if (mLocalOMX == NULL) {
-        mLocalOMX = new OMX;
-    }
-
-    return mLocalOMX->listNodes(list);
-}
-
-status_t MuxOMX::allocateNode(
-        const char *name, const sp<IOMXObserver> &observer,
-        sp<IBinder> *nodeBinder,
-        node_id *node) {
-    Mutex::Autolock autoLock(mLock);
-
-    sp<IOMX> omx;
-
-    node_location loc = getPreferredCodecLocation(name);
-    if (loc == CODECPROCESS) {
-        omx = mMediaCodecOMX;
-    } else if (loc == MEDIAPROCESS) {
-        omx = mMediaServerOMX;
-    } else {
-        if (mLocalOMX == NULL) {
-            mLocalOMX = new OMX;
-        }
-        omx = mLocalOMX;
-    }
-
-    status_t err = omx->allocateNode(name, observer, nodeBinder, node);
-    ALOGV("allocated node_id %x on %s OMX", *node, omx == mMediaCodecOMX ? "codecprocess" :
-            omx == mMediaServerOMX ? "mediaserver" : "local");
-
-
-    if (err != OK) {
-        return err;
-    }
-
-    mNodeLocation.add(*node, loc);
-
-    return OK;
-}
-
-status_t MuxOMX::freeNode(node_id node) {
-    Mutex::Autolock autoLock(mLock);
-
-    // exit if we have already freed the node
-    if (mNodeLocation.indexOfKey(node) < 0) {
-        ALOGD("MuxOMX::freeNode: node %d seems to be released already --- ignoring.", node);
-        return OK;
-    }
-
-    status_t err = getOMX_l(node)->freeNode(node);
-
-    if (err != OK) {
-        return err;
-    }
-
-    mNodeLocation.removeItem(node);
-
-    return OK;
-}
-
-status_t MuxOMX::sendCommand(
-        node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) {
-    return getOMX(node)->sendCommand(node, cmd, param);
-}
-
-status_t MuxOMX::getParameter(
-        node_id node, OMX_INDEXTYPE index,
-        void *params, size_t size) {
-    return getOMX(node)->getParameter(node, index, params, size);
-}
-
-status_t MuxOMX::setParameter(
-        node_id node, OMX_INDEXTYPE index,
-        const void *params, size_t size) {
-    return getOMX(node)->setParameter(node, index, params, size);
-}
-
-status_t MuxOMX::getConfig(
-        node_id node, OMX_INDEXTYPE index,
-        void *params, size_t size) {
-    return getOMX(node)->getConfig(node, index, params, size);
-}
-
-status_t MuxOMX::setConfig(
-        node_id node, OMX_INDEXTYPE index,
-        const void *params, size_t size) {
-    return getOMX(node)->setConfig(node, index, params, size);
-}
-
-status_t MuxOMX::getState(
-        node_id node, OMX_STATETYPE* state) {
-    return getOMX(node)->getState(node, state);
-}
-
-status_t MuxOMX::storeMetaDataInBuffers(
-        node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type) {
-    return getOMX(node)->storeMetaDataInBuffers(node, port_index, enable, type);
-}
-
-status_t MuxOMX::prepareForAdaptivePlayback(
-        node_id node, OMX_U32 port_index, OMX_BOOL enable,
-        OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) {
-    return getOMX(node)->prepareForAdaptivePlayback(
-            node, port_index, enable, maxFrameWidth, maxFrameHeight);
-}
-
-status_t MuxOMX::configureVideoTunnelMode(
-        node_id node, OMX_U32 portIndex, OMX_BOOL enable,
-        OMX_U32 audioHwSync, native_handle_t **sidebandHandle) {
-    return getOMX(node)->configureVideoTunnelMode(
-            node, portIndex, enable, audioHwSync, sidebandHandle);
-}
-
-status_t MuxOMX::enableNativeBuffers(
-        node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable) {
-    return getOMX(node)->enableNativeBuffers(node, port_index, graphic, enable);
-}
-
-status_t MuxOMX::getGraphicBufferUsage(
-        node_id node, OMX_U32 port_index, OMX_U32* usage) {
-    return getOMX(node)->getGraphicBufferUsage(node, port_index, usage);
-}
-
-status_t MuxOMX::useBuffer(
-        node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-        buffer_id *buffer, OMX_U32 allottedSize) {
-    return getOMX(node)->useBuffer(node, port_index, params, buffer, allottedSize);
-}
-
-status_t MuxOMX::useGraphicBuffer(
-        node_id node, OMX_U32 port_index,
-        const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) {
-    return getOMX(node)->useGraphicBuffer(
-            node, port_index, graphicBuffer, buffer);
-}
-
-status_t MuxOMX::updateGraphicBufferInMeta(
-        node_id node, OMX_U32 port_index,
-        const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) {
-    return getOMX(node)->updateGraphicBufferInMeta(
-            node, port_index, graphicBuffer, buffer);
-}
-
-status_t MuxOMX::updateNativeHandleInMeta(
-        node_id node, OMX_U32 port_index,
-        const sp<NativeHandle> &nativeHandle, buffer_id buffer) {
-    return getOMX(node)->updateNativeHandleInMeta(
-            node, port_index, nativeHandle, buffer);
-}
-
-status_t MuxOMX::createInputSurface(
-        node_id node, OMX_U32 port_index, android_dataspace dataSpace,
-        sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type) {
-    status_t err = getOMX(node)->createInputSurface(
-            node, port_index, dataSpace, bufferProducer, type);
-    return err;
-}
-
-status_t MuxOMX::createPersistentInputSurface(
-        sp<IGraphicBufferProducer> *bufferProducer,
-        sp<IGraphicBufferConsumer> *bufferConsumer) {
-    sp<IOMX> omx;
-    {
-        Mutex::Autolock autoLock(mLock);
-        if (property_get_bool("media.stagefright.legacyencoder", false)) {
-            omx = mMediaServerOMX;
-        } else {
-            omx = mMediaCodecOMX;
-        }
-    }
-    return omx->createPersistentInputSurface(
-            bufferProducer, bufferConsumer);
-}
-
-status_t MuxOMX::setInputSurface(
-        node_id node, OMX_U32 port_index,
-        const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type) {
-    return getOMX(node)->setInputSurface(node, port_index, bufferConsumer, type);
-}
-
-status_t MuxOMX::signalEndOfInputStream(node_id node) {
-    return getOMX(node)->signalEndOfInputStream(node);
-}
-
-status_t MuxOMX::allocateSecureBuffer(
-        node_id node, OMX_U32 port_index, size_t size,
-        buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle) {
-    return getOMX(node)->allocateSecureBuffer(
-            node, port_index, size, buffer, buffer_data, native_handle);
-}
-
-status_t MuxOMX::allocateBufferWithBackup(
-        node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-        buffer_id *buffer, OMX_U32 allottedSize) {
-    return getOMX(node)->allocateBufferWithBackup(
-            node, port_index, params, buffer, allottedSize);
-}
-
-status_t MuxOMX::freeBuffer(
-        node_id node, OMX_U32 port_index, buffer_id buffer) {
-    return getOMX(node)->freeBuffer(node, port_index, buffer);
-}
-
-status_t MuxOMX::fillBuffer(node_id node, buffer_id buffer, int fenceFd) {
-    return getOMX(node)->fillBuffer(node, buffer, fenceFd);
-}
-
-status_t MuxOMX::emptyBuffer(
-        node_id node,
-        buffer_id buffer,
-        OMX_U32 range_offset, OMX_U32 range_length,
-        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
-    return getOMX(node)->emptyBuffer(
-            node, buffer, range_offset, range_length, flags, timestamp, fenceFd);
-}
-
-status_t MuxOMX::getExtensionIndex(
-        node_id node,
-        const char *parameter_name,
-        OMX_INDEXTYPE *index) {
-    return getOMX(node)->getExtensionIndex(node, parameter_name, index);
-}
-
-status_t MuxOMX::setInternalOption(
-        node_id node,
-        OMX_U32 port_index,
-        InternalOptionType type,
-        const void *data,
-        size_t size) {
-    return getOMX(node)->setInternalOption(node, port_index, type, data, size);
-}
-
 OMXClient::OMXClient() {
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("media.stagefright.codecremote", value, NULL)
-            && (!strcmp("0", value) || !strcasecmp("false", value))) {
-        sCodecProcessEnabled = false;
-    }
 }
 
 status_t OMXClient::connect() {
+    return connect(nullptr);
+}
+
+status_t OMXClient::connect(bool* trebleFlag) {
+    if (property_get_bool("persist.media.treble_omx", true)) {
+        if (trebleFlag != nullptr) {
+            *trebleFlag = true;
+        }
+        return connectTreble();
+    }
+    if (trebleFlag != nullptr) {
+        *trebleFlag = false;
+    }
+    return connectLegacy();
+}
+
+status_t OMXClient::connectLegacy() {
     sp<IServiceManager> sm = defaultServiceManager();
-    sp<IBinder> playerbinder = sm->getService(String16("media.player"));
-    sp<IMediaPlayerService> mediaservice = interface_cast<IMediaPlayerService>(playerbinder);
-
-    if (mediaservice.get() == NULL) {
-        ALOGE("Cannot obtain IMediaPlayerService");
-        return NO_INIT;
-    }
-
-    sp<IOMX> mediaServerOMX = mediaservice->getOMX();
-    if (mediaServerOMX.get() == NULL) {
-        ALOGE("Cannot obtain mediaserver IOMX");
-        return NO_INIT;
-    }
-
-    // If we don't want to use the codec process, and the media server OMX
-    // is local, use it directly instead of going through MuxOMX
-    if (!sCodecProcessEnabled &&
-            mediaServerOMX->livesLocally(0 /* node */, getpid())) {
-        mOMX = mediaServerOMX;
-        return OK;
-    }
-
     sp<IBinder> codecbinder = sm->getService(String16("media.codec"));
     sp<IMediaCodecService> codecservice = interface_cast<IMediaCodecService>(codecbinder);
 
@@ -532,22 +64,33 @@
         return NO_INIT;
     }
 
-    sp<IOMX> mediaCodecOMX = codecservice->getOMX();
-    if (mediaCodecOMX.get() == NULL) {
+    mOMX = codecservice->getOMX();
+    if (mOMX.get() == NULL) {
         ALOGE("Cannot obtain mediacodec IOMX");
         return NO_INIT;
     }
 
-    mOMX = new MuxOMX(mediaServerOMX, mediaCodecOMX);
+    return OK;
+}
 
+status_t OMXClient::connectTreble() {
+    using namespace ::android::hardware::media::omx::V1_0;
+    sp<IOmx> tOmx = IOmx::getService("default");
+    if (tOmx.get() == nullptr) {
+        ALOGE("Cannot obtain Treble IOmx.");
+        return NO_INIT;
+    }
+    if (!tOmx->isRemote()) {
+        ALOGE("Treble IOmx is in passthrough mode.");
+        return NO_INIT;
+    }
+    mOMX = new utils::LWOmx(tOmx);
+    ALOGI("Treble IOmx obtained");
     return OK;
 }
 
 void OMXClient::disconnect() {
-    if (mOMX.get() != NULL) {
-        mOMX.clear();
-        mOMX = NULL;
-    }
+    mOMX.clear();
 }
 
 }  // namespace android
diff --git a/media/libstagefright/OggExtractor.cpp b/media/libstagefright/OggExtractor.cpp
index 752f2fe..810b0d6 100644
--- a/media/libstagefright/OggExtractor.cpp
+++ b/media/libstagefright/OggExtractor.cpp
@@ -46,7 +46,7 @@
 namespace android {
 
 struct OggSource : public MediaSource {
-    OggSource(const sp<OggExtractor> &extractor);
+    explicit OggSource(const sp<OggExtractor> &extractor);
 
     virtual sp<MetaData> getFormat();
 
@@ -164,7 +164,7 @@
 };
 
 struct MyVorbisExtractor : public MyOggExtractor {
-    MyVorbisExtractor(const sp<DataSource> &source)
+    explicit MyVorbisExtractor(const sp<DataSource> &source)
         : MyOggExtractor(source,
                 MEDIA_MIMETYPE_AUDIO_VORBIS,
                 /* numHeaders */ 3,
@@ -192,7 +192,7 @@
     static const int32_t kOpusSampleRate = 48000;
     static const int64_t kOpusSeekPreRollUs = 80000; // 80 ms
 
-    MyOpusExtractor(const sp<DataSource> &source)
+    explicit MyOpusExtractor(const sp<DataSource> &source)
         : MyOggExtractor(source, MEDIA_MIMETYPE_AUDIO_OPUS, /*numHeaders*/ 2, kOpusSeekPreRollUs),
           mChannelCount(0),
           mCodecDelay(0),
diff --git a/media/libstagefright/SampleIterator.cpp b/media/libstagefright/SampleIterator.cpp
index 54c9fa3..4134698 100644
--- a/media/libstagefright/SampleIterator.cpp
+++ b/media/libstagefright/SampleIterator.cpp
@@ -305,8 +305,16 @@
         return ERROR_OUT_OF_RANGE;
     }
 
-    while (sampleIndex >= mTTSSampleIndex + mTTSCount) {
-        if (mTimeToSampleIndex == mTable->mTimeToSampleCount) {
+    while (true) {
+        if (mTTSSampleIndex > UINT32_MAX - mTTSCount) {
+            return ERROR_OUT_OF_RANGE;
+        }
+        if(sampleIndex < mTTSSampleIndex + mTTSCount) {
+            break;
+        }
+        if (mTimeToSampleIndex == mTable->mTimeToSampleCount ||
+            (mTTSDuration != 0 && mTTSCount > UINT32_MAX / mTTSDuration) ||
+            mTTSSampleTime > UINT32_MAX - (mTTSCount * mTTSDuration)) {
             return ERROR_OUT_OF_RANGE;
         }
 
diff --git a/media/libstagefright/SampleTable.cpp b/media/libstagefright/SampleTable.cpp
index 70d6cb7..1d2a931 100644
--- a/media/libstagefright/SampleTable.cpp
+++ b/media/libstagefright/SampleTable.cpp
@@ -215,6 +215,11 @@
 status_t SampleTable::setSampleToChunkParams(
         off64_t data_offset, size_t data_size) {
     if (mSampleToChunkOffset >= 0) {
+        // already set
+        return ERROR_MALFORMED;
+    }
+
+    if (data_offset < 0) {
         return ERROR_MALFORMED;
     }
 
@@ -696,7 +701,13 @@
             }
 
             ++sampleIndex;
-            sampleTime += delta;
+            if (sampleTime > UINT32_MAX - delta) {
+                ALOGE("%u + %u would overflow, clamping",
+                    sampleTime, delta);
+                sampleTime = UINT32_MAX;
+            } else {
+                sampleTime += delta;
+            }
         }
     }
 
diff --git a/media/libstagefright/SimpleDecodingSource.cpp b/media/libstagefright/SimpleDecodingSource.cpp
index 2503a32..ea7d5af 100644
--- a/media/libstagefright/SimpleDecodingSource.cpp
+++ b/media/libstagefright/SimpleDecodingSource.cpp
@@ -17,7 +17,7 @@
 #include <gui/Surface.h>
 
 #include <media/ICrypto.h>
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -230,7 +230,7 @@
                 break;
             }
 
-            sp<ABuffer> in_buffer;
+            sp<MediaCodecBuffer> in_buffer;
             if (res == OK) {
                 res = mCodec->getInputBuffer(in_ix, &in_buffer);
             }
@@ -344,7 +344,7 @@
             return res;
         }
 
-        sp<ABuffer> out_buffer;
+        sp<MediaCodecBuffer> out_buffer;
         res = mCodec->getOutputBuffer(out_ix, &out_buffer);
         if (res != OK) {
             ALOGW("[%s] could not get output buffer #%zu",
diff --git a/media/libstagefright/SkipCutBuffer.cpp b/media/libstagefright/SkipCutBuffer.cpp
index d30be88..ee9016d 100644
--- a/media/libstagefright/SkipCutBuffer.cpp
+++ b/media/libstagefright/SkipCutBuffer.cpp
@@ -88,7 +88,8 @@
     buffer->set_range(0, copied);
 }
 
-void SkipCutBuffer::submit(const sp<ABuffer>& buffer) {
+template <typename T>
+void SkipCutBuffer::submitInternal(const sp<T>& buffer) {
     if (mCutBuffer == NULL) {
         // passthrough mode
         return;
@@ -120,6 +121,14 @@
     buffer->setRange(0, copied);
 }
 
+void SkipCutBuffer::submit(const sp<ABuffer>& buffer) {
+    submitInternal(buffer);
+}
+
+void SkipCutBuffer::submit(const sp<MediaCodecBuffer>& buffer) {
+    submitInternal(buffer);
+}
+
 void SkipCutBuffer::clear() {
     mWriteHead = mReadHead = 0;
     mFrontPadding = mSkip;
diff --git a/media/libstagefright/StagefrightMetadataRetriever.cpp b/media/libstagefright/StagefrightMetadataRetriever.cpp
index be5067d..883a4dd 100644
--- a/media/libstagefright/StagefrightMetadataRetriever.cpp
+++ b/media/libstagefright/StagefrightMetadataRetriever.cpp
@@ -27,8 +27,8 @@
 
 #include <media/ICrypto.h>
 #include <media/IMediaHTTPService.h>
+#include <media/MediaCodecBuffer.h>
 
-#include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/ColorConverter.h>
@@ -55,8 +55,6 @@
     : mParsedMetaData(false),
       mAlbumArt(NULL) {
     ALOGV("StagefrightMetadataRetriever()");
-
-    DataSource::RegisterDefaultSniffers();
 }
 
 StagefrightMetadataRetriever::~StagefrightMetadataRetriever() {
@@ -223,7 +221,7 @@
         return NULL;
     }
 
-    Vector<sp<ABuffer> > inputBuffers;
+    Vector<sp<MediaCodecBuffer> > inputBuffers;
     err = decoder->getInputBuffers(&inputBuffers);
     if (err != OK) {
         ALOGW("failed to get input buffers: %d (%s)", err, asString(err));
@@ -232,7 +230,7 @@
         return NULL;
     }
 
-    Vector<sp<ABuffer> > outputBuffers;
+    Vector<sp<MediaCodecBuffer> > outputBuffers;
     err = decoder->getOutputBuffers(&outputBuffers);
     if (err != OK) {
         ALOGW("failed to get output buffers: %d (%s)", err, asString(err));
@@ -264,7 +262,7 @@
         size_t inputIndex = -1;
         int64_t ptsUs = 0ll;
         uint32_t flags = 0;
-        sp<ABuffer> codecBuffer = NULL;
+        sp<MediaCodecBuffer> codecBuffer = NULL;
 
         while (haveMoreInputs) {
             err = decoder->dequeueInputBuffer(&inputIndex, kBufferTimeOutUs);
@@ -376,7 +374,7 @@
     }
 
     ALOGV("successfully decoded video frame.");
-    sp<ABuffer> videoFrameBuffer = outputBuffers.itemAt(index);
+    sp<MediaCodecBuffer> videoFrameBuffer = outputBuffers.itemAt(index);
 
     if (thumbNailTime >= 0) {
         if (timeUs != thumbNailTime) {
@@ -418,6 +416,22 @@
             && trackMeta->findInt32(kKeySARHeight, &sarHeight)
             && sarHeight != 0) {
         frame->mDisplayWidth = (frame->mDisplayWidth * sarWidth) / sarHeight;
+    } else {
+        int32_t width, height;
+        if (trackMeta->findInt32(kKeyDisplayWidth, &width)
+                && trackMeta->findInt32(kKeyDisplayHeight, &height)
+                && frame->mDisplayWidth > 0 && frame->mDisplayHeight > 0
+                && width > 0 && height > 0) {
+            if (frame->mDisplayHeight * (int64_t)width / height > (int64_t)frame->mDisplayWidth) {
+                frame->mDisplayHeight =
+                        (int32_t)(height * (int64_t)frame->mDisplayWidth / width);
+            } else {
+                frame->mDisplayWidth =
+                        (int32_t)(frame->mDisplayHeight * (int64_t)width / height);
+            }
+            ALOGV("thumbNail width and height are overridden to %d x %d",
+                    frame->mDisplayWidth, frame->mDisplayHeight);
+        }
     }
 
     int32_t srcFormat;
@@ -754,9 +768,9 @@
 
     if (numTracks == 1) {
         const char *fileMIME;
-        CHECK(meta->findCString(kKeyMIMEType, &fileMIME));
 
-        if (!strcasecmp(fileMIME, "video/x-matroska")) {
+        if (meta->findCString(kKeyMIMEType, &fileMIME) &&
+                !strcasecmp(fileMIME, "video/x-matroska")) {
             sp<MetaData> trackMeta = mExtractor->getTrackMetaData(0);
             const char *trackMIME;
             CHECK(trackMeta->findCString(kKeyMIMEType, &trackMIME));
@@ -769,11 +783,6 @@
             }
         }
     }
-
-    // To check whether the media file is drm-protected
-    if (mExtractor->getDrmFlag()) {
-        mMetaData.add(METADATA_KEY_IS_DRM, String8("1"));
-    }
 }
 
 void StagefrightMetadataRetriever::clearMetadata() {
diff --git a/media/libstagefright/SurfaceMediaSource.cpp b/media/libstagefright/SurfaceMediaSource.cpp
index 15ff569..d0d82b3 100644
--- a/media/libstagefright/SurfaceMediaSource.cpp
+++ b/media/libstagefright/SurfaceMediaSource.cpp
@@ -29,7 +29,6 @@
 #include <ui/GraphicBuffer.h>
 #include <gui/BufferItem.h>
 #include <gui/ISurfaceComposer.h>
-#include <gui/IGraphicBufferAlloc.h>
 #include <OMX_Component.h>
 
 #include <utils/Log.h>
@@ -112,7 +111,7 @@
     Mutex::Autolock lock(mMutex);
 
     result.append(buffer);
-    mConsumer->dump(result, "");
+    mConsumer->dumpState(result, "");
 }
 
 status_t SurfaceMediaSource::setFrameRate(int32_t fps)
diff --git a/media/libstagefright/SurfaceUtils.cpp b/media/libstagefright/SurfaceUtils.cpp
index 568837a..b7c1598 100644
--- a/media/libstagefright/SurfaceUtils.cpp
+++ b/media/libstagefright/SurfaceUtils.cpp
@@ -31,15 +31,15 @@
 
     // In some cases we need to reconnect so that we can dequeue all buffers
     if (reconnect) {
-        err = native_window_api_disconnect(nativeWindow, NATIVE_WINDOW_API_MEDIA);
+        err = nativeWindowDisconnect(nativeWindow, "setNativeWindowSizeFormatAndUsage");
         if (err != NO_ERROR) {
-            ALOGE("native_window_api_disconnect failed: %s (%d)", strerror(-err), -err);
+            ALOGE("nativeWindowDisconnect failed: %s (%d)", strerror(-err), -err);
             return err;
         }
 
-        err = native_window_api_connect(nativeWindow, NATIVE_WINDOW_API_MEDIA);
+        err = nativeWindowConnect(nativeWindow, "setNativeWindowSizeFormatAndUsage");
         if (err != NO_ERROR) {
-            ALOGE("native_window_api_connect failed: %s (%d)", strerror(-err), -err);
+            ALOGE("nativeWindowConnect failed: %s (%d)", strerror(-err), -err);
             return err;
         }
     }
@@ -91,9 +91,19 @@
             return err;
         }
 
-        // Check if the ANativeWindow uses hardware protected buffers.
-        if (queuesToNativeWindow != 1 && !(consumerUsage & GRALLOC_USAGE_PROTECTED)) {
-            ALOGE("native window could not be authenticated");
+        // Check if the consumer end of the ANativeWindow can handle protected content.
+        int isConsumerProtected = 0;
+        err = nativeWindow->query(
+                nativeWindow, NATIVE_WINDOW_CONSUMER_IS_PROTECTED, &isConsumerProtected);
+        if (err != NO_ERROR) {
+            ALOGE("error query native window: %s (%d)", strerror(-err), -err);
+            return err;
+        }
+
+        // Deny queuing into native window if neither condition is satisfied.
+        if (queuesToNativeWindow != 1 && isConsumerProtected != 1) {
+            ALOGE("native window cannot handle protected buffers: the consumer should either be "
+                  "a hardware composer or support hardware protection");
             return PERMISSION_DENIED;
         }
     }
@@ -127,7 +137,7 @@
     // We need to reconnect to the ANativeWindow as a CPU client to ensure that
     // no frames get dropped by SurfaceFlinger assuming that these are video
     // frames.
-    err = native_window_api_disconnect(nativeWindow, NATIVE_WINDOW_API_MEDIA);
+    err = nativeWindowDisconnect(nativeWindow, "pushBlankBuffersToNativeWindow");
     if (err != NO_ERROR) {
         ALOGE("error pushing blank frames: api_disconnect failed: %s (%d)", strerror(-err), -err);
         return err;
@@ -136,7 +146,7 @@
     err = native_window_api_connect(nativeWindow, NATIVE_WINDOW_API_CPU);
     if (err != NO_ERROR) {
         ALOGE("error pushing blank frames: api_connect failed: %s (%d)", strerror(-err), -err);
-        (void)native_window_api_connect(nativeWindow, NATIVE_WINDOW_API_MEDIA);
+        (void)nativeWindowConnect(nativeWindow, "pushBlankBuffersToNativeWindow(err)");
         return err;
     }
 
@@ -176,7 +186,7 @@
             break;
         }
 
-        sp<GraphicBuffer> buf(new GraphicBuffer(anb, false));
+        sp<GraphicBuffer> buf(GraphicBuffer::from(anb));
 
         // Fill the buffer with the a 1x1 checkerboard pattern ;)
         uint32_t *img = NULL;
@@ -219,7 +229,7 @@
         }
     }
 
-    err2 = native_window_api_connect(nativeWindow, NATIVE_WINDOW_API_MEDIA);
+    err2 = nativeWindowConnect(nativeWindow, "pushBlankBuffersToNativeWindow(err2)");
     if (err2 != NO_ERROR) {
         ALOGE("error pushing blank frames: api_connect failed: %s (%d)", strerror(-err), -err);
         if (err == NO_ERROR) {
@@ -230,5 +240,22 @@
     return err;
 }
 
+status_t nativeWindowConnect(ANativeWindow *surface, const char *reason) {
+    ALOGD("connecting to surface %p, reason %s", surface, reason);
+
+    status_t err = native_window_api_connect(surface, NATIVE_WINDOW_API_MEDIA);
+    ALOGE_IF(err != OK, "Failed to connect to surface %p, err %d", surface, err);
+
+    return err;
+}
+
+status_t nativeWindowDisconnect(ANativeWindow *surface, const char *reason) {
+    ALOGD("disconnecting from surface %p, reason %s", surface, reason);
+
+    status_t err = native_window_api_disconnect(surface, NATIVE_WINDOW_API_MEDIA);
+    ALOGE_IF(err != OK, "Failed to disconnect from surface %p, err %d", surface, err);
+
+    return err;
+}
 }  // namespace android
 
diff --git a/media/libstagefright/Utils.cpp b/media/libstagefright/Utils.cpp
index 1c76ad7..621c2ce 100644
--- a/media/libstagefright/Utils.cpp
+++ b/media/libstagefright/Utils.cpp
@@ -41,9 +41,9 @@
 #include <media/stagefright/MediaDefs.h>
 #include <media/AudioSystem.h>
 #include <media/MediaPlayerInterface.h>
-#include <hardware/audio.h>
 #include <media/stagefright/Utils.h>
 #include <media/AudioParameter.h>
+#include <system/audio.h>
 
 namespace android {
 
@@ -610,6 +610,31 @@
     sp<AMessage> msg = new AMessage;
     msg->setString("mime", mime);
 
+    uint32_t type;
+    const void *data;
+    size_t size;
+    if (meta->findData(kKeyCASessionID, &type, &data, &size)) {
+        sp<ABuffer> buffer = new (std::nothrow) ABuffer(size);
+        if (buffer.get() == NULL || buffer->base() == NULL) {
+            return NO_MEMORY;
+        }
+
+        msg->setBuffer("ca-session-id", buffer);
+        memcpy(buffer->data(), data, size);
+    }
+
+    int32_t systemId;
+    if (meta->findInt32(kKeyCASystemID, &systemId)) {
+        msg->setInt32("ca-system-id", systemId);
+    }
+
+    if (!strncasecmp("video/scrambled", mime, 15)
+            || !strncasecmp("audio/scrambled", mime, 15)) {
+
+        *format = msg;
+        return OK;
+    }
+
     int64_t durationUs;
     if (meta->findInt64(kKeyDuration, &durationUs)) {
         msg->setInt64("durationUs", durationUs);
@@ -637,6 +662,11 @@
         msg->setInt32("track-id", trackID);
     }
 
+    const char *lang;
+    if (meta->findCString(kKeyMediaLanguage, &lang)) {
+        msg->setString("language", lang);
+    }
+
     if (!strncasecmp("video/", mime, 6)) {
         int32_t width, height;
         if (!meta->findInt32(kKeyWidth, &width)
@@ -647,6 +677,13 @@
         msg->setInt32("width", width);
         msg->setInt32("height", height);
 
+        int32_t displayWidth, displayHeight;
+        if (meta->findInt32(kKeyDisplayWidth, &displayWidth)
+                && meta->findInt32(kKeyDisplayHeight, &displayHeight)) {
+            msg->setInt32("display-width", displayWidth);
+            msg->setInt32("display-height", displayHeight);
+        }
+
         int32_t sarWidth, sarHeight;
         if (meta->findInt32(kKeySARWidth, &sarWidth)
                 && meta->findInt32(kKeySARHeight, &sarHeight)) {
@@ -747,9 +784,6 @@
         msg->setInt32("frame-rate", fps);
     }
 
-    uint32_t type;
-    const void *data;
-    size_t size;
     if (meta->findData(kKeyAVCC, &type, &data, &size)) {
         // Parse the AVCDecoderConfigurationRecord
 
@@ -1070,7 +1104,7 @@
     return res != NULL && res < data + length - 4 ? res : &data[length];
 }
 
-static size_t reassembleAVCC(const sp<ABuffer> &csd0, const sp<ABuffer> csd1, char *avcc) {
+static size_t reassembleAVCC(const sp<ABuffer> &csd0, const sp<ABuffer> &csd1, char *avcc) {
     avcc[0] = 1;        // version
     avcc[1] = 0x64;     // profile (default to high)
     avcc[2] = 0;        // constraints (default to none)
@@ -1273,6 +1307,11 @@
         meta->setInt32(kKeyMaxBitRate, maxBitrate);
     }
 
+    AString lang;
+    if (msg->findString("language", &lang)) {
+        meta->setCString(kKeyMediaLanguage, lang.c_str());
+    }
+
     if (mime.startsWith("video/")) {
         int32_t width;
         int32_t height;
@@ -1290,6 +1329,13 @@
             meta->setInt32(kKeySARHeight, sarHeight);
         }
 
+        int32_t displayWidth, displayHeight;
+        if (msg->findInt32("display-width", &displayWidth)
+                && msg->findInt32("display-height", &displayHeight)) {
+            meta->setInt32(kKeyDisplayWidth, displayWidth);
+            meta->setInt32(kKeyDisplayHeight, displayHeight);
+        }
+
         int32_t colorFormat;
         if (msg->findInt32("color-format", &colorFormat)) {
             meta->setInt32(kKeyColorFormat, colorFormat);
@@ -1505,6 +1551,7 @@
     { MEDIA_MIMETYPE_AUDIO_AAC,         AUDIO_FORMAT_AAC },
     { MEDIA_MIMETYPE_AUDIO_VORBIS,      AUDIO_FORMAT_VORBIS },
     { MEDIA_MIMETYPE_AUDIO_OPUS,        AUDIO_FORMAT_OPUS},
+    { MEDIA_MIMETYPE_AUDIO_AC3,         AUDIO_FORMAT_AC3},
     { 0, AUDIO_FORMAT_INVALID }
 };
 
@@ -1634,9 +1681,7 @@
         return AString("<URI suppressed>");
     }
 
-    char prop[PROPERTY_VALUE_MAX];
-    if (property_get("media.stagefright.log-uri", prop, "false") &&
-        (!strcmp(prop, "1") || !strcmp(prop, "true"))) {
+    if (property_get_bool("media.stagefright.log-uri", false)) {
         return uri;
     }
 
@@ -1713,7 +1758,7 @@
             || (t0.mSeq == t1.mSeq && t0.mTimeUs < t1.mTimeUs);
 }
 
-void writeToAMessage(sp<AMessage> msg, const AudioPlaybackRate &rate) {
+void writeToAMessage(const sp<AMessage> &msg, const AudioPlaybackRate &rate) {
     msg->setFloat("speed", rate.mSpeed);
     msg->setFloat("pitch", rate.mPitch);
     msg->setInt32("audio-fallback-mode", rate.mFallbackMode);
@@ -1728,7 +1773,7 @@
     CHECK(msg->findInt32("audio-stretch-mode", (int32_t *)&rate->mStretchMode));
 }
 
-void writeToAMessage(sp<AMessage> msg, const AVSyncSettings &sync, float videoFpsHint) {
+void writeToAMessage(const sp<AMessage> &msg, const AVSyncSettings &sync, float videoFpsHint) {
     msg->setInt32("sync-source", sync.mSource);
     msg->setInt32("audio-adjust-mode", sync.mAudioAdjustMode);
     msg->setFloat("tolerance", sync.mTolerance);
@@ -1747,6 +1792,45 @@
     *sync = settings;
 }
 
+void writeToAMessage(const sp<AMessage> &msg, const BufferingSettings &buffering) {
+    msg->setInt32("init-mode", buffering.mInitialBufferingMode);
+    msg->setInt32("rebuffer-mode", buffering.mRebufferingMode);
+    msg->setInt32("init-ms", buffering.mInitialWatermarkMs);
+    msg->setInt32("init-kb", buffering.mInitialWatermarkKB);
+    msg->setInt32("rebuffer-low-ms", buffering.mRebufferingWatermarkLowMs);
+    msg->setInt32("rebuffer-high-ms", buffering.mRebufferingWatermarkHighMs);
+    msg->setInt32("rebuffer-low-kb", buffering.mRebufferingWatermarkLowKB);
+    msg->setInt32("rebuffer-high-kb", buffering.mRebufferingWatermarkHighKB);
+}
+
+void readFromAMessage(const sp<AMessage> &msg, BufferingSettings *buffering /* nonnull */) {
+    int32_t value;
+    if (msg->findInt32("init-mode", &value)) {
+        buffering->mInitialBufferingMode = (BufferingMode)value;
+    }
+    if (msg->findInt32("rebuffer-mode", &value)) {
+        buffering->mRebufferingMode = (BufferingMode)value;
+    }
+    if (msg->findInt32("init-ms", &value)) {
+        buffering->mInitialWatermarkMs = value;
+    }
+    if (msg->findInt32("init-kb", &value)) {
+        buffering->mInitialWatermarkKB = value;
+    }
+    if (msg->findInt32("rebuffer-low-ms", &value)) {
+        buffering->mRebufferingWatermarkLowMs = value;
+    }
+    if (msg->findInt32("rebuffer-high-ms", &value)) {
+        buffering->mRebufferingWatermarkHighMs = value;
+    }
+    if (msg->findInt32("rebuffer-low-kb", &value)) {
+        buffering->mRebufferingWatermarkLowKB = value;
+    }
+    if (msg->findInt32("rebuffer-high-kb", &value)) {
+        buffering->mRebufferingWatermarkHighKB = value;
+    }
+}
+
 AString nameForFd(int fd) {
     const size_t SIZE = 256;
     char buffer[SIZE];
diff --git a/media/libstagefright/WAVExtractor.cpp b/media/libstagefright/WAVExtractor.cpp
index 1f04fa0..780b746 100644
--- a/media/libstagefright/WAVExtractor.cpp
+++ b/media/libstagefright/WAVExtractor.cpp
@@ -45,7 +45,7 @@
 };
 
 static const char* WAVEEXT_SUBFORMAT = "\x00\x00\x00\x00\x10\x00\x80\x00\x00\xAA\x00\x38\x9B\x71";
-
+static const char* AMBISONIC_SUBFORMAT = "\x00\x00\x21\x07\xD3\x11\x86\x44\xC8\xC1\xCA\x00\x00\x00";
 
 static uint32_t U32_LE_AT(const uint8_t *ptr) {
     return ptr[3] << 24 | ptr[2] << 16 | ptr[1] << 8 | ptr[0];
@@ -250,7 +250,8 @@
                 // In a WAVE_EXT header, the first two bytes of the GUID stored at byte 24 contain
                 // the sample format, using the same definitions as a regular WAV header
                 mWaveFormat = U16_LE_AT(&formatSpec[24]);
-                if (memcmp(&formatSpec[26], WAVEEXT_SUBFORMAT, 14)) {
+                if (memcmp(&formatSpec[26], WAVEEXT_SUBFORMAT, 14) &&
+                    memcmp(&formatSpec[26], AMBISONIC_SUBFORMAT, 14)) {
                     ALOGE("unsupported GUID");
                     return ERROR_UNSUPPORTED;
                 }
diff --git a/media/libstagefright/WVMExtractor.cpp b/media/libstagefright/WVMExtractor.cpp
deleted file mode 100644
index 1c170b8..0000000
--- a/media/libstagefright/WVMExtractor.cpp
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "WVMExtractor"
-#include <utils/Log.h>
-
-#include "include/WVMExtractor.h"
-
-#include <arpa/inet.h>
-#include <utils/String8.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/Utils.h>
-#include <media/stagefright/DataSource.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/MetaData.h>
-#include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/MediaBuffer.h>
-#include <dlfcn.h>
-
-#include <utils/Errors.h>
-
-/* The extractor lifetime is short - just long enough to get
- * the media sources constructed - so the shared lib needs to remain open
- * beyond the lifetime of the extractor.  So keep the handle as a global
- * rather than a member of the extractor
- */
-void *gVendorLibHandle = NULL;
-
-namespace android {
-
-WVMExtractor::WVMExtractor(const sp<DataSource> &source)
-    : mDataSource(source)
-{
-    if (!getVendorLibHandle()) {
-        return;
-    }
-
-    typedef WVMLoadableExtractor *(*GetInstanceFunc)(sp<DataSource>);
-    GetInstanceFunc getInstanceFunc =
-        (GetInstanceFunc) dlsym(gVendorLibHandle,
-                "_ZN7android11GetInstanceENS_2spINS_10DataSourceEEE");
-
-    if (getInstanceFunc) {
-        if (source->DrmInitialization(
-                MEDIA_MIMETYPE_CONTAINER_WVM) != NULL) {
-            mImpl = (*getInstanceFunc)(source);
-            CHECK(mImpl != NULL);
-            setDrmFlag(true);
-        } else {
-            ALOGE("Drm manager failed to initialize.");
-        }
-    } else {
-        ALOGE("Failed to locate GetInstance in libwvm.so");
-    }
-}
-
-static void init_routine()
-{
-    gVendorLibHandle = dlopen("libwvm.so", RTLD_NOW);
-    if (gVendorLibHandle == NULL) {
-        ALOGE("Failed to open libwvm.so: %s", dlerror());
-    }
-}
-
-bool WVMExtractor::getVendorLibHandle()
-{
-    static pthread_once_t sOnceControl = PTHREAD_ONCE_INIT;
-    pthread_once(&sOnceControl, init_routine);
-
-    return gVendorLibHandle != NULL;
-}
-
-WVMExtractor::~WVMExtractor() {
-}
-
-size_t WVMExtractor::countTracks() {
-    return (mImpl != NULL) ? mImpl->countTracks() : 0;
-}
-
-sp<IMediaSource> WVMExtractor::getTrack(size_t index) {
-    if (mImpl == NULL) {
-        return NULL;
-    }
-    return mImpl->getTrack(index);
-}
-
-sp<MetaData> WVMExtractor::getTrackMetaData(size_t index, uint32_t flags) {
-    if (mImpl == NULL) {
-        return NULL;
-    }
-    return mImpl->getTrackMetaData(index, flags);
-}
-
-sp<MetaData> WVMExtractor::getMetaData() {
-    if (mImpl == NULL) {
-        return NULL;
-    }
-    return mImpl->getMetaData();
-}
-
-int64_t WVMExtractor::getCachedDurationUs(status_t *finalStatus) {
-    if (mImpl == NULL) {
-        return 0;
-    }
-
-    return mImpl->getCachedDurationUs(finalStatus);
-}
-
-status_t WVMExtractor::getEstimatedBandwidthKbps(int32_t *kbps) {
-    if (mImpl == NULL) {
-        return UNKNOWN_ERROR;
-    }
-
-    return mImpl->getEstimatedBandwidthKbps(kbps);
-}
-
-
-void WVMExtractor::setAdaptiveStreamingMode(bool adaptive) {
-    if (mImpl != NULL) {
-        mImpl->setAdaptiveStreamingMode(adaptive);
-    }
-}
-
-void WVMExtractor::setCryptoPluginMode(bool cryptoPluginMode) {
-    if (mImpl != NULL) {
-        mImpl->setCryptoPluginMode(cryptoPluginMode);
-    }
-}
-
-void WVMExtractor::setUID(uid_t uid) {
-    if (mImpl != NULL) {
-        mImpl->setUID(uid);
-    }
-}
-
-status_t WVMExtractor::getError() {
-    if (mImpl == NULL) {
-       return UNKNOWN_ERROR;
-    }
-
-    return mImpl->getError();
-}
-
-void WVMExtractor::setError(status_t err) {
-    if (mImpl != NULL) {
-        mImpl->setError(err);
-    }
-}
-
-bool SniffWVM(
-    const sp<DataSource> &source, String8 *mimeType, float *confidence,
-        sp<AMessage> *) {
-
-    if (!WVMExtractor::getVendorLibHandle()) {
-        return false;
-    }
-
-    typedef WVMLoadableExtractor *(*SnifferFunc)(const sp<DataSource>&);
-    SnifferFunc snifferFunc =
-        (SnifferFunc) dlsym(gVendorLibHandle,
-                            "_ZN7android15IsWidevineMediaERKNS_2spINS_10DataSourceEEE");
-
-    if (snifferFunc) {
-        if ((*snifferFunc)(source)) {
-            *mimeType = MEDIA_MIMETYPE_CONTAINER_WVM;
-            *confidence = 10.0f;
-            return true;
-        }
-    } else {
-        ALOGE("IsWidevineMedia not found in libwvm.so");
-    }
-
-    return false;
-}
-
-} //namespace android
-
diff --git a/media/libstagefright/avc_utils.cpp b/media/libstagefright/avc_utils.cpp
index 763381e..7193435 100644
--- a/media/libstagefright/avc_utils.cpp
+++ b/media/libstagefright/avc_utils.cpp
@@ -420,8 +420,8 @@
     meta->setInt32(kKeyWidth, width);
     meta->setInt32(kKeyHeight, height);
 
-    if (sarWidth > 1 || sarHeight > 1) {
-        // We treat 0:0 (unspecified) as 1:1.
+    if ((sarWidth > 0 && sarHeight > 0) && (sarWidth != 1 || sarHeight != 1)) {
+        // We treat *:0 and 0:* (unspecified) as 1:1.
 
         meta->setInt32(kKeySARWidth, sarWidth);
         meta->setInt32(kKeySARHeight, sarHeight);
@@ -447,7 +447,8 @@
     return meta;
 }
 
-bool IsIDR(const sp<ABuffer> &buffer) {
+template <typename T>
+bool IsIDRInternal(const sp<T> &buffer) {
     const uint8_t *data = buffer->data();
     size_t size = buffer->size();
 
@@ -472,14 +473,29 @@
     return foundIDR;
 }
 
+bool IsIDR(const sp<ABuffer> &buffer) {
+    return IsIDRInternal(buffer);
+}
+
+bool IsIDR(const sp<MediaCodecBuffer> &buffer) {
+    return IsIDRInternal(buffer);
+}
+
 bool IsAVCReferenceFrame(const sp<ABuffer> &accessUnit) {
     const uint8_t *data = accessUnit->data();
     size_t size = accessUnit->size();
+    if (data == NULL) {
+        ALOGE("IsAVCReferenceFrame: called on NULL data (%p, %zu)", accessUnit.get(), size);
+        return false;
+    }
 
     const uint8_t *nalStart;
     size_t nalSize;
     while (getNextNALUnit(&data, &size, &nalStart, &nalSize, true) == OK) {
-        CHECK_GT(nalSize, 0u);
+        if (nalSize == 0) {
+            ALOGE("IsAVCReferenceFrame: invalid nalSize: 0 (%p, %zu)", accessUnit.get(), size);
+            return false;
+        }
 
         unsigned nalType = nalStart[0] & 0x1f;
 
diff --git a/media/libstagefright/codec2/Android.mk b/media/libstagefright/codec2/Android.mk
new file mode 100644
index 0000000..ef06ed7
--- /dev/null
+++ b/media/libstagefright/codec2/Android.mk
@@ -0,0 +1,21 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+        C2.cpp    \
+
+LOCAL_C_INCLUDES += \
+        $(TOP)/frameworks/av/media/libstagefright/codec2/include \
+        $(TOP)/frameworks/native/include/media/hardware \
+
+LOCAL_MODULE:= libstagefright_codec2
+LOCAL_CFLAGS += -Werror -Wall
+LOCAL_CLANG := true
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
+
+include $(BUILD_SHARED_LIBRARY)
+
+################################################################################
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/media/libstagefright/codec2/C2.cpp b/media/libstagefright/codec2/C2.cpp
new file mode 100644
index 0000000..a51b073
--- /dev/null
+++ b/media/libstagefright/codec2/C2.cpp
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <C2.h>
+#include <C2Buffer.h>
+#include <C2Component.h>
+#include <C2Config.h>
+#include <C2Param.h>
+#include <C2ParamDef.h>
+#include <C2Work.h>
+
+namespace android {
+
+/**
+ * There is nothing here yet. This library is built to see what symbols and methods get
+ * defined as part of the API include files.
+ *
+ * Going forward, the Codec2 library will contain utility methods that are useful for
+ * Codec2 clients.
+ */
+
+} // namespace android
+
diff --git a/media/libstagefright/codec2/include/C2.h b/media/libstagefright/codec2/include/C2.h
new file mode 100644
index 0000000..7d00a03
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2.h
@@ -0,0 +1,287 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2_H_
+#define C2_H_
+
+#include <string>
+#include <vector>
+#include <list>
+
+#ifdef __ANDROID__
+
+#include <utils/Errors.h>       // for status_t
+#include <utils/Timers.h>       // for nsecs_t
+
+namespace android {
+
+#else
+
+#include <errno.h>
+typedef int64_t nsecs_t;
+
+enum {
+    GRALLOC_USAGE_SW_READ_OFTEN,
+    GRALLOC_USAGE_RENDERSCRIPT,
+    GRALLOC_USAGE_HW_TEXTURE,
+    GRALLOC_USAGE_HW_COMPOSER,
+    GRALLOC_USAGE_HW_VIDEO_ENCODER,
+    GRALLOC_USAGE_PROTECTED,
+    GRALLOC_USAGE_SW_WRITE_OFTEN,
+    GRALLOC_USAGE_HW_RENDER,
+};
+
+#endif
+
+/** \mainpage Codec2
+ *
+ * Codec2 is a frame-based data processing API used by android.
+ *
+ * The framework accesses components via the \ref API.
+ */
+
+/** \ingroup API
+ *
+ * The Codec2 API defines the operation of data processing components and their interaction with
+ * the rest of the system.
+ *
+ * Coding Conventions
+ *
+ * Mitigating Binary Compatibility.
+ *
+ * While full binary compatibility is not a goal of the API (due to our use of STL), we try to
+ * mitigate binary breaks by adhering to the following conventions:
+ *
+ * - at most one vtable with placeholder virtual methods
+ * - all optional/placeholder virtual methods returning a status_t, with C2_NOT_IMPLEMENTED not
+ *   requiring any update to input/output arguments.
+ * - limiting symbol export of inline methods
+ * - use of pimpl (or shared-pimpl)
+ *
+ * Naming
+ *
+ * - all classes and types prefix with C2
+ * - classes for internal use prefix with _C2
+ * - enum values in global namespace prefix with C2_ all caps
+ * - enum values inside classes have no C2_ prefix as class already has it
+ * - supporting two kinds of enum naming: all-caps and kCamelCase
+ * \todo revisit kCamelCase for param-type
+ *
+ * Aspects
+ *
+ * Aspects define certain common behavior across a group of objects.
+ * - classes whose name matches _C2.*Aspect
+ * - only protected constructors
+ * - no desctructor and copiable
+ * - all methods are inline or static (this is opposite of the interface paradigm where all methods
+ *   are virtual, which would not work due to the at most one vtable rule.)
+ * - only private variables (this prevents subclasses interfering with the aspects.)
+ */
+
+/// \defgroup types Common Types
+/// @{
+
+/**
+ * C2String: basic string implementation
+ */
+typedef std::string C2String;
+typedef const char *C2StringLiteral;
+
+/**
+ * C2Error: status codes used.
+ */
+typedef int32_t C2Error;
+enum {
+#ifndef __ANDROID__
+    OK                  = 0,
+    BAD_VALUE           = -EINVAL,
+    BAD_INDEX           = -EOVERFLOW,
+    UNKNOWN_TRANSACTION = -EBADMSG,
+    ALREADY_EXISTS      = -EEXIST,
+    NAME_NOT_FOUND      = -ENOENT,
+    INVALID_OPERATION   = -ENOSYS,
+    NO_MEMORY           = -ENOMEM,
+    PERMISSION_DENIED   = -EPERM,
+    TIMED_OUT           = -ETIMEDOUT,
+    UNKNOWN_ERROR       = -EINVAL,
+#endif
+
+    C2_OK               = OK,                   ///< operation completed successfully
+
+    // bad input
+    C2_BAD_VALUE        = BAD_VALUE,            ///< argument has invalid value (user error)
+    C2_BAD_INDEX        = BAD_INDEX,            ///< argument uses invalid index (user error)
+    C2_UNSUPPORTED      = UNKNOWN_TRANSACTION,  ///< argument/index is value but not supported \todo is this really BAD_INDEX/VALUE?
+
+    // bad sequencing of events
+    C2_DUPLICATE        = ALREADY_EXISTS,       ///< object already exists
+    C2_NOT_FOUND        = NAME_NOT_FOUND,       ///< object not found
+    C2_BAD_STATE        = INVALID_OPERATION,    ///< operation is not permitted in the current state
+
+    // bad environment
+    C2_NO_MEMORY        = NO_MEMORY,            ///< not enough memory to complete operation
+    C2_NO_PERMISSION    = PERMISSION_DENIED,    ///< missing permission to complete operation
+    C2_TIMED_OUT        = TIMED_OUT,            ///< operation did not complete within timeout
+
+    // bad versioning
+    C2_NOT_IMPLEMENTED  = UNKNOWN_TRANSACTION,  ///< operation is not implemented (optional only) \todo for now reuse error code
+
+    // unknown fatal
+    C2_CORRUPTED        = UNKNOWN_ERROR,        ///< some unexpected error prevented the operation
+};
+
+/// @}
+
+/// \defgroup utils Utilities
+/// @{
+
+#define C2_DO_NOT_COPY(type, args...) \
+    type args& operator=(const type args&) = delete; \
+    type(const type args&) = delete; \
+
+#define C2_PURE __attribute__((pure))
+#define C2_CONST __attribute__((const))
+#define C2_HIDE __attribute__((visibility("hidden")))
+#define C2_INTERNAL __attribute__((internal_linkage))
+
+#define DEFINE_OTHER_COMPARISON_OPERATORS(type) \
+    inline bool operator!=(const type &other) { return !(*this == other); } \
+    inline bool operator<=(const type &other) { return (*this == other) || (*this < other); } \
+    inline bool operator>=(const type &other) { return !(*this < other); } \
+    inline bool operator>(const type &other) { return !(*this < other) && !(*this == other); }
+
+#define DEFINE_FIELD_BASED_COMPARISON_OPERATORS(type, field) \
+    inline bool operator<(const type &other) const { return field < other.field; } \
+    inline bool operator==(const type &other) const { return field == other.field; } \
+    DEFINE_OTHER_COMPARISON_OPERATORS(type)
+
+/// \cond INTERNAL
+
+/// \defgroup utils_internal
+/// @{
+
+template<typename... T> struct c2_types;
+
+/** specialization for a single type */
+template<typename T>
+struct c2_types<T> {
+    typedef typename std::decay<T>::type wide_type;
+    typedef wide_type narrow_type;
+    typedef wide_type mintype;
+};
+
+/** specialization for two types */
+template<typename T, typename U>
+struct c2_types<T, U> {
+    static_assert(std::is_floating_point<T>::value == std::is_floating_point<U>::value,
+                  "mixing floating point and non-floating point types is disallowed");
+    static_assert(std::is_signed<T>::value == std::is_signed<U>::value,
+                  "mixing signed and unsigned types is disallowed");
+
+    typedef typename std::decay<
+            decltype(true ? std::declval<T>() : std::declval<U>())>::type wide_type;
+    typedef typename std::decay<
+            typename std::conditional<sizeof(T) < sizeof(U), T, U>::type>::type narrow_type;
+    typedef typename std::conditional<
+            std::is_signed<T>::value, wide_type, narrow_type>::type mintype;
+};
+
+/// @}
+
+/// \endcond
+
+/**
+ * Type support utility class. Only supports similar classes, such as:
+ * - all floating point
+ * - all unsigned/all signed
+ * - all pointer
+ */
+template<typename T, typename U, typename... V>
+struct c2_types<T, U, V...> {
+    /** Common type that accommodates all template parameter types. */
+    typedef typename c2_types<typename c2_types<T, U>::wide_type, V...>::wide_type wide_type;
+    /** Narrowest type of the template parameter types. */
+    typedef typename c2_types<typename c2_types<T, U>::narrow_type, V...>::narrow_type narrow_type;
+    /** Type that accommodates the minimum value for any input for the template parameter types. */
+    typedef typename c2_types<typename c2_types<T, U>::mintype, V...>::mintype mintype;
+};
+
+/**
+ *  \ingroup utils_internal
+ * specialization for two values */
+template<typename T, typename U>
+inline constexpr typename c2_types<T, U>::wide_type c2_max(const T a, const U b) {
+    typedef typename c2_types<T, U>::wide_type wide_type;
+    return ({ wide_type a_(a), b_(b); a_ > b_ ? a_ : b_; });
+}
+
+/**
+ * Finds the maximum value of a list of "similarly typed" values.
+ *
+ * This is an extension to std::max where the types do not have to be identical, and the smallest
+ * resulting type is used that accommodates the argument types.
+ *
+ * \note Value types must be similar, e.g. all floating point, all pointers, all signed, or all
+ * unsigned.
+ *
+ * @return the largest of the input arguments.
+ */
+template<typename T, typename U, typename... V>
+constexpr typename c2_types<T, U, V...>::wide_type c2_max(const T a, const U b, const V ... c) {
+    typedef typename c2_types<T, U, V...>::wide_type wide_type;
+    return ({ wide_type a_(a), b_(c2_max(b, c...)); a_ > b_ ? a_ : b_; });
+}
+
+/**
+ *  \ingroup utils_internal
+ * specialization for two values */
+template<typename T, typename U>
+inline constexpr typename c2_types<T, U>::mintype c2_min(const T a, const U b) {
+    typedef typename c2_types<T, U>::wide_type wide_type;
+    return ({
+        wide_type a_(a), b_(b);
+        static_cast<typename c2_types<T, U>::mintype>(a_ < b_ ? a_ : b_);
+    });
+}
+
+/**
+ * Finds the minimum value of a list of "similarly typed" values.
+ *
+ * This is an extension to std::min where the types do not have to be identical, and the smallest
+ * resulting type is used that accommodates the argument types.
+ *
+ * \note Value types must be similar, e.g. all floating point, all pointers, all signed, or all
+ * unsigned.
+ *
+ * @return the smallest of the input arguments.
+ */
+template<typename T, typename U, typename... V>
+constexpr typename c2_types<T, U, V...>::mintype c2_min(const T a, const U b, const V ... c) {
+    typedef typename c2_types<U, V...>::mintype rest_type;
+    typedef typename c2_types<T, rest_type>::wide_type wide_type;
+    return ({
+        wide_type a_(a), b_(c2_min(b, c...));
+        static_cast<typename c2_types<T, rest_type>::mintype>(a_ < b_ ? a_ : b_);
+    });
+}
+
+/// @}
+
+#ifdef __ANDROID__
+} // namespace android
+#endif
+
+#endif  // C2_H_
diff --git a/media/libstagefright/codec2/include/C2Buffer.h b/media/libstagefright/codec2/include/C2Buffer.h
new file mode 100644
index 0000000..9f6b487
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2Buffer.h
@@ -0,0 +1,1777 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2BUFFER_H_
+#define C2BUFFER_H_
+
+#include <C2.h>
+#include <C2Param.h> // for C2Info
+
+#include <list>
+#include <memory>
+
+typedef int C2Fence;
+
+#ifdef __ANDROID__
+
+// #include <system/window.h>
+#include <cutils/native_handle.h>
+#include <hardware/gralloc.h> // TODO: remove
+
+typedef native_handle_t C2Handle;
+
+#else
+
+typedef void* C2Handle;
+
+#endif
+
+namespace android {
+
+/// \defgroup buffer Buffers
+/// @{
+
+/// \defgroup buffer_sync Synchronization
+/// @{
+
+/**
+ * Synchronization is accomplished using event and fence objects.
+ *
+ * These are cross-process extensions of promise/future infrastructure.
+ * Events are analogous to std::promise<void>, whereas fences are to std::shared_future<void>.
+ *
+ * Fences and events are shareable/copyable.
+ *
+ * Fences are used in two scenarios, and all copied instances refer to the same event.
+ * \todo do events need to be copyable or should they be unique?
+ *
+ * acquire sync fence object: signaled when it is safe for the component or client to access
+ * (the contents of) an object.
+ *
+ * release sync fence object: \todo
+ *
+ * Fences can be backed by hardware. Hardware fences are guaranteed to signal NO MATTER WHAT within
+ * a short (platform specific) amount of time; this guarantee is usually less than 15 msecs.
+ */
+
+/**
+ * Fence object used by components and the framework.
+ *
+ * Implements the waiting for an event, analogous to a 'future'.
+ *
+ * To be implemented by vendors if using HW fences.
+ */
+class C2Fence {
+public:
+    /**
+     * Waits for a fence to be signaled with a timeout.
+     *
+     * \todo a mechanism to cancel a wait - for now the only way to do this is to abandon the
+     * event, but fences are shared so canceling a wait will cancel all waits.
+     *
+     * \param timeoutNs           the maximum time to wait in nsecs
+     *
+     * \retval C2_OK            the fence has been signaled
+     * \retval C2_TIMED_OUT     the fence has not been signaled within the timeout
+     * \retval C2_BAD_STATE     the fence has been abandoned without being signaled (it will never
+     *                          be signaled)
+     * \retval C2_NO_PERMISSION no permission to wait for the fence (unexpected - system)
+     * \retval C2_CORRUPTED     some unknown error prevented waiting for the fence (unexpected)
+     */
+    C2Error wait(nsecs_t timeoutNs);
+
+    /**
+     * Used to check if this fence is valid (if there is a chance for it to be signaled.)
+     * A fence becomes invalid if the controling event is destroyed without it signaling the fence.
+     *
+     * \return whether this fence is valid
+     */
+    bool valid() const;
+
+    /**
+     * Used to check if this fence has been signaled (is ready).
+     *
+     * \return whether this fence has been signaled
+     */
+    bool ready() const;
+
+    /**
+     * Returns a file descriptor that can be used to wait for this fence in a select system call.
+     * \note The returned file descriptor, if valid, must be closed by the caller.
+     *
+     * This can be used in e.g. poll() system calls. This file becomes readable (POLLIN) when the
+     * fence is signaled, and bad (POLLERR) if the fence is abandoned.
+     *
+     * \return a file descriptor representing this fence (with ownership), or -1 if the fence
+     * has already been signaled (\todo or abandoned).
+     *
+     * \todo this must be compatible with fences used by gralloc
+     */
+    int fd() const;
+
+    /**
+     * Returns whether this fence is a hardware-backed fence.
+     * \return whether this is a hardware fence
+     */
+    bool isHW() const;
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * Event object used by components and the framework.
+ *
+ * Implements the signaling of an event, analogous to a 'promise'.
+ *
+ * Hardware backed events do not go through this object, and must be exposed directly as fences
+ * by vendors.
+ */
+class C2Event {
+public:
+    /**
+     * Returns a fence for this event.
+     */
+    C2Fence fence() const;
+
+    /**
+     * Signals (all) associated fence(s).
+     * This has no effect no effect if the event was already signaled or abandoned.
+     *
+     * \retval C2_OK            the fence(s) were successfully signaled
+     * \retval C2_BAD_STATE     the fence(s) have already been abandoned or merged (caller error)
+     * \retval C2_ALREADY_EXISTS the fence(s) have already been signaled (caller error)
+     * \retval C2_NO_PERMISSION no permission to signal the fence (unexpected - system)
+     * \retval C2_CORRUPTED     some unknown error prevented signaling the fence(s) (unexpected)
+     */
+    C2Error fire();
+
+    /**
+     * Trigger this event from the merging of the supplied fences. This means that it will be
+     * abandoned if any of these fences have been abandoned, and it will be fired if all of these
+     * fences have been signaled.
+     *
+     * \retval C2_OK            the merging was successfully done
+     * \retval C2_NO_MEMORY     not enough memory to perform the merging
+     * \retval C2_ALREADY_EXISTS    the fence have already been merged (caller error)
+     * \retval C2_BAD_STATE     the fence have already been signaled or abandoned (caller error)
+     * \retval C2_NO_PERMISSION no permission to merge the fence (unexpected - system)
+     * \retval C2_CORRUPTED     some unknown error prevented merging the fence(s) (unexpected)
+     */
+    C2Error merge(std::vector<C2Fence> fences);
+
+    /**
+     * Abandons the event and any associated fence(s).
+     * \note Call this to explicitly abandon an event before it is destructed to avoid a warning.
+     *
+     * This has no effect no effect if the event was already signaled or abandoned.
+     *
+     * \retval C2_OK            the fence(s) were successfully signaled
+     * \retval C2_BAD_STATE     the fence(s) have already been signaled or merged (caller error)
+     * \retval C2_ALREADY_EXISTS    the fence(s) have already been abandoned (caller error)
+     * \retval C2_NO_PERMISSION no permission to abandon the fence (unexpected - system)
+     * \retval C2_CORRUPTED     some unknown error prevented signaling the fence(s) (unexpected)
+     */
+    C2Error abandon();
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/// \addtogroup buf_internal Internal
+/// @{
+
+/**
+ * Interface for objects that encapsulate an updatable error value.
+ */
+struct _C2InnateError {
+    inline C2Error error() const { return mError; }
+
+protected:
+    _C2InnateError(C2Error error) : mError(error) { }
+
+    C2Error mError; // this error is updatable by the object
+};
+
+/// @}
+
+/**
+ * This is a utility template for objects protected by an acquire fence, so that errors during
+ * acquiring the object are propagated to the object itself.
+ */
+template<typename T>
+class C2Acquirable : public C2Fence {
+public:
+    /**
+     * Acquires the object protected by an acquire fence. Any errors during the mapping will be
+     * passed to the object.
+     *
+     * \return acquired object potentially invalidated if waiting for the fence failed.
+     */
+    T get();
+
+protected:
+    C2Acquirable(C2Error error, C2Fence fence, T t) : C2Fence(fence), mInitialError(error), mT(t) { }
+
+private:
+    C2Error mInitialError;
+    T mT; // TODO: move instead of copy
+};
+
+/// @}
+
+/// \defgroup linear Linear Data Blocks
+/// @{
+
+/**************************************************************************************************
+  LINEAR ASPECTS, BLOCKS AND VIEWS
+**************************************************************************************************/
+
+/**
+ * Common aspect for all objects that have a linear capacity.
+ */
+class _C2LinearCapacityAspect {
+/// \name Linear capacity interface
+/// @{
+public:
+    inline uint32_t capacity() const { return mCapacity; }
+
+protected:
+
+#if UINTPTR_MAX == 0xffffffff
+    static_assert(sizeof(size_t) == sizeof(uint32_t), "size_t is too big");
+#else
+    static_assert(sizeof(size_t) > sizeof(uint32_t), "size_t is too small");
+    // explicitly disable construction from size_t
+    inline explicit _C2LinearCapacityAspect(size_t capacity) = delete;
+#endif
+
+    inline explicit _C2LinearCapacityAspect(uint32_t capacity)
+      : mCapacity(capacity) { }
+
+    inline explicit _C2LinearCapacityAspect(const _C2LinearCapacityAspect *parent)
+        : mCapacity(parent == nullptr ? 0 : parent->capacity()) { }
+
+private:
+    const uint32_t mCapacity;
+/// @}
+};
+
+/**
+ * Aspect for objects that have a linear range.
+ *
+ * This class is copiable.
+ */
+class _C2LinearRangeAspect : public _C2LinearCapacityAspect {
+/// \name Linear range interface
+/// @{
+public:
+    inline uint32_t offset() const { return mOffset; }
+    inline uint32_t size() const { return mSize; }
+
+protected:
+    inline explicit _C2LinearRangeAspect(const _C2LinearCapacityAspect *parent)
+        : _C2LinearCapacityAspect(parent),
+          mOffset(0),
+          mSize(capacity()) { }
+
+    inline _C2LinearRangeAspect(const _C2LinearCapacityAspect *parent, size_t offset, size_t size)
+        : _C2LinearCapacityAspect(parent),
+          mOffset(c2_min(offset, capacity())),
+          mSize(c2_min(size, capacity() - mOffset)) { }
+
+    // subsection of the two [offset, offset + size] ranges
+    inline _C2LinearRangeAspect(const _C2LinearRangeAspect *parent, size_t offset, size_t size)
+        : _C2LinearCapacityAspect(parent == nullptr ? 0 : parent->capacity()),
+          mOffset(c2_min(c2_max(offset, parent == nullptr ? 0 : parent->offset()), capacity())),
+          mSize(c2_min(c2_min(size, parent == nullptr ? 0 : parent->size()), capacity() - mOffset)) { }
+
+private:
+    friend class _C2EditableLinearRange;
+    // invariants 0 <= mOffset <= mOffset + mSize <= capacity()
+    uint32_t mOffset;
+    uint32_t mSize;
+/// @}
+};
+
+/**
+ * Aspect for objects that have an editable linear range.
+ *
+ * This class is copiable.
+ */
+class _C2EditableLinearRange : public _C2LinearRangeAspect {
+protected:
+    inline explicit _C2EditableLinearRange(const _C2LinearCapacityAspect *parent)
+        : _C2LinearRangeAspect(parent) { }
+
+    inline _C2EditableLinearRange(const _C2LinearCapacityAspect *parent, size_t offset, size_t size)
+        : _C2LinearRangeAspect(parent, offset, size) { }
+
+    // subsection of the two [offset, offset + size] ranges
+    inline _C2EditableLinearRange(const _C2LinearRangeAspect *parent, size_t offset, size_t size)
+        : _C2LinearRangeAspect(parent, offset, size) { }
+
+/// \name Editable linear range interface
+/// @{
+
+    /**
+     * Sets the offset to |offset|, while trying to keep the end of the buffer unchanged (e.g.
+     * size will grow if offset is decreased, and may shrink if offset is increased.) Returns
+     * true if successful, which is equivalent to if 0 <= |offset| <= capacity().
+     *
+     * Note: setting offset and size will yield different result depending on the order of the
+     * operations. Always set offset first to ensure proper size.
+     */
+    inline bool setOffset(uint32_t offset) {
+        if (offset > capacity()) {
+            return false;
+        }
+
+        if (offset > mOffset + mSize) {
+            mSize = 0;
+        } else {
+            mSize = mOffset + mSize - offset;
+        }
+        mOffset = offset;
+        return true;
+    }
+    /**
+     * Sets the size to |size|. Returns true if successful, which is equivalent to
+     * if 0 <= |size| <= capacity() - offset().
+     *
+     * Note: setting offset and size will yield different result depending on the order of the
+     * operations. Always set offset first to ensure proper size.
+     */
+    inline bool setSize(uint32_t size) {
+        if (size > capacity() - mOffset) {
+            return false;
+        } else {
+            mSize = size;
+            return true;
+        }
+    }
+    /**
+     * Sets the offset to |offset| with best effort. Same as setOffset() except that offset will
+     * be clamped to the buffer capacity.
+     *
+     * Note: setting offset and size (even using best effort) will yield different result depending
+     * on the order of the operations. Always set offset first to ensure proper size.
+     */
+    inline void setOffset_be(uint32_t offset) {
+        if (offset > capacity()) {
+            offset = capacity();
+        }
+        if (offset > mOffset + mSize) {
+            mSize = 0;
+        } else {
+            mSize = mOffset + mSize - offset;
+        }
+        mOffset = offset;
+    }
+    /**
+     * Sets the size to |size| with best effort. Same as setSize() except that the selected region
+     * will be clamped to the buffer capacity (e.g. size is clamped to [0, capacity() - offset()]).
+     *
+     * Note: setting offset and size (even using best effort) will yield different result depending
+     * on the order of the operations. Always set offset first to ensure proper size.
+     */
+    inline void setSize_be(uint32_t size) {
+        mSize = std::min(size, capacity() - mOffset);
+    }
+/// @}
+};
+
+// ================================================================================================
+//  BLOCKS
+// ================================================================================================
+
+/**
+ * Blocks are sections of allocations. They can be either 1D or 2D.
+ */
+
+class C2LinearAllocation;
+
+class C2Block1D : public _C2LinearRangeAspect {
+public:
+    const C2Handle *handle() const;
+
+protected:
+    C2Block1D(std::shared_ptr<C2LinearAllocation> alloc);
+    C2Block1D(std::shared_ptr<C2LinearAllocation> alloc, size_t offset, size_t size);
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * Read view provides read-only access for a linear memory segment.
+ *
+ * This class is copiable.
+ */
+class C2ReadView : public _C2LinearCapacityAspect {
+public:
+    /**
+     * \return pointer to the start of the block or nullptr on error.
+     */
+    const uint8_t *data();
+
+    /**
+     * Returns a portion of this view.
+     *
+     * \param offset  the start offset of the portion. \note This is clamped to the capacity of this
+     *              view.
+     * \param size    the size of the portion. \note This is clamped to the remaining data from offset.
+     *
+     * \return a read view containing a portion of this view
+     */
+    C2ReadView subView(size_t offset, size_t size) const;
+
+    /**
+     * \return error during the creation/mapping of this view.
+     */
+    C2Error error();
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * Write view provides read/write access for a linear memory segment.
+ *
+ * This class is copiable. \todo movable only?
+ */
+class C2WriteView : public _C2EditableLinearRange {
+public:
+    /**
+     * Start of the block.
+     *
+     * \return pointer to the start of the block or nullptr on error.
+     */
+    uint8_t *base();
+
+    /**
+     * \return pointer to the block at the current offset or nullptr on error.
+     */
+    uint8_t *data();
+
+    /**
+     * \return error during the creation/mapping of this view.
+     */
+    C2Error error();
+
+private:
+    class Impl;
+    /// \todo should this be unique_ptr to make this movable only - to avoid inconsistent regions
+    /// between copies.
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * A constant (read-only) linear block (portion of an allocation) with an acquire fence.
+ * Blocks are unmapped when created, and can be mapped into a read view on demand.
+ *
+ * This class is copiable and contains a reference to the allocation that it is based on.
+ */
+class C2ConstLinearBlock : public C2Block1D {
+public:
+    /**
+     * Maps this block into memory and returns a read view for it.
+     *
+     * \return a read view for this block.
+     */
+    C2Acquirable<C2ReadView> map() const;
+
+    /**
+     * Returns a portion of this block.
+     *
+     * \param offset  the start offset of the portion. \note This is clamped to the capacity of this
+     *              block.
+     * \param size    the size of the portion. \note This is clamped to the remaining data from offset.
+     *
+     * \return a constant linear block containing a portion of this block
+     */
+    C2ConstLinearBlock subBlock(size_t offset, size_t size) const;
+
+    /**
+     * Returns the acquire fence for this block.
+     *
+     * \return a fence that must be waited on before reading the block.
+     */
+    C2Fence fence() const { return mFence; }
+
+private:
+    C2Fence mFence;
+};
+
+/**
+ * Linear block is a writeable 1D block. Once written, it can be shared in whole or in parts with
+ * consumers/readers as read-only const linear block(s).
+ */
+class C2LinearBlock : public C2Block1D {
+public:
+    /**
+     * Maps this block into memory and returns a write view for it.
+     *
+     * \return a write view for this block.
+     */
+    C2Acquirable<C2WriteView> map();
+
+    /**
+     * Creates a read-only const linear block for a portion of this block; optionally protected
+     * by an acquire fence. There are two ways to use this:
+     *
+     * 1) share ready block after writing data into the block. In this case no fence shall be
+     *    supplied, and the block shall not be modified after calling this method.
+     * 2) share block metadata before actually (finishing) writing the data into the block. In
+     *    this case a fence must be supplied that will be triggered when the data is written.
+     *    The block shall be modified only until firing the event for the fence.
+     */
+    C2ConstLinearBlock share(size_t offset, size_t size, C2Fence fence);
+};
+
+/// @}
+
+/**************************************************************************************************
+  CIRCULAR BLOCKS AND VIEWS
+**************************************************************************************************/
+
+/// \defgroup circular Circular buffer support
+/// @{
+
+/**
+ * Circular blocks can be used to share data between a writer and a reader (and/or other consumers)-
+ * in a memory-efficient way by reusing a section of memory. Circular blocks are a bit more complex
+ * than single reader/single writer schemes to facilitate block-based consuming of data.
+ *
+ * They can operate in two modes:
+ *
+ * 1) one writer that creates blocks to be consumed (this model can be used by components)
+ *
+ * 2) one writer that writes continuously, and one reader that can creates blocks to be consumed
+ *    by further recipients (this model is used by the framework, and cannot be used by components.)
+ *
+ * Circular blocks have four segments with running pointers:
+ *  - reserved: data reserved and available for the writer
+ *  - committed: data committed by the writer and available to the reader (if present)
+ *  - used: data used by consumers (if present)
+ *  - available: unused data available to be reserved
+ */
+class C2CircularBlock : public C2Block1D {
+    // TODO: add methods
+
+private:
+    size_t mReserved __unused;   // end of reserved section
+    size_t mCommitted __unused;  // end of committed section
+    size_t mUsed __unused;       // end of used section
+    size_t mFree __unused;       // end of free section
+};
+
+class _C2CircularBlockSegment : public _C2LinearCapacityAspect {
+public:
+    /**
+     * Returns the available size for this segment.
+     *
+     * \return currently available size for this segment
+     */
+    size_t available() const;
+
+    /**
+     * Reserve some space for this segment from its current start.
+     *
+     * \param size    desired space in bytes
+     * \param fence   a pointer to an acquire fence. If non-null, the reservation is asynchronous and
+     *              a fence will be stored here that will be signaled when the reservation is
+     *              complete. If null, the reservation is synchronous.
+     *
+     * \retval C2_OK            the space was successfully reserved
+     * \retval C2_NO_MEMORY     the space requested cannot be reserved
+     * \retval C2_TIMED_OUT     the reservation timed out \todo when?
+     * \retval C2_CORRUPTED     some unknown error prevented reserving space. (unexpected)
+     */
+    C2Error reserve(size_t size, C2Fence *fence /* nullable */);
+
+    /**
+     * Abandons a portion of this segment. This will move to the beginning of this segment.
+     *
+     * \note This methods is only allowed if this segment is producing blocks.
+     *
+     * \param size    number of bytes to abandon
+     *
+     * \retval C2_OK            the data was successfully abandoned
+     * \retval C2_TIMED_OUT     the operation timed out (unexpected)
+     * \retval C2_CORRUPTED     some unknown error prevented abandoning the data (unexpected)
+     */
+    C2Error abandon(size_t size);
+
+    /**
+     * Share a portion as block(s) with consumers (these are moved to the used section).
+     *
+     * \note This methods is only allowed if this segment is producing blocks.
+     * \note Share does not move the beginning of the segment. (\todo add abandon/offset?)
+     *
+     * \param size    number of bytes to share
+     * \param fence   fence to be used for the section
+     * \param blocks  list where the blocks of the section are appended to
+     *
+     * \retval C2_OK            the portion was successfully shared
+     * \retval C2_NO_MEMORY     not enough memory to share the portion
+     * \retval C2_TIMED_OUT     the operation timed out (unexpected)
+     * \retval C2_CORRUPTED     some unknown error prevented sharing the data (unexpected)
+     */
+    C2Error share(size_t size, C2Fence fence, std::list<C2ConstLinearBlock> &blocks);
+
+    /**
+     * Returns the beginning offset of this segment from the start of this circular block.
+     *
+     * @return beginning offset
+     */
+    size_t begin();
+
+    /**
+     * Returns the end offset of this segment from the start of this circular block.
+     *
+     * @return end offset
+     */
+    size_t end();
+};
+
+/**
+ * A circular write-view is a dynamic mapped view for a segment of a circular block. Care must be
+ * taken when using this view so that only the section owned by the segment is modified.
+ */
+class C2CircularWriteView : public _C2LinearCapacityAspect {
+public:
+    /**
+     * Start of the circular block.
+     * \note the segment does not own this pointer.
+     *
+     * \return pointer to the start of the circular block or nullptr on error.
+     */
+    uint8_t *base();
+
+    /**
+     * \return error during the creation/mapping of this view.
+     */
+    C2Error error();
+};
+
+/**
+ * The writer of a circular buffer.
+ *
+ * Can commit data to a reader (not supported for components) OR share data blocks directly with a
+ * consumer.
+ *
+ * If a component supports outputting data into circular buffers, it must allocate a circular
+ * block and use a circular writer.
+ */
+class C2CircularWriter : public _C2CircularBlockSegment {
+public:
+    /**
+     * Commits a portion of this segment to the next segment. This moves the beginning of the
+     * segment.
+     *
+     * \param size    number of bytes to commit to the next segment
+     * \param fence   fence used for the commit (the fence must signal before the data is committed)
+     */
+    C2Error commit(size_t size, C2Fence fence);
+
+    /**
+     * Maps this block into memory and returns a write view for it.
+     *
+     * \return a write view for this block.
+     */
+    C2Acquirable<C2CircularWriteView> map();
+};
+
+/// @}
+
+/// \defgroup graphic Graphic Data Blocks
+/// @{
+
+/**
+ * Interface for objects that have a width and height (planar capacity).
+ */
+class _C2PlanarCapacityAspect {
+/// \name Planar capacity interface
+/// @{
+public:
+    inline uint32_t width() const { return mWidth; }
+    inline uint32_t height() const { return mHeight; }
+
+protected:
+    inline _C2PlanarCapacityAspect(uint32_t width, uint32_t height)
+      : mWidth(width), mHeight(height) { }
+
+    inline _C2PlanarCapacityAspect(const _C2PlanarCapacityAspect *parent)
+        : mWidth(parent == nullptr ? 0 : parent->width()),
+          mHeight(parent == nullptr ? 0 : parent->height()) { }
+
+private:
+    const uint32_t mWidth;
+    const uint32_t mHeight;
+/// @}
+};
+
+/**
+ * C2Rect: rectangle type with non-negative coordinates.
+ *
+ * \note This struct has public fields without getters/setters. All methods are inline.
+ */
+struct C2Rect {
+// public:
+    uint32_t mLeft;
+    uint32_t mTop;
+    uint32_t mWidth;
+    uint32_t mHeight;
+
+    inline C2Rect(uint32_t width, uint32_t height)
+        : C2Rect(width, height, 0, 0) { }
+
+    inline C2Rect(uint32_t width, uint32_t height, uint32_t left, uint32_t top)
+        : mLeft(left), mTop(top), mWidth(width), mHeight(height) { }
+
+    // utility methods
+
+    inline bool isEmpty() const {
+        return mWidth == 0 || mHeight == 0;
+    }
+
+    inline bool isValid() const {
+        return mLeft <= ~mWidth && mTop <= ~mHeight;
+    }
+
+    inline operator bool() const {
+        return isValid() && !isEmpty();
+    }
+
+    inline bool operator!() const {
+        return !bool(*this);
+    }
+
+    inline bool contains(const C2Rect &other) const {
+        if (!isValid() || !other.isValid()) {
+            return false;
+        } else if (other.isEmpty()) {
+            return true;
+        } else {
+            return mLeft <= other.mLeft && mTop <= other.mTop
+                    && mLeft + mWidth >= other.mLeft + other.mWidth
+                    && mTop + mHeight >= other.mTop + other.mHeight;
+        }
+    }
+
+    inline bool operator==(const C2Rect &other) const {
+        if (!isValid()) {
+            return !other.isValid();
+        } else if (isEmpty()) {
+            return other.isEmpty();
+        } else {
+            return mLeft == other.mLeft && mTop == other.mTop
+                    && mWidth == other.mWidth && mHeight == other.mHeight;
+        }
+    }
+
+    inline bool operator!=(const C2Rect &other) const {
+        return !operator==(other);
+    }
+
+    inline bool operator>=(const C2Rect &other) const {
+        return contains(other);
+    }
+
+    inline bool operator>(const C2Rect &other) const {
+        return contains(other) && !operator==(other);
+    }
+
+    inline bool operator<=(const C2Rect &other) const {
+        return other.contains(*this);
+    }
+
+    inline bool operator<(const C2Rect &other) const {
+        return other.contains(*this) && !operator==(other);
+    }
+};
+
+/**
+ * C2PlaneInfo: information on the layout of flexible planes.
+ *
+ * Public fields without getters/setters.
+ */
+struct C2PlaneInfo {
+// public:
+    enum Channel : uint32_t {
+        Y,
+        R,
+        G,
+        B,
+        A,
+        Cr,
+        Cb,
+    } mChannel;
+
+    int32_t mColInc;               // column increment in bytes. may be negative
+    int32_t mRowInc;               // row increment in bytes. may be negative
+    uint32_t mHorizSubsampling;    // subsampling compared to width
+    uint32_t mVertSubsampling;     // subsampling compared to height
+
+    uint32_t mBitDepth;
+    uint32_t mAllocatedDepth;
+
+    inline ssize_t minOffset(uint32_t width, uint32_t height) {
+        ssize_t offs = 0;
+        if (width > 0 && mColInc < 0) {
+            offs += mColInc * (ssize_t)(width - 1);
+        }
+        if (height > 0 && mRowInc < 0) {
+            offs += mRowInc * (ssize_t)(height - 1);
+        }
+        return offs;
+    }
+
+    inline ssize_t maxOffset(uint32_t width, uint32_t height, uint32_t allocatedDepth) {
+        ssize_t offs = (allocatedDepth + 7) >> 3;
+        if (width > 0 && mColInc > 0) {
+            offs += mColInc * (ssize_t)(width - 1);
+        }
+        if (height > 0 && mRowInc > 0) {
+            offs += mRowInc * (ssize_t)(height - 1);
+        }
+        return offs;
+    }
+};
+
+struct C2PlaneLayout {
+public:
+    enum Type : uint32_t {
+        MEDIA_IMAGE_TYPE_UNKNOWN = 0,
+        MEDIA_IMAGE_TYPE_YUV = 0x100,
+        MEDIA_IMAGE_TYPE_YUVA,
+        MEDIA_IMAGE_TYPE_RGB,
+        MEDIA_IMAGE_TYPE_RGBA,
+    };
+
+    Type mType;
+    uint32_t mNumPlanes;               // number of planes
+
+    enum PlaneIndex : uint32_t {
+        Y = 0,
+        U = 1,
+        V = 2,
+        R = 0,
+        G = 1,
+        B = 2,
+        A = 3,
+        MAX_NUM_PLANES = 4,
+    };
+
+    C2PlaneInfo mPlanes[MAX_NUM_PLANES];
+};
+
+/**
+ * Aspect for objects that have a planar section (crop rectangle).
+ *
+ * This class is copiable.
+ */
+class _C2PlanarSection : public _C2PlanarCapacityAspect {
+/// \name Planar section interface
+/// @{
+public:
+    // crop can be an empty rect, does not have to line up with subsampling
+    // NOTE: we do not support floating-point crop
+    inline const C2Rect crop() { return mCrop; }
+
+    /**
+     *  Sets crop to crop intersected with [(0,0) .. (width, height)]
+     */
+    inline void setCrop_be(const C2Rect &crop);
+
+    /**
+     * If crop is within the dimensions of this object, it sets crop to it.
+     *
+     * \return true iff crop is within the dimensions of this object
+     */
+    inline bool setCrop(const C2Rect &crop);
+
+private:
+    C2Rect mCrop;
+/// @}
+};
+
+class C2Block2D : public _C2PlanarSection {
+public:
+    const C2Handle *handle() const;
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * Graphic view provides read or read-write access for a graphic block.
+ *
+ * This class is copiable.
+ *
+ * \note Due to the subsampling of graphic buffers, a read view must still contain a crop rectangle
+ * to ensure subsampling is followed. This results in nearly identical interface between read and
+ * write views, so C2GraphicView can encompass both of them.
+ */
+class C2GraphicView : public _C2PlanarSection {
+public:
+    /**
+     * \return pointer to the start of the block or nullptr on error.
+     */
+    const uint8_t *data() const;
+
+    /**
+     * \return pointer to the start of the block or nullptr on error.
+     */
+    uint8_t *data();
+
+    /**
+     * Returns a section of this view.
+     *
+     * \param rect    the dimension of the section. \note This is clamped to the crop of this view.
+     *
+     * \return a read view containing the requested section of this view
+     */
+    const C2GraphicView subView(const C2Rect &rect) const;
+    C2GraphicView subView(const C2Rect &rect);
+
+    /**
+     * \return error during the creation/mapping of this view.
+     */
+    C2Error error() const;
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * A constant (read-only) graphic block (portion of an allocation) with an acquire fence.
+ * Blocks are unmapped when created, and can be mapped into a read view on demand.
+ *
+ * This class is copiable and contains a reference to the allocation that it is based on.
+ */
+class C2ConstGraphicBlock : public C2Block2D {
+public:
+    /**
+     * Maps this block into memory and returns a read view for it.
+     *
+     * \return a read view for this block.
+     */
+    C2Acquirable<const C2GraphicView> map() const;
+
+    /**
+     * Returns a section of this block.
+     *
+     * \param rect    the coordinates of the section. \note This is clamped to the crop rectangle of
+     *              this block.
+     *
+     * \return a constant graphic block containing a portion of this block
+     */
+    C2ConstGraphicBlock subBlock(const C2Rect &rect) const;
+
+    /**
+     * Returns the acquire fence for this block.
+     *
+     * \return a fence that must be waited on before reading the block.
+     */
+    C2Fence fence() const { return mFence; }
+
+private:
+    C2Fence mFence;
+};
+
+/**
+ * Graphic block is a writeable 2D block. Once written, it can be shared in whole or in part with
+ * consumers/readers as read-only const graphic block.
+ */
+class C2GraphicBlock : public C2Block2D {
+public:
+    /**
+     * Maps this block into memory and returns a write view for it.
+     *
+     * \return a write view for this block.
+     */
+    C2Acquirable<C2GraphicView> map();
+
+    /**
+     * Creates a read-only const linear block for a portion of this block; optionally protected
+     * by an acquire fence. There are two ways to use this:
+     *
+     * 1) share ready block after writing data into the block. In this case no fence shall be
+     *    supplied, and the block shall not be modified after calling this method.
+     * 2) share block metadata before actually (finishing) writing the data into the block. In
+     *    this case a fence must be supplied that will be triggered when the data is written.
+     *    The block shall be modified only until firing the event for the fence.
+     */
+    C2ConstGraphicBlock share(const C2Rect &crop, C2Fence fence);
+};
+
+/// @}
+
+/// \defgroup buffer_onj Buffer objects
+/// @{
+
+// ================================================================================================
+//  BUFFERS
+// ================================================================================================
+
+/// \todo: Do we still need this?
+///
+// There are 2 kinds of buffers: linear or graphic. Linear buffers can contain a single block, or
+// a list of blocks (LINEAR_CHUNKS). Support for list of blocks is optional, and can allow consuming
+// data from circular buffers or scattered data sources without extra memcpy. Currently, list of
+// graphic blocks is not supported.
+
+class C2LinearBuffer;   // read-write buffer
+class C2GraphicBuffer;  // read-write buffer
+class C2LinearChunksBuffer;
+
+/**
+ * C2BufferData: the main, non-meta data of a buffer. A buffer can contain either linear blocks
+ * or graphic blocks, and can contain either a single block or multiple blocks. This is determined
+ * by its type.
+ */
+class C2BufferData {
+public:
+    /**
+     *  The type of buffer data.
+     */
+    enum Type : uint32_t {
+        LINEAR,             ///< the buffer contains a single linear block
+        LINEAR_CHUNKS,      ///< the buffer contains one or more linear blocks
+        GRAPHIC,            ///< the buffer contains a single graphic block
+        GRAPHIC_CHUNKS,     ///< the buffer contains one of more graphic blocks
+    };
+
+    /**
+     * Gets the type of this buffer (data).
+     * \return the type of this buffer data.
+     */
+    Type type() const;
+
+    /**
+     * Gets the linear blocks of this buffer.
+     * \return a constant list of const linear blocks of this buffer.
+     * \retval empty list if this buffer does not contain linear block(s).
+     */
+    const std::list<C2ConstLinearBlock> linearBlocks() const;
+
+    /**
+     * Gets the graphic blocks of this buffer.
+     * \return a constant list of const graphic blocks of this buffer.
+     * \retval empty list if this buffer does not contain graphic block(s).
+     */
+    const std::list<C2ConstGraphicBlock> graphicBlocks() const;
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+
+protected:
+    // no public constructor
+    // C2BufferData(const std::shared_ptr<const Impl> &impl) : mImpl(impl) {}
+};
+
+/**
+ * C2Buffer: buffer base class. These are always used as shared_ptrs. Though the underlying buffer
+ * objects (native buffers, ion buffers, or dmabufs) are reference-counted by the system,
+ * C2Buffers hold only a single reference.
+ *
+ * These objects cannot be used on the stack.
+ */
+class C2Buffer {
+public:
+    /**
+     * Gets the buffer's data.
+     *
+     * \return the buffer's data.
+     */
+    const C2BufferData data() const;
+
+    /**
+     * These will still work if used in onDeathNotify.
+     */
+#if 0
+    inline std::shared_ptr<C2LinearBuffer> asLinearBuffer() const {
+        return mType == LINEAR ? std::shared_ptr::reinterpret_cast<C2LinearBuffer>(this) : nullptr;
+    }
+
+    inline std::shared_ptr<C2GraphicBuffer> asGraphicBuffer() const {
+        return mType == GRAPHIC ? std::shared_ptr::reinterpret_cast<C2GraphicBuffer>(this) : nullptr;
+    }
+
+    inline std::shared_ptr<C2CircularBuffer> asCircularBuffer() const {
+        return mType == CIRCULAR ? std::shared_ptr::reinterpret_cast<C2CircularBuffer>(this) : nullptr;
+    }
+#endif
+
+    ///@name Pre-destroy notification handling
+    ///@{
+
+    /**
+     * Register for notification just prior to the destruction of this object.
+     */
+    typedef void (*OnDestroyNotify) (const C2Buffer *buf, void *arg);
+
+    /**
+     * Registers for a pre-destroy notification. This is called just prior to the destruction of
+     * this buffer (when this buffer is no longer valid.)
+     *
+     * \param onDestroyNotify   the notification callback
+     * \param arg               an arbitrary parameter passed to the callback
+     *
+     * \retval C2_OK        the registration was successful.
+     * \retval C2_DUPLICATE a notification was already registered for this callback and argument
+     * \retval C2_NO_MEMORY not enough memory to register for this callback
+     * \retval C2_CORRUPTED an unknown error prevented the registration (unexpected)
+     */
+    C2Error registerOnDestroyNotify(OnDestroyNotify *onDestroyNotify, void *arg = nullptr);
+
+    /**
+     * Unregisters a previously registered pre-destroy notification.
+     *
+     * \param onDestroyNotify   the notification callback
+     * \param arg               an arbitrary parameter passed to the callback
+     *
+     * \retval C2_OK        the unregistration was successful.
+     * \retval C2_NOT_FOUND the notification was not found
+     * \retval C2_CORRUPTED an unknown error prevented the registration (unexpected)
+     */
+    C2Error unregisterOnDestroyNotify(OnDestroyNotify *onDestroyNotify, void *arg = nullptr);
+
+    ///@}
+
+    virtual ~C2Buffer() = default;
+
+    ///@name Buffer-specific arbitrary metadata handling
+    ///@{
+
+    /**
+     * Gets the list of metadata associated with this buffer.
+     *
+     * \return a constant list of info objects associated with this buffer.
+     */
+    const std::list<std::shared_ptr<const C2Info>> infos() const;
+
+    /**
+     * Attaches (or updates) an (existing) metadata for this buffer.
+     * If the metadata is stream specific, the stream information will be reset.
+     *
+     * \param info Metadata to update
+     *
+     * \retval C2_OK        the metadata was successfully attached/updated.
+     * \retval C2_NO_MEMORY not enough memory to attach the metadata (this return value is not
+     *                      used if the same kind of metadata is already attached to the buffer).
+     */
+    C2Error setInfo(const std::shared_ptr<C2Info> &info);
+
+    /**
+     * Checks if there is a certain type of metadata attached to this buffer.
+     *
+     * \param index the parameter type of the metadata
+     *
+     * \return true iff there is a metadata with the parameter type attached to this buffer.
+     */
+    bool hasInfo(C2Param::Type index) const;
+    std::shared_ptr<C2Info> removeInfo(C2Param::Type index) const;
+    ///@}
+
+protected:
+    // no public constructor
+    inline C2Buffer() = default;
+
+private:
+//    Type _mType;
+};
+
+/**
+ * An extension of C2Info objects that can contain arbitrary buffer data.
+ *
+ * \note This object is not describable and contains opaque data.
+ */
+class C2InfoBuffer {
+public:
+    /**
+     * Gets the index of this info object.
+     *
+     * \return the parameter index.
+     */
+    const C2Param::Index index() const;
+
+    /**
+     * Gets the buffer's data.
+     *
+     * \return the buffer's data.
+     */
+    const C2BufferData data() const;
+};
+
+/// @}
+
+/**************************************************************************************************
+  ALLOCATIONS
+**************************************************************************************************/
+
+/// \defgroup allocator Allocation and memory placement
+/// @{
+
+/**
+ * Buffer/memory usage bits. These are used by the allocators to select optimal memory type/pool and
+ * buffer layout.
+ *
+ * \note This struct has public fields without getters/setters. All methods are inline.
+ */
+struct C2MemoryUsage {
+// public:
+    // TODO: match these to gralloc1.h
+    enum Consumer : uint64_t {
+        kSoftwareRead        = GRALLOC_USAGE_SW_READ_OFTEN,
+        kRenderScriptRead    = GRALLOC_USAGE_RENDERSCRIPT,
+        kTextureRead         = GRALLOC_USAGE_HW_TEXTURE,
+        kHardwareComposer    = GRALLOC_USAGE_HW_COMPOSER,
+        kHardwareEncoder     = GRALLOC_USAGE_HW_VIDEO_ENCODER,
+        kProtectedRead       = GRALLOC_USAGE_PROTECTED,
+    };
+
+    enum Producer : uint64_t {
+        kSoftwareWrite       = GRALLOC_USAGE_SW_WRITE_OFTEN,
+        kRenderScriptWrite   = GRALLOC_USAGE_RENDERSCRIPT,
+        kTextureWrite        = GRALLOC_USAGE_HW_RENDER,
+        kCompositionTarget   = GRALLOC_USAGE_HW_COMPOSER | GRALLOC_USAGE_HW_RENDER,
+        kHardwareDecoder     = GRALLOC_USAGE_HW_VIDEO_ENCODER,
+        kProtectedWrite      = GRALLOC_USAGE_PROTECTED,
+    };
+
+    uint64_t mConsumer; // e.g. input
+    uint64_t mProducer; // e.g. output
+};
+
+/**
+ * \ingroup linear allocator
+ * 1D allocation interface.
+ */
+class C2LinearAllocation : public _C2LinearCapacityAspect {
+public:
+    /**
+     * Maps a portion of an allocation starting from |offset| with |size| into local process memory.
+     * Stores the starting address into |addr|, or NULL if the operation was unsuccessful.
+     * |fenceFd| is a file descriptor referring to an acquire sync fence object. If it is already
+     * safe to access the buffer contents, then -1.
+     *
+     * \param offset          starting position of the portion to be mapped (this does not have to
+     *                      be page aligned)
+     * \param size            size of the portion to be mapped (this does not have to be page
+     *                      aligned)
+     * \param usage           the desired usage. \todo this must be kSoftwareRead and/or
+     *                      kSoftwareWrite.
+     * \param fenceFd         a pointer to a file descriptor if an async mapping is requested. If
+     *                      not-null, and acquire fence FD will be stored here on success, or -1
+     *                      on failure. If null, the mapping will be synchronous.
+     * \param addr            a pointer to where the starting address of the mapped portion will be
+     *                      stored. On failure, nullptr will be stored here.
+     *
+     * \todo Only one portion can be mapped at the same time - this is true for gralloc, but there
+     *       is no need for this for 1D buffers.
+     * \todo Do we need to support sync operation as we could just wait for the fence?
+     *
+     * \retval C2_OK        the operation was successful
+     * \retval C2_NO_PERMISSION no permission to map the portion
+     * \retval C2_TIMED_OUT the operation timed out
+     * \retval C2_NO_MEMORY not enough memory to complete the operation
+     * \retval C2_BAD_VALUE the parameters (offset/size) are invalid or outside the allocation, or
+     *                      the usage flags are invalid (caller error)
+     * \retval C2_CORRUPTED some unknown error prevented the operation from completing (unexpected)
+     */
+    virtual C2Error map(
+            size_t offset, size_t size, C2MemoryUsage usage, int *fenceFd /* nullable */,
+            void **addr /* nonnull */) = 0;
+
+    /**
+     * Unmaps a portion of an allocation at |addr| with |size|. These must be parameters previously
+     * passed to |map|; otherwise, this operation is a no-op.
+     *
+     * \param addr            starting address of the mapped region
+     * \param size            size of the mapped region
+     * \param fenceFd         a pointer to a file descriptor if an async unmapping is requested. If
+     *                      not-null, a release fence FD will be stored here on success, or -1
+     *                      on failure. This fence signals when the original allocation contains
+     *                      any changes that happened to the mapped region. If null, the unmapping
+     *                      will be synchronous.
+     *
+     * \retval C2_OK        the operation was successful
+     * \retval C2_TIMED_OUT the operation timed out
+     * \retval C2_BAD_VALUE the parameters (addr/size) do not correspond to previously mapped
+     *                      regions (caller error)
+     * \retval C2_CORRUPTED some unknown error prevented the operation from completing (unexpected)
+     * \retval C2_NO_PERMISSION no permission to unmap the portion (unexpected - system)
+     */
+    virtual C2Error unmap(void *addr, size_t size, int *fenceFd /* nullable */) = 0;
+
+    /**
+     * Returns true if this is a valid allocation.
+     *
+     * \todo remove?
+     */
+    virtual bool isValid() const = 0;
+
+    /**
+     * Returns a pointer to the allocation handle.
+     */
+    virtual const C2Handle *handle() const = 0;
+
+    /**
+     * Returns true if this is the same allocation as |other|.
+     */
+    virtual bool equals(const std::shared_ptr<C2LinearAllocation> &other) const = 0;
+
+protected:
+    // \todo should we limit allocation directly?
+    C2LinearAllocation(size_t capacity) : _C2LinearCapacityAspect(c2_min(capacity, UINT32_MAX)) {}
+    virtual ~C2LinearAllocation() = default;
+};
+
+/**
+ * \ingroup graphic allocator
+ * 2D allocation interface.
+ */
+class C2GraphicAllocation : public _C2PlanarCapacityAspect {
+public:
+    /**
+     * Maps a rectangular section (as defined by |rect|) of a 2D allocation into local process
+     * memory for flexible access. On success, it fills out |layout| with the plane specifications
+     * and fills the |addr| array with pointers to the first byte of the top-left pixel of each
+     * plane used. Otherwise, it leaves |layout| and |addr| untouched. |fenceFd| is a file
+     * descriptor referring to an acquire sync fence object. If it is already safe to access the
+     * buffer contents, then -1.
+     *
+     * \note Only one portion of the graphic allocation can be mapped at the same time. (This is
+     * from gralloc1 limitation.)
+     *
+     * \param rect            section to be mapped (this does not have to be aligned)
+     * \param usage           the desired usage. \todo this must be kSoftwareRead and/or
+     *                      kSoftwareWrite.
+     * \param fenceFd         a pointer to a file descriptor if an async mapping is requested. If
+     *                      not-null, and acquire fence FD will be stored here on success, or -1
+     *                      on failure. If null, the mapping will be synchronous.
+     * \param layout          a pointer to where the mapped planes' descriptors will be
+     *                      stored. On failure, nullptr will be stored here.
+     *
+     * \todo Do we need to support sync operation as we could just wait for the fence?
+     *
+     * \retval C2_OK        the operation was successful
+     * \retval C2_NO_PERMISSION no permission to map the section
+     * \retval C2_ALREADY_EXISTS there is already a mapped region (caller error)
+     * \retval C2_TIMED_OUT the operation timed out
+     * \retval C2_NO_MEMORY not enough memory to complete the operation
+     * \retval C2_BAD_VALUE the parameters (rect) are invalid or outside the allocation, or the
+     *                      usage flags are invalid (caller error)
+     * \retval C2_CORRUPTED some unknown error prevented the operation from completing (unexpected)
+
+     */
+    virtual C2Error map(
+            C2Rect rect, C2MemoryUsage usage, int *fenceFd,
+            // TODO: return <addr, size> buffers with plane sizes
+            C2PlaneLayout *layout /* nonnull */, uint8_t **addr /* nonnull */) = 0;
+
+    /**
+     * Unmaps the last mapped rectangular section.
+     *
+     * \param fenceFd         a pointer to a file descriptor if an async unmapping is requested. If
+     *                      not-null, a release fence FD will be stored here on success, or -1
+     *                      on failure. This fence signals when the original allocation contains
+     *                      any changes that happened to the mapped section. If null, the unmapping
+     *                      will be synchronous.
+     *
+     * \retval C2_OK        the operation was successful
+     * \retval C2_TIMED_OUT the operation timed out
+     * \retval C2_NOT_FOUND there is no mapped region (caller error)
+     * \retval C2_CORRUPTED some unknown error prevented the operation from completing (unexpected)
+     * \retval C2_NO_PERMISSION no permission to unmap the section (unexpected - system)
+     */
+    virtual C2Error unmap(C2Fence *fenceFd /* nullable */) = 0;
+
+    /**
+     * Returns true if this is a valid allocation.
+     *
+     * \todo remove?
+     */
+    virtual bool isValid() const = 0;
+
+    /**
+     * Returns a pointer to the allocation handle.
+     */
+    virtual const C2Handle *handle() const = 0;
+
+    /**
+     * Returns true if this is the same allocation as |other|.
+     */
+    virtual bool equals(const std::shared_ptr<const C2GraphicAllocation> &other) = 0;
+
+protected:
+    virtual ~C2GraphicAllocation();
+};
+
+/**
+ *  Allocators are used by the framework to allocate memory (allocations) for buffers. They can
+ *  support either 1D or 2D allocations.
+ *
+ *  \note In theory they could support both, but in practice, we will use only one or the other.
+ *
+ *  Never constructed on stack.
+ *
+ *  Allocators are provided by vendors.
+ */
+class C2Allocator {
+public:
+    /**
+     * Allocates a 1D allocation of given |capacity| and |usage|. If successful, the allocation is
+     * stored in |allocation|. Otherwise, |allocation| is set to 'nullptr'.
+     *
+     * \param capacity        the size of requested allocation (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param usage           the memory usage info for the requested allocation. \note that the
+     *                      returned allocation may be later used/mapped with different usage.
+     *                      The allocator should layout the buffer to be optimized for this usage,
+     *                      but must support any usage. One exception: protected buffers can
+     *                      only be used in a protected scenario.
+     * \param allocation      pointer to where the allocation shall be stored on success. nullptr
+     *                      will be stored here on failure
+     *
+     * \retval C2_OK        the allocation was successful
+     * \retval C2_NO_MEMORY not enough memory to complete the allocation
+     * \retval C2_TIMED_OUT the allocation timed out
+     * \retval C2_NO_PERMISSION     no permission to complete the allocation
+     * \retval C2_BAD_VALUE capacity or usage are not supported (invalid) (caller error)
+     * \retval C2_UNSUPPORTED       this allocator does not support 1D allocations
+     * \retval C2_CORRUPTED some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error allocateLinearBuffer(
+            uint32_t capacity __unused, C2MemoryUsage usage __unused,
+            std::shared_ptr<C2LinearAllocation> *allocation /* nonnull */) {
+        *allocation = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+    /**
+     * (Re)creates a 1D allocation from a native |handle|. If successful, the allocation is stored
+     * in |allocation|. Otherwise, |allocation| is set to 'nullptr'.
+     *
+     * \param handle      the handle for the existing allocation
+     * \param allocation  pointer to where the allocation shall be stored on success. nullptr
+     *                  will be stored here on failure
+     *
+     * \retval C2_OK        the allocation was recreated successfully
+     * \retval C2_NO_MEMORY not enough memory to recreate the allocation
+     * \retval C2_TIMED_OUT the recreation timed out (unexpected)
+     * \retval C2_NO_PERMISSION     no permission to recreate the allocation
+     * \retval C2_BAD_VALUE invalid handle (caller error)
+     * \retval C2_UNSUPPORTED       this allocator does not support 1D allocations
+     * \retval C2_CORRUPTED some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error recreateLinearBuffer(
+            const C2Handle *handle __unused,
+            std::shared_ptr<C2LinearAllocation> *allocation /* nonnull */) {
+        *allocation = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+    /**
+     * Allocates a 2D allocation of given |width|, |height|, |format| and |usage|. If successful,
+     * the allocation is stored in |allocation|. Otherwise, |allocation| is set to 'nullptr'.
+     *
+     * \param width           the width of requested allocation (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param height          the height of requested allocation (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param format          the pixel format of requested allocation. This could be a vendor
+     *                      specific format.
+     * \param usage           the memory usage info for the requested allocation. \note that the
+     *                      returned allocation may be later used/mapped with different usage.
+     *                      The allocator should layout the buffer to be optimized for this usage,
+     *                      but must support any usage. One exception: protected buffers can
+     *                      only be used in a protected scenario.
+     * \param allocation      pointer to where the allocation shall be stored on success. nullptr
+     *                      will be stored here on failure
+     *
+     * \retval C2_OK        the allocation was successful
+     * \retval C2_NO_MEMORY not enough memory to complete the allocation
+     * \retval C2_TIMED_OUT the allocation timed out
+     * \retval C2_NO_PERMISSION     no permission to complete the allocation
+     * \retval C2_BAD_VALUE width, height, format or usage are not supported (invalid) (caller error)
+     * \retval C2_UNSUPPORTED       this allocator does not support 2D allocations
+     * \retval C2_CORRUPTED some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error allocateGraphicBuffer(
+            uint32_t width __unused, uint32_t height __unused, uint32_t format __unused,
+            C2MemoryUsage usage __unused,
+            std::shared_ptr<C2GraphicAllocation> *allocation /* nonnull */) {
+        *allocation = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+    /**
+     * (Re)creates a 2D allocation from a native handle.  If successful, the allocation is stored
+     * in |allocation|. Otherwise, |allocation| is set to 'nullptr'.
+     *
+     * \param handle      the handle for the existing allocation
+     * \param allocation  pointer to where the allocation shall be stored on success. nullptr
+     *                  will be stored here on failure
+     *
+     * \retval C2_OK        the allocation was recreated successfully
+     * \retval C2_NO_MEMORY not enough memory to recreate the allocation
+     * \retval C2_TIMED_OUT the recreation timed out (unexpected)
+     * \retval C2_NO_PERMISSION     no permission to recreate the allocation
+     * \retval C2_BAD_VALUE invalid handle (caller error)
+     * \retval C2_UNSUPPORTED       this allocator does not support 2D allocations
+     * \retval C2_CORRUPTED some unknown, unrecoverable error occured during recreation (unexpected)
+     */
+    virtual C2Error recreateGraphicBuffer(
+            const C2Handle *handle __unused,
+            std::shared_ptr<C2GraphicAllocation> *allocation /* nonnull */) {
+        *allocation = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+protected:
+    C2Allocator() = default;
+
+    virtual ~C2Allocator() = default;
+};
+
+/**
+ *  Block allocators are used by components to allocate memory for output buffers. They can
+ *  support either linear (1D), circular (1D) or graphic (2D) allocations.
+ *
+ *  Never constructed on stack.
+ *
+ *  Block allocators are provided by the framework.
+ */
+class C2BlockAllocator {
+public:
+    /**
+     * Allocates a linear writeable block of given |capacity| and |usage|. If successful, the
+     * block is stored in |block|. Otherwise, |block| is set to 'nullptr'.
+     *
+     * \param capacity        the size of requested block.
+     * \param usage           the memory usage info for the requested allocation. \note that the
+     *                      returned allocation may be later used/mapped with different usage.
+     *                      The allocator shall lay out the buffer to be optimized for this usage,
+     *                      but must support any usage. One exception: protected buffers can
+     *                      only be used in a protected scenario.
+     * \param block      pointer to where the allocated block shall be stored on success. nullptr
+     *                      will be stored here on failure
+     *
+     * \retval C2_OK        the allocation was successful
+     * \retval C2_NO_MEMORY not enough memory to complete the allocation
+     * \retval C2_TIMED_OUT the allocation timed out
+     * \retval C2_NO_PERMISSION     no permission to complete the allocation
+     * \retval C2_BAD_VALUE capacity or usage are not supported (invalid) (caller error)
+     * \retval C2_UNSUPPORTED       this allocator does not support linear allocations
+     * \retval C2_CORRUPTED some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error allocateLinearBlock(
+            uint32_t capacity __unused, C2MemoryUsage usage __unused,
+            std::shared_ptr<C2LinearBlock> *block /* nonnull */) {
+        *block = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+    /**
+     * Allocates a circular writeable block of given |capacity| and |usage|. If successful, the
+     * block is stored in |block|. Otherwise, |block| is set to 'nullptr'.
+     *
+     * \param capacity        the size of requested circular block. (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param usage           the memory usage info for the requested allocation. \note that the
+     *                      returned allocation may be later used/mapped with different usage.
+     *                      The allocator shall lay out the buffer to be optimized for this usage,
+     *                      but must support any usage. One exception: protected buffers can
+     *                      only be used in a protected scenario.
+     * \param block      pointer to where the allocated block shall be stored on success. nullptr
+     *                      will be stored here on failure
+     *
+     * \retval C2_OK            the allocation was successful
+     * \retval C2_NO_MEMORY     not enough memory to complete the allocation
+     * \retval C2_TIMED_OUT     the allocation timed out
+     * \retval C2_NO_PERMISSION     no permission to complete the allocation
+     * \retval C2_BAD_VALUE     capacity or usage are not supported (invalid) (caller error)
+     * \retval C2_UNSUPPORTED   this allocator does not support circular allocations
+     * \retval C2_CORRUPTED     some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error allocateCircularBlock(
+            uint32_t capacity __unused, C2MemoryUsage usage __unused,
+            std::shared_ptr<C2CircularBlock> *block /* nonnull */) {
+        *block = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+    /**
+     * Allocates a 2D graphic block of given |width|, |height|, |format| and |usage|. If successful,
+     * the allocation is stored in |block|. Otherwise, |block| is set to 'nullptr'.
+     *
+     * \param width           the width of requested allocation (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param height          the height of requested allocation (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param format          the pixel format of requested allocation. This could be a vendor
+     *                      specific format.
+     * \param usage           the memory usage info for the requested allocation. \note that the
+     *                      returned allocation may be later used/mapped with different usage.
+     *                      The allocator should layout the buffer to be optimized for this usage,
+     *                      but must support any usage. One exception: protected buffers can
+     *                      only be used in a protected scenario.
+     * \param block      pointer to where the allocation shall be stored on success. nullptr
+     *                      will be stored here on failure
+     *
+     * \retval C2_OK            the allocation was successful
+     * \retval C2_NO_MEMORY     not enough memory to complete the allocation
+     * \retval C2_TIMED_OUT     the allocation timed out
+     * \retval C2_NO_PERMISSION     no permission to complete the allocation
+     * \retval C2_BAD_VALUE     width, height, format or usage are not supported (invalid) (caller error)
+     * \retval C2_UNSUPPORTED   this allocator does not support 2D allocations
+     * \retval C2_CORRUPTED     some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error allocateGraphicBlock(
+            uint32_t width __unused, uint32_t height __unused, uint32_t format __unused,
+            C2MemoryUsage usage __unused,
+            std::shared_ptr<C2GraphicBlock> *block /* nonnull */) {
+        *block = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+protected:
+    C2BlockAllocator() = default;
+
+    virtual ~C2BlockAllocator() = default;
+};
+
+/// @}
+
+/// \cond INTERNAL
+
+/// \todo These are no longer used
+
+/// \addtogroup linear
+/// @{
+
+/** \deprecated */
+class C2LinearBuffer
+    : public C2Buffer, public _C2LinearRangeAspect,
+      public std::enable_shared_from_this<C2LinearBuffer> {
+public:
+    /** \todo what is this? */
+    const C2Handle *handle() const;
+
+protected:
+    inline C2LinearBuffer(const C2ConstLinearBlock &block);
+
+private:
+    class Impl;
+    Impl *mImpl;
+};
+
+class C2ReadCursor;
+
+class C2WriteCursor {
+public:
+    uint32_t remaining() const; // remaining data to be read
+    void commit(); // commits the current position. discard data before current position
+    void reset() const;  // resets position to the last committed position
+    // slices off at most |size| bytes, and moves cursor ahead by the number of bytes
+    // sliced off.
+    C2ReadCursor slice(uint32_t size) const;
+    // slices off at most |size| bytes, and moves cursor ahead by the number of bytes
+    // sliced off.
+    C2WriteCursor reserve(uint32_t size);
+    // bool read(T&);
+    // bool write(T&);
+    C2Fence waitForSpace(uint32_t size);
+};
+
+/// @}
+
+/// \addtogroup graphic
+/// @{
+
+struct C2ColorSpace {
+//public:
+    enum Standard {
+        BT601,
+        BT709,
+        BT2020,
+        // TODO
+    };
+
+    enum Range {
+        LIMITED,
+        FULL,
+        // TODO
+    };
+
+    enum TransferFunction {
+        BT709Transfer,
+        BT2020Transfer,
+        HybridLogGamma2,
+        HybridLogGamma4,
+        // TODO
+    };
+};
+
+/** \deprecated */
+class C2GraphicBuffer : public C2Buffer {
+public:
+    // constant attributes
+    inline uint32_t width() const  { return mWidth; }
+    inline uint32_t height() const { return mHeight; }
+    inline uint32_t format() const { return mFormat; }
+    inline const C2MemoryUsage usage() const { return mUsage; }
+
+    // modifiable attributes
+
+
+    virtual const C2ColorSpace colorSpace() const = 0;
+    // best effort
+    virtual void setColorSpace_be(const C2ColorSpace &colorSpace) = 0;
+    virtual bool setColorSpace(const C2ColorSpace &colorSpace) = 0;
+
+    const C2Handle *handle() const;
+
+protected:
+    uint32_t mWidth;
+    uint32_t mHeight;
+    uint32_t mFormat;
+    C2MemoryUsage mUsage;
+
+    class Impl;
+    Impl *mImpl;
+};
+
+/// @}
+
+/// \endcond
+
+/// @}
+
+}  // namespace android
+
+#endif  // C2BUFFER_H_
diff --git a/media/libstagefright/codec2/include/C2Component.h b/media/libstagefright/codec2/include/C2Component.h
new file mode 100644
index 0000000..1ee9302
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2Component.h
@@ -0,0 +1,685 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2COMPONENT_H_
+
+#define C2COMPONENT_H_
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include <list>
+#include <memory>
+#include <vector>
+#include <functional>
+
+#include <C2Param.h>
+#include <C2Work.h>
+
+namespace android {
+
+/// \defgroup components Components
+/// @{
+
+class C2Component;
+
+class C2ComponentListener {
+public:
+    virtual void onWorkDone(std::weak_ptr<C2Component> component,
+                            std::vector<std::unique_ptr<C2Work>> workItems) = 0;
+
+    virtual void onTripped(std::weak_ptr<C2Component> component,
+                           std::vector<std::shared_ptr<C2SettingResult>> settingResult) = 0;
+
+    virtual void onError(std::weak_ptr<C2Component> component,
+                         uint32_t errorCode) = 0;
+
+    // virtual void onTunnelReleased(<from>, <to>) = 0;
+
+    // virtual void onComponentReleased(<id>) = 0;
+
+protected:
+    virtual ~C2ComponentListener();
+};
+
+/**
+ * Component interface object. This object contains all of the configuration of a potential or
+ * actual component. It can be created and used independently of an actual C2Component instance to
+ * query support and parameters for various component settings and configurations for a potential
+ * component. Actual components also expose this interface.
+ */
+
+class C2ComponentInterface {
+public:
+    // ALWAYS AVAILABLE METHODS
+    // =============================================================================================
+
+    /**
+     * Returns the name of this component or component interface object.
+     * This is a unique name for this component or component interface 'class'; however, multiple
+     * instances of this component SHALL have the same name.
+     *
+     * This method MUST be supported in any state. This call does not change the state nor the
+     * internal states of the component.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \return the name of this component or component interface object.
+     * \retval an empty string if there was not enough memory to allocate the actual name.
+     */
+    virtual C2String getName() const = 0;
+
+    /**
+     * Returns a unique ID for this component or interface object.
+     * This ID is used as work targets, unique work IDs, and when configuring tunneling.
+     *
+     * This method MUST be supported in any state. This call does not change the state nor the
+     * internal states of the component.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \return a unique node ID for this component or component interface instance.
+     */
+    virtual node_id getId() const = 0;
+
+    /**
+     * Queries a set of parameters from the component or interface object.
+     * Querying is performed at best effort: the component SHALL query all supported parameters and
+     * skip unsupported ones, or heap allocated parameters that could not be allocated. Any errors
+     * are communicated in the return value. Additionally, preallocated (e.g. stack) parameters that
+     * could not be queried are invalidated. Parameters to be allocated on the heap are omitted from
+     * the result.
+     *
+     * \note Parameter values do not depend on the order of query.
+     *
+     * \todo This method cannot be used to query info-buffers. Is that a problem?
+     *
+     * This method MUST be supported in any state. This call does not change the state nor the
+     * internal states of the component.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \param[in,out] stackParams   a list of params queried. These are initialized specific to each
+     *                      setting; e.g. size and index are set and rest of the members are
+     *                      cleared.
+     *                      \note Flexible settings that are of incorrect size will be invalidated.
+     * \param[in] heapParamIndices a vector of param indices for params to be queried and returned on the
+     *                      heap. These parameters will be returned in heapParams. Unsupported param
+     *                      indices will be ignored.
+     * \param[out] heapParams    a list of params where to which the supported heap parameters will be
+     *                      appended in the order they appear in heapParamIndices.
+     *
+     * \retval C2_OK        all parameters could be queried
+     * \retval C2_BAD_INDEX all supported parameters could be queried, but some parameters were not
+     *                      supported
+     * \retval C2_NO_MEMORY could not allocate memory for a supported parameter
+     * \retval C2_CORRUPTED some unknown error prevented the querying of the parameters
+     *                      (unexpected)
+     */
+    virtual status_t query_nb(
+        const std::vector<C2Param* const> &stackParams,
+        const std::vector<C2Param::Index> &heapParamIndices,
+        std::vector<std::unique_ptr<C2Param>>* const heapParams) const = 0;
+
+    /**
+     * Sets a set of parameters for the component or interface object.
+     * Tuning is performed at best effort: the component SHALL update all supported configuration at
+     * best effort (unless configured otherwise) and skip unsupported ones. Any errors are
+     * communicated in the return value and in |failures|.
+     *
+     * \note Parameter tuning DOES depend on the order of the tuning parameters. E.g. some parameter
+     * update may allow some subsequent parameter update.
+     *
+     * This method MUST be supported in any state.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \param[in,out] params          a list of parameter updates. These will be updated to the actual
+     *                      parameter values after the updates (this is because tuning is performed
+     *                      at best effort).
+     *                      \todo params that could not be updated are not marked here, so are
+     *                      confusing - are they "existing" values or intended to be configured
+     *                      values?
+     * \param[out] failures        a list of parameter failures
+     *
+     * \retval C2_OK        all parameters could be updated successfully
+     * \retval C2_BAD_INDEX all supported parameters could be updated successfully, but some
+     *                      parameters were not supported
+     * \retval C2_BAD_VALUE some supported parameters could not be updated successfully because
+     *                      they contained unsupported values. These are returned in |failures|.
+     * \retval C2_NO_MEMORY some supported parameters could not be updated successfully because
+     *                      they contained unsupported values, but could not allocate a failure
+     *                      object for them.
+     * \retval C2_CORRUPTED some unknown error prevented the update of the parameters
+     *                      (unexpected)
+     */
+    virtual status_t config_nb(
+            const std::vector<C2Param* const> &params,
+            std::vector<std::unique_ptr<C2SettingResult>>* const failures) = 0;
+
+    /**
+     * Atomically sets a set of parameters for the component or interface object.
+     *
+     * \note This method is used mainly for reserving resources for a component.
+     *
+     * The component SHALL update all supported configuration at
+     * best effort(TBD) (unless configured otherwise) and skip unsupported ones. Any errors are
+     * communicated in the return value and in |failures|.
+     *
+     * \note Parameter tuning DOES depend on the order of the tuning parameters. E.g. some parameter
+     * update may allow some subsequent parameter update.
+     *
+     * This method MUST be supported in any state.
+     *
+     * This method may be momentarily blocking, but MUST return within 5ms.
+     *
+     * \param params[in,out]          a list of parameter updates. These will be updated to the actual
+     *                      parameter values after the updates (this is because tuning is performed
+     *                      at best effort).
+     *                      \todo params that could not be updated are not marked here, so are
+     *                      confusing - are they "existing" values or intended to be configured
+     *                      values?
+     * \param failures[out]        a list of parameter failures
+     *
+     * \retval C2_OK        all parameters could be updated successfully
+     * \retval C2_BAD_INDEX all supported parameters could be updated successfully, but some
+     *                      parameters were not supported
+     * \retval C2_BAD_VALUE some supported parameters could not be updated successfully because
+     *                      they contained unsupported values. These are returned in |failures|.
+     * \retval C2_NO_MEMORY some supported parameters could not be updated successfully because
+     *                      they contained unsupported values, but could not allocate a failure
+     *                      object for them.
+     * \retval C2_CORRUPTED some unknown error prevented the update of the parameters
+     *                      (unexpected)
+     */
+    virtual status_t commit_sm(
+            const std::vector<C2Param* const> &params,
+            std::vector<std::unique_ptr<C2SettingResult>>* const failures) = 0;
+
+    // TUNNELING
+    // =============================================================================================
+
+    /**
+     * Creates a tunnel from this component to the target component.
+     *
+     * If the component is successfully created, subsequent work items queued may include a
+     * tunneled path between these components.
+     *
+     * This method MUST be supported in any state.
+     *
+     * This method may be momentarily blocking, but MUST return within 5ms.
+     *
+     * \retval C2_OK        the tunnel was successfully created
+     * \retval C2_BAD_INDEX the target component does not exist
+     * \retval C2_ALREADY_EXIST the tunnel already exists
+     * \retval C2_UNSUPPORTED  the tunnel is not supported
+     *
+     * \retval C2_TIMED_OUT could not create the tunnel within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the creation of the tunnel (unexpected)
+     */
+    virtual status_t createTunnel_sm(node_id targetComponent) = 0;
+
+    /**
+     * Releases a tunnel from this component to the target component.
+     *
+     * The release of a tunnel is delayed while there are pending work items for the tunnel.
+     * After releasing a tunnel, subsequent work items queued MUST NOT include a tunneled
+     * path between these components.
+     *
+     * This method MUST be supported in any state.
+     *
+     * This method may be momentarily blocking, but MUST return within 5ms.
+     *
+     * \retval C2_OK        the tunnel was marked for release successfully
+     * \retval C2_BAD_INDEX the target component does not exist
+     * \retval C2_NOT_FOUND the tunnel does not exist
+     *
+     * \retval C2_TIMED_OUT could not mark the tunnel for release within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the release of the tunnel (unexpected)
+     */
+    virtual status_t releaseTunnel_sm(node_id targetComponent) = 0;
+
+
+    // REFLECTION MECHANISM (USED FOR EXTENSION)
+    // =============================================================================================
+
+    /**
+     * Returns the parameter reflector.
+     *
+     * This is used to describe parameter fields.
+     *
+     * \return a shared parameter reflector object.
+     */
+    virtual std::shared_ptr<C2ParamReflector> getParamReflector() const = 0;
+
+    /**
+     * Returns the set of supported parameters.
+     *
+     * \param[out] params a vector of supported parameters will be appended to this vector.
+     *
+     * \retval C2_OK        the operation completed successfully.
+     * \retval C2_NO_MEMORY not enough memory to complete this method.
+     */
+    virtual status_t getSupportedParams(
+            std::vector<std::shared_ptr<C2ParamDescriptor>> * const params) const = 0;
+
+    /**
+     *
+     * \todo should this take a list considering that setting some fields may further limit other
+     * fields in the same list?
+     */
+    virtual status_t getSupportedValues(
+            const std::vector<const C2ParamField> fields,
+            std::vector<C2FieldSupportedValues>* const values) const = 0;
+
+    virtual ~C2ComponentInterface() = default;
+};
+
+class C2Component {
+public:
+    // METHODS AVAILABLE WHEN RUNNING
+    // =============================================================================================
+
+    /**
+     * Queues up work for the component.
+     *
+     * This method MUST be supported in running (including tripped) states.
+     *
+     * This method MUST be "non-blocking" and return within 1ms
+     *
+     * It is acceptable for this method to return OK and return an error value using the
+     * onWorkDone() callback.
+     *
+     * \retval C2_OK        the work was successfully queued
+     * \retval C2_BAD_INDEX some component(s) in the work do(es) not exist
+     * \retval C2_UNSUPPORTED  the components are not tunneled
+     *
+     * \retval C2_NO_MEMORY not enough memory to queue the work
+     * \retval C2_CORRUPTED some unknown error prevented queuing the work (unexpected)
+     */
+    virtual status_t queue_nb(std::list<std::unique_ptr<C2Work>>* const items) = 0;
+
+    /**
+     * Announces a work to be queued later for the component. This reserves a slot for the queue
+     * to ensure correct work ordering even if the work is queued later.
+     *
+     * This method MUST be supported in running (including tripped) states.
+     *
+     * This method MUST be "non-blocking" and return within 1 ms
+     *
+     * \retval C2_OK        the work announcement has been successfully recorded
+     * \retval C2_BAD_INDEX some component(s) in the work outline do(es) not exist
+     * \retval C2_UNSUPPORTED  the componentes are not tunneled
+     *
+     * \retval C2_NO_MEMORY not enough memory to record the work announcement
+     * \retval C2_CORRUPTED some unknown error prevented recording the announcement (unexpected)
+     *
+     * \todo Can this be rolled into queue_nb?
+     */
+    virtual status_t announce_nb(const std::vector<C2WorkOutline> &items) = 0;
+
+    /**
+     * Discards and abandons any pending work for the component, and optionally any component
+     * downstream.
+     *
+     * \todo define this: we could flush all work before last item queued for component across all
+     *                    components linked to this; flush only work items that are queued to this
+     *                    component
+     * \todo return work # of last flushed item; or all flushed (but not returned items)
+     * \todo we could make flush take a work item and flush all work before/after that item to allow
+     *       TBD (slicing/seek?)
+     * \todo we could simply take a list of numbers and flush those... this is bad for decoders
+     *       also, what would happen to fine grade references?
+     *
+     * This method MUST be supported in running (including tripped) states.
+     *
+     * This method may be momentarily blocking, but must return within 5ms.
+     *
+     * Work that could be immediately abandoned/discarded SHALL be returned in |flushedWork|; this
+     * can be done in an arbitrary order.
+     *
+     * Work that could not be abandoned or discarded immediately SHALL be marked to be
+     * discarded at the earliest opportunity, and SHALL be returned via the onWorkDone() callback.
+     *
+     * \param flushThrough    flush work from this component and all components connected downstream
+     *                      from it via tunneling.
+     *
+     * \retval C2_OK        the work announcement has been successfully recorded
+     * \retval C2_TIMED_OUT the flush could not be completed within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented flushing from completion (unexpected)
+     */
+    virtual status_t flush_sm(bool flushThrough, std::list<std::unique_ptr<C2Work>>* const flushedWork) = 0;
+
+    /**
+     * Drains the component, and optionally downstream components
+     *
+     * \todo define this; we could place EOS to all upstream components, just this component, or
+     *       all upstream and downstream component.
+     * \todo should EOS carry over to downstream components?
+     *
+     * Marks last work item as "end-of-stream", so component is notified not to wait for further
+     * work before it processes work already queued. This method is called to set the end-of-stream
+     * flag after work has been queued. Client can continue to queue further work immediately after
+     * this method returns.
+     *
+     * This method MUST be supported in running (including tripped) states.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * Work that is completed SHALL be returned via the onWorkDone() callback.
+     *
+     * \param drainThrough    marks the last work item with a persistent "end-of-stream" marker that
+     *                      will drain downstream components.
+     *
+     * \todo this may confuse work-ordering downstream; could be an mode enum
+     *
+     * \retval C2_OK        the work announcement has been successfully recorded
+     * \retval C2_TIMED_OUT the flush could not be completed within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented flushing from completion (unexpected)
+     */
+    virtual status_t drain_nb(bool drainThrough) = 0;
+
+    // STATE CHANGE METHODS
+    // =============================================================================================
+
+    /**
+     * Starts the component.
+     *
+     * This method MUST be supported in stopped state.
+     *
+     * \todo This method MUST return within 500ms. Seems this should be able to return quickly, as
+     * there are no immediate guarantees. Though there are guarantees for responsiveness immediately
+     * after start returns.
+     *
+     * \todo Could we just start a ComponentInterface to get a Component?
+     *
+     * \retval C2_OK        the work announcement has been successfully recorded
+     * \retval C2_NO_MEMORY not enough memory to start the component
+     * \retval C2_TIMED_OUT the component could not be started within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented starting the component (unexpected)
+     */
+    virtual status_t start() = 0;
+
+    /**
+     * Stops the component.
+     *
+     * This method MUST be supported in running (including tripped) state.
+     *
+     * This method MUST return withing 500ms.
+     *
+     * Upon this call, all pending work SHALL be abandoned.
+     *
+     * \todo should this return completed work, since client will just free it? Perhaps just to
+     * verify accounting.
+     *
+     * This does not alter any settings and tunings that may have resulted in a tripped state.
+     * (Is this material given the definition? Perhaps in case we want to start again.)
+     */
+    virtual status_t stop() = 0;
+
+    /**
+     * Resets the component.
+     *
+     * This method MUST be supported in running (including tripped) state.
+     *
+     * This method MUST be supported during any other call (\todo or just blocking ones?)
+     *
+     * This method MUST return withing 500ms.
+     *
+     * After this call returns all work is/must be abandoned, all references should be released.
+     *
+     * \todo should this return completed work, since client will just free it? Also, if it unblocks
+     * a stop, where should completed work be returned?
+     *
+     * This brings settings back to their default - "guaranteeing" no tripped space.
+     *
+     * \todo reclaim support - it seems that since ownership is passed, this will allow reclaiming stuff.
+     */
+    virtual void reset() = 0;
+
+    /**
+     * Releases the component.
+     *
+     * This method MUST be supported in any state. (\todo Or shall we force reset() first to bring
+     * to a known state?)
+     *
+     * This method MUST return withing 500ms.
+     *
+     * \todo should this return completed work, since client will just free it? Also, if it unblocks
+     * a stop, where should completed work be returned?
+     *
+     * TODO: does it matter if this call has a short time limit? Yes, as upon return all references
+     * shall be abandoned.
+     */
+    virtual void release() = 0;
+
+    /**
+     * Returns the interface for this component.
+     *
+     * \return the component interface
+     */
+    virtual std::shared_ptr<C2ComponentInterface> intf() = 0;
+
+protected:
+    virtual ~C2Component() = default;
+};
+
+class C2FrameInfoParser {
+public:
+    /**
+     * \return the content type supported by this info parser.
+     *
+     * \todo this may be redundant
+     */
+    virtual C2StringLiteral getType() const = 0;
+
+    /**
+     * \return a vector of supported parameter indices parsed by this info parser.
+     *
+     * \todo sticky vs. non-sticky params? this may be communicated by param-reflector.
+     */
+    virtual const std::vector<C2Param::Index> getParsedParams() const = 0;
+
+    /**
+     * Resets this info parser. This brings this parser to its initial state after creation.
+     *
+     * This method SHALL return within 5ms.
+     *
+     * \retval C2_OK        the info parser was reset
+     * \retval C2_TIMED_OUT could not reset the parser within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the resetting of the parser (unexpected)
+     */
+    virtual status_t reset() { return C2_OK; }
+
+    virtual status_t parseFrame(C2BufferPack &frame);
+
+    virtual ~C2FrameInfoParser() = default;
+};
+
+struct C2ComponentInfo {
+    // TBD
+
+};
+
+class C2AllocatorStore {
+public:
+    // TBD
+
+    enum Type {
+        LINEAR,     ///< basic linear allocator type
+        GRALLOC,    ///< basic gralloc allocator type
+    };
+
+    /**
+     * Creates an allocator.
+     *
+     * \param type      the type of allocator to create
+     * \param allocator shared pointer where the created allocator is stored. Cleared on failure
+     *                  and updated on success.
+     *
+     * \retval C2_OK        the allocator was created successfully
+     * \retval C2_TIMED_OUT could not create the allocator within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the creation of the allocator (unexpected)
+     *
+     * \retval C2_NOT_FOUND no such allocator
+     * \retval C2_NO_MEMORY not enough memory to create the allocator
+     */
+    virtual status_t createAllocator(Type type, std::shared_ptr<C2Allocator>* const allocator) = 0;
+
+    virtual ~C2AllocatorStore() = default;
+};
+
+class C2ComponentStore {
+    /**
+     * Creates a component.
+     *
+     * This method SHALL return within 100ms.
+     *
+     * \param name          name of the component to create
+     * \param component     shared pointer where the created component is stored. Cleared on
+     *                      failure and updated on success.
+     *
+     * \retval C2_OK        the component was created successfully
+     * \retval C2_TIMED_OUT could not create the component within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the creation of the component (unexpected)
+     *
+     * \retval C2_NOT_FOUND no such component
+     * \retval C2_NO_MEMORY not enough memory to create the component
+     */
+    virtual status_t createComponent(C2String name, std::shared_ptr<C2Component>* const component);
+
+    /**
+     * Creates a component interface.
+     *
+     * This method SHALL return within 100ms.
+     *
+     * \param name          name of the component interface to create
+     * \param interface     shared pointer where the created interface is stored
+     *
+     * \retval C2_OK        the component interface was created successfully
+     * \retval C2_TIMED_OUT could not create the component interface within the time limit
+     *                      (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the creation of the component interface
+     *                      (unexpected)
+     *
+     * \retval C2_NOT_FOUND no such component interface
+     * \retval C2_NO_MEMORY not enough memory to create the component interface
+     *
+     * \todo Do we need an interface, or could this just be a component that is never started?
+     */
+    virtual status_t createInterface(C2String name, std::shared_ptr<C2ComponentInterface>* const interface);
+
+    /**
+     * Returns the list of components supported by this component store.
+     *
+     * This method SHALL return within 1ms.
+     *
+     * \retval vector of component information.
+     */
+    virtual std::vector<std::unique_ptr<const C2ComponentInfo>> getComponents();
+
+    // -------------------------------------- UTILITY METHODS --------------------------------------
+
+    // on-demand buffer layout conversion (swizzling)
+    virtual status_t copyBuffer(std::shared_ptr<C2GraphicBuffer> src, std::shared_ptr<C2GraphicBuffer> dst);
+
+    // status_t selectPreferredColor(formats<A>, formats<B>);
+
+    // GLOBAL SETTINGS
+    // system-wide stride & slice-height (???)
+
+    /**
+     * Queries a set of system-wide parameters.
+     * Querying is performed at best effort: the store SHALL query all supported parameters and
+     * skip unsupported ones, or heap allocated parameters that could not be allocated. Any errors
+     * are communicated in the return value. Additionally, preallocated (e.g. stack) parameters that
+     * could not be queried are invalidated. Parameters to be allocated on the heap are omitted from
+     * the result.
+     *
+     * \note Parameter values do not depend on the order of query.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \param stackParams     a list of params queried. These are initialized specific to each
+     *                      setting; e.g. size and index are set and rest of the members are
+     *                      cleared.
+     *                      NOTE: Flexible settings that are of incorrect size will be invalidated.
+     * \param heapParamIndices a vector of param indices for params to be queried and returned on the
+     *                      heap. These parameters will be returned in heapParams. Unsupported param
+     *                      indices will be ignored.
+     * \param heapParams      a list of params where to which the supported heap parameters will be
+     *                      appended in the order they appear in heapParamIndices.
+     *
+     * \retval C2_OK        all parameters could be queried
+     * \retval C2_BAD_INDEX all supported parameters could be queried, but some parameters were not
+     *                      supported
+     * \retval C2_NO_MEMORY could not allocate memory for a supported parameter
+     * \retval C2_CORRUPTED some unknown error prevented the querying of the parameters
+     *                      (unexpected)
+     */
+    virtual status_t query_nb(
+        const std::vector<C2Param* const> &stackParams,
+        const std::vector<C2Param::Index> &heapParamIndices,
+        std::vector<std::unique_ptr<C2Param>>* const heapParams) = 0;
+
+    /**
+     * Sets a set of system-wide parameters.
+     *
+     * \note There are no settable system-wide parameters defined thus far, but may be added in the
+     * future.
+     *
+     * Tuning is performed at best effort: the store SHALL update all supported configuration at
+     * best effort (unless configured otherwise) and skip unsupported ones. Any errors are
+     * communicated in the return value and in |failures|.
+     *
+     * \note Parameter tuning DOES depend on the order of the tuning parameters. E.g. some parameter
+     * update may allow some subsequent parameter update.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \param params          a list of parameter updates. These will be updated to the actual
+     *                      parameter values after the updates (this is because tuning is performed
+     *                      at best effort).
+     *                      \todo params that could not be updated are not marked here, so are
+     *                      confusing - are they "existing" values or intended to be configured
+     *                      values?
+     * \param failures        a list of parameter failures
+     *
+     * \retval C2_OK        all parameters could be updated successfully
+     * \retval C2_BAD_INDEX all supported parameters could be updated successfully, but some
+     *                      parameters were not supported
+     * \retval C2_BAD_VALUE some supported parameters could not be updated successfully because
+     *                      they contained unsupported values. These are returned in |failures|.
+     * \retval C2_NO_MEMORY some supported parameters could not be updated successfully because
+     *                      they contained unsupported values, but could not allocate a failure
+     *                      object for them.
+     * \retval C2_CORRUPTED some unknown error prevented the update of the parameters
+     *                      (unexpected)
+     */
+    virtual status_t config_nb(
+            const std::vector<C2Param* const> &params,
+            std::list<std::unique_ptr<C2SettingResult>>* const failures) = 0;
+
+    virtual ~C2ComponentStore() = default;
+};
+
+// ================================================================================================
+
+/// @}
+
+}  // namespace android
+
+#endif  // C2COMPONENT_H_
diff --git a/media/libstagefright/codec2/include/C2Config.h b/media/libstagefright/codec2/include/C2Config.h
new file mode 100644
index 0000000..30e9193
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2Config.h
@@ -0,0 +1,251 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2CONFIG_H_
+#define C2CONFIG_H_
+
+#include <C2ParamDef.h>
+
+namespace android {
+
+/// \defgroup config Component configuration
+/// @{
+
+#ifndef DEFINE_C2_ENUM_VALUE_AUTO_HELPER
+#define DEFINE_C2_ENUM_VALUE_AUTO_HELPER(name, type, prefix, ...)
+#define DEFINE_C2_ENUM_VALUE_CUSTOM_HELPER(name, type, names, ...)
+#endif
+
+#define C2ENUM(name, type, ...) \
+enum name : type { __VA_ARGS__ }; \
+DEFINE_C2_ENUM_VALUE_AUTO_HELPER(name, type, NULL, __VA_ARGS__)
+
+#define C2ENUM_CUSTOM_PREFIX(name, type, prefix, ...) \
+enum name : type { __VA_ARGS__ }; \
+DEFINE_C2_ENUM_VALUE_AUTO_HELPER(name, type, prefix, __VA_ARGS__)
+
+#define C2ENUM_CUSTOM_NAMES(name, type, names, ...) \
+enum name : type { __VA_ARGS__ }; \
+DEFINE_C2_ENUM_VALUE_CUSTOM_HELPER(name, type, names, __VA_ARGS__)
+
+enum C2ParamIndexKind : uint32_t {
+    /// domain
+    kParamIndexDomain,
+
+    /// configuration descriptors
+    kParamIndexSupportedParams,
+    kParamIndexRequiredParams,
+    kParamIndexReadOnlyParams,
+    kParamIndexRequestedInfos,
+
+    /// latency
+    kParamIndexLatency,
+
+    // generic time behavior
+    kParamIndexTemporal,
+
+    /// port configuration
+    kParamIndexMime,
+    kParamIndexStreamCount,
+    kParamIndexFormat,
+
+    // video info
+
+    kParamIndexStructStart = 0x1,
+    kParamIndexVideoSize,
+    kParamIndexMaxVideoSizeHint,
+
+    kParamIndexParamStart = 0x800,
+};
+
+C2ENUM(C2DomainKind, int32_t,
+    C2DomainVideo,
+    C2DomainAudio,
+    C2DomainOther = C2DomainAudio + 1
+);
+
+// read-only
+
+typedef C2GlobalParam<C2Info, C2SimpleValueStruct<C2DomainKind>, kParamIndexDomain> C2ComponentDomainInfo;
+// typedef C2GlobalParam<C2Info, C2Uint32Value, kParamIndexDomain> C2ComponentDomainInfo;
+//DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<C2DomainKind>, { C2FIELD(mValue, "value") });
+
+// read-only
+typedef C2GlobalParam<C2Info, C2Uint32Array, kParamIndexSupportedParams> C2SupportedParamsInfo;
+
+/// \todo do we define it as a param?
+// read-only
+typedef C2GlobalParam<C2Info, C2Uint32Array, kParamIndexRequiredParams> C2RequiredParamsInfo;
+
+// read-only
+typedef C2GlobalParam<C2Info, C2Uint32Array, kParamIndexReadOnlyParams> C2ReadOnlyParamsInfo;
+
+// read-only
+typedef C2GlobalParam<C2Info, C2Uint32Array, kParamIndexRequestedInfos> C2RequestedInfosInfo;
+
+// read-only
+//typedef C2GlobalParam<C2Info, C2Uint32Value, kParamIndexRequestedInfos> C2RequestedInfosInfo;
+
+/// latency
+
+typedef C2PortParam<C2Info, C2Uint32Value, kParamIndexLatency> C2PortLatencyInfo;
+
+typedef C2GlobalParam<C2Info, C2Uint32Value, kParamIndexLatency> C2ComponentLatencyInfo;
+
+/// \todo
+typedef C2GlobalParam<C2Info, C2Uint32Value, kParamIndexTemporal> C2ComponentTemporalInfo;
+
+/// port configuration
+
+typedef C2PortParam<C2Tuning, C2StringValue, kParamIndexMime> C2PortMimeConfig;
+
+typedef C2PortParam<C2Tuning, C2Uint32Value, kParamIndexStreamCount> C2PortStreamCountConfig;
+
+typedef C2StreamParam<C2Tuning, C2StringValue, kParamIndexMime> C2StreamMimeConfig;
+
+C2ENUM(C2FormatKind, uint32_t,
+    C2FormatCompressed,
+    C2FormatAudio = 1,
+    C2FormatVideo = 4,
+)
+
+typedef C2StreamParam<C2Tuning, C2Uint32Value, kParamIndexFormat> C2StreamFormatConfig;
+
+/*
+   Component description fields:
+
+// format (video/compressed/audio/other-do we need other?) per stream
+
+// likely some of these are exposed as separate settings:
+
+struct C2BaseTuning {
+    // latency characteristics
+    uint32_t latency;
+    bool temporal;               // seems this only makes sense if latency is 1..., so this could be captured as latency = 0
+    uint32_t delay;
+
+    uint32_t numInputStreams;    // RW? - or suggestion only: RO
+    uint32_t numOutputStreams;   // RW
+                                 //
+    // refs characteristics (per stream?)
+    uint32_t maxInputRefs;       // RO
+    uint32_t maxOutputRefs;      // RO
+    uint32_t maxInputMemory;     // RO - max time refs are held for
+    uint32_t maxOutputMemory;    // RO
+
+    // per stream
+    bool compressed;
+    // format... video/compressed/audio/other?
+    // actual "audio/video" format type
+    uint32_t width/height? is this needed, or just queue...
+    // mime...
+};
+*/
+
+
+
+
+
+
+// overall component
+//   => C: domain: audio or video
+//   => C: kind: decoder, encoder or filter
+//   => "mime" class
+
+//   => C: temporal (bool) => does this depend on ordering?
+//   => I: latency
+//   => I: history max duration...
+//   => I: history max frames kept...
+//   => I: reordering depth
+//   => I: frc (bool) (perhaps ratio?)
+//   => I: current frc
+
+//   - pause
+//   => last frame 'number' processed
+//   => current frame 'number' processed
+//   => invalid settings =>[]
+
+// video decoder configuration:                                 // audio
+//   - encoding                                                 // -encoding
+//   - hint: max width/height                                   // -hint: sample rate, channels
+//   - hint: profile/level                                      // -hint: tools used
+//   - hint: framerate (bitrate?)                               // -hint: bitrate
+//   - default: color space (from container)
+//   - hint: color format                                       // -hint: pcm-encoding
+//   - hint: # of views (e.g. MVC)                              // -hint?: channel groups
+//   - default: HDR static info (from container)                // -hint?: channel mappings
+//   - hint: rotation (e.g. for allocator)
+
+// => # of streams required and their formats? (setting?)
+// => # of streams produced and their formats? (tuning)
+
+// => output
+//   - # of views                                               // -channel groups && channel mappings
+//   - width/height/crop/color format/color space/HDR static info (from buffers)
+//     (as required by the allocator & framework)
+//   - SEI (or equivalent) <= [port]
+//     - CC
+//   - reference info
+
+// video encoder configurations
+//   - encoding                                                 // - encoding
+//   - hint: width/height                                       // - hint: sample rate, channels
+//   - hint: frame rate
+//   - hint: max width/height (? does this differ from width/height?)
+//   - # of input (e.g. MVC)                                    // - hint: # groups and mappings
+//   - # of output (e.g. SVC) => bitrates/width/height/framerates? per stream
+//   - hint: profile/level                                      // - hint: profile/level
+//   - HDR static info + (info: HDR)
+//   - color space
+//   - hint: color format?                                      // - hint: pcm encoding
+//   - SEI
+//     - CC
+//   - reference directive
+//   - hint: bitrate (or quality)                               // - hint: bitrate/quality
+//   - optional: codec-specific parameters                      // - optional: csd
+
+// => output                                                    // => output
+//   - layers per stream?                                       // E-AC3?... DTS?...Dolby-Vision?
+//   - reference info
+
+
+// RM:
+//   - need SPS for full knowledge => component should return max. (component can use less)
+//   - critical parameters? (interlaced? profile? level?)
+
+struct C2VideoSizeStruct {
+    int32_t mWidth;     ///< video width
+    int32_t mHeight;    ///< video height
+
+    DEFINE_AND_DESCRIBE_C2STRUCT(VideoSize)
+    C2FIELD(mWidth, "width")
+    C2FIELD(mHeight, "height")
+};
+
+// video size for video decoder [OUT]
+typedef C2StreamParam<C2Info, C2VideoSizeStruct> C2VideoSizeStreamInfo;
+
+// max video size for video decoder [IN]
+typedef C2PortParam<C2Setting, C2VideoSizeStruct, kParamIndexMaxVideoSizeHint> C2MaxVideoSizeHintPortSetting;
+
+// video encoder size [IN]
+typedef C2StreamParam<C2Tuning, C2VideoSizeStruct> C2VideoSizeStreamTuning;
+
+/// @}
+
+} // namespace android
+
+#endif
diff --git a/media/libstagefright/codec2/include/C2Param.h b/media/libstagefright/codec2/include/C2Param.h
new file mode 100644
index 0000000..fd43061
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2Param.h
@@ -0,0 +1,1171 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2PARAM_H_
+#define C2PARAM_H_
+
+#include <C2.h>
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include <algorithm>
+#include <list>
+#include <string>
+#include <type_traits>
+
+#define C2_PACK __attribute__((packed))
+
+namespace android {
+
+/// \addtogroup Parameters
+/// @{
+
+/// \defgroup internal Internal helpers.
+
+/*!
+ * \file
+ * PARAMETERS: SETTINGs, TUNINGs, and INFOs
+ * ===
+ *
+ * These represent miscellaneous control and metadata information and are likely copied into
+ * kernel space. Therefore, these are C-like structures designed to carry just a small amount of
+ * information. We are using C++ to be able to add constructors, as well as non-virtual and class
+ * methods.
+ *
+ * ==Specification details:
+ *
+ * Restrictions:
+ *   - must be POD struct, e.g. no vtable (no virtual destructor)
+ *   - must have the same size in 64-bit and 32-bit mode (no size_t)
+ *   - as such, no pointer members
+ *
+ * Behavior:
+ * - Params can be global (not related to input or output), related to input or output,
+ *   or related to an input/output stream.
+ * - All params are queried/set using a unique param index, which incorporates a potential stream
+ *   index and/or port.
+ * - Querying (supported) params MUST never fail.
+ * - All params MUST have default values.
+ * - If some fields have "unsupported" or "invalid" values during setting, this SHOULD be
+ *   communicated to the app.
+ *   a) Ideally, this should be avoided.  When setting parameters, in general, component should do
+ *     "best effort" to apply all settings. It should change "invalid/unsupported" values to the
+ *     nearest supported values.
+ *   - This is communicated to the client by changing the source values in tune()/
+ *     configure().
+ *   b) If falling back to a supported value is absolutely impossible, the component SHALL return
+ *     an error for the specific setting, but should continue to apply other settings.
+ *     TODO: this currently may result in unintended results.
+ *
+ * **NOTE:** unlike OMX, params are not versioned. Instead, a new struct with new base index
+ * SHALL be added as new versions are required.
+ *
+ * The proper subtype (Setting, Info or Param) is incorporated into the class type. Define structs
+ * to define multiple subtyped versions of related parameters.
+ *
+ * ==Implementation details:
+ *
+ * - Use macros to define parameters
+ * - All parameters must have a default constructor
+ *   - This is only used for instantiating the class in source (e.g. will not be used
+ *     when building a parameter by the framework from key/value pairs.)
+ */
+
+/// \ingroup internal
+struct _C2ParamManipulator;
+
+/**
+ * Parameter base class.
+ */
+struct C2Param {
+    // param index encompasses the following:
+    //
+    // - type (setting, tuning, info, struct)
+    // - vendor extension flag
+    // - flexible parameter flag
+    // - direction (global, input, output)
+    // - stream flag
+    // - stream ID (usually 0)
+    //
+    // layout:
+    //
+    //      +------+-----+---+------+--------+----|------+--------------+
+    //      | kind | dir | - |stream|streamID|flex|vendor|  base index  |
+    //      +------+-----+---+------+--------+----+------+--------------+
+    //  bit: 31..30 29.28       25   24 .. 17  16    15   14    ..     0
+    //
+public:
+    /**
+     * C2Param kinds, usable as bitmaps.
+     */
+    enum Kind : uint32_t {
+        NONE    = 0,
+        STRUCT  = (1 << 0),
+        INFO    = (1 << 1),
+        SETTING = (1 << 2),
+        TUNING  = (1 << 3) | SETTING, // tunings are settings
+    };
+
+    /**
+     * base index (including the vendor extension bit) is a global index for
+     * C2 parameter structs. (e.g. the same indices cannot be reused for different
+     * structs for different components).
+     */
+    struct BaseIndex {
+    protected:
+        enum : uint32_t {
+            kTypeMask      = 0xC0000000,
+            kTypeStruct    = 0x00000000,
+            kTypeTuning    = 0x40000000,
+            kTypeSetting   = 0x80000000,
+            kTypeInfo      = 0xC0000000,
+
+            kDirMask       = 0x30000000,
+            kDirGlobal     = 0x20000000,
+            kDirUndefined  = 0x30000000, // MUST have all bits set
+            kDirInput      = 0x00000000,
+            kDirOutput     = 0x10000000,
+
+            kStreamFlag    = 0x02000000,
+            kStreamIdMask  = 0x01FE0000,
+            kStreamIdShift = 17,
+            kStreamIdMax   = kStreamIdMask >> kStreamIdShift,
+            kStreamMask    = kStreamFlag | kStreamIdMask,
+
+            kFlexibleFlag  = 0x00010000,
+            kVendorFlag    = 0x00008000,
+            kParamMask     = 0x0000FFFF,
+            kBaseMask      = kParamMask | kFlexibleFlag,
+        };
+
+    public:
+        enum : uint32_t {
+            kVendorStart = kVendorFlag, ///< vendor structs SHALL start after this
+            _kFlexibleFlag = kFlexibleFlag, // TODO: this is only needed for testing
+        };
+
+        /// constructor/conversion from uint32_t
+        inline BaseIndex(uint32_t index) : mIndex(index) { }
+
+        // no conversion from uint64_t
+        inline BaseIndex(uint64_t index) = delete;
+
+        /// returns true iff this is a vendor extension parameter
+        inline bool isVendor() const { return mIndex & kVendorFlag; }
+
+        /// returns true iff this is a flexible parameter (with variable size)
+        inline bool isFlexible() const { return mIndex & kFlexibleFlag; }
+
+        /// returns the base type: the index for the underlying struct
+        inline unsigned int baseIndex() const { return mIndex & kBaseMask; }
+
+        /// returns the param index for the underlying struct
+        inline unsigned int paramIndex() const { return mIndex & kParamMask; }
+
+        DEFINE_FIELD_BASED_COMPARISON_OPERATORS(BaseIndex, mIndex)
+
+    protected:
+        uint32_t mIndex;
+    };
+
+    /**
+     * type encompasses the parameter kind (tuning, setting, info), whether the
+     * parameter is global, input or output, and whether it is for a stream.
+     */
+    struct Type : public BaseIndex {
+        /// returns true iff this is a global parameter (not for input nor output)
+        inline bool isGlobal() const { return (mIndex & kDirMask) == kDirGlobal; }
+        /// returns true iff this is an input or input stream parameter
+        inline bool forInput() const { return (mIndex & kDirMask) == kDirInput; }
+        /// returns true iff this is an output or output stream parameter
+        inline bool forOutput() const { return (mIndex & kDirMask) == kDirOutput; }
+
+        /// returns true iff this is a stream parameter
+        inline bool forStream() const { return mIndex & kStreamFlag; }
+        /// returns true iff this is a port (input or output) parameter
+        inline bool forPort() const   { return !forStream() && !isGlobal(); }
+
+        /// returns the parameter type: the parameter index without the stream ID
+        inline uint32_t type() const { return mIndex & (~kStreamIdMask); }
+
+        /// return the kind of this param
+        inline Kind kind() const {
+            switch (mIndex & kTypeMask) {
+                case kTypeStruct: return STRUCT;
+                case kTypeInfo: return INFO;
+                case kTypeSetting: return SETTING;
+                case kTypeTuning: return TUNING;
+                default: return NONE; // should not happen
+            }
+        }
+
+        /// constructor/conversion from uint32_t
+        inline Type(uint32_t index) : BaseIndex(index) { }
+
+        // no conversion from uint64_t
+        inline Type(uint64_t index) = delete;
+
+    private:
+        friend struct C2Param;   // for setPort()
+        friend struct C2Tuning;  // for kTypeTuning
+        friend struct C2Setting; // for kTypeSetting
+        friend struct C2Info;    // for kTypeInfo
+        // for kDirGlobal
+        template<typename T, typename S, int I, class F> friend struct C2GlobalParam;
+        template<typename T, typename S, int I, class F> friend struct C2PortParam;   // for kDir*
+        template<typename T, typename S, int I, class F> friend struct C2StreamParam; // for kDir*
+        friend struct _C2ParamInspector; // for testing
+
+        /**
+         * Sets the port/stream direction.
+         * @return true on success, false if could not set direction (e.g. it is global param).
+         */
+        inline bool setPort(bool output) {
+            if (isGlobal()) {
+                return false;
+            } else {
+                mIndex = (mIndex & ~kDirMask) | (output ? kDirOutput : kDirInput);
+                return true;
+            }
+        }
+    };
+
+    /**
+     * index encompasses all remaining information: basically the stream ID.
+     */
+    struct Index : public Type {
+        /// returns the index as uint32_t
+        inline operator uint32_t() const { return mIndex; }
+
+        /// constructor/conversion from uint32_t
+        inline Index(uint32_t index) : Type(index) { }
+
+        // no conversion from uint64_t
+        inline Index(uint64_t index) = delete;
+
+        /// returns the stream ID or ~0 if not a stream
+        inline unsigned stream() const {
+            return forStream() ? rawStream() : ~0U;
+        }
+
+    private:
+        friend struct C2Param;           // for setStream, makeStreamId, isValid
+        friend struct _C2ParamInspector; // for testing
+
+        /**
+         * @return true if the type is valid, e.g. direction is not undefined AND
+         * stream is 0 if not a stream param.
+         */
+        inline bool isValid() const {
+            // there is no Type::isValid (even though some of this check could be
+            // performed on types) as this is only used on index...
+            return (forStream() ? rawStream() < kStreamIdMax : rawStream() == 0)
+                    && (mIndex & kDirMask) != kDirUndefined;
+        }
+
+        /// returns the raw stream ID field
+        inline unsigned rawStream() const {
+            return (mIndex & kStreamIdMask) >> kStreamIdShift;
+        }
+
+        /// returns the streamId bitfield for a given |stream|. If stream is invalid,
+        /// returns an invalid bitfield.
+        inline static uint32_t makeStreamId(unsigned stream) {
+            // saturate stream ID (max value is invalid)
+            if (stream > kStreamIdMax) {
+                stream = kStreamIdMax;
+            }
+            return (stream << kStreamIdShift) & kStreamIdMask;
+        }
+
+        /**
+         * Sets the stream index.
+         * \return true on success, false if could not set index (e.g. not a stream param).
+         */
+        inline bool setStream(unsigned stream) {
+            if (forStream()) {
+                mIndex = (mIndex & ~kStreamIdMask) | makeStreamId(stream);
+                return this->stream() < kStreamIdMax;
+            }
+            return false;
+        }
+    };
+
+public:
+    // public getters for Index methods
+
+    /// returns true iff this is a vendor extension parameter
+    inline bool isVendor() const { return _mIndex.isVendor(); }
+    /// returns true iff this is a flexible parameter
+    inline bool isFlexible() const { return _mIndex.isFlexible(); }
+    /// returns true iff this is a global parameter (not for input nor output)
+    inline bool isGlobal() const { return _mIndex.isGlobal(); }
+    /// returns true iff this is an input or input stream parameter
+    inline bool forInput() const { return _mIndex.forInput(); }
+    /// returns true iff this is an output or output stream parameter
+    inline bool forOutput() const { return _mIndex.forOutput(); }
+
+    /// returns true iff this is a stream parameter
+    inline bool forStream() const { return _mIndex.forStream(); }
+    /// returns true iff this is a port (input or output) parameter
+    inline bool forPort() const   { return _mIndex.forPort(); }
+
+    /// returns the stream ID or ~0 if not a stream
+    inline unsigned stream() const { return _mIndex.stream(); }
+
+    /// returns the parameter type: the parameter index without the stream ID
+    inline uint32_t type() const { return _mIndex.type(); }
+
+    /// returns the kind of this parameter
+    inline Kind kind() const { return _mIndex.kind(); }
+
+    /// returns the size of the parameter or 0 if the parameter is invalid
+    inline size_t size() const { return _mSize; }
+
+    /// returns true iff the parameter is valid
+    inline operator bool() const { return _mIndex.isValid() && _mSize > 0; }
+
+    /// returns true iff the parameter is invalid
+    inline bool operator!() const { return !operator bool(); }
+
+    // equality is done by memcmp (use equals() to prevent any overread)
+    inline bool operator==(const C2Param &o) const {
+        return equals(o) && memcmp(this, &o, _mSize) == 0;
+    }
+    inline bool operator!=(const C2Param &o) const { return !operator==(o); }
+
+    /// safe(r) type cast from pointer and size
+    inline static C2Param* From(void *addr, size_t len) {
+        // _mSize must fit into size
+        if (len < sizeof(_mSize) + offsetof(C2Param, _mSize)) {
+            return nullptr;
+        }
+        // _mSize must match length
+        C2Param *param = (C2Param*)addr;
+        if (param->_mSize != len) {
+            return nullptr;
+        }
+        return param;
+    }
+
+#if 0
+    template<typename P, class=decltype(C2Param(P()))>
+    P *As() { return P::From(this); }
+    template<typename P>
+    const P *As() const { return const_cast<const P*>(P::From(const_cast<C2Param*>(this))); }
+#endif
+
+protected:
+    /// sets the stream field. Returns true iff successful.
+    inline bool setStream(unsigned stream) {
+        return _mIndex.setStream(stream);
+    }
+
+    /// sets the port (direction). Returns true iff successful.
+    inline bool setPort(bool output) {
+        return _mIndex.setPort(output);
+    }
+
+public:
+    /// invalidate this parameter. There is no recovery from this call; e.g. parameter
+    /// cannot be 'corrected' to be valid.
+    inline void invalidate() { _mSize = 0; }
+
+    // if other is the same kind of (valid) param as this, copy it into this and return true.
+    // otherwise, do not copy anything, and return false.
+    inline bool updateFrom(const C2Param &other) {
+        if (other._mSize == _mSize && other._mIndex == _mIndex && _mSize > 0) {
+            memcpy(this, &other, _mSize);
+            return true;
+        }
+        return false;
+    }
+
+protected:
+    // returns |o| if it is a null ptr, or if can suitably be a param of given |type| (e.g. has
+    // same type (ignoring stream ID), and size). Otherwise, returns null. If |checkDir| is false,
+    // allow undefined or different direction (e.g. as constructed from C2PortParam() vs.
+    // C2PortParam::input), but still require equivalent type (stream, port or global); otherwise,
+    // return null.
+    inline static const C2Param* ifSuitable(
+            const C2Param* o, size_t size, Type type, size_t flexSize = 0, bool checkDir = true) {
+        if (o == nullptr || o->_mSize < size || (flexSize && ((o->_mSize - size) % flexSize))) {
+            return nullptr;
+        } else if (checkDir) {
+            return o->_mIndex.type() == type.mIndex ? o : nullptr;
+        } else if (o->_mIndex.isGlobal()) {
+            return nullptr;
+        } else {
+            return ((o->_mIndex.type() ^ type.mIndex) & ~Type::kDirMask) ? nullptr : o;
+        }
+    }
+
+    /// base constructor
+    inline C2Param(uint32_t paramSize, Index paramIndex)
+        : _mSize(paramSize),
+          _mIndex(paramIndex) {
+        if (paramSize > sizeof(C2Param)) {
+            memset(this + 1, 0, paramSize - sizeof(C2Param));
+        }
+    }
+
+    /// base constructor with stream set
+    inline C2Param(uint32_t paramSize, Index paramIndex, unsigned stream)
+        : _mSize(paramSize),
+          _mIndex(paramIndex | Index::makeStreamId(stream)) {
+        if (paramSize > sizeof(C2Param)) {
+            memset(this + 1, 0, paramSize - sizeof(C2Param));
+        }
+        if (!forStream()) {
+            invalidate();
+        }
+    }
+
+private:
+    friend struct _C2ParamInspector; // for testing
+
+    /// returns the base type: the index for the underlying struct (for testing
+    /// as this can be gotten by the baseIndex enum)
+    inline uint32_t _baseIndex() const { return _mIndex.baseIndex(); }
+
+    /// returns true iff |o| has the same size and index as this. This performs the
+    /// basic check for equality.
+    inline bool equals(const C2Param &o) const {
+        return _mSize == o._mSize && _mIndex == o._mIndex;
+    }
+
+    uint32_t _mSize;
+    Index _mIndex;
+};
+
+/// \ingroup internal
+/// allow C2Params access to private methods, e.g. constructors
+#define C2PARAM_MAKE_FRIENDS \
+    template<typename U, typename S, int I, class F> friend struct C2GlobalParam; \
+    template<typename U, typename S, int I, class F> friend struct C2PortParam; \
+    template<typename U, typename S, int I, class F> friend struct C2StreamParam; \
+
+/**
+ * Setting base structure for component method signatures. Wrap constructors.
+ */
+struct C2Setting : public C2Param {
+protected:
+    template<typename ...Args>
+    inline C2Setting(const Args(&... args)) : C2Param(args...) { }
+public: // TODO
+    enum : uint32_t { indexFlags = Type::kTypeSetting };
+};
+
+/**
+ * Tuning base structure for component method signatures. Wrap constructors.
+ */
+struct C2Tuning : public C2Setting {
+protected:
+    template<typename ...Args>
+    inline C2Tuning(const Args(&... args)) : C2Setting(args...) { }
+public: // TODO
+    enum : uint32_t { indexFlags = Type::kTypeTuning };
+};
+
+/**
+ * Info base structure for component method signatures. Wrap constructors.
+ */
+struct C2Info : public C2Param {
+protected:
+    template<typename ...Args>
+    inline C2Info(const Args(&... args)) : C2Param(args...) { }
+public: // TODO
+    enum : uint32_t { indexFlags = Type::kTypeInfo };
+};
+
+/**
+ * Structure uniquely specifying a field in an arbitrary structure.
+ *
+ * \note This structure is used differently in C2FieldDescriptor to
+ * identify array fields, such that _mSize is the size of each element. This is
+ * because the field descriptor contains the array-length, and we want to keep
+ * a relevant element size for variable length arrays.
+ */
+struct _C2FieldId {
+//public:
+    /**
+     * Constructor used for C2FieldDescriptor that removes the array extent.
+     *
+     * \param[in] offset pointer to the field in an object at address 0.
+     */
+    template<typename T, class B=typename std::remove_extent<T>::type>
+    inline _C2FieldId(T* offset)
+        : // offset is from "0" so will fit on 32-bits
+          _mOffset((uint32_t)(uintptr_t)(offset)),
+          _mSize(sizeof(B)) { }
+
+    /**
+     * Direct constructor from offset and size.
+     *
+     * \param[in] offset offset of the field.
+     * \param[in] size size of the field.
+     */
+    inline _C2FieldId(size_t offset, size_t size)
+        : _mOffset(offset), _mSize(size) {}
+
+    /**
+     * Constructor used to identify a field in an object.
+     *
+     * \param U[type] pointer to the object that contains this field. This is needed in case the
+     *        field is in an (inherited) base class, in which case T will be that base class.
+     * \param pm[im] member pointer to the field
+     */
+    template<typename R, typename T, typename U, typename B=typename std::remove_extent<R>::type>
+    inline _C2FieldId(U *, R T::* pm)
+        : _mOffset((uint32_t)(uintptr_t)(&(((U*)256)->*pm)) - 256u),
+          _mSize(sizeof(B)) { }
+
+    /**
+     * Constructor used to identify a field in an object.
+     *
+     * \param U[type] pointer to the object that contains this field
+     * \param pm[im] member pointer to the field
+     */
+    template<typename R, typename T, typename B=typename std::remove_extent<R>::type>
+    inline _C2FieldId(R T::* pm)
+        : _mOffset((uint32_t)(uintptr_t)(&(((T*)0)->*pm))),
+          _mSize(sizeof(B)) { }
+
+    inline bool operator==(const _C2FieldId &other) const {
+        return _mOffset == other._mOffset && _mSize == other._mSize;
+    }
+
+    inline bool operator<(const _C2FieldId &other) const {
+        return _mOffset < other._mOffset ||
+            // NOTE: order parent structure before sub field
+            (_mOffset == other._mOffset && _mSize > other._mSize);
+    }
+
+    DEFINE_OTHER_COMPARISON_OPERATORS(_C2FieldId)
+
+#if 0
+    inline uint32_t offset() const { return _mOffset; }
+    inline uint32_t size() const { return _mSize; }
+#endif
+
+#if defined(FRIEND_TEST)
+    friend void PrintTo(const _C2FieldId &d, ::std::ostream*);
+#endif
+
+private:
+    uint32_t _mOffset; // offset of field
+    uint32_t _mSize;   // size of field
+};
+
+/**
+ * Structure uniquely specifying a field in a configuration
+ */
+struct C2ParamField {
+//public:
+    // TODO: fix what this is for T[] (for now size becomes T[1])
+    template<typename S, typename T>
+    inline C2ParamField(S* param, T* offset)
+        : _mIndex(param->index()),
+          _mFieldId(offset) {}
+
+    template<typename R, typename T, typename U>
+    inline C2ParamField(U *p, R T::* pm) : _mIndex(p->type()), _mFieldId(p, pm) { }
+
+    inline bool operator==(const C2ParamField &other) const {
+        return _mIndex == other._mIndex && _mFieldId == other._mFieldId;
+    }
+
+    inline bool operator<(const C2ParamField &other) const {
+        return _mIndex < other._mIndex ||
+            (_mIndex == other._mIndex && _mFieldId < other._mFieldId);
+    }
+
+    DEFINE_OTHER_COMPARISON_OPERATORS(C2ParamField)
+
+private:
+    C2Param::Index _mIndex;
+    _C2FieldId _mFieldId;
+};
+
+/**
+ * A shared (union) representation of numeric values
+ */
+class C2Value {
+public:
+    /// A union of supported primitive types.
+    union Primitive {
+        int32_t  i32;   ///< int32_t value
+        uint32_t u32;   ///< uint32_t value
+        int64_t  i64;   ///< int64_t value
+        uint64_t u64;   ///< uint64_t value
+        float    fp;    ///< float value
+
+        // constructors - implicit
+        Primitive(int32_t value)  : i32(value) { }
+        Primitive(uint32_t value) : u32(value) { }
+        Primitive(int64_t value)  : i64(value) { }
+        Primitive(uint64_t value) : u64(value) { }
+        Primitive(float value)    : fp(value)  { }
+
+        Primitive() : u64(0) { }
+
+    private:
+        friend class C2Value;
+        template<typename T> const T &ref() const;
+    };
+
+    enum Type {
+        NO_INIT,
+        INT32,
+        UINT32,
+        INT64,
+        UINT64,
+        FLOAT,
+    };
+
+    template<typename T> static constexpr Type typeFor();
+
+    // constructors - implicit
+    template<typename T>
+    C2Value(T value)  : mType(typeFor<T>()),  mValue(value) { }
+
+    C2Value() : mType(NO_INIT) { }
+
+    inline Type type() const { return mType; }
+
+    template<typename T>
+    inline bool get(T *value) const {
+        if (mType == typeFor<T>()) {
+            *value = mValue.ref<T>();
+            return true;
+        }
+        return false;
+    }
+
+private:
+    Type mType;
+    Primitive mValue;
+};
+
+template<> const int32_t &C2Value::Primitive::ref<int32_t>() const { return i32; }
+template<> const int64_t &C2Value::Primitive::ref<int64_t>() const { return i64; }
+template<> const uint32_t &C2Value::Primitive::ref<uint32_t>() const { return u32; }
+template<> const uint64_t &C2Value::Primitive::ref<uint64_t>() const { return u64; }
+template<> const float &C2Value::Primitive::ref<float>() const { return fp; }
+
+template<> constexpr C2Value::Type C2Value::typeFor<int32_t>() { return INT32; }
+template<> constexpr C2Value::Type C2Value::typeFor<int64_t>() { return INT64; }
+template<> constexpr C2Value::Type C2Value::typeFor<uint32_t>() { return UINT32; }
+template<> constexpr C2Value::Type C2Value::typeFor<uint64_t>() { return UINT64; }
+template<> constexpr C2Value::Type C2Value::typeFor<float>() { return FLOAT; }
+
+/**
+ * field descriptor. A field is uniquely defined by an index into a parameter.
+ * (Note: Stream-id is not captured as a field.)
+ *
+ * Ordering of fields is by offset. In case of structures, it is depth first,
+ * with a structure taking an index just before and in addition to its members.
+ */
+struct C2FieldDescriptor {
+//public:
+    /** field types and flags
+     * \note: only 32-bit and 64-bit fields are supported (e.g. no boolean, as that
+     * is represented using INT32).
+     */
+    enum Type : uint32_t {
+        // primitive types
+        INT32   = C2Value::INT32,  ///< 32-bit signed integer
+        UINT32  = C2Value::UINT32, ///< 32-bit unsigned integer
+        INT64   = C2Value::INT64,  ///< 64-bit signed integer
+        UINT64  = C2Value::UINT64, ///< 64-bit signed integer
+        FLOAT   = C2Value::FLOAT,  ///< 32-bit floating point
+
+        // array types
+        STRING = 0x100, ///< fixed-size string (POD)
+        BLOB,           ///< blob. Blobs have no sub-elements and can be thought of as byte arrays;
+                        ///< however, bytes cannot be individually addressed by clients.
+
+        // complex types
+        STRUCT_FLAG = 0x10000, ///< structs. Marked with this flag in addition to their baseIndex.
+    };
+
+    typedef std::pair<C2String, C2Value::Primitive> named_value_type;
+    typedef std::vector<const named_value_type> named_values_type;
+    //typedef std::pair<std::vector<C2String>, std::vector<C2Value::Primitive>> named_values_type;
+
+    /**
+     * Template specialization that returns the named values for a type.
+     *
+     * \todo hide from client.
+     *
+     * \return a vector of name-value pairs.
+     */
+    template<typename B>
+    static named_values_type namedValuesFor(const B &);
+
+    inline C2FieldDescriptor(uint32_t type, uint32_t length, C2StringLiteral name, size_t offset, size_t size)
+        : _mType((Type)type), _mLength(length), _mName(name), _mFieldId(offset, size) { }
+
+    template<typename T, class B=typename std::remove_extent<T>::type>
+    inline C2FieldDescriptor(const T* offset, const char *name)
+        : _mType(this->getType((B*)nullptr)),
+          _mLength(std::is_array<T>::value ? std::extent<T>::value : 1),
+          _mName(name),
+          _mNamedValues(namedValuesFor(*(B*)0)),
+          _mFieldId(offset) {}
+
+/*
+    template<typename T, typename B=typename std::remove_extent<T>::type>
+    inline C2FieldDescriptor<T, B, false>(T* offset, const char *name)
+        : _mType(this->getType((B*)nullptr)),
+          _mLength(std::is_array<T>::value ? std::extent<T>::value : 1),
+          _mName(name),
+          _mFieldId(offset) {}
+*/
+
+    /// \deprecated
+    template<typename T, typename S, class B=typename std::remove_extent<T>::type>
+    constexpr inline C2FieldDescriptor(S*, T S::* field, const char *name)
+        : _mType(this->getType((B*)nullptr)),
+          _mLength(std::is_array<T>::value ? std::extent<T>::value : 1),
+          _mName(name),
+          _mFieldId(&(((S*)0)->*field)) {}
+
+    /// returns the type of this field
+    inline Type type() const { return _mType; }
+    /// returns the length of the field in case it is an array. Returns 0 for
+    /// T[] arrays, returns 1 for T[1] arrays as well as if the field is not an array.
+    inline size_t length() const { return _mLength; }
+    /// returns the name of the field
+    inline C2StringLiteral name() const { return _mName; }
+
+    const named_values_type &namedValues() const { return _mNamedValues; }
+
+#if defined(FRIEND_TEST)
+    friend void PrintTo(const C2FieldDescriptor &, ::std::ostream*);
+    friend bool operator==(const C2FieldDescriptor &, const C2FieldDescriptor &);
+    FRIEND_TEST(C2ParamTest_ParamFieldList, VerifyStruct);
+#endif
+
+private:
+    const Type _mType;
+    const uint32_t _mLength; // the last member can be arbitrary length if it is T[] array,
+                       // extending to the end of the parameter (this is marked with
+                       // 0). T[0]-s are not fields.
+    const C2StringLiteral _mName;
+    const named_values_type _mNamedValues;
+
+    const _C2FieldId _mFieldId;   // field identifier (offset and size)
+
+    // NOTE: We do not capture default value(s) here as that may depend on the component.
+    // NOTE: We also do not capture bestEffort, as 1) this should be true for most fields,
+    // 2) this is at parameter granularity.
+
+    // type resolution
+    inline static Type getType(int32_t*)  { return INT32; }
+    inline static Type getType(uint32_t*) { return UINT32; }
+    inline static Type getType(int64_t*)  { return INT64; }
+    inline static Type getType(uint64_t*) { return UINT64; }
+    inline static Type getType(float*)    { return FLOAT; }
+    inline static Type getType(char*)     { return STRING; }
+    inline static Type getType(uint8_t*)  { return BLOB; }
+
+    template<typename T,
+             class=typename std::enable_if<std::is_enum<T>::value>::type>
+    inline static Type getType(T*) {
+        typename std::underlying_type<T>::type underlying(0);
+        return getType(&underlying);
+    }
+
+    // verify C2Struct by having a fieldList and a baseIndex.
+    template<typename T,
+             class=decltype(T::baseIndex + 1), class=decltype(T::fieldList)>
+    inline static Type getType(T*) {
+        static_assert(!std::is_base_of<C2Param, T>::value, "cannot use C2Params as fields");
+        return (Type)(T::baseIndex | STRUCT_FLAG);
+    }
+};
+
+#define DEFINE_NO_NAMED_VALUES_FOR(type) \
+template<> inline C2FieldDescriptor::named_values_type C2FieldDescriptor::namedValuesFor(const type &) { \
+    return named_values_type(); \
+}
+
+// We cannot subtype constructor for enumerated types so insted define no named values for
+// non-enumerated integral types.
+DEFINE_NO_NAMED_VALUES_FOR(int32_t)
+DEFINE_NO_NAMED_VALUES_FOR(uint32_t)
+DEFINE_NO_NAMED_VALUES_FOR(int64_t)
+DEFINE_NO_NAMED_VALUES_FOR(uint64_t)
+DEFINE_NO_NAMED_VALUES_FOR(uint8_t)
+DEFINE_NO_NAMED_VALUES_FOR(char)
+DEFINE_NO_NAMED_VALUES_FOR(float)
+
+/**
+ * Describes the fields of a structure.
+ */
+struct C2StructDescriptor {
+public:
+    /// Returns the parameter type
+    inline C2Param::BaseIndex baseIndex() const { return _mType.baseIndex(); }
+
+    // Returns the number of fields in this param (not counting any recursive fields).
+    // Must be at least 1 for valid params.
+    inline size_t numFields() const { return _mFields.size(); }
+
+    // Returns the list of immediate fields (not counting any recursive fields).
+    typedef std::vector<const C2FieldDescriptor>::const_iterator field_iterator;
+    inline field_iterator cbegin() const { return _mFields.cbegin(); }
+    inline field_iterator cend() const { return _mFields.cend(); }
+
+    // only supplying const iterator - but these are needed for range based loops
+    inline field_iterator begin() const { return _mFields.cbegin(); }
+    inline field_iterator end() const { return _mFields.cend(); }
+
+    template<typename T>
+    inline C2StructDescriptor(T*)
+        : C2StructDescriptor(T::baseIndex, T::fieldList) { }
+
+    inline C2StructDescriptor(
+            C2Param::BaseIndex type,
+            std::initializer_list<const C2FieldDescriptor> fields)
+        : _mType(type), _mFields(fields) { }
+
+private:
+    const C2Param::BaseIndex _mType;
+    const std::vector<const C2FieldDescriptor> _mFields;
+};
+
+/**
+ * Describes parameters for a component.
+ */
+struct C2ParamDescriptor {
+public:
+    /**
+     * Returns whether setting this param is required to configure this component.
+     * This can only be true for builtin params for platform-defined components (e.g. video and
+     * audio encoders/decoders, video/audio filters).
+     * For vendor-defined components, it can be true even for vendor-defined params,
+     * but it is not recommended, in case the component becomes platform-defined.
+     */
+    inline bool isRequired() const { return _mIsRequired; }
+
+    /**
+     * Returns whether this parameter is persistent. This is always true for C2Tuning and C2Setting,
+     * but may be false for C2Info. If true, this parameter persists across frames and applies to
+     * the current and subsequent frames. If false, this C2Info parameter only applies to the
+     * current frame and is not assumed to have the same value (or even be present) on subsequent
+     * frames, unless it is specified for those frames.
+     */
+    inline bool isPersistent() const { return _mIsPersistent; }
+
+    /// Returns the name of this param.
+    /// This defaults to the underlying C2Struct's name, but could be altered for a component.
+    inline C2String name() const { return _mName; }
+
+    /// Returns the parameter type
+    /// \todo fix this
+    inline C2Param::Type type() const { return _mType; }
+
+    template<typename T>
+    inline C2ParamDescriptor(bool isRequired, C2StringLiteral name, const T*)
+        : _mIsRequired(isRequired),
+          _mIsPersistent(true),
+          _mName(name),
+          _mType(T::typeIndex) { }
+
+    inline C2ParamDescriptor(
+            bool isRequired, C2StringLiteral name, C2Param::Type type)
+        : _mIsRequired(isRequired),
+          _mIsPersistent(true),
+          _mName(name),
+          _mType(type) { }
+
+private:
+    const bool _mIsRequired;
+    const bool _mIsPersistent;
+    const C2String _mName;
+    const C2Param::Type _mType;
+};
+
+/// \ingroup internal
+/// Define a structure without baseIndex.
+#define DEFINE_C2STRUCT_NO_BASE(name) \
+public: \
+    typedef C2##name##Struct _type; /**< type name shorthand */ \
+    const static std::initializer_list<const C2FieldDescriptor> fieldList; /**< structure fields */
+
+/// Define a structure with matching baseIndex.
+#define DEFINE_C2STRUCT(name) \
+public: \
+    enum : uint32_t { baseIndex = kParamIndex##name }; \
+    DEFINE_C2STRUCT_NO_BASE(name)
+
+/// Define a flexible structure with matching baseIndex.
+#define DEFINE_FLEX_C2STRUCT(name, flexMember) \
+public: \
+    FLEX(C2##name##Struct, flexMember) \
+    enum : uint32_t { baseIndex = kParamIndex##name | C2Param::BaseIndex::_kFlexibleFlag }; \
+    DEFINE_C2STRUCT_NO_BASE(name)
+
+/// \ingroup internal
+/// Describe a structure of a templated structure.
+#define DESCRIBE_TEMPLATED_C2STRUCT(strukt, list) \
+    template<> \
+    const std::initializer_list<const C2FieldDescriptor> strukt::fieldList = list;
+
+/// \deprecated
+/// Describe the fields of a structure using an initializer list.
+#define DESCRIBE_C2STRUCT(name, list) \
+    const std::initializer_list<const C2FieldDescriptor> C2##name##Struct::fieldList = list;
+
+/**
+ * Describe a field of a structure.
+ * These must be in order.
+ *
+ * There are two ways to use this macro:
+ *
+ *  ~~~~~~~~~~~~~ (.cpp)
+ *  struct C2VideoWidthStruct {
+ *      int32_t mWidth;
+ *      C2VideoWidthStruct() {} // optional default constructor
+ *      C2VideoWidthStruct(int32_t _width) : mWidth(_width) {}
+ *
+ *      DEFINE_AND_DESCRIBE_C2STRUCT(VideoWidth)
+ *      C2FIELD(mWidth, "width")
+ *  };
+ *  ~~~~~~~~~~~~~
+ *
+ *  ~~~~~~~~~~~~~ (.cpp)
+ *  struct C2VideoWidthStruct {
+ *      int32_t mWidth;
+ *      C2VideoWidthStruct() = default; // optional default constructor
+ *      C2VideoWidthStruct(int32_t _width) : mWidth(_width) {}
+ *
+ *      DEFINE_C2STRUCT(VideoWidth)
+ *  } C2_PACK;
+ *
+ *  DESCRIBE_C2STRUCT(VideoWidth, {
+ *      C2FIELD(mWidth, "width")
+ *  })
+ *  ~~~~~~~~~~~~~
+ *
+ *  For flexible structures (those ending in T[]), use the flexible macros:
+ *
+ *  ~~~~~~~~~~~~~ (.cpp)
+ *  struct C2VideoFlexWidthsStruct {
+ *      int32_t mWidths[];
+ *      C2VideoFlexWidthsStruct(); // must have a default constructor
+ *
+ *  private:
+ *      // may have private constructors taking number of widths as the first argument
+ *      // This is used by the C2Param factory methods, e.g.
+ *      //   C2VideoFlexWidthsGlobalParam::alloc_unique(size_t, int32_t);
+ *      C2VideoFlexWidthsStruct(size_t flexCount, int32_t value) {
+ *          for (size_t i = 0; i < flexCount; ++i) {
+ *              mWidths[i] = value;
+ *          }
+ *      }
+ *
+ *      // If the last argument is T[N] or std::initializer_list<T>, the flexCount will
+ *      // be automatically calculated and passed by the C2Param factory methods, e.g.
+ *      //   int widths[] = { 1, 2, 3 };
+ *      //   C2VideoFlexWidthsGlobalParam::alloc_unique(widths);
+ *      template<unsigned N>
+ *      C2VideoFlexWidthsStruct(size_t flexCount, const int32_t(&init)[N]) {
+ *          for (size_t i = 0; i < flexCount; ++i) {
+ *              mWidths[i] = init[i];
+ *          }
+ *      }
+ *
+ *      DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(VideoFlexWidths, mWidths)
+ *      C2FIELD(mWidths, "widths")
+ *  };
+ *  ~~~~~~~~~~~~~
+ *
+ *  ~~~~~~~~~~~~~ (.cpp)
+ *  struct C2VideoFlexWidthsStruct {
+ *      int32_t mWidths[];
+ *      C2VideoFlexWidthsStruct(); // must have a default constructor
+ *
+ *      DEFINE_FLEX_C2STRUCT(VideoFlexWidths, mWidths)
+ *  } C2_PACK;
+ *
+ *  DESCRIBE_C2STRUCT(VideoFlexWidths, {
+ *      C2FIELD(mWidths, "widths")
+ *  })
+ *  ~~~~~~~~~~~~~
+ *
+ */
+#define C2FIELD(member, name) \
+  C2FieldDescriptor(&((_type*)(nullptr))->member, name),
+
+/// \deprecated
+#define C2SOLE_FIELD(member, name) \
+  C2FieldDescriptor(&_type::member, name, 0)
+
+/// Define a structure with matching baseIndex and start describing its fields.
+/// This must be at the end of the structure definition.
+#define DEFINE_AND_DESCRIBE_C2STRUCT(name) \
+    DEFINE_C2STRUCT(name) }  C2_PACK; \
+    const std::initializer_list<const C2FieldDescriptor> C2##name##Struct::fieldList = {
+
+/// Define a flexible structure with matching baseIndex and start describing its fields.
+/// This must be at the end of the structure definition.
+#define DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(name, flexMember) \
+    DEFINE_FLEX_C2STRUCT(name, flexMember) } C2_PACK; \
+    const std::initializer_list<const C2FieldDescriptor> C2##name##Struct::fieldList = {
+
+/**
+ * Parameter reflector class.
+ *
+ * This class centralizes the description of parameter structures. This can be shared
+ * by multiple components as describing a parameter does not imply support of that
+ * parameter. However, each supported parameter and any dependent structures within
+ * must be described by the parameter reflector provided by a component.
+ */
+class C2ParamReflector {
+public:
+    /**
+     *  Describes a parameter structure.
+     *
+     *  \param[in] paramIndex the base index of the parameter structure
+     *
+     *  \return the description of the parameter structure
+     *  \retval nullptr if the parameter is not supported by this reflector
+     *
+     *  This methods shall not block and return immediately.
+     *
+     *  \note this class does not take a set of indices because we would then prefer
+     *  to also return any dependent structures, and we don't want this logic to be
+     *  repeated in each reflector. Alternately, this could just return a map of all
+     *  descriptions, but we want to conserve memory if client only wants the description
+     *  of a few indices.
+     */
+    virtual std::unique_ptr<C2StructDescriptor> describe(C2Param::BaseIndex paramIndex) = 0;
+
+protected:
+    virtual ~C2ParamReflector() = default;
+};
+
+/**
+ * A useable supported values for a field.
+ *
+ * This can be either a range or a set of values. The range can be linear or geometric with a
+ * clear minimum and maximum value, and can have an optional step size or geometric ratio. Values
+ * can optionally represent flags.
+ *
+ * \note Do not use flags to represent bitfields. Use individual values or separate fields instead.
+ */
+template<typename T>
+struct C2TypedFieldSupportedValues {
+//public:
+    enum Type {
+        RANGE,      ///< a numeric range that can be continuous or discrete
+        VALUES,     ///< a list of values
+        FLAGS       ///< a list of flags that can be OR-ed
+    };
+
+    Type type;
+
+    struct {
+        T min;
+        T max;
+        T step;
+        T nom;
+        T denom;
+    } range;
+    std::vector<T> values;
+
+    C2TypedFieldSupportedValues(T min, T max, T step = T(std::is_floating_point<T>::value ? 0 : 1))
+        : type(RANGE),
+          range{min, max, step, (T)1, (T)1} { }
+
+    C2TypedFieldSupportedValues(T min, T max, T nom, T den) :
+        type(RANGE),
+        range{min, max, (T)0, nom, den} { }
+
+    C2TypedFieldSupportedValues(bool flags, std::initializer_list<T> list) :
+        type(flags ? FLAGS : VALUES),
+        values(list) {}
+};
+
+/**
+ * Generic supported values for a field.
+ *
+ * This can be either a range or a set of values. The range can be linear or geometric with a
+ * clear minimum and maximum value, and can have an optional step size or geometric ratio. Values
+ * can optionally represent flags.
+ *
+ * \note Do not use flags to represent bitfields. Use individual values or separate fields instead.
+ */
+struct C2FieldSupportedValues {
+//public:
+    enum Type {
+        RANGE,      ///< a numeric range that can be continuous or discrete
+        VALUES,     ///< a list of values
+        FLAGS       ///< a list of flags that can be OR-ed
+    };
+
+    Type type;
+
+    typedef C2Value::Primitive Primitive;
+
+    struct {
+        Primitive min;
+        Primitive max;
+        Primitive step;
+        Primitive nom;
+        Primitive denom;
+    } range;
+    std::vector<Primitive> values;
+
+    template<typename T>
+    C2FieldSupportedValues(T min, T max, T step = T(std::is_floating_point<T>::value ? 0 : 1))
+        : type(RANGE),
+          range{min, max, step, (T)1, (T)1} { }
+
+    template<typename T>
+    C2FieldSupportedValues(T min, T max, T nom, T den) :
+        type(RANGE),
+        range{min, max, (T)0, nom, den} { }
+
+    template<typename T>
+    C2FieldSupportedValues(bool flags, std::initializer_list<T> list)
+        : type(flags ? FLAGS : VALUES),
+          range{(T)0, (T)0, (T)0, (T)0, (T)0} {
+        for(T value : list) {
+            values.emplace_back(value);
+        }
+    }
+
+    template<typename T, typename E=decltype(C2FieldDescriptor::namedValuesFor(*(T*)0))>
+    C2FieldSupportedValues(bool flags, const T*)
+        : type(flags ? FLAGS : VALUES),
+          range{(T)0, (T)0, (T)0, (T)0, (T)0} {
+              C2FieldDescriptor::named_values_type named = C2FieldDescriptor::namedValuesFor(*(T*)0);
+        for (const C2FieldDescriptor::named_value_type &item : named) {
+            values.emplace_back(item.second);
+        }
+    }
+};
+
+/// @}
+
+}  // namespace android
+
+#endif  // C2PARAM_H_
diff --git a/media/libstagefright/codec2/include/C2ParamDef.h b/media/libstagefright/codec2/include/C2ParamDef.h
new file mode 100644
index 0000000..f369617
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2ParamDef.h
@@ -0,0 +1,901 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/** \file
+ * Templates used to declare parameters.
+ */
+#ifndef C2PARAM_DEF_H_
+#define C2PARAM_DEF_H_
+
+#include <type_traits>
+
+#include <C2Param.h>
+
+namespace android {
+
+/// \addtogroup Parameters
+/// @{
+
+/* ======================== UTILITY TEMPLATES FOR PARAMETER DEFINITIONS ======================== */
+
+/// \addtogroup internal
+/// @{
+
+/// Helper class that checks if a type has equality and inequality operators.
+struct C2_HIDE _C2Comparable_impl
+{
+    template<typename S, typename=decltype(S() == S())>
+    static std::true_type __testEQ(int);
+    template<typename>
+    static std::false_type __testEQ(...);
+
+    template<typename S, typename=decltype(S() != S())>
+    static std::true_type __testNE(int);
+    template<typename>
+    static std::false_type __testNE(...);
+};
+
+/**
+ * Helper template that returns if a type has equality and inequality operators.
+ *
+ * Use as _C2Comparable<typename S>::value.
+ */
+template<typename S>
+struct C2_HIDE _C2Comparable
+    : public std::integral_constant<bool, decltype(_C2Comparable_impl::__testEQ<S>(0))::value
+                        || decltype(_C2Comparable_impl::__testNE<S>(0))::value> {
+};
+
+///  Helper class that checks if a type has a baseIndex constant.
+struct C2_HIDE _C2BaseIndexHelper_impl
+{
+    template<typename S, int=S::baseIndex>
+    static std::true_type __testBaseIndex(int);
+    template<typename>
+    static std::false_type __testBaseIndex(...);
+};
+
+/// Helper template that verifies a type's baseIndex and creates it if the type does not have one.
+template<typename S, int BaseIndex,
+        bool HasBase=decltype(_C2BaseIndexHelper_impl::__testBaseIndex<S>(0))::value>
+struct C2_HIDE C2BaseIndexOverride {
+    // TODO: what if we allow structs without baseIndex?
+    static_assert(BaseIndex == S::baseIndex, "baseIndex differs from structure");
+};
+
+/// Specialization for types without a baseIndex.
+template<typename S, int BaseIndex>
+struct C2_HIDE C2BaseIndexOverride<S, BaseIndex, false> {
+public:
+    enum : uint32_t {
+        baseIndex = BaseIndex, ///< baseIndex override.
+    };
+};
+
+/// Helper template that adds a baseIndex to a type if it does not have one.
+template<typename S, int BaseIndex>
+struct C2_HIDE C2AddBaseIndex : public S, public C2BaseIndexOverride<S, BaseIndex> {};
+
+/**
+ * \brief Helper class to check struct requirements for parameters.
+ *
+ * Features:
+ *  - verify default constructor, no virtual methods, and no equality operators.
+ *  - expose typeIndex, and non-flex flexSize.
+ */
+template<typename S, int BaseIndex, unsigned TypeIndex>
+struct C2_HIDE C2StructCheck {
+    static_assert(
+            std::is_default_constructible<S>::value, "C2 structure must have default constructor");
+    static_assert(!std::is_polymorphic<S>::value, "C2 structure must not have virtual methods");
+    static_assert(!_C2Comparable<S>::value, "C2 structure must not have operator== or !=");
+
+public:
+    enum : uint32_t {
+        typeIndex = BaseIndex | TypeIndex
+    };
+
+protected:
+    enum : uint32_t {
+        flexSize = 0, // TODO: is this still needed? this may be confusing.
+    };
+};
+
+/// Helper class that checks if a type has an integer flexSize member.
+struct C2_HIDE _C2Flexible_impl {
+    /// specialization for types that have a flexSize member
+    template<typename S, unsigned=S::flexSize>
+    static std::true_type __testFlexSize(int);
+    template<typename>
+    static std::false_type __testFlexSize(...);
+};
+
+/// Helper template that returns if a type has an integer flexSize member.
+template<typename S>
+struct C2_HIDE _C2Flexible
+    : public std::integral_constant<bool, decltype(_C2Flexible_impl::__testFlexSize<S>(0))::value> {
+};
+
+/// Macro to test if a type is flexible (has a flexSize member).
+#define IF_FLEXIBLE(S) ENABLE_IF(_C2Flexible<S>::value)
+/// Shorthand for std::enable_if
+#define ENABLE_IF(cond) typename std::enable_if<cond>::type
+
+/// Helper template that exposes the flexible subtype of a struct.
+template<typename S, typename E=void>
+struct C2_HIDE _C2FlexHelper {
+    typedef void flexType;
+    enum : uint32_t { flexSize = 0 };
+};
+
+/// Specialization for flexible types.
+template<typename S>
+struct C2_HIDE _C2FlexHelper<S,
+        typename std::enable_if<!std::is_void<typename S::flexMemberType>::value>::type> {
+    typedef typename _C2FlexHelper<typename S::flexMemberType>::flexType flexType;
+    enum : uint32_t { flexSize = _C2FlexHelper<typename S::flexMemberType>::flexSize };
+};
+
+/// Specialization for flex arrays.
+template<typename S>
+struct C2_HIDE _C2FlexHelper<S[],
+        typename std::enable_if<std::is_void<typename _C2FlexHelper<S>::flexType>::value>::type> {
+    typedef S flexType;
+    enum : uint32_t { flexSize = sizeof(S) };
+};
+
+/**
+ * \brief Helper class to check flexible struct requirements and add common operations.
+ *
+ * Features:
+ *  - expose baseIndex and fieldList (this is normally inherited from the struct, but flexible
+ *    structs cannot be base classes and thus inherited from)
+ *  - disable copy assignment and construction (TODO: this is already done in the FLEX macro for the
+ *    flexible struct, so may not be needed here)
+ */
+template<typename S, int BaseIndex, unsigned TypeIndex>
+struct C2_HIDE C2FlexStructCheck : public C2StructCheck<S, BaseIndex, TypeIndex> {
+public:
+    enum : uint32_t {
+        /// \hideinitializer
+        baseIndex = BaseIndex | C2Param::BaseIndex::_kFlexibleFlag, ///< flexible struct base-index
+    };
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList; // TODO assign here
+
+    // default constructor needed because of the disabled copy constructor
+    inline C2FlexStructCheck() = default;
+
+protected:
+    // cannot copy flexible params
+    C2FlexStructCheck(const C2FlexStructCheck<S, BaseIndex, TypeIndex> &) = delete;
+    C2FlexStructCheck& operator= (const C2FlexStructCheck<S, BaseIndex, TypeIndex> &) = delete;
+
+    // constants used for helper methods
+    enum : uint32_t {
+        /// \hideinitializer
+        flexSize = _C2FlexHelper<S>::flexSize, ///< size of flexible type
+        /// \hideinitializer
+        maxSize = (uint32_t)std::min((size_t)UINT32_MAX, SIZE_MAX), // TODO: is this always u32 max?
+        /// \hideinitializer
+        baseSize = sizeof(S) + sizeof(C2Param), ///< size of the base param
+    };
+
+    /// returns the allocated size of this param with flexCount, or 0 if it would overflow.
+    inline static size_t calcSize(size_t flexCount, size_t size = baseSize) {
+        if (flexCount <= (maxSize - size) / S::flexSize) {
+            return size + S::flexSize * flexCount;
+        }
+        return 0;
+    }
+
+    /// dynamic new operator usable for params of type S
+    inline void* operator new(size_t size, size_t flexCount) noexcept {
+        // TODO: assert(size == baseSize);
+        size = calcSize(flexCount, size);
+        if (size > 0) {
+            return ::operator new(size);
+        }
+        return nullptr;
+    }
+};
+
+// TODO: this probably does not work.
+/// Expose fieldList from subClass;
+template<typename S, int BaseIndex, unsigned TypeIndex>
+const std::initializer_list<const C2FieldDescriptor> C2FlexStructCheck<S, BaseIndex, TypeIndex>::fieldList = S::fieldList;
+
+/// Define From() cast operators for params.
+#define DEFINE_CAST_OPERATORS(_type) \
+    inline static _type* From(C2Param *other) { \
+        return (_type*)C2Param::ifSuitable( \
+                other, sizeof(_type),_type::typeIndex, _type::flexSize, \
+                (_type::typeIndex & T::Index::kDirUndefined) != T::Index::kDirUndefined); \
+    } \
+    inline static const _type* From(const C2Param *other) { \
+        return const_cast<const _type*>(From(const_cast<C2Param *>(other))); \
+    } \
+    inline static _type* From(std::nullptr_t) { return nullptr; } \
+
+/**
+ * Define flexible allocators (alloc_shared or alloc_unique) for flexible params.
+ *  - P::alloc_xyz(flexCount, args...): allocate for given flex-count.
+ *  - P::alloc_xyz(args..., T[]): allocate for size of (and with) init array.
+ *  - P::alloc_xyz(T[]): allocate for size of (and with) init array with no other args.
+ *  - P::alloc_xyz(args..., std::initializer_list<T>): allocate for size of (and with) initializer
+ *    list.
+ */
+#define DEFINE_FLEXIBLE_ALLOC(_type, S, ptr) \
+    template<typename ...Args> \
+    inline static std::ptr##_ptr<_type> alloc_##ptr(size_t flexCount, const Args(&... args)) { \
+        return std::ptr##_ptr<_type>(new(flexCount) _type(flexCount, args...)); \
+    } \
+    /* NOTE: unfortunately this is not supported by clang yet */ \
+    template<typename ...Args, typename U=typename S::flexType, unsigned N> \
+    inline static std::ptr##_ptr<_type> alloc_##ptr(const Args(&... args), const U(&init)[N]) { \
+        return std::ptr##_ptr<_type>(new(N) _type(N, args..., init)); \
+    } \
+    /* so for now, specialize for no args */ \
+    template<typename U=typename S::flexType, unsigned N> \
+    inline static std::ptr##_ptr<_type> alloc_##ptr(const U(&init)[N]) { \
+        return std::ptr##_ptr<_type>(new(N) _type(N, init)); \
+    } \
+    template<typename ...Args, typename U=typename S::flexType> \
+    inline static std::ptr##_ptr<_type> alloc_##ptr( \
+            const Args(&... args), const std::initializer_list<U> &init) { \
+        return std::ptr##_ptr<_type>(new(init.size()) _type(init.size(), args..., init)); \
+    } \
+
+/**
+ * Define flexible methods alloc_shared, alloc_unique and flexCount.
+ */
+#define DEFINE_FLEXIBLE_METHODS(_type, S) \
+    DEFINE_FLEXIBLE_ALLOC(_type, S, shared) \
+    DEFINE_FLEXIBLE_ALLOC(_type, S, unique) \
+    inline size_t flexCount() const { \
+        static_assert(sizeof(_type) == _type::baseSize, "incorrect baseSize"); \
+        size_t sz = this->size(); \
+        if (sz >= sizeof(_type)) { \
+            return (sz - sizeof(_type)) / _type::flexSize; \
+        } \
+        return 0; \
+    } \
+
+/// Mark flexible member variable and make structure flexible.
+#define FLEX(cls, m) \
+    C2_DO_NOT_COPY(cls) \
+private: \
+    C2PARAM_MAKE_FRIENDS \
+    /* default constructor with flexCount */ \
+    inline cls(size_t) : cls() {} \
+    /** \if 0 */ \
+    template<typename, typename> friend struct _C2FlexHelper; \
+    typedef decltype(m) flexMemberType; \
+public: \
+    /* constexpr static flexMemberType cls::* flexMember = &cls::m; */ \
+    typedef typename _C2FlexHelper<flexMemberType>::flexType flexType; \
+    static_assert(\
+            !std::is_void<flexType>::value, \
+            "member is not flexible, or a flexible array of a flexible type"); \
+    enum : uint32_t { flexSize = _C2FlexHelper<flexMemberType>::flexSize }; \
+    /** \endif */ \
+
+/// @}
+
+/**
+ * Global-parameter template.
+ *
+ * Base template to define a global setting/tuning or info based on a structure and
+ * an optional BaseIndex. Global parameters are not tied to a port (input or output).
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields of the wrapped
+ * structure can be accessed directly, and constructors and potential public methods are also
+ * wrapped.
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ */
+template<typename T, typename S, int BaseIndex=S::baseIndex, class Flex=void>
+struct C2_HIDE C2GlobalParam : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+        public C2StructCheck<S, BaseIndex, T::indexFlags | T::Type::kDirGlobal> {
+private:
+    typedef C2GlobalParam<T, S, BaseIndex> _type;
+
+public:
+    /// Wrapper around base structure's constructor.
+    template<typename ...Args>
+    inline C2GlobalParam(const Args(&... args)) : T(sizeof(_type), _type::typeIndex), S(args...) { }
+
+    DEFINE_CAST_OPERATORS(_type)
+};
+
+/**
+ * Global-parameter template for flexible structures.
+ *
+ * Base template to define a global setting/tuning or info based on a flexible structure and
+ * an optional BaseIndex. Global parameters are not tied to a port (input or output).
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped flexible structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields and methods of flexible
+ * structures can be accessed via the m member variable; however, the constructors of the structure
+ * are wrapped directly. (This is because flexible types cannot be subclassed.)
+ */
+template<typename T, typename S, int BaseIndex>
+struct C2_HIDE C2GlobalParam<T, S, BaseIndex, IF_FLEXIBLE(S)>
+    : public T, public C2FlexStructCheck<S, BaseIndex, T::indexFlags | T::Type::kDirGlobal> {
+private:
+    typedef C2GlobalParam<T, S, BaseIndex> _type;
+
+    /// Wrapper around base structure's constructor.
+    template<typename ...Args>
+    inline C2GlobalParam(size_t flexCount, const Args(&... args))
+        : T(_type::calcSize(flexCount), _type::typeIndex), m(flexCount, args...) { }
+
+public:
+    S m; ///< wrapped flexible structure
+
+    DEFINE_FLEXIBLE_METHODS(_type, S)
+    DEFINE_CAST_OPERATORS(_type)
+};
+
+/**
+ * Port-parameter template.
+ *
+ * Base template to define a port setting/tuning or info based on a structure and
+ * an optional BaseIndex. Port parameters are tied to a port (input or output), but not to a
+ * specific stream.
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields of the wrapped
+ * structure can be accessed directly, and constructors and potential public methods are also
+ * wrapped.
+ *
+ * There are 3 flavors of port parameters: unspecified, input and output. Parameters with
+ * unspecified port expose a setPort method, and add an initial port parameter to the constructor.
+ */
+template<typename T, typename S, int BaseIndex=S::baseIndex, class Flex=void>
+struct C2_HIDE C2PortParam : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+        private C2StructCheck<S, BaseIndex, T::indexFlags | T::Index::kDirUndefined> {
+private:
+    typedef C2PortParam<T, S, BaseIndex> _type;
+
+public:
+    /// Default constructor.
+    inline C2PortParam() : T(sizeof(_type), _type::typeIndex) { }
+    template<typename ...Args>
+    /// Wrapper around base structure's constructor while specifying port/direction.
+    inline C2PortParam(bool _output, const Args(&... args))
+        : T(sizeof(_type), _output ? output::typeIndex : input::typeIndex), S(args...) { }
+    /// Set port/direction.
+    inline void setPort(bool output) { C2Param::setPort(output); }
+
+    DEFINE_CAST_OPERATORS(_type)
+
+    /// Specialization for an input port parameter.
+    struct input : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2StructCheck<S, BaseIndex, T::indexFlags | T::Index::kDirInput> {
+        /// Wrapper around base structure's constructor.
+        template<typename ...Args>
+        inline input(const Args(&... args)) : T(sizeof(_type), input::typeIndex), S(args...) { }
+
+        DEFINE_CAST_OPERATORS(input)
+
+    };
+
+    /// Specialization for an output port parameter.
+    struct output : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2StructCheck<S, BaseIndex, T::indexFlags | T::Index::kDirOutput> {
+        /// Wrapper around base structure's constructor.
+        template<typename ...Args>
+        inline output(const Args(&... args)) : T(sizeof(_type), output::typeIndex), S(args...) { }
+
+        DEFINE_CAST_OPERATORS(output)
+    };
+};
+
+/**
+ * Port-parameter template for flexible structures.
+ *
+ * Base template to define a port setting/tuning or info based on a flexible structure and
+ * an optional BaseIndex. Port parameters are tied to a port (input or output), but not to a
+ * specific stream.
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped flexible structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields and methods of flexible
+ * structures can be accessed via the m member variable; however, the constructors of the structure
+ * are wrapped directly. (This is because flexible types cannot be subclassed.)
+ *
+ * There are 3 flavors of port parameters: unspecified, input and output. Parameters with
+ * unspecified port expose a setPort method, and add an initial port parameter to the constructor.
+ */
+template<typename T, typename S, int BaseIndex>
+struct C2_HIDE C2PortParam<T, S, BaseIndex, IF_FLEXIBLE(S)>
+    : public T, public C2FlexStructCheck<S, BaseIndex, T::indexFlags | T::Type::kDirUndefined> {
+private:
+    typedef C2PortParam<T, S, BaseIndex> _type;
+
+    /// Default constructor for basic allocation: new(flexCount) P.
+    inline C2PortParam(size_t flexCount) : T(_type::calcSize(flexCount), _type::typeIndex) { }
+    template<typename ...Args>
+    /// Wrapper around base structure's constructor while also specifying port/direction.
+    inline C2PortParam(size_t flexCount, bool _output, const Args(&... args))
+        : T(_type::calcSize(flexCount), _output ? output::typeIndex : input::typeIndex),
+          m(flexCount, args...) { }
+
+public:
+    /// Set port/direction.
+    inline void setPort(bool output) { C2Param::setPort(output); }
+
+    S m; ///< wrapped flexible structure
+
+    DEFINE_FLEXIBLE_METHODS(_type, S)
+    DEFINE_CAST_OPERATORS(_type)
+
+    /// Specialization for an input port parameter.
+    struct input : public T, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2FlexStructCheck<S, BaseIndex, T::indexFlags | T::Index::kDirInput> {
+    private:
+        /// Wrapper around base structure's constructor while also specifying port/direction.
+        template<typename ...Args>
+        inline input(size_t flexCount, const Args(&... args))
+            : T(_type::calcSize(flexCount), input::typeIndex), m(flexCount, args...) { }
+
+    public:
+        S m; ///< wrapped flexible structure
+
+        DEFINE_FLEXIBLE_METHODS(input, S)
+        DEFINE_CAST_OPERATORS(input)
+    };
+
+    /// Specialization for an output port parameter.
+    struct output : public T, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2FlexStructCheck<S, BaseIndex, T::indexFlags | T::Index::kDirOutput> {
+    private:
+        /// Wrapper around base structure's constructor while also specifying port/direction.
+        template<typename ...Args>
+        inline output(size_t flexCount, const Args(&... args))
+            : T(_type::calcSize(flexCount), output::typeIndex), m(flexCount, args...) { }
+
+    public:
+        S m; ///< wrapped flexible structure
+
+        DEFINE_FLEXIBLE_METHODS(output, S)
+        DEFINE_CAST_OPERATORS(output)
+    };
+};
+
+/**
+ * Stream-parameter template.
+ *
+ * Base template to define a stream setting/tuning or info based on a structure and
+ * an optional BaseIndex. Stream parameters are tied to a specific stream on a port (input or
+ * output).
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields of the wrapped
+ * structure can be accessed directly, and constructors and potential public methods are also
+ * wrapped.
+ *
+ * There are 3 flavors of stream parameters: unspecified port, input and output. All of these expose
+ * a setStream method and an extra initial streamID parameter for the constructor. Moreover,
+ * parameters with unspecified port expose a setPort method, and add an additional initial port
+ * parameter to the constructor.
+ */
+template<typename T, typename S, int BaseIndex=S::baseIndex, class Flex=void>
+struct C2_HIDE C2StreamParam : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+        private C2StructCheck<S, BaseIndex,
+                T::indexFlags | T::Index::kStreamFlag | T::Index::kDirUndefined> {
+private:
+    typedef C2StreamParam<T, S, BaseIndex> _type;
+
+public:
+    /// Default constructor. Port/direction and stream-ID is undefined.
+    inline C2StreamParam() : T(sizeof(_type), _type::typeIndex) { }
+    /// Wrapper around base structure's constructor while also specifying port/direction and
+    /// stream-ID.
+    template<typename ...Args>
+    inline C2StreamParam(bool _output, unsigned stream, const Args(&... args))
+        : T(sizeof(_type), _output ? output::typeIndex : input::typeIndex, stream),
+          S(args...) { }
+    /// Set port/direction.
+    inline void setPort(bool output) { C2Param::setPort(output); }
+    /// Set stream-id. \retval true if the stream-id was successfully set.
+    inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+    DEFINE_CAST_OPERATORS(_type)
+
+    /// Specialization for an input stream parameter.
+    struct input : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2StructCheck<S, BaseIndex,
+                    T::indexFlags | T::Index::kStreamFlag | T::Type::kDirInput> {
+        /// Default constructor. Stream-ID is undefined.
+        inline input() : T(sizeof(_type), input::typeIndex) { }
+        /// Wrapper around base structure's constructor while also specifying stream-ID.
+        template<typename ...Args>
+        inline input(unsigned stream, const Args(&... args))
+            : T(sizeof(_type), input::typeIndex, stream), S(args...) { }
+        /// Set stream-id. \retval true if the stream-id was successfully set.
+        inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+        DEFINE_CAST_OPERATORS(input)
+    };
+
+    /// Specialization for an output stream parameter.
+    struct output : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2StructCheck<S, BaseIndex,
+                    T::indexFlags | T::Index::kStreamFlag | T::Type::kDirOutput> {
+        /// Default constructor. Stream-ID is undefined.
+        inline output() : T(sizeof(_type), output::typeIndex) { }
+        /// Wrapper around base structure's constructor while also specifying stream-ID.
+        template<typename ...Args>
+        inline output(unsigned stream, const Args(&... args))
+            : T(sizeof(_type), output::typeIndex, stream), S(args...) { }
+        /// Set stream-id. \retval true if the stream-id was successfully set.
+        inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+        DEFINE_CAST_OPERATORS(output)
+    };
+};
+
+/**
+ * Stream-parameter template for flexible structures.
+ *
+ * Base template to define a stream setting/tuning or info based on a flexible structure and
+ * an optional BaseIndex. Stream parameters are tied to a specific stream on a port (input or
+ * output).
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped flexible structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields and methods of flexible
+ * structures can be accessed via the m member variable; however, the constructors of the structure
+ * are wrapped directly. (This is because flexible types cannot be subclassed.)
+ *
+ * There are 3 flavors of stream parameters: unspecified port, input and output. All of these expose
+ * a setStream method and an extra initial streamID parameter for the constructor. Moreover,
+ * parameters with unspecified port expose a setPort method, and add an additional initial port
+ * parameter to the constructor.
+ */
+template<typename T, typename S, int BaseIndex>
+struct C2_HIDE C2StreamParam<T, S, BaseIndex, IF_FLEXIBLE(S)>
+    : public T, public C2BaseIndexOverride<S, BaseIndex>,
+      private C2FlexStructCheck<S, BaseIndex,
+              T::indexFlags | T::Index::kStreamFlag | T::Index::kDirUndefined> {
+private:
+    typedef C2StreamParam<T, S> _type;
+    /// Default constructor. Port/direction and stream-ID is undefined.
+    inline C2StreamParam(size_t flexCount) : T(_type::calcSize(flexCount), _type::typeIndex, 0u) { }
+    /// Wrapper around base structure's constructor while also specifying port/direction and
+    /// stream-ID.
+    template<typename ...Args>
+    inline C2StreamParam(size_t flexCount, bool _output, unsigned stream, const Args(&... args))
+        : T(_type::calcSize(flexCount), _output ? output::typeIndex : input::typeIndex, stream),
+          m(flexCount, args...) { }
+
+public:
+    S m; ///< wrapped flexible structure
+
+    /// Set port/direction.
+    inline void setPort(bool output) { C2Param::setPort(output); }
+    /// Set stream-id. \retval true if the stream-id was successfully set.
+    inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+    DEFINE_FLEXIBLE_METHODS(_type, S)
+    DEFINE_CAST_OPERATORS(_type)
+
+    /// Specialization for an input stream parameter.
+    struct input : public T, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2FlexStructCheck<S, BaseIndex,
+                    T::indexFlags | T::Index::kStreamFlag | T::Type::kDirInput> {
+    private:
+        /// Default constructor. Stream-ID is undefined.
+        inline input(size_t flexCount) : T(_type::calcSize(flexCount), input::typeIndex) { }
+        /// Wrapper around base structure's constructor while also specifying stream-ID.
+        template<typename ...Args>
+        inline input(size_t flexCount, unsigned stream, const Args(&... args))
+            : T(_type::calcSize(flexCount), input::typeIndex, stream), m(flexCount, args...) { }
+
+    public:
+        S m; ///< wrapped flexible structure
+
+        /// Set stream-id. \retval true if the stream-id was successfully set.
+        inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+        DEFINE_FLEXIBLE_METHODS(input, S)
+        DEFINE_CAST_OPERATORS(input)
+    };
+
+    /// Specialization for an output stream parameter.
+    struct output : public T, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2FlexStructCheck<S, BaseIndex,
+                    T::indexFlags | T::Index::kStreamFlag | T::Type::kDirOutput> {
+    private:
+        /// Default constructor. Stream-ID is undefined.
+        inline output(size_t flexCount) : T(_type::calcSize(flexCount), output::typeIndex) { }
+        /// Wrapper around base structure's constructor while also specifying stream-ID.
+        template<typename ...Args>
+        inline output(size_t flexCount, unsigned stream, const Args(&... args))
+            : T(_type::calcSize(flexCount), output::typeIndex, stream), m(flexCount, args...) { }
+
+    public:
+        S m; ///< wrapped flexible structure
+
+        /// Set stream-id. \retval true if the stream-id was successfully set.
+        inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+        DEFINE_FLEXIBLE_METHODS(output, S)
+        DEFINE_CAST_OPERATORS(output)
+    };
+};
+
+/* ======================== SIMPLE VALUE PARAMETERS ======================== */
+
+/**
+ * \ingroup internal
+ * A structure template encapsulating a single element with default constructors and no base-index.
+ */
+template<typename T>
+struct C2SimpleValueStruct {
+    T mValue; ///< simple value of the structure
+    // Default constructor.
+    inline C2SimpleValueStruct() = default;
+    // Constructor with an initial value.
+    inline C2SimpleValueStruct(T value) : mValue(value) {}
+    DEFINE_C2STRUCT_NO_BASE(SimpleValue)
+};
+
+// TODO: move this and next to some generic place
+/**
+ * Interface to a block of (mapped) memory containing an array of some type (T).
+ */
+template<typename T>
+struct C2MemoryBlock {
+    /// \returns the number of elements in this block.
+    virtual size_t size() const = 0;
+    /// \returns a const pointer to the start of this block. Care must be taken to not read outside
+    /// the block.
+    virtual const T *data() const = 0; // TODO: should this be friend access only in some C2Memory module?
+    /// \returns a pointer to the start of this block. Care must be taken to not read or write
+    /// outside the block.
+    inline T *data() { return const_cast<T*>(data()); }
+protected:
+    // TODO: for now it should never be deleted as C2MemoryBlock
+    virtual ~C2MemoryBlock() = default;
+};
+
+/**
+ * Interface to a block of memory containing a constant (constexpr) array of some type (T).
+ */
+template<typename T>
+struct C2ConstMemoryBlock : public C2MemoryBlock<T> {
+    virtual const T * data() const { return mData; }
+    virtual size_t size() const { return mSize; }
+
+    /// Constructor.
+    template<unsigned N>
+    inline constexpr C2ConstMemoryBlock(const T(&init)[N]) : mData(init), mSize(N) {}
+
+private:
+    const T *mData;
+    const size_t mSize;
+};
+
+/// \addtogroup internal
+/// @{
+
+/// Helper class to initialize flexible arrays with various initalizers.
+struct _C2ValueArrayHelper {
+    // char[]-s are used as null terminated strings, so the last element is never inited.
+
+    /// Initialize a flexible array using a constexpr memory block.
+    template<typename T>
+    static void init(T(&array)[], size_t arrayLen, const C2MemoryBlock<T> &block) {
+        // reserve last element for terminal 0 for strings
+        if (arrayLen && std::is_same<T, char>::value) {
+            --arrayLen;
+        }
+        if (block.data()) {
+            memcpy(array, block.data(), std::min(arrayLen, block.size()) * sizeof(T));
+        }
+    }
+
+    /// Initialize a flexible array using an initializer list.
+    template<typename T>
+    static void init(T(&array)[], size_t arrayLen, const std::initializer_list<T> &init) {
+        size_t ix = 0;
+        // reserve last element for terminal 0 for strings
+        if (arrayLen && std::is_same<T, char>::value) {
+            --arrayLen;
+        }
+        for (const T &item : init) {
+            if (ix == arrayLen) {
+                break;
+            }
+            array[ix++] = item;
+        }
+    }
+
+    /// Initialize a flexible array using another flexible array.
+    template<typename T, unsigned N>
+    static void init(T(&array)[], size_t arrayLen, const T(&str)[N]) {
+        // reserve last element for terminal 0 for strings
+        if (arrayLen && std::is_same<T, char>::value) {
+            --arrayLen;
+        }
+        if (arrayLen) {
+            strncpy(array, str, std::min(arrayLen, (size_t)N));
+        }
+    }
+};
+
+/**
+ * Specialization for a flexible blob and string arrays. A structure template encapsulating a single
+ * flexible array member with default flexible constructors and no base-index. This type cannot be
+ * constructed on its own as it's size is 0.
+ *
+ * \internal This is different from C2SimpleArrayStruct<T[]> simply because its member has the name
+ * as mValue to reflect this is a single value.
+ */
+template<typename T>
+struct C2SimpleValueStruct<T[]> {
+    static_assert(std::is_same<T, char>::value || std::is_same<T, uint8_t>::value,
+                  "C2SimpleValueStruct<T[]> is only for BLOB or STRING");
+    T mValue[];
+
+    inline C2SimpleValueStruct() = default;
+    DEFINE_C2STRUCT_NO_BASE(SimpleValue)
+    FLEX(C2SimpleValueStruct, mValue)
+
+private:
+    inline C2SimpleValueStruct(size_t flexCount, const C2MemoryBlock<T> &block) {
+        _C2ValueArrayHelper::init(mValue, flexCount, block);
+    }
+
+    inline C2SimpleValueStruct(size_t flexCount, const std::initializer_list<T> &init) {
+        _C2ValueArrayHelper::init(mValue, flexCount, init);
+    }
+
+    template<unsigned N>
+    inline C2SimpleValueStruct(size_t flexCount, const T(&init)[N]) {
+        _C2ValueArrayHelper::init(mValue, flexCount, init);
+    }
+};
+
+/// @}
+
+/**
+ * A structure template encapsulating a single flexible array element of a specific type (T) with
+ * default constructors and no base-index. This type cannot be constructed on its own as it's size
+ * is 0. Instead, it is meant to be used as a parameter, e.g.
+ *
+ *   typedef C2StreamParam<C2Info, C2SimpleArrayStruct<C2MyFancyStruct>,
+ *           kParamIndexMyFancyArrayStreamParam> C2MyFancyArrayStreamInfo;
+ */
+template<typename T>
+struct C2SimpleArrayStruct {
+    static_assert(!std::is_same<T, char>::value && !std::is_same<T, uint8_t>::value,
+                  "use C2SimpleValueStruct<T[]> is for BLOB or STRING");
+
+    T mValues[]; ///< array member
+    /// Default constructor
+    inline C2SimpleArrayStruct() = default;
+    DEFINE_C2STRUCT_NO_BASE(SimpleArray)
+    FLEX(C2SimpleArrayStruct, mValues)
+
+private:
+    /// Construct from a C2MemoryBlock.
+    /// Used only by the flexible parameter allocators (alloc_unique & alloc_shared).
+    inline C2SimpleArrayStruct(size_t flexCount, const C2MemoryBlock<T> &block) {
+        _C2ValueArrayHelper::init(mValues, flexCount, block);
+    }
+
+    /// Construct from an initializer list.
+    /// Used only by the flexible parameter allocators (alloc_unique & alloc_shared).
+    inline C2SimpleArrayStruct(size_t flexCount, const std::initializer_list<T> &init) {
+        _C2ValueArrayHelper::init(mValues, flexCount, init);
+    }
+
+    /// Construct from another flexible array.
+    /// Used only by the flexible parameter allocators (alloc_unique & alloc_shared).
+    template<unsigned N>
+    inline C2SimpleArrayStruct(size_t flexCount, const T(&init)[N]) {
+        _C2ValueArrayHelper::init(mValues, flexCount, init);
+    }
+};
+
+/**
+ * \addtogroup simplevalue Simple value and array structures.
+ * @{
+ *
+ * Simple value structures.
+ *
+ * Structures containing a single simple value. These can be reused to easily define simple
+ * parameters of various types:
+ *
+ *   typedef C2PortParam<C2Tuning, C2Int32Value, kParamIndexMyIntegerPortParam>
+ *           C2MyIntegerPortParamTuning;
+ *
+ * They contain a single member (mValue or mValues) that is described as "value" or "values".
+ */
+/// A 32-bit signed integer parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<int32_t> C2Int32Value;
+/// A 32-bit signed integer array parameter in mValues, described as "values"
+typedef C2SimpleArrayStruct<int32_t> C2Int32Array;
+/// A 32-bit unsigned integer parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<uint32_t> C2Uint32Value;
+/// A 32-bit unsigned integer array parameter in mValues, described as "values"
+typedef C2SimpleArrayStruct<uint32_t> C2Uint32Array;
+/// A 64-bit signed integer parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<int64_t> C2Int64Value;
+/// A 64-bit signed integer array parameter in mValues, described as "values"
+typedef C2SimpleArrayStruct<int64_t> C2Int64Array;
+/// A 64-bit unsigned integer parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<uint64_t> C2Uint64Value;
+/// A 64-bit unsigned integer array parameter in mValues, described as "values"
+typedef C2SimpleArrayStruct<uint64_t> C2Uint64Array;
+/// A float parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<float> C2FloatValue;
+/// A float array parameter in mValues, described as "values"
+typedef C2SimpleArrayStruct<float> C2FloatArray;
+/// A blob flexible parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<uint8_t[]> C2BlobValue;
+/// A string flexible parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<char[]> C2StringValue;
+
+#if 1
+template<typename T>
+const std::initializer_list<const C2FieldDescriptor> C2SimpleValueStruct<T>::fieldList = { C2FIELD(mValue, "value") };
+template<typename T>
+const std::initializer_list<const C2FieldDescriptor> C2SimpleValueStruct<T[]>::fieldList = { C2FIELD(mValue, "value") };
+template<typename T>
+const std::initializer_list<const C2FieldDescriptor> C2SimpleArrayStruct<T>::fieldList = { C2FIELD(mValues, "values") };
+#else
+// This seem to be able to be handled by the template above
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<int32_t>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<uint32_t>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<int64_t>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<uint64_t>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<float>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<uint8_t[]>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<char[]>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleArrayStruct<int32_t>, { C2FIELD(mValues, "values") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleArrayStruct<uint32_t>, { C2FIELD(mValues, "values") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleArrayStruct<int64_t>, { C2FIELD(mValues, "values") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleArrayStruct<uint64_t>, { C2FIELD(mValues, "values") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleArrayStruct<float>, { C2FIELD(mValues, "values") });
+#endif
+
+/// @}
+
+/// @}
+
+}  // namespace android
+
+#endif  // C2PARAM_DEF_H_
diff --git a/media/libstagefright/codec2/include/C2Work.h b/media/libstagefright/codec2/include/C2Work.h
new file mode 100644
index 0000000..a42d11a
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2Work.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2WORK_H_
+
+#define C2WORK_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <C2Param.h>
+#include <C2Buffer.h>
+#include <C2Config.h>
+
+#include <memory>
+#include <list>
+#include <vector>
+
+typedef int status_t;
+
+namespace android {
+
+/// \defgroup work Work and data processing
+/// @{
+
+struct C2SettingResult {
+    enum Failure {
+        READ_ONLY,  ///< parameter is read-only and cannot be set
+        MISMATCH,   ///< parameter mismatches input data
+        BAD_VALUE,  ///< parameter does not accept value
+        BAD_TYPE,   ///< parameter is not supported
+        BAD_PORT,   ///< parameter is not supported on the specific port
+        BAD_INDEX,  ///< parameter is not supported on the specific stream
+        CONFLICT,   ///< parameter is in conflict with another setting
+    };
+
+    C2ParamField field;
+    Failure failure;
+    std::unique_ptr<C2FieldSupportedValues> supportedValues; //< if different from normal (e.g. in conflict w/another param or input data)
+    std::list<C2ParamField> conflictingFields;
+};
+
+// ================================================================================================
+//  WORK
+// ================================================================================================
+
+// node_id-s
+typedef uint32_t node_id;
+
+enum flags_t : uint32_t {
+    BUFFERFLAG_CODEC_CONFIG,
+    BUFFERFLAG_DROP_FRAME,
+    BUFFERFLAG_END_OF_STREAM,
+};
+
+enum {
+    kParamIndexWorkOrdinal,
+};
+
+struct C2WorkOrdinalStruct {
+    uint64_t timestamp;
+    uint64_t frame_index;    // submission ordinal on the initial component
+    uint64_t custom_ordinal; // can be given by the component, e.g. decode order
+
+    DEFINE_AND_DESCRIBE_C2STRUCT(WorkOrdinal)
+    C2FIELD(timestamp, "timestamp")
+    C2FIELD(frame_index, "frame-index")
+    C2FIELD(custom_ordinal, "custom-ordinal")
+};
+
+struct C2BufferPack {
+//public:
+    flags_t  flags;
+    C2WorkOrdinalStruct ordinal;
+    std::vector<std::shared_ptr<C2Buffer>> buffers;
+    //< for initial work item, these may also come from the parser - if provided
+    //< for output buffers, these are the responses to requestedInfos
+    std::list<std::unique_ptr<C2Info>>       infos;
+    std::list<std::shared_ptr<C2InfoBuffer>> infoBuffers;
+};
+
+struct C2Worklet {
+//public:
+    // IN
+    node_id component;
+
+    std::list<std::unique_ptr<C2Param>> tunings; //< tunings to be applied before processing this
+                                                 // worklet
+    std::list<C2Param::Type> requestedInfos;
+    std::vector<std::shared_ptr<C2BlockAllocator>> allocators; //< This vector shall be the same size as
+                                                          //< output.buffers.
+
+    // OUT
+    C2BufferPack output;
+    std::list<std::unique_ptr<C2SettingResult>> failures;
+};
+
+/**
+ * This structure holds information about all a single work item.
+ *
+ * This structure shall be passed by the client to the component for the first worklet. As such,
+ * worklets must not be empty. The ownership of this object is passed.
+ *
+ * input:
+ *      The input data to be processed. This is provided by the client with ownership. When the work
+ *      is returned, the input buffer-pack's buffer vector shall contain nullptrs.
+ *
+ * worklets:
+ *      The chain of components and associated allocators, tunings and info requests that the data
+ *      must pass through. If this has more than a single element, the tunnels between successive
+ *      components of the worklet chain must have been (successfully) pre-registered at the time
+ *      the work is submitted. Allocating the output buffers in the worklets is the responsibility
+ *      of each component. Upon work submission, each output buffer-pack shall be an appropriately
+ *      sized vector containing nullptrs. When the work is completed/returned to the client,
+ *
+ * worklets_processed:
+ *      It shall be initialized to 0 by the client when the work is submitted.
+ *      It shall contain the number of worklets that were successfully processed when the work is
+ *      returned. If this is less then the number of worklets, result must not be success.
+ *      It must be in the range of [0, worklets.size()].
+ *
+ * result:
+ *      The final outcome of the work. If 0 when work is returned, it is assumed that all worklets
+ *      have been processed.
+ */
+struct C2Work {
+//public:
+    // pre-chain infos (for portions of a tunneling chain that happend before this work-chain for
+    // this work item - due to framework facilitated (non-tunneled) work-chaining)
+    std::list<std::pair<std::unique_ptr<C2PortMimeConfig>, std::unique_ptr<C2Info>>> preChainInfos;
+    std::list<std::pair<std::unique_ptr<C2PortMimeConfig>, std::unique_ptr<C2Buffer>>> preChainInfoBlobs;
+
+    C2BufferPack input;
+    std::list<std::unique_ptr<C2Worklet>> worklets;
+
+    uint32_t worklets_processed;
+    status_t result;
+};
+
+struct C2WorkOutline {
+//public:
+    C2WorkOrdinalStruct ordinal;
+    std::list<node_id> chain;
+};
+
+/// @}
+
+}  // namespace android
+
+#endif  // C2WORK_H_
diff --git a/media/libstagefright/codec2/tests/Android.mk b/media/libstagefright/codec2/tests/Android.mk
new file mode 100644
index 0000000..49c4253
--- /dev/null
+++ b/media/libstagefright/codec2/tests/Android.mk
@@ -0,0 +1,37 @@
+# Build the unit tests.
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+
+LOCAL_MODULE := codec2_test
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_SRC_FILES := \
+	vndk/C2UtilTest.cpp \
+	C2_test.cpp \
+	C2Param_test.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+	libcutils \
+	libstagefright_codec2 \
+	liblog
+
+LOCAL_C_INCLUDES := \
+	frameworks/av/media/libstagefright/codec2/include \
+	frameworks/av/media/libstagefright/codec2/vndk/include \
+	$(TOP)/frameworks/native/include/media/openmax \
+
+LOCAL_CFLAGS += -Werror -Wall -std=c++14
+LOCAL_CLANG := true
+
+include $(BUILD_NATIVE_TEST)
+
+# Include subdirectory makefiles
+# ============================================================
+
+# If we're building with ONE_SHOT_MAKEFILE (mm, mmm), then what the framework
+# team really wants is to build the stuff defined by this makefile.
+ifeq (,$(ONE_SHOT_MAKEFILE))
+include $(call first-makefiles-under,$(LOCAL_PATH))
+endif
diff --git a/media/libstagefright/codec2/tests/C2Param_test.cpp b/media/libstagefright/codec2/tests/C2Param_test.cpp
new file mode 100644
index 0000000..ec82c84
--- /dev/null
+++ b/media/libstagefright/codec2/tests/C2Param_test.cpp
@@ -0,0 +1,2687 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "C2Param_test"
+
+#include <gtest/gtest.h>
+
+#include <util/C2ParamUtils.h>
+#include <C2ParamDef.h>
+
+namespace android {
+
+void PrintTo(const _C2FieldId &id, ::std::ostream* os) {
+    *os << "@" << id._mOffset << "+" << id._mSize;
+}
+
+void PrintTo(const C2FieldDescriptor &fd, ::std::ostream *os) {
+    using FD=C2FieldDescriptor;
+    switch (fd.type()) {
+    case FD::INT32: *os << "i32"; break;
+    case FD::INT64: *os << "i64"; break;
+    case FD::UINT32: *os << "u32"; break;
+    case FD::UINT64: *os << "u64"; break;
+    case FD::FLOAT: *os << "float"; break;
+    case FD::STRING: *os << "char"; break;
+    case FD::BLOB: *os << "u8"; break;
+    default:
+        if (fd.type() & FD::STRUCT_FLAG) {
+            *os << "struct-" << (fd.type() & ~FD::STRUCT_FLAG);
+        } else {
+            *os << "type-" << fd.type();
+        }
+    }
+    *os << " " << fd.name();
+    if (fd.length() > 1) {
+        *os << "[" << fd.length() << "]";
+    } else if (fd.length() == 0) {
+        *os << "[]";
+    }
+    *os << " (";
+    PrintTo(fd._mFieldId, os);
+    *os << "*" << fd.length() << ")";
+}
+
+enum C2ParamIndexType {
+    kParamIndexNumber,
+    kParamIndexNumbers,
+    kParamIndexNumber2,
+    kParamIndexVendorStart = C2Param::BaseIndex::kVendorStart,
+    kParamIndexVendorNumbers,
+};
+
+void ffff(int(*)(int)) {}
+
+/* ============================= STRUCT DECLARATION AND DESCRIPTION ============================= */
+
+typedef C2FieldDescriptor FD;
+
+class C2ParamTest : public ::testing::Test {
+};
+
+class C2ParamTest_ParamFieldList
+        : public ::testing::TestWithParam<std::initializer_list<const C2FieldDescriptor>> {
+};
+
+enum {
+    kParamIndexSize,
+    kParamIndexTestA,
+    kParamIndexTestB,
+    kParamIndexTestFlexS32,
+    kParamIndexTestFlexEndS32,
+    kParamIndexTestFlexS64,
+    kParamIndexTestFlexEndS64,
+    kParamIndexTestFlexSize,
+    kParamIndexTestFlexEndSize,
+};
+
+struct C2SizeStruct {
+    int32_t mNumber;
+    int32_t mHeight;
+    enum : uint32_t { baseIndex = kParamIndexSize };                        // <= needed for C2FieldDescriptor
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;  // <= needed for C2FieldDescriptor
+    const static FD::Type TYPE = (FD::Type)(baseIndex | FD::STRUCT_FLAG);
+};
+
+DEFINE_NO_NAMED_VALUES_FOR(C2SizeStruct)
+
+// Test 1. define a structure without any helper methods
+
+bool operator==(const C2FieldDescriptor &a, const C2FieldDescriptor &b) {
+    return a.type() == b.type()
+            && a.length() == b.length()
+            && strcmp(a.name(), b.name()) == 0
+            && a._mFieldId == b._mFieldId;
+}
+
+struct C2TestStruct_A {
+    int32_t mSigned32;
+    int64_t mSigned64[2];
+    uint32_t mUnsigned32[1];
+    uint64_t mUnsigned64;
+    float mFloat;
+    C2SizeStruct mSize[3];
+    uint8_t mBlob[100];
+    char mString[100];
+    bool mYesNo[100];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = kParamIndexTest };
+    // typedef C2TestStruct_A _type;
+} __attribute__((packed));
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_A::fieldList =
+    { { FD::INT32,    1, "s32",   0, 4 },
+      { FD::INT64,    2, "s64",   4, 8 },
+      { FD::UINT32,   1, "u32",  20, 4 },
+      { FD::UINT64,   1, "u64",  24, 8 },
+      { FD::FLOAT,    1, "fp",   32, 4 },
+      { C2SizeStruct::TYPE, 3, "size", 36, 8 },
+      { FD::BLOB,   100, "blob", 60, 1 },
+      { FD::STRING, 100, "str", 160, 1 },
+      { FD::BLOB,   100, "y-n", 260, 1 } };
+
+TEST_P(C2ParamTest_ParamFieldList, VerifyStruct) {
+    std::vector<const C2FieldDescriptor> fields = GetParam(), expected = C2TestStruct_A::fieldList;
+
+    // verify first field descriptor
+    EXPECT_EQ(FD::INT32, fields[0].type());
+    EXPECT_STREQ("s32", fields[0].name());
+    EXPECT_EQ(1u, fields[0].length());
+    EXPECT_EQ(_C2FieldId(0, 4), fields[0]._mFieldId);
+
+    EXPECT_EQ(expected[0], fields[0]);
+    EXPECT_EQ(expected[1], fields[1]);
+    EXPECT_EQ(expected[2], fields[2]);
+    EXPECT_EQ(expected[3], fields[3]);
+    EXPECT_EQ(expected[4], fields[4]);
+    EXPECT_EQ(expected[5], fields[5]);
+    EXPECT_EQ(expected[6], fields[6]);
+    EXPECT_EQ(expected[7], fields[7]);
+    for (size_t i = 8; i < fields.size() && i < expected.size(); ++i) {
+        EXPECT_EQ(expected[i], fields[i]);
+    }
+}
+
+INSTANTIATE_TEST_CASE_P(InitializerList, C2ParamTest_ParamFieldList, ::testing::Values(C2TestStruct_A::fieldList));
+
+// define fields using C2FieldDescriptor pointer constructor
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_A_FD_PTR_fieldList =
+    { C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mSigned32,   "s32"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mSigned64,   "s64"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mUnsigned32, "u32"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mUnsigned64, "u64"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mFloat,      "fp"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mSize,       "size"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mBlob,       "blob"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mString,     "str"),
+    //  C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mYesNo,      "y-n")
+    };
+
+INSTANTIATE_TEST_CASE_P(PointerConstructor, C2ParamTest_ParamFieldList, ::testing::Values(C2TestStruct_A_FD_PTR_fieldList));
+
+// define fields using C2FieldDescriptor member-pointer constructor
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_A_FD_MEM_PTR_fieldList =
+    { C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mSigned32,   "s32"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mSigned64,   "s64"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mUnsigned32, "u32"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mUnsigned64, "u64"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mFloat,      "fp"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mSize,       "size"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mBlob,       "blob"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mString,     "str"),
+    //  C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mYesNo,      "y-n")
+    };
+
+INSTANTIATE_TEST_CASE_P(MemberPointerConstructor, C2ParamTest_ParamFieldList, ::testing::Values(C2TestStruct_A_FD_MEM_PTR_fieldList));
+
+// Test 2. define a structure with two-step helper methods
+
+struct C2TestAStruct {
+    int32_t mSigned32;
+    int64_t mSigned64[2];
+    uint32_t mUnsigned32[1];
+    uint64_t mUnsigned64;
+    float mFloat;
+    C2SizeStruct mSize[3];
+    uint8_t mBlob[100];
+    char mString[100];
+    bool mYesNo[100];
+
+private: // test access level
+    DEFINE_C2STRUCT(TestA)
+} C2_PACK;
+
+DESCRIBE_C2STRUCT(TestA, {
+    C2FIELD(mSigned32, "s32")
+    C2FIELD(mSigned64, "s64")
+    C2FIELD(mUnsigned32, "u32")
+    C2FIELD(mUnsigned64, "u64")
+    C2FIELD(mFloat, "fp")
+    C2FIELD(mSize, "size")
+    C2FIELD(mBlob, "blob")
+    C2FIELD(mString, "str")
+    // C2FIELD(mYesNo, "y-n")
+}) // ; optional
+
+INSTANTIATE_TEST_CASE_P(DescribeStruct2Step, C2ParamTest_ParamFieldList, ::testing::Values(C2TestAStruct::fieldList));
+
+// Test 3. define a structure with one-step helper method
+
+struct C2TestBStruct {
+    int32_t mSigned32;
+    int64_t mSigned64[2];
+    uint32_t mUnsigned32[1];
+    uint64_t mUnsigned64;
+    float mFloat;
+    C2SizeStruct mSize[3];
+    uint8_t mBlob[100];
+    char mString[100];
+    bool mYesNo[100];
+
+private: // test access level
+    DEFINE_AND_DESCRIBE_C2STRUCT(TestB)
+
+    C2FIELD(mSigned32, "s32")
+    C2FIELD(mSigned64, "s64")
+    C2FIELD(mUnsigned32, "u32")
+    C2FIELD(mUnsigned64, "u64")
+    C2FIELD(mFloat, "fp")
+    C2FIELD(mSize, "size")
+    C2FIELD(mBlob, "blob")
+    C2FIELD(mString, "str")
+    // C2FIELD(mYesNo, "y-n")
+};
+
+INSTANTIATE_TEST_CASE_P(DescribeStruct1Step, C2ParamTest_ParamFieldList, ::testing::Values(C2TestBStruct::fieldList));
+
+// Test 4. flexible members
+
+template<typename T>
+class C2ParamTest_FlexParamFieldList : public ::testing::Test {
+protected:
+    using Type=FD::Type;
+
+    // static std::initializer_list<std::initializer_list<const C2FieldDescriptor>>
+    static std::vector<std::vector<const C2FieldDescriptor>>
+            GetLists();
+
+    constexpr static Type flexType =
+            std::is_same<T, int32_t>::value ? FD::INT32 :
+            std::is_same<T, int64_t>::value ? FD::INT64 :
+            std::is_same<T, uint32_t>::value ? FD::UINT32 :
+            std::is_same<T, uint64_t>::value ? FD::UINT64 :
+            std::is_same<T, float>::value ? FD::FLOAT :
+            std::is_same<T, uint8_t>::value ? FD::BLOB :
+            std::is_same<T, char>::value ? FD::STRING :
+            std::is_same<T, C2SizeStruct>::value ? C2SizeStruct::TYPE : (Type)0;
+    constexpr static size_t flexSize = sizeof(T);
+};
+
+typedef ::testing::Types<int32_t, int64_t, C2SizeStruct> FlexTypes;
+TYPED_TEST_CASE(C2ParamTest_FlexParamFieldList, FlexTypes);
+
+TYPED_TEST(C2ParamTest_FlexParamFieldList, VerifyStruct) {
+    for (auto a : this->GetLists()) {
+        std::vector<const C2FieldDescriptor> fields = a;
+        if (fields.size() > 1) {
+            EXPECT_EQ(2u, fields.size());
+            EXPECT_EQ(C2FieldDescriptor(FD::INT32, 1, "s32", 0, 4), fields[0]);
+            EXPECT_EQ(C2FieldDescriptor(this->flexType, 0, "flex", 4, this->flexSize),
+                      fields[1]);
+        } else {
+            EXPECT_EQ(1u, fields.size());
+            EXPECT_EQ(C2FieldDescriptor(this->flexType, 0, "flex", 0, this->flexSize),
+                      fields[0]);
+        }
+    }
+}
+
+struct C2TestStruct_FlexS32 {
+    int32_t mFlex[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = kParamIndexTestFlex, flexSize = 4 };
+    // typedef C2TestStruct_FlexS32 _type;
+    // typedef int32_t flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexS32::fieldList = {
+    { FD::INT32, 0, "flex", 0, 4 }
+};
+
+struct C2TestStruct_FlexEndS32 {
+    int32_t mSigned32;
+    int32_t mFlex[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = kParamIndexTestFlexEnd, flexSize = 4 };
+    // typedef C2TestStruct_FlexEnd _type;
+    // typedef int32_t flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexEndS32::fieldList = {
+    { FD::INT32, 1, "s32", 0, 4 },
+    { FD::INT32, 0, "flex", 4, 4 },
+};
+
+const static std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexEndS32_ptr_fieldList = {
+    C2FieldDescriptor(&((C2TestStruct_FlexEndS32*)0)->mSigned32, "s32"),
+    C2FieldDescriptor(&((C2TestStruct_FlexEndS32*)0)->mFlex, "flex"),
+};
+
+struct C2TestFlexS32Struct {
+    int32_t mFlexSigned32[];
+private: // test access level
+    C2TestFlexS32Struct() {}
+
+    DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(TestFlexS32, mFlexSigned32)
+    C2FIELD(mFlexSigned32, "flex")
+};
+
+struct C2TestFlexEndS32Struct {
+    int32_t mSigned32;
+    int32_t mFlexSigned32[];
+private: // test access level
+    C2TestFlexEndS32Struct() {}
+
+    DEFINE_FLEX_C2STRUCT(TestFlexEndS32, mFlexSigned32)
+} C2_PACK;
+
+DESCRIBE_C2STRUCT(TestFlexEndS32, {
+    C2FIELD(mSigned32, "s32")
+    C2FIELD(mFlexSigned32, "flex")
+}) // ; optional
+
+template<>
+std::vector<std::vector<const C2FieldDescriptor>>
+//std::initializer_list<std::initializer_list<const C2FieldDescriptor>>
+C2ParamTest_FlexParamFieldList<int32_t>::GetLists() {
+    return {
+        C2TestStruct_FlexS32::fieldList,
+        C2TestStruct_FlexEndS32::fieldList,
+        C2TestStruct_FlexEndS32_ptr_fieldList,
+        C2TestFlexS32Struct::fieldList,
+        C2TestFlexEndS32Struct::fieldList,
+    };
+}
+
+struct C2TestStruct_FlexS64 {
+    int64_t mFlexSigned64[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = kParamIndexTestFlexS64, flexSize = 8 };
+    // typedef C2TestStruct_FlexS64 _type;
+    // typedef int64_t flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexS64::fieldList = {
+    { FD::INT64, 0, "flex", 0, 8 }
+};
+
+struct C2TestStruct_FlexEndS64 {
+    int32_t mSigned32;
+    int64_t mSigned64Flex[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = C2TestStruct_FlexEndS64, flexSize = 8 };
+    // typedef C2TestStruct_FlexEndS64 _type;
+    // typedef int64_t flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexEndS64::fieldList = {
+    { FD::INT32, 1, "s32", 0, 4 },
+    { FD::INT64, 0, "flex", 4, 8 },
+};
+
+struct C2TestFlexS64Struct {
+    int64_t mFlexSigned64[];
+    C2TestFlexS64Struct() {}
+
+    DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(TestFlexS64, mFlexSigned64)
+    C2FIELD(mFlexSigned64, "flex")
+};
+
+struct C2TestFlexEndS64Struct {
+    int32_t mSigned32;
+    int64_t mFlexSigned64[];
+    C2TestFlexEndS64Struct() {}
+
+    DEFINE_FLEX_C2STRUCT(TestFlexEndS64, mFlexSigned64)
+} C2_PACK;
+
+DESCRIBE_C2STRUCT(TestFlexEndS64, {
+    C2FIELD(mSigned32, "s32")
+    C2FIELD(mFlexSigned64, "flex")
+}) // ; optional
+
+template<>
+std::vector<std::vector<const C2FieldDescriptor>>
+//std::initializer_list<std::initializer_list<const C2FieldDescriptor>>
+C2ParamTest_FlexParamFieldList<int64_t>::GetLists() {
+    return {
+        C2TestStruct_FlexS64::fieldList,
+        C2TestStruct_FlexEndS64::fieldList,
+        C2TestFlexS64Struct::fieldList,
+        C2TestFlexEndS64Struct::fieldList,
+    };
+}
+
+struct C2TestStruct_FlexSize {
+    C2SizeStruct mFlexSize[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = kParamIndexTestFlexSize, flexSize = 8 };
+    // typedef C2TestStruct_FlexSize _type;
+    // typedef C2SizeStruct flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexSize::fieldList = {
+    { C2SizeStruct::TYPE, 0, "flex", 0, sizeof(C2SizeStruct) }
+};
+
+struct C2TestStruct_FlexEndSize {
+    int32_t mSigned32;
+    C2SizeStruct mSizeFlex[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = C2TestStruct_FlexEndSize, flexSize = 8 };
+    // typedef C2TestStruct_FlexEndSize _type;
+    // typedef C2SizeStruct flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexEndSize::fieldList = {
+    { FD::INT32, 1, "s32", 0, 4 },
+    { C2SizeStruct::TYPE, 0, "flex", 4, sizeof(C2SizeStruct) },
+};
+
+struct C2TestFlexSizeStruct {
+    C2SizeStruct mFlexSize[];
+    C2TestFlexSizeStruct() {}
+
+    DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(TestFlexSize, mFlexSize)
+    C2FIELD(mFlexSize, "flex")
+};
+
+struct C2TestFlexEndSizeStruct {
+    int32_t mSigned32;
+    C2SizeStruct mFlexSize[];
+    C2TestFlexEndSizeStruct() {}
+
+    DEFINE_FLEX_C2STRUCT(TestFlexEndSize, mFlexSize)
+} C2_PACK;
+
+DESCRIBE_C2STRUCT(TestFlexEndSize, {
+    C2FIELD(mSigned32, "s32")
+    C2FIELD(mFlexSize, "flex")
+}) // ; optional
+
+template<>
+std::vector<std::vector<const C2FieldDescriptor>>
+//std::initializer_list<std::initializer_list<const C2FieldDescriptor>>
+C2ParamTest_FlexParamFieldList<C2SizeStruct>::GetLists() {
+    return {
+        C2TestStruct_FlexSize::fieldList,
+        C2TestStruct_FlexEndSize::fieldList,
+        C2TestFlexSizeStruct::fieldList,
+        C2TestFlexEndSizeStruct::fieldList,
+    };
+}
+
+TEST_F(C2ParamTest, FieldId) {
+    // pointer constructor
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId(&((C2TestStruct_A*)0)->mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId(&((C2TestStruct_A*)0)->mSigned64));
+    EXPECT_EQ(_C2FieldId(20, 4), _C2FieldId(&((C2TestStruct_A*)0)->mUnsigned32));
+    EXPECT_EQ(_C2FieldId(24, 8), _C2FieldId(&((C2TestStruct_A*)0)->mUnsigned64));
+    EXPECT_EQ(_C2FieldId(32, 4), _C2FieldId(&((C2TestStruct_A*)0)->mFloat));
+    EXPECT_EQ(_C2FieldId(36, 8), _C2FieldId(&((C2TestStruct_A*)0)->mSize));
+    EXPECT_EQ(_C2FieldId(60, 1), _C2FieldId(&((C2TestStruct_A*)0)->mBlob));
+    EXPECT_EQ(_C2FieldId(160, 1), _C2FieldId(&((C2TestStruct_A*)0)->mString));
+    EXPECT_EQ(_C2FieldId(260, 1), _C2FieldId(&((C2TestStruct_A*)0)->mYesNo));
+
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId(&((C2TestFlexEndSizeStruct*)0)->mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId(&((C2TestFlexEndSizeStruct*)0)->mFlexSize));
+
+    // member pointer constructor
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mSigned64));
+    EXPECT_EQ(_C2FieldId(20, 4), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mUnsigned32));
+    EXPECT_EQ(_C2FieldId(24, 8), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mUnsigned64));
+    EXPECT_EQ(_C2FieldId(32, 4), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mFloat));
+    EXPECT_EQ(_C2FieldId(36, 8), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mSize));
+    EXPECT_EQ(_C2FieldId(60, 1), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mBlob));
+    EXPECT_EQ(_C2FieldId(160, 1), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mString));
+    EXPECT_EQ(_C2FieldId(260, 1), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mYesNo));
+
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId((C2TestFlexEndSizeStruct*)0, &C2TestFlexEndSizeStruct::mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId((C2TestFlexEndSizeStruct*)0, &C2TestFlexEndSizeStruct::mFlexSize));
+
+    // member pointer sans type pointer
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId(&C2TestStruct_A::mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId(&C2TestStruct_A::mSigned64));
+    EXPECT_EQ(_C2FieldId(20, 4), _C2FieldId(&C2TestStruct_A::mUnsigned32));
+    EXPECT_EQ(_C2FieldId(24, 8), _C2FieldId(&C2TestStruct_A::mUnsigned64));
+    EXPECT_EQ(_C2FieldId(32, 4), _C2FieldId(&C2TestStruct_A::mFloat));
+    EXPECT_EQ(_C2FieldId(36, 8), _C2FieldId(&C2TestStruct_A::mSize));
+    EXPECT_EQ(_C2FieldId(60, 1), _C2FieldId(&C2TestStruct_A::mBlob));
+    EXPECT_EQ(_C2FieldId(160, 1), _C2FieldId(&C2TestStruct_A::mString));
+    EXPECT_EQ(_C2FieldId(260, 1), _C2FieldId(&C2TestStruct_A::mYesNo));
+
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId(&C2TestFlexEndSizeStruct::mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId(&C2TestFlexEndSizeStruct::mFlexSize));
+
+    typedef C2GlobalParam<C2Info, C2TestAStruct> C2TestAInfo;
+    typedef C2GlobalParam<C2Info, C2TestFlexEndSizeStruct> C2TestFlexEndSizeInfo;
+
+    // pointer constructor in C2Param
+    EXPECT_EQ(_C2FieldId(8, 4), _C2FieldId(&((C2TestAInfo*)0)->mSigned32));
+    EXPECT_EQ(_C2FieldId(12, 8), _C2FieldId(&((C2TestAInfo*)0)->mSigned64));
+    EXPECT_EQ(_C2FieldId(28, 4), _C2FieldId(&((C2TestAInfo*)0)->mUnsigned32));
+    EXPECT_EQ(_C2FieldId(32, 8), _C2FieldId(&((C2TestAInfo*)0)->mUnsigned64));
+    EXPECT_EQ(_C2FieldId(40, 4), _C2FieldId(&((C2TestAInfo*)0)->mFloat));
+    EXPECT_EQ(_C2FieldId(44, 8), _C2FieldId(&((C2TestAInfo*)0)->mSize));
+    EXPECT_EQ(_C2FieldId(68, 1), _C2FieldId(&((C2TestAInfo*)0)->mBlob));
+    EXPECT_EQ(_C2FieldId(168, 1), _C2FieldId(&((C2TestAInfo*)0)->mString));
+    EXPECT_EQ(_C2FieldId(268, 1), _C2FieldId(&((C2TestAInfo*)0)->mYesNo));
+
+    EXPECT_EQ(_C2FieldId(8, 4), _C2FieldId(&((C2TestFlexEndSizeInfo*)0)->m.mSigned32));
+    EXPECT_EQ(_C2FieldId(12, 8), _C2FieldId(&((C2TestFlexEndSizeInfo*)0)->m.mFlexSize));
+
+    // member pointer in C2Param
+    EXPECT_EQ(_C2FieldId(8, 4), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mSigned32));
+    EXPECT_EQ(_C2FieldId(12, 8), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mSigned64));
+    EXPECT_EQ(_C2FieldId(28, 4), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mUnsigned32));
+    EXPECT_EQ(_C2FieldId(32, 8), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mUnsigned64));
+    EXPECT_EQ(_C2FieldId(40, 4), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mFloat));
+    EXPECT_EQ(_C2FieldId(44, 8), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mSize));
+    EXPECT_EQ(_C2FieldId(68, 1), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mBlob));
+    EXPECT_EQ(_C2FieldId(168, 1), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mString));
+    EXPECT_EQ(_C2FieldId(268, 1), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mYesNo));
+
+    // NOTE: cannot use a member pointer for flex params due to introduction of 'm'
+    // EXPECT_EQ(_C2FieldId(8, 4), _C2FieldId(&C2TestFlexEndSizeInfo::m.mSigned32));
+    // EXPECT_EQ(_C2FieldId(12, 8), _C2FieldId(&C2TestFlexEndSizeInfo::m.mFlexSize));
+
+
+
+}
+
+struct S32 {
+    template<typename T, class B=typename std::remove_extent<T>::type>
+    inline S32(const T*) {
+        static_assert(!std::is_array<T>::value, "should not be an array");
+        static_assert(std::is_same<B, int32_t>::value, "should be int32_t");
+    }
+};
+
+struct FLX {
+    template<typename U, typename T, class B=typename std::remove_extent<T>::type>
+    inline FLX(const T*, const U*) {
+        static_assert(std::is_array<T>::value, "should be an array");
+        static_assert(std::extent<T>::value == 0, "should be an array of 0 extent");
+        static_assert(std::is_same<B, U>::value, "should be type U");
+    }
+};
+
+struct MP {
+    template<typename U, typename T, typename ExpectedU, typename UnexpectedU>
+    inline MP(T U::*, const ExpectedU*, const UnexpectedU*) {
+        static_assert(!std::is_same<U, UnexpectedU>::value, "should not be member pointer of the base type");
+        static_assert(std::is_same<U, ExpectedU>::value, "should be member pointer of the derived type");
+    }
+
+    template<typename U, typename T, typename B, typename D>
+    inline MP(T D::*, const D*) { }
+};
+
+void compiledStatic_arrayTypePropagationTest() {
+    (void)S32(&((C2TestFlexEndS32Struct *)0)->mSigned32);
+    (void)FLX(&((C2TestFlexEndS32Struct *)0)->mFlexSigned32, (int32_t*)0);
+    (void)FLX(&((C2TestFlexS32Struct *)0)->mFlexSigned32, (int32_t*)0);
+
+    typedef C2GlobalParam<C2Info, C2TestAStruct> C2TestAInfo;
+
+    // TRICKY: &derivedClass::baseMember has type of baseClass::*
+    static_assert(std::is_same<decltype(&C2TestAInfo::mSigned32), int32_t C2TestAStruct::*>::value,
+                  "base member pointer should have base class in type");
+
+    // therefore, member pointer expands to baseClass::* in templates
+    (void)MP(&C2TestAInfo::mSigned32,
+             (C2TestAStruct*)0 /* expected */, (C2TestAInfo*)0 /* unexpected */);
+    // but can be cast to derivedClass::*
+    (void)MP((int32_t C2TestAInfo::*)&C2TestAInfo::mSigned32,
+             (C2TestAInfo*)0 /* expected */, (C2TestAStruct*)0 /* unexpected */);
+
+    // TRICKY: baseClass::* does not autoconvert to derivedClass::* even in templates
+    // (void)MP(&C2TestAInfo::mSigned32, (C2TestAInfo*)0);
+}
+
+TEST_F(C2ParamTest, MemberPointerCast) {
+    typedef C2GlobalParam<C2Info, C2TestAStruct> C2TestAInfo;
+
+    static_assert(offsetof(C2TestAInfo, mSigned32) == 8, "offset should be 8");
+    constexpr int32_t C2TestAStruct::* s32ptr = &C2TestAInfo::mSigned32;
+    constexpr int32_t C2TestAInfo::* s32ptr_derived = (int32_t C2TestAStruct::*)&C2TestAInfo::mSigned32;
+    constexpr int32_t C2TestAInfo::* s32ptr_cast2derived = (int32_t C2TestAInfo::*)s32ptr;
+    C2TestAInfo *info = (C2TestAInfo *)256;
+    C2TestAStruct *strukt = (C2TestAStruct *)info;
+    int32_t *info_s32_derived = &(info->*s32ptr_derived);
+    int32_t *info_s32_cast2derived = &(info->*s32ptr_cast2derived);
+    int32_t *info_s32 = &(info->*s32ptr);
+    int32_t *strukt_s32 = &(strukt->*s32ptr);
+
+    EXPECT_EQ(256u, (uintptr_t)info);
+    EXPECT_EQ(264u, (uintptr_t)strukt);
+    EXPECT_EQ(264u, (uintptr_t)info_s32_derived);
+    EXPECT_EQ(264u, (uintptr_t)info_s32_cast2derived);
+    EXPECT_EQ(264u, (uintptr_t)info_s32);
+    EXPECT_EQ(264u, (uintptr_t)strukt_s32);
+
+    typedef C2GlobalParam<C2Info, C2TestFlexEndSizeStruct> C2TestFlexEndSizeInfo;
+    static_assert(offsetof(C2TestFlexEndSizeInfo, m.mSigned32) == 8, "offset should be 8");
+    static_assert(offsetof(C2TestFlexEndSizeInfo, m.mFlexSize) == 12, "offset should be 12");
+}
+
+/* ===================================== PARAM USAGE TESTS ===================================== */
+
+struct C2NumberStruct {
+    int32_t mNumber;
+    C2NumberStruct() {}
+    C2NumberStruct(int32_t _number) : mNumber(_number) {}
+
+    DEFINE_AND_DESCRIBE_C2STRUCT(Number)
+    C2FIELD(mNumber, "number")
+};
+
+struct C2NumbersStruct {
+    int32_t mNumbers[];
+    C2NumbersStruct() {}
+
+    DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(Numbers, mNumbers)
+    C2FIELD(mNumbers, "numbers")
+};
+static_assert(sizeof(C2NumbersStruct) == 0, "C2NumbersStruct has incorrect size");
+
+typedef C2GlobalParam<C2Tuning, C2NumberStruct> C2NumberTuning;
+typedef   C2PortParam<C2Tuning, C2NumberStruct> C2NumberPortTuning;
+typedef C2StreamParam<C2Tuning, C2NumberStruct> C2NumberStreamTuning;
+
+typedef C2GlobalParam<C2Tuning, C2NumbersStruct> C2NumbersTuning;
+typedef   C2PortParam<C2Tuning, C2NumbersStruct> C2NumbersPortTuning;
+typedef C2StreamParam<C2Tuning, C2NumbersStruct> C2NumbersStreamTuning;
+
+//
+#if 0
+
+void test() {
+    C2NumberStruct s(10);
+    (void)C2NumberStruct::fieldList;
+};
+
+typedef C2StreamParam<C2Tuning, C2Int64Value, kParamIndexNumberB> C2NumberConfig4;
+typedef C2PortParam<C2Tuning, C2Int32Value, kParamIndexNumber> C2NumberConfig3;
+typedef C2GlobalParam<C2Tuning, C2StringValue, kParamIndexNumber> C2VideoNameConfig;
+
+void test3() {
+    C2NumberConfig3 s(10);
+    s.mValue = 11;
+    s = 12;
+    (void)C2NumberConfig3::fieldList;
+    std::shared_ptr<C2VideoNameConfig> n = C2VideoNameConfig::alloc_shared(25);
+    strcpy(n->m.mValue, "lajos");
+    C2NumberConfig4 t(false, 0, 11);
+    t.mValue = 15;
+};
+
+struct C2NumbersStruct {
+    int32_t mNumbers[];
+    enum { baseIndex = kParamIndexNumber };
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    C2NumbersStruct() {}
+
+    FLEX(C2NumbersStruct, mNumbers);
+};
+
+static_assert(sizeof(C2NumbersStruct) == 0, "yes");
+
+
+typedef C2GlobalParam<C2Info, C2NumbersStruct> C2NumbersInfo;
+
+const std::initializer_list<const C2FieldDescriptor> C2NumbersStruct::fieldList =
+//    { { FD::INT32, 0, "widths" } };
+    { C2FieldDescriptor(&((C2NumbersStruct*)(nullptr))->mNumbers, "number") };
+
+typedef C2PortParam<C2Tuning, C2NumberStruct> C2NumberConfig;
+
+std::list<const C2FieldDescriptor> myList = C2NumberConfig::fieldList;
+
+    std::unique_ptr<android::C2ParamDescriptor> __test_describe(uint32_t paramType) {
+        std::list<const C2FieldDescriptor> fields = describeC2Params<C2NumberConfig>();
+
+        auto widths = C2NumbersInfo::alloc_shared(5);
+        widths->flexCount();
+        widths->m.mNumbers[4] = 1;
+
+        test();
+        test3();
+
+        C2NumberConfig outputWidth(false, 123);
+
+        C2Param::Index index(paramType);
+        switch (paramType) {
+        case C2NumberConfig::baseIndex:
+            return std::unique_ptr<C2ParamDescriptor>(new C2ParamDescriptor{
+                true /* isRequired */,
+                "number",
+                index,
+            });
+        }
+        return nullptr;
+    }
+
+
+} // namespace android
+
+#endif
+//
+
+template<typename T>
+bool canSetPort(T &o, bool output) { return o.setPort(output); }
+bool canSetPort(...) { return false; }
+
+template<typename S, typename=decltype(((S*)0)->setPort(true))>
+static std::true_type _canCallSetPort(int);
+template<typename>
+static std::false_type _canCallSetPort(...);
+#define canCallSetPort(x) decltype(_canCallSetPort<std::remove_reference<decltype(x)>::type>(0))::value
+
+/* ======================================= STATIC TESTS ======================================= */
+
+static_assert(_C2Comparable<int>::value, "int is not comparable");
+static_assert(!_C2Comparable<void>::value, "void is comparable");
+
+struct C2_HIDE _test0 {
+    bool operator==(const _test0&);
+    bool operator!=(const _test0&);
+};
+struct C2_HIDE _test1 {
+    bool operator==(const _test1&);
+};
+struct C2_HIDE _test2 {
+    bool operator!=(const _test2&);
+};
+static_assert(_C2Comparable<_test0>::value, "class with == and != is not comparable");
+static_assert(_C2Comparable<_test1>::value, "class with == is not comparable");
+static_assert(_C2Comparable<_test2>::value, "class with != is not comparable");
+
+/* ======================================= C2PARAM TESTS ======================================= */
+
+struct _C2ParamInspector {
+    static void StaticTest();
+    static void StaticFlexTest();
+};
+
+// TEST_F(_C2ParamInspector, StaticTest) {
+void _C2ParamInspector::StaticTest() {
+    typedef C2Param::Index I;
+
+    // C2NumberStruct: baseIndex = kIndex                          (args)
+    static_assert(C2NumberStruct::baseIndex == kParamIndexNumber, "bad index");
+    static_assert(sizeof(C2NumberStruct) == 4, "bad size");
+
+    // C2NumberTuning:             kIndex | tun | global           (args)
+    static_assert(C2NumberTuning::baseIndex == kParamIndexNumber, "bad index");
+    static_assert(C2NumberTuning::typeIndex == (kParamIndexNumber | I::kTypeTuning | I::kDirGlobal), "bad index");
+    static_assert(sizeof(C2NumberTuning) == 12, "bad size");
+
+    static_assert(offsetof(C2NumberTuning, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumberTuning, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumberTuning, mNumber) == 8, "bad offset");
+
+    // C2NumberPortTuning:         kIndex | tun | port             (bool, args)
+    static_assert(sizeof(C2NumberPortTuning) == 12, "bad size");
+    // C2NumberPortTuning::input:  kIndex | tun | port | input     (args)
+    // C2NumberPortTuning::output: kIndex | tun | port | output    (args)
+    static_assert(C2NumberPortTuning::input::baseIndex ==
+                  kParamIndexNumber, "bad index");
+    static_assert(C2NumberPortTuning::input::typeIndex ==
+                  (kParamIndexNumber | I::kTypeTuning | I::kDirInput), "bad index");
+    static_assert(C2NumberPortTuning::output::baseIndex ==
+                  kParamIndexNumber, "bad index");
+    static_assert(C2NumberPortTuning::output::typeIndex ==
+                  (kParamIndexNumber | I::kTypeTuning | I::kDirOutput), "bad index");
+    static_assert(sizeof(C2NumberPortTuning::input) == 12, "bad size");
+    static_assert(sizeof(C2NumberPortTuning::output) == 12, "bad size");
+    static_assert(offsetof(C2NumberPortTuning::input, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumberPortTuning::input, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumberPortTuning::input, mNumber) == 8, "bad offset");
+    static_assert(offsetof(C2NumberPortTuning::output, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumberPortTuning::output, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumberPortTuning::output, mNumber) == 8, "bad offset");
+
+    // C2NumberStreamTuning:       kIndex | tun | str              (bool, uint, args)
+    static_assert(sizeof(C2NumberStreamTuning) == 12u, "bad size");
+    // C2NumberStreamTuning::input kIndex | tun | str | input      (int, args)
+    // C2NumberStreamTuning::output kIx   | tun | str | output     (int, args)
+    static_assert(C2NumberStreamTuning::input::baseIndex ==
+                  kParamIndexNumber, "bad index");
+    static_assert(C2NumberStreamTuning::input::typeIndex ==
+                  (kParamIndexNumber | I::kTypeTuning | I::kDirInput | I::kStreamFlag), "bad index");
+    static_assert(C2NumberStreamTuning::output::baseIndex ==
+                  kParamIndexNumber, "bad index");
+    static_assert(C2NumberStreamTuning::output::typeIndex ==
+                  (kParamIndexNumber | I::kTypeTuning | I::kDirOutput | I::kStreamFlag), "bad index");
+    static_assert(sizeof(C2NumberStreamTuning::input) == 12u, "bad size");
+    static_assert(sizeof(C2NumberStreamTuning::output) == 12u, "bad size");
+    static_assert(offsetof(C2NumberStreamTuning::input, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumberStreamTuning::input, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumberStreamTuning::input, mNumber) == 8, "bad offset");
+    static_assert(offsetof(C2NumberStreamTuning::output, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumberStreamTuning::output, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumberStreamTuning::output, mNumber) == 8, "bad offset");
+}
+
+void _C2ParamInspector::StaticFlexTest() {
+    typedef C2Param::Index I;
+
+    // C2NumbersStruct: baseIndex = kIndex                          (args)
+    static_assert(C2NumbersStruct::baseIndex == (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(sizeof(C2NumbersStruct) == 0, "bad size");
+
+    // C2NumbersTuning:             kIndex | tun | global           (args)
+    static_assert(C2NumbersTuning::baseIndex == (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(C2NumbersTuning::typeIndex == (I::kFlexibleFlag | kParamIndexNumbers | I::kTypeTuning | I::kDirGlobal), "bad index");
+    static_assert(sizeof(C2NumbersTuning) == 8, "bad size");
+
+    static_assert(offsetof(C2NumbersTuning, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumbersTuning, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumbersTuning, m.mNumbers) == 8, "bad offset");
+
+    // C2NumbersPortTuning:         kIndex | tun | port             (bool, args)
+    static_assert(sizeof(C2NumbersPortTuning) == 8, "bad size");
+    // C2NumbersPortTuning::input:  kIndex | tun | port | input     (args)
+    // C2NumbersPortTuning::output: kIndex | tun | port | output    (args)
+    static_assert(C2NumbersPortTuning::input::baseIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(C2NumbersPortTuning::input::typeIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers | I::kTypeTuning | I::kDirInput), "bad index");
+    static_assert(C2NumbersPortTuning::output::baseIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(C2NumbersPortTuning::output::typeIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers | I::kTypeTuning | I::kDirOutput), "bad index");
+    static_assert(sizeof(C2NumbersPortTuning::input) == 8, "bad size");
+    static_assert(sizeof(C2NumbersPortTuning::output) == 8, "bad size");
+    static_assert(offsetof(C2NumbersPortTuning::input, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumbersPortTuning::input, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumbersPortTuning::input, m.mNumbers) == 8, "bad offset");
+    static_assert(offsetof(C2NumbersPortTuning::output, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumbersPortTuning::output, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumbersPortTuning::output, m.mNumbers) == 8, "bad offset");
+
+    // C2NumbersStreamTuning:       kIndex | tun | str              (bool, uint, args)
+    static_assert(sizeof(C2NumbersStreamTuning) == 8, "bad size");
+    // C2NumbersStreamTuning::input kIndex | tun | str | input      (int, args)
+    // C2NumbersStreamTuning::output kIx   | tun | str | output     (int, args)
+    static_assert(C2NumbersStreamTuning::input::baseIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(C2NumbersStreamTuning::input::typeIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers | I::kTypeTuning | I::kDirInput | I::kStreamFlag), "bad index");
+    static_assert(C2NumbersStreamTuning::output::baseIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(C2NumbersStreamTuning::output::typeIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers | I::kTypeTuning | I::kDirOutput | I::kStreamFlag), "bad index");
+    static_assert(sizeof(C2NumbersStreamTuning::input) == 8, "bad size");
+    static_assert(sizeof(C2NumbersStreamTuning::output) == 8, "bad size");
+    static_assert(offsetof(C2NumbersStreamTuning::input, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumbersStreamTuning::input, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumbersStreamTuning::input, m.mNumbers) == 8, "bad offset");
+    static_assert(offsetof(C2NumbersStreamTuning::output, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumbersStreamTuning::output, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumbersStreamTuning::output, m.mNumbers) == 8, "bad offset");
+}
+
+TEST_F(C2ParamTest, ParamOpsTest) {
+    const C2NumberStruct str(100);
+    C2NumberStruct bstr;
+
+    {
+        EXPECT_EQ(100, str.mNumber);
+        bstr.mNumber = 100;
+
+        C2Param::BaseIndex index = C2NumberStruct::baseIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+    }
+
+    const C2NumberTuning tun(100);
+    C2NumberTuning btun;
+
+    {
+        // flags & invariables
+        for (const auto &p : { tun, btun }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+            EXPECT_EQ(12u, p.size());
+
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_TRUE(p.isGlobal());
+            EXPECT_FALSE(p.forInput());
+            EXPECT_FALSE(p.forOutput());
+            EXPECT_FALSE(p.forStream());
+            EXPECT_FALSE(p.forPort());
+        }
+
+        // value
+        EXPECT_EQ(100, tun.mNumber);
+        EXPECT_EQ(0, btun.mNumber);
+        EXPECT_FALSE(tun == btun);
+        EXPECT_FALSE(tun.operator==(btun));
+        EXPECT_TRUE(tun != btun);
+        EXPECT_TRUE(tun.operator!=(btun));
+        btun.mNumber = 100;
+        EXPECT_EQ(tun, btun);
+
+        // index
+        EXPECT_EQ(C2Param::Type(tun.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(tun.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(tun.type(), C2NumberTuning::typeIndex);
+        EXPECT_EQ(tun.stream(), ~0u);
+
+        C2Param::BaseIndex index = C2NumberTuning::baseIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+
+        C2Param::Type type = C2NumberTuning::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_FALSE(type.isFlexible());
+        EXPECT_TRUE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        EXPECT_EQ(C2NumberTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&tun), &tun);
+        EXPECT_EQ(C2NumberPortTuning::From(&tun), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&tun), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&tun), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::From(&tun), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&tun), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&tun), nullptr);
+    }
+
+    const C2NumberPortTuning outp1(true, 100), inp1(false, 100);
+    C2NumberPortTuning boutp1, binp1, binp3(false, 100);
+    const C2NumberPortTuning::input inp2(100);
+    C2NumberPortTuning::input binp2;
+    const C2NumberPortTuning::output outp2(100);
+    C2NumberPortTuning::output boutp2;
+
+    {
+        static_assert(canCallSetPort(binp3), "should be able to");
+        static_assert(canCallSetPort(binp1), "should be able to");
+        static_assert(!canCallSetPort(inp1), "should not be able to (const)");
+        static_assert(!canCallSetPort(inp2), "should not be able to (const & type)");
+        static_assert(!canCallSetPort(binp2), "should not be able to (type)");
+
+        // flags & invariables
+        for (const auto &p : { outp1, inp1, boutp1 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_FALSE(p.forStream());
+            EXPECT_TRUE(p.forPort());
+        }
+        for (const auto &p : { inp2, binp2 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_FALSE(p.forStream());
+            EXPECT_TRUE(p.forPort());
+        }
+        for (const auto &p : { outp2, boutp2 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_FALSE(p.forStream());
+            EXPECT_TRUE(p.forPort());
+        }
+
+        // port specific flags & invariables
+        EXPECT_FALSE(outp1.forInput());
+        EXPECT_TRUE(outp1.forOutput());
+
+        EXPECT_TRUE(inp1.forInput());
+        EXPECT_FALSE(inp1.forOutput());
+
+        for (const auto &p : { outp1, inp1 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+            EXPECT_EQ(100, p.mNumber);
+        }
+        for (const auto &p : { outp2, boutp2 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+
+            EXPECT_FALSE(p.forInput());
+            EXPECT_TRUE(p.forOutput());
+        }
+        for (const auto &p : { inp2, binp2 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+
+            EXPECT_TRUE(p.forInput());
+            EXPECT_FALSE(p.forOutput());
+        }
+        for (const auto &p : { boutp1 } ) {
+            EXPECT_FALSE((bool)p);
+            EXPECT_TRUE(!p);
+
+            EXPECT_FALSE(p.forInput());
+            EXPECT_FALSE(p.forOutput());
+            EXPECT_EQ(0, p.mNumber);
+        }
+
+        // values
+        EXPECT_EQ(100, inp2.mNumber);
+        EXPECT_EQ(100, outp2.mNumber);
+        EXPECT_EQ(0, binp1.mNumber);
+        EXPECT_EQ(0, binp2.mNumber);
+        EXPECT_EQ(0, boutp1.mNumber);
+        EXPECT_EQ(0, boutp2.mNumber);
+
+        EXPECT_TRUE(inp1 != outp1);
+        EXPECT_TRUE(inp1 == inp2);
+        EXPECT_TRUE(outp1 == outp2);
+        EXPECT_TRUE(binp1 == boutp1);
+        EXPECT_TRUE(binp2 != boutp2);
+
+        EXPECT_TRUE(inp1 != binp1);
+        binp1.mNumber = 100;
+        EXPECT_TRUE(inp1 != binp1);
+        binp1.setPort(false /* output */);
+        EXPECT_TRUE((bool)binp1);
+        EXPECT_FALSE(!binp1);
+        EXPECT_TRUE(inp1 == binp1);
+
+        EXPECT_TRUE(inp2 != binp2);
+        binp2.mNumber = 100;
+        EXPECT_TRUE(inp2 == binp2);
+
+        binp1.setPort(true /* output */);
+        EXPECT_TRUE(outp1 == binp1);
+
+        EXPECT_TRUE(outp1 != boutp1);
+        boutp1.mNumber = 100;
+        EXPECT_TRUE(outp1 != boutp1);
+        boutp1.setPort(true /* output */);
+        EXPECT_TRUE((bool)boutp1);
+        EXPECT_FALSE(!boutp1);
+        EXPECT_TRUE(outp1 == boutp1);
+
+        EXPECT_TRUE(outp2 != boutp2);
+        boutp2.mNumber = 100;
+        EXPECT_TRUE(outp2 == boutp2);
+
+        boutp1.setPort(false /* output */);
+        EXPECT_TRUE(inp1 == boutp1);
+
+        // index
+        EXPECT_EQ(C2Param::Type(inp1.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(inp1.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(inp1.type(), C2NumberPortTuning::input::typeIndex);
+        EXPECT_EQ(inp1.stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(inp2.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(inp2.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(inp2.type(), C2NumberPortTuning::input::typeIndex);
+        EXPECT_EQ(inp2.stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(outp1.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outp1.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(outp1.type(), C2NumberPortTuning::output::typeIndex);
+        EXPECT_EQ(outp1.stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(outp2.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outp2.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(outp2.type(), C2NumberPortTuning::output::typeIndex);
+        EXPECT_EQ(outp2.stream(), ~0u);
+
+        C2Param::BaseIndex index = C2NumberPortTuning::input::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+
+        index = C2NumberPortTuning::output::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+
+        C2Param::Type type = C2NumberPortTuning::input::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_FALSE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_TRUE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_TRUE(type.forPort());
+
+        type = C2NumberPortTuning::output::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_FALSE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_TRUE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_TRUE(type.forPort());
+
+        EXPECT_EQ(C2NumberPortTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&inp1), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&inp2), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&outp1), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&outp2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::From(&inp1), &inp1);
+        EXPECT_EQ(C2NumberPortTuning::From(&inp2), (C2NumberPortTuning*)&inp2);
+        EXPECT_EQ(C2NumberPortTuning::From(&outp1), &outp1);
+        EXPECT_EQ(C2NumberPortTuning::From(&outp2), (C2NumberPortTuning*)&outp2);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&inp1), (C2NumberPortTuning::input*)&inp1);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&inp2), &inp2);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&outp1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&outp2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&inp1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&inp2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&outp1), (C2NumberPortTuning::output*)&outp1);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&outp2), &outp2);
+        EXPECT_EQ(C2NumberStreamTuning::From(&inp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::From(&inp2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::From(&outp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::From(&outp2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&inp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&inp2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&outp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&outp2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&inp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&inp2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&outp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&outp2), nullptr);
+    }
+
+    const C2NumberStreamTuning outs1(true, 1u, 100), ins1(false, 1u, 100);
+    C2NumberStreamTuning bouts1, bins1, bins3(false, 1u, 100);
+    const C2NumberStreamTuning::input ins2(1u, 100);
+    C2NumberStreamTuning::input bins2;
+    const C2NumberStreamTuning::output outs2(1u, 100);
+    C2NumberStreamTuning::output bouts2;
+
+    {
+        static_assert(canCallSetPort(bins3), "should be able to");
+        static_assert(canCallSetPort(bins1), "should be able to");
+        static_assert(!canCallSetPort(ins1), "should not be able to (const)");
+        static_assert(!canCallSetPort(ins2), "should not be able to (const & type)");
+        static_assert(!canCallSetPort(bins2), "should not be able to (type)");
+
+        // flags & invariables
+        for (const auto &p : { outs1, ins1, bouts1 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_TRUE(p.forStream());
+            EXPECT_FALSE(p.forPort());
+        }
+        for (const auto &p : { ins2, bins2 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_TRUE(p.forStream());
+            EXPECT_FALSE(p.forPort());
+        }
+        for (const auto &p : { outs2, bouts2 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_TRUE(p.forStream());
+            EXPECT_FALSE(p.forPort());
+        }
+
+        // port specific flags & invariables
+        EXPECT_FALSE(outs1.forInput());
+        EXPECT_TRUE(outs1.forOutput());
+
+        EXPECT_TRUE(ins1.forInput());
+        EXPECT_FALSE(ins1.forOutput());
+
+        for (const auto &p : { outs1, ins1 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+            EXPECT_EQ(100, p.mNumber);
+            EXPECT_EQ(1u, p.stream());
+        }
+        for (const auto &p : { outs2, bouts2 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+
+            EXPECT_FALSE(p.forInput());
+            EXPECT_TRUE(p.forOutput());
+        }
+        for (const auto &p : { ins2, bins2 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+
+            EXPECT_TRUE(p.forInput());
+            EXPECT_FALSE(p.forOutput());
+        }
+        for (const auto &p : { bouts1 } ) {
+            EXPECT_FALSE((bool)p);
+            EXPECT_TRUE(!p);
+
+            EXPECT_FALSE(p.forInput());
+            EXPECT_FALSE(p.forOutput());
+            EXPECT_EQ(0, p.mNumber);
+        }
+
+        // values
+        EXPECT_EQ(100, ins2.mNumber);
+        EXPECT_EQ(100, outs2.mNumber);
+        EXPECT_EQ(0, bins1.mNumber);
+        EXPECT_EQ(0, bins2.mNumber);
+        EXPECT_EQ(0, bouts1.mNumber);
+        EXPECT_EQ(0, bouts2.mNumber);
+
+        EXPECT_EQ(1u, ins2.stream());
+        EXPECT_EQ(1u, outs2.stream());
+        EXPECT_EQ(0u, bins1.stream());
+        EXPECT_EQ(0u, bins2.stream());
+        EXPECT_EQ(0u, bouts1.stream());
+        EXPECT_EQ(0u, bouts2.stream());
+
+        EXPECT_TRUE(ins1 != outs1);
+        EXPECT_TRUE(ins1 == ins2);
+        EXPECT_TRUE(outs1 == outs2);
+        EXPECT_TRUE(bins1 == bouts1);
+        EXPECT_TRUE(bins2 != bouts2);
+
+        EXPECT_TRUE(ins1 != bins1);
+        bins1.mNumber = 100;
+        EXPECT_TRUE(ins1 != bins1);
+        bins1.setPort(false /* output */);
+        EXPECT_TRUE(ins1 != bins1);
+        bins1.setStream(1u);
+        EXPECT_TRUE(ins1 == bins1);
+
+        EXPECT_TRUE(ins2 != bins2);
+        bins2.mNumber = 100;
+        EXPECT_TRUE(ins2 != bins2);
+        bins2.setStream(1u);
+        EXPECT_TRUE(ins2 == bins2);
+
+        bins1.setPort(true /* output */);
+        EXPECT_TRUE(outs1 == bins1);
+
+        EXPECT_TRUE(outs1 != bouts1);
+        bouts1.mNumber = 100;
+        EXPECT_TRUE(outs1 != bouts1);
+        bouts1.setPort(true /* output */);
+        EXPECT_TRUE(outs1 != bouts1);
+        bouts1.setStream(1u);
+        EXPECT_TRUE(outs1 == bouts1);
+
+        EXPECT_TRUE(outs2 != bouts2);
+        bouts2.mNumber = 100;
+        EXPECT_TRUE(outs2 != bouts2);
+        bouts2.setStream(1u);
+        EXPECT_TRUE(outs2 == bouts2);
+
+        bouts1.setPort(false /* output */);
+        EXPECT_TRUE(ins1 == bouts1);
+
+        // index
+        EXPECT_EQ(C2Param::Type(ins1.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(ins1.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(ins1.type(), C2NumberStreamTuning::input::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(ins2.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(ins2.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(ins2.type(), C2NumberStreamTuning::input::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(outs1.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outs1.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(outs1.type(), C2NumberStreamTuning::output::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(outs2.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outs2.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(outs2.type(), C2NumberStreamTuning::output::typeIndex);
+
+        C2Param::BaseIndex index = C2NumberStreamTuning::input::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+
+        index = C2NumberStreamTuning::output::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+
+        C2Param::Type type = C2NumberStreamTuning::input::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_FALSE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_TRUE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_TRUE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        type = C2NumberStreamTuning::output::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_FALSE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_TRUE(type.forOutput());
+        EXPECT_TRUE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        EXPECT_EQ(C2NumberPortTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&ins1), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&ins2), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&outs1), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&outs2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::From(&ins1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::From(&ins2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::From(&outs1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::From(&outs2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&ins1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&ins2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&outs1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&outs2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&ins1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&ins2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&outs1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&outs2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::From(&ins1), &ins1);
+        EXPECT_EQ(C2NumberStreamTuning::From(&ins2), (C2NumberStreamTuning*)&ins2);
+        EXPECT_EQ(C2NumberStreamTuning::From(&outs1), &outs1);
+        EXPECT_EQ(C2NumberStreamTuning::From(&outs2), (C2NumberStreamTuning*)&outs2);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&ins1), (C2NumberStreamTuning::input*)&ins1);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&ins2), &ins2);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&outs1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&outs2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&ins1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&ins2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&outs1), (C2NumberStreamTuning::output*)&outs1);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&outs2), &outs2);
+
+    }
+
+    {
+        uint32_t videoWidth[] = { 12u, C2NumberStreamTuning::output::typeIndex, 100 };
+        C2Param *p1 = C2Param::From(videoWidth, sizeof(videoWidth));
+        EXPECT_NE(p1, nullptr);
+        EXPECT_EQ(12u, p1->size());
+        EXPECT_EQ(p1->type(), C2NumberStreamTuning::output::typeIndex);
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) + 2);
+        EXPECT_EQ(p1, nullptr);
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) - 2);
+        EXPECT_EQ(p1, nullptr);
+
+        p1 = C2Param::From(videoWidth, 3);
+        EXPECT_EQ(p1, nullptr);
+
+        p1 = C2Param::From(videoWidth, 0);
+        EXPECT_EQ(p1, nullptr);
+    }
+}
+
+void StaticTestAddBaseIndex() {
+    struct nobase {};
+    struct base { enum : uint32_t { baseIndex = 1 }; };
+    static_assert(C2AddBaseIndex<nobase, 2>::baseIndex == 2, "should be 2");
+    static_assert(C2AddBaseIndex<base, 1>::baseIndex == 1, "should be 1");
+}
+
+class TestFlexHelper {
+    struct _Flex {
+        int32_t a;
+        char b[];
+        _Flex() {}
+        FLEX(_Flex, b);
+    };
+
+    struct _BoFlex {
+        _Flex a;
+        _BoFlex() {}
+        FLEX(_BoFlex, a);
+    };
+
+    struct _NonFlex {
+    };
+
+
+    static void StaticTest() {
+        static_assert(std::is_same<_C2FlexHelper<char>::flexType, void>::value, "should be void");
+        static_assert(std::is_same<_C2FlexHelper<char[]>::flexType, char>::value, "should be char");
+        static_assert(std::is_same<_C2FlexHelper<_Flex>::flexType, char>::value, "should be char");
+
+        static_assert(std::is_same<_C2FlexHelper<_BoFlex>::flexType, char>::value, "should be void");
+
+        static_assert(_C2Flexible<_Flex>::value, "should be flexible");
+        static_assert(!_C2Flexible<_NonFlex>::value, "should not be flexible");
+    }
+};
+
+TEST_F(C2ParamTest, FlexParamOpsTest) {
+//    const C2NumbersStruct str{100};
+    C2NumbersStruct bstr;
+    {
+//        EXPECT_EQ(100, str->m.mNumbers[0]);
+        (void)&bstr.mNumbers[0];
+
+        C2Param::BaseIndex index = C2NumbersStruct::baseIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+    }
+
+    std::unique_ptr<C2NumbersTuning> tun_ = C2NumbersTuning::alloc_unique(1);
+    tun_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersTuning> tun = std::move(tun_);
+    std::shared_ptr<C2NumbersTuning> btun = C2NumbersTuning::alloc_shared(1);
+
+    {
+        // flags & invariables
+        const C2NumbersTuning *T[] = { tun.get(), btun.get() };
+        for (const auto p : T) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+            EXPECT_EQ(12u, p->size());
+
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_TRUE(p->isGlobal());
+            EXPECT_FALSE(p->forInput());
+            EXPECT_FALSE(p->forOutput());
+            EXPECT_FALSE(p->forStream());
+            EXPECT_FALSE(p->forPort());
+        }
+
+        // value
+        EXPECT_EQ(100, tun->m.mNumbers[0]);
+        EXPECT_EQ(0, btun->m.mNumbers[0]);
+        EXPECT_FALSE(*tun == *btun);
+        EXPECT_FALSE(tun->operator==(*btun));
+        EXPECT_TRUE(*tun != *btun);
+        EXPECT_TRUE(tun->operator!=(*btun));
+        btun->m.mNumbers[0] = 100;
+        EXPECT_EQ(*tun, *btun);
+
+        // index
+        EXPECT_EQ(C2Param::Type(tun->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(tun->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(tun->type(), C2NumbersTuning::typeIndex);
+        EXPECT_EQ(tun->stream(), ~0u);
+
+        C2Param::BaseIndex index = C2NumbersTuning::baseIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+
+        C2Param::Type type = C2NumbersTuning::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_TRUE(type.isFlexible());
+        EXPECT_TRUE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        EXPECT_EQ(C2NumbersTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(tun.get()), tun.get());
+        EXPECT_EQ(C2NumbersPortTuning::From(tun.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(tun.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(tun.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::From(tun.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(tun.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(tun.get()), nullptr);
+    }
+
+    std::unique_ptr<C2NumbersPortTuning> outp1_(C2NumbersPortTuning::alloc_unique(1, true)),
+            inp1_ = C2NumbersPortTuning::alloc_unique(1, false);
+    outp1_->m.mNumbers[0] = 100;
+    inp1_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersPortTuning> outp1 = std::move(outp1_);
+    std::unique_ptr<const C2NumbersPortTuning> inp1 = std::move(inp1_);
+    std::shared_ptr<C2NumbersPortTuning> boutp1(C2NumbersPortTuning::alloc_shared(1)),
+            binp1 = C2NumbersPortTuning::alloc_shared(1),
+            binp3 = C2NumbersPortTuning::alloc_shared(1, false);
+    binp3->m.mNumbers[0] = 100;
+    std::unique_ptr<C2NumbersPortTuning::input> inp2_(C2NumbersPortTuning::input::alloc_unique(1));
+    inp2_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersPortTuning::input> inp2 = std::move(inp2_);
+    std::shared_ptr<C2NumbersPortTuning::input> binp2(C2NumbersPortTuning::input::alloc_shared(1));
+    std::unique_ptr<C2NumbersPortTuning::output> outp2_(C2NumbersPortTuning::output::alloc_unique(1));
+    outp2_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersPortTuning::output> outp2 = std::move(outp2_);
+    std::shared_ptr<C2NumbersPortTuning::output> boutp2(C2NumbersPortTuning::output::alloc_shared(1));
+
+    {
+        static_assert(canCallSetPort(*binp3), "should be able to");
+        static_assert(canCallSetPort(*binp1), "should be able to");
+        static_assert(!canCallSetPort(*inp1), "should not be able to (const)");
+        static_assert(!canCallSetPort(*inp2), "should not be able to (const & type)");
+        static_assert(!canCallSetPort(*binp2), "should not be able to (type)");
+
+        // flags & invariables
+        const C2NumbersPortTuning *P[] = { outp1.get(), inp1.get(), boutp1.get() };
+        for (const auto p : P) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_FALSE(p->forStream());
+            EXPECT_TRUE(p->forPort());
+        }
+        const C2NumbersPortTuning::input *PI[] = { inp2.get(), binp2.get() };
+        for (const auto p : PI) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_FALSE(p->forStream());
+            EXPECT_TRUE(p->forPort());
+        }
+        const C2NumbersPortTuning::output *PO[] = { outp2.get(), boutp2.get() };
+        for (const auto p : PO) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_FALSE(p->forStream());
+            EXPECT_TRUE(p->forPort());
+        }
+
+        // port specific flags & invariables
+        EXPECT_FALSE(outp1->forInput());
+        EXPECT_TRUE(outp1->forOutput());
+
+        EXPECT_TRUE(inp1->forInput());
+        EXPECT_FALSE(inp1->forOutput());
+
+        const C2NumbersPortTuning *P2[] = { outp1.get(), inp1.get() };
+        for (const auto p : P2) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+            EXPECT_EQ(100, p->m.mNumbers[0]);
+        }
+        for (const auto p : PO) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+
+            EXPECT_FALSE(p->forInput());
+            EXPECT_TRUE(p->forOutput());
+        }
+        for (const auto p : PI) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+
+            EXPECT_TRUE(p->forInput());
+            EXPECT_FALSE(p->forOutput());
+        }
+        const C2NumbersPortTuning *P3[] = { boutp1.get() };
+        for (const auto p : P3) {
+            EXPECT_FALSE((bool)(*p));
+            EXPECT_TRUE(!(*p));
+
+            EXPECT_FALSE(p->forInput());
+            EXPECT_FALSE(p->forOutput());
+            EXPECT_EQ(0, p->m.mNumbers[0]);
+        }
+
+        // values
+        EXPECT_EQ(100, inp2->m.mNumbers[0]);
+        EXPECT_EQ(100, outp2->m.mNumbers[0]);
+        EXPECT_EQ(0, binp1->m.mNumbers[0]);
+        EXPECT_EQ(0, binp2->m.mNumbers[0]);
+        EXPECT_EQ(0, boutp1->m.mNumbers[0]);
+        EXPECT_EQ(0, boutp2->m.mNumbers[0]);
+
+        EXPECT_TRUE(*inp1 != *outp1);
+        EXPECT_TRUE(*inp1 == *inp2);
+        EXPECT_TRUE(*outp1 == *outp2);
+        EXPECT_TRUE(*binp1 == *boutp1);
+        EXPECT_TRUE(*binp2 != *boutp2);
+
+        EXPECT_TRUE(*inp1 != *binp1);
+        binp1->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*inp1 != *binp1);
+        binp1->setPort(false /* output */);
+        EXPECT_TRUE((bool)*binp1);
+        EXPECT_FALSE(!*binp1);
+        EXPECT_TRUE(*inp1 == *binp1);
+
+        EXPECT_TRUE(*inp2 != *binp2);
+        binp2->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*inp2 == *binp2);
+
+        binp1->setPort(true /* output */);
+        EXPECT_TRUE(*outp1 == *binp1);
+
+        EXPECT_TRUE(*outp1 != *boutp1);
+        boutp1->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*outp1 != *boutp1);
+        boutp1->setPort(true /* output */);
+        EXPECT_TRUE((bool)*boutp1);
+        EXPECT_FALSE(!*boutp1);
+        EXPECT_TRUE(*outp1 == *boutp1);
+
+        EXPECT_TRUE(*outp2 != *boutp2);
+        boutp2->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*outp2 == *boutp2);
+
+        boutp1->setPort(false /* output */);
+        EXPECT_TRUE(*inp1 == *boutp1);
+
+        // index
+        EXPECT_EQ(C2Param::Type(inp1->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(inp1->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(inp1->type(), C2NumbersPortTuning::input::typeIndex);
+        EXPECT_EQ(inp1->stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(inp2->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(inp2->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(inp2->type(), C2NumbersPortTuning::input::typeIndex);
+        EXPECT_EQ(inp2->stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(outp1->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outp1->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(outp1->type(), C2NumbersPortTuning::output::typeIndex);
+        EXPECT_EQ(outp1->stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(outp2->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outp2->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(outp2->type(), C2NumbersPortTuning::output::typeIndex);
+        EXPECT_EQ(outp2->stream(), ~0u);
+
+        C2Param::BaseIndex index = C2NumbersPortTuning::input::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+
+        index = C2NumbersPortTuning::output::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+
+        C2Param::Type type = C2NumbersPortTuning::input::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_TRUE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_TRUE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_TRUE(type.forPort());
+
+        type = C2NumbersPortTuning::output::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_TRUE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_TRUE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_TRUE(type.forPort());
+
+        EXPECT_EQ(C2NumbersPortTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(inp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(inp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(outp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(outp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::From(inp1.get()), inp1.get());
+        EXPECT_EQ(C2NumbersPortTuning::From(inp2.get()), (C2NumbersPortTuning*)inp2.get());
+        EXPECT_EQ(C2NumbersPortTuning::From(outp1.get()), outp1.get());
+        EXPECT_EQ(C2NumbersPortTuning::From(outp2.get()), (C2NumbersPortTuning*)outp2.get());
+        EXPECT_EQ(C2NumbersPortTuning::input::From(inp1.get()), (C2NumbersPortTuning::input*)inp1.get());
+        EXPECT_EQ(C2NumbersPortTuning::input::From(inp2.get()), inp2.get());
+        EXPECT_EQ(C2NumbersPortTuning::input::From(outp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(outp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(inp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(inp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(outp1.get()), (C2NumbersPortTuning::output*)outp1.get());
+        EXPECT_EQ(C2NumbersPortTuning::output::From(outp2.get()), outp2.get());
+        EXPECT_EQ(C2NumbersStreamTuning::From(inp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::From(inp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::From(outp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::From(outp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(inp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(inp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(outp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(outp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(inp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(inp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(outp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(outp2.get()), nullptr);
+
+    }
+
+    std::unique_ptr<C2NumbersStreamTuning> outs1_(C2NumbersStreamTuning::alloc_unique(1, true, 1u));
+    outs1_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersStreamTuning> outs1 = std::move(outs1_);
+    std::unique_ptr<C2NumbersStreamTuning> ins1_(C2NumbersStreamTuning::alloc_unique(1, false, 1u));
+    ins1_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersStreamTuning> ins1 = std::move(ins1_);
+    std::shared_ptr<C2NumbersStreamTuning> bouts1(C2NumbersStreamTuning::alloc_shared(1));
+    std::shared_ptr<C2NumbersStreamTuning> bins1(C2NumbersStreamTuning::alloc_shared(1));
+    std::shared_ptr<C2NumbersStreamTuning> bins3(C2NumbersStreamTuning::alloc_shared(1, false, 1u));
+    bins3->m.mNumbers[0] = 100;
+    std::unique_ptr<C2NumbersStreamTuning::input> ins2_(C2NumbersStreamTuning::input::alloc_unique(1, 1u));
+    ins2_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersStreamTuning::input> ins2 = std::move(ins2_);
+    std::shared_ptr<C2NumbersStreamTuning::input> bins2(C2NumbersStreamTuning::input::alloc_shared(1));
+    std::unique_ptr<C2NumbersStreamTuning::output> outs2_(C2NumbersStreamTuning::output::alloc_unique(1, 1u));
+    outs2_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersStreamTuning::output> outs2 = std::move(outs2_);
+    std::shared_ptr<C2NumbersStreamTuning::output> bouts2(C2NumbersStreamTuning::output::alloc_shared(1));
+
+    {
+        static_assert(canCallSetPort(*bins3), "should be able to");
+        static_assert(canCallSetPort(*bins1), "should be able to");
+        static_assert(!canCallSetPort(*ins1), "should not be able to (const)");
+        static_assert(!canCallSetPort(*ins2), "should not be able to (const & type)");
+        static_assert(!canCallSetPort(*bins2), "should not be able to (type)");
+
+        // flags & invariables
+        const C2NumbersStreamTuning *S[] = { outs1.get(), ins1.get(), bouts1.get() };
+        for (const auto p : S) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_TRUE(p->forStream());
+            EXPECT_FALSE(p->forPort());
+        }
+        const C2NumbersStreamTuning::input *SI[] = { ins2.get(), bins2.get() };
+        for (const auto p : SI) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_TRUE(p->forStream());
+            EXPECT_FALSE(p->forPort());
+        }
+        const C2NumbersStreamTuning::output *SO[] = { outs2.get(), bouts2.get() };
+        for (const auto p : SO) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_TRUE(p->forStream());
+            EXPECT_FALSE(p->forPort());
+        }
+
+        // port specific flags & invariables
+        EXPECT_FALSE(outs1->forInput());
+        EXPECT_TRUE(outs1->forOutput());
+
+        EXPECT_TRUE(ins1->forInput());
+        EXPECT_FALSE(ins1->forOutput());
+
+        const C2NumbersStreamTuning *S2[] = { outs1.get(), ins1.get() };
+        for (const auto p : S2) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+            EXPECT_EQ(100, p->m.mNumbers[0]);
+            EXPECT_EQ(1u, p->stream());
+        }
+        for (const auto p : SO) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+
+            EXPECT_FALSE(p->forInput());
+            EXPECT_TRUE(p->forOutput());
+        }
+        for (const auto p : SI) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+
+            EXPECT_TRUE(p->forInput());
+            EXPECT_FALSE(p->forOutput());
+        }
+        const C2NumbersStreamTuning *S3[] = { bouts1.get() };
+        for (const auto p : S3) {
+            EXPECT_FALSE((bool)(*p));
+            EXPECT_TRUE(!(*p));
+
+            EXPECT_FALSE(p->forInput());
+            EXPECT_FALSE(p->forOutput());
+            EXPECT_EQ(0, p->m.mNumbers[0]);
+        }
+
+        // values
+        EXPECT_EQ(100, ins2->m.mNumbers[0]);
+        EXPECT_EQ(100, outs2->m.mNumbers[0]);
+        EXPECT_EQ(0, bins1->m.mNumbers[0]);
+        EXPECT_EQ(0, bins2->m.mNumbers[0]);
+        EXPECT_EQ(0, bouts1->m.mNumbers[0]);
+        EXPECT_EQ(0, bouts2->m.mNumbers[0]);
+
+        EXPECT_EQ(1u, ins2->stream());
+        EXPECT_EQ(1u, outs2->stream());
+        EXPECT_EQ(0u, bins1->stream());
+        EXPECT_EQ(0u, bins2->stream());
+        EXPECT_EQ(0u, bouts1->stream());
+        EXPECT_EQ(0u, bouts2->stream());
+
+        EXPECT_TRUE(*ins1 != *outs1);
+        EXPECT_TRUE(*ins1 == *ins2);
+        EXPECT_TRUE(*outs1 == *outs2);
+        EXPECT_TRUE(*bins1 == *bouts1);
+        EXPECT_TRUE(*bins2 != *bouts2);
+
+        EXPECT_TRUE(*ins1 != *bins1);
+        bins1->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*ins1 != *bins1);
+        bins1->setPort(false /* output */);
+        EXPECT_TRUE(*ins1 != *bins1);
+        bins1->setStream(1u);
+        EXPECT_TRUE(*ins1 == *bins1);
+
+        EXPECT_TRUE(*ins2 != *bins2);
+        bins2->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*ins2 != *bins2);
+        bins2->setStream(1u);
+        EXPECT_TRUE(*ins2 == *bins2);
+
+        bins1->setPort(true /* output */);
+        EXPECT_TRUE(*outs1 == *bins1);
+
+        EXPECT_TRUE(*outs1 != *bouts1);
+        bouts1->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*outs1 != *bouts1);
+        bouts1->setPort(true /* output */);
+        EXPECT_TRUE(*outs1 != *bouts1);
+        bouts1->setStream(1u);
+        EXPECT_TRUE(*outs1 == *bouts1);
+
+        EXPECT_TRUE(*outs2 != *bouts2);
+        bouts2->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*outs2 != *bouts2);
+        bouts2->setStream(1u);
+        EXPECT_TRUE(*outs2 == *bouts2);
+
+        bouts1->setPort(false /* output */);
+        EXPECT_TRUE(*ins1 == *bouts1);
+
+        // index
+        EXPECT_EQ(C2Param::Type(ins1->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(ins1->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(ins1->type(), C2NumbersStreamTuning::input::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(ins2->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(ins2->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(ins2->type(), C2NumbersStreamTuning::input::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(outs1->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outs1->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(outs1->type(), C2NumbersStreamTuning::output::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(outs2->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outs2->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(outs2->type(), C2NumbersStreamTuning::output::typeIndex);
+
+        C2Param::BaseIndex index = C2NumbersStreamTuning::input::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+
+        index = C2NumbersStreamTuning::output::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+
+        C2Param::Type type = C2NumbersStreamTuning::input::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_TRUE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_TRUE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_TRUE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        type = C2NumbersStreamTuning::output::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_TRUE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_TRUE(type.forOutput());
+        EXPECT_TRUE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        EXPECT_EQ(C2NumbersPortTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(ins1.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(ins2.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(outs1.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(outs2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::From(ins1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::From(ins2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::From(outs1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::From(outs2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(ins1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(ins2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(outs1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(outs2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(ins1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(ins2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(outs1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(outs2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::From(ins1.get()), ins1.get());
+        EXPECT_EQ(C2NumbersStreamTuning::From(ins2.get()), (C2NumbersStreamTuning*)ins2.get());
+        EXPECT_EQ(C2NumbersStreamTuning::From(outs1.get()), outs1.get());
+        EXPECT_EQ(C2NumbersStreamTuning::From(outs2.get()), (C2NumbersStreamTuning*)outs2.get());
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(ins1.get()), (C2NumbersStreamTuning::input*)ins1.get());
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(ins2.get()), ins2.get());
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(outs1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(outs2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(ins1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(ins2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(outs1.get()), (C2NumbersStreamTuning::output*)outs1.get());
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(outs2.get()), outs2.get());
+
+    }
+
+    {
+        C2Int32Value int32Value(INT32_MIN);
+        static_assert(std::is_same<decltype(int32Value.mValue), int32_t>::value, "should be int32_t");
+        EXPECT_EQ(INT32_MIN, int32Value.mValue);
+        std::list<const C2FieldDescriptor> fields = int32Value.fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::INT32, fields.cbegin()->type());
+        EXPECT_EQ(1u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+    }
+
+    {
+        C2Uint32Value uint32Value(UINT32_MAX);
+        static_assert(std::is_same<decltype(uint32Value.mValue), uint32_t>::value, "should be uint32_t");
+        EXPECT_EQ(UINT32_MAX, uint32Value.mValue);
+        std::list<const C2FieldDescriptor> fields = uint32Value.fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::UINT32, fields.cbegin()->type());
+        EXPECT_EQ(1u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+    }
+
+    {
+        C2Int64Value int64Value(INT64_MIN);
+        static_assert(std::is_same<decltype(int64Value.mValue), int64_t>::value, "should be int64_t");
+        EXPECT_EQ(INT64_MIN, int64Value.mValue);
+        std::list<const C2FieldDescriptor> fields = int64Value.fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::INT64, fields.cbegin()->type());
+        EXPECT_EQ(1u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+    }
+
+    {
+        C2Uint64Value uint64Value(UINT64_MAX);
+        static_assert(std::is_same<decltype(uint64Value.mValue), uint64_t>::value, "should be uint64_t");
+        EXPECT_EQ(UINT64_MAX, uint64Value.mValue);
+        std::list<const C2FieldDescriptor> fields = uint64Value.fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::UINT64, fields.cbegin()->type());
+        EXPECT_EQ(1u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+    }
+
+    {
+        C2FloatValue floatValue(123.4f);
+        static_assert(std::is_same<decltype(floatValue.mValue), float>::value, "should be float");
+        EXPECT_EQ(123.4f, floatValue.mValue);
+        std::list<const C2FieldDescriptor> fields = floatValue.fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::FLOAT, fields.cbegin()->type());
+        EXPECT_EQ(1u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+    }
+
+    {
+        uint8_t initValue[] = "ABCD";
+        typedef C2GlobalParam<C2Setting, C2BlobValue, 0> BlobSetting;
+        std::unique_ptr<BlobSetting> blobValue = BlobSetting::alloc_unique(6, C2ConstMemoryBlock<uint8_t>(initValue));
+        static_assert(std::is_same<decltype(blobValue->m.mValue), uint8_t[]>::value, "should be uint8_t[]");
+        EXPECT_EQ(0, memcmp(blobValue->m.mValue, "ABCD\0", 6));
+        EXPECT_EQ(6u, blobValue->flexCount());
+        std::list<const C2FieldDescriptor> fields = blobValue->fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::BLOB, fields.cbegin()->type());
+        EXPECT_EQ(0u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+
+        blobValue = BlobSetting::alloc_unique(3, C2ConstMemoryBlock<uint8_t>(initValue));
+        EXPECT_EQ(0, memcmp(blobValue->m.mValue, "ABC", 3));
+        EXPECT_EQ(3u, blobValue->flexCount());
+    }
+
+    {
+        constexpr char initValue[] = "ABCD";
+        typedef C2GlobalParam<C2Setting, C2StringValue, 0> StringSetting;
+        std::unique_ptr<StringSetting> stringValue = StringSetting::alloc_unique(6, C2ConstMemoryBlock<char>(initValue));
+        stringValue = StringSetting::alloc_unique(6, initValue);
+        static_assert(std::is_same<decltype(stringValue->m.mValue), char[]>::value, "should be char[]");
+        EXPECT_EQ(0, memcmp(stringValue->m.mValue, "ABCD\0", 6));
+        EXPECT_EQ(6u, stringValue->flexCount());
+        std::list<const C2FieldDescriptor> fields = stringValue->fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::STRING, fields.cbegin()->type());
+        EXPECT_EQ(0u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+
+        stringValue = StringSetting::alloc_unique(3, C2ConstMemoryBlock<char>(initValue));
+        EXPECT_EQ(0, memcmp(stringValue->m.mValue, "AB", 3));
+        EXPECT_EQ(3u, stringValue->flexCount());
+
+        stringValue = StringSetting::alloc_unique(11, "initValue");
+        EXPECT_EQ(0, memcmp(stringValue->m.mValue, "initValue\0", 11));
+        EXPECT_EQ(11u, stringValue->flexCount());
+
+        stringValue = StringSetting::alloc_unique(initValue);
+        EXPECT_EQ(0, memcmp(stringValue->m.mValue, "ABCD", 5));
+        EXPECT_EQ(5u, stringValue->flexCount());
+
+        stringValue = StringSetting::alloc_unique({ 'A', 'B', 'C', 'D' });
+        EXPECT_EQ(0, memcmp(stringValue->m.mValue, "ABC", 4));
+        EXPECT_EQ(4u, stringValue->flexCount());
+    }
+
+    {
+        uint32_t videoWidth[] = { 12u, C2NumbersStreamTuning::output::typeIndex, 100 };
+        C2Param *p1 = C2Param::From(videoWidth, sizeof(videoWidth));
+        EXPECT_NE(nullptr, p1);
+        EXPECT_EQ(12u, p1->size());
+        EXPECT_EQ(C2NumbersStreamTuning::output::typeIndex, p1->type());
+
+        C2NumbersStreamTuning::output *vst = C2NumbersStreamTuning::output::From(p1);
+        EXPECT_NE(nullptr, vst);
+        if (vst) {
+            EXPECT_EQ(1u, vst->flexCount());
+            EXPECT_EQ(100, vst->m.mNumbers[0]);
+        }
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) + 2);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) - 2);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, 3);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, 0);
+        EXPECT_EQ(nullptr, p1);
+    }
+
+    {
+        uint32_t videoWidth[] = { 16u, C2NumbersPortTuning::input::typeIndex, 101, 102 };
+
+        C2Param *p1 = C2Param::From(videoWidth, sizeof(videoWidth));
+        EXPECT_NE(nullptr, p1);
+        EXPECT_EQ(16u, p1->size());
+        EXPECT_EQ(C2NumbersPortTuning::input::typeIndex, p1->type());
+
+        C2NumbersPortTuning::input *vpt = C2NumbersPortTuning::input::From(p1);
+        EXPECT_NE(nullptr, vpt);
+        if (vpt) {
+            EXPECT_EQ(2u, vpt->flexCount());
+            EXPECT_EQ(101, vpt->m.mNumbers[0]);
+            EXPECT_EQ(102, vpt->m.mNumbers[1]);
+        }
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) + 2);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) - 2);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, 3);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, 0);
+        EXPECT_EQ(nullptr, p1);
+    }
+}
+
+// ***********************
+
+}
+
+#include <util/C2ParamUtils.h>
+#include <C2Config.h>
+#include <C2Component.h>
+#include <unordered_map>
+
+namespace android {
+
+C2ENUM(
+    MetadataType, int32_t,
+    kInvalid = -1,
+    kNone = 0,
+    kGralloc,
+    kNativeHandle,
+    kANativeWindow,
+    kCamera,
+)
+
+enum {
+    kParamIndexVideoConfig = 0x1234,
+};
+
+struct C2VideoConfigStruct {
+    int32_t mWidth;
+    uint32_t mHeight;
+    MetadataType mMetadataType;
+    int32_t mSupportedFormats[];
+
+    C2VideoConfigStruct() {}
+
+    DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(VideoConfig, mSupportedFormats)
+    C2FIELD(mWidth, "width")
+    C2FIELD(mHeight, "height")
+    C2FIELD(mMetadataType, "metadata-type")
+    C2FIELD(mSupportedFormats, "formats")
+};
+
+typedef C2PortParam<C2Tuning, C2VideoConfigStruct> C2VideoConfigPortTuning;
+
+class MyReflector : public C2ParamReflector {
+private:
+    std::unique_ptr<C2VideoConfigPortTuning::input> inputVideoConfigTuning;
+    std::unique_ptr<C2VideoConfigPortTuning::output> outputVideoConfigTuning;
+
+public:
+    void describeSupportedValues() {
+        C2TypedFieldSupportedValues<int32_t> supportedWidths(16, 1920, 8);
+        C2FieldSupportedValues supportedWidths2(16, 1920, 8);
+
+
+        std::list<C2FieldSupportedValues> supported;
+        //supported.emplace_push(inputVideoConfigTuning->mNumber, range(16, 1920, 8));
+        //supported.emplace_push(inputVideoConfigTuning->mHeight, range(16, 1088, 8));
+        //supported.emplace_push(inputVideoConfigTuning->mMetadataType, all_enums);
+        //supported.emplace_push(inputVideoConfigTuning->mSupportedFormats, { 0, 1, 5, 7 });
+    }
+
+    virtual std::unique_ptr<android::C2StructDescriptor> describe(C2Param::BaseIndex paramType) {
+        switch (paramType.baseIndex()) {
+        case C2VideoConfigPortTuning::baseIndex:
+            return std::unique_ptr<C2StructDescriptor>(new C2StructDescriptor{
+                paramType.baseIndex(),
+                C2VideoConfigPortTuning::fieldList,
+            });
+        }
+        return nullptr;
+    }
+};
+
+class MyComponentInstance : public C2ComponentInterface {
+public:
+    virtual C2String getName() const {
+        /// \todo this seems too specific
+        return "sample.interface";
+    };
+
+    virtual node_id getId() const {
+        /// \todo how are these shared?
+        return 0;
+    }
+
+    virtual status_t commit_sm(
+            const std::vector<C2Param* const> &params,
+            std::vector<std::unique_ptr<C2SettingResult>>* const failures) {
+        (void)params;
+        (void)failures;
+        return C2_UNSUPPORTED;
+    }
+
+    virtual status_t config_nb(
+            const std::vector<C2Param* const> &params,
+            std::vector<std::unique_ptr<C2SettingResult>>* const failures) {
+        (void)params;
+        (void)failures;
+        return C2_UNSUPPORTED;
+    }
+
+    virtual status_t createTunnel_sm(node_id targetComponent) {
+        (void)targetComponent;
+        return C2_UNSUPPORTED;
+    }
+
+    virtual status_t query_nb(
+            const std::vector<C2Param* const> &stackParams,
+            const std::vector<C2Param::Index> &heapParamIndices,
+            std::vector<std::unique_ptr<C2Param>>* const heapParams) const {
+        for (C2Param* const param : stackParams) {
+            if (!*param) { // param is already invalid - remember it
+                continue;
+            }
+
+            // note: this does not handle stream params (should use index...)
+            if (!mMyParams.count(param->type())) {
+                continue; // not my param
+            }
+
+            C2Param & myParam = mMyParams.find(param->type())->second;
+            if (myParam.size() != param->size()) { // incorrect size
+                param->invalidate();
+                continue;
+            }
+
+            param->updateFrom(myParam);
+        }
+
+        for (const C2Param::Index index : heapParamIndices) {
+            if (mMyParams.count(index)) {
+                C2Param & myParam = mMyParams.find(index)->second;
+                std::unique_ptr<C2Param> paramCopy(C2Param::From(&myParam, myParam.size()));
+                heapParams->push_back(std::move(paramCopy));
+            }
+        }
+
+        return C2_OK;
+    }
+
+    std::unordered_map<uint32_t, C2Param &> mMyParams;
+
+    C2ComponentDomainInfo mDomainInfo;
+
+    MyComponentInstance() {
+        mMyParams.insert({mDomainInfo.type(), mDomainInfo});
+    }
+
+    virtual status_t releaseTunnel_sm(node_id targetComponent) {
+        (void)targetComponent;
+        return C2_UNSUPPORTED;
+    }
+
+    class MyParamReflector : public C2ParamReflector {
+        const MyComponentInstance *instance;
+
+    public:
+        MyParamReflector(const MyComponentInstance *i) : instance(i) { }
+
+        virtual std::unique_ptr<C2StructDescriptor> describe(C2Param::BaseIndex paramIndex) {
+            switch (paramIndex.baseIndex()) {
+            case decltype(instance->mDomainInfo)::baseIndex:
+            default:
+                return std::unique_ptr<C2StructDescriptor>(new C2StructDescriptor{
+                    instance->mDomainInfo.type(),
+                    decltype(instance->mDomainInfo)::fieldList,
+                });
+            }
+            return nullptr;
+        }
+    };
+
+    virtual status_t getSupportedValues(
+            const std::vector<const C2ParamField> fields,
+            std::vector<C2FieldSupportedValues>* const values) const {
+        for (const C2ParamField &field : fields) {
+            if (field == C2ParamField(&mDomainInfo, &C2ComponentDomainInfo::mValue)) {
+                values->push_back(C2FieldSupportedValues(
+                    false /* flag */,
+                    &mDomainInfo.mValue
+                    //,
+                    //{(int32_t)C2DomainVideo}
+                ));
+            }
+        }
+        return C2_OK;
+    }
+
+    virtual std::shared_ptr<C2ParamReflector> getParamReflector() const {
+        return std::shared_ptr<C2ParamReflector>(new MyParamReflector(this));
+    }
+
+    virtual status_t getSupportedParams(std::vector<std::shared_ptr<C2ParamDescriptor>> * const params) const {
+        params->push_back(std::make_shared<C2ParamDescriptor>(
+                true /* required */, "_domain", &mDomainInfo));
+        return C2_OK;
+    }
+
+    status_t getSupportedParams2(std::vector<std::shared_ptr<C2ParamDescriptor>> * const params) {
+        params->push_back(std::shared_ptr<C2ParamDescriptor>(
+                new C2ParamDescriptor(true /* required */, "_domain", &mDomainInfo)));
+        return C2_OK;
+    }
+
+};
+
+template<typename E, bool S=std::is_enum<E>::value>
+struct getter {
+    int32_t get(const C2FieldSupportedValues::Primitive &p, int32_t*) {
+        return p.i32;
+    }
+    int64_t get(const C2FieldSupportedValues::Primitive &p, int64_t*) {
+        return p.i64;
+    }
+    uint32_t get(const C2FieldSupportedValues::Primitive &p, uint32_t*) {
+        return p.u32;
+    }
+    uint64_t get(const C2FieldSupportedValues::Primitive &p, uint64_t*) {
+        return p.u64;
+    }
+    float get(const C2FieldSupportedValues::Primitive &p, float*) {
+        return p.fp;
+    }
+};
+
+template<typename E>
+struct getter<E, true> {
+     typename std::underlying_type<E>::type get(const C2FieldSupportedValues::Primitive &p, E*) {
+         using u=typename std::underlying_type<E>::type;
+         return getter<u>().get(p, (u*)0);
+     }
+};
+
+template<typename T, bool E=std::is_enum<T>::value>
+struct lax_underlying_type {
+    typedef typename std::underlying_type<T>::type type;
+};
+
+template<typename T>
+struct lax_underlying_type<T, false> {
+    typedef T type;
+};
+
+template<typename E>
+typename lax_underlying_type<E>::type get(
+        const C2FieldSupportedValues::Primitive &p, E*) {
+    return getter<E>().get(p, (E*)0);
+}
+
+template<typename T>
+void dumpFSV(const C2FieldSupportedValues &sv, T*t) {
+    using namespace std;
+    cout << (std::is_enum<T>::value ? (std::is_signed<typename std::underlying_type<T>::type>::value ? "i" : "u")
+             : std::is_integral<T>::value ? std::is_signed<T>::value ? "i" : "u" : "f")
+        << (8 * sizeof(T));
+    if (sv.type == sv.RANGE) {
+        cout << ".range(" << get(sv.range.min, t);
+        if (get(sv.range.step, t) != std::is_integral<T>::value) {
+            cout << ":" << get(sv.range.step, t);
+        }
+        if (get(sv.range.nom, t) != 1 || get(sv.range.denom, t) != 1) {
+            cout << ":" << get(sv.range.nom, t) << "/" << get(sv.range.denom, t);
+        }
+        cout << get(sv.range.max, t) << ")";
+    }
+    if (sv.values.size()) {
+        cout << (sv.type == sv.FLAGS ? ".flags(" : ".list(");
+        const char *sep = "";
+        for (const C2FieldSupportedValues::Primitive &p : sv.values) {
+            cout << sep << get(p, t);
+            sep = ",";
+        }
+        cout << ")";
+    }
+    cout << endl;
+}
+
+void dumpType(C2Param::Type type) {
+    using namespace std;
+    cout << (type.isVendor() ? "Vendor" : "C2");
+    if (type.forInput()) {
+        cout << "Input";
+    } else if (type.forOutput()) {
+        cout << "Output";
+    } else if (type.forPort() && !type.forStream()) {
+        cout << "Port";
+    }
+    if (type.forStream()) {
+        cout << "Stream";
+    }
+
+    if (type.isFlexible()) {
+        cout << "Flex";
+    }
+
+    cout << type.paramIndex();
+
+    switch (type.kind()) {
+    case C2Param::INFO: cout << "Info"; break;
+    case C2Param::SETTING: cout << "Setting"; break;
+    case C2Param::TUNING: cout << "Tuning"; break;
+    case C2Param::STRUCT: cout << "Struct"; break;
+    default: cout << "Kind" << (int32_t)type.kind(); break;
+    }
+}
+
+void dumpType(C2Param::BaseIndex type) {
+    using namespace std;
+    cout << (type.isVendor() ? "Vendor" : "C2");
+    if (type.isFlexible()) {
+        cout << "Flex";
+    }
+
+    cout << type.paramIndex() << "Struct";
+}
+
+void dumpType(FD::Type type) {
+    using namespace std;
+    switch (type) {
+    case FD::BLOB: cout << "blob "; break;
+    case FD::FLOAT: cout << "float "; break;
+    case FD::INT32: cout << "int32_t "; break;
+    case FD::INT64: cout << "int64_t "; break;
+    case FD::UINT32: cout << "uint32_t "; break;
+    case FD::UINT64: cout << "uint64_t "; break;
+    case FD::STRING: cout << "char "; break;
+    default:
+        cout << "struct ";
+        dumpType((C2Param::Type)type);
+        break;
+    }
+}
+
+void dumpStruct(const C2StructDescriptor &sd) {
+    using namespace std;
+    cout << "struct ";
+    dumpType(sd.baseIndex());
+    cout << " {" << endl;
+    //C2FieldDescriptor &f;
+    for (const C2FieldDescriptor &f : sd) {
+        PrintTo(f, &cout);
+        cout << endl;
+
+        if (f.namedValues().size()) {
+            cout << ".named(";
+            const char *sep = "";
+            for (const FD::named_value_type &p : f.namedValues()) {
+                cout << sep << p.first << "=";
+                switch (f.type()) {
+                case C2Value::INT32: cout << get(p.second, (int32_t *)0); break;
+                case C2Value::INT64: cout << get(p.second, (int64_t *)0); break;
+                case C2Value::UINT32: cout << get(p.second, (uint32_t *)0); break;
+                case C2Value::UINT64: cout << get(p.second, (uint64_t *)0); break;
+                case C2Value::FLOAT: cout << get(p.second, (float *)0); break;
+                default: cout << "???"; break;
+                }
+                sep = ",";
+            }
+            cout << ")";
+        }
+    }
+
+    cout << "};" << endl;
+}
+
+void dumpDesc(const C2ParamDescriptor &pd) {
+    using namespace std;
+    if (pd.isRequired()) {
+        cout << "required ";
+    }
+    if (pd.isPersistent()) {
+        cout << "persistent ";
+    }
+    cout << "struct ";
+    dumpType(pd.type());
+    cout << " " << pd.name() << ";" << endl;
+}
+
+TEST_F(C2ParamTest, ReflectorTest) {
+    C2ComponentDomainInfo domainInfo;
+    std::shared_ptr<C2ComponentInterface> comp(new MyComponentInstance);
+    std::vector<C2FieldSupportedValues> values;
+
+    std::unique_ptr<C2StructDescriptor> desc{
+        comp->getParamReflector()->describe(C2ComponentDomainInfo::indexFlags)};
+    dumpStruct(*desc);
+
+    EXPECT_EQ(
+        C2_OK,
+        comp->getSupportedValues(
+            { C2ParamField(&domainInfo, &C2ComponentDomainInfo::mValue) },
+            &values)
+    );
+
+    for (const C2FieldSupportedValues &sv : values) {
+        dumpFSV(sv, &domainInfo.mValue);
+    }
+}
+
+C2ENUM(Enum1, uint32_t,
+    Enum1Value1,
+    Enum1Value2,
+    Enum1Value4 = Enum1Value2 + 2,
+);
+
+C2ENUM_CUSTOM_PREFIX(Enum2, uint32_t, "Enum",
+    Enum2Value1,
+    Enum2Value2,
+    Enum2Value4 = Enum1Value2 + 2,
+);
+
+C2ENUM_CUSTOM_NAMES(Enum3, uint8_t,
+    ({ { "value1", Enum3Value1 },
+       { "value2", Enum3Value2 },
+       { "value4", Enum3Value4 },
+       { "invalid", Invalid } }),
+    Enum3Value1,
+    Enum3Value2,
+    Enum3Value4 = Enum3Value2 + 2,
+    Invalid,
+);
+
+TEST_F(C2ParamTest, EnumUtilsTest) {
+    std::vector<std::pair<C2String, Enum3>> pairs ( { { "value1", Enum3Value1 },
+      { "value2", Enum3Value2 },
+      { "value4", Enum3Value4 },
+      { "invalid", Invalid } });
+    Enum3 e3;
+    FD::namedValuesFor(e3);
+}
+
+TEST_F(C2ParamTest, ParamUtilsTest) {
+    // upper case
+    EXPECT_EQ("yes", C2ParamUtils::camelCaseToDashed("YES"));
+    EXPECT_EQ("no", C2ParamUtils::camelCaseToDashed("NO"));
+    EXPECT_EQ("yes-no", C2ParamUtils::camelCaseToDashed("YES_NO"));
+    EXPECT_EQ("yes-no", C2ParamUtils::camelCaseToDashed("YES__NO"));
+    EXPECT_EQ("a2dp", C2ParamUtils::camelCaseToDashed("A2DP"));
+    EXPECT_EQ("mp2-ts", C2ParamUtils::camelCaseToDashed("MP2_TS"));
+    EXPECT_EQ("block-2d", C2ParamUtils::camelCaseToDashed("BLOCK_2D"));
+    EXPECT_EQ("mpeg-2-ts", C2ParamUtils::camelCaseToDashed("MPEG_2_TS"));
+    EXPECT_EQ("_hidden-value", C2ParamUtils::camelCaseToDashed("_HIDDEN_VALUE"));
+    EXPECT_EQ("__hidden-value2", C2ParamUtils::camelCaseToDashed("__HIDDEN_VALUE2"));
+    EXPECT_EQ("__hidden-value-2", C2ParamUtils::camelCaseToDashed("__HIDDEN_VALUE_2"));
+
+    // camel case
+    EXPECT_EQ("yes", C2ParamUtils::camelCaseToDashed("Yes"));
+    EXPECT_EQ("no", C2ParamUtils::camelCaseToDashed("No"));
+    EXPECT_EQ("yes-no", C2ParamUtils::camelCaseToDashed("YesNo"));
+    EXPECT_EQ("yes-no", C2ParamUtils::camelCaseToDashed("Yes_No"));
+    EXPECT_EQ("mp2-ts", C2ParamUtils::camelCaseToDashed("MP2Ts"));
+    EXPECT_EQ("block-2d", C2ParamUtils::camelCaseToDashed("Block2D"));
+    EXPECT_EQ("mpeg-2-ts", C2ParamUtils::camelCaseToDashed("Mpeg2ts"));
+    EXPECT_EQ("_hidden-value", C2ParamUtils::camelCaseToDashed("_HiddenValue"));
+    EXPECT_EQ("__hidden-value-2", C2ParamUtils::camelCaseToDashed("__HiddenValue2"));
+
+    // mixed case
+    EXPECT_EQ("mp2t-s", C2ParamUtils::camelCaseToDashed("MP2T_s"));
+    EXPECT_EQ("block-2d", C2ParamUtils::camelCaseToDashed("Block_2D"));
+    EXPECT_EQ("block-2-d", C2ParamUtils::camelCaseToDashed("Block2_D"));
+    EXPECT_EQ("mpeg-2-ts", C2ParamUtils::camelCaseToDashed("Mpeg_2ts"));
+    EXPECT_EQ("mpeg-2-ts", C2ParamUtils::camelCaseToDashed("Mpeg_2_TS"));
+    EXPECT_EQ("_hidden-value", C2ParamUtils::camelCaseToDashed("_Hidden__VALUE"));
+    EXPECT_EQ("__hidden-value-2", C2ParamUtils::camelCaseToDashed("__HiddenValue_2"));
+    EXPECT_EQ("_2", C2ParamUtils::camelCaseToDashed("_2"));
+    EXPECT_EQ("__23", C2ParamUtils::camelCaseToDashed("__23"));
+}
+
+TEST_F(C2ParamTest, C2ValueTest) {
+    C2Value val;
+    int32_t i32 = -32;
+    int64_t i64 = -64;
+    uint32_t u32 = 32;
+    uint64_t u64 = 64;
+    float fp = 1.5f;
+
+    EXPECT_EQ(C2Value::NO_INIT, val.type());
+    EXPECT_EQ(false, val.get(&i32));
+    EXPECT_EQ(-32, i32);
+    EXPECT_EQ(false, val.get(&i64));
+    EXPECT_EQ(-64, i64);
+    EXPECT_EQ(false, val.get(&u32));
+    EXPECT_EQ(32u, u32);
+    EXPECT_EQ(false, val.get(&u64));
+    EXPECT_EQ(64u, u64);
+    EXPECT_EQ(false, val.get(&fp));
+    EXPECT_EQ(1.5f, fp);
+
+    val = int32_t(-3216);
+    EXPECT_EQ(C2Value::INT32, val.type());
+    EXPECT_EQ(true, val.get(&i32));
+    EXPECT_EQ(-3216, i32);
+    EXPECT_EQ(false, val.get(&i64));
+    EXPECT_EQ(-64, i64);
+    EXPECT_EQ(false, val.get(&u32));
+    EXPECT_EQ(32u, u32);
+    EXPECT_EQ(false, val.get(&u64));
+    EXPECT_EQ(64u, u64);
+    EXPECT_EQ(false, val.get(&fp));
+    EXPECT_EQ(1.5f, fp);
+
+    val = uint32_t(3216);
+    EXPECT_EQ(C2Value::UINT32, val.type());
+    EXPECT_EQ(false, val.get(&i32));
+    EXPECT_EQ(-3216, i32);
+    EXPECT_EQ(false, val.get(&i64));
+    EXPECT_EQ(-64, i64);
+    EXPECT_EQ(true, val.get(&u32));
+    EXPECT_EQ(3216u, u32);
+    EXPECT_EQ(false, val.get(&u64));
+    EXPECT_EQ(64u, u64);
+    EXPECT_EQ(false, val.get(&fp));
+    EXPECT_EQ(1.5f, fp);
+
+    val = int64_t(-6432);
+    EXPECT_EQ(C2Value::INT64, val.type());
+    EXPECT_EQ(false, val.get(&i32));
+    EXPECT_EQ(-3216, i32);
+    EXPECT_EQ(true, val.get(&i64));
+    EXPECT_EQ(-6432, i64);
+    EXPECT_EQ(false, val.get(&u32));
+    EXPECT_EQ(3216u, u32);
+    EXPECT_EQ(false, val.get(&u64));
+    EXPECT_EQ(64u, u64);
+    EXPECT_EQ(false, val.get(&fp));
+    EXPECT_EQ(1.5f, fp);
+
+    val = uint64_t(6432);
+    EXPECT_EQ(C2Value::UINT64, val.type());
+    EXPECT_EQ(false, val.get(&i32));
+    EXPECT_EQ(-3216, i32);
+    EXPECT_EQ(false, val.get(&i64));
+    EXPECT_EQ(-6432, i64);
+    EXPECT_EQ(false, val.get(&u32));
+    EXPECT_EQ(3216u, u32);
+    EXPECT_EQ(true, val.get(&u64));
+    EXPECT_EQ(6432u, u64);
+    EXPECT_EQ(false, val.get(&fp));
+    EXPECT_EQ(1.5f, fp);
+
+    val = 15.25f;
+    EXPECT_EQ(C2Value::FLOAT, val.type());
+    EXPECT_EQ(false, val.get(&i32));
+    EXPECT_EQ(-3216, i32);
+    EXPECT_EQ(false, val.get(&i64));
+    EXPECT_EQ(-6432, i64);
+    EXPECT_EQ(false, val.get(&u32));
+    EXPECT_EQ(3216u, u32);
+    EXPECT_EQ(false, val.get(&u64));
+    EXPECT_EQ(6432u, u64);
+    EXPECT_EQ(true, val.get(&fp));
+    EXPECT_EQ(15.25f, fp);
+}
+
+} // namespace android
diff --git a/media/libstagefright/codec2/tests/C2_test.cpp b/media/libstagefright/codec2/tests/C2_test.cpp
new file mode 100644
index 0000000..92a3d91
--- /dev/null
+++ b/media/libstagefright/codec2/tests/C2_test.cpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "C2_test"
+
+#include <gtest/gtest.h>
+
+#include <C2.h>
+
+namespace android {
+
+/* ======================================= STATIC TESTS ======================================= */
+
+template<int N>
+struct c2_const_checker
+{
+    inline constexpr static int num() { return N; }
+};
+
+constexpr auto min_i32_i32 = c2_min(int32_t(1), int32_t(2));
+static_assert(std::is_same<decltype(min_i32_i32), const int32_t>::value, "should be int32_t");
+constexpr auto min_i32_i64 = c2_min(int32_t(3), int64_t(2));
+static_assert(std::is_same<decltype(min_i32_i64), const int64_t>::value, "should be int64_t");
+constexpr auto min_i8_i32 = c2_min(int8_t(0xff), int32_t(0xffffffff));
+static_assert(std::is_same<decltype(min_i8_i32), const int32_t>::value, "should be int32_t");
+
+static_assert(c2_const_checker<min_i32_i32>::num() == 1, "should be 1");
+static_assert(c2_const_checker<min_i32_i64>::num() == 2, "should be 2");
+static_assert(c2_const_checker<min_i8_i32>::num() == 0xffffffff, "should be 0xffffffff");
+
+constexpr auto min_u32_u32 = c2_min(uint32_t(1), uint32_t(2));
+static_assert(std::is_same<decltype(min_u32_u32), const uint32_t>::value, "should be uint32_t");
+constexpr auto min_u32_u64 = c2_min(uint32_t(3), uint64_t(2));
+static_assert(std::is_same<decltype(min_u32_u64), const uint32_t>::value, "should be uint32_t");
+constexpr auto min_u32_u8 = c2_min(uint32_t(0xffffffff), uint8_t(0xff));
+static_assert(std::is_same<decltype(min_u32_u8), const uint8_t>::value, "should be uint8_t");
+
+static_assert(c2_const_checker<min_u32_u32>::num() == 1, "should be 1");
+static_assert(c2_const_checker<min_u32_u64>::num() == 2, "should be 2");
+static_assert(c2_const_checker<min_u32_u8>::num() == 0xff, "should be 0xff");
+
+constexpr auto max_i32_i32 = c2_max(int32_t(1), int32_t(2));
+static_assert(std::is_same<decltype(max_i32_i32), const int32_t>::value, "should be int32_t");
+constexpr auto max_i32_i64 = c2_max(int32_t(3), int64_t(2));
+static_assert(std::is_same<decltype(max_i32_i64), const int64_t>::value, "should be int64_t");
+constexpr auto max_i8_i32 = c2_max(int8_t(0xff), int32_t(0xffffffff));
+static_assert(std::is_same<decltype(max_i8_i32), const int32_t>::value, "should be int32_t");
+
+static_assert(c2_const_checker<max_i32_i32>::num() == 2, "should be 2");
+static_assert(c2_const_checker<max_i32_i64>::num() == 3, "should be 3");
+static_assert(c2_const_checker<max_i8_i32>::num() == 0xffffffff, "should be 0xffffffff");
+
+constexpr auto max_u32_u32 = c2_max(uint32_t(1), uint32_t(2));
+static_assert(std::is_same<decltype(max_u32_u32), const uint32_t>::value, "should be uint32_t");
+constexpr auto max_u32_u64 = c2_max(uint32_t(3), uint64_t(2));
+static_assert(std::is_same<decltype(max_u32_u64), const uint64_t>::value, "should be uint64_t");
+constexpr auto max_u32_u8 = c2_max(uint32_t(0x7fffffff), uint8_t(0xff));
+static_assert(std::is_same<decltype(max_u32_u8), const uint32_t>::value, "should be uint32_t");
+
+static_assert(c2_const_checker<max_u32_u32>::num() == 2, "should be 2");
+static_assert(c2_const_checker<max_u32_u64>::num() == 3, "should be 3");
+static_assert(c2_const_checker<max_u32_u8>::num() == 0x7fffffff, "should be 0x7fffffff");
+
+} // namespace android
diff --git a/media/libstagefright/codec2/tests/vndk/C2UtilTest.cpp b/media/libstagefright/codec2/tests/vndk/C2UtilTest.cpp
new file mode 100644
index 0000000..7a1374b
--- /dev/null
+++ b/media/libstagefright/codec2/tests/vndk/C2UtilTest.cpp
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <util/_C2MacroUtils.h>
+
+/** \file
+ * Tests for vndk/util.
+ */
+
+/* --------------------------------------- _C2MacroUtils --------------------------------------- */
+
+static_assert(0 == _C2_ARGC(), "should be 0");
+static_assert(1 == _C2_ARGC(1), "should be 1");
+static_assert(2 == _C2_ARGC(1, 2), "should be 2");
+static_assert(64 == _C2_ARGC(
+        1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
+        26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
+        49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64), "should be 64");
+
+static_assert(0 == _C2_ARGC(,), "should be 0");
+static_assert(1 == _C2_ARGC(1,), "should be 1");
+static_assert(2 == _C2_ARGC(1, 2,), "should be 2");
+static_assert(64 == _C2_ARGC(
+        1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
+        26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
+        49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,), "should be 64");
+
diff --git a/media/libstagefright/codec2/vndk/include/util/C2ParamUtils.h b/media/libstagefright/codec2/vndk/include/util/C2ParamUtils.h
new file mode 100644
index 0000000..edae303
--- /dev/null
+++ b/media/libstagefright/codec2/vndk/include/util/C2ParamUtils.h
@@ -0,0 +1,302 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2UTILS_PARAM_UTILS_H_
+#define C2UTILS_PARAM_UTILS_H_
+
+#include <C2Param.h>
+#include <util/_C2MacroUtils.h>
+
+#include <iostream>
+
+/** \file
+ * Utilities for parameter handling to be used by Codec2 implementations.
+ */
+
+namespace android {
+
+/// \cond INTERNAL
+
+/* ---------------------------- UTILITIES FOR ENUMERATION REFLECTION ---------------------------- */
+
+/**
+ * Utility class that allows ignoring enum value assignment (e.g. both '(_C2EnumConst)kValue = x'
+ * and '(_C2EnumConst)kValue' will eval to kValue.
+ */
+template<typename T>
+class _C2EnumConst {
+public:
+    // implicit conversion from T
+    inline _C2EnumConst(T value) : _mValue(value) {}
+    // implicit conversion to T
+    inline operator T() { return _mValue; }
+    // implicit conversion to C2Value::Primitive
+    inline operator C2Value::Primitive() { return (T)_mValue; }
+    // ignore assignment and return T here to avoid implicit conversion to T later
+    inline T &operator =(T value __unused) { return _mValue; }
+private:
+    T _mValue;
+};
+
+/// mapper to get name of enum
+/// \note this will contain any initialization, which we will remove when converting to lower-case
+#define _C2_GET_ENUM_NAME(x, y) #x
+/// mapper to get value of enum
+#define _C2_GET_ENUM_VALUE(x, type) (_C2EnumConst<type>)x
+
+/// \endcond
+
+#define DEFINE_C2_ENUM_VALUE_AUTO_HELPER(name, type, prefix, ...) \
+template<> C2FieldDescriptor::named_values_type C2FieldDescriptor::namedValuesFor(const name &r __unused) { \
+    return C2ParamUtils::sanitizeEnumValues( \
+            std::vector<C2Value::Primitive> { _C2_MAP(_C2_GET_ENUM_VALUE, type, __VA_ARGS__) }, \
+            { _C2_MAP(_C2_GET_ENUM_NAME, type, __VA_ARGS__) }, \
+            prefix); \
+}
+
+#define DEFINE_C2_ENUM_VALUE_CUSTOM_HELPER(name, type, names, ...) \
+template<> C2FieldDescriptor::named_values_type C2FieldDescriptor::namedValuesFor(const name &r __unused) { \
+    return C2ParamUtils::customEnumValues( \
+            std::vector<std::pair<C2StringLiteral, name>> names); \
+}
+
+
+class C2ParamUtils {
+private:
+    static size_t countLeadingUnderscores(C2StringLiteral a) {
+        size_t i = 0;
+        while (a[i] == '_') {
+            ++i;
+        }
+        return i;
+    }
+
+    static size_t countMatching(C2StringLiteral a, const C2String &b) {
+        for (size_t i = 0; i < b.size(); ++i) {
+            if (!a[i] || a[i] != b[i]) {
+                return i;
+            }
+        }
+        return b.size();
+    }
+
+    // ABCDef => abc-def
+    // ABCD2ef => abcd2-ef // 0
+    // ABCD2Ef => ancd2-ef // -1
+    // AbcDef => abc-def // -1
+    // Abc2Def => abc-2def
+    // Abc2def => abc-2-def
+    // _Yo => _yo
+    // _yo => _yo
+    // C2_yo => c2-yo
+    // C2__yo => c2-yo
+
+    static C2String camelCaseToDashed(C2String name) {
+        enum {
+            kNone = '.',
+            kLower = 'a',
+            kUpper = 'A',
+            kDigit = '1',
+            kDash = '-',
+            kUnderscore = '_',
+        } type = kNone;
+        size_t word_start = 0;
+        for (size_t ix = 0; ix < name.size(); ++ix) {
+            /* std::cout << name.substr(0, word_start) << "|"
+                    << name.substr(word_start, ix - word_start) << "["
+                    << name.substr(ix, 1) << "]" << name.substr(ix + 1)
+                    << ": " << (char)type << std::endl; */
+            if (isupper(name[ix])) {
+                if (type == kLower) {
+                    name.insert(ix++, 1, '-');
+                    word_start = ix;
+                }
+                name[ix] = tolower(name[ix]);
+                type = kUpper;
+            } else if (islower(name[ix])) {
+                if (type == kDigit && ix > 0) {
+                    name.insert(ix++, 1, '-');
+                    word_start = ix;
+                } else if (type == kUpper && ix > word_start + 1) {
+                    name.insert(ix++ - 1, 1, '-');
+                    word_start = ix - 1;
+                }
+                type = kLower;
+            } else if (isdigit(name[ix])) {
+                if (type == kLower) {
+                    name.insert(ix++, 1, '-');
+                    word_start = ix;
+                }
+                type = kDigit;
+            } else if (name[ix] == '_') {
+                if (type == kDash) {
+                    name.erase(ix--, 1);
+                } else if (type != kNone && type != kUnderscore) {
+                    name[ix] = '-';
+                    type = kDash;
+                    word_start = ix + 1;
+                } else {
+                    type = kUnderscore;
+                    word_start = ix + 1;
+                }
+            } else {
+                name.resize(ix);
+            }
+        }
+        // std::cout << "=> " << name << std::endl;
+        return name;
+    }
+
+    static std::vector<C2String> sanitizeEnumValueNames(
+            const std::vector<C2StringLiteral> names,
+            C2StringLiteral _prefix = NULL) {
+        std::vector<C2String> sanitizedNames;
+        C2String prefix;
+        size_t extraUnderscores = 0;
+        bool first = true;
+        if (_prefix) {
+            extraUnderscores = countLeadingUnderscores(_prefix);
+            prefix = _prefix + extraUnderscores;
+            first = false;
+            // std::cout << "prefix:" << prefix << ", underscores:" << extraUnderscores << std::endl;
+        }
+
+        // calculate prefix and minimum leading underscores
+        for (C2StringLiteral s : names) {
+            // std::cout << s << std::endl;
+            size_t underscores = countLeadingUnderscores(s);
+            if (first) {
+                extraUnderscores = underscores;
+                prefix = s + underscores;
+                first = false;
+            } else {
+                size_t matching = countMatching(
+                    s + underscores,
+                    prefix);
+                prefix.resize(matching);
+                extraUnderscores = std::min(underscores, extraUnderscores);
+            }
+            // std::cout << "prefix:" << prefix << ", underscores:" << extraUnderscores << std::endl;
+            if (prefix.size() == 0 && extraUnderscores == 0) {
+                break;
+            }
+        }
+
+        // we swallow the first underscore after upper case prefixes
+        bool upperCasePrefix = true;
+        for (size_t i = 0; i < prefix.size(); ++i) {
+            if (islower(prefix[i])) {
+                upperCasePrefix = false;
+                break;
+            }
+        }
+
+        for (C2StringLiteral s : names) {
+            size_t underscores = countLeadingUnderscores(s);
+            C2String sanitized = C2String(s, underscores - extraUnderscores);
+            sanitized.append(s + prefix.size() + underscores +
+                        (upperCasePrefix && s[prefix.size() + underscores] == '_'));
+            sanitizedNames.push_back(camelCaseToDashed(sanitized));
+        }
+
+        for (C2String s : sanitizedNames) {
+            std::cout << s << std::endl;
+        }
+
+        return sanitizedNames;
+    }
+
+    friend class C2ParamTest_ParamUtilsTest_Test;
+
+public:
+    static std::vector<C2String> getEnumValuesFromString(C2StringLiteral value) {
+        std::vector<C2String> foundNames;
+        size_t pos = 0, len = strlen(value);
+        do {
+            size_t endPos = strcspn(value + pos, " ,=") + pos;
+            if (endPos > pos) {
+                foundNames.emplace_back(value + pos, endPos - pos);
+            }
+            if (value[endPos] && value[endPos] != ',') {
+                endPos += strcspn(value + endPos, ",");
+            }
+            pos = strspn(value + endPos, " ,") + endPos;
+        } while (pos < len);
+        return foundNames;
+    }
+
+    template<typename T>
+    static C2FieldDescriptor::named_values_type sanitizeEnumValues(
+            std::vector<T> values,
+            std::vector<C2StringLiteral> names,
+            C2StringLiteral prefix = NULL) {
+        C2FieldDescriptor::named_values_type namedValues;
+        std::vector<C2String> sanitizedNames = sanitizeEnumValueNames(names, prefix);
+        for (size_t i = 0; i < values.size() && i < sanitizedNames.size(); ++i) {
+            namedValues.emplace_back(sanitizedNames[i], values[i]);
+        }
+        return namedValues;
+    }
+
+    template<typename E>
+    static C2FieldDescriptor::named_values_type customEnumValues(
+            std::vector<std::pair<C2StringLiteral, E>> items) {
+        C2FieldDescriptor::named_values_type namedValues;
+        for (auto &item : items) {
+            namedValues.emplace_back(item.first, item.second);
+        }
+        return namedValues;
+    }
+};
+
+/* ---------------------------- UTILITIES FOR PARAMETER REFLECTION ---------------------------- */
+
+/* ======================== UTILITY TEMPLATES FOR PARAMETER REFLECTION ======================== */
+
+#if 1
+template<typename... Params>
+class C2_HIDE _C2Tuple { };
+
+C2_HIDE
+void addC2Params(std::list<const C2FieldDescriptor> &, _C2Tuple<> *) {
+}
+
+template<typename T, typename... Params>
+C2_HIDE
+void addC2Params(std::list<const C2FieldDescriptor> &fields, _C2Tuple<T, Params...> *)
+{
+    //C2Param::index_t index = T::baseIndex;
+    //(void)index;
+    fields.insert(fields.end(), T::fieldList);
+    addC2Params(fields, (_C2Tuple<Params...> *)nullptr);
+}
+
+template<typename... Params>
+C2_HIDE
+std::list<const C2FieldDescriptor> describeC2Params() {
+    std::list<const C2FieldDescriptor> fields;
+    addC2Params(fields, (_C2Tuple<Params...> *)nullptr);
+    return fields;
+}
+
+#endif
+
+/* ---------------------------- UTILITIES FOR ENUMERATION REFLECTION ---------------------------- */
+
+}  // namespace android
+
+#endif  // C2UTILS_PARAM_UTILS_H_
+
diff --git a/media/libstagefright/codec2/vndk/include/util/_C2MacroUtils.h b/media/libstagefright/codec2/vndk/include/util/_C2MacroUtils.h
new file mode 100644
index 0000000..04e9ba5
--- /dev/null
+++ b/media/libstagefright/codec2/vndk/include/util/_C2MacroUtils.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2UTILS_MACRO_UTILS_H_
+#define C2UTILS_MACRO_UTILS_H_
+
+/** \file
+ * Macro utilities for the utils library used by Codec2 implementations.
+ */
+
+/// \if 0
+
+/* --------------------------------- VARIABLE ARGUMENT COUNTING --------------------------------- */
+
+// remove empty arguments - _C2_ARG() expands to '', while _C2_ARG(x) expands to ', x'
+// _C2_ARGn(...) does the same for n arguments
+#define _C2_ARG(...) , ##__VA_ARGS__
+#define _C2_ARG2(_1, _2) _C2_ARG(_1) _C2_ARG(_2)
+#define _C2_ARG4(_1, _2, _3, _4) _C2_ARG2(_1, _2) _C2_ARG2(_3, _4)
+#define _C2_ARG8(_1, _2, _3, _4, _5, _6, _7, _8) _C2_ARG4(_1, _2, _3, _4) _C2_ARG4(_5, _6, _7, _8)
+#define _C2_ARG16(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16) \
+        _C2_ARG8(_1, _2, _3, _4, _5, _6, _7, _8) _C2_ARG8(_9, _10, _11, _12, _13, _14, _15, _16)
+
+// return the 65th argument
+#define _C2_ARGC_3(_, _0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, \
+        _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, \
+        _33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48, \
+        _49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64, ...) _64
+
+/// \endif
+
+/**
+ * Returns the number of arguments.
+ */
+// We do this by prepending 1 and appending 65 designed values such that the 65th element
+// will be the number of arguments.
+#define _C2_ARGC(...) _C2_ARGC_1(0, ##__VA_ARGS__, \
+        64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, \
+        42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, \
+        20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
+
+/// \if 0
+
+// step 1. remove empty arguments - this is needed to allow trailing comma in enum definitions
+// (NOTE: we don't know which argument will have this trailing comma so we have to try all)
+#define _C2_ARGC_1(_, _0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, \
+        _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, \
+        _33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48, \
+        _49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64, ...) \
+    _C2_ARGC_2(_ _C2_ARG(_0) \
+    _C2_ARG16(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16) \
+    _C2_ARG16(_17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32) \
+    _C2_ARG16(_33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48) \
+    _C2_ARG16(_49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64), \
+    ##__VA_ARGS__)
+
+// step 2. this is needed as removed arguments cannot be passed directly as empty into a macro
+#define _C2_ARGC_2(...) _C2_ARGC_3(__VA_ARGS__)
+
+/// \endif
+
+/* -------------------------------- VARIABLE ARGUMENT CONVERSION -------------------------------- */
+
+/// \if 0
+
+// macros that convert _1, _2, _3, ... to fn(_1, arg), fn(_2, arg), fn(_3, arg), ...
+#define _C2_MAP_64(fn, arg, head, ...) fn(head, arg), _C2_MAP_63(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_63(fn, arg, head, ...) fn(head, arg), _C2_MAP_62(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_62(fn, arg, head, ...) fn(head, arg), _C2_MAP_61(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_61(fn, arg, head, ...) fn(head, arg), _C2_MAP_60(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_60(fn, arg, head, ...) fn(head, arg), _C2_MAP_59(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_59(fn, arg, head, ...) fn(head, arg), _C2_MAP_58(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_58(fn, arg, head, ...) fn(head, arg), _C2_MAP_57(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_57(fn, arg, head, ...) fn(head, arg), _C2_MAP_56(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_56(fn, arg, head, ...) fn(head, arg), _C2_MAP_55(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_55(fn, arg, head, ...) fn(head, arg), _C2_MAP_54(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_54(fn, arg, head, ...) fn(head, arg), _C2_MAP_53(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_53(fn, arg, head, ...) fn(head, arg), _C2_MAP_52(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_52(fn, arg, head, ...) fn(head, arg), _C2_MAP_51(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_51(fn, arg, head, ...) fn(head, arg), _C2_MAP_50(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_50(fn, arg, head, ...) fn(head, arg), _C2_MAP_49(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_49(fn, arg, head, ...) fn(head, arg), _C2_MAP_48(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_48(fn, arg, head, ...) fn(head, arg), _C2_MAP_47(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_47(fn, arg, head, ...) fn(head, arg), _C2_MAP_46(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_46(fn, arg, head, ...) fn(head, arg), _C2_MAP_45(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_45(fn, arg, head, ...) fn(head, arg), _C2_MAP_44(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_44(fn, arg, head, ...) fn(head, arg), _C2_MAP_43(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_43(fn, arg, head, ...) fn(head, arg), _C2_MAP_42(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_42(fn, arg, head, ...) fn(head, arg), _C2_MAP_41(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_41(fn, arg, head, ...) fn(head, arg), _C2_MAP_40(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_40(fn, arg, head, ...) fn(head, arg), _C2_MAP_39(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_39(fn, arg, head, ...) fn(head, arg), _C2_MAP_38(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_38(fn, arg, head, ...) fn(head, arg), _C2_MAP_37(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_37(fn, arg, head, ...) fn(head, arg), _C2_MAP_36(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_36(fn, arg, head, ...) fn(head, arg), _C2_MAP_35(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_35(fn, arg, head, ...) fn(head, arg), _C2_MAP_34(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_34(fn, arg, head, ...) fn(head, arg), _C2_MAP_33(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_33(fn, arg, head, ...) fn(head, arg), _C2_MAP_32(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_32(fn, arg, head, ...) fn(head, arg), _C2_MAP_31(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_31(fn, arg, head, ...) fn(head, arg), _C2_MAP_30(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_30(fn, arg, head, ...) fn(head, arg), _C2_MAP_29(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_29(fn, arg, head, ...) fn(head, arg), _C2_MAP_28(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_28(fn, arg, head, ...) fn(head, arg), _C2_MAP_27(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_27(fn, arg, head, ...) fn(head, arg), _C2_MAP_26(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_26(fn, arg, head, ...) fn(head, arg), _C2_MAP_25(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_25(fn, arg, head, ...) fn(head, arg), _C2_MAP_24(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_24(fn, arg, head, ...) fn(head, arg), _C2_MAP_23(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_23(fn, arg, head, ...) fn(head, arg), _C2_MAP_22(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_22(fn, arg, head, ...) fn(head, arg), _C2_MAP_21(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_21(fn, arg, head, ...) fn(head, arg), _C2_MAP_20(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_20(fn, arg, head, ...) fn(head, arg), _C2_MAP_19(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_19(fn, arg, head, ...) fn(head, arg), _C2_MAP_18(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_18(fn, arg, head, ...) fn(head, arg), _C2_MAP_17(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_17(fn, arg, head, ...) fn(head, arg), _C2_MAP_16(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_16(fn, arg, head, ...) fn(head, arg), _C2_MAP_15(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_15(fn, arg, head, ...) fn(head, arg), _C2_MAP_14(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_14(fn, arg, head, ...) fn(head, arg), _C2_MAP_13(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_13(fn, arg, head, ...) fn(head, arg), _C2_MAP_12(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_12(fn, arg, head, ...) fn(head, arg), _C2_MAP_11(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_11(fn, arg, head, ...) fn(head, arg), _C2_MAP_10(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_10(fn, arg, head, ...) fn(head, arg), _C2_MAP_9(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_9(fn, arg, head, ...) fn(head, arg), _C2_MAP_8(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_8(fn, arg, head, ...) fn(head, arg), _C2_MAP_7(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_7(fn, arg, head, ...) fn(head, arg), _C2_MAP_6(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_6(fn, arg, head, ...) fn(head, arg), _C2_MAP_5(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_5(fn, arg, head, ...) fn(head, arg), _C2_MAP_4(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_4(fn, arg, head, ...) fn(head, arg), _C2_MAP_3(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_3(fn, arg, head, ...) fn(head, arg), _C2_MAP_2(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_2(fn, arg, head, ...) fn(head, arg), _C2_MAP_1(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_1(fn, arg, head, ...) fn(head, arg)
+
+/// \endif
+
+/**
+ * Maps each argument using another macro x -> fn(x, arg)
+ */
+// use wrapper to call the proper mapper based on the number of arguments
+#define _C2_MAP(fn, arg, ...) _C2_MAP__(_C2_ARGC(__VA_ARGS__), fn, arg, ##__VA_ARGS__)
+
+/// \if 0
+
+// evaluate _n so it becomes a number
+#define _C2_MAP__(_n, fn, arg, ...) _C2_MAP_(_n, fn, arg, __VA_ARGS__)
+// call the proper mapper
+#define _C2_MAP_(_n, fn, arg, ...) _C2_MAP_##_n (fn, arg, __VA_ARGS__)
+
+/// \endif
+
+#endif  // C2UTILS_MACRO_UTILS_H_
diff --git a/media/libstagefright/codecs/aacdec/Android.mk b/media/libstagefright/codecs/aacdec/Android.mk
index 84ea708..29c0f33 100644
--- a/media/libstagefright/codecs/aacdec/Android.mk
+++ b/media/libstagefright/codecs/aacdec/Android.mk
@@ -19,8 +19,8 @@
 LOCAL_CFLAGS :=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_STATIC_LIBRARIES := libFraunhoferAAC
 
diff --git a/media/libstagefright/codecs/aacdec/SoftAAC2.cpp b/media/libstagefright/codecs/aacdec/SoftAAC2.cpp
index ff76bc8..9fbdb72 100644
--- a/media/libstagefright/codecs/aacdec/SoftAAC2.cpp
+++ b/media/libstagefright/codecs/aacdec/SoftAAC2.cpp
@@ -36,7 +36,7 @@
 #define DRC_DEFAULT_MOBILE_DRC_CUT   127 /* maximum compression of dynamic range for mobile conf */
 #define DRC_DEFAULT_MOBILE_DRC_BOOST 127 /* maximum compression of dynamic range for mobile conf */
 #define DRC_DEFAULT_MOBILE_DRC_HEAVY 1   /* switch for heavy compression for mobile conf */
-#define DRC_DEFAULT_MOBILE_ENC_LEVEL -1 /* encoder target level; -1 => the value is unknown, otherwise dB step value (e.g. 64 for -16 dB) */
+#define DRC_DEFAULT_MOBILE_ENC_LEVEL (-1) /* encoder target level; -1 => the value is unknown, otherwise dB step value (e.g. 64 for -16 dB) */
 #define MAX_CHANNEL_COUNT            8  /* maximum number of audio channels that can be decoded */
 // names of properties that can be used to override the default DRC settings
 #define PROP_DRC_OVERRIDE_REF_LEVEL  "aac_drc_reference_level"
@@ -62,6 +62,7 @@
     OMX_AUDIO_AACObjectHE_PS,
     OMX_AUDIO_AACObjectLD,
     OMX_AUDIO_AACObjectELD,
+    OMX_AUDIO_AACObjectER_Scalable,
 };
 
 SoftAAC2::SoftAAC2(
diff --git a/media/libstagefright/codecs/aacenc/Android.mk b/media/libstagefright/codecs/aacenc/Android.mk
index 266f01b..527687b 100644
--- a/media/libstagefright/codecs/aacenc/Android.mk
+++ b/media/libstagefright/codecs/aacenc/Android.mk
@@ -64,7 +64,10 @@
 
 LOCAL_STATIC_LIBRARIES :=
 
-LOCAL_SHARED_LIBRARIES :=
+# libstagefright links this static library, so it probably isn't appropriate to
+# link libstagefright.  However, this library includes libstagefright headers,
+# and needs libbinder to be able to do so correctly.
+LOCAL_SHARED_LIBRARIES := libbinder
 
 LOCAL_C_INCLUDES := \
 	frameworks/av/include \
@@ -75,7 +78,6 @@
 	$(LOCAL_PATH)/basic_op
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
 
 include $(BUILD_STATIC_LIBRARY)
@@ -103,8 +105,8 @@
   LOCAL_CFLAGS :=
 
   LOCAL_CFLAGS += -Werror
-  LOCAL_CLANG := true
-  LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+  LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+  LOCAL_SANITIZE_DIAG := cfi
 
   LOCAL_STATIC_LIBRARIES := libFraunhoferAAC
 
@@ -129,8 +131,8 @@
   LOCAL_CFLAGS := -DOSCL_IMPORT_REF=
 
   LOCAL_CFLAGS += -Werror
-  LOCAL_CLANG := true
-  LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+  LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+  LOCAL_SANITIZE_DIAG := cfi
 
   LOCAL_STATIC_LIBRARIES := \
           libstagefright_aacenc
diff --git a/media/libstagefright/codecs/aacenc/SoftAACEncoder.cpp b/media/libstagefright/codecs/aacenc/SoftAACEncoder.cpp
index 96bbb85..67c31af 100644
--- a/media/libstagefright/codecs/aacenc/SoftAACEncoder.cpp
+++ b/media/libstagefright/codecs/aacenc/SoftAACEncoder.cpp
@@ -266,10 +266,6 @@
                 return OMX_ErrorUndefined;
             }
 
-            if (formatParams->nIndex > 0) {
-                return OMX_ErrorNoMore;
-            }
-
             if ((formatParams->nPortIndex == 0
                         && formatParams->eEncoding != OMX_AUDIO_CodingPCM)
                 || (formatParams->nPortIndex == 1
diff --git a/media/libstagefright/codecs/aacenc/SoftAACEncoder2.cpp b/media/libstagefright/codecs/aacenc/SoftAACEncoder2.cpp
index 44415e2..96e668e 100644
--- a/media/libstagefright/codecs/aacenc/SoftAACEncoder2.cpp
+++ b/media/libstagefright/codecs/aacenc/SoftAACEncoder2.cpp
@@ -305,10 +305,6 @@
                 return OMX_ErrorUndefined;
             }
 
-            if (formatParams->nIndex > 0) {
-                return OMX_ErrorNoMore;
-            }
-
             if ((formatParams->nPortIndex == 0
                         && formatParams->eEncoding != OMX_AUDIO_CodingPCM)
                 || (formatParams->nPortIndex == 1
diff --git a/media/libstagefright/codecs/aacenc/basic_op/oper_32b.c b/media/libstagefright/codecs/aacenc/basic_op/oper_32b.c
index 4fd16a1..78f032b 100644
--- a/media/libstagefright/codecs/aacenc/basic_op/oper_32b.c
+++ b/media/libstagefright/codecs/aacenc/basic_op/oper_32b.c
@@ -234,10 +234,10 @@
 }
 
 #define step(shift) \
-    if ((0x40000000l >> shift) + root <= value)       \
+    if ((0x40000000l >> (shift)) + root <= value)       \
     {                                                 \
-        value -= (0x40000000l >> shift) + root;       \
-        root = (root >> 1) | (0x40000000l >> shift);  \
+        value -= (0x40000000l >> (shift)) + root;       \
+        root = (root >> 1) | (0x40000000l >> (shift));  \
     } else {                                          \
         root = root >> 1;                             \
     }
diff --git a/media/libstagefright/codecs/aacenc/basic_op/typedefs.h b/media/libstagefright/codecs/aacenc/basic_op/typedefs.h
index 6059237..80d350d 100644
--- a/media/libstagefright/codecs/aacenc/basic_op/typedefs.h
+++ b/media/libstagefright/codecs/aacenc/basic_op/typedefs.h
@@ -89,11 +89,11 @@
 #endif
 
 #ifndef min
-#define min(a,b) ( a < b ? a : b)
+#define min(a,b) ( (a) < (b) ? (a) : (b))
 #endif
 
 #ifndef max
-#define max(a,b) ( a > b ? a : b)
+#define max(a,b) ( (a) > (b) ? (a) : (b))
 #endif
 
 #ifdef ARM_INASM
diff --git a/media/libstagefright/codecs/aacenc/inc/psy_const.h b/media/libstagefright/codecs/aacenc/inc/psy_const.h
index 19fb9b2..0b9f8c3 100644
--- a/media/libstagefright/codecs/aacenc/inc/psy_const.h
+++ b/media/libstagefright/codecs/aacenc/inc/psy_const.h
@@ -73,7 +73,7 @@
 #define TRANSFORM_OFFSET_LONG    0
 #define TRANSFORM_OFFSET_SHORT   448
 
-#define LOG_NORM_PCM          -15
+#define LOG_NORM_PCM          (-15)
 
 #define NUM_SAMPLE_RATES	12
 
diff --git a/media/libstagefright/codecs/aacenc/src/bit_cnt.c b/media/libstagefright/codecs/aacenc/src/bit_cnt.c
index 9fe511c..65b035e 100644
--- a/media/libstagefright/codecs/aacenc/src/bit_cnt.c
+++ b/media/libstagefright/codecs/aacenc/src/bit_cnt.c
@@ -23,10 +23,10 @@
 #include "bit_cnt.h"
 #include "aac_rom.h"
 
-#define HI_LTAB(a) (a>>8)
-#define LO_LTAB(a) (a & 0xff)
+#define HI_LTAB(a) ((a)>>8)
+#define LO_LTAB(a) ((a) & 0xff)
 
-#define EXPAND(a)  ((((Word32)(a&0xff00)) << 8)|(Word32)(a&0xff))
+#define EXPAND(a)  ((((Word32)((a)&0xff00)) << 8)|(Word32)((a)&0xff))
 
 
 /*****************************************************************************
diff --git a/media/libstagefright/codecs/aacenc/src/dyn_bits.c b/media/libstagefright/codecs/aacenc/src/dyn_bits.c
index 4d763d0..e75b48f 100644
--- a/media/libstagefright/codecs/aacenc/src/dyn_bits.c
+++ b/media/libstagefright/codecs/aacenc/src/dyn_bits.c
@@ -20,6 +20,10 @@
 
 *******************************************************************************/
 
+#define LOG_TAG "NoiselessCoder"
+
+#include "log/log.h"
+
 #include "aac_rom.h"
 #include "dyn_bits.h"
 #include "bit_cnt.h"
@@ -296,6 +300,9 @@
     case SHORT_WINDOW:
       sideInfoTab = sideInfoTabShort;
       break;
+    default:
+      ALOGE("invalid blockType: %d", blockType);
+      return;
   }
 
 
diff --git a/media/libstagefright/codecs/aacenc/src/transform.c b/media/libstagefright/codecs/aacenc/src/transform.c
index 0080810..5de2b96 100644
--- a/media/libstagefright/codecs/aacenc/src/transform.c
+++ b/media/libstagefright/codecs/aacenc/src/transform.c
@@ -30,8 +30,8 @@
 #define SQRT1_2 0x5a82799a	/* sqrt(1/2) in Q31 */
 #define swap2(p0,p1) \
 	t = p0; t1 = *(&(p0)+1);	\
-	p0 = p1; *(&(p0)+1) = *(&(p1)+1);	\
-	p1 = t; *(&(p1)+1) = t1
+	(p0) = p1; *(&(p0)+1) = *(&(p1)+1);	\
+	(p1) = t; *(&(p1)+1) = t1
 
 /*********************************************************************************
 *
diff --git a/media/libstagefright/codecs/amrnb/common/Android.mk b/media/libstagefright/codecs/amrnb/common/Android.mk
index 15220a4..0bb5724 100644
--- a/media/libstagefright/codecs/amrnb/common/Android.mk
+++ b/media/libstagefright/codecs/amrnb/common/Android.mk
@@ -68,7 +68,6 @@
         -D"OSCL_UNUSED_ARG(x)=(void)(x)" -DOSCL_IMPORT_REF= -DOSCL_EXPORT_REF=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #addressing b/25409744
 #LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
 
diff --git a/media/libstagefright/codecs/amrnb/common/src/az_lsp.cpp b/media/libstagefright/codecs/amrnb/common/src/az_lsp.cpp
index 459c3c3..f3098f5 100644
--- a/media/libstagefright/codecs/amrnb/common/src/az_lsp.cpp
+++ b/media/libstagefright/codecs/amrnb/common/src/az_lsp.cpp
@@ -103,7 +103,7 @@
 ; Include all pre-processor statements here. Include conditional
 ; compile variables also.
 ----------------------------------------------------------------------------*/
-#define NC   M/2                  /* M = LPC order, NC = M/2 */
+#define NC   (M/2)                  /* M = LPC order, NC = M/2 */
 
 /*----------------------------------------------------------------------------
 ; LOCAL FUNCTION DEFINITIONS
diff --git a/media/libstagefright/codecs/amrnb/common/src/gc_pred.cpp b/media/libstagefright/codecs/amrnb/common/src/gc_pred.cpp
index 1c8a700..731dc52 100644
--- a/media/libstagefright/codecs/amrnb/common/src/gc_pred.cpp
+++ b/media/libstagefright/codecs/amrnb/common/src/gc_pred.cpp
@@ -69,8 +69,8 @@
 #define MEAN_ENER_MR122  783741L  /* 36/(20*log10(2)) (Q17) */
 
 /* minimum quantized energy: -14 dB */
-#define MIN_ENERGY       -14336       /* 14                 Q10 */
-#define MIN_ENERGY_MR122  -2381       /* 14 / (20*log10(2)) Q10 */
+#define MIN_ENERGY       (-14336)       /* 14                 Q10 */
+#define MIN_ENERGY_MR122  (-2381)       /* 14 / (20*log10(2)) Q10 */
 
 /*----------------------------------------------------------------------------
 ; LOCAL FUNCTION DEFINITIONS
diff --git a/media/libstagefright/codecs/amrnb/dec/Android.mk b/media/libstagefright/codecs/amrnb/dec/Android.mk
index 7967ec3..3959b80 100644
--- a/media/libstagefright/codecs/amrnb/dec/Android.mk
+++ b/media/libstagefright/codecs/amrnb/dec/Android.mk
@@ -48,7 +48,6 @@
         -D"OSCL_UNUSED_ARG(x)=(void)(x)" -DOSCL_IMPORT_REF=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE := libstagefright_amrnbdec
@@ -73,7 +72,6 @@
 LOCAL_CFLAGS := -DOSCL_IMPORT_REF=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_STATIC_LIBRARIES := \
@@ -104,7 +102,6 @@
 LOCAL_SHARED_LIBRARIES := \
         libstagefright_amrnb_common libaudioutils liblog
 
-LOCAL_CLANG := true
 #LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE := libstagefright_amrnbdec_test
diff --git a/media/libstagefright/codecs/amrnb/dec/SoftAMR.cpp b/media/libstagefright/codecs/amrnb/dec/SoftAMR.cpp
index edf648d..7553153 100644
--- a/media/libstagefright/codecs/amrnb/dec/SoftAMR.cpp
+++ b/media/libstagefright/codecs/amrnb/dec/SoftAMR.cpp
@@ -309,7 +309,7 @@
         BufferInfo *outInfo = *outQueue.begin();
         OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
 
-        if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
+        if ((inHeader->nFlags & OMX_BUFFERFLAG_EOS) && inHeader->nFilledLen == 0) {
             inQueue.erase(inQueue.begin());
             inInfo->mOwnedByUs = false;
             notifyEmptyBufferDone(inHeader);
@@ -471,7 +471,7 @@
             mNumSamplesOutput += kNumSamplesPerFrameWB;
         }
 
-        if (inHeader->nFilledLen == 0) {
+        if (inHeader->nFilledLen == 0 && (inHeader->nFlags & OMX_BUFFERFLAG_EOS) == 0) {
             inInfo->mOwnedByUs = false;
             inQueue.erase(inQueue.begin());
             inInfo = NULL;
diff --git a/media/libstagefright/codecs/amrnb/dec/src/a_refl.cpp b/media/libstagefright/codecs/amrnb/dec/src/a_refl.cpp
index 696d2da..5a47510 100644
--- a/media/libstagefright/codecs/amrnb/dec/src/a_refl.cpp
+++ b/media/libstagefright/codecs/amrnb/dec/src/a_refl.cpp
@@ -59,6 +59,7 @@
 /*----------------------------------------------------------------------------
 ; INCLUDES
 ----------------------------------------------------------------------------*/
+#define LOG_TAG "a_refl"
 #include <log/log.h>
 
 #include "a_refl.h"
diff --git a/media/libstagefright/codecs/amrnb/enc/Android.mk b/media/libstagefright/codecs/amrnb/enc/Android.mk
index f8a41af..af1efb9 100644
--- a/media/libstagefright/codecs/amrnb/enc/Android.mk
+++ b/media/libstagefright/codecs/amrnb/enc/Android.mk
@@ -70,7 +70,6 @@
         -D"OSCL_UNUSED_ARG(x)=(void)(x)"
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #addressing b/25409744
 #LOCAL_SANITIZE := signed-integer-overflow
 
@@ -94,7 +93,6 @@
         $(LOCAL_PATH)/../common
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #addressing b/25409744
 #LOCAL_SANITIZE := signed-integer-overflow
 
@@ -127,7 +125,6 @@
 LOCAL_SHARED_LIBRARIES := \
     libstagefright_amrnb_common
 
-LOCAL_CLANG := true
 #addressing b/25409744
 #LOCAL_SANITIZE := signed-integer-overflow
 
diff --git a/media/libstagefright/codecs/amrnb/enc/SoftAMRNBEncoder.cpp b/media/libstagefright/codecs/amrnb/enc/SoftAMRNBEncoder.cpp
index aaa6731..f97c44f 100644
--- a/media/libstagefright/codecs/amrnb/enc/SoftAMRNBEncoder.cpp
+++ b/media/libstagefright/codecs/amrnb/enc/SoftAMRNBEncoder.cpp
@@ -226,10 +226,6 @@
                 return OMX_ErrorUndefined;
             }
 
-            if (formatParams->nIndex > 0) {
-                return OMX_ErrorNoMore;
-            }
-
             if ((formatParams->nPortIndex == 0
                         && formatParams->eEncoding != OMX_AUDIO_CodingPCM)
                 || (formatParams->nPortIndex == 1
diff --git a/media/libstagefright/codecs/amrwb/Android.mk b/media/libstagefright/codecs/amrwb/Android.mk
index 1649c4a..73a1751 100644
--- a/media/libstagefright/codecs/amrwb/Android.mk
+++ b/media/libstagefright/codecs/amrwb/Android.mk
@@ -51,7 +51,6 @@
         -D"OSCL_UNUSED_ARG(x)=(void)(x)" -DOSCL_IMPORT_REF=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE := libstagefright_amrwbdec
@@ -74,7 +73,6 @@
 LOCAL_SHARED_LIBRARIES := \
         libaudioutils
 
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE := libstagefright_amrwbdec_test
diff --git a/media/libstagefright/codecs/amrwb/src/dtx.h b/media/libstagefright/codecs/amrwb/src/dtx.h
index a81f089..cf686a0 100644
--- a/media/libstagefright/codecs/amrwb/src/dtx.h
+++ b/media/libstagefright/codecs/amrwb/src/dtx.h
@@ -77,7 +77,7 @@
 #define DTX_HANG_CONST 7                   /* yields eight frames of SP HANGOVER  */
 #define INV_MED_THRESH 14564
 #define ISF_GAP  128                       /* 50 */
-#define ONE_MINUS_ISF_GAP 16384 - ISF_GAP
+#define ONE_MINUS_ISF_GAP (16384 - ISF_GAP)
 
 #define ISF_GAP   128
 #define ISF_DITH_GAP   448
diff --git a/media/libstagefright/codecs/amrwb/src/homing_amr_wb_dec.cpp b/media/libstagefright/codecs/amrwb/src/homing_amr_wb_dec.cpp
index f032a08..dde3e43 100644
--- a/media/libstagefright/codecs/amrwb/src/homing_amr_wb_dec.cpp
+++ b/media/libstagefright/codecs/amrwb/src/homing_amr_wb_dec.cpp
@@ -105,15 +105,15 @@
 #define NUM_OF_SPMODES 9
 
 #define PRML 15
-#define PRMN_7k NBBITS_7k/PRML + 1
-#define PRMN_9k NBBITS_9k/PRML + 1
-#define PRMN_12k NBBITS_12k/PRML + 1
-#define PRMN_14k NBBITS_14k/PRML + 1
-#define PRMN_16k NBBITS_16k/PRML + 1
-#define PRMN_18k NBBITS_18k/PRML + 1
-#define PRMN_20k NBBITS_20k/PRML + 1
-#define PRMN_23k NBBITS_23k/PRML + 1
-#define PRMN_24k NBBITS_24k/PRML + 1
+#define PRMN_7k (NBBITS_7k/PRML + 1)
+#define PRMN_9k (NBBITS_9k/PRML + 1)
+#define PRMN_12k (NBBITS_12k/PRML + 1)
+#define PRMN_14k (NBBITS_14k/PRML + 1)
+#define PRMN_16k (NBBITS_16k/PRML + 1)
+#define PRMN_18k (NBBITS_18k/PRML + 1)
+#define PRMN_20k (NBBITS_20k/PRML + 1)
+#define PRMN_23k (NBBITS_23k/PRML + 1)
+#define PRMN_24k (NBBITS_24k/PRML + 1)
 
 /*----------------------------------------------------------------------------
 ; LOCAL FUNCTION DEFINITIONS
diff --git a/media/libstagefright/codecs/amrwb/src/pvamrwb_math_op.h b/media/libstagefright/codecs/amrwb/src/pvamrwb_math_op.h
index 8951e5c..2143c9a 100644
--- a/media/libstagefright/codecs/amrwb/src/pvamrwb_math_op.h
+++ b/media/libstagefright/codecs/amrwb/src/pvamrwb_math_op.h
@@ -119,8 +119,8 @@
 #define norm_s( x)    (normalize_amr_wb(  x) - 16)
 
 
-#define extract_h( x)    (int16)(x>>16)
-#define L_deposit_h( x)    (int32)(x<<16)
+#define extract_h( x)    (int16)((x)>>16)
+#define L_deposit_h( x)    (int32)((x)<<16)
 
 
 #ifdef __cplusplus
diff --git a/media/libstagefright/codecs/amrwb/src/pvamrwbdecoder_basic_op.h b/media/libstagefright/codecs/amrwb/src/pvamrwbdecoder_basic_op.h
index df239d2..88ff9bc 100644
--- a/media/libstagefright/codecs/amrwb/src/pvamrwbdecoder_basic_op.h
+++ b/media/libstagefright/codecs/amrwb/src/pvamrwbdecoder_basic_op.h
@@ -56,8 +56,8 @@
 #define MAX_32 (int32)0x7fffffffL
 #define MIN_32 (int32)0x80000000L
 
-#define MAX_16 (int16)+32767    /* 0x7fff */
-#define MIN_16 (int16)-32768    /* 0x8000 */
+#define MAX_16 ((int16)+32767)    /* 0x7fff */
+#define MIN_16 ((int16)-32768)    /* 0x8000 */
 
 
 
diff --git a/media/libstagefright/codecs/amrwb/src/pvamrwbdecoder_cnst.h b/media/libstagefright/codecs/amrwb/src/pvamrwbdecoder_cnst.h
index ecf1bf3..3981ce3 100644
--- a/media/libstagefright/codecs/amrwb/src/pvamrwbdecoder_cnst.h
+++ b/media/libstagefright/codecs/amrwb/src/pvamrwbdecoder_cnst.h
@@ -130,7 +130,7 @@
 
 #define EHF_MASK (int16)0x0008            /* homing frame pattern                       */
 
-#define BIT_0     (int16)-127
+#define BIT_0     ((int16)-127)
 #define BIT_1     (int16)127
 #define BIT_0_ITU (int16)0x007F
 #define BIT_1_ITU (int16)0x0081
diff --git a/media/libstagefright/codecs/amrwbenc/Android.mk b/media/libstagefright/codecs/amrwbenc/Android.mk
index 026006e..262f6c8 100644
--- a/media/libstagefright/codecs/amrwbenc/Android.mk
+++ b/media/libstagefright/codecs/amrwbenc/Android.mk
@@ -102,7 +102,6 @@
 	$(LOCAL_PATH)/inc
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #LOCAL_SANITIZE := signed-integer-overflow
 
 include $(BUILD_STATIC_LIBRARY)
@@ -120,8 +119,8 @@
 	frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_STATIC_LIBRARIES := \
         libstagefright_amrwbenc
diff --git a/media/libstagefright/codecs/amrwbenc/SampleCode/AMRWB_E_SAMPLE.c b/media/libstagefright/codecs/amrwbenc/SampleCode/AMRWB_E_SAMPLE.c
index 0cb0097..7c094f3 100644
--- a/media/libstagefright/codecs/amrwbenc/SampleCode/AMRWB_E_SAMPLE.c
+++ b/media/libstagefright/codecs/amrwbenc/SampleCode/AMRWB_E_SAMPLE.c
@@ -90,7 +90,7 @@
 	VO_AUDIO_CODECAPI       AudioAPI;
 	VO_MEM_OPERATOR         moper;
 	VO_CODEC_INIT_USERDATA  useData;
-	VO_HANDLE               hCodec;
+	VO_HANDLE               hCodec = NULL;
 	VO_CODECBUFFER          inData;
 	VO_CODECBUFFER          outData;
 	VO_AUDIO_OUTPUTINFO     outFormat;
@@ -211,7 +211,7 @@
 			if(returnCode == 0)
 			{
 				framenum++;
-				printf(" Frames processed: %hd\r", framenum);
+				printf(" Frames processed: %d\r", framenum);
 				if(framenum == 1)
 				{
 					fwrite(OutputBuf, 1, outData.Length + size1, fdst);
diff --git a/media/libstagefright/codecs/amrwbenc/SoftAMRWBEncoder.cpp b/media/libstagefright/codecs/amrwbenc/SoftAMRWBEncoder.cpp
index 9d50c4e..f05f552 100644
--- a/media/libstagefright/codecs/amrwbenc/SoftAMRWBEncoder.cpp
+++ b/media/libstagefright/codecs/amrwbenc/SoftAMRWBEncoder.cpp
@@ -264,10 +264,6 @@
                 return OMX_ErrorUndefined;
             }
 
-            if (formatParams->nIndex > 0) {
-                return OMX_ErrorNoMore;
-            }
-
             if ((formatParams->nPortIndex == 0
                         && formatParams->eEncoding != OMX_AUDIO_CodingPCM)
                 || (formatParams->nPortIndex == 1
diff --git a/media/libstagefright/codecs/amrwbenc/inc/basic_op.h b/media/libstagefright/codecs/amrwbenc/inc/basic_op.h
index 8165f69..80ad7f1 100644
--- a/media/libstagefright/codecs/amrwbenc/inc/basic_op.h
+++ b/media/libstagefright/codecs/amrwbenc/inc/basic_op.h
@@ -25,8 +25,8 @@
 #define MAX_32 (Word32)0x7fffffffL
 #define MIN_32 (Word32)0x80000000L
 
-#define MAX_16 (Word16)+32767   /* 0x7fff */
-#define MIN_16 (Word16)-32768   /* 0x8000 */
+#define MAX_16 ((Word16)+32767)   /* 0x7fff */
+#define MIN_16 ((Word16)-32768)   /* 0x8000 */
 
 
 #define  static_vo  static __inline
@@ -41,23 +41,23 @@
 #define L_negate(L_var1) (((L_var1) == (MIN_32)) ? (MAX_32) : (-(L_var1)))                 /* Long negate,     2*/
 
 
-#define extract_h(a)            ((Word16)(a >> 16))
-#define extract_l(x)                (Word16)((x))
-#define add1(a,b)           (a + b)
-#define vo_L_msu(a,b,c)         ( a - (( b * c ) << 1) )
+#define extract_h(a)            ((Word16)((a) >> 16))
+#define extract_l(x)            (Word16)((x))
+#define add1(a,b)               ((a) + (b))
+#define vo_L_msu(a,b,c)         ((a) - (((b) * (c)) << 1))
 #define vo_mult32(a, b)         ((a) * (b))
-#define vo_mult(a,b)            (( a * b ) >> 15 )
-#define vo_L_mult(a,b)              (((a) * (b)) << 1)
-#define vo_shr_r(var1, var2)        ((var1+((Word16)(1L<<(var2-1))))>>var2)
-#define vo_sub(a,b)         (a - b)
+#define vo_mult(a,b)            (((a) * (b)) >> 15)
+#define vo_L_mult(a,b)          (((a) * (b)) << 1)
+#define vo_shr_r(var1, var2)    (((var1)+((Word16)(1L<<((var2)-1))))>>(var2))
+#define vo_sub(a,b)             ((a) - (b))
 #define vo_L_deposit_h(a)       ((Word32)((a) << 16))
-#define vo_round(a)         ((((a) >> 15) + 1) >> 1)
+#define vo_round(a)             ((((a) >> 15) + 1) >> 1)
 #define vo_extract_l(a)         ((Word16)(a))
-#define vo_L_add(a,b)           (a + b)
-#define vo_L_sub(a,b)           (a - b)
-#define vo_mult_r(a,b)          (((( a * b ) >> 14) + 1 ) >> 1 )
-#define vo_negate(a)                (-a)
-#define vo_L_shr_r(L_var1, var2)        ((L_var1+((Word32)(1L<<(var2-1))))>>var2)
+#define vo_L_add(a,b)           ((a) + (b))
+#define vo_L_sub(a,b)           ((a) - (b))
+#define vo_mult_r(a,b)          (((( (a) * (b) ) >> 14) + 1 ) >> 1 )
+#define vo_negate(a)            (-(a))
+#define vo_L_shr_r(L_var1, var2) (((L_var1)+((Word32)(1L<<((var2)-1))))>>(var2))
 
 
 /*___________________________________________________________________________
@@ -765,7 +765,7 @@
                 break;
             }
         }
-        L_var1 <<=1 ;
+        L_var1 *= 2 ;
         L_var_out = L_var1;
     }
     return (L_var_out);
diff --git a/media/libstagefright/codecs/amrwbenc/inc/bits.h b/media/libstagefright/codecs/amrwbenc/inc/bits.h
index ff9c0c1..57e71f7 100644
--- a/media/libstagefright/codecs/amrwbenc/inc/bits.h
+++ b/media/libstagefright/codecs/amrwbenc/inc/bits.h
@@ -42,7 +42,7 @@
 #define NBBITS_SID    35
 #define NB_BITS_MAX   NBBITS_24k
 
-#define BIT_0     (Word16)-127
+#define BIT_0     ((Word16)-127)
 #define BIT_1     (Word16)127
 #define BIT_0_ITU (Word16)0x007F
 #define BIT_1_ITU (Word16)0x0081
diff --git a/media/libstagefright/codecs/amrwbenc/inc/dtx.h b/media/libstagefright/codecs/amrwbenc/inc/dtx.h
index 82a9bf4..7d7ebd8 100644
--- a/media/libstagefright/codecs/amrwbenc/inc/dtx.h
+++ b/media/libstagefright/codecs/amrwbenc/inc/dtx.h
@@ -31,7 +31,7 @@
 #define DTX_HANG_CONST 7                   /* yields eight frames of SP HANGOVER  */
 #define INV_MED_THRESH 14564
 #define ISF_GAP  128                       /* 50 */
-#define ONE_MINUS_ISF_GAP 16384 - ISF_GAP
+#define ONE_MINUS_ISF_GAP (16384 - ISF_GAP)
 #define ISF_GAP   128
 #define ISF_DITH_GAP   448
 #define ISF_FACTOR_LOW 256
diff --git a/media/libstagefright/codecs/amrwbenc/inc/homing.tab b/media/libstagefright/codecs/amrwbenc/inc/homing.tab
index e399fb8..6408d3a 100644
--- a/media/libstagefright/codecs/amrwbenc/inc/homing.tab
+++ b/media/libstagefright/codecs/amrwbenc/inc/homing.tab
@@ -21,15 +21,15 @@
 #define NUM_OF_SPMODES 9
 
 #define PRML 15
-#define PRMN_7k NBBITS_7k/PRML + 1
-#define PRMN_9k NBBITS_9k/PRML + 1
-#define PRMN_12k NBBITS_12k/PRML + 1
-#define PRMN_14k NBBITS_14k/PRML + 1
-#define PRMN_16k NBBITS_16k/PRML + 1
-#define PRMN_18k NBBITS_18k/PRML + 1
-#define PRMN_20k NBBITS_20k/PRML + 1
-#define PRMN_23k NBBITS_23k/PRML + 1
-#define PRMN_24k NBBITS_24k/PRML + 1
+#define PRMN_7k (NBBITS_7k/PRML + 1)
+#define PRMN_9k (NBBITS_9k/PRML + 1)
+#define PRMN_12k (NBBITS_12k/PRML + 1)
+#define PRMN_14k (NBBITS_14k/PRML + 1)
+#define PRMN_16k (NBBITS_16k/PRML + 1)
+#define PRMN_18k (NBBITS_18k/PRML + 1)
+#define PRMN_20k (NBBITS_20k/PRML + 1)
+#define PRMN_23k (NBBITS_23k/PRML + 1)
+#define PRMN_24k (NBBITS_24k/PRML + 1)
 
 static const Word16 dfh_M7k[PRMN_7k] =
 {
diff --git a/media/libstagefright/codecs/amrwbenc/inc/stream.h b/media/libstagefright/codecs/amrwbenc/inc/stream.h
index ec1a700..fbaae9e 100644
--- a/media/libstagefright/codecs/amrwbenc/inc/stream.h
+++ b/media/libstagefright/codecs/amrwbenc/inc/stream.h
@@ -26,7 +26,7 @@
 #define __STREAM_H__
 
 #include "voMem.h"
-#define Frame_Maxsize  1024 * 2  //Work Buffer 10K
+#define Frame_Maxsize  (1024 * 2)  //Work Buffer 10K
 #define Frame_MaxByte  640        //AMR_WB Encoder one frame 320 samples = 640 Bytes
 #define MIN(a,b)     ((a) < (b)? (a) : (b))
 
diff --git a/media/libstagefright/codecs/avc/Android.mk b/media/libstagefright/codecs/avc/Android.mk
deleted file mode 100644
index 2e43120..0000000
--- a/media/libstagefright/codecs/avc/Android.mk
+++ /dev/null
@@ -1,4 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/media/libstagefright/codecs/avc/common/Android.mk b/media/libstagefright/codecs/avc/common/Android.mk
deleted file mode 100644
index ed0f8ca..0000000
--- a/media/libstagefright/codecs/avc/common/Android.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
-	src/deblock.cpp \
- 	src/dpb.cpp \
- 	src/fmo.cpp \
- 	src/mb_access.cpp \
- 	src/reflist.cpp
-
-LOCAL_MODULE := libstagefright_avc_common
-
-LOCAL_CFLAGS := -DOSCL_EXPORT_REF= -DOSCL_IMPORT_REF=
-
-LOCAL_C_INCLUDES := \
-	$(LOCAL_PATH)/src \
- 	$(LOCAL_PATH)/include
-
-LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
-
-include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/avc/common/MODULE_LICENSE_APACHE2 b/media/libstagefright/codecs/avc/common/MODULE_LICENSE_APACHE2
deleted file mode 100644
index e69de29..0000000
--- a/media/libstagefright/codecs/avc/common/MODULE_LICENSE_APACHE2
+++ /dev/null
diff --git a/media/libstagefright/codecs/avc/common/NOTICE b/media/libstagefright/codecs/avc/common/NOTICE
deleted file mode 100644
index c5b1efa..0000000
--- a/media/libstagefright/codecs/avc/common/NOTICE
+++ /dev/null
@@ -1,190 +0,0 @@
-
-   Copyright (c) 2005-2008, The Android Open Source Project
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
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-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
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-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
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-      source, and configuration files.
-
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-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
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-      the original version of the Work and any modifications or additions
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-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
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-      or a Contribution incorporated within the Work constitutes direct
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-      granted to You under this License for that Work shall terminate
-      as of the date such litigation is filed.
-
-   4. Redistribution. You may reproduce and distribute copies of the
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-      meet the following conditions:
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-          stating that You changed the files; and
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-      (c) You must retain, in the Source form of any Derivative Works
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-          documentation, if provided along with the Derivative Works; or,
-          within a display generated by the Derivative Works, if and
-          wherever such third-party notices normally appear. The contents
-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
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-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
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-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
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-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
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-      or other liability obligations and/or rights consistent with this
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-      defend, and hold each Contributor harmless for any liability
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-   END OF TERMS AND CONDITIONS
-
diff --git a/media/libstagefright/codecs/avc/common/include/avc_types.h b/media/libstagefright/codecs/avc/common/include/avc_types.h
deleted file mode 100644
index ec8b6de..0000000
--- a/media/libstagefright/codecs/avc/common/include/avc_types.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#ifndef AVC_TYPES_H_
-
-#define AVC_TYPES_H_
-
-#include <stdint.h>
-
-typedef uint8_t uint8;
-typedef uint16_t uint16;
-typedef int16_t int16;
-typedef uint32_t uint32;
-typedef int32_t int32;
-typedef unsigned int uint;
-
-#endif  // AVC_TYPES_H_
diff --git a/media/libstagefright/codecs/avc/common/include/avcapi_common.h b/media/libstagefright/codecs/avc/common/include/avcapi_common.h
deleted file mode 100644
index abffe6e..0000000
--- a/media/libstagefright/codecs/avc/common/include/avcapi_common.h
+++ /dev/null
@@ -1,274 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-/**
-This file contains common type definitions and enumerations used by AVC encoder
-and decoder libraries which are exposed to the users.
-@publishedAll
-*/
-
-#ifndef AVCAPI_COMMON_H_INCLUDED
-#define AVCAPI_COMMON_H_INCLUDED
-
-#include "avc_types.h"
-
-#define PV_MEMORY_POOL
-/**
-This is common return status.
-@publishedAll
-*/
-typedef enum
-{
-    AVC_NO_BUFFER = -2,
-    AVC_MEMORY_FAIL = -1,
-    AVC_FAIL = 0,
-    AVC_SUCCESS = 1,
-    AVC_PICTURE_OUTPUT_READY = 2
-} AVCStatus;
-
-/**
-This enumeration is for profiles. The value follows the profile_idc  in sequence
-parameter set rbsp. See Annex A.
-@publishedAll
-*/
-typedef enum
-{
-    AVC_BASELINE = 66,
-    AVC_MAIN = 77,
-    AVC_EXTENDED = 88,
-    AVC_HIGH = 100,
-    AVC_HIGH10 = 110,
-    AVC_HIGH422 = 122,
-    AVC_HIGH444 = 144
-} AVCProfile;
-
-/**
-This enumeration is for levels. The value follows the level_idc in sequence
-parameter set rbsp. See Annex A.
-@published All
-*/
-typedef enum
-{
-    AVC_LEVEL_AUTO = 0,
-    AVC_LEVEL1_B = 9,
-    AVC_LEVEL1 = 10,
-    AVC_LEVEL1_1 = 11,
-    AVC_LEVEL1_2 = 12,
-    AVC_LEVEL1_3 = 13,
-    AVC_LEVEL2 = 20,
-    AVC_LEVEL2_1 = 21,
-    AVC_LEVEL2_2 = 22,
-    AVC_LEVEL3 = 30,
-    AVC_LEVEL3_1 = 31,
-    AVC_LEVEL3_2 = 32,
-    AVC_LEVEL4 = 40,
-    AVC_LEVEL4_1 = 41,
-    AVC_LEVEL4_2 = 42,
-    AVC_LEVEL5 = 50,
-    AVC_LEVEL5_1 = 51
-} AVCLevel;
-
-/**
-This enumeration follows Table 7-1 for NAL unit type codes.
-This may go to avccommon_api.h later (external common).
-@publishedAll
-*/
-typedef enum
-{
-    AVC_NALTYPE_SLICE = 1,  /* non-IDR non-data partition */
-    AVC_NALTYPE_DPA = 2,    /* data partition A */
-    AVC_NALTYPE_DPB = 3,    /* data partition B */
-    AVC_NALTYPE_DPC = 4,    /* data partition C */
-    AVC_NALTYPE_IDR = 5,    /* IDR NAL */
-    AVC_NALTYPE_SEI = 6,    /* supplemental enhancement info */
-    AVC_NALTYPE_SPS = 7,    /* sequence parameter set */
-    AVC_NALTYPE_PPS = 8,    /* picture parameter set */
-    AVC_NALTYPE_AUD = 9,    /* access unit delimiter */
-    AVC_NALTYPE_EOSEQ = 10, /* end of sequence */
-    AVC_NALTYPE_EOSTREAM = 11, /* end of stream */
-    AVC_NALTYPE_FILL = 12   /* filler data */
-} AVCNalUnitType;
-
-/**
-This enumeration specifies debug logging type.
-This may go to avccommon_api.h later (external common).
-@publishedAll
-*/
-typedef enum
-{
-    AVC_LOGTYPE_ERROR = 0,
-    AVC_LOGTYPE_WARNING = 1,
-    AVC_LOGTYPE_INFO = 2
-} AVCLogType;
-
-/**
-This enumerate the status of certain flags.
-@publishedAll
-*/
-typedef enum
-{
-    AVC_OFF = 0,
-    AVC_ON = 1
-} AVCFlag;
-
-/**
-This structure contains input information.
-Note, this structure is identical to AVCDecOutput for now.
-*/
-typedef struct tagAVCFrameIO
-{
-    /** A unique identification number for a particular instance of this structure.
-    To remain unchanged by the application between the time when it is given to the
-    library and the time when the library returns it back. */
-    uint32 id;
-
-    /** Array of pointers to Y,Cb,Cr content in 4:2:0 format. For AVC decoding,
-    this memory is allocated by the AVC decoder library. For AVC encoding, only the
-    memory for original unencoded frame is allocated by the application. Internal
-    memory is also allocated by the AVC encoder library. */
-    uint8 *YCbCr[3];
-
-    /** In/Out: Coded width of the luma component, it has to be multiple of 16. */
-    int pitch;
-
-    /** In/Out: Coded height of the luma component, must be multiple of 16. */
-    int height;
-
-    /** In/Out: Display width, less than picth */
-    int clip_width;
-
-    /** In/Out: Display height, less than height */
-    int clip_height;
-
-    /** Input: Origin of the display area [0]=>row, [1]=>column  */
-    int clip_origin[2];
-
-    /** Output: Frame number in de/encoding order (not necessary)*/
-    uint32 coding_order;
-
-    /** Output: Frame number in displaying order (this may or may not be associated with the POC at all!!!). */
-    uint32 disp_order;
-
-    /** In/Out: Flag for use for reference or not. */
-    uint  is_reference;
-
-    /** In/Out: Coding timestamp in msec (not display timestamp) */
-    uint32 coding_timestamp;
-
-    /* there could be something else here such as format, DON (decoding order number)
-     if available thru SEI, etc. */
-} AVCFrameIO;
-
-
-/** CALLBACK FUNCTION TO BE IMPLEMENTED BY APPLICATION */
-/** In AVCDecControls structure, userData is a pointer to an object with the following
-    member functions.
-*/
-
-
-/** @brief Decoded picture buffers (DPB) must be allocated or re-allocated before an
-    IDR frame is decoded. If PV_MEMORY_POOL is not defined, AVC lib will allocate DPB
-    internally which cannot be shared with the application. In that case, this function
-    will not be called.
-    @param userData  The same value of userData in AVCHandle object.
-    @param frame_size_in_mbs  The size of each frame in number of macroblocks.
-    @param num_frames The number of frames in DPB.
-    @return 1 for success, 0 for fail (cannot allocate DPB)
-*/
-
-typedef int (*FunctionType_DPBAlloc)(void *userData, uint frame_size_in_mbs, uint num_buffers);
-
-/** @brief AVC library calls this function is reserve a memory of one frame from the DPB.
-    Once reserved, this frame shall not be deleted or over-written by the app.
-    @param userData  The same value of userData in AVCHandle object.
-    @param indx      Index of a frame in DPB (AVC library keeps track of the index).
-    @param yuv      The address of the yuv pointer returned to the AVC lib.
-    @return         1 for success, 0 for fail (no frames available to bind).
-    */
-typedef int (*FunctionType_FrameBind)(void *userData, int indx, uint8 **yuv);
-
-/** @brief AVC library calls this function once a bound frame is not needed for decoding
-    operation (falls out of the sliding window, or marked unused for reference).
-    @param userData  The same value of userData in AVCHandle object.
-    @param indx      Index of frame to be unbound (AVC library keeps track of the index).
-    @return  none.
-*/
-typedef void (*FuctionType_FrameUnbind)(void *userData, int);
-
-/** Pointer to malloc function for general memory allocation, so that application can keep track of
-    memory usage.
-\param "size" "Size of requested memory in bytes."
-\param "attribute" "Some value specifying types, priority, etc. of the memory."
-\return "The address of the allocated, zero-initialized memory"
-*/
-typedef void* (*FunctionType_Malloc)(void *userData, int32 size, int attribute);
-
-/** Function pointer to free
-\param "mem" "Pointer to the memory to be freed"
-\return "void"
-*/
-typedef void (*FunctionType_Free)(void *userData, void *mem);
-
-/** Debug logging information is returned to the application thru this function.
-\param "type"   "Type of logging message, see definition of AVCLogType."
-\param "string1"    "Logging message."
-\param "string2"    "To be defined."
-*/
-typedef void (*FunctionType_DebugLog)(uint32 *userData, AVCLogType type, char *string1, int val1, int val2);
-
-/**
-This structure has to be allocated and maintained by the user of the library.
-This structure is used as a handle to the library object.
-*/
-typedef struct tagAVCHandle
-{
-    /** A pointer to the internal data structure. Users have to make sure that this value
-        is NULL at the beginning.
-    */
-    void        *AVCObject;
-
-    /** A pointer to user object which has the following member functions used for
-    callback purpose.  !!! */
-    void        *userData;
-
-    /** Pointers to functions implemented by the users of AVC library */
-    FunctionType_DPBAlloc CBAVC_DPBAlloc;
-
-    FunctionType_FrameBind CBAVC_FrameBind;
-
-    FuctionType_FrameUnbind CBAVC_FrameUnbind;
-
-    FunctionType_Malloc CBAVC_Malloc;
-
-    FunctionType_Free  CBAVC_Free;
-
-    FunctionType_DebugLog CBAVC_DebugLog;
-
-    /** Flag to enable debugging */
-    uint32  debugEnable;
-
-} AVCHandle;
-
-
-
-#ifdef PVDEBUGMSG_LOG
-#define DEBUG_LOG(a,b,c,d,e)    CBAVC_DebugLog(a,b,c,d,e)
-#else
-#define DEBUG_LOG(a,b,c,d,e)
-#endif
-
-#endif /* _AVCAPI_COMMON_H_ */
diff --git a/media/libstagefright/codecs/avc/common/include/avcint_common.h b/media/libstagefright/codecs/avc/common/include/avcint_common.h
deleted file mode 100644
index 465e604..0000000
--- a/media/libstagefright/codecs/avc/common/include/avcint_common.h
+++ /dev/null
@@ -1,882 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-/**
-This file contains common code shared between AVC decoder and AVC encoder for
-internal use only.
-@publishedAll
-*/
-
-#ifndef AVCINT_COMMON_H_INCLUDED
-#define AVCINT_COMMON_H_INCLUDED
-
-#ifndef AVCAPI_COMMON_H_INCLUDED
-#include "avcapi_common.h"
-#endif
-
-
-#ifndef TRUE
-#define TRUE  1
-#define FALSE 0
-#endif
-
-
-
-/**
-Mathematic functions defined in subclause 5.7.
-Can be replaced with assembly instructions for speedup.
-@publishedAll
-*/
-#define AVC_ABS(x)   (((x)<0)? -(x) : (x))
-#define AVC_SIGN(x)  (((x)<0)? -1 : 1)
-#define AVC_SIGN0(x) (((x)<0)? -1 : (((x)>0) ? 1 : 0))
-#define AVC_MAX(x,y) ((x)>(y)? (x):(y))
-#define AVC_MIN(x,y) ((x)<(y)? (x):(y))
-#define AVC_MEDIAN(A,B,C) ((A) > (B) ? ((A) < (C) ? (A) : (B) > (C) ? (B) : (C)): (B) < (C) ? (B) : (C) > (A) ? (C) : (A))
-#define AVC_CLIP3(a,b,x) (AVC_MAX(a,AVC_MIN(x,b)))  /* clip x between a and b */
-#define AVC_CLIP(x)  AVC_CLIP3(0,255,x)
-#define AVC_FLOOR(x) ((int)(x))
-#define AVC_RASTER_SCAN(x,y,n)  ((x)+(y)*(n))
-#define AVC_ROUND(x) (AVC_SIGN(x)*AVC_FLOOR(AVC_ABS(x)+0.5))
-#define AVC_INVERSE_RASTER_SCAN(a,b,c,d,e) (((e)==0)? (((a)%((d)/(b)))*(b)): (((a)/((d)/(b)))*(c)))
-/* a:block address, b:block width, c:block height, d:total_width, e:x or y coordinate */
-
-#define DEFAULT_ATTR  0  /* default memory attribute  */
-#define FAST_MEM_ATTR 1  /* fast memory attribute */
-
-
-/* This section is for definition of constants. */
-#define MB_SIZE 16
-#define BLOCK_SIZE 4
-#define EMULATION_PREVENTION_THREE_BYTE 0x3
-#define NUM_PIXELS_IN_MB  (24*16)
-#define NUM_BLKS_IN_MB 24
-
-#define AVCNumI4PredMode  9
-#define AVCNumI16PredMode  4
-#define AVCNumIChromaMode  4
-
-/* constants used in the structures below */
-#define MAXIMUMVALUEOFcpb_cnt   32  /* used in HRDParams */
-#define MAX_NUM_REF_FRAMES_IN_PIC_ORDER_CNT_CYCLE 255   /* used in SeqParamSet */
-#define MAX_NUM_SLICE_GROUP  8      /* used in PicParamSet */
-#define MAX_REF_PIC_LIST_REORDERING 32  /* 32 is maximum according to Annex A, SliceHeader */
-#define MAX_DEC_REF_PIC_MARKING 64   /* 64 is the maximum possible given the max num ref pictures to 31. */
-#define MAX_FS (16+1)  /* pre-defined size of frame store array */
-#define MAX_LEVEL_IDX  15  /* only 15 levels defined for now */
-#define MAX_REF_PIC_LIST 33 /* max size of the RefPicList0 and RefPicList1 */
-
-
-/**
-Architectural related macros.
-@publishedAll
-*/
-#ifdef USE_PRED_BLOCK
-#define MB_BASED_DEBLOCK
-#endif
-
-/**
-Picture type, PV created.
-@publishedAll
-*/
-typedef enum
-{
-    AVC_FRAME = 3
-} AVCPictureType;
-
-/**
-This slice type follows Table 7-3. The bottom 5 items may not needed.
-@publishedAll
-*/
-typedef enum
-{
-    AVC_P_SLICE = 0,
-    AVC_B_SLICE = 1,
-    AVC_I_SLICE = 2,
-    AVC_SP_SLICE = 3,
-    AVC_SI_SLICE = 4,
-    AVC_P_ALL_SLICE = 5,
-    AVC_B_ALL_SLICE = 6,
-    AVC_I_ALL_SLICE = 7,
-    AVC_SP_ALL_SLICE = 8,
-    AVC_SI_ALL_SLICE = 9
-} AVCSliceType;
-
-/**
-Types of the macroblock and partition. PV Created.
-@publishedAll
-*/
-typedef enum
-{
-    /* intra */
-    AVC_I4,
-    AVC_I16,
-    AVC_I_PCM,
-    AVC_SI4,
-
-    /* inter for both P and B*/
-    AVC_BDirect16,
-    AVC_P16,
-    AVC_P16x8,
-    AVC_P8x16,
-    AVC_P8,
-    AVC_P8ref0,
-    AVC_SKIP
-} AVCMBMode;
-
-/**
-Enumeration for sub-macroblock mode, interpreted from sub_mb_type.
-@publishedAll
-*/
-typedef enum
-{
-    /* for sub-partition mode */
-    AVC_BDirect8,
-    AVC_8x8,
-    AVC_8x4,
-    AVC_4x8,
-    AVC_4x4
-} AVCSubMBMode;
-
-/**
-Mode of prediction of partition or sub-partition. PV Created.
-Do not change the order!!! Used in table look-up mode prediction in
-vlc.c.
-@publishedAll
-*/
-typedef enum
-{
-    AVC_Pred_L0 = 0,
-    AVC_Pred_L1,
-    AVC_BiPred,
-    AVC_Direct
-} AVCPredMode;
-
-
-/**
-Mode of intra 4x4 prediction. Table 8-2
-@publishedAll
-*/
-typedef enum
-{
-    AVC_I4_Vertical = 0,
-    AVC_I4_Horizontal,
-    AVC_I4_DC,
-    AVC_I4_Diagonal_Down_Left,
-    AVC_I4_Diagonal_Down_Right,
-    AVC_I4_Vertical_Right,
-    AVC_I4_Horizontal_Down,
-    AVC_I4_Vertical_Left,
-    AVC_I4_Horizontal_Up
-} AVCIntra4x4PredMode;
-
-/**
-Mode of intra 16x16 prediction. Table 8-3
-@publishedAll
-*/
-typedef enum
-{
-    AVC_I16_Vertical = 0,
-    AVC_I16_Horizontal,
-    AVC_I16_DC,
-    AVC_I16_Plane
-} AVCIntra16x16PredMode;
-
-
-/**
-Mode of intra chroma prediction. Table 8-4
-@publishedAll
-*/
-typedef enum
-{
-    AVC_IC_DC = 0,
-    AVC_IC_Horizontal,
-    AVC_IC_Vertical,
-    AVC_IC_Plane
-} AVCIntraChromaPredMode;
-
-/**
-Type of residual going to residual_block_cavlc function, PV created.
-@publishedAll
-*/
-typedef enum
-{
-    AVC_Luma,
-    AVC_Intra16DC,
-    AVC_Intra16AC,
-    AVC_ChromaDC,
-    AVC_ChromaAC
-} AVCResidualType;
-
-
-/**
-This structure contains VUI parameters as specified in Annex E.
-Some variables may be removed from the structure if they are found to be useless to store.
-@publishedAll
-*/
-typedef struct tagHRDParams
-{
-    uint  cpb_cnt_minus1;                                   /* ue(v), range 0..31 */
-    uint  bit_rate_scale;                          /* u(4) */
-    uint  cpb_size_scale;                          /* u(4) */
-    uint32  bit_rate_value_minus1[MAXIMUMVALUEOFcpb_cnt];/* ue(v), range 0..2^32-2 */
-    uint32  cpb_size_value_minus1[MAXIMUMVALUEOFcpb_cnt]; /* ue(v), range 0..2^32-2 */
-    uint  cbr_flag[MAXIMUMVALUEOFcpb_cnt];         /* u(1) */
-    uint  initial_cpb_removal_delay_length_minus1;   /* u(5), default 23 */
-    uint  cpb_removal_delay_length_minus1;           /* u(5), default 23 */
-    uint  dpb_output_delay_length_minus1;            /* u(5), default 23 */
-    uint  time_offset_length;                        /* u(5), default 24 */
-} AVCHRDParams;
-
-/**
-This structure contains VUI parameters as specified in Annex E.
-Some variables may be removed from the structure if they are found to be useless to store.
-@publishedAll
-*/
-typedef struct tagVUIParam
-{
-    uint      aspect_ratio_info_present_flag;     /* u(1) */
-    uint  aspect_ratio_idc;                     /* u(8), table E-1 */
-    uint  sar_width;                          /* u(16) */
-    uint  sar_height;                         /* u(16) */
-    uint      overscan_info_present_flag;         /* u(1) */
-    uint      overscan_appropriate_flag;        /* u(1) */
-    uint      video_signal_type_present_flag;     /* u(1) */
-    uint  video_format;                         /* u(3), Table E-2, default 5, unspecified */
-    uint      video_full_range_flag;            /* u(1) */
-    uint      colour_description_present_flag;  /* u(1) */
-    uint  colour_primaries;                   /* u(8), Table E-3, default 2, unspecified */
-    uint  transfer_characteristics;           /* u(8), Table E-4, default 2, unspecified */
-    uint  matrix_coefficients;                /* u(8), Table E-5, default 2, unspecified */
-    uint      chroma_location_info_present_flag;  /* u(1) */
-    uint  chroma_sample_loc_type_top_field;                /* ue(v), Fig. E-1range 0..5, default 0 */
-    uint  chroma_sample_loc_type_bottom_field;                /* ue(v) */
-    uint      timing_info_present_flag;           /* u(1) */
-    uint  num_units_in_tick;                    /* u(32), must be > 0 */
-    uint  time_scale;                           /* u(32), must be > 0 */
-    uint      fixed_frame_rate_flag;            /* u(1), Eq. C-13 */
-    uint      nal_hrd_parameters_present_flag;    /* u(1) */
-    AVCHRDParams nal_hrd_parameters;               /* hrd_paramters */
-    uint      vcl_hrd_parameters_present_flag;    /* u(1) */
-    AVCHRDParams vcl_hrd_parameters;               /* hrd_paramters */
-    /* if ((nal_hrd_parameters_present_flag || (vcl_hrd_parameters_present_flag)) */
-    uint      low_delay_hrd_flag;               /* u(1) */
-    uint    pic_struct_present_flag;
-    uint      bitstream_restriction_flag;         /* u(1) */
-    uint      motion_vectors_over_pic_boundaries_flag;    /* u(1) */
-    uint  max_bytes_per_pic_denom;              /* ue(v), default 2 */
-    uint  max_bits_per_mb_denom;                /* ue(v), range 0..16, default 1 */
-    uint  log2_max_mv_length_vertical;          /* ue(v), range 0..16, default 16 */
-    uint  log2_max_mv_length_horizontal;        /* ue(v), range 0..16, default 16 */
-    uint  max_dec_frame_reordering;             /* ue(v) */
-    uint  max_dec_frame_buffering;              /* ue(v) */
-} AVCVUIParams;
-
-
-/**
-This structure contains information in a sequence parameter set NAL.
-Some variables may be removed from the structure if they are found to be useless to store.
-@publishedAll
-*/
-typedef struct tagSeqParamSet
-{
-    uint   Valid;            /* indicates the parameter set is valid */
-
-    uint  profile_idc;              /* u(8) */
-    uint   constrained_set0_flag;  /* u(1) */
-    uint   constrained_set1_flag;  /* u(1) */
-    uint   constrained_set2_flag;  /* u(1) */
-    uint   constrained_set3_flag;  /* u(1) */
-    uint  level_idc;               /* u(8) */
-    uint  seq_parameter_set_id;    /* ue(v), range 0..31 */
-    uint  log2_max_frame_num_minus4; /* ue(v), range 0..12 */
-    uint pic_order_cnt_type;        /* ue(v), range 0..2 */
-    /* if( pic_order_cnt_type == 0 )  */
-    uint log2_max_pic_order_cnt_lsb_minus4; /* ue(v), range 0..12 */
-    /* else if( pic_order_cnt_type == 1 ) */
-    uint delta_pic_order_always_zero_flag;  /* u(1) */
-    int32  offset_for_non_ref_pic;       /* se(v) */
-    int32  offset_for_top_to_bottom_field;  /* se(v) */
-    uint  num_ref_frames_in_pic_order_cnt_cycle;   /* ue(v) , range 0..255 */
-    /* for( i = 0; i < num_ref_frames_in_pic_order_cnt_cycle; i++ ) */
-    int32   offset_for_ref_frame[MAX_NUM_REF_FRAMES_IN_PIC_ORDER_CNT_CYCLE];        /* se(v) */
-    uint  num_ref_frames;                           /* ue(v), range 0..16 */
-    uint   gaps_in_frame_num_value_allowed_flag;    /* u(1) */
-    uint  pic_width_in_mbs_minus1;                  /* ue(v) */
-    uint  pic_height_in_map_units_minus1;           /* ue(v) */
-    uint   frame_mbs_only_flag;                     /* u(1) */
-    /* if( !frame_mbs_only_flag ) */
-    uint   mb_adaptive_frame_field_flag;          /* u(1) */
-    uint   direct_8x8_inference_flag;    /* u(1), must be 1 when frame_mbs_only_flag is 0 */
-    uint   frame_cropping_flag;                     /* u(1) */
-    /* if( frmae_cropping_flag) */
-    uint  frame_crop_left_offset;                /* ue(v) */
-    uint  frame_crop_right_offset;               /* ue(v) */
-    uint  frame_crop_top_offset;                 /* ue(v) */
-    uint  frame_crop_bottom_offset;              /* ue(v) */
-    uint   vui_parameters_present_flag;                      /* u(1) */
-//  uint nal_hrd_parameters_present_flag;
-//  uint vcl_hrd_parameters_present_flag;
-//  AVCHRDParams *nal_hrd_parameters;
-//  AVCHRDParams *vcl_hrd_parameters;
-    AVCVUIParams vui_parameters;                  /* AVCVUIParam */
-} AVCSeqParamSet;
-
-/**
-This structure contains information in a picture parameter set NAL.
-Some variables may be removed from the structure if they are found to be useless to store.
-@publishedAll
-*/
-typedef struct tagPicParamSet
-{
-    uint  pic_parameter_set_id;              /* ue(v), range 0..255 */
-    uint  seq_parameter_set_id;              /* ue(v), range 0..31 */
-    uint  entropy_coding_mode_flag;         /* u(1) */
-    uint  pic_order_present_flag;        /* u(1) */
-    uint  num_slice_groups_minus1;           /* ue(v), range in Annex A */
-    /* if( num_slice_groups_minus1 > 0) */
-    uint  slice_group_map_type;           /* ue(v), range 0..6 */
-    /* if( slice_group_map_type = = 0 ) */
-    /* for(0:1:num_slice_groups_minus1) */
-    uint  run_length_minus1[MAX_NUM_SLICE_GROUP]; /* ue(v) */
-    /* else if( slice_group_map_type = = 2 ) */
-    /* for(0:1:num_slice_groups_minus1-1) */
-    uint  top_left[MAX_NUM_SLICE_GROUP-1];      /* ue(v) */
-    uint  bottom_right[MAX_NUM_SLICE_GROUP-1];  /* ue(v) */
-    /* else if( slice_group_map_type = = 3 || 4 || 5 */
-    uint  slice_group_change_direction_flag;        /* u(1) */
-    uint  slice_group_change_rate_minus1;            /* ue(v) */
-    /* else if( slice_group_map_type = = 6 ) */
-    uint  pic_size_in_map_units_minus1;          /* ue(v) */
-    /* for(0:1:pic_size_in_map_units_minus1) */
-    uint  *slice_group_id;                           /* complete MBAmap u(v) */
-    uint  num_ref_idx_l0_active_minus1;                  /* ue(v), range 0..31 */
-    uint  num_ref_idx_l1_active_minus1;                  /* ue(v), range 0..31 */
-    uint  weighted_pred_flag;                           /* u(1) */
-    uint  weighted_bipred_idc;                          /* u(2), range 0..2 */
-    int   pic_init_qp_minus26;                       /* se(v), range -26..25 */
-    int   pic_init_qs_minus26;                       /* se(v), range -26..25 */
-    int   chroma_qp_index_offset;                    /* se(v), range -12..12 */
-    uint  deblocking_filter_control_present_flag;       /* u(1) */
-    uint  constrained_intra_pred_flag;                  /* u(1) */
-    uint  redundant_pic_cnt_present_flag;               /* u(1) */
-} AVCPicParamSet;
-
-
-/**
-This structure contains slice header information.
-Some variables may be removed from the structure if they are found to be useless to store.
-@publishedAll
-*/
-typedef struct tagSliceHeader
-{
-    uint    first_mb_in_slice;      /* ue(v) */
-    AVCSliceType slice_type;                /* ue(v), Table 7-3, range 0..9 */
-    uint    pic_parameter_set_id;   /* ue(v), range 0..255 */
-    uint    frame_num;              /* u(v), see log2max_frame_num_minus4 */
-    /* if( !frame_mbs_only_flag) */
-    uint    field_pic_flag;         /* u(1) */
-    /* if(field_pic_flag) */
-    uint bottom_field_flag; /* u(1) */
-    /* if(nal_unit_type == 5) */
-    uint    idr_pic_id;         /* ue(v), range 0..65535 */
-    /* if(pic_order_cnt_type==0) */
-    uint    pic_order_cnt_lsb;  /* u(v), range 0..MaxPicOrderCntLsb-1 */
-    /* if(pic_order_present_flag && !field_pic_flag) */
-    int32 delta_pic_order_cnt_bottom;   /* se(v) */
-    /* if(pic_order_cnt_type==1 && !delta_pic_order_always_zero_flag) */
-    /* if(pic_order_present_flag && !field_pic_flag) */
-    int32 delta_pic_order_cnt[2];
-    /* if(redundant_pic_cnt_present_flag) */
-    uint redundant_pic_cnt; /* ue(v), range 0..127 */
-    /* if(slice_type == B) */
-    uint direct_spatial_mv_pred_flag; /* u(1) */
-    /* if(slice_type == P || slice_type==SP || slice_type==B) */
-    uint num_ref_idx_active_override_flag;  /* u(1) */
-    /* if(num_ref_idx_active_override_flag) */
-    uint num_ref_idx_l0_active_minus1;  /* ue(v) */
-    /* if(slie_type == B) */
-    uint num_ref_idx_l1_active_minus1;  /* ue(v) */
-
-    /* ref_pic_list_reordering() */
-    uint ref_pic_list_reordering_flag_l0;   /* u(1) */
-    uint reordering_of_pic_nums_idc_l0[MAX_REF_PIC_LIST_REORDERING];   /* ue(v), range 0..3 */
-    uint abs_diff_pic_num_minus1_l0[MAX_REF_PIC_LIST_REORDERING];   /* ue(v) */
-    uint long_term_pic_num_l0[MAX_REF_PIC_LIST_REORDERING];     /* ue(v) */
-    uint ref_pic_list_reordering_flag_l1;   /* u(1) */
-    uint reordering_of_pic_nums_idc_l1[MAX_REF_PIC_LIST_REORDERING];   /* ue(v), range 0..3 */
-    uint abs_diff_pic_num_minus1_l1[MAX_REF_PIC_LIST_REORDERING];   /* ue(v) */
-    uint long_term_pic_num_l1[MAX_REF_PIC_LIST_REORDERING];     /* ue(v) */
-
-    /* end ref_pic_list_reordering() */
-    /* if(nal_ref_idc!=0) */
-    /* dec_ref_pic_marking() */
-    uint    no_output_of_prior_pics_flag;   /* u(1) */
-    uint long_term_reference_flag;      /* u(1) */
-    uint    adaptive_ref_pic_marking_mode_flag; /* u(1) */
-    uint    memory_management_control_operation[MAX_DEC_REF_PIC_MARKING];   /* ue(v), range 0..6 */
-    uint difference_of_pic_nums_minus1[MAX_DEC_REF_PIC_MARKING];    /* ue(v) */
-    uint    long_term_pic_num[MAX_DEC_REF_PIC_MARKING];             /* ue(v) */
-    uint    long_term_frame_idx[MAX_DEC_REF_PIC_MARKING];           /* ue(v) */
-    uint    max_long_term_frame_idx_plus1[MAX_DEC_REF_PIC_MARKING]; /* ue(v) */
-    /* end dec_ref_pic_marking() */
-    /* if(entropy_coding_mode_flag && slice_type!=I && slice_type!=SI) */
-    uint cabac_init_idc;        /* ue(v), range 0..2 */
-    int slice_qp_delta;     /* se(v), range 0..51 */
-    /* if(slice_type==SP || slice_type==SI) */
-    /* if(slice_type==SP) */
-    uint    sp_for_switch_flag; /* u(1) */
-    int slice_qs_delta;     /* se(v) */
-
-    /* if(deblocking_filter_control_present_flag)*/
-    uint disable_deblocking_filter_idc; /* ue(v), range 0..2 */
-    /* if(disable_deblocking_filter_idc!=1) */
-    int slice_alpha_c0_offset_div2; /* se(v), range -6..6, default 0 */
-    int slice_beta_offset_div_2; /* se(v), range -6..6, default 0 */
-    /* if(num_slice_groups_minus1>0 && slice_group_map_type>=3 && slice_group_map_type<=5)*/
-    uint    slice_group_change_cycle;   /* u(v), use ceil(log2(PicSizeInMapUnits/SliceGroupChangeRate + 1)) bits*/
-
-} AVCSliceHeader;
-
-/**
-This struct contains information about the neighboring pixel.
-@publishedAll
-*/
-typedef struct tagPixPos
-{
-    int available;
-    int mb_addr;    /* macroblock address of the current pixel, see below */
-    int x;      /* x,y positions of current pixel relative to the macroblock mb_addr */
-    int y;
-    int pos_x;  /* x,y positions of current pixel relative to the picture. */
-    int pos_y;
-} AVCPixelPos;
-
-typedef struct tagNeighborAvailability
-{
-    int left;
-    int top;    /* macroblock address of the current pixel, see below */
-    int top_right;      /* x,y positions of current pixel relative to the macroblock mb_addr */
-} AVCNeighborAvailability;
-
-
-/**
-This structure contains picture data and related information necessary to be used as
-reference frame.
-@publishedAll
-*/
-typedef struct tagPictureData
-{
-    uint16 RefIdx;  /* index used for reference frame */
-    uint8 *Sl;   /* derived from base_dpb in AVCFrameStore */
-    uint8 *Scb;  /* for complementary fields, YUV are interlaced */
-    uint8 *Scr;  /* Sl of top_field and bottom_fields will be one line apart and the
-                    stride will be 2 times the width. */
-    /* For non-complementary field, the above still applies. A special
-       output formatting is required. */
-
-    /* Then, necessary variables that need to be stored */
-    AVCPictureType  picType; /* frame, top-field or bot-field */
-    /*bool*/
-    uint    isReference;
-    /*bool*/
-    uint    isLongTerm;
-    int     PicOrderCnt;
-    int     PicNum;
-    int     LongTermPicNum;
-
-    int     width; /* how many pixel per line */
-    int     height;/* how many line */
-    int     pitch; /* how many pixel between the line */
-
-    uint    padded; /* flag for being padded */
-
-} AVCPictureData;
-
-/**
-This structure contains information for frame storage.
-@publishedAll
-*/
-typedef struct tagFrameStore
-{
-    uint8 *base_dpb;    /* base pointer for the YCbCr */
-
-    int     IsReference; /*  0=not used for ref; 1=top used; 2=bottom used; 3=both fields (or frame) used */
-    int     IsLongTerm;  /*  0=not used for ref; 1=top used; 2=bottom used; 3=both fields (or frame) used */
-    /* if IsLongTerm is true, IsReference can be ignored. */
-    /* if IsReference is true, IsLongterm will be checked for short-term or long-term. */
-    /* IsUsed must be true to enable the validity of IsReference and IsLongTerm */
-
-    int     IsOutputted;  /* has it been outputted via AVCDecGetOutput API, then don't output it again,
-                            wait until it is returned. */
-    AVCPictureData frame;
-
-    int     FrameNum;
-    int     FrameNumWrap;
-    int     LongTermFrameIdx;
-    int     PicOrderCnt; /* of the frame, smaller of the 2 fields */
-
-} AVCFrameStore;
-
-/**
-This structure maintains the actual memory for the decoded picture buffer (DPB) which is
-allocated at the beginning according to profile/level.
-Once decoded_picture_buffer is allocated, Sl,Scb,Scr in
-AVCPictureData structure just point to the address in decoded_picture_buffer.
-used_size maintains the used space.
-NOTE:: In order to maintain contiguous memory space, memory equal to a single frame is
-assigned at a time. Two opposite fields reside in the same frame memory.
-
-  |-------|---|---|---|xxx|-------|xxx|---|-------|   decoded_picture_buffer
-    frame  top bot top      frame      bot  frame
-      0     1   1   2         3         4     5
-
-  bot 2 and top 4 do not exist, the memory is not used.
-
-@publishedAll
-*/
-typedef struct tagDecPicBuffer
-{
-    uint8 *decoded_picture_buffer;  /* actual memory */
-    uint32  dpb_size;       /* size of dpb in bytes */
-    uint32  used_size;  /* used size */
-    struct tagFrameStore    *fs[MAX_FS]; /* list of frame stored, actual buffer */
-    int     num_fs;  /* size of fs */
-
-} AVCDecPicBuffer;
-
-
-/**
-This structure contains macroblock related variables.
-@publishedAll
-*/
-typedef struct tagMacroblock
-{
-    AVCIntraChromaPredMode  intra_chroma_pred_mode;  /* ue(v) */
-
-    int32 mvL0[16];  /* motion vectors, 16 bit packed (x,y) per element  */
-    int32 mvL1[16];
-    int16 ref_idx_L0[4];
-    int16 ref_idx_L1[4];
-    uint16 RefIdx[4]; /* ref index, has value of AVCPictureData->RefIdx */
-    /* stored data */
-    /*bool*/
-    uint    mb_intra; /* intra flag */
-    /*bool*/
-    uint    mb_bottom_field;
-
-    AVCMBMode mbMode;   /* type of MB prediction */
-    AVCSubMBMode subMbMode[4]; /* for each 8x8 partition */
-
-    uint    CBP; /* CodeBlockPattern */
-    AVCIntra16x16PredMode i16Mode; /* Intra16x16PredMode */
-    AVCIntra4x4PredMode i4Mode[16]; /* Intra4x4PredMode, in raster scan order */
-    int NumMbPart; /* number of partition */
-    AVCPredMode MBPartPredMode[4][4]; /* prediction mode [MBPartIndx][subMBPartIndx] */
-    int MbPartWidth;
-    int MbPartHeight;
-    int NumSubMbPart[4];  /* for each 8x8 partition */
-    int SubMbPartWidth[4];  /* for each 8x8 partition */
-    int SubMbPartHeight[4]; /* for each 8x8 partition */
-
-    uint8 nz_coeff[NUM_BLKS_IN_MB];  /* [blk_y][blk_x], Chroma is [4..5][0...3], see predict_nnz() function */
-
-    int QPy; /* Luma QP */
-    int QPc; /* Chroma QP */
-    int QSc; /* Chroma QP S-picture */
-
-    int slice_id;           // MC slice
-} AVCMacroblock;
-
-
-/**
-This structure contains common internal variables between the encoder and decoder
-such that some functions can be shared among them.
-@publishedAll
-*/
-typedef struct tagCommonObj
-{
-    /* put these 2 up here to make sure they are word-aligned */
-    int16   block[NUM_PIXELS_IN_MB]; /* for transformed residue coefficient */
-    uint8   *pred_block;    /* pointer to prediction block, could point to a frame */
-#ifdef USE_PRED_BLOCK
-    uint8   pred[688];  /* for prediction */
-    /* Luma [0-399], Cb [400-543], Cr[544-687] */
-#endif
-    int     pred_pitch; /* either equal to 20 or to frame pitch */
-
-    /* temporary buffers for intra prediction */
-    /* these variables should remain inside fast RAM */
-#ifdef MB_BASED_DEBLOCK
-    uint8   *intra_pred_top; /* a row of pixel for intra prediction */
-    uint8   intra_pred_left[17]; /* a column of pixel for intra prediction */
-    uint8   *intra_pred_top_cb;
-    uint8   intra_pred_left_cb[9];
-    uint8   *intra_pred_top_cr;
-    uint8   intra_pred_left_cr[9];
-#endif
-    /* pointer to the prediction area for intra prediction */
-    uint8   *pintra_pred_top;   /* pointer to the top intra prediction value */
-    uint8   *pintra_pred_left;  /* pointer to the left intra prediction value */
-    uint8   intra_pred_topleft; /* the [-1,-1] neighboring pixel */
-    uint8   *pintra_pred_top_cb;
-    uint8   *pintra_pred_left_cb;
-    uint8   intra_pred_topleft_cb;
-    uint8   *pintra_pred_top_cr;
-    uint8   *pintra_pred_left_cr;
-    uint8   intra_pred_topleft_cr;
-
-    int QPy;
-    int QPc;
-    int QPy_div_6;
-    int QPy_mod_6;
-    int QPc_div_6;
-    int QPc_mod_6;
-    /**** nal_unit ******/
-    /* previously in AVCNALUnit format */
-    uint    NumBytesInRBSP;
-    int     forbidden_bit;
-    int     nal_ref_idc;
-    AVCNalUnitType  nal_unit_type;
-    AVCNalUnitType  prev_nal_unit_type;
-    /*bool*/
-    uint    slice_data_partitioning; /* flag when nal_unit_type is between 2 and 4 */
-    /**** ******** ******/
-    AVCSliceType slice_type;
-    AVCDecPicBuffer     *decPicBuf; /* decoded picture buffer */
-
-    AVCSeqParamSet *currSeqParams; /*  the currently used one */
-
-    AVCPicParamSet  *currPicParams; /* the currently used one */
-    uint        seq_parameter_set_id;
-    /* slice header */
-    AVCSliceHeader *sliceHdr;   /* slice header param syntax variables */
-
-    AVCPictureData  *currPic; /* pointer to current picture */
-    AVCFrameStore   *currFS;  /* pointer to current frame store */
-    AVCPictureType  currPicType; /* frame, top-field or bot-field */
-    /*bool*/
-    uint    newPic; /* flag for new picture */
-    uint            newSlice; /* flag for new slice */
-    AVCPictureData  *prevRefPic; /* pointer to previous picture */
-
-    AVCMacroblock   *mblock; /* array of macroblocks covering entire picture */
-    AVCMacroblock   *currMB; /* pointer to current macroblock */
-    uint                    mbNum; /* number of current MB */
-    int                 mb_x;  /* x-coordinate of the current mbNum */
-    int                 mb_y;  /* y-coordinate of the current mbNum */
-
-    /* For internal operation, scratch memory for MV, prediction, transform, etc.*/
-    uint32 cbp4x4; /* each bit represent nonzero 4x4 block in reverse raster scan order */
-    /* starting from luma, Cb and Cr, lsb toward msb */
-    int mvd_l0[4][4][2]; /* [mbPartIdx][subMbPartIdx][compIdx], se(v) */
-    int mvd_l1[4][4][2]; /* [mbPartIdx][subMbPartIdx][compIdx], se(v) */
-
-    int mbAddrA, mbAddrB, mbAddrC, mbAddrD; /* address of neighboring MBs */
-    /*bool*/
-    uint    mbAvailA, mbAvailB, mbAvailC, mbAvailD; /* availability */
-    /*bool*/
-    uint    intraAvailA, intraAvailB, intraAvailC, intraAvailD; /* for intra mode */
-    /***********************************************/
-    /* The following variables are defined in the draft. */
-    /* They may need to be stored in PictureData structure and used for reference. */
-    /* In that case, just move or copy it to AVCDecPictureData structure. */
-
-    int     padded_size;    /* size of extra padding to a frame */
-
-    uint    MaxFrameNum;    /*2^(log2_max_frame_num_minus4+4), range 0.. 2^16-1 */
-    uint    MaxPicOrderCntLsb; /*2^(log2_max_pic_order_cnt_lsb_minus4+4), 0..2^16-1 */
-    uint    PicWidthInMbs;  /*pic_width_in_mbs_minus1+1 */
-    uint    PicWidthInSamplesL; /* PicWidthInMbs*16 */
-    uint    PicWidthInSamplesC; /* PicWIdthInMbs*8 */
-    uint    PicHeightInMapUnits; /* pic_height_in_map_units_minus1+1 */
-    uint    PicSizeInMapUnits;  /* PicWidthInMbs*PicHeightInMapUnits */
-    uint    FrameHeightInMbs;   /*(2-frame_mbs_only_flag)*PicHeightInMapUnits */
-
-    uint    SliceGroupChangeRate; /* slice_group_change_rate_minus1 + 1 */
-
-    /* access unit */
-    uint    primary_pic_type;   /* u(3), Table 7-2, kinda informative only */
-
-    /* slice data partition */
-    uint    slice_id;           /* ue(v) */
-
-    uint    UnusedShortTermFrameNum;
-    uint    PrevRefFrameNum;
-    uint    MbaffFrameFlag; /* (mb_adaptive_frame_field_flag && !field_pic_flag) */
-    uint    PicHeightInMbs; /* FrameHeightInMbs/(1+field_pic_flag) */
-    int     PicHeightInSamplesL; /* PicHeightInMbs*16 */
-    int     PicHeightInSamplesC; /* PicHeightInMbs*8 */
-    uint    PicSizeInMbs;   /* PicWidthInMbs*PicHeightInMbs */
-    uint    level_idc;
-    int     numMBs;
-    uint    MaxPicNum;
-    uint    CurrPicNum;
-    int     QSy;    /* 26+pic_init_qp_minus26+slice_qs_delta */
-    int     FilterOffsetA;
-    int     FilterOffsetB;
-    uint    MapUnitsInSliceGroup0;  /* Min(slie_group_change_cycle*SliceGroupChangeRate,PicSizeInMapUnits) */
-    /* dec_ref_pic_marking */
-    int     MaxLongTermFrameIdx;
-    int     LongTermFrameIdx;
-
-    /* POC related variables */
-    /*bool*/
-    uint    mem_mgr_ctrl_eq_5;  /* if memory_management_control_operation equal to 5 flag */
-    int     PicOrderCnt;
-    int     BottomFieldOrderCnt, TopFieldOrderCnt;
-    /* POC mode 0 */
-    int     prevPicOrderCntMsb;
-    uint    prevPicOrderCntLsb;
-    int     PicOrderCntMsb;
-    /* POC mode 1 */
-    int     prevFrameNumOffset, FrameNumOffset;
-    uint    prevFrameNum;
-    int     absFrameNum;
-    int     picOrderCntCycleCnt, frameNumInPicOrderCntCycle;
-    int     expectedDeltaPerPicOrderCntCycle;
-    int     expectedPicOrderCnt;
-
-    /* FMO */
-    int *MbToSliceGroupMap;  /* to be re-calculate at the beginning */
-
-    /* ref pic list */
-    AVCPictureData  *RefPicList0[MAX_REF_PIC_LIST]; /* list 0 */
-    AVCPictureData  *RefPicList1[MAX_REF_PIC_LIST]; /* list 1 */
-    AVCFrameStore   *refFrameList0ShortTerm[32];
-    AVCFrameStore   *refFrameList1ShortTerm[32];
-    AVCFrameStore   *refFrameListLongTerm[32];
-    int     refList0Size;
-    int     refList1Size;
-
-    /* slice data semantics*/
-    int mb_skip_run;    /* ue(v) */
-    /*uint  mb_skip_flag;*/ /* ae(v) */
-    /* uint end_of_slice_flag;*//* ae(v) */
-    /***********************************************/
-
-    /* function pointers */
-    int (*is_short_ref)(AVCPictureData *s);
-    int (*is_long_ref)(AVCPictureData *s);
-
-} AVCCommonObj;
-
-/**
-Commonly used constant arrays.
-@publishedAll
-*/
-/**
-Zigzag scan from 1-D to 2-D. */
-const static uint8 ZZ_SCAN[16] = {0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15};
-/* Zigzag scan from 1-D to 2-D output to block[24][16]. */
-const static uint8 ZZ_SCAN_BLOCK[16] = {0, 1, 16, 32, 17, 2, 3, 18, 33, 48, 49, 34, 19, 35, 50, 51};
-
-/**
-From zigzag to raster for luma DC value */
-const static uint8 ZIGZAG2RASTERDC[16] = {0, 4, 64, 128, 68, 8, 12, 72, 132, 192, 196, 136, 76, 140, 200, 204};
-
-
-/**
-Mapping from coding scan block indx to raster scan block index */
-const static int blkIdx2blkX[16] = {0, 1, 0, 1, 2, 3, 2, 3, 0, 1, 0, 1, 2, 3, 2, 3};
-const static int blkIdx2blkY[16] = {0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3};
-/** from [blk8indx][blk4indx] to raster scan index */
-const static int blkIdx2blkXY[4][4] = {{0, 1, 4, 5}, {2, 3, 6, 7}, {8, 9, 12, 13}, {10, 11, 14, 15}};
-
-/*
-Availability of the neighboring top-right block relative to the current block. */
-const static int BlkTopRight[16] = {2, 2, 2, 3, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0};
-
-/**
-Table 8-13 Specification of QPc as a function of qPI. */
-const static uint8 mapQPi2QPc[52] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
-                                     21, 22, 23, 24, 25, 26, 27, 28, 29, 29, 30, 31, 32, 32, 33, 34, 34, 35, 35, 36, 36,
-                                     37, 37, 37, 38, 38, 38, 39, 39, 39, 39
-                                    };
-
-/**
-See 8.5.5 equation (8-252 and 8-253) the definition of v matrix. */
-/* in zigzag scan */
-const static int dequant_coefres[6][16] =
-{
-    {10, 13, 13, 10, 16, 10, 13, 13, 13, 13, 16, 10, 16, 13, 13, 16},
-    {11, 14, 14, 11, 18, 11, 14, 14, 14, 14, 18, 11, 18, 14, 14, 18},
-    {13, 16, 16, 13, 20, 13, 16, 16, 16, 16, 20, 13, 20, 16, 16, 20},
-    {14, 18, 18, 14, 23, 14, 18, 18, 18, 18, 23, 14, 23, 18, 18, 23},
-    {16, 20, 20, 16, 25, 16, 20, 20, 20, 20, 25, 16, 25, 20, 20, 25},
-    {18, 23, 23, 18, 29, 18, 23, 23, 23, 23, 29, 18, 29, 23, 23, 29}
-};
-
-/**
-From jm7.6 block.c. (in zigzag scan) */
-const static int quant_coef[6][16] =
-{
-    {13107, 8066,   8066,   13107,  5243,   13107,  8066,   8066,   8066,   8066,   5243,   13107,  5243,   8066,   8066,   5243},
-    {11916, 7490,   7490,   11916,  4660,   11916,  7490,   7490,   7490,   7490,   4660,   11916,  4660,   7490,   7490,   4660},
-    {10082, 6554,   6554,   10082,  4194,   10082,  6554,   6554,   6554,   6554,   4194,   10082,  4194,   6554,   6554,   4194},
-    {9362,  5825,   5825,   9362,   3647,   9362,   5825,   5825,   5825,   5825,   3647,   9362,   3647,   5825,   5825,   3647},
-    {8192,  5243,   5243,   8192,   3355,   8192,   5243,   5243,   5243,   5243,   3355,   8192,   3355,   5243,   5243,   3355},
-    {7282,  4559,   4559,   7282,   2893,   7282,   4559,   4559,   4559,   4559,   2893,   7282,   2893,   4559,   4559,   2893}
-};
-
-/**
-Convert scan from raster scan order to block decoding order and
-from block decoding order to raster scan order. Same table!!!
-*/
-const static uint8 ras2dec[16] = {0, 1, 4, 5, 2, 3, 6, 7, 8, 9, 12, 13, 10, 11, 14, 15};
-
-/* mapping from level_idc to index map */
-const static uint8 mapLev2Idx[61] = {255, 255, 255, 255, 255, 255, 255, 255, 255, 1,
-                                     0, 1, 2, 3, 255, 255, 255, 255, 255, 255,
-                                     4, 5, 6, 255, 255, 255, 255, 255, 255, 255,
-                                     7, 8, 9, 255, 255, 255, 255, 255, 255, 255,
-                                     10, 11, 12, 255, 255, 255, 255, 255, 255, 255,
-                                     13, 14, 255, 255, 255, 255, 255, 255, 255, 255
-                                    };
-/* map back from index to Level IDC */
-const static uint8 mapIdx2Lev[MAX_LEVEL_IDX] = {10, 11, 12, 13, 20, 21, 22, 30, 31, 32, 40, 41, 42, 50, 51};
-
-/**
-from the index map to the MaxDPB value times 2 */
-const static int32 MaxDPBX2[MAX_LEVEL_IDX] = {297, 675, 1782, 1782, 1782, 3564, 6075, 6075,
-        13500, 15360, 24576, 24576, 24576, 82620, 138240
-                                             };
-
-/* map index to the max frame size */
-const static int MaxFS[MAX_LEVEL_IDX] = {99, 396, 396, 396, 396, 792, 1620, 1620, 3600, 5120,
-                                        8192, 8192, 8192, 22080, 36864
-                                        };
-
-/* map index to max MB processing rate */
-const static int32 MaxMBPS[MAX_LEVEL_IDX] = {1485, 3000, 6000, 11880, 11880, 19800, 20250, 40500,
-        108000, 216000, 245760, 245760, 491520, 589824, 983040
-                                            };
-
-/* map index to max video bit rate */
-const static uint32 MaxBR[MAX_LEVEL_IDX] = {64, 192, 384, 768, 2000, 4000, 4000, 10000, 14000, 20000,
-        20000, 50000, 50000, 135000, 240000
-                                           };
-
-/* map index to max CPB size */
-const static uint32 MaxCPB[MAX_LEVEL_IDX] = {175, 500, 1000, 2000, 2000, 4000, 4000, 10000, 14000,
-        20000, 25000, 62500, 62500, 135000, 240000
-                                            };
-
-/* map index to max vertical MV range */
-const static int MaxVmvR[MAX_LEVEL_IDX] = {64, 128, 128, 128, 128, 256, 256, 256, 512, 512, 512, 512, 512, 512, 512};
-
-#endif /*  _AVCINT_COMMON_H_ */
diff --git a/media/libstagefright/codecs/avc/common/include/avclib_common.h b/media/libstagefright/codecs/avc/common/include/avclib_common.h
deleted file mode 100644
index cbbf0c6..0000000
--- a/media/libstagefright/codecs/avc/common/include/avclib_common.h
+++ /dev/null
@@ -1,557 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-/**
-This file contains declarations of internal functions for common encoder/decoder library.
-@publishedAll
-*/
-#ifndef AVCCOMMON_LIB_H_INCLUDED
-#define AVCCOMMON_LIB_H_INCLUDED
-
-#include <stdlib.h>
-
-#ifndef AVCINT_COMMON_H_INCLUDED
-#include "avcint_common.h"
-#endif
-
-/*----------- deblock.c --------------*/
-/**
-This function performs conditional deblocking on a complete picture.
-\param "video"  "Pointer to AVCCommonObj."
-\return "AVC_SUCCESS for success and AVC_FAIL otherwise."
-*/
-OSCL_IMPORT_REF AVCStatus DeblockPicture(AVCCommonObj *video);
-
-/**
-This function performs MB-based deblocking when MB_BASED_DEBLOCK
-is defined at compile time.
-\param "video"  "Pointer to AVCCommonObj."
-\return "AVC_SUCCESS for success and AVC_FAIL otherwise."
-*/
-void MBInLoopDeblock(AVCCommonObj *video);
-
-
-/*---------- dpb.c --------------------*/
-/**
-This function is called everytime a new sequence is detected.
-\param "avcHandle"  "Pointer to AVCHandle."
-\param "video" "Pointer to AVCCommonObj."
-\param "padding"    "Flag specifying whether padding in luma component is needed (used for encoding)."
-\return "AVC_SUCCESS or AVC_FAIL."
-*/
-OSCL_IMPORT_REF AVCStatus AVCConfigureSequence(AVCHandle *avcHandle, AVCCommonObj *video, bool padding);
-
-/**
-This function allocates and initializes the decoded picture buffer structure based on
-the profile and level for the first sequence parameter set. Currently,
-it does not allow changing in profile/level for subsequent SPS.
-\param "avcHandle"  "Pointer to AVCHandle."
-\param "video" "Pointer to AVCCommonObj."
-\param "FrameHeightInMbs"   "Height of the frame in the unit of MBs."
-\param "PicWidthInMbs"  "Width of the picture in the unit of MBs."
-\param "padding"    "Flag specifying whether padding in luma component is needed (used for encoding)."
-\return "AVC_SUCCESS or AVC_FAIL."
-*/
-AVCStatus InitDPB(AVCHandle *avcHandle, AVCCommonObj *video, int FrameHeightInMbs, int PicWidthInMbs, bool padding);
-
-/**
-This function frees the DPB memory.
-\param "avcHandle"  "Pointer to AVCHandle."
-\param "video" "Pointer to AVCCommonObj."
-\return "AVC_SUCCESS or AVC_FAIL."
-*/
-OSCL_IMPORT_REF AVCStatus CleanUpDPB(AVCHandle *avcHandle, AVCCommonObj *video);
-
-/**
-This function finds empty frame in the decoded picture buffer to be used for the
-current picture, initializes the corresponding picture structure with Sl, Scb, Scr,
-width, height and pitch.
-\param "avcHandle" "Pointer to the main handle object."
-\param "video"  "Pointer to AVCCommonObj."
-\return "AVC_SUCCESS or AVC_FAIL."
-*/
-OSCL_IMPORT_REF AVCStatus DPBInitBuffer(AVCHandle *avcHandle, AVCCommonObj *video);
-/**
-This function finds empty frame in the decoded picture buffer to be used for the
-current picture, initializes the corresponding picture structure with Sl, Scb, Scr,
-width, height and pitch.
-\param "video"  "Pointer to AVCCommonObj."
-\param "CurrPicNum" "Current picture number (only used in decoder)."
-\return "AVC_SUCCESS or AVC_FAIL."
-*/
-
-OSCL_IMPORT_REF void DPBInitPic(AVCCommonObj *video, int CurrPicNum);
-
-/**
-This function releases the current frame back to the available pool for skipped frame after encoding.
-\param "avcHandle" "Pointer to the main handle object."
-\param "video" "Pointer to the AVCCommonObj."
-\return "void."
-*/
-OSCL_IMPORT_REF void DPBReleaseCurrentFrame(AVCHandle *avcHandle, AVCCommonObj *video);
-
-/**
-This function performs decoded reference picture marking process and store the current picture to the
-corresponding frame storage in the decoded picture buffer.
-\param "avcHandle" "Pointer to the main handle object."
-\param "video" "Pointer to the AVCCommonObj."
-\return "AVC_SUCCESS or AVC_FAIL."
-*/
-OSCL_IMPORT_REF AVCStatus StorePictureInDPB(AVCHandle *avcHandle, AVCCommonObj *video);
-
-/**
-This function perform sliding window operation on the reference picture lists, see subclause 8.2.5.3.
-It removes short-term ref frames with smallest FrameNumWrap from the reference list.
-\param "avcHandle" "Pointer to the main handle object."
-\param "video" "Pointer to the AVCCommonObj."
-\param "dpb"  "Pointer to the AVCDecPicBuffer."
-\return "AVC_SUCCESS or AVC_FAIL (contradicting values or scenario as in the Note in the draft)."
-*/
-AVCStatus sliding_window_process(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb);
-
-
-/**
-This function perform adaptive memory marking operation on the reference picture lists,
-see subclause 8.2.5.4. It calls other functions for specific operations.
-\param "video" "Pointer to the AVCCommonObj."
-\param "dpb"  "Pointer to the AVCDecPicBuffer."
-\param "sliceHdr"   "Pointer to the AVCSliceHeader."
-\return "AVC_SUCCESS or AVC_FAIL (contradicting values or scenario as in the Note in the draft)."
-*/
-AVCStatus adaptive_memory_marking(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb, AVCSliceHeader *sliceHdr);
-
-/**
-This function performs memory management control operation 1, marking a short-term picture
-as unused for reference. See subclause 8.2.5.4.1.
-\param "video" "Pointer to the AVCCommonObj."
-\param "dpb"  "Pointer to the AVCDecPicBuffer."
-\param "difference_of_pic_nums_minus1"  "From the syntax in dec_ref_pic_marking()."
-*/
-void MemMgrCtrlOp1(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb, int difference_of_pic_nums_minus1);
-
-/**
-This function performs memory management control operation 2, marking a long-term picture
-as unused for reference. See subclause 8.2.5.4.2.
-\param "dpb"  "Pointer to the AVCDecPicBuffer."
-\param "field_pic_flag"  "Flag whether the current picture is field or not."
-\param "long_term_pic_num"  "From the syntax in dec_ref_pic_marking()."
-*/
-void MemMgrCtrlOp2(AVCHandle *avcHandle, AVCDecPicBuffer *dpb, int long_term_pic_num);
-
-/**
-This function performs memory management control operation 3, assigning a LongTermFrameIdx to
-a short-term reference picture. See subclause 8.2.5.4.3.
-\param "video" "Pointer to the AVCCommonObj."
-\param "dpb"  "Pointer to the AVCDecPicBuffer."
-\param "difference_of_pic_nums_minus1"  "From the syntax in dec_ref_pic_marking()."
-\param "long_term_pic_num"  "From the syntax in dec_ref_pic_marking()."
-*/
-void MemMgrCtrlOp3(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb, uint difference_of_pic_nums_minus1,
-                   uint long_term_frame_idx);
-
-/**
-This function performs memory management control operation 4, getting new MaxLongTermFrameIdx.
- See subclause 8.2.5.4.4.
-\param "video" "Pointer to the AVCCommonObj."
-\param "dpb"  "Pointer to the AVCDecPicBuffer."
-\param "max_long_term_frame_idx_plus1"  "From the syntax in dec_ref_pic_marking()."
-*/
-void MemMgrCtrlOp4(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb, uint max_long_term_frame_idx_plus1);
-
-/**
-This function performs memory management control operation 5, marking all reference pictures
-as unused for reference and set MaxLongTermFrameIdx to no long-termframe indices.
- See subclause 8.2.5.4.5.
-\param "video" "Pointer to the AVCCommonObj."
-\param "dpb"  "Pointer to the AVCDecPicBuffer."
-*/
-void MemMgrCtrlOp5(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb);
-
-/**
-This function performs memory management control operation 6, assigning a long-term frame index
-to the current picture. See subclause 8.2.5.4.6.
-\param "video" "Pointer to the AVCCommonObj."
-\param "dpb"  "Pointer to the AVCDecPicBuffer."
-\param "long_term_frame_idx"  "From the syntax in dec_ref_pic_marking()."
-*/
-void MemMgrCtrlOp6(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb, uint long_term_frame_idx);
-
-/**
-This function mark a long-term ref frame with a specific frame index as unused for reference.
-\param "dpb"  "Pointer to the AVCDecPicBuffer."
-\param "long_term_frame_idx"  "To look for"
-*/
-void unmark_long_term_frame_for_reference_by_frame_idx(AVCHandle *avcHandle, AVCDecPicBuffer *dpb, uint long_term_frame_idx);
-
-/**
-This function mark a long-term ref field with a specific frame index as unused for reference except
-a frame that contains a picture with picNumX.
-\param "dpb"  "Pointer to the AVCDecPicBuffer."
-\param "long_term_frame_idx"  "To look for."
-\param "picNumX"    "To look for."
-*/
-void unmark_long_term_field_for_reference_by_frame_idx(AVCCommonObj *video, AVCDecPicBuffer *dpb, uint long_term_frame_indx, int picNumX);
-
-/**
-This function mark a frame to unused for reference.
-\param "fs" "Pointer to AVCFrameStore to be unmarked."
-*/
-void unmark_for_reference(AVCHandle *avcHandle, AVCDecPicBuffer *dpb, uint idx);
-
-void update_ref_list(AVCDecPicBuffer *dpb);
-
-
-/*---------- fmo.c --------------*/
-/**
-This function initializes flexible macroblock reordering.
-\param "video"  "Pointer to AVCCommonObj."
-\return "AVC_SUCCESS for success and AVC_FAIL otherwise."
-*/
-OSCL_IMPORT_REF AVCStatus FMOInit(AVCCommonObj *video);
-
-/**
-This function fills up an array that maps Map unit to the slice group
-following the interleaved slice group map type.
-\param "mapUnitToSliceGroupMap" "Array of slice group mapping."
-\param "run_length_minus1"  "Array of the run-length."
-\param "num_slice_groups_minus_1"   "Number of slice group minus 1."
-\param "PicSizeInMapUnit"   "Size of the picture in number Map units."
-\return "Void."
-*/
-void FmoGenerateType0MapUnitMap(int *mapUnitToSliceGroupMap, uint *run_length_minus1, uint num_slice_groups_minus1, uint PicSizeInMapUnits);
-
-/**
-This function fills up an array that maps Map unit to the slice group
-following the dispersed slice group map type.
-\param "mapUnitToSliceGroupMap" "Array of slice group mapping."
-\param "PicWidthInMbs"  "Width of the luma picture in macroblock unit."
-\param "num_slice_groups_minus_1"   "Number of slice group minus 1."
-\param "PicSizeInMapUnit"   "Size of the picture in number Map units."
-\return "Void."
-*/
-void FmoGenerateType1MapUnitMap(int *mapUnitToSliceGroupMap, int PicWidthInMbs, uint num_slice_groups_minus1, uint PicSizeInMapUnits);
-
-/**
-This function fills up an array that maps Map unit to the slice group
-following the foreground with left-over slice group map type.
-\param "pps"    "Pointer to AVCPicParamSets structure."
-\param "mapUnitToSliceGroupMap" "Array of slice group mapping."
-\param "PicWidthInMbs"  "Width of the luma picture in macroblock unit."
-\param "num_slice_groups_minus_1"   "Number of slice group minus 1."
-\param "PicSizeInMapUnit"   "Size of the picture in number Map units."
-\return "Void."
-*/
-void FmoGenerateType2MapUnitMap(AVCPicParamSet *pps, int *mapUnitToSliceGroupMap, int PicWidthInMbs,
-                                uint num_slice_groups_minus1, uint PicSizeInMapUnits);
-
-/**
-This function fills up an array that maps Map unit to the slice group
-following the box-out slice group map type.
-\param "pps"    "Pointer to AVCPicParamSets structure."
-\param "mapUnitToSliceGroupMap" "Array of slice group mapping."
-\param "PicWidthInMbs"  "Width of the luma picture in macroblock unit."
-\return "Void."
-*/
-void FmoGenerateType3MapUnitMap(AVCCommonObj *video, AVCPicParamSet* pps, int *mapUnitToSliceGroupMap,
-                                int PicWidthInMbs);
-
-/**
-This function fills up an array that maps Map unit to the slice group
-following the raster scan slice group map type.
-\param "mapUnitToSliceGroupMap" "Array of slice group mapping."
-\param "MapUnitsInSliceGroup0"  "Derived in subclause 7.4.3."
-\param "slice_group_change_direction_flag"  "A value from the slice header."
-\param "PicSizeInMapUnit"   "Size of the picture in number Map units."
-\return "void"
-*/
-void FmoGenerateType4MapUnitMap(int *mapUnitToSliceGroupMap, int MapUnitsInSliceGroup0,
-                                int slice_group_change_direction_flag, uint PicSizeInMapUnits);
-
-/**
-This function fills up an array that maps Map unit to the slice group
-following wipe slice group map type.
-\param "mapUnitToSliceGroupMap" "Array of slice group mapping."
-\param "video"  "Pointer to AVCCommonObj structure."
-\param "slice_group_change_direction_flag"  "A value from the slice header."
-\param "PicSizeInMapUnit"   "Size of the picture in number Map units."
-\return "void"
-*/
-void FmoGenerateType5MapUnitMap(int *mapUnitsToSliceGroupMap, AVCCommonObj *video,
-                                int slice_group_change_direction_flag, uint PicSizeInMapUnits);
-
-/**
-This function fills up an array that maps Map unit to the slice group
-following wipe slice group map type.
-\param "mapUnitToSliceGroupMap" "Array of slice group mapping."
-\param "slice_group_id" "Array of slice_group_id from AVCPicParamSet structure."
-\param "PicSizeInMapUnit"   "Size of the picture in number Map units."
-\return "void"
-*/
-void FmoGenerateType6MapUnitMap(int *mapUnitsToSliceGroupMap, int *slice_group_id, uint PicSizeInMapUnits);
-
-/*------------- itrans.c --------------*/
-/**
-This function performs transformation of the Intra16x16DC value according to
-subclause 8.5.6.
-\param "block"  "Pointer to the video->block[0][0][0]."
-\param "QPy"    "Quantization parameter."
-\return "void."
-*/
-void Intra16DCTrans(int16 *block, int Qq, int Rq);
-
-/**
-This function performs transformation of a 4x4 block according to
-subclause 8.5.8.
-\param "block"  "Pointer to the origin of transform coefficient area."
-\param "pred"   "Pointer to the origin of predicted area."
-\param "cur"    "Pointer to the origin of the output area."
-\param "width"  "Pitch of cur."
-\return "void."
-*/
-void itrans(int16 *block, uint8 *pred, uint8 *cur, int width);
-
-/*
-This function is the same one as itrans except for chroma.
-\param "block"  "Pointer to the origin of transform coefficient area."
-\param "pred"   "Pointer to the origin of predicted area."
-\param "cur"    "Pointer to the origin of the output area."
-\param "width"  "Pitch of cur."
-\return "void."
-*/
-void ictrans(int16 *block, uint8 *pred, uint8 *cur, int width);
-
-/**
-This function performs transformation of the DCChroma value according to
-subclause 8.5.7.
-\param "block"  "Pointer to the video->block[0][0][0]."
-\param "QPc"    "Quantization parameter."
-\return "void."
-*/
-void ChromaDCTrans(int16 *block, int Qq, int Rq);
-
-/**
-This function copies a block from pred to cur.
-\param "pred"   "Pointer to prediction block."
-\param "cur"    "Pointer to the current YUV block."
-\param "width"  "Pitch of cur memory."
-\param "pred_pitch" "Pitch for pred memory.
-\return "void."
-*/
-void copy_block(uint8 *pred, uint8 *cur, int width, int pred_pitch);
-
-/*--------- mb_access.c ----------------*/
-/**
-This function initializes the neighboring information before start macroblock decoding.
-\param "video"  "Pointer to AVCCommonObj."
-\param "mbNum"  "The current macroblock index."
-\param "currMB" "Pointer to the current AVCMacroblock structure."
-\return "void"
-*/
-OSCL_IMPORT_REF void InitNeighborAvailability(AVCCommonObj *video, int mbNum);
-
-/**
-This function checks whether the requested neighboring macroblock is available.
-\param "MbToSliceGroupMap"  "Array containing the slice group ID mapping to MB index."
-\param "PicSizeInMbs"   "Size of the picture in number of MBs."
-\param "mbAddr"     "Neighboring macroblock index to check."
-\param "currMbAddr" "Current macroblock index."
-\return "TRUE if the neighboring MB is available, FALSE otherwise."
-*/
-bool mb_is_available(AVCMacroblock *mblock, uint PicSizeInMbs, int mbAddr, int currMbAddr);
-
-/**
-This function performs prediction of the nonzero coefficient for a luma block (i,j).
-\param "video"  "Pointer to AVCCommonObj."
-\param "i"  "Block index, horizontal."
-\param "j"  "Block index, vertical."
-\return "Predicted number of nonzero coefficient."
-*/
-OSCL_IMPORT_REF int predict_nnz(AVCCommonObj *video, int i, int j);
-
-/**
-This function performs prediction of the nonzero coefficient for a chroma block (i,j).
-\param "video"  "Pointer to AVCCommonObj."
-\param "i"  "Block index, horizontal."
-\param "j"  "Block index, vertical."
-\return "Predicted number of nonzero coefficient."
-*/
-OSCL_IMPORT_REF int predict_nnz_chroma(AVCCommonObj *video, int i, int j);
-
-/**
-This function calculates the predicted motion vectors for the current macroblock.
-\param "video" "Pointer to AVCCommonObj."
-\param "encFlag"    "Boolean whether this function is used by encoder or decoder."
-\return "void."
-*/
-OSCL_IMPORT_REF void GetMotionVectorPredictor(AVCCommonObj *video, int encFlag);
-
-/*---------- reflist.c -----------------*/
-/**
-This function initializes reference picture list used in INTER prediction
-at the beginning of each slice decoding. See subclause 8.2.4.
-\param "video"  "Pointer to AVCCommonObj."
-\return "void"
-Output is video->RefPicList0, video->RefPicList1, video->refList0Size and video->refList1Size.
-*/
-OSCL_IMPORT_REF void RefListInit(AVCCommonObj *video);
-
-/**
-This function generates picture list from frame list. Used when current picture is field.
-see subclause 8.2.4.2.5.
-\param "video"  "Pointer to AVCCommonObj."
-\param "IsL1"   "Is L1 list?"
-\param "long_term"  "Is long-term prediction?"
-\return "void"
-*/
-void    GenPicListFromFrameList(AVCCommonObj *video, int IsL1, int long_term);
-
-/**
-This function performs reference picture list reordering according to the
-ref_pic_list_reordering() syntax. See subclause 8.2.4.3.
-\param "video"  "Pointer to AVCCommonObj."
-\return "AVC_SUCCESS or AVC_FAIL"
-Output is video->RefPicList0, video->RefPicList1, video->refList0Size and video->refList1Size.
-*/
-OSCL_IMPORT_REF AVCStatus ReOrderList(AVCCommonObj *video);
-
-/**
-This function performs reference picture list reordering according to the
-ref_pic_list_reordering() syntax regardless of list 0 or list 1. See subclause 8.2.4.3.
-\param "video"  "Pointer to AVCCommonObj."
-\param "isL1"   "Is list 1 or not."
-\return "AVC_SUCCESS or AVC_FAIL"
-Output is video->RefPicList0 and video->refList0Size or video->RefPicList1 and video->refList1Size.
-*/
-AVCStatus ReorderRefPicList(AVCCommonObj *video, int isL1);
-
-/**
-This function performs reordering process of reference picture list for short-term pictures.
-See subclause 8.2.4.3.1.
-\param "video"  "Pointer to AVCCommonObj."
-\param "picNumLX"   "picNumLX of an entry in the reference list."
-\param "refIdxLX"   "Pointer to the current entry index in the reference."
-\param "isL1"       "Is list 1 or not."
-\return "AVC_SUCCESS or AVC_FAIL"
-*/
-AVCStatus ReorderShortTerm(AVCCommonObj *video, int picNumLX, int *refIdxLX, int isL1);
-
-/**
-This function performs reordering process of reference picture list for long-term pictures.
-See subclause 8.2.4.3.2.
-\param "video"  "Pointer to AVCCommonObj."
-\param "LongTermPicNum" "LongTermPicNum of an entry in the reference list."
-\param "refIdxLX"   "Pointer to the current entry index in the reference."
-\param "isL1"       "Is list 1 or not."
-\return "AVC_SUCCESS or AVC_FAIL"
-*/
-AVCStatus ReorderLongTerm(AVCCommonObj *video, int LongTermPicNum, int *refIdxLX, int isL1);
-
-/**
-This function gets the pictures in DPB according to the PicNum.
-\param "video"  "Pointer to AVCCommonObj."
-\param "picNum" "PicNum of the picture we are looking for."
-\return "Pointer to the AVCPictureData or NULL if not found"
-*/
-AVCPictureData*  GetShortTermPic(AVCCommonObj *video, int picNum);
-
-/**
-This function gets the pictures in DPB according to the LongtermPicNum.
-\param "video"  "Pointer to AVCCommonObj."
-\param "LongtermPicNum" "LongtermPicNum of the picture we are looking for."
-\return "Pointer to the AVCPictureData."
-*/
-AVCPictureData*  GetLongTermPic(AVCCommonObj *video, int LongtermPicNum);
-
-/**
-This function indicates whether the picture is used for short-term reference or not.
-\param "s"  "Pointer to AVCPictureData."
-\return "1 if it is used for short-term, 0 otherwise."
-*/
-int is_short_ref(AVCPictureData *s);
-
-/**
-This function indicates whether the picture is used for long-term reference or not.
-\param "s"  "Pointer to AVCPictureData."
-\return "1 if it is used for long-term, 0 otherwise."
-*/
-int is_long_ref(AVCPictureData *s);
-
-/**
-This function sorts array of pointers to AVCPictureData in descending order of
-the PicNum value.
-\param "data"   "Array of pointers to AVCPictureData."
-\param "num"    "Size of the array."
-\return "void"
-*/
-void SortPicByPicNum(AVCPictureData *data[], int num);
-
-/**
-This function sorts array of pointers to AVCPictureData in ascending order of
-the PicNum value.
-\param "data"   "Array of pointers to AVCPictureData."
-\param "num"    "Size of the array."
-\return "void"
-*/
-void SortPicByPicNumLongTerm(AVCPictureData *data[], int num);
-
-/**
-This function sorts array of pointers to AVCFrameStore in descending order of
-the FrameNumWrap value.
-\param "data"   "Array of pointers to AVCFrameStore."
-\param "num"    "Size of the array."
-\return "void"
-*/
-void SortFrameByFrameNumWrap(AVCFrameStore *data[], int num);
-
-/**
-This function sorts array of pointers to AVCFrameStore in ascending order of
-the LongTermFrameIdx value.
-\param "data"   "Array of pointers to AVCFrameStore."
-\param "num"    "Size of the array."
-\return "void"
-*/
-void SortFrameByLTFrameIdx(AVCFrameStore *data[], int num);
-
-/**
-This function sorts array of pointers to AVCPictureData in descending order of
-the PicOrderCnt value.
-\param "data"   "Array of pointers to AVCPictureData."
-\param "num"    "Size of the array."
-\return "void"
-*/
-void SortPicByPOC(AVCPictureData *data[], int num, int descending);
-
-/**
-This function sorts array of pointers to AVCPictureData in ascending order of
-the LongTermPicNum value.
-\param "data"   "Array of pointers to AVCPictureData."
-\param "num"    "Size of the array."
-\return "void"
-*/
-void SortPicByLTPicNum(AVCPictureData *data[], int num);
-
-/**
-This function sorts array of pointers to AVCFrameStore in descending order of
-the PicOrderCnt value.
-\param "data"   "Array of pointers to AVCFrameStore."
-\param "num"    "Size of the array."
-\return "void"
-*/
-void SortFrameByPOC(AVCFrameStore *data[], int num, int descending);
-
-
-#endif /* _AVCCOMMON_LIB_H_ */
diff --git a/media/libstagefright/codecs/avc/common/src/deblock.cpp b/media/libstagefright/codecs/avc/common/src/deblock.cpp
deleted file mode 100644
index 5f8b693..0000000
--- a/media/libstagefright/codecs/avc/common/src/deblock.cpp
+++ /dev/null
@@ -1,1667 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-
-#include <string.h>
-
-#include "avclib_common.h"
-
-#define MAX_QP 51
-#define MB_BLOCK_SIZE 16
-
-// NOTE: these 3 tables are for funtion GetStrength() only
-const static int ININT_STRENGTH[4] = {0x04040404, 0x03030303, 0x03030303, 0x03030303};
-
-
-// NOTE: these 3 tables are for funtion EdgeLoop() only
-// NOTE: to change the tables below for instance when the QP doubling is changed from 6 to 8 values
-
-const static int ALPHA_TABLE[52]  = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 5, 6,  7, 8, 9, 10, 12, 13, 15, 17,  20, 22, 25, 28, 32, 36, 40, 45,  50, 56, 63, 71, 80, 90, 101, 113,  127, 144, 162, 182, 203, 226, 255, 255} ;
-const static int BETA_TABLE[52]   = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 3,  3, 3, 3, 4, 4, 4, 6, 6,   7, 7, 8, 8, 9, 9, 10, 10,  11, 11, 12, 12, 13, 13, 14, 14,   15, 15, 16, 16, 17, 17, 18, 18} ;
-const static int CLIP_TAB[52][5]  =
-{
-    { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0},
-    { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0},
-    { 0, 0, 0, 0, 0}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 1, 1, 1}, { 0, 0, 1, 1, 1}, { 0, 1, 1, 1, 1},
-    { 0, 1, 1, 1, 1}, { 0, 1, 1, 1, 1}, { 0, 1, 1, 1, 1}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 2, 3, 3},
-    { 0, 1, 2, 3, 3}, { 0, 2, 2, 3, 3}, { 0, 2, 2, 4, 4}, { 0, 2, 3, 4, 4}, { 0, 2, 3, 4, 4}, { 0, 3, 3, 5, 5}, { 0, 3, 4, 6, 6}, { 0, 3, 4, 6, 6},
-    { 0, 4, 5, 7, 7}, { 0, 4, 5, 8, 8}, { 0, 4, 6, 9, 9}, { 0, 5, 7, 10, 10}, { 0, 6, 8, 11, 11}, { 0, 6, 8, 13, 13}, { 0, 7, 10, 14, 14}, { 0, 8, 11, 16, 16},
-    { 0, 9, 12, 18, 18}, { 0, 10, 13, 20, 20}, { 0, 11, 15, 23, 23}, { 0, 13, 17, 25, 25}
-};
-
-// NOTE: this table is only QP clipping, index = QP + video->FilterOffsetA/B, clipped to [0, 51]
-//       video->FilterOffsetA/B is in {-12, 12]
-const static int QP_CLIP_TAB[76] =
-{
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,              // [-12, 0]
-    1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
-    13, 14, 15, 16, 17, 18, 19, 20, 21,
-    22, 23, 24, 25, 26, 27, 28, 29, 30,
-    31, 32, 33, 34, 35, 36, 37, 38, 39,
-    40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, // [1, 51]
-    51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51      // [52,63]
-};
-
-static void DeblockMb(AVCCommonObj *video, int mb_x, int mb_y, uint8 *SrcY, uint8 *SrcU, uint8 *SrcV);
-//static void GetStrength(AVCCommonObj *video, uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir, int edge);
-static void GetStrength_Edge0(uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir);
-static void GetStrength_VerticalEdges(uint8 *Strength, AVCMacroblock* MbQ);
-static void GetStrength_HorizontalEdges(uint8 Strength[12], AVCMacroblock* MbQ);
-static void EdgeLoop_Luma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch);
-static void EdgeLoop_Luma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch);
-static void EdgeLoop_Chroma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch);
-static void EdgeLoop_Chroma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch);
-
-/*
- *****************************************************************************************
- * \brief Filter all macroblocks in order of increasing macroblock address.
- *****************************************************************************************
-*/
-
-OSCL_EXPORT_REF AVCStatus DeblockPicture(AVCCommonObj *video)
-{
-    uint   i, j;
-    int   pitch = video->currPic->pitch, pitch_c, width;
-    uint8 *SrcY, *SrcU, *SrcV;
-
-    SrcY = video->currPic->Sl;      // pointers to source
-    SrcU = video->currPic->Scb;
-    SrcV = video->currPic->Scr;
-    pitch_c = pitch >> 1;
-    width = video->currPic->width;
-
-    for (i = 0; i < video->PicHeightInMbs; i++)
-    {
-        for (j = 0; j < video->PicWidthInMbs; j++)
-        {
-            DeblockMb(video, j, i, SrcY, SrcU, SrcV);
-            // update SrcY, SrcU, SrcV
-            SrcY += MB_BLOCK_SIZE;
-            SrcU += (MB_BLOCK_SIZE >> 1);
-            SrcV += (MB_BLOCK_SIZE >> 1);
-        }
-
-        SrcY += ((pitch << 4) - width);
-        SrcU += ((pitch_c << 3) - (width >> 1));
-        SrcV += ((pitch_c << 3) - (width >> 1));
-    }
-
-    return AVC_SUCCESS;
-}
-
-#ifdef MB_BASED_DEBLOCK
-/*
- *****************************************************************************************
- * \brief Filter one macroblocks in a fast macroblock memory and copy it to frame
- *****************************************************************************************
-*/
-void MBInLoopDeblock(AVCCommonObj *video)
-{
-    AVCPictureData *currPic = video->currPic;
-#ifdef USE_PRED_BLOCK
-    uint8 *predCb, *predCr, *pred_block;
-    int i, j, dst_width, dst_height, dst_widthc, dst_heightc;
-#endif
-    int pitch = currPic->pitch;
-    int x_pos = video->mb_x;
-    int y_pos = video->mb_y;
-    uint8 *curL, *curCb, *curCr;
-    int offset;
-
-    offset = (y_pos << 4) * pitch;
-
-    curL = currPic->Sl + offset + (x_pos << 4);
-
-    offset >>= 2;
-    offset += (x_pos << 3);
-
-    curCb = currPic->Scb + offset;
-    curCr = currPic->Scr + offset;
-
-#ifdef USE_PRED_BLOCK
-    pred_block = video->pred;
-
-    /* 1. copy neighboring pixels from frame to the video->pred_block */
-    if (y_pos) /* not the 0th row */
-    {
-        /* copy to the top 4 lines of the macroblock */
-        curL -= (pitch << 2); /* go back 4 lines */
-
-        memcpy(pred_block + 4, curL, 16);
-        curL += pitch;
-        memcpy(pred_block + 24, curL, 16);
-        curL += pitch;
-        memcpy(pred_block + 44, curL, 16);
-        curL += pitch;
-        memcpy(pred_block + 64, curL, 16);
-        curL += pitch;
-
-        curCb -= (pitch << 1); /* go back 4 lines chroma */
-        curCr -= (pitch << 1);
-
-        pred_block += 400;
-
-        memcpy(pred_block + 4, curCb, 8);
-        curCb += (pitch >> 1);
-        memcpy(pred_block + 16, curCb, 8);
-        curCb += (pitch >> 1);
-        memcpy(pred_block + 28, curCb, 8);
-        curCb += (pitch >> 1);
-        memcpy(pred_block + 40, curCb, 8);
-        curCb += (pitch >> 1);
-
-        pred_block += 144;
-        memcpy(pred_block + 4, curCr, 8);
-        curCr += (pitch >> 1);
-        memcpy(pred_block + 16, curCr, 8);
-        curCr += (pitch >> 1);
-        memcpy(pred_block + 28, curCr, 8);
-        curCr += (pitch >> 1);
-        memcpy(pred_block + 40, curCr, 8);
-        curCr += (pitch >> 1);
-
-        pred_block = video->pred;
-    }
-
-    /* 2. perform deblocking. */
-    DeblockMb(video, x_pos, y_pos, pred_block + 84, pred_block + 452, pred_block + 596);
-
-    /* 3. copy it back to the frame and update pred_block */
-    predCb = pred_block + 400;
-    predCr = predCb + 144;
-
-    /* find the range of the block inside pred_block to be copied back */
-    if (y_pos)  /* the first row */
-    {
-        curL -= (pitch << 2);
-        curCb -= (pitch << 1);
-        curCr -= (pitch << 1);
-
-        dst_height = 20;
-        dst_heightc = 12;
-    }
-    else
-    {
-        pred_block += 80;
-        predCb += 48;
-        predCr += 48;
-        dst_height = 16;
-        dst_heightc = 8;
-    }
-
-    if (x_pos) /* find the width */
-    {
-        curL -= 4;
-        curCb -= 4;
-        curCr -= 4;
-        if (x_pos == (int)(video->PicWidthInMbs - 1))
-        {
-            dst_width = 20;
-            dst_widthc = 12;
-        }
-        else
-        {
-            dst_width = 16;
-            dst_widthc = 8;
-        }
-    }
-    else
-    {
-        pred_block += 4;
-        predCb += 4;
-        predCr += 4;
-        dst_width = 12;
-        dst_widthc = 4;
-    }
-
-    /* perform copy */
-    for (j = 0; j < dst_height; j++)
-    {
-        memcpy(curL, pred_block, dst_width);
-        curL += pitch;
-        pred_block += 20;
-    }
-    for (j = 0; j < dst_heightc; j++)
-    {
-        memcpy(curCb, predCb, dst_widthc);
-        memcpy(curCr, predCr, dst_widthc);
-        curCb += (pitch >> 1);
-        curCr += (pitch >> 1);
-        predCb += 12;
-        predCr += 12;
-    }
-
-    if (x_pos != (int)(video->PicWidthInMbs - 1)) /* now copy from the right-most 4 columns to the left-most 4 columns */
-    {
-        pred_block = video->pred;
-        for (i = 0; i < 20; i += 4)
-        {
-            *((uint32*)pred_block) = *((uint32*)(pred_block + 16));
-            pred_block += 20;
-            *((uint32*)pred_block) = *((uint32*)(pred_block + 16));
-            pred_block += 20;
-            *((uint32*)pred_block) = *((uint32*)(pred_block + 16));
-            pred_block += 20;
-            *((uint32*)pred_block) = *((uint32*)(pred_block + 16));
-            pred_block += 20;
-        }
-
-        for (i = 0; i < 24; i += 4)
-        {
-            *((uint32*)pred_block) = *((uint32*)(pred_block + 8));
-            pred_block += 12;
-            *((uint32*)pred_block) = *((uint32*)(pred_block + 8));
-            pred_block += 12;
-            *((uint32*)pred_block) = *((uint32*)(pred_block + 8));
-            pred_block += 12;
-            *((uint32*)pred_block) = *((uint32*)(pred_block + 8));
-            pred_block += 12;
-        }
-
-    }
-#else
-    DeblockMb(video, x_pos, y_pos, curL, curCb, curCr);
-#endif
-
-    return ;
-}
-#endif
-
-/*
- *****************************************************************************************
- * \brief Deblocking filter for one macroblock.
- *****************************************************************************************
- */
-
-void DeblockMb(AVCCommonObj *video, int mb_x, int mb_y, uint8 *SrcY, uint8 *SrcU, uint8 *SrcV)
-{
-    AVCMacroblock *MbP, *MbQ;
-    int     edge, QP, QPC;
-    int     filterLeftMbEdgeFlag = (mb_x != 0);
-    int     filterTopMbEdgeFlag  = (mb_y != 0);
-    int     pitch = video->currPic->pitch;
-    int     indexA, indexB;
-    int     *tmp;
-    int     Alpha, Beta, Alpha_c, Beta_c;
-    int     mbNum = mb_y * video->PicWidthInMbs + mb_x;
-    int     *clipTable, *clipTable_c, *qp_clip_tab;
-    uint8   Strength[16];
-    void*     str;
-
-    MbQ = &(video->mblock[mbNum]);      // current Mb
-
-
-    // If filter is disabled, return
-    if (video->sliceHdr->disable_deblocking_filter_idc == 1) return;
-
-    if (video->sliceHdr->disable_deblocking_filter_idc == 2)
-    {
-        // don't filter at slice boundaries
-        filterLeftMbEdgeFlag = mb_is_available(video->mblock, video->PicSizeInMbs, mbNum - 1, mbNum);
-        filterTopMbEdgeFlag  = mb_is_available(video->mblock, video->PicSizeInMbs, mbNum - video->PicWidthInMbs, mbNum);
-    }
-
-    /* NOTE: edge=0 and edge=1~3 are separate cases because of the difference of MbP, index A and indexB calculation */
-    /*       for edge = 1~3, MbP, indexA and indexB remain the same, and thus there is no need to re-calculate them for each edge */
-
-    qp_clip_tab = (int *)QP_CLIP_TAB + 12;
-
-    /* 1.VERTICAL EDGE + MB BOUNDARY (edge = 0) */
-    if (filterLeftMbEdgeFlag)
-    {
-        MbP = MbQ - 1;
-        //GetStrength(video, Strength, MbP, MbQ, 0, 0); // Strength for 4 blks in 1 stripe, 0 => vertical edge
-        GetStrength_Edge0(Strength, MbP, MbQ, 0);
-
-        str = (void*)Strength; //de-ref type-punned pointer fix
-        if (*((uint32*)str))    // only if one of the 4 Strength bytes is != 0
-        {
-            QP = (MbP->QPy + MbQ->QPy + 1) >> 1; // Average QP of the two blocks;
-            indexA = QP + video->FilterOffsetA;
-            indexB = QP + video->FilterOffsetB;
-            indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
-            indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
-
-            Alpha  = ALPHA_TABLE[indexA];
-            Beta = BETA_TABLE[indexB];
-            clipTable = (int *) CLIP_TAB[indexA];
-
-            if (Alpha > 0 && Beta > 0)
-#ifdef USE_PRED_BLOCK
-                EdgeLoop_Luma_vertical(SrcY, Strength,  Alpha, Beta, clipTable, 20);
-#else
-                EdgeLoop_Luma_vertical(SrcY, Strength,  Alpha, Beta, clipTable, pitch);
-#endif
-
-            QPC = (MbP->QPc + MbQ->QPc + 1) >> 1;
-            indexA = QPC + video->FilterOffsetA;
-            indexB = QPC + video->FilterOffsetB;
-            indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
-            indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
-
-            Alpha  = ALPHA_TABLE[indexA];
-            Beta = BETA_TABLE[indexB];
-            clipTable = (int *) CLIP_TAB[indexA];
-            if (Alpha > 0 && Beta > 0)
-            {
-#ifdef USE_PRED_BLOCK
-                EdgeLoop_Chroma_vertical(SrcU, Strength, Alpha, Beta, clipTable, 12);
-                EdgeLoop_Chroma_vertical(SrcV, Strength, Alpha, Beta, clipTable, 12);
-#else
-                EdgeLoop_Chroma_vertical(SrcU, Strength, Alpha, Beta, clipTable, pitch >> 1);
-                EdgeLoop_Chroma_vertical(SrcV, Strength, Alpha, Beta, clipTable, pitch >> 1);
-#endif
-            }
-        }
-
-    } /* end of: if(filterLeftMbEdgeFlag) */
-
-    /* 2.VERTICAL EDGE (no boundary), the edges are all inside a MB */
-    /* First calculate the necesary parameters all at once, outside the loop */
-    MbP = MbQ;
-
-    indexA = MbQ->QPy + video->FilterOffsetA;
-    indexB = MbQ->QPy + video->FilterOffsetB;
-    //  index
-    indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
-    indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
-
-    Alpha = ALPHA_TABLE[indexA];
-    Beta = BETA_TABLE[indexB];
-    clipTable = (int *)CLIP_TAB[indexA];
-
-    /* Save Alpha,  Beta and clipTable for future use, with the obselete variables filterLeftMbEdgeFlag, mbNum amd tmp */
-    filterLeftMbEdgeFlag = Alpha;
-    mbNum = Beta;
-    tmp = clipTable;
-
-    indexA = MbQ->QPc + video->FilterOffsetA;
-    indexB = MbQ->QPc + video->FilterOffsetB;
-    indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
-    indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
-
-    Alpha_c  = ALPHA_TABLE[indexA];
-    Beta_c = BETA_TABLE[indexB];
-    clipTable_c = (int *)CLIP_TAB[indexA];
-
-    GetStrength_VerticalEdges(Strength + 4, MbQ); // Strength for 4 blks in 1 stripe, 0 => vertical edge
-
-    for (edge = 1; edge < 4; edge++)  // 4 vertical strips of 16 pel
-    {
-        //GetStrength_VerticalEdges(video, Strength, MbP, MbQ, 0, edge); // Strength for 4 blks in 1 stripe, 0 => vertical edge
-        if (*((int*)(Strength + (edge << 2))))   // only if one of the 4 Strength bytes is != 0
-        {
-            if (Alpha > 0 && Beta > 0)
-#ifdef USE_PRED_BLOCK
-                EdgeLoop_Luma_vertical(SrcY + (edge << 2), Strength + (edge << 2),  Alpha, Beta, clipTable, 20);
-#else
-                EdgeLoop_Luma_vertical(SrcY + (edge << 2), Strength + (edge << 2),  Alpha, Beta, clipTable, pitch);
-#endif
-
-            if (!(edge & 1) && Alpha_c > 0 && Beta_c > 0)
-            {
-#ifdef USE_PRED_BLOCK
-                EdgeLoop_Chroma_vertical(SrcU + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12);
-                EdgeLoop_Chroma_vertical(SrcV + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12);
-#else
-                EdgeLoop_Chroma_vertical(SrcU + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1);
-                EdgeLoop_Chroma_vertical(SrcV + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1);
-#endif
-            }
-        }
-
-    } //end edge
-
-
-
-    /* 3.HORIZONTAL EDGE + MB BOUNDARY (edge = 0) */
-    if (filterTopMbEdgeFlag)
-    {
-        MbP = MbQ - video->PicWidthInMbs;
-        //GetStrength(video, Strength, MbP, MbQ, 1, 0); // Strength for 4 blks in 1 stripe, 0 => vertical edge
-        GetStrength_Edge0(Strength, MbP, MbQ, 1);
-        str = (void*)Strength; //de-ref type-punned pointer fix
-        if (*((uint32*)str))    // only if one of the 4 Strength bytes is != 0
-        {
-            QP = (MbP->QPy + MbQ->QPy + 1) >> 1; // Average QP of the two blocks;
-            indexA = QP + video->FilterOffsetA;
-            indexB = QP + video->FilterOffsetB;
-            indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
-            indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
-
-            Alpha  = ALPHA_TABLE[indexA];
-            Beta = BETA_TABLE[indexB];
-            clipTable = (int *)CLIP_TAB[indexA];
-
-            if (Alpha > 0 && Beta > 0)
-            {
-#ifdef USE_PRED_BLOCK
-                EdgeLoop_Luma_horizontal(SrcY, Strength,  Alpha, Beta, clipTable, 20);
-#else
-                EdgeLoop_Luma_horizontal(SrcY, Strength,  Alpha, Beta, clipTable, pitch);
-#endif
-            }
-
-            QPC = (MbP->QPc + MbQ->QPc + 1) >> 1;
-            indexA = QPC + video->FilterOffsetA;
-            indexB = QPC + video->FilterOffsetB;
-            indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
-            indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
-
-            Alpha  = ALPHA_TABLE[indexA];
-            Beta = BETA_TABLE[indexB];
-            clipTable = (int *)CLIP_TAB[indexA];
-            if (Alpha > 0 && Beta > 0)
-            {
-#ifdef USE_PRED_BLOCK
-                EdgeLoop_Chroma_horizontal(SrcU, Strength, Alpha, Beta, clipTable, 12);
-                EdgeLoop_Chroma_horizontal(SrcV, Strength, Alpha, Beta, clipTable, 12);
-#else
-                EdgeLoop_Chroma_horizontal(SrcU, Strength, Alpha, Beta, clipTable, pitch >> 1);
-                EdgeLoop_Chroma_horizontal(SrcV, Strength, Alpha, Beta, clipTable, pitch >> 1);
-#endif
-            }
-        }
-
-    } /* end of: if(filterTopMbEdgeFlag) */
-
-
-    /* 4.HORIZONTAL EDGE (no boundary), the edges are inside a MB */
-    MbP = MbQ;
-
-    /* Recover Alpha,  Beta and clipTable for edge!=0 with the variables filterLeftMbEdgeFlag, mbNum and tmp */
-    /* Note that Alpha_c, Beta_c and clipTable_c for chroma is already calculated */
-    Alpha = filterLeftMbEdgeFlag;
-    Beta = mbNum;
-    clipTable = tmp;
-
-    GetStrength_HorizontalEdges(Strength + 4, MbQ); // Strength for 4 blks in 1 stripe, 0 => vertical edge
-
-    for (edge = 1; edge < 4; edge++)  // 4 horicontal strips of 16 pel
-    {
-        //GetStrength(video, Strength, MbP, MbQ, 1, edge); // Strength for 4 blks in 1 stripe   1 => horizontal edge
-        if (*((int*)(Strength + (edge << 2)))) // only if one of the 4 Strength bytes is != 0
-        {
-            if (Alpha > 0 && Beta > 0)
-            {
-#ifdef USE_PRED_BLOCK
-                EdgeLoop_Luma_horizontal(SrcY + (edge << 2)*20, Strength + (edge << 2),  Alpha, Beta, clipTable, 20);
-#else
-                EdgeLoop_Luma_horizontal(SrcY + (edge << 2)*pitch, Strength + (edge << 2),  Alpha, Beta, clipTable, pitch);
-#endif
-            }
-
-            if (!(edge & 1) && Alpha_c > 0 && Beta_c > 0)
-            {
-#ifdef USE_PRED_BLOCK
-                EdgeLoop_Chroma_horizontal(SrcU + (edge << 1)*12, Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12);
-                EdgeLoop_Chroma_horizontal(SrcV + (edge << 1)*12, Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12);
-#else
-                EdgeLoop_Chroma_horizontal(SrcU + (edge << 1)*(pitch >> 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1);
-                EdgeLoop_Chroma_horizontal(SrcV + (edge << 1)*(pitch >> 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1);
-#endif
-            }
-        }
-
-    } //end edge
-
-    return;
-}
-
-/*
- *****************************************************************************************************
- * \brief   returns a buffer of 4 Strength values for one stripe in a mb (for different Frame types)
- *****************************************************************************************************
-*/
-
-void GetStrength_Edge0(uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir)
-{
-    int tmp;
-    int16 *ptrQ, *ptrP;
-    void* vptr;
-    uint8 *pStrength;
-    void* refIdx;
-
-    if (MbP->mbMode == AVC_I4 || MbP->mbMode == AVC_I16 ||
-            MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16)
-    {
-
-        *((int*)Strength) = ININT_STRENGTH[0];      // Start with Strength=3. or Strength=4 for Mb-edge
-
-    }
-    else // if not intra or SP-frame
-    {
-        *((int*)Strength) = 0;
-
-        if (dir == 0)  // Vertical Edge 0
-        {
-
-            //1. Check the ref_frame_id
-            refIdx = (void*) MbQ->RefIdx; //de-ref type-punned pointer fix
-            ptrQ = (int16*)refIdx;
-            refIdx = (void*)MbP->RefIdx; //de-ref type-punned pointer fix
-            ptrP = (int16*)refIdx;
-            pStrength = Strength;
-            if (ptrQ[0] != ptrP[1]) pStrength[0] = 1;
-            if (ptrQ[2] != ptrP[3]) pStrength[2] = 1;
-            pStrength[1] = pStrength[0];
-            pStrength[3] = pStrength[2];
-
-            //2. Check the non-zero coeff blocks (4x4)
-            if (MbQ->nz_coeff[0] != 0 || MbP->nz_coeff[3] != 0) pStrength[0] = 2;
-            if (MbQ->nz_coeff[4] != 0 || MbP->nz_coeff[7] != 0) pStrength[1] = 2;
-            if (MbQ->nz_coeff[8] != 0 || MbP->nz_coeff[11] != 0) pStrength[2] = 2;
-            if (MbQ->nz_coeff[12] != 0 || MbP->nz_coeff[15] != 0) pStrength[3] = 2;
-
-            //3. Only need to check the mv difference
-            vptr = (void*)MbQ->mvL0;  // for deref type-punned pointer
-            ptrQ = (int16*)vptr;
-            ptrP = (int16*)(MbP->mvL0 + 3); // points to 4x4 block #3 (the 4th column)
-
-            // 1st blk
-            if (*pStrength == 0)
-            {
-                // check |mv difference| >= 4
-                tmp = *ptrQ++ - *ptrP++;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-
-                tmp = *ptrQ-- - *ptrP--;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-            }
-
-            pStrength++;
-            ptrQ += 8;
-            ptrP += 8;
-
-            // 2nd blk
-            if (*pStrength == 0)
-            {
-                // check |mv difference| >= 4
-                tmp = *ptrQ++ - *ptrP++;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-
-                tmp = *ptrQ-- - *ptrP--;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-            }
-
-            pStrength++;
-            ptrQ += 8;
-            ptrP += 8;
-
-            // 3rd blk
-            if (*pStrength == 0)
-            {
-                // check |mv difference| >= 4
-                tmp = *ptrQ++ - *ptrP++;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-
-                tmp = *ptrQ-- - *ptrP--;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-            }
-
-            pStrength++;
-            ptrQ += 8;
-            ptrP += 8;
-
-            // 4th blk
-            if (*pStrength == 0)
-            {
-                // check |mv difference| >= 4
-                tmp = *ptrQ++ - *ptrP++;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-
-                tmp = *ptrQ-- - *ptrP--;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-            }
-        }
-        else   // Horizontal Edge 0
-        {
-
-            //1. Check the ref_frame_id
-            refIdx = (void*)MbQ->RefIdx;  //de-ref type-punned pointer
-            ptrQ = (int16*)refIdx;
-            refIdx = (void*)MbP->RefIdx;  //de-ref type-punned pointer
-            ptrP = (int16*)refIdx;
-            pStrength = Strength;
-            if (ptrQ[0] != ptrP[2]) pStrength[0] = 1;
-            if (ptrQ[1] != ptrP[3]) pStrength[2] = 1;
-            pStrength[1] = pStrength[0];
-            pStrength[3] = pStrength[2];
-
-            //2. Check the non-zero coeff blocks (4x4)
-            if (MbQ->nz_coeff[0] != 0 || MbP->nz_coeff[12] != 0) pStrength[0] = 2;
-            if (MbQ->nz_coeff[1] != 0 || MbP->nz_coeff[13] != 0) pStrength[1] = 2;
-            if (MbQ->nz_coeff[2] != 0 || MbP->nz_coeff[14] != 0) pStrength[2] = 2;
-            if (MbQ->nz_coeff[3] != 0 || MbP->nz_coeff[15] != 0) pStrength[3] = 2;
-
-            //3. Only need to check the mv difference
-            vptr = (void*)MbQ->mvL0;
-            ptrQ = (int16*)vptr;
-            ptrP = (int16*)(MbP->mvL0 + 12); // points to 4x4 block #12 (the 4th row)
-
-            // 1st blk
-            if (*pStrength == 0)
-            {
-                // check |mv difference| >= 4
-                tmp = *ptrQ++ - *ptrP++;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-
-                tmp = *ptrQ-- - *ptrP--;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-            }
-
-            pStrength++;
-            ptrQ += 2;
-            ptrP += 2;
-
-            // 2nd blk
-            if (*pStrength  == 0)
-            {
-                // check |mv difference| >= 4
-                tmp = *ptrQ++ - *ptrP++;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-
-                tmp = *ptrQ-- - *ptrP--;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-            }
-
-            pStrength++;
-            ptrQ += 2;
-            ptrP += 2;
-
-            // 3rd blk
-            if (*pStrength  == 0)
-            {
-                // check |mv difference| >= 4
-                tmp = *ptrQ++ - *ptrP++;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-
-                tmp = *ptrQ-- - *ptrP--;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-            }
-
-            pStrength++;
-            ptrQ += 2;
-            ptrP += 2;
-
-            // 4th blk
-            if (*pStrength  == 0)
-            {
-                // check |mv difference| >= 4
-                tmp = *ptrQ++ - *ptrP++;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-
-                tmp = *ptrQ-- - *ptrP--;
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-            }
-
-        } /* end of: else if(dir == 0) */
-
-    } /* end of: if( !(MbP->mbMode == AVC_I4 ...) */
-}
-
-
-void GetStrength_VerticalEdges(uint8 *Strength, AVCMacroblock* MbQ)
-{
-    int     idx, tmp;
-    int16   *ptr, *pmvx, *pmvy;
-    uint8   *pnz;
-    uint8   *pStrength, *pStr;
-    void* refIdx;
-
-    if (MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16)
-    {
-        *((int*)Strength)     = ININT_STRENGTH[1];      // Start with Strength=3. or Strength=4 for Mb-edge
-        *((int*)(Strength + 4)) = ININT_STRENGTH[2];
-        *((int*)(Strength + 8)) = ININT_STRENGTH[3];
-    }
-    else   // Not intra or SP-frame
-    {
-
-        *((int*)Strength)     = 0; // for non-intra MB, strength = 0, 1 or 2.
-        *((int*)(Strength + 4)) = 0;
-        *((int*)(Strength + 8)) = 0;
-
-        //1. Check the ref_frame_id
-        refIdx = (void*)MbQ->RefIdx;  //de-ref type-punned pointer fix
-        ptr = (int16*)refIdx;
-        pStrength = Strength;
-        if (ptr[0] != ptr[1]) pStrength[4] = 1;
-        if (ptr[2] != ptr[3]) pStrength[6] = 1;
-        pStrength[5] = pStrength[4];
-        pStrength[7] = pStrength[6];
-
-        //2. Check the nz_coeff block and mv difference
-        pmvx = (int16*)(MbQ->mvL0 + 1); // points to 4x4 block #1,not #0
-        pmvy = pmvx + 1;
-        for (idx = 0; idx < 4; idx += 2) // unroll the loop, make 4 iterations to 2
-        {
-            // first/third row : 1,2,3 or 9,10,12
-            // Strength = 2 for a whole row
-            pnz = MbQ->nz_coeff + (idx << 2);
-            if (*pnz++ != 0) *pStrength = 2;
-            if (*pnz++ != 0)
-            {
-                *pStrength = 2;
-                *(pStrength + 4) = 2;
-            }
-            if (*pnz++ != 0)
-            {
-                *(pStrength + 4) = 2;
-                *(pStrength + 8) = 2;
-            }
-            if (*pnz != 0) *(pStrength + 8) = 2;
-
-            // Then Strength = 1
-            if (*pStrength == 0)
-            {
-                //within the same 8x8 block, no need to check the reference id
-                //only need to check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-
-                tmp = *pmvy - *(pmvy - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-            }
-
-            pmvx += 2;
-            pmvy += 2;
-            pStr = pStrength + 4;
-
-            if (*pStr == 0)
-            {
-                //check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-
-                tmp = *pmvy - *(pmvy - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-            }
-
-            pmvx += 2;
-            pmvy += 2;
-            pStr = pStrength + 8;
-
-            if (*pStr == 0)
-            {
-                //within the same 8x8 block, no need to check the reference id
-                //only need to check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-
-                tmp = *pmvy - *(pmvy - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-            }
-
-            // Second/fourth row: 5,6,7 or 14,15,16
-            // Strength = 2 for a whole row
-            pnz = MbQ->nz_coeff + ((idx + 1) << 2);
-            if (*pnz++ != 0) *(pStrength + 1) = 2;
-            if (*pnz++ != 0)
-            {
-                *(pStrength + 1) = 2;
-                *(pStrength + 5) = 2;
-            }
-            if (*pnz++ != 0)
-            {
-                *(pStrength + 5) = 2;
-                *(pStrength + 9) = 2;
-            }
-            if (*pnz != 0) *(pStrength + 9) = 2;
-
-            // Then Strength = 1
-            pmvx += 4;
-            pmvy += 4;
-            pStr = pStrength + 1;
-            if (*pStr == 0)
-            {
-                //within the same 8x8 block, no need to check the reference id
-                //only need to check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-
-                tmp = *pmvy - *(pmvy - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-            }
-
-            pmvx += 2;
-            pmvy += 2;
-            pStr = pStrength + 5;
-
-            if (*pStr == 0)
-            {
-                //check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-
-                tmp = *pmvy - *(pmvy - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-            }
-
-            pmvx += 2;
-            pmvy += 2;
-            pStr = pStrength + 9;
-
-            if (*pStr == 0)
-            {
-                //within the same 8x8 block, no need to check the reference id
-                //only need to check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-
-                tmp = *pmvy - *(pmvy - 2);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-            }
-
-            // update some variables for the next two rows
-            pmvx += 4;
-            pmvy += 4;
-            pStrength += 2;
-
-        } /* end of: for(idx=0; idx<2; idx++) */
-
-    } /* end of: else if( MbQ->mbMode == AVC_I4 ...) */
-}
-
-
-void GetStrength_HorizontalEdges(uint8 Strength[12], AVCMacroblock* MbQ)
-{
-    int     idx, tmp;
-    int16   *ptr, *pmvx, *pmvy;
-    uint8   *pStrength, *pStr;
-    void* refIdx;
-
-    if (MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16)
-    {
-        *((int*)Strength)     = ININT_STRENGTH[1];      // Start with Strength=3. or Strength=4 for Mb-edge
-        *((int*)(Strength + 4)) = ININT_STRENGTH[2];
-        *((int*)(Strength + 8)) = ININT_STRENGTH[3];
-    }
-    else   // Not intra or SP-frame
-    {
-
-        *((int*)Strength)     = 0; // for non-intra MB, strength = 0, 1 or 2.
-        *((int*)(Strength + 4)) = 0; // for non-intra MB, strength = 0, 1 or 2.
-        *((int*)(Strength + 8)) = 0; // for non-intra MB, strength = 0, 1 or 2.
-
-
-        //1. Check the ref_frame_id
-        refIdx = (void*) MbQ->RefIdx; // de-ref type-punned fix
-        ptr = (int16*) refIdx;
-        pStrength = Strength;
-        if (ptr[0] != ptr[2]) pStrength[4] = 1;
-        if (ptr[1] != ptr[3]) pStrength[6] = 1;
-        pStrength[5] = pStrength[4];
-        pStrength[7] = pStrength[6];
-
-        //2. Check the nz_coeff block and mv difference
-        pmvx = (int16*)(MbQ->mvL0 + 4); // points to 4x4 block #4,not #0
-        pmvy = pmvx + 1;
-        for (idx = 0; idx < 4; idx += 2) // unroll the loop, make 4 iterations to 2
-        {
-            // first/third row : 1,2,3 or 9,10,12
-            // Strength = 2 for a whole row
-            if (MbQ->nz_coeff[idx] != 0) *pStrength = 2;
-            if (MbQ->nz_coeff[4+idx] != 0)
-            {
-                *pStrength = 2;
-                *(pStrength + 4) = 2;
-            }
-            if (MbQ->nz_coeff[8+idx] != 0)
-            {
-                *(pStrength + 4) = 2;
-                *(pStrength + 8) = 2;
-            }
-            if (MbQ->nz_coeff[12+idx] != 0) *(pStrength + 8) = 2;
-
-            // Then Strength = 1
-            if (*pStrength == 0)
-            {
-                //within the same 8x8 block, no need to check the reference id
-                //only need to check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-
-                tmp = *pmvy - *(pmvy - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStrength = 1;
-            }
-
-            pmvx += 8;
-            pmvy += 8;
-            pStr = pStrength + 4;
-
-            if (*pStr == 0)
-            {
-                //check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-
-                tmp = *pmvy - *(pmvy - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-            }
-
-            pmvx += 8;
-            pmvy += 8;
-            pStr = pStrength + 8;
-
-            if (*pStr == 0)
-            {
-                //within the same 8x8 block, no need to check the reference id
-                //only need to check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-
-                tmp = *pmvy - *(pmvy - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-            }
-
-            // Second/fourth row: 5,6,7 or 14,15,16
-            // Strength = 2 for a whole row
-            if (MbQ->nz_coeff[idx+1] != 0) *(pStrength + 1) = 2;
-            if (MbQ->nz_coeff[4+idx+1] != 0)
-            {
-                *(pStrength + 1) = 2;
-                *(pStrength + 5) = 2;
-            }
-            if (MbQ->nz_coeff[8+idx+1] != 0)
-            {
-                *(pStrength + 5) = 2;
-                *(pStrength + 9) = 2;
-            }
-            if (MbQ->nz_coeff[12+idx+1] != 0) *(pStrength + 9) = 2;
-
-            // Then Strength = 1
-            pmvx -= 14;
-            pmvy -= 14; // -14 = -16 + 2
-            pStr = pStrength + 1;
-            if (*pStr == 0)
-            {
-                //within the same 8x8 block, no need to check the reference id
-                //only need to check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-
-                tmp = *pmvy - *(pmvy - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-            }
-
-            pmvx += 8;
-            pmvy += 8;
-            pStr = pStrength + 5;
-
-            if (*pStr == 0)
-            {
-                //check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-
-                tmp = *pmvy - *(pmvy - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-            }
-
-            pmvx += 8;
-            pmvy += 8;
-            pStr = pStrength + 9;
-
-            if (*pStr == 0)
-            {
-                //within the same 8x8 block, no need to check the reference id
-                //only need to check the |mv difference| >= 4
-                tmp = *pmvx - *(pmvx - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-
-                tmp = *pmvy - *(pmvy - 8);
-                if (tmp < 0) tmp = -tmp;
-                if (tmp >= 4) *pStr = 1;
-            }
-
-            // update some variables for the next two rows
-            pmvx -= 14;
-            pmvy -= 14; // -14 = -16 + 2
-            pStrength += 2;
-
-        } /* end of: for(idx=0; idx<2; idx++) */
-
-    } /* end of: else if( MbQ->mbMode == AVC_I4 ...) */
-}
-
-/*
- *****************************************************************************************
- * \brief  Filters one edge of 16 (luma) or 8 (chroma) pel
- *****************************************************************************************
-*/
-
-void EdgeLoop_Luma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch)
-{
-    int  pel, ap = 0, aq = 0, Strng;
-    int  C0, c0, dif, AbsDelta, tmp, tmp1;
-    int  L2 = 0, L1, L0, R0, R1, R2 = 0, RL0;
-
-
-    if (Strength[0] == 4)  /* INTRA strong filtering */
-    {
-        for (pel = 0; pel < 16; pel++)
-        {
-            R0  = SrcPtr[0];
-            R1  = SrcPtr[pitch];
-            L0  = SrcPtr[-pitch];
-            L1  = SrcPtr[-(pitch<<1)];
-
-            // |R0 - R1| < Beta
-            tmp1 = R0 - R1;
-            if (tmp1 < 0) tmp1 = -tmp1;
-            tmp = (tmp1 - Beta);
-
-            //|L0 - L1| < Beta
-            tmp1 = L0 - L1;
-            if (tmp1 < 0) tmp1 = -tmp1;
-            tmp &= (tmp1 - Beta);
-
-            //|R0 - L0| < Alpha
-            AbsDelta = R0 - L0;
-            if (AbsDelta < 0) AbsDelta = -AbsDelta;
-            tmp &= (AbsDelta - Alpha);
-
-            if (tmp < 0)
-            {
-                AbsDelta -= ((Alpha >> 2) + 2);
-                R2 = SrcPtr[pitch<<1]; //inc2
-                L2 = SrcPtr[-(pitch+(pitch<<1))]; // -inc3
-
-                // |R0 - R2| < Beta && |R0 - L0| < (Alpha/4 + 2)
-                tmp = R0 - R2;
-                if (tmp < 0) tmp = -tmp;
-                aq = AbsDelta & (tmp - Beta);
-
-                // |L0 - L2| < Beta && |R0 - L0| < (Alpha/4 + 2)
-                tmp = L0 - L2;
-                if (tmp < 0) tmp = -tmp;
-                ap = AbsDelta & (tmp - Beta);
-
-                if (aq < 0)
-                {
-                    tmp = R1 + R0 + L0;
-                    SrcPtr[0] = (L1 + (tmp << 1) +  R2 + 4) >> 3;
-                    tmp += R2;
-                    SrcPtr[pitch]  = (tmp + 2) >> 2;
-                    SrcPtr[pitch<<1] = (((SrcPtr[(pitch+(pitch<<1))] + R2) << 1) + tmp + 4) >> 3;
-                }
-                else
-                    SrcPtr[0] = ((R1 << 1) + R0 + L1 + 2) >> 2;
-
-                if (ap < 0)
-                {
-                    tmp = L1 + R0 + L0;
-                    SrcPtr[-pitch]  = (R1 + (tmp << 1) +  L2 + 4) >> 3;
-                    tmp += L2;
-                    SrcPtr[-(pitch<<1)] = (tmp + 2) >> 2;
-                    SrcPtr[-(pitch+(pitch<<1))] = (((SrcPtr[-(pitch<<2)] + L2) << 1) + tmp + 4) >> 3;
-                }
-                else
-                    SrcPtr[-pitch] = ((L1 << 1) + L0 + R1 + 2) >> 2;
-
-            } /* if(tmp < 0) */
-
-            SrcPtr ++; // Increment to next set of pixel
-
-        } /* end of: for(pel=0; pel<16; pel++) */
-
-    } /* if(Strength[0] == 4) */
-
-    else   /* Normal filtering */
-    {
-        for (pel = 0; pel < 16; pel++)
-        {
-            Strng = Strength[pel >> 2];
-            if (Strng)
-            {
-                R0  = SrcPtr[0];
-                R1  = SrcPtr[pitch];
-                L0  = SrcPtr[-pitch];
-                L1  = SrcPtr[-(pitch<<1)]; // inc2
-
-                //|R0 - L0| < Alpha
-                tmp1 = R0 - L0;
-                if (tmp1 < 0) tmp1 = -tmp1;
-                tmp = (tmp1 - Alpha);
-
-                // |R0 - R1| < Beta
-                tmp1 = R0 - R1;
-                if (tmp1 < 0) tmp1 = -tmp1;
-                tmp &= (tmp1 - Beta);
-
-                //|L0 - L1| < Beta
-                tmp1 = L0 - L1;
-                if (tmp1 < 0) tmp1 = -tmp1;
-                tmp &= (tmp1 - Beta);
-
-                if (tmp < 0)
-                {
-                    R2 = SrcPtr[pitch<<1]; //inc2
-                    L2 = SrcPtr[-(pitch+(pitch<<1))]; // -inc3
-
-                    // |R0 - R2| < Beta
-                    tmp = R0 - R2;
-                    if (tmp < 0) tmp = -tmp;
-                    aq = tmp - Beta;
-
-                    // |L0 - L2| < Beta
-                    tmp = L0 - L2;
-                    if (tmp < 0) tmp = -tmp;
-                    ap = tmp - Beta;
-
-
-                    c0 = C0 = clipTable[Strng];
-                    if (ap < 0) c0++;
-                    if (aq < 0) c0++;
-
-                    //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3);
-                    dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3;
-                    tmp = dif + c0;
-                    if ((uint)tmp > (uint)c0 << 1)
-                    {
-                        tmp = ~(tmp >> 31);
-                        dif = (tmp & (c0 << 1)) - c0;
-                    }
-
-                    //SrcPtr[0]    = (uint8)IClip(0, 255, R0 - dif);
-                    //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif);
-                    RL0 = R0 + L0;
-                    R0 -= dif;
-                    L0 += dif;
-                    if ((uint)R0 > 255)
-                    {
-                        tmp = ~(R0 >> 31);
-                        R0 = tmp & 255;
-                    }
-                    if ((uint)L0 > 255)
-                    {
-                        tmp = ~(L0 >> 31);
-                        L0 = tmp & 255;
-                    }
-                    SrcPtr[-pitch] = L0;
-                    SrcPtr[0] = R0;
-
-                    if (C0 != 0) /* Multiple zeros in the clip tables */
-                    {
-                        if (aq < 0)  // SrcPtr[inc]   += IClip(-C0, C0,(R2 + ((RL0 + 1) >> 1) - (R1<<1)) >> 1);
-                        {
-                            R2 = (R2 + ((RL0 + 1) >> 1) - (R1 << 1)) >> 1;
-                            tmp = R2 + C0;
-                            if ((uint)tmp > (uint)C0 << 1)
-                            {
-                                tmp = ~(tmp >> 31);
-                                R2 = (tmp & (C0 << 1)) - C0;
-                            }
-                            SrcPtr[pitch] += R2;
-                        }
-
-                        if (ap < 0)  //SrcPtr[-inc2] += IClip(-C0, C0,(L2 + ((RL0 + 1) >> 1) - (L1<<1)) >> 1);
-                        {
-                            L2 = (L2 + ((RL0 + 1) >> 1) - (L1 << 1)) >> 1;
-                            tmp = L2 + C0;
-                            if ((uint)tmp > (uint)C0 << 1)
-                            {
-                                tmp = ~(tmp >> 31);
-                                L2 = (tmp & (C0 << 1)) - C0;
-                            }
-                            SrcPtr[-(pitch<<1)] += L2;
-                        }
-                    }
-
-                } /* if(tmp < 0) */
-
-            } /* end of:  if((Strng = Strength[pel >> 2])) */
-
-            SrcPtr ++; // Increment to next set of pixel
-
-        } /* for(pel=0; pel<16; pel++) */
-
-    } /* else if(Strength[0] == 4) */
-}
-
-void EdgeLoop_Luma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch)
-{
-    int  pel, ap = 1, aq = 1;
-    int  C0, c0, dif, AbsDelta, Strng, tmp, tmp1;
-    int  L2 = 0, L1, L0, R0, R1, R2 = 0;
-    uint8 *ptr, *ptr1;
-    uint R_in, L_in;
-    uint R_out, L_out;
-
-
-    if (Strength[0] == 4)  /* INTRA strong filtering */
-    {
-
-        for (pel = 0; pel < 16; pel++)
-        {
-
-            // Read 8 pels
-            R_in = *((uint *)SrcPtr);       // R_in = {R3, R2, R1, R0}
-            L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3}
-            R1   = (R_in >> 8) & 0xff;
-            R0   = R_in & 0xff;
-            L0   = L_in >> 24;
-            L1   = (L_in >> 16) & 0xff;
-
-            // |R0 - R1| < Beta
-            tmp1 = (R_in & 0xff) - R1;
-            if (tmp1 < 0) tmp1 = -tmp1;
-            tmp = (tmp1 - Beta);
-
-
-            //|L0 - L1| < Beta
-            tmp1 = (L_in >> 24) - L1;
-            if (tmp1 < 0) tmp1 = -tmp1;
-            tmp &= (tmp1 - Beta);
-
-            //|R0 - L0| < Alpha
-            AbsDelta = (R_in & 0xff) - (L_in >> 24);
-            if (AbsDelta < 0) AbsDelta = -AbsDelta;
-            tmp &= (AbsDelta - Alpha);
-
-            if (tmp < 0)
-            {
-                AbsDelta -= ((Alpha >> 2) + 2);
-                R2   = (R_in >> 16) & 0xff;
-                L2   = (L_in >> 8) & 0xff;
-
-                // |R0 - R2| < Beta && |R0 - L0| < (Alpha/4 + 2)
-                tmp1 = (R_in & 0xff) - R2;
-                if (tmp1 < 0) tmp1 = -tmp1;
-                aq = AbsDelta & (tmp1 - Beta);
-
-                // |L0 - L2| < Beta && |R0 - L0| < (Alpha/4 + 2)
-                tmp1 = (L_in >> 24) - L2;
-                if (tmp1 < 0) tmp1 = -tmp1;
-                ap = AbsDelta & (tmp1 - Beta);
-
-
-                ptr = SrcPtr;
-                if (aq < 0)
-                {
-                    R_out = (R_in >> 24) << 24; // Keep R3 at the fourth byte
-
-                    tmp  = R0 + L0 + R1;
-                    R_out |= (((tmp << 1) +  L1 + R2 + 4) >> 3);
-                    tmp += R2;
-                    R_out |= (((tmp + 2) >> 2) << 8);
-                    tmp1 = ((R_in >> 24) + R2) << 1;
-                    R_out |= (((tmp1 + tmp + 4) >> 3) << 16);
-
-                    *((uint *)SrcPtr) = R_out;
-                }
-                else
-                    *ptr = ((R1 << 1) + R0 + L1 + 2) >> 2;
-
-
-                if (ap < 0)
-                {
-                    L_out = (L_in << 24) >> 24; // Keep L3 at the first byte
-
-                    tmp  = R0 + L0 + L1;
-                    L_out |= ((((tmp << 1) + R1 + L2 + 4) >> 3) << 24);
-                    tmp += L2;
-                    L_out |= (((tmp + 2) >> 2) << 16);
-                    tmp1 = ((L_in & 0xff) + L2) << 1;
-                    L_out |= (((tmp1 + tmp + 4) >> 3) << 8);
-
-                    *((uint *)(SrcPtr - 4)) = L_out;
-                }
-                else
-                    *(--ptr) = ((L1 << 1) + L0 + R1 + 2) >> 2;
-
-            } /* if(tmp < 0) */
-
-            SrcPtr += pitch;    // Increment to next set of pixel
-
-        } /* end of: for(pel=0; pel<16; pel++) */
-
-    } /* if(Strength[0] == 4) */
-
-    else   /* Normal filtering */
-    {
-
-        for (pel = 0; pel < 16; pel++)
-        {
-            Strng = Strength[pel >> 2];
-            if (Strng)
-            {
-                // Read 8 pels
-                R_in = *((uint *)SrcPtr);       // R_in = {R3, R2, R1, R0}
-                L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3}
-                R1   = (R_in >> 8) & 0xff;
-                R0   = R_in & 0xff;
-                L0   = L_in >> 24;
-                L1   = (L_in >> 16) & 0xff;
-
-                //|R0 - L0| < Alpha
-                tmp = R0 - L0;
-                if (tmp < 0) tmp = -tmp;
-                tmp -= Alpha;
-
-                // |R0 - R1| < Beta
-                tmp1 = R0 - R1;
-                if (tmp1 < 0) tmp1 = -tmp1;
-                tmp &= (tmp1 - Beta);
-
-                //|L0 - L1| < Beta
-                tmp1 = L0 - L1;
-                if (tmp1 < 0) tmp1 = -tmp1;
-                tmp &= (tmp1 - Beta);
-
-                if (tmp < 0)
-                {
-                    L2 = SrcPtr[-3];
-                    R2 = SrcPtr[2];
-
-                    // |R0 - R2| < Beta
-                    tmp = R0 - R2;
-                    if (tmp < 0) tmp = -tmp;
-                    aq = tmp - Beta;
-
-                    // |L0 - L2| < Beta
-                    tmp = L0 - L2;
-                    if (tmp < 0) tmp = -tmp;
-                    ap = tmp - Beta;
-
-
-                    c0 = C0 = clipTable[Strng];
-                    if (ap < 0) c0++;
-                    if (aq < 0) c0++;
-
-                    //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3);
-                    dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3;
-                    tmp = dif + c0;
-                    if ((uint)tmp > (uint)c0 << 1)
-                    {
-                        tmp = ~(tmp >> 31);
-                        dif = (tmp & (c0 << 1)) - c0;
-                    }
-
-                    ptr = SrcPtr;
-                    ptr1 = SrcPtr - 1;
-                    //SrcPtr[0]    = (uint8)IClip(0, 255, R0 - dif);
-                    //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif);
-                    R_in = R0 - dif;
-                    L_in = L0 + dif; /* cannot re-use R0 and L0 here */
-                    if ((uint)R_in > 255)
-                    {
-                        tmp = ~((int)R_in >> 31);
-                        R_in = tmp & 255;
-                    }
-                    if ((uint)L_in > 255)
-                    {
-                        tmp = ~((int)L_in >> 31);
-                        L_in = tmp & 255;
-                    }
-                    *ptr1-- = L_in;
-                    *ptr++  = R_in;
-
-                    if (C0 != 0) // Multiple zeros in the clip tables
-                    {
-                        if (ap < 0)  //SrcPtr[-inc2] += IClip(-C0, C0,(L2 + ((RL0 + 1) >> 1) - (L1<<1)) >> 1);
-                        {
-                            L2 = (L2 + ((R0 + L0 + 1) >> 1) - (L1 << 1)) >> 1;
-                            tmp = L2 + C0;
-                            if ((uint)tmp > (uint)C0 << 1)
-                            {
-                                tmp = ~(tmp >> 31);
-                                L2 = (tmp & (C0 << 1)) - C0;
-                            }
-                            *ptr1 += L2;
-                        }
-
-                        if (aq < 0)  // SrcPtr[inc] += IClip(-C0, C0,(R2 + ((RL0 + 1) >> 1) - (R1<<1)) >> 1);
-                        {
-                            R2 = (R2 + ((R0 + L0 + 1) >> 1) - (R1 << 1)) >> 1;
-                            tmp = R2 + C0;
-                            if ((uint)tmp > (uint)C0 << 1)
-                            {
-                                tmp = ~(tmp >> 31);
-                                R2 = (tmp & (C0 << 1)) - C0;
-                            }
-                            *ptr += R2;
-                        }
-                    }
-
-                } /* if(tmp < 0) */
-
-            } /* end of:  if((Strng = Strength[pel >> 2])) */
-
-            SrcPtr += pitch;    // Increment to next set of pixel
-
-        } /* for(pel=0; pel<16; pel++) */
-
-    } /* else if(Strength[0] == 4) */
-
-}
-
-void EdgeLoop_Chroma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch)
-{
-    int     pel, Strng;
-    int     c0, dif;
-    int     L1, L0, R0, R1, tmp, tmp1;
-    uint8   *ptr;
-    uint    R_in, L_in;
-
-
-    for (pel = 0; pel < 16; pel++)
-    {
-        Strng = Strength[pel>>2];
-        if (Strng)
-        {
-            // Read 8 pels
-            R_in = *((uint *)SrcPtr);       // R_in = {R3, R2, R1, R0}
-            L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3}
-            R1   = (R_in >> 8) & 0xff;
-            R0   = R_in & 0xff;
-            L0   = L_in >> 24;
-            L1   = (L_in >> 16) & 0xff;
-
-            // |R0 - R1| < Beta
-            tmp1 = R0 - R1;
-            if (tmp1 < 0) tmp1 = -tmp1;
-            tmp = (tmp1 - Beta);
-
-            //|L0 - L1| < Beta
-            tmp1 = L0 - L1;
-            if (tmp1 < 0) tmp1 = -tmp1;
-            tmp &= (tmp1 - Beta);
-
-            //|R0 - L0| < Alpha
-            tmp1 = R0 - L0;
-            if (tmp1 < 0) tmp1 = -tmp1;
-            tmp &= (tmp1 - Alpha);
-
-            if (tmp < 0)
-            {
-                ptr = SrcPtr;
-                if (Strng == 4) /* INTRA strong filtering */
-                {
-                    *ptr-- = ((R1 << 1) + R0 + L1 + 2) >> 2;
-                    *ptr   = ((L1 << 1) + L0 + R1 + 2) >> 2;
-                }
-                else  /* normal filtering */
-                {
-                    c0  = clipTable[Strng] + 1;
-                    //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3);
-                    dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3;
-                    tmp = dif + c0;
-                    if ((uint)tmp > (uint)c0 << 1)
-                    {
-                        tmp = ~(tmp >> 31);
-                        dif = (tmp & (c0 << 1)) - c0;
-                    }
-
-                    //SrcPtr[0]    = (uint8)IClip(0, 255, R0 - dif);
-                    //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif);
-                    L0 += dif;
-                    R0 -= dif;
-                    if ((uint)L0 > 255)
-                    {
-                        tmp = ~(L0 >> 31);
-                        L0 = tmp & 255;
-                    }
-                    if ((uint)R0 > 255)
-                    {
-                        tmp = ~(R0 >> 31);
-                        R0 = tmp & 255;
-                    }
-
-                    *ptr-- = R0;
-                    *ptr = L0;
-                }
-            }
-            pel ++;
-            SrcPtr += pitch;   // Increment to next set of pixel
-
-        } /* end of: if((Strng = Strength[pel >> 2])) */
-        else
-        {
-            pel += 3;
-            SrcPtr += (pitch << 1); //PtrInc << 1;
-        }
-
-    } /* end of: for(pel=0; pel<16; pel++) */
-}
-
-
-void EdgeLoop_Chroma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch)
-{
-    int  pel, Strng;
-    int  c0, dif;
-    int  L1, L0, R0, R1, tmp, tmp1;
-
-    for (pel = 0; pel < 16; pel++)
-    {
-        Strng = Strength[pel>>2];
-        if (Strng)
-        {
-            R0  = SrcPtr[0];
-            L0  = SrcPtr[-pitch];
-            L1  = SrcPtr[-(pitch<<1)]; //inc2
-            R1  = SrcPtr[pitch];
-
-            // |R0 - R1| < Beta
-            tmp1 = R0 - R1;
-            if (tmp1 < 0) tmp1 = -tmp1;
-            tmp = (tmp1 - Beta);
-
-            //|L0 - L1| < Beta
-            tmp1 = L0 - L1;
-            if (tmp1 < 0) tmp1 = -tmp1;
-            tmp &= (tmp1 - Beta);
-
-            //|R0 - L0| < Alpha
-            tmp1 = R0 - L0;
-            if (tmp1 < 0) tmp1 = -tmp1;
-            tmp &= (tmp1 - Alpha);
-
-            if (tmp < 0)
-            {
-                if (Strng == 4) /* INTRA strong filtering */
-                {
-                    SrcPtr[0]      = ((R1 << 1) + R0 + L1 + 2) >> 2;
-                    SrcPtr[-pitch] = ((L1 << 1) + L0 + R1 + 2) >> 2;
-                }
-                else  /* normal filtering */
-                {
-                    c0  = clipTable[Strng] + 1;
-                    //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3);
-                    dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3;
-                    tmp = dif + c0;
-                    if ((uint)tmp > (uint)c0 << 1)
-                    {
-                        tmp = ~(tmp >> 31);
-                        dif = (tmp & (c0 << 1)) - c0;
-                    }
-
-                    //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif);
-                    //SrcPtr[0]    = (uint8)IClip(0, 255, R0 - dif);
-                    L0 += dif;
-                    R0 -= dif;
-                    if ((uint)L0 > 255)
-                    {
-                        tmp = ~(L0 >> 31);
-                        L0 = tmp & 255;
-                    }
-                    if ((uint)R0 > 255)
-                    {
-                        tmp = ~(R0 >> 31);
-                        R0 = tmp & 255;
-                    }
-                    SrcPtr[0] = R0;
-                    SrcPtr[-pitch] = L0;
-                }
-            }
-
-            pel ++;
-            SrcPtr ++; // Increment to next set of pixel
-
-        } /* end of: if((Strng = Strength[pel >> 2])) */
-        else
-        {
-            pel += 3;
-            SrcPtr += 2;
-        }
-
-    } /* end of: for(pel=0; pel<16; pel++) */
-}
-
-
-
-
diff --git a/media/libstagefright/codecs/avc/common/src/dpb.cpp b/media/libstagefright/codecs/avc/common/src/dpb.cpp
deleted file mode 100644
index b5d0dfe..0000000
--- a/media/libstagefright/codecs/avc/common/src/dpb.cpp
+++ /dev/null
@@ -1,724 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avclib_common.h"
-
-#define DPB_MEM_ATTR 0
-
-AVCStatus InitDPB(AVCHandle *avcHandle, AVCCommonObj *video, int FrameHeightInMbs, int PicWidthInMbs, bool padding)
-{
-    AVCDecPicBuffer *dpb = video->decPicBuf;
-    int level, framesize, num_fs;
-    void *userData = avcHandle->userData;
-#ifndef PV_MEMORY_POOL
-    uint32 addr;
-#endif
-    uint16 refIdx = 0;
-    level = video->currSeqParams->level_idc;
-
-    for (num_fs = 0; num_fs < MAX_FS; num_fs++)
-    {
-        dpb->fs[num_fs] = NULL;
-    }
-
-    framesize = (int)(((FrameHeightInMbs * PicWidthInMbs) << 7) * 3);
-    if (padding)
-    {
-        video->padded_size = (int)((((FrameHeightInMbs + 2) * (PicWidthInMbs + 2)) << 7) * 3) - framesize;
-    }
-    else
-    {
-        video->padded_size = 0;
-    }
-
-#ifndef PV_MEMORY_POOL
-    if (dpb->decoded_picture_buffer)
-    {
-        avcHandle->CBAVC_Free(userData, (int)dpb->decoded_picture_buffer);
-        dpb->decoded_picture_buffer = NULL;
-    }
-#endif
-    /* need to allocate one extra frame for current frame, DPB only defines for reference frames */
-
-    dpb->num_fs = (uint32)(MaxDPBX2[mapLev2Idx[level]] << 2) / (3 * FrameHeightInMbs * PicWidthInMbs) + 1;
-    if (dpb->num_fs > MAX_FS)
-    {
-        dpb->num_fs = MAX_FS;
-    }
-
-    if (video->currSeqParams->num_ref_frames + 1 > (uint32)dpb->num_fs)
-    {
-        dpb->num_fs = video->currSeqParams->num_ref_frames + 1;
-    }
-
-    dpb->dpb_size = dpb->num_fs * (framesize + video->padded_size);
-//  dpb->dpb_size = (uint32)MaxDPBX2[mapLev2Idx[level]]*512 + framesize;
-
-#ifndef PV_MEMORY_POOL
-    dpb->decoded_picture_buffer = (uint8*) avcHandle->CBAVC_Malloc(userData, dpb->dpb_size, 100/*DPB_MEM_ATTR*/);
-
-    if (dpb->decoded_picture_buffer == NULL || dpb->decoded_picture_buffer&0x3) // not word aligned
-        return AVC_MEMORY_FAIL;
-#endif
-    dpb->used_size = 0;
-    num_fs = 0;
-
-    while (num_fs < dpb->num_fs)
-    {
-        /*  fs is an array pointers to AVCDecPicture */
-        dpb->fs[num_fs] = (AVCFrameStore*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCFrameStore), 101/*DEFAULT_ATTR*/);
-        if (dpb->fs[num_fs] == NULL)
-        {
-            return AVC_MEMORY_FAIL;
-        }
-#ifndef PV_MEMORY_POOL
-        /* assign the actual memory for Sl, Scb, Scr */
-        dpb->fs[num_fs]->base_dpb = dpb->decoded_picture_buffer + dpb->used_size;
-#endif
-        dpb->fs[num_fs]->IsReference = 0;
-        dpb->fs[num_fs]->IsLongTerm = 0;
-        dpb->fs[num_fs]->IsOutputted = 3;
-        dpb->fs[num_fs]->frame.RefIdx = refIdx++; /* this value will remain unchanged through out the encoding session */
-        dpb->fs[num_fs]->frame.picType = AVC_FRAME;
-        dpb->fs[num_fs]->frame.isLongTerm = 0;
-        dpb->fs[num_fs]->frame.isReference = 0;
-        video->RefPicList0[num_fs] = &(dpb->fs[num_fs]->frame);
-        dpb->fs[num_fs]->frame.padded = 0;
-        dpb->used_size += (framesize + video->padded_size);
-        num_fs++;
-    }
-
-    return AVC_SUCCESS;
-}
-
-OSCL_EXPORT_REF AVCStatus AVCConfigureSequence(AVCHandle *avcHandle, AVCCommonObj *video, bool padding)
-{
-    void *userData = avcHandle->userData;
-    AVCDecPicBuffer *dpb = video->decPicBuf;
-    int framesize, ii; /* size of one frame */
-    uint PicWidthInMbs, PicHeightInMapUnits, FrameHeightInMbs, PicSizeInMapUnits;
-    uint num_fs;
-    /* derived variables from SPS */
-    PicWidthInMbs = video->currSeqParams->pic_width_in_mbs_minus1 + 1;
-    PicHeightInMapUnits = video->currSeqParams->pic_height_in_map_units_minus1 + 1 ;
-    FrameHeightInMbs = (2 - video->currSeqParams->frame_mbs_only_flag) * PicHeightInMapUnits ;
-    PicSizeInMapUnits = PicWidthInMbs * PicHeightInMapUnits ;
-
-    if (video->PicSizeInMapUnits != PicSizeInMapUnits || video->currSeqParams->level_idc != video->level_idc)
-    {
-        /* make sure you mark all the frames as unused for reference for flushing*/
-        for (ii = 0; ii < dpb->num_fs; ii++)
-        {
-            dpb->fs[ii]->IsReference = 0;
-            dpb->fs[ii]->IsOutputted |= 0x02;
-        }
-
-        num_fs = (uint32)(MaxDPBX2[(uint32)mapLev2Idx[video->currSeqParams->level_idc]] << 2) / (3 * PicSizeInMapUnits) + 1;
-        if (num_fs >= MAX_FS)
-        {
-            num_fs = MAX_FS;
-        }
-#ifdef PV_MEMORY_POOL
-        if (padding)
-        {
-            avcHandle->CBAVC_DPBAlloc(avcHandle->userData,
-                                      PicSizeInMapUnits + ((PicWidthInMbs + 2) << 1) + (PicHeightInMapUnits << 1), num_fs);
-        }
-        else
-        {
-            avcHandle->CBAVC_DPBAlloc(avcHandle->userData, PicSizeInMapUnits, num_fs);
-        }
-#endif
-        CleanUpDPB(avcHandle, video);
-        if (InitDPB(avcHandle, video, FrameHeightInMbs, PicWidthInMbs, padding) != AVC_SUCCESS)
-        {
-            return AVC_FAIL;
-        }
-        /*  Allocate video->mblock upto PicSizeInMbs and populate the structure  such as the neighboring MB pointers.   */
-        framesize = (FrameHeightInMbs * PicWidthInMbs);
-        if (video->mblock)
-        {
-            avcHandle->CBAVC_Free(userData, video->mblock);
-            video->mblock = NULL;
-        }
-        video->mblock = (AVCMacroblock*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCMacroblock) * framesize, DEFAULT_ATTR);
-        if (video->mblock == NULL)
-        {
-            return AVC_FAIL;
-        }
-        for (ii = 0; ii < framesize; ii++)
-        {
-            video->mblock[ii].slice_id = -1;
-        }
-        /* Allocate memory for intra prediction */
-#ifdef MB_BASED_DEBLOCK
-        video->intra_pred_top = (uint8*) avcHandle->CBAVC_Malloc(userData, PicWidthInMbs << 4, FAST_MEM_ATTR);
-        if (video->intra_pred_top == NULL)
-        {
-            return AVC_FAIL;
-        }
-        video->intra_pred_top_cb = (uint8*) avcHandle->CBAVC_Malloc(userData, PicWidthInMbs << 3, FAST_MEM_ATTR);
-        if (video->intra_pred_top_cb == NULL)
-        {
-            return AVC_FAIL;
-        }
-        video->intra_pred_top_cr = (uint8*) avcHandle->CBAVC_Malloc(userData, PicWidthInMbs << 3, FAST_MEM_ATTR);
-        if (video->intra_pred_top_cr == NULL)
-        {
-            return AVC_FAIL;
-        }
-
-#endif
-        /*  Allocate slice group MAP map */
-
-        if (video->MbToSliceGroupMap)
-        {
-            avcHandle->CBAVC_Free(userData, video->MbToSliceGroupMap);
-            video->MbToSliceGroupMap = NULL;
-        }
-        video->MbToSliceGroupMap = (int*) avcHandle->CBAVC_Malloc(userData, sizeof(uint) * PicSizeInMapUnits * 2, 7/*DEFAULT_ATTR*/);
-        if (video->MbToSliceGroupMap == NULL)
-        {
-            return AVC_FAIL;
-        }
-        video->PicSizeInMapUnits = PicSizeInMapUnits;
-        video->level_idc = video->currSeqParams->level_idc;
-
-    }
-    return AVC_SUCCESS;
-}
-
-OSCL_EXPORT_REF AVCStatus CleanUpDPB(AVCHandle *avcHandle, AVCCommonObj *video)
-{
-    AVCDecPicBuffer *dpb = video->decPicBuf;
-    int ii;
-    void *userData = avcHandle->userData;
-
-    for (ii = 0; ii < MAX_FS; ii++)
-    {
-        if (dpb->fs[ii] != NULL)
-        {
-            avcHandle->CBAVC_Free(userData, dpb->fs[ii]);
-            dpb->fs[ii] = NULL;
-        }
-    }
-#ifndef PV_MEMORY_POOL
-    if (dpb->decoded_picture_buffer)
-    {
-        avcHandle->CBAVC_Free(userData, dpb->decoded_picture_buffer);
-        dpb->decoded_picture_buffer = NULL;
-    }
-#endif
-    dpb->used_size = 0;
-    dpb->dpb_size = 0;
-
-    return AVC_SUCCESS;
-}
-
-OSCL_EXPORT_REF AVCStatus DPBInitBuffer(AVCHandle *avcHandle, AVCCommonObj *video)
-{
-    AVCDecPicBuffer *dpb = video->decPicBuf;
-    int ii, status;
-
-    /* Before doing any decoding, check if there's a frame memory available */
-    /* look for next unused dpb->fs, or complementary field pair */
-    /* video->currPic is assigned to this */
-
-    /* There's also restriction on the frame_num, see page 59 of JVT-I1010.doc. */
-
-    for (ii = 0; ii < dpb->num_fs; ii++)
-    {
-        /* looking for the one not used or not reference and has been outputted */
-        if (dpb->fs[ii]->IsReference == 0 && dpb->fs[ii]->IsOutputted == 3)
-        {
-            video->currFS = dpb->fs[ii];
-#ifdef PV_MEMORY_POOL
-            status = avcHandle->CBAVC_FrameBind(avcHandle->userData, ii, &(video->currFS->base_dpb));
-            if (status == AVC_FAIL)
-            {
-                return AVC_NO_BUFFER; /* this should not happen */
-            }
-#endif
-            break;
-        }
-    }
-    if (ii == dpb->num_fs)
-    {
-        return AVC_PICTURE_OUTPUT_READY; /* no empty frame available */
-    }
-    return AVC_SUCCESS;
-}
-
-OSCL_EXPORT_REF void DPBInitPic(AVCCommonObj *video, int CurrPicNum)
-{
-    int offset = 0;
-    int offsetc = 0;
-    int luma_framesize;
-    /* this part has to be set here, assuming that slice header and POC have been decoded. */
-    /* used in GetOutput API */
-    video->currFS->PicOrderCnt = video->PicOrderCnt;
-    video->currFS->FrameNum = video->sliceHdr->frame_num;
-    video->currFS->FrameNumWrap = CurrPicNum;    // MC_FIX
-    /* initialize everything to zero */
-    video->currFS->IsOutputted = 0;
-    video->currFS->IsReference = 0;
-    video->currFS->IsLongTerm = 0;
-    video->currFS->frame.isReference = FALSE;
-    video->currFS->frame.isLongTerm = FALSE;
-
-    /* initialize the pixel pointer to NULL */
-    video->currFS->frame.Sl = video->currFS->frame.Scb = video->currFS->frame.Scr = NULL;
-
-    /* determine video->currPic */
-    /* assign dbp->base_dpb to fs[i]->frame.Sl, Scb, Scr .*/
-    /* For PicSizeInMbs, see DecodeSliceHeader() */
-
-    video->currPic = &(video->currFS->frame);
-
-    video->currPic->padded = 0; // reset this flag to not-padded
-
-    if (video->padded_size)
-    {
-        offset = ((video->PicWidthInSamplesL + 32) << 4) + 16; // offset to the origin
-        offsetc = (offset >> 2) + 4;
-        luma_framesize = (int)((((video->FrameHeightInMbs + 2) * (video->PicWidthInMbs + 2)) << 8));
-    }
-    else
-        luma_framesize = video->PicSizeInMbs << 8;
-
-
-    video->currPic->Sl = video->currFS->base_dpb + offset;
-    video->currPic->Scb = video->currFS->base_dpb  + luma_framesize + offsetc;
-    video->currPic->Scr = video->currPic->Scb + (luma_framesize >> 2);
-    video->currPic->pitch = video->PicWidthInSamplesL + (video->padded_size == 0 ? 0 : 32);
-
-
-    video->currPic->height = video->PicHeightInSamplesL;
-    video->currPic->width = video->PicWidthInSamplesL;
-    video->currPic->PicNum = CurrPicNum;
-}
-
-/* to release skipped frame after encoding */
-OSCL_EXPORT_REF void DPBReleaseCurrentFrame(AVCHandle *avcHandle, AVCCommonObj *video)
-{
-    AVCDecPicBuffer *dpb = video->decPicBuf;
-    int ii;
-
-    video->currFS->IsOutputted = 3; // return this buffer.
-
-#ifdef PV_MEMORY_POOL /* for non-memory pool, no need to do anything */
-
-    /* search for current frame index */
-    ii = dpb->num_fs;
-    while (ii--)
-    {
-        if (dpb->fs[ii] == video->currFS)
-        {
-            avcHandle->CBAVC_FrameUnbind(avcHandle->userData, ii);
-            break;
-        }
-    }
-#endif
-
-    return ;
-}
-
-/* see subclause 8.2.5.1 */
-OSCL_EXPORT_REF AVCStatus StorePictureInDPB(AVCHandle *avcHandle, AVCCommonObj *video)
-{
-    AVCStatus status;
-    AVCDecPicBuffer *dpb = video->decPicBuf;
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    int ii, num_ref;
-
-    /* number 1 of 8.2.5.1, we handle gaps in frame_num differently without using the memory */
-    /* to be done!!!! */
-
-    /* number 3 of 8.2.5.1 */
-    if (video->nal_unit_type == AVC_NALTYPE_IDR)
-    {
-        for (ii = 0; ii < dpb->num_fs; ii++)
-        {
-            if (dpb->fs[ii] != video->currFS) /* not current frame */
-            {
-                dpb->fs[ii]->IsReference = 0; /* mark as unused for reference */
-                dpb->fs[ii]->IsLongTerm = 0;  /* but still used until output */
-                dpb->fs[ii]->IsOutputted |= 0x02;
-#ifdef PV_MEMORY_POOL
-                if (dpb->fs[ii]->IsOutputted == 3)
-                {
-                    avcHandle->CBAVC_FrameUnbind(avcHandle->userData, ii);
-                }
-#endif
-            }
-        }
-
-        video->currPic->isReference = TRUE;
-        video->currFS->IsReference = 3;
-
-        if (sliceHdr->long_term_reference_flag == 0)
-        {
-            video->currPic->isLongTerm = FALSE;
-            video->currFS->IsLongTerm = 0;
-            video->MaxLongTermFrameIdx = -1;
-        }
-        else
-        {
-            video->currPic->isLongTerm = TRUE;
-            video->currFS->IsLongTerm = 3;
-            video->currFS->LongTermFrameIdx = 0;
-            video->MaxLongTermFrameIdx = 0;
-        }
-        if (sliceHdr->no_output_of_prior_pics_flag)
-        {
-            for (ii = 0; ii < dpb->num_fs; ii++)
-            {
-                if (dpb->fs[ii] != video->currFS) /* not current frame */
-                {
-                    dpb->fs[ii]->IsOutputted = 3;
-#ifdef PV_MEMORY_POOL
-                    avcHandle->CBAVC_FrameUnbind(avcHandle->userData, ii);
-#endif
-                }
-            }
-        }
-        video->mem_mgr_ctrl_eq_5 = TRUE;    /* flush reference frames MC_FIX */
-    }
-    else
-    {
-        if (video->currPic->isReference == TRUE)
-        {
-            if (sliceHdr->adaptive_ref_pic_marking_mode_flag == 0)
-            {
-                status = sliding_window_process(avcHandle, video, dpb); /* we may have to do this after adaptive_memory_marking */
-            }
-            else
-            {
-                status = adaptive_memory_marking(avcHandle, video, dpb, sliceHdr);
-            }
-            if (status != AVC_SUCCESS)
-            {
-                return status;
-            }
-        }
-    }
-    /* number 4 of 8.2.5.1 */
-    /* This basically says every frame must be at least used for short-term ref. */
-    /* Need to be revisited!!! */
-    /* look at insert_picture_in_dpb() */
-
-
-
-    if (video->nal_unit_type != AVC_NALTYPE_IDR && video->currPic->isLongTerm == FALSE)
-    {
-        if (video->currPic->isReference)
-        {
-            video->currFS->IsReference = 3;
-        }
-        else
-        {
-            video->currFS->IsReference = 0;
-        }
-        video->currFS->IsLongTerm = 0;
-    }
-
-    /* check if number of reference frames doesn't exceed num_ref_frames */
-    num_ref = 0;
-    for (ii = 0; ii < dpb->num_fs; ii++)
-    {
-        if (dpb->fs[ii]->IsReference)
-        {
-            num_ref++;
-        }
-    }
-
-    if (num_ref > (int)video->currSeqParams->num_ref_frames)
-    {
-        return AVC_FAIL; /* out of range */
-    }
-
-    return AVC_SUCCESS;
-}
-
-
-AVCStatus sliding_window_process(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb)
-{
-    int ii, numShortTerm, numLongTerm;
-    int32 MinFrameNumWrap;
-    int MinIdx;
-
-
-    numShortTerm = 0;
-    numLongTerm = 0;
-    for (ii = 0; ii < dpb->num_fs; ii++)
-    {
-        if (dpb->fs[ii] != video->currFS) /* do not count the current frame */
-        {
-            if (dpb->fs[ii]->IsLongTerm)
-            {
-                numLongTerm++;
-            }
-            else if (dpb->fs[ii]->IsReference)
-            {
-                numShortTerm++;
-            }
-        }
-    }
-
-    while (numShortTerm + numLongTerm >= (int)video->currSeqParams->num_ref_frames)
-    {
-        /* get short-term ref frame with smallest PicOrderCnt */
-        /* this doesn't work for all I-slice clip since PicOrderCnt will not be initialized */
-
-        MinFrameNumWrap = 0x7FFFFFFF;
-        MinIdx = -1;
-        for (ii = 0; ii < dpb->num_fs; ii++)
-        {
-            if (dpb->fs[ii]->IsReference && !dpb->fs[ii]->IsLongTerm)
-            {
-                if (dpb->fs[ii]->FrameNumWrap < MinFrameNumWrap)
-                {
-                    MinFrameNumWrap = dpb->fs[ii]->FrameNumWrap;
-                    MinIdx = ii;
-                }
-            }
-        }
-        if (MinIdx < 0) /* something wrong, impossible */
-        {
-            return AVC_FAIL;
-        }
-
-        /* mark the frame with smallest PicOrderCnt to be unused for reference */
-        dpb->fs[MinIdx]->IsReference = 0;
-        dpb->fs[MinIdx]->IsLongTerm = 0;
-        dpb->fs[MinIdx]->frame.isReference = FALSE;
-        dpb->fs[MinIdx]->frame.isLongTerm = FALSE;
-        dpb->fs[MinIdx]->IsOutputted |= 0x02;
-#ifdef PV_MEMORY_POOL
-        if (dpb->fs[MinIdx]->IsOutputted == 3)
-        {
-            avcHandle->CBAVC_FrameUnbind(avcHandle->userData, MinIdx);
-        }
-#endif
-        numShortTerm--;
-    }
-    return AVC_SUCCESS;
-}
-
-/* see subclause 8.2.5.4 */
-AVCStatus adaptive_memory_marking(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb, AVCSliceHeader *sliceHdr)
-{
-    int ii;
-
-    ii = 0;
-    while (ii < MAX_DEC_REF_PIC_MARKING && sliceHdr->memory_management_control_operation[ii] != 0)
-    {
-        switch (sliceHdr->memory_management_control_operation[ii])
-        {
-            case 1:
-                MemMgrCtrlOp1(avcHandle, video, dpb, sliceHdr->difference_of_pic_nums_minus1[ii]);
-                //      update_ref_list(dpb);
-                break;
-            case 2:
-                MemMgrCtrlOp2(avcHandle, dpb, sliceHdr->long_term_pic_num[ii]);
-                break;
-            case 3:
-                MemMgrCtrlOp3(avcHandle, video, dpb, sliceHdr->difference_of_pic_nums_minus1[ii], sliceHdr->long_term_frame_idx[ii]);
-                break;
-            case 4:
-                MemMgrCtrlOp4(avcHandle, video, dpb, sliceHdr->max_long_term_frame_idx_plus1[ii]);
-                break;
-            case 5:
-                MemMgrCtrlOp5(avcHandle, video, dpb);
-                video->currFS->FrameNum = 0;    //
-                video->currFS->PicOrderCnt = 0;
-                break;
-            case 6:
-                MemMgrCtrlOp6(avcHandle, video, dpb, sliceHdr->long_term_frame_idx[ii]);
-                break;
-        }
-        ii++;
-    }
-
-    if (ii == MAX_DEC_REF_PIC_MARKING)
-    {
-        return AVC_FAIL; /* exceed the limit */
-    }
-
-    return AVC_SUCCESS;
-}
-
-
-/* see subclause 8.2.5.4.1, mark short-term picture as "unused for reference" */
-void MemMgrCtrlOp1(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb, int difference_of_pic_nums_minus1)
-{
-    int picNumX, ii;
-
-    picNumX = video->CurrPicNum - (difference_of_pic_nums_minus1 + 1);
-
-    for (ii = 0; ii < dpb->num_fs; ii++)
-    {
-        if (dpb->fs[ii]->IsReference == 3 && dpb->fs[ii]->IsLongTerm == 0)
-        {
-            if (dpb->fs[ii]->frame.PicNum == picNumX)
-            {
-                unmark_for_reference(avcHandle, dpb, ii);
-                return ;
-            }
-        }
-    }
-
-    return ;
-}
-
-/* see subclause 8.2.5.4.2 mark long-term picture as "unused for reference" */
-void MemMgrCtrlOp2(AVCHandle *avcHandle, AVCDecPicBuffer *dpb, int long_term_pic_num)
-{
-    int ii;
-
-    for (ii = 0; ii < dpb->num_fs; ii++)
-    {
-        if (dpb->fs[ii]->IsLongTerm == 3)
-        {
-            if (dpb->fs[ii]->frame.LongTermPicNum == long_term_pic_num)
-            {
-                unmark_for_reference(avcHandle, dpb, ii);
-            }
-        }
-    }
-}
-
-/* see subclause 8.2.5.4.3 assign LongTermFrameIdx to a short-term ref picture */
-void MemMgrCtrlOp3(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb, uint difference_of_pic_nums_minus1,
-                   uint long_term_frame_idx)
-{
-    int picNumX, ii;
-
-    picNumX = video->CurrPicNum - (difference_of_pic_nums_minus1 + 1);
-
-    /* look for fs[i] with long_term_frame_idx */
-
-    unmark_long_term_frame_for_reference_by_frame_idx(avcHandle, dpb, long_term_frame_idx);
-
-
-    /* now mark the picture with picNumX to long term frame idx */
-
-    for (ii = 0; ii < dpb->num_fs; ii++)
-    {
-        if (dpb->fs[ii]->IsReference == 3)
-        {
-            if ((dpb->fs[ii]->frame.isLongTerm == FALSE) && (dpb->fs[ii]->frame.PicNum == picNumX))
-            {
-                dpb->fs[ii]->LongTermFrameIdx = long_term_frame_idx;
-                dpb->fs[ii]->frame.LongTermPicNum = long_term_frame_idx;
-
-                dpb->fs[ii]->frame.isLongTerm = TRUE;
-
-                dpb->fs[ii]->IsLongTerm = 3;
-                return;
-            }
-        }
-    }
-
-}
-
-/* see subclause 8.2.5.4.4, MaxLongTermFrameIdx */
-void MemMgrCtrlOp4(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb, uint max_long_term_frame_idx_plus1)
-{
-    int ii;
-
-    video->MaxLongTermFrameIdx = max_long_term_frame_idx_plus1 - 1;
-
-    /* then mark long term frame with exceeding LongTermFrameIdx to unused for reference. */
-    for (ii = 0; ii < dpb->num_fs; ii++)
-    {
-        if (dpb->fs[ii]->IsLongTerm && dpb->fs[ii] != video->currFS)
-        {
-            if (dpb->fs[ii]->LongTermFrameIdx > video->MaxLongTermFrameIdx)
-            {
-                unmark_for_reference(avcHandle, dpb, ii);
-            }
-        }
-    }
-}
-
-/* see subclause 8.2.5.4.5 mark all reference picture as "unused for reference" and setting
-MaxLongTermFrameIdx to "no long-term frame indices" */
-void MemMgrCtrlOp5(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb)
-{
-    int ii;
-
-    video->MaxLongTermFrameIdx = -1;
-    for (ii = 0; ii < dpb->num_fs; ii++) /* including the current frame ??????*/
-    {
-        if (dpb->fs[ii] != video->currFS) // MC_FIX
-        {
-            unmark_for_reference(avcHandle, dpb, ii);
-        }
-    }
-
-    video->mem_mgr_ctrl_eq_5 = TRUE;
-}
-
-/* see subclause 8.2.5.4.6 assing long-term frame index to the current picture */
-void MemMgrCtrlOp6(AVCHandle *avcHandle, AVCCommonObj *video, AVCDecPicBuffer *dpb, uint long_term_frame_idx)
-{
-
-    unmark_long_term_frame_for_reference_by_frame_idx(avcHandle, dpb, long_term_frame_idx);
-    video->currFS->IsLongTerm = 3;
-    video->currFS->IsReference = 3;
-
-    video->currPic->isLongTerm = TRUE;
-    video->currPic->isReference = TRUE;
-    video->currFS->LongTermFrameIdx = long_term_frame_idx;
-}
-
-
-void unmark_for_reference(AVCHandle *avcHandle, AVCDecPicBuffer *dpb, uint idx)
-{
-
-    AVCFrameStore *fs = dpb->fs[idx];
-    fs->frame.isReference = FALSE;
-    fs->frame.isLongTerm = FALSE;
-
-    fs->IsLongTerm = 0;
-    fs->IsReference = 0;
-    fs->IsOutputted |= 0x02;
-#ifdef PV_MEMORY_POOL
-    if (fs->IsOutputted == 3)
-    {
-        avcHandle->CBAVC_FrameUnbind(avcHandle->userData, idx);
-    }
-#endif
-    return ;
-}
-
-void unmark_long_term_frame_for_reference_by_frame_idx(AVCHandle *avcHandle, AVCDecPicBuffer *dpb, uint long_term_frame_idx)
-{
-    int ii;
-    for (ii = 0; ii < dpb->num_fs; ii++)
-    {
-
-        if (dpb->fs[ii]->IsLongTerm && (dpb->fs[ii]->LongTermFrameIdx == (int)long_term_frame_idx))
-        {
-            unmark_for_reference(avcHandle, dpb, ii);
-        }
-
-    }
-}
-
-
diff --git a/media/libstagefright/codecs/avc/common/src/fmo.cpp b/media/libstagefright/codecs/avc/common/src/fmo.cpp
deleted file mode 100644
index d66eba3..0000000
--- a/media/libstagefright/codecs/avc/common/src/fmo.cpp
+++ /dev/null
@@ -1,249 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include <string.h>
-
-#include "avclib_common.h"
-
-/* see subclause 8.2.2 Decoding process for macroblock to slice group map */
-OSCL_EXPORT_REF AVCStatus FMOInit(AVCCommonObj *video)
-{
-    AVCPicParamSet *currPPS = video->currPicParams;
-    int *MbToSliceGroupMap = video->MbToSliceGroupMap;
-    int PicSizeInMapUnits = video->PicSizeInMapUnits;
-    int PicWidthInMbs = video->PicWidthInMbs;
-
-    if (currPPS->num_slice_groups_minus1 == 0)
-    {
-        memset(video->MbToSliceGroupMap, 0, video->PicSizeInMapUnits*sizeof(uint));
-    }
-    else
-    {
-        switch (currPPS->slice_group_map_type)
-        {
-            case 0:
-                FmoGenerateType0MapUnitMap(MbToSliceGroupMap, currPPS->run_length_minus1, currPPS->num_slice_groups_minus1, PicSizeInMapUnits);
-                break;
-            case 1:
-                FmoGenerateType1MapUnitMap(MbToSliceGroupMap, PicWidthInMbs, currPPS->num_slice_groups_minus1, PicSizeInMapUnits);
-                break;
-            case 2:
-                FmoGenerateType2MapUnitMap(currPPS, MbToSliceGroupMap, PicWidthInMbs, currPPS->num_slice_groups_minus1, PicSizeInMapUnits);
-                break;
-            case 3:
-                FmoGenerateType3MapUnitMap(video, currPPS, MbToSliceGroupMap, PicWidthInMbs);
-                break;
-            case 4:
-                FmoGenerateType4MapUnitMap(MbToSliceGroupMap, video->MapUnitsInSliceGroup0, currPPS->slice_group_change_direction_flag, PicSizeInMapUnits);
-                break;
-            case 5:
-                FmoGenerateType5MapUnitMap(MbToSliceGroupMap, video, currPPS->slice_group_change_direction_flag, PicSizeInMapUnits);
-                break;
-            case 6:
-                FmoGenerateType6MapUnitMap(MbToSliceGroupMap, (int*)currPPS->slice_group_id, PicSizeInMapUnits);
-                break;
-            default:
-                return AVC_FAIL; /* out of range, shouldn't come this far */
-        }
-    }
-
-    return AVC_SUCCESS;
-}
-
-/* see subclause 8.2.2.1 interleaved slice group map type*/
-void FmoGenerateType0MapUnitMap(int *mapUnitToSliceGroupMap, uint *run_length_minus1, uint num_slice_groups_minus1, uint PicSizeInMapUnits)
-{
-    uint iGroup, j;
-    uint i = 0;
-    do
-    {
-        for (iGroup = 0;
-                (iGroup <= num_slice_groups_minus1) && (i < PicSizeInMapUnits);
-                i += run_length_minus1[iGroup++] + 1)
-        {
-            for (j = 0; j <= run_length_minus1[ iGroup ] && i + j < PicSizeInMapUnits; j++)
-                mapUnitToSliceGroupMap[i+j] = iGroup;
-        }
-    }
-    while (i < PicSizeInMapUnits);
-}
-
-/* see subclause 8.2.2.2 dispersed slice group map type*/
-void FmoGenerateType1MapUnitMap(int *mapUnitToSliceGroupMap, int PicWidthInMbs, uint num_slice_groups_minus1, uint PicSizeInMapUnits)
-{
-    uint i;
-    for (i = 0; i < PicSizeInMapUnits; i++)
-    {
-        mapUnitToSliceGroupMap[i] = ((i % PicWidthInMbs) + (((i / PicWidthInMbs) * (num_slice_groups_minus1 + 1)) / 2))
-                                    % (num_slice_groups_minus1 + 1);
-    }
-}
-
-/* see subclause 8.2.2.3 foreground with left-over slice group map type */
-void FmoGenerateType2MapUnitMap(AVCPicParamSet *pps, int *mapUnitToSliceGroupMap, int PicWidthInMbs,
-                                uint num_slice_groups_minus1, uint PicSizeInMapUnits)
-{
-    int iGroup;
-    uint i, x, y;
-    uint yTopLeft, xTopLeft, yBottomRight, xBottomRight;
-
-    for (i = 0; i < PicSizeInMapUnits; i++)
-    {
-        mapUnitToSliceGroupMap[ i ] = num_slice_groups_minus1;
-    }
-
-    for (iGroup = num_slice_groups_minus1 - 1 ; iGroup >= 0; iGroup--)
-    {
-        yTopLeft = pps->top_left[ iGroup ] / PicWidthInMbs;
-        xTopLeft = pps->top_left[ iGroup ] % PicWidthInMbs;
-        yBottomRight = pps->bottom_right[ iGroup ] / PicWidthInMbs;
-        xBottomRight = pps->bottom_right[ iGroup ] % PicWidthInMbs;
-        for (y = yTopLeft; y <= yBottomRight; y++)
-        {
-            for (x = xTopLeft; x <= xBottomRight; x++)
-            {
-                mapUnitToSliceGroupMap[ y * PicWidthInMbs + x ] = iGroup;
-            }
-        }
-    }
-}
-
-
-/* see subclause 8.2.2.4 box-out slice group map type */
-/* follow the text rather than the JM, it's quite different. */
-void FmoGenerateType3MapUnitMap(AVCCommonObj *video, AVCPicParamSet* pps, int *mapUnitToSliceGroupMap,
-                                int PicWidthInMbs)
-{
-    uint i, k;
-    int leftBound, topBound, rightBound, bottomBound;
-    int x, y, xDir, yDir;
-    int mapUnitVacant;
-    uint PicSizeInMapUnits = video->PicSizeInMapUnits;
-    uint MapUnitsInSliceGroup0 = video->MapUnitsInSliceGroup0;
-
-    for (i = 0; i < PicSizeInMapUnits; i++)
-    {
-        mapUnitToSliceGroupMap[ i ] = 1;
-    }
-
-    x = (PicWidthInMbs - pps->slice_group_change_direction_flag) / 2;
-    y = (video->PicHeightInMapUnits - pps->slice_group_change_direction_flag) / 2;
-
-    leftBound   = x;
-    topBound    = y;
-    rightBound  = x;
-    bottomBound = y;
-
-    xDir =  pps->slice_group_change_direction_flag - 1;
-    yDir =  pps->slice_group_change_direction_flag;
-
-    for (k = 0; k < MapUnitsInSliceGroup0; k += mapUnitVacant)
-    {
-        mapUnitVacant = (mapUnitToSliceGroupMap[ y * PicWidthInMbs + x ]  ==  1);
-        if (mapUnitVacant)
-        {
-            mapUnitToSliceGroupMap[ y * PicWidthInMbs + x ] = 0;
-        }
-
-        if (xDir  ==  -1  &&  x  ==  leftBound)
-        {
-            leftBound = AVC_MAX(leftBound - 1, 0);
-            x = leftBound;
-            xDir = 0;
-            yDir = 2 * pps->slice_group_change_direction_flag - 1;
-        }
-        else if (xDir  ==  1  &&  x  ==  rightBound)
-        {
-            rightBound = AVC_MIN(rightBound + 1, (int)PicWidthInMbs - 1);
-            x = rightBound;
-            xDir = 0;
-            yDir = 1 - 2 * pps->slice_group_change_direction_flag;
-        }
-        else if (yDir  ==  -1  &&  y  ==  topBound)
-        {
-            topBound = AVC_MAX(topBound - 1, 0);
-            y = topBound;
-            xDir = 1 - 2 * pps->slice_group_change_direction_flag;
-            yDir = 0;
-        }
-        else  if (yDir  ==  1  &&  y  ==  bottomBound)
-        {
-            bottomBound = AVC_MIN(bottomBound + 1, (int)video->PicHeightInMapUnits - 1);
-            y = bottomBound;
-            xDir = 2 * pps->slice_group_change_direction_flag - 1;
-            yDir = 0;
-        }
-        else
-        {
-            x = x + xDir;
-            y = y + yDir;
-        }
-    }
-}
-
-/* see subclause 8.2.2.5 raster scan slice group map types */
-void FmoGenerateType4MapUnitMap(int *mapUnitToSliceGroupMap, int MapUnitsInSliceGroup0, int slice_group_change_direction_flag, uint PicSizeInMapUnits)
-{
-    uint sizeOfUpperLeftGroup = slice_group_change_direction_flag ? (PicSizeInMapUnits - MapUnitsInSliceGroup0) : MapUnitsInSliceGroup0;
-
-    uint i;
-
-    for (i = 0; i < PicSizeInMapUnits; i++)
-        if (i < sizeOfUpperLeftGroup)
-            mapUnitToSliceGroupMap[ i ] = 1 - slice_group_change_direction_flag;
-        else
-            mapUnitToSliceGroupMap[ i ] = slice_group_change_direction_flag;
-
-}
-
-/* see subclause 8.2.2.6, wipe slice group map type. */
-void FmoGenerateType5MapUnitMap(int *mapUnitToSliceGroupMap, AVCCommonObj *video,
-                                int slice_group_change_direction_flag, uint PicSizeInMapUnits)
-{
-    int PicWidthInMbs = video->PicWidthInMbs;
-    int PicHeightInMapUnits = video->PicHeightInMapUnits;
-    int MapUnitsInSliceGroup0 = video->MapUnitsInSliceGroup0;
-    int sizeOfUpperLeftGroup = slice_group_change_direction_flag ? (PicSizeInMapUnits - MapUnitsInSliceGroup0) : MapUnitsInSliceGroup0;
-    int i, j, k = 0;
-
-    for (j = 0; j < PicWidthInMbs; j++)
-    {
-        for (i = 0; i < PicHeightInMapUnits; i++)
-        {
-            if (k++ < sizeOfUpperLeftGroup)
-            {
-                mapUnitToSliceGroupMap[ i * PicWidthInMbs + j ] = 1 - slice_group_change_direction_flag;
-            }
-            else
-            {
-                mapUnitToSliceGroupMap[ i * PicWidthInMbs + j ] = slice_group_change_direction_flag;
-            }
-        }
-    }
-}
-
-/* see subclause 8.2.2.7, explicit slice group map */
-void FmoGenerateType6MapUnitMap(int *mapUnitToSliceGroupMap, int *slice_group_id, uint PicSizeInMapUnits)
-{
-    uint i;
-    for (i = 0; i < PicSizeInMapUnits; i++)
-    {
-        mapUnitToSliceGroupMap[i] = slice_group_id[i];
-    }
-}
-
-
diff --git a/media/libstagefright/codecs/avc/common/src/mb_access.cpp b/media/libstagefright/codecs/avc/common/src/mb_access.cpp
deleted file mode 100644
index 414b8f7..0000000
--- a/media/libstagefright/codecs/avc/common/src/mb_access.cpp
+++ /dev/null
@@ -1,471 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include <string.h>
-
-#include "avclib_common.h"
-
-OSCL_EXPORT_REF void InitNeighborAvailability(AVCCommonObj *video, int mbNum)
-{
-    int PicWidthInMbs = video->PicWidthInMbs;
-
-    // do frame-only and postpone intraAvail calculattion
-    video->mbAddrA = mbNum - 1;
-    video->mbAddrB = mbNum - PicWidthInMbs;
-    video->mbAddrC = mbNum - PicWidthInMbs + 1;
-    video->mbAddrD = mbNum - PicWidthInMbs - 1;
-
-    video->mbAvailA = video->mbAvailB = video->mbAvailC = video->mbAvailD = 0;
-    if (video->mb_x)
-    {
-        video->mbAvailA = (video->mblock[video->mbAddrA].slice_id == video->currMB->slice_id);
-        if (video->mb_y)
-        {
-            video->mbAvailD = (video->mblock[video->mbAddrD].slice_id == video->currMB->slice_id);
-        }
-    }
-
-    if (video->mb_y)
-    {
-        video->mbAvailB = (video->mblock[video->mbAddrB].slice_id == video->currMB->slice_id);
-        if (video->mb_x < (PicWidthInMbs - 1))
-        {
-            video->mbAvailC = (video->mblock[video->mbAddrC].slice_id == video->currMB->slice_id);
-        }
-    }
-    return ;
-}
-
-bool mb_is_available(AVCMacroblock *mblock, uint PicSizeInMbs, int mbAddr, int currMbAddr)
-{
-    if (mbAddr < 0 || mbAddr >= (int)PicSizeInMbs)
-    {
-        return FALSE;
-    }
-
-    if (mblock[mbAddr].slice_id != mblock[currMbAddr].slice_id)
-    {
-        return FALSE;
-    }
-
-    return TRUE;
-}
-
-OSCL_EXPORT_REF int predict_nnz(AVCCommonObj *video, int i, int j)
-{
-    int pred_nnz = 0;
-    int cnt      = 1;
-    AVCMacroblock *tempMB;
-
-    /* left block */
-    /*getLuma4x4Neighbour(video, mb_nr, i, j, -1, 0, &pix);
-    leftMB = video->mblock + pix.mb_addr; */
-    /* replace the above with below (won't work for field decoding),  1/19/04 */
-
-    if (i)
-    {
-        pred_nnz = video->currMB->nz_coeff[(j<<2)+i-1];
-    }
-    else
-    {
-        if (video->mbAvailA)
-        {
-            tempMB = video->mblock + video->mbAddrA;
-            pred_nnz = tempMB->nz_coeff[(j<<2)+3];
-        }
-        else
-        {
-            cnt = 0;
-        }
-    }
-
-
-    /* top block */
-    /*getLuma4x4Neighbour(video, mb_nr, i, j, 0, -1, &pix);
-    topMB = video->mblock + pix.mb_addr;*/
-    /* replace the above with below (won't work for field decoding),  1/19/04 */
-
-    if (j)
-    {
-        pred_nnz += video->currMB->nz_coeff[((j-1)<<2)+i];
-        cnt++;
-    }
-    else
-    {
-        if (video->mbAvailB)
-        {
-            tempMB = video->mblock + video->mbAddrB;
-            pred_nnz += tempMB->nz_coeff[12+i];
-            cnt++;
-        }
-    }
-
-
-    if (cnt == 2)
-    {
-        pred_nnz = (pred_nnz + 1) >> 1;
-    }
-
-    return pred_nnz;
-
-}
-
-
-OSCL_EXPORT_REF int predict_nnz_chroma(AVCCommonObj *video, int i, int j)
-{
-    int pred_nnz = 0;
-    int cnt      = 1;
-    AVCMacroblock *tempMB;
-
-    /* left block */
-    /*getChroma4x4Neighbour(video, mb_nr, i%2, j-4, -1, 0, &pix);
-    leftMB = video->mblock + pix.mb_addr;*/
-    /* replace the above with below (won't work for field decoding),  1/19/04 */
-    if (i&1)
-    {
-        pred_nnz = video->currMB->nz_coeff[(j<<2)+i-1];
-
-    }
-    else
-    {
-        if (video->mbAvailA)
-        {
-            tempMB = video->mblock + video->mbAddrA;
-            pred_nnz = tempMB->nz_coeff[(j<<2)+i+1];
-        }
-        else
-        {
-            cnt = 0;
-        }
-    }
-
-
-    /* top block */
-    /*getChroma4x4Neighbour(video, mb_nr, i%2, j-4, 0, -1, &pix);
-    topMB = video->mblock + pix.mb_addr;*/
-    /* replace the above with below (won't work for field decoding),  1/19/04 */
-
-    if (j&1)
-    {
-        pred_nnz += video->currMB->nz_coeff[((j-1)<<2)+i];
-        cnt++;
-    }
-    else
-    {
-        if (video->mbAvailB)
-        {
-            tempMB = video->mblock + video->mbAddrB;
-            pred_nnz += tempMB->nz_coeff[20+i];
-            cnt++;
-        }
-
-    }
-
-    if (cnt == 2)
-    {
-        pred_nnz = (pred_nnz + 1) >> 1;
-    }
-
-    return pred_nnz;
-}
-
-OSCL_EXPORT_REF void GetMotionVectorPredictor(AVCCommonObj *video, int encFlag)
-{
-    AVCMacroblock *currMB = video->currMB;
-    AVCMacroblock *MB_A, *MB_B, *MB_C, *MB_D;
-    int block_x, block_y, block_x_1, block_y_1, new_block_x;
-    int mbPartIdx, subMbPartIdx, offset_indx;
-    int16 *mv, pmv_x, pmv_y;
-    int nmSubMbHeight, nmSubMbWidth, mbPartIdx_X, mbPartIdx_Y;
-    int avail_a, avail_b, avail_c;
-    const static uint32 C = 0x5750;
-    int i, j, offset_MbPart_indx, refIdxLXA, refIdxLXB, refIdxLXC = 0, curr_ref_idx;
-    int pmv_A_x, pmv_B_x, pmv_C_x = 0, pmv_A_y, pmv_B_y, pmv_C_y = 0;
-
-    /* we have to take care of Intra/skip blocks somewhere, i.e. set MV to  0 and set ref to -1! */
-    /* we have to populate refIdx as well */
-
-
-    MB_A = &video->mblock[video->mbAddrA];
-    MB_B = &video->mblock[video->mbAddrB];
-
-
-    if (currMB->mbMode == AVC_SKIP /* && !encFlag */) /* only for decoder */
-    {
-        currMB->ref_idx_L0[0] = currMB->ref_idx_L0[1] = currMB->ref_idx_L0[2] = currMB->ref_idx_L0[3] = 0;
-        if (video->mbAvailA && video->mbAvailB)
-        {
-            if ((MB_A->ref_idx_L0[1] == 0 && MB_A->mvL0[3] == 0) ||
-                    (MB_B->ref_idx_L0[2] == 0 && MB_B->mvL0[12] == 0))
-            {
-                memset(currMB->mvL0, 0, sizeof(int32)*16);
-                return;
-            }
-        }
-        else
-        {
-            memset(currMB->mvL0, 0, sizeof(int32)*16);
-            return;
-        }
-        video->mvd_l0[0][0][0] = 0;
-        video->mvd_l0[0][0][1] = 0;
-    }
-
-    MB_C = &video->mblock[video->mbAddrC];
-    MB_D = &video->mblock[video->mbAddrD];
-
-    offset_MbPart_indx = 0;
-    for (mbPartIdx = 0; mbPartIdx < currMB->NumMbPart; mbPartIdx++)
-    {
-        offset_indx = 0;
-        nmSubMbHeight = currMB->SubMbPartHeight[mbPartIdx] >> 2;
-        nmSubMbWidth = currMB->SubMbPartWidth[mbPartIdx] >> 2;
-        mbPartIdx_X = ((mbPartIdx + offset_MbPart_indx) & 1) << 1;
-        mbPartIdx_Y = (mbPartIdx + offset_MbPart_indx) & 2;
-
-        for (subMbPartIdx = 0; subMbPartIdx < currMB->NumSubMbPart[mbPartIdx]; subMbPartIdx++)
-        {
-            block_x = mbPartIdx_X + ((subMbPartIdx + offset_indx) & 1);
-            block_y = mbPartIdx_Y + (((subMbPartIdx + offset_indx) >> 1) & 1);
-
-            block_x_1 = block_x - 1;
-            block_y_1 = block_y - 1;
-            refIdxLXA = refIdxLXB = refIdxLXC = -1;
-            pmv_A_x = pmv_A_y = pmv_B_x = pmv_B_y = pmv_C_x = pmv_C_y = 0;
-
-            if (block_x)
-            {
-                avail_a = 1;
-                refIdxLXA = currMB->ref_idx_L0[(block_y & 2) + (block_x_1 >> 1)];
-                mv = (int16*)(currMB->mvL0 + (block_y << 2) + block_x_1);
-                pmv_A_x = *mv++;
-                pmv_A_y = *mv;
-            }
-            else
-            {
-                avail_a = video->mbAvailA;
-                if (avail_a)
-                {
-                    refIdxLXA = MB_A->ref_idx_L0[(block_y & 2) + 1];
-                    mv = (int16*)(MB_A->mvL0 + (block_y << 2) + 3);
-                    pmv_A_x = *mv++;
-                    pmv_A_y = *mv;
-                }
-            }
-
-            if (block_y)
-            {
-                avail_b = 1;
-                refIdxLXB = currMB->ref_idx_L0[(block_y_1 & 2) + (block_x >> 1)];
-                mv = (int16*)(currMB->mvL0 + (block_y_1 << 2) + block_x);
-                pmv_B_x = *mv++;
-                pmv_B_y = *mv;
-            }
-
-            else
-            {
-                avail_b = video->mbAvailB;
-                if (avail_b)
-                {
-                    refIdxLXB = MB_B->ref_idx_L0[2 + (block_x >> 1)];
-                    mv = (int16*)(MB_B->mvL0 + 12 + block_x);
-                    pmv_B_x = *mv++;
-                    pmv_B_y = *mv;
-                }
-            }
-
-            new_block_x = block_x + (currMB->SubMbPartWidth[mbPartIdx] >> 2) - 1;
-            avail_c = (C >> ((block_y << 2) + new_block_x)) & 0x1;
-
-            if (avail_c)
-            {
-                /* it guaranteed that block_y > 0 && new_block_x<3 ) */
-                refIdxLXC = currMB->ref_idx_L0[(block_y_1 & 2) + ((new_block_x+1) >> 1)];
-                mv = (int16*)(currMB->mvL0 + (block_y_1 << 2) + (new_block_x + 1));
-                pmv_C_x = *mv++;
-                pmv_C_y = *mv;
-            }
-            else
-            {
-                if (block_y == 0 && new_block_x < 3)
-                {
-                    avail_c = video->mbAvailB;
-                    if (avail_c)
-                    {
-                        refIdxLXC = MB_B->ref_idx_L0[2 + ((new_block_x+1)>>1)];
-                        mv = (int16*)(MB_B->mvL0 + 12 + (new_block_x + 1));
-                        pmv_C_x = *mv++;
-                        pmv_C_y = *mv;
-                    }
-                }
-                else if (block_y == 0 && new_block_x == 3)
-                {
-                    avail_c = video->mbAvailC;
-                    if (avail_c)
-                    {
-                        refIdxLXC = MB_C->ref_idx_L0[2];
-                        mv = (int16*)(MB_C->mvL0 + 12);
-                        pmv_C_x = *mv++;
-                        pmv_C_y = *mv;
-                    }
-                }
-
-                if (avail_c == 0)
-                {   /* check D */
-                    if (block_x && block_y)
-                    {
-                        avail_c = 1;
-                        refIdxLXC =  currMB->ref_idx_L0[(block_y_1 & 2) + (block_x_1 >> 1)];
-                        mv = (int16*)(currMB->mvL0 + (block_y_1 << 2) + block_x_1);
-                        pmv_C_x = *mv++;
-                        pmv_C_y = *mv;
-                    }
-                    else if (block_y)
-                    {
-                        avail_c = video->mbAvailA;
-                        if (avail_c)
-                        {
-                            refIdxLXC =  MB_A->ref_idx_L0[(block_y_1 & 2) + 1];
-                            mv = (int16*)(MB_A->mvL0 + (block_y_1 << 2) + 3);
-                            pmv_C_x = *mv++;
-                            pmv_C_y = *mv;
-                        }
-                    }
-                    else if (block_x)
-                    {
-                        avail_c = video->mbAvailB;
-                        if (avail_c)
-                        {
-                            refIdxLXC = MB_B->ref_idx_L0[2 + (block_x_1 >> 1)];
-                            mv = (int16*)(MB_B->mvL0 + 12 + block_x_1);
-                            pmv_C_x = *mv++;
-                            pmv_C_y = *mv;
-                        }
-                    }
-                    else
-                    {
-                        avail_c = video->mbAvailD;
-                        if (avail_c)
-                        {
-                            refIdxLXC = MB_D->ref_idx_L0[3];
-                            mv = (int16*)(MB_D->mvL0 + 15);
-                            pmv_C_x = *mv++;
-                            pmv_C_y = *mv;
-                        }
-                    }
-                }
-            }
-
-            offset_indx = currMB->SubMbPartWidth[mbPartIdx] >> 3;
-
-            curr_ref_idx = currMB->ref_idx_L0[(block_y & 2) + (block_x >> 1)];
-
-            if (avail_a && !(avail_b || avail_c))
-            {
-                pmv_x = pmv_A_x;
-                pmv_y = pmv_A_y;
-            }
-            else if (((curr_ref_idx == refIdxLXA) + (curr_ref_idx == refIdxLXB) + (curr_ref_idx == refIdxLXC)) == 1)
-            {
-                if (curr_ref_idx == refIdxLXA)
-                {
-                    pmv_x = pmv_A_x;
-                    pmv_y = pmv_A_y;
-                }
-                else if (curr_ref_idx == refIdxLXB)
-                {
-                    pmv_x = pmv_B_x;
-                    pmv_y = pmv_B_y;
-                }
-                else
-                {
-                    pmv_x = pmv_C_x;
-                    pmv_y = pmv_C_y;
-                }
-            }
-            else
-            {
-                pmv_x = AVC_MEDIAN(pmv_A_x, pmv_B_x, pmv_C_x);
-                pmv_y = AVC_MEDIAN(pmv_A_y, pmv_B_y, pmv_C_y);
-            }
-
-            /* overwrite if special case */
-            if (currMB->NumMbPart == 2)
-            {
-                if (currMB->MbPartWidth == 16)
-                {
-                    if (mbPartIdx == 0)
-                    {
-                        if (refIdxLXB == curr_ref_idx)
-                        {
-                            pmv_x = pmv_B_x;
-                            pmv_y = pmv_B_y;
-                        }
-                    }
-                    else if (refIdxLXA == curr_ref_idx)
-                    {
-                        pmv_x = pmv_A_x;
-                        pmv_y = pmv_A_y;
-                    }
-                }
-                else
-                {
-                    if (mbPartIdx == 0)
-                    {
-                        if (refIdxLXA == curr_ref_idx)
-                        {
-                            pmv_x = pmv_A_x;
-                            pmv_y = pmv_A_y;
-                        }
-                    }
-                    else if (refIdxLXC == curr_ref_idx)
-                    {
-                        pmv_x = pmv_C_x;
-                        pmv_y = pmv_C_y;
-                    }
-                }
-            }
-
-            mv = (int16*)(currMB->mvL0 + block_x + (block_y << 2));
-
-            if (encFlag) /* calculate residual MV video->mvd_l0 */
-            {
-                video->mvd_l0[mbPartIdx][subMbPartIdx][0] = *mv++ - pmv_x;
-                video->mvd_l0[mbPartIdx][subMbPartIdx][1] = *mv++ - pmv_y;
-            }
-            else    /* calculate original MV currMB->mvL0 */
-            {
-                pmv_x += video->mvd_l0[mbPartIdx][subMbPartIdx][0];
-                pmv_y += video->mvd_l0[mbPartIdx][subMbPartIdx][1];
-
-                for (i = 0; i < nmSubMbHeight; i++)
-                {
-                    for (j = 0; j < nmSubMbWidth; j++)
-                    {
-                        *mv++ = pmv_x;
-                        *mv++ = pmv_y;
-                    }
-                    mv += (8 - (j << 1));
-                }
-            }
-        }
-        offset_MbPart_indx = currMB->MbPartWidth >> 4;
-
-    }
-}
-
-
diff --git a/media/libstagefright/codecs/avc/common/src/reflist.cpp b/media/libstagefright/codecs/avc/common/src/reflist.cpp
deleted file mode 100644
index 4ddc7dd..0000000
--- a/media/libstagefright/codecs/avc/common/src/reflist.cpp
+++ /dev/null
@@ -1,596 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avclib_common.h"
-
-/** see subclause 8.2.4 Decoding process for reference picture lists construction. */
-OSCL_EXPORT_REF void RefListInit(AVCCommonObj *video)
-{
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    AVCDecPicBuffer *dpb = video->decPicBuf;
-    int slice_type = video->slice_type;
-    int i, list0idx;
-
-    AVCPictureData *tmp_s;
-
-    list0idx = 0;
-
-    if (slice_type == AVC_I_SLICE)
-    {
-        video->refList0Size = 0;
-        video->refList1Size = 0;
-
-        /* we still have to calculate FrameNumWrap to make sure that all I-slice clip
-        can perform sliding_window_operation properly. */
-
-        for (i = 0; i < dpb->num_fs; i++)
-        {
-            if ((dpb->fs[i]->IsReference == 3) && (!dpb->fs[i]->IsLongTerm))
-            {
-                /* subclause 8.2.4.1 Decoding process for picture numbers. */
-                if (dpb->fs[i]->FrameNum > (int)sliceHdr->frame_num)
-                {
-                    dpb->fs[i]->FrameNumWrap = dpb->fs[i]->FrameNum - video->MaxFrameNum;
-                }
-                else
-                {
-                    dpb->fs[i]->FrameNumWrap = dpb->fs[i]->FrameNum;
-                }
-                dpb->fs[i]->frame.PicNum = dpb->fs[i]->FrameNumWrap;
-            }
-        }
-
-
-        return ;
-    }
-    if (slice_type == AVC_P_SLICE)
-    {
-        /* Calculate FrameNumWrap and PicNum */
-
-        for (i = 0; i < dpb->num_fs; i++)
-        {
-            if ((dpb->fs[i]->IsReference == 3) && (!dpb->fs[i]->IsLongTerm))
-            {
-                /* subclause 8.2.4.1 Decoding process for picture numbers. */
-                if (dpb->fs[i]->FrameNum > (int)sliceHdr->frame_num)
-                {
-                    dpb->fs[i]->FrameNumWrap = dpb->fs[i]->FrameNum - video->MaxFrameNum;
-                }
-                else
-                {
-                    dpb->fs[i]->FrameNumWrap = dpb->fs[i]->FrameNum;
-                }
-                dpb->fs[i]->frame.PicNum = dpb->fs[i]->FrameNumWrap;
-                video->RefPicList0[list0idx++] = &(dpb->fs[i]->frame);
-            }
-        }
-
-        if (list0idx == 0)
-        {
-            dpb->fs[0]->IsReference = 3;
-            video->RefPicList0[0] = &(dpb->fs[0]->frame);
-            list0idx = 1;
-        }
-        /* order list 0 by PicNum from max to min, see subclause 8.2.4.2.1 */
-        SortPicByPicNum(video->RefPicList0, list0idx);
-        video->refList0Size = list0idx;
-
-        /* long term handling */
-        for (i = 0; i < dpb->num_fs; i++)
-        {
-            if (dpb->fs[i]->IsLongTerm == 3)
-            {
-                /* subclause 8.2.4.1 Decoding process for picture numbers. */
-                dpb->fs[i]->frame.LongTermPicNum = dpb->fs[i]->LongTermFrameIdx;
-                video->RefPicList0[list0idx++] = &(dpb->fs[i]->frame);
-            }
-        }
-
-        /* order PicNum from min to max, see subclause 8.2.4.2.1  */
-        SortPicByPicNumLongTerm(&(video->RefPicList0[video->refList0Size]), list0idx - video->refList0Size);
-        video->refList0Size = list0idx;
-
-
-        video->refList1Size = 0;
-    }
-
-
-    if ((video->refList0Size == video->refList1Size) && (video->refList0Size > 1))
-    {
-        /* check if lists are identical, if yes swap first two elements of listX[1] */
-        /* last paragraph of subclause 8.2.4.2.4 */
-
-        for (i = 0; i < video->refList0Size; i++)
-        {
-            if (video->RefPicList0[i] != video->RefPicList1[i])
-            {
-                break;
-            }
-        }
-        if (i == video->refList0Size)
-        {
-            tmp_s = video->RefPicList1[0];
-            video->RefPicList1[0] = video->RefPicList1[1];
-            video->RefPicList1[1] = tmp_s;
-        }
-    }
-
-    /* set max size */
-    video->refList0Size = AVC_MIN(video->refList0Size, (int)video->sliceHdr->num_ref_idx_l0_active_minus1 + 1);
-    video->refList1Size = AVC_MIN(video->refList1Size, (int)video->sliceHdr->num_ref_idx_l1_active_minus1 + 1);
-
-    return ;
-}
-/* see subclause 8.2.4.3 */
-OSCL_EXPORT_REF AVCStatus ReOrderList(AVCCommonObj *video)
-{
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    AVCStatus status = AVC_SUCCESS;
-    int slice_type = video->slice_type;
-
-    if (slice_type != AVC_I_SLICE)
-    {
-        if (sliceHdr->ref_pic_list_reordering_flag_l0)
-        {
-            status = ReorderRefPicList(video, 0);
-            if (status != AVC_SUCCESS)
-                return status;
-        }
-        if (video->refList0Size == 0)
-        {
-            return AVC_FAIL;
-        }
-    }
-    return status;
-}
-
-AVCStatus ReorderRefPicList(AVCCommonObj *video, int isL1)
-{
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    AVCStatus status;
-
-    int *list_size;
-    int num_ref_idx_lX_active_minus1;
-    uint *remapping_of_pic_nums_idc;
-    int *abs_diff_pic_num_minus1;
-    int *long_term_pic_idx;
-    int i;
-    int maxPicNum, currPicNum, picNumLXNoWrap, picNumLXPred, picNumLX;
-    int refIdxLX = 0;
-    void* tmp;
-
-    if (!isL1) /* list 0 */
-    {
-        list_size = &(video->refList0Size);
-        num_ref_idx_lX_active_minus1 = sliceHdr->num_ref_idx_l0_active_minus1;
-        remapping_of_pic_nums_idc = sliceHdr->reordering_of_pic_nums_idc_l0;
-        tmp = (void*)sliceHdr->abs_diff_pic_num_minus1_l0;
-        abs_diff_pic_num_minus1 = (int*) tmp;
-        tmp = (void*)sliceHdr->long_term_pic_num_l0;
-        long_term_pic_idx = (int*) tmp;
-    }
-    else
-    {
-        list_size = &(video->refList1Size);
-        num_ref_idx_lX_active_minus1 = sliceHdr->num_ref_idx_l1_active_minus1;
-        remapping_of_pic_nums_idc = sliceHdr->reordering_of_pic_nums_idc_l1;
-        tmp = (void*) sliceHdr->abs_diff_pic_num_minus1_l1;
-        abs_diff_pic_num_minus1 = (int*) tmp;
-        tmp = (void*) sliceHdr->long_term_pic_num_l1;
-        long_term_pic_idx = (int*)tmp;
-    }
-
-    maxPicNum = video->MaxPicNum;
-    currPicNum = video->CurrPicNum;
-
-    picNumLXPred = currPicNum; /* initial value */
-
-    for (i = 0; remapping_of_pic_nums_idc[i] != 3; i++)
-    {
-        if ((remapping_of_pic_nums_idc[i] > 3) || (i >= MAX_REF_PIC_LIST_REORDERING))
-        {
-            return AVC_FAIL; /* out of range */
-        }
-        /* see subclause 8.2.4.3.1 */
-        if (remapping_of_pic_nums_idc[i] < 2)
-        {
-            if (remapping_of_pic_nums_idc[i] == 0)
-            {
-                if (picNumLXPred - (abs_diff_pic_num_minus1[i] + 1) < 0)
-                    picNumLXNoWrap = picNumLXPred - (abs_diff_pic_num_minus1[i] + 1) + maxPicNum;
-                else
-                    picNumLXNoWrap = picNumLXPred - (abs_diff_pic_num_minus1[i] + 1);
-            }
-            else /* (remapping_of_pic_nums_idc[i] == 1) */
-            {
-                if (picNumLXPred + (abs_diff_pic_num_minus1[i] + 1)  >=  maxPicNum)
-                    picNumLXNoWrap = picNumLXPred + (abs_diff_pic_num_minus1[i] + 1) - maxPicNum;
-                else
-                    picNumLXNoWrap = picNumLXPred + (abs_diff_pic_num_minus1[i] + 1);
-            }
-            picNumLXPred = picNumLXNoWrap; /* prediction for the next one */
-
-            if (picNumLXNoWrap > currPicNum)
-                picNumLX = picNumLXNoWrap - maxPicNum;
-            else
-                picNumLX = picNumLXNoWrap;
-
-            status = ReorderShortTerm(video, picNumLX, &refIdxLX, isL1);
-            if (status != AVC_SUCCESS)
-            {
-                return status;
-            }
-        }
-        else /* (remapping_of_pic_nums_idc[i] == 2), subclause 8.2.4.3.2 */
-        {
-            status = ReorderLongTerm(video, long_term_pic_idx[i], &refIdxLX, isL1);
-            if (status != AVC_SUCCESS)
-            {
-                return status;
-            }
-        }
-    }
-    /* that's a definition */
-    *list_size = num_ref_idx_lX_active_minus1 + 1;
-
-    return AVC_SUCCESS;
-}
-
-/* see subclause 8.2.4.3.1 */
-AVCStatus ReorderShortTerm(AVCCommonObj *video, int picNumLX, int *refIdxLX, int isL1)
-{
-    int cIdx, nIdx;
-    int num_ref_idx_lX_active_minus1;
-    AVCPictureData *picLX, **RefPicListX;
-
-    if (!isL1) /* list 0 */
-    {
-        RefPicListX = video->RefPicList0;
-        num_ref_idx_lX_active_minus1 = video->sliceHdr->num_ref_idx_l0_active_minus1;
-    }
-    else
-    {
-        RefPicListX = video->RefPicList1;
-        num_ref_idx_lX_active_minus1 = video->sliceHdr->num_ref_idx_l1_active_minus1;
-    }
-
-    picLX = GetShortTermPic(video, picNumLX);
-
-    if (picLX == NULL)
-    {
-        return AVC_FAIL;
-    }
-    /* Note RefPicListX has to access element number num_ref_idx_lX_active */
-    /* There could be access violation here. */
-    if (num_ref_idx_lX_active_minus1 + 1 >= MAX_REF_PIC_LIST)
-    {
-        return AVC_FAIL;
-    }
-
-    for (cIdx = num_ref_idx_lX_active_minus1 + 1; cIdx > *refIdxLX; cIdx--)
-    {
-        RefPicListX[ cIdx ] = RefPicListX[ cIdx - 1];
-    }
-
-    RefPicListX[(*refIdxLX)++ ] = picLX;
-
-    nIdx = *refIdxLX;
-
-    for (cIdx = *refIdxLX; cIdx <= num_ref_idx_lX_active_minus1 + 1; cIdx++)
-    {
-        if (RefPicListX[ cIdx ])
-        {
-            if ((RefPicListX[ cIdx ]->isLongTerm) || ((int)RefPicListX[ cIdx ]->PicNum != picNumLX))
-            {
-                RefPicListX[ nIdx++ ] = RefPicListX[ cIdx ];
-            }
-        }
-    }
-    return AVC_SUCCESS;
-}
-
-/* see subclause 8.2.4.3.2 */
-AVCStatus ReorderLongTerm(AVCCommonObj *video, int LongTermPicNum, int *refIdxLX, int isL1)
-{
-    AVCPictureData **RefPicListX;
-    int num_ref_idx_lX_active_minus1;
-    int cIdx, nIdx;
-    AVCPictureData *picLX;
-
-    if (!isL1) /* list 0 */
-    {
-        RefPicListX = video->RefPicList0;
-        num_ref_idx_lX_active_minus1 = video->sliceHdr->num_ref_idx_l0_active_minus1;
-    }
-    else
-    {
-        RefPicListX = video->RefPicList1;
-        num_ref_idx_lX_active_minus1 = video->sliceHdr->num_ref_idx_l1_active_minus1;
-    }
-
-    picLX = GetLongTermPic(video, LongTermPicNum);
-    if (picLX == NULL)
-    {
-        return AVC_FAIL;
-    }
-    /* Note RefPicListX has to access element number num_ref_idx_lX_active */
-    /* There could be access violation here. */
-    if (num_ref_idx_lX_active_minus1 + 1 >= MAX_REF_PIC_LIST)
-    {
-        return AVC_FAIL;
-    }
-    for (cIdx = num_ref_idx_lX_active_minus1 + 1; cIdx > *refIdxLX; cIdx--)
-        RefPicListX[ cIdx ] = RefPicListX[ cIdx - 1];
-
-    RefPicListX[(*refIdxLX)++ ] = picLX;
-
-    nIdx = *refIdxLX;
-
-    for (cIdx = *refIdxLX; cIdx <= num_ref_idx_lX_active_minus1 + 1; cIdx++)
-    {
-        if ((!RefPicListX[ cIdx ]->isLongTerm) || ((int)RefPicListX[ cIdx ]->LongTermPicNum != LongTermPicNum))
-        {
-            RefPicListX[ nIdx++ ] = RefPicListX[ cIdx ];
-        }
-    }
-    return AVC_SUCCESS;
-}
-
-
-AVCPictureData*  GetShortTermPic(AVCCommonObj *video, int picNum)
-{
-    int i;
-    AVCDecPicBuffer *dpb = video->decPicBuf;
-
-    for (i = 0; i < dpb->num_fs; i++)
-    {
-
-        if (dpb->fs[i]->IsReference == 3)
-        {
-            if ((dpb->fs[i]->frame.isLongTerm == FALSE) && (dpb->fs[i]->frame.PicNum == picNum))
-            {
-                return &(dpb->fs[i]->frame);
-            }
-        }
-
-    }
-
-    return NULL;
-}
-
-AVCPictureData*  GetLongTermPic(AVCCommonObj *video, int LongtermPicNum)
-{
-    AVCDecPicBuffer *dpb = video->decPicBuf;
-    int i;
-
-    for (i = 0; i < dpb->num_fs; i++)
-    {
-
-        if (dpb->fs[i]->IsReference == 3)
-        {
-            if ((dpb->fs[i]->frame.isLongTerm == TRUE) && (dpb->fs[i]->frame.LongTermPicNum == LongtermPicNum))
-            {
-                return &(dpb->fs[i]->frame);
-            }
-        }
-
-    }
-    return NULL;
-}
-
-int is_short_ref(AVCPictureData *s)
-{
-    return ((s->isReference) && !(s->isLongTerm));
-}
-
-int is_long_ref(AVCPictureData *s)
-{
-    return ((s->isReference) && (s->isLongTerm));
-}
-
-
-/* sort by PicNum, descending order */
-void SortPicByPicNum(AVCPictureData *data[], int num)
-{
-    int i, j;
-    AVCPictureData *temp;
-
-    for (i = 0; i < num - 1; i++)
-    {
-        for (j = i + 1; j < num; j++)
-        {
-            if (data[j]->PicNum > data[i]->PicNum)
-            {
-                temp = data[j];
-                data[j] = data[i];
-                data[i] = temp;
-            }
-        }
-    }
-
-    return ;
-}
-
-/* sort by PicNum, ascending order */
-void SortPicByPicNumLongTerm(AVCPictureData *data[], int num)
-{
-    int i, j;
-    AVCPictureData *temp;
-
-    for (i = 0; i < num - 1; i++)
-    {
-        for (j = i + 1; j < num; j++)
-        {
-            if (data[j]->LongTermPicNum < data[i]->LongTermPicNum)
-            {
-                temp = data[j];
-                data[j] = data[i];
-                data[i] = temp;
-            }
-        }
-    }
-
-    return ;
-}
-
-
-/* sort by FrameNumWrap, descending order */
-void SortFrameByFrameNumWrap(AVCFrameStore *data[], int num)
-{
-    int i, j;
-    AVCFrameStore *temp;
-
-    for (i = 0; i < num - 1; i++)
-    {
-        for (j = i + 1; j < num; j++)
-        {
-            if (data[j]->FrameNumWrap > data[i]->FrameNumWrap)
-            {
-                temp = data[j];
-                data[j] = data[i];
-                data[i] = temp;
-            }
-        }
-    }
-
-    return ;
-}
-
-/* sort frames by LongTermFrameIdx, ascending order */
-void SortFrameByLTFrameIdx(AVCFrameStore *data[], int num)
-{
-    int i, j;
-    AVCFrameStore *temp;
-
-    for (i = 0; i < num - 1; i++)
-    {
-        for (j = i + 1; j < num; j++)
-        {
-            if (data[j]->LongTermFrameIdx < data[i]->LongTermFrameIdx)
-            {
-                temp = data[j];
-                data[j] = data[i];
-                data[i] = temp;
-            }
-        }
-    }
-
-    return ;
-}
-
-/* sort PictureData by POC in descending order */
-void SortPicByPOC(AVCPictureData *data[], int num, int descending)
-{
-    int i, j;
-    AVCPictureData *temp;
-
-    if (descending)
-    {
-        for (i = 0; i < num - 1; i++)
-        {
-            for (j = i + 1; j < num; j++)
-            {
-                if (data[j]->PicOrderCnt > data[i]->PicOrderCnt)
-                {
-                    temp = data[j];
-                    data[j] = data[i];
-                    data[i] = temp;
-                }
-            }
-        }
-    }
-    else
-    {
-        for (i = 0; i < num - 1; i++)
-        {
-            for (j = i + 1; j < num; j++)
-            {
-                if (data[j]->PicOrderCnt < data[i]->PicOrderCnt)
-                {
-                    temp = data[j];
-                    data[j] = data[i];
-                    data[i] = temp;
-                }
-            }
-        }
-    }
-    return ;
-}
-
-/* sort PictureData by LongTermPicNum in ascending order */
-void SortPicByLTPicNum(AVCPictureData *data[], int num)
-{
-    int i, j;
-    AVCPictureData *temp;
-
-    for (i = 0; i < num - 1; i++)
-    {
-        for (j = i + 1; j < num; j++)
-        {
-            if (data[j]->LongTermPicNum < data[i]->LongTermPicNum)
-            {
-                temp = data[j];
-                data[j] = data[i];
-                data[i] = temp;
-            }
-        }
-    }
-
-    return ;
-}
-
-/* sort by PicOrderCnt, descending order */
-void SortFrameByPOC(AVCFrameStore *data[], int num, int descending)
-{
-    int i, j;
-    AVCFrameStore *temp;
-
-    if (descending)
-    {
-        for (i = 0; i < num - 1; i++)
-        {
-            for (j = i + 1; j < num; j++)
-            {
-                if (data[j]->PicOrderCnt > data[i]->PicOrderCnt)
-                {
-                    temp = data[j];
-                    data[j] = data[i];
-                    data[i] = temp;
-                }
-            }
-        }
-    }
-    else
-    {
-        for (i = 0; i < num - 1; i++)
-        {
-            for (j = i + 1; j < num; j++)
-            {
-                if (data[j]->PicOrderCnt < data[i]->PicOrderCnt)
-                {
-                    temp = data[j];
-                    data[j] = data[i];
-                    data[i] = temp;
-                }
-            }
-        }
-    }
-
-    return ;
-}
-
-
diff --git a/media/libstagefright/codecs/avc/enc/Android.mk b/media/libstagefright/codecs/avc/enc/Android.mk
deleted file mode 100644
index 8ff2f35..0000000
--- a/media/libstagefright/codecs/avc/enc/Android.mk
+++ /dev/null
@@ -1,110 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
-    src/avcenc_api.cpp \
-    src/bitstream_io.cpp \
-    src/block.cpp \
-    src/findhalfpel.cpp \
-    src/header.cpp \
-    src/init.cpp \
-    src/intra_est.cpp \
-    src/motion_comp.cpp \
-    src/motion_est.cpp \
-    src/rate_control.cpp \
-    src/residual.cpp \
-    src/sad.cpp \
-    src/sad_halfpel.cpp \
-    src/slice.cpp \
-    src/vlc_encode.cpp
-
-
-LOCAL_MODULE := libstagefright_avcenc
-
-LOCAL_C_INCLUDES := \
-    $(LOCAL_PATH)/src \
-    $(LOCAL_PATH)/../common/include \
-    $(TOP)/frameworks/av/media/libstagefright/include \
-    $(TOP)/frameworks/native/include/media/openmax
-
-LOCAL_CFLAGS := \
-    -DOSCL_IMPORT_REF= -D"OSCL_UNUSED_ARG(x)=(void)(x)" -DOSCL_EXPORT_REF=
-
-LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
-
-include $(BUILD_STATIC_LIBRARY)
-
-################################################################################
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
-        SoftAVCEncoder.cpp
-
-LOCAL_C_INCLUDES := \
-        frameworks/av/media/libstagefright/include \
-        frameworks/native/include/media/hardware \
-        frameworks/native/include/media/openmax \
-        $(LOCAL_PATH)/src \
-        $(LOCAL_PATH)/include \
-        $(LOCAL_PATH)/../common/include \
-        $(LOCAL_PATH)/../common
-
-LOCAL_CFLAGS := \
-    -DOSCL_IMPORT_REF= -D"OSCL_UNUSED_ARG(x)=(void)(x)" -DOSCL_EXPORT_REF=
-
-
-LOCAL_STATIC_LIBRARIES := \
-        libstagefright_avcenc
-
-LOCAL_SHARED_LIBRARIES := \
-        libstagefright \
-        libstagefright_avc_common \
-        libstagefright_enc_common \
-        libstagefright_foundation \
-        libstagefright_omx \
-        libutils \
-        liblog \
-        libui
-
-
-LOCAL_MODULE := libstagefright_soft_h264enc
-LOCAL_MODULE_TAGS := optional
-
-LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
-
-include $(BUILD_SHARED_LIBRARY)
-
-################################################################################
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
-        test/h264_enc_test.cpp
-
-LOCAL_C_INCLUDES := \
-        $(LOCAL_PATH)/src \
-        $(LOCAL_PATH)/include \
-        $(LOCAL_PATH)/../common/include \
-        $(LOCAL_PATH)/../common
-
-LOCAL_CFLAGS := \
-    -DOSCL_IMPORT_REF= -DOSCL_UNUSED_ARG= -DOSCL_EXPORT_REF=
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
-
-LOCAL_STATIC_LIBRARIES := \
-        libstagefright_avcenc
-
-LOCAL_SHARED_LIBRARIES := \
-        libstagefright_avc_common
-
-LOCAL_MODULE := libstagefright_h264enc_test
-
-LOCAL_MODULE_TAGS := tests
-
-include $(BUILD_EXECUTABLE)
diff --git a/media/libstagefright/codecs/avc/enc/MODULE_LICENSE_APACHE2 b/media/libstagefright/codecs/avc/enc/MODULE_LICENSE_APACHE2
deleted file mode 100644
index e69de29..0000000
--- a/media/libstagefright/codecs/avc/enc/MODULE_LICENSE_APACHE2
+++ /dev/null
diff --git a/media/libstagefright/codecs/avc/enc/NOTICE b/media/libstagefright/codecs/avc/enc/NOTICE
deleted file mode 100644
index c5b1efa..0000000
--- a/media/libstagefright/codecs/avc/enc/NOTICE
+++ /dev/null
@@ -1,190 +0,0 @@
-
-   Copyright (c) 2005-2008, The Android Open Source Project
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
-      (an example is provided in the Appendix below).
-
-      "Derivative Works" shall mean any work, whether in Source or Object
-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
-
-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
-      or by an individual or Legal Entity authorized to submit on behalf of
-      the copyright owner. For the purposes of this definition, "submitted"
-      means any form of electronic, verbal, or written communication sent
-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
-
-      "Contributor" shall mean Licensor and any individual or Legal Entity
-      on behalf of whom a Contribution has been received by Licensor and
-      subsequently incorporated within the Work.
-
-   2. Grant of Copyright License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      copyright license to reproduce, prepare Derivative Works of,
-      publicly display, publicly perform, sublicense, and distribute the
-      Work and such Derivative Works in Source or Object form.
-
-   3. Grant of Patent License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      (except as stated in this section) patent license to make, have made,
-      use, offer to sell, sell, import, and otherwise transfer the Work,
-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
-      Contribution(s) alone or by combination of their Contribution(s)
-      with the Work to which such Contribution(s) was submitted. If You
-      institute patent litigation against any entity (including a
-      cross-claim or counterclaim in a lawsuit) alleging that the Work
-      or a Contribution incorporated within the Work constitutes direct
-      or contributory patent infringement, then any patent licenses
-      granted to You under this License for that Work shall terminate
-      as of the date such litigation is filed.
-
-   4. Redistribution. You may reproduce and distribute copies of the
-      Work or Derivative Works thereof in any medium, with or without
-      modifications, and in Source or Object form, provided that You
-      meet the following conditions:
-
-      (a) You must give any other recipients of the Work or
-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
-          that You distribute, all copyright, patent, trademark, and
-          attribution notices from the Source form of the Work,
-          excluding those notices that do not pertain to any part of
-          the Derivative Works; and
-
-      (d) If the Work includes a "NOTICE" text file as part of its
-          distribution, then any Derivative Works that You distribute must
-          include a readable copy of the attribution notices contained
-          within such NOTICE file, excluding those notices that do not
-          pertain to any part of the Derivative Works, in at least one
-          of the following places: within a NOTICE text file distributed
-          as part of the Derivative Works; within the Source form or
-          documentation, if provided along with the Derivative Works; or,
-          within a display generated by the Derivative Works, if and
-          wherever such third-party notices normally appear. The contents
-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
-
-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
diff --git a/media/libstagefright/codecs/avc/enc/SoftAVCEncoder.cpp b/media/libstagefright/codecs/avc/enc/SoftAVCEncoder.cpp
deleted file mode 100644
index cce6d15..0000000
--- a/media/libstagefright/codecs/avc/enc/SoftAVCEncoder.cpp
+++ /dev/null
@@ -1,734 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "SoftAVCEncoder"
-#include <utils/Log.h>
-#include <utils/misc.h>
-
-#include "avcenc_api.h"
-#include "avcenc_int.h"
-#include "OMX_Video.h"
-
-#include <HardwareAPI.h>
-#include <MetadataBufferType.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/AUtils.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/MetaData.h>
-#include <media/stagefright/Utils.h>
-#include <ui/Rect.h>
-#include <ui/GraphicBufferMapper.h>
-
-#include "SoftAVCEncoder.h"
-
-#if LOG_NDEBUG
-#define UNUSED_UNLESS_VERBOSE(x) (void)(x)
-#else
-#define UNUSED_UNLESS_VERBOSE(x)
-#endif
-
-namespace android {
-
-template<class T>
-static void InitOMXParams(T *params) {
-    params->nSize = sizeof(T);
-    params->nVersion.s.nVersionMajor = 1;
-    params->nVersion.s.nVersionMinor = 0;
-    params->nVersion.s.nRevision = 0;
-    params->nVersion.s.nStep = 0;
-}
-
-static const CodecProfileLevel kProfileLevels[] = {
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel2  },
-};
-
-typedef struct LevelConversion {
-    OMX_U32 omxLevel;
-    AVCLevel avcLevel;
-    uint32_t maxMacroBlocks;
-} LevelConcersion;
-
-static LevelConversion ConversionTable[] = {
-    { OMX_VIDEO_AVCLevel1,  AVC_LEVEL1_B, 99 },
-    { OMX_VIDEO_AVCLevel1b, AVC_LEVEL1,   99 },
-    { OMX_VIDEO_AVCLevel11, AVC_LEVEL1_1, 396 },
-    { OMX_VIDEO_AVCLevel12, AVC_LEVEL1_2, 396 },
-    { OMX_VIDEO_AVCLevel13, AVC_LEVEL1_3, 396 },
-    { OMX_VIDEO_AVCLevel2,  AVC_LEVEL2,   396 },
-#if 0
-    // encoding speed is very poor if video resolution
-    // is higher than CIF or if level is higher than 2
-    { OMX_VIDEO_AVCLevel21, AVC_LEVEL2_1, 792 },
-    { OMX_VIDEO_AVCLevel22, AVC_LEVEL2_2, 1620 },
-    { OMX_VIDEO_AVCLevel3,  AVC_LEVEL3,   1620 },
-    { OMX_VIDEO_AVCLevel31, AVC_LEVEL3_1, 3600 },
-    { OMX_VIDEO_AVCLevel32, AVC_LEVEL3_2, 5120 },
-    { OMX_VIDEO_AVCLevel4,  AVC_LEVEL4,   8192 },
-    { OMX_VIDEO_AVCLevel41, AVC_LEVEL4_1, 8192 },
-    { OMX_VIDEO_AVCLevel42, AVC_LEVEL4_2, 8704 },
-    { OMX_VIDEO_AVCLevel5,  AVC_LEVEL5,   22080 },
-    { OMX_VIDEO_AVCLevel51, AVC_LEVEL5_1, 36864 },
-#endif
-};
-
-static status_t ConvertOmxAvcLevelToAvcSpecLevel(
-        OMX_U32 omxLevel, AVCLevel *avcLevel) {
-    for (size_t i = 0, n = sizeof(ConversionTable)/sizeof(ConversionTable[0]);
-        i < n; ++i) {
-        if (omxLevel == ConversionTable[i].omxLevel) {
-            *avcLevel = ConversionTable[i].avcLevel;
-            return OK;
-        }
-    }
-
-    ALOGE("ConvertOmxAvcLevelToAvcSpecLevel: %d level not supported",
-            (int32_t)omxLevel);
-
-    return BAD_VALUE;
-}
-
-static status_t ConvertAvcSpecLevelToOmxAvcLevel(
-    AVCLevel avcLevel, OMX_U32 *omxLevel) {
-    for (size_t i = 0, n = sizeof(ConversionTable)/sizeof(ConversionTable[0]);
-        i < n; ++i) {
-        if (avcLevel == ConversionTable[i].avcLevel) {
-            *omxLevel = ConversionTable[i].omxLevel;
-            return OK;
-        }
-    }
-
-    ALOGE("ConvertAvcSpecLevelToOmxAvcLevel: %d level not supported",
-            (int32_t) avcLevel);
-
-    return BAD_VALUE;
-}
-
-static void* MallocWrapper(
-        void * /* userData */, int32_t size, int32_t /* attrs */) {
-    void *ptr = malloc(size);
-    if (ptr)
-        memset(ptr, 0, size);
-    return ptr;
-}
-
-static void FreeWrapper(void * /* userData */, void* ptr) {
-    free(ptr);
-}
-
-static int32_t DpbAllocWrapper(void *userData,
-        unsigned int sizeInMbs, unsigned int numBuffers) {
-    SoftAVCEncoder *encoder = static_cast<SoftAVCEncoder *>(userData);
-    CHECK(encoder != NULL);
-    return encoder->allocOutputBuffers(sizeInMbs, numBuffers);
-}
-
-static int32_t BindFrameWrapper(
-        void *userData, int32_t index, uint8_t **yuv) {
-    SoftAVCEncoder *encoder = static_cast<SoftAVCEncoder *>(userData);
-    CHECK(encoder != NULL);
-    return encoder->bindOutputBuffer(index, yuv);
-}
-
-static void UnbindFrameWrapper(void *userData, int32_t index) {
-    SoftAVCEncoder *encoder = static_cast<SoftAVCEncoder *>(userData);
-    CHECK(encoder != NULL);
-    return encoder->unbindOutputBuffer(index);
-}
-
-SoftAVCEncoder::SoftAVCEncoder(
-            const char *name,
-            const OMX_CALLBACKTYPE *callbacks,
-            OMX_PTR appData,
-            OMX_COMPONENTTYPE **component)
-    : SoftVideoEncoderOMXComponent(
-            name, "video_encoder.avc", OMX_VIDEO_CodingAVC,
-            kProfileLevels, NELEM(kProfileLevels),
-            176 /* width */, 144 /* height */,
-            callbacks, appData, component),
-      mIDRFrameRefreshIntervalInSec(1),
-      mAVCEncProfile(AVC_BASELINE),
-      mAVCEncLevel(AVC_LEVEL2),
-      mNumInputFrames(-1),
-      mPrevTimestampUs(-1),
-      mStarted(false),
-      mSawInputEOS(false),
-      mSignalledError(false),
-      mHandle(new tagAVCHandle),
-      mEncParams(new tagAVCEncParam),
-      mInputFrameData(NULL),
-      mSliceGroup(NULL) {
-
-    const size_t kOutputBufferSize =
-        320 * ConversionTable[NELEM(ConversionTable) - 1].maxMacroBlocks;
-
-    initPorts(
-            kNumBuffers, kNumBuffers, kOutputBufferSize,
-            MEDIA_MIMETYPE_VIDEO_AVC, 2 /* minCompressionRatio */);
-
-    ALOGI("Construct SoftAVCEncoder");
-}
-
-SoftAVCEncoder::~SoftAVCEncoder() {
-    ALOGV("Destruct SoftAVCEncoder");
-    releaseEncoder();
-    List<BufferInfo *> &outQueue = getPortQueue(1);
-    List<BufferInfo *> &inQueue = getPortQueue(0);
-    CHECK(outQueue.empty());
-    CHECK(inQueue.empty());
-}
-
-OMX_ERRORTYPE SoftAVCEncoder::initEncParams() {
-    CHECK(mHandle != NULL);
-    memset(mHandle, 0, sizeof(tagAVCHandle));
-    mHandle->AVCObject = NULL;
-    mHandle->userData = this;
-    mHandle->CBAVC_DPBAlloc = DpbAllocWrapper;
-    mHandle->CBAVC_FrameBind = BindFrameWrapper;
-    mHandle->CBAVC_FrameUnbind = UnbindFrameWrapper;
-    mHandle->CBAVC_Malloc = MallocWrapper;
-    mHandle->CBAVC_Free = FreeWrapper;
-
-    CHECK(mEncParams != NULL);
-    memset(mEncParams, 0, sizeof(*mEncParams));
-    mEncParams->rate_control = AVC_ON;
-    mEncParams->initQP = 0;
-    mEncParams->init_CBP_removal_delay = 1600;
-
-    mEncParams->intramb_refresh = 0;
-    mEncParams->auto_scd = AVC_ON;
-    mEncParams->out_of_band_param_set = AVC_ON;
-    mEncParams->poc_type = 2;
-    mEncParams->log2_max_poc_lsb_minus_4 = 12;
-    mEncParams->delta_poc_zero_flag = 0;
-    mEncParams->offset_poc_non_ref = 0;
-    mEncParams->offset_top_bottom = 0;
-    mEncParams->num_ref_in_cycle = 0;
-    mEncParams->offset_poc_ref = NULL;
-
-    mEncParams->num_ref_frame = 1;
-    mEncParams->num_slice_group = 1;
-    mEncParams->fmo_type = 0;
-
-    mEncParams->db_filter = AVC_ON;
-    mEncParams->disable_db_idc = 0;
-
-    mEncParams->alpha_offset = 0;
-    mEncParams->beta_offset = 0;
-    mEncParams->constrained_intra_pred = AVC_OFF;
-
-    mEncParams->data_par = AVC_OFF;
-    mEncParams->fullsearch = AVC_OFF;
-    mEncParams->search_range = 16;
-    mEncParams->sub_pel = AVC_OFF;
-    mEncParams->submb_pred = AVC_OFF;
-    mEncParams->rdopt_mode = AVC_OFF;
-    mEncParams->bidir_pred = AVC_OFF;
-
-    mEncParams->use_overrun_buffer = AVC_OFF;
-
-    if (mColorFormat != OMX_COLOR_FormatYUV420Planar || mInputDataIsMeta) {
-        // Color conversion is needed.
-        free(mInputFrameData);
-        if (((uint64_t)mWidth * mHeight) > ((uint64_t)INT32_MAX / 3)) {
-            ALOGE("Buffer size is too big.");
-            return OMX_ErrorUndefined;
-        }
-        mInputFrameData =
-            (uint8_t *) malloc((mWidth * mHeight * 3 ) >> 1);
-        CHECK(mInputFrameData != NULL);
-    }
-
-    // PV's AVC encoder requires the video dimension of multiple
-    if (mWidth % 16 != 0 || mHeight % 16 != 0) {
-        ALOGE("Video frame size %dx%d must be a multiple of 16",
-            mWidth, mHeight);
-        return OMX_ErrorBadParameter;
-    }
-
-    mEncParams->width = mWidth;
-    mEncParams->height = mHeight;
-    mEncParams->bitrate = mBitrate;
-    mEncParams->frame_rate = (1000 * mFramerate) >> 16;  // In frames/ms!, mFramerate is in Q16
-    mEncParams->CPB_size = (uint32_t) (mBitrate >> 1);
-
-    int32_t nMacroBlocks = divUp(mWidth, 16) * divUp(mHeight, 16);
-    CHECK(mSliceGroup == NULL);
-    if ((size_t)nMacroBlocks > SIZE_MAX / sizeof(uint32_t)) {
-        ALOGE("requested memory size is too big.");
-        return OMX_ErrorUndefined;
-    }
-    mSliceGroup = (uint32_t *) malloc(sizeof(uint32_t) * nMacroBlocks);
-    CHECK(mSliceGroup != NULL);
-    for (int ii = 0, idx = 0; ii < nMacroBlocks; ++ii) {
-        mSliceGroup[ii] = idx++;
-        if (idx >= mEncParams->num_slice_group) {
-            idx = 0;
-        }
-    }
-    mEncParams->slice_group = mSliceGroup;
-
-    // Set IDR frame refresh interval
-    if (mIDRFrameRefreshIntervalInSec < 0) {
-        mEncParams->idr_period = -1;
-    } else if (mIDRFrameRefreshIntervalInSec == 0) {
-        mEncParams->idr_period = 1;  // All I frames
-    } else {
-        mEncParams->idr_period =
-            (mIDRFrameRefreshIntervalInSec * mFramerate) >> 16; // mFramerate is in Q16
-    }
-
-    // Set profile and level
-    mEncParams->profile = mAVCEncProfile;
-    mEncParams->level = mAVCEncLevel;
-
-    return OMX_ErrorNone;
-}
-
-OMX_ERRORTYPE SoftAVCEncoder::initEncoder() {
-    CHECK(!mStarted);
-
-    OMX_ERRORTYPE errType = OMX_ErrorNone;
-    if (OMX_ErrorNone != (errType = initEncParams())) {
-        ALOGE("Failed to initialized encoder params");
-        mSignalledError = true;
-        notify(OMX_EventError, OMX_ErrorUndefined, 0, 0);
-        return errType;
-    }
-
-    AVCEnc_Status err;
-    err = PVAVCEncInitialize(mHandle, mEncParams, NULL, NULL);
-    if (err != AVCENC_SUCCESS) {
-        ALOGE("Failed to initialize the encoder: %d", err);
-        mSignalledError = true;
-        notify(OMX_EventError, OMX_ErrorUndefined, 0, 0);
-        return OMX_ErrorUndefined;
-    }
-
-    mNumInputFrames = -2;  // 1st two buffers contain SPS and PPS
-    mSpsPpsHeaderReceived = false;
-    mReadyForNextFrame = true;
-    mIsIDRFrame = false;
-    mStarted = true;
-
-    return OMX_ErrorNone;
-}
-
-OMX_ERRORTYPE SoftAVCEncoder::releaseEncoder() {
-    if (!mStarted) {
-        return OMX_ErrorNone;
-    }
-
-    PVAVCCleanUpEncoder(mHandle);
-    releaseOutputBuffers();
-
-    free(mInputFrameData);
-    mInputFrameData = NULL;
-
-    free(mSliceGroup);
-    mSliceGroup = NULL;
-
-    delete mEncParams;
-    mEncParams = NULL;
-
-    delete mHandle;
-    mHandle = NULL;
-
-    mStarted = false;
-
-    return OMX_ErrorNone;
-}
-
-void SoftAVCEncoder::releaseOutputBuffers() {
-    for (size_t i = 0; i < mOutputBuffers.size(); ++i) {
-        MediaBuffer *buffer = mOutputBuffers.editItemAt(i);
-        buffer->setObserver(NULL);
-        buffer->release();
-    }
-    mOutputBuffers.clear();
-}
-
-OMX_ERRORTYPE SoftAVCEncoder::internalGetParameter(
-        OMX_INDEXTYPE index, OMX_PTR params) {
-    switch (index) {
-        case OMX_IndexParamVideoBitrate:
-        {
-            OMX_VIDEO_PARAM_BITRATETYPE *bitRate =
-                (OMX_VIDEO_PARAM_BITRATETYPE *) params;
-
-            if (!isValidOMXParam(bitRate)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            if (bitRate->nPortIndex != 1) {
-                return OMX_ErrorUndefined;
-            }
-
-            bitRate->eControlRate = OMX_Video_ControlRateVariable;
-            bitRate->nTargetBitrate = mBitrate;
-            return OMX_ErrorNone;
-        }
-
-        case OMX_IndexParamVideoAvc:
-        {
-            OMX_VIDEO_PARAM_AVCTYPE *avcParams =
-                (OMX_VIDEO_PARAM_AVCTYPE *)params;
-
-            if (!isValidOMXParam(avcParams)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            if (avcParams->nPortIndex != 1) {
-                return OMX_ErrorUndefined;
-            }
-
-            avcParams->eProfile = OMX_VIDEO_AVCProfileBaseline;
-            OMX_U32 omxLevel = AVC_LEVEL2;
-            if (OMX_ErrorNone !=
-                ConvertAvcSpecLevelToOmxAvcLevel(mAVCEncLevel, &omxLevel)) {
-                return OMX_ErrorUndefined;
-            }
-
-            avcParams->eLevel = (OMX_VIDEO_AVCLEVELTYPE) omxLevel;
-            avcParams->nRefFrames = 1;
-            avcParams->nBFrames = 0;
-            avcParams->bUseHadamard = OMX_TRUE;
-            avcParams->nAllowedPictureTypes =
-                    (OMX_VIDEO_PictureTypeI | OMX_VIDEO_PictureTypeP);
-            avcParams->nRefIdx10ActiveMinus1 = 0;
-            avcParams->nRefIdx11ActiveMinus1 = 0;
-            avcParams->bWeightedPPrediction = OMX_FALSE;
-            avcParams->bEntropyCodingCABAC = OMX_FALSE;
-            avcParams->bconstIpred = OMX_FALSE;
-            avcParams->bDirect8x8Inference = OMX_FALSE;
-            avcParams->bDirectSpatialTemporal = OMX_FALSE;
-            avcParams->nCabacInitIdc = 0;
-            return OMX_ErrorNone;
-        }
-
-        default:
-            return SoftVideoEncoderOMXComponent::internalGetParameter(index, params);
-    }
-}
-
-OMX_ERRORTYPE SoftAVCEncoder::internalSetParameter(
-        OMX_INDEXTYPE index, const OMX_PTR params) {
-    int32_t indexFull = index;
-
-    switch (indexFull) {
-        case OMX_IndexParamVideoBitrate:
-        {
-            OMX_VIDEO_PARAM_BITRATETYPE *bitRate =
-                (OMX_VIDEO_PARAM_BITRATETYPE *) params;
-
-            if (!isValidOMXParam(bitRate)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            if (bitRate->nPortIndex != 1 ||
-                bitRate->eControlRate != OMX_Video_ControlRateVariable) {
-                return OMX_ErrorUndefined;
-            }
-
-            mBitrate = bitRate->nTargetBitrate;
-            return OMX_ErrorNone;
-        }
-
-        case OMX_IndexParamVideoAvc:
-        {
-            OMX_VIDEO_PARAM_AVCTYPE *avcType =
-                (OMX_VIDEO_PARAM_AVCTYPE *)params;
-
-            if (!isValidOMXParam(avcType)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            if (avcType->nPortIndex != 1) {
-                return OMX_ErrorUndefined;
-            }
-
-            // PV's AVC encoder only supports baseline profile
-            if (avcType->eProfile != OMX_VIDEO_AVCProfileBaseline ||
-                avcType->nRefFrames != 1 ||
-                avcType->nBFrames != 0 ||
-                avcType->bUseHadamard != OMX_TRUE ||
-                (avcType->nAllowedPictureTypes & OMX_VIDEO_PictureTypeB) != 0 ||
-                avcType->nRefIdx10ActiveMinus1 != 0 ||
-                avcType->nRefIdx11ActiveMinus1 != 0 ||
-                avcType->bWeightedPPrediction != OMX_FALSE ||
-                avcType->bEntropyCodingCABAC != OMX_FALSE ||
-                avcType->bconstIpred != OMX_FALSE ||
-                avcType->bDirect8x8Inference != OMX_FALSE ||
-                avcType->bDirectSpatialTemporal != OMX_FALSE ||
-                avcType->nCabacInitIdc != 0) {
-                return OMX_ErrorUndefined;
-            }
-
-            if (OK != ConvertOmxAvcLevelToAvcSpecLevel(avcType->eLevel, &mAVCEncLevel)) {
-                return OMX_ErrorUndefined;
-            }
-
-            return OMX_ErrorNone;
-        }
-
-        default:
-            return SoftVideoEncoderOMXComponent::internalSetParameter(index, params);
-    }
-}
-
-void SoftAVCEncoder::onQueueFilled(OMX_U32 /* portIndex */) {
-    if (mSignalledError || mSawInputEOS) {
-        return;
-    }
-
-    if (!mStarted) {
-        if (OMX_ErrorNone != initEncoder()) {
-            return;
-        }
-    }
-
-    List<BufferInfo *> &inQueue = getPortQueue(0);
-    List<BufferInfo *> &outQueue = getPortQueue(1);
-
-    while (!mSawInputEOS && !inQueue.empty() && !outQueue.empty()) {
-        BufferInfo *inInfo = *inQueue.begin();
-        OMX_BUFFERHEADERTYPE *inHeader = inInfo->mHeader;
-        BufferInfo *outInfo = *outQueue.begin();
-        OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
-
-        outHeader->nTimeStamp = 0;
-        outHeader->nFlags = 0;
-        outHeader->nOffset = 0;
-        outHeader->nFilledLen = 0;
-        outHeader->nOffset = 0;
-
-        uint8_t *outPtr = (uint8_t *) outHeader->pBuffer;
-        uint32_t dataLength = outHeader->nAllocLen;
-
-        if (!mSpsPpsHeaderReceived && mNumInputFrames < 0) {
-            // 4 bytes are reserved for holding the start code 0x00000001
-            // of the sequence parameter set at the beginning.
-            outPtr += 4;
-            dataLength -= 4;
-        }
-
-        int32_t type;
-        AVCEnc_Status encoderStatus = AVCENC_SUCCESS;
-
-        // Combine SPS and PPS and place them in the very first output buffer
-        // SPS and PPS are separated by start code 0x00000001
-        // Assume that we have exactly one SPS and exactly one PPS.
-        while (!mSpsPpsHeaderReceived && mNumInputFrames <= 0) {
-            encoderStatus = PVAVCEncodeNAL(mHandle, outPtr, &dataLength, &type);
-            if (encoderStatus == AVCENC_WRONG_STATE) {
-                mSpsPpsHeaderReceived = true;
-                CHECK_EQ(0, mNumInputFrames);  // 1st video frame is 0
-                outHeader->nFlags = OMX_BUFFERFLAG_CODECCONFIG;
-                outQueue.erase(outQueue.begin());
-                outInfo->mOwnedByUs = false;
-                notifyFillBufferDone(outHeader);
-                return;
-            } else {
-                switch (type) {
-                    case AVC_NALTYPE_SPS:
-                        ++mNumInputFrames;
-                        memcpy((uint8_t *)outHeader->pBuffer, "\x00\x00\x00\x01", 4);
-                        outHeader->nFilledLen = 4 + dataLength;
-                        outPtr += (dataLength + 4);  // 4 bytes for next start code
-                        dataLength = outHeader->nAllocLen - outHeader->nFilledLen;
-                        break;
-                    default:
-                        CHECK_EQ(AVC_NALTYPE_PPS, type);
-                        ++mNumInputFrames;
-                        memcpy((uint8_t *) outHeader->pBuffer + outHeader->nFilledLen,
-                                "\x00\x00\x00\x01", 4);
-                        outHeader->nFilledLen += (dataLength + 4);
-                        outPtr += (dataLength + 4);
-                        break;
-                }
-            }
-        }
-
-        // Get next input video frame
-        if (mReadyForNextFrame) {
-            // Save the input buffer info so that it can be
-            // passed to an output buffer
-            InputBufferInfo info;
-            info.mTimeUs = inHeader->nTimeStamp;
-            info.mFlags = inHeader->nFlags;
-            mInputBufferInfoVec.push(info);
-            mPrevTimestampUs = inHeader->nTimeStamp;
-
-            if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
-                mSawInputEOS = true;
-            }
-
-            if (inHeader->nFilledLen > 0) {
-                AVCFrameIO videoInput;
-                memset(&videoInput, 0, sizeof(videoInput));
-                videoInput.height = align(mHeight, 16);
-                videoInput.pitch = align(mWidth, 16);
-                videoInput.coding_timestamp = (inHeader->nTimeStamp + 500) / 1000;  // in ms
-                const uint8_t *inputData = NULL;
-                if (mInputDataIsMeta) {
-                    inputData =
-                        extractGraphicBuffer(
-                                mInputFrameData, (mWidth * mHeight * 3) >> 1,
-                                inHeader->pBuffer + inHeader->nOffset, inHeader->nFilledLen,
-                                mWidth, mHeight);
-                    if (inputData == NULL) {
-                        ALOGE("Unable to extract gralloc buffer in metadata mode");
-                        mSignalledError = true;
-                        notify(OMX_EventError, OMX_ErrorUndefined, 0, 0);
-                        return;
-                    }
-                    // TODO: Verify/convert pixel format enum
-                } else {
-                    inputData = (const uint8_t *)inHeader->pBuffer + inHeader->nOffset;
-                    if (mColorFormat != OMX_COLOR_FormatYUV420Planar) {
-                        ConvertYUV420SemiPlanarToYUV420Planar(
-                            inputData, mInputFrameData, mWidth, mHeight);
-                        inputData = mInputFrameData;
-                    }
-                }
-
-                CHECK(inputData != NULL);
-                videoInput.YCbCr[0] = (uint8_t *)inputData;
-                videoInput.YCbCr[1] = videoInput.YCbCr[0] + videoInput.height * videoInput.pitch;
-                videoInput.YCbCr[2] = videoInput.YCbCr[1] +
-                    ((videoInput.height * videoInput.pitch) >> 2);
-                videoInput.disp_order = mNumInputFrames;
-
-                encoderStatus = PVAVCEncSetInput(mHandle, &videoInput);
-                if (encoderStatus == AVCENC_SUCCESS || encoderStatus == AVCENC_NEW_IDR) {
-                    mReadyForNextFrame = false;
-                    ++mNumInputFrames;
-                    if (encoderStatus == AVCENC_NEW_IDR) {
-                        mIsIDRFrame = 1;
-                    }
-                } else {
-                    if (encoderStatus < AVCENC_SUCCESS) {
-                        ALOGE("encoderStatus = %d at line %d", encoderStatus, __LINE__);
-                        mSignalledError = true;
-                        notify(OMX_EventError, OMX_ErrorUndefined, 0, 0);
-                        return;
-                    } else {
-                        ALOGV("encoderStatus = %d at line %d", encoderStatus, __LINE__);
-                        inQueue.erase(inQueue.begin());
-                        inInfo->mOwnedByUs = false;
-                        notifyEmptyBufferDone(inHeader);
-                        return;
-                    }
-                }
-            }
-        }
-
-        // Encode an input video frame
-        CHECK(encoderStatus == AVCENC_SUCCESS || encoderStatus == AVCENC_NEW_IDR);
-        dataLength = outHeader->nAllocLen;  // Reset the output buffer length
-        if (inHeader->nFilledLen > 0) {
-            if (outHeader->nAllocLen >= 4) {
-                memcpy(outPtr, "\x00\x00\x00\x01", 4);
-                outPtr += 4;
-                dataLength -= 4;
-            }
-            encoderStatus = PVAVCEncodeNAL(mHandle, outPtr, &dataLength, &type);
-            dataLength = outPtr + dataLength - outHeader->pBuffer;
-            if (encoderStatus == AVCENC_SUCCESS) {
-                CHECK(NULL == PVAVCEncGetOverrunBuffer(mHandle));
-            } else if (encoderStatus == AVCENC_PICTURE_READY) {
-                CHECK(NULL == PVAVCEncGetOverrunBuffer(mHandle));
-                if (mIsIDRFrame) {
-                    outHeader->nFlags |= OMX_BUFFERFLAG_SYNCFRAME;
-                    mIsIDRFrame = false;
-                }
-                mReadyForNextFrame = true;
-                AVCFrameIO recon;
-                if (PVAVCEncGetRecon(mHandle, &recon) == AVCENC_SUCCESS) {
-                    PVAVCEncReleaseRecon(mHandle, &recon);
-                }
-            } else {
-                dataLength = 0;
-                mReadyForNextFrame = true;
-            }
-
-            if (encoderStatus < AVCENC_SUCCESS) {
-                ALOGE("encoderStatus = %d at line %d", encoderStatus, __LINE__);
-                mSignalledError = true;
-                notify(OMX_EventError, OMX_ErrorUndefined, 0, 0);
-                return;
-            }
-        } else {
-            dataLength = 0;
-        }
-
-        inQueue.erase(inQueue.begin());
-        inInfo->mOwnedByUs = false;
-        notifyEmptyBufferDone(inHeader);
-
-        outQueue.erase(outQueue.begin());
-        CHECK(!mInputBufferInfoVec.empty());
-        InputBufferInfo *inputBufInfo = mInputBufferInfoVec.begin();
-        outHeader->nTimeStamp = inputBufInfo->mTimeUs;
-        outHeader->nFlags |= (inputBufInfo->mFlags | OMX_BUFFERFLAG_ENDOFFRAME);
-        if (mSawInputEOS) {
-            outHeader->nFlags |= OMX_BUFFERFLAG_EOS;
-        }
-        outHeader->nFilledLen = dataLength;
-        outInfo->mOwnedByUs = false;
-        notifyFillBufferDone(outHeader);
-        mInputBufferInfoVec.erase(mInputBufferInfoVec.begin());
-    }
-}
-
-int32_t SoftAVCEncoder::allocOutputBuffers(
-        unsigned int sizeInMbs, unsigned int numBuffers) {
-    CHECK(mOutputBuffers.isEmpty());
-    size_t frameSize = (sizeInMbs << 7) * 3;
-    for (unsigned int i = 0; i <  numBuffers; ++i) {
-        MediaBuffer *buffer = new MediaBuffer(frameSize);
-        buffer->setObserver(this);
-        mOutputBuffers.push(buffer);
-    }
-
-    return 1;
-}
-
-void SoftAVCEncoder::unbindOutputBuffer(int32_t index) {
-    CHECK(index >= 0);
-}
-
-int32_t SoftAVCEncoder::bindOutputBuffer(int32_t index, uint8_t **yuv) {
-    CHECK(index >= 0);
-    CHECK(index < (int32_t) mOutputBuffers.size());
-    *yuv = (uint8_t *) mOutputBuffers[index]->data();
-
-    return 1;
-}
-
-void SoftAVCEncoder::signalBufferReturned(MediaBuffer *buffer) {
-    UNUSED_UNLESS_VERBOSE(buffer);
-    ALOGV("signalBufferReturned: %p", buffer);
-}
-
-}  // namespace android
-
-android::SoftOMXComponent *createSoftOMXComponent(
-        const char *name, const OMX_CALLBACKTYPE *callbacks,
-        OMX_PTR appData, OMX_COMPONENTTYPE **component) {
-    return new android::SoftAVCEncoder(name, callbacks, appData, component);
-}
diff --git a/media/libstagefright/codecs/avc/enc/SoftAVCEncoder.h b/media/libstagefright/codecs/avc/enc/SoftAVCEncoder.h
deleted file mode 100644
index 81de109..0000000
--- a/media/libstagefright/codecs/avc/enc/SoftAVCEncoder.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SOFT_AVC_ENCODER_H_
-#define SOFT_AVC_ENCODER_H_
-
-#include <media/stagefright/MediaBuffer.h>
-#include <media/stagefright/foundation/ABase.h>
-#include <utils/Vector.h>
-
-#include "avcenc_api.h"
-#include "SoftVideoEncoderOMXComponent.h"
-
-namespace android {
-
-struct SoftAVCEncoder : public MediaBufferObserver,
-                        public SoftVideoEncoderOMXComponent {
-    SoftAVCEncoder(
-            const char *name,
-            const OMX_CALLBACKTYPE *callbacks,
-            OMX_PTR appData,
-            OMX_COMPONENTTYPE **component);
-
-    // Override SimpleSoftOMXComponent methods
-    virtual OMX_ERRORTYPE internalGetParameter(
-            OMX_INDEXTYPE index, OMX_PTR params);
-
-    virtual OMX_ERRORTYPE internalSetParameter(
-            OMX_INDEXTYPE index, const OMX_PTR params);
-
-    virtual void onQueueFilled(OMX_U32 portIndex);
-
-    // Implement MediaBufferObserver
-    virtual void signalBufferReturned(MediaBuffer *buffer);
-
-
-    // Callbacks required by PV's encoder
-    int32_t allocOutputBuffers(unsigned int sizeInMbs, unsigned int numBuffers);
-    void    unbindOutputBuffer(int32_t index);
-    int32_t bindOutputBuffer(int32_t index, uint8_t **yuv);
-
-protected:
-    virtual ~SoftAVCEncoder();
-
-private:
-    enum {
-        kNumBuffers = 2,
-    };
-
-    // OMX input buffer's timestamp and flags
-    typedef struct {
-        int64_t mTimeUs;
-        int32_t mFlags;
-    } InputBufferInfo;
-
-    int32_t  mIDRFrameRefreshIntervalInSec;
-    AVCProfile mAVCEncProfile;
-    AVCLevel   mAVCEncLevel;
-
-    int64_t  mNumInputFrames;
-    int64_t  mPrevTimestampUs;
-    bool     mStarted;
-    bool     mSpsPpsHeaderReceived;
-    bool     mReadyForNextFrame;
-    bool     mSawInputEOS;
-    bool     mSignalledError;
-    bool     mIsIDRFrame;
-
-    tagAVCHandle          *mHandle;
-    tagAVCEncParam        *mEncParams;
-    uint8_t               *mInputFrameData;
-    uint32_t              *mSliceGroup;
-    Vector<MediaBuffer *> mOutputBuffers;
-    Vector<InputBufferInfo> mInputBufferInfoVec;
-
-    OMX_ERRORTYPE initEncParams();
-    OMX_ERRORTYPE initEncoder();
-    OMX_ERRORTYPE releaseEncoder();
-    void releaseOutputBuffers();
-
-    DISALLOW_EVIL_CONSTRUCTORS(SoftAVCEncoder);
-};
-
-}  // namespace android
-
-#endif  // SOFT_AVC_ENCODER_H_
diff --git a/media/libstagefright/codecs/avc/enc/src/avcenc_api.cpp b/media/libstagefright/codecs/avc/enc/src/avcenc_api.cpp
deleted file mode 100644
index cf14e10..0000000
--- a/media/libstagefright/codecs/avc/enc/src/avcenc_api.cpp
+++ /dev/null
@@ -1,736 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_api.h"
-#include "avcenc_lib.h"
-
-/* ======================================================================== */
-/*  Function : PVAVCGetNALType()                                            */
-/*  Date     : 11/4/2003                                                    */
-/*  Purpose  : Sniff NAL type from the bitstream                            */
-/*  In/out   :                                                              */
-/*  Return   : AVCENC_SUCCESS if succeed, AVCENC_FAIL if fail.              */
-/*  Modified :                                                              */
-/* ======================================================================== */
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncGetNALType(unsigned char *bitstream, int size,
-        int *nal_type, int *nal_ref_idc)
-{
-    int forbidden_zero_bit;
-    if (size > 0)
-    {
-        forbidden_zero_bit = bitstream[0] >> 7;
-        if (forbidden_zero_bit != 0)
-            return AVCENC_FAIL;
-        *nal_ref_idc = (bitstream[0] & 0x60) >> 5;
-        *nal_type = bitstream[0] & 0x1F;
-        return AVCENC_SUCCESS;
-    }
-
-    return AVCENC_FAIL;
-}
-
-
-/* ======================================================================== */
-/*  Function : PVAVCEncInitialize()                                         */
-/*  Date     : 3/18/2004                                                    */
-/*  Purpose  : Initialize the encoder library, allocate memory and verify   */
-/*              the profile/level support/settings.                         */
-/*  In/out   : Encoding parameters.                                         */
-/*  Return   : AVCENC_SUCCESS for success.                                  */
-/*  Modified :                                                              */
-/* ======================================================================== */
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncInitialize(AVCHandle *avcHandle, AVCEncParams *encParam,
-        void* extSPS, void* extPPS)
-{
-    AVCEnc_Status status;
-    AVCEncObject *encvid;
-    AVCCommonObj *video;
-    uint32 *userData = (uint32*) avcHandle->userData;
-    int framesize;
-
-    if (avcHandle->AVCObject != NULL)
-    {
-        return AVCENC_ALREADY_INITIALIZED; /* It's already initialized, need to cleanup first */
-    }
-
-    /* not initialized */
-
-    /* allocate videoObject */
-    avcHandle->AVCObject = (void*)avcHandle->CBAVC_Malloc(userData, sizeof(AVCEncObject), DEFAULT_ATTR);
-    if (avcHandle->AVCObject == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    encvid = (AVCEncObject*) avcHandle->AVCObject;
-
-    encvid->enc_state = AVCEnc_Initializing;
-
-    encvid->avcHandle = avcHandle;
-
-    encvid->common = (AVCCommonObj*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCCommonObj), DEFAULT_ATTR);
-    if (encvid->common == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    video = encvid->common;
-
-    /* allocate bitstream structure */
-    encvid->bitstream = (AVCEncBitstream*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCEncBitstream), DEFAULT_ATTR);
-    if (encvid->bitstream == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-    encvid->bitstream->encvid = encvid; /* to point back for reallocation */
-
-    /* allocate sequence parameter set structure */
-    video->currSeqParams = (AVCSeqParamSet*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCSeqParamSet), DEFAULT_ATTR);
-    if (video->currSeqParams == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    /* allocate picture parameter set structure */
-    video->currPicParams = (AVCPicParamSet*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCPicParamSet), DEFAULT_ATTR);
-    if (video->currPicParams == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    /* allocate slice header structure */
-    video->sliceHdr = (AVCSliceHeader*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCSliceHeader), DEFAULT_ATTR);
-    if (video->sliceHdr == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    /* allocate encoded picture buffer structure*/
-    video->decPicBuf = (AVCDecPicBuffer*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCDecPicBuffer), DEFAULT_ATTR);
-    if (video->decPicBuf == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    /* allocate rate control structure */
-    encvid->rateCtrl = (AVCRateControl*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCRateControl), DEFAULT_ATTR);
-    if (encvid->rateCtrl == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    /* reset frame list, not really needed */
-    video->currPic = NULL;
-    video->currFS = NULL;
-    encvid->currInput = NULL;
-    video->prevRefPic = NULL;
-
-    /* now read encParams, and allocate dimension-dependent variables */
-    /* such as mblock */
-    status = SetEncodeParam(avcHandle, encParam, extSPS, extPPS); /* initialized variables to be used in SPS*/
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    if (encParam->use_overrun_buffer == AVC_ON)
-    {
-        /* allocate overrun buffer */
-        encvid->oBSize = encvid->rateCtrl->cpbSize;
-        if (encvid->oBSize > DEFAULT_OVERRUN_BUFFER_SIZE)
-        {
-            encvid->oBSize = DEFAULT_OVERRUN_BUFFER_SIZE;
-        }
-        encvid->overrunBuffer = (uint8*) avcHandle->CBAVC_Malloc(userData, encvid->oBSize, DEFAULT_ATTR);
-        if (encvid->overrunBuffer == NULL)
-        {
-            return AVCENC_MEMORY_FAIL;
-        }
-    }
-    else
-    {
-        encvid->oBSize = 0;
-        encvid->overrunBuffer = NULL;
-    }
-
-    /* allocate frame size dependent structures */
-    framesize = video->FrameHeightInMbs * video->PicWidthInMbs;
-
-    video->mblock = (AVCMacroblock*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCMacroblock) * framesize, DEFAULT_ATTR);
-    if (video->mblock == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    video->MbToSliceGroupMap = (int*) avcHandle->CBAVC_Malloc(userData, sizeof(uint) * video->PicSizeInMapUnits * 2, DEFAULT_ATTR);
-    if (video->MbToSliceGroupMap == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    encvid->mot16x16 = (AVCMV*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCMV) * framesize, DEFAULT_ATTR);
-    if (encvid->mot16x16 == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    encvid->intraSearch = (uint8*) avcHandle->CBAVC_Malloc(userData, sizeof(uint8) * framesize, DEFAULT_ATTR);
-    if (encvid->intraSearch == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    encvid->min_cost = (int*) avcHandle->CBAVC_Malloc(userData, sizeof(int) * framesize, DEFAULT_ATTR);
-    if (encvid->min_cost == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    /* initialize motion search related memory */
-    if (AVCENC_SUCCESS != InitMotionSearchModule(avcHandle))
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    if (AVCENC_SUCCESS != InitRateControlModule(avcHandle))
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    /* intialize function pointers */
-    encvid->functionPointer = (AVCEncFuncPtr*) avcHandle->CBAVC_Malloc(userData, sizeof(AVCEncFuncPtr), DEFAULT_ATTR);
-    if (encvid->functionPointer == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-    encvid->functionPointer->SAD_Macroblock = &AVCSAD_Macroblock_C;
-    encvid->functionPointer->SAD_MB_HalfPel[0] = NULL;
-    encvid->functionPointer->SAD_MB_HalfPel[1] = &AVCSAD_MB_HalfPel_Cxh;
-    encvid->functionPointer->SAD_MB_HalfPel[2] = &AVCSAD_MB_HalfPel_Cyh;
-    encvid->functionPointer->SAD_MB_HalfPel[3] = &AVCSAD_MB_HalfPel_Cxhyh;
-
-    /* initialize timing control */
-    encvid->modTimeRef = 0;     /* ALWAYS ASSUME THAT TIMESTAMP START FROM 0 !!!*/
-    video->prevFrameNum = 0;
-    encvid->prevCodedFrameNum = 0;
-    encvid->dispOrdPOCRef = 0;
-
-    if (encvid->outOfBandParamSet == TRUE)
-    {
-        encvid->enc_state = AVCEnc_Encoding_SPS;
-    }
-    else
-    {
-        encvid->enc_state = AVCEnc_Analyzing_Frame;
-    }
-
-    return AVCENC_SUCCESS;
-}
-
-/* ======================================================================== */
-/*  Function : PVAVCEncGetMaxOutputSize()                                   */
-/*  Date     : 11/29/2008                                                   */
-/*  Purpose  : Return max output buffer size that apps should allocate for  */
-/*              output buffer.                                              */
-/*  In/out   :                                                              */
-/*  Return   : AVCENC_SUCCESS for success.                                  */
-/*  Modified :   size                                                       */
-/* ======================================================================== */
-
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncGetMaxOutputBufferSize(AVCHandle *avcHandle, int* size)
-{
-    AVCEncObject *encvid = (AVCEncObject*)avcHandle->AVCObject;
-
-    if (encvid == NULL)
-    {
-        return AVCENC_UNINITIALIZED;
-    }
-
-    *size = encvid->rateCtrl->cpbSize;
-
-    return AVCENC_SUCCESS;
-}
-
-/* ======================================================================== */
-/*  Function : PVAVCEncSetInput()                                           */
-/*  Date     : 4/18/2004                                                    */
-/*  Purpose  : To feed an unencoded original frame to the encoder library.  */
-/*  In/out   :                                                              */
-/*  Return   : AVCENC_SUCCESS for success.                                  */
-/*  Modified :                                                              */
-/* ======================================================================== */
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncSetInput(AVCHandle *avcHandle, AVCFrameIO *input)
-{
-    AVCEncObject *encvid = (AVCEncObject*)avcHandle->AVCObject;
-    AVCCommonObj *video = encvid->common;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-
-    AVCEnc_Status status;
-    uint frameNum;
-
-    if (encvid == NULL)
-    {
-        return AVCENC_UNINITIALIZED;
-    }
-
-    if (encvid->enc_state == AVCEnc_WaitingForBuffer)
-    {
-        goto RECALL_INITFRAME;
-    }
-    else if (encvid->enc_state != AVCEnc_Analyzing_Frame)
-    {
-        return AVCENC_FAIL;
-    }
-
-    if (input->pitch > 0xFFFF)
-    {
-        return AVCENC_NOT_SUPPORTED; // we use 2-bytes for pitch
-    }
-
-    /***********************************/
-
-    /* Let's rate control decide whether to encode this frame or not */
-    /* Also set video->nal_unit_type, sliceHdr->slice_type, video->slice_type */
-    if (AVCENC_SUCCESS != RCDetermineFrameNum(encvid, rateCtrl, input->coding_timestamp, &frameNum))
-    {
-        return AVCENC_SKIPPED_PICTURE; /* not time to encode, thus skipping */
-    }
-
-    /* we may not need this line */
-    //nextFrmModTime = (uint32)((((frameNum+1)*1000)/rateCtrl->frame_rate) + modTimeRef); /* rec. time */
-    //encvid->nextModTime = nextFrmModTime - (encvid->frameInterval>>1) - 1; /* between current and next frame */
-
-    encvid->currInput = input;
-    encvid->currInput->coding_order = frameNum;
-
-RECALL_INITFRAME:
-    /* initialize and analyze the frame */
-    status = InitFrame(encvid);
-
-    if (status == AVCENC_SUCCESS)
-    {
-        encvid->enc_state = AVCEnc_Encoding_Frame;
-    }
-    else if (status == AVCENC_NEW_IDR)
-    {
-        if (encvid->outOfBandParamSet == TRUE)
-        {
-            encvid->enc_state = AVCEnc_Encoding_Frame;
-        }
-        else // assuming that in-band paramset keeps sending new SPS and PPS.
-        {
-            encvid->enc_state = AVCEnc_Encoding_SPS;
-            //video->currSeqParams->seq_parameter_set_id++;
-            //if(video->currSeqParams->seq_parameter_set_id > 31) // range check
-            {
-                video->currSeqParams->seq_parameter_set_id = 0;  // reset
-            }
-        }
-
-        video->sliceHdr->idr_pic_id++;
-        if (video->sliceHdr->idr_pic_id > 65535) // range check
-        {
-            video->sliceHdr->idr_pic_id = 0;  // reset
-        }
-    }
-    /* the following logics need to be revisited */
-    else if (status == AVCENC_PICTURE_READY) // no buffers returned back to the encoder
-    {
-        encvid->enc_state = AVCEnc_WaitingForBuffer; // Input accepted but can't continue
-        // need to free up some memory before proceeding with Encode
-    }
-
-    return status; // return status, including the AVCENC_FAIL case and all 3 above.
-}
-
-/* ======================================================================== */
-/*  Function : PVAVCEncodeNAL()                                             */
-/*  Date     : 4/29/2004                                                    */
-/*  Purpose  : To encode one NAL/slice.                                     */
-/*  In/out   :                                                              */
-/*  Return   : AVCENC_SUCCESS for success.                                  */
-/*  Modified :                                                              */
-/* ======================================================================== */
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncodeNAL(AVCHandle *avcHandle, unsigned char *buffer, unsigned int *buf_nal_size, int *nal_type)
-{
-    AVCEncObject *encvid = (AVCEncObject*)avcHandle->AVCObject;
-    AVCCommonObj *video = encvid->common;
-    AVCEncBitstream *bitstream = encvid->bitstream;
-    AVCEnc_Status status;
-
-    if (encvid == NULL)
-    {
-        return AVCENC_UNINITIALIZED;
-    }
-
-    switch (encvid->enc_state)
-    {
-        case AVCEnc_Initializing:
-            return AVCENC_UNINITIALIZED;
-        case AVCEnc_Encoding_SPS:
-            /* initialized the structure */
-            BitstreamEncInit(bitstream, buffer, *buf_nal_size, NULL, 0);
-            BitstreamWriteBits(bitstream, 8, (1 << 5) | AVC_NALTYPE_SPS);
-
-            /* encode SPS */
-            status = EncodeSPS(encvid, bitstream);
-            if (status != AVCENC_SUCCESS)
-            {
-                return status;
-            }
-
-            /* closing the NAL with trailing bits */
-            status = BitstreamTrailingBits(bitstream, buf_nal_size);
-            if (status == AVCENC_SUCCESS)
-            {
-                encvid->enc_state = AVCEnc_Encoding_PPS;
-                video->currPicParams->seq_parameter_set_id = video->currSeqParams->seq_parameter_set_id;
-                video->currPicParams->pic_parameter_set_id++;
-                *nal_type = AVC_NALTYPE_SPS;
-                *buf_nal_size = bitstream->write_pos;
-            }
-            break;
-        case AVCEnc_Encoding_PPS:
-            /* initialized the structure */
-            BitstreamEncInit(bitstream, buffer, *buf_nal_size, NULL, 0);
-            BitstreamWriteBits(bitstream, 8, (1 << 5) | AVC_NALTYPE_PPS);
-
-            /* encode PPS */
-            status = EncodePPS(encvid, bitstream);
-            if (status != AVCENC_SUCCESS)
-            {
-                return status;
-            }
-
-            /* closing the NAL with trailing bits */
-            status = BitstreamTrailingBits(bitstream, buf_nal_size);
-            if (status == AVCENC_SUCCESS)
-            {
-                if (encvid->outOfBandParamSet == TRUE) // already extract PPS, SPS
-                {
-                    encvid->enc_state = AVCEnc_Analyzing_Frame;
-                }
-                else    // SetInput has been called before SPS and PPS.
-                {
-                    encvid->enc_state = AVCEnc_Encoding_Frame;
-                }
-
-                *nal_type = AVC_NALTYPE_PPS;
-                *buf_nal_size = bitstream->write_pos;
-            }
-            break;
-
-        case AVCEnc_Encoding_Frame:
-            /* initialized the structure */
-            BitstreamEncInit(bitstream, buffer, *buf_nal_size, encvid->overrunBuffer, encvid->oBSize);
-            BitstreamWriteBits(bitstream, 8, (video->nal_ref_idc << 5) | (video->nal_unit_type));
-
-            /* Re-order the reference list according to the ref_pic_list_reordering() */
-            /* We don't have to reorder the list for the encoder here. This can only be done
-            after we encode this slice. We can run thru a second-pass to see if new ordering
-            would save more bits. Too much delay !! */
-            /* status = ReOrderList(video);*/
-            status = InitSlice(encvid);
-            if (status != AVCENC_SUCCESS)
-            {
-                return status;
-            }
-
-            /* when we have everything, we encode the slice header */
-            status = EncodeSliceHeader(encvid, bitstream);
-            if (status != AVCENC_SUCCESS)
-            {
-                return status;
-            }
-
-            status = AVCEncodeSlice(encvid);
-
-            video->slice_id++;
-
-            /* closing the NAL with trailing bits */
-            BitstreamTrailingBits(bitstream, buf_nal_size);
-
-            *buf_nal_size = bitstream->write_pos;
-
-            encvid->rateCtrl->numFrameBits += ((*buf_nal_size) << 3);
-
-            *nal_type = video->nal_unit_type;
-
-            if (status == AVCENC_PICTURE_READY)
-            {
-                status = RCUpdateFrame(encvid);
-                if (status == AVCENC_SKIPPED_PICTURE) /* skip current frame */
-                {
-                    DPBReleaseCurrentFrame(avcHandle, video);
-                    encvid->enc_state = AVCEnc_Analyzing_Frame;
-
-                    return status;
-                }
-
-                /* perform loop-filtering on the entire frame */
-                DeblockPicture(video);
-
-                /* update the original frame array */
-                encvid->prevCodedFrameNum = encvid->currInput->coding_order;
-
-                /* store the encoded picture in the DPB buffer */
-                StorePictureInDPB(avcHandle, video);
-
-                if (video->currPic->isReference)
-                {
-                    video->PrevRefFrameNum = video->sliceHdr->frame_num;
-                }
-
-                /* update POC related variables */
-                PostPOC(video);
-
-                encvid->enc_state = AVCEnc_Analyzing_Frame;
-                status = AVCENC_PICTURE_READY;
-
-            }
-            break;
-        default:
-            status = AVCENC_WRONG_STATE;
-    }
-
-    return status;
-}
-
-/* ======================================================================== */
-/*  Function : PVAVCEncGetOverrunBuffer()                                   */
-/*  Purpose  : To retrieve the overrun buffer. Check whether overrun buffer */
-/*              is used or not before returning                             */
-/*  In/out   :                                                              */
-/*  Return   : Pointer to the internal overrun buffer.                      */
-/*  Modified :                                                              */
-/* ======================================================================== */
-OSCL_EXPORT_REF uint8* PVAVCEncGetOverrunBuffer(AVCHandle* avcHandle)
-{
-    AVCEncObject *encvid = (AVCEncObject*)avcHandle->AVCObject;
-    AVCEncBitstream *bitstream = encvid->bitstream;
-
-    if (bitstream->overrunBuffer == bitstream->bitstreamBuffer) /* OB is used */
-    {
-        return encvid->overrunBuffer;
-    }
-    else
-    {
-        return NULL;
-    }
-}
-
-
-/* ======================================================================== */
-/*  Function : PVAVCEncGetRecon()                                           */
-/*  Date     : 4/29/2004                                                    */
-/*  Purpose  : To retrieve the most recently encoded frame.                 */
-/*              assume that user will make a copy if they want to hold on   */
-/*              to it. Otherwise, it is not guaranteed to be reserved.      */
-/*              Most applications prefer to see original frame rather than  */
-/*              reconstructed frame. So, we are staying aware from complex  */
-/*              buffering mechanism. If needed, can be added later.         */
-/*  In/out   :                                                              */
-/*  Return   : AVCENC_SUCCESS for success.                                  */
-/*  Modified :                                                              */
-/* ======================================================================== */
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncGetRecon(AVCHandle *avcHandle, AVCFrameIO *recon)
-{
-    AVCEncObject *encvid = (AVCEncObject*)avcHandle->AVCObject;
-    AVCCommonObj *video = encvid->common;
-    AVCFrameStore *currFS = video->currFS;
-
-    if (encvid == NULL)
-    {
-        return AVCENC_UNINITIALIZED;
-    }
-
-    recon->YCbCr[0] = currFS->frame.Sl;
-    recon->YCbCr[1] = currFS->frame.Scb;
-    recon->YCbCr[2] = currFS->frame.Scr;
-    recon->height = currFS->frame.height;
-    recon->pitch = currFS->frame.pitch;
-    recon->disp_order = currFS->PicOrderCnt;
-    recon->coding_order = currFS->FrameNum;
-    recon->id = (intptr_t) currFS->base_dpb; /* use the pointer as the id */
-
-    currFS->IsOutputted |= 1;
-
-    return AVCENC_SUCCESS;
-}
-
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncReleaseRecon(AVCHandle *avcHandle, AVCFrameIO *recon)
-{
-    OSCL_UNUSED_ARG(avcHandle);
-    OSCL_UNUSED_ARG(recon);
-
-    return AVCENC_SUCCESS; //for now
-}
-
-/* ======================================================================== */
-/*  Function : PVAVCCleanUpEncoder()                                        */
-/*  Date     : 4/18/2004                                                    */
-/*  Purpose  : To clean up memories allocated by PVAVCEncInitialize()       */
-/*  In/out   :                                                              */
-/*  Return   : AVCENC_SUCCESS for success.                                  */
-/*  Modified :                                                              */
-/* ======================================================================== */
-OSCL_EXPORT_REF void    PVAVCCleanUpEncoder(AVCHandle *avcHandle)
-{
-    AVCEncObject *encvid = (AVCEncObject*) avcHandle->AVCObject;
-    AVCCommonObj *video;
-    uint32 *userData = (uint32*) avcHandle->userData;
-
-    if (encvid != NULL)
-    {
-        CleanMotionSearchModule(avcHandle);
-
-        CleanupRateControlModule(avcHandle);
-
-        if (encvid->functionPointer != NULL)
-        {
-            avcHandle->CBAVC_Free(userData, encvid->functionPointer);
-        }
-
-        if (encvid->min_cost)
-        {
-            avcHandle->CBAVC_Free(userData, encvid->min_cost);
-        }
-
-        if (encvid->intraSearch)
-        {
-            avcHandle->CBAVC_Free(userData, encvid->intraSearch);
-        }
-
-        if (encvid->mot16x16)
-        {
-            avcHandle->CBAVC_Free(userData, encvid->mot16x16);
-        }
-
-        if (encvid->rateCtrl)
-        {
-            avcHandle->CBAVC_Free(userData, encvid->rateCtrl);
-        }
-
-        if (encvid->overrunBuffer)
-        {
-            avcHandle->CBAVC_Free(userData, encvid->overrunBuffer);
-        }
-
-        video = encvid->common;
-        if (video != NULL)
-        {
-            if (video->MbToSliceGroupMap)
-            {
-                avcHandle->CBAVC_Free(userData, video->MbToSliceGroupMap);
-            }
-            if (video->mblock != NULL)
-            {
-                avcHandle->CBAVC_Free(userData, video->mblock);
-            }
-            if (video->decPicBuf != NULL)
-            {
-                CleanUpDPB(avcHandle, video);
-                avcHandle->CBAVC_Free(userData, video->decPicBuf);
-            }
-            if (video->sliceHdr != NULL)
-            {
-                avcHandle->CBAVC_Free(userData, video->sliceHdr);
-            }
-            if (video->currPicParams != NULL)
-            {
-                if (video->currPicParams->slice_group_id)
-                {
-                    avcHandle->CBAVC_Free(userData, video->currPicParams->slice_group_id);
-                }
-
-                avcHandle->CBAVC_Free(userData, video->currPicParams);
-            }
-            if (video->currSeqParams != NULL)
-            {
-                avcHandle->CBAVC_Free(userData, video->currSeqParams);
-            }
-            if (encvid->bitstream != NULL)
-            {
-                avcHandle->CBAVC_Free(userData, encvid->bitstream);
-            }
-            if (video != NULL)
-            {
-                avcHandle->CBAVC_Free(userData, video);
-            }
-        }
-
-        avcHandle->CBAVC_Free(userData, encvid);
-
-        avcHandle->AVCObject = NULL;
-    }
-
-    return ;
-}
-
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncUpdateBitRate(AVCHandle *avcHandle, uint32 bitrate)
-{
-    OSCL_UNUSED_ARG(avcHandle);
-    OSCL_UNUSED_ARG(bitrate);
-
-    return AVCENC_FAIL;
-}
-
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncUpdateFrameRate(AVCHandle *avcHandle, uint32 num, uint32 denom)
-{
-    OSCL_UNUSED_ARG(avcHandle);
-    OSCL_UNUSED_ARG(num);
-    OSCL_UNUSED_ARG(denom);
-
-    return AVCENC_FAIL;
-}
-
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncUpdateIDRInterval(AVCHandle *avcHandle, int IDRInterval)
-{
-    OSCL_UNUSED_ARG(avcHandle);
-    OSCL_UNUSED_ARG(IDRInterval);
-
-    return AVCENC_FAIL;
-}
-
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncIDRRequest(AVCHandle *avcHandle)
-{
-    OSCL_UNUSED_ARG(avcHandle);
-
-    return AVCENC_FAIL;
-}
-
-OSCL_EXPORT_REF AVCEnc_Status PVAVCEncUpdateIMBRefresh(AVCHandle *avcHandle, int numMB)
-{
-    OSCL_UNUSED_ARG(avcHandle);
-    OSCL_UNUSED_ARG(numMB);
-
-    return AVCENC_FAIL;
-}
-
-void PVAVCEncGetFrameStats(AVCHandle *avcHandle, AVCEncFrameStats *avcStats)
-{
-    AVCEncObject *encvid = (AVCEncObject*) avcHandle->AVCObject;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-
-    avcStats->avgFrameQP = GetAvgFrameQP(rateCtrl);
-    avcStats->numIntraMBs = encvid->numIntraMB;
-
-    return ;
-}
-
-
-
diff --git a/media/libstagefright/codecs/avc/enc/src/avcenc_api.h b/media/libstagefright/codecs/avc/enc/src/avcenc_api.h
deleted file mode 100644
index 6841ec3..0000000
--- a/media/libstagefright/codecs/avc/enc/src/avcenc_api.h
+++ /dev/null
@@ -1,323 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-/**
-This file contains application function interfaces to the AVC encoder library
-and necessary type defitionitions and enumerations.
-@publishedAll
-*/
-
-#ifndef AVCENC_API_H_INCLUDED
-#define AVCENC_API_H_INCLUDED
-
-#ifndef AVCAPI_COMMON_H_INCLUDED
-#include "avcapi_common.h"
-#endif
-
-// For memset, etc
-#include <string.h>
-
-/**
- This enumeration is used for the status returned from the library interface.
-*/
-typedef enum
-{
-    /**
-    Fail information, need to add more error code for more specific info
-    */
-    AVCENC_TRAILINGONES_FAIL = -35,
-    AVCENC_SLICE_EMPTY = -34,
-    AVCENC_POC_FAIL = -33,
-    AVCENC_CONSECUTIVE_NONREF = -32,
-    AVCENC_CABAC_FAIL = -31,
-    AVCENC_PRED_WEIGHT_TAB_FAIL = -30,
-    AVCENC_DEC_REF_PIC_MARK_FAIL = -29,
-    AVCENC_SPS_FAIL = -28,
-    AVCENC_BITSTREAM_BUFFER_FULL    = -27,
-    AVCENC_BITSTREAM_INIT_FAIL = -26,
-    AVCENC_CHROMA_QP_FAIL = -25,
-    AVCENC_INIT_QS_FAIL = -24,
-    AVCENC_INIT_QP_FAIL = -23,
-    AVCENC_WEIGHTED_BIPRED_FAIL = -22,
-    AVCENC_INVALID_INTRA_PERIOD = -21,
-    AVCENC_INVALID_CHANGE_RATE = -20,
-    AVCENC_INVALID_BETA_OFFSET = -19,
-    AVCENC_INVALID_ALPHA_OFFSET = -18,
-    AVCENC_INVALID_DEBLOCK_IDC = -17,
-    AVCENC_INVALID_REDUNDANT_PIC = -16,
-    AVCENC_INVALID_FRAMERATE = -15,
-    AVCENC_INVALID_NUM_SLICEGROUP = -14,
-    AVCENC_INVALID_POC_LSB = -13,
-    AVCENC_INVALID_NUM_REF = -12,
-    AVCENC_INVALID_FMO_TYPE = -11,
-    AVCENC_ENCPARAM_MEM_FAIL = -10,
-    AVCENC_LEVEL_NOT_SUPPORTED = -9,
-    AVCENC_LEVEL_FAIL = -8,
-    AVCENC_PROFILE_NOT_SUPPORTED = -7,
-    AVCENC_TOOLS_NOT_SUPPORTED = -6,
-    AVCENC_WRONG_STATE = -5,
-    AVCENC_UNINITIALIZED = -4,
-    AVCENC_ALREADY_INITIALIZED = -3,
-    AVCENC_NOT_SUPPORTED = -2,
-    AVCENC_MEMORY_FAIL = AVC_MEMORY_FAIL,
-    AVCENC_FAIL = AVC_FAIL,
-    /**
-    Generic success value
-    */
-    AVCENC_SUCCESS = AVC_SUCCESS,
-    AVCENC_PICTURE_READY = 2,
-    AVCENC_NEW_IDR = 3, /* upon getting this, users have to call PVAVCEncodeSPS and PVAVCEncodePPS to get a new SPS and PPS*/
-    AVCENC_SKIPPED_PICTURE = 4 /* continuable error message */
-
-} AVCEnc_Status;
-
-#define MAX_NUM_SLICE_GROUP  8      /* maximum for all the profiles */
-
-/**
-This structure contains the encoding parameters.
-*/
-typedef struct tagAVCEncParam
-{
-    /* if profile/level is set to zero, encoder will choose the closest one for you */
-    AVCProfile profile; /* profile of the bitstream to be compliant with*/
-    AVCLevel   level;   /* level of the bitstream to be compliant with*/
-
-    int width;      /* width of an input frame in pixel */
-    int height;     /* height of an input frame in pixel */
-
-    int poc_type; /* picture order count mode, 0,1 or 2 */
-    /* for poc_type == 0 */
-    uint log2_max_poc_lsb_minus_4; /* specify maximum value of POC Lsb, range 0..12*/
-    /* for poc_type == 1 */
-    uint delta_poc_zero_flag; /* delta POC always zero */
-    int offset_poc_non_ref; /* offset for non-reference pic */
-    int offset_top_bottom; /* offset between top and bottom field */
-    uint num_ref_in_cycle; /* number of reference frame in one cycle */
-    int *offset_poc_ref; /* array of offset for ref pic, dimension [num_ref_in_cycle] */
-
-    int num_ref_frame;  /* number of reference frame used */
-    int num_slice_group;  /* number of slice group */
-    int fmo_type;   /* 0: interleave, 1: dispersed, 2: foreground with left-over
-                    3: box-out, 4:raster scan, 5:wipe, 6:explicit */
-    /* for fmo_type == 0 */
-    uint run_length_minus1[MAX_NUM_SLICE_GROUP];   /* array of size num_slice_group, in round robin fasion */
-    /* fmo_type == 2*/
-    uint top_left[MAX_NUM_SLICE_GROUP-1];           /* array of co-ordinates of each slice_group */
-    uint bottom_right[MAX_NUM_SLICE_GROUP-1];       /* except the last one which is the background. */
-    /* fmo_type == 3,4,5 */
-    AVCFlag change_dir_flag;  /* slice group change direction flag */
-    uint change_rate_minus1;
-    /* fmo_type == 6 */
-    uint *slice_group; /* array of size MBWidth*MBHeight */
-
-    AVCFlag db_filter;  /* enable deblocking loop filter */
-    int disable_db_idc;  /* 0: filter everywhere, 1: no filter, 2: no filter across slice boundary */
-    int alpha_offset;   /* alpha offset range -6,...,6 */
-    int beta_offset;    /* beta offset range -6,...,6 */
-
-    AVCFlag constrained_intra_pred; /* constrained intra prediction flag */
-
-    AVCFlag auto_scd;   /* scene change detection on or off */
-    int idr_period; /* idr frame refresh rate in number of target encoded frame (no concept of actual time).*/
-    int intramb_refresh;    /* minimum number of intra MB per frame */
-    AVCFlag data_par;   /* enable data partitioning */
-
-    AVCFlag fullsearch; /* enable full-pel full-search mode */
-    int search_range;   /* search range for motion vector in (-search_range,+search_range) pixels */
-    AVCFlag sub_pel;    /* enable sub pel prediction */
-    AVCFlag submb_pred; /* enable sub MB partition mode */
-    AVCFlag rdopt_mode; /* RD optimal mode selection */
-    AVCFlag bidir_pred; /* enable bi-directional for B-slice, this flag forces the encoder to encode
-                        any frame with POC less than the previously encoded frame as a B-frame.
-                        If it's off, then such frames will remain P-frame. */
-
-    AVCFlag rate_control; /* rate control enable, on: RC on, off: constant QP */
-    int initQP;     /* initial QP */
-    uint32 bitrate;    /* target encoding bit rate in bits/second */
-    uint32 CPB_size;  /* coded picture buffer in number of bits */
-    uint32 init_CBP_removal_delay; /* initial CBP removal delay in msec */
-
-    uint32 frame_rate;  /* frame rate in the unit of frames per 1000 second */
-    /* note, frame rate is only needed by the rate control, AVC is timestamp agnostic. */
-
-    AVCFlag out_of_band_param_set; /* flag to set whether param sets are to be retrieved up front or not */
-
-    AVCFlag use_overrun_buffer;  /* do not throw away the frame if output buffer is not big enough.
-                                    copy excess bits to the overrun buffer */
-} AVCEncParams;
-
-
-/**
-This structure contains current frame encoding statistics for debugging purpose.
-*/
-typedef struct tagAVCEncFrameStats
-{
-    int avgFrameQP;   /* average frame QP */
-    int numIntraMBs;  /* number of intra MBs */
-    int numFalseAlarm;
-    int numMisDetected;
-    int numDetected;
-
-} AVCEncFrameStats;
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-    /** THE FOLLOWINGS ARE APIS */
-    /**
-    This function initializes the encoder library. It verifies the validity of the
-    encoding parameters against the specified profile/level and the list of supported
-    tools by this library. It allocates necessary memories required to perform encoding.
-    For re-encoding application, if users want to setup encoder in a more precise way,
-    users can give the external SPS and PPS to the encoder to follow.
-    \param "avcHandle"  "Handle to the AVC encoder library object."
-    \param "encParam"   "Pointer to the encoding parameter structure."
-    \param "extSPS"     "External SPS used for re-encoding purpose. NULL if not present"
-    \param "extPPS"     "External PPS used for re-encoding purpose. NULL if not present"
-    \return "AVCENC_SUCCESS for success,
-             AVCENC_NOT_SUPPORTED for the use of unsupported tools,
-             AVCENC_MEMORY_FAIL for memory allocation failure,
-             AVCENC_FAIL for generic failure."
-    */
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncInitialize(AVCHandle *avcHandle, AVCEncParams *encParam, void* extSPS, void* extPPS);
-
-
-    /**
-    Since the output buffer size is not known prior to encoding a frame, users need to
-    allocate big enough buffer otherwise, that frame will be dropped. This function returns
-    the size of the output buffer to be allocated by the users that guarantees to hold one frame.
-    It follows the CPB spec for a particular level.  However, when the users set use_overrun_buffer
-    flag, this API is useless as excess output bits are saved in the overrun buffer waiting to be
-    copied out in small chunks, i.e. users can allocate any size of output buffer.
-    \param "avcHandle"  "Handle to the AVC encoder library object."
-    \param "size"   "Pointer to the size to be modified."
-    \return "AVCENC_SUCCESS for success, AVCENC_UNINITIALIZED when level is not known.
-    */
-
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncGetMaxOutputBufferSize(AVCHandle *avcHandle, int* size);
-
-    /**
-    Users call this function to provide an input structure to the encoder library which will keep
-    a list of input structures it receives in case the users call this function many time before
-    calling PVAVCEncodeSlice. The encoder library will encode them according to the frame_num order.
-    Users should not modify the content of a particular frame until this frame is encoded and
-    returned thru CBAVCEnc_ReturnInput() callback function.
-    \param "avcHandle"  "Handle to the AVC encoder library object."
-    \param "input"      "Pointer to the input structure."
-    \return "AVCENC_SUCCESS for success,
-            AVCENC_FAIL if the encoder is not in the right state to take a new input frame.
-            AVCENC_NEW_IDR for the detection or determination of a new IDR, with this status,
-            the returned NAL is an SPS NAL,
-            AVCENC_NO_PICTURE if the input frame coding timestamp is too early, users must
-            get next frame or adjust the coding timestamp."
-    */
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncSetInput(AVCHandle *avcHandle, AVCFrameIO *input);
-
-    /**
-    This function is called to encode a NAL unit which can be an SPS NAL, a PPS NAL or
-    a VCL (video coding layer) NAL which contains one slice of data. It could be a
-    fixed number of macroblocks, as specified in the encoder parameters set, or the
-    maximum number of macroblocks fitted into the given input argument "buffer". The
-    input frame is taken from the oldest unencoded input frame retrieved by users by
-    PVAVCEncGetInput API.
-    \param "avcHandle"  "Handle to the AVC encoder library object."
-    \param "buffer"     "Pointer to the output AVC bitstream buffer, the format will be EBSP,
-                         not RBSP."
-    \param "buf_nal_size"   "As input, the size of the buffer in bytes.
-                        This is the physical limitation of the buffer. As output, the size of the EBSP."
-    \param "nal_type"   "Pointer to the NAL type of the returned buffer."
-    \return "AVCENC_SUCCESS for success of encoding one slice,
-             AVCENC_PICTURE_READY for the completion of a frame encoding,
-             AVCENC_FAIL for failure (this should not occur, though)."
-    */
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncodeNAL(AVCHandle *avcHandle, uint8 *buffer, uint *buf_nal_size, int *nal_type);
-
-    /**
-    This function sniffs the nal_unit_type such that users can call corresponding APIs.
-    This function is identical to PVAVCDecGetNALType() in the decoder.
-    \param "bitstream"  "Pointer to the beginning of a NAL unit (start with forbidden_zero_bit, etc.)."
-    \param "size"       "size of the bitstream (NumBytesInNALunit + 1)."
-    \param "nal_unit_type" "Pointer to the return value of nal unit type."
-    \return "AVCENC_SUCCESS if success, AVCENC_FAIL otherwise."
-    */
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncGetNALType(uint8 *bitstream, int size, int *nal_type, int *nal_ref_idc);
-
-    /**
-    This function returns the pointer to internal overrun buffer. Users can call this to query
-    whether the overrun buffer has been used to encode the current NAL.
-    \param "avcHandle"  "Pointer to the handle."
-    \return "Pointer to overrun buffer if it is used, otherwise, NULL."
-    */
-    OSCL_IMPORT_REF uint8* PVAVCEncGetOverrunBuffer(AVCHandle* avcHandle);
-
-    /**
-    This function returns the reconstructed frame of the most recently encoded frame.
-    Note that this frame is not returned to the users yet. Users should only read the
-    content of this frame.
-    \param "avcHandle"  "Handle to the AVC encoder library object."
-    \param "output"     "Pointer to the input structure."
-    \return "AVCENC_SUCCESS for success, AVCENC_NO_PICTURE if no picture to be outputted."
-    */
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncGetRecon(AVCHandle *avcHandle, AVCFrameIO *recon);
-
-    /**
-    This function is used to return the recontructed frame back to the AVC encoder library
-    in order to be re-used for encoding operation. If users want the content of it to remain
-    unchanged for a long time, they should make a copy of it and release the memory back to
-    the encoder. The encoder relies on the id element in the AVCFrameIO structure,
-    thus users should not change the id value.
-    \param "avcHandle"  "Handle to the AVC decoder library object."
-    \param "output"      "Pointer to the AVCFrameIO structure."
-    \return "AVCENC_SUCCESS for success, AVCENC_FAIL for fail for id not found."
-    */
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncReleaseRecon(AVCHandle *avcHandle, AVCFrameIO *recon);
-
-    /**
-    This function performs clean up operation including memory deallocation.
-    The encoder will also clear the list of input structures it has not released.
-    This implies that users must keep track of the number of input structure they have allocated
-    and free them accordingly.
-    \param "avcHandle"  "Handle to the AVC encoder library object."
-    */
-    OSCL_IMPORT_REF void    PVAVCCleanUpEncoder(AVCHandle *avcHandle);
-
-    /**
-    This function extracts statistics of the current frame. If the encoder has not finished
-    with the current frame, the result is not accurate.
-    \param "avcHandle"  "Handle to the AVC encoder library object."
-    \param "avcStats"   "Pointer to AVCEncFrameStats structure."
-    \return "void."
-    */
-    void PVAVCEncGetFrameStats(AVCHandle *avcHandle, AVCEncFrameStats *avcStats);
-
-    /**
-    These functions are used for the modification of encoding parameters.
-    To be polished.
-    */
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncUpdateBitRate(AVCHandle *avcHandle, uint32 bitrate);
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncUpdateFrameRate(AVCHandle *avcHandle, uint32 num, uint32 denom);
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncUpdateIDRInterval(AVCHandle *avcHandle, int IDRInterval);
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncIDRRequest(AVCHandle *avcHandle);
-    OSCL_IMPORT_REF AVCEnc_Status PVAVCEncUpdateIMBRefresh(AVCHandle *avcHandle, int numMB);
-
-
-#ifdef __cplusplus
-}
-#endif
-#endif  /* _AVCENC_API_H_ */
-
diff --git a/media/libstagefright/codecs/avc/enc/src/avcenc_int.h b/media/libstagefright/codecs/avc/enc/src/avcenc_int.h
deleted file mode 100644
index 3fe08a1..0000000
--- a/media/libstagefright/codecs/avc/enc/src/avcenc_int.h
+++ /dev/null
@@ -1,471 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-/**
-This file contains application function interfaces to the AVC encoder library
-and necessary type defitionitions and enumerations.
-@publishedAll
-*/
-
-#ifndef AVCENC_INT_H_INCLUDED
-#define AVCENC_INT_H_INCLUDED
-
-#ifndef AVCINT_COMMON_H_INCLUDED
-#include "avcint_common.h"
-#endif
-#ifndef AVCENC_API_H_INCLUDED
-#include "avcenc_api.h"
-#endif
-
-typedef float OsclFloat;
-
-/* Definition for the structures below */
-#define DEFAULT_ATTR    0 /* default memory attribute */
-#define MAX_INPUT_FRAME 30 /* some arbitrary number, it can be much higher than this. */
-#define MAX_REF_FRAME  16 /* max size of the RefPicList0 and RefPicList1 */
-#define MAX_REF_PIC_LIST 33
-
-#define MIN_QP          0
-#define MAX_QP          51
-#define SHIFT_QP        12
-#define  LAMBDA_ACCURACY_BITS         16
-#define  LAMBDA_FACTOR(lambda)        ((int)((double)(1<<LAMBDA_ACCURACY_BITS)*lambda+0.5))
-
-
-#define DISABLE_THRESHOLDING  0
-// for better R-D performance
-#define _LUMA_COEFF_COST_       4 //!< threshold for luma coeffs
-#define _CHROMA_COEFF_COST_     4 //!< threshold for chroma coeffs, used to be 7
-#define _LUMA_MB_COEFF_COST_    5 //!< threshold for luma coeffs of inter Macroblocks
-#define _LUMA_8x8_COEFF_COST_   5 //!< threshold for luma coeffs of 8x8 Inter Partition
-#define MAX_VALUE       999999   //!< used for start value for some variables
-
-#define  WEIGHTED_COST(factor,bits)   (((factor)*(bits))>>LAMBDA_ACCURACY_BITS)
-#define  MV_COST(f,s,cx,cy,px,py)     (WEIGHTED_COST(f,mvbits[((cx)<<(s))-px]+mvbits[((cy)<<(s))-py]))
-#define  MV_COST_S(f,cx,cy,px,py)     (WEIGHTED_COST(f,mvbits[cx-px]+mvbits[cy-py]))
-
-/* for sub-pel search and interpolation */
-#define SUBPEL_PRED_BLK_SIZE 576 // 24x24
-#define REF_CENTER 75
-#define V2Q_H0Q 1
-#define V0Q_H2Q 2
-#define V2Q_H2Q 3
-
-/*
-#define V3Q_H0Q 1
-#define V3Q_H1Q 2
-#define V0Q_H1Q 3
-#define V1Q_H1Q 4
-#define V1Q_H0Q 5
-#define V1Q_H3Q 6
-#define V0Q_H3Q 7
-#define V3Q_H3Q 8
-#define V2Q_H3Q 9
-#define V2Q_H0Q 10
-#define V2Q_H1Q 11
-#define V2Q_H2Q 12
-#define V3Q_H2Q 13
-#define V0Q_H2Q 14
-#define V1Q_H2Q 15
-*/
-
-
-#define DEFAULT_OVERRUN_BUFFER_SIZE 1000
-
-// associated with the above cost model
-const uint8 COEFF_COST[2][16] =
-{
-    {3, 2, 2, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9}
-};
-
-
-
-//! convert from H.263 QP to H.264 quant given by: quant=pow(2,QP/6)
-const int QP2QUANT[40] =
-{
-    1, 1, 1, 1, 2, 2, 2, 2,
-    3, 3, 3, 4, 4, 4, 5, 6,
-    6, 7, 8, 9, 10, 11, 13, 14,
-    16, 18, 20, 23, 25, 29, 32, 36,
-    40, 45, 51, 57, 64, 72, 81, 91
-};
-
-
-/**
-This enumeration keeps track of the internal status of the encoder whether it is doing
-something. The encoding flow follows the order in which these states are.
-@publishedAll
-*/
-typedef enum
-{
-    AVCEnc_Initializing = 0,
-    AVCEnc_Encoding_SPS,
-    AVCEnc_Encoding_PPS,
-    AVCEnc_Analyzing_Frame,
-    AVCEnc_WaitingForBuffer,  // pending state
-    AVCEnc_Encoding_Frame,
-} AVCEnc_State ;
-
-/**
-Bitstream structure contains bitstream related parameters such as the pointer
-to the buffer, the current byte position and bit position. The content of the
-bitstreamBuffer will be in EBSP format as the emulation prevention codes are
-automatically inserted as the RBSP is recorded.
-@publishedAll
-*/
-typedef struct tagEncBitstream
-{
-    uint8 *bitstreamBuffer; /* pointer to buffer memory   */
-    int buf_size;       /* size of the buffer memory */
-    int write_pos;      /* next position to write to bitstreamBuffer  */
-    int count_zeros;   /* count number of consecutive zero */
-    uint current_word;  /* byte-swapped (MSB left) current word to write to buffer */
-    int bit_left;      /* number of bit left in current_word */
-    uint8   *overrunBuffer;  /* extra output buffer to prevent current skip due to output buffer overrun*/
-    int     oBSize;     /* size of allocated overrun buffer */
-    void   *encvid; /* pointer to the main object */
-
-} AVCEncBitstream;
-
-/**
-This structure is used for rate control purpose and other performance related control
-variables such as, RD cost, statistics, motion search stuffs, etc.
-should be in this structure.
-@publishedAll
-*/
-
-
-typedef struct tagRDInfo
-{
-    int QP;
-    int actual_bits;
-    OsclFloat mad;
-    OsclFloat R_D;
-} RDInfo;
-
-typedef struct tagMultiPass
-{
-    /* multipass rate control data */
-    int target_bits;    /* target bits for current frame, = rc->T */
-    int actual_bits;    /* actual bits for current frame obtained after encoding, = rc->Rc*/
-    int QP;             /* quantization level for current frame, = rc->Qc*/
-    int prev_QP;        /* quantization level for previous frame */
-    int prev_prev_QP;   /* quantization level for previous frame before last*/
-    OsclFloat mad;          /* mad for current frame, = video->avgMAD*/
-    int bitrate;        /* bitrate for current frame */
-    OsclFloat framerate;    /* framerate for current frame*/
-
-    int nRe_Quantized;  /* control variable for multipass encoding, */
-    /* 0 : first pass */
-    /* 1 : intermediate pass(quantization and VLC loop only) */
-    /* 2 : final pass(de-quantization, idct, etc) */
-    /* 3 : macroblock level rate control */
-
-    int encoded_frames;     /* counter for all encoded frames */
-    int re_encoded_frames;  /* counter for all multipass encoded frames*/
-    int re_encoded_times;   /* counter for all times of multipass frame encoding */
-
-    /* Multiple frame prediction*/
-    RDInfo **pRDSamples;        /* pRDSamples[30][32], 30->30fps, 32 -> 5 bit quantizer, 32 candidates*/
-    int framePos;               /* specific position in previous multiple frames*/
-    int frameRange;             /* number of overall previous multiple frames */
-    int samplesPerFrame[30];    /* number of samples per frame, 30->30fps */
-
-    /* Bit allocation for scene change frames and high motion frames */
-    OsclFloat sum_mad;
-    int counter_BTsrc;  /* BT = Bit Transfer, bit transfer from low motion frames or less complicatedly compressed frames */
-    int counter_BTdst;  /* BT = Bit Transfer, bit transfer to scene change frames or high motion frames or more complicatedly compressed frames */
-    OsclFloat sum_QP;
-    int diff_counter;   /* diff_counter = -diff_counter_BTdst, or diff_counter_BTsrc */
-
-    /* For target bitrate or framerate update */
-    OsclFloat target_bits_per_frame;        /* = C = bitrate/framerate */
-    OsclFloat target_bits_per_frame_prev;   /* previous C */
-    OsclFloat aver_mad;                     /* so-far average mad could replace sum_mad */
-    OsclFloat aver_mad_prev;                /* previous average mad */
-    int   overlapped_win_size;          /* transition period of time */
-    int   encoded_frames_prev;          /* previous encoded_frames */
-} MultiPass;
-
-
-typedef struct tagdataPointArray
-{
-    int Qp;
-    int Rp;
-    OsclFloat Mp;   /* for MB-based RC */
-    struct tagdataPointArray *next;
-    struct tagdataPointArray *prev;
-} dataPointArray;
-
-typedef struct tagAVCRateControl
-{
-
-    /* these parameters are initialized by the users AVCEncParams */
-    /* bitrate-robustness tradeoff */
-    uint scdEnable; /* enable scene change detection */
-    int idrPeriod;  /* IDR period in number of frames */
-    int intraMBRate;   /* intra MB refresh rate per frame */
-    uint dpEnable;  /* enable data partitioning */
-
-    /* quality-complexity tradeoff */
-    uint subPelEnable;  /* enable quarter pel search */
-    int mvRange;    /* motion vector search range in +/- pixel */
-    uint subMBEnable;  /* enable sub MB prediction mode (4x4, 4x8, 8x4) */
-    uint rdOptEnable;  /* enable RD-opt mode selection */
-    uint twoPass; /* flag for 2 pass encoding ( for future )*/
-    uint bidirPred; /* bi-directional prediction for B-frame. */
-
-    uint rcEnable;  /* enable rate control, '1' on, '0' const QP */
-    int initQP; /* initial QP */
-
-    /* note the following 3 params are for HRD, these triplets can be a series
-    of triplets as the generalized HRD allows. SEI message must be generated in this case. */
-    /* We no longer have to differentiate between CBR and VBR. The users to the
-    AVC encoder lib will do the mapping from CBR/VBR to these parameters. */
-    int32 bitRate;  /* target bit rate for the overall clip in bits/second*/
-    int32 cpbSize;  /* coded picture buffer size in bytes */
-    int32 initDelayOffset; /* initial CBP removal delay in bits */
-
-    OsclFloat frame_rate; /* frame rate */
-    int srcInterval; /* source frame rate in msec */
-    int basicUnit;  /* number of macroblocks per BU */
-
-    /* Then internal parameters for the operation */
-    uint first_frame; /* a flag for the first frame */
-    int lambda_mf; /* for example */
-    int totalSAD;    /* SAD of current frame */
-
-    /*******************************************/
-    /* this part comes from MPEG4 rate control */
-    int alpha;  /* weight for I frame */
-    int Rs;     /*bit rate for the sequence (or segment) e.g., 24000 bits/sec */
-    int Rc;     /*bits used for the current frame. It is the bit count obtained after encoding. */
-    int Rp;     /*bits to be removed from the buffer per picture. */
-    /*? is this the average one, or just the bits coded for the previous frame */
-    int Rps;    /*bit to be removed from buffer per src frame */
-    OsclFloat Ts;   /*number of seconds for the sequence  (or segment). e.g., 10 sec */
-    OsclFloat Ep;
-    OsclFloat Ec;   /*mean absolute difference for the current frame after motion compensation.*/
-    /*If the macroblock is intra coded, the original spatial pixel values are summed.*/
-    int Qc;     /*quantization level used for the current frame. */
-    int Nr;     /*number of P frames remaining for encoding.*/
-    int Rr; /*number of bits remaining for encoding this sequence (or segment).*/
-    int Rr_Old;
-    int T;      /*target bit to be used for the current frame.*/
-    int S;      /*number of bits used for encoding the previous frame.*/
-    int Hc; /*header and motion vector bits used in the current frame. It includes all the  information except to the residual information.*/
-    int Hp; /*header and motion vector bits used in the previous frame. It includes all the     information except to the residual information.*/
-    int Ql; /*quantization level used in the previous frame */
-    int Bs; /*buffer size e.g., R/2 */
-    int B;      /*current buffer level e.g., R/4 - start from the middle of the buffer */
-    OsclFloat X1;
-    OsclFloat X2;
-    OsclFloat X11;
-    OsclFloat M;            /*safe margin for the buffer */
-    OsclFloat smTick;    /*ratio of src versus enc frame rate */
-    double remnant;  /*remainder frame of src/enc frame for fine frame skipping */
-    int timeIncRes; /* vol->timeIncrementResolution */
-
-    dataPointArray   *end; /*quantization levels for the past (20) frames */
-
-    int     frameNumber; /* ranging from 0 to 20 nodes*/
-    int     w;
-    int     Nr_Original;
-    int     Nr_Old, Nr_Old2;
-    int     skip_next_frame;
-    int     Qdep;       /* smooth Q adjustment */
-    int     VBR_Enabled;
-
-    int totalFrameNumber; /* total coded frames, for debugging!!*/
-
-    char    oFirstTime;
-
-    int numFrameBits; /* keep track of number of bits of the current frame */
-    int NumberofHeaderBits;
-    int NumberofTextureBits;
-    int numMBHeaderBits;
-    int numMBTextureBits;
-    double *MADofMB;
-    int32 bitsPerFrame;
-
-    /* BX rate control, something like TMN8 rate control*/
-
-    MultiPass *pMP;
-
-    int     TMN_W;
-    int     TMN_TH;
-    int     VBV_fullness;
-    int     max_BitVariance_num; /* the number of the maximum bit variance within the given buffer with the unit of 10% of bitrate/framerate*/
-    int     encoded_frames; /* counter for all encoded frames */
-    int     low_bound;              /* bound for underflow detection, usually low_bound=-Bs/2, but could be changed in H.263 mode */
-    int     VBV_fullness_offset;    /* offset of VBV_fullness, usually is zero, but can be changed in H.263 mode*/
-    /* End BX */
-
-} AVCRateControl;
-
-
-/**
-This structure is for the motion vector information. */
-typedef struct tagMV
-{
-    int x;
-    int y;
-    uint sad;
-} AVCMV;
-
-/**
-This structure contains function pointers for different platform dependent implementation of
-functions. */
-typedef struct tagAVCEncFuncPtr
-{
-
-    int (*SAD_MB_HalfPel[4])(uint8*, uint8*, int, void *);
-    int (*SAD_Macroblock)(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info);
-
-} AVCEncFuncPtr;
-
-/**
-This structure contains information necessary for correct padding.
-*/
-typedef struct tagPadInfo
-{
-    int i;
-    int width;
-    int j;
-    int height;
-} AVCPadInfo;
-
-
-#ifdef HTFM
-typedef struct tagHTFM_Stat
-{
-    int abs_dif_mad_avg;
-    uint countbreak;
-    int offsetArray[16];
-    int offsetRef[16];
-} HTFM_Stat;
-#endif
-
-
-/**
-This structure is the main object for AVC encoder library providing access to all
-global variables. It is allocated at PVAVCInitEncoder and freed at PVAVCCleanUpEncoder.
-@publishedAll
-*/
-typedef struct tagEncObject
-{
-
-    AVCCommonObj *common;
-
-    AVCEncBitstream     *bitstream; /* for current NAL */
-    uint8   *overrunBuffer;  /* extra output buffer to prevent current skip due to output buffer overrun*/
-    int     oBSize;     /* size of allocated overrun buffer */
-
-    /* rate control */
-    AVCRateControl      *rateCtrl; /* pointer to the rate control structure */
-
-    /* encoding operation */
-    AVCEnc_State        enc_state; /* encoding state */
-
-    AVCFrameIO          *currInput; /* pointer to the current input frame */
-
-    int                 currSliceGroup; /* currently encoded slice group id */
-
-    int     level[24][16], run[24][16]; /* scratch memory */
-    int     leveldc[16], rundc[16]; /* for DC component */
-    int     levelcdc[16], runcdc[16]; /* for chroma DC component */
-    int     numcoefcdc[2]; /* number of coefficient for chroma DC */
-    int     numcoefdc;      /* number of coefficients for DC component */
-
-    int     qp_const;
-    int     qp_const_c;
-    /********* intra prediction scratch memory **********************/
-    uint8   pred_i16[AVCNumI16PredMode][256]; /* save prediction for MB */
-    uint8   pred_i4[AVCNumI4PredMode][16];  /* save prediction for blk */
-    uint8   pred_ic[AVCNumIChromaMode][128];  /* for 2 chroma */
-
-    int     mostProbableI4Mode[16]; /* in raster scan order */
-    /********* motion compensation related variables ****************/
-    AVCMV   *mot16x16;          /* Saved motion vectors for 16x16 block*/
-    AVCMV(*mot16x8)[2];     /* Saved motion vectors for 16x8 block*/
-    AVCMV(*mot8x16)[2];     /* Saved motion vectors for 8x16 block*/
-    AVCMV(*mot8x8)[4];      /* Saved motion vectors for 8x8 block*/
-
-    /********* subpel position **************************************/
-    uint32  subpel_pred[SUBPEL_PRED_BLK_SIZE/*<<2*/]; /* all 16 sub-pel positions  */
-    uint8   *hpel_cand[9];      /* pointer to half-pel position */
-    int     best_hpel_pos;          /* best position */
-    uint8   qpel_cand[8][24*16];        /* pointer to quarter-pel position */
-    int     best_qpel_pos;
-    uint8   *bilin_base[9][4];    /* pointer to 4 position at top left of bilinear quarter-pel */
-
-    /* need for intra refresh rate */
-    uint8   *intraSearch;       /* Intra Array for MBs to be intra searched */
-    uint    firstIntraRefreshMBIndx; /* keep track for intra refresh */
-
-    int     i4_sad;             /* temporary for i4 mode SAD */
-    int     *min_cost;          /* Minimum cost for the all MBs */
-    int     lambda_mode;        /* Lagrange parameter for mode selection */
-    int     lambda_motion;      /* Lagrange parameter for MV selection */
-
-    uint8   *mvbits_array;      /* Table for bits spent in the cost funciton */
-    uint8   *mvbits;            /* An offset to the above array. */
-
-    /* to speedup the SAD calculation */
-    void *sad_extra_info;
-    uint8 currYMB[256];     /* interleaved current macroblock in HTFM order */
-
-#ifdef HTFM
-    int nrmlz_th[48];       /* Threshold for fast SAD calculation using HTFM */
-    HTFM_Stat htfm_stat;    /* For statistics collection */
-#endif
-
-    /* statistics */
-    int numIntraMB;         /* keep track of number of intra MB */
-
-    /* encoding complexity control */
-    uint fullsearch_enable; /* flag to enable full-pel full-search */
-
-    /* misc.*/
-    bool outOfBandParamSet; /* flag to enable out-of-band param set */
-
-    AVCSeqParamSet extSPS; /* for external SPS */
-    AVCPicParamSet extPPS; /* for external PPS */
-
-    /* time control */
-    uint32  prevFrameNum;   /* previous frame number starting from modTimeRef */
-    uint32  modTimeRef;     /* Reference modTime update every I-Vop*/
-    uint32  wrapModTime;    /* Offset to modTime Ref, rarely used */
-
-    uint    prevProcFrameNum;  /* previously processed frame number, could be skipped */
-    uint    prevCodedFrameNum;  /* previously encoded frame number */
-    /* POC related variables */
-    uint32  dispOrdPOCRef;      /* reference POC is displayer order unit. */
-
-    /* Function pointers */
-    AVCEncFuncPtr *functionPointer; /* store pointers to platform specific functions */
-
-    /* Application control data */
-    AVCHandle *avcHandle;
-
-
-} AVCEncObject;
-
-
-#endif /*AVCENC_INT_H_INCLUDED*/
-
diff --git a/media/libstagefright/codecs/avc/enc/src/avcenc_lib.h b/media/libstagefright/codecs/avc/enc/src/avcenc_lib.h
deleted file mode 100644
index 17e28ef..0000000
--- a/media/libstagefright/codecs/avc/enc/src/avcenc_lib.h
+++ /dev/null
@@ -1,1020 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-/**
-This file contains declarations of internal functions for AVC decoder library.
-@publishedAll
-*/
-#ifndef AVCENC_LIB_H_INCLUDED
-#define AVCENC_LIB_H_INCLUDED
-
-#ifndef AVCLIB_COMMON_H_INCLUDED
-#include "avclib_common.h"
-#endif
-#ifndef AVCENC_INT_H_INCLUDED
-#include "avcenc_int.h"
-#endif
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-    /*------------- block.c -------------------------*/
-
-    /**
-    This function perform residue calculation, transform, quantize, inverse quantize,
-    inverse transform and residue compensation on a 4x4 block.
-    \param "encvid" "Pointer to AVCEncObject."
-    \param "blkidx"  "raster scan block index of the current 4x4 block."
-    \param "cur"    "Pointer to the reconstructed block."
-    \param "org"    "Pointer to the original block."
-    \param "coef_cost"  "Pointer to the coefficient cost to be filled in and returned."
-    \return "Number of non-zero coefficients."
-    */
-    int dct_luma(AVCEncObject *encvid, int blkidx, uint8 *cur, uint8 *org, int *coef_cost);
-
-    /**
-    This function performs IDCT on an INTER macroblock.
-    \param "video"  "Pointer to AVCCommonObj."
-    \param "curL"   "Pointer to the origin of the macroblock on the current frame."
-    \param "currMB" "Pointer to the AVCMacroblock structure."
-    \param "picPitch" "Pitch of the current frame."
-    \return "void".
-    */
-    void MBInterIdct(AVCCommonObj *video, uint8 *curL, AVCMacroblock *currMB, int picPitch);
-
-    /**
-    This function perform residue calculation, transform, quantize, inverse quantize,
-    inverse transform and residue compensation on a macroblock.
-    \param "encvid" "Pointer to AVCEncObject."
-    \param "curL"   "Pointer to the reconstructed MB."
-    \param "orgL"    "Pointer to the original MB."
-    \return "void"
-    */
-    void dct_luma_16x16(AVCEncObject *encvid, uint8 *curL, uint8 *orgL);
-
-    /**
-    This function perform residue calculation, transform, quantize, inverse quantize,
-    inverse transform and residue compensation for chroma components of an MB.
-    \param "encvid" "Pointer to AVCEncObject."
-    \param "curC"   "Pointer to the reconstructed MB."
-    \param "orgC"    "Pointer to the original MB."
-    \param "cr"     "Flag whether it is Cr or not."
-    \return "void"
-    */
-    void dct_chroma(AVCEncObject *encvid, uint8 *curC, uint8 *orgC, int cr);
-
-    /*----------- init.c ------------------*/
-    /**
-    This function interprets the encoding parameters provided by users in encParam.
-    The results are kept in AVCEncObject, AVCSeqParamSet, AVCPicParamSet and AVCSliceHeader.
-    \param "encvid"     "Pointer to AVCEncObject."
-    \param "encParam"   "Pointer to AVCEncParam."
-    \param "extSPS"     "External SPS template to be followed. NULL if not present."
-    \param "extPPS"     "External PPS template to be followed. NULL if not present."
-    \return "see AVCEnc_Status."
-    */
-    AVCEnc_Status  SetEncodeParam(AVCHandle *avcHandle, AVCEncParams *encParam,
-                                  void *extSPS, void *extPPS);
-
-    /**
-    This function verifies the encoding parameters whether they meet the set of supported
-    tool by a specific profile. If the profile is not set, it will just find the closest
-    profile instead of verifying it.
-    \param "video"  "Pointer to AVCEncObject."
-    \param "seqParam"   "Pointer to AVCSeqParamSet."
-    \param "picParam"   "Pointer to AVCPicParamSet."
-    \return "AVCENC_SUCCESS if success,
-            AVCENC_PROFILE_NOT_SUPPORTED if the specified profile
-                is not supported by this version of the library,
-            AVCENC_TOOLS_NOT_SUPPORTED if any of the specified encoding tools are
-            not supported by the user-selected profile."
-    */
-    AVCEnc_Status VerifyProfile(AVCEncObject *video, AVCSeqParamSet *seqParam, AVCPicParamSet *picParam);
-
-    /**
-    This function verifies the encoding parameters whether they meet the requirement
-    for a specific level. If the level is not set, it will just find the closest
-    level instead of verifying it.
-    \param "video"  "Pointer to AVCEncObject."
-    \param "seqParam"   "Pointer to AVCSeqParamSet."
-    \param "picParam"   "Pointer to AVCPicParamSet."
-    \return "AVCENC_SUCCESS if success,
-            AVCENC_LEVEL_NOT_SUPPORTED if the specified level
-                is not supported by this version of the library,
-            AVCENC_LEVEL_FAIL if any of the encoding parameters exceed
-            the range of the user-selected level."
-    */
-    AVCEnc_Status VerifyLevel(AVCEncObject *video, AVCSeqParamSet *seqParam, AVCPicParamSet *picParam);
-
-    /**
-    This funciton initializes the frame encoding by setting poc/frame_num related parameters. it
-    also performs motion estimation.
-    \param "encvid" "Pointer to the AVCEncObject."
-    \return "AVCENC_SUCCESS if success, AVCENC_NO_PICTURE if there is no input picture
-            in the queue to encode, AVCENC_POC_FAIL or AVCENC_CONSECUTIVE_NONREF for POC
-            related errors, AVCENC_NEW_IDR if new IDR is detected."
-    */
-    AVCEnc_Status InitFrame(AVCEncObject *encvid);
-
-    /**
-    This function initializes slice header related variables and other variables necessary
-    for decoding one slice.
-    \param "encvid" "Pointer to the AVCEncObject."
-    \return "AVCENC_SUCCESS if success."
-    */
-    AVCEnc_Status InitSlice(AVCEncObject *encvid);
-
-    /*----------- header.c ----------------*/
-    /**
-    This function performs bitstream encoding of the sequence parameter set NAL.
-    \param "encvid" "Pointer to the AVCEncObject."
-    \param "stream" "Pointer to AVCEncBitstream."
-    \return "AVCENC_SUCCESS if success or AVCENC_SPS_FAIL or others for unexpected failure which
-    should not occur. The SPS parameters should all be verified before this function is called."
-    */
-    AVCEnc_Status EncodeSPS(AVCEncObject *encvid, AVCEncBitstream *stream);
-
-    /**
-    This function encodes the VUI parameters into the sequence parameter set bitstream.
-    \param "stream" "Pointer to AVCEncBitstream."
-    \param "vui"    "Pointer to AVCVUIParams."
-    \return "nothing."
-    */
-    void EncodeVUI(AVCEncBitstream* stream, AVCVUIParams* vui);
-
-    /**
-    This function encodes HRD parameters into the sequence parameter set bitstream
-    \param "stream" "Pointer to AVCEncBitstream."
-    \param "hrd"    "Pointer to AVCHRDParams."
-    \return "nothing."
-    */
-    void EncodeHRD(AVCEncBitstream* stream, AVCHRDParams* hrd);
-
-
-    /**
-    This function performs bitstream encoding of the picture parameter set NAL.
-    \param "encvid" "Pointer to the AVCEncObject."
-    \param "stream" "Pointer to AVCEncBitstream."
-    \return "AVCENC_SUCCESS if success or AVCENC_PPS_FAIL or others for unexpected failure which
-    should not occur. The SPS parameters should all be verified before this function is called."
-    */
-    AVCEnc_Status EncodePPS(AVCEncObject *encvid, AVCEncBitstream *stream);
-
-    /**
-    This function encodes slice header information which has been initialized or fabricated
-    prior to entering this funciton.
-    \param "encvid" "Pointer to the AVCEncObject."
-    \param "stream" "Pointer to AVCEncBitstream."
-    \return "AVCENC_SUCCESS if success or bitstream fail statuses."
-    */
-    AVCEnc_Status EncodeSliceHeader(AVCEncObject *encvid, AVCEncBitstream *stream);
-
-    /**
-    This function encodes reference picture list reordering relted syntax.
-    \param "video" "Pointer to AVCCommonObj."
-    \param "stream" "Pointer to AVCEncBitstream."
-    \param "sliceHdr" "Pointer to AVCSliceHdr."
-    \param "slice_type" "Value of slice_type - 5 if greater than 5."
-    \return "AVCENC_SUCCESS for success and AVCENC_FAIL otherwise."
-    */
-    AVCEnc_Status ref_pic_list_reordering(AVCCommonObj *video, AVCEncBitstream *stream, AVCSliceHeader *sliceHdr, int slice_type);
-
-    /**
-    This function encodes dec_ref_pic_marking related syntax.
-    \param "video" "Pointer to AVCCommonObj."
-    \param "stream" "Pointer to AVCEncBitstream."
-    \param "sliceHdr" "Pointer to AVCSliceHdr."
-    \return "AVCENC_SUCCESS for success and AVCENC_FAIL otherwise."
-    */
-    AVCEnc_Status dec_ref_pic_marking(AVCCommonObj *video, AVCEncBitstream *stream, AVCSliceHeader *sliceHdr);
-
-    /**
-    This function initializes the POC related variables and the POC syntax to be encoded
-    to the slice header derived from the disp_order and is_reference flag of the original
-    input frame to be encoded.
-    \param "video"  "Pointer to the AVCEncObject."
-    \return "AVCENC_SUCCESS if success,
-            AVCENC_POC_FAIL if the poc type is undefined or
-            AVCENC_CONSECUTIVE_NONREF if there are consecutive non-reference frame for POC type 2."
-    */
-    AVCEnc_Status InitPOC(AVCEncObject *video);
-
-    /**
-    This function performs POC related operation after a picture is decoded.
-    \param "video" "Pointer to AVCCommonObj."
-    \return "AVCENC_SUCCESS"
-    */
-    AVCEnc_Status PostPOC(AVCCommonObj *video);
-
-    /*----------- bitstream_io.c ----------------*/
-    /**
-    This function initializes the bitstream structure with the information given by
-    the users.
-    \param "bitstream"  "Pointer to the AVCEncBitstream structure."
-    \param "buffer"     "Pointer to the unsigned char buffer for output."
-    \param "buf_size"   "The size of the buffer in bytes."
-    \param "overrunBuffer"  "Pointer to extra overrun buffer."
-    \param "oBSize"     "Size of overrun buffer in bytes."
-    \return "AVCENC_SUCCESS if success, AVCENC_BITSTREAM_INIT_FAIL if fail"
-    */
-    AVCEnc_Status BitstreamEncInit(AVCEncBitstream *bitstream, uint8 *buffer, int buf_size,
-                                   uint8 *overrunBuffer, int oBSize);
-
-    /**
-    This function writes the data from the cache into the bitstream buffer. It also adds the
-    emulation prevention code if necessary.
-    \param "stream"     "Pointer to the AVCEncBitstream structure."
-    \return "AVCENC_SUCCESS if success or AVCENC_BITSTREAM_BUFFER_FULL if fail."
-    */
-    AVCEnc_Status AVCBitstreamSaveWord(AVCEncBitstream *stream);
-
-    /**
-    This function writes the codeword into the cache which will eventually be written to
-    the bitstream buffer.
-    \param "stream"     "Pointer to the AVCEncBitstream structure."
-    \param "nBits"      "Number of bits in the codeword."
-    \param "code"       "The codeword."
-    \return "AVCENC_SUCCESS if success or AVCENC_BITSTREAM_BUFFER_FULL if fail."
-    */
-    AVCEnc_Status BitstreamWriteBits(AVCEncBitstream *stream, int nBits, uint code);
-
-    /**
-    This function writes one bit of data into the cache which will eventually be written
-    to the bitstream buffer.
-    \param "stream"     "Pointer to the AVCEncBitstream structure."
-    \param "code"       "The codeword."
-    \return "AVCENC_SUCCESS if success or AVCENC_BITSTREAM_BUFFER_FULL if fail."
-    */
-    AVCEnc_Status BitstreamWrite1Bit(AVCEncBitstream *stream, uint code);
-
-    /**
-    This function adds trailing bits to the bitstream and reports back the final EBSP size.
-    \param "stream"     "Pointer to the AVCEncBitstream structure."
-    \param "nal_size"   "Output the final NAL size."
-    \return "AVCENC_SUCCESS if success or AVCENC_BITSTREAM_BUFFER_FULL if fail."
-    */
-    AVCEnc_Status BitstreamTrailingBits(AVCEncBitstream *bitstream, uint *nal_size);
-
-    /**
-    This function checks whether the current bit position is byte-aligned or not.
-    \param "stream" "Pointer to the bitstream structure."
-    \return "true if byte-aligned, false otherwise."
-    */
-    bool byte_aligned(AVCEncBitstream *stream);
-
-
-    /**
-    This function checks the availability of overrun buffer and switches to use it when
-    normal bufffer is not big enough.
-    \param "stream" "Pointer to the bitstream structure."
-    \param "numExtraBytes" "Number of extra byte needed."
-    \return "AVCENC_SUCCESS or AVCENC_FAIL."
-    */
-    AVCEnc_Status AVCBitstreamUseOverrunBuffer(AVCEncBitstream* stream, int numExtraBytes);
-
-
-    /*-------------- intra_est.c ---------------*/
-
-    /** This function performs intra/inter decision based on ABE.
-    \param "encvid" "Pointer to AVCEncObject."
-    \param "min_cost"   "Best inter cost."
-    \param "curL"   "Pointer to the current MB origin in reconstructed frame."
-    \param "picPitch" "Pitch of the reconstructed frame."
-    \return "Boolean for intra mode."
-    */
-
-//bool IntraDecisionABE(AVCEncObject *encvid, int min_cost, uint8 *curL, int picPitch);
-    bool IntraDecision(int *min_cost, uint8 *cur, int pitch, bool ave);
-
-    /**
-    This function performs intra prediction mode search.
-    \param "encvid" "Pointer to AVCEncObject."
-    \param "mbnum"  "Current MB number."
-    \param "curL"   "Pointer to the current MB origin in reconstructed frame."
-    \param "picPitch" "Pitch of the reconstructed frame."
-    \return "void."
-    */
-    void MBIntraSearch(AVCEncObject *encvid, int mbnum, uint8 *curL, int picPitch);
-
-    /**
-    This function generates all the I16 prediction modes for an MB and keep it in
-    encvid->pred_i16.
-    \param "encvid" "Pointer to AVCEncObject."
-    \return "void"
-    */
-    void intrapred_luma_16x16(AVCEncObject *encvid);
-
-    /**
-    This function calculate the cost of all I16 modes and compare them to get the minimum.
-    \param "encvid" "Pointer to AVCEncObject."
-    \param "orgY"   "Pointer to the original luma MB."
-    \param "min_cost" "Pointer to the minimal cost so-far."
-    \return "void"
-    */
-    void find_cost_16x16(AVCEncObject *encvid, uint8 *orgY, int *min_cost);
-
-    /**
-    This function calculates the cost of each I16 mode.
-    \param "org"    "Pointer to the original luma MB."
-    \param "org_pitch" "Stride size of the original frame."
-    \param "pred"   "Pointer to the prediction values."
-    \param "min_cost" "Minimal cost so-far."
-    \return "Cost"
-    */
-
-    int cost_i16(uint8 *org, int org_pitch, uint8 *pred, int min_cost);
-
-    /**
-    This function generates all the I4 prediction modes and select the best one
-    for all the blocks inside a macroblock.It also calls dct_luma to generate the reconstructed
-    MB, and transform coefficients to be encoded.
-    \param "encvid" "Pointer to AVCEncObject."
-    \param "min_cost" "Pointer to the minimal cost so-far."
-    \return "void"
-    */
-    void mb_intra4x4_search(AVCEncObject *encvid, int *min_cost);
-
-    /**
-    This function calculates the most probable I4 mode of a given 4x4 block
-    from neighboring informationaccording to AVC/H.264 standard.
-    \param "video"  "Pointer to AVCCommonObj."
-    \param "blkidx" "The current block index."
-    \return "Most probable mode."
-    */
-    int FindMostProbableI4Mode(AVCCommonObj *video, int blkidx);
-
-    /**
-    This function is where a lot of actions take place in the 4x4 block level inside
-    mb_intra4x4_search.
-    \param "encvid" "Pointer to AVCEncObject."
-    \param "blkidx" "The current 4x4 block index."
-    \param "cur"    "Pointer to the reconstructed block."
-    \param "org"    "Pointer to the original block."
-    \return "Minimal cost, also set currMB->i4Mode"
-    */
-    int blk_intra4x4_search(AVCEncObject *encvid, int blkidx, uint8 *cur, uint8 *org);
-
-    /**
-    This function calculates the cost of a given I4 prediction mode.
-    \param "org"    "Pointer to the original block."
-    \param "org_pitch"  "Stride size of the original frame."
-    \param "pred"   "Pointer to the prediction block. (encvid->pred_i4)"
-    \param "cost"   "Pointer to the minimal cost (to be updated)."
-    \return "void"
-    */
-    void cost_i4(uint8 *org, int org_pitch, uint8 *pred, uint16 *cost);
-
-    /**
-    This function performs chroma intra search. Each mode is saved in encvid->pred_ic.
-    \param "encvid" "Pointer to AVCEncObject."
-    \return "void"
-    */
-    void chroma_intra_search(AVCEncObject *encvid);
-
-    /**
-    This function calculates the cost of a chroma prediction mode.
-    \param "orgCb"  "Pointer to the original Cb block."
-    \param "orgCr"  "Pointer to the original Cr block."
-    \param "org_pitch"  "Stride size of the original frame."
-    \param "pred"   "Pointer to the prediction block (encvid->pred_ic)"
-    \param "mincost"    "Minimal cost so far."
-    \return "Cost."
-    */
-
-    int SATDChroma(uint8 *orgCb, uint8 *orgCr, int org_pitch, uint8 *pred, int mincost);
-
-    /*-------------- motion_comp.c ---------------*/
-
-    /**
-    This is a main function to peform inter prediction.
-    \param "encvid"     "Pointer to AVCEncObject."
-    \param "video"      "Pointer to AVCCommonObj."
-    \return "void".
-    */
-    void AVCMBMotionComp(AVCEncObject *encvid, AVCCommonObj *video);
-
-
-    /**
-    This function is called for luma motion compensation.
-    \param "ref"    "Pointer to the origin of a reference luma."
-    \param "picwidth"   "Width of the picture."
-    \param "picheight"  "Height of the picture."
-    \param "x_pos"  "X-coordinate of the predicted block in quarter pel resolution."
-    \param "y_pos"  "Y-coordinate of the predicted block in quarter pel resolution."
-    \param "pred"   "Pointer to the output predicted block."
-    \param "pred_pitch" "Width of pred."
-    \param "blkwidth"   "Width of the current partition."
-    \param "blkheight"  "Height of the current partition."
-    \return "void"
-    */
-    void eLumaMotionComp(uint8 *ref, int picwidth, int picheight,
-                         int x_pos, int y_pos,
-                         uint8 *pred, int pred_pitch,
-                         int blkwidth, int blkheight);
-
-    void eFullPelMC(uint8 *in, int inwidth, uint8 *out, int outpitch,
-                    int blkwidth, int blkheight);
-
-    void eHorzInterp1MC(uint8 *in, int inpitch, uint8 *out, int outpitch,
-                        int blkwidth, int blkheight, int dx);
-
-    void eHorzInterp2MC(int *in, int inpitch, uint8 *out, int outpitch,
-                        int blkwidth, int blkheight, int dx);
-
-    void eHorzInterp3MC(uint8 *in, int inpitch, int *out, int outpitch,
-                        int blkwidth, int blkheight);
-
-    void eVertInterp1MC(uint8 *in, int inpitch, uint8 *out, int outpitch,
-                        int blkwidth, int blkheight, int dy);
-
-    void eVertInterp2MC(uint8 *in, int inpitch, int *out, int outpitch,
-                        int blkwidth, int blkheight);
-
-    void eVertInterp3MC(int *in, int inpitch, uint8 *out, int outpitch,
-                        int blkwidth, int blkheight, int dy);
-
-    void eDiagonalInterpMC(uint8 *in1, uint8 *in2, int inpitch,
-                           uint8 *out, int outpitch,
-                           int blkwidth, int blkheight);
-
-    void eChromaMotionComp(uint8 *ref, int picwidth, int picheight,
-                           int x_pos, int y_pos, uint8 *pred, int pred_pitch,
-                           int blkwidth, int blkheight);
-
-    void eChromaDiagonalMC_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                                uint8 *pOut, int predPitch, int blkwidth, int blkheight);
-
-    void eChromaHorizontalMC_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                                  uint8 *pOut, int predPitch, int blkwidth, int blkheight);
-
-    void eChromaVerticalMC_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                                uint8 *pOut, int predPitch, int blkwidth, int blkheight);
-
-    void eChromaFullMC_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                            uint8 *pOut, int predPitch, int blkwidth, int blkheight);
-
-    void eChromaVerticalMC2_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                                 uint8 *pOut, int predPitch, int blkwidth, int blkheight);
-
-    void eChromaHorizontalMC2_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                                   uint8 *pOut, int predPitch, int blkwidth, int blkheight);
-
-    void eChromaDiagonalMC2_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                                 uint8 *pOut, int predPitch, int blkwidth, int blkheight);
-
-
-    /*-------------- motion_est.c ---------------*/
-
-    /**
-    Allocate and initialize arrays necessary for motion search algorithm.
-    \param "envid" "Pointer to AVCEncObject."
-    \return "AVC_SUCCESS or AVC_MEMORY_FAIL."
-    */
-    AVCEnc_Status InitMotionSearchModule(AVCHandle *avcHandle);
-
-    /**
-    Clean up memory allocated in InitMotionSearchModule.
-    \param "envid" "Pointer to AVCEncObject."
-    \return "void."
-    */
-    void CleanMotionSearchModule(AVCHandle *avcHandle);
-
-
-    /**
-    This function performs motion estimation of all macroblocks in a frame during the InitFrame.
-    The goal is to find the best MB partition for inter and find out if intra search is needed for
-    any MBs. This intra MB tendency can be used for scene change detection.
-    \param "encvid" "Pointer to AVCEncObject."
-    \return "void"
-    */
-    void AVCMotionEstimation(AVCEncObject *encvid);
-
-    /**
-    This function performs repetitive edge padding to the reference picture by adding 16 pixels
-    around the luma and 8 pixels around the chromas.
-    \param "refPic" "Pointer to the reference picture."
-    \return "void"
-    */
-    void  AVCPaddingEdge(AVCPictureData *refPic);
-
-    /**
-    This function keeps track of intra refresh macroblock locations.
-    \param "encvid" "Pointer to the global array structure AVCEncObject."
-    \param "mblock" "Pointer to the array of AVCMacroblock structures."
-    \param "totalMB" "Total number of MBs in a frame."
-    \param "numRefresh" "Number of MB to be intra refresh in a single frame."
-    \return "void"
-    */
-    void AVCRasterIntraUpdate(AVCEncObject *encvid, AVCMacroblock *mblock, int totalMB, int numRefresh);
-
-#ifdef HTFM
-    void InitHTFM(VideoEncData *encvid, HTFM_Stat *htfm_stat, double *newvar, int *collect);
-    void UpdateHTFM(AVCEncObject *encvid, double *newvar, double *exp_lamda, HTFM_Stat *htfm_stat);
-    void CalcThreshold(double pf, double exp_lamda[], int nrmlz_th[]);
-    void    HTFMPrepareCurMB_AVC(AVCEncObject *encvid, HTFM_Stat *htfm_stat, uint8 *cur, int pitch);
-#endif
-
-    /**
-    This function reads the input MB into a smaller faster memory space to minimize the cache miss.
-    \param "encvid" "Pointer to the global AVCEncObject."
-    \param "cur"    "Pointer to the original input macroblock."
-    \param "pitch"  "Stride size of the input frame (luma)."
-    \return "void"
-    */
-    void    AVCPrepareCurMB(AVCEncObject *encvid, uint8 *cur, int pitch);
-
-    /**
-    Performs motion vector search for a macroblock.
-    \param "encvid" "Pointer to AVCEncObject structure."
-    \param "cur"    "Pointer to the current macroblock in the input frame."
-    \param "best_cand" "Array of best candidates (to be filled in and returned)."
-    \param "i0"     "X-coordinate of the macroblock."
-    \param "j0"     "Y-coordinate of the macroblock."
-    \param "type_pred" "Indicates the type of operations."
-    \param "FS_en"      "Flag for fullsearch enable."
-    \param "hp_guess"   "Guess for half-pel search."
-    \return "void"
-    */
-    void AVCMBMotionSearch(AVCEncObject *encvid, uint8 *cur, uint8 *best_cand[],
-                           int i0, int j0, int type_pred, int FS_en, int *hp_guess);
-
-//AVCEnc_Status AVCMBMotionSearch(AVCEncObject *encvid, AVCMacroblock *currMB, int mbNum,
-//                           int num_pass);
-
-    /**
-    Perform full-pel exhaustive search around the predicted MV.
-    \param "encvid" "Pointer to AVCEncObject structure."
-    \param "prev"   "Pointer to the reference frame."
-    \param "cur"    "Pointer to the input macroblock."
-    \param "imin"   "Pointer to minimal mv (x)."
-    \param "jmin"   "Pointer to minimal mv (y)."
-    \param "ilow, ihigh, jlow, jhigh"   "Lower bound on search range."
-    \param "cmvx, cmvy" "Predicted MV value."
-
-    \return "The cost function of the best candidate."
-    */
-    int AVCFullSearch(AVCEncObject *encvid, uint8 *prev, uint8 *cur,
-                      int *imin, int *jmin, int ilow, int ihigh, int jlow, int jhigh,
-                      int cmvx, int cmvy);
-
-    /**
-    Select candidates from neighboring blocks according to the type of the
-    prediction selection.
-    \param "mvx"    "Pointer to the candidate, x-coordinate."
-    \param "mvy"    "Pointer to the candidate, y-coordinate."
-    \param "num_can"    "Pointer to the number of candidates returned."
-    \param "imb"    "The MB index x-coordinate."
-    \param "jmb"    "The MB index y-coordinate."
-    \param "type_pred"  "Type of the prediction."
-    \param "cmvx, cmvy" "Pointer to predicted MV (modified version)."
-    \return "void."
-    */
-    void AVCCandidateSelection(int *mvx, int *mvy, int *num_can, int imb, int jmb,
-                               AVCEncObject *encvid, int type_pred, int *cmvx, int *cmvy);
-
-    /**
-    Utility function to move the values in the array dn according to the new
-    location to avoid redundant calculation.
-    \param "dn" "Array of integer of size 9."
-    \param "new_loc"    "New location index."
-    \return "void."
-    */
-    void AVCMoveNeighborSAD(int dn[], int new_loc);
-
-    /**
-    Find minimum index of dn.
-    \param "dn" "Array of integer of size 9."
-    \return "The index of dn with the smallest dn[] value."
-    */
-    int AVCFindMin(int dn[]);
-
-
-    /*------------- findhalfpel.c -------------------*/
-
-    /**
-    Search for the best half-pel resolution MV around the full-pel MV.
-    \param "encvid" "Pointer to the global AVCEncObject structure."
-    \param "cur"    "Pointer to the current macroblock."
-    \param "mot"    "Pointer to the AVCMV array of the frame."
-    \param "ncand"  "Pointer to the origin of the fullsearch result."
-    \param "xpos"   "The current MB position in x."
-    \param "ypos"   "The current MB position in y."
-    \param "hp_guess"   "Input to help speedup the search."
-    \param "cmvx, cmvy" "Predicted motion vector use for mvcost."
-    \return "Minimal cost (SATD) without MV cost. (for rate control purpose)"
-    */
-    int AVCFindHalfPelMB(AVCEncObject *encvid, uint8 *cur, AVCMV *mot, uint8 *ncand,
-                         int xpos, int ypos, int hp_guess, int cmvx, int cmvy);
-
-    /**
-    This function generates sub-pel pixels required to do subpel MV search.
-    \param "subpel_pred" "Pointer to 2-D array, each array for each position."
-    \param "ncand" "Pointer to the full-pel center position in ref frame."
-    \param "lx" "Pitch of the ref frame."
-    \return "void"
-     */
-    void GenerateHalfPelPred(uint8 *subpel_pred, uint8 *ncand, int lx);
-
-    /**
-    This function calculate vertical interpolation at half-point of size 4x17.
-    \param "dst" "Pointer to destination."
-    \param "ref" "Pointer to the starting reference pixel."
-    \return "void."
-    */
-    void VertInterpWClip(uint8 *dst, uint8 *ref);
-
-    /**
-    This function generates quarter-pel pixels around the best half-pel result
-    during the sub-pel MV search.
-    \param "bilin_base"  "Array of pointers to be used as basis for q-pel interp."
-    \param "qpel_pred"  "Array of pointers pointing to quarter-pel candidates."
-    \param "hpel_pos" "Best half-pel position at the center."
-    \return "void"
-    */
-    void GenerateQuartPelPred(uint8 **bilin_base, uint8 *qpel_pred, int hpel_pos);
-
-    /**
-    This function calculates the SATD of a subpel candidate.
-    \param "cand"   "Pointer to a candidate."
-    \param "cur"    "Pointer to the current block."
-    \param "dmin"   "Min-so-far SATD."
-    \return "Sum of Absolute Transformed Difference."
-    */
-    int SATD_MB(uint8 *cand, uint8 *cur, int dmin);
-
-    /*------------- rate_control.c -------------------*/
-
-    /** This function is a utility function. It returns average QP of the previously encoded frame.
-    \param "rateCtrl" "Pointer to AVCRateControl structure."
-    \return "Average QP."
-    */
-    int GetAvgFrameQP(AVCRateControl *rateCtrl);
-
-    /**
-    This function takes the timestamp of the input and determine whether it should be encoded
-    or skipped.
-    \param "encvid" "Pointer to the AVCEncObject structure."
-    \param "rateCtrl"   "Pointer to the AVCRateControl structure."
-    \param "modTime"    "The 32 bit timestamp of the input frame."
-    \param "frameNum"   "Pointer to the frame number if to be encoded."
-    \return "AVC_SUCCESS or else."
-    */
-    AVCEnc_Status RCDetermineFrameNum(AVCEncObject *encvid, AVCRateControl *rateCtrl, uint32 modTime, uint *frameNum);
-
-    /**
-    This function updates the buffer fullness when frames are dropped either by the
-    rate control algorithm or by the users to make sure that target bit rate is still met.
-    \param "video" "Pointer to the common object structure."
-    \param "rateCtrl" "Pointer to rate control structure."
-    \param "frameInc" "Difference of the current frame number and previous frame number."
-    \return "void."
-    */
-    void RCUpdateBuffer(AVCCommonObj *video, AVCRateControl *rateCtrl, int frameInc);
-
-    /**
-    This function initializes rate control module and allocates necessary bufferes to do the job.
-    \param "avcHandle" "Pointer to the encoder handle."
-    \return "AVCENC_SUCCESS or AVCENC_MEMORY_FAIL."
-    */
-    AVCEnc_Status InitRateControlModule(AVCHandle *avcHandle);
-
-    /**
-    This function frees buffers allocated in InitRateControlModule.
-    \param "avcHandle" "Pointer to the encoder handle."
-    \return "void."
-    */
-    void CleanupRateControlModule(AVCHandle *avcHandle);
-
-    /**
-    This function is called at the beginning of each GOP or the first IDR frame. It calculates
-    target bits for a GOP.
-    \param "encvid" "Pointer to the encoder object."
-    \return "void."
-    */
-    void RCInitGOP(AVCEncObject *encvid);
-
-    /**
-    This function calculates target bits for a particular frame.
-    \param "video"  "Pointer to the AVCEncObject structure."
-    \return "void"
-    */
-    void RCInitFrameQP(AVCEncObject *video);
-
-    /**
-    This function calculates QP for the upcoming frame or basic unit.
-    \param "encvid" "Pointer to the encoder object."
-    \param "rateCtrl" "Pointer to the rate control object."
-    \return "QP value ranging from 0-51."
-    */
-    int  RCCalculateQP(AVCEncObject *encvid, AVCRateControl *rateCtrl);
-
-    /**
-    This function translates the luma QP to chroma QP and calculates lambda based on QP.
-    \param "video"  "Pointer to the AVCEncObject structure."
-    \return "void"
-    */
-    void RCInitChromaQP(AVCEncObject *encvid);
-
-    /**
-    This function is called before encoding each macroblock.
-    \param "encvid" "Pointer to the encoder object."
-    \return "void."
-    */
-    void RCInitMBQP(AVCEncObject *encvid);
-
-    /**
-    This function updates bits usage stats after encoding an macroblock.
-    \param "video" "Pointer to AVCCommonObj."
-    \param "rateCtrl" "Pointer to AVCRateControl."
-    \param "num_header_bits" "Number of bits used for MB header."
-    \param "num_texture_bits" "Number of bits used for MB texture."
-    \return "void"
-    */
-    void RCPostMB(AVCCommonObj *video, AVCRateControl *rateCtrl, int num_header_bits, int num_texture_bits);
-
-    /**
-    This function calculates the difference between prediction and original MB.
-    \param "encvid" "Pointer to the encoder object."
-    \param "currMB" "Pointer to the current macroblock structure."
-    \param "orgL" "Pointer to the original MB."
-    \param "orgPitch" "Pointer to the original picture pitch."
-    \return "void."
-    */
-    void RCCalculateMAD(AVCEncObject *encvid, AVCMacroblock *currMB, uint8 *orgL, int orgPitch);
-
-    /**
-    Restore QP related parameters of previous MB when current MB is skipped.
-    \param "currMB" "Pointer to the current macroblock."
-    \param "video"  "Pointer to the common video structure."
-    \param "encvid" "Pointer to the global encoding structure."
-    \return "void"
-    */
-    void RCRestoreQP(AVCMacroblock *currMB, AVCCommonObj *video, AVCEncObject *encvid);
-
-    /**
-    This function is called after done with a frame.
-    \param "encvid" "Pointer to the encoder object."
-    \return "AVCENC_SUCCESS or AVCENC_SKIPPED_PICTURE when bufer overflow (need to discard current frame)."
-    */
-    AVCEnc_Status RCUpdateFrame(AVCEncObject *encvid);
-
-    /*--------- residual.c -------------------*/
-
-    /**
-    This function encodes the intra pcm data and fill it in the corresponding location
-    on the current picture.
-    \param "video"  "Pointer to AVCEncObject."
-    \return "AVCENC_SUCCESS if success, or else for bitstream errors."
-    */
-    AVCEnc_Status EncodeIntraPCM(AVCEncObject *video);
-
-    /**
-    This function performs CAVLC syntax encoding on the run and level information of the coefficients.
-    The level and run arrays are elements in AVCEncObject structure, populated by TransQuantZZ,
-    TransQuantIntraDC and TransQuantChromaDC functions.
-    \param "video"  "Pointer to AVCEncObject."
-    \param "type"   "One of AVCResidualType for a particular 4x4 block."
-    \param "bindx"  "Block index or number of nonzero coefficients for AVC_Intra16DC and AVC_ChromaDC mode."
-    \param "currMB" "Pointer to the current macroblock structure."
-    \return "AVCENC_SUCCESS for success."
-    \Note   "This function has 32-bit machine specific instruction!!!!"
-    */
-    AVCEnc_Status enc_residual_block(AVCEncObject *encvid, AVCResidualType type, int bindx, AVCMacroblock *currMB);
-
-
-    /*------------- sad.c ---------------------------*/
-
-
-    int AVCSAD_MB_HalfPel_Cxhyh(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info);
-    int AVCSAD_MB_HalfPel_Cyh(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info);
-    int AVCSAD_MB_HalfPel_Cxh(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info);
-    int AVCSAD_Macroblock_C(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info);
-
-#ifdef HTFM /*  3/2/1, Hypothesis Testing Fast Matching */
-    int AVCSAD_MB_HP_HTFM_Collectxhyh(uint8 *ref, uint8 *blk, int dmin_x, void *extra_info);
-    int AVCSAD_MB_HP_HTFM_Collectyh(uint8 *ref, uint8 *blk, int dmin_x, void *extra_info);
-    int AVCSAD_MB_HP_HTFM_Collectxh(uint8 *ref, uint8 *blk, int dmin_x, void *extra_info);
-    int AVCSAD_MB_HP_HTFMxhyh(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info);
-    int AVCSAD_MB_HP_HTFMyh(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info);
-    int AVCSAD_MB_HP_HTFMxh(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info);
-    int AVCSAD_MB_HTFM_Collect(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info);
-    int AVCSAD_MB_HTFM(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info);
-#endif
-
-
-    /*------------- slice.c -------------------------*/
-
-    /**
-    This function performs the main encoding loop for a slice.
-    \param "encvid" "Pointer to AVCEncObject."
-    \return "AVCENC_SUCCESS for success, AVCENC_PICTURE_READY for end-of-picture and
-             AVCENC_FAIL or AVCENC_SLICE_EMPTY otherwise."
-    */
-    AVCEnc_Status AVCEncodeSlice(AVCEncObject *encvid);
-
-    /**
-    This function performs the main encoding operation for one macroblock.
-    \param "video" "pointer to AVCEncObject."
-    \return "AVCENC_SUCCESS for success, or other bitstream related failure status."
-    */
-    AVCEnc_Status EncodeMB(AVCEncObject *video);
-
-    /**
-    This function calls prediction INTRA/INTER functions, transform,
-    quantization and zigzag scanning to get the run-level symbols.
-    \param "encvid" "pointer to AVCEncObject."
-    \param "curL"   "pointer to Luma component of the current frame.
-    \param "curCb"  "pointer to Cb component of the current frame.
-    \param "curCr"  "pointer to Cr component of the current frame.
-    \return "void for now."
-     */
-    void MBPredTransQuantZZ(AVCEncObject *encvid, uint8 *curL, uint8 *curCb, uint8 *curCr);
-
-    /**
-    This function copies the content of the prediction MB into the reconstructed YUV
-    frame directly.
-    \param "curL"   "Pointer to the destination Y component."
-    \param "curCb"  "Pointer to the destination Cb component."
-    \param "curCr"  "Pointer to the destination Cr component."
-    \param "predBlock"  "Pointer to the prediction MB."
-    \param "picWidth"   "The width of the frame."
-    \return "None."
-    */
-    void Copy_MB(uint8 *curL, uint8 *curCb, uint8 *curCr, uint8 *predBlock, int picWidth);
-
-    /**
-    This function encodes the mb_type, CBP, prediction mode, ref idx and MV.
-    \param "currMB" "Pointer to the current macroblock structure."
-    \param "video" "Pointer to the AVCEncObject structure."
-    \return "AVCENC_SUCCESS for success or else for fail."
-    */
-    AVCEnc_Status EncodeMBHeader(AVCMacroblock *currMB, AVCEncObject *video);
-
-    /**
-    This function finds the right mb_type for a macroblock given the mbMode, CBP,
-    NumPart, PredPartMode.
-    \param "currMB" "Pointer to the current macroblock structure."
-    \param "slice_type" "Value of the slice_type."
-    \return "mb_type."
-    */
-    uint InterpretMBType(AVCMacroblock *currMB, int slice_type);
-
-    /**
-    This function encodes the mb_pred part of the macroblock data.
-    \param "video"  "Pointer to the AVCCommonObj structure."
-    \param "currMB" "Pointer to the current macroblock structure."
-    \param "stream" "Pointer to the AVCEncBitstream structure."
-    \return "AVCENC_SUCCESS for success or bitstream fail status."
-    */
-    AVCEnc_Status mb_pred(AVCCommonObj *video, AVCMacroblock *currMB, AVCEncBitstream *stream);
-
-    /**
-    This function encodes the sub_mb_pred part of the macroblock data.
-    \param "video"  "Pointer to the AVCCommonObj structure."
-    \param "currMB" "Pointer to the current macroblock structure."
-    \param "stream" "Pointer to the AVCEncBitstream structure."
-    \return "AVCENC_SUCCESS for success or bitstream fail status."
-    */
-    AVCEnc_Status sub_mb_pred(AVCCommonObj *video, AVCMacroblock *currMB, AVCEncBitstream *stream);
-
-    /**
-    This function interprets the sub_mb_type and sets necessary information
-    when the slice type is AVC_P_SLICE.
-    in the macroblock structure.
-    \param "mblock" "Pointer to current AVCMacroblock."
-    \param "sub_mb_type" "From the syntax bitstream."
-    \return "void"
-    */
-    void InterpretSubMBTypeP(AVCMacroblock *mblock, uint *sub_mb_type);
-
-    /**
-    This function interprets the sub_mb_type and sets necessary information
-    when the slice type is AVC_B_SLICE.
-    in the macroblock structure.
-    \param "mblock" "Pointer to current AVCMacroblock."
-    \param "sub_mb_type" "From the syntax bitstream."
-    \return "void"
-    */
-    void InterpretSubMBTypeB(AVCMacroblock *mblock, uint *sub_mb_type);
-
-    /**
-    This function encodes intra 4x4 mode. It calculates the predicted I4x4 mode and the
-    remnant to be encoded.
-    \param "video"  "Pointer to AVCEncObject structure."
-    \param "currMB" "Pointer to the AVCMacroblock structure."
-    \param "stream" "Pointer to AVCEncBitstream sructure."
-    \return "AVCENC_SUCCESS for success."
-    */
-    AVCEnc_Status EncodeIntra4x4Mode(AVCCommonObj *video, AVCMacroblock *currMB, AVCEncBitstream *stream);
-
-    /*------------- vlc_encode.c -----------------------*/
-    /**
-    This function encodes and writes a value into an Exp-Golomb codeword.
-    \param "bitstream" "Pointer to AVCEncBitstream."
-    \param "codeNum" "Pointer to the value of the codeNum."
-    \return "AVCENC_SUCCESS for success or bitstream error messages for fail."
-    */
-    AVCEnc_Status ue_v(AVCEncBitstream *bitstream, uint codeNum);
-
-    /**
-    This function maps and encodes signed Exp-Golomb codes.
-    \param "bitstream" "Pointer to AVCEncBitstream."
-    \param "value"  "Pointer to syntax element value."
-    \return "AVCENC_SUCCESS or AVCENC_FAIL."
-    */
-    AVCEnc_Status  se_v(AVCEncBitstream *bitstream, int value);
-
-    /**
-    This function maps and encodes truncated Exp-Golomb codes.
-    \param "bitstream" "Pointer to AVCEncBitstream."
-    \param "value"  "Pointer to syntax element value."
-    \param "range"  "Range of the value as input to determine the algorithm."
-    \return "AVCENC_SUCCESS or AVCENC_FAIL."
-    */
-    AVCEnc_Status te_v(AVCEncBitstream *bitstream, uint value, uint range);
-
-    /**
-    This function creates Exp-Golomb codeword from codeNum.
-    \param "bitstream" "Pointer to AVCEncBitstream."
-    \param "codeNum" "Pointer to the codeNum value."
-    \return "AVCENC_SUCCESS for success or bitstream error messages for fail."
-    */
-    AVCEnc_Status SetEGBitstring(AVCEncBitstream *bitstream, uint codeNum);
-
-    /**
-    This function performs CAVLC encoding of the CBP (coded block pattern) of a macroblock
-    by calling ue_v() and then mapping the CBP to the corresponding VLC codeNum.
-    \param "currMB"  "Pointer to the current AVCMacroblock structure."
-    \param "stream"  "Pointer to the AVCEncBitstream."
-    \return "void"
-    */
-    AVCEnc_Status EncodeCBP(AVCMacroblock *currMB, AVCEncBitstream *stream);
-
-    /**
-    This function encodes trailing ones and total coefficient.
-    \param "stream" "Pointer to the AVCEncBitstream."
-    \param "TrailingOnes"   "The trailing one variable output."
-    \param "TotalCoeff" "The total coefficient variable output."
-    \param "nC" "Context for number of nonzero coefficient (prediction context)."
-    \return "AVCENC_SUCCESS for success or else for bitstream failure."
-    */
-    AVCEnc_Status ce_TotalCoeffTrailingOnes(AVCEncBitstream *stream, int TrailingOnes, int TotalCoeff, int nC);
-
-    /**
-    This function encodes trailing ones and total coefficient for chroma DC block.
-    \param "stream" "Pointer to the AVCEncBitstream."
-    \param "TrailingOnes"   "The trailing one variable output."
-    \param "TotalCoeff" "The total coefficient variable output."
-    \return "AVCENC_SUCCESS for success or else for bitstream failure."
-    */
-    AVCEnc_Status ce_TotalCoeffTrailingOnesChromaDC(AVCEncBitstream *stream, int TrailingOnes, int TotalCoeff);
-
-    /**
-    This function encodes total_zeros value as in Table 9-7 and 9-8.
-    \param "stream" "Pointer to the AVCEncBitstream."
-    \param "TotalZeros" "The total_zeros value."
-    \param "TotalCoeff" "The total coefficient variable output."
-    \return "AVCENC_SUCCESS for success or else for bitstream failure."
-    */
-    AVCEnc_Status ce_TotalZeros(AVCEncBitstream *stream, int total_zeros, int TotalCoeff);
-
-    /**
-    This function encodes total_zeros VLC syntax for chroma DC as in Table 9-9.
-    \param "stream" "Pointer to the AVCEncBitstream."
-    \param "TotalZeros" "The total_zeros value."
-    \param "TotalCoeff" "The total coefficient variable output."
-    \return "AVCENC_SUCCESS for success or else for bitstream failure."
-    */
-    AVCEnc_Status ce_TotalZerosChromaDC(AVCEncBitstream *stream, int total_zeros, int TotalCoeff);
-
-    /**
-    This function encodes run_before VLC syntax as in Table 9-10.
-    \param "stream" "Pointer to the AVCEncBitstream."
-    \param "run_before" "The run_before value."
-    \param "zerosLeft"  "The context for number of zeros left."
-    \return "AVCENC_SUCCESS for success or else for bitstream failure."
-    */
-    AVCEnc_Status ce_RunBefore(AVCEncBitstream *stream, int run_before, int zerosLeft);
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* _AVCENC_LIB_H_ */
-
diff --git a/media/libstagefright/codecs/avc/enc/src/bitstream_io.cpp b/media/libstagefright/codecs/avc/enc/src/bitstream_io.cpp
deleted file mode 100644
index d71c327..0000000
--- a/media/libstagefright/codecs/avc/enc/src/bitstream_io.cpp
+++ /dev/null
@@ -1,339 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-
-#define WORD_SIZE 32
-
-/* array for trailing bit pattern as function of number of bits */
-/* the first one is unused. */
-const static uint8 trailing_bits[9] = {0, 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80};
-
-/* ======================================================================== */
-/*  Function : BitstreamInit()                                              */
-/*  Date     : 11/4/2003                                                    */
-/*  Purpose  : Populate bitstream structure with bitstream buffer and size  */
-/*             it also initializes internal data                            */
-/*  In/out   :                                                              */
-/*  Return   : AVCENC_SUCCESS if successed, AVCENC_FAIL if failed.              */
-/*  Modified :                                                              */
-/* ======================================================================== */
-/* |--------|--------|----~~~~~-----|---------|---------|---------|
-   ^                                          ^write_pos          ^buf_size
-   bitstreamBuffer                  <--------->
-                                    current_word
-
-   |-----xxxxxxxxxxxxx|  = current_word 32 or 16 bits
-    <---->
-     bit_left
- ======================================================================== */
-
-AVCEnc_Status BitstreamEncInit(AVCEncBitstream *stream, uint8 *buffer, int buf_size,
-                               uint8 *overrunBuffer, int oBSize)
-{
-    if (stream == NULL || buffer == NULL || buf_size <= 0)
-    {
-        return AVCENC_BITSTREAM_INIT_FAIL;
-    }
-
-    stream->bitstreamBuffer = buffer;
-
-    stream->buf_size = buf_size;
-
-    stream->write_pos = 0;
-
-    stream->count_zeros = 0;
-
-    stream->current_word = 0;
-
-    stream->bit_left = WORD_SIZE;
-
-    stream->overrunBuffer = overrunBuffer;
-
-    stream->oBSize = oBSize;
-
-    return AVCENC_SUCCESS;
-}
-
-/* ======================================================================== */
-/*  Function : AVCBitstreamSaveWord()                                           */
-/*  Date     : 3/29/2004                                                    */
-/*  Purpose  : Save the current_word into the buffer, byte-swap, and        */
-/*              add emulation prevention insertion.                         */
-/*  In/out   :                                                              */
-/*  Return   : AVCENC_SUCCESS if successed, AVCENC_WRITE_FAIL if buffer is  */
-/*              full.                                                       */
-/*  Modified :                                                              */
-/* ======================================================================== */
-AVCEnc_Status AVCBitstreamSaveWord(AVCEncBitstream *stream)
-{
-    int num_bits;
-    uint8 *write_pnt, byte;
-    uint current_word;
-
-    /* check number of bytes in current_word, must always be byte-aligned!!!! */
-    num_bits = WORD_SIZE - stream->bit_left; /* must be multiple of 8 !!*/
-
-    if (stream->buf_size - stream->write_pos <= (num_bits >> 3) + 2) /* 2 more bytes for possible EPBS */
-    {
-        if (AVCENC_SUCCESS != AVCBitstreamUseOverrunBuffer(stream, (num_bits >> 3) + 2))
-        {
-            return AVCENC_BITSTREAM_BUFFER_FULL;
-        }
-    }
-
-    /* write word, byte-by-byte */
-    write_pnt = stream->bitstreamBuffer + stream->write_pos;
-    current_word = stream->current_word;
-    while (num_bits) /* no need to check stream->buf_size and stream->write_pos, taken care already */
-    {
-        num_bits -= 8;
-        byte = (current_word >> num_bits) & 0xFF;
-        if (stream->count_zeros == 2)
-        {   /* for num_bits = 32, this can add 2 more bytes extra for EPBS */
-            if (byte <= 3)
-            {
-                *write_pnt++ = 0x3;
-                stream->write_pos++;
-                stream->count_zeros = 0;
-            }
-        }
-        if (byte != 0)
-        {
-            *write_pnt++ = byte;
-            stream->write_pos++;
-            stream->count_zeros = 0;
-        }
-        else
-        {
-            stream->count_zeros++;
-            *write_pnt++ = byte;
-            stream->write_pos++;
-        }
-    }
-
-    /* reset current_word and bit_left */
-    stream->current_word = 0;
-    stream->bit_left = WORD_SIZE;
-
-    return AVCENC_SUCCESS;
-}
-
-/* ======================================================================== */
-/*  Function : BitstreamWriteBits()                                         */
-/*  Date     : 3/29/2004                                                    */
-/*  Purpose  : Write up to machine word.                                    */
-/*  In/out   : Unused bits in 'code' must be all zeros.                     */
-/*  Return   : AVCENC_SUCCESS if successed, AVCENC_WRITE_FAIL if buffer is  */
-/*              full.                                                       */
-/*  Modified :                                                              */
-/* ======================================================================== */
-AVCEnc_Status BitstreamWriteBits(AVCEncBitstream *stream, int nBits, uint code)
-{
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    int bit_left = stream->bit_left;
-    uint current_word = stream->current_word;
-
-    //DEBUG_LOG(userData,AVC_LOGTYPE_INFO,"BitstreamWriteBits",nBits,-1);
-
-    if (nBits > WORD_SIZE) /* has to be taken care of specially */
-    {
-        return AVCENC_FAIL; /* for now */
-        /* otherwise, break it down to 2 write of less than 16 bits at a time. */
-    }
-
-    if (nBits <= bit_left) /* more bits left in current_word */
-    {
-        stream->current_word = (current_word << nBits) | code;
-        stream->bit_left -= nBits;
-        if (stream->bit_left == 0) /* prepare for the next word */
-        {
-            status = AVCBitstreamSaveWord(stream);
-            return status;
-        }
-    }
-    else
-    {
-        stream->current_word = (current_word << bit_left) | (code >> (nBits - bit_left));
-
-        nBits -= bit_left;
-
-        stream->bit_left = 0;
-
-        status = AVCBitstreamSaveWord(stream); /* save current word */
-
-        stream->bit_left = WORD_SIZE - nBits;
-
-        stream->current_word = code; /* no extra masking for code, must be handled before saving */
-    }
-
-    return status;
-}
-
-
-/* ======================================================================== */
-/*  Function : BitstreamWrite1Bit()                                         */
-/*  Date     : 3/30/2004                                                    */
-/*  Purpose  : Write 1 bit                                                  */
-/*  In/out   : Unused bits in 'code' must be all zeros.                     */
-/*  Return   : AVCENC_SUCCESS if successed, AVCENC_WRITE_FAIL if buffer is  */
-/*              full.                                                       */
-/*  Modified :                                                              */
-/* ======================================================================== */
-AVCEnc_Status BitstreamWrite1Bit(AVCEncBitstream *stream, uint code)
-{
-    AVCEnc_Status status;
-    uint current_word = stream->current_word;
-
-    //DEBUG_LOG(userData,AVC_LOGTYPE_INFO,"BitstreamWrite1Bit",code,-1);
-
-    //if(1 <= bit_left) /* more bits left in current_word */
-    /* we can assume that there always be positive bit_left in the current word */
-    stream->current_word = (current_word << 1) | code;
-    stream->bit_left--;
-    if (stream->bit_left == 0) /* prepare for the next word */
-    {
-        status = AVCBitstreamSaveWord(stream);
-        return status;
-    }
-
-    return AVCENC_SUCCESS;
-}
-
-
-/* ======================================================================== */
-/*  Function : BitstreamTrailingBits()                                      */
-/*  Date     : 3/31/2004                                                    */
-/*  Purpose  : Add trailing bits and report the final EBSP size.            */
-/*  In/out   :                                                              */
-/*  Return   : AVCENC_SUCCESS if successed, AVCENC_WRITE_FAIL if buffer is  */
-/*              full.                                                       */
-/*  Modified :                                                              */
-/* ======================================================================== */
-AVCEnc_Status BitstreamTrailingBits(AVCEncBitstream *bitstream, uint *nal_size)
-{
-    (void)(nal_size);
-
-    AVCEnc_Status status;
-    int bit_left = bitstream->bit_left;
-
-    bit_left &= 0x7; /* modulo by 8 */
-    if (bit_left == 0) bit_left = 8;
-    /* bitstream->bit_left == 0 cannot happen here since it would have been Saved already */
-
-    status = BitstreamWriteBits(bitstream, bit_left, trailing_bits[bit_left]);
-
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    /* if it's not saved, save it. */
-    //if(bitstream->bit_left<(WORD_SIZE<<3)) /* in fact, no need to check */
-    {
-        status = AVCBitstreamSaveWord(bitstream);
-    }
-
-    return status;
-}
-
-/* check whether it's byte-aligned */
-bool byte_aligned(AVCEncBitstream *stream)
-{
-    if (stream->bit_left % 8)
-        return false;
-    else
-        return true;
-}
-
-
-/* determine whether overrun buffer can be used or not */
-AVCEnc_Status AVCBitstreamUseOverrunBuffer(AVCEncBitstream* stream, int numExtraBytes)
-{
-    AVCEncObject *encvid = (AVCEncObject*)stream->encvid;
-
-    if (stream->overrunBuffer != NULL) // overrunBuffer is set
-    {
-        if (stream->bitstreamBuffer != stream->overrunBuffer) // not already used
-        {
-            if (stream->write_pos + numExtraBytes >= stream->oBSize)
-            {
-                stream->oBSize = stream->write_pos + numExtraBytes + 100;
-                stream->oBSize &= (~0x3); // make it multiple of 4
-
-                // allocate new overrun Buffer
-                if (encvid->overrunBuffer)
-                {
-                    encvid->avcHandle->CBAVC_Free(encvid->avcHandle->userData,
-                                                  encvid->overrunBuffer);
-                }
-
-                encvid->oBSize = stream->oBSize;
-                encvid->overrunBuffer = (uint8*) encvid->avcHandle->CBAVC_Malloc(encvid->avcHandle->userData,
-                                        stream->oBSize, DEFAULT_ATTR);
-
-                stream->overrunBuffer = encvid->overrunBuffer;
-                if (stream->overrunBuffer == NULL)
-                {
-                    return AVCENC_FAIL;
-                }
-            }
-
-            // copy everything to overrun buffer and start using it.
-            memcpy(stream->overrunBuffer, stream->bitstreamBuffer, stream->write_pos);
-            stream->bitstreamBuffer = stream->overrunBuffer;
-            stream->buf_size = stream->oBSize;
-        }
-        else // overrun buffer is already used
-        {
-            stream->oBSize = stream->write_pos + numExtraBytes + 100;
-            stream->oBSize &= (~0x3); // make it multiple of 4
-
-            // allocate new overrun buffer
-            encvid->oBSize = stream->oBSize;
-            encvid->overrunBuffer = (uint8*) encvid->avcHandle->CBAVC_Malloc(encvid->avcHandle->userData,
-                                    stream->oBSize, DEFAULT_ATTR);
-
-            if (encvid->overrunBuffer == NULL)
-            {
-                return AVCENC_FAIL;
-            }
-
-
-            // copy from the old buffer to new buffer
-            memcpy(encvid->overrunBuffer, stream->overrunBuffer, stream->write_pos);
-            // free old buffer
-            encvid->avcHandle->CBAVC_Free(encvid->avcHandle->userData,
-                                          stream->overrunBuffer);
-
-            // assign pointer to new buffer
-            stream->overrunBuffer = encvid->overrunBuffer;
-            stream->bitstreamBuffer = stream->overrunBuffer;
-            stream->buf_size = stream->oBSize;
-        }
-
-        return AVCENC_SUCCESS;
-    }
-    else // overrunBuffer is not enable.
-    {
-        return AVCENC_FAIL;
-    }
-
-}
-
-
-
diff --git a/media/libstagefright/codecs/avc/enc/src/block.cpp b/media/libstagefright/codecs/avc/enc/src/block.cpp
deleted file mode 100644
index 01e26a6..0000000
--- a/media/libstagefright/codecs/avc/enc/src/block.cpp
+++ /dev/null
@@ -1,1283 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-
-/* subtract with the prediction and do transformation */
-void trans(uint8 *cur, int pitch, uint8 *predBlock, int16 *dataBlock)
-{
-    int16 *ptr = dataBlock;
-    int r0, r1, r2, r3, j;
-    int curpitch = (uint)pitch >> 16;
-    int predpitch = (pitch & 0xFFFF);
-
-    /* horizontal */
-    j = 4;
-    while (j > 0)
-    {
-        /* calculate the residue first */
-        r0 = cur[0] - predBlock[0];
-        r1 = cur[1] - predBlock[1];
-        r2 = cur[2] - predBlock[2];
-        r3 = cur[3] - predBlock[3];
-
-        r0 += r3;           //ptr[0] + ptr[3];
-        r3 = r0 - (r3 << 1);    //ptr[0] - ptr[3];
-        r1 += r2;           //ptr[1] + ptr[2];
-        r2 = r1 - (r2 << 1);    //ptr[1] - ptr[2];
-
-        ptr[0] = r0 + r1;
-        ptr[2] = r0 - r1;
-        ptr[1] = (r3 << 1) + r2;
-        ptr[3] = r3 - (r2 << 1);
-
-        ptr += 16;
-        predBlock += predpitch;
-        cur += curpitch;
-        j--;
-    }
-    /* vertical */
-    ptr = dataBlock;
-    j = 4;
-    while (j > 0)
-    {
-        r0 = ptr[0] + ptr[48];
-        r3 = ptr[0] - ptr[48];
-        r1 = ptr[16] + ptr[32];
-        r2 = ptr[16] - ptr[32];
-
-        ptr[0] = r0 + r1;
-        ptr[32] = r0 - r1;
-        ptr[16] = (r3 << 1) + r2;
-        ptr[48] = r3 - (r2 << 1);
-
-        ptr++;
-        j--;
-    }
-
-    return ;
-}
-
-
-/* do residue transform quant invquant, invtrans and write output out */
-int dct_luma(AVCEncObject *encvid, int blkidx, uint8 *cur, uint8 *org, int *coef_cost)
-{
-    AVCCommonObj *video = encvid->common;
-    int org_pitch = encvid->currInput->pitch;
-    int pitch = video->currPic->pitch;
-    int16 *coef = video->block;
-    uint8 *pred = video->pred_block; // size 16 for a 4x4 block
-    int pred_pitch = video->pred_pitch;
-    int r0, r1, r2, r3, j, k, idx;
-    int *level, *run;
-    int Qq, Rq, q_bits, qp_const, quant;
-    int data, lev, zero_run;
-    int numcoeff;
-
-    coef += ((blkidx & 0x3) << 2) + ((blkidx >> 2) << 6); /* point to the 4x4 block */
-
-    /* first take a 4x4 transform */
-    /* horizontal */
-    j = 4;
-    while (j > 0)
-    {
-        /* calculate the residue first */
-        r0 = org[0] - pred[0];   /* OPTIMIZEABLE */
-        r1 = org[1] - pred[1];
-        r2 = org[2] - pred[2];
-        r3 = org[3] - pred[3];
-
-        r0 += r3;           //ptr[0] + ptr[3];
-        r3 = r0 - (r3 << 1);    //ptr[0] - ptr[3];
-        r1 += r2;           //ptr[1] + ptr[2];
-        r2 = r1 - (r2 << 1);    //ptr[1] - ptr[2];
-
-        coef[0] = r0 + r1;
-        coef[2] = r0 - r1;
-        coef[1] = (r3 << 1) + r2;
-        coef[3] = r3 - (r2 << 1);
-
-        coef += 16;
-        org += org_pitch;
-        pred += pred_pitch;
-        j--;
-    }
-    /* vertical */
-    coef -= 64;
-    pred -= (pred_pitch << 2);
-    j = 4;
-    while (j > 0)   /* OPTIMIZABLE */
-    {
-        r0 = coef[0] + coef[48];
-        r3 = coef[0] - coef[48];
-        r1 = coef[16] + coef[32];
-        r2 = coef[16] - coef[32];
-
-        coef[0] = r0 + r1;
-        coef[32] = r0 - r1;
-        coef[16] = (r3 << 1) + r2;
-        coef[48] = r3 - (r2 << 1);
-
-        coef++;
-        j--;
-    }
-
-    coef -= 4;
-
-    /* quant */
-    level = encvid->level[ras2dec[blkidx]];
-    run = encvid->run[ras2dec[blkidx]];
-
-    Rq = video->QPy_mod_6;
-    Qq = video->QPy_div_6;
-    qp_const = encvid->qp_const;
-    q_bits = 15 + Qq;
-
-    zero_run = 0;
-    numcoeff = 0;
-    for (k = 0; k < 16; k++)
-    {
-        idx = ZZ_SCAN_BLOCK[k]; /* map back to raster scan order */
-        data = coef[idx];
-        quant = quant_coef[Rq][k];
-        if (data > 0)
-        {
-            lev = data * quant + qp_const;
-        }
-        else
-        {
-            lev = -data * quant + qp_const;
-        }
-        lev >>= q_bits;
-        if (lev)
-        {
-            *coef_cost += ((lev > 1) ? MAX_VALUE : COEFF_COST[DISABLE_THRESHOLDING][zero_run]);
-
-            /* dequant */
-            quant = dequant_coefres[Rq][k];
-            if (data > 0)
-            {
-                level[numcoeff] = lev;
-                coef[idx] = (lev * quant) << Qq;
-            }
-            else
-            {
-                level[numcoeff] = -lev;
-                coef[idx] = (-lev * quant) << Qq;
-            }
-            run[numcoeff++] = zero_run;
-            zero_run = 0;
-        }
-        else
-        {
-            zero_run++;
-            coef[idx] = 0;
-        }
-    }
-
-    if (video->currMB->mb_intra) // only do inverse transform with intra block
-    {
-        if (numcoeff) /* then do inverse transform */
-        {
-            for (j = 4; j > 0; j--) /* horizontal */
-            {
-                r0 = coef[0] + coef[2];
-                r1 = coef[0] - coef[2];
-                r2 = (coef[1] >> 1) - coef[3];
-                r3 = coef[1] + (coef[3] >> 1);
-
-                coef[0] = r0 + r3;
-                coef[1] = r1 + r2;
-                coef[2] = r1 - r2;
-                coef[3] = r0 - r3;
-
-                coef += 16;
-            }
-
-            coef -= 64;
-            for (j = 4; j > 0; j--) /* vertical, has to be done after horizontal */
-            {
-                r0 = coef[0] + coef[32];
-                r1 = coef[0] - coef[32];
-                r2 = (coef[16] >> 1) - coef[48];
-                r3 = coef[16] + (coef[48] >> 1);
-                r0 += r3;
-                r3 = (r0 - (r3 << 1)); /* r0-r3 */
-                r1 += r2;
-                r2 = (r1 - (r2 << 1)); /* r1-r2 */
-                r0 += 32;
-                r1 += 32;
-                r2 += 32;
-                r3 += 32;
-
-                r0 = pred[0] + (r0 >> 6);
-                if ((uint)r0 > 0xFF)   r0 = 0xFF & (~(r0 >> 31));  /* clip */
-                r1 = *(pred += pred_pitch) + (r1 >> 6);
-                if ((uint)r1 > 0xFF)   r1 = 0xFF & (~(r1 >> 31));  /* clip */
-                r2 = *(pred += pred_pitch) + (r2 >> 6);
-                if ((uint)r2 > 0xFF)   r2 = 0xFF & (~(r2 >> 31));  /* clip */
-                r3 = pred[pred_pitch] + (r3 >> 6);
-                if ((uint)r3 > 0xFF)   r3 = 0xFF & (~(r3 >> 31));  /* clip */
-
-                *cur = r0;
-                *(cur += pitch) = r1;
-                *(cur += pitch) = r2;
-                cur[pitch] = r3;
-                cur -= (pitch << 1);
-                cur++;
-                pred -= (pred_pitch << 1);
-                pred++;
-                coef++;
-            }
-        }
-        else  // copy from pred to cur
-        {
-            *((uint32*)cur) = *((uint32*)pred);
-            *((uint32*)(cur += pitch)) = *((uint32*)(pred += pred_pitch));
-            *((uint32*)(cur += pitch)) = *((uint32*)(pred += pred_pitch));
-            *((uint32*)(cur += pitch)) = *((uint32*)(pred += pred_pitch));
-        }
-    }
-
-    return numcoeff;
-}
-
-
-void MBInterIdct(AVCCommonObj *video, uint8 *curL, AVCMacroblock *currMB, int picPitch)
-{
-    int16 *coef, *coef8 = video->block;
-    uint8 *cur;  // the same as curL
-    int b8, b4;
-    int r0, r1, r2, r3, j, blkidx;
-
-    for (b8 = 0; b8 < 4; b8++)
-    {
-        cur = curL;
-        coef = coef8;
-
-        if (currMB->CBP&(1 << b8))
-        {
-            for (b4 = 0; b4 < 4; b4++)
-            {
-                blkidx = blkIdx2blkXY[b8][b4];
-                /* do IDCT */
-                if (currMB->nz_coeff[blkidx])
-                {
-                    for (j = 4; j > 0; j--) /* horizontal */
-                    {
-                        r0 = coef[0] + coef[2];
-                        r1 = coef[0] - coef[2];
-                        r2 = (coef[1] >> 1) - coef[3];
-                        r3 = coef[1] + (coef[3] >> 1);
-
-                        coef[0] = r0 + r3;
-                        coef[1] = r1 + r2;
-                        coef[2] = r1 - r2;
-                        coef[3] = r0 - r3;
-
-                        coef += 16;
-                    }
-
-                    coef -= 64;
-                    for (j = 4; j > 0; j--) /* vertical, has to be done after horizontal */
-                    {
-                        r0 = coef[0] + coef[32];
-                        r1 = coef[0] - coef[32];
-                        r2 = (coef[16] >> 1) - coef[48];
-                        r3 = coef[16] + (coef[48] >> 1);
-                        r0 += r3;
-                        r3 = (r0 - (r3 << 1)); /* r0-r3 */
-                        r1 += r2;
-                        r2 = (r1 - (r2 << 1)); /* r1-r2 */
-                        r0 += 32;
-                        r1 += 32;
-                        r2 += 32;
-                        r3 += 32;
-
-                        r0 = cur[0] + (r0 >> 6);
-                        if ((uint)r0 > 0xFF)   r0 = 0xFF & (~(r0 >> 31));  /* clip */
-                        *cur = r0;
-                        r1 = *(cur += picPitch) + (r1 >> 6);
-                        if ((uint)r1 > 0xFF)   r1 = 0xFF & (~(r1 >> 31));  /* clip */
-                        *cur = r1;
-                        r2 = *(cur += picPitch) + (r2 >> 6);
-                        if ((uint)r2 > 0xFF)   r2 = 0xFF & (~(r2 >> 31));  /* clip */
-                        *cur = r2;
-                        r3 = cur[picPitch] + (r3 >> 6);
-                        if ((uint)r3 > 0xFF)   r3 = 0xFF & (~(r3 >> 31));  /* clip */
-                        cur[picPitch] = r3;
-
-                        cur -= (picPitch << 1);
-                        cur++;
-                        coef++;
-                    }
-                    cur -= 4;
-                    coef -= 4;
-                }
-                if (b4&1)
-                {
-                    cur += ((picPitch << 2) - 4);
-                    coef += 60;
-                }
-                else
-                {
-                    cur += 4;
-                    coef += 4;
-                }
-            }
-        }
-
-        if (b8&1)
-        {
-            curL += ((picPitch << 3) - 8);
-            coef8 += 120;
-        }
-        else
-        {
-            curL += 8;
-            coef8 += 8;
-        }
-    }
-
-    return ;
-}
-
-/* performa dct, quant, iquant, idct for the entire MB */
-void dct_luma_16x16(AVCEncObject *encvid, uint8 *curL, uint8 *orgL)
-{
-    AVCCommonObj *video = encvid->common;
-    int pitch = video->currPic->pitch;
-    int org_pitch = encvid->currInput->pitch;
-    AVCMacroblock *currMB = video->currMB;
-    int16 *coef = video->block;
-    uint8 *pred = encvid->pred_i16[currMB->i16Mode];
-    int blk_x, blk_y, j, k, idx, b8, b4;
-    int r0, r1, r2, r3, m0, m1, m2 , m3;
-    int data, lev;
-    int *level, *run, zero_run, ncoeff;
-    int Rq, Qq, quant, q_bits, qp_const;
-    int offset_cur[4], offset_pred[4], offset;
-
-    /* horizontal */
-    for (j = 16; j > 0; j--)
-    {
-        for (blk_x = 4; blk_x > 0; blk_x--)
-        {
-            /* calculate the residue first */
-            r0 = *orgL++ - *pred++;
-            r1 = *orgL++ - *pred++;
-            r2 = *orgL++ - *pred++;
-            r3 = *orgL++ - *pred++;
-
-            r0 += r3;           //ptr[0] + ptr[3];
-            r3 = r0 - (r3 << 1);    //ptr[0] - ptr[3];
-            r1 += r2;           //ptr[1] + ptr[2];
-            r2 = r1 - (r2 << 1);    //ptr[1] - ptr[2];
-
-            *coef++ = r0 + r1;
-            *coef++ = (r3 << 1) + r2;
-            *coef++ = r0 - r1;
-            *coef++ = r3 - (r2 << 1);
-        }
-        orgL += (org_pitch - 16);
-    }
-    pred -= 256;
-    coef -= 256;
-    /* vertical */
-    for (blk_y = 4; blk_y > 0; blk_y--)
-    {
-        for (j = 16; j > 0; j--)
-        {
-            r0 = coef[0] + coef[48];
-            r3 = coef[0] - coef[48];
-            r1 = coef[16] + coef[32];
-            r2 = coef[16] - coef[32];
-
-            coef[0] = r0 + r1;
-            coef[32] = r0 - r1;
-            coef[16] = (r3 << 1) + r2;
-            coef[48] = r3 - (r2 << 1);
-
-            coef++;
-        }
-        coef += 48;
-    }
-
-    /* then perform DC transform */
-    coef -= 256;
-    for (j = 4; j > 0; j--)
-    {
-        r0 = coef[0] + coef[12];
-        r3 = coef[0] - coef[12];
-        r1 = coef[4] + coef[8];
-        r2 = coef[4] - coef[8];
-
-        coef[0] = r0 + r1;
-        coef[8] = r0 - r1;
-        coef[4] = r3 + r2;
-        coef[12] = r3 - r2;
-        coef += 64;
-    }
-    coef -= 256;
-    for (j = 4; j > 0; j--)
-    {
-        r0 = coef[0] + coef[192];
-        r3 = coef[0] - coef[192];
-        r1 = coef[64] + coef[128];
-        r2 = coef[64] - coef[128];
-
-        coef[0] = (r0 + r1) >> 1;
-        coef[128] = (r0 - r1) >> 1;
-        coef[64] = (r3 + r2) >> 1;
-        coef[192] = (r3 - r2) >> 1;
-        coef += 4;
-    }
-
-    coef -= 16;
-    // then quantize DC
-    level = encvid->leveldc;
-    run = encvid->rundc;
-
-    Rq = video->QPy_mod_6;
-    Qq = video->QPy_div_6;
-    quant = quant_coef[Rq][0];
-    q_bits = 15 + Qq;
-    qp_const = encvid->qp_const;
-
-    zero_run = 0;
-    ncoeff = 0;
-    for (k = 0; k < 16; k++) /* in zigzag scan order */
-    {
-        idx = ZIGZAG2RASTERDC[k];
-        data = coef[idx];
-        if (data > 0)   // quant
-        {
-            lev = data * quant + (qp_const << 1);
-        }
-        else
-        {
-            lev = -data * quant + (qp_const << 1);
-        }
-        lev >>= (q_bits + 1);
-        if (lev) // dequant
-        {
-            if (data > 0)
-            {
-                level[ncoeff] = lev;
-                coef[idx] = lev;
-            }
-            else
-            {
-                level[ncoeff] = -lev;
-                coef[idx] = -lev;
-            }
-            run[ncoeff++] = zero_run;
-            zero_run = 0;
-        }
-        else
-        {
-            zero_run++;
-            coef[idx] = 0;
-        }
-    }
-
-    /* inverse transform DC */
-    encvid->numcoefdc = ncoeff;
-    if (ncoeff)
-    {
-        quant = dequant_coefres[Rq][0];
-
-        for (j = 0; j < 4; j++)
-        {
-            m0 = coef[0] + coef[4];
-            m1 = coef[0] - coef[4];
-            m2 = coef[8] + coef[12];
-            m3 = coef[8] - coef[12];
-
-
-            coef[0] = m0 + m2;
-            coef[4] = m0 - m2;
-            coef[8] = m1 - m3;
-            coef[12] = m1 + m3;
-            coef += 64;
-        }
-
-        coef -= 256;
-
-        if (Qq >= 2)  /* this way should be faster than JM */
-        {           /* they use (((m4*scale)<<(QPy/6))+2)>>2 for both cases. */
-            Qq -= 2;
-            for (j = 0; j < 4; j++)
-            {
-                m0 = coef[0] + coef[64];
-                m1 = coef[0] - coef[64];
-                m2 = coef[128] + coef[192];
-                m3 = coef[128] - coef[192];
-
-                coef[0] = ((m0 + m2) * quant) << Qq;
-                coef[64] = ((m0 - m2) * quant) << Qq;
-                coef[128] = ((m1 - m3) * quant) << Qq;
-                coef[192] = ((m1 + m3) * quant) << Qq;
-                coef += 4;
-            }
-            Qq += 2; /* restore the value */
-        }
-        else
-        {
-            Qq = 2 - Qq;
-            offset = 1 << (Qq - 1);
-
-            for (j = 0; j < 4; j++)
-            {
-                m0 = coef[0] + coef[64];
-                m1 = coef[0] - coef[64];
-                m2 = coef[128] + coef[192];
-                m3 = coef[128] - coef[192];
-
-                coef[0] = (((m0 + m2) * quant + offset) >> Qq);
-                coef[64] = (((m0 - m2) * quant + offset) >> Qq);
-                coef[128] = (((m1 - m3) * quant + offset) >> Qq);
-                coef[192] = (((m1 + m3) * quant + offset) >> Qq);
-                coef += 4;
-            }
-            Qq = 2 - Qq; /* restore the value */
-        }
-        coef -= 16; /* back to the origin */
-    }
-
-    /* now zigzag scan ac coefs, quant, iquant and itrans */
-    run = encvid->run[0];
-    level = encvid->level[0];
-
-    /* offset btw 4x4 block */
-    offset_cur[0] = 0;
-    offset_cur[1] = (pitch << 2) - 8;
-
-    /* offset btw 8x8 block */
-    offset_cur[2] = 8 - (pitch << 3);
-    offset_cur[3] = -8;
-
-    /* similarly for pred */
-    offset_pred[0] = 0;
-    offset_pred[1] = 56;
-    offset_pred[2] = -120;
-    offset_pred[3] = -8;
-
-    currMB->CBP = 0;
-
-    for (b8 = 0; b8 < 4; b8++)
-    {
-        for (b4 = 0; b4 < 4; b4++)
-        {
-
-            zero_run = 0;
-            ncoeff = 0;
-
-            for (k = 1; k < 16; k++)
-            {
-                idx = ZZ_SCAN_BLOCK[k]; /* map back to raster scan order */
-                data = coef[idx];
-                quant = quant_coef[Rq][k];
-                if (data > 0)
-                {
-                    lev = data * quant + qp_const;
-                }
-                else
-                {
-                    lev = -data * quant + qp_const;
-                }
-                lev >>= q_bits;
-                if (lev)
-                {   /* dequant */
-                    quant = dequant_coefres[Rq][k];
-                    if (data > 0)
-                    {
-                        level[ncoeff] = lev;
-                        coef[idx] = (lev * quant) << Qq;
-                    }
-                    else
-                    {
-                        level[ncoeff] = -lev;
-                        coef[idx] = (-lev * quant) << Qq;
-                    }
-                    run[ncoeff++] = zero_run;
-                    zero_run = 0;
-                }
-                else
-                {
-                    zero_run++;
-                    coef[idx] = 0;
-                }
-            }
-
-            currMB->nz_coeff[blkIdx2blkXY[b8][b4]] = ncoeff; /* in raster scan !!! */
-            if (ncoeff)
-            {
-                currMB->CBP |= (1 << b8);
-
-                // do inverse transform here
-                for (j = 4; j > 0; j--)
-                {
-                    r0 = coef[0] + coef[2];
-                    r1 = coef[0] - coef[2];
-                    r2 = (coef[1] >> 1) - coef[3];
-                    r3 = coef[1] + (coef[3] >> 1);
-
-                    coef[0] = r0 + r3;
-                    coef[1] = r1 + r2;
-                    coef[2] = r1 - r2;
-                    coef[3] = r0 - r3;
-
-                    coef += 16;
-                }
-                coef -= 64;
-                for (j = 4; j > 0; j--)
-                {
-                    r0 = coef[0] + coef[32];
-                    r1 = coef[0] - coef[32];
-                    r2 = (coef[16] >> 1) - coef[48];
-                    r3 = coef[16] + (coef[48] >> 1);
-
-                    r0 += r3;
-                    r3 = (r0 - (r3 << 1)); /* r0-r3 */
-                    r1 += r2;
-                    r2 = (r1 - (r2 << 1)); /* r1-r2 */
-                    r0 += 32;
-                    r1 += 32;
-                    r2 += 32;
-                    r3 += 32;
-                    r0 = pred[0] + (r0 >> 6);
-                    if ((uint)r0 > 0xFF)   r0 = 0xFF & (~(r0 >> 31));  /* clip */
-                    r1 = pred[16] + (r1 >> 6);
-                    if ((uint)r1 > 0xFF)   r1 = 0xFF & (~(r1 >> 31));  /* clip */
-                    r2 = pred[32] + (r2 >> 6);
-                    if ((uint)r2 > 0xFF)   r2 = 0xFF & (~(r2 >> 31));  /* clip */
-                    r3 = pred[48] + (r3 >> 6);
-                    if ((uint)r3 > 0xFF)   r3 = 0xFF & (~(r3 >> 31));  /* clip */
-                    *curL = r0;
-                    *(curL += pitch) = r1;
-                    *(curL += pitch) = r2;
-                    curL[pitch] = r3;
-                    curL -= (pitch << 1);
-                    curL++;
-                    pred++;
-                    coef++;
-                }
-            }
-            else  // do DC-only inverse
-            {
-                m0 = coef[0] + 32;
-
-                for (j = 4; j > 0; j--)
-                {
-                    r0 = pred[0] + (m0 >> 6);
-                    if ((uint)r0 > 0xFF)   r0 = 0xFF & (~(r0 >> 31));  /* clip */
-                    r1 = pred[16] + (m0 >> 6);
-                    if ((uint)r1 > 0xFF)   r1 = 0xFF & (~(r1 >> 31));  /* clip */
-                    r2 = pred[32] + (m0 >> 6);
-                    if ((uint)r2 > 0xFF)   r2 = 0xFF & (~(r2 >> 31));  /* clip */
-                    r3 = pred[48] + (m0 >> 6);
-                    if ((uint)r3 > 0xFF)   r3 = 0xFF & (~(r3 >> 31));  /* clip */
-                    *curL = r0;
-                    *(curL += pitch) = r1;
-                    *(curL += pitch) = r2;
-                    curL[pitch] = r3;
-                    curL -= (pitch << 1);
-                    curL++;
-                    pred++;
-                }
-                coef += 4;
-            }
-
-            run += 16;  // follow coding order
-            level += 16;
-            curL += offset_cur[b4&1];
-            pred += offset_pred[b4&1];
-            coef += offset_pred[b4&1];
-        }
-
-        curL += offset_cur[2 + (b8&1)];
-        pred += offset_pred[2 + (b8&1)];
-        coef += offset_pred[2 + (b8&1)];
-    }
-
-    return ;
-}
-
-
-void dct_chroma(AVCEncObject *encvid, uint8 *curC, uint8 *orgC, int cr)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCMacroblock *currMB = video->currMB;
-    int org_pitch = (encvid->currInput->pitch) >> 1;
-    int pitch = (video->currPic->pitch) >> 1;
-    int pred_pitch = 16;
-    int16 *coef = video->block + 256;
-    uint8 *pred = video->pred_block;
-    int j, blk_x, blk_y, k, idx, b4;
-    int r0, r1, r2, r3, m0;
-    int Qq, Rq, qp_const, q_bits, quant;
-    int *level, *run, zero_run, ncoeff;
-    int data, lev;
-    int offset_cur[2], offset_pred[2], offset_coef[2];
-    uint8 nz_temp[4];
-    int  coeff_cost;
-
-    if (cr)
-    {
-        coef += 8;
-        pred += 8;
-    }
-
-    if (currMB->mb_intra == 0) // inter mode
-    {
-        pred = curC;
-        pred_pitch = pitch;
-    }
-
-    /* do 4x4 transform */
-    /* horizontal */
-    for (j = 8; j > 0; j--)
-    {
-        for (blk_x = 2; blk_x > 0; blk_x--)
-        {
-            /* calculate the residue first */
-            r0 = *orgC++ - *pred++;
-            r1 = *orgC++ - *pred++;
-            r2 = *orgC++ - *pred++;
-            r3 = *orgC++ - *pred++;
-
-            r0 += r3;           //ptr[0] + ptr[3];
-            r3 = r0 - (r3 << 1);    //ptr[0] - ptr[3];
-            r1 += r2;           //ptr[1] + ptr[2];
-            r2 = r1 - (r2 << 1);    //ptr[1] - ptr[2];
-
-            *coef++ = r0 + r1;
-            *coef++ = (r3 << 1) + r2;
-            *coef++ = r0 - r1;
-            *coef++ = r3 - (r2 << 1);
-
-        }
-        coef += 8; // coef pitch is 16
-        pred += (pred_pitch - 8); // pred_pitch is 16
-        orgC += (org_pitch - 8);
-    }
-    pred -= (pred_pitch << 3);
-    coef -= 128;
-    /* vertical */
-    for (blk_y = 2; blk_y > 0; blk_y--)
-    {
-        for (j = 8; j > 0; j--)
-        {
-            r0 = coef[0] + coef[48];
-            r3 = coef[0] - coef[48];
-            r1 = coef[16] + coef[32];
-            r2 = coef[16] - coef[32];
-
-            coef[0] = r0 + r1;
-            coef[32] = r0 - r1;
-            coef[16] = (r3 << 1) + r2;
-            coef[48] = r3 - (r2 << 1);
-
-            coef++;
-        }
-        coef += 56;
-    }
-    /* then perform DC transform */
-    coef -= 128;
-
-    /* 2x2 transform of DC components*/
-    r0 = coef[0];
-    r1 = coef[4];
-    r2 = coef[64];
-    r3 = coef[68];
-
-    coef[0] = r0 + r1 + r2 + r3;
-    coef[4] = r0 - r1 + r2 - r3;
-    coef[64] = r0 + r1 - r2 - r3;
-    coef[68] = r0 - r1 - r2 + r3;
-
-    Qq    = video->QPc_div_6;
-    Rq    = video->QPc_mod_6;
-    quant = quant_coef[Rq][0];
-    q_bits    = 15 + Qq;
-    qp_const = encvid->qp_const_c;
-
-    zero_run = 0;
-    ncoeff = 0;
-    run = encvid->runcdc + (cr << 2);
-    level = encvid->levelcdc + (cr << 2);
-
-    /* in zigzag scan order */
-    for (k = 0; k < 4; k++)
-    {
-        idx = ((k >> 1) << 6) + ((k & 1) << 2);
-        data = coef[idx];
-        if (data > 0)
-        {
-            lev = data * quant + (qp_const << 1);
-        }
-        else
-        {
-            lev = -data * quant + (qp_const << 1);
-        }
-        lev >>= (q_bits + 1);
-        if (lev)
-        {
-            if (data > 0)
-            {
-                level[ncoeff] = lev;
-                coef[idx] = lev;
-            }
-            else
-            {
-                level[ncoeff] = -lev;
-                coef[idx] = -lev;
-            }
-            run[ncoeff++] = zero_run;
-            zero_run = 0;
-        }
-        else
-        {
-            zero_run++;
-            coef[idx] = 0;
-        }
-    }
-
-    encvid->numcoefcdc[cr] = ncoeff;
-
-    if (ncoeff)
-    {
-        currMB->CBP |= (1 << 4); // DC present
-        // do inverse transform
-        quant = dequant_coefres[Rq][0];
-
-        r0 = coef[0] + coef[4];
-        r1 = coef[0] - coef[4];
-        r2 = coef[64] + coef[68];
-        r3 = coef[64] - coef[68];
-
-        r0 += r2;
-        r2 = r0 - (r2 << 1);
-        r1 += r3;
-        r3 = r1 - (r3 << 1);
-
-        if (Qq >= 1)
-        {
-            Qq -= 1;
-            coef[0] = (r0 * quant) << Qq;
-            coef[4] = (r1 * quant) << Qq;
-            coef[64] = (r2 * quant) << Qq;
-            coef[68] = (r3 * quant) << Qq;
-            Qq++;
-        }
-        else
-        {
-            coef[0] = (r0 * quant) >> 1;
-            coef[4] = (r1 * quant) >> 1;
-            coef[64] = (r2 * quant) >> 1;
-            coef[68] = (r3 * quant) >> 1;
-        }
-    }
-
-    /* now do AC zigzag scan, quant, iquant and itrans */
-    if (cr)
-    {
-        run = encvid->run[20];
-        level = encvid->level[20];
-    }
-    else
-    {
-        run = encvid->run[16];
-        level = encvid->level[16];
-    }
-
-    /* offset btw 4x4 block */
-    offset_cur[0] = 0;
-    offset_cur[1] = (pitch << 2) - 8;
-    offset_pred[0] = 0;
-    offset_pred[1] = (pred_pitch << 2) - 8;
-    offset_coef[0] = 0;
-    offset_coef[1] = 56;
-
-    coeff_cost = 0;
-
-    for (b4 = 0; b4 < 4; b4++)
-    {
-        zero_run = 0;
-        ncoeff = 0;
-        for (k = 1; k < 16; k++) /* in zigzag scan order */
-        {
-            idx = ZZ_SCAN_BLOCK[k]; /* map back to raster scan order */
-            data = coef[idx];
-            quant = quant_coef[Rq][k];
-            if (data > 0)
-            {
-                lev = data * quant + qp_const;
-            }
-            else
-            {
-                lev = -data * quant + qp_const;
-            }
-            lev >>= q_bits;
-            if (lev)
-            {
-                /* for RD performance*/
-                if (lev > 1)
-                    coeff_cost += MAX_VALUE;                // set high cost, shall not be discarded
-                else
-                    coeff_cost += COEFF_COST[DISABLE_THRESHOLDING][zero_run];
-
-                /* dequant */
-                quant = dequant_coefres[Rq][k];
-                if (data > 0)
-                {
-                    level[ncoeff] = lev;
-                    coef[idx] = (lev * quant) << Qq;
-                }
-                else
-                {
-                    level[ncoeff] = -lev;
-                    coef[idx] = (-lev * quant) << Qq;
-                }
-                run[ncoeff++] = zero_run;
-                zero_run = 0;
-            }
-            else
-            {
-                zero_run++;
-                coef[idx] = 0;
-            }
-        }
-
-        nz_temp[b4] = ncoeff; // raster scan
-
-        // just advance the pointers for now, do IDCT later
-        coef += 4;
-        run += 16;
-        level += 16;
-        coef += offset_coef[b4&1];
-    }
-
-    /* rewind the pointers */
-    coef -= 128;
-
-    if (coeff_cost < _CHROMA_COEFF_COST_)
-    {
-        /* if it's not efficient to encode any blocks.
-        Just do DC only */
-        /* We can reset level and run also, but setting nz to zero should be enough. */
-        currMB->nz_coeff[16+(cr<<1)] = 0;
-        currMB->nz_coeff[17+(cr<<1)] = 0;
-        currMB->nz_coeff[20+(cr<<1)] = 0;
-        currMB->nz_coeff[21+(cr<<1)] = 0;
-
-        for (b4 = 0; b4 < 4; b4++)
-        {
-            // do DC-only inverse
-            m0 = coef[0] + 32;
-
-            for (j = 4; j > 0; j--)
-            {
-                r0 = pred[0] + (m0 >> 6);
-                if ((uint)r0 > 0xFF)   r0 = 0xFF & (~(r0 >> 31));  /* clip */
-                r1 = *(pred += pred_pitch) + (m0 >> 6);
-                if ((uint)r1 > 0xFF)   r1 = 0xFF & (~(r1 >> 31));  /* clip */
-                r2 = pred[pred_pitch] + (m0 >> 6);
-                if ((uint)r2 > 0xFF)   r2 = 0xFF & (~(r2 >> 31));  /* clip */
-                r3 = pred[pred_pitch<<1] + (m0 >> 6);
-                if ((uint)r3 > 0xFF)   r3 = 0xFF & (~(r3 >> 31));  /* clip */
-                *curC = r0;
-                *(curC += pitch) = r1;
-                *(curC += pitch) = r2;
-                curC[pitch] = r3;
-                curC -= (pitch << 1);
-                curC++;
-                pred += (1 - pred_pitch);
-            }
-            coef += 4;
-            curC += offset_cur[b4&1];
-            pred += offset_pred[b4&1];
-            coef += offset_coef[b4&1];
-        }
-    }
-    else // not dropping anything, continue with the IDCT
-    {
-        for (b4 = 0; b4 < 4; b4++)
-        {
-            ncoeff = nz_temp[b4] ; // in raster scan
-            currMB->nz_coeff[16+(b4&1)+(cr<<1)+((b4>>1)<<2)] = ncoeff; // in raster scan
-
-            if (ncoeff) // do a check on the nonzero-coeff
-            {
-                currMB->CBP |= (2 << 4);
-
-                // do inverse transform here
-                for (j = 4; j > 0; j--)
-                {
-                    r0 = coef[0] + coef[2];
-                    r1 = coef[0] - coef[2];
-                    r2 = (coef[1] >> 1) - coef[3];
-                    r3 = coef[1] + (coef[3] >> 1);
-
-                    coef[0] = r0 + r3;
-                    coef[1] = r1 + r2;
-                    coef[2] = r1 - r2;
-                    coef[3] = r0 - r3;
-
-                    coef += 16;
-                }
-                coef -= 64;
-                for (j = 4; j > 0; j--)
-                {
-                    r0 = coef[0] + coef[32];
-                    r1 = coef[0] - coef[32];
-                    r2 = (coef[16] >> 1) - coef[48];
-                    r3 = coef[16] + (coef[48] >> 1);
-
-                    r0 += r3;
-                    r3 = (r0 - (r3 << 1)); /* r0-r3 */
-                    r1 += r2;
-                    r2 = (r1 - (r2 << 1)); /* r1-r2 */
-                    r0 += 32;
-                    r1 += 32;
-                    r2 += 32;
-                    r3 += 32;
-                    r0 = pred[0] + (r0 >> 6);
-                    if ((uint)r0 > 0xFF)   r0 = 0xFF & (~(r0 >> 31));  /* clip */
-                    r1 = *(pred += pred_pitch) + (r1 >> 6);
-                    if ((uint)r1 > 0xFF)   r1 = 0xFF & (~(r1 >> 31));  /* clip */
-                    r2 = pred[pred_pitch] + (r2 >> 6);
-                    if ((uint)r2 > 0xFF)   r2 = 0xFF & (~(r2 >> 31));  /* clip */
-                    r3 = pred[pred_pitch<<1] + (r3 >> 6);
-                    if ((uint)r3 > 0xFF)   r3 = 0xFF & (~(r3 >> 31));  /* clip */
-                    *curC = r0;
-                    *(curC += pitch) = r1;
-                    *(curC += pitch) = r2;
-                    curC[pitch] = r3;
-                    curC -= (pitch << 1);
-                    curC++;
-                    pred += (1 - pred_pitch);
-                    coef++;
-                }
-            }
-            else
-            {
-                // do DC-only inverse
-                m0 = coef[0] + 32;
-
-                for (j = 4; j > 0; j--)
-                {
-                    r0 = pred[0] + (m0 >> 6);
-                    if ((uint)r0 > 0xFF)   r0 = 0xFF & (~(r0 >> 31));  /* clip */
-                    r1 = *(pred += pred_pitch) + (m0 >> 6);
-                    if ((uint)r1 > 0xFF)   r1 = 0xFF & (~(r1 >> 31));  /* clip */
-                    r2 = pred[pred_pitch] + (m0 >> 6);
-                    if ((uint)r2 > 0xFF)   r2 = 0xFF & (~(r2 >> 31));  /* clip */
-                    r3 = pred[pred_pitch<<1] + (m0 >> 6);
-                    if ((uint)r3 > 0xFF)   r3 = 0xFF & (~(r3 >> 31));  /* clip */
-                    *curC = r0;
-                    *(curC += pitch) = r1;
-                    *(curC += pitch) = r2;
-                    curC[pitch] = r3;
-                    curC -= (pitch << 1);
-                    curC++;
-                    pred += (1 - pred_pitch);
-                }
-                coef += 4;
-            }
-            curC += offset_cur[b4&1];
-            pred += offset_pred[b4&1];
-            coef += offset_coef[b4&1];
-        }
-    }
-
-    return ;
-}
-
-
-/* only DC transform */
-int TransQuantIntra16DC(AVCEncObject *encvid)
-{
-    AVCCommonObj *video = encvid->common;
-    int16 *block = video->block;
-    int *level = encvid->leveldc;
-    int *run = encvid->rundc;
-    int16 *ptr = block;
-    int r0, r1, r2, r3, j;
-    int Qq = video->QPy_div_6;
-    int Rq = video->QPy_mod_6;
-    int q_bits, qp_const, quant;
-    int data, lev, zero_run;
-    int k, ncoeff, idx;
-
-    /* DC transform */
-    /* horizontal */
-    j = 4;
-    while (j)
-    {
-        r0 = ptr[0] + ptr[12];
-        r3 = ptr[0] - ptr[12];
-        r1 = ptr[4] + ptr[8];
-        r2 = ptr[4] - ptr[8];
-
-        ptr[0] = r0 + r1;
-        ptr[8] = r0 - r1;
-        ptr[4] = r3 + r2;
-        ptr[12] = r3 - r2;
-        ptr += 64;
-        j--;
-    }
-    /* vertical */
-    ptr = block;
-    j = 4;
-    while (j)
-    {
-        r0 = ptr[0] + ptr[192];
-        r3 = ptr[0] - ptr[192];
-        r1 = ptr[64] + ptr[128];
-        r2 = ptr[64] - ptr[128];
-
-        ptr[0] = (r0 + r1) >> 1;
-        ptr[128] = (r0 - r1) >> 1;
-        ptr[64] = (r3 + r2) >> 1;
-        ptr[192] = (r3 - r2) >> 1;
-        ptr += 4;
-        j--;
-    }
-
-    quant = quant_coef[Rq][0];
-    q_bits    = 15 + Qq;
-    qp_const = (1 << q_bits) / 3;    // intra
-
-    zero_run = 0;
-    ncoeff = 0;
-
-    for (k = 0; k < 16; k++) /* in zigzag scan order */
-    {
-        idx = ZIGZAG2RASTERDC[k];
-        data = block[idx];
-        if (data > 0)
-        {
-            lev = data * quant + (qp_const << 1);
-        }
-        else
-        {
-            lev = -data * quant + (qp_const << 1);
-        }
-        lev >>= (q_bits + 1);
-        if (lev)
-        {
-            if (data > 0)
-            {
-                level[ncoeff] = lev;
-                block[idx] = lev;
-            }
-            else
-            {
-                level[ncoeff] = -lev;
-                block[idx] = -lev;
-            }
-            run[ncoeff++] = zero_run;
-            zero_run = 0;
-        }
-        else
-        {
-            zero_run++;
-            block[idx] = 0;
-        }
-    }
-    return ncoeff;
-}
-
-int TransQuantChromaDC(AVCEncObject *encvid, int16 *block, int slice_type, int cr)
-{
-    AVCCommonObj *video = encvid->common;
-    int *level, *run;
-    int r0, r1, r2, r3;
-    int Qq, Rq, q_bits, qp_const, quant;
-    int data, lev, zero_run;
-    int k, ncoeff, idx;
-
-    level = encvid->levelcdc + (cr << 2); /* cb or cr */
-    run = encvid->runcdc + (cr << 2);
-
-    /* 2x2 transform of DC components*/
-    r0 = block[0];
-    r1 = block[4];
-    r2 = block[64];
-    r3 = block[68];
-
-    block[0] = r0 + r1 + r2 + r3;
-    block[4] = r0 - r1 + r2 - r3;
-    block[64] = r0 + r1 - r2 - r3;
-    block[68] = r0 - r1 - r2 + r3;
-
-    Qq    = video->QPc_div_6;
-    Rq    = video->QPc_mod_6;
-    quant = quant_coef[Rq][0];
-    q_bits    = 15 + Qq;
-    if (slice_type == AVC_I_SLICE)
-    {
-        qp_const = (1 << q_bits) / 3;
-    }
-    else
-    {
-        qp_const = (1 << q_bits) / 6;
-    }
-
-    zero_run = 0;
-    ncoeff = 0;
-
-    for (k = 0; k < 4; k++) /* in zigzag scan order */
-    {
-        idx = ((k >> 1) << 6) + ((k & 1) << 2);
-        data = block[idx];
-        if (data > 0)
-        {
-            lev = data * quant + (qp_const << 1);
-        }
-        else
-        {
-            lev = -data * quant + (qp_const << 1);
-        }
-        lev >>= (q_bits + 1);
-        if (lev)
-        {
-            if (data > 0)
-            {
-                level[ncoeff] = lev;
-                block[idx] = lev;
-            }
-            else
-            {
-                level[ncoeff] = -lev;
-                block[idx] = -lev;
-            }
-            run[ncoeff++] = zero_run;
-            zero_run = 0;
-        }
-        else
-        {
-            zero_run++;
-            block[idx] = 0;
-        }
-    }
-    return ncoeff;
-}
-
-
diff --git a/media/libstagefright/codecs/avc/enc/src/findhalfpel.cpp b/media/libstagefright/codecs/avc/enc/src/findhalfpel.cpp
deleted file mode 100644
index d0bbee2..0000000
--- a/media/libstagefright/codecs/avc/enc/src/findhalfpel.cpp
+++ /dev/null
@@ -1,607 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-/* 3/29/01 fast half-pel search based on neighboring guess */
-/* value ranging from 0 to 4, high complexity (more accurate) to
-   low complexity (less accurate) */
-#define HP_DISTANCE_TH      5 // 2  /* half-pel distance threshold */
-
-#define PREF_16_VEC 129     /* 1MV bias versus 4MVs*/
-
-#define CLIP_RESULT(x)      if((uint)x > 0xFF){ \
-                 x = 0xFF & (~(x>>31));}
-
-#define CLIP_UPPER16(x)     if((uint)x >= 0x20000000){ \
-        x = 0xFF0000 & (~(x>>31));} \
-        else { \
-        x = (x>>5)&0xFF0000; \
-        }
-
-/*=====================================================================
-    Function:   AVCFindHalfPelMB
-    Date:       10/31/2007
-    Purpose:    Find half pel resolution MV surrounding the full-pel MV
-=====================================================================*/
-
-int AVCFindHalfPelMB(AVCEncObject *encvid, uint8 *cur, AVCMV *mot, uint8 *ncand,
-                     int xpos, int ypos, int hp_guess, int cmvx, int cmvy)
-{
-    AVCPictureData *currPic = encvid->common->currPic;
-    int lx = currPic->pitch;
-    int d, dmin, satd_min;
-    uint8* cand;
-    int lambda_motion = encvid->lambda_motion;
-    uint8 *mvbits = encvid->mvbits;
-    int mvcost;
-    /* list of candidate to go through for half-pel search*/
-    uint8 *subpel_pred = (uint8*) encvid->subpel_pred; // all 16 sub-pel positions
-    uint8 **hpel_cand = (uint8**) encvid->hpel_cand; /* half-pel position */
-
-    int xh[9] = {0, 0, 2, 2, 2, 0, -2, -2, -2};
-    int yh[9] = {0, -2, -2, 0, 2, 2, 2, 0, -2};
-    int xq[8] = {0, 1, 1, 1, 0, -1, -1, -1};
-    int yq[8] = { -1, -1, 0, 1, 1, 1, 0, -1};
-    int h, hmin, q, qmin;
-
-    OSCL_UNUSED_ARG(xpos);
-    OSCL_UNUSED_ARG(ypos);
-    OSCL_UNUSED_ARG(hp_guess);
-
-    GenerateHalfPelPred(subpel_pred, ncand, lx);
-
-    cur = encvid->currYMB; // pre-load current original MB
-
-    cand = hpel_cand[0];
-
-    // find cost for the current full-pel position
-    dmin = SATD_MB(cand, cur, 65535); // get Hadamaard transform SAD
-    mvcost = MV_COST_S(lambda_motion, mot->x, mot->y, cmvx, cmvy);
-    satd_min = dmin;
-    dmin += mvcost;
-    hmin = 0;
-
-    /* find half-pel */
-    for (h = 1; h < 9; h++)
-    {
-        d = SATD_MB(hpel_cand[h], cur, dmin);
-        mvcost = MV_COST_S(lambda_motion, mot->x + xh[h], mot->y + yh[h], cmvx, cmvy);
-        d += mvcost;
-
-        if (d < dmin)
-        {
-            dmin = d;
-            hmin = h;
-            satd_min = d - mvcost;
-        }
-    }
-
-    mot->sad = dmin;
-    mot->x += xh[hmin];
-    mot->y += yh[hmin];
-    encvid->best_hpel_pos = hmin;
-
-    /*** search for quarter-pel ****/
-    GenerateQuartPelPred(encvid->bilin_base[hmin], &(encvid->qpel_cand[0][0]), hmin);
-
-    encvid->best_qpel_pos = qmin = -1;
-
-    for (q = 0; q < 8; q++)
-    {
-        d = SATD_MB(encvid->qpel_cand[q], cur, dmin);
-        mvcost = MV_COST_S(lambda_motion, mot->x + xq[q], mot->y + yq[q], cmvx, cmvy);
-        d += mvcost;
-        if (d < dmin)
-        {
-            dmin = d;
-            qmin = q;
-            satd_min = d - mvcost;
-        }
-    }
-
-    if (qmin != -1)
-    {
-        mot->sad = dmin;
-        mot->x += xq[qmin];
-        mot->y += yq[qmin];
-        encvid->best_qpel_pos = qmin;
-    }
-
-    return satd_min;
-}
-
-
-
-/** This function generates sub-pel prediction around the full-pel candidate.
-Each sub-pel position array is 20 pixel wide (for word-alignment) and 17 pixel tall. */
-/** The sub-pel position is labeled in spiral manner from the center. */
-
-void GenerateHalfPelPred(uint8* subpel_pred, uint8 *ncand, int lx)
-{
-    /* let's do straightforward way first */
-    uint8 *ref;
-    uint8 *dst;
-    uint8 tmp8;
-    int32 tmp32;
-    int16 tmp_horz[18*22], *dst_16, *src_16;
-    int a = 0, b = 0, c = 0, d = 0, e = 0, f = 0; // temp
-    int i, j;
-
-    /* first copy full-pel to the first array */
-    /* to be optimized later based on byte-offset load */
-    ref = ncand - 3 - lx - (lx << 1); /* move back (-3,-3) */
-    dst = subpel_pred;
-
-    dst -= 4; /* offset */
-    for (j = 0; j < 22; j++) /* 24x22 */
-    {
-        i = 6;
-        while (i > 0)
-        {
-            tmp32 = *ref++;
-            tmp8 = *ref++;
-            tmp32 |= (tmp8 << 8);
-            tmp8 = *ref++;
-            tmp32 |= (tmp8 << 16);
-            tmp8 = *ref++;
-            tmp32 |= (tmp8 << 24);
-            *((uint32*)(dst += 4)) = tmp32;
-            i--;
-        }
-        ref += (lx - 24);
-    }
-
-    /* from the first array, we do horizontal interp */
-    ref = subpel_pred + 2;
-    dst_16 = tmp_horz; /* 17 x 22 */
-
-    for (j = 4; j > 0; j--)
-    {
-        for (i = 16; i > 0; i -= 4)
-        {
-            a = ref[-2];
-            b = ref[-1];
-            c = ref[0];
-            d = ref[1];
-            e = ref[2];
-            f = ref[3];
-            *dst_16++ = a + f - 5 * (b + e) + 20 * (c + d);
-            a = ref[4];
-            *dst_16++ = b + a - 5 * (c + f) + 20 * (d + e);
-            b = ref[5];
-            *dst_16++ = c + b - 5 * (d + a) + 20 * (e + f);
-            c = ref[6];
-            *dst_16++ = d + c - 5 * (e + b) + 20 * (f + a);
-
-            ref += 4;
-        }
-        /* do the 17th column here */
-        d = ref[3];
-        *dst_16 =  e + d - 5 * (f + c) + 20 * (a + b);
-        dst_16 += 2; /* stride for tmp_horz is 18 */
-        ref += 8;  /* stride for ref is 24 */
-        if (j == 3)  // move 18 lines down
-        {
-            dst_16 += 324;//18*18;
-            ref += 432;//18*24;
-        }
-    }
-
-    ref -= 480;//20*24;
-    dst_16 -= 360;//20*18;
-    dst = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE; /* go to the 14th array 17x18*/
-
-    for (j = 18; j > 0; j--)
-    {
-        for (i = 16; i > 0; i -= 4)
-        {
-            a = ref[-2];
-            b = ref[-1];
-            c = ref[0];
-            d = ref[1];
-            e = ref[2];
-            f = ref[3];
-            tmp32 = a + f - 5 * (b + e) + 20 * (c + d);
-            *dst_16++ = tmp32;
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *dst++ = tmp32;
-
-            a = ref[4];
-            tmp32 = b + a - 5 * (c + f) + 20 * (d + e);
-            *dst_16++ = tmp32;
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *dst++ = tmp32;
-
-            b = ref[5];
-            tmp32 = c + b - 5 * (d + a) + 20 * (e + f);
-            *dst_16++ = tmp32;
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *dst++ = tmp32;
-
-            c = ref[6];
-            tmp32 = d + c - 5 * (e + b) + 20 * (f + a);
-            *dst_16++ = tmp32;
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *dst++ = tmp32;
-
-            ref += 4;
-        }
-        /* do the 17th column here */
-        d = ref[3];
-        tmp32 =  e + d - 5 * (f + c) + 20 * (a + b);
-        *dst_16 = tmp32;
-        tmp32 = (tmp32 + 16) >> 5;
-        CLIP_RESULT(tmp32)
-        *dst = tmp32;
-
-        dst += 8;  /* stride for dst is 24 */
-        dst_16 += 2; /* stride for tmp_horz is 18 */
-        ref += 8;  /* stride for ref is 24 */
-    }
-
-
-    /* Do middle point filtering*/
-    src_16 = tmp_horz; /* 17 x 22 */
-    dst = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE; /* 12th array 17x17*/
-    dst -= 24; // offset
-    for (i = 0; i < 17; i++)
-    {
-        for (j = 16; j > 0; j -= 4)
-        {
-            a = *src_16;
-            b = *(src_16 += 18);
-            c = *(src_16 += 18);
-            d = *(src_16 += 18);
-            e = *(src_16 += 18);
-            f = *(src_16 += 18);
-
-            tmp32 = a + f - 5 * (b + e) + 20 * (c + d);
-            tmp32 = (tmp32 + 512) >> 10;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;
-
-            a = *(src_16 += 18);
-            tmp32 = b + a - 5 * (c + f) + 20 * (d + e);
-            tmp32 = (tmp32 + 512) >> 10;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;
-
-            b = *(src_16 += 18);
-            tmp32 = c + b - 5 * (d + a) + 20 * (e + f);
-            tmp32 = (tmp32 + 512) >> 10;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;
-
-            c = *(src_16 += 18);
-            tmp32 = d + c - 5 * (e + b) + 20 * (f + a);
-            tmp32 = (tmp32 + 512) >> 10;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;
-
-            src_16 -= (18 << 2);
-        }
-
-        d = src_16[90]; // 18*5
-        tmp32 = e + d - 5 * (f + c) + 20 * (a + b);
-        tmp32 = (tmp32 + 512) >> 10;
-        CLIP_RESULT(tmp32)
-        dst[24] = tmp32;
-
-        src_16 -= ((18 << 4) - 1);
-        dst -= ((24 << 4) - 1);
-    }
-
-    /* do vertical interpolation */
-    ref = subpel_pred + 2;
-    dst = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE; /* 10th array 18x17 */
-    dst -= 24; // offset
-
-    for (i = 2; i > 0; i--)
-    {
-        for (j = 16; j > 0; j -= 4)
-        {
-            a = *ref;
-            b = *(ref += 24);
-            c = *(ref += 24);
-            d = *(ref += 24);
-            e = *(ref += 24);
-            f = *(ref += 24);
-
-            tmp32 = a + f - 5 * (b + e) + 20 * (c + d);
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;  // 10th
-
-            a = *(ref += 24);
-            tmp32 = b + a - 5 * (c + f) + 20 * (d + e);
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;  // 10th
-
-            b = *(ref += 24);
-            tmp32 = c + b - 5 * (d + a) + 20 * (e + f);
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;  // 10th
-
-            c = *(ref += 24);
-            tmp32 = d + c - 5 * (e + b) + 20 * (f + a);
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;  // 10th
-
-            ref -= (24 << 2);
-        }
-
-        d = ref[120]; // 24*5
-        tmp32 = e + d - 5 * (f + c) + 20 * (a + b);
-        tmp32 = (tmp32 + 16) >> 5;
-        CLIP_RESULT(tmp32)
-        dst[24] = tmp32;  // 10th
-
-        dst -= ((24 << 4) - 1);
-        ref -= ((24 << 4) - 1);
-    }
-
-    // note that using SIMD here doesn't help much, the cycle almost stays the same
-    // one can just use the above code and change the for(i=2 to for(i=18
-    for (i = 16; i > 0; i -= 4)
-    {
-        for (j = 17; j > 0; j--)
-        {
-            a = *((uint32*)ref); /* load 4 bytes */
-            b = (a >> 8) & 0xFF00FF; /* second and fourth byte */
-            a &= 0xFF00FF;
-
-            c = *((uint32*)(ref + 120));
-            d = (c >> 8) & 0xFF00FF;
-            c &= 0xFF00FF;
-
-            a += c;
-            b += d;
-
-            e = *((uint32*)(ref + 72)); /* e, f */
-            f = (e >> 8) & 0xFF00FF;
-            e &= 0xFF00FF;
-
-            c = *((uint32*)(ref + 48)); /* c, d */
-            d = (c >> 8) & 0xFF00FF;
-            c &= 0xFF00FF;
-
-            c += e;
-            d += f;
-
-            a += 20 * c;
-            b += 20 * d;
-            a += 0x100010;
-            b += 0x100010;
-
-            e = *((uint32*)(ref += 24)); /* e, f */
-            f = (e >> 8) & 0xFF00FF;
-            e &= 0xFF00FF;
-
-            c = *((uint32*)(ref + 72)); /* c, d */
-            d = (c >> 8) & 0xFF00FF;
-            c &= 0xFF00FF;
-
-            c += e;
-            d += f;
-
-            a -= 5 * c;
-            b -= 5 * d;
-
-            c = a << 16;
-            d = b << 16;
-            CLIP_UPPER16(a)
-            CLIP_UPPER16(c)
-            CLIP_UPPER16(b)
-            CLIP_UPPER16(d)
-
-            a |= (c >> 16);
-            b |= (d >> 16);
-            //  a>>=5;
-            //  b>>=5;
-            /* clip */
-            //  msk |= b;  msk|=a;
-            //  a &= 0xFF00FF;
-            //  b &= 0xFF00FF;
-            a |= (b << 8);  /* pack it back */
-
-            *((uint16*)(dst += 24)) = a & 0xFFFF; //dst is not word-aligned.
-            *((uint16*)(dst + 2)) = a >> 16;
-
-        }
-        dst -= 404; // 24*17-4
-        ref -= 404;
-        /*      if(msk & 0xFF00FF00) // need clipping
-                {
-                    VertInterpWClip(dst,ref); // re-do 4 column with clip
-                }*/
-    }
-
-    return ;
-}
-
-void VertInterpWClip(uint8 *dst, uint8 *ref)
-{
-    int i, j;
-    int a, b, c, d, e, f;
-    int32 tmp32;
-
-    dst -= 4;
-    ref -= 4;
-
-    for (i = 4; i > 0; i--)
-    {
-        for (j = 16; j > 0; j -= 4)
-        {
-            a = *ref;
-            b = *(ref += 24);
-            c = *(ref += 24);
-            d = *(ref += 24);
-            e = *(ref += 24);
-            f = *(ref += 24);
-
-            tmp32 = a + f - 5 * (b + e) + 20 * (c + d);
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;  // 10th
-
-            a = *(ref += 24);
-            tmp32 = b + a - 5 * (c + f) + 20 * (d + e);
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;  // 10th
-
-            b = *(ref += 24);
-            tmp32 = c + b - 5 * (d + a) + 20 * (e + f);
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;  // 10th
-
-            c = *(ref += 24);
-            tmp32 = d + c - 5 * (e + b) + 20 * (f + a);
-            tmp32 = (tmp32 + 16) >> 5;
-            CLIP_RESULT(tmp32)
-            *(dst += 24) = tmp32;  // 10th
-
-            ref -= (24 << 2);
-        }
-
-        d = ref[120]; // 24*5
-        tmp32 = e + d - 5 * (f + c) + 20 * (a + b);
-        tmp32 = (tmp32 + 16) >> 5;
-        CLIP_RESULT(tmp32)
-        dst[24] = tmp32;  // 10th
-
-        dst -= ((24 << 4) - 1);
-        ref -= ((24 << 4) - 1);
-    }
-
-    return ;
-}
-
-
-void GenerateQuartPelPred(uint8 **bilin_base, uint8 *qpel_cand, int hpel_pos)
-{
-    // for even value of hpel_pos, start with pattern 1, otherwise, start with pattern 2
-    int i, j;
-
-    uint8 *c1 = qpel_cand;
-    uint8 *tl = bilin_base[0];
-    uint8 *tr = bilin_base[1];
-    uint8 *bl = bilin_base[2];
-    uint8 *br = bilin_base[3];
-    int a, b, c, d;
-    int offset = 1 - (384 * 7);
-
-    if (!(hpel_pos&1)) // diamond pattern
-    {
-        j = 16;
-        while (j--)
-        {
-            i = 16;
-            while (i--)
-            {
-                d = tr[24];
-                a = *tr++;
-                b = bl[1];
-                c = *br++;
-
-                *c1 = (c + a + 1) >> 1;
-                *(c1 += 384) = (b + a + 1) >> 1; /* c2 */
-                *(c1 += 384) = (b + c + 1) >> 1; /* c3 */
-                *(c1 += 384) = (b + d + 1) >> 1; /* c4 */
-
-                b = *bl++;
-
-                *(c1 += 384) = (c + d + 1) >> 1;  /* c5 */
-                *(c1 += 384) = (b + d + 1) >> 1;  /* c6 */
-                *(c1 += 384) = (b + c + 1) >> 1;  /* c7 */
-                *(c1 += 384) = (b + a + 1) >> 1;  /* c8 */
-
-                c1 += offset;
-            }
-            // advance to the next line, pitch is 24
-            tl += 8;
-            tr += 8;
-            bl += 8;
-            br += 8;
-            c1 += 8;
-        }
-    }
-    else // star pattern
-    {
-        j = 16;
-        while (j--)
-        {
-            i = 16;
-            while (i--)
-            {
-                a = *br++;
-                b = *tr++;
-                c = tl[1];
-                *c1 = (a + b + 1) >> 1;
-                b = bl[1];
-                *(c1 += 384) = (a + c + 1) >> 1; /* c2 */
-                c = tl[25];
-                *(c1 += 384) = (a + b + 1) >> 1; /* c3 */
-                b = tr[23];
-                *(c1 += 384) = (a + c + 1) >> 1; /* c4 */
-                c = tl[24];
-                *(c1 += 384) = (a + b + 1) >> 1; /* c5 */
-                b = *bl++;
-                *(c1 += 384) = (a + c + 1) >> 1; /* c6 */
-                c = *tl++;
-                *(c1 += 384) = (a + b + 1) >> 1; /* c7 */
-                *(c1 += 384) = (a + c + 1) >> 1; /* c8 */
-
-                c1 += offset;
-            }
-            // advance to the next line, pitch is 24
-            tl += 8;
-            tr += 8;
-            bl += 8;
-            br += 8;
-            c1 += 8;
-        }
-    }
-
-    return ;
-}
-
-
-/* assuming cand always has a pitch of 24 */
-int SATD_MB(uint8 *cand, uint8 *cur, int dmin)
-{
-    int cost;
-
-
-    dmin = (dmin << 16) | 24;
-    cost = AVCSAD_Macroblock_C(cand, cur, dmin, NULL);
-
-    return cost;
-}
-
-
-
-
-
diff --git a/media/libstagefright/codecs/avc/enc/src/header.cpp b/media/libstagefright/codecs/avc/enc/src/header.cpp
deleted file mode 100644
index 9acff9e..0000000
--- a/media/libstagefright/codecs/avc/enc/src/header.cpp
+++ /dev/null
@@ -1,917 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-#include "avcenc_api.h"
-
-/** see subclause 7.4.2.1 */
-/* no need for checking the valid range , already done in SetEncodeParam(),
-if we have to send another SPS, the ranges should be verified first before
-users call PVAVCEncodeSPS() */
-AVCEnc_Status EncodeSPS(AVCEncObject *encvid, AVCEncBitstream *stream)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCSeqParamSet *seqParam = video->currSeqParams;
-    AVCVUIParams *vui = &(seqParam->vui_parameters);
-    int i;
-    AVCEnc_Status status = AVCENC_SUCCESS;
-
-    //DEBUG_LOG(userData,AVC_LOGTYPE_INFO,"EncodeSPS",-1,-1);
-
-    status = BitstreamWriteBits(stream, 8, seqParam->profile_idc);
-    status = BitstreamWrite1Bit(stream, seqParam->constrained_set0_flag);
-    status = BitstreamWrite1Bit(stream, seqParam->constrained_set1_flag);
-    status = BitstreamWrite1Bit(stream, seqParam->constrained_set2_flag);
-    status = BitstreamWrite1Bit(stream, seqParam->constrained_set3_flag);
-    status = BitstreamWriteBits(stream, 4, 0);  /* forbidden zero bits */
-    if (status != AVCENC_SUCCESS)  /* we can check after each write also */
-    {
-        return status;
-    }
-
-    status = BitstreamWriteBits(stream, 8, seqParam->level_idc);
-    status = ue_v(stream, seqParam->seq_parameter_set_id);
-    status = ue_v(stream, seqParam->log2_max_frame_num_minus4);
-    status = ue_v(stream, seqParam->pic_order_cnt_type);
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    if (seqParam->pic_order_cnt_type == 0)
-    {
-        status = ue_v(stream, seqParam->log2_max_pic_order_cnt_lsb_minus4);
-    }
-    else if (seqParam->pic_order_cnt_type == 1)
-    {
-        status = BitstreamWrite1Bit(stream, seqParam->delta_pic_order_always_zero_flag);
-        status = se_v(stream, seqParam->offset_for_non_ref_pic); /* upto 32 bits */
-        status = se_v(stream, seqParam->offset_for_top_to_bottom_field); /* upto 32 bits */
-        status = ue_v(stream, seqParam->num_ref_frames_in_pic_order_cnt_cycle);
-
-        for (i = 0; i < (int)(seqParam->num_ref_frames_in_pic_order_cnt_cycle); i++)
-        {
-            status = se_v(stream, seqParam->offset_for_ref_frame[i]); /* upto 32 bits */
-        }
-    }
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    status = ue_v(stream, seqParam->num_ref_frames);
-    status = BitstreamWrite1Bit(stream, seqParam->gaps_in_frame_num_value_allowed_flag);
-    status = ue_v(stream, seqParam->pic_width_in_mbs_minus1);
-    status = ue_v(stream, seqParam->pic_height_in_map_units_minus1);
-    status = BitstreamWrite1Bit(stream, seqParam->frame_mbs_only_flag);
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-    /* if frame_mbs_only_flag is 0, then write, mb_adaptive_frame_field_frame here */
-
-    status = BitstreamWrite1Bit(stream, seqParam->direct_8x8_inference_flag);
-    status = BitstreamWrite1Bit(stream, seqParam->frame_cropping_flag);
-    if (seqParam->frame_cropping_flag)
-    {
-        status = ue_v(stream, seqParam->frame_crop_left_offset);
-        status = ue_v(stream, seqParam->frame_crop_right_offset);
-        status = ue_v(stream, seqParam->frame_crop_top_offset);
-        status = ue_v(stream, seqParam->frame_crop_bottom_offset);
-    }
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    status = BitstreamWrite1Bit(stream, seqParam->vui_parameters_present_flag);
-    if (seqParam->vui_parameters_present_flag)
-    {
-        /* not supported */
-        //return AVCENC_SPS_FAIL;
-        EncodeVUI(stream, vui);
-    }
-
-    return status;
-}
-
-
-void EncodeVUI(AVCEncBitstream* stream, AVCVUIParams* vui)
-{
-    int temp;
-
-    temp = vui->aspect_ratio_info_present_flag;
-    BitstreamWrite1Bit(stream, temp);
-    if (temp)
-    {
-        BitstreamWriteBits(stream, 8, vui->aspect_ratio_idc);
-        if (vui->aspect_ratio_idc == 255)
-        {
-            BitstreamWriteBits(stream, 16, vui->sar_width);
-            BitstreamWriteBits(stream, 16, vui->sar_height);
-        }
-    }
-    temp = vui->overscan_info_present_flag;
-    BitstreamWrite1Bit(stream, temp);
-    if (temp)
-    {
-        BitstreamWrite1Bit(stream, vui->overscan_appropriate_flag);
-    }
-    temp = vui->video_signal_type_present_flag;
-    BitstreamWrite1Bit(stream, temp);
-    if (temp)
-    {
-        BitstreamWriteBits(stream, 3, vui->video_format);
-        BitstreamWrite1Bit(stream, vui->video_full_range_flag);
-        temp = vui->colour_description_present_flag;
-        BitstreamWrite1Bit(stream, temp);
-        if (temp)
-        {
-            BitstreamWriteBits(stream, 8, vui->colour_primaries);
-            BitstreamWriteBits(stream, 8, vui->transfer_characteristics);
-            BitstreamWriteBits(stream, 8, vui->matrix_coefficients);
-        }
-    }
-    temp = vui->chroma_location_info_present_flag;
-    BitstreamWrite1Bit(stream, temp);
-    if (temp)
-    {
-        ue_v(stream, vui->chroma_sample_loc_type_top_field);
-        ue_v(stream, vui->chroma_sample_loc_type_bottom_field);
-    }
-
-    temp = vui->timing_info_present_flag;
-    BitstreamWrite1Bit(stream, temp);
-    if (temp)
-    {
-        BitstreamWriteBits(stream, 32, vui->num_units_in_tick);
-        BitstreamWriteBits(stream, 32, vui->time_scale);
-        BitstreamWrite1Bit(stream, vui->fixed_frame_rate_flag);
-    }
-
-    temp = vui->nal_hrd_parameters_present_flag;
-    BitstreamWrite1Bit(stream, temp);
-    if (temp)
-    {
-        EncodeHRD(stream, &(vui->nal_hrd_parameters));
-    }
-    temp = vui->vcl_hrd_parameters_present_flag;
-    BitstreamWrite1Bit(stream, temp);
-    if (temp)
-    {
-        EncodeHRD(stream, &(vui->vcl_hrd_parameters));
-    }
-    if (vui->nal_hrd_parameters_present_flag || vui->vcl_hrd_parameters_present_flag)
-    {
-        BitstreamWrite1Bit(stream, vui->low_delay_hrd_flag);
-    }
-    BitstreamWrite1Bit(stream, vui->pic_struct_present_flag);
-    temp = vui->bitstream_restriction_flag;
-    BitstreamWrite1Bit(stream, temp);
-    if (temp)
-    {
-        BitstreamWrite1Bit(stream, vui->motion_vectors_over_pic_boundaries_flag);
-        ue_v(stream, vui->max_bytes_per_pic_denom);
-        ue_v(stream, vui->max_bits_per_mb_denom);
-        ue_v(stream, vui->log2_max_mv_length_horizontal);
-        ue_v(stream, vui->log2_max_mv_length_vertical);
-        ue_v(stream, vui->max_dec_frame_reordering);
-        ue_v(stream, vui->max_dec_frame_buffering);
-    }
-
-    return ;
-}
-
-
-void EncodeHRD(AVCEncBitstream* stream, AVCHRDParams* hrd)
-{
-    int i;
-
-    ue_v(stream, hrd->cpb_cnt_minus1);
-    BitstreamWriteBits(stream, 4, hrd->bit_rate_scale);
-    BitstreamWriteBits(stream, 4, hrd->cpb_size_scale);
-    for (i = 0; i <= (int)hrd->cpb_cnt_minus1; i++)
-    {
-        ue_v(stream, hrd->bit_rate_value_minus1[i]);
-        ue_v(stream, hrd->cpb_size_value_minus1[i]);
-        ue_v(stream, hrd->cbr_flag[i]);
-    }
-    BitstreamWriteBits(stream, 5, hrd->initial_cpb_removal_delay_length_minus1);
-    BitstreamWriteBits(stream, 5, hrd->cpb_removal_delay_length_minus1);
-    BitstreamWriteBits(stream, 5, hrd->dpb_output_delay_length_minus1);
-    BitstreamWriteBits(stream, 5, hrd->time_offset_length);
-
-    return ;
-}
-
-
-
-/** see subclause 7.4.2.2 */
-/* no need for checking the valid range , already done in SetEncodeParam().
-If we have to send another SPS, the ranges should be verified first before
-users call PVAVCEncodeSPS()*/
-AVCEnc_Status EncodePPS(AVCEncObject *encvid, AVCEncBitstream *stream)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    AVCPicParamSet *picParam = video->currPicParams;
-    int i, iGroup, numBits;
-    uint temp;
-
-    status = ue_v(stream, picParam->pic_parameter_set_id);
-    status = ue_v(stream, picParam->seq_parameter_set_id);
-    status = BitstreamWrite1Bit(stream, picParam->entropy_coding_mode_flag);
-    status = BitstreamWrite1Bit(stream, picParam->pic_order_present_flag);
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    status = ue_v(stream, picParam->num_slice_groups_minus1);
-    if (picParam->num_slice_groups_minus1 > 0)
-    {
-        status = ue_v(stream, picParam->slice_group_map_type);
-        if (picParam->slice_group_map_type == 0)
-        {
-            for (iGroup = 0; iGroup <= (int)picParam->num_slice_groups_minus1; iGroup++)
-            {
-                status = ue_v(stream, picParam->run_length_minus1[iGroup]);
-            }
-        }
-        else if (picParam->slice_group_map_type == 2)
-        {
-            for (iGroup = 0; iGroup < (int)picParam->num_slice_groups_minus1; iGroup++)
-            {
-                status = ue_v(stream, picParam->top_left[iGroup]);
-                status = ue_v(stream, picParam->bottom_right[iGroup]);
-            }
-        }
-        else if (picParam->slice_group_map_type == 3 ||
-                 picParam->slice_group_map_type == 4 ||
-                 picParam->slice_group_map_type == 5)
-        {
-            status = BitstreamWrite1Bit(stream, picParam->slice_group_change_direction_flag);
-            status = ue_v(stream, picParam->slice_group_change_rate_minus1);
-        }
-        else /*if(picParam->slice_group_map_type == 6)*/
-        {
-            status = ue_v(stream, picParam->pic_size_in_map_units_minus1);
-
-            numBits = 0;/* ceil(log2(num_slice_groups_minus1+1)) bits */
-            i = picParam->num_slice_groups_minus1;
-            while (i > 0)
-            {
-                numBits++;
-                i >>= 1;
-            }
-
-            for (i = 0; i <= (int)picParam->pic_size_in_map_units_minus1; i++)
-            {
-                status = BitstreamWriteBits(stream, numBits, picParam->slice_group_id[i]);
-            }
-        }
-    }
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    status = ue_v(stream, picParam->num_ref_idx_l0_active_minus1);
-    status = ue_v(stream, picParam->num_ref_idx_l1_active_minus1);
-    status = BitstreamWrite1Bit(stream, picParam->weighted_pred_flag);
-    status = BitstreamWriteBits(stream, 2, picParam->weighted_bipred_idc);
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    status = se_v(stream, picParam->pic_init_qp_minus26);
-    status = se_v(stream, picParam->pic_init_qs_minus26);
-    status = se_v(stream, picParam->chroma_qp_index_offset);
-
-    temp = picParam->deblocking_filter_control_present_flag << 2;
-    temp |= (picParam->constrained_intra_pred_flag << 1);
-    temp |= picParam->redundant_pic_cnt_present_flag;
-
-    status = BitstreamWriteBits(stream, 3, temp);
-
-    return status;
-}
-
-/** see subclause 7.4.3 */
-AVCEnc_Status EncodeSliceHeader(AVCEncObject *encvid, AVCEncBitstream *stream)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    AVCPicParamSet *currPPS = video->currPicParams;
-    AVCSeqParamSet *currSPS = video->currSeqParams;
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    int slice_type, temp, i;
-    int num_bits;
-
-    num_bits = (stream->write_pos << 3) - stream->bit_left;
-
-    status = ue_v(stream, sliceHdr->first_mb_in_slice);
-
-    slice_type = video->slice_type;
-
-    if (video->mbNum == 0) /* first mb in frame */
-    {
-        status = ue_v(stream, sliceHdr->slice_type);
-    }
-    else
-    {
-        status = ue_v(stream, slice_type);
-    }
-
-    status = ue_v(stream, sliceHdr->pic_parameter_set_id);
-
-    status = BitstreamWriteBits(stream, currSPS->log2_max_frame_num_minus4 + 4, sliceHdr->frame_num);
-
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-    /* if frame_mbs_only_flag is 0, encode field_pic_flag, bottom_field_flag here */
-
-    if (video->nal_unit_type == AVC_NALTYPE_IDR)
-    {
-        status = ue_v(stream, sliceHdr->idr_pic_id);
-    }
-
-    if (currSPS->pic_order_cnt_type == 0)
-    {
-        status = BitstreamWriteBits(stream, currSPS->log2_max_pic_order_cnt_lsb_minus4 + 4,
-                                    sliceHdr->pic_order_cnt_lsb);
-
-        if (currPPS->pic_order_present_flag && !sliceHdr->field_pic_flag)
-        {
-            status = se_v(stream, sliceHdr->delta_pic_order_cnt_bottom); /* 32 bits */
-        }
-    }
-    if (currSPS->pic_order_cnt_type == 1 && !currSPS->delta_pic_order_always_zero_flag)
-    {
-        status = se_v(stream, sliceHdr->delta_pic_order_cnt[0]);    /* 32 bits */
-        if (currPPS->pic_order_present_flag && !sliceHdr->field_pic_flag)
-        {
-            status = se_v(stream, sliceHdr->delta_pic_order_cnt[1]); /* 32 bits */
-        }
-    }
-
-    if (currPPS->redundant_pic_cnt_present_flag)
-    {
-        status = ue_v(stream, sliceHdr->redundant_pic_cnt);
-    }
-
-    if (slice_type == AVC_B_SLICE)
-    {
-        status = BitstreamWrite1Bit(stream, sliceHdr->direct_spatial_mv_pred_flag);
-    }
-
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    if (slice_type == AVC_P_SLICE || slice_type == AVC_SP_SLICE || slice_type == AVC_B_SLICE)
-    {
-        status = BitstreamWrite1Bit(stream, sliceHdr->num_ref_idx_active_override_flag);
-        if (sliceHdr->num_ref_idx_active_override_flag)
-        {
-            /* we shouldn't enter this part at all */
-            status = ue_v(stream, sliceHdr->num_ref_idx_l0_active_minus1);
-            if (slice_type == AVC_B_SLICE)
-            {
-                status = ue_v(stream, sliceHdr->num_ref_idx_l1_active_minus1);
-            }
-        }
-    }
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    /* ref_pic_list_reordering() */
-    status = ref_pic_list_reordering(video, stream, sliceHdr, slice_type);
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    if ((currPPS->weighted_pred_flag && (slice_type == AVC_P_SLICE || slice_type == AVC_SP_SLICE)) ||
-            (currPPS->weighted_bipred_idc == 1 && slice_type == AVC_B_SLICE))
-    {
-        //      pred_weight_table(); // not supported !!
-        return AVCENC_PRED_WEIGHT_TAB_FAIL;
-    }
-
-    if (video->nal_ref_idc != 0)
-    {
-        status = dec_ref_pic_marking(video, stream, sliceHdr);
-        if (status != AVCENC_SUCCESS)
-        {
-            return status;
-        }
-    }
-
-    if (currPPS->entropy_coding_mode_flag && slice_type != AVC_I_SLICE && slice_type != AVC_SI_SLICE)
-    {
-        return AVCENC_CABAC_FAIL;
-        /*      ue_v(stream,&(sliceHdr->cabac_init_idc));
-                if(sliceHdr->cabac_init_idc > 2){
-                    // not supported !!!!
-                }*/
-    }
-
-    status = se_v(stream, sliceHdr->slice_qp_delta);
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    if (slice_type == AVC_SP_SLICE || slice_type == AVC_SI_SLICE)
-    {
-        if (slice_type == AVC_SP_SLICE)
-        {
-            status = BitstreamWrite1Bit(stream, sliceHdr->sp_for_switch_flag);
-            /* if sp_for_switch_flag is 0, P macroblocks in SP slice is decoded using
-            SP decoding process for non-switching pictures in 8.6.1 */
-            /* else, P macroblocks in SP slice is decoded using SP and SI decoding
-            process for switching picture in 8.6.2 */
-        }
-        status = se_v(stream, sliceHdr->slice_qs_delta);
-        if (status != AVCENC_SUCCESS)
-        {
-            return status;
-        }
-    }
-
-    if (currPPS->deblocking_filter_control_present_flag)
-    {
-
-        status = ue_v(stream, sliceHdr->disable_deblocking_filter_idc);
-
-        if (sliceHdr->disable_deblocking_filter_idc != 1)
-        {
-            status = se_v(stream, sliceHdr->slice_alpha_c0_offset_div2);
-
-            status = se_v(stream, sliceHdr->slice_beta_offset_div_2);
-        }
-        if (status != AVCENC_SUCCESS)
-        {
-            return status;
-        }
-    }
-
-    if (currPPS->num_slice_groups_minus1 > 0 && currPPS->slice_group_map_type >= 3
-            && currPPS->slice_group_map_type <= 5)
-    {
-        /* Ceil(Log2(PicSizeInMapUnits/(float)SliceGroupChangeRate + 1)) */
-        temp = video->PicSizeInMapUnits / video->SliceGroupChangeRate;
-        if (video->PicSizeInMapUnits % video->SliceGroupChangeRate)
-        {
-            temp++;
-        }
-        i = 0;
-        while (temp > 1)
-        {
-            temp >>= 1;
-            i++;
-        }
-
-        BitstreamWriteBits(stream, i, sliceHdr->slice_group_change_cycle);
-    }
-
-
-    encvid->rateCtrl->NumberofHeaderBits += (stream->write_pos << 3) - stream->bit_left - num_bits;
-
-    return AVCENC_SUCCESS;
-}
-
-/** see subclause 7.4.3.1 */
-AVCEnc_Status ref_pic_list_reordering(AVCCommonObj *video, AVCEncBitstream *stream, AVCSliceHeader *sliceHdr, int slice_type)
-{
-    (void)(video);
-    int i;
-    AVCEnc_Status status = AVCENC_SUCCESS;
-
-    if (slice_type != AVC_I_SLICE && slice_type != AVC_SI_SLICE)
-    {
-        status = BitstreamWrite1Bit(stream, sliceHdr->ref_pic_list_reordering_flag_l0);
-        if (sliceHdr->ref_pic_list_reordering_flag_l0)
-        {
-            i = 0;
-            do
-            {
-                status = ue_v(stream, sliceHdr->reordering_of_pic_nums_idc_l0[i]);
-                if (sliceHdr->reordering_of_pic_nums_idc_l0[i] == 0 ||
-                        sliceHdr->reordering_of_pic_nums_idc_l0[i] == 1)
-                {
-                    status = ue_v(stream, sliceHdr->abs_diff_pic_num_minus1_l0[i]);
-                    /* this check should be in InitSlice(), if we ever use it */
-                    /*if(sliceHdr->reordering_of_pic_nums_idc_l0[i] == 0 &&
-                        sliceHdr->abs_diff_pic_num_minus1_l0[i] > video->MaxPicNum/2 -1)
-                    {
-                        return AVCENC_REF_PIC_REORDER_FAIL; // out of range
-                    }
-                    if(sliceHdr->reordering_of_pic_nums_idc_l0[i] == 1 &&
-                        sliceHdr->abs_diff_pic_num_minus1_l0[i] > video->MaxPicNum/2 -2)
-                    {
-                        return AVCENC_REF_PIC_REORDER_FAIL; // out of range
-                    }*/
-                }
-                else if (sliceHdr->reordering_of_pic_nums_idc_l0[i] == 2)
-                {
-                    status = ue_v(stream, sliceHdr->long_term_pic_num_l0[i]);
-                }
-                i++;
-            }
-            while (sliceHdr->reordering_of_pic_nums_idc_l0[i] != 3
-                    && i <= (int)sliceHdr->num_ref_idx_l0_active_minus1 + 1) ;
-        }
-    }
-    if (slice_type == AVC_B_SLICE)
-    {
-        status = BitstreamWrite1Bit(stream, sliceHdr->ref_pic_list_reordering_flag_l1);
-        if (sliceHdr->ref_pic_list_reordering_flag_l1)
-        {
-            i = 0;
-            do
-            {
-                status = ue_v(stream, sliceHdr->reordering_of_pic_nums_idc_l1[i]);
-                if (sliceHdr->reordering_of_pic_nums_idc_l1[i] == 0 ||
-                        sliceHdr->reordering_of_pic_nums_idc_l1[i] == 1)
-                {
-                    status = ue_v(stream, sliceHdr->abs_diff_pic_num_minus1_l1[i]);
-                    /* This check should be in InitSlice() if we ever use it
-                    if(sliceHdr->reordering_of_pic_nums_idc_l1[i] == 0 &&
-                        sliceHdr->abs_diff_pic_num_minus1_l1[i] > video->MaxPicNum/2 -1)
-                    {
-                        return AVCENC_REF_PIC_REORDER_FAIL; // out of range
-                    }
-                    if(sliceHdr->reordering_of_pic_nums_idc_l1[i] == 1 &&
-                        sliceHdr->abs_diff_pic_num_minus1_l1[i] > video->MaxPicNum/2 -2)
-                    {
-                        return AVCENC_REF_PIC_REORDER_FAIL; // out of range
-                    }*/
-                }
-                else if (sliceHdr->reordering_of_pic_nums_idc_l1[i] == 2)
-                {
-                    status = ue_v(stream, sliceHdr->long_term_pic_num_l1[i]);
-                }
-                i++;
-            }
-            while (sliceHdr->reordering_of_pic_nums_idc_l1[i] != 3
-                    && i <= (int)sliceHdr->num_ref_idx_l1_active_minus1 + 1) ;
-        }
-    }
-
-    return status;
-}
-
-/** see subclause 7.4.3.3 */
-AVCEnc_Status dec_ref_pic_marking(AVCCommonObj *video, AVCEncBitstream *stream, AVCSliceHeader *sliceHdr)
-{
-    int i;
-    AVCEnc_Status status = AVCENC_SUCCESS;
-
-    if (video->nal_unit_type == AVC_NALTYPE_IDR)
-    {
-        status = BitstreamWrite1Bit(stream, sliceHdr->no_output_of_prior_pics_flag);
-        status = BitstreamWrite1Bit(stream, sliceHdr->long_term_reference_flag);
-        if (sliceHdr->long_term_reference_flag == 0) /* used for short-term */
-        {
-            video->MaxLongTermFrameIdx = -1; /* no long-term frame indx */
-        }
-        else /* used for long-term */
-        {
-            video->MaxLongTermFrameIdx = 0;
-            video->LongTermFrameIdx = 0;
-        }
-    }
-    else
-    {
-        status = BitstreamWrite1Bit(stream, sliceHdr->adaptive_ref_pic_marking_mode_flag); /* default to zero */
-        if (sliceHdr->adaptive_ref_pic_marking_mode_flag)
-        {
-            i = 0;
-            do
-            {
-                status = ue_v(stream, sliceHdr->memory_management_control_operation[i]);
-                if (sliceHdr->memory_management_control_operation[i] == 1 ||
-                        sliceHdr->memory_management_control_operation[i] == 3)
-                {
-                    status = ue_v(stream, sliceHdr->difference_of_pic_nums_minus1[i]);
-                }
-                if (sliceHdr->memory_management_control_operation[i] == 2)
-                {
-                    status = ue_v(stream, sliceHdr->long_term_pic_num[i]);
-                }
-                if (sliceHdr->memory_management_control_operation[i] == 3 ||
-                        sliceHdr->memory_management_control_operation[i] == 6)
-                {
-                    status = ue_v(stream, sliceHdr->long_term_frame_idx[i]);
-                }
-                if (sliceHdr->memory_management_control_operation[i] == 4)
-                {
-                    status = ue_v(stream, sliceHdr->max_long_term_frame_idx_plus1[i]);
-                }
-                i++;
-            }
-            while (sliceHdr->memory_management_control_operation[i] != 0 && i < MAX_DEC_REF_PIC_MARKING);
-            if (i >= MAX_DEC_REF_PIC_MARKING && sliceHdr->memory_management_control_operation[i] != 0)
-            {
-                return AVCENC_DEC_REF_PIC_MARK_FAIL; /* we're screwed!!, not enough memory */
-            }
-        }
-    }
-
-    return status;
-}
-
-/* see subclause 8.2.1 Decoding process for picture order count.
-See also PostPOC() for initialization of some variables. */
-AVCEnc_Status InitPOC(AVCEncObject *encvid)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCSeqParamSet *currSPS = video->currSeqParams;
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    AVCFrameIO  *currInput = encvid->currInput;
-    int i;
-
-    switch (currSPS->pic_order_cnt_type)
-    {
-        case 0: /* POC MODE 0 , subclause 8.2.1.1 */
-            /* encoding part */
-            if (video->nal_unit_type == AVC_NALTYPE_IDR)
-            {
-                encvid->dispOrdPOCRef = currInput->disp_order;
-            }
-            while (currInput->disp_order < encvid->dispOrdPOCRef)
-            {
-                encvid->dispOrdPOCRef -= video->MaxPicOrderCntLsb;
-            }
-            sliceHdr->pic_order_cnt_lsb = currInput->disp_order - encvid->dispOrdPOCRef;
-            while (sliceHdr->pic_order_cnt_lsb >= video->MaxPicOrderCntLsb)
-            {
-                sliceHdr->pic_order_cnt_lsb -= video->MaxPicOrderCntLsb;
-            }
-            /* decoding part */
-            /* Calculate the MSBs of current picture */
-            if (video->nal_unit_type == AVC_NALTYPE_IDR)
-            {
-                video->prevPicOrderCntMsb = 0;
-                video->prevPicOrderCntLsb = 0;
-            }
-            if (sliceHdr->pic_order_cnt_lsb  <  video->prevPicOrderCntLsb  &&
-                    (video->prevPicOrderCntLsb - sliceHdr->pic_order_cnt_lsb)  >= (video->MaxPicOrderCntLsb / 2))
-                video->PicOrderCntMsb = video->prevPicOrderCntMsb + video->MaxPicOrderCntLsb;
-            else if (sliceHdr->pic_order_cnt_lsb  >  video->prevPicOrderCntLsb  &&
-                     (sliceHdr->pic_order_cnt_lsb - video->prevPicOrderCntLsb)  > (video->MaxPicOrderCntLsb / 2))
-                video->PicOrderCntMsb = video->prevPicOrderCntMsb - video->MaxPicOrderCntLsb;
-            else
-                video->PicOrderCntMsb = video->prevPicOrderCntMsb;
-
-            /* JVT-I010 page 81 is different from JM7.3 */
-            if (!sliceHdr->field_pic_flag || !sliceHdr->bottom_field_flag)
-            {
-                video->PicOrderCnt = video->TopFieldOrderCnt = video->PicOrderCntMsb + sliceHdr->pic_order_cnt_lsb;
-            }
-
-            if (!sliceHdr->field_pic_flag)
-            {
-                video->BottomFieldOrderCnt = video->TopFieldOrderCnt + sliceHdr->delta_pic_order_cnt_bottom;
-            }
-            else if (sliceHdr->bottom_field_flag)
-            {
-                video->PicOrderCnt = video->BottomFieldOrderCnt = video->PicOrderCntMsb + sliceHdr->pic_order_cnt_lsb;
-            }
-
-            if (!sliceHdr->field_pic_flag)
-            {
-                video->PicOrderCnt = AVC_MIN(video->TopFieldOrderCnt, video->BottomFieldOrderCnt);
-            }
-
-            if (video->currPicParams->pic_order_present_flag && !sliceHdr->field_pic_flag)
-            {
-                sliceHdr->delta_pic_order_cnt_bottom = 0; /* defaulted to zero */
-            }
-
-            break;
-        case 1: /* POC MODE 1, subclause 8.2.1.2 */
-            /* calculate FrameNumOffset */
-            if (video->nal_unit_type == AVC_NALTYPE_IDR)
-            {
-                encvid->dispOrdPOCRef = currInput->disp_order;  /* reset the reference point */
-                video->prevFrameNumOffset = 0;
-                video->FrameNumOffset = 0;
-            }
-            else if (video->prevFrameNum > sliceHdr->frame_num)
-            {
-                video->FrameNumOffset = video->prevFrameNumOffset + video->MaxFrameNum;
-            }
-            else
-            {
-                video->FrameNumOffset = video->prevFrameNumOffset;
-            }
-            /* calculate absFrameNum */
-            if (currSPS->num_ref_frames_in_pic_order_cnt_cycle)
-            {
-                video->absFrameNum = video->FrameNumOffset + sliceHdr->frame_num;
-            }
-            else
-            {
-                video->absFrameNum = 0;
-            }
-
-            if (video->absFrameNum > 0 && video->nal_ref_idc == 0)
-            {
-                video->absFrameNum--;
-            }
-
-            /* derive picOrderCntCycleCnt and frameNumInPicOrderCntCycle */
-            if (video->absFrameNum > 0)
-            {
-                video->picOrderCntCycleCnt = (video->absFrameNum - 1) / currSPS->num_ref_frames_in_pic_order_cnt_cycle;
-                video->frameNumInPicOrderCntCycle = (video->absFrameNum - 1) % currSPS->num_ref_frames_in_pic_order_cnt_cycle;
-            }
-            /* derive expectedDeltaPerPicOrderCntCycle, this value can be computed up front. */
-            video->expectedDeltaPerPicOrderCntCycle = 0;
-            for (i = 0; i < (int)currSPS->num_ref_frames_in_pic_order_cnt_cycle; i++)
-            {
-                video->expectedDeltaPerPicOrderCntCycle += currSPS->offset_for_ref_frame[i];
-            }
-            /* derive expectedPicOrderCnt */
-            if (video->absFrameNum)
-            {
-                video->expectedPicOrderCnt = video->picOrderCntCycleCnt * video->expectedDeltaPerPicOrderCntCycle;
-                for (i = 0; i <= video->frameNumInPicOrderCntCycle; i++)
-                {
-                    video->expectedPicOrderCnt += currSPS->offset_for_ref_frame[i];
-                }
-            }
-            else
-            {
-                video->expectedPicOrderCnt = 0;
-            }
-
-            if (video->nal_ref_idc == 0)
-            {
-                video->expectedPicOrderCnt += currSPS->offset_for_non_ref_pic;
-            }
-            /* derive TopFieldOrderCnt and BottomFieldOrderCnt */
-            /* encoding part */
-            if (!currSPS->delta_pic_order_always_zero_flag)
-            {
-                sliceHdr->delta_pic_order_cnt[0] = currInput->disp_order - encvid->dispOrdPOCRef - video->expectedPicOrderCnt;
-
-                if (video->currPicParams->pic_order_present_flag && !sliceHdr->field_pic_flag)
-                {
-                    sliceHdr->delta_pic_order_cnt[1] = sliceHdr->delta_pic_order_cnt[0]; /* should be calculated from currInput->bottom_field->disp_order */
-                }
-                else
-                {
-                    sliceHdr->delta_pic_order_cnt[1] = 0;
-                }
-            }
-            else
-            {
-                sliceHdr->delta_pic_order_cnt[0] = sliceHdr->delta_pic_order_cnt[1] = 0;
-            }
-
-            if (sliceHdr->field_pic_flag == 0)
-            {
-                video->TopFieldOrderCnt = video->expectedPicOrderCnt + sliceHdr->delta_pic_order_cnt[0];
-                video->BottomFieldOrderCnt = video->TopFieldOrderCnt + currSPS->offset_for_top_to_bottom_field + sliceHdr->delta_pic_order_cnt[1];
-
-                video->PicOrderCnt = AVC_MIN(video->TopFieldOrderCnt, video->BottomFieldOrderCnt);
-            }
-            else if (sliceHdr->bottom_field_flag == 0)
-            {
-                video->TopFieldOrderCnt = video->expectedPicOrderCnt + sliceHdr->delta_pic_order_cnt[0];
-                video->PicOrderCnt = video->TopFieldOrderCnt;
-            }
-            else
-            {
-                video->BottomFieldOrderCnt = video->expectedPicOrderCnt + currSPS->offset_for_top_to_bottom_field + sliceHdr->delta_pic_order_cnt[0];
-                video->PicOrderCnt = video->BottomFieldOrderCnt;
-            }
-            break;
-
-
-        case 2: /* POC MODE 2, subclause 8.2.1.3 */
-            /* decoding order must be the same as display order */
-            /* we don't check for that. The decoder will just output in decoding order. */
-            /* Check for 2 consecutive non-reference frame */
-            if (video->nal_ref_idc == 0)
-            {
-                if (encvid->dispOrdPOCRef == 1)
-                {
-                    return AVCENC_CONSECUTIVE_NONREF;
-                }
-                encvid->dispOrdPOCRef = 1;  /* act as a flag for non ref */
-            }
-            else
-            {
-                encvid->dispOrdPOCRef = 0;
-            }
-
-
-            if (video->nal_unit_type == AVC_NALTYPE_IDR)
-            {
-                video->FrameNumOffset = 0;
-            }
-            else if (video->prevFrameNum > sliceHdr->frame_num)
-            {
-                video->FrameNumOffset = video->prevFrameNumOffset + video->MaxFrameNum;
-            }
-            else
-            {
-                video->FrameNumOffset = video->prevFrameNumOffset;
-            }
-            /* derive tempPicOrderCnt, we just use PicOrderCnt */
-            if (video->nal_unit_type == AVC_NALTYPE_IDR)
-            {
-                video->PicOrderCnt = 0;
-            }
-            else if (video->nal_ref_idc == 0)
-            {
-                video->PicOrderCnt = 2 * (video->FrameNumOffset + sliceHdr->frame_num) - 1;
-            }
-            else
-            {
-                video->PicOrderCnt = 2 * (video->FrameNumOffset + sliceHdr->frame_num);
-            }
-            /* derive TopFieldOrderCnt and BottomFieldOrderCnt */
-            if (sliceHdr->field_pic_flag == 0)
-            {
-                video->TopFieldOrderCnt = video->BottomFieldOrderCnt = video->PicOrderCnt;
-            }
-            else if (sliceHdr->bottom_field_flag)
-            {
-                video->BottomFieldOrderCnt = video->PicOrderCnt;
-            }
-            else
-            {
-                video->TopFieldOrderCnt = video->PicOrderCnt;
-            }
-            break;
-        default:
-            return AVCENC_POC_FAIL;
-    }
-
-    return AVCENC_SUCCESS;
-}
-
-/** see subclause 8.2.1 */
-AVCEnc_Status PostPOC(AVCCommonObj *video)
-{
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    AVCSeqParamSet *currSPS = video->currSeqParams;
-
-    video->prevFrameNum = sliceHdr->frame_num;
-
-    switch (currSPS->pic_order_cnt_type)
-    {
-        case 0: /* subclause 8.2.1.1 */
-            if (video->mem_mgr_ctrl_eq_5)
-            {
-                video->prevPicOrderCntMsb = 0;
-                video->prevPicOrderCntLsb = video->TopFieldOrderCnt;
-            }
-            else
-            {
-                video->prevPicOrderCntMsb = video->PicOrderCntMsb;
-                video->prevPicOrderCntLsb = sliceHdr->pic_order_cnt_lsb;
-            }
-            break;
-        case 1:  /* subclause 8.2.1.2 and 8.2.1.3 */
-        case 2:
-            if (video->mem_mgr_ctrl_eq_5)
-            {
-                video->prevFrameNumOffset = 0;
-            }
-            else
-            {
-                video->prevFrameNumOffset = video->FrameNumOffset;
-            }
-            break;
-    }
-
-    return AVCENC_SUCCESS;
-}
-
diff --git a/media/libstagefright/codecs/avc/enc/src/init.cpp b/media/libstagefright/codecs/avc/enc/src/init.cpp
deleted file mode 100644
index 6e1413a..0000000
--- a/media/libstagefright/codecs/avc/enc/src/init.cpp
+++ /dev/null
@@ -1,895 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-#include "avcenc_api.h"
-
-#define LOG2_MAX_FRAME_NUM_MINUS4   12   /* 12 default */
-#define SLICE_GROUP_CHANGE_CYCLE    1    /* default */
-
-/* initialized variables to be used in SPS*/
-AVCEnc_Status  SetEncodeParam(AVCHandle* avcHandle, AVCEncParams* encParam,
-                              void* extSPS, void* extPPS)
-{
-    AVCEncObject *encvid = (AVCEncObject*) avcHandle->AVCObject;
-    AVCCommonObj *video = encvid->common;
-    AVCSeqParamSet *seqParam = video->currSeqParams;
-    AVCPicParamSet *picParam = video->currPicParams;
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    AVCEnc_Status status;
-    void *userData = avcHandle->userData;
-    int ii, maxFrameNum;
-
-    AVCSeqParamSet* extS = NULL;
-    AVCPicParamSet* extP = NULL;
-
-    if (extSPS) extS = (AVCSeqParamSet*) extSPS;
-    if (extPPS) extP = (AVCPicParamSet*) extPPS;
-
-    /* This part sets the default values of the encoding options this
-    library supports in seqParam, picParam and sliceHdr structures and
-    also copy the values from the encParam into the above 3 structures.
-
-    Some parameters will be assigned later when we encode SPS or PPS such as
-    the seq_parameter_id or pic_parameter_id. Also some of the slice parameters
-    have to be re-assigned per slice basis such as frame_num, slice_type,
-    first_mb_in_slice, pic_order_cnt_lsb, slice_qp_delta, slice_group_change_cycle */
-
-    /* profile_idc, constrained_setx_flag and level_idc is set by VerifyProfile(),
-    and VerifyLevel() functions later. */
-
-    encvid->fullsearch_enable = encParam->fullsearch;
-
-    encvid->outOfBandParamSet = ((encParam->out_of_band_param_set == AVC_ON) ? TRUE : FALSE);
-
-    /* parameters derived from the the encParam that are used in SPS */
-    if (extS)
-    {
-        video->MaxPicOrderCntLsb =  1 << (extS->log2_max_pic_order_cnt_lsb_minus4 + 4);
-        video->PicWidthInMbs = extS->pic_width_in_mbs_minus1 + 1;
-        video->PicHeightInMapUnits = extS->pic_height_in_map_units_minus1 + 1 ;
-        video->FrameHeightInMbs = (2 - extS->frame_mbs_only_flag) * video->PicHeightInMapUnits ;
-    }
-    else
-    {
-        video->MaxPicOrderCntLsb =  1 << (encParam->log2_max_poc_lsb_minus_4 + 4);
-        video->PicWidthInMbs = (encParam->width + 15) >> 4; /* round it to multiple of 16 */
-        video->FrameHeightInMbs = (encParam->height + 15) >> 4; /* round it to multiple of 16 */
-        video->PicHeightInMapUnits = video->FrameHeightInMbs;
-    }
-
-    video->PicWidthInSamplesL = video->PicWidthInMbs * 16 ;
-    if (video->PicWidthInSamplesL + 32 > 0xFFFF)
-    {
-        return AVCENC_NOT_SUPPORTED; // we use 2-bytes for pitch
-    }
-
-    video->PicWidthInSamplesC = video->PicWidthInMbs * 8 ;
-    video->PicHeightInMbs = video->FrameHeightInMbs;
-    video->PicSizeInMapUnits = video->PicWidthInMbs * video->PicHeightInMapUnits ;
-    video->PicHeightInSamplesL = video->PicHeightInMbs * 16;
-    video->PicHeightInSamplesC = video->PicHeightInMbs * 8;
-    video->PicSizeInMbs = video->PicWidthInMbs * video->PicHeightInMbs;
-
-    if (!extS && !extP)
-    {
-        maxFrameNum = (encParam->idr_period == -1) ? (1 << 16) : encParam->idr_period;
-        ii = 0;
-        while (maxFrameNum > 0)
-        {
-            ii++;
-            maxFrameNum >>= 1;
-        }
-        if (ii < 4) ii = 4;
-        else if (ii > 16) ii = 16;
-
-        seqParam->log2_max_frame_num_minus4 = ii - 4;//LOG2_MAX_FRAME_NUM_MINUS4; /* default */
-
-        video->MaxFrameNum = 1 << ii; //(LOG2_MAX_FRAME_NUM_MINUS4 + 4); /* default */
-        video->MaxPicNum = video->MaxFrameNum;
-
-        /************* set the SPS *******************/
-        seqParam->seq_parameter_set_id = 0; /* start with zero */
-        /* POC */
-        seqParam->pic_order_cnt_type = encParam->poc_type; /* POC type */
-        if (encParam->poc_type == 0)
-        {
-            if (/*encParam->log2_max_poc_lsb_minus_4<0 || (no need, it's unsigned)*/
-                encParam->log2_max_poc_lsb_minus_4 > 12)
-            {
-                return AVCENC_INVALID_POC_LSB;
-            }
-            seqParam->log2_max_pic_order_cnt_lsb_minus4 = encParam->log2_max_poc_lsb_minus_4;
-        }
-        else if (encParam->poc_type == 1)
-        {
-            seqParam->delta_pic_order_always_zero_flag = encParam->delta_poc_zero_flag;
-            seqParam->offset_for_non_ref_pic = encParam->offset_poc_non_ref;
-            seqParam->offset_for_top_to_bottom_field = encParam->offset_top_bottom;
-            seqParam->num_ref_frames_in_pic_order_cnt_cycle = encParam->num_ref_in_cycle;
-            if (encParam->offset_poc_ref == NULL)
-            {
-                return AVCENC_ENCPARAM_MEM_FAIL;
-            }
-            for (ii = 0; ii < encParam->num_ref_frame; ii++)
-            {
-                seqParam->offset_for_ref_frame[ii] = encParam->offset_poc_ref[ii];
-            }
-        }
-        /* number of reference frame */
-        if (encParam->num_ref_frame > 16 || encParam->num_ref_frame < 0)
-        {
-            return AVCENC_INVALID_NUM_REF;
-        }
-        seqParam->num_ref_frames = encParam->num_ref_frame; /* num reference frame range 0...16*/
-        seqParam->gaps_in_frame_num_value_allowed_flag = FALSE;
-        seqParam->pic_width_in_mbs_minus1 = video->PicWidthInMbs - 1;
-        seqParam->pic_height_in_map_units_minus1 = video->PicHeightInMapUnits - 1;
-        seqParam->frame_mbs_only_flag = TRUE;
-        seqParam->mb_adaptive_frame_field_flag = FALSE;
-        seqParam->direct_8x8_inference_flag = FALSE; /* default */
-        seqParam->frame_cropping_flag = FALSE;
-        seqParam->frame_crop_bottom_offset = 0;
-        seqParam->frame_crop_left_offset = 0;
-        seqParam->frame_crop_right_offset = 0;
-        seqParam->frame_crop_top_offset = 0;
-        seqParam->vui_parameters_present_flag = FALSE; /* default */
-    }
-    else if (extS) // use external SPS and PPS
-    {
-        seqParam->seq_parameter_set_id = extS->seq_parameter_set_id;
-        seqParam->log2_max_frame_num_minus4 = extS->log2_max_frame_num_minus4;
-        video->MaxFrameNum = 1 << (extS->log2_max_frame_num_minus4 + 4);
-        video->MaxPicNum = video->MaxFrameNum;
-        if (encParam->idr_period > (int)(video->MaxFrameNum) || (encParam->idr_period == -1))
-        {
-            encParam->idr_period = (int)video->MaxFrameNum;
-        }
-
-        seqParam->pic_order_cnt_type = extS->pic_order_cnt_type;
-        if (seqParam->pic_order_cnt_type == 0)
-        {
-            if (/*extS->log2_max_pic_order_cnt_lsb_minus4<0 || (no need it's unsigned)*/
-                extS->log2_max_pic_order_cnt_lsb_minus4 > 12)
-            {
-                return AVCENC_INVALID_POC_LSB;
-            }
-            seqParam->log2_max_pic_order_cnt_lsb_minus4 = extS->log2_max_pic_order_cnt_lsb_minus4;
-        }
-        else if (seqParam->pic_order_cnt_type == 1)
-        {
-            seqParam->delta_pic_order_always_zero_flag = extS->delta_pic_order_always_zero_flag;
-            seqParam->offset_for_non_ref_pic = extS->offset_for_non_ref_pic;
-            seqParam->offset_for_top_to_bottom_field = extS->offset_for_top_to_bottom_field;
-            seqParam->num_ref_frames_in_pic_order_cnt_cycle = extS->num_ref_frames_in_pic_order_cnt_cycle;
-            for (ii = 0; ii < (int) extS->num_ref_frames; ii++)
-            {
-                seqParam->offset_for_ref_frame[ii] = extS->offset_for_ref_frame[ii];
-            }
-        }
-        /* number of reference frame */
-        if (extS->num_ref_frames > 16 /*|| extS->num_ref_frames<0 (no need, it's unsigned)*/)
-        {
-            return AVCENC_INVALID_NUM_REF;
-        }
-        seqParam->num_ref_frames = extS->num_ref_frames; /* num reference frame range 0...16*/
-        seqParam->gaps_in_frame_num_value_allowed_flag = extS->gaps_in_frame_num_value_allowed_flag;
-        seqParam->pic_width_in_mbs_minus1 = extS->pic_width_in_mbs_minus1;
-        seqParam->pic_height_in_map_units_minus1 = extS->pic_height_in_map_units_minus1;
-        seqParam->frame_mbs_only_flag = extS->frame_mbs_only_flag;
-        if (extS->frame_mbs_only_flag != TRUE)
-        {
-            return AVCENC_NOT_SUPPORTED;
-        }
-        seqParam->mb_adaptive_frame_field_flag = extS->mb_adaptive_frame_field_flag;
-        if (extS->mb_adaptive_frame_field_flag != FALSE)
-        {
-            return AVCENC_NOT_SUPPORTED;
-        }
-
-        seqParam->direct_8x8_inference_flag = extS->direct_8x8_inference_flag;
-        seqParam->frame_cropping_flag = extS->frame_cropping_flag ;
-        if (extS->frame_cropping_flag != FALSE)
-        {
-            return AVCENC_NOT_SUPPORTED;
-        }
-
-        seqParam->frame_crop_bottom_offset = 0;
-        seqParam->frame_crop_left_offset = 0;
-        seqParam->frame_crop_right_offset = 0;
-        seqParam->frame_crop_top_offset = 0;
-        seqParam->vui_parameters_present_flag = extS->vui_parameters_present_flag;
-        if (extS->vui_parameters_present_flag)
-        {
-            memcpy(&(seqParam->vui_parameters), &(extS->vui_parameters), sizeof(AVCVUIParams));
-        }
-    }
-    else
-    {
-        return AVCENC_NOT_SUPPORTED;
-    }
-
-    /***************** now PPS ******************************/
-    if (!extP && !extS)
-    {
-        picParam->pic_parameter_set_id = (uint)(-1); /* start with zero */
-        picParam->seq_parameter_set_id = (uint)(-1); /* start with zero */
-        picParam->entropy_coding_mode_flag = 0; /* default to CAVLC */
-        picParam->pic_order_present_flag = 0; /* default for now, will need it for B-slice */
-        /* FMO */
-        if (encParam->num_slice_group < 1 || encParam->num_slice_group > MAX_NUM_SLICE_GROUP)
-        {
-            return AVCENC_INVALID_NUM_SLICEGROUP;
-        }
-        picParam->num_slice_groups_minus1 = encParam->num_slice_group - 1;
-
-        if (picParam->num_slice_groups_minus1 > 0)
-        {
-            picParam->slice_group_map_type = encParam->fmo_type;
-            switch (encParam->fmo_type)
-            {
-                case 0:
-                    for (ii = 0; ii <= (int)picParam->num_slice_groups_minus1; ii++)
-                    {
-                        picParam->run_length_minus1[ii] = encParam->run_length_minus1[ii];
-                    }
-                    break;
-                case 2:
-                    for (ii = 0; ii < (int)picParam->num_slice_groups_minus1; ii++)
-                    {
-                        picParam->top_left[ii] = encParam->top_left[ii];
-                        picParam->bottom_right[ii] = encParam->bottom_right[ii];
-                    }
-                    break;
-                case 3:
-                case 4:
-                case 5:
-                    if (encParam->change_dir_flag == AVC_ON)
-                    {
-                        picParam->slice_group_change_direction_flag = TRUE;
-                    }
-                    else
-                    {
-                        picParam->slice_group_change_direction_flag = FALSE;
-                    }
-                    if (/*encParam->change_rate_minus1 < 0 || (no need it's unsigned) */
-                        encParam->change_rate_minus1 > video->PicSizeInMapUnits - 1)
-                    {
-                        return AVCENC_INVALID_CHANGE_RATE;
-                    }
-                    picParam->slice_group_change_rate_minus1 = encParam->change_rate_minus1;
-                    video->SliceGroupChangeRate = picParam->slice_group_change_rate_minus1 + 1;
-                    break;
-                case 6:
-                    picParam->pic_size_in_map_units_minus1 = video->PicSizeInMapUnits - 1;
-
-                    /* allocate picParam->slice_group_id */
-                    picParam->slice_group_id = (uint*)avcHandle->CBAVC_Malloc(userData, sizeof(uint) * video->PicSizeInMapUnits, DEFAULT_ATTR);
-                    if (picParam->slice_group_id == NULL)
-                    {
-                        return AVCENC_MEMORY_FAIL;
-                    }
-
-                    if (encParam->slice_group == NULL)
-                    {
-                        return AVCENC_ENCPARAM_MEM_FAIL;
-                    }
-                    for (ii = 0; ii < (int)video->PicSizeInMapUnits; ii++)
-                    {
-                        picParam->slice_group_id[ii] = encParam->slice_group[ii];
-                    }
-                    break;
-                default:
-                    return AVCENC_INVALID_FMO_TYPE;
-            }
-        }
-        picParam->num_ref_idx_l0_active_minus1 = encParam->num_ref_frame - 1; /* assume frame only */
-        picParam->num_ref_idx_l1_active_minus1 = 0; /* default value */
-        picParam->weighted_pred_flag = 0; /* no weighted prediction supported */
-        picParam->weighted_bipred_idc = 0; /* range 0,1,2 */
-        if (/*picParam->weighted_bipred_idc < 0 || (no need, it's unsigned) */
-            picParam->weighted_bipred_idc > 2)
-        {
-            return AVCENC_WEIGHTED_BIPRED_FAIL;
-        }
-        picParam->pic_init_qp_minus26 = 0; /* default, will be changed at slice level anyway */
-        if (picParam->pic_init_qp_minus26 < -26 || picParam->pic_init_qp_minus26 > 25)
-        {
-            return AVCENC_INIT_QP_FAIL; /* out of range */
-        }
-        picParam->pic_init_qs_minus26 = 0;
-        if (picParam->pic_init_qs_minus26 < -26 || picParam->pic_init_qs_minus26 > 25)
-        {
-            return AVCENC_INIT_QS_FAIL; /* out of range */
-        }
-
-        picParam->chroma_qp_index_offset = 0; /* default to zero for now */
-        if (picParam->chroma_qp_index_offset < -12 || picParam->chroma_qp_index_offset > 12)
-        {
-            return AVCENC_CHROMA_QP_FAIL; /* out of range */
-        }
-        /* deblocking */
-        picParam->deblocking_filter_control_present_flag = (encParam->db_filter == AVC_ON) ? TRUE : FALSE ;
-        /* constrained intra prediction */
-        picParam->constrained_intra_pred_flag = (encParam->constrained_intra_pred == AVC_ON) ? TRUE : FALSE;
-        picParam->redundant_pic_cnt_present_flag = 0; /* default */
-    }
-    else if (extP)// external PPS
-    {
-        picParam->pic_parameter_set_id = extP->pic_parameter_set_id - 1; /* to be increased by one */
-        picParam->seq_parameter_set_id = extP->seq_parameter_set_id;
-        picParam->entropy_coding_mode_flag = extP->entropy_coding_mode_flag;
-        if (extP->entropy_coding_mode_flag != 0) /* default to CAVLC */
-        {
-            return AVCENC_NOT_SUPPORTED;
-        }
-        picParam->pic_order_present_flag = extP->pic_order_present_flag; /* default for now, will need it for B-slice */
-        if (extP->pic_order_present_flag != 0)
-        {
-            return AVCENC_NOT_SUPPORTED;
-        }
-        /* FMO */
-        if (/*(extP->num_slice_groups_minus1<0) || (no need it's unsigned) */
-            (extP->num_slice_groups_minus1 > MAX_NUM_SLICE_GROUP - 1))
-        {
-            return AVCENC_INVALID_NUM_SLICEGROUP;
-        }
-        picParam->num_slice_groups_minus1 = extP->num_slice_groups_minus1;
-
-        if (picParam->num_slice_groups_minus1 > 0)
-        {
-            picParam->slice_group_map_type = extP->slice_group_map_type;
-            switch (extP->slice_group_map_type)
-            {
-                case 0:
-                    for (ii = 0; ii <= (int)extP->num_slice_groups_minus1; ii++)
-                    {
-                        picParam->run_length_minus1[ii] = extP->run_length_minus1[ii];
-                    }
-                    break;
-                case 2:
-                    for (ii = 0; ii < (int)picParam->num_slice_groups_minus1; ii++)
-                    {
-                        picParam->top_left[ii] = extP->top_left[ii];
-                        picParam->bottom_right[ii] = extP->bottom_right[ii];
-                    }
-                    break;
-                case 3:
-                case 4:
-                case 5:
-                    picParam->slice_group_change_direction_flag = extP->slice_group_change_direction_flag;
-                    if (/*extP->slice_group_change_rate_minus1 < 0 || (no need, it's unsigned) */
-                        extP->slice_group_change_rate_minus1 > video->PicSizeInMapUnits - 1)
-                    {
-                        return AVCENC_INVALID_CHANGE_RATE;
-                    }
-                    picParam->slice_group_change_rate_minus1 = extP->slice_group_change_rate_minus1;
-                    video->SliceGroupChangeRate = picParam->slice_group_change_rate_minus1 + 1;
-                    break;
-                case 6:
-                    if (extP->pic_size_in_map_units_minus1 != video->PicSizeInMapUnits - 1)
-                    {
-                        return AVCENC_NOT_SUPPORTED;
-                    }
-
-                    picParam->pic_size_in_map_units_minus1 = extP->pic_size_in_map_units_minus1;
-
-                    /* allocate picParam->slice_group_id */
-                    picParam->slice_group_id = (uint*)avcHandle->CBAVC_Malloc(userData, sizeof(uint) * video->PicSizeInMapUnits, DEFAULT_ATTR);
-                    if (picParam->slice_group_id == NULL)
-                    {
-                        return AVCENC_MEMORY_FAIL;
-                    }
-
-                    if (extP->slice_group_id == NULL)
-                    {
-                        return AVCENC_ENCPARAM_MEM_FAIL;
-                    }
-                    for (ii = 0; ii < (int)video->PicSizeInMapUnits; ii++)
-                    {
-                        picParam->slice_group_id[ii] = extP->slice_group_id[ii];
-                    }
-                    break;
-                default:
-                    return AVCENC_INVALID_FMO_TYPE;
-            }
-        }
-        picParam->num_ref_idx_l0_active_minus1 = extP->num_ref_idx_l0_active_minus1;
-        picParam->num_ref_idx_l1_active_minus1 = extP->num_ref_idx_l1_active_minus1; /* default value */
-        if (picParam->num_ref_idx_l1_active_minus1 != 0)
-        {
-            return AVCENC_NOT_SUPPORTED;
-        }
-
-        if (extP->weighted_pred_flag)
-        {
-            return AVCENC_NOT_SUPPORTED;
-        }
-
-        picParam->weighted_pred_flag = 0; /* no weighted prediction supported */
-        picParam->weighted_bipred_idc = extP->weighted_bipred_idc; /* range 0,1,2 */
-        if (/*picParam->weighted_bipred_idc < 0 || (no need, it's unsigned) */
-            picParam->weighted_bipred_idc > 2)
-        {
-            return AVCENC_WEIGHTED_BIPRED_FAIL;
-        }
-        picParam->pic_init_qp_minus26 = extP->pic_init_qp_minus26; /* default, will be changed at slice level anyway */
-        if (picParam->pic_init_qp_minus26 < -26 || picParam->pic_init_qp_minus26 > 25)
-        {
-            return AVCENC_INIT_QP_FAIL; /* out of range */
-        }
-        picParam->pic_init_qs_minus26 = extP->pic_init_qs_minus26;
-        if (picParam->pic_init_qs_minus26 < -26 || picParam->pic_init_qs_minus26 > 25)
-        {
-            return AVCENC_INIT_QS_FAIL; /* out of range */
-        }
-
-        picParam->chroma_qp_index_offset = extP->chroma_qp_index_offset; /* default to zero for now */
-        if (picParam->chroma_qp_index_offset < -12 || picParam->chroma_qp_index_offset > 12)
-        {
-            return AVCENC_CHROMA_QP_FAIL; /* out of range */
-        }
-        /* deblocking */
-        picParam->deblocking_filter_control_present_flag = extP->deblocking_filter_control_present_flag;
-        /* constrained intra prediction */
-        picParam->constrained_intra_pred_flag = extP->constrained_intra_pred_flag;
-        if (extP->redundant_pic_cnt_present_flag  != 0)
-        {
-            return AVCENC_NOT_SUPPORTED;
-        }
-        picParam->redundant_pic_cnt_present_flag = extP->redundant_pic_cnt_present_flag; /* default */
-    }
-    else
-    {
-        return AVCENC_NOT_SUPPORTED;
-    }
-
-    /****************** now set up some SliceHeader parameters ***********/
-    if (picParam->deblocking_filter_control_present_flag == TRUE)
-    {
-        /* these values only present when db_filter is ON */
-        if (encParam->disable_db_idc > 2)
-        {
-            return AVCENC_INVALID_DEBLOCK_IDC; /* out of range */
-        }
-        sliceHdr->disable_deblocking_filter_idc = encParam->disable_db_idc;
-
-        if (encParam->alpha_offset < -6 || encParam->alpha_offset > 6)
-        {
-            return AVCENC_INVALID_ALPHA_OFFSET;
-        }
-        sliceHdr->slice_alpha_c0_offset_div2 = encParam->alpha_offset;
-
-        if (encParam->beta_offset < -6 || encParam->beta_offset > 6)
-        {
-            return AVCENC_INVALID_BETA_OFFSET;
-        }
-        sliceHdr->slice_beta_offset_div_2 =  encParam->beta_offset;
-    }
-    if (encvid->outOfBandParamSet == TRUE)
-    {
-        sliceHdr->idr_pic_id = 0;
-    }
-    else
-    {
-        sliceHdr->idr_pic_id = (uint)(-1); /* start with zero */
-    }
-    sliceHdr->field_pic_flag = FALSE;
-    sliceHdr->bottom_field_flag = FALSE;  /* won't be used anyway */
-    video->MbaffFrameFlag = (seqParam->mb_adaptive_frame_field_flag && !sliceHdr->field_pic_flag);
-
-    /* the rest will be set in InitSlice() */
-
-    /* now the rate control and performance related parameters */
-    rateCtrl->scdEnable = (encParam->auto_scd == AVC_ON) ? TRUE : FALSE;
-    rateCtrl->idrPeriod = encParam->idr_period + 1;
-    rateCtrl->intraMBRate = encParam->intramb_refresh;
-    rateCtrl->dpEnable = (encParam->data_par == AVC_ON) ? TRUE : FALSE;
-
-    rateCtrl->subPelEnable = (encParam->sub_pel == AVC_ON) ? TRUE : FALSE;
-    rateCtrl->mvRange = encParam->search_range;
-
-    rateCtrl->subMBEnable = (encParam->submb_pred == AVC_ON) ? TRUE : FALSE;
-    rateCtrl->rdOptEnable = (encParam->rdopt_mode == AVC_ON) ? TRUE : FALSE;
-    rateCtrl->bidirPred = (encParam->bidir_pred == AVC_ON) ? TRUE : FALSE;
-
-    rateCtrl->rcEnable = (encParam->rate_control == AVC_ON) ? TRUE : FALSE;
-    rateCtrl->initQP = encParam->initQP;
-    rateCtrl->initQP = AVC_CLIP3(0, 51, rateCtrl->initQP);
-
-    rateCtrl->bitRate = encParam->bitrate;
-    rateCtrl->cpbSize = encParam->CPB_size;
-    rateCtrl->initDelayOffset = (rateCtrl->bitRate * encParam->init_CBP_removal_delay / 1000);
-
-    if (encParam->frame_rate == 0)
-    {
-        return AVCENC_INVALID_FRAMERATE;
-    }
-
-    rateCtrl->frame_rate = (OsclFloat)(encParam->frame_rate * 1.0 / 1000);
-//  rateCtrl->srcInterval = encParam->src_interval;
-    rateCtrl->first_frame = 1; /* set this flag for the first time */
-
-    /* contrained_setx_flag will be set inside the VerifyProfile called below.*/
-    if (!extS && !extP)
-    {
-        seqParam->profile_idc = encParam->profile;
-        seqParam->constrained_set0_flag = FALSE;
-        seqParam->constrained_set1_flag = FALSE;
-        seqParam->constrained_set2_flag = FALSE;
-        seqParam->constrained_set3_flag = FALSE;
-        seqParam->level_idc = encParam->level;
-    }
-    else
-    {
-        seqParam->profile_idc = extS->profile_idc;
-        seqParam->constrained_set0_flag = extS->constrained_set0_flag;
-        seqParam->constrained_set1_flag = extS->constrained_set1_flag;
-        seqParam->constrained_set2_flag = extS->constrained_set2_flag;
-        seqParam->constrained_set3_flag = extS->constrained_set3_flag;
-        seqParam->level_idc = extS->level_idc;
-    }
-
-
-    status = VerifyProfile(encvid, seqParam, picParam);
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    status = VerifyLevel(encvid, seqParam, picParam);
-    if (status != AVCENC_SUCCESS)
-    {
-        return status;
-    }
-
-    return AVCENC_SUCCESS;
-}
-
-/* verify the profile setting */
-AVCEnc_Status VerifyProfile(AVCEncObject *encvid, AVCSeqParamSet *seqParam, AVCPicParamSet *picParam)
-{
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    AVCEnc_Status status = AVCENC_SUCCESS;
-
-    if (seqParam->profile_idc == 0) /* find profile for this setting */
-    {
-        /* find the right profile for it */
-        if (seqParam->direct_8x8_inference_flag == TRUE &&
-                picParam->entropy_coding_mode_flag == FALSE &&
-                picParam->num_slice_groups_minus1 <= 7 /*&&
-            picParam->num_slice_groups_minus1>=0 (no need, it's unsigned) */)
-        {
-            seqParam->profile_idc = AVC_EXTENDED;
-            seqParam->constrained_set2_flag = TRUE;
-        }
-
-        if (rateCtrl->dpEnable == FALSE &&
-                picParam->num_slice_groups_minus1 == 0 &&
-                picParam->redundant_pic_cnt_present_flag == FALSE)
-        {
-            seqParam->profile_idc = AVC_MAIN;
-            seqParam->constrained_set1_flag = TRUE;
-        }
-
-        if (rateCtrl->bidirPred == FALSE &&
-                rateCtrl->dpEnable == FALSE &&
-                seqParam->frame_mbs_only_flag == TRUE &&
-                picParam->weighted_pred_flag == FALSE &&
-                picParam->weighted_bipred_idc == 0 &&
-                picParam->entropy_coding_mode_flag == FALSE &&
-                picParam->num_slice_groups_minus1 <= 7 /*&&
-            picParam->num_slice_groups_minus1>=0 (no need, it's unsigned)*/)
-        {
-            seqParam->profile_idc = AVC_BASELINE;
-            seqParam->constrained_set0_flag = TRUE;
-        }
-
-        if (seqParam->profile_idc == 0) /* still zero */
-        {
-            return AVCENC_PROFILE_NOT_SUPPORTED;
-        }
-    }
-
-    /* check the list of supported profile by this library */
-    switch (seqParam->profile_idc)
-    {
-        case AVC_BASELINE:
-            if (rateCtrl->bidirPred == TRUE ||
-                    rateCtrl->dpEnable == TRUE ||
-                    seqParam->frame_mbs_only_flag != TRUE ||
-                    picParam->weighted_pred_flag == TRUE ||
-                    picParam->weighted_bipred_idc != 0 ||
-                    picParam->entropy_coding_mode_flag == TRUE ||
-                    picParam->num_slice_groups_minus1 > 7 /*||
-            picParam->num_slice_groups_minus1<0 (no need, it's unsigned) */)
-            {
-                status = AVCENC_TOOLS_NOT_SUPPORTED;
-            }
-            break;
-
-        case AVC_MAIN:
-        case AVC_EXTENDED:
-            status = AVCENC_PROFILE_NOT_SUPPORTED;
-    }
-
-    return status;
-}
-
-/* verify the level setting */
-AVCEnc_Status VerifyLevel(AVCEncObject *encvid, AVCSeqParamSet *seqParam, AVCPicParamSet *picParam)
-{
-    (void)(picParam);
-
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    AVCCommonObj *video = encvid->common;
-    int mb_per_sec, ii;
-    int lev_idx;
-    int dpb_size;
-
-    mb_per_sec = (int)(video->PicSizeInMbs * rateCtrl->frame_rate + 0.5);
-    dpb_size = (seqParam->num_ref_frames * video->PicSizeInMbs * 3) >> 6;
-
-    if (seqParam->level_idc == 0) /* find level for this setting */
-    {
-        for (ii = 0; ii < MAX_LEVEL_IDX; ii++)
-        {
-            if (mb_per_sec <= MaxMBPS[ii] &&
-                    video->PicSizeInMbs <= (uint)MaxFS[ii] &&
-                    rateCtrl->bitRate <= (int32)MaxBR[ii]*1000 &&
-                    rateCtrl->cpbSize <= (int32)MaxCPB[ii]*1000 &&
-                    rateCtrl->mvRange <= MaxVmvR[ii] &&
-                    dpb_size <= MaxDPBX2[ii]*512)
-            {
-                seqParam->level_idc = mapIdx2Lev[ii];
-                break;
-            }
-        }
-        if (seqParam->level_idc == 0)
-        {
-            return AVCENC_LEVEL_NOT_SUPPORTED;
-        }
-    }
-
-    /* check if this level is supported by this library */
-    lev_idx = mapLev2Idx[seqParam->level_idc];
-    if (seqParam->level_idc == AVC_LEVEL1_B)
-    {
-        seqParam->constrained_set3_flag = 1;
-    }
-
-
-    if (lev_idx == 255) /* not defined */
-    {
-        return AVCENC_LEVEL_NOT_SUPPORTED;
-    }
-
-    /* check if the encoding setting complies with the level */
-    if (mb_per_sec > MaxMBPS[lev_idx] ||
-            video->PicSizeInMbs > (uint)MaxFS[lev_idx] ||
-            rateCtrl->bitRate > (int32)MaxBR[lev_idx]*1000 ||
-            rateCtrl->cpbSize > (int32)MaxCPB[lev_idx]*1000 ||
-            rateCtrl->mvRange > MaxVmvR[lev_idx])
-    {
-        return AVCENC_LEVEL_FAIL;
-    }
-
-    return AVCENC_SUCCESS;
-}
-
-/* initialize variables at the beginning of each frame */
-/* determine the picture type */
-/* encode POC */
-/* maybe we should do more stuff here. MotionEstimation+SCD and generate a new SPS and PPS */
-AVCEnc_Status InitFrame(AVCEncObject *encvid)
-{
-    AVCStatus ret;
-    AVCEnc_Status status;
-    AVCCommonObj *video = encvid->common;
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-
-    /* look for the next frame in coding_order and look for available picture
-       in the DPB. Note, video->currFS->PicOrderCnt, currFS->FrameNum and currPic->PicNum
-       are set to wrong number in this function (right for decoder). */
-    if (video->nal_unit_type == AVC_NALTYPE_IDR)
-    {
-        // call init DPB in here.
-        ret = AVCConfigureSequence(encvid->avcHandle, video, TRUE);
-        if (ret != AVC_SUCCESS)
-        {
-            return AVCENC_FAIL;
-        }
-    }
-
-    /* flexible macroblock ordering (every frame)*/
-    /* populate video->mapUnitToSliceGroupMap and video->MbToSliceGroupMap */
-    /* It changes once per each PPS. */
-    FMOInit(video);
-
-    ret = DPBInitBuffer(encvid->avcHandle, video); // get new buffer
-
-    if (ret != AVC_SUCCESS)
-    {
-        return (AVCEnc_Status)ret; // AVCENC_PICTURE_READY, FAIL
-    }
-
-    DPBInitPic(video, 0); /* 0 is dummy */
-
-    /************* determine picture type IDR or non-IDR ***********/
-    video->currPicType = AVC_FRAME;
-    video->slice_data_partitioning = FALSE;
-    encvid->currInput->is_reference = 1; /* default to all frames */
-    video->nal_ref_idc = 1;  /* need to set this for InitPOC */
-    video->currPic->isReference = TRUE;
-
-    /************* set frame_num ********************/
-    if (video->nal_unit_type == AVC_NALTYPE_IDR)
-    {
-        video->prevFrameNum = video->MaxFrameNum;
-        video->PrevRefFrameNum = 0;
-        sliceHdr->frame_num = 0;
-    }
-    /* otherwise, it's set to previous reference frame access unit's frame_num in decoding order,
-       see the end of PVAVCDecodeSlice()*/
-    /* There's also restriction on the frame_num, see page 59 of JVT-I1010.doc. */
-    /* Basically, frame_num can't be repeated unless it's opposite fields or non reference fields */
-    else
-    {
-        sliceHdr->frame_num = (video->PrevRefFrameNum + 1) % video->MaxFrameNum;
-    }
-    video->CurrPicNum = sliceHdr->frame_num;  /* for field_pic_flag = 0 */
-    //video->CurrPicNum = 2*sliceHdr->frame_num + 1; /* for field_pic_flag = 1 */
-
-    /* assign pic_order_cnt, video->PicOrderCnt */
-    status = InitPOC(encvid);
-    if (status != AVCENC_SUCCESS)  /* incorrigable fail */
-    {
-        return status;
-    }
-
-    /* Initialize refListIdx for this picture */
-    RefListInit(video);
-
-    /************* motion estimation and scene analysis ************/
-    // , to move this to MB-based MV search for comparison
-    // use sub-optimal QP for mv search
-    AVCMotionEstimation(encvid);  /* AVCENC_SUCCESS or AVCENC_NEW_IDR */
-
-    /* after this point, the picture type will be fixed to either IDR or non-IDR */
-    video->currFS->PicOrderCnt = video->PicOrderCnt;
-    video->currFS->FrameNum = video->sliceHdr->frame_num;
-    video->currPic->PicNum = video->CurrPicNum;
-    video->mbNum = 0; /* start from zero MB */
-    encvid->currSliceGroup = 0; /* start from slice group #0 */
-    encvid->numIntraMB = 0; /* reset this counter */
-
-    if (video->nal_unit_type == AVC_NALTYPE_IDR)
-    {
-        RCInitGOP(encvid);
-
-        /* calculate picture QP */
-        RCInitFrameQP(encvid);
-
-        return AVCENC_NEW_IDR;
-    }
-
-    /* calculate picture QP */
-    RCInitFrameQP(encvid); /* get QP after MV search */
-
-    return AVCENC_SUCCESS;
-}
-
-/* initialize variables for this slice */
-AVCEnc_Status InitSlice(AVCEncObject *encvid)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    AVCPicParamSet *currPPS = video->currPicParams;
-    AVCSeqParamSet *currSPS = video->currSeqParams;
-    int slice_type = video->slice_type;
-
-    sliceHdr->first_mb_in_slice = video->mbNum;
-    if (video->mbNum) // not first slice of a frame
-    {
-        video->sliceHdr->slice_type = (AVCSliceType)slice_type;
-    }
-
-    /* sliceHdr->slice_type already set in InitFrame */
-
-    sliceHdr->pic_parameter_set_id = video->currPicParams->pic_parameter_set_id;
-
-    /* sliceHdr->frame_num already set in InitFrame */
-
-    if (!currSPS->frame_mbs_only_flag)  /* we shouldn't need this check */
-    {
-        sliceHdr->field_pic_flag = sliceHdr->bottom_field_flag = FALSE;
-        return AVCENC_TOOLS_NOT_SUPPORTED;
-    }
-
-    /* sliceHdr->idr_pic_id already set in PVAVCEncodeNAL
-
-     sliceHdr->pic_order_cnt_lsb already set in InitFrame..InitPOC
-     sliceHdr->delta_pic_order_cnt_bottom  already set in InitPOC
-
-    sliceHdr->delta_pic_order_cnt[0] already set in InitPOC
-    sliceHdr->delta_pic_order_cnt[1] already set in InitPOC
-    */
-
-    sliceHdr->redundant_pic_cnt = 0; /* default if(currPPS->redundant_pic_cnt_present_flag), range 0..127 */
-    sliceHdr->direct_spatial_mv_pred_flag = 0; // default if(slice_type == AVC_B_SLICE)
-
-    sliceHdr->num_ref_idx_active_override_flag = FALSE; /* default, if(slice_type== P,SP or B)*/
-    sliceHdr->num_ref_idx_l0_active_minus1 = 0; /* default, if (num_ref_idx_active_override_flag) */
-    sliceHdr->num_ref_idx_l1_active_minus1 = 0; /* default, if above and B_slice */
-    /* the above 2 values range from 0..15 for frame picture and 0..31 for field picture */
-
-    /* ref_pic_list_reordering(), currently we don't do anything */
-    sliceHdr->ref_pic_list_reordering_flag_l0 = FALSE; /* default */
-    sliceHdr->ref_pic_list_reordering_flag_l1 = FALSE; /* default */
-    /* if the above are TRUE, some other params must be set */
-
-    if ((currPPS->weighted_pred_flag && (slice_type == AVC_P_SLICE || slice_type == AVC_SP_SLICE)) ||
-            (currPPS->weighted_bipred_idc == 1 && slice_type == AVC_B_SLICE))
-    {
-        //      pred_weight_table(); // not supported !!
-        return AVCENC_TOOLS_NOT_SUPPORTED;
-    }
-
-    /* dec_ref_pic_marking(), this will be done later*/
-    sliceHdr->no_output_of_prior_pics_flag = FALSE; /* default */
-    sliceHdr->long_term_reference_flag = FALSE; /* for IDR frame, do not make it long term */
-    sliceHdr->adaptive_ref_pic_marking_mode_flag = FALSE; /* default */
-    /* other params are not set here because they are not used */
-
-    sliceHdr->cabac_init_idc = 0; /* default, if entropy_coding_mode_flag && slice_type==I or SI, range 0..2  */
-    sliceHdr->slice_qp_delta = 0; /* default for now */
-    sliceHdr->sp_for_switch_flag = FALSE; /* default, if slice_type == SP */
-    sliceHdr->slice_qs_delta = 0; /* default, if slice_type == SP or SI */
-
-    /* derived variables from encParam */
-    /* deblocking filter */
-    video->FilterOffsetA = video->FilterOffsetB = 0;
-    if (currPPS->deblocking_filter_control_present_flag == TRUE)
-    {
-        video->FilterOffsetA = sliceHdr->slice_alpha_c0_offset_div2 << 1;
-        video->FilterOffsetB = sliceHdr->slice_beta_offset_div_2 << 1;
-    }
-
-    /* flexible macroblock ordering */
-    /* populate video->mapUnitToSliceGroupMap and video->MbToSliceGroupMap */
-    /* We already call it at the end of PVAVCEncInitialize(). It changes once per each PPS. */
-    if (video->currPicParams->num_slice_groups_minus1 > 0 && video->currPicParams->slice_group_map_type >= 3
-            && video->currPicParams->slice_group_map_type <= 5)
-    {
-        sliceHdr->slice_group_change_cycle = SLICE_GROUP_CHANGE_CYCLE;  /* default, don't understand how to set it!!!*/
-
-        video->MapUnitsInSliceGroup0 =
-            AVC_MIN(sliceHdr->slice_group_change_cycle * video->SliceGroupChangeRate, video->PicSizeInMapUnits);
-
-        FMOInit(video);
-    }
-
-    /* calculate SliceQPy first  */
-    /* calculate QSy first */
-
-    sliceHdr->slice_qp_delta = video->QPy - 26 - currPPS->pic_init_qp_minus26;
-    //sliceHdr->slice_qs_delta = video->QSy - 26 - currPPS->pic_init_qs_minus26;
-
-    return AVCENC_SUCCESS;
-}
-
diff --git a/media/libstagefright/codecs/avc/enc/src/intra_est.cpp b/media/libstagefright/codecs/avc/enc/src/intra_est.cpp
deleted file mode 100644
index 17e5985..0000000
--- a/media/libstagefright/codecs/avc/enc/src/intra_est.cpp
+++ /dev/null
@@ -1,2199 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-
-#define TH_I4  0  /* threshold biasing toward I16 mode instead of I4 mode */
-#define TH_Intra  0 /* threshold biasing toward INTER mode instead of intra mode */
-
-#define FIXED_INTRAPRED_MODE  AVC_I16
-#define FIXED_I16_MODE  AVC_I16_DC
-#define FIXED_I4_MODE   AVC_I4_Diagonal_Down_Left
-#define FIXED_INTRA_CHROMA_MODE AVC_IC_DC
-
-#define CLIP_RESULT(x)      if((uint)x > 0xFF){ \
-                 x = 0xFF & (~(x>>31));}
-
-
-bool IntraDecisionABE(AVCEncObject *encvid, int min_cost, uint8 *curL, int picPitch)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCFrameIO *currInput = encvid->currInput;
-    int orgPitch = currInput->pitch;
-    int x_pos = (video->mb_x) << 4;
-    int y_pos = (video->mb_y) << 4;
-    uint8 *orgY = currInput->YCbCr[0] + y_pos * orgPitch + x_pos;
-    int j;
-    uint8 *topL, *leftL, *orgY_2, *orgY_3;
-    int temp, SBE, offset;
-    OsclFloat ABE;
-    bool intra = true;
-
-    if (((x_pos >> 4) != (int)video->PicWidthInMbs - 1) &&
-            ((y_pos >> 4) != (int)video->PicHeightInMbs - 1) &&
-            video->intraAvailA &&
-            video->intraAvailB)
-    {
-        SBE = 0;
-        /* top neighbor */
-        topL = curL - picPitch;
-        /* left neighbor */
-        leftL = curL - 1;
-        orgY_2 = orgY - orgPitch;
-
-        for (j = 0; j < 16; j++)
-        {
-            temp = *topL++ - orgY[j];
-            SBE += ((temp >= 0) ? temp : -temp);
-            temp = *(leftL += picPitch) - *(orgY_2 += orgPitch);
-            SBE += ((temp >= 0) ? temp : -temp);
-        }
-
-        /* calculate chroma */
-        offset = (y_pos >> 2) * picPitch + (x_pos >> 1);
-        topL = video->currPic->Scb + offset;
-        orgY_2 = currInput->YCbCr[1] + offset + (y_pos >> 2) * (orgPitch - picPitch);
-
-        leftL = topL - 1;
-        topL -= (picPitch >> 1);
-        orgY_3 = orgY_2 - (orgPitch >> 1);
-        for (j = 0; j < 8; j++)
-        {
-            temp = *topL++ - orgY_2[j];
-            SBE += ((temp >= 0) ? temp : -temp);
-            temp = *(leftL += (picPitch >> 1)) - *(orgY_3 += (orgPitch >> 1));
-            SBE += ((temp >= 0) ? temp : -temp);
-        }
-
-        topL = video->currPic->Scr + offset;
-        orgY_2 = currInput->YCbCr[2] + offset + (y_pos >> 2) * (orgPitch - picPitch);
-
-        leftL = topL - 1;
-        topL -= (picPitch >> 1);
-        orgY_3 = orgY_2 - (orgPitch >> 1);
-        for (j = 0; j < 8; j++)
-        {
-            temp = *topL++ - orgY_2[j];
-            SBE += ((temp >= 0) ? temp : -temp);
-            temp = *(leftL += (picPitch >> 1)) - *(orgY_3 += (orgPitch >> 1));
-            SBE += ((temp >= 0) ? temp : -temp);
-        }
-
-        /* compare mincost/384 and SBE/64 */
-        ABE = SBE / 64.0;
-        if (ABE*0.8 >= min_cost / 384.0)
-        {
-            intra = false;
-        }
-    }
-
-    return intra;
-}
-
-/* perform searching for MB mode */
-/* assuming that this is done inside the encoding loop,
-no need to call InitNeighborAvailability */
-
-void MBIntraSearch(AVCEncObject *encvid, int mbnum, uint8 *curL, int picPitch)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCFrameIO *currInput = encvid->currInput;
-    AVCMacroblock *currMB = video->currMB;
-    int min_cost;
-    uint8 *orgY;
-    int x_pos = (video->mb_x) << 4;
-    int y_pos = (video->mb_y) << 4;
-    uint32 *saved_inter;
-    int j;
-    int orgPitch = currInput->pitch;
-    bool intra = true;
-
-    currMB->CBP = 0;
-
-    /* first do motion vector and variable block size search */
-    min_cost = encvid->min_cost[mbnum];
-
-    /* now perform intra prediction search */
-    /* need to add the check for encvid->intraSearch[video->mbNum] to skip intra
-       if it's not worth checking. */
-    if (video->slice_type == AVC_P_SLICE)
-    {
-        /* Decide whether intra search is necessary or not */
-        /* This one, we do it in the encoding loop so the neighboring pixel are the
-        actual reconstructed pixels. */
-        intra = IntraDecisionABE(encvid, min_cost, curL, picPitch);
-    }
-
-    if (intra == true || video->slice_type == AVC_I_SLICE)
-    {
-        orgY = currInput->YCbCr[0] + y_pos * orgPitch + x_pos;
-
-        /* i16 mode search */
-        /* generate all the predictions */
-        intrapred_luma_16x16(encvid);
-
-        /* evaluate them one by one */
-        find_cost_16x16(encvid, orgY, &min_cost);
-
-        if (video->slice_type == AVC_P_SLICE)
-        {
-            /* save current inter prediction */
-            saved_inter = encvid->subpel_pred; /* reuse existing buffer */
-            j = 16;
-            curL -= 4;
-            picPitch -= 16;
-            while (j--)
-            {
-                *saved_inter++ = *((uint32*)(curL += 4));
-                *saved_inter++ = *((uint32*)(curL += 4));
-                *saved_inter++ = *((uint32*)(curL += 4));
-                *saved_inter++ = *((uint32*)(curL += 4));
-                curL += picPitch;
-            }
-
-        }
-
-        /* i4 mode search */
-        mb_intra4x4_search(encvid, &min_cost);
-
-        encvid->min_cost[mbnum] = min_cost; /* update min_cost */
-    }
-
-
-    if (currMB->mb_intra)
-    {
-        chroma_intra_search(encvid);
-
-        /* need to set this in order for the MBInterPrediction to work!! */
-        memset(currMB->mvL0, 0, sizeof(int32)*16);
-        currMB->ref_idx_L0[0] = currMB->ref_idx_L0[1] =
-                                    currMB->ref_idx_L0[2] = currMB->ref_idx_L0[3] = -1;
-    }
-    else if (video->slice_type == AVC_P_SLICE && intra == true)
-    {
-        /* restore current inter prediction */
-        saved_inter = encvid->subpel_pred; /* reuse existing buffer */
-        j = 16;
-        curL -= ((picPitch + 16) << 4);
-        while (j--)
-        {
-            *((uint32*)(curL += 4)) = *saved_inter++;
-            *((uint32*)(curL += 4)) = *saved_inter++;
-            *((uint32*)(curL += 4)) = *saved_inter++;
-            *((uint32*)(curL += 4)) = *saved_inter++;
-            curL += picPitch;
-        }
-    }
-
-    return ;
-}
-
-/* generate all the prediction values */
-void intrapred_luma_16x16(AVCEncObject *encvid)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCPictureData *currPic = video->currPic;
-
-    int x_pos = (video->mb_x) << 4;
-    int y_pos = (video->mb_y) << 4;
-    int pitch = currPic->pitch;
-
-    int offset = y_pos * pitch + x_pos;
-
-    uint8 *pred, *top, *left;
-    uint8 *curL = currPic->Sl + offset; /* point to reconstructed frame */
-    uint32 word1, word2, word3, word4;
-    uint32 sum = 0;
-
-    int a_16, b, c, factor_c;
-    uint8 *comp_ref_x0, *comp_ref_x1, *comp_ref_y0, *comp_ref_y1;
-    int H = 0, V = 0, tmp, value;
-    int i;
-
-    if (video->intraAvailB)
-    {
-        //get vertical prediction mode
-        top = curL - pitch;
-
-        pred = encvid->pred_i16[AVC_I16_Vertical] - 16;
-
-        word1 = *((uint32*)(top));  /* read 4 bytes from top */
-        word2 = *((uint32*)(top + 4)); /* read 4 bytes from top */
-        word3 = *((uint32*)(top + 8)); /* read 4 bytes from top */
-        word4 = *((uint32*)(top + 12)); /* read 4 bytes from top */
-
-        for (i = 0; i < 16; i++)
-        {
-            *((uint32*)(pred += 16)) = word1;
-            *((uint32*)(pred + 4)) = word2;
-            *((uint32*)(pred + 8)) = word3;
-            *((uint32*)(pred + 12)) = word4;
-
-        }
-
-        sum = word1 & 0xFF00FF;
-        word1 = (word1 >> 8) & 0xFF00FF;
-        sum += word1;
-        word1 = (word2 & 0xFF00FF);
-        sum += word1;
-        word2 = (word2 >> 8) & 0xFF00FF;
-        sum += word2;
-        word1 = (word3 & 0xFF00FF);
-        sum += word1;
-        word3 = (word3 >> 8) & 0xFF00FF;
-        sum += word3;
-        word1 = (word4 & 0xFF00FF);
-        sum += word1;
-        word4 = (word4 >> 8) & 0xFF00FF;
-        sum += word4;
-
-        sum += (sum >> 16);
-        sum &= 0xFFFF;
-
-        if (!video->intraAvailA)
-        {
-            sum = (sum + 8) >> 4;
-        }
-    }
-
-    if (video->intraAvailA)
-    {
-        // get horizontal mode
-        left = curL - 1 - pitch;
-
-        pred = encvid->pred_i16[AVC_I16_Horizontal] - 16;
-
-        for (i = 0; i < 16; i++)
-        {
-            word1 = *(left += pitch);
-            sum += word1;
-
-            word1 = (word1 << 8) | word1;
-            word1 = (word1 << 16) | word1; /* make it 4 */
-
-            *(uint32*)(pred += 16) = word1;
-            *(uint32*)(pred + 4) = word1;
-            *(uint32*)(pred + 8) = word1;
-            *(uint32*)(pred + 12) = word1;
-        }
-
-        if (!video->intraAvailB)
-        {
-            sum = (sum + 8) >> 4;
-        }
-        else
-        {
-            sum = (sum + 16) >> 5;
-        }
-    }
-
-    // get DC mode
-    if (!video->intraAvailA && !video->intraAvailB)
-    {
-        sum = 0x80808080;
-    }
-    else
-    {
-        sum = (sum << 8) | sum;
-        sum = (sum << 16) | sum;
-    }
-
-    pred = encvid->pred_i16[AVC_I16_DC] - 16;
-    for (i = 0; i < 16; i++)
-    {
-        *((uint32*)(pred += 16)) = sum;
-        *((uint32*)(pred + 4)) = sum;
-        *((uint32*)(pred + 8)) = sum;
-        *((uint32*)(pred + 12)) = sum;
-    }
-
-    // get plane mode
-    if (video->intraAvailA && video->intraAvailB && video->intraAvailD)
-    {
-        pred = encvid->pred_i16[AVC_I16_Plane] - 16;
-
-        comp_ref_x0 = curL - pitch + 8;
-        comp_ref_x1 = curL - pitch + 6;
-        comp_ref_y0 = curL - 1 + (pitch << 3);
-        comp_ref_y1 = curL - 1 + 6 * pitch;
-
-        for (i = 1; i < 8; i++)
-        {
-            H += i * (*comp_ref_x0++ - *comp_ref_x1--);
-            V += i * (*comp_ref_y0 - *comp_ref_y1);
-            comp_ref_y0 += pitch;
-            comp_ref_y1 -= pitch;
-        }
-
-        H += i * (*comp_ref_x0++ - curL[-pitch-1]);
-        V += i * (*comp_ref_y0 - *comp_ref_y1);
-
-
-        a_16 = ((*(curL - pitch + 15) + *(curL - 1 + 15 * pitch)) << 4) + 16;;
-        b = (5 * H + 32) >> 6;
-        c = (5 * V + 32) >> 6;
-
-        tmp = 0;
-        for (i = 0; i < 16; i++)
-        {
-            factor_c = a_16 + c * (tmp++ - 7);
-            factor_c -= 7 * b;
-
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = value;
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 8);
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 16);
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 24);
-            *((uint32*)(pred += 16)) = word1;
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = value;
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 8);
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 16);
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 24);
-            *((uint32*)(pred + 4)) = word1;
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = value;
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 8);
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 16);
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 24);
-            *((uint32*)(pred + 8)) = word1;
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = value;
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 8);
-            value = factor_c >> 5;
-            factor_c += b;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 16);
-            value = factor_c >> 5;
-            CLIP_RESULT(value)
-            word1 = (word1) | (value << 24);
-            *((uint32*)(pred + 12)) = word1;
-        }
-    }
-
-    return ;
-}
-
-
-/* evaluate each prediction mode of I16 */
-void find_cost_16x16(AVCEncObject *encvid, uint8 *orgY, int *min_cost)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCMacroblock *currMB = video->currMB;
-    int cost;
-    int org_pitch = encvid->currInput->pitch;
-
-    /* evaluate vertical mode */
-    if (video->intraAvailB)
-    {
-        cost = cost_i16(orgY, org_pitch, encvid->pred_i16[AVC_I16_Vertical], *min_cost);
-        if (cost < *min_cost)
-        {
-            *min_cost = cost;
-            currMB->mbMode = AVC_I16;
-            currMB->mb_intra = 1;
-            currMB->i16Mode = AVC_I16_Vertical;
-        }
-    }
-
-
-    /* evaluate horizontal mode */
-    if (video->intraAvailA)
-    {
-        cost = cost_i16(orgY, org_pitch, encvid->pred_i16[AVC_I16_Horizontal], *min_cost);
-        if (cost < *min_cost)
-        {
-            *min_cost = cost;
-            currMB->mbMode = AVC_I16;
-            currMB->mb_intra = 1;
-            currMB->i16Mode = AVC_I16_Horizontal;
-        }
-    }
-
-    /* evaluate DC mode */
-    cost = cost_i16(orgY, org_pitch, encvid->pred_i16[AVC_I16_DC], *min_cost);
-    if (cost < *min_cost)
-    {
-        *min_cost = cost;
-        currMB->mbMode = AVC_I16;
-        currMB->mb_intra = 1;
-        currMB->i16Mode = AVC_I16_DC;
-    }
-
-    /* evaluate plane mode */
-    if (video->intraAvailA && video->intraAvailB && video->intraAvailD)
-    {
-        cost = cost_i16(orgY, org_pitch, encvid->pred_i16[AVC_I16_Plane], *min_cost);
-        if (cost < *min_cost)
-        {
-            *min_cost = cost;
-            currMB->mbMode = AVC_I16;
-            currMB->mb_intra = 1;
-            currMB->i16Mode = AVC_I16_Plane;
-        }
-    }
-
-    return ;
-}
-
-
-int cost_i16(uint8 *org, int org_pitch, uint8 *pred, int min_cost)
-{
-
-    int cost;
-    int j, k;
-    int16 res[256], *pres; // residue
-    int m0, m1, m2, m3;
-
-    // calculate SATD
-    org_pitch -= 16;
-    pres = res;
-    // horizontal transform
-    for (j = 0; j < 16; j++)
-    {
-        k = 4;
-        while (k > 0)
-        {
-            m0 = org[0] - pred[0];
-            m3 = org[3] - pred[3];
-            m0 += m3;
-            m3 = m0 - (m3 << 1);
-            m1 = org[1] - pred[1];
-            m2 = org[2] - pred[2];
-            m1 += m2;
-            m2 = m1 - (m2 << 1);
-            pres[0] = m0 + m1;
-            pres[2] = m0 - m1;
-            pres[1] = m2 + m3;
-            pres[3] = m3 - m2;
-
-            org += 4;
-            pres += 4;
-            pred += 4;
-            k--;
-        }
-        org += org_pitch;
-    }
-    /* vertical transform */
-    cost = 0;
-    for (j = 0; j < 4; j++)
-    {
-        pres = res + (j << 6);
-        k = 16;
-        while (k > 0)
-        {
-            m0 = pres[0];
-            m3 = pres[3<<4];
-            m0 += m3;
-            m3 = m0 - (m3 << 1);
-            m1 = pres[1<<4];
-            m2 = pres[2<<4];
-            m1 += m2;
-            m2 = m1 - (m2 << 1);
-            pres[0] = m0 = m0 + m1;
-
-            if (k&0x3)  // only sum up non DC values.
-            {
-                cost += ((m0 > 0) ? m0 : -m0);
-            }
-
-            m1 = m0 - (m1 << 1);
-            cost += ((m1 > 0) ? m1 : -m1);
-            m3 = m2 + m3;
-            cost += ((m3 > 0) ? m3 : -m3);
-            m2 = m3 - (m2 << 1);
-            cost += ((m2 > 0) ? m2 : -m2);
-
-            pres++;
-            k--;
-        }
-        if ((cost >> 1) > min_cost) /* early drop out */
-        {
-            return (cost >> 1);
-        }
-    }
-
-    /* Hadamard of the DC coefficient */
-    pres = res;
-    k = 4;
-    while (k > 0)
-    {
-        m0 = pres[0];
-        m3 = pres[3<<2];
-        m0 >>= 2;
-        m0 += (m3 >> 2);
-        m3 = m0 - (m3 >> 1);
-        m1 = pres[1<<2];
-        m2 = pres[2<<2];
-        m1 >>= 2;
-        m1 += (m2 >> 2);
-        m2 = m1 - (m2 >> 1);
-        pres[0] = (m0 + m1);
-        pres[2<<2] = (m0 - m1);
-        pres[1<<2] = (m2 + m3);
-        pres[3<<2] = (m3 - m2);
-        pres += (4 << 4);
-        k--;
-    }
-
-    pres = res;
-    k = 4;
-    while (k > 0)
-    {
-        m0 = pres[0];
-        m3 = pres[3<<6];
-        m0 += m3;
-        m3 = m0 - (m3 << 1);
-        m1 = pres[1<<6];
-        m2 = pres[2<<6];
-        m1 += m2;
-        m2 = m1 - (m2 << 1);
-        m0 = m0 + m1;
-        cost += ((m0 >= 0) ? m0 : -m0);
-        m1 = m0 - (m1 << 1);
-        cost += ((m1 >= 0) ? m1 : -m1);
-        m3 = m2 + m3;
-        cost += ((m3 >= 0) ? m3 : -m3);
-        m2 = m3 - (m2 << 1);
-        cost += ((m2 >= 0) ? m2 : -m2);
-        pres += 4;
-
-        if ((cost >> 1) > min_cost) /* early drop out */
-        {
-            return (cost >> 1);
-        }
-
-        k--;
-    }
-
-    return (cost >> 1);
-}
-
-
-void mb_intra4x4_search(AVCEncObject *encvid, int *min_cost)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCMacroblock *currMB = video->currMB;
-    AVCPictureData *currPic = video->currPic;
-    AVCFrameIO *currInput = encvid->currInput;
-    int pitch = currPic->pitch;
-    int org_pitch = currInput->pitch;
-    int offset;
-    uint8 *curL, *comp, *org4, *org8;
-    int y = video->mb_y << 4;
-    int x = video->mb_x << 4;
-
-    int b8, b4, cost4x4, blkidx;
-    int cost = 0;
-    int numcoef;
-    int dummy = 0;
-    int mb_intra = currMB->mb_intra; // save the original value
-
-    offset = y * pitch + x;
-
-    curL = currPic->Sl + offset;
-    org8 = currInput->YCbCr[0] + y * org_pitch + x;
-    video->pred_pitch = 4;
-
-    cost = (int)(6.0 * encvid->lambda_mode + 0.4999);
-    cost <<= 2;
-
-    currMB->mb_intra = 1;  // temporary set this to one to enable the IDCT
-    // operation inside dct_luma
-
-    for (b8 = 0; b8 < 4; b8++)
-    {
-        comp = curL;
-        org4 = org8;
-
-        for (b4 = 0; b4 < 4; b4++)
-        {
-            blkidx = blkIdx2blkXY[b8][b4];
-            cost4x4 = blk_intra4x4_search(encvid, blkidx, comp, org4);
-            cost += cost4x4;
-            if (cost > *min_cost)
-            {
-                currMB->mb_intra = mb_intra; // restore the value
-                return ;
-            }
-
-            /* do residue, Xfrm, Q, invQ, invXfrm, recon and save the DCT coefs.*/
-            video->pred_block = encvid->pred_i4[currMB->i4Mode[blkidx]];
-            numcoef = dct_luma(encvid, blkidx, comp, org4, &dummy);
-            currMB->nz_coeff[blkidx] = numcoef;
-            if (numcoef)
-            {
-                video->cbp4x4 |= (1 << blkidx);
-                currMB->CBP |= (1 << b8);
-            }
-
-            if (b4&1)
-            {
-                comp += ((pitch << 2) - 4);
-                org4 += ((org_pitch << 2) - 4);
-            }
-            else
-            {
-                comp += 4;
-                org4 += 4;
-            }
-        }
-
-        if (b8&1)
-        {
-            curL += ((pitch << 3) - 8);
-            org8 += ((org_pitch << 3) - 8);
-        }
-        else
-        {
-            curL += 8;
-            org8 += 8;
-        }
-    }
-
-    currMB->mb_intra = mb_intra; // restore the value
-
-    if (cost < *min_cost)
-    {
-        *min_cost = cost;
-        currMB->mbMode = AVC_I4;
-        currMB->mb_intra = 1;
-    }
-
-    return ;
-}
-
-
-/* search for i4 mode for a 4x4 block */
-int blk_intra4x4_search(AVCEncObject *encvid, int blkidx, uint8 *cur, uint8 *org)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCNeighborAvailability availability;
-    AVCMacroblock *currMB = video->currMB;
-    bool top_left = FALSE;
-    int pitch = video->currPic->pitch;
-    uint8 mode_avail[AVCNumI4PredMode];
-    uint32 temp, DC;
-    uint8 *pred;
-    int org_pitch = encvid->currInput->pitch;
-    uint16 min_cost, cost;
-
-    int P_x, Q_x, R_x, P_y, Q_y, R_y, D, D0, D1;
-    int P0, Q0, R0, S0, P1, Q1, R1, P2, Q2;
-    uint8 P_A, P_B, P_C, P_D, P_E, P_F, P_G, P_H, P_I, P_J, P_K, P_L, P_X;
-    int r0, r1, r2, r3, r4, r5, r6, r7;
-    int x0, x1, x2, x3, x4, x5;
-    uint32 temp1, temp2;
-
-    int ipmode, mostProbableMode;
-    int fixedcost = 4 * encvid->lambda_mode;
-    int min_sad = 0x7FFF;
-
-    availability.left = TRUE;
-    availability.top = TRUE;
-    if (blkidx <= 3) /* top row block  (!block_y) */
-    { /* check availability up */
-        availability.top = video->intraAvailB ;
-    }
-    if (!(blkidx&0x3)) /* left column block (!block_x)*/
-    { /* check availability left */
-        availability.left = video->intraAvailA ;
-    }
-    availability.top_right = BlkTopRight[blkidx];
-
-    if (availability.top_right == 2)
-    {
-        availability.top_right = video->intraAvailB;
-    }
-    else if (availability.top_right == 3)
-    {
-        availability.top_right = video->intraAvailC;
-    }
-
-    if (availability.top == TRUE)
-    {
-        temp = *(uint32*)(cur - pitch);
-        P_A = temp & 0xFF;
-        P_B = (temp >> 8) & 0xFF;
-        P_C = (temp >> 16) & 0xFF;
-        P_D = (temp >> 24) & 0xFF;
-    }
-    else
-    {
-        P_A = P_B = P_C = P_D = 128;
-    }
-
-    if (availability.top_right == TRUE)
-    {
-        temp = *(uint32*)(cur - pitch + 4);
-        P_E = temp & 0xFF;
-        P_F = (temp >> 8) & 0xFF;
-        P_G = (temp >> 16) & 0xFF;
-        P_H = (temp >> 24) & 0xFF;
-    }
-    else
-    {
-        P_E = P_F = P_G = P_H = 128;
-    }
-
-    if (availability.left == TRUE)
-    {
-        cur--;
-        P_I = *cur;
-        P_J = *(cur += pitch);
-        P_K = *(cur += pitch);
-        P_L = *(cur + pitch);
-        cur -= (pitch << 1);
-        cur++;
-    }
-    else
-    {
-        P_I = P_J = P_K = P_L = 128;
-    }
-
-    /* check if top-left pixel is available */
-    if (((blkidx > 3) && (blkidx&0x3)) || ((blkidx > 3) && video->intraAvailA)
-            || ((blkidx&0x3) && video->intraAvailB)
-            || (video->intraAvailA && video->intraAvailD && video->intraAvailB))
-    {
-        top_left = TRUE;
-        P_X = *(cur - pitch - 1);
-    }
-    else
-    {
-        P_X = 128;
-    }
-
-    //===== INTRA PREDICTION FOR 4x4 BLOCK =====
-    /* vertical */
-    mode_avail[AVC_I4_Vertical] = 0;
-    if (availability.top)
-    {
-        mode_avail[AVC_I4_Vertical] = 1;
-        pred = encvid->pred_i4[AVC_I4_Vertical];
-
-        temp = (P_D << 24) | (P_C << 16) | (P_B << 8) | P_A ;
-        *((uint32*)pred) =  temp; /* write 4 at a time */
-        *((uint32*)(pred += 4)) =  temp;
-        *((uint32*)(pred += 4)) =  temp;
-        *((uint32*)(pred += 4)) =  temp;
-    }
-    /* horizontal */
-    mode_avail[AVC_I4_Horizontal] = 0;
-    mode_avail[AVC_I4_Horizontal_Up] = 0;
-    if (availability.left)
-    {
-        mode_avail[AVC_I4_Horizontal] = 1;
-        pred = encvid->pred_i4[AVC_I4_Horizontal];
-
-        temp = P_I | (P_I << 8);
-        temp = temp | (temp << 16);
-        *((uint32*)pred) = temp;
-        temp = P_J | (P_J << 8);
-        temp = temp | (temp << 16);
-        *((uint32*)(pred += 4)) = temp;
-        temp = P_K | (P_K << 8);
-        temp = temp | (temp << 16);
-        *((uint32*)(pred += 4)) = temp;
-        temp = P_L | (P_L << 8);
-        temp = temp | (temp << 16);
-        *((uint32*)(pred += 4)) = temp;
-
-        mode_avail[AVC_I4_Horizontal_Up] = 1;
-        pred = encvid->pred_i4[AVC_I4_Horizontal_Up];
-
-        Q0 = (P_J + P_K + 1) >> 1;
-        Q1 = (P_J + (P_K << 1) + P_L + 2) >> 2;
-        P0 = ((P_I + P_J + 1) >> 1);
-        P1 = ((P_I + (P_J << 1) + P_K + 2) >> 2);
-
-        temp = P0 | (P1 << 8);      // [P0 P1 Q0 Q1]
-        temp |= (Q0 << 16);     // [Q0 Q1 R0 DO]
-        temp |= (Q1 << 24);     // [R0 D0 D1 D1]
-        *((uint32*)pred) = temp;      // [D1 D1 D1 D1]
-
-        D0 = (P_K + 3 * P_L + 2) >> 2;
-        R0 = (P_K + P_L + 1) >> 1;
-
-        temp = Q0 | (Q1 << 8);
-        temp |= (R0 << 16);
-        temp |= (D0 << 24);
-        *((uint32*)(pred += 4)) = temp;
-
-        D1 = P_L;
-
-        temp = R0 | (D0 << 8);
-        temp |= (D1 << 16);
-        temp |= (D1 << 24);
-        *((uint32*)(pred += 4)) = temp;
-
-        temp = D1 | (D1 << 8);
-        temp |= (temp << 16);
-        *((uint32*)(pred += 4)) = temp;
-    }
-    /* DC */
-    mode_avail[AVC_I4_DC] = 1;
-    pred = encvid->pred_i4[AVC_I4_DC];
-    if (availability.left)
-    {
-        DC = P_I + P_J + P_K + P_L;
-
-        if (availability.top)
-        {
-            DC = (P_A + P_B + P_C + P_D + DC + 4) >> 3;
-        }
-        else
-        {
-            DC = (DC + 2) >> 2;
-
-        }
-    }
-    else if (availability.top)
-    {
-        DC = (P_A + P_B + P_C + P_D + 2) >> 2;
-
-    }
-    else
-    {
-        DC = 128;
-    }
-
-    temp = DC | (DC << 8);
-    temp = temp | (temp << 16);
-    *((uint32*)pred) = temp;
-    *((uint32*)(pred += 4)) = temp;
-    *((uint32*)(pred += 4)) = temp;
-    *((uint32*)(pred += 4)) = temp;
-
-    /* Down-left */
-    mode_avail[AVC_I4_Diagonal_Down_Left] = 0;
-
-    if (availability.top)
-    {
-        mode_avail[AVC_I4_Diagonal_Down_Left] = 1;
-
-        pred = encvid->pred_i4[AVC_I4_Diagonal_Down_Left];
-
-        r0 = P_A;
-        r1 = P_B;
-        r2 = P_C;
-        r3 = P_D;
-
-        r0 += (r1 << 1);
-        r0 += r2;
-        r0 += 2;
-        r0 >>= 2;
-        r1 += (r2 << 1);
-        r1 += r3;
-        r1 += 2;
-        r1 >>= 2;
-
-        if (availability.top_right)
-        {
-            r4 = P_E;
-            r5 = P_F;
-            r6 = P_G;
-            r7 = P_H;
-
-            r2 += (r3 << 1);
-            r2 += r4;
-            r2 += 2;
-            r2 >>= 2;
-            r3 += (r4 << 1);
-            r3 += r5;
-            r3 += 2;
-            r3 >>= 2;
-            r4 += (r5 << 1);
-            r4 += r6;
-            r4 += 2;
-            r4 >>= 2;
-            r5 += (r6 << 1);
-            r5 += r7;
-            r5 += 2;
-            r5 >>= 2;
-            r6 += (3 * r7);
-            r6 += 2;
-            r6 >>= 2;
-            temp = r0 | (r1 << 8);
-            temp |= (r2 << 16);
-            temp |= (r3 << 24);
-            *((uint32*)pred) = temp;
-
-            temp = (temp >> 8) | (r4 << 24);
-            *((uint32*)(pred += 4)) = temp;
-
-            temp = (temp >> 8) | (r5 << 24);
-            *((uint32*)(pred += 4)) = temp;
-
-            temp = (temp >> 8) | (r6 << 24);
-            *((uint32*)(pred += 4)) = temp;
-        }
-        else
-        {
-            r2 += (r3 * 3);
-            r2 += 2;
-            r2 >>= 2;
-            r3 = ((r3 << 2) + 2);
-            r3 >>= 2;
-
-            temp = r0 | (r1 << 8);
-            temp |= (r2 << 16);
-            temp |= (r3 << 24);
-            *((uint32*)pred) = temp;
-
-            temp = (temp >> 8) | (r3 << 24);
-            *((uint32*)(pred += 4)) = temp;
-
-            temp = (temp >> 8) | (r3 << 24);
-            *((uint32*)(pred += 4)) = temp;
-
-            temp = (temp >> 8) | (r3 << 24);
-            *((uint32*)(pred += 4)) = temp;
-
-        }
-    }
-
-    /* Down Right */
-    mode_avail[AVC_I4_Diagonal_Down_Right] = 0;
-    /* Diagonal Vertical Right */
-    mode_avail[AVC_I4_Vertical_Right] = 0;
-    /* Horizontal Down */
-    mode_avail[AVC_I4_Horizontal_Down] = 0;
-
-    if (top_left == TRUE)
-    {
-        /* Down Right */
-        mode_avail[AVC_I4_Diagonal_Down_Right] = 1;
-        pred = encvid->pred_i4[AVC_I4_Diagonal_Down_Right];
-
-        Q_x = (P_A + 2 * P_B + P_C + 2) >> 2;
-        R_x = (P_B + 2 * P_C + P_D + 2) >> 2;
-        P_x = (P_X + 2 * P_A + P_B + 2) >> 2;
-        D   = (P_A + 2 * P_X + P_I + 2) >> 2;
-        P_y = (P_X + 2 * P_I + P_J + 2) >> 2;
-        Q_y = (P_I + 2 * P_J + P_K + 2) >> 2;
-        R_y = (P_J + 2 * P_K + P_L + 2) >> 2;
-
-        /* we can pack these */
-        temp =  D | (P_x << 8);   //[D   P_x Q_x R_x]
-        //[P_y D   P_x Q_x]
-        temp |= (Q_x << 16); //[Q_y P_y D   P_x]
-        temp |= (R_x << 24);  //[R_y Q_y P_y D  ]
-        *((uint32*)pred) = temp;
-
-        temp =  P_y | (D << 8);
-        temp |= (P_x << 16);
-        temp |= (Q_x << 24);
-        *((uint32*)(pred += 4)) = temp;
-
-        temp =  Q_y | (P_y << 8);
-        temp |= (D << 16);
-        temp |= (P_x << 24);
-        *((uint32*)(pred += 4)) = temp;
-
-        temp = R_y | (Q_y << 8);
-        temp |= (P_y << 16);
-        temp |= (D << 24);
-        *((uint32*)(pred += 4)) = temp;
-
-
-        /* Diagonal Vertical Right */
-        mode_avail[AVC_I4_Vertical_Right] = 1;
-        pred = encvid->pred_i4[AVC_I4_Vertical_Right];
-
-        Q0 = P_A + P_B + 1;
-        R0 = P_B + P_C + 1;
-        S0 = P_C + P_D + 1;
-        P0 = P_X + P_A + 1;
-        D = (P_I + 2 * P_X + P_A + 2) >> 2;
-
-        P1 = (P0 + Q0) >> 2;
-        Q1 = (Q0 + R0) >> 2;
-        R1 = (R0 + S0) >> 2;
-
-        P0 >>= 1;
-        Q0 >>= 1;
-        R0 >>= 1;
-        S0 >>= 1;
-
-        P2 = (P_X + 2 * P_I + P_J + 2) >> 2;
-        Q2 = (P_I + 2 * P_J + P_K + 2) >> 2;
-
-        temp =  P0 | (Q0 << 8);  //[P0 Q0 R0 S0]
-        //[D  P1 Q1 R1]
-        temp |= (R0 << 16); //[P2 P0 Q0 R0]
-        temp |= (S0 << 24); //[Q2 D  P1 Q1]
-        *((uint32*)pred) =  temp;
-
-        temp =  D | (P1 << 8);
-        temp |= (Q1 << 16);
-        temp |= (R1 << 24);
-        *((uint32*)(pred += 4)) =  temp;
-
-        temp = P2 | (P0 << 8);
-        temp |= (Q0 << 16);
-        temp |= (R0 << 24);
-        *((uint32*)(pred += 4)) =  temp;
-
-        temp = Q2 | (D << 8);
-        temp |= (P1 << 16);
-        temp |= (Q1 << 24);
-        *((uint32*)(pred += 4)) =  temp;
-
-
-        /* Horizontal Down */
-        mode_avail[AVC_I4_Horizontal_Down] = 1;
-        pred = encvid->pred_i4[AVC_I4_Horizontal_Down];
-
-
-        Q2 = (P_A + 2 * P_B + P_C + 2) >> 2;
-        P2 = (P_X + 2 * P_A + P_B + 2) >> 2;
-        D = (P_I + 2 * P_X + P_A + 2) >> 2;
-        P0 = P_X + P_I + 1;
-        Q0 = P_I + P_J + 1;
-        R0 = P_J + P_K + 1;
-        S0 = P_K + P_L + 1;
-
-        P1 = (P0 + Q0) >> 2;
-        Q1 = (Q0 + R0) >> 2;
-        R1 = (R0 + S0) >> 2;
-
-        P0 >>= 1;
-        Q0 >>= 1;
-        R0 >>= 1;
-        S0 >>= 1;
-
-
-        /* we can pack these */
-        temp = P0 | (D << 8);   //[P0 D  P2 Q2]
-        //[Q0 P1 P0 D ]
-        temp |= (P2 << 16);  //[R0 Q1 Q0 P1]
-        temp |= (Q2 << 24); //[S0 R1 R0 Q1]
-        *((uint32*)pred) = temp;
-
-        temp = Q0 | (P1 << 8);
-        temp |= (P0 << 16);
-        temp |= (D << 24);
-        *((uint32*)(pred += 4)) = temp;
-
-        temp = R0 | (Q1 << 8);
-        temp |= (Q0 << 16);
-        temp |= (P1 << 24);
-        *((uint32*)(pred += 4)) = temp;
-
-        temp = S0 | (R1 << 8);
-        temp |= (R0 << 16);
-        temp |= (Q1 << 24);
-        *((uint32*)(pred += 4)) = temp;
-
-    }
-
-    /* vertical left */
-    mode_avail[AVC_I4_Vertical_Left] = 0;
-    if (availability.top)
-    {
-        mode_avail[AVC_I4_Vertical_Left] = 1;
-        pred = encvid->pred_i4[AVC_I4_Vertical_Left];
-
-        x0 = P_A + P_B + 1;
-        x1 = P_B + P_C + 1;
-        x2 = P_C + P_D + 1;
-        if (availability.top_right)
-        {
-            x3 = P_D + P_E + 1;
-            x4 = P_E + P_F + 1;
-            x5 = P_F + P_G + 1;
-        }
-        else
-        {
-            x3 = x4 = x5 = (P_D << 1) + 1;
-        }
-
-        temp1 = (x0 >> 1);
-        temp1 |= ((x1 >> 1) << 8);
-        temp1 |= ((x2 >> 1) << 16);
-        temp1 |= ((x3 >> 1) << 24);
-
-        *((uint32*)pred) = temp1;
-
-        temp2 = ((x0 + x1) >> 2);
-        temp2 |= (((x1 + x2) >> 2) << 8);
-        temp2 |= (((x2 + x3) >> 2) << 16);
-        temp2 |= (((x3 + x4) >> 2) << 24);
-
-        *((uint32*)(pred += 4)) = temp2;
-
-        temp1 = (temp1 >> 8) | ((x4 >> 1) << 24);   /* rotate out old value */
-        *((uint32*)(pred += 4)) = temp1;
-
-        temp2 = (temp2 >> 8) | (((x4 + x5) >> 2) << 24); /* rotate out old value */
-        *((uint32*)(pred += 4)) = temp2;
-    }
-
-    //===== LOOP OVER ALL 4x4 INTRA PREDICTION MODES =====
-    // can re-order the search here instead of going in order
-
-    // find most probable mode
-    encvid->mostProbableI4Mode[blkidx] = mostProbableMode = FindMostProbableI4Mode(video, blkidx);
-
-    min_cost = 0xFFFF;
-
-    for (ipmode = 0; ipmode < AVCNumI4PredMode; ipmode++)
-    {
-        if (mode_avail[ipmode] == TRUE)
-        {
-            cost  = (ipmode == mostProbableMode) ? 0 : fixedcost;
-            pred = encvid->pred_i4[ipmode];
-
-            cost_i4(org, org_pitch, pred, &cost);
-
-            if (cost < min_cost)
-            {
-                currMB->i4Mode[blkidx] = (AVCIntra4x4PredMode)ipmode;
-                min_cost   = cost;
-                min_sad = cost - ((ipmode == mostProbableMode) ? 0 : fixedcost);
-            }
-        }
-    }
-
-    if (blkidx == 0)
-    {
-        encvid->i4_sad = min_sad;
-    }
-    else
-    {
-        encvid->i4_sad += min_sad;
-    }
-
-    return min_cost;
-}
-
-int FindMostProbableI4Mode(AVCCommonObj *video, int blkidx)
-{
-    int dcOnlyPredictionFlag;
-    AVCMacroblock *currMB = video->currMB;
-    int intra4x4PredModeA, intra4x4PredModeB, predIntra4x4PredMode;
-
-
-    dcOnlyPredictionFlag = 0;
-    if (blkidx&0x3)
-    {
-        intra4x4PredModeA = currMB->i4Mode[blkidx-1]; // block to the left
-    }
-    else /* for blk 0, 4, 8, 12 */
-    {
-        if (video->intraAvailA)
-        {
-            if (video->mblock[video->mbAddrA].mbMode == AVC_I4)
-            {
-                intra4x4PredModeA = video->mblock[video->mbAddrA].i4Mode[blkidx + 3];
-            }
-            else
-            {
-                intra4x4PredModeA = AVC_I4_DC;
-            }
-        }
-        else
-        {
-            dcOnlyPredictionFlag = 1;
-            goto PRED_RESULT_READY;  // skip below
-        }
-    }
-
-    if (blkidx >> 2)
-    {
-        intra4x4PredModeB = currMB->i4Mode[blkidx-4]; // block above
-    }
-    else /* block 0, 1, 2, 3 */
-    {
-        if (video->intraAvailB)
-        {
-            if (video->mblock[video->mbAddrB].mbMode == AVC_I4)
-            {
-                intra4x4PredModeB = video->mblock[video->mbAddrB].i4Mode[blkidx+12];
-            }
-            else
-            {
-                intra4x4PredModeB = AVC_I4_DC;
-            }
-        }
-        else
-        {
-            dcOnlyPredictionFlag = 1;
-        }
-    }
-
-PRED_RESULT_READY:
-    if (dcOnlyPredictionFlag)
-    {
-        intra4x4PredModeA = intra4x4PredModeB = AVC_I4_DC;
-    }
-
-    predIntra4x4PredMode = AVC_MIN(intra4x4PredModeA, intra4x4PredModeB);
-
-    return predIntra4x4PredMode;
-}
-
-void cost_i4(uint8 *org, int org_pitch, uint8 *pred, uint16 *cost)
-{
-    int k;
-    int16 res[16], *pres;
-    int m0, m1, m2, m3, tmp1;
-    int satd = 0;
-
-    pres = res;
-    // horizontal transform
-    k = 4;
-    while (k > 0)
-    {
-        m0 = org[0] - pred[0];
-        m3 = org[3] - pred[3];
-        m0 += m3;
-        m3 = m0 - (m3 << 1);
-        m1 = org[1] - pred[1];
-        m2 = org[2] - pred[2];
-        m1 += m2;
-        m2 = m1 - (m2 << 1);
-        pres[0] = m0 + m1;
-        pres[2] = m0 - m1;
-        pres[1] = m2 + m3;
-        pres[3] = m3 - m2;
-
-        org += org_pitch;
-        pres += 4;
-        pred += 4;
-        k--;
-    }
-    /* vertical transform */
-    pres = res;
-    k = 4;
-    while (k > 0)
-    {
-        m0 = pres[0];
-        m3 = pres[12];
-        m0 += m3;
-        m3 = m0 - (m3 << 1);
-        m1 = pres[4];
-        m2 = pres[8];
-        m1 += m2;
-        m2 = m1 - (m2 << 1);
-        pres[0] = m0 + m1;
-        pres[8] = m0 - m1;
-        pres[4] = m2 + m3;
-        pres[12] = m3 - m2;
-
-        pres++;
-        k--;
-
-    }
-
-    pres = res;
-    k = 4;
-    while (k > 0)
-    {
-        tmp1 = *pres++;
-        satd += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        tmp1 = *pres++;
-        satd += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        tmp1 = *pres++;
-        satd += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        tmp1 = *pres++;
-        satd += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        k--;
-    }
-
-    satd = (satd + 1) >> 1;
-    *cost += satd;
-
-    return ;
-}
-
-void chroma_intra_search(AVCEncObject *encvid)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCPictureData *currPic = video->currPic;
-
-    int x_pos = video->mb_x << 3;
-    int y_pos = video->mb_y << 3;
-    int pitch = currPic->pitch >> 1;
-    int offset = y_pos * pitch + x_pos;
-
-    uint8 *comp_ref_x, *comp_ref_y, *pred;
-    int  sum_x0, sum_x1, sum_y0, sum_y1;
-    int pred_0[2], pred_1[2], pred_2[2], pred_3[2];
-    uint32 pred_a, pred_b, pred_c, pred_d;
-    int i, j, component;
-    int a_16, b, c, factor_c, topleft;
-    int H, V, value;
-    uint8 *comp_ref_x0, *comp_ref_x1,  *comp_ref_y0, *comp_ref_y1;
-
-    uint8 *curCb = currPic->Scb + offset;
-    uint8 *curCr = currPic->Scr + offset;
-
-    uint8 *orgCb, *orgCr;
-    AVCFrameIO *currInput = encvid->currInput;
-    AVCMacroblock *currMB = video->currMB;
-    int org_pitch;
-    int cost, mincost;
-
-    /* evaluate DC mode */
-    if (video->intraAvailB & video->intraAvailA)
-    {
-        comp_ref_x = curCb - pitch;
-        comp_ref_y = curCb - 1;
-
-        for (i = 0; i < 2; i++)
-        {
-            pred_a = *((uint32*)comp_ref_x);
-            comp_ref_x += 4;
-            pred_b = (pred_a >> 8) & 0xFF00FF;
-            pred_a &= 0xFF00FF;
-            pred_a += pred_b;
-            pred_a += (pred_a >> 16);
-            sum_x0 = pred_a & 0xFFFF;
-
-            pred_a = *((uint32*)comp_ref_x);
-            pred_b = (pred_a >> 8) & 0xFF00FF;
-            pred_a &= 0xFF00FF;
-            pred_a += pred_b;
-            pred_a += (pred_a >> 16);
-            sum_x1 = pred_a & 0xFFFF;
-
-            pred_1[i] = (sum_x1 + 2) >> 2;
-
-            sum_y0 = *comp_ref_y;
-            sum_y0 += *(comp_ref_y += pitch);
-            sum_y0 += *(comp_ref_y += pitch);
-            sum_y0 += *(comp_ref_y += pitch);
-
-            sum_y1 = *(comp_ref_y += pitch);
-            sum_y1 += *(comp_ref_y += pitch);
-            sum_y1 += *(comp_ref_y += pitch);
-            sum_y1 += *(comp_ref_y += pitch);
-
-            pred_2[i] = (sum_y1 + 2) >> 2;
-
-            pred_0[i] = (sum_y0 + sum_x0 + 4) >> 3;
-            pred_3[i] = (sum_y1 + sum_x1 + 4) >> 3;
-
-            comp_ref_x = curCr - pitch;
-            comp_ref_y = curCr - 1;
-        }
-    }
-
-    else if (video->intraAvailA)
-    {
-        comp_ref_y = curCb - 1;
-        for (i = 0; i < 2; i++)
-        {
-            sum_y0 = *comp_ref_y;
-            sum_y0 += *(comp_ref_y += pitch);
-            sum_y0 += *(comp_ref_y += pitch);
-            sum_y0 += *(comp_ref_y += pitch);
-
-            sum_y1 = *(comp_ref_y += pitch);
-            sum_y1 += *(comp_ref_y += pitch);
-            sum_y1 += *(comp_ref_y += pitch);
-            sum_y1 += *(comp_ref_y += pitch);
-
-            pred_0[i] = pred_1[i] = (sum_y0 + 2) >> 2;
-            pred_2[i] = pred_3[i] = (sum_y1 + 2) >> 2;
-
-            comp_ref_y = curCr - 1;
-        }
-    }
-    else if (video->intraAvailB)
-    {
-        comp_ref_x = curCb - pitch;
-        for (i = 0; i < 2; i++)
-        {
-            pred_a = *((uint32*)comp_ref_x);
-            comp_ref_x += 4;
-            pred_b = (pred_a >> 8) & 0xFF00FF;
-            pred_a &= 0xFF00FF;
-            pred_a += pred_b;
-            pred_a += (pred_a >> 16);
-            sum_x0 = pred_a & 0xFFFF;
-
-            pred_a = *((uint32*)comp_ref_x);
-            pred_b = (pred_a >> 8) & 0xFF00FF;
-            pred_a &= 0xFF00FF;
-            pred_a += pred_b;
-            pred_a += (pred_a >> 16);
-            sum_x1 = pred_a & 0xFFFF;
-
-            pred_0[i] = pred_2[i] = (sum_x0 + 2) >> 2;
-            pred_1[i] = pred_3[i] = (sum_x1 + 2) >> 2;
-
-            comp_ref_x = curCr - pitch;
-        }
-    }
-    else
-    {
-        pred_0[0] = pred_0[1] = pred_1[0] = pred_1[1] =
-                                                pred_2[0] = pred_2[1] = pred_3[0] = pred_3[1] = 128;
-    }
-
-    pred = encvid->pred_ic[AVC_IC_DC];
-
-    pred_a = pred_0[0];
-    pred_b = pred_1[0];
-    pred_a |= (pred_a << 8);
-    pred_a |= (pred_a << 16);
-    pred_b |= (pred_b << 8);
-    pred_b |= (pred_b << 16);
-
-    pred_c = pred_0[1];
-    pred_d = pred_1[1];
-    pred_c |= (pred_c << 8);
-    pred_c |= (pred_c << 16);
-    pred_d |= (pred_d << 8);
-    pred_d |= (pred_d << 16);
-
-
-    for (j = 0; j < 4; j++) /* 4 lines */
-    {
-        *((uint32*)pred) = pred_a;
-        *((uint32*)(pred + 4)) = pred_b;
-        *((uint32*)(pred + 8)) = pred_c;
-        *((uint32*)(pred + 12)) = pred_d;
-        pred += 16; /* move to the next line */
-    }
-
-    pred_a = pred_2[0];
-    pred_b = pred_3[0];
-    pred_a |= (pred_a << 8);
-    pred_a |= (pred_a << 16);
-    pred_b |= (pred_b << 8);
-    pred_b |= (pred_b << 16);
-
-    pred_c = pred_2[1];
-    pred_d = pred_3[1];
-    pred_c |= (pred_c << 8);
-    pred_c |= (pred_c << 16);
-    pred_d |= (pred_d << 8);
-    pred_d |= (pred_d << 16);
-
-    for (j = 0; j < 4; j++) /* 4 lines */
-    {
-        *((uint32*)pred) = pred_a;
-        *((uint32*)(pred + 4)) = pred_b;
-        *((uint32*)(pred + 8)) = pred_c;
-        *((uint32*)(pred + 12)) = pred_d;
-        pred += 16; /* move to the next line */
-    }
-
-    /* predict horizontal mode */
-    if (video->intraAvailA)
-    {
-        comp_ref_y = curCb - 1;
-        comp_ref_x = curCr - 1;
-        pred = encvid->pred_ic[AVC_IC_Horizontal];
-
-        for (i = 4; i < 6; i++)
-        {
-            for (j = 0; j < 4; j++)
-            {
-                pred_a = *comp_ref_y;
-                comp_ref_y += pitch;
-                pred_a |= (pred_a << 8);
-                pred_a |= (pred_a << 16);
-                *((uint32*)pred) = pred_a;
-                *((uint32*)(pred + 4)) = pred_a;
-
-                pred_a = *comp_ref_x;
-                comp_ref_x += pitch;
-                pred_a |= (pred_a << 8);
-                pred_a |= (pred_a << 16);
-                *((uint32*)(pred + 8)) = pred_a;
-                *((uint32*)(pred + 12)) = pred_a;
-
-                pred += 16;
-            }
-        }
-    }
-
-    /* vertical mode */
-    if (video->intraAvailB)
-    {
-        comp_ref_x = curCb - pitch;
-        comp_ref_y = curCr - pitch;
-        pred = encvid->pred_ic[AVC_IC_Vertical];
-
-        pred_a = *((uint32*)comp_ref_x);
-        pred_b = *((uint32*)(comp_ref_x + 4));
-        pred_c = *((uint32*)comp_ref_y);
-        pred_d = *((uint32*)(comp_ref_y + 4));
-
-        for (j = 0; j < 8; j++)
-        {
-            *((uint32*)pred) = pred_a;
-            *((uint32*)(pred + 4)) = pred_b;
-            *((uint32*)(pred + 8)) = pred_c;
-            *((uint32*)(pred + 12)) = pred_d;
-            pred += 16;
-        }
-    }
-
-    /* Intra_Chroma_Plane */
-    if (video->intraAvailA && video->intraAvailB && video->intraAvailD)
-    {
-        comp_ref_x = curCb - pitch;
-        comp_ref_y = curCb - 1;
-        topleft = curCb[-pitch-1];
-
-        pred = encvid->pred_ic[AVC_IC_Plane];
-        for (component = 0; component < 2; component++)
-        {
-            H = V = 0;
-            comp_ref_x0 = comp_ref_x + 4;
-            comp_ref_x1 = comp_ref_x + 2;
-            comp_ref_y0 = comp_ref_y + (pitch << 2);
-            comp_ref_y1 = comp_ref_y + (pitch << 1);
-            for (i = 1; i < 4; i++)
-            {
-                H += i * (*comp_ref_x0++ - *comp_ref_x1--);
-                V += i * (*comp_ref_y0 - *comp_ref_y1);
-                comp_ref_y0 += pitch;
-                comp_ref_y1 -= pitch;
-            }
-            H += i * (*comp_ref_x0++ - topleft);
-            V += i * (*comp_ref_y0 - *comp_ref_y1);
-
-            a_16 = ((*(comp_ref_x + 7) + *(comp_ref_y + 7 * pitch)) << 4) + 16;
-            b = (17 * H + 16) >> 5;
-            c = (17 * V + 16) >> 5;
-
-            pred_a = 0;
-            for (i = 4; i < 6; i++)
-            {
-                for (j = 0; j < 4; j++)
-                {
-                    factor_c = a_16 + c * (pred_a++ - 3);
-
-                    factor_c -= 3 * b;
-
-                    value = factor_c >> 5;
-                    factor_c += b;
-                    CLIP_RESULT(value)
-                    pred_b = value;
-                    value = factor_c >> 5;
-                    factor_c += b;
-                    CLIP_RESULT(value)
-                    pred_b |= (value << 8);
-                    value = factor_c >> 5;
-                    factor_c += b;
-                    CLIP_RESULT(value)
-                    pred_b |= (value << 16);
-                    value = factor_c >> 5;
-                    factor_c += b;
-                    CLIP_RESULT(value)
-                    pred_b |= (value << 24);
-                    *((uint32*)pred) = pred_b;
-
-                    value = factor_c >> 5;
-                    factor_c += b;
-                    CLIP_RESULT(value)
-                    pred_b = value;
-                    value = factor_c >> 5;
-                    factor_c += b;
-                    CLIP_RESULT(value)
-                    pred_b |= (value << 8);
-                    value = factor_c >> 5;
-                    factor_c += b;
-                    CLIP_RESULT(value)
-                    pred_b |= (value << 16);
-                    value = factor_c >> 5;
-                    factor_c += b;
-                    CLIP_RESULT(value)
-                    pred_b |= (value << 24);
-                    *((uint32*)(pred + 4)) = pred_b;
-                    pred += 16;
-                }
-            }
-
-            pred -= 120; /* point to cr */
-            comp_ref_x = curCr - pitch;
-            comp_ref_y = curCr - 1;
-            topleft = curCr[-pitch-1];
-        }
-    }
-
-    /* now evaluate it */
-
-    org_pitch = (currInput->pitch) >> 1;
-    offset = x_pos + y_pos * org_pitch;
-
-    orgCb = currInput->YCbCr[1] + offset;
-    orgCr = currInput->YCbCr[2] + offset;
-
-    mincost = 0x7fffffff;
-    cost = SATDChroma(orgCb, orgCr, org_pitch, encvid->pred_ic[AVC_IC_DC], mincost);
-    if (cost < mincost)
-    {
-        mincost = cost;
-        currMB->intra_chroma_pred_mode = AVC_IC_DC;
-    }
-
-    if (video->intraAvailA)
-    {
-        cost = SATDChroma(orgCb, orgCr, org_pitch, encvid->pred_ic[AVC_IC_Horizontal], mincost);
-        if (cost < mincost)
-        {
-            mincost = cost;
-            currMB->intra_chroma_pred_mode = AVC_IC_Horizontal;
-        }
-    }
-
-    if (video->intraAvailB)
-    {
-        cost = SATDChroma(orgCb, orgCr, org_pitch, encvid->pred_ic[AVC_IC_Vertical], mincost);
-        if (cost < mincost)
-        {
-            mincost = cost;
-            currMB->intra_chroma_pred_mode = AVC_IC_Vertical;
-        }
-    }
-
-    if (video->intraAvailA && video->intraAvailB && video->intraAvailD)
-    {
-        cost = SATDChroma(orgCb, orgCr, org_pitch, encvid->pred_ic[AVC_IC_Plane], mincost);
-        if (cost < mincost)
-        {
-            mincost = cost;
-            currMB->intra_chroma_pred_mode = AVC_IC_Plane;
-        }
-    }
-
-
-    return ;
-}
-
-
-int SATDChroma(uint8 *orgCb, uint8 *orgCr, int org_pitch, uint8 *pred, int min_cost)
-{
-    int cost;
-    /* first take difference between orgCb, orgCr and pred */
-    int16 res[128], *pres; // residue
-    int m0, m1, m2, m3, tmp1;
-    int j, k;
-
-    pres = res;
-    org_pitch -= 8;
-    // horizontal transform
-    for (j = 0; j < 8; j++)
-    {
-        k = 2;
-        while (k > 0)
-        {
-            m0 = orgCb[0] - pred[0];
-            m3 = orgCb[3] - pred[3];
-            m0 += m3;
-            m3 = m0 - (m3 << 1);
-            m1 = orgCb[1] - pred[1];
-            m2 = orgCb[2] - pred[2];
-            m1 += m2;
-            m2 = m1 - (m2 << 1);
-            pres[0] = m0 + m1;
-            pres[2] = m0 - m1;
-            pres[1] = m2 + m3;
-            pres[3] = m3 - m2;
-
-            orgCb += 4;
-            pres += 4;
-            pred += 4;
-            k--;
-        }
-        orgCb += org_pitch;
-        k = 2;
-        while (k > 0)
-        {
-            m0 = orgCr[0] - pred[0];
-            m3 = orgCr[3] - pred[3];
-            m0 += m3;
-            m3 = m0 - (m3 << 1);
-            m1 = orgCr[1] - pred[1];
-            m2 = orgCr[2] - pred[2];
-            m1 += m2;
-            m2 = m1 - (m2 << 1);
-            pres[0] = m0 + m1;
-            pres[2] = m0 - m1;
-            pres[1] = m2 + m3;
-            pres[3] = m3 - m2;
-
-            orgCr += 4;
-            pres += 4;
-            pred += 4;
-            k--;
-        }
-        orgCr += org_pitch;
-    }
-
-    /* vertical transform */
-    for (j = 0; j < 2; j++)
-    {
-        pres = res + (j << 6);
-        k = 16;
-        while (k > 0)
-        {
-            m0 = pres[0];
-            m3 = pres[3<<4];
-            m0 += m3;
-            m3 = m0 - (m3 << 1);
-            m1 = pres[1<<4];
-            m2 = pres[2<<4];
-            m1 += m2;
-            m2 = m1 - (m2 << 1);
-            pres[0] = m0 + m1;
-            pres[2<<4] = m0 - m1;
-            pres[1<<4] = m2 + m3;
-            pres[3<<4] = m3 - m2;
-
-            pres++;
-            k--;
-        }
-    }
-
-    /* now sum of absolute value */
-    pres = res;
-    cost = 0;
-    k = 128;
-    while (k > 0)
-    {
-        tmp1 = *pres++;
-        cost += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        tmp1 = *pres++;
-        cost += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        tmp1 = *pres++;
-        cost += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        tmp1 = *pres++;
-        cost += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        tmp1 = *pres++;
-        cost += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        tmp1 = *pres++;
-        cost += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        tmp1 = *pres++;
-        cost += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        tmp1 = *pres++;
-        cost += ((tmp1 >= 0) ? tmp1 : -tmp1);
-        k -= 8;
-        if (cost > min_cost) /* early drop out */
-        {
-            return cost;
-        }
-    }
-
-    return cost;
-}
-
-
-
-///////////////////////////////// old code, unused
-/* find the best intra mode based on original (unencoded) frame */
-/* output is
-    currMB->mb_intra, currMB->mbMode,
-    currMB->i16Mode  (if currMB->mbMode == AVC_I16)
-    currMB->i4Mode[..] (if currMB->mbMode == AVC_I4) */
-
-#ifdef FIXED_INTRAPRED_MODE
-void MBIntraSearch(AVCEncObject *encvid, AVCMacroblock *currMB, int mbNum)
-{
-    (void)(mbNum);
-
-    AVCCommonObj *video = encvid->common;
-    int indx, block_x, block_y;
-
-    video->intraAvailA = video->intraAvailB = video->intraAvailC = video->intraAvailD = 0;
-
-    if (!video->currPicParams->constrained_intra_pred_flag)
-    {
-        video->intraAvailA = video->mbAvailA;
-        video->intraAvailB = video->mbAvailB;
-        video->intraAvailC = video->mbAvailC;
-        video->intraAvailD = video->mbAvailD;
-    }
-    else
-    {
-        if (video->mbAvailA)
-        {
-            video->intraAvailA = video->mblock[video->mbAddrA].mb_intra;
-        }
-        if (video->mbAvailB)
-        {
-            video->intraAvailB = video->mblock[video->mbAddrB].mb_intra ;
-        }
-        if (video->mbAvailC)
-        {
-            video->intraAvailC = video->mblock[video->mbAddrC].mb_intra;
-        }
-        if (video->mbAvailD)
-        {
-            video->intraAvailD = video->mblock[video->mbAddrD].mb_intra;
-        }
-    }
-
-    currMB->mb_intra = TRUE;
-    currMB->mbMode = FIXED_INTRAPRED_MODE;
-
-    if (currMB->mbMode == AVC_I16)
-    {
-        currMB->i16Mode = FIXED_I16_MODE;
-
-        if (FIXED_I16_MODE == AVC_I16_Vertical && !video->intraAvailB)
-        {
-            currMB->i16Mode = AVC_I16_DC;
-        }
-
-        if (FIXED_I16_MODE == AVC_I16_Horizontal && !video->intraAvailA)
-        {
-            currMB->i16Mode = AVC_I16_DC;
-        }
-
-        if (FIXED_I16_MODE == AVC_I16_Plane && !(video->intraAvailA && video->intraAvailB && video->intraAvailD))
-        {
-            currMB->i16Mode = AVC_I16_DC;
-        }
-    }
-    else //if(currMB->mbMode == AVC_I4)
-    {
-        for (indx = 0; indx < 16; indx++)
-        {
-            block_x = blkIdx2blkX[indx];
-            block_y = blkIdx2blkY[indx];
-
-            currMB->i4Mode[(block_y<<2)+block_x] = FIXED_I4_MODE;
-
-            if (FIXED_I4_MODE == AVC_I4_Vertical && !(block_y > 0 || video->intraAvailB))
-            {
-                currMB->i4Mode[(block_y<<2)+block_x] = AVC_I4_DC;
-            }
-
-            if (FIXED_I4_MODE == AVC_I4_Horizontal && !(block_x || video->intraAvailA))
-            {
-                currMB->i4Mode[(block_y<<2)+block_x] = AVC_I4_DC;
-            }
-
-            if (FIXED_I4_MODE == AVC_I4_Diagonal_Down_Left &&
-                    (block_y == 0 && !video->intraAvailB))
-            {
-                currMB->i4Mode[(block_y<<2)+block_x] = AVC_I4_DC;
-            }
-
-            if (FIXED_I4_MODE == AVC_I4_Diagonal_Down_Right &&
-                    !((block_y && block_x)
-                      || (block_y && video->intraAvailA)
-                      || (block_x && video->intraAvailB)
-                      || (video->intraAvailA && video->intraAvailD && video->intraAvailB)))
-            {
-                currMB->i4Mode[(block_y<<2)+block_x] = AVC_I4_DC;
-            }
-
-            if (FIXED_I4_MODE == AVC_I4_Vertical_Right &&
-                    !((block_y && block_x)
-                      || (block_y && video->intraAvailA)
-                      || (block_x && video->intraAvailB)
-                      || (video->intraAvailA && video->intraAvailD && video->intraAvailB)))
-            {
-                currMB->i4Mode[(block_y<<2)+block_x] = AVC_I4_DC;
-            }
-
-            if (FIXED_I4_MODE == AVC_I4_Horizontal_Down &&
-                    !((block_y && block_x)
-                      || (block_y && video->intraAvailA)
-                      || (block_x && video->intraAvailB)
-                      || (video->intraAvailA && video->intraAvailD && video->intraAvailB)))
-            {
-                currMB->i4Mode[(block_y<<2)+block_x] = AVC_I4_DC;
-            }
-
-            if (FIXED_I4_MODE == AVC_I4_Vertical_Left &&
-                    (block_y == 0 && !video->intraAvailB))
-            {
-                currMB->i4Mode[(block_y<<2)+block_x] = AVC_I4_DC;
-            }
-
-            if (FIXED_I4_MODE == AVC_I4_Horizontal_Up && !(block_x || video->intraAvailA))
-            {
-                currMB->i4Mode[(block_y<<2)+block_x] = AVC_I4_DC;
-            }
-        }
-    }
-
-    currMB->intra_chroma_pred_mode = FIXED_INTRA_CHROMA_MODE;
-
-    if (FIXED_INTRA_CHROMA_MODE == AVC_IC_Horizontal && !(video->intraAvailA))
-    {
-        currMB->intra_chroma_pred_mode = AVC_IC_DC;
-    }
-
-    if (FIXED_INTRA_CHROMA_MODE == AVC_IC_Vertical && !(video->intraAvailB))
-    {
-        currMB->intra_chroma_pred_mode = AVC_IC_DC;
-    }
-
-    if (FIXED_INTRA_CHROMA_MODE == AVC_IC_Plane && !(video->intraAvailA && video->intraAvailB && video->intraAvailD))
-    {
-        currMB->intra_chroma_pred_mode = AVC_IC_DC;
-    }
-
-    /* also reset the motion vectors */
-    /* set MV and Ref_Idx codes of Intra blocks in P-slices */
-    memset(currMB->mvL0, 0, sizeof(int32)*16);
-    currMB->ref_idx_L0[0] = -1;
-    currMB->ref_idx_L0[1] = -1;
-    currMB->ref_idx_L0[2] = -1;
-    currMB->ref_idx_L0[3] = -1;
-
-    // output from this function, currMB->mbMode should be set to either
-    // AVC_I4, AVC_I16, or else in AVCMBMode enum, mbType, mb_intra, intra_chroma_pred_mode */
-    return ;
-}
-#else // faster combined prediction+SAD calculation
-void MBIntraSearch(AVCEncObject *encvid, AVCMacroblock *currMB, int mbNum)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCFrameIO *currInput = encvid->currInput;
-    uint8 *curL, *curCb, *curCr;
-    uint8 *comp, *pred_block;
-    int block_x, block_y, offset;
-    uint sad, sad4, sadI4, sadI16;
-    int component, SubBlock_indx, temp;
-    int pitch = video->currPic->pitch;
-
-    /* calculate the cost of each intra prediction mode  and compare to the
-    inter mode */
-    /* full search for all intra prediction */
-    offset = (video->mb_y << 4) * pitch + (video->mb_x << 4);
-    curL = currInput->YCbCr[0] + offset;
-    pred_block = video->pred_block + 84;
-
-    /* Assuming that InitNeighborAvailability has been called prior to this function */
-    video->intraAvailA = video->intraAvailB = video->intraAvailC = video->intraAvailD = 0;
-
-    if (!video->currPicParams->constrained_intra_pred_flag)
-    {
-        video->intraAvailA = video->mbAvailA;
-        video->intraAvailB = video->mbAvailB;
-        video->intraAvailC = video->mbAvailC;
-        video->intraAvailD = video->mbAvailD;
-    }
-    else
-    {
-        if (video->mbAvailA)
-        {
-            video->intraAvailA = video->mblock[video->mbAddrA].mb_intra;
-        }
-        if (video->mbAvailB)
-        {
-            video->intraAvailB = video->mblock[video->mbAddrB].mb_intra ;
-        }
-        if (video->mbAvailC)
-        {
-            video->intraAvailC = video->mblock[video->mbAddrC].mb_intra;
-        }
-        if (video->mbAvailD)
-        {
-            video->intraAvailD = video->mblock[video->mbAddrD].mb_intra;
-        }
-    }
-
-    /* currently we're doing exhaustive search. Smart search will be used later */
-
-    /* I16 modes */
-    curL = currInput->YCbCr[0] + offset;
-    video->pintra_pred_top = curL - pitch;
-    video->pintra_pred_left = curL - 1;
-    if (video->mb_y)
-    {
-        video->intra_pred_topleft = *(curL - pitch - 1);
-    }
-
-    /* Intra_16x16_Vertical */
-    sadI16 = 65536;
-    /* check availability of top */
-    if (video->intraAvailB)
-    {
-        sad = SAD_I16_Vert(video, curL, sadI16);
-
-        if (sad < sadI16)
-        {
-            sadI16 = sad;
-            currMB->i16Mode = AVC_I16_Vertical;
-        }
-    }
-    /* Intra_16x16_Horizontal */
-    /* check availability of left */
-    if (video->intraAvailA)
-    {
-        sad = SAD_I16_HorzDC(video, curL, AVC_I16_Horizontal, sadI16);
-
-        if (sad < sadI16)
-        {
-            sadI16 = sad;
-            currMB->i16Mode = AVC_I16_Horizontal;
-        }
-    }
-
-    /* Intra_16x16_DC, default mode */
-    sad = SAD_I16_HorzDC(video, curL, AVC_I16_DC, sadI16);
-    if (sad < sadI16)
-    {
-        sadI16 = sad;
-        currMB->i16Mode = AVC_I16_DC;
-    }
-
-    /* Intra_16x16_Plane */
-    if (video->intraAvailA && video->intraAvailB && video->intraAvailD)
-    {
-        sad = SAD_I16_Plane(video, curL, sadI16);
-
-        if (sad < sadI16)
-        {
-            sadI16 = sad;
-            currMB->i16Mode = AVC_I16_Plane;
-        }
-    }
-
-    sadI16 >>= 1;  /* before comparison */
-
-    /* selection between intra4, intra16 or inter mode */
-    if (sadI16 < encvid->min_cost)
-    {
-        currMB->mb_intra = TRUE;
-        currMB->mbMode = AVC_I16;
-        encvid->min_cost = sadI16;
-    }
-
-    if (currMB->mb_intra) /* only do the chrominance search when intra is decided */
-    {
-        /* Note that we might be able to guess the type of prediction from
-        the luma prediction type */
-
-        /* now search for the best chroma intra prediction */
-        offset = (offset >> 2) + (video->mb_x << 2);
-        curCb = currInput->YCbCr[1] + offset;
-        curCr = currInput->YCbCr[2] + offset;
-
-        pitch >>= 1;
-        video->pintra_pred_top_cb = curCb - pitch;
-        video->pintra_pred_left_cb = curCb - 1;
-        video->pintra_pred_top_cr = curCr - pitch;
-        video->pintra_pred_left_cr = curCr - 1;
-
-        if (video->mb_y)
-        {
-            video->intra_pred_topleft_cb = *(curCb - pitch - 1);
-            video->intra_pred_topleft_cr = *(curCr - pitch - 1);
-        }
-
-        /* Intra_Chroma_DC */
-        sad4 = SAD_Chroma_DC(video, curCb, curCr, 65536);
-        currMB->intra_chroma_pred_mode = AVC_IC_DC;
-
-        /* Intra_Chroma_Horizontal */
-        if (video->intraAvailA)
-        {
-            /* check availability of left */
-            sad = SAD_Chroma_Horz(video, curCb, curCr, sad4);
-            if (sad < sad4)
-            {
-                sad4 = sad;
-                currMB->intra_chroma_pred_mode = AVC_IC_Horizontal;
-            }
-        }
-
-        /* Intra_Chroma_Vertical */
-        if (video->intraAvailB)
-        {
-            /* check availability of top */
-            sad = SAD_Chroma_Vert(video, curCb, curCr, sad4);
-
-            if (sad < sad4)
-            {
-                sad4 = sad;
-                currMB->intra_chroma_pred_mode = AVC_IC_Vertical;
-            }
-        }
-
-        /* Intra_Chroma_Plane */
-        if (video->intraAvailA && video->intraAvailB && video->intraAvailD)
-        {
-            /* check availability of top and left */
-            Intra_Chroma_Plane(video, pitch);
-
-            sad = SADChroma(pred_block + 452, curCb, curCr, pitch);
-
-            if (sad < sad4)
-            {
-                sad4 = sad;
-                currMB->intra_chroma_pred_mode = AVC_IC_Plane;
-            }
-        }
-
-        /* also reset the motion vectors */
-        /* set MV and Ref_Idx codes of Intra blocks in P-slices */
-        memset(currMB->mvL0, 0, sizeof(int32)*16);
-        memset(currMB->ref_idx_L0, -1, sizeof(int16)*4);
-
-    }
-
-    // output from this function, currMB->mbMode should be set to either
-    // AVC_I4, AVC_I16, or else in AVCMBMode enum, mbType, mb_intra, intra_chroma_pred_mode */
-
-    return ;
-}
-#endif
-
-
diff --git a/media/libstagefright/codecs/avc/enc/src/motion_comp.cpp b/media/libstagefright/codecs/avc/enc/src/motion_comp.cpp
deleted file mode 100644
index a390f88..0000000
--- a/media/libstagefright/codecs/avc/enc/src/motion_comp.cpp
+++ /dev/null
@@ -1,2152 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-#include "avcenc_int.h"
-
-
-#define CLIP_RESULT(x)      if((uint)x > 0xFF){ \
-                 x = 0xFF & (~(x>>31));}
-
-/* (blkwidth << 2) + (dy << 1) + dx */
-static void (*const eChromaMC_SIMD[8])(uint8 *, int , int , int , uint8 *, int, int , int) =
-{
-    &eChromaFullMC_SIMD,
-    &eChromaHorizontalMC_SIMD,
-    &eChromaVerticalMC_SIMD,
-    &eChromaDiagonalMC_SIMD,
-    &eChromaFullMC_SIMD,
-    &eChromaHorizontalMC2_SIMD,
-    &eChromaVerticalMC2_SIMD,
-    &eChromaDiagonalMC2_SIMD
-};
-/* Perform motion prediction and compensation with residue if exist. */
-void AVCMBMotionComp(AVCEncObject *encvid, AVCCommonObj *video)
-{
-    (void)(encvid);
-
-    AVCMacroblock *currMB = video->currMB;
-    AVCPictureData *currPic = video->currPic;
-    int mbPartIdx, subMbPartIdx;
-    int ref_idx;
-    int offset_MbPart_indx = 0;
-    int16 *mv;
-    uint32 x_pos, y_pos;
-    uint8 *curL, *curCb, *curCr;
-    uint8 *ref_l, *ref_Cb, *ref_Cr;
-    uint8 *predBlock, *predCb, *predCr;
-    int block_x, block_y, offset_x, offset_y, offsetP, offset;
-    int x_position = (video->mb_x << 4);
-    int y_position = (video->mb_y << 4);
-    int MbHeight, MbWidth, mbPartIdx_X, mbPartIdx_Y, offset_indx;
-    int picWidth = currPic->width;
-    int picPitch = currPic->pitch;
-    int picHeight = currPic->height;
-    uint32 tmp_word;
-
-    tmp_word = y_position * picPitch;
-    curL = currPic->Sl + tmp_word + x_position;
-    offset = (tmp_word >> 2) + (x_position >> 1);
-    curCb = currPic->Scb + offset;
-    curCr = currPic->Scr + offset;
-
-    predBlock = curL;
-    predCb = curCb;
-    predCr = curCr;
-
-    GetMotionVectorPredictor(video, 1);
-
-    for (mbPartIdx = 0; mbPartIdx < currMB->NumMbPart; mbPartIdx++)
-    {
-        MbHeight = currMB->SubMbPartHeight[mbPartIdx];
-        MbWidth = currMB->SubMbPartWidth[mbPartIdx];
-        mbPartIdx_X = ((mbPartIdx + offset_MbPart_indx) & 1);
-        mbPartIdx_Y = (mbPartIdx + offset_MbPart_indx) >> 1;
-        ref_idx = currMB->ref_idx_L0[(mbPartIdx_Y << 1) + mbPartIdx_X];
-        offset_indx = 0;
-
-        ref_l = video->RefPicList0[ref_idx]->Sl;
-        ref_Cb = video->RefPicList0[ref_idx]->Scb;
-        ref_Cr = video->RefPicList0[ref_idx]->Scr;
-
-        for (subMbPartIdx = 0; subMbPartIdx < currMB->NumSubMbPart[mbPartIdx]; subMbPartIdx++)
-        {
-            block_x = (mbPartIdx_X << 1) + ((subMbPartIdx + offset_indx) & 1);
-            block_y = (mbPartIdx_Y << 1) + (((subMbPartIdx + offset_indx) >> 1) & 1);
-            mv = (int16*)(currMB->mvL0 + block_x + (block_y << 2));
-            offset_x = x_position + (block_x << 2);
-            offset_y = y_position + (block_y << 2);
-            x_pos = (offset_x << 2) + *mv++;   /*quarter pel */
-            y_pos = (offset_y << 2) + *mv;   /*quarter pel */
-
-            //offset = offset_y * currPic->width;
-            //offsetC = (offset >> 2) + (offset_x >> 1);
-            offsetP = (block_y << 2) * picPitch + (block_x << 2);
-            eLumaMotionComp(ref_l, picPitch, picHeight, x_pos, y_pos,
-                            /*comp_Sl + offset + offset_x,*/
-                            predBlock + offsetP, picPitch, MbWidth, MbHeight);
-
-            offsetP = (block_y * picWidth) + (block_x << 1);
-            eChromaMotionComp(ref_Cb, picWidth >> 1, picHeight >> 1, x_pos, y_pos,
-                              /*comp_Scb +  offsetC,*/
-                              predCb + offsetP, picPitch >> 1, MbWidth >> 1, MbHeight >> 1);
-            eChromaMotionComp(ref_Cr, picWidth >> 1, picHeight >> 1, x_pos, y_pos,
-                              /*comp_Scr +  offsetC,*/
-                              predCr + offsetP, picPitch >> 1, MbWidth >> 1, MbHeight >> 1);
-
-            offset_indx = currMB->SubMbPartWidth[mbPartIdx] >> 3;
-        }
-        offset_MbPart_indx = currMB->MbPartWidth >> 4;
-    }
-
-    return ;
-}
-
-
-/* preform the actual  motion comp here */
-void eLumaMotionComp(uint8 *ref, int picpitch, int picheight,
-                     int x_pos, int y_pos,
-                     uint8 *pred, int pred_pitch,
-                     int blkwidth, int blkheight)
-{
-    (void)(picheight);
-
-    int dx, dy;
-    int temp2[21][21]; /* for intermediate results */
-    uint8 *ref2;
-
-    dx = x_pos & 3;
-    dy = y_pos & 3;
-    x_pos = x_pos >> 2;  /* round it to full-pel resolution */
-    y_pos = y_pos >> 2;
-
-    /* perform actual motion compensation */
-    if (dx == 0 && dy == 0)
-    {  /* fullpel position *//* G */
-
-        ref += y_pos * picpitch + x_pos;
-
-        eFullPelMC(ref, picpitch, pred, pred_pitch, blkwidth, blkheight);
-
-    }   /* other positions */
-    else  if (dy == 0)
-    { /* no vertical interpolation *//* a,b,c*/
-
-        ref += y_pos * picpitch + x_pos;
-
-        eHorzInterp1MC(ref, picpitch, pred, pred_pitch, blkwidth, blkheight, dx);
-    }
-    else if (dx == 0)
-    { /*no horizontal interpolation *//* d,h,n */
-
-        ref += y_pos * picpitch + x_pos;
-
-        eVertInterp1MC(ref, picpitch, pred, pred_pitch, blkwidth, blkheight, dy);
-    }
-    else if (dy == 2)
-    {  /* horizontal cross *//* i, j, k */
-
-        ref += y_pos * picpitch + x_pos - 2; /* move to the left 2 pixels */
-
-        eVertInterp2MC(ref, picpitch, &temp2[0][0], 21, blkwidth + 5, blkheight);
-
-        eHorzInterp2MC(&temp2[0][2], 21, pred, pred_pitch, blkwidth, blkheight, dx);
-    }
-    else if (dx == 2)
-    { /* vertical cross */ /* f,q */
-
-        ref += (y_pos - 2) * picpitch + x_pos; /* move to up 2 lines */
-
-        eHorzInterp3MC(ref, picpitch, &temp2[0][0], 21, blkwidth, blkheight + 5);
-        eVertInterp3MC(&temp2[2][0], 21, pred, pred_pitch, blkwidth, blkheight, dy);
-    }
-    else
-    { /* diagonal *//* e,g,p,r */
-
-        ref2 = ref + (y_pos + (dy / 2)) * picpitch + x_pos;
-
-        ref += (y_pos * picpitch) + x_pos + (dx / 2);
-
-        eDiagonalInterpMC(ref2, ref, picpitch, pred, pred_pitch, blkwidth, blkheight);
-    }
-
-    return ;
-}
-
-void eCreateAlign(uint8 *ref, int picpitch, int y_pos,
-                  uint8 *out, int blkwidth, int blkheight)
-{
-    int i, j;
-    int offset, out_offset;
-    uint32 prev_pix, result, pix1, pix2, pix4;
-
-    ref += y_pos * picpitch;// + x_pos;
-    out_offset = 24 - blkwidth;
-
-    //switch(x_pos&0x3){
-    switch (((intptr_t)ref)&0x3)
-    {
-        case 1:
-            offset =  picpitch - blkwidth - 3;
-            for (j = 0; j < blkheight; j++)
-            {
-                pix1 = *ref++;
-                pix2 = *((uint16*)ref);
-                ref += 2;
-                result = (pix2 << 8) | pix1;
-
-                for (i = 3; i < blkwidth; i += 4)
-                {
-                    pix4 = *((uint32*)ref);
-                    ref += 4;
-                    prev_pix = (pix4 << 24) & 0xFF000000; /* mask out byte belong to previous word */
-                    result |= prev_pix;
-                    *((uint32*)out) = result;  /* write 4 bytes */
-                    out += 4;
-                    result = pix4 >> 8; /* for the next loop */
-                }
-                ref += offset;
-                out += out_offset;
-            }
-            break;
-        case 2:
-            offset =  picpitch - blkwidth - 2;
-            for (j = 0; j < blkheight; j++)
-            {
-                result = *((uint16*)ref);
-                ref += 2;
-                for (i = 2; i < blkwidth; i += 4)
-                {
-                    pix4 = *((uint32*)ref);
-                    ref += 4;
-                    prev_pix = (pix4 << 16) & 0xFFFF0000; /* mask out byte belong to previous word */
-                    result |= prev_pix;
-                    *((uint32*)out) = result;  /* write 4 bytes */
-                    out += 4;
-                    result = pix4 >> 16; /* for the next loop */
-                }
-                ref += offset;
-                out += out_offset;
-            }
-            break;
-        case 3:
-            offset =  picpitch - blkwidth - 1;
-            for (j = 0; j < blkheight; j++)
-            {
-                result = *ref++;
-                for (i = 1; i < blkwidth; i += 4)
-                {
-                    pix4 = *((uint32*)ref);
-                    ref += 4;
-                    prev_pix = (pix4 << 8) & 0xFFFFFF00; /* mask out byte belong to previous word */
-                    result |= prev_pix;
-                    *((uint32*)out) = result;  /* write 4 bytes */
-                    out += 4;
-                    result = pix4 >> 24; /* for the next loop */
-                }
-                ref += offset;
-                out += out_offset;
-            }
-            break;
-    }
-}
-
-void eHorzInterp1MC(uint8 *in, int inpitch, uint8 *out, int outpitch,
-                    int blkwidth, int blkheight, int dx)
-{
-    uint8 *p_ref, *tmp;
-    uint32 *p_cur;
-    uint32 pkres;
-    int result, curr_offset, ref_offset;
-    int j;
-    int32 r0, r1, r2, r3, r4, r5;
-    int32 r13, r6;
-
-    p_cur = (uint32*)out; /* assume it's word aligned */
-    curr_offset = (outpitch - blkwidth) >> 2;
-    p_ref = in;
-    ref_offset = inpitch - blkwidth;
-
-    if (dx&1)
-    {
-        dx = ((dx >> 1) ? -3 : -4); /* use in 3/4 pel */
-        p_ref -= 2;
-        r13 = 0;
-        for (j = blkheight; j > 0; j--)
-        {
-            tmp = p_ref + blkwidth;
-            r0 = p_ref[0];
-            r1 = p_ref[2];
-            r0 |= (r1 << 16);           /* 0,c,0,a */
-            r1 = p_ref[1];
-            r2 = p_ref[3];
-            r1 |= (r2 << 16);           /* 0,d,0,b */
-            while (p_ref < tmp)
-            {
-                r2 = *(p_ref += 4); /* move pointer to e */
-                r3 = p_ref[2];
-                r2 |= (r3 << 16);           /* 0,g,0,e */
-                r3 = p_ref[1];
-                r4 = p_ref[3];
-                r3 |= (r4 << 16);           /* 0,h,0,f */
-
-                r4 = r0 + r3;       /* c+h, a+f */
-                r5 = r0 + r1;   /* c+d, a+b */
-                r6 = r2 + r3;   /* g+h, e+f */
-                r5 >>= 16;
-                r5 |= (r6 << 16);   /* e+f, c+d */
-                r4 += r5 * 20;      /* c+20*e+20*f+h, a+20*c+20*d+f */
-                r4 += 0x100010; /* +16, +16 */
-                r5 = r1 + r2;       /* d+g, b+e */
-                r4 -= r5 * 5;       /* c-5*d+20*e+20*f-5*g+h, a-5*b+20*c+20*d-5*e+f */
-                r4 >>= 5;
-                r13 |= r4;      /* check clipping */
-
-                r5 = p_ref[dx+2];
-                r6 = p_ref[dx+4];
-                r5 |= (r6 << 16);
-                r4 += r5;
-                r4 += 0x10001;
-                r4 = (r4 >> 1) & 0xFF00FF;
-
-                r5 = p_ref[4];  /* i */
-                r6 = (r5 << 16);
-                r5 = r6 | (r2 >> 16);/* 0,i,0,g */
-                r5 += r1;       /* d+i, b+g */ /* r5 not free */
-                r1 >>= 16;
-                r1 |= (r3 << 16); /* 0,f,0,d */ /* r1 has changed */
-                r1 += r2;       /* f+g, d+e */
-                r5 += 20 * r1;  /* d+20f+20g+i, b+20d+20e+g */
-                r0 >>= 16;
-                r0 |= (r2 << 16); /* 0,e,0,c */ /* r0 has changed */
-                r0 += r3;       /* e+h, c+f */
-                r5 += 0x100010; /* 16,16 */
-                r5 -= r0 * 5;       /* d-5e+20f+20g-5h+i, b-5c+20d+20e-5f+g */
-                r5 >>= 5;
-                r13 |= r5;      /* check clipping */
-
-                r0 = p_ref[dx+3];
-                r1 = p_ref[dx+5];
-                r0 |= (r1 << 16);
-                r5 += r0;
-                r5 += 0x10001;
-                r5 = (r5 >> 1) & 0xFF00FF;
-
-                r4 |= (r5 << 8);    /* pack them together */
-                *p_cur++ = r4;
-                r1 = r3;
-                r0 = r2;
-            }
-            p_cur += curr_offset; /* move to the next line */
-            p_ref += ref_offset;  /*    ref_offset = inpitch-blkwidth; */
-
-            if (r13&0xFF000700) /* need clipping */
-            {
-                /* move back to the beginning of the line */
-                p_ref -= (ref_offset + blkwidth);   /* input */
-                p_cur -= (outpitch >> 2);
-
-                tmp = p_ref + blkwidth;
-                for (; p_ref < tmp;)
-                {
-
-                    r0 = *p_ref++;
-                    r1 = *p_ref++;
-                    r2 = *p_ref++;
-                    r3 = *p_ref++;
-                    r4 = *p_ref++;
-                    /* first pixel */
-                    r5 = *p_ref++;
-                    result = (r0 + r5);
-                    r0 = (r1 + r4);
-                    result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-                    r0 = (r2 + r3);
-                    result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    /* 3/4 pel,  no need to clip */
-                    result = (result + p_ref[dx] + 1);
-                    pkres = (result >> 1) ;
-                    /* second pixel */
-                    r0 = *p_ref++;
-                    result = (r1 + r0);
-                    r1 = (r2 + r5);
-                    result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-                    r1 = (r3 + r4);
-                    result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    /* 3/4 pel,  no need to clip */
-                    result = (result + p_ref[dx] + 1);
-                    result = (result >> 1);
-                    pkres  |= (result << 8);
-                    /* third pixel */
-                    r1 = *p_ref++;
-                    result = (r2 + r1);
-                    r2 = (r3 + r0);
-                    result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-                    r2 = (r4 + r5);
-                    result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    /* 3/4 pel,  no need to clip */
-                    result = (result + p_ref[dx] + 1);
-                    result = (result >> 1);
-                    pkres  |= (result << 16);
-                    /* fourth pixel */
-                    r2 = *p_ref++;
-                    result = (r3 + r2);
-                    r3 = (r4 + r1);
-                    result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-                    r3 = (r5 + r0);
-                    result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    /* 3/4 pel,  no need to clip */
-                    result = (result + p_ref[dx] + 1);
-                    result = (result >> 1);
-                    pkres  |= (result << 24);
-                    *p_cur++ = pkres; /* write 4 pixels */
-                    p_ref -= 5;  /* offset back to the middle of filter */
-                }
-                p_cur += curr_offset;  /* move to the next line */
-                p_ref += ref_offset;    /* move to the next line */
-            }
-        }
-    }
-    else
-    {
-        p_ref -= 2;
-        r13 = 0;
-        for (j = blkheight; j > 0; j--)
-        {
-            tmp = p_ref + blkwidth;
-            r0 = p_ref[0];
-            r1 = p_ref[2];
-            r0 |= (r1 << 16);           /* 0,c,0,a */
-            r1 = p_ref[1];
-            r2 = p_ref[3];
-            r1 |= (r2 << 16);           /* 0,d,0,b */
-            while (p_ref < tmp)
-            {
-                r2 = *(p_ref += 4); /* move pointer to e */
-                r3 = p_ref[2];
-                r2 |= (r3 << 16);           /* 0,g,0,e */
-                r3 = p_ref[1];
-                r4 = p_ref[3];
-                r3 |= (r4 << 16);           /* 0,h,0,f */
-
-                r4 = r0 + r3;       /* c+h, a+f */
-                r5 = r0 + r1;   /* c+d, a+b */
-                r6 = r2 + r3;   /* g+h, e+f */
-                r5 >>= 16;
-                r5 |= (r6 << 16);   /* e+f, c+d */
-                r4 += r5 * 20;      /* c+20*e+20*f+h, a+20*c+20*d+f */
-                r4 += 0x100010; /* +16, +16 */
-                r5 = r1 + r2;       /* d+g, b+e */
-                r4 -= r5 * 5;       /* c-5*d+20*e+20*f-5*g+h, a-5*b+20*c+20*d-5*e+f */
-                r4 >>= 5;
-                r13 |= r4;      /* check clipping */
-                r4 &= 0xFF00FF; /* mask */
-
-                r5 = p_ref[4];  /* i */
-                r6 = (r5 << 16);
-                r5 = r6 | (r2 >> 16);/* 0,i,0,g */
-                r5 += r1;       /* d+i, b+g */ /* r5 not free */
-                r1 >>= 16;
-                r1 |= (r3 << 16); /* 0,f,0,d */ /* r1 has changed */
-                r1 += r2;       /* f+g, d+e */
-                r5 += 20 * r1;  /* d+20f+20g+i, b+20d+20e+g */
-                r0 >>= 16;
-                r0 |= (r2 << 16); /* 0,e,0,c */ /* r0 has changed */
-                r0 += r3;       /* e+h, c+f */
-                r5 += 0x100010; /* 16,16 */
-                r5 -= r0 * 5;       /* d-5e+20f+20g-5h+i, b-5c+20d+20e-5f+g */
-                r5 >>= 5;
-                r13 |= r5;      /* check clipping */
-                r5 &= 0xFF00FF; /* mask */
-
-                r4 |= (r5 << 8);    /* pack them together */
-                *p_cur++ = r4;
-                r1 = r3;
-                r0 = r2;
-            }
-            p_cur += curr_offset; /* move to the next line */
-            p_ref += ref_offset;  /*    ref_offset = inpitch-blkwidth; */
-
-            if (r13&0xFF000700) /* need clipping */
-            {
-                /* move back to the beginning of the line */
-                p_ref -= (ref_offset + blkwidth);   /* input */
-                p_cur -= (outpitch >> 2);
-
-                tmp = p_ref + blkwidth;
-                for (; p_ref < tmp;)
-                {
-
-                    r0 = *p_ref++;
-                    r1 = *p_ref++;
-                    r2 = *p_ref++;
-                    r3 = *p_ref++;
-                    r4 = *p_ref++;
-                    /* first pixel */
-                    r5 = *p_ref++;
-                    result = (r0 + r5);
-                    r0 = (r1 + r4);
-                    result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-                    r0 = (r2 + r3);
-                    result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    pkres  = result;
-                    /* second pixel */
-                    r0 = *p_ref++;
-                    result = (r1 + r0);
-                    r1 = (r2 + r5);
-                    result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-                    r1 = (r3 + r4);
-                    result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    pkres  |= (result << 8);
-                    /* third pixel */
-                    r1 = *p_ref++;
-                    result = (r2 + r1);
-                    r2 = (r3 + r0);
-                    result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-                    r2 = (r4 + r5);
-                    result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    pkres  |= (result << 16);
-                    /* fourth pixel */
-                    r2 = *p_ref++;
-                    result = (r3 + r2);
-                    r3 = (r4 + r1);
-                    result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-                    r3 = (r5 + r0);
-                    result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    pkres  |= (result << 24);
-                    *p_cur++ = pkres;   /* write 4 pixels */
-                    p_ref -= 5;
-                }
-                p_cur += curr_offset; /* move to the next line */
-                p_ref += ref_offset;
-            }
-        }
-    }
-
-    return ;
-}
-
-void eHorzInterp2MC(int *in, int inpitch, uint8 *out, int outpitch,
-                    int blkwidth, int blkheight, int dx)
-{
-    int *p_ref, *tmp;
-    uint32 *p_cur;
-    uint32 pkres;
-    int result, result2, curr_offset, ref_offset;
-    int j, r0, r1, r2, r3, r4, r5;
-
-    p_cur = (uint32*)out; /* assume it's word aligned */
-    curr_offset = (outpitch - blkwidth) >> 2;
-    p_ref = in;
-    ref_offset = inpitch - blkwidth;
-
-    if (dx&1)
-    {
-        dx = ((dx >> 1) ? -3 : -4); /* use in 3/4 pel */
-
-        for (j = blkheight; j > 0 ; j--)
-        {
-            tmp = p_ref + blkwidth;
-            for (; p_ref < tmp;)
-            {
-
-                r0 = p_ref[-2];
-                r1 = p_ref[-1];
-                r2 = *p_ref++;
-                r3 = *p_ref++;
-                r4 = *p_ref++;
-                /* first pixel */
-                r5 = *p_ref++;
-                result = (r0 + r5);
-                r0 = (r1 + r4);
-                result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-                r0 = (r2 + r3);
-                result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                result2 = ((p_ref[dx] + 16) >> 5);
-                CLIP_RESULT(result2)
-                /* 3/4 pel,  no need to clip */
-                result = (result + result2 + 1);
-                pkres = (result >> 1);
-                /* second pixel */
-                r0 = *p_ref++;
-                result = (r1 + r0);
-                r1 = (r2 + r5);
-                result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-                r1 = (r3 + r4);
-                result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                result2 = ((p_ref[dx] + 16) >> 5);
-                CLIP_RESULT(result2)
-                /* 3/4 pel,  no need to clip */
-                result = (result + result2 + 1);
-                result = (result >> 1);
-                pkres  |= (result << 8);
-                /* third pixel */
-                r1 = *p_ref++;
-                result = (r2 + r1);
-                r2 = (r3 + r0);
-                result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-                r2 = (r4 + r5);
-                result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                result2 = ((p_ref[dx] + 16) >> 5);
-                CLIP_RESULT(result2)
-                /* 3/4 pel,  no need to clip */
-                result = (result + result2 + 1);
-                result = (result >> 1);
-                pkres  |= (result << 16);
-                /* fourth pixel */
-                r2 = *p_ref++;
-                result = (r3 + r2);
-                r3 = (r4 + r1);
-                result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-                r3 = (r5 + r0);
-                result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                result2 = ((p_ref[dx] + 16) >> 5);
-                CLIP_RESULT(result2)
-                /* 3/4 pel,  no need to clip */
-                result = (result + result2 + 1);
-                result = (result >> 1);
-                pkres  |= (result << 24);
-                *p_cur++ = pkres; /* write 4 pixels */
-                p_ref -= 3;  /* offset back to the middle of filter */
-            }
-            p_cur += curr_offset;  /* move to the next line */
-            p_ref += ref_offset;    /* move to the next line */
-        }
-    }
-    else
-    {
-        for (j = blkheight; j > 0 ; j--)
-        {
-            tmp = p_ref + blkwidth;
-            for (; p_ref < tmp;)
-            {
-
-                r0 = p_ref[-2];
-                r1 = p_ref[-1];
-                r2 = *p_ref++;
-                r3 = *p_ref++;
-                r4 = *p_ref++;
-                /* first pixel */
-                r5 = *p_ref++;
-                result = (r0 + r5);
-                r0 = (r1 + r4);
-                result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-                r0 = (r2 + r3);
-                result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                pkres  = result;
-                /* second pixel */
-                r0 = *p_ref++;
-                result = (r1 + r0);
-                r1 = (r2 + r5);
-                result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-                r1 = (r3 + r4);
-                result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                pkres  |= (result << 8);
-                /* third pixel */
-                r1 = *p_ref++;
-                result = (r2 + r1);
-                r2 = (r3 + r0);
-                result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-                r2 = (r4 + r5);
-                result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                pkres  |= (result << 16);
-                /* fourth pixel */
-                r2 = *p_ref++;
-                result = (r3 + r2);
-                r3 = (r4 + r1);
-                result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-                r3 = (r5 + r0);
-                result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                pkres  |= (result << 24);
-                *p_cur++ = pkres; /* write 4 pixels */
-                p_ref -= 3;  /* offset back to the middle of filter */
-            }
-            p_cur += curr_offset;  /* move to the next line */
-            p_ref += ref_offset;    /* move to the next line */
-        }
-    }
-
-    return ;
-}
-
-void eHorzInterp3MC(uint8 *in, int inpitch, int *out, int outpitch,
-                    int blkwidth, int blkheight)
-{
-    uint8 *p_ref, *tmp;
-    int   *p_cur;
-    int result, curr_offset, ref_offset;
-    int j, r0, r1, r2, r3, r4, r5;
-
-    p_cur = out;
-    curr_offset = (outpitch - blkwidth);
-    p_ref = in;
-    ref_offset = inpitch - blkwidth;
-
-    for (j = blkheight; j > 0 ; j--)
-    {
-        tmp = p_ref + blkwidth;
-        for (; p_ref < tmp;)
-        {
-
-            r0 = p_ref[-2];
-            r1 = p_ref[-1];
-            r2 = *p_ref++;
-            r3 = *p_ref++;
-            r4 = *p_ref++;
-            /* first pixel */
-            r5 = *p_ref++;
-            result = (r0 + r5);
-            r0 = (r1 + r4);
-            result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-            r0 = (r2 + r3);
-            result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-            *p_cur++ = result;
-            /* second pixel */
-            r0 = *p_ref++;
-            result = (r1 + r0);
-            r1 = (r2 + r5);
-            result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-            r1 = (r3 + r4);
-            result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-            *p_cur++ = result;
-            /* third pixel */
-            r1 = *p_ref++;
-            result = (r2 + r1);
-            r2 = (r3 + r0);
-            result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-            r2 = (r4 + r5);
-            result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-            *p_cur++ = result;
-            /* fourth pixel */
-            r2 = *p_ref++;
-            result = (r3 + r2);
-            r3 = (r4 + r1);
-            result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-            r3 = (r5 + r0);
-            result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-            *p_cur++ = result;
-            p_ref -= 3; /* move back to the middle of the filter */
-        }
-        p_cur += curr_offset; /* move to the next line */
-        p_ref += ref_offset;
-    }
-
-    return ;
-}
-void eVertInterp1MC(uint8 *in, int inpitch, uint8 *out, int outpitch,
-                    int blkwidth, int blkheight, int dy)
-{
-    uint8 *p_cur, *p_ref, *tmp;
-    int result, curr_offset, ref_offset;
-    int j, i;
-    int32 r0, r1, r2, r3, r4, r5, r6, r7, r8, r13;
-    uint8  tmp_in[24][24];
-
-    /* not word-aligned */
-    if (((intptr_t)in)&0x3)
-    {
-        eCreateAlign(in, inpitch, -2, &tmp_in[0][0], blkwidth, blkheight + 5);
-        in = &tmp_in[2][0];
-        inpitch = 24;
-    }
-    p_cur = out;
-    curr_offset = 1 - outpitch * (blkheight - 1); /* offset vertically back up and one pixel to right */
-    ref_offset = blkheight * inpitch; /* for limit */
-
-    curr_offset += 3;
-
-    if (dy&1)
-    {
-        dy = (dy >> 1) ? 0 : -inpitch;
-
-        for (j = 0; j < blkwidth; j += 4, in += 4)
-        {
-            r13 = 0;
-            p_ref = in;
-            p_cur -= outpitch;  /* compensate for the first offset */
-            tmp = p_ref + ref_offset; /* limit */
-            while (p_ref < tmp)  /* the loop un-rolled  */
-            {
-                r0 = *((uint32*)(p_ref - (inpitch << 1))); /* load 4 bytes */
-                p_ref += inpitch;
-                r6 = (r0 >> 8) & 0xFF00FF; /* second and fourth byte */
-                r0 &= 0xFF00FF;
-
-                r1 = *((uint32*)(p_ref + (inpitch << 1)));  /* r1, r7, ref[3] */
-                r7 = (r1 >> 8) & 0xFF00FF;
-                r1 &= 0xFF00FF;
-
-                r0 += r1;
-                r6 += r7;
-
-                r2 = *((uint32*)p_ref); /* r2, r8, ref[1] */
-                r8 = (r2 >> 8) & 0xFF00FF;
-                r2 &= 0xFF00FF;
-
-                r1 = *((uint32*)(p_ref - inpitch)); /* r1, r7, ref[0] */
-                r7 = (r1 >> 8) & 0xFF00FF;
-                r1 &= 0xFF00FF;
-                r1 += r2;
-
-                r7 += r8;
-
-                r0 += 20 * r1;
-                r6 += 20 * r7;
-                r0 += 0x100010;
-                r6 += 0x100010;
-
-                r2 = *((uint32*)(p_ref - (inpitch << 1))); /* r2, r8, ref[-1] */
-                r8 = (r2 >> 8) & 0xFF00FF;
-                r2 &= 0xFF00FF;
-
-                r1 = *((uint32*)(p_ref + inpitch)); /* r1, r7, ref[2] */
-                r7 = (r1 >> 8) & 0xFF00FF;
-                r1 &= 0xFF00FF;
-                r1 += r2;
-
-                r7 += r8;
-
-                r0 -= 5 * r1;
-                r6 -= 5 * r7;
-
-                r0 >>= 5;
-                r6 >>= 5;
-                /* clip */
-                r13 |= r6;
-                r13 |= r0;
-                //CLIPPACK(r6,result)
-
-                r1 = *((uint32*)(p_ref + dy));
-                r2 = (r1 >> 8) & 0xFF00FF;
-                r1 &= 0xFF00FF;
-                r0 += r1;
-                r6 += r2;
-                r0 += 0x10001;
-                r6 += 0x10001;
-                r0 = (r0 >> 1) & 0xFF00FF;
-                r6 = (r6 >> 1) & 0xFF00FF;
-
-                r0 |= (r6 << 8);  /* pack it back */
-                *((uint32*)(p_cur += outpitch)) = r0;
-            }
-            p_cur += curr_offset; /* offset to the next pixel */
-            if (r13 & 0xFF000700) /* this column need clipping */
-            {
-                p_cur -= 4;
-                for (i = 0; i < 4; i++)
-                {
-                    p_ref = in + i;
-                    p_cur -= outpitch;  /* compensate for the first offset */
-
-                    tmp = p_ref + ref_offset; /* limit */
-                    while (p_ref < tmp)
-                    {                           /* loop un-rolled */
-                        r0 = *(p_ref - (inpitch << 1));
-                        r1 = *(p_ref - inpitch);
-                        r2 = *p_ref;
-                        r3 = *(p_ref += inpitch);  /* modify pointer before loading */
-                        r4 = *(p_ref += inpitch);
-                        /* first pixel */
-                        r5 = *(p_ref += inpitch);
-                        result = (r0 + r5);
-                        r0 = (r1 + r4);
-                        result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-                        r0 = (r2 + r3);
-                        result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-                        result = (result + 16) >> 5;
-                        CLIP_RESULT(result)
-                        /* 3/4 pel,  no need to clip */
-                        result = (result + p_ref[dy-(inpitch<<1)] + 1);
-                        result = (result >> 1);
-                        *(p_cur += outpitch) = result;
-                        /* second pixel */
-                        r0 = *(p_ref += inpitch);
-                        result = (r1 + r0);
-                        r1 = (r2 + r5);
-                        result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-                        r1 = (r3 + r4);
-                        result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-                        result = (result + 16) >> 5;
-                        CLIP_RESULT(result)
-                        /* 3/4 pel,  no need to clip */
-                        result = (result + p_ref[dy-(inpitch<<1)] + 1);
-                        result = (result >> 1);
-                        *(p_cur += outpitch) = result;
-                        /* third pixel */
-                        r1 = *(p_ref += inpitch);
-                        result = (r2 + r1);
-                        r2 = (r3 + r0);
-                        result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-                        r2 = (r4 + r5);
-                        result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-                        result = (result + 16) >> 5;
-                        CLIP_RESULT(result)
-                        /* 3/4 pel,  no need to clip */
-                        result = (result + p_ref[dy-(inpitch<<1)] + 1);
-                        result = (result >> 1);
-                        *(p_cur += outpitch) = result;
-                        /* fourth pixel */
-                        r2 = *(p_ref += inpitch);
-                        result = (r3 + r2);
-                        r3 = (r4 + r1);
-                        result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-                        r3 = (r5 + r0);
-                        result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-                        result = (result + 16) >> 5;
-                        CLIP_RESULT(result)
-                        /* 3/4 pel,  no need to clip */
-                        result = (result + p_ref[dy-(inpitch<<1)] + 1);
-                        result = (result >> 1);
-                        *(p_cur += outpitch) = result;
-                        p_ref -= (inpitch << 1);  /* move back to center of the filter of the next one */
-                    }
-                    p_cur += (curr_offset - 3);
-                }
-            }
-        }
-    }
-    else
-    {
-        for (j = 0; j < blkwidth; j += 4, in += 4)
-        {
-            r13 = 0;
-            p_ref = in;
-            p_cur -= outpitch;  /* compensate for the first offset */
-            tmp = p_ref + ref_offset; /* limit */
-            while (p_ref < tmp)  /* the loop un-rolled  */
-            {
-                r0 = *((uint32*)(p_ref - (inpitch << 1))); /* load 4 bytes */
-                p_ref += inpitch;
-                r6 = (r0 >> 8) & 0xFF00FF; /* second and fourth byte */
-                r0 &= 0xFF00FF;
-
-                r1 = *((uint32*)(p_ref + (inpitch << 1)));  /* r1, r7, ref[3] */
-                r7 = (r1 >> 8) & 0xFF00FF;
-                r1 &= 0xFF00FF;
-
-                r0 += r1;
-                r6 += r7;
-
-                r2 = *((uint32*)p_ref); /* r2, r8, ref[1] */
-                r8 = (r2 >> 8) & 0xFF00FF;
-                r2 &= 0xFF00FF;
-
-                r1 = *((uint32*)(p_ref - inpitch)); /* r1, r7, ref[0] */
-                r7 = (r1 >> 8) & 0xFF00FF;
-                r1 &= 0xFF00FF;
-                r1 += r2;
-
-                r7 += r8;
-
-                r0 += 20 * r1;
-                r6 += 20 * r7;
-                r0 += 0x100010;
-                r6 += 0x100010;
-
-                r2 = *((uint32*)(p_ref - (inpitch << 1))); /* r2, r8, ref[-1] */
-                r8 = (r2 >> 8) & 0xFF00FF;
-                r2 &= 0xFF00FF;
-
-                r1 = *((uint32*)(p_ref + inpitch)); /* r1, r7, ref[2] */
-                r7 = (r1 >> 8) & 0xFF00FF;
-                r1 &= 0xFF00FF;
-                r1 += r2;
-
-                r7 += r8;
-
-                r0 -= 5 * r1;
-                r6 -= 5 * r7;
-
-                r0 >>= 5;
-                r6 >>= 5;
-                /* clip */
-                r13 |= r6;
-                r13 |= r0;
-                //CLIPPACK(r6,result)
-                r0 &= 0xFF00FF;
-                r6 &= 0xFF00FF;
-                r0 |= (r6 << 8);  /* pack it back */
-                *((uint32*)(p_cur += outpitch)) = r0;
-            }
-            p_cur += curr_offset; /* offset to the next pixel */
-            if (r13 & 0xFF000700) /* this column need clipping */
-            {
-                p_cur -= 4;
-                for (i = 0; i < 4; i++)
-                {
-                    p_ref = in + i;
-                    p_cur -= outpitch;  /* compensate for the first offset */
-                    tmp = p_ref + ref_offset; /* limit */
-                    while (p_ref < tmp)
-                    {                           /* loop un-rolled */
-                        r0 = *(p_ref - (inpitch << 1));
-                        r1 = *(p_ref - inpitch);
-                        r2 = *p_ref;
-                        r3 = *(p_ref += inpitch);  /* modify pointer before loading */
-                        r4 = *(p_ref += inpitch);
-                        /* first pixel */
-                        r5 = *(p_ref += inpitch);
-                        result = (r0 + r5);
-                        r0 = (r1 + r4);
-                        result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-                        r0 = (r2 + r3);
-                        result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-                        result = (result + 16) >> 5;
-                        CLIP_RESULT(result)
-                        *(p_cur += outpitch) = result;
-                        /* second pixel */
-                        r0 = *(p_ref += inpitch);
-                        result = (r1 + r0);
-                        r1 = (r2 + r5);
-                        result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-                        r1 = (r3 + r4);
-                        result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-                        result = (result + 16) >> 5;
-                        CLIP_RESULT(result)
-                        *(p_cur += outpitch) = result;
-                        /* third pixel */
-                        r1 = *(p_ref += inpitch);
-                        result = (r2 + r1);
-                        r2 = (r3 + r0);
-                        result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-                        r2 = (r4 + r5);
-                        result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-                        result = (result + 16) >> 5;
-                        CLIP_RESULT(result)
-                        *(p_cur += outpitch) = result;
-                        /* fourth pixel */
-                        r2 = *(p_ref += inpitch);
-                        result = (r3 + r2);
-                        r3 = (r4 + r1);
-                        result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-                        r3 = (r5 + r0);
-                        result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-                        result = (result + 16) >> 5;
-                        CLIP_RESULT(result)
-                        *(p_cur += outpitch) = result;
-                        p_ref -= (inpitch << 1);  /* move back to center of the filter of the next one */
-                    }
-                    p_cur += (curr_offset - 3);
-                }
-            }
-        }
-    }
-
-    return ;
-}
-
-void eVertInterp2MC(uint8 *in, int inpitch, int *out, int outpitch,
-                    int blkwidth, int blkheight)
-{
-    int *p_cur;
-    uint8 *p_ref, *tmp;
-    int result, curr_offset, ref_offset;
-    int j, r0, r1, r2, r3, r4, r5;
-
-    p_cur = out;
-    curr_offset = 1 - outpitch * (blkheight - 1); /* offset vertically back up and one pixel to right */
-    ref_offset = blkheight * inpitch; /* for limit */
-
-    for (j = 0; j < blkwidth; j++)
-    {
-        p_cur -= outpitch; /* compensate for the first offset */
-        p_ref = in++;
-
-        tmp = p_ref + ref_offset; /* limit */
-        while (p_ref < tmp)
-        {                           /* loop un-rolled */
-            r0 = *(p_ref - (inpitch << 1));
-            r1 = *(p_ref - inpitch);
-            r2 = *p_ref;
-            r3 = *(p_ref += inpitch);  /* modify pointer before loading */
-            r4 = *(p_ref += inpitch);
-            /* first pixel */
-            r5 = *(p_ref += inpitch);
-            result = (r0 + r5);
-            r0 = (r1 + r4);
-            result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-            r0 = (r2 + r3);
-            result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-            *(p_cur += outpitch) = result;
-            /* second pixel */
-            r0 = *(p_ref += inpitch);
-            result = (r1 + r0);
-            r1 = (r2 + r5);
-            result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-            r1 = (r3 + r4);
-            result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-            *(p_cur += outpitch) = result;
-            /* third pixel */
-            r1 = *(p_ref += inpitch);
-            result = (r2 + r1);
-            r2 = (r3 + r0);
-            result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-            r2 = (r4 + r5);
-            result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-            *(p_cur += outpitch) = result;
-            /* fourth pixel */
-            r2 = *(p_ref += inpitch);
-            result = (r3 + r2);
-            r3 = (r4 + r1);
-            result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-            r3 = (r5 + r0);
-            result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-            *(p_cur += outpitch) = result;
-            p_ref -= (inpitch << 1);  /* move back to center of the filter of the next one */
-        }
-        p_cur += curr_offset;
-    }
-
-    return ;
-}
-
-void eVertInterp3MC(int *in, int inpitch, uint8 *out, int outpitch,
-                    int blkwidth, int blkheight, int dy)
-{
-    uint8 *p_cur;
-    int *p_ref, *tmp;
-    int result, result2, curr_offset, ref_offset;
-    int j, r0, r1, r2, r3, r4, r5;
-
-    p_cur = out;
-    curr_offset = 1 - outpitch * (blkheight - 1); /* offset vertically back up and one pixel to right */
-    ref_offset = blkheight * inpitch; /* for limit */
-
-    if (dy&1)
-    {
-        dy = (dy >> 1) ? -(inpitch << 1) : -(inpitch << 1) - inpitch;
-
-        for (j = 0; j < blkwidth; j++)
-        {
-            p_cur -= outpitch; /* compensate for the first offset */
-            p_ref = in++;
-
-            tmp = p_ref + ref_offset; /* limit */
-            while (p_ref < tmp)
-            {                           /* loop un-rolled */
-                r0 = *(p_ref - (inpitch << 1));
-                r1 = *(p_ref - inpitch);
-                r2 = *p_ref;
-                r3 = *(p_ref += inpitch);  /* modify pointer before loading */
-                r4 = *(p_ref += inpitch);
-                /* first pixel */
-                r5 = *(p_ref += inpitch);
-                result = (r0 + r5);
-                r0 = (r1 + r4);
-                result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-                r0 = (r2 + r3);
-                result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                result2 = ((p_ref[dy] + 16) >> 5);
-                CLIP_RESULT(result2)
-                /* 3/4 pel,  no need to clip */
-                result = (result + result2 + 1);
-                result = (result >> 1);
-                *(p_cur += outpitch) = result;
-                /* second pixel */
-                r0 = *(p_ref += inpitch);
-                result = (r1 + r0);
-                r1 = (r2 + r5);
-                result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-                r1 = (r3 + r4);
-                result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                result2 = ((p_ref[dy] + 16) >> 5);
-                CLIP_RESULT(result2)
-                /* 3/4 pel,  no need to clip */
-                result = (result + result2 + 1);
-                result = (result >> 1);
-                *(p_cur += outpitch) = result;
-                /* third pixel */
-                r1 = *(p_ref += inpitch);
-                result = (r2 + r1);
-                r2 = (r3 + r0);
-                result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-                r2 = (r4 + r5);
-                result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                result2 = ((p_ref[dy] + 16) >> 5);
-                CLIP_RESULT(result2)
-                /* 3/4 pel,  no need to clip */
-                result = (result + result2 + 1);
-                result = (result >> 1);
-                *(p_cur += outpitch) = result;
-                /* fourth pixel */
-                r2 = *(p_ref += inpitch);
-                result = (r3 + r2);
-                r3 = (r4 + r1);
-                result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-                r3 = (r5 + r0);
-                result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                result2 = ((p_ref[dy] + 16) >> 5);
-                CLIP_RESULT(result2)
-                /* 3/4 pel,  no need to clip */
-                result = (result + result2 + 1);
-                result = (result >> 1);
-                *(p_cur += outpitch) = result;
-                p_ref -= (inpitch << 1);  /* move back to center of the filter of the next one */
-            }
-            p_cur += curr_offset;
-        }
-    }
-    else
-    {
-        for (j = 0; j < blkwidth; j++)
-        {
-            p_cur -= outpitch; /* compensate for the first offset */
-            p_ref = in++;
-
-            tmp = p_ref + ref_offset; /* limit */
-            while (p_ref < tmp)
-            {                           /* loop un-rolled */
-                r0 = *(p_ref - (inpitch << 1));
-                r1 = *(p_ref - inpitch);
-                r2 = *p_ref;
-                r3 = *(p_ref += inpitch);  /* modify pointer before loading */
-                r4 = *(p_ref += inpitch);
-                /* first pixel */
-                r5 = *(p_ref += inpitch);
-                result = (r0 + r5);
-                r0 = (r1 + r4);
-                result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-                r0 = (r2 + r3);
-                result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                *(p_cur += outpitch) = result;
-                /* second pixel */
-                r0 = *(p_ref += inpitch);
-                result = (r1 + r0);
-                r1 = (r2 + r5);
-                result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-                r1 = (r3 + r4);
-                result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                *(p_cur += outpitch) = result;
-                /* third pixel */
-                r1 = *(p_ref += inpitch);
-                result = (r2 + r1);
-                r2 = (r3 + r0);
-                result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-                r2 = (r4 + r5);
-                result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                *(p_cur += outpitch) = result;
-                /* fourth pixel */
-                r2 = *(p_ref += inpitch);
-                result = (r3 + r2);
-                r3 = (r4 + r1);
-                result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-                r3 = (r5 + r0);
-                result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-                result = (result + 512) >> 10;
-                CLIP_RESULT(result)
-                *(p_cur += outpitch) = result;
-                p_ref -= (inpitch << 1);  /* move back to center of the filter of the next one */
-            }
-            p_cur += curr_offset;
-        }
-    }
-
-    return ;
-}
-
-void eDiagonalInterpMC(uint8 *in1, uint8 *in2, int inpitch,
-                       uint8 *out, int outpitch,
-                       int blkwidth, int blkheight)
-{
-    int j, i;
-    int result;
-    uint8 *p_cur, *p_ref, *p_tmp8, *tmp;
-    int curr_offset, ref_offset;
-    uint8 tmp_res[24][24], tmp_in[24][24];
-    uint32 *p_tmp;
-    uint32 pkres, tmp_result;
-    int32 r0, r1, r2, r3, r4, r5;
-    int32 r6, r7, r8, r9, r10, r13;
-
-    ref_offset = inpitch - blkwidth;
-    p_ref = in1 - 2;
-    /* perform horizontal interpolation */
-    /* not word-aligned */
-    /* It is faster to read 1 byte at time to avoid calling CreateAlign */
-    /*  if(((uint32)p_ref)&0x3)
-        {
-            CreateAlign(p_ref,inpitch,0,&tmp_in[0][0],blkwidth+8,blkheight);
-            p_ref = &tmp_in[0][0];
-            ref_offset = 24-blkwidth;
-        }*/
-
-    p_tmp = (uint32*) & (tmp_res[0][0]);
-    for (j = blkheight; j > 0; j--)
-    {
-        r13 = 0;
-        tmp = p_ref + blkwidth;
-
-        //r0 = *((uint32*)p_ref);   /* d,c,b,a */
-        //r1 = (r0>>8)&0xFF00FF;    /* 0,d,0,b */
-        //r0 &= 0xFF00FF;           /* 0,c,0,a */
-        /* It is faster to read 1 byte at a time */
-        r0 = p_ref[0];
-        r1 = p_ref[2];
-        r0 |= (r1 << 16);           /* 0,c,0,a */
-        r1 = p_ref[1];
-        r2 = p_ref[3];
-        r1 |= (r2 << 16);           /* 0,d,0,b */
-
-        while (p_ref < tmp)
-        {
-            //r2 = *((uint32*)(p_ref+=4));/* h,g,f,e */
-            //r3 = (r2>>8)&0xFF00FF;  /* 0,h,0,f */
-            //r2 &= 0xFF00FF;           /* 0,g,0,e */
-            /* It is faster to read 1 byte at a time */
-            r2 = *(p_ref += 4);
-            r3 = p_ref[2];
-            r2 |= (r3 << 16);           /* 0,g,0,e */
-            r3 = p_ref[1];
-            r4 = p_ref[3];
-            r3 |= (r4 << 16);           /* 0,h,0,f */
-
-            r4 = r0 + r3;       /* c+h, a+f */
-            r5 = r0 + r1;   /* c+d, a+b */
-            r6 = r2 + r3;   /* g+h, e+f */
-            r5 >>= 16;
-            r5 |= (r6 << 16);   /* e+f, c+d */
-            r4 += r5 * 20;      /* c+20*e+20*f+h, a+20*c+20*d+f */
-            r4 += 0x100010; /* +16, +16 */
-            r5 = r1 + r2;       /* d+g, b+e */
-            r4 -= r5 * 5;       /* c-5*d+20*e+20*f-5*g+h, a-5*b+20*c+20*d-5*e+f */
-            r4 >>= 5;
-            r13 |= r4;      /* check clipping */
-            r4 &= 0xFF00FF; /* mask */
-
-            r5 = p_ref[4];  /* i */
-            r6 = (r5 << 16);
-            r5 = r6 | (r2 >> 16);/* 0,i,0,g */
-            r5 += r1;       /* d+i, b+g */ /* r5 not free */
-            r1 >>= 16;
-            r1 |= (r3 << 16); /* 0,f,0,d */ /* r1 has changed */
-            r1 += r2;       /* f+g, d+e */
-            r5 += 20 * r1;  /* d+20f+20g+i, b+20d+20e+g */
-            r0 >>= 16;
-            r0 |= (r2 << 16); /* 0,e,0,c */ /* r0 has changed */
-            r0 += r3;       /* e+h, c+f */
-            r5 += 0x100010; /* 16,16 */
-            r5 -= r0 * 5;       /* d-5e+20f+20g-5h+i, b-5c+20d+20e-5f+g */
-            r5 >>= 5;
-            r13 |= r5;      /* check clipping */
-            r5 &= 0xFF00FF; /* mask */
-
-            r4 |= (r5 << 8);    /* pack them together */
-            *p_tmp++ = r4;
-            r1 = r3;
-            r0 = r2;
-        }
-        p_tmp += ((24 - blkwidth) >> 2); /* move to the next line */
-        p_ref += ref_offset;  /*    ref_offset = inpitch-blkwidth; */
-
-        if (r13&0xFF000700) /* need clipping */
-        {
-            /* move back to the beginning of the line */
-            p_ref -= (ref_offset + blkwidth);   /* input */
-            p_tmp -= 6; /* intermediate output */
-            tmp = p_ref + blkwidth;
-            while (p_ref < tmp)
-            {
-                r0 = *p_ref++;
-                r1 = *p_ref++;
-                r2 = *p_ref++;
-                r3 = *p_ref++;
-                r4 = *p_ref++;
-                /* first pixel */
-                r5 = *p_ref++;
-                result = (r0 + r5);
-                r0 = (r1 + r4);
-                result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-                r0 = (r2 + r3);
-                result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-                result = (result + 16) >> 5;
-                CLIP_RESULT(result)
-                pkres = result;
-                /* second pixel */
-                r0 = *p_ref++;
-                result = (r1 + r0);
-                r1 = (r2 + r5);
-                result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-                r1 = (r3 + r4);
-                result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-                result = (result + 16) >> 5;
-                CLIP_RESULT(result)
-                pkres |= (result << 8);
-                /* third pixel */
-                r1 = *p_ref++;
-                result = (r2 + r1);
-                r2 = (r3 + r0);
-                result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-                r2 = (r4 + r5);
-                result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-                result = (result + 16) >> 5;
-                CLIP_RESULT(result)
-                pkres |= (result << 16);
-                /* fourth pixel */
-                r2 = *p_ref++;
-                result = (r3 + r2);
-                r3 = (r4 + r1);
-                result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-                r3 = (r5 + r0);
-                result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-                result = (result + 16) >> 5;
-                CLIP_RESULT(result)
-                pkres |= (result << 24);
-
-                *p_tmp++ = pkres; /* write 4 pixel */
-                p_ref -= 5;
-            }
-            p_tmp += ((24 - blkwidth) >> 2); /* move to the next line */
-            p_ref += ref_offset;  /*    ref_offset = inpitch-blkwidth; */
-        }
-    }
-
-    /*  perform vertical interpolation */
-    /* not word-aligned */
-    if (((intptr_t)in2)&0x3)
-    {
-        eCreateAlign(in2, inpitch, -2, &tmp_in[0][0], blkwidth, blkheight + 5);
-        in2 = &tmp_in[2][0];
-        inpitch = 24;
-    }
-
-    p_cur = out;
-    curr_offset = 1 - outpitch * (blkheight - 1); /* offset vertically up and one pixel right */
-    pkres = blkheight * inpitch; /* reuse it for limit */
-
-    curr_offset += 3;
-
-    for (j = 0; j < blkwidth; j += 4, in2 += 4)
-    {
-        r13 = 0;
-        p_ref = in2;
-        p_tmp8 = &(tmp_res[0][j]); /* intermediate result */
-        p_tmp8 -= 24;  /* compensate for the first offset */
-        p_cur -= outpitch;  /* compensate for the first offset */
-        tmp = p_ref + pkres; /* limit */
-        while (p_ref < tmp)  /* the loop un-rolled  */
-        {
-            /* Read 1 byte at a time is too slow, too many read and pack ops, need to call CreateAlign */
-            /*p_ref8 = p_ref-(inpitch<<1);          r0 = p_ref8[0];         r1 = p_ref8[2];
-            r0 |= (r1<<16);         r6 = p_ref8[1];         r1 = p_ref8[3];
-            r6 |= (r1<<16);         p_ref+=inpitch; */
-            r0 = *((uint32*)(p_ref - (inpitch << 1))); /* load 4 bytes */
-            p_ref += inpitch;
-            r6 = (r0 >> 8) & 0xFF00FF; /* second and fourth byte */
-            r0 &= 0xFF00FF;
-
-            /*p_ref8 = p_ref+(inpitch<<1);
-            r1 = p_ref8[0];         r7 = p_ref8[2];         r1 |= (r7<<16);
-            r7 = p_ref8[1];         r2 = p_ref8[3];         r7 |= (r2<<16);*/
-            r1 = *((uint32*)(p_ref + (inpitch << 1)));  /* r1, r7, ref[3] */
-            r7 = (r1 >> 8) & 0xFF00FF;
-            r1 &= 0xFF00FF;
-
-            r0 += r1;
-            r6 += r7;
-
-            /*r2 = p_ref[0];            r8 = p_ref[2];          r2 |= (r8<<16);
-            r8 = p_ref[1];          r1 = p_ref[3];          r8 |= (r1<<16);*/
-            r2 = *((uint32*)p_ref); /* r2, r8, ref[1] */
-            r8 = (r2 >> 8) & 0xFF00FF;
-            r2 &= 0xFF00FF;
-
-            /*p_ref8 = p_ref-inpitch;           r1 = p_ref8[0];         r7 = p_ref8[2];
-            r1 |= (r7<<16);         r1 += r2;           r7 = p_ref8[1];
-            r2 = p_ref8[3];         r7 |= (r2<<16);*/
-            r1 = *((uint32*)(p_ref - inpitch)); /* r1, r7, ref[0] */
-            r7 = (r1 >> 8) & 0xFF00FF;
-            r1 &= 0xFF00FF;
-            r1 += r2;
-
-            r7 += r8;
-
-            r0 += 20 * r1;
-            r6 += 20 * r7;
-            r0 += 0x100010;
-            r6 += 0x100010;
-
-            /*p_ref8 = p_ref-(inpitch<<1);          r2 = p_ref8[0];         r8 = p_ref8[2];
-            r2 |= (r8<<16);         r8 = p_ref8[1];         r1 = p_ref8[3];         r8 |= (r1<<16);*/
-            r2 = *((uint32*)(p_ref - (inpitch << 1))); /* r2, r8, ref[-1] */
-            r8 = (r2 >> 8) & 0xFF00FF;
-            r2 &= 0xFF00FF;
-
-            /*p_ref8 = p_ref+inpitch;           r1 = p_ref8[0];         r7 = p_ref8[2];
-            r1 |= (r7<<16);         r1 += r2;           r7 = p_ref8[1];
-            r2 = p_ref8[3];         r7 |= (r2<<16);*/
-            r1 = *((uint32*)(p_ref + inpitch)); /* r1, r7, ref[2] */
-            r7 = (r1 >> 8) & 0xFF00FF;
-            r1 &= 0xFF00FF;
-            r1 += r2;
-
-            r7 += r8;
-
-            r0 -= 5 * r1;
-            r6 -= 5 * r7;
-
-            r0 >>= 5;
-            r6 >>= 5;
-            /* clip */
-            r13 |= r6;
-            r13 |= r0;
-            //CLIPPACK(r6,result)
-            /* add with horizontal results */
-            r10 = *((uint32*)(p_tmp8 += 24));
-            r9 = (r10 >> 8) & 0xFF00FF;
-            r10 &= 0xFF00FF;
-
-            r0 += r10;
-            r0 += 0x10001;
-            r0 = (r0 >> 1) & 0xFF00FF;   /* mask to 8 bytes */
-
-            r6 += r9;
-            r6 += 0x10001;
-            r6 = (r6 >> 1) & 0xFF00FF;   /* mask to 8 bytes */
-
-            r0 |= (r6 << 8);  /* pack it back */
-            *((uint32*)(p_cur += outpitch)) = r0;
-        }
-        p_cur += curr_offset; /* offset to the next pixel */
-        if (r13 & 0xFF000700) /* this column need clipping */
-        {
-            p_cur -= 4;
-            for (i = 0; i < 4; i++)
-            {
-                p_ref = in2 + i;
-                p_tmp8 = &(tmp_res[0][j+i]); /* intermediate result */
-                p_tmp8 -= 24;  /* compensate for the first offset */
-                p_cur -= outpitch;  /* compensate for the first offset */
-                tmp = p_ref + pkres; /* limit */
-                while (p_ref < tmp)  /* the loop un-rolled  */
-                {
-                    r0 = *(p_ref - (inpitch << 1));
-                    r1 = *(p_ref - inpitch);
-                    r2 = *p_ref;
-                    r3 = *(p_ref += inpitch);  /* modify pointer before loading */
-                    r4 = *(p_ref += inpitch);
-                    /* first pixel */
-                    r5 = *(p_ref += inpitch);
-                    result = (r0 + r5);
-                    r0 = (r1 + r4);
-                    result -= (r0 * 5);//result -= r0;  result -= (r0<<2);
-                    r0 = (r2 + r3);
-                    result += (r0 * 20);//result += (r0<<4);    result += (r0<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    tmp_result = *(p_tmp8 += 24);  /* modify pointer before loading */
-                    result = (result + tmp_result + 1);  /* no clip */
-                    result = (result >> 1);
-                    *(p_cur += outpitch) = result;
-                    /* second pixel */
-                    r0 = *(p_ref += inpitch);
-                    result = (r1 + r0);
-                    r1 = (r2 + r5);
-                    result -= (r1 * 5);//result -= r1;  result -= (r1<<2);
-                    r1 = (r3 + r4);
-                    result += (r1 * 20);//result += (r1<<4);    result += (r1<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    tmp_result = *(p_tmp8 += 24);  /* intermediate result */
-                    result = (result + tmp_result + 1);  /* no clip */
-                    result = (result >> 1);
-                    *(p_cur += outpitch) = result;
-                    /* third pixel */
-                    r1 = *(p_ref += inpitch);
-                    result = (r2 + r1);
-                    r2 = (r3 + r0);
-                    result -= (r2 * 5);//result -= r2;  result -= (r2<<2);
-                    r2 = (r4 + r5);
-                    result += (r2 * 20);//result += (r2<<4);    result += (r2<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    tmp_result = *(p_tmp8 += 24);  /* intermediate result */
-                    result = (result + tmp_result + 1);  /* no clip */
-                    result = (result >> 1);
-                    *(p_cur += outpitch) = result;
-                    /* fourth pixel */
-                    r2 = *(p_ref += inpitch);
-                    result = (r3 + r2);
-                    r3 = (r4 + r1);
-                    result -= (r3 * 5);//result -= r3;  result -= (r3<<2);
-                    r3 = (r5 + r0);
-                    result += (r3 * 20);//result += (r3<<4);    result += (r3<<2);
-                    result = (result + 16) >> 5;
-                    CLIP_RESULT(result)
-                    tmp_result = *(p_tmp8 += 24);  /* intermediate result */
-                    result = (result + tmp_result + 1);  /* no clip */
-                    result = (result >> 1);
-                    *(p_cur += outpitch) = result;
-                    p_ref -= (inpitch << 1);  /* move back to center of the filter of the next one */
-                }
-                p_cur += (curr_offset - 3);
-            }
-        }
-    }
-
-    return ;
-}
-
-/* position G */
-void eFullPelMC(uint8 *in, int inpitch, uint8 *out, int outpitch,
-                int blkwidth, int blkheight)
-{
-    int i, j;
-    int offset_in = inpitch - blkwidth;
-    int offset_out = outpitch - blkwidth;
-    uint32 temp;
-    uint8 byte;
-
-    if (((intptr_t)in)&3)
-    {
-        for (j = blkheight; j > 0; j--)
-        {
-            for (i = blkwidth; i > 0; i -= 4)
-            {
-                temp = *in++;
-                byte = *in++;
-                temp |= (byte << 8);
-                byte = *in++;
-                temp |= (byte << 16);
-                byte = *in++;
-                temp |= (byte << 24);
-
-                *((uint32*)out) = temp; /* write 4 bytes */
-                out += 4;
-            }
-            out += offset_out;
-            in += offset_in;
-        }
-    }
-    else
-    {
-        for (j = blkheight; j > 0; j--)
-        {
-            for (i = blkwidth; i > 0; i -= 4)
-            {
-                temp = *((uint32*)in);
-                *((uint32*)out) = temp;
-                in += 4;
-                out += 4;
-            }
-            out += offset_out;
-            in += offset_in;
-        }
-    }
-    return ;
-}
-
-void ePadChroma(uint8 *ref, int picwidth, int picheight, int picpitch, int x_pos, int y_pos)
-{
-    int pad_height;
-    int pad_width;
-    uint8 *start;
-    uint32 word1, word2, word3;
-    int offset, j;
-
-
-    pad_height = 8 + ((y_pos & 7) ? 1 : 0);
-    pad_width = 8 + ((x_pos & 7) ? 1 : 0);
-
-    y_pos >>= 3;
-    x_pos >>= 3;
-    // pad vertical first
-    if (y_pos < 0) // need to pad up
-    {
-        if (x_pos < -8) start = ref - 8;
-        else if (x_pos + pad_width > picwidth + 7) start = ref + picwidth + 7 - pad_width;
-        else start = ref + x_pos;
-
-        /* word-align start */
-        offset = (intptr_t)start & 0x3;
-        if (offset) start -= offset;
-
-        word1 = *((uint32*)start);
-        word2 = *((uint32*)(start + 4));
-        word3 = *((uint32*)(start + 8));
-
-        /* pad up N rows */
-        j = -y_pos;
-        if (j > 8) j = 8;
-        while (j--)
-        {
-            *((uint32*)(start -= picpitch)) = word1;
-            *((uint32*)(start + 4)) = word2;
-            *((uint32*)(start + 8)) = word3;
-        }
-
-    }
-    else if (y_pos + pad_height >= picheight) /* pad down */
-    {
-        if (x_pos < -8) start = ref + picpitch * (picheight - 1) - 8;
-        else if (x_pos + pad_width > picwidth + 7) start = ref + picpitch * (picheight - 1) +
-                    picwidth + 7 - pad_width;
-        else    start = ref + picpitch * (picheight - 1) + x_pos;
-
-        /* word-align start */
-        offset = (intptr_t)start & 0x3;
-        if (offset) start -= offset;
-
-        word1 = *((uint32*)start);
-        word2 = *((uint32*)(start + 4));
-        word3 = *((uint32*)(start + 8));
-
-        /* pad down N rows */
-        j = y_pos + pad_height - picheight;
-        if (j > 8) j = 8;
-        while (j--)
-        {
-            *((uint32*)(start += picpitch)) = word1;
-            *((uint32*)(start + 4)) = word2;
-            *((uint32*)(start + 8)) = word3;
-        }
-    }
-
-    /* now pad horizontal */
-    if (x_pos < 0) // pad left
-    {
-        if (y_pos < -8) start = ref - (picpitch << 3);
-        else if (y_pos + pad_height > picheight + 7) start = ref + (picheight + 7 - pad_height) * picpitch;
-        else start = ref + y_pos * picpitch;
-
-        // now pad left 8 pixels for pad_height rows */
-        j = pad_height;
-        start -= picpitch;
-        while (j--)
-        {
-            word1 = *(start += picpitch);
-            word1 |= (word1 << 8);
-            word1 |= (word1 << 16);
-            *((uint32*)(start - 8)) = word1;
-            *((uint32*)(start - 4)) = word1;
-        }
-    }
-    else if (x_pos + pad_width >= picwidth) /* pad right */
-    {
-        if (y_pos < -8) start = ref - (picpitch << 3) + picwidth - 1;
-        else if (y_pos + pad_height > picheight + 7) start = ref + (picheight + 7 - pad_height) * picpitch + picwidth - 1;
-        else start = ref + y_pos * picpitch + picwidth - 1;
-
-        // now pad right 8 pixels for pad_height rows */
-        j = pad_height;
-        start -= picpitch;
-        while (j--)
-        {
-            word1 = *(start += picpitch);
-            word1 |= (word1 << 8);
-            word1 |= (word1 << 16);
-            *((uint32*)(start + 1)) = word1;
-            *((uint32*)(start + 5)) = word1;
-        }
-    }
-
-    return ;
-}
-
-
-void eChromaMotionComp(uint8 *ref, int picwidth, int picheight,
-                       int x_pos, int y_pos,
-                       uint8 *pred, int picpitch,
-                       int blkwidth, int blkheight)
-{
-    int dx, dy;
-    int offset_dx, offset_dy;
-    int index;
-
-    ePadChroma(ref, picwidth, picheight, picpitch, x_pos, y_pos);
-
-    dx = x_pos & 7;
-    dy = y_pos & 7;
-    offset_dx = (dx + 7) >> 3;
-    offset_dy = (dy + 7) >> 3;
-    x_pos = x_pos >> 3;  /* round it to full-pel resolution */
-    y_pos = y_pos >> 3;
-
-    ref += y_pos * picpitch + x_pos;
-
-    index = offset_dx + (offset_dy << 1) + ((blkwidth << 1) & 0x7);
-
-    (*(eChromaMC_SIMD[index]))(ref, picpitch , dx, dy, pred, picpitch, blkwidth, blkheight);
-    return ;
-}
-
-
-/* SIMD routines, unroll the loops in vertical direction, decreasing loops (things to be done) */
-void eChromaDiagonalMC_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                            uint8 *pOut, int predPitch, int blkwidth, int blkheight)
-{
-    int32 r0, r1, r2, r3, result0, result1;
-    uint8 temp[288];
-    uint8 *ref, *out;
-    int i, j;
-    int dx_8 = 8 - dx;
-    int dy_8 = 8 - dy;
-
-    /* horizontal first */
-    out = temp;
-    for (i = 0; i < blkheight + 1; i++)
-    {
-        ref = pRef;
-        r0 = ref[0];
-        for (j = 0; j < blkwidth; j += 4)
-        {
-            r0 |= (ref[2] << 16);
-            result0 = dx_8 * r0;
-
-            r1 = ref[1] | (ref[3] << 16);
-            result0 += dx * r1;
-            *(int32 *)out = result0;
-
-            result0 = dx_8 * r1;
-
-            r2 = ref[4];
-            r0 = r0 >> 16;
-            r1 = r0 | (r2 << 16);
-            result0 += dx * r1;
-            *(int32 *)(out + 16) = result0;
-
-            ref += 4;
-            out += 4;
-            r0 = r2;
-        }
-        pRef += srcPitch;
-        out += (32 - blkwidth);
-    }
-
-//  pRef -= srcPitch*(blkheight+1);
-    ref = temp;
-
-    for (j = 0; j < blkwidth; j += 4)
-    {
-        r0 = *(int32 *)ref;
-        r1 = *(int32 *)(ref + 16);
-        ref += 32;
-        out = pOut;
-        for (i = 0; i < (blkheight >> 1); i++)
-        {
-            result0 = dy_8 * r0 + 0x00200020;
-            r2 = *(int32 *)ref;
-            result0 += dy * r2;
-            result0 >>= 6;
-            result0 &= 0x00FF00FF;
-            r0 = r2;
-
-            result1 = dy_8 * r1 + 0x00200020;
-            r3 = *(int32 *)(ref + 16);
-            result1 += dy * r3;
-            result1 >>= 6;
-            result1 &= 0x00FF00FF;
-            r1 = r3;
-            *(int32 *)out = result0 | (result1 << 8);
-            out += predPitch;
-            ref += 32;
-
-            result0 = dy_8 * r0 + 0x00200020;
-            r2 = *(int32 *)ref;
-            result0 += dy * r2;
-            result0 >>= 6;
-            result0 &= 0x00FF00FF;
-            r0 = r2;
-
-            result1 = dy_8 * r1 + 0x00200020;
-            r3 = *(int32 *)(ref + 16);
-            result1 += dy * r3;
-            result1 >>= 6;
-            result1 &= 0x00FF00FF;
-            r1 = r3;
-            *(int32 *)out = result0 | (result1 << 8);
-            out += predPitch;
-            ref += 32;
-        }
-        pOut += 4;
-        ref = temp + 4; /* since it can only iterate twice max */
-    }
-    return;
-}
-
-void eChromaHorizontalMC_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                              uint8 *pOut, int predPitch, int blkwidth, int blkheight)
-{
-    (void)(dy);
-
-    int32 r0, r1, r2, result0, result1;
-    uint8 *ref, *out;
-    int i, j;
-    int dx_8 = 8 - dx;
-
-    /* horizontal first */
-    for (i = 0; i < blkheight; i++)
-    {
-        ref = pRef;
-        out = pOut;
-
-        r0 = ref[0];
-        for (j = 0; j < blkwidth; j += 4)
-        {
-            r0 |= (ref[2] << 16);
-            result0 = dx_8 * r0 + 0x00040004;
-
-            r1 = ref[1] | (ref[3] << 16);
-            result0 += dx * r1;
-            result0 >>= 3;
-            result0 &= 0x00FF00FF;
-
-            result1 = dx_8 * r1 + 0x00040004;
-
-            r2 = ref[4];
-            r0 = r0 >> 16;
-            r1 = r0 | (r2 << 16);
-            result1 += dx * r1;
-            result1 >>= 3;
-            result1 &= 0x00FF00FF;
-
-            *(int32 *)out = result0 | (result1 << 8);
-
-            ref += 4;
-            out += 4;
-            r0 = r2;
-        }
-
-        pRef += srcPitch;
-        pOut += predPitch;
-    }
-    return;
-}
-
-void eChromaVerticalMC_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                            uint8 *pOut, int predPitch, int blkwidth, int blkheight)
-{
-    (void)(dx);
-
-    int32 r0, r1, r2, r3, result0, result1;
-    int i, j;
-    uint8 *ref, *out;
-    int dy_8 = 8 - dy;
-    /* vertical first */
-    for (i = 0; i < blkwidth; i += 4)
-    {
-        ref = pRef;
-        out = pOut;
-
-        r0 = ref[0] | (ref[2] << 16);
-        r1 = ref[1] | (ref[3] << 16);
-        ref += srcPitch;
-        for (j = 0; j < blkheight; j++)
-        {
-            result0 = dy_8 * r0 + 0x00040004;
-            r2 = ref[0] | (ref[2] << 16);
-            result0 += dy * r2;
-            result0 >>= 3;
-            result0 &= 0x00FF00FF;
-            r0 = r2;
-
-            result1 = dy_8 * r1 + 0x00040004;
-            r3 = ref[1] | (ref[3] << 16);
-            result1 += dy * r3;
-            result1 >>= 3;
-            result1 &= 0x00FF00FF;
-            r1 = r3;
-            *(int32 *)out = result0 | (result1 << 8);
-            ref += srcPitch;
-            out += predPitch;
-        }
-        pOut += 4;
-        pRef += 4;
-    }
-    return;
-}
-
-void eChromaDiagonalMC2_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                             uint8 *pOut,  int predPitch, int blkwidth, int blkheight)
-{
-    (void)(blkwidth);
-
-    int32 r0, r1, temp0, temp1, result;
-    int32 temp[9];
-    int32 *out;
-    int i, r_temp;
-    int dy_8 = 8 - dy;
-
-    /* horizontal first */
-    out = temp;
-    for (i = 0; i < blkheight + 1; i++)
-    {
-        r_temp = pRef[1];
-        temp0 = (pRef[0] << 3) + dx * (r_temp - pRef[0]);
-        temp1 = (r_temp << 3) + dx * (pRef[2] - r_temp);
-        r0 = temp0 | (temp1 << 16);
-        *out++ = r0;
-        pRef += srcPitch;
-    }
-
-    pRef -= srcPitch * (blkheight + 1);
-
-    out = temp;
-
-    r0 = *out++;
-
-    for (i = 0; i < blkheight; i++)
-    {
-        result = dy_8 * r0 + 0x00200020;
-        r1 = *out++;
-        result += dy * r1;
-        result >>= 6;
-        result &= 0x00FF00FF;
-        *(int16 *)pOut = (result >> 8) | (result & 0xFF);
-        r0 = r1;
-        pOut += predPitch;
-    }
-    return;
-}
-
-void eChromaHorizontalMC2_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                               uint8 *pOut, int predPitch, int blkwidth, int blkheight)
-{
-    (void)(dy);
-    (void)(blkwidth);
-
-    int i, temp, temp0, temp1;
-
-    /* horizontal first */
-    for (i = 0; i < blkheight; i++)
-    {
-        temp = pRef[1];
-        temp0 = ((pRef[0] << 3) + dx * (temp - pRef[0]) + 4) >> 3;
-        temp1 = ((temp << 3) + dx * (pRef[2] - temp) + 4) >> 3;
-
-        *(int16 *)pOut = temp0 | (temp1 << 8);
-        pRef += srcPitch;
-        pOut += predPitch;
-
-    }
-    return;
-}
-void eChromaVerticalMC2_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                             uint8 *pOut, int predPitch, int blkwidth, int blkheight)
-{
-    (void)(dx);
-    (void)(blkwidth);
-
-    int32 r0, r1, result;
-    int i;
-    int dy_8 = 8 - dy;
-    r0 = pRef[0] | (pRef[1] << 16);
-    pRef += srcPitch;
-    for (i = 0; i < blkheight; i++)
-    {
-        result = dy_8 * r0 + 0x00040004;
-        r1 = pRef[0] | (pRef[1] << 16);
-        result += dy * r1;
-        result >>= 3;
-        result &= 0x00FF00FF;
-        *(int16 *)pOut = (result >> 8) | (result & 0xFF);
-        r0 = r1;
-        pRef += srcPitch;
-        pOut += predPitch;
-    }
-    return;
-}
-
-void eChromaFullMC_SIMD(uint8 *pRef, int srcPitch, int dx, int dy,
-                        uint8 *pOut, int predPitch, int blkwidth, int blkheight)
-{
-    (void)(dx);
-    (void)(dy);
-
-    int i, j;
-    int offset_in = srcPitch - blkwidth;
-    int offset_out = predPitch - blkwidth;
-    uint16 temp;
-    uint8 byte;
-
-    if (((intptr_t)pRef)&1)
-    {
-        for (j = blkheight; j > 0; j--)
-        {
-            for (i = blkwidth; i > 0; i -= 2)
-            {
-                temp = *pRef++;
-                byte = *pRef++;
-                temp |= (byte << 8);
-                *((uint16*)pOut) = temp; /* write 2 bytes */
-                pOut += 2;
-            }
-            pOut += offset_out;
-            pRef += offset_in;
-        }
-    }
-    else
-    {
-        for (j = blkheight; j > 0; j--)
-        {
-            for (i = blkwidth; i > 0; i -= 2)
-            {
-                temp = *((uint16*)pRef);
-                *((uint16*)pOut) = temp;
-                pRef += 2;
-                pOut += 2;
-            }
-            pOut += offset_out;
-            pRef += offset_in;
-        }
-    }
-    return ;
-}
diff --git a/media/libstagefright/codecs/avc/enc/src/motion_est.cpp b/media/libstagefright/codecs/avc/enc/src/motion_est.cpp
deleted file mode 100644
index 00c56c8..0000000
--- a/media/libstagefright/codecs/avc/enc/src/motion_est.cpp
+++ /dev/null
@@ -1,1774 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-
-#define MIN_GOP     1   /* minimum size of GOP, 1/23/01, need to be tested */
-
-#define DEFAULT_REF_IDX     0  /* always from the first frame in the reflist */
-
-#define ALL_CAND_EQUAL  10  /*  any number greater than 5 will work */
-
-
-/* from TMN 3.2 */
-#define PREF_NULL_VEC 129   /* zero vector bias */
-#define PREF_16_VEC 129     /* 1MV bias versus 4MVs*/
-#define PREF_INTRA  3024//512       /* bias for INTRA coding */
-
-const static int tab_exclude[9][9] =  // [last_loc][curr_loc]
-{
-    {0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {0, 0, 0, 0, 1, 1, 1, 0, 0},
-    {0, 0, 0, 0, 1, 1, 1, 1, 1},
-    {0, 0, 0, 0, 0, 0, 1, 1, 1},
-    {0, 1, 1, 0, 0, 0, 1, 1, 1},
-    {0, 1, 1, 0, 0, 0, 0, 0, 1},
-    {0, 1, 1, 1, 1, 0, 0, 0, 1},
-    {0, 0, 1, 1, 1, 0, 0, 0, 0},
-    {0, 0, 1, 1, 1, 1, 1, 0, 0}
-}; //to decide whether to continue or compute
-
-const static int refine_next[8][2] =    /* [curr_k][increment] */
-{
-    {0, 0}, {2, 0}, {1, 1}, {0, 2}, { -1, 1}, { -2, 0}, { -1, -1}, {0, -2}
-};
-
-#ifdef _SAD_STAT
-uint32 num_MB = 0;
-uint32 num_cand = 0;
-#endif
-
-/************************************************************************/
-#define TH_INTER_2  100  /* temporary for now */
-
-//#define FIXED_INTERPRED_MODE  AVC_P16
-#define FIXED_REF_IDX   0
-#define FIXED_MVX 0
-#define FIXED_MVY 0
-
-// only use when AVC_P8 or AVC_P8ref0
-#define FIXED_SUBMB_MODE    AVC_4x4
-/*************************************************************************/
-
-/* Initialize arrays necessary for motion search */
-AVCEnc_Status InitMotionSearchModule(AVCHandle *avcHandle)
-{
-    AVCEncObject *encvid = (AVCEncObject*) avcHandle->AVCObject;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    int search_range = rateCtrl->mvRange;
-    int number_of_subpel_positions = 4 * (2 * search_range + 3);
-    int max_mv_bits, max_mvd;
-    int temp_bits = 0;
-    uint8 *mvbits;
-    int bits, imax, imin, i;
-    uint8* subpel_pred = (uint8*) encvid->subpel_pred; // all 16 sub-pel positions
-
-
-    while (number_of_subpel_positions > 0)
-    {
-        temp_bits++;
-        number_of_subpel_positions >>= 1;
-    }
-
-    max_mv_bits = 3 + 2 * temp_bits;
-    max_mvd  = (1 << (max_mv_bits >> 1)) - 1;
-
-    encvid->mvbits_array = (uint8*) avcHandle->CBAVC_Malloc(encvid->avcHandle->userData,
-                           sizeof(uint8) * (2 * max_mvd + 1), DEFAULT_ATTR);
-
-    if (encvid->mvbits_array == NULL)
-    {
-        return AVCENC_MEMORY_FAIL;
-    }
-
-    mvbits = encvid->mvbits  = encvid->mvbits_array + max_mvd;
-
-    mvbits[0] = 1;
-    for (bits = 3; bits <= max_mv_bits; bits += 2)
-    {
-        imax = 1    << (bits >> 1);
-        imin = imax >> 1;
-
-        for (i = imin; i < imax; i++)   mvbits[-i] = mvbits[i] = bits;
-    }
-
-    /* initialize half-pel search */
-    encvid->hpel_cand[0] = subpel_pred + REF_CENTER;
-    encvid->hpel_cand[1] = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE + 1 ;
-    encvid->hpel_cand[2] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE + 1;
-    encvid->hpel_cand[3] = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE + 25;
-    encvid->hpel_cand[4] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE + 25;
-    encvid->hpel_cand[5] = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE + 25;
-    encvid->hpel_cand[6] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE + 24;
-    encvid->hpel_cand[7] = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE + 24;
-    encvid->hpel_cand[8] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE;
-
-    /* For quarter-pel interpolation around best half-pel result */
-
-    encvid->bilin_base[0][0] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE;
-    encvid->bilin_base[0][1] = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE + 1;
-    encvid->bilin_base[0][2] = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE + 24;
-    encvid->bilin_base[0][3] = subpel_pred + REF_CENTER;
-
-
-    encvid->bilin_base[1][0] = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE;
-    encvid->bilin_base[1][1] = subpel_pred + REF_CENTER - 24;
-    encvid->bilin_base[1][2] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE;
-    encvid->bilin_base[1][3] = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE + 1;
-
-    encvid->bilin_base[2][0] = subpel_pred + REF_CENTER - 24;
-    encvid->bilin_base[2][1] = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE + 1;
-    encvid->bilin_base[2][2] = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE + 1;
-    encvid->bilin_base[2][3] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE + 1;
-
-    encvid->bilin_base[3][0] = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE + 1;
-    encvid->bilin_base[3][1] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE + 1;
-    encvid->bilin_base[3][2] = subpel_pred + REF_CENTER;
-    encvid->bilin_base[3][3] = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE + 25;
-
-    encvid->bilin_base[4][0] = subpel_pred + REF_CENTER;
-    encvid->bilin_base[4][1] = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE + 25;
-    encvid->bilin_base[4][2] = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE + 25;
-    encvid->bilin_base[4][3] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE + 25;
-
-    encvid->bilin_base[5][0] = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE + 24;
-    encvid->bilin_base[5][1] = subpel_pred + REF_CENTER;
-    encvid->bilin_base[5][2] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE + 24;
-    encvid->bilin_base[5][3] = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE + 25;
-
-    encvid->bilin_base[6][0] = subpel_pred + REF_CENTER - 1;
-    encvid->bilin_base[6][1] = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE + 24;
-    encvid->bilin_base[6][2] = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE + 24;
-    encvid->bilin_base[6][3] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE + 24;
-
-    encvid->bilin_base[7][0] = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE;
-    encvid->bilin_base[7][1] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE;
-    encvid->bilin_base[7][2] = subpel_pred + REF_CENTER - 1;
-    encvid->bilin_base[7][3] = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE + 24;
-
-    encvid->bilin_base[8][0] = subpel_pred + REF_CENTER - 25;
-    encvid->bilin_base[8][1] = subpel_pred + V0Q_H2Q * SUBPEL_PRED_BLK_SIZE;
-    encvid->bilin_base[8][2] = subpel_pred + V2Q_H0Q * SUBPEL_PRED_BLK_SIZE;
-    encvid->bilin_base[8][3] = subpel_pred + V2Q_H2Q * SUBPEL_PRED_BLK_SIZE;
-
-
-    return AVCENC_SUCCESS;
-}
-
-/* Clean-up memory */
-void CleanMotionSearchModule(AVCHandle *avcHandle)
-{
-    AVCEncObject *encvid = (AVCEncObject*) avcHandle->AVCObject;
-
-    if (encvid->mvbits_array)
-    {
-        avcHandle->CBAVC_Free(avcHandle->userData, encvid->mvbits_array);
-        encvid->mvbits = NULL;
-    }
-
-    return ;
-}
-
-
-bool IntraDecisionABE(int *min_cost, uint8 *cur, int pitch, bool ave)
-{
-    int j;
-    uint8 *out;
-    int temp, SBE;
-    OsclFloat ABE;
-    bool intra = true;
-
-    SBE = 0;
-    /* top neighbor */
-    out = cur - pitch;
-    for (j = 0; j < 16; j++)
-    {
-        temp = out[j] - cur[j];
-        SBE += ((temp >= 0) ? temp : -temp);
-    }
-
-    /* left neighbor */
-    out = cur - 1;
-    out -= pitch;
-    cur -= pitch;
-    for (j = 0; j < 16; j++)
-    {
-        temp = *(out += pitch) - *(cur += pitch);
-        SBE += ((temp >= 0) ? temp : -temp);
-    }
-
-    /* compare mincost/384 and SBE/64 */
-    ABE = SBE / 32.0; //ABE = SBE/64.0; //
-    if (ABE >= *min_cost / 256.0) //if( ABE*0.8 >= min_cost/384.0) //
-    {
-        intra = false; // no possibility of intra, just use inter
-    }
-    else
-    {
-        if (ave == true)
-        {
-            *min_cost = (*min_cost + (int)(SBE * 8)) >> 1; // possibility of intra, averaging the cost
-        }
-        else
-        {
-            *min_cost = (int)(SBE * 8);
-        }
-    }
-
-    return intra;
-}
-
-/******* main function for macroblock prediction for the entire frame ***/
-/* if turns out to be IDR frame, set video->nal_unit_type to AVC_NALTYPE_IDR */
-void AVCMotionEstimation(AVCEncObject *encvid)
-{
-    AVCCommonObj *video = encvid->common;
-    int slice_type = video->slice_type;
-    AVCFrameIO *currInput = encvid->currInput;
-    AVCPictureData *refPic = video->RefPicList0[0];
-    int i, j, k;
-    int mbwidth = video->PicWidthInMbs;
-    int mbheight = video->PicHeightInMbs;
-    int totalMB = video->PicSizeInMbs;
-    int pitch = currInput->pitch;
-    AVCMacroblock *currMB, *mblock = video->mblock;
-    AVCMV *mot_mb_16x16, *mot16x16 = encvid->mot16x16;
-    // AVCMV *mot_mb_16x8, *mot_mb_8x16, *mot_mb_8x8, etc;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    uint8 *intraSearch = encvid->intraSearch;
-    uint FS_en = encvid->fullsearch_enable;
-
-    int NumIntraSearch, start_i, numLoop, incr_i;
-    int mbnum, offset;
-    uint8 *cur, *best_cand[5];
-    int totalSAD = 0;   /* average SAD for rate control */
-    int type_pred;
-    int abe_cost;
-
-#ifdef HTFM
-    /***** HYPOTHESIS TESTING ********/  /* 2/28/01 */
-    int collect = 0;
-    HTFM_Stat htfm_stat;
-    double newvar[16];
-    double exp_lamda[15];
-    /*********************************/
-#endif
-    int hp_guess = 0;
-    uint32 mv_uint32;
-
-    offset = 0;
-
-    if (slice_type == AVC_I_SLICE)
-    {
-        /* cannot do I16 prediction here because it needs full decoding. */
-        for (i = 0; i < totalMB; i++)
-        {
-            encvid->min_cost[i] = 0x7FFFFFFF;  /* max value for int */
-        }
-
-        memset(intraSearch, 1, sizeof(uint8)*totalMB);
-
-        encvid->firstIntraRefreshMBIndx = 0; /* reset this */
-
-        return ;
-    }
-    else   // P_SLICE
-    {
-        for (i = 0; i < totalMB; i++)
-        {
-            mblock[i].mb_intra = 0;
-        }
-        memset(intraSearch, 1, sizeof(uint8)*totalMB);
-    }
-
-    if (refPic->padded == 0)
-    {
-        AVCPaddingEdge(refPic);
-        refPic->padded = 1;
-    }
-    /* Random INTRA update */
-    if (rateCtrl->intraMBRate)
-    {
-        AVCRasterIntraUpdate(encvid, mblock, totalMB, rateCtrl->intraMBRate);
-    }
-
-    encvid->sad_extra_info = NULL;
-#ifdef HTFM
-    /***** HYPOTHESIS TESTING ********/
-    InitHTFM(video, &htfm_stat, newvar, &collect);
-    /*********************************/
-#endif
-
-    if ((rateCtrl->scdEnable == 1)
-            && ((rateCtrl->frame_rate < 5.0) || (video->sliceHdr->frame_num > MIN_GOP)))
-        /* do not try to detect a new scene if low frame rate and too close to previous I-frame */
-    {
-        incr_i = 2;
-        numLoop = 2;
-        start_i = 1;
-        type_pred = 0; /* for initial candidate selection */
-    }
-    else
-    {
-        incr_i = 1;
-        numLoop = 1;
-        start_i = 0;
-        type_pred = 2;
-    }
-
-    /* First pass, loop thru half the macroblock */
-    /* determine scene change */
-    /* Second pass, for the rest of macroblocks */
-    NumIntraSearch = 0; // to be intra searched in the encoding loop.
-    while (numLoop--)
-    {
-        for (j = 0; j < mbheight; j++)
-        {
-            if (incr_i > 1)
-                start_i = (start_i == 0 ? 1 : 0) ; /* toggle 0 and 1 */
-
-            offset = pitch * (j << 4) + (start_i << 4);
-
-            mbnum = j * mbwidth + start_i;
-
-            for (i = start_i; i < mbwidth; i += incr_i)
-            {
-                video->mbNum = mbnum;
-                video->currMB = currMB = mblock + mbnum;
-                mot_mb_16x16 = mot16x16 + mbnum;
-
-                cur = currInput->YCbCr[0] + offset;
-
-                if (currMB->mb_intra == 0) /* for INTER mode */
-                {
-#if defined(HTFM)
-                    HTFMPrepareCurMB_AVC(encvid, &htfm_stat, cur, pitch);
-#else
-                    AVCPrepareCurMB(encvid, cur, pitch);
-#endif
-                    /************************************************************/
-                    /******** full-pel 1MV search **********************/
-
-                    AVCMBMotionSearch(encvid, cur, best_cand, i << 4, j << 4, type_pred,
-                                      FS_en, &hp_guess);
-
-                    abe_cost = encvid->min_cost[mbnum] = mot_mb_16x16->sad;
-
-                    /* set mbMode and MVs */
-                    currMB->mbMode = AVC_P16;
-                    currMB->MBPartPredMode[0][0] = AVC_Pred_L0;
-                    mv_uint32 = ((mot_mb_16x16->y) << 16) | ((mot_mb_16x16->x) & 0xffff);
-                    for (k = 0; k < 32; k += 2)
-                    {
-                        currMB->mvL0[k>>1] = mv_uint32;
-                    }
-
-                    /* make a decision whether it should be tested for intra or not */
-                    if (i != mbwidth - 1 && j != mbheight - 1 && i != 0 && j != 0)
-                    {
-                        if (false == IntraDecisionABE(&abe_cost, cur, pitch, true))
-                        {
-                            intraSearch[mbnum] = 0;
-                        }
-                        else
-                        {
-                            NumIntraSearch++;
-                            rateCtrl->MADofMB[mbnum] = abe_cost;
-                        }
-                    }
-                    else // boundary MBs, always do intra search
-                    {
-                        NumIntraSearch++;
-                    }
-
-                    totalSAD += (int) rateCtrl->MADofMB[mbnum];//mot_mb_16x16->sad;
-                }
-                else    /* INTRA update, use for prediction */
-                {
-                    mot_mb_16x16[0].x = mot_mb_16x16[0].y = 0;
-
-                    /* reset all other MVs to zero */
-                    /* mot_mb_16x8, mot_mb_8x16, mot_mb_8x8, etc. */
-                    abe_cost = encvid->min_cost[mbnum] = 0x7FFFFFFF;  /* max value for int */
-
-                    if (i != mbwidth - 1 && j != mbheight - 1 && i != 0 && j != 0)
-                    {
-                        IntraDecisionABE(&abe_cost, cur, pitch, false);
-
-                        rateCtrl->MADofMB[mbnum] = abe_cost;
-                        totalSAD += abe_cost;
-                    }
-
-                    NumIntraSearch++ ;
-                    /* cannot do I16 prediction here because it needs full decoding. */
-                    // intraSearch[mbnum] = 1;
-
-                }
-
-                mbnum += incr_i;
-                offset += (incr_i << 4);
-
-            } /* for i */
-        } /* for j */
-
-        /* since we cannot do intra/inter decision here, the SCD has to be
-        based on other criteria such as motion vectors coherency or the SAD */
-        if (incr_i > 1 && numLoop) /* scene change on and first loop */
-        {
-            //if(NumIntraSearch > ((totalMB>>3)<<1) + (totalMB>>3)) /* 75% of 50%MBs */
-            if (NumIntraSearch*99 > (48*totalMB)) /* 20% of 50%MBs */
-                /* need to do more investigation about this threshold since the NumIntraSearch
-                only show potential intra MBs, not the actual one */
-            {
-                /* we can choose to just encode I_SLICE without IDR */
-                //video->nal_unit_type = AVC_NALTYPE_IDR;
-                video->nal_unit_type = AVC_NALTYPE_SLICE;
-                video->sliceHdr->slice_type = AVC_I_ALL_SLICE;
-                video->slice_type = AVC_I_SLICE;
-                memset(intraSearch, 1, sizeof(uint8)*totalMB);
-                i = totalMB;
-                while (i--)
-                {
-                    mblock[i].mb_intra = 1;
-                    encvid->min_cost[i] = 0x7FFFFFFF;  /* max value for int */
-                }
-
-                rateCtrl->totalSAD = totalSAD * 2;  /* SAD */
-
-                return ;
-            }
-        }
-        /******** no scene change, continue motion search **********************/
-        start_i = 0;
-        type_pred++; /* second pass */
-    }
-
-    rateCtrl->totalSAD = totalSAD;  /* SAD */
-
-#ifdef HTFM
-    /***** HYPOTHESIS TESTING ********/
-    if (collect)
-    {
-        collect = 0;
-        UpdateHTFM(encvid, newvar, exp_lamda, &htfm_stat);
-    }
-    /*********************************/
-#endif
-
-    return ;
-}
-
-/*=====================================================================
-    Function:   PaddingEdge
-    Date:       09/16/2000
-    Purpose:    Pad edge of a Vop
-=====================================================================*/
-
-void  AVCPaddingEdge(AVCPictureData *refPic)
-{
-    uint8 *src, *dst;
-    int i;
-    int pitch, width, height;
-    uint32 temp1, temp2;
-
-    width = refPic->width;
-    height = refPic->height;
-    pitch = refPic->pitch;
-
-    /* pad top */
-    src = refPic->Sl;
-
-    temp1 = *src; /* top-left corner */
-    temp2 = src[width-1]; /* top-right corner */
-    temp1 |= (temp1 << 8);
-    temp1 |= (temp1 << 16);
-    temp2 |= (temp2 << 8);
-    temp2 |= (temp2 << 16);
-
-    dst = src - (pitch << 4);
-
-    *((uint32*)(dst - 16)) = temp1;
-    *((uint32*)(dst - 12)) = temp1;
-    *((uint32*)(dst - 8)) = temp1;
-    *((uint32*)(dst - 4)) = temp1;
-
-    memcpy(dst, src, width);
-
-    *((uint32*)(dst += width)) = temp2;
-    *((uint32*)(dst + 4)) = temp2;
-    *((uint32*)(dst + 8)) = temp2;
-    *((uint32*)(dst + 12)) = temp2;
-
-    dst = dst - width - 16;
-
-    i = 15;
-    while (i--)
-    {
-        memcpy(dst + pitch, dst, pitch);
-        dst += pitch;
-    }
-
-    /* pad sides */
-    dst += (pitch + 16);
-    src = dst;
-    i = height;
-    while (i--)
-    {
-        temp1 = *src;
-        temp2 = src[width-1];
-        temp1 |= (temp1 << 8);
-        temp1 |= (temp1 << 16);
-        temp2 |= (temp2 << 8);
-        temp2 |= (temp2 << 16);
-
-        *((uint32*)(dst - 16)) = temp1;
-        *((uint32*)(dst - 12)) = temp1;
-        *((uint32*)(dst - 8)) = temp1;
-        *((uint32*)(dst - 4)) = temp1;
-
-        *((uint32*)(dst += width)) = temp2;
-        *((uint32*)(dst + 4)) = temp2;
-        *((uint32*)(dst + 8)) = temp2;
-        *((uint32*)(dst + 12)) = temp2;
-
-        src += pitch;
-        dst = src;
-    }
-
-    /* pad bottom */
-    dst -= 16;
-    i = 16;
-    while (i--)
-    {
-        memcpy(dst, dst - pitch, pitch);
-        dst += pitch;
-    }
-
-
-    return ;
-}
-
-/*===========================================================================
-    Function:   AVCRasterIntraUpdate
-    Date:       2/26/01
-    Purpose:    To raster-scan assign INTRA-update .
-                N macroblocks are updated (also was programmable).
-===========================================================================*/
-void AVCRasterIntraUpdate(AVCEncObject *encvid, AVCMacroblock *mblock, int totalMB, int numRefresh)
-{
-    int indx, i;
-
-    indx = encvid->firstIntraRefreshMBIndx;
-    for (i = 0; i < numRefresh && indx < totalMB; i++)
-    {
-        (mblock + indx)->mb_intra = 1;
-        encvid->intraSearch[indx++] = 1;
-    }
-
-    /* if read the end of frame, reset and loop around */
-    if (indx >= totalMB - 1)
-    {
-        indx = 0;
-        while (i < numRefresh && indx < totalMB)
-        {
-            (mblock + indx)->mb_intra = 1;
-            encvid->intraSearch[indx++] = 1;
-            i++;
-        }
-    }
-
-    encvid->firstIntraRefreshMBIndx = indx; /* update with a new value */
-
-    return ;
-}
-
-
-#ifdef HTFM
-void InitHTFM(VideoEncData *encvid, HTFM_Stat *htfm_stat, double *newvar, int *collect)
-{
-    AVCCommonObj *video = encvid->common;
-    int i;
-    int lx = video->currPic->width; // padding
-    int lx2 = lx << 1;
-    int lx3 = lx2 + lx;
-    int rx = video->currPic->pitch;
-    int rx2 = rx << 1;
-    int rx3 = rx2 + rx;
-
-    int *offset, *offset2;
-
-    /* 4/11/01, collect data every 30 frames, doesn't have to be base layer */
-    if (((int)video->sliceHdr->frame_num) % 30 == 1)
-    {
-
-        *collect = 1;
-
-        htfm_stat->countbreak = 0;
-        htfm_stat->abs_dif_mad_avg = 0;
-
-        for (i = 0; i < 16; i++)
-        {
-            newvar[i] = 0.0;
-        }
-//      encvid->functionPointer->SAD_MB_PADDING = &SAD_MB_PADDING_HTFM_Collect;
-        encvid->functionPointer->SAD_Macroblock = &SAD_MB_HTFM_Collect;
-        encvid->functionPointer->SAD_MB_HalfPel[0] = NULL;
-        encvid->functionPointer->SAD_MB_HalfPel[1] = &SAD_MB_HP_HTFM_Collectxh;
-        encvid->functionPointer->SAD_MB_HalfPel[2] = &SAD_MB_HP_HTFM_Collectyh;
-        encvid->functionPointer->SAD_MB_HalfPel[3] = &SAD_MB_HP_HTFM_Collectxhyh;
-        encvid->sad_extra_info = (void*)(htfm_stat);
-        offset = htfm_stat->offsetArray;
-        offset2 = htfm_stat->offsetRef;
-    }
-    else
-    {
-//      encvid->functionPointer->SAD_MB_PADDING = &SAD_MB_PADDING_HTFM;
-        encvid->functionPointer->SAD_Macroblock = &SAD_MB_HTFM;
-        encvid->functionPointer->SAD_MB_HalfPel[0] = NULL;
-        encvid->functionPointer->SAD_MB_HalfPel[1] = &SAD_MB_HP_HTFMxh;
-        encvid->functionPointer->SAD_MB_HalfPel[2] = &SAD_MB_HP_HTFMyh;
-        encvid->functionPointer->SAD_MB_HalfPel[3] = &SAD_MB_HP_HTFMxhyh;
-        encvid->sad_extra_info = (void*)(encvid->nrmlz_th);
-        offset = encvid->nrmlz_th + 16;
-        offset2 = encvid->nrmlz_th + 32;
-    }
-
-    offset[0] = 0;
-    offset[1] = lx2 + 2;
-    offset[2] = 2;
-    offset[3] = lx2;
-    offset[4] = lx + 1;
-    offset[5] = lx3 + 3;
-    offset[6] = lx + 3;
-    offset[7] = lx3 + 1;
-    offset[8] = lx;
-    offset[9] = lx3 + 2;
-    offset[10] = lx3 ;
-    offset[11] = lx + 2 ;
-    offset[12] = 1;
-    offset[13] = lx2 + 3;
-    offset[14] = lx2 + 1;
-    offset[15] = 3;
-
-    offset2[0] = 0;
-    offset2[1] = rx2 + 2;
-    offset2[2] = 2;
-    offset2[3] = rx2;
-    offset2[4] = rx + 1;
-    offset2[5] = rx3 + 3;
-    offset2[6] = rx + 3;
-    offset2[7] = rx3 + 1;
-    offset2[8] = rx;
-    offset2[9] = rx3 + 2;
-    offset2[10] = rx3 ;
-    offset2[11] = rx + 2 ;
-    offset2[12] = 1;
-    offset2[13] = rx2 + 3;
-    offset2[14] = rx2 + 1;
-    offset2[15] = 3;
-
-    return ;
-}
-
-void UpdateHTFM(AVCEncObject *encvid, double *newvar, double *exp_lamda, HTFM_Stat *htfm_stat)
-{
-    if (htfm_stat->countbreak == 0)
-        htfm_stat->countbreak = 1;
-
-    newvar[0] = (double)(htfm_stat->abs_dif_mad_avg) / (htfm_stat->countbreak * 16.);
-
-    if (newvar[0] < 0.001)
-    {
-        newvar[0] = 0.001; /* to prevent floating overflow */
-    }
-    exp_lamda[0] =  1 / (newvar[0] * 1.4142136);
-    exp_lamda[1] = exp_lamda[0] * 1.5825;
-    exp_lamda[2] = exp_lamda[0] * 2.1750;
-    exp_lamda[3] = exp_lamda[0] * 3.5065;
-    exp_lamda[4] = exp_lamda[0] * 3.1436;
-    exp_lamda[5] = exp_lamda[0] * 3.5315;
-    exp_lamda[6] = exp_lamda[0] * 3.7449;
-    exp_lamda[7] = exp_lamda[0] * 4.5854;
-    exp_lamda[8] = exp_lamda[0] * 4.6191;
-    exp_lamda[9] = exp_lamda[0] * 5.4041;
-    exp_lamda[10] = exp_lamda[0] * 6.5974;
-    exp_lamda[11] = exp_lamda[0] * 10.5341;
-    exp_lamda[12] = exp_lamda[0] * 10.0719;
-    exp_lamda[13] = exp_lamda[0] * 12.0516;
-    exp_lamda[14] = exp_lamda[0] * 15.4552;
-
-    CalcThreshold(HTFM_Pf, exp_lamda, encvid->nrmlz_th);
-    return ;
-}
-
-
-void CalcThreshold(double pf, double exp_lamda[], int nrmlz_th[])
-{
-    int i;
-    double temp[15];
-    //  printf("\nLamda: ");
-
-    /* parametric PREMODELling */
-    for (i = 0; i < 15; i++)
-    {
-        //    printf("%g ",exp_lamda[i]);
-        if (pf < 0.5)
-            temp[i] = 1 / exp_lamda[i] * M4VENC_LOG(2 * pf);
-        else
-            temp[i] = -1 / exp_lamda[i] * M4VENC_LOG(2 * (1 - pf));
-    }
-
-    nrmlz_th[15] = 0;
-    for (i = 0; i < 15; i++)        /* scale upto no.pixels */
-        nrmlz_th[i] = (int)(temp[i] * ((i + 1) << 4) + 0.5);
-
-    return ;
-}
-
-void    HTFMPrepareCurMB_AVC(AVCEncObject *encvid, HTFM_Stat *htfm_stat, uint8 *cur, int pitch)
-{
-    AVCCommonObj *video = encvid->common;
-    uint32 *htfmMB = (uint32*)(encvid->currYMB);
-    uint8 *ptr, byte;
-    int *offset;
-    int i;
-    uint32 word;
-
-    if (((int)video->sliceHdr->frame_num) % 30 == 1)
-    {
-        offset = htfm_stat->offsetArray;
-    }
-    else
-    {
-        offset = encvid->nrmlz_th + 16;
-    }
-
-    for (i = 0; i < 16; i++)
-    {
-        ptr = cur + offset[i];
-        word = ptr[0];
-        byte = ptr[4];
-        word |= (byte << 8);
-        byte = ptr[8];
-        word |= (byte << 16);
-        byte = ptr[12];
-        word |= (byte << 24);
-        *htfmMB++ = word;
-
-        word = *(ptr += (pitch << 2));
-        byte = ptr[4];
-        word |= (byte << 8);
-        byte = ptr[8];
-        word |= (byte << 16);
-        byte = ptr[12];
-        word |= (byte << 24);
-        *htfmMB++ = word;
-
-        word = *(ptr += (pitch << 2));
-        byte = ptr[4];
-        word |= (byte << 8);
-        byte = ptr[8];
-        word |= (byte << 16);
-        byte = ptr[12];
-        word |= (byte << 24);
-        *htfmMB++ = word;
-
-        word = *(ptr += (pitch << 2));
-        byte = ptr[4];
-        word |= (byte << 8);
-        byte = ptr[8];
-        word |= (byte << 16);
-        byte = ptr[12];
-        word |= (byte << 24);
-        *htfmMB++ = word;
-    }
-
-    return ;
-}
-
-
-#endif // HTFM
-
-void    AVCPrepareCurMB(AVCEncObject *encvid, uint8 *cur, int pitch)
-{
-    void* tmp = (void*)(encvid->currYMB);
-    uint32 *currYMB = (uint32*) tmp;
-    int i;
-
-    cur -= pitch;
-
-    for (i = 0; i < 16; i++)
-    {
-        *currYMB++ = *((uint32*)(cur += pitch));
-        *currYMB++ = *((uint32*)(cur + 4));
-        *currYMB++ = *((uint32*)(cur + 8));
-        *currYMB++ = *((uint32*)(cur + 12));
-    }
-
-    return ;
-}
-
-#ifdef FIXED_INTERPRED_MODE
-
-/* due to the complexity of the predicted motion vector, we may not decide to skip
-a macroblock here just yet. */
-/* We will find the best motion vector and the best intra prediction mode for each block. */
-/* output are
-    currMB->NumMbPart,  currMB->MbPartWidth, currMB->MbPartHeight,
-    currMB->NumSubMbPart[], currMB->SubMbPartWidth[], currMB->SubMbPartHeight,
-    currMB->MBPartPredMode[][] (L0 or L1 or BiPred)
-    currMB->RefIdx[], currMB->ref_idx_L0[],
-    currMB->mvL0[], currMB->mvL1[]
-    */
-
-AVCEnc_Status AVCMBMotionSearch(AVCEncObject *encvid, AVCMacroblock *currMB, int mbNum,
-                                int num_pass)
-{
-    AVCCommonObj *video = encvid->common;
-    int mbPartIdx, subMbPartIdx;
-    int16 *mv;
-    int i;
-    int SubMbPartHeight, SubMbPartWidth, NumSubMbPart;
-
-    /* assign value to currMB->MBPartPredMode[][x],subMbMode[],NumSubMbPart[],SubMbPartWidth[],SubMbPartHeight[] */
-
-    currMB->mbMode = FIXED_INTERPRED_MODE;
-    currMB->mb_intra = 0;
-
-    if (currMB->mbMode == AVC_P16)
-    {
-        currMB->NumMbPart = 1;
-        currMB->MbPartWidth = 16;
-        currMB->MbPartHeight = 16;
-        currMB->SubMbPartHeight[0] = 16;
-        currMB->SubMbPartWidth[0] = 16;
-        currMB->NumSubMbPart[0] =  1;
-    }
-    else if (currMB->mbMode == AVC_P16x8)
-    {
-        currMB->NumMbPart = 2;
-        currMB->MbPartWidth = 16;
-        currMB->MbPartHeight = 8;
-        for (i = 0; i < 2; i++)
-        {
-            currMB->SubMbPartWidth[i] = 16;
-            currMB->SubMbPartHeight[i] = 8;
-            currMB->NumSubMbPart[i] = 1;
-        }
-    }
-    else if (currMB->mbMode == AVC_P8x16)
-    {
-        currMB->NumMbPart = 2;
-        currMB->MbPartWidth = 8;
-        currMB->MbPartHeight = 16;
-        for (i = 0; i < 2; i++)
-        {
-            currMB->SubMbPartWidth[i] = 8;
-            currMB->SubMbPartHeight[i] = 16;
-            currMB->NumSubMbPart[i] = 1;
-        }
-    }
-    else if (currMB->mbMode == AVC_P8 || currMB->mbMode == AVC_P8ref0)
-    {
-        currMB->NumMbPart = 4;
-        currMB->MbPartWidth = 8;
-        currMB->MbPartHeight = 8;
-        if (FIXED_SUBMB_MODE == AVC_8x8)
-        {
-            SubMbPartHeight = 8;
-            SubMbPartWidth = 8;
-            NumSubMbPart = 1;
-        }
-        else if (FIXED_SUBMB_MODE == AVC_8x4)
-        {
-            SubMbPartHeight = 4;
-            SubMbPartWidth = 8;
-            NumSubMbPart = 2;
-        }
-        else if (FIXED_SUBMB_MODE == AVC_4x8)
-        {
-            SubMbPartHeight = 8;
-            SubMbPartWidth = 4;
-            NumSubMbPart = 2;
-        }
-        else if (FIXED_SUBMB_MODE == AVC_4x4)
-        {
-            SubMbPartHeight = 4;
-            SubMbPartWidth = 4;
-            NumSubMbPart = 4;
-        }
-
-        for (i = 0; i < 4; i++)
-        {
-            currMB->subMbMode[i] = FIXED_SUBMB_MODE;
-            currMB->SubMbPartHeight[i] = SubMbPartHeight;
-            currMB->SubMbPartWidth[i] = SubMbPartWidth;
-            currMB->NumSubMbPart[i] = NumSubMbPart;
-        }
-    }
-    else /* it's probably intra mode */
-    {
-        return AVCENC_SUCCESS;
-    }
-
-    for (mbPartIdx = 0; mbPartIdx < 4; mbPartIdx++)
-    {
-        currMB->MBPartPredMode[mbPartIdx][0]  = AVC_Pred_L0;
-        currMB->ref_idx_L0[mbPartIdx] = FIXED_REF_IDX;
-        currMB->RefIdx[mbPartIdx] = video->RefPicList0[FIXED_REF_IDX]->RefIdx;
-
-        for (subMbPartIdx = 0; subMbPartIdx < 4; subMbPartIdx++)
-        {
-            mv = (int16*)(currMB->mvL0 + (mbPartIdx << 2) + subMbPartIdx);
-
-            *mv++ = FIXED_MVX;
-            *mv = FIXED_MVY;
-        }
-    }
-
-    encvid->min_cost = 0;
-
-    return AVCENC_SUCCESS;
-}
-
-#else /* perform the search */
-
-/* This option #1 search is very similar to PV's MPEG4 motion search algorithm.
-  The search is done in hierarchical manner from 16x16 MB down to smaller and smaller
-  partition. At each level, a decision can be made to stop the search if the expected
-  prediction gain is not worth the computation. The decision can also be made at the finest
-  level for more fullsearch-like behavior with the price of heavier computation. */
-void AVCMBMotionSearch(AVCEncObject *encvid, uint8 *cur, uint8 *best_cand[],
-                       int i0, int j0, int type_pred, int FS_en, int *hp_guess)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCPictureData *currPic = video->currPic;
-    AVCSeqParamSet *currSPS = video->currSeqParams;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    AVCMacroblock *currMB = video->currMB;
-    uint8 *ref, *cand, *ncand;
-    void *extra_info = encvid->sad_extra_info;
-    int mbnum = video->mbNum;
-    int width = currPic->width; /* 6/12/01, must be multiple of 16 */
-    int height = currPic->height;
-    AVCMV *mot16x16 = encvid->mot16x16;
-    int (*SAD_Macroblock)(uint8*, uint8*, int, void*) = encvid->functionPointer->SAD_Macroblock;
-
-    int range = rateCtrl->mvRange;
-
-    int lx = currPic->pitch; /*  padding */
-    int i, j, imin, jmin, ilow, ihigh, jlow, jhigh;
-    int d, dmin, dn[9];
-    int k;
-    int mvx[5], mvy[5];
-    int num_can, center_again;
-    int last_loc, new_loc = 0;
-    int step, max_step = range >> 1;
-    int next;
-
-    int cmvx, cmvy; /* estimated predicted MV */
-    int lev_idx;
-    int lambda_motion = encvid->lambda_motion;
-    uint8 *mvbits = encvid->mvbits;
-    int mvshift = 2;
-    int mvcost;
-
-    int min_sad = 65535;
-
-    ref = video->RefPicList0[DEFAULT_REF_IDX]->Sl; /* origin of actual frame */
-
-    /* have to initialize these params, necessary for interprediction part */
-    currMB->NumMbPart = 1;
-    currMB->SubMbPartHeight[0] = 16;
-    currMB->SubMbPartWidth[0] = 16;
-    currMB->NumSubMbPart[0] = 1;
-    currMB->ref_idx_L0[0] = currMB->ref_idx_L0[1] =
-                                currMB->ref_idx_L0[2] = currMB->ref_idx_L0[3] = DEFAULT_REF_IDX;
-    currMB->ref_idx_L1[0] = currMB->ref_idx_L1[1] =
-                                currMB->ref_idx_L1[2] = currMB->ref_idx_L1[3] = DEFAULT_REF_IDX;
-    currMB->RefIdx[0] = currMB->RefIdx[1] =
-                            currMB->RefIdx[2] = currMB->RefIdx[3] = video->RefPicList0[DEFAULT_REF_IDX]->RefIdx;
-
-    cur = encvid->currYMB; /* use smaller memory space for current MB */
-
-    /*  find limit of the search (adjusting search range)*/
-    lev_idx = mapLev2Idx[currSPS->level_idc];
-
-    /* we can make this part dynamic based on previous statistics */
-    ilow = i0 - range;
-    if (i0 - ilow > 2047) /* clip to conform with the standard */
-    {
-        ilow = i0 - 2047;
-    }
-    if (ilow < -13)  // change it from -15 to -13 because of 6-tap filter needs extra 2 lines.
-    {
-        ilow = -13;
-    }
-
-    ihigh = i0 + range - 1;
-    if (ihigh - i0 > 2047) /* clip to conform with the standard */
-    {
-        ihigh = i0 + 2047;
-    }
-    if (ihigh > width - 3)
-    {
-        ihigh = width - 3;  // change from width-1 to width-3 for the same reason as above
-    }
-
-    jlow = j0 - range;
-    if (j0 - jlow > MaxVmvR[lev_idx] - 1) /* clip to conform with the standard */
-    {
-        jlow = j0 - MaxVmvR[lev_idx] + 1;
-    }
-    if (jlow < -13)     // same reason as above
-    {
-        jlow = -13;
-    }
-
-    jhigh = j0 + range - 1;
-    if (jhigh - j0 > MaxVmvR[lev_idx] - 1) /* clip to conform with the standard */
-    {
-        jhigh = j0 + MaxVmvR[lev_idx] - 1;
-    }
-    if (jhigh > height - 3) // same reason as above
-    {
-        jhigh = height - 3;
-    }
-
-    /* find initial motion vector & predicted MV*/
-    AVCCandidateSelection(mvx, mvy, &num_can, i0 >> 4, j0 >> 4, encvid, type_pred, &cmvx, &cmvy);
-
-    imin = i0;
-    jmin = j0; /* needed for fullsearch */
-    ncand = ref + i0 + j0 * lx;
-
-    /* for first row of MB, fullsearch can be used */
-    if (FS_en)
-    {
-        *hp_guess = 0; /* no guess for fast half-pel */
-
-        dmin =  AVCFullSearch(encvid, ref, cur, &imin, &jmin, ilow, ihigh, jlow, jhigh, cmvx, cmvy);
-
-        ncand = ref + imin + jmin * lx;
-    }
-    else
-    {   /*       fullsearch the top row to only upto (0,3) MB */
-        /*       upto 30% complexity saving with the same complexity */
-        if (video->PrevRefFrameNum == 0 && j0 == 0 && i0 <= 64 && type_pred != 1)
-        {
-            *hp_guess = 0; /* no guess for fast half-pel */
-            dmin =  AVCFullSearch(encvid, ref, cur, &imin, &jmin, ilow, ihigh, jlow, jhigh, cmvx, cmvy);
-            ncand = ref + imin + jmin * lx;
-        }
-        else
-        {
-            /************** initialize candidate **************************/
-
-            dmin = 65535;
-
-            /* check if all are equal */
-            if (num_can == ALL_CAND_EQUAL)
-            {
-                i = i0 + mvx[0];
-                j = j0 + mvy[0];
-
-                if (i >= ilow && i <= ihigh && j >= jlow && j <= jhigh)
-                {
-                    cand = ref + i + j * lx;
-
-                    d = (*SAD_Macroblock)(cand, cur, (dmin << 16) | lx, extra_info);
-                    mvcost = MV_COST(lambda_motion, mvshift, i - i0, j - j0, cmvx, cmvy);
-                    d +=  mvcost;
-
-                    if (d < dmin)
-                    {
-                        dmin = d;
-                        imin = i;
-                        jmin = j;
-                        ncand = cand;
-                        min_sad = d - mvcost; // for rate control
-                    }
-                }
-            }
-            else
-            {
-                /************** evaluate unique candidates **********************/
-                for (k = 0; k < num_can; k++)
-                {
-                    i = i0 + mvx[k];
-                    j = j0 + mvy[k];
-
-                    if (i >= ilow && i <= ihigh && j >= jlow && j <= jhigh)
-                    {
-                        cand = ref + i + j * lx;
-                        d = (*SAD_Macroblock)(cand, cur, (dmin << 16) | lx, extra_info);
-                        mvcost = MV_COST(lambda_motion, mvshift, i - i0, j - j0, cmvx, cmvy);
-                        d +=  mvcost;
-
-                        if (d < dmin)
-                        {
-                            dmin = d;
-                            imin = i;
-                            jmin = j;
-                            ncand = cand;
-                            min_sad = d - mvcost; // for rate control
-                        }
-                    }
-                }
-            }
-
-            /******************* local refinement ***************************/
-            center_again = 0;
-            last_loc = new_loc = 0;
-            //          ncand = ref + jmin*lx + imin;  /* center of the search */
-            step = 0;
-            dn[0] = dmin;
-            while (!center_again && step <= max_step)
-            {
-
-                AVCMoveNeighborSAD(dn, last_loc);
-
-                center_again = 1;
-                i = imin;
-                j = jmin - 1;
-                cand = ref + i + j * lx;
-
-                /*  starting from [0,-1] */
-                /* spiral check one step at a time*/
-                for (k = 2; k <= 8; k += 2)
-                {
-                    if (!tab_exclude[last_loc][k]) /* exclude last step computation */
-                    {       /* not already computed */
-                        if (i >= ilow && i <= ihigh && j >= jlow && j <= jhigh)
-                        {
-                            d = (*SAD_Macroblock)(cand, cur, (dmin << 16) | lx, extra_info);
-                            mvcost = MV_COST(lambda_motion, mvshift, i - i0, j - j0, cmvx, cmvy);
-                            d += mvcost;
-
-                            dn[k] = d; /* keep it for half pel use */
-
-                            if (d < dmin)
-                            {
-                                ncand = cand;
-                                dmin = d;
-                                imin = i;
-                                jmin = j;
-                                center_again = 0;
-                                new_loc = k;
-                                min_sad = d - mvcost; // for rate control
-                            }
-                        }
-                    }
-                    if (k == 8)  /* end side search*/
-                    {
-                        if (!center_again)
-                        {
-                            k = -1; /* start diagonal search */
-                            cand -= lx;
-                            j--;
-                        }
-                    }
-                    else
-                    {
-                        next = refine_next[k][0];
-                        i += next;
-                        cand += next;
-                        next = refine_next[k][1];
-                        j += next;
-                        cand += lx * next;
-                    }
-                }
-                last_loc = new_loc;
-                step ++;
-            }
-            if (!center_again)
-                AVCMoveNeighborSAD(dn, last_loc);
-
-            *hp_guess = AVCFindMin(dn);
-
-            encvid->rateCtrl->MADofMB[mbnum] = min_sad / 256.0;
-        }
-    }
-
-    mot16x16[mbnum].sad = dmin;
-    mot16x16[mbnum].x = (imin - i0) << 2;
-    mot16x16[mbnum].y = (jmin - j0) << 2;
-    best_cand[0] = ncand;
-
-    if (rateCtrl->subPelEnable) // always enable half-pel search
-    {
-        /* find half-pel resolution motion vector */
-        min_sad = AVCFindHalfPelMB(encvid, cur, mot16x16 + mbnum, best_cand[0], i0, j0, *hp_guess, cmvx, cmvy);
-
-        encvid->rateCtrl->MADofMB[mbnum] = min_sad / 256.0;
-
-
-        if (encvid->best_qpel_pos == -1)
-        {
-            ncand = encvid->hpel_cand[encvid->best_hpel_pos];
-        }
-        else
-        {
-            ncand = encvid->qpel_cand[encvid->best_qpel_pos];
-        }
-    }
-    else
-    {
-        encvid->rateCtrl->MADofMB[mbnum] = min_sad / 256.0;
-    }
-
-    /** do motion comp here for now */
-    ref = currPic->Sl + i0 + j0 * lx;
-    /* copy from the best result to current Picture */
-    for (j = 0; j < 16; j++)
-    {
-        for (i = 0; i < 16; i++)
-        {
-            *ref++ = *ncand++;
-        }
-        ref += (lx - 16);
-        ncand += 8;
-    }
-
-    return ;
-}
-
-#endif
-
-/*===============================================================================
-    Function:   AVCFullSearch
-    Date:       09/16/2000
-    Purpose:    Perform full-search motion estimation over the range of search
-                region in a spiral-outward manner.
-    Input/Output:   VideoEncData, current Vol, previou Vop, pointer to the left corner of
-                current VOP, current coord (also output), boundaries.
-===============================================================================*/
-int AVCFullSearch(AVCEncObject *encvid, uint8 *prev, uint8 *cur,
-                  int *imin, int *jmin, int ilow, int ihigh, int jlow, int jhigh,
-                  int cmvx, int cmvy)
-{
-    int range = encvid->rateCtrl->mvRange;
-    AVCPictureData *currPic = encvid->common->currPic;
-    uint8 *cand;
-    int i, j, k, l;
-    int d, dmin;
-    int i0 = *imin; /* current position */
-    int j0 = *jmin;
-    int (*SAD_Macroblock)(uint8*, uint8*, int, void*) = encvid->functionPointer->SAD_Macroblock;
-    void *extra_info = encvid->sad_extra_info;
-    int lx = currPic->pitch; /* with padding */
-
-    int offset = i0 + j0 * lx;
-
-    int lambda_motion = encvid->lambda_motion;
-    uint8 *mvbits = encvid->mvbits;
-    int mvshift = 2;
-    int mvcost;
-    int min_sad;
-
-    cand = prev + offset;
-
-    dmin  = (*SAD_Macroblock)(cand, cur, (65535 << 16) | lx, (void*)extra_info);
-    mvcost = MV_COST(lambda_motion, mvshift, 0, 0, cmvx, cmvy);
-    min_sad = dmin;
-    dmin += mvcost;
-
-    /* perform spiral search */
-    for (k = 1; k <= range; k++)
-    {
-
-        i = i0 - k;
-        j = j0 - k;
-
-        cand = prev + i + j * lx;
-
-        for (l = 0; l < 8*k; l++)
-        {
-            /* no need for boundary checking again */
-            if (i >= ilow && i <= ihigh && j >= jlow && j <= jhigh)
-            {
-                d = (*SAD_Macroblock)(cand, cur, (dmin << 16) | lx, (void*)extra_info);
-                mvcost = MV_COST(lambda_motion, mvshift, i - i0, j - j0, cmvx, cmvy);
-                d +=  mvcost;
-
-                if (d < dmin)
-                {
-                    dmin = d;
-                    *imin = i;
-                    *jmin = j;
-                    min_sad = d - mvcost;
-                }
-            }
-
-            if (l < (k << 1))
-            {
-                i++;
-                cand++;
-            }
-            else if (l < (k << 2))
-            {
-                j++;
-                cand += lx;
-            }
-            else if (l < ((k << 2) + (k << 1)))
-            {
-                i--;
-                cand--;
-            }
-            else
-            {
-                j--;
-                cand -= lx;
-            }
-        }
-    }
-
-    encvid->rateCtrl->MADofMB[encvid->common->mbNum] = (min_sad / 256.0); // for rate control
-
-    return dmin;
-}
-
-/*===============================================================================
-    Function:   AVCCandidateSelection
-    Date:       09/16/2000
-    Purpose:    Fill up the list of candidate using spatio-temporal correlation
-                among neighboring blocks.
-    Input/Output:   type_pred = 0: first pass, 1: second pass, or no SCD
-    Modified:   , 09/23/01, get rid of redundant candidates before passing back.
-                , 09/11/07, added return for modified predicted MV, this will be
-                    needed for both fast search and fullsearch.
-===============================================================================*/
-
-void AVCCandidateSelection(int *mvx, int *mvy, int *num_can, int imb, int jmb,
-                           AVCEncObject *encvid, int type_pred, int *cmvx, int *cmvy)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCMV *mot16x16 = encvid->mot16x16;
-    AVCMV *pmot;
-    int mbnum = video->mbNum;
-    int mbwidth = video->PicWidthInMbs;
-    int mbheight = video->PicHeightInMbs;
-    int i, j, same, num1;
-
-    /* this part is for predicted MV */
-    int pmvA_x = 0, pmvA_y = 0, pmvB_x = 0, pmvB_y = 0, pmvC_x = 0, pmvC_y = 0;
-    int availA = 0, availB = 0, availC = 0;
-
-    *num_can = 0;
-
-    if (video->PrevRefFrameNum != 0) // previous frame is an IDR frame
-    {
-        /* Spatio-Temporal Candidate (five candidates) */
-        if (type_pred == 0) /* first pass */
-        {
-            pmot = &mot16x16[mbnum]; /* same coordinate previous frame */
-            mvx[(*num_can)] = (pmot->x) >> 2;
-            mvy[(*num_can)++] = (pmot->y) >> 2;
-            if (imb >= (mbwidth >> 1) && imb > 0)  /*left neighbor previous frame */
-            {
-                pmot = &mot16x16[mbnum-1];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-            else if (imb + 1 < mbwidth)   /*right neighbor previous frame */
-            {
-                pmot = &mot16x16[mbnum+1];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-
-            if (jmb < mbheight - 1)  /*bottom neighbor previous frame */
-            {
-                pmot = &mot16x16[mbnum+mbwidth];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-            else if (jmb > 0)   /*upper neighbor previous frame */
-            {
-                pmot = &mot16x16[mbnum-mbwidth];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-
-            if (imb > 0 && jmb > 0)  /* upper-left neighbor current frame*/
-            {
-                pmot = &mot16x16[mbnum-mbwidth-1];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-            if (jmb > 0 && imb < mbheight - 1)  /* upper right neighbor current frame*/
-            {
-                pmot = &mot16x16[mbnum-mbwidth+1];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-        }
-        else    /* second pass */
-            /* original ST1 algorithm */
-        {
-            pmot = &mot16x16[mbnum]; /* same coordinate previous frame */
-            mvx[(*num_can)] = (pmot->x) >> 2;
-            mvy[(*num_can)++] = (pmot->y) >> 2;
-
-            if (imb > 0)  /*left neighbor current frame */
-            {
-                pmot = &mot16x16[mbnum-1];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-            if (jmb > 0)  /*upper neighbor current frame */
-            {
-                pmot = &mot16x16[mbnum-mbwidth];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-            if (imb < mbwidth - 1)  /*right neighbor previous frame */
-            {
-                pmot = &mot16x16[mbnum+1];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-            if (jmb < mbheight - 1)  /*bottom neighbor previous frame */
-            {
-                pmot = &mot16x16[mbnum+mbwidth];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-        }
-
-        /* get predicted MV */
-        if (imb > 0)    /* get MV from left (A) neighbor either on current or previous frame */
-        {
-            availA = 1;
-            pmot = &mot16x16[mbnum-1];
-            pmvA_x = pmot->x;
-            pmvA_y = pmot->y;
-        }
-
-        if (jmb > 0) /* get MV from top (B) neighbor either on current or previous frame */
-        {
-            availB = 1;
-            pmot = &mot16x16[mbnum-mbwidth];
-            pmvB_x = pmot->x;
-            pmvB_y = pmot->y;
-
-            availC = 1;
-
-            if (imb < mbwidth - 1) /* get MV from top-right (C) neighbor of current frame */
-            {
-                pmot = &mot16x16[mbnum-mbwidth+1];
-            }
-            else /* get MV from top-left (D) neighbor of current frame */
-            {
-                pmot = &mot16x16[mbnum-mbwidth-1];
-            }
-            pmvC_x = pmot->x;
-            pmvC_y = pmot->y;
-        }
-
-    }
-    else  /* only Spatial Candidate (four candidates)*/
-    {
-        if (type_pred == 0) /*first pass*/
-        {
-            if (imb > 1)  /* neighbor two blocks away to the left */
-            {
-                pmot = &mot16x16[mbnum-2];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-            if (imb > 0 && jmb > 0)  /* upper-left neighbor */
-            {
-                pmot = &mot16x16[mbnum-mbwidth-1];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-            if (jmb > 0 && imb < mbheight - 1)  /* upper right neighbor */
-            {
-                pmot = &mot16x16[mbnum-mbwidth+1];
-                mvx[(*num_can)] = (pmot->x) >> 2;
-                mvy[(*num_can)++] = (pmot->y) >> 2;
-            }
-
-            /* get predicted MV */
-            if (imb > 1)    /* get MV from 2nd left (A) neighbor either of current frame */
-            {
-                availA = 1;
-                pmot = &mot16x16[mbnum-2];
-                pmvA_x = pmot->x;
-                pmvA_y = pmot->y;
-            }
-
-            if (jmb > 0 && imb > 0) /* get MV from top-left (B) neighbor of current frame */
-            {
-                availB = 1;
-                pmot = &mot16x16[mbnum-mbwidth-1];
-                pmvB_x = pmot->x;
-                pmvB_y = pmot->y;
-            }
-
-            if (jmb > 0 && imb < mbwidth - 1)
-            {
-                availC = 1;
-                pmot = &mot16x16[mbnum-mbwidth+1];
-                pmvC_x = pmot->x;
-                pmvC_y = pmot->y;
-            }
-        }
-//#ifdef SCENE_CHANGE_DETECTION
-        /* second pass (ST2 algorithm)*/
-        else
-        {
-            if (type_pred == 1) /*  4/7/01 */
-            {
-                if (imb > 0)  /*left neighbor current frame */
-                {
-                    pmot = &mot16x16[mbnum-1];
-                    mvx[(*num_can)] = (pmot->x) >> 2;
-                    mvy[(*num_can)++] = (pmot->y) >> 2;
-                }
-                if (jmb > 0)  /*upper neighbor current frame */
-                {
-                    pmot = &mot16x16[mbnum-mbwidth];
-                    mvx[(*num_can)] = (pmot->x) >> 2;
-                    mvy[(*num_can)++] = (pmot->y) >> 2;
-                }
-                if (imb < mbwidth - 1)  /*right neighbor current frame */
-                {
-                    pmot = &mot16x16[mbnum+1];
-                    mvx[(*num_can)] = (pmot->x) >> 2;
-                    mvy[(*num_can)++] = (pmot->y) >> 2;
-                }
-                if (jmb < mbheight - 1)  /*bottom neighbor current frame */
-                {
-                    pmot = &mot16x16[mbnum+mbwidth];
-                    mvx[(*num_can)] = (pmot->x) >> 2;
-                    mvy[(*num_can)++] = (pmot->y) >> 2;
-                }
-            }
-            //#else
-            else /* original ST1 algorithm */
-            {
-                if (imb > 0)  /*left neighbor current frame */
-                {
-                    pmot = &mot16x16[mbnum-1];
-                    mvx[(*num_can)] = (pmot->x) >> 2;
-                    mvy[(*num_can)++] = (pmot->y) >> 2;
-
-                    if (jmb > 0)  /*upper-left neighbor current frame */
-                    {
-                        pmot = &mot16x16[mbnum-mbwidth-1];
-                        mvx[(*num_can)] = (pmot->x) >> 2;
-                        mvy[(*num_can)++] = (pmot->y) >> 2;
-                    }
-
-                }
-                if (jmb > 0)  /*upper neighbor current frame */
-                {
-                    pmot = &mot16x16[mbnum-mbwidth];
-                    mvx[(*num_can)] = (pmot->x) >> 2;
-                    mvy[(*num_can)++] = (pmot->y) >> 2;
-
-                    if (imb < mbheight - 1)  /*upper-right neighbor current frame */
-                    {
-                        pmot = &mot16x16[mbnum-mbwidth+1];
-                        mvx[(*num_can)] = (pmot->x) >> 2;
-                        mvy[(*num_can)++] = (pmot->y) >> 2;
-                    }
-                }
-            }
-
-            /* get predicted MV */
-            if (imb > 0)    /* get MV from left (A) neighbor either on current or previous frame */
-            {
-                availA = 1;
-                pmot = &mot16x16[mbnum-1];
-                pmvA_x = pmot->x;
-                pmvA_y = pmot->y;
-            }
-
-            if (jmb > 0) /* get MV from top (B) neighbor either on current or previous frame */
-            {
-                availB = 1;
-                pmot = &mot16x16[mbnum-mbwidth];
-                pmvB_x = pmot->x;
-                pmvB_y = pmot->y;
-
-                availC = 1;
-
-                if (imb < mbwidth - 1) /* get MV from top-right (C) neighbor of current frame */
-                {
-                    pmot = &mot16x16[mbnum-mbwidth+1];
-                }
-                else /* get MV from top-left (D) neighbor of current frame */
-                {
-                    pmot = &mot16x16[mbnum-mbwidth-1];
-                }
-                pmvC_x = pmot->x;
-                pmvC_y = pmot->y;
-            }
-        }
-//#endif
-    }
-
-    /*  3/23/01, remove redundant candidate (possible k-mean) */
-    num1 = *num_can;
-    *num_can = 1;
-    for (i = 1; i < num1; i++)
-    {
-        same = 0;
-        j = 0;
-        while (!same && j < *num_can)
-        {
-#if (CANDIDATE_DISTANCE==0)
-            if (mvx[i] == mvx[j] && mvy[i] == mvy[j])
-#else
-            // modified k-mean,  3/24/01, shouldn't be greater than 3
-            if (AVC_ABS(mvx[i] - mvx[j]) + AVC_ABS(mvy[i] - mvy[j]) < CANDIDATE_DISTANCE)
-#endif
-                same = 1;
-            j++;
-        }
-        if (!same)
-        {
-            mvx[*num_can] = mvx[i];
-            mvy[*num_can] = mvy[i];
-            (*num_can)++;
-        }
-    }
-
-    if (num1 == 5 && *num_can == 1)
-        *num_can = ALL_CAND_EQUAL; /* all are equal */
-
-    /* calculate predicted MV */
-
-    if (availA && !(availB || availC))
-    {
-        *cmvx = pmvA_x;
-        *cmvy = pmvA_y;
-    }
-    else
-    {
-        *cmvx = AVC_MEDIAN(pmvA_x, pmvB_x, pmvC_x);
-        *cmvy = AVC_MEDIAN(pmvA_y, pmvB_y, pmvC_y);
-    }
-
-    return ;
-}
-
-
-/*************************************************************
-    Function:   AVCMoveNeighborSAD
-    Date:       3/27/01
-    Purpose:    Move neighboring SAD around when center has shifted
-*************************************************************/
-
-void AVCMoveNeighborSAD(int dn[], int new_loc)
-{
-    int tmp[9];
-    tmp[0] = dn[0];
-    tmp[1] = dn[1];
-    tmp[2] = dn[2];
-    tmp[3] = dn[3];
-    tmp[4] = dn[4];
-    tmp[5] = dn[5];
-    tmp[6] = dn[6];
-    tmp[7] = dn[7];
-    tmp[8] = dn[8];
-    dn[0] = dn[1] = dn[2] = dn[3] = dn[4] = dn[5] = dn[6] = dn[7] = dn[8] = 65536;
-
-    switch (new_loc)
-    {
-        case 0:
-            break;
-        case 1:
-            dn[4] = tmp[2];
-            dn[5] = tmp[0];
-            dn[6] = tmp[8];
-            break;
-        case 2:
-            dn[4] = tmp[3];
-            dn[5] = tmp[4];
-            dn[6] = tmp[0];
-            dn[7] = tmp[8];
-            dn[8] = tmp[1];
-            break;
-        case 3:
-            dn[6] = tmp[4];
-            dn[7] = tmp[0];
-            dn[8] = tmp[2];
-            break;
-        case 4:
-            dn[1] = tmp[2];
-            dn[2] = tmp[3];
-            dn[6] = tmp[5];
-            dn[7] = tmp[6];
-            dn[8] = tmp[0];
-            break;
-        case 5:
-            dn[1] = tmp[0];
-            dn[2] = tmp[4];
-            dn[8] = tmp[6];
-            break;
-        case 6:
-            dn[1] = tmp[8];
-            dn[2] = tmp[0];
-            dn[3] = tmp[4];
-            dn[4] = tmp[5];
-            dn[8] = tmp[7];
-            break;
-        case 7:
-            dn[2] = tmp[8];
-            dn[3] = tmp[0];
-            dn[4] = tmp[6];
-            break;
-        case 8:
-            dn[2] = tmp[1];
-            dn[3] = tmp[2];
-            dn[4] = tmp[0];
-            dn[5] = tmp[6];
-            dn[6] = tmp[7];
-            break;
-    }
-    dn[0] = tmp[new_loc];
-
-    return ;
-}
-
-/*  3/28/01, find minimal of dn[9] */
-
-int AVCFindMin(int dn[])
-{
-    int min, i;
-    int dmin;
-
-    dmin = dn[1];
-    min = 1;
-    for (i = 2; i < 9; i++)
-    {
-        if (dn[i] < dmin)
-        {
-            dmin = dn[i];
-            min = i;
-        }
-    }
-
-    return min;
-}
-
-
-
diff --git a/media/libstagefright/codecs/avc/enc/src/rate_control.cpp b/media/libstagefright/codecs/avc/enc/src/rate_control.cpp
deleted file mode 100644
index 09dcc28..0000000
--- a/media/libstagefright/codecs/avc/enc/src/rate_control.cpp
+++ /dev/null
@@ -1,979 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-#include <math.h>
-
-/* rate control variables */
-#define RC_MAX_QUANT 51
-#define RC_MIN_QUANT 0   //cap to 10 to prevent rate fluctuation    
-
-#define MAD_MIN 1 /* handle the case of devision by zero in RC */
-
-
-/* local functions */
-double QP2Qstep(int QP);
-int Qstep2QP(double Qstep);
-
-double ComputeFrameMAD(AVCCommonObj *video, AVCRateControl *rateCtrl);
-
-void targetBitCalculation(AVCEncObject *encvid, AVCCommonObj *video, AVCRateControl *rateCtrl, MultiPass *pMP);
-
-void calculateQuantizer_Multipass(AVCEncObject *encvid, AVCCommonObj *video,
-                                  AVCRateControl *rateCtrl, MultiPass *pMP);
-
-void updateRC_PostProc(AVCRateControl *rateCtrl, MultiPass *pMP);
-
-void AVCSaveRDSamples(MultiPass *pMP, int counter_samples);
-
-void updateRateControl(AVCRateControl *rateControl, int nal_type);
-
-int GetAvgFrameQP(AVCRateControl *rateCtrl)
-{
-    return rateCtrl->Qc;
-}
-
-AVCEnc_Status RCDetermineFrameNum(AVCEncObject *encvid, AVCRateControl *rateCtrl, uint32 modTime, uint *frameNum)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    uint32 modTimeRef = encvid->modTimeRef;
-    int32  currFrameNum ;
-    int  frameInc;
-
-
-    /* check with the buffer fullness to make sure that we have enough bits to encode this frame */
-    /* we can use a threshold to guarantee minimum picture quality */
-    /**********************************/
-
-    /* for now, the default is to encode every frame, To Be Changed */
-    if (rateCtrl->first_frame)
-    {
-        encvid->modTimeRef = modTime;
-        encvid->wrapModTime = 0;
-        encvid->prevFrameNum = 0;
-        encvid->prevProcFrameNum = 0;
-
-        *frameNum = 0;
-
-        /* set frame type to IDR-frame */
-        video->nal_unit_type = AVC_NALTYPE_IDR;
-        sliceHdr->slice_type = AVC_I_ALL_SLICE;
-        video->slice_type = AVC_I_SLICE;
-
-        return AVCENC_SUCCESS;
-    }
-    else
-    {
-        if (modTime < modTimeRef) /* modTime wrapped around */
-        {
-            encvid->wrapModTime += ((uint32)0xFFFFFFFF - modTimeRef) + 1;
-            encvid->modTimeRef = modTimeRef = 0;
-        }
-        modTime += encvid->wrapModTime; /* wrapModTime is non zero after wrap-around */
-
-        currFrameNum = (int32)(((modTime - modTimeRef) * rateCtrl->frame_rate + 200) / 1000); /* add small roundings */
-
-        if (currFrameNum <= (int32)encvid->prevProcFrameNum)
-        {
-            return AVCENC_FAIL;  /* this is a late frame do not encode it */
-        }
-
-        frameInc = currFrameNum - encvid->prevProcFrameNum;
-
-        if (frameInc < rateCtrl->skip_next_frame + 1)
-        {
-            return AVCENC_FAIL;  /* frame skip required to maintain the target bit rate. */
-        }
-
-        RCUpdateBuffer(video, rateCtrl, frameInc - rateCtrl->skip_next_frame);  /* in case more frames dropped */
-
-        *frameNum = currFrameNum;
-
-        /* This part would be similar to DetermineVopType of m4venc */
-        if ((*frameNum >= (uint)rateCtrl->idrPeriod && rateCtrl->idrPeriod > 0) || (*frameNum > video->MaxFrameNum)) /* first frame or IDR*/
-        {
-            /* set frame type to IDR-frame */
-            if (rateCtrl->idrPeriod)
-            {
-                encvid->modTimeRef += (uint32)(rateCtrl->idrPeriod * 1000 / rateCtrl->frame_rate);
-                *frameNum -= rateCtrl->idrPeriod;
-            }
-            else
-            {
-                encvid->modTimeRef += (uint32)(video->MaxFrameNum * 1000 / rateCtrl->frame_rate);
-                *frameNum -= video->MaxFrameNum;
-            }
-
-            video->nal_unit_type = AVC_NALTYPE_IDR;
-            sliceHdr->slice_type = AVC_I_ALL_SLICE;
-            video->slice_type = AVC_I_SLICE;
-            encvid->prevProcFrameNum = *frameNum;
-        }
-        else
-        {
-            video->nal_unit_type = AVC_NALTYPE_SLICE;
-            sliceHdr->slice_type = AVC_P_ALL_SLICE;
-            video->slice_type = AVC_P_SLICE;
-            encvid->prevProcFrameNum = currFrameNum;
-        }
-
-    }
-
-    return AVCENC_SUCCESS;
-}
-
-void RCUpdateBuffer(AVCCommonObj *video, AVCRateControl *rateCtrl, int frameInc)
-{
-    int tmp;
-    MultiPass *pMP = rateCtrl->pMP;
-
-    OSCL_UNUSED_ARG(video);
-
-    if (rateCtrl->rcEnable == TRUE)
-    {
-        if (frameInc > 1)
-        {
-            tmp = rateCtrl->bitsPerFrame * (frameInc - 1);
-            rateCtrl->VBV_fullness -= tmp;
-            pMP->counter_BTsrc += 10 * (frameInc - 1);
-
-            /* Check buffer underflow */
-            if (rateCtrl->VBV_fullness < rateCtrl->low_bound)
-            {
-                rateCtrl->VBV_fullness = rateCtrl->low_bound; // -rateCtrl->Bs/2;
-                rateCtrl->TMN_W = rateCtrl->VBV_fullness - rateCtrl->low_bound;
-                pMP->counter_BTsrc = pMP->counter_BTdst + (int)((OsclFloat)(rateCtrl->Bs / 2 - rateCtrl->low_bound) / 2.0 / (pMP->target_bits_per_frame / 10));
-            }
-        }
-    }
-}
-
-
-AVCEnc_Status InitRateControlModule(AVCHandle *avcHandle)
-{
-    AVCEncObject *encvid = (AVCEncObject*) avcHandle->AVCObject;
-    AVCCommonObj *video = encvid->common;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    double L1, L2, L3, bpp;
-    int qp;
-    int i;
-
-    rateCtrl->basicUnit = video->PicSizeInMbs;
-
-    rateCtrl->MADofMB = (double*) avcHandle->CBAVC_Malloc(encvid->avcHandle->userData,
-                        video->PicSizeInMbs * sizeof(double), DEFAULT_ATTR);
-
-    if (!rateCtrl->MADofMB)
-    {
-        goto CLEANUP_RC;
-    }
-
-    if (rateCtrl->rcEnable == TRUE)
-    {
-        rateCtrl->pMP = (MultiPass*) avcHandle->CBAVC_Malloc(encvid->avcHandle->userData, sizeof(MultiPass), DEFAULT_ATTR);
-        if (!rateCtrl->pMP)
-        {
-            goto CLEANUP_RC;
-        }
-        rateCtrl->pMP->encoded_frames = -1; /* forget about the very first I frame */
-
-        /* RDInfo **pRDSamples */
-        rateCtrl->pMP->pRDSamples = (RDInfo **)avcHandle->CBAVC_Malloc(encvid->avcHandle->userData, (30 * sizeof(RDInfo *)), DEFAULT_ATTR);
-        if (!rateCtrl->pMP->pRDSamples)
-        {
-            goto CLEANUP_RC;
-        }
-
-        for (i = 0; i < 30; i++)
-        {
-            rateCtrl->pMP->pRDSamples[i] = (RDInfo *)avcHandle->CBAVC_Malloc(encvid->avcHandle->userData, (32 * sizeof(RDInfo)), DEFAULT_ATTR);
-            if (!rateCtrl->pMP->pRDSamples[i])
-            {
-                goto CLEANUP_RC;
-            }
-        }
-        rateCtrl->pMP->frameRange = (int)(rateCtrl->frame_rate * 1.0); /* 1.0s time frame*/
-        rateCtrl->pMP->frameRange = AVC_MAX(rateCtrl->pMP->frameRange, 5);
-        rateCtrl->pMP->frameRange = AVC_MIN(rateCtrl->pMP->frameRange, 30);
-
-        rateCtrl->pMP->framePos = -1;
-
-
-        rateCtrl->bitsPerFrame = (int32)(rateCtrl->bitRate / rateCtrl->frame_rate);
-
-        /* BX rate control */
-        rateCtrl->skip_next_frame = 0; /* must be initialized */
-
-        rateCtrl->Bs = rateCtrl->cpbSize;
-        rateCtrl->TMN_W = 0;
-        rateCtrl->VBV_fullness = (int)(rateCtrl->Bs * 0.5); /* rateCtrl->Bs */
-        rateCtrl->encoded_frames = 0;
-
-        rateCtrl->TMN_TH = rateCtrl->bitsPerFrame;
-
-        rateCtrl->max_BitVariance_num = (int)((OsclFloat)(rateCtrl->Bs - rateCtrl->VBV_fullness) / (rateCtrl->bitsPerFrame / 10.0)) - 5;
-        if (rateCtrl->max_BitVariance_num < 0) rateCtrl->max_BitVariance_num += 5;
-
-        // Set the initial buffer fullness
-        /* According to the spec, the initial buffer fullness needs to be set to 1/3 */
-        rateCtrl->VBV_fullness = (int)(rateCtrl->Bs / 3.0 - rateCtrl->Bs / 2.0); /* the buffer range is [-Bs/2, Bs/2] */
-        rateCtrl->pMP->counter_BTsrc = (int)((rateCtrl->Bs / 2.0 - rateCtrl->Bs / 3.0) / (rateCtrl->bitsPerFrame / 10.0));
-        rateCtrl->TMN_W = (int)(rateCtrl->VBV_fullness + rateCtrl->pMP->counter_BTsrc * (rateCtrl->bitsPerFrame / 10.0));
-
-        rateCtrl->low_bound = -rateCtrl->Bs / 2;
-        rateCtrl->VBV_fullness_offset = 0;
-
-        /* Setting the bitrate and framerate */
-        rateCtrl->pMP->bitrate = rateCtrl->bitRate;
-        rateCtrl->pMP->framerate = rateCtrl->frame_rate;
-        rateCtrl->pMP->target_bits_per_frame = rateCtrl->pMP->bitrate / rateCtrl->pMP->framerate;
-
-        /*compute the initial QP*/
-        bpp = 1.0 * rateCtrl->bitRate / (rateCtrl->frame_rate * (video->PicSizeInMbs << 8));
-        if (video->PicWidthInSamplesL == 176)
-        {
-            L1 = 0.1;
-            L2 = 0.3;
-            L3 = 0.6;
-        }
-        else if (video->PicWidthInSamplesL == 352)
-        {
-            L1 = 0.2;
-            L2 = 0.6;
-            L3 = 1.2;
-        }
-        else
-        {
-            L1 = 0.6;
-            L2 = 1.4;
-            L3 = 2.4;
-        }
-
-        if (rateCtrl->initQP == 0)
-        {
-            if (bpp <= L1)
-                qp = 35;
-            else if (bpp <= L2)
-                qp = 25;
-            else if (bpp <= L3)
-                qp = 20;
-            else
-                qp = 15;
-            rateCtrl->initQP = qp;
-        }
-
-        rateCtrl->Qc = rateCtrl->initQP;
-    }
-
-    return AVCENC_SUCCESS;
-
-CLEANUP_RC:
-
-    CleanupRateControlModule(avcHandle);
-    return AVCENC_MEMORY_FAIL;
-
-}
-
-
-void CleanupRateControlModule(AVCHandle *avcHandle)
-{
-    AVCEncObject *encvid = (AVCEncObject*) avcHandle->AVCObject;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    int i;
-
-    if (rateCtrl->MADofMB)
-    {
-        avcHandle->CBAVC_Free(avcHandle->userData, rateCtrl->MADofMB);
-    }
-
-    if (rateCtrl->pMP)
-    {
-        if (rateCtrl->pMP->pRDSamples)
-        {
-            for (i = 0; i < 30; i++)
-            {
-                if (rateCtrl->pMP->pRDSamples[i])
-                {
-                    avcHandle->CBAVC_Free(avcHandle->userData, rateCtrl->pMP->pRDSamples[i]);
-                }
-            }
-            avcHandle->CBAVC_Free(avcHandle->userData, rateCtrl->pMP->pRDSamples);
-        }
-        avcHandle->CBAVC_Free(avcHandle->userData, rateCtrl->pMP);
-    }
-
-    return ;
-}
-
-void RCInitGOP(AVCEncObject *encvid)
-{
-    /* in BX RC, there's no GOP-level RC */
-
-    OSCL_UNUSED_ARG(encvid);
-
-    return ;
-}
-
-
-void RCInitFrameQP(AVCEncObject *encvid)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    AVCPicParamSet *picParam = video->currPicParams;
-    MultiPass *pMP = rateCtrl->pMP;
-
-    if (rateCtrl->rcEnable == TRUE)
-    {
-        /* frame layer rate control */
-        if (rateCtrl->encoded_frames == 0)
-        {
-            video->QPy = rateCtrl->Qc = rateCtrl->initQP;
-        }
-        else
-        {
-            calculateQuantizer_Multipass(encvid, video, rateCtrl, pMP);
-            video->QPy = rateCtrl->Qc;
-        }
-
-        rateCtrl->NumberofHeaderBits = 0;
-        rateCtrl->NumberofTextureBits = 0;
-        rateCtrl->numFrameBits = 0; // reset
-
-        /* update pMP->framePos */
-        if (++pMP->framePos == pMP->frameRange) pMP->framePos = 0;
-
-        if (rateCtrl->T == 0)
-        {
-            pMP->counter_BTdst = (int)(rateCtrl->frame_rate * 7.5 + 0.5); /* 0.75s time frame */
-            pMP->counter_BTdst = AVC_MIN(pMP->counter_BTdst, (int)(rateCtrl->max_BitVariance_num / 2 * 0.40)); /* 0.75s time frame may go beyond VBV buffer if we set the buffer size smaller than 0.75s */
-            pMP->counter_BTdst = AVC_MAX(pMP->counter_BTdst, (int)((rateCtrl->Bs / 2 - rateCtrl->VBV_fullness) * 0.30 / (rateCtrl->TMN_TH / 10.0) + 0.5)); /* At least 30% of VBV buffer size/2 */
-            pMP->counter_BTdst = AVC_MIN(pMP->counter_BTdst, 20); /* Limit the target to be smaller than 3C */
-
-            pMP->target_bits = rateCtrl->T = rateCtrl->TMN_TH = (int)(rateCtrl->TMN_TH * (1.0 + pMP->counter_BTdst * 0.1));
-            pMP->diff_counter = pMP->counter_BTdst;
-        }
-
-        /* collect the necessary data: target bits, actual bits, mad and QP */
-        pMP->target_bits = rateCtrl->T;
-        pMP->QP  = video->QPy;
-
-        pMP->mad = (OsclFloat)rateCtrl->totalSAD / video->PicSizeInMbs; //ComputeFrameMAD(video, rateCtrl);
-        if (pMP->mad < MAD_MIN) pMP->mad = MAD_MIN; /* MAD_MIN is defined as 1 in mp4def.h */
-
-        pMP->bitrate = rateCtrl->bitRate; /* calculated in RCVopQPSetting */
-        pMP->framerate = rateCtrl->frame_rate;
-
-        /* first pass encoding */
-        pMP->nRe_Quantized = 0;
-
-    } // rcEnable
-    else
-    {
-        video->QPy = rateCtrl->initQP;
-    }
-
-//  printf(" %d ",video->QPy);
-
-    if (video->CurrPicNum == 0 && encvid->outOfBandParamSet == FALSE)
-    {
-        picParam->pic_init_qs_minus26 = 0;
-        picParam->pic_init_qp_minus26 = video->QPy - 26;
-    }
-
-    // need this for motion estimation
-    encvid->lambda_mode = QP2QUANT[AVC_MAX(0, video->QPy-SHIFT_QP)];
-    encvid->lambda_motion = LAMBDA_FACTOR(encvid->lambda_mode);
-    return ;
-}
-
-/* Mad based variable bit allocation + QP calculation with a new quadratic method */
-void calculateQuantizer_Multipass(AVCEncObject *encvid, AVCCommonObj *video,
-                                  AVCRateControl *rateCtrl, MultiPass *pMP)
-{
-    int prev_actual_bits = 0, curr_target, /*pos=0,*/i, j;
-    OsclFloat Qstep, prev_QP = 0.625;
-
-    OsclFloat curr_mad, prev_mad, curr_RD, prev_RD, average_mad, aver_QP;
-
-    /* Mad based variable bit allocation */
-    targetBitCalculation(encvid, video, rateCtrl, pMP);
-
-    if (rateCtrl->T <= 0 || rateCtrl->totalSAD == 0)
-    {
-        if (rateCtrl->T < 0)    rateCtrl->Qc = RC_MAX_QUANT;
-        return;
-    }
-
-    /* ---------------------------------------------------------------------------------------------------*/
-    /* current frame QP estimation */
-    curr_target = rateCtrl->T;
-    curr_mad = (OsclFloat)rateCtrl->totalSAD / video->PicSizeInMbs;
-    if (curr_mad < MAD_MIN) curr_mad = MAD_MIN; /* MAD_MIN is defined as 1 in mp4def.h */
-    curr_RD  = (OsclFloat)curr_target / curr_mad;
-
-    if (rateCtrl->skip_next_frame == -1) // previous was skipped
-    {
-        i = pMP->framePos;
-        prev_mad = pMP->pRDSamples[i][0].mad;
-        prev_QP = pMP->pRDSamples[i][0].QP;
-        prev_actual_bits = pMP->pRDSamples[i][0].actual_bits;
-    }
-    else
-    {
-        /* Another version of search the optimal point */
-        prev_mad = 0.0;
-        i = 0;
-        while (i < pMP->frameRange && prev_mad < 0.001) /* find first one with nonzero prev_mad */
-        {
-            prev_mad = pMP->pRDSamples[i][0].mad;
-            i++;
-        }
-
-        if (i < pMP->frameRange)
-        {
-            prev_actual_bits = pMP->pRDSamples[i-1][0].actual_bits;
-
-            for (j = 0; i < pMP->frameRange; i++)
-            {
-                if (pMP->pRDSamples[i][0].mad != 0 &&
-                        AVC_ABS(prev_mad - curr_mad) > AVC_ABS(pMP->pRDSamples[i][0].mad - curr_mad))
-                {
-                    prev_mad = pMP->pRDSamples[i][0].mad;
-                    prev_actual_bits = pMP->pRDSamples[i][0].actual_bits;
-                    j = i;
-                }
-            }
-            prev_QP = QP2Qstep(pMP->pRDSamples[j][0].QP);
-
-            for (i = 1; i < pMP->samplesPerFrame[j]; i++)
-            {
-                if (AVC_ABS(prev_actual_bits - curr_target) > AVC_ABS(pMP->pRDSamples[j][i].actual_bits - curr_target))
-                {
-                    prev_actual_bits = pMP->pRDSamples[j][i].actual_bits;
-                    prev_QP = QP2Qstep(pMP->pRDSamples[j][i].QP);
-                }
-            }
-        }
-    }
-
-    // quadratic approximation
-    if (prev_mad > 0.001) // only when prev_mad is greater than 0, otherwise keep using the same QP
-    {
-        prev_RD = (OsclFloat)prev_actual_bits / prev_mad;
-        //rateCtrl->Qc = (Int)(prev_QP * sqrt(prev_actual_bits/curr_target) + 0.4);
-        if (prev_QP == 0.625) // added this to allow getting out of QP = 0 easily
-        {
-            Qstep = (int)(prev_RD / curr_RD + 0.5);
-        }
-        else
-        {
-            //      rateCtrl->Qc =(Int)(prev_QP * M4VENC_SQRT(prev_RD/curr_RD) + 0.9);
-
-            if (prev_RD / curr_RD > 0.5 && prev_RD / curr_RD < 2.0)
-                Qstep = (int)(prev_QP * (sqrt(prev_RD / curr_RD) + prev_RD / curr_RD) / 2.0 + 0.9); /* Quadratic and linear approximation */
-            else
-                Qstep = (int)(prev_QP * (sqrt(prev_RD / curr_RD) + pow(prev_RD / curr_RD, 1.0 / 3.0)) / 2.0 + 0.9);
-        }
-        // lower bound on Qc should be a function of curr_mad
-        // When mad is already low, lower bound on Qc doesn't have to be small.
-        // Note, this doesn't work well for low complexity clip encoded at high bit rate
-        // it doesn't hit the target bit rate due to this QP lower bound.
-        /// if((curr_mad < 8) && (rateCtrl->Qc < 12))   rateCtrl->Qc = 12;
-        //  else    if((curr_mad < 128) && (rateCtrl->Qc < 3)) rateCtrl->Qc = 3;
-
-        rateCtrl->Qc = Qstep2QP(Qstep);
-
-        if (rateCtrl->Qc < RC_MIN_QUANT) rateCtrl->Qc = RC_MIN_QUANT;
-        if (rateCtrl->Qc > RC_MAX_QUANT)    rateCtrl->Qc = RC_MAX_QUANT;
-    }
-
-    /* active bit resource protection */
-    aver_QP = (pMP->encoded_frames == 0 ? 0 : pMP->sum_QP / (OsclFloat)pMP->encoded_frames);
-    average_mad = (pMP->encoded_frames == 0 ? 0 : pMP->sum_mad / (OsclFloat)pMP->encoded_frames); /* this function is called from the scond encoded frame*/
-    if (pMP->diff_counter == 0 &&
-            ((OsclFloat)rateCtrl->Qc <= aver_QP*1.1 || curr_mad <= average_mad*1.1) &&
-            pMP->counter_BTsrc <= (pMP->counter_BTdst + (int)(pMP->framerate*1.0 + 0.5)))
-    {
-        rateCtrl->TMN_TH -= (int)(pMP->target_bits_per_frame / 10.0);
-        rateCtrl->T = rateCtrl->TMN_TH - rateCtrl->TMN_W;
-        pMP->counter_BTsrc++;
-        pMP->diff_counter--;
-    }
-
-}
-
-void targetBitCalculation(AVCEncObject *encvid, AVCCommonObj *video, AVCRateControl *rateCtrl, MultiPass *pMP)
-{
-    OSCL_UNUSED_ARG(encvid);
-    OsclFloat curr_mad;//, average_mad;
-    int diff_counter_BTsrc, diff_counter_BTdst, prev_counter_diff, curr_counter_diff, bound;
-    /* BT = Bit Transfer, for pMP->counter_BTsrc, pMP->counter_BTdst */
-
-    /* some stuff about frame dropping remained here to be done because pMP cannot be inserted into updateRateControl()*/
-    updateRC_PostProc(rateCtrl, pMP);
-
-    /* update pMP->counter_BTsrc and pMP->counter_BTdst to avoid interger overflow */
-    if (pMP->counter_BTsrc > 1000 && pMP->counter_BTdst > 1000)
-    {
-        pMP->counter_BTsrc -= 1000;
-        pMP->counter_BTdst -= 1000;
-    }
-
-    /* ---------------------------------------------------------------------------------------------------*/
-    /* target calculation */
-    curr_mad = (OsclFloat)rateCtrl->totalSAD / video->PicSizeInMbs;
-    if (curr_mad < MAD_MIN) curr_mad = MAD_MIN; /* MAD_MIN is defined as 1 in mp4def.h */
-    diff_counter_BTsrc = diff_counter_BTdst = 0;
-    pMP->diff_counter = 0;
-
-
-    /*1.calculate average mad */
-    pMP->sum_mad += curr_mad;
-    //average_mad = (pMP->encoded_frames < 1 ? curr_mad : pMP->sum_mad/(OsclFloat)(pMP->encoded_frames+1)); /* this function is called from the scond encoded frame*/
-    //pMP->aver_mad = average_mad;
-    if (pMP->encoded_frames >= 0) /* pMP->encoded_frames is set to -1 initially, so forget about the very first I frame */
-        pMP->aver_mad = (pMP->aver_mad * pMP->encoded_frames + curr_mad) / (pMP->encoded_frames + 1);
-
-    if (pMP->overlapped_win_size > 0 && pMP->encoded_frames_prev >= 0)
-        pMP->aver_mad_prev = (pMP->aver_mad_prev * pMP->encoded_frames_prev + curr_mad) / (pMP->encoded_frames_prev + 1);
-
-    /*2.average_mad, mad ==> diff_counter_BTsrc, diff_counter_BTdst */
-    if (pMP->overlapped_win_size == 0)
-    {
-        /* original verison */
-        if (curr_mad > pMP->aver_mad*1.1)
-        {
-            if (curr_mad / (pMP->aver_mad + 0.0001) > 2)
-                diff_counter_BTdst = (int)(sqrt(curr_mad / (pMP->aver_mad + 0.0001)) * 10 + 0.4) - 10;
-            //diff_counter_BTdst = (int)((sqrt(curr_mad/pMP->aver_mad)*2+curr_mad/pMP->aver_mad)/(3*0.1) + 0.4) - 10;
-            else
-                diff_counter_BTdst = (int)(curr_mad / (pMP->aver_mad + 0.0001) * 10 + 0.4) - 10;
-        }
-        else /* curr_mad <= average_mad*1.1 */
-            //diff_counter_BTsrc = 10 - (int)((sqrt(curr_mad/pMP->aver_mad) + pow(curr_mad/pMP->aver_mad, 1.0/3.0))/(2.0*0.1) + 0.4);
-            diff_counter_BTsrc = 10 - (int)(sqrt(curr_mad / (pMP->aver_mad + 0.0001)) * 10 + 0.5);
-
-        /* actively fill in the possible gap */
-        if (diff_counter_BTsrc == 0 && diff_counter_BTdst == 0 &&
-                curr_mad <= pMP->aver_mad*1.1 && pMP->counter_BTsrc < pMP->counter_BTdst)
-            diff_counter_BTsrc = 1;
-
-    }
-    else if (pMP->overlapped_win_size > 0)
-    {
-        /* transition time: use previous average mad "pMP->aver_mad_prev" instead of the current average mad "pMP->aver_mad" */
-        if (curr_mad > pMP->aver_mad_prev*1.1)
-        {
-            if (curr_mad / pMP->aver_mad_prev > 2)
-                diff_counter_BTdst = (int)(sqrt(curr_mad / (pMP->aver_mad_prev + 0.0001)) * 10 + 0.4) - 10;
-            //diff_counter_BTdst = (int)((M4VENC_SQRT(curr_mad/pMP->aver_mad_prev)*2+curr_mad/pMP->aver_mad_prev)/(3*0.1) + 0.4) - 10;
-            else
-                diff_counter_BTdst = (int)(curr_mad / (pMP->aver_mad_prev + 0.0001) * 10 + 0.4) - 10;
-        }
-        else /* curr_mad <= average_mad*1.1 */
-            //diff_counter_BTsrc = 10 - (Int)((sqrt(curr_mad/pMP->aver_mad_prev) + pow(curr_mad/pMP->aver_mad_prev, 1.0/3.0))/(2.0*0.1) + 0.4);
-            diff_counter_BTsrc = 10 - (int)(sqrt(curr_mad / (pMP->aver_mad_prev + 0.0001)) * 10 + 0.5);
-
-        /* actively fill in the possible gap */
-        if (diff_counter_BTsrc == 0 && diff_counter_BTdst == 0 &&
-                curr_mad <= pMP->aver_mad_prev*1.1 && pMP->counter_BTsrc < pMP->counter_BTdst)
-            diff_counter_BTsrc = 1;
-
-        if (--pMP->overlapped_win_size <= 0)    pMP->overlapped_win_size = 0;
-    }
-
-
-    /* if difference is too much, do clipping */
-    /* First, set the upper bound for current bit allocation variance: 80% of available buffer */
-    bound = (int)((rateCtrl->Bs / 2 - rateCtrl->VBV_fullness) * 0.6 / (pMP->target_bits_per_frame / 10)); /* rateCtrl->Bs */
-    diff_counter_BTsrc =  AVC_MIN(diff_counter_BTsrc, bound);
-    diff_counter_BTdst =  AVC_MIN(diff_counter_BTdst, bound);
-
-    /* Second, set another upper bound for current bit allocation: 4-5*bitrate/framerate */
-    bound = 50;
-//  if(video->encParams->RC_Type == CBR_LOWDELAY)
-//  not necessary       bound = 10;  -- For Low delay */
-
-    diff_counter_BTsrc =  AVC_MIN(diff_counter_BTsrc, bound);
-    diff_counter_BTdst =  AVC_MIN(diff_counter_BTdst, bound);
-
-
-    /* Third, check the buffer */
-    prev_counter_diff = pMP->counter_BTdst - pMP->counter_BTsrc;
-    curr_counter_diff = prev_counter_diff + (diff_counter_BTdst - diff_counter_BTsrc);
-
-    if (AVC_ABS(prev_counter_diff) >= rateCtrl->max_BitVariance_num || AVC_ABS(curr_counter_diff) >= rateCtrl->max_BitVariance_num)
-    {   //diff_counter_BTsrc = diff_counter_BTdst = 0;
-
-        if (curr_counter_diff > rateCtrl->max_BitVariance_num && diff_counter_BTdst)
-        {
-            diff_counter_BTdst = (rateCtrl->max_BitVariance_num - prev_counter_diff) + diff_counter_BTsrc;
-            if (diff_counter_BTdst < 0) diff_counter_BTdst = 0;
-        }
-
-        else if (curr_counter_diff < -rateCtrl->max_BitVariance_num && diff_counter_BTsrc)
-        {
-            diff_counter_BTsrc = diff_counter_BTdst - (-rateCtrl->max_BitVariance_num - prev_counter_diff);
-            if (diff_counter_BTsrc < 0) diff_counter_BTsrc = 0;
-        }
-    }
-
-
-    /*3.diff_counter_BTsrc, diff_counter_BTdst ==> TMN_TH */
-    rateCtrl->TMN_TH = (int)(pMP->target_bits_per_frame);
-    pMP->diff_counter = 0;
-
-    if (diff_counter_BTsrc)
-    {
-        rateCtrl->TMN_TH -= (int)(pMP->target_bits_per_frame * diff_counter_BTsrc * 0.1);
-        pMP->diff_counter = -diff_counter_BTsrc;
-    }
-    else if (diff_counter_BTdst)
-    {
-        rateCtrl->TMN_TH += (int)(pMP->target_bits_per_frame * diff_counter_BTdst * 0.1);
-        pMP->diff_counter = diff_counter_BTdst;
-    }
-
-
-    /*4.update pMP->counter_BTsrc, pMP->counter_BTdst */
-    pMP->counter_BTsrc += diff_counter_BTsrc;
-    pMP->counter_BTdst += diff_counter_BTdst;
-
-
-    /*5.target bit calculation */
-    rateCtrl->T = rateCtrl->TMN_TH - rateCtrl->TMN_W;
-
-    return ;
-}
-
-void updateRC_PostProc(AVCRateControl *rateCtrl, MultiPass *pMP)
-{
-    if (rateCtrl->skip_next_frame > 0) /* skip next frame */
-    {
-        pMP->counter_BTsrc += 10 * rateCtrl->skip_next_frame;
-
-    }
-    else if (rateCtrl->skip_next_frame == -1) /* skip current frame */
-    {
-        pMP->counter_BTdst -= pMP->diff_counter;
-        pMP->counter_BTsrc += 10;
-
-        pMP->sum_mad -= pMP->mad;
-        pMP->aver_mad = (pMP->aver_mad * pMP->encoded_frames - pMP->mad) / (pMP->encoded_frames - 1 + 0.0001);
-        pMP->sum_QP  -= pMP->QP;
-        pMP->encoded_frames --;
-    }
-    /* some stuff in update VBV_fullness remains here */
-    //if(rateCtrl->VBV_fullness < -rateCtrl->Bs/2) /* rateCtrl->Bs */
-    if (rateCtrl->VBV_fullness < rateCtrl->low_bound)
-    {
-        rateCtrl->VBV_fullness = rateCtrl->low_bound; // -rateCtrl->Bs/2;
-        rateCtrl->TMN_W = rateCtrl->VBV_fullness - rateCtrl->low_bound;
-        pMP->counter_BTsrc = pMP->counter_BTdst + (int)((OsclFloat)(rateCtrl->Bs / 2 - rateCtrl->low_bound) / 2.0 / (pMP->target_bits_per_frame / 10));
-    }
-}
-
-
-void RCInitChromaQP(AVCEncObject *encvid)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCMacroblock *currMB = video->currMB;
-    int q_bits;
-
-    /* we have to do the same thing for AVC_CLIP3(0,51,video->QSy) */
-
-    video->QPy_div_6 = (currMB->QPy * 43) >> 8;
-    video->QPy_mod_6 = currMB->QPy - 6 * video->QPy_div_6;
-    currMB->QPc = video->QPc = mapQPi2QPc[AVC_CLIP3(0, 51, currMB->QPy + video->currPicParams->chroma_qp_index_offset)];
-    video->QPc_div_6 = (video->QPc * 43) >> 8;
-    video->QPc_mod_6 = video->QPc - 6 * video->QPc_div_6;
-
-    /* pre-calculate this to save computation */
-    q_bits = 4 + video->QPy_div_6;
-    if (video->slice_type == AVC_I_SLICE)
-    {
-        encvid->qp_const = 682 << q_bits;       // intra
-    }
-    else
-    {
-        encvid->qp_const = 342 << q_bits;       // inter
-    }
-
-    q_bits = 4 + video->QPc_div_6;
-    if (video->slice_type == AVC_I_SLICE)
-    {
-        encvid->qp_const_c = 682 << q_bits;    // intra
-    }
-    else
-    {
-        encvid->qp_const_c = 342 << q_bits;    // inter
-    }
-
-    encvid->lambda_mode = QP2QUANT[AVC_MAX(0, currMB->QPy-SHIFT_QP)];
-    encvid->lambda_motion = LAMBDA_FACTOR(encvid->lambda_mode);
-
-    return ;
-}
-
-
-void RCInitMBQP(AVCEncObject *encvid)
-{
-    AVCCommonObj *video =  encvid->common;
-    AVCMacroblock *currMB = video->currMB;
-
-    currMB->QPy = video->QPy; /* set to previous value or picture level */
-
-    RCInitChromaQP(encvid);
-
-}
-
-void RCPostMB(AVCCommonObj *video, AVCRateControl *rateCtrl, int num_header_bits, int num_texture_bits)
-{
-    OSCL_UNUSED_ARG(video);
-    rateCtrl->numMBHeaderBits = num_header_bits;
-    rateCtrl->numMBTextureBits = num_texture_bits;
-    rateCtrl->NumberofHeaderBits += rateCtrl->numMBHeaderBits;
-    rateCtrl->NumberofTextureBits += rateCtrl->numMBTextureBits;
-}
-
-void RCRestoreQP(AVCMacroblock *currMB, AVCCommonObj *video, AVCEncObject *encvid)
-{
-    currMB->QPy = video->QPy; /* use previous QP */
-    RCInitChromaQP(encvid);
-
-    return ;
-}
-
-
-void RCCalculateMAD(AVCEncObject *encvid, AVCMacroblock *currMB, uint8 *orgL, int orgPitch)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    uint32 dmin_lx;
-
-    if (rateCtrl->rcEnable == TRUE)
-    {
-        if (currMB->mb_intra)
-        {
-            if (currMB->mbMode == AVC_I16)
-            {
-                dmin_lx = (0xFFFF << 16) | orgPitch;
-                rateCtrl->MADofMB[video->mbNum] = AVCSAD_Macroblock_C(orgL,
-                                                  encvid->pred_i16[currMB->i16Mode], dmin_lx, NULL);
-            }
-            else /* i4 */
-            {
-                rateCtrl->MADofMB[video->mbNum] = encvid->i4_sad / 256.;
-            }
-        }
-        /* for INTER, we have already saved it with the MV search */
-    }
-
-    return ;
-}
-
-
-
-AVCEnc_Status RCUpdateFrame(AVCEncObject *encvid)
-{
-    AVCCommonObj *video = encvid->common;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    MultiPass *pMP = rateCtrl->pMP;
-    int diff_BTCounter;
-    int nal_type = video->nal_unit_type;
-
-    /* update the complexity weight of I, P, B frame */
-
-    if (rateCtrl->rcEnable == TRUE)
-    {
-        pMP->actual_bits = rateCtrl->numFrameBits;
-        pMP->mad = (OsclFloat)rateCtrl->totalSAD / video->PicSizeInMbs; //ComputeFrameMAD(video, rateCtrl);
-
-        AVCSaveRDSamples(pMP, 0);
-
-        pMP->encoded_frames++;
-
-        /* for pMP->samplesPerFrame */
-        pMP->samplesPerFrame[pMP->framePos] = 0;
-
-        pMP->sum_QP += pMP->QP;
-
-        /* update pMP->counter_BTsrc, pMP->counter_BTdst */
-        /* re-allocate the target bit again and then stop encoding */
-        diff_BTCounter = (int)((OsclFloat)(rateCtrl->TMN_TH - rateCtrl->TMN_W - pMP->actual_bits) /
-                               (pMP->bitrate / (pMP->framerate + 0.0001) + 0.0001) / 0.1);
-        if (diff_BTCounter >= 0)
-            pMP->counter_BTsrc += diff_BTCounter; /* pMP->actual_bits is smaller */
-        else
-            pMP->counter_BTdst -= diff_BTCounter; /* pMP->actual_bits is bigger */
-
-        rateCtrl->TMN_TH -= (int)((OsclFloat)pMP->bitrate / (pMP->framerate + 0.0001) * (diff_BTCounter * 0.1));
-        rateCtrl->T = pMP->target_bits = rateCtrl->TMN_TH - rateCtrl->TMN_W;
-        pMP->diff_counter -= diff_BTCounter;
-
-        rateCtrl->Rc = rateCtrl->numFrameBits;  /* Total Bits for current frame */
-        rateCtrl->Hc = rateCtrl->NumberofHeaderBits;    /* Total Bits in Header and Motion Vector */
-
-        /* BX_RC */
-        updateRateControl(rateCtrl, nal_type);
-        if (rateCtrl->skip_next_frame == -1) // skip current frame
-        {
-            status = AVCENC_SKIPPED_PICTURE;
-        }
-    }
-
-    rateCtrl->first_frame = 0;  // reset here after we encode the first frame.
-
-    return status;
-}
-
-void AVCSaveRDSamples(MultiPass *pMP, int counter_samples)
-{
-    /* for pMP->pRDSamples */
-    pMP->pRDSamples[pMP->framePos][counter_samples].QP    = pMP->QP;
-    pMP->pRDSamples[pMP->framePos][counter_samples].actual_bits = pMP->actual_bits;
-    pMP->pRDSamples[pMP->framePos][counter_samples].mad   = pMP->mad;
-    pMP->pRDSamples[pMP->framePos][counter_samples].R_D = (OsclFloat)pMP->actual_bits / (pMP->mad + 0.0001);
-
-    return ;
-}
-
-void updateRateControl(AVCRateControl *rateCtrl, int nal_type)
-{
-    int  frame_bits;
-    MultiPass *pMP = rateCtrl->pMP;
-
-    /* BX rate contro\l */
-    frame_bits = (int)(rateCtrl->bitRate / rateCtrl->frame_rate);
-    rateCtrl->TMN_W += (rateCtrl->Rc - rateCtrl->TMN_TH);
-    rateCtrl->VBV_fullness += (rateCtrl->Rc - frame_bits); //rateCtrl->Rp);
-    //if(rateCtrl->VBV_fullness < 0) rateCtrl->VBV_fullness = -1;
-
-    rateCtrl->encoded_frames++;
-
-    /* frame dropping */
-    rateCtrl->skip_next_frame = 0;
-
-    if ((rateCtrl->VBV_fullness > rateCtrl->Bs / 2) && nal_type != AVC_NALTYPE_IDR) /* skip the current frame */ /* rateCtrl->Bs */
-    {
-        rateCtrl->TMN_W -= (rateCtrl->Rc - rateCtrl->TMN_TH);
-        rateCtrl->VBV_fullness -= rateCtrl->Rc;
-        rateCtrl->skip_next_frame = -1;
-    }
-    else if ((OsclFloat)(rateCtrl->VBV_fullness - rateCtrl->VBV_fullness_offset) > (rateCtrl->Bs / 2 - rateCtrl->VBV_fullness_offset)*0.95) /* skip next frame */
-    {
-        rateCtrl->VBV_fullness -= frame_bits; //rateCtrl->Rp;
-        rateCtrl->skip_next_frame = 1;
-        pMP->counter_BTsrc -= (int)((OsclFloat)(rateCtrl->Bs / 2 - rateCtrl->low_bound) / 2.0 / (pMP->target_bits_per_frame / 10));
-        /* BX_1, skip more than 1 frames  */
-        //while(rateCtrl->VBV_fullness > rateCtrl->Bs*0.475)
-        while ((rateCtrl->VBV_fullness - rateCtrl->VBV_fullness_offset) > (rateCtrl->Bs / 2 - rateCtrl->VBV_fullness_offset)*0.95)
-        {
-            rateCtrl->VBV_fullness -= frame_bits; //rateCtrl->Rp;
-            rateCtrl->skip_next_frame++;
-            pMP->counter_BTsrc -= (int)((OsclFloat)(rateCtrl->Bs / 2 - rateCtrl->low_bound) / 2.0 / (pMP->target_bits_per_frame / 10));
-        }
-
-        /* END BX_1 */
-    }
-}
-
-
-double ComputeFrameMAD(AVCCommonObj *video, AVCRateControl *rateCtrl)
-{
-    double TotalMAD;
-    int i;
-    TotalMAD = 0.0;
-    for (i = 0; i < (int)video->PicSizeInMbs; i++)
-        TotalMAD += rateCtrl->MADofMB[i];
-    TotalMAD /= video->PicSizeInMbs;
-    return TotalMAD;
-}
-
-
-
-
-
-/* convert from QP to Qstep */
-double QP2Qstep(int QP)
-{
-    int i;
-    double Qstep;
-    static const double QP2QSTEP[6] = { 0.625, 0.6875, 0.8125, 0.875, 1.0, 1.125 };
-
-    Qstep = QP2QSTEP[QP % 6];
-    for (i = 0; i < (QP / 6); i++)
-        Qstep *= 2;
-
-    return Qstep;
-}
-
-/* convert from step size to QP */
-int Qstep2QP(double Qstep)
-{
-    int q_per = 0, q_rem = 0;
-
-    //  assert( Qstep >= QP2Qstep(0) && Qstep <= QP2Qstep(51) );
-    if (Qstep < QP2Qstep(0))
-        return 0;
-    else if (Qstep > QP2Qstep(51))
-        return 51;
-
-    while (Qstep > QP2Qstep(5))
-    {
-        Qstep /= 2;
-        q_per += 1;
-    }
-
-    if (Qstep <= (0.625 + 0.6875) / 2)
-    {
-        Qstep = 0.625;
-        q_rem = 0;
-    }
-    else if (Qstep <= (0.6875 + 0.8125) / 2)
-    {
-        Qstep = 0.6875;
-        q_rem = 1;
-    }
-    else if (Qstep <= (0.8125 + 0.875) / 2)
-    {
-        Qstep = 0.8125;
-        q_rem = 2;
-    }
-    else if (Qstep <= (0.875 + 1.0) / 2)
-    {
-        Qstep = 0.875;
-        q_rem = 3;
-    }
-    else if (Qstep <= (1.0 + 1.125) / 2)
-    {
-        Qstep = 1.0;
-        q_rem = 4;
-    }
-    else
-    {
-        Qstep = 1.125;
-        q_rem = 5;
-    }
-
-    return (q_per * 6 + q_rem);
-}
-
-
-
diff --git a/media/libstagefright/codecs/avc/enc/src/residual.cpp b/media/libstagefright/codecs/avc/enc/src/residual.cpp
deleted file mode 100644
index 42eb910..0000000
--- a/media/libstagefright/codecs/avc/enc/src/residual.cpp
+++ /dev/null
@@ -1,389 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-
-AVCEnc_Status EncodeIntraPCM(AVCEncObject *encvid)
-{
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    AVCCommonObj *video = encvid->common;
-    AVCFrameIO  *currInput = encvid->currInput;
-    AVCEncBitstream *stream = encvid->bitstream;
-    int x_position = (video->mb_x << 4);
-    int y_position = (video->mb_y << 4);
-    int orgPitch = currInput->pitch;
-    int offset1 = y_position * orgPitch + x_position;
-    int i, j;
-    int offset;
-    uint8 *pDst, *pSrc;
-    uint code;
-
-    ue_v(stream, 25);
-
-    i = stream->bit_left & 0x7;
-    if (i) /* not byte-aligned */
-    {
-        BitstreamWriteBits(stream, 0, i);
-    }
-
-    pSrc = currInput->YCbCr[0] + offset1;
-    pDst = video->currPic->Sl + offset1;
-    offset = video->PicWidthInSamplesL - 16;
-
-    /* at this point bitstream is byte-aligned */
-    j = 16;
-    while (j > 0)
-    {
-#if (WORD_SIZE==32)
-        for (i = 0; i < 4; i++)
-        {
-            code = *((uint*)pSrc);
-            pSrc += 4;
-            *((uint*)pDst) = code;
-            pDst += 4;
-            status = BitstreamWriteBits(stream, 32, code);
-        }
-#else
-        for (i = 0; i < 8; i++)
-        {
-            code = *((uint*)pSrc);
-            pSrc += 2;
-            *((uint*)pDst) = code;
-            pDst += 2;
-            status = BitstreamWriteBits(stream, 16, code);
-        }
-#endif
-        pDst += offset;
-        pSrc += offset;
-        j--;
-    }
-    if (status != AVCENC_SUCCESS)  /* check only once per line */
-        return status;
-
-    pDst = video->currPic->Scb + ((offset1 + x_position) >> 2);
-    pSrc = currInput->YCbCr[1] + ((offset1 + x_position) >> 2);
-    offset >>= 1;
-
-    j = 8;
-    while (j > 0)
-    {
-#if (WORD_SIZE==32)
-        for (i = 0; i < 2; i++)
-        {
-            code = *((uint*)pSrc);
-            pSrc += 4;
-            *((uint*)pDst) = code;
-            pDst += 4;
-            status = BitstreamWriteBits(stream, 32, code);
-        }
-#else
-        for (i = 0; i < 4; i++)
-        {
-            code = *((uint*)pSrc);
-            pSrc += 2;
-            *((uint*)pDst) = code;
-            pDst += 2;
-            status = BitstreamWriteBits(stream, 16, code);
-        }
-#endif
-        pDst += offset;
-        pSrc += offset;
-        j--;
-    }
-
-    if (status != AVCENC_SUCCESS)  /* check only once per line */
-        return status;
-
-    pDst = video->currPic->Scr + ((offset1 + x_position) >> 2);
-    pSrc = currInput->YCbCr[2] + ((offset1 + x_position) >> 2);
-
-    j = 8;
-    while (j > 0)
-    {
-#if (WORD_SIZE==32)
-        for (i = 0; i < 2; i++)
-        {
-            code = *((uint*)pSrc);
-            pSrc += 4;
-            *((uint*)pDst) = code;
-            pDst += 4;
-            status = BitstreamWriteBits(stream, 32, code);
-        }
-#else
-        for (i = 0; i < 4; i++)
-        {
-            code = *((uint*)pSrc);
-            pSrc += 2;
-            *((uint*)pDst) = code;
-            pDst += 2;
-            status = BitstreamWriteBits(stream, 16, code);
-        }
-#endif
-        pDst += offset;
-        pSrc += offset;
-        j--;
-    }
-
-    return status;
-}
-
-
-AVCEnc_Status enc_residual_block(AVCEncObject *encvid, AVCResidualType type, int cindx, AVCMacroblock *currMB)
-{
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    AVCCommonObj *video = encvid->common;
-    int i, maxNumCoeff, nC;
-    int cdc = 0, cac = 0;
-    int TrailingOnes;
-    AVCEncBitstream *stream = encvid->bitstream;
-    uint trailing_ones_sign_flag;
-    int zerosLeft;
-    int *level, *run;
-    int TotalCoeff;
-    const static int incVlc[] = {0, 3, 6, 12, 24, 48, 32768};  // maximum vlc = 6
-    int escape, numPrefix, sufmask, suffix, shift, sign, value, absvalue, vlcnum, level_two_or_higher;
-    int bindx = blkIdx2blkXY[cindx>>2][cindx&3] ; // raster scan index
-
-    switch (type)
-    {
-        case AVC_Luma:
-            maxNumCoeff = 16;
-            level = encvid->level[cindx];
-            run = encvid->run[cindx];
-            TotalCoeff = currMB->nz_coeff[bindx];
-            break;
-        case AVC_Intra16DC:
-            maxNumCoeff = 16;
-            level = encvid->leveldc;
-            run = encvid->rundc;
-            TotalCoeff = cindx; /* special case */
-            bindx = 0;
-            cindx = 0;
-            break;
-        case AVC_Intra16AC:
-            maxNumCoeff = 15;
-            level = encvid->level[cindx];
-            run = encvid->run[cindx];
-            TotalCoeff = currMB->nz_coeff[bindx];
-            break;
-        case AVC_ChromaDC:  /* how to differentiate Cb from Cr */
-            maxNumCoeff = 4;
-            cdc = 1;
-            if (cindx >= 8)
-            {
-                level = encvid->levelcdc + 4;
-                run = encvid->runcdc + 4;
-                TotalCoeff = cindx - 8;  /* special case */
-            }
-            else
-            {
-                level = encvid->levelcdc;
-                run = encvid->runcdc;
-                TotalCoeff = cindx;  /* special case */
-            }
-            break;
-        case AVC_ChromaAC:
-            maxNumCoeff = 15;
-            cac = 1;
-            level = encvid->level[cindx];
-            run = encvid->run[cindx];
-            cindx -= 16;
-            bindx = 16 + blkIdx2blkXY[cindx>>2][cindx&3];
-            cindx += 16;
-            TotalCoeff = currMB->nz_coeff[bindx];
-            break;
-        default:
-            return AVCENC_FAIL;
-    }
-
-
-    /* find TrailingOnes */
-    TrailingOnes = 0;
-    zerosLeft = 0;
-    i = TotalCoeff - 1;
-    nC = 1;
-    while (i >= 0)
-    {
-        zerosLeft += run[i];
-        if (nC && (level[i] == 1 || level[i] == -1))
-        {
-            TrailingOnes++;
-        }
-        else
-        {
-            nC = 0;
-        }
-        i--;
-    }
-    if (TrailingOnes > 3)
-    {
-        TrailingOnes = 3; /* clip it */
-    }
-
-    if (!cdc)
-    {
-        if (!cac)  /* not chroma */
-        {
-            nC = predict_nnz(video, bindx & 3, bindx >> 2);
-        }
-        else /* chroma ac but not chroma dc */
-        {
-            nC = predict_nnz_chroma(video, bindx & 3, bindx >> 2);
-        }
-
-        status = ce_TotalCoeffTrailingOnes(stream, TrailingOnes, TotalCoeff, nC);
-    }
-    else
-    {
-        nC = -1; /* Chroma DC level */
-        status = ce_TotalCoeffTrailingOnesChromaDC(stream, TrailingOnes, TotalCoeff);
-    }
-
-    /* This part is done quite differently in ReadCoef4x4_CAVLC() */
-    if (TotalCoeff > 0)
-    {
-
-        i = TotalCoeff - 1;
-
-        if (TrailingOnes) /* keep reading the sign of those trailing ones */
-        {
-            nC = TrailingOnes;
-            trailing_ones_sign_flag = 0;
-            while (nC)
-            {
-                trailing_ones_sign_flag <<= 1;
-                trailing_ones_sign_flag |= ((uint32)level[i--] >> 31); /* 0 or positive, 1 for negative */
-                nC--;
-            }
-
-            /* instead of writing one bit at a time, read the whole thing at once */
-            status = BitstreamWriteBits(stream, TrailingOnes, trailing_ones_sign_flag);
-        }
-
-        level_two_or_higher = 1;
-        if (TotalCoeff > 3 && TrailingOnes == 3)
-        {
-            level_two_or_higher = 0;
-        }
-
-        if (TotalCoeff > 10 && TrailingOnes < 3)
-        {
-            vlcnum = 1;
-        }
-        else
-        {
-            vlcnum = 0;
-        }
-
-        /* then do this TotalCoeff-TrailingOnes times */
-        for (i = TotalCoeff - TrailingOnes - 1; i >= 0; i--)
-        {
-            value = level[i];
-            absvalue = (value >= 0) ? value : -value;
-
-            if (level_two_or_higher)
-            {
-                if (value > 0) value--;
-                else    value++;
-                level_two_or_higher = 0;
-            }
-
-            if (value >= 0)
-            {
-                sign = 0;
-            }
-            else
-            {
-                sign = 1;
-                value = -value;
-            }
-
-            if (vlcnum == 0) // VLC1
-            {
-                if (value < 8)
-                {
-                    status = BitstreamWriteBits(stream, value * 2 + sign - 1, 1);
-                }
-                else if (value < 8 + 8)
-                {
-                    status = BitstreamWriteBits(stream, 14 + 1 + 4, (1 << 4) | ((value - 8) << 1) | sign);
-                }
-                else
-                {
-                    status = BitstreamWriteBits(stream, 14 + 2 + 12, (1 << 12) | ((value - 16) << 1) | sign) ;
-                }
-            }
-            else  // VLCN
-            {
-                shift = vlcnum - 1;
-                escape = (15 << shift) + 1;
-                numPrefix = (value - 1) >> shift;
-                sufmask = ~((0xffffffff) << shift);
-                suffix = (value - 1) & sufmask;
-                if (value < escape)
-                {
-                    status = BitstreamWriteBits(stream, numPrefix + vlcnum + 1, (1 << (shift + 1)) | (suffix << 1) | sign);
-                }
-                else
-                {
-                    status = BitstreamWriteBits(stream, 28, (1 << 12) | ((value - escape) << 1) | sign);
-                }
-
-            }
-
-            if (absvalue > incVlc[vlcnum])
-                vlcnum++;
-
-            if (i == TotalCoeff - TrailingOnes - 1 && absvalue > 3)
-                vlcnum = 2;
-        }
-
-        if (status != AVCENC_SUCCESS)  /* occasionally check the bitstream */
-        {
-            return status;
-        }
-        if (TotalCoeff < maxNumCoeff)
-        {
-            if (!cdc)
-            {
-                ce_TotalZeros(stream, zerosLeft, TotalCoeff);
-            }
-            else
-            {
-                ce_TotalZerosChromaDC(stream, zerosLeft, TotalCoeff);
-            }
-        }
-        else
-        {
-            zerosLeft = 0;
-        }
-
-        i = TotalCoeff - 1;
-        while (i > 0) /* don't do the last one */
-        {
-            if (zerosLeft > 0)
-            {
-                ce_RunBefore(stream, run[i], zerosLeft);
-            }
-
-            zerosLeft = zerosLeft - run[i];
-            i--;
-        }
-    }
-
-    return status;
-}
diff --git a/media/libstagefright/codecs/avc/enc/src/sad.cpp b/media/libstagefright/codecs/avc/enc/src/sad.cpp
deleted file mode 100644
index ae7acd2..0000000
--- a/media/libstagefright/codecs/avc/enc/src/sad.cpp
+++ /dev/null
@@ -1,290 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-#include "sad_inline.h"
-
-#define Cached_lx 176
-
-#ifdef _SAD_STAT
-uint32 num_sad_MB = 0;
-uint32 num_sad_Blk = 0;
-uint32 num_sad_MB_call = 0;
-uint32 num_sad_Blk_call = 0;
-
-#define NUM_SAD_MB_CALL()       num_sad_MB_call++
-#define NUM_SAD_MB()            num_sad_MB++
-#define NUM_SAD_BLK_CALL()      num_sad_Blk_call++
-#define NUM_SAD_BLK()           num_sad_Blk++
-
-#else
-
-#define NUM_SAD_MB_CALL()
-#define NUM_SAD_MB()
-#define NUM_SAD_BLK_CALL()
-#define NUM_SAD_BLK()
-
-#endif
-
-
-/* consist of
-int AVCSAD_Macroblock_C(uint8 *ref,uint8 *blk,int dmin,int lx,void *extra_info)
-int AVCSAD_MB_HTFM_Collect(uint8 *ref,uint8 *blk,int dmin,int lx,void *extra_info)
-int AVCSAD_MB_HTFM(uint8 *ref,uint8 *blk,int dmin,int lx,void *extra_info)
-*/
-
-
-/*==================================================================
-    Function:   SAD_Macroblock
-    Date:       09/07/2000
-    Purpose:    Compute SAD 16x16 between blk and ref.
-    To do:      Uniform subsampling will be inserted later!
-                Hypothesis Testing Fast Matching to be used later!
-    Changes:
-    11/7/00:    implemented MMX
-    1/24/01:    implemented SSE
-==================================================================*/
-/********** C ************/
-int AVCSAD_Macroblock_C(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info)
-{
-    (void)(extra_info);
-
-    int32 x10;
-    int dmin = (uint32)dmin_lx >> 16;
-    int lx = dmin_lx & 0xFFFF;
-
-    NUM_SAD_MB_CALL();
-
-    x10 = simd_sad_mb(ref, blk, dmin, lx);
-
-    return x10;
-}
-
-#ifdef HTFM   /* HTFM with uniform subsampling implementation 2/28/01 */
-/*===============================================================
-    Function:   AVCAVCSAD_MB_HTFM_Collect and AVCSAD_MB_HTFM
-    Date:       3/2/1
-    Purpose:    Compute the SAD on a 16x16 block using
-                uniform subsampling and hypothesis testing fast matching
-                for early dropout. SAD_MB_HP_HTFM_Collect is to collect
-                the statistics to compute the thresholds to be used in
-                SAD_MB_HP_HTFM.
-    Input/Output:
-    Changes:
-  ===============================================================*/
-
-int AVCAVCSAD_MB_HTFM_Collect(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info)
-{
-    int i;
-    int sad = 0;
-    uint8 *p1;
-    int lx4 = (dmin_lx << 2) & 0x3FFFC;
-    uint32 cur_word;
-    int saddata[16], tmp, tmp2;    /* used when collecting flag (global) is on */
-    int difmad;
-    int madstar;
-    HTFM_Stat *htfm_stat = (HTFM_Stat*) extra_info;
-    int *abs_dif_mad_avg = &(htfm_stat->abs_dif_mad_avg);
-    uint *countbreak = &(htfm_stat->countbreak);
-    int *offsetRef = htfm_stat->offsetRef;
-
-    madstar = (uint32)dmin_lx >> 20;
-
-    NUM_SAD_MB_CALL();
-
-    blk -= 4;
-    for (i = 0; i < 16; i++)
-    {
-        p1 = ref + offsetRef[i];
-        cur_word = *((uint32*)(blk += 4));
-        tmp = p1[12];
-        tmp2 = (cur_word >> 24) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[8];
-        tmp2 = (cur_word >> 16) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[4];
-        tmp2 = (cur_word >> 8) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[0];
-        p1 += lx4;
-        tmp2 = (cur_word & 0xFF);
-        sad = SUB_SAD(sad, tmp, tmp2);
-
-        cur_word = *((uint32*)(blk += 4));
-        tmp = p1[12];
-        tmp2 = (cur_word >> 24) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[8];
-        tmp2 = (cur_word >> 16) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[4];
-        tmp2 = (cur_word >> 8) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[0];
-        p1 += lx4;
-        tmp2 = (cur_word & 0xFF);
-        sad = SUB_SAD(sad, tmp, tmp2);
-
-        cur_word = *((uint32*)(blk += 4));
-        tmp = p1[12];
-        tmp2 = (cur_word >> 24) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[8];
-        tmp2 = (cur_word >> 16) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[4];
-        tmp2 = (cur_word >> 8) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[0];
-        p1 += lx4;
-        tmp2 = (cur_word & 0xFF);
-        sad = SUB_SAD(sad, tmp, tmp2);
-
-        cur_word = *((uint32*)(blk += 4));
-        tmp = p1[12];
-        tmp2 = (cur_word >> 24) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[8];
-        tmp2 = (cur_word >> 16) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[4];
-        tmp2 = (cur_word >> 8) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[0];
-        p1 += lx4;
-        tmp2 = (cur_word & 0xFF);
-        sad = SUB_SAD(sad, tmp, tmp2);
-
-        NUM_SAD_MB();
-
-        saddata[i] = sad;
-
-        if (i > 0)
-        {
-            if ((uint32)sad > ((uint32)dmin_lx >> 16))
-            {
-                difmad = saddata[0] - ((saddata[1] + 1) >> 1);
-                (*abs_dif_mad_avg) += ((difmad > 0) ? difmad : -difmad);
-                (*countbreak)++;
-                return sad;
-            }
-        }
-    }
-
-    difmad = saddata[0] - ((saddata[1] + 1) >> 1);
-    (*abs_dif_mad_avg) += ((difmad > 0) ? difmad : -difmad);
-    (*countbreak)++;
-    return sad;
-}
-
-int AVCSAD_MB_HTFM(uint8 *ref, uint8 *blk, int dmin_lx, void *extra_info)
-{
-    int sad = 0;
-    uint8 *p1;
-
-    int i;
-    int tmp, tmp2;
-    int lx4 = (dmin_lx << 2) & 0x3FFFC;
-    int sadstar = 0, madstar;
-    int *nrmlz_th = (int*) extra_info;
-    int *offsetRef = (int*) extra_info + 32;
-    uint32 cur_word;
-
-    madstar = (uint32)dmin_lx >> 20;
-
-    NUM_SAD_MB_CALL();
-
-    blk -= 4;
-    for (i = 0; i < 16; i++)
-    {
-        p1 = ref + offsetRef[i];
-        cur_word = *((uint32*)(blk += 4));
-        tmp = p1[12];
-        tmp2 = (cur_word >> 24) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[8];
-        tmp2 = (cur_word >> 16) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[4];
-        tmp2 = (cur_word >> 8) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[0];
-        p1 += lx4;
-        tmp2 = (cur_word & 0xFF);
-        sad = SUB_SAD(sad, tmp, tmp2);
-
-        cur_word = *((uint32*)(blk += 4));
-        tmp = p1[12];
-        tmp2 = (cur_word >> 24) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[8];
-        tmp2 = (cur_word >> 16) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[4];
-        tmp2 = (cur_word >> 8) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[0];
-        p1 += lx4;
-        tmp2 = (cur_word & 0xFF);
-        sad = SUB_SAD(sad, tmp, tmp2);
-
-        cur_word = *((uint32*)(blk += 4));
-        tmp = p1[12];
-        tmp2 = (cur_word >> 24) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[8];
-        tmp2 = (cur_word >> 16) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[4];
-        tmp2 = (cur_word >> 8) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[0];
-        p1 += lx4;
-        tmp2 = (cur_word & 0xFF);
-        sad = SUB_SAD(sad, tmp, tmp2);
-
-        cur_word = *((uint32*)(blk += 4));
-        tmp = p1[12];
-        tmp2 = (cur_word >> 24) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[8];
-        tmp2 = (cur_word >> 16) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[4];
-        tmp2 = (cur_word >> 8) & 0xFF;
-        sad = SUB_SAD(sad, tmp, tmp2);
-        tmp = p1[0];
-        p1 += lx4;
-        tmp2 = (cur_word & 0xFF);
-        sad = SUB_SAD(sad, tmp, tmp2);
-
-        NUM_SAD_MB();
-
-        sadstar += madstar;
-        if (((uint32)sad <= ((uint32)dmin_lx >> 16)) && (sad <= (sadstar - *nrmlz_th++)))
-            ;
-        else
-            return 65536;
-    }
-
-    return sad;
-}
-#endif /* HTFM */
-
-
-
diff --git a/media/libstagefright/codecs/avc/enc/src/sad_halfpel.cpp b/media/libstagefright/codecs/avc/enc/src/sad_halfpel.cpp
deleted file mode 100644
index faf2198..0000000
--- a/media/libstagefright/codecs/avc/enc/src/sad_halfpel.cpp
+++ /dev/null
@@ -1,629 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-/* contains
-int AVCHalfPel1_SAD_MB(uint8 *ref,uint8 *blk,int dmin,int width,int ih,int jh)
-int AVCHalfPel2_SAD_MB(uint8 *ref,uint8 *blk,int dmin,int width)
-int AVCHalfPel1_SAD_Blk(uint8 *ref,uint8 *blk,int dmin,int width,int ih,int jh)
-int AVCHalfPel2_SAD_Blk(uint8 *ref,uint8 *blk,int dmin,int width)
-
-int AVCSAD_MB_HalfPel_C(uint8 *ref,uint8 *blk,int dmin,int width,int rx,int xh,int yh,void *extra_info)
-int AVCSAD_MB_HP_HTFM_Collect(uint8 *ref,uint8 *blk,int dmin,int width,int rx,int xh,int yh,void *extra_info)
-int AVCSAD_MB_HP_HTFM(uint8 *ref,uint8 *blk,int dmin,int width,int rx,int xh,int yh,void *extra_info)
-int AVCSAD_Blk_HalfPel_C(uint8 *ref,uint8 *blk,int dmin,int width,int rx,int xh,int yh,void *extra_info)
-*/
-
-#include "avcenc_lib.h"
-#include "sad_halfpel_inline.h"
-
-#ifdef _SAD_STAT
-uint32 num_sad_HP_MB = 0;
-uint32 num_sad_HP_Blk = 0;
-uint32 num_sad_HP_MB_call = 0;
-uint32 num_sad_HP_Blk_call = 0;
-#define NUM_SAD_HP_MB_CALL()    num_sad_HP_MB_call++
-#define NUM_SAD_HP_MB()         num_sad_HP_MB++
-#define NUM_SAD_HP_BLK_CALL()   num_sad_HP_Blk_call++
-#define NUM_SAD_HP_BLK()        num_sad_HP_Blk++
-#else
-#define NUM_SAD_HP_MB_CALL()
-#define NUM_SAD_HP_MB()
-#define NUM_SAD_HP_BLK_CALL()
-#define NUM_SAD_HP_BLK()
-#endif
-
-
-
-/*===============================================================
-    Function:   SAD_MB_HalfPel
-    Date:       09/17/2000
-    Purpose:    Compute the SAD on the half-pel resolution
-    Input/Output:   hmem is assumed to be a pointer to the starting
-                point of the search in the 33x33 matrix search region
-    Changes:
-    11/7/00:    implemented MMX
-  ===============================================================*/
-/*==================================================================
-    Function:   AVCSAD_MB_HalfPel_C
-    Date:       04/30/2001
-    Purpose:    Compute SAD 16x16 between blk and ref in halfpel
-                resolution,
-    Changes:
-  ==================================================================*/
-/* One component is half-pel */
-int AVCSAD_MB_HalfPel_Cxhyh(uint8 *ref, uint8 *blk, int dmin_rx, void *extra_info)
-{
-    (void)(extra_info);
-
-    int i, j;
-    int sad = 0;
-    uint8 *kk, *p1, *p2, *p3, *p4;
-//  int sumref=0;
-    int temp;
-    int rx = dmin_rx & 0xFFFF;
-
-    NUM_SAD_HP_MB_CALL();
-
-    p1 = ref;
-    p2 = ref + 1;
-    p3 = ref + rx;
-    p4 = ref + rx + 1;
-    kk  = blk;
-
-    for (i = 0; i < 16; i++)
-    {
-        for (j = 0; j < 16; j++)
-        {
-
-            temp = ((p1[j] + p2[j] + p3[j] + p4[j] + 2) >> 2) - *kk++;
-            sad += AVC_ABS(temp);
-        }
-
-        NUM_SAD_HP_MB();
-
-        if (sad > (int)((uint32)dmin_rx >> 16))
-            return sad;
-
-        p1 += rx;
-        p3 += rx;
-        p2 += rx;
-        p4 += rx;
-    }
-    return sad;
-}
-
-int AVCSAD_MB_HalfPel_Cyh(uint8 *ref, uint8 *blk, int dmin_rx, void *extra_info)
-{
-    (void)(extra_info);
-
-    int i, j;
-    int sad = 0;
-    uint8 *kk, *p1, *p2;
-//  int sumref=0;
-    int temp;
-    int rx = dmin_rx & 0xFFFF;
-
-    NUM_SAD_HP_MB_CALL();
-
-    p1 = ref;
-    p2 = ref + rx; /* either left/right or top/bottom pixel */
-    kk  = blk;
-
-    for (i = 0; i < 16; i++)
-    {
-        for (j = 0; j < 16; j++)
-        {
-
-            temp = ((p1[j] + p2[j] + 1) >> 1) - *kk++;
-            sad += AVC_ABS(temp);
-        }
-
-        NUM_SAD_HP_MB();
-
-        if (sad > (int)((uint32)dmin_rx >> 16))
-            return sad;
-        p1 += rx;
-        p2 += rx;
-    }
-    return sad;
-}
-
-int AVCSAD_MB_HalfPel_Cxh(uint8 *ref, uint8 *blk, int dmin_rx, void *extra_info)
-{
-    (void)(extra_info);
-
-    int i, j;
-    int sad = 0;
-    uint8 *kk, *p1;
-    int temp;
-    int rx = dmin_rx & 0xFFFF;
-
-    NUM_SAD_HP_MB_CALL();
-
-    p1 = ref;
-    kk  = blk;
-
-    for (i = 0; i < 16; i++)
-    {
-        for (j = 0; j < 16; j++)
-        {
-
-            temp = ((p1[j] + p1[j+1] + 1) >> 1) - *kk++;
-            sad += AVC_ABS(temp);
-        }
-
-        NUM_SAD_HP_MB();
-
-        if (sad > (int)((uint32)dmin_rx >> 16))
-            return sad;
-        p1 += rx;
-    }
-    return sad;
-}
-
-#ifdef HTFM  /* HTFM with uniform subsampling implementation,  2/28/01 */
-
-//Checheck here
-int AVCAVCSAD_MB_HP_HTFM_Collectxhyh(uint8 *ref, uint8 *blk, int dmin_rx, void *extra_info)
-{
-    int i, j;
-    int sad = 0;
-    uint8 *p1, *p2;
-    int rx = dmin_rx & 0xFFFF;
-    int refwx4 = rx << 2;
-    int saddata[16];      /* used when collecting flag (global) is on */
-    int difmad, tmp, tmp2;
-    int madstar;
-    HTFM_Stat *htfm_stat = (HTFM_Stat*) extra_info;
-    int *abs_dif_mad_avg = &(htfm_stat->abs_dif_mad_avg);
-    UInt *countbreak = &(htfm_stat->countbreak);
-    int *offsetRef = htfm_stat->offsetRef;
-    uint32 cur_word;
-
-    madstar = (uint32)dmin_rx >> 20;
-
-    NUM_SAD_HP_MB_CALL();
-
-    blk -= 4;
-
-    for (i = 0; i < 16; i++) /* 16 stages */
-    {
-        p1 = ref + offsetRef[i];
-        p2 = p1 + rx;
-
-        j = 4;/* 4 lines */
-        do
-        {
-            cur_word = *((uint32*)(blk += 4));
-            tmp = p1[12] + p2[12];
-            tmp2 = p1[13] + p2[13];
-            tmp += tmp2;
-            tmp2 = (cur_word >> 24) & 0xFF;
-            tmp += 2;
-            sad = INTERP2_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[8] + p2[8];
-            tmp2 = p1[9] + p2[9];
-            tmp += tmp2;
-            tmp2 = (cur_word >> 16) & 0xFF;
-            tmp += 2;
-            sad = INTERP2_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[4] + p2[4];
-            tmp2 = p1[5] + p2[5];
-            tmp += tmp2;
-            tmp2 = (cur_word >> 8) & 0xFF;
-            tmp += 2;
-            sad = INTERP2_SUB_SAD(sad, tmp, tmp2);;
-            tmp2 = p1[1] + p2[1];
-            tmp = p1[0] + p2[0];
-            p1 += refwx4;
-            p2 += refwx4;
-            tmp += tmp2;
-            tmp2 = (cur_word & 0xFF);
-            tmp += 2;
-            sad = INTERP2_SUB_SAD(sad, tmp, tmp2);;
-        }
-        while (--j);
-
-        NUM_SAD_HP_MB();
-
-        saddata[i] = sad;
-
-        if (i > 0)
-        {
-            if (sad > ((uint32)dmin_rx >> 16))
-            {
-                difmad = saddata[0] - ((saddata[1] + 1) >> 1);
-                (*abs_dif_mad_avg) += ((difmad > 0) ? difmad : -difmad);
-                (*countbreak)++;
-                return sad;
-            }
-        }
-    }
-    difmad = saddata[0] - ((saddata[1] + 1) >> 1);
-    (*abs_dif_mad_avg) += ((difmad > 0) ? difmad : -difmad);
-    (*countbreak)++;
-
-    return sad;
-}
-
-int AVCAVCSAD_MB_HP_HTFM_Collectyh(uint8 *ref, uint8 *blk, int dmin_rx, void *extra_info)
-{
-    int i, j;
-    int sad = 0;
-    uint8 *p1, *p2;
-    int rx = dmin_rx & 0xFFFF;
-    int refwx4 = rx << 2;
-    int saddata[16];      /* used when collecting flag (global) is on */
-    int difmad, tmp, tmp2;
-    int madstar;
-    HTFM_Stat *htfm_stat = (HTFM_Stat*) extra_info;
-    int *abs_dif_mad_avg = &(htfm_stat->abs_dif_mad_avg);
-    UInt *countbreak = &(htfm_stat->countbreak);
-    int *offsetRef = htfm_stat->offsetRef;
-    uint32 cur_word;
-
-    madstar = (uint32)dmin_rx >> 20;
-
-    NUM_SAD_HP_MB_CALL();
-
-    blk -= 4;
-
-    for (i = 0; i < 16; i++) /* 16 stages */
-    {
-        p1 = ref + offsetRef[i];
-        p2 = p1 + rx;
-        j = 4;
-        do
-        {
-            cur_word = *((uint32*)(blk += 4));
-            tmp = p1[12];
-            tmp2 = p2[12];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 24) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[8];
-            tmp2 = p2[8];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 16) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[4];
-            tmp2 = p2[4];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 8) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[0];
-            p1 += refwx4;
-            tmp2 = p2[0];
-            p2 += refwx4;
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word & 0xFF);
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-        }
-        while (--j);
-
-        NUM_SAD_HP_MB();
-
-        saddata[i] = sad;
-
-        if (i > 0)
-        {
-            if (sad > ((uint32)dmin_rx >> 16))
-            {
-                difmad = saddata[0] - ((saddata[1] + 1) >> 1);
-                (*abs_dif_mad_avg) += ((difmad > 0) ? difmad : -difmad);
-                (*countbreak)++;
-                return sad;
-            }
-        }
-    }
-    difmad = saddata[0] - ((saddata[1] + 1) >> 1);
-    (*abs_dif_mad_avg) += ((difmad > 0) ? difmad : -difmad);
-    (*countbreak)++;
-
-    return sad;
-}
-
-int AVCAVCSAD_MB_HP_HTFM_Collectxh(uint8 *ref, uint8 *blk, int dmin_rx, void *extra_info)
-{
-    int i, j;
-    int sad = 0;
-    uint8 *p1;
-    int rx = dmin_rx & 0xFFFF;
-    int refwx4 = rx << 2;
-    int saddata[16];      /* used when collecting flag (global) is on */
-    int difmad, tmp, tmp2;
-    int madstar;
-    HTFM_Stat *htfm_stat = (HTFM_Stat*) extra_info;
-    int *abs_dif_mad_avg = &(htfm_stat->abs_dif_mad_avg);
-    UInt *countbreak = &(htfm_stat->countbreak);
-    int *offsetRef = htfm_stat->offsetRef;
-    uint32 cur_word;
-
-    madstar = (uint32)dmin_rx >> 20;
-
-    NUM_SAD_HP_MB_CALL();
-
-    blk -= 4;
-
-    for (i = 0; i < 16; i++) /* 16 stages */
-    {
-        p1 = ref + offsetRef[i];
-
-        j = 4; /* 4 lines */
-        do
-        {
-            cur_word = *((uint32*)(blk += 4));
-            tmp = p1[12];
-            tmp2 = p1[13];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 24) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[8];
-            tmp2 = p1[9];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 16) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[4];
-            tmp2 = p1[5];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 8) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[0];
-            tmp2 = p1[1];
-            p1 += refwx4;
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word & 0xFF);
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-        }
-        while (--j);
-
-        NUM_SAD_HP_MB();
-
-        saddata[i] = sad;
-
-        if (i > 0)
-        {
-            if (sad > ((uint32)dmin_rx >> 16))
-            {
-                difmad = saddata[0] - ((saddata[1] + 1) >> 1);
-                (*abs_dif_mad_avg) += ((difmad > 0) ? difmad : -difmad);
-                (*countbreak)++;
-                return sad;
-            }
-        }
-    }
-    difmad = saddata[0] - ((saddata[1] + 1) >> 1);
-    (*abs_dif_mad_avg) += ((difmad > 0) ? difmad : -difmad);
-    (*countbreak)++;
-
-    return sad;
-}
-
-int AVCSAD_MB_HP_HTFMxhyh(uint8 *ref, uint8 *blk, int dmin_rx, void *extra_info)
-{
-    int i, j;
-    int sad = 0, tmp, tmp2;
-    uint8 *p1, *p2;
-    int rx = dmin_rx & 0xFFFF;
-    int refwx4 = rx << 2;
-    int sadstar = 0, madstar;
-    int *nrmlz_th = (int*) extra_info;
-    int *offsetRef = nrmlz_th + 32;
-    uint32 cur_word;
-
-    madstar = (uint32)dmin_rx >> 20;
-
-    NUM_SAD_HP_MB_CALL();
-
-    blk -= 4;
-
-    for (i = 0; i < 16; i++) /* 16 stages */
-    {
-        p1 = ref + offsetRef[i];
-        p2 = p1 + rx;
-
-        j = 4; /* 4 lines */
-        do
-        {
-            cur_word = *((uint32*)(blk += 4));
-            tmp = p1[12] + p2[12];
-            tmp2 = p1[13] + p2[13];
-            tmp += tmp2;
-            tmp2 = (cur_word >> 24) & 0xFF;
-            tmp += 2;
-            sad = INTERP2_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[8] + p2[8];
-            tmp2 = p1[9] + p2[9];
-            tmp += tmp2;
-            tmp2 = (cur_word >> 16) & 0xFF;
-            tmp += 2;
-            sad = INTERP2_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[4] + p2[4];
-            tmp2 = p1[5] + p2[5];
-            tmp += tmp2;
-            tmp2 = (cur_word >> 8) & 0xFF;
-            tmp += 2;
-            sad = INTERP2_SUB_SAD(sad, tmp, tmp2);;
-            tmp2 = p1[1] + p2[1];
-            tmp = p1[0] + p2[0];
-            p1 += refwx4;
-            p2 += refwx4;
-            tmp += tmp2;
-            tmp2 = (cur_word & 0xFF);
-            tmp += 2;
-            sad = INTERP2_SUB_SAD(sad, tmp, tmp2);;
-        }
-        while (--j);
-
-        NUM_SAD_HP_MB();
-
-        sadstar += madstar;
-        if (sad > sadstar - nrmlz_th[i] || sad > ((uint32)dmin_rx >> 16))
-        {
-            return 65536;
-        }
-    }
-
-    return sad;
-}
-
-int AVCSAD_MB_HP_HTFMyh(uint8 *ref, uint8 *blk, int dmin_rx, void *extra_info)
-{
-    int i, j;
-    int sad = 0, tmp, tmp2;
-    uint8 *p1, *p2;
-    int rx = dmin_rx & 0xFFFF;
-    int refwx4 = rx << 2;
-    int sadstar = 0, madstar;
-    int *nrmlz_th = (int*) extra_info;
-    int *offsetRef = nrmlz_th + 32;
-    uint32 cur_word;
-
-    madstar = (uint32)dmin_rx >> 20;
-
-    NUM_SAD_HP_MB_CALL();
-
-    blk -= 4;
-
-    for (i = 0; i < 16; i++) /* 16 stages */
-    {
-        p1 = ref + offsetRef[i];
-        p2 = p1 + rx;
-        j = 4;
-        do
-        {
-            cur_word = *((uint32*)(blk += 4));
-            tmp = p1[12];
-            tmp2 = p2[12];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 24) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[8];
-            tmp2 = p2[8];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 16) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[4];
-            tmp2 = p2[4];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 8) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[0];
-            p1 += refwx4;
-            tmp2 = p2[0];
-            p2 += refwx4;
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word & 0xFF);
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-        }
-        while (--j);
-
-        NUM_SAD_HP_MB();
-        sadstar += madstar;
-        if (sad > sadstar - nrmlz_th[i] || sad > ((uint32)dmin_rx >> 16))
-        {
-            return 65536;
-        }
-    }
-
-    return sad;
-}
-
-int AVCSAD_MB_HP_HTFMxh(uint8 *ref, uint8 *blk, int dmin_rx, void *extra_info)
-{
-    int i, j;
-    int sad = 0, tmp, tmp2;
-    uint8 *p1;
-    int rx = dmin_rx & 0xFFFF;
-    int refwx4 = rx << 2;
-    int sadstar = 0, madstar;
-    int *nrmlz_th = (int*) extra_info;
-    int *offsetRef = nrmlz_th + 32;
-    uint32 cur_word;
-
-    madstar = (uint32)dmin_rx >> 20;
-
-    NUM_SAD_HP_MB_CALL();
-
-    blk -= 4;
-
-    for (i = 0; i < 16; i++) /* 16 stages */
-    {
-        p1 = ref + offsetRef[i];
-
-        j = 4;/* 4 lines */
-        do
-        {
-            cur_word = *((uint32*)(blk += 4));
-            tmp = p1[12];
-            tmp2 = p1[13];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 24) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[8];
-            tmp2 = p1[9];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 16) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[4];
-            tmp2 = p1[5];
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word >> 8) & 0xFF;
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-            tmp = p1[0];
-            tmp2 = p1[1];
-            p1 += refwx4;
-            tmp++;
-            tmp2 += tmp;
-            tmp = (cur_word & 0xFF);
-            sad = INTERP1_SUB_SAD(sad, tmp, tmp2);;
-        }
-        while (--j);
-
-        NUM_SAD_HP_MB();
-
-        sadstar += madstar;
-        if (sad > sadstar - nrmlz_th[i] || sad > ((uint32)dmin_rx >> 16))
-        {
-            return 65536;
-        }
-    }
-
-    return sad;
-}
-
-#endif /* HTFM */
-
-
-
-
-
diff --git a/media/libstagefright/codecs/avc/enc/src/sad_halfpel_inline.h b/media/libstagefright/codecs/avc/enc/src/sad_halfpel_inline.h
deleted file mode 100644
index 22f545a..0000000
--- a/media/libstagefright/codecs/avc/enc/src/sad_halfpel_inline.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-
-#ifndef _SAD_HALFPEL_INLINE_H_
-#define _SAD_HALFPEL_INLINE_H_
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/* Intentionally not using the gcc asm version, since it is
- * slightly slower than the plain C version on modern GCC versions. */
-#if !defined(__CC_ARM) /* Generic C version */
-
-    __inline int32 INTERP1_SUB_SAD(int32 sad, int32 tmp, int32 tmp2)
-    {
-        tmp = (tmp2 >> 1) - tmp;
-        if (tmp > 0) sad += tmp;
-        else sad -= tmp;
-
-        return sad;
-    }
-
-    __inline int32 INTERP2_SUB_SAD(int32 sad, int32 tmp, int32 tmp2)
-    {
-        tmp = (tmp >> 2) - tmp2;
-        if (tmp > 0) sad += tmp;
-        else sad -= tmp;
-
-        return sad;
-    }
-
-#elif defined(__CC_ARM)  /* only work with arm v5 */
-
-    __inline int32 INTERP1_SUB_SAD(int32 sad, int32 tmp, int32 tmp2)
-    {
-        __asm
-        {
-            rsbs    tmp, tmp, tmp2, asr #1 ;
-            rsbmi   tmp, tmp, #0 ;
-            add     sad, sad, tmp ;
-        }
-
-        return sad;
-    }
-
-    __inline int32 INTERP2_SUB_SAD(int32 sad, int32 tmp, int32 tmp2)
-    {
-        __asm
-        {
-            rsbs    tmp, tmp2, tmp, asr #2 ;
-            rsbmi   tmp, tmp, #0 ;
-            add     sad, sad, tmp ;
-        }
-
-        return sad;
-    }
-
-#elif defined(__GNUC__) && defined(__arm__) /* ARM GNU COMPILER  */
-
-    __inline int32 INTERP1_SUB_SAD(int32 sad, int32 tmp, int32 tmp2)
-    {
-        __asm__ volatile(
-            "rsbs       %1, %1, %2, asr #1\n\t"
-            "rsbmi      %1, %1, #0\n\t"
-            "add        %0, %0, %1"
-            : "+r"(sad), "+r"(tmp)
-            : "r"(tmp2)
-        );
-
-        return sad;
-    }
-
-    __inline int32 INTERP2_SUB_SAD(int32 sad, int32 tmp, int32 tmp2)
-    {
-        __asm__ volatile(
-            "rsbs       %1, %2, %1, asr #2\n\t"
-            "rsbmi      %1, %1, #0\n\t"
-            "add        %0, %0, %1"
-            : "+r"(sad), "+r"(tmp)
-            : "r"(tmp2)
-        );
-
-        return sad;
-    }
-
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif //_SAD_HALFPEL_INLINE_H_
-
diff --git a/media/libstagefright/codecs/avc/enc/src/sad_inline.h b/media/libstagefright/codecs/avc/enc/src/sad_inline.h
deleted file mode 100644
index 47abc65..0000000
--- a/media/libstagefright/codecs/avc/enc/src/sad_inline.h
+++ /dev/null
@@ -1,526 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#ifndef _SAD_INLINE_H_
-#define _SAD_INLINE_H_
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/* Intentionally not using the gcc asm version, since it is
- * slightly slower than the plain C version on modern GCC versions. */
-#if !defined(__CC_ARM) /* Generic C version */
-
-    __inline int32 SUB_SAD(int32 sad, int32 tmp, int32 tmp2)
-    {
-        tmp = tmp - tmp2;
-        if (tmp > 0) sad += tmp;
-        else sad -= tmp;
-
-        return sad;
-    }
-
-    __inline int32 sad_4pixel(int32 src1, int32 src2, int32 mask)
-    {
-        int32 x7;
-
-        x7 = src2 ^ src1;       /* check odd/even combination */
-        if ((uint32)src2 >= (uint32)src1)
-        {
-            src1 = src2 - src1;     /* subs */
-        }
-        else
-        {
-            src1 = src1 - src2;
-        }
-        x7 = x7 ^ src1;     /* only odd bytes need to add carry */
-        x7 = mask & ((uint32)x7 >> 1);
-        x7 = (x7 << 8) - x7;
-        src1 = src1 + (x7 >> 7); /* add 0xFF to the negative byte, add back carry */
-        src1 = src1 ^(x7 >> 7);   /* take absolute value of negative byte */
-
-        return src1;
-    }
-
-#define NUMBER 3
-#define SHIFT 24
-
-#include "sad_mb_offset.h"
-
-#undef NUMBER
-#define NUMBER 2
-#undef SHIFT
-#define SHIFT 16
-#include "sad_mb_offset.h"
-
-#undef NUMBER
-#define NUMBER 1
-#undef SHIFT
-#define SHIFT 8
-#include "sad_mb_offset.h"
-
-
-    __inline int32 simd_sad_mb(uint8 *ref, uint8 *blk, int dmin, int lx)
-    {
-        int32 x4, x5, x6, x8, x9, x10, x11, x12, x14;
-
-        x9 = 0x80808080; /* const. */
-
-        x8 = (intptr_t)ref & 0x3;
-        if (x8 == 3)
-            goto SadMBOffset3;
-        if (x8 == 2)
-            goto SadMBOffset2;
-        if (x8 == 1)
-            goto SadMBOffset1;
-
-//  x5 = (x4<<8)-x4; /* x5 = x4*255; */
-        x4 = x5 = 0;
-
-        x6 = 0xFFFF00FF;
-
-        ref -= lx;
-        blk -= 16;
-
-        x8 = 16;
-
-LOOP_SAD0:
-        /****** process 8 pixels ******/
-        x10 = *((uint32*)(ref += lx));
-        x11 = *((uint32*)(ref + 4));
-        x12 = *((uint32*)(blk += 16));
-        x14 = *((uint32*)(blk + 4));
-
-        /* process x11 & x14 */
-        x11 = sad_4pixel(x11, x14, x9);
-
-        /* process x12 & x10 */
-        x10 = sad_4pixel(x10, x12, x9);
-
-        x5 = x5 + x10; /* accumulate low bytes */
-        x10 = x10 & (x6 << 8); /* x10 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x10 >> 8);  /* accumulate high bytes */
-        x5 = x5 + x11;  /* accumulate low bytes */
-        x11 = x11 & (x6 << 8); /* x11 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x11 >> 8);  /* accumulate high bytes */
-
-        /****** process 8 pixels ******/
-        x10 = *((uint32*)(ref + 8));
-        x11 = *((uint32*)(ref + 12));
-        x12 = *((uint32*)(blk + 8));
-        x14 = *((uint32*)(blk + 12));
-
-        /* process x11 & x14 */
-        x11 = sad_4pixel(x11, x14, x9);
-
-        /* process x12 & x10 */
-        x10 = sad_4pixel(x10, x12, x9);
-
-        x5 = x5 + x10;  /* accumulate low bytes */
-        x10 = x10 & (x6 << 8); /* x10 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x10 >> 8); /* accumulate high bytes */
-        x5 = x5 + x11;  /* accumulate low bytes */
-        x11 = x11 & (x6 << 8); /* x11 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x11 >> 8);  /* accumulate high bytes */
-
-        /****************/
-        x10 = x5 - (x4 << 8); /* extract low bytes */
-        x10 = x10 + x4;     /* add with high bytes */
-        x10 = x10 + (x10 << 16); /* add with lower half word */
-
-        if ((int)((uint32)x10 >> 16) <= dmin) /* compare with dmin */
-        {
-            if (--x8)
-            {
-                goto LOOP_SAD0;
-            }
-
-        }
-
-        return ((uint32)x10 >> 16);
-
-SadMBOffset3:
-
-        return sad_mb_offset3(ref, blk, lx, dmin);
-
-SadMBOffset2:
-
-        return sad_mb_offset2(ref, blk, lx, dmin);
-
-SadMBOffset1:
-
-        return sad_mb_offset1(ref, blk, lx, dmin);
-
-    }
-
-#elif defined(__CC_ARM)  /* only work with arm v5 */
-
-    __inline int32 SUB_SAD(int32 sad, int32 tmp, int32 tmp2)
-    {
-        __asm
-        {
-            rsbs    tmp, tmp, tmp2 ;
-            rsbmi   tmp, tmp, #0 ;
-            add     sad, sad, tmp ;
-        }
-
-        return sad;
-    }
-
-    __inline int32 sad_4pixel(int32 src1, int32 src2, int32 mask)
-    {
-        int32 x7;
-
-        __asm
-        {
-            EOR     x7, src2, src1;     /* check odd/even combination */
-            SUBS    src1, src2, src1;
-            EOR     x7, x7, src1;
-            AND     x7, mask, x7, lsr #1;
-            ORRCC   x7, x7, #0x80000000;
-            RSB     x7, x7, x7, lsl #8;
-            ADD     src1, src1, x7, asr #7;   /* add 0xFF to the negative byte, add back carry */
-            EOR     src1, src1, x7, asr #7;   /* take absolute value of negative byte */
-        }
-
-        return src1;
-    }
-
-    __inline int32 sad_4pixelN(int32 src1, int32 src2, int32 mask)
-    {
-        int32 x7;
-
-        __asm
-        {
-            EOR      x7, src2, src1;        /* check odd/even combination */
-            ADDS     src1, src2, src1;
-            EOR      x7, x7, src1;      /* only odd bytes need to add carry */
-            ANDS     x7, mask, x7, rrx;
-            RSB      x7, x7, x7, lsl #8;
-            SUB      src1, src1, x7, asr #7;  /* add 0xFF to the negative byte, add back carry */
-            EOR      src1, src1, x7, asr #7; /* take absolute value of negative byte */
-        }
-
-        return src1;
-    }
-
-#define sum_accumulate  __asm{      SBC      x5, x5, x10;  /* accumulate low bytes */ \
-        BIC      x10, x6, x10;   /* x10 & 0xFF00FF00 */ \
-        ADD      x4, x4, x10,lsr #8;   /* accumulate high bytes */ \
-        SBC      x5, x5, x11;    /* accumulate low bytes */ \
-        BIC      x11, x6, x11;   /* x11 & 0xFF00FF00 */ \
-        ADD      x4, x4, x11,lsr #8; } /* accumulate high bytes */
-
-
-#define NUMBER 3
-#define SHIFT 24
-#define INC_X8 0x08000001
-
-#include "sad_mb_offset.h"
-
-#undef NUMBER
-#define NUMBER 2
-#undef SHIFT
-#define SHIFT 16
-#undef INC_X8
-#define INC_X8 0x10000001
-#include "sad_mb_offset.h"
-
-#undef NUMBER
-#define NUMBER 1
-#undef SHIFT
-#define SHIFT 8
-#undef INC_X8
-#define INC_X8 0x08000001
-#include "sad_mb_offset.h"
-
-
-    __inline int32 simd_sad_mb(uint8 *ref, uint8 *blk, int dmin, int lx)
-    {
-        int32 x4, x5, x6, x8, x9, x10, x11, x12, x14;
-
-        x9 = 0x80808080; /* const. */
-        x4 = x5 = 0;
-
-        __asm
-        {
-            MOVS    x8, ref, lsl #31 ;
-            BHI     SadMBOffset3;
-            BCS     SadMBOffset2;
-            BMI     SadMBOffset1;
-
-            MVN     x6, #0xFF00;
-        }
-LOOP_SAD0:
-        /****** process 8 pixels ******/
-        x11 = *((int32*)(ref + 12));
-        x10 = *((int32*)(ref + 8));
-        x14 = *((int32*)(blk + 12));
-        x12 = *((int32*)(blk + 8));
-
-        /* process x11 & x14 */
-        x11 = sad_4pixel(x11, x14, x9);
-
-        /* process x12 & x10 */
-        x10 = sad_4pixel(x10, x12, x9);
-
-        x5 = x5 + x10;  /* accumulate low bytes */
-        x10 = x10 & (x6 << 8); /* x10 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x10 >> 8); /* accumulate high bytes */
-        x5 = x5 + x11;  /* accumulate low bytes */
-        x11 = x11 & (x6 << 8); /* x11 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x11 >> 8);  /* accumulate high bytes */
-
-        __asm
-        {
-            /****** process 8 pixels ******/
-            LDR     x11, [ref, #4];
-            LDR     x10, [ref], lx ;
-            LDR     x14, [blk, #4];
-            LDR     x12, [blk], #16 ;
-        }
-
-        /* process x11 & x14 */
-        x11 = sad_4pixel(x11, x14, x9);
-
-        /* process x12 & x10 */
-        x10 = sad_4pixel(x10, x12, x9);
-
-        x5 = x5 + x10;  /* accumulate low bytes */
-        x10 = x10 & (x6 << 8); /* x10 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x10 >> 8); /* accumulate high bytes */
-        x5 = x5 + x11;  /* accumulate low bytes */
-        x11 = x11 & (x6 << 8); /* x11 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x11 >> 8);  /* accumulate high bytes */
-
-        /****************/
-        x10 = x5 - (x4 << 8); /* extract low bytes */
-        x10 = x10 + x4;     /* add with high bytes */
-        x10 = x10 + (x10 << 16); /* add with lower half word */
-
-        __asm
-        {
-            /****************/
-            RSBS    x11, dmin, x10, lsr #16;
-            ADDLSS  x8, x8, #0x10000001;
-            BLS     LOOP_SAD0;
-        }
-
-        return ((uint32)x10 >> 16);
-
-SadMBOffset3:
-
-        return sad_mb_offset3(ref, blk, lx, dmin, x8);
-
-SadMBOffset2:
-
-        return sad_mb_offset2(ref, blk, lx, dmin, x8);
-
-SadMBOffset1:
-
-        return sad_mb_offset1(ref, blk, lx, dmin, x8);
-    }
-
-
-#elif defined(__GNUC__) && defined(__arm__) /* ARM GNU COMPILER  */
-
-    __inline int32 SUB_SAD(int32 sad, int32 tmp, int32 tmp2)
-    {
-        __asm__ volatile(
-            "rsbs       %1, %1, %2\n\t"
-            "rsbmi      %1, %1, #0\n\t"
-            "add        %0, %0, %1"
-            : "+r"(sad), "+r"(tmp)
-            : "r"(tmp2)
-        );
-        return sad;
-    }
-
-    __inline int32 sad_4pixel(int32 src1, int32 src2, int32 mask)
-    {
-        int32 x7;
-
-        __asm__ volatile(
-            "EOR        %1, %2, %0\n\t"
-            "SUBS       %0, %2, %0\n\t"
-            "EOR        %1, %1, %0\n\t"
-            "AND        %1, %3, %1, lsr #1\n\t"
-            "ORRCC      %1, %1, #0x80000000\n\t"
-            "RSB        %1, %1, %1, lsl #8\n\t"
-            "ADD        %0, %0, %1, asr #7\n\t"
-            "EOR        %0, %0, %1, asr #7"
-            : "+r"(src1), "=&r"(x7)
-            : "r"(src2), "r"(mask)
-        );
-
-        return src1;
-    }
-
-    __inline int32 sad_4pixelN(int32 src1, int32 src2, int32 mask)
-    {
-        int32 x7;
-
-        __asm__ volatile(
-            "EOR        %1, %2, %0\n\t"
-            "ADDS       %0, %2, %0\n\t"
-            "EOR        %1, %1, %0\n\t"
-            "ANDS       %1, %3, %1, rrx\n\t"
-            "RSB        %1, %1, %1, lsl #8\n\t"
-            "SUB        %0, %0, %1, asr #7\n\t"
-            "EOR        %0, %0, %1, asr #7"
-            : "+r"(src1), "=&r"(x7)
-            : "r"(src2), "r"(mask)
-        );
-
-        return src1;
-    }
-
-#define sum_accumulate  __asm__ volatile(              \
-    "SBC   %0, %0, %1\n\t"                             \
-    "BIC   %1, %4, %1\n\t"                             \
-    "ADD   %2, %2, %1, lsr #8\n\t"                     \
-    "SBC   %0, %0, %3\n\t"                             \
-    "BIC   %3, %4, %3\n\t"                             \
-    "ADD   %2, %2, %3, lsr #8"                         \
-    : "+r" (x5), "+r" (x10), "+r" (x4), "+r" (x11)     \
-    : "r" (x6)                                         \
-    );
-
-#define NUMBER 3
-#define SHIFT 24
-#define INC_X8 0x08000001
-
-#include "sad_mb_offset.h"
-
-#undef NUMBER
-#define NUMBER 2
-#undef SHIFT
-#define SHIFT 16
-#undef INC_X8
-#define INC_X8 0x10000001
-#include "sad_mb_offset.h"
-
-#undef NUMBER
-#define NUMBER 1
-#undef SHIFT
-#define SHIFT 8
-#undef INC_X8
-#define INC_X8 0x08000001
-#include "sad_mb_offset.h"
-
-
-    __inline int32 simd_sad_mb(uint8 *ref, uint8 *blk, int dmin, int lx)
-    {
-        int32 x4, x5, x6, x8, x9, x10, x11, x12, x14;
-
-        x9 = 0x80808080; /* const. */
-        x4 = x5 = 0;
-
-        x8 = (uint32)ref & 0x3;
-        if (x8 == 3)
-            goto SadMBOffset3;
-        if (x8 == 2)
-            goto SadMBOffset2;
-        if (x8 == 1)
-            goto SadMBOffset1;
-
-        x8 = 16;
-///
-        __asm__ volatile("MVN   %0, #0xFF00": "=r"(x6));
-
-LOOP_SAD0:
-        /****** process 8 pixels ******/
-        x11 = *((int32*)(ref + 12));
-        x10 = *((int32*)(ref + 8));
-        x14 = *((int32*)(blk + 12));
-        x12 = *((int32*)(blk + 8));
-
-        /* process x11 & x14 */
-        x11 = sad_4pixel(x11, x14, x9);
-
-        /* process x12 & x10 */
-        x10 = sad_4pixel(x10, x12, x9);
-
-        x5 = x5 + x10;  /* accumulate low bytes */
-        x10 = x10 & (x6 << 8); /* x10 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x10 >> 8); /* accumulate high bytes */
-        x5 = x5 + x11;  /* accumulate low bytes */
-        x11 = x11 & (x6 << 8); /* x11 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x11 >> 8);  /* accumulate high bytes */
-
-        /****** process 8 pixels ******/
-        x11 = *((int32*)(ref + 4));
-        __asm__ volatile("LDR   %0, [%1], %2": "=&r"(x10), "+r"(ref): "r"(lx));
-        //x10 = *((int32*)ref); ref+=lx;
-        x14 = *((int32*)(blk + 4));
-        __asm__ volatile("LDR   %0, [%1], #16": "=&r"(x12), "+r"(blk));
-
-        /* process x11 & x14 */
-        x11 = sad_4pixel(x11, x14, x9);
-
-        /* process x12 & x10 */
-        x10 = sad_4pixel(x10, x12, x9);
-
-        x5 = x5 + x10;  /* accumulate low bytes */
-        x10 = x10 & (x6 << 8); /* x10 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x10 >> 8); /* accumulate high bytes */
-        x5 = x5 + x11;  /* accumulate low bytes */
-        x11 = x11 & (x6 << 8); /* x11 & 0xFF00FF00 */
-        x4 = x4 + ((uint32)x11 >> 8);  /* accumulate high bytes */
-
-        /****************/
-        x10 = x5 - (x4 << 8); /* extract low bytes */
-        x10 = x10 + x4;     /* add with high bytes */
-        x10 = x10 + (x10 << 16); /* add with lower half word */
-
-        /****************/
-
-        if (((uint32)x10 >> 16) <= dmin) /* compare with dmin */
-        {
-            if (--x8)
-            {
-                goto LOOP_SAD0;
-            }
-
-        }
-
-        return ((uint32)x10 >> 16);
-
-SadMBOffset3:
-
-        return sad_mb_offset3(ref, blk, lx, dmin);
-
-SadMBOffset2:
-
-        return sad_mb_offset2(ref, blk, lx, dmin);
-
-SadMBOffset1:
-
-        return sad_mb_offset1(ref, blk, lx, dmin);
-    }
-
-
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // _SAD_INLINE_H_
-
diff --git a/media/libstagefright/codecs/avc/enc/src/sad_mb_offset.h b/media/libstagefright/codecs/avc/enc/src/sad_mb_offset.h
deleted file mode 100644
index 20ca7eb..0000000
--- a/media/libstagefright/codecs/avc/enc/src/sad_mb_offset.h
+++ /dev/null
@@ -1,355 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-
-/* Intentionally not using the gcc asm version, since it is
- * slightly slower than the plain C version on modern GCC versions. */
-#if !defined(__CC_ARM) /* Generic C version */
-
-#if (NUMBER==3)
-__inline int32 sad_mb_offset3(uint8 *ref, uint8 *blk, int lx, int dmin)
-#elif (NUMBER==2)
-__inline int32 sad_mb_offset2(uint8 *ref, uint8 *blk, int lx, int dmin)
-#elif (NUMBER==1)
-__inline int32 sad_mb_offset1(uint8 *ref, uint8 *blk, int lx, int dmin)
-#endif
-{
-    int32 x4, x5, x6, x8, x9, x10, x11, x12, x14;
-
-    //  x5 = (x4<<8) - x4;
-    x4 = x5 = 0;
-    x6 = 0xFFFF00FF;
-    x9 = 0x80808080; /* const. */
-    ref -= NUMBER; /* bic ref, ref, #3 */
-    ref -= lx;
-    blk -= 16;
-    x8 = 16;
-
-#if (NUMBER==3)
-LOOP_SAD3:
-#elif (NUMBER==2)
-LOOP_SAD2:
-#elif (NUMBER==1)
-LOOP_SAD1:
-#endif
-    /****** process 8 pixels ******/
-    x10 = *((uint32*)(ref += lx)); /* D C B A */
-    x11 = *((uint32*)(ref + 4));    /* H G F E */
-    x12 = *((uint32*)(ref + 8));    /* L K J I */
-
-    x10 = ((uint32)x10 >> SHIFT); /* 0 0 0 D */
-    x10 = x10 | (x11 << (32 - SHIFT));        /* G F E D */
-    x11 = ((uint32)x11 >> SHIFT); /* 0 0 0 H */
-    x11 = x11 | (x12 << (32 - SHIFT));        /* K J I H */
-
-    x12 = *((uint32*)(blk += 16));
-    x14 = *((uint32*)(blk + 4));
-
-    /* process x11 & x14 */
-    x11 = sad_4pixel(x11, x14, x9);
-
-    /* process x12 & x10 */
-    x10 = sad_4pixel(x10, x12, x9);
-
-    x5 = x5 + x10; /* accumulate low bytes */
-    x10 = x10 & (x6 << 8); /* x10 & 0xFF00FF00 */
-    x4 = x4 + ((uint32)x10 >> 8);  /* accumulate high bytes */
-    x5 = x5 + x11;  /* accumulate low bytes */
-    x11 = x11 & (x6 << 8); /* x11 & 0xFF00FF00 */
-    x4 = x4 + ((uint32)x11 >> 8);  /* accumulate high bytes */
-
-    /****** process 8 pixels ******/
-    x10 = *((uint32*)(ref + 8)); /* D C B A */
-    x11 = *((uint32*)(ref + 12));   /* H G F E */
-    x12 = *((uint32*)(ref + 16));   /* L K J I */
-
-    x10 = ((uint32)x10 >> SHIFT); /* mvn x10, x10, lsr #24  = 0xFF 0xFF 0xFF ~D */
-    x10 = x10 | (x11 << (32 - SHIFT));        /* bic x10, x10, x11, lsl #8 = ~G ~F ~E ~D */
-    x11 = ((uint32)x11 >> SHIFT); /* 0xFF 0xFF 0xFF ~H */
-    x11 = x11 | (x12 << (32 - SHIFT));        /* ~K ~J ~I ~H */
-
-    x12 = *((uint32*)(blk + 8));
-    x14 = *((uint32*)(blk + 12));
-
-    /* process x11 & x14 */
-    x11 = sad_4pixel(x11, x14, x9);
-
-    /* process x12 & x10 */
-    x10 = sad_4pixel(x10, x12, x9);
-
-    x5 = x5 + x10; /* accumulate low bytes */
-    x10 = x10 & (x6 << 8); /* x10 & 0xFF00FF00 */
-    x4 = x4 + ((uint32)x10 >> 8);  /* accumulate high bytes */
-    x5 = x5 + x11;  /* accumulate low bytes */
-    x11 = x11 & (x6 << 8); /* x11 & 0xFF00FF00 */
-    x4 = x4 + ((uint32)x11 >> 8);  /* accumulate high bytes */
-
-    /****************/
-    x10 = x5 - (x4 << 8); /* extract low bytes */
-    x10 = x10 + x4;     /* add with high bytes */
-    x10 = x10 + (x10 << 16); /* add with lower half word */
-
-    if ((int)((uint32)x10 >> 16) <= dmin) /* compare with dmin */
-    {
-        if (--x8)
-        {
-#if (NUMBER==3)
-            goto         LOOP_SAD3;
-#elif (NUMBER==2)
-            goto         LOOP_SAD2;
-#elif (NUMBER==1)
-            goto         LOOP_SAD1;
-#endif
-        }
-
-    }
-
-    return ((uint32)x10 >> 16);
-}
-
-#elif defined(__CC_ARM)  /* only work with arm v5 */
-
-#if (NUMBER==3)
-__inline int32 sad_mb_offset3(uint8 *ref, uint8 *blk, int lx, int dmin, int32 x8)
-#elif (NUMBER==2)
-__inline int32 sad_mb_offset2(uint8 *ref, uint8 *blk, int lx, int dmin, int32 x8)
-#elif (NUMBER==1)
-__inline int32 sad_mb_offset1(uint8 *ref, uint8 *blk, int lx, int dmin, int32 x8)
-#endif
-{
-    int32 x4, x5, x6, x9, x10, x11, x12, x14;
-
-    x9 = 0x80808080; /* const. */
-    x4 = x5 = 0;
-
-    __asm{
-        MVN      x6, #0xff0000;
-#if (NUMBER==3)
-LOOP_SAD3:
-#elif (NUMBER==2)
-LOOP_SAD2:
-#elif (NUMBER==1)
-LOOP_SAD1:
-#endif
-        BIC      ref, ref, #3;
-    }
-    /****** process 8 pixels ******/
-    x11 = *((int32*)(ref + 12));
-    x12 = *((int32*)(ref + 16));
-    x10 = *((int32*)(ref + 8));
-    x14 = *((int32*)(blk + 12));
-
-    __asm{
-        MVN      x10, x10, lsr #SHIFT;
-        BIC      x10, x10, x11, lsl #(32-SHIFT);
-        MVN      x11, x11, lsr #SHIFT;
-        BIC      x11, x11, x12, lsl #(32-SHIFT);
-
-        LDR      x12, [blk, #8];
-    }
-
-    /* process x11 & x14 */
-    x11 = sad_4pixelN(x11, x14, x9);
-
-    /* process x12 & x10 */
-    x10 = sad_4pixelN(x10, x12, x9);
-
-    sum_accumulate;
-
-    __asm{
-        /****** process 8 pixels ******/
-        LDR      x11, [ref, #4];
-        LDR      x12, [ref, #8];
-        LDR  x10, [ref], lx ;
-        LDR  x14, [blk, #4];
-
-        MVN      x10, x10, lsr #SHIFT;
-        BIC      x10, x10, x11, lsl #(32-SHIFT);
-        MVN      x11, x11, lsr #SHIFT;
-        BIC      x11, x11, x12, lsl #(32-SHIFT);
-
-        LDR      x12, [blk], #16;
-    }
-
-    /* process x11 & x14 */
-    x11 = sad_4pixelN(x11, x14, x9);
-
-    /* process x12 & x10 */
-    x10 = sad_4pixelN(x10, x12, x9);
-
-    sum_accumulate;
-
-    /****************/
-    x10 = x5 - (x4 << 8); /* extract low bytes */
-    x10 = x10 + x4;     /* add with high bytes */
-    x10 = x10 + (x10 << 16); /* add with lower half word */
-
-    __asm{
-        RSBS     x11, dmin, x10, lsr #16
-        ADDLSS   x8, x8, #INC_X8
-#if (NUMBER==3)
-        BLS      LOOP_SAD3;
-#elif (NUMBER==2)
-BLS      LOOP_SAD2;
-#elif (NUMBER==1)
-BLS      LOOP_SAD1;
-#endif
-    }
-
-    return ((uint32)x10 >> 16);
-}
-
-#elif defined(__GNUC__) && defined(__arm__) /* ARM GNU COMPILER  */
-
-#if (NUMBER==3)
-__inline int32 sad_mb_offset3(uint8 *ref, uint8 *blk, int lx, int dmin)
-#elif (NUMBER==2)
-__inline int32 sad_mb_offset2(uint8 *ref, uint8 *blk, int lx, int dmin)
-#elif (NUMBER==1)
-__inline int32 sad_mb_offset1(uint8 *ref, uint8 *blk, int lx, int dmin)
-#endif
-{
-    int32 x4, x5, x6, x8, x9, x10, x11, x12, x14;
-
-    x9 = 0x80808080; /* const. */
-    x4 = x5 = 0;
-    x8 = 16; //<<===========*******
-
-    __asm__ volatile("MVN       %0, #0xFF0000": "=r"(x6));
-
-#if (NUMBER==3)
-LOOP_SAD3:
-#elif (NUMBER==2)
-LOOP_SAD2:
-#elif (NUMBER==1)
-LOOP_SAD1:
-#endif
-    __asm__ volatile("BIC  %0, %0, #3": "+r"(ref));
-    /****** process 8 pixels ******/
-    x11 = *((int32*)(ref + 12));
-    x12 = *((int32*)(ref + 16));
-    x10 = *((int32*)(ref + 8));
-    x14 = *((int32*)(blk + 12));
-
-#if (SHIFT==8)
-    __asm__ volatile(
-        "MVN   %0, %0, lsr #8\n\t"
-        "BIC   %0, %0, %1, lsl #24\n\t"
-        "MVN   %1, %1, lsr #8\n\t"
-        "BIC   %1, %1, %2, lsl #24"
-        : "+r"(x10), "+r"(x11)
-        : "r"(x12)
-    );
-#elif (SHIFT==16)
-    __asm__ volatile(
-        "MVN   %0, %0, lsr #16\n\t"
-        "BIC   %0, %0, %1, lsl #16\n\t"
-        "MVN   %1, %1, lsr #16\n\t"
-        "BIC   %1, %1, %2, lsl #16"
-        : "+r"(x10), "+r"(x11)
-        : "r"(x12)
-    );
-#elif (SHIFT==24)
-    __asm__ volatile(
-        "MVN   %0, %0, lsr #24\n\t"
-        "BIC   %0, %0, %1, lsl #8\n\t"
-        "MVN   %1, %1, lsr #24\n\t"
-        "BIC   %1, %1, %2, lsl #8"
-        : "+r"(x10), "+r"(x11)
-        : "r"(x12)
-    );
-#endif
-
-    x12 = *((int32*)(blk + 8));
-
-    /* process x11 & x14 */
-    x11 = sad_4pixelN(x11, x14, x9);
-
-    /* process x12 & x10 */
-    x10 = sad_4pixelN(x10, x12, x9);
-
-    sum_accumulate;
-
-    /****** process 8 pixels ******/
-    x11 = *((int32*)(ref + 4));
-    x12 = *((int32*)(ref + 8));
-    x10 = *((int32*)ref); ref += lx;
-    x14 = *((int32*)(blk + 4));
-
-#if (SHIFT==8)
-    __asm__ volatile(
-        "MVN   %0, %0, lsr #8\n\t"
-        "BIC   %0, %0, %1, lsl #24\n\t"
-        "MVN   %1, %1, lsr #8\n\t"
-        "BIC   %1, %1, %2, lsl #24"
-        : "+r"(x10), "+r"(x11)
-        : "r"(x12)
-    );
-#elif (SHIFT==16)
-    __asm__ volatile(
-        "MVN   %0, %0, lsr #16\n\t"
-        "BIC   %0, %0, %1, lsl #16\n\t"
-        "MVN   %1, %1, lsr #16\n\t"
-        "BIC   %1, %1, %2, lsl #16"
-        : "+r"(x10), "+r"(x11)
-        : "r"(x12)
-    );
-#elif (SHIFT==24)
-    __asm__ volatile(
-        "MVN   %0, %0, lsr #24\n\t"
-        "BIC   %0, %0, %1, lsl #8\n\t"
-        "MVN   %1, %1, lsr #24\n\t"
-        "BIC   %1, %1, %2, lsl #8"
-        : "+r"(x10), "+r"(x11)
-        : "r"(x12)
-    );
-#endif
-    __asm__ volatile("LDR   %0, [%1], #16": "=&r"(x12), "+r"(blk));
-
-    /* process x11 & x14 */
-    x11 = sad_4pixelN(x11, x14, x9);
-
-    /* process x12 & x10 */
-    x10 = sad_4pixelN(x10, x12, x9);
-
-    sum_accumulate;
-
-    /****************/
-    x10 = x5 - (x4 << 8); /* extract low bytes */
-    x10 = x10 + x4;     /* add with high bytes */
-    x10 = x10 + (x10 << 16); /* add with lower half word */
-
-    if (((uint32)x10 >> 16) <= (uint32)dmin) /* compare with dmin */
-    {
-        if (--x8)
-        {
-#if (NUMBER==3)
-            goto         LOOP_SAD3;
-#elif (NUMBER==2)
-            goto         LOOP_SAD2;
-#elif (NUMBER==1)
-            goto         LOOP_SAD1;
-#endif
-        }
-
-    }
-
-    return ((uint32)x10 >> 16);
-}
-
-#endif
-
diff --git a/media/libstagefright/codecs/avc/enc/src/slice.cpp b/media/libstagefright/codecs/avc/enc/src/slice.cpp
deleted file mode 100644
index f6d066e..0000000
--- a/media/libstagefright/codecs/avc/enc/src/slice.cpp
+++ /dev/null
@@ -1,1025 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-
-
-AVCEnc_Status AVCEncodeSlice(AVCEncObject *encvid)
-{
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    AVCCommonObj *video = encvid->common;
-    AVCPicParamSet *pps = video->currPicParams;
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    AVCMacroblock *currMB ;
-    AVCEncBitstream *stream = encvid->bitstream;
-    uint slice_group_id;
-    int CurrMbAddr, slice_type;
-
-    slice_type = video->slice_type;
-
-    /* set the first mb in slice */
-    video->mbNum = CurrMbAddr = sliceHdr->first_mb_in_slice;// * (1+video->MbaffFrameFlag);
-    slice_group_id = video->MbToSliceGroupMap[CurrMbAddr];
-
-    video->mb_skip_run = 0;
-
-    /* while loop , see subclause 7.3.4 */
-    while (1)
-    {
-        video->mbNum = CurrMbAddr;
-        currMB = video->currMB = &(video->mblock[CurrMbAddr]);
-        currMB->slice_id = video->slice_id;  // for deblocking
-
-        video->mb_x = CurrMbAddr % video->PicWidthInMbs;
-        video->mb_y = CurrMbAddr / video->PicWidthInMbs;
-
-        /* initialize QP for this MB here*/
-        /* calculate currMB->QPy */
-        RCInitMBQP(encvid);
-
-        /* check the availability of neighboring macroblocks */
-        InitNeighborAvailability(video, CurrMbAddr);
-
-        /* Assuming that InitNeighborAvailability has been called prior to this function */
-        video->intraAvailA = video->intraAvailB = video->intraAvailC = video->intraAvailD = 0;
-        /* this is necessary for all subsequent intra search */
-
-        if (!video->currPicParams->constrained_intra_pred_flag)
-        {
-            video->intraAvailA = video->mbAvailA;
-            video->intraAvailB = video->mbAvailB;
-            video->intraAvailC = video->mbAvailC;
-            video->intraAvailD = video->mbAvailD;
-        }
-        else
-        {
-            if (video->mbAvailA)
-            {
-                video->intraAvailA = video->mblock[video->mbAddrA].mb_intra;
-            }
-            if (video->mbAvailB)
-            {
-                video->intraAvailB = video->mblock[video->mbAddrB].mb_intra ;
-            }
-            if (video->mbAvailC)
-            {
-                video->intraAvailC = video->mblock[video->mbAddrC].mb_intra;
-            }
-            if (video->mbAvailD)
-            {
-                video->intraAvailD = video->mblock[video->mbAddrD].mb_intra;
-            }
-        }
-
-        /* encode_one_macroblock() */
-        status = EncodeMB(encvid);
-        if (status != AVCENC_SUCCESS)
-        {
-            break;
-        }
-
-        /* go to next MB */
-        CurrMbAddr++;
-
-        while ((uint)video->MbToSliceGroupMap[CurrMbAddr] != slice_group_id &&
-                (uint)CurrMbAddr < video->PicSizeInMbs)
-        {
-            CurrMbAddr++;
-        }
-
-        if ((uint)CurrMbAddr >= video->PicSizeInMbs)
-        {
-            /* end of slice, return, but before that check to see if there are other slices
-            to be encoded. */
-            encvid->currSliceGroup++;
-            if (encvid->currSliceGroup > (int)pps->num_slice_groups_minus1) /* no more slice group */
-            {
-                status = AVCENC_PICTURE_READY;
-                break;
-            }
-            else
-            {
-                /* find first_mb_num for the next slice */
-                CurrMbAddr = 0;
-                while (video->MbToSliceGroupMap[CurrMbAddr] != encvid->currSliceGroup &&
-                        (uint)CurrMbAddr < video->PicSizeInMbs)
-                {
-                    CurrMbAddr++;
-                }
-                if ((uint)CurrMbAddr >= video->PicSizeInMbs)
-                {
-                    status = AVCENC_SLICE_EMPTY; /* error, one slice group has no MBs in it */
-                }
-
-                video->mbNum = CurrMbAddr;
-                status = AVCENC_SUCCESS;
-                break;
-            }
-        }
-    }
-
-    if (video->mb_skip_run > 0)
-    {
-        /* write skip_run */
-        if (slice_type != AVC_I_SLICE && slice_type != AVC_SI_SLICE)
-        {
-            ue_v(stream, video->mb_skip_run);
-            video->mb_skip_run = 0;
-        }
-        else    /* shouldn't happen */
-        {
-            status = AVCENC_FAIL;
-        }
-    }
-
-    return status;
-}
-
-
-AVCEnc_Status EncodeMB(AVCEncObject *encvid)
-{
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    AVCCommonObj *video = encvid->common;
-    AVCPictureData *currPic = video->currPic;
-    AVCFrameIO  *currInput = encvid->currInput;
-    AVCMacroblock *currMB = video->currMB;
-    AVCMacroblock *MB_A, *MB_B;
-    AVCEncBitstream *stream = encvid->bitstream;
-    AVCRateControl *rateCtrl = encvid->rateCtrl;
-    uint8 *cur, *curL, *curCb, *curCr;
-    uint8 *orgL, *orgCb, *orgCr, *org4;
-    int CurrMbAddr = video->mbNum;
-    int picPitch = currPic->pitch;
-    int orgPitch = currInput->pitch;
-    int x_position = (video->mb_x << 4);
-    int y_position = (video->mb_y << 4);
-    int offset;
-    int b8, b4, blkidx;
-    AVCResidualType  resType;
-    int slice_type;
-    int numcoeff; /* output from residual_block_cavlc */
-    int cost16, cost8;
-
-    int num_bits, start_mb_bits, start_text_bits;
-
-    slice_type = video->slice_type;
-
-    /* now, point to the reconstructed frame */
-    offset = y_position * picPitch + x_position;
-    curL = currPic->Sl + offset;
-    orgL = currInput->YCbCr[0] + offset;
-    offset = (offset + x_position) >> 2;
-    curCb = currPic->Scb + offset;
-    curCr = currPic->Scr + offset;
-    orgCb = currInput->YCbCr[1] + offset;
-    orgCr = currInput->YCbCr[2] + offset;
-
-    if (orgPitch != picPitch)
-    {
-        offset = y_position * (orgPitch - picPitch);
-        orgL += offset;
-        offset >>= 2;
-        orgCb += offset;
-        orgCr += offset;
-    }
-
-    /******* determine MB prediction mode *******/
-    if (encvid->intraSearch[CurrMbAddr])
-    {
-        MBIntraSearch(encvid, CurrMbAddr, curL, picPitch);
-    }
-    /******* This part should be determined somehow ***************/
-    if (currMB->mbMode == AVC_I_PCM)
-    {
-        /* write down mb_type and PCM data */
-        /* and copy from currInput to currPic */
-        status = EncodeIntraPCM(encvid);
-
-
-        return status;
-    }
-
-    /****** for intra prediction, pred is already done *******/
-    /****** for I4, the recon is ready and Xfrm coefs are ready to be encoded *****/
-
-    //RCCalculateMAD(encvid,currMB,orgL,orgPitch); // no need to re-calculate MAD for Intra
-    // not used since totalSAD is used instead
-
-    /* compute the prediction */
-    /* output is video->pred_block */
-    if (!currMB->mb_intra)
-    {
-        AVCMBMotionComp(encvid, video); /* perform prediction and residue calculation */
-        /* we can do the loop here and call dct_luma */
-        video->pred_pitch = picPitch;
-        currMB->CBP = 0;
-        cost16 = 0;
-        cur = curL;
-        org4 = orgL;
-
-        for (b8 = 0; b8 < 4; b8++)
-        {
-            cost8 = 0;
-
-            for (b4 = 0; b4 < 4; b4++)
-            {
-                blkidx = blkIdx2blkXY[b8][b4];
-                video->pred_block = cur;
-                numcoeff = dct_luma(encvid, blkidx, cur, org4, &cost8);
-                currMB->nz_coeff[blkidx] = numcoeff;
-                if (numcoeff)
-                {
-                    video->cbp4x4 |= (1 << blkidx);
-                    currMB->CBP |= (1 << b8);
-                }
-
-                if (b4&1)
-                {
-                    cur += ((picPitch << 2) - 4);
-                    org4 += ((orgPitch << 2) - 4);
-                }
-                else
-                {
-                    cur += 4;
-                    org4 += 4;
-                }
-            }
-
-            /* move the IDCT part out of dct_luma to accommodate the check
-               for coeff_cost. */
-
-            if ((currMB->CBP&(1 << b8)) && (cost8 <= _LUMA_COEFF_COST_))
-            {
-                cost8 = 0; // reset it
-
-                currMB->CBP ^= (1 << b8);
-                blkidx = blkIdx2blkXY[b8][0];
-
-                currMB->nz_coeff[blkidx] = 0;
-                currMB->nz_coeff[blkidx+1] = 0;
-                currMB->nz_coeff[blkidx+4] = 0;
-                currMB->nz_coeff[blkidx+5] = 0;
-            }
-
-            cost16 += cost8;
-
-            if (b8&1)
-            {
-                cur -= 8;
-                org4 -= 8;
-            }
-            else
-            {
-                cur += (8 - (picPitch << 3));
-                org4 += (8 - (orgPitch << 3));
-            }
-        }
-
-        /* after the whole MB, we do another check for coeff_cost */
-        if ((currMB->CBP&0xF) && (cost16 <= _LUMA_MB_COEFF_COST_))
-        {
-            currMB->CBP = 0;  // reset it to zero
-            memset(currMB->nz_coeff, 0, sizeof(uint8)*16);
-        }
-
-        // now we do IDCT
-        MBInterIdct(video, curL, currMB, picPitch);
-
-//      video->pred_block = video->pred + 256;
-    }
-    else    /* Intra prediction */
-    {
-        encvid->numIntraMB++;
-
-        if (currMB->mbMode == AVC_I16) /* do prediction for the whole macroblock */
-        {
-            currMB->CBP = 0;
-            /* get the prediction from encvid->pred_i16 */
-            dct_luma_16x16(encvid, curL, orgL);
-        }
-        video->pred_block = encvid->pred_ic[currMB->intra_chroma_pred_mode];
-    }
-
-    /* chrominance */
-    /* not need to do anything, the result is in encvid->pred_ic
-    chroma dct must be aware that prediction block can come from either intra or inter. */
-
-    dct_chroma(encvid, curCb, orgCb, 0);
-
-    dct_chroma(encvid, curCr, orgCr, 1);
-
-
-    /* 4.1 if there's nothing in there, video->mb_skip_run++ */
-    /* 4.2 if coded, check if there is a run of skipped MB, encodes it,
-            set video->QPyprev = currMB->QPy; */
-
-    /* 5. vlc encode */
-
-    /* check for skipped macroblock, INTER only */
-    if (!currMB->mb_intra)
-    {
-        /* decide whether this MB (for inter MB) should be skipped if there's nothing left. */
-        if (!currMB->CBP && currMB->NumMbPart == 1 && currMB->QPy == video->QPy)
-        {
-            if (currMB->MBPartPredMode[0][0] == AVC_Pred_L0 && currMB->ref_idx_L0[0] == 0)
-            {
-                MB_A = &video->mblock[video->mbAddrA];
-                MB_B = &video->mblock[video->mbAddrB];
-
-                if (!video->mbAvailA || !video->mbAvailB)
-                {
-                    if (currMB->mvL0[0] == 0) /* both mv components are zeros.*/
-                    {
-                        currMB->mbMode = AVC_SKIP;
-                        video->mvd_l0[0][0][0] = 0;
-                        video->mvd_l0[0][0][1] = 0;
-                    }
-                }
-                else
-                {
-                    if ((MB_A->ref_idx_L0[1] == 0 && MB_A->mvL0[3] == 0) ||
-                            (MB_B->ref_idx_L0[2] == 0 && MB_B->mvL0[12] == 0))
-                    {
-                        if (currMB->mvL0[0] == 0) /* both mv components are zeros.*/
-                        {
-                            currMB->mbMode = AVC_SKIP;
-                            video->mvd_l0[0][0][0] = 0;
-                            video->mvd_l0[0][0][1] = 0;
-                        }
-                    }
-                    else if (video->mvd_l0[0][0][0] == 0 && video->mvd_l0[0][0][1] == 0)
-                    {
-                        currMB->mbMode = AVC_SKIP;
-                    }
-                }
-            }
-
-            if (currMB->mbMode == AVC_SKIP)
-            {
-                video->mb_skip_run++;
-
-                /* set parameters */
-                /* not sure whether we need the followings */
-                if (slice_type == AVC_P_SLICE)
-                {
-                    currMB->mbMode = AVC_SKIP;
-                    currMB->MbPartWidth = currMB->MbPartHeight = 16;
-                    currMB->MBPartPredMode[0][0] = AVC_Pred_L0;
-                    currMB->NumMbPart = 1;
-                    currMB->NumSubMbPart[0] = currMB->NumSubMbPart[1] =
-                                                  currMB->NumSubMbPart[2] = currMB->NumSubMbPart[3] = 1;
-                    currMB->SubMbPartWidth[0] = currMB->SubMbPartWidth[1] =
-                                                    currMB->SubMbPartWidth[2] = currMB->SubMbPartWidth[3] = currMB->MbPartWidth;
-                    currMB->SubMbPartHeight[0] = currMB->SubMbPartHeight[1] =
-                                                     currMB->SubMbPartHeight[2] = currMB->SubMbPartHeight[3] = currMB->MbPartHeight;
-
-                }
-                else if (slice_type == AVC_B_SLICE)
-                {
-                    currMB->mbMode = AVC_SKIP;
-                    currMB->MbPartWidth = currMB->MbPartHeight = 8;
-                    currMB->MBPartPredMode[0][0] = AVC_Direct;
-                    currMB->NumMbPart = -1;
-                }
-
-                /* for skipped MB, always look at the first entry in RefPicList */
-                currMB->RefIdx[0] = currMB->RefIdx[1] =
-                                        currMB->RefIdx[2] = currMB->RefIdx[3] = video->RefPicList0[0]->RefIdx;
-
-                /* do not return yet, need to do some copies */
-            }
-        }
-    }
-    /* non-skipped MB */
-
-
-    /************* START ENTROPY CODING *************************/
-
-    start_mb_bits = 32 + (encvid->bitstream->write_pos << 3) - encvid->bitstream->bit_left;
-
-    /* encode mb_type, mb_pred, sub_mb_pred, CBP */
-    if (slice_type != AVC_I_SLICE && slice_type != AVC_SI_SLICE && currMB->mbMode != AVC_SKIP)
-    {
-        //if(!pps->entropy_coding_mode_flag)  ALWAYS true
-        {
-            ue_v(stream, video->mb_skip_run);
-            video->mb_skip_run = 0;
-        }
-    }
-
-    if (currMB->mbMode != AVC_SKIP)
-    {
-        status = EncodeMBHeader(currMB, encvid);
-        if (status != AVCENC_SUCCESS)
-        {
-            return status;
-        }
-    }
-
-    start_text_bits = 32 + (encvid->bitstream->write_pos << 3) - encvid->bitstream->bit_left;
-
-    /**** now decoding part *******/
-    resType = AVC_Luma;
-
-    /* DC transform for luma I16 mode */
-    if (currMB->mbMode == AVC_I16)
-    {
-        /* vlc encode level/run */
-        status = enc_residual_block(encvid, AVC_Intra16DC, encvid->numcoefdc, currMB);
-        if (status != AVCENC_SUCCESS)
-        {
-            return status;
-        }
-        resType = AVC_Intra16AC;
-    }
-
-    /* VLC encoding for luma */
-    for (b8 = 0; b8 < 4; b8++)
-    {
-        if (currMB->CBP&(1 << b8))
-        {
-            for (b4 = 0; b4 < 4; b4++)
-            {
-                /* vlc encode level/run */
-                status = enc_residual_block(encvid, resType, (b8 << 2) + b4, currMB);
-                if (status != AVCENC_SUCCESS)
-                {
-                    return status;
-                }
-            }
-        }
-    }
-
-    /* chroma */
-    if (currMB->CBP & (3 << 4)) /* chroma DC residual present */
-    {
-        for (b8 = 0; b8 < 2; b8++) /* for iCbCr */
-        {
-            /* vlc encode level/run */
-            status = enc_residual_block(encvid, AVC_ChromaDC, encvid->numcoefcdc[b8] + (b8 << 3), currMB);
-            if (status != AVCENC_SUCCESS)
-            {
-                return status;
-            }
-        }
-    }
-
-    if (currMB->CBP & (2 << 4))
-    {
-        /* AC part */
-        for (b8 = 0; b8 < 2; b8++) /* for iCbCr */
-        {
-            for (b4 = 0; b4 < 4; b4++)  /* for each block inside Cb or Cr */
-            {
-                /* vlc encode level/run */
-                status = enc_residual_block(encvid, AVC_ChromaAC, 16 + (b8 << 2) + b4, currMB);
-                if (status != AVCENC_SUCCESS)
-                {
-                    return status;
-                }
-            }
-        }
-    }
-
-
-    num_bits = 32 + (encvid->bitstream->write_pos << 3) - encvid->bitstream->bit_left;
-
-    RCPostMB(video, rateCtrl, start_text_bits - start_mb_bits,
-             num_bits - start_text_bits);
-
-//  num_bits -= start_mb_bits;
-//  fprintf(fdebug,"MB #%d: %d bits\n",CurrMbAddr,num_bits);
-//  fclose(fdebug);
-    return status;
-}
-
-/* copy the content from predBlock back to the reconstructed YUV frame */
-void Copy_MB(uint8 *curL, uint8 *curCb, uint8 *curCr, uint8 *predBlock, int picPitch)
-{
-    int j, offset;
-    uint32 *dst, *dst2, *src;
-
-    dst = (uint32*)curL;
-    src = (uint32*)predBlock;
-
-    offset = (picPitch - 16) >> 2;
-
-    for (j = 0; j < 16; j++)
-    {
-        *dst++ = *src++;
-        *dst++ = *src++;
-        *dst++ = *src++;
-        *dst++ = *src++;
-
-        dst += offset;
-    }
-
-    dst = (uint32*)curCb;
-    dst2 = (uint32*)curCr;
-    offset >>= 1;
-
-    for (j = 0; j < 8; j++)
-    {
-        *dst++ = *src++;
-        *dst++ = *src++;
-        *dst2++ = *src++;
-        *dst2++ = *src++;
-
-        dst += offset;
-        dst2 += offset;
-    }
-    return ;
-}
-
-/* encode mb_type, mb_pred, sub_mb_pred, CBP */
-/* decide whether this MB (for inter MB) should be skipped */
-AVCEnc_Status EncodeMBHeader(AVCMacroblock *currMB, AVCEncObject *encvid)
-{
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    uint mb_type;
-    AVCCommonObj *video = encvid->common;
-    AVCEncBitstream *stream = encvid->bitstream;
-
-    if (currMB->CBP > 47)   /* chroma CBP is 11 */
-    {
-        currMB->CBP -= 16;  /* remove the 5th bit from the right */
-    }
-
-    mb_type = InterpretMBType(currMB, video->slice_type);
-
-    status = ue_v(stream, mb_type);
-
-    if (currMB->mbMode == AVC_P8 || currMB->mbMode == AVC_P8ref0)
-    {
-        status = sub_mb_pred(video, currMB, stream);
-    }
-    else
-    {
-        status = mb_pred(video, currMB, stream) ;
-    }
-
-    if (currMB->mbMode != AVC_I16)
-    {
-        /* decode coded_block_pattern */
-        status = EncodeCBP(currMB, stream);
-    }
-
-    /* calculate currMB->mb_qp_delta = currMB->QPy - video->QPyprev */
-    if (currMB->CBP > 0 || currMB->mbMode == AVC_I16)
-    {
-        status = se_v(stream, currMB->QPy - video->QPy);
-        video->QPy = currMB->QPy; /* = (video->QPyprev + currMB->mb_qp_delta + 52)%52; */
-        // no need video->QPc = currMB->QPc;
-    }
-    else
-    {
-        if (currMB->QPy != video->QPy) // current QP is not the same as previous QP
-        {
-            /* restore these values */
-            RCRestoreQP(currMB, video, encvid);
-        }
-    }
-
-    return status;
-}
-
-
-/* inputs are mbMode, mb_intra, i16Mode, CBP, NumMbPart, MbPartWidth, MbPartHeight */
-uint InterpretMBType(AVCMacroblock *currMB, int slice_type)
-{
-    int CBP_chrom;
-    int mb_type;// part1, part2, part3;
-//  const static int MapParts2Type[2][3][3]={{{4,8,12},{10,6,14},{16,18,20}},
-//  {{5,9,13},{11,7,15},{17,19,21}}};
-
-    if (currMB->mb_intra)
-    {
-        if (currMB->mbMode == AVC_I4)
-        {
-            mb_type = 0;
-        }
-        else if (currMB->mbMode == AVC_I16)
-        {
-            CBP_chrom = (currMB->CBP & 0x30);
-            if (currMB->CBP&0xF)
-            {
-                currMB->CBP |= 0xF;  /* either 0x0 or 0xF */
-                mb_type = 13;
-            }
-            else
-            {
-                mb_type = 1;
-            }
-            mb_type += (CBP_chrom >> 2) + currMB->i16Mode;
-        }
-        else /* if(currMB->mbMode == AVC_I_PCM) */
-        {
-            mb_type = 25;
-        }
-    }
-    else
-    {  /* P-MB *//* note that the order of the enum AVCMBMode cannot be changed
-        since we use it here. */
-        mb_type = currMB->mbMode - AVC_P16;
-    }
-
-    if (slice_type == AVC_P_SLICE)
-    {
-        if (currMB->mb_intra)
-        {
-            mb_type += 5;
-        }
-    }
-    // following codes have not been tested yet, not needed.
-    /*  else if(slice_type == AVC_B_SLICE)
-        {
-            if(currMB->mbMode == AVC_BDirect16)
-            {
-                mb_type = 0;
-            }
-            else if(currMB->mbMode == AVC_P16)
-            {
-                mb_type = currMB->MBPartPredMode[0][0] + 1; // 1 or 2
-            }
-            else if(currMB->mbMode == AVC_P8)
-            {
-                mb_type = 26;
-            }
-            else if(currMB->mbMode == AVC_P8ref0)
-            {
-                mb_type = 27;
-            }
-            else
-            {
-                part1 = currMB->mbMode - AVC_P16x8;
-                part2 = currMB->MBPartPredMode[0][0];
-                part3 = currMB->MBPartPredMode[1][0];
-                mb_type = MapParts2Type[part1][part2][part3];
-            }
-        }
-
-        if(slice_type == AVC_SI_SLICE)
-        {
-            mb_type++;
-        }
-    */
-    return (uint)mb_type;
-}
-
-//const static int mbPart2raster[3][4] = {{0,0,0,0},{1,1,0,0},{1,0,1,0}};
-
-/* see subclause 7.3.5.1 */
-AVCEnc_Status mb_pred(AVCCommonObj *video, AVCMacroblock *currMB, AVCEncBitstream *stream)
-{
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    int mbPartIdx;
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    int max_ref_idx;
-    uint code;
-
-    if (currMB->mbMode == AVC_I4 || currMB->mbMode == AVC_I16)
-    {
-        if (currMB->mbMode == AVC_I4)
-        {
-            /* perform prediction to get the actual intra 4x4 pred mode */
-            EncodeIntra4x4Mode(video, currMB, stream);
-            /* output will be in currMB->i4Mode[4][4] */
-        }
-
-        /* assume already set from MBPrediction() */
-        status = ue_v(stream, currMB->intra_chroma_pred_mode);
-    }
-    else if (currMB->MBPartPredMode[0][0] != AVC_Direct)
-    {
-
-        memset(currMB->ref_idx_L0, 0, sizeof(int16)*4);
-
-        /* see subclause 7.4.5.1 for the range of ref_idx_lX */
-        max_ref_idx = sliceHdr->num_ref_idx_l0_active_minus1;
-        /*      if(video->MbaffFrameFlag && currMB->mb_field_decoding_flag)
-                    max_ref_idx = 2*sliceHdr->num_ref_idx_l0_active_minus1 + 1;
-        */
-        /* decode ref index for L0 */
-        if (sliceHdr->num_ref_idx_l0_active_minus1 > 0)
-        {
-            for (mbPartIdx = 0; mbPartIdx < currMB->NumMbPart; mbPartIdx++)
-            {
-                if (/*(sliceHdr->num_ref_idx_l0_active_minus1>0 || currMB->mb_field_decoding_flag) &&*/
-                    currMB->MBPartPredMode[mbPartIdx][0] != AVC_Pred_L1)
-                {
-                    code = currMB->ref_idx_L0[mbPartIdx];
-                    status = te_v(stream, code, max_ref_idx);
-                }
-            }
-        }
-
-        /* see subclause 7.4.5.1 for the range of ref_idx_lX */
-        max_ref_idx = sliceHdr->num_ref_idx_l1_active_minus1;
-        /*      if(video->MbaffFrameFlag && currMB->mb_field_decoding_flag)
-                    max_ref_idx = 2*sliceHdr->num_ref_idx_l1_active_minus1 + 1;
-        */
-        /* decode ref index for L1 */
-        if (sliceHdr->num_ref_idx_l1_active_minus1 > 0)
-        {
-            for (mbPartIdx = 0; mbPartIdx < currMB->NumMbPart; mbPartIdx++)
-            {
-                if (/*(sliceHdr->num_ref_idx_l1_active_minus1>0 || currMB->mb_field_decoding_flag) &&*/
-                    currMB->MBPartPredMode[mbPartIdx][0] != AVC_Pred_L0)
-                {
-                    status = te_v(stream, currMB->ref_idx_L1[mbPartIdx], max_ref_idx);
-                }
-            }
-        }
-
-        /* encode mvd_l0 */
-        for (mbPartIdx = 0; mbPartIdx < currMB->NumMbPart; mbPartIdx++)
-        {
-            if (currMB->MBPartPredMode[mbPartIdx][0] != AVC_Pred_L1)
-            {
-                status = se_v(stream, video->mvd_l0[mbPartIdx][0][0]);
-                status = se_v(stream, video->mvd_l0[mbPartIdx][0][1]);
-            }
-        }
-        /* encode mvd_l1 */
-        for (mbPartIdx = 0; mbPartIdx < currMB->NumMbPart; mbPartIdx++)
-        {
-            if (currMB->MBPartPredMode[mbPartIdx][0] != AVC_Pred_L0)
-            {
-                status = se_v(stream, video->mvd_l1[mbPartIdx][0][0]);
-                status = se_v(stream, video->mvd_l1[mbPartIdx][0][1]);
-            }
-        }
-    }
-
-    return status;
-}
-
-/* see subclause 7.3.5.2 */
-AVCEnc_Status sub_mb_pred(AVCCommonObj *video, AVCMacroblock *currMB, AVCEncBitstream *stream)
-{
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    int mbPartIdx, subMbPartIdx;
-    AVCSliceHeader *sliceHdr = video->sliceHdr;
-    uint max_ref_idx;
-    uint slice_type = video->slice_type;
-    uint sub_mb_type[4];
-
-    /* this should move somewhere else where we don't have to make this check */
-    if (currMB->mbMode == AVC_P8ref0)
-    {
-        memset(currMB->ref_idx_L0, 0, sizeof(int16)*4);
-    }
-
-    /* we have to check the values to make sure they are valid  */
-    /* assign values to currMB->sub_mb_type[] */
-    if (slice_type == AVC_P_SLICE)
-    {
-        InterpretSubMBTypeP(currMB, sub_mb_type);
-    }
-    /* no need to check for B-slice
-        else if(slice_type == AVC_B_SLICE)
-        {
-            InterpretSubMBTypeB(currMB,sub_mb_type);
-        }*/
-
-    for (mbPartIdx = 0; mbPartIdx < 4; mbPartIdx++)
-    {
-        status = ue_v(stream, sub_mb_type[mbPartIdx]);
-    }
-
-    /* see subclause 7.4.5.1 for the range of ref_idx_lX */
-    max_ref_idx = sliceHdr->num_ref_idx_l0_active_minus1;
-    /*  if(video->MbaffFrameFlag && currMB->mb_field_decoding_flag)
-            max_ref_idx = 2*sliceHdr->num_ref_idx_l0_active_minus1 + 1; */
-
-    for (mbPartIdx = 0; mbPartIdx < 4; mbPartIdx++)
-    {
-        if ((sliceHdr->num_ref_idx_l0_active_minus1 > 0 /*|| currMB->mb_field_decoding_flag*/) &&
-                currMB->mbMode != AVC_P8ref0 && /*currMB->subMbMode[mbPartIdx]!=AVC_BDirect8 &&*/
-                currMB->MBPartPredMode[mbPartIdx][0] != AVC_Pred_L1)
-        {
-            status = te_v(stream, currMB->ref_idx_L0[mbPartIdx], max_ref_idx);
-        }
-        /* used in deblocking */
-        currMB->RefIdx[mbPartIdx] = video->RefPicList0[currMB->ref_idx_L0[mbPartIdx]]->RefIdx;
-    }
-    /* see subclause 7.4.5.1 for the range of ref_idx_lX */
-    max_ref_idx = sliceHdr->num_ref_idx_l1_active_minus1;
-    /*  if(video->MbaffFrameFlag && currMB->mb_field_decoding_flag)
-            max_ref_idx = 2*sliceHdr->num_ref_idx_l1_active_minus1 + 1;*/
-
-    if (sliceHdr->num_ref_idx_l1_active_minus1 > 0)
-    {
-        for (mbPartIdx = 0; mbPartIdx < 4; mbPartIdx++)
-        {
-            if (/*(sliceHdr->num_ref_idx_l1_active_minus1>0 || currMB->mb_field_decoding_flag) &&*/
-                /*currMB->subMbMode[mbPartIdx]!=AVC_BDirect8 &&*/
-                currMB->MBPartPredMode[mbPartIdx][0] != AVC_Pred_L0)
-            {
-                status = te_v(stream, currMB->ref_idx_L1[mbPartIdx], max_ref_idx);
-            }
-        }
-    }
-
-    for (mbPartIdx = 0; mbPartIdx < 4; mbPartIdx++)
-    {
-        if (/*currMB->subMbMode[mbPartIdx]!=AVC_BDirect8 &&*/
-            currMB->MBPartPredMode[mbPartIdx][0] != AVC_Pred_L1)
-        {
-            for (subMbPartIdx = 0; subMbPartIdx < currMB->NumSubMbPart[mbPartIdx]; subMbPartIdx++)
-            {
-                status = se_v(stream, video->mvd_l0[mbPartIdx][subMbPartIdx][0]);
-                status = se_v(stream, video->mvd_l0[mbPartIdx][subMbPartIdx][1]);
-            }
-        }
-    }
-
-    for (mbPartIdx = 0; mbPartIdx < 4; mbPartIdx++)
-    {
-        if (/*currMB->subMbMode[mbPartIdx]!=AVC_BDirect8 &&*/
-            currMB->MBPartPredMode[mbPartIdx][0] != AVC_Pred_L0)
-        {
-            for (subMbPartIdx = 0; subMbPartIdx < currMB->NumSubMbPart[mbPartIdx]; subMbPartIdx++)
-            {
-                status = se_v(stream, video->mvd_l1[mbPartIdx][subMbPartIdx][0]);
-                status = se_v(stream, video->mvd_l1[mbPartIdx][subMbPartIdx][1]);
-            }
-        }
-    }
-
-    return status;
-}
-
-/* input is mblock->sub_mb_type[] */
-void InterpretSubMBTypeP(AVCMacroblock *mblock, uint *sub_mb_type)
-{
-    int i;
-    /* see enum AVCMBType declaration */
-    /*const static AVCSubMBMode map2subMbMode[4] = {AVC_8x8,AVC_8x4,AVC_4x8,AVC_4x4};
-    const static int map2subPartWidth[4] = {8,8,4,4};
-    const static int map2subPartHeight[4] = {8,4,8,4};
-    const static int map2numSubPart[4] = {1,2,2,4};*/
-
-    for (i = 0; i < 4 ; i++)
-    {
-        sub_mb_type[i] = mblock->subMbMode[i] - AVC_8x8;
-    }
-
-    return ;
-}
-
-void InterpretSubMBTypeB(AVCMacroblock *mblock, uint *sub_mb_type)
-{
-    int i;
-    /* see enum AVCMBType declaration */
-    /*  const static AVCSubMBMode map2subMbMode[13] = {AVC_BDirect8,AVC_8x8,AVC_8x8,
-            AVC_8x8,AVC_8x4,AVC_4x8,AVC_8x4,AVC_4x8,AVC_8x4,AVC_4x8,AVC_4x4,AVC_4x4,AVC_4x4};
-        const static int map2subPartWidth[13] = {4,8,8,8,8,4,8,4,8,4,4,4,4};
-        const static int map2subPartHeight[13] = {4,8,8,8,4,8,4,8,4,8,4,4,4};
-        const static int map2numSubPart[13] = {4,1,1,1,2,2,2,2,2,2,4,4,4};
-        const static int map2predMode[13] = {3,0,1,2,0,0,1,1,2,2,0,1,2};*/
-
-    for (i = 0; i < 4 ; i++)
-    {
-        if (mblock->subMbMode[i] == AVC_BDirect8)
-        {
-            sub_mb_type[i] = 0;
-        }
-        else if (mblock->subMbMode[i] == AVC_8x8)
-        {
-            sub_mb_type[i] = 1 + mblock->MBPartPredMode[i][0];
-        }
-        else if (mblock->subMbMode[i] == AVC_4x4)
-        {
-            sub_mb_type[i] = 10 + mblock->MBPartPredMode[i][0];
-        }
-        else
-        {
-            sub_mb_type[i] = 4 + (mblock->MBPartPredMode[i][0] << 1) + (mblock->subMbMode[i] - AVC_8x4);
-        }
-    }
-
-    return ;
-}
-
-/* see subclause 8.3.1 */
-AVCEnc_Status EncodeIntra4x4Mode(AVCCommonObj *video, AVCMacroblock *currMB, AVCEncBitstream *stream)
-{
-    int intra4x4PredModeA = 0;
-    int intra4x4PredModeB, predIntra4x4PredMode;
-    int component, SubBlock_indx, block_x, block_y;
-    int dcOnlyPredictionFlag;
-    uint    flag;
-    int     rem = 0;
-    int     mode;
-    int bindx = 0;
-
-    for (component = 0; component < 4; component++) /* partition index */
-    {
-        block_x = ((component & 1) << 1);
-        block_y = ((component >> 1) << 1);
-
-        for (SubBlock_indx = 0; SubBlock_indx < 4; SubBlock_indx++) /* sub-partition index */
-        {
-            dcOnlyPredictionFlag = 0;
-            if (block_x > 0)
-            {
-                intra4x4PredModeA = currMB->i4Mode[(block_y << 2) + block_x - 1 ];
-            }
-            else
-            {
-                if (video->intraAvailA)
-                {
-                    if (video->mblock[video->mbAddrA].mbMode == AVC_I4)
-                    {
-                        intra4x4PredModeA = video->mblock[video->mbAddrA].i4Mode[(block_y << 2) + 3];
-                    }
-                    else
-                    {
-                        intra4x4PredModeA = AVC_I4_DC;
-                    }
-                }
-                else
-                {
-                    dcOnlyPredictionFlag = 1;
-                }
-            }
-
-            if (block_y > 0)
-            {
-                intra4x4PredModeB = currMB->i4Mode[((block_y-1) << 2) + block_x];
-            }
-            else
-            {
-                if (video->intraAvailB)
-                {
-                    if (video->mblock[video->mbAddrB].mbMode == AVC_I4)
-                    {
-                        intra4x4PredModeB = video->mblock[video->mbAddrB].i4Mode[(3 << 2) + block_x];
-                    }
-                    else
-                    {
-                        intra4x4PredModeB = AVC_I4_DC;
-                    }
-                }
-                else
-                {
-                    dcOnlyPredictionFlag = 1;
-                }
-            }
-
-            if (dcOnlyPredictionFlag)
-            {
-                intra4x4PredModeA = intra4x4PredModeB = AVC_I4_DC;
-            }
-
-            predIntra4x4PredMode = AVC_MIN(intra4x4PredModeA, intra4x4PredModeB);
-
-            flag = 0;
-            mode = currMB->i4Mode[(block_y<<2)+block_x];
-
-            if (mode == (AVCIntra4x4PredMode)predIntra4x4PredMode)
-            {
-                flag = 1;
-            }
-            else if (mode < predIntra4x4PredMode)
-            {
-                rem = mode;
-            }
-            else
-            {
-                rem = mode - 1;
-            }
-
-            BitstreamWrite1Bit(stream, flag);
-
-            if (!flag)
-            {
-                BitstreamWriteBits(stream, 3, rem);
-            }
-
-            bindx++;
-            block_y += (SubBlock_indx & 1) ;
-            block_x += (1 - 2 * (SubBlock_indx & 1)) ;
-        }
-    }
-
-    return AVCENC_SUCCESS;
-}
-
-
-
diff --git a/media/libstagefright/codecs/avc/enc/src/vlc_encode.cpp b/media/libstagefright/codecs/avc/enc/src/vlc_encode.cpp
deleted file mode 100644
index 222e709..0000000
--- a/media/libstagefright/codecs/avc/enc/src/vlc_encode.cpp
+++ /dev/null
@@ -1,336 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include "avcenc_lib.h"
-
-/**
-See algorithm in subclause 9.1, Table 9-1, Table 9-2. */
-AVCEnc_Status ue_v(AVCEncBitstream *bitstream, uint codeNum)
-{
-    if (AVCENC_SUCCESS != SetEGBitstring(bitstream, codeNum))
-        return AVCENC_FAIL;
-
-    return AVCENC_SUCCESS;
-}
-
-/**
-See subclause 9.1.1, Table 9-3 */
-AVCEnc_Status  se_v(AVCEncBitstream *bitstream, int value)
-{
-    uint codeNum;
-    AVCEnc_Status status;
-
-    if (value <= 0)
-    {
-        codeNum = -value * 2;
-    }
-    else
-    {
-        codeNum = value * 2 - 1;
-    }
-
-    status = ue_v(bitstream, codeNum);
-
-    return status;
-}
-
-AVCEnc_Status te_v(AVCEncBitstream *bitstream, uint value, uint range)
-{
-    AVCEnc_Status status;
-
-    if (range > 1)
-    {
-        return ue_v(bitstream, value);
-    }
-    else
-    {
-        status = BitstreamWrite1Bit(bitstream, 1 - value);
-        return status;
-    }
-}
-
-/**
-See subclause 9.1, Table 9-1, 9-2. */
-// compute leadingZeros and inforbits
-//codeNum = (1<<leadingZeros)-1+infobits;
-AVCEnc_Status SetEGBitstring(AVCEncBitstream *bitstream, uint codeNum)
-{
-    AVCEnc_Status status;
-    int leadingZeros;
-    int infobits;
-
-    if (!codeNum)
-    {
-        status = BitstreamWrite1Bit(bitstream, 1);
-        return status;
-    }
-
-    /* calculate leadingZeros and infobits */
-    leadingZeros = 1;
-    while ((uint)(1 << leadingZeros) < codeNum + 2)
-    {
-        leadingZeros++;
-    }
-    leadingZeros--;
-    infobits = codeNum - (1 << leadingZeros) + 1;
-
-    status = BitstreamWriteBits(bitstream, leadingZeros, 0);
-    infobits |= (1 << leadingZeros);
-    status = BitstreamWriteBits(bitstream, leadingZeros + 1, infobits);
-    return status;
-}
-
-/* see Table 9-4 assignment of codeNum to values of coded_block_pattern. */
-const static uint8 MapCBP2code[48][2] =
-{
-    {3, 0}, {29, 2}, {30, 3}, {17, 7}, {31, 4}, {18, 8}, {37, 17}, {8, 13}, {32, 5}, {38, 18}, {19, 9}, {9, 14},
-    {20, 10}, {10, 15}, {11, 16}, {2, 11}, {16, 1}, {33, 32}, {34, 33}, {21, 36}, {35, 34}, {22, 37}, {39, 44}, {4, 40},
-    {36, 35}, {40, 45}, {23, 38}, {5, 41}, {24, 39}, {6, 42}, {7, 43}, {1, 19}, {41, 6}, {42, 24}, {43, 25}, {25, 20},
-    {44, 26}, {26, 21}, {46, 46}, {12, 28}, {45, 27}, {47, 47}, {27, 22}, {13, 29}, {28, 23}, {14, 30}, {15, 31}, {0, 12}
-};
-
-AVCEnc_Status EncodeCBP(AVCMacroblock *currMB, AVCEncBitstream *stream)
-{
-    AVCEnc_Status status;
-    uint codeNum;
-
-    if (currMB->mbMode == AVC_I4)
-    {
-        codeNum = MapCBP2code[currMB->CBP][0];
-    }
-    else
-    {
-        codeNum = MapCBP2code[currMB->CBP][1];
-    }
-
-    status = ue_v(stream, codeNum);
-
-    return status;
-}
-
-AVCEnc_Status ce_TotalCoeffTrailingOnes(AVCEncBitstream *stream, int TrailingOnes, int TotalCoeff, int nC)
-{
-    const static uint8 totCoeffTrailOne[3][4][17][2] =
-    {
-        {   // 0702
-            {{1, 1}, {6, 5}, {8, 7}, {9, 7}, {10, 7}, {11, 7}, {13, 15}, {13, 11}, {13, 8}, {14, 15}, {14, 11}, {15, 15}, {15, 11}, {16, 15}, {16, 11}, {16, 7}, {16, 4}},
-            {{0, 0}, {2, 1}, {6, 4}, {8, 6}, {9, 6}, {10, 6}, {11, 6}, {13, 14}, {13, 10}, {14, 14}, {14, 10}, {15, 14}, {15, 10}, {15, 1}, {16, 14}, {16, 10}, {16, 6}},
-            {{0, 0}, {0, 0}, {3, 1}, {7, 5}, {8, 5}, {9, 5}, {10, 5}, {11, 5}, {13, 13}, {13, 9}, {14, 13}, {14, 9}, {15, 13}, {15, 9}, {16, 13}, {16, 9}, {16, 5}},
-            {{0, 0}, {0, 0}, {0, 0}, {5, 3}, {6, 3}, {7, 4}, {8, 4}, {9, 4}, {10, 4}, {11, 4}, {13, 12}, {14, 12}, {14, 8}, {15, 12}, {15, 8}, {16, 12}, {16, 8}},
-        },
-        {
-            {{2, 3}, {6, 11}, {6, 7}, {7, 7}, {8, 7}, {8, 4}, {9, 7}, {11, 15}, {11, 11}, {12, 15}, {12, 11}, {12, 8}, {13, 15}, {13, 11}, {13, 7}, {14, 9}, {14, 7}},
-            {{0, 0}, {2, 2}, {5, 7}, {6, 10}, {6, 6}, {7, 6}, {8, 6}, {9, 6}, {11, 14}, {11, 10}, {12, 14}, {12, 10}, {13, 14}, {13, 10}, {14, 11}, {14, 8}, {14, 6}},
-            {{0, 0}, {0, 0}, {3, 3}, {6, 9}, {6, 5}, {7, 5}, {8, 5}, {9, 5}, {11, 13}, {11, 9}, {12, 13}, {12, 9}, {13, 13}, {13, 9}, {13, 6}, {14, 10}, {14, 5}},
-            {{0, 0}, {0, 0}, {0, 0}, {4, 5}, {4, 4}, {5, 6}, {6, 8}, {6, 4}, {7, 4}, {9, 4}, {11, 12}, {11, 8}, {12, 12}, {13, 12}, {13, 8}, {13, 1}, {14, 4}},
-        },
-        {
-            {{4, 15}, {6, 15}, {6, 11}, {6, 8}, {7, 15}, {7, 11}, {7, 9}, {7, 8}, {8, 15}, {8, 11}, {9, 15}, {9, 11}, {9, 8}, {10, 13}, {10, 9}, {10, 5}, {10, 1}},
-            {{0, 0}, {4, 14}, {5, 15}, {5, 12}, {5, 10}, {5, 8}, {6, 14}, {6, 10}, {7, 14}, {8, 14}, {8, 10}, {9, 14}, {9, 10}, {9, 7}, {10, 12}, {10, 8}, {10, 4}},
-            {{0, 0}, {0, 0}, {4, 13}, {5, 14}, {5, 11}, {5, 9}, {6, 13}, {6, 9}, {7, 13}, {7, 10}, {8, 13}, {8, 9}, {9, 13}, {9, 9}, {10, 11}, {10, 7}, {10, 3}},
-            {{0, 0}, {0, 0}, {0, 0}, {4, 12}, {4, 11}, {4, 10}, {4, 9}, {4, 8}, {5, 13}, {6, 12}, {7, 12}, {8, 12}, {8, 8}, {9, 12}, {10, 10}, {10, 6}, {10, 2}}
-        }
-    };
-
-
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    uint code, len;
-    int vlcnum;
-
-    if (TrailingOnes > 3)
-    {
-        return AVCENC_TRAILINGONES_FAIL;
-    }
-
-    if (nC >= 8)
-    {
-        if (TotalCoeff)
-        {
-            code = ((TotalCoeff - 1) << 2) | (TrailingOnes);
-        }
-        else
-        {
-            code = 3;
-        }
-        status = BitstreamWriteBits(stream, 6, code);
-    }
-    else
-    {
-        if (nC < 2)
-        {
-            vlcnum = 0;
-        }
-        else if (nC < 4)
-        {
-            vlcnum = 1;
-        }
-        else
-        {
-            vlcnum = 2;
-        }
-
-        len = totCoeffTrailOne[vlcnum][TrailingOnes][TotalCoeff][0];
-        code = totCoeffTrailOne[vlcnum][TrailingOnes][TotalCoeff][1];
-        status = BitstreamWriteBits(stream, len, code);
-    }
-
-    return status;
-}
-
-AVCEnc_Status ce_TotalCoeffTrailingOnesChromaDC(AVCEncBitstream *stream, int TrailingOnes, int TotalCoeff)
-{
-    const static uint8 totCoeffTrailOneChrom[4][5][2] =
-    {
-        { {2, 1}, {6, 7}, {6, 4}, {6, 3}, {6, 2}},
-        { {0, 0}, {1, 1}, {6, 6}, {7, 3}, {8, 3}},
-        { {0, 0}, {0, 0}, {3, 1}, {7, 2}, {8, 2}},
-        { {0, 0}, {0, 0}, {0, 0}, {6, 5}, {7, 0}},
-    };
-
-    AVCEnc_Status status = AVCENC_SUCCESS;
-    uint code, len;
-
-    len = totCoeffTrailOneChrom[TrailingOnes][TotalCoeff][0];
-    code = totCoeffTrailOneChrom[TrailingOnes][TotalCoeff][1];
-    status = BitstreamWriteBits(stream, len, code);
-
-    return status;
-}
-
-/* see Table 9-7 and 9-8 */
-AVCEnc_Status ce_TotalZeros(AVCEncBitstream *stream, int total_zeros, int TotalCoeff)
-{
-    const static uint8 lenTotalZeros[15][16] =
-    {
-        { 1, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 9},
-        { 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 6, 6, 6, 6},
-        { 4, 3, 3, 3, 4, 4, 3, 3, 4, 5, 5, 6, 5, 6},
-        { 5, 3, 4, 4, 3, 3, 3, 4, 3, 4, 5, 5, 5},
-        { 4, 4, 4, 3, 3, 3, 3, 3, 4, 5, 4, 5},
-        { 6, 5, 3, 3, 3, 3, 3, 3, 4, 3, 6},
-        { 6, 5, 3, 3, 3, 2, 3, 4, 3, 6},
-        { 6, 4, 5, 3, 2, 2, 3, 3, 6},
-        { 6, 6, 4, 2, 2, 3, 2, 5},
-        { 5, 5, 3, 2, 2, 2, 4},
-        { 4, 4, 3, 3, 1, 3},
-        { 4, 4, 2, 1, 3},
-        { 3, 3, 1, 2},
-        { 2, 2, 1},
-        { 1, 1},
-    };
-
-    const static uint8 codTotalZeros[15][16] =
-    {
-        {1, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1},
-        {7, 6, 5, 4, 3, 5, 4, 3, 2, 3, 2, 3, 2, 1, 0},
-        {5, 7, 6, 5, 4, 3, 4, 3, 2, 3, 2, 1, 1, 0},
-        {3, 7, 5, 4, 6, 5, 4, 3, 3, 2, 2, 1, 0},
-        {5, 4, 3, 7, 6, 5, 4, 3, 2, 1, 1, 0},
-        {1, 1, 7, 6, 5, 4, 3, 2, 1, 1, 0},
-        {1, 1, 5, 4, 3, 3, 2, 1, 1, 0},
-        {1, 1, 1, 3, 3, 2, 2, 1, 0},
-        {1, 0, 1, 3, 2, 1, 1, 1, },
-        {1, 0, 1, 3, 2, 1, 1, },
-        {0, 1, 1, 2, 1, 3},
-        {0, 1, 1, 1, 1},
-        {0, 1, 1, 1},
-        {0, 1, 1},
-        {0, 1},
-    };
-    int len, code;
-    AVCEnc_Status status;
-
-    len = lenTotalZeros[TotalCoeff-1][total_zeros];
-    code = codTotalZeros[TotalCoeff-1][total_zeros];
-
-    status = BitstreamWriteBits(stream, len, code);
-
-    return status;
-}
-
-/* see Table 9-9 */
-AVCEnc_Status ce_TotalZerosChromaDC(AVCEncBitstream *stream, int total_zeros, int TotalCoeff)
-{
-    const static uint8 lenTotalZerosChromaDC[3][4] =
-    {
-        { 1, 2, 3, 3, },
-        { 1, 2, 2, 0, },
-        { 1, 1, 0, 0, },
-    };
-
-    const static uint8 codTotalZerosChromaDC[3][4] =
-    {
-        { 1, 1, 1, 0, },
-        { 1, 1, 0, 0, },
-        { 1, 0, 0, 0, },
-    };
-
-    int len, code;
-    AVCEnc_Status status;
-
-    len = lenTotalZerosChromaDC[TotalCoeff-1][total_zeros];
-    code = codTotalZerosChromaDC[TotalCoeff-1][total_zeros];
-
-    status = BitstreamWriteBits(stream, len, code);
-
-    return status;
-}
-
-/* see Table 9-10 */
-AVCEnc_Status ce_RunBefore(AVCEncBitstream *stream, int run_before, int zerosLeft)
-{
-    const static uint8 lenRunBefore[7][16] =
-    {
-        {1, 1},
-        {1, 2, 2},
-        {2, 2, 2, 2},
-        {2, 2, 2, 3, 3},
-        {2, 2, 3, 3, 3, 3},
-        {2, 3, 3, 3, 3, 3, 3},
-        {3, 3, 3, 3, 3, 3, 3, 4, 5, 6, 7, 8, 9, 10, 11},
-    };
-
-    const static uint8 codRunBefore[7][16] =
-    {
-        {1, 0},
-        {1, 1, 0},
-        {3, 2, 1, 0},
-        {3, 2, 1, 1, 0},
-        {3, 2, 3, 2, 1, 0},
-        {3, 0, 1, 3, 2, 5, 4},
-        {7, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1},
-    };
-
-    int len, code;
-    AVCEnc_Status status;
-
-    if (zerosLeft <= 6)
-    {
-        len = lenRunBefore[zerosLeft-1][run_before];
-        code = codRunBefore[zerosLeft-1][run_before];
-    }
-    else
-    {
-        len = lenRunBefore[6][run_before];
-        code = codRunBefore[6][run_before];
-    }
-
-    status = BitstreamWriteBits(stream, len, code);
-
-
-    return status;
-}
diff --git a/media/libstagefright/codecs/avc/enc/test/h264_enc_test.cpp b/media/libstagefright/codecs/avc/enc/test/h264_enc_test.cpp
deleted file mode 100644
index 7a782a8..0000000
--- a/media/libstagefright/codecs/avc/enc/test/h264_enc_test.cpp
+++ /dev/null
@@ -1,357 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include <assert.h>
-#include <stdlib.h>
-
-#include "avcenc_api.h"
-#include "avcenc_int.h"
-
-// Constants.
-enum {
-    kMaxWidth         = 720,
-    kMaxHeight        = 480,
-    kMaxFrameRate     = 30,
-    kMaxBitrate       = 2048, // in kbps.
-    kInputBufferSize  = (kMaxWidth * kMaxHeight * 3) / 2, // For YUV 420 format.
-    kOutputBufferSize = kInputBufferSize,
-    kMaxDpbBuffers    = 17,
-    kIDRFrameRefreshIntervalInSec = 1,
-};
-
-
-static void *MallocCb(void * /*userData*/, int32_t size, int32_t /*attrs*/) {
-    void *ptr = calloc(size, 1);
-    return ptr;
-}
-
-static void FreeCb(void * /*userData*/, void *ptr) {
-    free(ptr);
-}
-
-static int32_t DpbAllocCb(void * /*userData*/,
-        unsigned int sizeInMbs, unsigned int numBuffers) {
-
-    size_t frameSize = (sizeInMbs << 7) * 3;
-    if(numBuffers < kMaxDpbBuffers && frameSize <= kInputBufferSize) {
-        return 1;
-    } else {
-        return 0;
-    }
-}
-
-static int32_t BindFrameCb(void *userData, int32_t index, uint8_t **yuv) {
-     assert(index < kMaxDpbBuffers);
-     uint8_t** dpbBuffer = static_cast<uint8_t**>(userData);
-     *yuv = dpbBuffer[index];
-     return 1;
-}
-
-static void UnbindFrameCb(void * /*userData*/, int32_t /*index*/) {
-}
-
-int main(int argc, char *argv[]) {
-
-    if (argc < 7) {
-        fprintf(stderr, "Usage %s <input yuv> <output file> <width> <height>"
-                        " <frame rate> <bitrate in kbps>\n", argv[0]);
-        fprintf(stderr, "Max width %d\n", kMaxWidth);
-        fprintf(stderr, "Max height %d\n", kMaxHeight);
-        fprintf(stderr, "Max framerate %d\n", kMaxFrameRate);
-        fprintf(stderr, "Max bitrate %d kbps\n", kMaxBitrate);
-        return EXIT_FAILURE;
-    }
-
-    // Read height and width.
-    int32_t width;
-    int32_t height;
-    width = atoi(argv[3]);
-    height = atoi(argv[4]);
-    if (width > kMaxWidth || height > kMaxHeight || width <= 0 || height <= 0) {
-        fprintf(stderr, "Unsupported dimensions %dx%d\n", width, height);
-        return EXIT_FAILURE;
-    }
-
-    if (width % 16 != 0 || height % 16 != 0) {
-        fprintf(stderr, "Video frame size %dx%d must be a multiple of 16\n",
-            width, height);
-        return EXIT_FAILURE;
-    }
-
-    // Read frame rate.
-    int32_t frameRate;
-    frameRate = atoi(argv[5]);
-    if (frameRate > kMaxFrameRate || frameRate <= 0) {
-        fprintf(stderr, "Unsupported frame rate %d\n", frameRate);
-        return EXIT_FAILURE;
-    }
-
-    // Read bit rate.
-    int32_t bitrate;
-    bitrate = atoi(argv[6]);
-    if (bitrate > kMaxBitrate || bitrate <= 0) {
-        fprintf(stderr, "Unsupported bitrate %d\n", bitrate);
-        return EXIT_FAILURE;
-    }
-    bitrate *= 1024; // kbps to bps.
-
-    // Open the input file.
-    FILE *fpInput = fopen(argv[1], "rb");
-    if (!fpInput) {
-        fprintf(stderr, "Could not open %s\n", argv[1]);
-        return EXIT_FAILURE;
-    }
-
-    // Open the output file.
-    FILE *fpOutput = fopen(argv[2], "wb");
-    if (!fpOutput) {
-        fprintf(stderr, "Could not open %s\n", argv[2]);
-        fclose(fpInput);
-        return EXIT_FAILURE;
-    }
-
-    // Allocate input buffer.
-    uint8_t *inputBuf = (uint8_t *)malloc(kInputBufferSize);
-    assert(inputBuf != NULL);
-
-    // Allocate output buffer.
-    uint8_t *outputBuf = (uint8_t *)malloc(kOutputBufferSize);
-    assert(outputBuf != NULL);
-
-    // Allocate dpb buffers.
-    uint8_t * dpbBuffers[kMaxDpbBuffers];
-    for (int i = 0; i < kMaxDpbBuffers; ++i) {
-        dpbBuffers[i] = (uint8_t *)malloc(kInputBufferSize);
-        assert(dpbBuffers[i] != NULL);
-    }
-
-    // Initialize the encoder parameters.
-    tagAVCEncParam encParams;
-    memset(&encParams, 0, sizeof(tagAVCEncParam));
-    encParams.rate_control = AVC_ON;
-    encParams.initQP = 0;
-    encParams.init_CBP_removal_delay = 1600;
-
-    encParams.intramb_refresh = 0;
-    encParams.auto_scd = AVC_ON;
-    encParams.out_of_band_param_set = AVC_ON;
-    encParams.poc_type = 2;
-    encParams.log2_max_poc_lsb_minus_4 = 12;
-    encParams.delta_poc_zero_flag = 0;
-    encParams.offset_poc_non_ref = 0;
-    encParams.offset_top_bottom = 0;
-    encParams.num_ref_in_cycle = 0;
-    encParams.offset_poc_ref = NULL;
-
-    encParams.num_ref_frame = 1;
-    encParams.num_slice_group = 1;
-    encParams.fmo_type = 0;
-
-    encParams.db_filter = AVC_ON;
-    encParams.disable_db_idc = 0;
-
-    encParams.alpha_offset = 0;
-    encParams.beta_offset = 0;
-    encParams.constrained_intra_pred = AVC_OFF;
-
-    encParams.data_par = AVC_OFF;
-    encParams.fullsearch = AVC_OFF;
-    encParams.search_range = 16;
-    encParams.sub_pel = AVC_OFF;
-    encParams.submb_pred = AVC_OFF;
-    encParams.rdopt_mode = AVC_OFF;
-    encParams.bidir_pred = AVC_OFF;
-
-    encParams.use_overrun_buffer = AVC_OFF;
-
-    encParams.width = width;
-    encParams.height = height;
-    encParams.bitrate = bitrate;
-    encParams.frame_rate = 1000 * frameRate;  // In frames/ms.
-    encParams.CPB_size = (uint32_t) (bitrate >> 1);
-
-    int32_t  IDRFrameRefreshIntervalInSec = kIDRFrameRefreshIntervalInSec;
-    if (IDRFrameRefreshIntervalInSec == 0) {
-        encParams.idr_period = 1;  // All I frames.
-    } else {
-        encParams.idr_period = (IDRFrameRefreshIntervalInSec * frameRate);
-    }
-
-    int32_t nMacroBlocks = ((((width + 15) >> 4) << 4) *
-            (((height + 15) >> 4) << 4)) >> 8;
-    uint32_t *sliceGroup = (uint32_t *) malloc(sizeof(uint32_t) * nMacroBlocks);
-    assert(sliceGroup != NULL);
-    for (int i = 0, idx = 0; i < nMacroBlocks; ++i) {
-        sliceGroup[i] = idx++;
-        if (idx >= encParams.num_slice_group) {
-            idx = 0;
-        }
-    }
-    encParams.slice_group = sliceGroup;
-    encParams.profile = AVC_BASELINE;
-    encParams.level = AVC_LEVEL2;
-
-    // Initialize the handle.
-    tagAVCHandle handle;
-    memset(&handle, 0, sizeof(tagAVCHandle));
-    handle.AVCObject = NULL;
-    handle.userData = dpbBuffers;
-    handle.CBAVC_DPBAlloc = DpbAllocCb;
-    handle.CBAVC_FrameBind = BindFrameCb;
-    handle.CBAVC_FrameUnbind = UnbindFrameCb;
-    handle.CBAVC_Malloc = MallocCb;
-    handle.CBAVC_Free = FreeCb;
-
-    // Initialize the encoder.
-    AVCEnc_Status status;
-    status = PVAVCEncInitialize(&handle, &encParams, NULL, NULL);
-    if (status != AVCENC_SUCCESS) {
-        fprintf(stderr, "Failed to initialize the encoder\n");
-
-        // Release resources.
-        fclose(fpInput);
-        fclose(fpOutput);
-        free(sliceGroup);
-        free(inputBuf);
-        free(outputBuf);
-        for (int i = 0; i < kMaxDpbBuffers; ++i) {
-            free(dpbBuffers[i]);
-        }
-        return EXIT_FAILURE;
-    }
-
-    // Encode Sequence Parameter Set.
-    uint32_t dataLength = kOutputBufferSize;
-    int32_t type;
-    status = PVAVCEncodeNAL(&handle, outputBuf, &dataLength, &type);
-    assert(type == AVC_NALTYPE_SPS);
-    fwrite("\x00\x00\x00\x01", 1, 4, fpOutput); // Start Code.
-    fwrite(outputBuf, 1, dataLength, fpOutput); // SPS.
-
-    // Encode Picture Paramater Set.
-    dataLength = kOutputBufferSize;
-    status = PVAVCEncodeNAL(&handle, outputBuf, &dataLength, &type);
-    assert(type == AVC_NALTYPE_PPS);
-    fwrite("\x00\x00\x00\x01", 1, 4, fpOutput); // Start Code.
-    fwrite(outputBuf, 1, dataLength, fpOutput); // PPS.
-
-    // Core loop.
-    int32_t retVal = EXIT_SUCCESS;
-    int32_t frameSize = (width * height * 3) / 2;
-    int32_t numInputFrames = 0;
-    int32_t numNalEncoded = 0;
-    bool readyForNextFrame = true;
-
-    while (1) {
-        if (readyForNextFrame == true) {
-            // Read the input frame.
-            int32_t bytesRead;
-            bytesRead = fread(inputBuf, 1, frameSize, fpInput);
-            if (bytesRead != frameSize) {
-                break; // End of file.
-            }
-
-            // Set the input frame.
-            AVCFrameIO vin;
-            memset(&vin, 0, sizeof(vin));
-            vin.height = ((height + 15) >> 4) << 4;
-            vin.pitch  = ((width  + 15) >> 4) << 4;
-            vin.coding_timestamp = (numInputFrames * 1000) / frameRate;  // in ms
-            vin.YCbCr[0] = inputBuf;
-            vin.YCbCr[1] = vin.YCbCr[0] + vin.height * vin.pitch;
-            vin.YCbCr[2] = vin.YCbCr[1] + ((vin.height * vin.pitch) >> 2);
-            vin.disp_order = numInputFrames;
-
-            status = PVAVCEncSetInput(&handle, &vin);
-            if (status == AVCENC_SUCCESS || status == AVCENC_NEW_IDR) {
-                readyForNextFrame = false;
-                ++numInputFrames;
-            } else if (status < AVCENC_SUCCESS) {
-                fprintf(stderr, "Error %d while setting input frame\n", status);
-                retVal = EXIT_FAILURE;
-                break;
-            } else {
-                fprintf(stderr, "Frame drop\n");
-                readyForNextFrame = true;
-                ++numInputFrames;
-                continue;
-            }
-        }
-
-        // Encode the input frame.
-        dataLength = kOutputBufferSize;
-        status = PVAVCEncodeNAL(&handle, outputBuf, &dataLength, &type);
-        if (status == AVCENC_SUCCESS) {
-            PVAVCEncGetOverrunBuffer(&handle);
-        } else if (status == AVCENC_PICTURE_READY) {
-            PVAVCEncGetOverrunBuffer(&handle);
-            readyForNextFrame = true;
-            AVCFrameIO recon;
-            if (PVAVCEncGetRecon(&handle, &recon) == AVCENC_SUCCESS) {
-                PVAVCEncReleaseRecon(&handle, &recon);
-            }
-        } else {
-            dataLength = 0;
-            readyForNextFrame = true;
-        }
-
-        if (status < AVCENC_SUCCESS) {
-            fprintf(stderr, "Error %d while encoding frame\n", status);
-            retVal = EXIT_FAILURE;
-            break;
-        }
-
-        numNalEncoded++;
-
-        // Write the output.
-        if (dataLength > 0) {
-            fwrite("\x00\x00\x00\x01", 1, 4, fpOutput); // Start Code.
-            fwrite(outputBuf, 1, dataLength, fpOutput); // NAL.
-            printf("NAL %d of size %d written\n", numNalEncoded, dataLength + 4);
-        }
-    }
-
-    // Close input and output file.
-    fclose(fpInput);
-    fclose(fpOutput);
-
-    // Free allocated memory.
-    free(sliceGroup);
-    free(inputBuf);
-    free(outputBuf);
-    for (int i = 0; i < kMaxDpbBuffers; ++i) {
-        free(dpbBuffers[i]);
-    }
-
-    // Close encoder instance.
-    PVAVCCleanUpEncoder(&handle);
-
-    return retVal;
-}
diff --git a/media/libstagefright/codecs/avc/patent_disclaimer.txt b/media/libstagefright/codecs/avc/patent_disclaimer.txt
deleted file mode 100644
index b4bf11d..0000000
--- a/media/libstagefright/codecs/avc/patent_disclaimer.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-
-THIS IS NOT A GRANT OF PATENT RIGHTS.
-
-Google makes no representation or warranty that the codecs for which
-source code is made available hereunder are unencumbered by
-third-party patents.  Those intending to use this source code in
-hardware or software products are advised that implementations of
-these codecs, including in open source software or shareware, may
-require patent licenses from the relevant patent holders.
diff --git a/media/libstagefright/codecs/avcdec/Android.mk b/media/libstagefright/codecs/avcdec/Android.mk
index ef0dbfd..8c894fd 100644
--- a/media/libstagefright/codecs/avcdec/Android.mk
+++ b/media/libstagefright/codecs/avcdec/Android.mk
@@ -14,14 +14,15 @@
 LOCAL_C_INCLUDES += $(TOP)/frameworks/av/media/libstagefright/include
 LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/openmax
 
-LOCAL_SHARED_LIBRARIES  := libstagefright
+LOCAL_SHARED_LIBRARIES  := libmedia
 LOCAL_SHARED_LIBRARIES  += libstagefright_omx
 LOCAL_SHARED_LIBRARIES  += libstagefright_foundation
 LOCAL_SHARED_LIBRARIES  += libutils
 LOCAL_SHARED_LIBRARIES  += liblog
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_LDFLAGS := -Wl,-Bsymbolic
 
diff --git a/media/libstagefright/codecs/avcdec/SoftAVCDec.cpp b/media/libstagefright/codecs/avcdec/SoftAVCDec.cpp
index 1f47155..0db011c 100644
--- a/media/libstagefright/codecs/avcdec/SoftAVCDec.cpp
+++ b/media/libstagefright/codecs/avcdec/SoftAVCDec.cpp
@@ -27,11 +27,10 @@
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/MediaDefs.h>
 #include <OMX_VideoExt.h>
+#include <inttypes.h>
 
 namespace android {
 
-#define PRINT_TIME  ALOGV
-
 #define componentName                   "video_decoder.avc"
 #define codingType                      OMX_VIDEO_CodingAVC
 #define CODEC_MIME_TYPE                 MEDIA_MIMETYPE_VIDEO_AVC
@@ -49,58 +48,10 @@
         (IVD_CONTROL_API_COMMAND_TYPE_T)IH264D_CMD_CTL_SET_NUM_CORES
 
 static const CodecProfileLevel kProfileLevels[] = {
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel1  },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel1b },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel11 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel12 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel13 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel2  },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel21 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel22 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel3  },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel31 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel32 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel4  },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel41 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel42 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel5  },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel51 },
     { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel52 },
 
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel1  },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel1b },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel11 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel12 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel13 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel2  },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel21 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel22 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel3  },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel31 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel32 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel4  },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel41 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel42 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel5  },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel51 },
     { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel52 },
 
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel1  },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel1b },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel11 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel12 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel13 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel2  },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel21 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel22 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel3  },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel31 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel32 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel4  },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel41 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel42 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel5  },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel51 },
     { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel52 },
 };
 
@@ -120,12 +71,13 @@
       mIvColorFormat(IV_YUV_420P),
       mChangingResolution(false),
       mSignalledError(false),
-      mStride(mWidth){
+      mStride(mWidth),
+      mInputOffset(0){
     initPorts(
             1 /* numMinInputBuffers */, kNumBuffers, INPUT_BUF_SIZE,
             1 /* numMinOutputBuffers */, kNumBuffers, CODEC_MIME_TYPE);
 
-    GETTIME(&mTimeStart, NULL);
+    mTimeStart = mTimeEnd = systemTime();
 
     // If input dump is enabled, then open create an empty file
     GENERATE_FILE_NAMES();
@@ -215,12 +167,12 @@
 status_t SoftAVC::resetPlugin() {
     mIsInFlush = false;
     mReceivedEOS = false;
+    mInputOffset = 0;
     memset(mTimeStamps, 0, sizeof(mTimeStamps));
     memset(mTimeStampsValid, 0, sizeof(mTimeStampsValid));
 
     /* Initialize both start and end times */
-    gettimeofday(&mTimeStart, NULL);
-    gettimeofday(&mTimeEnd, NULL);
+    mTimeStart = mTimeEnd = systemTime();
 
     return OK;
 }
@@ -443,8 +395,8 @@
     if (inHeader) {
         ps_dec_ip->u4_ts = timeStampIx;
         ps_dec_ip->pv_stream_buffer =
-            inHeader->pBuffer + inHeader->nOffset;
-        ps_dec_ip->u4_num_Bytes = inHeader->nFilledLen;
+            inHeader->pBuffer + inHeader->nOffset + mInputOffset;
+        ps_dec_ip->u4_num_Bytes = inHeader->nFilledLen - mInputOffset;
     } else {
         ps_dec_ip->u4_ts = 0;
         ps_dec_ip->pv_stream_buffer = NULL;
@@ -515,6 +467,8 @@
 
 void SoftAVC::onQueueFilled(OMX_U32 portIndex) {
     UNUSED(portIndex);
+    OMX_BUFFERHEADERTYPE *inHeader = NULL;
+    BufferInfo *inInfo = NULL;
 
     if (mSignalledError) {
         return;
@@ -541,17 +495,11 @@
     List<BufferInfo *> &outQueue = getPortQueue(kOutputPortIndex);
 
     while (!outQueue.empty()) {
-        BufferInfo *inInfo;
-        OMX_BUFFERHEADERTYPE *inHeader;
-
         BufferInfo *outInfo;
         OMX_BUFFERHEADERTYPE *outHeader;
-        size_t timeStampIx;
+        size_t timeStampIx = 0;
 
-        inInfo = NULL;
-        inHeader = NULL;
-
-        if (!mIsInFlush) {
+        if (!mIsInFlush && (NULL == inHeader)) {
             if (!inQueue.empty()) {
                 inInfo = *inQueue.begin();
                 inHeader = inInfo->mHeader;
@@ -608,7 +556,7 @@
         {
             ivd_video_decode_ip_t s_dec_ip;
             ivd_video_decode_op_t s_dec_op;
-            WORD32 timeDelay, timeTaken;
+            nsecs_t timeDelay, timeTaken;
             size_t sizeY, sizeUV;
 
             if (!setDecodeArgs(&s_dec_ip, &s_dec_op, inHeader, outHeader, timeStampIx)) {
@@ -618,12 +566,12 @@
                 return;
             }
             // If input dump is enabled, then write to file
-            DUMP_TO_FILE(mInFile, s_dec_ip.pv_stream_buffer, s_dec_ip.u4_num_Bytes);
+            DUMP_TO_FILE(mInFile, s_dec_ip.pv_stream_buffer, s_dec_ip.u4_num_Bytes, mInputOffset);
 
-            GETTIME(&mTimeStart, NULL);
+            mTimeStart = systemTime();
             /* Compute time elapsed between end of previous decode()
              * to start of current decode() */
-            TIME_DIFF(mTimeEnd, mTimeStart, timeDelay);
+            timeDelay = mTimeStart - mTimeEnd;
 
             IV_API_CALL_STATUS_T status;
             status = ivdec_api_function(mCodecCtx, (void *)&s_dec_ip, (void *)&s_dec_op);
@@ -651,11 +599,12 @@
 
             getVUIParams();
 
-            GETTIME(&mTimeEnd, NULL);
+            mTimeEnd = systemTime();
             /* Compute time taken for decode() */
-            TIME_DIFF(mTimeStart, mTimeEnd, timeTaken);
+            timeTaken = mTimeEnd - mTimeStart;
 
-            PRINT_TIME("timeTaken=%6d delay=%6d numBytes=%6d", timeTaken, timeDelay,
+            ALOGV("timeTaken=%6lldus delay=%6lldus numBytes=%6d",
+                    (long long) (timeTaken / 1000ll), (long long) (timeDelay / 1000ll),
                    s_dec_op.u4_num_bytes_consumed);
             if (s_dec_op.u4_frame_decoded_flag && !mFlushNeeded) {
                 mFlushNeeded = true;
@@ -695,6 +644,7 @@
                 handlePortSettingsChange(&portWillReset, width, height);
                 if (portWillReset) {
                     resetDecoder();
+                    resetPlugin();
                     return;
                 }
             } else if (mUpdateColorAspects) {
@@ -734,24 +684,26 @@
                     resetPlugin();
                 }
             }
+            mInputOffset += s_dec_op.u4_num_bytes_consumed;
         }
-
-        /* If input EOS is seen and decoder is not in flush mode,
-         * set the decoder in flush mode.
-         * There can be a case where EOS is sent along with last picture data
-         * In that case, only after decoding that input data, decoder has to be
-         * put in flush. This case is handled here  */
-
-        if (mReceivedEOS && !mIsInFlush) {
-            setFlushMode();
-        }
-
-        if (inHeader != NULL) {
+        // If more than 4 bytes are remaining in input, then do not release it
+        if (inHeader != NULL && ((inHeader->nFilledLen - mInputOffset) <= 4)) {
             inInfo->mOwnedByUs = false;
             inQueue.erase(inQueue.begin());
             inInfo = NULL;
             notifyEmptyBufferDone(inHeader);
             inHeader = NULL;
+            mInputOffset = 0;
+
+            /* If input EOS is seen and decoder is not in flush mode,
+             * set the decoder in flush mode.
+             * There can be a case where EOS is sent along with last picture data
+             * In that case, only after decoding that input data, decoder has to be
+             * put in flush. This case is handled here  */
+
+            if (mReceivedEOS && !mIsInFlush) {
+                setFlushMode();
+            }
         }
     }
 }
diff --git a/media/libstagefright/codecs/avcdec/SoftAVCDec.h b/media/libstagefright/codecs/avcdec/SoftAVCDec.h
index 154ca38..18b7556 100644
--- a/media/libstagefright/codecs/avcdec/SoftAVCDec.h
+++ b/media/libstagefright/codecs/avcdec/SoftAVCDec.h
@@ -41,14 +41,6 @@
 /** Used to remove warnings about unused parameters */
 #define UNUSED(x) ((void)(x))
 
-/** Get time */
-#define GETTIME(a, b) gettimeofday(a, b);
-
-/** Compute difference between start and end */
-#define TIME_DIFF(start, end, diff) \
-    diff = ((end.tv_sec - start.tv_sec) * 1000000) + \
-            (end.tv_usec - start.tv_usec);
-
 struct SoftAVC : public SoftVideoDecoderOMXComponent {
     SoftAVC(const char *name, const OMX_CALLBACKTYPE *callbacks,
             OMX_PTR appData, OMX_COMPONENTTYPE **component);
@@ -70,8 +62,8 @@
 
     size_t mNumCores;            // Number of cores to be uesd by the codec
 
-    struct timeval mTimeStart;   // Time at the start of decode()
-    struct timeval mTimeEnd;     // Time at the end of decode()
+    nsecs_t mTimeStart;   // Time at the start of decode()
+    nsecs_t mTimeEnd;     // Time at the end of decode()
 
     // Internal buffer to be used to flush out the buffers from decoder
     uint8_t *mFlushOutBuffer;
@@ -99,6 +91,7 @@
     bool mFlushNeeded;
     bool mSignalledError;
     size_t mStride;
+    size_t mInputOffset;
 
     status_t initDecoder();
     status_t deInitDecoder();
@@ -128,10 +121,9 @@
 #define INPUT_DUMP_EXT      "h264"
 
 #define GENERATE_FILE_NAMES() {                         \
-    GETTIME(&mTimeStart, NULL);                         \
     strcpy(mInFile, "");                                \
-    sprintf(mInFile, "%s_%ld.%ld.%s", INPUT_DUMP_PATH,  \
-            mTimeStart.tv_sec, mTimeStart.tv_usec,      \
+    sprintf(mInFile, "%s_%lld.%s", INPUT_DUMP_PATH,     \
+            (long long) mTimeStart,                     \
             INPUT_DUMP_EXT);                            \
 }
 
@@ -143,10 +135,10 @@
         ALOGD("Could not open file %s", m_filename);    \
     }                                                   \
 }
-#define DUMP_TO_FILE(m_filename, m_buf, m_size)         \
+#define DUMP_TO_FILE(m_filename, m_buf, m_size, m_offset)\
 {                                                       \
     FILE *fp = fopen(m_filename, "ab");                 \
-    if (fp != NULL && m_buf != NULL) {                  \
+    if (fp != NULL && m_buf != NULL && m_offset == 0) { \
         int i;                                          \
         i = fwrite(m_buf, 1, m_size, fp);               \
         ALOGD("fwrite ret %d to write %d", i, m_size);  \
@@ -154,10 +146,12 @@
             ALOGD("Error in fwrite, returned %d", i);   \
             perror("Error in write to file");           \
         }                                               \
-        fclose(fp);                                     \
-    } else {                                            \
+    } else if (fp == NULL) {                            \
         ALOGD("Could not write to file %s", m_filename);\
     }                                                   \
+    if (fp) {                                           \
+        fclose(fp);                                     \
+    }                                                   \
 }
 #else /* FILE_DUMP_ENABLE */
 #define INPUT_DUMP_PATH
@@ -166,7 +160,7 @@
 #define OUTPUT_DUMP_EXT
 #define GENERATE_FILE_NAMES()
 #define CREATE_DUMP_FILE(m_filename)
-#define DUMP_TO_FILE(m_filename, m_buf, m_size)
+#define DUMP_TO_FILE(m_filename, m_buf, m_size, m_offset)
 #endif /* FILE_DUMP_ENABLE */
 
 } // namespace android
diff --git a/media/libstagefright/codecs/avcenc/Android.mk b/media/libstagefright/codecs/avcenc/Android.mk
index 70e531b..23ba208 100644
--- a/media/libstagefright/codecs/avcenc/Android.mk
+++ b/media/libstagefright/codecs/avcenc/Android.mk
@@ -12,19 +12,17 @@
 LOCAL_C_INCLUDES := $(TOP)/external/libavc/encoder
 LOCAL_C_INCLUDES += $(TOP)/external/libavc/common
 LOCAL_C_INCLUDES += $(TOP)/frameworks/av/media/libstagefright/include
-LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/openmax
-LOCAL_C_INCLUDES += $(TOP)/frameworks/av/media/libstagefright/include
 LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/hardware
 LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/openmax
 
-LOCAL_SHARED_LIBRARIES  := libstagefright
+LOCAL_SHARED_LIBRARIES  := libmedia
 LOCAL_SHARED_LIBRARIES  += libstagefright_omx
-LOCAL_SHARED_LIBRARIES  += libstagefright_foundation
 LOCAL_SHARED_LIBRARIES  += libutils
 LOCAL_SHARED_LIBRARIES  += liblog
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_LDFLAGS := -Wl,-Bsymbolic
 
diff --git a/media/libstagefright/codecs/avcenc/SoftAVCEnc.cpp b/media/libstagefright/codecs/avcenc/SoftAVCEnc.cpp
index 5b06722..b1af17b 100644
--- a/media/libstagefright/codecs/avcenc/SoftAVCEnc.cpp
+++ b/media/libstagefright/codecs/avcenc/SoftAVCEnc.cpp
@@ -30,7 +30,6 @@
 #include <media/stagefright/Utils.h>
 #include <OMX_IndexExt.h>
 #include <OMX_VideoExt.h>
-#include <ui/Rect.h>
 
 #include "ih264_typedefs.h"
 #include "iv2.h"
diff --git a/media/libstagefright/codecs/avcenc/SoftAVCEnc.h b/media/libstagefright/codecs/avcenc/SoftAVCEnc.h
index 8b24b62..818e4a1 100644
--- a/media/libstagefright/codecs/avcenc/SoftAVCEnc.h
+++ b/media/libstagefright/codecs/avcenc/SoftAVCEnc.h
@@ -111,8 +111,8 @@
 
 /** Compute difference between start and end */
 #define TIME_DIFF(start, end, diff) \
-    diff = ((end.tv_sec - start.tv_sec) * 1000000) + \
-            (end.tv_usec - start.tv_usec);
+    diff = (((end).tv_sec - (start).tv_sec) * 1000000) + \
+            ((end).tv_usec - (start).tv_usec);
 
 #define ive_aligned_malloc(alignment, size) memalign(alignment, size)
 #define ive_aligned_free(buf) free(buf)
diff --git a/media/libstagefright/codecs/common/include/voAAC.h b/media/libstagefright/codecs/common/include/voAAC.h
index 9ecb142..0a02feb 100644
--- a/media/libstagefright/codecs/common/include/voAAC.h
+++ b/media/libstagefright/codecs/common/include/voAAC.h
@@ -50,7 +50,7 @@
 
 /* AAC Param ID */
 #define VO_PID_AAC_Mdoule				0x42211000
-#define VO_PID_AAC_ENCPARAM				VO_PID_AAC_Mdoule | 0x0040  /*!< get/set AAC encoder parameter, the parameter is a pointer to AACENC_PARAM */
+#define VO_PID_AAC_ENCPARAM				(VO_PID_AAC_Mdoule | 0x0040)  /*!< get/set AAC encoder parameter, the parameter is a pointer to AACENC_PARAM */
 
 /* AAC decoder error ID */
 #define VO_ERR_AAC_Mdoule				0x82210000
diff --git a/media/libstagefright/codecs/common/include/voAudio.h b/media/libstagefright/codecs/common/include/voAudio.h
index d8628ee..98d3f44 100644
--- a/media/libstagefright/codecs/common/include/voAudio.h
+++ b/media/libstagefright/codecs/common/include/voAudio.h
@@ -38,9 +38,9 @@
 #define VO_PID_AUDIO_CHANNELMODE	(VO_PID_AUDIO_BASE | 0X0005)		/*!< The channel mode of audio */
 
 #define	VO_ERR_AUDIO_BASE			0x82000000
-#define VO_ERR_AUDIO_UNSCHANNEL		VO_ERR_AUDIO_BASE | 0x0001
-#define VO_ERR_AUDIO_UNSSAMPLERATE	VO_ERR_AUDIO_BASE | 0x0002
-#define VO_ERR_AUDIO_UNSFEATURE		VO_ERR_AUDIO_BASE | 0x0003
+#define VO_ERR_AUDIO_UNSCHANNEL		(VO_ERR_AUDIO_BASE | 0x0001)
+#define VO_ERR_AUDIO_UNSSAMPLERATE	(VO_ERR_AUDIO_BASE | 0x0002)
+#define VO_ERR_AUDIO_UNSFEATURE		(VO_ERR_AUDIO_BASE | 0x0003)
 
 
 /**
diff --git a/media/libstagefright/codecs/common/include/voIndex.h b/media/libstagefright/codecs/common/include/voIndex.h
index 320a2f8..97b21f3 100644
--- a/media/libstagefright/codecs/common/include/voIndex.h
+++ b/media/libstagefright/codecs/common/include/voIndex.h
@@ -31,26 +31,26 @@
 
 /* Define the module ID */
 #define _MAKE_SOURCE_ID(id, name) \
-VO_INDEX_SRC_##name = _VO_INDEX_SOURCE | id,
+VO_INDEX_SRC_##name = _VO_INDEX_SOURCE | (id),
 
 #define _MAKE_CODEC_ID(id, name) \
-VO_INDEX_DEC_##name = _VO_INDEX_DEC | id, \
-VO_INDEX_ENC_##name = _VO_INDEX_ENC | id,
+VO_INDEX_DEC_##name = _VO_INDEX_DEC | (id), \
+VO_INDEX_ENC_##name = _VO_INDEX_ENC | (id),
 
 #define _MAKE_EFFECT_ID(id, name) \
-VO_INDEX_EFT_##name = _VO_INDEX_EFFECT | id,
+VO_INDEX_EFT_##name = _VO_INDEX_EFFECT | (id),
 
 #define _MAKE_SINK_ID(id, name) \
-VO_INDEX_SNK_##name = _VO_INDEX_SINK | id,
+VO_INDEX_SNK_##name = _VO_INDEX_SINK | (id),
 
 #define _MAKE_FILTER_ID(id, name) \
-VO_INDEX_FLT_##name = _VO_INDEX_FILTER | id,
+VO_INDEX_FLT_##name = _VO_INDEX_FILTER | (id),
 
 #define _MAKE_OMX_ID(id, name) \
-VO_INDEX_OMX_##name = _VO_INDEX_OMX | id,
+VO_INDEX_OMX_##name = _VO_INDEX_OMX | (id),
 
 #define _MAKE_MFW_ID(id, name) \
-VO_INDEX_MFW_##name = _VO_INDEX_MFW | id,
+VO_INDEX_MFW_##name = _VO_INDEX_MFW | (id),
 
 enum
 {
diff --git a/media/libstagefright/codecs/common/include/voMem.h b/media/libstagefright/codecs/common/include/voMem.h
index 8dfb634..2b5aef1 100644
--- a/media/libstagefright/codecs/common/include/voMem.h
+++ b/media/libstagefright/codecs/common/include/voMem.h
@@ -53,8 +53,8 @@
 { \
 	VO_MEM_INFO voMemInfo; \
 	voMemInfo.Size=nSize; \
-	pMemOP->Alloc(ID, &voMemInfo); \
-	pBuff=(VO_PBYTE)voMemInfo.VBuffer; \
+	(pMemOP)->Alloc(ID, &voMemInfo); \
+	(pBuff)=(VO_PBYTE)voMemInfo.VBuffer; \
 }
 
 
diff --git a/media/libstagefright/codecs/flac/enc/Android.mk b/media/libstagefright/codecs/flac/enc/Android.mk
index 7e6e015..8031bf6 100644
--- a/media/libstagefright/codecs/flac/enc/Android.mk
+++ b/media/libstagefright/codecs/flac/enc/Android.mk
@@ -10,11 +10,11 @@
         external/flac/include
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog
+        libmedia libstagefright_omx libstagefright_foundation libutils liblog
 
 LOCAL_STATIC_LIBRARIES := \
         libFLAC \
diff --git a/media/libstagefright/codecs/g711/dec/Android.mk b/media/libstagefright/codecs/g711/dec/Android.mk
index b36c99d..b9a1f8c 100644
--- a/media/libstagefright/codecs/g711/dec/Android.mk
+++ b/media/libstagefright/codecs/g711/dec/Android.mk
@@ -9,13 +9,13 @@
         frameworks/native/include/media/openmax
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog
+        libmedia libstagefright_omx libutils liblog
 
 LOCAL_MODULE := libstagefright_soft_g711dec
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/g711/dec/SoftG711.cpp b/media/libstagefright/codecs/g711/dec/SoftG711.cpp
index 9f7b590..f7c0429 100644
--- a/media/libstagefright/codecs/g711/dec/SoftG711.cpp
+++ b/media/libstagefright/codecs/g711/dec/SoftG711.cpp
@@ -219,7 +219,7 @@
         BufferInfo *outInfo = *outQueue.begin();
         OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
 
-        if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
+        if ((inHeader->nFlags & OMX_BUFFERFLAG_EOS) && inHeader->nFilledLen == 0) {
             inQueue.erase(inQueue.begin());
             inInfo->mOwnedByUs = false;
             notifyEmptyBufferDone(inHeader);
@@ -266,11 +266,15 @@
         outHeader->nFilledLen = inHeader->nFilledLen * sizeof(int16_t);
         outHeader->nFlags = 0;
 
-        inInfo->mOwnedByUs = false;
-        inQueue.erase(inQueue.begin());
-        inInfo = NULL;
-        notifyEmptyBufferDone(inHeader);
-        inHeader = NULL;
+        if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
+            inHeader->nFilledLen = 0;
+        } else {
+            inInfo->mOwnedByUs = false;
+            inQueue.erase(inQueue.begin());
+            inInfo = NULL;
+            notifyEmptyBufferDone(inHeader);
+            inHeader = NULL;
+        }
 
         outInfo->mOwnedByUs = false;
         outQueue.erase(outQueue.begin());
diff --git a/media/libstagefright/codecs/gsm/dec/Android.mk b/media/libstagefright/codecs/gsm/dec/Android.mk
index fe8c830..401b56c 100644
--- a/media/libstagefright/codecs/gsm/dec/Android.mk
+++ b/media/libstagefright/codecs/gsm/dec/Android.mk
@@ -10,11 +10,11 @@
         external/libgsm/inc
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog
+        libmedia libstagefright_omx libutils liblog
 
 LOCAL_STATIC_LIBRARIES := \
         libgsm
diff --git a/media/libstagefright/codecs/gsm/dec/SoftGSM.cpp b/media/libstagefright/codecs/gsm/dec/SoftGSM.cpp
index 04d5a33..11999b4 100644
--- a/media/libstagefright/codecs/gsm/dec/SoftGSM.cpp
+++ b/media/libstagefright/codecs/gsm/dec/SoftGSM.cpp
@@ -202,7 +202,7 @@
         BufferInfo *outInfo = *outQueue.begin();
         OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
 
-        if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
+        if ((inHeader->nFlags & OMX_BUFFERFLAG_EOS) && inHeader->nFilledLen == 0) {
             inQueue.erase(inQueue.begin());
             inInfo->mOwnedByUs = false;
             notifyEmptyBufferDone(inHeader);
@@ -246,11 +246,15 @@
         outHeader->nFilledLen = n * sizeof(int16_t);
         outHeader->nFlags = 0;
 
-        inInfo->mOwnedByUs = false;
-        inQueue.erase(inQueue.begin());
-        inInfo = NULL;
-        notifyEmptyBufferDone(inHeader);
-        inHeader = NULL;
+        if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
+            inHeader->nFilledLen = 0;
+        } else {
+            inInfo->mOwnedByUs = false;
+            inQueue.erase(inQueue.begin());
+            inInfo = NULL;
+            notifyEmptyBufferDone(inHeader);
+            inHeader = NULL;
+        }
 
         outInfo->mOwnedByUs = false;
         outQueue.erase(outQueue.begin());
diff --git a/media/libstagefright/codecs/hevcdec/Android.mk b/media/libstagefright/codecs/hevcdec/Android.mk
index 78c4637..11c1b89 100644
--- a/media/libstagefright/codecs/hevcdec/Android.mk
+++ b/media/libstagefright/codecs/hevcdec/Android.mk
@@ -13,10 +13,10 @@
 LOCAL_C_INCLUDES += $(TOP)/external/libhevc/common
 LOCAL_C_INCLUDES += $(TOP)/frameworks/av/media/libstagefright/include
 LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/openmax
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
-LOCAL_SHARED_LIBRARIES  := libstagefright
+LOCAL_SHARED_LIBRARIES  := libmedia
 LOCAL_SHARED_LIBRARIES  += libstagefright_omx
 LOCAL_SHARED_LIBRARIES  += libstagefright_foundation
 LOCAL_SHARED_LIBRARIES  += libutils
diff --git a/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp b/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp
index 5c70387..2745087 100644
--- a/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp
+++ b/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp
@@ -48,14 +48,6 @@
         (IVD_CONTROL_API_COMMAND_TYPE_T)IHEVCD_CXA_CMD_CTL_SET_NUM_CORES
 
 static const CodecProfileLevel kProfileLevels[] = {
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel1  },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel2  },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel21 },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel3  },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel31 },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel4  },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel41 },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel5  },
     { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel51 },
 };
 
@@ -643,6 +635,7 @@
 
                 if (portWillReset) {
                     resetDecoder();
+                    resetPlugin();
                     return;
                 }
             } else if (mUpdateColorAspects) {
diff --git a/media/libstagefright/codecs/hevcdec/SoftHEVC.h b/media/libstagefright/codecs/hevcdec/SoftHEVC.h
index 20a836b..e7c2127 100644
--- a/media/libstagefright/codecs/hevcdec/SoftHEVC.h
+++ b/media/libstagefright/codecs/hevcdec/SoftHEVC.h
@@ -46,8 +46,8 @@
 
 /** Compute difference between start and end */
 #define TIME_DIFF(start, end, diff) \
-    diff = ((end.tv_sec - start.tv_sec) * 1000000) + \
-            (end.tv_usec - start.tv_usec);
+    diff = (((end).tv_sec - (start).tv_sec) * 1000000) + \
+            ((end).tv_usec - (start).tv_usec);
 
 struct SoftHEVC: public SoftVideoDecoderOMXComponent {
     SoftHEVC(const char *name, const OMX_CALLBACKTYPE *callbacks,
diff --git a/media/libstagefright/codecs/m4v_h263/dec/Android.mk b/media/libstagefright/codecs/m4v_h263/dec/Android.mk
index eb39b44..c20dc4d 100644
--- a/media/libstagefright/codecs/m4v_h263/dec/Android.mk
+++ b/media/libstagefright/codecs/m4v_h263/dec/Android.mk
@@ -47,7 +47,6 @@
 LOCAL_CFLAGS := -DOSCL_EXPORT_REF= -DOSCL_IMPORT_REF=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 include $(BUILD_STATIC_LIBRARY)
@@ -71,13 +70,13 @@
         libstagefright_m4vh263dec
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog
+        libmedia libstagefright_omx libstagefright_foundation libutils liblog
 
 LOCAL_MODULE := libstagefright_soft_mpeg4dec
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/m4v_h263/dec/include/m4vh263_decoder_pv_types.h b/media/libstagefright/codecs/m4v_h263/dec/include/m4vh263_decoder_pv_types.h
index ec6871f..711ec58 100644
--- a/media/libstagefright/codecs/m4v_h263/dec/include/m4vh263_decoder_pv_types.h
+++ b/media/libstagefright/codecs/m4v_h263/dec/include/m4vh263_decoder_pv_types.h
@@ -51,7 +51,7 @@
 {
     public:
         OsclAOStatus();
-        OsclAOStatus(int32 aStatus);
+        explicit OsclAOStatus(int32 aStatus);
         int32 operator=(int32 aStatus);
         int32 operator==(int32 aStatus) const;
         int32 operator!=(int32 aStatus) const;
diff --git a/media/libstagefright/codecs/m4v_h263/dec/src/conceal.cpp b/media/libstagefright/codecs/m4v_h263/dec/src/conceal.cpp
index 03e4119..8393d79 100644
--- a/media/libstagefright/codecs/m4v_h263/dec/src/conceal.cpp
+++ b/media/libstagefright/codecs/m4v_h263/dec/src/conceal.cpp
@@ -15,11 +15,15 @@
  * and limitations under the License.
  * -------------------------------------------------------------------
  */
+
+#define LOG_TAG "conceal"
+
+#include "log/log.h"
+
 #include "mp4dec_lib.h" /* video decoder function prototypes */
 #include "vlc_decode.h"
 #include "bitstream.h"
 #include "scaling.h"
-#include "log/log.h"
 
 /* ====================================================================== /
 Function : ConcealTexture_I()
diff --git a/media/libstagefright/codecs/m4v_h263/dec/src/idct.h b/media/libstagefright/codecs/m4v_h263/dec/src/idct.h
index 8edb654..484631b 100644
--- a/media/libstagefright/codecs/m4v_h263/dec/src/idct.h
+++ b/media/libstagefright/codecs/m4v_h263/dec/src/idct.h
@@ -80,9 +80,9 @@
 #define W7 565                  /* 2048*sqrt(2)*cos(7*pi/16) */
 #define W1mW7 2276
 #define W1pW7 3406
-#define W5mW3 -799
-#define mW3mW5 -4017
-#define mW2mW6 -3784
+#define W5mW3 (-799)
+#define mW3mW5 (-4017)
+#define mW2mW6 (-3784)
 #define W2mW6 1568
 
 /* left shift by 11 is to maintain the accuracy of the decimal point */
diff --git a/media/libstagefright/codecs/m4v_h263/dec/src/motion_comp.h b/media/libstagefright/codecs/m4v_h263/dec/src/motion_comp.h
index 0c12f20..68281ba 100644
--- a/media/libstagefright/codecs/m4v_h263/dec/src/motion_comp.h
+++ b/media/libstagefright/codecs/m4v_h263/dec/src/motion_comp.h
@@ -54,20 +54,20 @@
 {
 #endif
 
-#define CLIP_RESULT(x)      if(x & -256){x = 0xFF & (~(x>>31));}
+#define CLIP_RESULT(x)      if((x) & -256){(x) = 0xFF & (~((x)>>31));}
 #define ADD_AND_CLIP1(x)    x += (pred_word&0xFF); CLIP_RESULT(x);
 #define ADD_AND_CLIP2(x)    x += ((pred_word>>8)&0xFF); CLIP_RESULT(x);
 #define ADD_AND_CLIP3(x)    x += ((pred_word>>16)&0xFF); CLIP_RESULT(x);
 #define ADD_AND_CLIP4(x)    x += ((pred_word>>24)&0xFF); CLIP_RESULT(x);
 
-#define ADD_AND_CLIP(x,y)    {  x9 = ~(x>>8); \
+#define ADD_AND_CLIP(x,y)    {  x9 = ~((x)>>8); \
                             if(x9!=-1){ \
                                 x9 = ((uint32)x9)>>24; \
-                                y = x9|(y<<8); \
+                                (y) = x9|((y)<<8); \
                             } \
                             else \
                             {    \
-                                y =  x|(y<<8); \
+                                (y) =  (x)|((y)<<8); \
                             } \
                             }
 
diff --git a/media/libstagefright/codecs/m4v_h263/dec/src/mp4def.h b/media/libstagefright/codecs/m4v_h263/dec/src/mp4def.h
index 3388d89..20f458d 100644
--- a/media/libstagefright/codecs/m4v_h263/dec/src/mp4def.h
+++ b/media/libstagefright/codecs/m4v_h263/dec/src/mp4def.h
@@ -47,7 +47,7 @@
 /* You don't want to use ((x>UB)?UB:(x<LB)?LB:x) for the clipping */
 /*    because it will use one extra comparison if the compiler is */
 /*    not well-optimized.    04/19/2000.                        */
-#define CLIP_THE_RANGE(x,LB,UB) if (x<LB) x = LB; else if (x>UB) x = UB
+#define CLIP_THE_RANGE(x,LB,UB) if ((x)<(LB)) (x) = (LB); else if ((x)>(UB)) (x) = (UB)
 
 #define MODE_INTRA      0x08 //01000
 #define MODE_INTRA_Q    0x09 //01001
@@ -72,7 +72,7 @@
 #define START_CODE_LENGTH       32
 
 /* 11/30/98 */
-#define NoMarkerFound -1
+#define NoMarkerFound (-1)
 #define FoundRM     1   /* Resync Marker */
 #define FoundVSC    2   /* VOP_START_CODE. */
 #define FoundGSC    3   /* GROUP_START_CODE */
@@ -153,7 +153,7 @@
 
 
 /* macro utility */
-#define  ZERO_OUT_64BYTES(x)    { *((uint32*)x) = *(((uint32*)(x))+1) =  \
+#define  ZERO_OUT_64BYTES(x)    { *((uint32*)(x)) = *(((uint32*)(x))+1) =  \
         *(((uint32*)(x))+2) = *(((uint32*)(x))+3) =  \
         *(((uint32*)(x))+4) = *(((uint32*)(x))+5) =  \
         *(((uint32*)(x))+6) = *(((uint32*)(x))+7) =  \
diff --git a/media/libstagefright/codecs/m4v_h263/dec/src/post_proc.h b/media/libstagefright/codecs/m4v_h263/dec/src/post_proc.h
index 091fdaf..a8ab37f 100644
--- a/media/libstagefright/codecs/m4v_h263/dec/src/post_proc.h
+++ b/media/libstagefright/codecs/m4v_h263/dec/src/post_proc.h
@@ -32,9 +32,9 @@
 ; DEFINES
 ; Include all pre-processor statements here.
 ----------------------------------------------------------------------------*/
-#define UPDATE_PV_MAXPV_MIN(p,max,min) if ((p) > max) max=(p); else if ((p) < min) min = (p);
+#define UPDATE_PV_MAXPV_MIN(p,max,min) if ((p) > (max)) (max)=(p); else if ((p) < (min)) (min) = (p);
 
-#define     INDEX(x,thr)    (((x)>=thr)?1:0)
+#define     INDEX(x,thr)    (((x)>=(thr))?1:0)
 #define     BLKSIZE     8
 #define     MBSIZE      16
 #define     DERING_THR  16
diff --git a/media/libstagefright/codecs/m4v_h263/dec/src/vlc_decode.h b/media/libstagefright/codecs/m4v_h263/dec/src/vlc_decode.h
index a804606..e242820 100644
--- a/media/libstagefright/codecs/m4v_h263/dec/src/vlc_decode.h
+++ b/media/libstagefright/codecs/m4v_h263/dec/src/vlc_decode.h
@@ -79,10 +79,10 @@
 #include "mp4lib_int.h"
 
 #define VLC_ERROR_DETECTED(x) ((x) < 0)
-#define VLC_IO_ERROR    -1
-#define VLC_CODE_ERROR  -2
-#define VLC_MB_STUFFING -4
-#define VLC_NO_LAST_BIT -5
+#define VLC_IO_ERROR    (-1)
+#define VLC_CODE_ERROR  (-2)
+#define VLC_MB_STUFFING (-4)
+#define VLC_NO_LAST_BIT (-5)
 
 #define VLC_ESCAPE_CODE  7167
 
diff --git a/media/libstagefright/codecs/m4v_h263/enc/Android.mk b/media/libstagefright/codecs/m4v_h263/enc/Android.mk
index ab079e8..f950052 100644
--- a/media/libstagefright/codecs/m4v_h263/enc/Android.mk
+++ b/media/libstagefright/codecs/m4v_h263/enc/Android.mk
@@ -34,7 +34,6 @@
     $(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 include $(BUILD_STATIC_LIBRARY)
@@ -64,21 +63,17 @@
         libstagefright_m4vh263enc
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright \
-        libstagefright_enc_common \
-        libstagefright_foundation \
+        libmedia \
         libstagefright_omx \
         libutils \
         liblog \
-        libui
-
 
 LOCAL_MODULE := libstagefright_soft_mpeg4enc
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
 
@@ -93,7 +88,6 @@
         $(LOCAL_PATH)/include
 
 LOCAL_CFLAGS := -DOSCL_EXPORT_REF= -DOSCL_IMPORT_REF= -DBX_RC
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_STATIC_LIBRARIES := \
diff --git a/media/libstagefright/codecs/m4v_h263/enc/SoftMPEG4Encoder.cpp b/media/libstagefright/codecs/m4v_h263/enc/SoftMPEG4Encoder.cpp
index d5a26d3..6d4cb69 100644
--- a/media/libstagefright/codecs/m4v_h263/enc/SoftMPEG4Encoder.cpp
+++ b/media/libstagefright/codecs/m4v_h263/enc/SoftMPEG4Encoder.cpp
@@ -30,8 +30,6 @@
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
-#include <ui/Rect.h>
-#include <ui/GraphicBufferMapper.h>
 
 #include "SoftMPEG4Encoder.h"
 
diff --git a/media/libstagefright/codecs/m4v_h263/enc/src/fastidct.cpp b/media/libstagefright/codecs/m4v_h263/enc/src/fastidct.cpp
index 21d7427..688effc 100644
--- a/media/libstagefright/codecs/m4v_h263/enc/src/fastidct.cpp
+++ b/media/libstagefright/codecs/m4v_h263/enc/src/fastidct.cpp
@@ -55,7 +55,7 @@
         }
 
 
-#define CLIP_RESULT(x)      if((UInt)x > 0xFF){x = 0xFF & (~(x>>31));}
+#define CLIP_RESULT(x)      if((UInt)(x) > 0xFF){(x) = 0xFF & (~((x)>>31));}
 #define ADD_AND_CLIP1(x)    x += (pred_word&0xFF); CLIP_RESULT(x);
 #define ADD_AND_CLIP2(x)    x += ((pred_word>>8)&0xFF); CLIP_RESULT(x);
 #define ADD_AND_CLIP3(x)    x += ((pred_word>>16)&0xFF); CLIP_RESULT(x);
diff --git a/media/libstagefright/codecs/mp3dec/Android.mk b/media/libstagefright/codecs/mp3dec/Android.mk
index 11581c1..5d153d1 100644
--- a/media/libstagefright/codecs/mp3dec/Android.mk
+++ b/media/libstagefright/codecs/mp3dec/Android.mk
@@ -54,7 +54,6 @@
         -D"OSCL_UNUSED_ARG(x)=(void)(x)"
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE := libstagefright_mp3dec
@@ -77,11 +76,11 @@
         $(LOCAL_PATH)/include
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog
+        libmedia libstagefright_omx libstagefright_foundation libutils liblog
 
 LOCAL_STATIC_LIBRARIES := \
         libstagefright_mp3dec
@@ -103,7 +102,6 @@
         $(LOCAL_PATH)/test/include \
         $(call include-path-for, audio-utils)
 
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 LOCAL_STATIC_LIBRARIES := \
         libstagefright_mp3dec libsndfile
diff --git a/media/libstagefright/codecs/mp3dec/src/pv_mp3dec_fxd_op_c_equivalent.h b/media/libstagefright/codecs/mp3dec/src/pv_mp3dec_fxd_op_c_equivalent.h
index 7f480a6..adb0dd4 100644
--- a/media/libstagefright/codecs/mp3dec/src/pv_mp3dec_fxd_op_c_equivalent.h
+++ b/media/libstagefright/codecs/mp3dec/src/pv_mp3dec_fxd_op_c_equivalent.h
@@ -44,9 +44,9 @@
 #endif
 
 #include "pvmp3_audio_type_defs.h"
-#define Qfmt_31(a)   (Int32)((float)a*0x7FFFFFFF)
+#define Qfmt_31(a)   (Int32)((float)(a)*0x7FFFFFFF)
 
-#define Qfmt15(x)   (Int16)(x*((Int32)1<<15) + (x>=0?0.5F:-0.5F))
+#define Qfmt15(x)   (Int16)((x)*((Int32)1<<15) + ((x)>=0?0.5F:-0.5F))
 
 
 
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_alias_reduction.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_alias_reduction.cpp
index 32c76c6..af738ba 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_alias_reduction.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_alias_reduction.cpp
@@ -109,7 +109,7 @@
 ----------------------------------------------------------------------------*/
 #define NUM_BUTTERFLIES 8
 
-#define Q31_fmt(a)    (int32(double(0x7FFFFFFF)*a))
+#define Q31_fmt(a)    (int32(double(0x7FFFFFFF)*(a)))
 
 /*----------------------------------------------------------------------------
 ; LOCAL FUNCTION DEFINITIONS
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_16.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_16.cpp
index 949e7be..cc99d5c 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_16.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_16.cpp
@@ -109,7 +109,7 @@
 ; Include all pre-processor statements here. Include conditional
 ; compile variables also.
 ----------------------------------------------------------------------------*/
-#define Qfmt(a)   (int32)(a*((int32)1<<27))
+#define Qfmt(a)   (int32)((a)*((int32)1<<27))
 
 /*----------------------------------------------------------------------------
 ; LOCAL FUNCTION DEFINITIONS
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_6.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_6.cpp
index 4c5fb03..1f8018a 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_6.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_6.cpp
@@ -79,7 +79,7 @@
 ; Include all pre-processor statements here. Include conditional
 ; compile variables also.
 ----------------------------------------------------------------------------*/
-#define Qfmt30(a)   (Int32)(a*((Int32)1<<30) + (a>=0?0.5F:-0.5F))
+#define Qfmt30(a)   (Int32)((a)*((Int32)1<<30) + ((a)>=0?0.5F:-0.5F))
 
 #define cos_pi_6     Qfmt30(  0.86602540378444f)
 #define cos_2_pi_6   Qfmt30(  0.5f)
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_9.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_9.cpp
index fa581b3..bbb247d 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_9.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_9.cpp
@@ -77,7 +77,7 @@
 ; Include all pre-processor statements here. Include conditional
 ; compile variables also.
 ----------------------------------------------------------------------------*/
-#define Qfmt31(a)   (int32)(a*(0x7FFFFFFF))
+#define Qfmt31(a)   (int32)((a)*(0x7FFFFFFF))
 
 #define cos_pi_9    Qfmt31( 0.93969262078591f)
 #define cos_2pi_9   Qfmt31( 0.76604444311898f)
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_dec_defs.h b/media/libstagefright/codecs/mp3dec/src/pvmp3_dec_defs.h
index 6cf8e3e..2be9ab9 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_dec_defs.h
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_dec_defs.h
@@ -53,7 +53,7 @@
 ; MACROS
 ; Define module specific macros here
 ----------------------------------------------------------------------------*/
-#define module(x, POW2)   ((x)&(POW2-1))
+#define module(x, POW2)   ((x)&((POW2)-1))
 
 /*----------------------------------------------------------------------------
 ; DEFINES
@@ -75,7 +75,7 @@
 #define MPEG_1              0
 #define MPEG_2              1
 #define MPEG_2_5            2
-#define INVALID_VERSION     -1
+#define INVALID_VERSION   (-1)
 
 /* MPEG Header Definitions - Mode Values */
 
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_dequantize_sample.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_dequantize_sample.cpp
index 69e1987..639df81 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_dequantize_sample.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_dequantize_sample.cpp
@@ -108,8 +108,8 @@
 ; Include all pre-processor statements here. Include conditional
 ; compile variables also.
 ----------------------------------------------------------------------------*/
-#define Q30_fmt(a)(int32(double(0x40000000)*a))
-#define Q29_fmt(a)(int32(double(0x20000000)*a))
+#define Q30_fmt(a)(int32(double(0x40000000)*(a)))
+#define Q29_fmt(a)(int32(double(0x20000000)*(a)))
 
 /*----------------------------------------------------------------------------
 ; LOCAL FUNCTION DEFINITIONS
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_equalizer.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_equalizer.cpp
index f4a4efb..61aef30 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_equalizer.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_equalizer.cpp
@@ -98,7 +98,7 @@
 #define LEVEL_45__dB  0.005524271f
 #define LEVEL_60__dB  0.000976562f
 
-#define Qmf31( x)    (int32)(x*(float)0x7FFFFFFF)
+#define Qmf31( x)    (int32)((x)*(float)0x7FFFFFFF)
 
 
 /*----------------------------------------------------------------------------
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_get_scale_factors.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_get_scale_factors.cpp
index f1a3ff8..d4a2060 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_get_scale_factors.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_get_scale_factors.cpp
@@ -86,7 +86,7 @@
 ; Include all pre-processor statements here. Include conditional
 ; compile variables also.
 ----------------------------------------------------------------------------*/
-#define Qfmt_28(a)(int32(double(0x10000000)*a))
+#define Qfmt_28(a)(int32(double(0x10000000)*(a)))
 
 /*----------------------------------------------------------------------------
 ; LOCAL FUNCTION DEFINITIONS
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_18.h b/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_18.h
index e497aee..2f2f65c 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_18.h
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_18.h
@@ -59,9 +59,9 @@
 ; DEFINES
 ; Include all pre-processor statements here.
 ----------------------------------------------------------------------------*/
-#define Qfmt(a)    (Int32)(a*((Int32)1<<28) )
-#define Qfmt1(a)   (Int32)(a*((Int32)0x7FFFFFFF))
-#define Qfmt2(a)   (Int32)(a*((Int32)1<<27))
+#define Qfmt(a)    (Int32)((a)*((Int32)1<<28) )
+#define Qfmt1(a)   (Int32)((a)*((Int32)0x7FFFFFFF))
+#define Qfmt2(a)   (Int32)((a)*((Int32)1<<27))
 
 /*----------------------------------------------------------------------------
 ; EXTERNAL VARIABLES REFERENCES
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_6.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_6.cpp
index 6a72aad..8d80e8f 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_6.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_6.cpp
@@ -81,7 +81,7 @@
 ; compile variables also.
 ----------------------------------------------------------------------------*/
 #define QFORMAT    29
-#define Qfmt29(a)   (int32)(a*((int32)1<<QFORMAT) + (a>=0?0.5F:-0.5F))
+#define Qfmt29(a)   (int32)((a)*((int32)1<<QFORMAT) + ((a)>=0?0.5F:-0.5F))
 
 /*----------------------------------------------------------------------------
 ; LOCAL FUNCTION DEFINITIONS
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_6.h b/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_6.h
index 6ba53d7..af4f286 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_6.h
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_6.h
@@ -59,9 +59,9 @@
 ; DEFINES
 ; Include all pre-processor statements here.
 ----------------------------------------------------------------------------*/
-#define Qfmt(a)    (Int32)(a*((Int32)1<<28) )
-#define Qfmt1(a)   (Int32)(a*((Int32)0x7FFFFFFF))
-#define Qfmt2(a)   (Int32)(a*((Int32)1<<27))
+#define Qfmt(a)    (Int32)((a)*((Int32)1<<28) )
+#define Qfmt1(a)   (Int32)((a)*((Int32)0x7FFFFFFF))
+#define Qfmt2(a)   (Int32)((a)*((Int32)1<<27))
 
 /*----------------------------------------------------------------------------
 ; EXTERNAL VARIABLES REFERENCES
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_mpeg2_stereo_proc.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_mpeg2_stereo_proc.cpp
index c79062c..a70e716 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_mpeg2_stereo_proc.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_mpeg2_stereo_proc.cpp
@@ -123,7 +123,7 @@
 ; compile variables also.
 ----------------------------------------------------------------------------*/
 
-#define Q31_fmt(a)    (int32(double(0x7FFFFFFF)*a))
+#define Q31_fmt(a)    (int32(double(0x7FFFFFFF)*(a)))
 
 /*----------------------------------------------------------------------------
 ; LOCAL FUNCTION DEFINITIONS
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_stereo_proc.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_stereo_proc.cpp
index d69a46d..10edfc3 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_stereo_proc.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_stereo_proc.cpp
@@ -140,7 +140,7 @@
 ----------------------------------------------------------------------------*/
 #define N31 31
 
-#define Q31_fmt(a)    (int32(double(0x7FFFFFFF)*a))
+#define Q31_fmt(a)    (int32(double(0x7FFFFFFF)*(a)))
 
 /*----------------------------------------------------------------------------
 ; LOCAL FUNCTION DEFINITIONS
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_tables.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_tables.cpp
index 90e524a..91113e3 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_tables.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_tables.cpp
@@ -136,7 +136,7 @@
 
 };
 
-#define INV_Q31( x)   (int32)(0x7FFFFFFF/(float)x - 1.0f)
+#define INV_Q31( x)   (int32)(0x7FFFFFFF/(float)(x) - 1.0f)
 
 const int32 mp3_shortwindBandWidths[9][13] =
 {
@@ -161,7 +161,7 @@
 };
 
 
-#define Q30_fmt(a)    (int32((0x40000000)*a))
+#define Q30_fmt(a)    (int32((0x40000000)*(a)))
 
 const int32 pqmfSynthWin[(HAN_SIZE/2) + 8] =
 {
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_tables.h b/media/libstagefright/codecs/mp3dec/src/pvmp3_tables.h
index b54c5bf..8f8509c 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_tables.h
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_tables.h
@@ -52,7 +52,7 @@
 /*----------------------------------------------------------------------------
 ; DEFINES AND SIMPLE TYPEDEF'S
 ----------------------------------------------------------------------------*/
-#define Qfmt_28(a) (int32(double(0x10000000)*a))
+#define Qfmt_28(a) (int32(double(0x10000000)*(a)))
 
 /*----------------------------------------------------------------------------
 ; SIMPLE TYPEDEF'S
diff --git a/media/libstagefright/codecs/mpeg2dec/Android.mk b/media/libstagefright/codecs/mpeg2dec/Android.mk
index f1c1719..0afc180 100644
--- a/media/libstagefright/codecs/mpeg2dec/Android.mk
+++ b/media/libstagefright/codecs/mpeg2dec/Android.mk
@@ -14,15 +14,15 @@
 LOCAL_C_INCLUDES += $(TOP)/frameworks/av/media/libstagefright/include
 LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/openmax
 
-LOCAL_SHARED_LIBRARIES  := libstagefright
+LOCAL_SHARED_LIBRARIES  := libmedia
 LOCAL_SHARED_LIBRARIES  += libstagefright_omx
 LOCAL_SHARED_LIBRARIES  += libstagefright_foundation
 LOCAL_SHARED_LIBRARIES  += libutils
 LOCAL_SHARED_LIBRARIES  += liblog
 
 LOCAL_LDFLAGS := -Wl,-Bsymbolic
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp b/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp
index 7297f40..9a69226 100644
--- a/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp
+++ b/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp
@@ -47,14 +47,8 @@
         (IVD_CONTROL_API_COMMAND_TYPE_T)IMPEG2D_CMD_CTL_SET_NUM_CORES
 
 static const CodecProfileLevel kProfileLevels[] = {
-    { OMX_VIDEO_MPEG2ProfileSimple, OMX_VIDEO_MPEG2LevelLL  },
-    { OMX_VIDEO_MPEG2ProfileSimple, OMX_VIDEO_MPEG2LevelML  },
-    { OMX_VIDEO_MPEG2ProfileSimple, OMX_VIDEO_MPEG2LevelH14 },
     { OMX_VIDEO_MPEG2ProfileSimple, OMX_VIDEO_MPEG2LevelHL  },
 
-    { OMX_VIDEO_MPEG2ProfileMain  , OMX_VIDEO_MPEG2LevelLL  },
-    { OMX_VIDEO_MPEG2ProfileMain  , OMX_VIDEO_MPEG2LevelML  },
-    { OMX_VIDEO_MPEG2ProfileMain  , OMX_VIDEO_MPEG2LevelH14 },
     { OMX_VIDEO_MPEG2ProfileMain  , OMX_VIDEO_MPEG2LevelHL  },
 };
 
@@ -783,6 +777,7 @@
 
                 if (portWillReset) {
                     resetDecoder();
+                    resetPlugin();
                     return;
                 }
             } else if (mUpdateColorAspects) {
diff --git a/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.h b/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.h
index 1285c5b..6729a54 100644
--- a/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.h
+++ b/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.h
@@ -49,8 +49,8 @@
 
 /** Compute difference between start and end */
 #define TIME_DIFF(start, end, diff) \
-    diff = ((end.tv_sec - start.tv_sec) * 1000000) + \
-            (end.tv_usec - start.tv_usec);
+    diff = (((end).tv_sec - (start).tv_sec) * 1000000) + \
+            ((end).tv_usec - (start).tv_usec);
 
 struct SoftMPEG2 : public SoftVideoDecoderOMXComponent {
     SoftMPEG2(
diff --git a/media/libstagefright/codecs/on2/dec/Android.mk b/media/libstagefright/codecs/on2/dec/Android.mk
index 76f7600..8bc7dbc 100644
--- a/media/libstagefright/codecs/on2/dec/Android.mk
+++ b/media/libstagefright/codecs/on2/dec/Android.mk
@@ -15,13 +15,13 @@
         libvpx
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog
+        libmedia libstagefright_omx libstagefright_foundation libutils liblog
 
 LOCAL_MODULE := libstagefright_soft_vpxdec
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/on2/enc/Android.mk b/media/libstagefright/codecs/on2/enc/Android.mk
index 1de318a..747aae0 100644
--- a/media/libstagefright/codecs/on2/enc/Android.mk
+++ b/media/libstagefright/codecs/on2/enc/Android.mk
@@ -2,7 +2,9 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES := \
-        SoftVPXEncoder.cpp
+        SoftVPXEncoder.cpp \
+        SoftVP8Encoder.cpp \
+        SoftVP9Encoder.cpp
 
 LOCAL_C_INCLUDES := \
         $(TOP)/external/libvpx/libvpx \
@@ -11,15 +13,15 @@
         frameworks/av/media/libstagefright/include \
         frameworks/native/include/media/openmax \
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_STATIC_LIBRARIES := \
         libvpx
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog \
-        libhardware \
+        libmedia libstagefright_omx libstagefright_foundation libutils liblog \
 
 LOCAL_MODULE := libstagefright_soft_vpxenc
 LOCAL_MODULE_TAGS := optional
diff --git a/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.cpp b/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.cpp
new file mode 100644
index 0000000..04737a9
--- /dev/null
+++ b/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.cpp
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// #define LOG_NDEBUG 0
+#define LOG_TAG "SoftVP8Encoder"
+#include "SoftVP8Encoder.h"
+
+#include <utils/Log.h>
+#include <utils/misc.h>
+
+#include <media/hardware/HardwareAPI.h>
+#include <media/hardware/MetadataBufferType.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/MediaDefs.h>
+
+#ifndef INT32_MAX
+#define INT32_MAX   2147483647
+#endif
+
+namespace android {
+
+static const CodecProfileLevel kVp8ProfileLevels[] = {
+    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version0 },
+    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version1 },
+    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version2 },
+    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version3 },
+};
+
+SoftVP8Encoder::SoftVP8Encoder(const char *name,
+                               const OMX_CALLBACKTYPE *callbacks,
+                               OMX_PTR appData,
+                               OMX_COMPONENTTYPE **component)
+    : SoftVPXEncoder(
+            name, callbacks, appData, component, "video_encoder.vp8",
+            OMX_VIDEO_CodingVP8, MEDIA_MIMETYPE_VIDEO_VP8, 2,
+            kVp8ProfileLevels, NELEM(kVp8ProfileLevels)),
+      mDCTPartitions(0),
+      mLevel(OMX_VIDEO_VP8Level_Version0) {
+}
+
+void SoftVP8Encoder::setCodecSpecificInterface() {
+    mCodecInterface = vpx_codec_vp8_cx();
+}
+
+void SoftVP8Encoder::setCodecSpecificConfiguration() {
+    switch (mLevel) {
+        case OMX_VIDEO_VP8Level_Version0:
+            mCodecConfiguration->g_profile = 0;
+            break;
+
+        case OMX_VIDEO_VP8Level_Version1:
+            mCodecConfiguration->g_profile = 1;
+            break;
+
+        case OMX_VIDEO_VP8Level_Version2:
+            mCodecConfiguration->g_profile = 2;
+            break;
+
+        case OMX_VIDEO_VP8Level_Version3:
+            mCodecConfiguration->g_profile = 3;
+            break;
+
+        default:
+            mCodecConfiguration->g_profile = 0;
+    }
+}
+
+vpx_codec_err_t SoftVP8Encoder::setCodecSpecificControls() {
+    vpx_codec_err_t codec_return = vpx_codec_control(mCodecContext,
+                                                     VP8E_SET_TOKEN_PARTITIONS,
+                                                     mDCTPartitions);
+    if (codec_return != VPX_CODEC_OK) {
+        ALOGE("Error setting dct partitions for vpx encoder.");
+    }
+    return codec_return;
+}
+
+OMX_ERRORTYPE SoftVP8Encoder::internalGetParameter(OMX_INDEXTYPE index,
+                                                   OMX_PTR param) {
+    // can include extension index OMX_INDEXEXTTYPE
+    const int32_t indexFull = index;
+
+    switch (indexFull) {
+        case OMX_IndexParamVideoVp8:
+            return internalGetVp8Params(
+                (OMX_VIDEO_PARAM_VP8TYPE *)param);
+
+        default:
+            return SoftVPXEncoder::internalGetParameter(index, param);
+    }
+}
+
+OMX_ERRORTYPE SoftVP8Encoder::internalSetParameter(OMX_INDEXTYPE index,
+                                                   const OMX_PTR param) {
+    // can include extension index OMX_INDEXEXTTYPE
+    const int32_t indexFull = index;
+
+    switch (indexFull) {
+        case OMX_IndexParamVideoVp8:
+            return internalSetVp8Params(
+                (const OMX_VIDEO_PARAM_VP8TYPE *)param);
+
+        default:
+            return SoftVPXEncoder::internalSetParameter(index, param);
+    }
+}
+
+OMX_ERRORTYPE SoftVP8Encoder::internalGetVp8Params(
+        OMX_VIDEO_PARAM_VP8TYPE* vp8Params) {
+    if (vp8Params->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+
+    vp8Params->eProfile = OMX_VIDEO_VP8ProfileMain;
+    vp8Params->eLevel = mLevel;
+    vp8Params->bErrorResilientMode = mErrorResilience;
+    vp8Params->nDCTPartitions = mDCTPartitions;
+    return OMX_ErrorNone;
+}
+
+OMX_ERRORTYPE SoftVP8Encoder::internalSetVp8Params(
+        const OMX_VIDEO_PARAM_VP8TYPE* vp8Params) {
+    if (vp8Params->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+
+    if (vp8Params->eProfile != OMX_VIDEO_VP8ProfileMain) {
+        return OMX_ErrorBadParameter;
+    }
+
+    if (vp8Params->eLevel == OMX_VIDEO_VP8Level_Version0 ||
+        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version1 ||
+        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version2 ||
+        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version3) {
+        mLevel = vp8Params->eLevel;
+    } else {
+        return OMX_ErrorBadParameter;
+    }
+
+    mErrorResilience = vp8Params->bErrorResilientMode;
+    if (vp8Params->nDCTPartitions <= kMaxDCTPartitions) {
+        mDCTPartitions = vp8Params->nDCTPartitions;
+    } else {
+        return OMX_ErrorBadParameter;
+    }
+    return OMX_ErrorNone;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.h b/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.h
new file mode 100644
index 0000000..b4904bf
--- /dev/null
+++ b/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SOFT_VP8_ENCODER_H_
+
+#define SOFT_VP8_ENCODER_H_
+
+#include "SoftVPXEncoder.h"
+
+#include <OMX_VideoExt.h>
+#include <OMX_IndexExt.h>
+
+#include <hardware/gralloc.h>
+
+#include "vpx/vpx_encoder.h"
+#include "vpx/vpx_codec.h"
+#include "vpx/vp8cx.h"
+
+namespace android {
+
+// Exposes a vp8 encoder as an OMX Component
+//
+// In addition to the base class settings, Only following encoder settings are
+// available:
+//    - token partitioning
+struct SoftVP8Encoder : public SoftVPXEncoder {
+    SoftVP8Encoder(const char *name,
+                   const OMX_CALLBACKTYPE *callbacks,
+                   OMX_PTR appData,
+                   OMX_COMPONENTTYPE **component);
+
+protected:
+    // Returns current values for requested OMX
+    // parameters
+    virtual OMX_ERRORTYPE internalGetParameter(
+            OMX_INDEXTYPE index, OMX_PTR param);
+
+    // Validates, extracts and stores relevant OMX
+    // parameters
+    virtual OMX_ERRORTYPE internalSetParameter(
+            OMX_INDEXTYPE index, const OMX_PTR param);
+
+    // Populates |mCodecInterface| with codec specific settings.
+    virtual void setCodecSpecificInterface();
+
+    // Sets codec specific configuration.
+    virtual void setCodecSpecificConfiguration();
+
+    // Initializes codec specific encoder settings.
+    virtual vpx_codec_err_t setCodecSpecificControls();
+
+    // Gets vp8 specific parameters.
+    OMX_ERRORTYPE internalGetVp8Params(
+        OMX_VIDEO_PARAM_VP8TYPE* vp8Params);
+
+    // Handles vp8 specific parameters.
+    OMX_ERRORTYPE internalSetVp8Params(
+        const OMX_VIDEO_PARAM_VP8TYPE* vp8Params);
+
+private:
+    // Max value supported for DCT partitions
+    static const uint32_t kMaxDCTPartitions = 3;
+
+    // vp8 specific configuration parameter
+    // that enables token partitioning of
+    // the stream into substreams
+    int32_t mDCTPartitions;
+
+    // Encoder profile corresponding to OMX level parameter
+    //
+    // The inconsistency in the naming is caused by
+    // OMX spec referring vpx profiles (g_profile)
+    // as "levels" whereas using the name "profile" for
+    // something else.
+    OMX_VIDEO_VP8LEVELTYPE mLevel;
+
+    DISALLOW_EVIL_CONSTRUCTORS(SoftVP8Encoder);
+};
+
+}  // namespace android
+
+#endif  // SOFT_VP8_ENCODER_H_
diff --git a/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.cpp b/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.cpp
new file mode 100644
index 0000000..4c7290d
--- /dev/null
+++ b/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.cpp
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// #define LOG_NDEBUG 0
+#define LOG_TAG "SoftVP9Encoder"
+#include "SoftVP9Encoder.h"
+
+#include <utils/Log.h>
+#include <utils/misc.h>
+
+#include <media/hardware/HardwareAPI.h>
+#include <media/hardware/MetadataBufferType.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/MediaDefs.h>
+
+namespace android {
+
+static const CodecProfileLevel kVp9ProfileLevels[] = {
+    { OMX_VIDEO_VP9Profile0, OMX_VIDEO_VP9Level41 },
+};
+
+SoftVP9Encoder::SoftVP9Encoder(
+        const char *name, const OMX_CALLBACKTYPE *callbacks, OMX_PTR appData,
+        OMX_COMPONENTTYPE **component)
+    : SoftVPXEncoder(
+            name, callbacks, appData, component, "video_encoder.vp9",
+            OMX_VIDEO_CodingVP9, MEDIA_MIMETYPE_VIDEO_VP9, 4,
+            kVp9ProfileLevels, NELEM(kVp9ProfileLevels)),
+      mLevel(OMX_VIDEO_VP9Level1),
+      mTileColumns(0),
+      mFrameParallelDecoding(OMX_FALSE) {
+}
+
+void SoftVP9Encoder::setCodecSpecificInterface() {
+    mCodecInterface = vpx_codec_vp9_cx();
+}
+
+void SoftVP9Encoder::setCodecSpecificConfiguration() {
+    mCodecConfiguration->g_profile = 0;
+}
+
+vpx_codec_err_t SoftVP9Encoder::setCodecSpecificControls() {
+    vpx_codec_err_t codecReturn = vpx_codec_control(
+            mCodecContext, VP9E_SET_TILE_COLUMNS, mTileColumns);
+    if (codecReturn != VPX_CODEC_OK) {
+        ALOGE("Error setting VP9E_SET_TILE_COLUMNS to %d. vpx_codec_control() "
+              "returned %d", mTileColumns, codecReturn);
+        return codecReturn;
+    }
+    codecReturn = vpx_codec_control(
+            mCodecContext, VP9E_SET_FRAME_PARALLEL_DECODING,
+            mFrameParallelDecoding);
+    if (codecReturn != VPX_CODEC_OK) {
+        ALOGE("Error setting VP9E_SET_FRAME_PARALLEL_DECODING to %d."
+              "vpx_codec_control() returned %d", mFrameParallelDecoding,
+              codecReturn);
+        return codecReturn;
+    }
+    // For VP9, we always set CPU_USED to 8 (because the realtime default is 0
+    // which is too slow).
+    codecReturn = vpx_codec_control(mCodecContext, VP8E_SET_CPUUSED, 8);
+    if (codecReturn != VPX_CODEC_OK) {
+        ALOGE("Error setting VP8E_SET_CPUUSED to 8. vpx_codec_control() "
+              "returned %d", codecReturn);
+        return codecReturn;
+    }
+    return codecReturn;
+}
+
+OMX_ERRORTYPE SoftVP9Encoder::internalGetParameter(
+        OMX_INDEXTYPE index, OMX_PTR param) {
+    // can include extension index OMX_INDEXEXTTYPE
+    const int32_t indexFull = index;
+
+    switch (indexFull) {
+        case OMX_IndexParamVideoVp9:
+            return internalGetVp9Params(
+                    (OMX_VIDEO_PARAM_VP9TYPE *)param);
+
+        default:
+            return SoftVPXEncoder::internalGetParameter(index, param);
+    }
+}
+
+OMX_ERRORTYPE SoftVP9Encoder::internalSetParameter(
+        OMX_INDEXTYPE index, const OMX_PTR param) {
+    // can include extension index OMX_INDEXEXTTYPE
+    const int32_t indexFull = index;
+
+    switch (indexFull) {
+        case OMX_IndexParamVideoVp9:
+            return internalSetVp9Params(
+                    (const OMX_VIDEO_PARAM_VP9TYPE *)param);
+
+        default:
+            return SoftVPXEncoder::internalSetParameter(index, param);
+    }
+}
+
+OMX_ERRORTYPE SoftVP9Encoder::internalGetVp9Params(
+        OMX_VIDEO_PARAM_VP9TYPE *vp9Params) {
+    if (vp9Params->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+
+    vp9Params->eProfile = OMX_VIDEO_VP9Profile0;
+    vp9Params->eLevel = mLevel;
+    vp9Params->bErrorResilientMode = mErrorResilience;
+    vp9Params->nTileColumns = mTileColumns;
+    vp9Params->bEnableFrameParallelDecoding = mFrameParallelDecoding;
+    return OMX_ErrorNone;
+}
+
+OMX_ERRORTYPE SoftVP9Encoder::internalSetVp9Params(
+        const OMX_VIDEO_PARAM_VP9TYPE *vp9Params) {
+    if (vp9Params->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+
+    if (vp9Params->eProfile != OMX_VIDEO_VP9Profile0) {
+        return OMX_ErrorBadParameter;
+    }
+
+    if (vp9Params->eLevel == OMX_VIDEO_VP9Level1 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level11 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level2 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level21 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level3 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level31 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level4 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level41 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level5 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level51 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level52 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level6 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level61 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level62) {
+        mLevel = vp9Params->eLevel;
+    } else {
+        return OMX_ErrorBadParameter;
+    }
+
+    mErrorResilience = vp9Params->bErrorResilientMode;
+    mTileColumns = vp9Params->nTileColumns;
+    mFrameParallelDecoding = vp9Params->bEnableFrameParallelDecoding;
+    return OMX_ErrorNone;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.h b/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.h
new file mode 100644
index 0000000..85df69a
--- /dev/null
+++ b/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SOFT_VP9_ENCODER_H_
+
+#define SOFT_VP9_ENCODER_H_
+
+#include "SoftVPXEncoder.h"
+
+#include <OMX_VideoExt.h>
+#include <OMX_IndexExt.h>
+
+#include <hardware/gralloc.h>
+
+#include "vpx/vpx_encoder.h"
+#include "vpx/vpx_codec.h"
+#include "vpx/vp8cx.h"
+
+namespace android {
+
+// Exposes a VP9 encoder as an OMX Component
+//
+// In addition to the base class settings, Only following encoder settings are
+// available:
+//    - tile rows
+//    - tile columns
+//    - frame parallel mode
+struct SoftVP9Encoder : public SoftVPXEncoder {
+    SoftVP9Encoder(const char *name,
+                   const OMX_CALLBACKTYPE *callbacks,
+                   OMX_PTR appData,
+                   OMX_COMPONENTTYPE **component);
+
+protected:
+    // Returns current values for requested OMX
+    // parameters
+    virtual OMX_ERRORTYPE internalGetParameter(
+            OMX_INDEXTYPE index, OMX_PTR param);
+
+    // Validates, extracts and stores relevant OMX
+    // parameters
+    virtual OMX_ERRORTYPE internalSetParameter(
+            OMX_INDEXTYPE index, const OMX_PTR param);
+
+    // Populates |mCodecInterface| with codec specific settings.
+    virtual void setCodecSpecificInterface();
+
+    // Sets codec specific configuration.
+    virtual void setCodecSpecificConfiguration();
+
+    // Initializes codec specific encoder settings.
+    virtual vpx_codec_err_t setCodecSpecificControls();
+
+    // Gets vp9 specific parameters.
+    OMX_ERRORTYPE internalGetVp9Params(
+        OMX_VIDEO_PARAM_VP9TYPE* vp9Params);
+
+    // Handles vp9 specific parameters.
+    OMX_ERRORTYPE internalSetVp9Params(
+        const OMX_VIDEO_PARAM_VP9TYPE* vp9Params);
+
+private:
+    // Encoder profile corresponding to OMX level parameter
+    //
+    // The inconsistency in the naming is caused by
+    // OMX spec referring vpx profiles (g_profile)
+    // as "levels" whereas using the name "profile" for
+    // something else.
+    OMX_VIDEO_VP9LEVELTYPE mLevel;
+
+    int32_t mTileColumns;
+
+    OMX_BOOL mFrameParallelDecoding;
+
+    DISALLOW_EVIL_CONSTRUCTORS(SoftVP9Encoder);
+};
+
+}  // namespace android
+
+#endif  // SOFT_VP9_ENCODER_H_
diff --git a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp
index 56e1f77..a5666da 100644
--- a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp
+++ b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp
@@ -18,6 +18,9 @@
 #define LOG_TAG "SoftVPXEncoder"
 #include "SoftVPXEncoder.h"
 
+#include "SoftVP8Encoder.h"
+#include "SoftVP9Encoder.h"
+
 #include <utils/Log.h>
 #include <utils/misc.h>
 
@@ -42,7 +45,6 @@
     params->nVersion.s.nStep = 0;
 }
 
-
 static int GetCPUCoreCount() {
     int cpuCoreCount = 1;
 #if defined(_SC_NPROCESSORS_ONLN)
@@ -55,30 +57,26 @@
     return cpuCoreCount;
 }
 
-static const CodecProfileLevel kProfileLevels[] = {
-    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version0 },
-    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version1 },
-    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version2 },
-    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version3 },
-};
-
 SoftVPXEncoder::SoftVPXEncoder(const char *name,
                                const OMX_CALLBACKTYPE *callbacks,
                                OMX_PTR appData,
-                               OMX_COMPONENTTYPE **component)
+                               OMX_COMPONENTTYPE **component,
+                               const char* role,
+                               OMX_VIDEO_CODINGTYPE codingType,
+                               const char* mimeType,
+                               int32_t minCompressionRatio,
+                               const CodecProfileLevel *profileLevels,
+                               size_t numProfileLevels)
     : SoftVideoEncoderOMXComponent(
-            name, "video_encoder.vp8", OMX_VIDEO_CodingVP8,
-            kProfileLevels, NELEM(kProfileLevels),
+            name, role, codingType, profileLevels, numProfileLevels,
             176 /* width */, 144 /* height */,
             callbacks, appData, component),
       mCodecContext(NULL),
       mCodecConfiguration(NULL),
       mCodecInterface(NULL),
       mBitrateUpdated(false),
-      mBitrateControlMode(VPX_VBR),  // variable bitrate
-      mDCTPartitions(0),
+      mBitrateControlMode(VPX_VBR),
       mErrorResilience(OMX_FALSE),
-      mLevel(OMX_VIDEO_VP8Level_Version0),
       mKeyFrameInterval(0),
       mMinQuantizer(0),
       mMaxQuantizer(0),
@@ -96,10 +94,9 @@
 
     initPorts(
             kNumBuffers, kNumBuffers, kMinOutputBufferSize,
-            MEDIA_MIMETYPE_VIDEO_VP8, 2 /* minCompressionRatio */);
+            mimeType, minCompressionRatio);
 }
 
-
 SoftVPXEncoder::~SoftVPXEncoder() {
     releaseEncoder();
 }
@@ -108,18 +105,18 @@
     vpx_codec_err_t codec_return;
     status_t result = UNKNOWN_ERROR;
 
-    mCodecInterface = vpx_codec_vp8_cx();
+    setCodecSpecificInterface();
     if (mCodecInterface == NULL) {
         goto CLEAN_UP;
     }
-    ALOGD("VP8: initEncoder. BRMode: %u. TSLayers: %zu. KF: %u. QP: %u - %u",
+    ALOGD("VPx: initEncoder. BRMode: %u. TSLayers: %zu. KF: %u. QP: %u - %u",
           (uint32_t)mBitrateControlMode, mTemporalLayers, mKeyFrameInterval,
           mMinQuantizer, mMaxQuantizer);
 
     mCodecConfiguration = new vpx_codec_enc_cfg_t;
     codec_return = vpx_codec_enc_config_default(mCodecInterface,
                                                 mCodecConfiguration,
-                                                0);  // Codec specific flags
+                                                0);
 
     if (codec_return != VPX_CODEC_OK) {
         ALOGE("Error populating default configuration for vpx encoder.");
@@ -131,27 +128,6 @@
     mCodecConfiguration->g_threads = GetCPUCoreCount();
     mCodecConfiguration->g_error_resilient = mErrorResilience;
 
-    switch (mLevel) {
-        case OMX_VIDEO_VP8Level_Version0:
-            mCodecConfiguration->g_profile = 0;
-            break;
-
-        case OMX_VIDEO_VP8Level_Version1:
-            mCodecConfiguration->g_profile = 1;
-            break;
-
-        case OMX_VIDEO_VP8Level_Version2:
-            mCodecConfiguration->g_profile = 2;
-            break;
-
-        case OMX_VIDEO_VP8Level_Version3:
-            mCodecConfiguration->g_profile = 3;
-            break;
-
-        default:
-            mCodecConfiguration->g_profile = 0;
-    }
-
     // OMX timebase unit is microsecond
     // g_timebase is in seconds (i.e. 1/1000000 seconds)
     mCodecConfiguration->g_timebase.num = 1;
@@ -161,6 +137,8 @@
     mCodecConfiguration->rc_end_usage = mBitrateControlMode;
     // Disable frame drop - not allowed in MediaCodec now.
     mCodecConfiguration->rc_dropframe_thresh = 0;
+    // Disable lagged encoding.
+    mCodecConfiguration->g_lag_in_frames = 0;
     if (mBitrateControlMode == VPX_CBR) {
         // Disable spatial resizing.
         mCodecConfiguration->rc_resize_allowed = 0;
@@ -181,8 +159,6 @@
         mCodecConfiguration->rc_buf_sz = 1000;
         // Enable error resilience - needed for packet loss.
         mCodecConfiguration->g_error_resilient = 1;
-        // Disable lagged encoding.
-        mCodecConfiguration->g_lag_in_frames = 0;
         // Maximum key frame interval - for CBR boost to 3000
         mCodecConfiguration->kf_max_dist = 3000;
         // Encoder determines optimal key frame placement automatically.
@@ -253,7 +229,6 @@
             goto CLEAN_UP;
         }
     }
-
     // Set bitrate values for each layer
     for (size_t i = 0; i < mCodecConfiguration->ts_number_layers; i++) {
         mCodecConfiguration->ts_target_bitrate[i] =
@@ -271,7 +246,7 @@
     if (mMaxQuantizer > 0) {
         mCodecConfiguration->rc_max_quantizer = mMaxQuantizer;
     }
-
+    setCodecSpecificConfiguration();
     mCodecContext = new vpx_codec_ctx_t;
     codec_return = vpx_codec_enc_init(mCodecContext,
                                       mCodecInterface,
@@ -283,14 +258,6 @@
         goto CLEAN_UP;
     }
 
-    codec_return = vpx_codec_control(mCodecContext,
-                                     VP8E_SET_TOKEN_PARTITIONS,
-                                     mDCTPartitions);
-    if (codec_return != VPX_CODEC_OK) {
-        ALOGE("Error setting dct partitions for vpx encoder.");
-        goto CLEAN_UP;
-    }
-
     // Extra CBR settings
     if (mBitrateControlMode == VPX_CBR) {
         codec_return = vpx_codec_control(mCodecContext,
@@ -318,6 +285,13 @@
         }
     }
 
+    codec_return = setCodecSpecificControls();
+
+    if (codec_return != VPX_CODEC_OK) {
+        // The codec specific method would have logged the error.
+        goto CLEAN_UP;
+    }
+
     if (mColorFormat != OMX_COLOR_FormatYUV420Planar || mInputDataIsMeta) {
         free(mConversionBuffer);
         mConversionBuffer = NULL;
@@ -338,7 +312,6 @@
     return result;
 }
 
-
 status_t SoftVPXEncoder::releaseEncoder() {
     if (mCodecContext != NULL) {
         vpx_codec_destroy(mCodecContext);
@@ -362,7 +335,6 @@
     return OK;
 }
 
-
 OMX_ERRORTYPE SoftVPXEncoder::internalGetParameter(OMX_INDEXTYPE index,
                                                    OMX_PTR param) {
     // can include extension index OMX_INDEXEXTTYPE
@@ -393,54 +365,15 @@
             return OMX_ErrorNone;
         }
 
-        // VP8 specific parameters that use extension headers
-        case OMX_IndexParamVideoVp8: {
-            OMX_VIDEO_PARAM_VP8TYPE *vp8Params =
-                (OMX_VIDEO_PARAM_VP8TYPE *)param;
-
-            if (!isValidOMXParam(vp8Params)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            if (vp8Params->nPortIndex != kOutputPortIndex) {
-                return OMX_ErrorUnsupportedIndex;
-            }
-
-            vp8Params->eProfile = OMX_VIDEO_VP8ProfileMain;
-            vp8Params->eLevel = mLevel;
-            vp8Params->nDCTPartitions = mDCTPartitions;
-            vp8Params->bErrorResilientMode = mErrorResilience;
-            return OMX_ErrorNone;
-        }
-
-        case OMX_IndexParamVideoAndroidVp8Encoder: {
-            OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vp8AndroidParams =
-                (OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *)param;
-
-            if (!isValidOMXParam(vp8AndroidParams)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            if (vp8AndroidParams->nPortIndex != kOutputPortIndex) {
-                return OMX_ErrorUnsupportedIndex;
-            }
-
-            vp8AndroidParams->nKeyFrameInterval = mKeyFrameInterval;
-            vp8AndroidParams->eTemporalPattern = mTemporalPatternType;
-            vp8AndroidParams->nTemporalLayerCount = mTemporalLayers;
-            vp8AndroidParams->nMinQuantizer = mMinQuantizer;
-            vp8AndroidParams->nMaxQuantizer = mMaxQuantizer;
-            memcpy(vp8AndroidParams->nTemporalLayerBitrateRatio,
-                   mTemporalLayerBitrateRatio, sizeof(mTemporalLayerBitrateRatio));
-            return OMX_ErrorNone;
-        }
+        case OMX_IndexParamVideoAndroidVp8Encoder:
+            return internalGetAndroidVpxParams(
+                (OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *)param);
 
         default:
             return SoftVideoEncoderOMXComponent::internalGetParameter(index, param);
     }
 }
 
-
 OMX_ERRORTYPE SoftVPXEncoder::internalSetParameter(OMX_INDEXTYPE index,
                                                    const OMX_PTR param) {
     // can include extension index OMX_INDEXEXTTYPE
@@ -458,27 +391,9 @@
             return internalSetBitrateParams(bitRate);
         }
 
-        case OMX_IndexParamVideoVp8: {
-            const OMX_VIDEO_PARAM_VP8TYPE *vp8Params =
-                (const OMX_VIDEO_PARAM_VP8TYPE*) param;
-
-            if (!isValidOMXParam(vp8Params)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            return internalSetVp8Params(vp8Params);
-        }
-
-        case OMX_IndexParamVideoAndroidVp8Encoder: {
-            const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vp8AndroidParams =
-                (const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE*) param;
-
-            if (!isValidOMXParam(vp8AndroidParams)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            return internalSetAndroidVp8Params(vp8AndroidParams);
-        }
+        case OMX_IndexParamVideoAndroidVp8Encoder:
+            return internalSetAndroidVpxParams(
+                (const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *)param);
 
         default:
             return SoftVideoEncoderOMXComponent::internalSetParameter(index, param);
@@ -530,77 +445,21 @@
     }
 }
 
-OMX_ERRORTYPE SoftVPXEncoder::internalSetVp8Params(
-        const OMX_VIDEO_PARAM_VP8TYPE* vp8Params) {
-    if (vp8Params->nPortIndex != kOutputPortIndex) {
+OMX_ERRORTYPE SoftVPXEncoder::internalGetBitrateParams(
+        OMX_VIDEO_PARAM_BITRATETYPE* bitrate) {
+    if (bitrate->nPortIndex != kOutputPortIndex) {
         return OMX_ErrorUnsupportedIndex;
     }
 
-    if (vp8Params->eProfile != OMX_VIDEO_VP8ProfileMain) {
-        return OMX_ErrorBadParameter;
-    }
+    bitrate->nTargetBitrate = mBitrate;
 
-    if (vp8Params->eLevel == OMX_VIDEO_VP8Level_Version0 ||
-        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version1 ||
-        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version2 ||
-        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version3) {
-        mLevel = vp8Params->eLevel;
+    if (mBitrateControlMode == VPX_VBR) {
+        bitrate->eControlRate = OMX_Video_ControlRateVariable;
+    } else if (mBitrateControlMode == VPX_CBR) {
+        bitrate->eControlRate = OMX_Video_ControlRateConstant;
     } else {
-        return OMX_ErrorBadParameter;
+        return OMX_ErrorUnsupportedSetting;
     }
-
-    if (vp8Params->nDCTPartitions <= kMaxDCTPartitions) {
-        mDCTPartitions = vp8Params->nDCTPartitions;
-    } else {
-        return OMX_ErrorBadParameter;
-    }
-
-    mErrorResilience = vp8Params->bErrorResilientMode;
-    return OMX_ErrorNone;
-}
-
-OMX_ERRORTYPE SoftVPXEncoder::internalSetAndroidVp8Params(
-        const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE* vp8AndroidParams) {
-    if (vp8AndroidParams->nPortIndex != kOutputPortIndex) {
-        return OMX_ErrorUnsupportedIndex;
-    }
-    if (vp8AndroidParams->eTemporalPattern != OMX_VIDEO_VPXTemporalLayerPatternNone &&
-        vp8AndroidParams->eTemporalPattern != OMX_VIDEO_VPXTemporalLayerPatternWebRTC) {
-        return OMX_ErrorBadParameter;
-    }
-    if (vp8AndroidParams->nTemporalLayerCount > OMX_VIDEO_ANDROID_MAXVP8TEMPORALLAYERS) {
-        return OMX_ErrorBadParameter;
-    }
-    if (vp8AndroidParams->nMinQuantizer > vp8AndroidParams->nMaxQuantizer) {
-        return OMX_ErrorBadParameter;
-    }
-
-    mTemporalPatternType = vp8AndroidParams->eTemporalPattern;
-    if (vp8AndroidParams->eTemporalPattern == OMX_VIDEO_VPXTemporalLayerPatternWebRTC) {
-        mTemporalLayers = vp8AndroidParams->nTemporalLayerCount;
-    } else if (vp8AndroidParams->eTemporalPattern == OMX_VIDEO_VPXTemporalLayerPatternNone) {
-        mTemporalLayers = 0;
-    }
-    // Check the bitrate distribution between layers is in increasing order
-    if (mTemporalLayers > 1) {
-        for (size_t i = 0; i < mTemporalLayers - 1; i++) {
-            if (vp8AndroidParams->nTemporalLayerBitrateRatio[i + 1] <=
-                    vp8AndroidParams->nTemporalLayerBitrateRatio[i]) {
-                ALOGE("Wrong bitrate ratio - should be in increasing order.");
-                return OMX_ErrorBadParameter;
-            }
-        }
-    }
-    mKeyFrameInterval = vp8AndroidParams->nKeyFrameInterval;
-    mMinQuantizer = vp8AndroidParams->nMinQuantizer;
-    mMaxQuantizer = vp8AndroidParams->nMaxQuantizer;
-    memcpy(mTemporalLayerBitrateRatio, vp8AndroidParams->nTemporalLayerBitrateRatio,
-            sizeof(mTemporalLayerBitrateRatio));
-    ALOGD("VP8: internalSetAndroidVp8Params. BRMode: %u. TS: %zu. KF: %u."
-          " QP: %u - %u BR0: %u. BR1: %u. BR2: %u",
-          (uint32_t)mBitrateControlMode, mTemporalLayers, mKeyFrameInterval,
-          mMinQuantizer, mMaxQuantizer, mTemporalLayerBitrateRatio[0],
-          mTemporalLayerBitrateRatio[1], mTemporalLayerBitrateRatio[2]);
     return OMX_ErrorNone;
 }
 
@@ -623,71 +482,134 @@
     return OMX_ErrorNone;
 }
 
+OMX_ERRORTYPE SoftVPXEncoder::internalGetAndroidVpxParams(
+        OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vpxAndroidParams) {
+    if (vpxAndroidParams->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+
+    vpxAndroidParams->nKeyFrameInterval = mKeyFrameInterval;
+    vpxAndroidParams->eTemporalPattern = mTemporalPatternType;
+    vpxAndroidParams->nTemporalLayerCount = mTemporalLayers;
+    vpxAndroidParams->nMinQuantizer = mMinQuantizer;
+    vpxAndroidParams->nMaxQuantizer = mMaxQuantizer;
+    memcpy(vpxAndroidParams->nTemporalLayerBitrateRatio,
+           mTemporalLayerBitrateRatio, sizeof(mTemporalLayerBitrateRatio));
+    return OMX_ErrorNone;
+}
+
+OMX_ERRORTYPE SoftVPXEncoder::internalSetAndroidVpxParams(
+        const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vpxAndroidParams) {
+    if (vpxAndroidParams->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+    if (vpxAndroidParams->eTemporalPattern != OMX_VIDEO_VPXTemporalLayerPatternNone &&
+            vpxAndroidParams->eTemporalPattern != OMX_VIDEO_VPXTemporalLayerPatternWebRTC) {
+        return OMX_ErrorBadParameter;
+    }
+    if (vpxAndroidParams->nTemporalLayerCount > OMX_VIDEO_ANDROID_MAXVP8TEMPORALLAYERS) {
+        return OMX_ErrorBadParameter;
+    }
+    if (vpxAndroidParams->nMinQuantizer > vpxAndroidParams->nMaxQuantizer) {
+        return OMX_ErrorBadParameter;
+    }
+
+    mTemporalPatternType = vpxAndroidParams->eTemporalPattern;
+    if (vpxAndroidParams->eTemporalPattern == OMX_VIDEO_VPXTemporalLayerPatternWebRTC) {
+        mTemporalLayers = vpxAndroidParams->nTemporalLayerCount;
+    } else if (vpxAndroidParams->eTemporalPattern == OMX_VIDEO_VPXTemporalLayerPatternNone) {
+        mTemporalLayers = 0;
+    }
+    // Check the bitrate distribution between layers is in increasing order
+    if (mTemporalLayers > 1) {
+        for (size_t i = 0; i < mTemporalLayers - 1; i++) {
+            if (vpxAndroidParams->nTemporalLayerBitrateRatio[i + 1] <=
+                    vpxAndroidParams->nTemporalLayerBitrateRatio[i]) {
+                ALOGE("Wrong bitrate ratio - should be in increasing order.");
+                return OMX_ErrorBadParameter;
+            }
+        }
+    }
+    mKeyFrameInterval = vpxAndroidParams->nKeyFrameInterval;
+    mMinQuantizer = vpxAndroidParams->nMinQuantizer;
+    mMaxQuantizer = vpxAndroidParams->nMaxQuantizer;
+    memcpy(mTemporalLayerBitrateRatio, vpxAndroidParams->nTemporalLayerBitrateRatio,
+            sizeof(mTemporalLayerBitrateRatio));
+    ALOGD("VPx: internalSetAndroidVpxParams. BRMode: %u. TS: %zu. KF: %u."
+            " QP: %u - %u BR0: %u. BR1: %u. BR2: %u",
+            (uint32_t)mBitrateControlMode, mTemporalLayers, mKeyFrameInterval,
+            mMinQuantizer, mMaxQuantizer, mTemporalLayerBitrateRatio[0],
+            mTemporalLayerBitrateRatio[1], mTemporalLayerBitrateRatio[2]);
+    return OMX_ErrorNone;
+}
+
 vpx_enc_frame_flags_t SoftVPXEncoder::getEncodeFlags() {
     vpx_enc_frame_flags_t flags = 0;
-    int patternIdx = mTemporalPatternIdx % mTemporalPatternLength;
-    mTemporalPatternIdx++;
-    switch (mTemporalPattern[patternIdx]) {
-        case kTemporalUpdateLast:
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_REF_GF;
-            flags |= VP8_EFLAG_NO_REF_ARF;
-            break;
-        case kTemporalUpdateGoldenWithoutDependency:
-            flags |= VP8_EFLAG_NO_REF_GF;
-            // Deliberately no break here.
-        case kTemporalUpdateGolden:
-            flags |= VP8_EFLAG_NO_REF_ARF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            break;
-        case kTemporalUpdateAltrefWithoutDependency:
-            flags |= VP8_EFLAG_NO_REF_ARF;
-            flags |= VP8_EFLAG_NO_REF_GF;
-            // Deliberately no break here.
-        case kTemporalUpdateAltref:
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            break;
-        case kTemporalUpdateNoneNoRefAltref:
-            flags |= VP8_EFLAG_NO_REF_ARF;
-            // Deliberately no break here.
-        case kTemporalUpdateNone:
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            flags |= VP8_EFLAG_NO_UPD_ENTROPY;
-            break;
-        case kTemporalUpdateNoneNoRefGoldenRefAltRef:
-            flags |= VP8_EFLAG_NO_REF_GF;
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            flags |= VP8_EFLAG_NO_UPD_ENTROPY;
-            break;
-        case kTemporalUpdateGoldenWithoutDependencyRefAltRef:
-            flags |= VP8_EFLAG_NO_REF_GF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            break;
-        case kTemporalUpdateLastRefAltRef:
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_REF_GF;
-            break;
-        case kTemporalUpdateGoldenRefAltRef:
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            break;
-        case kTemporalUpdateLastAndGoldenRefAltRef:
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_REF_GF;
-            break;
-        case kTemporalUpdateLastRefAll:
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            break;
+    if (mTemporalPatternLength > 0) {
+      int patternIdx = mTemporalPatternIdx % mTemporalPatternLength;
+      mTemporalPatternIdx++;
+      switch (mTemporalPattern[patternIdx]) {
+          case kTemporalUpdateLast:
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_REF_GF;
+              flags |= VP8_EFLAG_NO_REF_ARF;
+              break;
+          case kTemporalUpdateGoldenWithoutDependency:
+              flags |= VP8_EFLAG_NO_REF_GF;
+              // Deliberately no break here.
+          case kTemporalUpdateGolden:
+              flags |= VP8_EFLAG_NO_REF_ARF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              break;
+          case kTemporalUpdateAltrefWithoutDependency:
+              flags |= VP8_EFLAG_NO_REF_ARF;
+              flags |= VP8_EFLAG_NO_REF_GF;
+              // Deliberately no break here.
+          case kTemporalUpdateAltref:
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              break;
+          case kTemporalUpdateNoneNoRefAltref:
+              flags |= VP8_EFLAG_NO_REF_ARF;
+              // Deliberately no break here.
+          case kTemporalUpdateNone:
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              flags |= VP8_EFLAG_NO_UPD_ENTROPY;
+              break;
+          case kTemporalUpdateNoneNoRefGoldenRefAltRef:
+              flags |= VP8_EFLAG_NO_REF_GF;
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              flags |= VP8_EFLAG_NO_UPD_ENTROPY;
+              break;
+          case kTemporalUpdateGoldenWithoutDependencyRefAltRef:
+              flags |= VP8_EFLAG_NO_REF_GF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              break;
+          case kTemporalUpdateLastRefAltRef:
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_REF_GF;
+              break;
+          case kTemporalUpdateGoldenRefAltRef:
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              break;
+          case kTemporalUpdateLastAndGoldenRefAltRef:
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_REF_GF;
+              break;
+          case kTemporalUpdateLastRefAll:
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              break;
+      }
     }
     return flags;
 }
@@ -765,10 +687,7 @@
         vpx_img_wrap(&raw_frame, VPX_IMG_FMT_I420, mWidth, mHeight,
                      kInputBufferAlignment, (uint8_t *)source);
 
-        vpx_enc_frame_flags_t flags = 0;
-        if (mTemporalPatternLength > 0) {
-            flags = getEncodeFlags();
-        }
+        vpx_enc_frame_flags_t flags = getEncodeFlags();
         if (mKeyFrameRequested) {
             flags |= VPX_EFLAG_FORCE_KF;
             mKeyFrameRequested = false;
@@ -779,7 +698,7 @@
             vpx_codec_err_t res = vpx_codec_enc_config_set(mCodecContext,
                                                            mCodecConfiguration);
             if (res != VPX_CODEC_OK) {
-                ALOGE("vp8 encoder failed to update bitrate: %s",
+                ALOGE("vpx encoder failed to update bitrate: %s",
                       vpx_codec_err_to_string(res));
                 notify(OMX_EventError,
                        OMX_ErrorUndefined,
@@ -856,9 +775,15 @@
 
 }  // namespace android
 
-
 android::SoftOMXComponent *createSoftOMXComponent(
         const char *name, const OMX_CALLBACKTYPE *callbacks,
         OMX_PTR appData, OMX_COMPONENTTYPE **component) {
-    return new android::SoftVPXEncoder(name, callbacks, appData, component);
+  if (!strcmp(name, "OMX.google.vp8.encoder")) {
+      return new android::SoftVP8Encoder(name, callbacks, appData, component);
+  } else if (!strcmp(name, "OMX.google.vp9.encoder")) {
+      return new android::SoftVP9Encoder(name, callbacks, appData, component);
+  } else {
+      CHECK(!"Unknown component");
+  }
+  return NULL;
 }
diff --git a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h
index 2033e64..86dfad7 100644
--- a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h
+++ b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h
@@ -31,18 +31,18 @@
 
 namespace android {
 
-// Exposes a vpx encoder as an OMX Component
+// Base class for a VPX Encoder OMX Component
 //
 // Boilerplate for callback bindings are taken care
 // by the base class SimpleSoftOMXComponent and its
 // parent SoftOMXComponent.
 //
-// Only following encoder settings are available
+// Only following encoder settings are available (codec specific settings might
+// be available in the sub-classes):
 //    - target bitrate
 //    - rate control (constant / variable)
 //    - frame rate
 //    - error resilience
-//    - token partitioning
 //    - reconstruction & loop filters (g_profile)
 //
 // Only following color formats are recognized
@@ -54,7 +54,7 @@
 //    - encoding deadline is realtime
 //    - multithreaded encoding utilizes a number of threads equal
 // to online cpu's available
-//    - the algorithm interface for encoder is vp8
+//    - the algorithm interface for encoder is decided by the sub-class in use
 //    - fractional bits of frame rate is discarded
 //    - OMX timestamps are in microseconds, therefore
 // encoder timebase is fixed to 1/1000000
@@ -63,7 +63,13 @@
     SoftVPXEncoder(const char *name,
                    const OMX_CALLBACKTYPE *callbacks,
                    OMX_PTR appData,
-                   OMX_COMPONENTTYPE **component);
+                   OMX_COMPONENTTYPE **component,
+                   const char* role,
+                   OMX_VIDEO_CODINGTYPE codingType,
+                   const char* mimeType,
+                   int32_t minCompressionRatio,
+                   const CodecProfileLevel *profileLevels,
+                   size_t numProfileLevels);
 
 protected:
     virtual ~SoftVPXEncoder();
@@ -89,7 +95,44 @@
 
     virtual void onReset();
 
-private:
+    // Initializes vpx encoder with available settings.
+    status_t initEncoder();
+
+    // Populates mCodecInterface with codec specific settings.
+    virtual void setCodecSpecificInterface() = 0;
+
+    // Sets codec specific configuration.
+    virtual void setCodecSpecificConfiguration() = 0;
+
+    // Sets codec specific encoder controls.
+    virtual vpx_codec_err_t setCodecSpecificControls() = 0;
+
+    // Get current encode flags.
+    virtual vpx_enc_frame_flags_t getEncodeFlags();
+
+    // Releases vpx encoder instance, with it's associated
+    // data structures.
+    //
+    // Unless called earlier, this is handled by the
+    // dtor.
+    status_t releaseEncoder();
+
+    // Get bitrate parameters.
+    virtual OMX_ERRORTYPE internalGetBitrateParams(
+        OMX_VIDEO_PARAM_BITRATETYPE* bitrate);
+
+    // Updates bitrate to reflect port settings.
+    virtual OMX_ERRORTYPE internalSetBitrateParams(
+        const OMX_VIDEO_PARAM_BITRATETYPE* bitrate);
+
+    // Gets Android vpx specific parameters.
+    OMX_ERRORTYPE internalGetAndroidVpxParams(
+            OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vpxAndroidParams);
+
+    // Handles Android vpx specific parameters.
+    OMX_ERRORTYPE internalSetAndroidVpxParams(
+            const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vpxAndroidParams);
+
     enum TemporalReferences {
         // For 1 layer case: reference all (last, golden, and alt ref), but only
         // update last.
@@ -139,9 +182,6 @@
     static const uint32_t kInputBufferAlignment = 1;
     static const uint32_t kOutputBufferAlignment = 2;
 
-    // Max value supported for DCT partitions
-    static const uint32_t kMaxDCTPartitions = 3;
-
     // Number of supported input color formats
     static const uint32_t kNumberOfSupportedColorFormats = 3;
 
@@ -163,23 +203,10 @@
     // Bitrate control mode, either constant or variable
     vpx_rc_mode mBitrateControlMode;
 
-    // vp8 specific configuration parameter
-    // that enables token partitioning of
-    // the stream into substreams
-    int32_t mDCTPartitions;
-
     // Parameter that denotes whether error resilience
     // is enabled in encoder
     OMX_BOOL mErrorResilience;
 
-    // Encoder profile corresponding to OMX level parameter
-    //
-    // The inconsistency in the naming is caused by
-    // OMX spec referring vpx profiles (g_profile)
-    // as "levels" whereas using the name "profile" for
-    // something else.
-    OMX_VIDEO_VP8LEVELTYPE mLevel;
-
     // Key frame interval in frames
     uint32_t mKeyFrameInterval;
 
@@ -218,31 +245,6 @@
 
     bool mKeyFrameRequested;
 
-    // Initializes vpx encoder with available settings.
-    status_t initEncoder();
-
-    // Releases vpx encoder instance, with it's associated
-    // data structures.
-    //
-    // Unless called earlier, this is handled by the
-    // dtor.
-    status_t releaseEncoder();
-
-    // Get current encode flags
-    vpx_enc_frame_flags_t getEncodeFlags();
-
-    // Updates bitrate to reflect port settings.
-    OMX_ERRORTYPE internalSetBitrateParams(
-        const OMX_VIDEO_PARAM_BITRATETYPE* bitrate);
-
-    // Handles vp8 specific parameters.
-    OMX_ERRORTYPE internalSetVp8Params(
-        const OMX_VIDEO_PARAM_VP8TYPE* vp8Params);
-
-    // Handles Android vp8 specific parameters.
-    OMX_ERRORTYPE internalSetAndroidVp8Params(
-        const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE* vp8AndroidParams);
-
     DISALLOW_EVIL_CONSTRUCTORS(SoftVPXEncoder);
 };
 
diff --git a/media/libstagefright/codecs/on2/h264dec/Android.mk b/media/libstagefright/codecs/on2/h264dec/Android.mk
index 7159674..10147ec 100644
--- a/media/libstagefright/codecs/on2/h264dec/Android.mk
+++ b/media/libstagefright/codecs/on2/h264dec/Android.mk
@@ -95,11 +95,12 @@
                         $(LOCAL_PATH)/./omxdl/arm_neon/vc/m4p10/api
 endif
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libstagefright_omx libstagefright_foundation libutils liblog \
+	libmedia libstagefright_omx libstagefright_foundation libutils liblog \
 
 LOCAL_MODULE := libstagefright_soft_h264dec
 
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/ARM_DELIVERY.TXT b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/ARM_DELIVERY.TXT
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/ARM_MANIFEST.TXT b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/ARM_MANIFEST.TXT
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/filelist_vc.txt b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/filelist_vc.txt
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_Copy16x16_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_Copy16x16_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_Copy8x8_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_Copy8x8_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_ExpandFrame_I_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_ExpandFrame_I_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_Average_4x_Align_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_Average_4x_Align_unsafe_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DeblockingChroma_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DeblockingChroma_unsafe_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DeblockingLuma_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DeblockingLuma_unsafe_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DecodeCoeffsToPair_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DecodeCoeffsToPair_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DequantTables_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DequantTables_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_Align_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_Align_unsafe_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_Copy_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_Copy_unsafe_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_DiagCopy_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_DiagCopy_unsafe_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfDiagHorVer4x4_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfDiagHorVer4x4_unsafe_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfDiagVerHor4x4_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfDiagVerHor4x4_unsafe_s.s
old mode 100755
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfHor4x4_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfHor4x4_unsafe_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfVer4x4_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfVer4x4_unsafe_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_Interpolate_Chroma_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_Interpolate_Chroma_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_QuantTables_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_QuantTables_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_TransformResidual4x4_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_TransformResidual4x4_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_UnpackBlock4x4_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_UnpackBlock4x4_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_DequantTransformResidualFromPairAndAdd_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_DequantTransformResidualFromPairAndAdd_s.s
old mode 100755
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_FilterDeblockingLuma_HorEdge_I_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_FilterDeblockingLuma_HorEdge_I_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_FilterDeblockingLuma_VerEdge_I_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_FilterDeblockingLuma_VerEdge_I_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_InterpolateLuma_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_InterpolateLuma_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntraChroma_8x8_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntraChroma_8x8_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntra_16x16_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntra_16x16_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntra_4x4_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntra_4x4_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_TransformDequantChromaDCFromPair_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_TransformDequantChromaDCFromPair_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_TransformDequantLumaDCFromPair_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_TransformDequantLumaDCFromPair_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_Clip8_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_Clip8_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_DecodeVLCZigzag_AC_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_DecodeVLCZigzag_AC_unsafe_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_SetPredDir_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_SetPredDir_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodePadMV_PVOP_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodePadMV_PVOP_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_Inter_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_Inter_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraACVLC_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraACVLC_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraDCVLC_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraDCVLC_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_FindMVpred_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_FindMVpred_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_IDCT8x8blk_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_IDCT8x8blk_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_MCReconBlock_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_MCReconBlock_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_PredictReconCoefIntra_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_PredictReconCoefIntra_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_QuantInvInter_I_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_QuantInvInter_I_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_QuantInvIntra_I_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_QuantInvIntra_I_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/H264SwDecApi.c b/media/libstagefright/codecs/on2/h264dec/source/H264SwDecApi.c
index f820dfd..a9b38e5 100644
--- a/media/libstagefright/codecs/on2/h264dec/source/H264SwDecApi.c
+++ b/media/libstagefright/codecs/on2/h264dec/source/H264SwDecApi.c
@@ -35,10 +35,12 @@
 /*------------------------------------------------------------------------------
     1. Include headers
 ------------------------------------------------------------------------------*/
-#include <log/log.h>
 
 #include <stdlib.h>
 #include <string.h>
+
+#include <log/log.h>
+
 #include "basetype.h"
 #include "h264bsd_container.h"
 #include "H264SwDecApi.h"
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor_ver.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor_ver.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_ver.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_ver.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_half.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_half.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_quarter.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_quarter.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_ver_quarter.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_ver_quarter.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_mid_hor.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_mid_hor.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_half.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_half.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_quarter.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_quarter.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/h264bsd_cavlc.c b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_cavlc.c
index 91d78bd..422d7ba 100644
--- a/media/libstagefright/codecs/on2/h264dec/source/h264bsd_cavlc.c
+++ b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_cavlc.c
@@ -60,7 +60,7 @@
 #define INFO(vlc) (((vlc) >> 4) & 0xF)  /* 4 MSB bits contain information */
 /* macro to obtain trailing ones from the coeff token information word,
  * bits [5,10] */
-#define TRAILING_ONES(coeffToken) ((coeffToken>>5) & 0x3F)
+#define TRAILING_ONES(coeffToken) (((coeffToken)>>5) & 0x3F)
 /* macro to obtain total coeff from the coeff token information word,
  * bits [11,15] */
 #define TOTAL_COEFF(coeffToken) (((coeffToken) >> 11) & 0x1F)
@@ -323,45 +323,45 @@
 /* macro to initialize stream buffer cache, fills the buffer (32 bits) */
 #define BUFFER_INIT(value, bits) \
 { \
-    bits = 32; \
-    value = h264bsdShowBits32(pStrmData); \
+    (bits) = 32; \
+    (value) = h264bsdShowBits32(pStrmData); \
 }
 
 /* macro to read numBits bits from the buffer, bits will be written to
  * outVal. Refills the buffer if not enough bits left */
 #define BUFFER_SHOW(value, bits, outVal, numBits) \
 { \
-    if (bits < (numBits)) \
+    if ((bits) < (numBits)) \
     { \
-        if(h264bsdFlushBits(pStrmData,32-bits) == END_OF_STREAM) \
+        if(h264bsdFlushBits(pStrmData,32-(bits)) == END_OF_STREAM) \
             return(HANTRO_NOK); \
-        value = h264bsdShowBits32(pStrmData); \
-        bits = 32; \
+        (value) = h264bsdShowBits32(pStrmData); \
+        (bits) = 32; \
     } \
-    (outVal) = value >> (32 - (numBits)); \
+    (outVal) = (value) >> (32 - (numBits)); \
 }
 
 /* macro to flush numBits bits from the buffer */
 #define BUFFER_FLUSH(value, bits, numBits) \
 { \
-    value <<= (numBits); \
-    bits -= (numBits); \
+    (value) <<= (numBits); \
+    (bits) -= (numBits); \
 }
 
 /* macro to read and flush  numBits bits from the buffer, bits will be written
  * to outVal. Refills the buffer if not enough bits left */
 #define BUFFER_GET(value, bits, outVal, numBits) \
 { \
-    if (bits < (numBits)) \
+    if ((bits) < (numBits)) \
     { \
-        if(h264bsdFlushBits(pStrmData,32-bits) == END_OF_STREAM) \
+        if(h264bsdFlushBits(pStrmData,32-(bits)) == END_OF_STREAM) \
             return(HANTRO_NOK); \
-        value = h264bsdShowBits32(pStrmData); \
-        bits = 32; \
+        (value) = h264bsdShowBits32(pStrmData); \
+        (bits) = 32; \
     } \
-    (outVal) = value >> (32 - (numBits)); \
-    value <<= (numBits); \
-    bits -= (numBits); \
+    (outVal) = (value) >> (32 - (numBits)); \
+    (value) <<= (numBits); \
+    (bits) -= (numBits); \
 }
 
 /*------------------------------------------------------------------------------
diff --git a/media/libstagefright/codecs/on2/h264dec/source/h264bsd_dpb.c b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_dpb.c
index 799bd16..bd9eee9 100644
--- a/media/libstagefright/codecs/on2/h264dec/source/h264bsd_dpb.c
+++ b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_dpb.c
@@ -61,6 +61,7 @@
 #include "basetype.h"
 
 #include <log/log.h>
+
 /*------------------------------------------------------------------------------
     2. External compiler flags
 --------------------------------------------------------------------------------
diff --git a/media/libstagefright/codecs/on2/h264dec/source/h264bsd_util.h b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_util.h
index 9f0eb7d..f43cf82 100644
--- a/media/libstagefright/codecs/on2/h264dec/source/h264bsd_util.h
+++ b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_util.h
@@ -151,7 +151,7 @@
 }
 
 #define ALIGN(ptr, bytePos) \
-        (ptr + ( ((bytePos - (uintptr_t)ptr) & (bytePos - 1)) / sizeof(*ptr) ))
+        ((ptr) + ( (((bytePos) - (uintptr_t)(ptr)) & ((bytePos) - 1)) / sizeof(*(ptr)) ))
 
 extern const u32 h264bsdQpC[52];
 
diff --git a/media/libstagefright/codecs/opus/dec/Android.mk b/media/libstagefright/codecs/opus/dec/Android.mk
index f272763..5b887b3 100644
--- a/media/libstagefright/codecs/opus/dec/Android.mk
+++ b/media/libstagefright/codecs/opus/dec/Android.mk
@@ -10,11 +10,12 @@
         frameworks/native/include/media/openmax \
 
 LOCAL_SHARED_LIBRARIES := \
-        libopus libstagefright libstagefright_omx \
+        libopus libmedia libstagefright_omx \
         libstagefright_foundation libutils liblog
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_MODULE := libstagefright_soft_opusdec
 LOCAL_MODULE_TAGS := optional
diff --git a/media/libstagefright/codecs/opus/dec/SoftOpus.cpp b/media/libstagefright/codecs/opus/dec/SoftOpus.cpp
index 2e44ed7..2ac6ce0 100644
--- a/media/libstagefright/codecs/opus/dec/SoftOpus.cpp
+++ b/media/libstagefright/codecs/opus/dec/SoftOpus.cpp
@@ -430,7 +430,7 @@
         BufferInfo *outInfo = *outQueue.begin();
         OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
 
-        if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
+        if ((inHeader->nFlags & OMX_BUFFERFLAG_EOS) && inHeader->nFilledLen == 0) {
             inQueue.erase(inQueue.begin());
             inInfo->mOwnedByUs = false;
             notifyEmptyBufferDone(inHeader);
@@ -498,11 +498,15 @@
 
         mNumFramesOutput += numFrames;
 
-        inInfo->mOwnedByUs = false;
-        inQueue.erase(inQueue.begin());
-        inInfo = NULL;
-        notifyEmptyBufferDone(inHeader);
-        inHeader = NULL;
+        if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
+            inHeader->nFilledLen = 0;
+        } else {
+            inInfo->mOwnedByUs = false;
+            inQueue.erase(inQueue.begin());
+            inInfo = NULL;
+            notifyEmptyBufferDone(inHeader);
+            inHeader = NULL;
+        }
 
         outInfo->mOwnedByUs = false;
         outQueue.erase(outQueue.begin());
diff --git a/media/libstagefright/codecs/raw/Android.mk b/media/libstagefright/codecs/raw/Android.mk
index e454c84..5fe260b 100644
--- a/media/libstagefright/codecs/raw/Android.mk
+++ b/media/libstagefright/codecs/raw/Android.mk
@@ -9,8 +9,8 @@
         frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
         libstagefright_omx libstagefright_foundation libutils liblog
diff --git a/media/libstagefright/codecs/vorbis/dec/Android.mk b/media/libstagefright/codecs/vorbis/dec/Android.mk
index 039be6f..3d72d3a 100644
--- a/media/libstagefright/codecs/vorbis/dec/Android.mk
+++ b/media/libstagefright/codecs/vorbis/dec/Android.mk
@@ -10,14 +10,13 @@
         frameworks/native/include/media/openmax \
 
 LOCAL_SHARED_LIBRARIES := \
-        libvorbisidec libstagefright libstagefright_omx \
+        libvorbisidec libmedia libstagefright_omx \
         libstagefright_foundation libutils liblog
 
 LOCAL_MODULE := libstagefright_soft_vorbisdec
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/colorconversion/Android.mk b/media/libstagefright/colorconversion/Android.mk
index 0bf9701..1e7a4cc 100644
--- a/media/libstagefright/colorconversion/Android.mk
+++ b/media/libstagefright/colorconversion/Android.mk
@@ -10,12 +10,15 @@
         $(TOP)/hardware/msm7k \
         $(TOP)/external/libyuv/files/include
 
+LOCAL_SHARED_LIBRARIES := \
+        libui \
+
 LOCAL_STATIC_LIBRARIES := \
         libyuv_static \
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_MODULE:= libstagefright_color_conversion
 
diff --git a/media/libstagefright/colorconversion/SoftwareRenderer.cpp b/media/libstagefright/colorconversion/SoftwareRenderer.cpp
index bbc4d26..536d40d 100644
--- a/media/libstagefright/colorconversion/SoftwareRenderer.cpp
+++ b/media/libstagefright/colorconversion/SoftwareRenderer.cpp
@@ -23,8 +23,10 @@
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <system/window.h>
+#include <ui/Fence.h>
 #include <ui/GraphicBufferMapper.h>
-#include <gui/IGraphicBufferProducer.h>
+#include <ui/GraphicBuffer.h>
+#include <ui/Rect.h>
 
 namespace android {
 
diff --git a/media/libstagefright/data/media_codecs_google_video.xml b/media/libstagefright/data/media_codecs_google_video.xml
index b03c769..ce164a2 100644
--- a/media/libstagefright/data/media_codecs_google_video.xml
+++ b/media/libstagefright/data/media_codecs_google_video.xml
@@ -101,5 +101,12 @@
             <Limit name="bitrate" range="1-40000000" />
             <Feature name="bitrate-modes" value="VBR,CBR" />
         </MediaCodec>
+        <MediaCodec name="OMX.google.vp9.encoder" type="video/x-vnd.on2.vp9">
+            <!-- profiles and levels:  ProfileMain : Level_Version0-3 -->
+            <Limit name="size" min="2x2" max="2048x2048" />
+            <Limit name="alignment" value="2x2" />
+            <Limit name="bitrate" range="1-40000000" />
+            <Feature name="bitrate-modes" value="VBR,CBR" />
+        </MediaCodec>
     </Encoders>
 </Included>
diff --git a/media/libstagefright/filters/Android.mk b/media/libstagefright/filters/Android.mk
index 179f054..d4ecfcc 100644
--- a/media/libstagefright/filters/Android.mk
+++ b/media/libstagefright/filters/Android.mk
@@ -21,8 +21,15 @@
 LOCAL_C_INCLUDES += $(intermediates)
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
+
+LOCAL_SHARED_LIBRARIES := \
+        libgui \
+        libmedia \
+        libhidlmemory \
 
 LOCAL_MODULE:= libstagefright_mediafilter
 
+LOCAL_SANITIZE := cfi
+LOCAL_SANITIZE_DIAG := cfi
+
 include $(BUILD_STATIC_LIBRARY)
diff --git a/media/libstagefright/filters/GraphicBufferListener.cpp b/media/libstagefright/filters/GraphicBufferListener.cpp
index c1aaa17..db061c1 100644
--- a/media/libstagefright/filters/GraphicBufferListener.cpp
+++ b/media/libstagefright/filters/GraphicBufferListener.cpp
@@ -22,6 +22,7 @@
 #include <media/stagefright/MediaErrors.h>
 
 #include <gui/BufferItem.h>
+#include <utils/String8.h>
 
 #include "GraphicBufferListener.h"
 
diff --git a/media/libstagefright/filters/IntrinsicBlurFilter.cpp b/media/libstagefright/filters/IntrinsicBlurFilter.cpp
index cbcf699..e00afd9 100644
--- a/media/libstagefright/filters/IntrinsicBlurFilter.cpp
+++ b/media/libstagefright/filters/IntrinsicBlurFilter.cpp
@@ -19,7 +19,7 @@
 
 #include <utils/Log.h>
 
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 
@@ -88,7 +88,7 @@
 }
 
 status_t IntrinsicBlurFilter::processBuffers(
-        const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) {
+        const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer) {
     mAllocIn->copy1DRangeFrom(0, mWidth * mHeight, srcBuffer->data());
     mBlur->forEach(mAllocOut);
     mAllocOut->copy1DRangeTo(0, mWidth * mHeight, outBuffer->data());
diff --git a/media/libstagefright/filters/IntrinsicBlurFilter.h b/media/libstagefright/filters/IntrinsicBlurFilter.h
index 4707ab7..a2aabfa 100644
--- a/media/libstagefright/filters/IntrinsicBlurFilter.h
+++ b/media/libstagefright/filters/IntrinsicBlurFilter.h
@@ -31,7 +31,7 @@
     virtual void reset();
     virtual status_t setParameters(const sp<AMessage> &msg);
     virtual status_t processBuffers(
-            const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer);
+            const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer);
 
 protected:
     virtual ~IntrinsicBlurFilter() {};
diff --git a/media/libstagefright/filters/MediaFilter.cpp b/media/libstagefright/filters/MediaFilter.cpp
index cd69418..777ab5b 100644
--- a/media/libstagefright/filters/MediaFilter.cpp
+++ b/media/libstagefright/filters/MediaFilter.cpp
@@ -31,6 +31,8 @@
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaFilter.h>
 
+#include <media/MediaCodecBuffer.h>
+
 #include <gui/BufferItem.h>
 
 #include "ColorConvert.h"
@@ -40,6 +42,9 @@
 #include "SaturationFilter.h"
 #include "ZeroFilter.h"
 
+#include "../include/ACodecBufferChannel.h"
+#include "../include/SharedMemoryBuffer.h"
+
 namespace android {
 
 // parameter: number of input and output buffers
@@ -49,6 +54,9 @@
     : mState(UNINITIALIZED),
       mGeneration(0),
       mGraphicBufferListener(NULL) {
+    mBufferChannel = std::make_shared<ACodecBufferChannel>(
+            new AMessage(kWhatInputBufferFilled, this),
+            new AMessage(kWhatOutputBufferDrained, this));
 }
 
 MediaFilter::~MediaFilter() {
@@ -56,8 +64,8 @@
 
 //////////////////// PUBLIC FUNCTIONS //////////////////////////////////////////
 
-void MediaFilter::setNotificationMessage(const sp<AMessage> &msg) {
-    mNotify = msg;
+std::shared_ptr<BufferChannelBase> MediaFilter::getBufferChannel() {
+    return mBufferChannel;
 }
 
 void MediaFilter::initiateAllocateComponent(const sp<AMessage> &msg) {
@@ -189,29 +197,6 @@
     }
 }
 
-//////////////////// PORT DESCRIPTION //////////////////////////////////////////
-
-MediaFilter::PortDescription::PortDescription() {
-}
-
-void MediaFilter::PortDescription::addBuffer(
-        IOMX::buffer_id id, const sp<ABuffer> &buffer) {
-    mBufferIDs.push_back(id);
-    mBuffers.push_back(buffer);
-}
-
-size_t MediaFilter::PortDescription::countBuffers() {
-    return mBufferIDs.size();
-}
-
-IOMX::buffer_id MediaFilter::PortDescription::bufferIDAt(size_t index) const {
-    return mBufferIDs.itemAt(index);
-}
-
-sp<ABuffer> MediaFilter::PortDescription::bufferAt(size_t index) const {
-    return mBuffers.itemAt(index);
-}
-
 //////////////////// HELPER FUNCTIONS //////////////////////////////////////////
 
 void MediaFilter::signalProcessBuffers() {
@@ -219,10 +204,7 @@
 }
 
 void MediaFilter::signalError(status_t error) {
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatError);
-    notify->setInt32("err", error);
-    notify->post();
+    mCallback->onError(error, ACTION_CODE_FATAL);
 }
 
 status_t MediaFilter::allocateBuffersOnPort(OMX_U32 portIndex) {
@@ -250,7 +232,8 @@
         info.mBufferID = i;
         info.mGeneration = mGeneration;
         info.mOutputFlags = 0;
-        info.mData = new ABuffer(mem->pointer(), bufferSize);
+        info.mData = new SharedMemoryBuffer(
+                isInput ? mInputFormat : mOutputFormat, mem);
         info.mData->meta()->setInt64("timeUs", 0);
 
         mBuffers[portIndex].push_back(info);
@@ -261,21 +244,15 @@
         }
     }
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatBuffersAllocated);
-
-    notify->setInt32("portIndex", portIndex);
-
-    sp<PortDescription> desc = new PortDescription;
-
+    std::vector<ACodecBufferChannel::BufferAndId> array(mBuffers[portIndex].size());
     for (size_t i = 0; i < mBuffers[portIndex].size(); ++i) {
-        const BufferInfo &info = mBuffers[portIndex][i];
-
-        desc->addBuffer(info.mBufferID, info.mData);
+        array[i] = {mBuffers[portIndex][i].mData, mBuffers[portIndex][i].mBufferID};
     }
-
-    notify->setObject("portDesc", desc);
-    notify->post();
+    if (portIndex == kPortIndexInput) {
+        mBufferChannel->setInputBufferArray(array);
+    } else {
+        mBufferChannel->setOutputBufferArray(array);
+    }
 
     return OK;
 }
@@ -309,20 +286,14 @@
 
     info->mGeneration = mGeneration;
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatFillThisBuffer);
-    notify->setInt32("buffer-id", info->mBufferID);
-
     info->mData->meta()->clear();
-    notify->setBuffer("buffer", info->mData);
 
     sp<AMessage> reply = new AMessage(kWhatInputBufferFilled, this);
     reply->setInt32("buffer-id", info->mBufferID);
 
-    notify->setMessage("reply", reply);
-
     info->mStatus = BufferInfo::OWNED_BY_UPSTREAM;
-    notify->post();
+
+    mBufferChannel->fillThisBuffer(info->mBufferID);
 }
 
 void MediaFilter::postDrainThisBuffer(BufferInfo *info) {
@@ -330,50 +301,20 @@
 
     info->mGeneration = mGeneration;
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatDrainThisBuffer);
-    notify->setInt32("buffer-id", info->mBufferID);
-    notify->setInt32("flags", info->mOutputFlags);
-    notify->setBuffer("buffer", info->mData);
-
     sp<AMessage> reply = new AMessage(kWhatOutputBufferDrained, this);
     reply->setInt32("buffer-id", info->mBufferID);
 
-    notify->setMessage("reply", reply);
-
-    notify->post();
+    mBufferChannel->drainThisBuffer(info->mBufferID, info->mOutputFlags);
 
     info->mStatus = BufferInfo::OWNED_BY_UPSTREAM;
 }
 
 void MediaFilter::postEOS() {
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatEOS);
-    notify->setInt32("err", ERROR_END_OF_STREAM);
-    notify->post();
+    mCallback->onEos(ERROR_END_OF_STREAM);
 
     ALOGV("Sent kWhatEOS.");
 }
 
-void MediaFilter::sendFormatChange() {
-    sp<AMessage> notify = mNotify->dup();
-
-    notify->setInt32("what", kWhatOutputFormatChanged);
-
-    AString mime;
-    CHECK(mOutputFormat->findString("mime", &mime));
-    notify->setString("mime", mime.c_str());
-
-    notify->setInt32("stride", mStride);
-    notify->setInt32("slice-height", mSliceHeight);
-    notify->setInt32("color-format", mColorFormatOut);
-    notify->setRect("crop", 0, 0, mStride - 1, mSliceHeight - 1);
-    notify->setInt32("width", mWidth);
-    notify->setInt32("height", mHeight);
-
-    notify->post();
-}
-
 void MediaFilter::requestFillEmptyInput() {
     if (mPortEOS[kPortIndexInput]) {
         return;
@@ -459,11 +400,8 @@
         return;
     }
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", kWhatComponentAllocated);
     // HACK - need "OMX.google" to use MediaCodec's software renderer
-    notify->setString("componentName", "OMX.google.MediaFilter");
-    notify->post();
+    mCallback->onComponentAllocated("OMX.google.MediaFilter");
     mState = INITIALIZED;
     ALOGV("Handled kWhatAllocateComponent.");
 }
@@ -540,16 +478,9 @@
     mOutputFormat->setInt32("width", mWidth);
     mOutputFormat->setInt32("height", mHeight);
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", kWhatComponentConfigured);
-    notify->setString("componentName", "MediaFilter");
-    notify->setMessage("input-format", mInputFormat);
-    notify->setMessage("output-format", mOutputFormat);
-    notify->post();
+    mCallback->onComponentConfigured(mInputFormat, mOutputFormat);
     mState = CONFIGURED;
     ALOGV("Handled kWhatConfigureComponent.");
-
-    sendFormatChange();
 }
 
 void MediaFilter::onStart() {
@@ -559,6 +490,8 @@
 
     allocateBuffersOnPort(kPortIndexOutput);
 
+    mCallback->onStartCompleted();
+
     status_t err = mFilter->start();
     if (err != (status_t)OK) {
         ALOGE("Failed to start filter component, err %d", err);
@@ -597,11 +530,12 @@
     CHECK_EQ(info->mStatus, BufferInfo::OWNED_BY_UPSTREAM);
     info->mStatus = BufferInfo::OWNED_BY_US;
 
-    sp<ABuffer> buffer;
+    sp<MediaCodecBuffer> buffer;
     int32_t err = OK;
     bool eos = false;
 
-    if (!msg->findBuffer("buffer", &buffer)) {
+    sp<RefBase> obj;
+    if (!msg->findObject("buffer", &obj)) {
         // these are unfilled buffers returned by client
         CHECK(msg->findInt32("err", &err));
 
@@ -616,6 +550,8 @@
         }
 
         buffer.clear();
+    } else {
+        buffer = static_cast<MediaCodecBuffer *>(obj.get());
     }
 
     int32_t isCSD;
@@ -688,9 +624,11 @@
         mState = INITIALIZED;
     }
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatShutdownCompleted);
-    notify->post();
+    if (keepComponentAllocated) {
+        mCallback->onStopCompleted();
+    } else {
+        mCallback->onReleaseCompleted();
+    }
 }
 
 void MediaFilter::onFlush() {
@@ -712,9 +650,7 @@
     mPortEOS[kPortIndexOutput] = false;
     mInputEOSResult = OK;
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-    notify->post();
+    mCallback->onFlushCompleted();
     ALOGV("Posted kWhatFlushCompleted");
 
     // MediaCodec returns all input buffers after flush, so in
@@ -746,13 +682,10 @@
         return;
     }
 
-    sp<AMessage> reply = mNotify->dup();
-    reply->setInt32("what", CodecBase::kWhatInputSurfaceCreated);
-    reply->setObject(
-            "input-surface",
+    mCallback->onInputSurfaceCreated(
+            nullptr, nullptr,
             new BufferProducerWrapper(
                     mGraphicBufferListener->getIGraphicBufferProducer()));
-    reply->post();
 }
 
 void MediaFilter::onInputFrameAvailable() {
@@ -768,7 +701,8 @@
     // TODO: check input format and convert only if necessary
     // copy RGBA graphic buffer into temporary ARGB input buffer
     BufferInfo *inputInfo = new BufferInfo;
-    inputInfo->mData = new ABuffer(buf->getWidth() * buf->getHeight() * 4);
+    inputInfo->mData = new MediaCodecBuffer(
+            mInputFormat, new ABuffer(buf->getWidth() * buf->getHeight() * 4));
     ALOGV("Copying surface data into temp buffer.");
     convertRGBAToARGB(
             (uint8_t*)bufPtr, buf->getWidth(), buf->getHeight(),
@@ -813,9 +747,7 @@
     }
 
     mPortEOS[kPortIndexOutput] = true;
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatSignaledInputEOS);
-    notify->post();
+    mCallback->onSignaledInputEOS(OK);
 
     ALOGV("Output stream saw EOS.");
 }
diff --git a/media/libstagefright/filters/RSFilter.cpp b/media/libstagefright/filters/RSFilter.cpp
index b569945..225a375 100644
--- a/media/libstagefright/filters/RSFilter.cpp
+++ b/media/libstagefright/filters/RSFilter.cpp
@@ -19,7 +19,7 @@
 
 #include <utils/Log.h>
 
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 
@@ -85,7 +85,7 @@
 }
 
 status_t RSFilter::processBuffers(
-        const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) {
+        const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer) {
     mAllocIn->copy1DRangeFrom(0, mWidth * mHeight, srcBuffer->data());
     mCallback->processBuffers(mAllocIn.get(), mAllocOut.get());
     mAllocOut->copy1DRangeTo(0, mWidth * mHeight, outBuffer->data());
diff --git a/media/libstagefright/filters/RSFilter.h b/media/libstagefright/filters/RSFilter.h
index c5b5074..3326284 100644
--- a/media/libstagefright/filters/RSFilter.h
+++ b/media/libstagefright/filters/RSFilter.h
@@ -35,7 +35,7 @@
     virtual void reset();
     virtual status_t setParameters(const sp<AMessage> &msg);
     virtual status_t processBuffers(
-            const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer);
+            const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer);
 
 protected:
     virtual ~RSFilter();
diff --git a/media/libstagefright/filters/SaturationFilter.cpp b/media/libstagefright/filters/SaturationFilter.cpp
index ba5f75a..0a1df05 100644
--- a/media/libstagefright/filters/SaturationFilter.cpp
+++ b/media/libstagefright/filters/SaturationFilter.cpp
@@ -19,7 +19,7 @@
 
 #include <utils/Log.h>
 
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 
@@ -88,7 +88,7 @@
 }
 
 status_t SaturationFilter::processBuffers(
-        const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) {
+        const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer) {
     mAllocIn->copy1DRangeFrom(0, mWidth * mHeight, srcBuffer->data());
     mScript->forEach_root(mAllocIn, mAllocOut);
     mAllocOut->copy1DRangeTo(0, mWidth * mHeight, outBuffer->data());
diff --git a/media/libstagefright/filters/SaturationFilter.h b/media/libstagefright/filters/SaturationFilter.h
index 0545021..317e469 100644
--- a/media/libstagefright/filters/SaturationFilter.h
+++ b/media/libstagefright/filters/SaturationFilter.h
@@ -33,7 +33,7 @@
     virtual void reset();
     virtual status_t setParameters(const sp<AMessage> &msg);
     virtual status_t processBuffers(
-            const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer);
+            const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer);
 
 protected:
     virtual ~SaturationFilter() {};
diff --git a/media/libstagefright/filters/SimpleFilter.h b/media/libstagefright/filters/SimpleFilter.h
index 4cd37ef..a3c2d76 100644
--- a/media/libstagefright/filters/SimpleFilter.h
+++ b/media/libstagefright/filters/SimpleFilter.h
@@ -21,11 +21,11 @@
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 
-struct ABuffer;
-struct AMessage;
-
 namespace android {
 
+struct AMessage;
+class MediaCodecBuffer;
+
 struct SimpleFilter : public RefBase {
 public:
     SimpleFilter() : mWidth(0), mHeight(0), mStride(0), mSliceHeight(0),
@@ -37,7 +37,7 @@
     virtual void reset() = 0;
     virtual status_t setParameters(const sp<AMessage> &msg) = 0;
     virtual status_t processBuffers(
-            const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) = 0;
+            const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer) = 0;
 
 protected:
     int32_t mWidth, mHeight;
diff --git a/media/libstagefright/filters/ZeroFilter.cpp b/media/libstagefright/filters/ZeroFilter.cpp
index 3f1243c..74b94b7 100644
--- a/media/libstagefright/filters/ZeroFilter.cpp
+++ b/media/libstagefright/filters/ZeroFilter.cpp
@@ -17,7 +17,7 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "ZeroFilter"
 
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 
@@ -38,7 +38,7 @@
 }
 
 status_t ZeroFilter::processBuffers(
-        const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) {
+        const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer) {
     // assuming identical input & output buffers, since we're a copy filter
     if (mInvertData) {
         uint32_t* src = (uint32_t*)srcBuffer->data();
diff --git a/media/libstagefright/filters/ZeroFilter.h b/media/libstagefright/filters/ZeroFilter.h
index bd34dfb..f941cc8 100644
--- a/media/libstagefright/filters/ZeroFilter.h
+++ b/media/libstagefright/filters/ZeroFilter.h
@@ -29,7 +29,7 @@
     virtual void reset() {};
     virtual status_t setParameters(const sp<AMessage> &msg);
     virtual status_t processBuffers(
-            const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer);
+            const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer);
 
 protected:
     virtual ~ZeroFilter() {};
diff --git a/media/libstagefright/foundation/ADebug.cpp b/media/libstagefright/foundation/ADebug.cpp
index 2c5f544..1a5b2a3 100644
--- a/media/libstagefright/foundation/ADebug.cpp
+++ b/media/libstagefright/foundation/ADebug.cpp
@@ -49,7 +49,7 @@
             ++current;
         }
         // check for :
-        char *colon = strchr(current, ':');
+        const char *colon = strchr(current, ':');
 
         // get level
         char *end;
diff --git a/media/libstagefright/foundation/ALooperRoster.cpp b/media/libstagefright/foundation/ALooperRoster.cpp
index 9ed53e7..8a7c3eb 100644
--- a/media/libstagefright/foundation/ALooperRoster.cpp
+++ b/media/libstagefright/foundation/ALooperRoster.cpp
@@ -34,7 +34,7 @@
 }
 
 ALooper::handler_id ALooperRoster::registerHandler(
-        const sp<ALooper> looper, const sp<AHandler> &handler) {
+        const sp<ALooper> &looper, const sp<AHandler> &handler) {
     Mutex::Autolock autoLock(mLock);
 
     if (handler->id() != 0) {
@@ -100,7 +100,7 @@
     }
 }
 
-static void makeFourCC(uint32_t fourcc, char *s) {
+static void makeFourCC(uint32_t fourcc, char *s, size_t bufsz) {
     s[0] = (fourcc >> 24) & 0xff;
     if (s[0]) {
         s[1] = (fourcc >> 16) & 0xff;
@@ -108,7 +108,7 @@
         s[3] = fourcc & 0xff;
         s[4] = 0;
     } else {
-        sprintf(s, "%u", fourcc);
+        snprintf(s, bufsz, "%u", fourcc);
     }
 }
 
@@ -146,7 +146,7 @@
                 if (verboseStats) {
                     for (size_t j = 0; j < handler->mMessages.size(); j++) {
                         char fourcc[15];
-                        makeFourCC(handler->mMessages.keyAt(j), fourcc);
+                        makeFourCC(handler->mMessages.keyAt(j), fourcc, sizeof(fourcc));
                         s.appendFormat("\n    %s: %u",
                                 fourcc,
                                 handler->mMessages.valueAt(j));
diff --git a/media/libstagefright/foundation/AMessage.cpp b/media/libstagefright/foundation/AMessage.cpp
index a4583d6..f55de64 100644
--- a/media/libstagefright/foundation/AMessage.cpp
+++ b/media/libstagefright/foundation/AMessage.cpp
@@ -17,11 +17,13 @@
 #define LOG_TAG "AMessage"
 //#define LOG_NDEBUG 0
 //#define DUMP_STATS
-#include <cutils/log.h>
+
+#include <ctype.h>
 
 #include "AMessage.h"
 
-#include <ctype.h>
+#include <binder/Parcel.h>
+#include <log/log.h>
 
 #include "AAtomizer.h"
 #include "ABuffer.h"
@@ -30,7 +32,6 @@
 #include "AHandler.h"
 #include "AString.h"
 
-#include <binder/Parcel.h>
 #include <media/stagefright/foundation/hexdump.h>
 
 namespace android {
@@ -239,6 +240,24 @@
     return false;
 }
 
+bool AMessage::findAsInt64(const char *name, int64_t *value) const {
+    size_t i = findItemIndex(name, strlen(name));
+    if (i < mNumItems) {
+        const Item *item = &mItems[i];
+        switch (item->mType) {
+            case kTypeInt64:
+                *value = item->u.int64Value;
+                return true;
+            case kTypeInt32:
+                *value = item->u.int32Value;
+                return true;
+            default:
+                return false;
+        }
+    }
+    return false;
+}
+
 bool AMessage::contains(const char *name) const {
     size_t i = findItemIndex(name, strlen(name));
     return i < mNumItems;
@@ -252,7 +271,8 @@
     item->u.FIELDNAME = value;                                          \
 }                                                                       \
                                                                         \
-bool AMessage::find##NAME(const char *name, TYPENAME *value) const {    \
+/* NOLINT added to avoid incorrect warning/fix from clang.tidy */       \
+bool AMessage::find##NAME(const char *name, TYPENAME *value) const {  /* NOLINT */ \
     const Item *item = findItem(name, kType##NAME);                     \
     if (item) {                                                         \
         *value = item->u.FIELDNAME;                                     \
diff --git a/media/libstagefright/foundation/ANetworkSession.cpp b/media/libstagefright/foundation/ANetworkSession.cpp
index 46314eb..f8b7b41 100644
--- a/media/libstagefright/foundation/ANetworkSession.cpp
+++ b/media/libstagefright/foundation/ANetworkSession.cpp
@@ -53,7 +53,7 @@
 static const int32_t kMaxUDPRetries = 200;
 
 struct ANetworkSession::NetworkThread : public Thread {
-    NetworkThread(ANetworkSession *session);
+    explicit NetworkThread(ANetworkSession *session);
 
 protected:
     virtual ~NetworkThread();
diff --git a/media/libstagefright/foundation/AString.cpp b/media/libstagefright/foundation/AString.cpp
index b167543..04fac19 100644
--- a/media/libstagefright/foundation/AString.cpp
+++ b/media/libstagefright/foundation/AString.cpp
@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+#define LOG_TAG "AString"
+#include <utils/Log.h>
+
 #include <ctype.h>
 #include <stdarg.h>
 #include <stdio.h>
@@ -40,14 +43,24 @@
     : mData(NULL),
       mSize(0),
       mAllocSize(1) {
-    setTo(s);
+    if (!s) {
+        ALOGW("ctor got NULL, using empty string instead");
+        clear();
+    } else {
+        setTo(s);
+    }
 }
 
 AString::AString(const char *s, size_t size)
     : mData(NULL),
       mSize(0),
       mAllocSize(1) {
-    setTo(s, size);
+    if (!s) {
+        ALOGW("ctor got NULL, using empty string instead");
+        clear();
+    } else {
+        setTo(s, size);
+    }
 }
 
 AString::AString(const String8 &from)
diff --git a/media/libstagefright/foundation/Android.bp b/media/libstagefright/foundation/Android.bp
new file mode 100644
index 0000000..9b2e7fa
--- /dev/null
+++ b/media/libstagefright/foundation/Android.bp
@@ -0,0 +1,58 @@
+cc_library_shared {
+    name: "libstagefright_foundation",
+
+    srcs: [
+        "AAtomizer.cpp",
+        "ABitReader.cpp",
+        "ABuffer.cpp",
+        "ADebug.cpp",
+        "AHandler.cpp",
+        "AHierarchicalStateMachine.cpp",
+        "ALooper.cpp",
+        "ALooperRoster.cpp",
+        "AMessage.cpp",
+        "ANetworkSession.cpp",
+        "AString.cpp",
+        "AStringUtils.cpp",
+        "AWakeLock.cpp",
+        "ColorUtils.cpp",
+        "MediaBuffer.cpp",
+        "MediaBufferGroup.cpp",
+        "MetaData.cpp",
+        "ParsedMessage.cpp",
+        "base64.cpp",
+        "hexdump.cpp",
+    ],
+
+    include_dirs: ["frameworks/av/include/media/stagefright/foundation"],
+
+    export_include_dirs: ["include"],
+
+    shared_libs: [
+        "libbinder",
+        "libutils",
+        "libui",
+        "libcutils",
+        "liblog",
+        "libpowermanager",
+    ],
+
+    export_shared_lib_headers: ["libbinder", "libui"],
+
+    cflags: [
+        "-Wno-multichar",
+        "-Werror",
+        "-Wall",
+    ],
+    clang: true,
+    sanitize: {
+        misc_undefined: [
+            "unsigned-integer-overflow",
+            "signed-integer-overflow",
+        ],
+        cfi: true,
+        diag: {
+          cfi: true,
+        },
+    },
+}
diff --git a/media/libstagefright/foundation/Android.mk b/media/libstagefright/foundation/Android.mk
deleted file mode 100644
index 3c3ed59..0000000
--- a/media/libstagefright/foundation/Android.mk
+++ /dev/null
@@ -1,44 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:=                 \
-    AAtomizer.cpp                 \
-    ABitReader.cpp                \
-    ABuffer.cpp                   \
-    ADebug.cpp                    \
-    AHandler.cpp                  \
-    AHierarchicalStateMachine.cpp \
-    ALooper.cpp                   \
-    ALooperRoster.cpp             \
-    AMessage.cpp                  \
-    ANetworkSession.cpp           \
-    AString.cpp                   \
-    AStringUtils.cpp              \
-    AWakeLock.cpp                 \
-    ColorUtils.cpp                \
-    MediaBuffer.cpp               \
-    MediaBufferGroup.cpp          \
-    MetaData.cpp                  \
-    ParsedMessage.cpp             \
-    base64.cpp                    \
-    hexdump.cpp
-
-LOCAL_C_INCLUDES:= \
-    frameworks/av/include/media/stagefright/foundation
-
-LOCAL_SHARED_LIBRARIES := \
-        libbinder         \
-        libutils          \
-        libcutils         \
-        liblog            \
-        libpowermanager
-
-LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
-
-LOCAL_MODULE:= libstagefright_foundation
-
-
-
-include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/foundation/ColorUtils.cpp b/media/libstagefright/foundation/ColorUtils.cpp
index d7439b2..88a8351 100644
--- a/media/libstagefright/foundation/ColorUtils.cpp
+++ b/media/libstagefright/foundation/ColorUtils.cpp
@@ -343,6 +343,23 @@
 }
 
 // static
+ColorAspects ColorUtils::unpackToColorAspects(uint32_t packed) {
+    ColorAspects aspects;
+    aspects.mRange        = (ColorAspects::Range)((packed >> 24) & 0xFF);
+    aspects.mPrimaries    = (ColorAspects::Primaries)((packed >> 16) & 0xFF);
+    aspects.mMatrixCoeffs = (ColorAspects::MatrixCoeffs)((packed >> 8) & 0xFF);
+    aspects.mTransfer     = (ColorAspects::Transfer)(packed & 0xFF);
+
+    return aspects;
+}
+
+// static
+uint32_t ColorUtils::packToU32(const ColorAspects &aspects) {
+    return (aspects.mRange << 24) | (aspects.mPrimaries << 16)
+            | (aspects.mMatrixCoeffs << 8) | aspects.mTransfer;
+}
+
+// static
 void ColorUtils::setDefaultCodecColorAspectsIfNeeded(
         ColorAspects &aspects, int32_t width, int32_t height) {
     ColorAspects::MatrixCoeffs coeffs;
diff --git a/media/libstagefright/foundation/MediaBufferGroup.cpp b/media/libstagefright/foundation/MediaBufferGroup.cpp
index 8e4d064..cb62d92 100644
--- a/media/libstagefright/foundation/MediaBufferGroup.cpp
+++ b/media/libstagefright/foundation/MediaBufferGroup.cpp
@@ -199,6 +199,7 @@
 }
 
 void MediaBufferGroup::signalBufferReturned(MediaBuffer *) {
+    Mutex::Autolock autoLock(mLock);
     mCondition.signal();
 }
 
diff --git a/media/libstagefright/foundation/hexdump.cpp b/media/libstagefright/foundation/hexdump.cpp
index a44d832..872c5f3 100644
--- a/media/libstagefright/foundation/hexdump.cpp
+++ b/media/libstagefright/foundation/hexdump.cpp
@@ -49,7 +49,7 @@
         appendIndent(&line, indent);
 
         char tmp[32];
-        sprintf(tmp, "%08lx:  ", (unsigned long)offset);
+        snprintf(tmp, sizeof(tmp), "%08lx:  ", (unsigned long)offset);
 
         line.append(tmp);
 
@@ -60,7 +60,7 @@
             if (offset + i >= size) {
                 line.append("   ");
             } else {
-                sprintf(tmp, "%02x ", data[offset + i]);
+                snprintf(tmp, sizeof(tmp), "%02x ", data[offset + i]);
                 line.append(tmp);
             }
         }
diff --git a/media/libstagefright/foundation/include b/media/libstagefright/foundation/include
new file mode 120000
index 0000000..3a1af68
--- /dev/null
+++ b/media/libstagefright/foundation/include
@@ -0,0 +1 @@
+../include/
\ No newline at end of file
diff --git a/media/libstagefright/foundation/tests/AData_test.cpp b/media/libstagefright/foundation/tests/AData_test.cpp
new file mode 100644
index 0000000..f014c25
--- /dev/null
+++ b/media/libstagefright/foundation/tests/AData_test.cpp
@@ -0,0 +1,981 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "AData_test"
+
+#include <gtest/gtest.h>
+#include <utils/RefBase.h>
+//#include <utils/StrongPointer.h>
+
+#include <media/stagefright/foundation/AData.h>
+#include <media/stagefright/foundation/ABuffer.h>
+
+namespace android {
+
+class ADataTest : public ::testing::Test {
+};
+
+// ============ AUnion
+
+struct Events {
+    int dtor;
+    int ctor_empty;
+    int ctor_copy;
+};
+
+struct EventCounter : public RefBase {
+    EventCounter(int *counter, int magic=1234) : mCounter(counter), mMagic(magic) { }
+    virtual ~EventCounter() { ++*mCounter; mMagic = 0; }
+    int magic() const { return mMagic; }
+private:
+    int *mCounter;
+    int mMagic;
+};
+
+struct DerivedCounter : public EventCounter {
+    DerivedCounter(int *counter, int magic=1234) : EventCounter(counter, magic) { }
+};
+
+TEST_F(ADataTest, AUnion_Test) {
+    AUnion<int, const char *, char> u;
+    u.emplace<int>(4);
+    u.del<int>();
+    EXPECT_EQ(4, u.get<int>()); // verify that del<> is a no-op for trivial types, such as int.
+                                // specifically, verify that it does not clear the objet memory
+
+    u.emplace<const char *>("hello");
+    EXPECT_STREQ("hello", u.get<const char *>());
+    u.del<const char *>();
+
+    // u.del<char *>();
+    // u.emplace<const int>(4);
+    u.emplace<void>();
+    u.del<void>();
+
+    u.emplace<int>(~0);
+    u.del<int>();
+    EXPECT_EQ(~0, u.get<int>());
+    u.emplace<char>(0x15);
+    // verify that rest of memory after char is cleared upon construction
+    EXPECT_EQ(0, memcmp((char *)(&u) + sizeof(char), "\0\0\0", 3));
+    EXPECT_EQ(0x15, u.get<char>());
+    u.del<char>();
+
+    AUnion<EventCounter, EventCounter *> d;
+    int destructions = 0;
+
+    d.emplace<EventCounter>(&destructions);
+    d.del<EventCounter>();
+    EXPECT_EQ(1, destructions);
+
+    EventCounter *ctr = new EventCounter(&destructions);
+    d.emplace<EventCounter *>(ctr);
+    d.del<EventCounter *>();
+    EXPECT_EQ(1, destructions);
+
+    delete ctr;
+    EXPECT_EQ(2, destructions);
+
+    AUnion<std::shared_ptr<EventCounter>, std::unique_ptr<EventCounter>> md;
+    md.emplace<std::shared_ptr<EventCounter>>(new EventCounter(&destructions));
+    std::shared_ptr<EventCounter> copy(md.get<std::shared_ptr<EventCounter>>());
+    std::weak_ptr<EventCounter> weak(copy);
+    EXPECT_EQ(2, destructions);
+
+    copy.reset();
+    EXPECT_EQ(2, destructions);
+    md.del<std::shared_ptr<EventCounter>>();
+    EXPECT_EQ(3, destructions);
+    EXPECT_TRUE(weak.expired());
+
+    md.emplace<std::unique_ptr<EventCounter>>(new EventCounter(&destructions));
+    EXPECT_EQ(3, destructions);
+
+    std::unique_ptr<EventCounter> unique = std::move(md.get<std::unique_ptr<EventCounter>>());
+    EXPECT_EQ(3, destructions);
+    EXPECT_FALSE((bool)md.get<std::unique_ptr<EventCounter>>());
+
+    md.del<std::unique_ptr<EventCounter>>();
+    EXPECT_EQ(3, destructions);
+    md.emplace<std::unique_ptr<EventCounter>>(std::move(unique));
+    EXPECT_TRUE((bool)md.get<std::unique_ptr<EventCounter>>());
+    EXPECT_EQ(3, destructions);
+
+    md.del<std::unique_ptr<EventCounter>>();
+    EXPECT_EQ(4, destructions);
+}
+
+TEST_F(ADataTest, AData_StaticTest) {
+    using namespace std;
+
+    static_assert(is_copy_assignable<shared_ptr<EventCounter>>::value, "");
+    static_assert(is_copy_constructible<shared_ptr<EventCounter>>::value, "");
+    static_assert(is_default_constructible<shared_ptr<EventCounter>>::value, "");
+
+    static_assert(is_copy_assignable<weak_ptr<DerivedCounter>>::value, "");
+    static_assert(is_copy_constructible<weak_ptr<DerivedCounter>>::value, "");
+    static_assert(is_default_constructible<weak_ptr<DerivedCounter>>::value, "");
+
+    static_assert(!is_copy_assignable<unique_ptr<DerivedCounter>>::value, "");
+    static_assert(!is_copy_constructible<unique_ptr<DerivedCounter>>::value, "");
+    static_assert(is_default_constructible<unique_ptr<DerivedCounter>>::value, "");
+
+    static_assert(is_copy_assignable<sp<EventCounter>>::value, "");
+    static_assert(is_copy_constructible<sp<EventCounter>>::value, "");
+    static_assert(is_default_constructible<sp<EventCounter>>::value, "");
+
+    static_assert(is_copy_assignable<wp<EventCounter>>::value, "");
+    static_assert(is_copy_constructible<wp<EventCounter>>::value, "");
+    static_assert(is_default_constructible<wp<EventCounter>>::value, "");
+
+    static_assert(is_convertible<shared_ptr<DerivedCounter>, shared_ptr<EventCounter>>::value, "");
+    static_assert(!is_convertible<shared_ptr<EventCounter>, shared_ptr<DerivedCounter>>::value, "");
+
+    static_assert(is_convertible<unique_ptr<DerivedCounter>, unique_ptr<EventCounter>>::value, "");
+    static_assert(!is_convertible<unique_ptr<EventCounter>, unique_ptr<DerivedCounter>>::value, "");
+
+    static_assert(is_convertible<unique_ptr<DerivedCounter>, shared_ptr<EventCounter>>::value, "");
+    static_assert(!is_convertible<shared_ptr<DerivedCounter>, unique_ptr<EventCounter>>::value, "");
+
+    static_assert(is_convertible<weak_ptr<DerivedCounter>, weak_ptr<EventCounter>>::value, "");
+    static_assert(!is_convertible<weak_ptr<EventCounter>, weak_ptr<DerivedCounter>>::value, "");
+
+    static_assert(is_convertible<shared_ptr<DerivedCounter>, weak_ptr<EventCounter>>::value, "");
+    static_assert(!is_convertible<weak_ptr<DerivedCounter>, shared_ptr<EventCounter>>::value, "");
+
+    static_assert(is_convertible<sp<EventCounter>, sp<RefBase>>::value, "");
+    static_assert(is_convertible<sp<RefBase>, sp<EventCounter>>::value, "YES");
+
+    static_assert(is_convertible<wp<EventCounter>, wp<RefBase>>::value, "");
+    static_assert(is_convertible<wp<RefBase>, wp<EventCounter>>::value, "YES");
+
+    static_assert(is_convertible<sp<EventCounter>, wp<RefBase>>::value, "");
+    static_assert(!is_convertible<wp<EventCounter>, sp<RefBase>>::value, "");
+}
+
+TEST_F(ADataTest, AData_SampleTest) {
+    AData<int, float>::Basic data;
+    int i = 1;
+    float f = 7.0f;
+
+    data.set(5);
+    EXPECT_TRUE(data.find(&i));
+    EXPECT_FALSE(data.find(&f));
+    EXPECT_EQ(i, 5);
+
+    data.set(6.0f);
+    EXPECT_FALSE(data.find(&i));
+    EXPECT_TRUE(data.find(&f));
+    EXPECT_EQ(f, 6.0f);
+
+    AData<int, sp<RefBase>>::RelaxedBasic objdata; // relaxed type support
+    sp<ABuffer> buf = new ABuffer(16), buf2;
+    sp<RefBase> obj;
+
+    objdata.set(buf);
+    EXPECT_TRUE(objdata.find(&buf2));
+    EXPECT_EQ(buf, buf2);
+    EXPECT_FALSE(objdata.find(&i));
+    EXPECT_TRUE(objdata.find(&obj));
+    EXPECT_TRUE(obj == buf);
+
+    obj = buf;
+    objdata.set(obj); // storing as sp<RefBase>
+    EXPECT_FALSE(objdata.find(&buf2));  // not stored as ABuffer(!)
+    EXPECT_TRUE(objdata.find(&obj));
+}
+
+struct SampleTypeFlagger {
+    typedef unsigned type;
+    enum Flags : type {
+        kEmpty = 100,
+        kInt,
+        kConstCharPtr,
+        kEventCounter,
+        kEventCounterPointer,
+        kEventCounterSharedPointer,
+        kEventCounterUniquePointer,
+        kEventCounterWeakPointer,
+        kEventCounterSP,
+        kEventCounterWP,
+    };
+    constexpr static type mask = ~Flags(0);
+    constexpr static type flagFor(void*) { return kEmpty; }
+    constexpr static type flagFor(int*) { return kInt; }
+    constexpr static type flagFor(const char**) { return kConstCharPtr; }
+    constexpr static type flagFor(EventCounter*) { return kEventCounter; }
+    constexpr static type flagFor(EventCounter**) { return kEventCounterPointer; }
+    constexpr static
+    type flagFor(std::shared_ptr<EventCounter>*) { return kEventCounterSharedPointer; }
+    constexpr static
+    type flagFor(std::unique_ptr<EventCounter>*) { return kEventCounterUniquePointer; }
+    constexpr static type flagFor(std::weak_ptr<EventCounter>*) { return kEventCounterWeakPointer; }
+    constexpr static type flagFor(sp<EventCounter>*) { return kEventCounterSP; }
+    constexpr static type flagFor(wp<EventCounter>*) { return kEventCounterWP; }
+    constexpr static bool canDeleteAs(type object, type del) { return del == object; }
+    template <typename T> struct store { typedef T as_type; };
+};
+
+TEST_F(ADataTest, AData_SimpleTest) {
+    int _int = 0;
+    const char *_constCharPtr = NULL;
+    AData<int, const char *>::Custom<SampleTypeFlagger> u;
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find<int>(&_int));
+    EXPECT_FALSE(u.find<const char *>(&_constCharPtr));
+
+    EXPECT_TRUE(u.set<int>(4));
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.find<int>(&_int));
+    EXPECT_EQ(4, _int);
+    EXPECT_FALSE(u.find<const char *>(&_constCharPtr));
+    EXPECT_EQ(NULL, _constCharPtr);
+
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find<int>(&_int));
+    EXPECT_FALSE(u.find<const char *>(&_constCharPtr));
+
+    EXPECT_TRUE(u.set<int>(5));
+    EXPECT_TRUE(u.set<int>(6));
+    EXPECT_TRUE(u.find<int>(&_int));
+    EXPECT_EQ(6, _int);
+
+    EXPECT_TRUE(u.set<const char *>("hello"));
+    EXPECT_TRUE(u.used());
+    EXPECT_FALSE(u.find<int>(&_int));
+    EXPECT_TRUE(u.find<const char *>(&_constCharPtr));
+    EXPECT_STREQ("hello", _constCharPtr);
+
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find<int>(&_int));
+    EXPECT_FALSE(u.find<const char *>(&_constCharPtr));
+
+    EXPECT_TRUE(u.set<const char *>("world"));
+    EXPECT_TRUE(u.set<const char *>("!!"));
+    EXPECT_TRUE(u.used());
+    EXPECT_FALSE(u.find<int>(&_int));
+    EXPECT_TRUE(u.find<const char *>(&_constCharPtr));
+    EXPECT_STREQ("!!", _constCharPtr);
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_TRUE(u.find(&_constCharPtr));
+}
+
+void set(std::unique_ptr<int> &dst, std::unique_ptr<int> &&src) {
+    dst = std::move(src);
+}
+
+void set(std::unique_ptr<int> &dst, std::unique_ptr<int> &src) {
+    dst = std::move(src);
+}
+
+TEST_F(ADataTest, AData_CopyMoveTest) {
+    int destructions = 0;
+    int _int = 0;
+    std::shared_ptr<EventCounter> _shared;
+    std::unique_ptr<EventCounter> _unique;
+    std::weak_ptr<EventCounter> _weak;
+    const std::shared_ptr<EventCounter> _constShared(new EventCounter(&destructions));
+    const std::unique_ptr<EventCounter> _constUnique = nullptr;
+
+    AData<int, std::weak_ptr<EventCounter>, std::shared_ptr<EventCounter>,
+            std::unique_ptr<EventCounter>>::Basic u;
+
+    // test that data is empty
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+
+    // test that integer can be stored and read
+    EXPECT_TRUE(u.set<int>(1));
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.find(&_int));
+    EXPECT_EQ(1, _int);
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+
+    // test that movable type (unique_ptr) can be moved in and read out, and it moves
+    _unique = std::unique_ptr<EventCounter>(new EventCounter(&destructions, 123));
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_TRUE((bool)_unique);
+    if (_unique) {
+        EXPECT_EQ(123, _unique->magic());
+    }
+
+    // the unique value should have been removed but still accessible as nullptr
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_EQ(1, destructions);
+
+    // test that movable-only type (unique_ptr) can be stored without moving (and is still
+    // moved)
+    _unique = std::unique_ptr<EventCounter>(new EventCounter(&destructions, 321));
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.set(std::unique_ptr<EventCounter>(new EventCounter(&destructions, 1234))));
+    EXPECT_EQ(2, destructions);
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_TRUE((bool)_unique);
+    if (_unique) {
+        EXPECT_EQ(1234, _unique->magic());
+    }
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_EQ(2, destructions);
+    EXPECT_TRUE(u.clear());
+    EXPECT_EQ(3, destructions);
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+
+    // u.set(_constUnique);
+
+    // test that copiable & movable type (shared_ptr) is copied unless explicitly moved.
+    _shared = std::make_shared<EventCounter>(&destructions, 234);
+    EXPECT_EQ(1L, _shared.use_count());
+    EXPECT_TRUE(u.set(_shared));
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    EXPECT_EQ(2L, _shared.use_count());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(2L, _shared.use_count());
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    // explicitly move in shared_ptr
+    EXPECT_TRUE(u.set(std::move(_shared)));
+    EXPECT_EQ(0, _shared.use_count()); // shared should be nullptr
+    EXPECT_FALSE((bool)_shared);
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(2L, _shared.use_count()); // now both u and _shared contains the object
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(2L, _shared.use_count()); // still both u and _shared contains the object
+
+    EXPECT_TRUE(u.clear());
+    EXPECT_TRUE(_shared.unique()); // now only _shared contains the object
+
+    EXPECT_TRUE(u.set(_constShared));
+    EXPECT_EQ(2L, _constShared.use_count()); // even though it is const, we can add a use count
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(3L, _shared.use_count()); // now u, _shared and _constShared contains the const object
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(1234, _shared->magic());
+    }
+
+    // test that weak pointer can be copied in (support for moving is from C++14 only)
+    _weak = _shared;
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_TRUE(u.set(_weak));
+
+    _weak.reset();
+    EXPECT_EQ(_weak.use_count(), 0);
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_EQ(_weak.lock(), _shared);
+
+    // we can remove a weak pointer multiple times
+    _weak.reset();
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_EQ(_weak.lock(), _shared);
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+};
+
+TEST_F(ADataTest, AData_RelaxedCopyMoveTest) {
+    int destructions = 0;
+    int _int = 0;
+    std::shared_ptr<DerivedCounter> _shared;
+    std::unique_ptr<DerivedCounter> _unique, _unique2;
+    std::weak_ptr<DerivedCounter> _weak;
+    std::shared_ptr<EventCounter> _shared_base;
+    std::unique_ptr<EventCounter> _unique_base;
+    std::weak_ptr<EventCounter> _weak_base;
+    const std::shared_ptr<DerivedCounter> _constShared(new DerivedCounter(&destructions));
+    const std::unique_ptr<DerivedCounter> _constUnique = nullptr;
+
+    AData<int, std::unique_ptr<EventCounter>, std::shared_ptr<EventCounter>,
+            std::weak_ptr<EventCounter>>::RelaxedBasic u;
+
+    // test that data is empty
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that integer can be stored and read
+    EXPECT_TRUE(u.set<int>(1));
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.find(&_int));
+    EXPECT_EQ(1, _int);
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that movable type (unique_ptr) can be moved in and read out, and it moves
+    _unique = std::unique_ptr<DerivedCounter>(new DerivedCounter(&destructions, 123));
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_TRUE((bool)_unique);
+    if (_unique) {
+        EXPECT_EQ(123, _unique->magic());
+    }
+
+    // the unique value should have been removed but still accessible as nullptr
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_EQ(1, destructions);
+
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_TRUE(u.remove(&_unique_base));
+    EXPECT_FALSE((bool)_unique_base);
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that movable-only type (unique_ptr) can be stored without moving (and is still
+    // moved)
+    _unique = std::unique_ptr<DerivedCounter>(new DerivedCounter(&destructions, 321));
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.set(std::unique_ptr<DerivedCounter>(new DerivedCounter(&destructions, 1234))));
+    EXPECT_EQ(2, destructions);
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_TRUE((bool)_unique);
+    if (_unique) {
+        EXPECT_EQ(1234, _unique->magic());
+    }
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_EQ(2, destructions);
+    EXPECT_TRUE(u.clear());
+    EXPECT_EQ(3, destructions);
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that unique pointer can be set and removed as base type (but removed as derived only
+    // if it was set as derived type)
+    _unique = std::unique_ptr<DerivedCounter>(new DerivedCounter(&destructions, 321));
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.remove(&_unique_base));
+    EXPECT_TRUE((bool)_unique_base);
+    if (_unique_base) {
+        EXPECT_EQ(321, _unique_base->magic());
+    }
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_FALSE((bool)_unique);
+
+    EXPECT_TRUE(u.set(std::move(_unique_base)));
+    EXPECT_FALSE((bool)_unique_base);
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.remove(&_unique_base));
+    EXPECT_TRUE((bool)_unique_base);
+    if (_unique_base) {
+        EXPECT_EQ(321, _unique_base->magic());
+    }
+
+    EXPECT_EQ(3, destructions);
+    EXPECT_TRUE(u.remove(&_unique_base));
+    EXPECT_EQ(4, destructions);
+    EXPECT_FALSE((bool)_unique_base);
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // u.set(_constUnique);
+
+    // test that copiable & movable type (shared_ptr) is copied unless explicitly moved.
+    _shared = std::make_shared<DerivedCounter>(&destructions, 234);
+    EXPECT_EQ(1L, _shared.use_count());
+    EXPECT_TRUE(u.set(_shared));
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    EXPECT_EQ(2L, _shared.use_count());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+    EXPECT_EQ(2L, _shared.use_count());
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    // explicitly move in shared_ptr
+    EXPECT_TRUE(u.set(std::move(_shared)));
+    EXPECT_EQ(0, _shared.use_count()); // shared should be nullptr
+    EXPECT_FALSE((bool)_shared);
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(2L, _shared.use_count()); // now both u and _shared contains the object
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(2L, _shared.use_count()); // still both u and _shared contains the object
+
+    EXPECT_TRUE(u.clear());
+    EXPECT_TRUE(_shared.unique()); // now only _shared contains the object
+
+    EXPECT_TRUE(u.set(_constShared));
+    EXPECT_EQ(2L, _constShared.use_count()); // even though it is const, we can add a use count
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(3L, _shared.use_count()); // now u, _shared and _constShared contains the const object
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(1234, _shared->magic());
+    }
+
+    // test that shared pointer can be set and removed as base type (but removed as derived only
+    // if it was set as derived type)
+    EXPECT_TRUE(u.find(&_shared_base));
+    EXPECT_TRUE((bool)_shared_base);
+    if (_shared_base) {
+        EXPECT_EQ(1234, _shared_base->magic());
+    }
+    EXPECT_EQ(4L, _shared.use_count()); // now u, _shared, _constShared and _shared_base contains
+                                        // the const object
+    _shared.reset();
+    EXPECT_EQ(3L, _shared_base.use_count()); // now u, _constShared and _shared_base contains it
+    EXPECT_TRUE(u.clear());
+    EXPECT_EQ(2L, _shared_base.use_count()); // now _constShared and _shared_base contains it
+
+    EXPECT_TRUE(u.set(_shared_base));        // now u_ also contains it as base class
+    EXPECT_EQ(3L, _shared_base.use_count());
+    EXPECT_FALSE(u.find(&_shared)); // cannot get it as derived type
+    EXPECT_FALSE((bool)_shared);
+    _shared_base.reset();
+    EXPECT_TRUE(u.find(&_shared_base)); // can still get it as base type
+    EXPECT_TRUE((bool)_shared_base);
+    if (_shared_base) {
+        EXPECT_EQ(1234, _shared_base->magic());
+    }
+    _shared = std::static_pointer_cast<DerivedCounter>(_shared_base);
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that weak pointer can be copied in (support for moving is from C++14 only)
+    _weak = _shared;
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_TRUE(u.set(_weak));
+
+    _weak.reset();
+    EXPECT_EQ(_weak.use_count(), 0);
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_EQ(_weak.lock(), _shared);
+
+    // we can remove a weak pointer multiple times
+    _weak.reset();
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_EQ(_weak.lock(), _shared);
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that weak pointer can be set and removed as base type (but removed as derived only
+    // if it was set as derived type)
+    _weak = _shared;
+    EXPECT_TRUE(u.set(_weak));
+    EXPECT_TRUE(u.find(&_weak_base));
+    EXPECT_FALSE(_weak_base.expired());
+    if (!_weak_base.expired()) {
+        EXPECT_EQ(1234, _weak_base.lock()->magic());
+    }
+    // now _shared, _constShared and _shared_base contains the const object
+    EXPECT_EQ(3L, _weak.use_count());
+    _weak.reset();
+    EXPECT_EQ(3L, _weak_base.use_count()); // _weak did not hold a reference
+    _shared.reset();
+    EXPECT_EQ(2L, _weak_base.use_count()); // now u, _constShared and _shared_base contains it
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    EXPECT_TRUE(u.set(_weak_base)); // now u_ also contains it as base class
+    EXPECT_FALSE(u.find(&_weak));   // cannot get it as derived type
+    EXPECT_TRUE(_weak.expired());
+    _weak_base.reset();
+    EXPECT_TRUE(u.find(&_weak_base)); // can still get it as base type
+    EXPECT_FALSE(_weak_base.expired());
+    if (!_weak_base.expired()) {
+        EXPECT_EQ(1234, _weak_base.lock()->magic());
+    }
+};
+
+TEST_F(ADataTest, AData_AndroidSpTest) {
+    int destructions = 0;
+    int _int = 0;
+    sp<EventCounter> _shared;
+    wp<EventCounter> _weak;
+    const sp<EventCounter> _constShared(new EventCounter(&destructions));
+
+    AData<int, sp<EventCounter>, wp<EventCounter>>::Strict<uint8_t> u;
+
+    // test that data is empty
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+
+    // test that integer can be stored and read
+    EXPECT_TRUE(u.set<int>(1));
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.find(&_int));
+    EXPECT_EQ(1, _int);
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+
+    // test that copiable & movable type (shared_ptr) is copied unless explicitly moved.
+    _shared = new EventCounter(&destructions, 234);
+    _weak = _shared; // used for tracking #234
+
+    EXPECT_TRUE(u.set(_shared));
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    _shared.clear();
+    EXPECT_EQ(NULL, _shared.get());
+    EXPECT_NE(nullptr, _weak.promote().get()); // u still holds object
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.find(&_shared)); // now u and _shared both hold object
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    // verify the find did not move out object
+    _shared.clear();
+    EXPECT_EQ(NULL, _shared.get());
+    EXPECT_NE(nullptr, _weak.promote().get()); // u still holds object
+    EXPECT_TRUE(u.find(&_shared)); // now u and _shared both hold object
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    // verify that we can set object multiple times
+    EXPECT_TRUE(u.set(_shared));
+
+    // explicitly move in sp
+    EXPECT_TRUE(u.set(std::move(_shared)));
+    EXPECT_FALSE((bool)_shared.get()); // android also clears sp<> on move...
+    EXPECT_TRUE(u.find(&_shared)); // still can get it back
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_weak));
+
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.clear()); // now only _shared contains the object
+    EXPECT_FALSE(u.used());
+
+    // we still hold a copy
+    EXPECT_TRUE((bool)_shared.get());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared)); // _shared still contains the object
+
+    EXPECT_TRUE(u.set(_constShared));
+    EXPECT_TRUE(u.find(&_shared)); // now _shared contains _constShared
+    EXPECT_EQ(NULL, _weak.promote().get()); // original _shared is now lost
+
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(1234, _shared->magic());
+    }
+    EXPECT_TRUE(u.clear());
+
+    // test that wp can be copied in
+    _weak = _shared;
+    EXPECT_TRUE(u.set(_weak));
+
+    _weak.clear();
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.promote(), _shared);
+
+    // we can remove a weak pointer multiple times
+    _weak.clear();
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.promote(), _shared);
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+};
+
+TEST_F(ADataTest, AData_RelaxedAndroidSpTest) {
+    int destructions = 0;
+    int _int = 0;
+    sp<EventCounter> _shared;
+    wp<EventCounter> _weak;
+    sp<RefBase> _shared_base;
+    wp<RefBase> _weak_base;
+    const sp<EventCounter> _constShared(new EventCounter(&destructions));
+
+    AData<int, sp<RefBase>, wp<RefBase>>::Relaxed<uint16_t> u;
+
+    // test that data is empty
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that integer can be stored and read
+    EXPECT_TRUE(u.set<int>(1));
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.find(&_int));
+    EXPECT_EQ(1, _int);
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that copiable & movable type (shared_ptr) is copied unless explicitly moved.
+    _shared = new EventCounter(&destructions, 234);
+    _weak = _shared; // used for tracking #234
+
+    EXPECT_TRUE(u.set(_shared));
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    _shared.clear();
+    EXPECT_EQ(NULL, _shared.get());
+    EXPECT_NE(nullptr, _weak.promote().get()); // u still holds object
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_TRUE(u.find(&_shared)); // now u and _shared both hold object
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    // verify the find did not move out object
+    _shared.clear();
+    EXPECT_EQ(NULL, _shared.get());
+    EXPECT_NE(nullptr, _weak.promote().get()); // u still holds object
+    EXPECT_TRUE(u.find(&_shared)); // now u and _shared both hold object
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    // verify that we can set object multiple times
+    EXPECT_TRUE(u.set(_shared));
+
+    // explicitly move in sp
+    EXPECT_TRUE(u.set(std::move(_shared)));
+    EXPECT_FALSE((bool)_shared.get()); // android also clears sp<> on move...
+    EXPECT_TRUE(u.find(&_shared)); // still can get it back
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.clear()); // now only _shared contains the object
+    EXPECT_FALSE(u.used());
+
+    // we still hold a copy
+    EXPECT_TRUE((bool)_shared.get());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared)); // _shared still contains the object
+
+    EXPECT_TRUE(u.set(_constShared));
+    EXPECT_TRUE(u.find(&_shared)); // now _shared contains _constShared
+    EXPECT_EQ(NULL, _weak.promote().get()); // original _shared is now lost
+
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(1234, _shared->magic());
+    }
+    EXPECT_TRUE(u.clear());
+
+    // test that shared pointer can be set and removed as base type (but removed as derived only
+    // if it was set as derived type)
+    EXPECT_TRUE(u.set(_constShared));
+    EXPECT_TRUE(u.find(&_shared_base));
+    EXPECT_TRUE((bool)_shared_base.get());
+    if (_shared_base.get()) {
+        EXPECT_EQ(1234, static_cast<EventCounter*>(_shared_base.get())->magic());
+    }
+    _shared.clear();
+    EXPECT_TRUE(u.clear());
+    EXPECT_TRUE((bool)_shared_base.get());
+    if (_shared_base.get()) {
+        EXPECT_EQ(1234, static_cast<EventCounter*>(_shared_base.get())->magic());
+    }
+
+    EXPECT_TRUE(u.set(_shared_base)); // now u contains it as base class
+    EXPECT_TRUE((bool)_shared_base.get());
+    EXPECT_FALSE(u.find(&_shared)); // cannot get it as derived type
+    EXPECT_FALSE((bool)_shared.get());
+    _shared_base.clear();
+    EXPECT_TRUE(u.find(&_shared_base)); // can still get it as base type
+    EXPECT_TRUE((bool)_shared_base.get());
+    if (_shared_base.get()) {
+        EXPECT_EQ(1234, static_cast<EventCounter*>(_shared_base.get())->magic());
+    }
+    _shared = static_cast<DerivedCounter*>(_shared_base.get());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that wp can be copied in
+    _weak = _shared;
+    EXPECT_TRUE(u.set(_weak));
+
+    _weak.clear();
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.promote(), _shared);
+
+    // we can remove a weak pointer multiple times
+    _weak.clear();
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.promote(), _shared);
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that weak pointer can be set and removed as base type (but removed as derived only
+    // if it was set as derived type)
+    _weak = _shared;
+    EXPECT_TRUE(u.set(_weak));
+    EXPECT_TRUE(u.find(&_weak_base));
+    EXPECT_TRUE(_weak_base.promote().get() == _shared.get());
+
+    _weak.clear();
+    _shared.clear();
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    EXPECT_TRUE(u.set(_weak_base)); // now u_ also contains it as base class
+    EXPECT_FALSE(u.find(&_weak));   // cannot get it as derived type
+    EXPECT_FALSE(_weak.promote().get());
+    _weak_base.clear();
+    EXPECT_TRUE(u.find(&_weak_base)); // can still get it as base type
+    EXPECT_TRUE(_weak_base.promote().get());
+    if (_weak_base.promote().get()) {
+        EXPECT_EQ(1234, static_cast<EventCounter*>(_weak_base.promote().get())->magic());
+    }
+};
+
+} // namespace android
diff --git a/media/libstagefright/foundation/tests/Android.mk b/media/libstagefright/foundation/tests/Android.mk
new file mode 100644
index 0000000..d741c6f
--- /dev/null
+++ b/media/libstagefright/foundation/tests/Android.mk
@@ -0,0 +1,35 @@
+# Build the unit tests.
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+
+LOCAL_MODULE := sf_foundation_test
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_SRC_FILES := \
+	AData_test.cpp \
+	Flagged_test.cpp \
+	TypeTraits_test.cpp \
+	Utils_test.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+	libstagefright_foundation \
+	libutils \
+
+LOCAL_C_INCLUDES := \
+	frameworks/av/include \
+
+LOCAL_CFLAGS += -Werror -Wall
+LOCAL_CLANG := true
+
+include $(BUILD_NATIVE_TEST)
+
+# Include subdirectory makefiles
+# ============================================================
+
+# If we're building with ONE_SHOT_MAKEFILE (mm, mmm), then what the framework
+# team really wants is to build the stuff defined by this makefile.
+ifeq (,$(ONE_SHOT_MAKEFILE))
+include $(call first-makefiles-under,$(LOCAL_PATH))
+endif
diff --git a/media/libstagefright/foundation/tests/Flagged_test.cpp b/media/libstagefright/foundation/tests/Flagged_test.cpp
new file mode 100644
index 0000000..3c90699
--- /dev/null
+++ b/media/libstagefright/foundation/tests/Flagged_test.cpp
@@ -0,0 +1,639 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Flagged_test"
+
+#include <gtest/gtest.h>
+
+#include <media/stagefright/foundation/Flagged.h>
+
+namespace android {
+
+/**
+ * Helper template that can be used to print values in static_assert error messages.
+ *
+ * Use integers here.
+ */
+template<bool, int ...N>
+struct _print_as_warning { };
+
+template<int ...N>
+struct _print_as_warning<true, N...> : std::true_type { };
+
+#define static_assert_equals(a, b, msg) \
+static_assert(_print_as_warning<(a) == (b), a, b>::value, msg)
+
+class FlaggedTest : public ::testing::Test {
+protected:
+    // empty structs
+    struct A0 { };
+    struct A1 { };
+    struct A_A0 : public A0 { };
+
+    // simple struct
+    struct BB {
+        int32_t i;
+        uint32_t u;
+    };
+
+    // struct inheriting from A0
+    struct BB_A0 : public A0 {
+        int32_t i;
+        uint32_t u;
+    };
+
+    // struct inheriting from struct inheriting A0
+    struct BB_AA0 : public A_A0 {
+        int32_t i;
+        uint32_t u;
+    };
+
+    // struct that wraps
+    struct WBBA0 {
+        BB_A0 b;
+    };
+
+    struct WBBA0_A1 : public A1 {
+        BB_A0 b;
+    };
+
+    struct WBBA0_A0 : public A0 {
+        BB_A0 b;
+    };
+
+    struct WBB_A0 : public A0 {
+        BB b;
+    };
+
+    struct WBBA0_AA0 : public A_A0 {
+        BB_A0 b;
+    };
+
+    struct WBBAA0_A0 : public A0 {
+        BB_AA0 b;
+    };
+
+    struct WWBBA0_A0 : public A0 {
+        WBBA0 b;
+    };
+};
+
+/**
+ * This test is here to confirm the handling of wrapping classes that inherit from an interface
+ * while also inheriting from that same interface. While we no longer use this construct, we want
+ * to track if this defect is ever fixed.
+ */
+TEST_F(FlaggedTest, StaticSanityTests) {
+    static_assert(sizeof(A0) == 1, "");
+    static_assert(sizeof(A1) == 1, "");
+    static_assert(sizeof(A_A0) == 1, "");
+
+    static constexpr size_t size = sizeof(BB); // original [pair]
+
+    // inheriting from A0 does not increase size
+    static_assert(sizeof(BB_A0) == size, ""); // [pair]:A0
+    static_assert(sizeof(BB_AA0) == size, ""); // [pair]:[:A0]
+
+     // wrapping a class that inherits from A0 does not increase size
+    static_assert(sizeof(WBBA0) == size, ""); // [ [pair]:[:A0] ]
+
+    // wrapping a class that inherits from A0 while also inheriting from A1 does not increase size
+    static_assert(sizeof(WBBA0_A1) == size, ""); // [ [pair]:A0 ]:A1
+
+    // wrapping a class that inherits from A0 while also inheriting from A0 DOES increase size
+    EXPECT_GT(sizeof(WBBA0_A0), size); // [ [pair]:A0 ]:A0
+
+    // wrapping a class that does not inherit from A0 while inheriting from A0 does not increase
+    // size
+    static_assert(sizeof(WBB_A0) == size, ""); // [[pair]]:A0
+
+    // wrapping a class that inherits from A0 while also inheriting from a class that inherits
+    // from A0 does increase size
+    EXPECT_GT(sizeof(WBBA0_AA0), size); // [ [pair]:A0 ]:[:A0]
+
+    // wrapping a class that indirectly inherits from A0 while also inheriting from A0 does
+    // increase size
+    EXPECT_GT(sizeof(WBBAA0_A0), size); // [ [pair]:[:A0] ]:A0
+
+    // wrapping a class that inherits from A0 while also inheriting A0 does increase size
+    EXPECT_GT(sizeof(WWBBA0_A0), size); //  [ [pair]:A0 ]:A0
+}
+
+enum FLAG : int32_t {
+    kMask0 = 0x0FF,
+    kFlag0_A = 0x0AA,
+    kFlag0_B = 0x0BB,
+    kFlag0_C = 0x0CC,
+    kMask1 = 0xFF0,
+    kFlag1_A = 0xAA0,
+    kFlag1_B = 0xBB0,
+    kFlag1_C = 0xCC0,
+    kMaskCommon = 0x0F0,
+};
+
+TEST_F(FlaggedTest, BasicExample) {
+    enum SafeFlags : uint32_t {
+      kUnsafe,
+      kSafe,
+      kSafeMask = _Flagged_helper::minMask(kSafe),
+    };
+    typedef Flagged<int32_t, SafeFlags, kSafeMask> safeInt32;
+
+    safeInt32 a(kUnsafe);
+    a.setFlags(kSafe);
+    a.get() = 15;
+    EXPECT_EQ(a.flags(), kSafe);
+    EXPECT_EQ(a.get(), 15);
+
+    enum OriginFlags : uint32_t {
+      kUnknown,
+      kConst,
+      kCalculated,
+      kComponent,
+      kApplication,
+      kFile,
+      kBinder,
+      kOriginMask = _Flagged_helper::minMask(kBinder),
+    };
+    typedef Flagged<safeInt32, OriginFlags, kOriginMask>
+             trackedSafeInt32;
+
+    static_assert(sizeof(trackedSafeInt32) == sizeof(safeInt32), "");
+
+    trackedSafeInt32 b(kConst, kSafe, 1);
+    EXPECT_EQ(b.flags(), kConst);
+    EXPECT_EQ(b.get().flags(), kSafe);
+    EXPECT_EQ(b.get().get(), 1);
+    b.setFlags(kCalculated);
+    volatile bool overflow = true;
+    b.get().setFlags(overflow ? kUnsafe : kSafe);
+
+    enum ValidatedFlags : uint32_t {
+      kUnsafeV = kUnsafe,
+      kSafeV = kSafe,
+      kValidated = kSafe | 2,
+      kSharedMaskV = kSafeMask,
+      kValidatedMask = _Flagged_helper::minMask(kValidated),
+    };
+    typedef Flagged<safeInt32, ValidatedFlags, kValidatedMask, kSharedMaskV> validatedInt32;
+
+    validatedInt32 v(kUnsafeV, kSafe, 10);
+    EXPECT_EQ(v.flags(), kUnsafeV);
+    EXPECT_EQ(v.get().flags(), kUnsafe);  // !kUnsafeV overrides kSafe
+    EXPECT_EQ(v.get().get(), 10);
+    v.setFlags(kValidated);
+    EXPECT_EQ(v.flags(), kValidated);
+    EXPECT_EQ(v.get().flags(), kSafe);
+    v.get().setFlags(kUnsafe);
+    EXPECT_EQ(v.flags(), 2);  // NOTE: sharing masks with enums allows strange situations to occur
+}
+
+TEST_F(FlaggedTest, _Flagged_helper_Test) {
+    using helper = _Flagged_helper;
+
+    using i32 = int32_t;
+    using u32 = uint32_t;
+    using u8 = uint8_t;
+
+    // base2
+    static_assert(Flagged<i32, u32, 0u, 0u, 0>::sFlagMask == 0u, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, 0>::sFlagShift == 0, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, 0>::sEffectiveMask == 0u, "");
+
+    static_assert(Flagged<i32, u32, 0u, 0u, 10>::sFlagMask == 0u, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, 10>::sFlagShift == 10, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, 10>::sEffectiveMask == 0u, "");
+
+    static_assert(Flagged<i32, u32, 0u, 0u, -1>::sFlagMask == 0u, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, -1>::sFlagShift == 0, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, -1>::sEffectiveMask == 0u, "");
+
+    static_assert(Flagged<i32, u32, 99u, 0u, 0>::sFlagMask == 99u, "");
+    static_assert(Flagged<i32, u32, 99u, 0u, 0>::sFlagShift == 0, "");
+    static_assert(Flagged<i32, u32, 99u, 0u, 0>::sEffectiveMask == 99u, "");
+
+    static_assert(Flagged<i32, u32, 0x99u, 0u, 12>::sFlagMask == 0x99u, "");
+    static_assert(Flagged<i32, u32, 0x99u, 0u, 12>::sFlagShift == 12, "");
+    static_assert(Flagged<i32, u32, 0x99u, 0u, 12>::sEffectiveMask == 0x99000u, "");
+
+    static_assert(Flagged<i32, u32, 99u, 0u, -1>::sFlagMask == 99u, "");
+    static_assert(Flagged<i32, u32, 99u, 0u, -1>::sFlagShift == 0, "");
+    static_assert(Flagged<i32, u32, 99u, 0u, -1>::sEffectiveMask == 99u, "");
+
+    // mask_of<T, Flag>
+    // also Flagged<> no default
+    typedef Flagged<i32, u32, 0x800F /* mask */, 0 /* shared mask */, 0 /* shift */> i32_800f_0;
+    typedef Flagged<i32, u32, 0x800F /* mask */, 0 /* shared mask */, 4 /* shift */> i32_800f_4;
+    // this also tests that these types can be instantiated
+    static_assert(sizeof(i32_800f_0) >= sizeof(i32) + sizeof(u32),
+                  "should be at least size of component types");
+    static_assert(sizeof(i32_800f_4) == sizeof(i32_800f_0), "regardless of shift");
+    static_assert(!i32_800f_0::sFlagCombined, "");
+    static_assert(!i32_800f_4::sFlagCombined, "");
+
+    static_assert(helper::mask_of<i32_800f_0, u32>::value == 0x800F, "incorrect mask");
+    static_assert(helper::mask_of<i32_800f_0, i32>::value == 0,
+                  "mask should be 0 when types mismatch");
+    static_assert(helper::mask_of<i32_800f_0, u32>::effective_value == 0x800F, "incorrect mask");
+    static_assert(helper::mask_of<i32_800f_0, i32>::effective_value == 0,
+                  "mask should be 0 when types mismatch");
+    static_assert(helper::mask_of<i32_800f_0, u32>::shift == 0, "incorrect shift");
+    static_assert(helper::mask_of<i32_800f_0, i32>::shift == 0,
+                  "shift should be 0 when types mismatch");
+
+    static_assert(helper::mask_of<i32_800f_4, u32>::value == 0x800F, "incorrect mask");
+    static_assert(helper::mask_of<i32_800f_4, i32>::value == 0,
+                  "mask should be 0 when types mismatch");
+    static_assert(helper::mask_of<i32_800f_4, u32>::effective_value == 0x800F0, "incorrect mask");
+    static_assert(helper::mask_of<i32_800f_4, i32>::effective_value == 0,
+                  "mask should be 0 when types mismatch");
+    static_assert(helper::mask_of<i32_800f_4, u32>::shift == 4, "incorrect shift");
+    static_assert(helper::mask_of<i32_800f_4, i32>::shift == 0,
+                  "shift should be 0 when types mismatch");
+    static_assert(helper::mask_of<i32, u32>::value == 0, "mask should be 0 if not masked");
+    static_assert(helper::mask_of<i32, i32>::value == 0, "mask should be 0 if not masked");
+
+    // lshift(value, n)
+    static_assert(helper::lshift(0U, 0) == 0U, "");
+    static_assert(helper::lshift(0U, 30) == 0U, "");
+    static_assert(helper::lshift(1U, 0) == 1U, "");
+    static_assert(helper::lshift(1U, 10) == 1024U, "");
+    static_assert(helper::lshift(10U, 10) == 10240U, "");
+    static_assert(helper::lshift(10, 10) == 10240, "");
+    static_assert(helper::lshift(-10, 0) == -10, "");
+    // static_assert(helper::lshift(-10, 10) == -10240, ""); // error: left shift of negative value
+
+    // minMask(maxValue)
+    static_assert(helper::minMask(0U) == 0U, "lowest 0 bits");
+    static_assert(helper::minMask(1U) == 1U, "lowest 1 bit");
+    static_assert(helper::minMask(2U) == 3U, "lowest 2 bits");
+    static_assert(helper::minMask(3U) == 3U, "lowest 2 bits");
+    static_assert(helper::minMask(4U) == 7U, "lowest 3 bits");
+    static_assert(helper::minMask(~0U) == ~0U, "all bits");
+    // static_assert(helper::minMask(10) == 0xF, "all bits"); // error: must be unsigned
+
+    // topBits(n)
+    static_assert(helper::topBits<u32>(0) == 0U, "top 0 bit");
+    static_assert(helper::topBits<u32>(1) == 0x80000000U, "top 1 bit");
+    static_assert(helper::topBits<u32>(2) == 0xC0000000U, "top 2 bits");
+    static_assert(helper::topBits<u32>(12) == 0xFFF00000U, "top 12 bits");
+    static_assert(helper::topBits<u32>(32) == 0xFFFFFFFFU, "all bits");
+    // static_assert(helper::topBits<u32>(33) == 0xFFFFFFFFU, ""); // should OVERFLOW
+
+    static_assert(helper::topBits<u8>(0) == 0U, "top 0 bit");
+    static_assert(helper::topBits<u8>(1) == 0x80U, "top 1 bit");
+    static_assert(helper::topBits<u8>(2) == 0xC0U, "top 2 bit");
+    static_assert(helper::topBits<u8>(8) == 0xFFU, "all bits");
+    // static_assert(helper::topBits<u8>(9) == 0xFFU, ""); // should OVERFLOW
+
+    // getShift(mask, base, shared, base-shift, base-effective)
+    static_assert(helper::getShift(0u, 0u, 0u, 0, 0u) == 0, "no flag require no shift");
+    static_assert(helper::getShift(0u, 0u, 1u, 0, 0u) == -1,
+                  "shared must be within mask and base mask");
+    static_assert(helper::getShift(0u, 1u, 1u, 0, 1u) == -1, "shared must be within mask");
+    static_assert(helper::getShift(0u, 1u, 0u, 0, 1u) == 0,
+                  "no flags require no shift even with base mask");
+    static_assert(helper::getShift(0u, 1u, 0u, 1, 2u) == 0,
+                  "no flags require no shift even with shifted base mask");
+    static_assert(helper::getShift(1u, 0u, 0u, 0, 0u) == 0, "no base mask requires no shift");
+    static_assert(helper::getShift(1u, 1u, 0u, 0, 1u) == 1,
+                  "overlapping mask and basemask requires shift");
+    static_assert(helper::getShift(1u, 1u, 0u, 0, 1u) == 1,
+                  "overlapping mask and basemask requires shift");
+    static_assert(helper::getShift(1u, 1u, 1u, 0, 1u) == 0,
+                  "shared mask requires using base shift");
+    static_assert(helper::getShift(1u, 1u, 1u, 1, 2u) == 1,
+                  "shared mask requires using base shift");
+    static_assert(helper::getShift(3u, 5u, 1u, 0, 5u) == 0,
+                  "mask and basemask that overlap only in shared region requires no shift");
+    static_assert(helper::getShift(3u, 7u, 1u, 0, 7u) == -1,
+                  "mask and basemask must not overlap in more than shared region");
+    static_assert(helper::getShift(1u, 0u, 1u, 0, 0u) == -1, "shared must be within base mask");
+
+    static_assert(helper::getShift(0u, 1u, 0u, 1, 1u) == -2, "effective mask must cover base mask");
+    static_assert(helper::getShift(0u, 5u, 0u, 1, 2u) == -2, "effective mask must cover base mask");
+    static_assert(helper::getShift(0u, 5u, 0u, 1, 10u) == 0, "");
+    static_assert(helper::getShift(0u, 5u, 0u, 1, 31u) == 0,
+                  "effective mask can be larger than base mask");
+
+    static_assert(helper::getShift(0x800Fu, 0x800Fu, 0x800Fu, 0, 0x800Fu) == 0,
+                  "(0x800F << 0) & 0x800F == 0x800F");
+    static_assert(helper::getShift(0x800Fu, 0x800Fu, 0x800Fu, 16, 0x800F0000u) == 16,
+                  "(0x800F << 0) & 0x800F == 0x800F");
+    static_assert(helper::getShift(0x1800Fu, 0x800Fu, 0x800Fu, 0, 0x800Fu) == 0,
+                  "(0x1800F << 0) & 0x800F == 0x800F");
+    static_assert(helper::getShift(0x1800Fu, 0x800Fu, 0x800Fu, 16, 0x800F0000u) == -1,
+                  "(0x1800F << 16) overflows");
+
+    // verify that when not sharing masks, effective mask makes the difference
+    static_assert(helper::getShift(0x800Fu, 0u, 0u, 0, 0x800Fu) == 4,
+                  "(0x800F << 4) & 0x800F == 0");
+    static_assert(helper::getShift(0x800Fu, 0x2u, 0u, 0, 0x8002u) == 2,
+                  "(0x800F << 2) & 0x8002 == 0");
+    static_assert(helper::getShift(0x800Fu, 0x1u, 0u, 15, 0x8001u) == 1,
+                  "(0x800F << 1) & 0x8001 == 0");
+    static_assert(helper::getShift(0x800Fu, 0x800Fu, 0u, 16, 0x800F0000u) == 0,
+                  "0x800F & 0x800F0000 == 0");
+    static_assert(helper::getShift(0x800Fu, 0x800F8000u, 0u, 0, 0x800F8000u) == 5,
+                  "(0x800F << 5) & 0x800F8000 == 0");
+    static_assert(helper::getShift(0x800Fu, 0xF0000u, 0u, 0, 0x800F8000u) == 5,
+                  "(0x800F << 5) & 0x800F8000 == 0");
+    static_assert(helper::getShift(0x800Fu, 0x1Fu, 0u, 15, 0x800F8000u) == 5,
+                  "(0x800F << 5) & 0x800F8000 == 0");
+    static_assert(helper::getShift(0xFFu, 0x80808080u, 0u, 0, 0x80808080u) == -1,
+                  "0xFF always overlaps with 0x80808080");
+    static_assert(helper::getShift(0xFFu, 0x10001000u, 0u, 3, 0x80808080u) == -1,
+                  "0xFF always overlaps with 0x80808080");
+    static_assert(helper::getShift(0xFFu, 0x80808040u, 0u, 0, 0x80808040u) == 7,
+                  "(0xFF << 7) & 0x 80808040 == 0");
+
+    // verify min_shift (mask must be positive or no shift can be required)
+    static_assert(helper::getShift(0xFF, 0x40808040, 0, 0, 0x40808040) == 7, "");
+    static_assert(helper::getShift((i32)0x800000FF, 0x40808040, 0, 0, 0x40808040) == -1, "");
+    static_assert(helper::getShift(0x100000FF, 0x40808040, 0, 0, 0x40808040) == -1, "");
+    static_assert(helper::getShift(0xFF, (i32)0x80808040, 0, 0, (i32)0x80808040) == 7, "");
+    static_assert(helper::getShift((i32)0x80007F80, 0x40808040, 0, 0, 0x40808040) == 0, "");
+
+    // shared mask can also be negative (but not shift can be required)
+    static_assert(helper::getShift((i32)0x80007F80, (i32)0xC0808040, (i32)0x80000000,
+                                   0, (i32)0xC0808040) == 0, "");
+    static_assert(helper::getShift((i32)0x80007F80, (i32)0xC0808040, (i32)0xC0000000,
+                                   0, (i32)0xC0808040) == -1, "");
+    static_assert(helper::getShift((i32)0x80007F80, (i32)0x60404020, (i32)0x60000000,
+                                   1, (i32)0xC0808040) == -1, "");
+
+    // min_shift
+    typedef Flagged<i32, u32, 0u> i32_0_0;
+    typedef Flagged<i32, u32, 1u> i32_1_0;
+    typedef Flagged<i32, u32, 1u, 0u, 1> i32_1_1;
+
+    // this is a wrapper over getShift, so same test cases apply when T is flagged
+    static_assert(helper::min_shift<i32_0_0, u32, 0u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32_0_0, u32, 0u, 1u>::value == -1, "");
+    static_assert(helper::min_shift<i32_1_0, u32, 0u, 1u>::value == -1, "");
+    static_assert(helper::min_shift<i32_1_0, u32, 0u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32_0_0, u32, 1u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32_1_0, u32, 1u, 0u>::value == 1, "");
+    static_assert(helper::min_shift<i32_1_0, u32, 1u, 1u>::value == 0, "");
+    static_assert(helper::min_shift<i32_1_1, u32, 1u, 1u>::value == 1, "");
+    static_assert(helper::min_shift<i32_1_1, u32, 3u, 0u>::value == 2, "");
+    static_assert(helper::min_shift<Flagged<i32, u32, 5u>, u32, 3u, 1u>::value == 0, "");
+    static_assert(helper::min_shift<Flagged<i32, u32, 7u>, u32, 3u, 1u>::value == -1, "");
+    static_assert(helper::min_shift<i32_0_0, u32, 1u, 1u>::value == -1, "");
+
+    static_assert(helper::min_shift<i32_800f_0, u32, 0x800Fu, 0u>::value == 4, "");
+    static_assert(helper::min_shift<i32_800f_4, u32, 0x1800Fu, 0x800Fu>::value == 4, "");
+    static_assert(helper::min_shift<i32_800f_4, u32, 0x800Fu, 0u>::value == 0, "");
+    static_assert(helper::min_shift<Flagged<i32, u32, 0x8002u>, u32, 0x800Fu, 0u>::value == 2, "");
+    static_assert(helper::min_shift<Flagged<i32, u32, 0x8001u>, u32, 0x800Fu, 0u>::value == 1, "");
+    static_assert(
+            helper::min_shift<Flagged<i32, u32, 0x800Fu, 0u, 16>, u32, 0x800Fu, 0u>::value == 0, "");
+    static_assert(
+            helper::min_shift<Flagged<i32, u32, 0x800F8000u>, u32, 0x800Fu, 0u>::value == 5, "");
+    static_assert(
+            helper::min_shift<Flagged<i32, u32, 0x80808080u>, u32, 0xFFu, 0u>::value == -1, "");
+    static_assert(
+            helper::min_shift<Flagged<i32, u32, 0x80808040u>, u32, 0xFFu, 0u>::value == 7, "");
+
+    // for min_shift, non-tagged type behaves as if having base mask of 0
+    static_assert(helper::min_shift<i32, u32, 0u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<u32, u32, 0u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32, u32, 0u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32, u32, 0u, 1u>::value == -1, "");
+    static_assert(helper::min_shift<i32, u32, 1u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32, u32, 1u, 1u>::value == -1, "");
+
+    // verify min_shift (mask must be positive or no shift can be required)
+    static_assert(helper::min_shift<Flagged<i32, i32, 0x40808040>, i32, 0xFF, 0>::value == 7, "");
+    static_assert(helper::min_shift<Flagged<i32, i32, 0x40808040>,
+                                    i32, (i32)0x800000FF, 0>::value == -1, "");
+    static_assert(helper::min_shift<Flagged<i32, i32, 0x40808040>,
+                                    i32, 0x100000FF, 0>::value == -1, "");
+    static_assert(helper::min_shift<Flagged<i32, i32, (i32)0x80808040>,
+                                    i32, 0xFF, 0>::value == 7, "");
+    static_assert(helper::min_shift<Flagged<i32, i32, 0x40808040>,
+                                    i32, (i32)0x80007F80, 0>::value == 0, "");
+
+    static_assert(helper::min_shift<Flagged<i32, i32, (i32)0x80808040>,
+                                    i32, (i32)0x80007F80, (i32)0x80000000>::value == 0, "");
+    static_assert(helper::min_shift<Flagged<i32, i32, (i32)0xC0808040>,
+                                    i32, (i32)0x80007F80, (i32)0xC0000000>::value == -1, "");
+    // note: cannot create a flagged type with signed flag and shift
+    // static_assert(helper::min_shift<Flagged<i32, i32, (i32)0x60404020, 0, 1>,
+    //                                i32, (i32)0x40003FC0, (i32)0x40000000>::value == -1, "");
+
+    typedef Flagged<i32, u32, 0x800F /* mask */, 0 /* shared mask */, 16 /* shift */> i32_800f_16;
+    static_assert_equals(sizeof(i32_800f_16), sizeof(i32_800f_0), "");
+    // shifted mask overflows!
+    // typedef Flagged<i32, u32, 0x800F /* mask */, 0 /* shared mask */, 17 /* shift */> i32_800f_17;
+    // static_assert(sizeof(i32_800f_17) == sizeof(i32_800f_0), "");
+    typedef Flagged<i32, i32, 0x800F /* mask */, 0 /* shared mask */, 15 /* shift */> i32_800f_15i;
+    static_assert_equals(sizeof(i32_800f_15i), sizeof(i32_800f_0), "");
+    // shifted mask overflows!
+    // typedef Flagged<i32, i32, 0x800F /* mask */, 0 /* shared mask */, 16 /* shift */> i32_800f_16i;
+    // static_assert(sizeof(i32_800f_16i) == sizeof(i32_800f_0), "");
+
+    // canCombine(mask, base, shared, shift, base-shift, base-effective)
+    static_assert(helper::canCombine(0u, 0u, 0u, 0, 0, 0u), "using no mask is valid");
+    static_assert(helper::canCombine(0u, 0u, 0u, 0, 0, 0u), "");
+    static_assert(helper::canCombine(0u, 0u, 0u, 4, 0, 0u), "");
+    static_assert(!helper::canCombine(0u, 0u, 1u, 0, 0, 0u),
+                  "shared mask must be the overlap of masks");
+    static_assert(helper::canCombine(1u, 0u, 0u, 0, 0, 0u), "");
+    static_assert(helper::canCombine(1u, 0u, 0u, 4, 0, 0u), "");
+    static_assert(helper::canCombine(3u, 5u, 1u, 0, 0, 5u), "");
+    static_assert(!helper::canCombine(3u, 3u, 3u, 1, 0, 3u), "shift must match when sharing mask");
+    static_assert(helper::canCombine(3u, 3u, 3u, 1, 1, 6u), "");
+    static_assert(!helper::canCombine(3u, 3u, 3u, 1, 2, 12u), "shift must match when sharing mask");
+    static_assert(!helper::canCombine(3u, 7u, 1u, 0, 0, 7u), "");
+    static_assert(!helper::canCombine(1u, 0u, 1u, 0, 0, 0u), "");
+
+    static_assert(!helper::canCombine(0u, 1u, 1u, 0, 0, 1u),
+                  "shared mask must be the overlap of masks");
+    static_assert(helper::canCombine(0u, 1u, 0u, 0, 0, 1u), "");
+    static_assert(helper::canCombine(0u, 1u, 0u, 4, 0, 1u), "");
+    static_assert(helper::canCombine(1u, 1u, 0u, 1, 0, 1u), "");
+    static_assert(!helper::canCombine(1u, 1u, 0u, 0, 0, 1u), "");
+    static_assert(helper::canCombine(1u, 1u, 0u, 1, 0, 1u), "");
+    static_assert(helper::canCombine(1u, 1u, 1u, 0, 0, 1u), "");
+    static_assert(!helper::canCombine(1u, 1u, 1u, 1, 0, 1u), "shift must match when sharing mask");
+
+    static_assert(helper::canCombine(0x800Fu, 0x800Fu, 0u, 4, 0, 0x800Fu), "");
+    static_assert(!helper::canCombine(0x800Fu, 0x800Fu, 0u, 1, 0, 0x800Fu), "");
+    static_assert(helper::canCombine(0x800Fu, 0x8002u, 0u, 2, 0, 0x8002u), "");
+    static_assert(helper::canCombine(0x800Fu, 0x8001u, 0u, 1, 0, 0x8001u), "");
+    static_assert(helper::canCombine(0x800Fu, 0x800Fu, 0u, 0, 16, 0x800F0000u), "");
+    static_assert(helper::canCombine(0x800Fu, 0x800Fu, 0x800Fu, 16, 16, 0x800F0000u), "");
+    static_assert(!helper::canCombine(0x1800Fu, 0x800Fu, 0u, 0, 16, 0x800F0000u), "");
+    static_assert(!helper::canCombine(0x1800Fu, 0x800Fu, 0x800Fu, 16, 16, 0x800F0000u), "");
+    static_assert(helper::canCombine(0x800Fu, 0x800F8000u, 0u, 8, 0, 0x800F8000u), "");
+    static_assert(!helper::canCombine(0xFFu, 0x80808080u, 0u, -1, 0, 0x80808080u), "");
+    static_assert(helper::canCombine(0xFFu, 0x80808040u, 0u, 7, 0, 0x80808040u), "");
+    static_assert(helper::canCombine(0xFFu, 0x8000u, 0u, 7, 0, 0x80808040u), "");
+    static_assert(helper::canCombine(0xFFu, 0x101u, 0u, 7, 15, 0x80808040u), "");
+
+    // can combine signed-flagged types only if mask is positive or no shift is required
+    static_assert(!helper::canCombine(0xFF, 0x40808040, 0, 0, 0, 0x40808040), "");
+    static_assert(helper::canCombine(0xFF, 0x40808040, 0, 7, 0, 0x40808040), "");
+    static_assert(!helper::canCombine((i32)0x800000FF, 0x40808040, 0, 0, 0, 0x40808040), "");
+    static_assert(!helper::canCombine((i32)0x800000FF, 0x40808040, 0, 7, 0, 0x40808040), "");
+    static_assert(!helper::canCombine(0x100000FF, 0x40808040, 0, 0, 0, 0x40808040), "");
+    static_assert(!helper::canCombine(0x100000FF, 0x40808040, 0, 7, 0, 0x40808040), "");
+    static_assert(!helper::canCombine(0xFF, (i32)0x80808040, 0, 0, 0, (i32)0x80808040), "");
+    static_assert(helper::canCombine(0xFF, (i32)0x80808040, 0, 7, 0, (i32)0x80808040), "");
+    static_assert(helper::canCombine((i32)0x80007F80, 0x40808040, 0, 0, 0, 0x40808040), "");
+
+    static_assert(helper::canCombine((i32)0x80007F80, (i32)0x80808040, (i32)0x80000000, 0, 0, (i32)0x80808040), "");
+    static_assert(!helper::canCombine((i32)0xC0007F80, (i32)0x80808040, (i32)0xC0000000, 0, 0, (i32)0x80808040), "");
+    static_assert(!helper::canCombine((i32)0x80007F80, (i32)0x80808040, (i32)0x80000000, 1, 0, (i32)0x80808040), "");
+    static_assert(!helper::canCombine((i32)0xC0007F80, (i32)0x80808040, (i32)0xC0000000, 1, 0, (i32)0x80808040), "");
+
+    // can_combine<T, Flag, MASK, [SHARED_MASK], [SHIFT]
+    static_assert(helper::can_combine<i32_0_0, u32, 0u>::value, "");
+    static_assert(helper::can_combine<i32_0_0, u32, 0u, 0u>::value, "");
+    static_assert(helper::can_combine<i32_0_0, u32, 0u, 0u, 4>::value, "");
+    static_assert(!helper::can_combine<i32_0_0, u32, 0u, 1u>::value, "");
+    static_assert(helper::can_combine<i32_0_0, u32, 1u, 0u>::value, "");
+    static_assert(helper::can_combine<i32_0_0, u32, 1u, 0u, 4>::value, "");
+    static_assert(!helper::can_combine<i32_0_0, u32, 1u, 1u>::value, "");
+
+    static_assert(!helper::can_combine<i32_1_0, u32, 0u, 1u>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 0u, 0u>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 0u, 0u, 4>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 1u, 0u>::value, "");
+    static_assert(!helper::can_combine<i32_1_0, u32, 1u, 0u, 0>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 1u, 0u, 1>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 1u, 1u>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 1u, 1u, 0>::value, "");
+    static_assert(!helper::can_combine<i32_1_0, u32, 1u, 1u, 1>::value,
+                  "shouldn't be able to use SHIFT with SHARED_MASK");
+
+    static_assert(helper::can_combine<i32_800f_0, u32, 0x800Fu, 0u, 4>::value, "");
+    static_assert(!helper::can_combine<i32_800f_0, u32, 0x800Fu, 0u, 1>::value, "");
+    static_assert(helper::can_combine<i32_800f_0, u32, 0x800Fu, 0u>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, u32, 0x8002u>, u32, 0x800Fu, 0u>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, u32, 0x8001u>, u32, 0x800Fu, 0u>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, u32, 0x800F0000u>, u32, 0x800Fu, 0u>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, u32, 0x800F8000u>, u32, 0x800Fu, 0u>::value, "");
+    static_assert(!helper::can_combine<Flagged<i32, u32, 0x80808080u>, u32, 0xFFu, 0u>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, u32, 0x80808040u>, u32, 0xFFu, 0u>::value, "");
+
+    // can combine signed-flagged types only if mask is positive or no shift is required
+    static_assert(helper::can_combine<Flagged<i32, i32, 0x40808040>, i32, 0xFF, 0>::value, "");
+    static_assert(!helper::can_combine<Flagged<i32, i32, 0x40808040>,
+                                       i32, (i32)0x800000FF, 0>::value, "");
+    static_assert(!helper::can_combine<Flagged<i32, i32, 0x40808040>,
+                                       i32, 0x100000FF, 0>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, i32, (i32)0x80808040>, i32, 0xFF, 0>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, i32, 0x40808040>,
+                                      i32, (i32)0x80007F80, 0>::value, "");
+
+    static_assert(helper::can_combine<Flagged<i32, i32, (i32)0x80808040>,
+                                      i32, (i32)0x80007F80, (i32)0x80000000>::value, "");
+    static_assert(!helper::can_combine<Flagged<i32, i32, (i32)0xC0808040>,
+                                       i32, (i32)0x80007F80, (i32)0xC0000000>::value, "");
+
+    static_assert(helper::min_shift<Flagged<i32, FLAG, (FLAG)0x80808040>,
+                                    FLAG, (FLAG)0x80007F80, (FLAG)0x80000000>::value == 0, "");
+    static_assert(helper::can_combine<Flagged<i32, FLAG, (FLAG)0x80808040>,
+                                      FLAG, (FLAG)0x80007F80, (FLAG)0x80000000>::value, "");
+
+    // cannot combine non-tagged types
+    static_assert(!helper::can_combine<i32, u32, 0u, 0u>::value, "");
+    static_assert(!helper::can_combine<u32, u32, 0u, 0u>::value, "");
+    static_assert(!helper::can_combine<i32, u32, 0u, 0u>::value, "");
+    static_assert(!helper::can_combine<i32, u32, 0u, 1u>::value, "");
+    static_assert(!helper::can_combine<i32, u32, 1u, 0u>::value, "");
+    static_assert(!helper::can_combine<i32, u32, 1u, 1u>::value, "");
+
+    typedef Flagged<i32_800f_0, u32, 0x800F /* mask */, 0 /* shared mask */> i32_800f_800f;
+    static_assert(i32_800f_800f::sFlagMask == 0x800F, "");
+    static_assert(i32_800f_800f::sFlagShift == 4, "");
+    static_assert(i32_800f_800f::sEffectiveMask == 0x880FF, "");
+    static_assert(!i32_800f_0::sFlagCombined, "");
+    static_assert(!i32_800f_4::sFlagCombined, "");
+
+    static_assert(i32_800f_800f::sFlagCombined, "");
+    static_assert_equals(sizeof(i32_800f_800f), sizeof(i32_800f_0), "");
+
+    typedef Flagged<i32_800f_0, u32, 0x1FFFF /* mask */> i32_800f_1ffff;
+    static_assert(i32_800f_1ffff::sFlagMask == 0x1FFFF, "");
+    static_assert(i32_800f_1ffff::sFlagShift == 0, "");
+    static_assert(i32_800f_1ffff::sEffectiveMask == 0x1FFFF, "");
+    static_assert(!i32_800f_1ffff::sFlagCombined, "");
+
+    // operational tests
+    i32_800f_800f val(0x8000, 0x1234, 56);
+    EXPECT_EQ(val.get().get(), 56);
+    EXPECT_EQ(val.flags(), 0x8000u);
+    EXPECT_EQ(val.get().flags(), 0x1234u & 0x800F);
+    val.setFlags(0x12345);
+    EXPECT_EQ(val.flags(), 0x12345u & 0x800F);
+    EXPECT_EQ(val.get().flags(), 0x1234u & 0x800F);
+    val.get().setFlags(0x54321);
+    EXPECT_EQ(val.flags(), 0x12345u & 0x800F);
+    EXPECT_EQ(val.get().flags(), 0x54321u & 0x800F);
+    EXPECT_EQ(val.get().get(), 56);
+
+    typedef Flagged<i32_800f_4, u32, 0x800F /* mask */, 0 /* shared mask */> i32_800f_800f_B;
+    static_assert(i32_800f_800f_B::sFlagMask == 0x800F, "");
+    static_assert(i32_800f_800f_B::sFlagShift == 0, "");
+    static_assert(i32_800f_800f_B::sEffectiveMask == 0x880FF, "");
+
+    i32_800f_800f_B valB(0x8000, 0x1234, -987);
+    EXPECT_EQ(valB.get().get(), -987);
+    EXPECT_EQ(valB.flags(), 0x8000u);
+    EXPECT_EQ(valB.get().flags(), 0x1234u & 0x800F);
+    valB.setFlags(0x12345);
+    EXPECT_EQ(valB.flags(), 0x12345u & 0x800F);
+    EXPECT_EQ(valB.get().flags(), 0x1234u & 0x800F);
+    valB.get().setFlags(0x5C321);
+    EXPECT_EQ(valB.flags(), 0x12345u & 0x800F);
+    EXPECT_EQ(valB.get().flags(), 0x5C321u & 0x800F);
+    EXPECT_EQ(valB.get().get(), -987);
+
+    typedef Flagged<Flagged<i32, u32, 0xFF>, u32, 0xFF0, 0xF0> i32_ff_ff0;
+    i32_ff_ff0 valC(0xABCD, 0x1234, 101);
+    EXPECT_EQ(valC.get().get(), 101);
+    EXPECT_EQ(valC.flags(), 0xBC0u);
+    EXPECT_EQ(valC.get().flags(), 0xC4u);
+    valC.setFlags(0x12345);
+    EXPECT_EQ(valC.flags(), 0x340u);
+    EXPECT_EQ(valC.get().flags(), 0x44u);
+    valC.get().setFlags(0x54321);
+    EXPECT_EQ(valC.flags(), 0x320u);
+    EXPECT_EQ(valC.get().flags(), 0x21u);
+    EXPECT_EQ(valC.get().get(), 101);
+
+    // when combining flags (with no shift), it should work with signed flags
+    typedef Flagged<Flagged<i32, FLAG, kMask0>, FLAG, kMask1, kMaskCommon> i32_F_ff_ff0;
+    static_assert(i32_F_ff_ff0::sFlagCombined, "flags should be combined");
+
+    i32_F_ff_ff0 valD(kFlag1_A, kFlag0_A, 1023);
+    EXPECT_EQ(valD.get().get(), 1023);
+    EXPECT_EQ(valD.flags(), kFlag1_A);
+    EXPECT_EQ(valD.get().flags(), kFlag0_A);
+    valD.setFlags(kFlag1_B);
+    EXPECT_EQ(valD.flags(), kFlag1_B);
+    EXPECT_EQ(valD.get().flags(), FLAG(0x0BA));
+    valD.get().setFlags(kFlag0_C);
+    EXPECT_EQ(valD.flags(), FLAG(0xBC0));
+    EXPECT_EQ(valD.get().flags(), kFlag0_C);
+    EXPECT_EQ(valD.get().get(), 1023);
+}
+
+} // namespace android
diff --git a/media/libstagefright/foundation/tests/TypeTraits_test.cpp b/media/libstagefright/foundation/tests/TypeTraits_test.cpp
new file mode 100644
index 0000000..1e2049d
--- /dev/null
+++ b/media/libstagefright/foundation/tests/TypeTraits_test.cpp
@@ -0,0 +1,167 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "TypeTraits_test"
+
+#include <gtest/gtest.h>
+
+#include <media/stagefright/foundation/TypeTraits.h>
+
+namespace android {
+
+class TypeTraitsTest : public ::testing::Test {
+protected:
+    enum A { };
+    enum UA : uint32_t { };
+    enum IA : int32_t { };
+};
+
+// =========== basic sanity tests for type-support templates
+TEST_F(TypeTraitsTest, StaticTests) {
+
+    // ============ is_integral_or_enum
+
+    static_assert(!std::is_integral<A>::value, "enums should not be integral");
+    static_assert(!std::is_integral<UA>::value, "enums should not be integral");
+    static_assert(!std::is_integral<IA>::value, "enums should not be integral");
+    static_assert(is_integral_or_enum<A>::value, "enums should be integral_or_enum");
+    static_assert(is_integral_or_enum<UA>::value, "enums should be integral_or_enum");
+    static_assert(is_integral_or_enum<IA>::value, "enums should be integral_or_enum");
+    static_assert(is_integral_or_enum<int>::value, "ints should be integral_or_enum");
+    static_assert(is_integral_or_enum<unsigned>::value, "unsigned ints should be integral_or_enum");
+    static_assert(!is_integral_or_enum<float>::value, "floats should not be integral_or_enum");
+
+    // ============ is_unsigned_integral
+
+    static_assert(!std::is_unsigned<UA>::value,
+                  "unsigned enums should not be unsigned");
+    static_assert(!std::is_unsigned<IA>::value,
+                  "unsigned enums should not be unsigned");
+    static_assert(std::is_unsigned<typename std::underlying_type<UA>::type>::value,
+                  "underlying type of unsigned enums should be unsigned");
+    static_assert(!std::is_unsigned<typename std::underlying_type<IA>::type>::value,
+                  "underlying type of unsigned enums should be unsigned");
+    static_assert(is_unsigned_integral<UA>::value,
+                  "unsigned enums should be unsigned_integral");
+    static_assert(!is_unsigned_integral<IA>::value,
+                  "signed enums should not be unsigned_integral");
+    static_assert(is_unsigned_integral<unsigned>::value,
+                  "unsigned ints should be unsigned_integral");
+    static_assert(!is_unsigned_integral<int>::value,
+                  "ints should not be unsigned_integral");
+    static_assert(!is_unsigned_integral<float>::value,
+                  "floats should not be unsigned_integral");
+
+    // ============ is_signed_integral
+
+    static_assert(!std::is_signed<UA>::value,
+                  "unsigned enums should not be signed");
+    static_assert(!std::is_signed<IA>::value,
+                  "unsigned enums should not be signed");
+    static_assert(!std::is_signed<typename std::underlying_type<UA>::type>::value,
+                  "underlying type of unsigned enums should be signed");
+    static_assert(std::is_signed<typename std::underlying_type<IA>::type>::value,
+                  "underlying type of unsigned enums should be signed");
+    static_assert(!is_signed_integral<UA>::value,
+                  "unsigned enums should not be signed_integral");
+    static_assert(is_signed_integral<IA>::value,
+                  "signed enums should be signed_integral");
+    static_assert(!is_signed_integral<unsigned>::value,
+                  "unsigned ints should not be signed_integral");
+    static_assert(is_signed_integral<int>::value,
+                  "ints should be signed_integral");
+    static_assert(!is_signed_integral<float>::value,
+                  "floats should not be signed_integral");
+
+    // ============ underlying_integral_type
+
+    static_assert(std::is_same<uint64_t, typename underlying_integral_type<uint64_t>::type>::value,
+                  "underlying integral type of uint64_t should be uint64_t");
+    static_assert(std::is_same<uint32_t, typename underlying_integral_type<UA>::type>::value,
+                  "underlying integral type of uint32_t based enums should be uint32_t");
+    static_assert(std::is_same<int64_t, typename underlying_integral_type<int64_t>::type>::value,
+                  "underlying integral type of int64_t should be int64_t");
+    static_assert(std::is_same<int32_t, typename underlying_integral_type<IA>::type>::value,
+                  "underlying integral type of int32_t based enums should be int32_t");
+    //typedef underlying_integral_type<float>::type no_type;
+    static_assert(std::is_same<void, typename underlying_integral_type<float, void>::type>::value,
+                  "underlying integral type of float cannot be specified");
+
+    // ============ is_one_of
+
+    static_assert(!is_one_of<int>::value, "int shouldn't be one of {}");
+    static_assert(!is_one_of<int, unsigned>::value, "int shouldn't be one of {unsigned}");
+    static_assert(!is_one_of<int, unsigned, float>::value,
+                  "int shouldn't be one of {unsigned, float}");
+    static_assert(is_one_of<int, int>::value, "int should be one of {int}");
+    static_assert(is_one_of<int, int, float>::value, "int should be one of {int, float}");
+    static_assert(is_one_of<int, float, int>::value, "int should be one of {float, int}");
+    static_assert(is_one_of<int, float, int, unsigned>::value,
+                  "int should be one of {float, int, unsigned}");
+    static_assert(is_one_of<int, float, unsigned, int>::value,
+                  "int should be one of {float, unsigned, int}");
+    static_assert(!is_one_of<int, int&>::value, "int shouldn't be one of {int&}");
+
+    // ============ are_unique
+
+    static_assert(are_unique<>::value, "{} should be unique");
+    static_assert(are_unique<int>::value, "{int} should be unique");
+    static_assert(are_unique<int, float>::value, "{int, float} should be unique");
+    static_assert(!are_unique<int, int>::value, "{int, int} shouldn't be unique");
+    static_assert(!are_unique<int, float, int>::value, "{int, float, int} shouldn't be unique");
+    static_assert(!are_unique<float, int, int>::value, "{float, int, int} shouldn't be unique");
+    static_assert(!are_unique<int, int, float>::value, "{int, int, float} shouldn't be unique");
+
+    // ============ find_first
+
+    static_assert(find_first<int>::index == 0, "int is not in {}");
+    static_assert(find_first<int, unsigned>::index == 0, "int is not in {unsigned}");
+    static_assert(find_first<int, unsigned, float>::index == 0, "int is not in {unsigned, float}");
+    static_assert(find_first<int, int>::index == 1, "int is 1st in {int}");
+    static_assert(find_first<int, int, float>::index == 1, "int is 1st in {int, float}");
+    static_assert(find_first<int, float, int>::index == 2, "int is 2nd in {float, int}");
+    static_assert(find_first<int, float, int, unsigned>::index == 2,
+                  "int is 2nd in {float, int, unsigned}");
+    static_assert(find_first<int, float, int, unsigned>::index == 2,
+                  "int is 2nd and 3rd in {float, int, int, unsigned}");
+    static_assert(find_first<int, float, unsigned, int>::index == 3,
+                  "int is 3rd in {float, unsigned, int}");
+    static_assert(find_first<int, int&>::index == 0, "int is not in {int&}");
+
+    // ============ find_first_convertible_to
+
+    static_assert(find_first_convertible_to<int>::index == 0, "int is not convertible to {}");
+    static_assert(find_first_convertible_to<int, unsigned*>::index == 0,
+                  "int is not convertible to {unsigned*}");
+    static_assert(find_first_convertible_to<int, unsigned*, float&>::index == 0,
+                  "int is not convertible to {unsigned, float&}");
+    static_assert(find_first_convertible_to<int, int>::index == 1, "int is convertible to {int}");
+    static_assert(find_first_convertible_to<int, unsigned, int>::index == 1,
+                  "int is convertible to 1st of {unsigned, int}");
+    static_assert(find_first_convertible_to<int, int&, float>::index == 2,
+                  "int is convertible to 2nd of {int&, float}");
+    static_assert(find_first_convertible_to<float, float*, int, unsigned>::index == 2,
+                  "float is convertible to 2nd of {float*, int, unsigned}");
+    static_assert(find_first_convertible_to<float, void, float[1], int>::index == 3,
+                  "int is 3rd convertible to {void, float[], int}");
+    static_assert(find_first_convertible_to<int&, const int&>::index == 1,
+                  "int& is convertible to {const int&}");
+    static_assert(find_first_convertible_to<const int&, int&>::index == 0,
+                  "const int& is not convertible to {int&}");
+}
+
+} // namespace android
diff --git a/media/libstagefright/foundation/tests/Utils_test.cpp b/media/libstagefright/foundation/tests/Utils_test.cpp
new file mode 100644
index 0000000..0439d5c
--- /dev/null
+++ b/media/libstagefright/foundation/tests/Utils_test.cpp
@@ -0,0 +1,280 @@
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Utils_test"
+
+#include <gtest/gtest.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AStringUtils.h>
+#include <media/stagefright/foundation/AUtils.h>
+#include <media/stagefright/Utils.h> // for FOURCC
+
+namespace android {
+
+class UtilsTest : public ::testing::Test {
+};
+
+TEST_F(UtilsTest, TestStringUtils) {
+    ASSERT_EQ(AStringUtils::Compare("Audio", "AudioExt", 5, false), 0);
+    ASSERT_EQ(AStringUtils::Compare("Audio", "audiOExt", 5, true), 0);
+    ASSERT_NE(AStringUtils::Compare("Audio", "audioExt", 5, false), 0);
+    ASSERT_NE(AStringUtils::Compare("Audio", "AudiOExt", 5, false), 0);
+
+    ASSERT_LT(AStringUtils::Compare("Audio", "AudioExt", 7, false), 0);
+    ASSERT_LT(AStringUtils::Compare("Audio", "audiOExt", 7, true), 0);
+
+    ASSERT_GT(AStringUtils::Compare("AudioExt", "Audio", 7, false), 0);
+    ASSERT_GT(AStringUtils::Compare("audiOext", "Audio", 7, true), 0);
+
+    ASSERT_LT(AStringUtils::Compare("Audio", "Video", 5, false), 0);
+    ASSERT_LT(AStringUtils::Compare("Audio1", "Audio2", 6, false), 0);
+    ASSERT_LT(AStringUtils::Compare("audio", "VIDEO", 5, true), 0);
+    ASSERT_LT(AStringUtils::Compare("audio1", "AUDIO2", 6, true), 0);
+
+    ASSERT_GT(AStringUtils::Compare("Video", "Audio", 5, false), 0);
+    ASSERT_GT(AStringUtils::Compare("Audio2", "Audio1", 6, false), 0);
+    ASSERT_GT(AStringUtils::Compare("VIDEO", "audio", 5, true), 0);
+    ASSERT_GT(AStringUtils::Compare("AUDIO2", "audio1", 6, true), 0);
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("AudioA", 5, "AudioB", 5, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 6, "AudioA", 5, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "AudioA", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "audiOB", 5, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("AudioA", 5, "audiOB", 5, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 6, "AudioA", 5, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "AudioA", 6, true));
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 6, true));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 6, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 0, true));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 0, false));
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*ring1", 5, "String8", 6, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*ring2", 5, "STRING8", 6, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring4", 5, "StRing8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring5", 5, "StrinG8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring8", 5, "String8", 7, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring8", 5, "String8", 7, true));
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*1", 4, "String8", 6, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*2", 4, "STRING8", 6, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*3", 4, "string8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*4", 4, "StRing8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*5", 4, "AString8", 7, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*6", 4, "AString8", 7, true));
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ng1", 6, "String8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng2", 6, "string8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng3", 6, "StRing8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng4", 6, "StriNg8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng5", 6, "StrinG8", 6, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ng6", 6, "STRING8", 6, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng8", 6, "AString8", 7, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng1", 6, "String16", 7, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ing9", 7, "String8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ringA", 8, "String8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng8", 6, "AString8", 7, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng1", 6, "String16", 7, true));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ing9", 7, "STRING8", 6, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ringA", 8, "String8", 6, true));
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "bestrestroom", 9, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "bestrestrestroom", 13, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*str*stro", 8, "bestrestrestroom", 14, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str*1", 9, "bestrestrestroom", 14, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "beSTReSTRoom", 9, true));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "beSTRestreSTRoom", 13, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*str*stro", 8, "bestreSTReSTRoom", 14, true));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str*1", 9, "bestreSTReSTRoom", 14, true));
+}
+
+TEST_F(UtilsTest, TestDebug) {
+#define LVL(x) (ADebug::Level)(x)
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "", LVL(5)), LVL(5));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "   \t  \n ", LVL(2)), LVL(2));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3:*deo", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
+            "video", "\t\n 3 \t\n:\t\n video \t\n", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3:*deo,2:vid*", LVL(5)), LVL(2));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
+            "avideo", "\t\n 3 \t\n:\t\n avideo \t\n,\t\n 2 \t\n:\t\n video \t\n", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
+            "audio.omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(2));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
+            "video.omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(4));
+#undef LVL
+}
+
+TEST_F(UtilsTest, TestFourCC) {
+    ASSERT_EQ(FOURCC('s', 't', 'm' , 'u'), 'stmu');
+}
+
+TEST_F(UtilsTest, TestMathTemplates) {
+    ASSERT_EQ(divRound(-10, -4), 3);
+    ASSERT_EQ(divRound(-11, -4), 3);
+    ASSERT_EQ(divRound(-12, -4), 3);
+    ASSERT_EQ(divRound(-13, -4), 3);
+    ASSERT_EQ(divRound(-14, -4), 4);
+
+    ASSERT_EQ(divRound(10, -4), -3);
+    ASSERT_EQ(divRound(11, -4), -3);
+    ASSERT_EQ(divRound(12, -4), -3);
+    ASSERT_EQ(divRound(13, -4), -3);
+    ASSERT_EQ(divRound(14, -4), -4);
+
+    ASSERT_EQ(divRound(-10, 4), -3);
+    ASSERT_EQ(divRound(-11, 4), -3);
+    ASSERT_EQ(divRound(-12, 4), -3);
+    ASSERT_EQ(divRound(-13, 4), -3);
+    ASSERT_EQ(divRound(-14, 4), -4);
+
+    ASSERT_EQ(divRound(10, 4), 3);
+    ASSERT_EQ(divRound(11, 4), 3);
+    ASSERT_EQ(divRound(12, 4), 3);
+    ASSERT_EQ(divRound(13, 4), 3);
+    ASSERT_EQ(divRound(14, 4), 4);
+
+    ASSERT_EQ(divUp(-11, -4), 3);
+    ASSERT_EQ(divUp(-12, -4), 3);
+    ASSERT_EQ(divUp(-13, -4), 4);
+
+    ASSERT_EQ(divUp(11, -4), -2);
+    ASSERT_EQ(divUp(12, -4), -3);
+    ASSERT_EQ(divUp(13, -4), -3);
+
+    ASSERT_EQ(divUp(-11, 4), -2);
+    ASSERT_EQ(divUp(-12, 4), -3);
+    ASSERT_EQ(divUp(-13, 4), -3);
+
+    ASSERT_EQ(divUp(11, 4), 3);
+    ASSERT_EQ(divUp(12, 4), 3);
+    ASSERT_EQ(divUp(13, 4), 4);
+
+    ASSERT_EQ(align(11, 4), 12);
+    ASSERT_EQ(align(12, 4), 12);
+    ASSERT_EQ(align(13, 4), 16);
+    ASSERT_EQ(align(11, 8), 16);
+    ASSERT_EQ(align(11, 2), 12);
+    ASSERT_EQ(align(11, 1), 11);
+
+    ASSERT_EQ(abs(5L), 5L);
+    ASSERT_EQ(abs(-25), 25);
+
+    ASSERT_EQ(min(5.6f, 6.0f), 5.6f);
+    ASSERT_EQ(min(6.0f, 5.6f), 5.6f);
+    ASSERT_EQ(min(-4.3, 8.6), -4.3);
+    ASSERT_EQ(min(8.6, -4.3), -4.3);
+
+    ASSERT_EQ(max(5.6f, 6.0f), 6.0f);
+    ASSERT_EQ(max(6.0f, 5.6f), 6.0f);
+    ASSERT_EQ(max(-4.3, 8.6), 8.6);
+    ASSERT_EQ(max(8.6, -4.3), 8.6);
+
+    ASSERT_FALSE(isInRange(-43, 86u, -44));
+    ASSERT_TRUE(isInRange(-43, 87u, -43));
+    ASSERT_TRUE(isInRange(-43, 88u, -1));
+    ASSERT_TRUE(isInRange(-43, 89u, 0));
+    ASSERT_TRUE(isInRange(-43, 90u, 46));
+    ASSERT_FALSE(isInRange(-43, 91u, 48));
+    ASSERT_FALSE(isInRange(-43, 92u, 50));
+
+    ASSERT_FALSE(isInRange(43, 86u, 42));
+    ASSERT_TRUE(isInRange(43, 87u, 43));
+    ASSERT_TRUE(isInRange(43, 88u, 44));
+    ASSERT_TRUE(isInRange(43, 89u, 131));
+    ASSERT_FALSE(isInRange(43, 90u, 133));
+    ASSERT_FALSE(isInRange(43, 91u, 135));
+
+    ASSERT_FALSE(isInRange(43u, 86u, 42u));
+    ASSERT_TRUE(isInRange(43u, 85u, 43u));
+    ASSERT_TRUE(isInRange(43u, 84u, 44u));
+    ASSERT_TRUE(isInRange(43u, 83u, 125u));
+    ASSERT_FALSE(isInRange(43u, 82u, 125u));
+    ASSERT_FALSE(isInRange(43u, 81u, 125u));
+
+    ASSERT_FALSE(isInRange(-43, ~0u, 43));
+    ASSERT_FALSE(isInRange(-43, ~0u, 44));
+    ASSERT_FALSE(isInRange(-43, ~0u, ~0));
+    ASSERT_FALSE(isInRange(-43, ~0u, 41));
+    ASSERT_FALSE(isInRange(-43, ~0u, 40));
+
+    ASSERT_FALSE(isInRange(43u, ~0u, 43u));
+    ASSERT_FALSE(isInRange(43u, ~0u, 41u));
+    ASSERT_FALSE(isInRange(43u, ~0u, 40u));
+    ASSERT_FALSE(isInRange(43u, ~0u, ~0u));
+
+    ASSERT_FALSE(isInRange(-43, 86u, -44, 0u));
+    ASSERT_FALSE(isInRange(-43, 86u, -44, 1u));
+    ASSERT_FALSE(isInRange(-43, 86u, -44, 2u));
+    ASSERT_FALSE(isInRange(-43, 86u, -44, ~0u));
+    ASSERT_TRUE(isInRange(-43, 87u, -43, 0u));
+    ASSERT_TRUE(isInRange(-43, 87u, -43, 1u));
+    ASSERT_TRUE(isInRange(-43, 87u, -43, 86u));
+    ASSERT_TRUE(isInRange(-43, 87u, -43, 87u));
+    ASSERT_FALSE(isInRange(-43, 87u, -43, 88u));
+    ASSERT_FALSE(isInRange(-43, 87u, -43, ~0u));
+    ASSERT_TRUE(isInRange(-43, 88u, -1, 0u));
+    ASSERT_TRUE(isInRange(-43, 88u, -1, 45u));
+    ASSERT_TRUE(isInRange(-43, 88u, -1, 46u));
+    ASSERT_FALSE(isInRange(-43, 88u, -1, 47u));
+    ASSERT_FALSE(isInRange(-43, 88u, -1, ~3u));
+    ASSERT_TRUE(isInRange(-43, 90u, 46, 0u));
+    ASSERT_TRUE(isInRange(-43, 90u, 46, 1u));
+    ASSERT_FALSE(isInRange(-43, 90u, 46, 2u));
+    ASSERT_FALSE(isInRange(-43, 91u, 48, 0u));
+    ASSERT_FALSE(isInRange(-43, 91u, 48, 2u));
+    ASSERT_FALSE(isInRange(-43, 91u, 48, ~6u));
+    ASSERT_FALSE(isInRange(-43, 92u, 50, 0u));
+    ASSERT_FALSE(isInRange(-43, 92u, 50, 1u));
+
+    ASSERT_FALSE(isInRange(43u, 86u, 42u, 0u));
+    ASSERT_FALSE(isInRange(43u, 86u, 42u, 1u));
+    ASSERT_FALSE(isInRange(43u, 86u, 42u, 2u));
+    ASSERT_FALSE(isInRange(43u, 86u, 42u, ~0u));
+    ASSERT_TRUE(isInRange(43u, 87u, 43u, 0u));
+    ASSERT_TRUE(isInRange(43u, 87u, 43u, 1u));
+    ASSERT_TRUE(isInRange(43u, 87u, 43u, 86u));
+    ASSERT_TRUE(isInRange(43u, 87u, 43u, 87u));
+    ASSERT_FALSE(isInRange(43u, 87u, 43u, 88u));
+    ASSERT_FALSE(isInRange(43u, 87u, 43u, ~0u));
+    ASSERT_TRUE(isInRange(43u, 88u, 60u, 0u));
+    ASSERT_TRUE(isInRange(43u, 88u, 60u, 70u));
+    ASSERT_TRUE(isInRange(43u, 88u, 60u, 71u));
+    ASSERT_FALSE(isInRange(43u, 88u, 60u, 72u));
+    ASSERT_FALSE(isInRange(43u, 88u, 60u, ~3u));
+    ASSERT_TRUE(isInRange(43u, 90u, 132u, 0u));
+    ASSERT_TRUE(isInRange(43u, 90u, 132u, 1u));
+    ASSERT_FALSE(isInRange(43u, 90u, 132u, 2u));
+    ASSERT_FALSE(isInRange(43u, 91u, 134u, 0u));
+    ASSERT_FALSE(isInRange(43u, 91u, 134u, 2u));
+    ASSERT_FALSE(isInRange(43u, 91u, 134u, ~6u));
+    ASSERT_FALSE(isInRange(43u, 92u, 136u, 0u));
+    ASSERT_FALSE(isInRange(43u, 92u, 136u, 1u));
+
+    ASSERT_EQ(periodicError(124, 100), 24);
+    ASSERT_EQ(periodicError(288, 100), 12);
+    ASSERT_EQ(periodicError(-345, 100), 45);
+    ASSERT_EQ(periodicError(-493, 100), 7);
+    ASSERT_EQ(periodicError(-550, 100), 50);
+    ASSERT_EQ(periodicError(-600, 100), 0);
+}
+
+} // namespace android
diff --git a/media/libstagefright/http/Android.mk b/media/libstagefright/http/Android.mk
index bc71134..9c16f40 100644
--- a/media/libstagefright/http/Android.mk
+++ b/media/libstagefright/http/Android.mk
@@ -13,17 +13,17 @@
 	$(TOP)/frameworks/base/core/jni \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright liblog libutils libbinder libstagefright_foundation \
-        libandroid_runtime \
-        libmedia
+    liblog libutils libbinder \
+    libandroid_runtime \
+    libmedia
 
 LOCAL_MODULE:= libstagefright_http_support
 
 LOCAL_CFLAGS += -Wno-multichar
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/media/libstagefright/httplive/Android.mk b/media/libstagefright/httplive/Android.mk
index f904212..1903d10 100644
--- a/media/libstagefright/httplive/Android.mk
+++ b/media/libstagefright/httplive/Android.mk
@@ -14,10 +14,11 @@
 	$(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
+        liblog \
         libbinder \
         libcrypto \
         libcutils \
diff --git a/media/libstagefright/httplive/HTTPDownloader.cpp b/media/libstagefright/httplive/HTTPDownloader.cpp
index 861b85a..793695a 100644
--- a/media/libstagefright/httplive/HTTPDownloader.cpp
+++ b/media/libstagefright/httplive/HTTPDownloader.cpp
@@ -256,10 +256,6 @@
 
         return NULL;
     }
-
-    if (curPlaylistHash != NULL) {
-        memcpy(curPlaylistHash, hash, sizeof(hash));
-    }
 #endif
 
     sp<M3UParser> playlist =
@@ -271,6 +267,13 @@
         return NULL;
     }
 
+#if defined(__ANDROID__)
+    if (curPlaylistHash != NULL) {
+
+        memcpy(curPlaylistHash, hash, sizeof(hash));
+    }
+#endif
+
     return playlist;
 }
 
diff --git a/media/libstagefright/httplive/LiveSession.cpp b/media/libstagefright/httplive/LiveSession.cpp
index 7abc019..e144942 100644
--- a/media/libstagefright/httplive/LiveSession.cpp
+++ b/media/libstagefright/httplive/LiveSession.cpp
@@ -49,11 +49,6 @@
 const int64_t LiveSession::kUpSwitchMarginUs = 5000000ll;
 const int64_t LiveSession::kResumeThresholdUs = 100000ll;
 
-// Buffer Prepare/Ready/Underflow Marks
-const int64_t LiveSession::kReadyMarkUs = 5000000ll;
-const int64_t LiveSession::kPrepareMarkUs = 1500000ll;
-const int64_t LiveSession::kUnderflowMarkUs = 1000000ll;
-
 struct LiveSession::BandwidthEstimator : public RefBase {
     BandwidthEstimator();
 
@@ -178,7 +173,7 @@
         *shortTermBps = mShortTermEstimate;
     }
 
-    int32_t minEstimate = -1, maxEstimate = -1;
+    int64_t minEstimate = -1, maxEstimate = -1;
     List<int32_t>::iterator it;
     for (it = mPrevEstimates.begin(); it != mPrevEstimates.end(); it++) {
         int32_t estimate = *it;
@@ -495,6 +490,13 @@
     return new HTTPDownloader(mHTTPService, mExtraHeaders);
 }
 
+void LiveSession::setBufferingSettings(
+        const BufferingSettings &buffering) {
+    sp<AMessage> msg = new AMessage(kWhatSetBufferingSettings, this);
+    writeToAMessage(msg, buffering);
+    msg->post();
+}
+
 void LiveSession::connectAsync(
         const char *url, const KeyedVector<String8, String8> *headers) {
     sp<AMessage> msg = new AMessage(kWhatConnect, this);
@@ -518,9 +520,10 @@
     return err;
 }
 
-status_t LiveSession::seekTo(int64_t timeUs) {
+status_t LiveSession::seekTo(int64_t timeUs, MediaPlayerSeekMode mode) {
     sp<AMessage> msg = new AMessage(kWhatSeek, this);
     msg->setInt64("timeUs", timeUs);
+    msg->setInt32("mode", mode);
 
     sp<AMessage> response;
     status_t err = msg->postAndAwaitResponse(&response);
@@ -619,6 +622,12 @@
 
 void LiveSession::onMessageReceived(const sp<AMessage> &msg) {
     switch (msg->what()) {
+        case kWhatSetBufferingSettings:
+        {
+            readFromAMessage(msg, &mBufferingSettings);
+            break;
+        }
+
         case kWhatConnect:
         {
             onConnect(msg);
@@ -829,7 +838,10 @@
                     // If switching up, require a cushion bigger than kUnderflowMark
                     // to avoid buffering immediately after the switch.
                     // (If we don't have that cushion we'd rather cancel and try again.)
-                    int64_t delayUs = switchUp ? (kUnderflowMarkUs + 1000000ll) : 0;
+                    int64_t delayUs =
+                        switchUp ?
+                            (mBufferingSettings.mRebufferingWatermarkLowMs * 1000ll + 1000000ll)
+                            : 0;
                     bool needResumeUntil = false;
                     sp<AMessage> stopParams = msg;
                     if (checkSwitchProgress(stopParams, delayUs, &needResumeUntil)) {
@@ -1175,7 +1187,7 @@
 #endif
 
 bool LiveSession::UriIsSameAsIndex(const AString &uri, int32_t i, bool newUri) {
-    ALOGI("[timed_id3] i %d UriIsSameAsIndex newUri %s, %s", i,
+    ALOGV("[timed_id3] i %d UriIsSameAsIndex newUri %s, %s", i,
             newUri ? "true" : "false",
             newUri ? mStreams[i].mNewUri.c_str() : mStreams[i].mUri.c_str());
     return i >= 0
@@ -1441,8 +1453,11 @@
 
 void LiveSession::onSeek(const sp<AMessage> &msg) {
     int64_t timeUs;
+    int32_t mode;
     CHECK(msg->findInt64("timeUs", &timeUs));
-    changeConfiguration(timeUs);
+    CHECK(msg->findInt32("mode", &mode));
+    // TODO: add "mode" to changeConfiguration.
+    changeConfiguration(timeUs/* , (MediaPlayerSeekMode)mode */);
 }
 
 status_t LiveSession::getDuration(int64_t *durationUs) const {
@@ -2185,13 +2200,16 @@
         }
 
         ++activeCount;
-        int64_t readyMark = mInPreparationPhase ? kPrepareMarkUs : kReadyMarkUs;
-        if (bufferedDurationUs > readyMark
+        int64_t readyMarkUs =
+            (mInPreparationPhase ?
+                mBufferingSettings.mInitialWatermarkMs :
+                mBufferingSettings.mRebufferingWatermarkHighMs) * 1000ll;
+        if (bufferedDurationUs > readyMarkUs
                 || mPacketSources[i]->isFinished(0)) {
             ++readyCount;
         }
         if (!mPacketSources[i]->isFinished(0)) {
-            if (bufferedDurationUs < kUnderflowMarkUs) {
+            if (bufferedDurationUs < mBufferingSettings.mRebufferingWatermarkLowMs * 1000ll) {
                 ++underflowCount;
             }
             if (bufferedDurationUs > mUpSwitchMark) {
diff --git a/media/libstagefright/httplive/LiveSession.h b/media/libstagefright/httplive/LiveSession.h
index b600eba..abf8cf0 100644
--- a/media/libstagefright/httplive/LiveSession.h
+++ b/media/libstagefright/httplive/LiveSession.h
@@ -18,6 +18,7 @@
 
 #define LIVE_SESSION_H_
 
+#include <media/BufferingSettings.h>
 #include <media/stagefright/foundation/AHandler.h>
 #include <media/mediaplayer.h>
 
@@ -72,6 +73,8 @@
             uint32_t flags,
             const sp<IMediaHTTPService> &httpService);
 
+    void setBufferingSettings(const BufferingSettings &buffering);
+
     int64_t calculateMediaTimeUs(int64_t firstTimeUs, int64_t timeUs, int32_t discontinuitySeq);
     status_t dequeueAccessUnit(StreamType stream, sp<ABuffer> *accessUnit);
 
@@ -86,7 +89,7 @@
     status_t disconnect();
 
     // Blocks until seek is complete.
-    status_t seekTo(int64_t timeUs);
+    status_t seekTo(int64_t timeUs, MediaPlayerSeekMode mode);
 
     status_t getDuration(int64_t *durationUs) const;
     size_t getTrackCount() const;
@@ -129,6 +132,7 @@
         kWhatChangeConfiguration2       = 'chC2',
         kWhatChangeConfiguration3       = 'chC3',
         kWhatPollBuffering              = 'poll',
+        kWhatSetBufferingSettings       = 'sBuS',
     };
 
     // Bandwidth Switch Mark Defaults
@@ -138,9 +142,7 @@
     static const int64_t kResumeThresholdUs;
 
     // Buffer Prepare/Ready/Underflow Marks
-    static const int64_t kReadyMarkUs;
-    static const int64_t kPrepareMarkUs;
-    static const int64_t kUnderflowMarkUs;
+    BufferingSettings mBufferingSettings;
 
     struct BandwidthEstimator;
     struct BandwidthItem {
@@ -165,7 +167,7 @@
         int64_t mLastSampleDurationUs;
         StreamItem()
             : StreamItem("") {}
-        StreamItem(const char *type)
+        explicit StreamItem(const char *type)
             : mType(type),
               mSeekMode(kSeekModeExactPosition) {
                   reset();
diff --git a/media/libstagefright/httplive/M3UParser.cpp b/media/libstagefright/httplive/M3UParser.cpp
index c04549a..71feb9a 100644
--- a/media/libstagefright/httplive/M3UParser.cpp
+++ b/media/libstagefright/httplive/M3UParser.cpp
@@ -46,7 +46,7 @@
         FLAG_HAS_URI            = 16,
     };
 
-    MediaGroup(Type type);
+    explicit MediaGroup(Type type);
 
     Type type() const;
 
@@ -498,8 +498,8 @@
     if (url[0] == '/') {
         // URL is an absolute path.
 
-        char *protocolEnd = strstr(baseURL, "//") + 2;
-        char *pathStart = strchr(protocolEnd, '/');
+        const char *protocolEnd = strstr(baseURL, "//") + 2;
+        const char *pathStart = strchr(protocolEnd, '/');
 
         if (pathStart != NULL) {
             out->setTo(baseURL, pathStart - baseURL);
diff --git a/media/libstagefright/httplive/PlaylistFetcher.cpp b/media/libstagefright/httplive/PlaylistFetcher.cpp
index 7ad7fee..00cf142 100644
--- a/media/libstagefright/httplive/PlaylistFetcher.cpp
+++ b/media/libstagefright/httplive/PlaylistFetcher.cpp
@@ -26,6 +26,7 @@
 #include "include/avc_utils.h"
 #include "include/ID3.h"
 #include "mpeg2ts/AnotherPacketSource.h"
+#include "mpeg2ts/HlsSampleDecryptor.h"
 
 #include <media/stagefright/foundation/ABitReader.h>
 #include <media/stagefright/foundation/ABuffer.h>
@@ -36,7 +37,6 @@
 
 #include <ctype.h>
 #include <inttypes.h>
-#include <openssl/aes.h>
 
 #define FLOGV(fmt, ...) ALOGV("[fetcher-%d] " fmt, mFetcherID, ##__VA_ARGS__)
 #define FSLOGV(stream, fmt, ...) ALOGV("[fetcher-%d] [%s] " fmt, mFetcherID, \
@@ -167,11 +167,15 @@
       mFirstPTSValid(false),
       mFirstTimeUs(-1ll),
       mVideoBuffer(new AnotherPacketSource(NULL)),
+      mSampleAesKeyItemChanged(false),
       mThresholdRatio(-1.0f),
       mDownloadState(new DownloadState()),
       mHasMetadata(false) {
     memset(mPlaylistHash, 0, sizeof(mPlaylistHash));
     mHTTPDownloader = mSession->getHTTPDownloader();
+
+    memset(mKeyData, 0, sizeof(mKeyData));
+    memset(mAESInitVec, 0, sizeof(mAESInitVec));
 }
 
 PlaylistFetcher::~PlaylistFetcher() {
@@ -306,6 +310,15 @@
         }
     }
 
+    // TODO: Revise this when we add support for KEYFORMAT
+    // If method has changed (e.g., -> NONE); sufficient to check at the segment boundary
+    if (mSampleAesKeyItem != NULL && first && found && method != "SAMPLE-AES") {
+        ALOGI("decryptBuffer: resetting mSampleAesKeyItem(%p) with method %s",
+                mSampleAesKeyItem.get(), method.c_str());
+        mSampleAesKeyItem = NULL;
+        mSampleAesKeyItemChanged = true;
+    }
+
     if (!found) {
         method = "NONE";
     }
@@ -313,6 +326,8 @@
 
     if (method == "NONE") {
         return OK;
+    } else if (method == "SAMPLE-AES") {
+        ALOGV("decryptBuffer: Non-Widevine SAMPLE-AES is supported now.");
     } else if (!(method == "AES-128")) {
         ALOGE("Unsupported cipher method '%s'", method.c_str());
         return ERROR_UNSUPPORTED;
@@ -345,6 +360,79 @@
         mAESKeyForURI.add(keyURI, key);
     }
 
+    if (first) {
+        // If decrypting the first block in a file, read the iv from the manifest
+        // or derive the iv from the file's sequence number.
+
+        unsigned char AESInitVec[AES_BLOCK_SIZE];
+        AString iv;
+        if (itemMeta->findString("cipher-iv", &iv)) {
+            if ((!iv.startsWith("0x") && !iv.startsWith("0X"))
+                    || iv.size() > 16 * 2 + 2) {
+                ALOGE("malformed cipher IV '%s'.", iv.c_str());
+                return ERROR_MALFORMED;
+            }
+
+            while (iv.size() < 16 * 2 + 2) {
+                iv.insert("0", 1, 2);
+            }
+
+            memset(AESInitVec, 0, sizeof(AESInitVec));
+            for (size_t i = 0; i < 16; ++i) {
+                char c1 = tolower(iv.c_str()[2 + 2 * i]);
+                char c2 = tolower(iv.c_str()[3 + 2 * i]);
+                if (!isxdigit(c1) || !isxdigit(c2)) {
+                    ALOGE("malformed cipher IV '%s'.", iv.c_str());
+                    return ERROR_MALFORMED;
+                }
+                uint8_t nibble1 = isdigit(c1) ? c1 - '0' : c1 - 'a' + 10;
+                uint8_t nibble2 = isdigit(c2) ? c2 - '0' : c2 - 'a' + 10;
+
+                AESInitVec[i] = nibble1 << 4 | nibble2;
+            }
+        } else {
+            memset(AESInitVec, 0, sizeof(AESInitVec));
+            AESInitVec[15] = mSeqNumber & 0xff;
+            AESInitVec[14] = (mSeqNumber >> 8) & 0xff;
+            AESInitVec[13] = (mSeqNumber >> 16) & 0xff;
+            AESInitVec[12] = (mSeqNumber >> 24) & 0xff;
+        }
+
+        bool newKey = memcmp(mKeyData, key->data(), AES_BLOCK_SIZE) != 0;
+        bool newInitVec = memcmp(mAESInitVec, AESInitVec, AES_BLOCK_SIZE) != 0;
+        bool newSampleAesKeyItem = newKey || newInitVec;
+        ALOGV("decryptBuffer: SAMPLE-AES newKeyItem %d/%d (Key %d initVec %d)",
+                mSampleAesKeyItemChanged, newSampleAesKeyItem, newKey, newInitVec);
+
+        if (newSampleAesKeyItem) {
+            memcpy(mKeyData, key->data(), AES_BLOCK_SIZE);
+            memcpy(mAESInitVec, AESInitVec, AES_BLOCK_SIZE);
+
+            if (method == "SAMPLE-AES") {
+                mSampleAesKeyItemChanged = true;
+
+                sp<ABuffer> keyDataBuffer = ABuffer::CreateAsCopy(mKeyData, sizeof(mKeyData));
+                sp<ABuffer> initVecBuffer = ABuffer::CreateAsCopy(mAESInitVec, sizeof(mAESInitVec));
+
+                // always allocating a new one rather than updating the old message
+                // lower layer might still have a reference to the old message
+                mSampleAesKeyItem = new AMessage();
+                mSampleAesKeyItem->setBuffer("keyData", keyDataBuffer);
+                mSampleAesKeyItem->setBuffer("initVec", initVecBuffer);
+
+                ALOGV("decryptBuffer: New SampleAesKeyItem: Key: %s  IV: %s",
+                        HlsSampleDecryptor::aesBlockToStr(mKeyData).c_str(),
+                        HlsSampleDecryptor::aesBlockToStr(mAESInitVec).c_str());
+            } // SAMPLE-AES
+        } // newSampleAesKeyItem
+    } // first
+
+    if (method == "SAMPLE-AES") {
+        ALOGV("decryptBuffer: skipping full-seg decrypt for SAMPLE-AES");
+        return OK;
+    }
+
+
     AES_KEY aes_key;
     if (AES_set_decrypt_key(key->data(), 128, &aes_key) != 0) {
         ALOGE("failed to set AES decryption key.");
@@ -361,44 +449,6 @@
         return ERROR_MALFORMED;
     }
 
-    if (first) {
-        // If decrypting the first block in a file, read the iv from the manifest
-        // or derive the iv from the file's sequence number.
-
-        AString iv;
-        if (itemMeta->findString("cipher-iv", &iv)) {
-            if ((!iv.startsWith("0x") && !iv.startsWith("0X"))
-                    || iv.size() > 16 * 2 + 2) {
-                ALOGE("malformed cipher IV '%s'.", iv.c_str());
-                return ERROR_MALFORMED;
-            }
-
-            while (iv.size() < 16 * 2 + 2) {
-                iv.insert("0", 1, 2);
-            }
-
-            memset(mAESInitVec, 0, sizeof(mAESInitVec));
-            for (size_t i = 0; i < 16; ++i) {
-                char c1 = tolower(iv.c_str()[2 + 2 * i]);
-                char c2 = tolower(iv.c_str()[3 + 2 * i]);
-                if (!isxdigit(c1) || !isxdigit(c2)) {
-                    ALOGE("malformed cipher IV '%s'.", iv.c_str());
-                    return ERROR_MALFORMED;
-                }
-                uint8_t nibble1 = isdigit(c1) ? c1 - '0' : c1 - 'a' + 10;
-                uint8_t nibble2 = isdigit(c2) ? c2 - '0' : c2 - 'a' + 10;
-
-                mAESInitVec[i] = nibble1 << 4 | nibble2;
-            }
-        } else {
-            memset(mAESInitVec, 0, sizeof(mAESInitVec));
-            mAESInitVec[15] = mSeqNumber & 0xff;
-            mAESInitVec[14] = (mSeqNumber >> 8) & 0xff;
-            mAESInitVec[13] = (mSeqNumber >> 16) & 0xff;
-            mAESInitVec[12] = (mSeqNumber >> 24) & 0xff;
-        }
-    }
-
     AES_cbc_encrypt(
             buffer->data(), buffer->data(), buffer->size(),
             &aes_key, mAESInitVec, AES_DECRYPT);
@@ -409,7 +459,7 @@
 status_t PlaylistFetcher::checkDecryptPadding(const sp<ABuffer> &buffer) {
     AString method;
     CHECK(buffer->meta()->findString("cipher-method", &method));
-    if (method == "NONE") {
+    if (method == "NONE" || method == "SAMPLE-AES") {
         return OK;
     }
 
@@ -956,6 +1006,38 @@
     return false;
 }
 
+void PlaylistFetcher::initSeqNumberForLiveStream(
+        int32_t &firstSeqNumberInPlaylist,
+        int32_t &lastSeqNumberInPlaylist) {
+    // start at least 3 target durations from the end.
+    int64_t timeFromEnd = 0;
+    size_t index = mPlaylist->size();
+    sp<AMessage> itemMeta;
+    int64_t itemDurationUs;
+    int32_t targetDuration;
+    if (mPlaylist->meta()->findInt32("target-duration", &targetDuration)) {
+        do {
+            --index;
+            if (!mPlaylist->itemAt(index, NULL /* uri */, &itemMeta)
+                    || !itemMeta->findInt64("durationUs", &itemDurationUs)) {
+                ALOGW("item or itemDurationUs missing");
+                mSeqNumber = lastSeqNumberInPlaylist - 3;
+                break;
+            }
+
+            timeFromEnd += itemDurationUs;
+            mSeqNumber = firstSeqNumberInPlaylist + index;
+        } while (timeFromEnd < targetDuration * 3E6 && index > 0);
+    } else {
+        ALOGW("target-duration missing");
+        mSeqNumber = lastSeqNumberInPlaylist - 3;
+    }
+
+    if (mSeqNumber < firstSeqNumberInPlaylist) {
+        mSeqNumber = firstSeqNumberInPlaylist;
+    }
+}
+
 bool PlaylistFetcher::initDownloadState(
         AString &uri,
         sp<AMessage> &itemMeta,
@@ -982,11 +1064,8 @@
 
         if (mSegmentStartTimeUs < 0) {
             if (!mPlaylist->isComplete() && !mPlaylist->isEvent()) {
-                // If this is a live session, start 3 segments from the end on connect
-                mSeqNumber = lastSeqNumberInPlaylist - 3;
-                if (mSeqNumber < firstSeqNumberInPlaylist) {
-                    mSeqNumber = firstSeqNumberInPlaylist;
-                }
+                // this is a live session
+                initSeqNumberForLiveStream(firstSeqNumberInPlaylist, lastSeqNumberInPlaylist);
             } else {
                 // When seeking mSegmentStartTimeUs is unavailable (< 0), we
                 // use mStartTimeUs (client supplied timestamp) to determine both start segment
@@ -1627,6 +1706,11 @@
         mNextPTSTimeUs = -1ll;
     }
 
+    if (mSampleAesKeyItemChanged) {
+        mTSParser->signalNewSampleAesKey(mSampleAesKeyItem);
+        mSampleAesKeyItemChanged = false;
+    }
+
     size_t offset = 0;
     while (offset + 188 <= buffer->size()) {
         status_t err = mTSParser->feedTSPacket(buffer->data() + offset, 188);
@@ -2009,10 +2093,24 @@
         }
     }
 
+    sp<HlsSampleDecryptor> sampleDecryptor = NULL;
+    if (mSampleAesKeyItem != NULL) {
+        ALOGV("extractAndQueueAccessUnits[%d] SampleAesKeyItem: Key: %s  IV: %s",
+                mSeqNumber,
+                HlsSampleDecryptor::aesBlockToStr(mKeyData).c_str(),
+                HlsSampleDecryptor::aesBlockToStr(mAESInitVec).c_str());
+
+        sampleDecryptor = new HlsSampleDecryptor(mSampleAesKeyItem);
+    }
+
+    int frameId = 0;
+
     size_t offset = 0;
     while (offset < buffer->size()) {
         const uint8_t *adtsHeader = buffer->data() + offset;
         CHECK_LT(offset + 5, buffer->size());
+        // non-const pointer for decryption if needed
+        uint8_t *adtsFrame = buffer->data() + offset;
 
         unsigned aac_frame_length =
             ((adtsHeader[3] & 3) << 11)
@@ -2070,6 +2168,18 @@
             }
         }
 
+        if (sampleDecryptor != NULL) {
+            bool protection_absent = (adtsHeader[1] & 0x1);
+            size_t headerSize = protection_absent ? 7 : 9;
+            if (frameId == 0) {
+                ALOGV("extractAndQueueAAC[%d] protection_absent %d (%02x) headerSize %zu",
+                        mSeqNumber, protection_absent, adtsHeader[1], headerSize);
+            }
+
+            sampleDecryptor->processAAC(headerSize, adtsFrame, aac_frame_length);
+        }
+        frameId++;
+
         sp<ABuffer> unit = new ABuffer(aac_frame_length);
         memcpy(unit->data(), adtsHeader, aac_frame_length);
 
diff --git a/media/libstagefright/httplive/PlaylistFetcher.h b/media/libstagefright/httplive/PlaylistFetcher.h
index c8ca457..d7db54a 100644
--- a/media/libstagefright/httplive/PlaylistFetcher.h
+++ b/media/libstagefright/httplive/PlaylistFetcher.h
@@ -19,6 +19,7 @@
 #define PLAYLIST_FETCHER_H_
 
 #include <media/stagefright/foundation/AHandler.h>
+#include <openssl/aes.h>
 
 #include "mpeg2ts/ATSParser.h"
 #include "LiveSession.h"
@@ -175,7 +176,10 @@
     // Stores the initialization vector to decrypt the next block of cipher text, which can
     // either be derived from the sequence number, read from the manifest, or copied from
     // the last block of cipher text (cipher-block chaining).
-    unsigned char mAESInitVec[16];
+    unsigned char mAESInitVec[AES_BLOCK_SIZE];
+    unsigned char mKeyData[AES_BLOCK_SIZE];
+    bool mSampleAesKeyItemChanged;
+    sp<AMessage> mSampleAesKeyItem;
 
     Mutex mThresholdLock;
     float mThresholdRatio;
@@ -218,6 +222,9 @@
     void onStop(const sp<AMessage> &msg);
     void onMonitorQueue();
     void onDownloadNext();
+    void initSeqNumberForLiveStream(
+            int32_t &firstSeqNumberInPlaylist,
+            int32_t &lastSeqNumberInPlaylist);
     bool initDownloadState(
             AString &uri,
             sp<AMessage> &itemMeta,
diff --git a/media/libstagefright/id3/Android.mk b/media/libstagefright/id3/Android.mk
index 2cfba44..827703e 100644
--- a/media/libstagefright/id3/Android.mk
+++ b/media/libstagefright/id3/Android.mk
@@ -5,8 +5,10 @@
 	ID3.cpp
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
+
+LOCAL_SHARED_LIBRARIES := libmedia
 
 LOCAL_MODULE := libstagefright_id3
 
@@ -20,7 +22,6 @@
 	testid3.cpp
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_SHARED_LIBRARIES := \
 	libstagefright libutils liblog libbinder libstagefright_foundation
diff --git a/media/libstagefright/id3/ID3.cpp b/media/libstagefright/id3/ID3.cpp
index c21097b..58d8b13 100644
--- a/media/libstagefright/id3/ID3.cpp
+++ b/media/libstagefright/id3/ID3.cpp
@@ -526,7 +526,7 @@
         if (mOffset == 126 || mOffset == 127) {
             // Special treatment for the track number and genre.
             char tmp[16];
-            sprintf(tmp, "%d", (int)*frameData);
+            snprintf(tmp, sizeof(tmp), "%d", (int)*frameData);
 
             id->setTo(tmp);
             return;
@@ -543,6 +543,9 @@
     }
     size_t n = mFrameSize - getHeaderLength() - 1;
     if (otherdata) {
+        if (n < 5) {
+            return;
+        }
         // skip past the encoding, language, and the 0 separator
         frameData += 4;
         int32_t i = n - 4;
diff --git a/media/libstagefright/id3/testid3.cpp b/media/libstagefright/id3/testid3.cpp
index b2f4188..442a3ff 100644
--- a/media/libstagefright/id3/testid3.cpp
+++ b/media/libstagefright/id3/testid3.cpp
@@ -154,8 +154,6 @@
 int main(int argc, char **argv) {
     android::ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
     for (int i = 1; i < argc; ++i) {
         scan(argv[i]);
     }
diff --git a/include/media/stagefright/AACWriter.h b/media/libstagefright/include/AACWriter.h
similarity index 100%
rename from include/media/stagefright/AACWriter.h
rename to media/libstagefright/include/AACWriter.h
diff --git a/media/libstagefright/include/ACodec.h b/media/libstagefright/include/ACodec.h
new file mode 100644
index 0000000..22b8657
--- /dev/null
+++ b/media/libstagefright/include/ACodec.h
@@ -0,0 +1,583 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_CODEC_H_
+
+#define A_CODEC_H_
+
+#include <stdint.h>
+#include <android/native_window.h>
+#include <media/hardware/MetadataBufferType.h>
+#include <media/IOMX.h>
+#include <media/stagefright/foundation/AHierarchicalStateMachine.h>
+#include <media/stagefright/CodecBase.h>
+#include <media/stagefright/FrameRenderTracker.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/SkipCutBuffer.h>
+#include <utils/NativeHandle.h>
+#include <OMX_Audio.h>
+#include <hardware/gralloc.h>
+
+#define TRACK_BUFFER_TIMING     0
+
+namespace android {
+
+struct ABuffer;
+class ACodecBufferChannel;
+class MediaCodecBuffer;
+class MemoryDealer;
+struct DescribeColorFormat2Params;
+struct DataConverter;
+
+// Treble shared memory
+namespace hidl {
+namespace allocator {
+namespace V1_0 {
+struct IAllocator;
+} // V1_0
+} // allocator
+namespace memory {
+namespace V1_0 {
+struct IMemory;
+} // V1_0
+} // memory
+} // hidl
+
+typedef hidl::allocator::V1_0::IAllocator TAllocator;
+typedef hidl::memory::V1_0::IMemory TMemory;
+
+struct ACodec : public AHierarchicalStateMachine, public CodecBase {
+    ACodec();
+
+    void initiateSetup(const sp<AMessage> &msg);
+
+    virtual std::shared_ptr<BufferChannelBase> getBufferChannel() override;
+    virtual void initiateAllocateComponent(const sp<AMessage> &msg);
+    virtual void initiateConfigureComponent(const sp<AMessage> &msg);
+    virtual void initiateCreateInputSurface();
+    virtual void initiateSetInputSurface(const sp<PersistentSurface> &surface);
+    virtual void initiateStart();
+    virtual void initiateShutdown(bool keepComponentAllocated = false);
+
+    virtual status_t queryCapabilities(
+            const AString &name, const AString &mime, bool isEncoder,
+            sp<MediaCodecInfo::Capabilities> *caps);
+
+    virtual status_t setSurface(const sp<Surface> &surface);
+
+    virtual void signalFlush();
+    virtual void signalResume();
+
+    virtual void signalSetParameters(const sp<AMessage> &msg);
+    virtual void signalEndOfInputStream();
+    virtual void signalRequestIDRFrame();
+
+    // AHierarchicalStateMachine implements the message handling
+    virtual void onMessageReceived(const sp<AMessage> &msg) {
+        handleMessage(msg);
+    }
+
+    // Returns 0 if configuration is not supported.  NOTE: this is treated by
+    // some OMX components as auto level, and by others as invalid level.
+    static int /* OMX_VIDEO_AVCLEVELTYPE */ getAVCLevelFor(
+            int width, int height, int rate, int bitrate,
+            OMX_VIDEO_AVCPROFILETYPE profile = OMX_VIDEO_AVCProfileBaseline);
+
+    // Quirk still supported, even though deprecated
+    enum Quirks {
+        kRequiresAllocateBufferOnInputPorts   = 1,
+        kRequiresAllocateBufferOnOutputPorts  = 2,
+    };
+
+    static status_t getOMXChannelMapping(size_t numChannels, OMX_AUDIO_CHANNELTYPE map[]);
+
+    // Save the flag.
+    void setTrebleFlag(bool trebleFlag);
+    // Return the saved flag.
+    bool getTrebleFlag() const;
+
+protected:
+    virtual ~ACodec();
+
+private:
+    struct BaseState;
+    struct UninitializedState;
+    struct LoadedState;
+    struct LoadedToIdleState;
+    struct IdleToExecutingState;
+    struct ExecutingState;
+    struct OutputPortSettingsChangedState;
+    struct ExecutingToIdleState;
+    struct IdleToLoadedState;
+    struct FlushingState;
+    struct DeathNotifier;
+
+    enum {
+        kWhatSetup                   = 'setu',
+        kWhatOMXMessage              = 'omx ',
+        // same as kWhatOMXMessage - but only used with
+        // handleMessage during OMX message-list handling
+        kWhatOMXMessageItem          = 'omxI',
+        kWhatOMXMessageList          = 'omxL',
+        kWhatInputBufferFilled       = 'inpF',
+        kWhatOutputBufferDrained     = 'outD',
+        kWhatShutdown                = 'shut',
+        kWhatFlush                   = 'flus',
+        kWhatResume                  = 'resm',
+        kWhatDrainDeferredMessages   = 'drai',
+        kWhatAllocateComponent       = 'allo',
+        kWhatConfigureComponent      = 'conf',
+        kWhatSetSurface              = 'setS',
+        kWhatCreateInputSurface      = 'cisf',
+        kWhatSetInputSurface         = 'sisf',
+        kWhatSignalEndOfInputStream  = 'eois',
+        kWhatStart                   = 'star',
+        kWhatRequestIDRFrame         = 'ridr',
+        kWhatSetParameters           = 'setP',
+        kWhatSubmitOutputMetadataBufferIfEOS = 'subm',
+        kWhatOMXDied                 = 'OMXd',
+        kWhatReleaseCodecInstance    = 'relC',
+        kWhatForceStateTransition    = 'fstt',
+    };
+
+    enum {
+        kPortIndexInput  = 0,
+        kPortIndexOutput = 1
+    };
+
+    enum {
+        kFlagIsSecure                                 = 1,
+        kFlagPushBlankBuffersToNativeWindowOnShutdown = 2,
+        kFlagIsGrallocUsageProtected                  = 4,
+    };
+
+    enum {
+        kVideoGrallocUsage = (GRALLOC_USAGE_HW_TEXTURE
+                            | GRALLOC_USAGE_HW_COMPOSER
+                            | GRALLOC_USAGE_EXTERNAL_DISP),
+    };
+
+    struct BufferInfo {
+        enum Status {
+            OWNED_BY_US,
+            OWNED_BY_COMPONENT,
+            OWNED_BY_UPSTREAM,
+            OWNED_BY_DOWNSTREAM,
+            OWNED_BY_NATIVE_WINDOW,
+            UNRECOGNIZED,            // not a tracked buffer
+        };
+
+        static inline Status getSafeStatus(BufferInfo *info) {
+            return info == NULL ? UNRECOGNIZED : info->mStatus;
+        }
+
+        IOMX::buffer_id mBufferID;
+        Status mStatus;
+        unsigned mDequeuedAt;
+
+        sp<MediaCodecBuffer> mData;  // the client's buffer; if not using data conversion, this is
+                                     // the codec buffer; otherwise, it is allocated separately
+        sp<RefBase> mMemRef;         // and a reference to the IMemory, so it does not go away
+        sp<MediaCodecBuffer> mCodecData;  // the codec's buffer
+        sp<RefBase> mCodecRef;            // and a reference to the IMemory
+
+        sp<GraphicBuffer> mGraphicBuffer;
+        bool mNewGraphicBuffer;
+        int mFenceFd;
+        FrameRenderTracker::Info *mRenderInfo;
+
+        // The following field and 4 methods are used for debugging only
+        bool mIsReadFence;
+        // Store |fenceFd| and set read/write flag. Log error, if there is already a fence stored.
+        void setReadFence(int fenceFd, const char *dbg);
+        void setWriteFence(int fenceFd, const char *dbg);
+        // Log error, if the current fence is not a read/write fence.
+        void checkReadFence(const char *dbg);
+        void checkWriteFence(const char *dbg);
+    };
+
+    static const char *_asString(BufferInfo::Status s);
+    void dumpBuffers(OMX_U32 portIndex);
+
+    // If |fd| is non-negative, waits for fence with |fd| and logs an error if it fails. Returns
+    // the error code or OK on success. If |fd| is negative, it returns OK
+    status_t waitForFence(int fd, const char *dbg);
+
+#if TRACK_BUFFER_TIMING
+    struct BufferStats {
+        int64_t mEmptyBufferTimeUs;
+        int64_t mFillBufferDoneTimeUs;
+    };
+
+    KeyedVector<int64_t, BufferStats> mBufferStats;
+#endif
+
+    sp<UninitializedState> mUninitializedState;
+    sp<LoadedState> mLoadedState;
+    sp<LoadedToIdleState> mLoadedToIdleState;
+    sp<IdleToExecutingState> mIdleToExecutingState;
+    sp<ExecutingState> mExecutingState;
+    sp<OutputPortSettingsChangedState> mOutputPortSettingsChangedState;
+    sp<ExecutingToIdleState> mExecutingToIdleState;
+    sp<IdleToLoadedState> mIdleToLoadedState;
+    sp<FlushingState> mFlushingState;
+    sp<SkipCutBuffer> mSkipCutBuffer;
+    int32_t mSampleRate;
+
+    AString mComponentName;
+    uint32_t mFlags;
+    sp<IOMX> mOMX;
+    sp<IOMXNode> mOMXNode;
+    int32_t mNodeGeneration;
+    bool mTrebleFlag;
+    sp<TAllocator> mAllocator[2];
+    sp<MemoryDealer> mDealer[2];
+
+    bool mUsingNativeWindow;
+    sp<ANativeWindow> mNativeWindow;
+    int mNativeWindowUsageBits;
+    android_native_rect_t mLastNativeWindowCrop;
+    int32_t mLastNativeWindowDataSpace;
+    sp<AMessage> mConfigFormat;
+    sp<AMessage> mInputFormat;
+    sp<AMessage> mOutputFormat;
+
+    // Initial output format + configuration params that is reused as the base for all subsequent
+    // format updates. This will equal to mOutputFormat until the first actual frame is received.
+    sp<AMessage> mBaseOutputFormat;
+
+    FrameRenderTracker mRenderTracker; // render information for buffers rendered by ACodec
+    Vector<BufferInfo> mBuffers[2];
+    bool mPortEOS[2];
+    status_t mInputEOSResult;
+
+    List<sp<AMessage> > mDeferredQueue;
+
+    sp<AMessage> mLastOutputFormat;
+    bool mIsVideo;
+    bool mIsEncoder;
+    bool mFatalError;
+    bool mShutdownInProgress;
+    bool mExplicitShutdown;
+    bool mIsLegacyVP9Decoder;
+
+    // If "mKeepComponentAllocated" we only transition back to Loaded state
+    // and do not release the component instance.
+    bool mKeepComponentAllocated;
+
+    int32_t mEncoderDelay;
+    int32_t mEncoderPadding;
+    int32_t mRotationDegrees;
+
+    bool mChannelMaskPresent;
+    int32_t mChannelMask;
+    unsigned mDequeueCounter;
+    IOMX::PortMode mPortMode[2];
+    int32_t mMetadataBuffersToSubmit;
+    size_t mNumUndequeuedBuffers;
+    sp<DataConverter> mConverter[2];
+
+    sp<IGraphicBufferSource> mGraphicBufferSource;
+    int64_t mRepeatFrameDelayUs;
+    int64_t mMaxPtsGapUs;
+    float mMaxFps;
+    double mFps;
+    double mCaptureFps;
+    bool mCreateInputBuffersSuspended;
+    uint32_t mLatency;
+
+    bool mTunneled;
+
+    OMX_INDEXTYPE mDescribeColorAspectsIndex;
+    OMX_INDEXTYPE mDescribeHDRStaticInfoIndex;
+
+    std::shared_ptr<ACodecBufferChannel> mBufferChannel;
+
+    int32_t mStateGeneration;
+
+    enum {
+        kExtensionsUnchecked,
+        kExtensionsNone,
+        kExtensionsExist,
+    } mVendorExtensionsStatus;
+
+    status_t setCyclicIntraMacroblockRefresh(const sp<AMessage> &msg, int32_t mode);
+    status_t allocateBuffersOnPort(OMX_U32 portIndex);
+    status_t freeBuffersOnPort(OMX_U32 portIndex);
+    status_t freeBuffer(OMX_U32 portIndex, size_t i);
+
+    status_t handleSetSurface(const sp<Surface> &surface);
+    status_t setPortMode(int32_t portIndex, IOMX::PortMode mode);
+    status_t setupNativeWindowSizeFormatAndUsage(
+            ANativeWindow *nativeWindow /* nonnull */, int *finalUsage /* nonnull */,
+            bool reconnect);
+
+    status_t configureOutputBuffersFromNativeWindow(
+            OMX_U32 *nBufferCount, OMX_U32 *nBufferSize,
+            OMX_U32 *nMinUndequeuedBuffers, bool preregister);
+    status_t allocateOutputMetadataBuffers();
+    status_t submitOutputMetadataBuffer();
+    void signalSubmitOutputMetadataBufferIfEOS_workaround();
+    status_t allocateOutputBuffersFromNativeWindow();
+    status_t cancelBufferToNativeWindow(BufferInfo *info);
+    status_t freeOutputBuffersNotOwnedByComponent();
+    BufferInfo *dequeueBufferFromNativeWindow();
+
+    inline bool storingMetadataInDecodedBuffers() {
+        return (mPortMode[kPortIndexOutput] == IOMX::kPortModeDynamicANWBuffer) && !mIsEncoder;
+    }
+
+    inline bool usingSecureBufferOnEncoderOutput() {
+        return (mPortMode[kPortIndexOutput] == IOMX::kPortModePresetSecureBuffer) && mIsEncoder;
+    }
+
+    BufferInfo *findBufferByID(
+            uint32_t portIndex, IOMX::buffer_id bufferID,
+            ssize_t *index = NULL);
+
+    status_t fillBuffer(BufferInfo *info);
+
+    status_t setComponentRole(bool isEncoder, const char *mime);
+
+    status_t configureCodec(const char *mime, const sp<AMessage> &msg);
+
+    status_t configureTunneledVideoPlayback(int32_t audioHwSync,
+            const sp<ANativeWindow> &nativeWindow);
+
+    status_t setVideoPortFormatType(
+            OMX_U32 portIndex,
+            OMX_VIDEO_CODINGTYPE compressionFormat,
+            OMX_COLOR_FORMATTYPE colorFormat,
+            bool usingNativeBuffers = false);
+
+    status_t setSupportedOutputFormat(bool getLegacyFlexibleFormat);
+
+    status_t setupVideoDecoder(
+            const char *mime, const sp<AMessage> &msg, bool usingNativeBuffers, bool haveSwRenderer,
+            sp<AMessage> &outputformat);
+
+    status_t setupVideoEncoder(
+            const char *mime, const sp<AMessage> &msg,
+            sp<AMessage> &outputformat, sp<AMessage> &inputformat);
+
+    status_t setVideoFormatOnPort(
+            OMX_U32 portIndex,
+            int32_t width, int32_t height,
+            OMX_VIDEO_CODINGTYPE compressionFormat, float frameRate = -1.0);
+
+    // sets |portIndex| port buffer numbers to be |bufferNum|. NOTE: Component could reject
+    // this setting if the |bufferNum| is less than the minimum buffer num of the port.
+    status_t setPortBufferNum(OMX_U32 portIndex, int bufferNum);
+
+    // gets index or sets it to 0 on error. Returns error from codec.
+    status_t initDescribeColorAspectsIndex();
+
+    // sets |params|. If |readBack| is true, it re-gets them afterwards if set succeeded.
+    // returns the codec error.
+    status_t setCodecColorAspects(DescribeColorAspectsParams &params, bool readBack = false);
+
+    // gets |params|; returns the codec error. |param| should not change on error.
+    status_t getCodecColorAspects(DescribeColorAspectsParams &params);
+
+    // gets dataspace guidance from codec and platform. |params| should be set up with the color
+    // aspects to use. If |tryCodec| is true, the codec is queried first. If it succeeds, we
+    // return OK. Otherwise, we fall back to the platform guidance and return the codec error;
+    // though, we return OK if the codec failed with UNSUPPORTED, as codec guidance is optional.
+    status_t getDataSpace(
+            DescribeColorAspectsParams &params, android_dataspace *dataSpace /* nonnull */,
+            bool tryCodec);
+
+    // sets color aspects for the encoder for certain |width/height| based on |configFormat|, and
+    // set resulting color config into |outputFormat|. If |usingNativeWindow| is true, we use
+    // video defaults if config is unspecified. Returns error from the codec.
+    status_t setColorAspectsForVideoDecoder(
+            int32_t width, int32_t height, bool usingNativeWindow,
+            const sp<AMessage> &configFormat, sp<AMessage> &outputFormat);
+
+    // gets color aspects for the encoder for certain |width/height| based on |configFormat|, and
+    // set resulting color config into |outputFormat|. If |dataSpace| is non-null, it requests
+    // dataspace guidance from the codec and platform and sets it into |dataSpace|. Returns the
+    // error from the codec.
+    status_t getColorAspectsAndDataSpaceForVideoDecoder(
+            int32_t width, int32_t height, const sp<AMessage> &configFormat,
+            sp<AMessage> &outputFormat, android_dataspace *dataSpace);
+
+    // sets color aspects for the video encoder assuming bytebuffer mode for certain |configFormat|
+    // and sets resulting color config into |outputFormat|. For mediarecorder, also set dataspace
+    // into |inputFormat|. Returns the error from the codec.
+    status_t setColorAspectsForVideoEncoder(
+            const sp<AMessage> &configFormat,
+            sp<AMessage> &outputFormat, sp<AMessage> &inputFormat);
+
+    // sets color aspects for the video encoder in surface mode. This basically sets the default
+    // video values for unspecified aspects and sets the dataspace to use in the input format.
+    // Also sets the dataspace into |dataSpace|.
+    // Returns any codec errors during this configuration, except for optional steps.
+    status_t setInitialColorAspectsForVideoEncoderSurfaceAndGetDataSpace(
+            android_dataspace *dataSpace /* nonnull */);
+
+    // gets color aspects for the video encoder input port and sets them into the |format|.
+    // Returns any codec errors.
+    status_t getInputColorAspectsForVideoEncoder(sp<AMessage> &format);
+
+    // updates the encoder output format with |aspects| defaulting to |dataSpace| for
+    // unspecified values.
+    void onDataSpaceChanged(android_dataspace dataSpace, const ColorAspects &aspects);
+
+    // gets index or sets it to 0 on error. Returns error from codec.
+    status_t initDescribeHDRStaticInfoIndex();
+
+    // sets HDR static metadata for the video encoder/decoder based on |configFormat|, and
+    // sets resulting HDRStaticInfo config into |outputFormat|. Returns error from the codec.
+    status_t setHDRStaticInfoForVideoCodec(
+            OMX_U32 portIndex, const sp<AMessage> &configFormat, sp<AMessage> &outputFormat);
+
+    // sets |params|. Returns the codec error.
+    status_t setHDRStaticInfo(const DescribeHDRStaticInfoParams &params);
+
+    // gets |params|. Returns the codec error.
+    status_t getHDRStaticInfo(DescribeHDRStaticInfoParams &params);
+
+    // gets HDR static information for the video encoder/decoder port and sets them into |format|.
+    status_t getHDRStaticInfoForVideoCodec(OMX_U32 portIndex, sp<AMessage> &format);
+
+    typedef struct drcParams {
+        int32_t drcCut;
+        int32_t drcBoost;
+        int32_t heavyCompression;
+        int32_t targetRefLevel;
+        int32_t encodedTargetLevel;
+    } drcParams_t;
+
+    status_t setupAACCodec(
+            bool encoder,
+            int32_t numChannels, int32_t sampleRate, int32_t bitRate,
+            int32_t aacProfile, bool isADTS, int32_t sbrMode,
+            int32_t maxOutputChannelCount, const drcParams_t& drc,
+            int32_t pcmLimiterEnable);
+
+    status_t setupAC3Codec(bool encoder, int32_t numChannels, int32_t sampleRate);
+
+    status_t setupEAC3Codec(bool encoder, int32_t numChannels, int32_t sampleRate);
+
+    status_t selectAudioPortFormat(
+            OMX_U32 portIndex, OMX_AUDIO_CODINGTYPE desiredFormat);
+
+    status_t setupAMRCodec(bool encoder, bool isWAMR, int32_t bitRate);
+    status_t setupG711Codec(bool encoder, int32_t sampleRate, int32_t numChannels);
+
+    status_t setupFlacCodec(
+            bool encoder, int32_t numChannels, int32_t sampleRate, int32_t compressionLevel);
+
+    status_t setupRawAudioFormat(
+            OMX_U32 portIndex, int32_t sampleRate, int32_t numChannels,
+            AudioEncoding encoding = kAudioEncodingPcm16bit);
+
+    status_t setPriority(int32_t priority);
+    status_t setLatency(uint32_t latency);
+    status_t getLatency(uint32_t *latency);
+    status_t setOperatingRate(float rateFloat, bool isVideo);
+    status_t getIntraRefreshPeriod(uint32_t *intraRefreshPeriod);
+    status_t setIntraRefreshPeriod(uint32_t intraRefreshPeriod, bool inConfigure);
+
+    // Configures temporal layering based on |msg|. |inConfigure| shall be true iff this is called
+    // during configure() call. on success the configured layering is set in |outputFormat|. If
+    // |outputFormat| is mOutputFormat, it is copied to trigger an output format changed event.
+    status_t configureTemporalLayers(
+            const sp<AMessage> &msg, bool inConfigure, sp<AMessage> &outputFormat);
+
+    status_t setMinBufferSize(OMX_U32 portIndex, size_t size);
+
+    status_t setupMPEG4EncoderParameters(const sp<AMessage> &msg);
+    status_t setupH263EncoderParameters(const sp<AMessage> &msg);
+    status_t setupAVCEncoderParameters(const sp<AMessage> &msg);
+    status_t setupHEVCEncoderParameters(const sp<AMessage> &msg);
+    status_t setupVPXEncoderParameters(const sp<AMessage> &msg, sp<AMessage> &outputFormat);
+
+    status_t verifySupportForProfileAndLevel(int32_t profile, int32_t level);
+
+    status_t configureBitrate(
+            int32_t bitrate, OMX_VIDEO_CONTROLRATETYPE bitrateMode);
+    void configureEncoderLatency(const sp<AMessage> &msg);
+
+    status_t setupErrorCorrectionParameters();
+
+    // Returns true iff all buffers on the given port have status
+    // OWNED_BY_US or OWNED_BY_NATIVE_WINDOW.
+    bool allYourBuffersAreBelongToUs(OMX_U32 portIndex);
+
+    bool allYourBuffersAreBelongToUs();
+
+    void waitUntilAllPossibleNativeWindowBuffersAreReturnedToUs();
+
+    size_t countBuffersOwnedByComponent(OMX_U32 portIndex) const;
+    size_t countBuffersOwnedByNativeWindow() const;
+
+    void deferMessage(const sp<AMessage> &msg);
+    void processDeferredMessages();
+
+    void onFrameRendered(int64_t mediaTimeUs, nsecs_t systemNano);
+    // called when we have dequeued a buffer |buf| from the native window to track render info.
+    // |fenceFd| is the dequeue fence, and |info| points to the buffer info where this buffer is
+    // stored.
+    void updateRenderInfoForDequeuedBuffer(
+            ANativeWindowBuffer *buf, int fenceFd, BufferInfo *info);
+
+    // Checks to see if any frames have rendered up until |until|, and to notify client
+    // (MediaCodec) of rendered frames up-until the frame pointed to by |until| or the first
+    // unrendered frame. These frames are removed from the render queue.
+    // If |dropIncomplete| is true, unrendered frames up-until |until| will be dropped from the
+    // queue, allowing all rendered framed up till then to be notified of.
+    // (This will effectively clear the render queue up-until (and including) |until|.)
+    // If |until| is NULL, or is not in the rendered queue, this method will check all frames.
+    void notifyOfRenderedFrames(
+            bool dropIncomplete = false, FrameRenderTracker::Info *until = NULL);
+
+    // Pass |expectedFormat| to print a warning if the format differs from it.
+    // Using sp<> instead of const sp<>& because expectedFormat is likely the current mOutputFormat
+    // which will get updated inside.
+    void onOutputFormatChanged(sp<const AMessage> expectedFormat = NULL);
+    void addKeyFormatChangesToRenderBufferNotification(sp<AMessage> &notify);
+    void sendFormatChange();
+
+    status_t getPortFormat(OMX_U32 portIndex, sp<AMessage> &notify);
+
+    void signalError(
+            OMX_ERRORTYPE error = OMX_ErrorUndefined,
+            status_t internalError = UNKNOWN_ERROR);
+
+    status_t requestIDRFrame();
+    status_t setParameters(const sp<AMessage> &params);
+
+    // set vendor extension parameters specified in params that are supported by the codec
+    status_t setVendorParameters(const sp<AMessage> &params);
+
+    // get vendor extension parameters supported by the codec for a specific port and add it to
+    // |format|
+    status_t getVendorParameters(OMX_U32 portIndex, sp<AMessage> &format);
+
+    // Send EOS on input stream.
+    void onSignalEndOfInputStream();
+
+    // Force EXEC->IDLE->LOADED shutdown sequence if not stale.
+    void forceStateTransition(int generation);
+
+    DISALLOW_EVIL_CONSTRUCTORS(ACodec);
+};
+
+}  // namespace android
+
+#endif  // A_CODEC_H_
diff --git a/media/libstagefright/include/ACodecBufferChannel.h b/media/libstagefright/include/ACodecBufferChannel.h
new file mode 100644
index 0000000..0da2e81
--- /dev/null
+++ b/media/libstagefright/include/ACodecBufferChannel.h
@@ -0,0 +1,140 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_BUFFER_CHANNEL_H_
+
+#define A_BUFFER_CHANNEL_H_
+
+#include <map>
+#include <memory>
+#include <mutex>
+#include <vector>
+
+#include <media/openmax/OMX_Types.h>
+#include <media/stagefright/CodecBase.h>
+#include <media/ICrypto.h>
+#include <media/IOMX.h>
+
+namespace android {
+
+/**
+ * BufferChannelBase implementation for ACodec.
+ */
+class ACodecBufferChannel : public BufferChannelBase {
+public:
+    struct BufferAndId {
+        sp<MediaCodecBuffer> mBuffer;
+        IOMX::buffer_id mBufferId;
+    };
+
+    struct BufferInfo {
+        BufferInfo(
+                const sp<MediaCodecBuffer> &buffer,
+                IOMX::buffer_id bufferId,
+                const sp<IMemory> &sharedEncryptedBuffer);
+
+        BufferInfo() = delete;
+
+        // Buffer facing MediaCodec and its clients.
+        const sp<MediaCodecBuffer> mClientBuffer;
+        // Buffer facing CodecBase.
+        const sp<MediaCodecBuffer> mCodecBuffer;
+        // OMX buffer ID.
+        const IOMX::buffer_id mBufferId;
+        // Encrypted buffer in case of secure input.
+        const sp<IMemory> mSharedEncryptedBuffer;
+    };
+
+    ACodecBufferChannel(
+            const sp<AMessage> &inputBufferFilled, const sp<AMessage> &outputBufferDrained);
+    virtual ~ACodecBufferChannel();
+
+    // BufferChannelBase interface
+    virtual status_t queueInputBuffer(const sp<MediaCodecBuffer> &buffer) override;
+    virtual status_t queueSecureInputBuffer(
+            const sp<MediaCodecBuffer> &buffer,
+            bool secure,
+            const uint8_t *key,
+            const uint8_t *iv,
+            CryptoPlugin::Mode mode,
+            CryptoPlugin::Pattern pattern,
+            const CryptoPlugin::SubSample *subSamples,
+            size_t numSubSamples,
+            AString *errorDetailMsg) override;
+    virtual status_t renderOutputBuffer(
+            const sp<MediaCodecBuffer> &buffer, int64_t timestampNs) override;
+    virtual status_t discardBuffer(const sp<MediaCodecBuffer> &buffer) override;
+    virtual void getInputBufferArray(Vector<sp<MediaCodecBuffer>> *array) override;
+    virtual void getOutputBufferArray(Vector<sp<MediaCodecBuffer>> *array) override;
+
+    // Methods below are interface for ACodec to use.
+
+    /**
+     * Set input buffer array.
+     *
+     * @param array     Newly allocated buffers. Empty if buffers are
+     *                  deallocated.
+     */
+    void setInputBufferArray(const std::vector<BufferAndId> &array);
+    /**
+     * Set output buffer array.
+     *
+     * @param array     Newly allocated buffers. Empty if buffers are
+     *                  deallocated.
+     */
+    void setOutputBufferArray(const std::vector<BufferAndId> &array);
+    /**
+     * Request MediaCodec to fill the specified input buffer.
+     *
+     * @param bufferId  ID of the buffer, assigned by underlying component.
+     */
+    void fillThisBuffer(IOMX::buffer_id bufferID);
+    /**
+     * Request MediaCodec to drain the specified output buffer.
+     *
+     * @param bufferId  ID of the buffer, assigned by underlying component.
+     * @param omxFlags  flags associated with this buffer (e.g. EOS).
+     */
+    void drainThisBuffer(IOMX::buffer_id bufferID, OMX_U32 omxFlags);
+
+private:
+    const sp<AMessage> mInputBufferFilled;
+    const sp<AMessage> mOutputBufferDrained;
+
+    sp<MemoryDealer> mDealer;
+    sp<IMemory> mDecryptDestination;
+    int32_t mHeapSeqNum;
+
+    // These should only be accessed via std::atomic_* functions.
+    //
+    // Note on thread safety: since the vector and BufferInfo are const, it's
+    // safe to read them at any thread once the shared_ptr object is atomically
+    // obtained. Inside BufferInfo, mBufferId and mSharedEncryptedBuffer are
+    // immutable objects. We write internal states of mClient/CodecBuffer when
+    // the caller has given up the reference, so that access is also safe.
+    std::shared_ptr<const std::vector<const BufferInfo>> mInputBuffers;
+    std::shared_ptr<const std::vector<const BufferInfo>> mOutputBuffers;
+
+    sp<MemoryDealer> makeMemoryDealer(size_t heapSize);
+
+    bool hasCryptoOrDescrambler() {
+        return mCrypto != NULL || mDescrambler != NULL;
+    }
+};
+
+}  // namespace android
+
+#endif  // A_BUFFER_CHANNEL_H_
diff --git a/media/libstagefright/include/AMRExtractor.h b/media/libstagefright/include/AMRExtractor.h
index ba2b674..8abcb12 100644
--- a/media/libstagefright/include/AMRExtractor.h
+++ b/media/libstagefright/include/AMRExtractor.h
@@ -29,7 +29,7 @@
 
 class AMRExtractor : public MediaExtractor {
 public:
-    AMRExtractor(const sp<DataSource> &source);
+    explicit AMRExtractor(const sp<DataSource> &source);
 
     virtual size_t countTracks();
     virtual sp<IMediaSource> getTrack(size_t index);
diff --git a/include/media/stagefright/AMRWriter.h b/media/libstagefright/include/AMRWriter.h
similarity index 100%
rename from include/media/stagefright/AMRWriter.h
rename to media/libstagefright/include/AMRWriter.h
diff --git a/include/media/stagefright/AudioPlayer.h b/media/libstagefright/include/AudioPlayer.h
similarity index 100%
rename from include/media/stagefright/AudioPlayer.h
rename to media/libstagefright/include/AudioPlayer.h
diff --git a/media/libstagefright/include/AudioSource.h b/media/libstagefright/include/AudioSource.h
new file mode 100644
index 0000000..f20c2cd
--- /dev/null
+++ b/media/libstagefright/include/AudioSource.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AUDIO_SOURCE_H_
+
+#define AUDIO_SOURCE_H_
+
+#include <media/AudioRecord.h>
+#include <media/AudioSystem.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/stagefright/MediaBuffer.h>
+#include <utils/List.h>
+
+#include <system/audio.h>
+
+namespace android {
+
+class AudioRecord;
+
+struct AudioSource : public MediaSource, public MediaBufferObserver {
+    // Note that the "channels" parameter _is_ the number of channels,
+    // _not_ a bitmask of audio_channels_t constants.
+    AudioSource(
+            audio_source_t inputSource,
+            const String16 &opPackageName,
+            uint32_t sampleRate,
+            uint32_t channels,
+            uint32_t outSampleRate = 0,
+            uid_t uid = -1,
+            pid_t pid = -1);
+
+    status_t initCheck() const;
+
+    virtual status_t start(MetaData *params = NULL);
+    virtual status_t stop() { return reset(); }
+    virtual sp<MetaData> getFormat();
+
+    // Returns the maximum amplitude since last call.
+    int16_t getMaxAmplitude();
+
+    virtual status_t read(
+            MediaBuffer **buffer, const ReadOptions *options = NULL);
+
+    status_t dataCallback(const AudioRecord::Buffer& buffer);
+    virtual void signalBufferReturned(MediaBuffer *buffer);
+
+protected:
+    virtual ~AudioSource();
+
+private:
+    enum {
+        kMaxBufferSize = 2048,
+
+        // After the initial mute, we raise the volume linearly
+        // over kAutoRampDurationUs.
+        kAutoRampDurationUs = 300000,
+
+        // This is the initial mute duration to suppress
+        // the video recording signal tone
+        kAutoRampStartUs = 0,
+    };
+
+    Mutex mLock;
+    Condition mFrameAvailableCondition;
+    Condition mFrameEncodingCompletionCondition;
+
+    sp<AudioRecord> mRecord;
+    status_t mInitCheck;
+    bool mStarted;
+    int32_t mSampleRate;
+    int32_t mOutSampleRate;
+
+    bool mTrackMaxAmplitude;
+    int64_t mStartTimeUs;
+    int16_t mMaxAmplitude;
+    int64_t mPrevSampleTimeUs;
+    int64_t mInitialReadTimeUs;
+    int64_t mNumFramesReceived;
+    int64_t mNumFramesSkipped;
+    int64_t mNumFramesLost;
+    int64_t mNumClientOwnedBuffers;
+
+    List<MediaBuffer * > mBuffersReceived;
+
+    void trackMaxAmplitude(int16_t *data, int nSamples);
+
+    // This is used to raise the volume from mute to the
+    // actual level linearly.
+    void rampVolume(
+        int32_t startFrame, int32_t rampDurationFrames,
+        uint8_t *data,   size_t bytes);
+
+    void queueInputBuffer_l(MediaBuffer *buffer, int64_t timeUs);
+    void releaseQueuedFrames_l();
+    void waitOutstandingEncodingFrames_l();
+    status_t reset();
+
+    AudioSource(const AudioSource &);
+    AudioSource &operator=(const AudioSource &);
+};
+
+}  // namespace android
+
+#endif  // AUDIO_SOURCE_H_
diff --git a/include/media/stagefright/BufferProducerWrapper.h b/media/libstagefright/include/BufferProducerWrapper.h
similarity index 100%
rename from include/media/stagefright/BufferProducerWrapper.h
rename to media/libstagefright/include/BufferProducerWrapper.h
diff --git a/media/libstagefright/include/CallbackDataSource.h b/media/libstagefright/include/CallbackDataSource.h
index d2187d5..0d775e6 100644
--- a/media/libstagefright/include/CallbackDataSource.h
+++ b/media/libstagefright/include/CallbackDataSource.h
@@ -29,7 +29,7 @@
 // DataSource because it calls back to the IDataSource for data.
 class CallbackDataSource : public DataSource {
 public:
-    CallbackDataSource(const sp<IDataSource>& iDataSource);
+    explicit CallbackDataSource(const sp<IDataSource>& iDataSource);
     virtual ~CallbackDataSource();
 
     // DataSource implementation.
@@ -42,6 +42,7 @@
         return mName;
     }
     virtual sp<DecryptHandle> DrmInitialization(const char *mime = NULL);
+    virtual sp<IDataSource> getIDataSource() const;
 
 private:
     sp<IDataSource> mIDataSource;
@@ -59,7 +60,7 @@
 // impact on time taken for filetype sniffing and metadata extraction.
 class TinyCacheSource : public DataSource {
 public:
-    TinyCacheSource(const sp<DataSource>& source);
+    explicit TinyCacheSource(const sp<DataSource>& source);
 
     virtual status_t initCheck() const;
     virtual ssize_t readAt(off64_t offset, void* data, size_t size);
@@ -70,6 +71,7 @@
         return mName;
     }
     virtual sp<DecryptHandle> DrmInitialization(const char *mime = NULL);
+    virtual sp<IDataSource> getIDataSource() const;
 
 private:
     // 2kb comes from experimenting with the time-to-first-frame from a MediaPlayer
diff --git a/media/libstagefright/include/CameraSource.h b/media/libstagefright/include/CameraSource.h
new file mode 100644
index 0000000..aa56d27
--- /dev/null
+++ b/media/libstagefright/include/CameraSource.h
@@ -0,0 +1,339 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CAMERA_SOURCE_H_
+
+#define CAMERA_SOURCE_H_
+
+#include <deque>
+#include <media/stagefright/MediaBuffer.h>
+#include <media/stagefright/MediaSource.h>
+#include <camera/android/hardware/ICamera.h>
+#include <camera/ICameraRecordingProxy.h>
+#include <camera/ICameraRecordingProxyListener.h>
+#include <camera/CameraParameters.h>
+#include <gui/BufferItemConsumer.h>
+#include <utils/List.h>
+#include <utils/RefBase.h>
+#include <utils/String16.h>
+#include <MetadataBufferType.h>
+
+namespace android {
+
+class IMemory;
+class Camera;
+class Surface;
+
+class CameraSource : public MediaSource, public MediaBufferObserver {
+public:
+    /**
+     * Factory method to create a new CameraSource using the current
+     * settings (such as video size, frame rate, color format, etc)
+     * from the default camera.
+     *
+     * @param clientName The package/process name of the client application.
+     *    This is used for permissions checking.
+     * @return NULL on error.
+     */
+    static CameraSource *Create(const String16 &clientName);
+
+    /**
+     * Factory method to create a new CameraSource.
+     *
+     * @param camera the video input frame data source. If it is NULL,
+     *          we will try to connect to the camera with the given
+     *          cameraId.
+     *
+     * @param cameraId the id of the camera that the source will connect
+     *          to if camera is NULL; otherwise ignored.
+     * @param clientName the package/process name of the camera-using
+     *          application if camera is NULL; otherwise ignored. Used for
+     *          permissions checking.
+     * @param clientUid the UID of the camera-using application if camera is
+     *          NULL; otherwise ignored. Used for permissions checking.
+     * @param clientPid the PID of the camera-using application if camera is
+     *          NULL; otherwise ignored. Used for permissions checking.
+     * @param videoSize the dimension (in pixels) of the video frame
+     * @param frameRate the target frames per second
+     * @param surface the preview surface for display where preview
+     *          frames are sent to
+     * @param storeMetaDataInVideoBuffers true to request the camera
+     *          source to store meta data in video buffers; false to
+     *          request the camera source to store real YUV frame data
+     *          in the video buffers. The camera source may not support
+     *          storing meta data in video buffers, if so, a request
+     *          to do that will NOT be honored. To find out whether
+     *          meta data is actually being stored in video buffers
+     *          during recording, call isMetaDataStoredInVideoBuffers().
+     *
+     * @return NULL on error.
+     */
+    static CameraSource *CreateFromCamera(const sp<hardware::ICamera> &camera,
+                                          const sp<ICameraRecordingProxy> &proxy,
+                                          int32_t cameraId,
+                                          const String16& clientName,
+                                          uid_t clientUid,
+                                          pid_t clientPid,
+                                          Size videoSize,
+                                          int32_t frameRate,
+                                          const sp<IGraphicBufferProducer>& surface,
+                                          bool storeMetaDataInVideoBuffers = true);
+
+    virtual ~CameraSource();
+
+    virtual status_t start(MetaData *params = NULL);
+    virtual status_t stop() { return reset(); }
+    virtual status_t read(
+            MediaBuffer **buffer, const ReadOptions *options = NULL);
+
+    /**
+     * Check whether a CameraSource object is properly initialized.
+     * Must call this method before stop().
+     * @return OK if initialization has successfully completed.
+     */
+    virtual status_t initCheck() const;
+
+    /**
+     * Returns the MetaData associated with the CameraSource,
+     * including:
+     * kKeyColorFormat: YUV color format of the video frames
+     * kKeyWidth, kKeyHeight: dimension (in pixels) of the video frames
+     * kKeySampleRate: frame rate in frames per second
+     * kKeyMIMEType: always fixed to be MEDIA_MIMETYPE_VIDEO_RAW
+     */
+    virtual sp<MetaData> getFormat();
+
+    /**
+     * Tell whether this camera source stores meta data or real YUV
+     * frame data in video buffers.
+     *
+     * @return a valid type if meta data is stored in the video
+     *      buffers; kMetadataBufferTypeInvalid if real YUV data is stored in
+     *      the video buffers.
+     */
+    MetadataBufferType metaDataStoredInVideoBuffers() const;
+
+    virtual void signalBufferReturned(MediaBuffer* buffer);
+
+protected:
+
+    /**
+     * The class for listening to BnCameraRecordingProxyListener. This is used to receive video
+     * buffers in VIDEO_BUFFER_MODE_DATA_CALLBACK_YUV and VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA
+     * mode. When a frame is available, CameraSource::dataCallbackTimestamp() will be called.
+     */
+    class ProxyListener: public BnCameraRecordingProxyListener {
+    public:
+        ProxyListener(const sp<CameraSource>& source);
+        virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType,
+                const sp<IMemory> &data);
+        virtual void recordingFrameHandleCallbackTimestamp(int64_t timestampUs,
+                native_handle_t* handle);
+        virtual void recordingFrameHandleCallbackTimestampBatch(
+                const std::vector<int64_t>& timestampsUs,
+                const std::vector<native_handle_t*>& handles);
+
+    private:
+        sp<CameraSource> mSource;
+    };
+
+    /**
+     * The class for listening to BufferQueue's onFrameAvailable. This is used to receive video
+     * buffers in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode. When a frame is available,
+     * CameraSource::processBufferQueueFrame() will be called.
+     */
+    class BufferQueueListener : public Thread,  public BufferItemConsumer::FrameAvailableListener {
+    public:
+        BufferQueueListener(const sp<BufferItemConsumer> &consumer,
+                const sp<CameraSource> &cameraSource);
+        virtual void onFrameAvailable(const BufferItem& item);
+        virtual bool threadLoop();
+    private:
+        static const nsecs_t kFrameAvailableTimeout = 50000000; // 50ms
+
+        sp<BufferItemConsumer> mConsumer;
+        sp<CameraSource> mCameraSource;
+
+        Mutex mLock;
+        Condition mFrameAvailableSignal;
+        bool mFrameAvailable;
+    };
+
+    // isBinderAlive needs linkToDeath to work.
+    class DeathNotifier: public IBinder::DeathRecipient {
+    public:
+        DeathNotifier() {}
+        virtual void binderDied(const wp<IBinder>& who);
+    };
+
+    enum CameraFlags {
+        FLAGS_SET_CAMERA = 1L << 0,
+        FLAGS_HOT_CAMERA = 1L << 1,
+    };
+
+    int32_t  mCameraFlags;
+    Size     mVideoSize;
+    int32_t  mNumInputBuffers;
+    int32_t  mVideoFrameRate;
+    int32_t  mColorFormat;
+    int32_t  mEncoderFormat;
+    int32_t  mEncoderDataSpace;
+    status_t mInitCheck;
+
+    sp<Camera>   mCamera;
+    sp<ICameraRecordingProxy>   mCameraRecordingProxy;
+    sp<DeathNotifier> mDeathNotifier;
+    sp<IGraphicBufferProducer>  mSurface;
+    sp<MetaData> mMeta;
+
+    int64_t mStartTimeUs;
+    int32_t mNumFramesReceived;
+    int64_t mLastFrameTimestampUs;
+    bool mStarted;
+    int32_t mNumFramesEncoded;
+
+    // Time between capture of two frames.
+    int64_t mTimeBetweenFrameCaptureUs;
+
+    CameraSource(const sp<hardware::ICamera>& camera, const sp<ICameraRecordingProxy>& proxy,
+                 int32_t cameraId, const String16& clientName, uid_t clientUid, pid_t clientPid,
+                 Size videoSize, int32_t frameRate,
+                 const sp<IGraphicBufferProducer>& surface,
+                 bool storeMetaDataInVideoBuffers);
+
+    virtual status_t startCameraRecording();
+    virtual void releaseRecordingFrame(const sp<IMemory>& frame);
+    virtual void releaseRecordingFrameHandle(native_handle_t* handle);
+    // stagefright recorder not using this for now
+    virtual void releaseRecordingFrameHandleBatch(const std::vector<native_handle_t*>& handles);
+
+    // Returns true if need to skip the current frame.
+    // Called from dataCallbackTimestamp.
+    virtual bool skipCurrentFrame(int64_t /*timestampUs*/) {return false;}
+
+    // Callback called when still camera raw data is available.
+    virtual void dataCallback(int32_t /*msgType*/, const sp<IMemory>& /*data*/) {}
+
+    virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType,
+            const sp<IMemory> &data);
+
+    virtual void recordingFrameHandleCallbackTimestamp(int64_t timestampUs,
+            native_handle_t* handle);
+
+    virtual void recordingFrameHandleCallbackTimestampBatch(
+            const std::vector<int64_t>& timestampsUs,
+            const std::vector<native_handle_t*>& handles);
+
+    // Process a buffer item received in BufferQueueListener.
+    virtual void processBufferQueueFrame(BufferItem& buffer);
+
+    void releaseCamera();
+
+private:
+    friend struct CameraSourceListener;
+
+    Mutex mLock;
+    Condition mFrameAvailableCondition;
+    Condition mFrameCompleteCondition;
+    List<sp<IMemory> > mFramesReceived;
+    List<sp<IMemory> > mFramesBeingEncoded;
+    List<int64_t> mFrameTimes;
+
+    int64_t mFirstFrameTimeUs;
+    int32_t mNumFramesDropped;
+    int32_t mNumGlitches;
+    int64_t mGlitchDurationThresholdUs;
+    bool mCollectStats;
+
+    // The mode video buffers are received from camera. One of VIDEO_BUFFER_MODE_*.
+    int32_t mVideoBufferMode;
+
+    static const uint32_t kDefaultVideoBufferCount = 32;
+
+    /**
+     * The following variables are used in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
+     */
+    static const size_t kConsumerBufferCount = 8;
+    static const nsecs_t kMemoryBaseAvailableTimeoutNs = 200000000; // 200ms
+    // Consumer and producer of the buffer queue between this class and camera.
+    sp<BufferItemConsumer> mVideoBufferConsumer;
+    sp<IGraphicBufferProducer> mVideoBufferProducer;
+    // Memory used to send the buffers to encoder, where sp<IMemory> stores VideoNativeMetadata.
+    sp<IMemoryHeap> mMemoryHeapBase;
+    List<sp<IMemory>> mMemoryBases;
+    // The condition that will be signaled when there is an entry available in mMemoryBases.
+    Condition mMemoryBaseAvailableCond;
+    // A mapping from ANativeWindowBuffer sent to encoder to BufferItem received from camera.
+    // This is protected by mLock.
+    KeyedVector<ANativeWindowBuffer*, BufferItem> mReceivedBufferItemMap;
+    sp<BufferQueueListener> mBufferQueueListener;
+
+    Mutex mBatchLock; // protecting access to mInflightXXXXX members below
+    // Start of members protected by mBatchLock
+    std::deque<uint32_t> mInflightBatchSizes;
+    std::vector<native_handle_t*> mInflightReturnedHandles;
+    std::vector<const sp<IMemory>> mInflightReturnedMemorys;
+    // End of members protected by mBatchLock
+
+    void releaseQueuedFrames();
+    void releaseOneRecordingFrame(const sp<IMemory>& frame);
+    void createVideoBufferMemoryHeap(size_t size, uint32_t bufferCount);
+
+    status_t init(const sp<hardware::ICamera>& camera, const sp<ICameraRecordingProxy>& proxy,
+                  int32_t cameraId, const String16& clientName, uid_t clientUid, pid_t clientPid,
+                  Size videoSize, int32_t frameRate, bool storeMetaDataInVideoBuffers);
+
+    status_t initWithCameraAccess(
+                  const sp<hardware::ICamera>& camera, const sp<ICameraRecordingProxy>& proxy,
+                  int32_t cameraId, const String16& clientName, uid_t clientUid, pid_t clientPid,
+                  Size videoSize, int32_t frameRate, bool storeMetaDataInVideoBuffers);
+
+    // Initialize the buffer queue used in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
+    status_t initBufferQueue(uint32_t width, uint32_t height, uint32_t format,
+                  android_dataspace dataSpace, uint32_t bufferCount);
+
+    status_t isCameraAvailable(const sp<hardware::ICamera>& camera,
+                               const sp<ICameraRecordingProxy>& proxy,
+                               int32_t cameraId,
+                               const String16& clientName,
+                               uid_t clientUid,
+                               pid_t clientPid);
+
+    status_t isCameraColorFormatSupported(const CameraParameters& params);
+    status_t configureCamera(CameraParameters* params,
+                    int32_t width, int32_t height,
+                    int32_t frameRate);
+
+    status_t checkVideoSize(const CameraParameters& params,
+                    int32_t width, int32_t height);
+
+    status_t checkFrameRate(const CameraParameters& params,
+                    int32_t frameRate);
+
+    // Check if this frame should be skipped based on the frame's timestamp in microsecond.
+    // mLock must be locked before calling this function.
+    bool shouldSkipFrameLocked(int64_t timestampUs);
+
+    void stopCameraRecording();
+    status_t reset();
+
+    CameraSource(const CameraSource &);
+    CameraSource &operator=(const CameraSource &);
+};
+
+}  // namespace android
+
+#endif  // CAMERA_SOURCE_H_
diff --git a/media/libstagefright/include/CameraSourceTimeLapse.h b/media/libstagefright/include/CameraSourceTimeLapse.h
new file mode 100644
index 0000000..b066f9a
--- /dev/null
+++ b/media/libstagefright/include/CameraSourceTimeLapse.h
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CAMERA_SOURCE_TIME_LAPSE_H_
+
+#define CAMERA_SOURCE_TIME_LAPSE_H_
+
+#include <pthread.h>
+
+#include <utils/RefBase.h>
+#include <utils/threads.h>
+#include <utils/String16.h>
+
+namespace android {
+
+namespace hardware {
+class ICamera;
+}
+
+class IMemory;
+class Camera;
+
+class CameraSourceTimeLapse : public CameraSource {
+public:
+    static CameraSourceTimeLapse *CreateFromCamera(
+        const sp<hardware::ICamera> &camera,
+        const sp<ICameraRecordingProxy> &proxy,
+        int32_t cameraId,
+        const String16& clientName,
+        uid_t clientUid,
+        pid_t clientPid,
+        Size videoSize,
+        int32_t videoFrameRate,
+        const sp<IGraphicBufferProducer>& surface,
+        int64_t timeBetweenTimeLapseFrameCaptureUs,
+        bool storeMetaDataInVideoBuffers = true);
+
+    virtual ~CameraSourceTimeLapse();
+
+    // If the frame capture interval is large, read will block for a long time.
+    // Due to the way the mediaRecorder framework works, a stop() call from
+    // mediaRecorder waits until the read returns, causing a long wait for
+    // stop() to return. To avoid this, we can make read() return a copy of the
+    // last read frame with the same time stamp frequently. This keeps the
+    // read() call from blocking too long. Calling this function quickly
+    // captures another frame, keeps its copy, and enables this mode of read()
+    // returning quickly.
+    void startQuickReadReturns();
+
+private:
+    // size of the encoded video.
+    int32_t mVideoWidth;
+    int32_t mVideoHeight;
+
+    // Time between two frames in final video (1/frameRate)
+    int64_t mTimeBetweenTimeLapseVideoFramesUs;
+
+    // Real timestamp of the last encoded time lapse frame
+    int64_t mLastTimeLapseFrameRealTimestampUs;
+
+    // Variable set in dataCallbackTimestamp() to help skipCurrentFrame()
+    // to know if current frame needs to be skipped.
+    bool mSkipCurrentFrame;
+
+    // Lock for accessing mCameraIdle
+    Mutex mCameraIdleLock;
+
+    // Condition variable to wait on if camera is is not yet idle. Once the
+    // camera gets idle, this variable will be signalled.
+    Condition mCameraIdleCondition;
+
+    // True if camera is in preview mode and ready for takePicture().
+    // False after a call to takePicture() but before the final compressed
+    // data callback has been called and preview has been restarted.
+    volatile bool mCameraIdle;
+
+    // True if stop() is waiting for camera to get idle, i.e. for the last
+    // takePicture() to complete. This is needed so that dataCallbackTimestamp()
+    // can return immediately.
+    volatile bool mStopWaitingForIdleCamera;
+
+    // Lock for accessing quick stop variables.
+    Mutex mQuickStopLock;
+
+    // mQuickStop is set to true if we use quick read() returns, otherwise it is set
+    // to false. Once in this mode read() return a copy of the last read frame
+    // with the same time stamp. See startQuickReadReturns().
+    volatile bool mQuickStop;
+
+    // Forces the next frame passed to dataCallbackTimestamp() to be read
+    // as a time lapse frame. Used by startQuickReadReturns() so that the next
+    // frame wakes up any blocking read.
+    volatile bool mForceRead;
+
+    // Stores a copy of the MediaBuffer read in the last read() call after
+    // mQuickStop was true.
+    MediaBuffer* mLastReadBufferCopy;
+
+    // Status code for last read.
+    status_t mLastReadStatus;
+
+    CameraSourceTimeLapse(
+        const sp<hardware::ICamera> &camera,
+        const sp<ICameraRecordingProxy> &proxy,
+        int32_t cameraId,
+        const String16& clientName,
+        uid_t clientUid,
+        pid_t clientPid,
+        Size videoSize,
+        int32_t videoFrameRate,
+        const sp<IGraphicBufferProducer>& surface,
+        int64_t timeBetweenTimeLapseFrameCaptureUs,
+        bool storeMetaDataInVideoBuffers = true);
+
+    // Wrapper over CameraSource::signalBufferReturned() to implement quick stop.
+    // It only handles the case when mLastReadBufferCopy is signalled. Otherwise
+    // it calls the base class' function.
+    virtual void signalBufferReturned(MediaBuffer* buffer);
+
+    // Wrapper over CameraSource::read() to implement quick stop.
+    virtual status_t read(MediaBuffer **buffer, const ReadOptions *options = NULL);
+
+    // mSkipCurrentFrame is set to true in dataCallbackTimestamp() if the current
+    // frame needs to be skipped and this function just returns the value of mSkipCurrentFrame.
+    virtual bool skipCurrentFrame(int64_t timestampUs);
+
+    // In the video camera case calls skipFrameAndModifyTimeStamp() to modify
+    // timestamp and set mSkipCurrentFrame.
+    // Then it calls the base CameraSource::dataCallbackTimestamp()
+    // This will be called in VIDEO_BUFFER_MODE_DATA_CALLBACK_YUV and
+    // VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA mode.
+    virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType,
+            const sp<IMemory> &data);
+
+    // In the video camera case calls skipFrameAndModifyTimeStamp() to modify
+    // timestamp and set mSkipCurrentFrame.
+    // Then it calls the base CameraSource::recordingFrameHandleCallbackTimestamp() or
+    // CameraSource::recordingFrameHandleCallbackTimestampBatch()
+    // This will be called in VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA mode when
+    // the metadata is VideoNativeHandleMetadata.
+    virtual void recordingFrameHandleCallbackTimestamp(int64_t timestampUs,
+            native_handle_t* handle);
+
+    // In the video camera case calls skipFrameAndModifyTimeStamp() to modify
+    // timestamp and set mSkipCurrentFrame.
+    // Then it calls the base CameraSource::recordingFrameHandleCallbackTimestamp() or
+    // CameraSource::recordingFrameHandleCallbackTimestampBatch()
+    // This will be called in VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA mode when
+    // the metadata is VideoNativeHandleMetadata.
+    virtual void recordingFrameHandleCallbackTimestampBatch(
+            const std::vector<int64_t>& timestampsUs,
+            const std::vector<native_handle_t*>& handles);
+
+    // Process a buffer item received in CameraSource::BufferQueueListener.
+    // This will be called in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
+    virtual void processBufferQueueFrame(BufferItem& buffer);
+
+    // Convenience function to fill mLastReadBufferCopy from the just read
+    // buffer.
+    void fillLastReadBufferCopy(MediaBuffer& sourceBuffer);
+
+    // If the passed in size (width x height) is a supported video/preview size,
+    // the function sets the camera's video/preview size to it and returns true.
+    // Otherwise returns false.
+    bool trySettingVideoSize(int32_t width, int32_t height);
+
+    // When video camera is used for time lapse capture, returns true
+    // until enough time has passed for the next time lapse frame. When
+    // the frame needs to be encoded, it returns false and also modifies
+    // the time stamp to be one frame time ahead of the last encoded
+    // frame's time stamp.
+    bool skipFrameAndModifyTimeStamp(int64_t *timestampUs);
+
+    // Wrapper to enter threadTimeLapseEntry()
+    static void *ThreadTimeLapseWrapper(void *me);
+
+    // Creates a copy of source_data into a new memory of final type MemoryBase.
+    sp<IMemory> createIMemoryCopy(const sp<IMemory> &source_data);
+
+    CameraSourceTimeLapse(const CameraSourceTimeLapse &);
+    CameraSourceTimeLapse &operator=(const CameraSourceTimeLapse &);
+};
+
+}  // namespace android
+
+#endif  // CAMERA_SOURCE_TIME_LAPSE_H_
diff --git a/media/libstagefright/include/CodecBase.h b/media/libstagefright/include/CodecBase.h
new file mode 100644
index 0000000..845146d
--- /dev/null
+++ b/media/libstagefright/include/CodecBase.h
@@ -0,0 +1,331 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CODEC_BASE_H_
+
+#define CODEC_BASE_H_
+
+#include <memory>
+
+#include <stdint.h>
+
+#define STRINGIFY_ENUMS
+
+#include <media/ICrypto.h>
+#include <media/IOMX.h>
+#include <media/MediaCodecInfo.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/foundation/AHandler.h>
+#include <media/stagefright/foundation/ColorUtils.h>
+#include <media/hardware/HardwareAPI.h>
+
+#include <utils/NativeHandle.h>
+
+#include <system/graphics.h>
+#include <android/media/IDescrambler.h>
+
+namespace android {
+using namespace media;
+class BufferChannelBase;
+class BufferProducerWrapper;
+class MediaCodecBuffer;
+struct PersistentSurface;
+struct RenderedFrameInfo;
+class Surface;
+
+struct CodecBase : public AHandler, /* static */ ColorUtils {
+    /**
+     * This interface defines events firing from CodecBase back to MediaCodec.
+     * All methods must not block.
+     */
+    class CodecCallback {
+    public:
+        virtual ~CodecCallback() = default;
+
+        /**
+         * Notify MediaCodec for seeing an output EOS.
+         *
+         * @param err the underlying cause of the EOS. If the value is neither
+         *            OK nor ERROR_END_OF_STREAM, the EOS is declared
+         *            prematurely for that error.
+         */
+        virtual void onEos(status_t err) = 0;
+        /**
+         * Notify MediaCodec that start operation is complete.
+         */
+        virtual void onStartCompleted() = 0;
+        /**
+         * Notify MediaCodec that stop operation is complete.
+         */
+        virtual void onStopCompleted() = 0;
+        /**
+         * Notify MediaCodec that release operation is complete.
+         */
+        virtual void onReleaseCompleted() = 0;
+        /**
+         * Notify MediaCodec that flush operation is complete.
+         */
+        virtual void onFlushCompleted() = 0;
+        /**
+         * Notify MediaCodec that an error is occurred.
+         *
+         * @param err         an error code for the occurred error.
+         * @param actionCode  an action code for severity of the error.
+         */
+        virtual void onError(status_t err, enum ActionCode actionCode) = 0;
+        /**
+         * Notify MediaCodec that the underlying component is allocated.
+         *
+         * @param componentName the unique name of the component specified in
+         *                      MediaCodecList.
+         */
+        virtual void onComponentAllocated(const char *componentName) = 0;
+        /**
+         * Notify MediaCodec that the underlying component is configured.
+         *
+         * @param inputFormat   an input format at configure time.
+         * @param outputFormat  an output format at configure time.
+         */
+        virtual void onComponentConfigured(
+                const sp<AMessage> &inputFormat, const sp<AMessage> &outputFormat) = 0;
+        /**
+         * Notify MediaCodec that the input surface is created.
+         *
+         * @param inputFormat   an input format at surface creation. Formats
+         *                      could change from the previous state as a result
+         *                      of creating a surface.
+         * @param outputFormat  an output format at surface creation.
+         * @param inputSurface  the created surface.
+         */
+        virtual void onInputSurfaceCreated(
+                const sp<AMessage> &inputFormat,
+                const sp<AMessage> &outputFormat,
+                const sp<BufferProducerWrapper> &inputSurface) = 0;
+        /**
+         * Notify MediaCodec that the input surface creation is failed.
+         *
+         * @param err an error code of the cause.
+         */
+        virtual void onInputSurfaceCreationFailed(status_t err) = 0;
+        /**
+         * Notify MediaCodec that the component accepted the provided input
+         * surface.
+         *
+         * @param inputFormat   an input format at surface assignment. Formats
+         *                      could change from the previous state as a result
+         *                      of assigning a surface.
+         * @param outputFormat  an output format at surface assignment.
+         */
+        virtual void onInputSurfaceAccepted(
+                const sp<AMessage> &inputFormat,
+                const sp<AMessage> &outputFormat) = 0;
+        /**
+         * Notify MediaCodec that the component declined the provided input
+         * surface.
+         *
+         * @param err an error code of the cause.
+         */
+        virtual void onInputSurfaceDeclined(status_t err) = 0;
+        /**
+         * Noitfy MediaCodec that the requested input EOS is sent to the input
+         * surface.
+         *
+         * @param err an error code returned from the surface. If there is no
+         *            input surface, the value is INVALID_OPERATION.
+         */
+        virtual void onSignaledInputEOS(status_t err) = 0;
+        /**
+         * Notify MediaCodec that output frames are rendered with information on
+         * those frames.
+         *
+         * @param done  a list of rendered frames.
+         */
+        virtual void onOutputFramesRendered(const std::list<RenderedFrameInfo> &done) = 0;
+        /**
+         * Notify MediaCodec that output buffers are changed.
+         */
+        virtual void onOutputBuffersChanged() = 0;
+    };
+
+    /**
+     * This interface defines events firing from BufferChannelBase back to MediaCodec.
+     * All methods must not block.
+     */
+    class BufferCallback {
+    public:
+        virtual ~BufferCallback() = default;
+
+        /**
+         * Notify MediaCodec that an input buffer is available with given index.
+         * When BufferChannelBase::getInputBufferArray() is not called,
+         * BufferChannelBase may report different buffers with the same index if
+         * MediaCodec already queued/discarded the buffer. After calling
+         * BufferChannelBase::getInputBufferArray(), the buffer and index match the
+         * returned array.
+         */
+        virtual void onInputBufferAvailable(
+                size_t index, const sp<MediaCodecBuffer> &buffer) = 0;
+        /**
+         * Notify MediaCodec that an output buffer is available with given index.
+         * When BufferChannelBase::getOutputBufferArray() is not called,
+         * BufferChannelBase may report different buffers with the same index if
+         * MediaCodec already queued/discarded the buffer. After calling
+         * BufferChannelBase::getOutputBufferArray(), the buffer and index match the
+         * returned array.
+         */
+        virtual void onOutputBufferAvailable(
+                size_t index, const sp<MediaCodecBuffer> &buffer) = 0;
+    };
+    enum {
+        kMaxCodecBufferSize = 8192 * 4096 * 4, // 8K RGBA
+    };
+
+    inline void setCallback(std::unique_ptr<CodecCallback> &&callback) {
+        mCallback = std::move(callback);
+    }
+    virtual std::shared_ptr<BufferChannelBase> getBufferChannel() = 0;
+
+    virtual void initiateAllocateComponent(const sp<AMessage> &msg) = 0;
+    virtual void initiateConfigureComponent(const sp<AMessage> &msg) = 0;
+    virtual void initiateCreateInputSurface() = 0;
+    virtual void initiateSetInputSurface(
+            const sp<PersistentSurface> &surface) = 0;
+    virtual void initiateStart() = 0;
+    virtual void initiateShutdown(bool keepComponentAllocated = false) = 0;
+
+    // require an explicit message handler
+    virtual void onMessageReceived(const sp<AMessage> &msg) = 0;
+
+    virtual status_t queryCapabilities(
+            const AString& /*name*/, const AString& /*mime*/, bool /*isEncoder*/,
+            sp<MediaCodecInfo::Capabilities>* /*caps*/ /* nonnull */) { return INVALID_OPERATION; }
+
+    virtual status_t setSurface(const sp<Surface>& /*surface*/) { return INVALID_OPERATION; }
+
+    virtual void signalFlush() = 0;
+    virtual void signalResume() = 0;
+
+    virtual void signalRequestIDRFrame() = 0;
+    virtual void signalSetParameters(const sp<AMessage> &msg) = 0;
+    virtual void signalEndOfInputStream() = 0;
+
+    /*
+     * Codec-related defines
+     */
+
+protected:
+    CodecBase() = default;
+    virtual ~CodecBase() = default;
+
+    std::unique_ptr<CodecCallback> mCallback;
+
+private:
+    DISALLOW_EVIL_CONSTRUCTORS(CodecBase);
+};
+
+/**
+ * A channel between MediaCodec and CodecBase object which manages buffer
+ * passing. Only MediaCodec is expected to call these methods, and
+ * underlying CodecBase implementation should define its own interface
+ * separately for itself.
+ *
+ * Concurrency assumptions:
+ *
+ * 1) Clients may access the object at multiple threads concurrently.
+ * 2) All methods do not call underlying CodecBase object while holding a lock.
+ * 3) Code inside critical section executes within 1ms.
+ */
+class BufferChannelBase {
+public:
+    virtual ~BufferChannelBase() = default;
+
+    inline void setCallback(std::unique_ptr<CodecBase::BufferCallback> &&callback) {
+        mCallback = std::move(callback);
+    }
+
+    inline void setCrypto(const sp<ICrypto> &crypto) {
+        mCrypto = crypto;
+    }
+
+    inline void setDescrambler(const sp<IDescrambler> &descrambler) {
+        mDescrambler = descrambler;
+    }
+
+    /**
+     * Queue an input buffer into the buffer channel.
+     *
+     * @return    OK if successful;
+     *            -ENOENT if the buffer is not known (TODO: this should be
+     *            handled gracefully in the future, here and below).
+     */
+    virtual status_t queueInputBuffer(const sp<MediaCodecBuffer> &buffer) = 0;
+    /**
+     * Queue a secure input buffer into the buffer channel.
+     *
+     * @return    OK if successful;
+     *            -ENOENT if the buffer is not known;
+     *            -ENOSYS if mCrypto is not set so that decryption is not
+     *            possible;
+     *            other errors if decryption failed.
+     */
+    virtual status_t queueSecureInputBuffer(
+            const sp<MediaCodecBuffer> &buffer,
+            bool secure,
+            const uint8_t *key,
+            const uint8_t *iv,
+            CryptoPlugin::Mode mode,
+            CryptoPlugin::Pattern pattern,
+            const CryptoPlugin::SubSample *subSamples,
+            size_t numSubSamples,
+            AString *errorDetailMsg) = 0;
+    /**
+     * Request buffer rendering at specified time.
+     *
+     * @param     timestampNs   nanosecond timestamp for rendering time.
+     * @return    OK if successful;
+     *            -ENOENT if the buffer is not known.
+     */
+    virtual status_t renderOutputBuffer(
+            const sp<MediaCodecBuffer> &buffer, int64_t timestampNs) = 0;
+    /**
+     * Discard a buffer to the underlying CodecBase object.
+     *
+     * TODO: remove once this operation can be handled by just clearing the
+     * reference.
+     *
+     * @return    OK if successful;
+     *            -ENOENT if the buffer is not known.
+     */
+    virtual status_t discardBuffer(const sp<MediaCodecBuffer> &buffer) = 0;
+    /**
+     * Clear and fill array with input buffers.
+     */
+    virtual void getInputBufferArray(Vector<sp<MediaCodecBuffer>> *array) = 0;
+    /**
+     * Clear and fill array with output buffers.
+     */
+    virtual void getOutputBufferArray(Vector<sp<MediaCodecBuffer>> *array) = 0;
+
+protected:
+    std::unique_ptr<CodecBase::BufferCallback> mCallback;
+    sp<ICrypto> mCrypto;
+    sp<IDescrambler> mDescrambler;
+};
+
+}  // namespace android
+
+#endif  // CODEC_BASE_H_
+
diff --git a/include/media/stagefright/ColorConverter.h b/media/libstagefright/include/ColorConverter.h
similarity index 100%
rename from include/media/stagefright/ColorConverter.h
rename to media/libstagefright/include/ColorConverter.h
diff --git a/media/libstagefright/include/DRMExtractor.h b/media/libstagefright/include/DRMExtractor.h
deleted file mode 100644
index 3dc7df8..0000000
--- a/media/libstagefright/include/DRMExtractor.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef DRM_EXTRACTOR_H_
-
-#define DRM_EXTRACTOR_H_
-
-#include <media/IMediaSource.h>
-#include <media/stagefright/MediaExtractor.h>
-#include <drm/DrmManagerClient.h>
-
-namespace android {
-
-struct AMessage;
-class DataSource;
-class SampleTable;
-class String8;
-class DecryptHandle;
-
-class DRMExtractor : public MediaExtractor {
-public:
-    DRMExtractor(const sp<DataSource> &source, const char *mime);
-
-    virtual size_t countTracks();
-    virtual sp<IMediaSource> getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
-    virtual sp<MetaData> getMetaData();
-    virtual const char * name() { return "DRMExtractor"; }
-
-protected:
-    virtual ~DRMExtractor();
-
-private:
-    sp<DataSource> mDataSource;
-
-    sp<IMediaExtractor> mOriginalExtractor;
-    sp<DecryptHandle> mDecryptHandle;
-    DrmManagerClient* mDrmManagerClient;
-
-    DRMExtractor(const DRMExtractor &);
-    DRMExtractor &operator=(const DRMExtractor &);
-};
-
-bool SniffDRM(
-        const sp<DataSource> &source, String8 *mimeType, float *confidence,
-            sp<AMessage> *);
-
-}  // namespace android
-
-#endif  // DRM_EXTRACTOR_H_
-
diff --git a/media/libstagefright/include/DataConverter.h b/media/libstagefright/include/DataConverter.h
index 8d67921..60ebad1 100644
--- a/media/libstagefright/include/DataConverter.h
+++ b/media/libstagefright/include/DataConverter.h
@@ -24,18 +24,18 @@
 
 namespace android {
 
-struct ABuffer;
+class MediaCodecBuffer;
 
 // DataConverter base class, defaults to memcpy
 struct DataConverter : public RefBase {
     virtual size_t sourceSize(size_t targetSize); // will clamp to SIZE_MAX
     virtual size_t targetSize(size_t sourceSize); // will clamp to SIZE_MAX
 
-    status_t convert(const sp<ABuffer> &source, sp<ABuffer> &target);
+    status_t convert(const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target);
     virtual ~DataConverter();
 
 protected:
-    virtual status_t safeConvert(const sp<ABuffer> &source, sp<ABuffer> &target);
+    virtual status_t safeConvert(const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target);
 };
 
 // SampleConverterBase uses a ratio to calculate the source and target sizes
@@ -45,7 +45,7 @@
     virtual size_t targetSize(size_t sourceSize);
 
 protected:
-    virtual status_t safeConvert(const sp<ABuffer> &source, sp<ABuffer> &target) = 0;
+    virtual status_t safeConvert(const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target) = 0;
 
     // sourceSize = sourceSampleSize / targetSampleSize * targetSize
     SampleConverterBase(uint32_t sourceSampleSize, uint32_t targetSampleSize)
@@ -61,7 +61,7 @@
     static AudioConverter *Create(AudioEncoding source, AudioEncoding target);
 
 protected:
-    virtual status_t safeConvert(const sp<ABuffer> &src, sp<ABuffer> &tgt);
+    virtual status_t safeConvert(const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target);
 
 private:
     AudioConverter(
diff --git a/media/libstagefright/include/DataSource.h b/media/libstagefright/include/DataSource.h
new file mode 100644
index 0000000..8f2c7eb
--- /dev/null
+++ b/media/libstagefright/include/DataSource.h
@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DATA_SOURCE_H_
+
+#define DATA_SOURCE_H_
+
+#include <sys/types.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/List.h>
+#include <utils/RefBase.h>
+#include <utils/threads.h>
+#include <drm/DrmManagerClient.h>
+
+namespace android {
+
+struct AMessage;
+struct AString;
+class  IDataSource;
+struct IMediaHTTPService;
+class String8;
+struct HTTPBase;
+
+class DataSource : public RefBase {
+public:
+    enum Flags {
+        kWantsPrefetching      = 1,
+        kStreamedFromLocalHost = 2,
+        kIsCachingDataSource   = 4,
+        kIsHTTPBasedSource     = 8,
+        kIsLocalFileSource     = 16,
+    };
+
+    static sp<DataSource> CreateFromURI(
+            const sp<IMediaHTTPService> &httpService,
+            const char *uri,
+            const KeyedVector<String8, String8> *headers = NULL,
+            String8 *contentType = NULL,
+            HTTPBase *httpSource = NULL);
+
+    static sp<DataSource> CreateMediaHTTP(const sp<IMediaHTTPService> &httpService);
+    static sp<DataSource> CreateFromIDataSource(const sp<IDataSource> &source);
+    static sp<DataSource> CreateFromFd(int fd, int64_t offset, int64_t length);
+
+    DataSource() {}
+
+    virtual status_t initCheck() const = 0;
+
+    // Returns the number of bytes read, or -1 on failure. It's not an error if
+    // this returns zero; it just means the given offset is equal to, or
+    // beyond, the end of the source.
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size) = 0;
+
+    // Convenience methods:
+    bool getUInt16(off64_t offset, uint16_t *x);
+    bool getUInt24(off64_t offset, uint32_t *x); // 3 byte int, returned as a 32-bit int
+    bool getUInt32(off64_t offset, uint32_t *x);
+    bool getUInt64(off64_t offset, uint64_t *x);
+
+    // Reads in "count" entries of type T into vector *x.
+    // Returns true if "count" entries can be read.
+    // If fewer than "count" entries can be read, return false. In this case,
+    // the output vector *x will still have those entries that were read. Call
+    // x->size() to obtain the number of entries read.
+    // The optional parameter chunkSize specifies how many entries should be
+    // read from the data source at one time into a temporary buffer. Increasing
+    // chunkSize can improve the performance at the cost of extra memory usage.
+    // The default value for chunkSize is set to read at least 4k bytes at a
+    // time, depending on sizeof(T).
+    template <typename T>
+    bool getVector(off64_t offset, Vector<T>* x, size_t count,
+                   size_t chunkSize = (4095 / sizeof(T)) + 1);
+
+    // May return ERROR_UNSUPPORTED.
+    virtual status_t getSize(off64_t *size);
+
+    virtual uint32_t flags() {
+        return 0;
+    }
+
+    virtual String8 toString() {
+        return String8("<unspecified>");
+    }
+
+    virtual status_t reconnectAtOffset(off64_t /*offset*/) {
+        return ERROR_UNSUPPORTED;
+    }
+
+    ////////////////////////////////////////////////////////////////////////////
+
+    // for DRM
+    virtual sp<DecryptHandle> DrmInitialization(const char * /*mime*/ = NULL) {
+        return NULL;
+    }
+    virtual void getDrmInfo(sp<DecryptHandle> &/*handle*/, DrmManagerClient ** /*client*/) {};
+
+    virtual String8 getUri() {
+        return String8();
+    }
+
+    virtual String8 getMIMEType() const;
+
+    virtual void close() {};
+
+    // creates an IDataSource wrapper to the DataSource.
+    virtual sp<IDataSource> asIDataSource();
+
+    // returns a pointer to IDataSource if it is wrapped.
+    virtual sp<IDataSource> getIDataSource() const;
+
+protected:
+    virtual ~DataSource() {}
+
+private:
+    DataSource(const DataSource &);
+    DataSource &operator=(const DataSource &);
+};
+
+template <typename T>
+bool DataSource::getVector(off64_t offset, Vector<T>* x, size_t count,
+                           size_t chunkSize)
+{
+    x->clear();
+    if (chunkSize == 0) {
+        return false;
+    }
+    if (count == 0) {
+        return true;
+    }
+
+    T tmp[chunkSize];
+    ssize_t numBytesRead;
+    size_t numBytesPerChunk = chunkSize * sizeof(T);
+    size_t i;
+
+    for (i = 0; i + chunkSize < count; i += chunkSize) {
+        // This loops is executed when more than chunkSize records need to be
+        // read.
+        numBytesRead = this->readAt(offset, (void*)&tmp, numBytesPerChunk);
+        if (numBytesRead == -1) { // If readAt() returns -1, there is an error.
+            return false;
+        }
+        if (numBytesRead < numBytesPerChunk) {
+            // This case is triggered when the stream ends before the whole
+            // chunk is read.
+            x->appendArray(tmp, (size_t)numBytesRead / sizeof(T));
+            return false;
+        }
+        x->appendArray(tmp, chunkSize);
+        offset += numBytesPerChunk;
+    }
+
+    // There are (count - i) more records to read.
+    // Right now, (count - i) <= chunkSize.
+    // We do the same thing as above, but with chunkSize replaced by count - i.
+    numBytesRead = this->readAt(offset, (void*)&tmp, (count - i) * sizeof(T));
+    if (numBytesRead == -1) {
+        return false;
+    }
+    x->appendArray(tmp, (size_t)numBytesRead / sizeof(T));
+    return x->size() == count;
+}
+
+}  // namespace android
+
+#endif  // DATA_SOURCE_H_
diff --git a/include/media/stagefright/DataURISource.h b/media/libstagefright/include/DataURISource.h
similarity index 100%
rename from include/media/stagefright/DataURISource.h
rename to media/libstagefright/include/DataURISource.h
diff --git a/media/libstagefright/include/FLACExtractor.h b/media/libstagefright/include/FLACExtractor.h
index 5d030b1..51bc139 100644
--- a/media/libstagefright/include/FLACExtractor.h
+++ b/media/libstagefright/include/FLACExtractor.h
@@ -29,7 +29,7 @@
 
 public:
     // Extractor assumes ownership of source
-    FLACExtractor(const sp<DataSource> &source);
+    explicit FLACExtractor(const sp<DataSource> &source);
 
     virtual size_t countTracks();
     virtual sp<IMediaSource> getTrack(size_t index);
diff --git a/media/libstagefright/include/FileSource.h b/media/libstagefright/include/FileSource.h
new file mode 100644
index 0000000..7267e9a
--- /dev/null
+++ b/media/libstagefright/include/FileSource.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FILE_SOURCE_H_
+
+#define FILE_SOURCE_H_
+
+#include <stdio.h>
+
+#include <media/stagefright/DataSource.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/threads.h>
+#include <drm/DrmManagerClient.h>
+
+namespace android {
+
+class FileSource : public DataSource {
+public:
+    FileSource(const char *filename);
+    // FileSource takes ownership and will close the fd
+    FileSource(int fd, int64_t offset, int64_t length);
+
+    virtual status_t initCheck() const;
+
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
+
+    virtual status_t getSize(off64_t *size);
+
+    virtual uint32_t flags() {
+        return kIsLocalFileSource;
+    }
+
+    virtual sp<DecryptHandle> DrmInitialization(const char *mime);
+
+    virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client);
+
+    virtual String8 toString() {
+        return mName;
+    }
+
+    static bool requiresDrm(int fd, int64_t offset, int64_t length, const char *mime);
+
+protected:
+    virtual ~FileSource();
+
+private:
+    int mFd;
+    int64_t mOffset;
+    int64_t mLength;
+    Mutex mLock;
+    String8 mName;
+
+    /*for DRM*/
+    sp<DecryptHandle> mDecryptHandle;
+    DrmManagerClient *mDrmManagerClient;
+    int64_t mDrmBufOffset;
+    ssize_t mDrmBufSize;
+    unsigned char *mDrmBuf;
+
+    ssize_t readAtDRM(off64_t offset, void *data, size_t size);
+
+    FileSource(const FileSource &);
+    FileSource &operator=(const FileSource &);
+};
+
+}  // namespace android
+
+#endif  // FILE_SOURCE_H_
+
diff --git a/media/libstagefright/include/FrameRenderTracker.h b/media/libstagefright/include/FrameRenderTracker.h
new file mode 100644
index 0000000..6cbf85d
--- /dev/null
+++ b/media/libstagefright/include/FrameRenderTracker.h
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FRAME_RENDER_TRACKER_H_
+
+#define FRAME_RENDER_TRACKER_H_
+
+#include <utils/RefBase.h>
+#include <utils/Timers.h>
+#include <system/window.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+
+#include <list>
+
+namespace android {
+
+class Fence;
+class GraphicBuffer;
+
+// Tracks the render information about a frame. Frames go through several states while
+// the render information is tracked:
+//
+// 1. queued frame: mMediaTime and mGraphicBuffer are set for the frame. mFence is the
+// queue fence (read fence). mIndex is negative, and mRenderTimeNs is invalid.
+// Key characteristics: mFence is not NULL and mIndex is negative.
+//
+// 2. dequeued frame: mFence is updated with the dequeue fence (write fence). mIndex is set.
+// Key characteristics: mFence is not NULL and mIndex is non-negative. mRenderTime is still
+// invalid.
+//
+// 3. rendered frame or frame: mFence is cleared, mRenderTimeNs is set.
+// Key characteristics: mFence is NULL.
+//
+struct RenderedFrameInfo {
+    // set by client during onFrameQueued or onFrameRendered
+    int64_t getMediaTimeUs() const  { return mMediaTimeUs; }
+
+    // -1 if frame is not yet rendered
+    nsecs_t getRenderTimeNs() const { return mRenderTimeNs; }
+
+    // set by client during updateRenderInfoForDequeuedBuffer; -1 otherwise
+    ssize_t getIndex() const        { return mIndex; }
+
+    // creates information for a queued frame
+    RenderedFrameInfo(int64_t mediaTimeUs, const sp<GraphicBuffer> &graphicBuffer,
+            const sp<Fence> &fence)
+        : mMediaTimeUs(mediaTimeUs),
+          mRenderTimeNs(-1),
+          mIndex(-1),
+          mGraphicBuffer(graphicBuffer),
+          mFence(fence) {
+    }
+
+    // creates information for a frame rendered on a tunneled surface
+    RenderedFrameInfo(int64_t mediaTimeUs, nsecs_t renderTimeNs)
+        : mMediaTimeUs(mediaTimeUs),
+          mRenderTimeNs(renderTimeNs),
+          mIndex(-1),
+          mGraphicBuffer(NULL),
+          mFence(NULL) {
+    }
+
+private:
+    int64_t mMediaTimeUs;
+    nsecs_t mRenderTimeNs;
+    ssize_t mIndex;         // to be used by client
+    sp<GraphicBuffer> mGraphicBuffer;
+    sp<Fence> mFence;
+
+    friend struct FrameRenderTracker;
+};
+
+struct FrameRenderTracker {
+    typedef RenderedFrameInfo Info;
+
+    FrameRenderTracker();
+
+    void setComponentName(const AString &componentName);
+
+    // clears all tracked frames, and resets last render time
+    void clear(nsecs_t lastRenderTimeNs);
+
+    // called when |graphicBuffer| corresponding to |mediaTimeUs| is
+    // queued to the output surface using |fence|.
+    void onFrameQueued(
+            int64_t mediaTimeUs, const sp<GraphicBuffer> &graphicBuffer, const sp<Fence> &fence);
+
+    // Called when we have dequeued a buffer |buf| from the native window to track render info.
+    // |fenceFd| is the dequeue fence, and |index| is a positive buffer ID to be usable by the
+    // client to track this render info among the dequeued buffers.
+    // Returns pointer to the tracked info, or NULL if buffer is not tracked or if |index|
+    // is negative.
+    Info *updateInfoForDequeuedBuffer(ANativeWindowBuffer *buf, int fenceFd, int index);
+
+    // called when tunneled codec signals frame rendered event
+    // returns BAD_VALUE if systemNano is not monotonic. Otherwise, returns OK.
+    status_t onFrameRendered(int64_t mediaTimeUs, nsecs_t systemNano);
+
+    // Checks to see if any frames have rendered up until |until|. If |until| is NULL or not a
+    // tracked info, this method searches the entire render queue.
+    // Returns list of rendered frames up-until the frame pointed to by |until| or the first
+    // unrendered frame, as well as any dropped frames (those with invalid fence) up-until |until|.
+    // These frames are removed from the render queue.
+    // If |dropIncomplete| is true, unrendered frames up-until |until| will also be dropped from the
+    // queue, allowing all rendered framed up till then to be notified of.
+    // (This will effectively clear the render queue up-until (and including) |until|.)
+    std::list<Info> checkFencesAndGetRenderedFrames(const Info *until, bool dropIncomplete);
+
+    // Stop tracking a queued frame (e.g. if the frame has been discarded). If |info| is NULL or is
+    // not tracked, this method is a no-op. If |index| is specified, all indices larger that |index|
+    // are decremented. This is useful if the untracked frame is deleted from the frame vector.
+    void untrackFrame(const Info *info, ssize_t index = SSIZE_MAX);
+
+    void dumpRenderQueue() const;
+
+    virtual ~FrameRenderTracker();
+
+private:
+
+    // Render information for buffers. Regular surface buffers are queued in the order of
+    // rendering. Tunneled buffers are queued in the order of receipt.
+    std::list<Info> mRenderQueue;
+    nsecs_t mLastRenderTimeNs;
+    AString mComponentName;
+
+    DISALLOW_EVIL_CONSTRUCTORS(FrameRenderTracker);
+};
+
+}  // namespace android
+
+#endif  // FRAME_RENDER_TRACKER_H_
diff --git a/media/libstagefright/include/ID3.h b/media/libstagefright/include/ID3.h
index c2c4a6d..11682f8 100644
--- a/media/libstagefright/include/ID3.h
+++ b/media/libstagefright/include/ID3.h
@@ -35,7 +35,7 @@
         ID3_V2_4,
     };
 
-    ID3(const sp<DataSource> &source, bool ignoreV1 = false, off64_t offset = 0);
+    explicit ID3(const sp<DataSource> &source, bool ignoreV1 = false, off64_t offset = 0);
     ID3(const uint8_t *data, size_t size, bool ignoreV1 = false);
     ~ID3();
 
diff --git a/include/media/stagefright/JPEGSource.h b/media/libstagefright/include/JPEGSource.h
similarity index 100%
rename from include/media/stagefright/JPEGSource.h
rename to media/libstagefright/include/JPEGSource.h
diff --git a/media/libstagefright/include/MPEG2PSExtractor.h b/media/libstagefright/include/MPEG2PSExtractor.h
index c8abfb6..f5471b3 100644
--- a/media/libstagefright/include/MPEG2PSExtractor.h
+++ b/media/libstagefright/include/MPEG2PSExtractor.h
@@ -31,7 +31,7 @@
 class String8;
 
 struct MPEG2PSExtractor : public MediaExtractor {
-    MPEG2PSExtractor(const sp<DataSource> &source);
+    explicit MPEG2PSExtractor(const sp<DataSource> &source);
 
     virtual size_t countTracks();
     virtual sp<IMediaSource> getTrack(size_t index);
diff --git a/media/libstagefright/include/MPEG2TSExtractor.h b/media/libstagefright/include/MPEG2TSExtractor.h
index 34b9606..2a75298f 100644
--- a/media/libstagefright/include/MPEG2TSExtractor.h
+++ b/media/libstagefright/include/MPEG2TSExtractor.h
@@ -37,7 +37,7 @@
 class String8;
 
 struct MPEG2TSExtractor : public MediaExtractor {
-    MPEG2TSExtractor(const sp<DataSource> &source);
+    explicit MPEG2TSExtractor(const sp<DataSource> &source);
 
     virtual size_t countTracks();
     virtual sp<IMediaSource> getTrack(size_t index);
@@ -45,6 +45,8 @@
 
     virtual sp<MetaData> getMetaData();
 
+    virtual status_t setMediaCas(const sp<ICas> &cas) override;
+
     virtual uint32_t flags() const;
     virtual const char * name() { return "MPEG2TSExtractor"; }
 
@@ -70,7 +72,10 @@
 
     off64_t mOffset;
 
+    static bool isScrambledFormat(const sp<MetaData> &format);
+
     void init();
+    void addSource(const sp<AnotherPacketSource> &impl);
     // Try to feed more data from source to parser.
     // |isInit| means this function is called inside init(). This is a signal to
     // save SyncEvent so that init() can add SyncPoint after it updates |mSourceImpls|.
@@ -89,6 +94,8 @@
     // Add a SynPoint derived from |event|.
     void addSyncPoint_l(const ATSParser::SyncEvent &event);
 
+    status_t  estimateDurationsFromTimesUsAtEnd();
+
     DISALLOW_EVIL_CONSTRUCTORS(MPEG2TSExtractor);
 };
 
diff --git a/include/media/stagefright/MPEG2TSWriter.h b/media/libstagefright/include/MPEG2TSWriter.h
similarity index 100%
rename from include/media/stagefright/MPEG2TSWriter.h
rename to media/libstagefright/include/MPEG2TSWriter.h
diff --git a/media/libstagefright/include/MPEG4Extractor.h b/media/libstagefright/include/MPEG4Extractor.h
index 836cb08..f847119 100644
--- a/media/libstagefright/include/MPEG4Extractor.h
+++ b/media/libstagefright/include/MPEG4Extractor.h
@@ -50,7 +50,7 @@
 class MPEG4Extractor : public MediaExtractor {
 public:
     // Extractor assumes ownership of "source".
-    MPEG4Extractor(const sp<DataSource> &source);
+    explicit MPEG4Extractor(const sp<DataSource> &source);
 
     virtual size_t countTracks();
     virtual sp<IMediaSource> getTrack(size_t index);
@@ -66,6 +66,8 @@
 protected:
     virtual ~MPEG4Extractor();
 
+    virtual void populateMetrics();
+
 private:
 
     struct PsshInfo {
@@ -140,6 +142,9 @@
 
     Track *findTrackByMimePrefix(const char *mimePrefix);
 
+    status_t parseAC3SampleEntry(off64_t offset);
+    status_t parseAC3SpecificBox(off64_t offset, uint16_t sampleRate);
+
     MPEG4Extractor(const MPEG4Extractor &);
     MPEG4Extractor &operator=(const MPEG4Extractor &);
 };
diff --git a/media/libstagefright/include/MPEG4Writer.h b/media/libstagefright/include/MPEG4Writer.h
new file mode 100644
index 0000000..39e7d01
--- /dev/null
+++ b/media/libstagefright/include/MPEG4Writer.h
@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MPEG4_WRITER_H_
+
+#define MPEG4_WRITER_H_
+
+#include <stdio.h>
+
+#include <media/IMediaSource.h>
+#include <media/stagefright/MediaWriter.h>
+#include <utils/List.h>
+#include <utils/threads.h>
+#include <media/stagefright/foundation/AHandlerReflector.h>
+#include <media/stagefright/foundation/ALooper.h>
+
+namespace android {
+
+class AMessage;
+class MediaBuffer;
+class MetaData;
+
+class MPEG4Writer : public MediaWriter {
+public:
+    MPEG4Writer(int fd);
+
+    // Limitations
+    // No more than one video and/or one audio source can be added, but
+    // multiple metadata sources can be added.
+    virtual status_t addSource(const sp<IMediaSource> &source);
+
+    // Returns INVALID_OPERATION if there is no source or track.
+    virtual status_t start(MetaData *param = NULL);
+    virtual status_t stop() { return reset(); }
+    virtual status_t pause();
+    virtual bool reachedEOS();
+    virtual status_t dump(int fd, const Vector<String16>& args);
+
+    void beginBox(const char *fourcc);
+    void beginBox(uint32_t id);
+    void writeInt8(int8_t x);
+    void writeInt16(int16_t x);
+    void writeInt32(int32_t x);
+    void writeInt64(int64_t x);
+    void writeCString(const char *s);
+    void writeFourcc(const char *fourcc);
+    void write(const void *data, size_t size);
+    inline size_t write(const void *ptr, size_t size, size_t nmemb);
+    void endBox();
+    uint32_t interleaveDuration() const { return mInterleaveDurationUs; }
+    status_t setInterleaveDuration(uint32_t duration);
+    int32_t getTimeScale() const { return mTimeScale; }
+
+    status_t setGeoData(int latitudex10000, int longitudex10000);
+    status_t setCaptureRate(float captureFps);
+    status_t setTemporalLayerCount(uint32_t layerCount);
+    void notifyApproachingLimit();
+    virtual void setStartTimeOffsetMs(int ms) { mStartTimeOffsetMs = ms; }
+    virtual int32_t getStartTimeOffsetMs() const { return mStartTimeOffsetMs; }
+    virtual status_t setNextFd(int fd);
+
+protected:
+    virtual ~MPEG4Writer();
+
+private:
+    class Track;
+    friend struct AHandlerReflector<MPEG4Writer>;
+
+    enum {
+        kWhatSwitch                          = 'swch',
+    };
+
+    int  mFd;
+    int mNextFd;
+    sp<MetaData> mStartMeta;
+    status_t mInitCheck;
+    bool mIsRealTimeRecording;
+    bool mUse4ByteNalLength;
+    bool mUse32BitOffset;
+    bool mIsFileSizeLimitExplicitlyRequested;
+    bool mPaused;
+    bool mStarted;  // Writer thread + track threads started successfully
+    bool mWriterThreadStarted;  // Only writer thread started successfully
+    bool mSendNotify;
+    off64_t mOffset;
+    off_t mMdatOffset;
+    uint8_t *mMoovBoxBuffer;
+    off64_t mMoovBoxBufferOffset;
+    bool  mWriteMoovBoxToMemory;
+    off64_t mFreeBoxOffset;
+    bool mStreamableFile;
+    off64_t mEstimatedMoovBoxSize;
+    off64_t mMoovExtraSize;
+    uint32_t mInterleaveDurationUs;
+    int32_t mTimeScale;
+    int64_t mStartTimestampUs;
+    int mLatitudex10000;
+    int mLongitudex10000;
+    bool mAreGeoTagsAvailable;
+    int32_t mStartTimeOffsetMs;
+    bool mSwitchPending;
+
+    sp<ALooper> mLooper;
+    sp<AHandlerReflector<MPEG4Writer> > mReflector;
+
+    Mutex mLock;
+
+    List<Track *> mTracks;
+
+    List<off64_t> mBoxes;
+
+    sp<AMessage> mMetaKeys;
+
+    void setStartTimestampUs(int64_t timeUs);
+    int64_t getStartTimestampUs();  // Not const
+    status_t startTracks(MetaData *params);
+    size_t numTracks();
+    int64_t estimateMoovBoxSize(int32_t bitRate);
+
+    struct Chunk {
+        Track               *mTrack;        // Owner
+        int64_t             mTimeStampUs;   // Timestamp of the 1st sample
+        List<MediaBuffer *> mSamples;       // Sample data
+
+        // Convenient constructor
+        Chunk(): mTrack(NULL), mTimeStampUs(0) {}
+
+        Chunk(Track *track, int64_t timeUs, List<MediaBuffer *> samples)
+            : mTrack(track), mTimeStampUs(timeUs), mSamples(samples) {
+        }
+
+    };
+    struct ChunkInfo {
+        Track               *mTrack;        // Owner
+        List<Chunk>         mChunks;        // Remaining chunks to be written
+
+        // Previous chunk timestamp that has been written
+        int64_t mPrevChunkTimestampUs;
+
+        // Max time interval between neighboring chunks
+        int64_t mMaxInterChunkDurUs;
+
+    };
+
+    bool            mIsFirstChunk;
+    volatile bool   mDone;                  // Writer thread is done?
+    pthread_t       mThread;                // Thread id for the writer
+    List<ChunkInfo> mChunkInfos;            // Chunk infos
+    Condition       mChunkReadyCondition;   // Signal that chunks are available
+
+    // Writer thread handling
+    status_t startWriterThread();
+    void stopWriterThread();
+    static void *ThreadWrapper(void *me);
+    void threadFunc();
+
+    // Buffer a single chunk to be written out later.
+    void bufferChunk(const Chunk& chunk);
+
+    // Write all buffered chunks from all tracks
+    void writeAllChunks();
+
+    // Retrieve the proper chunk to write if there is one
+    // Return true if a chunk is found; otherwise, return false.
+    bool findChunkToWrite(Chunk *chunk);
+
+    // Actually write the given chunk to the file.
+    void writeChunkToFile(Chunk* chunk);
+
+    // Adjust other track media clock (presumably wall clock)
+    // based on audio track media clock with the drift time.
+    int64_t mDriftTimeUs;
+    void setDriftTimeUs(int64_t driftTimeUs);
+    int64_t getDriftTimeUs();
+
+    // Return whether the nal length is 4 bytes or 2 bytes
+    // Only makes sense for H.264/AVC
+    bool useNalLengthFour();
+
+    // Return whether the writer is used for real time recording.
+    // In real time recording mode, new samples will be allowed to buffered into
+    // chunks in higher priority thread, even though the file writer has not
+    // drained the chunks yet.
+    // By default, real time recording is on.
+    bool isRealTimeRecording() const;
+
+    void lock();
+    void unlock();
+
+    void initInternal(int fd);
+
+    // Acquire lock before calling these methods
+    off64_t addSample_l(MediaBuffer *buffer);
+    off64_t addLengthPrefixedSample_l(MediaBuffer *buffer);
+    off64_t addMultipleLengthPrefixedSamples_l(MediaBuffer *buffer);
+
+    bool exceedsFileSizeLimit();
+    bool use32BitFileOffset() const;
+    bool exceedsFileDurationLimit();
+    bool approachingFileSizeLimit();
+    bool isFileStreamable() const;
+    void trackProgressStatus(size_t trackId, int64_t timeUs, status_t err = OK);
+    void writeCompositionMatrix(int32_t degrees);
+    void writeMvhdBox(int64_t durationUs);
+    void writeMoovBox(int64_t durationUs);
+    void writeFtypBox(MetaData *param);
+    void writeUdtaBox();
+    void writeGeoDataBox();
+    void writeLatitude(int degreex10000);
+    void writeLongitude(int degreex10000);
+    void finishCurrentSession();
+
+    void addDeviceMeta();
+    void writeHdlr();
+    void writeKeys();
+    void writeIlst();
+    void writeMetaBox();
+    void sendSessionSummary();
+    void release();
+    status_t switchFd();
+    status_t reset(bool stopSource = true);
+
+    static uint32_t getMpeg4Time();
+
+    void onMessageReceived(const sp<AMessage> &msg);
+
+    MPEG4Writer(const MPEG4Writer &);
+    MPEG4Writer &operator=(const MPEG4Writer &);
+};
+
+}  // namespace android
+
+#endif  // MPEG4_WRITER_H_
diff --git a/include/media/stagefright/MediaAdapter.h b/media/libstagefright/include/MediaAdapter.h
similarity index 100%
rename from include/media/stagefright/MediaAdapter.h
rename to media/libstagefright/include/MediaAdapter.h
diff --git a/media/libstagefright/include/MediaBuffer.h b/media/libstagefright/include/MediaBuffer.h
new file mode 100644
index 0000000..2c0ebe7
--- /dev/null
+++ b/media/libstagefright/include/MediaBuffer.h
@@ -0,0 +1,236 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_BUFFER_H_
+
+#define MEDIA_BUFFER_H_
+
+#include <atomic>
+#include <list>
+#include <media/stagefright/foundation/MediaBufferBase.h>
+
+#include <pthread.h>
+
+#include <binder/MemoryDealer.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+struct ABuffer;
+class GraphicBuffer;
+class MediaBuffer;
+class MediaBufferObserver;
+class MetaData;
+
+class MediaBufferObserver {
+public:
+    MediaBufferObserver() {}
+    virtual ~MediaBufferObserver() {}
+
+    virtual void signalBufferReturned(MediaBuffer *buffer) = 0;
+
+private:
+    MediaBufferObserver(const MediaBufferObserver &);
+    MediaBufferObserver &operator=(const MediaBufferObserver &);
+};
+
+class MediaBuffer : public MediaBufferBase {
+public:
+    // allocations larger than or equal to this will use shared memory.
+    static const size_t kSharedMemThreshold = 64 * 1024;
+
+    // The underlying data remains the responsibility of the caller!
+    MediaBuffer(void *data, size_t size);
+
+    explicit MediaBuffer(size_t size);
+
+    explicit MediaBuffer(const sp<GraphicBuffer>& graphicBuffer);
+
+    explicit MediaBuffer(const sp<ABuffer> &buffer);
+
+    MediaBuffer(const sp<IMemory> &mem) :
+        MediaBuffer((uint8_t *)mem->pointer() + sizeof(SharedControl), mem->size()) {
+        // delegate and override mMemory
+        mMemory = mem;
+    }
+
+    // If MediaBufferGroup is set, decrement the local reference count;
+    // if the local reference count drops to 0, return the buffer to the
+    // associated MediaBufferGroup.
+    //
+    // If no MediaBufferGroup is set, the local reference count must be zero
+    // when called, whereupon the MediaBuffer is deleted.
+    virtual void release();
+
+    // Increments the local reference count.
+    // Use only when MediaBufferGroup is set.
+    virtual void add_ref();
+
+    void *data() const;
+    size_t size() const;
+
+    size_t range_offset() const;
+    size_t range_length() const;
+
+    void set_range(size_t offset, size_t length);
+
+    sp<GraphicBuffer> graphicBuffer() const;
+
+    sp<MetaData> meta_data();
+
+    // Clears meta data and resets the range to the full extent.
+    void reset();
+
+    void setObserver(MediaBufferObserver *group);
+
+    // Returns a clone of this MediaBuffer increasing its reference count.
+    // The clone references the same data but has its own range and
+    // MetaData.
+    MediaBuffer *clone();
+
+    // sum of localRefcount() and remoteRefcount()
+    int refcount() const {
+        return localRefcount() + remoteRefcount();
+    }
+
+    int localRefcount() const {
+        return mRefCount;
+    }
+
+    int remoteRefcount() const {
+        if (mMemory.get() == nullptr || mMemory->pointer() == nullptr) return 0;
+        int32_t remoteRefcount =
+                reinterpret_cast<SharedControl *>(mMemory->pointer())->getRemoteRefcount();
+        // Sanity check so that remoteRefCount() is non-negative.
+        return remoteRefcount >= 0 ? remoteRefcount : 0; // do not allow corrupted data.
+    }
+
+    // returns old value
+    int addRemoteRefcount(int32_t value) {
+        if (mMemory.get() == nullptr || mMemory->pointer() == nullptr) return 0;
+        return reinterpret_cast<SharedControl *>(mMemory->pointer())->addRemoteRefcount(value);
+    }
+
+    bool isDeadObject() const {
+        return isDeadObject(mMemory);
+    }
+
+    static bool isDeadObject(const sp<IMemory> &memory) {
+        if (memory.get() == nullptr || memory->pointer() == nullptr) return false;
+        return reinterpret_cast<SharedControl *>(memory->pointer())->isDeadObject();
+    }
+
+    // Sticky on enabling of shared memory MediaBuffers. By default we don't use
+    // shared memory for MediaBuffers, but we enable this for those processes
+    // that export MediaBuffers.
+    static void useSharedMemory() {
+        std::atomic_store_explicit(
+                &mUseSharedMemory, (int_least32_t)1, std::memory_order_seq_cst);
+    }
+
+protected:
+    // true if MediaBuffer is observed (part of a MediaBufferGroup).
+    inline bool isObserved() const {
+        return mObserver != nullptr;
+    }
+
+    virtual ~MediaBuffer();
+
+    sp<IMemory> mMemory;
+
+private:
+    friend class MediaBufferGroup;
+    friend class OMXDecoder;
+    friend class BnMediaSource;
+    friend class BpMediaSource;
+
+    // For use by OMXDecoder, reference count must be 1, drop reference
+    // count to 0 without signalling the observer.
+    void claim();
+
+    MediaBufferObserver *mObserver;
+    int mRefCount;
+
+    void *mData;
+    size_t mSize, mRangeOffset, mRangeLength;
+    sp<GraphicBuffer> mGraphicBuffer;
+    sp<ABuffer> mBuffer;
+
+    bool mOwnsData;
+
+    sp<MetaData> mMetaData;
+
+    MediaBuffer *mOriginal;
+
+    static std::atomic_int_least32_t mUseSharedMemory;
+
+    MediaBuffer(const MediaBuffer &);
+    MediaBuffer &operator=(const MediaBuffer &);
+
+    // SharedControl block at the start of IMemory.
+    struct SharedControl {
+        enum {
+            FLAG_DEAD_OBJECT = (1 << 0),
+        };
+
+        // returns old value
+        inline int32_t addRemoteRefcount(int32_t value) {
+            return std::atomic_fetch_add_explicit(
+                    &mRemoteRefcount, (int_least32_t)value, std::memory_order_seq_cst);
+        }
+
+        inline int32_t getRemoteRefcount() const {
+            return std::atomic_load_explicit(&mRemoteRefcount, std::memory_order_seq_cst);
+        }
+
+        inline void setRemoteRefcount(int32_t value) {
+            std::atomic_store_explicit(
+                    &mRemoteRefcount, (int_least32_t)value, std::memory_order_seq_cst);
+        }
+
+        inline bool isDeadObject() const {
+            return (std::atomic_load_explicit(
+                    &mFlags, std::memory_order_seq_cst) & FLAG_DEAD_OBJECT) != 0;
+        }
+
+        inline void setDeadObject() {
+            (void)std::atomic_fetch_or_explicit(
+                    &mFlags, (int_least32_t)FLAG_DEAD_OBJECT, std::memory_order_seq_cst);
+        }
+
+        inline void clear() {
+            std::atomic_store_explicit(
+                    &mFlags, (int_least32_t)0, std::memory_order_seq_cst);
+            std::atomic_store_explicit(
+                    &mRemoteRefcount, (int_least32_t)0, std::memory_order_seq_cst);
+        }
+
+    private:
+        // Caution: atomic_int_fast32_t is 64 bits on LP64.
+        std::atomic_int_least32_t mFlags;
+        std::atomic_int_least32_t mRemoteRefcount;
+        int32_t unused[6]; // additional buffer space
+    };
+
+    inline SharedControl *getSharedControl() const {
+         return reinterpret_cast<SharedControl *>(mMemory->pointer());
+     }
+};
+
+}  // namespace android
+
+#endif  // MEDIA_BUFFER_H_
diff --git a/include/media/stagefright/MediaBufferGroup.h b/media/libstagefright/include/MediaBufferGroup.h
similarity index 100%
rename from include/media/stagefright/MediaBufferGroup.h
rename to media/libstagefright/include/MediaBufferGroup.h
diff --git a/include/media/stagefright/MediaClock.h b/media/libstagefright/include/MediaClock.h
similarity index 100%
rename from include/media/stagefright/MediaClock.h
rename to media/libstagefright/include/MediaClock.h
diff --git a/media/libstagefright/include/MediaCodec.h b/media/libstagefright/include/MediaCodec.h
new file mode 100644
index 0000000..4140266
--- /dev/null
+++ b/media/libstagefright/include/MediaCodec.h
@@ -0,0 +1,446 @@
+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CODEC_H_
+
+#define MEDIA_CODEC_H_
+
+#include <memory>
+#include <vector>
+
+#include <gui/IGraphicBufferProducer.h>
+#include <media/hardware/CryptoAPI.h>
+#include <media/MediaCodecInfo.h>
+#include <media/MediaResource.h>
+#include <media/MediaAnalyticsItem.h>
+#include <media/stagefright/foundation/AHandler.h>
+#include <media/stagefright/FrameRenderTracker.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+struct ABuffer;
+struct AMessage;
+struct AReplyToken;
+struct AString;
+class BufferChannelBase;
+struct CodecBase;
+class IBatteryStats;
+struct ICrypto;
+class MediaCodecBuffer;
+class IMemory;
+class IResourceManagerClient;
+class IResourceManagerService;
+struct PersistentSurface;
+class SoftwareRenderer;
+class Surface;
+namespace media {
+class IDescrambler;
+};
+using namespace media;
+
+struct MediaCodec : public AHandler {
+    enum ConfigureFlags {
+        CONFIGURE_FLAG_ENCODE   = 1,
+    };
+
+    enum BufferFlags {
+        BUFFER_FLAG_SYNCFRAME   = 1,
+        BUFFER_FLAG_CODECCONFIG = 2,
+        BUFFER_FLAG_EOS         = 4,
+    };
+
+    enum {
+        CB_INPUT_AVAILABLE = 1,
+        CB_OUTPUT_AVAILABLE = 2,
+        CB_ERROR = 3,
+        CB_OUTPUT_FORMAT_CHANGED = 4,
+        CB_RESOURCE_RECLAIMED = 5,
+    };
+
+    static const pid_t kNoPid = -1;
+    static const uid_t kNoUid = -1;
+
+    static sp<MediaCodec> CreateByType(
+            const sp<ALooper> &looper, const AString &mime, bool encoder, status_t *err = NULL,
+            pid_t pid = kNoPid, uid_t uid = kNoUid);
+
+    static sp<MediaCodec> CreateByComponentName(
+            const sp<ALooper> &looper, const AString &name, status_t *err = NULL,
+            pid_t pid = kNoPid, uid_t uid = kNoUid);
+
+    static sp<PersistentSurface> CreatePersistentInputSurface();
+
+    // utility method to query capabilities
+    static status_t QueryCapabilities(
+            const AString &name, const AString &mime, bool isEncoder,
+            sp<MediaCodecInfo::Capabilities> *caps /* nonnull */);
+
+    status_t configure(
+            const sp<AMessage> &format,
+            const sp<Surface> &nativeWindow,
+            const sp<ICrypto> &crypto,
+            uint32_t flags);
+
+    status_t configure(
+            const sp<AMessage> &format,
+            const sp<Surface> &nativeWindow,
+            const sp<ICrypto> &crypto,
+            const sp<IDescrambler> &descrambler,
+            uint32_t flags);
+
+    status_t releaseCrypto();
+
+    status_t setCallback(const sp<AMessage> &callback);
+
+    status_t setOnFrameRenderedNotification(const sp<AMessage> &notify);
+
+    status_t createInputSurface(sp<IGraphicBufferProducer>* bufferProducer);
+
+    status_t setInputSurface(const sp<PersistentSurface> &surface);
+
+    status_t start();
+
+    // Returns to a state in which the component remains allocated but
+    // unconfigured.
+    status_t stop();
+
+    // Resets the codec to the INITIALIZED state.  Can be called after an error
+    // has occured to make the codec usable.
+    status_t reset();
+
+    // Client MUST call release before releasing final reference to this
+    // object.
+    status_t release();
+
+    status_t flush();
+
+    status_t queueInputBuffer(
+            size_t index,
+            size_t offset,
+            size_t size,
+            int64_t presentationTimeUs,
+            uint32_t flags,
+            AString *errorDetailMsg = NULL);
+
+    status_t queueSecureInputBuffer(
+            size_t index,
+            size_t offset,
+            const CryptoPlugin::SubSample *subSamples,
+            size_t numSubSamples,
+            const uint8_t key[16],
+            const uint8_t iv[16],
+            CryptoPlugin::Mode mode,
+            const CryptoPlugin::Pattern &pattern,
+            int64_t presentationTimeUs,
+            uint32_t flags,
+            AString *errorDetailMsg = NULL);
+
+    status_t dequeueInputBuffer(size_t *index, int64_t timeoutUs = 0ll);
+
+    status_t dequeueOutputBuffer(
+            size_t *index,
+            size_t *offset,
+            size_t *size,
+            int64_t *presentationTimeUs,
+            uint32_t *flags,
+            int64_t timeoutUs = 0ll);
+
+    status_t renderOutputBufferAndRelease(size_t index, int64_t timestampNs);
+    status_t renderOutputBufferAndRelease(size_t index);
+    status_t releaseOutputBuffer(size_t index);
+
+    status_t signalEndOfInputStream();
+
+    status_t getOutputFormat(sp<AMessage> *format) const;
+    status_t getInputFormat(sp<AMessage> *format) const;
+
+    status_t getInputBuffers(Vector<sp<MediaCodecBuffer> > *buffers) const;
+    status_t getOutputBuffers(Vector<sp<MediaCodecBuffer> > *buffers) const;
+
+    status_t getOutputBuffer(size_t index, sp<MediaCodecBuffer> *buffer);
+    status_t getOutputFormat(size_t index, sp<AMessage> *format);
+    status_t getInputBuffer(size_t index, sp<MediaCodecBuffer> *buffer);
+
+    status_t setSurface(const sp<Surface> &nativeWindow);
+
+    status_t requestIDRFrame();
+
+    // Notification will be posted once there "is something to do", i.e.
+    // an input/output buffer has become available, a format change is
+    // pending, an error is pending.
+    void requestActivityNotification(const sp<AMessage> &notify);
+
+    status_t getName(AString *componentName) const;
+
+    status_t getMetrics(MediaAnalyticsItem * &reply);
+
+    status_t setParameters(const sp<AMessage> &params);
+
+    // Create a MediaCodec notification message from a list of rendered or dropped render infos
+    // by adding rendered frame information to a base notification message. Returns the number
+    // of frames that were rendered.
+    static size_t CreateFramesRenderedMessage(
+            const std::list<FrameRenderTracker::Info> &done, sp<AMessage> &msg);
+
+protected:
+    virtual ~MediaCodec();
+    virtual void onMessageReceived(const sp<AMessage> &msg);
+
+private:
+    // used by ResourceManagerClient
+    status_t reclaim(bool force = false);
+    friend struct ResourceManagerClient;
+
+private:
+    enum State {
+        UNINITIALIZED,
+        INITIALIZING,
+        INITIALIZED,
+        CONFIGURING,
+        CONFIGURED,
+        STARTING,
+        STARTED,
+        FLUSHING,
+        FLUSHED,
+        STOPPING,
+        RELEASING,
+    };
+
+    enum {
+        kPortIndexInput         = 0,
+        kPortIndexOutput        = 1,
+    };
+
+    enum {
+        kWhatInit                           = 'init',
+        kWhatConfigure                      = 'conf',
+        kWhatSetSurface                     = 'sSur',
+        kWhatCreateInputSurface             = 'cisf',
+        kWhatSetInputSurface                = 'sisf',
+        kWhatStart                          = 'strt',
+        kWhatStop                           = 'stop',
+        kWhatRelease                        = 'rele',
+        kWhatDequeueInputBuffer             = 'deqI',
+        kWhatQueueInputBuffer               = 'queI',
+        kWhatDequeueOutputBuffer            = 'deqO',
+        kWhatReleaseOutputBuffer            = 'relO',
+        kWhatSignalEndOfInputStream         = 'eois',
+        kWhatGetBuffers                     = 'getB',
+        kWhatFlush                          = 'flus',
+        kWhatGetOutputFormat                = 'getO',
+        kWhatGetInputFormat                 = 'getI',
+        kWhatDequeueInputTimedOut           = 'dITO',
+        kWhatDequeueOutputTimedOut          = 'dOTO',
+        kWhatCodecNotify                    = 'codc',
+        kWhatRequestIDRFrame                = 'ridr',
+        kWhatRequestActivityNotification    = 'racN',
+        kWhatGetName                        = 'getN',
+        kWhatSetParameters                  = 'setP',
+        kWhatSetCallback                    = 'setC',
+        kWhatSetNotification                = 'setN',
+        kWhatDrmReleaseCrypto               = 'rDrm',
+    };
+
+    enum {
+        kFlagUsesSoftwareRenderer       = 1,
+        kFlagOutputFormatChanged        = 2,
+        kFlagOutputBuffersChanged       = 4,
+        kFlagStickyError                = 8,
+        kFlagDequeueInputPending        = 16,
+        kFlagDequeueOutputPending       = 32,
+        kFlagIsSecure                   = 64,
+        kFlagSawMediaServerDie          = 128,
+        kFlagIsEncoder                  = 256,
+        // 512 skipped
+        kFlagIsAsync                    = 1024,
+        kFlagIsComponentAllocated       = 2048,
+        kFlagPushBlankBuffersOnShutdown = 4096,
+    };
+
+    struct BufferInfo {
+        BufferInfo();
+
+        sp<MediaCodecBuffer> mData;
+        bool mOwnedByClient;
+    };
+
+    struct ResourceManagerServiceProxy : public IBinder::DeathRecipient {
+        ResourceManagerServiceProxy(pid_t pid);
+        ~ResourceManagerServiceProxy();
+
+        void init();
+
+        // implements DeathRecipient
+        virtual void binderDied(const wp<IBinder>& /*who*/);
+
+        void addResource(
+                int64_t clientId,
+                const sp<IResourceManagerClient> &client,
+                const Vector<MediaResource> &resources);
+
+        void removeResource(int64_t clientId);
+
+        bool reclaimResource(const Vector<MediaResource> &resources);
+
+    private:
+        Mutex mLock;
+        sp<IResourceManagerService> mService;
+        pid_t mPid;
+    };
+
+    State mState;
+    uid_t mUid;
+    bool mReleasedByResourceManager;
+    sp<ALooper> mLooper;
+    sp<ALooper> mCodecLooper;
+    sp<CodecBase> mCodec;
+    AString mComponentName;
+    sp<AReplyToken> mReplyID;
+    uint32_t mFlags;
+    status_t mStickyError;
+    sp<Surface> mSurface;
+    SoftwareRenderer *mSoftRenderer;
+
+    MediaAnalyticsItem *mAnalyticsItem;
+
+    sp<AMessage> mOutputFormat;
+    sp<AMessage> mInputFormat;
+    sp<AMessage> mCallback;
+    sp<AMessage> mOnFrameRenderedNotification;
+
+    sp<IResourceManagerClient> mResourceManagerClient;
+    sp<ResourceManagerServiceProxy> mResourceManagerService;
+
+    bool mBatteryStatNotified;
+    bool mIsVideo;
+    int32_t mVideoWidth;
+    int32_t mVideoHeight;
+    int32_t mRotationDegrees;
+
+    // initial create parameters
+    AString mInitName;
+    bool mInitNameIsType;
+    bool mInitIsEncoder;
+
+    // configure parameter
+    sp<AMessage> mConfigureMsg;
+
+    // Used only to synchronize asynchronous getBufferAndFormat
+    // across all the other (synchronous) buffer state change
+    // operations, such as de/queueIn/OutputBuffer, start and
+    // stop/flush/reset/release.
+    Mutex mBufferLock;
+
+    List<size_t> mAvailPortBuffers[2];
+    std::vector<BufferInfo> mPortBuffers[2];
+
+    int32_t mDequeueInputTimeoutGeneration;
+    sp<AReplyToken> mDequeueInputReplyID;
+
+    int32_t mDequeueOutputTimeoutGeneration;
+    sp<AReplyToken> mDequeueOutputReplyID;
+
+    sp<ICrypto> mCrypto;
+
+    sp<IDescrambler> mDescrambler;
+
+    List<sp<ABuffer> > mCSD;
+
+    sp<AMessage> mActivityNotify;
+
+    bool mHaveInputSurface;
+    bool mHavePendingInputBuffers;
+
+    std::shared_ptr<BufferChannelBase> mBufferChannel;
+
+    MediaCodec(const sp<ALooper> &looper, pid_t pid, uid_t uid);
+
+    static sp<CodecBase> GetCodecBase(const AString &name, bool nameIsType = false);
+
+    static status_t PostAndAwaitResponse(
+            const sp<AMessage> &msg, sp<AMessage> *response);
+
+    void PostReplyWithError(const sp<AReplyToken> &replyID, int32_t err);
+
+    status_t init(const AString &name, bool nameIsType, bool encoder);
+
+    void setState(State newState);
+    void returnBuffersToCodec(bool isReclaim = false);
+    void returnBuffersToCodecOnPort(int32_t portIndex, bool isReclaim = false);
+    size_t updateBuffers(int32_t portIndex, const sp<AMessage> &msg);
+    status_t onQueueInputBuffer(const sp<AMessage> &msg);
+    status_t onReleaseOutputBuffer(const sp<AMessage> &msg);
+    ssize_t dequeuePortBuffer(int32_t portIndex);
+
+    status_t getBufferAndFormat(
+            size_t portIndex, size_t index,
+            sp<MediaCodecBuffer> *buffer, sp<AMessage> *format);
+
+    bool handleDequeueInputBuffer(const sp<AReplyToken> &replyID, bool newRequest = false);
+    bool handleDequeueOutputBuffer(const sp<AReplyToken> &replyID, bool newRequest = false);
+    void cancelPendingDequeueOperations();
+
+    void extractCSD(const sp<AMessage> &format);
+    status_t queueCSDInputBuffer(size_t bufferIndex);
+
+    status_t handleSetSurface(const sp<Surface> &surface);
+    status_t connectToSurface(const sp<Surface> &surface);
+    status_t disconnectFromSurface();
+
+    bool hasCryptoOrDescrambler() {
+        return mCrypto != NULL || mDescrambler != NULL;
+    }
+
+    void postActivityNotificationIfPossible();
+
+    void onInputBufferAvailable();
+    void onOutputBufferAvailable();
+    void onError(status_t err, int32_t actionCode, const char *detail = NULL);
+    void onOutputFormatChanged();
+
+    status_t onSetParameters(const sp<AMessage> &params);
+
+    status_t amendOutputFormatWithCodecSpecificData(const sp<MediaCodecBuffer> &buffer);
+    void updateBatteryStat();
+    bool isExecuting() const;
+
+    uint64_t getGraphicBufferSize();
+    void addResource(MediaResource::Type type, MediaResource::SubType subtype, uint64_t value);
+
+    bool hasPendingBuffer(int portIndex);
+    bool hasPendingBuffer();
+
+    /* called to get the last codec error when the sticky flag is set.
+     * if no such codec error is found, returns UNKNOWN_ERROR.
+     */
+    inline status_t getStickyError() const {
+        return mStickyError != 0 ? mStickyError : UNKNOWN_ERROR;
+    }
+
+    inline void setStickyError(status_t err) {
+        mFlags |= kFlagStickyError;
+        mStickyError = err;
+    }
+
+    void onReleaseCrypto(const sp<AMessage>& msg);
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaCodec);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_CODEC_H_
diff --git a/media/libstagefright/include/MediaCodecList.h b/media/libstagefright/include/MediaCodecList.h
new file mode 100644
index 0000000..430bc16
--- /dev/null
+++ b/media/libstagefright/include/MediaCodecList.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CODEC_LIST_H_
+
+#define MEDIA_CODEC_LIST_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/foundation/AString.h>
+#include <media/IMediaCodecList.h>
+#include <media/IOMX.h>
+#include <media/MediaCodecInfo.h>
+
+#include <sys/types.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/Vector.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+extern const char *kMaxEncoderInputBuffers;
+
+struct AMessage;
+
+struct MediaCodecList : public BnMediaCodecList {
+    static sp<IMediaCodecList> getInstance();
+
+    virtual ssize_t findCodecByType(
+            const char *type, bool encoder, size_t startIndex = 0) const;
+
+    virtual ssize_t findCodecByName(const char *name) const;
+
+    virtual size_t countCodecs() const;
+
+    virtual sp<MediaCodecInfo> getCodecInfo(size_t index) const {
+        if (index >= mCodecInfos.size()) {
+            ALOGE("b/24445127");
+            return NULL;
+        }
+        return mCodecInfos.itemAt(index);
+    }
+
+    virtual const sp<AMessage> getGlobalSettings() const;
+
+    // to be used by MediaPlayerService alone
+    static sp<IMediaCodecList> getLocalInstance();
+
+    // only to be used by getLocalInstance
+    static void *profilerThreadWrapper(void * /*arg*/);
+
+    // only to be used by MediaPlayerService
+    void parseTopLevelXMLFile(const char *path, bool ignore_errors = false);
+
+    enum Flags {
+        kPreferSoftwareCodecs   = 1,
+        kHardwareCodecsOnly     = 2,
+    };
+
+    static void findMatchingCodecs(
+            const char *mime,
+            bool createEncoder,
+            uint32_t flags,
+            Vector<AString> *matching);
+
+    static uint32_t getQuirksFor(const char *mComponentName);
+
+    static bool isSoftwareCodec(const AString &componentName);
+
+
+private:
+    class BinderDeathObserver : public IBinder::DeathRecipient {
+        void binderDied(const wp<IBinder> &the_late_who __unused);
+    };
+
+    static sp<BinderDeathObserver> sBinderDeathObserver;
+
+    enum Section {
+        SECTION_TOPLEVEL,
+        SECTION_SETTINGS,
+        SECTION_DECODERS,
+        SECTION_DECODER,
+        SECTION_DECODER_TYPE,
+        SECTION_ENCODERS,
+        SECTION_ENCODER,
+        SECTION_ENCODER_TYPE,
+        SECTION_INCLUDE,
+    };
+
+    static sp<IMediaCodecList> sCodecList;
+    static sp<IMediaCodecList> sRemoteList;
+
+    status_t mInitCheck;
+    Section mCurrentSection;
+    bool mUpdate;
+    Vector<Section> mPastSections;
+    int32_t mDepth;
+    AString mHrefBase;
+
+    sp<AMessage> mGlobalSettings;
+    KeyedVector<AString, CodecSettings> mOverrides;
+
+    Vector<sp<MediaCodecInfo> > mCodecInfos;
+    sp<MediaCodecInfo> mCurrentInfo;
+
+    MediaCodecList();
+    ~MediaCodecList();
+
+    status_t initCheck() const;
+    void parseXMLFile(const char *path);
+
+    static void StartElementHandlerWrapper(
+            void *me, const char *name, const char **attrs);
+
+    static void EndElementHandlerWrapper(void *me, const char *name);
+
+    void startElementHandler(const char *name, const char **attrs);
+    void endElementHandler(const char *name);
+
+    status_t includeXMLFile(const char **attrs);
+    status_t addSettingFromAttributes(const char **attrs);
+    status_t addMediaCodecFromAttributes(bool encoder, const char **attrs);
+    void addMediaCodec(bool encoder, const char *name, const char *type = NULL);
+
+    void setCurrentCodecInfo(bool encoder, const char *name, const char *type);
+
+    status_t addQuirk(const char **attrs);
+    status_t addTypeFromAttributes(const char **attrs);
+    status_t addLimit(const char **attrs);
+    status_t addFeature(const char **attrs);
+    void addType(const char *name);
+
+    status_t initializeCapabilities(const char *type);
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaCodecList);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_CODEC_LIST_H_
+
diff --git a/media/libstagefright/include/MediaCodecSource.h b/media/libstagefright/include/MediaCodecSource.h
new file mode 100644
index 0000000..5e99b78
--- /dev/null
+++ b/media/libstagefright/include/MediaCodecSource.h
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MediaCodecSource_H_
+#define MediaCodecSource_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/foundation/AHandlerReflector.h>
+#include <media/stagefright/foundation/Mutexed.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/stagefright/PersistentSurface.h>
+
+namespace android {
+
+struct ALooper;
+struct AMessage;
+struct AReplyToken;
+class IGraphicBufferProducer;
+struct MediaCodec;
+class MetaData;
+
+struct MediaCodecSource : public MediaSource,
+                          public MediaBufferObserver {
+    enum FlagBits {
+        FLAG_USE_SURFACE_INPUT      = 1,
+        FLAG_PREFER_SOFTWARE_CODEC  = 4,  // used for testing only
+    };
+
+    static sp<MediaCodecSource> Create(
+            const sp<ALooper> &looper,
+            const sp<AMessage> &format,
+            const sp<MediaSource> &source,
+            const sp<PersistentSurface> &persistentSurface = NULL,
+            uint32_t flags = 0);
+
+    bool isVideo() const { return mIsVideo; }
+    sp<IGraphicBufferProducer> getGraphicBufferProducer();
+    status_t setInputBufferTimeOffset(int64_t timeOffsetUs);
+    int64_t getFirstSampleSystemTimeUs();
+
+    // MediaSource
+    virtual status_t start(MetaData *params = NULL);
+    virtual status_t stop();
+    virtual status_t pause(MetaData *params = NULL);
+    virtual sp<MetaData> getFormat();
+    virtual status_t read(
+            MediaBuffer **buffer,
+            const ReadOptions *options = NULL);
+
+    // MediaBufferObserver
+    virtual void signalBufferReturned(MediaBuffer *buffer);
+
+    // for AHandlerReflector
+    void onMessageReceived(const sp<AMessage> &msg);
+
+    // Set GraphicBufferSource stop time. GraphicBufferSource will stop
+    // after receiving a buffer with timestamp larger or equal than stopTimeUs.
+    // All the buffers with timestamp larger or equal to stopTimeUs will be
+    // discarded. stopTimeUs uses SYSTEM_TIME_MONOTONIC time base.
+    status_t setStopStimeUs(int64_t stopTimeUs);
+
+protected:
+    virtual ~MediaCodecSource();
+
+private:
+    struct Puller;
+
+    enum {
+        kWhatPullerNotify,
+        kWhatEncoderActivity,
+        kWhatStart,
+        kWhatStop,
+        kWhatPause,
+        kWhatSetInputBufferTimeOffset,
+        kWhatSetStopTimeOffset,
+        kWhatGetFirstSampleSystemTimeUs,
+        kWhatStopStalled,
+    };
+
+    MediaCodecSource(
+            const sp<ALooper> &looper,
+            const sp<AMessage> &outputFormat,
+            const sp<MediaSource> &source,
+            const sp<PersistentSurface> &persistentSurface,
+            uint32_t flags = 0);
+
+    status_t onStart(MetaData *params);
+
+    // Pause the source at pauseStartTimeUs. For non-surface input,
+    // buffers will be dropped immediately. For surface input, buffers
+    // with timestamp smaller than pauseStartTimeUs will still be encoded.
+    // Buffers with timestamp larger or queal to pauseStartTimeUs will be
+    // dropped. pauseStartTimeUs uses SYSTEM_TIME_MONOTONIC time base.
+    void onPause(int64_t pauseStartTimeUs);
+
+    status_t init();
+    status_t initEncoder();
+    void releaseEncoder();
+    status_t feedEncoderInputBuffers();
+    // Resume GraphicBufferSource at resumeStartTimeUs. Buffers
+    // from GraphicBufferSource with timestamp larger or equal to
+    // resumeStartTimeUs will be encoded. resumeStartTimeUs uses
+    // SYSTEM_TIME_MONOTONIC time base.
+    void resume(int64_t resumeStartTimeUs = -1ll);
+    void signalEOS(status_t err = ERROR_END_OF_STREAM);
+    bool reachedEOS();
+    status_t postSynchronouslyAndReturnError(const sp<AMessage> &msg);
+
+    sp<ALooper> mLooper;
+    sp<ALooper> mCodecLooper;
+    sp<AHandlerReflector<MediaCodecSource> > mReflector;
+    sp<AMessage> mOutputFormat;
+    Mutexed<sp<MetaData>> mMeta;
+    sp<Puller> mPuller;
+    sp<MediaCodec> mEncoder;
+    uint32_t mFlags;
+    List<sp<AReplyToken>> mStopReplyIDQueue;
+    bool mIsVideo;
+    bool mStarted;
+    bool mStopping;
+    bool mDoMoreWorkPending;
+    bool mSetEncoderFormat;
+    int32_t mEncoderFormat;
+    int32_t mEncoderDataSpace;
+    sp<AMessage> mEncoderActivityNotify;
+    sp<IGraphicBufferProducer> mGraphicBufferProducer;
+    sp<PersistentSurface> mPersistentSurface;
+    List<MediaBuffer *> mInputBufferQueue;
+    List<size_t> mAvailEncoderInputIndices;
+    List<int64_t> mDecodingTimeQueue; // decoding time (us) for video
+    int64_t mInputBufferTimeOffsetUs;
+    int64_t mFirstSampleSystemTimeUs;
+    bool mPausePending;
+
+    // audio drift time
+    int64_t mFirstSampleTimeUs;
+    List<int64_t> mDriftTimeQueue;
+
+    struct Output {
+        Output();
+        List<MediaBuffer*> mBufferQueue;
+        bool mEncoderReachedEOS;
+        status_t mErrorCode;
+        Condition mCond;
+    };
+    Mutexed<Output> mOutput;
+
+    int32_t mGeneration;
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaCodecSource);
+};
+
+} // namespace android
+
+#endif /* MediaCodecSource_H_ */
diff --git a/media/libstagefright/include/MediaDefs.h b/media/libstagefright/include/MediaDefs.h
new file mode 100644
index 0000000..359fb69
--- /dev/null
+++ b/media/libstagefright/include/MediaDefs.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef STAGEFRIGHT_MEDIA_DEFS_H_
+#define STAGEFRIGHT_MEDIA_DEFS_H_
+
+/*
+ * Please, DO NOT USE!
+ *
+ * This file is here only for legacy reasons. Instead, include directly
+ * the header below.
+ *
+ */
+
+#include <media/MediaDefs.h>
+
+#endif  // STAGEFRIGHT_MEDIA_DEFS_H_
diff --git a/include/media/stagefright/MediaErrors.h b/media/libstagefright/include/MediaErrors.h
similarity index 100%
rename from include/media/stagefright/MediaErrors.h
rename to media/libstagefright/include/MediaErrors.h
diff --git a/media/libstagefright/include/MediaExtractor.h b/media/libstagefright/include/MediaExtractor.h
new file mode 100644
index 0000000..073391f
--- /dev/null
+++ b/media/libstagefright/include/MediaExtractor.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_EXTRACTOR_H_
+
+#define MEDIA_EXTRACTOR_H_
+
+#include <media/IMediaExtractor.h>
+#include <media/IMediaSource.h>
+#include <media/MediaAnalyticsItem.h>
+
+namespace android {
+namespace media {
+class ICas;
+};
+using namespace media;
+class DataSource;
+struct MediaSource;
+class MetaData;
+
+class MediaExtractor : public BnMediaExtractor {
+public:
+    static sp<IMediaExtractor> Create(
+            const sp<DataSource> &source, const char *mime = NULL);
+    static sp<MediaExtractor> CreateFromService(
+            const sp<DataSource> &source, const char *mime = NULL);
+
+    virtual size_t countTracks() = 0;
+    virtual sp<IMediaSource> getTrack(size_t index) = 0;
+
+    enum GetTrackMetaDataFlags {
+        kIncludeExtensiveMetaData = 1
+    };
+    virtual sp<MetaData> getTrackMetaData(
+            size_t index, uint32_t flags = 0) = 0;
+
+    // Return container specific meta-data. The default implementation
+    // returns an empty metadata object.
+    virtual sp<MetaData> getMetaData();
+
+    status_t getMetrics(Parcel *reply);
+
+    enum Flags {
+        CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
+        CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
+        CAN_PAUSE          = 4,
+        CAN_SEEK           = 8,  // the "seek bar"
+    };
+
+    // If subclasses do _not_ override this, the default is
+    // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
+    virtual uint32_t flags() const;
+
+    // for DRM
+    virtual char* getDrmTrackInfo(size_t /*trackID*/, int * /*len*/) {
+        return NULL;
+    }
+    virtual void setUID(uid_t /*uid*/) {
+    }
+    virtual status_t setMediaCas(const sp<ICas> &cas) override {
+        return INVALID_OPERATION;
+    }
+
+    virtual const char * name() { return "<unspecified>"; }
+
+protected:
+    MediaExtractor();
+    virtual ~MediaExtractor();
+
+    MediaAnalyticsItem *mAnalyticsItem;
+
+    virtual void populateMetrics();
+
+private:
+
+    typedef bool (*SnifferFunc)(
+            const sp<DataSource> &source, String8 *mimeType,
+            float *confidence, sp<AMessage> *meta);
+
+    static Mutex gSnifferMutex;
+    static List<SnifferFunc> gSniffers;
+    static bool gSniffersRegistered;
+
+    // The sniffer can optionally fill in "meta" with an AMessage containing
+    // a dictionary of values that helps the corresponding extractor initialize
+    // its state without duplicating effort already exerted by the sniffer.
+    static void RegisterSniffer_l(SnifferFunc func);
+
+    static bool sniff(const sp<DataSource> &source,
+            String8 *mimeType, float *confidence, sp<AMessage> *meta);
+
+    static void RegisterDefaultSniffers();
+
+    MediaExtractor(const MediaExtractor &);
+    MediaExtractor &operator=(const MediaExtractor &);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_EXTRACTOR_H_
diff --git a/media/libstagefright/include/MediaFilter.h b/media/libstagefright/include/MediaFilter.h
new file mode 100644
index 0000000..0c10d11
--- /dev/null
+++ b/media/libstagefright/include/MediaFilter.h
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_FILTER_H_
+#define MEDIA_FILTER_H_
+
+#include <media/stagefright/CodecBase.h>
+
+namespace android {
+
+class ACodecBufferChannel;
+struct GraphicBufferListener;
+class MemoryDealer;
+struct SimpleFilter;
+
+struct MediaFilter : public CodecBase {
+    MediaFilter();
+
+    virtual std::shared_ptr<BufferChannelBase> getBufferChannel() override;
+    virtual void initiateAllocateComponent(const sp<AMessage> &msg);
+    virtual void initiateConfigureComponent(const sp<AMessage> &msg);
+    virtual void initiateCreateInputSurface();
+    virtual void initiateSetInputSurface(const sp<PersistentSurface> &surface);
+
+    virtual void initiateStart();
+    virtual void initiateShutdown(bool keepComponentAllocated = false);
+
+    virtual void signalFlush();
+    virtual void signalResume();
+
+    virtual void signalRequestIDRFrame();
+    virtual void signalSetParameters(const sp<AMessage> &msg);
+    virtual void signalEndOfInputStream();
+
+    virtual void onMessageReceived(const sp<AMessage> &msg);
+
+protected:
+    virtual ~MediaFilter();
+
+private:
+    struct BufferInfo {
+        enum Status {
+            OWNED_BY_US,
+            OWNED_BY_UPSTREAM,
+        };
+
+        IOMX::buffer_id mBufferID;
+        int32_t mGeneration;
+        int32_t mOutputFlags;
+        Status mStatus;
+
+        sp<MediaCodecBuffer> mData;
+    };
+
+    enum State {
+      UNINITIALIZED,
+      INITIALIZED,
+      CONFIGURED,
+      STARTED,
+    };
+
+    enum {
+        kWhatInputBufferFilled       = 'inpF',
+        kWhatOutputBufferDrained     = 'outD',
+        kWhatShutdown                = 'shut',
+        kWhatFlush                   = 'flus',
+        kWhatResume                  = 'resm',
+        kWhatAllocateComponent       = 'allo',
+        kWhatConfigureComponent      = 'conf',
+        kWhatCreateInputSurface      = 'cisf',
+        kWhatSignalEndOfInputStream  = 'eois',
+        kWhatStart                   = 'star',
+        kWhatSetParameters           = 'setP',
+        kWhatProcessBuffers          = 'proc',
+    };
+
+    enum {
+        kPortIndexInput  = 0,
+        kPortIndexOutput = 1
+    };
+
+    // member variables
+    AString mComponentName;
+    State mState;
+    status_t mInputEOSResult;
+    int32_t mWidth, mHeight;
+    int32_t mStride, mSliceHeight;
+    int32_t mColorFormatIn, mColorFormatOut;
+    size_t mMaxInputSize, mMaxOutputSize;
+    int32_t mGeneration;
+    sp<AMessage> mInputFormat;
+    sp<AMessage> mOutputFormat;
+
+    sp<MemoryDealer> mDealer[2];
+    Vector<BufferInfo> mBuffers[2];
+    Vector<BufferInfo*> mAvailableInputBuffers;
+    Vector<BufferInfo*> mAvailableOutputBuffers;
+    bool mPortEOS[2];
+
+    sp<SimpleFilter> mFilter;
+    sp<GraphicBufferListener> mGraphicBufferListener;
+
+    std::shared_ptr<ACodecBufferChannel> mBufferChannel;
+
+    // helper functions
+    void signalProcessBuffers();
+    void signalError(status_t error);
+
+    status_t allocateBuffersOnPort(OMX_U32 portIndex);
+    BufferInfo *findBufferByID(
+            uint32_t portIndex, IOMX::buffer_id bufferID,
+            ssize_t *index = NULL);
+    void postFillThisBuffer(BufferInfo *info);
+    void postDrainThisBuffer(BufferInfo *info);
+    void postEOS();
+    void requestFillEmptyInput();
+    void processBuffers();
+
+    void onAllocateComponent(const sp<AMessage> &msg);
+    void onConfigureComponent(const sp<AMessage> &msg);
+    void onStart();
+    void onInputBufferFilled(const sp<AMessage> &msg);
+    void onOutputBufferDrained(const sp<AMessage> &msg);
+    void onShutdown(const sp<AMessage> &msg);
+    void onFlush();
+    void onSetParameters(const sp<AMessage> &msg);
+    void onCreateInputSurface();
+    void onInputFrameAvailable();
+    void onSignalEndOfInputStream();
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaFilter);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_FILTER_H_
diff --git a/include/media/stagefright/MediaHTTP.h b/media/libstagefright/include/MediaHTTP.h
similarity index 100%
rename from include/media/stagefright/MediaHTTP.h
rename to media/libstagefright/include/MediaHTTP.h
diff --git a/media/libstagefright/include/MediaMuxer.h b/media/libstagefright/include/MediaMuxer.h
new file mode 100644
index 0000000..63c3ca5
--- /dev/null
+++ b/media/libstagefright/include/MediaMuxer.h
@@ -0,0 +1,140 @@
+/*
+ * Copyright 2013, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_MUXER_H_
+#define MEDIA_MUXER_H_
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/Vector.h>
+#include <utils/threads.h>
+
+#include "foundation/ABase.h"
+
+namespace android {
+
+struct ABuffer;
+struct AMessage;
+struct MediaAdapter;
+class MediaBuffer;
+struct MediaSource;
+class MetaData;
+struct MediaWriter;
+
+// MediaMuxer is used to mux multiple tracks into a video. Currently, we only
+// support a mp4 file as the output.
+// The expected calling order of the functions is:
+// Constructor -> addTrack+ -> start -> writeSampleData+ -> stop
+// If muxing operation need to be cancelled, the app is responsible for
+// deleting the output file after stop.
+struct MediaMuxer : public RefBase {
+public:
+    // Please update media/java/android/media/MediaMuxer.java if the
+    // OutputFormat is updated.
+    enum OutputFormat {
+        OUTPUT_FORMAT_MPEG_4      = 0,
+        OUTPUT_FORMAT_WEBM        = 1,
+        OUTPUT_FORMAT_THREE_GPP   = 2,
+        OUTPUT_FORMAT_LIST_END // must be last - used to validate format type
+    };
+
+    // Construct the muxer with the file descriptor. Note that the MediaMuxer
+    // will close this file at stop().
+    MediaMuxer(int fd, OutputFormat format);
+
+    virtual ~MediaMuxer();
+
+    /**
+     * Add a track with its format information. This should be
+     * called before start().
+     * @param format the track's format.
+     * @return the track's index or negative number if error.
+     */
+    ssize_t addTrack(const sp<AMessage> &format);
+
+    /**
+     * Start muxing. Make sure all the tracks have been added before
+     * calling this.
+     */
+    status_t start();
+
+    /**
+     * Set the orientation hint.
+     * @param degrees The rotation degrees. It has to be either 0,
+     *                90, 180 or 270.
+     * @return OK if no error.
+     */
+    status_t setOrientationHint(int degrees);
+
+    /**
+     * Set the location.
+     * @param latitude The latitude in degree x 1000. Its value must be in the range
+     * [-900000, 900000].
+     * @param longitude The longitude in degree x 1000. Its value must be in the range
+     * [-1800000, 1800000].
+     * @return OK if no error.
+     */
+    status_t setLocation(int latitude, int longitude);
+
+    /**
+     * Stop muxing.
+     * This method is a blocking call. Depending on how
+     * much data is bufferred internally, the time needed for stopping
+     * the muxer may be time consuming. UI thread is
+     * not recommended for launching this call.
+     * @return OK if no error.
+     */
+    status_t stop();
+
+    /**
+     * Send a sample buffer for muxing.
+     * The buffer can be reused once this method returns. Typically,
+     * this function won't be blocked for very long, and thus there
+     * is no need to use a separate thread calling this method to
+     * push a buffer.
+     * @param buffer the incoming sample buffer.
+     * @param trackIndex the buffer's track index number.
+     * @param timeUs the buffer's time stamp.
+     * @param flags the only supported flag for now is
+     *              MediaCodec::BUFFER_FLAG_SYNCFRAME.
+     * @return OK if no error.
+     */
+    status_t writeSampleData(const sp<ABuffer> &buffer, size_t trackIndex,
+                             int64_t timeUs, uint32_t flags) ;
+
+private:
+    const OutputFormat mFormat;
+    sp<MediaWriter> mWriter;
+    Vector< sp<MediaAdapter> > mTrackList;  // Each track has its MediaAdapter.
+    sp<MetaData> mFileMeta;  // Metadata for the whole file.
+
+    Mutex mMuxerLock;
+
+    enum State {
+        UNINITIALIZED,
+        INITIALIZED,
+        STARTED,
+        STOPPED
+    };
+    State mState;
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaMuxer);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_MUXER_H_
+
diff --git a/include/media/stagefright/MediaSource.h b/media/libstagefright/include/MediaSource.h
similarity index 100%
rename from include/media/stagefright/MediaSource.h
rename to media/libstagefright/include/MediaSource.h
diff --git a/include/media/stagefright/MediaSync.h b/media/libstagefright/include/MediaSync.h
similarity index 100%
rename from include/media/stagefright/MediaSync.h
rename to media/libstagefright/include/MediaSync.h
diff --git a/media/libstagefright/include/MediaWriter.h b/media/libstagefright/include/MediaWriter.h
new file mode 100644
index 0000000..9c30ffa
--- /dev/null
+++ b/media/libstagefright/include/MediaWriter.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_WRITER_H_
+
+#define MEDIA_WRITER_H_
+
+#include <utils/RefBase.h>
+#include <media/IMediaRecorderClient.h>
+#include <media/IMediaSource.h>
+
+namespace android {
+
+class MetaData;
+
+struct MediaWriter : public RefBase {
+    MediaWriter()
+        : mMaxFileSizeLimitBytes(0),
+          mMaxFileDurationLimitUs(0) {
+    }
+
+    virtual status_t addSource(const sp<IMediaSource> &source) = 0;
+    virtual bool reachedEOS() = 0;
+    virtual status_t start(MetaData *params = NULL) = 0;
+    virtual status_t stop() = 0;
+    virtual status_t pause() = 0;
+
+    virtual void setMaxFileSize(int64_t bytes) { mMaxFileSizeLimitBytes = bytes; }
+    virtual void setMaxFileDuration(int64_t durationUs) { mMaxFileDurationLimitUs = durationUs; }
+    virtual void setListener(const sp<IMediaRecorderClient>& listener) {
+        mListener = listener;
+    }
+
+    virtual status_t dump(int /*fd*/, const Vector<String16>& /*args*/) {
+        return OK;
+    }
+
+    virtual void setStartTimeOffsetMs(int /*ms*/) {}
+    virtual int32_t getStartTimeOffsetMs() const { return 0; }
+    virtual status_t setNextFd(int fd) { return INVALID_OPERATION; }
+
+protected:
+    virtual ~MediaWriter() {}
+    int64_t mMaxFileSizeLimitBytes;
+    int64_t mMaxFileDurationLimitUs;
+    sp<IMediaRecorderClient> mListener;
+
+    void notify(int msg, int ext1, int ext2) {
+        if (mListener != NULL) {
+            mListener->notify(msg, ext1, ext2);
+        }
+    }
+private:
+    MediaWriter(const MediaWriter &);
+    MediaWriter &operator=(const MediaWriter &);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_WRITER_H_
diff --git a/media/libstagefright/include/MetaData.h b/media/libstagefright/include/MetaData.h
new file mode 100644
index 0000000..7afd22d
--- /dev/null
+++ b/media/libstagefright/include/MetaData.h
@@ -0,0 +1,327 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef META_DATA_H_
+
+#define META_DATA_H_
+
+#include <sys/types.h>
+
+#include <stdint.h>
+
+#include <binder/Parcel.h>
+#include <utils/RefBase.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+
+namespace android {
+
+// The following keys map to int32_t data unless indicated otherwise.
+enum {
+    kKeyMIMEType          = 'mime',  // cstring
+    kKeyWidth             = 'widt',  // int32_t, image pixel
+    kKeyHeight            = 'heig',  // int32_t, image pixel
+    kKeyDisplayWidth      = 'dWid',  // int32_t, display/presentation
+    kKeyDisplayHeight     = 'dHgt',  // int32_t, display/presentation
+    kKeySARWidth          = 'sarW',  // int32_t, sampleAspectRatio width
+    kKeySARHeight         = 'sarH',  // int32_t, sampleAspectRatio height
+
+    // a rectangle, if absent assumed to be (0, 0, width - 1, height - 1)
+    kKeyCropRect          = 'crop',
+
+    kKeyRotation          = 'rotA',  // int32_t (angle in degrees)
+    kKeyIFramesInterval   = 'ifiv',  // int32_t
+    kKeyStride            = 'strd',  // int32_t
+    kKeySliceHeight       = 'slht',  // int32_t
+    kKeyChannelCount      = '#chn',  // int32_t
+    kKeyChannelMask       = 'chnm',  // int32_t
+    kKeySampleRate        = 'srte',  // int32_t (audio sampling rate Hz)
+    kKeyPcmEncoding       = 'PCMe',  // int32_t (audio encoding enum)
+    kKeyFrameRate         = 'frmR',  // int32_t (video frame rate fps)
+    kKeyBitRate           = 'brte',  // int32_t (bps)
+    kKeyMaxBitRate        = 'mxBr',  // int32_t (bps)
+    kKeyStreamHeader      = 'stHd',  // raw data
+    kKeyESDS              = 'esds',  // raw data
+    kKeyAACProfile        = 'aacp',  // int32_t
+    kKeyAVCC              = 'avcc',  // raw data
+    kKeyHVCC              = 'hvcc',  // raw data
+    kKeyD263              = 'd263',  // raw data
+    kKeyVorbisInfo        = 'vinf',  // raw data
+    kKeyVorbisBooks       = 'vboo',  // raw data
+    kKeyOpusHeader        = 'ohdr',  // raw data
+    kKeyOpusCodecDelay    = 'ocod',  // uint64_t (codec delay in ns)
+    kKeyOpusSeekPreRoll   = 'ospr',  // uint64_t (seek preroll in ns)
+    kKeyVp9CodecPrivate   = 'vp9p',  // raw data (vp9 csd information)
+    kKeyWantsNALFragments = 'NALf',
+    kKeyIsSyncFrame       = 'sync',  // int32_t (bool)
+    kKeyIsCodecConfig     = 'conf',  // int32_t (bool)
+    kKeyTime              = 'time',  // int64_t (usecs)
+    kKeyDecodingTime      = 'decT',  // int64_t (decoding timestamp in usecs)
+    kKeyNTPTime           = 'ntpT',  // uint64_t (ntp-timestamp)
+    kKeyTargetTime        = 'tarT',  // int64_t (usecs)
+    kKeyDriftTime         = 'dftT',  // int64_t (usecs)
+    kKeyAnchorTime        = 'ancT',  // int64_t (usecs)
+    kKeyDuration          = 'dura',  // int64_t (usecs)
+    kKeyPixelFormat       = 'pixf',  // int32_t
+    kKeyColorFormat       = 'colf',  // int32_t
+    kKeyColorSpace        = 'cols',  // int32_t
+    kKeyPlatformPrivate   = 'priv',  // pointer
+    kKeyDecoderComponent  = 'decC',  // cstring
+    kKeyBufferID          = 'bfID',
+    kKeyMaxInputSize      = 'inpS',
+    kKeyMaxWidth          = 'maxW',
+    kKeyMaxHeight         = 'maxH',
+    kKeyThumbnailTime     = 'thbT',  // int64_t (usecs)
+    kKeyTrackID           = 'trID',
+    kKeyIsDRM             = 'idrm',  // int32_t (bool)
+    kKeyEncoderDelay      = 'encd',  // int32_t (frames)
+    kKeyEncoderPadding    = 'encp',  // int32_t (frames)
+
+    kKeyAlbum             = 'albu',  // cstring
+    kKeyArtist            = 'arti',  // cstring
+    kKeyAlbumArtist       = 'aart',  // cstring
+    kKeyComposer          = 'comp',  // cstring
+    kKeyGenre             = 'genr',  // cstring
+    kKeyTitle             = 'titl',  // cstring
+    kKeyYear              = 'year',  // cstring
+    kKeyAlbumArt          = 'albA',  // compressed image data
+    kKeyAlbumArtMIME      = 'alAM',  // cstring
+    kKeyAuthor            = 'auth',  // cstring
+    kKeyCDTrackNumber     = 'cdtr',  // cstring
+    kKeyDiscNumber        = 'dnum',  // cstring
+    kKeyDate              = 'date',  // cstring
+    kKeyWriter            = 'writ',  // cstring
+    kKeyCompilation       = 'cpil',  // cstring
+    kKeyLocation          = 'loc ',  // cstring
+    kKeyTimeScale         = 'tmsl',  // int32_t
+    kKeyCaptureFramerate  = 'capF',  // float (capture fps)
+
+    // video profile and level
+    kKeyVideoProfile      = 'vprf',  // int32_t
+    kKeyVideoLevel        = 'vlev',  // int32_t
+
+    // Set this key to enable authoring files in 64-bit offset
+    kKey64BitFileOffset   = 'fobt',  // int32_t (bool)
+    kKey2ByteNalLength    = '2NAL',  // int32_t (bool)
+
+    // Identify the file output format for authoring
+    // Please see <media/mediarecorder.h> for the supported
+    // file output formats.
+    kKeyFileType          = 'ftyp',  // int32_t
+
+    // Track authoring progress status
+    // kKeyTrackTimeStatus is used to track progress in elapsed time
+    kKeyTrackTimeStatus   = 'tktm',  // int64_t
+
+    kKeyRealTimeRecording = 'rtrc',  // bool (int32_t)
+    kKeyNumBuffers        = 'nbbf',  // int32_t
+
+    // Ogg files can be tagged to be automatically looping...
+    kKeyAutoLoop          = 'autL',  // bool (int32_t)
+
+    kKeyValidSamples      = 'valD',  // int32_t
+
+    kKeyIsUnreadable      = 'unre',  // bool (int32_t)
+
+    // An indication that a video buffer has been rendered.
+    kKeyRendered          = 'rend',  // bool (int32_t)
+
+    // The language code for this media
+    kKeyMediaLanguage     = 'lang',  // cstring
+
+    // To store the timed text format data
+    kKeyTextFormatData    = 'text',  // raw data
+
+    kKeyRequiresSecureBuffers = 'secu',  // bool (int32_t)
+
+    kKeyIsADTS            = 'adts',  // bool (int32_t)
+    kKeyAACAOT            = 'aaot',  // int32_t
+
+    // If a MediaBuffer's data represents (at least partially) encrypted
+    // data, the following fields aid in decryption.
+    // The data can be thought of as pairs of plain and encrypted data
+    // fragments, i.e. plain and encrypted data alternate.
+    // The first fragment is by convention plain data (if that's not the
+    // case, simply specify plain fragment size of 0).
+    // kKeyEncryptedSizes and kKeyPlainSizes each map to an array of
+    // size_t values. The sum total of all size_t values of both arrays
+    // must equal the amount of data (i.e. MediaBuffer's range_length()).
+    // If both arrays are present, they must be of the same size.
+    // If only encrypted sizes are present it is assumed that all
+    // plain sizes are 0, i.e. all fragments are encrypted.
+    // To programmatically set these array, use the MetaData::setData API, i.e.
+    // const size_t encSizes[];
+    // meta->setData(
+    //  kKeyEncryptedSizes, 0 /* type */, encSizes, sizeof(encSizes));
+    // A plain sizes array by itself makes no sense.
+    kKeyEncryptedSizes    = 'encr',  // size_t[]
+    kKeyPlainSizes        = 'plai',  // size_t[]
+    kKeyCryptoKey         = 'cryK',  // uint8_t[16]
+    kKeyCryptoIV          = 'cryI',  // uint8_t[16]
+    kKeyCryptoMode        = 'cryM',  // int32_t
+
+    kKeyCryptoDefaultIVSize = 'cryS',  // int32_t
+
+    kKeyPssh              = 'pssh',  // raw data
+    kKeyCASystemID        = 'caid',  // int32_t
+    kKeyCASessionID       = 'seid',  // raw data
+
+    // Please see MediaFormat.KEY_IS_AUTOSELECT.
+    kKeyTrackIsAutoselect = 'auto', // bool (int32_t)
+    // Please see MediaFormat.KEY_IS_DEFAULT.
+    kKeyTrackIsDefault    = 'dflt', // bool (int32_t)
+    // Similar to MediaFormat.KEY_IS_FORCED_SUBTITLE but pertains to av tracks as well.
+    kKeyTrackIsForced     = 'frcd', // bool (int32_t)
+
+    // H264 supplemental enhancement information offsets/sizes
+    kKeySEI               = 'sei ', // raw data
+
+    // MPEG user data offsets
+    kKeyMpegUserData      = 'mpud', // size_t[]
+
+    // Size of NALU length in mkv/mp4
+    kKeyNalLengthSize     = 'nals', // int32_t
+
+    // HDR related
+    kKeyHdrStaticInfo    = 'hdrS', // HDRStaticInfo
+
+    // color aspects
+    kKeyColorRange       = 'cRng', // int32_t, color range, value defined by ColorAspects.Range
+    kKeyColorPrimaries   = 'cPrm', // int32_t,
+                                   // color Primaries, value defined by ColorAspects.Primaries
+    kKeyTransferFunction = 'tFun', // int32_t,
+                                   // transfer Function, value defined by ColorAspects.Transfer.
+    kKeyColorMatrix      = 'cMtx', // int32_t,
+                                   // color Matrix, value defined by ColorAspects.MatrixCoeffs.
+    kKeyTemporalLayerId  = 'iLyr', // int32_t, temporal layer-id. 0-based (0 => base layer)
+    kKeyTemporalLayerCount = 'cLyr', // int32_t, number of temporal layers encoded
+};
+
+enum {
+    kTypeESDS        = 'esds',
+    kTypeAVCC        = 'avcc',
+    kTypeHVCC        = 'hvcc',
+    kTypeD263        = 'd263',
+};
+
+class MetaData : public RefBase {
+public:
+    MetaData();
+    MetaData(const MetaData &from);
+
+    enum Type {
+        TYPE_NONE     = 'none',
+        TYPE_C_STRING = 'cstr',
+        TYPE_INT32    = 'in32',
+        TYPE_INT64    = 'in64',
+        TYPE_FLOAT    = 'floa',
+        TYPE_POINTER  = 'ptr ',
+        TYPE_RECT     = 'rect',
+    };
+
+    void clear();
+    bool remove(uint32_t key);
+
+    bool setCString(uint32_t key, const char *value);
+    bool setInt32(uint32_t key, int32_t value);
+    bool setInt64(uint32_t key, int64_t value);
+    bool setFloat(uint32_t key, float value);
+    bool setPointer(uint32_t key, void *value);
+
+    bool setRect(
+            uint32_t key,
+            int32_t left, int32_t top,
+            int32_t right, int32_t bottom);
+
+    bool findCString(uint32_t key, const char **value);
+    bool findInt32(uint32_t key, int32_t *value);
+    bool findInt64(uint32_t key, int64_t *value);
+    bool findFloat(uint32_t key, float *value);
+    bool findPointer(uint32_t key, void **value);
+
+    bool findRect(
+            uint32_t key,
+            int32_t *left, int32_t *top,
+            int32_t *right, int32_t *bottom);
+
+    bool setData(uint32_t key, uint32_t type, const void *data, size_t size);
+
+    bool findData(uint32_t key, uint32_t *type,
+                  const void **data, size_t *size) const;
+
+    bool hasData(uint32_t key) const;
+
+    String8 toString() const;
+    void dumpToLog() const;
+
+    status_t writeToParcel(Parcel &parcel);
+    status_t updateFromParcel(const Parcel &parcel);
+    static sp<MetaData> createFromParcel(const Parcel &parcel);
+
+protected:
+    virtual ~MetaData();
+
+private:
+    struct typed_data {
+        typed_data();
+        ~typed_data();
+
+        typed_data(const MetaData::typed_data &);
+        typed_data &operator=(const MetaData::typed_data &);
+
+        void clear();
+        void setData(uint32_t type, const void *data, size_t size);
+        void getData(uint32_t *type, const void **data, size_t *size) const;
+        // may include hexdump of binary data if verbose=true
+        String8 asString(bool verbose) const;
+
+    private:
+        uint32_t mType;
+        size_t mSize;
+
+        union {
+            void *ext_data;
+            float reservoir;
+        } u;
+
+        bool usesReservoir() const {
+            return mSize <= sizeof(u.reservoir);
+        }
+
+        void *allocateStorage(size_t size);
+        void freeStorage();
+
+        void *storage() {
+            return usesReservoir() ? &u.reservoir : u.ext_data;
+        }
+
+        const void *storage() const {
+            return usesReservoir() ? &u.reservoir : u.ext_data;
+        }
+    };
+
+    struct Rect {
+        int32_t mLeft, mTop, mRight, mBottom;
+    };
+
+    KeyedVector<uint32_t, typed_data> mItems;
+
+    // MetaData &operator=(const MetaData &);
+};
+
+}  // namespace android
+
+#endif  // META_DATA_H_
diff --git a/media/libstagefright/include/MidiExtractor.h b/media/libstagefright/include/MidiExtractor.h
index 5a7d90e..94d2d08 100644
--- a/media/libstagefright/include/MidiExtractor.h
+++ b/media/libstagefright/include/MidiExtractor.h
@@ -53,7 +53,7 @@
 
 public:
     // Extractor assumes ownership of source
-    MidiExtractor(const sp<DataSource> &source);
+    explicit MidiExtractor(const sp<DataSource> &source);
 
     virtual size_t countTracks();
     virtual sp<IMediaSource> getTrack(size_t index);
diff --git a/media/libstagefright/include/NuMediaExtractor.h b/media/libstagefright/include/NuMediaExtractor.h
new file mode 100644
index 0000000..3e3cc17
--- /dev/null
+++ b/media/libstagefright/include/NuMediaExtractor.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef NU_MEDIA_EXTRACTOR_H_
+#define NU_MEDIA_EXTRACTOR_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/IMediaExtractor.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+#include <utils/threads.h>
+#include <utils/Vector.h>
+
+namespace android {
+namespace media {
+class ICas;
+}
+using namespace media;
+
+struct ABuffer;
+struct AMessage;
+class DataSource;
+struct IMediaHTTPService;
+class MediaBuffer;
+class MediaExtractor;
+struct MediaSource;
+class MetaData;
+
+struct NuMediaExtractor : public RefBase {
+    enum SampleFlags {
+        SAMPLE_FLAG_SYNC        = 1,
+        SAMPLE_FLAG_ENCRYPTED   = 2,
+    };
+
+    // identical to IMediaExtractor::GetTrackMetaDataFlags
+    enum GetTrackFormatFlags {
+        kIncludeExtensiveMetaData = 1, // reads sample table and possibly stream headers
+    };
+
+    NuMediaExtractor();
+
+    status_t setDataSource(
+            const sp<IMediaHTTPService> &httpService,
+            const char *path,
+            const KeyedVector<String8, String8> *headers = NULL);
+
+    status_t setDataSource(int fd, off64_t offset, off64_t size);
+
+    status_t setDataSource(const sp<DataSource> &datasource);
+
+    status_t setMediaCas(const sp<ICas> &cas);
+
+    size_t countTracks() const;
+    status_t getTrackFormat(size_t index, sp<AMessage> *format, uint32_t flags = 0) const;
+
+    status_t getFileFormat(sp<AMessage> *format) const;
+
+    status_t selectTrack(size_t index);
+    status_t unselectTrack(size_t index);
+
+    status_t seekTo(
+            int64_t timeUs,
+            MediaSource::ReadOptions::SeekMode mode =
+                MediaSource::ReadOptions::SEEK_CLOSEST_SYNC);
+
+    status_t advance();
+    status_t readSampleData(const sp<ABuffer> &buffer);
+    status_t getSampleTrackIndex(size_t *trackIndex);
+    status_t getSampleTime(int64_t *sampleTimeUs);
+    status_t getSampleMeta(sp<MetaData> *sampleMeta);
+    status_t getMetrics(Parcel *reply);
+
+    bool getCachedDuration(int64_t *durationUs, bool *eos) const;
+
+protected:
+    virtual ~NuMediaExtractor();
+
+private:
+    enum TrackFlags {
+        kIsVorbis       = 1,
+    };
+
+    enum {
+        kMaxTrackCount = 16384,
+    };
+
+    struct TrackInfo {
+        sp<IMediaSource> mSource;
+        size_t mTrackIndex;
+        status_t mFinalResult;
+        MediaBuffer *mSample;
+        int64_t mSampleTimeUs;
+
+        uint32_t mTrackFlags;  // bitmask of "TrackFlags"
+    };
+
+    mutable Mutex mLock;
+
+    sp<DataSource> mDataSource;
+
+    sp<IMediaExtractor> mImpl;
+    sp<ICas> mCas;
+
+    Vector<TrackInfo> mSelectedTracks;
+    int64_t mTotalBitrate;  // in bits/sec
+    int64_t mDurationUs;
+
+    ssize_t fetchTrackSamples(
+            int64_t seekTimeUs = -1ll,
+            MediaSource::ReadOptions::SeekMode mode =
+                MediaSource::ReadOptions::SEEK_CLOSEST_SYNC);
+
+    void releaseTrackSamples();
+
+    bool getTotalBitrate(int64_t *bitRate) const;
+    status_t updateDurationAndBitrate();
+    status_t appendVorbisNumPageSamples(TrackInfo *info, const sp<ABuffer> &buffer);
+
+    DISALLOW_EVIL_CONSTRUCTORS(NuMediaExtractor);
+};
+
+}  // namespace android
+
+#endif  // NU_MEDIA_EXTRACTOR_H_
+
diff --git a/media/libstagefright/include/OMX.h b/media/libstagefright/include/OMX.h
index 6c073f0..4af3d39 100644
--- a/media/libstagefright/include/OMX.h
+++ b/media/libstagefright/include/OMX.h
@@ -20,6 +20,8 @@
 #include <media/IOMX.h>
 #include <utils/threads.h>
 #include <utils/KeyedVector.h>
+#include <media/vndk/xmlparser/1.0/MediaCodecsXmlParser.h>
+#include "OmxNodeOwner.h"
 
 namespace android {
 
@@ -27,162 +29,34 @@
 struct OMXNodeInstance;
 
 class OMX : public BnOMX,
+            public OmxNodeOwner,
             public IBinder::DeathRecipient {
 public:
     OMX();
 
-    virtual bool livesLocally(node_id node, pid_t pid);
-
     virtual status_t listNodes(List<ComponentInfo> *list);
 
     virtual status_t allocateNode(
             const char *name, const sp<IOMXObserver> &observer,
-            sp<IBinder> *nodeBinder,
-            node_id *node);
-
-    virtual status_t freeNode(node_id node);
-
-    virtual status_t sendCommand(
-            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param);
-
-    virtual status_t getParameter(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size);
-
-    virtual status_t setParameter(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size);
-
-    virtual status_t getConfig(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size);
-
-    virtual status_t setConfig(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size);
-
-    virtual status_t getState(
-            node_id node, OMX_STATETYPE* state);
-
-    virtual status_t enableNativeBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable);
-
-    virtual status_t getGraphicBufferUsage(
-            node_id node, OMX_U32 port_index, OMX_U32* usage);
-
-    virtual status_t storeMetaDataInBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type);
-
-    virtual status_t prepareForAdaptivePlayback(
-            node_id node, OMX_U32 portIndex, OMX_BOOL enable,
-            OMX_U32 max_frame_width, OMX_U32 max_frame_height);
-
-    virtual status_t configureVideoTunnelMode(
-            node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
-            OMX_U32 audioHwSync, native_handle_t **sidebandHandle);
-
-    virtual status_t useBuffer(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize);
-
-    virtual status_t useGraphicBuffer(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer);
-
-    virtual status_t updateGraphicBufferInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer);
-
-    virtual status_t updateNativeHandleInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<NativeHandle> &nativeHandle, buffer_id buffer);
+            sp<IOMXNode> *omxNode);
 
     virtual status_t createInputSurface(
-            node_id node, OMX_U32 port_index, android_dataspace dataSpace,
             sp<IGraphicBufferProducer> *bufferProducer,
-            MetadataBufferType *type);
-
-    virtual status_t createPersistentInputSurface(
-            sp<IGraphicBufferProducer> *bufferProducer,
-            sp<IGraphicBufferConsumer> *bufferConsumer);
-
-    virtual status_t setInputSurface(
-            node_id node, OMX_U32 port_index,
-            const sp<IGraphicBufferConsumer> &bufferConsumer,
-            MetadataBufferType *type);
-
-    virtual status_t signalEndOfInputStream(node_id node);
-
-    virtual status_t allocateSecureBuffer(
-            node_id node, OMX_U32 port_index, size_t size,
-            buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle);
-
-    virtual status_t allocateBufferWithBackup(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize);
-
-    virtual status_t freeBuffer(
-            node_id node, OMX_U32 port_index, buffer_id buffer);
-
-    virtual status_t fillBuffer(node_id node, buffer_id buffer, int fenceFd);
-
-    virtual status_t emptyBuffer(
-            node_id node,
-            buffer_id buffer,
-            OMX_U32 range_offset, OMX_U32 range_length,
-            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
-
-    virtual status_t getExtensionIndex(
-            node_id node,
-            const char *parameter_name,
-            OMX_INDEXTYPE *index);
-
-    virtual status_t setInternalOption(
-            node_id node,
-            OMX_U32 port_index,
-            InternalOptionType type,
-            const void *data,
-            size_t size);
+            sp<IGraphicBufferSource> *bufferSource);
 
     virtual void binderDied(const wp<IBinder> &the_late_who);
 
-    virtual bool isSecure(IOMX::node_id node);
-
-    OMX_ERRORTYPE OnEvent(
-            node_id node,
-            OMX_IN OMX_EVENTTYPE eEvent,
-            OMX_IN OMX_U32 nData1,
-            OMX_IN OMX_U32 nData2,
-            OMX_IN OMX_PTR pEventData);
-
-    OMX_ERRORTYPE OnEmptyBufferDone(
-            node_id node, buffer_id buffer, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer, int fenceFd);
-
-    OMX_ERRORTYPE OnFillBufferDone(
-            node_id node, buffer_id buffer, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer, int fenceFd);
-
-    void invalidateNodeID(node_id node);
+    virtual status_t freeNode(const sp<OMXNodeInstance>& instance);
 
 protected:
     virtual ~OMX();
 
 private:
-    struct CallbackDispatcherThread;
-    struct CallbackDispatcher;
-
     Mutex mLock;
     OMXMaster *mMaster;
-    size_t mNodeCounter;
+    MediaCodecsXmlParser mParser;
 
-    KeyedVector<wp<IBinder>, OMXNodeInstance *> mLiveNodes;
-    KeyedVector<node_id, OMXNodeInstance *> mNodeIDToInstance;
-    KeyedVector<node_id, sp<CallbackDispatcher> > mDispatchers;
-
-    node_id makeNodeID_l(OMXNodeInstance *instance);
-    OMXNodeInstance *findInstance(node_id node);
-    sp<CallbackDispatcher> findDispatcher(node_id node);
-
-    void invalidateNodeID_l(node_id node);
+    KeyedVector<wp<IBinder>, sp<OMXNodeInstance> > mLiveNodes;
 
     OMX(const OMX &);
     OMX &operator=(const OMX &);
diff --git a/media/libstagefright/include/OMXClient.h b/media/libstagefright/include/OMXClient.h
new file mode 100644
index 0000000..203a181
--- /dev/null
+++ b/media/libstagefright/include/OMXClient.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OMX_CLIENT_H_
+
+#define OMX_CLIENT_H_
+
+namespace android {
+
+class IOMX;
+
+class OMXClient {
+public:
+    OMXClient();
+
+    status_t connect();
+    status_t connect(bool* trebleFlag);
+
+    status_t connectLegacy();
+    status_t connectTreble();
+    void disconnect();
+
+    sp<IOMX> interface() {
+        return mOMX;
+    }
+
+private:
+    sp<IOMX> mOMX;
+
+    OMXClient(const OMXClient &);
+    OMXClient &operator=(const OMXClient &);
+};
+
+}  // namespace android
+
+#endif  // OMX_CLIENT_H_
diff --git a/media/libstagefright/include/OMXNodeInstance.h b/media/libstagefright/include/OMXNodeInstance.h
index dd396e8..00c37e1 100644
--- a/media/libstagefright/include/OMXNodeInstance.h
+++ b/media/libstagefright/include/OMXNodeInstance.h
@@ -18,29 +18,35 @@
 
 #define OMX_NODE_INSTANCE_H_
 
-#include "OMX.h"
+#include <atomic>
 
+#include <media/IOMX.h>
 #include <utils/RefBase.h>
-#include <utils/SortedVector.h>
 #include <utils/threads.h>
+#include <utils/KeyedVector.h>
+#include <utils/SortedVector.h>
+#include "OmxNodeOwner.h"
+
+#include <android/hidl/memory/1.0/IMemory.h>
 
 namespace android {
-
+class GraphicBuffer;
+class IOMXBufferSource;
 class IOMXObserver;
 struct OMXMaster;
-class GraphicBufferSource;
+class OMXBuffer;
+typedef hidl::memory::V1_0::IMemory IHidlMemory;
 
-struct OMXNodeInstance {
+struct OMXNodeInstance : public BnOMXNode {
     OMXNodeInstance(
-            OMX *owner, const sp<IOMXObserver> &observer, const char *name);
+            OmxNodeOwner *owner, const sp<IOMXObserver> &observer, const char *name);
 
-    void setHandle(OMX::node_id node_id, OMX_HANDLETYPE handle);
+    void setHandle(OMX_HANDLETYPE handle);
 
-    OMX *owner();
+    OMX_HANDLETYPE handle();
     sp<IOMXObserver> observer();
-    OMX::node_id nodeID();
 
-    status_t freeNode(OMXMaster *master);
+    status_t freeNode() override;
 
     status_t sendCommand(OMX_COMMANDTYPE cmd, OMX_S32 param);
     status_t getParameter(OMX_INDEXTYPE index, void *params, size_t size);
@@ -51,15 +57,10 @@
     status_t getConfig(OMX_INDEXTYPE index, void *params, size_t size);
     status_t setConfig(OMX_INDEXTYPE index, const void *params, size_t size);
 
-    status_t getState(OMX_STATETYPE* state);
-
-    status_t enableNativeBuffers(OMX_U32 portIndex, OMX_BOOL graphic, OMX_BOOL enable);
+    status_t setPortMode(OMX_U32 port_index, IOMX::PortMode mode);
 
     status_t getGraphicBufferUsage(OMX_U32 portIndex, OMX_U32* usage);
 
-    status_t storeMetaDataInBuffers(
-            OMX_U32 portIndex, OMX_BOOL enable, MetadataBufferType *type);
-
     status_t prepareForAdaptivePlayback(
             OMX_U32 portIndex, OMX_BOOL enable,
             OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight);
@@ -68,113 +69,80 @@
             OMX_U32 portIndex, OMX_BOOL tunneled,
             OMX_U32 audioHwSync, native_handle_t **sidebandHandle);
 
-    status_t useBuffer(
-            OMX_U32 portIndex, const sp<IMemory> &params,
-            OMX::buffer_id *buffer, OMX_U32 allottedSize);
-
-    status_t useGraphicBuffer(
-            OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
-            OMX::buffer_id *buffer);
-
-    status_t updateGraphicBufferInMeta(
-            OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
-            OMX::buffer_id buffer);
-
-    status_t updateNativeHandleInMeta(
-            OMX_U32 portIndex, const sp<NativeHandle> &nativeHandle,
-            OMX::buffer_id buffer);
-
-    status_t createInputSurface(
-            OMX_U32 portIndex, android_dataspace dataSpace,
-            sp<IGraphicBufferProducer> *bufferProducer,
-            MetadataBufferType *type);
-
-    static status_t createPersistentInputSurface(
-            sp<IGraphicBufferProducer> *bufferProducer,
-            sp<IGraphicBufferConsumer> *bufferConsumer);
-
     status_t setInputSurface(
-            OMX_U32 portIndex, const sp<IGraphicBufferConsumer> &bufferConsumer,
-            MetadataBufferType *type);
-
-    status_t signalEndOfInputStream();
-
-    void signalEvent(OMX_EVENTTYPE event, OMX_U32 arg1, OMX_U32 arg2);
+            const sp<IOMXBufferSource> &bufferSource);
 
     status_t allocateSecureBuffer(
-            OMX_U32 portIndex, size_t size, OMX::buffer_id *buffer,
+            OMX_U32 portIndex, size_t size, IOMX::buffer_id *buffer,
             void **buffer_data, sp<NativeHandle> *native_handle);
 
-    status_t allocateBufferWithBackup(
-            OMX_U32 portIndex, const sp<IMemory> &params,
-            OMX::buffer_id *buffer, OMX_U32 allottedSize);
+    status_t useBuffer(
+            OMX_U32 portIndex, const OMXBuffer &omxBuf, buffer_id *buffer);
 
-    status_t freeBuffer(OMX_U32 portIndex, OMX::buffer_id buffer);
+    status_t freeBuffer(
+            OMX_U32 portIndex, buffer_id buffer);
 
-    status_t fillBuffer(OMX::buffer_id buffer, int fenceFd);
+    status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf, int fenceFd = -1);
 
     status_t emptyBuffer(
-            OMX::buffer_id buffer,
-            OMX_U32 rangeOffset, OMX_U32 rangeLength,
-            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
-
-    status_t emptyGraphicBuffer(
-            OMX_BUFFERHEADERTYPE *header, const sp<GraphicBuffer> &buffer,
-            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1);
 
     status_t getExtensionIndex(
             const char *parameterName, OMX_INDEXTYPE *index);
 
-    status_t setInternalOption(
-            OMX_U32 portIndex,
-            IOMX::InternalOptionType type,
-            const void *data,
-            size_t size);
+    status_t setQuirks(OMX_U32 quirks);
 
     bool isSecure() const {
         return mIsSecure;
     }
 
+    status_t dispatchMessage(const omx_message &msg) override;
+
     // handles messages and removes them from the list
     void onMessages(std::list<omx_message> &messages);
-    void onMessage(const omx_message &msg);
-    void onObserverDied(OMXMaster *master);
-    void onGetHandleFailed();
+    void onObserverDied();
     void onEvent(OMX_EVENTTYPE event, OMX_U32 arg1, OMX_U32 arg2);
 
     static OMX_CALLBACKTYPE kCallbacks;
 
 private:
+    struct CallbackDispatcherThread;
+    struct CallbackDispatcher;
+
     Mutex mLock;
 
-    OMX *mOwner;
-    OMX::node_id mNodeID;
+    OmxNodeOwner *mOwner;
     OMX_HANDLETYPE mHandle;
     sp<IOMXObserver> mObserver;
-    bool mDying;
+    sp<CallbackDispatcher> mDispatcher;
+    std::atomic_bool mDying;
     bool mSailed;  // configuration is set (no more meta-mode changes)
     bool mQueriedProhibitedExtensions;
     SortedVector<OMX_INDEXTYPE> mProhibitedExtensions;
     bool mIsSecure;
+    uint32_t mQuirks;
 
-    // Lock only covers mGraphicBufferSource.  We can't always use mLock
-    // because of rare instances where we'd end up locking it recursively.
-    Mutex mGraphicBufferSourceLock;
-    // Access this through getGraphicBufferSource().
-    sp<GraphicBufferSource> mGraphicBufferSource;
-
+    // Lock only covers mOMXBufferSource and mOMXOutputListener.  We can't always
+    // use mLock because of rare instances where we'd end up locking it recursively.
+    Mutex mOMXBufferSourceLock;
+    // Access these through getBufferSource().
+    sp<IOMXBufferSource> mOMXBufferSource;
 
     struct ActiveBuffer {
         OMX_U32 mPortIndex;
-        OMX::buffer_id mID;
+        IOMX::buffer_id mID;
     };
     Vector<ActiveBuffer> mActiveBuffers;
     // for buffer ptr to buffer id translation
     Mutex mBufferIDLock;
     uint32_t mBufferIDCount;
-    KeyedVector<OMX::buffer_id, OMX_BUFFERHEADERTYPE *> mBufferIDToBufferHeader;
-    KeyedVector<OMX_BUFFERHEADERTYPE *, OMX::buffer_id> mBufferHeaderToBufferID;
+    KeyedVector<IOMX::buffer_id, OMX_BUFFERHEADERTYPE *> mBufferIDToBufferHeader;
+    KeyedVector<OMX_BUFFERHEADERTYPE *, IOMX::buffer_id> mBufferHeaderToBufferID;
 
+    bool mLegacyAdaptiveExperiment;
+    IOMX::PortMode mPortMode[2];
     // metadata and secure buffer types and graphic buffer mode tracking
     MetadataBufferType mMetadataType[2];
     enum SecureBufferType {
@@ -185,6 +153,14 @@
     SecureBufferType mSecureBufferType[2];
     bool mGraphicBufferEnabled[2];
 
+    // Following are OMX parameters managed by us (instead of the component)
+    // OMX_IndexParamMaxFrameDurationForBitrateControl
+    KeyedVector<int64_t, int64_t> mOriginalTimeUs;
+    bool mRestorePtsFailed;
+    int64_t mMaxTimestampGapUs;
+    int64_t mPrevOriginalTimeUs;
+    int64_t mPrevModifiedTimeUs;
+
     // For debug support
     char *mName;
     int DEBUG;
@@ -199,21 +175,51 @@
 
     ~OMXNodeInstance();
 
-    void addActiveBuffer(OMX_U32 portIndex, OMX::buffer_id id);
-    void removeActiveBuffer(OMX_U32 portIndex, OMX::buffer_id id);
+    void addActiveBuffer(OMX_U32 portIndex, IOMX::buffer_id id);
+    void removeActiveBuffer(OMX_U32 portIndex, IOMX::buffer_id id);
     void freeActiveBuffers();
 
     // For buffer id management
-    OMX::buffer_id makeBufferID(OMX_BUFFERHEADERTYPE *bufferHeader);
-    OMX_BUFFERHEADERTYPE *findBufferHeader(OMX::buffer_id buffer, OMX_U32 portIndex);
-    OMX::buffer_id findBufferID(OMX_BUFFERHEADERTYPE *bufferHeader);
-    void invalidateBufferID(OMX::buffer_id buffer);
+    IOMX::buffer_id makeBufferID(OMX_BUFFERHEADERTYPE *bufferHeader);
+    OMX_BUFFERHEADERTYPE *findBufferHeader(IOMX::buffer_id buffer, OMX_U32 portIndex);
+    IOMX::buffer_id findBufferID(OMX_BUFFERHEADERTYPE *bufferHeader);
+    void invalidateBufferID(IOMX::buffer_id buffer);
 
     bool isProhibitedIndex_l(OMX_INDEXTYPE index);
 
+    status_t useBuffer_l(
+            OMX_U32 portIndex, const sp<IMemory> &params,
+            const sp<IHidlMemory> &hParams, IOMX::buffer_id *buffer);
+
+    status_t useGraphicBuffer_l(
+            OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
+            IOMX::buffer_id *buffer);
+
+    status_t useGraphicBufferWithMetadata_l(
+            OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
+            IOMX::buffer_id *buffer);
+
     status_t useGraphicBuffer2_l(
             OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
-            OMX::buffer_id *buffer);
+            IOMX::buffer_id *buffer);
+
+    status_t emptyBuffer_l(
+            IOMX::buffer_id buffer,
+            OMX_U32 rangeOffset, OMX_U32 rangeLength,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
+
+    status_t emptyGraphicBuffer_l(
+            IOMX::buffer_id buffer, const sp<GraphicBuffer> &graphicBuffer,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
+
+    status_t emptyNativeHandleBuffer_l(
+            IOMX::buffer_id buffer, const sp<NativeHandle> &nativeHandle,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
+
+    status_t emptyBuffer_l(
+            OMX_BUFFERHEADERTYPE *header,
+            OMX_U32 flags, OMX_TICKS timestamp, intptr_t debugAddr, int fenceFd);
+
     static OMX_ERRORTYPE OnEvent(
             OMX_IN OMX_HANDLETYPE hComponent,
             OMX_IN OMX_PTR pAppData,
@@ -232,6 +238,9 @@
             OMX_IN OMX_PTR pAppData,
             OMX_IN OMX_BUFFERHEADERTYPE *pBuffer);
 
+    status_t enableNativeBuffers_l(
+            OMX_U32 portIndex, OMX_BOOL graphic, OMX_BOOL enable);
+
     status_t storeMetaDataInBuffers_l(
             OMX_U32 portIndex, OMX_BOOL enable, MetadataBufferType *type);
 
@@ -244,10 +253,6 @@
     int retrieveFenceFromMeta_l(
             OMX_BUFFERHEADERTYPE *header, OMX_U32 portIndex);
 
-    status_t emptyBuffer_l(
-            OMX_BUFFERHEADERTYPE *header,
-            OMX_U32 flags, OMX_TICKS timestamp, intptr_t debugAddr, int fenceFd);
-
     // Updates the graphic buffer handle in the metadata buffer for |buffer| and |header| to
     // |graphicBuffer|'s handle. If |updateCodecBuffer| is true, the update will happen in
     // the actual codec buffer (use this if not using emptyBuffer (with no _l) later to
@@ -255,18 +260,27 @@
     // buffer.)
     status_t updateGraphicBufferInMeta_l(
             OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
-            OMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header, bool updateCodecBuffer);
+            IOMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header);
 
-    status_t createGraphicBufferSource(
-            OMX_U32 portIndex, sp<IGraphicBufferConsumer> consumer /* nullable */,
-            MetadataBufferType *type);
-    sp<GraphicBufferSource> getGraphicBufferSource();
-    void setGraphicBufferSource(const sp<GraphicBufferSource>& bufferSource);
+    status_t updateNativeHandleInMeta_l(
+            OMX_U32 portIndex, const sp<NativeHandle> &nativeHandle,
+            IOMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header);
+
+    sp<IOMXBufferSource> getBufferSource();
+    void setBufferSource(const sp<IOMXBufferSource> &bufferSource);
+    // Called when omx_message::FILL_BUFFER_DONE is received. (Currently the
+    // buffer source will fix timestamp in the header if needed.)
+    void codecBufferFilled(omx_message &msg);
 
     // Handles |msg|, and may modify it. Returns true iff completely handled it and
     // |msg| does not need to be sent to the event listener.
     bool handleMessage(omx_message &msg);
 
+    bool handleDataSpaceChanged(omx_message &msg);
+
+    status_t setMaxPtsGapUs(const void *params, size_t size);
+    int64_t getCodecTimestamp(OMX_TICKS timestamp);
+
     OMXNodeInstance(const OMXNodeInstance &);
     OMXNodeInstance &operator=(const OMXNodeInstance &);
 };
diff --git a/media/libstagefright/include/OggExtractor.h b/media/libstagefright/include/OggExtractor.h
index 592c264..55aafed 100644
--- a/media/libstagefright/include/OggExtractor.h
+++ b/media/libstagefright/include/OggExtractor.h
@@ -31,7 +31,7 @@
 struct OggSource;
 
 struct OggExtractor : public MediaExtractor {
-    OggExtractor(const sp<DataSource> &source);
+    explicit OggExtractor(const sp<DataSource> &source);
 
     virtual size_t countTracks();
     virtual sp<IMediaSource> getTrack(size_t index);
diff --git a/media/libstagefright/include/OmxNodeOwner.h b/media/libstagefright/include/OmxNodeOwner.h
new file mode 100644
index 0000000..64ec7f7
--- /dev/null
+++ b/media/libstagefright/include/OmxNodeOwner.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OMX_NODE_OWNER_H_
+
+#define OMX_NODE_OWNER_H_
+
+namespace android {
+
+struct OMXNodeInstance;
+
+/**
+ * This struct is needed to separate OMX from OMXNodeInstance.
+ *
+ * TODO: This might not be needed after Treble transition is complete.
+ */
+struct OmxNodeOwner {
+    virtual status_t freeNode(const sp<OMXNodeInstance> &instance) = 0;
+    virtual ~OmxNodeOwner() {}
+};
+
+}
+
+#endif  // OMX_NODE_OWNER_H_
diff --git a/media/libstagefright/include/PersistentSurface.h b/media/libstagefright/include/PersistentSurface.h
new file mode 100644
index 0000000..d8b75a2
--- /dev/null
+++ b/media/libstagefright/include/PersistentSurface.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef PERSISTENT_SURFACE_H_
+
+#define PERSISTENT_SURFACE_H_
+
+#include <gui/IGraphicBufferProducer.h>
+#include <android/IGraphicBufferSource.h>
+#include <media/stagefright/foundation/ABase.h>
+#include <binder/Parcel.h>
+
+namespace android {
+
+struct PersistentSurface : public RefBase {
+    PersistentSurface() {}
+
+    PersistentSurface(
+            const sp<IGraphicBufferProducer>& bufferProducer,
+            const sp<IGraphicBufferSource>& bufferSource) :
+        mBufferProducer(bufferProducer),
+        mBufferSource(bufferSource) { }
+
+    sp<IGraphicBufferProducer> getBufferProducer() const {
+        return mBufferProducer;
+    }
+
+    sp<IGraphicBufferSource> getBufferSource() const {
+        return mBufferSource;
+    }
+
+    status_t writeToParcel(Parcel *parcel) const {
+        parcel->writeStrongBinder(IInterface::asBinder(mBufferProducer));
+        parcel->writeStrongBinder(IInterface::asBinder(mBufferSource));
+        return NO_ERROR;
+    }
+
+    status_t readFromParcel(const Parcel *parcel) {
+        mBufferProducer = interface_cast<IGraphicBufferProducer>(
+                parcel->readStrongBinder());
+        mBufferSource = interface_cast<IGraphicBufferSource>(
+                parcel->readStrongBinder());
+        return NO_ERROR;
+    }
+
+private:
+    sp<IGraphicBufferProducer> mBufferProducer;
+    sp<IGraphicBufferSource> mBufferSource;
+
+    DISALLOW_EVIL_CONSTRUCTORS(PersistentSurface);
+};
+
+}  // namespace android
+
+#endif  // PERSISTENT_SURFACE_H_
diff --git a/include/media/stagefright/ProcessInfo.h b/media/libstagefright/include/ProcessInfo.h
similarity index 100%
rename from include/media/stagefright/ProcessInfo.h
rename to media/libstagefright/include/ProcessInfo.h
diff --git a/include/media/stagefright/ProcessInfoInterface.h b/media/libstagefright/include/ProcessInfoInterface.h
similarity index 100%
rename from include/media/stagefright/ProcessInfoInterface.h
rename to media/libstagefright/include/ProcessInfoInterface.h
diff --git a/media/libstagefright/include/RemoteDataSource.h b/media/libstagefright/include/RemoteDataSource.h
new file mode 100644
index 0000000..c91ddfc
--- /dev/null
+++ b/media/libstagefright/include/RemoteDataSource.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef REMOTE_DATA_SOURCE_H_
+#define REMOTE_DATA_SOURCE_H_
+
+#include <binder/IMemory.h>
+#include <binder/MemoryDealer.h>
+#include <media/IDataSource.h>
+#include <media/stagefright/DataSource.h>
+
+namespace android {
+
+// Originally in MediaExtractor.cpp
+class RemoteDataSource : public BnDataSource {
+public:
+    static sp<IDataSource> wrap(const sp<DataSource> &source) {
+        if (source.get() == nullptr) {
+            return nullptr;
+        }
+        if (source->getIDataSource().get() != nullptr) {
+            return source->getIDataSource();
+        }
+        return new RemoteDataSource(source);
+    }
+
+    virtual ~RemoteDataSource() {
+        close();
+    }
+    virtual sp<IMemory> getIMemory() {
+        return mMemory;
+    }
+    virtual ssize_t readAt(off64_t offset, size_t size) {
+        ALOGV("readAt(%lld, %zu)", (long long)offset, size);
+        if (size > kBufferSize) {
+            size = kBufferSize;
+        }
+        return mSource->readAt(offset, mMemory->pointer(), size);
+    }
+    virtual status_t getSize(off64_t *size) {
+        return mSource->getSize(size);
+    }
+    virtual void close() {
+        // Protect strong pointer assignments. This also can be called from the binder
+        // clean-up procedure which is running on a separate thread.
+        Mutex::Autolock lock(mCloseLock);
+        mSource = nullptr;
+        mMemory = nullptr;
+    }
+    virtual uint32_t getFlags() {
+        return mSource->flags();
+    }
+    virtual String8 toString()  {
+        return mName;
+    }
+    virtual sp<DecryptHandle> DrmInitialization(const char *mime) {
+        return mSource->DrmInitialization(mime);
+    }
+
+private:
+    enum {
+        kBufferSize = 64 * 1024,
+    };
+
+    sp<IMemory> mMemory;
+    sp<DataSource> mSource;
+    String8 mName;
+    Mutex mCloseLock;
+
+    explicit RemoteDataSource(const sp<DataSource> &source) {
+        mSource = source;
+        sp<MemoryDealer> memoryDealer = new MemoryDealer(kBufferSize, "RemoteDataSource");
+        mMemory = memoryDealer->allocate(kBufferSize);
+        if (mMemory.get() == nullptr) {
+            ALOGE("Failed to allocate memory!");
+        }
+        mName = String8::format("RemoteDataSource(%s)", mSource->toString().string());
+    }
+
+    DISALLOW_EVIL_CONSTRUCTORS(RemoteDataSource);
+};
+
+}  // namespace android
+
+#endif  // REMOTE_DATA_SOURCE_H_
diff --git a/include/media/stagefright/RenderScriptWrapper.h b/media/libstagefright/include/RenderScriptWrapper.h
similarity index 100%
rename from include/media/stagefright/RenderScriptWrapper.h
rename to media/libstagefright/include/RenderScriptWrapper.h
diff --git a/media/libstagefright/include/SampleIterator.h b/media/libstagefright/include/SampleIterator.h
index 2ef41ae..6a3fd3b 100644
--- a/media/libstagefright/include/SampleIterator.h
+++ b/media/libstagefright/include/SampleIterator.h
@@ -25,7 +25,7 @@
 class SampleTable;
 
 struct SampleIterator {
-    SampleIterator(SampleTable *table);
+    explicit SampleIterator(SampleTable *table);
 
     status_t seekTo(uint32_t sampleIndex);
 
diff --git a/media/libstagefright/include/SampleTable.h b/media/libstagefright/include/SampleTable.h
index 2100ca6..eb1a674 100644
--- a/media/libstagefright/include/SampleTable.h
+++ b/media/libstagefright/include/SampleTable.h
@@ -32,7 +32,7 @@
 
 class SampleTable : public RefBase {
 public:
-    SampleTable(const sp<DataSource> &source);
+    explicit SampleTable(const sp<DataSource> &source);
 
     bool isValid() const;
 
diff --git a/media/libstagefright/include/SecureBuffer.h b/media/libstagefright/include/SecureBuffer.h
new file mode 100644
index 0000000..cf7933a
--- /dev/null
+++ b/media/libstagefright/include/SecureBuffer.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SECURE_BUFFER_H_
+
+#define SECURE_BUFFER_H_
+
+#include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
+
+namespace android {
+
+class NativeHandle;
+
+/**
+ * Secure MediaCodecBuffer implementation.
+ *
+ * For classes outside of MediaCodec, this buffer is an opaque buffer only with
+ * the size information. For decryption, it exposes underlying handle/pointer
+ * and its type, which can be fed to ICrypto::decrypt().
+ */
+class SecureBuffer : public MediaCodecBuffer {
+public:
+    SecureBuffer(const sp<AMessage> &format, const void *ptr, size_t size);
+    SecureBuffer(const sp<AMessage> &format, const sp<NativeHandle> &handle, size_t size);
+
+    virtual ~SecureBuffer() = default;
+
+    void *getDestinationPointer();
+    ICrypto::DestinationType getDestinationType();
+
+private:
+    SecureBuffer() = delete;
+
+    const void *mPointer;
+    const sp<NativeHandle> mHandle;
+};
+
+}  // namespace android
+
+#endif  // SECURE_BUFFER_H_
diff --git a/media/libstagefright/include/SharedMemoryBuffer.h b/media/libstagefright/include/SharedMemoryBuffer.h
new file mode 100644
index 0000000..92df68a
--- /dev/null
+++ b/media/libstagefright/include/SharedMemoryBuffer.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SHARED_MEMORY_BUFFER_H_
+
+#define SHARED_MEMORY_BUFFER_H_
+
+#include <media/MediaCodecBuffer.h>
+#include <android/hidl/memory/1.0/IMemory.h>
+
+namespace android {
+
+struct AMessage;
+class IMemory;
+
+/**
+ * MediaCodecBuffer implementation based on IMemory.
+ */
+class SharedMemoryBuffer : public MediaCodecBuffer {
+public:
+    typedef ::android::hidl::memory::V1_0::IMemory TMemory;
+    SharedMemoryBuffer(const sp<AMessage> &format, const sp<IMemory> &mem);
+    SharedMemoryBuffer(const sp<AMessage> &format, const sp<TMemory> &mem);
+
+    virtual ~SharedMemoryBuffer() = default;
+
+private:
+    SharedMemoryBuffer() = delete;
+
+    const sp<IMemory> mMemory;
+    const sp<TMemory> mTMemory;
+};
+
+}  // namespace android
+
+#endif  // SHARED_MEMORY_BUFFER_H_
diff --git a/include/media/stagefright/SimpleDecodingSource.h b/media/libstagefright/include/SimpleDecodingSource.h
similarity index 100%
rename from include/media/stagefright/SimpleDecodingSource.h
rename to media/libstagefright/include/SimpleDecodingSource.h
diff --git a/media/libstagefright/include/SimpleSoftOMXComponent.h b/media/libstagefright/include/SimpleSoftOMXComponent.h
index 591b38e..1d1f2bd 100644
--- a/media/libstagefright/include/SimpleSoftOMXComponent.h
+++ b/media/libstagefright/include/SimpleSoftOMXComponent.h
@@ -29,6 +29,11 @@
 
 struct ALooper;
 
+struct CodecProfileLevel {
+    OMX_U32 mProfile;
+    OMX_U32 mLevel;
+};
+
 struct SimpleSoftOMXComponent : public SoftOMXComponent {
     SimpleSoftOMXComponent(
             const char *name,
diff --git a/media/libstagefright/include/SkipCutBuffer.h b/media/libstagefright/include/SkipCutBuffer.h
new file mode 100644
index 0000000..0fb5690
--- /dev/null
+++ b/media/libstagefright/include/SkipCutBuffer.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SKIP_CUT_BUFFER_H_
+
+#define SKIP_CUT_BUFFER_H_
+
+#include <media/MediaCodecBuffer.h>
+#include <media/stagefright/MediaBuffer.h>
+#include <media/stagefright/foundation/ABuffer.h>
+
+namespace android {
+
+/**
+ * utility class to cut the start and end off a stream of data in MediaBuffers
+ *
+ */
+class SkipCutBuffer: public RefBase {
+ public:
+    // 'skip' is the number of frames to skip from the beginning
+    // 'cut' is the number of frames to cut from the end
+    // 'num16BitChannels' is the number of channels, which are assumed to be 16 bit wide each
+    SkipCutBuffer(size_t skip, size_t cut, size_t num16Channels);
+
+    // Submit one MediaBuffer for skipping and cutting. This may consume all or
+    // some of the data in the buffer, or it may add data to it.
+    // After this, the caller should continue processing the buffer as usual.
+    void submit(MediaBuffer *buffer);
+    void submit(const sp<ABuffer>& buffer);    // same as above, but with an ABuffer
+    void submit(const sp<MediaCodecBuffer>& buffer);    // same as above, but with an ABuffer
+    void clear();
+    size_t size(); // how many bytes are currently stored in the buffer
+
+ protected:
+    virtual ~SkipCutBuffer();
+
+ private:
+    void write(const char *src, size_t num);
+    size_t read(char *dst, size_t num);
+    template <typename T>
+    void submitInternal(const sp<T>& buffer);
+    int32_t mSkip;
+    int32_t mFrontPadding;
+    int32_t mBackPadding;
+    int32_t mWriteHead;
+    int32_t mReadHead;
+    int32_t mCapacity;
+    char* mCutBuffer;
+    DISALLOW_EVIL_CONSTRUCTORS(SkipCutBuffer);
+};
+
+}  // namespace android
+
+#endif  // OMX_CODEC_H_
diff --git a/include/media/stagefright/StagefrightMediaScanner.h b/media/libstagefright/include/StagefrightMediaScanner.h
similarity index 100%
rename from include/media/stagefright/StagefrightMediaScanner.h
rename to media/libstagefright/include/StagefrightMediaScanner.h
diff --git a/media/libstagefright/include/SurfaceMediaSource.h b/media/libstagefright/include/SurfaceMediaSource.h
new file mode 100644
index 0000000..ae19a75
--- /dev/null
+++ b/media/libstagefright/include/SurfaceMediaSource.h
@@ -0,0 +1,248 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_GUI_SURFACEMEDIASOURCE_H
+#define ANDROID_GUI_SURFACEMEDIASOURCE_H
+
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/BufferQueue.h>
+
+#include <utils/threads.h>
+#include <utils/Vector.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/stagefright/MediaBuffer.h>
+
+#include <MetadataBufferType.h>
+
+#include "foundation/ABase.h"
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+class String8;
+class GraphicBuffer;
+
+// ASSUMPTIONS
+// 1. SurfaceMediaSource is initialized with width*height which
+// can never change.  However, deqeueue buffer does not currently
+// enforce this as in BufferQueue, dequeue can be used by Surface
+// which can modify the default width and heght.  Also neither the width
+// nor height can be 0.
+// 2. setSynchronousMode is never used (basically no one should call
+// setSynchronousMode(false)
+// 3. setCrop, setTransform, setScalingMode should never be used
+// 4. queueBuffer returns a filled buffer to the SurfaceMediaSource. In addition, a
+// timestamp must be provided for the buffer. The timestamp is in
+// nanoseconds, and must be monotonically increasing. Its other semantics
+// (zero point, etc) are client-dependent and should be documented by the
+// client.
+// 5. Once disconnected, SurfaceMediaSource can be reused (can not
+// connect again)
+// 6. Stop is a hard stop, the last few frames held by the encoder
+// may be dropped.  It is possible to wait for the buffers to be
+// returned (but not implemented)
+
+#define DEBUG_PENDING_BUFFERS   0
+
+class SurfaceMediaSource : public MediaSource,
+                                public MediaBufferObserver,
+                                protected ConsumerListener {
+public:
+    enum { MIN_UNDEQUEUED_BUFFERS = 4};
+
+    struct FrameAvailableListener : public virtual RefBase {
+        // onFrameAvailable() is called from queueBuffer() is the FIFO is
+        // empty. You can use SurfaceMediaSource::getQueuedCount() to
+        // figure out if there are more frames waiting.
+        // This is called without any lock held can be called concurrently by
+        // multiple threads.
+        virtual void onFrameAvailable() = 0;
+    };
+
+    SurfaceMediaSource(uint32_t bufferWidth, uint32_t bufferHeight);
+
+    virtual ~SurfaceMediaSource();
+
+    // For the MediaSource interface for use by StageFrightRecorder:
+    virtual status_t start(MetaData *params = NULL);
+    virtual status_t stop();
+    virtual status_t read(MediaBuffer **buffer,
+            const ReadOptions *options = NULL);
+    virtual sp<MetaData> getFormat();
+
+    // Get / Set the frame rate used for encoding. Default fps = 30
+    status_t setFrameRate(int32_t fps) ;
+    int32_t getFrameRate( ) const;
+
+    // The call for the StageFrightRecorder to tell us that
+    // it is done using the MediaBuffer data so that its state
+    // can be set to FREE for dequeuing
+    virtual void signalBufferReturned(MediaBuffer* buffer);
+    // end of MediaSource interface
+
+    // getTimestamp retrieves the timestamp associated with the image
+    // set by the most recent call to read()
+    //
+    // The timestamp is in nanoseconds, and is monotonically increasing. Its
+    // other semantics (zero point, etc) are source-dependent and should be
+    // documented by the source.
+    int64_t getTimestamp();
+
+    // setFrameAvailableListener sets the listener object that will be notified
+    // when a new frame becomes available.
+    void setFrameAvailableListener(const sp<FrameAvailableListener>& listener);
+
+    // dump our state in a String
+    void dump(String8& result) const;
+    void dump(String8& result, const char* prefix, char* buffer,
+                                                    size_t SIZE) const;
+
+    // metaDataStoredInVideoBuffers tells the encoder what kind of metadata
+    // is passed through the buffers. Currently, it is set to ANWBuffer
+    MetadataBufferType metaDataStoredInVideoBuffers() const;
+
+    sp<IGraphicBufferProducer> getProducer() const { return mProducer; }
+
+    // To be called before start()
+    status_t setMaxAcquiredBufferCount(size_t count);
+
+    // To be called before start()
+    status_t setUseAbsoluteTimestamps();
+
+protected:
+
+    // Implementation of the BufferQueue::ConsumerListener interface.  These
+    // calls are used to notify the Surface of asynchronous events in the
+    // BufferQueue.
+    virtual void onFrameAvailable(const BufferItem& item);
+
+    // Used as a hook to BufferQueue::disconnect()
+    // This is called by the client side when it is done
+    // TODO: Currently, this also sets mStopped to true which
+    // is needed for unblocking the encoder which might be
+    // waiting to read more frames. So if on the client side,
+    // the same thread supplies the frames and also calls stop
+    // on the encoder, the client has to call disconnect before
+    // it calls stop.
+    // In the case of the camera,
+    // that need not be required since the thread supplying the
+    // frames is separate than the one calling stop.
+    virtual void onBuffersReleased();
+
+    // SurfaceMediaSource can't handle sideband streams, so this is not expected
+    // to ever be called. Does nothing.
+    virtual void onSidebandStreamChanged();
+
+    static bool isExternalFormat(uint32_t format);
+
+private:
+    // A BufferQueue, represented by these interfaces, is the exchange point
+    // between the producer and this consumer
+    sp<IGraphicBufferProducer> mProducer;
+    sp<IGraphicBufferConsumer> mConsumer;
+
+    struct SlotData {
+        sp<GraphicBuffer> mGraphicBuffer;
+        uint64_t mFrameNumber;
+    };
+
+    // mSlots caches GraphicBuffers and frameNumbers from the buffer queue
+    SlotData mSlots[BufferQueue::NUM_BUFFER_SLOTS];
+
+    // The permenent width and height of SMS buffers
+    int mWidth;
+    int mHeight;
+
+    // mCurrentSlot is the buffer slot index of the buffer that is currently
+    // being used by buffer consumer
+    // (e.g. StageFrightRecorder in the case of SurfaceMediaSource or GLTexture
+    // in the case of Surface).
+    // It is initialized to INVALID_BUFFER_SLOT,
+    // indicating that no buffer slot is currently bound to the texture. Note,
+    // however, that a value of INVALID_BUFFER_SLOT does not necessarily mean
+    // that no buffer is bound to the texture. A call to setBufferCount will
+    // reset mCurrentTexture to INVALID_BUFFER_SLOT.
+    int mCurrentSlot;
+
+    // mCurrentBuffers is a list of the graphic buffers that are being used by
+    // buffer consumer (i.e. the video encoder). It's possible that these
+    // buffers are not associated with any buffer slots, so we must track them
+    // separately.  Buffers are added to this list in read, and removed from
+    // this list in signalBufferReturned
+    Vector<sp<GraphicBuffer> > mCurrentBuffers;
+
+    size_t mNumPendingBuffers;
+
+#if DEBUG_PENDING_BUFFERS
+    Vector<MediaBuffer *> mPendingBuffers;
+#endif
+
+    // mCurrentTimestamp is the timestamp for the current texture. It
+    // gets set to mLastQueuedTimestamp each time updateTexImage is called.
+    int64_t mCurrentTimestamp;
+
+    // mFrameAvailableListener is the listener object that will be called when a
+    // new frame becomes available. If it is not NULL it will be called from
+    // queueBuffer.
+    sp<FrameAvailableListener> mFrameAvailableListener;
+
+    // mMutex is the mutex used to prevent concurrent access to the member
+    // variables of SurfaceMediaSource objects. It must be locked whenever the
+    // member variables are accessed.
+    mutable Mutex mMutex;
+
+    ////////////////////////// For MediaSource
+    // Set to a default of 30 fps if not specified by the client side
+    int32_t mFrameRate;
+
+    // mStarted is a flag to check if the recording is going on
+    bool mStarted;
+
+    // mNumFramesReceived indicates the number of frames recieved from
+    // the client side
+    int mNumFramesReceived;
+    // mNumFramesEncoded indicates the number of frames passed on to the
+    // encoder
+    int mNumFramesEncoded;
+
+    // mFirstFrameTimestamp is the timestamp of the first received frame.
+    // It is used to offset the output timestamps so recording starts at time 0.
+    int64_t mFirstFrameTimestamp;
+    // mStartTimeNs is the start time passed into the source at start, used to
+    // offset timestamps.
+    int64_t mStartTimeNs;
+
+    size_t mMaxAcquiredBufferCount;
+
+    bool mUseAbsoluteTimestamps;
+
+    // mFrameAvailableCondition condition used to indicate whether there
+    // is a frame available for dequeuing
+    Condition mFrameAvailableCondition;
+
+    Condition mMediaBuffersAvailableCondition;
+
+    // Allocate and return a new MediaBuffer and pass the ANW buffer as metadata into it.
+    void passMetadataBuffer_l(MediaBuffer **buffer, ANativeWindowBuffer *bufferHandle) const;
+
+    // Avoid copying and equating and default constructor
+    DISALLOW_EVIL_CONSTRUCTORS(SurfaceMediaSource);
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_GUI_SURFACEMEDIASOURCE_H
diff --git a/media/libstagefright/include/SurfaceUtils.h b/media/libstagefright/include/SurfaceUtils.h
new file mode 100644
index 0000000..a7747c7
--- /dev/null
+++ b/media/libstagefright/include/SurfaceUtils.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SURFACE_UTILS_H_
+
+#define SURFACE_UTILS_H_
+
+#include <utils/Errors.h>
+
+struct ANativeWindow;
+
+namespace android {
+
+/**
+ * Configures |nativeWindow| for given |width|x|height|, pixel |format|, |rotation| and |usage|.
+ * If |reconnect| is true, reconnects to the native window before hand.
+ * @return first error encountered, or NO_ERROR on success.
+ */
+status_t setNativeWindowSizeFormatAndUsage(
+        ANativeWindow *nativeWindow /* nonnull */,
+        int width, int height, int format, int rotation, int usage, bool reconnect);
+status_t pushBlankBuffersToNativeWindow(ANativeWindow *nativeWindow /* nonnull */);
+status_t nativeWindowConnect(ANativeWindow *surface, const char *reason);
+status_t nativeWindowDisconnect(ANativeWindow *surface, const char *reason);
+
+} // namespace android
+
+#endif  // SURFACE_UTILS_H_
diff --git a/media/libstagefright/include/Utils.h b/media/libstagefright/include/Utils.h
new file mode 100644
index 0000000..88a416a
--- /dev/null
+++ b/media/libstagefright/include/Utils.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTILS_H_
+
+#define UTILS_H_
+
+#include <media/stagefright/foundation/AString.h>
+#include <stdint.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <system/audio.h>
+#include <media/BufferingSettings.h>
+#include <media/MediaPlayerInterface.h>
+
+namespace android {
+
+#define FOURCC(c1, c2, c3, c4) \
+    ((c1) << 24 | (c2) << 16 | (c3) << 8 | (c4))
+
+uint16_t U16_AT(const uint8_t *ptr);
+uint32_t U32_AT(const uint8_t *ptr);
+uint64_t U64_AT(const uint8_t *ptr);
+
+uint16_t U16LE_AT(const uint8_t *ptr);
+uint32_t U32LE_AT(const uint8_t *ptr);
+uint64_t U64LE_AT(const uint8_t *ptr);
+
+uint64_t ntoh64(uint64_t x);
+uint64_t hton64(uint64_t x);
+
+class MetaData;
+struct AMessage;
+status_t convertMetaDataToMessage(
+        const sp<MetaData> &meta, sp<AMessage> *format);
+void convertMessageToMetaData(
+        const sp<AMessage> &format, sp<MetaData> &meta);
+
+// Returns a pointer to the next NAL start code in buffer of size |length| starting at |data|, or
+// a pointer to the end of the buffer if the start code is not found.
+// TODO: combine this with avc_utils::getNextNALUnit
+const uint8_t *findNextNalStartCode(const uint8_t *data, size_t length);
+
+AString MakeUserAgent();
+
+// Convert a MIME type to a AudioSystem::audio_format
+status_t mapMimeToAudioFormat(audio_format_t& format, const char* mime);
+
+// Convert a aac profile to a AudioSystem::audio_format
+void mapAACProfileToAudioFormat(audio_format_t& format, uint64_t eAacProfile);
+
+// Send information from MetaData to the HAL via AudioSink
+status_t sendMetaDataToHal(sp<MediaPlayerBase::AudioSink>& sink, const sp<MetaData>& meta);
+
+// Check whether the stream defined by meta can be offloaded to hardware
+bool canOffloadStream(const sp<MetaData>& meta, bool hasVideo,
+                      bool isStreaming, audio_stream_type_t streamType);
+
+AString uriDebugString(const AString &uri, bool incognito = false);
+
+struct HLSTime {
+    int32_t mSeq;
+    int64_t mTimeUs;
+    sp<AMessage> mMeta;
+
+    explicit HLSTime(const sp<AMessage> &meta = NULL);
+    int64_t getSegmentTimeUs() const;
+};
+
+bool operator <(const HLSTime &t0, const HLSTime &t1);
+
+// read and write various object to/from AMessage
+
+void writeToAMessage(const sp<AMessage> &msg, const AudioPlaybackRate &rate);
+void readFromAMessage(const sp<AMessage> &msg, AudioPlaybackRate *rate /* nonnull */);
+
+void writeToAMessage(const sp<AMessage> &msg, const AVSyncSettings &sync, float videoFpsHint);
+void readFromAMessage(
+        const sp<AMessage> &msg, AVSyncSettings *sync /* nonnull */, float *videoFps /* nonnull */);
+
+void writeToAMessage(const sp<AMessage> &msg, const BufferingSettings &buffering);
+void readFromAMessage(const sp<AMessage> &msg, BufferingSettings *buffering /* nonnull */);
+
+AString nameForFd(int fd);
+
+}  // namespace android
+
+#endif  // UTILS_H_
diff --git a/include/media/stagefright/VideoFrameScheduler.h b/media/libstagefright/include/VideoFrameScheduler.h
similarity index 100%
rename from include/media/stagefright/VideoFrameScheduler.h
rename to media/libstagefright/include/VideoFrameScheduler.h
diff --git a/media/libstagefright/include/WAVExtractor.h b/media/libstagefright/include/WAVExtractor.h
index 91ee870..12ad441 100644
--- a/media/libstagefright/include/WAVExtractor.h
+++ b/media/libstagefright/include/WAVExtractor.h
@@ -30,7 +30,7 @@
 class WAVExtractor : public MediaExtractor {
 public:
     // Extractor assumes ownership of "source".
-    WAVExtractor(const sp<DataSource> &source);
+    explicit WAVExtractor(const sp<DataSource> &source);
 
     virtual size_t countTracks();
     virtual sp<IMediaSource> getTrack(size_t index);
diff --git a/media/libstagefright/include/WVMExtractor.h b/media/libstagefright/include/WVMExtractor.h
deleted file mode 100644
index 5b91072..0000000
--- a/media/libstagefright/include/WVMExtractor.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WVM_EXTRACTOR_H_
-
-#define WVM_EXTRACTOR_H_
-
-#include <media/stagefright/MediaExtractor.h>
-#include <utils/Errors.h>
-
-namespace android {
-
-struct AMessage;
-class String8;
-class DataSource;
-
-class WVMLoadableExtractor : public MediaExtractor {
-public:
-    WVMLoadableExtractor() {}
-    virtual ~WVMLoadableExtractor() {}
-
-    virtual int64_t getCachedDurationUs(status_t *finalStatus) = 0;
-    virtual status_t getError() = 0;
-    virtual status_t getEstimatedBandwidthKbps(int32_t *kbps) = 0;
-    virtual void setAdaptiveStreamingMode(bool adaptive) = 0;
-    virtual void setCryptoPluginMode(bool cryptoPluginMode) = 0;
-    virtual void setError(status_t err) = 0;
-    virtual void setUID(uid_t uid) = 0;
-};
-
-class WVMExtractor : public MediaExtractor {
-public:
-    WVMExtractor(const sp<DataSource> &source);
-
-    virtual size_t countTracks();
-    virtual sp<IMediaSource> getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
-    virtual sp<MetaData> getMetaData();
-    virtual void setUID(uid_t uid);
-
-    // Return the amount of data cached from the current
-    // playback positiion (in us).
-    // While more data is still being fetched *finalStatus == OK,
-    // Once fetching is completed (no more data available), *finalStatus != OK
-    // If fetching completed normally (i.e. reached EOS instead of IO error)
-    // *finalStatus == ERROR_END_OF_STREAM
-    int64_t getCachedDurationUs(status_t *finalStatus);
-
-    // Return the current estimated bandwidth
-    status_t getEstimatedBandwidthKbps(int32_t *kbps);
-
-    // Set to use adaptive streaming mode by the WV component.
-    // If adaptive == true, adaptive streaming mode will be used.
-    // Default mode is non-adaptive streaming mode.
-    // Should set to use adaptive streaming mode only if widevine:// protocol
-    // is used.
-    void setAdaptiveStreamingMode(bool adaptive);
-
-    // setCryptoPluginMode(true) to select crypto plugin mode.
-    // In this mode, the extractor returns encrypted data for use
-    // with the MediaCodec model, which handles the decryption in the
-    // codec.
-    void setCryptoPluginMode(bool cryptoPluginMode);
-
-    static bool getVendorLibHandle();
-
-    status_t getError();
-
-    void setError(status_t err);
-
-protected:
-    virtual ~WVMExtractor();
-
-private:
-    sp<DataSource> mDataSource;
-    sp<WVMLoadableExtractor> mImpl;
-
-    WVMExtractor(const WVMExtractor &);
-    WVMExtractor &operator=(const WVMExtractor &);
-};
-
-bool SniffWVM(
-        const sp<DataSource> &source, String8 *mimeType, float *confidence,
-        sp<AMessage> *);
-
-}  // namespace android
-
-#endif  // DRM_EXTRACTOR_H_
-
diff --git a/include/media/stagefright/YUVCanvas.h b/media/libstagefright/include/YUVCanvas.h
similarity index 100%
rename from include/media/stagefright/YUVCanvas.h
rename to media/libstagefright/include/YUVCanvas.h
diff --git a/include/media/stagefright/YUVImage.h b/media/libstagefright/include/YUVImage.h
similarity index 100%
rename from include/media/stagefright/YUVImage.h
rename to media/libstagefright/include/YUVImage.h
diff --git a/media/libstagefright/include/avc_utils.h b/media/libstagefright/include/avc_utils.h
index 235ee63..d05906a 100644
--- a/media/libstagefright/include/avc_utils.h
+++ b/media/libstagefright/include/avc_utils.h
@@ -18,6 +18,7 @@
 
 #define AVC_UTILS_H_
 
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <utils/Errors.h>
 
@@ -37,8 +38,8 @@
 };
 
 struct NALPosition {
-    size_t nalOffset;
-    size_t nalSize;
+    uint32_t nalOffset;
+    uint32_t nalSize;
 };
 
 // Optionally returns sample aspect ratio as well.
@@ -84,6 +85,7 @@
 sp<MetaData> MakeAVCCodecSpecificData(const sp<ABuffer> &accessUnit);
 
 bool IsIDR(const sp<ABuffer> &accessUnit);
+bool IsIDR(const sp<MediaCodecBuffer> &accessUnit);
 bool IsAVCReferenceFrame(const sp<ABuffer> &accessUnit);
 uint32_t FindAVCLayerId(const uint8_t *data, size_t size);
 
diff --git a/include/media/stagefright/foundation/AAtomizer.h b/media/libstagefright/include/foundation/AAtomizer.h
similarity index 100%
rename from include/media/stagefright/foundation/AAtomizer.h
rename to media/libstagefright/include/foundation/AAtomizer.h
diff --git a/media/libstagefright/include/foundation/ABase.h b/media/libstagefright/include/foundation/ABase.h
new file mode 100644
index 0000000..76a787e
--- /dev/null
+++ b/media/libstagefright/include/foundation/ABase.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_BASE_H_
+
+#define A_BASE_H_
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
+#endif
+
+#define DISALLOW_EVIL_CONSTRUCTORS(name) \
+    name(const name &); \
+    name &operator=(const name &) /* NOLINT */
+
+/* Returns true if the size parameter is safe for new array allocation (32-bit)
+ *
+ * Example usage:
+ *
+ * if (!isSafeArraySize<uint32_t>(arraySize)) {
+ *     return BAD_VALUE;
+ * }
+ * ...
+ * uint32_t *myArray = new uint32_t[arraySize];
+ *
+ * There is a bug in gcc versions earlier than 4.8 where the new[] array allocation
+ * will overflow in the internal 32 bit heap allocation, resulting in an
+ * underallocated array. This is a security issue that allows potential overwriting
+ * of other heap data.
+ *
+ * An alternative to checking is to create a safe new array template function which
+ * either throws a std::bad_alloc exception or returns NULL/nullptr_t; NULL considered
+ * safe since normal access of NULL throws an exception.
+ *
+ * https://securityblog.redhat.com/2012/10/31/array-allocation-in-cxx/
+ */
+template <typename T, typename S>
+bool isSafeArraySize(S size) {
+    return size >= 0                            // in case S is signed, ignored if not.
+            && size <= 0xffffffff / sizeof(T);  // max-unsigned-32-bit-int / element-size.
+}
+
+#endif  // A_BASE_H_
diff --git a/include/media/stagefright/foundation/ABitReader.h b/media/libstagefright/include/foundation/ABitReader.h
similarity index 100%
rename from include/media/stagefright/foundation/ABitReader.h
rename to media/libstagefright/include/foundation/ABitReader.h
diff --git a/media/libstagefright/include/foundation/ABuffer.h b/media/libstagefright/include/foundation/ABuffer.h
new file mode 100644
index 0000000..ef11434
--- /dev/null
+++ b/media/libstagefright/include/foundation/ABuffer.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_BUFFER_H_
+
+#define A_BUFFER_H_
+
+#include <sys/types.h>
+#include <stdint.h>
+
+#include <media/stagefright/foundation/ABase.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+struct AMessage;
+class MediaBufferBase;
+
+struct ABuffer : public RefBase {
+    explicit ABuffer(size_t capacity);
+    ABuffer(void *data, size_t capacity);
+
+    uint8_t *base() { return (uint8_t *)mData; }
+    uint8_t *data() { return (uint8_t *)mData + mRangeOffset; }
+    size_t capacity() const { return mCapacity; }
+    size_t size() const { return mRangeLength; }
+    size_t offset() const { return mRangeOffset; }
+
+    void setRange(size_t offset, size_t size);
+
+    // create buffer from dup of some memory block
+    static sp<ABuffer> CreateAsCopy(const void *data, size_t capacity);
+
+    void setInt32Data(int32_t data) { mInt32Data = data; }
+    int32_t int32Data() const { return mInt32Data; }
+
+    sp<AMessage> meta();
+
+    MediaBufferBase *getMediaBufferBase();
+    void setMediaBufferBase(MediaBufferBase *mediaBuffer);
+
+protected:
+    virtual ~ABuffer();
+
+private:
+    sp<AMessage> mMeta;
+
+    MediaBufferBase *mMediaBufferBase;
+
+    void *mData;
+    size_t mCapacity;
+    size_t mRangeOffset;
+    size_t mRangeLength;
+
+    int32_t mInt32Data;
+
+    bool mOwnsData;
+
+    DISALLOW_EVIL_CONSTRUCTORS(ABuffer);
+};
+
+}  // namespace android
+
+#endif  // A_BUFFER_H_
diff --git a/media/libstagefright/include/foundation/AData.h b/media/libstagefright/include/foundation/AData.h
new file mode 100644
index 0000000..49aa0dc
--- /dev/null
+++ b/media/libstagefright/include/foundation/AData.h
@@ -0,0 +1,843 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef STAGEFRIGHT_FOUNDATION_A_DATA_H_
+#define STAGEFRIGHT_FOUNDATION_A_DATA_H_
+
+#include <memory> // for std::shared_ptr, weak_ptr and unique_ptr
+#include <type_traits> // for std::aligned_union
+
+#include <utils/StrongPointer.h> // for android::sp and wp
+
+#include <media/stagefright/foundation/TypeTraits.h>
+#include <media/stagefright/foundation/Flagged.h>
+
+namespace android {
+
+/**
+ * AData is a flexible union type that supports non-POD members. It supports arbitrary types as long
+ * as they are either moveable or copyable.
+ *
+ * Internally, AData is using AUnion - a structure providing the union support. AUnion should not
+ * be used by generic code as it is very unsafe - it opens type aliasing errors where an object of
+ * one type can be easily accessed as an object of another type. AData prevents this.
+ *
+ * AData allows a custom type flagger to be used for future extensions (e.g. allowing automatic
+ * type conversion). A strict and a relaxed flagger are provided as internal types.
+ *
+ * Use as follows:
+ *
+ * AData<int, float>::Basic data; // strict type support
+ * int i = 1;
+ * float f = 7.0f;
+ *
+ * data.set(5);
+ * EXPECT_TRUE(data.find(&i));
+ * EXPECT_FALSE(data.find(&f));
+ * EXPECT_EQ(i, 5);
+ *
+ * data.set(6.0f);
+ * EXPECT_FALSE(data.find(&i));
+ * EXPECT_TRUE(data.find(&f));
+ * EXPECT_EQ(f, 6.0f);
+ *
+ * AData<int, sp<RefBase>>::RelaxedBasic objdata; // relaxed type support
+ * sp<ABuffer> buf = new ABuffer(16), buf2;
+ * sp<RefBase> obj;
+ *
+ * objdata.set(buf);
+ * EXPECT_TRUE(objdata.find(&buf2));
+ * EXPECT_EQ(buf, buf2);
+ * EXPECT_FALSE(objdata.find(&i));
+ * EXPECT_TRUE(objdata.find(&obj));
+ * EXPECT_TRUE(obj == buf);
+ *
+ * obj = buf;
+ * objdata.set(obj); // storing as sp<RefBase>
+ * EXPECT_FALSE(objdata.find(&buf2));  // not stored as ABuffer(!)
+ * EXPECT_TRUE(objdata.find(&obj));
+ */
+
+/// \cond Internal
+
+/**
+ * Helper class to call constructor and destructor for a specific type in AUnion.
+ * This class is needed as member function specialization is not allowed for a
+ * templated class.
+ */
+struct _AUnion_impl {
+    /**
+     * Calls placement constuctor for type T with arbitrary arguments for a storage at an address.
+     * Storage MUST be large enough to contain T.
+     * Also clears the slack space after type T. \todo This is not technically needed, so we may
+     * choose to do this just for debugging.
+     *
+     * \param totalSize size of the storage
+     * \param addr      pointer to where object T should be constructed
+     * \param args      arbitrary arguments for constructor
+     */
+    template<typename T, typename ...Args>
+    inline static void emplace(size_t totalSize, T *addr, Args&&... args) {
+        new(addr)T(std::forward<Args>(args)...);
+        // clear slack space - this is not technically required
+        constexpr size_t size = sizeof(T);
+        memset(reinterpret_cast<uint8_t*>(addr) + size, 0, totalSize - size);
+    }
+
+    /**
+     * Calls destuctor for an object of type T located at a specific address.
+     *
+     * \note we do not clear the storage in this case as the storage should not be used
+     * until another object is placed there, at which case the storage will be cleared.
+     *
+     * \param addr    pointer to where object T is stored
+     */
+    template<typename T>
+    inline static void del(T *addr) {
+        addr->~T();
+    }
+};
+
+/** Constructor specialization for void type */
+template<>
+inline void _AUnion_impl::emplace<void>(size_t totalSize, void *addr) {
+    memset(addr, 0, totalSize);
+}
+
+/** Destructor specialization for void type */
+template<>
+inline void _AUnion_impl::del<void>(void *) {
+}
+
+/// \endcond
+
+/**
+ * A templated union class that can contain specific types of data, and provides
+ * constructors, destructor and access methods strictly for those types.
+ *
+ * \note This class is VERY UNSAFE compared to a union, but it allows non-POD unions.
+ * In particular care must be taken that methods are called in a careful order to
+ * prevent accessing objects of one type as another type. This class provides no
+ * facilities to help with this ordering. This is meant to be wrapped by safer
+ * utility classes that do that.
+ *
+ * \param Ts types stored in this union.
+ */
+template<typename ...Ts>
+struct AUnion {
+private:
+    using _type = typename std::aligned_union<0, Ts...>::type; ///< storage type
+    _type mValue;                                              ///< storage
+
+public:
+    /**
+     * Constructs an object of type T with arbitrary arguments in this union. After this call,
+     * this union will contain this object.
+     *
+     * This method MUST be called only when either 1) no object or 2) a void object (equivalent to
+     * no object) is contained in this union.
+     *
+     * \param T     type of object to be constructed. This must be one of the template parameters of
+     *              the union class with the same cv-qualification, or void.
+     * \param args  arbitrary arguments for the constructor
+     */
+    template<
+            typename T, typename ...Args,
+            typename=typename std::enable_if<is_one_of<T, void, Ts...>::value>::type>
+    inline void emplace(Args&&... args) {
+        _AUnion_impl::emplace(
+                sizeof(_type), reinterpret_cast<T*>(&mValue), std::forward<Args>(args)...);
+    }
+
+    /**
+     * Destructs an object of type T in this union. After this call, this union will contain no
+     * object.
+     *
+     * This method MUST be called only when this union contains an object of type T.
+     *
+     * \param T     type of object to be destructed. This must be one of the template parameters of
+     *              the union class with the same cv-qualification, or void.
+     */
+    template<
+            typename T,
+            typename=typename std::enable_if<is_one_of<T, void, Ts...>::value>::type>
+    inline void del() {
+        _AUnion_impl::del(reinterpret_cast<T*>(&mValue));
+    }
+
+    /**
+     * Returns a const reference to the object of type T in this union.
+     *
+     * This method MUST be called only when this union contains an object of type T.
+     *
+     * \param T     type of object to be returned. This must be one of the template parameters of
+     *              the union class with the same cv-qualification.
+     */
+    template<
+            typename T,
+            typename=typename std::enable_if<is_one_of<T, Ts...>::value>::type>
+    inline const T &get() const {
+        return *reinterpret_cast<const T*>(&mValue);
+    }
+
+    /**
+     * Returns a reference to the object of type T in this union.
+     *
+     * This method MUST be called only when this union contains an object of type T.
+     *
+     * \param T     type of object to be returned. This must be one of the template parameters of
+     *              the union class with the same cv-qualification.
+     */
+    template<typename T>
+    inline T &get() {
+        return *reinterpret_cast<T*>(&mValue);
+    }
+};
+
+/**
+ * Helper utility class that copies an object of type T to a destination.
+ *
+ * T must be copy assignable or copy constructible.
+ *
+ * It provides:
+ *
+ * void assign(T*, const U&) // for copiable types - this leaves the source unchanged, hence const.
+ *
+ * \param T type of object to assign to
+ */
+template<
+        typename T,
+        bool=std::is_copy_assignable<T>::value>
+struct _AData_copier {
+    static_assert(std::is_copy_assignable<T>::value, "T must be copy assignable here");
+
+    /**
+     * Copies src to data without modifying data.
+     *
+     * \param data pointer to destination
+     * \param src source object
+     */
+    inline static void assign(T *data, const T &src) {
+        *data = src;
+    }
+
+    template<typename U>
+    using enable_if_T_is_same_as = typename std::enable_if<std::is_same<U, T>::value>::type;
+
+    /**
+     * Downcast specializations for sp<>, shared_ptr<> and weak_ptr<>
+     */
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<sp<Tp>>>
+    inline static void assign(sp<Tp> *data, const sp<U> &src) {
+        *data = static_cast<Tp*>(src.get());
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<wp<Tp>>>
+    inline static void assign(wp<Tp> *data, const wp<U> &src) {
+        sp<U> __tmp = src.promote();
+        *data = static_cast<Tp*>(__tmp.get());
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<sp<Tp>>>
+    inline static void assign(sp<Tp> *data, sp<U> &&src) {
+        sp<U> __tmp = std::move(src); // move src out as get cannot
+        *data = static_cast<Tp*>(__tmp.get());
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<std::shared_ptr<Tp>>>
+    inline static void assign(std::shared_ptr<Tp> *data, const std::shared_ptr<U> &src) {
+        *data = std::static_pointer_cast<Tp>(src);
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<std::shared_ptr<Tp>>>
+    inline static void assign(std::shared_ptr<Tp> *data, std::shared_ptr<U> &&src) {
+        std::shared_ptr<U> __tmp = std::move(src); // move src out as static_pointer_cast cannot
+        *data = std::static_pointer_cast<Tp>(__tmp);
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<std::weak_ptr<Tp>>>
+    inline static void assign(std::weak_ptr<Tp> *data, const std::weak_ptr<U> &src) {
+        *data = std::static_pointer_cast<Tp>(src.lock());
+    }
+
+    // shared_ptrs are implicitly convertible to weak_ptrs but not vice versa, but picking the
+    // first compatible type in Ts requires having shared_ptr types before weak_ptr types, so that
+    // they are stored as shared_ptrs.
+    /**
+     * Provide sensible error message if encountering shared_ptr/weak_ptr ambiguity. This method
+     * is not enough to detect this, only if someone is trying to find the shared_ptr.
+     */
+    template<typename Tp, typename U>
+    inline static void assign(std::shared_ptr<Tp> *, const std::weak_ptr<U> &) {
+        static_assert(std::is_same<Tp, void>::value,
+                      "shared/weak pointer ambiguity. move shared ptr types before weak_ptrs");
+    }
+};
+
+/**
+ * Template specialization for non copy assignable, but copy constructible types.
+ *
+ * \todo Test this. No basic classes are copy constructible but not assignable.
+ *
+ */
+template<typename T>
+struct _AData_copier<T, false> {
+    static_assert(!std::is_copy_assignable<T>::value, "T must not be copy assignable here");
+    static_assert(std::is_copy_constructible<T>::value, "T must be copy constructible here");
+
+    inline static void copy(T *data, const T &src) {
+        data->~T();
+        new(data)T(src);
+    }
+};
+
+/**
+ * Helper utility class that moves an object of type T to a destination.
+ *
+ * T must be move assignable or move constructible.
+ *
+ * It provides multiple methods:
+ *
+ * void assign(T*, T&&)
+ *
+ * \param T type of object to assign
+ */
+template<
+        typename T,
+        bool=std::is_move_assignable<T>::value>
+struct _AData_mover {
+    static_assert(std::is_move_assignable<T>::value, "T must be move assignable here");
+
+    /**
+     * Moves src to data while likely modifying it.
+     *
+     * \param data pointer to destination
+     * \param src source object
+     */
+    inline static void assign(T *data, T &&src) {
+        *data = std::move(src);
+    }
+
+    template<typename U>
+    using enable_if_T_is_same_as = typename std::enable_if<std::is_same<U, T>::value>::type;
+
+    /**
+     * Downcast specializations for sp<>, shared_ptr<> and weak_ptr<>
+     */
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<sp<Tp>>>
+    inline static void assign(sp<Tp> *data, sp<U> &&src) {
+        sp<U> __tmp = std::move(src); // move src out as get cannot
+        *data = static_cast<Tp*>(__tmp.get());
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<std::shared_ptr<Tp>>>
+    inline static void assign(std::shared_ptr<Tp> *data, std::shared_ptr<U> &&src) {
+        std::shared_ptr<U> __tmp = std::move(src); // move src out as static_pointer_cast cannot
+        *data = std::static_pointer_cast<Tp>(__tmp);
+    }
+
+    template<typename Tp, typename Td, typename U, typename Ud,
+            typename=enable_if_T_is_same_as<std::unique_ptr<Tp, Td>>>
+    inline static void assign(std::unique_ptr<Tp, Td> *data, std::unique_ptr<U, Ud> &&src) {
+        *data = std::unique_ptr<Tp, Td>(static_cast<Tp*>(src.release()));
+    }
+
+    // shared_ptrs are implicitly convertible to weak_ptrs but not vice versa, but picking the
+    // first compatible type in Ts requires having shared_ptr types before weak_ptr types, so that
+    // they are stored as shared_ptrs.
+    /**
+     * Provide sensible error message if encountering shared_ptr/weak_ptr ambiguity. This method
+     * is not enough to detect this, only if someone is trying to remove the shared_ptr.
+     */
+    template<typename Tp, typename U>
+    inline static void assign(std::shared_ptr<Tp> *, std::weak_ptr<U> &&) {
+        static_assert(std::is_same<Tp, void>::value,
+                      "shared/weak pointer ambiguity. move shared ptr types before weak_ptrs");
+    }
+
+    // unique_ptrs are implicitly convertible to shared_ptrs but not vice versa, but picking the
+    // first compatible type in Ts requires having unique_ptrs types before shared_ptrs types, so
+    // that they are stored as unique_ptrs.
+    /**
+     * Provide sensible error message if encountering shared_ptr/unique_ptr ambiguity. This method
+     * is not enough to detect this, only if someone is trying to remove the unique_ptr.
+     */
+    template<typename Tp, typename U>
+    inline static void assign(std::unique_ptr<Tp> *, std::shared_ptr<U> &&) {
+        static_assert(std::is_same<Tp, void>::value,
+                      "unique/shared pointer ambiguity. move unique ptr types before shared_ptrs");
+    }
+};
+
+/**
+ * Template specialization for non move assignable, but move constructible types.
+ *
+ * \todo Test this. No basic classes are move constructible but not assignable.
+ *
+ */
+template<typename T>
+struct _AData_mover<T, false> {
+    static_assert(!std::is_move_assignable<T>::value, "T must not be move assignable here");
+    static_assert(std::is_move_constructible<T>::value, "T must be move constructible here");
+
+    inline static void assign(T *data, T &&src) {
+        data->~T();
+        new(data)T(std::move(src));
+    }
+};
+
+/**
+ * Helper template that deletes an object of a specific type (member) in an AUnion.
+ *
+ * \param Flagger type flagger class (see AData)
+ * \param U AUnion object in which the member should be deleted
+ * \param Ts types to consider for the member
+ */
+template<typename Flagger, typename U, typename ...Ts>
+struct _AData_deleter;
+
+/**
+ * Template specialization when there are still types to consider (T and rest)
+ */
+template<typename Flagger, typename U, typename T, typename ...Ts>
+struct _AData_deleter<Flagger, U, T, Ts...> {
+    static bool del(typename Flagger::type flags, U &data) {
+        if (Flagger::canDeleteAs(flags, Flagger::flagFor((T*)0))) {
+            data.template del<T>();
+            return true;
+        }
+        return _AData_deleter<Flagger, U, Ts...>::del(flags, data);
+    }
+};
+
+/**
+ * Template specialization when there are no more types to consider.
+ */
+template<typename Flagger, typename U>
+struct _AData_deleter<Flagger, U> {
+    inline static bool del(typename Flagger::type, U &) {
+        return false;
+    }
+};
+
+/**
+ * Container that can store an arbitrary object of a set of specified types.
+ *
+ * This struct is an outer class that contains various inner classes based on desired type
+ * strictness. The following inner classes are supported:
+ *
+ * AData<types...>::Basic   - strict type support using uint32_t flag.
+ *
+ * AData<types...>::Strict<Flag> - strict type support using custom flag.
+ * AData<types...>::Relaxed<Flag, MaxSize, Align>
+ *                          - relaxed type support with compatible (usually derived) class support
+ *                            for pointer types with added size checking for minimal additional
+ *                            safety.
+ *
+ * AData<types...>::RelaxedBasic - strict type support using uint32_t flag.
+ *
+ * AData<types...>::Custom<flagger> - custom type support (flaggers determine the supported types
+ *                                    and the base type to use for each)
+ *
+ */
+template<typename ...Ts>
+struct AData {
+private:
+    static_assert(are_unique<Ts...>::value, "types must be unique");
+
+    static constexpr size_t num_types = sizeof...(Ts); ///< number of types to support
+
+public:
+    /**
+     * Default (strict) type flagger provided.
+     *
+     * The default flagger simply returns the index of the type within Ts, or 0 for void.
+     *
+     * Type flaggers return a flag for a supported type.
+     *
+     * They must provide:
+     *
+     * - a flagFor(T*) method for supported types _and_ for T=void. T=void is used to mark that no
+     *   object is stored in the container. For this, an arbitrary unique value may be returned.
+     * - a mask field that contains the flag mask.
+     * - a canDeleteAs(Flag, Flag) flag comparison method that checks if a type of a flag can be
+     *   deleted as another type.
+     *
+     * \param Flag the underlying unsigned integral to use for the flags.
+     */
+    template<typename Flag>
+    struct flagger {
+    private:
+        static_assert(std::is_unsigned<Flag>::value, "Flag must be unsigned");
+        static_assert(std::is_integral<Flag>::value, "Flag must be an integral type");
+
+        static constexpr Flag count = num_types + 1;
+
+    public:
+        typedef Flag type; ///< flag type
+
+        static constexpr Flag mask = _Flagged_helper::minMask<Flag>(count); ///< flag mask
+
+        /**
+         * Return the stored type for T. This is itself.
+         */
+        template<typename T>
+        struct store {
+            typedef T as_type; ///< the base type that T is stored as
+        };
+
+        /**
+         * Constexpr method that returns if two flags are compatible for deletion.
+         *
+         * \param objectFlag flag for object to be deleted
+         * \param deleteFlag flag for type that object is to be deleted as
+         */
+        static constexpr bool canDeleteAs(Flag objectFlag, Flag deleteFlag) {
+            // default flagger requires strict type equality
+            return objectFlag == deleteFlag;
+        }
+
+        /**
+         * Constexpr method that returns the flag to use for a given type.
+         *
+         * Function overload for void*.
+         */
+        static constexpr Flag flagFor(void*) {
+            return 0u;
+        }
+
+        /**
+         * Constexpr method that returns the flag to use for a given supported type (T).
+         */
+        template<typename T, typename=typename std::enable_if<is_one_of<T, Ts...>::value>::type>
+        static constexpr Flag flagFor(T*) {
+            return find_first<T, Ts...>::index;
+        }
+    };
+
+    /**
+     * Relaxed flagger returns the index of the type within Ts. However, for pointers T* it returns
+     * the first type in Ts that T* can be converted into (this is normally a base type, but also
+     * works for sp<>, shared_ptr<> or unique_ptr<>). For a bit more strictness, the flag also
+     * contains the size of the class to avoid finding objects that were stored as a different
+     * derived class of the same base class.
+     *
+     * Flag is basically the index of the (base) type in Ts multiplied by the max size stored plus
+     * the size of the type (divided by alignment) for derived pointer types.
+     *
+     * \param MaxSize max supported size for derived class pointers
+     * \param Align alignment to assume for derived class pointers
+     */
+    template<typename Flag, size_t MaxSize=1024, size_t Align=4>
+    struct relaxed_flagger {
+    private:
+        static_assert(std::is_unsigned<Flag>::value, "Flag must be unsigned");
+        static_assert(std::is_integral<Flag>::value, "Flag must be an integral type");
+
+        static constexpr Flag count = num_types + 1;
+        static_assert(std::numeric_limits<Flag>::max() / count > (MaxSize / Align),
+                      "not enough bits to fit into flag");
+
+        static constexpr Flag max_size_stored = MaxSize / Align + 1;
+
+        // T can be converted if it's size is <= MaxSize and it can be converted to one of the Ts
+        template<typename T, size_t size>
+        using enable_if_can_be_converted = typename std::enable_if<
+                (size / Align < max_size_stored
+                        && find_first_convertible_to<T, Ts...>::index)>::type;
+
+
+        template<typename W, typename T, typename=enable_if_can_be_converted<W, sizeof(T)>>
+        static constexpr Flag relaxedFlagFor(W*, T*) {
+            return find_first_convertible_to<W, Ts...>::index * max_size_stored
+                    + (is_one_of<W, Ts...>::value ? 0 : (sizeof(T) / Align));
+        }
+
+    public:
+        typedef Flag type; ///< flag type
+
+        static constexpr Flag mask =
+            _Flagged_helper::minMask<Flag>(count * max_size_stored); ///< flag mask
+
+        /**
+         * Constexpr method that returns if two flags are compatible for deletion.
+         *
+         * \param objectFlag flag for object to be deleted
+         * \param deleteFlag flag for type that object is to be deleted as
+         */
+        static constexpr bool canDeleteAs(Flag objectFlag, Flag deleteFlag) {
+            // can delete if objects have the same base type
+            return
+                objectFlag / max_size_stored == deleteFlag / max_size_stored &&
+                (deleteFlag % max_size_stored) == 0;
+        }
+
+        /**
+         * Constexpr method that returns the flag to use for a given type.
+         *
+         * Function overload for void*.
+         */
+        static constexpr Flag flagFor(void*) {
+            return 0u;
+        }
+
+        /**
+         * Constexpr method that returns the flag to use for a given supported type (T).
+         *
+         * This is a member method to enable both overloading as well as template specialization.
+         */
+        template<typename T, typename=typename std::enable_if<is_one_of<T, Ts...>::value>::type>
+        static constexpr Flag flagFor(T*) {
+            return find_first<T, Ts...>::index * max_size_stored;
+        }
+
+        /**
+         * For precaution, we only consider converting pointers to their base classes.
+         */
+
+        /**
+         * Template specialization for derived class pointers and managed pointers.
+         */
+        template<typename T>
+        static constexpr Flag flagFor(T**p) { return relaxedFlagFor(p, (T*)0); }
+        template<typename T>
+        static constexpr Flag flagFor(std::shared_ptr<T>*p) { return relaxedFlagFor(p, (T*)0); }
+        template<typename T>
+        static constexpr Flag flagFor(std::unique_ptr<T>*p) { return relaxedFlagFor(p, (T*)0); }
+        template<typename T>
+        static constexpr Flag flagFor(std::weak_ptr<T>*p) { return relaxedFlagFor(p, (T*)0); }
+        template<typename T>
+        static constexpr Flag flagFor(sp<T>*p) { return relaxedFlagFor(p, (T*)0); }
+        template<typename T>
+        static constexpr Flag flagFor(wp<T>*p) { return relaxedFlagFor(p, (T*)0); }
+
+        /**
+         * Type support template that provodes the stored type for T.
+         * This is itself if it is one of Ts, or the first type in Ts that T is convertible to.
+         *
+         * NOTE: This template may provide a base class for an unsupported type. Support is
+         * determined by flagFor().
+         */
+        template<typename T>
+        struct store {
+            typedef typename std::conditional<
+                    is_one_of<T, Ts...>::value,
+                    T,
+                    typename find_first_convertible_to<T, Ts...>::type>::type as_type;
+        };
+    };
+
+    /**
+     * Implementation of AData.
+     */
+    template<typename Flagger>
+    struct Custom : protected Flagged<AUnion<Ts...>, typename Flagger::type, Flagger::mask> {
+        using data_t = AUnion<Ts...>;
+        using base_t = Flagged<AUnion<Ts...>, typename Flagger::type, Flagger::mask>;
+
+        /**
+         * Constructor. Initializes this to a container that does not contain any object.
+         */
+        Custom() : base_t(Flagger::flagFor((void*)0)) { }
+
+        /**
+         * Removes the contained object, if any.
+         */
+        ~Custom() {
+            if (!this->clear()) {
+                __builtin_trap();
+                // std::cerr << "could not delete data of type " << this->flags() << std::endl;
+            }
+        }
+
+        /**
+         * Returns whether there is any object contained.
+         */
+        inline bool used() const {
+            return this->flags() != Flagger::flagFor((void*)0);
+        }
+
+        /**
+         * Removes the contained object, if any. Returns true if there are no objects contained,
+         * or false on any error (this is highly unexpected).
+         */
+        bool clear() {
+            if (this->used()) {
+                if (_AData_deleter<Flagger, data_t, Ts...>::del(this->flags(), this->get())) {
+                    this->setFlags(Flagger::flagFor((void*)0));
+                    return true;
+                }
+                return false;
+            }
+            return true;
+        }
+
+        template<typename T>
+        using is_supported_by_flagger =
+            typename std::enable_if<Flagger::flagFor((T*)0) != Flagger::flagFor((void*)0)>::type;
+
+        /**
+         * Checks if there is a copiable object of type T in this container. If there is, it copies
+         * that object into the provided address and returns true. Otherwise, it does nothing and
+         * returns false.
+         *
+         * This method normally requires a flag equality between the stored and retrieved types.
+         * However, it also allows retrieving the stored object as the stored type
+         * (usually base type).
+         *
+         * \param T type of object to sought
+         * \param data address at which the object should be retrieved
+         *
+         * \return true if the object was retrieved. false if it was not.
+         */
+        template<
+                typename T,
+                typename=is_supported_by_flagger<T>>
+        bool find(T *data) const {
+            using B = typename Flagger::template store<T>::as_type;
+            if (this->flags() == Flagger::flagFor((T*)0) ||
+                Flagger::canDeleteAs(this->flags(), Flagger::flagFor((T*)0))) {
+                _AData_copier<T>::assign(data, this->get().template get<B>());
+                return true;
+            }
+            return false;
+        }
+
+        /**
+         * Checks if there is an object of type T in this container. If there is, it moves that
+         * object into the provided address and returns true. Otherwise, it does nothing and returns
+         * false.
+         *
+         * This method normally requires a flag equality between the stored and retrieved types.
+         * However, it also allows retrieving the stored object as the stored type
+         * (usually base type).
+         *
+         * \param T type of object to sought
+         * \param data address at which the object should be retrieved.
+         *
+         * \return true if the object was retrieved. false if it was not.
+         */
+        template<
+                typename T,
+                typename=is_supported_by_flagger<T>>
+        bool remove(T *data) {
+            using B = typename Flagger::template store<T>::as_type;
+            if (this->flags() == Flagger::flagFor((T*)0) ||
+                Flagger::canDeleteAs(this->flags(), Flagger::flagFor((T*)0))) {
+                _AData_mover<T>::assign(data, std::move(this->get().template get<B>()));
+                return true;
+            }
+            return false;
+        }
+
+        /**
+         * Stores an object into this container by copying. If it was successful, returns true.
+         * Otherwise, (e.g. it could not destroy the already stored object) it returns false. This
+         * latter would be highly unexpected.
+         *
+         * \param T type of object to store
+         * \param data object to store
+         *
+         * \return true if the object was stored. false if it was not.
+         */
+        template<
+                typename T,
+                typename=is_supported_by_flagger<T>,
+                typename=typename std::enable_if<
+                        std::is_copy_constructible<T>::value ||
+                        (std::is_default_constructible<T>::value &&
+                                std::is_copy_assignable<T>::value)>::type>
+        bool set(const T &data) {
+            using B = typename Flagger::template store<T>::as_type;
+
+            // if already contains an object of this type, simply assign
+            if (this->flags() == Flagger::flagFor((T*)0) && std::is_same<T, B>::value) {
+                _AData_copier<B>::assign(&this->get().template get<B>(), data);
+                return true;
+            } else if (this->used()) {
+                // destroy previous object
+                if (!this->clear()) {
+                    return false;
+                }
+            }
+            this->get().template emplace<B>(data);
+            this->setFlags(Flagger::flagFor((T *)0));
+            return true;
+        }
+
+        /**
+         * Moves an object into this container. If it was successful, returns true. Otherwise,
+         * (e.g. it could not destroy the already stored object) it returns false. This latter
+         * would be highly unexpected.
+         *
+         * \param T type of object to store
+         * \param data object to store
+         *
+         * \return true if the object was stored. false if it was not.
+         */
+        template<
+                typename T,
+                typename=is_supported_by_flagger<T>>
+        bool set(T &&data) {
+            using B = typename Flagger::template store<T>::as_type;
+
+            // if already contains an object of this type, simply assign
+            if (this->flags() == Flagger::flagFor((T*)0) && std::is_same<T, B>::value) {
+                _AData_mover<B>::assign(&this->get().template get<B>(), std::forward<T&&>(data));
+                return true;
+            } else if (this->used()) {
+                // destroy previous object
+                if (!this->clear()) {
+                    return false;
+                }
+            }
+            this->get().template emplace<B>(std::forward<T&&>(data));
+            this->setFlags(Flagger::flagFor((T *)0));
+            return true;
+        }
+    };
+
+    /**
+     * Basic AData using the default type flagger and requested flag type.
+     *
+     * \param Flag desired flag type to use. Must be an unsigned and std::integral type.
+     */
+    template<typename Flag>
+    using Strict = Custom<flagger<Flag>>;
+
+    /**
+     * Basic AData using the default type flagger and uint32_t flag.
+     */
+    using Basic = Strict<uint32_t>;
+
+    /**
+     * AData using the relaxed type flagger for max size and requested flag type.
+     *
+     * \param Flag desired flag type to use. Must be an unsigned and std::integral type.
+     */
+    template<typename Flag, size_t MaxSize = 1024, size_t Align = 4>
+    using Relaxed = Custom<relaxed_flagger<Flag, MaxSize, Align>>;
+
+    /**
+     * Basic AData using the relaxed type flagger and uint32_t flag.
+     */
+    using RelaxedBasic = Relaxed<uint32_t>;
+};
+
+}  // namespace android
+
+#endif  // STAGEFRIGHT_FOUNDATION_A_DATA_H_
+
diff --git a/media/libstagefright/include/foundation/ADebug.h b/media/libstagefright/include/foundation/ADebug.h
new file mode 100644
index 0000000..9ad45f3
--- /dev/null
+++ b/media/libstagefright/include/foundation/ADebug.h
@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_DEBUG_H_
+
+#define A_DEBUG_H_
+
+#include <string.h>
+
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/foundation/AString.h>
+#include <utils/Log.h>
+
+namespace android {
+
+inline static const char *asString(status_t i, const char *def = "??") {
+    switch (i) {
+        case NO_ERROR:              return "NO_ERROR";
+        case UNKNOWN_ERROR:         return "UNKNOWN_ERROR";
+        case NO_MEMORY:             return "NO_MEMORY";
+        case INVALID_OPERATION:     return "INVALID_OPERATION";
+        case BAD_VALUE:             return "BAD_VALUE";
+        case BAD_TYPE:              return "BAD_TYPE";
+        case NAME_NOT_FOUND:        return "NAME_NOT_FOUND";
+        case PERMISSION_DENIED:     return "PERMISSION_DENIED";
+        case NO_INIT:               return "NO_INIT";
+        case ALREADY_EXISTS:        return "ALREADY_EXISTS";
+        case DEAD_OBJECT:           return "DEAD_OBJECT";
+        case FAILED_TRANSACTION:    return "FAILED_TRANSACTION";
+        case BAD_INDEX:             return "BAD_INDEX";
+        case NOT_ENOUGH_DATA:       return "NOT_ENOUGH_DATA";
+        case WOULD_BLOCK:           return "WOULD_BLOCK";
+        case TIMED_OUT:             return "TIMED_OUT";
+        case UNKNOWN_TRANSACTION:   return "UNKNOWN_TRANSACTION";
+        case FDS_NOT_ALLOWED:       return "FDS_NOT_ALLOWED";
+        default:                    return def;
+    }
+}
+
+#define LITERAL_TO_STRING_INTERNAL(x)    #x
+#define LITERAL_TO_STRING(x) LITERAL_TO_STRING_INTERNAL(x)
+
+#define CHECK(condition)                                \
+    LOG_ALWAYS_FATAL_IF(                                \
+            !(condition),                               \
+            "%s",                                       \
+            __FILE__ ":" LITERAL_TO_STRING(__LINE__)    \
+            " CHECK(" #condition ") failed.")
+
+#define MAKE_COMPARATOR(suffix,op)                          \
+    template<class A, class B>                              \
+    AString Compare_##suffix(const A &a, const B &b) {      \
+        AString res;                                        \
+        if (!(a op b)) {                                    \
+            res.append(a);                                  \
+            res.append(" vs. ");                            \
+            res.append(b);                                  \
+        }                                                   \
+        return res;                                         \
+    }
+
+MAKE_COMPARATOR(EQ,==)
+MAKE_COMPARATOR(NE,!=)
+MAKE_COMPARATOR(LE,<=)
+MAKE_COMPARATOR(GE,>=)
+MAKE_COMPARATOR(LT,<)
+MAKE_COMPARATOR(GT,>)
+
+#define CHECK_OP(x,y,suffix,op)                                         \
+    do {                                                                \
+        AString ___res = Compare_##suffix(x, y);                        \
+        if (!___res.empty()) {                                          \
+            AString ___full =                                           \
+                __FILE__ ":" LITERAL_TO_STRING(__LINE__)                \
+                    " CHECK_" #suffix "( " #x "," #y ") failed: ";      \
+            ___full.append(___res);                                     \
+                                                                        \
+            LOG_ALWAYS_FATAL("%s", ___full.c_str());                    \
+        }                                                               \
+    } while (false)
+
+#define CHECK_EQ(x,y)   CHECK_OP(x,y,EQ,==)
+#define CHECK_NE(x,y)   CHECK_OP(x,y,NE,!=)
+#define CHECK_LE(x,y)   CHECK_OP(x,y,LE,<=)
+#define CHECK_LT(x,y)   CHECK_OP(x,y,LT,<)
+#define CHECK_GE(x,y)   CHECK_OP(x,y,GE,>=)
+#define CHECK_GT(x,y)   CHECK_OP(x,y,GT,>)
+
+#define TRESPASS(...) \
+        LOG_ALWAYS_FATAL(                                       \
+            __FILE__ ":" LITERAL_TO_STRING(__LINE__)            \
+                " Should not be here. " __VA_ARGS__);
+
+#ifdef NDEBUG
+#define CHECK_DBG CHECK
+#define CHECK_EQ_DBG CHECK_EQ
+#define CHECK_NE_DBG CHECK_NE
+#define CHECK_LE_DBG CHECK_LE
+#define CHECK_LT_DBG CHECK_LT
+#define CHECK_GE_DBG CHECK_GE
+#define CHECK_GT_DBG CHECK_GT
+#define TRESPASS_DBG TRESPASS
+#else
+#define CHECK_DBG(condition)
+#define CHECK_EQ_DBG(x,y)
+#define CHECK_NE_DBG(x,y)
+#define CHECK_LE_DBG(x,y)
+#define CHECK_LT_DBG(x,y)
+#define CHECK_GE_DBG(x,y)
+#define CHECK_GT_DBG(x,y)
+#define TRESPASS_DBG(...)
+#endif
+
+struct ADebug {
+    enum Level {
+        kDebugNone,             // no debug
+        kDebugLifeCycle,        // lifecycle events: creation/deletion
+        kDebugState,            // commands and events
+        kDebugConfig,           // configuration
+        kDebugInternalState,    // internal state changes
+        kDebugAll,              // all
+        kDebugMax = kDebugAll,
+
+    };
+
+    // parse the property or string to get a long-type level for a component name
+    // string format is:
+    // <level>[:<glob>][,<level>[:<glob>]...]
+    // - <level> is 0-5 corresponding to ADebug::Level
+    // - <glob> is used to match component name case insensitively, if omitted, it
+    //   matches all components
+    // - string is read left-to-right, and the last matching level is returned, or
+    //   the def if no terms matched
+    static long GetLevelFromSettingsString(
+            const char *name, const char *value, long def);
+    static long GetLevelFromProperty(
+            const char *name, const char *value, long def);
+
+    // same for ADebug::Level - performs clamping to valid debug ranges
+    static Level GetDebugLevelFromProperty(
+            const char *name, const char *propertyName, Level def = kDebugNone);
+
+    // remove redundant segments of a codec name, and return a newly allocated
+    // string suitable for debugging
+    static char *GetDebugName(const char *name);
+
+    inline static bool isExperimentEnabled(
+            const char *name __unused /* nonnull */, bool allow __unused = true) {
+#ifdef ENABLE_STAGEFRIGHT_EXPERIMENTS
+        if (!strcmp(name, "legacy-adaptive")) {
+            return getExperimentFlag(allow, name, 2, 1); // every other day
+        } else if (!strcmp(name, "legacy-setsurface")) {
+            return getExperimentFlag(allow, name, 3, 1); // every third day
+        } else {
+            ALOGE("unknown experiment '%s' (disabled)", name);
+        }
+#endif
+        return false;
+    }
+
+private:
+    // pass in allow, so we can print in the log if the experiment is disabled
+    static bool getExperimentFlag(
+            bool allow, const char *name, uint64_t modulo, uint64_t limit,
+            uint64_t plus = 0, uint64_t timeDivisor = 24 * 60 * 60 /* 1 day */);
+};
+
+}  // namespace android
+
+#endif  // A_DEBUG_H_
+
diff --git a/media/libstagefright/include/foundation/AHandler.h b/media/libstagefright/include/foundation/AHandler.h
new file mode 100644
index 0000000..53d8a9b
--- /dev/null
+++ b/media/libstagefright/include/foundation/AHandler.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_HANDLER_H_
+
+#define A_HANDLER_H_
+
+#include <media/stagefright/foundation/ALooper.h>
+#include <utils/KeyedVector.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+struct AMessage;
+
+struct AHandler : public RefBase {
+    AHandler()
+        : mID(0),
+          mVerboseStats(false),
+          mMessageCounter(0) {
+    }
+
+    ALooper::handler_id id() const {
+        return mID;
+    }
+
+    sp<ALooper> looper() const {
+        return mLooper.promote();
+    }
+
+    wp<ALooper> getLooper() const {
+        return mLooper;
+    }
+
+    wp<AHandler> getHandler() const {
+        // allow getting a weak reference to a const handler
+        return const_cast<AHandler *>(this);
+    }
+
+protected:
+    virtual void onMessageReceived(const sp<AMessage> &msg) = 0;
+
+private:
+    friend struct AMessage;      // deliverMessage()
+    friend struct ALooperRoster; // setID()
+
+    ALooper::handler_id mID;
+    wp<ALooper> mLooper;
+
+    inline void setID(ALooper::handler_id id, const wp<ALooper> &looper) {
+        mID = id;
+        mLooper = looper;
+    }
+
+    bool mVerboseStats;
+    uint32_t mMessageCounter;
+    KeyedVector<uint32_t, uint32_t> mMessages;
+
+    void deliverMessage(const sp<AMessage> &msg);
+
+    DISALLOW_EVIL_CONSTRUCTORS(AHandler);
+};
+
+}  // namespace android
+
+#endif  // A_HANDLER_H_
diff --git a/include/media/stagefright/foundation/AHandlerReflector.h b/media/libstagefright/include/foundation/AHandlerReflector.h
similarity index 100%
rename from include/media/stagefright/foundation/AHandlerReflector.h
rename to media/libstagefright/include/foundation/AHandlerReflector.h
diff --git a/include/media/stagefright/foundation/AHierarchicalStateMachine.h b/media/libstagefright/include/foundation/AHierarchicalStateMachine.h
similarity index 100%
rename from include/media/stagefright/foundation/AHierarchicalStateMachine.h
rename to media/libstagefright/include/foundation/AHierarchicalStateMachine.h
diff --git a/include/media/stagefright/foundation/ALookup.h b/media/libstagefright/include/foundation/ALookup.h
similarity index 100%
rename from include/media/stagefright/foundation/ALookup.h
rename to media/libstagefright/include/foundation/ALookup.h
diff --git a/include/media/stagefright/foundation/ALooper.h b/media/libstagefright/include/foundation/ALooper.h
similarity index 100%
rename from include/media/stagefright/foundation/ALooper.h
rename to media/libstagefright/include/foundation/ALooper.h
diff --git a/media/libstagefright/include/foundation/ALooperRoster.h b/media/libstagefright/include/foundation/ALooperRoster.h
new file mode 100644
index 0000000..5873e68
--- /dev/null
+++ b/media/libstagefright/include/foundation/ALooperRoster.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_LOOPER_ROSTER_H_
+
+#define A_LOOPER_ROSTER_H_
+
+#include <media/stagefright/foundation/ALooper.h>
+#include <utils/KeyedVector.h>
+#include <utils/String16.h>
+
+namespace android {
+
+struct ALooperRoster {
+    ALooperRoster();
+
+    ALooper::handler_id registerHandler(
+            const sp<ALooper> &looper, const sp<AHandler> &handler);
+
+    void unregisterHandler(ALooper::handler_id handlerID);
+    void unregisterStaleHandlers();
+
+    void dump(int fd, const Vector<String16>& args);
+
+private:
+    struct HandlerInfo {
+        wp<ALooper> mLooper;
+        wp<AHandler> mHandler;
+    };
+
+    Mutex mLock;
+    KeyedVector<ALooper::handler_id, HandlerInfo> mHandlers;
+    ALooper::handler_id mNextHandlerID;
+
+    DISALLOW_EVIL_CONSTRUCTORS(ALooperRoster);
+};
+
+}  // namespace android
+
+#endif  // A_LOOPER_ROSTER_H_
diff --git a/media/libstagefright/include/foundation/AMessage.h b/media/libstagefright/include/foundation/AMessage.h
new file mode 100644
index 0000000..8580eb5
--- /dev/null
+++ b/media/libstagefright/include/foundation/AMessage.h
@@ -0,0 +1,244 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_MESSAGE_H_
+
+#define A_MESSAGE_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/foundation/ALooper.h>
+#include <utils/KeyedVector.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+struct ABuffer;
+struct AHandler;
+struct AString;
+class Parcel;
+
+struct AReplyToken : public RefBase {
+    explicit AReplyToken(const sp<ALooper> &looper)
+        : mLooper(looper),
+          mReplied(false) {
+    }
+
+private:
+    friend struct AMessage;
+    friend struct ALooper;
+    wp<ALooper> mLooper;
+    sp<AMessage> mReply;
+    bool mReplied;
+
+    sp<ALooper> getLooper() const {
+        return mLooper.promote();
+    }
+    // if reply is not set, returns false; otherwise, it retrieves the reply and returns true
+    bool retrieveReply(sp<AMessage> *reply) {
+        if (mReplied) {
+            *reply = mReply;
+            mReply.clear();
+        }
+        return mReplied;
+    }
+    // sets the reply for this token. returns OK or error
+    status_t setReply(const sp<AMessage> &reply);
+};
+
+struct AMessage : public RefBase {
+    AMessage();
+    AMessage(uint32_t what, const sp<const AHandler> &handler);
+
+    // Construct an AMessage from a parcel.
+    // nestingAllowed determines how many levels AMessage can be nested inside
+    // AMessage. The default value here is arbitrarily set to 255.
+    // FromParcel() returns NULL on error, which occurs when the input parcel
+    // contains
+    // - an AMessage nested deeper than maxNestingLevel; or
+    // - an item whose type is not recognized by this function.
+    // Types currently recognized by this function are:
+    //   Item types      set/find function suffixes
+    //   ==========================================
+    //     int32_t                Int32
+    //     int64_t                Int64
+    //     size_t                 Size
+    //     float                  Float
+    //     double                 Double
+    //     AString                String
+    //     AMessage               Message
+    static sp<AMessage> FromParcel(const Parcel &parcel,
+                                   size_t maxNestingLevel = 255);
+
+    // Write this AMessage to a parcel.
+    // All items in the AMessage must have types that are recognized by
+    // FromParcel(); otherwise, TRESPASS error will occur.
+    void writeToParcel(Parcel *parcel) const;
+
+    void setWhat(uint32_t what);
+    uint32_t what() const;
+
+    void setTarget(const sp<const AHandler> &handler);
+
+    void clear();
+
+    void setInt32(const char *name, int32_t value);
+    void setInt64(const char *name, int64_t value);
+    void setSize(const char *name, size_t value);
+    void setFloat(const char *name, float value);
+    void setDouble(const char *name, double value);
+    void setPointer(const char *name, void *value);
+    void setString(const char *name, const char *s, ssize_t len = -1);
+    void setString(const char *name, const AString &s);
+    void setObject(const char *name, const sp<RefBase> &obj);
+    void setBuffer(const char *name, const sp<ABuffer> &buffer);
+    void setMessage(const char *name, const sp<AMessage> &obj);
+
+    void setRect(
+            const char *name,
+            int32_t left, int32_t top, int32_t right, int32_t bottom);
+
+    bool contains(const char *name) const;
+
+    bool findInt32(const char *name, int32_t *value) const;
+    bool findInt64(const char *name, int64_t *value) const;
+    bool findSize(const char *name, size_t *value) const;
+    bool findFloat(const char *name, float *value) const;
+    bool findDouble(const char *name, double *value) const;
+    bool findPointer(const char *name, void **value) const;
+    bool findString(const char *name, AString *value) const;
+    bool findObject(const char *name, sp<RefBase> *obj) const;
+    bool findBuffer(const char *name, sp<ABuffer> *buffer) const;
+    bool findMessage(const char *name, sp<AMessage> *obj) const;
+
+    // finds signed integer types cast to int64_t
+    bool findAsInt64(const char *name, int64_t *value) const;
+
+    // finds any numeric type cast to a float
+    bool findAsFloat(const char *name, float *value) const;
+
+    bool findRect(
+            const char *name,
+            int32_t *left, int32_t *top, int32_t *right, int32_t *bottom) const;
+
+    status_t post(int64_t delayUs = 0);
+
+    // Posts the message to its target and waits for a response (or error)
+    // before returning.
+    status_t postAndAwaitResponse(sp<AMessage> *response);
+
+    // If this returns true, the sender of this message is synchronously
+    // awaiting a response and the reply token is consumed from the message
+    // and stored into replyID. The reply token must be used to send the response
+    // using "postReply" below.
+    bool senderAwaitsResponse(sp<AReplyToken> *replyID);
+
+    // Posts the message as a response to a reply token.  A reply token can
+    // only be used once. Returns OK if the response could be posted; otherwise,
+    // an error.
+    status_t postReply(const sp<AReplyToken> &replyID);
+
+    // Performs a deep-copy of "this", contained messages are in turn "dup'ed".
+    // Warning: RefBase items, i.e. "objects" are _not_ copied but only have
+    // their refcount incremented.
+    sp<AMessage> dup() const;
+
+    // Performs a shallow or deep comparison of |this| and |other| and returns
+    // an AMessage with the differences.
+    // Warning: RefBase items, i.e. "objects" are _not_ copied but only have
+    // their refcount incremented.
+    // This is true for AMessages that have no corresponding AMessage equivalent in |other|.
+    // (E.g. there is no such key or the type is different.) On the other hand, changes in
+    // the AMessage (or AMessages if deep is |false|) are returned in new objects.
+    sp<AMessage> changesFrom(const sp<const AMessage> &other, bool deep = false) const;
+
+    AString debugString(int32_t indent = 0) const;
+
+    enum Type {
+        kTypeInt32,
+        kTypeInt64,
+        kTypeSize,
+        kTypeFloat,
+        kTypeDouble,
+        kTypePointer,
+        kTypeString,
+        kTypeObject,
+        kTypeMessage,
+        kTypeRect,
+        kTypeBuffer,
+    };
+
+    size_t countEntries() const;
+    const char *getEntryNameAt(size_t index, Type *type) const;
+
+protected:
+    virtual ~AMessage();
+
+private:
+    friend struct ALooper; // deliver()
+
+    uint32_t mWhat;
+
+    // used only for debugging
+    ALooper::handler_id mTarget;
+
+    wp<AHandler> mHandler;
+    wp<ALooper> mLooper;
+
+    struct Rect {
+        int32_t mLeft, mTop, mRight, mBottom;
+    };
+
+    struct Item {
+        union {
+            int32_t int32Value;
+            int64_t int64Value;
+            size_t sizeValue;
+            float floatValue;
+            double doubleValue;
+            void *ptrValue;
+            RefBase *refValue;
+            AString *stringValue;
+            Rect rectValue;
+        } u;
+        const char *mName;
+        size_t      mNameLength;
+        Type mType;
+        void setName(const char *name, size_t len);
+    };
+
+    enum {
+        kMaxNumItems = 64
+    };
+    Item mItems[kMaxNumItems];
+    size_t mNumItems;
+
+    Item *allocateItem(const char *name);
+    void freeItemValue(Item *item);
+    const Item *findItem(const char *name, Type type) const;
+
+    void setObjectInternal(
+            const char *name, const sp<RefBase> &obj, Type type);
+
+    size_t findItemIndex(const char *name, size_t len) const;
+
+    void deliver();
+
+    DISALLOW_EVIL_CONSTRUCTORS(AMessage);
+};
+
+}  // namespace android
+
+#endif  // A_MESSAGE_H_
diff --git a/include/media/stagefright/foundation/ANetworkSession.h b/media/libstagefright/include/foundation/ANetworkSession.h
similarity index 100%
rename from include/media/stagefright/foundation/ANetworkSession.h
rename to media/libstagefright/include/foundation/ANetworkSession.h
diff --git a/media/libstagefright/include/foundation/AString.h b/media/libstagefright/include/foundation/AString.h
new file mode 100644
index 0000000..ff086b3
--- /dev/null
+++ b/media/libstagefright/include/foundation/AString.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_STRING_H_
+
+#define A_STRING_H_
+
+#include <utils/Errors.h>
+#include <sys/types.h>
+
+namespace android {
+
+class String8;
+class Parcel;
+
+struct AString {
+    AString();
+    AString(const char *s);  // NOLINT, implicit conversion
+    AString(const char *s, size_t size);
+    AString(const String8 &from);  // NOLINT, implicit conversion
+    AString(const AString &from);
+    AString(const AString &from, size_t offset, size_t n);
+    ~AString();
+
+    AString &operator=(const AString &from);
+    void setTo(const char *s);
+    void setTo(const char *s, size_t size);
+    void setTo(const AString &from, size_t offset, size_t n);
+
+    size_t size() const;
+    const char *c_str() const;
+
+    bool empty() const;
+
+    void clear();
+    void trim();
+    void erase(size_t start, size_t n);
+
+    void append(char c) { append(&c, 1); }
+    void append(const char *s);
+    void append(const char *s, size_t size);
+    void append(const AString &from);
+    void append(const AString &from, size_t offset, size_t n);
+    void append(int x);
+    void append(unsigned x);
+    void append(long x);
+    void append(unsigned long x);
+    void append(long long x);
+    void append(unsigned long long x);
+    void append(float x);
+    void append(double x);
+    void append(void *x);
+
+    void insert(const AString &from, size_t insertionPos);
+    void insert(const char *from, size_t size, size_t insertionPos);
+
+    ssize_t find(const char *substring, size_t start = 0) const;
+
+    size_t hash() const;
+
+    bool operator==(const AString &other) const;
+    bool operator!=(const AString &other) const {
+        return !operator==(other);
+    }
+    bool operator<(const AString &other) const;
+    bool operator>(const AString &other) const;
+
+    int compare(const AString &other) const;
+    int compareIgnoreCase(const AString &other) const;
+
+    bool equalsIgnoreCase(const AString &other) const;
+    bool startsWith(const char *prefix) const;
+    bool endsWith(const char *suffix) const;
+    bool startsWithIgnoreCase(const char *prefix) const;
+    bool endsWithIgnoreCase(const char *suffix) const;
+
+    void tolower();
+
+    static AString FromParcel(const Parcel &parcel);
+    status_t writeToParcel(Parcel *parcel) const;
+
+private:
+    static const char *kEmptyString;
+
+    char *mData;
+    size_t mSize;
+    size_t mAllocSize;
+
+    void makeMutable();
+};
+
+AString AStringPrintf(const char *format, ...);
+
+}  // namespace android
+
+#endif  // A_STRING_H_
+
diff --git a/include/media/stagefright/foundation/AStringUtils.h b/media/libstagefright/include/foundation/AStringUtils.h
similarity index 100%
rename from include/media/stagefright/foundation/AStringUtils.h
rename to media/libstagefright/include/foundation/AStringUtils.h
diff --git a/include/media/stagefright/foundation/AUtils.h b/media/libstagefright/include/foundation/AUtils.h
similarity index 100%
rename from include/media/stagefright/foundation/AUtils.h
rename to media/libstagefright/include/foundation/AUtils.h
diff --git a/media/libstagefright/include/foundation/AWakeLock.h b/media/libstagefright/include/foundation/AWakeLock.h
new file mode 100644
index 0000000..323e7d7
--- /dev/null
+++ b/media/libstagefright/include/foundation/AWakeLock.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_WAKELOCK_H_
+#define A_WAKELOCK_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <powermanager/IPowerManager.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class AWakeLock : public RefBase {
+
+public:
+    AWakeLock();
+
+    // NOTE: acquire and release are not thread safe
+
+    // returns true if wakelock was acquired
+    bool acquire();
+    void release(bool force = false);
+
+    virtual ~AWakeLock();
+
+private:
+    sp<IPowerManager> mPowerManager;
+    sp<IBinder>       mWakeLockToken;
+    uint32_t          mWakeLockCount;
+
+    class PMDeathRecipient : public IBinder::DeathRecipient {
+    public:
+        explicit PMDeathRecipient(AWakeLock *wakeLock) : mWakeLock(wakeLock) {}
+        virtual ~PMDeathRecipient() {}
+
+        // IBinder::DeathRecipient
+        virtual void binderDied(const wp<IBinder> &who);
+
+    private:
+        PMDeathRecipient(const PMDeathRecipient&);
+        PMDeathRecipient& operator= (const PMDeathRecipient&);
+
+        AWakeLock *mWakeLock;
+    };
+
+    const sp<PMDeathRecipient> mDeathRecipient;
+
+    void clearPowerManager();
+
+    DISALLOW_EVIL_CONSTRUCTORS(AWakeLock);
+};
+
+}  // namespace android
+
+#endif  // A_WAKELOCK_H_
diff --git a/media/libstagefright/include/foundation/ColorUtils.h b/media/libstagefright/include/foundation/ColorUtils.h
new file mode 100644
index 0000000..b889a02
--- /dev/null
+++ b/media/libstagefright/include/foundation/ColorUtils.h
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef COLOR_UTILS_H_
+
+#define COLOR_UTILS_H_
+
+#include <stdint.h>
+
+#define STRINGIFY_ENUMS
+
+#include <media/stagefright/foundation/AMessage.h>
+
+#include <media/hardware/VideoAPI.h>
+#include <system/graphics.h>
+
+namespace android {
+
+struct ColorUtils {
+    /*
+     * Media-platform color constants. MediaCodec uses (an extended version of) platform-defined
+     * constants that are derived from HAL_DATASPACE, since these are directly exposed to the user.
+     * We extend the values to maintain the richer set of information defined inside media
+     * containers and bitstreams that are not supported by the platform. We also expect vendors
+     * to extend some of these values with vendor-specific values. These are separated into a
+     * vendor-extension section so they won't collide with future platform values.
+     */
+
+#define GET_HAL_ENUM(class, name) HAL_DATASPACE_##class##name
+#define GET_HAL_BITFIELD(class, name) (GET_HAL_ENUM(class, _##name) >> GET_HAL_ENUM(class, _SHIFT))
+
+    enum ColorStandard : uint32_t {
+        kColorStandardUnspecified =          GET_HAL_BITFIELD(STANDARD, UNSPECIFIED),
+        kColorStandardBT709 =                GET_HAL_BITFIELD(STANDARD, BT709),
+        kColorStandardBT601_625 =            GET_HAL_BITFIELD(STANDARD, BT601_625),
+        kColorStandardBT601_625_Unadjusted = GET_HAL_BITFIELD(STANDARD, BT601_625_UNADJUSTED),
+        kColorStandardBT601_525 =            GET_HAL_BITFIELD(STANDARD, BT601_525),
+        kColorStandardBT601_525_Unadjusted = GET_HAL_BITFIELD(STANDARD, BT601_525_UNADJUSTED),
+        kColorStandardBT2020 =               GET_HAL_BITFIELD(STANDARD, BT2020),
+        kColorStandardBT2020Constant =       GET_HAL_BITFIELD(STANDARD, BT2020_CONSTANT_LUMINANCE),
+        kColorStandardBT470M =               GET_HAL_BITFIELD(STANDARD, BT470M),
+        kColorStandardFilm =                 GET_HAL_BITFIELD(STANDARD, FILM),
+        kColorStandardMax =                  GET_HAL_BITFIELD(STANDARD, MASK),
+
+        /* This marks a section of color-standard values that are not supported by graphics HAL,
+           but track defined color primaries-matrix coefficient combinations in media.
+           These are stable for a given release. */
+        kColorStandardExtendedStart = kColorStandardMax + 1,
+
+        /* This marks a section of color-standard values that are not supported by graphics HAL
+           nor using media defined color primaries or matrix coefficients. These may differ per
+           device. */
+        kColorStandardVendorStart = 0x10000,
+    };
+
+    enum ColorTransfer : uint32_t  {
+        kColorTransferUnspecified = GET_HAL_BITFIELD(TRANSFER, UNSPECIFIED),
+        kColorTransferLinear =      GET_HAL_BITFIELD(TRANSFER, LINEAR),
+        kColorTransferSRGB =        GET_HAL_BITFIELD(TRANSFER, SRGB),
+        kColorTransferSMPTE_170M =  GET_HAL_BITFIELD(TRANSFER, SMPTE_170M),
+        kColorTransferGamma22 =     GET_HAL_BITFIELD(TRANSFER, GAMMA2_2),
+        kColorTransferGamma28 =     GET_HAL_BITFIELD(TRANSFER, GAMMA2_8),
+        kColorTransferST2084 =      GET_HAL_BITFIELD(TRANSFER, ST2084),
+        kColorTransferHLG =         GET_HAL_BITFIELD(TRANSFER, HLG),
+        kColorTransferMax =         GET_HAL_BITFIELD(TRANSFER, MASK),
+
+        /* This marks a section of color-transfer values that are not supported by graphics HAL,
+           but track media-defined color-transfer. These are stable for a given release. */
+        kColorTransferExtendedStart = kColorTransferMax + 1,
+
+        /* This marks a section of color-transfer values that are not supported by graphics HAL
+           nor defined by media. These may differ per device. */
+        kColorTransferVendorStart = 0x10000,
+    };
+
+    enum ColorRange : uint32_t  {
+        kColorRangeUnspecified = GET_HAL_BITFIELD(RANGE, UNSPECIFIED),
+        kColorRangeFull =        GET_HAL_BITFIELD(RANGE, FULL),
+        kColorRangeLimited =     GET_HAL_BITFIELD(RANGE, LIMITED),
+        kColorRangeMax =         GET_HAL_BITFIELD(RANGE, MASK),
+
+        /* This marks a section of color-transfer values that are not supported by graphics HAL,
+           but track media-defined color-transfer. These are stable for a given release. */
+        kColorRangeExtendedStart = kColorRangeMax + 1,
+
+        /* This marks a section of color-transfer values that are not supported by graphics HAL
+           nor defined by media. These may differ per device. */
+        kColorRangeVendorStart = 0x10000,
+    };
+
+#undef GET_HAL_BITFIELD
+#undef GET_HAL_ENUM
+
+    /*
+     * Static utilities for codec support
+     */
+
+    // using int32_t for media range/standard/transfers to denote extended ranges
+    // wrap methods change invalid aspects to the Unspecified value
+    static int32_t wrapColorAspectsIntoColorStandard(
+            ColorAspects::Primaries primaries, ColorAspects::MatrixCoeffs coeffs);
+    static int32_t wrapColorAspectsIntoColorRange(ColorAspects::Range range);
+    static int32_t wrapColorAspectsIntoColorTransfer(ColorAspects::Transfer transfer);
+
+    // unwrap methods change invalid aspects to the Other value
+    static status_t unwrapColorAspectsFromColorRange(
+            int32_t range, ColorAspects::Range *aspect);
+    static status_t unwrapColorAspectsFromColorTransfer(
+            int32_t transfer, ColorAspects::Transfer *aspect);
+    static status_t unwrapColorAspectsFromColorStandard(
+            int32_t standard,
+            ColorAspects::Primaries *primaries, ColorAspects::MatrixCoeffs *coeffs);
+
+    static status_t convertPlatformColorAspectsToCodecAspects(
+            int32_t range, int32_t standard, int32_t transfer, ColorAspects &aspects);
+    static status_t convertCodecColorAspectsToPlatformAspects(
+            const ColorAspects &aspects, int32_t *range, int32_t *standard, int32_t *transfer);
+
+    // converts Other values to Unspecified
+    static void convertCodecColorAspectsToIsoAspects(
+            const ColorAspects &aspects,
+            int32_t *primaries, int32_t *transfer, int32_t *coeffs, bool *fullRange);
+    // converts unsupported values to Other
+    static void convertIsoColorAspectsToCodecAspects(
+            int32_t primaries, int32_t transfer, int32_t coeffs, bool fullRange,
+            ColorAspects &aspects);
+
+    // unpack a uint32_t to a full ColorAspects struct
+    static ColorAspects unpackToColorAspects(uint32_t packed);
+
+    // pack a full ColorAspects struct into a uint32_t
+    static uint32_t packToU32(const ColorAspects &aspects);
+
+    // updates Unspecified color aspects to their defaults based on the video size
+    static void setDefaultCodecColorAspectsIfNeeded(
+            ColorAspects &aspects, int32_t width, int32_t height);
+
+    // it returns the closest dataSpace for given color |aspects|. if |mayExpand| is true, it allows
+    // returning a larger dataSpace that contains the color space given by |aspects|, and is better
+    // suited to blending. This requires implicit color space conversion on part of the device.
+    static android_dataspace getDataSpaceForColorAspects(ColorAspects &aspects, bool mayExpand);
+
+    // converts |dataSpace| to a V0 enum, and returns true if dataSpace is an aspect-only value
+    static bool convertDataSpaceToV0(android_dataspace &dataSpace);
+
+    // compares |aspect| to |orig|. Returns |true| if any aspects have changed, except if they
+    // changed to Unspecified value. It also sets the changed values to Unspecified in |aspect|.
+    static bool checkIfAspectsChangedAndUnspecifyThem(
+            ColorAspects &aspects, const ColorAspects &orig, bool usePlatformAspects = false);
+
+    // finds color config in format, defaulting them to 0.
+    static void getColorConfigFromFormat(
+            const sp<AMessage> &format, int *range, int *standard, int *transfer);
+
+    // copies existing color config from |source| to |target|.
+    static void copyColorConfig(const sp<AMessage> &source, sp<AMessage> &target);
+
+    // finds color config in format as ColorAspects, defaulting them to 0.
+    static void getColorAspectsFromFormat(const sp<AMessage> &format, ColorAspects &aspects);
+
+    // writes |aspects| into format. iff |force| is false, Unspecified values are not
+    // written.
+    static void setColorAspectsIntoFormat(
+            const ColorAspects &aspects, sp<AMessage> &format, bool force = false);
+
+    // finds HDR metadata in format as HDRStaticInfo, defaulting them to 0.
+    // Return |true| if could find HDR metadata in format. Otherwise, return |false|.
+    static bool getHDRStaticInfoFromFormat(const sp<AMessage> &format, HDRStaticInfo *info);
+
+    // writes |info| into format.
+    static void setHDRStaticInfoIntoFormat(const HDRStaticInfo &info, sp<AMessage> &format);
+};
+
+inline static const char *asString(android::ColorUtils::ColorStandard i, const char *def = "??") {
+    using namespace android;
+    switch (i) {
+        case ColorUtils::kColorStandardUnspecified:          return "Unspecified";
+        case ColorUtils::kColorStandardBT709:                return "BT709";
+        case ColorUtils::kColorStandardBT601_625:            return "BT601_625";
+        case ColorUtils::kColorStandardBT601_625_Unadjusted: return "BT601_625_Unadjusted";
+        case ColorUtils::kColorStandardBT601_525:            return "BT601_525";
+        case ColorUtils::kColorStandardBT601_525_Unadjusted: return "BT601_525_Unadjusted";
+        case ColorUtils::kColorStandardBT2020:               return "BT2020";
+        case ColorUtils::kColorStandardBT2020Constant:       return "BT2020Constant";
+        case ColorUtils::kColorStandardBT470M:               return "BT470M";
+        case ColorUtils::kColorStandardFilm:                 return "Film";
+        default:                                            return def;
+    }
+}
+
+inline static const char *asString(android::ColorUtils::ColorTransfer i, const char *def = "??") {
+    using namespace android;
+    switch (i) {
+        case ColorUtils::kColorTransferUnspecified: return "Unspecified";
+        case ColorUtils::kColorTransferLinear:      return "Linear";
+        case ColorUtils::kColorTransferSRGB:        return "SRGB";
+        case ColorUtils::kColorTransferSMPTE_170M:  return "SMPTE_170M";
+        case ColorUtils::kColorTransferGamma22:     return "Gamma22";
+        case ColorUtils::kColorTransferGamma28:     return "Gamma28";
+        case ColorUtils::kColorTransferST2084:      return "ST2084";
+        case ColorUtils::kColorTransferHLG:         return "HLG";
+        default:                                   return def;
+    }
+}
+
+inline static const char *asString(android::ColorUtils::ColorRange i, const char *def = "??") {
+    using namespace android;
+    switch (i) {
+        case ColorUtils::kColorRangeUnspecified: return "Unspecified";
+        case ColorUtils::kColorRangeFull:        return "Full";
+        case ColorUtils::kColorRangeLimited:     return "Limited";
+        default:                                return def;
+    }
+}
+
+}  // namespace android
+
+#endif  // COLOR_UTILS_H_
+
diff --git a/media/libstagefright/include/foundation/FileDescriptor.h b/media/libstagefright/include/foundation/FileDescriptor.h
new file mode 100644
index 0000000..7acf4b8
--- /dev/null
+++ b/media/libstagefright/include/foundation/FileDescriptor.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef STAGEFRIGHT_FOUNDATION_FILE_DESCRIPTOR_H_
+#define STAGEFRIGHT_FOUNDATION_FILE_DESCRIPTOR_H_
+
+#include <memory>
+
+namespace android {
+
+/**
+ * FileDescriptor is a utility class for managing file descriptors in a scoped way.
+ *
+ * usage:
+ *
+ * status_t function(int fd) {
+ *   FileDescriptor::Autoclose managedFd(fd);
+ *   if (error_condition)
+ *     return ERROR;
+ *   next_function(managedFd.release());
+ * }
+ */
+struct FileDescriptor {
+    // created this class with minimal methods. more methods can be added here to manage
+    // a shared file descriptor object.
+
+    /**
+     * A locally scoped managed file descriptor object. This object is not shareable/copiable and
+     * is not thread safe.
+     */
+    struct Autoclose {
+        // created this class with minimal methods
+        /**
+         * Creates a locally scoped file descriptor holder object taking ownership of the passed in
+         * file descriptor.
+         */
+        Autoclose(int fd)
+            : mFd(fd) {
+
+        }
+
+        ~Autoclose() {
+            if (isValid()) {
+                ::close(mFd);
+                mFd = kInvalidFileDescriptor;
+            }
+        }
+
+        /**
+         * Releases the managed file descriptor from the holder. This invalidates the (remaining)
+         * file descriptor in this object.
+         */
+        int release() {
+            int managedFd = mFd;
+            mFd = kInvalidFileDescriptor;
+            return managedFd;
+        }
+
+        /**
+         * Checks whether the managed file descriptor is valid
+         */
+        bool isValid() const {
+            return mFd >= 0;
+        }
+
+    private:
+        // not yet needed
+
+        /**
+         * Returns the managed file descriptor from this object without releasing the ownership.
+         * The returned file descriptor has the same lifecycle as the managed file descriptor
+         * in this object. Therefore, care must be taken that it is not closed, and that this
+         * object keeps managing the returned file descriptor for the duration of its use.
+         */
+        int get() const {
+            return mFd;
+        }
+
+    private:
+        int mFd;
+
+        enum {
+            kInvalidFileDescriptor = -1,
+        };
+
+        DISALLOW_EVIL_CONSTRUCTORS(Autoclose);
+    };
+
+private:
+    std::shared_ptr<Autoclose> mSharedFd;
+};
+
+}  // namespace android
+
+#endif  // STAGEFRIGHT_FOUNDATION_FLAGGED_H_
+
diff --git a/media/libstagefright/include/foundation/Flagged.h b/media/libstagefright/include/foundation/Flagged.h
new file mode 100644
index 0000000..bf0afbf
--- /dev/null
+++ b/media/libstagefright/include/foundation/Flagged.h
@@ -0,0 +1,513 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef STAGEFRIGHT_FOUNDATION_FLAGGED_H_
+#define STAGEFRIGHT_FOUNDATION_FLAGGED_H_
+
+#include <media/stagefright/foundation/TypeTraits.h>
+
+namespace android {
+
+/**
+ * Flagged<T, Flag> is basically a specialized std::pair<Flag, T> that automatically optimizes out
+ * the flag if the wrapped type T is already flagged and we can combine the outer and inner flags.
+ *
+ * Flags can be queried/manipulated via flags() an setFlags(Flags). The wrapped value can be
+ * accessed via get(). This template is meant to be inherited by other utility/wrapper classes
+ * that need to store integral information along with the value.
+ *
+ * Users must specify the used bits (MASK) in the flags. Flag getters and setters will enforce this
+ * mask. _Flagged_helper::minMask<Flag> is provided to easily calculate a mask for a max value.
+ *
+ * E.g. adding a safe flag can be achieved like this:
+ *
+ *
+ * enum SafeFlags : uint32_t {
+ *   kUnsafe,
+ *   kSafe,
+ *   kSafeMask = _Flagged_helper::minMask(kSafe),
+ * };
+ * typedef Flagged<int32_t, SafeFlags, kSafeMask> safeInt32;
+ *
+ * safeInt32 a;
+ * a.setFlags(kSafe);
+ * a.get() = 15;
+ * EXPECT_EQ(a.flags(), kSafe);
+ * EXPECT_EQ(a.get(), 15);
+ *
+ *
+ * Flagged also supports lazy or calculated wrapping of already flagged types. Lazy wrapping is
+ * provided automatically (flags are automatically shared if possible, e.g. mask is shifted
+ * automatically to not overlap with used bits of the wrapped type's flags, and fall back to
+ * unshared version of the template.):
+ *
+ * enum OriginFlags : uint32_t {
+ *   kUnknown,
+ *   kConst,
+ *   kCalculated,
+ *   kComponent,
+ *   kApplication,
+ *   kFile,
+ *   kBinder,
+ *   kOriginMask = _Flagged_helper::minMask(kBinder),
+ * };
+ * typedef Flagged<safeInt32, OriginFlags, kOriginMask>
+ *          trackedSafeInt32;
+ *
+ * static_assert(sizeof(trackedSafeInt32) == sizeof(safeInt32), "");
+ *
+ * trackedSafeInt32 b(kConst, kSafe, 1);
+ * EXPECT_EQ(b.flags(), kConst);
+ * EXPECT_EQ(b.get().flags(), kSafe);
+ * EXPECT_EQ(b.get().get(), 1);
+ * b.setFlags(kCalculated);
+ * b.get().setFlags(overflow ? kUnsafe : kSafe);
+ *
+ * One can also choose to share some flag-bits with the wrapped class:
+ *
+ * enum ValidatedFlags : uint32_t {
+ *   kUnsafeV = kUnsafe,
+ *   kSafeV = kSafe,
+ *   kValidated = kSafe | 2,
+ *   kSharedMaskV = kSafeMask,
+ *   kValidatedMask = _Flagged_helper::minMask(kValidated),
+ * };
+ * typedef Flagged<safeInt32, ValidatedFlags, kValidatedMask, kSharedMaskV> validatedInt32;
+ *
+ * validatedInt32 v(kUnsafeV, kSafe, 10);
+ * EXPECT_EQ(v.flags(), kUnsafeV);
+ * EXPECT_EQ(v.get().flags(), kUnsafe);  // !kUnsafeV overrides kSafe
+ * EXPECT_EQ(v.get().get(), 10);
+ * v.setFlags(kValidated);
+ * EXPECT_EQ(v.flags(), kValidated);
+ * EXPECT_EQ(v.get().flags(), kSafe);
+ * v.get().setFlags(kUnsafe);
+ * EXPECT_EQ(v.flags(), 2);  // NOTE: sharing masks with enums allows strange situations to occur
+ */
+
+/**
+ * Helper class for Flagged support. Encapsulates common utilities used by all
+ * templated classes.
+ */
+struct _Flagged_helper {
+    /**
+     * Calculates the value with a given number of top-most bits set.
+     *
+     * This method may be called with a signed flag.
+     *
+     * \param num number of bits to set. This must be between 0 and the number of bits in Flag.
+     *
+     * \return the value where only the given number of top-most bits are set.
+     */
+    template<typename Flag>
+    static constexpr Flag topBits(int num) {
+        return Flag(num > 0 ?
+                    ~((Flag(1) << (sizeof(Flag) * 8 - is_signed_integral<Flag>::value - num)) - 1) :
+                    0);
+    }
+
+    /**
+     * Calculates the minimum mask required to cover a value. Used with the maximum enum value for
+     * an unsigned flag.
+     *
+     * \param maxValue maximum value to cover
+     * \param shift DO NO USE. used internally
+     *
+     * \return mask that can be used that covers the maximum value.
+     */
+    template<typename Flag>
+    static constexpr Flag minMask(Flag maxValue, int shift=sizeof(Flag) * 4) {
+        static_assert(is_unsigned_integral<Flag>::value,
+                      "this method only makes sense for unsigned flags");
+        return shift ? minMask<Flag>(Flag(maxValue | (maxValue >> shift)), shift >> 1) : maxValue;
+    }
+
+    /**
+     * Returns a value left-shifted by an argument as a potential constexpr.
+     *
+     * This method helps around the C-language limitation, when left-shift of a negative value with
+     * even 0 cannot be a constexpr.
+     *
+     * \param value value to shift
+     * \param shift amount of shift
+     * \returns the shifted value as an integral type
+     */
+    template<typename Flag, typename IntFlag = typename underlying_integral_type<Flag>::type>
+    static constexpr IntFlag lshift(Flag value, int shift) {
+        return shift ? value << shift : value;
+    }
+
+private:
+
+    /**
+     * Determines whether mask can be combined with base-mask for a given left shift.
+     *
+     * \param mask desired mask
+     * \param baseMask mask used by T or 0 if T is not flagged by Flag
+     * \param sharedMask desired shared mask (if this is non-0, this must be mask & baseMask)
+     * \param shift desired left shift to be used for mask
+     * \param baseShift left shift used by T or 0 if T is not flagged by Flag
+     * \param effectiveMask effective mask used by T or 0 if T is not flagged by Flag
+     *
+     * \return bool whether mask can be combined with baseMask using the desired values.
+     */
+    template<typename Flag, typename IntFlag=typename underlying_integral_type<Flag>::type>
+    static constexpr bool canCombine(
+            Flag mask, IntFlag baseMask, Flag sharedMask, int shift,
+            int baseShift, IntFlag effectiveMask) {
+        return
+            // verify that shift is valid and mask can be shifted
+            shift >= 0 && (mask & topBits<Flag>(shift)) == 0 &&
+
+            // verify that base mask is part of effective mask (sanity check on arguments)
+            (baseMask & ~(effectiveMask >> baseShift)) == 0 &&
+
+            // if sharing masks, shift must be the base's shift.
+            // verify that shared mask is the overlap of base mask and mask
+            (sharedMask ?
+                    ((sharedMask ^ (baseMask & mask)) == 0 &&
+                     shift == baseShift) :
+
+
+            // otherwise, verify that there is no overlap between mask and base's effective mask
+                    (mask & (effectiveMask >> shift)) == 0);
+    }
+
+
+    /**
+     * Calculates the minimum (left) shift required to combine a mask with the mask of an
+     * underlying type (T, also flagged by Flag).
+     *
+     * \param mask desired mask
+     * \param baseMask mask used by T or 0 if T is not flagged by Flag
+     * \param sharedMask desired shared mask (if this is non-0, this must be mask & baseMask)
+     * \param baseShift left shift used by T
+     * \param effectiveMask effective mask used by T
+     *
+     * \return a non-negative minimum left shift value if mask can be combined with baseMask,
+     *         or -1 if the masks cannot be combined. -2 if the input is invalid.
+     */
+    template<typename Flag,
+             typename IntFlag = typename underlying_integral_type<Flag>::type>
+    static constexpr int getShift(
+            Flag mask, IntFlag baseMask, Flag sharedMask, int baseShift, IntFlag effectiveMask) {
+        return
+            // baseMask must be part of the effective mask
+            (baseMask & ~(effectiveMask >> baseShift)) ? -2 :
+
+            // if sharing masks, shift must be base's shift. verify that shared mask is part of
+            // base mask and mask, and that desired mask still fits with base's shift value
+            sharedMask ?
+                    (canCombine(mask, baseMask, sharedMask, baseShift /* shift */,
+                                baseShift, effectiveMask) ? baseShift : -1) :
+
+            // otherwise, see if 0-shift works
+            ((mask & effectiveMask) == 0) ? 0 :
+
+            // otherwise, verify that mask can be shifted up
+            ((mask & topBits<Flag>(1)) || (mask < 0)) ? -1 :
+
+            incShift(getShift(Flag(mask << 1), baseMask /* unused */, sharedMask /* 0 */,
+                              baseShift /* unused */, effectiveMask));
+    }
+
+    /**
+     * Helper method that increments a non-negative (shift) value.
+     *
+     * This method is used to make it easier to create a constexpr for getShift.
+     *
+     * \param shift (shift) value to increment
+     *
+     * \return original shift if it was negative; otherwise, the shift incremented by one.
+     */
+    static constexpr int incShift(int shift) {
+        return shift + (shift >= 0);
+    }
+
+#ifdef FRIEND_TEST
+    FRIEND_TEST(FlaggedTest, _Flagged_helper_Test);
+#endif
+
+public:
+    /**
+     * Base class for all Flagged<T, Flag> classes.
+     *
+     * \note flagged types do not have a member variable for the mask used by the type. As such,
+     * they should be be cast to this base class.
+     *
+     * \todo can we replace this base class check with a static member check to remove possibility
+     * of cast?
+     */
+    template<typename Flag>
+    struct base {};
+
+    /**
+     * Type support utility that retrieves the mask of a class (T) if it is a type flagged by
+     * Flag (e.g. Flagged<T, Flag>).
+     *
+     * \note This retrieves 0 if T is a flagged class, that is not flagged by Flag or an equivalent
+     * underlying type.
+     *
+     * Generic implementation for a non-flagged class.
+     */
+    template<
+        typename T, typename Flag,
+        bool=std::is_base_of<base<typename underlying_integral_type<Flag>::type>, T>::value>
+    struct mask_of {
+        using IntFlag = typename underlying_integral_type<Flag>::type;
+        static constexpr IntFlag value = Flag(0); ///< mask of a potentially flagged class
+        static constexpr int shift = 0; ///<left shift of flags in a potentially flagged class
+        static constexpr IntFlag effective_value = IntFlag(0); ///<effective mask of flagged class
+    };
+
+    /**
+     * Type support utility that calculates the minimum (left) shift required to combine a mask
+     * with the mask of an underlying type T also flagged by Flag.
+     *
+     * \note if T is not flagged, not flagged by Flag, or the masks cannot be combined due to
+     * incorrect sharing or the flags not having enough bits, the minimum is -1.
+     *
+     * \param MASK desired mask
+     * \param SHARED_MASK desired shared mask (if this is non-0, T must be an type flagged by
+     *        Flag with a mask that has exactly these bits common with MASK)
+     */
+    template<typename T, typename Flag, Flag MASK, Flag SHARED_MASK>
+    struct min_shift {
+        /// minimum (left) shift required, or -1 if masks cannot be combined
+        static constexpr int value =
+            getShift(MASK, mask_of<T, Flag>::value, SHARED_MASK,
+                     mask_of<T, Flag>::shift, mask_of<T, Flag>::effective_value);
+    };
+
+    /**
+     * Type support utility that calculates whether the flags of T can be combined with MASK.
+     *
+     * \param MASK desired mask
+     * \param SHARED_MASK desired shared mask (if this is non-0, T MUST be an type flagged by
+     *        Flag with a mask that has exactly these bits common with MASK)
+     */
+    template<
+            typename T, typename Flag, Flag MASK,
+            Flag SHARED_MASK=Flag(0),
+            int SHIFT=min_shift<T, Flag, MASK, SHARED_MASK>::value>
+    struct can_combine {
+        using IntFlag = typename underlying_integral_type<Flag>::type;
+        /// true if this mask can be combined with T's existing flag. false otherwise.
+        static constexpr bool value =
+                std::is_base_of<base<IntFlag>, T>::value
+                        && canCombine(MASK, mask_of<T, Flag>::value, SHARED_MASK, SHIFT,
+                                      mask_of<T, Flag>::shift, mask_of<T, Flag>::effective_value);
+    };
+};
+
+/**
+ * Template specialization for the case when T is flagged by Flag or a compatible type.
+ */
+template<typename T, typename Flag>
+struct _Flagged_helper::mask_of<T, Flag, true> {
+    using IntType = typename underlying_integral_type<Flag>::type;
+    static constexpr IntType value = T::sFlagMask;
+    static constexpr int shift = T::sFlagShift;
+    static constexpr IntType effective_value = T::sEffectiveMask;
+};
+
+/**
+ * Main Flagged template that adds flags to an object of another type (in essence, creates a pair)
+ *
+ * Flag must be an integral type (enums are allowed).
+ *
+ * \note We could make SHARED_MASK be a boolean as it must be either 0 or MASK & base's mask, but we
+ * want it to be spelled out for safety.
+ *
+ * \param T type of object wrapped
+ * \param Flag type of flag
+ * \param MASK mask for the bits used in flag (before any shift)
+ * \param SHARED_MASK optional mask to be shared with T (if this is not zero, SHIFT must be 0, and
+ *        it must equal to MASK & T's mask)
+ * \param SHIFT optional left shift for MASK to combine with T's mask (or -1, if masks should not
+ *        be combined.)
+ */
+template<
+        typename T, typename Flag, Flag MASK, Flag SHARED_MASK=(Flag)0,
+        int SHIFT=_Flagged_helper::min_shift<T, Flag, MASK, SHARED_MASK>::value,
+        typename IntFlag=typename underlying_integral_type<Flag>::type,
+        bool=_Flagged_helper::can_combine<T, IntFlag, MASK, SHARED_MASK, SHIFT>::value>
+class Flagged : public _Flagged_helper::base<IntFlag> {
+    static_assert(SHARED_MASK == 0,
+                  "shared mask can only be used with common flag types "
+                  "and must be part of mask and mask of base type");
+    static_assert((_Flagged_helper::topBits<Flag>(SHIFT) & MASK) == 0, "SHIFT overflows MASK");
+
+    static constexpr Flag sFlagMask = MASK;  ///< the mask
+    static constexpr int sFlagShift = SHIFT > 0 ? SHIFT : 0; ///< the left shift applied to flags
+
+    friend struct _Flagged_helper;
+#ifdef FRIEND_TEST
+    static constexpr bool sFlagCombined = false;
+    FRIEND_TEST(FlaggedTest, _Flagged_helper_Test);
+#endif
+
+    T       mValue; ///< wrapped value
+    IntFlag mFlags; ///< flags
+
+protected:
+    /// The effective combined mask used by this class and any wrapped classes if the flags are
+    /// combined.
+    static constexpr IntFlag sEffectiveMask = _Flagged_helper::lshift(MASK, sFlagShift);
+
+    /**
+     * Helper method used by subsequent flagged wrappers to query flags. Returns the
+     * flags for a particular mask and left shift.
+     *
+     * \param mask bitmask to use
+     * \param shift left shifts to use
+     *
+     * \return the requested flags
+     */
+    inline constexpr IntFlag getFlagsHelper(IntFlag mask, int shift) const {
+        return (mFlags >> shift) & mask;
+    }
+
+    /**
+     * Helper method used by subsequent flagged wrappers to apply combined flags. Sets the flags
+     * in the bitmask using a particulare left shift.
+     *
+     * \param mask bitmask to use
+     * \param shift left shifts to use
+     * \param flags flags to update (any flags within the bitmask are updated to their value in this
+     *        argument)
+     */
+    inline void setFlagsHelper(IntFlag mask, int shift, IntFlag flags) {
+        mFlags = Flag((mFlags & ~(mask << shift)) | ((flags & mask) << shift));
+    }
+
+public:
+    /**
+     * Wrapper around base class constructor. These take the flags as their first
+     * argument and pass the rest of the arguments to the base class constructor.
+     *
+     * \param flags initial flags
+     */
+    template<typename ...Args>
+    constexpr Flagged(Flag flags, Args... args)
+        : mValue(std::forward<Args>(args)...),
+          mFlags(Flag(_Flagged_helper::lshift(flags & sFlagMask, sFlagShift))) { }
+
+    /** Gets the wrapped value as const. */
+    inline constexpr const T &get() const { return mValue; }
+
+    /** Gets the wrapped value. */
+    inline T &get() { return mValue; }
+
+    /** Gets the flags. */
+    constexpr Flag flags() const {
+        return Flag(getFlagsHelper(sFlagMask, sFlagShift));
+    }
+
+    /** Sets the flags. */
+    void setFlags(Flag flags) {
+        setFlagsHelper(sFlagMask, sFlagShift, flags);
+    }
+};
+
+/*
+ * TRICKY: we cannot implement the specialization as:
+ *
+ * class Flagged : base<Flag> {
+ *    T value;
+ * };
+ *
+ * Because T also inherits from base<Flag> and this runs into a compiler bug where
+ * sizeof(Flagged) > sizeof(T).
+ *
+ * Instead, we must inherit directly from the wrapped class
+ *
+ */
+#if 0
+template<
+        typename T, typename Flag, Flag MASK, Flag SHARED_MASK, int SHIFT>
+class Flagged<T, Flag, MASK, SHARED_MASK, SHIFT, true> : public _Flagged_helper::base<Flag> {
+private:
+    T mValue;
+};
+#else
+/**
+ * Specialization for the case when T is derived from Flagged<U, Flag> and flags can be combined.
+ */
+template<
+        typename T, typename Flag, Flag MASK, Flag SHARED_MASK, int SHIFT, typename IntFlag>
+class Flagged<T, Flag, MASK, SHARED_MASK, SHIFT, IntFlag, true> : private T {
+    static_assert(is_integral_or_enum<Flag>::value, "flag must be integer or enum");
+
+    static_assert(SHARED_MASK == 0 || SHIFT == 0, "cannot overlap masks when using SHIFT");
+    static_assert((SHARED_MASK & ~MASK) == 0, "shared mask must be part of the mask");
+    static_assert((SHARED_MASK & ~T::sEffectiveMask) == 0,
+                  "shared mask must be part of the base mask");
+    static_assert(SHARED_MASK == 0 || (~SHARED_MASK & (MASK & T::sEffectiveMask)) == 0,
+                  "mask and base mask can only overlap in shared mask");
+
+    static constexpr Flag sFlagMask = MASK;  ///< the mask
+    static constexpr int sFlagShift = SHIFT;  ///< the left shift applied to the flags
+
+#ifdef FRIEND_TEST
+    const static bool sFlagCombined = true;
+    FRIEND_TEST(FlaggedTest, _Flagged_helper_Test);
+#endif
+
+protected:
+    /// The effective combined mask used by this class and any wrapped classes if the flags are
+    /// combined.
+    static constexpr IntFlag sEffectiveMask = Flag((MASK << SHIFT) | T::sEffectiveMask);
+    friend struct _Flagged_helper;
+
+public:
+    /**
+     * Wrapper around base class constructor. These take the flags as their first
+     * argument and pass the rest of the arguments to the base class constructor.
+     *
+     * \param flags initial flags
+     */
+    template<typename ...Args>
+    constexpr Flagged(Flag flags, Args... args)
+        : T(std::forward<Args>(args)...) {
+        // we construct the base class first and apply the flags afterwards as
+        // base class may not have a constructor that takes flags even if it is derived from
+        // Flagged<U, Flag>
+        setFlags(flags);
+    }
+
+    /** Gets the wrapped value as const. */
+    inline constexpr T &get() const { return *this; }
+
+    /** Gets the wrapped value. */
+    inline T &get() { return *this; }
+
+    /** Gets the flags. */
+    Flag constexpr flags() const {
+        return Flag(this->getFlagsHelper(sFlagMask, sFlagShift));
+    }
+
+    /** Sets the flags. */
+    void setFlags(Flag flags) {
+        this->setFlagsHelper(sFlagMask, sFlagShift, flags);
+    }
+};
+#endif
+
+}  // namespace android
+
+#endif  // STAGEFRIGHT_FOUNDATION_FLAGGED_H_
+
diff --git a/include/media/stagefright/foundation/MediaBufferBase.h b/media/libstagefright/include/foundation/MediaBufferBase.h
similarity index 100%
rename from include/media/stagefright/foundation/MediaBufferBase.h
rename to media/libstagefright/include/foundation/MediaBufferBase.h
diff --git a/include/media/stagefright/foundation/Mutexed.h b/media/libstagefright/include/foundation/Mutexed.h
similarity index 100%
rename from include/media/stagefright/foundation/Mutexed.h
rename to media/libstagefright/include/foundation/Mutexed.h
diff --git a/include/media/stagefright/foundation/ParsedMessage.h b/media/libstagefright/include/foundation/ParsedMessage.h
similarity index 100%
rename from include/media/stagefright/foundation/ParsedMessage.h
rename to media/libstagefright/include/foundation/ParsedMessage.h
diff --git a/media/libstagefright/include/foundation/TypeTraits.h b/media/libstagefright/include/foundation/TypeTraits.h
new file mode 100644
index 0000000..1250e9b
--- /dev/null
+++ b/media/libstagefright/include/foundation/TypeTraits.h
@@ -0,0 +1,224 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef STAGEFRIGHT_FOUNDATION_TYPE_TRAITS_H_
+#define STAGEFRIGHT_FOUNDATION_TYPE_TRAITS_H_
+
+#include <type_traits>
+
+namespace android {
+
+/**
+ * std::is_signed, is_unsigned and is_integral does not consider enums even though the standard
+ * considers them integral. Create modified versions of these here. Also create a wrapper around
+ * std::underlying_type that does not require checking if the type is an enum.
+ */
+
+/**
+ * Type support utility class to check if a type is an integral type or an enum.
+ */
+template<typename T>
+struct is_integral_or_enum
+    : std::integral_constant<bool, std::is_integral<T>::value || std::is_enum<T>::value> { };
+
+/**
+ * Type support utility class to get the underlying std::is_integral supported type for a type.
+ * This returns the underlying type for enums, and the same type for types covered by
+ * std::is_integral.
+ *
+ * This is also used as a conditional to return an alternate type if the template param is not
+ * an integral or enum type (as in underlying_integral_type<T, TypeIfNotEnumOrIntegral>::type).
+ */
+template<typename T,
+        typename U=typename std::enable_if<is_integral_or_enum<T>::value>::type,
+        bool=std::is_enum<T>::value,
+        bool=std::is_integral<T>::value>
+struct underlying_integral_type {
+    static_assert(!std::is_enum<T>::value, "T should not be enum here");
+    static_assert(!std::is_integral<T>::value, "T should not be integral here");
+    typedef U type;
+};
+
+/** Specialization for enums. */
+template<typename T, typename U>
+struct underlying_integral_type<T, U, true, false> {
+    static_assert(std::is_enum<T>::value, "T should be enum here");
+    static_assert(!std::is_integral<T>::value, "T should not be integral here");
+    typedef typename std::underlying_type<T>::type type;
+};
+
+/** Specialization for non-enum std-integral types. */
+template<typename T, typename U>
+struct underlying_integral_type<T, U, false, true> {
+    static_assert(!std::is_enum<T>::value, "T should not be enum here");
+    static_assert(std::is_integral<T>::value, "T should be integral here");
+    typedef T type;
+};
+
+/**
+ * Type support utility class to check if the underlying integral type is signed.
+ */
+template<typename T>
+struct is_signed_integral
+    : std::integral_constant<bool, std::is_signed<
+            typename underlying_integral_type<T, unsigned>::type>::value> { };
+
+/**
+ * Type support utility class to check if the underlying integral type is unsigned.
+ */
+template<typename T>
+struct is_unsigned_integral
+    : std::integral_constant<bool, std::is_unsigned<
+            typename underlying_integral_type<T, signed>::type>::value> {
+};
+
+/**
+ * Type support relationship query template.
+ *
+ * If T occurs as one of the types in Us with the same const-volatile qualifications, provides the
+ * member constant |value| equal to true. Otherwise value is false.
+ */
+template<typename T, typename ...Us>
+struct is_one_of;
+
+/// \if 0
+/**
+ * Template specialization when first type matches the searched type.
+ */
+template<typename T, typename ...Us>
+struct is_one_of<T, T, Us...> : std::true_type {};
+
+/**
+ * Template specialization when first type does not match the searched type.
+ */
+template<typename T, typename U, typename ...Us>
+struct is_one_of<T, U, Us...> : is_one_of<T, Us...> {};
+
+/**
+ * Template specialization when there are no types to search.
+ */
+template<typename T>
+struct is_one_of<T> : std::false_type {};
+/// \endif
+
+/**
+ * Type support relationship query template.
+ *
+ * If all types in Us are unique, provides the member constant |value| equal to true.
+ * Otherwise value is false.
+ */
+template<typename ...Us>
+struct are_unique;
+
+/// \if 0
+/**
+ * Template specialization when there are no types.
+ */
+template<>
+struct are_unique<> : std::true_type {};
+
+/**
+ * Template specialization when there is at least one type to check.
+ */
+template<typename T, typename ...Us>
+struct are_unique<T, Us...>
+    : std::integral_constant<bool, are_unique<Us...>::value && !is_one_of<T, Us...>::value> {};
+/// \endif
+
+/// \if 0
+template<size_t Base, typename T, typename ...Us>
+struct _find_first_impl;
+
+/**
+ * Template specialization when there are no types to search.
+ */
+template<size_t Base, typename T>
+struct _find_first_impl<Base, T> : std::integral_constant<size_t, 0> {};
+
+/**
+ * Template specialization when T is the first type in Us.
+ */
+template<size_t Base, typename T, typename ...Us>
+struct _find_first_impl<Base, T, T, Us...> : std::integral_constant<size_t, Base> {};
+
+/**
+ * Template specialization when T is not the first type in Us.
+ */
+template<size_t Base, typename T, typename U, typename ...Us>
+struct _find_first_impl<Base, T, U, Us...>
+    : std::integral_constant<size_t, _find_first_impl<Base + 1, T, Us...>::value> {};
+
+/// \endif
+
+/**
+ * Type support relationship query template.
+ *
+ * If T occurs in Us, index is the 1-based left-most index of T in Us. Otherwise, index is 0.
+ */
+template<typename T, typename ...Us>
+struct find_first {
+    static constexpr size_t index = _find_first_impl<1, T, Us...>::value;
+};
+
+/// \if 0
+/**
+ * Helper class for find_first_convertible_to template.
+ *
+ * Adds a base index.
+ */
+template<size_t Base, typename T, typename ...Us>
+struct _find_first_convertible_to_helper;
+
+/**
+ * Template specialization for when there are more types to consider
+ */
+template<size_t Base, typename T, typename U, typename ...Us>
+struct _find_first_convertible_to_helper<Base, T, U, Us...> {
+    static constexpr size_t index =
+        std::is_convertible<T, U>::value ? Base :
+                _find_first_convertible_to_helper<Base + 1, T, Us...>::index;
+    typedef typename std::conditional<
+        std::is_convertible<T, U>::value, U,
+        typename _find_first_convertible_to_helper<Base + 1, T, Us...>::type>::type type;
+};
+
+/**
+ * Template specialization for when there are no more types to consider
+ */
+template<size_t Base, typename T>
+struct _find_first_convertible_to_helper<Base, T> {
+    static constexpr size_t index = 0;
+    typedef void type;
+};
+
+/// \endif
+
+/**
+ * Type support template that returns the type that T can be implicitly converted into, and its
+ * index, from a list of other types (Us).
+ *
+ * Returns index of 0 and type of void if there are no convertible types.
+ *
+ * \param T type that is converted
+ * \param Us types into which the conversion is considered
+ */
+template<typename T, typename ...Us>
+struct find_first_convertible_to : public _find_first_convertible_to_helper<1, T, Us...> { };
+
+}  // namespace android
+
+#endif  // STAGEFRIGHT_FOUNDATION_TYPE_TRAITS_H_
+
diff --git a/include/media/stagefright/foundation/base64.h b/media/libstagefright/include/foundation/base64.h
similarity index 100%
rename from include/media/stagefright/foundation/base64.h
rename to media/libstagefright/include/foundation/base64.h
diff --git a/include/media/stagefright/foundation/hexdump.h b/media/libstagefright/include/foundation/hexdump.h
similarity index 100%
rename from include/media/stagefright/foundation/hexdump.h
rename to media/libstagefright/include/foundation/hexdump.h
diff --git a/media/libstagefright/matroska/Android.mk b/media/libstagefright/matroska/Android.mk
index b0cbf08..7de5dbe 100644
--- a/media/libstagefright/matroska/Android.mk
+++ b/media/libstagefright/matroska/Android.mk
@@ -10,8 +10,10 @@
         $(TOP)/frameworks/av/media/libstagefright/include \
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
+
+LOCAL_SHARED_LIBRARIES := libmedia
 
 LOCAL_MODULE:= libstagefright_matroska
 
diff --git a/media/libstagefright/matroska/MatroskaExtractor.cpp b/media/libstagefright/matroska/MatroskaExtractor.cpp
index 0f9430e..81179d1 100644
--- a/media/libstagefright/matroska/MatroskaExtractor.cpp
+++ b/media/libstagefright/matroska/MatroskaExtractor.cpp
@@ -40,7 +40,7 @@
 namespace android {
 
 struct DataSourceReader : public mkvparser::IMkvReader {
-    DataSourceReader(const sp<DataSource> &source)
+    explicit DataSourceReader(const sp<DataSource> &source)
         : mSource(source) {
     }
 
@@ -377,6 +377,16 @@
 
     *actualFrameTimeUs = -1ll;
 
+    if (seekTimeUs > INT64_MAX / 1000ll ||
+            seekTimeUs < INT64_MIN / 1000ll ||
+            (mExtractor->mSeekPreRollNs > 0 &&
+                    (seekTimeUs * 1000ll) < INT64_MIN + mExtractor->mSeekPreRollNs) ||
+            (mExtractor->mSeekPreRollNs < 0 &&
+                    (seekTimeUs * 1000ll) > INT64_MAX + mExtractor->mSeekPreRollNs)) {
+        ALOGE("cannot seek to %lld", (long long) seekTimeUs);
+        return;
+    }
+
     const int64_t seekTimeNs = seekTimeUs * 1000ll - mExtractor->mSeekPreRollNs;
 
     mkvparser::Segment* const pSegment = mExtractor->mSegment;
@@ -605,16 +615,27 @@
     int64_t timeUs = mBlockIter.blockTimeUs();
 
     for (int i = 0; i < block->GetFrameCount(); ++i) {
+        MatroskaExtractor::TrackInfo *trackInfo = &mExtractor->mTracks.editItemAt(mTrackIndex);
         const mkvparser::Block::Frame &frame = block->GetFrame(i);
+        size_t len = frame.len;
+        if (SIZE_MAX - len < trackInfo->mHeaderLen) {
+            return ERROR_MALFORMED;
+        }
 
-        MediaBuffer *mbuf = new MediaBuffer(frame.len);
+        len += trackInfo->mHeaderLen;
+        MediaBuffer *mbuf = new MediaBuffer(len);
+        uint8_t *data = static_cast<uint8_t *>(mbuf->data());
+        if (trackInfo->mHeader) {
+            memcpy(data, trackInfo->mHeader, trackInfo->mHeaderLen);
+        }
+
         mbuf->meta_data()->setInt64(kKeyTime, timeUs);
         mbuf->meta_data()->setInt32(kKeyIsSyncFrame, block->IsKey());
 
-        status_t err = frame.Read(mExtractor->mReader, static_cast<uint8_t *>(mbuf->data()));
+        status_t err = frame.Read(mExtractor->mReader, data + trackInfo->mHeaderLen);
         if (err == OK
                 && mExtractor->mIsWebm
-                && mExtractor->mTracks.itemAt(mTrackIndex).mEncrypted) {
+                && trackInfo->mEncrypted) {
             err = setWebmBlockCryptoInfo(mbuf);
         }
 
@@ -1164,6 +1185,42 @@
     }
 }
 
+status_t MatroskaExtractor::initTrackInfo(
+        const mkvparser::Track *track, const sp<MetaData> &meta, TrackInfo *trackInfo) {
+    trackInfo->mTrackNum = track->GetNumber();
+    trackInfo->mMeta = meta;
+    trackInfo->mExtractor = this;
+    trackInfo->mEncrypted = false;
+    trackInfo->mHeader = NULL;
+    trackInfo->mHeaderLen = 0;
+
+    for(size_t i = 0; i < track->GetContentEncodingCount(); i++) {
+        const mkvparser::ContentEncoding *encoding = track->GetContentEncodingByIndex(i);
+        for(size_t j = 0; j < encoding->GetEncryptionCount(); j++) {
+            const mkvparser::ContentEncoding::ContentEncryption *encryption;
+            encryption = encoding->GetEncryptionByIndex(j);
+            trackInfo->mMeta->setData(kKeyCryptoKey, 0, encryption->key_id, encryption->key_id_len);
+            trackInfo->mEncrypted = true;
+            break;
+        }
+
+        for(size_t j = 0; j < encoding->GetCompressionCount(); j++) {
+            const mkvparser::ContentEncoding::ContentCompression *compression;
+            compression = encoding->GetCompressionByIndex(j);
+            ALOGV("compression algo %llu settings_len %lld",
+                compression->algo, compression->settings_len);
+            if (compression->algo == 3
+                    && compression->settings
+                    && compression->settings_len > 0) {
+                trackInfo->mHeader = compression->settings;
+                trackInfo->mHeaderLen = compression->settings_len;
+            }
+        }
+    }
+
+    return OK;
+}
+
 void MatroskaExtractor::addTracks() {
     const mkvparser::Tracks *tracks = mSegment->GetTracks();
 
@@ -1231,8 +1288,51 @@
                     continue;
                 }
 
-                meta->setInt32(kKeyWidth, vtrack->GetWidth());
-                meta->setInt32(kKeyHeight, vtrack->GetHeight());
+                const long long width = vtrack->GetWidth();
+                const long long height = vtrack->GetHeight();
+                if (width <= 0 || width > INT32_MAX) {
+                    ALOGW("track width exceeds int32_t, %lld", width);
+                    continue;
+                }
+                if (height <= 0 || height > INT32_MAX) {
+                    ALOGW("track height exceeds int32_t, %lld", height);
+                    continue;
+                }
+                meta->setInt32(kKeyWidth, (int32_t)width);
+                meta->setInt32(kKeyHeight, (int32_t)height);
+
+                // setting display width/height is optional
+                const long long displayUnit = vtrack->GetDisplayUnit();
+                const long long displayWidth = vtrack->GetDisplayWidth();
+                const long long displayHeight = vtrack->GetDisplayHeight();
+                if (displayWidth > 0 && displayWidth <= INT32_MAX
+                        && displayHeight > 0 && displayHeight <= INT32_MAX) {
+                    switch (displayUnit) {
+                    case 0: // pixels
+                        meta->setInt32(kKeyDisplayWidth, (int32_t)displayWidth);
+                        meta->setInt32(kKeyDisplayHeight, (int32_t)displayHeight);
+                        break;
+                    case 1: // centimeters
+                    case 2: // inches
+                    case 3: // aspect ratio
+                    {
+                        // Physical layout size is treated the same as aspect ratio.
+                        // Note: displayWidth and displayHeight are never zero as they are
+                        // checked in the if above.
+                        const long long computedWidth =
+                                std::max(width, height * displayWidth / displayHeight);
+                        const long long computedHeight =
+                                std::max(height, width * displayHeight / displayWidth);
+                        if (computedWidth <= INT32_MAX && computedHeight <= INT32_MAX) {
+                            meta->setInt32(kKeyDisplayWidth, (int32_t)computedWidth);
+                            meta->setInt32(kKeyDisplayHeight, (int32_t)computedHeight);
+                        }
+                        break;
+                    }
+                    default: // unknown display units, perhaps future version of spec.
+                        break;
+                    }
+                }
 
                 getColorInformation(vtrack, meta);
 
@@ -1288,21 +1388,7 @@
         mTracks.push();
         size_t n = mTracks.size() - 1;
         TrackInfo *trackInfo = &mTracks.editItemAt(n);
-        trackInfo->mTrackNum = track->GetNumber();
-        trackInfo->mMeta = meta;
-        trackInfo->mExtractor = this;
-
-        trackInfo->mEncrypted = false;
-        for(size_t i = 0; i < track->GetContentEncodingCount() && !trackInfo->mEncrypted; i++) {
-            const mkvparser::ContentEncoding *encoding = track->GetContentEncodingByIndex(i);
-            for(size_t j = 0; j < encoding->GetEncryptionCount(); j++) {
-                const mkvparser::ContentEncoding::ContentEncryption *encryption;
-                encryption = encoding->GetEncryptionByIndex(j);
-                meta->setData(kKeyCryptoKey, 0, encryption->key_id, encryption->key_id_len);
-                trackInfo->mEncrypted = true;
-                break;
-            }
-        }
+        initTrackInfo(track, meta, trackInfo);
 
         if (!strcmp("V_MPEG4/ISO/AVC", codecID) && codecPrivateSize == 0) {
             // Attempt to recover from AVC track without codec private data
diff --git a/media/libstagefright/matroska/MatroskaExtractor.h b/media/libstagefright/matroska/MatroskaExtractor.h
index 665e68e..19775ce 100644
--- a/media/libstagefright/matroska/MatroskaExtractor.h
+++ b/media/libstagefright/matroska/MatroskaExtractor.h
@@ -34,7 +34,7 @@
 struct MatroskaSource;
 
 struct MatroskaExtractor : public MediaExtractor {
-    MatroskaExtractor(const sp<DataSource> &source);
+    explicit MatroskaExtractor(const sp<DataSource> &source);
 
     virtual size_t countTracks();
 
@@ -63,6 +63,12 @@
         const MatroskaExtractor *mExtractor;
         Vector<const mkvparser::CuePoint*> mCuePoints;
 
+        // mHeader points to memory managed by mkvparser;
+        // mHeader would be deleted when mSegment is deleted
+        // in ~MatroskaExtractor.
+        unsigned char *mHeader;
+        size_t mHeaderLen;
+
         const mkvparser::Track* getTrack() const;
         const mkvparser::CuePoint::TrackPosition *find(long long timeNs) const;
     };
@@ -79,6 +85,7 @@
     int64_t mSeekPreRollNs;
 
     status_t synthesizeAVCC(TrackInfo *trackInfo, size_t index);
+    status_t initTrackInfo(const mkvparser::Track *track, const sp<MetaData> &meta, TrackInfo *trackInfo);
     void addTracks();
     void findThumbnails();
     void getColorInformation(const mkvparser::VideoTrack *vtrack, sp<MetaData> &meta);
diff --git a/media/libstagefright/mpeg2ts/ATSParser.cpp b/media/libstagefright/mpeg2ts/ATSParser.cpp
index 844479e..31edb21 100644
--- a/media/libstagefright/mpeg2ts/ATSParser.cpp
+++ b/media/libstagefright/mpeg2ts/ATSParser.cpp
@@ -17,13 +17,14 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "ATSParser"
 #include <utils/Log.h>
-
 #include "ATSParser.h"
-
 #include "AnotherPacketSource.h"
+#include "CasManager.h"
 #include "ESQueue.h"
 #include "include/avc_utils.h"
 
+#include <android/media/IDescrambler.h>
+#include <binder/MemoryDealer.h>
 #include <media/stagefright/foundation/ABitReader.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -40,6 +41,8 @@
 #include <inttypes.h>
 
 namespace android {
+using binder::Status;
+using MediaDescrambler::DescrambleInfo;
 
 // I want the expression "y" evaluated even if verbose logging is off.
 #define MY_LOGV(x, y) \
@@ -60,6 +63,8 @@
     bool parsePID(
             unsigned pid, unsigned continuity_counter,
             unsigned payload_unit_start_indicator,
+            unsigned transport_scrambling_control,
+            unsigned random_access_indicator,
             ABitReader *br, status_t *err, SyncEvent *event);
 
     void signalDiscontinuity(
@@ -90,10 +95,23 @@
         return mParser->mFlags;
     }
 
+    sp<CasManager> casManager() const {
+        return mParser->mCasManager;
+    }
+
+    uint64_t firstPTS() const {
+        return mFirstPTS;
+    }
+
+    void updateCasSessions();
+
+    void signalNewSampleAesKey(const sp<AMessage> &keyItem);
+
 private:
     struct StreamInfo {
         unsigned mType;
         unsigned mPID;
+        int32_t mCASystemId;
     };
 
     ATSParser *mParser;
@@ -103,9 +121,12 @@
     bool mFirstPTSValid;
     uint64_t mFirstPTS;
     int64_t mLastRecoveredPTS;
+    sp<AMessage> mSampleAesKeyItem;
 
     status_t parseProgramMap(ABitReader *br);
     int64_t recoverPTS(uint64_t PTS_33bit);
+    bool findCADescriptor(
+            ABitReader *br, unsigned infoLength, CADescriptor *caDescriptor);
     bool switchPIDs(const Vector<StreamInfo> &infos);
 
     DISALLOW_EVIL_CONSTRUCTORS(Program);
@@ -115,18 +136,26 @@
     Stream(Program *program,
            unsigned elementaryPID,
            unsigned streamType,
-           unsigned PCR_PID);
+           unsigned PCR_PID,
+           int32_t CA_system_ID);
 
     unsigned type() const { return mStreamType; }
     unsigned pid() const { return mElementaryPID; }
     void setPID(unsigned pid) { mElementaryPID = pid; }
 
+    void setCasInfo(
+            int32_t systemId,
+            const sp<IDescrambler> &descrambler,
+            const std::vector<uint8_t> &sessionId);
+
     // Parse the payload and set event when PES with a sync frame is detected.
     // This method knows when a PES starts; so record mPesStartOffsets in that
     // case.
     status_t parse(
             unsigned continuity_counter,
             unsigned payload_unit_start_indicator,
+            unsigned transport_scrambling_control,
+            unsigned random_access_indicator,
             ABitReader *br,
             SyncEvent *event);
 
@@ -135,16 +164,24 @@
 
     void signalEOS(status_t finalResult);
 
+    SourceType getSourceType();
     sp<MediaSource> getSource(SourceType type);
 
     bool isAudio() const;
     bool isVideo() const;
     bool isMeta() const;
 
+    void signalNewSampleAesKey(const sp<AMessage> &keyItem);
+
 protected:
     virtual ~Stream();
 
 private:
+    struct SubSampleInfo {
+        size_t subSampleSize;
+        unsigned transport_scrambling_mode;
+        unsigned random_access_indicator;
+    };
     Program *mProgram;
     unsigned mElementaryPID;
     unsigned mStreamType;
@@ -161,10 +198,28 @@
 
     ElementaryStreamQueue *mQueue;
 
+    bool mScrambled;
+    bool mSampleEncrypted;
+    sp<AMessage> mSampleAesKeyItem;
+    sp<IMemory> mMem;
+    sp<MemoryDealer> mDealer;
+    sp<ABuffer> mDescrambledBuffer;
+    List<SubSampleInfo> mSubSamples;
+    sp<IDescrambler> mDescrambler;
+
     // Flush accumulated payload if necessary --- i.e. at EOS or at the start of
     // another payload. event is set if the flushed payload is PES with a sync
     // frame.
     status_t flush(SyncEvent *event);
+
+    // Flush accumulated payload for scrambled streams if necessary --- i.e. at
+    // EOS or at the start of another payload. event is set if the flushed
+    // payload is PES with a sync frame.
+    status_t flushScrambled(SyncEvent *event);
+
+    // Check if a PES packet is scrambled at PES level.
+    uint32_t getPesScramblingControl(ABitReader *br, int32_t *pesOffset);
+
     // Strip and parse PES headers and pass remaining payload into onPayload
     // with parsed metadata. event is set if the PES contains a sync frame.
     status_t parsePES(ABitReader *br, SyncEvent *event);
@@ -174,7 +229,13 @@
     // and timestamp of the packet.
     void onPayloadData(
             unsigned PTS_DTS_flags, uint64_t PTS, uint64_t DTS,
-            const uint8_t *data, size_t size, SyncEvent *event);
+            unsigned PES_scrambling_control,
+            const uint8_t *data, size_t size,
+            int32_t payloadOffset, SyncEvent *event);
+
+    // Ensure internal buffers can hold specified size, and will re-allocate
+    // as needed.
+    void ensureBufferCapacity(size_t size);
 
     DISALLOW_EVIL_CONSTRUCTORS(Stream);
 };
@@ -208,11 +269,12 @@
     : mHasReturnedData(false), mOffset(offset), mTimeUs(0) {}
 
 void ATSParser::SyncEvent::init(off64_t offset, const sp<MediaSource> &source,
-        int64_t timeUs) {
+        int64_t timeUs, SourceType type) {
     mHasReturnedData = true;
     mOffset = offset;
     mMediaSource = source;
     mTimeUs = timeUs;
+    mType = type;
 }
 
 void ATSParser::SyncEvent::reset() {
@@ -248,6 +310,8 @@
 bool ATSParser::Program::parsePID(
         unsigned pid, unsigned continuity_counter,
         unsigned payload_unit_start_indicator,
+        unsigned transport_scrambling_control,
+        unsigned random_access_indicator,
         ABitReader *br, status_t *err, SyncEvent *event) {
     *err = OK;
 
@@ -257,7 +321,11 @@
     }
 
     *err = mStreams.editValueAt(index)->parse(
-            continuity_counter, payload_unit_start_indicator, br, event);
+            continuity_counter,
+            payload_unit_start_indicator,
+            transport_scrambling_control,
+            random_access_indicator,
+            br, event);
 
     return true;
 }
@@ -353,6 +421,38 @@
     return success;
 }
 
+bool ATSParser::Program::findCADescriptor(
+        ABitReader *br, unsigned infoLength,
+        ATSParser::CADescriptor *caDescriptor) {
+    bool found = false;
+    while (infoLength > 2) {
+        unsigned descriptor_tag = br->getBits(8);
+        ALOGV("      tag = 0x%02x", descriptor_tag);
+
+        unsigned descriptor_length = br->getBits(8);
+        ALOGV("      len = %u", descriptor_length);
+
+        infoLength -= 2;
+        if (descriptor_length > infoLength) {
+            break;
+        }
+        if (descriptor_tag == 9 && descriptor_length >= 4) {
+            found = true;
+            caDescriptor->mSystemID = br->getBits(16);
+            caDescriptor->mPID = br->getBits(16) & 0x1fff;
+            infoLength -= 4;
+            caDescriptor->mPrivateData.assign(
+                    br->data(), br->data() + descriptor_length - 4);
+            break;
+        } else {
+            infoLength -= descriptor_length;
+            br->skipBits(descriptor_length * 8);
+        }
+    }
+    br->skipBits(infoLength * 8);
+    return found;
+}
+
 status_t ATSParser::Program::parseProgramMap(ABitReader *br) {
     unsigned table_id = br->getBits(8);
     ALOGV("  table_id = %u", table_id);
@@ -389,7 +489,13 @@
     unsigned program_info_length = br->getBits(12);
     ALOGV("  program_info_length = %u", program_info_length);
 
-    br->skipBits(program_info_length * 8);  // skip descriptors
+    // descriptors
+    CADescriptor programCA;
+    bool hasProgramCA = findCADescriptor(br, program_info_length, &programCA);
+    if (hasProgramCA && !mParser->mCasManager->addProgram(
+            mProgramNumber, programCA)) {
+        return ERROR_MALFORMED;
+    }
 
     Vector<StreamInfo> infos;
 
@@ -413,28 +519,17 @@
         unsigned ES_info_length = br->getBits(12);
         ALOGV("    ES_info_length = %u", ES_info_length);
 
-#if 0
-        br->skipBits(ES_info_length * 8);  // skip descriptors
-#else
-        unsigned info_bytes_remaining = ES_info_length;
-        while (info_bytes_remaining >= 2) {
-            MY_LOGV("      tag = 0x%02x", br->getBits(8));
-
-            unsigned descLength = br->getBits(8);
-            ALOGV("      len = %u", descLength);
-
-            if (info_bytes_remaining < descLength) {
-                return ERROR_MALFORMED;
-            }
-            br->skipBits(descLength * 8);
-
-            info_bytes_remaining -= descLength + 2;
+        CADescriptor streamCA;
+        bool hasStreamCA = findCADescriptor(br, ES_info_length, &streamCA);
+        if (hasStreamCA && !mParser->mCasManager->addStream(
+                mProgramNumber, elementaryPID, streamCA)) {
+            return ERROR_MALFORMED;
         }
-#endif
-
         StreamInfo info;
         info.mType = streamType;
         info.mPID = elementaryPID;
+        info.mCASystemId = hasProgramCA ? programCA.mSystemID :
+                           hasStreamCA ? streamCA.mSystemID  : -1;
         infos.push(info);
 
         infoBytesRemaining -= 5 + ES_info_length;
@@ -484,19 +579,33 @@
         }
     }
 
+    bool isAddingScrambledStream = false;
     for (size_t i = 0; i < infos.size(); ++i) {
         StreamInfo &info = infos.editItemAt(i);
 
+        if (mParser->mCasManager->isCAPid(info.mPID)) {
+            // skip CA streams (EMM/ECM)
+            continue;
+        }
         ssize_t index = mStreams.indexOfKey(info.mPID);
 
         if (index < 0) {
             sp<Stream> stream = new Stream(
-                    this, info.mPID, info.mType, PCR_PID);
+                    this, info.mPID, info.mType, PCR_PID, info.mCASystemId);
 
+            if (mSampleAesKeyItem != NULL) {
+                stream->signalNewSampleAesKey(mSampleAesKeyItem);
+            }
+
+            isAddingScrambledStream |= info.mCASystemId >= 0;
             mStreams.add(info.mPID, stream);
         }
     }
 
+    if (isAddingScrambledStream) {
+        ALOGI("Receiving scrambled streams without descrambler!");
+        return ERROR_DRM_DECRYPT_UNIT_NOT_INITIALIZED;
+    }
     return OK;
 }
 
@@ -580,13 +689,28 @@
     return timeUs;
 }
 
+void ATSParser::Program::updateCasSessions() {
+    for (size_t i = 0; i < mStreams.size(); ++i) {
+        sp<Stream> &stream = mStreams.editValueAt(i);
+        sp<IDescrambler> descrambler;
+        std::vector<uint8_t> sessionId;
+        int32_t systemId;
+        if (mParser->mCasManager->getCasInfo(mProgramNumber, stream->pid(),
+                &systemId, &descrambler, &sessionId)) {
+            stream->setCasInfo(systemId, descrambler, sessionId);
+        }
+    }
+}
+
 ////////////////////////////////////////////////////////////////////////////////
+static const size_t kInitialStreamBufferSize = 192 * 1024;
 
 ATSParser::Stream::Stream(
         Program *program,
         unsigned elementaryPID,
         unsigned streamType,
-        unsigned PCR_PID)
+        unsigned PCR_PID,
+        int32_t CA_system_ID)
     : mProgram(program),
       mElementaryPID(elementaryPID),
       mStreamType(streamType),
@@ -595,54 +719,86 @@
       mPayloadStarted(false),
       mEOSReached(false),
       mPrevPTS(0),
-      mQueue(NULL) {
+      mQueue(NULL),
+      mScrambled(CA_system_ID >= 0) {
+
+    mSampleEncrypted =
+            mStreamType == STREAMTYPE_H264_ENCRYPTED ||
+            mStreamType == STREAMTYPE_AAC_ENCRYPTED  ||
+            mStreamType == STREAMTYPE_AC3_ENCRYPTED;
+
+    ALOGV("new stream PID 0x%02x, type 0x%02x, scrambled %d, SampleEncrypted: %d",
+            elementaryPID, streamType, mScrambled, mSampleEncrypted);
+
+    uint32_t flags =
+            (isVideo() && mScrambled) ? ElementaryStreamQueue::kFlag_ScrambledData :
+            (mSampleEncrypted) ? ElementaryStreamQueue::kFlag_SampleEncryptedData :
+            0;
+
+    ElementaryStreamQueue::Mode mode = ElementaryStreamQueue::INVALID;
+
     switch (mStreamType) {
         case STREAMTYPE_H264:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::H264,
-                    (mProgram->parserFlags() & ALIGNED_VIDEO_DATA)
-                        ? ElementaryStreamQueue::kFlag_AlignedData : 0);
+        case STREAMTYPE_H264_ENCRYPTED:
+            mode = ElementaryStreamQueue::H264;
+            flags |= (mProgram->parserFlags() & ALIGNED_VIDEO_DATA) ?
+                    ElementaryStreamQueue::kFlag_AlignedData : 0;
             break;
+
         case STREAMTYPE_MPEG2_AUDIO_ADTS:
-            mQueue = new ElementaryStreamQueue(ElementaryStreamQueue::AAC);
+        case STREAMTYPE_AAC_ENCRYPTED:
+            mode = ElementaryStreamQueue::AAC;
             break;
+
         case STREAMTYPE_MPEG1_AUDIO:
         case STREAMTYPE_MPEG2_AUDIO:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::MPEG_AUDIO);
+            mode = ElementaryStreamQueue::MPEG_AUDIO;
             break;
 
         case STREAMTYPE_MPEG1_VIDEO:
         case STREAMTYPE_MPEG2_VIDEO:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::MPEG_VIDEO);
+            mode = ElementaryStreamQueue::MPEG_VIDEO;
             break;
 
         case STREAMTYPE_MPEG4_VIDEO:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::MPEG4_VIDEO);
+            mode = ElementaryStreamQueue::MPEG4_VIDEO;
             break;
 
         case STREAMTYPE_LPCM_AC3:
         case STREAMTYPE_AC3:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::AC3);
+        case STREAMTYPE_AC3_ENCRYPTED:
+            mode = ElementaryStreamQueue::AC3;
             break;
 
         case STREAMTYPE_METADATA:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::METADATA);
+            mode = ElementaryStreamQueue::METADATA;
             break;
 
         default:
-            break;
+            ALOGE("stream PID 0x%02x has invalid stream type 0x%02x",
+                    elementaryPID, streamType);
+            return;
     }
 
-    ALOGV("new stream PID 0x%02x, type 0x%02x", elementaryPID, streamType);
+    mQueue = new ElementaryStreamQueue(mode, flags);
 
     if (mQueue != NULL) {
-        mBuffer = new ABuffer(192 * 1024);
-        mBuffer->setRange(0, 0);
+        if (mSampleAesKeyItem != NULL) {
+            mQueue->signalNewSampleAesKey(mSampleAesKeyItem);
+        }
+
+        ensureBufferCapacity(kInitialStreamBufferSize);
+
+        if (mScrambled && (isAudio() || isVideo())) {
+            // Set initial format to scrambled
+            sp<MetaData> meta = new MetaData();
+            meta->setCString(kKeyMIMEType,
+                    isAudio() ? MEDIA_MIMETYPE_AUDIO_SCRAMBLED
+                              : MEDIA_MIMETYPE_VIDEO_SCRAMBLED);
+            // for MediaExtractor.CasInfo
+            meta->setInt32(kKeyCASystemID, CA_system_ID);
+            mSource = new AnotherPacketSource(meta);
+        }
     }
 }
 
@@ -651,10 +807,57 @@
     mQueue = NULL;
 }
 
+void ATSParser::Stream::ensureBufferCapacity(size_t neededSize) {
+    if (mBuffer != NULL && mBuffer->capacity() >= neededSize) {
+        return;
+    }
+
+    ALOGV("ensureBufferCapacity: current size %zu, new size %zu, scrambled %d",
+            mBuffer == NULL ? 0 : mBuffer->capacity(), neededSize, mScrambled);
+
+    sp<ABuffer> newBuffer, newScrambledBuffer;
+    sp<IMemory> newMem;
+    sp<MemoryDealer> newDealer;
+    if (mScrambled) {
+        size_t alignment = MemoryDealer::getAllocationAlignment();
+        neededSize = (neededSize + (alignment - 1)) & ~(alignment - 1);
+        // Align to multiples of 64K.
+        neededSize = (neededSize + 65535) & ~65535;
+        newDealer = new MemoryDealer(neededSize, "ATSParser");
+        newMem = newDealer->allocate(neededSize);
+        newScrambledBuffer = new ABuffer(newMem->pointer(), newMem->size());
+
+        if (mDescrambledBuffer != NULL) {
+            memcpy(newScrambledBuffer->data(),
+                    mDescrambledBuffer->data(), mDescrambledBuffer->size());
+            newScrambledBuffer->setRange(0, mDescrambledBuffer->size());
+        } else {
+            newScrambledBuffer->setRange(0, 0);
+        }
+        mMem = newMem;
+        mDealer = newDealer;
+        mDescrambledBuffer = newScrambledBuffer;
+    } else {
+        // Align to multiples of 64K.
+        neededSize = (neededSize + 65535) & ~65535;
+    }
+
+    newBuffer = new ABuffer(neededSize);
+    if (mBuffer != NULL) {
+        memcpy(newBuffer->data(), mBuffer->data(), mBuffer->size());
+        newBuffer->setRange(0, mBuffer->size());
+    } else {
+        newBuffer->setRange(0, 0);
+    }
+    mBuffer = newBuffer;
+}
+
 status_t ATSParser::Stream::parse(
         unsigned continuity_counter,
-        unsigned payload_unit_start_indicator, ABitReader *br,
-        SyncEvent *event) {
+        unsigned payload_unit_start_indicator,
+        unsigned transport_scrambling_control,
+        unsigned random_access_indicator,
+        ABitReader *br, SyncEvent *event) {
     if (mQueue == NULL) {
         return OK;
     }
@@ -666,6 +869,7 @@
         mPayloadStarted = false;
         mPesStartOffsets.clear();
         mBuffer->setRange(0, 0);
+        mSubSamples.clear();
         mExpectedContinuityCounter = -1;
 
 #if 0
@@ -719,27 +923,23 @@
     }
 
     size_t neededSize = mBuffer->size() + payloadSizeBits / 8;
-    if (mBuffer->capacity() < neededSize) {
-        // Increment in multiples of 64K.
-        neededSize = (neededSize + 65535) & ~65535;
-
-        ALOGI("resizing buffer to %zu bytes", neededSize);
-
-        sp<ABuffer> newBuffer = new ABuffer(neededSize);
-        memcpy(newBuffer->data(), mBuffer->data(), mBuffer->size());
-        newBuffer->setRange(0, mBuffer->size());
-        mBuffer = newBuffer;
-    }
+    ensureBufferCapacity(neededSize);
 
     memcpy(mBuffer->data() + mBuffer->size(), br->data(), payloadSizeBits / 8);
     mBuffer->setRange(0, mBuffer->size() + payloadSizeBits / 8);
 
+    if (mScrambled) {
+        mSubSamples.push_back({payloadSizeBits / 8,
+                 transport_scrambling_control, random_access_indicator});
+    }
+
     return OK;
 }
 
 bool ATSParser::Stream::isVideo() const {
     switch (mStreamType) {
         case STREAMTYPE_H264:
+        case STREAMTYPE_H264_ENCRYPTED:
         case STREAMTYPE_MPEG1_VIDEO:
         case STREAMTYPE_MPEG2_VIDEO:
         case STREAMTYPE_MPEG4_VIDEO:
@@ -757,6 +957,8 @@
         case STREAMTYPE_MPEG2_AUDIO_ADTS:
         case STREAMTYPE_LPCM_AC3:
         case STREAMTYPE_AC3:
+        case STREAMTYPE_AAC_ENCRYPTED:
+        case STREAMTYPE_AC3_ENCRYPTED:
             return true;
 
         default:
@@ -783,6 +985,7 @@
     mPesStartOffsets.clear();
     mEOSReached = false;
     mBuffer->setRange(0, 0);
+    mSubSamples.clear();
 
     bool clearFormat = false;
     if (isAudio()) {
@@ -811,7 +1014,15 @@
     }
 
     if (mSource != NULL) {
-        mSource->queueDiscontinuity(type, extra, true);
+        sp<MetaData> meta = mSource->getFormat();
+        const char* mime;
+        if (clearFormat && meta != NULL && meta->findCString(kKeyMIMEType, &mime)
+                && (!strncasecmp(mime, MEDIA_MIMETYPE_AUDIO_SCRAMBLED, 15)
+                 || !strncasecmp(mime, MEDIA_MIMETYPE_VIDEO_SCRAMBLED, 15))){
+            mSource->clear();
+        } else {
+            mSource->queueDiscontinuity(type, extra, true);
+        }
     }
 }
 
@@ -824,6 +1035,8 @@
 }
 
 status_t ATSParser::Stream::parsePES(ABitReader *br, SyncEvent *event) {
+    const uint8_t *basePtr = br->data();
+
     unsigned packet_startcode_prefix = br->getBits(24);
 
     ALOGV("packet_startcode_prefix = 0x%08x", packet_startcode_prefix);
@@ -853,7 +1066,9 @@
             return ERROR_MALFORMED;
         }
 
-        MY_LOGV("PES_scrambling_control = %u", br->getBits(2));
+        unsigned PES_scrambling_control = br->getBits(2);
+        ALOGV("PES_scrambling_control = %u", PES_scrambling_control);
+
         MY_LOGV("PES_priority = %u", br->getBits(1));
         MY_LOGV("data_alignment_indicator = %u", br->getBits(1));
         MY_LOGV("copyright = %u", br->getBits(1));
@@ -986,6 +1201,7 @@
         br->skipBits(optional_bytes_remaining * 8);
 
         // ES data follows.
+        int32_t pesOffset = br->data() - basePtr;
 
         if (PES_packet_length != 0) {
             if (PES_packet_length < PES_header_data_length + 3) {
@@ -1003,21 +1219,26 @@
                 return ERROR_MALFORMED;
             }
 
+            ALOGV("There's %u bytes of payload, PES_packet_length=%u, offset=%d",
+                    dataLength, PES_packet_length, pesOffset);
+
             onPayloadData(
-                    PTS_DTS_flags, PTS, DTS, br->data(), dataLength, event);
+                    PTS_DTS_flags, PTS, DTS, PES_scrambling_control,
+                    br->data(), dataLength, pesOffset, event);
 
             br->skipBits(dataLength * 8);
         } else {
             onPayloadData(
-                    PTS_DTS_flags, PTS, DTS,
-                    br->data(), br->numBitsLeft() / 8, event);
+                    PTS_DTS_flags, PTS, DTS, PES_scrambling_control,
+                    br->data(), br->numBitsLeft() / 8, pesOffset, event);
 
             size_t payloadSizeBits = br->numBitsLeft();
             if (payloadSizeBits % 8 != 0u) {
                 return ERROR_MALFORMED;
             }
 
-            ALOGV("There's %zu bytes of payload.", payloadSizeBits / 8);
+            ALOGV("There's %zu bytes of payload, offset=%d",
+                    payloadSizeBits / 8, pesOffset);
         }
     } else if (stream_id == 0xbe) {  // padding_stream
         if (PES_packet_length == 0u) {
@@ -1034,6 +1255,200 @@
     return OK;
 }
 
+uint32_t ATSParser::Stream::getPesScramblingControl(
+        ABitReader *br, int32_t *pesOffset) {
+    unsigned packet_startcode_prefix = br->getBits(24);
+
+    ALOGV("packet_startcode_prefix = 0x%08x", packet_startcode_prefix);
+
+    if (packet_startcode_prefix != 1) {
+        ALOGV("unit does not start with startcode.");
+        return 0;
+    }
+
+    if (br->numBitsLeft() < 48) {
+        return 0;
+    }
+
+    unsigned stream_id = br->getBits(8);
+    ALOGV("stream_id = 0x%02x", stream_id);
+
+    br->skipBits(16); // PES_packet_length
+
+    if (stream_id != 0xbc  // program_stream_map
+            && stream_id != 0xbe  // padding_stream
+            && stream_id != 0xbf  // private_stream_2
+            && stream_id != 0xf0  // ECM
+            && stream_id != 0xf1  // EMM
+            && stream_id != 0xff  // program_stream_directory
+            && stream_id != 0xf2  // DSMCC
+            && stream_id != 0xf8) {  // H.222.1 type E
+        if (br->getBits(2) != 2u) {
+            return 0;
+        }
+
+        unsigned PES_scrambling_control = br->getBits(2);
+        ALOGV("PES_scrambling_control = %u", PES_scrambling_control);
+
+        if (PES_scrambling_control == 0) {
+            return 0;
+        }
+
+        br->skipBits(12); // don't care
+
+        unsigned PES_header_data_length = br->getBits(8);
+        ALOGV("PES_header_data_length = %u", PES_header_data_length);
+
+        if (PES_header_data_length * 8 > br->numBitsLeft()) {
+            return 0;
+        }
+
+        *pesOffset = 9 + PES_header_data_length;
+        ALOGD("found PES_scrambling_control=%d, PES offset=%d",
+                PES_scrambling_control, *pesOffset);
+        return PES_scrambling_control;
+    }
+
+    return 0;
+}
+
+status_t ATSParser::Stream::flushScrambled(SyncEvent *event) {
+    if (mDescrambler == NULL) {
+        ALOGE("received scrambled packets without descrambler!");
+        return UNKNOWN_ERROR;
+    }
+
+    if (mDescrambledBuffer == NULL || mMem == NULL) {
+        ALOGE("received scrambled packets without shared memory!");
+
+        return UNKNOWN_ERROR;
+    }
+
+    int32_t pesOffset = 0;
+    int32_t descrambleSubSamples = 0, descrambleBytes = 0;
+    uint32_t tsScramblingControl = 0, pesScramblingControl = 0;
+
+    // First, go over subsamples to find TS-level scrambling key id, and
+    // calculate how many subsample we need to descramble (assuming we don't
+    // have PES-level scrambling).
+    for (auto it = mSubSamples.begin(); it != mSubSamples.end(); it++) {
+        if (it->transport_scrambling_mode != 0) {
+            // TODO: handle keyId change, use the first non-zero keyId for now.
+            if (tsScramblingControl == 0) {
+                tsScramblingControl = it->transport_scrambling_mode;
+            }
+        }
+        if (tsScramblingControl == 0 || descrambleSubSamples == 0
+                || !mQueue->isScrambled()) {
+            descrambleSubSamples++;
+            descrambleBytes += it->subSampleSize;
+        }
+    }
+    // If not scrambled at TS-level, check PES-level scrambling
+    if (tsScramblingControl == 0) {
+        ABitReader br(mBuffer->data(), mBuffer->size());
+        pesScramblingControl = getPesScramblingControl(&br, &pesOffset);
+        // If not scrambled at PES-level either, or scrambled at PES-level but
+        // requires output to remain scrambled, we don't need to descramble
+        // anything.
+        if (pesScramblingControl == 0 || mQueue->isScrambled()) {
+            descrambleSubSamples = 0;
+            descrambleBytes = 0;
+        }
+    }
+
+    uint32_t sctrl = tsScramblingControl != 0 ?
+            tsScramblingControl : pesScramblingControl;
+
+    // Perform the 1st pass descrambling if needed
+    if (descrambleBytes > 0) {
+        memcpy(mDescrambledBuffer->data(), mBuffer->data(), descrambleBytes);
+        mDescrambledBuffer->setRange(0, descrambleBytes);
+
+        sp<ABuffer> subSamples = new ABuffer(
+                sizeof(DescramblerPlugin::SubSample) * descrambleSubSamples);
+
+        DescrambleInfo info;
+        info.dstType = DescrambleInfo::kDestinationTypeVmPointer;
+        info.scramblingControl = (DescramblerPlugin::ScramblingControl)sctrl;
+        info.numSubSamples = descrambleSubSamples;
+        info.subSamples = (DescramblerPlugin::SubSample *)subSamples->data();
+        info.srcMem = mMem;
+        info.srcOffset = 0;
+        info.dstPtr = NULL; // in-place descrambling into srcMem
+        info.dstOffset = 0;
+
+        int32_t i = 0;
+        for (auto it = mSubSamples.begin();
+                it != mSubSamples.end() && i < descrambleSubSamples; it++, i++) {
+            if (it->transport_scrambling_mode != 0 || pesScramblingControl != 0) {
+                info.subSamples[i].mNumBytesOfClearData = 0;
+                info.subSamples[i].mNumBytesOfEncryptedData = it->subSampleSize;
+            } else {
+                info.subSamples[i].mNumBytesOfClearData = it->subSampleSize;
+                info.subSamples[i].mNumBytesOfEncryptedData = 0;
+            }
+        }
+        // If scrambled at PES-level, PES header should be skipped
+        if (pesScramblingControl != 0) {
+            info.srcOffset = info.dstOffset = pesOffset;
+            info.subSamples[0].mNumBytesOfEncryptedData -= pesOffset;
+        }
+
+        int32_t result;
+        Status status = mDescrambler->descramble(info, &result);
+
+        if (!status.isOk()) {
+            ALOGE("[stream %d] descramble failed, exceptionCode=%d",
+                    mElementaryPID, status.exceptionCode());
+            return UNKNOWN_ERROR;
+        }
+
+        ALOGV("[stream %d] descramble succeeded, %d bytes",
+                mElementaryPID, result);
+        memcpy(mBuffer->data(), mDescrambledBuffer->data(), descrambleBytes);
+    }
+
+    if (mQueue->isScrambled()) {
+        // Queue subSample info for scrambled queue
+        sp<ABuffer> clearSizesBuffer = new ABuffer(mSubSamples.size() * 4);
+        sp<ABuffer> encSizesBuffer = new ABuffer(mSubSamples.size() * 4);
+        int32_t *clearSizePtr = (int32_t*)clearSizesBuffer->data();
+        int32_t *encSizePtr = (int32_t*)encSizesBuffer->data();
+        int32_t isSync = 0;
+        int32_t i = 0;
+        for (auto it = mSubSamples.begin();
+                it != mSubSamples.end(); it++, i++) {
+            if ((it->transport_scrambling_mode == 0
+                    && pesScramblingControl == 0)
+                    || i < descrambleSubSamples) {
+                clearSizePtr[i] = it->subSampleSize;
+                encSizePtr[i] = 0;
+            } else {
+                clearSizePtr[i] = 0;
+                encSizePtr[i] = it->subSampleSize;
+            }
+            isSync |= it->random_access_indicator;
+        }
+        // Pass the original TS subsample size now. The PES header adjust
+        // will be applied when the scrambled AU is dequeued.
+        mQueue->appendScrambledData(
+                mBuffer->data(), mBuffer->size(), sctrl,
+                isSync, clearSizesBuffer, encSizesBuffer);
+    }
+
+    ABitReader br(mBuffer->data(), mBuffer->size());
+    status_t err = parsePES(&br, event);
+
+    if (err != OK) {
+        ALOGE("[stream %d] failed to parse descrambled PES, err=%d",
+                mElementaryPID, err);
+    }
+
+    return err;
+}
+
+
 status_t ATSParser::Stream::flush(SyncEvent *event) {
     if (mBuffer == NULL || mBuffer->size() == 0) {
         return OK;
@@ -1041,9 +1456,14 @@
 
     ALOGV("flushing stream 0x%04x size = %zu", mElementaryPID, mBuffer->size());
 
-    ABitReader br(mBuffer->data(), mBuffer->size());
-
-    status_t err = parsePES(&br, event);
+    status_t err = OK;
+    if (mScrambled) {
+        err = flushScrambled(event);
+        mSubSamples.clear();
+    } else {
+        ABitReader br(mBuffer->data(), mBuffer->size());
+        err = parsePES(&br, event);
+    }
 
     mBuffer->setRange(0, 0);
 
@@ -1052,7 +1472,9 @@
 
 void ATSParser::Stream::onPayloadData(
         unsigned PTS_DTS_flags, uint64_t PTS, uint64_t /* DTS */,
-        const uint8_t *data, size_t size, SyncEvent *event) {
+        unsigned PES_scrambling_control,
+        const uint8_t *data, size_t size,
+        int32_t payloadOffset, SyncEvent *event) {
 #if 0
     ALOGI("payload streamType 0x%02x, PTS = 0x%016llx, dPTS = %lld",
           mStreamType,
@@ -1061,14 +1483,15 @@
     mPrevPTS = PTS;
 #endif
 
-    ALOGV("onPayloadData mStreamType=0x%02x", mStreamType);
+    ALOGV("onPayloadData mStreamType=0x%02x size: %zu", mStreamType, size);
 
     int64_t timeUs = 0ll;  // no presentation timestamp available.
     if (PTS_DTS_flags == 2 || PTS_DTS_flags == 3) {
         timeUs = mProgram->convertPTSToTimestamp(PTS);
     }
 
-    status_t err = mQueue->appendData(data, size, timeUs);
+    status_t err = mQueue->appendData(
+            data, size, timeUs, payloadOffset, PES_scrambling_control);
 
     if (mEOSReached) {
         mQueue->signalEOS();
@@ -1090,12 +1513,16 @@
 
                 const char *mime;
                 if (meta->findCString(kKeyMIMEType, &mime)
-                        && !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)
-                        && !IsIDR(accessUnit)) {
-                    continue;
+                        && !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)) {
+                    int32_t sync = 0;
+                    if (!accessUnit->meta()->findInt32("isSync", &sync) || !sync) {
+                        continue;
+                    }
                 }
                 mSource = new AnotherPacketSource(meta);
                 mSource->queueAccessUnit(accessUnit);
+                ALOGV("onPayloadData: created AnotherPacketSource PID 0x%08x of type 0x%02x",
+                        mElementaryPID, mStreamType);
             }
         } else if (mQueue->getFormat() != NULL) {
             // After a discontinuity we invalidate the queue's format
@@ -1121,13 +1548,24 @@
                 int64_t timeUs;
                 if (accessUnit->meta()->findInt64("timeUs", &timeUs)) {
                     found = true;
-                    event->init(pesStartOffset, mSource, timeUs);
+                    event->init(pesStartOffset, mSource, timeUs, getSourceType());
                 }
             }
         }
     }
 }
 
+ATSParser::SourceType ATSParser::Stream::getSourceType() {
+    if (isVideo()) {
+        return VIDEO;
+    } else if (isAudio()) {
+        return AUDIO;
+    } else if (isMeta()) {
+        return META;
+    }
+    return NUM_SOURCE_TYPES;
+}
+
 sp<MediaSource> ATSParser::Stream::getSource(SourceType type) {
     switch (type) {
         case VIDEO:
@@ -1161,6 +1599,18 @@
     return NULL;
 }
 
+void ATSParser::Stream::setCasInfo(
+        int32_t systemId, const sp<IDescrambler> &descrambler,
+        const std::vector<uint8_t> &sessionId) {
+    if (mSource != NULL && mDescrambler == NULL && descrambler != NULL) {
+        signalDiscontinuity(DISCONTINUITY_FORMAT_ONLY, NULL);
+        mDescrambler = descrambler;
+        if (mQueue->isScrambled()) {
+            mQueue->setCasInfo(systemId, sessionId);
+        }
+    }
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 
 ATSParser::ATSParser(uint32_t flags)
@@ -1172,6 +1622,7 @@
       mNumTSPacketsParsed(0),
       mNumPCRs(0) {
     mPSISections.add(0 /* PID */, new PSISection);
+    mCasManager = new CasManager();
 }
 
 ATSParser::~ATSParser() {
@@ -1188,6 +1639,17 @@
     return parseTS(&br, event);
 }
 
+status_t ATSParser::setMediaCas(const sp<ICas> &cas) {
+    status_t err = mCasManager->setMediaCas(cas);
+    if (err != OK) {
+        return err;
+    }
+    for (size_t i = 0; i < mPrograms.size(); ++i) {
+        mPrograms.editItemAt(i)->updateCasSessions();
+    }
+    return OK;
+}
+
 void ATSParser::signalDiscontinuity(
         DiscontinuityType type, const sp<AMessage> &extra) {
     int64_t mediaTimeUs;
@@ -1299,6 +1761,9 @@
             if (!found) {
                 mPrograms.push(
                         new Program(this, program_number, programMapPID, mLastRecoveredPTS));
+                if (mSampleAesKeyItem != NULL) {
+                    mPrograms.top()->signalNewSampleAesKey(mSampleAesKeyItem);
+                }
             }
 
             if (mPSISections.indexOfKey(programMapPID) < 0) {
@@ -1314,6 +1779,8 @@
         ABitReader *br, unsigned PID,
         unsigned continuity_counter,
         unsigned payload_unit_start_indicator,
+        unsigned transport_scrambling_control,
+        unsigned random_access_indicator,
         SyncEvent *event) {
     ssize_t sectionIndex = mPSISections.indexOfKey(PID);
 
@@ -1385,7 +1852,10 @@
     for (size_t i = 0; i < mPrograms.size(); ++i) {
         status_t err;
         if (mPrograms.editItemAt(i)->parsePID(
-                    PID, continuity_counter, payload_unit_start_indicator,
+                    PID, continuity_counter,
+                    payload_unit_start_indicator,
+                    transport_scrambling_control,
+                    random_access_indicator,
                     br, &err, event)) {
             if (err != OK) {
                 return err;
@@ -1397,13 +1867,19 @@
     }
 
     if (!handled) {
+        handled = mCasManager->parsePID(br, PID);
+    }
+
+    if (!handled) {
         ALOGV("PID 0x%04x not handled.", PID);
     }
 
     return OK;
 }
 
-status_t ATSParser::parseAdaptationField(ABitReader *br, unsigned PID) {
+status_t ATSParser::parseAdaptationField(
+        ABitReader *br, unsigned PID, unsigned *random_access_indicator) {
+    *random_access_indicator = 0;
     unsigned adaptation_field_length = br->getBits(8);
 
     if (adaptation_field_length > 0) {
@@ -1418,7 +1894,16 @@
             ALOGV("PID 0x%04x: discontinuity_indicator = 1 (!!!)", PID);
         }
 
-        br->skipBits(2);
+        *random_access_indicator = br->getBits(1);
+        if (*random_access_indicator) {
+            ALOGV("PID 0x%04x: random_access_indicator = 1", PID);
+        }
+
+        unsigned elementary_stream_priority_indicator = br->getBits(1);
+        if (elementary_stream_priority_indicator) {
+            ALOGV("PID 0x%04x: elementary_stream_priority_indicator = 1", PID);
+        }
+
         unsigned PCR_flag = br->getBits(1);
 
         size_t numBitsRead = 4;
@@ -1484,7 +1969,8 @@
     unsigned PID = br->getBits(13);
     ALOGV("PID = 0x%04x", PID);
 
-    MY_LOGV("transport_scrambling_control = %u", br->getBits(2));
+    unsigned transport_scrambling_control = br->getBits(2);
+    ALOGV("transport_scrambling_control = %u", transport_scrambling_control);
 
     unsigned adaptation_field_control = br->getBits(2);
     ALOGV("adaptation_field_control = %u", adaptation_field_control);
@@ -1496,13 +1982,17 @@
 
     status_t err = OK;
 
+    unsigned random_access_indicator = 0;
     if (adaptation_field_control == 2 || adaptation_field_control == 3) {
-        err = parseAdaptationField(br, PID);
+        err = parseAdaptationField(br, PID, &random_access_indicator);
     }
     if (err == OK) {
         if (adaptation_field_control == 1 || adaptation_field_control == 3) {
             err = parsePID(br, PID, continuity_counter,
-                    payload_unit_start_indicator, event);
+                    payload_unit_start_indicator,
+                    transport_scrambling_control,
+                    random_access_indicator,
+                    event);
         }
     }
 
@@ -1565,6 +2055,16 @@
     return mPrograms.editItemAt(0)->PTSTimeDeltaEstablished();
 }
 
+int64_t ATSParser::getFirstPTSTimeUs() {
+    for (size_t i = 0; i < mPrograms.size(); ++i) {
+        sp<ATSParser::Program> program = mPrograms.itemAt(i);
+        if (program->PTSTimeDeltaEstablished()) {
+            return (program->firstPTS() * 100) / 9;
+        }
+    }
+    return -1;
+}
+
 __attribute__((no_sanitize("integer")))
 void ATSParser::updatePCR(
         unsigned /* PID */, uint64_t PCR, uint64_t byteOffsetFromStart) {
@@ -1762,4 +2262,40 @@
     ALOGV("crc: %08x\n", crc);
     return (crc == 0);
 }
+
+// SAMPLE_AES key handling
+// TODO: Merge these to their respective class after Widevine-HLS
+void ATSParser::signalNewSampleAesKey(const sp<AMessage> &keyItem) {
+    ALOGD("signalNewSampleAesKey: %p", keyItem.get());
+
+    mSampleAesKeyItem = keyItem;
+
+    // a NULL key item will propagate to existing ElementaryStreamQueues
+    for (size_t i = 0; i < mPrograms.size(); ++i) {
+        mPrograms[i]->signalNewSampleAesKey(keyItem);
+    }
+}
+
+void ATSParser::Program::signalNewSampleAesKey(const sp<AMessage> &keyItem) {
+    ALOGD("Program::signalNewSampleAesKey: %p", keyItem.get());
+
+    mSampleAesKeyItem = keyItem;
+
+    // a NULL key item will propagate to existing ElementaryStreamQueues
+    for (size_t i = 0; i < mStreams.size(); ++i) {
+        mStreams[i]->signalNewSampleAesKey(keyItem);
+    }
+}
+
+void ATSParser::Stream::signalNewSampleAesKey(const sp<AMessage> &keyItem) {
+    ALOGD("Stream::signalNewSampleAesKey: 0x%04x size = %zu keyItem: %p",
+          mElementaryPID, mBuffer->size(), keyItem.get());
+
+    // a NULL key item will propagate to existing ElementaryStreamQueues
+    mSampleAesKeyItem = keyItem;
+
+    flush(NULL);
+    mQueue->signalNewSampleAesKey(keyItem);
+}
+
 }  // namespace android
diff --git a/media/libstagefright/mpeg2ts/ATSParser.h b/media/libstagefright/mpeg2ts/ATSParser.h
index 9d9102d..374e011 100644
--- a/media/libstagefright/mpeg2ts/ATSParser.h
+++ b/media/libstagefright/mpeg2ts/ATSParser.h
@@ -26,11 +26,17 @@
 #include <utils/KeyedVector.h>
 #include <utils/Vector.h>
 #include <utils/RefBase.h>
+#include <vector>
 
 namespace android {
-
+namespace media {
+class ICas;
+class IDescrambler;
+};
+using namespace media;
 class ABitReader;
 struct ABuffer;
+struct AnotherPacketSource;
 
 struct ATSParser : public RefBase {
     enum DiscontinuityType {
@@ -62,18 +68,26 @@
         ALIGNED_VIDEO_DATA         = 2,
     };
 
+    enum SourceType {
+        VIDEO = 0,
+        AUDIO = 1,
+        META  = 2,
+        NUM_SOURCE_TYPES = 3
+    };
+
     // Event is used to signal sync point event at feedTSPacket().
     struct SyncEvent {
-        SyncEvent(off64_t offset);
+        explicit SyncEvent(off64_t offset);
 
         void init(off64_t offset, const sp<MediaSource> &source,
-                int64_t timeUs);
+                int64_t timeUs, SourceType type);
 
         bool hasReturnedData() const { return mHasReturnedData; }
         void reset();
         off64_t getOffset() const { return mOffset; }
         const sp<MediaSource> &getMediaSource() const { return mMediaSource; }
         int64_t getTimeUs() const { return mTimeUs; }
+        SourceType getType() const { return mType; }
 
     private:
         bool mHasReturnedData;
@@ -87,9 +101,12 @@
         sp<MediaSource> mMediaSource;
         /* The timestamp of the sync frame. */
         int64_t mTimeUs;
+        SourceType mType;
     };
 
-    ATSParser(uint32_t flags = 0);
+    explicit ATSParser(uint32_t flags = 0);
+
+    status_t setMediaCas(const sp<ICas> &cas);
 
     // Feed a TS packet into the parser. uninitialized event with the start
     // offset of this TS packet goes in, and if the parser detects PES with
@@ -107,17 +124,15 @@
 
     void signalEOS(status_t finalResult);
 
-    enum SourceType {
-        VIDEO = 0,
-        AUDIO = 1,
-        META  = 2,
-        NUM_SOURCE_TYPES = 3
-    };
     sp<MediaSource> getSource(SourceType type);
     bool hasSource(SourceType type) const;
 
     bool PTSTimeDeltaEstablished();
 
+    int64_t getFirstPTSTimeUs();
+
+    void signalNewSampleAesKey(const sp<AMessage> &keyItem);
+
     enum {
         // From ISO/IEC 13818-1: 2000 (E), Table 2-29
         STREAMTYPE_RESERVED             = 0x00,
@@ -136,6 +151,11 @@
         // Stream type 0x83 is non-standard,
         // it could be LPCM or TrueHD AC3
         STREAMTYPE_LPCM_AC3             = 0x83,
+
+        //Sample Encrypted types
+        STREAMTYPE_H264_ENCRYPTED       = 0xDB,
+        STREAMTYPE_AAC_ENCRYPTED        = 0xCF,
+        STREAMTYPE_AC3_ENCRYPTED        = 0xC1,
     };
 
 protected:
@@ -145,6 +165,14 @@
     struct Program;
     struct Stream;
     struct PSISection;
+    struct CasManager;
+    struct CADescriptor {
+        int32_t mSystemID;
+        unsigned mPID;
+        std::vector<uint8_t> mPrivateData;
+    };
+
+    sp<CasManager> mCasManager;
 
     uint32_t mFlags;
     Vector<sp<Program> > mPrograms;
@@ -160,6 +188,8 @@
 
     size_t mNumTSPacketsParsed;
 
+    sp<AMessage> mSampleAesKeyItem;
+
     void parseProgramAssociationTable(ABitReader *br);
     void parseProgramMap(ABitReader *br);
     // Parse PES packet where br is pointing to. If the PES contains a sync
@@ -176,9 +206,13 @@
         ABitReader *br, unsigned PID,
         unsigned continuity_counter,
         unsigned payload_unit_start_indicator,
+        unsigned transport_scrambling_control,
+        unsigned random_access_indicator,
         SyncEvent *event);
 
-    status_t parseAdaptationField(ABitReader *br, unsigned PID);
+    status_t parseAdaptationField(
+            ABitReader *br, unsigned PID, unsigned *random_access_indicator);
+
     // see feedTSPacket().
     status_t parseTS(ABitReader *br, SyncEvent *event);
 
diff --git a/media/libstagefright/mpeg2ts/Android.mk b/media/libstagefright/mpeg2ts/Android.mk
index 70afde9..20acfe7 100644
--- a/media/libstagefright/mpeg2ts/Android.mk
+++ b/media/libstagefright/mpeg2ts/Android.mk
@@ -5,7 +5,9 @@
 LOCAL_SRC_FILES:=                 \
         AnotherPacketSource.cpp   \
         ATSParser.cpp             \
+        CasManager.cpp            \
         ESQueue.cpp               \
+        HlsSampleDecryptor.cpp    \
         MPEG2PSExtractor.cpp      \
         MPEG2TSExtractor.cpp      \
 
@@ -14,8 +16,12 @@
 	$(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
+
+LOCAL_SHARED_LIBRARIES := \
+        libcrypto \
+        libmedia \
 
 LOCAL_MODULE:= libstagefright_mpeg2ts
 
diff --git a/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp b/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
index 4fcf7b5..433b1fc 100644
--- a/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
+++ b/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
@@ -44,6 +44,7 @@
       mEnabled(true),
       mFormat(NULL),
       mLastQueuedTimeUs(0),
+      mEstimatedBufferDurationUs(-1),
       mEOSResult(OK),
       mLatestEnqueuedMeta(NULL),
       mLatestDequeuedMeta(NULL) {
@@ -203,25 +204,53 @@
         }
 
         MediaBuffer *mediaBuffer = new MediaBuffer(buffer);
+        sp<MetaData> bufmeta = mediaBuffer->meta_data();
 
-        mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
+        bufmeta->setInt64(kKeyTime, timeUs);
 
         int32_t isSync;
         if (buffer->meta()->findInt32("isSync", &isSync)) {
-            mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, isSync);
+            bufmeta->setInt32(kKeyIsSyncFrame, isSync);
         }
 
         sp<ABuffer> sei;
         if (buffer->meta()->findBuffer("sei", &sei) && sei != NULL) {
-            mediaBuffer->meta_data()->setData(kKeySEI, 0, sei->data(), sei->size());
+            bufmeta->setData(kKeySEI, 0, sei->data(), sei->size());
         }
 
         sp<ABuffer> mpegUserData;
         if (buffer->meta()->findBuffer("mpegUserData", &mpegUserData) && mpegUserData != NULL) {
-            mediaBuffer->meta_data()->setData(
+            bufmeta->setData(
                     kKeyMpegUserData, 0, mpegUserData->data(), mpegUserData->size());
         }
 
+        int32_t cryptoMode;
+        if (buffer->meta()->findInt32("cryptoMode", &cryptoMode)) {
+            int32_t cryptoKey;
+            sp<ABuffer> clearBytesBuffer, encBytesBuffer;
+
+            CHECK(buffer->meta()->findInt32("cryptoKey", &cryptoKey));
+            CHECK(buffer->meta()->findBuffer("clearBytes", &clearBytesBuffer)
+                    && clearBytesBuffer != NULL);
+            CHECK(buffer->meta()->findBuffer("encBytes", &encBytesBuffer)
+                    && encBytesBuffer != NULL);
+
+            bufmeta->setInt32(kKeyCryptoMode, cryptoMode);
+
+            uint8_t array[16] = {0};
+            bufmeta->setData(kKeyCryptoIV, 0, array, 16);
+
+            array[0] = (uint8_t) (cryptoKey & 0xff);
+            bufmeta->setData(kKeyCryptoKey, 0, array, 16);
+
+            bufmeta->setData(kKeyPlainSizes, 0,
+                    clearBytesBuffer->data(), clearBytesBuffer->size());
+
+            bufmeta->setData(kKeyEncryptedSizes, 0,
+                    encBytesBuffer->data(), encBytesBuffer->size());
+        }
+
+
         *out = mediaBuffer;
         return OK;
     }
@@ -309,6 +338,8 @@
 
     mFormat = NULL;
     mLatestEnqueuedMeta = NULL;
+
+    mEstimatedBufferDurationUs = -1;
 }
 
 void AnotherPacketSource::queueDiscontinuity(
@@ -431,6 +462,31 @@
     return durationUs;
 }
 
+int64_t AnotherPacketSource::getEstimatedBufferDurationUs() {
+    Mutex::Autolock autoLock(mLock);
+    if (mEstimatedBufferDurationUs >= 0) {
+        return mEstimatedBufferDurationUs;
+    }
+
+    SortedVector<int64_t> maxTimesUs;
+    List<sp<ABuffer> >::iterator it;
+    int64_t t1 = 0, t2 = 0;
+    for (it = mBuffers.begin(); it != mBuffers.end(); ++it) {
+        int64_t timeUs = 0;
+        const sp<ABuffer> &buffer = *it;
+        if (!buffer->meta()->findInt64("timeUs", &timeUs)) {
+            continue;
+        }
+        maxTimesUs.add(timeUs);
+        while (maxTimesUs.size() > 2) {
+            maxTimesUs.removeAt(0);
+            t1 = maxTimesUs.itemAt(0);
+            t2 = maxTimesUs.itemAt(1);
+        }
+    }
+    return mEstimatedBufferDurationUs = t2 - t1;
+}
+
 status_t AnotherPacketSource::nextBufferTime(int64_t *timeUs) {
     *timeUs = 0;
 
diff --git a/media/libstagefright/mpeg2ts/AnotherPacketSource.h b/media/libstagefright/mpeg2ts/AnotherPacketSource.h
index 28a0e89..b0890d7 100644
--- a/media/libstagefright/mpeg2ts/AnotherPacketSource.h
+++ b/media/libstagefright/mpeg2ts/AnotherPacketSource.h
@@ -30,7 +30,7 @@
 struct ABuffer;
 
 struct AnotherPacketSource : public MediaSource {
-    AnotherPacketSource(const sp<MetaData> &meta);
+    explicit AnotherPacketSource(const sp<MetaData> &meta);
 
     void setFormat(const sp<MetaData> &meta);
 
@@ -57,6 +57,9 @@
     // presentation timestamps since the last discontinuity (if any).
     int64_t getBufferedDurationUs(status_t *finalResult);
 
+    // Returns the difference between the two largest timestamps queued
+    int64_t getEstimatedBufferDurationUs();
+
     status_t nextBufferTime(int64_t *timeUs);
 
     void queueAccessUnit(const sp<ABuffer> &buffer);
@@ -113,6 +116,7 @@
     bool mEnabled;
     sp<MetaData> mFormat;
     int64_t mLastQueuedTimeUs;
+    int64_t mEstimatedBufferDurationUs;
     List<sp<ABuffer> > mBuffers;
     status_t mEOSResult;
     sp<AMessage> mLatestEnqueuedMeta;
diff --git a/media/libstagefright/mpeg2ts/CasManager.cpp b/media/libstagefright/mpeg2ts/CasManager.cpp
new file mode 100644
index 0000000..047b1b3
--- /dev/null
+++ b/media/libstagefright/mpeg2ts/CasManager.cpp
@@ -0,0 +1,328 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "CasManager"
+#include "CasManager.h"
+
+#include <android/media/ICas.h>
+#include <android/media/IDescrambler.h>
+#include <android/media/IMediaCasService.h>
+#include <binder/IServiceManager.h>
+#include <media/stagefright/foundation/ABitReader.h>
+#include <utils/Log.h>
+
+namespace android {
+using binder::Status;
+
+struct ATSParser::CasManager::ProgramCasManager : public RefBase {
+    ProgramCasManager(unsigned programNumber, const CADescriptor &descriptor);
+    ProgramCasManager(unsigned programNumber);
+
+    bool addStream(unsigned elementaryPID, const CADescriptor &descriptor);
+
+    status_t setMediaCas(const sp<ICas> &cas, PidToSessionMap &sessionMap);
+
+    bool getCasSession(unsigned elementaryPID,
+            sp<IDescrambler> *descrambler, std::vector<uint8_t> *sessionId) const;
+
+    void closeAllSessions(const sp<ICas>& cas);
+
+private:
+    struct CasSession {
+        CasSession() {}
+        CasSession(const CADescriptor &descriptor) :
+            mCADescriptor(descriptor) {}
+
+        CADescriptor mCADescriptor;
+        std::vector<uint8_t> mSessionId;
+        sp<IDescrambler> mDescrambler;
+    };
+    status_t initSession(
+            const sp<ICas>& cas,
+            PidToSessionMap &sessionMap,
+            CasSession *session);
+    void closeSession(const sp<ICas>& cas, const CasSession &casSession);
+
+    unsigned mProgramNumber;
+    bool mHasProgramCas;
+    CasSession mProgramCas;
+    KeyedVector<unsigned, CasSession> mStreamPidToCasMap;
+};
+
+ATSParser::CasManager::ProgramCasManager::ProgramCasManager(
+        unsigned programNumber, const CADescriptor &descriptor) :
+    mProgramNumber(programNumber),
+    mHasProgramCas(true),
+    mProgramCas(descriptor) {}
+
+ATSParser::CasManager::ProgramCasManager::ProgramCasManager(
+        unsigned programNumber) :
+    mProgramNumber(programNumber),
+    mHasProgramCas(false) {}
+
+bool ATSParser::CasManager::ProgramCasManager::addStream(
+        unsigned elementaryPID, const CADescriptor &descriptor) {
+    ssize_t index = mStreamPidToCasMap.indexOfKey(elementaryPID);
+    if (index >= 0) {
+        return false;
+    }
+    ALOGV("addStream: program=%d, elementaryPID=%d, CA_system_ID=0x%x",
+            mProgramNumber, elementaryPID, descriptor.mSystemID);
+    mStreamPidToCasMap.add(elementaryPID, CasSession(descriptor));
+    return true;
+}
+
+status_t ATSParser::CasManager::ProgramCasManager::setMediaCas(
+        const sp<ICas> &cas, PidToSessionMap &sessionMap) {
+    if (mHasProgramCas) {
+        return initSession(cas, sessionMap, &mProgramCas);
+    }
+    // TODO: share session among streams that has identical CA_descriptors.
+    // For now, we open one session for each stream that has CA_descriptor.
+    for (size_t index = 0; index < mStreamPidToCasMap.size(); index++) {
+        status_t err = initSession(
+                cas, sessionMap, &mStreamPidToCasMap.editValueAt(index));
+        if (err != OK) {
+            return err;
+        }
+    }
+    return OK;
+}
+
+bool ATSParser::CasManager::ProgramCasManager::getCasSession(
+        unsigned elementaryPID, sp<IDescrambler> *descrambler,
+        std::vector<uint8_t> *sessionId) const {
+    if (mHasProgramCas) {
+        *descrambler = mProgramCas.mDescrambler;
+        *sessionId = mProgramCas.mSessionId;
+        return true;
+    }
+    ssize_t index = mStreamPidToCasMap.indexOfKey(elementaryPID);
+    if (index < 0) {
+        return false;
+    }
+
+    *descrambler = mStreamPidToCasMap[index].mDescrambler;
+    *sessionId = mStreamPidToCasMap[index].mSessionId;
+    return true;
+}
+
+status_t ATSParser::CasManager::ProgramCasManager::initSession(
+         const sp<ICas>& cas,
+         PidToSessionMap &sessionMap,
+         CasSession *session) {
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> casServiceBinder = sm->getService(String16("media.cas"));
+    sp<IMediaCasService> casService =
+            interface_cast<IMediaCasService>(casServiceBinder);
+
+    if (casService == NULL) {
+        ALOGE("Cannot obtain IMediaCasService");
+        return NO_INIT;
+    }
+
+    sp<IDescrambler> descrambler;
+    std::vector<uint8_t> sessionId;
+    const CADescriptor &descriptor = session->mCADescriptor;
+
+    Status status = cas->openSession(&sessionId);
+    if (!status.isOk()) {
+        ALOGE("Failed to open session: exception=%d, error=%d",
+                status.exceptionCode(), status.serviceSpecificErrorCode());
+        goto l_fail;
+    }
+
+    cas->setSessionPrivateData(sessionId, descriptor.mPrivateData);
+    if (!status.isOk()) {
+        ALOGE("Failed to set private data: exception=%d, error=%d",
+                status.exceptionCode(), status.serviceSpecificErrorCode());
+        goto l_fail;
+    }
+
+    status = casService->createDescrambler(descriptor.mSystemID, &descrambler);
+    if (!status.isOk() || descrambler == NULL) {
+        ALOGE("Failed to create descrambler: : exception=%d, error=%d",
+                status.exceptionCode(), status.serviceSpecificErrorCode());
+        goto l_fail;
+    }
+
+    status = descrambler->setMediaCasSession(sessionId);
+    if (!status.isOk()) {
+        ALOGE("Failed to init descrambler: : exception=%d, error=%d",
+                status.exceptionCode(), status.serviceSpecificErrorCode());
+        goto l_fail;
+    }
+
+    session->mSessionId = sessionId;
+    session->mDescrambler = descrambler;
+    sessionMap.add(descriptor.mPID, sessionId);
+
+    return OK;
+
+l_fail:
+    if (!sessionId.empty()) {
+        cas->closeSession(sessionId);
+    }
+    if (descrambler != NULL) {
+        descrambler->release();
+    }
+    return NO_INIT;
+}
+
+void ATSParser::CasManager::ProgramCasManager::closeSession(
+        const sp<ICas>& cas, const CasSession &casSession) {
+    if (casSession.mDescrambler != NULL) {
+        casSession.mDescrambler->release();
+    }
+    if (!casSession.mSessionId.empty()) {
+        cas->closeSession(casSession.mSessionId);
+    }
+}
+
+void ATSParser::CasManager::ProgramCasManager::closeAllSessions(
+        const sp<ICas>& cas) {
+    if (mHasProgramCas) {
+        closeSession(cas, mProgramCas);
+    }
+    for (size_t index = 0; index < mStreamPidToCasMap.size(); index++) {
+        closeSession(cas, mStreamPidToCasMap.editValueAt(index));
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+ATSParser::CasManager::CasManager() : mSystemId(-1) {}
+
+ATSParser::CasManager::~CasManager() {
+    // Explictly close the sessions opened by us, since the CAS object is owned
+    // by the app and may not go away after the parser is destroyed, and the app
+    // may not have information about the sessions.
+    if (mICas != NULL) {
+        for (size_t index = 0; index < mProgramCasMap.size(); index++) {
+            mProgramCasMap.editValueAt(index)->closeAllSessions(mICas);
+        }
+    }
+}
+
+bool ATSParser::CasManager::setSystemId(int32_t CA_system_ID) {
+    if (mSystemId == -1) {
+        // Verify the CA_system_ID is within range on the first program
+        if (CA_system_ID < 0 || CA_system_ID > 0xffff) {
+            ALOGE("Invalid CA_system_id: %d", CA_system_ID);
+            return false;
+        }
+        mSystemId = CA_system_ID;
+    } else if (mSystemId != CA_system_ID) {
+        // All sessions need to be under the same CA system
+        ALOGE("Multiple CA systems not allowed: %d vs %d",
+                mSystemId, CA_system_ID);
+        return false;
+    }
+    return true;
+}
+
+status_t ATSParser::CasManager::setMediaCas(const sp<ICas> &cas) {
+    if (cas == NULL) {
+        ALOGE("setMediaCas: received NULL object");
+        return BAD_VALUE;
+    }
+    if (mICas != NULL) {
+        ALOGW("setMediaCas: already set");
+        return ALREADY_EXISTS;
+    }
+    for (size_t index = 0; index < mProgramCasMap.size(); index++) {
+        status_t err;
+        if ((err = mProgramCasMap.editValueAt(
+                index)->setMediaCas(cas, mCAPidToSessionIdMap)) != OK) {
+            return err;
+        }
+    }
+    mICas = cas;
+    return OK;
+}
+
+bool ATSParser::CasManager::addProgram(
+        unsigned programNumber, const CADescriptor &descriptor) {
+    if (!setSystemId(descriptor.mSystemID)) {
+        return false;
+    }
+
+    ssize_t index = mProgramCasMap.indexOfKey(programNumber);
+    if (index < 0) {
+        ALOGV("addProgram: programNumber=%d, CA_system_ID=0x%x",
+                programNumber, descriptor.mSystemID);
+        mProgramCasMap.add(programNumber,
+                new ProgramCasManager(programNumber, descriptor));
+        mCAPidSet.insert(descriptor.mPID);
+    }
+    return true;
+}
+
+bool ATSParser::CasManager::addStream(
+        unsigned programNumber, unsigned elementaryPID,
+        const CADescriptor &descriptor) {
+    if (!setSystemId(descriptor.mSystemID)) {
+        return false;
+    }
+
+    ssize_t index = mProgramCasMap.indexOfKey(programNumber);
+    sp<ProgramCasManager> programCasManager;
+    if (index < 0) {
+        ALOGV("addProgram (no CADescriptor): programNumber=%d", programNumber);
+        programCasManager = new ProgramCasManager(programNumber);
+        mProgramCasMap.add(programNumber, programCasManager);
+    } else {
+        programCasManager = mProgramCasMap.editValueAt(index);
+    }
+    if (programCasManager->addStream(elementaryPID, descriptor)) {
+        mCAPidSet.insert(descriptor.mPID);
+    }
+    return true;
+}
+
+bool ATSParser::CasManager::getCasInfo(
+        unsigned programNumber, unsigned elementaryPID,
+        int32_t *systemId, sp<IDescrambler> *descrambler,
+        std::vector<uint8_t> *sessionId) const {
+    ssize_t index = mProgramCasMap.indexOfKey(programNumber);
+    if (index < 0) {
+        return false;
+    }
+    *systemId = mSystemId;
+    return mProgramCasMap[index]->getCasSession(
+            elementaryPID, descrambler, sessionId);
+}
+
+bool ATSParser::CasManager::isCAPid(unsigned pid) {
+    return mCAPidSet.find(pid) != mCAPidSet.end();
+}
+
+bool ATSParser::CasManager::parsePID(ABitReader *br, unsigned pid) {
+    ssize_t index = mCAPidToSessionIdMap.indexOfKey(pid);
+    if (index < 0) {
+        return false;
+    }
+    MediaCas::ParcelableCasData ecm(br->data(), br->numBitsLeft() / 8);
+    Status status = mICas->processEcm(mCAPidToSessionIdMap[index], ecm);
+    if (!status.isOk()) {
+        ALOGE("Failed to process ECM: exception=%d, error=%d",
+                status.exceptionCode(), status.serviceSpecificErrorCode());
+    }
+    return true; // handled
+}
+
+}  // namespace android
diff --git a/media/libstagefright/mpeg2ts/CasManager.h b/media/libstagefright/mpeg2ts/CasManager.h
new file mode 100644
index 0000000..8088dec
--- /dev/null
+++ b/media/libstagefright/mpeg2ts/CasManager.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+
+#include "ATSParser.h"
+#include <utils/KeyedVector.h>
+#include <set>
+
+namespace android {
+namespace media {
+class ICas;
+class IDescrambler;
+}
+
+struct ATSParser::CasManager : public RefBase {
+    CasManager();
+    virtual ~CasManager();
+
+    status_t setMediaCas(const sp<ICas> &cas);
+
+    bool addProgram(
+            unsigned programNumber, const CADescriptor &descriptor);
+
+    bool addStream(
+            unsigned programNumber, unsigned elementaryPID,
+            const CADescriptor &descriptor);
+
+    bool getCasInfo(
+            unsigned programNumber, unsigned elementaryPID,
+            int32_t *systemId, sp<IDescrambler> *descrambler,
+            std::vector<uint8_t> *sessionId) const;
+
+    bool isCAPid(unsigned pid);
+
+    bool parsePID(ABitReader *br, unsigned pid);
+
+private:
+    typedef KeyedVector<unsigned, std::vector<uint8_t> > PidToSessionMap;
+    struct ProgramCasManager;
+
+    bool setSystemId(int32_t CA_system_ID);
+
+    int32_t mSystemId;
+    sp<ICas> mICas;
+    KeyedVector<unsigned, sp<ProgramCasManager> > mProgramCasMap;
+    PidToSessionMap mCAPidToSessionIdMap;
+    std::set<uint32_t> mCAPidSet;
+};
+
+}  // namespace android
diff --git a/media/libstagefright/mpeg2ts/ESQueue.cpp b/media/libstagefright/mpeg2ts/ESQueue.cpp
index 7599c13..1cf9744 100644
--- a/media/libstagefright/mpeg2ts/ESQueue.cpp
+++ b/media/libstagefright/mpeg2ts/ESQueue.cpp
@@ -28,6 +28,8 @@
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
+#include <media/cas/DescramblerAPI.h>
+#include <media/hardware/CryptoAPI.h>
 
 #include "include/avc_utils.h"
 
@@ -39,7 +41,16 @@
 ElementaryStreamQueue::ElementaryStreamQueue(Mode mode, uint32_t flags)
     : mMode(mode),
       mFlags(flags),
-      mEOSReached(false) {
+      mEOSReached(false),
+      mCASystemId(0),
+      mAUIndex(0) {
+
+    ALOGV("ElementaryStreamQueue(%p) mode %x  flags %x  isScrambled %d  isSampleEncrypted %d",
+            this, mode, flags, isScrambled(), isSampleEncrypted());
+
+    // Create the decryptor anyway since we don't know the use-case unless key is provided
+    // Won't decrypt if key info not available (e.g., scanner/extractor just parsing ts files)
+    mSampleDecryptor = isSampleEncrypted() ? new HlsSampleDecryptor : NULL;
 }
 
 sp<MetaData> ElementaryStreamQueue::getFormat() {
@@ -53,6 +64,11 @@
 
     mRangeInfos.clear();
 
+    if (mScrambledBuffer != NULL) {
+        mScrambledBuffer->setRange(0, 0);
+    }
+    mScrambledRangeInfos.clear();
+
     if (clearFormat) {
         mFormat.clear();
     }
@@ -60,6 +76,16 @@
     mEOSReached = false;
 }
 
+bool ElementaryStreamQueue::isScrambled() const {
+    return (mFlags & kFlag_ScrambledData) != 0;
+}
+
+void ElementaryStreamQueue::setCasInfo(
+        int32_t systemId, const std::vector<uint8_t> &sessionId) {
+    mCASystemId = systemId;
+    mCasSessionId = sessionId;
+}
+
 // Parse AC3 header assuming the current ptr is start position of syncframe,
 // update metadata only applicable, and return the payload size
 static unsigned parseAC3SyncFrame(
@@ -246,7 +272,8 @@
 }
 
 status_t ElementaryStreamQueue::appendData(
-        const void *data, size_t size, int64_t timeUs) {
+        const void *data, size_t size, int64_t timeUs,
+        int32_t payloadOffset, uint32_t pesScramblingControl) {
 
     if (mEOSReached) {
         ALOGE("appending data after EOS");
@@ -276,7 +303,7 @@
                     return ERROR_MALFORMED;
                 }
 
-                if (startOffset > 0) {
+                if (mFormat == NULL && startOffset > 0) {
                     ALOGI("found something resembling an H.264/MPEG syncword "
                           "at offset %zd",
                           startOffset);
@@ -451,6 +478,8 @@
     RangeInfo info;
     info.mLength = size;
     info.mTimestampUs = timeUs;
+    info.mPesOffset = payloadOffset;
+    info.mPesScramblingControl = pesScramblingControl;
     mRangeInfos.push_back(info);
 
 #if 0
@@ -463,8 +492,129 @@
     return OK;
 }
 
+void ElementaryStreamQueue::appendScrambledData(
+        const void *data, size_t size,
+        int32_t keyId, bool isSync,
+        sp<ABuffer> clearSizes, sp<ABuffer> encSizes) {
+    if (!isScrambled()) {
+        return;
+    }
+
+    size_t neededSize = (mScrambledBuffer == NULL ? 0 : mScrambledBuffer->size()) + size;
+    if (mScrambledBuffer == NULL || neededSize > mScrambledBuffer->capacity()) {
+        neededSize = (neededSize + 65535) & ~65535;
+
+        ALOGI("resizing scrambled buffer to size %zu", neededSize);
+
+        sp<ABuffer> buffer = new ABuffer(neededSize);
+        if (mScrambledBuffer != NULL) {
+            memcpy(buffer->data(), mScrambledBuffer->data(), mScrambledBuffer->size());
+            buffer->setRange(0, mScrambledBuffer->size());
+        } else {
+            buffer->setRange(0, 0);
+        }
+
+        mScrambledBuffer = buffer;
+    }
+    memcpy(mScrambledBuffer->data() + mScrambledBuffer->size(), data, size);
+    mScrambledBuffer->setRange(0, mScrambledBuffer->size() + size);
+
+    ScrambledRangeInfo scrambledInfo;
+    scrambledInfo.mLength = size;
+    scrambledInfo.mKeyId = keyId;
+    scrambledInfo.mIsSync = isSync;
+    scrambledInfo.mClearSizes = clearSizes;
+    scrambledInfo.mEncSizes = encSizes;
+
+    ALOGV("[stream %d] appending scrambled range: size=%zu", mMode, size);
+
+    mScrambledRangeInfos.push_back(scrambledInfo);
+}
+
+sp<ABuffer> ElementaryStreamQueue::dequeueScrambledAccessUnit() {
+    size_t nextScan = mBuffer->size();
+    mBuffer->setRange(0, 0);
+    int32_t pesOffset = 0, pesScramblingControl = 0;
+    int64_t timeUs = fetchTimestamp(nextScan, &pesOffset, &pesScramblingControl);
+    if (timeUs < 0ll) {
+        ALOGE("Negative timeUs");
+        return NULL;
+    }
+
+    // return scrambled unit
+    int32_t keyId = pesScramblingControl, isSync = 0, scrambledLength = 0;
+    sp<ABuffer> clearSizes, encSizes;
+    while (mScrambledRangeInfos.size() > mRangeInfos.size()) {
+        auto it = mScrambledRangeInfos.begin();
+        ALOGV("[stream %d] fetching scrambled range: size=%zu", mMode, it->mLength);
+
+        if (scrambledLength > 0) {
+            // This shouldn't happen since we always dequeue the entire PES.
+            ALOGW("Discarding srambled length %d", scrambledLength);
+        }
+        scrambledLength = it->mLength;
+
+        // TODO: handle key id change, use first non-zero keyId for now
+        if (keyId == 0) {
+            keyId = it->mKeyId;
+        }
+        clearSizes = it->mClearSizes;
+        encSizes = it->mEncSizes;
+        isSync = it->mIsSync;
+        mScrambledRangeInfos.erase(it);
+    }
+    if (scrambledLength == 0) {
+        ALOGE("[stream %d] empty scrambled unit!", mMode);
+        return NULL;
+    }
+
+    // skip the PES header, and copy the rest into scrambled access unit
+    sp<ABuffer> scrambledAccessUnit = ABuffer::CreateAsCopy(
+            mScrambledBuffer->data() + pesOffset,
+            scrambledLength - pesOffset);
+
+    // fix up first sample size after skipping the PES header
+    if (pesOffset > 0) {
+        int32_t &firstClearSize = *(int32_t*)clearSizes->data();
+        int32_t &firstEncSize = *(int32_t*)encSizes->data();
+        // Cut away the PES header
+        if (firstClearSize >= pesOffset) {
+            // This is for TS-level scrambling, we descrambled the first
+            // (or it was clear to begin with)
+            firstClearSize -= pesOffset;
+        } else if (firstEncSize >= pesOffset) {
+            // This can only be PES-level scrambling
+            firstEncSize -= pesOffset;
+        }
+    }
+
+    scrambledAccessUnit->meta()->setInt64("timeUs", timeUs);
+    if (isSync) {
+        scrambledAccessUnit->meta()->setInt32("isSync", 1);
+    }
+
+    // fill in CryptoInfo fields for AnotherPacketSource::read()
+    // MediaCas doesn't use cryptoMode, but set to non-zero value here.
+    scrambledAccessUnit->meta()->setInt32(
+            "cryptoMode", CryptoPlugin::kMode_AES_CTR);
+    scrambledAccessUnit->meta()->setInt32("cryptoKey", keyId);
+    scrambledAccessUnit->meta()->setBuffer("clearBytes", clearSizes);
+    scrambledAccessUnit->meta()->setBuffer("encBytes", encSizes);
+
+    memmove(mScrambledBuffer->data(),
+            mScrambledBuffer->data() + scrambledLength,
+            mScrambledBuffer->size() - scrambledLength);
+
+    mScrambledBuffer->setRange(0, mScrambledBuffer->size() - scrambledLength);
+
+    ALOGV("[stream %d] dequeued scrambled AU: timeUs=%lld, size=%zu",
+            mMode, (long long)timeUs, scrambledAccessUnit->size());
+
+    return scrambledAccessUnit;
+}
+
 sp<ABuffer> ElementaryStreamQueue::dequeueAccessUnit() {
-    if ((mFlags & kFlag_AlignedData) && mMode == H264) {
+    if ((mFlags & kFlag_AlignedData) && mMode == H264 && !isScrambled()) {
         if (mRangeInfos.empty()) {
             return NULL;
         }
@@ -517,6 +667,9 @@
     unsigned syncStartPos = 0;  // in bytes
     unsigned payloadSize = 0;
     sp<MetaData> format = new MetaData;
+
+    ALOGV("dequeueAccessUnit_AC3[%d]: mBuffer %p(%zu)", mAUIndex, mBuffer->data(), mBuffer->size());
+
     while (true) {
         if (syncStartPos + 2 >= mBuffer->size()) {
             return NULL;
@@ -529,6 +682,10 @@
         if (payloadSize > 0) {
             break;
         }
+
+        ALOGV("dequeueAccessUnit_AC3[%d]: syncStartPos %u payloadSize %u",
+                mAUIndex, syncStartPos, payloadSize);
+
         ++syncStartPos;
     }
 
@@ -541,14 +698,22 @@
         mFormat = format;
     }
 
-    sp<ABuffer> accessUnit = new ABuffer(syncStartPos + payloadSize);
-    memcpy(accessUnit->data(), mBuffer->data(), syncStartPos + payloadSize);
 
     int64_t timeUs = fetchTimestamp(syncStartPos + payloadSize);
     if (timeUs < 0ll) {
         ALOGE("negative timeUs");
         return NULL;
     }
+
+    // Not decrypting if key info not available (e.g., scanner/extractor parsing ts files)
+    if (mSampleDecryptor != NULL) {
+        mSampleDecryptor->processAC3(mBuffer->data() + syncStartPos, payloadSize);
+    }
+    mAUIndex++;
+
+    sp<ABuffer> accessUnit = new ABuffer(syncStartPos + payloadSize);
+    memcpy(accessUnit->data(), mBuffer->data(), syncStartPos + payloadSize);
+
     accessUnit->meta()->setInt64("timeUs", timeUs);
     accessUnit->meta()->setInt32("isSync", 1);
 
@@ -649,6 +814,17 @@
         return NULL;
     }
 
+    ALOGV("dequeueAccessUnit_AAC[%d]: mBuffer %zu info.mLength %zu",
+            mAUIndex, mBuffer->size(), info.mLength);
+
+    struct ADTSPosition {
+        size_t offset;
+        size_t headerSize;
+        size_t length;
+    };
+
+    Vector<ADTSPosition> frames;
+
     // The idea here is consume all AAC frames starting at offsets before
     // info.mLength so we can assign a meaningful timestamp without
     // having to interpolate.
@@ -669,7 +845,7 @@
             return NULL;
         }
         bits.skipBits(3);  // ID, layer
-        bool protection_absent __unused = bits.getBits(1) != 0;
+        bool protection_absent = bits.getBits(1) != 0;
 
         if (mFormat == NULL) {
             unsigned profile = bits.getBits(2);
@@ -736,11 +912,36 @@
             return NULL;
         }
 
-        size_t headerSize __unused = protection_absent ? 7 : 9;
+        size_t headerSize = protection_absent ? 7 : 9;
+
+        // tracking the frame positions first then decrypt only if an accessUnit to be generated
+        if (mSampleDecryptor != NULL) {
+            ADTSPosition frame = {
+                .offset     = offset,
+                .headerSize = headerSize,
+                .length     = aac_frame_length
+            };
+
+            frames.push(frame);
+        }
 
         offset += aac_frame_length;
     }
 
+    // Decrypting only if the loop didn't exit early and an accessUnit is about to be generated
+    // Not decrypting if key info not available (e.g., scanner/extractor parsing ts files)
+    if (mSampleDecryptor != NULL) {
+        for (size_t frameId = 0; frameId < frames.size(); frameId++) {
+            const ADTSPosition &frame = frames.itemAt(frameId);
+
+            mSampleDecryptor->processAAC(frame.headerSize,
+                    mBuffer->data() + frame.offset, frame.length);
+//            ALOGV("dequeueAccessUnitAAC[%zu]: while offset %zu headerSize %zu frame_len %zu",
+//                    frameId, frame.offset, frame.headerSize, frame.length);
+        }
+    }
+    mAUIndex++;
+
     int64_t timeUs = fetchTimestamp(offset);
 
     sp<ABuffer> accessUnit = new ABuffer(offset);
@@ -756,7 +957,8 @@
     return accessUnit;
 }
 
-int64_t ElementaryStreamQueue::fetchTimestamp(size_t size) {
+int64_t ElementaryStreamQueue::fetchTimestamp(
+        size_t size, int32_t *pesOffset, int32_t *pesScramblingControl) {
     int64_t timeUs = -1;
     bool first = true;
 
@@ -769,6 +971,12 @@
 
         if (first) {
             timeUs = info->mTimestampUs;
+            if (pesOffset != NULL) {
+                *pesOffset = info->mPesOffset;
+            }
+            if (pesScramblingControl != NULL) {
+                *pesScramblingControl = info->mPesScramblingControl;
+            }
             first = false;
         }
 
@@ -792,6 +1000,27 @@
 }
 
 sp<ABuffer> ElementaryStreamQueue::dequeueAccessUnitH264() {
+    if (isScrambled()) {
+        if (mBuffer == NULL || mBuffer->size() == 0) {
+            return NULL;
+        }
+        if (mFormat == NULL) {
+            mFormat = MakeAVCCodecSpecificData(mBuffer);
+            if (mFormat == NULL) {
+                ALOGI("Creating dummy AVC format for scrambled content");
+                mFormat = new MetaData;
+                mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
+                mFormat->setInt32(kKeyWidth, 1280);
+                mFormat->setInt32(kKeyHeight, 720);
+            }
+            // for MediaExtractor.CasInfo
+            mFormat->setInt32(kKeyCASystemID, mCASystemId);
+            mFormat->setData(kKeyCASessionID, 0,
+                    mCasSessionId.data(), mCasSessionId.size());
+        }
+        return dequeueScrambledAccessUnit();
+    }
+
     const uint8_t *data = mBuffer->data();
 
     size_t size = mBuffer->size();
@@ -805,6 +1034,9 @@
     size_t nalSize;
     bool foundSlice = false;
     bool foundIDR = false;
+
+    ALOGV("dequeueAccessUnit_H264[%d] %p/%zu", mAUIndex, data, size);
+
     while ((err = getNextNALUnit(&data, &size, &nalStart, &nalSize)) == OK) {
         if (nalSize == 0) continue;
 
@@ -816,6 +1048,7 @@
                 foundIDR = true;
             }
             if (foundSlice) {
+                //TODO: Shouldn't this have been called with nalSize-1?
                 ABitReader br(nalStart + 1, nalSize);
                 unsigned first_mb_in_slice = parseUE(&br);
 
@@ -856,6 +1089,7 @@
 
             size_t dstOffset = 0;
             size_t seiIndex = 0;
+            size_t shrunkBytes = 0;
             for (size_t i = 0; i < nals.size(); ++i) {
                 const NALPosition &pos = nals.itemAt(i);
 
@@ -882,11 +1116,30 @@
 
                 memcpy(accessUnit->data() + dstOffset, "\x00\x00\x00\x01", 4);
 
-                memcpy(accessUnit->data() + dstOffset + 4,
-                       mBuffer->data() + pos.nalOffset,
-                       pos.nalSize);
+                if (mSampleDecryptor != NULL && (nalType == 1 || nalType == 5)) {
+                    uint8_t *nalData = mBuffer->data() + pos.nalOffset;
+                    size_t newSize = mSampleDecryptor->processNal(nalData, pos.nalSize);
+                    // Note: the data can shrink due to unescaping
+                    memcpy(accessUnit->data() + dstOffset + 4,
+                            nalData,
+                            newSize);
+                    dstOffset += newSize + 4;
 
-                dstOffset += pos.nalSize + 4;
+                    size_t thisShrunkBytes = pos.nalSize - newSize;
+                    //ALOGV("dequeueAccessUnitH264[%d]: nalType: %d -> %zu (%zu)",
+                    //        nalType, (int)pos.nalSize, newSize, thisShrunkBytes);
+
+                    shrunkBytes += thisShrunkBytes;
+                }
+                else {
+                    memcpy(accessUnit->data() + dstOffset + 4,
+                            mBuffer->data() + pos.nalOffset,
+                            pos.nalSize);
+
+                    dstOffset += pos.nalSize + 4;
+                    //ALOGV("dequeueAccessUnitH264 [%d] %d @%d",
+                    //        nalType, (int)pos.nalSize, (int)pos.nalOffset);
+                }
             }
 
 #if !LOG_NDEBUG
@@ -917,6 +1170,18 @@
                 mFormat = MakeAVCCodecSpecificData(accessUnit);
             }
 
+            if (mSampleDecryptor != NULL && shrunkBytes > 0) {
+                size_t adjustedSize = accessUnit->size() - shrunkBytes;
+                ALOGV("dequeueAccessUnitH264[%d]: AU size adjusted %zu -> %zu",
+                        mAUIndex, accessUnit->size(), adjustedSize);
+                accessUnit->setRange(0, adjustedSize);
+            }
+
+            ALOGV("dequeueAccessUnitH264[%d]: AU %p(%zu) dstOffset:%zu, nals:%zu, totalSize:%zu ",
+                    mAUIndex, accessUnit->data(), accessUnit->size(),
+                    dstOffset, nals.size(), totalSize);
+            mAUIndex++;
+
             return accessUnit;
         }
 
@@ -1050,6 +1315,25 @@
 }
 
 sp<ABuffer> ElementaryStreamQueue::dequeueAccessUnitMPEGVideo() {
+    if (isScrambled()) {
+        if (mBuffer == NULL || mBuffer->size() == 0) {
+            return NULL;
+        }
+        if (mFormat == NULL) {
+            ALOGI("Creating dummy MPEG format for scrambled content");
+            mFormat = new MetaData;
+            mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
+            mFormat->setInt32(kKeyWidth, 1280);
+            mFormat->setInt32(kKeyHeight, 720);
+
+            // for MediaExtractor.CasInfo
+            mFormat->setInt32(kKeyCASystemID, mCASystemId);
+            mFormat->setData(kKeyCASessionID, 0,
+                    mCasSessionId.data(), mCasSessionId.size());
+        }
+        return dequeueScrambledAccessUnit();
+    }
+
     const uint8_t *data = mBuffer->data();
     size_t size = mBuffer->size();
 
@@ -1428,4 +1712,15 @@
     return accessUnit;
 }
 
+void ElementaryStreamQueue::signalNewSampleAesKey(const sp<AMessage> &keyItem) {
+    if (mSampleDecryptor == NULL) {
+        ALOGE("signalNewSampleAesKey: Stream %x is not encrypted; keyItem: %p",
+                mMode, keyItem.get());
+        return;
+    }
+
+    mSampleDecryptor->signalNewSampleAesKey(keyItem);
+}
+
+
 }  // namespace android
diff --git a/media/libstagefright/mpeg2ts/ESQueue.h b/media/libstagefright/mpeg2ts/ESQueue.h
index e9f96b7..ffcb502 100644
--- a/media/libstagefright/mpeg2ts/ESQueue.h
+++ b/media/libstagefright/mpeg2ts/ESQueue.h
@@ -19,9 +19,13 @@
 #define ES_QUEUE_H_
 
 #include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/foundation/AMessage.h>
 #include <utils/Errors.h>
 #include <utils/List.h>
 #include <utils/RefBase.h>
+#include <vector>
+
+#include "HlsSampleDecryptor.h"
 
 namespace android {
 
@@ -30,6 +34,7 @@
 
 struct ElementaryStreamQueue {
     enum Mode {
+        INVALID = 0,
         H264,
         AAC,
         AC3,
@@ -43,10 +48,20 @@
     enum Flags {
         // Data appended to the queue is always at access unit boundaries.
         kFlag_AlignedData = 1,
+        kFlag_ScrambledData = 2,
+        kFlag_SampleEncryptedData = 4,
     };
-    ElementaryStreamQueue(Mode mode, uint32_t flags = 0);
+    explicit ElementaryStreamQueue(Mode mode, uint32_t flags = 0);
 
-    status_t appendData(const void *data, size_t size, int64_t timeUs);
+    status_t appendData(const void *data, size_t size,
+            int64_t timeUs, int32_t payloadOffset = 0,
+            uint32_t pesScramblingControl = 0);
+
+    void appendScrambledData(
+            const void *data, size_t size,
+            int32_t keyId, bool isSync,
+            sp<ABuffer> clearSizes, sp<ABuffer> encSizes);
+
     void signalEOS();
     void clear(bool clearFormat);
 
@@ -54,10 +69,27 @@
 
     sp<MetaData> getFormat();
 
+    bool isScrambled() const;
+
+    void setCasInfo(int32_t systemId, const std::vector<uint8_t> &sessionId);
+
+    void signalNewSampleAesKey(const sp<AMessage> &keyItem);
+
 private:
     struct RangeInfo {
         int64_t mTimestampUs;
         size_t mLength;
+        int32_t mPesOffset;
+        uint32_t mPesScramblingControl;
+    };
+
+    struct ScrambledRangeInfo {
+        //int64_t mTimestampUs;
+        size_t mLength;
+        int32_t mKeyId;
+        int32_t mIsSync;
+        sp<ABuffer> mClearSizes;
+        sp<ABuffer> mEncSizes;
     };
 
     Mode mMode;
@@ -67,8 +99,20 @@
     sp<ABuffer> mBuffer;
     List<RangeInfo> mRangeInfos;
 
+    sp<ABuffer> mScrambledBuffer;
+    List<ScrambledRangeInfo> mScrambledRangeInfos;
+    int32_t mCASystemId;
+    std::vector<uint8_t> mCasSessionId;
+
     sp<MetaData> mFormat;
 
+    sp<HlsSampleDecryptor> mSampleDecryptor;
+    int mAUIndex;
+
+    bool isSampleEncrypted() const {
+        return (mFlags & kFlag_SampleEncryptedData) != 0;
+    }
+
     sp<ABuffer> dequeueAccessUnitH264();
     sp<ABuffer> dequeueAccessUnitAAC();
     sp<ABuffer> dequeueAccessUnitAC3();
@@ -80,7 +124,11 @@
 
     // consume a logical (compressed) access unit of size "size",
     // returns its timestamp in us (or -1 if no time information).
-    int64_t fetchTimestamp(size_t size);
+    int64_t fetchTimestamp(size_t size,
+            int32_t *pesOffset = NULL,
+            int32_t *pesScramblingControl = NULL);
+
+    sp<ABuffer> dequeueScrambledAccessUnit();
 
     DISALLOW_EVIL_CONSTRUCTORS(ElementaryStreamQueue);
 };
diff --git a/media/libstagefright/mpeg2ts/HlsSampleDecryptor.cpp b/media/libstagefright/mpeg2ts/HlsSampleDecryptor.cpp
new file mode 100644
index 0000000..e32f676
--- /dev/null
+++ b/media/libstagefright/mpeg2ts/HlsSampleDecryptor.cpp
@@ -0,0 +1,336 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "HlsSampleDecryptor"
+
+#include "HlsSampleDecryptor.h"
+
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/Utils.h>
+
+
+namespace android {
+
+HlsSampleDecryptor::HlsSampleDecryptor()
+    : mValidKeyInfo(false) {
+}
+
+HlsSampleDecryptor::HlsSampleDecryptor(const sp<AMessage> &sampleAesKeyItem)
+    : mValidKeyInfo(false) {
+
+    signalNewSampleAesKey(sampleAesKeyItem);
+}
+
+void HlsSampleDecryptor::signalNewSampleAesKey(const sp<AMessage> &sampleAesKeyItem) {
+
+    if (sampleAesKeyItem == NULL) {
+        mValidKeyInfo = false;
+        ALOGW("signalNewSampleAesKey: sampleAesKeyItem is NULL");
+        return;
+    }
+
+    sp<ABuffer> keyDataBuffer, initVecBuffer;
+    sampleAesKeyItem->findBuffer("keyData", &keyDataBuffer);
+    sampleAesKeyItem->findBuffer("initVec", &initVecBuffer);
+
+    if (keyDataBuffer != NULL && keyDataBuffer->size() == AES_BLOCK_SIZE &&
+        initVecBuffer != NULL && initVecBuffer->size() == AES_BLOCK_SIZE) {
+
+        ALOGV("signalNewSampleAesKey: Key: %s  IV: %s",
+              aesBlockToStr(keyDataBuffer->data()).c_str(),
+              aesBlockToStr(initVecBuffer->data()).c_str());
+
+        uint8_t KeyData[AES_BLOCK_SIZE];
+        memcpy(KeyData, keyDataBuffer->data(), AES_BLOCK_SIZE);
+        memcpy(mAESInitVec, initVecBuffer->data(), AES_BLOCK_SIZE);
+
+        mValidKeyInfo = (AES_set_decrypt_key(KeyData, 8*AES_BLOCK_SIZE/*128*/, &mAesKey) == 0);
+        if (!mValidKeyInfo) {
+            ALOGE("signalNewSampleAesKey: failed to set AES decryption key.");
+        }
+
+    } else {
+        // Media scanner might try extract/parse the TS files without knowing the key.
+        // Otherwise, shouldn't get here (unless an invalid playlist has swaped SAMPLE-AES with
+        // NONE method while still sample-encrypted stream is parsed).
+
+        mValidKeyInfo = false;
+        ALOGE("signalNewSampleAesKey Can't decrypt; keyDataBuffer: %p(%zu) initVecBuffer: %p(%zu)",
+              keyDataBuffer.get(), (keyDataBuffer.get() == NULL)? -1 : keyDataBuffer->size(),
+              initVecBuffer.get(), (initVecBuffer.get() == NULL)? -1 : initVecBuffer->size());
+    }
+}
+
+size_t HlsSampleDecryptor::processNal(uint8_t *nalData, size_t nalSize) {
+
+    unsigned nalType = nalData[0] & 0x1f;
+    if (!mValidKeyInfo) {
+        ALOGV("processNal[%d]: (%p)/%zu Skipping due to invalid key", nalType, nalData, nalSize);
+        return nalSize;
+    }
+
+    bool isEncrypted = (nalSize > VIDEO_CLEAR_LEAD + AES_BLOCK_SIZE);
+    ALOGV("processNal[%d]: (%p)/%zu isEncrypted: %d", nalType, nalData, nalSize, isEncrypted);
+
+    if (isEncrypted) {
+        // Encrypted NALUs have extra start code emulation prevention that must be
+        // stripped out before we can decrypt it.
+        size_t newSize = unescapeStream(nalData, nalSize);
+
+        ALOGV("processNal:unescapeStream[%d]: %zu -> %zu", nalType, nalSize, newSize);
+        nalSize = newSize;
+
+        //Encrypted_nal_unit () {
+        //    nal_unit_type_byte                // 1 byte
+        //    unencrypted_leader                // 31 bytes
+        //    while (bytes_remaining() > 0) {
+        //        if (bytes_remaining() > 16) {
+        //            encrypted_block           // 16 bytes
+        //        }
+        //        unencrypted_block           // MIN(144, bytes_remaining()) bytes
+        //    }
+        //}
+
+        size_t offset = VIDEO_CLEAR_LEAD;
+        size_t remainingBytes = nalSize - VIDEO_CLEAR_LEAD;
+
+        // a copy of initVec as decryptBlock updates it
+        unsigned char AESInitVec[AES_BLOCK_SIZE];
+        memcpy(AESInitVec, mAESInitVec, AES_BLOCK_SIZE);
+
+        while (remainingBytes > 0) {
+            // encrypted_block: protected block uses 10% skip encryption
+            if (remainingBytes > AES_BLOCK_SIZE) {
+                uint8_t *encrypted = nalData + offset;
+                status_t ret = decryptBlock(encrypted, AES_BLOCK_SIZE, AESInitVec);
+                if (ret != OK) {
+                    ALOGE("processNal failed with %d", ret);
+                    return nalSize; // revisit this
+                }
+
+                offset += AES_BLOCK_SIZE;
+                remainingBytes -= AES_BLOCK_SIZE;
+            }
+
+            // unencrypted_block
+            size_t clearBytes = std::min(remainingBytes, (size_t)(9 * AES_BLOCK_SIZE));
+
+            offset += clearBytes;
+            remainingBytes -= clearBytes;
+        } // while
+
+    } else { // isEncrypted == false
+        ALOGV("processNal[%d]: Unencrypted NALU  (%p)/%zu", nalType, nalData, nalSize);
+    }
+
+    return nalSize;
+}
+
+void HlsSampleDecryptor::processAAC(size_t adtsHdrSize, uint8_t *data, size_t size) {
+
+    if (!mValidKeyInfo) {
+        ALOGV("processAAC: (%p)/%zu Skipping due to invalid key", data, size);
+        return;
+    }
+
+    // ADTS header is included in the size
+    size_t offset = adtsHdrSize;
+    size_t remainingBytes = size - adtsHdrSize;
+
+    bool isEncrypted = (remainingBytes >= AUDIO_CLEAR_LEAD + AES_BLOCK_SIZE);
+    ALOGV("processAAC: header: %zu data: %p(%zu) isEncrypted: %d",
+          adtsHdrSize, data, size, isEncrypted);
+
+    //Encrypted_AAC_Frame () {
+    //    ADTS_Header                        // 7 or 9 bytes
+    //    unencrypted_leader                 // 16 bytes
+    //    while (bytes_remaining() >= 16) {
+    //        encrypted_block                // 16 bytes
+    //    }
+    //    unencrypted_trailer                // 0-15 bytes
+    //}
+
+    // with lead bytes
+    if (remainingBytes >= AUDIO_CLEAR_LEAD) {
+        offset += AUDIO_CLEAR_LEAD;
+        remainingBytes -= AUDIO_CLEAR_LEAD;
+
+        // encrypted_block
+        if (remainingBytes >= AES_BLOCK_SIZE) {
+
+            size_t encryptedBytes = (remainingBytes / AES_BLOCK_SIZE) * AES_BLOCK_SIZE;
+            unsigned char AESInitVec[AES_BLOCK_SIZE];
+            memcpy(AESInitVec, mAESInitVec, AES_BLOCK_SIZE);
+
+            // decrypting all blocks at once
+            uint8_t *encrypted = data + offset;
+            status_t ret = decryptBlock(encrypted, encryptedBytes, AESInitVec);
+            if (ret != OK) {
+                ALOGE("processAAC: decryptBlock failed with %d", ret);
+                return;
+            }
+
+            offset += encryptedBytes;
+            remainingBytes -= encryptedBytes;
+        } // encrypted
+
+        // unencrypted_trailer
+        size_t clearBytes = remainingBytes;
+        if (clearBytes > 0) {
+            CHECK(clearBytes < AES_BLOCK_SIZE);
+        }
+
+    } else { // without lead bytes
+        ALOGV("processAAC: Unencrypted frame (without lead bytes) size %zu = %zu (hdr) + %zu (rem)",
+              size, adtsHdrSize, remainingBytes);
+    }
+
+}
+
+void HlsSampleDecryptor::processAC3(uint8_t *data, size_t size) {
+
+    if (!mValidKeyInfo) {
+        ALOGV("processAC3: (%p)/%zu Skipping due to invalid key", data, size);
+        return;
+    }
+
+    bool isEncrypted = (size >= AUDIO_CLEAR_LEAD + AES_BLOCK_SIZE);
+    ALOGV("processAC3 %p(%zu) isEncrypted: %d", data, size, isEncrypted);
+
+    //Encrypted_AC3_Frame () {
+    //    unencrypted_leader                 // 16 bytes
+    //    while (bytes_remaining() >= 16) {
+    //        encrypted_block                // 16 bytes
+    //    }
+    //    unencrypted_trailer                // 0-15 bytes
+    //}
+
+    if (size >= AUDIO_CLEAR_LEAD) {
+        // unencrypted_leader
+        size_t offset = AUDIO_CLEAR_LEAD;
+        size_t remainingBytes = size - AUDIO_CLEAR_LEAD;
+
+        if (remainingBytes >= AES_BLOCK_SIZE) {
+
+            size_t encryptedBytes = (remainingBytes / AES_BLOCK_SIZE) * AES_BLOCK_SIZE;
+
+            // encrypted_block
+            unsigned char AESInitVec[AES_BLOCK_SIZE];
+            memcpy(AESInitVec, mAESInitVec, AES_BLOCK_SIZE);
+
+            // decrypting all blocks at once
+            uint8_t *encrypted = data + offset;
+            status_t ret = decryptBlock(encrypted, encryptedBytes, AESInitVec);
+            if (ret != OK) {
+                ALOGE("processAC3: decryptBlock failed with %d", ret);
+                return;
+            }
+
+            offset += encryptedBytes;
+            remainingBytes -= encryptedBytes;
+        } // encrypted
+
+        // unencrypted_trailer
+        size_t clearBytes = remainingBytes;
+        if (clearBytes > 0) {
+            CHECK(clearBytes < AES_BLOCK_SIZE);
+        }
+
+    } else {
+        ALOGV("processAC3: Unencrypted frame (without lead bytes) size %zu", size);
+    }
+}
+
+// Unescapes data replacing occurrences of [0, 0, 3] with [0, 0] and returns the new size
+size_t HlsSampleDecryptor::unescapeStream(uint8_t *data, size_t limit) const {
+    Vector<size_t> scratchEscapePositions;
+    size_t position = 0;
+
+    while (position < limit) {
+        position = findNextUnescapeIndex(data, position, limit);
+        if (position < limit) {
+            scratchEscapePositions.add(position);
+            position += 3;
+        }
+    }
+
+    size_t scratchEscapeCount = scratchEscapePositions.size();
+    size_t escapedPosition = 0; // The position being read from.
+    size_t unescapedPosition = 0; // The position being written to.
+    for (size_t i = 0; i < scratchEscapeCount; i++) {
+        size_t nextEscapePosition = scratchEscapePositions[i];
+        //TODO: add 2 and get rid of the later = 0 assignments
+        size_t copyLength = nextEscapePosition - escapedPosition;
+        memmove(data+unescapedPosition, data+escapedPosition, copyLength);
+        unescapedPosition += copyLength;
+        data[unescapedPosition++] = 0;
+        data[unescapedPosition++] = 0;
+        escapedPosition += copyLength + 3;
+    }
+
+    size_t unescapedLength = limit - scratchEscapeCount;
+    size_t remainingLength = unescapedLength - unescapedPosition;
+    memmove(data+unescapedPosition, data+escapedPosition, remainingLength);
+
+    return unescapedLength;
+}
+
+size_t HlsSampleDecryptor::findNextUnescapeIndex(uint8_t *data, size_t offset, size_t limit) const {
+    for (size_t i = offset; i < limit - 2; i++) {
+        //TODO: speed
+        if (data[i] == 0x00 && data[i + 1] == 0x00 && data[i + 2] == 0x03) {
+            return i;
+        }
+    }
+    return limit;
+}
+
+status_t HlsSampleDecryptor::decryptBlock(uint8_t *buffer, size_t size,
+        uint8_t AESInitVec[AES_BLOCK_SIZE]) {
+    if (size == 0) {
+        return OK;
+    }
+
+    if ((size % AES_BLOCK_SIZE) != 0) {
+        ALOGE("decryptBlock: size (%zu) not a multiple of block size", size);
+        return ERROR_MALFORMED;
+    }
+
+    ALOGV("decryptBlock: %p (%zu)", buffer, size);
+
+    AES_cbc_encrypt(buffer, buffer, size, &mAesKey, AESInitVec, AES_DECRYPT);
+
+    return OK;
+}
+
+AString HlsSampleDecryptor::aesBlockToStr(uint8_t block[AES_BLOCK_SIZE]) {
+    AString result;
+
+    if (block == NULL) {
+        result = AString("null");
+    } else {
+        result = AStringPrintf("0x%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
+            block[0], block[1], block[2], block[3], block[4], block[5], block[6], block[7],
+            block[8], block[9], block[10], block[11], block[12], block[13], block[14], block[15]);
+    }
+
+    return result;
+}
+
+
+}  // namespace android
diff --git a/media/libstagefright/mpeg2ts/HlsSampleDecryptor.h b/media/libstagefright/mpeg2ts/HlsSampleDecryptor.h
new file mode 100644
index 0000000..2c76620
--- /dev/null
+++ b/media/libstagefright/mpeg2ts/HlsSampleDecryptor.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SAMPLE_AES_PROCESSOR_H_
+
+#define SAMPLE_AES_PROCESSOR_H_
+
+#include <media/stagefright/foundation/AMessage.h>
+#include <media/stagefright/foundation/AString.h>
+
+#include <openssl/aes.h>
+
+#include <utils/Errors.h>
+#include <utils/List.h>
+#include <utils/RefBase.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+struct HlsSampleDecryptor : RefBase {
+
+    HlsSampleDecryptor();
+    explicit HlsSampleDecryptor(const sp<AMessage> &sampleAesKeyItem);
+
+    void signalNewSampleAesKey(const sp<AMessage> &sampleAesKeyItem);
+
+    size_t processNal(uint8_t *nalData, size_t nalSize);
+    void processAAC(size_t adtsHdrSize, uint8_t *data, size_t size);
+    void processAC3(uint8_t *data, size_t size);
+
+    static AString aesBlockToStr(uint8_t block[AES_BLOCK_SIZE]);
+
+private:
+    size_t unescapeStream(uint8_t *data, size_t limit) const;
+    size_t findNextUnescapeIndex(uint8_t *data, size_t offset, size_t limit) const;
+    status_t decryptBlock(uint8_t *buffer, size_t size, uint8_t AESInitVec[AES_BLOCK_SIZE]);
+
+    static const int VIDEO_CLEAR_LEAD = 32;
+    static const int AUDIO_CLEAR_LEAD = 16;
+
+    AES_KEY mAesKey;
+    uint8_t mAESInitVec[AES_BLOCK_SIZE];
+    bool mValidKeyInfo;
+
+    DISALLOW_EVIL_CONSTRUCTORS(HlsSampleDecryptor);
+};
+
+}  // namespace android
+
+#endif // SAMPLE_AES_PROCESSOR_H_
diff --git a/media/libstagefright/mpeg2ts/MPEG2TSExtractor.cpp b/media/libstagefright/mpeg2ts/MPEG2TSExtractor.cpp
index fb5e079..c3f1274 100644
--- a/media/libstagefright/mpeg2ts/MPEG2TSExtractor.cpp
+++ b/media/libstagefright/mpeg2ts/MPEG2TSExtractor.cpp
@@ -26,6 +26,7 @@
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
+#include <media/stagefright/foundation/AUtils.h>
 #include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
@@ -40,6 +41,8 @@
 namespace android {
 
 static const size_t kTSPacketSize = 188;
+static const int kMaxDurationReadSize = 250000LL;
+static const int kMaxDurationRetry = 6;
 
 struct MPEG2TSSource : public MediaSource {
     MPEG2TSSource(
@@ -145,12 +148,46 @@
     return meta;
 }
 
+//static
+bool MPEG2TSExtractor::isScrambledFormat(const sp<MetaData> &format) {
+    const char *mime;
+    return format->findCString(kKeyMIMEType, &mime)
+            && (!strcasecmp(MEDIA_MIMETYPE_VIDEO_SCRAMBLED, mime)
+                    || !strcasecmp(MEDIA_MIMETYPE_AUDIO_SCRAMBLED, mime));
+}
+
+status_t MPEG2TSExtractor::setMediaCas(const sp<ICas> &cas) {
+    ALOGD("setMediaCas: %p", cas.get());
+
+    status_t err = mParser->setMediaCas(cas);
+    if (err == OK) {
+        ALOGI("All tracks now have descramblers");
+        init();
+    }
+    return err;
+}
+
+void MPEG2TSExtractor::addSource(const sp<AnotherPacketSource> &impl) {
+    bool found = false;
+    for (size_t i = 0; i < mSourceImpls.size(); i++) {
+        if (mSourceImpls[i] == impl) {
+            found = true;
+            break;
+        }
+    }
+    if (!found) {
+        mSourceImpls.push(impl);
+    }
+}
+
 void MPEG2TSExtractor::init() {
     bool haveAudio = false;
     bool haveVideo = false;
     int64_t startTime = ALooper::GetNowUs();
 
-    while (feedMore(true /* isInit */) == OK) {
+    status_t err;
+    while ((err = feedMore(true /* isInit */)) == OK
+            || err == ERROR_DRM_DECRYPT_UNIT_NOT_INITIALIZED) {
         if (haveAudio && haveVideo) {
             addSyncPoint_l(mLastSyncEvent);
             mLastSyncEvent.reset();
@@ -162,10 +199,15 @@
                         ATSParser::VIDEO).get();
 
             if (impl != NULL) {
-                haveVideo = true;
-                mSourceImpls.push(impl);
-                mSyncPoints.push();
-                mSeekSyncPoints = &mSyncPoints.editTop();
+                sp<MetaData> format = impl->getFormat();
+                if (format != NULL) {
+                    haveVideo = true;
+                    addSource(impl);
+                    if (!isScrambledFormat(format)) {
+                        mSyncPoints.push();
+                        mSeekSyncPoints = &mSyncPoints.editTop();
+                    }
+                }
             }
         }
 
@@ -175,11 +217,16 @@
                         ATSParser::AUDIO).get();
 
             if (impl != NULL) {
-                haveAudio = true;
-                mSourceImpls.push(impl);
-                mSyncPoints.push();
-                if (!haveVideo) {
-                    mSeekSyncPoints = &mSyncPoints.editTop();
+                sp<MetaData> format = impl->getFormat();
+                if (format != NULL) {
+                    haveAudio = true;
+                    addSource(impl);
+                    if (!isScrambledFormat(format)) {
+                        mSyncPoints.push();
+                        if (!haveVideo) {
+                            mSeekSyncPoints = &mSyncPoints.editTop();
+                        }
+                    }
                 }
             }
         }
@@ -187,6 +234,16 @@
         addSyncPoint_l(mLastSyncEvent);
         mLastSyncEvent.reset();
 
+        // ERROR_DRM_DECRYPT_UNIT_NOT_INITIALIZED is returned when the mpeg2ts
+        // is scrambled but we don't have a MediaCas object set. The extraction
+        // will only continue when setMediaCas() is called successfully.
+        if (err == ERROR_DRM_DECRYPT_UNIT_NOT_INITIALIZED) {
+            ALOGI("stopped parsing scrambled content, "
+                  "haveAudio=%d, haveVideo=%d, elaspedTime=%" PRId64,
+                    haveAudio, haveVideo, ALooper::GetNowUs() - startTime);
+            return;
+        }
+
         // Wait only for 2 seconds to detect audio/video streams.
         if (ALooper::GetNowUs() - startTime > 2000000ll) {
             break;
@@ -212,23 +269,22 @@
                         - mSeekSyncPoints->keyAt(0);
                 off64_t diffOffset = mSeekSyncPoints->valueAt(prevSyncSize - 1)
                         - mSeekSyncPoints->valueAt(0);
-                durationUs = size * diffUs / diffOffset;
-                durations.push_back(durationUs);
+                int64_t currentDurationUs = size * diffUs / diffOffset;
+                durations.push_back(currentDurationUs);
                 if (durations.size() > 5) {
                     durations.erase(durations.begin());
                     int64_t min = *durations.begin();
                     int64_t max = *durations.begin();
-                    for (List<int64_t>::iterator i = durations.begin();
-                            i != durations.end();
-                            ++i) {
-                        if (min > *i) {
-                            min = *i;
+                    for (auto duration : durations) {
+                        if (min > duration) {
+                            min = duration;
                         }
-                        if (max < *i) {
-                            max = *i;
+                        if (max < duration) {
+                            max = duration;
                         }
                     }
                     if (max - min < 500 * 1000) {
+                        durationUs = currentDurationUs;
                         break;
                     }
                 }
@@ -244,6 +300,8 @@
             const sp<MetaData> meta = impl->getFormat();
             meta->setInt64(kKeyDuration, durationUs);
             impl->setFormat(meta);
+        } else {
+            estimateDurationsFromTimesUsAtEnd();
         }
     }
 
@@ -302,6 +360,106 @@
     }
 }
 
+status_t MPEG2TSExtractor::estimateDurationsFromTimesUsAtEnd()  {
+    if (!(mDataSource->flags() & DataSource::kIsLocalFileSource)) {
+        return ERROR_UNSUPPORTED;
+    }
+
+    off64_t size = 0;
+    status_t err = mDataSource->getSize(&size);
+    if (err != OK) {
+        return err;
+    }
+
+    uint8_t packet[kTSPacketSize];
+    const off64_t zero = 0;
+    off64_t offset = max(zero, size - kMaxDurationReadSize);
+    if (mDataSource->readAt(offset, &packet, 0) < 0) {
+        return ERROR_IO;
+    }
+
+    int retry = 0;
+    bool allDurationsFound = false;
+    int64_t timeAnchorUs = mParser->getFirstPTSTimeUs();
+    do {
+        int bytesRead = 0;
+        sp<ATSParser> parser = new ATSParser(ATSParser::TS_TIMESTAMPS_ARE_ABSOLUTE);
+        ATSParser::SyncEvent ev(0);
+        offset = max(zero, size - (kMaxDurationReadSize << retry));
+        offset = (offset / kTSPacketSize) * kTSPacketSize;
+        for (;;) {
+            if (bytesRead >= kMaxDurationReadSize << max(0, retry - 1)) {
+                break;
+            }
+
+            ssize_t n = mDataSource->readAt(offset, packet, kTSPacketSize);
+            if (n < 0) {
+                return n;
+            } else if (n < (ssize_t)kTSPacketSize) {
+                break;
+            }
+
+            offset += kTSPacketSize;
+            bytesRead += kTSPacketSize;
+            err = parser->feedTSPacket(packet, kTSPacketSize, &ev);
+            if (err != OK) {
+                return err;
+            }
+
+            if (ev.hasReturnedData()) {
+                int64_t durationUs = ev.getTimeUs();
+                ATSParser::SourceType type = ev.getType();
+                ev.reset();
+
+                int64_t firstTimeUs;
+                sp<AnotherPacketSource> src =
+                    (AnotherPacketSource *)mParser->getSource(type).get();
+                if (src == NULL || src->nextBufferTime(&firstTimeUs) != OK) {
+                    continue;
+                }
+                durationUs += src->getEstimatedBufferDurationUs();
+                durationUs -= timeAnchorUs;
+                durationUs -= firstTimeUs;
+                if (durationUs > 0) {
+                    int64_t origDurationUs, lastDurationUs;
+                    const sp<MetaData> meta = src->getFormat();
+                    const uint32_t kKeyLastDuration = 'ldur';
+                    // Require two consecutive duration calculations to be within 1 sec before
+                    // updating; use MetaData to store previous duration estimate in per-stream
+                    // context.
+                    if (!meta->findInt64(kKeyDuration, &origDurationUs)
+                            || !meta->findInt64(kKeyLastDuration, &lastDurationUs)
+                            || (origDurationUs < durationUs
+                             && abs(durationUs - lastDurationUs) < 60000000)) {
+                        meta->setInt64(kKeyDuration, durationUs);
+                    }
+                    meta->setInt64(kKeyLastDuration, durationUs);
+                }
+            }
+        }
+
+        if (!allDurationsFound) {
+            allDurationsFound = true;
+            for (auto t: {ATSParser::VIDEO, ATSParser::AUDIO}) {
+                sp<AnotherPacketSource> src = (AnotherPacketSource *)mParser->getSource(t).get();
+                if (src == NULL) {
+                    continue;
+                }
+                int64_t durationUs;
+                const sp<MetaData> meta = src->getFormat();
+                if (!meta->findInt64(kKeyDuration, &durationUs)) {
+                    allDurationsFound = false;
+                    break;
+                }
+            }
+        }
+
+        ++retry;
+    } while(!allDurationsFound && offset > 0 && retry <= kMaxDurationRetry);
+
+    return allDurationsFound? OK : ERROR_UNSUPPORTED;
+}
+
 uint32_t MPEG2TSExtractor::flags() const {
     return CAN_PAUSE | CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD;
 }
diff --git a/media/libstagefright/omx/1.0/Conversion.h b/media/libstagefright/omx/1.0/Conversion.h
new file mode 100644
index 0000000..fd91574
--- /dev/null
+++ b/media/libstagefright/omx/1.0/Conversion.h
@@ -0,0 +1,2179 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
+
+#include <vector>
+#include <list>
+
+#include <unistd.h>
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <hidlmemory/mapping.h>
+
+#include <binder/Binder.h>
+#include <binder/Status.h>
+#include <ui/FenceTime.h>
+#include <media/OMXFenceParcelable.h>
+#include <cutils/native_handle.h>
+#include <gui/IGraphicBufferProducer.h>
+
+#include <media/OMXBuffer.h>
+#include <VideoAPI.h>
+
+#include <android/hidl/memory/1.0/IMemory.h>
+#include <android/hardware/graphics/bufferqueue/1.0/IProducerListener.h>
+#include <android/hardware/media/omx/1.0/types.h>
+#include <android/hardware/media/omx/1.0/IOmx.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IOmxBufferSource.h>
+#include <android/hardware/media/omx/1.0/IGraphicBufferSource.h>
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+
+#include <android/IGraphicBufferSource.h>
+#include <android/IOMXBufferSource.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::String8;
+using ::android::OMXFenceParcelable;
+
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::omx_message;
+
+using ::android::hardware::media::omx::V1_0::ColorAspects;
+using ::android::hardware::media::V1_0::Rect;
+using ::android::hardware::media::V1_0::Region;
+
+using ::android::hardware::graphics::common::V1_0::Dataspace;
+
+using ::android::hardware::graphics::common::V1_0::PixelFormat;
+
+using ::android::OMXBuffer;
+
+using ::android::hardware::media::V1_0::AnwBuffer;
+using ::android::GraphicBuffer;
+
+using ::android::hardware::media::omx::V1_0::IOmx;
+using ::android::IOMX;
+
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::IOMXNode;
+
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::IOMXObserver;
+
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::IOMXBufferSource;
+
+typedef ::android::hardware::graphics::bufferqueue::V1_0::IGraphicBufferProducer
+        HGraphicBufferProducer;
+typedef ::android::IGraphicBufferProducer
+        BGraphicBufferProducer;
+
+// native_handle_t helper functions.
+
+/**
+ * \brief Take an fd and create a native handle containing only the given fd.
+ * The created handle will need to be deleted manually with
+ * `native_handle_delete()`.
+ *
+ * \param[in] fd The source file descriptor (of type `int`).
+ * \return The create `native_handle_t*` that contains the given \p fd. If the
+ * supplied \p fd is negative, the created native handle will contain no file
+ * descriptors.
+ *
+ * If the native handle cannot be created, the return value will be
+ * `nullptr`.
+ *
+ * This function does not duplicate the file descriptor.
+ */
+inline native_handle_t* native_handle_create_from_fd(int fd) {
+    if (fd < 0) {
+        return native_handle_create(0, 0);
+    }
+    native_handle_t* nh = native_handle_create(1, 0);
+    if (nh == nullptr) {
+        return nullptr;
+    }
+    nh->data[0] = fd;
+    return nh;
+}
+
+/**
+ * \brief Extract a file descriptor from a native handle.
+ *
+ * \param[in] nh The source `native_handle_t*`.
+ * \param[in] index The index of the file descriptor in \p nh to read from. This
+ * input has the default value of `0`.
+ * \return The `index`-th file descriptor in \p nh. If \p nh does not have
+ * enough file descriptors, the returned value will be `-1`.
+ *
+ * This function does not duplicate the file descriptor.
+ */
+inline int native_handle_read_fd(native_handle_t const* nh, int index = 0) {
+    return ((nh == nullptr) || (nh->numFds == 0) ||
+            (nh->numFds <= index) || (index < 0)) ?
+            -1 : nh->data[index];
+}
+
+/**
+ * Conversion functions
+ * ====================
+ *
+ * There are two main directions of conversion:
+ * - `inTargetType(...)`: Create a wrapper whose lifetime depends on the
+ *   input. The wrapper has type `TargetType`.
+ * - `toTargetType(...)`: Create a standalone object of type `TargetType` that
+ *   corresponds to the input. The lifetime of the output does not depend on the
+ *   lifetime of the input.
+ * - `wrapIn(TargetType*, ...)`: Same as `inTargetType()`, but for `TargetType`
+ *   that cannot be copied and/or moved efficiently, or when there are multiple
+ *   output arguments.
+ * - `convertTo(TargetType*, ...)`: Same as `toTargetType()`, but for
+ *   `TargetType` that cannot be copied and/or moved efficiently, or when there
+ *   are multiple output arguments.
+ *
+ * `wrapIn()` and `convertTo()` functions will take output arguments before
+ * input arguments. Some of these functions might return a value to indicate
+ * success or error.
+ *
+ * In converting or wrapping something as a Treble type that contains a
+ * `hidl_handle`, `native_handle_t*` will need to be created and returned as
+ * an additional output argument, hence only `wrapIn()` or `convertTo()` would
+ * be available. The caller must call `native_handle_delete()` to deallocate the
+ * returned native handle when it is no longer needed.
+ *
+ * For types that contain file descriptors, `inTargetType()` and `wrapAs()` do
+ * not perform duplication of file descriptors, while `toTargetType()` and
+ * `convertTo()` do.
+ */
+
+/**
+ * \brief Convert `Return<void>` to `binder::Status`.
+ *
+ * \param[in] t The source `Return<void>`.
+ * \return The corresponding `binder::Status`.
+ */
+// convert: Return<void> -> ::android::binder::Status
+inline ::android::binder::Status toBinderStatus(
+        Return<void> const& t) {
+    return ::android::binder::Status::fromExceptionCode(
+            t.isOk() ? OK : UNKNOWN_ERROR,
+            t.description().c_str());
+}
+
+/**
+ * \brief Convert `Return<Status>` to `status_t`. This is for legacy binder
+ * calls.
+ *
+ * \param[in] t The source `Return<Status>`.
+ * \return The corresponding `status_t`.
+ *
+ * This function first check if \p t has a transport error. If it does, then the
+ * return value is the transport error code. Otherwise, the return value is
+ * converted from `Status` contained inside \p t.
+ *
+ * Note:
+ * - This `Status` is omx-specific. It is defined in `types.hal`.
+ * - The name of this function is not `convert`.
+ */
+// convert: Status -> status_t
+inline status_t toStatusT(Return<Status> const& t) {
+    return t.isOk() ? static_cast<status_t>(static_cast<Status>(t)) : UNKNOWN_ERROR;
+}
+
+/**
+ * \brief Convert `Return<void>` to `status_t`. This is for legacy binder calls.
+ *
+ * \param[in] t The source `Return<void>`.
+ * \return The corresponding `status_t`.
+ */
+// convert: Return<void> -> status_t
+inline status_t toStatusT(Return<void> const& t) {
+    return t.isOk() ? OK : UNKNOWN_ERROR;
+}
+
+/**
+ * \brief Convert `Status` to `status_t`. This is for legacy binder calls.
+ *
+ * \param[in] t The source `Status`.
+ * \return the corresponding `status_t`.
+ */
+// convert: Status -> status_t
+inline status_t toStatusT(Status const& t) {
+    return static_cast<status_t>(t);
+}
+
+/**
+ * \brief Convert `status_t` to `Status`.
+ *
+ * \param[in] l The source `status_t`.
+ * \return The corresponding `Status`.
+ */
+// convert: status_t -> Status
+inline Status toStatus(status_t l) {
+    return static_cast<Status>(l);
+}
+
+/**
+ * \brief Wrap `native_handle_t*` in `hidl_handle`.
+ *
+ * \param[in] nh The source `native_handle_t*`.
+ * \return The `hidl_handle` that points to \p nh.
+ */
+// wrap: native_handle_t* -> hidl_handle
+inline hidl_handle inHidlHandle(native_handle_t const* nh) {
+    return hidl_handle(nh);
+}
+
+/**
+ * \brief Wrap an `omx_message` and construct the corresponding `Message`.
+ *
+ * \param[out] t The wrapper of type `Message`.
+ * \param[out] nh The native_handle_t referred to by `t->fence`.
+ * \param[in] l The source `omx_message`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ *
+ * Upon success, \p nh will be created to hold the file descriptor stored in
+ * `l.fenceFd`, and `t->fence` will point to \p nh. \p nh will need to be
+ * destroyed manually by `native_handle_delete()` when \p t is no longer needed.
+ *
+ * Upon failure, \p nh will not be created and will not need to be deleted. \p t
+ * will be invalid.
+ */
+// wrap, omx_message -> Message, native_handle_t*
+inline bool wrapAs(Message* t, native_handle_t** nh, omx_message const& l) {
+    *nh = native_handle_create_from_fd(l.fenceFd);
+    if (!*nh) {
+        return false;
+    }
+    t->fence = *nh;
+    switch (l.type) {
+        case omx_message::EVENT:
+            t->type = Message::Type::EVENT;
+            t->data.eventData.event = uint32_t(l.u.event_data.event);
+            t->data.eventData.data1 = l.u.event_data.data1;
+            t->data.eventData.data2 = l.u.event_data.data2;
+            t->data.eventData.data3 = l.u.event_data.data3;
+            t->data.eventData.data4 = l.u.event_data.data4;
+            break;
+        case omx_message::EMPTY_BUFFER_DONE:
+            t->type = Message::Type::EMPTY_BUFFER_DONE;
+            t->data.bufferData.buffer = l.u.buffer_data.buffer;
+            break;
+        case omx_message::FILL_BUFFER_DONE:
+            t->type = Message::Type::FILL_BUFFER_DONE;
+            t->data.extendedBufferData.buffer = l.u.extended_buffer_data.buffer;
+            t->data.extendedBufferData.rangeOffset =
+                    l.u.extended_buffer_data.range_offset;
+            t->data.extendedBufferData.rangeLength =
+                    l.u.extended_buffer_data.range_length;
+            t->data.extendedBufferData.flags = l.u.extended_buffer_data.flags;
+            t->data.extendedBufferData.timestampUs =
+                    l.u.extended_buffer_data.timestamp;
+            break;
+        case omx_message::FRAME_RENDERED:
+            t->type = Message::Type::FRAME_RENDERED;
+            t->data.renderData.timestampUs = l.u.render_data.timestamp;
+            t->data.renderData.systemTimeNs = l.u.render_data.nanoTime;
+            break;
+        default:
+            native_handle_delete(*nh);
+            return false;
+    }
+    return true;
+}
+
+/**
+ * \brief Wrap a `Message` inside an `omx_message`.
+ *
+ * \param[out] l The wrapper of type `omx_message`.
+ * \param[in] t The source `Message`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ */
+// wrap: Message -> omx_message
+inline bool wrapAs(omx_message* l, Message const& t) {
+    l->fenceFd = native_handle_read_fd(t.fence);
+    switch (t.type) {
+        case Message::Type::EVENT:
+            l->type = omx_message::EVENT;
+            l->u.event_data.event = OMX_EVENTTYPE(t.data.eventData.event);
+            l->u.event_data.data1 = t.data.eventData.data1;
+            l->u.event_data.data2 = t.data.eventData.data2;
+            l->u.event_data.data3 = t.data.eventData.data3;
+            l->u.event_data.data4 = t.data.eventData.data4;
+            break;
+        case Message::Type::EMPTY_BUFFER_DONE:
+            l->type = omx_message::EMPTY_BUFFER_DONE;
+            l->u.buffer_data.buffer = t.data.bufferData.buffer;
+            break;
+        case Message::Type::FILL_BUFFER_DONE:
+            l->type = omx_message::FILL_BUFFER_DONE;
+            l->u.extended_buffer_data.buffer = t.data.extendedBufferData.buffer;
+            l->u.extended_buffer_data.range_offset =
+                    t.data.extendedBufferData.rangeOffset;
+            l->u.extended_buffer_data.range_length =
+                    t.data.extendedBufferData.rangeLength;
+            l->u.extended_buffer_data.flags = t.data.extendedBufferData.flags;
+            l->u.extended_buffer_data.timestamp =
+                    t.data.extendedBufferData.timestampUs;
+            break;
+        case Message::Type::FRAME_RENDERED:
+            l->type = omx_message::FRAME_RENDERED;
+            l->u.render_data.timestamp = t.data.renderData.timestampUs;
+            l->u.render_data.nanoTime = t.data.renderData.systemTimeNs;
+            break;
+        default:
+            return false;
+    }
+    return true;
+}
+
+/**
+ * \brief Similar to `wrapTo(omx_message*, Message const&)`, but the output will
+ * have an extended lifetime.
+ *
+ * \param[out] l The output `omx_message`.
+ * \param[in] t The source `Message`.
+ * \return `true` if the conversion is successful; `false` otherwise.
+ *
+ * This function calls `wrapto()`, then attempts to duplicate the file
+ * descriptor for the fence if it is not `-1`. If duplication fails, `false`
+ * will be returned.
+ */
+// convert: Message -> omx_message
+inline bool convertTo(omx_message* l, Message const& t) {
+    if (!wrapAs(l, t)) {
+        return false;
+    }
+    if (l->fenceFd == -1) {
+        return true;
+    }
+    l->fenceFd = dup(l->fenceFd);
+    return l->fenceFd != -1;
+}
+
+/**
+ * \brief Wrap an `OMXFenceParcelable` inside a `hidl_handle`.
+ *
+ * \param[out] t The wrapper of type `hidl_handle`.
+ * \param[out] nh The native handle created to hold the file descriptor inside
+ * \p l.
+ * \param[in] l The source `OMXFenceParcelable`, which essentially contains one
+ * file descriptor.
+ * \return `true` if \p t and \p nh are successfully created to wrap around \p
+ * l; `false` otherwise.
+ *
+ * On success, \p nh needs to be deleted by the caller with
+ * `native_handle_delete()` after \p t and \p nh are no longer needed.
+ *
+ * On failure, \p nh will not need to be deleted, and \p t will hold an invalid
+ * value.
+ */
+// wrap: OMXFenceParcelable -> hidl_handle, native_handle_t*
+inline bool wrapAs(hidl_handle* t, native_handle_t** nh,
+        OMXFenceParcelable const& l) {
+    *nh = native_handle_create_from_fd(l.get());
+    if (!*nh) {
+        return false;
+    }
+    *t = *nh;
+    return true;
+}
+
+/**
+ * \brief Wrap a `hidl_handle` inside an `OMXFenceParcelable`.
+ *
+ * \param[out] l The wrapper of type `OMXFenceParcelable`.
+ * \param[in] t The source `hidl_handle`.
+ */
+// wrap: hidl_handle -> OMXFenceParcelable
+inline void wrapAs(OMXFenceParcelable* l, hidl_handle const& t) {
+    l->mFenceFd = native_handle_read_fd(t);
+}
+
+/**
+ * \brief Convert a `hidl_handle` to `OMXFenceParcelable`. If `hidl_handle`
+ * contains file descriptors, the first file descriptor will be duplicated and
+ * stored in the output `OMXFenceParcelable`.
+ *
+ * \param[out] l The output `OMXFenceParcelable`.
+ * \param[in] t The input `hidl_handle`.
+ * \return `false` if \p t contains a valid file descriptor but duplication
+ * fails; `true` otherwise.
+ */
+// convert: hidl_handle -> OMXFenceParcelable
+inline bool convertTo(OMXFenceParcelable* l, hidl_handle const& t) {
+    int fd = native_handle_read_fd(t);
+    if (fd != -1) {
+        fd = dup(fd);
+        if (fd == -1) {
+            return false;
+        }
+    }
+    l->mFenceFd = fd;
+    return true;
+}
+
+/**
+ * \brief Convert `::android::ColorAspects` to `ColorAspects`.
+ *
+ * \param[in] l The source `::android::ColorAspects`.
+ * \return The corresponding `ColorAspects`.
+ */
+// convert: ::android::ColorAspects -> ColorAspects
+inline ColorAspects toHardwareColorAspects(::android::ColorAspects const& l) {
+    return ColorAspects{
+            static_cast<ColorAspects::Range>(l.mRange),
+            static_cast<ColorAspects::Primaries>(l.mPrimaries),
+            static_cast<ColorAspects::Transfer>(l.mTransfer),
+            static_cast<ColorAspects::MatrixCoeffs>(l.mMatrixCoeffs)};
+}
+
+/**
+ * \brief Convert `int32_t` to `ColorAspects`.
+ *
+ * \param[in] l The source `int32_t`.
+ * \return The corresponding `ColorAspects`.
+ */
+// convert: int32_t -> ColorAspects
+inline ColorAspects toHardwareColorAspects(int32_t l) {
+    return ColorAspects{
+            static_cast<ColorAspects::Range>((l >> 24) & 0xFF),
+            static_cast<ColorAspects::Primaries>((l >> 16) & 0xFF),
+            static_cast<ColorAspects::Transfer>(l & 0xFF),
+            static_cast<ColorAspects::MatrixCoeffs>((l >> 8) & 0xFF)};
+}
+
+/**
+ * \brief Convert `ColorAspects` to `::android::ColorAspects`.
+ *
+ * \param[in] t The source `ColorAspects`.
+ * \return The corresponding `::android::ColorAspects`.
+ */
+// convert: ColorAspects -> ::android::ColorAspects
+inline int32_t toCompactColorAspects(ColorAspects const& t) {
+    return static_cast<int32_t>(
+            (static_cast<uint32_t>(t.range) << 24) |
+            (static_cast<uint32_t>(t.primaries) << 16) |
+            (static_cast<uint32_t>(t.transfer)) |
+            (static_cast<uint32_t>(t.matrixCoeffs) << 8));
+}
+
+/**
+ * \brief Convert `int32_t` to `Dataspace`.
+ *
+ * \param[in] l The source `int32_t`.
+ * \result The corresponding `Dataspace`.
+ */
+// convert: int32_t -> Dataspace
+inline Dataspace toHardwareDataspace(int32_t l) {
+    return static_cast<Dataspace>(l);
+}
+
+/**
+ * \brief Convert `Dataspace` to `int32_t`.
+ *
+ * \param[in] t The source `Dataspace`.
+ * \result The corresponding `int32_t`.
+ */
+// convert: Dataspace -> int32_t
+inline int32_t toRawDataspace(Dataspace const& t) {
+    return static_cast<int32_t>(t);
+}
+
+/**
+ * \brief Wrap an opaque buffer inside a `hidl_vec<uint8_t>`.
+ *
+ * \param[in] l The pointer to the beginning of the opaque buffer.
+ * \param[in] size The size of the buffer.
+ * \return A `hidl_vec<uint8_t>` that points to the buffer.
+ */
+// wrap: void*, size_t -> hidl_vec<uint8_t>
+inline hidl_vec<uint8_t> inHidlBytes(void const* l, size_t size) {
+    hidl_vec<uint8_t> t;
+    t.setToExternal(static_cast<uint8_t*>(const_cast<void*>(l)), size, false);
+    return t;
+}
+
+/**
+ * \brief Create a `hidl_vec<uint8_t>` that is a copy of an opaque buffer.
+ *
+ * \param[in] l The pointer to the beginning of the opaque buffer.
+ * \param[in] size The size of the buffer.
+ * \return A `hidl_vec<uint8_t>` that is a copy of the input buffer.
+ */
+// convert: void*, size_t -> hidl_vec<uint8_t>
+inline hidl_vec<uint8_t> toHidlBytes(void const* l, size_t size) {
+    hidl_vec<uint8_t> t;
+    t.resize(size);
+    uint8_t const* src = static_cast<uint8_t const*>(l);
+    std::copy(src, src + size, t.data());
+    return t;
+}
+
+/**
+ * \brief Wrap `GraphicBuffer` in `AnwBuffer`.
+ *
+ * \param[out] t The wrapper of type `AnwBuffer`.
+ * \param[in] l The source `GraphicBuffer`.
+ */
+// wrap: GraphicBuffer -> AnwBuffer
+inline void wrapAs(AnwBuffer* t, GraphicBuffer const& l) {
+    t->attr.width = l.getWidth();
+    t->attr.height = l.getHeight();
+    t->attr.stride = l.getStride();
+    t->attr.format = static_cast<PixelFormat>(l.getPixelFormat());
+    t->attr.layerCount = l.getLayerCount();
+    t->attr.usage = l.getUsage();
+    t->attr.id = l.getId();
+    t->attr.generationNumber = l.getGenerationNumber();
+    t->nativeHandle = hidl_handle(l.handle);
+}
+
+/**
+ * \brief Convert `AnwBuffer` to `GraphicBuffer`.
+ *
+ * \param[out] l The destination `GraphicBuffer`.
+ * \param[in] t The source `AnwBuffer`.
+ *
+ * This function will duplicate all file descriptors in \p t.
+ */
+// convert: AnwBuffer -> GraphicBuffer
+// Ref: frameworks/native/libs/ui/GraphicBuffer.cpp: GraphicBuffer::flatten
+inline bool convertTo(GraphicBuffer* l, AnwBuffer const& t) {
+    native_handle_t* handle = t.nativeHandle == nullptr ?
+            nullptr : native_handle_clone(t.nativeHandle);
+
+    size_t const numInts = 12 + (handle ? handle->numInts : 0);
+    int32_t* ints = new int32_t[numInts];
+
+    size_t numFds = static_cast<size_t>(handle ? handle->numFds : 0);
+    int* fds = new int[numFds];
+
+    ints[0] = 'GBFR';
+    ints[1] = static_cast<int32_t>(t.attr.width);
+    ints[2] = static_cast<int32_t>(t.attr.height);
+    ints[3] = static_cast<int32_t>(t.attr.stride);
+    ints[4] = static_cast<int32_t>(t.attr.format);
+    ints[5] = static_cast<int32_t>(t.attr.layerCount);
+    ints[6] = static_cast<int32_t>(t.attr.usage);
+    ints[7] = static_cast<int32_t>(t.attr.id >> 32);
+    ints[8] = static_cast<int32_t>(t.attr.id & 0xFFFFFFFF);
+    ints[9] = static_cast<int32_t>(t.attr.generationNumber);
+    ints[10] = 0;
+    ints[11] = 0;
+    if (handle) {
+        ints[10] = static_cast<int32_t>(handle->numFds);
+        ints[11] = static_cast<int32_t>(handle->numInts);
+        int* intsStart = handle->data + handle->numFds;
+        std::copy(handle->data, intsStart, fds);
+        std::copy(intsStart, intsStart + handle->numInts, &ints[12]);
+    }
+
+    void const* constBuffer = static_cast<void const*>(ints);
+    size_t size = numInts * sizeof(int32_t);
+    int const* constFds = static_cast<int const*>(fds);
+    status_t status = l->unflatten(constBuffer, size, constFds, numFds);
+
+    delete [] fds;
+    delete [] ints;
+    native_handle_delete(handle);
+    return status == NO_ERROR;
+}
+
+/**
+ * \brief Wrap `GraphicBuffer` in `CodecBuffer`.
+ *
+ * \param[out] t The wrapper of type `CodecBuffer`.
+ * \param[in] l The source `GraphicBuffer`.
+ */
+// wrap: OMXBuffer -> CodecBuffer
+inline CodecBuffer *wrapAs(CodecBuffer *t, sp<GraphicBuffer> const& graphicBuffer) {
+    t->sharedMemory = hidl_memory();
+    t->nativeHandle = hidl_handle();
+    t->type = CodecBuffer::Type::ANW_BUFFER;
+    if (graphicBuffer == nullptr) {
+        t->attr.anwBuffer.width = 0;
+        t->attr.anwBuffer.height = 0;
+        t->attr.anwBuffer.stride = 0;
+        t->attr.anwBuffer.format = static_cast<PixelFormat>(1);
+        t->attr.anwBuffer.layerCount = 0;
+        t->attr.anwBuffer.usage = 0;
+        return t;
+    }
+    t->attr.anwBuffer.width = graphicBuffer->getWidth();
+    t->attr.anwBuffer.height = graphicBuffer->getHeight();
+    t->attr.anwBuffer.stride = graphicBuffer->getStride();
+    t->attr.anwBuffer.format = static_cast<PixelFormat>(
+            graphicBuffer->getPixelFormat());
+    t->attr.anwBuffer.layerCount = graphicBuffer->getLayerCount();
+    t->attr.anwBuffer.usage = graphicBuffer->getUsage();
+    t->nativeHandle = graphicBuffer->handle;
+    return t;
+}
+
+/**
+ * \brief Wrap `OMXBuffer` in `CodecBuffer`.
+ *
+ * \param[out] t The wrapper of type `CodecBuffer`.
+ * \param[in] l The source `OMXBuffer`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ */
+// wrap: OMXBuffer -> CodecBuffer
+inline bool wrapAs(CodecBuffer* t, OMXBuffer const& l) {
+    t->sharedMemory = hidl_memory();
+    t->nativeHandle = hidl_handle();
+    switch (l.mBufferType) {
+        case OMXBuffer::kBufferTypeInvalid: {
+            t->type = CodecBuffer::Type::INVALID;
+            return true;
+        }
+        case OMXBuffer::kBufferTypePreset: {
+            t->type = CodecBuffer::Type::PRESET;
+            t->attr.preset.rangeLength = static_cast<uint32_t>(l.mRangeLength);
+            t->attr.preset.rangeOffset = static_cast<uint32_t>(l.mRangeOffset);
+            return true;
+        }
+        case OMXBuffer::kBufferTypeHidlMemory: {
+            t->type = CodecBuffer::Type::SHARED_MEM;
+            t->sharedMemory = l.mHidlMemory;
+            return true;
+        }
+        case OMXBuffer::kBufferTypeSharedMem: {
+            // This is not supported.
+            return false;
+        }
+        case OMXBuffer::kBufferTypeANWBuffer: {
+            wrapAs(t, l.mGraphicBuffer);
+            return true;
+        }
+        case OMXBuffer::kBufferTypeNativeHandle: {
+            t->type = CodecBuffer::Type::NATIVE_HANDLE;
+            t->nativeHandle = l.mNativeHandle->handle();
+            return true;
+        }
+    }
+    return false;
+}
+
+/**
+ * \brief Convert `CodecBuffer` to `OMXBuffer`.
+ *
+ * \param[out] l The destination `OMXBuffer`.
+ * \param[in] t The source `CodecBuffer`.
+ * \return `true` if successful; `false` otherwise.
+ */
+// convert: CodecBuffer -> OMXBuffer
+inline bool convertTo(OMXBuffer* l, CodecBuffer const& t) {
+    switch (t.type) {
+        case CodecBuffer::Type::INVALID: {
+            *l = OMXBuffer();
+            return true;
+        }
+        case CodecBuffer::Type::PRESET: {
+            *l = OMXBuffer(
+                    t.attr.preset.rangeOffset,
+                    t.attr.preset.rangeLength);
+            return true;
+        }
+        case CodecBuffer::Type::SHARED_MEM: {
+            *l = OMXBuffer(t.sharedMemory);
+            return true;
+        }
+        case CodecBuffer::Type::ANW_BUFFER: {
+            if (t.nativeHandle.getNativeHandle() == nullptr) {
+                *l = OMXBuffer(sp<GraphicBuffer>(nullptr));
+                return true;
+            }
+            AnwBuffer anwBuffer;
+            anwBuffer.nativeHandle = t.nativeHandle;
+            anwBuffer.attr = t.attr.anwBuffer;
+            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
+            if (!convertTo(graphicBuffer.get(), anwBuffer)) {
+                return false;
+            }
+            *l = OMXBuffer(graphicBuffer);
+            return true;
+        }
+        case CodecBuffer::Type::NATIVE_HANDLE: {
+            *l = OMXBuffer(NativeHandle::create(
+                    native_handle_clone(t.nativeHandle), true));
+            return true;
+        }
+    }
+    return false;
+}
+
+/**
+ * \brief Convert `IOMX::ComponentInfo` to `IOmx::ComponentInfo`.
+ *
+ * \param[out] t The destination `IOmx::ComponentInfo`.
+ * \param[in] l The source `IOMX::ComponentInfo`.
+ */
+// convert: IOMX::ComponentInfo -> IOmx::ComponentInfo
+inline bool convertTo(IOmx::ComponentInfo* t, IOMX::ComponentInfo const& l) {
+    t->mName = l.mName.string();
+    t->mRoles.resize(l.mRoles.size());
+    size_t i = 0;
+    for (auto& role : l.mRoles) {
+        t->mRoles[i++] = role.string();
+    }
+    return true;
+}
+
+/**
+ * \brief Convert `IOmx::ComponentInfo` to `IOMX::ComponentInfo`.
+ *
+ * \param[out] l The destination `IOMX::ComponentInfo`.
+ * \param[in] t The source `IOmx::ComponentInfo`.
+ */
+// convert: IOmx::ComponentInfo -> IOMX::ComponentInfo
+inline bool convertTo(IOMX::ComponentInfo* l, IOmx::ComponentInfo const& t) {
+    l->mName = t.mName.c_str();
+    l->mRoles.clear();
+    for (size_t i = 0; i < t.mRoles.size(); ++i) {
+        l->mRoles.push_back(String8(t.mRoles[i].c_str()));
+    }
+    return true;
+}
+
+/**
+ * \brief Convert `OMX_BOOL` to `bool`.
+ *
+ * \param[in] l The source `OMX_BOOL`.
+ * \return The destination `bool`.
+ */
+// convert: OMX_BOOL -> bool
+inline bool toRawBool(OMX_BOOL l) {
+    return l == OMX_FALSE ? false : true;
+}
+
+/**
+ * \brief Convert `bool` to `OMX_BOOL`.
+ *
+ * \param[in] t The source `bool`.
+ * \return The destination `OMX_BOOL`.
+ */
+// convert: bool -> OMX_BOOL
+inline OMX_BOOL toEnumBool(bool t) {
+    return t ? OMX_TRUE : OMX_FALSE;
+}
+
+/**
+ * \brief Convert `OMX_COMMANDTYPE` to `uint32_t`.
+ *
+ * \param[in] l The source `OMX_COMMANDTYPE`.
+ * \return The underlying value of type `uint32_t`.
+ *
+ * `OMX_COMMANDTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: OMX_COMMANDTYPE -> uint32_t
+inline uint32_t toRawCommandType(OMX_COMMANDTYPE l) {
+    return static_cast<uint32_t>(l);
+}
+
+/**
+ * \brief Convert `uint32_t` to `OMX_COMMANDTYPE`.
+ *
+ * \param[in] t The source `uint32_t`.
+ * \return The corresponding enum value of type `OMX_COMMANDTYPE`.
+ *
+ * `OMX_COMMANDTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: uint32_t -> OMX_COMMANDTYPE
+inline OMX_COMMANDTYPE toEnumCommandType(uint32_t t) {
+    return static_cast<OMX_COMMANDTYPE>(t);
+}
+
+/**
+ * \brief Convert `OMX_INDEXTYPE` to `uint32_t`.
+ *
+ * \param[in] l The source `OMX_INDEXTYPE`.
+ * \return The underlying value of type `uint32_t`.
+ *
+ * `OMX_INDEXTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: OMX_INDEXTYPE -> uint32_t
+inline uint32_t toRawIndexType(OMX_INDEXTYPE l) {
+    return static_cast<uint32_t>(l);
+}
+
+/**
+ * \brief Convert `uint32_t` to `OMX_INDEXTYPE`.
+ *
+ * \param[in] t The source `uint32_t`.
+ * \return The corresponding enum value of type `OMX_INDEXTYPE`.
+ *
+ * `OMX_INDEXTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: uint32_t -> OMX_INDEXTYPE
+inline OMX_INDEXTYPE toEnumIndexType(uint32_t t) {
+    return static_cast<OMX_INDEXTYPE>(t);
+}
+
+/**
+ * \brief Convert `IOMX::PortMode` to `PortMode`.
+ *
+ * \param[in] l The source `IOMX::PortMode`.
+ * \return The destination `PortMode`.
+ */
+// convert: IOMX::PortMode -> PortMode
+inline PortMode toHardwarePortMode(IOMX::PortMode l) {
+    return static_cast<PortMode>(l);
+}
+
+/**
+ * \brief Convert `PortMode` to `IOMX::PortMode`.
+ *
+ * \param[in] t The source `PortMode`.
+ * \return The destination `IOMX::PortMode`.
+ */
+// convert: PortMode -> IOMX::PortMode
+inline IOMX::PortMode toIOMXPortMode(PortMode t) {
+    return static_cast<IOMX::PortMode>(t);
+}
+
+/**
+ * \brief Convert `OMX_TICKS` to `uint64_t`.
+ *
+ * \param[in] l The source `OMX_TICKS`.
+ * \return The destination `uint64_t`.
+ */
+// convert: OMX_TICKS -> uint64_t
+inline uint64_t toRawTicks(OMX_TICKS l) {
+#ifndef OMX_SKIP64BIT
+    return static_cast<uint64_t>(l);
+#else
+    return static_cast<uint64_t>(l.nLowPart) |
+            static_cast<uint64_t>(l.nHighPart << 32);
+#endif
+}
+
+/**
+ * \brief Convert `uint64_t` to `OMX_TICKS`.
+ *
+ * \param[in] l The source `uint64_t`.
+ * \return The destination `OMX_TICKS`.
+ */
+// convert: uint64_t -> OMX_TICKS
+inline OMX_TICKS toOMXTicks(uint64_t t) {
+#ifndef OMX_SKIP64BIT
+    return static_cast<OMX_TICKS>(t);
+#else
+    return OMX_TICKS{
+            static_cast<uint32_t>(t & 0xFFFFFFFF),
+            static_cast<uint32_t>(t >> 32)};
+#endif
+}
+
+/**
+ * Conversion functions for types outside media
+ * ============================================
+ *
+ * Some objects in libui and libgui that were made to go through binder calls do
+ * not expose ways to read or write their fields to the public. To pass an
+ * object of this kind through the HIDL boundary, translation functions need to
+ * work around the access restriction by using the publicly available
+ * `flatten()` and `unflatten()` functions.
+ *
+ * All `flatten()` and `unflatten()` overloads follow the same convention as
+ * follows:
+ *
+ *     status_t flatten(ObjectType const& object,
+ *                      [OtherType const& other, ...]
+ *                      void*& buffer, size_t& size,
+ *                      int*& fds, size_t& numFds)
+ *
+ *     status_t unflatten(ObjectType* object,
+ *                        [OtherType* other, ...,]
+ *                        void*& buffer, size_t& size,
+ *                        int*& fds, size_t& numFds)
+ *
+ * The number of `other` parameters varies depending on the `ObjectType`. For
+ * example, in the process of unflattening an object that contains
+ * `hidl_handle`, `other` is needed to hold `native_handle_t` objects that will
+ * be created.
+ *
+ * The last four parameters always work the same way in all overloads of
+ * `flatten()` and `unflatten()`:
+ * - For `flatten()`, `buffer` is the pointer to the non-fd buffer to be filled,
+ *   `size` is the size (in bytes) of the non-fd buffer pointed to by `buffer`,
+ *   `fds` is the pointer to the fd buffer to be filled, and `numFds` is the
+ *   size (in ints) of the fd buffer pointed to by `fds`.
+ * - For `unflatten()`, `buffer` is the pointer to the non-fd buffer to be read
+ *   from, `size` is the size (in bytes) of the non-fd buffer pointed to by
+ *   `buffer`, `fds` is the pointer to the fd buffer to be read from, and
+ *   `numFds` is the size (in ints) of the fd buffer pointed to by `fds`.
+ * - After a successful call to `flatten()` or `unflatten()`, `buffer` and `fds`
+ *   will be advanced, while `size` and `numFds` will be decreased to reflect
+ *   how much storage/data of the two buffers (fd and non-fd) have been used.
+ * - After an unsuccessful call, the values of `buffer`, `size`, `fds` and
+ *   `numFds` are invalid.
+ *
+ * The return value of a successful `flatten()` or `unflatten()` call will be
+ * `OK` (also aliased as `NO_ERROR`). Any other values indicate a failure.
+ *
+ * For each object type that supports flattening, there will be two accompanying
+ * functions: `getFlattenedSize()` and `getFdCount()`. `getFlattenedSize()` will
+ * return the size of the non-fd buffer that the object will need for
+ * flattening. `getFdCount()` will return the size of the fd buffer that the
+ * object will need for flattening.
+ *
+ * The set of these four functions, `getFlattenedSize()`, `getFdCount()`,
+ * `flatten()` and `unflatten()`, are similar to functions of the same name in
+ * the abstract class `Flattenable`. The only difference is that functions in
+ * this file are not member functions of the object type. For example, we write
+ *
+ *     flatten(x, buffer, size, fds, numFds)
+ *
+ * instead of
+ *
+ *     x.flatten(buffer, size, fds, numFds)
+ *
+ * because we cannot modify the type of `x`.
+ *
+ * There is one exception to the naming convention: `hidl_handle` that
+ * represents a fence. The four functions for this "Fence" type have the word
+ * "Fence" attched to their names because the object type, which is
+ * `hidl_handle`, does not carry the special meaning that the object itself can
+ * only contain zero or one file descriptor.
+ */
+
+// Ref: frameworks/native/libs/ui/Fence.cpp
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten a fence.
+ *
+ * \param[in] fence The input fence of type `hidl_handle`.
+ * \return The required size of the flat buffer.
+ *
+ * The current version of this function always returns 4, which is the number of
+ * bytes required to store the number of file descriptors contained in the fd
+ * part of the flat buffer.
+ */
+inline size_t getFenceFlattenedSize(hidl_handle const& /* fence */) {
+    return 4;
+};
+
+/**
+ * \brief Return the number of file descriptors contained in a fence.
+ *
+ * \param[in] fence The input fence of type `hidl_handle`.
+ * \return `0` if \p fence does not contain a valid file descriptor, or `1`
+ * otherwise.
+ */
+inline size_t getFenceFdCount(hidl_handle const& fence) {
+    return native_handle_read_fd(fence) == -1 ? 0 : 1;
+}
+
+/**
+ * \brief Unflatten `Fence` to `hidl_handle`.
+ *
+ * \param[out] fence The destination `hidl_handle`.
+ * \param[out] nh The underlying native handle.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR`, \p nh will point to a newly created
+ * native handle, which needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline status_t unflattenFence(hidl_handle* fence, native_handle_t** nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < 4) {
+        return NO_MEMORY;
+    }
+
+    uint32_t numFdsInHandle;
+    FlattenableUtils::read(buffer, size, numFdsInHandle);
+
+    if (numFdsInHandle > 1) {
+        return BAD_VALUE;
+    }
+
+    if (numFds < numFdsInHandle) {
+        return NO_MEMORY;
+    }
+
+    if (numFdsInHandle) {
+        *nh = native_handle_create_from_fd(*fds);
+        if (*nh == nullptr) {
+            return NO_MEMORY;
+        }
+        *fence = *nh;
+        ++fds;
+        --numFds;
+    } else {
+        *nh = nullptr;
+        *fence = hidl_handle();
+    }
+
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `hidl_handle` as `Fence`.
+ *
+ * \param[in] t The source `hidl_handle`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ */
+inline status_t flattenFence(hidl_handle const& fence,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (size < getFenceFlattenedSize(fence) ||
+            numFds < getFenceFdCount(fence)) {
+        return NO_MEMORY;
+    }
+    // Cast to uint32_t since the size of a size_t can vary between 32- and
+    // 64-bit processes
+    FlattenableUtils::write(buffer, size,
+            static_cast<uint32_t>(getFenceFdCount(fence)));
+    int fd = native_handle_read_fd(fence);
+    if (fd != -1) {
+        *fds = fd;
+        ++fds;
+        --numFds;
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Wrap `Fence` in `hidl_handle`.
+ *
+ * \param[out] t The wrapper of type `hidl_handle`.
+ * \param[out] nh The native handle pointed to by \p t.
+ * \param[in] l The source `Fence`.
+ *
+ * On success, \p nh will hold a newly created native handle, which must be
+ * deleted manually with `native_handle_delete()` afterwards.
+ */
+// wrap: Fence -> hidl_handle
+inline bool wrapAs(hidl_handle* t, native_handle_t** nh, Fence const& l) {
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = l.getFdCount();
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = static_cast<int*>(baseFds.get());
+    size_t numFds = baseNumFds;
+    if (l.flatten(buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (unflattenFence(t, nh, constBuffer, size, constFds, numFds)
+            != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `hidl_handle` to `Fence`.
+ *
+ * \param[out] l The destination `Fence`. `l` must not have been used
+ * (`l->isValid()` must return `false`) before this function is called.
+ * \param[in] t The source `hidl_handle`.
+ *
+ * If \p t contains a valid file descriptor, it will be duplicated.
+ */
+// convert: hidl_handle -> Fence
+inline bool convertTo(Fence* l, hidl_handle const& t) {
+    int fd = native_handle_read_fd(t);
+    if (fd != -1) {
+        fd = dup(fd);
+        if (fd == -1) {
+            return false;
+        }
+    }
+    native_handle_t* nh = native_handle_create_from_fd(fd);
+    if (nh == nullptr) {
+        if (fd != -1) {
+            close(fd);
+        }
+        return false;
+    }
+
+    size_t const baseSize = getFenceFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        native_handle_delete(nh);
+        return false;
+    }
+
+    size_t const baseNumFds = getFenceFdCount(t);
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        native_handle_delete(nh);
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = static_cast<int*>(baseFds.get());
+    size_t numFds = baseNumFds;
+    if (flattenFence(hidl_handle(nh), buffer, size, fds, numFds) != NO_ERROR) {
+        native_handle_delete(nh);
+        return false;
+    }
+    native_handle_delete(nh);
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (l->unflatten(constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+// Ref: frameworks/native/libs/ui/FenceTime.cpp: FenceTime::Snapshot
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `FenceTimeSnapshot`.
+ *
+ * \param[in] t The input `FenceTimeSnapshot`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+        HGraphicBufferProducer::FenceTimeSnapshot const& t) {
+    constexpr size_t min = sizeof(t.state);
+    switch (t.state) {
+        case HGraphicBufferProducer::FenceTimeSnapshot::State::EMPTY:
+            return min;
+        case HGraphicBufferProducer::FenceTimeSnapshot::State::FENCE:
+            return min + getFenceFlattenedSize(t.fence);
+        case HGraphicBufferProducer::FenceTimeSnapshot::State::SIGNAL_TIME:
+            return min + sizeof(
+                    ::android::FenceTime::Snapshot::signalTime);
+    }
+    return 0;
+}
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `FenceTimeSnapshot`.
+ *
+ * \param[in] t The input `FenceTimeSnapshot`.
+ * \return The number of file descriptors contained in \p snapshot.
+ */
+inline size_t getFdCount(
+        HGraphicBufferProducer::FenceTimeSnapshot const& t) {
+    return t.state ==
+            HGraphicBufferProducer::FenceTimeSnapshot::State::FENCE ?
+            getFenceFdCount(t.fence) : 0;
+}
+
+/**
+ * \brief Flatten `FenceTimeSnapshot`.
+ *
+ * \param[in] t The source `FenceTimeSnapshot`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate the file descriptor in `t.fence` if `t.state ==
+ * FENCE`.
+ */
+inline status_t flatten(HGraphicBufferProducer::FenceTimeSnapshot const& t,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    switch (t.state) {
+        case HGraphicBufferProducer::FenceTimeSnapshot::State::EMPTY:
+            FlattenableUtils::write(buffer, size,
+                    ::android::FenceTime::Snapshot::State::EMPTY);
+            return NO_ERROR;
+        case HGraphicBufferProducer::FenceTimeSnapshot::State::FENCE:
+            FlattenableUtils::write(buffer, size,
+                    ::android::FenceTime::Snapshot::State::FENCE);
+            return flattenFence(t.fence, buffer, size, fds, numFds);
+        case HGraphicBufferProducer::FenceTimeSnapshot::State::SIGNAL_TIME:
+            FlattenableUtils::write(buffer, size,
+                    ::android::FenceTime::Snapshot::State::SIGNAL_TIME);
+            FlattenableUtils::write(buffer, size, t.signalTimeNs);
+            return NO_ERROR;
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Unflatten `FenceTimeSnapshot`.
+ *
+ * \param[out] t The destination `FenceTimeSnapshot`.
+ * \param[out] nh The underlying native handle.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR` and the constructed snapshot contains a
+ * file descriptor, \p nh will be created to hold that file descriptor. In this
+ * case, \p nh needs to be deleted with `native_handle_delete()` afterwards.
+ */
+inline status_t unflatten(
+        HGraphicBufferProducer::FenceTimeSnapshot* t, native_handle_t** nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < sizeof(t->state)) {
+        return NO_MEMORY;
+    }
+
+    *nh = nullptr;
+    ::android::FenceTime::Snapshot::State state;
+    FlattenableUtils::read(buffer, size, state);
+    switch (state) {
+        case ::android::FenceTime::Snapshot::State::EMPTY:
+            t->state = HGraphicBufferProducer::FenceTimeSnapshot::State::EMPTY;
+            return NO_ERROR;
+        case ::android::FenceTime::Snapshot::State::FENCE:
+            t->state = HGraphicBufferProducer::FenceTimeSnapshot::State::FENCE;
+            return unflattenFence(&t->fence, nh, buffer, size, fds, numFds);
+        case ::android::FenceTime::Snapshot::State::SIGNAL_TIME:
+            t->state = HGraphicBufferProducer::FenceTimeSnapshot::State::SIGNAL_TIME;
+            if (size < sizeof(t->signalTimeNs)) {
+                return NO_MEMORY;
+            }
+            FlattenableUtils::read(buffer, size, t->signalTimeNs);
+            return NO_ERROR;
+    }
+    return NO_ERROR;
+}
+
+// Ref: frameworks/native/libs/gui/FrameTimestamps.cpp: FrameEventsDelta
+
+/**
+ * \brief Return a lower bound on the size of the non-fd buffer required to
+ * flatten `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return A lower bound on the size of the flat buffer.
+ */
+constexpr size_t minFlattenedSize(
+        HGraphicBufferProducer::FrameEventsDelta const& /* t */) {
+    return sizeof(uint64_t) + // mFrameNumber
+            sizeof(uint8_t) + // mIndex
+            sizeof(uint8_t) + // mAddPostCompositeCalled
+            sizeof(uint8_t) + // mAddRetireCalled
+            sizeof(uint8_t) + // mAddReleaseCalled
+            sizeof(nsecs_t) + // mPostedTime
+            sizeof(nsecs_t) + // mRequestedPresentTime
+            sizeof(nsecs_t) + // mLatchTime
+            sizeof(nsecs_t) + // mFirstRefreshStartTime
+            sizeof(nsecs_t); // mLastRefreshStartTime
+}
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+        HGraphicBufferProducer::FrameEventsDelta const& t) {
+    return minFlattenedSize(t) +
+            getFlattenedSize(t.gpuCompositionDoneFence) +
+            getFlattenedSize(t.displayPresentFence) +
+            getFlattenedSize(t.displayRetireFence) +
+            getFlattenedSize(t.releaseFence);
+};
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return The number of file descriptors contained in \p t.
+ */
+inline size_t getFdCount(
+        HGraphicBufferProducer::FrameEventsDelta const& t) {
+    return getFdCount(t.gpuCompositionDoneFence) +
+            getFdCount(t.displayPresentFence) +
+            getFdCount(t.displayRetireFence) +
+            getFdCount(t.releaseFence);
+};
+
+/**
+ * \brief Unflatten `FrameEventsDelta`.
+ *
+ * \param[out] t The destination `FrameEventsDelta`.
+ * \param[out] nh The underlying array of native handles.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR`, \p nh will have length 4, and it will be
+ * populated with `nullptr` or newly created handles. Each non-null slot in \p
+ * nh will need to be deleted manually with `native_handle_delete()`.
+ */
+inline status_t unflatten(HGraphicBufferProducer::FrameEventsDelta* t,
+        std::vector<native_handle_t*>* nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < minFlattenedSize(*t)) {
+        return NO_MEMORY;
+    }
+    FlattenableUtils::read(buffer, size, t->frameNumber);
+
+    // These were written as uint8_t for alignment.
+    uint8_t temp = 0;
+    FlattenableUtils::read(buffer, size, temp);
+    size_t index = static_cast<size_t>(temp);
+    if (index >= ::android::FrameEventHistory::MAX_FRAME_HISTORY) {
+        return BAD_VALUE;
+    }
+    t->index = static_cast<uint32_t>(index);
+
+    FlattenableUtils::read(buffer, size, temp);
+    t->addPostCompositeCalled = static_cast<bool>(temp);
+    FlattenableUtils::read(buffer, size, temp);
+    t->addRetireCalled = static_cast<bool>(temp);
+    FlattenableUtils::read(buffer, size, temp);
+    t->addReleaseCalled = static_cast<bool>(temp);
+
+    FlattenableUtils::read(buffer, size, t->postedTimeNs);
+    FlattenableUtils::read(buffer, size, t->requestedPresentTimeNs);
+    FlattenableUtils::read(buffer, size, t->latchTimeNs);
+    FlattenableUtils::read(buffer, size, t->firstRefreshStartTimeNs);
+    FlattenableUtils::read(buffer, size, t->lastRefreshStartTimeNs);
+    FlattenableUtils::read(buffer, size, t->dequeueReadyTime);
+
+    // Fences
+    HGraphicBufferProducer::FenceTimeSnapshot* tSnapshot[4];
+    tSnapshot[0] = &t->gpuCompositionDoneFence;
+    tSnapshot[1] = &t->displayPresentFence;
+    tSnapshot[2] = &t->displayRetireFence;
+    tSnapshot[3] = &t->releaseFence;
+    nh->resize(4);
+    for (size_t snapshotIndex = 0; snapshotIndex < 4; ++snapshotIndex) {
+        status_t status = unflatten(
+                tSnapshot[snapshotIndex], &((*nh)[snapshotIndex]),
+                buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            while (snapshotIndex > 0) {
+                --snapshotIndex;
+                if ((*nh)[snapshotIndex] != nullptr) {
+                    native_handle_delete((*nh)[snapshotIndex]);
+                }
+            }
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `FrameEventsDelta`.
+ *
+ * \param[in] t The source `FrameEventsDelta`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate file descriptors contained in \p t.
+ */
+// Ref: frameworks/native/libs/gui/FrameTimestamp.cpp:
+//      FrameEventsDelta::flatten
+inline status_t flatten(HGraphicBufferProducer::FrameEventsDelta const& t,
+        void*& buffer, size_t& size, int*& fds, size_t numFds) {
+    // Check that t.index is within a valid range.
+    if (t.index >= static_cast<uint32_t>(FrameEventHistory::MAX_FRAME_HISTORY)
+            || t.index > std::numeric_limits<uint8_t>::max()) {
+        return BAD_VALUE;
+    }
+
+    FlattenableUtils::write(buffer, size, t.frameNumber);
+
+    // These are static_cast to uint8_t for alignment.
+    FlattenableUtils::write(buffer, size, static_cast<uint8_t>(t.index));
+    FlattenableUtils::write(
+            buffer, size, static_cast<uint8_t>(t.addPostCompositeCalled));
+    FlattenableUtils::write(
+            buffer, size, static_cast<uint8_t>(t.addRetireCalled));
+    FlattenableUtils::write(
+            buffer, size, static_cast<uint8_t>(t.addReleaseCalled));
+
+    FlattenableUtils::write(buffer, size, t.postedTimeNs);
+    FlattenableUtils::write(buffer, size, t.requestedPresentTimeNs);
+    FlattenableUtils::write(buffer, size, t.latchTimeNs);
+    FlattenableUtils::write(buffer, size, t.firstRefreshStartTimeNs);
+    FlattenableUtils::write(buffer, size, t.lastRefreshStartTimeNs);
+    FlattenableUtils::write(buffer, size, t.dequeueReadyTime);
+
+    // Fences
+    HGraphicBufferProducer::FenceTimeSnapshot const* tSnapshot[4];
+    tSnapshot[0] = &t.gpuCompositionDoneFence;
+    tSnapshot[1] = &t.displayPresentFence;
+    tSnapshot[2] = &t.displayRetireFence;
+    tSnapshot[3] = &t.releaseFence;
+    for (size_t snapshotIndex = 0; snapshotIndex < 4; ++snapshotIndex) {
+        status_t status = flatten(
+                *(tSnapshot[snapshotIndex]), buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+// Ref: frameworks/native/libs/gui/FrameTimestamps.cpp: FrameEventHistoryDelta
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ *
+ * \param[in] t The input `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+        HGraphicBufferProducer::FrameEventHistoryDelta const& t) {
+    size_t size = 4 + // mDeltas.size()
+            sizeof(t.compositorTiming);
+    for (size_t i = 0; i < t.deltas.size(); ++i) {
+        size += getFlattenedSize(t.deltas[i]);
+    }
+    return size;
+}
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ *
+ * \param[in] t The input `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ * \return The number of file descriptors contained in \p t.
+ */
+inline size_t getFdCount(
+        HGraphicBufferProducer::FrameEventHistoryDelta const& t) {
+    size_t numFds = 0;
+    for (size_t i = 0; i < t.deltas.size(); ++i) {
+        numFds += getFdCount(t.deltas[i]);
+    }
+    return numFds;
+}
+
+/**
+ * \brief Unflatten `FrameEventHistoryDelta`.
+ *
+ * \param[out] t The destination `FrameEventHistoryDelta`.
+ * \param[out] nh The underlying array of arrays of native handles.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR`, \p nh will be populated with `nullptr` or
+ * newly created handles. The second dimension of \p nh will be 4. Each non-null
+ * slot in \p nh will need to be deleted manually with `native_handle_delete()`.
+ */
+inline status_t unflatten(
+        HGraphicBufferProducer::FrameEventHistoryDelta* t,
+        std::vector<std::vector<native_handle_t*> >* nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < 4) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::read(buffer, size, t->compositorTiming);
+
+    uint32_t deltaCount = 0;
+    FlattenableUtils::read(buffer, size, deltaCount);
+    if (static_cast<size_t>(deltaCount) >
+            ::android::FrameEventHistory::MAX_FRAME_HISTORY) {
+        return BAD_VALUE;
+    }
+    t->deltas.resize(deltaCount);
+    nh->resize(deltaCount);
+    for (size_t deltaIndex = 0; deltaIndex < deltaCount; ++deltaIndex) {
+        status_t status = unflatten(
+                &(t->deltas[deltaIndex]), &((*nh)[deltaIndex]),
+                buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `FrameEventHistoryDelta`.
+ *
+ * \param[in] t The source `FrameEventHistoryDelta`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate file descriptors contained in \p t.
+ */
+inline status_t flatten(
+        HGraphicBufferProducer::FrameEventHistoryDelta const& t,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (t.deltas.size() > ::android::FrameEventHistory::MAX_FRAME_HISTORY) {
+        return BAD_VALUE;
+    }
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::write(buffer, size, t.compositorTiming);
+
+    FlattenableUtils::write(buffer, size, static_cast<uint32_t>(t.deltas.size()));
+    for (size_t deltaIndex = 0; deltaIndex < t.deltas.size(); ++deltaIndex) {
+        status_t status = flatten(t.deltas[deltaIndex], buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Wrap `::android::FrameEventHistoryData` in
+ * `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ *
+ * \param[out] t The wrapper of type
+ * `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ * \param[out] nh The array of array of native handles that are referred to by
+ * members of \p t.
+ * \param[in] l The source `::android::FrameEventHistoryDelta`.
+ *
+ * On success, each member of \p nh will be either `nullptr` or a newly created
+ * native handle. All the non-`nullptr` elements must be deleted individually
+ * with `native_handle_delete()`.
+ */
+inline bool wrapAs(HGraphicBufferProducer::FrameEventHistoryDelta* t,
+        std::vector<std::vector<native_handle_t*> >* nh,
+        ::android::FrameEventHistoryDelta const& l) {
+
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = l.getFdCount();
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = baseFds.get();
+    size_t numFds = baseNumFds;
+    if (l.flatten(buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (unflatten(t, nh, constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `HGraphicBufferProducer::FrameEventHistoryDelta` to
+ * `::android::FrameEventHistoryDelta`.
+ *
+ * \param[out] l The destination `::android::FrameEventHistoryDelta`.
+ * \param[in] t The source `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ *
+ * This function will duplicate all file descriptors contained in \p t.
+ */
+inline bool convertTo(
+        ::android::FrameEventHistoryDelta* l,
+        HGraphicBufferProducer::FrameEventHistoryDelta const& t) {
+
+    size_t const baseSize = getFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = getFdCount(t);
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = static_cast<int*>(baseFds.get());
+    size_t numFds = baseNumFds;
+    if (flatten(t, buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (l->unflatten(constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+// Ref: frameworks/native/libs/ui/Region.cpp
+
+/**
+ * \brief Return the size of the buffer required to flatten `Region`.
+ *
+ * \param[in] t The input `Region`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(Region const& t) {
+    return sizeof(uint32_t) + t.size() * sizeof(::android::Rect);
+}
+
+/**
+ * \brief Unflatten `Region`.
+ *
+ * \param[out] t The destination `Region`.
+ * \param[in,out] buffer The pointer to the flat buffer.
+ * \param[in,out] size The size of the flat buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ */
+inline status_t unflatten(Region* t, void const*& buffer, size_t& size) {
+    if (size < sizeof(uint32_t)) {
+        return NO_MEMORY;
+    }
+
+    uint32_t numRects = 0;
+    FlattenableUtils::read(buffer, size, numRects);
+    if (size < numRects * sizeof(Rect)) {
+        return NO_MEMORY;
+    }
+    if (numRects > (UINT32_MAX / sizeof(Rect))) {
+        return NO_MEMORY;
+    }
+
+    t->resize(numRects);
+    for (size_t r = 0; r < numRects; ++r) {
+        ::android::Rect rect(::android::Rect::EMPTY_RECT);
+        status_t status = rect.unflatten(buffer, size);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        FlattenableUtils::advance(buffer, size, sizeof(rect));
+        (*t)[r] = Rect{
+                static_cast<int32_t>(rect.left),
+                static_cast<int32_t>(rect.top),
+                static_cast<int32_t>(rect.right),
+                static_cast<int32_t>(rect.bottom)};
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `Region`.
+ *
+ * \param[in] t The source `Region`.
+ * \param[in,out] buffer The pointer to the flat buffer.
+ * \param[in,out] size The size of the flat buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ */
+inline status_t flatten(Region const& t, void*& buffer, size_t& size) {
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::write(buffer, size, static_cast<uint32_t>(t.size()));
+    for (size_t r = 0; r < t.size(); ++r) {
+        ::android::Rect rect(
+                static_cast<int32_t>(t[r].left),
+                static_cast<int32_t>(t[r].top),
+                static_cast<int32_t>(t[r].right),
+                static_cast<int32_t>(t[r].bottom));
+        status_t status = rect.flatten(buffer, size);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        FlattenableUtils::advance(buffer, size, sizeof(rect));
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Convert `::android::Region` to `Region`.
+ *
+ * \param[out] t The destination `Region`.
+ * \param[in] l The source `::android::Region`.
+ */
+// convert: ::android::Region -> Region
+inline bool convertTo(Region* t, ::android::Region const& l) {
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    if (l.flatten(buffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    if (unflatten(t, constBuffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `Region` to `::android::Region`.
+ *
+ * \param[out] l The destination `::android::Region`.
+ * \param[in] t The source `Region`.
+ */
+// convert: Region -> ::android::Region
+inline bool convertTo(::android::Region* l, Region const& t) {
+    size_t const baseSize = getFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    if (flatten(t, buffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    if (l->unflatten(constBuffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+// Ref: frameworks/native/libs/gui/BGraphicBufferProducer.cpp:
+//      BGraphicBufferProducer::QueueBufferInput
+
+/**
+ * \brief Return a lower bound on the size of the buffer required to flatten
+ * `HGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The input `HGraphicBufferProducer::QueueBufferInput`.
+ * \return A lower bound on the size of the flat buffer.
+ */
+constexpr size_t minFlattenedSize(
+        HGraphicBufferProducer::QueueBufferInput const& /* t */) {
+    return sizeof(int64_t) + // timestamp
+            sizeof(int) + // isAutoTimestamp
+            sizeof(android_dataspace) + // dataSpace
+            sizeof(::android::Rect) + // crop
+            sizeof(int) + // scalingMode
+            sizeof(uint32_t) + // transform
+            sizeof(uint32_t) + // stickyTransform
+            sizeof(bool); // getFrameTimestamps
+}
+
+/**
+ * \brief Return the size of the buffer required to flatten
+ * `HGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The input `HGraphicBufferProducer::QueueBufferInput`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(HGraphicBufferProducer::QueueBufferInput const& t) {
+    return minFlattenedSize(t) +
+            getFenceFlattenedSize(t.fence) +
+            getFlattenedSize(t.surfaceDamage);
+}
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `HGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The input `HGraphicBufferProducer::QueueBufferInput`.
+ * \return The number of file descriptors contained in \p t.
+ */
+inline size_t getFdCount(
+        HGraphicBufferProducer::QueueBufferInput const& t) {
+    return getFenceFdCount(t.fence);
+}
+
+/**
+ * \brief Flatten `HGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The source `HGraphicBufferProducer::QueueBufferInput`.
+ * \param[out] nh The native handle cloned from `t.fence`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate the file descriptor in `t.fence`. */
+inline status_t flatten(HGraphicBufferProducer::QueueBufferInput const& t,
+        native_handle_t** nh,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::write(buffer, size, t.timestamp);
+    FlattenableUtils::write(buffer, size, static_cast<int>(t.isAutoTimestamp));
+    FlattenableUtils::write(buffer, size,
+            static_cast<android_dataspace_t>(t.dataSpace));
+    FlattenableUtils::write(buffer, size, ::android::Rect(
+            static_cast<int32_t>(t.crop.left),
+            static_cast<int32_t>(t.crop.top),
+            static_cast<int32_t>(t.crop.right),
+            static_cast<int32_t>(t.crop.bottom)));
+    FlattenableUtils::write(buffer, size, static_cast<int>(t.scalingMode));
+    FlattenableUtils::write(buffer, size, t.transform);
+    FlattenableUtils::write(buffer, size, t.stickyTransform);
+    FlattenableUtils::write(buffer, size, t.getFrameTimestamps);
+
+    *nh = t.fence.getNativeHandle() == nullptr ?
+            nullptr : native_handle_clone(t.fence);
+    status_t status = flattenFence(hidl_handle(*nh), buffer, size, fds, numFds);
+    if (status != NO_ERROR) {
+        return status;
+    }
+    return flatten(t.surfaceDamage, buffer, size);
+}
+
+/**
+ * \brief Unflatten `HGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[out] t The destination `HGraphicBufferProducer::QueueBufferInput`.
+ * \param[out] nh The underlying native handle for `t->fence`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR` and `t->fence` contains a valid file
+ * descriptor, \p nh will be a newly created native handle holding that file
+ * descriptor. \p nh needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline status_t unflatten(
+        HGraphicBufferProducer::QueueBufferInput* t, native_handle_t** nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < minFlattenedSize(*t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::read(buffer, size, t->timestamp);
+    int lIsAutoTimestamp;
+    FlattenableUtils::read(buffer, size, lIsAutoTimestamp);
+    t->isAutoTimestamp = static_cast<int32_t>(lIsAutoTimestamp);
+    android_dataspace_t lDataSpace;
+    FlattenableUtils::read(buffer, size, lDataSpace);
+    t->dataSpace = static_cast<Dataspace>(lDataSpace);
+    Rect lCrop;
+    FlattenableUtils::read(buffer, size, lCrop);
+    t->crop = Rect{
+            static_cast<int32_t>(lCrop.left),
+            static_cast<int32_t>(lCrop.top),
+            static_cast<int32_t>(lCrop.right),
+            static_cast<int32_t>(lCrop.bottom)};
+    int lScalingMode;
+    FlattenableUtils::read(buffer, size, lScalingMode);
+    t->scalingMode = static_cast<int32_t>(lScalingMode);
+    FlattenableUtils::read(buffer, size, t->transform);
+    FlattenableUtils::read(buffer, size, t->stickyTransform);
+    FlattenableUtils::read(buffer, size, t->getFrameTimestamps);
+
+    status_t status = unflattenFence(&(t->fence), nh,
+            buffer, size, fds, numFds);
+    if (status != NO_ERROR) {
+        return status;
+    }
+    return unflatten(&(t->surfaceDamage), buffer, size);
+}
+
+/**
+ * \brief Wrap `BGraphicBufferProducer::QueueBufferInput` in
+ * `HGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[out] t The wrapper of type
+ * `HGraphicBufferProducer::QueueBufferInput`.
+ * \param[out] nh The underlying native handle for `t->fence`.
+ * \param[in] l The source `BGraphicBufferProducer::QueueBufferInput`.
+ *
+ * If the return value is `true` and `t->fence` contains a valid file
+ * descriptor, \p nh will be a newly created native handle holding that file
+ * descriptor. \p nh needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline bool wrapAs(
+        HGraphicBufferProducer::QueueBufferInput* t,
+        native_handle_t** nh,
+        BGraphicBufferProducer::QueueBufferInput const& l) {
+
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = l.getFdCount();
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = baseFds.get();
+    size_t numFds = baseNumFds;
+    if (l.flatten(buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (unflatten(t, nh, constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `HGraphicBufferProducer::QueueBufferInput` to
+ * `BGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[out] l The destination `BGraphicBufferProducer::QueueBufferInput`.
+ * \param[in] t The source `HGraphicBufferProducer::QueueBufferInput`.
+ *
+ * If `t.fence` has a valid file descriptor, it will be duplicated.
+ */
+inline bool convertTo(
+        BGraphicBufferProducer::QueueBufferInput* l,
+        HGraphicBufferProducer::QueueBufferInput const& t) {
+
+    size_t const baseSize = getFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = getFdCount(t);
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = baseFds.get();
+    size_t numFds = baseNumFds;
+    native_handle_t* nh;
+    if (flatten(t, &nh, buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (l->unflatten(constBuffer, size, constFds, numFds) != NO_ERROR) {
+        native_handle_close(nh);
+        native_handle_delete(nh);
+        return false;
+    }
+
+    native_handle_delete(nh);
+    return true;
+}
+
+// Ref: frameworks/native/libs/gui/BGraphicBufferProducer.cpp:
+//      BGraphicBufferProducer::QueueBufferOutput
+
+/**
+ * \brief Wrap `BGraphicBufferProducer::QueueBufferOutput` in
+ * `HGraphicBufferProducer::QueueBufferOutput`.
+ *
+ * \param[out] t The wrapper of type
+ * `HGraphicBufferProducer::QueueBufferOutput`.
+ * \param[out] nh The array of array of native handles that are referred to by
+ * members of \p t.
+ * \param[in] l The source `BGraphicBufferProducer::QueueBufferOutput`.
+ *
+ * On success, each member of \p nh will be either `nullptr` or a newly created
+ * native handle. All the non-`nullptr` elements must be deleted individually
+ * with `native_handle_delete()`.
+ */
+// wrap: BGraphicBufferProducer::QueueBufferOutput ->
+// HGraphicBufferProducer::QueueBufferOutput
+inline bool wrapAs(HGraphicBufferProducer::QueueBufferOutput* t,
+        std::vector<std::vector<native_handle_t*> >* nh,
+        BGraphicBufferProducer::QueueBufferOutput const& l) {
+    if (!wrapAs(&(t->frameTimestamps), nh, l.frameTimestamps)) {
+        return false;
+    }
+    t->width = l.width;
+    t->height = l.height;
+    t->transformHint = l.transformHint;
+    t->numPendingBuffers = l.numPendingBuffers;
+    t->nextFrameNumber = l.nextFrameNumber;
+    t->bufferReplaced = l.bufferReplaced;
+    return true;
+}
+
+/**
+ * \brief Convert `HGraphicBufferProducer::QueueBufferOutput` to
+ * `BGraphicBufferProducer::QueueBufferOutput`.
+ *
+ * \param[out] l The destination `BGraphicBufferProducer::QueueBufferOutput`.
+ * \param[in] t The source `HGraphicBufferProducer::QueueBufferOutput`.
+ *
+ * This function will duplicate all file descriptors contained in \p t.
+ */
+// convert: HGraphicBufferProducer::QueueBufferOutput ->
+// BGraphicBufferProducer::QueueBufferOutput
+inline bool convertTo(
+        BGraphicBufferProducer::QueueBufferOutput* l,
+        HGraphicBufferProducer::QueueBufferOutput const& t) {
+    if (!convertTo(&(l->frameTimestamps), t.frameTimestamps)) {
+        return false;
+    }
+    l->width = t.width;
+    l->height = t.height;
+    l->transformHint = t.transformHint;
+    l->numPendingBuffers = t.numPendingBuffers;
+    l->nextFrameNumber = t.nextFrameNumber;
+    l->bufferReplaced = t.bufferReplaced;
+    return true;
+}
+
+/**
+ * \brief Convert `BGraphicBufferProducer::DisconnectMode` to
+ * `HGraphicBufferProducer::DisconnectMode`.
+ *
+ * \param[in] l The source `BGraphicBufferProducer::DisconnectMode`.
+ * \return The corresponding `HGraphicBufferProducer::DisconnectMode`.
+ */
+inline HGraphicBufferProducer::DisconnectMode toOmxDisconnectMode(
+        BGraphicBufferProducer::DisconnectMode l) {
+    switch (l) {
+        case BGraphicBufferProducer::DisconnectMode::Api:
+            return HGraphicBufferProducer::DisconnectMode::API;
+        case BGraphicBufferProducer::DisconnectMode::AllLocal:
+            return HGraphicBufferProducer::DisconnectMode::ALL_LOCAL;
+    }
+    return HGraphicBufferProducer::DisconnectMode::API;
+}
+
+/**
+ * \brief Convert `HGraphicBufferProducer::DisconnectMode` to
+ * `BGraphicBufferProducer::DisconnectMode`.
+ *
+ * \param[in] l The source `HGraphicBufferProducer::DisconnectMode`.
+ * \return The corresponding `BGraphicBufferProducer::DisconnectMode`.
+ */
+inline BGraphicBufferProducer::DisconnectMode toGuiDisconnectMode(
+        HGraphicBufferProducer::DisconnectMode t) {
+    switch (t) {
+        case HGraphicBufferProducer::DisconnectMode::API:
+            return BGraphicBufferProducer::DisconnectMode::Api;
+        case HGraphicBufferProducer::DisconnectMode::ALL_LOCAL:
+            return BGraphicBufferProducer::DisconnectMode::AllLocal;
+    }
+    return BGraphicBufferProducer::DisconnectMode::Api;
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
diff --git a/media/libstagefright/omx/1.0/Omx.cpp b/media/libstagefright/omx/1.0/Omx.cpp
new file mode 100644
index 0000000..64b2c08
--- /dev/null
+++ b/media/libstagefright/omx/1.0/Omx.cpp
@@ -0,0 +1,221 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ios>
+#include <list>
+
+#include <android-base/logging.h>
+#include <gui/IGraphicBufferProducer.h>
+#include <OMX_Core.h>
+#include <OMX_AsString.h>
+
+#include "../OMXUtils.h"
+#include "../OMXMaster.h"
+#include "../GraphicBufferSource.h"
+
+#include "WOmxNode.h"
+#include "WOmxObserver.h"
+#include "WGraphicBufferProducer.h"
+#include "WGraphicBufferSource.h"
+#include "Conversion.h"
+
+#include "Omx.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+constexpr size_t kMaxNodeInstances = (1 << 16);
+
+Omx::Omx() :
+    mMaster(new OMXMaster()),
+    mParser() {
+}
+
+Omx::~Omx() {
+    delete mMaster;
+}
+
+Return<void> Omx::listNodes(listNodes_cb _hidl_cb) {
+    std::list<::android::IOMX::ComponentInfo> list;
+    char componentName[256];
+    for (OMX_U32 index = 0;
+            mMaster->enumerateComponents(
+            componentName, sizeof(componentName), index) == OMX_ErrorNone;
+            ++index) {
+        list.push_back(::android::IOMX::ComponentInfo());
+        ::android::IOMX::ComponentInfo& info = list.back();
+        info.mName = componentName;
+        ::android::Vector<::android::String8> roles;
+        OMX_ERRORTYPE err =
+                mMaster->getRolesOfComponent(componentName, &roles);
+        if (err == OMX_ErrorNone) {
+            for (OMX_U32 i = 0; i < roles.size(); ++i) {
+                info.mRoles.push_back(roles[i]);
+            }
+        }
+    }
+
+    hidl_vec<ComponentInfo> tList;
+    tList.resize(list.size());
+    size_t i = 0;
+    for (auto const& info : list) {
+        convertTo(&(tList[i++]), info);
+    }
+    _hidl_cb(toStatus(OK), tList);
+    return Void();
+}
+
+Return<void> Omx::allocateNode(
+        const hidl_string& name,
+        const sp<IOmxObserver>& observer,
+        allocateNode_cb _hidl_cb) {
+
+    using ::android::IOMXNode;
+    using ::android::IOMXObserver;
+
+    Mutex::Autolock autoLock(mLock);
+    if (mLiveNodes.size() == kMaxNodeInstances) {
+        _hidl_cb(toStatus(NO_MEMORY), nullptr);
+        return Void();
+    }
+
+    sp<OMXNodeInstance> instance = new OMXNodeInstance(
+            this, new LWOmxObserver(observer), name.c_str());
+
+    OMX_COMPONENTTYPE *handle;
+    OMX_ERRORTYPE err = mMaster->makeComponentInstance(
+            name.c_str(), &OMXNodeInstance::kCallbacks,
+            instance.get(), &handle);
+
+    if (err != OMX_ErrorNone) {
+        LOG(ERROR) << "Failed to allocate omx component "
+                "'" << name.c_str() << "' "
+                " err=" << asString(err) <<
+                "(0x" << std::hex << unsigned(err) << ")";
+        _hidl_cb(toStatus(StatusFromOMXError(err)), nullptr);
+        return Void();
+    }
+    instance->setHandle(handle);
+    std::vector<AString> quirkVector;
+    if (mParser.getQuirks(name.c_str(), &quirkVector) == OK) {
+        uint32_t quirks = 0;
+        for (const AString quirk : quirkVector) {
+            if (quirk == "requires-allocate-on-input-ports") {
+                quirks |= kRequiresAllocateBufferOnInputPorts;
+            }
+            if (quirk == "requires-allocate-on-output-ports") {
+                quirks |= kRequiresAllocateBufferOnOutputPorts;
+            }
+        }
+        instance->setQuirks(quirks);
+    }
+
+    mLiveNodes.add(observer.get(), instance);
+    observer->linkToDeath(this, 0);
+    mNode2Observer.add(instance.get(), observer.get());
+
+    _hidl_cb(toStatus(OK), new TWOmxNode(instance));
+    return Void();
+}
+
+Return<void> Omx::createInputSurface(createInputSurface_cb _hidl_cb) {
+    sp<::android::IGraphicBufferProducer> bufferProducer;
+
+    sp<GraphicBufferSource> graphicBufferSource = new GraphicBufferSource();
+    status_t err = graphicBufferSource->initCheck();
+    if (err != OK) {
+        LOG(ERROR) << "Failed to create persistent input surface: "
+                << strerror(-err) << " "
+                "(" << int(err) << ")";
+        _hidl_cb(toStatus(err), nullptr, nullptr);
+        return Void();
+    }
+    bufferProducer = graphicBufferSource->getIGraphicBufferProducer();
+
+    _hidl_cb(toStatus(OK),
+            new TWGraphicBufferProducer(bufferProducer),
+            new TWGraphicBufferSource(graphicBufferSource));
+    return Void();
+}
+
+void Omx::serviceDied(uint64_t /* cookie */, wp<IBase> const& who) {
+    sp<OMXNodeInstance> instance;
+    {
+        Mutex::Autolock autoLock(mLock);
+
+        ssize_t index = mLiveNodes.indexOfKey(who);
+
+        if (index < 0) {
+            LOG(ERROR) << "b/27597103, nonexistent observer on serviceDied";
+            android_errorWriteLog(0x534e4554, "27597103");
+            return;
+        }
+
+        instance = mLiveNodes.editValueAt(index);
+        mLiveNodes.removeItemsAt(index);
+        mNode2Observer.removeItem(instance.get());
+    }
+    instance->onObserverDied();
+}
+
+status_t Omx::freeNode(sp<OMXNodeInstance> const& instance) {
+    if (instance == NULL) {
+        return OK;
+    }
+
+    {
+        Mutex::Autolock autoLock(mLock);
+        ssize_t observerIndex = mNode2Observer.indexOfKey(instance.get());
+        if (observerIndex >= 0) {
+            wp<IBase> observer = mNode2Observer.valueAt(observerIndex);
+            ssize_t nodeIndex = mLiveNodes.indexOfKey(observer);
+            if (nodeIndex >= 0) {
+                mNode2Observer.removeItemsAt(observerIndex);
+                mLiveNodes.removeItemsAt(nodeIndex);
+                sp<IBase> sObserver = observer.promote();
+                if (sObserver != nullptr) {
+                    sObserver->unlinkToDeath(this);
+                }
+            } else {
+                LOG(WARNING) << "Inconsistent observer record";
+            }
+        }
+    }
+
+    OMX_ERRORTYPE err = OMX_ErrorNone;
+    if (instance->handle() != NULL) {
+        err = mMaster->destroyComponentInstance(
+                static_cast<OMX_COMPONENTTYPE*>(instance->handle()));
+    }
+    return StatusFromOMXError(err);
+}
+
+// Methods from ::android::hidl::base::V1_0::IBase follow.
+
+IOmx* HIDL_FETCH_IOmx(const char* /* name */) {
+    return new Omx();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/1.0/Omx.h b/media/libstagefright/omx/1.0/Omx.h
new file mode 100644
index 0000000..23784aa
--- /dev/null
+++ b/media/libstagefright/omx/1.0/Omx.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_OMX_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_OMX_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include "../../include/OMXNodeInstance.h"
+
+#include <android/hardware/media/omx/1.0/IOmx.h>
+#include <media/vndk/xmlparser/1.0/MediaCodecsXmlParser.h>
+
+namespace android {
+
+struct OMXMaster;
+
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::media::omx::V1_0::IOmx;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_death_recipient;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+using ::android::wp;
+
+using ::android::OMXMaster;
+using ::android::OmxNodeOwner;
+using ::android::OMXNodeInstance;
+
+struct Omx : public IOmx, public hidl_death_recipient, public OmxNodeOwner {
+    Omx();
+    virtual ~Omx();
+
+    // Methods from IOmx
+    Return<void> listNodes(listNodes_cb _hidl_cb) override;
+    Return<void> allocateNode(
+            const hidl_string& name,
+            const sp<IOmxObserver>& observer,
+            allocateNode_cb _hidl_cb) override;
+    Return<void> createInputSurface(createInputSurface_cb _hidl_cb) override;
+
+    // Method from hidl_death_recipient
+    void serviceDied(uint64_t cookie, const wp<IBase>& who) override;
+
+    // Method from OmxNodeOwner
+    virtual status_t freeNode(sp<OMXNodeInstance> const& instance) override;
+
+protected:
+    OMXMaster* mMaster;
+    Mutex mLock;
+    KeyedVector<wp<IBase>, sp<OMXNodeInstance> > mLiveNodes;
+    KeyedVector<OMXNodeInstance*, wp<IBase> > mNode2Observer;
+    MediaCodecsXmlParser mParser;
+};
+
+extern "C" IOmx* HIDL_FETCH_IOmx(const char* name);
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_OMX_H
diff --git a/media/libstagefright/omx/1.0/OmxStore.cpp b/media/libstagefright/omx/1.0/OmxStore.cpp
new file mode 100644
index 0000000..0e37af9
--- /dev/null
+++ b/media/libstagefright/omx/1.0/OmxStore.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ios>
+#include <list>
+
+#include <android-base/logging.h>
+
+#include "Conversion.h"
+#include "OmxStore.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+OmxStore::OmxStore() {
+}
+
+OmxStore::~OmxStore() {
+}
+
+Return<void> OmxStore::listServiceAttributes(listServiceAttributes_cb _hidl_cb) {
+    _hidl_cb(toStatus(NO_ERROR), hidl_vec<ServiceAttribute>());
+    return Void();
+}
+
+Return<void> OmxStore::getNodePrefix(getNodePrefix_cb _hidl_cb) {
+    _hidl_cb(hidl_string());
+    return Void();
+}
+
+Return<void> OmxStore::listRoles(listRoles_cb _hidl_cb) {
+    _hidl_cb(hidl_vec<RoleInfo>());
+    return Void();
+}
+
+Return<sp<IOmx>> OmxStore::getOmx(hidl_string const& omxName) {
+    return IOmx::tryGetService(omxName);
+}
+
+// Methods from ::android::hidl::base::V1_0::IBase follow.
+
+IOmxStore* HIDL_FETCH_IOmxStore(const char* /* name */) {
+    return new OmxStore();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/1.0/OmxStore.h b/media/libstagefright/omx/1.0/OmxStore.h
new file mode 100644
index 0000000..f377f5a
--- /dev/null
+++ b/media/libstagefright/omx/1.0/OmxStore.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_OMXSTORE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_OMXSTORE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <android/hardware/media/omx/1.0/IOmxStore.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::media::omx::V1_0::IOmxStore;
+using ::android::hardware::media::omx::V1_0::IOmx;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+using ::android::wp;
+
+struct OmxStore : public IOmxStore {
+    OmxStore();
+    virtual ~OmxStore();
+
+    // Methods from IOmx
+    Return<void> listServiceAttributes(listServiceAttributes_cb) override;
+    Return<void> getNodePrefix(getNodePrefix_cb) override;
+    Return<void> listRoles(listRoles_cb) override;
+    Return<sp<IOmx>> getOmx(hidl_string const&) override;
+};
+
+extern "C" IOmxStore* HIDL_FETCH_IOmxStore(const char* name);
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_OMXSTORE_H
diff --git a/media/libstagefright/omx/1.0/WGraphicBufferProducer.cpp b/media/libstagefright/omx/1.0/WGraphicBufferProducer.cpp
new file mode 100644
index 0000000..650db8e
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WGraphicBufferProducer.cpp
@@ -0,0 +1,353 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "WGraphicBufferProducer-impl"
+
+#include <android-base/logging.h>
+
+#include "WGraphicBufferProducer.h"
+#include "WProducerListener.h"
+#include "Conversion.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+// TWGraphicBufferProducer
+TWGraphicBufferProducer::TWGraphicBufferProducer(
+        sp<BGraphicBufferProducer> const& base):
+    mBase(base) {
+}
+
+Return<void> TWGraphicBufferProducer::requestBuffer(
+        int32_t slot, requestBuffer_cb _hidl_cb) {
+    sp<GraphicBuffer> buf;
+    status_t status = mBase->requestBuffer(slot, &buf);
+    AnwBuffer anwBuffer;
+    wrapAs(&anwBuffer, *buf);
+    _hidl_cb(static_cast<int32_t>(status), anwBuffer);
+    return Void();
+}
+
+Return<int32_t> TWGraphicBufferProducer::setMaxDequeuedBufferCount(
+        int32_t maxDequeuedBuffers) {
+    return static_cast<int32_t>(mBase->setMaxDequeuedBufferCount(
+            static_cast<int>(maxDequeuedBuffers)));
+}
+
+Return<int32_t> TWGraphicBufferProducer::setAsyncMode(bool async) {
+    return static_cast<int32_t>(mBase->setAsyncMode(async));
+}
+
+Return<void> TWGraphicBufferProducer::dequeueBuffer(
+        uint32_t width, uint32_t height,
+        PixelFormat format, uint32_t usage,
+        bool getFrameTimestamps, dequeueBuffer_cb _hidl_cb) {
+    int slot;
+    sp<Fence> fence;
+    ::android::FrameEventHistoryDelta outTimestamps;
+    status_t status = mBase->dequeueBuffer(
+            &slot, &fence,
+            width, height,
+            static_cast<::android::PixelFormat>(format), usage,
+            getFrameTimestamps ? &outTimestamps : nullptr);
+    hidl_handle tFence;
+    FrameEventHistoryDelta tOutTimestamps;
+
+    native_handle_t* nh = nullptr;
+    if ((fence == nullptr) || !wrapAs(&tFence, &nh, *fence)) {
+        LOG(ERROR) << "TWGraphicBufferProducer::dequeueBuffer - "
+                "Invalid output fence";
+        _hidl_cb(static_cast<int32_t>(status),
+                 static_cast<int32_t>(slot),
+                 tFence,
+                 tOutTimestamps);
+        return Void();
+    }
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (getFrameTimestamps && !wrapAs(&tOutTimestamps, &nhAA, outTimestamps)) {
+        LOG(ERROR) << "TWGraphicBufferProducer::dequeueBuffer - "
+                "Invalid output timestamps";
+        _hidl_cb(static_cast<int32_t>(status),
+                 static_cast<int32_t>(slot),
+                 tFence,
+                 tOutTimestamps);
+        native_handle_delete(nh);
+        return Void();
+    }
+
+    _hidl_cb(static_cast<int32_t>(status),
+            static_cast<int32_t>(slot),
+            tFence,
+            tOutTimestamps);
+    native_handle_delete(nh);
+    if (getFrameTimestamps) {
+        for (auto& nhA : nhAA) {
+            for (auto& handle : nhA) {
+                native_handle_delete(handle);
+            }
+        }
+    }
+    return Void();
+}
+
+Return<int32_t> TWGraphicBufferProducer::detachBuffer(int32_t slot) {
+    return static_cast<int32_t>(mBase->detachBuffer(slot));
+}
+
+Return<void> TWGraphicBufferProducer::detachNextBuffer(
+        detachNextBuffer_cb _hidl_cb) {
+    sp<GraphicBuffer> outBuffer;
+    sp<Fence> outFence;
+    status_t status = mBase->detachNextBuffer(&outBuffer, &outFence);
+    AnwBuffer tBuffer;
+    hidl_handle tFence;
+
+    if (outBuffer == nullptr) {
+        LOG(ERROR) << "TWGraphicBufferProducer::detachNextBuffer - "
+                "Invalid output buffer";
+        _hidl_cb(static_cast<int32_t>(status), tBuffer, tFence);
+        return Void();
+    }
+    wrapAs(&tBuffer, *outBuffer);
+    native_handle_t* nh = nullptr;
+    if ((outFence != nullptr) && !wrapAs(&tFence, &nh, *outFence)) {
+        LOG(ERROR) << "TWGraphicBufferProducer::detachNextBuffer - "
+                "Invalid output fence";
+        _hidl_cb(static_cast<int32_t>(status), tBuffer, tFence);
+        return Void();
+    }
+
+    _hidl_cb(static_cast<int32_t>(status), tBuffer, tFence);
+    native_handle_delete(nh);
+    return Void();
+}
+
+Return<void> TWGraphicBufferProducer::attachBuffer(
+        const AnwBuffer& buffer,
+        attachBuffer_cb _hidl_cb) {
+    int outSlot;
+    sp<GraphicBuffer> lBuffer = new GraphicBuffer();
+    if (!convertTo(lBuffer.get(), buffer)) {
+        LOG(ERROR) << "TWGraphicBufferProducer::attachBuffer - "
+                "Invalid input native window buffer";
+        _hidl_cb(static_cast<int32_t>(BAD_VALUE), -1);
+        return Void();
+    }
+    status_t status = mBase->attachBuffer(&outSlot, lBuffer);
+
+    _hidl_cb(static_cast<int32_t>(status), static_cast<int32_t>(outSlot));
+    return Void();
+}
+
+Return<void> TWGraphicBufferProducer::queueBuffer(
+        int32_t slot, const QueueBufferInput& input,
+        queueBuffer_cb _hidl_cb) {
+    QueueBufferOutput tOutput;
+    BGraphicBufferProducer::QueueBufferInput lInput(
+            0, false, HAL_DATASPACE_UNKNOWN,
+            ::android::Rect(0, 0, 1, 1),
+            NATIVE_WINDOW_SCALING_MODE_FREEZE,
+            0, ::android::Fence::NO_FENCE);
+    if (!convertTo(&lInput, input)) {
+        LOG(ERROR) << "TWGraphicBufferProducer::queueBuffer - "
+                "Invalid input";
+        _hidl_cb(static_cast<int32_t>(BAD_VALUE), tOutput);
+        return Void();
+    }
+    BGraphicBufferProducer::QueueBufferOutput lOutput;
+    status_t status = mBase->queueBuffer(
+            static_cast<int>(slot), lInput, &lOutput);
+
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (!wrapAs(&tOutput, &nhAA, lOutput)) {
+        LOG(ERROR) << "TWGraphicBufferProducer::queueBuffer - "
+                "Invalid output";
+        _hidl_cb(static_cast<int32_t>(BAD_VALUE), tOutput);
+        return Void();
+    }
+
+    _hidl_cb(static_cast<int32_t>(status), tOutput);
+    for (auto& nhA : nhAA) {
+        for (auto& nh : nhA) {
+            native_handle_delete(nh);
+        }
+    }
+    return Void();
+}
+
+Return<int32_t> TWGraphicBufferProducer::cancelBuffer(
+        int32_t slot, const hidl_handle& fence) {
+    sp<Fence> lFence = new Fence();
+    if (!convertTo(lFence.get(), fence)) {
+        LOG(ERROR) << "TWGraphicBufferProducer::cancelBuffer - "
+                "Invalid input fence";
+        return static_cast<int32_t>(BAD_VALUE);
+    }
+    return static_cast<int32_t>(mBase->cancelBuffer(static_cast<int>(slot), lFence));
+}
+
+Return<void> TWGraphicBufferProducer::query(int32_t what, query_cb _hidl_cb) {
+    int lValue;
+    int lReturn = mBase->query(static_cast<int>(what), &lValue);
+    _hidl_cb(static_cast<int32_t>(lReturn), static_cast<int32_t>(lValue));
+    return Void();
+}
+
+Return<void> TWGraphicBufferProducer::connect(
+        const sp<HProducerListener>& listener,
+        int32_t api, bool producerControlledByApp, connect_cb _hidl_cb) {
+    sp<BProducerListener> lListener = listener == nullptr ?
+            nullptr : new LWProducerListener(listener);
+    BGraphicBufferProducer::QueueBufferOutput lOutput;
+    status_t status = mBase->connect(lListener,
+            static_cast<int>(api),
+            producerControlledByApp,
+            &lOutput);
+
+    QueueBufferOutput tOutput;
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (!wrapAs(&tOutput, &nhAA, lOutput)) {
+        LOG(ERROR) << "TWGraphicBufferProducer::connect - "
+                "Invalid output";
+        _hidl_cb(static_cast<int32_t>(status), tOutput);
+        return Void();
+    }
+
+    _hidl_cb(static_cast<int32_t>(status), tOutput);
+    for (auto& nhA : nhAA) {
+        for (auto& nh : nhA) {
+            native_handle_delete(nh);
+        }
+    }
+    return Void();
+}
+
+Return<int32_t> TWGraphicBufferProducer::disconnect(
+        int32_t api, DisconnectMode mode) {
+    return static_cast<int32_t>(mBase->disconnect(
+            static_cast<int>(api),
+            toGuiDisconnectMode(mode)));
+}
+
+Return<int32_t> TWGraphicBufferProducer::setSidebandStream(const hidl_handle& stream) {
+    return static_cast<int32_t>(mBase->setSidebandStream(NativeHandle::create(
+            stream ? native_handle_clone(stream) : NULL, true)));
+}
+
+Return<void> TWGraphicBufferProducer::allocateBuffers(
+        uint32_t width, uint32_t height, PixelFormat format, uint32_t usage) {
+    mBase->allocateBuffers(
+            width, height,
+            static_cast<::android::PixelFormat>(format),
+            usage);
+    return Void();
+}
+
+Return<int32_t> TWGraphicBufferProducer::allowAllocation(bool allow) {
+    return static_cast<int32_t>(mBase->allowAllocation(allow));
+}
+
+Return<int32_t> TWGraphicBufferProducer::setGenerationNumber(uint32_t generationNumber) {
+    return static_cast<int32_t>(mBase->setGenerationNumber(generationNumber));
+}
+
+Return<void> TWGraphicBufferProducer::getConsumerName(getConsumerName_cb _hidl_cb) {
+    _hidl_cb(mBase->getConsumerName().string());
+    return Void();
+}
+
+Return<int32_t> TWGraphicBufferProducer::setSharedBufferMode(bool sharedBufferMode) {
+    return static_cast<int32_t>(mBase->setSharedBufferMode(sharedBufferMode));
+}
+
+Return<int32_t> TWGraphicBufferProducer::setAutoRefresh(bool autoRefresh) {
+    return static_cast<int32_t>(mBase->setAutoRefresh(autoRefresh));
+}
+
+Return<int32_t> TWGraphicBufferProducer::setDequeueTimeout(int64_t timeoutNs) {
+    return static_cast<int32_t>(mBase->setDequeueTimeout(timeoutNs));
+}
+
+Return<void> TWGraphicBufferProducer::getLastQueuedBuffer(
+        getLastQueuedBuffer_cb _hidl_cb) {
+    sp<GraphicBuffer> lOutBuffer = new GraphicBuffer();
+    sp<Fence> lOutFence = new Fence();
+    float lOutTransformMatrix[16];
+    status_t status = mBase->getLastQueuedBuffer(
+            &lOutBuffer, &lOutFence, lOutTransformMatrix);
+
+    AnwBuffer tOutBuffer;
+    if (lOutBuffer != nullptr) {
+        wrapAs(&tOutBuffer, *lOutBuffer);
+    }
+    hidl_handle tOutFence;
+    native_handle_t* nh = nullptr;
+    if ((lOutFence == nullptr) || !wrapAs(&tOutFence, &nh, *lOutFence)) {
+        LOG(ERROR) << "TWGraphicBufferProducer::getLastQueuedBuffer - "
+                "Invalid output fence";
+        _hidl_cb(static_cast<int32_t>(status),
+                tOutBuffer,
+                tOutFence,
+                hidl_array<float, 16>());
+        return Void();
+    }
+    hidl_array<float, 16> tOutTransformMatrix(lOutTransformMatrix);
+
+    _hidl_cb(static_cast<int32_t>(status), tOutBuffer, tOutFence, tOutTransformMatrix);
+    native_handle_delete(nh);
+    return Void();
+}
+
+Return<void> TWGraphicBufferProducer::getFrameTimestamps(
+        getFrameTimestamps_cb _hidl_cb) {
+    ::android::FrameEventHistoryDelta lDelta;
+    mBase->getFrameTimestamps(&lDelta);
+
+    FrameEventHistoryDelta tDelta;
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (!wrapAs(&tDelta, &nhAA, lDelta)) {
+        LOG(ERROR) << "TWGraphicBufferProducer::getFrameTimestamps - "
+                "Invalid output frame timestamps";
+        _hidl_cb(tDelta);
+        return Void();
+    }
+
+    _hidl_cb(tDelta);
+    for (auto& nhA : nhAA) {
+        for (auto& nh : nhA) {
+            native_handle_delete(nh);
+        }
+    }
+    return Void();
+}
+
+Return<void> TWGraphicBufferProducer::getUniqueId(getUniqueId_cb _hidl_cb) {
+    uint64_t outId;
+    status_t status = mBase->getUniqueId(&outId);
+    _hidl_cb(static_cast<int32_t>(status), outId);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/1.0/WGraphicBufferProducer.h b/media/libstagefright/omx/1.0/WGraphicBufferProducer.h
new file mode 100644
index 0000000..4a3fe0c
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WGraphicBufferProducer.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERPRODUCER_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERPRODUCER_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/Binder.h>
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/IProducerListener.h>
+
+#include <android/hardware/graphics/bufferqueue/1.0/IGraphicBufferProducer.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::graphics::common::V1_0::PixelFormat;
+using ::android::hardware::media::V1_0::AnwBuffer;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+typedef ::android::hardware::graphics::bufferqueue::V1_0::
+        IGraphicBufferProducer HGraphicBufferProducer;
+typedef ::android::hardware::graphics::bufferqueue::V1_0::
+        IProducerListener HProducerListener;
+
+typedef ::android::IGraphicBufferProducer BGraphicBufferProducer;
+typedef ::android::IProducerListener BProducerListener;
+using ::android::BnGraphicBufferProducer;
+
+struct TWGraphicBufferProducer : public HGraphicBufferProducer {
+    sp<BGraphicBufferProducer> mBase;
+    TWGraphicBufferProducer(sp<BGraphicBufferProducer> const& base);
+    Return<void> requestBuffer(int32_t slot, requestBuffer_cb _hidl_cb)
+            override;
+    Return<int32_t> setMaxDequeuedBufferCount(int32_t maxDequeuedBuffers)
+            override;
+    Return<int32_t> setAsyncMode(bool async) override;
+    Return<void> dequeueBuffer(
+            uint32_t width, uint32_t height, PixelFormat format, uint32_t usage,
+            bool getFrameTimestamps, dequeueBuffer_cb _hidl_cb) override;
+    Return<int32_t> detachBuffer(int32_t slot) override;
+    Return<void> detachNextBuffer(detachNextBuffer_cb _hidl_cb) override;
+    Return<void> attachBuffer(const AnwBuffer& buffer, attachBuffer_cb _hidl_cb)
+            override;
+    Return<void> queueBuffer(
+            int32_t slot, const HGraphicBufferProducer::QueueBufferInput& input,
+            queueBuffer_cb _hidl_cb) override;
+    Return<int32_t> cancelBuffer(int32_t slot, const hidl_handle& fence)
+            override;
+    Return<void> query(int32_t what, query_cb _hidl_cb) override;
+    Return<void> connect(const sp<HProducerListener>& listener,
+            int32_t api, bool producerControlledByApp,
+            connect_cb _hidl_cb) override;
+    Return<int32_t> disconnect(
+            int32_t api,
+            HGraphicBufferProducer::DisconnectMode mode) override;
+    Return<int32_t> setSidebandStream(const hidl_handle& stream) override;
+    Return<void> allocateBuffers(
+            uint32_t width, uint32_t height,
+            PixelFormat format, uint32_t usage) override;
+    Return<int32_t> allowAllocation(bool allow) override;
+    Return<int32_t> setGenerationNumber(uint32_t generationNumber) override;
+    Return<void> getConsumerName(getConsumerName_cb _hidl_cb) override;
+    Return<int32_t> setSharedBufferMode(bool sharedBufferMode) override;
+    Return<int32_t> setAutoRefresh(bool autoRefresh) override;
+    Return<int32_t> setDequeueTimeout(int64_t timeoutNs) override;
+    Return<void> getLastQueuedBuffer(getLastQueuedBuffer_cb _hidl_cb) override;
+    Return<void> getFrameTimestamps(getFrameTimestamps_cb _hidl_cb) override;
+    Return<void> getUniqueId(getUniqueId_cb _hidl_cb) override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERPRODUCER_H
diff --git a/media/libstagefright/omx/1.0/WGraphicBufferSource.cpp b/media/libstagefright/omx/1.0/WGraphicBufferSource.cpp
new file mode 100644
index 0000000..e876306
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WGraphicBufferSource.cpp
@@ -0,0 +1,232 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "TWGraphicBufferSource"
+
+#include <android/hardware/media/omx/1.0/IOmxBufferSource.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <OMX_Component.h>
+#include <OMX_IndexExt.h>
+
+#include "omx/OMXUtils.h"
+#include "WGraphicBufferSource.h"
+#include "WOmxNode.h"
+#include "Conversion.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+static const OMX_U32 kPortIndexInput = 0;
+
+struct TWGraphicBufferSource::TWOmxNodeWrapper : public IOmxNodeWrapper {
+    sp<IOmxNode> mOmxNode;
+
+    TWOmxNodeWrapper(const sp<IOmxNode> &omxNode): mOmxNode(omxNode) {
+    }
+
+    virtual status_t emptyBuffer(
+            int32_t bufferId, uint32_t flags,
+            const sp<GraphicBuffer> &buffer,
+            int64_t timestamp, int fenceFd) override {
+        CodecBuffer tBuffer;
+        native_handle_t* fenceNh = native_handle_create_from_fd(fenceFd);
+        status_t err = toStatusT(mOmxNode->emptyBuffer(
+              bufferId,
+              *wrapAs(&tBuffer, buffer),
+              flags,
+              toRawTicks(timestamp),
+              fenceNh));
+        native_handle_close(fenceNh);
+        native_handle_delete(fenceNh);
+        return err;
+    }
+
+    virtual void dispatchDataSpaceChanged(
+            int32_t dataSpace, int32_t aspects, int32_t pixelFormat) override {
+        Message tMsg;
+        tMsg.type = Message::Type::EVENT;
+        tMsg.fence = native_handle_create(0, 0);
+        tMsg.data.eventData.event = uint32_t(OMX_EventDataSpaceChanged);
+        tMsg.data.eventData.data1 = dataSpace;
+        tMsg.data.eventData.data2 = aspects;
+        tMsg.data.eventData.data3 = pixelFormat;
+        mOmxNode->dispatchMessage(tMsg);
+    }
+};
+
+struct TWGraphicBufferSource::TWOmxBufferSource : public IOmxBufferSource {
+    sp<GraphicBufferSource> mSource;
+
+    TWOmxBufferSource(const sp<GraphicBufferSource> &source): mSource(source) {
+    }
+
+    Return<void> onOmxExecuting() override {
+        mSource->onOmxExecuting();
+        return Void();
+    }
+
+    Return<void> onOmxIdle() override {
+        mSource->onOmxIdle();
+        return Void();
+    }
+
+    Return<void> onOmxLoaded() override {
+        mSource->onOmxLoaded();
+        return Void();
+    }
+
+    Return<void> onInputBufferAdded(uint32_t bufferId) override {
+        mSource->onInputBufferAdded(static_cast<int32_t>(bufferId));
+        return Void();
+    }
+
+    Return<void> onInputBufferEmptied(
+            uint32_t bufferId, hidl_handle const& tFence) override {
+        mSource->onInputBufferEmptied(
+                static_cast<int32_t>(bufferId),
+                native_handle_read_fd(tFence));
+        return Void();
+    }
+};
+
+// TWGraphicBufferSource
+TWGraphicBufferSource::TWGraphicBufferSource(
+        sp<GraphicBufferSource> const& base) :
+    mBase(base),
+    mOmxBufferSource(new TWOmxBufferSource(base)) {
+}
+
+Return<Status> TWGraphicBufferSource::configure(
+        const sp<IOmxNode>& omxNode, Dataspace dataspace) {
+    if (omxNode == NULL) {
+        return toStatus(BAD_VALUE);
+    }
+
+    // Do setInputSurface() first, the node will try to enable metadata
+    // mode on input, and does necessary error checking. If this fails,
+    // we can't use this input surface on the node.
+    Return<Status> err(omxNode->setInputSurface(mOmxBufferSource));
+    status_t fnStatus = toStatusT(err);
+    if (fnStatus != NO_ERROR) {
+        ALOGE("Unable to set input surface: %d", fnStatus);
+        return err;
+    }
+
+    // use consumer usage bits queried from encoder, but always add
+    // HW_VIDEO_ENCODER for backward compatibility.
+    uint32_t  consumerUsage;
+    void *_params = &consumerUsage;
+    uint8_t *params = static_cast<uint8_t*>(_params);
+    fnStatus = UNKNOWN_ERROR;
+    IOmxNode::getParameter_cb _hidl_cb(
+            [&fnStatus, &params](Status status, hidl_vec<uint8_t> const& outParams) {
+                fnStatus = toStatusT(status);
+                std::copy(
+                        outParams.data(),
+                        outParams.data() + outParams.size(),
+                        params);
+            });
+    omxNode->getParameter(
+            static_cast<uint32_t>(OMX_IndexParamConsumerUsageBits),
+            inHidlBytes(&consumerUsage, sizeof(consumerUsage)),
+            _hidl_cb);
+    if (fnStatus != OK) {
+        consumerUsage = 0;
+    }
+
+    OMX_PARAM_PORTDEFINITIONTYPE def;
+    InitOMXParams(&def);
+    def.nPortIndex = kPortIndexInput;
+
+    _params = &def;
+    params = static_cast<uint8_t*>(_params);
+    omxNode->getParameter(
+            static_cast<uint32_t>(OMX_IndexParamPortDefinition),
+            inHidlBytes(&def, sizeof(def)),
+            _hidl_cb);
+    if (fnStatus != NO_ERROR) {
+        ALOGE("Failed to get port definition: %d", fnStatus);
+        return toStatus(fnStatus);
+    }
+
+
+    return toStatus(mBase->configure(
+            new TWOmxNodeWrapper(omxNode),
+            toRawDataspace(dataspace),
+            def.nBufferCountActual,
+            def.format.video.nFrameWidth,
+            def.format.video.nFrameHeight,
+            consumerUsage));
+}
+
+Return<Status> TWGraphicBufferSource::setSuspend(
+        bool suspend, int64_t timeUs) {
+    return toStatus(mBase->setSuspend(suspend, timeUs));
+}
+
+Return<Status> TWGraphicBufferSource::setRepeatPreviousFrameDelayUs(
+        int64_t repeatAfterUs) {
+    return toStatus(mBase->setRepeatPreviousFrameDelayUs(repeatAfterUs));
+}
+
+Return<Status> TWGraphicBufferSource::setMaxFps(float maxFps) {
+    return toStatus(mBase->setMaxFps(maxFps));
+}
+
+Return<Status> TWGraphicBufferSource::setTimeLapseConfig(
+        double fps, double captureFps) {
+    return toStatus(mBase->setTimeLapseConfig(fps, captureFps));
+}
+
+Return<Status> TWGraphicBufferSource::setStartTimeUs(int64_t startTimeUs) {
+    return toStatus(mBase->setStartTimeUs(startTimeUs));
+}
+
+Return<Status> TWGraphicBufferSource::setStopTimeUs(int64_t stopTimeUs) {
+    return toStatus(mBase->setStopTimeUs(stopTimeUs));
+}
+
+Return<void> TWGraphicBufferSource::getStopTimeOffsetUs(
+        getStopTimeOffsetUs_cb _hidl_cb) {
+    // TODO: Implement this when needed.
+    _hidl_cb(Status::OK, 0);
+    return Void();
+}
+
+Return<Status> TWGraphicBufferSource::setColorAspects(
+        const ColorAspects& aspects) {
+    return toStatus(mBase->setColorAspects(toCompactColorAspects(aspects)));
+}
+
+Return<Status> TWGraphicBufferSource::setTimeOffsetUs(int64_t timeOffsetUs) {
+    return toStatus(mBase->setTimeOffsetUs(timeOffsetUs));
+}
+
+Return<Status> TWGraphicBufferSource::signalEndOfInputStream() {
+    return toStatus(mBase->signalEndOfInputStream());
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/1.0/WGraphicBufferSource.h b/media/libstagefright/omx/1.0/WGraphicBufferSource.h
new file mode 100644
index 0000000..4549c97
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WGraphicBufferSource.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <android/hardware/media/omx/1.0/IGraphicBufferSource.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/graphics/common/1.0/types.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IGraphicBufferSource.h>
+
+#include <android/BnGraphicBufferSource.h>
+
+#include "../GraphicBufferSource.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::GraphicBufferSource;
+using ::android::hardware::graphics::common::V1_0::Dataspace;
+using ::android::hardware::media::omx::V1_0::ColorAspects;
+using ::android::hardware::media::omx::V1_0::IGraphicBufferSource;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::IOMXNode;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+typedef ::android::hardware::media::omx::V1_0::IGraphicBufferSource
+        TGraphicBufferSource;
+
+struct TWGraphicBufferSource : public TGraphicBufferSource {
+    struct TWOmxNodeWrapper;
+    struct TWOmxBufferSource;
+    sp<GraphicBufferSource> mBase;
+    sp<IOmxBufferSource> mOmxBufferSource;
+
+    TWGraphicBufferSource(sp<GraphicBufferSource> const& base);
+    Return<Status> configure(
+            const sp<IOmxNode>& omxNode, Dataspace dataspace) override;
+    Return<Status> setSuspend(bool suspend, int64_t timeUs) override;
+    Return<Status> setRepeatPreviousFrameDelayUs(int64_t repeatAfterUs) override;
+    Return<Status> setMaxFps(float maxFps) override;
+    Return<Status> setTimeLapseConfig(double fps, double captureFps) override;
+    Return<Status> setStartTimeUs(int64_t startTimeUs) override;
+    Return<Status> setStopTimeUs(int64_t stopTimeUs) override;
+    Return<void> getStopTimeOffsetUs(getStopTimeOffsetUs_cb _hidl_cb) override;
+    Return<Status> setColorAspects(const ColorAspects& aspects) override;
+    Return<Status> setTimeOffsetUs(int64_t timeOffsetUs) override;
+    Return<Status> signalEndOfInputStream() override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
diff --git a/media/libstagefright/omx/1.0/WOmxBufferSource.cpp b/media/libstagefright/omx/1.0/WOmxBufferSource.cpp
new file mode 100644
index 0000000..803283a
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WOmxBufferSource.cpp
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <utils/String8.h>
+
+#include "WOmxBufferSource.h"
+#include "Conversion.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+// LWOmxBufferSource
+LWOmxBufferSource::LWOmxBufferSource(sp<IOmxBufferSource> const& base) :
+    mBase(base) {
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxExecuting() {
+    return toBinderStatus(mBase->onOmxExecuting());
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxIdle() {
+    return toBinderStatus(mBase->onOmxIdle());
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxLoaded() {
+    return toBinderStatus(mBase->onOmxLoaded());
+}
+
+::android::binder::Status LWOmxBufferSource::onInputBufferAdded(
+        int32_t bufferId) {
+    return toBinderStatus(mBase->onInputBufferAdded(
+            static_cast<uint32_t>(bufferId)));
+}
+
+::android::binder::Status LWOmxBufferSource::onInputBufferEmptied(
+        int32_t bufferId, OMXFenceParcelable const& fenceParcel) {
+    hidl_handle fence;
+    native_handle_t* fenceNh;
+    if (!wrapAs(&fence, &fenceNh, fenceParcel)) {
+        return ::android::binder::Status::fromExceptionCode(
+                ::android::binder::Status::EX_BAD_PARCELABLE,
+                "Invalid fence");
+    }
+    ::android::binder::Status status = toBinderStatus(
+            mBase->onInputBufferEmptied(
+            static_cast<uint32_t>(bufferId), fence));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+
+// TWOmxBufferSource
+TWOmxBufferSource::TWOmxBufferSource(sp<IOMXBufferSource> const& base) :
+    mBase(base) {
+}
+
+Return<void> TWOmxBufferSource::onOmxExecuting() {
+    mBase->onOmxExecuting();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onOmxIdle() {
+    mBase->onOmxIdle();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onOmxLoaded() {
+    mBase->onOmxLoaded();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onInputBufferAdded(uint32_t buffer) {
+    mBase->onInputBufferAdded(int32_t(buffer));
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onInputBufferEmptied(
+        uint32_t buffer, hidl_handle const& fence) {
+    OMXFenceParcelable fenceParcelable;
+    if (!convertTo(&fenceParcelable, fence)) {
+        return Void();
+    }
+    mBase->onInputBufferEmptied(int32_t(buffer), fenceParcelable);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/1.0/WOmxBufferSource.h b/media/libstagefright/omx/1.0/WOmxBufferSource.h
new file mode 100644
index 0000000..9b27796
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WOmxBufferSource.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/Binder.h>
+#include <media/OMXFenceParcelable.h>
+
+#include <android/hardware/media/omx/1.0/IOmxBufferSource.h>
+#include <android/BnOMXBufferSource.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::OMXFenceParcelable;
+using ::android::IOMXBufferSource;
+using ::android::BnOMXBufferSource;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxBufferSource : public BnOMXBufferSource {
+    sp<IOmxBufferSource> mBase;
+    LWOmxBufferSource(sp<IOmxBufferSource> const& base);
+    ::android::binder::Status onOmxExecuting() override;
+    ::android::binder::Status onOmxIdle() override;
+    ::android::binder::Status onOmxLoaded() override;
+    ::android::binder::Status onInputBufferAdded(int32_t bufferID) override;
+    ::android::binder::Status onInputBufferEmptied(
+            int32_t bufferID, OMXFenceParcelable const& fenceParcel) override;
+};
+
+struct TWOmxBufferSource : public IOmxBufferSource {
+    sp<IOMXBufferSource> mBase;
+    TWOmxBufferSource(sp<IOMXBufferSource> const& base);
+    Return<void> onOmxExecuting() override;
+    Return<void> onOmxIdle() override;
+    Return<void> onOmxLoaded() override;
+    Return<void> onInputBufferAdded(uint32_t buffer) override;
+    Return<void> onInputBufferEmptied(
+            uint32_t buffer, hidl_handle const& fence) override;
+};
+
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
diff --git a/media/libstagefright/omx/1.0/WOmxNode.cpp b/media/libstagefright/omx/1.0/WOmxNode.cpp
new file mode 100644
index 0000000..ab15061
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WOmxNode.cpp
@@ -0,0 +1,431 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <algorithm>
+
+#include "WOmxNode.h"
+#include "WOmxBufferSource.h"
+#include "Conversion.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::Void;
+
+// LWOmxNode
+LWOmxNode::LWOmxNode(sp<IOmxNode> const& base) : mBase(base) {
+}
+
+status_t LWOmxNode::freeNode() {
+    return toStatusT(mBase->freeNode());
+}
+
+status_t LWOmxNode::sendCommand(
+        OMX_COMMANDTYPE cmd, OMX_S32 param) {
+    return toStatusT(mBase->sendCommand(
+            toRawCommandType(cmd), param));
+}
+
+status_t LWOmxNode::getParameter(
+        OMX_INDEXTYPE index, void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getParameter(
+            toRawIndexType(index),
+            tParams,
+            [&fnStatus, params, size](
+                    Status status, hidl_vec<uint8_t> const& outParams) {
+                fnStatus = toStatusT(status);
+                std::copy(
+                        outParams.data(),
+                        outParams.data() + outParams.size(),
+                        static_cast<uint8_t*>(params));
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setParameter(
+        OMX_INDEXTYPE index, const void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    return toStatusT(mBase->setParameter(
+            toRawIndexType(index), tParams));
+}
+
+status_t LWOmxNode::getConfig(
+        OMX_INDEXTYPE index, void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getConfig(
+            toRawIndexType(index),
+            tParams,
+            [&fnStatus, params, size](
+                    Status status, hidl_vec<uint8_t> const& outParams) {
+                fnStatus = toStatusT(status);
+                std::copy(
+                        outParams.data(),
+                        outParams.data() + size,
+                        static_cast<uint8_t*>(params));
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setConfig(
+        OMX_INDEXTYPE index, const void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    return toStatusT(mBase->setConfig(toRawIndexType(index), tParams));
+}
+
+status_t LWOmxNode::setPortMode(
+        OMX_U32 port_index, IOMX::PortMode mode) {
+    return toStatusT(mBase->setPortMode(port_index, toHardwarePortMode(mode)));
+}
+
+status_t LWOmxNode::prepareForAdaptivePlayback(
+        OMX_U32 portIndex, OMX_BOOL enable,
+        OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) {
+    return toStatusT(mBase->prepareForAdaptivePlayback(
+            portIndex, toRawBool(enable), maxFrameWidth, maxFrameHeight));
+}
+
+status_t LWOmxNode::configureVideoTunnelMode(
+        OMX_U32 portIndex, OMX_BOOL tunneled,
+        OMX_U32 audioHwSync, native_handle_t **sidebandHandle) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->configureVideoTunnelMode(
+            portIndex,
+            toRawBool(tunneled),
+            audioHwSync,
+            [&fnStatus, sidebandHandle](
+                    Status status, hidl_handle const& outSidebandHandle) {
+                fnStatus = toStatusT(status);
+                *sidebandHandle = outSidebandHandle == nullptr ?
+                        nullptr : native_handle_clone(outSidebandHandle);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::getGraphicBufferUsage(
+        OMX_U32 portIndex, OMX_U32* usage) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getGraphicBufferUsage(
+            portIndex,
+            [&fnStatus, usage](
+                    Status status, uint32_t outUsage) {
+                fnStatus = toStatusT(status);
+                *usage = outUsage;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setInputSurface(
+        const sp<IOMXBufferSource> &bufferSource) {
+    return toStatusT(mBase->setInputSurface(
+            new TWOmxBufferSource(bufferSource)));
+}
+
+status_t LWOmxNode::allocateSecureBuffer(
+        OMX_U32 portIndex, size_t size, buffer_id *buffer,
+        void **buffer_data, sp<NativeHandle> *native_handle) {
+    *buffer_data = nullptr;
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->allocateSecureBuffer(
+            portIndex,
+            static_cast<uint64_t>(size),
+            [&fnStatus, buffer, buffer_data, native_handle](
+                    Status status,
+                    uint32_t outBuffer,
+                    hidl_handle const& outNativeHandle) {
+                fnStatus = toStatusT(status);
+                *buffer = outBuffer;
+                *native_handle = NativeHandle::create(
+                        native_handle_clone(outNativeHandle), true);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::useBuffer(
+        OMX_U32 portIndex, const OMXBuffer &omxBuffer, buffer_id *buffer) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->useBuffer(
+            portIndex,
+            codecBuffer,
+            [&fnStatus, buffer](Status status, uint32_t outBuffer) {
+                fnStatus = toStatusT(status);
+                *buffer = outBuffer;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::freeBuffer(
+        OMX_U32 portIndex, buffer_id buffer) {
+    return toStatusT(mBase->freeBuffer(portIndex, buffer));
+}
+
+status_t LWOmxNode::fillBuffer(
+        buffer_id buffer, const OMXBuffer &omxBuffer, int fenceFd) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    native_handle_t* fenceNh = native_handle_create_from_fd(fenceFd);
+    if (!fenceNh) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->fillBuffer(
+            buffer, codecBuffer, fenceNh));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+
+status_t LWOmxNode::emptyBuffer(
+        buffer_id buffer, const OMXBuffer &omxBuffer,
+        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    native_handle_t* fenceNh = native_handle_create_from_fd(fenceFd);
+    if (!fenceNh) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->emptyBuffer(
+            buffer,
+            codecBuffer,
+            flags,
+            toRawTicks(timestamp),
+            fenceNh));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+status_t LWOmxNode::getExtensionIndex(
+        const char *parameter_name,
+        OMX_INDEXTYPE *index) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getExtensionIndex(
+            hidl_string(parameter_name),
+            [&fnStatus, index](Status status, uint32_t outIndex) {
+                fnStatus = toStatusT(status);
+                *index = toEnumIndexType(outIndex);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::dispatchMessage(const omx_message &lMsg) {
+    Message tMsg;
+    native_handle_t* nh;
+    if (!wrapAs(&tMsg, &nh, lMsg)) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->dispatchMessage(tMsg));
+    native_handle_close(nh);
+    native_handle_delete(nh);
+    return status;
+}
+
+// TWOmxNode
+TWOmxNode::TWOmxNode(sp<IOMXNode> const& base) : mBase(base) {
+}
+
+Return<Status> TWOmxNode::freeNode() {
+    return toStatus(mBase->freeNode());
+}
+
+Return<Status> TWOmxNode::sendCommand(uint32_t cmd, int32_t param) {
+    return toStatus(mBase->sendCommand(toEnumCommandType(cmd), param));
+}
+
+Return<void> TWOmxNode::getParameter(
+        uint32_t index, hidl_vec<uint8_t> const& inParams,
+        getParameter_cb _hidl_cb) {
+    hidl_vec<uint8_t> params(inParams);
+    Status status = toStatus(mBase->getParameter(
+            toEnumIndexType(index),
+            static_cast<void*>(params.data()),
+            params.size()));
+    _hidl_cb(status, params);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setParameter(
+        uint32_t index, hidl_vec<uint8_t> const& inParams) {
+    hidl_vec<uint8_t> params(inParams);
+    return toStatus(mBase->setParameter(
+            toEnumIndexType(index),
+            static_cast<void const*>(params.data()),
+            params.size()));
+}
+
+Return<void> TWOmxNode::getConfig(
+        uint32_t index, const hidl_vec<uint8_t>& inConfig,
+        getConfig_cb _hidl_cb) {
+    hidl_vec<uint8_t> config(inConfig);
+    Status status = toStatus(mBase->getConfig(
+            toEnumIndexType(index),
+            static_cast<void*>(config.data()),
+            config.size()));
+    _hidl_cb(status, config);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setConfig(
+        uint32_t index, const hidl_vec<uint8_t>& inConfig) {
+    hidl_vec<uint8_t> config(inConfig);
+    return toStatus(mBase->setConfig(
+            toEnumIndexType(index),
+            static_cast<void const*>(config.data()),
+            config.size()));
+}
+
+Return<Status> TWOmxNode::setPortMode(uint32_t portIndex, PortMode mode) {
+    return toStatus(mBase->setPortMode(portIndex, toIOMXPortMode(mode)));
+}
+
+Return<Status> TWOmxNode::prepareForAdaptivePlayback(
+        uint32_t portIndex, bool enable,
+        uint32_t maxFrameWidth, uint32_t maxFrameHeight) {
+    return toStatus(mBase->prepareForAdaptivePlayback(
+            portIndex,
+            toEnumBool(enable),
+            maxFrameWidth,
+            maxFrameHeight));
+}
+
+Return<void> TWOmxNode::configureVideoTunnelMode(
+        uint32_t portIndex, bool tunneled, uint32_t audioHwSync,
+        configureVideoTunnelMode_cb _hidl_cb) {
+    native_handle_t* sidebandHandle = nullptr;
+    Status status = toStatus(mBase->configureVideoTunnelMode(
+            portIndex,
+            toEnumBool(tunneled),
+            audioHwSync,
+            &sidebandHandle));
+    _hidl_cb(status, hidl_handle(sidebandHandle));
+    return Void();
+}
+
+Return<void> TWOmxNode::getGraphicBufferUsage(
+        uint32_t portIndex, getGraphicBufferUsage_cb _hidl_cb) {
+    OMX_U32 usage;
+    Status status = toStatus(mBase->getGraphicBufferUsage(
+            portIndex, &usage));
+    _hidl_cb(status, usage);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setInputSurface(
+        const sp<IOmxBufferSource>& bufferSource) {
+    return toStatus(mBase->setInputSurface(new LWOmxBufferSource(
+            bufferSource)));
+}
+
+Return<void> TWOmxNode::allocateSecureBuffer(
+        uint32_t portIndex, uint64_t size,
+        allocateSecureBuffer_cb _hidl_cb) {
+    IOMX::buffer_id buffer;
+    void* bufferData;
+    sp<NativeHandle> nativeHandle;
+    Status status = toStatus(mBase->allocateSecureBuffer(
+            portIndex,
+            static_cast<size_t>(size),
+            &buffer,
+            &bufferData,
+            &nativeHandle));
+    _hidl_cb(status, buffer, nativeHandle == nullptr ?
+            nullptr : nativeHandle->handle());
+    return Void();
+}
+
+Return<void> TWOmxNode::useBuffer(
+        uint32_t portIndex, const CodecBuffer& codecBuffer,
+        useBuffer_cb _hidl_cb) {
+    IOMX::buffer_id buffer;
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        _hidl_cb(Status::BAD_VALUE, 0);
+        return Void();
+    }
+    Status status = toStatus(mBase->useBuffer(
+            portIndex, omxBuffer, &buffer));
+    _hidl_cb(status, buffer);
+    return Void();
+}
+
+Return<Status> TWOmxNode::freeBuffer(uint32_t portIndex, uint32_t buffer) {
+    return toStatus(mBase->freeBuffer(portIndex, buffer));
+}
+
+Return<Status> TWOmxNode::fillBuffer(
+        uint32_t buffer, const CodecBuffer& codecBuffer,
+        const hidl_handle& fence) {
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->fillBuffer(
+            buffer,
+            omxBuffer,
+            dup(native_handle_read_fd(fence))));
+}
+
+Return<Status> TWOmxNode::emptyBuffer(
+        uint32_t buffer, const CodecBuffer& codecBuffer, uint32_t flags,
+        uint64_t timestampUs, const hidl_handle& fence) {
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->emptyBuffer(
+            buffer,
+            omxBuffer,
+            flags,
+            toOMXTicks(timestampUs),
+            dup(native_handle_read_fd(fence))));
+}
+
+Return<void> TWOmxNode::getExtensionIndex(
+        const hidl_string& parameterName,
+        getExtensionIndex_cb _hidl_cb) {
+    OMX_INDEXTYPE index;
+    Status status = toStatus(mBase->getExtensionIndex(
+            parameterName.c_str(), &index));
+    _hidl_cb(status, toRawIndexType(index));
+    return Void();
+}
+
+Return<Status> TWOmxNode::dispatchMessage(const Message& tMsg) {
+    omx_message lMsg;
+    if (!convertTo(&lMsg, tMsg)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->dispatchMessage(lMsg));
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/1.0/WOmxNode.h b/media/libstagefright/omx/1.0/WOmxNode.h
new file mode 100644
index 0000000..d715374
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WOmxNode.h
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <utils/Errors.h>
+
+#include "../../include/OMXNodeInstance.h"
+
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::media::omx::V1_0::CodecBuffer;
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::hardware::media::omx::V1_0::PortMode;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxNode : public BnOMXNode {
+    sp<IOmxNode> mBase;
+    LWOmxNode(sp<IOmxNode> const& base);
+    status_t freeNode() override;
+    status_t sendCommand(
+            OMX_COMMANDTYPE cmd, OMX_S32 param) override;
+    status_t getParameter(
+            OMX_INDEXTYPE index, void *params, size_t size) override;
+    status_t setParameter(
+            OMX_INDEXTYPE index, const void *params, size_t size) override;
+    status_t getConfig(
+            OMX_INDEXTYPE index, void *params, size_t size) override;
+    status_t setConfig(
+            OMX_INDEXTYPE index, const void *params, size_t size) override;
+    status_t setPortMode(
+            OMX_U32 port_index, IOMX::PortMode mode) override;
+    status_t prepareForAdaptivePlayback(
+            OMX_U32 portIndex, OMX_BOOL enable,
+            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) override;
+    status_t configureVideoTunnelMode(
+            OMX_U32 portIndex, OMX_BOOL tunneled,
+            OMX_U32 audioHwSync, native_handle_t **sidebandHandle) override;
+    status_t getGraphicBufferUsage(
+            OMX_U32 port_index, OMX_U32* usage) override;
+    status_t setInputSurface(
+            const sp<IOMXBufferSource> &bufferSource) override;
+    status_t allocateSecureBuffer(
+            OMX_U32 port_index, size_t size, buffer_id *buffer,
+            void **buffer_data, sp<NativeHandle> *native_handle) override;
+    status_t useBuffer(
+            OMX_U32 port_index, const OMXBuffer &omxBuf,
+            buffer_id *buffer) override;
+    status_t freeBuffer(
+            OMX_U32 port_index, buffer_id buffer) override;
+    status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            int fenceFd = -1) override;
+    status_t emptyBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1) override;
+    status_t getExtensionIndex(
+            const char *parameter_name,
+            OMX_INDEXTYPE *index) override;
+    status_t dispatchMessage(const omx_message &msg) override;
+};
+
+struct TWOmxNode : public IOmxNode {
+    sp<IOMXNode> mBase;
+    TWOmxNode(sp<IOMXNode> const& base);
+
+    Return<Status> freeNode() override;
+    Return<Status> sendCommand(uint32_t cmd, int32_t param) override;
+    Return<void> getParameter(
+            uint32_t index, hidl_vec<uint8_t> const& inParams,
+            getParameter_cb _hidl_cb) override;
+    Return<Status> setParameter(
+            uint32_t index, hidl_vec<uint8_t> const& params) override;
+    Return<void> getConfig(
+            uint32_t index, hidl_vec<uint8_t> const& inConfig,
+            getConfig_cb _hidl_cb) override;
+    Return<Status> setConfig(
+            uint32_t index, hidl_vec<uint8_t> const& config) override;
+    Return<Status> setPortMode(uint32_t portIndex, PortMode mode) override;
+    Return<Status> prepareForAdaptivePlayback(
+            uint32_t portIndex, bool enable,
+            uint32_t maxFrameWidth, uint32_t maxFrameHeight) override;
+    Return<void> configureVideoTunnelMode(
+            uint32_t portIndex, bool tunneled, uint32_t audioHwSync,
+            configureVideoTunnelMode_cb _hidl_cb) override;
+    Return<void> getGraphicBufferUsage(
+            uint32_t portIndex,
+            getGraphicBufferUsage_cb _hidl_cb) override;
+    Return<Status> setInputSurface(
+            sp<IOmxBufferSource> const& bufferSource) override;
+    Return<void> allocateSecureBuffer(
+            uint32_t portIndex, uint64_t size,
+            allocateSecureBuffer_cb _hidl_cb) override;
+    Return<void> useBuffer(
+            uint32_t portIndex, CodecBuffer const& codecBuffer,
+            useBuffer_cb _hidl_cb) override;
+    Return<Status> freeBuffer(uint32_t portIndex, uint32_t buffer) override;
+    Return<Status> fillBuffer(
+            uint32_t buffer, CodecBuffer const& codecBuffer,
+            const hidl_handle& fence) override;
+    Return<Status> emptyBuffer(
+            uint32_t buffer, CodecBuffer const& codecBuffer,
+            uint32_t flags, uint64_t timestampUs,
+            hidl_handle const& fence) override;
+    Return<void> getExtensionIndex(
+            hidl_string const& parameterName,
+            getExtensionIndex_cb _hidl_cb) override;
+    Return<Status> dispatchMessage(Message const& msg) override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
diff --git a/media/libstagefright/omx/1.0/WOmxObserver.cpp b/media/libstagefright/omx/1.0/WOmxObserver.cpp
new file mode 100644
index 0000000..354db29
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WOmxObserver.cpp
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "WOmxObserver-impl"
+
+#include <vector>
+
+#include <android-base/logging.h>
+#include <cutils/native_handle.h>
+#include <binder/Binder.h>
+
+#include "WOmxObserver.h"
+#include "Conversion.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+// LWOmxObserver
+LWOmxObserver::LWOmxObserver(sp<IOmxObserver> const& base) : mBase(base) {
+}
+
+void LWOmxObserver::onMessages(std::list<omx_message> const& lMessages) {
+    hidl_vec<Message> tMessages;
+    std::vector<native_handle_t*> handles(lMessages.size());
+    tMessages.resize(lMessages.size());
+    size_t i = 0;
+    for (auto const& message : lMessages) {
+        wrapAs(&tMessages[i], &handles[i], message);
+        ++i;
+    }
+    auto transResult = mBase->onMessages(tMessages);
+    if (!transResult.isOk()) {
+        LOG(ERROR) << "LWOmxObserver::onMessages - Transaction failed";
+    }
+    for (auto& handle : handles) {
+        native_handle_close(handle);
+        native_handle_delete(handle);
+    }
+}
+
+// TWOmxObserver
+TWOmxObserver::TWOmxObserver(sp<IOMXObserver> const& base) : mBase(base) {
+}
+
+Return<void> TWOmxObserver::onMessages(const hidl_vec<Message>& tMessages) {
+    std::list<omx_message> lMessages;
+    for (size_t i = 0; i < tMessages.size(); ++i) {
+        lMessages.push_back(omx_message{});
+        convertTo(&lMessages.back(), tMessages[i]);
+    }
+    mBase->onMessages(lMessages);
+    return Return<void>();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/1.0/WOmxObserver.h b/media/libstagefright/omx/1.0/WOmxObserver.h
new file mode 100644
index 0000000..7075513
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WOmxObserver.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
+
+#include <list>
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <media/IOMX.h>
+
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::IOMXObserver;
+using ::android::BnOMXObserver;
+using ::android::omx_message;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxObserver : public BnOMXObserver {
+    sp<IOmxObserver> mBase;
+    LWOmxObserver(sp<IOmxObserver> const& base);
+    void onMessages(std::list<omx_message> const& lMessages) override;
+};
+
+struct TWOmxObserver : public IOmxObserver {
+    sp<IOMXObserver> mBase;
+    TWOmxObserver(sp<IOMXObserver> const& base);
+    Return<void> onMessages(const hidl_vec<Message>& tMessages) override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
diff --git a/media/libstagefright/omx/1.0/WProducerListener.cpp b/media/libstagefright/omx/1.0/WProducerListener.cpp
new file mode 100644
index 0000000..be0d4d5
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WProducerListener.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "WProducerListener.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+// TWProducerListener
+TWProducerListener::TWProducerListener(
+        sp<BProducerListener> const& base):
+    mBase(base) {
+}
+
+Return<void> TWProducerListener::onBufferReleased() {
+    mBase->onBufferReleased();
+    return Void();
+}
+
+Return<bool> TWProducerListener::needsReleaseNotify() {
+    return mBase->needsReleaseNotify();
+}
+
+// LWProducerListener
+LWProducerListener::LWProducerListener(
+        sp<HProducerListener> const& base):
+    mBase(base) {
+}
+
+void LWProducerListener::onBufferReleased() {
+    mBase->onBufferReleased();
+}
+
+bool LWProducerListener::needsReleaseNotify() {
+    return static_cast<bool>(mBase->needsReleaseNotify());
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/1.0/WProducerListener.h b/media/libstagefright/omx/1.0/WProducerListener.h
new file mode 100644
index 0000000..a75e48a
--- /dev/null
+++ b/media/libstagefright/omx/1.0/WProducerListener.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXPRODUCERLISTENER_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXPRODUCERLISTENER_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/IBinder.h>
+#include <gui/IProducerListener.h>
+
+#include <android/hardware/graphics/bufferqueue/1.0/IProducerListener.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+typedef ::android::hardware::graphics::bufferqueue::V1_0::IProducerListener
+        HProducerListener;
+typedef ::android::IProducerListener
+        BProducerListener;
+using ::android::BnProducerListener;
+
+struct TWProducerListener : public HProducerListener {
+    sp<BProducerListener> mBase;
+    TWProducerListener(sp<BProducerListener> const& base);
+    Return<void> onBufferReleased() override;
+    Return<bool> needsReleaseNotify() override;
+};
+
+class LWProducerListener : public BnProducerListener {
+public:
+    sp<HProducerListener> mBase;
+    LWProducerListener(sp<HProducerListener> const& base);
+    void onBufferReleased() override;
+    bool needsReleaseNotify() override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXPRODUCERLISTENER_H
diff --git a/media/libstagefright/omx/Android.mk b/media/libstagefright/omx/Android.mk
index e4fbd81..29e2ccc 100644
--- a/media/libstagefright/omx/Android.mk
+++ b/media/libstagefright/omx/Android.mk
@@ -1,43 +1,69 @@
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES:=                     \
-        FrameDropper.cpp              \
-        GraphicBufferSource.cpp       \
-        OMX.cpp                       \
-        OMXMaster.cpp                 \
-        OMXNodeInstance.cpp           \
-        OMXUtils.cpp                  \
-        SimpleSoftOMXComponent.cpp    \
-        SoftOMXComponent.cpp          \
-        SoftOMXPlugin.cpp             \
-        SoftVideoDecoderOMXComponent.cpp \
-        SoftVideoEncoderOMXComponent.cpp \
+LOCAL_SRC_FILES:=                          \
+        FrameDropper.cpp                   \
+        GraphicBufferSource.cpp            \
+        BWGraphicBufferSource.cpp          \
+        OMX.cpp                            \
+        OMXMaster.cpp                      \
+        OMXNodeInstance.cpp                \
+        OMXUtils.cpp                       \
+        SimpleSoftOMXComponent.cpp         \
+        SoftOMXComponent.cpp               \
+        SoftOMXPlugin.cpp                  \
+        SoftVideoDecoderOMXComponent.cpp   \
+        SoftVideoEncoderOMXComponent.cpp   \
+        1.0/Omx.cpp                        \
+        1.0/OmxStore.cpp                   \
+        1.0/WGraphicBufferProducer.cpp     \
+        1.0/WProducerListener.cpp          \
+        1.0/WGraphicBufferSource.cpp       \
+        1.0/WOmxNode.cpp                   \
+        1.0/WOmxObserver.cpp               \
+        1.0/WOmxBufferSource.cpp           \
 
 LOCAL_C_INCLUDES += \
         $(TOP)/frameworks/av/media/libstagefright \
         $(TOP)/frameworks/native/include/media/hardware \
-        $(TOP)/frameworks/native/include/media/openmax
+        $(TOP)/frameworks/native/include/media/openmax \
+        $(TOP)/system/libhidl/base/include \
 
-LOCAL_SHARED_LIBRARIES :=               \
-        libbinder                       \
-        libhardware                     \
-        libmedia                        \
-        libutils                        \
-        liblog                          \
-        libui                           \
-        libgui                          \
-        libcutils                       \
-        libstagefright_foundation       \
-        libdl
+LOCAL_SHARED_LIBRARIES :=                         \
+        libbase                                   \
+        libbinder                                 \
+        libmedia                                  \
+        libutils                                  \
+        liblog                                    \
+        libui                                     \
+        libgui                                    \
+        libcutils                                 \
+        libstagefright_foundation                 \
+        libdl                                     \
+        libhidlbase                               \
+        libhidlmemory                             \
+        libstagefright_xmlparser@1.0              \
+        android.hidl.base@1.0                     \
+        android.hidl.memory@1.0                   \
+        android.hardware.media@1.0                \
+        android.hardware.media.omx@1.0            \
+        android.hardware.graphics.common@1.0      \
+        android.hardware.graphics.bufferqueue@1.0 \
+
+LOCAL_EXPORT_C_INCLUDES := \
+        $(TOP)/frameworks/av/include
+
+LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := \
+        android.hidl.memory@1.0
 
 LOCAL_MODULE:= libstagefright_omx
-LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_CFLAGS += -Werror -Wall -Wno-unused-parameter -Wno-documentation
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
 
 ################################################################################
 
+include $(call all-makefiles-under,$(LOCAL_PATH)/hal)
 include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/media/libstagefright/omx/BWGraphicBufferSource.cpp b/media/libstagefright/omx/BWGraphicBufferSource.cpp
new file mode 100644
index 0000000..f2a454f
--- /dev/null
+++ b/media/libstagefright/omx/BWGraphicBufferSource.cpp
@@ -0,0 +1,177 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "BWGraphicBufferSource"
+
+#include <OMX_Component.h>
+#include <OMX_IndexExt.h>
+
+#include <media/OMXBuffer.h>
+#include <IOMX.h>
+
+#include "OMXUtils.h"
+#include "BWGraphicBufferSource.h"
+
+namespace android {
+
+static const OMX_U32 kPortIndexInput = 0;
+
+struct BWGraphicBufferSource::BWOmxNodeWrapper : public IOmxNodeWrapper {
+    sp<IOMXNode> mOMXNode;
+
+    BWOmxNodeWrapper(const sp<IOMXNode> &omxNode): mOMXNode(omxNode) {
+    }
+
+    virtual status_t emptyBuffer(
+            int32_t bufferId, uint32_t flags,
+            const sp<GraphicBuffer> &buffer,
+            int64_t timestamp, int fenceFd) override {
+        return mOMXNode->emptyBuffer(bufferId, buffer, flags, timestamp, fenceFd);
+    }
+
+    virtual void dispatchDataSpaceChanged(
+            int32_t dataSpace, int32_t aspects, int32_t pixelFormat) override {
+        omx_message msg;
+        msg.type = omx_message::EVENT;
+        msg.fenceFd = -1;
+        msg.u.event_data.event = OMX_EventDataSpaceChanged;
+        msg.u.event_data.data1 = dataSpace;
+        msg.u.event_data.data2 = aspects;
+        msg.u.event_data.data3 = pixelFormat;
+        mOMXNode->dispatchMessage(msg);
+    }
+};
+
+struct BWGraphicBufferSource::BWOMXBufferSource : public BnOMXBufferSource {
+    sp<GraphicBufferSource> mSource;
+
+    BWOMXBufferSource(const sp<GraphicBufferSource> &source): mSource(source) {
+    }
+
+    Status onOmxExecuting() override {
+        return mSource->onOmxExecuting();
+    }
+
+    Status onOmxIdle() override {
+        return mSource->onOmxIdle();
+    }
+
+    Status onOmxLoaded() override {
+        return mSource->onOmxLoaded();
+    }
+
+    Status onInputBufferAdded(int bufferId) override {
+        return mSource->onInputBufferAdded(bufferId);
+    }
+
+    Status onInputBufferEmptied(
+            int bufferId, const OMXFenceParcelable& fenceParcel) override {
+        return mSource->onInputBufferEmptied(bufferId, fenceParcel.get());
+    }
+};
+
+BWGraphicBufferSource::BWGraphicBufferSource(
+        sp<GraphicBufferSource> const& base) :
+    mBase(base),
+    mOMXBufferSource(new BWOMXBufferSource(base)) {
+}
+
+::android::binder::Status BWGraphicBufferSource::configure(
+        const sp<IOMXNode>& omxNode, int32_t dataSpace) {
+    // Do setInputSurface() first, the node will try to enable metadata
+    // mode on input, and does necessary error checking. If this fails,
+    // we can't use this input surface on the node.
+    status_t err = omxNode->setInputSurface(mOMXBufferSource);
+    if (err != NO_ERROR) {
+        ALOGE("Unable to set input surface: %d", err);
+        return Status::fromStatusT(err);
+    }
+
+    // use consumer usage bits queried from encoder, but always add
+    // HW_VIDEO_ENCODER for backward compatibility.
+    uint32_t consumerUsage;
+    if (omxNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits,
+            &consumerUsage, sizeof(consumerUsage)) != OK) {
+        consumerUsage = 0;
+    }
+
+    OMX_PARAM_PORTDEFINITIONTYPE def;
+    InitOMXParams(&def);
+    def.nPortIndex = kPortIndexInput;
+
+    err = omxNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
+    if (err != NO_ERROR) {
+        ALOGE("Failed to get port definition: %d", err);
+        return Status::fromStatusT(UNKNOWN_ERROR);
+    }
+
+    return Status::fromStatusT(mBase->configure(
+              new BWOmxNodeWrapper(omxNode),
+              dataSpace,
+              def.nBufferCountActual,
+              def.format.video.nFrameWidth,
+              def.format.video.nFrameHeight,
+              consumerUsage));
+}
+
+::android::binder::Status BWGraphicBufferSource::setSuspend(
+        bool suspend, int64_t timeUs) {
+    return Status::fromStatusT(mBase->setSuspend(suspend, timeUs));
+}
+
+::android::binder::Status BWGraphicBufferSource::setRepeatPreviousFrameDelayUs(
+        int64_t repeatAfterUs) {
+    return Status::fromStatusT(mBase->setRepeatPreviousFrameDelayUs(repeatAfterUs));
+}
+
+::android::binder::Status BWGraphicBufferSource::setMaxFps(float maxFps) {
+    return Status::fromStatusT(mBase->setMaxFps(maxFps));
+}
+
+::android::binder::Status BWGraphicBufferSource::setTimeLapseConfig(
+        double fps, double captureFps) {
+    return Status::fromStatusT(mBase->setTimeLapseConfig(
+            fps, captureFps));
+}
+
+::android::binder::Status BWGraphicBufferSource::setStartTimeUs(
+        int64_t startTimeUs) {
+    return Status::fromStatusT(mBase->setStartTimeUs(startTimeUs));
+}
+
+::android::binder::Status BWGraphicBufferSource::setStopTimeUs(
+        int64_t stopTimeUs) {
+    return Status::fromStatusT(mBase->setStopTimeUs(stopTimeUs));
+}
+
+::android::binder::Status BWGraphicBufferSource::setColorAspects(
+        int32_t aspects) {
+    return Status::fromStatusT(mBase->setColorAspects(aspects));
+}
+
+::android::binder::Status BWGraphicBufferSource::setTimeOffsetUs(
+        int64_t timeOffsetsUs) {
+    return Status::fromStatusT(mBase->setTimeOffsetUs(timeOffsetsUs));
+}
+
+::android::binder::Status BWGraphicBufferSource::signalEndOfInputStream() {
+    return Status::fromStatusT(mBase->signalEndOfInputStream());
+}
+
+}  // namespace android
diff --git a/media/libstagefright/omx/BWGraphicBufferSource.h b/media/libstagefright/omx/BWGraphicBufferSource.h
new file mode 100644
index 0000000..43763c2
--- /dev/null
+++ b/media/libstagefright/omx/BWGraphicBufferSource.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BWGRAPHIC_BUFFER_SOURCE_H_
+#define BWGRAPHIC_BUFFER_SOURCE_H_
+
+#include <binder/Binder.h>
+#include <binder/Status.h>
+#include <android/BnGraphicBufferSource.h>
+#include <android/BnOMXBufferSource.h>
+#include <IOMX.h>
+
+#include "GraphicBufferSource.h"
+#include "IOmxNodeWrapper.h"
+
+namespace android {
+
+using ::android::binder::Status;
+using ::android::BnGraphicBufferSource;
+using ::android::GraphicBufferSource;
+using ::android::IOMXNode;
+using ::android::sp;
+
+struct BWGraphicBufferSource : public BnGraphicBufferSource {
+    struct BWOMXBufferSource;
+    struct BWOmxNodeWrapper;
+
+    sp<GraphicBufferSource> mBase;
+    sp<IOMXBufferSource> mOMXBufferSource;
+
+    BWGraphicBufferSource(sp<GraphicBufferSource> const &base);
+
+    Status configure(
+            const sp<IOMXNode>& omxNode, int32_t dataSpace) override;
+    Status setSuspend(bool suspend, int64_t timeUs) override;
+    Status setRepeatPreviousFrameDelayUs(
+            int64_t repeatAfterUs) override;
+    Status setMaxFps(float maxFps) override;
+    Status setTimeLapseConfig(
+            double fps, double captureFps) override;
+    Status setStartTimeUs(int64_t startTimeUs) override;
+    Status setStopTimeUs(int64_t stopTimeUs) override;
+    Status setColorAspects(int32_t aspects) override;
+    Status setTimeOffsetUs(int64_t timeOffsetsUs) override;
+    Status signalEndOfInputStream() override;
+};
+
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
diff --git a/media/libstagefright/omx/GraphicBufferSource.cpp b/media/libstagefright/omx/GraphicBufferSource.cpp
index e1bcd28..47d80bb 100644
--- a/media/libstagefright/omx/GraphicBufferSource.cpp
+++ b/media/libstagefright/omx/GraphicBufferSource.cpp
@@ -23,196 +23,306 @@
 #define STRINGIFY_ENUMS // for asString in HardwareAPI.h/VideoAPI.h
 
 #include "GraphicBufferSource.h"
-#include "OMXUtils.h"
-
-#include <OMX_Core.h>
-#include <OMX_IndexExt.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/ColorUtils.h>
+#include <media/stagefright/foundation/FileDescriptor.h>
 
 #include <media/hardware/MetadataBufferType.h>
 #include <ui/GraphicBuffer.h>
 #include <gui/BufferItem.h>
 #include <HardwareAPI.h>
+#include "omx/OMXUtils.h"
+#include <OMX_Component.h>
+#include <OMX_IndexExt.h>
+#include "OMXBuffer.h"
 
 #include <inttypes.h>
 #include "FrameDropper.h"
 
+#include <functional>
+#include <memory>
+#include <cmath>
+
 namespace android {
 
-static const bool EXTRA_CHECK = true;
+/**
+ * A copiable object managing a buffer in the buffer cache managed by the producer. This object
+ * holds a reference to the buffer, and maintains which buffer slot it belongs to (if any), and
+ * whether it is still in a buffer slot. It also maintains whether there are any outstanging acquire
+ * references to it (by buffers acquired from the slot) mainly so that we can keep a debug
+ * count of how many buffers we need to still release back to the producer.
+ */
+struct GraphicBufferSource::CachedBuffer {
+    /**
+     * Token that is used to track acquire counts (as opposed to all references to this object).
+     */
+    struct Acquirable { };
 
-static const OMX_U32 kPortIndexInput = 0;
+    /**
+     * Create using a buffer cached in a slot.
+     */
+    CachedBuffer(slot_id slot, const sp<GraphicBuffer> &graphicBuffer)
+        : mIsCached(true),
+          mSlot(slot),
+          mGraphicBuffer(graphicBuffer),
+          mAcquirable(std::make_shared<Acquirable>()) {
+    }
 
-GraphicBufferSource::PersistentProxyListener::PersistentProxyListener(
-        const wp<IGraphicBufferConsumer> &consumer,
-        const wp<ConsumerListener>& consumerListener) :
-    mConsumerListener(consumerListener),
-    mConsumer(consumer) {}
+    /**
+     * Returns the cache slot that this buffer is cached in, or -1 if it is no longer cached.
+     *
+     * This assumes that -1 slot id is invalid; though, it is just a benign collision used for
+     * debugging. This object explicitly manages whether it is still cached.
+     */
+    slot_id getSlot() const {
+        return mIsCached ? mSlot : -1;
+    }
 
-GraphicBufferSource::PersistentProxyListener::~PersistentProxyListener() {}
+    /**
+     * Returns the cached buffer.
+     */
+    sp<GraphicBuffer> getGraphicBuffer() const {
+        return mGraphicBuffer;
+    }
 
-void GraphicBufferSource::PersistentProxyListener::onFrameAvailable(
-        const BufferItem& item) {
-    sp<ConsumerListener> listener(mConsumerListener.promote());
-    if (listener != NULL) {
-        listener->onFrameAvailable(item);
-    } else {
-        sp<IGraphicBufferConsumer> consumer(mConsumer.promote());
-        if (consumer == NULL) {
-            return;
+    /**
+     * Checks whether this buffer is still in the buffer cache.
+     */
+    bool isCached() const {
+        return mIsCached;
+    }
+
+    /**
+     * Checks whether this buffer has an acquired reference.
+     */
+    bool isAcquired() const {
+        return mAcquirable.use_count() > 1;
+    }
+
+    /**
+     * Gets and returns a shared acquired reference.
+     */
+    std::shared_ptr<Acquirable> getAcquirable() {
+        return mAcquirable;
+    }
+
+private:
+    friend void GraphicBufferSource::discardBufferAtSlotIndex_l(ssize_t);
+
+    /**
+     * This method to be called when the buffer is no longer in the buffer cache.
+     * Called from discardBufferAtSlotIndex_l.
+     */
+    void onDroppedFromCache() {
+        CHECK_DBG(mIsCached);
+        mIsCached = false;
+    }
+
+    bool mIsCached;
+    slot_id mSlot;
+    sp<GraphicBuffer> mGraphicBuffer;
+    std::shared_ptr<Acquirable> mAcquirable;
+};
+
+/**
+ * A copiable object managing a buffer acquired from the producer. This must always be a cached
+ * buffer. This objects also manages its acquire fence and any release fences that may be returned
+ * by the encoder for this buffer (this buffer may be queued to the encoder multiple times).
+ * If no release fences are added by the encoder, the acquire fence is returned as the release
+ * fence for this - as it is assumed that noone waited for the acquire fence. Otherwise, it is
+ * assumed that the encoder has waited for the acquire fence (or returned it as the release
+ * fence).
+ */
+struct GraphicBufferSource::AcquiredBuffer {
+    AcquiredBuffer(
+            const std::shared_ptr<CachedBuffer> &buffer,
+            std::function<void(AcquiredBuffer *)> onReleased,
+            const sp<Fence> &acquireFence)
+        : mBuffer(buffer),
+          mAcquirable(buffer->getAcquirable()),
+          mAcquireFence(acquireFence),
+          mGotReleaseFences(false),
+          mOnReleased(onReleased) {
+    }
+
+    /**
+     * Adds a release fence returned by the encoder to this object. If this is called with an
+     * valid file descriptor, it is added to the list of release fences. These are returned to the
+     * producer on release() as a merged fence. Regardless of the validity of the file descriptor,
+     * we take note that a release fence was attempted to be added and the acquire fence can now be
+     * assumed as acquired.
+     */
+    void addReleaseFenceFd(int fenceFd) {
+        // save all release fences - these will be propagated to the producer if this buffer is
+        // ever released to it
+        if (fenceFd >= 0) {
+            mReleaseFenceFds.push_back(fenceFd);
         }
-        BufferItem bi;
-        status_t err = consumer->acquireBuffer(&bi, 0);
-        if (err != OK) {
-            ALOGE("PersistentProxyListener: acquireBuffer failed (%d)", err);
-            return;
-        }
+        mGotReleaseFences = true;
+    }
 
-        err = consumer->detachBuffer(bi.mSlot);
-        if (err != OK) {
-            ALOGE("PersistentProxyListener: detachBuffer failed (%d)", err);
-            return;
+    /**
+     * Returns the acquire fence file descriptor associated with this object.
+     */
+    int getAcquireFenceFd() {
+        if (mAcquireFence == nullptr || !mAcquireFence->isValid()) {
+            return -1;
         }
+        return mAcquireFence->dup();
+    }
 
-        err = consumer->attachBuffer(&bi.mSlot, bi.mGraphicBuffer);
-        if (err != OK) {
-            ALOGE("PersistentProxyListener: attachBuffer failed (%d)", err);
-            return;
+    /**
+     * Returns whether the buffer is still in the buffer cache.
+     */
+    bool isCached() const {
+        return mBuffer->isCached();
+    }
+
+    /**
+     * Returns the acquired buffer.
+     */
+    sp<GraphicBuffer> getGraphicBuffer() const {
+        return mBuffer->getGraphicBuffer();
+    }
+
+    /**
+     * Returns the slot that this buffer is cached at, or -1 otherwise.
+     *
+     * This assumes that -1 slot id is invalid; though, it is just a benign collision used for
+     * debugging. This object explicitly manages whether it is still cached.
+     */
+    slot_id getSlot() const {
+        return mBuffer->getSlot();
+    }
+
+    /**
+     * Creates and returns a release fence object from the acquire fence and/or any release fences
+     * added. If no release fences were added (even if invalid), returns the acquire fence.
+     * Otherwise, it returns a merged fence from all the valid release fences added.
+     */
+    sp<Fence> getReleaseFence() {
+        // If did not receive release fences, we assume this buffer was not consumed (it was
+        // discarded or dropped). In this case release the acquire fence as the release fence.
+        // We do this here to avoid a dup, close and recreation of the Fence object.
+        if (!mGotReleaseFences) {
+            return mAcquireFence;
         }
+        sp<Fence> ret = getReleaseFence(0, mReleaseFenceFds.size());
+        // clear fds as fence took ownership of them
+        mReleaseFenceFds.clear();
+        return ret;
+    }
 
-        err = consumer->releaseBuffer(bi.mSlot, 0,
-                EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, bi.mFence);
-        if (err != OK) {
-            ALOGE("PersistentProxyListener: releaseBuffer failed (%d)", err);
+    // this video buffer is no longer referenced by the codec (or kept for later encoding)
+    // it is now safe to release to the producer
+    ~AcquiredBuffer() {
+        //mAcquirable.clear();
+        mOnReleased(this);
+        // mOnRelease method should call getReleaseFence() that releases all fds but just in case
+        ALOGW_IF(!mReleaseFenceFds.empty(), "release fences were not obtained, closing fds");
+        for (int fildes : mReleaseFenceFds) {
+            ::close(fildes);
+            TRESPASS_DBG();
         }
     }
-}
 
-void GraphicBufferSource::PersistentProxyListener::onFrameReplaced(
-        const BufferItem& item) {
-    sp<ConsumerListener> listener(mConsumerListener.promote());
-    if (listener != NULL) {
-        listener->onFrameReplaced(item);
+private:
+    std::shared_ptr<GraphicBufferSource::CachedBuffer> mBuffer;
+    std::shared_ptr<GraphicBufferSource::CachedBuffer::Acquirable> mAcquirable;
+    sp<Fence> mAcquireFence;
+    Vector<int> mReleaseFenceFds;
+    bool mGotReleaseFences;
+    std::function<void(AcquiredBuffer *)> mOnReleased;
+
+    /**
+     * Creates and returns a release fence from 0 or more release fence file descriptors in from
+     * the specified range in the array.
+     *
+     * @param start start index
+     * @param num   number of release fds to merge
+     */
+    sp<Fence> getReleaseFence(size_t start, size_t num) const {
+        if (num == 0) {
+            return Fence::NO_FENCE;
+        } else if (num == 1) {
+            return new Fence(mReleaseFenceFds[start]);
+        } else {
+            return Fence::merge("GBS::AB",
+                                getReleaseFence(start, num >> 1),
+                                getReleaseFence(start + (num >> 1), num - (num >> 1)));
+        }
     }
-}
+};
 
-void GraphicBufferSource::PersistentProxyListener::onBuffersReleased() {
-    sp<ConsumerListener> listener(mConsumerListener.promote());
-    if (listener != NULL) {
-        listener->onBuffersReleased();
-    }
-}
-
-void GraphicBufferSource::PersistentProxyListener::onSidebandStreamChanged() {
-    sp<ConsumerListener> listener(mConsumerListener.promote());
-    if (listener != NULL) {
-        listener->onSidebandStreamChanged();
-    }
-}
-
-GraphicBufferSource::GraphicBufferSource(
-        OMXNodeInstance* nodeInstance,
-        uint32_t bufferWidth,
-        uint32_t bufferHeight,
-        uint32_t bufferCount,
-        uint32_t consumerUsage,
-        const sp<IGraphicBufferConsumer> &consumer) :
+GraphicBufferSource::GraphicBufferSource() :
     mInitCheck(UNKNOWN_ERROR),
-    mNodeInstance(nodeInstance),
-    mExecuting(false),
-    mSuspended(false),
-    mLastDataSpace(HAL_DATASPACE_UNKNOWN),
-    mIsPersistent(false),
-    mConsumer(consumer),
-    mNumFramesAvailable(0),
-    mNumBufferAcquired(0),
+    mNumAvailableUnacquiredBuffers(0),
+    mNumOutstandingAcquires(0),
     mEndOfStream(false),
     mEndOfStreamSent(false),
-    mMaxTimestampGapUs(-1ll),
-    mPrevOriginalTimeUs(-1ll),
-    mPrevModifiedTimeUs(-1ll),
+    mLastDataspace(HAL_DATASPACE_UNKNOWN),
+    mExecuting(false),
+    mSuspended(false),
+    mStopTimeUs(-1),
+    mLastActionTimeUs(-1ll),
     mSkipFramesBeforeNs(-1ll),
-    mRepeatAfterUs(-1ll),
+    mFrameRepeatIntervalUs(-1ll),
     mRepeatLastFrameGeneration(0),
-    mRepeatLastFrameTimestamp(-1ll),
-    mLatestBufferId(-1),
-    mLatestBufferFrameNum(0),
-    mLatestBufferFence(Fence::NO_FENCE),
-    mRepeatBufferDeferred(false),
-    mTimePerCaptureUs(-1ll),
-    mTimePerFrameUs(-1ll),
+    mOutstandingFrameRepeatCount(0),
+    mFrameRepeatBlockedOnCodecBuffer(false),
+    mFps(-1.0),
+    mCaptureFps(-1.0),
+    mBaseCaptureUs(-1ll),
+    mBaseFrameUs(-1ll),
+    mFrameCount(0),
     mPrevCaptureUs(-1ll),
     mPrevFrameUs(-1ll),
     mInputBufferTimeOffsetUs(0ll) {
+    ALOGV("GraphicBufferSource");
 
-    ALOGV("GraphicBufferSource w=%u h=%u c=%u",
-            bufferWidth, bufferHeight, bufferCount);
+    String8 name("GraphicBufferSource");
 
-    if (bufferWidth == 0 || bufferHeight == 0) {
-        ALOGE("Invalid dimensions %ux%u", bufferWidth, bufferHeight);
-        mInitCheck = BAD_VALUE;
+    BufferQueue::createBufferQueue(&mProducer, &mConsumer);
+    mConsumer->setConsumerName(name);
+
+    // Note that we can't create an sp<...>(this) in a ctor that will not keep a
+    // reference once the ctor ends, as that would cause the refcount of 'this'
+    // dropping to 0 at the end of the ctor.  Since all we need is a wp<...>
+    // that's what we create.
+    wp<BufferQueue::ConsumerListener> listener =
+            static_cast<BufferQueue::ConsumerListener*>(this);
+    sp<IConsumerListener> proxy =
+            new BufferQueue::ProxyConsumerListener(listener);
+
+    mInitCheck = mConsumer->consumerConnect(proxy, false);
+    if (mInitCheck != NO_ERROR) {
+        ALOGE("Error connecting to BufferQueue: %s (%d)",
+                strerror(-mInitCheck), mInitCheck);
         return;
     }
 
-    if (mConsumer == NULL) {
-        String8 name("GraphicBufferSource");
+    memset(&mDefaultColorAspectsPacked, 0, sizeof(mDefaultColorAspectsPacked));
 
-        BufferQueue::createBufferQueue(&mProducer, &mConsumer);
-        mConsumer->setConsumerName(name);
-
-        // use consumer usage bits queried from encoder, but always add HW_VIDEO_ENCODER
-        // for backward compatibility.
-        consumerUsage |= GRALLOC_USAGE_HW_VIDEO_ENCODER;
-        mConsumer->setConsumerUsageBits(consumerUsage);
-
-        mInitCheck = mConsumer->setMaxAcquiredBufferCount(bufferCount);
-        if (mInitCheck != NO_ERROR) {
-            ALOGE("Unable to set BQ max acquired buffer count to %u: %d",
-                    bufferCount, mInitCheck);
-            return;
-        }
-    } else {
-        mIsPersistent = true;
-    }
-    mConsumer->setDefaultBufferSize(bufferWidth, bufferHeight);
-}
-
-status_t GraphicBufferSource::init() {
-    // Note that we can't create an sp<...>(this) in a method that will not keep a
-    // reference once the method ends, as that may cause the refcount of 'this'
-    // dropping to 0 at the end of the method.  Since all we need is a wp<...>
-    // that's what we create.
-    wp<BufferQueue::ConsumerListener> listener = static_cast<BufferQueue::ConsumerListener*>(this);
-    sp<IConsumerListener> proxy;
-    if (!mIsPersistent) {
-        proxy = new BufferQueue::ProxyConsumerListener(listener);
-    } else {
-        proxy = new PersistentProxyListener(mConsumer, listener);
-    }
-
-    mInitCheck = mConsumer->consumerConnect(proxy, false);
-    if (mInitCheck == NO_ERROR) {
-        memset(&mColorAspects, 0, sizeof(mColorAspects));
-    } else {
-        ALOGE("Error connecting to BufferQueue: %s (%d)",
-                strerror(-mInitCheck), mInitCheck);
-    }
-
-    return mInitCheck;
+    CHECK(mInitCheck == NO_ERROR);
 }
 
 GraphicBufferSource::~GraphicBufferSource() {
-    if (mLatestBufferId >= 0) {
-        releaseBuffer(
-                mLatestBufferId, mLatestBufferFrameNum,
-                mBufferSlot[mLatestBufferId], mLatestBufferFence);
+    ALOGV("~GraphicBufferSource");
+    {
+        // all acquired buffers must be freed with the mutex locked otherwise our debug assertion
+        // may trigger
+        Mutex::Autolock autoLock(mMutex);
+        mAvailableBuffers.clear();
+        mSubmittedCodecBuffers.clear();
+        mLatestBuffer.mBuffer.reset();
     }
-    if (mNumBufferAcquired != 0) {
-        ALOGW("potential buffer leak (acquired %d)", mNumBufferAcquired);
+
+    if (mNumOutstandingAcquires != 0) {
+        ALOGW("potential buffer leak: acquired=%d", mNumOutstandingAcquires);
+        TRESPASS_DBG();
     }
-    if (mConsumer != NULL && !mIsPersistent) {
+    if (mConsumer != NULL) {
         status_t err = mConsumer->consumerDisconnect();
         if (err != NO_ERROR) {
             ALOGW("consumerDisconnect failed: %d", err);
@@ -220,13 +330,13 @@
     }
 }
 
-void GraphicBufferSource::omxExecuting() {
+Status GraphicBufferSource::onOmxExecuting() {
     Mutex::Autolock autoLock(mMutex);
-    ALOGV("--> executing; avail=%zu, codec vec size=%zd",
-            mNumFramesAvailable, mCodecBuffers.size());
+    ALOGV("--> executing; available=%zu, submittable=%zd",
+            mAvailableBuffers.size(), mFreeCodecBuffers.size());
     CHECK(!mExecuting);
     mExecuting = true;
-    mLastDataSpace = HAL_DATASPACE_UNKNOWN;
+    mLastDataspace = HAL_DATASPACE_UNKNOWN;
     ALOGV("clearing last dataSpace");
 
     // Start by loading up as many buffers as possible.  We want to do this,
@@ -238,40 +348,39 @@
     // one codec buffer simultaneously.  (We could instead try to submit
     // all BQ buffers whenever any codec buffer is freed, but if we get the
     // initial conditions right that will never be useful.)
-    while (mNumFramesAvailable) {
+    while (haveAvailableBuffers_l()) {
         if (!fillCodecBuffer_l()) {
-            ALOGV("stop load with frames available (codecAvail=%d)",
-                    isCodecBufferAvailable_l());
+            ALOGV("stop load with available=%zu+%d",
+                    mAvailableBuffers.size(), mNumAvailableUnacquiredBuffers);
             break;
         }
     }
 
-    ALOGV("done loading initial frames, avail=%zu", mNumFramesAvailable);
+    ALOGV("done loading initial frames, available=%zu+%d",
+            mAvailableBuffers.size(), mNumAvailableUnacquiredBuffers);
 
     // If EOS has already been signaled, and there are no more frames to
     // submit, try to send EOS now as well.
-    if (mEndOfStream && mNumFramesAvailable == 0) {
+    if (mStopTimeUs == -1 && mEndOfStream && !haveAvailableBuffers_l()) {
         submitEndOfInputStream_l();
     }
 
-    if (mRepeatAfterUs > 0ll && mLooper == NULL) {
+    if (mFrameRepeatIntervalUs > 0ll && mLooper == NULL) {
         mReflector = new AHandlerReflector<GraphicBufferSource>(this);
 
         mLooper = new ALooper;
         mLooper->registerHandler(mReflector);
         mLooper->start();
 
-        if (mLatestBufferId >= 0) {
-            sp<AMessage> msg =
-                new AMessage(kWhatRepeatLastFrame, mReflector);
-
-            msg->setInt32("generation", ++mRepeatLastFrameGeneration);
-            msg->post(mRepeatAfterUs);
+        if (mLatestBuffer.mBuffer != nullptr) {
+            queueFrameRepeat_l();
         }
     }
+
+    return Status::ok();
 }
 
-void GraphicBufferSource::omxIdle() {
+Status GraphicBufferSource::onOmxIdle() {
     ALOGV("omxIdle");
 
     Mutex::Autolock autoLock(mMutex);
@@ -281,15 +390,11 @@
         // not loaded->idle.
         mExecuting = false;
     }
+    return Status::ok();
 }
 
-void GraphicBufferSource::omxLoaded(){
+Status GraphicBufferSource::onOmxLoaded(){
     Mutex::Autolock autoLock(mMutex);
-    if (!mExecuting) {
-        // This can happen if something failed very early.
-        ALOGW("Dropped back down to Loaded without Executing");
-    }
-
     if (mLooper != NULL) {
         mLooper->unregisterHandler(mReflector->id());
         mReflector.clear();
@@ -298,596 +403,404 @@
         mLooper.clear();
     }
 
-    ALOGV("--> loaded; avail=%zu eos=%d eosSent=%d",
-            mNumFramesAvailable, mEndOfStream, mEndOfStreamSent);
+    ALOGV("--> loaded; available=%zu+%d eos=%d eosSent=%d acquired=%d",
+            mAvailableBuffers.size(), mNumAvailableUnacquiredBuffers,
+            mEndOfStream, mEndOfStreamSent, mNumOutstandingAcquires);
 
-    // Codec is no longer executing.  Discard all codec-related state.
-    mCodecBuffers.clear();
-    // TODO: scan mCodecBuffers to verify that all mGraphicBuffer entries
-    //       are null; complain if not
-
+    // Codec is no longer executing.  Releasing all buffers to bq.
+    mFreeCodecBuffers.clear();
+    mSubmittedCodecBuffers.clear();
+    mLatestBuffer.mBuffer.reset();
+    mOMXNode.clear();
     mExecuting = false;
+
+    return Status::ok();
 }
 
-void GraphicBufferSource::addCodecBuffer(OMX_BUFFERHEADERTYPE* header) {
+Status GraphicBufferSource::onInputBufferAdded(codec_buffer_id bufferId) {
     Mutex::Autolock autoLock(mMutex);
 
     if (mExecuting) {
         // This should never happen -- buffers can only be allocated when
         // transitioning from "loaded" to "idle".
         ALOGE("addCodecBuffer: buffer added while executing");
-        return;
+        return Status::fromServiceSpecificError(INVALID_OPERATION);
     }
 
-    ALOGV("addCodecBuffer h=%p size=%" PRIu32 " p=%p",
-            header, header->nAllocLen, header->pBuffer);
-    CodecBuffer codecBuffer;
-    codecBuffer.mHeader = header;
-    mCodecBuffers.add(codecBuffer);
+    ALOGV("addCodecBuffer: bufferId=%u", bufferId);
+
+    mFreeCodecBuffers.push_back(bufferId);
+    return Status::ok();
 }
 
-void GraphicBufferSource::codecBufferEmptied(OMX_BUFFERHEADERTYPE* header, int fenceFd) {
+Status GraphicBufferSource::onInputBufferEmptied(codec_buffer_id bufferId, int fenceFd) {
     Mutex::Autolock autoLock(mMutex);
-    if (!mExecuting) {
-        return;
-    }
+    FileDescriptor::Autoclose fence(fenceFd);
 
-    int cbi = findMatchingCodecBuffer_l(header);
+    ssize_t cbi = mSubmittedCodecBuffers.indexOfKey(bufferId);
     if (cbi < 0) {
         // This should never happen.
-        ALOGE("codecBufferEmptied: buffer not recognized (h=%p)", header);
-        if (fenceFd >= 0) {
-            ::close(fenceFd);
-        }
-        return;
+        ALOGE("onInputBufferEmptied: buffer not recognized (bufferId=%u)", bufferId);
+        return Status::fromServiceSpecificError(BAD_VALUE);
     }
 
-    ALOGV("codecBufferEmptied h=%p size=%" PRIu32 " filled=%" PRIu32 " p=%p",
-            header, header->nAllocLen, header->nFilledLen,
-            header->pBuffer);
-    CodecBuffer& codecBuffer(mCodecBuffers.editItemAt(cbi));
+    std::shared_ptr<AcquiredBuffer> buffer = mSubmittedCodecBuffers.valueAt(cbi);
+
+    // Move buffer to available buffers
+    mSubmittedCodecBuffers.removeItemsAt(cbi);
+    mFreeCodecBuffers.push_back(bufferId);
 
     // header->nFilledLen may not be the original value, so we can't compare
     // that to zero to see of this was the EOS buffer.  Instead we just
-    // see if the GraphicBuffer reference was null, which should only ever
-    // happen for EOS.
-    if (codecBuffer.mGraphicBuffer == NULL) {
+    // see if there is a null AcquiredBuffer, which should only ever happen for EOS.
+    if (buffer == nullptr) {
         if (!(mEndOfStream && mEndOfStreamSent)) {
-            // This can happen when broken code sends us the same buffer
-            // twice in a row.
-            ALOGE("ERROR: codecBufferEmptied on non-EOS null buffer "
-                    "(buffer emptied twice?)");
+            // This can happen when broken code sends us the same buffer twice in a row.
+            ALOGE("onInputBufferEmptied: non-EOS null buffer (bufferId=%u)", bufferId);
+        } else {
+            ALOGV("onInputBufferEmptied: EOS null buffer (bufferId=%u@%zd)", bufferId, cbi);
         }
-        // No GraphicBuffer to deal with, no additional input or output is
-        // expected, so just return.
-        if (fenceFd >= 0) {
-            ::close(fenceFd);
-        }
-        return;
+        // No GraphicBuffer to deal with, no additional input or output is expected, so just return.
+        return Status::fromServiceSpecificError(BAD_VALUE);
     }
 
-    if (EXTRA_CHECK && header->nAllocLen >= sizeof(MetadataBufferType)) {
-        // Pull the graphic buffer handle back out of the buffer, and confirm
-        // that it matches expectations.
-        OMX_U8* data = header->pBuffer;
-        MetadataBufferType type = *(MetadataBufferType *)data;
-        if (type == kMetadataBufferTypeGrallocSource
-                && header->nAllocLen >= sizeof(VideoGrallocMetadata)) {
-            VideoGrallocMetadata &grallocMeta = *(VideoGrallocMetadata *)data;
-            if (grallocMeta.pHandle != codecBuffer.mGraphicBuffer->handle) {
-                // should never happen
-                ALOGE("codecBufferEmptied: buffer's handle is %p, expected %p",
-                        grallocMeta.pHandle, codecBuffer.mGraphicBuffer->handle);
-                CHECK(!"codecBufferEmptied: mismatched buffer");
-            }
-        } else if (type == kMetadataBufferTypeANWBuffer
-                && header->nAllocLen >= sizeof(VideoNativeMetadata)) {
-            VideoNativeMetadata &nativeMeta = *(VideoNativeMetadata *)data;
-            if (nativeMeta.pBuffer != codecBuffer.mGraphicBuffer->getNativeBuffer()) {
-                // should never happen
-                ALOGE("codecBufferEmptied: buffer is %p, expected %p",
-                        nativeMeta.pBuffer, codecBuffer.mGraphicBuffer->getNativeBuffer());
-                CHECK(!"codecBufferEmptied: mismatched buffer");
-            }
-        }
+    if (!mExecuting) {
+        // this is fine since this could happen when going from Idle to Loaded
+        ALOGV("onInputBufferEmptied: no longer executing (bufferId=%u@%zd)", bufferId, cbi);
+        return Status::fromServiceSpecificError(OK);
     }
 
-    // Find matching entry in our cached copy of the BufferQueue slots.
-    // If we find a match, release that slot.  If we don't, the BufferQueue
-    // has dropped that GraphicBuffer, and there's nothing for us to release.
-    int id = codecBuffer.mSlot;
-    sp<Fence> fence = new Fence(fenceFd);
-    if (mBufferSlot[id] != NULL &&
-            mBufferSlot[id]->handle == codecBuffer.mGraphicBuffer->handle) {
-        mBufferUseCount[id]--;
+    ALOGV("onInputBufferEmptied: bufferId=%d@%zd [slot=%d, useCount=%ld, handle=%p] acquired=%d",
+            bufferId, cbi, buffer->getSlot(), buffer.use_count(), buffer->getGraphicBuffer()->handle,
+            mNumOutstandingAcquires);
 
-        ALOGV("codecBufferEmptied: slot=%d, cbi=%d, useCount=%d, handle=%p",
-                id, cbi, mBufferUseCount[id], mBufferSlot[id]->handle);
+    buffer->addReleaseFenceFd(fence.release());
+    // release codec reference for video buffer just in case remove does not it
+    buffer.reset();
 
-        if (mBufferUseCount[id] < 0) {
-            ALOGW("mBufferUseCount for bq slot %d < 0 (=%d)", id, mBufferUseCount[id]);
-            mBufferUseCount[id] = 0;
-        }
-        if (id != mLatestBufferId && mBufferUseCount[id] == 0) {
-            releaseBuffer(id, codecBuffer.mFrameNumber, mBufferSlot[id], fence);
-        }
-    } else {
-        ALOGV("codecBufferEmptied: no match for emptied buffer in cbi %d",
-                cbi);
-        // we will not reuse codec buffer, so there is no need to wait for fence
-    }
-
-    // Mark the codec buffer as available by clearing the GraphicBuffer ref.
-    codecBuffer.mGraphicBuffer = NULL;
-
-    if (mNumFramesAvailable) {
+    if (haveAvailableBuffers_l()) {
         // Fill this codec buffer.
         CHECK(!mEndOfStreamSent);
-        ALOGV("buffer freed, %zu frames avail (eos=%d)",
-                mNumFramesAvailable, mEndOfStream);
+        ALOGV("onInputBufferEmptied: buffer freed, feeding codec (available=%zu+%d, eos=%d)",
+                mAvailableBuffers.size(), mNumAvailableUnacquiredBuffers, mEndOfStream);
         fillCodecBuffer_l();
-    } else if (mEndOfStream) {
-        // No frames available, but EOS is pending, so use this buffer to
+    } else if (mEndOfStream && mStopTimeUs == -1) {
+        // No frames available, but EOS is pending and no stop time, so use this buffer to
         // send that.
-        ALOGV("buffer freed, EOS pending");
+        ALOGV("onInputBufferEmptied: buffer freed, submitting EOS");
         submitEndOfInputStream_l();
-    } else if (mRepeatBufferDeferred) {
+    } else if (mFrameRepeatBlockedOnCodecBuffer) {
         bool success = repeatLatestBuffer_l();
-        if (success) {
-            ALOGV("deferred repeatLatestBuffer_l SUCCESS");
-        } else {
-            ALOGV("deferred repeatLatestBuffer_l FAILURE");
-        }
-        mRepeatBufferDeferred = false;
+        ALOGV("onInputBufferEmptied: completing deferred repeatLatestBuffer_l %s",
+                success ? "SUCCESS" : "FAILURE");
+        mFrameRepeatBlockedOnCodecBuffer = false;
     }
 
-    return;
+    // releaseReleasableBuffers_l();
+    return Status::ok();
 }
 
-void GraphicBufferSource::codecBufferFilled(OMX_BUFFERHEADERTYPE* header) {
-    Mutex::Autolock autoLock(mMutex);
+void GraphicBufferSource::onDataspaceChanged_l(
+        android_dataspace dataspace, android_pixel_format pixelFormat) {
+    ALOGD("got buffer with new dataSpace #%x", dataspace);
+    mLastDataspace = dataspace;
 
-    if (mMaxTimestampGapUs > 0ll
-            && !(header->nFlags & OMX_BUFFERFLAG_CODECCONFIG)) {
-        ssize_t index = mOriginalTimeUs.indexOfKey(header->nTimeStamp);
-        if (index >= 0) {
-            ALOGV("OUT timestamp: %lld -> %lld",
-                    static_cast<long long>(header->nTimeStamp),
-                    static_cast<long long>(mOriginalTimeUs[index]));
-            header->nTimeStamp = mOriginalTimeUs[index];
-            mOriginalTimeUs.removeItemsAt(index);
-        } else {
-            // giving up the effort as encoder doesn't appear to preserve pts
-            ALOGW("giving up limiting timestamp gap (pts = %lld)",
-                    header->nTimeStamp);
-            mMaxTimestampGapUs = -1ll;
-        }
-        if (mOriginalTimeUs.size() > BufferQueue::NUM_BUFFER_SLOTS) {
-            // something terribly wrong must have happened, giving up...
-            ALOGE("mOriginalTimeUs has too many entries (%zu)",
-                    mOriginalTimeUs.size());
-            mMaxTimestampGapUs = -1ll;
-        }
-    }
-}
-
-void GraphicBufferSource::suspend(bool suspend) {
-    Mutex::Autolock autoLock(mMutex);
-
-    if (suspend) {
-        mSuspended = true;
-
-        while (mNumFramesAvailable > 0) {
-            BufferItem item;
-            status_t err = mConsumer->acquireBuffer(&item, 0);
-
-            if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
-                // shouldn't happen.
-                ALOGW("suspend: frame was not available");
-                break;
-            } else if (err != OK) {
-                ALOGW("suspend: acquireBuffer returned err=%d", err);
-                break;
-            } else if (item.mSlot < 0 ||
-                    item.mSlot >= BufferQueue::NUM_BUFFER_SLOTS) {
-                // Invalid buffer index
-                ALOGW("suspend: corrupted buffer index (%d)",
-                        item.mSlot);
-                break;
-            }
-
-            ++mNumBufferAcquired;
-            --mNumFramesAvailable;
-
-            releaseBuffer(item.mSlot, item.mFrameNumber,
-                    item.mGraphicBuffer, item.mFence);
-        }
-        return;
-    }
-
-    mSuspended = false;
-
-    if (mExecuting && mNumFramesAvailable == 0 && mRepeatBufferDeferred) {
-        if (repeatLatestBuffer_l()) {
-            ALOGV("suspend/deferred repeatLatestBuffer_l SUCCESS");
-
-            mRepeatBufferDeferred = false;
-        } else {
-            ALOGV("suspend/deferred repeatLatestBuffer_l FAILURE");
-        }
-    }
-}
-
-void GraphicBufferSource::onDataSpaceChanged_l(
-        android_dataspace dataSpace, android_pixel_format pixelFormat) {
-    ALOGD("got buffer with new dataSpace #%x", dataSpace);
-    mLastDataSpace = dataSpace;
-
-    if (ColorUtils::convertDataSpaceToV0(dataSpace)) {
-        ColorAspects aspects = mColorAspects; // initially requested aspects
-
-        // request color aspects to encode
-        OMX_INDEXTYPE index;
-        status_t err = mNodeInstance->getExtensionIndex(
-                "OMX.google.android.index.describeColorAspects", &index);
-        if (err == OK) {
-            // V0 dataspace
-            DescribeColorAspectsParams params;
-            InitOMXParams(&params);
-            params.nPortIndex = kPortIndexInput;
-            params.nDataSpace = mLastDataSpace;
-            params.nPixelFormat = pixelFormat;
-            params.bDataSpaceChanged = OMX_TRUE;
-            params.sAspects = mColorAspects;
-
-            err = mNodeInstance->getConfig(index, &params, sizeof(params));
-            if (err == OK) {
-                aspects = params.sAspects;
-                ALOGD("Codec resolved it to (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
-                        params.sAspects.mRange, asString(params.sAspects.mRange),
-                        params.sAspects.mPrimaries, asString(params.sAspects.mPrimaries),
-                        params.sAspects.mMatrixCoeffs, asString(params.sAspects.mMatrixCoeffs),
-                        params.sAspects.mTransfer, asString(params.sAspects.mTransfer),
-                        err, asString(err));
-            } else {
-                params.sAspects = aspects;
-                err = OK;
-            }
-            params.bDataSpaceChanged = OMX_FALSE;
-            for (int triesLeft = 2; --triesLeft >= 0; ) {
-                status_t err = mNodeInstance->setConfig(index, &params, sizeof(params));
-                if (err == OK) {
-                    err = mNodeInstance->getConfig(index, &params, sizeof(params));
-                }
-                if (err != OK || !ColorUtils::checkIfAspectsChangedAndUnspecifyThem(
-                        params.sAspects, aspects)) {
-                    // if we can't set or get color aspects, still communicate dataspace to client
-                    break;
-                }
-
-                ALOGW_IF(triesLeft == 0, "Codec repeatedly changed requested ColorAspects.");
-            }
-        }
-
-        ALOGV("Set color aspects to (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
-                aspects.mRange, asString(aspects.mRange),
-                aspects.mPrimaries, asString(aspects.mPrimaries),
-                aspects.mMatrixCoeffs, asString(aspects.mMatrixCoeffs),
-                aspects.mTransfer, asString(aspects.mTransfer),
-                err, asString(err));
-
-        // signal client that the dataspace has changed; this will update the output format
-        // TODO: we should tie this to an output buffer somehow, and signal the change
-        // just before the output buffer is returned to the client, but there are many
-        // ways this could fail (e.g. flushing), and we are not yet supporting this scenario.
-
-        mNodeInstance->signalEvent(
-                OMX_EventDataSpaceChanged, dataSpace,
-                (aspects.mRange << 24) | (aspects.mPrimaries << 16)
-                        | (aspects.mMatrixCoeffs << 8) | aspects.mTransfer);
+    if (ColorUtils::convertDataSpaceToV0(dataspace)) {
+        mOMXNode->dispatchDataSpaceChanged(mLastDataspace, mDefaultColorAspectsPacked, pixelFormat);
     }
 }
 
 bool GraphicBufferSource::fillCodecBuffer_l() {
-    CHECK(mExecuting && mNumFramesAvailable > 0);
+    CHECK(mExecuting && haveAvailableBuffers_l());
+
+    if (mFreeCodecBuffers.empty()) {
+        // No buffers available, bail.
+        ALOGV("fillCodecBuffer_l: no codec buffers, available=%zu+%d",
+                mAvailableBuffers.size(), mNumAvailableUnacquiredBuffers);
+        return false;
+    }
+
+    VideoBuffer item;
+    if (mAvailableBuffers.empty()) {
+        ALOGV("fillCodecBuffer_l: acquiring available buffer, available=%zu+%d",
+                mAvailableBuffers.size(), mNumAvailableUnacquiredBuffers);
+        if (acquireBuffer_l(&item) != OK) {
+            ALOGE("fillCodecBuffer_l: failed to acquire available buffer");
+            return false;
+        }
+    } else {
+        ALOGV("fillCodecBuffer_l: getting available buffer, available=%zu+%d",
+                mAvailableBuffers.size(), mNumAvailableUnacquiredBuffers);
+        item = *mAvailableBuffers.begin();
+        mAvailableBuffers.erase(mAvailableBuffers.begin());
+    }
+
+    int64_t itemTimeUs = item.mTimestampNs / 1000;
+
+    // Process ActionItem in the Queue if there is any. If a buffer's timestamp
+    // is smaller than the first action's timestamp, no action need to be performed.
+    // If buffer's timestamp is larger or equal than the last action's timestamp,
+    // only the last action needs to be performed as all the acitions before the
+    // the action are overridden by the last action. For the other cases, traverse
+    // the Queue to find the newest action that with timestamp smaller or equal to
+    // the buffer's timestamp. For example, an action queue like
+    // [pause 1us], [resume 2us], [pause 3us], [resume 4us], [pause 5us].... Upon
+    // receiving a buffer with timestamp 3.5us, only the action [pause, 3us] needs
+    // to be handled and [pause, 1us], [resume 2us] will be discarded.
+    bool done = false;
+    bool seeStopAction = false;
+    if (!mActionQueue.empty()) {
+        // First scan to check if bufferTimestamp is smaller than first action's timestamp.
+        ActionItem nextAction = *(mActionQueue.begin());
+        if (itemTimeUs < nextAction.mActionTimeUs) {
+            ALOGV("No action. buffer timestamp %lld us < action timestamp: %lld us",
+                (long long)itemTimeUs, (long long)nextAction.mActionTimeUs);
+            // All the actions are ahead. No action need to perform now.
+            // Release the buffer if is in suspended state, or process the buffer
+            // if not in suspended state.
+            done = true;
+        }
+
+        if (!done) {
+            // Find the newest action that with timestamp smaller than itemTimeUs. Then
+            // remove all the actions before and include the newest action.
+            List<ActionItem>::iterator it = mActionQueue.begin();
+            while (it != mActionQueue.end() && it->mActionTimeUs <= itemTimeUs
+                    && nextAction.mAction != ActionItem::STOP) {
+                nextAction = *it;
+                ++it;
+            }
+            mActionQueue.erase(mActionQueue.begin(), it);
+
+            CHECK(itemTimeUs >= nextAction.mActionTimeUs);
+            switch (nextAction.mAction) {
+                case ActionItem::PAUSE:
+                {
+                    mSuspended = true;
+                    ALOGV("RUNNING/PAUSE -> PAUSE at buffer %lld us  PAUSE Time: %lld us",
+                            (long long)itemTimeUs, (long long)nextAction.mActionTimeUs);
+                    break;
+                }
+                case ActionItem::RESUME:
+                {
+                    mSuspended = false;
+                    ALOGV("PAUSE/RUNNING -> RUNNING at buffer %lld us  RESUME Time: %lld us",
+                            (long long)itemTimeUs, (long long)nextAction.mActionTimeUs);
+                    break;
+                }
+                case ActionItem::STOP:
+                {
+                    ALOGV("RUNNING/PAUSE -> STOP at buffer %lld us  STOP Time: %lld us",
+                            (long long)itemTimeUs, (long long)nextAction.mActionTimeUs);
+                    // Clear the whole ActionQueue as recording is done
+                    mActionQueue.clear();
+                    seeStopAction = true;
+                    break;
+                }
+                default:
+                    TRESPASS_DBG("Unknown action type");
+                    // return true here because we did consume an available buffer, so the
+                    // loop in onOmxExecuting will eventually terminate even if we hit this.
+                    return false;
+            }
+        }
+    }
+
+    if (seeStopAction) {
+        // Clear all the buffers before setting mEndOfStream and signal EndOfInputStream.
+        releaseAllAvailableBuffers_l();
+        mEndOfStream = true;
+        submitEndOfInputStream_l();
+        return true;
+    }
 
     if (mSuspended) {
-        return false;
+        return true;
     }
 
-    int cbi = findAvailableCodecBuffer_l();
-    if (cbi < 0) {
-        // No buffers available, bail.
-        ALOGV("fillCodecBuffer_l: no codec buffers, avail now %zu",
-                mNumFramesAvailable);
-        return false;
-    }
-
-    ALOGV("fillCodecBuffer_l: acquiring buffer, avail=%zu",
-            mNumFramesAvailable);
-    BufferItem item;
-    status_t err = mConsumer->acquireBuffer(&item, 0);
-    if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
-        // shouldn't happen
-        ALOGW("fillCodecBuffer_l: frame was not available");
-        return false;
-    } else if (err != OK) {
-        // now what? fake end-of-stream?
-        ALOGW("fillCodecBuffer_l: acquireBuffer returned err=%d", err);
-        return false;
-    } else if (item.mSlot < 0 || item.mSlot >= BufferQueue::NUM_BUFFER_SLOTS) {
-        // Invalid buffer index
-        ALOGW("fillCodecBuffer_l: corrupted buffer index (%d)", item.mSlot);
-        return false;
-    }
-
-    mNumBufferAcquired++;
-    mNumFramesAvailable--;
-
-    // If this is the first time we're seeing this buffer, add it to our
-    // slot table.
-    if (item.mGraphicBuffer != NULL) {
-        ALOGV("fillCodecBuffer_l: setting mBufferSlot %d", item.mSlot);
-        mBufferSlot[item.mSlot] = item.mGraphicBuffer;
-        mBufferUseCount[item.mSlot] = 0;
-    }
-
-    if (item.mDataSpace != mLastDataSpace) {
-        onDataSpaceChanged_l(
-                item.mDataSpace, (android_pixel_format)mBufferSlot[item.mSlot]->getPixelFormat());
-    }
-
-
-    err = UNKNOWN_ERROR;
+    int err = UNKNOWN_ERROR;
 
     // only submit sample if start time is unspecified, or sample
     // is queued after the specified start time
-    bool dropped = false;
-    if (mSkipFramesBeforeNs < 0ll || item.mTimestamp >= mSkipFramesBeforeNs) {
+    if (mSkipFramesBeforeNs < 0ll || item.mTimestampNs >= mSkipFramesBeforeNs) {
         // if start time is set, offset time stamp by start time
         if (mSkipFramesBeforeNs > 0) {
-            item.mTimestamp -= mSkipFramesBeforeNs;
+            item.mTimestampNs -= mSkipFramesBeforeNs;
         }
 
-        int64_t timeUs = item.mTimestamp / 1000;
+        int64_t timeUs = item.mTimestampNs / 1000;
         if (mFrameDropper != NULL && mFrameDropper->shouldDrop(timeUs)) {
             ALOGV("skipping frame (%lld) to meet max framerate", static_cast<long long>(timeUs));
             // set err to OK so that the skipped frame can still be saved as the lastest frame
             err = OK;
-            dropped = true;
         } else {
-            err = submitBuffer_l(item, cbi);
+            err = submitBuffer_l(item); // this takes shared ownership of the acquired buffer on succeess
         }
     }
 
     if (err != OK) {
-        ALOGV("submitBuffer_l failed, releasing bq slot %d", item.mSlot);
-        releaseBuffer(item.mSlot, item.mFrameNumber, item.mGraphicBuffer, item.mFence);
+        ALOGV("submitBuffer_l failed, will release bq slot %d", item.mBuffer->getSlot());
+        return true;
     } else {
-        ALOGV("buffer submitted (bq %d, cbi %d)", item.mSlot, cbi);
-        setLatestBuffer_l(item, dropped);
+        // Don't set the last buffer id if we're not repeating,
+        // we'll be holding on to the last buffer for nothing.
+        if (mFrameRepeatIntervalUs > 0ll) {
+            setLatestBuffer_l(item);
+        }
+        ALOGV("buffer submitted [slot=%d, useCount=%ld] acquired=%d",
+                item.mBuffer->getSlot(), item.mBuffer.use_count(), mNumOutstandingAcquires);
     }
 
     return true;
 }
 
 bool GraphicBufferSource::repeatLatestBuffer_l() {
-    CHECK(mExecuting && mNumFramesAvailable == 0);
+    CHECK(mExecuting && !haveAvailableBuffers_l());
 
-    if (mLatestBufferId < 0 || mSuspended) {
-        return false;
-    }
-    if (mBufferSlot[mLatestBufferId] == NULL) {
-        // This can happen if the remote side disconnects, causing
-        // onBuffersReleased() to NULL out our copy of the slots.  The
-        // buffer is gone, so we have nothing to show.
-        //
-        // To be on the safe side we try to release the buffer.
-        ALOGD("repeatLatestBuffer_l: slot was NULL");
-        mConsumer->releaseBuffer(
-                mLatestBufferId,
-                mLatestBufferFrameNum,
-                EGL_NO_DISPLAY,
-                EGL_NO_SYNC_KHR,
-                mLatestBufferFence);
-        mLatestBufferId = -1;
-        mLatestBufferFrameNum = 0;
-        mLatestBufferFence = Fence::NO_FENCE;
+    if (mLatestBuffer.mBuffer == nullptr || mSuspended) {
         return false;
     }
 
-    int cbi = findAvailableCodecBuffer_l();
-    if (cbi < 0) {
+    if (mFreeCodecBuffers.empty()) {
         // No buffers available, bail.
         ALOGV("repeatLatestBuffer_l: no codec buffers.");
         return false;
     }
 
-    BufferItem item;
-    item.mSlot = mLatestBufferId;
-    item.mFrameNumber = mLatestBufferFrameNum;
-    item.mTimestamp = mRepeatLastFrameTimestamp;
-    item.mFence = mLatestBufferFence;
+    if (!mLatestBuffer.mBuffer->isCached()) {
+        ALOGV("repeatLatestBuffer_l: slot was discarded, but repeating our own reference");
+    }
 
-    status_t err = submitBuffer_l(item, cbi);
-
+    // it is ok to update the timestamp of latest buffer as it is only used for submission
+    status_t err = submitBuffer_l(mLatestBuffer);
     if (err != OK) {
         return false;
     }
 
-    ++mBufferUseCount[item.mSlot];
-
     /* repeat last frame up to kRepeatLastFrameCount times.
      * in case of static scene, a single repeat might not get rid of encoder
      * ghosting completely, refresh a couple more times to get better quality
      */
-    if (--mRepeatLastFrameCount > 0) {
-        mRepeatLastFrameTimestamp = item.mTimestamp + mRepeatAfterUs * 1000;
-
-        if (mReflector != NULL) {
-            sp<AMessage> msg = new AMessage(kWhatRepeatLastFrame, mReflector);
-            msg->setInt32("generation", ++mRepeatLastFrameGeneration);
-            msg->post(mRepeatAfterUs);
-        }
+    if (--mOutstandingFrameRepeatCount > 0) {
+        // set up timestamp for repeat frame
+        mLatestBuffer.mTimestampNs += mFrameRepeatIntervalUs * 1000;
+        queueFrameRepeat_l();
     }
 
     return true;
 }
 
-void GraphicBufferSource::setLatestBuffer_l(
-        const BufferItem &item, bool dropped) {
-    if (mLatestBufferId >= 0) {
-        if (mBufferUseCount[mLatestBufferId] == 0) {
-            releaseBuffer(mLatestBufferId, mLatestBufferFrameNum,
-                    mBufferSlot[mLatestBufferId], mLatestBufferFence);
-            // mLatestBufferFence will be set to new fence just below
-        }
-    }
+void GraphicBufferSource::setLatestBuffer_l(const VideoBuffer &item) {
+    mLatestBuffer = item;
 
-    mLatestBufferId = item.mSlot;
-    mLatestBufferFrameNum = item.mFrameNumber;
-    mRepeatLastFrameTimestamp = item.mTimestamp + mRepeatAfterUs * 1000;
+    ALOGV("setLatestBuffer_l: [slot=%d, useCount=%ld]",
+            mLatestBuffer.mBuffer->getSlot(), mLatestBuffer.mBuffer.use_count());
 
-    if (!dropped) {
-        ++mBufferUseCount[item.mSlot];
-    }
+    mOutstandingFrameRepeatCount = kRepeatLastFrameCount;
+    // set up timestamp for repeat frame
+    mLatestBuffer.mTimestampNs += mFrameRepeatIntervalUs * 1000;
+    queueFrameRepeat_l();
+}
 
-    ALOGV("setLatestBuffer_l: slot=%d, useCount=%d",
-            item.mSlot, mBufferUseCount[item.mSlot]);
-
-    mRepeatBufferDeferred = false;
-    mRepeatLastFrameCount = kRepeatLastFrameCount;
-    mLatestBufferFence = item.mFence;
+void GraphicBufferSource::queueFrameRepeat_l() {
+    mFrameRepeatBlockedOnCodecBuffer = false;
 
     if (mReflector != NULL) {
         sp<AMessage> msg = new AMessage(kWhatRepeatLastFrame, mReflector);
         msg->setInt32("generation", ++mRepeatLastFrameGeneration);
-        msg->post(mRepeatAfterUs);
+        msg->post(mFrameRepeatIntervalUs);
     }
 }
 
-status_t GraphicBufferSource::signalEndOfInputStream() {
-    Mutex::Autolock autoLock(mMutex);
-    ALOGV("signalEndOfInputStream: exec=%d avail=%zu eos=%d",
-            mExecuting, mNumFramesAvailable, mEndOfStream);
-
-    if (mEndOfStream) {
-        ALOGE("EOS was already signaled");
-        return INVALID_OPERATION;
-    }
-
-    // Set the end-of-stream flag.  If no frames are pending from the
-    // BufferQueue, and a codec buffer is available, and we're executing,
-    // we initiate the EOS from here.  Otherwise, we'll let
-    // codecBufferEmptied() (or omxExecuting) do it.
-    //
-    // Note: if there are no pending frames and all codec buffers are
-    // available, we *must* submit the EOS from here or we'll just
-    // stall since no future events are expected.
-    mEndOfStream = true;
-
-    if (mExecuting && mNumFramesAvailable == 0) {
-        submitEndOfInputStream_l();
-    }
-
-    return OK;
-}
-
-int64_t GraphicBufferSource::getTimestamp(const BufferItem &item) {
-    int64_t timeUs = item.mTimestamp / 1000;
+bool GraphicBufferSource::calculateCodecTimestamp_l(
+        nsecs_t bufferTimeNs, int64_t *codecTimeUs) {
+    int64_t timeUs = bufferTimeNs / 1000;
     timeUs += mInputBufferTimeOffsetUs;
 
-    if (mTimePerCaptureUs > 0ll
-            && (mTimePerCaptureUs > 2 * mTimePerFrameUs
-            || mTimePerFrameUs > 2 * mTimePerCaptureUs)) {
+    if (mCaptureFps > 0.
+            && (mFps > 2 * mCaptureFps
+            || mCaptureFps > 2 * mFps)) {
         // Time lapse or slow motion mode
         if (mPrevCaptureUs < 0ll) {
             // first capture
-            mPrevCaptureUs = timeUs;
+            mPrevCaptureUs = mBaseCaptureUs = timeUs;
             // adjust the first sample timestamp.
-            mPrevFrameUs = (timeUs * mTimePerFrameUs) / mTimePerCaptureUs;
+            mPrevFrameUs = mBaseFrameUs =
+                    std::llround((timeUs * mCaptureFps) / mFps);
+            mFrameCount = 0;
         } else {
             // snap to nearest capture point
-            int64_t nFrames = (timeUs + mTimePerCaptureUs / 2 - mPrevCaptureUs)
-                    / mTimePerCaptureUs;
+            int64_t nFrames = std::llround(
+                    (timeUs - mPrevCaptureUs) * mCaptureFps);
             if (nFrames <= 0) {
                 // skip this frame as it's too close to previous capture
                 ALOGV("skipping frame, timeUs %lld", static_cast<long long>(timeUs));
-                return -1;
+                return false;
             }
-            mPrevCaptureUs = mPrevCaptureUs + nFrames * mTimePerCaptureUs;
-            mPrevFrameUs += mTimePerFrameUs * nFrames;
+            mFrameCount += nFrames;
+            mPrevCaptureUs = mBaseCaptureUs + std::llround(
+                    mFrameCount / mCaptureFps);
+            mPrevFrameUs = mBaseFrameUs + std::llround(
+                    mFrameCount / mFps);
         }
 
         ALOGV("timeUs %lld, captureUs %lld, frameUs %lld",
                 static_cast<long long>(timeUs),
                 static_cast<long long>(mPrevCaptureUs),
                 static_cast<long long>(mPrevFrameUs));
-
-        return mPrevFrameUs;
     } else {
-        int64_t originalTimeUs = timeUs;
-        if (originalTimeUs <= mPrevOriginalTimeUs) {
-                // Drop the frame if it's going backward in time. Bad timestamp
-                // could disrupt encoder's rate control completely.
+        if (timeUs <= mPrevFrameUs) {
+            // Drop the frame if it's going backward in time. Bad timestamp
+            // could disrupt encoder's rate control completely.
             ALOGW("Dropping frame that's going backward in time");
-            return -1;
+            return false;
         }
 
-        if (mMaxTimestampGapUs > 0ll) {
-            //TODO: Fix the case when mMaxTimestampGapUs and mTimePerCaptureUs are both set.
-
-            /* Cap timestamp gap between adjacent frames to specified max
-             *
-             * In the scenario of cast mirroring, encoding could be suspended for
-             * prolonged periods. Limiting the pts gap to workaround the problem
-             * where encoder's rate control logic produces huge frames after a
-             * long period of suspension.
-             */
-            if (mPrevOriginalTimeUs >= 0ll) {
-                int64_t timestampGapUs = originalTimeUs - mPrevOriginalTimeUs;
-                timeUs = (timestampGapUs < mMaxTimestampGapUs ?
-                    timestampGapUs : mMaxTimestampGapUs) + mPrevModifiedTimeUs;
-            }
-            mOriginalTimeUs.add(timeUs, originalTimeUs);
-            ALOGV("IN  timestamp: %lld -> %lld",
-                static_cast<long long>(originalTimeUs),
-                static_cast<long long>(timeUs));
-        }
-
-        mPrevOriginalTimeUs = originalTimeUs;
-        mPrevModifiedTimeUs = timeUs;
+        mPrevFrameUs = timeUs;
     }
 
-    return timeUs;
+    *codecTimeUs = mPrevFrameUs;
+    return true;
 }
 
-status_t GraphicBufferSource::submitBuffer_l(const BufferItem &item, int cbi) {
-    ALOGV("submitBuffer_l: slot=%d, cbi=%d", item.mSlot, cbi);
+status_t GraphicBufferSource::submitBuffer_l(const VideoBuffer &item) {
+    CHECK(!mFreeCodecBuffers.empty());
+    IOMX::buffer_id codecBufferId = *mFreeCodecBuffers.begin();
 
-    int64_t timeUs = getTimestamp(item);
-    if (timeUs < 0ll) {
+    ALOGV("submitBuffer_l [slot=%d, bufferId=%d]", item.mBuffer->getSlot(), codecBufferId);
+
+    int64_t codecTimeUs;
+    if (!calculateCodecTimestamp_l(item.mTimestampNs, &codecTimeUs)) {
         return UNKNOWN_ERROR;
     }
 
-    CodecBuffer& codecBuffer(mCodecBuffers.editItemAt(cbi));
-    codecBuffer.mGraphicBuffer = mBufferSlot[item.mSlot];
-    codecBuffer.mSlot = item.mSlot;
-    codecBuffer.mFrameNumber = item.mFrameNumber;
+    if ((android_dataspace)item.mDataspace != mLastDataspace) {
+        onDataspaceChanged_l(
+                item.mDataspace,
+                (android_pixel_format)item.mBuffer->getGraphicBuffer()->format);
+    }
 
-    OMX_BUFFERHEADERTYPE* header = codecBuffer.mHeader;
-    sp<GraphicBuffer> buffer = codecBuffer.mGraphicBuffer;
-    status_t err = mNodeInstance->emptyGraphicBuffer(
-            header, buffer, OMX_BUFFERFLAG_ENDOFFRAME, timeUs,
-            item.mFence->isValid() ? item.mFence->dup() : -1);
+    std::shared_ptr<AcquiredBuffer> buffer = item.mBuffer;
+    // use a GraphicBuffer for now as OMXNodeInstance is using GraphicBuffers to hold references
+    // and it requires this graphic buffer to be able to hold its reference
+    // and thus we would need to create a new GraphicBuffer from an ANWBuffer separate from the
+    // acquired GraphicBuffer.
+    // TODO: this can be reworked globally to use ANWBuffer references
+    sp<GraphicBuffer> graphicBuffer = buffer->getGraphicBuffer();
+    status_t err = mOMXNode->emptyBuffer(
+            codecBufferId, OMX_BUFFERFLAG_ENDOFFRAME, graphicBuffer, codecTimeUs,
+            buffer->getAcquireFenceFd());
+
     if (err != OK) {
-        ALOGW("WARNING: emptyNativeWindowBuffer failed: 0x%x", err);
-        codecBuffer.mGraphicBuffer = NULL;
+        ALOGW("WARNING: emptyGraphicBuffer failed: 0x%x", err);
         return err;
     }
 
-    ALOGV("emptyNativeWindowBuffer succeeded, h=%p p=%p buf=%p bufhandle=%p",
-            header, header->pBuffer, buffer->getNativeBuffer(), buffer->handle);
+    mFreeCodecBuffers.erase(mFreeCodecBuffers.begin());
+
+    ssize_t cbix = mSubmittedCodecBuffers.add(codecBufferId, buffer);
+    ALOGV("emptyGraphicBuffer succeeded, bufferId=%u@%zd bufhandle=%p",
+            codecBufferId, cbix, graphicBuffer->handle);
     return OK;
 }
 
@@ -898,130 +811,141 @@
         return;
     }
 
-    int cbi = findAvailableCodecBuffer_l();
-    if (cbi < 0) {
+    if (mFreeCodecBuffers.empty()) {
         ALOGV("submitEndOfInputStream_l: no codec buffers available");
         return;
     }
+    IOMX::buffer_id codecBufferId = *mFreeCodecBuffers.begin();
 
-    // We reject any additional incoming graphic buffers, so there's no need
-    // to stick a placeholder into codecBuffer.mGraphicBuffer to mark it as
-    // in-use.
-    CodecBuffer& codecBuffer(mCodecBuffers.editItemAt(cbi));
-
-    OMX_BUFFERHEADERTYPE* header = codecBuffer.mHeader;
-    status_t err = mNodeInstance->emptyGraphicBuffer(
-            header, NULL /* buffer */, OMX_BUFFERFLAG_ENDOFFRAME | OMX_BUFFERFLAG_EOS,
-            0 /* timestamp */, -1 /* fenceFd */);
+    // We reject any additional incoming graphic buffers. There is no acquired buffer used for EOS
+    status_t err = mOMXNode->emptyBuffer(
+            codecBufferId, OMX_BUFFERFLAG_ENDOFFRAME | OMX_BUFFERFLAG_EOS);
     if (err != OK) {
         ALOGW("emptyDirectBuffer EOS failed: 0x%x", err);
     } else {
-        ALOGV("submitEndOfInputStream_l: buffer submitted, header=%p cbi=%d",
-                header, cbi);
+        mFreeCodecBuffers.erase(mFreeCodecBuffers.begin());
+        ssize_t cbix = mSubmittedCodecBuffers.add(codecBufferId, nullptr);
+        ALOGV("submitEndOfInputStream_l: buffer submitted, bufferId=%u@%zd", codecBufferId, cbix);
         mEndOfStreamSent = true;
+
+        // no need to hold onto any buffers for frame repeating
+        ++mRepeatLastFrameGeneration;
+        mLatestBuffer.mBuffer.reset();
     }
 }
 
-int GraphicBufferSource::findAvailableCodecBuffer_l() {
-    CHECK(mCodecBuffers.size() > 0);
-
-    for (int i = (int)mCodecBuffers.size() - 1; i>= 0; --i) {
-        if (mCodecBuffers[i].mGraphicBuffer == NULL) {
-            return i;
-        }
+status_t GraphicBufferSource::acquireBuffer_l(VideoBuffer *ab) {
+    BufferItem bi;
+    status_t err = mConsumer->acquireBuffer(&bi, 0);
+    if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
+        // shouldn't happen
+        ALOGW("acquireBuffer_l: frame was not available");
+        return err;
+    } else if (err != OK) {
+        ALOGW("acquireBuffer_l: failed with err=%d", err);
+        return err;
     }
-    return -1;
-}
+    --mNumAvailableUnacquiredBuffers;
 
-int GraphicBufferSource::findMatchingCodecBuffer_l(
-        const OMX_BUFFERHEADERTYPE* header) {
-    for (int i = (int)mCodecBuffers.size() - 1; i>= 0; --i) {
-        if (mCodecBuffers[i].mHeader == header) {
-            return i;
+    // Manage our buffer cache.
+    std::shared_ptr<CachedBuffer> buffer;
+    ssize_t bsi = mBufferSlots.indexOfKey(bi.mSlot);
+    if (bi.mGraphicBuffer != NULL) {
+        // replace/initialize slot with new buffer
+        ALOGV("acquireBuffer_l: %s buffer slot %d", bsi < 0 ? "setting" : "UPDATING", bi.mSlot);
+        if (bsi >= 0) {
+            discardBufferAtSlotIndex_l(bsi);
+        } else {
+            bsi = mBufferSlots.add(bi.mSlot, nullptr);
         }
-    }
-    return -1;
-}
-
-/*
- * Releases an acquired buffer back to the consumer for either persistent
- * or non-persistent surfaces.
- *
- * id: buffer slot to release (in persistent case the id might be changed)
- * frameNum: frame number of the frame being released
- * buffer: GraphicBuffer pointer to release (note this must not be & as we
- *         will clear the original mBufferSlot in persistent case)
- * fence: fence of the frame being released
- */
-void GraphicBufferSource::releaseBuffer(
-        int &id, uint64_t frameNum,
-        const sp<GraphicBuffer> buffer, const sp<Fence> &fence) {
-    ALOGV("releaseBuffer: slot=%d", id);
-    if (mIsPersistent) {
-        mConsumer->detachBuffer(id);
-        mBufferSlot[id] = NULL;
-
-        if (mConsumer->attachBuffer(&id, buffer) == OK) {
-            mConsumer->releaseBuffer(
-                    id, 0, EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, fence);
-        }
+        buffer = std::make_shared<CachedBuffer>(bi.mSlot, bi.mGraphicBuffer);
+        mBufferSlots.replaceValueAt(bsi, buffer);
     } else {
-        mConsumer->releaseBuffer(
-                id, frameNum, EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, fence);
+        buffer = mBufferSlots.valueAt(bsi);
     }
-    id = -1; // invalidate id
-    mNumBufferAcquired--;
+    int64_t frameNum = bi.mFrameNumber;
+
+    std::shared_ptr<AcquiredBuffer> acquiredBuffer =
+        std::make_shared<AcquiredBuffer>(
+                buffer,
+                [frameNum, this](AcquiredBuffer *buffer){
+                    // AcquiredBuffer's destructor should always be called when mMutex is locked.
+                    // If we had a reentrant mutex, we could just lock it again to ensure this.
+                    if (mMutex.tryLock() == 0) {
+                        TRESPASS_DBG();
+                        mMutex.unlock();
+                    }
+
+                    // we can release buffers immediately if not using adapters
+                    // alternately, we could add them to mSlotsToRelease, but we would
+                    // somehow need to propagate frame number to that queue
+                    if (buffer->isCached()) {
+                        --mNumOutstandingAcquires;
+                        mConsumer->releaseBuffer(
+                                buffer->getSlot(), frameNum, EGL_NO_DISPLAY, EGL_NO_SYNC_KHR,
+                                buffer->getReleaseFence());
+                    }
+                },
+                bi.mFence);
+    VideoBuffer videoBuffer{acquiredBuffer, bi.mTimestamp, bi.mDataSpace};
+    *ab = videoBuffer;
+    ++mNumOutstandingAcquires;
+    return OK;
 }
 
 // BufferQueue::ConsumerListener callback
-void GraphicBufferSource::onFrameAvailable(const BufferItem& /*item*/) {
+void GraphicBufferSource::onFrameAvailable(const BufferItem& item __unused) {
     Mutex::Autolock autoLock(mMutex);
 
-    ALOGV("onFrameAvailable exec=%d avail=%zu",
-            mExecuting, mNumFramesAvailable);
+    ALOGV("onFrameAvailable: executing=%d available=%zu+%d",
+            mExecuting, mAvailableBuffers.size(), mNumAvailableUnacquiredBuffers);
+    ++mNumAvailableUnacquiredBuffers;
 
-    if (mEndOfStream || mSuspended) {
-        if (mEndOfStream) {
-            // This should only be possible if a new buffer was queued after
-            // EOS was signaled, i.e. the app is misbehaving.
+    // For BufferQueue we cannot acquire a buffer if we cannot immediately feed it to the codec
+    // UNLESS we are discarding this buffer (acquiring and immediately releasing it), which makes
+    // this an ugly logic.
+    // NOTE: We could also rely on our debug counter but that is meant only as a debug counter.
+    if (!areWeDiscardingAvailableBuffers_l() && mFreeCodecBuffers.empty()) {
+        // we may not be allowed to acquire a possibly encodable buffer, so just note that
+        // it is available
+        ALOGV("onFrameAvailable: cannot acquire buffer right now, do it later");
 
-            ALOGW("onFrameAvailable: EOS is set, ignoring frame");
-        } else {
-            ALOGV("onFrameAvailable: suspended, ignoring frame");
-        }
-
-        BufferItem item;
-        status_t err = mConsumer->acquireBuffer(&item, 0);
-        if (err == OK) {
-            if (item.mSlot < 0 ||
-                    item.mSlot >= BufferQueue::NUM_BUFFER_SLOTS) {
-                // Invalid buffer index
-                ALOGW("onFrameAvailable: corrupted buffer index (%d)",
-                        item.mSlot);
-                return;
-            }
-            mNumBufferAcquired++;
-            // If this is the first time we're seeing this buffer, add it to our
-            // slot table.
-            if (item.mGraphicBuffer != NULL) {
-                ALOGV("onFrameAvailable: setting mBufferSlot %d", item.mSlot);
-                mBufferSlot[item.mSlot] = item.mGraphicBuffer;
-                mBufferUseCount[item.mSlot] = 0;
-            }
-
-            releaseBuffer(item.mSlot, item.mFrameNumber,
-                    item.mGraphicBuffer, item.mFence);
-        }
+        ++mRepeatLastFrameGeneration; // cancel any pending frame repeat
         return;
     }
 
-    mNumFramesAvailable++;
+    VideoBuffer buffer;
+    status_t err = acquireBuffer_l(&buffer);
+    if (err != OK) {
+        ALOGE("onFrameAvailable: acquireBuffer returned err=%d", err);
+    } else {
+        onBufferAcquired_l(buffer);
+    }
+}
 
-    mRepeatBufferDeferred = false;
-    ++mRepeatLastFrameGeneration;
+bool GraphicBufferSource::areWeDiscardingAvailableBuffers_l() {
+    return mEndOfStreamSent // already sent EOS to codec
+            || mOMXNode == nullptr // there is no codec connected
+            || (mSuspended && mActionQueue.empty()) // we are suspended and not waiting for
+                                                    // any further action
+            || !mExecuting;
+}
 
-    if (mExecuting) {
-        fillCodecBuffer_l();
+void GraphicBufferSource::onBufferAcquired_l(const VideoBuffer &buffer) {
+    if (mEndOfStreamSent) {
+        // This should only be possible if a new buffer was queued after
+        // EOS was signaled, i.e. the app is misbehaving.
+        ALOGW("onFrameAvailable: EOS is sent, ignoring frame");
+    } else if (mOMXNode == NULL || (mSuspended && mActionQueue.empty())) {
+        // FIXME: if we are suspended but have a resume queued we will stop repeating the last
+        // frame. Is that the desired behavior?
+        ALOGV("onFrameAvailable: suspended, ignoring frame");
+    } else {
+        ++mRepeatLastFrameGeneration; // cancel any pending frame repeat
+        mAvailableBuffers.push_back(buffer);
+        if (mExecuting) {
+            fillCodecBuffer_l();
+        }
     }
 }
 
@@ -1039,51 +963,192 @@
 
     for (int i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) {
         if ((slotMask & 0x01) != 0) {
-            mBufferSlot[i] = NULL;
-            mBufferUseCount[i] = 0;
+            discardBufferInSlot_l(i);
         }
         slotMask >>= 1;
     }
 }
 
+void GraphicBufferSource::discardBufferInSlot_l(GraphicBufferSource::slot_id i) {
+    ssize_t bsi = mBufferSlots.indexOfKey(i);
+    if (bsi < 0) {
+        ALOGW("releasing an unpopulated slot: %d", i);
+    } else {
+        discardBufferAtSlotIndex_l(bsi);
+        mBufferSlots.removeItemsAt(bsi);
+    }
+}
+
+void GraphicBufferSource::discardBufferAtSlotIndex_l(ssize_t bsi) {
+    const std::shared_ptr<CachedBuffer>& buffer = mBufferSlots.valueAt(bsi);
+    // use -2 if there is no latest buffer, and -1 if it is no longer cached
+    slot_id latestBufferSlot =
+        mLatestBuffer.mBuffer == nullptr ? -2 : mLatestBuffer.mBuffer->getSlot();
+    ALOGV("releasing acquired buffer: [slot=%d, useCount=%ld], latest: [slot=%d]",
+            mBufferSlots.keyAt(bsi), buffer.use_count(), latestBufferSlot);
+    mBufferSlots.valueAt(bsi)->onDroppedFromCache();
+
+    // If the slot of an acquired buffer is discarded, that buffer will not have to be
+    // released to the producer, so account it here. However, it is possible that the
+    // acquired buffer has already been discarded so check if it still is.
+    if (buffer->isAcquired()) {
+        --mNumOutstandingAcquires;
+    }
+
+    // clear the buffer reference (not technically needed as caller either replaces or deletes
+    // it; done here for safety).
+    mBufferSlots.editValueAt(bsi).reset();
+    CHECK_DBG(buffer == nullptr);
+}
+
+void GraphicBufferSource::releaseAllAvailableBuffers_l() {
+    mAvailableBuffers.clear();
+    while (mNumAvailableUnacquiredBuffers > 0) {
+        VideoBuffer item;
+        if (acquireBuffer_l(&item) != OK) {
+            ALOGW("releaseAllAvailableBuffers: failed to acquire available unacquired buffer");
+            break;
+        }
+    }
+}
+
 // BufferQueue::ConsumerListener callback
 void GraphicBufferSource::onSidebandStreamChanged() {
     ALOG_ASSERT(false, "GraphicBufferSource can't consume sideband streams");
 }
 
-void GraphicBufferSource::setDefaultDataSpace(android_dataspace dataSpace) {
-    // no need for mutex as we are not yet running
-    ALOGD("setting dataspace: %#x", dataSpace);
-    mConsumer->setDefaultBufferDataSpace(dataSpace);
-    mLastDataSpace = dataSpace;
+status_t GraphicBufferSource::configure(
+        const sp<IOmxNodeWrapper>& omxNode,
+        int32_t dataSpace,
+        int32_t bufferCount,
+        uint32_t frameWidth,
+        uint32_t frameHeight,
+        uint32_t consumerUsage) {
+    if (omxNode == NULL) {
+        return BAD_VALUE;
+    }
+
+
+    // Call setMaxAcquiredBufferCount without lock.
+    // setMaxAcquiredBufferCount could call back to onBuffersReleased
+    // if the buffer count change results in releasing of existing buffers,
+    // which would lead to deadlock.
+    status_t err = mConsumer->setMaxAcquiredBufferCount(bufferCount);
+    if (err != NO_ERROR) {
+        ALOGE("Unable to set BQ max acquired buffer count to %u: %d",
+                bufferCount, err);
+        return err;
+    }
+
+    {
+        Mutex::Autolock autoLock(mMutex);
+        mOMXNode = omxNode;
+
+        err = mConsumer->setDefaultBufferSize(frameWidth, frameHeight);
+        if (err != NO_ERROR) {
+            ALOGE("Unable to set BQ default buffer size to %ux%u: %d",
+                    frameWidth, frameHeight, err);
+            return err;
+        }
+
+        consumerUsage |= GRALLOC_USAGE_HW_VIDEO_ENCODER;
+        mConsumer->setConsumerUsageBits(consumerUsage);
+
+        // Sets the default buffer data space
+        ALOGD("setting dataspace: %#x, acquired=%d", dataSpace, mNumOutstandingAcquires);
+        mConsumer->setDefaultBufferDataSpace((android_dataspace)dataSpace);
+        mLastDataspace = (android_dataspace)dataSpace;
+
+        mExecuting = false;
+        mSuspended = false;
+        mEndOfStream = false;
+        mEndOfStreamSent = false;
+        mSkipFramesBeforeNs = -1ll;
+        mFrameRepeatIntervalUs = -1ll;
+        mRepeatLastFrameGeneration = 0;
+        mOutstandingFrameRepeatCount = 0;
+        mLatestBuffer.mBuffer.reset();
+        mFrameRepeatBlockedOnCodecBuffer = false;
+        mFps = -1.0;
+        mCaptureFps = -1.0;
+        mBaseCaptureUs = -1ll;
+        mBaseFrameUs = -1ll;
+        mPrevCaptureUs = -1ll;
+        mPrevFrameUs = -1ll;
+        mFrameCount = 0;
+        mInputBufferTimeOffsetUs = 0;
+        mStopTimeUs = -1;
+        mActionQueue.clear();
+    }
+
+    return OK;
 }
 
-status_t GraphicBufferSource::setRepeatPreviousFrameDelayUs(
-        int64_t repeatAfterUs) {
+status_t GraphicBufferSource::setSuspend(bool suspend, int64_t suspendStartTimeUs) {
+    ALOGV("setSuspend=%d at time %lld us", suspend, (long long)suspendStartTimeUs);
+
+    Mutex::Autolock autoLock(mMutex);
+
+    if (mStopTimeUs != -1) {
+        ALOGE("setSuspend failed as STOP action is pending");
+        return INVALID_OPERATION;
+    }
+
+    // Push the action to the queue.
+    if (suspendStartTimeUs != -1) {
+        // suspendStartTimeUs must be smaller or equal to current systemTime.
+        int64_t currentSystemTimeUs = systemTime() / 1000;
+        if (suspendStartTimeUs > currentSystemTimeUs) {
+            ALOGE("setSuspend failed. %lld is larger than current system time %lld us",
+                    (long long)suspendStartTimeUs, (long long)currentSystemTimeUs);
+            return INVALID_OPERATION;
+        }
+        if (mLastActionTimeUs != -1 && suspendStartTimeUs < mLastActionTimeUs) {
+            ALOGE("setSuspend failed. %lld is smaller than last action time %lld us",
+                    (long long)suspendStartTimeUs, (long long)mLastActionTimeUs);
+            return INVALID_OPERATION;
+        }
+        mLastActionTimeUs = suspendStartTimeUs;
+        ActionItem action;
+        action.mAction = suspend ? ActionItem::PAUSE : ActionItem::RESUME;
+        action.mActionTimeUs = suspendStartTimeUs;
+        ALOGV("Push %s action into actionQueue", suspend ? "PAUSE" : "RESUME");
+        mActionQueue.push_back(action);
+    } else {
+        if (suspend) {
+            mSuspended = true;
+            releaseAllAvailableBuffers_l();
+            return OK;
+        } else {
+            mSuspended = false;
+            if (mExecuting && !haveAvailableBuffers_l()
+                    && mFrameRepeatBlockedOnCodecBuffer) {
+                if (repeatLatestBuffer_l()) {
+                    ALOGV("suspend/deferred repeatLatestBuffer_l SUCCESS");
+                    mFrameRepeatBlockedOnCodecBuffer = false;
+                } else {
+                    ALOGV("suspend/deferred repeatLatestBuffer_l FAILURE");
+                }
+            }
+        }
+    }
+    return OK;
+}
+
+status_t GraphicBufferSource::setRepeatPreviousFrameDelayUs(int64_t repeatAfterUs) {
+    ALOGV("setRepeatPreviousFrameDelayUs: delayUs=%lld", (long long)repeatAfterUs);
+
     Mutex::Autolock autoLock(mMutex);
 
     if (mExecuting || repeatAfterUs <= 0ll) {
         return INVALID_OPERATION;
     }
 
-    mRepeatAfterUs = repeatAfterUs;
-
+    mFrameRepeatIntervalUs = repeatAfterUs;
     return OK;
 }
 
-status_t GraphicBufferSource::setMaxTimestampGapUs(int64_t maxGapUs) {
-    Mutex::Autolock autoLock(mMutex);
-
-    if (mExecuting || maxGapUs <= 0ll) {
-        return INVALID_OPERATION;
-    }
-
-    mMaxTimestampGapUs = maxGapUs;
-
-    return OK;
-}
-
-status_t GraphicBufferSource::setInputBufferTimeOffset(int64_t timeOffsetUs) {
+status_t GraphicBufferSource::setTimeOffsetUs(int64_t timeOffsetUs) {
     Mutex::Autolock autoLock(mMutex);
 
     // timeOffsetUs must be negative for adjustment.
@@ -1096,6 +1161,8 @@
 }
 
 status_t GraphicBufferSource::setMaxFps(float maxFps) {
+    ALOGV("setMaxFps: maxFps=%lld", (long long)maxFps);
+
     Mutex::Autolock autoLock(mMutex);
 
     if (mExecuting) {
@@ -1112,34 +1179,101 @@
     return OK;
 }
 
-void GraphicBufferSource::setSkipFramesBeforeUs(int64_t skipFramesBeforeUs) {
+status_t GraphicBufferSource::setStartTimeUs(int64_t skipFramesBeforeUs) {
+    ALOGV("setStartTimeUs: skipFramesBeforeUs=%lld", (long long)skipFramesBeforeUs);
+
     Mutex::Autolock autoLock(mMutex);
 
     mSkipFramesBeforeNs =
             (skipFramesBeforeUs > 0) ? (skipFramesBeforeUs * 1000) : -1ll;
-}
-
-status_t GraphicBufferSource::setTimeLapseConfig(const TimeLapseConfig &config) {
-    Mutex::Autolock autoLock(mMutex);
-
-    if (mExecuting || config.mTimePerFrameUs <= 0ll || config.mTimePerCaptureUs <= 0ll) {
-        return INVALID_OPERATION;
-    }
-
-    mTimePerFrameUs = config.mTimePerFrameUs;
-    mTimePerCaptureUs = config.mTimePerCaptureUs;
 
     return OK;
 }
 
-void GraphicBufferSource::setColorAspects(const ColorAspects &aspects) {
+status_t GraphicBufferSource::setStopTimeUs(int64_t stopTimeUs) {
+    ALOGV("setStopTimeUs: %lld us", (long long)stopTimeUs);
     Mutex::Autolock autoLock(mMutex);
-    mColorAspects = aspects;
+
+    if (mStopTimeUs != -1) {
+        // Ignore if stop time has already been set
+        return OK;
+    }
+
+    // stopTimeUs must be smaller or equal to current systemTime.
+    int64_t currentSystemTimeUs = systemTime() / 1000;
+    if (stopTimeUs > currentSystemTimeUs) {
+        ALOGE("setStopTimeUs failed. %lld is larger than current system time %lld us",
+            (long long)stopTimeUs, (long long)currentSystemTimeUs);
+        return INVALID_OPERATION;
+    }
+    if (mLastActionTimeUs != -1 && stopTimeUs < mLastActionTimeUs) {
+        ALOGE("setSuspend failed. %lld is smaller than last action time %lld us",
+            (long long)stopTimeUs, (long long)mLastActionTimeUs);
+        return INVALID_OPERATION;
+    }
+    mLastActionTimeUs = stopTimeUs;
+    ActionItem action;
+    action.mAction = ActionItem::STOP;
+    action.mActionTimeUs = stopTimeUs;
+    mActionQueue.push_back(action);
+    mStopTimeUs = stopTimeUs;
+    return OK;
+}
+
+status_t GraphicBufferSource::setTimeLapseConfig(double fps, double captureFps) {
+    ALOGV("setTimeLapseConfig: fps=%lg, captureFps=%lg",
+            fps, captureFps);
+
+    Mutex::Autolock autoLock(mMutex);
+
+    if (mExecuting || !(fps > 0) || !(captureFps > 0)) {
+        return INVALID_OPERATION;
+    }
+
+    mFps = fps;
+    mCaptureFps = captureFps;
+
+    return OK;
+}
+
+status_t GraphicBufferSource::setColorAspects(int32_t aspectsPacked) {
+    Mutex::Autolock autoLock(mMutex);
+    mDefaultColorAspectsPacked = aspectsPacked;
+    ColorAspects colorAspects = ColorUtils::unpackToColorAspects(aspectsPacked);
     ALOGD("requesting color aspects (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s))",
-            aspects.mRange, asString(aspects.mRange),
-            aspects.mPrimaries, asString(aspects.mPrimaries),
-            aspects.mMatrixCoeffs, asString(aspects.mMatrixCoeffs),
-            aspects.mTransfer, asString(aspects.mTransfer));
+            colorAspects.mRange, asString(colorAspects.mRange),
+            colorAspects.mPrimaries, asString(colorAspects.mPrimaries),
+            colorAspects.mMatrixCoeffs, asString(colorAspects.mMatrixCoeffs),
+            colorAspects.mTransfer, asString(colorAspects.mTransfer));
+
+    return OK;
+}
+
+status_t GraphicBufferSource::signalEndOfInputStream() {
+    Mutex::Autolock autoLock(mMutex);
+    ALOGV("signalEndOfInputStream: executing=%d available=%zu+%d eos=%d",
+            mExecuting, mAvailableBuffers.size(), mNumAvailableUnacquiredBuffers, mEndOfStream);
+
+    if (mEndOfStream) {
+        ALOGE("EOS was already signaled");
+        return INVALID_OPERATION;
+    }
+
+    // Set the end-of-stream flag.  If no frames are pending from the
+    // BufferQueue, and a codec buffer is available, and we're executing,
+    // and there is no stop timestamp, we initiate the EOS from here.
+    // Otherwise, we'll let codecBufferEmptied() (or omxExecuting) do it.
+    //
+    // Note: if there are no pending frames and all codec buffers are
+    // available, we *must* submit the EOS from here or we'll just
+    // stall since no future events are expected.
+    mEndOfStream = true;
+
+    if (mStopTimeUs == -1 && mExecuting && !haveAvailableBuffers_l()) {
+        submitEndOfInputStream_l();
+    }
+
+    return OK;
 }
 
 void GraphicBufferSource::onMessageReceived(const sp<AMessage> &msg) {
@@ -1156,17 +1290,16 @@
                 break;
             }
 
-            if (!mExecuting || mNumFramesAvailable > 0) {
+            if (!mExecuting || haveAvailableBuffers_l()) {
                 break;
             }
 
             bool success = repeatLatestBuffer_l();
-
             if (success) {
                 ALOGV("repeatLatestBuffer_l SUCCESS");
             } else {
                 ALOGV("repeatLatestBuffer_l FAILURE");
-                mRepeatBufferDeferred = true;
+                mFrameRepeatBlockedOnCodecBuffer = true;
             }
             break;
         }
diff --git a/media/libstagefright/omx/GraphicBufferSource.h b/media/libstagefright/omx/GraphicBufferSource.h
index b3fcd1b..3df1aa1 100644
--- a/media/libstagefright/omx/GraphicBufferSource.h
+++ b/media/libstagefright/omx/GraphicBufferSource.h
@@ -22,19 +22,27 @@
 #include <gui/BufferQueue.h>
 #include <utils/RefBase.h>
 
-#include <OMX_Core.h>
 #include <VideoAPI.h>
-#include "../include/OMXNodeInstance.h"
+#include <media/IOMX.h>
+#include <media/OMXFenceParcelable.h>
 #include <media/stagefright/foundation/ABase.h>
 #include <media/stagefright/foundation/AHandlerReflector.h>
 #include <media/stagefright/foundation/ALooper.h>
 
+#include <android/BnGraphicBufferSource.h>
+#include <android/BnOMXBufferSource.h>
+
+#include "IOmxNodeWrapper.h"
+
 namespace android {
 
+using ::android::binder::Status;
+
 struct FrameDropper;
 
 /*
- * This class is used to feed OMX codecs from a Surface via BufferQueue.
+ * This class is used to feed OMX codecs from a Surface via BufferQueue or
+ * HW producer.
  *
  * Instances of the class don't run on a dedicated thread.  Instead,
  * various events trigger data movement:
@@ -48,21 +56,34 @@
  * Frames of data (and, perhaps, the end-of-stream indication) can arrive
  * before the codec is in the "executing" state, so we need to queue
  * things up until we're ready to go.
+ *
+ * The GraphicBufferSource can be configure dynamically to discard frames
+ * from the source:
+ *
+ * - if their timestamp is less than a start time
+ * - if the source is suspended or stopped and the suspend/stop-time is reached
+ * - if EOS was signaled
+ * - if there is no encoder connected to it
+ *
+ * The source, furthermore, may choose to not encode (drop) frames if:
+ *
+ * - to throttle the frame rate (keep it under a certain limit)
+ *
+ * Finally the source may optionally hold onto the last non-discarded frame
+ * (even if it was dropped) to reencode it after an interval if no further
+ * frames are sent by the producer.
  */
 class GraphicBufferSource : public BufferQueue::ConsumerListener {
 public:
-    GraphicBufferSource(
-            OMXNodeInstance* nodeInstance,
-            uint32_t bufferWidth,
-            uint32_t bufferHeight,
-            uint32_t bufferCount,
-            uint32_t consumerUsage,
-            const sp<IGraphicBufferConsumer> &consumer = NULL
-    );
+    GraphicBufferSource();
 
     virtual ~GraphicBufferSource();
 
-    status_t init();
+    // We can't throw an exception if the constructor fails, so we just set
+    // this and require that the caller test the value.
+    status_t initCheck() const {
+        return mInitCheck;
+    }
 
     // Returns the handle to the producer side of the BufferQueue.  Buffers
     // queued on this will be received by GraphicBufferSource.
@@ -70,44 +91,57 @@
         return mProducer;
     }
 
-    // Sets the default buffer data space
-    void setDefaultDataSpace(android_dataspace dataSpace);
+    // OmxBufferSource interface
+    // ------------------------------
 
     // This is called when OMX transitions to OMX_StateExecuting, which means
     // we can start handing it buffers.  If we already have buffers of data
     // sitting in the BufferQueue, this will send them to the codec.
-    void omxExecuting();
+    Status onOmxExecuting();
 
     // This is called when OMX transitions to OMX_StateIdle, indicating that
     // the codec is meant to return all buffers back to the client for them
     // to be freed. Do NOT submit any more buffers to the component.
-    void omxIdle();
+    Status onOmxIdle();
 
     // This is called when OMX transitions to OMX_StateLoaded, indicating that
     // we are shutting down.
-    void omxLoaded();
+    Status onOmxLoaded();
 
     // A "codec buffer", i.e. a buffer that can be used to pass data into
     // the encoder, has been allocated.  (This call does not call back into
     // OMXNodeInstance.)
-    void addCodecBuffer(OMX_BUFFERHEADERTYPE* header);
+    Status onInputBufferAdded(int32_t bufferId);
 
     // Called from OnEmptyBufferDone.  If we have a BQ buffer available,
     // fill it with a new frame of data; otherwise, just mark it as available.
-    void codecBufferEmptied(OMX_BUFFERHEADERTYPE* header, int fenceFd);
+    Status onInputBufferEmptied(int32_t bufferId, int fenceFd);
 
-    // Called when omx_message::FILL_BUFFER_DONE is received. (Currently the
-    // buffer source will fix timestamp in the header if needed.)
-    void codecBufferFilled(OMX_BUFFERHEADERTYPE* header);
+    // IGraphicBufferSource interface
+    // ------------------------------
 
-    // This is called after the last input frame has been submitted.  We
-    // need to submit an empty buffer with the EOS flag set.  If we don't
-    // have a codec buffer ready, we just set the mEndOfStream flag.
+    // Configure the buffer source to be used with an OMX node with the default
+    // data space.
+    status_t configure(
+        const sp<IOmxNodeWrapper> &omxNode,
+        int32_t dataSpace,
+        int32_t bufferCount,
+        uint32_t frameWidth,
+        uint32_t frameHeight,
+        uint32_t consumerUsage);
+
+    // This is called after the last input frame has been submitted or buffer
+    // timestamp is greater or equal than stopTimeUs. We need to submit an empty
+    // buffer with the EOS flag set.  If we don't have a codec buffer ready,
+    // we just set the mEndOfStream flag.
     status_t signalEndOfInputStream();
 
     // If suspend is true, all incoming buffers (including those currently
-    // in the BufferQueue) will be discarded until the suspension is lifted.
-    void suspend(bool suspend);
+    // in the BufferQueue) with timestamp larger than timeUs will be discarded
+    // until the suspension is lifted. If suspend is false, all incoming buffers
+    // including those currently in the BufferQueue) with timestamp larger than
+    // timeUs will be processed. timeUs uses SYSTEM_TIME_MONOTONIC time base.
+    status_t setSuspend(bool suspend, int64_t timeUs);
 
     // Specifies the interval after which we requeue the buffer previously
     // queued to the encoder. This is useful in the case of surface flinger
@@ -118,198 +152,232 @@
     // state and once this behaviour is specified it cannot be reset.
     status_t setRepeatPreviousFrameDelayUs(int64_t repeatAfterUs);
 
-    // When set, the timestamp fed to the encoder will be modified such that
-    // the gap between two adjacent frames is capped at maxGapUs. Timestamp
-    // will be restored to the original when the encoded frame is returned to
-    // the client.
-    // This is to solve a problem in certain real-time streaming case, where
-    // encoder's rate control logic produces huge frames after a long period
-    // of suspension on input.
-    status_t setMaxTimestampGapUs(int64_t maxGapUs);
-
     // Sets the input buffer timestamp offset.
     // When set, the sample's timestamp will be adjusted with the timeOffsetUs.
-    status_t setInputBufferTimeOffset(int64_t timeOffsetUs);
+    status_t setTimeOffsetUs(int64_t timeOffsetUs);
 
     // When set, the max frame rate fed to the encoder will be capped at maxFps.
     status_t setMaxFps(float maxFps);
 
-    struct TimeLapseConfig {
-        int64_t mTimePerFrameUs;   // the time (us) between two frames for playback
-        int64_t mTimePerCaptureUs; // the time (us) between two frames for capture
-    };
-
     // Sets the time lapse (or slow motion) parameters.
     // When set, the sample's timestamp will be modified to playback framerate,
     // and capture timestamp will be modified to capture rate.
-    status_t setTimeLapseConfig(const TimeLapseConfig &config);
+    status_t setTimeLapseConfig(double fps, double captureFps);
 
     // Sets the start time us (in system time), samples before which should
     // be dropped and not submitted to encoder
-    void setSkipFramesBeforeUs(int64_t startTimeUs);
+    status_t setStartTimeUs(int64_t startTimeUs);
+
+    // Sets the stop time us (in system time), samples after which should be dropped
+    // and not submitted to encoder. timeUs uses SYSTEM_TIME_MONOTONIC time base.
+    status_t setStopTimeUs(int64_t stopTimeUs);
 
     // Sets the desired color aspects, e.g. to be used when producer does not specify a dataspace.
-    void setColorAspects(const ColorAspects &aspects);
+    status_t setColorAspects(int32_t aspectsPacked);
 
 protected:
+    // BQ::ConsumerListener interface
+    // ------------------------------
+
     // BufferQueue::ConsumerListener interface, called when a new frame of
     // data is available.  If we're executing and a codec buffer is
     // available, we acquire the buffer, copy the GraphicBuffer reference
     // into the codec buffer, and call Empty[This]Buffer.  If we're not yet
     // executing or there's no codec buffer available, we just increment
     // mNumFramesAvailable and return.
-    virtual void onFrameAvailable(const BufferItem& item);
+    void onFrameAvailable(const BufferItem& item) override;
 
     // BufferQueue::ConsumerListener interface, called when the client has
     // released one or more GraphicBuffers.  We clear out the appropriate
     // set of mBufferSlot entries.
-    virtual void onBuffersReleased();
+    void onBuffersReleased() override;
 
     // BufferQueue::ConsumerListener interface, called when the client has
     // changed the sideband stream. GraphicBufferSource doesn't handle sideband
     // streams so this is a no-op (and should never be called).
-    virtual void onSidebandStreamChanged();
+    void onSidebandStreamChanged() override;
 
 private:
-    // PersistentProxyListener is similar to BufferQueue::ProxyConsumerListener
-    // except that it returns (acquire/detach/re-attache/release) buffers
-    // in onFrameAvailable() if the actual consumer object is no longer valid.
-    //
-    // This class is used in persistent input surface case to prevent buffer
-    // loss when onFrameAvailable() is received while we don't have a valid
-    // consumer around.
-    class PersistentProxyListener : public BnConsumerListener {
-        public:
-            PersistentProxyListener(
-                    const wp<IGraphicBufferConsumer> &consumer,
-                    const wp<ConsumerListener>& consumerListener);
-            virtual ~PersistentProxyListener();
-            virtual void onFrameAvailable(const BufferItem& item) override;
-            virtual void onFrameReplaced(const BufferItem& item) override;
-            virtual void onBuffersReleased() override;
-            virtual void onSidebandStreamChanged() override;
-         private:
-            // mConsumerListener is a weak reference to the IConsumerListener.
-            wp<ConsumerListener> mConsumerListener;
-            // mConsumer is a weak reference to the IGraphicBufferConsumer, use
-            // a weak ref to avoid circular ref between mConsumer and this class
-            wp<IGraphicBufferConsumer> mConsumer;
-    };
-
-    // Keep track of codec input buffers.  They may either be available
-    // (mGraphicBuffer == NULL) or in use by the codec.
-    struct CodecBuffer {
-        OMX_BUFFERHEADERTYPE* mHeader;
-
-        // buffer producer's frame-number for buffer
-        uint64_t mFrameNumber;
-
-        // buffer producer's buffer slot for buffer
-        int mSlot;
-
-        sp<GraphicBuffer> mGraphicBuffer;
-    };
-
-    // Returns the index of an available codec buffer.  If none are
-    // available, returns -1.  Mutex must be held by caller.
-    int findAvailableCodecBuffer_l();
-
-    // Returns true if a codec buffer is available.
-    bool isCodecBufferAvailable_l() {
-        return findAvailableCodecBuffer_l() >= 0;
-    }
-
-    // Finds the mCodecBuffers entry that matches.  Returns -1 if not found.
-    int findMatchingCodecBuffer_l(const OMX_BUFFERHEADERTYPE* header);
-
-    // Fills a codec buffer with a frame from the BufferQueue.  This must
-    // only be called when we know that a frame of data is ready (i.e. we're
-    // in the onFrameAvailable callback, or if we're in codecBufferEmptied
-    // and mNumFramesAvailable is nonzero).  Returns without doing anything if
-    // we don't have a codec buffer available.
-    //
-    // Returns true if we successfully filled a codec buffer with a BQ buffer.
-    bool fillCodecBuffer_l();
-
-    // Marks the mCodecBuffers entry as in-use, copies the GraphicBuffer
-    // reference into the codec buffer, and submits the data to the codec.
-    status_t submitBuffer_l(const BufferItem &item, int cbi);
-
-    // Submits an empty buffer, with the EOS flag set.   Returns without
-    // doing anything if we don't have a codec buffer available.
-    void submitEndOfInputStream_l();
-
-    // Release buffer to the consumer
-    void releaseBuffer(
-            int &id, uint64_t frameNum,
-            const sp<GraphicBuffer> buffer, const sp<Fence> &fence);
-
-    void setLatestBuffer_l(const BufferItem &item, bool dropped);
-    bool repeatLatestBuffer_l();
-    int64_t getTimestamp(const BufferItem &item);
-
-    // called when the data space of the input buffer changes
-    void onDataSpaceChanged_l(android_dataspace dataSpace, android_pixel_format pixelFormat);
-
     // Lock, covers all member variables.
     mutable Mutex mMutex;
 
     // Used to report constructor failure.
     status_t mInitCheck;
 
-    // Pointer back to the object that contains us.  We send buffers here.
-    OMXNodeInstance* mNodeInstance;
+    // Graphic buffer reference objects
+    // --------------------------------
+
+    // These are used to keep a shared reference to GraphicBuffers and gralloc handles owned by the
+    // GraphicBufferSource as well as to manage the cache slots. Separate references are owned by
+    // the buffer cache (controlled by the buffer queue/buffer producer) and the codec.
+
+    // When we get a buffer from the producer (BQ) it designates them to be cached into specific
+    // slots. Each slot owns a shared reference to the graphic buffer (we track these using
+    // CachedBuffer) that is in that slot, but the producer controls the slots.
+    struct CachedBuffer;
+
+    // When we acquire a buffer, we must release it back to the producer once we (or the codec)
+    // no longer uses it (as long as the buffer is still in the cache slot). We use shared
+    // AcquiredBuffer instances for this purpose - and we call release buffer when the last
+    // reference is relinquished.
+    struct AcquiredBuffer;
+
+    // We also need to keep some extra metadata (other than the buffer reference) for acquired
+    // buffers. These are tracked in VideoBuffer struct.
+    struct VideoBuffer {
+        std::shared_ptr<AcquiredBuffer> mBuffer;
+        nsecs_t mTimestampNs;
+        android_dataspace_t mDataspace;
+    };
+
+    // Cached and aquired buffers
+    // --------------------------------
+
+    typedef int slot_id;
+
+    // Maps a slot to the cached buffer in that slot
+    KeyedVector<slot_id, std::shared_ptr<CachedBuffer>> mBufferSlots;
+
+    // Queue of buffers acquired in chronological order that are not yet submitted to the codec
+    List<VideoBuffer> mAvailableBuffers;
+
+    // Number of buffers that have been signaled by the producer that they are available, but
+    // we've been unable to acquire them due to our max acquire count
+    int32_t mNumAvailableUnacquiredBuffers;
+
+    // Number of frames acquired from consumer (debug only)
+    // (as in aquireBuffer called, and release needs to be called)
+    int32_t mNumOutstandingAcquires;
+
+    // Acquire a buffer from the BQ and store it in |item| if successful
+    // \return OK on success, or error on failure.
+    status_t acquireBuffer_l(VideoBuffer *item);
+
+    // Called when a buffer was acquired from the producer
+    void onBufferAcquired_l(const VideoBuffer &buffer);
+
+    // marks the buffer at the slot no longer cached, and accounts for the outstanding
+    // acquire count
+    void discardBufferInSlot_l(slot_id i);
+
+    // marks the buffer at the slot index no longer cached, and accounts for the outstanding
+    // acquire count
+    void discardBufferAtSlotIndex_l(ssize_t bsi);
+
+    // release all acquired and unacquired available buffers
+    // This method will return if it fails to acquire an unacquired available buffer, which will
+    // leave mNumAvailableUnacquiredBuffers positive on return.
+    void releaseAllAvailableBuffers_l();
+
+    // returns whether we have any available buffers (acquired or not-yet-acquired)
+    bool haveAvailableBuffers_l() const {
+        return !mAvailableBuffers.empty() || mNumAvailableUnacquiredBuffers > 0;
+    }
+
+    // Codec buffers
+    // -------------
+
+    // When we queue buffers to the encoder, we must hold the references to the graphic buffers
+    // in those buffers - as the producer may free the slots.
+
+    typedef int32_t codec_buffer_id;
+
+    // set of codec buffer ID-s of buffers available to fill
+    List<codec_buffer_id> mFreeCodecBuffers;
+
+    // maps codec buffer ID-s to buffer info submitted to the codec. Used to keep a reference for
+    // the graphics buffer.
+    KeyedVector<codec_buffer_id, std::shared_ptr<AcquiredBuffer>> mSubmittedCodecBuffers;
+
+    // Processes the next acquired frame. If there is no available codec buffer, it returns false
+    // without any further action.
+    //
+    // Otherwise, it consumes the next acquired frame and determines if it needs to be discarded or
+    // dropped. If neither are needed, it submits it to the codec. It also saves the latest
+    // non-dropped frame and submits it for repeat encoding (if this is enabled).
+    //
+    // \require there must be an acquired frame (i.e. we're in the onFrameAvailable callback,
+    // or if we're in codecBufferEmptied and mNumFramesAvailable is nonzero).
+    // \require codec must be executing
+    // \returns true if acquired (and handled) the next frame. Otherwise, false.
+    bool fillCodecBuffer_l();
+
+    // Calculates the media timestamp for |item| and on success it submits the buffer to the codec,
+    // while also keeping a reference for it in mSubmittedCodecBuffers.
+    // Returns UNKNOWN_ERROR if the buffer was not submitted due to buffer timestamp. Otherwise,
+    // it returns any submit success or error value returned by the codec.
+    status_t submitBuffer_l(const VideoBuffer &item);
+
+    // Submits an empty buffer, with the EOS flag set if there is an available codec buffer and
+    // sets mEndOfStreamSent flag. Does nothing if there is no codec buffer available.
+    void submitEndOfInputStream_l();
+
+    // Set to true if we want to send end-of-stream after we run out of available frames from the
+    // producer
+    bool mEndOfStream;
+
+    // Flag that the EOS was submitted to the encoder
+    bool mEndOfStreamSent;
+
+    // Dataspace for the last frame submitted to the codec
+    android_dataspace mLastDataspace;
+
+    // Default color aspects for this source
+    int32_t mDefaultColorAspectsPacked;
+
+    // called when the data space of the input buffer changes
+    void onDataspaceChanged_l(android_dataspace dataspace, android_pixel_format pixelFormat);
+
+    // Pointer back to the Omx node that created us.  We send buffers here.
+    sp<IOmxNodeWrapper> mOMXNode;
 
     // Set by omxExecuting() / omxIdling().
     bool mExecuting;
 
     bool mSuspended;
 
-    // Last dataspace seen
-    android_dataspace mLastDataSpace;
+    // returns true if this source is unconditionally discarding acquired buffers at the moment
+    // regardless of the metadata of those buffers
+    bool areWeDiscardingAvailableBuffers_l();
 
     // Our BufferQueue interfaces. mProducer is passed to the producer through
     // getIGraphicBufferProducer, and mConsumer is used internally to retrieve
     // the buffers queued by the producer.
-    bool mIsPersistent;
     sp<IGraphicBufferProducer> mProducer;
     sp<IGraphicBufferConsumer> mConsumer;
 
-    // Number of frames pending in BufferQueue that haven't yet been
-    // forwarded to the codec.
-    size_t mNumFramesAvailable;
+    // The time to stop sending buffers.
+    int64_t mStopTimeUs;
 
-    // Number of frames acquired from consumer (debug only)
-    int32_t mNumBufferAcquired;
+    struct ActionItem {
+        typedef enum {
+            PAUSE,
+            RESUME,
+            STOP
+        } ActionType;
+        ActionType mAction;
+        int64_t mActionTimeUs;
+    };
 
-    // Set to true if we want to send end-of-stream after we run out of
-    // frames in BufferQueue.
-    bool mEndOfStream;
-    bool mEndOfStreamSent;
+    // Maintain last action timestamp to ensure all the action timestamps are
+    // monotonically increasing.
+    int64_t mLastActionTimeUs;
 
-    // Cache of GraphicBuffers from the buffer queue.  When the codec
-    // is done processing a GraphicBuffer, we can use this to map back
-    // to a slot number.
-    sp<GraphicBuffer> mBufferSlot[BufferQueue::NUM_BUFFER_SLOTS];
-    int32_t mBufferUseCount[BufferQueue::NUM_BUFFER_SLOTS];
-
-    // Tracks codec buffers.
-    Vector<CodecBuffer> mCodecBuffers;
+    // An action queue that queue up all the actions sent to GraphicBufferSource.
+    // STOP action should only show up at the end of the list as all the actions
+    // after a STOP action will be discarded. mActionQueue is protected by mMutex.
+    List<ActionItem> mActionQueue;
 
     ////
     friend struct AHandlerReflector<GraphicBufferSource>;
 
     enum {
-        kWhatRepeatLastFrame,
+        kWhatRepeatLastFrame,   ///< queue last frame for reencoding
     };
     enum {
         kRepeatLastFrameCount = 10,
     };
 
-    KeyedVector<int64_t, int64_t> mOriginalTimeUs;
-    int64_t mMaxTimestampGapUs;
-    int64_t mPrevOriginalTimeUs;
-    int64_t mPrevModifiedTimeUs;
     int64_t mSkipFramesBeforeNs;
 
     sp<FrameDropper> mFrameDropper;
@@ -317,29 +385,86 @@
     sp<ALooper> mLooper;
     sp<AHandlerReflector<GraphicBufferSource> > mReflector;
 
-    int64_t mRepeatAfterUs;
-    int32_t mRepeatLastFrameGeneration;
-    int64_t mRepeatLastFrameTimestamp;
-    int32_t mRepeatLastFrameCount;
+    // Repeat last frame feature
+    // -------------------------
+    // configuration parameter: repeat interval for frame repeating (<0 if repeating is disabled)
+    int64_t mFrameRepeatIntervalUs;
 
-    int mLatestBufferId;
-    uint64_t mLatestBufferFrameNum;
-    sp<Fence> mLatestBufferFence;
+    // current frame repeat generation - used to cancel a pending frame repeat
+    int32_t mRepeatLastFrameGeneration;
+
+    // number of times to repeat latest frame (0 = none)
+    int32_t mOutstandingFrameRepeatCount;
 
     // The previous buffer should've been repeated but
     // no codec buffer was available at the time.
-    bool mRepeatBufferDeferred;
+    bool mFrameRepeatBlockedOnCodecBuffer;
+
+    // hold a reference to the last acquired (and not discarded) frame for frame repeating
+    VideoBuffer mLatestBuffer;
+
+    // queue last frame for reencode after the repeat interval.
+    void queueFrameRepeat_l();
+
+    // save |item| as the latest buffer and queue it for reencode (repeat)
+    void setLatestBuffer_l(const VideoBuffer &item);
+
+    // submit last frame to encoder and queue it for reencode
+    // \return true if buffer was submitted, false if it wasn't (e.g. source is suspended, there
+    // is no available codec buffer)
+    bool repeatLatestBuffer_l();
 
     // Time lapse / slow motion configuration
-    int64_t mTimePerCaptureUs;
-    int64_t mTimePerFrameUs;
+    // --------------------------------------
+
+    // desired frame rate for encoding - value <= 0 if undefined
+    double mFps;
+
+    // desired frame rate for capture - value <= 0 if undefined
+    double mCaptureFps;
+
+    // Time lapse mode is enabled if the capture frame rate is defined and it is
+    // smaller than half the encoding frame rate (if defined). In this mode,
+    // frames that come in between the capture interval (the reciprocal of the
+    // capture frame rate) are dropped and the encoding timestamp is adjusted to
+    // match the desired encoding frame rate.
+    //
+    // Slow motion mode is enabled if both encoding and capture frame rates are
+    // defined and the encoding frame rate is less than half the capture frame
+    // rate. In this mode, the source is expected to produce frames with an even
+    // timestamp interval (after rounding) with the configured capture fps. The
+    // first source timestamp is used as the source base time. Afterwards, the
+    // timestamp of each source frame is snapped to the nearest expected capture
+    // timestamp and scaled to match the configured encoding frame rate.
+
+    // These modes must be enabled before using this source.
+
+    // adjusted capture timestamp of the base frame
+    int64_t mBaseCaptureUs;
+
+    // adjusted encoding timestamp of the base frame
+    int64_t mBaseFrameUs;
+
+    // number of frames from the base time
+    int64_t mFrameCount;
+
+    // adjusted capture timestamp for previous frame (negative if there were
+    // none)
     int64_t mPrevCaptureUs;
+
+    // adjusted media timestamp for previous frame (negative if there were none)
     int64_t mPrevFrameUs;
 
+    // desired offset between media time and capture time
     int64_t mInputBufferTimeOffsetUs;
 
-    MetadataBufferType mMetadataBufferType;
-    ColorAspects mColorAspects;
+    // Calculates and outputs the timestamp to use for a buffer with a specific buffer timestamp
+    // |bufferTimestampNs|. Returns false on failure (buffer too close or timestamp is moving
+    // backwards). Otherwise, stores the media timestamp in |*codecTimeUs| and returns true.
+    //
+    // This method takes into account the start time offset and any time lapse or slow motion time
+    // adjustment requests.
+    bool calculateCodecTimestamp_l(nsecs_t bufferTimeNs, int64_t *codecTimeUs);
 
     void onMessageReceived(const sp<AMessage> &msg);
 
diff --git a/media/libstagefright/omx/IOmxNodeWrapper.h b/media/libstagefright/omx/IOmxNodeWrapper.h
new file mode 100644
index 0000000..cd44e67
--- /dev/null
+++ b/media/libstagefright/omx/IOmxNodeWrapper.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef IOMX_NODE_WRAPPER_SOURCE_H_
+#define IOMX_NODE_WRAPPER_SOURCE_H_
+
+#include <utils/RefBase.h>
+#include <utils/StrongPointer.h>
+#include <ui/GraphicBuffer.h>
+
+#include <stdint.h>
+
+namespace android {
+
+struct IOmxNodeWrapper : public RefBase {
+    virtual status_t emptyBuffer(
+            int32_t bufferId, uint32_t flags,
+            const sp<GraphicBuffer> &buffer = nullptr,
+            int64_t timestamp = 0, int fenceFd = -1) = 0;
+    virtual void dispatchDataSpaceChanged(
+            int32_t dataSpace, int32_t aspects, int32_t pixelFormat) = 0;
+};
+
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
diff --git a/media/libstagefright/omx/OMX.cpp b/media/libstagefright/omx/OMX.cpp
index 2e989b5..8c1141d 100644
--- a/media/libstagefright/omx/OMX.cpp
+++ b/media/libstagefright/omx/OMX.cpp
@@ -26,149 +26,18 @@
 
 #include "../include/OMXNodeInstance.h"
 
-#include <binder/IMemory.h>
 #include <media/stagefright/foundation/ADebug.h>
-#include <utils/threads.h>
+#include "BWGraphicBufferSource.h"
 
 #include "OMXMaster.h"
 #include "OMXUtils.h"
 
-#include <OMX_AsString.h>
-#include <OMX_Component.h>
-#include <OMX_VideoExt.h>
-
 namespace android {
 
 // node ids are created by concatenating the pid with a 16-bit counter
 static size_t kMaxNodeInstances = (1 << 16);
 
-////////////////////////////////////////////////////////////////////////////////
-
-// This provides the underlying Thread used by CallbackDispatcher.
-// Note that deriving CallbackDispatcher from Thread does not work.
-
-struct OMX::CallbackDispatcherThread : public Thread {
-    CallbackDispatcherThread(CallbackDispatcher *dispatcher)
-        : mDispatcher(dispatcher) {
-    }
-
-private:
-    CallbackDispatcher *mDispatcher;
-
-    bool threadLoop();
-
-    CallbackDispatcherThread(const CallbackDispatcherThread &);
-    CallbackDispatcherThread &operator=(const CallbackDispatcherThread &);
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-struct OMX::CallbackDispatcher : public RefBase {
-    CallbackDispatcher(OMXNodeInstance *owner);
-
-    // Posts |msg| to the listener's queue. If |realTime| is true, the listener thread is notified
-    // that a new message is available on the queue. Otherwise, the message stays on the queue, but
-    // the listener is not notified of it. It will process this message when a subsequent message
-    // is posted with |realTime| set to true.
-    void post(const omx_message &msg, bool realTime = true);
-
-    bool loop();
-
-protected:
-    virtual ~CallbackDispatcher();
-
-private:
-    Mutex mLock;
-
-    OMXNodeInstance *mOwner;
-    bool mDone;
-    Condition mQueueChanged;
-    std::list<omx_message> mQueue;
-
-    sp<CallbackDispatcherThread> mThread;
-
-    void dispatch(std::list<omx_message> &messages);
-
-    CallbackDispatcher(const CallbackDispatcher &);
-    CallbackDispatcher &operator=(const CallbackDispatcher &);
-};
-
-OMX::CallbackDispatcher::CallbackDispatcher(OMXNodeInstance *owner)
-    : mOwner(owner),
-      mDone(false) {
-    mThread = new CallbackDispatcherThread(this);
-    mThread->run("OMXCallbackDisp", ANDROID_PRIORITY_FOREGROUND);
-}
-
-OMX::CallbackDispatcher::~CallbackDispatcher() {
-    {
-        Mutex::Autolock autoLock(mLock);
-
-        mDone = true;
-        mQueueChanged.signal();
-    }
-
-    // A join on self can happen if the last ref to CallbackDispatcher
-    // is released within the CallbackDispatcherThread loop
-    status_t status = mThread->join();
-    if (status != WOULD_BLOCK) {
-        // Other than join to self, the only other error return codes are
-        // whatever readyToRun() returns, and we don't override that
-        CHECK_EQ(status, (status_t)NO_ERROR);
-    }
-}
-
-void OMX::CallbackDispatcher::post(const omx_message &msg, bool realTime) {
-    Mutex::Autolock autoLock(mLock);
-
-    mQueue.push_back(msg);
-    if (realTime) {
-        mQueueChanged.signal();
-    }
-}
-
-void OMX::CallbackDispatcher::dispatch(std::list<omx_message> &messages) {
-    if (mOwner == NULL) {
-        ALOGV("Would have dispatched a message to a node that's already gone.");
-        return;
-    }
-    mOwner->onMessages(messages);
-}
-
-bool OMX::CallbackDispatcher::loop() {
-    for (;;) {
-        std::list<omx_message> messages;
-
-        {
-            Mutex::Autolock autoLock(mLock);
-            while (!mDone && mQueue.empty()) {
-                mQueueChanged.wait(mLock);
-            }
-
-            if (mDone) {
-                break;
-            }
-
-            messages.swap(mQueue);
-        }
-
-        dispatch(messages);
-    }
-
-    return false;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-bool OMX::CallbackDispatcherThread::threadLoop() {
-    return mDispatcher->loop();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-OMX::OMX()
-    : mMaster(new OMXMaster),
-      mNodeCounter(0) {
+OMX::OMX() : mMaster(new OMXMaster), mParser() {
 }
 
 OMX::~OMX() {
@@ -177,7 +46,7 @@
 }
 
 void OMX::binderDied(const wp<IBinder> &the_late_who) {
-    OMXNodeInstance *instance;
+    sp<OMXNodeInstance> instance;
 
     {
         Mutex::Autolock autoLock(mLock);
@@ -192,24 +61,9 @@
 
         instance = mLiveNodes.editValueAt(index);
         mLiveNodes.removeItemsAt(index);
-
-        index = mDispatchers.indexOfKey(instance->nodeID());
-        CHECK(index >= 0);
-        mDispatchers.removeItemsAt(index);
-
-        invalidateNodeID_l(instance->nodeID());
     }
 
-    instance->onObserverDied(mMaster);
-}
-
-bool OMX::isSecure(node_id node) {
-    OMXNodeInstance *instance = findInstance(node);
-    return (instance == NULL ? false : instance->isSecure());
-}
-
-bool OMX::livesLocally(node_id /* node */, pid_t pid) {
-    return pid == getpid();
+    instance->onObserverDied();
 }
 
 status_t OMX::listNodes(List<ComponentInfo> *list) {
@@ -242,48 +96,51 @@
 
 status_t OMX::allocateNode(
         const char *name, const sp<IOMXObserver> &observer,
-        sp<IBinder> *nodeBinder, node_id *node) {
+        sp<IOMXNode> *omxNode) {
     Mutex::Autolock autoLock(mLock);
 
-    *node = 0;
-    if (nodeBinder != NULL) {
-        *nodeBinder = NULL;
-    }
+    omxNode->clear();
 
-    if (mNodeIDToInstance.size() == kMaxNodeInstances) {
-        // all possible node IDs are in use
+    if (mLiveNodes.size() == kMaxNodeInstances) {
         return NO_MEMORY;
     }
 
-    OMXNodeInstance *instance = new OMXNodeInstance(this, observer, name);
+    sp<OMXNodeInstance> instance = new OMXNodeInstance(this, observer, name);
 
     OMX_COMPONENTTYPE *handle;
     OMX_ERRORTYPE err = mMaster->makeComponentInstance(
             name, &OMXNodeInstance::kCallbacks,
-            instance, &handle);
+            instance.get(), &handle);
 
     if (err != OMX_ErrorNone) {
         ALOGE("FAILED to allocate omx component '%s' err=%s(%#x)", name, asString(err), err);
 
-        instance->onGetHandleFailed();
-
         return StatusFromOMXError(err);
     }
-
-    *node = makeNodeID_l(instance);
-    mDispatchers.add(*node, new CallbackDispatcher(instance));
-
-    instance->setHandle(*node, handle);
+    instance->setHandle(handle);
+    std::vector<AString> quirkVector;
+    if (mParser.getQuirks(name, &quirkVector) == OK) {
+        uint32_t quirks = 0;
+        for (const AString quirk : quirkVector) {
+            if (quirk == "requires-allocate-on-input-ports") {
+                quirks |= kRequiresAllocateBufferOnInputPorts;
+            }
+            if (quirk == "requires-allocate-on-output-ports") {
+                quirks |= kRequiresAllocateBufferOnOutputPorts;
+            }
+        }
+        instance->setQuirks(quirks);
+    }
 
     mLiveNodes.add(IInterface::asBinder(observer), instance);
     IInterface::asBinder(observer)->linkToDeath(this);
 
+    *omxNode = instance;
+
     return OK;
 }
 
-status_t OMX::freeNode(node_id node) {
-    OMXNodeInstance *instance = findInstance(node);
-
+status_t OMX::freeNode(const sp<OMXNodeInstance> &instance) {
     if (instance == NULL) {
         return OK;
     }
@@ -294,473 +151,44 @@
         if (index < 0) {
             // This could conceivably happen if the observer dies at roughly the
             // same time that a client attempts to free the node explicitly.
-            return OK;
+
+            // NOTE: it's guaranteed that this method is called at most once per
+            //       instance.
+            ALOGV("freeNode: instance already removed from book-keeping.");
+        } else {
+            mLiveNodes.removeItemsAt(index);
+            IInterface::asBinder(instance->observer())->unlinkToDeath(this);
         }
-        mLiveNodes.removeItemsAt(index);
     }
 
-    IInterface::asBinder(instance->observer())->unlinkToDeath(this);
+    CHECK(instance->handle() != NULL);
+    OMX_ERRORTYPE err = mMaster->destroyComponentInstance(
+            static_cast<OMX_COMPONENTTYPE *>(instance->handle()));
+    ALOGV("freeNode: handle destroyed: %p", instance->handle());
 
-    status_t err = instance->freeNode(mMaster);
-
-    {
-        Mutex::Autolock autoLock(mLock);
-        ssize_t index = mDispatchers.indexOfKey(node);
-        CHECK(index >= 0);
-        mDispatchers.removeItemsAt(index);
-    }
-
-    return err;
-}
-
-status_t OMX::sendCommand(
-        node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->sendCommand(cmd, param);
-}
-
-status_t OMX::getParameter(
-        node_id node, OMX_INDEXTYPE index,
-        void *params, size_t size) {
-    ALOGV("getParameter(%u %#x %p %zd)", node, index, params, size);
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->getParameter(
-            index, params, size);
-}
-
-status_t OMX::setParameter(
-        node_id node, OMX_INDEXTYPE index,
-        const void *params, size_t size) {
-    ALOGV("setParameter(%u %#x %p %zd)", node, index, params, size);
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->setParameter(
-            index, params, size);
-}
-
-status_t OMX::getConfig(
-        node_id node, OMX_INDEXTYPE index,
-        void *params, size_t size) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->getConfig(
-            index, params, size);
-}
-
-status_t OMX::setConfig(
-        node_id node, OMX_INDEXTYPE index,
-        const void *params, size_t size) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->setConfig(
-            index, params, size);
-}
-
-status_t OMX::getState(
-        node_id node, OMX_STATETYPE* state) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->getState(
-            state);
-}
-
-status_t OMX::enableNativeBuffers(
-        node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->enableNativeBuffers(port_index, graphic, enable);
-}
-
-status_t OMX::getGraphicBufferUsage(
-        node_id node, OMX_U32 port_index, OMX_U32* usage) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->getGraphicBufferUsage(port_index, usage);
-}
-
-status_t OMX::storeMetaDataInBuffers(
-        node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->storeMetaDataInBuffers(port_index, enable, type);
-}
-
-status_t OMX::prepareForAdaptivePlayback(
-        node_id node, OMX_U32 portIndex, OMX_BOOL enable,
-        OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->prepareForAdaptivePlayback(
-            portIndex, enable, maxFrameWidth, maxFrameHeight);
-}
-
-status_t OMX::configureVideoTunnelMode(
-        node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
-        OMX_U32 audioHwSync, native_handle_t **sidebandHandle) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->configureVideoTunnelMode(
-            portIndex, tunneled, audioHwSync, sidebandHandle);
-}
-
-status_t OMX::useBuffer(
-        node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-        buffer_id *buffer, OMX_U32 allottedSize) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->useBuffer(
-            port_index, params, buffer, allottedSize);
-}
-
-status_t OMX::useGraphicBuffer(
-        node_id node, OMX_U32 port_index,
-        const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->useGraphicBuffer(
-            port_index, graphicBuffer, buffer);
-}
-
-status_t OMX::updateGraphicBufferInMeta(
-        node_id node, OMX_U32 port_index,
-        const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->updateGraphicBufferInMeta(
-            port_index, graphicBuffer, buffer);
-}
-
-status_t OMX::updateNativeHandleInMeta(
-        node_id node, OMX_U32 port_index,
-        const sp<NativeHandle> &nativeHandle, buffer_id buffer) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->updateNativeHandleInMeta(
-            port_index, nativeHandle, buffer);
+    return StatusFromOMXError(err);
 }
 
 status_t OMX::createInputSurface(
-        node_id node, OMX_U32 port_index, android_dataspace dataSpace,
-        sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->createInputSurface(
-            port_index, dataSpace, bufferProducer, type);
-}
-
-status_t OMX::createPersistentInputSurface(
         sp<IGraphicBufferProducer> *bufferProducer,
-        sp<IGraphicBufferConsumer> *bufferConsumer) {
-    return OMXNodeInstance::createPersistentInputSurface(
-            bufferProducer, bufferConsumer);
-}
-
-status_t OMX::setInputSurface(
-        node_id node, OMX_U32 port_index,
-        const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
+        sp<IGraphicBufferSource> *bufferSource) {
+    if (bufferProducer == NULL || bufferSource == NULL) {
+        ALOGE("b/25884056");
+        return BAD_VALUE;
     }
 
-    return instance->setInputSurface(port_index, bufferConsumer, type);
-}
-
-
-status_t OMX::signalEndOfInputStream(node_id node) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
+    sp<GraphicBufferSource> graphicBufferSource = new GraphicBufferSource();
+    status_t err = graphicBufferSource->initCheck();
+    if (err != OK) {
+        ALOGE("Failed to create persistent input surface: %s (%d)",
+                strerror(-err), err);
+        return err;
     }
 
-    return instance->signalEndOfInputStream();
-}
+    *bufferProducer = graphicBufferSource->getIGraphicBufferProducer();
+    *bufferSource = new BWGraphicBufferSource(graphicBufferSource);
 
-status_t OMX::allocateSecureBuffer(
-        node_id node, OMX_U32 port_index, size_t size,
-        buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->allocateSecureBuffer(
-            port_index, size, buffer, buffer_data, native_handle);
-}
-
-status_t OMX::allocateBufferWithBackup(
-        node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-        buffer_id *buffer, OMX_U32 allottedSize) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->allocateBufferWithBackup(
-            port_index, params, buffer, allottedSize);
-}
-
-status_t OMX::freeBuffer(node_id node, OMX_U32 port_index, buffer_id buffer) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->freeBuffer(
-            port_index, buffer);
-}
-
-status_t OMX::fillBuffer(node_id node, buffer_id buffer, int fenceFd) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->fillBuffer(buffer, fenceFd);
-}
-
-status_t OMX::emptyBuffer(
-        node_id node,
-        buffer_id buffer,
-        OMX_U32 range_offset, OMX_U32 range_length,
-        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->emptyBuffer(
-            buffer, range_offset, range_length, flags, timestamp, fenceFd);
-}
-
-status_t OMX::getExtensionIndex(
-        node_id node,
-        const char *parameter_name,
-        OMX_INDEXTYPE *index) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->getExtensionIndex(
-            parameter_name, index);
-}
-
-status_t OMX::setInternalOption(
-        node_id node,
-        OMX_U32 port_index,
-        InternalOptionType type,
-        const void *data,
-        size_t size) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->setInternalOption(port_index, type, data, size);
-}
-
-OMX_ERRORTYPE OMX::OnEvent(
-        node_id node,
-        OMX_IN OMX_EVENTTYPE eEvent,
-        OMX_IN OMX_U32 nData1,
-        OMX_IN OMX_U32 nData2,
-        OMX_IN OMX_PTR pEventData) {
-    ALOGV("OnEvent(%d, %" PRIu32", %" PRIu32 ")", eEvent, nData1, nData2);
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return OMX_ErrorComponentNotFound;
-    }
-
-    // Forward to OMXNodeInstance.
-    instance->onEvent(eEvent, nData1, nData2);
-
-    sp<OMX::CallbackDispatcher> dispatcher = findDispatcher(node);
-
-    // output rendered events are not processed as regular events until they hit the observer
-    if (eEvent == OMX_EventOutputRendered) {
-        if (pEventData == NULL) {
-            return OMX_ErrorBadParameter;
-        }
-
-        // process data from array
-        OMX_VIDEO_RENDEREVENTTYPE *renderData = (OMX_VIDEO_RENDEREVENTTYPE *)pEventData;
-        for (size_t i = 0; i < nData1; ++i) {
-            omx_message msg;
-            msg.type = omx_message::FRAME_RENDERED;
-            msg.node = node;
-            msg.fenceFd = -1;
-            msg.u.render_data.timestamp = renderData[i].nMediaTimeUs;
-            msg.u.render_data.nanoTime = renderData[i].nSystemTimeNs;
-
-            dispatcher->post(msg, false /* realTime */);
-        }
-        return OMX_ErrorNone;
-    }
-
-    omx_message msg;
-    msg.type = omx_message::EVENT;
-    msg.node = node;
-    msg.fenceFd = -1;
-    msg.u.event_data.event = eEvent;
-    msg.u.event_data.data1 = nData1;
-    msg.u.event_data.data2 = nData2;
-
-    dispatcher->post(msg, true /* realTime */);
-
-    return OMX_ErrorNone;
-}
-
-OMX_ERRORTYPE OMX::OnEmptyBufferDone(
-        node_id node, buffer_id buffer, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer, int fenceFd) {
-    ALOGV("OnEmptyBufferDone buffer=%p", pBuffer);
-
-    omx_message msg;
-    msg.type = omx_message::EMPTY_BUFFER_DONE;
-    msg.node = node;
-    msg.fenceFd = fenceFd;
-    msg.u.buffer_data.buffer = buffer;
-
-    findDispatcher(node)->post(msg);
-
-    return OMX_ErrorNone;
-}
-
-OMX_ERRORTYPE OMX::OnFillBufferDone(
-        node_id node, buffer_id buffer, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer, int fenceFd) {
-    ALOGV("OnFillBufferDone buffer=%p", pBuffer);
-
-    omx_message msg;
-    msg.type = omx_message::FILL_BUFFER_DONE;
-    msg.node = node;
-    msg.fenceFd = fenceFd;
-    msg.u.extended_buffer_data.buffer = buffer;
-    msg.u.extended_buffer_data.range_offset = pBuffer->nOffset;
-    msg.u.extended_buffer_data.range_length = pBuffer->nFilledLen;
-    msg.u.extended_buffer_data.flags = pBuffer->nFlags;
-    msg.u.extended_buffer_data.timestamp = pBuffer->nTimeStamp;
-
-    findDispatcher(node)->post(msg);
-
-    return OMX_ErrorNone;
-}
-
-OMX::node_id OMX::makeNodeID_l(OMXNodeInstance *instance) {
-    // mLock is already held.
-
-    node_id prefix = node_id(getpid() << 16);
-    node_id node = 0;
-    do  {
-        if (++mNodeCounter >= kMaxNodeInstances) {
-            mNodeCounter = 0; // OK to use because we're combining with the pid
-        }
-        node = node_id(prefix | mNodeCounter);
-    } while (mNodeIDToInstance.indexOfKey(node) >= 0);
-    mNodeIDToInstance.add(node, instance);
-
-    return node;
-}
-
-OMXNodeInstance *OMX::findInstance(node_id node) {
-    Mutex::Autolock autoLock(mLock);
-
-    ssize_t index = mNodeIDToInstance.indexOfKey(node);
-
-    return index < 0 ? NULL : mNodeIDToInstance.valueAt(index);
-}
-
-sp<OMX::CallbackDispatcher> OMX::findDispatcher(node_id node) {
-    Mutex::Autolock autoLock(mLock);
-
-    ssize_t index = mDispatchers.indexOfKey(node);
-
-    return index < 0 ? NULL : mDispatchers.valueAt(index);
-}
-
-void OMX::invalidateNodeID(node_id node) {
-    Mutex::Autolock autoLock(mLock);
-    invalidateNodeID_l(node);
-}
-
-void OMX::invalidateNodeID_l(node_id node) {
-    // mLock is held.
-    mNodeIDToInstance.removeItem(node);
+    return OK;
 }
 
 }  // namespace android
diff --git a/media/libstagefright/omx/OMXMaster.cpp b/media/libstagefright/omx/OMXMaster.cpp
index 6132a2c..ac9b0c3 100644
--- a/media/libstagefright/omx/OMXMaster.cpp
+++ b/media/libstagefright/omx/OMXMaster.cpp
@@ -32,26 +32,23 @@
 OMXMaster::OMXMaster()
     : mVendorLibHandle(NULL) {
 
-    mProcessName[0] = 0;
-    if (mProcessName[0] == 0) {
-        pid_t pid = getpid();
-        char filename[20];
-        snprintf(filename, sizeof(filename), "/proc/%d/comm", pid);
-        int fd = open(filename, O_RDONLY);
-        if (fd < 0) {
-            ALOGW("couldn't determine process name");
-            sprintf(mProcessName, "<unknown>");
-        } else {
-            ssize_t len = read(fd, mProcessName, sizeof(mProcessName));
-            if (len < 2) {
-                ALOGW("couldn't determine process name");
-                sprintf(mProcessName, "<unknown>");
-            } else {
-                // the name is newline terminated, so erase the newline
-                mProcessName[len - 1] = 0;
-            }
-            close(fd);
-        }
+    pid_t pid = getpid();
+    char filename[20];
+    snprintf(filename, sizeof(filename), "/proc/%d/comm", pid);
+    int fd = open(filename, O_RDONLY);
+    if (fd < 0) {
+      ALOGW("couldn't determine process name");
+      strlcpy(mProcessName, "<unknown>", sizeof(mProcessName));
+    } else {
+      ssize_t len = read(fd, mProcessName, sizeof(mProcessName));
+      if (len < 2) {
+        ALOGW("couldn't determine process name");
+        strlcpy(mProcessName, "<unknown>", sizeof(mProcessName));
+      } else {
+        // the name is newline terminated, so erase the newline
+        mProcessName[len - 1] = 0;
+      }
+      close(fd);
     }
 
     addVendorPlugin();
diff --git a/media/libstagefright/omx/OMXNodeInstance.cpp b/media/libstagefright/omx/OMXNodeInstance.cpp
index 7bd66b1..34ecb22 100644
--- a/media/libstagefright/omx/OMXNodeInstance.cpp
+++ b/media/libstagefright/omx/OMXNodeInstance.cpp
@@ -23,10 +23,11 @@
 #include "../include/OMXNodeInstance.h"
 #include "OMXMaster.h"
 #include "OMXUtils.h"
-#include "GraphicBufferSource.h"
+#include <android/IOMXBufferSource.h>
 
 #include <OMX_Component.h>
 #include <OMX_IndexExt.h>
+#include <OMX_VideoExt.h>
 #include <OMX_AsString.h>
 
 #include <binder/IMemory.h>
@@ -35,26 +36,31 @@
 #include <HardwareAPI.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/ColorUtils.h>
 #include <media/stagefright/MediaErrors.h>
 #include <utils/misc.h>
 #include <utils/NativeHandle.h>
+#include <media/OMXBuffer.h>
+#include <media/vndk/xmlparser/1.0/MediaCodecsXmlParser.h>
+
+#include <hidlmemory/mapping.h>
 
 static const OMX_U32 kPortIndexInput = 0;
 static const OMX_U32 kPortIndexOutput = 1;
 
-#define CLOGW(fmt, ...) ALOGW("[%x:%s] " fmt, mNodeID, mName, ##__VA_ARGS__)
+#define CLOGW(fmt, ...) ALOGW("[%p:%s] " fmt, mHandle, mName, ##__VA_ARGS__)
 
 #define CLOG_ERROR_IF(cond, fn, err, fmt, ...) \
-    ALOGE_IF(cond, #fn "(%x:%s, " fmt ") ERROR: %s(%#x)", \
-    mNodeID, mName, ##__VA_ARGS__, asString(err), err)
+    ALOGE_IF(cond, #fn "(%p:%s, " fmt ") ERROR: %s(%#x)", \
+    mHandle, mName, ##__VA_ARGS__, asString(err), err)
 #define CLOG_ERROR(fn, err, fmt, ...) CLOG_ERROR_IF(true, fn, err, fmt, ##__VA_ARGS__)
 #define CLOG_IF_ERROR(fn, err, fmt, ...) \
     CLOG_ERROR_IF((err) != OMX_ErrorNone, fn, err, fmt, ##__VA_ARGS__)
 
 #define CLOGI_(level, fn, fmt, ...) \
-    ALOGI_IF(DEBUG >= (level), #fn "(%x:%s, " fmt ")", mNodeID, mName, ##__VA_ARGS__)
+    ALOGI_IF(DEBUG >= (level), #fn "(%p:%s, " fmt ")", mHandle, mName, ##__VA_ARGS__)
 #define CLOGD_(level, fn, fmt, ...) \
-    ALOGD_IF(DEBUG >= (level), #fn "(%x:%s, " fmt ")", mNodeID, mName, ##__VA_ARGS__)
+    ALOGD_IF(DEBUG >= (level), #fn "(%p:%s, " fmt ")", mHandle, mName, ##__VA_ARGS__)
 
 #define CLOG_LIFE(fn, fmt, ...)     CLOGI_(ADebug::kDebugLifeCycle,     fn, fmt, ##__VA_ARGS__)
 #define CLOG_STATE(fn, fmt, ...)    CLOGI_(ADebug::kDebugState,         fn, fmt, ##__VA_ARGS__)
@@ -62,7 +68,7 @@
 #define CLOG_INTERNAL(fn, fmt, ...) CLOGD_(ADebug::kDebugInternalState, fn, fmt, ##__VA_ARGS__)
 
 #define CLOG_DEBUG_IF(cond, fn, fmt, ...) \
-    ALOGD_IF(cond, #fn "(%x, " fmt ")", mNodeID, ##__VA_ARGS__)
+    ALOGD_IF(cond, #fn "(%p, " fmt ")", mHandle, ##__VA_ARGS__)
 
 #define CLOG_BUFFER(fn, fmt, ...) \
     CLOG_DEBUG_IF(DEBUG >= ADebug::kDebugAll, fn, fmt, ##__VA_ARGS__)
@@ -93,25 +99,25 @@
 namespace android {
 
 struct BufferMeta {
-    BufferMeta(
-            const sp<IMemory> &mem, OMX_U32 portIndex, bool copyToOmx,
-            bool copyFromOmx, OMX_U8 *backup)
+    explicit BufferMeta(
+            const sp<IMemory> &mem, const sp<IHidlMemory> &hidlMemory,
+            OMX_U32 portIndex, bool copy, OMX_U8 *backup)
         : mMem(mem),
-          mCopyFromOmx(copyFromOmx),
-          mCopyToOmx(copyToOmx),
+          mHidlMemory(hidlMemory),
+          mCopyFromOmx(portIndex == kPortIndexOutput && copy),
+          mCopyToOmx(portIndex == kPortIndexInput && copy),
           mPortIndex(portIndex),
           mBackup(backup) {
     }
 
-    BufferMeta(size_t size, OMX_U32 portIndex)
-        : mSize(size),
-          mCopyFromOmx(false),
+    explicit BufferMeta(OMX_U32 portIndex)
+        : mCopyFromOmx(false),
           mCopyToOmx(false),
           mPortIndex(portIndex),
           mBackup(NULL) {
     }
 
-    BufferMeta(const sp<GraphicBuffer> &graphicBuffer, OMX_U32 portIndex)
+    explicit BufferMeta(const sp<GraphicBuffer> &graphicBuffer, OMX_U32 portIndex)
         : mGraphicBuffer(graphicBuffer),
           mCopyFromOmx(false),
           mCopyToOmx(false),
@@ -119,15 +125,21 @@
           mBackup(NULL) {
     }
 
+    OMX_U8 *getPointer() {
+        return mMem.get() ? static_cast<OMX_U8*>(mMem->pointer()) :
+                mHidlMemory.get() ? static_cast<OMX_U8*>(
+                static_cast<void*>(mHidlMemory->getPointer())) : nullptr;
+    }
+
     void CopyFromOMX(const OMX_BUFFERHEADERTYPE *header) {
         if (!mCopyFromOmx) {
             return;
         }
 
         // check component returns proper range
-        sp<ABuffer> codec = getBuffer(header, false /* backup */, true /* limit */);
+        sp<ABuffer> codec = getBuffer(header, true /* limit */);
 
-        memcpy((OMX_U8 *)mMem->pointer() + header->nOffset, codec->data(), codec->size());
+        memcpy(getPointer() + header->nOffset, codec->data(), codec->size());
     }
 
     void CopyToOMX(const OMX_BUFFERHEADERTYPE *header) {
@@ -136,18 +148,13 @@
         }
 
         memcpy(header->pBuffer + header->nOffset,
-                (const OMX_U8 *)mMem->pointer() + header->nOffset,
+                getPointer() + header->nOffset,
                 header->nFilledLen);
     }
 
-    // return either the codec or the backup buffer
-    sp<ABuffer> getBuffer(const OMX_BUFFERHEADERTYPE *header, bool backup, bool limit) {
-        sp<ABuffer> buf;
-        if (backup && mMem != NULL) {
-            buf = new ABuffer(mMem->pointer(), mMem->size());
-        } else {
-            buf = new ABuffer(header->pBuffer, header->nAllocLen);
-        }
+    // return the codec buffer
+    sp<ABuffer> getBuffer(const OMX_BUFFERHEADERTYPE *header, bool limit) {
+        sp<ABuffer> buf = new ABuffer(header->pBuffer, header->nAllocLen);
         if (limit) {
             if (header->nOffset + header->nFilledLen > header->nOffset
                     && header->nOffset + header->nFilledLen <= header->nAllocLen) {
@@ -179,7 +186,7 @@
     sp<GraphicBuffer> mGraphicBuffer;
     sp<NativeHandle> mNativeHandle;
     sp<IMemory> mMem;
-    size_t mSize;
+    sp<IHidlMemory> mHidlMemory;
     bool mCopyFromOmx;
     bool mCopyToOmx;
     OMX_U32 mPortIndex;
@@ -203,16 +210,144 @@
     }
 }
 
-OMXNodeInstance::OMXNodeInstance(
-        OMX *owner, const sp<IOMXObserver> &observer, const char *name)
+////////////////////////////////////////////////////////////////////////////////
+
+// This provides the underlying Thread used by CallbackDispatcher.
+// Note that deriving CallbackDispatcher from Thread does not work.
+
+struct OMXNodeInstance::CallbackDispatcherThread : public Thread {
+    explicit CallbackDispatcherThread(CallbackDispatcher *dispatcher)
+        : mDispatcher(dispatcher) {
+    }
+
+private:
+    CallbackDispatcher *mDispatcher;
+
+    bool threadLoop();
+
+    CallbackDispatcherThread(const CallbackDispatcherThread &);
+    CallbackDispatcherThread &operator=(const CallbackDispatcherThread &);
+};
+
+////////////////////////////////////////////////////////////////////////////////
+
+struct OMXNodeInstance::CallbackDispatcher : public RefBase {
+    explicit CallbackDispatcher(const sp<OMXNodeInstance> &owner);
+
+    // Posts |msg| to the listener's queue. If |realTime| is true, the listener thread is notified
+    // that a new message is available on the queue. Otherwise, the message stays on the queue, but
+    // the listener is not notified of it. It will process this message when a subsequent message
+    // is posted with |realTime| set to true.
+    void post(const omx_message &msg, bool realTime = true);
+
+    bool loop();
+
+protected:
+    virtual ~CallbackDispatcher();
+
+private:
+    Mutex mLock;
+
+    sp<OMXNodeInstance> const mOwner;
+    bool mDone;
+    Condition mQueueChanged;
+    std::list<omx_message> mQueue;
+
+    sp<CallbackDispatcherThread> mThread;
+
+    void dispatch(std::list<omx_message> &messages);
+
+    CallbackDispatcher(const CallbackDispatcher &);
+    CallbackDispatcher &operator=(const CallbackDispatcher &);
+};
+
+OMXNodeInstance::CallbackDispatcher::CallbackDispatcher(const sp<OMXNodeInstance> &owner)
     : mOwner(owner),
-      mNodeID(0),
+      mDone(false) {
+    mThread = new CallbackDispatcherThread(this);
+    mThread->run("OMXCallbackDisp", ANDROID_PRIORITY_FOREGROUND);
+}
+
+OMXNodeInstance::CallbackDispatcher::~CallbackDispatcher() {
+    {
+        Mutex::Autolock autoLock(mLock);
+
+        mDone = true;
+        mQueueChanged.signal();
+    }
+
+    // A join on self can happen if the last ref to CallbackDispatcher
+    // is released within the CallbackDispatcherThread loop
+    status_t status = mThread->join();
+    if (status != WOULD_BLOCK) {
+        // Other than join to self, the only other error return codes are
+        // whatever readyToRun() returns, and we don't override that
+        CHECK_EQ(status, (status_t)NO_ERROR);
+    }
+}
+
+void OMXNodeInstance::CallbackDispatcher::post(const omx_message &msg, bool realTime) {
+    Mutex::Autolock autoLock(mLock);
+
+    mQueue.push_back(msg);
+    if (realTime) {
+        mQueueChanged.signal();
+    }
+}
+
+void OMXNodeInstance::CallbackDispatcher::dispatch(std::list<omx_message> &messages) {
+    if (mOwner == NULL) {
+        ALOGV("Would have dispatched a message to a node that's already gone.");
+        return;
+    }
+    mOwner->onMessages(messages);
+}
+
+bool OMXNodeInstance::CallbackDispatcher::loop() {
+    for (;;) {
+        std::list<omx_message> messages;
+
+        {
+            Mutex::Autolock autoLock(mLock);
+            while (!mDone && mQueue.empty()) {
+                mQueueChanged.wait(mLock);
+            }
+
+            if (mDone) {
+                break;
+            }
+
+            messages.swap(mQueue);
+        }
+
+        dispatch(messages);
+    }
+
+    return false;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+bool OMXNodeInstance::CallbackDispatcherThread::threadLoop() {
+    return mDispatcher->loop();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+OMXNodeInstance::OMXNodeInstance(
+        OmxNodeOwner *owner, const sp<IOMXObserver> &observer, const char *name)
+    : mOwner(owner),
       mHandle(NULL),
       mObserver(observer),
       mDying(false),
       mSailed(false),
       mQueriedProhibitedExtensions(false),
-      mBufferIDCount(0)
+      mQuirks(0),
+      mBufferIDCount(0),
+      mRestorePtsFailed(false),
+      mMaxTimestampGapUs(-1ll),
+      mPrevOriginalTimeUs(-1ll),
+      mPrevModifiedTimeUs(-1ll)
 {
     mName = ADebug::GetDebugName(name);
     DEBUG = ADebug::GetDebugLevelFromProperty(name, "debug.stagefright.omx-debug");
@@ -224,11 +359,14 @@
     mDebugLevelBumpPendingBuffers[1] = 0;
     mMetadataType[0] = kMetadataBufferTypeInvalid;
     mMetadataType[1] = kMetadataBufferTypeInvalid;
+    mPortMode[0] = IOMX::kPortModePresetByteBuffer;
+    mPortMode[1] = IOMX::kPortModePresetByteBuffer;
     mSecureBufferType[0] = kSecureBufferTypeUnknown;
     mSecureBufferType[1] = kSecureBufferTypeUnknown;
     mGraphicBufferEnabled[0] = false;
     mGraphicBufferEnabled[1] = false;
     mIsSecure = AString(name).endsWith(".secure");
+    mLegacyAdaptiveExperiment = ADebug::isExperimentEnabled("legacy-adaptive");
 }
 
 OMXNodeInstance::~OMXNodeInstance() {
@@ -236,46 +374,38 @@
     CHECK(mHandle == NULL);
 }
 
-void OMXNodeInstance::setHandle(OMX::node_id node_id, OMX_HANDLETYPE handle) {
-    mNodeID = node_id;
+void OMXNodeInstance::setHandle(OMX_HANDLETYPE handle) {
     CLOG_LIFE(allocateNode, "handle=%p", handle);
     CHECK(mHandle == NULL);
     mHandle = handle;
+    if (handle != NULL) {
+        mDispatcher = new CallbackDispatcher(this);
+    }
 }
 
-sp<GraphicBufferSource> OMXNodeInstance::getGraphicBufferSource() {
-    Mutex::Autolock autoLock(mGraphicBufferSourceLock);
-    return mGraphicBufferSource;
+sp<IOMXBufferSource> OMXNodeInstance::getBufferSource() {
+    Mutex::Autolock autoLock(mOMXBufferSourceLock);
+    return mOMXBufferSource;
 }
 
-void OMXNodeInstance::setGraphicBufferSource(
-        const sp<GraphicBufferSource>& bufferSource) {
-    Mutex::Autolock autoLock(mGraphicBufferSourceLock);
-    CLOG_INTERNAL(setGraphicBufferSource, "%p", bufferSource.get());
-    mGraphicBufferSource = bufferSource;
+void OMXNodeInstance::setBufferSource(const sp<IOMXBufferSource>& bufferSource) {
+    Mutex::Autolock autoLock(mOMXBufferSourceLock);
+    CLOG_INTERNAL(setBufferSource, "%p", bufferSource.get());
+    mOMXBufferSource = bufferSource;
 }
 
-OMX *OMXNodeInstance::owner() {
-    return mOwner;
+OMX_HANDLETYPE OMXNodeInstance::handle() {
+    return mHandle;
 }
 
 sp<IOMXObserver> OMXNodeInstance::observer() {
     return mObserver;
 }
 
-OMX::node_id OMXNodeInstance::nodeID() {
-    return mNodeID;
-}
-
-status_t OMXNodeInstance::freeNode(OMXMaster *master) {
+status_t OMXNodeInstance::freeNode() {
     CLOG_LIFE(freeNode, "handle=%p", mHandle);
     static int32_t kMaxNumIterations = 10;
 
-    // exit if we have already freed the node
-    if (mHandle == NULL) {
-        return OK;
-    }
-
     // Transition the node from its current state all the way down
     // to "Loaded".
     // This ensures that all active buffers are properly freed even
@@ -285,7 +415,13 @@
     // The code below may trigger some more events to be dispatched
     // by the OMX component - we want to ignore them as our client
     // does not expect them.
-    mDying = true;
+    bool expected = false;
+    if (!mDying.compare_exchange_strong(expected, true)) {
+        // exit if we have already freed the node or doing so right now.
+        // NOTE: this ensures that the block below executes at most once.
+        ALOGV("Already dying");
+        return OK;
+    }
 
     OMX_STATETYPE state;
     CHECK_EQ(OMX_GetState(mHandle, &state), OMX_ErrorNone);
@@ -355,42 +491,35 @@
 
     Mutex::Autolock _l(mLock);
 
-    ALOGV("[%x:%s] calling destroyComponentInstance", mNodeID, mName);
-    OMX_ERRORTYPE err = master->destroyComponentInstance(
-            static_cast<OMX_COMPONENTTYPE *>(mHandle));
+    status_t err = mOwner->freeNode(this);
+
+    mDispatcher.clear();
+    mOMXBufferSource.clear();
 
     mHandle = NULL;
     CLOG_IF_ERROR(freeNode, err, "");
     free(mName);
     mName = NULL;
 
-    mOwner->invalidateNodeID(mNodeID);
-    mNodeID = 0;
-
     ALOGV("OMXNodeInstance going away.");
-    delete this;
 
-    return StatusFromOMXError(err);
+    return err;
 }
 
 status_t OMXNodeInstance::sendCommand(
         OMX_COMMANDTYPE cmd, OMX_S32 param) {
-    if (cmd == OMX_CommandStateSet) {
-        // There are no configurations past first StateSet command.
-        mSailed = true;
-    }
-    const sp<GraphicBufferSource> bufferSource(getGraphicBufferSource());
+    const sp<IOMXBufferSource> bufferSource(getBufferSource());
     if (bufferSource != NULL && cmd == OMX_CommandStateSet) {
         if (param == OMX_StateIdle) {
             // Initiating transition from Executing -> Idle
             // ACodec is waiting for all buffers to be returned, do NOT
             // submit any more buffers to the codec.
-            bufferSource->omxIdle();
+            bufferSource->onOmxIdle();
         } else if (param == OMX_StateLoaded) {
             // Initiating transition from Idle/Executing -> Loaded
             // Buffers are about to be freed.
-            bufferSource->omxLoaded();
-            setGraphicBufferSource(NULL);
+            bufferSource->onOmxLoaded();
+            setBufferSource(NULL);
         }
 
         // fall through
@@ -398,6 +527,11 @@
 
     Mutex::Autolock autoLock(mLock);
 
+    if (cmd == OMX_CommandStateSet) {
+        // There are no configurations past first StateSet command.
+        mSailed = true;
+    }
+
     // bump internal-state debug level for 2 input and output frames past a command
     {
         Mutex::Autolock _l(mDebugLock);
@@ -426,18 +560,17 @@
         "OMX.google.android.index.getAndroidNativeBufferUsage",
     };
 
-    if ((index > OMX_IndexComponentStartUnused && index <= OMX_IndexParamStandardComponentRole)
-            || (index > OMX_IndexPortStartUnused && index <= OMX_IndexParamCompBufferSupplier)
-            || (index > OMX_IndexAudioStartUnused && index <= OMX_IndexConfigAudioChannelVolume)
-            || (index > OMX_IndexVideoStartUnused && index <= OMX_IndexConfigVideoNalSize)
-            || (index > OMX_IndexCommonStartUnused
-                    && index <= OMX_IndexConfigCommonTransitionEffect)
+    if ((index > OMX_IndexComponentStartUnused && index < OMX_IndexComponentEndUnused)
+            || (index > OMX_IndexPortStartUnused && index < OMX_IndexPortEndUnused)
+            || (index > OMX_IndexAudioStartUnused && index < OMX_IndexAudioEndUnused)
+            || (index > OMX_IndexVideoStartUnused && index < OMX_IndexVideoEndUnused)
+            || (index > OMX_IndexCommonStartUnused && index < OMX_IndexCommonEndUnused)
             || (index > (OMX_INDEXTYPE)OMX_IndexExtAudioStartUnused
-                    && index <= (OMX_INDEXTYPE)OMX_IndexParamAudioProfileQuerySupported)
+                    && index < (OMX_INDEXTYPE)OMX_IndexExtAudioEndUnused)
             || (index > (OMX_INDEXTYPE)OMX_IndexExtVideoStartUnused
-                    && index <= (OMX_INDEXTYPE)OMX_IndexConfigAndroidVideoTemporalLayering)
+                    && index < (OMX_INDEXTYPE)OMX_IndexExtVideoEndUnused)
             || (index > (OMX_INDEXTYPE)OMX_IndexExtOtherStartUnused
-                    && index <= (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits)) {
+                    && index < (OMX_INDEXTYPE)OMX_IndexExtOtherEndUnused)) {
         return false;
     }
 
@@ -478,6 +611,10 @@
     OMX_INDEXEXTTYPE extIndex = (OMX_INDEXEXTTYPE)index;
     CLOG_CONFIG(setParameter, "%s(%#x), %zu@%p)", asString(extIndex), index, size, params);
 
+    if (extIndex == OMX_IndexParamMaxFrameDurationForBitrateControl) {
+        return setMaxPtsGapUs(params, size);
+    }
+
     if (isProhibitedIndex_l(index)) {
         android_errorWriteLog(0x534e4554, "29422020");
         return BAD_INDEX;
@@ -524,15 +661,114 @@
     return StatusFromOMXError(err);
 }
 
-status_t OMXNodeInstance::getState(OMX_STATETYPE* state) {
+status_t OMXNodeInstance::setPortMode(OMX_U32 portIndex, IOMX::PortMode mode) {
     Mutex::Autolock autoLock(mLock);
 
-    OMX_ERRORTYPE err = OMX_GetState(mHandle, state);
-    CLOG_IF_ERROR(getState, err, "");
-    return StatusFromOMXError(err);
+    if (portIndex >= NELEM(mPortMode)) {
+        ALOGE("b/31385713, portIndex(%u)", portIndex);
+        android_errorWriteLog(0x534e4554, "31385713");
+        return BAD_VALUE;
+    }
+
+    CLOG_CONFIG(setPortMode, "%s(%d), port %d", asString(mode), mode, portIndex);
+
+    switch (mode) {
+    case IOMX::kPortModeDynamicANWBuffer:
+    {
+        if (portIndex == kPortIndexOutput) {
+            if (mLegacyAdaptiveExperiment) {
+                CLOG_INTERNAL(setPortMode, "Legacy adaptive experiment: "
+                        "not setting port mode to %s(%d) on output",
+                        asString(mode), mode);
+                return StatusFromOMXError(OMX_ErrorUnsupportedIndex);
+            }
+
+            status_t err = enableNativeBuffers_l(
+                    portIndex, OMX_TRUE /*graphic*/, OMX_TRUE);
+            if (err != OK) {
+                return err;
+            }
+        }
+        (void)enableNativeBuffers_l(portIndex, OMX_FALSE /*graphic*/, OMX_FALSE);
+        return storeMetaDataInBuffers_l(portIndex, OMX_TRUE, NULL);
+    }
+
+    case IOMX::kPortModeDynamicNativeHandle:
+    {
+        if (portIndex != kPortIndexInput) {
+            CLOG_ERROR(setPortMode, BAD_VALUE,
+                    "%s(%d) mode is only supported on input port", asString(mode), mode);
+            return BAD_VALUE;
+        }
+        (void)enableNativeBuffers_l(portIndex, OMX_TRUE /*graphic*/, OMX_FALSE);
+        (void)enableNativeBuffers_l(portIndex, OMX_FALSE /*graphic*/, OMX_FALSE);
+
+        MetadataBufferType metaType = kMetadataBufferTypeNativeHandleSource;
+        return storeMetaDataInBuffers_l(portIndex, OMX_TRUE, &metaType);
+    }
+
+    case IOMX::kPortModePresetSecureBuffer:
+    {
+        // Allow on both input and output.
+        (void)storeMetaDataInBuffers_l(portIndex, OMX_FALSE, NULL);
+        (void)enableNativeBuffers_l(portIndex, OMX_TRUE /*graphic*/, OMX_FALSE);
+        return enableNativeBuffers_l(portIndex, OMX_FALSE /*graphic*/, OMX_TRUE);
+    }
+
+    case IOMX::kPortModePresetANWBuffer:
+    {
+        if (portIndex != kPortIndexOutput) {
+            CLOG_ERROR(setPortMode, BAD_VALUE,
+                    "%s(%d) mode is only supported on output port", asString(mode), mode);
+            return BAD_VALUE;
+        }
+
+        // Check if we're simulating legacy mode with metadata mode,
+        // if so, enable metadata mode.
+        if (mLegacyAdaptiveExperiment) {
+            if (storeMetaDataInBuffers_l(portIndex, OMX_TRUE, NULL) == OK) {
+                CLOG_INTERNAL(setPortMode, "Legacy adaptive experiment: "
+                        "metdata mode enabled successfully");
+                return OK;
+            }
+
+            CLOG_INTERNAL(setPortMode, "Legacy adaptive experiment: "
+                    "unable to enable metadata mode on output");
+
+            mLegacyAdaptiveExperiment = false;
+        }
+
+        // Disable secure buffer and enable graphic buffer
+        (void)enableNativeBuffers_l(portIndex, OMX_FALSE /*graphic*/, OMX_FALSE);
+        status_t err = enableNativeBuffers_l(portIndex, OMX_TRUE /*graphic*/, OMX_TRUE);
+        if (err != OK) {
+            return err;
+        }
+
+        // Not running experiment, or metadata is not supported.
+        // Disable metadata mode and use legacy mode.
+        (void)storeMetaDataInBuffers_l(portIndex, OMX_FALSE, NULL);
+        return OK;
+    }
+
+    case IOMX::kPortModePresetByteBuffer:
+    {
+        // Disable secure buffer, native buffer and metadata.
+        (void)enableNativeBuffers_l(portIndex, OMX_TRUE /*graphic*/, OMX_FALSE);
+        (void)enableNativeBuffers_l(portIndex, OMX_FALSE /*graphic*/, OMX_FALSE);
+        (void)storeMetaDataInBuffers_l(portIndex, OMX_FALSE, NULL);
+        return OK;
+    }
+
+    default:
+        break;
+    }
+
+    CLOG_ERROR(setPortMode, BAD_VALUE, "invalid port mode %d", mode);
+    return BAD_VALUE;
 }
 
-status_t OMXNodeInstance::enableNativeBuffers(
+status_t OMXNodeInstance::enableNativeBuffers_l(
         OMX_U32 portIndex, OMX_BOOL graphic, OMX_BOOL enable) {
     if (portIndex >= NELEM(mSecureBufferType)) {
         ALOGE("b/31385713, portIndex(%u)", portIndex);
@@ -540,7 +776,6 @@
         return BAD_VALUE;
     }
 
-    Mutex::Autolock autoLock(mLock);
     CLOG_CONFIG(enableNativeBuffers, "%s:%u%s, %d", portString(portIndex), portIndex,
                 graphic ? ", graphic" : "", enable);
     OMX_STRING name = const_cast<OMX_STRING>(
@@ -578,9 +813,7 @@
         if (!graphic) {
             // Extension not supported, check for manual override with system property
             // This is a temporary workaround until partners support the OMX extension
-            char value[PROPERTY_VALUE_MAX];
-            if (property_get("media.mediadrmservice.enable", value, NULL)
-                && (!strcmp("1", value) || !strcasecmp("true", value))) {
+            if (property_get_bool("media.mediadrmservice.enable", false)) {
                 CLOG_CONFIG(enableNativeBuffers, "system property override: using native-handles");
                 mSecureBufferType[portIndex] = kSecureBufferTypeNativeHandle;
             } else if (mSecureBufferType[portIndex] == kSecureBufferTypeUnknown) {
@@ -623,13 +856,6 @@
     return OK;
 }
 
-status_t OMXNodeInstance::storeMetaDataInBuffers(
-        OMX_U32 portIndex, OMX_BOOL enable, MetadataBufferType *type) {
-    Mutex::Autolock autolock(mLock);
-    CLOG_CONFIG(storeMetaDataInBuffers, "%s:%u en:%d", portString(portIndex), portIndex, enable);
-    return storeMetaDataInBuffers_l(portIndex, enable, type);
-}
-
 status_t OMXNodeInstance::storeMetaDataInBuffers_l(
         OMX_U32 portIndex, OMX_BOOL enable, MetadataBufferType *type) {
     if (mSailed) {
@@ -679,6 +905,9 @@
                         ? kMetadataBufferTypeGrallocSource : requestedType;
             err = OMX_SetParameter(mHandle, index, &params);
         }
+        if (err == OMX_ErrorBadParameter) {
+            err = OMX_ErrorUnsupportedIndex;
+        }
     }
 
     // don't log loud error if component does not support metadata mode on the output
@@ -720,6 +949,12 @@
     CLOG_CONFIG(prepareForAdaptivePlayback, "%s:%u en=%d max=%ux%u",
             portString(portIndex), portIndex, enable, maxFrameWidth, maxFrameHeight);
 
+    if (mLegacyAdaptiveExperiment) {
+        CLOG_INTERNAL(prepareForAdaptivePlayback,
+                "Legacy adaptive experiment: reporting success");
+        return OK;
+    }
+
     OMX_INDEXTYPE index;
     OMX_STRING name = const_cast<OMX_STRING>(
             "OMX.google.android.index.prepareForAdaptivePlayback");
@@ -790,61 +1025,149 @@
 }
 
 status_t OMXNodeInstance::useBuffer(
-        OMX_U32 portIndex, const sp<IMemory> &params,
-        OMX::buffer_id *buffer, OMX_U32 allottedSize) {
-    if (params == NULL || buffer == NULL) {
+        OMX_U32 portIndex, const OMXBuffer &omxBuffer, IOMX::buffer_id *buffer) {
+    if (buffer == NULL) {
         ALOGE("b/25884056");
         return BAD_VALUE;
     }
 
-    Mutex::Autolock autoLock(mLock);
-    if (allottedSize > params->size() || portIndex >= NELEM(mNumPortBuffers)) {
+    if (portIndex >= NELEM(mNumPortBuffers)) {
         return BAD_VALUE;
     }
 
+    Mutex::Autolock autoLock(mLock);
     if (!mSailed) {
         ALOGE("b/35467458");
         android_errorWriteLog(0x534e4554, "35467458");
         return BAD_VALUE;
     }
 
-    if (mMetadataType[portIndex] == kMetadataBufferTypeInvalid
-            && mGraphicBufferEnabled[portIndex]) {
+    switch (omxBuffer.mBufferType) {
+        case OMXBuffer::kBufferTypePreset:
+            return useBuffer_l(portIndex, NULL, NULL, buffer);
+
+        case OMXBuffer::kBufferTypeSharedMem:
+            return useBuffer_l(portIndex, omxBuffer.mMem, NULL, buffer);
+
+        case OMXBuffer::kBufferTypeANWBuffer:
+            return useGraphicBuffer_l(portIndex, omxBuffer.mGraphicBuffer, buffer);
+
+        case OMXBuffer::kBufferTypeHidlMemory: {
+                sp<IHidlMemory> hidlMemory = mapMemory(omxBuffer.mHidlMemory);
+                return useBuffer_l(portIndex, NULL, hidlMemory, buffer);
+            }
+        default:
+            break;
+    }
+
+    return BAD_VALUE;
+}
+
+status_t OMXNodeInstance::useBuffer_l(
+        OMX_U32 portIndex, const sp<IMemory> &params,
+        const sp<IHidlMemory> &hParams, IOMX::buffer_id *buffer) {
+
+    BufferMeta *buffer_meta;
+    OMX_BUFFERHEADERTYPE *header;
+    OMX_ERRORTYPE err = OMX_ErrorNone;
+    bool isMetadata = mMetadataType[portIndex] != kMetadataBufferTypeInvalid;
+
+    if (!isMetadata && mGraphicBufferEnabled[portIndex]) {
         ALOGE("b/62948670");
         android_errorWriteLog(0x534e4554, "62948670");
         return INVALID_OPERATION;
     }
 
-    // metadata buffers are not connected cross process
-    // use a backup buffer instead of the actual buffer
-    BufferMeta *buffer_meta;
-    bool useBackup = mMetadataType[portIndex] != kMetadataBufferTypeInvalid;
-    OMX_U8 *data = static_cast<OMX_U8 *>(params->pointer());
-    // allocate backup buffer
-    if (useBackup) {
-        data = new (std::nothrow) OMX_U8[allottedSize];
-        if (data == NULL) {
-            return NO_MEMORY;
-        }
-        memset(data, 0, allottedSize);
-
-        buffer_meta = new BufferMeta(
-                params, portIndex, false /* copyToOmx */, false /* copyFromOmx */, data);
+    size_t paramsSize;
+    void* paramsPointer;
+    if (params != NULL && hParams != NULL) {
+        return BAD_VALUE;
+    }
+    if (params != NULL) {
+        paramsPointer = params->pointer();
+        paramsSize = params->size();
+    } else if (hParams != NULL) {
+        paramsPointer = hParams->getPointer();
+        paramsSize = hParams->getSize();
     } else {
-        buffer_meta = new BufferMeta(
-                params, portIndex, false /* copyToOmx */, false /* copyFromOmx */, NULL);
+        paramsPointer = nullptr;
     }
 
-    OMX_BUFFERHEADERTYPE *header;
+    OMX_U32 allottedSize;
+    if (isMetadata) {
+        if (mMetadataType[portIndex] == kMetadataBufferTypeGrallocSource) {
+            allottedSize = sizeof(VideoGrallocMetadata);
+        } else if (mMetadataType[portIndex] == kMetadataBufferTypeANWBuffer) {
+            allottedSize = sizeof(VideoNativeMetadata);
+        } else if (mMetadataType[portIndex] == kMetadataBufferTypeNativeHandleSource) {
+            allottedSize = sizeof(VideoNativeHandleMetadata);
+        } else {
+            return BAD_VALUE;
+        }
+    } else {
+        // NULL params is allowed only in metadata mode.
+        if (paramsPointer == nullptr) {
+            ALOGE("b/25884056");
+            return BAD_VALUE;
+        }
+        allottedSize = paramsSize;
+    }
 
-    OMX_ERRORTYPE err = OMX_UseBuffer(
-            mHandle, &header, portIndex, buffer_meta,
-            allottedSize, data);
+    bool isOutputGraphicMetadata = (portIndex == kPortIndexOutput) &&
+            (mMetadataType[portIndex] == kMetadataBufferTypeGrallocSource ||
+                    mMetadataType[portIndex] == kMetadataBufferTypeANWBuffer);
+
+    uint32_t requiresAllocateBufferBit =
+        (portIndex == kPortIndexInput)
+            ? kRequiresAllocateBufferOnInputPorts
+            : kRequiresAllocateBufferOnOutputPorts;
+
+    // we use useBuffer for output metadata regardless of quirks
+    if (!isOutputGraphicMetadata && (mQuirks & requiresAllocateBufferBit)) {
+        // metadata buffers are not connected cross process; only copy if not meta.
+        buffer_meta = new BufferMeta(
+                    params, hParams, portIndex, !isMetadata /* copy */, NULL /* data */);
+
+        err = OMX_AllocateBuffer(
+                mHandle, &header, portIndex, buffer_meta, allottedSize);
+
+        if (err != OMX_ErrorNone) {
+            CLOG_ERROR(allocateBuffer, err,
+                    SIMPLE_BUFFER(portIndex, (size_t)allottedSize,
+                            paramsPointer));
+        }
+    } else {
+        OMX_U8 *data = NULL;
+
+        // metadata buffers are not connected cross process
+        // use a backup buffer instead of the actual buffer
+        if (isMetadata) {
+            data = new (std::nothrow) OMX_U8[allottedSize];
+            if (data == NULL) {
+                return NO_MEMORY;
+            }
+            memset(data, 0, allottedSize);
+
+            buffer_meta = new BufferMeta(
+                    params, hParams, portIndex, false /* copy */, data);
+        } else {
+            data = static_cast<OMX_U8 *>(paramsPointer);
+
+            buffer_meta = new BufferMeta(
+                    params, hParams, portIndex, false /* copy */, NULL);
+        }
+
+        err = OMX_UseBuffer(
+                mHandle, &header, portIndex, buffer_meta,
+                allottedSize, data);
+
+        if (err != OMX_ErrorNone) {
+            CLOG_ERROR(useBuffer, err, SIMPLE_BUFFER(
+                    portIndex, (size_t)allottedSize, data));
+        }
+    }
 
     if (err != OMX_ErrorNone) {
-        CLOG_ERROR(useBuffer, err, SIMPLE_BUFFER(
-                portIndex, (size_t)allottedSize, data));
-
         delete buffer_meta;
         buffer_meta = NULL;
 
@@ -859,19 +1182,19 @@
 
     addActiveBuffer(portIndex, *buffer);
 
-    sp<GraphicBufferSource> bufferSource(getGraphicBufferSource());
+    sp<IOMXBufferSource> bufferSource(getBufferSource());
     if (bufferSource != NULL && portIndex == kPortIndexInput) {
-        bufferSource->addCodecBuffer(header);
+        bufferSource->onInputBufferAdded(*buffer);
     }
 
     CLOG_BUFFER(useBuffer, NEW_BUFFER_FMT(
-            *buffer, portIndex, "%u(%zu)@%p", allottedSize, params->size(), params->pointer()));
+            *buffer, portIndex, "%u(%zu)@%p", allottedSize, paramsSize, paramsPointer));
     return OK;
 }
 
 status_t OMXNodeInstance::useGraphicBuffer2_l(
         OMX_U32 portIndex, const sp<GraphicBuffer>& graphicBuffer,
-        OMX::buffer_id *buffer) {
+        IOMX::buffer_id *buffer) {
     if (graphicBuffer == NULL || buffer == NULL) {
         ALOGE("b/25884056");
         return BAD_VALUE;
@@ -925,16 +1248,22 @@
 // XXX: This function is here for backwards compatibility.  Once the OMX
 // implementations have been updated this can be removed and useGraphicBuffer2
 // can be renamed to useGraphicBuffer.
-status_t OMXNodeInstance::useGraphicBuffer(
+status_t OMXNodeInstance::useGraphicBuffer_l(
         OMX_U32 portIndex, const sp<GraphicBuffer>& graphicBuffer,
-        OMX::buffer_id *buffer) {
+        IOMX::buffer_id *buffer) {
     if (graphicBuffer == NULL || buffer == NULL) {
         ALOGE("b/25884056");
         return BAD_VALUE;
     }
-    Mutex::Autolock autoLock(mLock);
-    if (!mGraphicBufferEnabled[portIndex]
-            || mMetadataType[portIndex] != kMetadataBufferTypeInvalid) {
+
+    // First, see if we're in metadata mode. We could be running an experiment to simulate
+    // legacy behavior (preallocated buffers) on devices that supports meta.
+    if (mMetadataType[portIndex] != kMetadataBufferTypeInvalid) {
+        return useGraphicBufferWithMetadata_l(
+                portIndex, graphicBuffer, buffer);
+    }
+
+    if (!mGraphicBufferEnabled[portIndex]) {
         // Report error if this is not in graphic buffer mode.
         ALOGE("b/62948670");
         android_errorWriteLog(0x534e4554, "62948670");
@@ -996,9 +1325,32 @@
     return OK;
 }
 
+status_t OMXNodeInstance::useGraphicBufferWithMetadata_l(
+        OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
+        IOMX::buffer_id *buffer) {
+    if (portIndex != kPortIndexOutput) {
+        return BAD_VALUE;
+    }
+
+    if (mMetadataType[portIndex] != kMetadataBufferTypeGrallocSource &&
+            mMetadataType[portIndex] != kMetadataBufferTypeANWBuffer) {
+        return BAD_VALUE;
+    }
+
+    status_t err = useBuffer_l(portIndex, NULL, NULL, buffer);
+    if (err != OK) {
+        return err;
+    }
+
+    OMX_BUFFERHEADERTYPE *header = findBufferHeader(*buffer, portIndex);
+
+    return updateGraphicBufferInMeta_l(portIndex, graphicBuffer, *buffer, header);
+
+}
+
 status_t OMXNodeInstance::updateGraphicBufferInMeta_l(
         OMX_U32 portIndex, const sp<GraphicBuffer>& graphicBuffer,
-        OMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header, bool updateCodecBuffer) {
+        IOMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header) {
     // No need to check |graphicBuffer| since NULL is valid for it as below.
     if (header == NULL) {
         ALOGE("b/25884056");
@@ -1010,14 +1362,9 @@
     }
 
     BufferMeta *bufferMeta = (BufferMeta *)(header->pAppPrivate);
-    sp<ABuffer> data = bufferMeta->getBuffer(
-            header, !updateCodecBuffer /* backup */, false /* limit */);
+    sp<ABuffer> data = bufferMeta->getBuffer(header, false /* limit */);
     bufferMeta->setGraphicBuffer(graphicBuffer);
     MetadataBufferType metaType = mMetadataType[portIndex];
-    // we use gralloc source only in the codec buffers
-    if (metaType == kMetadataBufferTypeGrallocSource && !updateCodecBuffer) {
-        metaType = kMetadataBufferTypeANWBuffer;
-    }
     if (metaType == kMetadataBufferTypeGrallocSource
             && data->capacity() >= sizeof(VideoGrallocMetadata)) {
         VideoGrallocMetadata &metadata = *(VideoGrallocMetadata *)(data->data());
@@ -1041,21 +1388,9 @@
     return OK;
 }
 
-status_t OMXNodeInstance::updateGraphicBufferInMeta(
-        OMX_U32 portIndex, const sp<GraphicBuffer>& graphicBuffer,
-        OMX::buffer_id buffer) {
-    Mutex::Autolock autoLock(mLock);
-    OMX_BUFFERHEADERTYPE *header = findBufferHeader(buffer, portIndex);
-    // update backup buffer for input, codec buffer for output
-    return updateGraphicBufferInMeta_l(
-            portIndex, graphicBuffer, buffer, header,
-            true /* updateCodecBuffer */);
-}
-
-status_t OMXNodeInstance::updateNativeHandleInMeta(
-        OMX_U32 portIndex, const sp<NativeHandle>& nativeHandle, OMX::buffer_id buffer) {
-    Mutex::Autolock autoLock(mLock);
-    OMX_BUFFERHEADERTYPE *header = findBufferHeader(buffer, portIndex);
+status_t OMXNodeInstance::updateNativeHandleInMeta_l(
+        OMX_U32 portIndex, const sp<NativeHandle>& nativeHandle,
+        IOMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header) {
     // No need to check |nativeHandle| since NULL is valid for it as below.
     if (header == NULL) {
         ALOGE("b/25884056");
@@ -1067,9 +1402,7 @@
     }
 
     BufferMeta *bufferMeta = (BufferMeta *)(header->pAppPrivate);
-    // update backup buffer
-    sp<ABuffer> data = bufferMeta->getBuffer(
-            header, false /* backup */, false /* limit */);
+    sp<ABuffer> data = bufferMeta->getBuffer(header, false /* limit */);
     bufferMeta->setNativeHandle(nativeHandle);
     if (mMetadataType[portIndex] == kMetadataBufferTypeNativeHandleSource
             && data->capacity() >= sizeof(VideoNativeHandleMetadata)) {
@@ -1089,32 +1422,23 @@
     return OK;
 }
 
-status_t OMXNodeInstance::createGraphicBufferSource(
-        OMX_U32 portIndex, sp<IGraphicBufferConsumer> bufferConsumer, MetadataBufferType *type) {
+status_t OMXNodeInstance::setInputSurface(
+        const sp<IOMXBufferSource> &bufferSource) {
+    Mutex::Autolock autolock(mLock);
+
     status_t err;
 
     // only allow graphic source on input port, when there are no allocated buffers yet
-    if (portIndex != kPortIndexInput) {
-        android_errorWriteLog(0x534e4554, "29422020");
-        return BAD_VALUE;
-    } else if (mNumPortBuffers[portIndex] > 0) {
+    if (mNumPortBuffers[kPortIndexInput] > 0) {
         android_errorWriteLog(0x534e4554, "29422020");
         return INVALID_OPERATION;
     }
 
-    const sp<GraphicBufferSource> surfaceCheck = getGraphicBufferSource();
-    if (surfaceCheck != NULL) {
-        if (portIndex < NELEM(mMetadataType) && type != NULL) {
-            *type = mMetadataType[portIndex];
-        }
+    if (getBufferSource() != NULL) {
         return ALREADY_EXISTS;
     }
 
-    // Input buffers will hold meta-data (ANativeWindowBuffer references).
-    if (type != NULL) {
-        *type = kMetadataBufferTypeANWBuffer;
-    }
-    err = storeMetaDataInBuffers_l(portIndex, OMX_TRUE, type);
+    err = storeMetaDataInBuffers_l(kPortIndexInput, OMX_TRUE, NULL);
     if (err != OK) {
         return err;
     }
@@ -1123,13 +1447,13 @@
     // codec was configured.
     OMX_PARAM_PORTDEFINITIONTYPE def;
     InitOMXParams(&def);
-    def.nPortIndex = portIndex;
+    def.nPortIndex = kPortIndexInput;
     OMX_ERRORTYPE oerr = OMX_GetParameter(
             mHandle, OMX_IndexParamPortDefinition, &def);
     if (oerr != OMX_ErrorNone) {
         OMX_INDEXTYPE index = OMX_IndexParamPortDefinition;
-        CLOG_ERROR(getParameter, oerr, "%s(%#x): %s:%u",
-                asString(index), index, portString(portIndex), portIndex);
+        CLOG_ERROR(getParameter, oerr, "%s(%#x): %s:%u", asString(index),
+                index, portString(kPortIndexInput), kPortIndexInput);
         return UNKNOWN_ERROR;
     }
 
@@ -1140,105 +1464,20 @@
         return INVALID_OPERATION;
     }
 
-    uint32_t usageBits;
-    oerr = OMX_GetParameter(
-            mHandle, (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits, &usageBits);
-    if (oerr != OMX_ErrorNone) {
-        usageBits = 0;
-    }
-
-    sp<GraphicBufferSource> bufferSource = new GraphicBufferSource(this,
-            def.format.video.nFrameWidth,
-            def.format.video.nFrameHeight,
-            def.nBufferCountActual,
-            usageBits,
-            bufferConsumer);
-
-    if ((err = bufferSource->init()) != OK) {
-        return err;
-    }
-    setGraphicBufferSource(bufferSource);
-
-    return OK;
-}
-
-status_t OMXNodeInstance::createInputSurface(
-        OMX_U32 portIndex, android_dataspace dataSpace,
-        sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type) {
-    if (bufferProducer == NULL) {
-        ALOGE("b/25884056");
+    if (def.format.video.nFrameWidth == 0
+            || def.format.video.nFrameHeight == 0) {
+        ALOGE("Invalid video dimension %ux%u",
+                def.format.video.nFrameWidth,
+                def.format.video.nFrameHeight);
         return BAD_VALUE;
     }
 
-    Mutex::Autolock autolock(mLock);
-    status_t err = createGraphicBufferSource(portIndex, NULL /* bufferConsumer */, type);
-
-    if (err != OK) {
-        return err;
-    }
-
-    mGraphicBufferSource->setDefaultDataSpace(dataSpace);
-
-    *bufferProducer = mGraphicBufferSource->getIGraphicBufferProducer();
+    setBufferSource(bufferSource);
     return OK;
 }
 
-//static
-status_t OMXNodeInstance::createPersistentInputSurface(
-        sp<IGraphicBufferProducer> *bufferProducer,
-        sp<IGraphicBufferConsumer> *bufferConsumer) {
-    if (bufferProducer == NULL || bufferConsumer == NULL) {
-        ALOGE("b/25884056");
-        return BAD_VALUE;
-    }
-    String8 name("GraphicBufferSource");
-
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
-    consumer->setConsumerName(name);
-    consumer->setConsumerUsageBits(GRALLOC_USAGE_HW_VIDEO_ENCODER);
-
-    sp<BufferQueue::ProxyConsumerListener> proxy =
-        new BufferQueue::ProxyConsumerListener(NULL);
-    status_t err = consumer->consumerConnect(proxy, false);
-    if (err != NO_ERROR) {
-        ALOGE("Error connecting to BufferQueue: %s (%d)",
-                strerror(-err), err);
-        return err;
-    }
-
-    *bufferProducer = producer;
-    *bufferConsumer = consumer;
-
-    return OK;
-}
-
-status_t OMXNodeInstance::setInputSurface(
-        OMX_U32 portIndex, const sp<IGraphicBufferConsumer> &bufferConsumer,
-        MetadataBufferType *type) {
-    Mutex::Autolock autolock(mLock);
-    return createGraphicBufferSource(portIndex, bufferConsumer, type);
-}
-
-void OMXNodeInstance::signalEvent(OMX_EVENTTYPE event, OMX_U32 arg1, OMX_U32 arg2) {
-    mOwner->OnEvent(mNodeID, event, arg1, arg2, NULL);
-}
-
-status_t OMXNodeInstance::signalEndOfInputStream() {
-    // For non-Surface input, the MediaCodec should convert the call to a
-    // pair of requests (dequeue input buffer, queue input buffer with EOS
-    // flag set).  Seems easier than doing the equivalent from here.
-    sp<GraphicBufferSource> bufferSource(getGraphicBufferSource());
-    if (bufferSource == NULL) {
-        CLOGW("signalEndOfInputStream can only be used with Surface input");
-        return INVALID_OPERATION;
-    }
-    return bufferSource->signalEndOfInputStream();
-}
-
 status_t OMXNodeInstance::allocateSecureBuffer(
-        OMX_U32 portIndex, size_t size, OMX::buffer_id *buffer,
+        OMX_U32 portIndex, size_t size, IOMX::buffer_id *buffer,
         void **buffer_data, sp<NativeHandle> *native_handle) {
     if (buffer == NULL || buffer_data == NULL || native_handle == NULL) {
         ALOGE("b/25884056");
@@ -1258,14 +1497,7 @@
         android_errorWriteLog(0x534e4554, "35467458");
         return BAD_VALUE;
     }
-
-    if (mSecureBufferType[portIndex] == kSecureBufferTypeUnknown) {
-        ALOGE("b/63522818");
-        android_errorWriteLog(0x534e4554, "63522818");
-        return ERROR_UNSUPPORTED;
-    }
-
-    BufferMeta *buffer_meta = new BufferMeta(size, portIndex);
+    BufferMeta *buffer_meta = new BufferMeta(portIndex);
 
     OMX_BUFFERHEADERTYPE *header;
 
@@ -1296,9 +1528,9 @@
 
     addActiveBuffer(portIndex, *buffer);
 
-    sp<GraphicBufferSource> bufferSource(getGraphicBufferSource());
+    sp<IOMXBufferSource> bufferSource(getBufferSource());
     if (bufferSource != NULL && portIndex == kPortIndexInput) {
-        bufferSource->addCodecBuffer(header);
+        bufferSource->onInputBufferAdded(*buffer);
     }
     CLOG_BUFFER(allocateSecureBuffer, NEW_BUFFER_FMT(
             *buffer, portIndex, "%zu@%p:%p", size, *buffer_data,
@@ -1307,74 +1539,8 @@
     return OK;
 }
 
-status_t OMXNodeInstance::allocateBufferWithBackup(
-        OMX_U32 portIndex, const sp<IMemory> &params,
-        OMX::buffer_id *buffer, OMX_U32 allottedSize) {
-    if (params == NULL || buffer == NULL) {
-        ALOGE("b/25884056");
-        return BAD_VALUE;
-    }
-
-    Mutex::Autolock autoLock(mLock);
-    if (allottedSize > params->size() || portIndex >= NELEM(mNumPortBuffers)) {
-        return BAD_VALUE;
-    }
-
-    if (!mSailed) {
-        ALOGE("b/35467458");
-        android_errorWriteLog(0x534e4554, "35467458");
-        return BAD_VALUE;
-    }
-
-    if (mSecureBufferType[portIndex] != kSecureBufferTypeUnknown) {
-        ALOGE("b/63522818");
-        android_errorWriteLog(0x534e4554, "63522818");
-        return ERROR_UNSUPPORTED;
-    }
-
-    // metadata buffers are not connected cross process; only copy if not meta
-    bool copy = mMetadataType[portIndex] == kMetadataBufferTypeInvalid;
-
-    BufferMeta *buffer_meta = new BufferMeta(
-            params, portIndex,
-            (portIndex == kPortIndexInput) && copy /* copyToOmx */,
-            (portIndex == kPortIndexOutput) && copy /* copyFromOmx */,
-            NULL /* data */);
-
-    OMX_BUFFERHEADERTYPE *header;
-
-    OMX_ERRORTYPE err = OMX_AllocateBuffer(
-            mHandle, &header, portIndex, buffer_meta, allottedSize);
-    if (err != OMX_ErrorNone) {
-        CLOG_ERROR(allocateBufferWithBackup, err,
-                SIMPLE_BUFFER(portIndex, (size_t)allottedSize, params->pointer()));
-        delete buffer_meta;
-        buffer_meta = NULL;
-
-        *buffer = 0;
-
-        return StatusFromOMXError(err);
-    }
-
-    CHECK_EQ(header->pAppPrivate, buffer_meta);
-
-    *buffer = makeBufferID(header);
-
-    addActiveBuffer(portIndex, *buffer);
-
-    sp<GraphicBufferSource> bufferSource(getGraphicBufferSource());
-    if (bufferSource != NULL && portIndex == kPortIndexInput) {
-        bufferSource->addCodecBuffer(header);
-    }
-
-    CLOG_BUFFER(allocateBufferWithBackup, NEW_BUFFER_FMT(*buffer, portIndex, "%zu@%p :> %u@%p",
-            params->size(), params->pointer(), allottedSize, header->pBuffer));
-
-    return OK;
-}
-
 status_t OMXNodeInstance::freeBuffer(
-        OMX_U32 portIndex, OMX::buffer_id buffer) {
+        OMX_U32 portIndex, IOMX::buffer_id buffer) {
     Mutex::Autolock autoLock(mLock);
     CLOG_BUFFER(freeBuffer, "%s:%u %#x", portString(portIndex), portIndex, buffer);
 
@@ -1397,7 +1563,8 @@
     return StatusFromOMXError(err);
 }
 
-status_t OMXNodeInstance::fillBuffer(OMX::buffer_id buffer, int fenceFd) {
+status_t OMXNodeInstance::fillBuffer(
+        IOMX::buffer_id buffer, const OMXBuffer &omxBuffer, int fenceFd) {
     Mutex::Autolock autoLock(mLock);
 
     OMX_BUFFERHEADERTYPE *header = findBufferHeader(buffer, kPortIndexOutput);
@@ -1405,6 +1572,20 @@
         ALOGE("b/25884056");
         return BAD_VALUE;
     }
+
+    if (omxBuffer.mBufferType == OMXBuffer::kBufferTypeANWBuffer) {
+        status_t err = updateGraphicBufferInMeta_l(
+                kPortIndexOutput, omxBuffer.mGraphicBuffer, buffer, header);
+
+        if (err != OK) {
+            CLOG_ERROR(fillBuffer, err, FULL_BUFFER(
+                    (intptr_t)header->pBuffer, header, fenceFd));
+            return err;
+        }
+    } else if (omxBuffer.mBufferType != OMXBuffer::kBufferTypePreset) {
+        return BAD_VALUE;
+    }
+
     header->nFilledLen = 0;
     header->nOffset = 0;
     header->nFlags = 0;
@@ -1432,13 +1613,38 @@
 }
 
 status_t OMXNodeInstance::emptyBuffer(
-        OMX::buffer_id buffer,
-        OMX_U32 rangeOffset, OMX_U32 rangeLength,
+        buffer_id buffer, const OMXBuffer &omxBuffer,
         OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
     Mutex::Autolock autoLock(mLock);
 
+    switch (omxBuffer.mBufferType) {
+    case OMXBuffer::kBufferTypePreset:
+        return emptyBuffer_l(
+                buffer, omxBuffer.mRangeOffset, omxBuffer.mRangeLength,
+                flags, timestamp, fenceFd);
+
+    case OMXBuffer::kBufferTypeANWBuffer:
+        return emptyGraphicBuffer_l(
+                buffer, omxBuffer.mGraphicBuffer, flags, timestamp, fenceFd);
+
+    case OMXBuffer::kBufferTypeNativeHandle:
+        return emptyNativeHandleBuffer_l(
+                buffer, omxBuffer.mNativeHandle, flags, timestamp, fenceFd);
+
+    default:
+        break;
+    }
+
+    return BAD_VALUE;
+}
+
+status_t OMXNodeInstance::emptyBuffer_l(
+        IOMX::buffer_id buffer,
+        OMX_U32 rangeOffset, OMX_U32 rangeLength,
+        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
+
     // no emptybuffer if using input surface
-    if (getGraphicBufferSource() != NULL) {
+    if (getBufferSource() != NULL) {
         android_errorWriteLog(0x534e4554, "29422020");
         return INVALID_OPERATION;
     }
@@ -1584,25 +1790,25 @@
 }
 
 // like emptyBuffer, but the data is already in header->pBuffer
-status_t OMXNodeInstance::emptyGraphicBuffer(
-        OMX_BUFFERHEADERTYPE *header, const sp<GraphicBuffer> &graphicBuffer,
+status_t OMXNodeInstance::emptyGraphicBuffer_l(
+        IOMX::buffer_id buffer, const sp<GraphicBuffer> &graphicBuffer,
         OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
+    OMX_BUFFERHEADERTYPE *header = findBufferHeader(buffer, kPortIndexInput);
     if (header == NULL) {
         ALOGE("b/25884056");
         return BAD_VALUE;
     }
 
-    Mutex::Autolock autoLock(mLock);
-    OMX::buffer_id buffer = findBufferID(header);
     status_t err = updateGraphicBufferInMeta_l(
-            kPortIndexInput, graphicBuffer, buffer, header,
-            true /* updateCodecBuffer */);
+            kPortIndexInput, graphicBuffer, buffer, header);
     if (err != OK) {
         CLOG_ERROR(emptyGraphicBuffer, err, FULL_BUFFER(
                 (intptr_t)header->pBuffer, header, fenceFd));
         return err;
     }
 
+    int64_t codecTimeUs = getCodecTimestamp(timestamp);
+
     header->nOffset = 0;
     if (graphicBuffer == NULL) {
         header->nFilledLen = 0;
@@ -1611,9 +1817,100 @@
     } else {
         header->nFilledLen = sizeof(VideoNativeMetadata);
     }
+    return emptyBuffer_l(header, flags, codecTimeUs, (intptr_t)header->pBuffer, fenceFd);
+}
+
+status_t OMXNodeInstance::setMaxPtsGapUs(const void *params, size_t size) {
+    if (params == NULL || size != sizeof(OMX_PARAM_U32TYPE)) {
+        CLOG_ERROR(setMaxPtsGapUs, BAD_VALUE, "invalid params (%p,%zu)", params, size);
+        return BAD_VALUE;
+    }
+
+    mMaxTimestampGapUs = (int64_t)((OMX_PARAM_U32TYPE*)params)->nU32;
+
+    return OK;
+}
+
+int64_t OMXNodeInstance::getCodecTimestamp(OMX_TICKS timestamp) {
+    int64_t originalTimeUs = timestamp;
+
+    if (mMaxTimestampGapUs > 0ll) {
+        /* Cap timestamp gap between adjacent frames to specified max
+         *
+         * In the scenario of cast mirroring, encoding could be suspended for
+         * prolonged periods. Limiting the pts gap to workaround the problem
+         * where encoder's rate control logic produces huge frames after a
+         * long period of suspension.
+         */
+        if (mPrevOriginalTimeUs >= 0ll) {
+            int64_t timestampGapUs = originalTimeUs - mPrevOriginalTimeUs;
+            timestamp = (timestampGapUs < mMaxTimestampGapUs ?
+                timestampGapUs : mMaxTimestampGapUs) + mPrevModifiedTimeUs;
+        }
+        ALOGV("IN  timestamp: %lld -> %lld",
+            static_cast<long long>(originalTimeUs),
+            static_cast<long long>(timestamp));
+    }
+
+    mPrevOriginalTimeUs = originalTimeUs;
+    mPrevModifiedTimeUs = timestamp;
+
+    if (mMaxTimestampGapUs > 0ll && !mRestorePtsFailed) {
+        mOriginalTimeUs.add(timestamp, originalTimeUs);
+    }
+
+    return timestamp;
+}
+
+status_t OMXNodeInstance::emptyNativeHandleBuffer_l(
+        IOMX::buffer_id buffer, const sp<NativeHandle> &nativeHandle,
+        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
+    OMX_BUFFERHEADERTYPE *header = findBufferHeader(buffer, kPortIndexInput);
+    if (header == NULL) {
+        ALOGE("b/25884056");
+        return BAD_VALUE;
+    }
+
+    status_t err = updateNativeHandleInMeta_l(
+            kPortIndexInput, nativeHandle, buffer, header);
+    if (err != OK) {
+        CLOG_ERROR(emptyNativeHandleBuffer_l, err, FULL_BUFFER(
+                (intptr_t)header->pBuffer, header, fenceFd));
+        return err;
+    }
+
+    header->nOffset = 0;
+    header->nFilledLen = (nativeHandle == NULL) ? 0 : sizeof(VideoNativeMetadata);
+
     return emptyBuffer_l(header, flags, timestamp, (intptr_t)header->pBuffer, fenceFd);
 }
 
+void OMXNodeInstance::codecBufferFilled(omx_message &msg) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mMaxTimestampGapUs <= 0ll || mRestorePtsFailed) {
+        return;
+    }
+
+    OMX_U32 &flags = msg.u.extended_buffer_data.flags;
+    OMX_TICKS &timestamp = msg.u.extended_buffer_data.timestamp;
+
+    if (!(flags & OMX_BUFFERFLAG_CODECCONFIG)) {
+        ssize_t index = mOriginalTimeUs.indexOfKey(timestamp);
+        if (index >= 0) {
+            ALOGV("OUT timestamp: %lld -> %lld",
+                    static_cast<long long>(timestamp),
+                    static_cast<long long>(mOriginalTimeUs[index]));
+            timestamp = mOriginalTimeUs[index];
+            mOriginalTimeUs.removeItemsAt(index);
+        } else {
+            // giving up the effort as encoder doesn't appear to preserve pts
+            ALOGW("giving up limiting timestamp gap (pts = %lld)", timestamp);
+            mRestorePtsFailed = true;
+        }
+    }
+}
+
 status_t OMXNodeInstance::getExtensionIndex(
         const char *parameterName, OMX_INDEXTYPE *index) {
     Mutex::Autolock autoLock(mLock);
@@ -1624,133 +1921,22 @@
     return StatusFromOMXError(err);
 }
 
-inline static const char *asString(IOMX::InternalOptionType i, const char *def = "??") {
-    switch (i) {
-        case IOMX::INTERNAL_OPTION_SUSPEND:           return "SUSPEND";
-        case IOMX::INTERNAL_OPTION_REPEAT_PREVIOUS_FRAME_DELAY:
-            return "REPEAT_PREVIOUS_FRAME_DELAY";
-        case IOMX::INTERNAL_OPTION_MAX_TIMESTAMP_GAP: return "MAX_TIMESTAMP_GAP";
-        case IOMX::INTERNAL_OPTION_MAX_FPS:           return "MAX_FPS";
-        case IOMX::INTERNAL_OPTION_START_TIME:        return "START_TIME";
-        case IOMX::INTERNAL_OPTION_TIME_LAPSE:        return "TIME_LAPSE";
-        case IOMX::INTERNAL_OPTION_TIME_OFFSET:       return "TIME_OFFSET";
-        default:                                      return def;
-    }
+status_t OMXNodeInstance::dispatchMessage(const omx_message &msg) {
+    mDispatcher->post(msg, true /*realTime*/);
+    return OK;
 }
 
-template<typename T>
-static bool getInternalOption(
-        const void *data, size_t size, T *out) {
-    if (size != sizeof(T)) {
-        return false;
+status_t OMXNodeInstance::setQuirks(OMX_U32 quirks) {
+    if (quirks & ~kQuirksMask) {
+        return BAD_VALUE;
     }
-    *out = *(T*)data;
-    return true;
-}
 
-status_t OMXNodeInstance::setInternalOption(
-        OMX_U32 portIndex,
-        IOMX::InternalOptionType type,
-        const void *data,
-        size_t size) {
-    CLOG_CONFIG(setInternalOption, "%s(%d): %s:%u %zu@%p",
-            asString(type), type, portString(portIndex), portIndex, size, data);
-    switch (type) {
-        case IOMX::INTERNAL_OPTION_SUSPEND:
-        case IOMX::INTERNAL_OPTION_REPEAT_PREVIOUS_FRAME_DELAY:
-        case IOMX::INTERNAL_OPTION_MAX_TIMESTAMP_GAP:
-        case IOMX::INTERNAL_OPTION_MAX_FPS:
-        case IOMX::INTERNAL_OPTION_START_TIME:
-        case IOMX::INTERNAL_OPTION_TIME_LAPSE:
-        case IOMX::INTERNAL_OPTION_TIME_OFFSET:
-        case IOMX::INTERNAL_OPTION_COLOR_ASPECTS:
-        {
-            const sp<GraphicBufferSource> &bufferSource =
-                getGraphicBufferSource();
+    mQuirks = quirks;
 
-            if (bufferSource == NULL || portIndex != kPortIndexInput) {
-                CLOGW("setInternalOption is only for Surface input");
-                return ERROR_UNSUPPORTED;
-            }
-
-            if (type == IOMX::INTERNAL_OPTION_SUSPEND) {
-                bool suspend;
-                if (!getInternalOption(data, size, &suspend)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "suspend=%d", suspend);
-                bufferSource->suspend(suspend);
-            } else if (type == IOMX::INTERNAL_OPTION_REPEAT_PREVIOUS_FRAME_DELAY) {
-                int64_t delayUs;
-                if (!getInternalOption(data, size, &delayUs)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "delayUs=%lld", (long long)delayUs);
-                return bufferSource->setRepeatPreviousFrameDelayUs(delayUs);
-            } else if (type == IOMX::INTERNAL_OPTION_TIME_OFFSET) {
-                int64_t timeOffsetUs;
-                if (!getInternalOption(data, size, &timeOffsetUs)) {
-                    return INVALID_OPERATION;
-                }
-                CLOG_CONFIG(setInternalOption, "bufferOffsetUs=%lld", (long long)timeOffsetUs);
-                return bufferSource->setInputBufferTimeOffset(timeOffsetUs);
-            } else if (type == IOMX::INTERNAL_OPTION_MAX_TIMESTAMP_GAP) {
-                int64_t maxGapUs;
-                if (!getInternalOption(data, size, &maxGapUs)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "gapUs=%lld", (long long)maxGapUs);
-                return bufferSource->setMaxTimestampGapUs(maxGapUs);
-            } else if (type == IOMX::INTERNAL_OPTION_MAX_FPS) {
-                float maxFps;
-                if (!getInternalOption(data, size, &maxFps)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "maxFps=%f", maxFps);
-                return bufferSource->setMaxFps(maxFps);
-            } else if (type == IOMX::INTERNAL_OPTION_START_TIME) {
-                int64_t skipFramesBeforeUs;
-                if (!getInternalOption(data, size, &skipFramesBeforeUs)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "beforeUs=%lld", (long long)skipFramesBeforeUs);
-                bufferSource->setSkipFramesBeforeUs(skipFramesBeforeUs);
-            } else if (type == IOMX::INTERNAL_OPTION_TIME_LAPSE) {
-                GraphicBufferSource::TimeLapseConfig config;
-                if (!getInternalOption(data, size, &config)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "perFrameUs=%lld perCaptureUs=%lld",
-                        (long long)config.mTimePerFrameUs, (long long)config.mTimePerCaptureUs);
-
-                return bufferSource->setTimeLapseConfig(config);
-            } else if (type == IOMX::INTERNAL_OPTION_COLOR_ASPECTS) {
-                ColorAspects aspects;
-                if (!getInternalOption(data, size, &aspects)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "setting color aspects");
-                bufferSource->setColorAspects(aspects);
-            }
-
-            return OK;
-        }
-
-        default:
-            return ERROR_UNSUPPORTED;
-    }
+    return OK;
 }
 
 bool OMXNodeInstance::handleMessage(omx_message &msg) {
-    const sp<GraphicBufferSource>& bufferSource(getGraphicBufferSource());
-
     if (msg.type == omx_message::FILL_BUFFER_DONE) {
         OMX_BUFFERHEADERTYPE *buffer =
             findBufferHeader(msg.u.extended_buffer_data.buffer, kPortIndexOutput);
@@ -1780,12 +1966,8 @@
         }
         buffer_meta->CopyFromOMX(buffer);
 
-        if (bufferSource != NULL) {
-            // fix up the buffer info (especially timestamp) if needed
-            bufferSource->codecBufferFilled(buffer);
-
-            msg.u.extended_buffer_data.timestamp = buffer->nTimeStamp;
-        }
+        // fix up the buffer info (especially timestamp) if needed
+        codecBufferFilled(msg);
     } else if (msg.type == omx_message::EMPTY_BUFFER_DONE) {
         OMX_BUFFERHEADERTYPE *buffer =
             findBufferHeader(msg.u.buffer_data.buffer, kPortIndexInput);
@@ -1801,20 +1983,100 @@
                     EBD, WITH_STATS(EMPTY_BUFFER(msg.u.buffer_data.buffer, buffer, msg.fenceFd)));
         }
 
+        const sp<IOMXBufferSource> bufferSource(getBufferSource());
+
         if (bufferSource != NULL) {
-            // This is one of the buffers used exclusively by
-            // GraphicBufferSource.
+            // This is one of the buffers used exclusively by IOMXBufferSource.
             // Don't dispatch a message back to ACodec, since it doesn't
             // know that anyone asked to have the buffer emptied and will
             // be very confused.
-            bufferSource->codecBufferEmptied(buffer, msg.fenceFd);
+            bufferSource->onInputBufferEmptied(
+                    msg.u.buffer_data.buffer, OMXFenceParcelable(msg.fenceFd));
             return true;
         }
+    } else if (msg.type == omx_message::EVENT &&
+            msg.u.event_data.event == OMX_EventDataSpaceChanged) {
+        handleDataSpaceChanged(msg);
     }
 
     return false;
 }
 
+bool OMXNodeInstance::handleDataSpaceChanged(omx_message &msg) {
+    android_dataspace dataSpace = (android_dataspace) msg.u.event_data.data1;
+    android_dataspace origDataSpace = dataSpace;
+
+    if (!ColorUtils::convertDataSpaceToV0(dataSpace)) {
+        // Do not process the data space change, don't notify client either
+        return true;
+    }
+
+    android_pixel_format pixelFormat = (android_pixel_format)msg.u.event_data.data3;
+
+    ColorAspects requestedAspects = ColorUtils::unpackToColorAspects(msg.u.event_data.data2);
+    ColorAspects aspects = requestedAspects; // initially requested aspects
+
+    // request color aspects to encode
+    OMX_INDEXTYPE index;
+    status_t err = getExtensionIndex(
+            "OMX.google.android.index.describeColorAspects", &index);
+    if (err == OK) {
+        // V0 dataspace
+        DescribeColorAspectsParams params;
+        InitOMXParams(&params);
+        params.nPortIndex = kPortIndexInput;
+        params.nDataSpace = origDataSpace;
+        params.nPixelFormat = pixelFormat;
+        params.bDataSpaceChanged = OMX_TRUE;
+        params.sAspects = requestedAspects;
+
+        err = getConfig(index, &params, sizeof(params));
+        if (err == OK) {
+            aspects = params.sAspects;
+            ALOGD("Codec resolved it to (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
+                    params.sAspects.mRange, asString(params.sAspects.mRange),
+                    params.sAspects.mPrimaries, asString(params.sAspects.mPrimaries),
+                    params.sAspects.mMatrixCoeffs, asString(params.sAspects.mMatrixCoeffs),
+                    params.sAspects.mTransfer, asString(params.sAspects.mTransfer),
+                    err, asString(err));
+        } else {
+            params.sAspects = aspects;
+            err = OK;
+        }
+        params.bDataSpaceChanged = OMX_FALSE;
+        for (int triesLeft = 2; --triesLeft >= 0; ) {
+            status_t err = setConfig(index, &params, sizeof(params));
+            if (err == OK) {
+                err = getConfig(index, &params, sizeof(params));
+            }
+            if (err != OK || !ColorUtils::checkIfAspectsChangedAndUnspecifyThem(
+                    params.sAspects, aspects)) {
+                // if we can't set or get color aspects, still communicate dataspace to client
+                break;
+            }
+
+            ALOGW_IF(triesLeft == 0, "Codec repeatedly changed requested ColorAspects.");
+        }
+    }
+
+    ALOGV("Set color aspects to (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
+            aspects.mRange, asString(aspects.mRange),
+            aspects.mPrimaries, asString(aspects.mPrimaries),
+            aspects.mMatrixCoeffs, asString(aspects.mMatrixCoeffs),
+            aspects.mTransfer, asString(aspects.mTransfer),
+            err, asString(err));
+
+    // signal client that the dataspace has changed; this will update the output format
+    // TODO: we should tie this to an output buffer somehow, and signal the change
+    // just before the output buffer is returned to the client, but there are many
+    // ways this could fail (e.g. flushing), and we are not yet supporting this scenario.
+
+    msg.u.event_data.data1 = (OMX_U32) dataSpace;
+    msg.u.event_data.data2 = (OMX_U32) ColorUtils::packToU32(aspects);
+
+    return false;
+}
+
 void OMXNodeInstance::onMessages(std::list<omx_message> &messages) {
     for (std::list<omx_message>::iterator it = messages.begin(); it != messages.end(); ) {
         if (handleMessage(*it)) {
@@ -1829,15 +2091,11 @@
     }
 }
 
-void OMXNodeInstance::onObserverDied(OMXMaster *master) {
+void OMXNodeInstance::onObserverDied() {
     ALOGE("!!! Observer died. Quickly, do something, ... anything...");
 
     // Try to force shutdown of the node and hope for the best.
-    freeNode(master);
-}
-
-void OMXNodeInstance::onGetHandleFailed() {
-    delete this;
+    freeNode();
 }
 
 // OMXNodeInstance::OnEvent calls OMX::OnEvent, which then calls here.
@@ -1881,13 +2139,13 @@
 
     CLOGI_(level, onEvent, "%s(%x), %s(%x), %s(%x)",
             asString(event), event, arg1String, arg1, arg2String, arg2);
-    const sp<GraphicBufferSource>& bufferSource(getGraphicBufferSource());
+    const sp<IOMXBufferSource> bufferSource(getBufferSource());
 
     if (bufferSource != NULL
             && event == OMX_EventCmdComplete
             && arg1 == OMX_CommandStateSet
             && arg2 == OMX_StateExecuting) {
-        bufferSource->omxExecuting();
+        bufferSource->onOmxExecuting();
     }
 
     // allow configuration if we return to the loaded state
@@ -1914,8 +2172,39 @@
     if (instance->mDying) {
         return OMX_ErrorNone;
     }
-    return instance->owner()->OnEvent(
-            instance->nodeID(), eEvent, nData1, nData2, pEventData);
+
+    instance->onEvent(eEvent, nData1, nData2);
+
+    // output rendered events are not processed as regular events until they hit the observer
+    if (eEvent == OMX_EventOutputRendered) {
+        if (pEventData == NULL) {
+            return OMX_ErrorBadParameter;
+        }
+
+        // process data from array
+        OMX_VIDEO_RENDEREVENTTYPE *renderData = (OMX_VIDEO_RENDEREVENTTYPE *)pEventData;
+        for (size_t i = 0; i < nData1; ++i) {
+            omx_message msg;
+            msg.type = omx_message::FRAME_RENDERED;
+            msg.fenceFd = -1;
+            msg.u.render_data.timestamp = renderData[i].nMediaTimeUs;
+            msg.u.render_data.nanoTime = renderData[i].nSystemTimeNs;
+
+            instance->mDispatcher->post(msg, false /* realTime */);
+        }
+        return OMX_ErrorNone;
+    }
+
+    omx_message msg;
+    msg.type = omx_message::EVENT;
+    msg.fenceFd = -1;
+    msg.u.event_data.event = eEvent;
+    msg.u.event_data.data1 = nData1;
+    msg.u.event_data.data2 = nData2;
+
+    instance->mDispatcher->post(msg, true /* realTime */);
+
+    return OMX_ErrorNone;
 }
 
 // static
@@ -1932,8 +2221,14 @@
         return OMX_ErrorNone;
     }
     int fenceFd = instance->retrieveFenceFromMeta_l(pBuffer, kPortIndexOutput);
-    return instance->owner()->OnEmptyBufferDone(instance->nodeID(),
-            instance->findBufferID(pBuffer), pBuffer, fenceFd);
+
+    omx_message msg;
+    msg.type = omx_message::EMPTY_BUFFER_DONE;
+    msg.fenceFd = fenceFd;
+    msg.u.buffer_data.buffer = instance->findBufferID(pBuffer);
+    instance->mDispatcher->post(msg);
+
+    return OMX_ErrorNone;
 }
 
 // static
@@ -1950,11 +2245,21 @@
         return OMX_ErrorNone;
     }
     int fenceFd = instance->retrieveFenceFromMeta_l(pBuffer, kPortIndexOutput);
-    return instance->owner()->OnFillBufferDone(instance->nodeID(),
-            instance->findBufferID(pBuffer), pBuffer, fenceFd);
+
+    omx_message msg;
+    msg.type = omx_message::FILL_BUFFER_DONE;
+    msg.fenceFd = fenceFd;
+    msg.u.extended_buffer_data.buffer = instance->findBufferID(pBuffer);
+    msg.u.extended_buffer_data.range_offset = pBuffer->nOffset;
+    msg.u.extended_buffer_data.range_length = pBuffer->nFilledLen;
+    msg.u.extended_buffer_data.flags = pBuffer->nFlags;
+    msg.u.extended_buffer_data.timestamp = pBuffer->nTimeStamp;
+    instance->mDispatcher->post(msg);
+
+    return OMX_ErrorNone;
 }
 
-void OMXNodeInstance::addActiveBuffer(OMX_U32 portIndex, OMX::buffer_id id) {
+void OMXNodeInstance::addActiveBuffer(OMX_U32 portIndex, IOMX::buffer_id id) {
     ActiveBuffer active;
     active.mPortIndex = portIndex;
     active.mID = id;
@@ -1966,7 +2271,7 @@
 }
 
 void OMXNodeInstance::removeActiveBuffer(
-        OMX_U32 portIndex, OMX::buffer_id id) {
+        OMX_U32 portIndex, IOMX::buffer_id id) {
     for (size_t i = 0; i < mActiveBuffers.size(); ++i) {
         if (mActiveBuffers[i].mPortIndex == portIndex
                 && mActiveBuffers[i].mID == id) {
@@ -1991,17 +2296,17 @@
     }
 }
 
-OMX::buffer_id OMXNodeInstance::makeBufferID(OMX_BUFFERHEADERTYPE *bufferHeader) {
+IOMX::buffer_id OMXNodeInstance::makeBufferID(OMX_BUFFERHEADERTYPE *bufferHeader) {
     if (bufferHeader == NULL) {
         return 0;
     }
     Mutex::Autolock autoLock(mBufferIDLock);
-    OMX::buffer_id buffer;
+    IOMX::buffer_id buffer;
     do { // handle the very unlikely case of ID overflow
         if (++mBufferIDCount == 0) {
             ++mBufferIDCount;
         }
-        buffer = (OMX::buffer_id)mBufferIDCount;
+        buffer = (IOMX::buffer_id)mBufferIDCount;
     } while (mBufferIDToBufferHeader.indexOfKey(buffer) >= 0);
     mBufferIDToBufferHeader.add(buffer, bufferHeader);
     mBufferHeaderToBufferID.add(bufferHeader, buffer);
@@ -2009,7 +2314,7 @@
 }
 
 OMX_BUFFERHEADERTYPE *OMXNodeInstance::findBufferHeader(
-        OMX::buffer_id buffer, OMX_U32 portIndex) {
+        IOMX::buffer_id buffer, OMX_U32 portIndex) {
     if (buffer == 0) {
         return NULL;
     }
@@ -2030,7 +2335,7 @@
     return header;
 }
 
-OMX::buffer_id OMXNodeInstance::findBufferID(OMX_BUFFERHEADERTYPE *bufferHeader) {
+IOMX::buffer_id OMXNodeInstance::findBufferID(OMX_BUFFERHEADERTYPE *bufferHeader) {
     if (bufferHeader == NULL) {
         return 0;
     }
@@ -2043,7 +2348,7 @@
     return mBufferHeaderToBufferID.valueAt(index);
 }
 
-void OMXNodeInstance::invalidateBufferID(OMX::buffer_id buffer) {
+void OMXNodeInstance::invalidateBufferID(IOMX::buffer_id buffer) {
     if (buffer == 0) {
         return;
     }
diff --git a/media/libstagefright/omx/OMXUtils.cpp b/media/libstagefright/omx/OMXUtils.cpp
index 799696c..ee6d1d5 100644
--- a/media/libstagefright/omx/OMXUtils.cpp
+++ b/media/libstagefright/omx/OMXUtils.cpp
@@ -20,7 +20,10 @@
 #include <string.h>
 
 #include <media/hardware/HardwareAPI.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AUtils.h>
 #include <media/stagefright/MediaErrors.h>
+#include <media/MediaDefs.h>
 #include "OMXUtils.h"
 
 namespace android {
@@ -29,9 +32,13 @@
     switch (err) {
         case OMX_ErrorNone:
             return OK;
+        case OMX_ErrorNoMore:
+            return NOT_ENOUGH_DATA;
         case OMX_ErrorUnsupportedSetting:
         case OMX_ErrorUnsupportedIndex:
             return ERROR_UNSUPPORTED; // this is a media specific error
+        case OMX_ErrorBadParameter:
+            return BAD_VALUE;
         case OMX_ErrorInsufficientResources:
             return NO_MEMORY;
         case OMX_ErrorInvalidComponentName:
@@ -101,5 +108,273 @@
 
 /**************************************************************************************************/
 
+const char *GetComponentRole(bool isEncoder, const char *mime) {
+    struct MimeToRole {
+        const char *mime;
+        const char *decoderRole;
+        const char *encoderRole;
+    };
+
+    static const MimeToRole kMimeToRole[] = {
+        { MEDIA_MIMETYPE_AUDIO_MPEG,
+            "audio_decoder.mp3", "audio_encoder.mp3" },
+        { MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I,
+            "audio_decoder.mp1", "audio_encoder.mp1" },
+        { MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II,
+            "audio_decoder.mp2", "audio_encoder.mp2" },
+        { MEDIA_MIMETYPE_AUDIO_AMR_NB,
+            "audio_decoder.amrnb", "audio_encoder.amrnb" },
+        { MEDIA_MIMETYPE_AUDIO_AMR_WB,
+            "audio_decoder.amrwb", "audio_encoder.amrwb" },
+        { MEDIA_MIMETYPE_AUDIO_AAC,
+            "audio_decoder.aac", "audio_encoder.aac" },
+        { MEDIA_MIMETYPE_AUDIO_VORBIS,
+            "audio_decoder.vorbis", "audio_encoder.vorbis" },
+        { MEDIA_MIMETYPE_AUDIO_OPUS,
+            "audio_decoder.opus", "audio_encoder.opus" },
+        { MEDIA_MIMETYPE_AUDIO_G711_MLAW,
+            "audio_decoder.g711mlaw", "audio_encoder.g711mlaw" },
+        { MEDIA_MIMETYPE_AUDIO_G711_ALAW,
+            "audio_decoder.g711alaw", "audio_encoder.g711alaw" },
+        { MEDIA_MIMETYPE_VIDEO_AVC,
+            "video_decoder.avc", "video_encoder.avc" },
+        { MEDIA_MIMETYPE_VIDEO_HEVC,
+            "video_decoder.hevc", "video_encoder.hevc" },
+        { MEDIA_MIMETYPE_VIDEO_MPEG4,
+            "video_decoder.mpeg4", "video_encoder.mpeg4" },
+        { MEDIA_MIMETYPE_VIDEO_H263,
+            "video_decoder.h263", "video_encoder.h263" },
+        { MEDIA_MIMETYPE_VIDEO_VP8,
+            "video_decoder.vp8", "video_encoder.vp8" },
+        { MEDIA_MIMETYPE_VIDEO_VP9,
+            "video_decoder.vp9", "video_encoder.vp9" },
+        { MEDIA_MIMETYPE_AUDIO_RAW,
+            "audio_decoder.raw", "audio_encoder.raw" },
+        { MEDIA_MIMETYPE_VIDEO_DOLBY_VISION,
+            "video_decoder.dolby-vision", "video_encoder.dolby-vision" },
+        { MEDIA_MIMETYPE_AUDIO_FLAC,
+            "audio_decoder.flac", "audio_encoder.flac" },
+        { MEDIA_MIMETYPE_AUDIO_MSGSM,
+            "audio_decoder.gsm", "audio_encoder.gsm" },
+        { MEDIA_MIMETYPE_VIDEO_MPEG2,
+            "video_decoder.mpeg2", "video_encoder.mpeg2" },
+        { MEDIA_MIMETYPE_AUDIO_AC3,
+            "audio_decoder.ac3", "audio_encoder.ac3" },
+        { MEDIA_MIMETYPE_AUDIO_EAC3,
+            "audio_decoder.eac3", "audio_encoder.eac3" },
+    };
+
+    static const size_t kNumMimeToRole =
+        sizeof(kMimeToRole) / sizeof(kMimeToRole[0]);
+
+    size_t i;
+    for (i = 0; i < kNumMimeToRole; ++i) {
+        if (!strcasecmp(mime, kMimeToRole[i].mime)) {
+            break;
+        }
+    }
+
+    if (i == kNumMimeToRole) {
+        return NULL;
+    }
+
+    return isEncoder ? kMimeToRole[i].encoderRole
+                  : kMimeToRole[i].decoderRole;
+}
+
+status_t SetComponentRole(const sp<IOMXNode> &omxNode, const char *role) {
+    OMX_PARAM_COMPONENTROLETYPE roleParams;
+    InitOMXParams(&roleParams);
+
+    strncpy((char *)roleParams.cRole,
+            role, OMX_MAX_STRINGNAME_SIZE - 1);
+
+    roleParams.cRole[OMX_MAX_STRINGNAME_SIZE - 1] = '\0';
+
+    return omxNode->setParameter(
+            OMX_IndexParamStandardComponentRole,
+            &roleParams, sizeof(roleParams));
+}
+
+bool DescribeDefaultColorFormat(DescribeColorFormat2Params &params) {
+    MediaImage2 &image = params.sMediaImage;
+    memset(&image, 0, sizeof(image));
+
+    image.mType = MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
+    image.mNumPlanes = 0;
+
+    const OMX_COLOR_FORMATTYPE fmt = params.eColorFormat;
+    image.mWidth = params.nFrameWidth;
+    image.mHeight = params.nFrameHeight;
+
+    // only supporting YUV420
+    if (fmt != OMX_COLOR_FormatYUV420Planar &&
+        fmt != OMX_COLOR_FormatYUV420PackedPlanar &&
+        fmt != OMX_COLOR_FormatYUV420SemiPlanar &&
+        fmt != OMX_COLOR_FormatYUV420PackedSemiPlanar &&
+        fmt != (OMX_COLOR_FORMATTYPE)HAL_PIXEL_FORMAT_YV12) {
+        ALOGW("do not know color format 0x%x = %d", fmt, fmt);
+        return false;
+    }
+
+    // TEMPORARY FIX for some vendors that advertise sliceHeight as 0
+    if (params.nStride != 0 && params.nSliceHeight == 0) {
+        ALOGW("using sliceHeight=%u instead of what codec advertised (=0)",
+                params.nFrameHeight);
+        params.nSliceHeight = params.nFrameHeight;
+    }
+
+    // we need stride and slice-height to be non-zero and sensible. These values were chosen to
+    // prevent integer overflows further down the line, and do not indicate support for
+    // 32kx32k video.
+    if (params.nStride == 0 || params.nSliceHeight == 0
+            || params.nStride > 32768 || params.nSliceHeight > 32768) {
+        ALOGW("cannot describe color format 0x%x = %d with stride=%u and sliceHeight=%u",
+                fmt, fmt, params.nStride, params.nSliceHeight);
+        return false;
+    }
+
+    // set-up YUV format
+    image.mType = MediaImage2::MEDIA_IMAGE_TYPE_YUV;
+    image.mNumPlanes = 3;
+    image.mBitDepth = 8;
+    image.mBitDepthAllocated = 8;
+    image.mPlane[image.Y].mOffset = 0;
+    image.mPlane[image.Y].mColInc = 1;
+    image.mPlane[image.Y].mRowInc = params.nStride;
+    image.mPlane[image.Y].mHorizSubsampling = 1;
+    image.mPlane[image.Y].mVertSubsampling = 1;
+
+    switch ((int)fmt) {
+        case HAL_PIXEL_FORMAT_YV12:
+            if (params.bUsingNativeBuffers) {
+                size_t ystride = align(params.nStride, 16);
+                size_t cstride = align(params.nStride / 2, 16);
+                image.mPlane[image.Y].mRowInc = ystride;
+
+                image.mPlane[image.V].mOffset = ystride * params.nSliceHeight;
+                image.mPlane[image.V].mColInc = 1;
+                image.mPlane[image.V].mRowInc = cstride;
+                image.mPlane[image.V].mHorizSubsampling = 2;
+                image.mPlane[image.V].mVertSubsampling = 2;
+
+                image.mPlane[image.U].mOffset = image.mPlane[image.V].mOffset
+                        + (cstride * params.nSliceHeight / 2);
+                image.mPlane[image.U].mColInc = 1;
+                image.mPlane[image.U].mRowInc = cstride;
+                image.mPlane[image.U].mHorizSubsampling = 2;
+                image.mPlane[image.U].mVertSubsampling = 2;
+                break;
+            } else {
+                // fall through as YV12 is used for YUV420Planar by some codecs
+            }
+
+        case OMX_COLOR_FormatYUV420Planar:
+        case OMX_COLOR_FormatYUV420PackedPlanar:
+            image.mPlane[image.U].mOffset = params.nStride * params.nSliceHeight;
+            image.mPlane[image.U].mColInc = 1;
+            image.mPlane[image.U].mRowInc = params.nStride / 2;
+            image.mPlane[image.U].mHorizSubsampling = 2;
+            image.mPlane[image.U].mVertSubsampling = 2;
+
+            image.mPlane[image.V].mOffset = image.mPlane[image.U].mOffset
+                    + (params.nStride * params.nSliceHeight / 4);
+            image.mPlane[image.V].mColInc = 1;
+            image.mPlane[image.V].mRowInc = params.nStride / 2;
+            image.mPlane[image.V].mHorizSubsampling = 2;
+            image.mPlane[image.V].mVertSubsampling = 2;
+            break;
+
+        case OMX_COLOR_FormatYUV420SemiPlanar:
+            // FIXME: NV21 for sw-encoder, NV12 for decoder and hw-encoder
+        case OMX_COLOR_FormatYUV420PackedSemiPlanar:
+            // NV12
+            image.mPlane[image.U].mOffset = params.nStride * params.nSliceHeight;
+            image.mPlane[image.U].mColInc = 2;
+            image.mPlane[image.U].mRowInc = params.nStride;
+            image.mPlane[image.U].mHorizSubsampling = 2;
+            image.mPlane[image.U].mVertSubsampling = 2;
+
+            image.mPlane[image.V].mOffset = image.mPlane[image.U].mOffset + 1;
+            image.mPlane[image.V].mColInc = 2;
+            image.mPlane[image.V].mRowInc = params.nStride;
+            image.mPlane[image.V].mHorizSubsampling = 2;
+            image.mPlane[image.V].mVertSubsampling = 2;
+            break;
+
+        default:
+            TRESPASS();
+    }
+    return true;
+}
+
+bool DescribeColorFormat(
+        const sp<IOMXNode> &omxNode,
+        DescribeColorFormat2Params &describeParams)
+{
+    OMX_INDEXTYPE describeColorFormatIndex;
+    if (omxNode->getExtensionIndex(
+            "OMX.google.android.index.describeColorFormat",
+            &describeColorFormatIndex) == OK) {
+        DescribeColorFormatParams describeParamsV1(describeParams);
+        if (omxNode->getParameter(
+                describeColorFormatIndex,
+                &describeParamsV1, sizeof(describeParamsV1)) == OK) {
+            describeParams.initFromV1(describeParamsV1);
+            return describeParams.sMediaImage.mType != MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
+        }
+    } else if (omxNode->getExtensionIndex(
+            "OMX.google.android.index.describeColorFormat2", &describeColorFormatIndex) == OK
+               && omxNode->getParameter(
+                       describeColorFormatIndex, &describeParams, sizeof(describeParams)) == OK) {
+        return describeParams.sMediaImage.mType != MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
+    }
+
+    return DescribeDefaultColorFormat(describeParams);
+}
+
+// static
+bool IsFlexibleColorFormat(
+         const sp<IOMXNode> &omxNode,
+         uint32_t colorFormat, bool usingNativeBuffers, OMX_U32 *flexibleEquivalent) {
+    DescribeColorFormat2Params describeParams;
+    InitOMXParams(&describeParams);
+    describeParams.eColorFormat = (OMX_COLOR_FORMATTYPE)colorFormat;
+    // reasonable dummy values
+    describeParams.nFrameWidth = 128;
+    describeParams.nFrameHeight = 128;
+    describeParams.nStride = 128;
+    describeParams.nSliceHeight = 128;
+    describeParams.bUsingNativeBuffers = (OMX_BOOL)usingNativeBuffers;
+
+    CHECK(flexibleEquivalent != NULL);
+
+    if (!DescribeColorFormat(omxNode, describeParams)) {
+        return false;
+    }
+
+    const MediaImage2 &img = describeParams.sMediaImage;
+    if (img.mType == MediaImage2::MEDIA_IMAGE_TYPE_YUV) {
+        if (img.mNumPlanes != 3
+                || img.mPlane[img.Y].mHorizSubsampling != 1
+                || img.mPlane[img.Y].mVertSubsampling != 1) {
+            return false;
+        }
+
+        // YUV 420
+        if (img.mPlane[img.U].mHorizSubsampling == 2
+                && img.mPlane[img.U].mVertSubsampling == 2
+                && img.mPlane[img.V].mHorizSubsampling == 2
+                && img.mPlane[img.V].mVertSubsampling == 2) {
+            // possible flexible YUV420 format
+            if (img.mBitDepth <= 8) {
+               *flexibleEquivalent = OMX_COLOR_FormatYUV420Flexible;
+               return true;
+            }
+        }
+    }
+    return false;
+}
+
 }  // namespace android
 
diff --git a/media/libstagefright/omx/OMXUtils.h b/media/libstagefright/omx/OMXUtils.h
index 0c5e537..401d64b 100644
--- a/media/libstagefright/omx/OMXUtils.h
+++ b/media/libstagefright/omx/OMXUtils.h
@@ -17,6 +17,8 @@
 #ifndef OMX_UTILS_H_
 #define OMX_UTILS_H_
 
+#include <media/IOMX.h>
+
 /***** DO NOT USE THIS INCLUDE!!! INTERAL ONLY!!! UNLESS YOU RESIDE IN media/libstagefright *****/
 
 // OMXUtils contains omx-specific utility functions for stagefright/omx library
@@ -36,6 +38,43 @@
 
 status_t StatusFromOMXError(OMX_ERRORTYPE err);
 
+const char *GetComponentRole(bool isEncoder, const char *mime);
+status_t SetComponentRole(const sp<IOMXNode> &omxNode, const char *role);
+
+struct DescribeColorFormat2Params;
+
+bool IsFlexibleColorFormat(
+        const sp<IOMXNode> &omxNode, uint32_t colorFormat,
+        bool usingNativeBuffers, OMX_U32 *flexibleEquivalent);
+bool DescribeDefaultColorFormat(DescribeColorFormat2Params &describeParams);
+bool DescribeColorFormat(
+        const sp<IOMXNode> &omxNode,
+        DescribeColorFormat2Params &describeParams);
+
+inline static const char *asString(MetadataBufferType i, const char *def = "??") {
+    using namespace android;
+    switch (i) {
+        case kMetadataBufferTypeCameraSource:   return "CameraSource";
+        case kMetadataBufferTypeGrallocSource:  return "GrallocSource";
+        case kMetadataBufferTypeANWBuffer:      return "ANWBuffer";
+        case kMetadataBufferTypeNativeHandleSource: return "NativeHandleSource";
+        case kMetadataBufferTypeInvalid:        return "Invalid";
+        default:                                return def;
+    }
+}
+
+inline static const char *asString(IOMX::PortMode mode, const char *def = "??") {
+    using namespace android;
+    switch (mode) {
+        case IOMX::kPortModePresetByteBuffer:   return "PresetByteBuffer";
+        case IOMX::kPortModePresetANWBuffer:    return "PresetANWBuffer";
+        case IOMX::kPortModePresetSecureBuffer: return "PresetSecureBuffer";
+        case IOMX::kPortModeDynamicANWBuffer:   return "DynamicANWBuffer";
+        case IOMX::kPortModeDynamicNativeHandle:return "DynamicNativeHandle";
+        default:                                return def;
+    }
+}
+
 }  // namespace android
 
 #endif
diff --git a/media/libstagefright/omx/SimpleSoftOMXComponent.cpp b/media/libstagefright/omx/SimpleSoftOMXComponent.cpp
index 76cbbc4..d89cb99 100644
--- a/media/libstagefright/omx/SimpleSoftOMXComponent.cpp
+++ b/media/libstagefright/omx/SimpleSoftOMXComponent.cpp
@@ -77,19 +77,34 @@
     switch (index) {
         case OMX_IndexParamPortDefinition:
         {
-            portIndex = ((OMX_PARAM_PORTDEFINITIONTYPE *)params)->nPortIndex;
+            const OMX_PARAM_PORTDEFINITIONTYPE *portDefs =
+                    (const OMX_PARAM_PORTDEFINITIONTYPE *) params;
+            if (!isValidOMXParam(portDefs)) {
+                return false;
+            }
+            portIndex = portDefs->nPortIndex;
             break;
         }
 
         case OMX_IndexParamAudioPcm:
         {
-            portIndex = ((OMX_AUDIO_PARAM_PCMMODETYPE *)params)->nPortIndex;
+            const OMX_AUDIO_PARAM_PCMMODETYPE *pcmMode =
+                    (const OMX_AUDIO_PARAM_PCMMODETYPE *) params;
+            if (!isValidOMXParam(pcmMode)) {
+                return false;
+            }
+            portIndex = pcmMode->nPortIndex;
             break;
         }
 
         case OMX_IndexParamAudioAac:
         {
-            portIndex = ((OMX_AUDIO_PARAM_AACPROFILETYPE *)params)->nPortIndex;
+            const OMX_AUDIO_PARAM_AACPROFILETYPE *aacMode =
+                    (const OMX_AUDIO_PARAM_AACPROFILETYPE *) params;
+            if (!isValidOMXParam(aacMode)) {
+                return false;
+            }
+            portIndex = aacMode->nPortIndex;
             break;
         }
 
diff --git a/media/libstagefright/omx/SoftOMXPlugin.cpp b/media/libstagefright/omx/SoftOMXPlugin.cpp
old mode 100755
new mode 100644
index 0f9c00c..a773ca2
--- a/media/libstagefright/omx/SoftOMXPlugin.cpp
+++ b/media/libstagefright/omx/SoftOMXPlugin.cpp
@@ -56,6 +56,7 @@
     { "OMX.google.vp8.decoder", "vpxdec", "video_decoder.vp8" },
     { "OMX.google.vp9.decoder", "vpxdec", "video_decoder.vp9" },
     { "OMX.google.vp8.encoder", "vpxenc", "video_encoder.vp8" },
+    { "OMX.google.vp9.encoder", "vpxenc", "video_encoder.vp9" },
     { "OMX.google.raw.decoder", "rawdec", "audio_decoder.raw" },
     { "OMX.google.flac.encoder", "flacenc", "audio_encoder.flac" },
     { "OMX.google.gsm.decoder", "gsmdec", "audio_decoder.gsm" },
diff --git a/media/libstagefright/omx/SoftVideoDecoderOMXComponent.cpp b/media/libstagefright/omx/SoftVideoDecoderOMXComponent.cpp
index 409cef7..920dd18 100644
--- a/media/libstagefright/omx/SoftVideoDecoderOMXComponent.cpp
+++ b/media/libstagefright/omx/SoftVideoDecoderOMXComponent.cpp
@@ -62,6 +62,7 @@
         mCropWidth(width),
         mCropHeight(height),
         mOutputPortSettingsChange(NONE),
+        mUpdateColorAspects(false),
         mMinInputBufferSize(384), // arbitrary, using one uncompressed macroblock
         mMinCompressionRatio(1),  // max input size is normally the output size
         mComponentRole(componentRole),
@@ -430,10 +431,6 @@
                 return OMX_ErrorBadPortIndex;
             }
 
-            if (formatParams->nIndex != 0) {
-                return OMX_ErrorNoMore;
-            }
-
             if (formatParams->nPortIndex == kInputPortIndex) {
                 if (formatParams->eCompressionFormat != mCodingType
                         || formatParams->eColorFormat != OMX_COLOR_FormatUnused) {
diff --git a/media/libstagefright/omx/SoftVideoEncoderOMXComponent.cpp b/media/libstagefright/omx/SoftVideoEncoderOMXComponent.cpp
index 0f9c118..2aa88af 100644
--- a/media/libstagefright/omx/SoftVideoEncoderOMXComponent.cpp
+++ b/media/libstagefright/omx/SoftVideoEncoderOMXComponent.cpp
@@ -30,8 +30,11 @@
 #include <media/stagefright/foundation/AUtils.h>
 #include <media/stagefright/MediaDefs.h>
 
-#include <ui/GraphicBuffer.h>
+#include <ui/Fence.h>
 #include <ui/GraphicBufferMapper.h>
+#include <ui/Rect.h>
+
+#include <hardware/gralloc.h>
 
 #include <OMX_IndexExt.h>
 
@@ -480,18 +483,25 @@
             unsigned green = src[greenOffset];
             unsigned blue  = src[blueOffset];
 
-            // using ITU-R BT.601 conversion matrix
+            // Using ITU-R BT.601-7 (03/2011)
+            //   2.5.1: Ey'  = ( 0.299*R + 0.587*G + 0.114*B)
+            //   2.5.2: ECr' = ( 0.701*R - 0.587*G - 0.114*B) / 1.402
+            //          ECb' = (-0.299*R - 0.587*G + 0.886*B) / 1.772
+            //   2.5.3: Y  = 219 * Ey'  +  16
+            //          Cr = 224 * ECr' + 128
+            //          Cb = 224 * ECb' + 128
+
             unsigned luma =
-                ((red * 66 + green * 129 + blue * 25) >> 8) + 16;
+                ((red * 65 + green * 129 + blue * 25 + 128) >> 8) + 16;
 
             dstY[x] = luma;
 
             if ((x & 1) == 0 && (y & 1) == 0) {
                 unsigned U =
-                    ((-red * 38 - green * 74 + blue * 112) >> 8) + 128;
+                    ((-red * 38 - green * 74 + blue * 112 + 128) >> 8) + 128;
 
                 unsigned V =
-                    ((red * 112 - green * 94 - blue * 18) >> 8) + 128;
+                    ((red * 112 - green * 94 - blue * 18 + 128) >> 8) + 128;
 
                 dstU[x >> 1] = U;
                 dstV[x >> 1] = V;
@@ -541,6 +551,7 @@
         srcVStride = buffer->height;
         // convert stride from pixels to bytes
         if (format != HAL_PIXEL_FORMAT_YV12 &&
+            format != HAL_PIXEL_FORMAT_YCrCb_420_SP &&
             format != HAL_PIXEL_FORMAT_YCbCr_420_888) {
             // TODO do we need to support other formats?
             srcStride *= 4;
@@ -603,26 +614,24 @@
 
     switch (format) {
         case HAL_PIXEL_FORMAT_YV12:  // YCrCb / YVU planar
-            // convert to flex YUV
             ycbcr.y = bits;
             ycbcr.cr = (uint8_t *)bits + srcStride * srcVStride;
             ycbcr.cb = (uint8_t *)ycbcr.cr + (srcStride >> 1) * (srcVStride >> 1);
             ycbcr.chroma_step = 1;
-            ycbcr.cstride = srcVStride >> 1;
-            ycbcr.ystride = srcVStride;
+            ycbcr.cstride = srcStride >> 1;
+            ycbcr.ystride = srcStride;
             ConvertFlexYUVToPlanar(dst, dstStride, dstVStride, &ycbcr, width, height);
             break;
         case HAL_PIXEL_FORMAT_YCrCb_420_SP:  // YCrCb / YVU semiplanar, NV21
-            // convert to flex YUV
             ycbcr.y = bits;
             ycbcr.cr = (uint8_t *)bits + srcStride * srcVStride;
             ycbcr.cb = (uint8_t *)ycbcr.cr + 1;
             ycbcr.chroma_step = 2;
-            ycbcr.cstride = srcVStride;
-            ycbcr.ystride = srcVStride;
+            ycbcr.cstride = srcStride;
+            ycbcr.ystride = srcStride;
             ConvertFlexYUVToPlanar(dst, dstStride, dstVStride, &ycbcr, width, height);
             break;
-        case HAL_PIXEL_FORMAT_YCbCr_420_888:
+        case HAL_PIXEL_FORMAT_YCbCr_420_888:  // YCbCr / YUV planar
             ConvertFlexYUVToPlanar(dst, dstStride, dstVStride, &ycbcr, width, height);
             break;
         case HAL_PIXEL_FORMAT_RGBX_8888:
diff --git a/media/libstagefright/omx/tests/Android.mk b/media/libstagefright/omx/tests/Android.mk
index 02e97f1..5941b94 100644
--- a/media/libstagefright/omx/tests/Android.mk
+++ b/media/libstagefright/omx/tests/Android.mk
@@ -2,17 +2,28 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES =       \
-	OMXHarness.cpp  \
+        OMXHarness.cpp  \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libbinder libmedia libutils liblog libstagefright_foundation
+        libstagefright \
+        libbinder \
+        libmedia \
+        libutils \
+        liblog \
+        libstagefright_foundation \
+        libcutils \
+        libhidlbase \
+        libhidlmemory \
+        android.hidl.allocator@1.0 \
+        android.hidl.memory@1.0 \
+        android.hardware.media.omx@1.0 \
 
 LOCAL_C_INCLUDES := \
-	$(TOP)/frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
+        $(TOP)/frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax \
+        $(TOP)/system/libhidl/base/include \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE := omx_tests
 
@@ -29,16 +40,15 @@
 LOCAL_MODULE_TAGS := tests
 
 LOCAL_SRC_FILES := \
-	FrameDropper_test.cpp \
+        FrameDropper_test.cpp \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright_omx \
-	libutils \
+        libstagefright_omx \
+        libutils \
 
 LOCAL_C_INCLUDES := \
-	frameworks/av/media/libstagefright/omx \
+        frameworks/av/media/libstagefright/omx \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 include $(BUILD_NATIVE_TEST)
diff --git a/media/libstagefright/omx/tests/OMXHarness.cpp b/media/libstagefright/omx/tests/OMXHarness.cpp
index 50bb0de..fcc44d8 100644
--- a/media/libstagefright/omx/tests/OMXHarness.cpp
+++ b/media/libstagefright/omx/tests/OMXHarness.cpp
@@ -38,13 +38,35 @@
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/SimpleDecodingSource.h>
+#include <media/OMXBuffer.h>
+#include <android/hardware/media/omx/1.0/IOmx.h>
+#include <media/omx/1.0/WOmx.h>
 
 #define DEFAULT_TIMEOUT         500000
 
 namespace android {
 
+/////////////////////////////////////////////////////////////////////
+
+struct Harness::CodecObserver : public BnOMXObserver {
+    CodecObserver(const sp<Harness> &harness, int32_t gen)
+            : mHarness(harness), mGeneration(gen) {}
+
+    void onMessages(const std::list<omx_message> &messages) override;
+
+private:
+    sp<Harness> mHarness;
+    int32_t mGeneration;
+};
+
+void Harness::CodecObserver::onMessages(const std::list<omx_message> &messages) {
+    mHarness->handleMessages(mGeneration, messages);
+}
+
+/////////////////////////////////////////////////////////////////////
+
 Harness::Harness()
-    : mInitCheck(NO_INIT) {
+    : mInitCheck(NO_INIT), mUseTreble(false) {
     mInitCheck = initOMX();
 }
 
@@ -56,26 +78,36 @@
 }
 
 status_t Harness::initOMX() {
-    sp<IServiceManager> sm = defaultServiceManager();
-    sp<IBinder> binder = sm->getService(String16("media.codec"));
-    sp<IMediaCodecService> service = interface_cast<IMediaCodecService>(binder);
-    mOMX = service->getOMX();
+    if (property_get_bool("persist.media.treble_omx", true)) {
+        using namespace ::android::hardware::media::omx::V1_0;
+        sp<IOmx> tOmx = IOmx::getService();
+        if (tOmx == nullptr) {
+            return NO_INIT;
+        }
+        mOMX = new utils::LWOmx(tOmx);
+        mUseTreble = true;
+    } else {
+        sp<IServiceManager> sm = defaultServiceManager();
+        sp<IBinder> binder = sm->getService(String16("media.codec"));
+        sp<IMediaCodecService> service = interface_cast<IMediaCodecService>(binder);
+        mOMX = service->getOMX();
+        mUseTreble = false;
+    }
 
     return mOMX != 0 ? OK : NO_INIT;
 }
 
-void Harness::onMessages(const std::list<omx_message> &messages) {
+void Harness::handleMessages(int32_t gen, const std::list<omx_message> &messages) {
     Mutex::Autolock autoLock(mLock);
     for (std::list<omx_message>::const_iterator it = messages.cbegin(); it != messages.cend(); ) {
         mMessageQueue.push_back(*it++);
+        mLastMsgGeneration = gen;
     }
     mMessageAddedCondition.signal();
 }
 
-status_t Harness::dequeueMessageForNode(
-        IOMX::node_id node, omx_message *msg, int64_t timeoutUs) {
-    return dequeueMessageForNodeIgnoringBuffers(
-            node, NULL, NULL, msg, timeoutUs);
+status_t Harness::dequeueMessageForNode(omx_message *msg, int64_t timeoutUs) {
+    return dequeueMessageForNodeIgnoringBuffers(NULL, NULL, msg, timeoutUs);
 }
 
 // static
@@ -120,7 +152,6 @@
 }
 
 status_t Harness::dequeueMessageForNodeIgnoringBuffers(
-        IOMX::node_id node,
         Vector<Buffer> *inputBuffers,
         Vector<Buffer> *outputBuffers,
         omx_message *msg, int64_t timeoutUs) {
@@ -128,21 +159,22 @@
 
     for (;;) {
         Mutex::Autolock autoLock(mLock);
+        // Messages are queued in batches, if the last batch queued is
+        // from a node that already expired, discard those messages.
+        if (mLastMsgGeneration < mCurGeneration) {
+            mMessageQueue.clear();
+        }
         List<omx_message>::iterator it = mMessageQueue.begin();
         while (it != mMessageQueue.end()) {
-            if ((*it).node == node) {
-                if (handleBufferMessage(*it, inputBuffers, outputBuffers)) {
-                    it = mMessageQueue.erase(it);
-                    continue;
-                }
-
-                *msg = *it;
-                mMessageQueue.erase(it);
-
-                return OK;
+            if (handleBufferMessage(*it, inputBuffers, outputBuffers)) {
+                it = mMessageQueue.erase(it);
+                continue;
             }
 
-            ++it;
+            *msg = *it;
+            mMessageQueue.erase(it);
+
+            return OK;
         }
 
         status_t err = (timeoutUs < 0)
@@ -158,16 +190,15 @@
 }
 
 status_t Harness::getPortDefinition(
-        IOMX::node_id node, OMX_U32 portIndex,
-        OMX_PARAM_PORTDEFINITIONTYPE *def) {
+        OMX_U32 portIndex, OMX_PARAM_PORTDEFINITIONTYPE *def) {
     def->nSize = sizeof(*def);
     def->nVersion.s.nVersionMajor = 1;
     def->nVersion.s.nVersionMinor = 0;
     def->nVersion.s.nRevision = 0;
     def->nVersion.s.nStep = 0;
     def->nPortIndex = portIndex;
-    return mOMX->getParameter(
-            node, OMX_IndexParamPortDefinition, def, sizeof(*def));
+    return mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, def, sizeof(*def));
 }
 
 #define EXPECT(condition, info) \
@@ -179,24 +210,37 @@
     EXPECT((err) == OK, info " failed")
 
 status_t Harness::allocatePortBuffers(
-        const sp<MemoryDealer> &dealer,
-        IOMX::node_id node, OMX_U32 portIndex,
-        Vector<Buffer> *buffers) {
+        OMX_U32 portIndex, Vector<Buffer> *buffers) {
     buffers->clear();
 
     OMX_PARAM_PORTDEFINITIONTYPE def;
-    status_t err = getPortDefinition(node, portIndex, &def);
+    status_t err = getPortDefinition(portIndex, &def);
     EXPECT_SUCCESS(err, "getPortDefinition");
 
     for (OMX_U32 i = 0; i < def.nBufferCountActual; ++i) {
         Buffer buffer;
-        buffer.mMemory = dealer->allocate(def.nBufferSize);
         buffer.mFlags = 0;
-        CHECK(buffer.mMemory != NULL);
+        if (mUseTreble) {
+            bool success;
+            auto transStatus = mAllocator->allocate(def.nBufferSize,
+                    [&success, &buffer](
+                            bool s,
+                            hidl_memory const& m) {
+                        success = s;
+                        buffer.mHidlMemory = m;
+                    });
+            EXPECT(transStatus.isOk(),
+                    "Cannot call allocator");
+            EXPECT(success,
+                    "Cannot allocate memory");
+            err = mOMXNode->useBuffer(portIndex, buffer.mHidlMemory, &buffer.mID);
+        } else {
+            buffer.mMemory = mDealer->allocate(def.nBufferSize);
+            CHECK(buffer.mMemory != NULL);
+            err = mOMXNode->useBuffer(portIndex, buffer.mMemory, &buffer.mID);
+        }
 
-        err = mOMX->allocateBufferWithBackup(
-                node, portIndex, buffer.mMemory, &buffer.mID, buffer.mMemory->size());
-        EXPECT_SUCCESS(err, "allocateBuffer");
+        EXPECT_SUCCESS(err, "useBuffer");
 
         buffers->push(buffer);
     }
@@ -204,7 +248,7 @@
     return OK;
 }
 
-status_t Harness::setRole(IOMX::node_id node, const char *role) {
+status_t Harness::setRole(const char *role) {
     OMX_PARAM_COMPONENTROLETYPE params;
     params.nSize = sizeof(params);
     params.nVersion.s.nVersionMajor = 1;
@@ -214,31 +258,31 @@
     strncpy((char *)params.cRole, role, OMX_MAX_STRINGNAME_SIZE - 1);
     params.cRole[OMX_MAX_STRINGNAME_SIZE - 1] = '\0';
 
-    return mOMX->setParameter(
-            node, OMX_IndexParamStandardComponentRole,
+    return mOMXNode->setParameter(
+            OMX_IndexParamStandardComponentRole,
             &params, sizeof(params));
 }
 
 struct NodeReaper {
-    NodeReaper(const sp<Harness> &harness, IOMX::node_id node)
+    NodeReaper(const sp<Harness> &harness, const sp<IOMXNode> &omxNode)
         : mHarness(harness),
-          mNode(node) {
+          mOMXNode(omxNode) {
     }
 
     ~NodeReaper() {
-        if (mNode != 0) {
-            mHarness->mOMX->freeNode(mNode);
-            mNode = 0;
+        if (mOMXNode != 0) {
+            mOMXNode->freeNode();
+            mOMXNode = NULL;
         }
     }
 
     void disarm() {
-        mNode = 0;
+        mOMXNode = NULL;
     }
 
 private:
     sp<Harness> mHarness;
-    IOMX::node_id mNode;
+    sp<IOMXNode> mOMXNode;
 
     NodeReaper(const NodeReaper &);
     NodeReaper &operator=(const NodeReaper &);
@@ -263,24 +307,30 @@
         return OK;
     }
 
-    sp<MemoryDealer> dealer = new MemoryDealer(16 * 1024 * 1024, "OMXHarness");
-    IOMX::node_id node;
+    if (mUseTreble) {
+        mAllocator = IAllocator::getService("ashmem");
+        EXPECT(mAllocator != nullptr,
+                "Cannot obtain hidl AshmemAllocator");
+    } else {
+        mDealer = new MemoryDealer(16 * 1024 * 1024, "OMXHarness");
+    }
 
-    status_t err =
-        mOMX->allocateNode(componentName, this, NULL, &node);
+    sp<CodecObserver> observer = new CodecObserver(this, ++mCurGeneration);
+
+    status_t err = mOMX->allocateNode(componentName, observer, &mOMXNode);
     EXPECT_SUCCESS(err, "allocateNode");
 
-    NodeReaper reaper(this, node);
+    NodeReaper reaper(this, mOMXNode);
 
-    err = setRole(node, componentRole);
+    err = setRole(componentRole);
     EXPECT_SUCCESS(err, "setRole");
 
     // Initiate transition Loaded->Idle
-    err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateIdle);
+    err = mOMXNode->sendCommand(OMX_CommandStateSet, OMX_StateIdle);
     EXPECT_SUCCESS(err, "sendCommand(go-to-Idle)");
 
     omx_message msg;
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     // Make sure node doesn't just transition to idle before we are done
     // allocating all input and output buffers.
     EXPECT(err == TIMED_OUT,
@@ -289,17 +339,17 @@
 
     // Now allocate buffers.
     Vector<Buffer> inputBuffers;
-    err = allocatePortBuffers(dealer, node, 0, &inputBuffers);
+    err = allocatePortBuffers(0, &inputBuffers);
     EXPECT_SUCCESS(err, "allocatePortBuffers(input)");
 
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     CHECK_EQ(err, (status_t)TIMED_OUT);
 
     Vector<Buffer> outputBuffers;
-    err = allocatePortBuffers(dealer, node, 1, &outputBuffers);
+    err = allocatePortBuffers(1, &outputBuffers);
     EXPECT_SUCCESS(err, "allocatePortBuffers(output)");
 
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     EXPECT(err == OK
             && msg.type == omx_message::EVENT
             && msg.u.event_data.event == OMX_EventCmdComplete
@@ -309,10 +359,10 @@
            "after all input and output buffers were allocated.");
 
     // Initiate transition Idle->Executing
-    err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateExecuting);
+    err = mOMXNode->sendCommand(OMX_CommandStateSet, OMX_StateExecuting);
     EXPECT_SUCCESS(err, "sendCommand(go-to-Executing)");
 
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     EXPECT(err == OK
             && msg.type == omx_message::EVENT
             && msg.u.event_data.event == OMX_EventCmdComplete
@@ -322,17 +372,17 @@
            "executing state.");
 
     for (size_t i = 0; i < outputBuffers.size(); ++i) {
-        err = mOMX->fillBuffer(node, outputBuffers[i].mID);
+        err = mOMXNode->fillBuffer(outputBuffers[i].mID, OMXBuffer::sPreset);
         EXPECT_SUCCESS(err, "fillBuffer");
 
         outputBuffers.editItemAt(i).mFlags |= kBufferBusy;
     }
 
-    err = mOMX->sendCommand(node, OMX_CommandFlush, 1);
+    err = mOMXNode->sendCommand(OMX_CommandFlush, 1);
     EXPECT_SUCCESS(err, "sendCommand(flush-output-port)");
 
     err = dequeueMessageForNodeIgnoringBuffers(
-            node, &inputBuffers, &outputBuffers, &msg, DEFAULT_TIMEOUT);
+            &inputBuffers, &outputBuffers, &msg, DEFAULT_TIMEOUT);
     EXPECT(err == OK
             && msg.type == omx_message::EVENT
             && msg.u.event_data.event == OMX_EventCmdComplete
@@ -347,18 +397,18 @@
     }
 
     for (size_t i = 0; i < outputBuffers.size(); ++i) {
-        err = mOMX->fillBuffer(node, outputBuffers[i].mID);
+        err = mOMXNode->fillBuffer(outputBuffers[i].mID, OMXBuffer::sPreset);
         EXPECT_SUCCESS(err, "fillBuffer");
 
         outputBuffers.editItemAt(i).mFlags |= kBufferBusy;
     }
 
     // Initiate transition Executing->Idle
-    err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateIdle);
+    err = mOMXNode->sendCommand(OMX_CommandStateSet, OMX_StateIdle);
     EXPECT_SUCCESS(err, "sendCommand(go-to-Idle)");
 
     err = dequeueMessageForNodeIgnoringBuffers(
-            node, &inputBuffers, &outputBuffers, &msg, DEFAULT_TIMEOUT);
+            &inputBuffers, &outputBuffers, &msg, DEFAULT_TIMEOUT);
     EXPECT(err == OK
             && msg.type == omx_message::EVENT
             && msg.u.event_data.event == OMX_EventCmdComplete
@@ -382,28 +432,28 @@
     }
 
     // Initiate transition Idle->Loaded
-    err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateLoaded);
+    err = mOMXNode->sendCommand(OMX_CommandStateSet, OMX_StateLoaded);
     EXPECT_SUCCESS(err, "sendCommand(go-to-Loaded)");
 
     // Make sure node doesn't just transition to loaded before we are done
     // freeing all input and output buffers.
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     CHECK_EQ(err, (status_t)TIMED_OUT);
 
     for (size_t i = 0; i < inputBuffers.size(); ++i) {
-        err = mOMX->freeBuffer(node, 0, inputBuffers[i].mID);
+        err = mOMXNode->freeBuffer(0, inputBuffers[i].mID);
         EXPECT_SUCCESS(err, "freeBuffer");
     }
 
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     CHECK_EQ(err, (status_t)TIMED_OUT);
 
     for (size_t i = 0; i < outputBuffers.size(); ++i) {
-        err = mOMX->freeBuffer(node, 1, outputBuffers[i].mID);
+        err = mOMXNode->freeBuffer(1, outputBuffers[i].mID);
         EXPECT_SUCCESS(err, "freeBuffer");
     }
 
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     EXPECT(err == OK
             && msg.type == omx_message::EVENT
             && msg.u.event_data.event == OMX_EventCmdComplete
@@ -412,12 +462,12 @@
            "Component did not properly transition to from idle to "
            "loaded state after freeing all input and output buffers.");
 
-    err = mOMX->freeNode(node);
+    err = mOMXNode->freeNode();
     EXPECT_SUCCESS(err, "freeNode");
 
     reaper.disarm();
 
-    node = 0;
+    mOMXNode = NULL;
 
     return OK;
 }
@@ -784,7 +834,6 @@
     using namespace android;
 
     android::ProcessState::self()->startThreadPool();
-    DataSource::RegisterDefaultSniffers();
 
     const char *me = argv[0];
 
diff --git a/media/libstagefright/omx/tests/OMXHarness.h b/media/libstagefright/omx/tests/OMXHarness.h
index 1ebf3aa..4fc0f79 100644
--- a/media/libstagefright/omx/tests/OMXHarness.h
+++ b/media/libstagefright/omx/tests/OMXHarness.h
@@ -23,19 +23,25 @@
 #include <utils/Vector.h>
 #include <utils/threads.h>
 
+#include <binder/MemoryDealer.h>
+#include <android/hidl/allocator/1.0/IAllocator.h>
+#include <android/hidl/memory/1.0/IMemory.h>
 #include <OMX_Component.h>
 
 namespace android {
 
 class MemoryDealer;
 
-struct Harness : public BnOMXObserver {
+struct Harness : public RefBase {
+    typedef hidl::memory::V1_0::IMemory TMemory;
+    typedef hardware::hidl_memory hidl_memory;
     enum BufferFlags {
         kBufferBusy = 1
     };
     struct Buffer {
         IOMX::buffer_id mID;
         sp<IMemory> mMemory;
+        hidl_memory mHidlMemory;
         uint32_t mFlags;
     };
 
@@ -43,25 +49,20 @@
 
     status_t initCheck() const;
 
-    status_t dequeueMessageForNode(
-            IOMX::node_id node, omx_message *msg, int64_t timeoutUs = -1);
+    status_t dequeueMessageForNode(omx_message *msg, int64_t timeoutUs = -1);
 
     status_t dequeueMessageForNodeIgnoringBuffers(
-            IOMX::node_id node,
             Vector<Buffer> *inputBuffers,
             Vector<Buffer> *outputBuffers,
             omx_message *msg, int64_t timeoutUs = -1);
 
     status_t getPortDefinition(
-            IOMX::node_id node, OMX_U32 portIndex,
-            OMX_PARAM_PORTDEFINITIONTYPE *def);
+            OMX_U32 portIndex, OMX_PARAM_PORTDEFINITIONTYPE *def);
 
     status_t allocatePortBuffers(
-            const sp<MemoryDealer> &dealer,
-            IOMX::node_id node, OMX_U32 portIndex,
-            Vector<Buffer> *buffers);
+            OMX_U32 portIndex, Vector<Buffer> *buffers);
 
-    status_t setRole(IOMX::node_id node, const char *role);
+    status_t setRole(const char *role);
 
     status_t testStateTransitions(
             const char *componentName, const char *componentRole);
@@ -74,20 +75,27 @@
 
     status_t testAll();
 
-    virtual void onMessages(const std::list<omx_message> &messages);
-
 protected:
     virtual ~Harness();
 
 private:
+    typedef hidl::allocator::V1_0::IAllocator IAllocator;
+
     friend struct NodeReaper;
+    struct CodecObserver;
 
     Mutex mLock;
 
     status_t mInitCheck;
     sp<IOMX> mOMX;
+    sp<IOMXNode> mOMXNode;
     List<omx_message> mMessageQueue;
     Condition mMessageAddedCondition;
+    int32_t mLastMsgGeneration;
+    int32_t mCurGeneration;
+    bool mUseTreble;
+    sp<MemoryDealer> mDealer;
+    sp<IAllocator> mAllocator;
 
     status_t initOMX();
 
@@ -96,6 +104,8 @@
             Vector<Buffer> *inputBuffers,
             Vector<Buffer> *outputBuffers);
 
+    void handleMessages(int32_t gen, const std::list<omx_message> &messages);
+
     Harness(const Harness &);
     Harness &operator=(const Harness &);
 };
diff --git a/media/libstagefright/rtsp/AAVCAssembler.h b/media/libstagefright/rtsp/AAVCAssembler.h
index bf389ec..e19480c 100644
--- a/media/libstagefright/rtsp/AAVCAssembler.h
+++ b/media/libstagefright/rtsp/AAVCAssembler.h
@@ -29,7 +29,7 @@
 struct AMessage;
 
 struct AAVCAssembler : public ARTPAssembler {
-    AAVCAssembler(const sp<AMessage> &notify);
+    explicit AAVCAssembler(const sp<AMessage> &notify);
 
 protected:
     virtual ~AAVCAssembler();
diff --git a/media/libstagefright/rtsp/AH263Assembler.h b/media/libstagefright/rtsp/AH263Assembler.h
index 2b6c625..1448661 100644
--- a/media/libstagefright/rtsp/AH263Assembler.h
+++ b/media/libstagefright/rtsp/AH263Assembler.h
@@ -29,7 +29,7 @@
 struct AMessage;
 
 struct AH263Assembler : public ARTPAssembler {
-    AH263Assembler(const sp<AMessage> &notify);
+    explicit AH263Assembler(const sp<AMessage> &notify);
 
 protected:
     virtual ~AH263Assembler();
diff --git a/media/libstagefright/rtsp/APacketSource.cpp b/media/libstagefright/rtsp/APacketSource.cpp
index cfafaa7..8ba9e02 100644
--- a/media/libstagefright/rtsp/APacketSource.cpp
+++ b/media/libstagefright/rtsp/APacketSource.cpp
@@ -418,7 +418,7 @@
     if (sessionDesc->getDurationUs(&durationUs)) {
         mFormat->setInt64(kKeyDuration, durationUs);
     } else {
-        mFormat->setInt64(kKeyDuration, 60 * 60 * 1000000ll);
+        mFormat->setInt64(kKeyDuration, -1ll);
     }
 
     mInitCheck = OK;
diff --git a/media/libstagefright/rtsp/ARTPConnection.h b/media/libstagefright/rtsp/ARTPConnection.h
index edbcc35..d5f7c2e 100644
--- a/media/libstagefright/rtsp/ARTPConnection.h
+++ b/media/libstagefright/rtsp/ARTPConnection.h
@@ -32,7 +32,7 @@
         kRegularlyRequestFIR = 2,
     };
 
-    ARTPConnection(uint32_t flags = 0);
+    explicit ARTPConnection(uint32_t flags = 0);
 
     void addStream(
             int rtpSocket, int rtcpSocket,
diff --git a/media/libstagefright/rtsp/ARTPWriter.h b/media/libstagefright/rtsp/ARTPWriter.h
index 62abd0a..3c7042e 100644
--- a/media/libstagefright/rtsp/ARTPWriter.h
+++ b/media/libstagefright/rtsp/ARTPWriter.h
@@ -35,7 +35,7 @@
 class MediaBuffer;
 
 struct ARTPWriter : public MediaWriter {
-    ARTPWriter(int fd);
+    explicit ARTPWriter(int fd);
 
     virtual status_t addSource(const sp<IMediaSource> &source);
     virtual bool reachedEOS();
diff --git a/media/libstagefright/rtsp/ARTSPConnection.h b/media/libstagefright/rtsp/ARTSPConnection.h
index 1fe9c99..8df2676 100644
--- a/media/libstagefright/rtsp/ARTSPConnection.h
+++ b/media/libstagefright/rtsp/ARTSPConnection.h
@@ -33,7 +33,7 @@
 };
 
 struct ARTSPConnection : public AHandler {
-    ARTSPConnection(bool uidValid = false, uid_t uid = 0);
+    explicit ARTSPConnection(bool uidValid = false, uid_t uid = 0);
 
     void connect(const char *url, const sp<AMessage> &reply);
     void disconnect(const sp<AMessage> &reply);
diff --git a/media/libstagefright/rtsp/ASessionDescription.cpp b/media/libstagefright/rtsp/ASessionDescription.cpp
index 8b0331a..325084c 100644
--- a/media/libstagefright/rtsp/ASessionDescription.cpp
+++ b/media/libstagefright/rtsp/ASessionDescription.cpp
@@ -17,7 +17,6 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "ASessionDescription"
 #include <utils/Log.h>
-#include <cutils/log.h>
 
 #include "ASessionDescription.h"
 
@@ -212,7 +211,7 @@
 
     *PT = x;
 
-    char key[32];
+    char key[20];
     snprintf(key, sizeof(key), "a=rtpmap:%lu", x);
     if (findAttribute(index, key, desc)) {
         snprintf(key, sizeof(key), "a=fmtp:%lu", x);
@@ -231,11 +230,8 @@
     *width = 0;
     *height = 0;
 
-    char key[33];
+    char key[20];
     snprintf(key, sizeof(key), "a=framesize:%lu", PT);
-    if (PT > 9999999) {
-        android_errorWriteLog(0x534e4554, "25747670");
-    }
     AString value;
     if (!findAttribute(index, key, &value)) {
         return false;
diff --git a/media/libstagefright/rtsp/Android.mk b/media/libstagefright/rtsp/Android.mk
index bdda19c..3472e49 100644
--- a/media/libstagefright/rtsp/Android.mk
+++ b/media/libstagefright/rtsp/Android.mk
@@ -19,7 +19,7 @@
         ASessionDescription.cpp     \
         SDPLoader.cpp               \
 
-LOCAL_SHARED_LIBRARIES += libcrypto
+LOCAL_SHARED_LIBRARIES += libcrypto libmedia
 
 LOCAL_C_INCLUDES:= \
 	$(TOP)/frameworks/av/media/libstagefright \
@@ -32,7 +32,6 @@
 endif
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
 
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
@@ -58,7 +57,6 @@
 	$(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE_TAGS := optional
diff --git a/media/libstagefright/rtsp/MyHandler.h b/media/libstagefright/rtsp/MyHandler.h
index 76e2e6e..5505aa4 100644
--- a/media/libstagefright/rtsp/MyHandler.h
+++ b/media/libstagefright/rtsp/MyHandler.h
@@ -25,6 +25,7 @@
 #endif
 
 #include <utils/Log.h>
+#include <cutils/properties.h> // for property_get
 
 #include "APacketSource.h"
 #include "ARTPConnection.h"
@@ -807,11 +808,7 @@
                         result = UNKNOWN_ERROR;
                     } else {
                         parsePlayResponse(response);
-
-                        sp<AMessage> timeout = new AMessage('tiou', this);
-                        mCheckTimeoutGeneration++;
-                        timeout->setInt32("tioucheck", mCheckTimeoutGeneration);
-                        timeout->post(kStartupTimeoutUs);
+                        postTimeout();
                     }
                 }
 
@@ -1153,10 +1150,7 @@
 
                         // Post new timeout in order to make sure to use
                         // fake timestamps if no new Sender Reports arrive
-                        sp<AMessage> timeout = new AMessage('tiou', this);
-                        mCheckTimeoutGeneration++;
-                        timeout->setInt32("tioucheck", mCheckTimeoutGeneration);
-                        timeout->post(kStartupTimeoutUs);
+                        postTimeout();
                     }
                 }
 
@@ -1248,10 +1242,7 @@
 
                 // Start new timeoutgeneration to avoid getting timeout
                 // before PLAY response arrive
-                sp<AMessage> timeout = new AMessage('tiou', this);
-                mCheckTimeoutGeneration++;
-                timeout->setInt32("tioucheck", mCheckTimeoutGeneration);
-                timeout->post(kStartupTimeoutUs);
+                postTimeout();
 
                 int64_t timeUs;
                 CHECK(msg->findInt64("time", &timeUs));
@@ -1305,10 +1296,7 @@
 
                         // Post new timeout in order to make sure to use
                         // fake timestamps if no new Sender Reports arrive
-                        sp<AMessage> timeout = new AMessage('tiou', this);
-                        mCheckTimeoutGeneration++;
-                        timeout->setInt32("tioucheck", mCheckTimeoutGeneration);
-                        timeout->post(kStartupTimeoutUs);
+                        postTimeout();
 
                         ssize_t i = response->mHeaders.indexOfKey("rtp-info");
                         CHECK_GE(i, 0);
@@ -1964,6 +1952,16 @@
         msg->post();
     }
 
+    void postTimeout() {
+        sp<AMessage> timeout = new AMessage('tiou', this);
+        mCheckTimeoutGeneration++;
+        timeout->setInt32("tioucheck", mCheckTimeoutGeneration);
+
+        int64_t startupTimeoutUs;
+        startupTimeoutUs = property_get_int64("media.rtsp.timeout-us", kStartupTimeoutUs);
+        timeout->post(startupTimeoutUs);
+    }
+
     DISALLOW_EVIL_CONSTRUCTORS(MyHandler);
 };
 
diff --git a/media/libstagefright/rtsp/rtp_test.cpp b/media/libstagefright/rtsp/rtp_test.cpp
index 24f529b..e612a8d 100644
--- a/media/libstagefright/rtsp/rtp_test.cpp
+++ b/media/libstagefright/rtsp/rtp_test.cpp
@@ -37,8 +37,6 @@
 int main(int argc, char **argv) {
     android::ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
     const char *rtpFilename = NULL;
     const char *rtcpFilename = NULL;
 
diff --git a/media/libstagefright/tests/Android.mk b/media/libstagefright/tests/Android.mk
index d1c9d36..c6963b1 100644
--- a/media/libstagefright/tests/Android.mk
+++ b/media/libstagefright/tests/Android.mk
@@ -33,42 +33,11 @@
 	$(TOP)/frameworks/native/include/media/hardware \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_32_BIT_ONLY := true
 
 include $(BUILD_NATIVE_TEST)
 
-
-include $(CLEAR_VARS)
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-
-LOCAL_MODULE := Utils_test
-
-LOCAL_MODULE_TAGS := tests
-
-LOCAL_SRC_FILES := \
-	Utils_test.cpp \
-
-LOCAL_SHARED_LIBRARIES := \
-	libcutils \
-	liblog \
-	libmedia \
-	libstagefright \
-	libstagefright_foundation \
-	libstagefright_omx \
-
-LOCAL_C_INCLUDES := \
-	frameworks/av/include \
-	frameworks/av/media/libstagefright \
-	frameworks/av/media/libstagefright/include \
-	$(TOP)/frameworks/native/include/media/openmax \
-
-LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-
-include $(BUILD_NATIVE_TEST)
-
 include $(CLEAR_VARS)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
@@ -95,7 +64,6 @@
 LOCAL_32_BIT_ONLY := true
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 include $(BUILD_NATIVE_TEST)
 
diff --git a/media/libstagefright/tests/DummyRecorder.h b/media/libstagefright/tests/DummyRecorder.h
index cd4d0ee..0759777 100644
--- a/media/libstagefright/tests/DummyRecorder.h
+++ b/media/libstagefright/tests/DummyRecorder.h
@@ -43,7 +43,7 @@
     // static function to wrap the actual thread entry point
     static void *threadWrapper(void *pthis);
 
-    DummyRecorder(const sp<MediaSource> &source) : mSource(source)
+    explicit DummyRecorder(const sp<MediaSource> &source) : mSource(source)
                                                     , mStarted(false) {}
     ~DummyRecorder( ) {}
 
diff --git a/media/libstagefright/tests/MediaCodecListOverrides_test.cpp b/media/libstagefright/tests/MediaCodecListOverrides_test.cpp
index ab547be..2599608 100644
--- a/media/libstagefright/tests/MediaCodecListOverrides_test.cpp
+++ b/media/libstagefright/tests/MediaCodecListOverrides_test.cpp
@@ -74,11 +74,11 @@
     void verifyProfileResults(const KeyedVector<AString, CodecSettings> &results) {
         EXPECT_LT(0u, results.size());
         for (size_t i = 0; i < results.size(); ++i) {
-            AString key = results.keyAt(i);
-            CodecSettings settings = results.valueAt(i);
+            const AString &key = results.keyAt(i);
+            const CodecSettings &settings = results.valueAt(i);
             EXPECT_EQ(1u, settings.size());
             EXPECT_TRUE(settings.keyAt(0) == "max-supported-instances");
-            AString valueS = settings.valueAt(0);
+            const AString &valueS = settings.valueAt(0);
             int32_t value = strtol(valueS.c_str(), NULL, 10);
             EXPECT_LT(0, value);
             ALOGV("profileCodecs results %s %s", key.c_str(), valueS.c_str());
diff --git a/media/libstagefright/tests/SurfaceMediaSource_test.cpp b/media/libstagefright/tests/SurfaceMediaSource_test.cpp
index ad1e684..7c464ff 100644
--- a/media/libstagefright/tests/SurfaceMediaSource_test.cpp
+++ b/media/libstagefright/tests/SurfaceMediaSource_test.cpp
@@ -466,7 +466,7 @@
     mr->setVideoSource(videoSource);
     mr->setOutputFormat(outputFormat);
     mr->setVideoEncoder(videoEncoder);
-    mr->setOutputFile(fd, 0, 0);
+    mr->setOutputFile(fd);
     mr->setVideoSize(width, height);
     mr->setVideoFrameRate(fps);
     mr->prepare();
@@ -510,7 +510,7 @@
 
     // Fill the buffer with the a checkerboard pattern
     uint8_t* img = NULL;
-    sp<GraphicBuffer> buf(new GraphicBuffer(anb, false));
+    sp<GraphicBuffer> buf(GraphicBuffer::from(anb));
     buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&img));
     SurfaceMediaSourceTest::fillYV12Buffer(img, width, height, buf->getStride());
     buf->unlock();
@@ -527,7 +527,7 @@
     ASSERT_TRUE(anb != NULL);
 
     // We do not fill the buffer in. Just queue it back.
-    sp<GraphicBuffer> buf(new GraphicBuffer(anb, false));
+    sp<GraphicBuffer> buf(GraphicBuffer::from(anb));
     ASSERT_EQ(NO_ERROR, mANW->queueBuffer(mANW.get(), buf->getNativeBuffer(),
             -1));
 }
@@ -593,7 +593,7 @@
 struct SimpleDummyRecorder {
         sp<MediaSource> mSource;
 
-        SimpleDummyRecorder
+        explicit SimpleDummyRecorder
                 (const sp<MediaSource> &source): mSource(source) {}
 
         status_t start() { return mSource->start();}
diff --git a/media/libstagefright/tests/Utils_test.cpp b/media/libstagefright/tests/Utils_test.cpp
deleted file mode 100644
index d736501..0000000
--- a/media/libstagefright/tests/Utils_test.cpp
+++ /dev/null
@@ -1,284 +0,0 @@
-/*
- * Copyright 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "Utils_test"
-
-#include <gtest/gtest.h>
-#include <utils/String8.h>
-#include <utils/Errors.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/AStringUtils.h>
-#include <media/stagefright/foundation/AUtils.h>
-#include <media/stagefright/Utils.h>
-
-namespace android {
-
-class UtilsTest : public ::testing::Test {
-};
-
-TEST_F(UtilsTest, TestStringUtils) {
-    ASSERT_EQ(AStringUtils::Compare("Audio", "AudioExt", 5, false), 0);
-    ASSERT_EQ(AStringUtils::Compare("Audio", "audiOExt", 5, true), 0);
-    ASSERT_NE(AStringUtils::Compare("Audio", "audioExt", 5, false), 0);
-    ASSERT_NE(AStringUtils::Compare("Audio", "AudiOExt", 5, false), 0);
-
-    ASSERT_LT(AStringUtils::Compare("Audio", "AudioExt", 7, false), 0);
-    ASSERT_LT(AStringUtils::Compare("Audio", "audiOExt", 7, true), 0);
-
-    ASSERT_GT(AStringUtils::Compare("AudioExt", "Audio", 7, false), 0);
-    ASSERT_GT(AStringUtils::Compare("audiOext", "Audio", 7, true), 0);
-
-    ASSERT_LT(AStringUtils::Compare("Audio", "Video", 5, false), 0);
-    ASSERT_LT(AStringUtils::Compare("Audio1", "Audio2", 6, false), 0);
-    ASSERT_LT(AStringUtils::Compare("audio", "VIDEO", 5, true), 0);
-    ASSERT_LT(AStringUtils::Compare("audio1", "AUDIO2", 6, true), 0);
-
-    ASSERT_GT(AStringUtils::Compare("Video", "Audio", 5, false), 0);
-    ASSERT_GT(AStringUtils::Compare("Audio2", "Audio1", 6, false), 0);
-    ASSERT_GT(AStringUtils::Compare("VIDEO", "audio", 5, true), 0);
-    ASSERT_GT(AStringUtils::Compare("AUDIO2", "audio1", 6, true), 0);
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("AudioA", 5, "AudioB", 5, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 6, "AudioA", 5, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "AudioA", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "audiOB", 5, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("AudioA", 5, "audiOB", 5, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 6, "AudioA", 5, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "AudioA", 6, true));
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 6, true));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 6, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 0, true));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 0, false));
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*ring1", 5, "String8", 6, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*ring2", 5, "STRING8", 6, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring4", 5, "StRing8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring5", 5, "StrinG8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring8", 5, "String8", 7, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring8", 5, "String8", 7, true));
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*1", 4, "String8", 6, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*2", 4, "STRING8", 6, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*3", 4, "string8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*4", 4, "StRing8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*5", 4, "AString8", 7, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*6", 4, "AString8", 7, true));
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ng1", 6, "String8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng2", 6, "string8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng3", 6, "StRing8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng4", 6, "StriNg8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng5", 6, "StrinG8", 6, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ng6", 6, "STRING8", 6, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng8", 6, "AString8", 7, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng1", 6, "String16", 7, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ing9", 7, "String8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ringA", 8, "String8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng8", 6, "AString8", 7, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng1", 6, "String16", 7, true));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ing9", 7, "STRING8", 6, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ringA", 8, "String8", 6, true));
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "bestrestroom", 9, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "bestrestrestroom", 13, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*str*stro", 8, "bestrestrestroom", 14, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str*1", 9, "bestrestrestroom", 14, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "beSTReSTRoom", 9, true));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "beSTRestreSTRoom", 13, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*str*stro", 8, "bestreSTReSTRoom", 14, true));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str*1", 9, "bestreSTReSTRoom", 14, true));
-}
-
-TEST_F(UtilsTest, TestDebug) {
-#define LVL(x) (ADebug::Level)(x)
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "", LVL(5)), LVL(5));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "   \t  \n ", LVL(2)), LVL(2));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3:*deo", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
-            "video", "\t\n 3 \t\n:\t\n video \t\n", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3:*deo,2:vid*", LVL(5)), LVL(2));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
-            "avideo", "\t\n 3 \t\n:\t\n avideo \t\n,\t\n 2 \t\n:\t\n video \t\n", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
-            "audio.omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(2));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
-            "video.omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(4));
-#undef LVL
-}
-
-TEST_F(UtilsTest, TestFourCC) {
-    ASSERT_EQ(FOURCC('s', 't', 'm' , 'u'), 'stmu');
-}
-
-TEST_F(UtilsTest, TestMathTemplates) {
-    ASSERT_EQ(divRound(-10, -4), 3);
-    ASSERT_EQ(divRound(-11, -4), 3);
-    ASSERT_EQ(divRound(-12, -4), 3);
-    ASSERT_EQ(divRound(-13, -4), 3);
-    ASSERT_EQ(divRound(-14, -4), 4);
-
-    ASSERT_EQ(divRound(10, -4), -3);
-    ASSERT_EQ(divRound(11, -4), -3);
-    ASSERT_EQ(divRound(12, -4), -3);
-    ASSERT_EQ(divRound(13, -4), -3);
-    ASSERT_EQ(divRound(14, -4), -4);
-
-    ASSERT_EQ(divRound(-10, 4), -3);
-    ASSERT_EQ(divRound(-11, 4), -3);
-    ASSERT_EQ(divRound(-12, 4), -3);
-    ASSERT_EQ(divRound(-13, 4), -3);
-    ASSERT_EQ(divRound(-14, 4), -4);
-
-    ASSERT_EQ(divRound(10, 4), 3);
-    ASSERT_EQ(divRound(11, 4), 3);
-    ASSERT_EQ(divRound(12, 4), 3);
-    ASSERT_EQ(divRound(13, 4), 3);
-    ASSERT_EQ(divRound(14, 4), 4);
-
-    ASSERT_EQ(divUp(-11, -4), 3);
-    ASSERT_EQ(divUp(-12, -4), 3);
-    ASSERT_EQ(divUp(-13, -4), 4);
-
-    ASSERT_EQ(divUp(11, -4), -2);
-    ASSERT_EQ(divUp(12, -4), -3);
-    ASSERT_EQ(divUp(13, -4), -3);
-
-    ASSERT_EQ(divUp(-11, 4), -2);
-    ASSERT_EQ(divUp(-12, 4), -3);
-    ASSERT_EQ(divUp(-13, 4), -3);
-
-    ASSERT_EQ(divUp(11, 4), 3);
-    ASSERT_EQ(divUp(12, 4), 3);
-    ASSERT_EQ(divUp(13, 4), 4);
-
-    ASSERT_EQ(align(11, 4), 12);
-    ASSERT_EQ(align(12, 4), 12);
-    ASSERT_EQ(align(13, 4), 16);
-    ASSERT_EQ(align(11, 8), 16);
-    ASSERT_EQ(align(11, 2), 12);
-    ASSERT_EQ(align(11, 1), 11);
-
-    ASSERT_EQ(abs(5L), 5L);
-    ASSERT_EQ(abs(-25), 25);
-
-    ASSERT_EQ(min(5.6f, 6.0f), 5.6f);
-    ASSERT_EQ(min(6.0f, 5.6f), 5.6f);
-    ASSERT_EQ(min(-4.3, 8.6), -4.3);
-    ASSERT_EQ(min(8.6, -4.3), -4.3);
-
-    ASSERT_EQ(max(5.6f, 6.0f), 6.0f);
-    ASSERT_EQ(max(6.0f, 5.6f), 6.0f);
-    ASSERT_EQ(max(-4.3, 8.6), 8.6);
-    ASSERT_EQ(max(8.6, -4.3), 8.6);
-
-    ASSERT_FALSE(isInRange(-43, 86u, -44));
-    ASSERT_TRUE(isInRange(-43, 87u, -43));
-    ASSERT_TRUE(isInRange(-43, 88u, -1));
-    ASSERT_TRUE(isInRange(-43, 89u, 0));
-    ASSERT_TRUE(isInRange(-43, 90u, 46));
-    ASSERT_FALSE(isInRange(-43, 91u, 48));
-    ASSERT_FALSE(isInRange(-43, 92u, 50));
-
-    ASSERT_FALSE(isInRange(43, 86u, 42));
-    ASSERT_TRUE(isInRange(43, 87u, 43));
-    ASSERT_TRUE(isInRange(43, 88u, 44));
-    ASSERT_TRUE(isInRange(43, 89u, 131));
-    ASSERT_FALSE(isInRange(43, 90u, 133));
-    ASSERT_FALSE(isInRange(43, 91u, 135));
-
-    ASSERT_FALSE(isInRange(43u, 86u, 42u));
-    ASSERT_TRUE(isInRange(43u, 85u, 43u));
-    ASSERT_TRUE(isInRange(43u, 84u, 44u));
-    ASSERT_TRUE(isInRange(43u, 83u, 125u));
-    ASSERT_FALSE(isInRange(43u, 82u, 125u));
-    ASSERT_FALSE(isInRange(43u, 81u, 125u));
-
-    ASSERT_FALSE(isInRange(-43, ~0u, 43));
-    ASSERT_FALSE(isInRange(-43, ~0u, 44));
-    ASSERT_FALSE(isInRange(-43, ~0u, ~0));
-    ASSERT_FALSE(isInRange(-43, ~0u, 41));
-    ASSERT_FALSE(isInRange(-43, ~0u, 40));
-
-    ASSERT_FALSE(isInRange(43u, ~0u, 43u));
-    ASSERT_FALSE(isInRange(43u, ~0u, 41u));
-    ASSERT_FALSE(isInRange(43u, ~0u, 40u));
-    ASSERT_FALSE(isInRange(43u, ~0u, ~0u));
-
-    ASSERT_FALSE(isInRange(-43, 86u, -44, 0u));
-    ASSERT_FALSE(isInRange(-43, 86u, -44, 1u));
-    ASSERT_FALSE(isInRange(-43, 86u, -44, 2u));
-    ASSERT_FALSE(isInRange(-43, 86u, -44, ~0u));
-    ASSERT_TRUE(isInRange(-43, 87u, -43, 0u));
-    ASSERT_TRUE(isInRange(-43, 87u, -43, 1u));
-    ASSERT_TRUE(isInRange(-43, 87u, -43, 86u));
-    ASSERT_TRUE(isInRange(-43, 87u, -43, 87u));
-    ASSERT_FALSE(isInRange(-43, 87u, -43, 88u));
-    ASSERT_FALSE(isInRange(-43, 87u, -43, ~0u));
-    ASSERT_TRUE(isInRange(-43, 88u, -1, 0u));
-    ASSERT_TRUE(isInRange(-43, 88u, -1, 45u));
-    ASSERT_TRUE(isInRange(-43, 88u, -1, 46u));
-    ASSERT_FALSE(isInRange(-43, 88u, -1, 47u));
-    ASSERT_FALSE(isInRange(-43, 88u, -1, ~3u));
-    ASSERT_TRUE(isInRange(-43, 90u, 46, 0u));
-    ASSERT_TRUE(isInRange(-43, 90u, 46, 1u));
-    ASSERT_FALSE(isInRange(-43, 90u, 46, 2u));
-    ASSERT_FALSE(isInRange(-43, 91u, 48, 0u));
-    ASSERT_FALSE(isInRange(-43, 91u, 48, 2u));
-    ASSERT_FALSE(isInRange(-43, 91u, 48, ~6u));
-    ASSERT_FALSE(isInRange(-43, 92u, 50, 0u));
-    ASSERT_FALSE(isInRange(-43, 92u, 50, 1u));
-
-    ASSERT_FALSE(isInRange(43u, 86u, 42u, 0u));
-    ASSERT_FALSE(isInRange(43u, 86u, 42u, 1u));
-    ASSERT_FALSE(isInRange(43u, 86u, 42u, 2u));
-    ASSERT_FALSE(isInRange(43u, 86u, 42u, ~0u));
-    ASSERT_TRUE(isInRange(43u, 87u, 43u, 0u));
-    ASSERT_TRUE(isInRange(43u, 87u, 43u, 1u));
-    ASSERT_TRUE(isInRange(43u, 87u, 43u, 86u));
-    ASSERT_TRUE(isInRange(43u, 87u, 43u, 87u));
-    ASSERT_FALSE(isInRange(43u, 87u, 43u, 88u));
-    ASSERT_FALSE(isInRange(43u, 87u, 43u, ~0u));
-    ASSERT_TRUE(isInRange(43u, 88u, 60u, 0u));
-    ASSERT_TRUE(isInRange(43u, 88u, 60u, 70u));
-    ASSERT_TRUE(isInRange(43u, 88u, 60u, 71u));
-    ASSERT_FALSE(isInRange(43u, 88u, 60u, 72u));
-    ASSERT_FALSE(isInRange(43u, 88u, 60u, ~3u));
-    ASSERT_TRUE(isInRange(43u, 90u, 132u, 0u));
-    ASSERT_TRUE(isInRange(43u, 90u, 132u, 1u));
-    ASSERT_FALSE(isInRange(43u, 90u, 132u, 2u));
-    ASSERT_FALSE(isInRange(43u, 91u, 134u, 0u));
-    ASSERT_FALSE(isInRange(43u, 91u, 134u, 2u));
-    ASSERT_FALSE(isInRange(43u, 91u, 134u, ~6u));
-    ASSERT_FALSE(isInRange(43u, 92u, 136u, 0u));
-    ASSERT_FALSE(isInRange(43u, 92u, 136u, 1u));
-
-    ASSERT_EQ(periodicError(124, 100), 24);
-    ASSERT_EQ(periodicError(288, 100), 12);
-    ASSERT_EQ(periodicError(-345, 100), 45);
-    ASSERT_EQ(periodicError(-493, 100), 7);
-    ASSERT_EQ(periodicError(-550, 100), 50);
-    ASSERT_EQ(periodicError(-600, 100), 0);
-}
-
-} // namespace android
diff --git a/media/libstagefright/timedtext/Android.mk b/media/libstagefright/timedtext/Android.mk
index f2c6365..70ae46b 100644
--- a/media/libstagefright/timedtext/Android.mk
+++ b/media/libstagefright/timedtext/Android.mk
@@ -5,13 +5,15 @@
         TextDescriptions.cpp      \
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_C_INCLUDES:= \
         $(TOP)/frameworks/av/include/media/stagefright/timedtext \
         $(TOP)/frameworks/av/media/libstagefright
 
+LOCAL_SHARED_LIBRARIES := libmedia
+
 LOCAL_MODULE:= libstagefright_timedtext
 
 include $(BUILD_STATIC_LIBRARY)
diff --git a/media/libstagefright/webm/Android.mk b/media/libstagefright/webm/Android.mk
index ce580ae..0d55de9 100644
--- a/media/libstagefright/webm/Android.mk
+++ b/media/libstagefright/webm/Android.mk
@@ -4,8 +4,8 @@
 LOCAL_CPPFLAGS += -D__STDINT_LIMITS
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SRC_FILES:= EbmlUtil.cpp        \
                   WebmElement.cpp     \
diff --git a/media/libstagefright/webm/WebmElement.h b/media/libstagefright/webm/WebmElement.h
index 4e90793..ffbba1b 100644
--- a/media/libstagefright/webm/WebmElement.h
+++ b/media/libstagefright/webm/WebmElement.h
@@ -114,14 +114,14 @@
 
 struct EbmlVoid : public WebmElement {
     const uint64_t mSizeWidth;
-    EbmlVoid(uint64_t totalSize);
+    explicit EbmlVoid(uint64_t totalSize);
     int serializePayloadSize(uint8_t *buf);
     void serializePayload(uint8_t *buf);
 };
 
 struct WebmMaster : public WebmElement {
     const List<sp<WebmElement> > mChildren;
-    WebmMaster(uint64_t id);
+    explicit WebmMaster(uint64_t id);
     WebmMaster(uint64_t id, const List<sp<WebmElement> > &children);
     int serializePayloadSize(uint8_t *buf);
     void serializePayload(uint8_t *buf);
diff --git a/media/libstagefright/webm/WebmFrameThread.cpp b/media/libstagefright/webm/WebmFrameThread.cpp
index 7eb4745..77de3c8 100644
--- a/media/libstagefright/webm/WebmFrameThread.cpp
+++ b/media/libstagefright/webm/WebmFrameThread.cpp
@@ -37,17 +37,23 @@
 }
 
 status_t WebmFrameThread::start() {
+    status_t err = OK;
     pthread_attr_t attr;
     pthread_attr_init(&attr);
     pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
-    pthread_create(&mThread, &attr, WebmFrameThread::wrap, this);
+    if ((err = pthread_create(&mThread, &attr, WebmFrameThread::wrap, this))) {
+        mThread = 0;
+    }
     pthread_attr_destroy(&attr);
-    return OK;
+    return err;
 }
 
 status_t WebmFrameThread::stop() {
-    void *status;
-    pthread_join(mThread, &status);
+    void *status = nullptr;
+    if (mThread) {
+        pthread_join(mThread, &status);
+        mThread = 0;
+    }
     return (status_t)(intptr_t)status;
 }
 
diff --git a/media/libstagefright/webm/WebmWriter.cpp b/media/libstagefright/webm/WebmWriter.cpp
index e58964d..25d6821 100644
--- a/media/libstagefright/webm/WebmWriter.cpp
+++ b/media/libstagefright/webm/WebmWriter.cpp
@@ -493,7 +493,7 @@
     }
 
     sp<WebmElement> elems[] = { ebml, segment, seekHead, info, tracks, cues };
-    size_t nElems = sizeof(elems) / sizeof(elems[0]);
+    static const size_t nElems = sizeof(elems) / sizeof(elems[0]);
     uint64_t offsets[nElems];
     uint64_t sizes[nElems];
     for (uint32_t i = 0; i < nElems; i++) {
diff --git a/media/libstagefright/webm/WebmWriter.h b/media/libstagefright/webm/WebmWriter.h
index dd1fba3..9f3b19f 100644
--- a/media/libstagefright/webm/WebmWriter.h
+++ b/media/libstagefright/webm/WebmWriter.h
@@ -36,7 +36,7 @@
 
 class WebmWriter : public MediaWriter {
 public:
-    WebmWriter(int fd);
+    explicit WebmWriter(int fd);
     ~WebmWriter() { reset(); }
 
 
diff --git a/media/libstagefright/wifi-display/Android.mk b/media/libstagefright/wifi-display/Android.mk
index ae4ac90..a1b4aec 100644
--- a/media/libstagefright/wifi-display/Android.mk
+++ b/media/libstagefright/wifi-display/Android.mk
@@ -24,7 +24,6 @@
         libbinder                       \
         libcutils                       \
         liblog                          \
-        libgui                          \
         libmedia                        \
         libstagefright                  \
         libstagefright_foundation       \
@@ -32,8 +31,8 @@
         libutils                        \
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_MODULE:= libstagefright_wfd
 
diff --git a/media/libstagefright/wifi-display/MediaSender.cpp b/media/libstagefright/wifi-display/MediaSender.cpp
index 6f0087f..ae507fc 100644
--- a/media/libstagefright/wifi-display/MediaSender.cpp
+++ b/media/libstagefright/wifi-display/MediaSender.cpp
@@ -423,9 +423,11 @@
             CHECK_GE(accessUnit->size(), rangeLength);
 
             sp<GraphicBuffer> grbuf(new GraphicBuffer(
-                    rangeOffset + rangeLength, 1, HAL_PIXEL_FORMAT_Y8,
-                    GRALLOC_USAGE_HW_VIDEO_ENCODER, rangeOffset + rangeLength,
-                    handle, false));
+                    rangeOffset + rangeLength /* width */, 1 /* height */,
+                    HAL_PIXEL_FORMAT_Y8, 1 /* layerCount */,
+                    GRALLOC_USAGE_HW_VIDEO_ENCODER,
+                    rangeOffset + rangeLength /* stride */, handle,
+                    false /* keepOwnership */));
 
             err = mHDCP->encryptNative(
                     grbuf, rangeOffset, rangeLength,
diff --git a/media/libstagefright/wifi-display/source/Converter.cpp b/media/libstagefright/wifi-display/source/Converter.cpp
index 471152e..273af18 100644
--- a/media/libstagefright/wifi-display/source/Converter.cpp
+++ b/media/libstagefright/wifi-display/source/Converter.cpp
@@ -26,6 +26,7 @@
 #include <cutils/properties.h>
 #include <gui/Surface.h>
 #include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -720,7 +721,7 @@
 #endif
 
             sp<ABuffer> buffer;
-            sp<ABuffer> outbuf = mEncoderOutputBuffers.itemAt(bufferIndex);
+            sp<MediaCodecBuffer> outbuf = mEncoderOutputBuffers.itemAt(bufferIndex);
 
             if (outbuf->meta()->findPointer("handle", (void**)&handle) &&
                     handle != NULL) {
diff --git a/media/libstagefright/wifi-display/source/Converter.h b/media/libstagefright/wifi-display/source/Converter.h
index b182990..ad95ab5 100644
--- a/media/libstagefright/wifi-display/source/Converter.h
+++ b/media/libstagefright/wifi-display/source/Converter.h
@@ -25,6 +25,7 @@
 struct ABuffer;
 class IGraphicBufferProducer;
 struct MediaCodec;
+class MediaCodecBuffer;
 
 #define ENABLE_SILENCE_DETECTION        0
 
@@ -106,8 +107,8 @@
 
     sp<IGraphicBufferProducer> mGraphicBufferProducer;
 
-    Vector<sp<ABuffer> > mEncoderInputBuffers;
-    Vector<sp<ABuffer> > mEncoderOutputBuffers;
+    Vector<sp<MediaCodecBuffer> > mEncoderInputBuffers;
+    Vector<sp<MediaCodecBuffer> > mEncoderOutputBuffers;
 
     List<size_t> mAvailEncoderInputIndices;
 
diff --git a/media/libstagefright/wifi-display/source/PlaybackSession.cpp b/media/libstagefright/wifi-display/source/PlaybackSession.cpp
index 3587cb9..f1ecca0 100644
--- a/media/libstagefright/wifi-display/source/PlaybackSession.cpp
+++ b/media/libstagefright/wifi-display/source/PlaybackSession.cpp
@@ -36,7 +36,6 @@
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/hexdump.h>
 #include <media/stagefright/AudioSource.h>
-#include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaSource.h>
@@ -748,8 +747,6 @@
 
 status_t WifiDisplaySource::PlaybackSession::setupMediaPacketizer(
         bool enableAudio, bool enableVideo) {
-    DataSource::RegisterDefaultSniffers();
-
     mExtractor = new NuMediaExtractor;
 
     status_t err = mExtractor->setDataSource(
diff --git a/media/libstagefright/wifi-display/source/TSPacketizer.h b/media/libstagefright/wifi-display/source/TSPacketizer.h
index 4a664ee..0dcb179 100644
--- a/media/libstagefright/wifi-display/source/TSPacketizer.h
+++ b/media/libstagefright/wifi-display/source/TSPacketizer.h
@@ -36,7 +36,7 @@
         EMIT_HDCP20_DESCRIPTOR = 1,
         EMIT_HDCP21_DESCRIPTOR = 2,
     };
-    TSPacketizer(uint32_t flags);
+    explicit TSPacketizer(uint32_t flags);
 
     // Returns trackIndex or error.
     ssize_t addTrack(const sp<AMessage> &format);
diff --git a/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp b/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp
index e26165e..9cda8dc 100644
--- a/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp
+++ b/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp
@@ -782,7 +782,7 @@
             return;
         }
 
-        char *commaPos = strchr(s, ',');
+        const char *commaPos = strchr(s, ',');
         if (commaPos != NULL) {
             s = commaPos + 1;
 
@@ -911,10 +911,8 @@
 
         bool supportsPCM = (modes & 2) != 0;  // LPCM 2ch 48kHz
 
-        char val[PROPERTY_VALUE_MAX];
         if (supportsPCM
-                && property_get("media.wfd.use-pcm-audio", val, NULL)
-                && (!strcasecmp("true", val) || !strcmp("1", val))) {
+                && property_get_bool("media.wfd.use-pcm-audio", false)) {
             ALOGI("Using PCM audio.");
             mUsingPCMAudio = true;
         } else if (supportsAAC) {
@@ -1669,7 +1667,7 @@
 }
 
 struct WifiDisplaySource::HDCPObserver : public BnHDCPObserver {
-    HDCPObserver(const sp<AMessage> &notify);
+    explicit HDCPObserver(const sp<AMessage> &notify);
 
     virtual void notify(
             int msg, int ext1, int ext2, const Parcel *obj);
diff --git a/media/libstagefright/yuv/Android.mk b/media/libstagefright/yuv/Android.mk
deleted file mode 100644
index f2fd3be..0000000
--- a/media/libstagefright/yuv/Android.mk
+++ /dev/null
@@ -1,19 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:=               \
-        YUVImage.cpp            \
-        YUVCanvas.cpp
-
-LOCAL_SHARED_LIBRARIES :=       \
-        libcutils \
-        liblog
-
-LOCAL_MODULE:= libstagefright_yuv
-
-
-LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
-
-include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/yuv/MODULE_LICENSE_APACHE2 b/media/libstagefright/yuv/MODULE_LICENSE_APACHE2
deleted file mode 100644
index e69de29..0000000
--- a/media/libstagefright/yuv/MODULE_LICENSE_APACHE2
+++ /dev/null
diff --git a/media/libstagefright/yuv/NOTICE b/media/libstagefright/yuv/NOTICE
deleted file mode 100644
index c5b1efa..0000000
--- a/media/libstagefright/yuv/NOTICE
+++ /dev/null
@@ -1,190 +0,0 @@
-
-   Copyright (c) 2005-2008, The Android Open Source Project
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
-      (an example is provided in the Appendix below).
-
-      "Derivative Works" shall mean any work, whether in Source or Object
-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
-
-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
-      or by an individual or Legal Entity authorized to submit on behalf of
-      the copyright owner. For the purposes of this definition, "submitted"
-      means any form of electronic, verbal, or written communication sent
-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
-
-      "Contributor" shall mean Licensor and any individual or Legal Entity
-      on behalf of whom a Contribution has been received by Licensor and
-      subsequently incorporated within the Work.
-
-   2. Grant of Copyright License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      copyright license to reproduce, prepare Derivative Works of,
-      publicly display, publicly perform, sublicense, and distribute the
-      Work and such Derivative Works in Source or Object form.
-
-   3. Grant of Patent License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      (except as stated in this section) patent license to make, have made,
-      use, offer to sell, sell, import, and otherwise transfer the Work,
-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
-      Contribution(s) alone or by combination of their Contribution(s)
-      with the Work to which such Contribution(s) was submitted. If You
-      institute patent litigation against any entity (including a
-      cross-claim or counterclaim in a lawsuit) alleging that the Work
-      or a Contribution incorporated within the Work constitutes direct
-      or contributory patent infringement, then any patent licenses
-      granted to You under this License for that Work shall terminate
-      as of the date such litigation is filed.
-
-   4. Redistribution. You may reproduce and distribute copies of the
-      Work or Derivative Works thereof in any medium, with or without
-      modifications, and in Source or Object form, provided that You
-      meet the following conditions:
-
-      (a) You must give any other recipients of the Work or
-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
-          that You distribute, all copyright, patent, trademark, and
-          attribution notices from the Source form of the Work,
-          excluding those notices that do not pertain to any part of
-          the Derivative Works; and
-
-      (d) If the Work includes a "NOTICE" text file as part of its
-          distribution, then any Derivative Works that You distribute must
-          include a readable copy of the attribution notices contained
-          within such NOTICE file, excluding those notices that do not
-          pertain to any part of the Derivative Works, in at least one
-          of the following places: within a NOTICE text file distributed
-          as part of the Derivative Works; within the Source form or
-          documentation, if provided along with the Derivative Works; or,
-          within a display generated by the Derivative Works, if and
-          wherever such third-party notices normally appear. The contents
-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
-
-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
diff --git a/media/libstagefright/yuv/YUVCanvas.cpp b/media/libstagefright/yuv/YUVCanvas.cpp
deleted file mode 100644
index 4c9fee8..0000000
--- a/media/libstagefright/yuv/YUVCanvas.cpp
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_NDEBUG 0
-#define LOG_TAG "YUVCanvas"
-
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/YUVCanvas.h>
-#include <media/stagefright/YUVImage.h>
-#include <ui/Rect.h>
-
-namespace android {
-
-YUVCanvas::YUVCanvas(YUVImage &yuvImage)
-    : mYUVImage(yuvImage) {
-}
-
-YUVCanvas::~YUVCanvas() {
-}
-
-void YUVCanvas::FillYUV(uint8_t yValue, uint8_t uValue, uint8_t vValue) {
-    for (int32_t y = 0; y < mYUVImage.height(); ++y) {
-        for (int32_t x = 0; x < mYUVImage.width(); ++x) {
-            mYUVImage.setPixelValue(x, y, yValue, uValue, vValue);
-        }
-    }
-}
-
-void YUVCanvas::FillYUVRectangle(const Rect& rect,
-        uint8_t yValue, uint8_t uValue, uint8_t vValue) {
-    for (int32_t y = rect.top; y < rect.bottom; ++y) {
-        for (int32_t x = rect.left; x < rect.right; ++x) {
-            mYUVImage.setPixelValue(x, y, yValue, uValue, vValue);
-        }
-    }
-}
-
-void YUVCanvas::CopyImageRect(
-        const Rect& srcRect,
-        int32_t destStartX, int32_t destStartY,
-        const YUVImage &srcImage) {
-
-    // Try fast copy first
-    if (YUVImage::fastCopyRectangle(
-                srcRect,
-                destStartX, destStartY,
-                srcImage, mYUVImage)) {
-        return;
-    }
-
-    int32_t srcStartX = srcRect.left;
-    int32_t srcStartY = srcRect.top;
-    for (int32_t offsetY = 0; offsetY < srcRect.height(); ++offsetY) {
-        for (int32_t offsetX = 0; offsetX < srcRect.width(); ++offsetX) {
-            int32_t srcX = srcStartX + offsetX;
-            int32_t srcY = srcStartY + offsetY;
-
-            int32_t destX = destStartX + offsetX;
-            int32_t destY = destStartY + offsetY;
-
-            uint8_t yValue;
-            uint8_t uValue;
-            uint8_t vValue;
-
-            srcImage.getPixelValue(srcX, srcY, &yValue, &uValue, &vValue);
-            mYUVImage.setPixelValue(destX, destY, yValue, uValue, vValue);
-        }
-    }
-}
-
-void YUVCanvas::downsample(
-        int32_t srcOffsetX, int32_t srcOffsetY,
-        int32_t skipX, int32_t skipY,
-        const YUVImage &srcImage) {
-    // TODO: Add a low pass filter for downsampling.
-
-    // Check that srcImage is big enough to fill mYUVImage.
-    CHECK((srcOffsetX + (mYUVImage.width() - 1) * skipX) < srcImage.width());
-    CHECK((srcOffsetY + (mYUVImage.height() - 1) * skipY) < srcImage.height());
-
-    uint8_t yValue;
-    uint8_t uValue;
-    uint8_t vValue;
-
-    int32_t srcY = srcOffsetY;
-    for (int32_t y = 0; y < mYUVImage.height(); ++y) {
-        int32_t srcX = srcOffsetX;
-        for (int32_t x = 0; x < mYUVImage.width(); ++x) {
-            srcImage.getPixelValue(srcX, srcY, &yValue, &uValue, &vValue);
-            mYUVImage.setPixelValue(x, y, yValue, uValue, vValue);
-
-            srcX += skipX;
-        }
-        srcY += skipY;
-    }
-}
-
-}  // namespace android
diff --git a/media/libstagefright/yuv/YUVImage.cpp b/media/libstagefright/yuv/YUVImage.cpp
deleted file mode 100644
index c098135..0000000
--- a/media/libstagefright/yuv/YUVImage.cpp
+++ /dev/null
@@ -1,413 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_NDEBUG 0
-#define LOG_TAG "YUVImage"
-
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/YUVImage.h>
-#include <ui/Rect.h>
-
-namespace android {
-
-YUVImage::YUVImage(YUVFormat yuvFormat, int32_t width, int32_t height) {
-    mYUVFormat = yuvFormat;
-    mWidth = width;
-    mHeight = height;
-
-    size_t numberOfBytes = bufferSize(yuvFormat, width, height);
-    uint8_t *buffer = new uint8_t[numberOfBytes];
-    mBuffer = buffer;
-    mOwnBuffer = true;
-
-    initializeYUVPointers();
-}
-
-YUVImage::YUVImage(YUVFormat yuvFormat, int32_t width, int32_t height, uint8_t *buffer) {
-    mYUVFormat = yuvFormat;
-    mWidth = width;
-    mHeight = height;
-    mBuffer = buffer;
-    mOwnBuffer = false;
-
-    initializeYUVPointers();
-}
-
-//static
-size_t YUVImage::bufferSize(YUVFormat yuvFormat, int32_t width, int32_t height) {
-    int32_t numberOfPixels = width*height;
-    size_t numberOfBytes = 0;
-    if (yuvFormat == YUV420Planar || yuvFormat == YUV420SemiPlanar) {
-        // Y takes numberOfPixels bytes and U/V take numberOfPixels/4 bytes each.
-        numberOfBytes = (size_t)(numberOfPixels + (numberOfPixels >> 1));
-    } else {
-        ALOGE("Format not supported");
-    }
-    return numberOfBytes;
-}
-
-bool YUVImage::initializeYUVPointers() {
-    int32_t numberOfPixels = mWidth * mHeight;
-
-    if (mYUVFormat == YUV420Planar) {
-        mYdata = (uint8_t *)mBuffer;
-        mUdata = mYdata + numberOfPixels;
-        mVdata = mUdata + (numberOfPixels >> 2);
-    } else if (mYUVFormat == YUV420SemiPlanar) {
-        // U and V channels are interleaved as VUVUVU.
-        // So V data starts at the end of Y channel and
-        // U data starts right after V's start.
-        mYdata = (uint8_t *)mBuffer;
-        mVdata = mYdata + numberOfPixels;
-        mUdata = mVdata + 1;
-    } else {
-        ALOGE("Format not supported");
-        return false;
-    }
-    return true;
-}
-
-YUVImage::~YUVImage() {
-    if (mOwnBuffer) delete[] mBuffer;
-}
-
-bool YUVImage::getOffsets(int32_t x, int32_t y,
-        int32_t *yOffset, int32_t *uOffset, int32_t *vOffset) const {
-    *yOffset = y*mWidth + x;
-
-    int32_t uvOffset = (y >> 1) * (mWidth >> 1) + (x >> 1);
-    if (mYUVFormat == YUV420Planar) {
-        *uOffset = uvOffset;
-        *vOffset = uvOffset;
-    } else if (mYUVFormat == YUV420SemiPlanar) {
-        // Since U and V channels are interleaved, offsets need
-        // to be doubled.
-        *uOffset = 2*uvOffset;
-        *vOffset = 2*uvOffset;
-    } else {
-        ALOGE("Format not supported");
-        return false;
-    }
-
-    return true;
-}
-
-bool YUVImage::getOffsetIncrementsPerDataRow(
-        int32_t *yDataOffsetIncrement,
-        int32_t *uDataOffsetIncrement,
-        int32_t *vDataOffsetIncrement) const {
-    *yDataOffsetIncrement = mWidth;
-
-    int32_t uvDataOffsetIncrement = mWidth >> 1;
-
-    if (mYUVFormat == YUV420Planar) {
-        *uDataOffsetIncrement = uvDataOffsetIncrement;
-        *vDataOffsetIncrement = uvDataOffsetIncrement;
-    } else if (mYUVFormat == YUV420SemiPlanar) {
-        // Since U and V channels are interleaved, offsets need
-        // to be doubled.
-        *uDataOffsetIncrement = 2*uvDataOffsetIncrement;
-        *vDataOffsetIncrement = 2*uvDataOffsetIncrement;
-    } else {
-        ALOGE("Format not supported");
-        return false;
-    }
-
-    return true;
-}
-
-uint8_t* YUVImage::getYAddress(int32_t offset) const {
-    return mYdata + offset;
-}
-
-uint8_t* YUVImage::getUAddress(int32_t offset) const {
-    return mUdata + offset;
-}
-
-uint8_t* YUVImage::getVAddress(int32_t offset) const {
-    return mVdata + offset;
-}
-
-bool YUVImage::getYUVAddresses(int32_t x, int32_t y,
-        uint8_t **yAddr, uint8_t **uAddr, uint8_t **vAddr) const {
-    int32_t yOffset;
-    int32_t uOffset;
-    int32_t vOffset;
-    if (!getOffsets(x, y, &yOffset, &uOffset, &vOffset)) return false;
-
-    *yAddr = getYAddress(yOffset);
-    *uAddr = getUAddress(uOffset);
-    *vAddr = getVAddress(vOffset);
-
-    return true;
-}
-
-bool YUVImage::validPixel(int32_t x, int32_t y) const {
-    return (x >= 0 && x < mWidth &&
-            y >= 0 && y < mHeight);
-}
-
-bool YUVImage::getPixelValue(int32_t x, int32_t y,
-        uint8_t *yPtr, uint8_t *uPtr, uint8_t *vPtr) const {
-    CHECK(validPixel(x, y));
-
-    uint8_t *yAddr;
-    uint8_t *uAddr;
-    uint8_t *vAddr;
-    if (!getYUVAddresses(x, y, &yAddr, &uAddr, &vAddr)) return false;
-
-    *yPtr = *yAddr;
-    *uPtr = *uAddr;
-    *vPtr = *vAddr;
-
-    return true;
-}
-
-bool YUVImage::setPixelValue(int32_t x, int32_t y,
-        uint8_t yValue, uint8_t uValue, uint8_t vValue) {
-    CHECK(validPixel(x, y));
-
-    uint8_t *yAddr;
-    uint8_t *uAddr;
-    uint8_t *vAddr;
-    if (!getYUVAddresses(x, y, &yAddr, &uAddr, &vAddr)) return false;
-
-    *yAddr = yValue;
-    *uAddr = uValue;
-    *vAddr = vValue;
-
-    return true;
-}
-
-void YUVImage::fastCopyRectangle420Planar(
-        const Rect& srcRect,
-        int32_t destStartX, int32_t destStartY,
-        const YUVImage &srcImage, YUVImage &destImage) {
-    CHECK(srcImage.mYUVFormat == YUV420Planar);
-    CHECK(destImage.mYUVFormat == YUV420Planar);
-
-    int32_t srcStartX = srcRect.left;
-    int32_t srcStartY = srcRect.top;
-    int32_t width = srcRect.width();
-    int32_t height = srcRect.height();
-
-    // Get source and destination start addresses
-    uint8_t *ySrcAddrBase;
-    uint8_t *uSrcAddrBase;
-    uint8_t *vSrcAddrBase;
-    srcImage.getYUVAddresses(srcStartX, srcStartY,
-            &ySrcAddrBase, &uSrcAddrBase, &vSrcAddrBase);
-
-    uint8_t *yDestAddrBase;
-    uint8_t *uDestAddrBase;
-    uint8_t *vDestAddrBase;
-    destImage.getYUVAddresses(destStartX, destStartY,
-            &yDestAddrBase, &uDestAddrBase, &vDestAddrBase);
-
-    // Get source and destination offset increments incurred in going
-    // from one data row to next.
-    int32_t ySrcOffsetIncrement;
-    int32_t uSrcOffsetIncrement;
-    int32_t vSrcOffsetIncrement;
-    srcImage.getOffsetIncrementsPerDataRow(
-            &ySrcOffsetIncrement, &uSrcOffsetIncrement, &vSrcOffsetIncrement);
-
-    int32_t yDestOffsetIncrement;
-    int32_t uDestOffsetIncrement = 0;
-    int32_t vDestOffsetIncrement = 0;
-    destImage.getOffsetIncrementsPerDataRow(
-            &yDestOffsetIncrement, &uDestOffsetIncrement, &vDestOffsetIncrement);
-
-    // Copy Y
-    {
-        size_t numberOfYBytesPerRow = (size_t) width;
-        uint8_t *ySrcAddr = ySrcAddrBase;
-        uint8_t *yDestAddr = yDestAddrBase;
-        for (int32_t offsetY = 0; offsetY < height; ++offsetY) {
-            memcpy(yDestAddr, ySrcAddr, numberOfYBytesPerRow);
-
-            ySrcAddr += ySrcOffsetIncrement;
-            yDestAddr += yDestOffsetIncrement;
-        }
-    }
-
-    // Copy U
-    {
-        size_t numberOfUBytesPerRow = (size_t) (width >> 1);
-        uint8_t *uSrcAddr = uSrcAddrBase;
-        uint8_t *uDestAddr = uDestAddrBase;
-        // Every other row has an entry for U/V channel values. Hence only
-        // go half the height.
-        for (int32_t offsetY = 0; offsetY < (height >> 1); ++offsetY) {
-            memcpy(uDestAddr, uSrcAddr, numberOfUBytesPerRow);
-
-            uSrcAddr += uSrcOffsetIncrement;
-            uDestAddr += uDestOffsetIncrement;
-        }
-    }
-
-    // Copy V
-    {
-        size_t numberOfVBytesPerRow = (size_t) (width >> 1);
-        uint8_t *vSrcAddr = vSrcAddrBase;
-        uint8_t *vDestAddr = vDestAddrBase;
-        // Every other pixel row has a U/V data row. Hence only go half the height.
-        for (int32_t offsetY = 0; offsetY < (height >> 1); ++offsetY) {
-            memcpy(vDestAddr, vSrcAddr, numberOfVBytesPerRow);
-
-            vSrcAddr += vSrcOffsetIncrement;
-            vDestAddr += vDestOffsetIncrement;
-        }
-    }
-}
-
-void YUVImage::fastCopyRectangle420SemiPlanar(
-        const Rect& srcRect,
-        int32_t destStartX, int32_t destStartY,
-        const YUVImage &srcImage, YUVImage &destImage) {
-    CHECK(srcImage.mYUVFormat == YUV420SemiPlanar);
-    CHECK(destImage.mYUVFormat == YUV420SemiPlanar);
-
-    int32_t srcStartX = srcRect.left;
-    int32_t srcStartY = srcRect.top;
-    int32_t width = srcRect.width();
-    int32_t height = srcRect.height();
-
-    // Get source and destination start addresses
-    uint8_t *ySrcAddrBase;
-    uint8_t *uSrcAddrBase;
-    uint8_t *vSrcAddrBase;
-    srcImage.getYUVAddresses(srcStartX, srcStartY,
-            &ySrcAddrBase, &uSrcAddrBase, &vSrcAddrBase);
-
-    uint8_t *yDestAddrBase;
-    uint8_t *uDestAddrBase;
-    uint8_t *vDestAddrBase;
-    destImage.getYUVAddresses(destStartX, destStartY,
-            &yDestAddrBase, &uDestAddrBase, &vDestAddrBase);
-
-    // Get source and destination offset increments incurred in going
-    // from one data row to next.
-    int32_t ySrcOffsetIncrement;
-    int32_t uSrcOffsetIncrement;
-    int32_t vSrcOffsetIncrement;
-    srcImage.getOffsetIncrementsPerDataRow(
-            &ySrcOffsetIncrement, &uSrcOffsetIncrement, &vSrcOffsetIncrement);
-
-    int32_t yDestOffsetIncrement;
-    int32_t uDestOffsetIncrement;
-    int32_t vDestOffsetIncrement = 0;
-    destImage.getOffsetIncrementsPerDataRow(
-            &yDestOffsetIncrement, &uDestOffsetIncrement, &vDestOffsetIncrement);
-
-    // Copy Y
-    {
-        size_t numberOfYBytesPerRow = (size_t) width;
-        uint8_t *ySrcAddr = ySrcAddrBase;
-        uint8_t *yDestAddr = yDestAddrBase;
-        for (int32_t offsetY = 0; offsetY < height; ++offsetY) {
-            memcpy(yDestAddr, ySrcAddr, numberOfYBytesPerRow);
-
-            ySrcAddr = ySrcAddr + ySrcOffsetIncrement;
-            yDestAddr = yDestAddr + yDestOffsetIncrement;
-        }
-    }
-
-    // Copy UV
-    {
-        // UV are interleaved. So number of UV bytes per row is 2*(width/2).
-        size_t numberOfUVBytesPerRow = (size_t) width;
-        uint8_t *vSrcAddr = vSrcAddrBase;
-        uint8_t *vDestAddr = vDestAddrBase;
-        // Every other pixel row has a U/V data row. Hence only go half the height.
-        for (int32_t offsetY = 0; offsetY < (height >> 1); ++offsetY) {
-            memcpy(vDestAddr, vSrcAddr, numberOfUVBytesPerRow);
-
-            vSrcAddr += vSrcOffsetIncrement;
-            vDestAddr += vDestOffsetIncrement;
-        }
-    }
-}
-
-// static
-bool YUVImage::fastCopyRectangle(
-        const Rect& srcRect,
-        int32_t destStartX, int32_t destStartY,
-        const YUVImage &srcImage, YUVImage &destImage) {
-    if (srcImage.mYUVFormat == destImage.mYUVFormat) {
-        if (srcImage.mYUVFormat == YUV420Planar) {
-            fastCopyRectangle420Planar(
-                    srcRect,
-                    destStartX, destStartY,
-                    srcImage, destImage);
-        } else if (srcImage.mYUVFormat == YUV420SemiPlanar) {
-            fastCopyRectangle420SemiPlanar(
-                    srcRect,
-                    destStartX, destStartY,
-                    srcImage, destImage);
-        }
-        return true;
-    }
-    return false;
-}
-
-uint8_t clamp(uint8_t v, uint8_t minValue, uint8_t maxValue) {
-    CHECK(maxValue >= minValue);
-
-    if (v < minValue) return minValue;
-    else if (v > maxValue) return maxValue;
-    else return v;
-}
-
-void YUVImage::yuv2rgb(uint8_t yValue, uint8_t uValue, uint8_t vValue,
-        uint8_t *r, uint8_t *g, uint8_t *b) const {
-    int rTmp = yValue + (1.370705 * (vValue-128));
-    int gTmp = yValue - (0.698001 * (vValue-128)) - (0.337633 * (uValue-128));
-    int bTmp = yValue + (1.732446 * (uValue-128));
-
-    *r = clamp(rTmp, 0, 255);
-    *g = clamp(gTmp, 0, 255);
-    *b = clamp(bTmp, 0, 255);
-}
-
-bool YUVImage::writeToPPM(const char *filename) const {
-    FILE *fp = fopen(filename, "w");
-    if (fp == NULL) {
-        return false;
-    }
-    fprintf(fp, "P3\n");
-    fprintf(fp, "%d %d\n", mWidth, mHeight);
-    fprintf(fp, "255\n");
-    for (int32_t y = 0; y < mHeight; ++y) {
-        for (int32_t x = 0; x < mWidth; ++x) {
-            uint8_t yValue = 0u;
-            uint8_t uValue = 0u;
-            uint8_t vValue = 0u;
-            getPixelValue(x, y, &yValue, &uValue, & vValue);
-
-            uint8_t rValue;
-            uint8_t gValue;
-            uint8_t bValue;
-            yuv2rgb(yValue, uValue, vValue, &rValue, &gValue, &bValue);
-
-            fprintf(fp, "%d %d %d\n", (int32_t)rValue, (int32_t)gValue, (int32_t)bValue);
-        }
-    }
-    fclose(fp);
-    return true;
-}
-
-}  // namespace android
diff --git a/media/mediaserver/Android.mk b/media/mediaserver/Android.mk
index 1738df8..f7597db 100644
--- a/media/mediaserver/Android.mk
+++ b/media/mediaserver/Android.mk
@@ -12,28 +12,24 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
-	main_mediaserver.cpp
+        main_mediaserver.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-	libcamera_metadata \
-	libcamera_client \
-	libcameraservice \
-	libresourcemanagerservice \
-	libcutils \
-	libmedia \
-	libmediaplayerservice \
-	libutils \
-	libbinder \
-	libicuuc \
+        libresourcemanagerservice \
+        liblog \
+        libmediaplayerservice \
+        libutils \
+        libbinder \
+        libicuuc \
+        android.hardware.media.omx@1.0 \
 
 LOCAL_STATIC_LIBRARIES := \
         libicuandroid_utils \
         libregistermsext
 
 LOCAL_C_INCLUDES := \
-    frameworks/av/media/libmediaplayerservice \
-    frameworks/av/services/camera/libcameraservice \
-    frameworks/av/services/mediaresourcemanager \
+        frameworks/av/media/libmediaplayerservice \
+        frameworks/av/services/mediaresourcemanager \
 
 LOCAL_MODULE:= mediaserver
 LOCAL_32_BIT_ONLY := true
diff --git a/media/mtp/Android.mk b/media/mtp/Android.mk
index cb7e4aa..58753ff 100644
--- a/media/mtp/Android.mk
+++ b/media/mtp/Android.mk
@@ -19,26 +19,31 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:=                                       \
+                  AsyncIO.cpp                           \
                   MtpDataPacket.cpp                     \
                   MtpDebug.cpp                          \
+                  MtpDevHandle.cpp                      \
                   MtpDevice.cpp                         \
-                  MtpEventPacket.cpp                    \
                   MtpDeviceInfo.cpp                     \
+                  MtpEventPacket.cpp                    \
+                  MtpFfsHandle.cpp                      \
                   MtpObjectInfo.cpp                     \
                   MtpPacket.cpp                         \
                   MtpProperty.cpp                       \
                   MtpRequestPacket.cpp                  \
                   MtpResponsePacket.cpp                 \
                   MtpServer.cpp                         \
+                  MtpStorage.cpp                        \
                   MtpStorageInfo.cpp                    \
                   MtpStringBuffer.cpp                   \
-                  MtpStorage.cpp                        \
                   MtpUtils.cpp                          \
 
 LOCAL_MODULE:= libmtp
 
 LOCAL_CFLAGS := -DMTP_DEVICE -DMTP_HOST -Wall -Wextra -Werror
 
-LOCAL_SHARED_LIBRARIES := libutils libcutils liblog libusbhost libbinder
+LOCAL_SHARED_LIBRARIES := libbase libutils libcutils liblog libusbhost libbinder
 
 include $(BUILD_SHARED_LIBRARY)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/media/mtp/AsyncIO.cpp b/media/mtp/AsyncIO.cpp
new file mode 100644
index 0000000..bfb07dc
--- /dev/null
+++ b/media/mtp/AsyncIO.cpp
@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <condition_variable>
+#include <memory>
+#include <mutex>
+#include <queue>
+
+#include "AsyncIO.h"
+
+namespace {
+
+void read_func(struct aiocb *aiocbp) {
+    aiocbp->ret = TEMP_FAILURE_RETRY(pread(aiocbp->aio_fildes,
+                aiocbp->aio_buf, aiocbp->aio_nbytes, aiocbp->aio_offset));
+    if (aiocbp->ret == -1) aiocbp->error = errno;
+}
+
+void write_func(struct aiocb *aiocbp) {
+    aiocbp->ret = TEMP_FAILURE_RETRY(pwrite(aiocbp->aio_fildes,
+                aiocbp->aio_buf, aiocbp->aio_nbytes, aiocbp->aio_offset));
+    if (aiocbp->ret == -1) aiocbp->error = errno;
+}
+
+void splice_read_func(struct aiocb *aiocbp) {
+    loff_t long_offset = aiocbp->aio_offset;
+    aiocbp->ret = TEMP_FAILURE_RETRY(splice(aiocbp->aio_fildes,
+                &long_offset, aiocbp->aio_sink,
+                NULL, aiocbp->aio_nbytes, 0));
+    if (aiocbp->ret == -1) aiocbp->error = errno;
+}
+
+void splice_write_func(struct aiocb *aiocbp) {
+    loff_t long_offset = aiocbp->aio_offset;
+    aiocbp->ret = TEMP_FAILURE_RETRY(splice(aiocbp->aio_fildes, NULL,
+                aiocbp->aio_sink, &long_offset,
+                aiocbp->aio_nbytes, 0));
+    if (aiocbp->ret == -1) aiocbp->error = errno;
+}
+
+std::queue<std::unique_ptr<struct aiocb>> queue;
+std::mutex queue_lock;
+std::condition_variable queue_cond;
+std::condition_variable write_cond;
+int done = 1;
+void splice_write_pool_func(int) {
+    while(1) {
+        std::unique_lock<std::mutex> lk(queue_lock);
+        queue_cond.wait(lk, []{return !queue.empty() || done;});
+        if (queue.empty() && done) {
+            return;
+        }
+        std::unique_ptr<struct aiocb> aiocbp = std::move(queue.front());
+        queue.pop();
+        lk.unlock();
+        write_cond.notify_one();
+        splice_write_func(aiocbp.get());
+        close(aiocbp->aio_fildes);
+    }
+}
+
+void write_pool_func(int) {
+    while(1) {
+        std::unique_lock<std::mutex> lk(queue_lock);
+        queue_cond.wait(lk, []{return !queue.empty() || done;});
+        if (queue.empty() && done) {
+            return;
+        }
+        std::unique_ptr<struct aiocb> aiocbp = std::move(queue.front());
+        queue.pop();
+        lk.unlock();
+        write_cond.notify_one();
+        aiocbp->ret = TEMP_FAILURE_RETRY(pwrite(aiocbp->aio_fildes,
+                    aiocbp->aio_pool_buf.get(), aiocbp->aio_nbytes, aiocbp->aio_offset));
+        if (aiocbp->ret == -1) aiocbp->error = errno;
+    }
+}
+
+constexpr int NUM_THREADS = 1;
+constexpr int MAX_QUEUE_SIZE = 10;
+std::thread pool[NUM_THREADS];
+
+} // end anonymous namespace
+
+aiocb::~aiocb() {
+    CHECK(!thread.joinable());
+}
+
+void aio_pool_init(void(f)(int)) {
+    CHECK(done == 1);
+    done = 0;
+    for (int i = 0; i < NUM_THREADS; i++) {
+        pool[i] = std::thread(f, i);
+    }
+}
+
+void aio_pool_splice_init() {
+    aio_pool_init(splice_write_pool_func);
+}
+
+void aio_pool_write_init() {
+    aio_pool_init(write_pool_func);
+}
+
+void aio_pool_end() {
+    done = 1;
+    for (int i = 0; i < NUM_THREADS; i++) {
+        std::unique_lock<std::mutex> lk(queue_lock);
+        lk.unlock();
+        queue_cond.notify_one();
+    }
+
+    for (int i = 0; i < NUM_THREADS; i++) {
+        pool[i].join();
+    }
+}
+
+// used for both writes and splices depending on which init was used before.
+int aio_pool_write(struct aiocb *aiocbp) {
+    std::unique_lock<std::mutex> lk(queue_lock);
+    write_cond.wait(lk, []{return queue.size() < MAX_QUEUE_SIZE;});
+    queue.push(std::unique_ptr<struct aiocb>(aiocbp));
+    lk.unlock();
+    queue_cond.notify_one();
+    return 0;
+}
+
+int aio_read(struct aiocb *aiocbp) {
+    aiocbp->thread = std::thread(read_func, aiocbp);
+    return 0;
+}
+
+int aio_write(struct aiocb *aiocbp) {
+    aiocbp->thread = std::thread(write_func, aiocbp);
+    return 0;
+}
+
+int aio_splice_read(struct aiocb *aiocbp) {
+    aiocbp->thread = std::thread(splice_read_func, aiocbp);
+    return 0;
+}
+
+int aio_splice_write(struct aiocb *aiocbp) {
+    aiocbp->thread = std::thread(splice_write_func, aiocbp);
+    return 0;
+}
+
+int aio_error(const struct aiocb *aiocbp) {
+    return aiocbp->error;
+}
+
+ssize_t aio_return(struct aiocb *aiocbp) {
+    return aiocbp->ret;
+}
+
+int aio_suspend(struct aiocb *aiocbp[], int n,
+        const struct timespec *) {
+    for (int i = 0; i < n; i++) {
+        aiocbp[i]->thread.join();
+    }
+    return 0;
+}
+
+int aio_cancel(int, struct aiocb *) {
+    // Not implemented
+    return -1;
+}
+
diff --git a/media/mtp/AsyncIO.h b/media/mtp/AsyncIO.h
new file mode 100644
index 0000000..ed80828
--- /dev/null
+++ b/media/mtp/AsyncIO.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _ASYNCIO_H
+#define _ASYNCIO_H
+
+#include <fcntl.h>
+#include <linux/aio_abi.h>
+#include <memory>
+#include <signal.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <time.h>
+#include <thread>
+#include <unistd.h>
+
+/**
+ * Provides a subset of POSIX aio operations, as well
+ * as similar operations with splice and threadpools.
+ */
+
+struct aiocb {
+    int aio_fildes;     // Assumed to be the source for splices
+    void *aio_buf;      // Unused for splices
+
+    // Used for threadpool operations only, freed automatically
+    std::unique_ptr<char[]> aio_pool_buf;
+
+    off_t aio_offset;
+    size_t aio_nbytes;
+
+    int aio_sink;       // Unused for non splice r/w
+
+    // Used internally
+    std::thread thread;
+    ssize_t ret;
+    int error;
+
+    ~aiocb();
+};
+
+// Submit a request for IO to be completed
+int aio_read(struct aiocb *);
+int aio_write(struct aiocb *);
+int aio_splice_read(struct aiocb *);
+int aio_splice_write(struct aiocb *);
+
+// Suspend current thread until given IO is complete, at which point
+// its return value and any errors can be accessed
+// All submitted requests must have a corresponding suspend.
+// aiocb->aio_buf must refer to valid memory until after the suspend call
+int aio_suspend(struct aiocb *[], int, const struct timespec *);
+int aio_error(const struct aiocb *);
+ssize_t aio_return(struct aiocb *);
+
+// (Currently unimplemented)
+int aio_cancel(int, struct aiocb *);
+
+// Initialize a threadpool to perform IO. Only one pool can be
+// running at a time.
+void aio_pool_write_init();
+void aio_pool_splice_init();
+// Suspend current thread until all queued work is complete, then ends the threadpool
+void aio_pool_end();
+// Submit IO work for the threadpool to complete. Memory associated with the work is
+// freed automatically when the work is complete.
+int aio_pool_write(struct aiocb *);
+
+#endif // ASYNCIO_H
+
diff --git a/media/mtp/IMtpHandle.h b/media/mtp/IMtpHandle.h
new file mode 100644
index 0000000..0557596
--- /dev/null
+++ b/media/mtp/IMtpHandle.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef _IMTP_HANDLE_H
+#define _IMTP_HANDLE_H
+
+#include <linux/usb/f_mtp.h>
+
+constexpr char FFS_MTP_EP0[] = "/dev/usb-ffs/mtp/ep0";
+
+class IMtpHandle {
+public:
+    // Return number of bytes read/written, or -1 and errno is set
+    virtual int read(void *data, int len) = 0;
+    virtual int write(const void *data, int len) = 0;
+
+    // Return 0 if send/receive is successful, or -1 and errno is set
+    virtual int receiveFile(mtp_file_range mfr, bool zero_packet) = 0;
+    virtual int sendFile(mtp_file_range mfr) = 0;
+    virtual int sendEvent(mtp_event me) = 0;
+
+    // Return 0 if operation is successful, or -1 else
+    virtual int start() = 0;
+    virtual int configure(bool ptp) = 0;
+
+    virtual void close() = 0;
+
+    virtual ~IMtpHandle() {}
+};
+
+IMtpHandle *get_ffs_handle();
+IMtpHandle *get_mtp_handle();
+
+#endif // _IMTP_HANDLE_H
+
diff --git a/media/mtp/MtpDataPacket.cpp b/media/mtp/MtpDataPacket.cpp
index 0e9bc34..d1c71d7 100644
--- a/media/mtp/MtpDataPacket.cpp
+++ b/media/mtp/MtpDataPacket.cpp
@@ -24,6 +24,7 @@
 #include <sys/types.h>
 #include <usbhost/usbhost.h>
 #include "MtpStringBuffer.h"
+#include "IMtpHandle.h"
 
 namespace android {
 
@@ -438,9 +439,9 @@
         putUInt16(0);
 }
 
-#ifdef MTP_DEVICE 
-int MtpDataPacket::read(int fd) {
-    int ret = ::read(fd, mBuffer, MTP_BUFFER_SIZE);
+#ifdef MTP_DEVICE
+int MtpDataPacket::read(IMtpHandle *h) {
+    int ret = h->read(mBuffer, MTP_BUFFER_SIZE);
     if (ret < MTP_CONTAINER_HEADER_SIZE)
         return -1;
     mPacketSize = ret;
@@ -448,20 +449,20 @@
     return ret;
 }
 
-int MtpDataPacket::write(int fd) {
+int MtpDataPacket::write(IMtpHandle *h) {
     MtpPacket::putUInt32(MTP_CONTAINER_LENGTH_OFFSET, mPacketSize);
     MtpPacket::putUInt16(MTP_CONTAINER_TYPE_OFFSET, MTP_CONTAINER_TYPE_DATA);
-    int ret = ::write(fd, mBuffer, mPacketSize);
+    int ret = h->write(mBuffer, mPacketSize);
     return (ret < 0 ? ret : 0);
 }
 
-int MtpDataPacket::writeData(int fd, void* data, uint32_t length) {
+int MtpDataPacket::writeData(IMtpHandle *h, void* data, uint32_t length) {
     allocate(length + MTP_CONTAINER_HEADER_SIZE);
     memcpy(mBuffer + MTP_CONTAINER_HEADER_SIZE, data, length);
     length += MTP_CONTAINER_HEADER_SIZE;
     MtpPacket::putUInt32(MTP_CONTAINER_LENGTH_OFFSET, length);
     MtpPacket::putUInt16(MTP_CONTAINER_TYPE_OFFSET, MTP_CONTAINER_TYPE_DATA);
-    int ret = ::write(fd, mBuffer, length);
+    int ret = h->write(mBuffer, length);
     return (ret < 0 ? ret : 0);
 }
 
@@ -519,7 +520,7 @@
 
 // Wait for result of readDataAsync
 int MtpDataPacket::readDataWait(struct usb_device *device) {
-    struct usb_request *req = usb_request_wait(device);
+    struct usb_request *req = usb_request_wait(device, -1);
     return (req ? req->actual_length : -1);
 }
 
diff --git a/media/mtp/MtpDataPacket.h b/media/mtp/MtpDataPacket.h
index 82e0ee4..a449d6f 100644
--- a/media/mtp/MtpDataPacket.h
+++ b/media/mtp/MtpDataPacket.h
@@ -20,6 +20,7 @@
 #include "MtpPacket.h"
 #include "mtp.h"
 
+class IMtpHandle;
 struct usb_device;
 struct usb_request;
 
@@ -94,12 +95,12 @@
     inline void         putEmptyArray() { putUInt32(0); }
 
 #ifdef MTP_DEVICE
-    // fill our buffer with data from the given file descriptor
-    int                 read(int fd);
+    // fill our buffer with data from the given usb handle
+    int                 read(IMtpHandle *h);
 
-    // write our data to the given file descriptor
-    int                 write(int fd);
-    int                 writeData(int fd, void* data, uint32_t length);
+    // write our data to the given usb handle
+    int                 write(IMtpHandle *h);
+    int                 writeData(IMtpHandle *h, void* data, uint32_t length);
 #endif
 
 #ifdef MTP_HOST
diff --git a/media/mtp/MtpDevHandle.cpp b/media/mtp/MtpDevHandle.cpp
new file mode 100644
index 0000000..9aa0aec
--- /dev/null
+++ b/media/mtp/MtpDevHandle.cpp
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or         implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <utils/Log.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <cutils/properties.h>
+#include <dirent.h>
+#include <errno.h>
+#include <linux/usb/ch9.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/endian.h>
+#include <unistd.h>
+
+#include <android-base/logging.h>
+#include <android-base/unique_fd.h>
+#include "IMtpHandle.h"
+
+constexpr char mtp_dev_path[] = "/dev/mtp_usb";
+
+class MtpDevHandle : public IMtpHandle {
+private:
+    android::base::unique_fd mFd;
+
+public:
+    MtpDevHandle();
+    ~MtpDevHandle();
+    int read(void *data, int len);
+    int write(const void *data, int len);
+
+    int receiveFile(mtp_file_range mfr, bool);
+    int sendFile(mtp_file_range mfr);
+    int sendEvent(mtp_event me);
+
+    int start();
+    void close();
+
+    int configure(bool ptp);
+};
+
+MtpDevHandle::MtpDevHandle()
+    : mFd(-1) {};
+
+MtpDevHandle::~MtpDevHandle() {}
+
+int MtpDevHandle::read(void *data, int len) {
+    return ::read(mFd, data, len);
+}
+
+int MtpDevHandle::write(const void *data, int len) {
+    return ::write(mFd, data, len);
+}
+
+int MtpDevHandle::receiveFile(mtp_file_range mfr, bool) {
+    return ioctl(mFd, MTP_RECEIVE_FILE, reinterpret_cast<unsigned long>(&mfr));
+}
+
+int MtpDevHandle::sendFile(mtp_file_range mfr) {
+    return ioctl(mFd, MTP_SEND_FILE_WITH_HEADER, reinterpret_cast<unsigned long>(&mfr));
+}
+
+int MtpDevHandle::sendEvent(mtp_event me) {
+    return ioctl(mFd, MTP_SEND_EVENT, reinterpret_cast<unsigned long>(&me));
+}
+
+int MtpDevHandle::start() {
+    mFd = android::base::unique_fd(TEMP_FAILURE_RETRY(open(mtp_dev_path, O_RDWR)));
+    if (mFd == -1) return -1;
+    return 0;
+}
+
+void MtpDevHandle::close() {
+    mFd.reset();
+}
+
+int MtpDevHandle::configure(bool) {
+    // Nothing to do, driver can configure itself
+    return 0;
+}
+
+IMtpHandle *get_mtp_handle() {
+    return new MtpDevHandle();
+}
diff --git a/media/mtp/MtpDevice.cpp b/media/mtp/MtpDevice.cpp
index e3d2ec6..0bf7854 100644
--- a/media/mtp/MtpDevice.cpp
+++ b/media/mtp/MtpDevice.cpp
@@ -39,6 +39,12 @@
 
 namespace android {
 
+namespace {
+
+static constexpr int USB_CONTROL_TRANSFER_TIMEOUT_MS = 200;
+
+}  // namespace
+
 #if 0
 static bool isMtpDevice(uint16_t vendor, uint16_t product) {
     // Sandisk Sansa Fuze
@@ -84,15 +90,18 @@
                 interface->bInterfaceSubClass == 1 && // Still Image Capture
                 interface->bInterfaceProtocol == 1)     // Picture Transfer Protocol (PIMA 15470)
             {
-                char* manufacturerName = usb_device_get_manufacturer_name(device);
-                char* productName = usb_device_get_product_name(device);
+                char* manufacturerName = usb_device_get_manufacturer_name(device,
+                        USB_CONTROL_TRANSFER_TIMEOUT_MS);
+                char* productName = usb_device_get_product_name(device,
+                        USB_CONTROL_TRANSFER_TIMEOUT_MS);
                 ALOGD("Found camera: \"%s\" \"%s\"\n", manufacturerName, productName);
                 free(manufacturerName);
                 free(productName);
             } else if (interface->bInterfaceClass == 0xFF &&
                     interface->bInterfaceSubClass == 0xFF &&
                     interface->bInterfaceProtocol == 0) {
-                char* interfaceName = usb_device_get_string(device, interface->iInterface);
+                char* interfaceName = usb_device_get_string(device, interface->iInterface,
+                        USB_CONTROL_TRANSFER_TIMEOUT_MS);
                 if (!interfaceName) {
                     continue;
                 } else if (strcmp(interfaceName, "MTP")) {
@@ -102,8 +111,10 @@
                 free(interfaceName);
 
                 // Looks like an android style MTP device
-                char* manufacturerName = usb_device_get_manufacturer_name(device);
-                char* productName = usb_device_get_product_name(device);
+                char* manufacturerName = usb_device_get_manufacturer_name(device,
+                        USB_CONTROL_TRANSFER_TIMEOUT_MS);
+                char* productName = usb_device_get_product_name(device,
+                        USB_CONTROL_TRANSFER_TIMEOUT_MS);
                 ALOGD("Found MTP device: \"%s\" \"%s\"\n", manufacturerName, productName);
                 free(manufacturerName);
                 free(productName);
@@ -266,19 +277,20 @@
 }
 
 void MtpDevice::print() {
-    if (mDeviceInfo) {
-        mDeviceInfo->print();
+    if (!mDeviceInfo)
+        return;
 
-        if (mDeviceInfo->mDeviceProperties) {
-            ALOGI("***** DEVICE PROPERTIES *****\n");
-            int count = mDeviceInfo->mDeviceProperties->size();
-            for (int i = 0; i < count; i++) {
-                MtpDeviceProperty propCode = (*mDeviceInfo->mDeviceProperties)[i];
-                MtpProperty* property = getDevicePropDesc(propCode);
-                if (property) {
-                    property->print();
-                    delete property;
-                }
+    mDeviceInfo->print();
+
+    if (mDeviceInfo->mDeviceProperties) {
+        ALOGI("***** DEVICE PROPERTIES *****\n");
+        int count = mDeviceInfo->mDeviceProperties->size();
+        for (int i = 0; i < count; i++) {
+            MtpDeviceProperty propCode = (*mDeviceInfo->mDeviceProperties)[i];
+            MtpProperty* property = getDevicePropDesc(propCode);
+            if (property) {
+                property->print();
+                delete property;
             }
         }
     }
diff --git a/media/mtp/MtpDevice.h b/media/mtp/MtpDevice.h
index c84c842..a9a3e0e 100644
--- a/media/mtp/MtpDevice.h
+++ b/media/mtp/MtpDevice.h
@@ -107,7 +107,7 @@
     bool                    sendObject(MtpObjectHandle handle, int size, int srcFD);
     bool                    deleteObject(MtpObjectHandle handle);
     MtpObjectHandle         getParent(MtpObjectHandle handle);
-    MtpObjectHandle         getStorageID(MtpObjectHandle handle);
+    MtpStorageID            getStorageID(MtpObjectHandle handle);
 
     MtpObjectPropertyList*  getObjectPropsSupported(MtpObjectFormat format);
 
diff --git a/media/mtp/MtpDeviceInfo.cpp b/media/mtp/MtpDeviceInfo.cpp
index 3e1dff7..3d5cb06 100644
--- a/media/mtp/MtpDeviceInfo.cpp
+++ b/media/mtp/MtpDeviceInfo.cpp
@@ -69,6 +69,7 @@
 
     if (!packet.getString(string)) return false;
     mVendorExtensionDesc = strdup((const char *)string);
+    if (!mVendorExtensionDesc) return false;
 
     if (!packet.getUInt16(mFunctionalMode)) return false;
     mOperations = packet.getAUInt16();
@@ -84,12 +85,16 @@
 
     if (!packet.getString(string)) return false;
     mManufacturer = strdup((const char *)string);
+    if (!mManufacturer) return false;
     if (!packet.getString(string)) return false;
     mModel = strdup((const char *)string);
+    if (!mModel) return false;
     if (!packet.getString(string)) return false;
     mVersion = strdup((const char *)string);
+    if (!mVersion) return false;
     if (!packet.getString(string)) return false;
     mSerial = strdup((const char *)string);
+    if (!mSerial) return false;
 
     return true;
 }
diff --git a/media/mtp/MtpEventPacket.cpp b/media/mtp/MtpEventPacket.cpp
index 8e13ea9..921ecbd 100644
--- a/media/mtp/MtpEventPacket.cpp
+++ b/media/mtp/MtpEventPacket.cpp
@@ -19,12 +19,8 @@
 #include <stdio.h>
 #include <sys/types.h>
 #include <fcntl.h>
-#include <sys/ioctl.h>
 
-#ifdef MTP_DEVICE
-#include <linux/usb/f_mtp.h>
-#endif
-
+#include "IMtpHandle.h"
 #include "MtpEventPacket.h"
 
 #include <usbhost/usbhost.h>
@@ -40,7 +36,7 @@
 }
 
 #ifdef MTP_DEVICE
-int MtpEventPacket::write(int fd) {
+int MtpEventPacket::write(IMtpHandle *h) {
     struct mtp_event    event;
 
     putUInt32(MTP_CONTAINER_LENGTH_OFFSET, mPacketSize);
@@ -48,7 +44,7 @@
 
     event.data = mBuffer;
     event.length = mPacketSize;
-    int ret = ::ioctl(fd, MTP_SEND_EVENT, (unsigned long)&event);
+    int ret = h->sendEvent(event);
     return (ret < 0 ? ret : 0);
 }
 #endif
@@ -66,7 +62,7 @@
 }
 
 int MtpEventPacket::readResponse(struct usb_device *device) {
-    struct usb_request* const req = usb_request_wait(device);
+    struct usb_request* const req = usb_request_wait(device, -1);
     if (req) {
         mPacketSize = req->actual_length;
         return req->actual_length;
diff --git a/media/mtp/MtpEventPacket.h b/media/mtp/MtpEventPacket.h
index a8779fd..3f3b6a3 100644
--- a/media/mtp/MtpEventPacket.h
+++ b/media/mtp/MtpEventPacket.h
@@ -20,6 +20,8 @@
 #include "MtpPacket.h"
 #include "mtp.h"
 
+class IMtpHandle;
+
 namespace android {
 
 class MtpEventPacket : public MtpPacket {
@@ -29,8 +31,8 @@
     virtual             ~MtpEventPacket();
 
 #ifdef MTP_DEVICE
-    // write our data to the given file descriptor
-    int                 write(int fd);
+    // write our data to the given usb handle
+    int                 write(IMtpHandle *h);
 #endif
 
 #ifdef MTP_HOST
diff --git a/media/mtp/MtpFfsHandle.cpp b/media/mtp/MtpFfsHandle.cpp
new file mode 100644
index 0000000..c50af2f
--- /dev/null
+++ b/media/mtp/MtpFfsHandle.cpp
@@ -0,0 +1,732 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android-base/properties.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/functionfs.h>
+#include <mutex>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/endian.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <vector>
+
+#include "AsyncIO.h"
+#include "MtpFfsHandle.h"
+#include "mtp.h"
+
+#define cpu_to_le16(x)  htole16(x)
+#define cpu_to_le32(x)  htole32(x)
+
+#define FUNCTIONFS_ENDPOINT_ALLOC       _IOR('g', 231, __u32)
+
+namespace {
+
+constexpr char FFS_MTP_EP_IN[] = "/dev/usb-ffs/mtp/ep1";
+constexpr char FFS_MTP_EP_OUT[] = "/dev/usb-ffs/mtp/ep2";
+constexpr char FFS_MTP_EP_INTR[] = "/dev/usb-ffs/mtp/ep3";
+
+constexpr int MAX_PACKET_SIZE_FS = 64;
+constexpr int MAX_PACKET_SIZE_HS = 512;
+constexpr int MAX_PACKET_SIZE_SS = 1024;
+
+// Must be divisible by all max packet size values
+constexpr int MAX_FILE_CHUNK_SIZE = 3145728;
+
+// Safe values since some devices cannot handle large DMAs
+// To get good performance, override these with
+// higher values per device using the properties
+// sys.usb.ffs.max_read and sys.usb.ffs.max_write
+constexpr int USB_FFS_MAX_WRITE = MTP_BUFFER_SIZE;
+constexpr int USB_FFS_MAX_READ = MTP_BUFFER_SIZE;
+
+static_assert(USB_FFS_MAX_WRITE > 0, "Max r/w values must be > 0!");
+static_assert(USB_FFS_MAX_READ > 0, "Max r/w values must be > 0!");
+
+constexpr unsigned int MAX_MTP_FILE_SIZE = 0xFFFFFFFF;
+
+constexpr size_t ENDPOINT_ALLOC_RETRIES = 10;
+
+struct func_desc {
+    struct usb_interface_descriptor intf;
+    struct usb_endpoint_descriptor_no_audio sink;
+    struct usb_endpoint_descriptor_no_audio source;
+    struct usb_endpoint_descriptor_no_audio intr;
+} __attribute__((packed));
+
+struct ss_func_desc {
+    struct usb_interface_descriptor intf;
+    struct usb_endpoint_descriptor_no_audio sink;
+    struct usb_ss_ep_comp_descriptor sink_comp;
+    struct usb_endpoint_descriptor_no_audio source;
+    struct usb_ss_ep_comp_descriptor source_comp;
+    struct usb_endpoint_descriptor_no_audio intr;
+    struct usb_ss_ep_comp_descriptor intr_comp;
+} __attribute__((packed));
+
+struct desc_v1 {
+    struct usb_functionfs_descs_head_v1 {
+        __le32 magic;
+        __le32 length;
+        __le32 fs_count;
+        __le32 hs_count;
+    } __attribute__((packed)) header;
+    struct func_desc fs_descs, hs_descs;
+} __attribute__((packed));
+
+struct desc_v2 {
+    struct usb_functionfs_descs_head_v2 header;
+    // The rest of the structure depends on the flags in the header.
+    __le32 fs_count;
+    __le32 hs_count;
+    __le32 ss_count;
+    struct func_desc fs_descs, hs_descs;
+    struct ss_func_desc ss_descs;
+} __attribute__((packed));
+
+const struct usb_interface_descriptor mtp_interface_desc = {
+    .bLength = USB_DT_INTERFACE_SIZE,
+    .bDescriptorType = USB_DT_INTERFACE,
+    .bInterfaceNumber = 0,
+    .bNumEndpoints = 3,
+    .bInterfaceClass = USB_CLASS_STILL_IMAGE,
+    .bInterfaceSubClass = 1,
+    .bInterfaceProtocol = 1,
+    .iInterface = 1,
+};
+
+const struct usb_interface_descriptor ptp_interface_desc = {
+    .bLength = USB_DT_INTERFACE_SIZE,
+    .bDescriptorType = USB_DT_INTERFACE,
+    .bInterfaceNumber = 0,
+    .bNumEndpoints = 3,
+    .bInterfaceClass = USB_CLASS_STILL_IMAGE,
+    .bInterfaceSubClass = 1,
+    .bInterfaceProtocol = 1,
+};
+
+const struct usb_endpoint_descriptor_no_audio fs_sink = {
+    .bLength = USB_DT_ENDPOINT_SIZE,
+    .bDescriptorType = USB_DT_ENDPOINT,
+    .bEndpointAddress = 1 | USB_DIR_IN,
+    .bmAttributes = USB_ENDPOINT_XFER_BULK,
+    .wMaxPacketSize = MAX_PACKET_SIZE_FS,
+};
+
+const struct usb_endpoint_descriptor_no_audio fs_source = {
+    .bLength = USB_DT_ENDPOINT_SIZE,
+    .bDescriptorType = USB_DT_ENDPOINT,
+    .bEndpointAddress = 2 | USB_DIR_OUT,
+    .bmAttributes = USB_ENDPOINT_XFER_BULK,
+    .wMaxPacketSize = MAX_PACKET_SIZE_FS,
+};
+
+const struct usb_endpoint_descriptor_no_audio fs_intr = {
+    .bLength = USB_DT_ENDPOINT_SIZE,
+    .bDescriptorType = USB_DT_ENDPOINT,
+    .bEndpointAddress = 3 | USB_DIR_IN,
+    .bmAttributes = USB_ENDPOINT_XFER_INT,
+    .wMaxPacketSize = MAX_PACKET_SIZE_FS,
+    .bInterval = 6,
+};
+
+const struct usb_endpoint_descriptor_no_audio hs_sink = {
+    .bLength = USB_DT_ENDPOINT_SIZE,
+    .bDescriptorType = USB_DT_ENDPOINT,
+    .bEndpointAddress = 1 | USB_DIR_IN,
+    .bmAttributes = USB_ENDPOINT_XFER_BULK,
+    .wMaxPacketSize = MAX_PACKET_SIZE_HS,
+};
+
+const struct usb_endpoint_descriptor_no_audio hs_source = {
+    .bLength = USB_DT_ENDPOINT_SIZE,
+    .bDescriptorType = USB_DT_ENDPOINT,
+    .bEndpointAddress = 2 | USB_DIR_OUT,
+    .bmAttributes = USB_ENDPOINT_XFER_BULK,
+    .wMaxPacketSize = MAX_PACKET_SIZE_HS,
+};
+
+const struct usb_endpoint_descriptor_no_audio hs_intr = {
+    .bLength = USB_DT_ENDPOINT_SIZE,
+    .bDescriptorType = USB_DT_ENDPOINT,
+    .bEndpointAddress = 3 | USB_DIR_IN,
+    .bmAttributes = USB_ENDPOINT_XFER_INT,
+    .wMaxPacketSize = MAX_PACKET_SIZE_HS,
+    .bInterval = 6,
+};
+
+const struct usb_endpoint_descriptor_no_audio ss_sink = {
+    .bLength = USB_DT_ENDPOINT_SIZE,
+    .bDescriptorType = USB_DT_ENDPOINT,
+    .bEndpointAddress = 1 | USB_DIR_IN,
+    .bmAttributes = USB_ENDPOINT_XFER_BULK,
+    .wMaxPacketSize = MAX_PACKET_SIZE_SS,
+};
+
+const struct usb_endpoint_descriptor_no_audio ss_source = {
+    .bLength = USB_DT_ENDPOINT_SIZE,
+    .bDescriptorType = USB_DT_ENDPOINT,
+    .bEndpointAddress = 2 | USB_DIR_OUT,
+    .bmAttributes = USB_ENDPOINT_XFER_BULK,
+    .wMaxPacketSize = MAX_PACKET_SIZE_SS,
+};
+
+const struct usb_endpoint_descriptor_no_audio ss_intr = {
+    .bLength = USB_DT_ENDPOINT_SIZE,
+    .bDescriptorType = USB_DT_ENDPOINT,
+    .bEndpointAddress = 3 | USB_DIR_IN,
+    .bmAttributes = USB_ENDPOINT_XFER_INT,
+    .wMaxPacketSize = MAX_PACKET_SIZE_SS,
+    .bInterval = 6,
+};
+
+const struct usb_ss_ep_comp_descriptor ss_sink_comp = {
+    .bLength = sizeof(ss_sink_comp),
+    .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
+    .bMaxBurst = 6,
+};
+
+const struct usb_ss_ep_comp_descriptor ss_source_comp = {
+    .bLength = sizeof(ss_source_comp),
+    .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
+    .bMaxBurst = 6,
+};
+
+const struct usb_ss_ep_comp_descriptor ss_intr_comp = {
+    .bLength = sizeof(ss_intr_comp),
+    .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
+};
+
+const struct func_desc mtp_fs_descriptors = {
+    .intf = mtp_interface_desc,
+    .sink = fs_sink,
+    .source = fs_source,
+    .intr = fs_intr,
+};
+
+const struct func_desc mtp_hs_descriptors = {
+    .intf = mtp_interface_desc,
+    .sink = hs_sink,
+    .source = hs_source,
+    .intr = hs_intr,
+};
+
+const struct ss_func_desc mtp_ss_descriptors = {
+    .intf = mtp_interface_desc,
+    .sink = ss_sink,
+    .sink_comp = ss_sink_comp,
+    .source = ss_source,
+    .source_comp = ss_source_comp,
+    .intr = ss_intr,
+    .intr_comp = ss_intr_comp,
+};
+
+const struct func_desc ptp_fs_descriptors = {
+    .intf = ptp_interface_desc,
+    .sink = fs_sink,
+    .source = fs_source,
+    .intr = fs_intr,
+};
+
+const struct func_desc ptp_hs_descriptors = {
+    .intf = ptp_interface_desc,
+    .sink = hs_sink,
+    .source = hs_source,
+    .intr = hs_intr,
+};
+
+const struct ss_func_desc ptp_ss_descriptors = {
+    .intf = ptp_interface_desc,
+    .sink = ss_sink,
+    .sink_comp = ss_sink_comp,
+    .source = ss_source,
+    .source_comp = ss_source_comp,
+    .intr = ss_intr,
+    .intr_comp = ss_intr_comp,
+};
+
+#define STR_INTERFACE "MTP"
+const struct {
+    struct usb_functionfs_strings_head header;
+    struct {
+        __le16 code;
+        const char str1[sizeof(STR_INTERFACE)];
+    } __attribute__((packed)) lang0;
+} __attribute__((packed)) strings = {
+    .header = {
+        .magic = cpu_to_le32(FUNCTIONFS_STRINGS_MAGIC),
+        .length = cpu_to_le32(sizeof(strings)),
+        .str_count = cpu_to_le32(1),
+        .lang_count = cpu_to_le32(1),
+    },
+    .lang0 = {
+        .code = cpu_to_le16(0x0409),
+        .str1 = STR_INTERFACE,
+    },
+};
+
+} // anonymous namespace
+
+namespace android {
+
+MtpFfsHandle::MtpFfsHandle() :
+    mMaxWrite(USB_FFS_MAX_WRITE),
+    mMaxRead(USB_FFS_MAX_READ) {}
+
+MtpFfsHandle::~MtpFfsHandle() {}
+
+void MtpFfsHandle::closeEndpoints() {
+    mIntr.reset();
+    mBulkIn.reset();
+    mBulkOut.reset();
+}
+
+bool MtpFfsHandle::initFunctionfs() {
+    ssize_t ret;
+    struct desc_v1 v1_descriptor;
+    struct desc_v2 v2_descriptor;
+
+    v2_descriptor.header.magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC_V2);
+    v2_descriptor.header.length = cpu_to_le32(sizeof(v2_descriptor));
+    v2_descriptor.header.flags = FUNCTIONFS_HAS_FS_DESC | FUNCTIONFS_HAS_HS_DESC |
+                                 FUNCTIONFS_HAS_SS_DESC;
+    v2_descriptor.fs_count = 4;
+    v2_descriptor.hs_count = 4;
+    v2_descriptor.ss_count = 7;
+    v2_descriptor.fs_descs = mPtp ? ptp_fs_descriptors : mtp_fs_descriptors;
+    v2_descriptor.hs_descs = mPtp ? ptp_hs_descriptors : mtp_hs_descriptors;
+    v2_descriptor.ss_descs = mPtp ? ptp_ss_descriptors : mtp_ss_descriptors;
+
+    if (mControl < 0) { // might have already done this before
+        mControl.reset(TEMP_FAILURE_RETRY(open(FFS_MTP_EP0, O_RDWR)));
+        if (mControl < 0) {
+            PLOG(ERROR) << FFS_MTP_EP0 << ": cannot open control endpoint";
+            goto err;
+        }
+
+        ret = TEMP_FAILURE_RETRY(::write(mControl, &v2_descriptor, sizeof(v2_descriptor)));
+        if (ret < 0) {
+            v1_descriptor.header.magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC);
+            v1_descriptor.header.length = cpu_to_le32(sizeof(v1_descriptor));
+            v1_descriptor.header.fs_count = 4;
+            v1_descriptor.header.hs_count = 4;
+            v1_descriptor.fs_descs = mPtp ? ptp_fs_descriptors : mtp_fs_descriptors;
+            v1_descriptor.hs_descs = mPtp ? ptp_hs_descriptors : mtp_hs_descriptors;
+            PLOG(ERROR) << FFS_MTP_EP0 << "Switching to V1 descriptor format";
+            ret = TEMP_FAILURE_RETRY(::write(mControl, &v1_descriptor, sizeof(v1_descriptor)));
+            if (ret < 0) {
+                PLOG(ERROR) << FFS_MTP_EP0 << "Writing descriptors failed";
+                goto err;
+            }
+        }
+        ret = TEMP_FAILURE_RETRY(::write(mControl, &strings, sizeof(strings)));
+        if (ret < 0) {
+            PLOG(ERROR) << FFS_MTP_EP0 << "Writing strings failed";
+            goto err;
+        }
+    }
+    if (mBulkIn > -1 || mBulkOut > -1 || mIntr > -1)
+        LOG(WARNING) << "Endpoints were not closed before configure!";
+
+    return true;
+
+err:
+    closeConfig();
+    return false;
+}
+
+void MtpFfsHandle::closeConfig() {
+    mControl.reset();
+}
+
+int MtpFfsHandle::writeHandle(int fd, const void* data, int len) {
+    LOG(VERBOSE) << "MTP about to write fd = " << fd << ", len=" << len;
+    int ret = 0;
+    const char* buf = static_cast<const char*>(data);
+    while (len > 0) {
+        int write_len = std::min(mMaxWrite, len);
+        int n = TEMP_FAILURE_RETRY(::write(fd, buf, write_len));
+
+        if (n < 0) {
+            PLOG(ERROR) << "write ERROR: fd = " << fd << ", n = " << n;
+            return -1;
+        } else if (n < write_len) {
+            errno = EIO;
+            PLOG(ERROR) << "less written than expected";
+            return -1;
+        }
+        buf += n;
+        len -= n;
+        ret += n;
+    }
+    return ret;
+}
+
+int MtpFfsHandle::readHandle(int fd, void* data, int len) {
+    LOG(VERBOSE) << "MTP about to read fd = " << fd << ", len=" << len;
+    int ret = 0;
+    char* buf = static_cast<char*>(data);
+    while (len > 0) {
+        int read_len = std::min(mMaxRead, len);
+        int n = TEMP_FAILURE_RETRY(::read(fd, buf, read_len));
+        if (n < 0) {
+            PLOG(ERROR) << "read ERROR: fd = " << fd << ", n = " << n;
+            return -1;
+        }
+        ret += n;
+        if (n < read_len) // done reading early
+            break;
+        buf += n;
+        len -= n;
+    }
+    return ret;
+}
+
+int MtpFfsHandle::spliceReadHandle(int fd, int pipe_out, int len) {
+    LOG(VERBOSE) << "MTP about to splice read fd = " << fd << ", len=" << len;
+    int ret = 0;
+    loff_t dummyoff;
+    while (len > 0) {
+        int read_len = std::min(mMaxRead, len);
+        dummyoff = 0;
+        int n = TEMP_FAILURE_RETRY(splice(fd, &dummyoff, pipe_out, nullptr, read_len, 0));
+        if (n < 0) {
+            PLOG(ERROR) << "splice read ERROR: fd = " << fd << ", n = " << n;
+            return -1;
+        }
+        ret += n;
+        if (n < read_len) // done reading early
+            break;
+        len -= n;
+    }
+    return ret;
+}
+
+int MtpFfsHandle::read(void* data, int len) {
+    return readHandle(mBulkOut, data, len);
+}
+
+int MtpFfsHandle::write(const void* data, int len) {
+    return writeHandle(mBulkIn, data, len);
+}
+
+int MtpFfsHandle::start() {
+    mLock.lock();
+
+    mBulkIn.reset(TEMP_FAILURE_RETRY(open(FFS_MTP_EP_IN, O_RDWR)));
+    if (mBulkIn < 0) {
+        PLOG(ERROR) << FFS_MTP_EP_IN << ": cannot open bulk in ep";
+        return -1;
+    }
+
+    mBulkOut.reset(TEMP_FAILURE_RETRY(open(FFS_MTP_EP_OUT, O_RDWR)));
+    if (mBulkOut < 0) {
+        PLOG(ERROR) << FFS_MTP_EP_OUT << ": cannot open bulk out ep";
+        return -1;
+    }
+
+    mIntr.reset(TEMP_FAILURE_RETRY(open(FFS_MTP_EP_INTR, O_RDWR)));
+    if (mIntr < 0) {
+        PLOG(ERROR) << FFS_MTP_EP0 << ": cannot open intr ep";
+        return -1;
+    }
+
+    mBuffer1.resize(MAX_FILE_CHUNK_SIZE);
+    mBuffer2.resize(MAX_FILE_CHUNK_SIZE);
+    posix_madvise(mBuffer1.data(), MAX_FILE_CHUNK_SIZE,
+            POSIX_MADV_SEQUENTIAL | POSIX_MADV_WILLNEED);
+    posix_madvise(mBuffer2.data(), MAX_FILE_CHUNK_SIZE,
+            POSIX_MADV_SEQUENTIAL | POSIX_MADV_WILLNEED);
+
+    // Get device specific r/w size
+    mMaxWrite = android::base::GetIntProperty("sys.usb.ffs.max_write", USB_FFS_MAX_WRITE);
+    mMaxRead = android::base::GetIntProperty("sys.usb.ffs.max_read", USB_FFS_MAX_READ);
+
+    size_t attempts = 0;
+    while (mMaxWrite >= USB_FFS_MAX_WRITE && mMaxRead >= USB_FFS_MAX_READ &&
+            attempts < ENDPOINT_ALLOC_RETRIES) {
+        // If larger contiguous chunks of memory aren't available, attempt to try
+        // smaller allocations.
+        if (ioctl(mBulkIn, FUNCTIONFS_ENDPOINT_ALLOC, static_cast<__u32>(mMaxWrite)) ||
+            ioctl(mBulkOut, FUNCTIONFS_ENDPOINT_ALLOC, static_cast<__u32>(mMaxRead))) {
+            if (errno == ENODEV) {
+                // Driver hasn't enabled endpoints yet.
+                std::this_thread::sleep_for(std::chrono::milliseconds(100));
+                attempts += 1;
+                continue;
+            }
+            mMaxWrite /= 2;
+            mMaxRead /=2;
+        } else {
+            return 0;
+        }
+    }
+    // Try to start MtpServer anyway, with the smallest max r/w values
+    PLOG(ERROR) << "Functionfs could not allocate any memory!";
+    return 0;
+}
+
+int MtpFfsHandle::configure(bool usePtp) {
+    // Wait till previous server invocation has closed
+    if (!mLock.try_lock_for(std::chrono::milliseconds(1000))) {
+        LOG(ERROR) << "MtpServer was unable to get configure lock";
+        return -1;
+    }
+    int ret = 0;
+
+    // If ptp is changed, the configuration must be rewritten
+    if (mPtp != usePtp) {
+        closeEndpoints();
+        closeConfig();
+    }
+    mPtp = usePtp;
+
+    if (!initFunctionfs()) {
+        ret = -1;
+    }
+    mLock.unlock();
+    return ret;
+}
+
+void MtpFfsHandle::close() {
+    closeEndpoints();
+    mLock.unlock();
+}
+
+/* Read from USB and write to a local file. */
+int MtpFfsHandle::receiveFile(mtp_file_range mfr, bool zero_packet) {
+    // When receiving files, the incoming length is given in 32 bits.
+    // A >4G file is given as 0xFFFFFFFF
+    uint32_t file_length = mfr.length;
+    uint64_t offset = mfr.offset;
+    struct usb_endpoint_descriptor mBulkOut_desc;
+    int packet_size;
+
+    if (ioctl(mBulkOut, FUNCTIONFS_ENDPOINT_DESC, reinterpret_cast<unsigned long>(&mBulkOut_desc))) {
+        PLOG(ERROR) << "Could not get FFS bulk-out descriptor";
+        packet_size = MAX_PACKET_SIZE_HS;
+    } else {
+        packet_size = mBulkOut_desc.wMaxPacketSize;
+    }
+
+    char *data = mBuffer1.data();
+    char *data2 = mBuffer2.data();
+
+    struct aiocb aio;
+    aio.aio_fildes = mfr.fd;
+    aio.aio_buf = nullptr;
+    struct aiocb *aiol[] = {&aio};
+    int ret = -1;
+    size_t length;
+    bool read = false;
+    bool write = false;
+
+    posix_fadvise(mfr.fd, 0, 0, POSIX_FADV_SEQUENTIAL | POSIX_FADV_NOREUSE);
+
+    // Break down the file into pieces that fit in buffers
+    while (file_length > 0 || write) {
+        if (file_length > 0) {
+            length = std::min(static_cast<uint32_t>(MAX_FILE_CHUNK_SIZE), file_length);
+
+            // Read data from USB, handle errors after waiting for write thread.
+            ret = readHandle(mBulkOut, data, length);
+
+            if (file_length != MAX_MTP_FILE_SIZE && ret < static_cast<int>(length)) {
+                ret = -1;
+                errno = EIO;
+            }
+            read = true;
+        }
+
+        if (write) {
+            // get the return status of the last write request
+            aio_suspend(aiol, 1, nullptr);
+
+            int written = aio_return(&aio);
+            if (written == -1) {
+                errno = aio_error(&aio);
+                return -1;
+            }
+            if (static_cast<size_t>(written) < aio.aio_nbytes) {
+                errno = EIO;
+                return -1;
+            }
+            write = false;
+        }
+
+        // If there was an error reading above
+        if (ret == -1) {
+            return -1;
+        }
+
+        if (read) {
+            if (file_length == MAX_MTP_FILE_SIZE) {
+                // For larger files, receive until a short packet is received.
+                if (static_cast<size_t>(ret) < length) {
+                    file_length = 0;
+                }
+            } else {
+                // Receive an empty packet if size is a multiple of the endpoint size.
+                file_length -= ret;
+            }
+            // Enqueue a new write request
+            aio.aio_buf = data;
+            aio.aio_sink = mfr.fd;
+            aio.aio_offset = offset;
+            aio.aio_nbytes = ret;
+            aio_write(&aio);
+
+            offset += ret;
+            std::swap(data, data2);
+
+            write = true;
+            read = false;
+        }
+    }
+    if (ret % packet_size == 0 || zero_packet) {
+        if (TEMP_FAILURE_RETRY(::read(mBulkOut, data, packet_size)) != 0) {
+            return -1;
+        }
+    }
+    return 0;
+}
+
+/* Read from a local file and send over USB. */
+int MtpFfsHandle::sendFile(mtp_file_range mfr) {
+    uint64_t file_length = mfr.length;
+    uint32_t given_length = std::min(static_cast<uint64_t>(MAX_MTP_FILE_SIZE),
+            file_length + sizeof(mtp_data_header));
+    uint64_t offset = mfr.offset;
+    struct usb_endpoint_descriptor mBulkIn_desc;
+    int packet_size;
+
+    if (ioctl(mBulkIn, FUNCTIONFS_ENDPOINT_DESC, reinterpret_cast<unsigned long>(&mBulkIn_desc))) {
+        PLOG(ERROR) << "Could not get FFS bulk-in descriptor";
+        packet_size = MAX_PACKET_SIZE_HS;
+    } else {
+        packet_size = mBulkIn_desc.wMaxPacketSize;
+    }
+
+    // If file_length is larger than a size_t, truncating would produce the wrong comparison.
+    // Instead, promote the left side to 64 bits, then truncate the small result.
+    int init_read_len = std::min(
+            static_cast<uint64_t>(packet_size - sizeof(mtp_data_header)), file_length);
+
+    char *data = mBuffer1.data();
+    char *data2 = mBuffer2.data();
+
+    posix_fadvise(mfr.fd, 0, 0, POSIX_FADV_SEQUENTIAL | POSIX_FADV_NOREUSE);
+
+    struct aiocb aio;
+    aio.aio_fildes = mfr.fd;
+    struct aiocb *aiol[] = {&aio};
+    int ret, length;
+    int error = 0;
+    bool read = false;
+    bool write = false;
+
+    // Send the header data
+    mtp_data_header *header = reinterpret_cast<mtp_data_header*>(data);
+    header->length = __cpu_to_le32(given_length);
+    header->type = __cpu_to_le16(2); /* data packet */
+    header->command = __cpu_to_le16(mfr.command);
+    header->transaction_id = __cpu_to_le32(mfr.transaction_id);
+
+    // Some hosts don't support header/data separation even though MTP allows it
+    // Handle by filling first packet with initial file data
+    if (TEMP_FAILURE_RETRY(pread(mfr.fd, reinterpret_cast<char*>(data) +
+                    sizeof(mtp_data_header), init_read_len, offset))
+            != init_read_len) return -1;
+    if (writeHandle(mBulkIn, data, sizeof(mtp_data_header) + init_read_len) == -1) return -1;
+    file_length -= init_read_len;
+    offset += init_read_len;
+    ret = init_read_len + sizeof(mtp_data_header);
+
+    // Break down the file into pieces that fit in buffers
+    while(file_length > 0) {
+        if (read) {
+            // Wait for the previous read to finish
+            aio_suspend(aiol, 1, nullptr);
+            ret = aio_return(&aio);
+            if (ret == -1) {
+                errno = aio_error(&aio);
+                return -1;
+            }
+            if (static_cast<size_t>(ret) < aio.aio_nbytes) {
+                errno = EIO;
+                return -1;
+            }
+
+            file_length -= ret;
+            offset += ret;
+            std::swap(data, data2);
+            read = false;
+            write = true;
+        }
+
+        if (error == -1) {
+            return -1;
+        }
+
+        if (file_length > 0) {
+            length = std::min(static_cast<uint64_t>(MAX_FILE_CHUNK_SIZE), file_length);
+            // Queue up another read
+            aio.aio_buf = data;
+            aio.aio_offset = offset;
+            aio.aio_nbytes = length;
+            aio_read(&aio);
+            read = true;
+        }
+
+        if (write) {
+            if (writeHandle(mBulkIn, data2, ret) == -1) {
+                error = -1;
+            }
+            write = false;
+        }
+    }
+
+    if (ret % packet_size == 0) {
+        // If the last packet wasn't short, send a final empty packet
+        if (TEMP_FAILURE_RETRY(::write(mBulkIn, data, 0)) != 0) {
+            return -1;
+        }
+    }
+
+    return 0;
+}
+
+int MtpFfsHandle::sendEvent(mtp_event me) {
+    unsigned length = me.length;
+    int ret = writeHandle(mIntr, me.data, length);
+    return static_cast<unsigned>(ret) == length ? 0 : -1;
+}
+
+} // namespace android
+
+IMtpHandle *get_ffs_handle() {
+    return new android::MtpFfsHandle();
+}
+
diff --git a/media/mtp/MtpFfsHandle.h b/media/mtp/MtpFfsHandle.h
new file mode 100644
index 0000000..98669ff
--- /dev/null
+++ b/media/mtp/MtpFfsHandle.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _MTP_FFS_HANDLE_H
+#define _MTP_FFS_HANDLE_H
+
+#include <android-base/unique_fd.h>
+#include <IMtpHandle.h>
+
+namespace android {
+
+class MtpFfsHandleTest;
+
+class MtpFfsHandle : public IMtpHandle {
+    friend class android::MtpFfsHandleTest;
+private:
+    int writeHandle(int fd, const void *data, int len);
+    int readHandle(int fd, void *data, int len);
+    int spliceReadHandle(int fd, int fd_out, int len);
+    bool initFunctionfs();
+    void closeConfig();
+    void closeEndpoints();
+
+    bool mPtp;
+
+    std::timed_mutex mLock;
+
+    android::base::unique_fd mControl;
+    // "in" from the host's perspective => sink for mtp server
+    android::base::unique_fd mBulkIn;
+    // "out" from the host's perspective => source for mtp server
+    android::base::unique_fd mBulkOut;
+    android::base::unique_fd mIntr;
+
+    int mMaxWrite;
+    int mMaxRead;
+
+    std::vector<char> mBuffer1;
+    std::vector<char> mBuffer2;
+
+public:
+    int read(void *data, int len);
+    int write(const void *data, int len);
+
+    int receiveFile(mtp_file_range mfr, bool zero_packet);
+    int sendFile(mtp_file_range mfr);
+    int sendEvent(mtp_event me);
+
+    /**
+     * Open ffs endpoints and allocate necessary kernel and user memory.
+     * Will sleep until endpoints are enabled, for up to 1 second.
+     */
+    int start();
+    void close();
+
+    int configure(bool ptp);
+
+    MtpFfsHandle();
+    ~MtpFfsHandle();
+};
+
+struct mtp_data_header {
+    /* length of packet, including this header */
+    __le32 length;
+    /* container type (2 for data packet) */
+    __le16 type;
+    /* MTP command code */
+    __le16 command;
+    /* MTP transaction ID */
+    __le32 transaction_id;
+};
+
+} // namespace android
+
+#endif // _MTP_FF_HANDLE_H
+
diff --git a/media/mtp/MtpObjectInfo.cpp b/media/mtp/MtpObjectInfo.cpp
index 0573104..43b745f 100644
--- a/media/mtp/MtpObjectInfo.cpp
+++ b/media/mtp/MtpObjectInfo.cpp
@@ -77,6 +77,7 @@
 
     if (!packet.getString(string)) return false;
     mName = strdup((const char *)string);
+    if (!mName) return false;
 
     if (!packet.getString(string)) return false;
     if (parseDateTime((const char*)string, time))
@@ -88,6 +89,7 @@
 
     if (!packet.getString(string)) return false;
     mKeywords = strdup((const char *)string);
+    if (!mKeywords) return false;
 
     return true;
 }
diff --git a/media/mtp/MtpObjectInfo.h b/media/mtp/MtpObjectInfo.h
index 86780f1..188f21c 100644
--- a/media/mtp/MtpObjectInfo.h
+++ b/media/mtp/MtpObjectInfo.h
@@ -47,7 +47,7 @@
     char*               mKeywords;
 
 public:
-                        MtpObjectInfo(MtpObjectHandle handle);
+    explicit            MtpObjectInfo(MtpObjectHandle handle);
     virtual             ~MtpObjectInfo();
 
     bool                read(MtpDataPacket& packet);
diff --git a/media/mtp/MtpPacket.cpp b/media/mtp/MtpPacket.cpp
index 35ecb4f..3dd4248 100644
--- a/media/mtp/MtpPacket.cpp
+++ b/media/mtp/MtpPacket.cpp
@@ -70,8 +70,8 @@
     char* bufptr = buffer;
 
     for (size_t i = 0; i < mPacketSize; i++) {
-        sprintf(bufptr, "%02X ", mBuffer[i]);
-        bufptr += strlen(bufptr);
+        bufptr += snprintf(bufptr, sizeof(buffer) - (bufptr - buffer), "%02X ",
+                           mBuffer[i]);
         if (i % DUMP_BYTES_PER_ROW == (DUMP_BYTES_PER_ROW - 1)) {
             ALOGV("%s", buffer);
             bufptr = buffer;
diff --git a/media/mtp/MtpPacket.h b/media/mtp/MtpPacket.h
index 0e96309..d47c91d 100644
--- a/media/mtp/MtpPacket.h
+++ b/media/mtp/MtpPacket.h
@@ -17,6 +17,8 @@
 #ifndef _MTP_PACKET_H
 #define _MTP_PACKET_H
 
+#include <android-base/macros.h>
+
 #include "MtpTypes.h"
 
 struct usb_device;
@@ -36,7 +38,7 @@
     size_t              mPacketSize;
 
 public:
-                        MtpPacket(int bufferSize);
+    explicit            MtpPacket(int bufferSize);
     virtual             ~MtpPacket();
 
     // sets packet size to the default container size and sets buffer to zero
@@ -66,6 +68,8 @@
     uint32_t            getUInt32(int offset) const;
     void                putUInt16(int offset, uint16_t value);
     void                putUInt32(int offset, uint32_t value);
+
+    DISALLOW_COPY_AND_ASSIGN(MtpPacket);
 };
 
 }; // namespace android
diff --git a/media/mtp/MtpRequestPacket.cpp b/media/mtp/MtpRequestPacket.cpp
index 471967f..e0e86a9 100644
--- a/media/mtp/MtpRequestPacket.cpp
+++ b/media/mtp/MtpRequestPacket.cpp
@@ -20,6 +20,7 @@
 #include <sys/types.h>
 #include <fcntl.h>
 
+#include "IMtpHandle.h"
 #include "MtpRequestPacket.h"
 
 #include <usbhost/usbhost.h>
@@ -36,8 +37,8 @@
 }
 
 #ifdef MTP_DEVICE
-int MtpRequestPacket::read(int fd) {
-    int ret = ::read(fd, mBuffer, mBufferSize);
+int MtpRequestPacket::read(IMtpHandle *h) {
+    int ret = h->read(mBuffer, mBufferSize);
     if (ret < 0) {
         // file read error
         return ret;
diff --git a/media/mtp/MtpRequestPacket.h b/media/mtp/MtpRequestPacket.h
index 79b798d..d1dc0ff 100644
--- a/media/mtp/MtpRequestPacket.h
+++ b/media/mtp/MtpRequestPacket.h
@@ -20,6 +20,7 @@
 #include "MtpPacket.h"
 #include "mtp.h"
 
+class IMtpHandle;
 struct usb_request;
 
 namespace android {
@@ -31,8 +32,8 @@
     virtual             ~MtpRequestPacket();
 
 #ifdef MTP_DEVICE
-    // fill our buffer with data from the given file descriptor
-    int                 read(int fd);
+    // fill our buffer with data from the given usb handle
+    int                 read(IMtpHandle *h);
 #endif
 
 #ifdef MTP_HOST
diff --git a/media/mtp/MtpResponsePacket.cpp b/media/mtp/MtpResponsePacket.cpp
index c2b41e4..f186b37 100644
--- a/media/mtp/MtpResponsePacket.cpp
+++ b/media/mtp/MtpResponsePacket.cpp
@@ -20,6 +20,7 @@
 #include <sys/types.h>
 #include <fcntl.h>
 
+#include "IMtpHandle.h"
 #include "MtpResponsePacket.h"
 
 #include <usbhost/usbhost.h>
@@ -35,10 +36,10 @@
 }
 
 #ifdef MTP_DEVICE
-int MtpResponsePacket::write(int fd) {
+int MtpResponsePacket::write(IMtpHandle *h) {
     putUInt32(MTP_CONTAINER_LENGTH_OFFSET, mPacketSize);
     putUInt16(MTP_CONTAINER_TYPE_OFFSET, MTP_CONTAINER_TYPE_RESPONSE);
-    int ret = ::write(fd, mBuffer, mPacketSize);
+    int ret = h->write(mBuffer, mPacketSize);
     return (ret < 0 ? ret : 0);
 }
 #endif
diff --git a/media/mtp/MtpResponsePacket.h b/media/mtp/MtpResponsePacket.h
index 592ad4a..29a72ba 100644
--- a/media/mtp/MtpResponsePacket.h
+++ b/media/mtp/MtpResponsePacket.h
@@ -20,6 +20,8 @@
 #include "MtpPacket.h"
 #include "mtp.h"
 
+class IMtpHandle;
+
 namespace android {
 
 class MtpResponsePacket : public MtpPacket {
@@ -29,8 +31,8 @@
     virtual             ~MtpResponsePacket();
 
 #ifdef MTP_DEVICE
-    // write our data to the given file descriptor
-    int                 write(int fd);
+    // write our data to the given usb handle
+    int                 write(IMtpHandle *h);
 #endif
 
 #ifdef MTP_HOST
diff --git a/media/mtp/MtpServer.cpp b/media/mtp/MtpServer.cpp
index e39dcdd..5c33265 100644
--- a/media/mtp/MtpServer.cpp
+++ b/media/mtp/MtpServer.cpp
@@ -14,18 +14,17 @@
  * limitations under the License.
  */
 
+#include <android-base/properties.h>
+#include <chrono>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/types.h>
-#include <sys/ioctl.h>
 #include <sys/stat.h>
-#include <fcntl.h>
-#include <inttypes.h>
-#include <errno.h>
 #include <sys/stat.h>
-#include <dirent.h>
-
-#include <cutils/properties.h>
 
 #define LOG_TAG "MtpServer"
 
@@ -37,8 +36,6 @@
 #include "MtpStorage.h"
 #include "MtpStringBuffer.h"
 
-#include <linux/usb/f_mtp.h>
-
 namespace android {
 
 static const MtpOperationCode kSupportedOperationCodes[] = {
@@ -57,7 +54,7 @@
     MTP_OPERATION_SEND_OBJECT,
 //    MTP_OPERATION_INITIATE_CAPTURE,
 //    MTP_OPERATION_FORMAT_STORE,
-//    MTP_OPERATION_RESET_DEVICE,
+    MTP_OPERATION_RESET_DEVICE,
 //    MTP_OPERATION_SELF_TEST,
 //    MTP_OPERATION_SET_OBJECT_PROTECTION,
 //    MTP_OPERATION_POWER_DOWN,
@@ -97,14 +94,21 @@
     MTP_EVENT_DEVICE_PROP_CHANGED,
 };
 
-MtpServer::MtpServer(int fd, MtpDatabase* database, bool ptp,
-                    int fileGroup, int filePerm, int directoryPerm)
-    :   mFD(fd),
-        mDatabase(database),
+MtpServer::MtpServer(MtpDatabase* database, bool ptp,
+                    int fileGroup, int filePerm, int directoryPerm,
+                    const MtpString& deviceInfoManufacturer,
+                    const MtpString& deviceInfoModel,
+                    const MtpString& deviceInfoDeviceVersion,
+                    const MtpString& deviceInfoSerialNumber)
+    :   mDatabase(database),
         mPtp(ptp),
         mFileGroup(fileGroup),
         mFilePermission(filePerm),
         mDirectoryPermission(directoryPerm),
+        mDeviceInfoManufacturer(deviceInfoManufacturer),
+        mDeviceInfoModel(deviceInfoModel),
+        mDeviceInfoDeviceVersion(deviceInfoDeviceVersion),
+        mDeviceInfoSerialNumber(deviceInfoSerialNumber),
         mSessionID(0),
         mSessionOpen(false),
         mSendObjectHandle(kInvalidObjectHandle),
@@ -116,6 +120,21 @@
 MtpServer::~MtpServer() {
 }
 
+IMtpHandle* MtpServer::sHandle = nullptr;
+
+int MtpServer::configure(bool usePtp) {
+    if (sHandle == nullptr) {
+        bool ffs_ok = access(FFS_MTP_EP0, W_OK) == 0;
+        sHandle = ffs_ok ? get_ffs_handle() : get_mtp_handle();
+    }
+
+    int ret = sHandle->configure(usePtp);
+    if (ret) ALOGE("Failed to configure MTP driver!");
+    else android::base::SetProperty("sys.usb.ffs.mtp.ready", "1");
+
+    return ret;
+}
+
 void MtpServer::addStorage(MtpStorage* storage) {
     Mutex::Autolock autoLock(mMutex);
 
@@ -143,24 +162,31 @@
         if (storage->getStorageID() == id)
             return storage;
     }
-    return NULL;
+    return nullptr;
 }
 
 bool MtpServer::hasStorage(MtpStorageID id) {
     if (id == 0 || id == 0xFFFFFFFF)
         return mStorages.size() > 0;
-    return (getStorage(id) != NULL);
+    return (getStorage(id) != nullptr);
 }
 
 void MtpServer::run() {
-    int fd = mFD;
+    if (!sHandle) {
+        ALOGE("MtpServer was never configured!");
+        return;
+    }
 
-    ALOGV("MtpServer::run fd: %d\n", fd);
+    if (sHandle->start()) {
+        ALOGE("Failed to start usb driver!");
+        sHandle->close();
+        return;
+    }
 
     while (1) {
-        int ret = mRequest.read(fd);
+        int ret = mRequest.read(sHandle);
         if (ret < 0) {
-            ALOGV("request read returned %d, errno: %d", ret, errno);
+            ALOGE("request read returned %d, errno: %d", ret, errno);
             if (errno == ECANCELED) {
                 // return to top of loop and wait for next command
                 continue;
@@ -171,15 +197,13 @@
         MtpTransactionID transaction = mRequest.getTransactionID();
 
         ALOGV("operation: %s", MtpDebug::getOperationCodeName(operation));
-        mRequest.dump();
-
         // FIXME need to generalize this
         bool dataIn = (operation == MTP_OPERATION_SEND_OBJECT_INFO
                     || operation == MTP_OPERATION_SET_OBJECT_REFERENCES
                     || operation == MTP_OPERATION_SET_OBJECT_PROP_VALUE
                     || operation == MTP_OPERATION_SET_DEVICE_PROP_VALUE);
         if (dataIn) {
-            int ret = mData.read(fd);
+            int ret = mData.read(sHandle);
             if (ret < 0) {
                 ALOGE("data read returned %d, errno: %d", ret, errno);
                 if (errno == ECANCELED) {
@@ -189,7 +213,6 @@
                 break;
             }
             ALOGV("received data:");
-            mData.dump();
         } else {
             mData.reset();
         }
@@ -199,8 +222,7 @@
                 mData.setOperationCode(operation);
                 mData.setTransactionID(transaction);
                 ALOGV("sending data:");
-                mData.dump();
-                ret = mData.write(fd);
+                ret = mData.write(sHandle);
                 if (ret < 0) {
                     ALOGE("request write returned %d, errno: %d", ret, errno);
                     if (errno == ECANCELED) {
@@ -213,9 +235,8 @@
 
             mResponse.setTransactionID(transaction);
             ALOGV("sending response %04X", mResponse.getResponseCode());
-            ret = mResponse.write(fd);
+            ret = mResponse.write(sHandle);
             const int savedErrno = errno;
-            mResponse.dump();
             if (ret < 0) {
                 ALOGE("request write returned %d, errno: %d", ret, errno);
                 if (savedErrno == ECANCELED) {
@@ -240,8 +261,8 @@
 
     if (mSessionOpen)
         mDatabase->sessionEnded();
-    close(fd);
-    mFD = -1;
+
+    sHandle->close();
 }
 
 void MtpServer::sendObjectAdded(MtpObjectHandle handle) {
@@ -274,8 +295,8 @@
         mEvent.setEventCode(code);
         mEvent.setTransactionID(mRequest.getTransactionID());
         mEvent.setParameter(1, param1);
-        int ret = mEvent.write(mFD);
-        ALOGV("mEvent.write returned %d\n", ret);
+        if (mEvent.write(sHandle))
+            ALOGE("Mtp send event failed: %s", strerror(errno));
     }
 }
 
@@ -291,7 +312,7 @@
         ObjectEdit* edit = mObjectEditList[i];
         if (edit->mHandle == handle) return edit;
     }
-    return NULL;
+    return nullptr;
 }
 
 void MtpServer::removeEditObject(MtpObjectHandle handle) {
@@ -341,6 +362,7 @@
         case MTP_OPERATION_OPEN_SESSION:
             response = doOpenSession();
             break;
+        case MTP_OPERATION_RESET_DEVICE:
         case MTP_OPERATION_CLOSE_SESSION:
             response = doCloseSession();
             break;
@@ -438,7 +460,6 @@
 
 MtpResponseCode MtpServer::doGetDeviceInfo() {
     MtpStringBuffer   string;
-    char prop_value[PROPERTY_VALUE_MAX];
 
     MtpObjectFormatList* playbackFormats = mDatabase->getSupportedPlaybackFormats();
     MtpObjectFormatList* captureFormats = mDatabase->getSupportedCaptureFormats();
@@ -470,19 +491,10 @@
     mData.putAUInt16(captureFormats); // Capture Formats
     mData.putAUInt16(playbackFormats);  // Playback Formats
 
-    property_get("ro.product.manufacturer", prop_value, "unknown manufacturer");
-    string.set(prop_value);
-    mData.putString(string);   // Manufacturer
-
-    property_get("ro.product.model", prop_value, "MTP Device");
-    string.set(prop_value);
-    mData.putString(string);   // Model
-    string.set("1.0");
-    mData.putString(string);   // Device Version
-
-    property_get("ro.serialno", prop_value, "????????");
-    string.set(prop_value);
-    mData.putString(string);   // Serial Number
+    mData.putString(mDeviceInfoManufacturer); // Manufacturer
+    mData.putString(mDeviceInfoModel); // Model
+    mData.putString(mDeviceInfoDeviceVersion); // Device Version
+    mData.putString(mDeviceInfoSerialNumber); // Serial Number
 
     delete playbackFormats;
     delete captureFormats;
@@ -775,6 +787,8 @@
     if (result != MTP_RESPONSE_OK)
         return result;
 
+    auto start = std::chrono::steady_clock::now();
+
     const char* filePath = (const char *)pathBuf;
     mtp_file_range  mfr;
     mfr.fd = open(filePath, O_RDONLY);
@@ -787,8 +801,9 @@
     mfr.transaction_id = mRequest.getTransactionID();
 
     // then transfer the file
-    int ret = ioctl(mFD, MTP_SEND_FILE_WITH_HEADER, (unsigned long)&mfr);
+    int ret = sHandle->sendFile(mfr);
     if (ret < 0) {
+        ALOGE("Mtp send file got error %s", strerror(errno));
         if (errno == ECANCELED) {
             result = MTP_RESPONSE_TRANSACTION_CANCELLED;
         } else {
@@ -798,7 +813,13 @@
         result = MTP_RESPONSE_OK;
     }
 
-    ALOGV("MTP_SEND_FILE_WITH_HEADER returned %d\n", ret);
+    auto end = std::chrono::steady_clock::now();
+    std::chrono::duration<double> diff = end - start;
+    struct stat sstat;
+    fstat(mfr.fd, &sstat);
+    uint64_t finalsize = sstat.st_size;
+    ALOGV("Sent a file over MTP. Time: %f s, Size: %" PRIu64 ", Rate: %f bytes/s",
+            diff.count(), finalsize, ((double) finalsize) / diff.count());
     close(mfr.fd);
     return result;
 }
@@ -813,7 +834,7 @@
         // send data
         mData.setOperationCode(mRequest.getOperationCode());
         mData.setTransactionID(mRequest.getTransactionID());
-        mData.writeData(mFD, thumb, thumbSize);
+        mData.writeData(sHandle, thumb, thumbSize);
         free(thumb);
         return MTP_RESPONSE_OK;
     } else {
@@ -867,7 +888,7 @@
     mResponse.setParameter(1, length);
 
     // transfer the file
-    int ret = ioctl(mFD, MTP_SEND_FILE_WITH_HEADER, (unsigned long)&mfr);
+    int ret = sHandle->sendFile(mfr);
     ALOGV("MTP_SEND_FILE_WITH_HEADER returned %d\n", ret);
     result = MTP_RESPONSE_OK;
     if (ret < 0) {
@@ -995,6 +1016,8 @@
     int ret, initialData;
     bool isCanceled = false;
 
+    auto start = std::chrono::steady_clock::now();
+
     if (mSendObjectHandle == kInvalidObjectHandle) {
         ALOGE("Expected SendObjectInfo before SendObject");
         result = MTP_RESPONSE_NO_VALID_OBJECT_INFO;
@@ -1002,7 +1025,7 @@
     }
 
     // read the header, and possibly some data
-    ret = mData.read(mFD);
+    ret = mData.read(sHandle);
     if (ret < MTP_CONTAINER_HEADER_SIZE) {
         result = MTP_RESPONSE_GENERAL_ERROR;
         goto done;
@@ -1029,28 +1052,30 @@
         ALOGE("failed to write initial data");
         result = MTP_RESPONSE_GENERAL_ERROR;
     } else {
-        if (mSendObjectFileSize - initialData > 0) {
-            mfr.offset = initialData;
-            if (mSendObjectFileSize == 0xFFFFFFFF) {
-                // tell driver to read until it receives a short packet
-                mfr.length = 0xFFFFFFFF;
-            } else {
-                mfr.length = mSendObjectFileSize - initialData;
-            }
+        mfr.offset = initialData;
+        if (mSendObjectFileSize == 0xFFFFFFFF) {
+            // tell driver to read until it receives a short packet
+            mfr.length = 0xFFFFFFFF;
+        } else {
+            mfr.length = mSendObjectFileSize - initialData;
+        }
 
-            ALOGV("receiving %s\n", (const char *)mSendObjectFilePath);
-            // transfer the file
-            ret = ioctl(mFD, MTP_RECEIVE_FILE, (unsigned long)&mfr);
-            if ((ret < 0) && (errno == ECANCELED)) {
-                isCanceled = true;
-            }
+        mfr.command = 0;
+        mfr.transaction_id = 0;
 
-            ALOGV("MTP_RECEIVE_FILE returned %d\n", ret);
+        // transfer the file
+        ret = sHandle->receiveFile(mfr, mfr.length == 0 &&
+                initialData == MTP_BUFFER_SIZE - MTP_CONTAINER_HEADER_SIZE);
+        if ((ret < 0) && (errno == ECANCELED)) {
+            isCanceled = true;
         }
     }
+    struct stat sstat;
+    fstat(mfr.fd, &sstat);
     close(mfr.fd);
 
     if (ret < 0) {
+        ALOGE("Mtp receive file got error %s", strerror(errno));
         unlink(mSendObjectFilePath);
         if (isCanceled)
             result = MTP_RESPONSE_TRANSACTION_CANCELLED;
@@ -1066,6 +1091,12 @@
             result == MTP_RESPONSE_OK);
     mSendObjectHandle = kInvalidObjectHandle;
     mSendObjectFormat = 0;
+
+    auto end = std::chrono::steady_clock::now();
+    std::chrono::duration<double> diff = end - start;
+    uint64_t finalsize = sstat.st_size;
+    ALOGV("Got a file over MTP. Time: %fs, Size: %" PRIu64 ", Rate: %f bytes/s",
+            diff.count(), finalsize, ((double) finalsize) / diff.count());
     return result;
 }
 
@@ -1209,7 +1240,7 @@
     ALOGV("receiving partial %s %" PRIu64 " %" PRIu32, filePath, offset, length);
 
     // read the header, and possibly some data
-    int ret = mData.read(mFD);
+    int ret = mData.read(sHandle);
     if (ret < MTP_CONTAINER_HEADER_SIZE)
         return MTP_RESPONSE_GENERAL_ERROR;
     int initialData = ret - MTP_CONTAINER_HEADER_SIZE;
@@ -1224,18 +1255,18 @@
     if (ret < 0) {
         ALOGE("failed to write initial data");
     } else {
-        if (length > 0) {
-            mtp_file_range  mfr;
-            mfr.fd = edit->mFD;
-            mfr.offset = offset;
-            mfr.length = length;
+        mtp_file_range  mfr;
+        mfr.fd = edit->mFD;
+        mfr.offset = offset;
+        mfr.length = length;
+        mfr.command = 0;
+        mfr.transaction_id = 0;
 
-            // transfer the file
-            ret = ioctl(mFD, MTP_RECEIVE_FILE, (unsigned long)&mfr);
-            if ((ret < 0) && (errno == ECANCELED)) {
-                isCanceled = true;
-            }
-            ALOGV("MTP_RECEIVE_FILE returned %d", ret);
+        // transfer the file
+        ret = sHandle->receiveFile(mfr, mfr.length == 0 &&
+                initialData == MTP_BUFFER_SIZE - MTP_CONTAINER_HEADER_SIZE);
+        if ((ret < 0) && (errno == ECANCELED)) {
+            isCanceled = true;
         }
     }
     if (ret < 0) {
diff --git a/media/mtp/MtpServer.h b/media/mtp/MtpServer.h
index b3a11e0..64d1b72 100644
--- a/media/mtp/MtpServer.h
+++ b/media/mtp/MtpServer.h
@@ -23,8 +23,12 @@
 #include "MtpEventPacket.h"
 #include "mtp.h"
 #include "MtpUtils.h"
+#include "IMtpHandle.h"
 
 #include <utils/threads.h>
+#include <queue>
+#include <memory>
+#include <mutex>
 
 namespace android {
 
@@ -34,9 +38,6 @@
 class MtpServer {
 
 private:
-    // file descriptor for MTP kernel driver
-    int                 mFD;
-
     MtpDatabase*        mDatabase;
 
     // appear as a PTP device
@@ -48,6 +49,15 @@
     int                 mFilePermission;
     int                 mDirectoryPermission;
 
+    // Manufacturer to report in DeviceInfo
+    MtpString           mDeviceInfoManufacturer;
+    // Model to report in DeviceInfo
+    MtpString           mDeviceInfoModel;
+    // Device version to report in DeviceInfo
+    MtpString           mDeviceInfoDeviceVersion;
+    // Serial number to report in DeviceInfo
+    MtpString           mDeviceInfoSerialNumber;
+
     // current session ID
     MtpSessionID        mSessionID;
     // true if we have an open session and mSessionID is valid
@@ -56,10 +66,13 @@
     MtpRequestPacket    mRequest;
     MtpDataPacket       mData;
     MtpResponsePacket   mResponse;
+
     MtpEventPacket      mEvent;
 
     MtpStorageList      mStorages;
 
+    static IMtpHandle*  sHandle;
+
     // handle for new object, set by SendObjectInfo and used by SendObject
     MtpObjectHandle     mSendObjectHandle;
     MtpObjectFormat     mSendObjectFormat;
@@ -90,8 +103,12 @@
     Vector<ObjectEdit*>  mObjectEditList;
 
 public:
-                        MtpServer(int fd, MtpDatabase* database, bool ptp,
-                                    int fileGroup, int filePerm, int directoryPerm);
+                        MtpServer(MtpDatabase* database, bool ptp,
+                                    int fileGroup, int filePerm, int directoryPerm,
+                                    const MtpString& deviceInfoManufacturer,
+                                    const MtpString& deviceInfoModel,
+                                    const MtpString& deviceInfoDeviceVersion,
+                                    const MtpString& deviceInfoSerialNumber);
     virtual             ~MtpServer();
 
     MtpStorage*         getStorage(MtpStorageID id);
@@ -100,6 +117,7 @@
     void                addStorage(MtpStorage* storage);
     void                removeStorage(MtpStorage* storage);
 
+    static int          configure(bool usePtp);
     void                run();
 
     void                sendObjectAdded(MtpObjectHandle handle);
diff --git a/media/mtp/MtpStorageInfo.cpp b/media/mtp/MtpStorageInfo.cpp
index 5d4ebbf..8801a38 100644
--- a/media/mtp/MtpStorageInfo.cpp
+++ b/media/mtp/MtpStorageInfo.cpp
@@ -58,8 +58,10 @@
 
     if (!packet.getString(string)) return false;
     mStorageDescription = strdup((const char *)string);
+    if (!mStorageDescription) return false;
     if (!packet.getString(string)) return false;
     mVolumeIdentifier = strdup((const char *)string);
+    if (!mVolumeIdentifier) return false;
 
     return true;
 }
diff --git a/media/mtp/MtpStorageInfo.h b/media/mtp/MtpStorageInfo.h
index 35a8189..3b70675 100644
--- a/media/mtp/MtpStorageInfo.h
+++ b/media/mtp/MtpStorageInfo.h
@@ -36,7 +36,7 @@
     char*               mVolumeIdentifier;
 
 public:
-                        MtpStorageInfo(MtpStorageID id);
+    explicit            MtpStorageInfo(MtpStorageID id);
     virtual             ~MtpStorageInfo();
 
     bool                read(MtpDataPacket& packet);
diff --git a/media/mtp/MtpStringBuffer.h b/media/mtp/MtpStringBuffer.h
index 85d91e8..bcf2a48 100644
--- a/media/mtp/MtpStringBuffer.h
+++ b/media/mtp/MtpStringBuffer.h
@@ -38,8 +38,8 @@
 
 public:
                     MtpStringBuffer();
-                    MtpStringBuffer(const char* src);
-                    MtpStringBuffer(const uint16_t* src);
+    explicit        MtpStringBuffer(const char* src);
+    explicit        MtpStringBuffer(const uint16_t* src);
                     MtpStringBuffer(const MtpStringBuffer& src);
     virtual         ~MtpStringBuffer();
 
diff --git a/media/mtp/tests/Android.mk b/media/mtp/tests/Android.mk
new file mode 100644
index 0000000..ace0d40
--- /dev/null
+++ b/media/mtp/tests/Android.mk
@@ -0,0 +1,51 @@
+# Build the unit tests.
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+
+LOCAL_MODULE := mtp_ffs_handle_test
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_SRC_FILES := \
+	MtpFfsHandle_test.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+	libbase \
+	libcutils \
+	libmedia \
+	libmtp \
+	libutils \
+	liblog
+
+LOCAL_C_INCLUDES := \
+	frameworks/av/media/mtp \
+
+LOCAL_CFLAGS += -Werror -Wall
+
+include $(BUILD_NATIVE_TEST)
+
+include $(CLEAR_VARS)
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+
+LOCAL_MODULE := async_io_test
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_SRC_FILES := \
+	AsyncIO_test.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+	libbase \
+	libcutils \
+	libmedia \
+	libmtp \
+	libutils \
+	liblog
+
+LOCAL_C_INCLUDES := \
+	frameworks/av/media/mtp \
+
+LOCAL_CFLAGS += -Werror -Wall
+
+include $(BUILD_NATIVE_TEST)
diff --git a/media/mtp/tests/AsyncIO_test.cpp b/media/mtp/tests/AsyncIO_test.cpp
new file mode 100644
index 0000000..b5f4538
--- /dev/null
+++ b/media/mtp/tests/AsyncIO_test.cpp
@@ -0,0 +1,192 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "AsyncIO_test.cpp"
+
+#include <android-base/test_utils.h>
+#include <fcntl.h>
+#include <gtest/gtest.h>
+#include <string>
+#include <unistd.h>
+#include <utils/Log.h>
+
+#include "AsyncIO.h"
+
+namespace android {
+
+constexpr int TEST_PACKET_SIZE = 512;
+constexpr int POOL_COUNT = 10;
+
+static const std::string dummyDataStr =
+    "/*\n * Copyright 2015 The Android Open Source Project\n *\n * Licensed un"
+    "der the Apache License, Version 2.0 (the \"License\");\n * you may not us"
+    "e this file except in compliance with the License.\n * You may obtain a c"
+    "opy of the License at\n *\n *      http://www.apache.org/licenses/LICENSE"
+    "-2.0\n *\n * Unless required by applicable law or agreed to in writing, s"
+    "oftware\n * distributed under the License is distributed on an \"AS IS\" "
+    "BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express o"
+    "r implied.\n * Se";
+
+
+class AsyncIOTest : public ::testing::Test {
+protected:
+    TemporaryFile dummy_file;
+
+    AsyncIOTest() {}
+    ~AsyncIOTest() {}
+};
+
+TEST_F(AsyncIOTest, testRead) {
+    char buf[TEST_PACKET_SIZE + 1];
+    buf[TEST_PACKET_SIZE] = '\0';
+    EXPECT_EQ(write(dummy_file.fd, dummyDataStr.c_str(), TEST_PACKET_SIZE), TEST_PACKET_SIZE);
+    struct aiocb aio;
+    struct aiocb *aiol[] = {&aio};
+    aio.aio_fildes = dummy_file.fd;
+    aio.aio_buf = buf;
+    aio.aio_offset = 0;
+    aio.aio_nbytes = TEST_PACKET_SIZE;
+
+    EXPECT_EQ(aio_read(&aio), 0);
+    EXPECT_EQ(aio_suspend(aiol, 1, nullptr), 0);
+    EXPECT_EQ(aio_return(&aio), TEST_PACKET_SIZE);
+    EXPECT_STREQ(buf, dummyDataStr.c_str());
+}
+
+TEST_F(AsyncIOTest, testWrite) {
+    char buf[TEST_PACKET_SIZE + 1];
+    buf[TEST_PACKET_SIZE] = '\0';
+    struct aiocb aio;
+    struct aiocb *aiol[] = {&aio};
+    aio.aio_fildes = dummy_file.fd;
+    aio.aio_buf = const_cast<char*>(dummyDataStr.c_str());
+    aio.aio_offset = 0;
+    aio.aio_nbytes = TEST_PACKET_SIZE;
+
+    EXPECT_EQ(aio_write(&aio), 0);
+    EXPECT_EQ(aio_suspend(aiol, 1, nullptr), 0);
+    EXPECT_EQ(aio_return(&aio), TEST_PACKET_SIZE);
+    EXPECT_EQ(read(dummy_file.fd, buf, TEST_PACKET_SIZE), TEST_PACKET_SIZE);
+    EXPECT_STREQ(buf, dummyDataStr.c_str());
+}
+
+TEST_F(AsyncIOTest, testError) {
+    char buf[TEST_PACKET_SIZE + 1];
+    buf[TEST_PACKET_SIZE] = '\0';
+    struct aiocb aio;
+    struct aiocb *aiol[] = {&aio};
+    aio.aio_fildes = -1;
+    aio.aio_buf = const_cast<char*>(dummyDataStr.c_str());
+    aio.aio_offset = 0;
+    aio.aio_nbytes = TEST_PACKET_SIZE;
+
+    EXPECT_EQ(aio_write(&aio), 0);
+    EXPECT_EQ(aio_suspend(aiol, 1, nullptr), 0);
+    EXPECT_EQ(aio_return(&aio), -1);
+    EXPECT_EQ(aio_error(&aio), EBADF);
+}
+
+TEST_F(AsyncIOTest, testSpliceRead) {
+    char buf[TEST_PACKET_SIZE + 1];
+    buf[TEST_PACKET_SIZE] = '\0';
+    int pipeFd[2];
+    EXPECT_EQ(pipe(pipeFd), 0);
+    EXPECT_EQ(write(dummy_file.fd, dummyDataStr.c_str(), TEST_PACKET_SIZE), TEST_PACKET_SIZE);
+    struct aiocb aio;
+    struct aiocb *aiol[] = {&aio};
+    aio.aio_fildes = dummy_file.fd;
+    aio.aio_sink = pipeFd[1];
+    aio.aio_offset = 0;
+    aio.aio_nbytes = TEST_PACKET_SIZE;
+
+    EXPECT_EQ(aio_splice_read(&aio), 0);
+    EXPECT_EQ(aio_suspend(aiol, 1, nullptr), 0);
+    EXPECT_EQ(aio_return(&aio), TEST_PACKET_SIZE);
+
+    EXPECT_EQ(read(pipeFd[0], buf, TEST_PACKET_SIZE), TEST_PACKET_SIZE);
+    EXPECT_STREQ(buf, dummyDataStr.c_str());
+}
+
+TEST_F(AsyncIOTest, testSpliceWrite) {
+    char buf[TEST_PACKET_SIZE + 1];
+    buf[TEST_PACKET_SIZE] = '\0';
+    int pipeFd[2];
+    EXPECT_EQ(pipe(pipeFd), 0);
+    EXPECT_EQ(write(pipeFd[1], dummyDataStr.c_str(), TEST_PACKET_SIZE), TEST_PACKET_SIZE);
+    struct aiocb aio;
+    struct aiocb *aiol[] = {&aio};
+    aio.aio_fildes = pipeFd[0];
+    aio.aio_sink = dummy_file.fd;
+    aio.aio_offset = 0;
+    aio.aio_nbytes = TEST_PACKET_SIZE;
+
+    EXPECT_EQ(aio_splice_write(&aio), 0);
+    EXPECT_EQ(aio_suspend(aiol, 1, nullptr), 0);
+    EXPECT_EQ(aio_return(&aio), TEST_PACKET_SIZE);
+    EXPECT_EQ(read(dummy_file.fd, buf, TEST_PACKET_SIZE), TEST_PACKET_SIZE);
+    EXPECT_STREQ(buf, dummyDataStr.c_str());
+}
+
+TEST_F(AsyncIOTest, testPoolWrite) {
+    aio_pool_write_init();
+    char buf[TEST_PACKET_SIZE * POOL_COUNT + 1];
+    buf[TEST_PACKET_SIZE * POOL_COUNT] = '\0';
+
+    for (int i = 0; i < POOL_COUNT; i++) {
+        struct aiocb *aiop = new struct aiocb;
+        aiop->aio_fildes = dummy_file.fd;
+        aiop->aio_pool_buf = std::unique_ptr<char[]>(new char[TEST_PACKET_SIZE]);
+        memcpy(aiop->aio_pool_buf.get(), dummyDataStr.c_str(), TEST_PACKET_SIZE);
+        aiop->aio_offset = i * TEST_PACKET_SIZE;
+        aiop->aio_nbytes = TEST_PACKET_SIZE;
+        EXPECT_EQ(aio_pool_write(aiop), 0);
+    }
+    aio_pool_end();
+    EXPECT_EQ(read(dummy_file.fd, buf, TEST_PACKET_SIZE * POOL_COUNT), TEST_PACKET_SIZE * POOL_COUNT);
+
+    std::stringstream ss;
+    for (int i = 0; i < POOL_COUNT; i++)
+        ss << dummyDataStr;
+
+    EXPECT_STREQ(buf, ss.str().c_str());
+}
+
+TEST_F(AsyncIOTest, testSplicePoolWrite) {
+    aio_pool_splice_init();
+    char buf[TEST_PACKET_SIZE * POOL_COUNT + 1];
+    buf[TEST_PACKET_SIZE * POOL_COUNT] = '\0';
+
+    for (int i = 0; i < POOL_COUNT; i++) {
+        int pipeFd[2];
+        EXPECT_EQ(pipe(pipeFd), 0);
+        EXPECT_EQ(write(pipeFd[1], dummyDataStr.c_str(), TEST_PACKET_SIZE), TEST_PACKET_SIZE);
+        struct aiocb *aiop = new struct aiocb;
+        aiop->aio_fildes = pipeFd[0];
+        aiop->aio_sink = dummy_file.fd;
+        aiop->aio_offset = i * TEST_PACKET_SIZE;
+        aiop->aio_nbytes = TEST_PACKET_SIZE;
+        EXPECT_EQ(aio_pool_write(aiop), 0);
+    }
+    aio_pool_end();
+    EXPECT_EQ(read(dummy_file.fd, buf, TEST_PACKET_SIZE * POOL_COUNT), TEST_PACKET_SIZE * POOL_COUNT);
+
+    std::stringstream ss;
+    for (int i = 0; i < POOL_COUNT; i++)
+        ss << dummyDataStr;
+
+    EXPECT_STREQ(buf, ss.str().c_str());
+}
+
+} // namespace android
diff --git a/media/mtp/tests/MtpFfsHandle_test.cpp b/media/mtp/tests/MtpFfsHandle_test.cpp
new file mode 100644
index 0000000..554f867
--- /dev/null
+++ b/media/mtp/tests/MtpFfsHandle_test.cpp
@@ -0,0 +1,280 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "MtpFfsHandle_test.cpp"
+
+#include <android-base/unique_fd.h>
+#include <android-base/test_utils.h>
+#include <fcntl.h>
+#include <gtest/gtest.h>
+#include <memory>
+#include <random>
+#include <string>
+#include <unistd.h>
+#include <utils/Log.h>
+
+#include "MtpFfsHandle.h"
+
+namespace android {
+
+constexpr int MAX_FILE_CHUNK_SIZE = 3 * 1024 * 1024;
+
+constexpr int TEST_PACKET_SIZE = 512;
+constexpr int SMALL_MULT = 30;
+constexpr int MED_MULT = 510;
+
+static const std::string dummyDataStr =
+    "/*\n * Copyright 2015 The Android Open Source Project\n *\n * Licensed un"
+    "der the Apache License, Version 2.0 (the \"License\");\n * you may not us"
+    "e this file except in compliance with the License.\n * You may obtain a c"
+    "opy of the License at\n *\n *      http://www.apache.org/licenses/LICENSE"
+    "-2.0\n *\n * Unless required by applicable law or agreed to in writing, s"
+    "oftware\n * distributed under the License is distributed on an \"AS IS\" "
+    "BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express o"
+    "r implied.\n * Se";
+
+/**
+ * Functional tests for the MtpFfsHandle class. Ensures header and data integrity
+ * by mocking ffs endpoints as pipes to capture input / output.
+ */
+class MtpFfsHandleTest : public ::testing::Test {
+protected:
+    std::unique_ptr<IMtpHandle> handle;
+
+    // Pipes for reading endpoint data
+    android::base::unique_fd bulk_in;
+    android::base::unique_fd bulk_out;
+    android::base::unique_fd intr;
+
+    TemporaryFile dummy_file;
+
+    MtpFfsHandleTest() {
+        int fd[2];
+        handle = std::unique_ptr<IMtpHandle>(get_ffs_handle());
+        MtpFfsHandle *ffs_handle = static_cast<MtpFfsHandle*>(handle.get());
+        EXPECT_TRUE(ffs_handle != NULL);
+
+        EXPECT_EQ(pipe(fd), 0);
+        EXPECT_EQ(fcntl(fd[0], F_SETPIPE_SZ, 1048576), 1048576);
+        bulk_in.reset(fd[0]);
+        ffs_handle->mBulkIn.reset(fd[1]);
+
+        EXPECT_EQ(pipe(fd), 0);
+        EXPECT_EQ(fcntl(fd[0], F_SETPIPE_SZ, 1048576), 1048576);
+        bulk_out.reset(fd[1]);
+        ffs_handle->mBulkOut.reset(fd[0]);
+
+        EXPECT_EQ(pipe(fd), 0);
+        intr.reset(fd[0]);
+        ffs_handle->mIntr.reset(fd[1]);
+
+        ffs_handle->mBuffer1.resize(MAX_FILE_CHUNK_SIZE);
+        ffs_handle->mBuffer2.resize(MAX_FILE_CHUNK_SIZE);
+    }
+
+    ~MtpFfsHandleTest() {}
+};
+
+TEST_F(MtpFfsHandleTest, testRead) {
+    EXPECT_EQ(write(bulk_out, dummyDataStr.c_str(), TEST_PACKET_SIZE), TEST_PACKET_SIZE);
+    char buf[TEST_PACKET_SIZE + 1];
+    buf[TEST_PACKET_SIZE] = '\0';
+    EXPECT_EQ(handle->read(buf, TEST_PACKET_SIZE), TEST_PACKET_SIZE);
+    EXPECT_STREQ(buf, dummyDataStr.c_str());
+}
+
+TEST_F(MtpFfsHandleTest, testWrite) {
+    char buf[TEST_PACKET_SIZE + 1];
+    buf[TEST_PACKET_SIZE] = '\0';
+    EXPECT_EQ(handle->write(dummyDataStr.c_str(), TEST_PACKET_SIZE), TEST_PACKET_SIZE);
+    EXPECT_EQ(read(bulk_in, buf, TEST_PACKET_SIZE), TEST_PACKET_SIZE);
+    EXPECT_STREQ(buf, dummyDataStr.c_str());
+}
+
+TEST_F(MtpFfsHandleTest, testReceiveFileSmall) {
+    std::stringstream ss;
+    mtp_file_range mfr;
+    int size = TEST_PACKET_SIZE * SMALL_MULT;
+    char buf[size + 1];
+    buf[size] = '\0';
+
+    mfr.length = size;
+    mfr.fd = dummy_file.fd;
+    for (int i = 0; i < SMALL_MULT; i++)
+        ss << dummyDataStr;
+
+    EXPECT_EQ(write(bulk_out, ss.str().c_str(), size), size);
+    EXPECT_EQ(handle->receiveFile(mfr, false), 0);
+
+    EXPECT_EQ(read(dummy_file.fd, buf, size), size);
+
+    EXPECT_STREQ(buf, ss.str().c_str());
+}
+
+TEST_F(MtpFfsHandleTest, testReceiveFileMed) {
+    std::stringstream ss;
+    mtp_file_range mfr;
+    int size = TEST_PACKET_SIZE * MED_MULT;
+    char buf[size + 1];
+    buf[size] = '\0';
+
+    mfr.length = size;
+    mfr.fd = dummy_file.fd;
+    for (int i = 0; i < MED_MULT; i++)
+        ss << dummyDataStr;
+
+    EXPECT_EQ(write(bulk_out, ss.str().c_str(), size), size);
+    EXPECT_EQ(handle->receiveFile(mfr, false), 0);
+
+    EXPECT_EQ(read(dummy_file.fd, buf, size), size);
+
+    EXPECT_STREQ(buf, ss.str().c_str());
+}
+
+TEST_F(MtpFfsHandleTest, testSendFileSmall) {
+    std::stringstream ss;
+    mtp_file_range mfr;
+    mfr.command = 42;
+    mfr.transaction_id = 1337;
+    mfr.offset = 0;
+    int size = TEST_PACKET_SIZE * SMALL_MULT;
+    char buf[size + sizeof(mtp_data_header) + 1];
+    buf[size + sizeof(mtp_data_header)] = '\0';
+
+    mfr.length = size;
+    mfr.fd = dummy_file.fd;
+    for (int i = 0; i < SMALL_MULT; i++)
+        ss << dummyDataStr;
+
+    EXPECT_EQ(write(dummy_file.fd, ss.str().c_str(), size), size);
+    EXPECT_EQ(handle->sendFile(mfr), 0);
+
+    EXPECT_EQ(read(bulk_in, buf, size + sizeof(mtp_data_header)),
+            static_cast<long>(size + sizeof(mtp_data_header)));
+
+    struct mtp_data_header *header = reinterpret_cast<struct mtp_data_header*>(buf);
+    EXPECT_STREQ(buf + sizeof(mtp_data_header), ss.str().c_str());
+    EXPECT_EQ(header->length, static_cast<unsigned int>(size + sizeof(mtp_data_header)));
+    EXPECT_EQ(header->type, static_cast<unsigned int>(2));
+    EXPECT_EQ(header->command, static_cast<unsigned int>(42));
+    EXPECT_EQ(header->transaction_id, static_cast<unsigned int>(1337));
+}
+
+TEST_F(MtpFfsHandleTest, testSendFileMed) {
+    std::stringstream ss;
+    mtp_file_range mfr;
+    mfr.command = 42;
+    mfr.transaction_id = 1337;
+    mfr.offset = 0;
+    int size = TEST_PACKET_SIZE * MED_MULT;
+    char buf[size + sizeof(mtp_data_header) + 1];
+    buf[size + sizeof(mtp_data_header)] = '\0';
+
+    mfr.length = size;
+    mfr.fd = dummy_file.fd;
+    for (int i = 0; i < MED_MULT; i++)
+        ss << dummyDataStr;
+
+    EXPECT_EQ(write(dummy_file.fd, ss.str().c_str(), size), size);
+    EXPECT_EQ(handle->sendFile(mfr), 0);
+
+    EXPECT_EQ(read(bulk_in, buf, size + sizeof(mtp_data_header)),
+            static_cast<long>(size + sizeof(mtp_data_header)));
+
+    struct mtp_data_header *header = reinterpret_cast<struct mtp_data_header*>(buf);
+    EXPECT_STREQ(buf + sizeof(mtp_data_header), ss.str().c_str());
+    EXPECT_EQ(header->length, static_cast<unsigned int>(size + sizeof(mtp_data_header)));
+    EXPECT_EQ(header->type, static_cast<unsigned int>(2));
+    EXPECT_EQ(header->command, static_cast<unsigned int>(42));
+    EXPECT_EQ(header->transaction_id, static_cast<unsigned int>(1337));
+}
+
+TEST_F(MtpFfsHandleTest, testSendFileMedPartial) {
+    std::stringstream ss;
+    mtp_file_range mfr;
+    mfr.fd = dummy_file.fd;
+    mfr.command = 42;
+    mfr.transaction_id = 1337;
+    int size = TEST_PACKET_SIZE * MED_MULT;
+    char buf[size + 1];
+    buf[size] = '\0';
+
+    for (int i = 0; i < MED_MULT; i++)
+        ss << dummyDataStr;
+
+    EXPECT_EQ(write(dummy_file.fd, ss.str().c_str(), size), size);
+
+    std::random_device rd;
+    std::mt19937 gen(rd());
+    std::uniform_int_distribution<> dis(1, TEST_PACKET_SIZE);
+    int offset = 0;
+    while (offset != size) {
+        mfr.offset = offset;
+        int length = std::min(size - offset, dis(gen));
+        mfr.length = length;
+        char temp_buf[length + sizeof(mtp_data_header)];
+        EXPECT_EQ(handle->sendFile(mfr), 0);
+
+        EXPECT_EQ(read(bulk_in, temp_buf, length + sizeof(mtp_data_header)),
+                static_cast<long>(length + sizeof(mtp_data_header)));
+
+        struct mtp_data_header *header = reinterpret_cast<struct mtp_data_header*>(temp_buf);
+        EXPECT_EQ(header->length, static_cast<unsigned int>(length + sizeof(mtp_data_header)));
+        EXPECT_EQ(header->type, static_cast<unsigned int>(2));
+        EXPECT_EQ(header->command, static_cast<unsigned int>(42));
+        EXPECT_EQ(header->transaction_id, static_cast<unsigned int>(1337));
+        memcpy(buf + offset, temp_buf + sizeof(mtp_data_header), length);
+        offset += length;
+    }
+    EXPECT_STREQ(buf, ss.str().c_str());
+}
+
+TEST_F(MtpFfsHandleTest, testSendFileEmpty) {
+    mtp_file_range mfr;
+    mfr.command = 42;
+    mfr.transaction_id = 1337;
+    mfr.offset = 0;
+    int size = 0;
+    char buf[size + sizeof(mtp_data_header) + 1];
+    buf[size + sizeof(mtp_data_header)] = '\0';
+
+    mfr.length = size;
+    mfr.fd = dummy_file.fd;
+
+    EXPECT_EQ(handle->sendFile(mfr), 0);
+
+    EXPECT_EQ(read(bulk_in, buf, size + sizeof(mtp_data_header)),
+            static_cast<long>(size + sizeof(mtp_data_header)));
+
+    struct mtp_data_header *header = reinterpret_cast<struct mtp_data_header*>(buf);
+    EXPECT_EQ(header->length, static_cast<unsigned int>(size + sizeof(mtp_data_header)));
+    EXPECT_EQ(header->type, static_cast<unsigned int>(2));
+    EXPECT_EQ(header->command, static_cast<unsigned int>(42));
+    EXPECT_EQ(header->transaction_id, static_cast<unsigned int>(1337));
+}
+
+TEST_F(MtpFfsHandleTest, testSendEvent) {
+    struct mtp_event event;
+    event.length = TEST_PACKET_SIZE;
+    event.data = const_cast<char*>(dummyDataStr.c_str());
+    char buf[TEST_PACKET_SIZE + 1];
+    buf[TEST_PACKET_SIZE] = '\0';
+
+    handle->sendEvent(event);
+    read(intr, buf, TEST_PACKET_SIZE);
+    EXPECT_STREQ(buf, dummyDataStr.c_str());
+}
+
+} // namespace android
diff --git a/media/ndk/Android.bp b/media/ndk/Android.bp
new file mode 100644
index 0000000..824872f
--- /dev/null
+++ b/media/ndk/Android.bp
@@ -0,0 +1,24 @@
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Headers module is in frameworks/av/Android.bp because modules are not allowed
+// to refer to headers in parent directories and the headers live in
+// frameworks/av/include.
+
+ndk_library {
+    name: "libmediandk",
+    symbol_file: "libmediandk.map.txt",
+    first_version: "21",
+    unversioned_until: "current",
+}
diff --git a/media/ndk/Android.mk b/media/ndk/Android.mk
index 74729e4..2c070af 100644
--- a/media/ndk/Android.mk
+++ b/media/ndk/Android.mk
@@ -34,27 +34,39 @@
 
 LOCAL_C_INCLUDES := \
     bionic/libc/private \
+    external/piex \
     frameworks/base/core/jni \
+    frameworks/base/media/jni \
     frameworks/av/include/ndk \
-    system/media/camera/include
+    frameworks/native/include \
+    frameworks/native/include/media/openmax \
+    system/media/camera/include \
+    $(call include-path-for, libhardware)/hardware \
 
 LOCAL_CFLAGS += -fvisibility=hidden -D EXPORT='__attribute__ ((visibility ("default")))'
 
 LOCAL_CFLAGS += -Werror -Wall
 
+LOCAL_STATIC_LIBRARIES := \
+    libgrallocusage \
+
 LOCAL_SHARED_LIBRARIES := \
     libbinder \
     libmedia \
+    libmedia_jni \
     libmediadrm \
+    libskia \
     libstagefright \
     libstagefright_foundation \
     liblog \
     libutils \
     libcutils \
+    libandroid \
     libandroid_runtime \
     libbinder \
     libgui \
     libui \
+    libandroid \
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/media/ndk/NdkImage.cpp b/media/ndk/NdkImage.cpp
index 40900ad..6d28d1b 100644
--- a/media/ndk/NdkImage.cpp
+++ b/media/ndk/NdkImage.cpp
@@ -22,6 +22,8 @@
 #include "NdkImagePriv.h"
 #include "NdkImageReaderPriv.h"
 
+#include <android_media_Utils.h>
+#include <android_runtime/android_hardware_HardwareBuffer.h>
 #include <utils/Log.h>
 #include "hardware/camera3.h"
 
@@ -29,12 +31,10 @@
 
 #define ALIGN(x, mask) ( ((x) + (mask) - 1) & ~((mask) - 1) )
 
-AImage::AImage(AImageReader* reader, int32_t format,
-        CpuConsumer::LockedBuffer* buffer, int64_t timestamp,
-        int32_t width, int32_t height, int32_t numPlanes) :
-        mReader(reader), mFormat(format),
-        mBuffer(buffer), mTimestamp(timestamp),
-        mWidth(width), mHeight(height), mNumPlanes(numPlanes) {
+AImage::AImage(AImageReader* reader, int32_t format, uint64_t usage, BufferItem* buffer,
+        int64_t timestamp, int32_t width, int32_t height, int32_t numPlanes) :
+        mReader(reader), mFormat(format), mUsage(usage), mBuffer(buffer), mLockedBuffer(nullptr),
+        mTimestamp(timestamp), mWidth(width), mHeight(height), mNumPlanes(numPlanes) {
 }
 
 // Can only be called by free() with mLock hold
@@ -52,7 +52,7 @@
 }
 
 void
-AImage::close() {
+AImage::close(int releaseFenceFd) {
     Mutex::Autolock _l(mLock);
     if (mIsClosed) {
         return;
@@ -62,10 +62,11 @@
         LOG_ALWAYS_FATAL("Error: AImage not closed before AImageReader close!");
         return;
     }
-    reader->releaseImageLocked(this);
+    reader->releaseImageLocked(this, releaseFenceFd);
     // Should have been set to nullptr in releaseImageLocked
     // Set to nullptr here for extra safety only
     mBuffer = nullptr;
+    mLockedBuffer = nullptr;
     mIsClosed = true;
 }
 
@@ -169,8 +170,77 @@
     return AMEDIA_OK;
 }
 
+media_status_t AImage::lockImage() {
+    if (mBuffer == nullptr || mBuffer->mGraphicBuffer == nullptr) {
+        LOG_ALWAYS_FATAL("%s: AImage %p has no buffer.", __FUNCTION__, this);
+        return AMEDIA_ERROR_INVALID_OBJECT;
+    }
+
+    if ((mUsage & AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN) == 0) {
+        ALOGE("%s: AImage %p does not have any software read usage bits set, usage=%" PRIu64 "",
+              __FUNCTION__, this, mUsage);
+        return AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE;
+    }
+
+    if (mLockedBuffer != nullptr) {
+        // Return immediately if the image has already been locked.
+        return AMEDIA_OK;
+    }
+
+    auto lockedBuffer = std::make_unique<CpuConsumer::LockedBuffer>();
+
+    uint64_t grallocUsage = android_hardware_HardwareBuffer_convertToGrallocUsageBits(mUsage);
+
+    status_t ret =
+            lockImageFromBuffer(mBuffer, grallocUsage, mBuffer->mFence->dup(), lockedBuffer.get());
+    if (ret != OK) {
+        ALOGE("%s: AImage %p failed to lock, error=%d", __FUNCTION__, this, ret);
+        return AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE;
+    }
+
+    ALOGV("%s: Successfully locked the image %p.", __FUNCTION__, this);
+    mLockedBuffer = std::move(lockedBuffer);
+
+    return AMEDIA_OK;
+}
+
+media_status_t AImage::unlockImageIfLocked(int* fenceFd) {
+    if (fenceFd == nullptr) {
+        LOG_ALWAYS_FATAL("%s: fenceFd cannot be null.", __FUNCTION__);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
+    if (mBuffer == nullptr || mBuffer->mGraphicBuffer == nullptr) {
+        LOG_ALWAYS_FATAL("%s: AImage %p has no buffer.", __FUNCTION__, this);
+        return AMEDIA_ERROR_INVALID_OBJECT;
+    }
+
+    if (mLockedBuffer == nullptr) {
+        // This image hasn't been locked yet, no need to unlock.
+        *fenceFd = -1;
+        return AMEDIA_OK;
+    }
+
+    // No fence by default.
+    int releaseFenceFd = -1;
+    status_t res = mBuffer->mGraphicBuffer->unlockAsync(&releaseFenceFd);
+    if (res != OK) {
+        ALOGE("%s unlock buffer failed on iamge %p.", __FUNCTION__, this);
+        *fenceFd = -1;
+        return AMEDIA_IMGREADER_CANNOT_UNLOCK_IMAGE;
+    }
+
+    *fenceFd = releaseFenceFd;
+    return AMEDIA_OK;
+}
+
 media_status_t
 AImage::getPlanePixelStride(int planeIdx, /*out*/int32_t* pixelStride) const {
+    if (mLockedBuffer == nullptr) {
+        ALOGE("%s: buffer not locked.", __FUNCTION__);
+        return AMEDIA_IMGREADER_IMAGE_NOT_LOCKED;
+    }
+
     if (planeIdx < 0 || planeIdx >= mNumPlanes) {
         ALOGE("Error: planeIdx %d out of bound [0,%d]",
                 planeIdx, mNumPlanes - 1);
@@ -183,10 +253,10 @@
         ALOGE("%s: image %p has been closed!", __FUNCTION__, this);
         return AMEDIA_ERROR_INVALID_OBJECT;
     }
-    int32_t fmt = mBuffer->flexFormat;
+    int32_t fmt = mLockedBuffer->flexFormat;
     switch (fmt) {
         case HAL_PIXEL_FORMAT_YCbCr_420_888:
-            *pixelStride = (planeIdx == 0) ? 1 : mBuffer->chromaStep;
+            *pixelStride = (planeIdx == 0) ? 1 : mLockedBuffer->chromaStep;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_YCrCb_420_SP:
             *pixelStride = (planeIdx == 0) ? 1 : 2;
@@ -226,6 +296,11 @@
 
 media_status_t
 AImage::getPlaneRowStride(int planeIdx, /*out*/int32_t* rowStride) const {
+    if (mLockedBuffer == nullptr) {
+        ALOGE("%s: buffer not locked.", __FUNCTION__);
+        return AMEDIA_IMGREADER_IMAGE_NOT_LOCKED;
+    }
+
     if (planeIdx < 0 || planeIdx >= mNumPlanes) {
         ALOGE("Error: planeIdx %d out of bound [0,%d]",
                 planeIdx, mNumPlanes - 1);
@@ -238,54 +313,58 @@
         ALOGE("%s: image %p has been closed!", __FUNCTION__, this);
         return AMEDIA_ERROR_INVALID_OBJECT;
     }
-    int32_t fmt = mBuffer->flexFormat;
+    int32_t fmt = mLockedBuffer->flexFormat;
     switch (fmt) {
         case HAL_PIXEL_FORMAT_YCbCr_420_888:
-            *rowStride = (planeIdx == 0) ? mBuffer->stride : mBuffer->chromaStride;
+            *rowStride = (planeIdx == 0) ? mLockedBuffer->stride
+                                         : mLockedBuffer->chromaStride;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_YCrCb_420_SP:
-            *rowStride = mBuffer->width;
+            *rowStride = mLockedBuffer->width;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_YV12:
-            if (mBuffer->stride % 16) {
-                ALOGE("Stride %d is not 16 pixel aligned!", mBuffer->stride);
+            if (mLockedBuffer->stride % 16) {
+                ALOGE("Stride %d is not 16 pixel aligned!", mLockedBuffer->stride);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            *rowStride = (planeIdx == 0) ? mBuffer->stride : ALIGN(mBuffer->stride / 2, 16);
+            *rowStride = (planeIdx == 0) ? mLockedBuffer->stride
+                                         : ALIGN(mLockedBuffer->stride / 2, 16);
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_RAW10:
         case HAL_PIXEL_FORMAT_RAW12:
             // RAW10 and RAW12 are used for 10-bit and 12-bit raw data, they are single plane
-            *rowStride = mBuffer->stride;
+            *rowStride = mLockedBuffer->stride;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_Y8:
-            if (mBuffer->stride % 16) {
-                ALOGE("Stride %d is not 16 pixel aligned!", mBuffer->stride);
+            if (mLockedBuffer->stride % 16) {
+                ALOGE("Stride %d is not 16 pixel aligned!",
+                      mLockedBuffer->stride);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            *rowStride = mBuffer->stride;
+            *rowStride = mLockedBuffer->stride;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_Y16:
         case HAL_PIXEL_FORMAT_RAW16:
             // In native side, strides are specified in pixels, not in bytes.
             // Single plane 16bpp bayer data. even width/height,
             // row stride multiple of 16 pixels (32 bytes)
-            if (mBuffer->stride % 16) {
-                ALOGE("Stride %d is not 16 pixel aligned!", mBuffer->stride);
+            if (mLockedBuffer->stride % 16) {
+                ALOGE("Stride %d is not 16 pixel aligned!",
+                      mLockedBuffer->stride);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            *rowStride = mBuffer->stride * 2;
+            *rowStride = mLockedBuffer->stride * 2;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_RGB_565:
-            *rowStride = mBuffer->stride * 2;
+            *rowStride = mLockedBuffer->stride * 2;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_RGBA_8888:
         case HAL_PIXEL_FORMAT_RGBX_8888:
-            *rowStride = mBuffer->stride * 4;
+            *rowStride = mLockedBuffer->stride * 4;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_RGB_888:
             // Single plane, 24bpp.
-            *rowStride = mBuffer->stride * 3;
+            *rowStride = mLockedBuffer->stride * 3;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_BLOB:
         case HAL_PIXEL_FORMAT_RAW_OPAQUE:
@@ -300,13 +379,13 @@
 
 uint32_t
 AImage::getJpegSize() const {
-    if (mBuffer == nullptr) {
+    if (mLockedBuffer == nullptr) {
         LOG_ALWAYS_FATAL("Error: buffer is null");
     }
 
     uint32_t size = 0;
-    uint32_t width = mBuffer->width;
-    uint8_t* jpegBuffer = mBuffer->data;
+    uint32_t width = mLockedBuffer->width;
+    uint8_t* jpegBuffer = mLockedBuffer->data;
 
     // First check for JPEG transport header at the end of the buffer
     uint8_t* header = jpegBuffer + (width - sizeof(struct camera3_jpeg_blob));
@@ -334,6 +413,11 @@
 
 media_status_t
 AImage::getPlaneData(int planeIdx,/*out*/uint8_t** data, /*out*/int* dataLength) const {
+    if (mLockedBuffer == nullptr) {
+        ALOGE("%s: buffer not locked.", __FUNCTION__);
+        return AMEDIA_IMGREADER_IMAGE_NOT_LOCKED;
+    }
+
     if (planeIdx < 0 || planeIdx >= mNumPlanes) {
         ALOGE("Error: planeIdx %d out of bound [0,%d]",
                 planeIdx, mNumPlanes - 1);
@@ -352,140 +436,154 @@
     uint8_t* cr = nullptr;
     uint8_t* pData = nullptr;
     int bytesPerPixel = 0;
-    int32_t fmt = mBuffer->flexFormat;
+    int32_t fmt = mLockedBuffer->flexFormat;
 
     switch (fmt) {
         case HAL_PIXEL_FORMAT_YCbCr_420_888:
-            pData = (planeIdx == 0) ? mBuffer->data :
-                    (planeIdx == 1) ? mBuffer->dataCb : mBuffer->dataCr;
+            pData = (planeIdx == 0) ? mLockedBuffer->data
+                                    : (planeIdx == 1) ? mLockedBuffer->dataCb
+                                                      : mLockedBuffer->dataCr;
             // only map until last pixel
             if (planeIdx == 0) {
-                dataSize = mBuffer->stride * (mBuffer->height - 1) + mBuffer->width;
+                dataSize = mLockedBuffer->stride * (mLockedBuffer->height - 1) +
+                           mLockedBuffer->width;
             } else {
-                dataSize = mBuffer->chromaStride * (mBuffer->height / 2 - 1) +
-                        mBuffer->chromaStep * (mBuffer->width / 2 - 1) + 1;
+                dataSize =
+                    mLockedBuffer->chromaStride *
+                        (mLockedBuffer->height / 2 - 1) +
+                    mLockedBuffer->chromaStep * (mLockedBuffer->width / 2 - 1) +
+                    1;
             }
             break;
         // NV21
         case HAL_PIXEL_FORMAT_YCrCb_420_SP:
-            cr = mBuffer->data + (mBuffer->stride * mBuffer->height);
+            cr = mLockedBuffer->data +
+                 (mLockedBuffer->stride * mLockedBuffer->height);
             cb = cr + 1;
             // only map until last pixel
-            ySize = mBuffer->width * (mBuffer->height - 1) + mBuffer->width;
-            cSize = mBuffer->width * (mBuffer->height / 2 - 1) + mBuffer->width - 1;
-
-            pData = (planeIdx == 0) ? mBuffer->data :
-                    (planeIdx == 1) ? cb : cr;
+            ySize = mLockedBuffer->width * (mLockedBuffer->height - 1) +
+                    mLockedBuffer->width;
+            cSize = mLockedBuffer->width * (mLockedBuffer->height / 2 - 1) +
+                    mLockedBuffer->width - 1;
+            pData = (planeIdx == 0) ? mLockedBuffer->data
+                                    : (planeIdx == 1) ? cb : cr;
             dataSize = (planeIdx == 0) ? ySize : cSize;
             break;
         case HAL_PIXEL_FORMAT_YV12:
             // Y and C stride need to be 16 pixel aligned.
-            if (mBuffer->stride % 16) {
-                ALOGE("Stride %d is not 16 pixel aligned!", mBuffer->stride);
+            if (mLockedBuffer->stride % 16) {
+                ALOGE("Stride %d is not 16 pixel aligned!",
+                      mLockedBuffer->stride);
                 return AMEDIA_ERROR_UNKNOWN;
             }
 
-            ySize = mBuffer->stride * mBuffer->height;
-            cStride = ALIGN(mBuffer->stride / 2, 16);
-            cr = mBuffer->data + ySize;
-            cSize = cStride * mBuffer->height / 2;
+            ySize = mLockedBuffer->stride * mLockedBuffer->height;
+            cStride = ALIGN(mLockedBuffer->stride / 2, 16);
+            cr = mLockedBuffer->data + ySize;
+            cSize = cStride * mLockedBuffer->height / 2;
             cb = cr + cSize;
 
-            pData = (planeIdx == 0) ? mBuffer->data :
-                    (planeIdx == 1) ? cb : cr;
+            pData = (planeIdx == 0) ? mLockedBuffer->data
+                                    : (planeIdx == 1) ? cb : cr;
             dataSize = (planeIdx == 0) ? ySize : cSize;
             break;
         case HAL_PIXEL_FORMAT_Y8:
             // Single plane, 8bpp.
 
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height;
+            pData = mLockedBuffer->data;
+            dataSize = mLockedBuffer->stride * mLockedBuffer->height;
             break;
         case HAL_PIXEL_FORMAT_Y16:
             bytesPerPixel = 2;
 
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height * bytesPerPixel;
+            pData = mLockedBuffer->data;
+            dataSize =
+                mLockedBuffer->stride * mLockedBuffer->height * bytesPerPixel;
             break;
         case HAL_PIXEL_FORMAT_BLOB:
             // Used for JPEG data, height must be 1, width == size, single plane.
-            if (mBuffer->height != 1) {
-                ALOGE("Jpeg should have height value one but got %d", mBuffer->height);
+            if (mLockedBuffer->height != 1) {
+                ALOGE("Jpeg should have height value one but got %d",
+                      mLockedBuffer->height);
                 return AMEDIA_ERROR_UNKNOWN;
             }
 
-            pData = mBuffer->data;
+            pData = mLockedBuffer->data;
             dataSize = getJpegSize();
             break;
         case HAL_PIXEL_FORMAT_RAW16:
             // Single plane 16bpp bayer data.
             bytesPerPixel = 2;
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height * bytesPerPixel;
+            pData = mLockedBuffer->data;
+            dataSize =
+                mLockedBuffer->stride * mLockedBuffer->height * bytesPerPixel;
             break;
         case HAL_PIXEL_FORMAT_RAW_OPAQUE:
             // Used for RAW_OPAQUE data, height must be 1, width == size, single plane.
-            if (mBuffer->height != 1) {
-                ALOGE("RAW_OPAQUE should have height value one but got %d", mBuffer->height);
+            if (mLockedBuffer->height != 1) {
+                ALOGE("RAW_OPAQUE should have height value one but got %d",
+                      mLockedBuffer->height);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            pData = mBuffer->data;
-            dataSize = mBuffer->width;
+            pData = mLockedBuffer->data;
+            dataSize = mLockedBuffer->width;
             break;
         case HAL_PIXEL_FORMAT_RAW10:
             // Single plane 10bpp bayer data.
-            if (mBuffer->width % 4) {
-                ALOGE("Width is not multiple of 4 %d", mBuffer->width);
+            if (mLockedBuffer->width % 4) {
+                ALOGE("Width is not multiple of 4 %d", mLockedBuffer->width);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            if (mBuffer->height % 2) {
-                ALOGE("Height is not multiple of 2 %d", mBuffer->height);
+            if (mLockedBuffer->height % 2) {
+                ALOGE("Height is not multiple of 2 %d", mLockedBuffer->height);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            if (mBuffer->stride < (mBuffer->width * 10 / 8)) {
+            if (mLockedBuffer->stride < (mLockedBuffer->width * 10 / 8)) {
                 ALOGE("stride (%d) should be at least %d",
-                        mBuffer->stride, mBuffer->width * 10 / 8);
+                        mLockedBuffer->stride, mLockedBuffer->width * 10 / 8);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height;
+            pData = mLockedBuffer->data;
+            dataSize = mLockedBuffer->stride * mLockedBuffer->height;
             break;
         case HAL_PIXEL_FORMAT_RAW12:
             // Single plane 10bpp bayer data.
-            if (mBuffer->width % 4) {
-                ALOGE("Width is not multiple of 4 %d", mBuffer->width);
+            if (mLockedBuffer->width % 4) {
+                ALOGE("Width is not multiple of 4 %d", mLockedBuffer->width);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            if (mBuffer->height % 2) {
-                ALOGE("Height is not multiple of 2 %d", mBuffer->height);
+            if (mLockedBuffer->height % 2) {
+                ALOGE("Height is not multiple of 2 %d", mLockedBuffer->height);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            if (mBuffer->stride < (mBuffer->width * 12 / 8)) {
+            if (mLockedBuffer->stride < (mLockedBuffer->width * 12 / 8)) {
                 ALOGE("stride (%d) should be at least %d",
-                        mBuffer->stride, mBuffer->width * 12 / 8);
+                        mLockedBuffer->stride, mLockedBuffer->width * 12 / 8);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height;
+            pData = mLockedBuffer->data;
+            dataSize = mLockedBuffer->stride * mLockedBuffer->height;
             break;
         case HAL_PIXEL_FORMAT_RGBA_8888:
         case HAL_PIXEL_FORMAT_RGBX_8888:
             // Single plane, 32bpp.
             bytesPerPixel = 4;
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height * bytesPerPixel;
+            pData = mLockedBuffer->data;
+            dataSize =
+                mLockedBuffer->stride * mLockedBuffer->height * bytesPerPixel;
             break;
         case HAL_PIXEL_FORMAT_RGB_565:
             // Single plane, 16bpp.
             bytesPerPixel = 2;
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height * bytesPerPixel;
+            pData = mLockedBuffer->data;
+            dataSize =
+                mLockedBuffer->stride * mLockedBuffer->height * bytesPerPixel;
             break;
         case HAL_PIXEL_FORMAT_RGB_888:
             // Single plane, 24bpp.
             bytesPerPixel = 3;
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height * bytesPerPixel;
+            pData = mLockedBuffer->data;
+            dataSize = mLockedBuffer->stride * mLockedBuffer->height * bytesPerPixel;
             break;
         default:
             ALOGE("Pixel format: 0x%x is unsupported", fmt);
@@ -497,12 +595,31 @@
     return AMEDIA_OK;
 }
 
+media_status_t
+AImage::getHardwareBuffer(/*out*/AHardwareBuffer** buffer) const {
+    if (mBuffer == nullptr || mBuffer->mGraphicBuffer == nullptr) {
+        ALOGE("%s: AImage %p has no buffer.", __FUNCTION__, this);
+        return AMEDIA_ERROR_INVALID_OBJECT;
+    }
+
+    // TODO(jwcai) Someone from Android graphics team stating this should just be a static_cast.
+    *buffer = reinterpret_cast<AHardwareBuffer*>(mBuffer->mGraphicBuffer.get());
+    return AMEDIA_OK;
+}
+
 EXPORT
 void AImage_delete(AImage* image) {
     ALOGV("%s", __FUNCTION__);
+    AImage_deleteAsync(image, -1);
+    return;
+}
+
+EXPORT
+void AImage_deleteAsync(AImage* image, int releaseFenceFd) {
+    ALOGV("%s", __FUNCTION__);
     if (image != nullptr) {
         image->lockReader();
-        image->close();
+        image->close(releaseFenceFd);
         image->unlockReader();
         if (!image->isClosed()) {
             LOG_ALWAYS_FATAL("Image close failed!");
@@ -602,6 +719,12 @@
                 __FUNCTION__, image, pixelStride);
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
+    media_status_t ret = const_cast<AImage*>(image)->lockImage();
+    if (ret != AMEDIA_OK) {
+        ALOGE("%s: failed to lock buffer for CPU access. image %p, error=%d.",
+              __FUNCTION__, image, ret);
+        return ret;
+    }
     return image->getPlanePixelStride(planeIdx, pixelStride);
 }
 
@@ -614,6 +737,12 @@
                 __FUNCTION__, image, rowStride);
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
+    media_status_t ret = const_cast<AImage*>(image)->lockImage();
+    if (ret != AMEDIA_OK) {
+        ALOGE("%s: failed to lock buffer for CPU access. image %p, error=%d.",
+              __FUNCTION__, image, ret);
+        return ret;
+    }
     return image->getPlaneRowStride(planeIdx, rowStride);
 }
 
@@ -627,5 +756,23 @@
                 __FUNCTION__, image, data, dataLength);
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
+    media_status_t ret = const_cast<AImage*>(image)->lockImage();
+    if (ret != AMEDIA_OK) {
+        ALOGE("%s: failed to lock buffer for CPU access. image %p, error=%d.",
+              __FUNCTION__, image, ret);
+        return ret;
+    }
     return image->getPlaneData(planeIdx, data, dataLength);
 }
+
+EXPORT
+media_status_t AImage_getHardwareBuffer(
+    const AImage* image, /*out*/AHardwareBuffer** buffer) {
+    ALOGV("%s", __FUNCTION__);
+
+    if (image == nullptr || buffer == nullptr) {
+        ALOGE("%s: bad argument. image %p buffer %p", __FUNCTION__, image, buffer);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+    return image->getHardwareBuffer(buffer);
+}
diff --git a/media/ndk/NdkImagePriv.h b/media/ndk/NdkImagePriv.h
index 89d2b7c..e9073d5 100644
--- a/media/ndk/NdkImagePriv.h
+++ b/media/ndk/NdkImagePriv.h
@@ -21,6 +21,7 @@
 #include <utils/Log.h>
 #include <utils/StrongPointer.h>
 
+#include <gui/BufferItem.h>
 #include <gui/CpuConsumer.h>
 
 #include "NdkImageReaderPriv.h"
@@ -31,12 +32,12 @@
 
 // TODO: this only supports ImageReader
 struct AImage {
-    AImage(AImageReader* reader, int32_t format,
-            CpuConsumer::LockedBuffer* buffer, int64_t timestamp,
-            int32_t width, int32_t height, int32_t numPlanes);
+    AImage(AImageReader* reader, int32_t format, uint64_t usage, BufferItem* buffer,
+           int64_t timestamp, int32_t width, int32_t height, int32_t numPlanes);
 
     // free all resources while keeping object alive. Caller must obtain reader lock
-    void close();
+    void close() { close(-1); }
+    void close(int releaseFenceFd);
 
     // Remove from object memory. Must be called after close
     void free();
@@ -54,9 +55,13 @@
     media_status_t getNumPlanes(/*out*/int32_t* numPlanes) const;
     media_status_t getTimestamp(/*out*/int64_t* timestamp) const;
 
+    media_status_t lockImage();
+    media_status_t unlockImageIfLocked(/*out*/int* fenceFd);
+
     media_status_t getPlanePixelStride(int planeIdx, /*out*/int32_t* pixelStride) const;
     media_status_t getPlaneRowStride(int planeIdx, /*out*/int32_t* rowStride) const;
     media_status_t getPlaneData(int planeIdx,/*out*/uint8_t** data, /*out*/int* dataLength) const;
+    media_status_t getHardwareBuffer(/*out*/AHardwareBuffer** buffer) const;
 
   private:
     // AImage should be deleted through free() API.
@@ -69,7 +74,9 @@
     // When reader is close, AImage will only accept close API call
     wp<AImageReader>           mReader;
     const int32_t              mFormat;
-    CpuConsumer::LockedBuffer* mBuffer;
+    const uint64_t             mUsage;  // AHARDWAREBUFFER_USAGE_* flags.
+    BufferItem*                mBuffer;
+    std::unique_ptr<CpuConsumer::LockedBuffer> mLockedBuffer;
     const int64_t              mTimestamp;
     const int32_t              mWidth;
     const int32_t              mHeight;
diff --git a/media/ndk/NdkImageReader.cpp b/media/ndk/NdkImageReader.cpp
index 30aa7fb..5d1a20b 100644
--- a/media/ndk/NdkImageReader.cpp
+++ b/media/ndk/NdkImageReader.cpp
@@ -22,8 +22,12 @@
 #include "NdkImagePriv.h"
 #include "NdkImageReaderPriv.h"
 
+#include <cutils/atomic.h>
 #include <utils/Log.h>
+#include <android_media_Utils.h>
 #include <android_runtime/android_view_Surface.h>
+#include <android_runtime/android_hardware_HardwareBuffer.h>
+#include <grallocusage/GrallocUsageConversion.h>
 
 using namespace android;
 
@@ -37,10 +41,16 @@
 
 const char* AImageReader::kCallbackFpKey = "Callback";
 const char* AImageReader::kContextKey    = "Context";
+const char* AImageReader::kGraphicBufferKey = "GraphicBuffer";
 
 bool
 AImageReader::isSupportedFormat(int32_t format) {
     switch (format) {
+        case AIMAGE_FORMAT_RGBA_8888:
+        case AIMAGE_FORMAT_RGBX_8888:
+        case AIMAGE_FORMAT_RGB_888:
+        case AIMAGE_FORMAT_RGB_565:
+        case AIMAGE_FORMAT_RGBA_FP16:
         case AIMAGE_FORMAT_YUV_420_888:
         case AIMAGE_FORMAT_JPEG:
         case AIMAGE_FORMAT_RAW16:
@@ -60,6 +70,11 @@
     switch (format) {
         case AIMAGE_FORMAT_YUV_420_888:
             return 3;
+        case AIMAGE_FORMAT_RGBA_8888:
+        case AIMAGE_FORMAT_RGBX_8888:
+        case AIMAGE_FORMAT_RGB_888:
+        case AIMAGE_FORMAT_RGB_565:
+        case AIMAGE_FORMAT_RGBA_FP16:
         case AIMAGE_FORMAT_JPEG:
         case AIMAGE_FORMAT_RAW16:
         case AIMAGE_FORMAT_RAW_PRIVATE:
@@ -103,6 +118,45 @@
     return AMEDIA_OK;
 }
 
+void
+AImageReader::BufferRemovedListener::onBufferFreed(const wp<GraphicBuffer>& graphicBuffer) {
+    Mutex::Autolock _l(mLock);
+    sp<AImageReader> reader = mReader.promote();
+    if (reader == nullptr) {
+        ALOGW("A frame is available after AImageReader closed!");
+        return; // reader has been closed
+    }
+    if (mListener.onBufferRemoved == nullptr) {
+        return; // No callback registered
+    }
+
+    sp<GraphicBuffer> gBuffer = graphicBuffer.promote();
+    if (gBuffer == nullptr) {
+        ALOGW("A buffer being freed has gone away!");
+        return; // buffer is already destroyed
+    }
+
+    sp<AMessage> msg = new AMessage(AImageReader::kWhatBufferRemoved, reader->mHandler);
+    msg->setPointer(
+        AImageReader::kCallbackFpKey, (void*) mListener.onBufferRemoved);
+    msg->setPointer(AImageReader::kContextKey, mListener.context);
+    msg->setObject(AImageReader::kGraphicBufferKey, gBuffer);
+    msg->post();
+}
+
+media_status_t
+AImageReader::BufferRemovedListener::setBufferRemovedListener(
+    AImageReader_BufferRemovedListener* listener) {
+    Mutex::Autolock _l(mLock);
+    if (listener == nullptr) {
+        mListener.context = nullptr;
+        mListener.onBufferRemoved = nullptr;
+    } else {
+        mListener = *listener;
+    }
+    return AMEDIA_OK;
+}
+
 media_status_t
 AImageReader::setImageListenerLocked(AImageReader_ImageListener* listener) {
     return mFrameListener->setImageListener(listener);
@@ -114,9 +168,50 @@
     return setImageListenerLocked(listener);
 }
 
+media_status_t
+AImageReader::setBufferRemovedListenerLocked(AImageReader_BufferRemovedListener* listener) {
+    return mBufferRemovedListener->setBufferRemovedListener(listener);
+}
+
+media_status_t
+AImageReader::setBufferRemovedListener(AImageReader_BufferRemovedListener* listener) {
+    Mutex::Autolock _l(mLock);
+    return setBufferRemovedListenerLocked(listener);
+}
+
 void AImageReader::CallbackHandler::onMessageReceived(
         const sp<AMessage> &msg) {
     switch (msg->what()) {
+        case kWhatBufferRemoved:
+        {
+            AImageReader_BufferRemovedCallback onBufferRemoved;
+            void* context;
+            bool found = msg->findPointer(kCallbackFpKey, (void**) &onBufferRemoved);
+            if (!found || onBufferRemoved == nullptr) {
+                ALOGE("%s: Cannot find onBufferRemoved callback fp!", __FUNCTION__);
+                return;
+            }
+            found = msg->findPointer(kContextKey, &context);
+            if (!found) {
+                ALOGE("%s: Cannot find callback context!", __FUNCTION__);
+                return;
+            }
+            sp<RefBase> bufferToFree;
+            found = msg->findObject(kGraphicBufferKey, &bufferToFree);
+            if (!found || bufferToFree == nullptr) {
+                ALOGE("%s: Cannot find the buffer to free!", __FUNCTION__);
+                return;
+            }
+
+            // TODO(jwcai) Someone from Android graphics team stating this should just be a
+            // static_cast.
+            AHardwareBuffer* outBuffer = reinterpret_cast<AHardwareBuffer*>(bufferToFree.get());
+
+            // At this point, bufferToFree holds the last reference to the GraphicBuffer owned by
+            // this AImageReader, and the reference will be gone once this function returns.
+            (*onBufferRemoved)(context, mReader, outBuffer);
+            break;
+        }
         case kWhatImageAvailable:
         {
             AImageReader_ImageCallback onImageAvailable;
@@ -140,53 +235,61 @@
     }
 }
 
-AImageReader::AImageReader(int32_t width, int32_t height, int32_t format, int32_t maxImages) :
-        mWidth(width), mHeight(height), mFormat(format), mMaxImages(maxImages),
-        mNumPlanes(getNumPlanesForFormat(format)),
-        mFrameListener(new FrameListener(this)) {}
+AImageReader::AImageReader(int32_t width,
+                           int32_t height,
+                           int32_t format,
+                           uint64_t usage,
+                           int32_t maxImages)
+    : mWidth(width),
+      mHeight(height),
+      mFormat(format),
+      mUsage(usage),
+      mMaxImages(maxImages),
+      mNumPlanes(getNumPlanesForFormat(format)),
+      mFrameListener(new FrameListener(this)),
+      mBufferRemovedListener(new BufferRemovedListener(this)) {}
 
 media_status_t
 AImageReader::init() {
     PublicFormat publicFormat = static_cast<PublicFormat>(mFormat);
     mHalFormat = android_view_Surface_mapPublicFormatToHalFormat(publicFormat);
     mHalDataSpace = android_view_Surface_mapPublicFormatToHalDataspace(publicFormat);
+    mHalUsage = android_hardware_HardwareBuffer_convertToGrallocUsageBits(mUsage);
 
     sp<IGraphicBufferProducer> gbProducer;
     sp<IGraphicBufferConsumer> gbConsumer;
     BufferQueue::createBufferQueue(&gbProducer, &gbConsumer);
 
-    sp<CpuConsumer> cpuConsumer;
-    String8 consumerName = String8::format("ImageReader-%dx%df%xm%d-%d-%d",
-            mWidth, mHeight, mFormat, mMaxImages, getpid(),
+    String8 consumerName = String8::format("ImageReader-%dx%df%xu%" PRIu64 "m%d-%d-%d",
+            mWidth, mHeight, mFormat, mUsage, mMaxImages, getpid(),
             createProcessUniqueId());
 
-    cpuConsumer = new CpuConsumer(gbConsumer, mMaxImages, /*controlledByApp*/true);
-    if (cpuConsumer == nullptr) {
-        ALOGE("Failed to allocate CpuConsumer");
+    mBufferItemConsumer =
+            new BufferItemConsumer(gbConsumer, mHalUsage, mMaxImages, /*controlledByApp*/ true);
+    if (mBufferItemConsumer == nullptr) {
+        ALOGE("Failed to allocate BufferItemConsumer");
         return AMEDIA_ERROR_UNKNOWN;
     }
 
-    mCpuConsumer = cpuConsumer;
-    mCpuConsumer->setName(consumerName);
     mProducer = gbProducer;
-
-    sp<ConsumerBase> consumer = cpuConsumer;
-    consumer->setFrameAvailableListener(mFrameListener);
+    mBufferItemConsumer->setName(consumerName);
+    mBufferItemConsumer->setFrameAvailableListener(mFrameListener);
+    mBufferItemConsumer->setBufferFreedListener(mBufferRemovedListener);
 
     status_t res;
-    res = cpuConsumer->setDefaultBufferSize(mWidth, mHeight);
+    res = mBufferItemConsumer->setDefaultBufferSize(mWidth, mHeight);
     if (res != OK) {
-        ALOGE("Failed to set CpuConsumer buffer size");
+        ALOGE("Failed to set BufferItemConsumer buffer size");
         return AMEDIA_ERROR_UNKNOWN;
     }
-    res = cpuConsumer->setDefaultBufferFormat(mHalFormat);
+    res = mBufferItemConsumer->setDefaultBufferFormat(mHalFormat);
     if (res != OK) {
-        ALOGE("Failed to set CpuConsumer buffer format");
+        ALOGE("Failed to set BufferItemConsumer buffer format");
         return AMEDIA_ERROR_UNKNOWN;
     }
-    res = cpuConsumer->setDefaultBufferDataSpace(mHalDataSpace);
+    res = mBufferItemConsumer->setDefaultBufferDataSpace(mHalDataSpace);
     if (res != OK) {
-        ALOGE("Failed to set CpuConsumer buffer dataSpace");
+        ALOGE("Failed to set BufferItemConsumer buffer dataSpace");
         return AMEDIA_ERROR_UNKNOWN;
     }
 
@@ -198,7 +301,7 @@
     mWindow = static_cast<ANativeWindow*>(mSurface.get());
 
     for (int i = 0; i < mMaxImages; i++) {
-        CpuConsumer::LockedBuffer* buffer = new CpuConsumer::LockedBuffer;
+        BufferItem* buffer = new BufferItem;
         mBuffers.push_back(buffer);
     }
 
@@ -223,6 +326,9 @@
     AImageReader_ImageListener nullListener = {nullptr, nullptr};
     setImageListenerLocked(&nullListener);
 
+    AImageReader_BufferRemovedListener nullBufferRemovedListener = {nullptr, nullptr};
+    setBufferRemovedListenerLocked(&nullBufferRemovedListener);
+
     if (mCbLooper != nullptr) {
         mCbLooper->unregisterHandler(mHandler->id());
         mCbLooper->stop();
@@ -237,133 +343,154 @@
         image->close();
     }
 
-    // Delete LockedBuffers
+    // Delete Buffer Items
     for (auto it = mBuffers.begin();
               it != mBuffers.end(); it++) {
         delete *it;
     }
 
-    if (mCpuConsumer != nullptr) {
-        mCpuConsumer->abandon();
-        mCpuConsumer->setFrameAvailableListener(nullptr);
+    if (mBufferItemConsumer != nullptr) {
+        mBufferItemConsumer->abandon();
+        mBufferItemConsumer->setFrameAvailableListener(nullptr);
     }
 }
 
 media_status_t
-AImageReader::acquireCpuConsumerImageLocked(/*out*/AImage** image) {
+AImageReader::acquireImageLocked(/*out*/AImage** image, /*out*/int* acquireFenceFd) {
     *image = nullptr;
-    CpuConsumer::LockedBuffer* buffer = getLockedBufferLocked();
+    BufferItem* buffer = getBufferItemLocked();
     if (buffer == nullptr) {
         ALOGW("Unable to acquire a lockedBuffer, very likely client tries to lock more than"
             " maxImages buffers");
         return AMEDIA_IMGREADER_MAX_IMAGES_ACQUIRED;
     }
 
-    status_t res = mCpuConsumer->lockNextBuffer(buffer);
+    // When the output paramter fence is not NULL, we are acquiring the image asynchronously.
+    bool waitForFence = acquireFenceFd == nullptr;
+    status_t res = mBufferItemConsumer->acquireBuffer(buffer, 0, waitForFence);
+
     if (res != NO_ERROR) {
-        returnLockedBufferLocked(buffer);
-        if (res != BAD_VALUE /*no buffers*/) {
-            if (res == NOT_ENOUGH_DATA) {
+        returnBufferItemLocked(buffer);
+        if (res != BufferQueue::NO_BUFFER_AVAILABLE) {
+            if (res == INVALID_OPERATION) {
                 return AMEDIA_IMGREADER_MAX_IMAGES_ACQUIRED;
             } else {
-                ALOGE("%s Fail to lockNextBuffer with error: %d ",
-                      __FUNCTION__, res);
+                ALOGE("%s: Acquire image failed with some unknown error: %s (%d)",
+                      __FUNCTION__, strerror(-res), res);
                 return AMEDIA_ERROR_UNKNOWN;
             }
         }
         return AMEDIA_IMGREADER_NO_BUFFER_AVAILABLE;
     }
 
-    if (buffer->flexFormat == HAL_PIXEL_FORMAT_YCrCb_420_SP) {
-        ALOGE("NV21 format is not supported by AImageReader");
-        return AMEDIA_ERROR_UNSUPPORTED;
-    }
+    const int bufferWidth = getBufferWidth(buffer);
+    const int bufferHeight = getBufferHeight(buffer);
+    const int bufferFmt = buffer->mGraphicBuffer->getPixelFormat();
+    const int bufferUsage = buffer->mGraphicBuffer->getUsage();
 
-    // Check if the left-top corner of the crop rect is origin, we currently assume this point is
-    // zero, will revist this once this assumption turns out problematic.
-    Point lt = buffer->crop.leftTop();
-    if (lt.x != 0 || lt.y != 0) {
-        ALOGE("crop left top corner [%d, %d] need to be at origin", lt.x, lt.y);
-        return AMEDIA_ERROR_UNKNOWN;
-    }
+    const int readerWidth = mWidth;
+    const int readerHeight = mHeight;
+    const int readerFmt = mHalFormat;
+    const int readerUsage = mHalUsage;
 
-    // Check if the producer buffer configurations match what ImageReader configured.
-    int outputWidth = getBufferWidth(buffer);
-    int outputHeight = getBufferHeight(buffer);
-
-    int readerFmt = mHalFormat;
-    int readerWidth = mWidth;
-    int readerHeight = mHeight;
-
-    if ((buffer->format != HAL_PIXEL_FORMAT_BLOB) && (readerFmt != HAL_PIXEL_FORMAT_BLOB) &&
-            (readerWidth != outputWidth || readerHeight != outputHeight)) {
-        ALOGW("%s: Producer buffer size: %dx%d, doesn't match AImageReader configured size: %dx%d",
-                __FUNCTION__, outputWidth, outputHeight, readerWidth, readerHeight);
-    }
-
-    int bufFmt = buffer->format;
-    if (readerFmt == HAL_PIXEL_FORMAT_YCbCr_420_888) {
-        bufFmt = buffer->flexFormat;
-    }
-
-    if (readerFmt != bufFmt) {
-        if (readerFmt == HAL_PIXEL_FORMAT_YCbCr_420_888 && (bufFmt ==
-                HAL_PIXEL_FORMAT_YCrCb_420_SP || bufFmt == HAL_PIXEL_FORMAT_YV12)) {
-            // Special casing for when producer switches to a format compatible with flexible YUV
-            // (HAL_PIXEL_FORMAT_YCbCr_420_888).
-            mHalFormat = bufFmt;
-            ALOGD("%s: Overriding buffer format YUV_420_888 to %x.", __FUNCTION__, bufFmt);
-        } else {
-            // Return the buffer to the queue.
-            mCpuConsumer->unlockBuffer(*buffer);
-            returnLockedBufferLocked(buffer);
-
-            ALOGE("Producer output buffer format: 0x%x, ImageReader configured format: 0x%x",
-                    buffer->format, readerFmt);
-
+    // Check if the producer buffer configurations match what AImageReader configured. Add some
+    // extra checks for non-opaque formats.
+    if (!isFormatOpaque(readerFmt)) {
+        // Check if the left-top corner of the crop rect is origin, we currently assume this point
+        // is zero, will revisit this once this assumption turns out problematic.
+        Point lt = buffer->mCrop.leftTop();
+        if (lt.x != 0 || lt.y != 0) {
+            ALOGE("Crop left top corner [%d, %d] not at origin", lt.x, lt.y);
             return AMEDIA_ERROR_UNKNOWN;
         }
+
+        // Check if the producer buffer configurations match what ImageReader configured.
+        ALOGV_IF(readerWidth != bufferWidth || readerHeight != bufferHeight,
+                "%s: Buffer size: %dx%d, doesn't match AImageReader configured size: %dx%d",
+                __FUNCTION__, bufferWidth, bufferHeight, readerWidth, readerHeight);
+
+        // Check if the buffer usage is a super set of reader's usage bits, aka all usage bits that
+        // ImageReader requested has been supported from the producer side.
+        ALOGD_IF((readerUsage | bufferUsage) != bufferUsage,
+                "%s: Producer buffer usage: %x, doesn't cover all usage bits AImageReader "
+                "configured: %x",
+                __FUNCTION__, bufferUsage, readerUsage);
+
+        if (readerFmt != bufferFmt) {
+            if (readerFmt == HAL_PIXEL_FORMAT_YCbCr_420_888 && isPossiblyYUV(bufferFmt)) {
+                // Special casing for when producer switches to a format compatible with flexible
+                // YUV.
+                mHalFormat = bufferFmt;
+                ALOGD("%s: Overriding buffer format YUV_420_888 to 0x%x.", __FUNCTION__, bufferFmt);
+            } else {
+                // Return the buffer to the queue. No need to provide fence, as this buffer wasn't
+                // used anywhere yet.
+                mBufferItemConsumer->releaseBuffer(*buffer);
+                returnBufferItemLocked(buffer);
+
+                ALOGE("%s: Output buffer format: 0x%x, ImageReader configured format: 0x%x",
+                        __FUNCTION__, bufferFmt, readerFmt);
+
+                return AMEDIA_ERROR_UNKNOWN;
+            }
+        }
     }
 
     if (mHalFormat == HAL_PIXEL_FORMAT_BLOB) {
-        *image = new AImage(this, mFormat, buffer, buffer->timestamp,
-                            readerWidth, readerHeight, mNumPlanes);
+        *image = new AImage(this, mFormat, mUsage, buffer, buffer->mTimestamp,
+                readerWidth, readerHeight, mNumPlanes);
     } else {
-        *image = new AImage(this, mFormat, buffer, buffer->timestamp,
-                            outputWidth, outputHeight, mNumPlanes);
+        *image = new AImage(this, mFormat, mUsage, buffer, buffer->mTimestamp,
+                bufferWidth, bufferHeight, mNumPlanes);
     }
     mAcquiredImages.push_back(*image);
+
+    // When the output paramter fence is not NULL, we are acquiring the image asynchronously.
+    if (acquireFenceFd != nullptr) {
+        *acquireFenceFd = buffer->mFence->dup();
+    }
+
     return AMEDIA_OK;
 }
 
-CpuConsumer::LockedBuffer*
-AImageReader::getLockedBufferLocked() {
+BufferItem*
+AImageReader::getBufferItemLocked() {
     if (mBuffers.empty()) {
         return nullptr;
     }
-    // Return a LockedBuffer pointer and remove it from the list
+    // Return a BufferItem pointer and remove it from the list
     auto it = mBuffers.begin();
-    CpuConsumer::LockedBuffer* buffer = *it;
+    BufferItem* buffer = *it;
     mBuffers.erase(it);
     return buffer;
 }
 
 void
-AImageReader::returnLockedBufferLocked(CpuConsumer::LockedBuffer* buffer) {
+AImageReader::returnBufferItemLocked(BufferItem* buffer) {
     mBuffers.push_back(buffer);
 }
 
 void
-AImageReader::releaseImageLocked(AImage* image) {
-    CpuConsumer::LockedBuffer* buffer = image->mBuffer;
+AImageReader::releaseImageLocked(AImage* image, int releaseFenceFd) {
+    BufferItem* buffer = image->mBuffer;
     if (buffer == nullptr) {
         // This should not happen, but is not fatal
         ALOGW("AImage %p has no buffer!", image);
         return;
     }
 
-    mCpuConsumer->unlockBuffer(*buffer);
-    returnLockedBufferLocked(buffer);
+    int unlockFenceFd = -1;
+    media_status_t ret = image->unlockImageIfLocked(&unlockFenceFd);
+    if (ret < 0) {
+        ALOGW("%s: AImage %p is cannot be unlocked.", __FUNCTION__, image);
+        return;
+    }
+
+    sp<Fence> unlockFence = unlockFenceFd > 0 ? new Fence(unlockFenceFd) : Fence::NO_FENCE;
+    sp<Fence> releaseFence = releaseFenceFd > 0 ? new Fence(releaseFenceFd) : Fence::NO_FENCE;
+    sp<Fence> bufferFence = Fence::merge("AImageReader", unlockFence, releaseFence);
+    mBufferItemConsumer->releaseBuffer(*buffer, bufferFence);
+    returnBufferItemLocked(buffer);
     image->mBuffer = nullptr;
 
     bool found = false;
@@ -384,33 +511,35 @@
 }
 
 int
-AImageReader::getBufferWidth(CpuConsumer::LockedBuffer* buffer) {
-    if (buffer == nullptr) return -1;
+AImageReader::getBufferWidth(BufferItem* buffer) {
+    if (buffer == NULL) return -1;
 
-    if (!buffer->crop.isEmpty()) {
-        return buffer->crop.getWidth();
+    if (!buffer->mCrop.isEmpty()) {
+        return buffer->mCrop.getWidth();
     }
-    return buffer->width;
+
+    return buffer->mGraphicBuffer->getWidth();
 }
 
 int
-AImageReader::getBufferHeight(CpuConsumer::LockedBuffer* buffer) {
-    if (buffer == nullptr) return -1;
+AImageReader::getBufferHeight(BufferItem* buffer) {
+    if (buffer == NULL) return -1;
 
-    if (!buffer->crop.isEmpty()) {
-        return buffer->crop.getHeight();
+    if (!buffer->mCrop.isEmpty()) {
+        return buffer->mCrop.getHeight();
     }
-    return buffer->height;
+
+    return buffer->mGraphicBuffer->getHeight();
 }
 
 media_status_t
-AImageReader::acquireNextImage(/*out*/AImage** image) {
+AImageReader::acquireNextImage(/*out*/AImage** image, /*out*/int* acquireFenceFd) {
     Mutex::Autolock _l(mLock);
-    return acquireCpuConsumerImageLocked(image);
+    return acquireImageLocked(image, acquireFenceFd);
 }
 
 media_status_t
-AImageReader::acquireLatestImage(/*out*/AImage** image) {
+AImageReader::acquireLatestImage(/*out*/AImage** image, /*out*/int* acquireFenceFd) {
     if (image == nullptr) {
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
@@ -418,17 +547,26 @@
     *image = nullptr;
     AImage* prevImage = nullptr;
     AImage* nextImage = nullptr;
-    media_status_t ret = acquireCpuConsumerImageLocked(&prevImage);
+    media_status_t ret = acquireImageLocked(&prevImage, acquireFenceFd);
     if (prevImage == nullptr) {
         return ret;
     }
     for (;;) {
-        ret = acquireCpuConsumerImageLocked(&nextImage);
+        ret = acquireImageLocked(&nextImage, acquireFenceFd);
         if (nextImage == nullptr) {
             *image = prevImage;
             return AMEDIA_OK;
         }
-        prevImage->close();
+
+        if (acquireFenceFd == nullptr) {
+            // No need for release fence here since the prevImage is unused and acquireImageLocked
+            // has already waited for acquired fence to be signaled.
+            prevImage->close();
+        } else {
+            // Use the acquire fence as release fence, so that producer can wait before trying to
+            // refill the buffer.
+            prevImage->close(*acquireFenceFd);
+        }
         prevImage->free();
         prevImage = nextImage;
         nextImage = nullptr;
@@ -440,6 +578,15 @@
         int32_t width, int32_t height, int32_t format, int32_t maxImages,
         /*out*/AImageReader** reader) {
     ALOGV("%s", __FUNCTION__);
+    return AImageReader_newWithUsage(
+            width, height, format, AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN, maxImages, reader);
+}
+
+EXPORT
+media_status_t AImageReader_newWithUsage(
+        int32_t width, int32_t height, int32_t format, uint64_t usage,
+        int32_t maxImages, /*out*/ AImageReader** reader) {
+    ALOGV("%s", __FUNCTION__);
 
     if (width < 1 || height < 1) {
         ALOGE("%s: image dimension must be positive: w:%d h:%d",
@@ -453,6 +600,12 @@
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
 
+    if (maxImages > BufferQueueDefs::NUM_BUFFER_SLOTS) {
+        ALOGE("%s: max outstanding image count (%d) cannot be larget than %d.",
+              __FUNCTION__, maxImages, BufferQueueDefs::NUM_BUFFER_SLOTS);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
     if (!AImageReader::isSupportedFormat(format)) {
         ALOGE("%s: format %d is not supported by AImageReader",
                 __FUNCTION__, format);
@@ -464,8 +617,8 @@
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
 
-    //*reader = new AImageReader(width, height, format, maxImages);
-    AImageReader* tmpReader = new AImageReader(width, height, format, maxImages);
+    AImageReader* tmpReader = new AImageReader(
+        width, height, format, usage, maxImages);
     if (tmpReader == nullptr) {
         ALOGE("%s: AImageReader allocation failed", __FUNCTION__);
         return AMEDIA_ERROR_UNKNOWN;
@@ -553,23 +706,37 @@
 EXPORT
 media_status_t AImageReader_acquireNextImage(AImageReader* reader, /*out*/AImage** image) {
     ALOGV("%s", __FUNCTION__);
-    if (reader == nullptr || image == nullptr) {
-        ALOGE("%s: invalid argument. reader %p, maxImages %p",
-                __FUNCTION__, reader, image);
-        return AMEDIA_ERROR_INVALID_PARAMETER;
-    }
-    return reader->acquireNextImage(image);
+    return AImageReader_acquireNextImageAsync(reader, image, nullptr);
 }
 
 EXPORT
 media_status_t AImageReader_acquireLatestImage(AImageReader* reader, /*out*/AImage** image) {
     ALOGV("%s", __FUNCTION__);
+    return AImageReader_acquireLatestImageAsync(reader, image, nullptr);
+}
+
+EXPORT
+media_status_t AImageReader_acquireNextImageAsync(
+    AImageReader* reader, /*out*/AImage** image, /*out*/int* acquireFenceFd) {
+    ALOGV("%s", __FUNCTION__);
     if (reader == nullptr || image == nullptr) {
-        ALOGE("%s: invalid argument. reader %p, maxImages %p",
+        ALOGE("%s: invalid argument. reader %p, image %p",
                 __FUNCTION__, reader, image);
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
-    return reader->acquireLatestImage(image);
+    return reader->acquireNextImage(image, acquireFenceFd);
+}
+
+EXPORT
+media_status_t AImageReader_acquireLatestImageAsync(
+    AImageReader* reader, /*out*/AImage** image, /*out*/int* acquireFenceFd) {
+    ALOGV("%s", __FUNCTION__);
+    if (reader == nullptr || image == nullptr) {
+        ALOGE("%s: invalid argument. reader %p, image %p",
+                __FUNCTION__, reader, image);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+    return reader->acquireLatestImage(image, acquireFenceFd);
 }
 
 EXPORT
@@ -584,3 +751,16 @@
     reader->setImageListener(listener);
     return AMEDIA_OK;
 }
+
+EXPORT
+media_status_t AImageReader_setBufferRemovedListener(
+    AImageReader* reader, AImageReader_BufferRemovedListener* listener) {
+    ALOGV("%s", __FUNCTION__);
+    if (reader == nullptr) {
+        ALOGE("%s: invalid argument! reader %p", __FUNCTION__, reader);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
+    reader->setBufferRemovedListener(listener);
+    return AMEDIA_OK;
+}
diff --git a/media/ndk/NdkImageReaderPriv.h b/media/ndk/NdkImageReaderPriv.h
index 48f0953..35af169 100644
--- a/media/ndk/NdkImageReaderPriv.h
+++ b/media/ndk/NdkImageReaderPriv.h
@@ -25,7 +25,8 @@
 #include <utils/Mutex.h>
 #include <utils/StrongPointer.h>
 
-#include <gui/CpuConsumer.h>
+#include <gui/BufferItem.h>
+#include <gui/BufferItemConsumer.h>
 #include <gui/Surface.h>
 
 #include <media/stagefright/foundation/ALooper.h>
@@ -48,11 +49,14 @@
 
 struct AImageReader : public RefBase {
   public:
-
     static bool isSupportedFormat(int32_t format);
     static int getNumPlanesForFormat(int32_t format);
 
-    AImageReader(int32_t width, int32_t height, int32_t format, int32_t maxImages);
+    AImageReader(int32_t width,
+                 int32_t height,
+                 int32_t format,
+                 uint64_t usage,
+                 int32_t maxImages);
     ~AImageReader();
 
     // Inintialize AImageReader, uninitialized or failed to initialize AImageReader
@@ -60,9 +64,10 @@
     media_status_t init();
 
     media_status_t setImageListener(AImageReader_ImageListener* listener);
+    media_status_t setBufferRemovedListener(AImageReader_BufferRemovedListener* listener);
 
-    media_status_t acquireNextImage(/*out*/AImage** image);
-    media_status_t acquireLatestImage(/*out*/AImage** image);
+    media_status_t acquireNextImage(/*out*/AImage** image, /*out*/int* fenceFd);
+    media_status_t acquireLatestImage(/*out*/AImage** image, /*out*/int* fenceFd);
 
     ANativeWindow* getWindow()    const { return mWindow.get(); };
     int32_t        getWidth()     const { return mWidth; };
@@ -70,29 +75,33 @@
     int32_t        getFormat()    const { return mFormat; };
     int32_t        getMaxImages() const { return mMaxImages; };
 
-
   private:
 
     friend struct AImage; // for grabing reader lock
 
-    media_status_t acquireCpuConsumerImageLocked(/*out*/AImage** image);
-    CpuConsumer::LockedBuffer* getLockedBufferLocked();
-    void returnLockedBufferLocked(CpuConsumer::LockedBuffer* buffer);
+    BufferItem* getBufferItemLocked();
+    void returnBufferItemLocked(BufferItem* buffer);
+
+    // Called by AImageReader_acquireXXX to acquire a Buffer and setup AImage.
+    media_status_t acquireImageLocked(/*out*/AImage** image, /*out*/int* fenceFd);
 
     // Called by AImage to close image
-    void releaseImageLocked(AImage* image);
+    void releaseImageLocked(AImage* image, int releaseFenceFd);
 
-    static int getBufferWidth(CpuConsumer::LockedBuffer* buffer);
-    static int getBufferHeight(CpuConsumer::LockedBuffer* buffer);
+    static int getBufferWidth(BufferItem* buffer);
+    static int getBufferHeight(BufferItem* buffer);
 
     media_status_t setImageListenerLocked(AImageReader_ImageListener* listener);
+    media_status_t setBufferRemovedListenerLocked(AImageReader_BufferRemovedListener* listener);
 
     // definition of handler and message
     enum {
-        kWhatImageAvailable
+        kWhatBufferRemoved,
+        kWhatImageAvailable,
     };
     static const char* kCallbackFpKey;
     static const char* kContextKey;
+    static const char* kGraphicBufferKey;
     class CallbackHandler : public AHandler {
       public:
         CallbackHandler(AImageReader* reader) : mReader(reader) {}
@@ -102,17 +111,20 @@
     };
     sp<CallbackHandler> mHandler;
     sp<ALooper>         mCbLooper; // Looper thread where callbacks actually happen on
+    List<BufferItem*>   mBuffers;
 
-    List<CpuConsumer::LockedBuffer*> mBuffers;
     const int32_t mWidth;
     const int32_t mHeight;
     const int32_t mFormat;
+    const uint64_t mUsage;  // AHARDWAREBUFFER_USAGE_* flags.
     const int32_t mMaxImages;
+
+    // TODO(jwcai) Seems completely unused in AImageReader class.
     const int32_t mNumPlanes;
 
     struct FrameListener : public ConsumerBase::FrameAvailableListener {
       public:
-        FrameListener(AImageReader* parent) : mReader(parent) {}
+        explicit FrameListener(AImageReader* parent) : mReader(parent) {}
 
         void onFrameAvailable(const BufferItem& item) override;
 
@@ -125,12 +137,28 @@
     };
     sp<FrameListener> mFrameListener;
 
+    struct BufferRemovedListener : public BufferItemConsumer::BufferFreedListener {
+      public:
+        explicit BufferRemovedListener(AImageReader* parent) : mReader(parent) {}
+
+        void onBufferFreed(const wp<GraphicBuffer>& graphicBuffer) override;
+
+        media_status_t setBufferRemovedListener(AImageReader_BufferRemovedListener* listener);
+
+       private:
+        AImageReader_BufferRemovedListener mListener = {nullptr, nullptr};
+        wp<AImageReader>           mReader;
+        Mutex                      mLock;
+    };
+    sp<BufferRemovedListener> mBufferRemovedListener;
+
     int mHalFormat;
     android_dataspace mHalDataSpace;
+    uint64_t mHalUsage;
 
     sp<IGraphicBufferProducer> mProducer;
     sp<Surface>                mSurface;
-    sp<CpuConsumer>            mCpuConsumer;
+    sp<BufferItemConsumer>     mBufferItemConsumer;
     sp<ANativeWindow>          mWindow;
 
     List<AImage*>              mAcquiredImages;
diff --git a/media/ndk/NdkMediaCodec.cpp b/media/ndk/NdkMediaCodec.cpp
index 50b490d..6d02cf1 100644
--- a/media/ndk/NdkMediaCodec.cpp
+++ b/media/ndk/NdkMediaCodec.cpp
@@ -30,10 +30,12 @@
 
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/foundation/AMessage.h>
-#include <media/stagefright/foundation/ABuffer.h>
 
+#include <media/stagefright/PersistentSurface.h>
 #include <media/stagefright/MediaCodec.h>
 #include <media/stagefright/MediaErrors.h>
+#include <media/MediaCodecBuffer.h>
+#include <android/native_window.h>
 
 using namespace android;
 
@@ -54,12 +56,24 @@
     kWhatStopActivityNotifications,
 };
 
+struct AMediaCodecPersistentSurface : public Surface {
+    sp<PersistentSurface> mPersistentSurface;
+    AMediaCodecPersistentSurface(
+            const sp<IGraphicBufferProducer>& igbp,
+            const sp<PersistentSurface>& ps)
+            : Surface(igbp) {
+        mPersistentSurface = ps;
+    }
+    virtual ~AMediaCodecPersistentSurface() {
+        //mPersistentSurface ref will be let go off here
+    }
+};
 
 class CodecHandler: public AHandler {
 private:
     AMediaCodec* mCodec;
 public:
-    CodecHandler(AMediaCodec *codec);
+    explicit CodecHandler(AMediaCodec *codec);
     virtual void onMessageReceived(const sp<AMessage> &msg);
 };
 
@@ -268,13 +282,17 @@
 
 EXPORT
 uint8_t* AMediaCodec_getInputBuffer(AMediaCodec *mData, size_t idx, size_t *out_size) {
-    android::Vector<android::sp<android::ABuffer> > abufs;
+    android::Vector<android::sp<android::MediaCodecBuffer> > abufs;
     if (mData->mCodec->getInputBuffers(&abufs) == 0) {
         size_t n = abufs.size();
         if (idx >= n) {
             ALOGE("buffer index %zu out of range", idx);
             return NULL;
         }
+        if (abufs[idx] == NULL) {
+            ALOGE("buffer index %zu is NULL", idx);
+            return NULL;
+        }
         if (out_size != NULL) {
             *out_size = abufs[idx]->capacity();
         }
@@ -286,7 +304,7 @@
 
 EXPORT
 uint8_t* AMediaCodec_getOutputBuffer(AMediaCodec *mData, size_t idx, size_t *out_size) {
-    android::Vector<android::sp<android::ABuffer> > abufs;
+    android::Vector<android::sp<android::MediaCodecBuffer> > abufs;
     if (mData->mCodec->getOutputBuffers(&abufs) == 0) {
         size_t n = abufs.size();
         if (idx >= n) {
@@ -373,6 +391,94 @@
     return translate_error(mData->mCodec->setSurface(surface));
 }
 
+EXPORT
+media_status_t AMediaCodec_createInputSurface(AMediaCodec *mData, ANativeWindow **surface) {
+    if (surface == NULL || mData == NULL) {
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+    *surface = NULL;
+
+    sp<IGraphicBufferProducer> igbp = NULL;
+    status_t err = mData->mCodec->createInputSurface(&igbp);
+    if (err != NO_ERROR) {
+        return translate_error(err);
+    }
+
+    *surface = new Surface(igbp);
+    ANativeWindow_acquire(*surface);
+    return AMEDIA_OK;
+}
+
+EXPORT
+media_status_t AMediaCodec_createPersistentInputSurface(ANativeWindow **surface) {
+    if (surface == NULL) {
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+    *surface = NULL;
+
+    sp<PersistentSurface> ps = MediaCodec::CreatePersistentInputSurface();
+    if (ps == NULL) {
+        return AMEDIA_ERROR_UNKNOWN;
+    }
+
+    sp<IGraphicBufferProducer> igbp = ps->getBufferProducer();
+    if (igbp == NULL) {
+        return AMEDIA_ERROR_UNKNOWN;
+    }
+
+    *surface = new AMediaCodecPersistentSurface(igbp, ps);
+    ANativeWindow_acquire(*surface);
+
+    return AMEDIA_OK;
+}
+
+EXPORT
+media_status_t AMediaCodec_setInputSurface(
+        AMediaCodec *mData, ANativeWindow *surface) {
+
+    if (surface == NULL || mData == NULL) {
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
+    AMediaCodecPersistentSurface *aMediaPersistentSurface =
+            static_cast<AMediaCodecPersistentSurface *>(surface);
+    if (aMediaPersistentSurface->mPersistentSurface == NULL) {
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
+    return translate_error(mData->mCodec->setInputSurface(
+            aMediaPersistentSurface->mPersistentSurface));
+}
+
+EXPORT
+media_status_t AMediaCodec_setParameters(
+        AMediaCodec *mData, const AMediaFormat* params) {
+    if (params == NULL || mData == NULL) {
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+    sp<AMessage> nativeParams;
+    AMediaFormat_getFormat(params, &nativeParams);
+    ALOGV("setParameters: %s", nativeParams->debugString(0).c_str());
+
+    return translate_error(mData->mCodec->setParameters(nativeParams));
+}
+
+EXPORT
+media_status_t AMediaCodec_signalEndOfInputStream(AMediaCodec *mData) {
+
+    if (mData == NULL) {
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
+    status_t err = mData->mCodec->signalEndOfInputStream();
+    if (err == INVALID_OPERATION) {
+        return AMEDIA_ERROR_INVALID_OPERATION;
+    }
+
+    return translate_error(err);
+
+}
+
 //EXPORT
 media_status_t AMediaCodec_setNotificationCallback(AMediaCodec *mData, OnCodecEvent callback,
         void *userdata) {
diff --git a/media/ndk/NdkMediaDrm.cpp b/media/ndk/NdkMediaDrm.cpp
index 166e6f1..7a9240b 100644
--- a/media/ndk/NdkMediaDrm.cpp
+++ b/media/ndk/NdkMediaDrm.cpp
@@ -99,11 +99,12 @@
             break;
         default:
             ALOGE("Invalid event DrmPlugin::EventType %d, ignored", (int)eventType);
-            return;
+            goto cleanup;
     }
 
     (*mListener)(mObj, &sessionId, ndkEventType, extra, data, dataSize);
 
+ cleanup:
     delete [] sessionId.ptr;
     delete [] data;
 }
@@ -171,7 +172,8 @@
         return NULL;
     }
 
-    status_t err = drm->createPlugin(uuid);
+    String8 nullPackageName;
+    status_t err = drm->createPlugin(uuid, nullPackageName);
 
     if (err != OK) {
         return NULL;
diff --git a/media/ndk/NdkMediaExtractor.cpp b/media/ndk/NdkMediaExtractor.cpp
index 89f2d9c..805eafb 100644
--- a/media/ndk/NdkMediaExtractor.cpp
+++ b/media/ndk/NdkMediaExtractor.cpp
@@ -86,7 +86,6 @@
     jobject service = NULL;
     if (env == NULL) {
         ALOGE("setDataSource(path) must be called from Java thread");
-        env->ExceptionClear();
         return AMEDIA_ERROR_UNSUPPORTED;
     }
 
diff --git a/media/ndk/NdkMediaMuxer.cpp b/media/ndk/NdkMediaMuxer.cpp
index b1b0362..bbf33cd 100644
--- a/media/ndk/NdkMediaMuxer.cpp
+++ b/media/ndk/NdkMediaMuxer.cpp
@@ -81,7 +81,8 @@
 ssize_t AMediaMuxer_addTrack(AMediaMuxer *muxer, const AMediaFormat *format) {
     sp<AMessage> msg;
     AMediaFormat_getFormat(format, &msg);
-    return translate_error(muxer->mImpl->addTrack(msg));
+    ssize_t ret = muxer->mImpl->addTrack(msg);
+    return (ret >= 0) ? ret : translate_error(ret);
 }
 
 EXPORT
diff --git a/media/ndk/libmediandk.map.txt b/media/ndk/libmediandk.map.txt
new file mode 100644
index 0000000..d7ad370
--- /dev/null
+++ b/media/ndk/libmediandk.map.txt
@@ -0,0 +1,152 @@
+LIBMEDIANDK {
+  global:
+    AImageReader_acquireLatestImage; # introduced=24
+    AImageReader_acquireLatestImageAsync; # introduced=26
+    AImageReader_acquireNextImage; # introduced=24
+    AImageReader_acquireNextImageAsync; # introduced=26
+    AImageReader_delete; # introduced=24
+    AImageReader_getFormat; # introduced=24
+    AImageReader_getHeight; # introduced=24
+    AImageReader_getMaxImages; # introduced=24
+    AImageReader_getWidth; # introduced=24
+    AImageReader_getWindow; # introduced=24
+    AImageReader_new; # introduced=24
+    AImageReader_newWithUsage; # introduced=26
+    AImageReader_setBufferRemovedListener; # introduced=26
+    AImageReader_setImageListener; # introduced=24
+    AImage_delete; # introduced=24
+    AImage_deleteAsync; # introduced=26
+    AImage_getCropRect; # introduced=24
+    AImage_getFormat; # introduced=24
+    AImage_getHardwareBuffer; # introduced=26
+    AImage_getHeight; # introduced=24
+    AImage_getNumberOfPlanes; # introduced=24
+    AImage_getPlaneData; # introduced=24
+    AImage_getPlanePixelStride; # introduced=24
+    AImage_getPlaneRowStride; # introduced=24
+    AImage_getTimestamp; # introduced=24
+    AImage_getWidth; # introduced=24
+    AMEDIAFORMAT_KEY_AAC_PROFILE; # var
+    AMEDIAFORMAT_KEY_BIT_RATE; # var
+    AMEDIAFORMAT_KEY_CHANNEL_COUNT; # var
+    AMEDIAFORMAT_KEY_CHANNEL_MASK; # var
+    AMEDIAFORMAT_KEY_COLOR_FORMAT; # var
+    AMEDIAFORMAT_KEY_DURATION; # var
+    AMEDIAFORMAT_KEY_FLAC_COMPRESSION_LEVEL; # var
+    AMEDIAFORMAT_KEY_FRAME_RATE; # var
+    AMEDIAFORMAT_KEY_HEIGHT; # var
+    AMEDIAFORMAT_KEY_IS_ADTS; # var
+    AMEDIAFORMAT_KEY_IS_AUTOSELECT; # var
+    AMEDIAFORMAT_KEY_IS_DEFAULT; # var
+    AMEDIAFORMAT_KEY_IS_FORCED_SUBTITLE; # var
+    AMEDIAFORMAT_KEY_I_FRAME_INTERVAL; # var
+    AMEDIAFORMAT_KEY_LANGUAGE; # var
+    AMEDIAFORMAT_KEY_MAX_HEIGHT; # var
+    AMEDIAFORMAT_KEY_MAX_INPUT_SIZE; # var
+    AMEDIAFORMAT_KEY_MAX_WIDTH; # var
+    AMEDIAFORMAT_KEY_MIME; # var
+    AMEDIAFORMAT_KEY_PUSH_BLANK_BUFFERS_ON_STOP; # var
+    AMEDIAFORMAT_KEY_REPEAT_PREVIOUS_FRAME_AFTER; # var
+    AMEDIAFORMAT_KEY_SAMPLE_RATE; # var
+    AMEDIAFORMAT_KEY_STRIDE; # var
+    AMEDIAFORMAT_KEY_WIDTH; # var
+    AMediaCodecCryptoInfo_delete;
+    AMediaCodecCryptoInfo_getClearBytes;
+    AMediaCodecCryptoInfo_getEncryptedBytes;
+    AMediaCodecCryptoInfo_getIV;
+    AMediaCodecCryptoInfo_getKey;
+    AMediaCodecCryptoInfo_getMode;
+    AMediaCodecCryptoInfo_getNumSubSamples;
+    AMediaCodecCryptoInfo_new;
+    AMediaCodecCryptoInfo_setPattern; # introduced=24
+    AMediaCodec_configure;
+    AMediaCodec_createCodecByName;
+    AMediaCodec_createDecoderByType;
+    AMediaCodec_createEncoderByType;
+    AMediaCodec_delete;
+    AMediaCodec_dequeueInputBuffer;
+    AMediaCodec_dequeueOutputBuffer;
+    AMediaCodec_flush;
+    AMediaCodec_getInputBuffer;
+    AMediaCodec_getOutputBuffer;
+    AMediaCodec_getOutputFormat;
+    AMediaCodec_queueInputBuffer;
+    AMediaCodec_queueSecureInputBuffer;
+    AMediaCodec_releaseOutputBuffer;
+    AMediaCodec_releaseOutputBufferAtTime;
+    AMediaCodec_setOutputSurface; # introduced=24
+    AMediaCodec_setParameters; # introduced=26
+    AMediaCodec_setInputSurface; # introduced=26
+    AMediaCodec_createInputSurface; # introduced=26
+    AMediaCodec_signalEndOfInputStream; # introduced=26
+    AMediaCodec_createPersistentInputSurface; # introduced=26
+    AMediaCodec_start;
+    AMediaCodec_stop;
+    AMediaCrypto_delete;
+    AMediaCrypto_isCryptoSchemeSupported;
+    AMediaCrypto_new;
+    AMediaCrypto_requiresSecureDecoderComponent;
+    AMediaDrm_closeSession;
+    AMediaDrm_createByUUID;
+    AMediaDrm_decrypt;
+    AMediaDrm_encrypt;
+    AMediaDrm_getKeyRequest;
+    AMediaDrm_getPropertyByteArray;
+    AMediaDrm_getPropertyString;
+    AMediaDrm_getProvisionRequest;
+    AMediaDrm_getSecureStops;
+    AMediaDrm_isCryptoSchemeSupported;
+    AMediaDrm_openSession;
+    AMediaDrm_provideKeyResponse;
+    AMediaDrm_provideProvisionResponse;
+    AMediaDrm_queryKeyStatus;
+    AMediaDrm_release;
+    AMediaDrm_releaseSecureStops;
+    AMediaDrm_removeKeys;
+    AMediaDrm_restoreKeys;
+    AMediaDrm_setOnEventListener;
+    AMediaDrm_setPropertyByteArray;
+    AMediaDrm_setPropertyString;
+    AMediaDrm_sign;
+    AMediaDrm_verify;
+    AMediaExtractor_advance;
+    AMediaExtractor_delete;
+    AMediaExtractor_getPsshInfo;
+    AMediaExtractor_getSampleCryptoInfo;
+    AMediaExtractor_getSampleFlags;
+    AMediaExtractor_getSampleTime;
+    AMediaExtractor_getSampleTrackIndex;
+    AMediaExtractor_getTrackCount;
+    AMediaExtractor_getTrackFormat;
+    AMediaExtractor_new;
+    AMediaExtractor_readSampleData;
+    AMediaExtractor_seekTo;
+    AMediaExtractor_selectTrack;
+    AMediaExtractor_setDataSource;
+    AMediaExtractor_setDataSourceFd;
+    AMediaExtractor_unselectTrack;
+    AMediaFormat_delete;
+    AMediaFormat_getBuffer;
+    AMediaFormat_getFloat;
+    AMediaFormat_getInt32;
+    AMediaFormat_getInt64;
+    AMediaFormat_getSize;
+    AMediaFormat_getString;
+    AMediaFormat_new;
+    AMediaFormat_setBuffer;
+    AMediaFormat_setFloat;
+    AMediaFormat_setInt32;
+    AMediaFormat_setInt64;
+    AMediaFormat_setString;
+    AMediaFormat_toString;
+    AMediaMuxer_addTrack;
+    AMediaMuxer_delete;
+    AMediaMuxer_new;
+    AMediaMuxer_setLocation;
+    AMediaMuxer_setOrientationHint;
+    AMediaMuxer_start;
+    AMediaMuxer_stop;
+    AMediaMuxer_writeSampleData;
+  local:
+    *;
+};
diff --git a/media/utils/Android.bp b/media/utils/Android.bp
new file mode 100644
index 0000000..72917dd
--- /dev/null
+++ b/media/utils/Android.bp
@@ -0,0 +1,41 @@
+// Copyright 2017 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_library_shared {
+    name: "libmediautils",
+
+    srcs: [
+        "BatteryNotifier.cpp",
+        "ISchedulingPolicyService.cpp",
+        "MemoryLeakTrackUtil.cpp",
+        "ProcessInfo.cpp",
+        "SchedulingPolicyService.cpp",
+    ],
+    shared_libs: [
+        "libbinder",
+        "libcutils",
+        "liblog",
+        "libutils",
+        "libmemunreachable",
+    ],
+
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+    ],
+
+    local_include_dirs: ["include"],
+    export_include_dirs: ["include"],
+}
diff --git a/media/utils/Android.mk b/media/utils/Android.mk
deleted file mode 100644
index 54d22b1..0000000
--- a/media/utils/Android.mk
+++ /dev/null
@@ -1,41 +0,0 @@
-# Copyright 2015 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-LOCAL_PATH := $(call my-dir)
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
-  BatteryNotifier.cpp \
-  ISchedulingPolicyService.cpp \
-  SchedulingPolicyService.cpp
-
-LOCAL_SHARED_LIBRARIES := \
-  libbinder \
-  libcutils \
-  liblog \
-  libutils \
-
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
-
-LOCAL_CFLAGS += \
-  -Wall \
-  -Wextra \
-  -Werror \
-
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-
-LOCAL_MODULE := libmediautils
-
-include $(BUILD_SHARED_LIBRARY)
diff --git a/media/utils/BatteryNotifier.cpp b/media/utils/BatteryNotifier.cpp
index 341d391..09bc042 100644
--- a/media/utils/BatteryNotifier.cpp
+++ b/media/utils/BatteryNotifier.cpp
@@ -29,7 +29,7 @@
     BatteryNotifier::getInstance().onBatteryStatServiceDied();
 }
 
-BatteryNotifier::BatteryNotifier() : mVideoRefCount(0), mAudioRefCount(0) {}
+BatteryNotifier::BatteryNotifier() {}
 
 BatteryNotifier::~BatteryNotifier() {
     Mutex::Autolock _l(mLock);
@@ -38,77 +38,83 @@
     }
 }
 
-void BatteryNotifier::noteStartVideo() {
+void BatteryNotifier::noteStartVideo(uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    if (mVideoRefCount == 0 && batteryService != nullptr) {
-        batteryService->noteStartVideo(AID_MEDIA);
+    if (mVideoRefCounts[uid] == 0 && batteryService != nullptr) {
+        batteryService->noteStartVideo(uid);
     }
-    mVideoRefCount++;
+    mVideoRefCounts[uid]++;
 }
 
-void BatteryNotifier::noteStopVideo() {
+void BatteryNotifier::noteStopVideo(uid_t uid) {
     Mutex::Autolock _l(mLock);
-    if (mVideoRefCount == 0) {
-        ALOGW("%s: video refcount is broken.", __FUNCTION__);
+    if (mVideoRefCounts.find(uid) == mVideoRefCounts.end()) {
+        ALOGW("%s: video refcount is broken for uid(%d).", __FUNCTION__, (int)uid);
         return;
     }
 
     sp<IBatteryStats> batteryService = getBatteryService_l();
 
-    mVideoRefCount--;
-    if (mVideoRefCount == 0 && batteryService != nullptr) {
-        batteryService->noteStopVideo(AID_MEDIA);
+    mVideoRefCounts[uid]--;
+    if (mVideoRefCounts[uid] == 0) {
+        if (batteryService != nullptr) {
+            batteryService->noteStopVideo(uid);
+        }
+        mVideoRefCounts.erase(uid);
     }
 }
 
 void BatteryNotifier::noteResetVideo() {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    mVideoRefCount = 0;
+    mVideoRefCounts.clear();
     if (batteryService != nullptr) {
         batteryService->noteResetVideo();
     }
 }
 
-void BatteryNotifier::noteStartAudio() {
+void BatteryNotifier::noteStartAudio(uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    if (mAudioRefCount == 0 && batteryService != nullptr) {
-        batteryService->noteStartAudio(AID_AUDIOSERVER);
+    if (mAudioRefCounts[uid] == 0 && batteryService != nullptr) {
+        batteryService->noteStartAudio(uid);
     }
-    mAudioRefCount++;
+    mAudioRefCounts[uid]++;
 }
 
-void BatteryNotifier::noteStopAudio() {
+void BatteryNotifier::noteStopAudio(uid_t uid) {
     Mutex::Autolock _l(mLock);
-    if (mAudioRefCount == 0) {
-        ALOGW("%s: audio refcount is broken.", __FUNCTION__);
+    if (mAudioRefCounts.find(uid) == mAudioRefCounts.end()) {
+        ALOGW("%s: audio refcount is broken for uid(%d).", __FUNCTION__, (int)uid);
         return;
     }
 
     sp<IBatteryStats> batteryService = getBatteryService_l();
 
-    mAudioRefCount--;
-    if (mAudioRefCount == 0 && batteryService != nullptr) {
-        batteryService->noteStopAudio(AID_AUDIOSERVER);
+    mAudioRefCounts[uid]--;
+    if (mAudioRefCounts[uid] == 0) {
+        if (batteryService != nullptr) {
+            batteryService->noteStopAudio(uid);
+        }
+        mAudioRefCounts.erase(uid);
     }
 }
 
 void BatteryNotifier::noteResetAudio() {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    mAudioRefCount = 0;
+    mAudioRefCounts.clear();
     if (batteryService != nullptr) {
         batteryService->noteResetAudio();
     }
 }
 
-void BatteryNotifier::noteFlashlightOn(const String8& id, int uid) {
+void BatteryNotifier::noteFlashlightOn(const String8& id, uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
 
-    std::pair<String8, int> k = std::make_pair(id, uid);
+    std::pair<String8, uid_t> k = std::make_pair(id, uid);
     if (!mFlashlightState[k]) {
         mFlashlightState[k] = true;
         if (batteryService != nullptr) {
@@ -117,11 +123,11 @@
     }
 }
 
-void BatteryNotifier::noteFlashlightOff(const String8& id, int uid) {
+void BatteryNotifier::noteFlashlightOff(const String8& id, uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
 
-    std::pair<String8, int> k = std::make_pair(id, uid);
+    std::pair<String8, uid_t> k = std::make_pair(id, uid);
     if (mFlashlightState[k]) {
         mFlashlightState[k] = false;
         if (batteryService != nullptr) {
@@ -139,10 +145,10 @@
     }
 }
 
-void BatteryNotifier::noteStartCamera(const String8& id, int uid) {
+void BatteryNotifier::noteStartCamera(const String8& id, uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    std::pair<String8, int> k = std::make_pair(id, uid);
+    std::pair<String8, uid_t> k = std::make_pair(id, uid);
     if (!mCameraState[k]) {
         mCameraState[k] = true;
         if (batteryService != nullptr) {
@@ -151,10 +157,10 @@
     }
 }
 
-void BatteryNotifier::noteStopCamera(const String8& id, int uid) {
+void BatteryNotifier::noteStopCamera(const String8& id, uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    std::pair<String8, int> k = std::make_pair(id, uid);
+    std::pair<String8, uid_t> k = std::make_pair(id, uid);
     if (mCameraState[k]) {
         mCameraState[k] = false;
         if (batteryService != nullptr) {
@@ -176,7 +182,7 @@
     Mutex::Autolock _l(mLock);
     mBatteryStatService.clear();
     mDeathNotifier.clear();
-    // Do not reset mVideoRefCount and mAudioRefCount here. The ref
+    // Do not reset mVideoRefCounts and mAudioRefCounts here. The ref
     // counting is independent of the battery service availability.
     // We need this if battery service becomes available after media
     // started.
@@ -205,11 +211,13 @@
         // Notify start now if mediaserver or audioserver is already started.
         // 1) mediaserver and audioserver is started before batterystats service
         // 2) batterystats server may have crashed.
-        if (mVideoRefCount > 0) {
-            mBatteryStatService->noteStartVideo(AID_MEDIA);
+        std::map<uid_t, int>::iterator it = mVideoRefCounts.begin();
+        for (; it != mVideoRefCounts.end(); ++it) {
+            mBatteryStatService->noteStartVideo(it->first);
         }
-        if (mAudioRefCount > 0) {
-            mBatteryStatService->noteStartAudio(AID_AUDIOSERVER);
+        it = mAudioRefCounts.begin();
+        for (; it != mAudioRefCounts.end(); ++it) {
+            mBatteryStatService->noteStartAudio(it->first);
         }
         // TODO: Notify for camera and flashlight state as well?
     }
diff --git a/media/utils/ISchedulingPolicyService.cpp b/media/utils/ISchedulingPolicyService.cpp
index f55bc02..22fbc97 100644
--- a/media/utils/ISchedulingPolicyService.cpp
+++ b/media/utils/ISchedulingPolicyService.cpp
@@ -32,18 +32,20 @@
 class BpSchedulingPolicyService : public BpInterface<ISchedulingPolicyService>
 {
 public:
-    BpSchedulingPolicyService(const sp<IBinder>& impl)
+    explicit BpSchedulingPolicyService(const sp<IBinder>& impl)
         : BpInterface<ISchedulingPolicyService>(impl)
     {
     }
 
-    virtual int requestPriority(int32_t pid, int32_t tid, int32_t prio, bool asynchronous)
+    virtual int requestPriority(int32_t pid, int32_t tid,
+                                int32_t prio, bool isForApp, bool asynchronous)
     {
         Parcel data, reply;
         data.writeInterfaceToken(ISchedulingPolicyService::getInterfaceDescriptor());
         data.writeInt32(pid);
         data.writeInt32(tid);
         data.writeInt32(prio);
+        data.writeBool(isForApp);
         uint32_t flags = asynchronous ? IBinder::FLAG_ONEWAY : 0;
         status_t status = remote()->transact(REQUEST_PRIORITY_TRANSACTION, data, &reply, flags);
         if (status != NO_ERROR) {
diff --git a/media/utils/ISchedulingPolicyService.h b/media/utils/ISchedulingPolicyService.h
index b94b191..1015677 100644
--- a/media/utils/ISchedulingPolicyService.h
+++ b/media/utils/ISchedulingPolicyService.h
@@ -27,7 +27,7 @@
     DECLARE_META_INTERFACE(SchedulingPolicyService);
 
     virtual int         requestPriority(/*pid_t*/int32_t pid, /*pid_t*/int32_t tid,
-                                                int32_t prio, bool asynchronous) = 0;
+                                        int32_t prio, bool isForApp, bool asynchronous) = 0;
 
 };
 
diff --git a/media/libmedia/MemoryLeakTrackUtil.cpp b/media/utils/MemoryLeakTrackUtil.cpp
similarity index 100%
rename from media/libmedia/MemoryLeakTrackUtil.cpp
rename to media/utils/MemoryLeakTrackUtil.cpp
diff --git a/media/libstagefright/ProcessInfo.cpp b/media/utils/ProcessInfo.cpp
similarity index 100%
rename from media/libstagefright/ProcessInfo.cpp
rename to media/utils/ProcessInfo.cpp
diff --git a/media/utils/SchedulingPolicyService.cpp b/media/utils/SchedulingPolicyService.cpp
index 17ee9bc..d7055ef 100644
--- a/media/utils/SchedulingPolicyService.cpp
+++ b/media/utils/SchedulingPolicyService.cpp
@@ -28,7 +28,7 @@
 static const String16 _scheduling_policy("scheduling_policy");
 static Mutex sMutex;
 
-int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool asynchronous)
+int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool isForApp, bool asynchronous)
 {
     // FIXME merge duplicated code related to service lookup, caching, and error recovery
     int ret;
@@ -47,7 +47,7 @@
             sSchedulingPolicyService = sps;
             sMutex.unlock();
         }
-        ret = sps->requestPriority(pid, tid, prio, asynchronous);
+        ret = sps->requestPriority(pid, tid, prio, isForApp, asynchronous);
         if (ret != DEAD_OBJECT) {
             break;
         }
diff --git a/media/utils/include/mediautils/BatteryNotifier.h b/media/utils/include/mediautils/BatteryNotifier.h
index 49048042..a4e42ad 100644
--- a/media/utils/include/mediautils/BatteryNotifier.h
+++ b/media/utils/include/mediautils/BatteryNotifier.h
@@ -37,17 +37,17 @@
 public:
     ~BatteryNotifier();
 
-    void noteStartVideo();
-    void noteStopVideo();
+    void noteStartVideo(uid_t uid);
+    void noteStopVideo(uid_t uid);
     void noteResetVideo();
-    void noteStartAudio();
-    void noteStopAudio();
+    void noteStartAudio(uid_t uid);
+    void noteStopAudio(uid_t uid);
     void noteResetAudio();
-    void noteFlashlightOn(const String8& id, int uid);
-    void noteFlashlightOff(const String8& id, int uid);
+    void noteFlashlightOn(const String8& id, uid_t uid);
+    void noteFlashlightOff(const String8& id, uid_t uid);
     void noteResetFlashlight();
-    void noteStartCamera(const String8& id, int uid);
-    void noteStopCamera(const String8& id, int uid);
+    void noteStartCamera(const String8& id, uid_t uid);
+    void noteStopCamera(const String8& id, uid_t uid);
     void noteResetCamera();
 
 private:
@@ -58,10 +58,10 @@
     };
 
     Mutex mLock;
-    int mVideoRefCount;
-    int mAudioRefCount;
-    std::map<std::pair<String8, int>, bool> mFlashlightState;
-    std::map<std::pair<String8, int>, bool> mCameraState;
+    std::map<uid_t, int> mVideoRefCounts;
+    std::map<uid_t, int> mAudioRefCounts;
+    std::map<std::pair<String8, uid_t>, bool> mFlashlightState;
+    std::map<std::pair<String8, uid_t>, bool> mCameraState;
     sp<IBatteryStats> mBatteryStatService;
     sp<DeathNotifier> mDeathNotifier;
 
diff --git a/media/utils/include/mediautils/SchedulingPolicyService.h b/media/utils/include/mediautils/SchedulingPolicyService.h
index a9870d4..47d8734 100644
--- a/media/utils/include/mediautils/SchedulingPolicyService.h
+++ b/media/utils/include/mediautils/SchedulingPolicyService.h
@@ -24,7 +24,7 @@
 // The asynchronous parameter should be 'true' to return immediately,
 // after the request is enqueued but not necessarily executed.
 // The default value 'false' means to return after request has been enqueued and executed.
-int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool asynchronous = false);
+int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool isForApp, bool asynchronous = false);
 
 }   // namespace android
 
diff --git a/media/vndk/Android.bp b/media/vndk/Android.bp
new file mode 100644
index 0000000..a233d6c
--- /dev/null
+++ b/media/vndk/Android.bp
@@ -0,0 +1,4 @@
+subdirs = [
+    "*",
+]
+
diff --git a/media/vndk/xmlparser/1.0/Android.bp b/media/vndk/xmlparser/1.0/Android.bp
new file mode 100644
index 0000000..c48703c
--- /dev/null
+++ b/media/vndk/xmlparser/1.0/Android.bp
@@ -0,0 +1,37 @@
+cc_library_shared {
+
+    name: "libstagefright_xmlparser@1.0",
+
+    srcs: [
+        "MediaCodecsXmlParser.cpp",
+    ],
+
+    include_dirs: [
+        "frameworks/av/media/libstagefright",
+        "frameworks/av/include",
+    ],
+
+    shared_libs: [
+        "libexpat",
+        "libutils",
+        "liblog",
+        "libcutils",
+        "libstagefright_foundation",
+    ],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+    ],
+
+    clang: true,
+
+    sanitize: {
+        misc_undefined: [
+            "unsigned-integer-overflow",
+            "signed-integer-overflow",
+        ],
+    },
+
+}
+
diff --git a/media/vndk/xmlparser/1.0/MediaCodecsXmlParser.cpp b/media/vndk/xmlparser/1.0/MediaCodecsXmlParser.cpp
new file mode 100644
index 0000000..84e5514
--- /dev/null
+++ b/media/vndk/xmlparser/1.0/MediaCodecsXmlParser.cpp
@@ -0,0 +1,862 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaCodecsXmlParser"
+#include <utils/Log.h>
+
+#include <media/vndk/xmlparser/1.0/MediaCodecsXmlParser.h>
+
+#include <media/MediaCodecInfo.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AMessage.h>
+#include <media/stagefright/foundation/AUtils.h>
+#include <media/stagefright/MediaErrors.h>
+
+#include <sys/stat.h>
+
+#include <expat.h>
+#include <string>
+
+#define MEDIA_CODECS_CONFIG_FILE_PATH_MAX_LENGTH 256
+
+namespace android {
+
+namespace { // Local variables and functions
+
+const char *kProfilingResults =
+        "/data/misc/media/media_codecs_profiling_results.xml";
+
+// Treblized media codec list will be located in /odm/etc or /vendor/etc.
+const char *kConfigLocationList[] =
+        {"/odm/etc", "/vendor/etc", "/etc"};
+constexpr int kConfigLocationListSize =
+        (sizeof(kConfigLocationList) / sizeof(kConfigLocationList[0]));
+
+bool findMediaCodecListFileFullPath(
+        const char *file_name, std::string *out_path) {
+    for (int i = 0; i < kConfigLocationListSize; i++) {
+        *out_path = std::string(kConfigLocationList[i]) + "/" + file_name;
+        struct stat file_stat;
+        if (stat(out_path->c_str(), &file_stat) == 0 &&
+                S_ISREG(file_stat.st_mode)) {
+            return true;
+        }
+    }
+    return false;
+}
+
+// Find TypeInfo by name.
+std::vector<TypeInfo>::iterator findTypeInfo(
+        CodecInfo &codecInfo, const AString &typeName) {
+    return std::find_if(
+            codecInfo.mTypes.begin(), codecInfo.mTypes.end(),
+            [typeName](const auto &typeInfo) {
+                return typeInfo.mName == typeName;
+            });
+}
+
+// Convert a string into a boolean value.
+bool ParseBoolean(const char *s) {
+    if (!strcasecmp(s, "true") || !strcasecmp(s, "yes") || !strcasecmp(s, "y")) {
+        return true;
+    }
+    char *end;
+    unsigned long res = strtoul(s, &end, 10);
+    return *s != '\0' && *end == '\0' && res > 0;
+}
+
+} // unnamed namespace
+
+MediaCodecsXmlParser::MediaCodecsXmlParser() :
+    mInitCheck(NO_INIT),
+    mUpdate(false) {
+    std::string config_file_path;
+    if (findMediaCodecListFileFullPath(
+            "media_codecs.xml", &config_file_path)) {
+        parseTopLevelXMLFile(config_file_path.c_str(), false);
+    } else {
+        mInitCheck = NAME_NOT_FOUND;
+    }
+    if (findMediaCodecListFileFullPath(
+            "media_codecs_performance.xml", &config_file_path)) {
+        parseTopLevelXMLFile(config_file_path.c_str(), true);
+    }
+    parseTopLevelXMLFile(kProfilingResults, true);
+}
+
+void MediaCodecsXmlParser::parseTopLevelXMLFile(
+        const char *codecs_xml, bool ignore_errors) {
+    // get href_base
+    const char *href_base_end = strrchr(codecs_xml, '/');
+    if (href_base_end != NULL) {
+        mHrefBase = AString(codecs_xml, href_base_end - codecs_xml + 1);
+    }
+
+    mInitCheck = OK; // keeping this here for safety
+    mCurrentSection = SECTION_TOPLEVEL;
+    mDepth = 0;
+
+    parseXMLFile(codecs_xml);
+
+    if (mInitCheck != OK) {
+        if (ignore_errors) {
+            mInitCheck = OK;
+            return;
+        }
+        mCodecInfos.clear();
+        return;
+    }
+}
+
+MediaCodecsXmlParser::~MediaCodecsXmlParser() {
+}
+
+status_t MediaCodecsXmlParser::initCheck() const {
+    return mInitCheck;
+}
+
+void MediaCodecsXmlParser::parseXMLFile(const char *path) {
+    FILE *file = fopen(path, "r");
+
+    if (file == NULL) {
+        ALOGW("unable to open media codecs configuration xml file: %s", path);
+        mInitCheck = NAME_NOT_FOUND;
+        return;
+    }
+
+    ALOGV("Start parsing %s", path);
+    XML_Parser parser = ::XML_ParserCreate(NULL);
+    CHECK(parser != NULL);
+
+    ::XML_SetUserData(parser, this);
+    ::XML_SetElementHandler(
+            parser, StartElementHandlerWrapper, EndElementHandlerWrapper);
+
+    const int BUFF_SIZE = 512;
+    while (mInitCheck == OK) {
+        void *buff = ::XML_GetBuffer(parser, BUFF_SIZE);
+        if (buff == NULL) {
+            ALOGE("failed in call to XML_GetBuffer()");
+            mInitCheck = UNKNOWN_ERROR;
+            break;
+        }
+
+        int bytes_read = ::fread(buff, 1, BUFF_SIZE, file);
+        if (bytes_read < 0) {
+            ALOGE("failed in call to read");
+            mInitCheck = ERROR_IO;
+            break;
+        }
+
+        XML_Status status = ::XML_ParseBuffer(parser, bytes_read, bytes_read == 0);
+        if (status != XML_STATUS_OK) {
+            ALOGE("malformed (%s)", ::XML_ErrorString(::XML_GetErrorCode(parser)));
+            mInitCheck = ERROR_MALFORMED;
+            break;
+        }
+
+        if (bytes_read == 0) {
+            break;
+        }
+    }
+
+    ::XML_ParserFree(parser);
+
+    fclose(file);
+    file = NULL;
+}
+
+// static
+void MediaCodecsXmlParser::StartElementHandlerWrapper(
+        void *me, const char *name, const char **attrs) {
+    static_cast<MediaCodecsXmlParser *>(me)->startElementHandler(name, attrs);
+}
+
+// static
+void MediaCodecsXmlParser::EndElementHandlerWrapper(void *me, const char *name) {
+    static_cast<MediaCodecsXmlParser *>(me)->endElementHandler(name);
+}
+
+status_t MediaCodecsXmlParser::includeXMLFile(const char **attrs) {
+    const char *href = NULL;
+    size_t i = 0;
+    while (attrs[i] != NULL) {
+        if (!strcmp(attrs[i], "href")) {
+            if (attrs[i + 1] == NULL) {
+                return -EINVAL;
+            }
+            href = attrs[i + 1];
+            ++i;
+        } else {
+            ALOGE("includeXMLFile: unrecognized attribute: %s", attrs[i]);
+            return -EINVAL;
+        }
+        ++i;
+    }
+
+    // For security reasons and for simplicity, file names can only contain
+    // [a-zA-Z0-9_.] and must start with  media_codecs_ and end with .xml
+    for (i = 0; href[i] != '\0'; i++) {
+        if (href[i] == '.' || href[i] == '_' ||
+                (href[i] >= '0' && href[i] <= '9') ||
+                (href[i] >= 'A' && href[i] <= 'Z') ||
+                (href[i] >= 'a' && href[i] <= 'z')) {
+            continue;
+        }
+        ALOGE("invalid include file name: %s", href);
+        return -EINVAL;
+    }
+
+    AString filename = href;
+    if (!filename.startsWith("media_codecs_") ||
+        !filename.endsWith(".xml")) {
+        ALOGE("invalid include file name: %s", href);
+        return -EINVAL;
+    }
+    filename.insert(mHrefBase, 0);
+
+    parseXMLFile(filename.c_str());
+    return mInitCheck;
+}
+
+void MediaCodecsXmlParser::startElementHandler(
+        const char *name, const char **attrs) {
+    if (mInitCheck != OK) {
+        return;
+    }
+
+    bool inType = true;
+
+    if (!strcmp(name, "Include")) {
+        mInitCheck = includeXMLFile(attrs);
+        if (mInitCheck == OK) {
+            mPastSections.push(mCurrentSection);
+            mCurrentSection = SECTION_INCLUDE;
+        }
+        ++mDepth;
+        return;
+    }
+
+    switch (mCurrentSection) {
+        case SECTION_TOPLEVEL:
+        {
+            if (!strcmp(name, "Decoders")) {
+                mCurrentSection = SECTION_DECODERS;
+            } else if (!strcmp(name, "Encoders")) {
+                mCurrentSection = SECTION_ENCODERS;
+            } else if (!strcmp(name, "Settings")) {
+                mCurrentSection = SECTION_SETTINGS;
+            }
+            break;
+        }
+
+        case SECTION_SETTINGS:
+        {
+            if (!strcmp(name, "Setting")) {
+                mInitCheck = addSettingFromAttributes(attrs);
+            }
+            break;
+        }
+
+        case SECTION_DECODERS:
+        {
+            if (!strcmp(name, "MediaCodec")) {
+                mInitCheck =
+                    addMediaCodecFromAttributes(false /* encoder */, attrs);
+
+                mCurrentSection = SECTION_DECODER;
+            }
+            break;
+        }
+
+        case SECTION_ENCODERS:
+        {
+            if (!strcmp(name, "MediaCodec")) {
+                mInitCheck =
+                    addMediaCodecFromAttributes(true /* encoder */, attrs);
+
+                mCurrentSection = SECTION_ENCODER;
+            }
+            break;
+        }
+
+        case SECTION_DECODER:
+        case SECTION_ENCODER:
+        {
+            if (!strcmp(name, "Quirk")) {
+                mInitCheck = addQuirk(attrs);
+            } else if (!strcmp(name, "Type")) {
+                mInitCheck = addTypeFromAttributes(attrs, (mCurrentSection == SECTION_ENCODER));
+                mCurrentSection =
+                    (mCurrentSection == SECTION_DECODER
+                            ? SECTION_DECODER_TYPE : SECTION_ENCODER_TYPE);
+            }
+        }
+        inType = false;
+        // fall through
+
+        case SECTION_DECODER_TYPE:
+        case SECTION_ENCODER_TYPE:
+        {
+            // ignore limits and features specified outside of type
+            bool outside = !inType && mCurrentType == mCodecInfos[mCurrentName].mTypes.end();
+            if (outside && (!strcmp(name, "Limit") || !strcmp(name, "Feature"))) {
+                ALOGW("ignoring %s specified outside of a Type", name);
+            } else if (!strcmp(name, "Limit")) {
+                mInitCheck = addLimit(attrs);
+            } else if (!strcmp(name, "Feature")) {
+                mInitCheck = addFeature(attrs);
+            }
+            break;
+        }
+
+        default:
+            break;
+    }
+
+    ++mDepth;
+}
+
+void MediaCodecsXmlParser::endElementHandler(const char *name) {
+    if (mInitCheck != OK) {
+        return;
+    }
+
+    switch (mCurrentSection) {
+        case SECTION_SETTINGS:
+        {
+            if (!strcmp(name, "Settings")) {
+                mCurrentSection = SECTION_TOPLEVEL;
+            }
+            break;
+        }
+
+        case SECTION_DECODERS:
+        {
+            if (!strcmp(name, "Decoders")) {
+                mCurrentSection = SECTION_TOPLEVEL;
+            }
+            break;
+        }
+
+        case SECTION_ENCODERS:
+        {
+            if (!strcmp(name, "Encoders")) {
+                mCurrentSection = SECTION_TOPLEVEL;
+            }
+            break;
+        }
+
+        case SECTION_DECODER_TYPE:
+        case SECTION_ENCODER_TYPE:
+        {
+            if (!strcmp(name, "Type")) {
+                mCurrentSection =
+                    (mCurrentSection == SECTION_DECODER_TYPE
+                            ? SECTION_DECODER : SECTION_ENCODER);
+
+                mCurrentType = mCodecInfos[mCurrentName].mTypes.end();
+            }
+            break;
+        }
+
+        case SECTION_DECODER:
+        {
+            if (!strcmp(name, "MediaCodec")) {
+                mCurrentSection = SECTION_DECODERS;
+                mCurrentName.clear();
+            }
+            break;
+        }
+
+        case SECTION_ENCODER:
+        {
+            if (!strcmp(name, "MediaCodec")) {
+                mCurrentSection = SECTION_ENCODERS;
+                mCurrentName.clear();
+            }
+            break;
+        }
+
+        case SECTION_INCLUDE:
+        {
+            if (!strcmp(name, "Include") && mPastSections.size() > 0) {
+                mCurrentSection = mPastSections.top();
+                mPastSections.pop();
+            }
+            break;
+        }
+
+        default:
+            break;
+    }
+
+    --mDepth;
+}
+
+status_t MediaCodecsXmlParser::addSettingFromAttributes(const char **attrs) {
+    const char *name = NULL;
+    const char *value = NULL;
+    const char *update = NULL;
+
+    size_t i = 0;
+    while (attrs[i] != NULL) {
+        if (!strcmp(attrs[i], "name")) {
+            if (attrs[i + 1] == NULL) {
+                ALOGE("addSettingFromAttributes: name is null");
+                return -EINVAL;
+            }
+            name = attrs[i + 1];
+            ++i;
+        } else if (!strcmp(attrs[i], "value")) {
+            if (attrs[i + 1] == NULL) {
+                ALOGE("addSettingFromAttributes: value is null");
+                return -EINVAL;
+            }
+            value = attrs[i + 1];
+            ++i;
+        } else if (!strcmp(attrs[i], "update")) {
+            if (attrs[i + 1] == NULL) {
+                ALOGE("addSettingFromAttributes: update is null");
+                return -EINVAL;
+            }
+            update = attrs[i + 1];
+            ++i;
+        } else {
+            ALOGE("addSettingFromAttributes: unrecognized attribute: %s", attrs[i]);
+            return -EINVAL;
+        }
+
+        ++i;
+    }
+
+    if (name == NULL || value == NULL) {
+        ALOGE("addSettingFromAttributes: name or value unspecified");
+        return -EINVAL;
+    }
+
+    mUpdate = (update != NULL) && ParseBoolean(update);
+    if (mUpdate != (mGlobalSettings.count(name) > 0)) {
+        ALOGE("addSettingFromAttributes: updating non-existing setting");
+        return -EINVAL;
+    }
+    mGlobalSettings[name] = value;
+
+    return OK;
+}
+
+status_t MediaCodecsXmlParser::addMediaCodecFromAttributes(
+        bool encoder, const char **attrs) {
+    const char *name = NULL;
+    const char *type = NULL;
+    const char *update = NULL;
+
+    size_t i = 0;
+    while (attrs[i] != NULL) {
+        if (!strcmp(attrs[i], "name")) {
+            if (attrs[i + 1] == NULL) {
+                ALOGE("addMediaCodecFromAttributes: name is null");
+                return -EINVAL;
+            }
+            name = attrs[i + 1];
+            ++i;
+        } else if (!strcmp(attrs[i], "type")) {
+            if (attrs[i + 1] == NULL) {
+                ALOGE("addMediaCodecFromAttributes: type is null");
+                return -EINVAL;
+            }
+            type = attrs[i + 1];
+            ++i;
+        } else if (!strcmp(attrs[i], "update")) {
+            if (attrs[i + 1] == NULL) {
+                ALOGE("addMediaCodecFromAttributes: update is null");
+                return -EINVAL;
+            }
+            update = attrs[i + 1];
+            ++i;
+        } else {
+            ALOGE("addMediaCodecFromAttributes: unrecognized attribute: %s", attrs[i]);
+            return -EINVAL;
+        }
+
+        ++i;
+    }
+
+    if (name == NULL) {
+        ALOGE("addMediaCodecFromAttributes: name not found");
+        return -EINVAL;
+    }
+
+    mUpdate = (update != NULL) && ParseBoolean(update);
+    if (mUpdate != (mCodecInfos.count(name) > 0)) {
+        ALOGE("addMediaCodecFromAttributes: updating non-existing codec or vice versa");
+        return -EINVAL;
+    }
+
+    CodecInfo *info = &mCodecInfos[name];
+    if (mUpdate) {
+        // existing codec
+        mCurrentName = name;
+        mCurrentType = info->mTypes.begin();
+        if (type != NULL) {
+            // existing type
+            mCurrentType = findTypeInfo(*info, type);
+            if (mCurrentType == info->mTypes.end()) {
+                ALOGE("addMediaCodecFromAttributes: updating non-existing type");
+                return -EINVAL;
+            }
+        }
+    } else {
+        // new codec
+        mCurrentName = name;
+        mQuirks[name].clear();
+        info->mTypes.clear();
+        info->mTypes.emplace_back();
+        mCurrentType = --info->mTypes.end();
+        mCurrentType->mName = type;
+        info->mIsEncoder = encoder;
+    }
+
+    return OK;
+}
+
+status_t MediaCodecsXmlParser::addQuirk(const char **attrs) {
+    const char *name = NULL;
+
+    size_t i = 0;
+    while (attrs[i] != NULL) {
+        if (!strcmp(attrs[i], "name")) {
+            if (attrs[i + 1] == NULL) {
+                ALOGE("addQuirk: name is null");
+                return -EINVAL;
+            }
+            name = attrs[i + 1];
+            ++i;
+        } else {
+            ALOGE("addQuirk: unrecognized attribute: %s", attrs[i]);
+            return -EINVAL;
+        }
+
+        ++i;
+    }
+
+    if (name == NULL) {
+        ALOGE("addQuirk: name not found");
+        return -EINVAL;
+    }
+
+    mQuirks[mCurrentName].emplace_back(name);
+    return OK;
+}
+
+status_t MediaCodecsXmlParser::addTypeFromAttributes(const char **attrs, bool encoder) {
+    const char *name = NULL;
+    const char *update = NULL;
+
+    size_t i = 0;
+    while (attrs[i] != NULL) {
+        if (!strcmp(attrs[i], "name")) {
+            if (attrs[i + 1] == NULL) {
+                ALOGE("addTypeFromAttributes: name is null");
+                return -EINVAL;
+            }
+            name = attrs[i + 1];
+            ++i;
+        } else if (!strcmp(attrs[i], "update")) {
+            if (attrs[i + 1] == NULL) {
+                ALOGE("addTypeFromAttributes: update is null");
+                return -EINVAL;
+            }
+            update = attrs[i + 1];
+            ++i;
+        } else {
+            ALOGE("addTypeFromAttributes: unrecognized attribute: %s", attrs[i]);
+            return -EINVAL;
+        }
+
+        ++i;
+    }
+
+    if (name == NULL) {
+        return -EINVAL;
+    }
+
+    CodecInfo *info = &mCodecInfos[mCurrentName];
+    info->mIsEncoder = encoder;
+    mCurrentType = findTypeInfo(*info, name);
+    if (!mUpdate) {
+        if (mCurrentType != info->mTypes.end()) {
+            ALOGE("addTypeFromAttributes: re-defining existing type without update");
+            return -EINVAL;
+        }
+        info->mTypes.emplace_back();
+        mCurrentType = --info->mTypes.end();
+    } else if (mCurrentType == info->mTypes.end()) {
+        ALOGE("addTypeFromAttributes: updating non-existing type");
+        return -EINVAL;
+    }
+
+    return OK;
+}
+
+static status_t limitFoundMissingAttr(const AString &name, const char *attr, bool found = true) {
+    ALOGE("limit '%s' with %s'%s' attribute", name.c_str(),
+            (found ? "" : "no "), attr);
+    return -EINVAL;
+}
+
+static status_t limitError(const AString &name, const char *msg) {
+    ALOGE("limit '%s' %s", name.c_str(), msg);
+    return -EINVAL;
+}
+
+static status_t limitInvalidAttr(const AString &name, const char *attr, const AString &value) {
+    ALOGE("limit '%s' with invalid '%s' attribute (%s)", name.c_str(),
+            attr, value.c_str());
+    return -EINVAL;
+}
+
+status_t MediaCodecsXmlParser::addLimit(const char **attrs) {
+    sp<AMessage> msg = new AMessage();
+
+    size_t i = 0;
+    while (attrs[i] != NULL) {
+        if (attrs[i + 1] == NULL) {
+            ALOGE("addLimit: limit is not given");
+            return -EINVAL;
+        }
+
+        // attributes with values
+        if (!strcmp(attrs[i], "name")
+                || !strcmp(attrs[i], "default")
+                || !strcmp(attrs[i], "in")
+                || !strcmp(attrs[i], "max")
+                || !strcmp(attrs[i], "min")
+                || !strcmp(attrs[i], "range")
+                || !strcmp(attrs[i], "ranges")
+                || !strcmp(attrs[i], "scale")
+                || !strcmp(attrs[i], "value")) {
+            msg->setString(attrs[i], attrs[i + 1]);
+            ++i;
+        } else {
+            ALOGE("addLimit: unrecognized limit: %s", attrs[i]);
+            return -EINVAL;
+        }
+        ++i;
+    }
+
+    AString name;
+    if (!msg->findString("name", &name)) {
+        ALOGE("limit with no 'name' attribute");
+        return -EINVAL;
+    }
+
+    // size, blocks, bitrate, frame-rate, blocks-per-second, aspect-ratio,
+    // measured-frame-rate, measured-blocks-per-second: range
+    // quality: range + default + [scale]
+    // complexity: range + default
+    bool found;
+    if (mCurrentType == mCodecInfos[mCurrentName].mTypes.end()) {
+        ALOGW("ignoring null type");
+        return OK;
+    }
+
+    if (name == "aspect-ratio" || name == "bitrate" || name == "block-count"
+            || name == "blocks-per-second" || name == "complexity"
+            || name == "frame-rate" || name == "quality" || name == "size"
+            || name == "measured-blocks-per-second" || name.startsWith("measured-frame-rate-")) {
+        AString min, max;
+        if (msg->findString("min", &min) && msg->findString("max", &max)) {
+            min.append("-");
+            min.append(max);
+            if (msg->contains("range") || msg->contains("value")) {
+                return limitError(name, "has 'min' and 'max' as well as 'range' or "
+                        "'value' attributes");
+            }
+            msg->setString("range", min);
+        } else if (msg->contains("min") || msg->contains("max")) {
+            return limitError(name, "has only 'min' or 'max' attribute");
+        } else if (msg->findString("value", &max)) {
+            min = max;
+            min.append("-");
+            min.append(max);
+            if (msg->contains("range")) {
+                return limitError(name, "has both 'range' and 'value' attributes");
+            }
+            msg->setString("range", min);
+        }
+
+        AString range, scale = "linear", def, in_;
+        if (!msg->findString("range", &range)) {
+            return limitError(name, "with no 'range', 'value' or 'min'/'max' attributes");
+        }
+
+        if ((name == "quality" || name == "complexity") ^
+                (found = msg->findString("default", &def))) {
+            return limitFoundMissingAttr(name, "default", found);
+        }
+        if (name != "quality" && msg->findString("scale", &scale)) {
+            return limitFoundMissingAttr(name, "scale");
+        }
+        if ((name == "aspect-ratio") ^ (found = msg->findString("in", &in_))) {
+            return limitFoundMissingAttr(name, "in", found);
+        }
+
+        if (name == "aspect-ratio") {
+            if (!(in_ == "pixels") && !(in_ == "blocks")) {
+                return limitInvalidAttr(name, "in", in_);
+            }
+            in_.erase(5, 1); // (pixel|block)-aspect-ratio
+            in_.append("-");
+            in_.append(name);
+            name = in_;
+        }
+        if (name == "quality") {
+            mCurrentType->mDetails["quality-scale"] = scale;
+        }
+        if (name == "quality" || name == "complexity") {
+            AString tag = name;
+            tag.append("-default");
+            mCurrentType->mDetails[tag] = def;
+        }
+        AString tag = name;
+        tag.append("-range");
+        mCurrentType->mDetails[tag] = range;
+    } else {
+        AString max, value, ranges;
+        if (msg->contains("default")) {
+            return limitFoundMissingAttr(name, "default");
+        } else if (msg->contains("in")) {
+            return limitFoundMissingAttr(name, "in");
+        } else if ((name == "channel-count" || name == "concurrent-instances") ^
+                (found = msg->findString("max", &max))) {
+            return limitFoundMissingAttr(name, "max", found);
+        } else if (msg->contains("min")) {
+            return limitFoundMissingAttr(name, "min");
+        } else if (msg->contains("range")) {
+            return limitFoundMissingAttr(name, "range");
+        } else if ((name == "sample-rate") ^
+                (found = msg->findString("ranges", &ranges))) {
+            return limitFoundMissingAttr(name, "ranges", found);
+        } else if (msg->contains("scale")) {
+            return limitFoundMissingAttr(name, "scale");
+        } else if ((name == "alignment" || name == "block-size") ^
+                (found = msg->findString("value", &value))) {
+            return limitFoundMissingAttr(name, "value", found);
+        }
+
+        if (max.size()) {
+            AString tag = "max-";
+            tag.append(name);
+            mCurrentType->mDetails[tag] = max;
+        } else if (value.size()) {
+            mCurrentType->mDetails[name] = value;
+        } else if (ranges.size()) {
+            AString tag = name;
+            tag.append("-ranges");
+            mCurrentType->mDetails[tag] = ranges;
+        } else {
+            ALOGW("Ignoring unrecognized limit '%s'", name.c_str());
+        }
+    }
+
+    return OK;
+}
+
+status_t MediaCodecsXmlParser::addFeature(const char **attrs) {
+    size_t i = 0;
+    const char *name = NULL;
+    int32_t optional = -1;
+    int32_t required = -1;
+    const char *value = NULL;
+
+    while (attrs[i] != NULL) {
+        if (attrs[i + 1] == NULL) {
+            ALOGE("addFeature: feature is not given");
+            return -EINVAL;
+        }
+
+        // attributes with values
+        if (!strcmp(attrs[i], "name")) {
+            name = attrs[i + 1];
+            ++i;
+        } else if (!strcmp(attrs[i], "optional") || !strcmp(attrs[i], "required")) {
+            int value = (int)ParseBoolean(attrs[i + 1]);
+            if (!strcmp(attrs[i], "optional")) {
+                optional = value;
+            } else {
+                required = value;
+            }
+            ++i;
+        } else if (!strcmp(attrs[i], "value")) {
+            value = attrs[i + 1];
+            ++i;
+        } else {
+            ALOGE("addFeature: unrecognized attribute: %s", attrs[i]);
+            return -EINVAL;
+        }
+        ++i;
+    }
+    if (name == NULL) {
+        ALOGE("feature with no 'name' attribute");
+        return -EINVAL;
+    }
+
+    if (optional == required && optional != -1) {
+        ALOGE("feature '%s' is both/neither optional and required", name);
+        return -EINVAL;
+    }
+
+    if (mCurrentType == mCodecInfos[mCurrentName].mTypes.end()) {
+        ALOGW("ignoring null type");
+        return OK;
+    }
+    if (value != NULL) {
+        mCurrentType->mStringFeatures[name] = value;
+    } else {
+        mCurrentType->mBoolFeatures[name] = (required == 1) || (optional == 0);
+    }
+    return OK;
+}
+
+void MediaCodecsXmlParser::getGlobalSettings(
+        std::map<AString, AString> *settings) const {
+    settings->clear();
+    settings->insert(mGlobalSettings.begin(), mGlobalSettings.end());
+}
+
+status_t MediaCodecsXmlParser::getCodecInfo(const char *name, CodecInfo *info) const {
+    if (mCodecInfos.count(name) == 0) {
+        ALOGE("Codec not found with name '%s'", name);
+        return NAME_NOT_FOUND;
+    }
+    *info = mCodecInfos.at(name);
+    return OK;
+}
+
+status_t MediaCodecsXmlParser::getQuirks(const char *name, std::vector<AString> *quirks) const {
+    if (mQuirks.count(name) == 0) {
+        ALOGE("Codec not found with name '%s'", name);
+        return NAME_NOT_FOUND;
+    }
+    quirks->clear();
+    quirks->insert(quirks->end(), mQuirks.at(name).begin(), mQuirks.at(name).end());
+    return OK;
+}
+
+}  // namespace android
diff --git a/media/vndk/xmlparser/Android.bp b/media/vndk/xmlparser/Android.bp
new file mode 100644
index 0000000..a233d6c
--- /dev/null
+++ b/media/vndk/xmlparser/Android.bp
@@ -0,0 +1,4 @@
+subdirs = [
+    "*",
+]
+
diff --git a/radio/Android.mk b/radio/Android.mk
index 0377328..be5d283 100644
--- a/radio/Android.mk
+++ b/radio/Android.mk
@@ -27,7 +27,6 @@
 	libutils \
 	liblog \
 	libbinder \
-	libhardware \
 	libradio_metadata
 
 #LOCAL_C_INCLUDES += \
diff --git a/radio/IRadio.cpp b/radio/IRadio.cpp
index 242df77..72f3b68 100644
--- a/radio/IRadio.cpp
+++ b/radio/IRadio.cpp
@@ -16,6 +16,7 @@
 */
 
 #define LOG_TAG "IRadio"
+//#define LOG_NDEBUG 0
 #include <utils/Log.h>
 #include <utils/Errors.h>
 #include <binder/IMemory.h>
@@ -23,7 +24,7 @@
 #include <radio/IRadioService.h>
 #include <radio/IRadioClient.h>
 #include <system/radio.h>
-#include <system/radio_metadata.h>
+#include <system/RadioMetadataWrapper.h>
 
 namespace android {
 
@@ -44,7 +45,7 @@
 class BpRadio: public BpInterface<IRadio>
 {
 public:
-    BpRadio(const sp<IBinder>& impl)
+    explicit BpRadio(const sp<IBinder>& impl)
         : BpInterface<IRadio>(impl)
     {
     }
@@ -112,7 +113,7 @@
         if (status == NO_ERROR) {
             status = (status_t)reply.readInt32();
             if (status == NO_ERROR) {
-                int muteread = reply.readInt32();
+                int32_t muteread = reply.readInt32();
                 *mute = muteread != 0;
             }
         }
@@ -145,12 +146,12 @@
         return status;
     }
 
-    virtual status_t tune(unsigned int channel, unsigned int subChannel)
+    virtual status_t tune(uint32_t channel, uint32_t subChannel)
     {
         Parcel data, reply;
         data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
-        data.writeInt32(channel);
-        data.writeInt32(subChannel);
+        data.writeUint32(channel);
+        data.writeUint32(subChannel);
         status_t status = remote()->transact(TUNE, data, &reply);
         if (status == NO_ERROR) {
             status = (status_t)reply.readInt32();
@@ -172,7 +173,7 @@
     virtual status_t getProgramInformation(struct radio_program_info *info)
     {
         Parcel data, reply;
-        if (info == NULL) {
+        if (info == nullptr || info->metadata == nullptr) {
             return BAD_VALUE;
         }
         radio_metadata_t *metadata = info->metadata;
@@ -182,22 +183,19 @@
             status = (status_t)reply.readInt32();
             if (status == NO_ERROR) {
                 reply.read(info, sizeof(struct radio_program_info));
+                // restore local metadata pointer
                 info->metadata = metadata;
-                if (metadata == NULL) {
-                    return status;
+
+                uint32_t metadataSize = reply.readUint32();
+                if (metadataSize != 0) {
+                    radio_metadata_t *newMetadata = (radio_metadata_t *)malloc(metadataSize);
+                    if (newMetadata == NULL) {
+                        return NO_MEMORY;
+                    }
+                    reply.read(newMetadata, metadataSize);
+                    status = radio_metadata_add_metadata(&info->metadata, newMetadata);
+                    free(newMetadata);
                 }
-                size_t size = (size_t)reply.readInt32();
-                if (size == 0) {
-                    return status;
-                }
-                metadata =
-                    (radio_metadata_t *)calloc(size / sizeof(unsigned int), sizeof(unsigned int));
-                if (metadata == NULL) {
-                    return NO_MEMORY;
-                }
-                reply.read(metadata, size);
-                status = radio_metadata_add_metadata(&info->metadata, metadata);
-                free(metadata);
             }
         }
         return status;
@@ -288,8 +286,8 @@
         }
         case TUNE: {
             CHECK_INTERFACE(IRadio, data, reply);
-            unsigned int channel = (unsigned int)data.readInt32();
-            unsigned int subChannel = (unsigned int)data.readInt32();
+            uint32_t channel = data.readUint32();
+            uint32_t subChannel = data.readUint32();
             status_t status = tune(channel, subChannel);
             reply->writeInt32(status);
             return NO_ERROR;
@@ -303,25 +301,20 @@
         case GET_PROGRAM_INFORMATION: {
             CHECK_INTERFACE(IRadio, data, reply);
             struct radio_program_info info;
+            RadioMetadataWrapper metadataWrapper(&info.metadata);
 
-            status_t status = radio_metadata_allocate(&info.metadata, 0, 0);
-            if (status != NO_ERROR) {
-                return status;
-            }
-            status = getProgramInformation(&info);
+            status_t status = getProgramInformation(&info);
             reply->writeInt32(status);
             if (status == NO_ERROR) {
                 reply->write(&info, sizeof(struct radio_program_info));
-                int count = radio_metadata_get_count(info.metadata);
-                if (count > 0) {
+                if (radio_metadata_get_count(info.metadata) > 0) {
                     size_t size = radio_metadata_get_size(info.metadata);
-                    reply->writeInt32(size);
+                    reply->writeUint32((uint32_t)size);
                     reply->write(info.metadata, size);
                 } else {
-                    reply->writeInt32(0);
+                    reply->writeUint32(0);
                 }
             }
-            radio_metadata_deallocate(info.metadata);
             return NO_ERROR;
         }
         case HAS_CONTROL: {
diff --git a/radio/IRadioClient.cpp b/radio/IRadioClient.cpp
index 033ca49..ca21949 100644
--- a/radio/IRadioClient.cpp
+++ b/radio/IRadioClient.cpp
@@ -33,7 +33,7 @@
 {
 
 public:
-    BpRadioClient(const sp<IBinder>& impl)
+    explicit BpRadioClient(const sp<IBinder>& impl)
         : BpInterface<IRadioClient>(impl)
     {
     }
diff --git a/radio/IRadioService.cpp b/radio/IRadioService.cpp
index 81acf9e..72e3a61 100644
--- a/radio/IRadioService.cpp
+++ b/radio/IRadioService.cpp
@@ -16,8 +16,7 @@
 */
 
 #define LOG_TAG "BpRadioService"
-//
-#define LOG_NDEBUG 0
+//#define LOG_NDEBUG 0
 
 #include <utils/Log.h>
 #include <utils/Errors.h>
@@ -45,7 +44,7 @@
 class BpRadioService: public BpInterface<IRadioService>
 {
 public:
-    BpRadioService(const sp<IBinder>& impl)
+    explicit BpRadioService(const sp<IBinder>& impl)
         : BpInterface<IRadioService>(impl)
     {
     }
@@ -58,12 +57,12 @@
         }
         Parcel data, reply;
         data.writeInterfaceToken(IRadioService::getInterfaceDescriptor());
-        unsigned int numModulesReq = (properties == NULL) ? 0 : *numModules;
+        uint32_t numModulesReq = (properties == NULL) ? 0 : *numModules;
         data.writeInt32(numModulesReq);
         status_t status = remote()->transact(LIST_MODULES, data, &reply);
         if (status == NO_ERROR) {
             status = (status_t)reply.readInt32();
-            *numModules = (unsigned int)reply.readInt32();
+            *numModules = (uint32_t)reply.readInt32();
         }
         ALOGV("listModules() status %d got *numModules %d", status, *numModules);
         if (status == NO_ERROR) {
@@ -88,7 +87,9 @@
         data.writeInt32(handle);
         data.writeStrongBinder(IInterface::asBinder(client));
         ALOGV("attach() config %p withAudio %d region %d type %d",
-              config == NULL ? 0 : config, withAudio, config->region, config->band.type);
+              config == NULL ? 0 : config, withAudio,
+              config == NULL ? 0 : config->region,
+              config == NULL ? 0 : config->band.type);
         if (config == NULL) {
             data.writeInt32(0);
         } else {
@@ -118,11 +119,11 @@
     switch(code) {
         case LIST_MODULES: {
             CHECK_INTERFACE(IRadioService, data, reply);
-            unsigned int numModulesReq = data.readInt32();
+            uint32_t numModulesReq = data.readInt32();
             if (numModulesReq > MAX_ITEMS_PER_LIST) {
                 numModulesReq = MAX_ITEMS_PER_LIST;
             }
-            unsigned int numModules = numModulesReq;
+            uint32_t numModules = numModulesReq;
             struct radio_properties *properties =
                     (struct radio_properties *)calloc(numModulesReq,
                                                       sizeof(struct radio_properties));
diff --git a/radio/Radio.cpp b/radio/Radio.cpp
index 3c04fb0..fa39589 100644
--- a/radio/Radio.cpp
+++ b/radio/Radio.cpp
@@ -240,20 +240,31 @@
         return;
     }
 
+    // The event layout in shared memory is:
+    // sizeof(struct radio_event) bytes : the event itself
+    // 4 bytes                          : metadata size or 0
+    // N bytes                          : metadata if present
     struct radio_event *event = (struct radio_event *)eventMemory->pointer();
+    uint32_t metadataOffset = sizeof(struct radio_event) + sizeof(uint32_t);
+    uint32_t metadataSize = *(uint32_t *)((uint8_t *)event + metadataOffset - sizeof(uint32_t));
+
     // restore local metadata pointer from offset
     switch (event->type) {
     case RADIO_EVENT_TUNED:
     case RADIO_EVENT_AF_SWITCH:
-        if (event->info.metadata != NULL) {
+        if (metadataSize != 0) {
             event->info.metadata =
-                    (radio_metadata_t *)((char *)event + (size_t)event->info.metadata);
+                    (radio_metadata_t *)((uint8_t *)event + metadataOffset);
+        } else {
+            event->info.metadata = 0;
         }
         break;
     case RADIO_EVENT_METADATA:
-        if (event->metadata != NULL) {
+        if (metadataSize != 0) {
             event->metadata =
-                    (radio_metadata_t *)((char *)event + (size_t)event->metadata);
+                    (radio_metadata_t *)((uint8_t *)event + metadataOffset);
+        } else {
+            event->metadata = 0;
         }
         break;
     default:
diff --git a/services/audioflinger/Android.mk b/services/audioflinger/Android.mk
index 8b831f0..0c620f4 100644
--- a/services/audioflinger/Android.mk
+++ b/services/audioflinger/Android.mk
@@ -28,41 +28,37 @@
     AudioStreamOut.cpp          \
     SpdifStreamOut.cpp          \
     Effects.cpp                 \
-    AudioMixer.cpp.arm          \
-    BufferProviders.cpp         \
     PatchPanel.cpp              \
-    StateQueue.cpp
+    StateQueue.cpp              \
+    BufLog.cpp                  \
+    TypedLogger.cpp
 
 LOCAL_C_INCLUDES := \
     $(TOPDIR)frameworks/av/services/audiopolicy \
-    $(TOPDIR)external/sonic \
-    libcore/include \
-    $(call include-path-for, audio-effects) \
+    $(TOPDIR)frameworks/av/services/medialog \
     $(call include-path-for, audio-utils)
 
 LOCAL_SHARED_LIBRARIES := \
-    libaudioresampler \
+    libaudiohal \
+    libaudioprocessing \
     libaudiospdif \
     libaudioutils \
     libcutils \
     libutils \
     liblog \
     libbinder \
-    libmedia \
+    libaudioclient \
+    libmedialogservice \
     libmediautils \
     libnbaio \
-    libhardware \
-    libhardware_legacy \
-    libeffects \
     libpowermanager \
     libserviceutility \
-    libsonic \
     libmediautils \
-    libmemunreachable
+    libmemunreachable \
+    libmedia_helper
 
 LOCAL_STATIC_LIBRARIES := \
     libcpustats \
-    libmedia_helper
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
 
@@ -88,59 +84,4 @@
 
 include $(BUILD_SHARED_LIBRARY)
 
-#
-# build audio resampler test tool
-#
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:=               \
-    test-resample.cpp           \
-
-LOCAL_C_INCLUDES := \
-    $(call include-path-for, audio-utils)
-
-LOCAL_STATIC_LIBRARIES := \
-    libsndfile
-
-LOCAL_SHARED_LIBRARIES := \
-    libaudioresampler \
-    libaudioutils \
-    libdl \
-    libcutils \
-    libutils \
-    liblog
-
-LOCAL_MODULE:= test-resample
-
-LOCAL_MODULE_TAGS := optional
-
-LOCAL_CFLAGS := -Werror -Wall
-
-include $(BUILD_EXECUTABLE)
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:= \
-    AudioResampler.cpp.arm \
-    AudioResamplerCubic.cpp.arm \
-    AudioResamplerSinc.cpp.arm \
-    AudioResamplerDyn.cpp.arm
-
-LOCAL_C_INCLUDES := \
-    $(call include-path-for, audio-utils)
-
-LOCAL_SHARED_LIBRARIES := \
-    libcutils \
-    libdl \
-    liblog
-
-LOCAL_MODULE := libaudioresampler
-
-LOCAL_CFLAGS := -Werror -Wall
-
-# uncomment to disable NEON on architectures that actually do support NEON, for benchmarking
-#LOCAL_CFLAGS += -DUSE_NEON=false
-
-include $(BUILD_SHARED_LIBRARY)
-
 include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index fec3a57..9f19dfd 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -31,6 +31,11 @@
 #include <utils/Log.h>
 #include <utils/Trace.h>
 #include <binder/Parcel.h>
+#include <media/audiohal/DeviceHalInterface.h>
+#include <media/audiohal/DevicesFactoryHalInterface.h>
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+#include <media/AudioParameter.h>
+#include <media/TypeConverter.h>
 #include <memunreachable/memunreachable.h>
 #include <utils/String16.h>
 #include <utils/threads.h>
@@ -40,18 +45,15 @@
 #include <cutils/properties.h>
 
 #include <system/audio.h>
-#include <hardware/audio.h>
 
-#include "AudioMixer.h"
 #include "AudioFlinger.h"
 #include "ServiceUtilities.h"
 
 #include <media/AudioResamplerPublic.h>
 
-#include <media/EffectsFactoryApi.h>
-#include <audio_effects/effect_visualizer.h>
-#include <audio_effects/effect_ns.h>
-#include <audio_effects/effect_aec.h>
+#include <system/audio_effects/effect_visualizer.h>
+#include <system/audio_effects/effect_ns.h>
+#include <system/audio_effects/effect_aec.h>
 
 #include <audio_utils/primitives.h>
 
@@ -65,6 +67,11 @@
 #include <mediautils/BatteryNotifier.h>
 #include <private/android_filesystem_config.h>
 
+//#define BUFLOG_NDEBUG 0
+#include <BufLog.h>
+
+#include "TypedLogger.h"
+
 // ----------------------------------------------------------------------------
 
 // Note: the following macro is used for extremely verbose logging message.  In
@@ -85,12 +92,14 @@
 static const char kDeadlockedString[] = "AudioFlinger may be deadlocked\n";
 static const char kHardwareLockedString[] = "Hardware lock is taken\n";
 static const char kClientLockedString[] = "Client lock is taken\n";
+static const char kNoEffectsFactory[] = "Effects Factory is absent\n";
 
 
 nsecs_t AudioFlinger::mStandbyTimeInNsecs = kDefaultStandbyTimeInNsecs;
 
 uint32_t AudioFlinger::mScreenState;
 
+
 #ifdef TEE_SINK
 bool AudioFlinger::mTeeSinkInputEnabled = false;
 bool AudioFlinger::mTeeSinkOutputEnabled = false;
@@ -105,75 +114,38 @@
 // we define a minimum time during which a global effect is considered enabled.
 static const nsecs_t kMinGlobalEffectEnabletimeNs = seconds(7200);
 
-// ----------------------------------------------------------------------------
+Mutex gLock;
+wp<AudioFlinger> gAudioFlinger;
 
-const char *formatToString(audio_format_t format) {
-    switch (audio_get_main_format(format)) {
-    case AUDIO_FORMAT_PCM:
-        switch (format) {
-        case AUDIO_FORMAT_PCM_16_BIT: return "pcm16";
-        case AUDIO_FORMAT_PCM_8_BIT: return "pcm8";
-        case AUDIO_FORMAT_PCM_32_BIT: return "pcm32";
-        case AUDIO_FORMAT_PCM_8_24_BIT: return "pcm8.24";
-        case AUDIO_FORMAT_PCM_FLOAT: return "pcmfloat";
-        case AUDIO_FORMAT_PCM_24_BIT_PACKED: return "pcm24";
-        default:
-            break;
-        }
-        break;
-    case AUDIO_FORMAT_MP3: return "mp3";
-    case AUDIO_FORMAT_AMR_NB: return "amr-nb";
-    case AUDIO_FORMAT_AMR_WB: return "amr-wb";
-    case AUDIO_FORMAT_AAC: return "aac";
-    case AUDIO_FORMAT_HE_AAC_V1: return "he-aac-v1";
-    case AUDIO_FORMAT_HE_AAC_V2: return "he-aac-v2";
-    case AUDIO_FORMAT_VORBIS: return "vorbis";
-    case AUDIO_FORMAT_OPUS: return "opus";
-    case AUDIO_FORMAT_AC3: return "ac-3";
-    case AUDIO_FORMAT_E_AC3: return "e-ac-3";
-    case AUDIO_FORMAT_IEC61937: return "iec61937";
-    case AUDIO_FORMAT_DTS: return "dts";
-    case AUDIO_FORMAT_DTS_HD: return "dts-hd";
-    case AUDIO_FORMAT_DOLBY_TRUEHD: return "dolby-truehd";
-    default:
-        break;
+// Keep a strong reference to media.log service around forever.
+// The service is within our parent process so it can never die in a way that we could observe.
+// These two variables are const after initialization.
+static sp<IBinder> sMediaLogServiceAsBinder;
+static sp<IMediaLogService> sMediaLogService;
+
+static pthread_once_t sMediaLogOnce = PTHREAD_ONCE_INIT;
+
+static void sMediaLogInit()
+{
+    sMediaLogServiceAsBinder = defaultServiceManager()->getService(String16("media.log"));
+    if (sMediaLogServiceAsBinder != 0) {
+        sMediaLogService = interface_cast<IMediaLogService>(sMediaLogServiceAsBinder);
     }
-    return "unknown";
 }
 
-static int load_audio_interface(const char *if_name, audio_hw_device_t **dev)
-{
-    const hw_module_t *mod;
-    int rc;
+// ----------------------------------------------------------------------------
 
-    rc = hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID, if_name, &mod);
-    ALOGE_IF(rc, "%s couldn't load audio hw module %s.%s (%s)", __func__,
-                 AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc));
-    if (rc) {
-        goto out;
-    }
-    rc = audio_hw_device_open(mod, dev);
-    ALOGE_IF(rc, "%s couldn't open audio hw device in %s.%s (%s)", __func__,
-                 AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc));
-    if (rc) {
-        goto out;
-    }
-    if ((*dev)->common.version < AUDIO_DEVICE_API_VERSION_MIN) {
-        ALOGE("%s wrong audio hw device version %04x", __func__, (*dev)->common.version);
-        rc = BAD_VALUE;
-        goto out;
-    }
-    return 0;
-
-out:
-    *dev = NULL;
-    return rc;
+std::string formatToString(audio_format_t format) {
+    std::string result;
+    FormatConverter::toString(format, result);
+    return result;
 }
 
 // ----------------------------------------------------------------------------
 
 AudioFlinger::AudioFlinger()
     : BnAudioFlinger(),
+      mMediaLogNotifier(new AudioFlinger::MediaLogNotifier()),
       mPrimaryHardwareDev(NULL),
       mAudioHwDevs(NULL),
       mHardwareStatus(AUDIO_HW_IDLE),
@@ -198,6 +170,7 @@
     if (doLog) {
         mLogMemoryDealer = new MemoryDealer(kLogMemorySize, "LogWriters",
                 MemoryHeapBase::READ_ONLY);
+        (void) pthread_once(&sMediaLogOnce, sMediaLogInit);
     }
 
     // reset battery stats.
@@ -205,6 +178,11 @@
     // in bad state, reset the state upon service start.
     BatteryNotifier::getInstance().noteResetAudio();
 
+    mDevicesFactoryHal = DevicesFactoryHalInterface::create();
+    mEffectsFactoryHal = EffectsFactoryHalInterface::create();
+
+    mMediaLogNotifier->run("MediaLogNotifier");
+
 #ifdef TEE_SINK
     char value[PROPERTY_VALUE_MAX];
     (void) property_get("ro.debuggable", value, "0");
@@ -248,6 +226,8 @@
     mPatchPanel = new PatchPanel(this);
 
     mMode = AUDIO_MODE_NORMAL;
+
+    gAudioFlinger = this;
 }
 
 AudioFlinger::~AudioFlinger()
@@ -263,24 +243,98 @@
 
     for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
         // no mHardwareLock needed, as there are no other references to this
-        audio_hw_device_close(mAudioHwDevs.valueAt(i)->hwDevice());
         delete mAudioHwDevs.valueAt(i);
     }
 
     // Tell media.log service about any old writers that still need to be unregistered
-    if (mLogMemoryDealer != 0) {
-        sp<IBinder> binder = defaultServiceManager()->getService(String16("media.log"));
-        if (binder != 0) {
-            sp<IMediaLogService> mediaLogService(interface_cast<IMediaLogService>(binder));
-            for (size_t count = mUnregisteredWriters.size(); count > 0; count--) {
-                sp<IMemory> iMemory(mUnregisteredWriters.top()->getIMemory());
-                mUnregisteredWriters.pop();
-                mediaLogService->unregisterWriter(iMemory);
-            }
+    if (sMediaLogService != 0) {
+        for (size_t count = mUnregisteredWriters.size(); count > 0; count--) {
+            sp<IMemory> iMemory(mUnregisteredWriters.top()->getIMemory());
+            mUnregisteredWriters.pop();
+            sMediaLogService->unregisterWriter(iMemory);
         }
     }
 }
 
+//static
+__attribute__ ((visibility ("default")))
+status_t MmapStreamInterface::openMmapStream(MmapStreamInterface::stream_direction_t direction,
+                                             const audio_attributes_t *attr,
+                                             audio_config_base_t *config,
+                                             const MmapStreamInterface::Client& client,
+                                             audio_port_handle_t *deviceId,
+                                             const sp<MmapStreamCallback>& callback,
+                                             sp<MmapStreamInterface>& interface)
+{
+    sp<AudioFlinger> af;
+    {
+        Mutex::Autolock _l(gLock);
+        af = gAudioFlinger.promote();
+    }
+    status_t ret = NO_INIT;
+    if (af != 0) {
+        ret = af->openMmapStream(
+                direction, attr, config, client, deviceId, callback, interface);
+    }
+    return ret;
+}
+
+status_t AudioFlinger::openMmapStream(MmapStreamInterface::stream_direction_t direction,
+                                      const audio_attributes_t *attr,
+                                      audio_config_base_t *config,
+                                      const MmapStreamInterface::Client& client,
+                                      audio_port_handle_t *deviceId,
+                                      const sp<MmapStreamCallback>& callback,
+                                      sp<MmapStreamInterface>& interface)
+{
+    status_t ret = initCheck();
+    if (ret != NO_ERROR) {
+        return ret;
+    }
+
+    audio_session_t sessionId = (audio_session_t) newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
+    audio_stream_type_t streamType = AUDIO_STREAM_DEFAULT;
+    audio_io_handle_t io;
+    audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE;
+    if (direction == MmapStreamInterface::DIRECTION_OUTPUT) {
+        audio_config_t fullConfig = AUDIO_CONFIG_INITIALIZER;
+        fullConfig.sample_rate = config->sample_rate;
+        fullConfig.channel_mask = config->channel_mask;
+        fullConfig.format = config->format;
+        ret = AudioSystem::getOutputForAttr(attr, &io,
+                                            sessionId,
+                                            &streamType, client.clientUid,
+                                            &fullConfig,
+                                            (audio_output_flags_t)(AUDIO_OUTPUT_FLAG_MMAP_NOIRQ |
+                                                    AUDIO_OUTPUT_FLAG_DIRECT),
+                                            *deviceId, &portId);
+    } else {
+        ret = AudioSystem::getInputForAttr(attr, &io,
+                                              sessionId,
+                                              client.clientPid,
+                                              client.clientUid,
+                                              config,
+                                              AUDIO_INPUT_FLAG_MMAP_NOIRQ, *deviceId, &portId);
+    }
+    if (ret != NO_ERROR) {
+        return ret;
+    }
+
+    // at this stage, a MmapThread was created when openOutput() or openInput() was called by
+    // audio policy manager and we can retrieve it
+    sp<MmapThread> thread = mMmapThreads.valueFor(io);
+    if (thread != 0) {
+        interface = new MmapThreadHandle(thread);
+        thread->configure(attr, streamType, sessionId, callback, portId);
+    } else {
+        ret = NO_INIT;
+    }
+
+    ALOGV("%s done status %d portId %d", __FUNCTION__, ret, portId);
+
+    return ret;
+}
+
 static const char * const audio_interfaces[] = {
     AUDIO_HARDWARE_MODULE_ID_PRIMARY,
     AUDIO_HARDWARE_MODULE_ID_A2DP,
@@ -302,10 +356,12 @@
         // then try to find a module supporting the requested device.
         for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
             AudioHwDevice *audioHwDevice = mAudioHwDevs.valueAt(i);
-            audio_hw_device_t *dev = audioHwDevice->hwDevice();
-            if ((dev->get_supported_devices != NULL) &&
-                    (dev->get_supported_devices(dev) & devices) == devices)
+            sp<DeviceHalInterface> dev = audioHwDevice->hwDevice();
+            uint32_t supportedDevices;
+            if (dev->getSupportedDevices(&supportedDevices) == OK &&
+                    (supportedDevices & devices) == devices) {
                 return audioHwDevice;
+            }
         }
     } else {
         // check a match for the requested module handle
@@ -419,7 +475,12 @@
             write(fd, result.string(), result.size());
         }
 
-        EffectDumpEffects(fd);
+        if (mEffectsFactoryHal != 0) {
+            mEffectsFactoryHal->dumpEffects(fd);
+        } else {
+            String8 result(kNoEffectsFactory);
+            write(fd, result.string(), result.size());
+        }
 
         dumpClients(fd, args);
         if (clientLocked) {
@@ -438,6 +499,11 @@
             mRecordThreads.valueAt(i)->dump(fd, args);
         }
 
+        // dump mmap threads
+        for (size_t i = 0; i < mMmapThreads.size(); i++) {
+            mMmapThreads.valueAt(i)->dump(fd, args);
+        }
+
         // dump orphan effect chains
         if (mOrphanEffectChains.size() != 0) {
             write(fd, "  Orphan Effect Chains\n", strlen("  Orphan Effect Chains\n"));
@@ -447,8 +513,8 @@
         }
         // dump all hardware devs
         for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
-            audio_hw_device_t *dev = mAudioHwDevs.valueAt(i)->hwDevice();
-            dev->dump(dev, fd);
+            sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
+            dev->dump(fd);
         }
 
 #ifdef TEE_SINK
@@ -458,19 +524,18 @@
         }
 #endif
 
+        BUFLOG_RESET;
+
         if (locked) {
             mLock.unlock();
         }
 
         // append a copy of media.log here by forwarding fd to it, but don't attempt
         // to lookup the service if it's not running, as it will block for a second
-        if (mLogMemoryDealer != 0) {
-            sp<IBinder> binder = defaultServiceManager()->getService(String16("media.log"));
-            if (binder != 0) {
-                dprintf(fd, "\nmedia.log:\n");
-                Vector<String16> args;
-                binder->dump(fd, args);
-            }
+        if (sMediaLogServiceAsBinder != 0) {
+            dprintf(fd, "\nmedia.log:\n");
+            Vector<String16> args;
+            sMediaLogServiceAsBinder->dump(fd, args);
         }
 
         // check for optional arguments
@@ -515,16 +580,11 @@
 
 sp<NBLog::Writer> AudioFlinger::newWriter_l(size_t size, const char *name)
 {
-    // If there is no memory allocated for logs, return a dummy writer that does nothing
-    if (mLogMemoryDealer == 0) {
+    // If there is no memory allocated for logs, return a dummy writer that does nothing.
+    // Similarly if we can't contact the media.log service, also return a dummy writer.
+    if (mLogMemoryDealer == 0 || sMediaLogService == 0) {
         return new NBLog::Writer();
     }
-    sp<IBinder> binder = defaultServiceManager()->getService(String16("media.log"));
-    // Similarly if we can't contact the media.log service, also return a dummy writer
-    if (binder == 0) {
-        return new NBLog::Writer();
-    }
-    sp<IMediaLogService> mediaLogService(interface_cast<IMediaLogService>(binder));
     sp<IMemory> shared = mLogMemoryDealer->allocate(NBLog::Timeline::sharedSize(size));
     // If allocation fails, consult the vector of previously unregistered writers
     // and garbage-collect one or more them until an allocation succeeds
@@ -535,7 +595,7 @@
                 // Pick the oldest stale writer to garbage-collect
                 sp<IMemory> iMemory(mUnregisteredWriters[0]->getIMemory());
                 mUnregisteredWriters.removeAt(0);
-                mediaLogService->unregisterWriter(iMemory);
+                sMediaLogService->unregisterWriter(iMemory);
                 // Now the media.log remote reference to IMemory is gone.  When our last local
                 // reference to IMemory also drops to zero at end of this block,
                 // the IMemory destructor will deallocate the region from mLogMemoryDealer.
@@ -551,8 +611,11 @@
         return new NBLog::Writer();
     }
 success:
-    mediaLogService->registerWriter(shared, size, name);
-    return new NBLog::Writer(size, shared);
+    NBLog::Shared *sharedRawPtr = (NBLog::Shared *) shared->pointer();
+    new((void *) sharedRawPtr) NBLog::Shared(); // placement new here, but the corresponding
+                                                // explicit destructor not needed since it is POD
+    sMediaLogService->registerWriter(shared, size, name);
+    return new NBLog::Writer(shared, size);
 }
 
 void AudioFlinger::unregisterWriter(const sp<NBLog::Writer>& writer)
@@ -586,7 +649,8 @@
         pid_t tid,
         audio_session_t *sessionId,
         int clientUid,
-        status_t *status)
+        status_t *status,
+        audio_port_handle_t portId)
 {
     sp<PlaybackThread::Track> track;
     sp<TrackHandle> trackHandle;
@@ -679,7 +743,8 @@
         ALOGV("createTrack() lSessionId: %d", lSessionId);
 
         track = thread->createTrack_l(client, streamType, sampleRate, format,
-                channelMask, frameCount, sharedBuffer, lSessionId, flags, tid, clientUid, &lStatus);
+                channelMask, frameCount, sharedBuffer, lSessionId, flags, tid,
+                clientUid, &lStatus, portId);
         LOG_ALWAYS_FATAL_IF((lStatus == NO_ERROR) && (track == 0));
         // we don't abort yet if lStatus != NO_ERROR; there is still work to be done regardless
 
@@ -810,7 +875,7 @@
 
         mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME;
         if (dev->canSetMasterVolume()) {
-            dev->hwDevice()->set_master_volume(dev->hwDevice(), value);
+            dev->hwDevice()->setMasterVolume(value);
         }
         mHardwareStatus = AUDIO_HW_IDLE;
     }
@@ -847,9 +912,9 @@
 
     { // scope for the lock
         AutoMutex lock(mHardwareLock);
-        audio_hw_device_t *dev = mPrimaryHardwareDev->hwDevice();
+        sp<DeviceHalInterface> dev = mPrimaryHardwareDev->hwDevice();
         mHardwareStatus = AUDIO_HW_SET_MODE;
-        ret = dev->set_mode(dev, mode);
+        ret = dev->setMode(mode);
         mHardwareStatus = AUDIO_HW_IDLE;
     }
 
@@ -878,8 +943,8 @@
     AutoMutex lock(mHardwareLock);
     mHardwareStatus = AUDIO_HW_SET_MIC_MUTE;
     for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
-        audio_hw_device_t *dev = mAudioHwDevs.valueAt(i)->hwDevice();
-        status_t result = dev->set_mic_mute(dev, state);
+        sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
+        status_t result = dev->setMicMute(state);
         if (result != NO_ERROR) {
             ret = result;
         }
@@ -899,8 +964,8 @@
     AutoMutex lock(mHardwareLock);
     mHardwareStatus = AUDIO_HW_GET_MIC_MUTE;
     for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
-        audio_hw_device_t *dev = mAudioHwDevs.valueAt(i)->hwDevice();
-        status_t result = dev->get_mic_mute(dev, &state);
+        sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
+        status_t result = dev->getMicMute(&state);
         if (result == NO_ERROR) {
             mute = mute && state;
         }
@@ -932,7 +997,7 @@
 
         mHardwareStatus = AUDIO_HW_SET_MASTER_MUTE;
         if (dev->canSetMasterMute()) {
-            dev->hwDevice()->set_master_mute(dev->hwDevice(), muted);
+            dev->hwDevice()->setMasterMute(muted);
         }
         mHardwareStatus = AUDIO_HW_IDLE;
     }
@@ -941,11 +1006,9 @@
     // assigned to HALs which do not have master mute support will apply master
     // mute during the mix operation.  Threads with HALs which do support master
     // mute will simply ignore the setting.
-    for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
-        if (mPlaybackThreads.valueAt(i)->isDuplicating()) {
-            continue;
-        }
-        mPlaybackThreads.valueAt(i)->setMasterMute(muted);
+    Vector<VolumeInterface *> volumeInterfaces = getAllVolumeInterfaces_l();
+    for (size_t i = 0; i < volumeInterfaces.size(); i++) {
+        volumeInterfaces[i]->setMasterMute(muted);
     }
 
     return NO_ERROR;
@@ -976,12 +1039,12 @@
 status_t AudioFlinger::checkStreamType(audio_stream_type_t stream) const
 {
     if (uint32_t(stream) >= AUDIO_STREAM_CNT) {
-        ALOGW("setStreamVolume() invalid stream %d", stream);
+        ALOGW("checkStreamType() invalid stream %d", stream);
         return BAD_VALUE;
     }
     pid_t caller = IPCThreadState::self()->getCallingPid();
     if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT && caller != getpid_cached) {
-        ALOGW("setStreamVolume() pid %d cannot use internal stream type %d", caller, stream);
+        ALOGW("checkStreamType() pid %d cannot use internal stream type %d", caller, stream);
         return PERMISSION_DENIED;
     }
 
@@ -1003,22 +1066,22 @@
     ALOG_ASSERT(stream != AUDIO_STREAM_PATCH, "attempt to change AUDIO_STREAM_PATCH volume");
 
     AutoMutex lock(mLock);
-    PlaybackThread *thread = NULL;
+    Vector<VolumeInterface *> volumeInterfaces;
     if (output != AUDIO_IO_HANDLE_NONE) {
-        thread = checkPlaybackThread_l(output);
-        if (thread == NULL) {
+        VolumeInterface *volumeInterface = getVolumeInterface_l(output);
+        if (volumeInterface == NULL) {
             return BAD_VALUE;
         }
+        volumeInterfaces.add(volumeInterface);
     }
 
     mStreamTypes[stream].volume = value;
 
-    if (thread == NULL) {
-        for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
-            mPlaybackThreads.valueAt(i)->setStreamVolume(stream, value);
-        }
-    } else {
-        thread->setStreamVolume(stream, value);
+    if (volumeInterfaces.size() == 0) {
+        volumeInterfaces = getAllVolumeInterfaces_l();
+    }
+    for (size_t i = 0; i < volumeInterfaces.size(); i++) {
+        volumeInterfaces[i]->setStreamVolume(stream, value);
     }
 
     return NO_ERROR;
@@ -1044,8 +1107,10 @@
 
     AutoMutex lock(mLock);
     mStreamTypes[stream].mute = muted;
-    for (size_t i = 0; i < mPlaybackThreads.size(); i++)
-        mPlaybackThreads.valueAt(i)->setStreamMute(stream, muted);
+    Vector<VolumeInterface *> volumeInterfaces = getAllVolumeInterfaces_l();
+    for (size_t i = 0; i < volumeInterfaces.size(); i++) {
+        volumeInterfaces[i]->setStreamMute(stream, muted);
+    }
 
     return NO_ERROR;
 }
@@ -1060,11 +1125,12 @@
     AutoMutex lock(mLock);
     float volume;
     if (output != AUDIO_IO_HANDLE_NONE) {
-        PlaybackThread *thread = checkPlaybackThread_l(output);
-        if (thread == NULL) {
-            return 0.0f;
+        VolumeInterface *volumeInterface = getVolumeInterface_l(output);
+        if (volumeInterface != NULL) {
+            volume = volumeInterface->streamVolume(stream);
+        } else {
+            volume = 0.0f;
         }
-        volume = thread->streamVolume(stream);
     } else {
         volume = streamVolume_l(stream);
     }
@@ -1110,8 +1176,8 @@
             AutoMutex lock(mHardwareLock);
             mHardwareStatus = AUDIO_HW_SET_PARAMETER;
             for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
-                audio_hw_device_t *dev = mAudioHwDevs.valueAt(i)->hwDevice();
-                status_t result = dev->set_parameters(dev, keyValuePairs.string());
+                sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
+                status_t result = dev->setParameters(keyValuePairs);
                 // return success if at least one audio device accepts the parameters as not all
                 // HALs are requested to support all parameters. If no audio device supports the
                 // requested parameters, the last error is reported.
@@ -1124,8 +1190,8 @@
         // disable AEC and NS if the device is a BT SCO headset supporting those pre processings
         AudioParameter param = AudioParameter(keyValuePairs);
         String8 value;
-        if (param.get(String8(AUDIO_PARAMETER_KEY_BT_NREC), value) == NO_ERROR) {
-            bool btNrecIsOff = (value == AUDIO_PARAMETER_VALUE_OFF);
+        if (param.get(String8(AudioParameter::keyBtNrec), value) == NO_ERROR) {
+            bool btNrecIsOff = (value == AudioParameter::valueOff);
             if (mBtNrecIsOff != btNrecIsOff) {
                 for (size_t i = 0; i < mRecordThreads.size(); i++) {
                     sp<RecordThread> thread = mRecordThreads.valueAt(i);
@@ -1149,7 +1215,7 @@
         }
         String8 screenState;
         if (param.get(String8(AudioParameter::keyScreenState), screenState) == NO_ERROR) {
-            bool isOff = screenState == "off";
+            bool isOff = (screenState == AudioParameter::valueOff);
             if (isOff != (AudioFlinger::mScreenState & 1)) {
                 AudioFlinger::mScreenState = ((AudioFlinger::mScreenState & ~1) + 2) | isOff;
             }
@@ -1165,6 +1231,9 @@
         thread = checkPlaybackThread_l(ioHandle);
         if (thread == 0) {
             thread = checkRecordThread_l(ioHandle);
+            if (thread == 0) {
+                thread = checkMmapThread_l(ioHandle);
+            }
         } else if (thread == primaryPlaybackThread_l()) {
             // indicate output device change to all input threads for pre processing
             AudioParameter param = AudioParameter(keyValuePairs);
@@ -1192,29 +1261,31 @@
         String8 out_s8;
 
         for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
-            char *s;
+            String8 s;
+            status_t result;
             {
             AutoMutex lock(mHardwareLock);
             mHardwareStatus = AUDIO_HW_GET_PARAMETER;
-            audio_hw_device_t *dev = mAudioHwDevs.valueAt(i)->hwDevice();
-            s = dev->get_parameters(dev, keys.string());
+            sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
+            result = dev->getParameters(keys, &s);
             mHardwareStatus = AUDIO_HW_IDLE;
             }
-            out_s8 += String8(s ? s : "");
-            free(s);
+            if (result == OK) out_s8 += s;
         }
         return out_s8;
     }
 
-    PlaybackThread *playbackThread = checkPlaybackThread_l(ioHandle);
-    if (playbackThread != NULL) {
-        return playbackThread->getParameters(keys);
+    ThreadBase *thread = (ThreadBase *)checkPlaybackThread_l(ioHandle);
+    if (thread == NULL) {
+        thread = (ThreadBase *)checkRecordThread_l(ioHandle);
+        if (thread == NULL) {
+            thread = (ThreadBase *)checkMmapThread_l(ioHandle);
+            if (thread == NULL) {
+                String8("");
+            }
+        }
     }
-    RecordThread *recordThread = checkRecordThread_l(ioHandle);
-    if (recordThread != NULL) {
-        return recordThread->getParameters(keys);
-    }
-    return String8("");
+    return thread->getParameters(keys);
 }
 
 size_t AudioFlinger::getInputBufferSize(uint32_t sampleRate, audio_format_t format,
@@ -1238,14 +1309,14 @@
     proposed.channel_mask = channelMask;
     proposed.format = format;
 
-    audio_hw_device_t *dev = mPrimaryHardwareDev->hwDevice();
+    sp<DeviceHalInterface> dev = mPrimaryHardwareDev->hwDevice();
     size_t frames;
     for (;;) {
         // Note: config is currently a const parameter for get_input_buffer_size()
         // but we use a copy from proposed in case config changes from the call.
         config = proposed;
-        frames = dev->get_input_buffer_size(dev, &config);
-        if (frames != 0) {
+        status_t result = dev->getInputBufferSize(&config, &frames);
+        if (result == OK && frames != 0) {
             break; // hal success, config is the result
         }
         // change one parameter of the configuration each iteration to a more "common" value
@@ -1292,9 +1363,9 @@
     }
 
     AutoMutex lock(mHardwareLock);
-    audio_hw_device_t *dev = mPrimaryHardwareDev->hwDevice();
+    sp<DeviceHalInterface> dev = mPrimaryHardwareDev->hwDevice();
     mHardwareStatus = AUDIO_HW_SET_VOICE_VOLUME;
-    ret = dev->set_voice_volume(dev, value);
+    ret = dev->setVoiceVolume(value);
     mHardwareStatus = AUDIO_HW_IDLE;
 
     return ret;
@@ -1423,11 +1494,15 @@
         mAudioFlinger(audioFlinger),
         mPid(pid)
 {
-    size_t heapSize = kClientSharedHeapSizeBytes;
-    // Increase heap size on non low ram devices to limit risk of reconnection failure for
-    // invalidated tracks
-    if (!audioFlinger->isLowRamDevice()) {
-        heapSize *= kClientSharedHeapSizeMultiplier;
+    size_t heapSize = property_get_int32("ro.af.client_heap_size_kbyte", 0);
+    heapSize *= 1024;
+    if (!heapSize) {
+        heapSize = kClientSharedHeapSizeBytes;
+        // Increase heap size on non low ram devices to limit risk of reconnection failure for
+        // invalidated tracks
+        if (!audioFlinger->isLowRamDevice()) {
+            heapSize *= kClientSharedHeapSizeMultiplier;
+        }
     }
     mMemoryDealer = new MemoryDealer(heapSize, "AudioFlinger::Client");
 }
@@ -1462,6 +1537,41 @@
     mAudioFlinger->removeNotificationClient(mPid);
 }
 
+// ----------------------------------------------------------------------------
+AudioFlinger::MediaLogNotifier::MediaLogNotifier()
+    : mPendingRequests(false) {}
+
+
+void AudioFlinger::MediaLogNotifier::requestMerge() {
+    AutoMutex _l(mMutex);
+    mPendingRequests = true;
+    mCond.signal();
+}
+
+bool AudioFlinger::MediaLogNotifier::threadLoop() {
+    // Should already have been checked, but just in case
+    if (sMediaLogService == 0) {
+        return false;
+    }
+    // Wait until there are pending requests
+    {
+        AutoMutex _l(mMutex);
+        mPendingRequests = false; // to ignore past requests
+        while (!mPendingRequests) {
+            mCond.wait(mMutex);
+            // TODO may also need an exitPending check
+        }
+        mPendingRequests = false;
+    }
+    // Execute the actual MediaLogService binder call and ignore extra requests for a while
+    sMediaLogService->requestMergeWakeup();
+    usleep(kPostTriggerSleepPeriod);
+    return true;
+}
+
+void AudioFlinger::requestLogMerge() {
+    mMediaLogNotifier->requestMerge();
+}
 
 // ----------------------------------------------------------------------------
 
@@ -1480,7 +1590,8 @@
         size_t *notificationFrames,
         sp<IMemory>& cblk,
         sp<IMemory>& buffers,
-        status_t *status)
+        status_t *status,
+        audio_port_handle_t portId)
 {
     sp<RecordThread::RecordTrack> recordTrack;
     sp<RecordHandle> recordHandle;
@@ -1564,7 +1675,7 @@
 
         recordTrack = thread->createRecordTrack_l(client, sampleRate, format, channelMask,
                                                   frameCount, lSessionId, notificationFrames,
-                                                  clientUid, flags, tid, &lStatus);
+                                                  clientUid, flags, tid, &lStatus, portId);
         LOG_ALWAYS_FATAL_IF((lStatus == NO_ERROR) && (recordTrack == 0));
 
         if (lStatus == NO_ERROR) {
@@ -1628,16 +1739,16 @@
         }
     }
 
-    audio_hw_device_t *dev;
+    sp<DeviceHalInterface> dev;
 
-    int rc = load_audio_interface(name, &dev);
+    int rc = mDevicesFactoryHal->openDevice(name, &dev);
     if (rc) {
         ALOGE("loadHwModule() error %d loading module %s", rc, name);
         return AUDIO_MODULE_HANDLE_NONE;
     }
 
     mHardwareStatus = AUDIO_HW_INIT;
-    rc = dev->init_check(dev);
+    rc = dev->initCheck();
     mHardwareStatus = AUDIO_HW_IDLE;
     if (rc) {
         ALOGE("loadHwModule() init check error %d for module %s", rc, name);
@@ -1655,32 +1766,26 @@
 
         if (0 == mAudioHwDevs.size()) {
             mHardwareStatus = AUDIO_HW_GET_MASTER_VOLUME;
-            if (NULL != dev->get_master_volume) {
-                float mv;
-                if (OK == dev->get_master_volume(dev, &mv)) {
-                    mMasterVolume = mv;
-                }
+            float mv;
+            if (OK == dev->getMasterVolume(&mv)) {
+                mMasterVolume = mv;
             }
 
             mHardwareStatus = AUDIO_HW_GET_MASTER_MUTE;
-            if (NULL != dev->get_master_mute) {
-                bool mm;
-                if (OK == dev->get_master_mute(dev, &mm)) {
-                    mMasterMute = mm;
-                }
+            bool mm;
+            if (OK == dev->getMasterMute(&mm)) {
+                mMasterMute = mm;
             }
         }
 
         mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME;
-        if ((NULL != dev->set_master_volume) &&
-            (OK == dev->set_master_volume(dev, mMasterVolume))) {
+        if (OK == dev->setMasterVolume(mMasterVolume)) {
             flags = static_cast<AudioHwDevice::Flags>(flags |
                     AudioHwDevice::AHWD_CAN_SET_MASTER_VOLUME);
         }
 
         mHardwareStatus = AUDIO_HW_SET_MASTER_MUTE;
-        if ((NULL != dev->set_master_mute) &&
-            (OK == dev->set_master_mute(dev, mMasterMute))) {
+        if (OK == dev->setMasterMute(mMasterMute)) {
             flags = static_cast<AudioHwDevice::Flags>(flags |
                     AudioHwDevice::AHWD_CAN_SET_MASTER_MUTE);
         }
@@ -1691,8 +1796,7 @@
     audio_module_handle_t handle = (audio_module_handle_t) nextUniqueId(AUDIO_UNIQUE_ID_USE_MODULE);
     mAudioHwDevs.add(handle, new AudioHwDevice(handle, name, dev, flags));
 
-    ALOGI("loadHwModule() Loaded %s audio interface from %s (%s) handle %d",
-          name, dev->common.module->name, dev->common.module->id, handle);
+    ALOGI("loadHwModule() Loaded %s audio interface, handle %d", name, handle);
 
     return handle;
 
@@ -1742,16 +1846,18 @@
         return mHwAvSyncIds.valueAt(index);
     }
 
-    audio_hw_device_t *dev = mPrimaryHardwareDev->hwDevice();
+    sp<DeviceHalInterface> dev = mPrimaryHardwareDev->hwDevice();
     if (dev == NULL) {
         return AUDIO_HW_SYNC_INVALID;
     }
-    char *reply = dev->get_parameters(dev, AUDIO_PARAMETER_HW_AV_SYNC);
-    AudioParameter param = AudioParameter(String8(reply));
-    free(reply);
+    String8 reply;
+    AudioParameter param;
+    if (dev->getParameters(String8(AudioParameter::keyHwAvSync), &reply) == OK) {
+        param = AudioParameter(reply);
+    }
 
     int value;
-    if (param.getInt(String8(AUDIO_PARAMETER_HW_AV_SYNC), value) != NO_ERROR) {
+    if (param.getInt(String8(AudioParameter::keyHwAvSync), value) != NO_ERROR) {
         ALOGW("getAudioHwSyncForSession error getting sync for session %d", sessionId);
         return AUDIO_HW_SYNC_INVALID;
     }
@@ -1773,7 +1879,7 @@
         uint32_t sessions = thread->hasAudioSession(sessionId);
         if (sessions & ThreadBase::TRACK_SESSION) {
             AudioParameter param = AudioParameter();
-            param.addInt(String8(AUDIO_PARAMETER_STREAM_HW_AV_SYNC), value);
+            param.addInt(String8(AudioParameter::keyStreamHwAvSync), value);
             thread->setParameters(param.toString());
             break;
         }
@@ -1811,7 +1917,7 @@
         audio_hw_sync_t syncId = mHwAvSyncIds.valueAt(index);
         ALOGV("setAudioHwSyncForSession_l found ID %d for session %d", syncId, sessionId);
         AudioParameter param = AudioParameter();
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_HW_AV_SYNC), syncId);
+        param.addInt(String8(AudioParameter::keyStreamHwAvSync), syncId);
         thread->setParameters(param.toString());
     }
 }
@@ -1820,7 +1926,7 @@
 // ----------------------------------------------------------------------------
 
 
-sp<AudioFlinger::PlaybackThread> AudioFlinger::openOutput_l(audio_module_handle_t module,
+sp<AudioFlinger::ThreadBase> AudioFlinger::openOutput_l(audio_module_handle_t module,
                                                             audio_io_handle_t *output,
                                                             audio_config_t *config,
                                                             audio_devices_t devices,
@@ -1876,22 +1982,34 @@
     mHardwareStatus = AUDIO_HW_IDLE;
 
     if (status == NO_ERROR) {
-
-        PlaybackThread *thread;
-        if (flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) {
-            thread = new OffloadThread(this, outputStream, *output, devices, mSystemReady);
-            ALOGV("openOutput_l() created offload output: ID %d thread %p", *output, thread);
-        } else if ((flags & AUDIO_OUTPUT_FLAG_DIRECT)
-                || !isValidPcmSinkFormat(config->format)
-                || !isValidPcmSinkChannelMask(config->channel_mask)) {
-            thread = new DirectOutputThread(this, outputStream, *output, devices, mSystemReady);
-            ALOGV("openOutput_l() created direct output: ID %d thread %p", *output, thread);
+        if (flags & AUDIO_OUTPUT_FLAG_MMAP_NOIRQ) {
+            sp<MmapPlaybackThread> thread =
+                    new MmapPlaybackThread(this, *output, outHwDev, outputStream,
+                                          devices, AUDIO_DEVICE_NONE, mSystemReady);
+            mMmapThreads.add(*output, thread);
+            ALOGV("openOutput_l() created mmap playback thread: ID %d thread %p",
+                  *output, thread.get());
+            return thread;
         } else {
-            thread = new MixerThread(this, outputStream, *output, devices, mSystemReady);
-            ALOGV("openOutput_l() created mixer output: ID %d thread %p", *output, thread);
+            sp<PlaybackThread> thread;
+            if (flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) {
+                thread = new OffloadThread(this, outputStream, *output, devices, mSystemReady);
+                ALOGV("openOutput_l() created offload output: ID %d thread %p",
+                      *output, thread.get());
+            } else if ((flags & AUDIO_OUTPUT_FLAG_DIRECT)
+                    || !isValidPcmSinkFormat(config->format)
+                    || !isValidPcmSinkChannelMask(config->channel_mask)) {
+                thread = new DirectOutputThread(this, outputStream, *output, devices, mSystemReady);
+                ALOGV("openOutput_l() created direct output: ID %d thread %p",
+                      *output, thread.get());
+            } else {
+                thread = new MixerThread(this, outputStream, *output, devices, mSystemReady);
+                ALOGV("openOutput_l() created mixer output: ID %d thread %p",
+                      *output, thread.get());
+            }
+            mPlaybackThreads.add(*output, thread);
+            return thread;
         }
-        mPlaybackThreads.add(*output, thread);
-        return thread;
     }
 
     return 0;
@@ -1905,36 +2023,43 @@
                                   uint32_t *latencyMs,
                                   audio_output_flags_t flags)
 {
-    ALOGI("openOutput(), module %d Device %x, SamplingRate %d, Format %#08x, Channels %x, flags %x",
-              module,
+    ALOGI("openOutput() this %p, module %d Device %x, SamplingRate %d, Format %#08x, Channels %x, "
+              "flags %x",
+              this, module,
               (devices != NULL) ? *devices : 0,
               config->sample_rate,
               config->format,
               config->channel_mask,
               flags);
 
-    if (*devices == AUDIO_DEVICE_NONE) {
+    if (devices == NULL || *devices == AUDIO_DEVICE_NONE) {
         return BAD_VALUE;
     }
 
     Mutex::Autolock _l(mLock);
 
-    sp<PlaybackThread> thread = openOutput_l(module, output, config, *devices, address, flags);
+    sp<ThreadBase> thread = openOutput_l(module, output, config, *devices, address, flags);
     if (thread != 0) {
-        *latencyMs = thread->latency();
+        if ((flags & AUDIO_OUTPUT_FLAG_MMAP_NOIRQ) == 0) {
+            PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
+            *latencyMs = playbackThread->latency();
 
-        // notify client processes of the new output creation
-        thread->ioConfigChanged(AUDIO_OUTPUT_OPENED);
+            // notify client processes of the new output creation
+            playbackThread->ioConfigChanged(AUDIO_OUTPUT_OPENED);
 
-        // the first primary output opened designates the primary hw device
-        if ((mPrimaryHardwareDev == NULL) && (flags & AUDIO_OUTPUT_FLAG_PRIMARY)) {
-            ALOGI("Using module %d has the primary audio interface", module);
-            mPrimaryHardwareDev = thread->getOutput()->audioHwDev;
+            // the first primary output opened designates the primary hw device
+            if ((mPrimaryHardwareDev == NULL) && (flags & AUDIO_OUTPUT_FLAG_PRIMARY)) {
+                ALOGI("Using module %d as the primary audio interface", module);
+                mPrimaryHardwareDev = playbackThread->getOutput()->audioHwDev;
 
-            AutoMutex lock(mHardwareLock);
-            mHardwareStatus = AUDIO_HW_SET_MODE;
-            mPrimaryHardwareDev->hwDevice()->set_mode(mPrimaryHardwareDev->hwDevice(), mMode);
-            mHardwareStatus = AUDIO_HW_IDLE;
+                AutoMutex lock(mHardwareLock);
+                mHardwareStatus = AUDIO_HW_SET_MODE;
+                mPrimaryHardwareDev->hwDevice()->setMode(mMode);
+                mHardwareStatus = AUDIO_HW_IDLE;
+            }
+        } else {
+            MmapThread *mmapThread = (MmapThread *)thread.get();
+            mmapThread->ioConfigChanged(AUDIO_OUTPUT_OPENED);
         }
         return NO_ERROR;
     }
@@ -1973,67 +2098,80 @@
 {
     // keep strong reference on the playback thread so that
     // it is not destroyed while exit() is executed
-    sp<PlaybackThread> thread;
+    sp<PlaybackThread> playbackThread;
+    sp<MmapPlaybackThread> mmapThread;
     {
         Mutex::Autolock _l(mLock);
-        thread = checkPlaybackThread_l(output);
-        if (thread == NULL) {
-            return BAD_VALUE;
-        }
+        playbackThread = checkPlaybackThread_l(output);
+        if (playbackThread != NULL) {
+            ALOGV("closeOutput() %d", output);
 
-        ALOGV("closeOutput() %d", output);
-
-        if (thread->type() == ThreadBase::MIXER) {
-            for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
-                if (mPlaybackThreads.valueAt(i)->isDuplicating()) {
-                    DuplicatingThread *dupThread =
-                            (DuplicatingThread *)mPlaybackThreads.valueAt(i).get();
-                    dupThread->removeOutputTrack((MixerThread *)thread.get());
+            if (playbackThread->type() == ThreadBase::MIXER) {
+                for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
+                    if (mPlaybackThreads.valueAt(i)->isDuplicating()) {
+                        DuplicatingThread *dupThread =
+                                (DuplicatingThread *)mPlaybackThreads.valueAt(i).get();
+                        dupThread->removeOutputTrack((MixerThread *)playbackThread.get());
+                    }
                 }
             }
-        }
 
 
-        mPlaybackThreads.removeItem(output);
-        // save all effects to the default thread
-        if (mPlaybackThreads.size()) {
-            PlaybackThread *dstThread = checkPlaybackThread_l(mPlaybackThreads.keyAt(0));
-            if (dstThread != NULL) {
-                // audioflinger lock is held here so the acquisition order of thread locks does not
-                // matter
-                Mutex::Autolock _dl(dstThread->mLock);
-                Mutex::Autolock _sl(thread->mLock);
-                Vector< sp<EffectChain> > effectChains = thread->getEffectChains_l();
-                for (size_t i = 0; i < effectChains.size(); i ++) {
-                    moveEffectChain_l(effectChains[i]->sessionId(), thread.get(), dstThread, true);
+            mPlaybackThreads.removeItem(output);
+            // save all effects to the default thread
+            if (mPlaybackThreads.size()) {
+                PlaybackThread *dstThread = checkPlaybackThread_l(mPlaybackThreads.keyAt(0));
+                if (dstThread != NULL) {
+                    // audioflinger lock is held so order of thread lock acquisition doesn't matter
+                    Mutex::Autolock _dl(dstThread->mLock);
+                    Mutex::Autolock _sl(playbackThread->mLock);
+                    Vector< sp<EffectChain> > effectChains = playbackThread->getEffectChains_l();
+                    for (size_t i = 0; i < effectChains.size(); i ++) {
+                        moveEffectChain_l(effectChains[i]->sessionId(), playbackThread.get(),
+                                dstThread, true);
+                    }
                 }
             }
+        } else {
+            mmapThread = (MmapPlaybackThread *)checkMmapThread_l(output);
+            if (mmapThread == 0) {
+                return BAD_VALUE;
+            }
+            mMmapThreads.removeItem(output);
+            ALOGD("closing mmapThread %p", mmapThread.get());
         }
         const sp<AudioIoDescriptor> ioDesc = new AudioIoDescriptor();
         ioDesc->mIoHandle = output;
         ioConfigChanged(AUDIO_OUTPUT_CLOSED, ioDesc);
     }
-    thread->exit();
     // The thread entity (active unit of execution) is no longer running here,
     // but the ThreadBase container still exists.
 
-    if (!thread->isDuplicating()) {
-        closeOutputFinish(thread);
+    if (playbackThread != 0) {
+        playbackThread->exit();
+        if (!playbackThread->isDuplicating()) {
+            closeOutputFinish(playbackThread);
+        }
+    } else if (mmapThread != 0) {
+        ALOGD("mmapThread exit()");
+        mmapThread->exit();
+        AudioStreamOut *out = mmapThread->clearOutput();
+        ALOG_ASSERT(out != NULL, "out shouldn't be NULL");
+        // from now on thread->mOutput is NULL
+        delete out;
     }
-
     return NO_ERROR;
 }
 
-void AudioFlinger::closeOutputFinish(sp<PlaybackThread> thread)
+void AudioFlinger::closeOutputFinish(const sp<PlaybackThread>& thread)
 {
     AudioStreamOut *out = thread->clearOutput();
     ALOG_ASSERT(out != NULL, "out shouldn't be NULL");
     // from now on thread->mOutput is NULL
-    out->hwDev()->close_output_stream(out->hwDev(), out->stream);
     delete out;
 }
 
-void AudioFlinger::closeOutputInternal_l(sp<PlaybackThread> thread)
+void AudioFlinger::closeOutputInternal_l(const sp<PlaybackThread>& thread)
 {
     mPlaybackThreads.removeItem(thread->mId);
     thread->exit();
@@ -2085,7 +2223,7 @@
         return BAD_VALUE;
     }
 
-    sp<RecordThread> thread = openInput_l(module, input, config, *devices, address, source, flags);
+    sp<ThreadBase> thread = openInput_l(module, input, config, *devices, address, source, flags);
 
     if (thread != 0) {
         // notify client processes of the new input creation
@@ -2095,7 +2233,7 @@
     return NO_INIT;
 }
 
-sp<AudioFlinger::RecordThread> AudioFlinger::openInput_l(audio_module_handle_t module,
+sp<AudioFlinger::ThreadBase> AudioFlinger::openInput_l(audio_module_handle_t module,
                                                          audio_io_handle_t *input,
                                                          audio_config_t *config,
                                                          audio_devices_t devices,
@@ -2124,13 +2262,14 @@
     }
 
     audio_config_t halconfig = *config;
-    audio_hw_device_t *inHwHal = inHwDev->hwDevice();
-    audio_stream_in_t *inStream = NULL;
-    status_t status = inHwHal->open_input_stream(inHwHal, *input, devices, &halconfig,
-                                        &inStream, flags, address.string(), source);
-    ALOGV("openInput_l() openInputStream returned input %p, SamplingRate %d"
+    sp<DeviceHalInterface> inHwHal = inHwDev->hwDevice();
+    sp<StreamInHalInterface> inStream;
+    status_t status = inHwHal->openInputStream(
+            *input, devices, &halconfig, flags, address.string(), source, &inStream);
+    ALOGV("openInput_l() openInputStream returned input %p, devices %x, SamplingRate %d"
            ", Format %#x, Channels %x, flags %#x, status %d addr %s",
-            inStream,
+            inStream.get(),
+            devices,
             halconfig.sample_rate,
             halconfig.format,
             halconfig.channel_mask,
@@ -2147,81 +2286,90 @@
         (audio_channel_count_from_in_mask(config->channel_mask) <= FCC_8)) {
         // FIXME describe the change proposed by HAL (save old values so we can log them here)
         ALOGV("openInput_l() reopening with proposed sampling rate and channel mask");
-        inStream = NULL;
-        status = inHwHal->open_input_stream(inHwHal, *input, devices, &halconfig,
-                                            &inStream, flags, address.string(), source);
+        inStream.clear();
+        status = inHwHal->openInputStream(
+                *input, devices, &halconfig, flags, address.string(), source, &inStream);
         // FIXME log this new status; HAL should not propose any further changes
     }
 
-    if (status == NO_ERROR && inStream != NULL) {
-
-#ifdef TEE_SINK
-        // Try to re-use most recently used Pipe to archive a copy of input for dumpsys,
-        // or (re-)create if current Pipe is idle and does not match the new format
-        sp<NBAIO_Sink> teeSink;
-        enum {
-            TEE_SINK_NO,    // don't copy input
-            TEE_SINK_NEW,   // copy input using a new pipe
-            TEE_SINK_OLD,   // copy input using an existing pipe
-        } kind;
-        NBAIO_Format format = Format_from_SR_C(halconfig.sample_rate,
-                audio_channel_count_from_in_mask(halconfig.channel_mask), halconfig.format);
-        if (!mTeeSinkInputEnabled) {
-            kind = TEE_SINK_NO;
-        } else if (!Format_isValid(format)) {
-            kind = TEE_SINK_NO;
-        } else if (mRecordTeeSink == 0) {
-            kind = TEE_SINK_NEW;
-        } else if (mRecordTeeSink->getStrongCount() != 1) {
-            kind = TEE_SINK_NO;
-        } else if (Format_isEqual(format, mRecordTeeSink->format())) {
-            kind = TEE_SINK_OLD;
-        } else {
-            kind = TEE_SINK_NEW;
-        }
-        switch (kind) {
-        case TEE_SINK_NEW: {
-            Pipe *pipe = new Pipe(mTeeSinkInputFrames, format);
-            size_t numCounterOffers = 0;
-            const NBAIO_Format offers[1] = {format};
-            ssize_t index = pipe->negotiate(offers, 1, NULL, numCounterOffers);
-            ALOG_ASSERT(index == 0);
-            PipeReader *pipeReader = new PipeReader(*pipe);
-            numCounterOffers = 0;
-            index = pipeReader->negotiate(offers, 1, NULL, numCounterOffers);
-            ALOG_ASSERT(index == 0);
-            mRecordTeeSink = pipe;
-            mRecordTeeSource = pipeReader;
-            teeSink = pipe;
-            }
-            break;
-        case TEE_SINK_OLD:
-            teeSink = mRecordTeeSink;
-            break;
-        case TEE_SINK_NO:
-        default:
-            break;
-        }
-#endif
-
+    if (status == NO_ERROR && inStream != 0) {
         AudioStreamIn *inputStream = new AudioStreamIn(inHwDev, inStream, flags);
-
-        // Start record thread
-        // RecordThread requires both input and output device indication to forward to audio
-        // pre processing modules
-        sp<RecordThread> thread = new RecordThread(this,
-                                  inputStream,
-                                  *input,
-                                  primaryOutputDevice_l(),
-                                  devices,
-                                  mSystemReady
+        if ((flags & AUDIO_INPUT_FLAG_MMAP_NOIRQ) != 0) {
+            sp<MmapCaptureThread> thread =
+                    new MmapCaptureThread(this, *input,
+                                          inHwDev, inputStream,
+                                          primaryOutputDevice_l(), devices, mSystemReady);
+            mMmapThreads.add(*input, thread);
+            ALOGV("openInput_l() created mmap capture thread: ID %d thread %p", *input,
+                    thread.get());
+            return thread;
+        } else {
 #ifdef TEE_SINK
-                                  , teeSink
+            // Try to re-use most recently used Pipe to archive a copy of input for dumpsys,
+            // or (re-)create if current Pipe is idle and does not match the new format
+            sp<NBAIO_Sink> teeSink;
+            enum {
+                TEE_SINK_NO,    // don't copy input
+                TEE_SINK_NEW,   // copy input using a new pipe
+                TEE_SINK_OLD,   // copy input using an existing pipe
+            } kind;
+            NBAIO_Format format = Format_from_SR_C(halconfig.sample_rate,
+                    audio_channel_count_from_in_mask(halconfig.channel_mask), halconfig.format);
+            if (!mTeeSinkInputEnabled) {
+                kind = TEE_SINK_NO;
+            } else if (!Format_isValid(format)) {
+                kind = TEE_SINK_NO;
+            } else if (mRecordTeeSink == 0) {
+                kind = TEE_SINK_NEW;
+            } else if (mRecordTeeSink->getStrongCount() != 1) {
+                kind = TEE_SINK_NO;
+            } else if (Format_isEqual(format, mRecordTeeSink->format())) {
+                kind = TEE_SINK_OLD;
+            } else {
+                kind = TEE_SINK_NEW;
+            }
+            switch (kind) {
+            case TEE_SINK_NEW: {
+                Pipe *pipe = new Pipe(mTeeSinkInputFrames, format);
+                size_t numCounterOffers = 0;
+                const NBAIO_Format offers[1] = {format};
+                ssize_t index = pipe->negotiate(offers, 1, NULL, numCounterOffers);
+                ALOG_ASSERT(index == 0);
+                PipeReader *pipeReader = new PipeReader(*pipe);
+                numCounterOffers = 0;
+                index = pipeReader->negotiate(offers, 1, NULL, numCounterOffers);
+                ALOG_ASSERT(index == 0);
+                mRecordTeeSink = pipe;
+                mRecordTeeSource = pipeReader;
+                teeSink = pipe;
+                }
+                break;
+            case TEE_SINK_OLD:
+                teeSink = mRecordTeeSink;
+                break;
+            case TEE_SINK_NO:
+            default:
+                break;
+            }
 #endif
-                                  );
-        mRecordThreads.add(*input, thread);
-        ALOGV("openInput_l() created record thread: ID %d thread %p", *input, thread.get());
-        return thread;
+
+            // Start record thread
+            // RecordThread requires both input and output device indication to forward to audio
+            // pre processing modules
+            sp<RecordThread> thread = new RecordThread(this,
+                                      inputStream,
+                                      *input,
+                                      primaryOutputDevice_l(),
+                                      devices,
+                                      mSystemReady
+#ifdef TEE_SINK
+                                      , teeSink
+#endif
+                                      );
+            mRecordThreads.add(*input, thread);
+            ALOGV("openInput_l() created record thread: ID %d thread %p", *input, thread.get());
+            return thread;
+        }
     }
 
     *input = AUDIO_IO_HANDLE_NONE;
@@ -2237,74 +2385,86 @@
 {
     // keep strong reference on the record thread so that
     // it is not destroyed while exit() is executed
-    sp<RecordThread> thread;
+    sp<RecordThread> recordThread;
+    sp<MmapCaptureThread> mmapThread;
     {
         Mutex::Autolock _l(mLock);
-        thread = checkRecordThread_l(input);
-        if (thread == 0) {
-            return BAD_VALUE;
-        }
+        recordThread = checkRecordThread_l(input);
+        if (recordThread != 0) {
+            ALOGV("closeInput() %d", input);
 
-        ALOGV("closeInput() %d", input);
-
-        // If we still have effect chains, it means that a client still holds a handle
-        // on at least one effect. We must either move the chain to an existing thread with the
-        // same session ID or put it aside in case a new record thread is opened for a
-        // new capture on the same session
-        sp<EffectChain> chain;
-        {
-            Mutex::Autolock _sl(thread->mLock);
-            Vector< sp<EffectChain> > effectChains = thread->getEffectChains_l();
-            // Note: maximum one chain per record thread
-            if (effectChains.size() != 0) {
-                chain = effectChains[0];
-            }
-        }
-        if (chain != 0) {
-            // first check if a record thread is already opened with a client on the same session.
-            // This should only happen in case of overlap between one thread tear down and the
-            // creation of its replacement
-            size_t i;
-            for (i = 0; i < mRecordThreads.size(); i++) {
-                sp<RecordThread> t = mRecordThreads.valueAt(i);
-                if (t == thread) {
-                    continue;
-                }
-                if (t->hasAudioSession(chain->sessionId()) != 0) {
-                    Mutex::Autolock _l(t->mLock);
-                    ALOGV("closeInput() found thread %d for effect session %d",
-                          t->id(), chain->sessionId());
-                    t->addEffectChain_l(chain);
-                    break;
+            // If we still have effect chains, it means that a client still holds a handle
+            // on at least one effect. We must either move the chain to an existing thread with the
+            // same session ID or put it aside in case a new record thread is opened for a
+            // new capture on the same session
+            sp<EffectChain> chain;
+            {
+                Mutex::Autolock _sl(recordThread->mLock);
+                Vector< sp<EffectChain> > effectChains = recordThread->getEffectChains_l();
+                // Note: maximum one chain per record thread
+                if (effectChains.size() != 0) {
+                    chain = effectChains[0];
                 }
             }
-            // put the chain aside if we could not find a record thread with the same session id.
-            if (i == mRecordThreads.size()) {
-                putOrphanEffectChain_l(chain);
+            if (chain != 0) {
+                // first check if a record thread is already opened with a client on same session.
+                // This should only happen in case of overlap between one thread tear down and the
+                // creation of its replacement
+                size_t i;
+                for (i = 0; i < mRecordThreads.size(); i++) {
+                    sp<RecordThread> t = mRecordThreads.valueAt(i);
+                    if (t == recordThread) {
+                        continue;
+                    }
+                    if (t->hasAudioSession(chain->sessionId()) != 0) {
+                        Mutex::Autolock _l(t->mLock);
+                        ALOGV("closeInput() found thread %d for effect session %d",
+                              t->id(), chain->sessionId());
+                        t->addEffectChain_l(chain);
+                        break;
+                    }
+                }
+                // put the chain aside if we could not find a record thread with the same session id
+                if (i == mRecordThreads.size()) {
+                    putOrphanEffectChain_l(chain);
+                }
             }
+            mRecordThreads.removeItem(input);
+        } else {
+            mmapThread = (MmapCaptureThread *)checkMmapThread_l(input);
+            if (mmapThread == 0) {
+                return BAD_VALUE;
+            }
+            mMmapThreads.removeItem(input);
         }
         const sp<AudioIoDescriptor> ioDesc = new AudioIoDescriptor();
         ioDesc->mIoHandle = input;
         ioConfigChanged(AUDIO_INPUT_CLOSED, ioDesc);
-        mRecordThreads.removeItem(input);
     }
     // FIXME: calling thread->exit() without mLock held should not be needed anymore now that
     // we have a different lock for notification client
-    closeInputFinish(thread);
+    if (recordThread != 0) {
+        closeInputFinish(recordThread);
+    } else if (mmapThread != 0) {
+        mmapThread->exit();
+        AudioStreamIn *in = mmapThread->clearInput();
+        ALOG_ASSERT(in != NULL, "in shouldn't be NULL");
+        // from now on thread->mInput is NULL
+        delete in;
+    }
     return NO_ERROR;
 }
 
-void AudioFlinger::closeInputFinish(sp<RecordThread> thread)
+void AudioFlinger::closeInputFinish(const sp<RecordThread>& thread)
 {
     thread->exit();
     AudioStreamIn *in = thread->clearInput();
     ALOG_ASSERT(in != NULL, "in shouldn't be NULL");
     // from now on thread->mInput is NULL
-    in->hwDev()->close_input_stream(in->hwDev(), in->stream);
     delete in;
 }
 
-void AudioFlinger::closeInputInternal_l(sp<RecordThread> thread)
+void AudioFlinger::closeInputInternal_l(const sp<RecordThread>& thread)
 {
     mRecordThreads.removeItem(thread->mId);
     closeInputFinish(thread);
@@ -2319,7 +2479,9 @@
         PlaybackThread *thread = mPlaybackThreads.valueAt(i).get();
         thread->invalidateTracks(stream);
     }
-
+    for (size_t i = 0; i < mMmapThreads.size(); i++) {
+        mMmapThreads[i]->invalidateTracks(stream);
+    }
     return NO_ERROR;
 }
 
@@ -2469,16 +2631,18 @@
 // checkThread_l() must be called with AudioFlinger::mLock held
 AudioFlinger::ThreadBase *AudioFlinger::checkThread_l(audio_io_handle_t ioHandle) const
 {
-    ThreadBase *thread = NULL;
-    switch (audio_unique_id_get_use(ioHandle)) {
-    case AUDIO_UNIQUE_ID_USE_OUTPUT:
-        thread = checkPlaybackThread_l(ioHandle);
-        break;
-    case AUDIO_UNIQUE_ID_USE_INPUT:
-        thread = checkRecordThread_l(ioHandle);
-        break;
-    default:
-        break;
+    ThreadBase *thread = checkMmapThread_l(ioHandle);
+    if (thread == 0) {
+        switch (audio_unique_id_get_use(ioHandle)) {
+        case AUDIO_UNIQUE_ID_USE_OUTPUT:
+            thread = checkPlaybackThread_l(ioHandle);
+            break;
+        case AUDIO_UNIQUE_ID_USE_INPUT:
+            thread = checkRecordThread_l(ioHandle);
+            break;
+        default:
+            break;
+        }
     }
     return thread;
 }
@@ -2502,6 +2666,46 @@
     return mRecordThreads.valueFor(input).get();
 }
 
+// checkMmapThread_l() must be called with AudioFlinger::mLock held
+AudioFlinger::MmapThread *AudioFlinger::checkMmapThread_l(audio_io_handle_t io) const
+{
+    return mMmapThreads.valueFor(io).get();
+}
+
+
+// checkPlaybackThread_l() must be called with AudioFlinger::mLock held
+AudioFlinger::VolumeInterface *AudioFlinger::getVolumeInterface_l(audio_io_handle_t output) const
+{
+    VolumeInterface *volumeInterface = mPlaybackThreads.valueFor(output).get();
+    if (volumeInterface == nullptr) {
+        MmapThread *mmapThread = mMmapThreads.valueFor(output).get();
+        if (mmapThread != nullptr) {
+            if (mmapThread->isOutput()) {
+                MmapPlaybackThread *mmapPlaybackThread =
+                        static_cast<MmapPlaybackThread *>(mmapThread);
+                volumeInterface = mmapPlaybackThread;
+            }
+        }
+    }
+    return volumeInterface;
+}
+
+Vector <AudioFlinger::VolumeInterface *> AudioFlinger::getAllVolumeInterfaces_l() const
+{
+    Vector <VolumeInterface *> volumeInterfaces;
+    for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
+        volumeInterfaces.add(mPlaybackThreads.valueAt(i).get());
+    }
+    for (size_t i = 0; i < mMmapThreads.size(); i++) {
+        if (mMmapThreads.valueAt(i)->isOutput()) {
+            MmapPlaybackThread *mmapPlaybackThread =
+                    static_cast<MmapPlaybackThread *>(mMmapThreads.valueAt(i).get());
+            volumeInterfaces.add(mmapPlaybackThread);
+        }
+    }
+    return volumeInterfaces;
+}
+
 audio_unique_id_t AudioFlinger::nextUniqueId(audio_unique_id_use_t use)
 {
     // This is the internal API, so it is OK to assert on bad parameter.
@@ -2572,7 +2776,7 @@
                                     audio_session_t triggerSession,
                                     audio_session_t listenerSession,
                                     sync_event_callback_t callBack,
-                                    wp<RefBase> cookie)
+                                    const wp<RefBase>& cookie)
 {
     Mutex::Autolock _l(mLock);
 
@@ -2604,24 +2808,39 @@
 //  Effect management
 // ----------------------------------------------------------------------------
 
+sp<EffectsFactoryHalInterface> AudioFlinger::getEffectsFactory() {
+    return mEffectsFactoryHal;
+}
 
 status_t AudioFlinger::queryNumberEffects(uint32_t *numEffects) const
 {
     Mutex::Autolock _l(mLock);
-    return EffectQueryNumberEffects(numEffects);
+    if (mEffectsFactoryHal.get()) {
+        return mEffectsFactoryHal->queryNumberEffects(numEffects);
+    } else {
+        return -ENODEV;
+    }
 }
 
 status_t AudioFlinger::queryEffect(uint32_t index, effect_descriptor_t *descriptor) const
 {
     Mutex::Autolock _l(mLock);
-    return EffectQueryEffect(index, descriptor);
+    if (mEffectsFactoryHal.get()) {
+        return mEffectsFactoryHal->getDescriptor(index, descriptor);
+    } else {
+        return -ENODEV;
+    }
 }
 
 status_t AudioFlinger::getEffectDescriptor(const effect_uuid_t *pUuid,
         effect_descriptor_t *descriptor) const
 {
     Mutex::Autolock _l(mLock);
-    return EffectGetDescriptor(pUuid, descriptor);
+    if (mEffectsFactoryHal.get()) {
+        return mEffectsFactoryHal->getDescriptor(pUuid, descriptor);
+    } else {
+        return -ENODEV;
+    }
 }
 
 
@@ -2632,6 +2851,7 @@
         audio_io_handle_t io,
         audio_session_t sessionId,
         const String16& opPackageName,
+        pid_t pid,
         status_t *status,
         int *id,
         int *enabled)
@@ -2640,9 +2860,17 @@
     sp<EffectHandle> handle;
     effect_descriptor_t desc;
 
-    pid_t pid = IPCThreadState::self()->getCallingPid();
-    ALOGV("createEffect pid %d, effectClient %p, priority %d, sessionId %d, io %d",
-            pid, effectClient.get(), priority, sessionId, io);
+    const uid_t callingUid = IPCThreadState::self()->getCallingUid();
+    if (pid == -1 || !isTrustedCallingUid(callingUid)) {
+        const pid_t callingPid = IPCThreadState::self()->getCallingPid();
+        ALOGW_IF(pid != -1 && pid != callingPid,
+                 "%s uid %d pid %d tried to pass itself off as pid %d",
+                 __func__, callingUid, callingPid, pid);
+        pid = callingPid;
+    }
+
+    ALOGV("createEffect pid %d, effectClient %p, priority %d, sessionId %d, io %d, factory %p",
+            pid, effectClient.get(), priority, sessionId, io, mEffectsFactoryHal.get());
 
     if (pDesc == NULL) {
         lStatus = BAD_VALUE;
@@ -2662,10 +2890,15 @@
         goto Exit;
     }
 
+    if (mEffectsFactoryHal == 0) {
+        lStatus = NO_INIT;
+        goto Exit;
+    }
+
     {
-        if (!EffectIsNullUuid(&pDesc->uuid)) {
+        if (!EffectsFactoryHalInterface::isNullUuid(&pDesc->uuid)) {
             // if uuid is specified, request effect descriptor
-            lStatus = EffectGetDescriptor(&pDesc->uuid, &desc);
+            lStatus = mEffectsFactoryHal->getDescriptor(&pDesc->uuid, &desc);
             if (lStatus < 0) {
                 ALOGW("createEffect() error %d from EffectGetDescriptor", lStatus);
                 goto Exit;
@@ -2673,7 +2906,7 @@
         } else {
             // if uuid is not specified, look for an available implementation
             // of the required type in effect factory
-            if (EffectIsNullUuid(&pDesc->type)) {
+            if (EffectsFactoryHalInterface::isNullUuid(&pDesc->type)) {
                 ALOGW("createEffect() no effect type");
                 lStatus = BAD_VALUE;
                 goto Exit;
@@ -2683,13 +2916,13 @@
             d.flags = 0; // prevent compiler warning
             bool found = false;
 
-            lStatus = EffectQueryNumberEffects(&numEffects);
+            lStatus = mEffectsFactoryHal->queryNumberEffects(&numEffects);
             if (lStatus < 0) {
                 ALOGW("createEffect() error %d from EffectQueryNumberEffects", lStatus);
                 goto Exit;
             }
             for (uint32_t i = 0; i < numEffects; i++) {
-                lStatus = EffectQueryEffect(i, &desc);
+                lStatus = mEffectsFactoryHal->getDescriptor(i, &desc);
                 if (lStatus < 0) {
                     ALOGW("createEffect() error %d from EffectQueryEffect", lStatus);
                     continue;
@@ -2764,7 +2997,7 @@
                     break;
                 }
             }
-            if (io == 0) {
+            if (io == AUDIO_IO_HANDLE_NONE) {
                 for (size_t i = 0; i < mRecordThreads.size(); i++) {
                     if (mRecordThreads.valueAt(i)->hasAudioSession(sessionId) != 0) {
                         io = mRecordThreads.keyAt(i);
@@ -2772,6 +3005,14 @@
                     }
                 }
             }
+            if (io == AUDIO_IO_HANDLE_NONE) {
+                for (size_t i = 0; i < mMmapThreads.size(); i++) {
+                    if (mMmapThreads.valueAt(i)->hasAudioSession(sessionId) != 0) {
+                        io = mMmapThreads.keyAt(i);
+                        break;
+                    }
+                }
+            }
             // If no output thread contains the requested session ID, default to
             // first output. The effect chain will be moved to the correct output
             // thread when a track with the same session ID is created
@@ -2784,9 +3025,12 @@
         if (thread == NULL) {
             thread = checkPlaybackThread_l(io);
             if (thread == NULL) {
-                ALOGE("createEffect() unknown output thread");
-                lStatus = BAD_VALUE;
-                goto Exit;
+                thread = checkMmapThread_l(io);
+                if (thread == NULL) {
+                    ALOGE("createEffect() unknown output thread");
+                    lStatus = BAD_VALUE;
+                    goto Exit;
+                }
             }
         } else {
             // Check if one effect chain was awaiting for an effect to be created on this
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 40c8a72..75b4e4c 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -19,11 +19,14 @@
 #define ANDROID_AUDIO_FLINGER_H
 
 #include "Configuration.h"
+#include <deque>
+#include <map>
 #include <stdint.h>
 #include <sys/types.h>
 #include <limits.h>
 
 #include <cutils/compiler.h>
+#include <cutils/properties.h>
 
 #include <media/IAudioFlinger.h>
 #include <media/IAudioFlingerClient.h>
@@ -31,6 +34,8 @@
 #include <media/IAudioRecord.h>
 #include <media/AudioSystem.h>
 #include <media/AudioTrack.h>
+#include <media/MmapStreamInterface.h>
+#include <media/MmapStreamCallback.h>
 
 #include <utils/Atomic.h>
 #include <utils/Errors.h>
@@ -43,21 +48,25 @@
 #include <binder/MemoryDealer.h>
 
 #include <system/audio.h>
-#include <hardware/audio.h>
-#include <hardware/audio_policy.h>
+#include <system/audio_policy.h>
 
+#include <media/audiohal/EffectBufferHalInterface.h>
+#include <media/audiohal/StreamHalInterface.h>
 #include <media/AudioBufferProvider.h>
+#include <media/AudioMixer.h>
 #include <media/ExtendedAudioBufferProvider.h>
+#include <media/LinearMap.h>
+#include <media/VolumeShaper.h>
+
+#include <audio_utils/SimpleLog.h>
 
 #include "FastCapture.h"
 #include "FastMixer.h"
 #include <media/nbaio/NBAIO.h>
 #include "AudioWatchdog.h"
-#include "AudioMixer.h"
 #include "AudioStreamOut.h"
 #include "SpdifStreamOut.h"
 #include "AudioHwDevice.h"
-#include "LinearMap.h"
 
 #include <powermanager/IPowerManager.h>
 
@@ -71,8 +80,12 @@
 class AudioMixer;
 class AudioBuffer;
 class AudioResampler;
+class DeviceHalInterface;
+class DevicesFactoryHalInterface;
+class EffectsFactoryHalInterface;
 class FastMixer;
 class PassthruBufferProvider;
+class RecordBufferConverter;
 class ServerProxy;
 
 // ----------------------------------------------------------------------------
@@ -92,6 +105,7 @@
     public BnAudioFlinger
 {
     friend class BinderService<AudioFlinger>;   // for AudioFlinger()
+
 public:
     static const char* getServiceName() ANDROID_API { return "media.audio_flinger"; }
 
@@ -111,7 +125,8 @@
                                 pid_t tid,
                                 audio_session_t *sessionId,
                                 int clientUid,
-                                status_t *status /*non-NULL*/);
+                                status_t *status /*non-NULL*/,
+                                audio_port_handle_t portId);
 
     virtual sp<IAudioRecord> openRecord(
                                 audio_io_handle_t input,
@@ -128,7 +143,8 @@
                                 size_t *notificationFrames,
                                 sp<IMemory>& cblk,
                                 sp<IMemory>& buffers,
-                                status_t *status /*non-NULL*/);
+                                status_t *status /*non-NULL*/,
+                                audio_port_handle_t portId);
 
     virtual     uint32_t    sampleRate(audio_io_handle_t ioHandle) const;
     virtual     audio_format_t format(audio_io_handle_t output) const;
@@ -220,6 +236,7 @@
                         audio_io_handle_t io,
                         audio_session_t sessionId,
                         const String16& opPackageName,
+                        pid_t pid,
                         status_t *status /*non-NULL*/,
                         int *id,
                         int *enabled);
@@ -271,6 +288,15 @@
 
     sp<NBLog::Writer>   newWriter_l(size_t size, const char *name);
     void                unregisterWriter(const sp<NBLog::Writer>& writer);
+    sp<EffectsFactoryHalInterface> getEffectsFactory();
+
+    status_t openMmapStream(MmapStreamInterface::stream_direction_t direction,
+                            const audio_attributes_t *attr,
+                            audio_config_base_t *config,
+                            const MmapStreamInterface::Client& client,
+                            audio_port_handle_t *deviceId,
+                            const sp<MmapStreamCallback>& callback,
+                            sp<MmapStreamInterface>& interface);
 private:
     static const size_t kLogMemorySize = 40 * 1024;
     sp<MemoryDealer>    mLogMemoryDealer;   // == 0 when NBLog is disabled
@@ -278,6 +304,7 @@
     // for as long as possible.  The memory is only freed when it is needed for another log writer.
     Vector< sp<NBLog::Writer> > mUnregisteredWriters;
     Mutex               mUnregisteredWritersLock;
+
 public:
 
     class SyncEvent;
@@ -318,7 +345,7 @@
                                         audio_session_t triggerSession,
                                         audio_session_t listenerSession,
                                         sync_event_callback_t callBack,
-                                        wp<RefBase> cookie);
+                                        const wp<RefBase>& cookie);
 
 private:
 
@@ -447,6 +474,38 @@
         const sp<IAudioFlingerClient> mAudioFlingerClient;
     };
 
+    // --- MediaLogNotifier ---
+    // Thread in charge of notifying MediaLogService to start merging.
+    // Receives requests from AudioFlinger's binder activity. It is used to reduce the amount of
+    // binder calls to MediaLogService in case of bursts of AudioFlinger binder calls.
+    class MediaLogNotifier : public Thread {
+    public:
+        MediaLogNotifier();
+
+        // Requests a MediaLogService notification. It's ignored if there has recently been another
+        void requestMerge();
+    private:
+        // Every iteration blocks waiting for a request, then interacts with MediaLogService to
+        // start merging.
+        // As every MediaLogService binder call is expensive, once it gets a request it ignores the
+        // following ones for a period of time.
+        virtual bool threadLoop() override;
+
+        bool mPendingRequests;
+
+        // Mutex and condition variable around mPendingRequests' value
+        Mutex       mMutex;
+        Condition   mCond;
+
+        // Duration of the sleep period after a processed request
+        static const int kPostTriggerSleepPeriod = 1000000;
+    };
+
+    const sp<MediaLogNotifier> mMediaLogNotifier;
+
+    // This is a helper that is called during incoming binder calls.
+    void requestLogMerge();
+
     class TrackHandle;
     class RecordHandle;
     class RecordThread;
@@ -485,7 +544,7 @@
     // server side of the client's IAudioTrack
     class TrackHandle : public android::BnAudioTrack {
     public:
-                            TrackHandle(const sp<PlaybackThread::Track>& track);
+        explicit            TrackHandle(const sp<PlaybackThread::Track>& track);
         virtual             ~TrackHandle();
         virtual sp<IMemory> getCblk() const;
         virtual status_t    start();
@@ -494,6 +553,10 @@
         virtual void        pause();
         virtual status_t    attachAuxEffect(int effectId);
         virtual status_t    setParameters(const String8& keyValuePairs);
+        virtual VolumeShaper::Status applyVolumeShaper(
+                const sp<VolumeShaper::Configuration>& configuration,
+                const sp<VolumeShaper::Operation>& operation) override;
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id) override;
         virtual status_t    getTimestamp(AudioTimestamp& timestamp);
         virtual void        signal(); // signal playback thread for a change in control block
 
@@ -507,7 +570,7 @@
     // server side of the client's IAudioRecord
     class RecordHandle : public android::BnAudioRecord {
     public:
-        RecordHandle(const sp<RecordThread::RecordTrack>& recordTrack);
+        explicit RecordHandle(const sp<RecordThread::RecordTrack>& recordTrack);
         virtual             ~RecordHandle();
         virtual status_t    start(int /*AudioSystem::sync_event_t*/ event,
                 audio_session_t triggerSession);
@@ -521,27 +584,50 @@
         void                stop_nonvirtual();
     };
 
+    // Mmap stream control interface implementation. Each MmapThreadHandle controls one
+    // MmapPlaybackThread or MmapCaptureThread instance.
+    class MmapThreadHandle : public MmapStreamInterface {
+    public:
+        explicit            MmapThreadHandle(const sp<MmapThread>& thread);
+        virtual             ~MmapThreadHandle();
+
+        // MmapStreamInterface virtuals
+        virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                          struct audio_mmap_buffer_info *info);
+        virtual status_t getMmapPosition(struct audio_mmap_position *position);
+        virtual status_t start(const MmapStreamInterface::Client& client,
+                                         audio_port_handle_t *handle);
+        virtual status_t stop(audio_port_handle_t handle);
+        virtual status_t standby();
+
+    private:
+        sp<MmapThread> mThread;
+    };
 
               ThreadBase *checkThread_l(audio_io_handle_t ioHandle) const;
               PlaybackThread *checkPlaybackThread_l(audio_io_handle_t output) const;
               MixerThread *checkMixerThread_l(audio_io_handle_t output) const;
               RecordThread *checkRecordThread_l(audio_io_handle_t input) const;
-              sp<RecordThread> openInput_l(audio_module_handle_t module,
+              MmapThread *checkMmapThread_l(audio_io_handle_t io) const;
+              VolumeInterface *getVolumeInterface_l(audio_io_handle_t output) const;
+              Vector <VolumeInterface *> getAllVolumeInterfaces_l() const;
+
+              sp<ThreadBase> openInput_l(audio_module_handle_t module,
                                            audio_io_handle_t *input,
                                            audio_config_t *config,
                                            audio_devices_t device,
                                            const String8& address,
                                            audio_source_t source,
                                            audio_input_flags_t flags);
-              sp<PlaybackThread> openOutput_l(audio_module_handle_t module,
+              sp<ThreadBase> openOutput_l(audio_module_handle_t module,
                                               audio_io_handle_t *output,
                                               audio_config_t *config,
                                               audio_devices_t devices,
                                               const String8& address,
                                               audio_output_flags_t flags);
 
-              void closeOutputFinish(sp<PlaybackThread> thread);
-              void closeInputFinish(sp<RecordThread> thread);
+              void closeOutputFinish(const sp<PlaybackThread>& thread);
+              void closeInputFinish(const sp<RecordThread>& thread);
 
               // no range check, AudioFlinger::mLock held
               bool streamMute_l(audio_stream_type_t stream) const
@@ -612,12 +698,12 @@
 
     struct AudioStreamIn {
         AudioHwDevice* const audioHwDev;
-        audio_stream_in_t* const stream;
+        sp<StreamInHalInterface> stream;
         audio_input_flags_t flags;
 
-        audio_hw_device_t* hwDev() const { return audioHwDev->hwDevice(); }
+        sp<DeviceHalInterface> hwDev() const { return audioHwDev->hwDevice(); }
 
-        AudioStreamIn(AudioHwDevice *dev, audio_stream_in_t *in, audio_input_flags_t flags) :
+        AudioStreamIn(AudioHwDevice *dev, sp<StreamInHalInterface> in, audio_input_flags_t flags) :
             audioHwDev(dev), stream(in), flags(flags) {}
     };
 
@@ -646,6 +732,8 @@
                 AudioHwDevice*                      mPrimaryHardwareDev; // mAudioHwDevs[0] or NULL
                 DefaultKeyedVector<audio_module_handle_t, AudioHwDevice*>  mAudioHwDevs;
 
+                sp<DevicesFactoryHalInterface> mDevicesFactoryHal;
+
     // for dump, indicates which hardware operation is currently in progress (but not stream ops)
     enum hardware_call_state {
         AUDIO_HW_IDLE = 0,              // no operation in progress
@@ -708,14 +796,20 @@
 
                 // list of sessions for which a valid HW A/V sync ID was retrieved from the HAL
                 DefaultKeyedVector< audio_session_t , audio_hw_sync_t >mHwAvSyncIds;
+
+                // list of MMAP stream control threads. Those threads allow for wake lock, routing
+                // and volume control for activity on the associated MMAP stream at the HAL.
+                // Audio data transfer is directly handled by the client creating the MMAP stream
+                DefaultKeyedVector< audio_io_handle_t, sp<MmapThread> >  mMmapThreads;
+
 private:
     sp<Client>  registerPid(pid_t pid);    // always returns non-0
 
     // for use from destructor
     status_t    closeOutput_nonvirtual(audio_io_handle_t output);
-    void        closeOutputInternal_l(sp<PlaybackThread> thread);
+    void        closeOutputInternal_l(const sp<PlaybackThread>& thread);
     status_t    closeInput_nonvirtual(audio_io_handle_t input);
-    void        closeInputInternal_l(sp<RecordThread> thread);
+    void        closeInputInternal_l(const sp<RecordThread>& thread);
     void        setAudioHwSyncForSession_l(PlaybackThread *thread, audio_session_t sessionId);
 
     status_t    checkStreamType(audio_stream_type_t stream) const;
@@ -761,16 +855,17 @@
     nsecs_t mGlobalEffectEnableTime;  // when a global effect was last enabled
 
     sp<PatchPanel> mPatchPanel;
+    sp<EffectsFactoryHalInterface> mEffectsFactoryHal;
 
     bool        mSystemReady;
 };
 
 #undef INCLUDING_FROM_AUDIOFLINGER_H
 
-const char *formatToString(audio_format_t format);
-String8 inputFlagsToString(audio_input_flags_t flags);
-String8 outputFlagsToString(audio_output_flags_t flags);
-String8 devicesToString(audio_devices_t devices);
+std::string formatToString(audio_format_t format);
+std::string inputFlagsToString(audio_input_flags_t flags);
+std::string outputFlagsToString(audio_output_flags_t flags);
+std::string devicesToString(audio_devices_t devices);
 const char *sourceToString(audio_source_t source);
 
 // ----------------------------------------------------------------------------
diff --git a/services/audioflinger/AudioHwDevice.cpp b/services/audioflinger/AudioHwDevice.cpp
index 7494930..b109d06 100644
--- a/services/audioflinger/AudioHwDevice.cpp
+++ b/services/audioflinger/AudioHwDevice.cpp
@@ -18,7 +18,7 @@
 #define LOG_TAG "AudioHwDevice"
 //#define LOG_NDEBUG 0
 
-#include <hardware/audio.h>
+#include <system/audio.h>
 #include <utils/Log.h>
 
 #include <audio_utils/spdif/SPDIFEncoder.h>
@@ -93,5 +93,10 @@
     return status;
 }
 
+bool AudioHwDevice::supportsAudioPatches() const {
+    bool result;
+    return mHwDevice->supportsAudioPatches(&result) == OK ? result : false;
+}
+
 
 }; // namespace android
diff --git a/services/audioflinger/AudioHwDevice.h b/services/audioflinger/AudioHwDevice.h
index b9f65c1..eb826c6 100644
--- a/services/audioflinger/AudioHwDevice.h
+++ b/services/audioflinger/AudioHwDevice.h
@@ -22,11 +22,10 @@
 #include <stdlib.h>
 #include <sys/types.h>
 
-#include <hardware/audio.h>
+#include <media/audiohal/DeviceHalInterface.h>
 #include <utils/Errors.h>
 #include <system/audio.h>
 
-
 namespace android {
 
 class AudioStreamOut;
@@ -40,7 +39,7 @@
 
     AudioHwDevice(audio_module_handle_t handle,
                   const char *moduleName,
-                  audio_hw_device_t *hwDevice,
+                  sp<DeviceHalInterface> hwDevice,
                   Flags flags)
         : mHandle(handle)
         , mModuleName(strdup(moduleName))
@@ -58,8 +57,7 @@
 
     audio_module_handle_t handle() const { return mHandle; }
     const char *moduleName() const { return mModuleName; }
-    audio_hw_device_t *hwDevice() const { return mHwDevice; }
-    uint32_t version() const { return mHwDevice->common.version; }
+    sp<DeviceHalInterface> hwDevice() const { return mHwDevice; }
 
     /** This method creates and opens the audio hardware output stream.
      * The "address" parameter qualifies the "devices" audio device type if needed.
@@ -76,10 +74,12 @@
             struct audio_config *config,
             const char *address);
 
+    bool supportsAudioPatches() const;
+
 private:
     const audio_module_handle_t mHandle;
     const char * const          mModuleName;
-    audio_hw_device_t * const   mHwDevice;
+    sp<DeviceHalInterface>      mHwDevice;
     const Flags                 mFlags;
 };
 
diff --git a/services/audioflinger/AudioMixer.cpp b/services/audioflinger/AudioMixer.cpp
deleted file mode 100644
index 0be7199..0000000
--- a/services/audioflinger/AudioMixer.cpp
+++ /dev/null
@@ -1,2081 +0,0 @@
-/*
-**
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#define LOG_TAG "AudioMixer"
-//#define LOG_NDEBUG 0
-
-#include "Configuration.h"
-#include <stdint.h>
-#include <string.h>
-#include <stdlib.h>
-#include <math.h>
-#include <sys/types.h>
-
-#include <utils/Errors.h>
-#include <utils/Log.h>
-
-#include <cutils/bitops.h>
-#include <cutils/compiler.h>
-#include <utils/Debug.h>
-
-#include <system/audio.h>
-
-#include <audio_utils/primitives.h>
-#include <audio_utils/format.h>
-
-#include "AudioMixerOps.h"
-#include "AudioMixer.h"
-
-// The FCC_2 macro refers to the Fixed Channel Count of 2 for the legacy integer mixer.
-#ifndef FCC_2
-#define FCC_2 2
-#endif
-
-// Look for MONO_HACK for any Mono hack involving legacy mono channel to
-// stereo channel conversion.
-
-/* VERY_VERY_VERBOSE_LOGGING will show exactly which process hook and track hook is
- * being used. This is a considerable amount of log spam, so don't enable unless you
- * are verifying the hook based code.
- */
-//#define VERY_VERY_VERBOSE_LOGGING
-#ifdef VERY_VERY_VERBOSE_LOGGING
-#define ALOGVV ALOGV
-//define ALOGVV printf  // for test-mixer.cpp
-#else
-#define ALOGVV(a...) do { } while (0)
-#endif
-
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
-#endif
-
-// TODO: Move these macro/inlines to a header file.
-template <typename T>
-static inline
-T max(const T& x, const T& y) {
-    return x > y ? x : y;
-}
-
-// Set kUseNewMixer to true to use the new mixer engine always. Otherwise the
-// original code will be used for stereo sinks, the new mixer for multichannel.
-static const bool kUseNewMixer = true;
-
-// Set kUseFloat to true to allow floating input into the mixer engine.
-// If kUseNewMixer is false, this is ignored or may be overridden internally
-// because of downmix/upmix support.
-static const bool kUseFloat = true;
-
-// Set to default copy buffer size in frames for input processing.
-static const size_t kCopyBufferFrameCount = 256;
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-template <typename T>
-T min(const T& a, const T& b)
-{
-    return a < b ? a : b;
-}
-
-// ----------------------------------------------------------------------------
-
-// Ensure mConfiguredNames bitmask is initialized properly on all architectures.
-// The value of 1 << x is undefined in C when x >= 32.
-
-AudioMixer::AudioMixer(size_t frameCount, uint32_t sampleRate, uint32_t maxNumTracks)
-    :   mTrackNames(0), mConfiguredNames((maxNumTracks >= 32 ? 0 : 1 << maxNumTracks) - 1),
-        mSampleRate(sampleRate)
-{
-    ALOG_ASSERT(maxNumTracks <= MAX_NUM_TRACKS, "maxNumTracks %u > MAX_NUM_TRACKS %u",
-            maxNumTracks, MAX_NUM_TRACKS);
-
-    // AudioMixer is not yet capable of more than 32 active track inputs
-    ALOG_ASSERT(32 >= MAX_NUM_TRACKS, "bad MAX_NUM_TRACKS %d", MAX_NUM_TRACKS);
-
-    pthread_once(&sOnceControl, &sInitRoutine);
-
-    mState.enabledTracks= 0;
-    mState.needsChanged = 0;
-    mState.frameCount   = frameCount;
-    mState.hook         = process__nop;
-    mState.outputTemp   = NULL;
-    mState.resampleTemp = NULL;
-    mState.mLog         = &mDummyLog;
-    // mState.reserved
-
-    // FIXME Most of the following initialization is probably redundant since
-    // tracks[i] should only be referenced if (mTrackNames & (1 << i)) != 0
-    // and mTrackNames is initially 0.  However, leave it here until that's verified.
-    track_t* t = mState.tracks;
-    for (unsigned i=0 ; i < MAX_NUM_TRACKS ; i++) {
-        t->resampler = NULL;
-        t->downmixerBufferProvider = NULL;
-        t->mReformatBufferProvider = NULL;
-        t->mTimestretchBufferProvider = NULL;
-        t++;
-    }
-
-}
-
-AudioMixer::~AudioMixer()
-{
-    track_t* t = mState.tracks;
-    for (unsigned i=0 ; i < MAX_NUM_TRACKS ; i++) {
-        delete t->resampler;
-        delete t->downmixerBufferProvider;
-        delete t->mReformatBufferProvider;
-        delete t->mTimestretchBufferProvider;
-        t++;
-    }
-    delete [] mState.outputTemp;
-    delete [] mState.resampleTemp;
-}
-
-void AudioMixer::setLog(NBLog::Writer *log)
-{
-    mState.mLog = log;
-}
-
-static inline audio_format_t selectMixerInFormat(audio_format_t inputFormat __unused) {
-    return kUseFloat && kUseNewMixer ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
-}
-
-int AudioMixer::getTrackName(audio_channel_mask_t channelMask,
-        audio_format_t format, int sessionId)
-{
-    if (!isValidPcmTrackFormat(format)) {
-        ALOGE("AudioMixer::getTrackName invalid format (%#x)", format);
-        return -1;
-    }
-    uint32_t names = (~mTrackNames) & mConfiguredNames;
-    if (names != 0) {
-        int n = __builtin_ctz(names);
-        ALOGV("add track (%d)", n);
-        // assume default parameters for the track, except where noted below
-        track_t* t = &mState.tracks[n];
-        t->needs = 0;
-
-        // Integer volume.
-        // Currently integer volume is kept for the legacy integer mixer.
-        // Will be removed when the legacy mixer path is removed.
-        t->volume[0] = UNITY_GAIN_INT;
-        t->volume[1] = UNITY_GAIN_INT;
-        t->prevVolume[0] = UNITY_GAIN_INT << 16;
-        t->prevVolume[1] = UNITY_GAIN_INT << 16;
-        t->volumeInc[0] = 0;
-        t->volumeInc[1] = 0;
-        t->auxLevel = 0;
-        t->auxInc = 0;
-        t->prevAuxLevel = 0;
-
-        // Floating point volume.
-        t->mVolume[0] = UNITY_GAIN_FLOAT;
-        t->mVolume[1] = UNITY_GAIN_FLOAT;
-        t->mPrevVolume[0] = UNITY_GAIN_FLOAT;
-        t->mPrevVolume[1] = UNITY_GAIN_FLOAT;
-        t->mVolumeInc[0] = 0.;
-        t->mVolumeInc[1] = 0.;
-        t->mAuxLevel = 0.;
-        t->mAuxInc = 0.;
-        t->mPrevAuxLevel = 0.;
-
-        // no initialization needed
-        // t->frameCount
-        t->channelCount = audio_channel_count_from_out_mask(channelMask);
-        t->enabled = false;
-        ALOGV_IF(audio_channel_mask_get_bits(channelMask) != AUDIO_CHANNEL_OUT_STEREO,
-                "Non-stereo channel mask: %d\n", channelMask);
-        t->channelMask = channelMask;
-        t->sessionId = sessionId;
-        // setBufferProvider(name, AudioBufferProvider *) is required before enable(name)
-        t->bufferProvider = NULL;
-        t->buffer.raw = NULL;
-        // no initialization needed
-        // t->buffer.frameCount
-        t->hook = NULL;
-        t->in = NULL;
-        t->resampler = NULL;
-        t->sampleRate = mSampleRate;
-        // setParameter(name, TRACK, MAIN_BUFFER, mixBuffer) is required before enable(name)
-        t->mainBuffer = NULL;
-        t->auxBuffer = NULL;
-        t->mInputBufferProvider = NULL;
-        t->mReformatBufferProvider = NULL;
-        t->downmixerBufferProvider = NULL;
-        t->mPostDownmixReformatBufferProvider = NULL;
-        t->mTimestretchBufferProvider = NULL;
-        t->mMixerFormat = AUDIO_FORMAT_PCM_16_BIT;
-        t->mFormat = format;
-        t->mMixerInFormat = selectMixerInFormat(format);
-        t->mDownmixRequiresFormat = AUDIO_FORMAT_INVALID; // no format required
-        t->mMixerChannelMask = audio_channel_mask_from_representation_and_bits(
-                AUDIO_CHANNEL_REPRESENTATION_POSITION, AUDIO_CHANNEL_OUT_STEREO);
-        t->mMixerChannelCount = audio_channel_count_from_out_mask(t->mMixerChannelMask);
-        t->mPlaybackRate = AUDIO_PLAYBACK_RATE_DEFAULT;
-        // Check the downmixing (or upmixing) requirements.
-        status_t status = t->prepareForDownmix();
-        if (status != OK) {
-            ALOGE("AudioMixer::getTrackName invalid channelMask (%#x)", channelMask);
-            return -1;
-        }
-        // prepareForDownmix() may change mDownmixRequiresFormat
-        ALOGVV("mMixerFormat:%#x  mMixerInFormat:%#x\n", t->mMixerFormat, t->mMixerInFormat);
-        t->prepareForReformat();
-        mTrackNames |= 1 << n;
-        return TRACK0 + n;
-    }
-    ALOGE("AudioMixer::getTrackName out of available tracks");
-    return -1;
-}
-
-void AudioMixer::invalidateState(uint32_t mask)
-{
-    if (mask != 0) {
-        mState.needsChanged |= mask;
-        mState.hook = process__validate;
-    }
- }
-
-// Called when channel masks have changed for a track name
-// TODO: Fix DownmixerBufferProvider not to (possibly) change mixer input format,
-// which will simplify this logic.
-bool AudioMixer::setChannelMasks(int name,
-        audio_channel_mask_t trackChannelMask, audio_channel_mask_t mixerChannelMask) {
-    track_t &track = mState.tracks[name];
-
-    if (trackChannelMask == track.channelMask
-            && mixerChannelMask == track.mMixerChannelMask) {
-        return false;  // no need to change
-    }
-    // always recompute for both channel masks even if only one has changed.
-    const uint32_t trackChannelCount = audio_channel_count_from_out_mask(trackChannelMask);
-    const uint32_t mixerChannelCount = audio_channel_count_from_out_mask(mixerChannelMask);
-    const bool mixerChannelCountChanged = track.mMixerChannelCount != mixerChannelCount;
-
-    ALOG_ASSERT((trackChannelCount <= MAX_NUM_CHANNELS_TO_DOWNMIX)
-            && trackChannelCount
-            && mixerChannelCount);
-    track.channelMask = trackChannelMask;
-    track.channelCount = trackChannelCount;
-    track.mMixerChannelMask = mixerChannelMask;
-    track.mMixerChannelCount = mixerChannelCount;
-
-    // channel masks have changed, does this track need a downmixer?
-    // update to try using our desired format (if we aren't already using it)
-    const audio_format_t prevDownmixerFormat = track.mDownmixRequiresFormat;
-    const status_t status = mState.tracks[name].prepareForDownmix();
-    ALOGE_IF(status != OK,
-            "prepareForDownmix error %d, track channel mask %#x, mixer channel mask %#x",
-            status, track.channelMask, track.mMixerChannelMask);
-
-    if (prevDownmixerFormat != track.mDownmixRequiresFormat) {
-        track.prepareForReformat(); // because of downmixer, track format may change!
-    }
-
-    if (track.resampler && mixerChannelCountChanged) {
-        // resampler channels may have changed.
-        const uint32_t resetToSampleRate = track.sampleRate;
-        delete track.resampler;
-        track.resampler = NULL;
-        track.sampleRate = mSampleRate; // without resampler, track rate is device sample rate.
-        // recreate the resampler with updated format, channels, saved sampleRate.
-        track.setResampler(resetToSampleRate /*trackSampleRate*/, mSampleRate /*devSampleRate*/);
-    }
-    return true;
-}
-
-void AudioMixer::track_t::unprepareForDownmix() {
-    ALOGV("AudioMixer::unprepareForDownmix(%p)", this);
-
-    mDownmixRequiresFormat = AUDIO_FORMAT_INVALID;
-    if (downmixerBufferProvider != NULL) {
-        // this track had previously been configured with a downmixer, delete it
-        ALOGV(" deleting old downmixer");
-        delete downmixerBufferProvider;
-        downmixerBufferProvider = NULL;
-        reconfigureBufferProviders();
-    } else {
-        ALOGV(" nothing to do, no downmixer to delete");
-    }
-}
-
-status_t AudioMixer::track_t::prepareForDownmix()
-{
-    ALOGV("AudioMixer::prepareForDownmix(%p) with mask 0x%x",
-            this, channelMask);
-
-    // discard the previous downmixer if there was one
-    unprepareForDownmix();
-    // MONO_HACK Only remix (upmix or downmix) if the track and mixer/device channel masks
-    // are not the same and not handled internally, as mono -> stereo currently is.
-    if (channelMask == mMixerChannelMask
-            || (channelMask == AUDIO_CHANNEL_OUT_MONO
-                    && mMixerChannelMask == AUDIO_CHANNEL_OUT_STEREO)) {
-        return NO_ERROR;
-    }
-    // DownmixerBufferProvider is only used for position masks.
-    if (audio_channel_mask_get_representation(channelMask)
-                == AUDIO_CHANNEL_REPRESENTATION_POSITION
-            && DownmixerBufferProvider::isMultichannelCapable()) {
-        DownmixerBufferProvider* pDbp = new DownmixerBufferProvider(channelMask,
-                mMixerChannelMask,
-                AUDIO_FORMAT_PCM_16_BIT /* TODO: use mMixerInFormat, now only PCM 16 */,
-                sampleRate, sessionId, kCopyBufferFrameCount);
-
-        if (pDbp->isValid()) { // if constructor completed properly
-            mDownmixRequiresFormat = AUDIO_FORMAT_PCM_16_BIT; // PCM 16 bit required for downmix
-            downmixerBufferProvider = pDbp;
-            reconfigureBufferProviders();
-            return NO_ERROR;
-        }
-        delete pDbp;
-    }
-
-    // Effect downmixer does not accept the channel conversion.  Let's use our remixer.
-    RemixBufferProvider* pRbp = new RemixBufferProvider(channelMask,
-            mMixerChannelMask, mMixerInFormat, kCopyBufferFrameCount);
-    // Remix always finds a conversion whereas Downmixer effect above may fail.
-    downmixerBufferProvider = pRbp;
-    reconfigureBufferProviders();
-    return NO_ERROR;
-}
-
-void AudioMixer::track_t::unprepareForReformat() {
-    ALOGV("AudioMixer::unprepareForReformat(%p)", this);
-    bool requiresReconfigure = false;
-    if (mReformatBufferProvider != NULL) {
-        delete mReformatBufferProvider;
-        mReformatBufferProvider = NULL;
-        requiresReconfigure = true;
-    }
-    if (mPostDownmixReformatBufferProvider != NULL) {
-        delete mPostDownmixReformatBufferProvider;
-        mPostDownmixReformatBufferProvider = NULL;
-        requiresReconfigure = true;
-    }
-    if (requiresReconfigure) {
-        reconfigureBufferProviders();
-    }
-}
-
-status_t AudioMixer::track_t::prepareForReformat()
-{
-    ALOGV("AudioMixer::prepareForReformat(%p) with format %#x", this, mFormat);
-    // discard previous reformatters
-    unprepareForReformat();
-    // only configure reformatters as needed
-    const audio_format_t targetFormat = mDownmixRequiresFormat != AUDIO_FORMAT_INVALID
-            ? mDownmixRequiresFormat : mMixerInFormat;
-    bool requiresReconfigure = false;
-    if (mFormat != targetFormat) {
-        mReformatBufferProvider = new ReformatBufferProvider(
-                audio_channel_count_from_out_mask(channelMask),
-                mFormat,
-                targetFormat,
-                kCopyBufferFrameCount);
-        requiresReconfigure = true;
-    }
-    if (targetFormat != mMixerInFormat) {
-        mPostDownmixReformatBufferProvider = new ReformatBufferProvider(
-                audio_channel_count_from_out_mask(mMixerChannelMask),
-                targetFormat,
-                mMixerInFormat,
-                kCopyBufferFrameCount);
-        requiresReconfigure = true;
-    }
-    if (requiresReconfigure) {
-        reconfigureBufferProviders();
-    }
-    return NO_ERROR;
-}
-
-void AudioMixer::track_t::reconfigureBufferProviders()
-{
-    bufferProvider = mInputBufferProvider;
-    if (mReformatBufferProvider) {
-        mReformatBufferProvider->setBufferProvider(bufferProvider);
-        bufferProvider = mReformatBufferProvider;
-    }
-    if (downmixerBufferProvider) {
-        downmixerBufferProvider->setBufferProvider(bufferProvider);
-        bufferProvider = downmixerBufferProvider;
-    }
-    if (mPostDownmixReformatBufferProvider) {
-        mPostDownmixReformatBufferProvider->setBufferProvider(bufferProvider);
-        bufferProvider = mPostDownmixReformatBufferProvider;
-    }
-    if (mTimestretchBufferProvider) {
-        mTimestretchBufferProvider->setBufferProvider(bufferProvider);
-        bufferProvider = mTimestretchBufferProvider;
-    }
-}
-
-void AudioMixer::deleteTrackName(int name)
-{
-    ALOGV("AudioMixer::deleteTrackName(%d)", name);
-    name -= TRACK0;
-    LOG_ALWAYS_FATAL_IF(name < 0 || name >= (int)MAX_NUM_TRACKS, "bad track name %d", name);
-    ALOGV("deleteTrackName(%d)", name);
-    track_t& track(mState.tracks[ name ]);
-    if (track.enabled) {
-        track.enabled = false;
-        invalidateState(1<<name);
-    }
-    // delete the resampler
-    delete track.resampler;
-    track.resampler = NULL;
-    // delete the downmixer
-    mState.tracks[name].unprepareForDownmix();
-    // delete the reformatter
-    mState.tracks[name].unprepareForReformat();
-    // delete the timestretch provider
-    delete track.mTimestretchBufferProvider;
-    track.mTimestretchBufferProvider = NULL;
-    mTrackNames &= ~(1<<name);
-}
-
-void AudioMixer::enable(int name)
-{
-    name -= TRACK0;
-    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
-    track_t& track = mState.tracks[name];
-
-    if (!track.enabled) {
-        track.enabled = true;
-        ALOGV("enable(%d)", name);
-        invalidateState(1 << name);
-    }
-}
-
-void AudioMixer::disable(int name)
-{
-    name -= TRACK0;
-    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
-    track_t& track = mState.tracks[name];
-
-    if (track.enabled) {
-        track.enabled = false;
-        ALOGV("disable(%d)", name);
-        invalidateState(1 << name);
-    }
-}
-
-/* Sets the volume ramp variables for the AudioMixer.
- *
- * The volume ramp variables are used to transition from the previous
- * volume to the set volume.  ramp controls the duration of the transition.
- * Its value is typically one state framecount period, but may also be 0,
- * meaning "immediate."
- *
- * FIXME: 1) Volume ramp is enabled only if there is a nonzero integer increment
- * even if there is a nonzero floating point increment (in that case, the volume
- * change is immediate).  This restriction should be changed when the legacy mixer
- * is removed (see #2).
- * FIXME: 2) Integer volume variables are used for Legacy mixing and should be removed
- * when no longer needed.
- *
- * @param newVolume set volume target in floating point [0.0, 1.0].
- * @param ramp number of frames to increment over. if ramp is 0, the volume
- * should be set immediately.  Currently ramp should not exceed 65535 (frames).
- * @param pIntSetVolume pointer to the U4.12 integer target volume, set on return.
- * @param pIntPrevVolume pointer to the U4.28 integer previous volume, set on return.
- * @param pIntVolumeInc pointer to the U4.28 increment per output audio frame, set on return.
- * @param pSetVolume pointer to the float target volume, set on return.
- * @param pPrevVolume pointer to the float previous volume, set on return.
- * @param pVolumeInc pointer to the float increment per output audio frame, set on return.
- * @return true if the volume has changed, false if volume is same.
- */
-static inline bool setVolumeRampVariables(float newVolume, int32_t ramp,
-        int16_t *pIntSetVolume, int32_t *pIntPrevVolume, int32_t *pIntVolumeInc,
-        float *pSetVolume, float *pPrevVolume, float *pVolumeInc) {
-    // check floating point volume to see if it is identical to the previously
-    // set volume.
-    // We do not use a tolerance here (and reject changes too small)
-    // as it may be confusing to use a different value than the one set.
-    // If the resulting volume is too small to ramp, it is a direct set of the volume.
-    if (newVolume == *pSetVolume) {
-        return false;
-    }
-    if (newVolume < 0) {
-        newVolume = 0; // should not have negative volumes
-    } else {
-        switch (fpclassify(newVolume)) {
-        case FP_SUBNORMAL:
-        case FP_NAN:
-            newVolume = 0;
-            break;
-        case FP_ZERO:
-            break; // zero volume is fine
-        case FP_INFINITE:
-            // Infinite volume could be handled consistently since
-            // floating point math saturates at infinities,
-            // but we limit volume to unity gain float.
-            // ramp = 0; break;
-            //
-            newVolume = AudioMixer::UNITY_GAIN_FLOAT;
-            break;
-        case FP_NORMAL:
-        default:
-            // Floating point does not have problems with overflow wrap
-            // that integer has.  However, we limit the volume to
-            // unity gain here.
-            // TODO: Revisit the volume limitation and perhaps parameterize.
-            if (newVolume > AudioMixer::UNITY_GAIN_FLOAT) {
-                newVolume = AudioMixer::UNITY_GAIN_FLOAT;
-            }
-            break;
-        }
-    }
-
-    // set floating point volume ramp
-    if (ramp != 0) {
-        // when the ramp completes, *pPrevVolume is set to *pSetVolume, so there
-        // is no computational mismatch; hence equality is checked here.
-        ALOGD_IF(*pPrevVolume != *pSetVolume, "previous float ramp hasn't finished,"
-                " prev:%f  set_to:%f", *pPrevVolume, *pSetVolume);
-        const float inc = (newVolume - *pPrevVolume) / ramp; // could be inf, nan, subnormal
-        const float maxv = max(newVolume, *pPrevVolume); // could be inf, cannot be nan, subnormal
-
-        if (isnormal(inc) // inc must be a normal number (no subnormals, infinite, nan)
-                && maxv + inc != maxv) { // inc must make forward progress
-            *pVolumeInc = inc;
-            // ramp is set now.
-            // Note: if newVolume is 0, then near the end of the ramp,
-            // it may be possible that the ramped volume may be subnormal or
-            // temporarily negative by a small amount or subnormal due to floating
-            // point inaccuracies.
-        } else {
-            ramp = 0; // ramp not allowed
-        }
-    }
-
-    // compute and check integer volume, no need to check negative values
-    // The integer volume is limited to "unity_gain" to avoid wrapping and other
-    // audio artifacts, so it never reaches the range limit of U4.28.
-    // We safely use signed 16 and 32 bit integers here.
-    const float scaledVolume = newVolume * AudioMixer::UNITY_GAIN_INT; // not neg, subnormal, nan
-    const int32_t intVolume = (scaledVolume >= (float)AudioMixer::UNITY_GAIN_INT) ?
-            AudioMixer::UNITY_GAIN_INT : (int32_t)scaledVolume;
-
-    // set integer volume ramp
-    if (ramp != 0) {
-        // integer volume is U4.12 (to use 16 bit multiplies), but ramping uses U4.28.
-        // when the ramp completes, *pIntPrevVolume is set to *pIntSetVolume << 16, so there
-        // is no computational mismatch; hence equality is checked here.
-        ALOGD_IF(*pIntPrevVolume != *pIntSetVolume << 16, "previous int ramp hasn't finished,"
-                " prev:%d  set_to:%d", *pIntPrevVolume, *pIntSetVolume << 16);
-        const int32_t inc = ((intVolume << 16) - *pIntPrevVolume) / ramp;
-
-        if (inc != 0) { // inc must make forward progress
-            *pIntVolumeInc = inc;
-        } else {
-            ramp = 0; // ramp not allowed
-        }
-    }
-
-    // if no ramp, or ramp not allowed, then clear float and integer increments
-    if (ramp == 0) {
-        *pVolumeInc = 0;
-        *pPrevVolume = newVolume;
-        *pIntVolumeInc = 0;
-        *pIntPrevVolume = intVolume << 16;
-    }
-    *pSetVolume = newVolume;
-    *pIntSetVolume = intVolume;
-    return true;
-}
-
-void AudioMixer::setParameter(int name, int target, int param, void *value)
-{
-    name -= TRACK0;
-    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
-    track_t& track = mState.tracks[name];
-
-    int valueInt = static_cast<int>(reinterpret_cast<uintptr_t>(value));
-    int32_t *valueBuf = reinterpret_cast<int32_t*>(value);
-
-    switch (target) {
-
-    case TRACK:
-        switch (param) {
-        case CHANNEL_MASK: {
-            const audio_channel_mask_t trackChannelMask =
-                static_cast<audio_channel_mask_t>(valueInt);
-            if (setChannelMasks(name, trackChannelMask, track.mMixerChannelMask)) {
-                ALOGV("setParameter(TRACK, CHANNEL_MASK, %x)", trackChannelMask);
-                invalidateState(1 << name);
-            }
-            } break;
-        case MAIN_BUFFER:
-            if (track.mainBuffer != valueBuf) {
-                track.mainBuffer = valueBuf;
-                ALOGV("setParameter(TRACK, MAIN_BUFFER, %p)", valueBuf);
-                invalidateState(1 << name);
-            }
-            break;
-        case AUX_BUFFER:
-            if (track.auxBuffer != valueBuf) {
-                track.auxBuffer = valueBuf;
-                ALOGV("setParameter(TRACK, AUX_BUFFER, %p)", valueBuf);
-                invalidateState(1 << name);
-            }
-            break;
-        case FORMAT: {
-            audio_format_t format = static_cast<audio_format_t>(valueInt);
-            if (track.mFormat != format) {
-                ALOG_ASSERT(audio_is_linear_pcm(format), "Invalid format %#x", format);
-                track.mFormat = format;
-                ALOGV("setParameter(TRACK, FORMAT, %#x)", format);
-                track.prepareForReformat();
-                invalidateState(1 << name);
-            }
-            } break;
-        // FIXME do we want to support setting the downmix type from AudioFlinger?
-        //         for a specific track? or per mixer?
-        /* case DOWNMIX_TYPE:
-            break          */
-        case MIXER_FORMAT: {
-            audio_format_t format = static_cast<audio_format_t>(valueInt);
-            if (track.mMixerFormat != format) {
-                track.mMixerFormat = format;
-                ALOGV("setParameter(TRACK, MIXER_FORMAT, %#x)", format);
-            }
-            } break;
-        case MIXER_CHANNEL_MASK: {
-            const audio_channel_mask_t mixerChannelMask =
-                    static_cast<audio_channel_mask_t>(valueInt);
-            if (setChannelMasks(name, track.channelMask, mixerChannelMask)) {
-                ALOGV("setParameter(TRACK, MIXER_CHANNEL_MASK, %#x)", mixerChannelMask);
-                invalidateState(1 << name);
-            }
-            } break;
-        default:
-            LOG_ALWAYS_FATAL("setParameter track: bad param %d", param);
-        }
-        break;
-
-    case RESAMPLE:
-        switch (param) {
-        case SAMPLE_RATE:
-            ALOG_ASSERT(valueInt > 0, "bad sample rate %d", valueInt);
-            if (track.setResampler(uint32_t(valueInt), mSampleRate)) {
-                ALOGV("setParameter(RESAMPLE, SAMPLE_RATE, %u)",
-                        uint32_t(valueInt));
-                invalidateState(1 << name);
-            }
-            break;
-        case RESET:
-            track.resetResampler();
-            invalidateState(1 << name);
-            break;
-        case REMOVE:
-            delete track.resampler;
-            track.resampler = NULL;
-            track.sampleRate = mSampleRate;
-            invalidateState(1 << name);
-            break;
-        default:
-            LOG_ALWAYS_FATAL("setParameter resample: bad param %d", param);
-        }
-        break;
-
-    case RAMP_VOLUME:
-    case VOLUME:
-        switch (param) {
-        case AUXLEVEL:
-            if (setVolumeRampVariables(*reinterpret_cast<float*>(value),
-                    target == RAMP_VOLUME ? mState.frameCount : 0,
-                    &track.auxLevel, &track.prevAuxLevel, &track.auxInc,
-                    &track.mAuxLevel, &track.mPrevAuxLevel, &track.mAuxInc)) {
-                ALOGV("setParameter(%s, AUXLEVEL: %04x)",
-                        target == VOLUME ? "VOLUME" : "RAMP_VOLUME", track.auxLevel);
-                invalidateState(1 << name);
-            }
-            break;
-        default:
-            if ((unsigned)param >= VOLUME0 && (unsigned)param < VOLUME0 + MAX_NUM_VOLUMES) {
-                if (setVolumeRampVariables(*reinterpret_cast<float*>(value),
-                        target == RAMP_VOLUME ? mState.frameCount : 0,
-                        &track.volume[param - VOLUME0], &track.prevVolume[param - VOLUME0],
-                        &track.volumeInc[param - VOLUME0],
-                        &track.mVolume[param - VOLUME0], &track.mPrevVolume[param - VOLUME0],
-                        &track.mVolumeInc[param - VOLUME0])) {
-                    ALOGV("setParameter(%s, VOLUME%d: %04x)",
-                            target == VOLUME ? "VOLUME" : "RAMP_VOLUME", param - VOLUME0,
-                                    track.volume[param - VOLUME0]);
-                    invalidateState(1 << name);
-                }
-            } else {
-                LOG_ALWAYS_FATAL("setParameter volume: bad param %d", param);
-            }
-        }
-        break;
-        case TIMESTRETCH:
-            switch (param) {
-            case PLAYBACK_RATE: {
-                const AudioPlaybackRate *playbackRate =
-                        reinterpret_cast<AudioPlaybackRate*>(value);
-                ALOGW_IF(!isAudioPlaybackRateValid(*playbackRate),
-                        "bad parameters speed %f, pitch %f",playbackRate->mSpeed,
-                        playbackRate->mPitch);
-                if (track.setPlaybackRate(*playbackRate)) {
-                    ALOGV("setParameter(TIMESTRETCH, PLAYBACK_RATE, STRETCH_MODE, FALLBACK_MODE "
-                            "%f %f %d %d",
-                            playbackRate->mSpeed,
-                            playbackRate->mPitch,
-                            playbackRate->mStretchMode,
-                            playbackRate->mFallbackMode);
-                    // invalidateState(1 << name);
-                }
-            } break;
-            default:
-                LOG_ALWAYS_FATAL("setParameter timestretch: bad param %d", param);
-            }
-            break;
-
-    default:
-        LOG_ALWAYS_FATAL("setParameter: bad target %d", target);
-    }
-}
-
-bool AudioMixer::track_t::setResampler(uint32_t trackSampleRate, uint32_t devSampleRate)
-{
-    if (trackSampleRate != devSampleRate || resampler != NULL) {
-        if (sampleRate != trackSampleRate) {
-            sampleRate = trackSampleRate;
-            if (resampler == NULL) {
-                ALOGV("Creating resampler from track %d Hz to device %d Hz",
-                        trackSampleRate, devSampleRate);
-                AudioResampler::src_quality quality;
-                // force lowest quality level resampler if use case isn't music or video
-                // FIXME this is flawed for dynamic sample rates, as we choose the resampler
-                // quality level based on the initial ratio, but that could change later.
-                // Should have a way to distinguish tracks with static ratios vs. dynamic ratios.
-                if (isMusicRate(trackSampleRate)) {
-                    quality = AudioResampler::DEFAULT_QUALITY;
-                } else {
-                    quality = AudioResampler::DYN_LOW_QUALITY;
-                }
-
-                // TODO: Remove MONO_HACK. Resampler sees #channels after the downmixer
-                // but if none exists, it is the channel count (1 for mono).
-                const int resamplerChannelCount = downmixerBufferProvider != NULL
-                        ? mMixerChannelCount : channelCount;
-                ALOGVV("Creating resampler:"
-                        " format(%#x) channels(%d) devSampleRate(%u) quality(%d)\n",
-                        mMixerInFormat, resamplerChannelCount, devSampleRate, quality);
-                resampler = AudioResampler::create(
-                        mMixerInFormat,
-                        resamplerChannelCount,
-                        devSampleRate, quality);
-            }
-            return true;
-        }
-    }
-    return false;
-}
-
-bool AudioMixer::track_t::setPlaybackRate(const AudioPlaybackRate &playbackRate)
-{
-    if ((mTimestretchBufferProvider == NULL &&
-            fabs(playbackRate.mSpeed - mPlaybackRate.mSpeed) < AUDIO_TIMESTRETCH_SPEED_MIN_DELTA &&
-            fabs(playbackRate.mPitch - mPlaybackRate.mPitch) < AUDIO_TIMESTRETCH_PITCH_MIN_DELTA) ||
-            isAudioPlaybackRateEqual(playbackRate, mPlaybackRate)) {
-        return false;
-    }
-    mPlaybackRate = playbackRate;
-    if (mTimestretchBufferProvider == NULL) {
-        // TODO: Remove MONO_HACK. Resampler sees #channels after the downmixer
-        // but if none exists, it is the channel count (1 for mono).
-        const int timestretchChannelCount = downmixerBufferProvider != NULL
-                ? mMixerChannelCount : channelCount;
-        mTimestretchBufferProvider = new TimestretchBufferProvider(timestretchChannelCount,
-                mMixerInFormat, sampleRate, playbackRate);
-        reconfigureBufferProviders();
-    } else {
-        reinterpret_cast<TimestretchBufferProvider*>(mTimestretchBufferProvider)
-                ->setPlaybackRate(playbackRate);
-    }
-    return true;
-}
-
-/* Checks to see if the volume ramp has completed and clears the increment
- * variables appropriately.
- *
- * FIXME: There is code to handle int/float ramp variable switchover should it not
- * complete within a mixer buffer processing call, but it is preferred to avoid switchover
- * due to precision issues.  The switchover code is included for legacy code purposes
- * and can be removed once the integer volume is removed.
- *
- * It is not sufficient to clear only the volumeInc integer variable because
- * if one channel requires ramping, all channels are ramped.
- *
- * There is a bit of duplicated code here, but it keeps backward compatibility.
- */
-inline void AudioMixer::track_t::adjustVolumeRamp(bool aux, bool useFloat)
-{
-    if (useFloat) {
-        for (uint32_t i = 0; i < MAX_NUM_VOLUMES; i++) {
-            if ((mVolumeInc[i] > 0 && mPrevVolume[i] + mVolumeInc[i] >= mVolume[i]) ||
-                     (mVolumeInc[i] < 0 && mPrevVolume[i] + mVolumeInc[i] <= mVolume[i])) {
-                volumeInc[i] = 0;
-                prevVolume[i] = volume[i] << 16;
-                mVolumeInc[i] = 0.;
-                mPrevVolume[i] = mVolume[i];
-            } else {
-                //ALOGV("ramp: %f %f %f", mVolume[i], mPrevVolume[i], mVolumeInc[i]);
-                prevVolume[i] = u4_28_from_float(mPrevVolume[i]);
-            }
-        }
-    } else {
-        for (uint32_t i = 0; i < MAX_NUM_VOLUMES; i++) {
-            if (((volumeInc[i]>0) && (((prevVolume[i]+volumeInc[i])>>16) >= volume[i])) ||
-                    ((volumeInc[i]<0) && (((prevVolume[i]+volumeInc[i])>>16) <= volume[i]))) {
-                volumeInc[i] = 0;
-                prevVolume[i] = volume[i] << 16;
-                mVolumeInc[i] = 0.;
-                mPrevVolume[i] = mVolume[i];
-            } else {
-                //ALOGV("ramp: %d %d %d", volume[i] << 16, prevVolume[i], volumeInc[i]);
-                mPrevVolume[i]  = float_from_u4_28(prevVolume[i]);
-            }
-        }
-    }
-    /* TODO: aux is always integer regardless of output buffer type */
-    if (aux) {
-        if (((auxInc>0) && (((prevAuxLevel+auxInc)>>16) >= auxLevel)) ||
-                ((auxInc<0) && (((prevAuxLevel+auxInc)>>16) <= auxLevel))) {
-            auxInc = 0;
-            prevAuxLevel = auxLevel << 16;
-            mAuxInc = 0.;
-            mPrevAuxLevel = mAuxLevel;
-        } else {
-            //ALOGV("aux ramp: %d %d %d", auxLevel << 16, prevAuxLevel, auxInc);
-        }
-    }
-}
-
-size_t AudioMixer::getUnreleasedFrames(int name) const
-{
-    name -= TRACK0;
-    if (uint32_t(name) < MAX_NUM_TRACKS) {
-        return mState.tracks[name].getUnreleasedFrames();
-    }
-    return 0;
-}
-
-void AudioMixer::setBufferProvider(int name, AudioBufferProvider* bufferProvider)
-{
-    name -= TRACK0;
-    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
-
-    if (mState.tracks[name].mInputBufferProvider == bufferProvider) {
-        return; // don't reset any buffer providers if identical.
-    }
-    if (mState.tracks[name].mReformatBufferProvider != NULL) {
-        mState.tracks[name].mReformatBufferProvider->reset();
-    } else if (mState.tracks[name].downmixerBufferProvider != NULL) {
-        mState.tracks[name].downmixerBufferProvider->reset();
-    } else if (mState.tracks[name].mPostDownmixReformatBufferProvider != NULL) {
-        mState.tracks[name].mPostDownmixReformatBufferProvider->reset();
-    } else if (mState.tracks[name].mTimestretchBufferProvider != NULL) {
-        mState.tracks[name].mTimestretchBufferProvider->reset();
-    }
-
-    mState.tracks[name].mInputBufferProvider = bufferProvider;
-    mState.tracks[name].reconfigureBufferProviders();
-}
-
-
-void AudioMixer::process()
-{
-    mState.hook(&mState);
-}
-
-
-void AudioMixer::process__validate(state_t* state)
-{
-    ALOGW_IF(!state->needsChanged,
-        "in process__validate() but nothing's invalid");
-
-    uint32_t changed = state->needsChanged;
-    state->needsChanged = 0; // clear the validation flag
-
-    // recompute which tracks are enabled / disabled
-    uint32_t enabled = 0;
-    uint32_t disabled = 0;
-    while (changed) {
-        const int i = 31 - __builtin_clz(changed);
-        const uint32_t mask = 1<<i;
-        changed &= ~mask;
-        track_t& t = state->tracks[i];
-        (t.enabled ? enabled : disabled) |= mask;
-    }
-    state->enabledTracks &= ~disabled;
-    state->enabledTracks |=  enabled;
-
-    // compute everything we need...
-    int countActiveTracks = 0;
-    // TODO: fix all16BitsStereNoResample logic to
-    // either properly handle muted tracks (it should ignore them)
-    // or remove altogether as an obsolete optimization.
-    bool all16BitsStereoNoResample = true;
-    bool resampling = false;
-    bool volumeRamp = false;
-    uint32_t en = state->enabledTracks;
-    while (en) {
-        const int i = 31 - __builtin_clz(en);
-        en &= ~(1<<i);
-
-        countActiveTracks++;
-        track_t& t = state->tracks[i];
-        uint32_t n = 0;
-        // FIXME can overflow (mask is only 3 bits)
-        n |= NEEDS_CHANNEL_1 + t.channelCount - 1;
-        if (t.doesResample()) {
-            n |= NEEDS_RESAMPLE;
-        }
-        if (t.auxLevel != 0 && t.auxBuffer != NULL) {
-            n |= NEEDS_AUX;
-        }
-
-        if (t.volumeInc[0]|t.volumeInc[1]) {
-            volumeRamp = true;
-        } else if (!t.doesResample() && t.volumeRL == 0) {
-            n |= NEEDS_MUTE;
-        }
-        t.needs = n;
-
-        if (n & NEEDS_MUTE) {
-            t.hook = track__nop;
-        } else {
-            if (n & NEEDS_AUX) {
-                all16BitsStereoNoResample = false;
-            }
-            if (n & NEEDS_RESAMPLE) {
-                all16BitsStereoNoResample = false;
-                resampling = true;
-                t.hook = getTrackHook(TRACKTYPE_RESAMPLE, t.mMixerChannelCount,
-                        t.mMixerInFormat, t.mMixerFormat);
-                ALOGV_IF((n & NEEDS_CHANNEL_COUNT__MASK) > NEEDS_CHANNEL_2,
-                        "Track %d needs downmix + resample", i);
-            } else {
-                if ((n & NEEDS_CHANNEL_COUNT__MASK) == NEEDS_CHANNEL_1){
-                    t.hook = getTrackHook(
-                            (t.mMixerChannelMask == AUDIO_CHANNEL_OUT_STEREO  // TODO: MONO_HACK
-                                    && t.channelMask == AUDIO_CHANNEL_OUT_MONO)
-                                ? TRACKTYPE_NORESAMPLEMONO : TRACKTYPE_NORESAMPLE,
-                            t.mMixerChannelCount,
-                            t.mMixerInFormat, t.mMixerFormat);
-                    all16BitsStereoNoResample = false;
-                }
-                if ((n & NEEDS_CHANNEL_COUNT__MASK) >= NEEDS_CHANNEL_2){
-                    t.hook = getTrackHook(TRACKTYPE_NORESAMPLE, t.mMixerChannelCount,
-                            t.mMixerInFormat, t.mMixerFormat);
-                    ALOGV_IF((n & NEEDS_CHANNEL_COUNT__MASK) > NEEDS_CHANNEL_2,
-                            "Track %d needs downmix", i);
-                }
-            }
-        }
-    }
-
-    // select the processing hooks
-    state->hook = process__nop;
-    if (countActiveTracks > 0) {
-        if (resampling) {
-            if (!state->outputTemp) {
-                state->outputTemp = new int32_t[MAX_NUM_CHANNELS * state->frameCount];
-            }
-            if (!state->resampleTemp) {
-                state->resampleTemp = new int32_t[MAX_NUM_CHANNELS * state->frameCount];
-            }
-            state->hook = process__genericResampling;
-        } else {
-            if (state->outputTemp) {
-                delete [] state->outputTemp;
-                state->outputTemp = NULL;
-            }
-            if (state->resampleTemp) {
-                delete [] state->resampleTemp;
-                state->resampleTemp = NULL;
-            }
-            state->hook = process__genericNoResampling;
-            if (all16BitsStereoNoResample && !volumeRamp) {
-                if (countActiveTracks == 1) {
-                    const int i = 31 - __builtin_clz(state->enabledTracks);
-                    track_t& t = state->tracks[i];
-                    if ((t.needs & NEEDS_MUTE) == 0) {
-                        // The check prevents a muted track from acquiring a process hook.
-                        //
-                        // This is dangerous if the track is MONO as that requires
-                        // special case handling due to implicit channel duplication.
-                        // Stereo or Multichannel should actually be fine here.
-                        state->hook = getProcessHook(PROCESSTYPE_NORESAMPLEONETRACK,
-                                t.mMixerChannelCount, t.mMixerInFormat, t.mMixerFormat);
-                    }
-                }
-            }
-        }
-    }
-
-    ALOGV("mixer configuration change: %d activeTracks (%08x) "
-        "all16BitsStereoNoResample=%d, resampling=%d, volumeRamp=%d",
-        countActiveTracks, state->enabledTracks,
-        all16BitsStereoNoResample, resampling, volumeRamp);
-
-   state->hook(state);
-
-    // Now that the volume ramp has been done, set optimal state and
-    // track hooks for subsequent mixer process
-    if (countActiveTracks > 0) {
-        bool allMuted = true;
-        uint32_t en = state->enabledTracks;
-        while (en) {
-            const int i = 31 - __builtin_clz(en);
-            en &= ~(1<<i);
-            track_t& t = state->tracks[i];
-            if (!t.doesResample() && t.volumeRL == 0) {
-                t.needs |= NEEDS_MUTE;
-                t.hook = track__nop;
-            } else {
-                allMuted = false;
-            }
-        }
-        if (allMuted) {
-            state->hook = process__nop;
-        } else if (all16BitsStereoNoResample) {
-            if (countActiveTracks == 1) {
-                const int i = 31 - __builtin_clz(state->enabledTracks);
-                track_t& t = state->tracks[i];
-                // Muted single tracks handled by allMuted above.
-                state->hook = getProcessHook(PROCESSTYPE_NORESAMPLEONETRACK,
-                        t.mMixerChannelCount, t.mMixerInFormat, t.mMixerFormat);
-            }
-        }
-    }
-}
-
-
-void AudioMixer::track__genericResample(track_t* t, int32_t* out, size_t outFrameCount,
-        int32_t* temp, int32_t* aux)
-{
-    ALOGVV("track__genericResample\n");
-    t->resampler->setSampleRate(t->sampleRate);
-
-    // ramp gain - resample to temp buffer and scale/mix in 2nd step
-    if (aux != NULL) {
-        // always resample with unity gain when sending to auxiliary buffer to be able
-        // to apply send level after resampling
-        t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
-        memset(temp, 0, outFrameCount * t->mMixerChannelCount * sizeof(int32_t));
-        t->resampler->resample(temp, outFrameCount, t->bufferProvider);
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
-            volumeRampStereo(t, out, outFrameCount, temp, aux);
-        } else {
-            volumeStereo(t, out, outFrameCount, temp, aux);
-        }
-    } else {
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
-            t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
-            memset(temp, 0, outFrameCount * MAX_NUM_CHANNELS * sizeof(int32_t));
-            t->resampler->resample(temp, outFrameCount, t->bufferProvider);
-            volumeRampStereo(t, out, outFrameCount, temp, aux);
-        }
-
-        // constant gain
-        else {
-            t->resampler->setVolume(t->mVolume[0], t->mVolume[1]);
-            t->resampler->resample(out, outFrameCount, t->bufferProvider);
-        }
-    }
-}
-
-void AudioMixer::track__nop(track_t* t __unused, int32_t* out __unused,
-        size_t outFrameCount __unused, int32_t* temp __unused, int32_t* aux __unused)
-{
-}
-
-void AudioMixer::volumeRampStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
-        int32_t* aux)
-{
-    int32_t vl = t->prevVolume[0];
-    int32_t vr = t->prevVolume[1];
-    const int32_t vlInc = t->volumeInc[0];
-    const int32_t vrInc = t->volumeInc[1];
-
-    //ALOGD("[0] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
-    //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
-    //       (vl + vlInc*frameCount)/65536.0f, frameCount);
-
-    // ramp volume
-    if (CC_UNLIKELY(aux != NULL)) {
-        int32_t va = t->prevAuxLevel;
-        const int32_t vaInc = t->auxInc;
-        int32_t l;
-        int32_t r;
-
-        do {
-            l = (*temp++ >> 12);
-            r = (*temp++ >> 12);
-            *out++ += (vl >> 16) * l;
-            *out++ += (vr >> 16) * r;
-            *aux++ += (va >> 17) * (l + r);
-            vl += vlInc;
-            vr += vrInc;
-            va += vaInc;
-        } while (--frameCount);
-        t->prevAuxLevel = va;
-    } else {
-        do {
-            *out++ += (vl >> 16) * (*temp++ >> 12);
-            *out++ += (vr >> 16) * (*temp++ >> 12);
-            vl += vlInc;
-            vr += vrInc;
-        } while (--frameCount);
-    }
-    t->prevVolume[0] = vl;
-    t->prevVolume[1] = vr;
-    t->adjustVolumeRamp(aux != NULL);
-}
-
-void AudioMixer::volumeStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
-        int32_t* aux)
-{
-    const int16_t vl = t->volume[0];
-    const int16_t vr = t->volume[1];
-
-    if (CC_UNLIKELY(aux != NULL)) {
-        const int16_t va = t->auxLevel;
-        do {
-            int16_t l = (int16_t)(*temp++ >> 12);
-            int16_t r = (int16_t)(*temp++ >> 12);
-            out[0] = mulAdd(l, vl, out[0]);
-            int16_t a = (int16_t)(((int32_t)l + r) >> 1);
-            out[1] = mulAdd(r, vr, out[1]);
-            out += 2;
-            aux[0] = mulAdd(a, va, aux[0]);
-            aux++;
-        } while (--frameCount);
-    } else {
-        do {
-            int16_t l = (int16_t)(*temp++ >> 12);
-            int16_t r = (int16_t)(*temp++ >> 12);
-            out[0] = mulAdd(l, vl, out[0]);
-            out[1] = mulAdd(r, vr, out[1]);
-            out += 2;
-        } while (--frameCount);
-    }
-}
-
-void AudioMixer::track__16BitsStereo(track_t* t, int32_t* out, size_t frameCount,
-        int32_t* temp __unused, int32_t* aux)
-{
-    ALOGVV("track__16BitsStereo\n");
-    const int16_t *in = static_cast<const int16_t *>(t->in);
-
-    if (CC_UNLIKELY(aux != NULL)) {
-        int32_t l;
-        int32_t r;
-        // ramp gain
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
-            int32_t vl = t->prevVolume[0];
-            int32_t vr = t->prevVolume[1];
-            int32_t va = t->prevAuxLevel;
-            const int32_t vlInc = t->volumeInc[0];
-            const int32_t vrInc = t->volumeInc[1];
-            const int32_t vaInc = t->auxInc;
-            // ALOGD("[1] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
-            //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
-            //        (vl + vlInc*frameCount)/65536.0f, frameCount);
-
-            do {
-                l = (int32_t)*in++;
-                r = (int32_t)*in++;
-                *out++ += (vl >> 16) * l;
-                *out++ += (vr >> 16) * r;
-                *aux++ += (va >> 17) * (l + r);
-                vl += vlInc;
-                vr += vrInc;
-                va += vaInc;
-            } while (--frameCount);
-
-            t->prevVolume[0] = vl;
-            t->prevVolume[1] = vr;
-            t->prevAuxLevel = va;
-            t->adjustVolumeRamp(true);
-        }
-
-        // constant gain
-        else {
-            const uint32_t vrl = t->volumeRL;
-            const int16_t va = (int16_t)t->auxLevel;
-            do {
-                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
-                int16_t a = (int16_t)(((int32_t)in[0] + in[1]) >> 1);
-                in += 2;
-                out[0] = mulAddRL(1, rl, vrl, out[0]);
-                out[1] = mulAddRL(0, rl, vrl, out[1]);
-                out += 2;
-                aux[0] = mulAdd(a, va, aux[0]);
-                aux++;
-            } while (--frameCount);
-        }
-    } else {
-        // ramp gain
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
-            int32_t vl = t->prevVolume[0];
-            int32_t vr = t->prevVolume[1];
-            const int32_t vlInc = t->volumeInc[0];
-            const int32_t vrInc = t->volumeInc[1];
-
-            // ALOGD("[1] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
-            //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
-            //        (vl + vlInc*frameCount)/65536.0f, frameCount);
-
-            do {
-                *out++ += (vl >> 16) * (int32_t) *in++;
-                *out++ += (vr >> 16) * (int32_t) *in++;
-                vl += vlInc;
-                vr += vrInc;
-            } while (--frameCount);
-
-            t->prevVolume[0] = vl;
-            t->prevVolume[1] = vr;
-            t->adjustVolumeRamp(false);
-        }
-
-        // constant gain
-        else {
-            const uint32_t vrl = t->volumeRL;
-            do {
-                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
-                in += 2;
-                out[0] = mulAddRL(1, rl, vrl, out[0]);
-                out[1] = mulAddRL(0, rl, vrl, out[1]);
-                out += 2;
-            } while (--frameCount);
-        }
-    }
-    t->in = in;
-}
-
-void AudioMixer::track__16BitsMono(track_t* t, int32_t* out, size_t frameCount,
-        int32_t* temp __unused, int32_t* aux)
-{
-    ALOGVV("track__16BitsMono\n");
-    const int16_t *in = static_cast<int16_t const *>(t->in);
-
-    if (CC_UNLIKELY(aux != NULL)) {
-        // ramp gain
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
-            int32_t vl = t->prevVolume[0];
-            int32_t vr = t->prevVolume[1];
-            int32_t va = t->prevAuxLevel;
-            const int32_t vlInc = t->volumeInc[0];
-            const int32_t vrInc = t->volumeInc[1];
-            const int32_t vaInc = t->auxInc;
-
-            // ALOGD("[2] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
-            //         t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
-            //         (vl + vlInc*frameCount)/65536.0f, frameCount);
-
-            do {
-                int32_t l = *in++;
-                *out++ += (vl >> 16) * l;
-                *out++ += (vr >> 16) * l;
-                *aux++ += (va >> 16) * l;
-                vl += vlInc;
-                vr += vrInc;
-                va += vaInc;
-            } while (--frameCount);
-
-            t->prevVolume[0] = vl;
-            t->prevVolume[1] = vr;
-            t->prevAuxLevel = va;
-            t->adjustVolumeRamp(true);
-        }
-        // constant gain
-        else {
-            const int16_t vl = t->volume[0];
-            const int16_t vr = t->volume[1];
-            const int16_t va = (int16_t)t->auxLevel;
-            do {
-                int16_t l = *in++;
-                out[0] = mulAdd(l, vl, out[0]);
-                out[1] = mulAdd(l, vr, out[1]);
-                out += 2;
-                aux[0] = mulAdd(l, va, aux[0]);
-                aux++;
-            } while (--frameCount);
-        }
-    } else {
-        // ramp gain
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
-            int32_t vl = t->prevVolume[0];
-            int32_t vr = t->prevVolume[1];
-            const int32_t vlInc = t->volumeInc[0];
-            const int32_t vrInc = t->volumeInc[1];
-
-            // ALOGD("[2] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
-            //         t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
-            //         (vl + vlInc*frameCount)/65536.0f, frameCount);
-
-            do {
-                int32_t l = *in++;
-                *out++ += (vl >> 16) * l;
-                *out++ += (vr >> 16) * l;
-                vl += vlInc;
-                vr += vrInc;
-            } while (--frameCount);
-
-            t->prevVolume[0] = vl;
-            t->prevVolume[1] = vr;
-            t->adjustVolumeRamp(false);
-        }
-        // constant gain
-        else {
-            const int16_t vl = t->volume[0];
-            const int16_t vr = t->volume[1];
-            do {
-                int16_t l = *in++;
-                out[0] = mulAdd(l, vl, out[0]);
-                out[1] = mulAdd(l, vr, out[1]);
-                out += 2;
-            } while (--frameCount);
-        }
-    }
-    t->in = in;
-}
-
-// no-op case
-void AudioMixer::process__nop(state_t* state)
-{
-    ALOGVV("process__nop\n");
-    uint32_t e0 = state->enabledTracks;
-    while (e0) {
-        // process by group of tracks with same output buffer to
-        // avoid multiple memset() on same buffer
-        uint32_t e1 = e0, e2 = e0;
-        int i = 31 - __builtin_clz(e1);
-        {
-            track_t& t1 = state->tracks[i];
-            e2 &= ~(1<<i);
-            while (e2) {
-                i = 31 - __builtin_clz(e2);
-                e2 &= ~(1<<i);
-                track_t& t2 = state->tracks[i];
-                if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
-                    e1 &= ~(1<<i);
-                }
-            }
-            e0 &= ~(e1);
-
-            memset(t1.mainBuffer, 0, state->frameCount * t1.mMixerChannelCount
-                    * audio_bytes_per_sample(t1.mMixerFormat));
-        }
-
-        while (e1) {
-            i = 31 - __builtin_clz(e1);
-            e1 &= ~(1<<i);
-            {
-                track_t& t3 = state->tracks[i];
-                size_t outFrames = state->frameCount;
-                while (outFrames) {
-                    t3.buffer.frameCount = outFrames;
-                    t3.bufferProvider->getNextBuffer(&t3.buffer);
-                    if (t3.buffer.raw == NULL) break;
-                    outFrames -= t3.buffer.frameCount;
-                    t3.bufferProvider->releaseBuffer(&t3.buffer);
-                }
-            }
-        }
-    }
-}
-
-// generic code without resampling
-void AudioMixer::process__genericNoResampling(state_t* state)
-{
-    ALOGVV("process__genericNoResampling\n");
-    int32_t outTemp[BLOCKSIZE * MAX_NUM_CHANNELS] __attribute__((aligned(32)));
-
-    // acquire each track's buffer
-    uint32_t enabledTracks = state->enabledTracks;
-    uint32_t e0 = enabledTracks;
-    while (e0) {
-        const int i = 31 - __builtin_clz(e0);
-        e0 &= ~(1<<i);
-        track_t& t = state->tracks[i];
-        t.buffer.frameCount = state->frameCount;
-        t.bufferProvider->getNextBuffer(&t.buffer);
-        t.frameCount = t.buffer.frameCount;
-        t.in = t.buffer.raw;
-    }
-
-    e0 = enabledTracks;
-    while (e0) {
-        // process by group of tracks with same output buffer to
-        // optimize cache use
-        uint32_t e1 = e0, e2 = e0;
-        int j = 31 - __builtin_clz(e1);
-        track_t& t1 = state->tracks[j];
-        e2 &= ~(1<<j);
-        while (e2) {
-            j = 31 - __builtin_clz(e2);
-            e2 &= ~(1<<j);
-            track_t& t2 = state->tracks[j];
-            if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
-                e1 &= ~(1<<j);
-            }
-        }
-        e0 &= ~(e1);
-        // this assumes output 16 bits stereo, no resampling
-        int32_t *out = t1.mainBuffer;
-        size_t numFrames = 0;
-        do {
-            memset(outTemp, 0, sizeof(outTemp));
-            e2 = e1;
-            while (e2) {
-                const int i = 31 - __builtin_clz(e2);
-                e2 &= ~(1<<i);
-                track_t& t = state->tracks[i];
-                size_t outFrames = BLOCKSIZE;
-                int32_t *aux = NULL;
-                if (CC_UNLIKELY(t.needs & NEEDS_AUX)) {
-                    aux = t.auxBuffer + numFrames;
-                }
-                while (outFrames) {
-                    // t.in == NULL can happen if the track was flushed just after having
-                    // been enabled for mixing.
-                   if (t.in == NULL) {
-                        enabledTracks &= ~(1<<i);
-                        e1 &= ~(1<<i);
-                        break;
-                    }
-                    size_t inFrames = (t.frameCount > outFrames)?outFrames:t.frameCount;
-                    if (inFrames > 0) {
-                        t.hook(&t, outTemp + (BLOCKSIZE - outFrames) * t.mMixerChannelCount,
-                                inFrames, state->resampleTemp, aux);
-                        t.frameCount -= inFrames;
-                        outFrames -= inFrames;
-                        if (CC_UNLIKELY(aux != NULL)) {
-                            aux += inFrames;
-                        }
-                    }
-                    if (t.frameCount == 0 && outFrames) {
-                        t.bufferProvider->releaseBuffer(&t.buffer);
-                        t.buffer.frameCount = (state->frameCount - numFrames) -
-                                (BLOCKSIZE - outFrames);
-                        t.bufferProvider->getNextBuffer(&t.buffer);
-                        t.in = t.buffer.raw;
-                        if (t.in == NULL) {
-                            enabledTracks &= ~(1<<i);
-                            e1 &= ~(1<<i);
-                            break;
-                        }
-                        t.frameCount = t.buffer.frameCount;
-                    }
-                }
-            }
-
-            convertMixerFormat(out, t1.mMixerFormat, outTemp, t1.mMixerInFormat,
-                    BLOCKSIZE * t1.mMixerChannelCount);
-            // TODO: fix ugly casting due to choice of out pointer type
-            out = reinterpret_cast<int32_t*>((uint8_t*)out
-                    + BLOCKSIZE * t1.mMixerChannelCount
-                        * audio_bytes_per_sample(t1.mMixerFormat));
-            numFrames += BLOCKSIZE;
-        } while (numFrames < state->frameCount);
-    }
-
-    // release each track's buffer
-    e0 = enabledTracks;
-    while (e0) {
-        const int i = 31 - __builtin_clz(e0);
-        e0 &= ~(1<<i);
-        track_t& t = state->tracks[i];
-        t.bufferProvider->releaseBuffer(&t.buffer);
-    }
-}
-
-
-// generic code with resampling
-void AudioMixer::process__genericResampling(state_t* state)
-{
-    ALOGVV("process__genericResampling\n");
-    // this const just means that local variable outTemp doesn't change
-    int32_t* const outTemp = state->outputTemp;
-    size_t numFrames = state->frameCount;
-
-    uint32_t e0 = state->enabledTracks;
-    while (e0) {
-        // process by group of tracks with same output buffer
-        // to optimize cache use
-        uint32_t e1 = e0, e2 = e0;
-        int j = 31 - __builtin_clz(e1);
-        track_t& t1 = state->tracks[j];
-        e2 &= ~(1<<j);
-        while (e2) {
-            j = 31 - __builtin_clz(e2);
-            e2 &= ~(1<<j);
-            track_t& t2 = state->tracks[j];
-            if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
-                e1 &= ~(1<<j);
-            }
-        }
-        e0 &= ~(e1);
-        int32_t *out = t1.mainBuffer;
-        memset(outTemp, 0, sizeof(*outTemp) * t1.mMixerChannelCount * state->frameCount);
-        while (e1) {
-            const int i = 31 - __builtin_clz(e1);
-            e1 &= ~(1<<i);
-            track_t& t = state->tracks[i];
-            int32_t *aux = NULL;
-            if (CC_UNLIKELY(t.needs & NEEDS_AUX)) {
-                aux = t.auxBuffer;
-            }
-
-            // this is a little goofy, on the resampling case we don't
-            // acquire/release the buffers because it's done by
-            // the resampler.
-            if (t.needs & NEEDS_RESAMPLE) {
-                t.hook(&t, outTemp, numFrames, state->resampleTemp, aux);
-            } else {
-
-                size_t outFrames = 0;
-
-                while (outFrames < numFrames) {
-                    t.buffer.frameCount = numFrames - outFrames;
-                    t.bufferProvider->getNextBuffer(&t.buffer);
-                    t.in = t.buffer.raw;
-                    // t.in == NULL can happen if the track was flushed just after having
-                    // been enabled for mixing.
-                    if (t.in == NULL) break;
-
-                    if (CC_UNLIKELY(aux != NULL)) {
-                        aux += outFrames;
-                    }
-                    t.hook(&t, outTemp + outFrames * t.mMixerChannelCount, t.buffer.frameCount,
-                            state->resampleTemp, aux);
-                    outFrames += t.buffer.frameCount;
-                    t.bufferProvider->releaseBuffer(&t.buffer);
-                }
-            }
-        }
-        convertMixerFormat(out, t1.mMixerFormat,
-                outTemp, t1.mMixerInFormat, numFrames * t1.mMixerChannelCount);
-    }
-}
-
-// one track, 16 bits stereo without resampling is the most common case
-void AudioMixer::process__OneTrack16BitsStereoNoResampling(state_t* state)
-{
-    ALOGVV("process__OneTrack16BitsStereoNoResampling\n");
-    // This method is only called when state->enabledTracks has exactly
-    // one bit set.  The asserts below would verify this, but are commented out
-    // since the whole point of this method is to optimize performance.
-    //ALOG_ASSERT(0 != state->enabledTracks, "no tracks enabled");
-    const int i = 31 - __builtin_clz(state->enabledTracks);
-    //ALOG_ASSERT((1 << i) == state->enabledTracks, "more than 1 track enabled");
-    const track_t& t = state->tracks[i];
-
-    AudioBufferProvider::Buffer& b(t.buffer);
-
-    int32_t* out = t.mainBuffer;
-    float *fout = reinterpret_cast<float*>(out);
-    size_t numFrames = state->frameCount;
-
-    const int16_t vl = t.volume[0];
-    const int16_t vr = t.volume[1];
-    const uint32_t vrl = t.volumeRL;
-    while (numFrames) {
-        b.frameCount = numFrames;
-        t.bufferProvider->getNextBuffer(&b);
-        const int16_t *in = b.i16;
-
-        // in == NULL can happen if the track was flushed just after having
-        // been enabled for mixing.
-        if (in == NULL || (((uintptr_t)in) & 3)) {
-            memset(out, 0, numFrames
-                    * t.mMixerChannelCount * audio_bytes_per_sample(t.mMixerFormat));
-            ALOGE_IF((((uintptr_t)in) & 3),
-                    "process__OneTrack16BitsStereoNoResampling: misaligned buffer"
-                    " %p track %d, channels %d, needs %08x, volume %08x vfl %f vfr %f",
-                    in, i, t.channelCount, t.needs, vrl, t.mVolume[0], t.mVolume[1]);
-            return;
-        }
-        size_t outFrames = b.frameCount;
-
-        switch (t.mMixerFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            do {
-                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
-                in += 2;
-                int32_t l = mulRL(1, rl, vrl);
-                int32_t r = mulRL(0, rl, vrl);
-                *fout++ = float_from_q4_27(l);
-                *fout++ = float_from_q4_27(r);
-                // Note: In case of later int16_t sink output,
-                // conversion and clamping is done by memcpy_to_i16_from_float().
-            } while (--outFrames);
-            break;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            if (CC_UNLIKELY(uint32_t(vl) > UNITY_GAIN_INT || uint32_t(vr) > UNITY_GAIN_INT)) {
-                // volume is boosted, so we might need to clamp even though
-                // we process only one track.
-                do {
-                    uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
-                    in += 2;
-                    int32_t l = mulRL(1, rl, vrl) >> 12;
-                    int32_t r = mulRL(0, rl, vrl) >> 12;
-                    // clamping...
-                    l = clamp16(l);
-                    r = clamp16(r);
-                    *out++ = (r<<16) | (l & 0xFFFF);
-                } while (--outFrames);
-            } else {
-                do {
-                    uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
-                    in += 2;
-                    int32_t l = mulRL(1, rl, vrl) >> 12;
-                    int32_t r = mulRL(0, rl, vrl) >> 12;
-                    *out++ = (r<<16) | (l & 0xFFFF);
-                } while (--outFrames);
-            }
-            break;
-        default:
-            LOG_ALWAYS_FATAL("bad mixer format: %d", t.mMixerFormat);
-        }
-        numFrames -= b.frameCount;
-        t.bufferProvider->releaseBuffer(&b);
-    }
-}
-
-/*static*/ pthread_once_t AudioMixer::sOnceControl = PTHREAD_ONCE_INIT;
-
-/*static*/ void AudioMixer::sInitRoutine()
-{
-    DownmixerBufferProvider::init(); // for the downmixer
-}
-
-/* TODO: consider whether this level of optimization is necessary.
- * Perhaps just stick with a single for loop.
- */
-
-// Needs to derive a compile time constant (constexpr).  Could be targeted to go
-// to a MONOVOL mixtype based on MAX_NUM_VOLUMES, but that's an unnecessary complication.
-#define MIXTYPE_MONOVOL(mixtype) (mixtype == MIXTYPE_MULTI ? MIXTYPE_MULTI_MONOVOL : \
-        mixtype == MIXTYPE_MULTI_SAVEONLY ? MIXTYPE_MULTI_SAVEONLY_MONOVOL : mixtype)
-
-/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE,
-        typename TO, typename TI, typename TV, typename TA, typename TAV>
-static void volumeRampMulti(uint32_t channels, TO* out, size_t frameCount,
-        const TI* in, TA* aux, TV *vol, const TV *volinc, TAV *vola, TAV volainc)
-{
-    switch (channels) {
-    case 1:
-        volumeRampMulti<MIXTYPE, 1>(out, frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 2:
-        volumeRampMulti<MIXTYPE, 2>(out, frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 3:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 3>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 4:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 4>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 5:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 5>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 6:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 6>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 7:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 7>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 8:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 8>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    }
-}
-
-/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE,
-        typename TO, typename TI, typename TV, typename TA, typename TAV>
-static void volumeMulti(uint32_t channels, TO* out, size_t frameCount,
-        const TI* in, TA* aux, const TV *vol, TAV vola)
-{
-    switch (channels) {
-    case 1:
-        volumeMulti<MIXTYPE, 1>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 2:
-        volumeMulti<MIXTYPE, 2>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 3:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 3>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 4:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 4>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 5:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 5>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 6:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 6>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 7:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 7>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 8:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 8>(out, frameCount, in, aux, vol, vola);
-        break;
-    }
-}
-
-/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * USEFLOATVOL (set to true if float volume is used)
- * ADJUSTVOL   (set to true if volume ramp parameters needs adjustment afterwards)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE, bool USEFLOATVOL, bool ADJUSTVOL,
-    typename TO, typename TI, typename TA>
-void AudioMixer::volumeMix(TO *out, size_t outFrames,
-        const TI *in, TA *aux, bool ramp, AudioMixer::track_t *t)
-{
-    if (USEFLOATVOL) {
-        if (ramp) {
-            volumeRampMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
-                    t->mPrevVolume, t->mVolumeInc, &t->prevAuxLevel, t->auxInc);
-            if (ADJUSTVOL) {
-                t->adjustVolumeRamp(aux != NULL, true);
-            }
-        } else {
-            volumeMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
-                    t->mVolume, t->auxLevel);
-        }
-    } else {
-        if (ramp) {
-            volumeRampMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
-                    t->prevVolume, t->volumeInc, &t->prevAuxLevel, t->auxInc);
-            if (ADJUSTVOL) {
-                t->adjustVolumeRamp(aux != NULL);
-            }
-        } else {
-            volumeMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
-                    t->volume, t->auxLevel);
-        }
-    }
-}
-
-/* This process hook is called when there is a single track without
- * aux buffer, volume ramp, or resampling.
- * TODO: Update the hook selection: this can properly handle aux and ramp.
- *
- * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE, typename TO, typename TI, typename TA>
-void AudioMixer::process_NoResampleOneTrack(state_t* state)
-{
-    ALOGVV("process_NoResampleOneTrack\n");
-    // CLZ is faster than CTZ on ARM, though really not sure if true after 31 - clz.
-    const int i = 31 - __builtin_clz(state->enabledTracks);
-    ALOG_ASSERT((1 << i) == state->enabledTracks, "more than 1 track enabled");
-    track_t *t = &state->tracks[i];
-    const uint32_t channels = t->mMixerChannelCount;
-    TO* out = reinterpret_cast<TO*>(t->mainBuffer);
-    TA* aux = reinterpret_cast<TA*>(t->auxBuffer);
-    const bool ramp = t->needsRamp();
-
-    for (size_t numFrames = state->frameCount; numFrames; ) {
-        AudioBufferProvider::Buffer& b(t->buffer);
-        // get input buffer
-        b.frameCount = numFrames;
-        t->bufferProvider->getNextBuffer(&b);
-        const TI *in = reinterpret_cast<TI*>(b.raw);
-
-        // in == NULL can happen if the track was flushed just after having
-        // been enabled for mixing.
-        if (in == NULL || (((uintptr_t)in) & 3)) {
-            memset(out, 0, numFrames
-                    * channels * audio_bytes_per_sample(t->mMixerFormat));
-            ALOGE_IF((((uintptr_t)in) & 3), "process_NoResampleOneTrack: bus error: "
-                    "buffer %p track %p, channels %d, needs %#x",
-                    in, t, t->channelCount, t->needs);
-            return;
-        }
-
-        const size_t outFrames = b.frameCount;
-        volumeMix<MIXTYPE, is_same<TI, float>::value, false> (
-                out, outFrames, in, aux, ramp, t);
-
-        out += outFrames * channels;
-        if (aux != NULL) {
-            aux += channels;
-        }
-        numFrames -= b.frameCount;
-
-        // release buffer
-        t->bufferProvider->releaseBuffer(&b);
-    }
-    if (ramp) {
-        t->adjustVolumeRamp(aux != NULL, is_same<TI, float>::value);
-    }
-}
-
-/* This track hook is called to do resampling then mixing,
- * pulling from the track's upstream AudioBufferProvider.
- *
- * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE, typename TO, typename TI, typename TA>
-void AudioMixer::track__Resample(track_t* t, TO* out, size_t outFrameCount, TO* temp, TA* aux)
-{
-    ALOGVV("track__Resample\n");
-    t->resampler->setSampleRate(t->sampleRate);
-    const bool ramp = t->needsRamp();
-    if (ramp || aux != NULL) {
-        // if ramp:        resample with unity gain to temp buffer and scale/mix in 2nd step.
-        // if aux != NULL: resample with unity gain to temp buffer then apply send level.
-
-        t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
-        memset(temp, 0, outFrameCount * t->mMixerChannelCount * sizeof(TO));
-        t->resampler->resample((int32_t*)temp, outFrameCount, t->bufferProvider);
-
-        volumeMix<MIXTYPE, is_same<TI, float>::value, true>(
-                out, outFrameCount, temp, aux, ramp, t);
-
-    } else { // constant volume gain
-        t->resampler->setVolume(t->mVolume[0], t->mVolume[1]);
-        t->resampler->resample((int32_t*)out, outFrameCount, t->bufferProvider);
-    }
-}
-
-/* This track hook is called to mix a track, when no resampling is required.
- * The input buffer should be present in t->in.
- *
- * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE, typename TO, typename TI, typename TA>
-void AudioMixer::track__NoResample(track_t* t, TO* out, size_t frameCount,
-        TO* temp __unused, TA* aux)
-{
-    ALOGVV("track__NoResample\n");
-    const TI *in = static_cast<const TI *>(t->in);
-
-    volumeMix<MIXTYPE, is_same<TI, float>::value, true>(
-            out, frameCount, in, aux, t->needsRamp(), t);
-
-    // MIXTYPE_MONOEXPAND reads a single input channel and expands to NCHAN output channels.
-    // MIXTYPE_MULTI reads NCHAN input channels and places to NCHAN output channels.
-    in += (MIXTYPE == MIXTYPE_MONOEXPAND) ? frameCount : frameCount * t->mMixerChannelCount;
-    t->in = in;
-}
-
-/* The Mixer engine generates either int32_t (Q4_27) or float data.
- * We use this function to convert the engine buffers
- * to the desired mixer output format, either int16_t (Q.15) or float.
- */
-void AudioMixer::convertMixerFormat(void *out, audio_format_t mixerOutFormat,
-        void *in, audio_format_t mixerInFormat, size_t sampleCount)
-{
-    switch (mixerInFormat) {
-    case AUDIO_FORMAT_PCM_FLOAT:
-        switch (mixerOutFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            memcpy(out, in, sampleCount * sizeof(float)); // MEMCPY. TODO optimize out
-            break;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            memcpy_to_i16_from_float((int16_t*)out, (float*)in, sampleCount);
-            break;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
-            break;
-        }
-        break;
-    case AUDIO_FORMAT_PCM_16_BIT:
-        switch (mixerOutFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            memcpy_to_float_from_q4_27((float*)out, (int32_t*)in, sampleCount);
-            break;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            // two int16_t are produced per iteration
-            ditherAndClamp((int32_t*)out, (int32_t*)in, sampleCount >> 1);
-            break;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
-            break;
-        }
-        break;
-    default:
-        LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
-        break;
-    }
-}
-
-/* Returns the proper track hook to use for mixing the track into the output buffer.
- */
-AudioMixer::hook_t AudioMixer::getTrackHook(int trackType, uint32_t channelCount,
-        audio_format_t mixerInFormat, audio_format_t mixerOutFormat __unused)
-{
-    if (!kUseNewMixer && channelCount == FCC_2 && mixerInFormat == AUDIO_FORMAT_PCM_16_BIT) {
-        switch (trackType) {
-        case TRACKTYPE_NOP:
-            return track__nop;
-        case TRACKTYPE_RESAMPLE:
-            return track__genericResample;
-        case TRACKTYPE_NORESAMPLEMONO:
-            return track__16BitsMono;
-        case TRACKTYPE_NORESAMPLE:
-            return track__16BitsStereo;
-        default:
-            LOG_ALWAYS_FATAL("bad trackType: %d", trackType);
-            break;
-        }
-    }
-    LOG_ALWAYS_FATAL_IF(channelCount > MAX_NUM_CHANNELS);
-    switch (trackType) {
-    case TRACKTYPE_NOP:
-        return track__nop;
-    case TRACKTYPE_RESAMPLE:
-        switch (mixerInFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return (AudioMixer::hook_t)
-                    track__Resample<MIXTYPE_MULTI, float /*TO*/, float /*TI*/, int32_t /*TA*/>;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            return (AudioMixer::hook_t)\
-                    track__Resample<MIXTYPE_MULTI, int32_t, int16_t, int32_t>;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
-            break;
-        }
-        break;
-    case TRACKTYPE_NORESAMPLEMONO:
-        switch (mixerInFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return (AudioMixer::hook_t)
-                    track__NoResample<MIXTYPE_MONOEXPAND, float, float, int32_t>;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            return (AudioMixer::hook_t)
-                    track__NoResample<MIXTYPE_MONOEXPAND, int32_t, int16_t, int32_t>;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
-            break;
-        }
-        break;
-    case TRACKTYPE_NORESAMPLE:
-        switch (mixerInFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return (AudioMixer::hook_t)
-                    track__NoResample<MIXTYPE_MULTI, float, float, int32_t>;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            return (AudioMixer::hook_t)
-                    track__NoResample<MIXTYPE_MULTI, int32_t, int16_t, int32_t>;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
-            break;
-        }
-        break;
-    default:
-        LOG_ALWAYS_FATAL("bad trackType: %d", trackType);
-        break;
-    }
-    return NULL;
-}
-
-/* Returns the proper process hook for mixing tracks. Currently works only for
- * PROCESSTYPE_NORESAMPLEONETRACK, a mix involving one track, no resampling.
- *
- * TODO: Due to the special mixing considerations of duplicating to
- * a stereo output track, the input track cannot be MONO.  This should be
- * prevented by the caller.
- */
-AudioMixer::process_hook_t AudioMixer::getProcessHook(int processType, uint32_t channelCount,
-        audio_format_t mixerInFormat, audio_format_t mixerOutFormat)
-{
-    if (processType != PROCESSTYPE_NORESAMPLEONETRACK) { // Only NORESAMPLEONETRACK
-        LOG_ALWAYS_FATAL("bad processType: %d", processType);
-        return NULL;
-    }
-    if (!kUseNewMixer && channelCount == FCC_2 && mixerInFormat == AUDIO_FORMAT_PCM_16_BIT) {
-        return process__OneTrack16BitsStereoNoResampling;
-    }
-    LOG_ALWAYS_FATAL_IF(channelCount > MAX_NUM_CHANNELS);
-    switch (mixerInFormat) {
-    case AUDIO_FORMAT_PCM_FLOAT:
-        switch (mixerOutFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
-                    float /*TO*/, float /*TI*/, int32_t /*TA*/>;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
-                    int16_t, float, int32_t>;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
-            break;
-        }
-        break;
-    case AUDIO_FORMAT_PCM_16_BIT:
-        switch (mixerOutFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
-                    float, int16_t, int32_t>;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
-                    int16_t, int16_t, int32_t>;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
-            break;
-        }
-        break;
-    default:
-        LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
-        break;
-    }
-    return NULL;
-}
-
-// ----------------------------------------------------------------------------
-} // namespace android
diff --git a/services/audioflinger/AudioMixer.h b/services/audioflinger/AudioMixer.h
deleted file mode 100644
index e788ac3..0000000
--- a/services/audioflinger/AudioMixer.h
+++ /dev/null
@@ -1,391 +0,0 @@
-/*
-**
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#ifndef ANDROID_AUDIO_MIXER_H
-#define ANDROID_AUDIO_MIXER_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <hardware/audio_effect.h>
-#include <media/AudioBufferProvider.h>
-#include <media/AudioResamplerPublic.h>
-#include <media/nbaio/NBLog.h>
-#include <system/audio.h>
-#include <utils/Compat.h>
-#include <utils/threads.h>
-
-#include "AudioResampler.h"
-#include "BufferProviders.h"
-
-// FIXME This is actually unity gain, which might not be max in future, expressed in U.12
-#define MAX_GAIN_INT AudioMixer::UNITY_GAIN_INT
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class AudioMixer
-{
-public:
-                            AudioMixer(size_t frameCount, uint32_t sampleRate,
-                                       uint32_t maxNumTracks = MAX_NUM_TRACKS);
-
-    /*virtual*/             ~AudioMixer();  // non-virtual saves a v-table, restore if sub-classed
-
-
-    // This mixer has a hard-coded upper limit of 32 active track inputs.
-    // Adding support for > 32 tracks would require more than simply changing this value.
-    static const uint32_t MAX_NUM_TRACKS = 32;
-    // maximum number of channels supported by the mixer
-
-    // This mixer has a hard-coded upper limit of 8 channels for output.
-    static const uint32_t MAX_NUM_CHANNELS = 8;
-    static const uint32_t MAX_NUM_VOLUMES = 2; // stereo volume only
-    // maximum number of channels supported for the content
-    static const uint32_t MAX_NUM_CHANNELS_TO_DOWNMIX = AUDIO_CHANNEL_COUNT_MAX;
-
-    static const uint16_t UNITY_GAIN_INT = 0x1000;
-    static const CONSTEXPR float UNITY_GAIN_FLOAT = 1.0f;
-
-    enum { // names
-
-        // track names (MAX_NUM_TRACKS units)
-        TRACK0          = 0x1000,
-
-        // 0x2000 is unused
-
-        // setParameter targets
-        TRACK           = 0x3000,
-        RESAMPLE        = 0x3001,
-        RAMP_VOLUME     = 0x3002, // ramp to new volume
-        VOLUME          = 0x3003, // don't ramp
-        TIMESTRETCH     = 0x3004,
-
-        // set Parameter names
-        // for target TRACK
-        CHANNEL_MASK    = 0x4000,
-        FORMAT          = 0x4001,
-        MAIN_BUFFER     = 0x4002,
-        AUX_BUFFER      = 0x4003,
-        DOWNMIX_TYPE    = 0X4004,
-        MIXER_FORMAT    = 0x4005, // AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
-        MIXER_CHANNEL_MASK = 0x4006, // Channel mask for mixer output
-        // for target RESAMPLE
-        SAMPLE_RATE     = 0x4100, // Configure sample rate conversion on this track name;
-                                  // parameter 'value' is the new sample rate in Hz.
-                                  // Only creates a sample rate converter the first time that
-                                  // the track sample rate is different from the mix sample rate.
-                                  // If the new sample rate is the same as the mix sample rate,
-                                  // and a sample rate converter already exists,
-                                  // then the sample rate converter remains present but is a no-op.
-        RESET           = 0x4101, // Reset sample rate converter without changing sample rate.
-                                  // This clears out the resampler's input buffer.
-        REMOVE          = 0x4102, // Remove the sample rate converter on this track name;
-                                  // the track is restored to the mix sample rate.
-        // for target RAMP_VOLUME and VOLUME (8 channels max)
-        // FIXME use float for these 3 to improve the dynamic range
-        VOLUME0         = 0x4200,
-        VOLUME1         = 0x4201,
-        AUXLEVEL        = 0x4210,
-        // for target TIMESTRETCH
-        PLAYBACK_RATE   = 0x4300, // Configure timestretch on this track name;
-                                  // parameter 'value' is a pointer to the new playback rate.
-    };
-
-
-    // For all APIs with "name": TRACK0 <= name < TRACK0 + MAX_NUM_TRACKS
-
-    // Allocate a track name.  Returns new track name if successful, -1 on failure.
-    // The failure could be because of an invalid channelMask or format, or that
-    // the track capacity of the mixer is exceeded.
-    int         getTrackName(audio_channel_mask_t channelMask,
-                             audio_format_t format, int sessionId);
-
-    // Free an allocated track by name
-    void        deleteTrackName(int name);
-
-    // Enable or disable an allocated track by name
-    void        enable(int name);
-    void        disable(int name);
-
-    void        setParameter(int name, int target, int param, void *value);
-
-    void        setBufferProvider(int name, AudioBufferProvider* bufferProvider);
-    void        process();
-
-    uint32_t    trackNames() const { return mTrackNames; }
-
-    size_t      getUnreleasedFrames(int name) const;
-
-    static inline bool isValidPcmTrackFormat(audio_format_t format) {
-        switch (format) {
-        case AUDIO_FORMAT_PCM_8_BIT:
-        case AUDIO_FORMAT_PCM_16_BIT:
-        case AUDIO_FORMAT_PCM_24_BIT_PACKED:
-        case AUDIO_FORMAT_PCM_32_BIT:
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return true;
-        default:
-            return false;
-        }
-    }
-
-private:
-
-    enum {
-        // FIXME this representation permits up to 8 channels
-        NEEDS_CHANNEL_COUNT__MASK   = 0x00000007,
-    };
-
-    enum {
-        NEEDS_CHANNEL_1             = 0x00000000,   // mono
-        NEEDS_CHANNEL_2             = 0x00000001,   // stereo
-
-        // sample format is not explicitly specified, and is assumed to be AUDIO_FORMAT_PCM_16_BIT
-
-        NEEDS_MUTE                  = 0x00000100,
-        NEEDS_RESAMPLE              = 0x00001000,
-        NEEDS_AUX                   = 0x00010000,
-    };
-
-    struct state_t;
-    struct track_t;
-
-    typedef void (*hook_t)(track_t* t, int32_t* output, size_t numOutFrames, int32_t* temp,
-                           int32_t* aux);
-    static const int BLOCKSIZE = 16; // 4 cache lines
-
-    struct track_t {
-        uint32_t    needs;
-
-        // TODO: Eventually remove legacy integer volume settings
-        union {
-        int16_t     volume[MAX_NUM_VOLUMES]; // U4.12 fixed point (top bit should be zero)
-        int32_t     volumeRL;
-        };
-
-        int32_t     prevVolume[MAX_NUM_VOLUMES];
-
-        // 16-byte boundary
-
-        int32_t     volumeInc[MAX_NUM_VOLUMES];
-        int32_t     auxInc;
-        int32_t     prevAuxLevel;
-
-        // 16-byte boundary
-
-        int16_t     auxLevel;       // 0 <= auxLevel <= MAX_GAIN_INT, but signed for mul performance
-        uint16_t    frameCount;
-
-        uint8_t     channelCount;   // 1 or 2, redundant with (needs & NEEDS_CHANNEL_COUNT__MASK)
-        uint8_t     unused_padding; // formerly format, was always 16
-        uint16_t    enabled;        // actually bool
-        audio_channel_mask_t channelMask;
-
-        // actual buffer provider used by the track hooks, see DownmixerBufferProvider below
-        //  for how the Track buffer provider is wrapped by another one when dowmixing is required
-        AudioBufferProvider*                bufferProvider;
-
-        // 16-byte boundary
-
-        mutable AudioBufferProvider::Buffer buffer; // 8 bytes
-
-        hook_t      hook;
-        const void* in;             // current location in buffer
-
-        // 16-byte boundary
-
-        AudioResampler*     resampler;
-        uint32_t            sampleRate;
-        int32_t*           mainBuffer;
-        int32_t*           auxBuffer;
-
-        // 16-byte boundary
-
-        /* Buffer providers are constructed to translate the track input data as needed.
-         *
-         * TODO: perhaps make a single PlaybackConverterProvider class to move
-         * all pre-mixer track buffer conversions outside the AudioMixer class.
-         *
-         * 1) mInputBufferProvider: The AudioTrack buffer provider.
-         * 2) mReformatBufferProvider: If not NULL, performs the audio reformat to
-         *    match either mMixerInFormat or mDownmixRequiresFormat, if the downmixer
-         *    requires reformat. For example, it may convert floating point input to
-         *    PCM_16_bit if that's required by the downmixer.
-         * 3) downmixerBufferProvider: If not NULL, performs the channel remixing to match
-         *    the number of channels required by the mixer sink.
-         * 4) mPostDownmixReformatBufferProvider: If not NULL, performs reformatting from
-         *    the downmixer requirements to the mixer engine input requirements.
-         * 5) mTimestretchBufferProvider: Adds timestretching for playback rate
-         */
-        AudioBufferProvider*     mInputBufferProvider;    // externally provided buffer provider.
-        PassthruBufferProvider*  mReformatBufferProvider; // provider wrapper for reformatting.
-        PassthruBufferProvider*  downmixerBufferProvider; // wrapper for channel conversion.
-        PassthruBufferProvider*  mPostDownmixReformatBufferProvider;
-        PassthruBufferProvider*  mTimestretchBufferProvider;
-
-        int32_t     sessionId;
-
-        audio_format_t mMixerFormat;     // output mix format: AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
-        audio_format_t mFormat;          // input track format
-        audio_format_t mMixerInFormat;   // mix internal format AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
-                                         // each track must be converted to this format.
-        audio_format_t mDownmixRequiresFormat;  // required downmixer format
-                                                // AUDIO_FORMAT_PCM_16_BIT if 16 bit necessary
-                                                // AUDIO_FORMAT_INVALID if no required format
-
-        float          mVolume[MAX_NUM_VOLUMES];     // floating point set volume
-        float          mPrevVolume[MAX_NUM_VOLUMES]; // floating point previous volume
-        float          mVolumeInc[MAX_NUM_VOLUMES];  // floating point volume increment
-
-        float          mAuxLevel;                     // floating point set aux level
-        float          mPrevAuxLevel;                 // floating point prev aux level
-        float          mAuxInc;                       // floating point aux increment
-
-        audio_channel_mask_t mMixerChannelMask;
-        uint32_t             mMixerChannelCount;
-
-        AudioPlaybackRate    mPlaybackRate;
-
-        bool        needsRamp() { return (volumeInc[0] | volumeInc[1] | auxInc) != 0; }
-        bool        setResampler(uint32_t trackSampleRate, uint32_t devSampleRate);
-        bool        doesResample() const { return resampler != NULL; }
-        void        resetResampler() { if (resampler != NULL) resampler->reset(); }
-        void        adjustVolumeRamp(bool aux, bool useFloat = false);
-        size_t      getUnreleasedFrames() const { return resampler != NULL ?
-                                                    resampler->getUnreleasedFrames() : 0; };
-
-        status_t    prepareForDownmix();
-        void        unprepareForDownmix();
-        status_t    prepareForReformat();
-        void        unprepareForReformat();
-        bool        setPlaybackRate(const AudioPlaybackRate &playbackRate);
-        void        reconfigureBufferProviders();
-    };
-
-    typedef void (*process_hook_t)(state_t* state);
-
-    // pad to 32-bytes to fill cache line
-    struct state_t {
-        uint32_t        enabledTracks;
-        uint32_t        needsChanged;
-        size_t          frameCount;
-        process_hook_t  hook;   // one of process__*, never NULL
-        int32_t         *outputTemp;
-        int32_t         *resampleTemp;
-        NBLog::Writer*  mLog;
-        int32_t         reserved[1];
-        // FIXME allocate dynamically to save some memory when maxNumTracks < MAX_NUM_TRACKS
-        track_t         tracks[MAX_NUM_TRACKS] __attribute__((aligned(32)));
-    };
-
-    // bitmask of allocated track names, where bit 0 corresponds to TRACK0 etc.
-    uint32_t        mTrackNames;
-
-    // bitmask of configured track names; ~0 if maxNumTracks == MAX_NUM_TRACKS,
-    // but will have fewer bits set if maxNumTracks < MAX_NUM_TRACKS
-    const uint32_t  mConfiguredNames;
-
-    const uint32_t  mSampleRate;
-
-    NBLog::Writer   mDummyLog;
-public:
-    void            setLog(NBLog::Writer* log);
-private:
-    state_t         mState __attribute__((aligned(32)));
-
-    // Call after changing either the enabled status of a track, or parameters of an enabled track.
-    // OK to call more often than that, but unnecessary.
-    void invalidateState(uint32_t mask);
-
-    bool setChannelMasks(int name,
-            audio_channel_mask_t trackChannelMask, audio_channel_mask_t mixerChannelMask);
-
-    static void track__genericResample(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
-            int32_t* aux);
-    static void track__nop(track_t* t, int32_t* out, size_t numFrames, int32_t* temp, int32_t* aux);
-    static void track__16BitsStereo(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
-            int32_t* aux);
-    static void track__16BitsMono(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
-            int32_t* aux);
-    static void volumeRampStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
-            int32_t* aux);
-    static void volumeStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
-            int32_t* aux);
-
-    static void process__validate(state_t* state);
-    static void process__nop(state_t* state);
-    static void process__genericNoResampling(state_t* state);
-    static void process__genericResampling(state_t* state);
-    static void process__OneTrack16BitsStereoNoResampling(state_t* state);
-
-    static pthread_once_t   sOnceControl;
-    static void             sInitRoutine();
-
-    /* multi-format volume mixing function (calls template functions
-     * in AudioMixerOps.h).  The template parameters are as follows:
-     *
-     *   MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
-     *   USEFLOATVOL (set to true if float volume is used)
-     *   ADJUSTVOL   (set to true if volume ramp parameters needs adjustment afterwards)
-     *   TO: int32_t (Q4.27) or float
-     *   TI: int32_t (Q4.27) or int16_t (Q0.15) or float
-     *   TA: int32_t (Q4.27)
-     */
-    template <int MIXTYPE, bool USEFLOATVOL, bool ADJUSTVOL,
-        typename TO, typename TI, typename TA>
-    static void volumeMix(TO *out, size_t outFrames,
-            const TI *in, TA *aux, bool ramp, AudioMixer::track_t *t);
-
-    // multi-format process hooks
-    template <int MIXTYPE, typename TO, typename TI, typename TA>
-    static void process_NoResampleOneTrack(state_t* state);
-
-    // multi-format track hooks
-    template <int MIXTYPE, typename TO, typename TI, typename TA>
-    static void track__Resample(track_t* t, TO* out, size_t frameCount,
-            TO* temp __unused, TA* aux);
-    template <int MIXTYPE, typename TO, typename TI, typename TA>
-    static void track__NoResample(track_t* t, TO* out, size_t frameCount,
-            TO* temp __unused, TA* aux);
-
-    static void convertMixerFormat(void *out, audio_format_t mixerOutFormat,
-            void *in, audio_format_t mixerInFormat, size_t sampleCount);
-
-    // hook types
-    enum {
-        PROCESSTYPE_NORESAMPLEONETRACK,
-    };
-    enum {
-        TRACKTYPE_NOP,
-        TRACKTYPE_RESAMPLE,
-        TRACKTYPE_NORESAMPLE,
-        TRACKTYPE_NORESAMPLEMONO,
-    };
-
-    // functions for determining the proper process and track hooks.
-    static process_hook_t getProcessHook(int processType, uint32_t channelCount,
-            audio_format_t mixerInFormat, audio_format_t mixerOutFormat);
-    static hook_t getTrackHook(int trackType, uint32_t channelCount,
-            audio_format_t mixerInFormat, audio_format_t mixerOutFormat);
-};
-
-// ----------------------------------------------------------------------------
-} // namespace android
-
-#endif // ANDROID_AUDIO_MIXER_H
diff --git a/services/audioflinger/AudioResampler.cpp b/services/audioflinger/AudioResampler.cpp
deleted file mode 100644
index 4f8b413..0000000
--- a/services/audioflinger/AudioResampler.cpp
+++ /dev/null
@@ -1,784 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioResampler"
-//#define LOG_NDEBUG 0
-
-#include <stdint.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <cutils/log.h>
-#include <cutils/properties.h>
-#include <audio_utils/primitives.h>
-#include "AudioResampler.h"
-#include "AudioResamplerSinc.h"
-#include "AudioResamplerCubic.h"
-#include "AudioResamplerDyn.h"
-
-#ifdef __arm__
-    // bug 13102576
-    //#define ASM_ARM_RESAMP1 // enable asm optimisation for ResamplerOrder1
-#endif
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class AudioResamplerOrder1 : public AudioResampler {
-public:
-    AudioResamplerOrder1(int inChannelCount, int32_t sampleRate) :
-        AudioResampler(inChannelCount, sampleRate, LOW_QUALITY), mX0L(0), mX0R(0) {
-    }
-    virtual size_t resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-private:
-    // number of bits used in interpolation multiply - 15 bits avoids overflow
-    static const int kNumInterpBits = 15;
-
-    // bits to shift the phase fraction down to avoid overflow
-    static const int kPreInterpShift = kNumPhaseBits - kNumInterpBits;
-
-    void init() {}
-    size_t resampleMono16(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-    size_t resampleStereo16(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
-    void AsmMono16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
-            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
-            uint32_t &phaseFraction, uint32_t phaseIncrement);
-    void AsmStereo16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
-            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
-            uint32_t &phaseFraction, uint32_t phaseIncrement);
-#endif  // ASM_ARM_RESAMP1
-
-    static inline int32_t Interp(int32_t x0, int32_t x1, uint32_t f) {
-        return x0 + (((x1 - x0) * (int32_t)(f >> kPreInterpShift)) >> kNumInterpBits);
-    }
-    static inline void Advance(size_t* index, uint32_t* frac, uint32_t inc) {
-        *frac += inc;
-        *index += (size_t)(*frac >> kNumPhaseBits);
-        *frac &= kPhaseMask;
-    }
-    int mX0L;
-    int mX0R;
-};
-
-/*static*/
-const double AudioResampler::kPhaseMultiplier = 1L << AudioResampler::kNumPhaseBits;
-
-bool AudioResampler::qualityIsSupported(src_quality quality)
-{
-    switch (quality) {
-    case DEFAULT_QUALITY:
-    case LOW_QUALITY:
-    case MED_QUALITY:
-    case HIGH_QUALITY:
-    case VERY_HIGH_QUALITY:
-    case DYN_LOW_QUALITY:
-    case DYN_MED_QUALITY:
-    case DYN_HIGH_QUALITY:
-        return true;
-    default:
-        return false;
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-static pthread_once_t once_control = PTHREAD_ONCE_INIT;
-static AudioResampler::src_quality defaultQuality = AudioResampler::DEFAULT_QUALITY;
-
-void AudioResampler::init_routine()
-{
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("af.resampler.quality", value, NULL) > 0) {
-        char *endptr;
-        unsigned long l = strtoul(value, &endptr, 0);
-        if (*endptr == '\0') {
-            defaultQuality = (src_quality) l;
-            ALOGD("forcing AudioResampler quality to %d", defaultQuality);
-            if (defaultQuality < DEFAULT_QUALITY || defaultQuality > DYN_HIGH_QUALITY) {
-                defaultQuality = DEFAULT_QUALITY;
-            }
-        }
-    }
-}
-
-uint32_t AudioResampler::qualityMHz(src_quality quality)
-{
-    switch (quality) {
-    default:
-    case DEFAULT_QUALITY:
-    case LOW_QUALITY:
-        return 3;
-    case MED_QUALITY:
-        return 6;
-    case HIGH_QUALITY:
-        return 20;
-    case VERY_HIGH_QUALITY:
-        return 34;
-    case DYN_LOW_QUALITY:
-        return 4;
-    case DYN_MED_QUALITY:
-        return 6;
-    case DYN_HIGH_QUALITY:
-        return 12;
-    }
-}
-
-static const uint32_t maxMHz = 130; // an arbitrary number that permits 3 VHQ, should be tunable
-static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-static uint32_t currentMHz = 0;
-
-AudioResampler* AudioResampler::create(audio_format_t format, int inChannelCount,
-        int32_t sampleRate, src_quality quality) {
-
-    bool atFinalQuality;
-    if (quality == DEFAULT_QUALITY) {
-        // read the resampler default quality property the first time it is needed
-        int ok = pthread_once(&once_control, init_routine);
-        if (ok != 0) {
-            ALOGE("%s pthread_once failed: %d", __func__, ok);
-        }
-        quality = defaultQuality;
-        atFinalQuality = false;
-    } else {
-        atFinalQuality = true;
-    }
-
-    /* if the caller requests DEFAULT_QUALITY and af.resampler.property
-     * has not been set, the target resampler quality is set to DYN_MED_QUALITY,
-     * and allowed to "throttle" down to DYN_LOW_QUALITY if necessary
-     * due to estimated CPU load of having too many active resamplers
-     * (the code below the if).
-     */
-    if (quality == DEFAULT_QUALITY) {
-        quality = DYN_MED_QUALITY;
-    }
-
-    // naive implementation of CPU load throttling doesn't account for whether resampler is active
-    pthread_mutex_lock(&mutex);
-    for (;;) {
-        uint32_t deltaMHz = qualityMHz(quality);
-        uint32_t newMHz = currentMHz + deltaMHz;
-        if ((qualityIsSupported(quality) && newMHz <= maxMHz) || atFinalQuality) {
-            ALOGV("resampler load %u -> %u MHz due to delta +%u MHz from quality %d",
-                    currentMHz, newMHz, deltaMHz, quality);
-            currentMHz = newMHz;
-            break;
-        }
-        // not enough CPU available for proposed quality level, so try next lowest level
-        switch (quality) {
-        default:
-        case LOW_QUALITY:
-            atFinalQuality = true;
-            break;
-        case MED_QUALITY:
-            quality = LOW_QUALITY;
-            break;
-        case HIGH_QUALITY:
-            quality = MED_QUALITY;
-            break;
-        case VERY_HIGH_QUALITY:
-            quality = HIGH_QUALITY;
-            break;
-        case DYN_LOW_QUALITY:
-            atFinalQuality = true;
-            break;
-        case DYN_MED_QUALITY:
-            quality = DYN_LOW_QUALITY;
-            break;
-        case DYN_HIGH_QUALITY:
-            quality = DYN_MED_QUALITY;
-            break;
-        }
-    }
-    pthread_mutex_unlock(&mutex);
-
-    AudioResampler* resampler;
-
-    switch (quality) {
-    default:
-    case LOW_QUALITY:
-        ALOGV("Create linear Resampler");
-        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
-        resampler = new AudioResamplerOrder1(inChannelCount, sampleRate);
-        break;
-    case MED_QUALITY:
-        ALOGV("Create cubic Resampler");
-        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
-        resampler = new AudioResamplerCubic(inChannelCount, sampleRate);
-        break;
-    case HIGH_QUALITY:
-        ALOGV("Create HIGH_QUALITY sinc Resampler");
-        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
-        resampler = new AudioResamplerSinc(inChannelCount, sampleRate);
-        break;
-    case VERY_HIGH_QUALITY:
-        ALOGV("Create VERY_HIGH_QUALITY sinc Resampler = %d", quality);
-        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
-        resampler = new AudioResamplerSinc(inChannelCount, sampleRate, quality);
-        break;
-    case DYN_LOW_QUALITY:
-    case DYN_MED_QUALITY:
-    case DYN_HIGH_QUALITY:
-        ALOGV("Create dynamic Resampler = %d", quality);
-        if (format == AUDIO_FORMAT_PCM_FLOAT) {
-            resampler = new AudioResamplerDyn<float, float, float>(inChannelCount,
-                    sampleRate, quality);
-        } else {
-            LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
-            if (quality == DYN_HIGH_QUALITY) {
-                resampler = new AudioResamplerDyn<int32_t, int16_t, int32_t>(inChannelCount,
-                        sampleRate, quality);
-            } else {
-                resampler = new AudioResamplerDyn<int16_t, int16_t, int32_t>(inChannelCount,
-                        sampleRate, quality);
-            }
-        }
-        break;
-    }
-
-    // initialize resampler
-    resampler->init();
-    return resampler;
-}
-
-AudioResampler::AudioResampler(int inChannelCount,
-        int32_t sampleRate, src_quality quality) :
-        mChannelCount(inChannelCount),
-        mSampleRate(sampleRate), mInSampleRate(sampleRate), mInputIndex(0),
-        mPhaseFraction(0),
-        mQuality(quality) {
-
-    const int maxChannels = quality < DYN_LOW_QUALITY ? 2 : 8;
-    if (inChannelCount < 1
-            || inChannelCount > maxChannels) {
-        LOG_ALWAYS_FATAL("Unsupported sample format %d quality %d channels",
-                quality, inChannelCount);
-    }
-    if (sampleRate <= 0) {
-        LOG_ALWAYS_FATAL("Unsupported sample rate %d Hz", sampleRate);
-    }
-
-    // initialize common members
-    mVolume[0] = mVolume[1] = 0;
-    mBuffer.frameCount = 0;
-}
-
-AudioResampler::~AudioResampler() {
-    pthread_mutex_lock(&mutex);
-    src_quality quality = getQuality();
-    uint32_t deltaMHz = qualityMHz(quality);
-    int32_t newMHz = currentMHz - deltaMHz;
-    ALOGV("resampler load %u -> %d MHz due to delta -%u MHz from quality %d",
-            currentMHz, newMHz, deltaMHz, quality);
-    LOG_ALWAYS_FATAL_IF(newMHz < 0, "negative resampler load %d MHz", newMHz);
-    currentMHz = newMHz;
-    pthread_mutex_unlock(&mutex);
-}
-
-void AudioResampler::setSampleRate(int32_t inSampleRate) {
-    mInSampleRate = inSampleRate;
-    mPhaseIncrement = (uint32_t)((kPhaseMultiplier * inSampleRate) / mSampleRate);
-}
-
-void AudioResampler::setVolume(float left, float right) {
-    // TODO: Implement anti-zipper filter
-    // convert to U4.12 for internal integer use (round down)
-    // integer volume values are clamped to 0 to UNITY_GAIN.
-    mVolume[0] = u4_12_from_float(clampFloatVol(left));
-    mVolume[1] = u4_12_from_float(clampFloatVol(right));
-}
-
-void AudioResampler::reset() {
-    mInputIndex = 0;
-    mPhaseFraction = 0;
-    mBuffer.frameCount = 0;
-}
-
-// ----------------------------------------------------------------------------
-
-size_t AudioResamplerOrder1::resample(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    // should never happen, but we overflow if it does
-    // ALOG_ASSERT(outFrameCount < 32767);
-
-    // select the appropriate resampler
-    switch (mChannelCount) {
-    case 1:
-        return resampleMono16(out, outFrameCount, provider);
-    case 2:
-        return resampleStereo16(out, outFrameCount, provider);
-    default:
-        LOG_ALWAYS_FATAL("invalid channel count: %d", mChannelCount);
-        return 0;
-    }
-}
-
-size_t AudioResamplerOrder1::resampleStereo16(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    int32_t vl = mVolume[0];
-    int32_t vr = mVolume[1];
-
-    size_t inputIndex = mInputIndex;
-    uint32_t phaseFraction = mPhaseFraction;
-    uint32_t phaseIncrement = mPhaseIncrement;
-    size_t outputIndex = 0;
-    size_t outputSampleCount = outFrameCount * 2;
-    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
-
-    // ALOGE("starting resample %d frames, inputIndex=%d, phaseFraction=%d, phaseIncrement=%d",
-    //      outFrameCount, inputIndex, phaseFraction, phaseIncrement);
-
-    while (outputIndex < outputSampleCount) {
-
-        // buffer is empty, fetch a new one
-        while (mBuffer.frameCount == 0) {
-            mBuffer.frameCount = inFrameCount;
-            provider->getNextBuffer(&mBuffer);
-            if (mBuffer.raw == NULL) {
-                goto resampleStereo16_exit;
-            }
-
-            // ALOGE("New buffer fetched: %d frames", mBuffer.frameCount);
-            if (mBuffer.frameCount > inputIndex) break;
-
-            inputIndex -= mBuffer.frameCount;
-            mX0L = mBuffer.i16[mBuffer.frameCount*2-2];
-            mX0R = mBuffer.i16[mBuffer.frameCount*2-1];
-            provider->releaseBuffer(&mBuffer);
-            // mBuffer.frameCount == 0 now so we reload a new buffer
-        }
-
-        int16_t *in = mBuffer.i16;
-
-        // handle boundary case
-        while (inputIndex == 0) {
-            // ALOGE("boundary case");
-            out[outputIndex++] += vl * Interp(mX0L, in[0], phaseFraction);
-            out[outputIndex++] += vr * Interp(mX0R, in[1], phaseFraction);
-            Advance(&inputIndex, &phaseFraction, phaseIncrement);
-            if (outputIndex == outputSampleCount) {
-                break;
-            }
-        }
-
-        // process input samples
-        // ALOGE("general case");
-
-#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
-        if (inputIndex + 2 < mBuffer.frameCount) {
-            int32_t* maxOutPt;
-            int32_t maxInIdx;
-
-            maxOutPt = out + (outputSampleCount - 2);   // 2 because 2 frames per loop
-            maxInIdx = mBuffer.frameCount - 2;
-            AsmStereo16Loop(in, maxOutPt, maxInIdx, outputIndex, out, inputIndex, vl, vr,
-                    phaseFraction, phaseIncrement);
-        }
-#endif  // ASM_ARM_RESAMP1
-
-        while (outputIndex < outputSampleCount && inputIndex < mBuffer.frameCount) {
-            out[outputIndex++] += vl * Interp(in[inputIndex*2-2],
-                    in[inputIndex*2], phaseFraction);
-            out[outputIndex++] += vr * Interp(in[inputIndex*2-1],
-                    in[inputIndex*2+1], phaseFraction);
-            Advance(&inputIndex, &phaseFraction, phaseIncrement);
-        }
-
-        // ALOGE("loop done - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
-
-        // if done with buffer, save samples
-        if (inputIndex >= mBuffer.frameCount) {
-            inputIndex -= mBuffer.frameCount;
-
-            // ALOGE("buffer done, new input index %d", inputIndex);
-
-            mX0L = mBuffer.i16[mBuffer.frameCount*2-2];
-            mX0R = mBuffer.i16[mBuffer.frameCount*2-1];
-            provider->releaseBuffer(&mBuffer);
-
-            // verify that the releaseBuffer resets the buffer frameCount
-            // ALOG_ASSERT(mBuffer.frameCount == 0);
-        }
-    }
-
-    // ALOGE("output buffer full - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
-
-resampleStereo16_exit:
-    // save state
-    mInputIndex = inputIndex;
-    mPhaseFraction = phaseFraction;
-    return outputIndex / 2 /* channels for stereo */;
-}
-
-size_t AudioResamplerOrder1::resampleMono16(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    int32_t vl = mVolume[0];
-    int32_t vr = mVolume[1];
-
-    size_t inputIndex = mInputIndex;
-    uint32_t phaseFraction = mPhaseFraction;
-    uint32_t phaseIncrement = mPhaseIncrement;
-    size_t outputIndex = 0;
-    size_t outputSampleCount = outFrameCount * 2;
-    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
-
-    // ALOGE("starting resample %d frames, inputIndex=%d, phaseFraction=%d, phaseIncrement=%d",
-    //      outFrameCount, inputIndex, phaseFraction, phaseIncrement);
-    while (outputIndex < outputSampleCount) {
-        // buffer is empty, fetch a new one
-        while (mBuffer.frameCount == 0) {
-            mBuffer.frameCount = inFrameCount;
-            provider->getNextBuffer(&mBuffer);
-            if (mBuffer.raw == NULL) {
-                mInputIndex = inputIndex;
-                mPhaseFraction = phaseFraction;
-                goto resampleMono16_exit;
-            }
-            // ALOGE("New buffer fetched: %d frames", mBuffer.frameCount);
-            if (mBuffer.frameCount >  inputIndex) break;
-
-            inputIndex -= mBuffer.frameCount;
-            mX0L = mBuffer.i16[mBuffer.frameCount-1];
-            provider->releaseBuffer(&mBuffer);
-            // mBuffer.frameCount == 0 now so we reload a new buffer
-        }
-        int16_t *in = mBuffer.i16;
-
-        // handle boundary case
-        while (inputIndex == 0) {
-            // ALOGE("boundary case");
-            int32_t sample = Interp(mX0L, in[0], phaseFraction);
-            out[outputIndex++] += vl * sample;
-            out[outputIndex++] += vr * sample;
-            Advance(&inputIndex, &phaseFraction, phaseIncrement);
-            if (outputIndex == outputSampleCount) {
-                break;
-            }
-        }
-
-        // process input samples
-        // ALOGE("general case");
-
-#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
-        if (inputIndex + 2 < mBuffer.frameCount) {
-            int32_t* maxOutPt;
-            int32_t maxInIdx;
-
-            maxOutPt = out + (outputSampleCount - 2);
-            maxInIdx = (int32_t)mBuffer.frameCount - 2;
-                AsmMono16Loop(in, maxOutPt, maxInIdx, outputIndex, out, inputIndex, vl, vr,
-                        phaseFraction, phaseIncrement);
-        }
-#endif  // ASM_ARM_RESAMP1
-
-        while (outputIndex < outputSampleCount && inputIndex < mBuffer.frameCount) {
-            int32_t sample = Interp(in[inputIndex-1], in[inputIndex],
-                    phaseFraction);
-            out[outputIndex++] += vl * sample;
-            out[outputIndex++] += vr * sample;
-            Advance(&inputIndex, &phaseFraction, phaseIncrement);
-        }
-
-
-        // ALOGE("loop done - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
-
-        // if done with buffer, save samples
-        if (inputIndex >= mBuffer.frameCount) {
-            inputIndex -= mBuffer.frameCount;
-
-            // ALOGE("buffer done, new input index %d", inputIndex);
-
-            mX0L = mBuffer.i16[mBuffer.frameCount-1];
-            provider->releaseBuffer(&mBuffer);
-
-            // verify that the releaseBuffer resets the buffer frameCount
-            // ALOG_ASSERT(mBuffer.frameCount == 0);
-        }
-    }
-
-    // ALOGE("output buffer full - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
-
-resampleMono16_exit:
-    // save state
-    mInputIndex = inputIndex;
-    mPhaseFraction = phaseFraction;
-    return outputIndex;
-}
-
-#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
-
-/*******************************************************************
-*
-*   AsmMono16Loop
-*   asm optimized monotonic loop version; one loop is 2 frames
-*   Input:
-*       in : pointer on input samples
-*       maxOutPt : pointer on first not filled
-*       maxInIdx : index on first not used
-*       outputIndex : pointer on current output index
-*       out : pointer on output buffer
-*       inputIndex : pointer on current input index
-*       vl, vr : left and right gain
-*       phaseFraction : pointer on current phase fraction
-*       phaseIncrement
-*   Ouput:
-*       outputIndex :
-*       out : updated buffer
-*       inputIndex : index of next to use
-*       phaseFraction : phase fraction for next interpolation
-*
-*******************************************************************/
-__attribute__((noinline))
-void AudioResamplerOrder1::AsmMono16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
-            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
-            uint32_t &phaseFraction, uint32_t phaseIncrement)
-{
-    (void)maxOutPt; // remove unused parameter warnings
-    (void)maxInIdx;
-    (void)outputIndex;
-    (void)out;
-    (void)inputIndex;
-    (void)vl;
-    (void)vr;
-    (void)phaseFraction;
-    (void)phaseIncrement;
-    (void)in;
-#define MO_PARAM5   "36"        // offset of parameter 5 (outputIndex)
-
-    asm(
-        "stmfd  sp!, {r4, r5, r6, r7, r8, r9, r10, r11, lr}\n"
-        // get parameters
-        "   ldr r6, [sp, #" MO_PARAM5 " + 20]\n"    // &phaseFraction
-        "   ldr r6, [r6]\n"                         // phaseFraction
-        "   ldr r7, [sp, #" MO_PARAM5 " + 8]\n"     // &inputIndex
-        "   ldr r7, [r7]\n"                         // inputIndex
-        "   ldr r8, [sp, #" MO_PARAM5 " + 4]\n"     // out
-        "   ldr r0, [sp, #" MO_PARAM5 " + 0]\n"     // &outputIndex
-        "   ldr r0, [r0]\n"                         // outputIndex
-        "   add r8, r8, r0, asl #2\n"               // curOut
-        "   ldr r9, [sp, #" MO_PARAM5 " + 24]\n"    // phaseIncrement
-        "   ldr r10, [sp, #" MO_PARAM5 " + 12]\n"   // vl
-        "   ldr r11, [sp, #" MO_PARAM5 " + 16]\n"   // vr
-
-        // r0 pin, x0, Samp
-
-        // r1 in
-        // r2 maxOutPt
-        // r3 maxInIdx
-
-        // r4 x1, i1, i3, Out1
-        // r5 out0
-
-        // r6 frac
-        // r7 inputIndex
-        // r8 curOut
-
-        // r9 inc
-        // r10 vl
-        // r11 vr
-
-        // r12
-        // r13 sp
-        // r14
-
-        // the following loop works on 2 frames
-
-        "1:\n"
-        "   cmp r8, r2\n"                   // curOut - maxCurOut
-        "   bcs 2f\n"
-
-#define MO_ONE_FRAME \
-    "   add r0, r1, r7, asl #1\n"       /* in + inputIndex */\
-    "   ldrsh r4, [r0]\n"               /* in[inputIndex] */\
-    "   ldr r5, [r8]\n"                 /* out[outputIndex] */\
-    "   ldrsh r0, [r0, #-2]\n"          /* in[inputIndex-1] */\
-    "   bic r6, r6, #0xC0000000\n"      /* phaseFraction & ... */\
-    "   sub r4, r4, r0\n"               /* in[inputIndex] - in[inputIndex-1] */\
-    "   mov r4, r4, lsl #2\n"           /* <<2 */\
-    "   smulwt r4, r4, r6\n"            /* (x1-x0)*.. */\
-    "   add r6, r6, r9\n"               /* phaseFraction + phaseIncrement */\
-    "   add r0, r0, r4\n"               /* x0 - (..) */\
-    "   mla r5, r0, r10, r5\n"          /* vl*interp + out[] */\
-    "   ldr r4, [r8, #4]\n"             /* out[outputIndex+1] */\
-    "   str r5, [r8], #4\n"             /* out[outputIndex++] = ... */\
-    "   mla r4, r0, r11, r4\n"          /* vr*interp + out[] */\
-    "   add r7, r7, r6, lsr #30\n"      /* inputIndex + phaseFraction>>30 */\
-    "   str r4, [r8], #4\n"             /* out[outputIndex++] = ... */
-
-        MO_ONE_FRAME    // frame 1
-        MO_ONE_FRAME    // frame 2
-
-        "   cmp r7, r3\n"                   // inputIndex - maxInIdx
-        "   bcc 1b\n"
-        "2:\n"
-
-        "   bic r6, r6, #0xC0000000\n"             // phaseFraction & ...
-        // save modified values
-        "   ldr r0, [sp, #" MO_PARAM5 " + 20]\n"    // &phaseFraction
-        "   str r6, [r0]\n"                         // phaseFraction
-        "   ldr r0, [sp, #" MO_PARAM5 " + 8]\n"     // &inputIndex
-        "   str r7, [r0]\n"                         // inputIndex
-        "   ldr r0, [sp, #" MO_PARAM5 " + 4]\n"     // out
-        "   sub r8, r0\n"                           // curOut - out
-        "   asr r8, #2\n"                           // new outputIndex
-        "   ldr r0, [sp, #" MO_PARAM5 " + 0]\n"     // &outputIndex
-        "   str r8, [r0]\n"                         // save outputIndex
-
-        "   ldmfd   sp!, {r4, r5, r6, r7, r8, r9, r10, r11, pc}\n"
-    );
-}
-
-/*******************************************************************
-*
-*   AsmStereo16Loop
-*   asm optimized stereo loop version; one loop is 2 frames
-*   Input:
-*       in : pointer on input samples
-*       maxOutPt : pointer on first not filled
-*       maxInIdx : index on first not used
-*       outputIndex : pointer on current output index
-*       out : pointer on output buffer
-*       inputIndex : pointer on current input index
-*       vl, vr : left and right gain
-*       phaseFraction : pointer on current phase fraction
-*       phaseIncrement
-*   Ouput:
-*       outputIndex :
-*       out : updated buffer
-*       inputIndex : index of next to use
-*       phaseFraction : phase fraction for next interpolation
-*
-*******************************************************************/
-__attribute__((noinline))
-void AudioResamplerOrder1::AsmStereo16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
-            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
-            uint32_t &phaseFraction, uint32_t phaseIncrement)
-{
-    (void)maxOutPt; // remove unused parameter warnings
-    (void)maxInIdx;
-    (void)outputIndex;
-    (void)out;
-    (void)inputIndex;
-    (void)vl;
-    (void)vr;
-    (void)phaseFraction;
-    (void)phaseIncrement;
-    (void)in;
-#define ST_PARAM5    "40"     // offset of parameter 5 (outputIndex)
-    asm(
-        "stmfd  sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, lr}\n"
-        // get parameters
-        "   ldr r6, [sp, #" ST_PARAM5 " + 20]\n"    // &phaseFraction
-        "   ldr r6, [r6]\n"                         // phaseFraction
-        "   ldr r7, [sp, #" ST_PARAM5 " + 8]\n"     // &inputIndex
-        "   ldr r7, [r7]\n"                         // inputIndex
-        "   ldr r8, [sp, #" ST_PARAM5 " + 4]\n"     // out
-        "   ldr r0, [sp, #" ST_PARAM5 " + 0]\n"     // &outputIndex
-        "   ldr r0, [r0]\n"                         // outputIndex
-        "   add r8, r8, r0, asl #2\n"               // curOut
-        "   ldr r9, [sp, #" ST_PARAM5 " + 24]\n"    // phaseIncrement
-        "   ldr r10, [sp, #" ST_PARAM5 " + 12]\n"   // vl
-        "   ldr r11, [sp, #" ST_PARAM5 " + 16]\n"   // vr
-
-        // r0 pin, x0, Samp
-
-        // r1 in
-        // r2 maxOutPt
-        // r3 maxInIdx
-
-        // r4 x1, i1, i3, out1
-        // r5 out0
-
-        // r6 frac
-        // r7 inputIndex
-        // r8 curOut
-
-        // r9 inc
-        // r10 vl
-        // r11 vr
-
-        // r12 temporary
-        // r13 sp
-        // r14
-
-        "3:\n"
-        "   cmp r8, r2\n"                   // curOut - maxCurOut
-        "   bcs 4f\n"
-
-#define ST_ONE_FRAME \
-    "   bic r6, r6, #0xC0000000\n"      /* phaseFraction & ... */\
-\
-    "   add r0, r1, r7, asl #2\n"       /* in + 2*inputIndex */\
-\
-    "   ldrsh r4, [r0]\n"               /* in[2*inputIndex] */\
-    "   ldr r5, [r8]\n"                 /* out[outputIndex] */\
-    "   ldrsh r12, [r0, #-4]\n"         /* in[2*inputIndex-2] */\
-    "   sub r4, r4, r12\n"              /* in[2*InputIndex] - in[2*InputIndex-2] */\
-    "   mov r4, r4, lsl #2\n"           /* <<2 */\
-    "   smulwt r4, r4, r6\n"            /* (x1-x0)*.. */\
-    "   add r12, r12, r4\n"             /* x0 - (..) */\
-    "   mla r5, r12, r10, r5\n"         /* vl*interp + out[] */\
-    "   ldr r4, [r8, #4]\n"             /* out[outputIndex+1] */\
-    "   str r5, [r8], #4\n"             /* out[outputIndex++] = ... */\
-\
-    "   ldrsh r12, [r0, #+2]\n"         /* in[2*inputIndex+1] */\
-    "   ldrsh r0, [r0, #-2]\n"          /* in[2*inputIndex-1] */\
-    "   sub r12, r12, r0\n"             /* in[2*InputIndex] - in[2*InputIndex-2] */\
-    "   mov r12, r12, lsl #2\n"         /* <<2 */\
-    "   smulwt r12, r12, r6\n"          /* (x1-x0)*.. */\
-    "   add r12, r0, r12\n"             /* x0 - (..) */\
-    "   mla r4, r12, r11, r4\n"         /* vr*interp + out[] */\
-    "   str r4, [r8], #4\n"             /* out[outputIndex++] = ... */\
-\
-    "   add r6, r6, r9\n"               /* phaseFraction + phaseIncrement */\
-    "   add r7, r7, r6, lsr #30\n"      /* inputIndex + phaseFraction>>30 */
-
-    ST_ONE_FRAME    // frame 1
-    ST_ONE_FRAME    // frame 1
-
-        "   cmp r7, r3\n"                       // inputIndex - maxInIdx
-        "   bcc 3b\n"
-        "4:\n"
-
-        "   bic r6, r6, #0xC0000000\n"              // phaseFraction & ...
-        // save modified values
-        "   ldr r0, [sp, #" ST_PARAM5 " + 20]\n"    // &phaseFraction
-        "   str r6, [r0]\n"                         // phaseFraction
-        "   ldr r0, [sp, #" ST_PARAM5 " + 8]\n"     // &inputIndex
-        "   str r7, [r0]\n"                         // inputIndex
-        "   ldr r0, [sp, #" ST_PARAM5 " + 4]\n"     // out
-        "   sub r8, r0\n"                           // curOut - out
-        "   asr r8, #2\n"                           // new outputIndex
-        "   ldr r0, [sp, #" ST_PARAM5 " + 0]\n"     // &outputIndex
-        "   str r8, [r0]\n"                         // save outputIndex
-
-        "   ldmfd   sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, pc}\n"
-    );
-}
-
-#endif  // ASM_ARM_RESAMP1
-
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/services/audioflinger/AudioResamplerCubic.cpp b/services/audioflinger/AudioResamplerCubic.cpp
deleted file mode 100644
index 9c3c7cb..0000000
--- a/services/audioflinger/AudioResamplerCubic.cpp
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioResamplerCubic"
-
-#include <stdint.h>
-#include <string.h>
-#include <sys/types.h>
-#include <cutils/log.h>
-
-#include "AudioResampler.h"
-#include "AudioResamplerCubic.h"
-
-namespace android {
-// ----------------------------------------------------------------------------
-
-void AudioResamplerCubic::init() {
-    memset(&left, 0, sizeof(state));
-    memset(&right, 0, sizeof(state));
-}
-
-size_t AudioResamplerCubic::resample(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    // should never happen, but we overflow if it does
-    // ALOG_ASSERT(outFrameCount < 32767);
-
-    // select the appropriate resampler
-    switch (mChannelCount) {
-    case 1:
-        return resampleMono16(out, outFrameCount, provider);
-    case 2:
-        return resampleStereo16(out, outFrameCount, provider);
-    default:
-        LOG_ALWAYS_FATAL("invalid channel count: %d", mChannelCount);
-        return 0;
-    }
-}
-
-size_t AudioResamplerCubic::resampleStereo16(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    int32_t vl = mVolume[0];
-    int32_t vr = mVolume[1];
-
-    size_t inputIndex = mInputIndex;
-    uint32_t phaseFraction = mPhaseFraction;
-    uint32_t phaseIncrement = mPhaseIncrement;
-    size_t outputIndex = 0;
-    size_t outputSampleCount = outFrameCount * 2;
-    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
-
-    // fetch first buffer
-    if (mBuffer.frameCount == 0) {
-        mBuffer.frameCount = inFrameCount;
-        provider->getNextBuffer(&mBuffer);
-        if (mBuffer.raw == NULL) {
-            return 0;
-        }
-        // ALOGW("New buffer: offset=%p, frames=%dn", mBuffer.raw, mBuffer.frameCount);
-    }
-    int16_t *in = mBuffer.i16;
-
-    while (outputIndex < outputSampleCount) {
-        int32_t x;
-
-        // calculate output sample
-        x = phaseFraction >> kPreInterpShift;
-        out[outputIndex++] += vl * interp(&left, x);
-        out[outputIndex++] += vr * interp(&right, x);
-        // out[outputIndex++] += vr * in[inputIndex*2];
-
-        // increment phase
-        phaseFraction += phaseIncrement;
-        uint32_t indexIncrement = (phaseFraction >> kNumPhaseBits);
-        phaseFraction &= kPhaseMask;
-
-        // time to fetch another sample
-        while (indexIncrement--) {
-
-            inputIndex++;
-            if (inputIndex == mBuffer.frameCount) {
-                inputIndex = 0;
-                provider->releaseBuffer(&mBuffer);
-                mBuffer.frameCount = inFrameCount;
-                provider->getNextBuffer(&mBuffer);
-                if (mBuffer.raw == NULL) {
-                    goto save_state;  // ugly, but efficient
-                }
-                in = mBuffer.i16;
-                // ALOGW("New buffer: offset=%p, frames=%d", mBuffer.raw, mBuffer.frameCount);
-            }
-
-            // advance sample state
-            advance(&left, in[inputIndex*2]);
-            advance(&right, in[inputIndex*2+1]);
-        }
-    }
-
-save_state:
-    // ALOGW("Done: index=%d, fraction=%u", inputIndex, phaseFraction);
-    mInputIndex = inputIndex;
-    mPhaseFraction = phaseFraction;
-    return outputIndex / 2 /* channels for stereo */;
-}
-
-size_t AudioResamplerCubic::resampleMono16(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    int32_t vl = mVolume[0];
-    int32_t vr = mVolume[1];
-
-    size_t inputIndex = mInputIndex;
-    uint32_t phaseFraction = mPhaseFraction;
-    uint32_t phaseIncrement = mPhaseIncrement;
-    size_t outputIndex = 0;
-    size_t outputSampleCount = outFrameCount * 2;
-    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
-
-    // fetch first buffer
-    if (mBuffer.frameCount == 0) {
-        mBuffer.frameCount = inFrameCount;
-        provider->getNextBuffer(&mBuffer);
-        if (mBuffer.raw == NULL) {
-            return 0;
-        }
-        // ALOGW("New buffer: offset=%p, frames=%d", mBuffer.raw, mBuffer.frameCount);
-    }
-    int16_t *in = mBuffer.i16;
-
-    while (outputIndex < outputSampleCount) {
-        int32_t sample;
-        int32_t x;
-
-        // calculate output sample
-        x = phaseFraction >> kPreInterpShift;
-        sample = interp(&left, x);
-        out[outputIndex++] += vl * sample;
-        out[outputIndex++] += vr * sample;
-
-        // increment phase
-        phaseFraction += phaseIncrement;
-        uint32_t indexIncrement = (phaseFraction >> kNumPhaseBits);
-        phaseFraction &= kPhaseMask;
-
-        // time to fetch another sample
-        while (indexIncrement--) {
-
-            inputIndex++;
-            if (inputIndex == mBuffer.frameCount) {
-                inputIndex = 0;
-                provider->releaseBuffer(&mBuffer);
-                mBuffer.frameCount = inFrameCount;
-                provider->getNextBuffer(&mBuffer);
-                if (mBuffer.raw == NULL) {
-                    goto save_state;  // ugly, but efficient
-                }
-                // ALOGW("New buffer: offset=%p, frames=%dn", mBuffer.raw, mBuffer.frameCount);
-                in = mBuffer.i16;
-            }
-
-            // advance sample state
-            advance(&left, in[inputIndex]);
-        }
-    }
-
-save_state:
-    // ALOGW("Done: index=%d, fraction=%u", inputIndex, phaseFraction);
-    mInputIndex = inputIndex;
-    mPhaseFraction = phaseFraction;
-    return outputIndex;
-}
-
-// ----------------------------------------------------------------------------
-} // namespace android
diff --git a/services/audioflinger/AudioResamplerCubic.h b/services/audioflinger/AudioResamplerCubic.h
deleted file mode 100644
index 4b45b0b..0000000
--- a/services/audioflinger/AudioResamplerCubic.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_RESAMPLER_CUBIC_H
-#define ANDROID_AUDIO_RESAMPLER_CUBIC_H
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <cutils/log.h>
-
-#include "AudioResampler.h"
-
-namespace android {
-// ----------------------------------------------------------------------------
-
-class AudioResamplerCubic : public AudioResampler {
-public:
-    AudioResamplerCubic(int inChannelCount, int32_t sampleRate) :
-        AudioResampler(inChannelCount, sampleRate, MED_QUALITY) {
-    }
-    virtual size_t resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-private:
-    // number of bits used in interpolation multiply - 14 bits avoids overflow
-    static const int kNumInterpBits = 14;
-
-    // bits to shift the phase fraction down to avoid overflow
-    static const int kPreInterpShift = kNumPhaseBits - kNumInterpBits;
-    typedef struct {
-        int32_t a, b, c, y0, y1, y2, y3;
-    } state;
-    void init();
-    size_t resampleMono16(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-    size_t resampleStereo16(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-    static inline int32_t interp(state* p, int32_t x) {
-        return (((((p->a * x >> 14) + p->b) * x >> 14) + p->c) * x >> 14) + p->y1;
-    }
-    static inline void advance(state* p, int16_t in) {
-        p->y0 = p->y1;
-        p->y1 = p->y2;
-        p->y2 = p->y3;
-        p->y3 = in;
-        p->a = (3 * (p->y1 - p->y2) - p->y0 + p->y3) >> 1;
-        p->b = (p->y2 << 1) + p->y0 - (((5 * p->y1 + p->y3)) >> 1);
-        p->c = (p->y2 - p->y0) >> 1;
-    }
-    state left, right;
-};
-
-// ----------------------------------------------------------------------------
-} // namespace android
-
-#endif /*ANDROID_AUDIO_RESAMPLER_CUBIC_H*/
diff --git a/services/audioflinger/AudioResamplerDyn.cpp b/services/audioflinger/AudioResamplerDyn.cpp
deleted file mode 100644
index e615700..0000000
--- a/services/audioflinger/AudioResamplerDyn.cpp
+++ /dev/null
@@ -1,620 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioResamplerDyn"
-//#define LOG_NDEBUG 0
-
-#include <malloc.h>
-#include <string.h>
-#include <stdlib.h>
-#include <dlfcn.h>
-#include <math.h>
-
-#include <cutils/compiler.h>
-#include <cutils/properties.h>
-#include <utils/Debug.h>
-#include <utils/Log.h>
-#include <audio_utils/primitives.h>
-
-#include "AudioResamplerFirOps.h" // USE_NEON and USE_INLINE_ASSEMBLY defined here
-#include "AudioResamplerFirProcess.h"
-#include "AudioResamplerFirProcessNeon.h"
-#include "AudioResamplerFirGen.h" // requires math.h
-#include "AudioResamplerDyn.h"
-
-//#define DEBUG_RESAMPLER
-
-namespace android {
-
-/*
- * InBuffer is a type agnostic input buffer.
- *
- * Layout of the state buffer for halfNumCoefs=8.
- *
- * [rrrrrrppppppppnnnnnnnnrrrrrrrrrrrrrrrrrrr.... rrrrrrr]
- *  S            I                                R
- *
- * S = mState
- * I = mImpulse
- * R = mRingFull
- * p = past samples, convoluted with the (p)ositive side of sinc()
- * n = future samples, convoluted with the (n)egative side of sinc()
- * r = extra space for implementing the ring buffer
- */
-
-template<typename TC, typename TI, typename TO>
-AudioResamplerDyn<TC, TI, TO>::InBuffer::InBuffer()
-    : mState(NULL), mImpulse(NULL), mRingFull(NULL), mStateCount(0)
-{
-}
-
-template<typename TC, typename TI, typename TO>
-AudioResamplerDyn<TC, TI, TO>::InBuffer::~InBuffer()
-{
-    init();
-}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::InBuffer::init()
-{
-    free(mState);
-    mState = NULL;
-    mImpulse = NULL;
-    mRingFull = NULL;
-    mStateCount = 0;
-}
-
-// resizes the state buffer to accommodate the appropriate filter length
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::InBuffer::resize(int CHANNELS, int halfNumCoefs)
-{
-    // calculate desired state size
-    size_t stateCount = halfNumCoefs * CHANNELS * 2 * kStateSizeMultipleOfFilterLength;
-
-    // check if buffer needs resizing
-    if (mState
-            && stateCount == mStateCount
-            && mRingFull-mState == (ssize_t) (mStateCount-halfNumCoefs*CHANNELS)) {
-        return;
-    }
-
-    // create new buffer
-    TI* state = NULL;
-    (void)posix_memalign(reinterpret_cast<void**>(&state), 32, stateCount*sizeof(*state));
-    memset(state, 0, stateCount*sizeof(*state));
-
-    // attempt to preserve state
-    if (mState) {
-        TI* srcLo = mImpulse - halfNumCoefs*CHANNELS;
-        TI* srcHi = mImpulse + halfNumCoefs*CHANNELS;
-        TI* dst = state;
-
-        if (srcLo < mState) {
-            dst += mState-srcLo;
-            srcLo = mState;
-        }
-        if (srcHi > mState + mStateCount) {
-            srcHi = mState + mStateCount;
-        }
-        memcpy(dst, srcLo, (srcHi - srcLo) * sizeof(*srcLo));
-        free(mState);
-    }
-
-    // set class member vars
-    mState = state;
-    mStateCount = stateCount;
-    mImpulse = state + halfNumCoefs*CHANNELS; // actually one sample greater than needed
-    mRingFull = state + mStateCount - halfNumCoefs*CHANNELS;
-}
-
-// copy in the input data into the head (impulse+halfNumCoefs) of the buffer.
-template<typename TC, typename TI, typename TO>
-template<int CHANNELS>
-void AudioResamplerDyn<TC, TI, TO>::InBuffer::readAgain(TI*& impulse, const int halfNumCoefs,
-        const TI* const in, const size_t inputIndex)
-{
-    TI* head = impulse + halfNumCoefs*CHANNELS;
-    for (size_t i=0 ; i<CHANNELS ; i++) {
-        head[i] = in[inputIndex*CHANNELS + i];
-    }
-}
-
-// advance the impulse pointer, and load in data into the head (impulse+halfNumCoefs)
-template<typename TC, typename TI, typename TO>
-template<int CHANNELS>
-void AudioResamplerDyn<TC, TI, TO>::InBuffer::readAdvance(TI*& impulse, const int halfNumCoefs,
-        const TI* const in, const size_t inputIndex)
-{
-    impulse += CHANNELS;
-
-    if (CC_UNLIKELY(impulse >= mRingFull)) {
-        const size_t shiftDown = mRingFull - mState - halfNumCoefs*CHANNELS;
-        memcpy(mState, mState+shiftDown, halfNumCoefs*CHANNELS*2*sizeof(TI));
-        impulse -= shiftDown;
-    }
-    readAgain<CHANNELS>(impulse, halfNumCoefs, in, inputIndex);
-}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::Constants::set(
-        int L, int halfNumCoefs, int inSampleRate, int outSampleRate)
-{
-    int bits = 0;
-    int lscale = inSampleRate/outSampleRate < 2 ? L - 1 :
-            static_cast<int>(static_cast<uint64_t>(L)*inSampleRate/outSampleRate);
-    for (int i=lscale; i; ++bits, i>>=1)
-        ;
-    mL = L;
-    mShift = kNumPhaseBits - bits;
-    mHalfNumCoefs = halfNumCoefs;
-}
-
-template<typename TC, typename TI, typename TO>
-AudioResamplerDyn<TC, TI, TO>::AudioResamplerDyn(
-        int inChannelCount, int32_t sampleRate, src_quality quality)
-    : AudioResampler(inChannelCount, sampleRate, quality),
-      mResampleFunc(0), mFilterSampleRate(0), mFilterQuality(DEFAULT_QUALITY),
-    mCoefBuffer(NULL)
-{
-    mVolumeSimd[0] = mVolumeSimd[1] = 0;
-    // The AudioResampler base class assumes we are always ready for 1:1 resampling.
-    // We reset mInSampleRate to 0, so setSampleRate() will calculate filters for
-    // setSampleRate() for 1:1. (May be removed if precalculated filters are used.)
-    mInSampleRate = 0;
-    mConstants.set(128, 8, mSampleRate, mSampleRate); // TODO: set better
-}
-
-template<typename TC, typename TI, typename TO>
-AudioResamplerDyn<TC, TI, TO>::~AudioResamplerDyn()
-{
-    free(mCoefBuffer);
-}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::init()
-{
-    mFilterSampleRate = 0; // always trigger new filter generation
-    mInBuffer.init();
-}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::setVolume(float left, float right)
-{
-    AudioResampler::setVolume(left, right);
-    if (is_same<TO, float>::value || is_same<TO, double>::value) {
-        mVolumeSimd[0] = static_cast<TO>(left);
-        mVolumeSimd[1] = static_cast<TO>(right);
-    } else {  // integer requires scaling to U4_28 (rounding down)
-        // integer volumes are clamped to 0 to UNITY_GAIN so there
-        // are no issues with signed overflow.
-        mVolumeSimd[0] = u4_28_from_float(clampFloatVol(left));
-        mVolumeSimd[1] = u4_28_from_float(clampFloatVol(right));
-    }
-}
-
-template<typename T> T max(T a, T b) {return a > b ? a : b;}
-
-template<typename T> T absdiff(T a, T b) {return a > b ? a - b : b - a;}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::createKaiserFir(Constants &c,
-        double stopBandAtten, int inSampleRate, int outSampleRate, double tbwCheat)
-{
-    TC* buf = NULL;
-    static const double atten = 0.9998;   // to avoid ripple overflow
-    double fcr;
-    double tbw = firKaiserTbw(c.mHalfNumCoefs, stopBandAtten);
-
-    (void)posix_memalign(reinterpret_cast<void**>(&buf), 32, (c.mL+1)*c.mHalfNumCoefs*sizeof(TC));
-    if (inSampleRate < outSampleRate) { // upsample
-        fcr = max(0.5*tbwCheat - tbw/2, tbw/2);
-    } else { // downsample
-        fcr = max(0.5*tbwCheat*outSampleRate/inSampleRate - tbw/2, tbw/2);
-    }
-    // create and set filter
-    firKaiserGen(buf, c.mL, c.mHalfNumCoefs, stopBandAtten, fcr, atten);
-    c.mFirCoefs = buf;
-    if (mCoefBuffer) {
-        free(mCoefBuffer);
-    }
-    mCoefBuffer = buf;
-#ifdef DEBUG_RESAMPLER
-    // print basic filter stats
-    printf("L:%d  hnc:%d  stopBandAtten:%lf  fcr:%lf  atten:%lf  tbw:%lf\n",
-            c.mL, c.mHalfNumCoefs, stopBandAtten, fcr, atten, tbw);
-    // test the filter and report results
-    double fp = (fcr - tbw/2)/c.mL;
-    double fs = (fcr + tbw/2)/c.mL;
-    double passMin, passMax, passRipple;
-    double stopMax, stopRipple;
-    testFir(buf, c.mL, c.mHalfNumCoefs, fp, fs, /*passSteps*/ 1000, /*stopSteps*/ 100000,
-            passMin, passMax, passRipple, stopMax, stopRipple);
-    printf("passband(%lf, %lf): %.8lf %.8lf %.8lf\n", 0., fp, passMin, passMax, passRipple);
-    printf("stopband(%lf, %lf): %.8lf %.3lf\n", fs, 0.5, stopMax, stopRipple);
-#endif
-}
-
-// recursive gcd. Using objdump, it appears the tail recursion is converted to a while loop.
-static int gcd(int n, int m)
-{
-    if (m == 0) {
-        return n;
-    }
-    return gcd(m, n % m);
-}
-
-static bool isClose(int32_t newSampleRate, int32_t prevSampleRate,
-        int32_t filterSampleRate, int32_t outSampleRate)
-{
-
-    // different upsampling ratios do not need a filter change.
-    if (filterSampleRate != 0
-            && filterSampleRate < outSampleRate
-            && newSampleRate < outSampleRate)
-        return true;
-
-    // check design criteria again if downsampling is detected.
-    int pdiff = absdiff(newSampleRate, prevSampleRate);
-    int adiff = absdiff(newSampleRate, filterSampleRate);
-
-    // allow up to 6% relative change increments.
-    // allow up to 12% absolute change increments (from filter design)
-    return pdiff < prevSampleRate>>4 && adiff < filterSampleRate>>3;
-}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::setSampleRate(int32_t inSampleRate)
-{
-    if (mInSampleRate == inSampleRate) {
-        return;
-    }
-    int32_t oldSampleRate = mInSampleRate;
-    uint32_t oldPhaseWrapLimit = mConstants.mL << mConstants.mShift;
-    bool useS32 = false;
-
-    mInSampleRate = inSampleRate;
-
-    // TODO: Add precalculated Equiripple filters
-
-    if (mFilterQuality != getQuality() ||
-            !isClose(inSampleRate, oldSampleRate, mFilterSampleRate, mSampleRate)) {
-        mFilterSampleRate = inSampleRate;
-        mFilterQuality = getQuality();
-
-        // Begin Kaiser Filter computation
-        //
-        // The quantization floor for S16 is about 96db - 10*log_10(#length) + 3dB.
-        // Keep the stop band attenuation no greater than 84-85dB for 32 length S16 filters
-        //
-        // For s32 we keep the stop band attenuation at the same as 16b resolution, about
-        // 96-98dB
-        //
-
-        double stopBandAtten;
-        double tbwCheat = 1.; // how much we "cheat" into aliasing
-        int halfLength;
-        if (mFilterQuality == DYN_HIGH_QUALITY) {
-            // 32b coefficients, 64 length
-            useS32 = true;
-            stopBandAtten = 98.;
-            if (inSampleRate >= mSampleRate * 4) {
-                halfLength = 48;
-            } else if (inSampleRate >= mSampleRate * 2) {
-                halfLength = 40;
-            } else {
-                halfLength = 32;
-            }
-        } else if (mFilterQuality == DYN_LOW_QUALITY) {
-            // 16b coefficients, 16-32 length
-            useS32 = false;
-            stopBandAtten = 80.;
-            if (inSampleRate >= mSampleRate * 4) {
-                halfLength = 24;
-            } else if (inSampleRate >= mSampleRate * 2) {
-                halfLength = 16;
-            } else {
-                halfLength = 8;
-            }
-            if (inSampleRate <= mSampleRate) {
-                tbwCheat = 1.05;
-            } else {
-                tbwCheat = 1.03;
-            }
-        } else { // DYN_MED_QUALITY
-            // 16b coefficients, 32-64 length
-            // note: > 64 length filters with 16b coefs can have quantization noise problems
-            useS32 = false;
-            stopBandAtten = 84.;
-            if (inSampleRate >= mSampleRate * 4) {
-                halfLength = 32;
-            } else if (inSampleRate >= mSampleRate * 2) {
-                halfLength = 24;
-            } else {
-                halfLength = 16;
-            }
-            if (inSampleRate <= mSampleRate) {
-                tbwCheat = 1.03;
-            } else {
-                tbwCheat = 1.01;
-            }
-        }
-
-        // determine the number of polyphases in the filterbank.
-        // for 16b, it is desirable to have 2^(16/2) = 256 phases.
-        // https://ccrma.stanford.edu/~jos/resample/Relation_Interpolation_Error_Quantization.html
-        //
-        // We are a bit more lax on this.
-
-        int phases = mSampleRate / gcd(mSampleRate, inSampleRate);
-
-        // TODO: Once dynamic sample rate change is an option, the code below
-        // should be modified to execute only when dynamic sample rate change is enabled.
-        //
-        // as above, #phases less than 63 is too few phases for accurate linear interpolation.
-        // we increase the phases to compensate, but more phases means more memory per
-        // filter and more time to compute the filter.
-        //
-        // if we know that the filter will be used for dynamic sample rate changes,
-        // that would allow us skip this part for fixed sample rate resamplers.
-        //
-        while (phases<63) {
-            phases *= 2; // this code only needed to support dynamic rate changes
-        }
-
-        if (phases>=256) {  // too many phases, always interpolate
-            phases = 127;
-        }
-
-        // create the filter
-        mConstants.set(phases, halfLength, inSampleRate, mSampleRate);
-        createKaiserFir(mConstants, stopBandAtten,
-                inSampleRate, mSampleRate, tbwCheat);
-    } // End Kaiser filter
-
-    // update phase and state based on the new filter.
-    const Constants& c(mConstants);
-    mInBuffer.resize(mChannelCount, c.mHalfNumCoefs);
-    const uint32_t phaseWrapLimit = c.mL << c.mShift;
-    // try to preserve as much of the phase fraction as possible for on-the-fly changes
-    mPhaseFraction = static_cast<unsigned long long>(mPhaseFraction)
-            * phaseWrapLimit / oldPhaseWrapLimit;
-    mPhaseFraction %= phaseWrapLimit; // should not do anything, but just in case.
-    mPhaseIncrement = static_cast<uint32_t>(static_cast<uint64_t>(phaseWrapLimit)
-            * inSampleRate / mSampleRate);
-
-    // determine which resampler to use
-    // check if locked phase (works only if mPhaseIncrement has no "fractional phase bits")
-    int locked = (mPhaseIncrement << (sizeof(mPhaseIncrement)*8 - c.mShift)) == 0;
-    if (locked) {
-        mPhaseFraction = mPhaseFraction >> c.mShift << c.mShift; // remove fractional phase
-    }
-
-    // stride is the minimum number of filter coefficients processed per loop iteration.
-    // We currently only allow a stride of 16 to match with SIMD processing.
-    // This means that the filter length must be a multiple of 16,
-    // or half the filter length (mHalfNumCoefs) must be a multiple of 8.
-    //
-    // Note: A stride of 2 is achieved with non-SIMD processing.
-    int stride = ((c.mHalfNumCoefs & 7) == 0) ? 16 : 2;
-    LOG_ALWAYS_FATAL_IF(stride < 16, "Resampler stride must be 16 or more");
-    LOG_ALWAYS_FATAL_IF(mChannelCount < 1 || mChannelCount > 8,
-            "Resampler channels(%d) must be between 1 to 8", mChannelCount);
-    // stride 16 (falls back to stride 2 for machines that do not support NEON)
-    if (locked) {
-        switch (mChannelCount) {
-        case 1:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<1, true, 16>;
-            break;
-        case 2:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<2, true, 16>;
-            break;
-        case 3:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<3, true, 16>;
-            break;
-        case 4:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<4, true, 16>;
-            break;
-        case 5:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<5, true, 16>;
-            break;
-        case 6:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<6, true, 16>;
-            break;
-        case 7:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<7, true, 16>;
-            break;
-        case 8:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<8, true, 16>;
-            break;
-        }
-    } else {
-        switch (mChannelCount) {
-        case 1:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<1, false, 16>;
-            break;
-        case 2:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<2, false, 16>;
-            break;
-        case 3:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<3, false, 16>;
-            break;
-        case 4:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<4, false, 16>;
-            break;
-        case 5:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<5, false, 16>;
-            break;
-        case 6:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<6, false, 16>;
-            break;
-        case 7:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<7, false, 16>;
-            break;
-        case 8:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<8, false, 16>;
-            break;
-        }
-    }
-#ifdef DEBUG_RESAMPLER
-    printf("channels:%d  %s  stride:%d  %s  coef:%d  shift:%d\n",
-            mChannelCount, locked ? "locked" : "interpolated",
-            stride, useS32 ? "S32" : "S16", 2*c.mHalfNumCoefs, c.mShift);
-#endif
-}
-
-template<typename TC, typename TI, typename TO>
-size_t AudioResamplerDyn<TC, TI, TO>::resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider)
-{
-    return (this->*mResampleFunc)(reinterpret_cast<TO*>(out), outFrameCount, provider);
-}
-
-template<typename TC, typename TI, typename TO>
-template<int CHANNELS, bool LOCKED, int STRIDE>
-size_t AudioResamplerDyn<TC, TI, TO>::resample(TO* out, size_t outFrameCount,
-        AudioBufferProvider* provider)
-{
-    // TODO Mono -> Mono is not supported. OUTPUT_CHANNELS reflects minimum of stereo out.
-    const int OUTPUT_CHANNELS = (CHANNELS < 2) ? 2 : CHANNELS;
-    const Constants& c(mConstants);
-    const TC* const coefs = mConstants.mFirCoefs;
-    TI* impulse = mInBuffer.getImpulse();
-    size_t inputIndex = 0;
-    uint32_t phaseFraction = mPhaseFraction;
-    const uint32_t phaseIncrement = mPhaseIncrement;
-    size_t outputIndex = 0;
-    size_t outputSampleCount = outFrameCount * OUTPUT_CHANNELS;
-    const uint32_t phaseWrapLimit = c.mL << c.mShift;
-    size_t inFrameCount = (phaseIncrement * (uint64_t)outFrameCount + phaseFraction)
-            / phaseWrapLimit;
-    // sanity check that inFrameCount is in signed 32 bit integer range.
-    ALOG_ASSERT(0 <= inFrameCount && inFrameCount < (1U << 31));
-
-    //ALOGV("inFrameCount:%d  outFrameCount:%d"
-    //        "  phaseIncrement:%u  phaseFraction:%u  phaseWrapLimit:%u",
-    //        inFrameCount, outFrameCount, phaseIncrement, phaseFraction, phaseWrapLimit);
-
-    // NOTE: be very careful when modifying the code here. register
-    // pressure is very high and a small change might cause the compiler
-    // to generate far less efficient code.
-    // Always sanity check the result with objdump or test-resample.
-
-    // the following logic is a bit convoluted to keep the main processing loop
-    // as tight as possible with register allocation.
-    while (outputIndex < outputSampleCount) {
-        //ALOGV("LOOP: inFrameCount:%d  outputIndex:%d  outFrameCount:%d"
-        //        "  phaseFraction:%u  phaseWrapLimit:%u",
-        //        inFrameCount, outputIndex, outFrameCount, phaseFraction, phaseWrapLimit);
-
-        // check inputIndex overflow
-        ALOG_ASSERT(inputIndex <= mBuffer.frameCount, "inputIndex%d > frameCount%d",
-                inputIndex, mBuffer.frameCount);
-        // Buffer is empty, fetch a new one if necessary (inFrameCount > 0).
-        // We may not fetch a new buffer if the existing data is sufficient.
-        while (mBuffer.frameCount == 0 && inFrameCount > 0) {
-            mBuffer.frameCount = inFrameCount;
-            provider->getNextBuffer(&mBuffer);
-            if (mBuffer.raw == NULL) {
-                goto resample_exit;
-            }
-            inFrameCount -= mBuffer.frameCount;
-            if (phaseFraction >= phaseWrapLimit) { // read in data
-                mInBuffer.template readAdvance<CHANNELS>(
-                        impulse, c.mHalfNumCoefs,
-                        reinterpret_cast<TI*>(mBuffer.raw), inputIndex);
-                inputIndex++;
-                phaseFraction -= phaseWrapLimit;
-                while (phaseFraction >= phaseWrapLimit) {
-                    if (inputIndex >= mBuffer.frameCount) {
-                        inputIndex = 0;
-                        provider->releaseBuffer(&mBuffer);
-                        break;
-                    }
-                    mInBuffer.template readAdvance<CHANNELS>(
-                            impulse, c.mHalfNumCoefs,
-                            reinterpret_cast<TI*>(mBuffer.raw), inputIndex);
-                    inputIndex++;
-                    phaseFraction -= phaseWrapLimit;
-                }
-            }
-        }
-        const TI* const in = reinterpret_cast<const TI*>(mBuffer.raw);
-        const size_t frameCount = mBuffer.frameCount;
-        const int coefShift = c.mShift;
-        const int halfNumCoefs = c.mHalfNumCoefs;
-        const TO* const volumeSimd = mVolumeSimd;
-
-        // main processing loop
-        while (CC_LIKELY(outputIndex < outputSampleCount)) {
-            // caution: fir() is inlined and may be large.
-            // output will be loaded with the appropriate values
-            //
-            // from the input samples in impulse[-halfNumCoefs+1]... impulse[halfNumCoefs]
-            // from the polyphase filter of (phaseFraction / phaseWrapLimit) in coefs.
-            //
-            //ALOGV("LOOP2: inFrameCount:%d  outputIndex:%d  outFrameCount:%d"
-            //        "  phaseFraction:%u  phaseWrapLimit:%u",
-            //        inFrameCount, outputIndex, outFrameCount, phaseFraction, phaseWrapLimit);
-            ALOG_ASSERT(phaseFraction < phaseWrapLimit);
-            fir<CHANNELS, LOCKED, STRIDE>(
-                    &out[outputIndex],
-                    phaseFraction, phaseWrapLimit,
-                    coefShift, halfNumCoefs, coefs,
-                    impulse, volumeSimd);
-
-            outputIndex += OUTPUT_CHANNELS;
-
-            phaseFraction += phaseIncrement;
-            while (phaseFraction >= phaseWrapLimit) {
-                if (inputIndex >= frameCount) {
-                    goto done;  // need a new buffer
-                }
-                mInBuffer.template readAdvance<CHANNELS>(impulse, halfNumCoefs, in, inputIndex);
-                inputIndex++;
-                phaseFraction -= phaseWrapLimit;
-            }
-        }
-done:
-        // We arrive here when we're finished or when the input buffer runs out.
-        // Regardless we need to release the input buffer if we've acquired it.
-        if (inputIndex > 0) {  // we've acquired a buffer (alternatively could check frameCount)
-            ALOG_ASSERT(inputIndex == frameCount, "inputIndex(%d) != frameCount(%d)",
-                    inputIndex, frameCount);  // must have been fully read.
-            inputIndex = 0;
-            provider->releaseBuffer(&mBuffer);
-            ALOG_ASSERT(mBuffer.frameCount == 0);
-        }
-    }
-
-resample_exit:
-    // inputIndex must be zero in all three cases:
-    // (1) the buffer never was been acquired; (2) the buffer was
-    // released at "done:"; or (3) getNextBuffer() failed.
-    ALOG_ASSERT(inputIndex == 0, "Releasing: inputindex:%d frameCount:%d  phaseFraction:%u",
-            inputIndex, mBuffer.frameCount, phaseFraction);
-    ALOG_ASSERT(mBuffer.frameCount == 0); // there must be no frames in the buffer
-    mInBuffer.setImpulse(impulse);
-    mPhaseFraction = phaseFraction;
-    return outputIndex / OUTPUT_CHANNELS;
-}
-
-/* instantiate templates used by AudioResampler::create */
-template class AudioResamplerDyn<float, float, float>;
-template class AudioResamplerDyn<int16_t, int16_t, int32_t>;
-template class AudioResamplerDyn<int32_t, int16_t, int32_t>;
-
-// ----------------------------------------------------------------------------
-} // namespace android
diff --git a/services/audioflinger/AudioResamplerDyn.h b/services/audioflinger/AudioResamplerDyn.h
deleted file mode 100644
index 3b1c381..0000000
--- a/services/audioflinger/AudioResamplerDyn.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_RESAMPLER_DYN_H
-#define ANDROID_AUDIO_RESAMPLER_DYN_H
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <cutils/log.h>
-
-#include "AudioResampler.h"
-
-namespace android {
-
-/* AudioResamplerDyn
- *
- * This class template is used for floating point and integer resamplers.
- *
- * Type variables:
- * TC = filter coefficient type (one of int16_t, int32_t, or float)
- * TI = input data type (one of int16_t or float)
- * TO = output data type (one of int32_t or float)
- *
- * For integer input data types TI, the coefficient type TC is either int16_t or int32_t.
- * For float input data types TI, the coefficient type TC is float.
- */
-
-template<typename TC, typename TI, typename TO>
-class AudioResamplerDyn: public AudioResampler {
-public:
-    AudioResamplerDyn(int inChannelCount,
-            int32_t sampleRate, src_quality quality);
-
-    virtual ~AudioResamplerDyn();
-
-    virtual void init();
-
-    virtual void setSampleRate(int32_t inSampleRate);
-
-    virtual void setVolume(float left, float right);
-
-    virtual size_t resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-
-private:
-
-    class Constants { // stores the filter constants.
-    public:
-        Constants() :
-            mL(0), mShift(0), mHalfNumCoefs(0), mFirCoefs(NULL)
-        {}
-        void set(int L, int halfNumCoefs,
-                int inSampleRate, int outSampleRate);
-
-                 int mL;            // interpolation phases in the filter.
-                 int mShift;        // right shift to get polyphase index
-        unsigned int mHalfNumCoefs; // filter half #coefs
-           const TC* mFirCoefs;     // polyphase filter bank
-    };
-
-    class InBuffer { // buffer management for input type TI
-    public:
-        InBuffer();
-        ~InBuffer();
-        void init();
-
-        void resize(int CHANNELS, int halfNumCoefs);
-
-        // used for direct management of the mImpulse pointer
-        inline TI* getImpulse() {
-            return mImpulse;
-        }
-
-        inline void setImpulse(TI *impulse) {
-            mImpulse = impulse;
-        }
-
-        template<int CHANNELS>
-        inline void readAgain(TI*& impulse, const int halfNumCoefs,
-                const TI* const in, const size_t inputIndex);
-
-        template<int CHANNELS>
-        inline void readAdvance(TI*& impulse, const int halfNumCoefs,
-                const TI* const in, const size_t inputIndex);
-
-    private:
-        // tuning parameter guidelines: 2 <= multiple <= 8
-        static const int kStateSizeMultipleOfFilterLength = 4;
-
-        // in general, mRingFull = mState + mStateSize - halfNumCoefs*CHANNELS.
-           TI* mState;      // base pointer for the input buffer storage
-           TI* mImpulse;    // current location of the impulse response (centered)
-           TI* mRingFull;   // mState <= mImpulse < mRingFull
-        size_t mStateCount; // size of state in units of TI.
-    };
-
-    void createKaiserFir(Constants &c, double stopBandAtten,
-            int inSampleRate, int outSampleRate, double tbwCheat);
-
-    template<int CHANNELS, bool LOCKED, int STRIDE>
-    size_t resample(TO* out, size_t outFrameCount, AudioBufferProvider* provider);
-
-    // define a pointer to member function type for resample
-    typedef size_t (AudioResamplerDyn<TC, TI, TO>::*resample_ABP_t)(TO* out,
-            size_t outFrameCount, AudioBufferProvider* provider);
-
-    // data - the contiguous storage and layout of these is important.
-           InBuffer mInBuffer;
-          Constants mConstants;        // current set of coefficient parameters
-    TO __attribute__ ((aligned (8))) mVolumeSimd[2]; // must be aligned or NEON may crash
-     resample_ABP_t mResampleFunc;     // called function for resampling
-            int32_t mFilterSampleRate; // designed filter sample rate.
-        src_quality mFilterQuality;    // designed filter quality.
-              void* mCoefBuffer;       // if a filter is created, this is not null
-};
-
-} // namespace android
-
-#endif /*ANDROID_AUDIO_RESAMPLER_DYN_H*/
diff --git a/services/audioflinger/AudioResamplerFirOps.h b/services/audioflinger/AudioResamplerFirOps.h
deleted file mode 100644
index 2a26496..0000000
--- a/services/audioflinger/AudioResamplerFirOps.h
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_RESAMPLER_FIR_OPS_H
-#define ANDROID_AUDIO_RESAMPLER_FIR_OPS_H
-
-namespace android {
-
-#if defined(__arm__) && !defined(__thumb__)
-#define USE_INLINE_ASSEMBLY (true)
-#else
-#define USE_INLINE_ASSEMBLY (false)
-#endif
-
-#if defined(__aarch64__) || defined(__ARM_NEON__)
-#ifndef USE_NEON
-#define USE_NEON (true)
-#endif
-#else
-#define USE_NEON (false)
-#endif
-#if USE_NEON
-#include <arm_neon.h>
-#endif
-
-template<typename T, typename U>
-struct is_same
-{
-    static const bool value = false;
-};
-
-template<typename T>
-struct is_same<T, T>  // partial specialization
-{
-    static const bool value = true;
-};
-
-static inline
-int32_t mulRL(int left, int32_t in, uint32_t vRL)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    if (left) {
-        asm( "smultb %[out], %[in], %[vRL] \n"
-             : [out]"=r"(out)
-             : [in]"%r"(in), [vRL]"r"(vRL)
-             : );
-    } else {
-        asm( "smultt %[out], %[in], %[vRL] \n"
-             : [out]"=r"(out)
-             : [in]"%r"(in), [vRL]"r"(vRL)
-             : );
-    }
-    return out;
-#else
-    int16_t v = left ? static_cast<int16_t>(vRL) : static_cast<int16_t>(vRL>>16);
-    return static_cast<int32_t>((static_cast<int64_t>(in) * v) >> 16);
-#endif
-}
-
-static inline
-int32_t mulAdd(int16_t in, int16_t v, int32_t a)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    asm( "smlabb %[out], %[v], %[in], %[a] \n"
-         : [out]"=r"(out)
-         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
-         : );
-    return out;
-#else
-    return a + v * in;
-#endif
-}
-
-static inline
-int32_t mulAdd(int16_t in, int32_t v, int32_t a)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    asm( "smlawb %[out], %[v], %[in], %[a] \n"
-         : [out]"=r"(out)
-         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
-         : );
-    return out;
-#else
-    return a + static_cast<int32_t>((static_cast<int64_t>(v) * in) >> 16);
-#endif
-}
-
-static inline
-int32_t mulAdd(int32_t in, int32_t v, int32_t a)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    asm( "smmla %[out], %[v], %[in], %[a] \n"
-         : [out]"=r"(out)
-         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
-         : );
-    return out;
-#else
-    return a + static_cast<int32_t>((static_cast<int64_t>(v) * in) >> 32);
-#endif
-}
-
-static inline
-int32_t mulAddRL(int left, uint32_t inRL, int16_t v, int32_t a)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    if (left) {
-        asm( "smlabb %[out], %[v], %[inRL], %[a] \n"
-             : [out]"=r"(out)
-             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
-             : );
-    } else {
-        asm( "smlabt %[out], %[v], %[inRL], %[a] \n"
-             : [out]"=r"(out)
-             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
-             : );
-    }
-    return out;
-#else
-    int16_t s = left ? static_cast<int16_t>(inRL) : static_cast<int16_t>(inRL>>16);
-    return a + v * s;
-#endif
-}
-
-static inline
-int32_t mulAddRL(int left, uint32_t inRL, int32_t v, int32_t a)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    if (left) {
-        asm( "smlawb %[out], %[v], %[inRL], %[a] \n"
-             : [out]"=r"(out)
-             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
-             : );
-    } else {
-        asm( "smlawt %[out], %[v], %[inRL], %[a] \n"
-             : [out]"=r"(out)
-             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
-             : );
-    }
-    return out;
-#else
-    int16_t s = left ? static_cast<int16_t>(inRL) : static_cast<int16_t>(inRL>>16);
-    return a + static_cast<int32_t>((static_cast<int64_t>(v) * s) >> 16);
-#endif
-}
-
-} // namespace android
-
-#endif /*ANDROID_AUDIO_RESAMPLER_FIR_OPS_H*/
diff --git a/services/audioflinger/AudioResamplerFirProcess.h b/services/audioflinger/AudioResamplerFirProcess.h
deleted file mode 100644
index 176202e..0000000
--- a/services/audioflinger/AudioResamplerFirProcess.h
+++ /dev/null
@@ -1,439 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_H
-#define ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_H
-
-namespace android {
-
-// depends on AudioResamplerFirOps.h
-
-/* variant for input type TI = int16_t input samples */
-template<typename TC>
-static inline
-void mac(int32_t& l, int32_t& r, TC coef, const int16_t* samples)
-{
-    uint32_t rl = *reinterpret_cast<const uint32_t*>(samples);
-    l = mulAddRL(1, rl, coef, l);
-    r = mulAddRL(0, rl, coef, r);
-}
-
-template<typename TC>
-static inline
-void mac(int32_t& l, TC coef, const int16_t* samples)
-{
-    l = mulAdd(samples[0], coef, l);
-}
-
-/* variant for input type TI = float input samples */
-template<typename TC>
-static inline
-void mac(float& l, float& r, TC coef,  const float* samples)
-{
-    l += *samples++ * coef;
-    r += *samples * coef;
-}
-
-template<typename TC>
-static inline
-void mac(float& l, TC coef,  const float* samples)
-{
-    l += *samples * coef;
-}
-
-/* variant for output type TO = int32_t output samples */
-static inline
-int32_t volumeAdjust(int32_t value, int32_t volume)
-{
-    return 2 * mulRL(0, value, volume);  // Note: only use top 16b
-}
-
-/* variant for output type TO = float output samples */
-static inline
-float volumeAdjust(float value, float volume)
-{
-    return value * volume;
-}
-
-/*
- * Helper template functions for loop unrolling accumulator operations.
- *
- * Unrolling the loops achieves about 2x gain.
- * Using a recursive template rather than an array of TO[] for the accumulator
- * values is an additional 10-20% gain.
- */
-
-template<int CHANNELS, typename TO>
-class Accumulator : public Accumulator<CHANNELS-1, TO> // recursive
-{
-public:
-    inline void clear() {
-        value = 0;
-        Accumulator<CHANNELS-1, TO>::clear();
-    }
-    template<typename TC, typename TI>
-    inline void acc(TC coef, const TI*& data) {
-        mac(value, coef, data++);
-        Accumulator<CHANNELS-1, TO>::acc(coef, data);
-    }
-    inline void volume(TO*& out, TO gain) {
-        *out++ = volumeAdjust(value, gain);
-        Accumulator<CHANNELS-1, TO>::volume(out, gain);
-    }
-
-    TO value; // one per recursive inherited base class
-};
-
-template<typename TO>
-class Accumulator<0, TO> {
-public:
-    inline void clear() {
-    }
-    template<typename TC, typename TI>
-    inline void acc(TC coef __unused, const TI*& data __unused) {
-    }
-    inline void volume(TO*& out __unused, TO gain __unused) {
-    }
-};
-
-template<typename TC, typename TINTERP>
-inline
-TC interpolate(TC coef_0, TC coef_1, TINTERP lerp)
-{
-    return lerp * (coef_1 - coef_0) + coef_0;
-}
-
-template<>
-inline
-int16_t interpolate<int16_t, uint32_t>(int16_t coef_0, int16_t coef_1, uint32_t lerp)
-{   // in some CPU architectures 16b x 16b multiplies are faster.
-    return (static_cast<int16_t>(lerp) * static_cast<int16_t>(coef_1 - coef_0) >> 15) + coef_0;
-}
-
-template<>
-inline
-int32_t interpolate<int32_t, uint32_t>(int32_t coef_0, int32_t coef_1, uint32_t lerp)
-{
-    return (lerp * static_cast<int64_t>(coef_1 - coef_0) >> 31) + coef_0;
-}
-
-/* class scope for passing in functions into templates */
-struct InterpCompute {
-    template<typename TC, typename TINTERP>
-    static inline
-    TC interpolatep(TC coef_0, TC coef_1, TINTERP lerp) {
-        return interpolate(coef_0, coef_1, lerp);
-    }
-
-    template<typename TC, typename TINTERP>
-    static inline
-    TC interpolaten(TC coef_0, TC coef_1, TINTERP lerp) {
-        return interpolate(coef_0, coef_1, lerp);
-    }
-};
-
-struct InterpNull {
-    template<typename TC, typename TINTERP>
-    static inline
-    TC interpolatep(TC coef_0, TC coef_1 __unused, TINTERP lerp __unused) {
-        return coef_0;
-    }
-
-    template<typename TC, typename TINTERP>
-    static inline
-    TC interpolaten(TC coef_0 __unused, TC coef_1, TINTERP lerp __unused) {
-        return coef_1;
-    }
-};
-
-/*
- * Calculates a single output frame (two samples).
- *
- * The Process*() functions compute both the positive half FIR dot product and
- * the negative half FIR dot product, accumulates, and then applies the volume.
- *
- * Use fir() to compute the proper coefficient pointers for a polyphase
- * filter bank.
- *
- * ProcessBase() is the fundamental processing template function.
- *
- * ProcessL() calls ProcessBase() with TFUNC = InterpNull, for fixed/locked phase.
- * Process() calls ProcessBase() with TFUNC = InterpCompute, for interpolated phase.
- */
-
-template <int CHANNELS, int STRIDE, typename TFUNC, typename TC, typename TI, typename TO,
-        typename TINTERP>
-static inline
-void ProcessBase(TO* const out,
-        size_t count,
-        const TC* coefsP,
-        const TC* coefsN,
-        const TI* sP,
-        const TI* sN,
-        TINTERP lerpP,
-        const TO* const volumeLR)
-{
-    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(CHANNELS > 0)
-
-    if (CHANNELS > 2) {
-        // TO accum[CHANNELS];
-        Accumulator<CHANNELS, TO> accum;
-
-        // for (int j = 0; j < CHANNELS; ++j) accum[j] = 0;
-        accum.clear();
-        for (size_t i = 0; i < count; ++i) {
-            TC c = TFUNC::interpolatep(coefsP[0], coefsP[count], lerpP);
-
-            // for (int j = 0; j < CHANNELS; ++j) mac(accum[j], c, sP + j);
-            const TI *tmp_data = sP; // tmp_ptr seems to work better
-            accum.acc(c, tmp_data);
-
-            coefsP++;
-            sP -= CHANNELS;
-            c = TFUNC::interpolaten(coefsN[count], coefsN[0], lerpP);
-
-            // for (int j = 0; j < CHANNELS; ++j) mac(accum[j], c, sN + j);
-            tmp_data = sN; // tmp_ptr seems faster than directly using sN
-            accum.acc(c, tmp_data);
-
-            coefsN++;
-            sN += CHANNELS;
-        }
-        // for (int j = 0; j < CHANNELS; ++j) out[j] += volumeAdjust(accum[j], volumeLR[0]);
-        TO *tmp_out = out; // may remove if const out definition changes.
-        accum.volume(tmp_out, volumeLR[0]);
-    } else if (CHANNELS == 2) {
-        TO l = 0;
-        TO r = 0;
-        for (size_t i = 0; i < count; ++i) {
-            mac(l, r, TFUNC::interpolatep(coefsP[0], coefsP[count], lerpP), sP);
-            coefsP++;
-            sP -= CHANNELS;
-            mac(l, r, TFUNC::interpolaten(coefsN[count], coefsN[0], lerpP), sN);
-            coefsN++;
-            sN += CHANNELS;
-        }
-        out[0] += volumeAdjust(l, volumeLR[0]);
-        out[1] += volumeAdjust(r, volumeLR[1]);
-    } else { /* CHANNELS == 1 */
-        TO l = 0;
-        for (size_t i = 0; i < count; ++i) {
-            mac(l, TFUNC::interpolatep(coefsP[0], coefsP[count], lerpP), sP);
-            coefsP++;
-            sP -= CHANNELS;
-            mac(l, TFUNC::interpolaten(coefsN[count], coefsN[0], lerpP), sN);
-            coefsN++;
-            sN += CHANNELS;
-        }
-        out[0] += volumeAdjust(l, volumeLR[0]);
-        out[1] += volumeAdjust(l, volumeLR[1]);
-    }
-}
-
-/* Calculates a single output frame from a polyphase resampling filter.
- * See Process() for parameter details.
- */
-template <int CHANNELS, int STRIDE, typename TC, typename TI, typename TO>
-static inline
-void ProcessL(TO* const out,
-        int count,
-        const TC* coefsP,
-        const TC* coefsN,
-        const TI* sP,
-        const TI* sN,
-        const TO* const volumeLR)
-{
-    ProcessBase<CHANNELS, STRIDE, InterpNull>(out, count, coefsP, coefsN, sP, sN, 0, volumeLR);
-}
-
-/*
- * Calculates a single output frame from a polyphase resampling filter,
- * with filter phase interpolation.
- *
- * @param out should point to the output buffer with space for at least one output frame.
- *
- * @param count should be half the size of the total filter length (halfNumCoefs), as we
- * use symmetry in filter coefficients to evaluate two dot products.
- *
- * @param coefsP is one phase of the polyphase filter bank of size halfNumCoefs, corresponding
- * to the positive sP.
- *
- * @param coefsN is one phase of the polyphase filter bank of size halfNumCoefs, corresponding
- * to the negative sN.
- *
- * @param coefsP1 is the next phase of coefsP (used for interpolation).
- *
- * @param coefsN1 is the next phase of coefsN (used for interpolation).
- *
- * @param sP is the positive half of the coefficients (as viewed by a convolution),
- * starting at the original samples pointer and decrementing (by CHANNELS).
- *
- * @param sN is the negative half of the samples (as viewed by a convolution),
- * starting at the original samples pointer + CHANNELS and incrementing (by CHANNELS).
- *
- * @param lerpP The fractional siting between the polyphase indices is given by the bits
- * below coefShift. See fir() for details.
- *
- * @param volumeLR is a pointer to an array of two 32 bit volume values, one per stereo channel,
- * expressed as a S32 integer or float.  A negative value inverts the channel 180 degrees.
- * The pointer volumeLR should be aligned to a minimum of 8 bytes.
- * A typical value for volume is 0x1000 to align to a unity gain output of 20.12.
- */
-template <int CHANNELS, int STRIDE, typename TC, typename TI, typename TO, typename TINTERP>
-static inline
-void Process(TO* const out,
-        int count,
-        const TC* coefsP,
-        const TC* coefsN,
-        const TC* coefsP1 __unused,
-        const TC* coefsN1 __unused,
-        const TI* sP,
-        const TI* sN,
-        TINTERP lerpP,
-        const TO* const volumeLR)
-{
-    ProcessBase<CHANNELS, STRIDE, InterpCompute>(out, count, coefsP, coefsN, sP, sN, lerpP,
-            volumeLR);
-}
-
-/*
- * Calculates a single output frame from input sample pointer.
- *
- * This sets up the params for the accelerated Process() and ProcessL()
- * functions to do the appropriate dot products.
- *
- * @param out should point to the output buffer with space for at least one output frame.
- *
- * @param phase is the fractional distance between input frames for interpolation:
- * phase >= 0  && phase < phaseWrapLimit.  It can be thought of as a rational fraction
- * of phase/phaseWrapLimit.
- *
- * @param phaseWrapLimit is #polyphases<<coefShift, where #polyphases is the number of polyphases
- * in the polyphase filter. Likewise, #polyphases can be obtained as (phaseWrapLimit>>coefShift).
- *
- * @param coefShift gives the bit alignment of the polyphase index in the phase parameter.
- *
- * @param halfNumCoefs is the half the number of coefficients per polyphase filter. Since the
- * overall filterbank is odd-length symmetric, only halfNumCoefs need be stored.
- *
- * @param coefs is the polyphase filter bank, starting at from polyphase index 0, and ranging to
- * and including the #polyphases.  Each polyphase of the filter has half-length halfNumCoefs
- * (due to symmetry).  The total size of the filter bank in coefficients is
- * (#polyphases+1)*halfNumCoefs.
- *
- * The filter bank coefs should be aligned to a minimum of 16 bytes (preferrably to cache line).
- *
- * The coefs should be attenuated (to compensate for passband ripple)
- * if storing back into the native format.
- *
- * @param samples are unaligned input samples.  The position is in the "middle" of the
- * sample array with respect to the FIR filter:
- * the negative half of the filter is dot product from samples+1 to samples+halfNumCoefs;
- * the positive half of the filter is dot product from samples to samples-halfNumCoefs+1.
- *
- * @param volumeLR is a pointer to an array of two 32 bit volume values, one per stereo channel,
- * expressed as a S32 integer or float.  A negative value inverts the channel 180 degrees.
- * The pointer volumeLR should be aligned to a minimum of 8 bytes.
- * A typical value for volume is 0x1000 to align to a unity gain output of 20.12.
- *
- * In between calls to filterCoefficient, the phase is incremented by phaseIncrement, where
- * phaseIncrement is calculated as inputSampling * phaseWrapLimit / outputSampling.
- *
- * The filter polyphase index is given by indexP = phase >> coefShift. Due to
- * odd length symmetric filter, the polyphase index of the negative half depends on
- * whether interpolation is used.
- *
- * The fractional siting between the polyphase indices is given by the bits below coefShift:
- *
- * lerpP = phase << 32 - coefShift >> 1;  // for 32 bit unsigned phase multiply
- * lerpP = phase << 32 - coefShift >> 17; // for 16 bit unsigned phase multiply
- *
- * For integer types, this is expressed as:
- *
- * lerpP = phase << sizeof(phase)*8 - coefShift
- *              >> (sizeof(phase)-sizeof(*coefs))*8 + 1;
- *
- * For floating point, lerpP is the fractional phase scaled to [0.0, 1.0):
- *
- * lerpP = (phase << 32 - coefShift) / (1 << 32); // floating point equivalent
- */
-
-template<int CHANNELS, bool LOCKED, int STRIDE, typename TC, typename TI, typename TO>
-static inline
-void fir(TO* const out,
-        const uint32_t phase, const uint32_t phaseWrapLimit,
-        const int coefShift, const int halfNumCoefs, const TC* const coefs,
-        const TI* const samples, const TO* const volumeLR)
-{
-    // NOTE: be very careful when modifying the code here. register
-    // pressure is very high and a small change might cause the compiler
-    // to generate far less efficient code.
-    // Always sanity check the result with objdump or test-resample.
-
-    if (LOCKED) {
-        // locked polyphase (no interpolation)
-        // Compute the polyphase filter index on the positive and negative side.
-        uint32_t indexP = phase >> coefShift;
-        uint32_t indexN = (phaseWrapLimit - phase) >> coefShift;
-        const TC* coefsP = coefs + indexP*halfNumCoefs;
-        const TC* coefsN = coefs + indexN*halfNumCoefs;
-        const TI* sP = samples;
-        const TI* sN = samples + CHANNELS;
-
-        // dot product filter.
-        ProcessL<CHANNELS, STRIDE>(out,
-                halfNumCoefs, coefsP, coefsN, sP, sN, volumeLR);
-    } else {
-        // interpolated polyphase
-        // Compute the polyphase filter index on the positive and negative side.
-        uint32_t indexP = phase >> coefShift;
-        uint32_t indexN = (phaseWrapLimit - phase - 1) >> coefShift; // one's complement.
-        const TC* coefsP = coefs + indexP*halfNumCoefs;
-        const TC* coefsN = coefs + indexN*halfNumCoefs;
-        const TC* coefsP1 = coefsP + halfNumCoefs;
-        const TC* coefsN1 = coefsN + halfNumCoefs;
-        const TI* sP = samples;
-        const TI* sN = samples + CHANNELS;
-
-        // Interpolation fraction lerpP derived by shifting all the way up and down
-        // to clear the appropriate bits and align to the appropriate level
-        // for the integer multiply.  The constants should resolve in compile time.
-        //
-        // The interpolated filter coefficient is derived as follows for the pos/neg half:
-        //
-        // interpolated[P] = index[P]*lerpP + index[P+1]*(1-lerpP)
-        // interpolated[N] = index[N+1]*lerpP + index[N]*(1-lerpP)
-
-        // on-the-fly interpolated dot product filter
-        if (is_same<TC, float>::value || is_same<TC, double>::value) {
-            static const TC scale = 1. / (65536. * 65536.); // scale phase bits to [0.0, 1.0)
-            TC lerpP = TC(phase << (sizeof(phase)*8 - coefShift)) * scale;
-
-            Process<CHANNELS, STRIDE>(out,
-                    halfNumCoefs, coefsP, coefsN, coefsP1, coefsN1, sP, sN, lerpP, volumeLR);
-        } else {
-            uint32_t lerpP = phase << (sizeof(phase)*8 - coefShift)
-                    >> ((sizeof(phase)-sizeof(*coefs))*8 + 1);
-
-            Process<CHANNELS, STRIDE>(out,
-                    halfNumCoefs, coefsP, coefsN, coefsP1, coefsN1, sP, sN, lerpP, volumeLR);
-        }
-    }
-}
-
-} // namespace android
-
-#endif /*ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_H*/
diff --git a/services/audioflinger/AudioResamplerFirProcessNeon.h b/services/audioflinger/AudioResamplerFirProcessNeon.h
deleted file mode 100644
index 3de9edd..0000000
--- a/services/audioflinger/AudioResamplerFirProcessNeon.h
+++ /dev/null
@@ -1,1214 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H
-#define ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H
-
-namespace android {
-
-// depends on AudioResamplerFirOps.h, AudioResamplerFirProcess.h
-
-#if USE_NEON
-
-// use intrinsics if inline arm32 assembly is not possible
-#if !USE_INLINE_ASSEMBLY
-#define USE_INTRINSIC
-#endif
-
-// following intrinsics available only on ARM 64 bit ACLE
-#ifndef __aarch64__
-#undef vld1q_f32_x2
-#undef vld1q_s32_x2
-#endif
-
-#define TO_STRING2(x) #x
-#define TO_STRING(x) TO_STRING2(x)
-// uncomment to print GCC version, may be relevant for intrinsic optimizations
-/* #pragma message ("GCC version: " TO_STRING(__GNUC__) \
-        "." TO_STRING(__GNUC_MINOR__) \
-        "." TO_STRING(__GNUC_PATCHLEVEL__)) */
-
-//
-// NEON specializations are enabled for Process() and ProcessL() in AudioResamplerFirProcess.h
-//
-// Two variants are presented here:
-// ARM NEON inline assembly which appears up to 10-15% faster than intrinsics (gcc 4.9) for arm32.
-// ARM NEON intrinsics which can also be used by arm64 and x86/64 with NEON header.
-//
-
-// Macros to save a mono/stereo accumulator sample in q0 (and q4) as stereo out.
-// These are only used for inline assembly.
-#define ASSEMBLY_ACCUMULATE_MONO \
-        "vld1.s32       {d2}, [%[vLR]:64]        \n"/* (1) load volumes */\
-        "vld1.s32       {d3}, %[out]             \n"/* (2) unaligned load the output */\
-        "vpadd.s32      d0, d0, d1               \n"/* (1) add all 4 partial sums */\
-        "vpadd.s32      d0, d0, d0               \n"/* (1+4d) and replicate L/R */\
-        "vqrdmulh.s32   d0, d0, d2               \n"/* (2+3d) apply volume */\
-        "vqadd.s32      d3, d3, d0               \n"/* (1+4d) accumulate result (saturating) */\
-        "vst1.s32       {d3}, %[out]             \n"/* (2+2d) store result */
-
-#define ASSEMBLY_ACCUMULATE_STEREO \
-        "vld1.s32       {d2}, [%[vLR]:64]        \n"/* (1) load volumes*/\
-        "vld1.s32       {d3}, %[out]             \n"/* (2) unaligned load the output*/\
-        "vpadd.s32      d0, d0, d1               \n"/* (1) add all 4 partial sums from q0*/\
-        "vpadd.s32      d8, d8, d9               \n"/* (1) add all 4 partial sums from q4*/\
-        "vpadd.s32      d0, d0, d8               \n"/* (1+4d) combine into L/R*/\
-        "vqrdmulh.s32   d0, d0, d2               \n"/* (2+3d) apply volume*/\
-        "vqadd.s32      d3, d3, d0               \n"/* (1+4d) accumulate result (saturating)*/\
-        "vst1.s32       {d3}, %[out]             \n"/* (2+2d)store result*/
-
-template <int CHANNELS, int STRIDE, bool FIXED>
-static inline void ProcessNeonIntrinsic(int32_t* out,
-        int count,
-        const int16_t* coefsP,
-        const int16_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* volumeLR,
-        uint32_t lerpP,
-        const int16_t* coefsP1,
-        const int16_t* coefsN1)
-{
-    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
-    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(CHANNELS == 1 || CHANNELS == 2);
-
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    coefsP = (const int16_t*)__builtin_assume_aligned(coefsP, 16);
-    coefsN = (const int16_t*)__builtin_assume_aligned(coefsN, 16);
-
-    int16x4_t interp;
-    if (!FIXED) {
-        interp = vdup_n_s16(lerpP);
-        //interp = (int16x4_t)vset_lane_s32 ((int32x2_t)lerpP, interp, 0);
-        coefsP1 = (const int16_t*)__builtin_assume_aligned(coefsP1, 16);
-        coefsN1 = (const int16_t*)__builtin_assume_aligned(coefsN1, 16);
-    }
-    int32x4_t accum, accum2;
-    // warning uninitialized if we use veorq_s32
-    // (alternative to below) accum = veorq_s32(accum, accum);
-    accum = vdupq_n_s32(0);
-    if (CHANNELS == 2) {
-        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
-        accum2 = vdupq_n_s32(0);
-    }
-    do {
-        int16x8_t posCoef = vld1q_s16(coefsP);
-        coefsP += 8;
-        int16x8_t negCoef = vld1q_s16(coefsN);
-        coefsN += 8;
-        if (!FIXED) { // interpolate
-            int16x8_t posCoef1 = vld1q_s16(coefsP1);
-            coefsP1 += 8;
-            int16x8_t negCoef1 = vld1q_s16(coefsN1);
-            coefsN1 += 8;
-
-            posCoef1 = vsubq_s16(posCoef1, posCoef);
-            negCoef = vsubq_s16(negCoef, negCoef1);
-
-            posCoef1 = vqrdmulhq_lane_s16(posCoef1, interp, 0);
-            negCoef = vqrdmulhq_lane_s16(negCoef, interp, 0);
-
-            posCoef = vaddq_s16(posCoef, posCoef1);
-            negCoef = vaddq_s16(negCoef, negCoef1);
-        }
-        switch (CHANNELS) {
-        case 1: {
-            int16x8_t posSamp = vld1q_s16(sP);
-            int16x8_t negSamp = vld1q_s16(sN);
-            sN += 8;
-            posSamp = vrev64q_s16(posSamp);
-
-            // dot product
-            accum = vmlal_s16(accum, vget_low_s16(posSamp), vget_high_s16(posCoef)); // reversed
-            accum = vmlal_s16(accum, vget_high_s16(posSamp), vget_low_s16(posCoef)); // reversed
-            accum = vmlal_s16(accum, vget_low_s16(negSamp), vget_low_s16(negCoef));
-            accum = vmlal_s16(accum, vget_high_s16(negSamp), vget_high_s16(negCoef));
-            sP -= 8;
-        } break;
-        case 2: {
-            int16x8x2_t posSamp = vld2q_s16(sP);
-            int16x8x2_t negSamp = vld2q_s16(sN);
-            sN += 16;
-            posSamp.val[0] = vrev64q_s16(posSamp.val[0]);
-            posSamp.val[1] = vrev64q_s16(posSamp.val[1]);
-
-            // dot product
-            accum = vmlal_s16(accum, vget_low_s16(posSamp.val[0]), vget_high_s16(posCoef)); // r
-            accum = vmlal_s16(accum, vget_high_s16(posSamp.val[0]), vget_low_s16(posCoef)); // r
-            accum2 = vmlal_s16(accum2, vget_low_s16(posSamp.val[1]), vget_high_s16(posCoef)); // r
-            accum2 = vmlal_s16(accum2, vget_high_s16(posSamp.val[1]), vget_low_s16(posCoef)); // r
-            accum = vmlal_s16(accum, vget_low_s16(negSamp.val[0]), vget_low_s16(negCoef));
-            accum = vmlal_s16(accum, vget_high_s16(negSamp.val[0]), vget_high_s16(negCoef));
-            accum2 = vmlal_s16(accum2, vget_low_s16(negSamp.val[1]), vget_low_s16(negCoef));
-            accum2 = vmlal_s16(accum2, vget_high_s16(negSamp.val[1]), vget_high_s16(negCoef));
-            sP -= 16;
-        }
-        } break;
-    } while (count -= 8);
-
-    // multiply by volume and save
-    volumeLR = (const int32_t*)__builtin_assume_aligned(volumeLR, 8);
-    int32x2_t vLR = vld1_s32(volumeLR);
-    int32x2_t outSamp = vld1_s32(out);
-    // combine and funnel down accumulator
-    int32x2_t outAccum = vpadd_s32(vget_low_s32(accum), vget_high_s32(accum));
-    if (CHANNELS == 1) {
-        // duplicate accum to both L and R
-        outAccum = vpadd_s32(outAccum, outAccum);
-    } else if (CHANNELS == 2) {
-        // accum2 contains R, fold in
-        int32x2_t outAccum2 = vpadd_s32(vget_low_s32(accum2), vget_high_s32(accum2));
-        outAccum = vpadd_s32(outAccum, outAccum2);
-    }
-    outAccum = vqrdmulh_s32(outAccum, vLR);
-    outSamp = vqadd_s32(outSamp, outAccum);
-    vst1_s32(out, outSamp);
-}
-
-template <int CHANNELS, int STRIDE, bool FIXED>
-static inline void ProcessNeonIntrinsic(int32_t* out,
-        int count,
-        const int32_t* coefsP,
-        const int32_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* volumeLR,
-        uint32_t lerpP,
-        const int32_t* coefsP1,
-        const int32_t* coefsN1)
-{
-    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
-    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(CHANNELS == 1 || CHANNELS == 2);
-
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    coefsP = (const int32_t*)__builtin_assume_aligned(coefsP, 16);
-    coefsN = (const int32_t*)__builtin_assume_aligned(coefsN, 16);
-
-    int32x2_t interp;
-    if (!FIXED) {
-        interp = vdup_n_s32(lerpP);
-        coefsP1 = (const int32_t*)__builtin_assume_aligned(coefsP1, 16);
-        coefsN1 = (const int32_t*)__builtin_assume_aligned(coefsN1, 16);
-    }
-    int32x4_t accum, accum2;
-    // warning uninitialized if we use veorq_s32
-    // (alternative to below) accum = veorq_s32(accum, accum);
-    accum = vdupq_n_s32(0);
-    if (CHANNELS == 2) {
-        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
-        accum2 = vdupq_n_s32(0);
-    }
-    do {
-#ifdef vld1q_s32_x2
-        int32x4x2_t posCoef = vld1q_s32_x2(coefsP);
-        coefsP += 8;
-        int32x4x2_t negCoef = vld1q_s32_x2(coefsN);
-        coefsN += 8;
-#else
-        int32x4x2_t posCoef;
-        posCoef.val[0] = vld1q_s32(coefsP);
-        coefsP += 4;
-        posCoef.val[1] = vld1q_s32(coefsP);
-        coefsP += 4;
-        int32x4x2_t negCoef;
-        negCoef.val[0] = vld1q_s32(coefsN);
-        coefsN += 4;
-        negCoef.val[1] = vld1q_s32(coefsN);
-        coefsN += 4;
-#endif
-        if (!FIXED) { // interpolate
-#ifdef vld1q_s32_x2
-            int32x4x2_t posCoef1 = vld1q_s32_x2(coefsP1);
-            coefsP1 += 8;
-            int32x4x2_t negCoef1 = vld1q_s32_x2(coefsN1);
-            coefsN1 += 8;
-#else
-            int32x4x2_t posCoef1;
-            posCoef1.val[0] = vld1q_s32(coefsP1);
-            coefsP1 += 4;
-            posCoef1.val[1] = vld1q_s32(coefsP1);
-            coefsP1 += 4;
-            int32x4x2_t negCoef1;
-            negCoef1.val[0] = vld1q_s32(coefsN1);
-            coefsN1 += 4;
-            negCoef1.val[1] = vld1q_s32(coefsN1);
-            coefsN1 += 4;
-#endif
-
-            posCoef1.val[0] = vsubq_s32(posCoef1.val[0], posCoef.val[0]);
-            posCoef1.val[1] = vsubq_s32(posCoef1.val[1], posCoef.val[1]);
-            negCoef.val[0] = vsubq_s32(negCoef.val[0], negCoef1.val[0]);
-            negCoef.val[1] = vsubq_s32(negCoef.val[1], negCoef1.val[1]);
-
-            posCoef1.val[0] = vqrdmulhq_lane_s32(posCoef1.val[0], interp, 0);
-            posCoef1.val[1] = vqrdmulhq_lane_s32(posCoef1.val[1], interp, 0);
-            negCoef.val[0] = vqrdmulhq_lane_s32(negCoef.val[0], interp, 0);
-            negCoef.val[1] = vqrdmulhq_lane_s32(negCoef.val[1], interp, 0);
-
-            posCoef.val[0] = vaddq_s32(posCoef.val[0], posCoef1.val[0]);
-            posCoef.val[1] = vaddq_s32(posCoef.val[1], posCoef1.val[1]);
-            negCoef.val[0] = vaddq_s32(negCoef.val[0], negCoef1.val[0]);
-            negCoef.val[1] = vaddq_s32(negCoef.val[1], negCoef1.val[1]);
-        }
-        switch (CHANNELS) {
-        case 1: {
-            int16x8_t posSamp = vld1q_s16(sP);
-            int16x8_t negSamp = vld1q_s16(sN);
-            sN += 8;
-            posSamp = vrev64q_s16(posSamp);
-
-            int32x4_t posSamp0 = vshll_n_s16(vget_low_s16(posSamp), 15);
-            int32x4_t posSamp1 = vshll_n_s16(vget_high_s16(posSamp), 15);
-            int32x4_t negSamp0 = vshll_n_s16(vget_low_s16(negSamp), 15);
-            int32x4_t negSamp1 = vshll_n_s16(vget_high_s16(negSamp), 15);
-
-            // dot product
-            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
-            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
-            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
-            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
-
-            accum = vaddq_s32(accum, posSamp0);
-            negSamp0 = vaddq_s32(negSamp0, negSamp1);
-            accum = vaddq_s32(accum, posSamp1);
-            accum = vaddq_s32(accum, negSamp0);
-
-            sP -= 8;
-        } break;
-        case 2: {
-            int16x8x2_t posSamp = vld2q_s16(sP);
-            int16x8x2_t negSamp = vld2q_s16(sN);
-            sN += 16;
-            posSamp.val[0] = vrev64q_s16(posSamp.val[0]);
-            posSamp.val[1] = vrev64q_s16(posSamp.val[1]);
-
-            // left
-            int32x4_t posSamp0 = vshll_n_s16(vget_low_s16(posSamp.val[0]), 15);
-            int32x4_t posSamp1 = vshll_n_s16(vget_high_s16(posSamp.val[0]), 15);
-            int32x4_t negSamp0 = vshll_n_s16(vget_low_s16(negSamp.val[0]), 15);
-            int32x4_t negSamp1 = vshll_n_s16(vget_high_s16(negSamp.val[0]), 15);
-
-            // dot product
-            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
-            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
-            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
-            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
-
-            accum = vaddq_s32(accum, posSamp0);
-            negSamp0 = vaddq_s32(negSamp0, negSamp1);
-            accum = vaddq_s32(accum, posSamp1);
-            accum = vaddq_s32(accum, negSamp0);
-
-            // right
-            posSamp0 = vshll_n_s16(vget_low_s16(posSamp.val[1]), 15);
-            posSamp1 = vshll_n_s16(vget_high_s16(posSamp.val[1]), 15);
-            negSamp0 = vshll_n_s16(vget_low_s16(negSamp.val[1]), 15);
-            negSamp1 = vshll_n_s16(vget_high_s16(negSamp.val[1]), 15);
-
-            // dot product
-            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
-            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
-            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
-            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
-
-            accum2 = vaddq_s32(accum2, posSamp0);
-            negSamp0 = vaddq_s32(negSamp0, negSamp1);
-            accum2 = vaddq_s32(accum2, posSamp1);
-            accum2 = vaddq_s32(accum2, negSamp0);
-
-            sP -= 16;
-        } break;
-        }
-    } while (count -= 8);
-
-    // multiply by volume and save
-    volumeLR = (const int32_t*)__builtin_assume_aligned(volumeLR, 8);
-    int32x2_t vLR = vld1_s32(volumeLR);
-    int32x2_t outSamp = vld1_s32(out);
-    // combine and funnel down accumulator
-    int32x2_t outAccum = vpadd_s32(vget_low_s32(accum), vget_high_s32(accum));
-    if (CHANNELS == 1) {
-        // duplicate accum to both L and R
-        outAccum = vpadd_s32(outAccum, outAccum);
-    } else if (CHANNELS == 2) {
-        // accum2 contains R, fold in
-        int32x2_t outAccum2 = vpadd_s32(vget_low_s32(accum2), vget_high_s32(accum2));
-        outAccum = vpadd_s32(outAccum, outAccum2);
-    }
-    outAccum = vqrdmulh_s32(outAccum, vLR);
-    outSamp = vqadd_s32(outSamp, outAccum);
-    vst1_s32(out, outSamp);
-}
-
-template <int CHANNELS, int STRIDE, bool FIXED>
-static inline void ProcessNeonIntrinsic(float* out,
-        int count,
-        const float* coefsP,
-        const float* coefsN,
-        const float* sP,
-        const float* sN,
-        const float* volumeLR,
-        float lerpP,
-        const float* coefsP1,
-        const float* coefsN1)
-{
-    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
-    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(CHANNELS == 1 || CHANNELS == 2);
-
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    coefsP = (const float*)__builtin_assume_aligned(coefsP, 16);
-    coefsN = (const float*)__builtin_assume_aligned(coefsN, 16);
-
-    float32x2_t interp;
-    if (!FIXED) {
-        interp = vdup_n_f32(lerpP);
-        coefsP1 = (const float*)__builtin_assume_aligned(coefsP1, 16);
-        coefsN1 = (const float*)__builtin_assume_aligned(coefsN1, 16);
-    }
-    float32x4_t accum, accum2;
-    // warning uninitialized if we use veorq_s32
-    // (alternative to below) accum = veorq_s32(accum, accum);
-    accum = vdupq_n_f32(0);
-    if (CHANNELS == 2) {
-        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
-        accum2 = vdupq_n_f32(0);
-    }
-    do {
-#ifdef vld1q_f32_x2
-        float32x4x2_t posCoef = vld1q_f32_x2(coefsP);
-        coefsP += 8;
-        float32x4x2_t negCoef = vld1q_f32_x2(coefsN);
-        coefsN += 8;
-#else
-        float32x4x2_t posCoef;
-        posCoef.val[0] = vld1q_f32(coefsP);
-        coefsP += 4;
-        posCoef.val[1] = vld1q_f32(coefsP);
-        coefsP += 4;
-        float32x4x2_t negCoef;
-        negCoef.val[0] = vld1q_f32(coefsN);
-        coefsN += 4;
-        negCoef.val[1] = vld1q_f32(coefsN);
-        coefsN += 4;
-#endif
-        if (!FIXED) { // interpolate
-#ifdef vld1q_f32_x2
-            float32x4x2_t posCoef1 = vld1q_f32_x2(coefsP1);
-            coefsP1 += 8;
-            float32x4x2_t negCoef1 = vld1q_f32_x2(coefsN1);
-            coefsN1 += 8;
-#else
-            float32x4x2_t posCoef1;
-            posCoef1.val[0] = vld1q_f32(coefsP1);
-            coefsP1 += 4;
-            posCoef1.val[1] = vld1q_f32(coefsP1);
-            coefsP1 += 4;
-            float32x4x2_t negCoef1;
-            negCoef1.val[0] = vld1q_f32(coefsN1);
-            coefsN1 += 4;
-            negCoef1.val[1] = vld1q_f32(coefsN1);
-            coefsN1 += 4;
-#endif
-            posCoef1.val[0] = vsubq_f32(posCoef1.val[0], posCoef.val[0]);
-            posCoef1.val[1] = vsubq_f32(posCoef1.val[1], posCoef.val[1]);
-            negCoef.val[0] = vsubq_f32(negCoef.val[0], negCoef1.val[0]);
-            negCoef.val[1] = vsubq_f32(negCoef.val[1], negCoef1.val[1]);
-
-            posCoef.val[0] = vmlaq_lane_f32(posCoef.val[0], posCoef1.val[0], interp, 0);
-            posCoef.val[1] = vmlaq_lane_f32(posCoef.val[1], posCoef1.val[1], interp, 0);
-            negCoef.val[0] = vmlaq_lane_f32(negCoef1.val[0], negCoef.val[0], interp, 0); // rev
-            negCoef.val[1] = vmlaq_lane_f32(negCoef1.val[1], negCoef.val[1], interp, 0); // rev
-        }
-        switch (CHANNELS) {
-        case 1: {
-#ifdef vld1q_f32_x2
-            float32x4x2_t posSamp = vld1q_f32_x2(sP);
-            float32x4x2_t negSamp = vld1q_f32_x2(sN);
-            sN += 8;
-            sP -= 8;
-#else
-            float32x4x2_t posSamp;
-            posSamp.val[0] = vld1q_f32(sP);
-            sP += 4;
-            posSamp.val[1] = vld1q_f32(sP);
-            sP -= 12;
-            float32x4x2_t negSamp;
-            negSamp.val[0] = vld1q_f32(sN);
-            sN += 4;
-            negSamp.val[1] = vld1q_f32(sN);
-            sN += 4;
-#endif
-            // effectively we want a vrev128q_f32()
-            posSamp.val[0] = vrev64q_f32(posSamp.val[0]);
-            posSamp.val[1] = vrev64q_f32(posSamp.val[1]);
-            posSamp.val[0] = vcombine_f32(
-                    vget_high_f32(posSamp.val[0]), vget_low_f32(posSamp.val[0]));
-            posSamp.val[1] = vcombine_f32(
-                    vget_high_f32(posSamp.val[1]), vget_low_f32(posSamp.val[1]));
-
-            accum = vmlaq_f32(accum, posSamp.val[0], posCoef.val[1]);
-            accum = vmlaq_f32(accum, posSamp.val[1], posCoef.val[0]);
-            accum = vmlaq_f32(accum, negSamp.val[0], negCoef.val[0]);
-            accum = vmlaq_f32(accum, negSamp.val[1], negCoef.val[1]);
-        } break;
-        case 2: {
-            float32x4x2_t posSamp0 = vld2q_f32(sP);
-            sP += 8;
-            float32x4x2_t negSamp0 = vld2q_f32(sN);
-            sN += 8;
-            posSamp0.val[0] = vrev64q_f32(posSamp0.val[0]);
-            posSamp0.val[1] = vrev64q_f32(posSamp0.val[1]);
-            posSamp0.val[0] = vcombine_f32(
-                    vget_high_f32(posSamp0.val[0]), vget_low_f32(posSamp0.val[0]));
-            posSamp0.val[1] = vcombine_f32(
-                    vget_high_f32(posSamp0.val[1]), vget_low_f32(posSamp0.val[1]));
-
-            float32x4x2_t posSamp1 = vld2q_f32(sP);
-            sP -= 24;
-            float32x4x2_t negSamp1 = vld2q_f32(sN);
-            sN += 8;
-            posSamp1.val[0] = vrev64q_f32(posSamp1.val[0]);
-            posSamp1.val[1] = vrev64q_f32(posSamp1.val[1]);
-            posSamp1.val[0] = vcombine_f32(
-                    vget_high_f32(posSamp1.val[0]), vget_low_f32(posSamp1.val[0]));
-            posSamp1.val[1] = vcombine_f32(
-                    vget_high_f32(posSamp1.val[1]), vget_low_f32(posSamp1.val[1]));
-
-            // Note: speed is affected by accumulation order.
-            // Also, speed appears slower using vmul/vadd instead of vmla for
-            // stereo case, comparable for mono.
-
-            accum = vmlaq_f32(accum, negSamp0.val[0], negCoef.val[0]);
-            accum = vmlaq_f32(accum, negSamp1.val[0], negCoef.val[1]);
-            accum2 = vmlaq_f32(accum2, negSamp0.val[1], negCoef.val[0]);
-            accum2 = vmlaq_f32(accum2, negSamp1.val[1], negCoef.val[1]);
-
-            accum = vmlaq_f32(accum, posSamp0.val[0], posCoef.val[1]); // reversed
-            accum = vmlaq_f32(accum, posSamp1.val[0], posCoef.val[0]); // reversed
-            accum2 = vmlaq_f32(accum2, posSamp0.val[1], posCoef.val[1]); // reversed
-            accum2 = vmlaq_f32(accum2, posSamp1.val[1], posCoef.val[0]); // reversed
-        } break;
-        }
-    } while (count -= 8);
-
-    // multiply by volume and save
-    volumeLR = (const float*)__builtin_assume_aligned(volumeLR, 8);
-    float32x2_t vLR = vld1_f32(volumeLR);
-    float32x2_t outSamp = vld1_f32(out);
-    // combine and funnel down accumulator
-    float32x2_t outAccum = vpadd_f32(vget_low_f32(accum), vget_high_f32(accum));
-    if (CHANNELS == 1) {
-        // duplicate accum to both L and R
-        outAccum = vpadd_f32(outAccum, outAccum);
-    } else if (CHANNELS == 2) {
-        // accum2 contains R, fold in
-        float32x2_t outAccum2 = vpadd_f32(vget_low_f32(accum2), vget_high_f32(accum2));
-        outAccum = vpadd_f32(outAccum, outAccum2);
-    }
-    outSamp = vmla_f32(outSamp, outAccum, vLR);
-    vst1_f32(out, outSamp);
-}
-
-template <>
-inline void ProcessL<1, 16>(int32_t* const out,
-        int count,
-        const int16_t* coefsP,
-        const int16_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-#else
-    const int CHANNELS = 1; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "veor           q0, q0, q0               \n"// (0 - combines+) accumulator = 0
-
-        "1:                                      \n"
-
-        "vld1.16        {q2}, [%[sP]]            \n"// (2+0d) load 8 16-bits mono samples
-        "vld1.16        {q3}, [%[sN]]!           \n"// (2) load 8 16-bits mono samples
-        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q10}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs
-
-        "vrev64.16      q2, q2                   \n"// (1) reverse s3, s2, s1, s0, s7, s6, s5, s4
-
-        // reordering the vmal to do d6, d7 before d4, d5 is slower(?)
-        "vmlal.s16      q0, d4, d17              \n"// (1+0d) multiply (reversed)samples by coef
-        "vmlal.s16      q0, d5, d16              \n"// (1) multiply (reversed)samples by coef
-        "vmlal.s16      q0, d6, d20              \n"// (1) multiply neg samples
-        "vmlal.s16      q0, d7, d21              \n"// (1) multiply neg samples
-
-        // moving these ARM instructions before neon above seems to be slower
-        "subs           %[count], %[count], #8   \n"// (1) update loop counter
-        "sub            %[sP], %[sP], #16        \n"// (0) move pointer to next set of samples
-
-        // sP used after branch (warning)
-        "bne            1b                       \n"// loop
-
-         ASSEMBLY_ACCUMULATE_MONO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q8", "q10"
-    );
-#endif
-}
-
-template <>
-inline void ProcessL<2, 16>(int32_t* const out,
-        int count,
-        const int16_t* coefsP,
-        const int16_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-#else
-    const int CHANNELS = 2; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "veor           q0, q0, q0               \n"// (1) acc_L = 0
-        "veor           q4, q4, q4               \n"// (0 combines+) acc_R = 0
-
-        "1:                                      \n"
-
-        "vld2.16        {q2, q3}, [%[sP]]        \n"// (3+0d) load 8 16-bits stereo frames
-        "vld2.16        {q5, q6}, [%[sN]]!       \n"// (3) load 8 16-bits stereo frames
-        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q10}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs
-
-        "vrev64.16      q2, q2                   \n"// (1) reverse 8 samples of positive left
-        "vrev64.16      q3, q3                   \n"// (0 combines+) reverse positive right
-
-        "vmlal.s16      q0, d4, d17              \n"// (1) multiply (reversed) samples left
-        "vmlal.s16      q0, d5, d16              \n"// (1) multiply (reversed) samples left
-        "vmlal.s16      q4, d6, d17              \n"// (1) multiply (reversed) samples right
-        "vmlal.s16      q4, d7, d16              \n"// (1) multiply (reversed) samples right
-        "vmlal.s16      q0, d10, d20             \n"// (1) multiply samples left
-        "vmlal.s16      q0, d11, d21             \n"// (1) multiply samples left
-        "vmlal.s16      q4, d12, d20             \n"// (1) multiply samples right
-        "vmlal.s16      q4, d13, d21             \n"// (1) multiply samples right
-
-        // moving these ARM before neon seems to be slower
-        "subs           %[count], %[count], #8   \n"// (1) update loop counter
-        "sub            %[sP], %[sP], #32        \n"// (0) move pointer to next set of samples
-
-        // sP used after branch (warning)
-        "bne            1b                       \n"// loop
-
-        ASSEMBLY_ACCUMULATE_STEREO
-
-        : [out] "=Uv" (out[0]),
-          [count] "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [sP] "+r" (sP),
-          [sN] "+r" (sN)
-        : [vLR] "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q4", "q5", "q6",
-          "q8", "q10"
-     );
-#endif
-}
-
-template <>
-inline void Process<1, 16>(int32_t* const out,
-        int count,
-        const int16_t* coefsP,
-        const int16_t* coefsN,
-        const int16_t* coefsP1,
-        const int16_t* coefsN1,
-        const int16_t* sP,
-        const int16_t* sN,
-        uint32_t lerpP,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-#else
-
-    const int CHANNELS = 1; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "vmov.32        d2[0], %[lerpP]          \n"// load the positive phase S32 Q15
-        "veor           q0, q0, q0               \n"// (0 - combines+) accumulator = 0
-
-        "1:                                      \n"
-
-        "vld1.16        {q2}, [%[sP]]            \n"// (2+0d) load 8 16-bits mono samples
-        "vld1.16        {q3}, [%[sN]]!           \n"// (2) load 8 16-bits mono samples
-        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q9}, [%[coefsP1]:128]!  \n"// (1) load 8 16-bits coefs for interpolation
-        "vld1.16        {q10}, [%[coefsN1]:128]! \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q11}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs for interpolation
-
-        "vsub.s16       q9, q9, q8               \n"// (1) interpolate (step1) 1st set of coefs
-        "vsub.s16       q11, q11, q10            \n"// (1) interpolate (step1) 2nd set of coets
-
-        "vqrdmulh.s16   q9, q9, d2[0]            \n"// (2) interpolate (step2) 1st set of coefs
-        "vqrdmulh.s16   q11, q11, d2[0]          \n"// (2) interpolate (step2) 2nd set of coefs
-
-        "vrev64.16      q2, q2                   \n"// (1) reverse s3, s2, s1, s0, s7, s6, s5, s4
-
-        "vadd.s16       q8, q8, q9               \n"// (1+2d) interpolate (step3) 1st set
-        "vadd.s16       q10, q10, q11            \n"// (1+1d) interpolate (step3) 2nd set
-
-        // reordering the vmal to do d6, d7 before d4, d5 is slower(?)
-        "vmlal.s16      q0, d4, d17              \n"// (1+0d) multiply reversed samples by coef
-        "vmlal.s16      q0, d5, d16              \n"// (1) multiply reversed samples by coef
-        "vmlal.s16      q0, d6, d20              \n"// (1) multiply neg samples
-        "vmlal.s16      q0, d7, d21              \n"// (1) multiply neg samples
-
-        // moving these ARM instructions before neon above seems to be slower
-        "subs           %[count], %[count], #8   \n"// (1) update loop counter
-        "sub            %[sP], %[sP], #16        \n"// (0) move pointer to next set of samples
-
-        // sP used after branch (warning)
-        "bne            1b                       \n"// loop
-
-        ASSEMBLY_ACCUMULATE_MONO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [coefsP1] "+r" (coefsP1),
-          [coefsN1] "+r" (coefsN1),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [lerpP]   "r" (lerpP),
-          [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q8", "q9", "q10", "q11"
-    );
-#endif
-}
-
-template <>
-inline void Process<2, 16>(int32_t* const out,
-        int count,
-        const int16_t* coefsP,
-        const int16_t* coefsN,
-        const int16_t* coefsP1,
-        const int16_t* coefsN1,
-        const int16_t* sP,
-        const int16_t* sN,
-        uint32_t lerpP,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-#else
-    const int CHANNELS = 2; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "vmov.32        d2[0], %[lerpP]          \n"// load the positive phase
-        "veor           q0, q0, q0               \n"// (1) acc_L = 0
-        "veor           q4, q4, q4               \n"// (0 combines+) acc_R = 0
-
-        "1:                                      \n"
-
-        "vld2.16        {q2, q3}, [%[sP]]        \n"// (3+0d) load 8 16-bits stereo frames
-        "vld2.16        {q5, q6}, [%[sN]]!       \n"// (3) load 8 16-bits stereo frames
-        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q9}, [%[coefsP1]:128]!  \n"// (1) load 8 16-bits coefs for interpolation
-        "vld1.16        {q10}, [%[coefsN1]:128]! \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q11}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs for interpolation
-
-        "vsub.s16       q9, q9, q8               \n"// (1) interpolate (step1) 1st set of coefs
-        "vsub.s16       q11, q11, q10            \n"// (1) interpolate (step1) 2nd set of coets
-
-        "vqrdmulh.s16   q9, q9, d2[0]            \n"// (2) interpolate (step2) 1st set of coefs
-        "vqrdmulh.s16   q11, q11, d2[0]          \n"// (2) interpolate (step2) 2nd set of coefs
-
-        "vrev64.16      q2, q2                   \n"// (1) reverse 8 samples of positive left
-        "vrev64.16      q3, q3                   \n"// (1) reverse 8 samples of positive right
-
-        "vadd.s16       q8, q8, q9               \n"// (1+1d) interpolate (step3) 1st set
-        "vadd.s16       q10, q10, q11            \n"// (1+1d) interpolate (step3) 2nd set
-
-        "vmlal.s16      q0, d4, d17              \n"// (1) multiply reversed samples left
-        "vmlal.s16      q0, d5, d16              \n"// (1) multiply reversed samples left
-        "vmlal.s16      q4, d6, d17              \n"// (1) multiply reversed samples right
-        "vmlal.s16      q4, d7, d16              \n"// (1) multiply reversed samples right
-        "vmlal.s16      q0, d10, d20             \n"// (1) multiply samples left
-        "vmlal.s16      q0, d11, d21             \n"// (1) multiply samples left
-        "vmlal.s16      q4, d12, d20             \n"// (1) multiply samples right
-        "vmlal.s16      q4, d13, d21             \n"// (1) multiply samples right
-
-        // moving these ARM before neon seems to be slower
-        "subs           %[count], %[count], #8   \n"// (1) update loop counter
-        "sub            %[sP], %[sP], #32        \n"// (0) move pointer to next set of samples
-
-        // sP used after branch (warning)
-        "bne            1b                       \n"// loop
-
-        ASSEMBLY_ACCUMULATE_STEREO
-
-        : [out] "=Uv" (out[0]),
-          [count] "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [coefsP1] "+r" (coefsP1),
-          [coefsN1] "+r" (coefsN1),
-          [sP] "+r" (sP),
-          [sN] "+r" (sN)
-        : [lerpP]   "r" (lerpP),
-          [vLR] "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q4", "q5", "q6",
-          "q8", "q9", "q10", "q11"
-    );
-#endif
-}
-
-template <>
-inline void ProcessL<1, 16>(int32_t* const out,
-        int count,
-        const int32_t* coefsP,
-        const int32_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-#else
-    const int CHANNELS = 1; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "veor           q0, q0, q0                    \n"// result, initialize to 0
-
-        "1:                                           \n"
-
-        "vld1.16        {q2}, [%[sP]]                 \n"// load 8 16-bits mono samples
-        "vld1.16        {q3}, [%[sN]]!                \n"// load 8 16-bits mono samples
-        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
-        "vld1.32        {q10, q11}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
-
-        "vrev64.16      q2, q2                        \n"// reverse 8 samples of the positive side
-
-        "vshll.s16      q12, d4, #15                  \n"// extend samples to 31 bits
-        "vshll.s16      q13, d5, #15                  \n"// extend samples to 31 bits
-
-        "vshll.s16      q14, d6, #15                  \n"// extend samples to 31 bits
-        "vshll.s16      q15, d7, #15                  \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples
-
-        "vadd.s32       q0, q0, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q0, q0, q15                   \n"// accumulate result
-        "vadd.s32       q0, q0, q13                   \n"// accumulate result
-
-        "sub            %[sP], %[sP], #16             \n"// move pointer to next set of samples
-        "subs           %[count], %[count], #8        \n"// update loop counter
-
-        "bne            1b                            \n"// loop
-
-        ASSEMBLY_ACCUMULATE_MONO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q8", "q9", "q10", "q11",
-          "q12", "q13", "q14", "q15"
-    );
-#endif
-}
-
-template <>
-inline void ProcessL<2, 16>(int32_t* const out,
-        int count,
-        const int32_t* coefsP,
-        const int32_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-#else
-    const int CHANNELS = 2; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "veor           q0, q0, q0                    \n"// result, initialize to 0
-        "veor           q4, q4, q4                    \n"// result, initialize to 0
-
-        "1:                                           \n"
-
-        "vld2.16        {q2, q3}, [%[sP]]             \n"// load 8 16-bits stereo frames
-        "vld2.16        {q5, q6}, [%[sN]]!            \n"// load 8 16-bits stereo frames
-        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
-        "vld1.32        {q10, q11}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
-
-        "vrev64.16      q2, q2                        \n"// reverse 8 samples of positive left
-        "vrev64.16      q3, q3                        \n"// reverse 8 samples of positive right
-
-        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
-
-        "vshll.s16      q14,  d10, #15                \n"// extend samples to 31 bits
-        "vshll.s16      q15,  d11, #15                \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by coef
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by coef
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by coef
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by coef
-
-        "vadd.s32       q0, q0, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q0, q0, q15                   \n"// accumulate result
-        "vadd.s32       q0, q0, q13                   \n"// accumulate result
-
-        "vshll.s16      q12,  d6, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q13,  d7, #15                 \n"// extend samples to 31 bits
-
-        "vshll.s16      q14,  d12, #15                \n"// extend samples to 31 bits
-        "vshll.s16      q15,  d13, #15                \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by coef
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by coef
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by coef
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by coef
-
-        "vadd.s32       q4, q4, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q4, q4, q15                   \n"// accumulate result
-        "vadd.s32       q4, q4, q13                   \n"// accumulate result
-
-        "subs           %[count], %[count], #8        \n"// update loop counter
-        "sub            %[sP], %[sP], #32             \n"// move pointer to next set of samples
-
-        "bne            1b                            \n"// loop
-
-        ASSEMBLY_ACCUMULATE_STEREO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q4", "q5", "q6",
-          "q8", "q9", "q10", "q11",
-          "q12", "q13", "q14", "q15"
-    );
-#endif
-}
-
-template <>
-inline void Process<1, 16>(int32_t* const out,
-        int count,
-        const int32_t* coefsP,
-        const int32_t* coefsN,
-        const int32_t* coefsP1,
-        const int32_t* coefsN1,
-        const int16_t* sP,
-        const int16_t* sN,
-        uint32_t lerpP,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-#else
-    const int CHANNELS = 1; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "vmov.32        d2[0], %[lerpP]               \n"// load the positive phase
-        "veor           q0, q0, q0                    \n"// result, initialize to 0
-
-        "1:                                           \n"
-
-        "vld1.16        {q2}, [%[sP]]                 \n"// load 8 16-bits mono samples
-        "vld1.16        {q3}, [%[sN]]!                \n"// load 8 16-bits mono samples
-        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
-        "vld1.32        {q12, q13}, [%[coefsP1]:128]! \n"// load 8 32-bits coefs
-        "vld1.32        {q10, q11}, [%[coefsN1]:128]! \n"// load 8 32-bits coefs
-        "vld1.32        {q14, q15}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
-
-        "vsub.s32       q12, q12, q8                  \n"// interpolate (step1)
-        "vsub.s32       q13, q13, q9                  \n"// interpolate (step1)
-        "vsub.s32       q14, q14, q10                 \n"// interpolate (step1)
-        "vsub.s32       q15, q15, q11                 \n"// interpolate (step1)
-
-        "vqrdmulh.s32   q12, q12, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q13, q13, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q14, q14, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q15, q15, d2[0]               \n"// interpolate (step2)
-
-        "vadd.s32       q8, q8, q12                   \n"// interpolate (step3)
-        "vadd.s32       q9, q9, q13                   \n"// interpolate (step3)
-        "vadd.s32       q10, q10, q14                 \n"// interpolate (step3)
-        "vadd.s32       q11, q11, q15                 \n"// interpolate (step3)
-
-        "vrev64.16      q2, q2                        \n"// reverse 8 samples of the positive side
-
-        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
-
-        "vshll.s16      q14,  d6, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q15,  d7, #15                 \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
-
-        "vadd.s32       q0, q0, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q0, q0, q15                   \n"// accumulate result
-        "vadd.s32       q0, q0, q13                   \n"// accumulate result
-
-        "sub            %[sP], %[sP], #16             \n"// move pointer to next set of samples
-        "subs           %[count], %[count], #8        \n"// update loop counter
-
-        "bne            1b                            \n"// loop
-
-        ASSEMBLY_ACCUMULATE_MONO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [coefsP1] "+r" (coefsP1),
-          [coefsN1] "+r" (coefsN1),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [lerpP]   "r" (lerpP),
-          [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q8", "q9", "q10", "q11",
-          "q12", "q13", "q14", "q15"
-    );
-#endif
-}
-
-template <>
-inline void Process<2, 16>(int32_t* const out,
-        int count,
-        const int32_t* coefsP,
-        const int32_t* coefsN,
-        const int32_t* coefsP1,
-        const int32_t* coefsN1,
-        const int16_t* sP,
-        const int16_t* sN,
-        uint32_t lerpP,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-#else
-    const int CHANNELS = 2; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "vmov.32        d2[0], %[lerpP]               \n"// load the positive phase
-        "veor           q0, q0, q0                    \n"// result, initialize to 0
-        "veor           q4, q4, q4                    \n"// result, initialize to 0
-
-        "1:                                           \n"
-
-        "vld2.16        {q2, q3}, [%[sP]]             \n"// load 8 16-bits stereo frames
-        "vld2.16        {q5, q6}, [%[sN]]!            \n"// load 8 16-bits stereo frames
-        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
-        "vld1.32        {q12, q13}, [%[coefsP1]:128]! \n"// load 8 32-bits coefs
-        "vld1.32        {q10, q11}, [%[coefsN1]:128]! \n"// load 8 32-bits coefs
-        "vld1.32        {q14, q15}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
-
-        "vsub.s32       q12, q12, q8                  \n"// interpolate (step1)
-        "vsub.s32       q13, q13, q9                  \n"// interpolate (step1)
-        "vsub.s32       q14, q14, q10                 \n"// interpolate (step1)
-        "vsub.s32       q15, q15, q11                 \n"// interpolate (step1)
-
-        "vqrdmulh.s32   q12, q12, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q13, q13, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q14, q14, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q15, q15, d2[0]               \n"// interpolate (step2)
-
-        "vadd.s32       q8, q8, q12                   \n"// interpolate (step3)
-        "vadd.s32       q9, q9, q13                   \n"// interpolate (step3)
-        "vadd.s32       q10, q10, q14                 \n"// interpolate (step3)
-        "vadd.s32       q11, q11, q15                 \n"// interpolate (step3)
-
-        "vrev64.16      q2, q2                        \n"// reverse 8 samples of positive left
-        "vrev64.16      q3, q3                        \n"// reverse 8 samples of positive right
-
-        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
-
-        "vshll.s16      q14,  d10, #15                \n"// extend samples to 31 bits
-        "vshll.s16      q15,  d11, #15                \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
-
-        "vadd.s32       q0, q0, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q0, q0, q15                   \n"// accumulate result
-        "vadd.s32       q0, q0, q13                   \n"// accumulate result
-
-        "vshll.s16      q12,  d6, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q13,  d7, #15                 \n"// extend samples to 31 bits
-
-        "vshll.s16      q14,  d12, #15                \n"// extend samples to 31 bits
-        "vshll.s16      q15,  d13, #15                \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
-
-        "vadd.s32       q4, q4, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q4, q4, q15                   \n"// accumulate result
-        "vadd.s32       q4, q4, q13                   \n"// accumulate result
-
-        "subs           %[count], %[count], #8        \n"// update loop counter
-        "sub            %[sP], %[sP], #32             \n"// move pointer to next set of samples
-
-        "bne            1b                            \n"// loop
-
-        ASSEMBLY_ACCUMULATE_STEREO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [coefsP1] "+r" (coefsP1),
-          [coefsN1] "+r" (coefsN1),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [lerpP]   "r" (lerpP),
-          [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q4", "q5", "q6",
-          "q8", "q9", "q10", "q11",
-          "q12", "q13", "q14", "q15"
-    );
-#endif
-}
-
-template<>
-inline void ProcessL<1, 16>(float* const out,
-        int count,
-        const float* coefsP,
-        const float* coefsN,
-        const float* sP,
-        const float* sN,
-        const float* const volumeLR)
-{
-    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-}
-
-template<>
-inline void ProcessL<2, 16>(float* const out,
-        int count,
-        const float* coefsP,
-        const float* coefsN,
-        const float* sP,
-        const float* sN,
-        const float* const volumeLR)
-{
-    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-}
-
-template<>
-inline void Process<1, 16>(float* const out,
-        int count,
-        const float* coefsP,
-        const float* coefsN,
-        const float* coefsP1,
-        const float* coefsN1,
-        const float* sP,
-        const float* sN,
-        float lerpP,
-        const float* const volumeLR)
-{
-    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-}
-
-template<>
-inline void Process<2, 16>(float* const out,
-        int count,
-        const float* coefsP,
-        const float* coefsN,
-        const float* coefsP1,
-        const float* coefsN1,
-        const float* sP,
-        const float* sN,
-        float lerpP,
-        const float* const volumeLR)
-{
-    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-}
-
-#endif //USE_NEON
-
-} // namespace android
-
-#endif /*ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H*/
diff --git a/services/audioflinger/AudioResamplerSinc.h b/services/audioflinger/AudioResamplerSinc.h
deleted file mode 100644
index 0fbeac8..0000000
--- a/services/audioflinger/AudioResamplerSinc.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_RESAMPLER_SINC_H
-#define ANDROID_AUDIO_RESAMPLER_SINC_H
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <cutils/log.h>
-
-#include "AudioResampler.h"
-
-namespace android {
-
-
-typedef const int32_t * (*readCoefficientsFn)(bool upDownSample);
-typedef int32_t (*readResampleFirNumCoeffFn)();
-typedef int32_t (*readResampleFirLerpIntBitsFn)();
-
-// ----------------------------------------------------------------------------
-
-class AudioResamplerSinc : public AudioResampler {
-public:
-    AudioResamplerSinc(int inChannelCount, int32_t sampleRate,
-            src_quality quality = HIGH_QUALITY);
-
-    virtual ~AudioResamplerSinc();
-
-    virtual size_t resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-private:
-    void init();
-
-    virtual void setVolume(float left, float right);
-
-    template<int CHANNELS>
-    size_t resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-
-    template<int CHANNELS>
-    inline void filterCoefficient(
-            int32_t* out, uint32_t phase, const int16_t *samples, uint32_t vRL);
-
-    template<int CHANNELS>
-    inline void interpolate(
-            int32_t& l, int32_t& r,
-            const int32_t* coefs, size_t offset,
-            int32_t lerp, const int16_t* samples);
-
-    template<int CHANNELS>
-    inline void read(int16_t*& impulse, uint32_t& phaseFraction,
-            const int16_t* in, size_t inputIndex);
-
-    int16_t *mState;
-    int16_t *mImpulse;
-    int16_t *mRingFull;
-    int32_t mVolumeSIMD[2];
-
-    const int32_t * mFirCoefs;
-    static const uint32_t mFirCoefsDown[];
-    static const uint32_t mFirCoefsUp[];
-
-    // ----------------------------------------------------------------------------
-    static const int32_t RESAMPLE_FIR_NUM_COEF       = 8;
-    static const int32_t RESAMPLE_FIR_LERP_INT_BITS  = 7;
-
-    struct Constants {
-        int coefsBits;
-        int cShift;
-        uint32_t cMask;
-        int pShift;
-        uint32_t pMask;
-        // number of zero-crossing on each side
-        unsigned int halfNumCoefs;
-    };
-
-    static Constants highQualityConstants;
-    static Constants veryHighQualityConstants;
-    const Constants *mConstants;    // points to appropriate set of coefficient parameters
-
-    static void init_routine();
-};
-
-// ----------------------------------------------------------------------------
-} // namespace android
-
-#endif /*ANDROID_AUDIO_RESAMPLER_SINC_H*/
diff --git a/services/audioflinger/AudioStreamOut.cpp b/services/audioflinger/AudioStreamOut.cpp
index 6026bbb..1d4b3fe 100644
--- a/services/audioflinger/AudioStreamOut.cpp
+++ b/services/audioflinger/AudioStreamOut.cpp
@@ -18,7 +18,9 @@
 #define LOG_TAG "AudioFlinger"
 //#define LOG_NDEBUG 0
 
-#include <hardware/audio.h>
+#include <media/audiohal/DeviceHalInterface.h>
+#include <media/audiohal/StreamHalInterface.h>
+#include <system/audio.h>
 #include <utils/Log.h>
 
 #include "AudioHwDevice.h"
@@ -40,19 +42,23 @@
 {
 }
 
-audio_hw_device_t *AudioStreamOut::hwDev() const
+AudioStreamOut::~AudioStreamOut()
+{
+}
+
+sp<DeviceHalInterface> AudioStreamOut::hwDev() const
 {
     return audioHwDev->hwDevice();
 }
 
 status_t AudioStreamOut::getRenderPosition(uint64_t *frames)
 {
-    if (stream == NULL) {
+    if (stream == 0) {
         return NO_INIT;
     }
 
     uint32_t halPosition = 0;
-    status_t status = stream->get_render_position(stream, &halPosition);
+    status_t status = stream->getRenderPosition(&halPosition);
     if (status != NO_ERROR) {
         return status;
     }
@@ -84,12 +90,12 @@
 
 status_t AudioStreamOut::getPresentationPosition(uint64_t *frames, struct timespec *timestamp)
 {
-    if (stream == NULL) {
+    if (stream == 0) {
         return NO_INIT;
     }
 
     uint64_t halPosition = 0;
-    status_t status = stream->get_presentation_position(stream, &halPosition, timestamp);
+    status_t status = stream->getPresentationPosition(&halPosition, timestamp);
     if (status != NO_ERROR) {
         return status;
     }
@@ -115,24 +121,23 @@
         struct audio_config *config,
         const char *address)
 {
-    audio_stream_out_t *outStream;
+    sp<StreamOutHalInterface> outStream;
 
     audio_output_flags_t customFlags = (config->format == AUDIO_FORMAT_IEC61937)
                 ? (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO)
                 : flags;
 
-    int status = hwDev()->open_output_stream(
-            hwDev(),
+    int status = hwDev()->openOutputStream(
             handle,
             devices,
             customFlags,
             config,
-            &outStream,
-            address);
+            address,
+            &outStream);
     ALOGV("AudioStreamOut::open(), HAL returned "
             " stream %p, sampleRate %d, Format %#x, "
             "channelMask %#x, status %d",
-            outStream,
+            outStream.get(),
             config->sample_rate,
             config->format,
             config->channel_mask,
@@ -144,21 +149,20 @@
         struct audio_config customConfig = *config;
         customConfig.format = AUDIO_FORMAT_PCM_16_BIT;
 
-        status = hwDev()->open_output_stream(
-                hwDev(),
+        status = hwDev()->openOutputStream(
                 handle,
                 devices,
                 customFlags,
                 &customConfig,
-                &outStream,
-                address);
+                address,
+                &outStream);
         ALOGV("AudioStreamOut::open(), treat IEC61937 as PCM, status = %d", status);
     }
 
     if (status == NO_ERROR) {
         stream = outStream;
         mHalFormatHasProportionalFrames = audio_has_proportional_frames(config->format);
-        mHalFrameSize = audio_stream_out_frame_size(stream);
+        status = stream->getFrameSize(&mHalFrameSize);
     }
 
     return status;
@@ -166,47 +170,46 @@
 
 audio_format_t AudioStreamOut::getFormat() const
 {
-    return stream->common.get_format(&stream->common);
+    audio_format_t result;
+    return stream->getFormat(&result) == OK ? result : AUDIO_FORMAT_INVALID;
 }
 
 uint32_t AudioStreamOut::getSampleRate() const
 {
-    return stream->common.get_sample_rate(&stream->common);
+    uint32_t result;
+    return stream->getSampleRate(&result) == OK ? result : 0;
 }
 
 audio_channel_mask_t AudioStreamOut::getChannelMask() const
 {
-    return stream->common.get_channels(&stream->common);
+    audio_channel_mask_t result;
+    return stream->getChannelMask(&result) == OK ? result : AUDIO_CHANNEL_INVALID;
 }
 
 int AudioStreamOut::flush()
 {
-    ALOG_ASSERT(stream != NULL);
     mRenderPosition = 0;
     mFramesWritten = 0;
     mFramesWrittenAtStandby = 0;
-    if (stream->flush != NULL) {
-        return stream->flush(stream);
-    }
-    return NO_ERROR;
+    status_t result = stream->flush();
+    return result != INVALID_OPERATION ? result : NO_ERROR;
 }
 
 int AudioStreamOut::standby()
 {
-    ALOG_ASSERT(stream != NULL);
     mRenderPosition = 0;
     mFramesWrittenAtStandby = mFramesWritten;
-    return stream->common.standby(&stream->common);
+    return stream->standby();
 }
 
 ssize_t AudioStreamOut::write(const void *buffer, size_t numBytes)
 {
-    ALOG_ASSERT(stream != NULL);
-    ssize_t bytesWritten = stream->write(stream, buffer, numBytes);
-    if (bytesWritten > 0 && mHalFrameSize > 0) {
+    size_t bytesWritten;
+    status_t result = stream->write(buffer, numBytes, &bytesWritten);
+    if (result == OK && bytesWritten > 0 && mHalFrameSize > 0) {
         mFramesWritten += bytesWritten / mHalFrameSize;
     }
-    return bytesWritten;
+    return result == OK ? bytesWritten : result;
 }
 
 } // namespace android
diff --git a/services/audioflinger/AudioStreamOut.h b/services/audioflinger/AudioStreamOut.h
index 768f537..b16b1af 100644
--- a/services/audioflinger/AudioStreamOut.h
+++ b/services/audioflinger/AudioStreamOut.h
@@ -23,11 +23,11 @@
 
 #include <system/audio.h>
 
-#include "AudioStreamOut.h"
-
 namespace android {
 
 class AudioHwDevice;
+class DeviceHalInterface;
+class StreamOutHalInterface;
 
 /**
  * Managed access to a HAL output stream.
@@ -38,10 +38,10 @@
 // For emphasis, we could also make all pointers to them be "const *",
 // but that would clutter the code unnecessarily.
     AudioHwDevice * const audioHwDev;
-    audio_stream_out_t *stream;
+    sp<StreamOutHalInterface> stream;
     const audio_output_flags_t flags;
 
-    audio_hw_device_t *hwDev() const;
+    sp<DeviceHalInterface> hwDev() const;
 
     AudioStreamOut(AudioHwDevice *dev, audio_output_flags_t flags);
 
@@ -51,7 +51,7 @@
             struct audio_config *config,
             const char *address);
 
-    virtual ~AudioStreamOut() { }
+    virtual ~AudioStreamOut();
 
     // Get the bottom 32-bits of the 64-bit render position.
     status_t getRenderPosition(uint32_t *frames);
diff --git a/services/audioflinger/AudioWatchdog.h b/services/audioflinger/AudioWatchdog.h
index 4657530..7b69fc6 100644
--- a/services/audioflinger/AudioWatchdog.h
+++ b/services/audioflinger/AudioWatchdog.h
@@ -41,7 +41,7 @@
 class AudioWatchdog : public Thread {
 
 public:
-    AudioWatchdog(unsigned periodMs = 50) : Thread(false /*canCallJava*/), mPaused(false),
+    explicit AudioWatchdog(unsigned periodMs = 50) : Thread(false /*canCallJava*/), mPaused(false),
             mPeriodNs(periodMs * 1000000), mMaxCycleNs(mPeriodNs * 2),
             // mOldTs
             // mLogTs initialized below
diff --git a/services/audioflinger/AutoPark.h b/services/audioflinger/AutoPark.h
index e539e47..9ac7b65 100644
--- a/services/audioflinger/AutoPark.h
+++ b/services/audioflinger/AutoPark.h
@@ -21,7 +21,7 @@
 public:
 
     // Park the specific FastThread, which can be nullptr, in hot idle if not currently idling
-    AutoPark(const sp<T>& fastThread) : mFastThread(fastThread)
+    explicit AutoPark(const sp<T>& fastThread) : mFastThread(fastThread)
     {
         mPreviousCommand = FastThreadState::HOT_IDLE;
         if (fastThread != nullptr) {
diff --git a/services/audioflinger/BufLog.cpp b/services/audioflinger/BufLog.cpp
new file mode 100644
index 0000000..9680eb5
--- /dev/null
+++ b/services/audioflinger/BufLog.cpp
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#include "BufLog.h"
+#define LOG_TAG "BufLog"
+//#define LOG_NDEBUG 0
+
+#include <errno.h>
+#include "log/log.h"
+#include <pthread.h>
+#include <stdio.h>
+#include <string.h>
+
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+
+// ------------------------------
+// BufLogSingleton
+// ------------------------------
+pthread_once_t onceControl = PTHREAD_ONCE_INIT;
+
+BufLog *BufLogSingleton::mInstance = NULL;
+
+void BufLogSingleton::initOnce() {
+    mInstance = new BufLog();
+    ALOGW("=====================================\n" \
+            "Warning: BUFLOG is defined in some part of your code.\n" \
+            "This will create large audio dumps in %s.\n" \
+            "=====================================\n", BUFLOG_BASE_PATH);
+}
+
+BufLog *BufLogSingleton::instance() {
+    pthread_once(&onceControl, initOnce);
+    return mInstance;
+}
+
+bool BufLogSingleton::instanceExists() {
+    return mInstance != NULL;
+}
+
+// ------------------------------
+// BufLog
+// ------------------------------
+
+BufLog::BufLog() {
+    memset(mStreams, 0, sizeof(mStreams));
+}
+
+BufLog::~BufLog() {
+    android::Mutex::Autolock autoLock(mLock);
+
+    for (unsigned int id = 0; id < BUFLOG_MAXSTREAMS; id++) {
+        BufLogStream *pBLStream = mStreams[id];
+        if (pBLStream != NULL) {
+            delete pBLStream ;
+            mStreams[id] = NULL;
+        }
+    }
+}
+
+size_t BufLog::write(int streamid, const char *tag, int format, int channels,
+        int samplingRate, size_t maxBytes, const void *buf, size_t size) {
+    unsigned int id = streamid % BUFLOG_MAXSTREAMS;
+    android::Mutex::Autolock autoLock(mLock);
+
+    BufLogStream *pBLStream = mStreams[id];
+
+    if (pBLStream == NULL) {
+        pBLStream = mStreams[id] = new BufLogStream(id, tag, format, channels,
+                samplingRate, maxBytes);
+        ALOG_ASSERT(pBLStream != NULL, "BufLogStream Failed to be created");
+    }
+
+    return pBLStream->write(buf, size);
+}
+
+void BufLog::reset() {
+    android::Mutex::Autolock autoLock(mLock);
+    ALOGV("Resetting all BufLogs");
+    int count = 0;
+
+    for (unsigned int id = 0; id < BUFLOG_MAXSTREAMS; id++) {
+        BufLogStream *pBLStream = mStreams[id];
+        if (pBLStream != NULL) {
+            delete pBLStream;
+            mStreams[id] = NULL;
+            count++;
+        }
+    }
+    ALOGV("Reset %d BufLogs", count);
+}
+
+// ------------------------------
+// BufLogStream
+// ------------------------------
+
+BufLogStream::BufLogStream(unsigned int id,
+        const char *tag,
+        unsigned int format,
+        unsigned int channels,
+        unsigned int samplingRate,
+        size_t maxBytes = 0) : mId(id), mFormat(format), mChannels(channels),
+                mSamplingRate(samplingRate), mMaxBytes(maxBytes) {
+    mByteCount = 0l;
+    mPaused = false;
+    if (tag != NULL) {
+        strncpy(mTag, tag, BUFLOGSTREAM_MAX_TAGSIZE);
+    } else {
+        mTag[0] = 0;
+    }
+    ALOGV("Creating BufLogStream id:%d tag:%s format:%d ch:%d sr:%d maxbytes:%zu", mId, mTag,
+            mFormat, mChannels, mSamplingRate, mMaxBytes);
+
+    //open file (s), info about tag, format, etc.
+    //timestamp
+    char timeStr[16];   //size 16: format %Y%m%d%H%M%S 14 chars + string null terminator
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+    struct tm tm;
+    localtime_r(&tv.tv_sec, &tm);
+    strftime(timeStr, sizeof(timeStr), "%Y%m%d%H%M%S", &tm);
+    char logPath[BUFLOG_MAX_PATH_SIZE];
+    snprintf(logPath, BUFLOG_MAX_PATH_SIZE, "%s/%s_%d_%s_%d_%d_%d.raw", BUFLOG_BASE_PATH, timeStr,
+            mId, mTag, mFormat, mChannels, mSamplingRate);
+    ALOGV("data output: %s", logPath);
+
+    mFile = fopen(logPath, "wb");
+    if (mFile != NULL) {
+        ALOGV("Success creating file at: %p", mFile);
+    } else {
+        ALOGE("Error: could not create file BufLogStream %s", strerror(errno));
+    }
+}
+
+void BufLogStream::closeStream_l() {
+    ALOGV("Closing BufLogStream id:%d tag:%s", mId, mTag);
+    if (mFile != NULL) {
+        fclose(mFile);
+        mFile = NULL;
+    }
+}
+
+BufLogStream::~BufLogStream() {
+    ALOGV("Destroying BufLogStream id:%d tag:%s", mId, mTag);
+    android::Mutex::Autolock autoLock(mLock);
+    closeStream_l();
+}
+
+size_t BufLogStream::write(const void *buf, size_t size) {
+
+    size_t bytes = 0;
+    if (!mPaused && mFile != NULL) {
+        if (size > 0 && buf != NULL) {
+            android::Mutex::Autolock autoLock(mLock);
+            if (mMaxBytes > 0) {
+                size = MIN(size, mMaxBytes - mByteCount);
+            }
+            bytes = fwrite(buf, 1, size, mFile);
+            mByteCount += bytes;
+            if (mMaxBytes > 0 && mMaxBytes == mByteCount) {
+                closeStream_l();
+            }
+        }
+        ALOGV("wrote %zu/%zu bytes to BufLogStream %d tag:%s. Total Bytes: %zu", bytes, size, mId,
+                mTag, mByteCount);
+    } else {
+        ALOGV("Warning: trying to write to %s BufLogStream id:%d tag:%s",
+                mPaused ? "paused" : "closed", mId, mTag);
+    }
+    return bytes;
+}
+
+bool BufLogStream::setPause(bool pause) {
+    bool old = mPaused;
+    mPaused = pause;
+    return old;
+}
+
+void BufLogStream::finalize() {
+    android::Mutex::Autolock autoLock(mLock);
+    closeStream_l();
+}
diff --git a/services/audioflinger/BufLog.h b/services/audioflinger/BufLog.h
new file mode 100644
index 0000000..1b402f4
--- /dev/null
+++ b/services/audioflinger/BufLog.h
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_BUFLOG_H
+#define ANDROID_AUDIO_BUFLOG_H
+
+/*
+ * BUFLOG creates up to BUFLOG_MAXSTREAMS simultaneous streams [0:15] of audio buffer data
+ * and saves them to disk. The files are stored in the path specified in BUFLOG_BASE_PATH and
+ * are named following this format:
+ *   YYYYMMDDHHMMSS_id_format_channels_samplingrate.raw
+ *
+ * Normally we strip BUFLOG dumps from release builds.
+ * You can modify this (for example with "#define BUFLOG_NDEBUG 0"
+ * at the top of your source file) to change that behavior.
+ *
+ * usage:
+ * - Add this to the top of the source file you want to debug:
+ *   #define BUFLOG_NDEBUG 0
+ *   #include "BufLog.h"
+ *
+ * - dump an audio buffer
+ *  BUFLOG(buff_id, buff_tag, format, channels, sampling_rate, max_bytes, buff_pointer, buff_size);
+ *
+ *  buff_id:   int [0:15]   buffer id. If a buffer doesn't exist, it is created the first time.
+ *  buff_tag:  char*        string tag used on stream filename and logs
+ *  format:    int          Audio format (audio_format_t see audio.h)
+ *  channels:  int          Channel Count
+ *  sampling_rate:  int     Sampling rate in Hz. e.g. 8000, 16000, 44100, 48000, etc
+ *  max_bytes: int [0 or positive number]
+ *                          Maximum size of the file (in bytes) to be output.
+ *                          If the value is 0, no limit.
+ *  buff_pointer: void *    Pointer to audio buffer.
+ *  buff_size:  int         Size (in bytes) of the current audio buffer to be stored.
+ *
+ *
+ *  Example usage:
+ *    int format       = mConfig.outputCfg.format;
+ *    int channels     = audio_channel_count_from_out_mask(mConfig.outputCfg.channels);
+ *    int samplingRate = mConfig.outputCfg.samplingRate;
+ *    int frameCount   = mConfig.outputCfg.buffer.frameCount;
+ *    int frameSize    = audio_bytes_per_sample((audio_format_t)format) * channels;
+ *    int buffSize     = frameCount * frameSize;
+ *    long maxBytes = 10 * samplingRate * frameSize; //10 seconds max
+ *  BUFLOG(11, "loudnes_enhancer_out", format, channels, samplingRate, maxBytes,
+ *                               mConfig.outputCfg.buffer.raw, buffSize);
+ *
+ *  Other macros:
+ *  BUFLOG_EXISTS       returns true if there is an instance of BufLog
+ *
+ *  BUFLOG_RESET        If an instance of BufLog exists, it stops the capture and closes all
+ *                      streams.
+ *                      If a new call to BUFLOG(..) is done, new streams are created.
+ */
+
+#ifndef BUFLOG_NDEBUG
+#ifdef NDEBUG
+#define BUFLOG_NDEBUG 1
+#else
+#define BUFLOG_NDEBUG 0
+#endif
+#endif
+
+/*
+ * Simplified macro to send a buffer.
+ */
+#ifndef BUFLOG
+#define __BUFLOG(STREAMID, TAG, FORMAT, CHANNELS, SAMPLINGRATE, MAXBYTES, BUF, SIZE) \
+    BufLogSingleton::instance()->write(STREAMID, TAG, FORMAT, CHANNELS, SAMPLINGRATE, MAXBYTES, \
+            BUF, SIZE)
+#if BUFLOG_NDEBUG
+#define BUFLOG(STREAMID, TAG, FORMAT, CHANNELS, SAMPLINGRATE, MAXBYTES, BUF, SIZE) \
+    do { if (0) {  } } while (0)
+#else
+#define BUFLOG(STREAMID, TAG, FORMAT, CHANNELS, SAMPLINGRATE, MAXBYTES, BUF, SIZE) \
+    __BUFLOG(STREAMID, TAG, FORMAT, CHANNELS, SAMPLINGRATE, MAXBYTES, BUF, SIZE)
+#endif
+#endif
+
+#ifndef BUFLOG_EXISTS
+#define BUFLOG_EXISTS BufLogSingleton::instanceExists()
+#endif
+
+#ifndef BUFLOG_RESET
+#define BUFLOG_RESET do { if (BufLogSingleton::instanceExists()) { \
+    BufLogSingleton::instance()->reset(); } } while (0)
+#endif
+
+
+#include <stdint.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <utils/Mutex.h>
+
+//BufLog configuration
+#define BUFLOGSTREAM_MAX_TAGSIZE    32
+#define BUFLOG_BASE_PATH            "/data/misc/audioserver"
+#define BUFLOG_MAX_PATH_SIZE        300
+
+class BufLogStream {
+public:
+    BufLogStream(unsigned int id,
+            const char *tag,
+            unsigned int format,
+            unsigned int channels,
+            unsigned int samplingRate,
+            size_t maxBytes);
+    ~BufLogStream();
+
+    // write buffer to stream
+    //  buf:  pointer to buffer
+    //  size: number of bytes to write
+    size_t          write(const void *buf, size_t size);
+
+    // pause/resume stream
+    //  pause: true = paused, false = not paused
+    //  return value: previous state of stream (paused or not).
+    bool            setPause(bool pause);
+
+    // will stop the stream and close any open file
+    // the stream can't be reopen. Instead, a new stream (and file) should be created.
+    void            finalize();
+
+private:
+    bool                mPaused;
+    const unsigned int  mId;
+    char                mTag[BUFLOGSTREAM_MAX_TAGSIZE + 1];
+    const unsigned int  mFormat;
+    const unsigned int  mChannels;
+    const unsigned int  mSamplingRate;
+    const size_t        mMaxBytes;
+    size_t              mByteCount;
+    FILE                *mFile;
+    mutable android::Mutex mLock;
+
+    void            closeStream_l();
+};
+
+
+class BufLog {
+public:
+    BufLog();
+    ~BufLog();
+    BufLog(BufLog const&) {};
+
+    //  streamid:      int [0:BUFLOG_MAXSTREAMS-1]   buffer id.
+    //                  If a buffer doesn't exist, it is created the first time is referenced
+    //  tag:           char*  string tag used on stream filename and logs
+    //  format:        int Audio format (audio_format_t see audio.h)
+    //  channels:      int          Channel Count
+    //  samplingRate:  int Sampling rate in Hz. e.g. 8000, 16000, 44100, 48000, etc
+    //  maxBytes:      int [0 or positive number]
+    //                  Maximum size of the file (in bytes) to be output.
+    //                  If the value is 0, no limit.
+    //  size:          int Size (in bytes) of the current audio buffer to be written.
+    //  buf:           void *    Pointer to audio buffer.
+    size_t          write(int streamid,
+                        const char *tag,
+                        int format,
+                        int channels,
+                        int samplingRate,
+                        size_t maxBytes,
+                        const void *buf,
+                        size_t size);
+
+    // reset will stop and close all active streams, thus finalizing any open file.
+    //  New streams will be created if write() is called again.
+    void            reset();
+
+protected:
+    static const unsigned int BUFLOG_MAXSTREAMS = 16;
+    BufLogStream    *mStreams[BUFLOG_MAXSTREAMS];
+    mutable android::Mutex mLock;
+};
+
+class BufLogSingleton {
+public:
+    static BufLog   *instance();
+    static bool     instanceExists();
+
+private:
+    static void     initOnce();
+    static BufLog   *mInstance;
+};
+
+#endif //ANDROID_AUDIO_BUFLOG_H
diff --git a/services/audioflinger/BufferProviders.cpp b/services/audioflinger/BufferProviders.cpp
deleted file mode 100644
index 7b6dfcb..0000000
--- a/services/audioflinger/BufferProviders.cpp
+++ /dev/null
@@ -1,541 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BufferProvider"
-//#define LOG_NDEBUG 0
-
-#include <audio_effects/effect_downmix.h>
-#include <audio_utils/primitives.h>
-#include <audio_utils/format.h>
-#include <media/AudioResamplerPublic.h>
-#include <media/EffectsFactoryApi.h>
-
-#include <utils/Log.h>
-
-#include "Configuration.h"
-#include "BufferProviders.h"
-
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
-#endif
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-template <typename T>
-static inline T min(const T& a, const T& b)
-{
-    return a < b ? a : b;
-}
-
-CopyBufferProvider::CopyBufferProvider(size_t inputFrameSize,
-        size_t outputFrameSize, size_t bufferFrameCount) :
-        mInputFrameSize(inputFrameSize),
-        mOutputFrameSize(outputFrameSize),
-        mLocalBufferFrameCount(bufferFrameCount),
-        mLocalBufferData(NULL),
-        mConsumed(0)
-{
-    ALOGV("CopyBufferProvider(%p)(%zu, %zu, %zu)", this,
-            inputFrameSize, outputFrameSize, bufferFrameCount);
-    LOG_ALWAYS_FATAL_IF(inputFrameSize < outputFrameSize && bufferFrameCount == 0,
-            "Requires local buffer if inputFrameSize(%zu) < outputFrameSize(%zu)",
-            inputFrameSize, outputFrameSize);
-    if (mLocalBufferFrameCount) {
-        (void)posix_memalign(&mLocalBufferData, 32, mLocalBufferFrameCount * mOutputFrameSize);
-    }
-    mBuffer.frameCount = 0;
-}
-
-CopyBufferProvider::~CopyBufferProvider()
-{
-    ALOGV("~CopyBufferProvider(%p)", this);
-    if (mBuffer.frameCount != 0) {
-        mTrackBufferProvider->releaseBuffer(&mBuffer);
-    }
-    free(mLocalBufferData);
-}
-
-status_t CopyBufferProvider::getNextBuffer(AudioBufferProvider::Buffer *pBuffer)
-{
-    //ALOGV("CopyBufferProvider(%p)::getNextBuffer(%p (%zu))",
-    //        this, pBuffer, pBuffer->frameCount);
-    if (mLocalBufferFrameCount == 0) {
-        status_t res = mTrackBufferProvider->getNextBuffer(pBuffer);
-        if (res == OK) {
-            copyFrames(pBuffer->raw, pBuffer->raw, pBuffer->frameCount);
-        }
-        return res;
-    }
-    if (mBuffer.frameCount == 0) {
-        mBuffer.frameCount = pBuffer->frameCount;
-        status_t res = mTrackBufferProvider->getNextBuffer(&mBuffer);
-        // At one time an upstream buffer provider had
-        // res == OK and mBuffer.frameCount == 0, doesn't seem to happen now 7/18/2014.
-        //
-        // By API spec, if res != OK, then mBuffer.frameCount == 0.
-        // but there may be improper implementations.
-        ALOG_ASSERT(res == OK || mBuffer.frameCount == 0);
-        if (res != OK || mBuffer.frameCount == 0) { // not needed by API spec, but to be safe.
-            pBuffer->raw = NULL;
-            pBuffer->frameCount = 0;
-            return res;
-        }
-        mConsumed = 0;
-    }
-    ALOG_ASSERT(mConsumed < mBuffer.frameCount);
-    size_t count = min(mLocalBufferFrameCount, mBuffer.frameCount - mConsumed);
-    count = min(count, pBuffer->frameCount);
-    pBuffer->raw = mLocalBufferData;
-    pBuffer->frameCount = count;
-    copyFrames(pBuffer->raw, (uint8_t*)mBuffer.raw + mConsumed * mInputFrameSize,
-            pBuffer->frameCount);
-    return OK;
-}
-
-void CopyBufferProvider::releaseBuffer(AudioBufferProvider::Buffer *pBuffer)
-{
-    //ALOGV("CopyBufferProvider(%p)::releaseBuffer(%p(%zu))",
-    //        this, pBuffer, pBuffer->frameCount);
-    if (mLocalBufferFrameCount == 0) {
-        mTrackBufferProvider->releaseBuffer(pBuffer);
-        return;
-    }
-    // LOG_ALWAYS_FATAL_IF(pBuffer->frameCount == 0, "Invalid framecount");
-    mConsumed += pBuffer->frameCount; // TODO: update for efficiency to reuse existing content
-    if (mConsumed != 0 && mConsumed >= mBuffer.frameCount) {
-        mTrackBufferProvider->releaseBuffer(&mBuffer);
-        ALOG_ASSERT(mBuffer.frameCount == 0);
-    }
-    pBuffer->raw = NULL;
-    pBuffer->frameCount = 0;
-}
-
-void CopyBufferProvider::reset()
-{
-    if (mBuffer.frameCount != 0) {
-        mTrackBufferProvider->releaseBuffer(&mBuffer);
-    }
-    mConsumed = 0;
-}
-
-DownmixerBufferProvider::DownmixerBufferProvider(
-        audio_channel_mask_t inputChannelMask,
-        audio_channel_mask_t outputChannelMask, audio_format_t format,
-        uint32_t sampleRate, int32_t sessionId, size_t bufferFrameCount) :
-        CopyBufferProvider(
-            audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(inputChannelMask),
-            audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(outputChannelMask),
-            bufferFrameCount)  // set bufferFrameCount to 0 to do in-place
-{
-    ALOGV("DownmixerBufferProvider(%p)(%#x, %#x, %#x %u %d)",
-            this, inputChannelMask, outputChannelMask, format,
-            sampleRate, sessionId);
-    if (!sIsMultichannelCapable
-            || EffectCreate(&sDwnmFxDesc.uuid,
-                    sessionId,
-                    SESSION_ID_INVALID_AND_IGNORED,
-                    &mDownmixHandle) != 0) {
-         ALOGE("DownmixerBufferProvider() error creating downmixer effect");
-         mDownmixHandle = NULL;
-         return;
-     }
-     // channel input configuration will be overridden per-track
-     mDownmixConfig.inputCfg.channels = inputChannelMask;   // FIXME: Should be bits
-     mDownmixConfig.outputCfg.channels = outputChannelMask; // FIXME: should be bits
-     mDownmixConfig.inputCfg.format = format;
-     mDownmixConfig.outputCfg.format = format;
-     mDownmixConfig.inputCfg.samplingRate = sampleRate;
-     mDownmixConfig.outputCfg.samplingRate = sampleRate;
-     mDownmixConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ;
-     mDownmixConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE;
-     // input and output buffer provider, and frame count will not be used as the downmix effect
-     // process() function is called directly (see DownmixerBufferProvider::getNextBuffer())
-     mDownmixConfig.inputCfg.mask = EFFECT_CONFIG_SMP_RATE | EFFECT_CONFIG_CHANNELS |
-             EFFECT_CONFIG_FORMAT | EFFECT_CONFIG_ACC_MODE;
-     mDownmixConfig.outputCfg.mask = mDownmixConfig.inputCfg.mask;
-
-     int cmdStatus;
-     uint32_t replySize = sizeof(int);
-
-     // Configure downmixer
-     status_t status = (*mDownmixHandle)->command(mDownmixHandle,
-             EFFECT_CMD_SET_CONFIG /*cmdCode*/, sizeof(effect_config_t) /*cmdSize*/,
-             &mDownmixConfig /*pCmdData*/,
-             &replySize, &cmdStatus /*pReplyData*/);
-     if (status != 0 || cmdStatus != 0) {
-         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while configuring downmixer",
-                 status, cmdStatus);
-         EffectRelease(mDownmixHandle);
-         mDownmixHandle = NULL;
-         return;
-     }
-
-     // Enable downmixer
-     replySize = sizeof(int);
-     status = (*mDownmixHandle)->command(mDownmixHandle,
-             EFFECT_CMD_ENABLE /*cmdCode*/, 0 /*cmdSize*/, NULL /*pCmdData*/,
-             &replySize, &cmdStatus /*pReplyData*/);
-     if (status != 0 || cmdStatus != 0) {
-         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while enabling downmixer",
-                 status, cmdStatus);
-         EffectRelease(mDownmixHandle);
-         mDownmixHandle = NULL;
-         return;
-     }
-
-     // Set downmix type
-     // parameter size rounded for padding on 32bit boundary
-     const int psizePadded = ((sizeof(downmix_params_t) - 1)/sizeof(int) + 1) * sizeof(int);
-     const int downmixParamSize =
-             sizeof(effect_param_t) + psizePadded + sizeof(downmix_type_t);
-     effect_param_t * const param = (effect_param_t *) malloc(downmixParamSize);
-     param->psize = sizeof(downmix_params_t);
-     const downmix_params_t downmixParam = DOWNMIX_PARAM_TYPE;
-     memcpy(param->data, &downmixParam, param->psize);
-     const downmix_type_t downmixType = DOWNMIX_TYPE_FOLD;
-     param->vsize = sizeof(downmix_type_t);
-     memcpy(param->data + psizePadded, &downmixType, param->vsize);
-     replySize = sizeof(int);
-     status = (*mDownmixHandle)->command(mDownmixHandle,
-             EFFECT_CMD_SET_PARAM /* cmdCode */, downmixParamSize /* cmdSize */,
-             param /*pCmdData*/, &replySize, &cmdStatus /*pReplyData*/);
-     free(param);
-     if (status != 0 || cmdStatus != 0) {
-         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while setting downmix type",
-                 status, cmdStatus);
-         EffectRelease(mDownmixHandle);
-         mDownmixHandle = NULL;
-         return;
-     }
-     ALOGV("DownmixerBufferProvider() downmix type set to %d", (int) downmixType);
-}
-
-DownmixerBufferProvider::~DownmixerBufferProvider()
-{
-    ALOGV("~DownmixerBufferProvider (%p)", this);
-    EffectRelease(mDownmixHandle);
-    mDownmixHandle = NULL;
-}
-
-void DownmixerBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
-{
-    mDownmixConfig.inputCfg.buffer.frameCount = frames;
-    mDownmixConfig.inputCfg.buffer.raw = const_cast<void *>(src);
-    mDownmixConfig.outputCfg.buffer.frameCount = frames;
-    mDownmixConfig.outputCfg.buffer.raw = dst;
-    // may be in-place if src == dst.
-    status_t res = (*mDownmixHandle)->process(mDownmixHandle,
-            &mDownmixConfig.inputCfg.buffer, &mDownmixConfig.outputCfg.buffer);
-    ALOGE_IF(res != OK, "DownmixBufferProvider error %d", res);
-}
-
-/* call once in a pthread_once handler. */
-/*static*/ status_t DownmixerBufferProvider::init()
-{
-    // find multichannel downmix effect if we have to play multichannel content
-    uint32_t numEffects = 0;
-    int ret = EffectQueryNumberEffects(&numEffects);
-    if (ret != 0) {
-        ALOGE("AudioMixer() error %d querying number of effects", ret);
-        return NO_INIT;
-    }
-    ALOGV("EffectQueryNumberEffects() numEffects=%d", numEffects);
-
-    for (uint32_t i = 0 ; i < numEffects ; i++) {
-        if (EffectQueryEffect(i, &sDwnmFxDesc) == 0) {
-            ALOGV("effect %d is called %s", i, sDwnmFxDesc.name);
-            if (memcmp(&sDwnmFxDesc.type, EFFECT_UIID_DOWNMIX, sizeof(effect_uuid_t)) == 0) {
-                ALOGI("found effect \"%s\" from %s",
-                        sDwnmFxDesc.name, sDwnmFxDesc.implementor);
-                sIsMultichannelCapable = true;
-                break;
-            }
-        }
-    }
-    ALOGW_IF(!sIsMultichannelCapable, "unable to find downmix effect");
-    return NO_INIT;
-}
-
-/*static*/ bool DownmixerBufferProvider::sIsMultichannelCapable = false;
-/*static*/ effect_descriptor_t DownmixerBufferProvider::sDwnmFxDesc;
-
-RemixBufferProvider::RemixBufferProvider(audio_channel_mask_t inputChannelMask,
-        audio_channel_mask_t outputChannelMask, audio_format_t format,
-        size_t bufferFrameCount) :
-        CopyBufferProvider(
-                audio_bytes_per_sample(format)
-                    * audio_channel_count_from_out_mask(inputChannelMask),
-                audio_bytes_per_sample(format)
-                    * audio_channel_count_from_out_mask(outputChannelMask),
-                bufferFrameCount),
-        mFormat(format),
-        mSampleSize(audio_bytes_per_sample(format)),
-        mInputChannels(audio_channel_count_from_out_mask(inputChannelMask)),
-        mOutputChannels(audio_channel_count_from_out_mask(outputChannelMask))
-{
-    ALOGV("RemixBufferProvider(%p)(%#x, %#x, %#x) %zu %zu",
-            this, format, inputChannelMask, outputChannelMask,
-            mInputChannels, mOutputChannels);
-    (void) memcpy_by_index_array_initialization_from_channel_mask(
-            mIdxAry, ARRAY_SIZE(mIdxAry), outputChannelMask, inputChannelMask);
-}
-
-void RemixBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
-{
-    memcpy_by_index_array(dst, mOutputChannels,
-            src, mInputChannels, mIdxAry, mSampleSize, frames);
-}
-
-ReformatBufferProvider::ReformatBufferProvider(int32_t channelCount,
-        audio_format_t inputFormat, audio_format_t outputFormat,
-        size_t bufferFrameCount) :
-        CopyBufferProvider(
-                channelCount * audio_bytes_per_sample(inputFormat),
-                channelCount * audio_bytes_per_sample(outputFormat),
-                bufferFrameCount),
-        mChannelCount(channelCount),
-        mInputFormat(inputFormat),
-        mOutputFormat(outputFormat)
-{
-    ALOGV("ReformatBufferProvider(%p)(%u, %#x, %#x)",
-            this, channelCount, inputFormat, outputFormat);
-}
-
-void ReformatBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
-{
-    memcpy_by_audio_format(dst, mOutputFormat, src, mInputFormat, frames * mChannelCount);
-}
-
-TimestretchBufferProvider::TimestretchBufferProvider(int32_t channelCount,
-        audio_format_t format, uint32_t sampleRate, const AudioPlaybackRate &playbackRate) :
-        mChannelCount(channelCount),
-        mFormat(format),
-        mSampleRate(sampleRate),
-        mFrameSize(channelCount * audio_bytes_per_sample(format)),
-        mLocalBufferFrameCount(0),
-        mLocalBufferData(NULL),
-        mRemaining(0),
-        mSonicStream(sonicCreateStream(sampleRate, mChannelCount)),
-        mFallbackFailErrorShown(false),
-        mAudioPlaybackRateValid(false)
-{
-    LOG_ALWAYS_FATAL_IF(mSonicStream == NULL,
-            "TimestretchBufferProvider can't allocate Sonic stream");
-
-    setPlaybackRate(playbackRate);
-    ALOGV("TimestretchBufferProvider(%p)(%u, %#x, %u %f %f %d %d)",
-            this, channelCount, format, sampleRate, playbackRate.mSpeed,
-            playbackRate.mPitch, playbackRate.mStretchMode, playbackRate.mFallbackMode);
-    mBuffer.frameCount = 0;
-}
-
-TimestretchBufferProvider::~TimestretchBufferProvider()
-{
-    ALOGV("~TimestretchBufferProvider(%p)", this);
-    sonicDestroyStream(mSonicStream);
-    if (mBuffer.frameCount != 0) {
-        mTrackBufferProvider->releaseBuffer(&mBuffer);
-    }
-    free(mLocalBufferData);
-}
-
-status_t TimestretchBufferProvider::getNextBuffer(
-        AudioBufferProvider::Buffer *pBuffer)
-{
-    ALOGV("TimestretchBufferProvider(%p)::getNextBuffer(%p (%zu))",
-            this, pBuffer, pBuffer->frameCount);
-
-    // BYPASS
-    //return mTrackBufferProvider->getNextBuffer(pBuffer);
-
-    // check if previously processed data is sufficient.
-    if (pBuffer->frameCount <= mRemaining) {
-        ALOGV("previous sufficient");
-        pBuffer->raw = mLocalBufferData;
-        return OK;
-    }
-
-    // do we need to resize our buffer?
-    if (pBuffer->frameCount > mLocalBufferFrameCount) {
-        void *newmem;
-        if (posix_memalign(&newmem, 32, pBuffer->frameCount * mFrameSize) == OK) {
-            if (mRemaining != 0) {
-                memcpy(newmem, mLocalBufferData, mRemaining * mFrameSize);
-            }
-            free(mLocalBufferData);
-            mLocalBufferData = newmem;
-            mLocalBufferFrameCount = pBuffer->frameCount;
-        }
-    }
-
-    // need to fetch more data
-    const size_t outputDesired = pBuffer->frameCount - mRemaining;
-    size_t dstAvailable;
-    do {
-        mBuffer.frameCount = mPlaybackRate.mSpeed == AUDIO_TIMESTRETCH_SPEED_NORMAL
-                ? outputDesired : outputDesired * mPlaybackRate.mSpeed + 1;
-
-        status_t res = mTrackBufferProvider->getNextBuffer(&mBuffer);
-
-        ALOG_ASSERT(res == OK || mBuffer.frameCount == 0);
-        if (res != OK || mBuffer.frameCount == 0) { // not needed by API spec, but to be safe.
-            ALOGV("upstream provider cannot provide data");
-            if (mRemaining == 0) {
-                pBuffer->raw = NULL;
-                pBuffer->frameCount = 0;
-                return res;
-            } else { // return partial count
-                pBuffer->raw = mLocalBufferData;
-                pBuffer->frameCount = mRemaining;
-                return OK;
-            }
-        }
-
-        // time-stretch the data
-        dstAvailable = min(mLocalBufferFrameCount - mRemaining, outputDesired);
-        size_t srcAvailable = mBuffer.frameCount;
-        processFrames((uint8_t*)mLocalBufferData + mRemaining * mFrameSize, &dstAvailable,
-                mBuffer.raw, &srcAvailable);
-
-        // release all data consumed
-        mBuffer.frameCount = srcAvailable;
-        mTrackBufferProvider->releaseBuffer(&mBuffer);
-    } while (dstAvailable == 0); // try until we get output data or upstream provider fails.
-
-    // update buffer vars with the actual data processed and return with buffer
-    mRemaining += dstAvailable;
-
-    pBuffer->raw = mLocalBufferData;
-    pBuffer->frameCount = mRemaining;
-
-    return OK;
-}
-
-void TimestretchBufferProvider::releaseBuffer(AudioBufferProvider::Buffer *pBuffer)
-{
-    ALOGV("TimestretchBufferProvider(%p)::releaseBuffer(%p (%zu))",
-       this, pBuffer, pBuffer->frameCount);
-
-    // BYPASS
-    //return mTrackBufferProvider->releaseBuffer(pBuffer);
-
-    // LOG_ALWAYS_FATAL_IF(pBuffer->frameCount == 0, "Invalid framecount");
-    if (pBuffer->frameCount < mRemaining) {
-        memcpy(mLocalBufferData,
-                (uint8_t*)mLocalBufferData + pBuffer->frameCount * mFrameSize,
-                (mRemaining - pBuffer->frameCount) * mFrameSize);
-        mRemaining -= pBuffer->frameCount;
-    } else if (pBuffer->frameCount == mRemaining) {
-        mRemaining = 0;
-    } else {
-        LOG_ALWAYS_FATAL("Releasing more frames(%zu) than available(%zu)",
-                pBuffer->frameCount, mRemaining);
-    }
-
-    pBuffer->raw = NULL;
-    pBuffer->frameCount = 0;
-}
-
-void TimestretchBufferProvider::reset()
-{
-    mRemaining = 0;
-}
-
-status_t TimestretchBufferProvider::setPlaybackRate(const AudioPlaybackRate &playbackRate)
-{
-    mPlaybackRate = playbackRate;
-    mFallbackFailErrorShown = false;
-    sonicSetSpeed(mSonicStream, mPlaybackRate.mSpeed);
-    //TODO: pitch is ignored for now
-    //TODO: optimize: if parameters are the same, don't do any extra computation.
-
-    mAudioPlaybackRateValid = isAudioPlaybackRateValid(mPlaybackRate);
-    return OK;
-}
-
-void TimestretchBufferProvider::processFrames(void *dstBuffer, size_t *dstFrames,
-        const void *srcBuffer, size_t *srcFrames)
-{
-    ALOGV("processFrames(%zu %zu)  remaining(%zu)", *dstFrames, *srcFrames, mRemaining);
-    // Note dstFrames is the required number of frames.
-
-    if (!mAudioPlaybackRateValid) {
-        //fallback mode
-        // Ensure consumption from src is as expected.
-        // TODO: add logic to track "very accurate" consumption related to speed, original sampling
-        // rate, actual frames processed.
-
-        const size_t targetSrc = *dstFrames * mPlaybackRate.mSpeed;
-        if (*srcFrames < targetSrc) { // limit dst frames to that possible
-            *dstFrames = *srcFrames / mPlaybackRate.mSpeed;
-        } else if (*srcFrames > targetSrc + 1) {
-            *srcFrames = targetSrc + 1;
-        }
-        if (*dstFrames > 0) {
-            switch(mPlaybackRate.mFallbackMode) {
-            case AUDIO_TIMESTRETCH_FALLBACK_CUT_REPEAT:
-                if (*dstFrames <= *srcFrames) {
-                      size_t copySize = mFrameSize * *dstFrames;
-                      memcpy(dstBuffer, srcBuffer, copySize);
-                  } else {
-                      // cyclically repeat the source.
-                      for (size_t count = 0; count < *dstFrames; count += *srcFrames) {
-                          size_t remaining = min(*srcFrames, *dstFrames - count);
-                          memcpy((uint8_t*)dstBuffer + mFrameSize * count,
-                                  srcBuffer, mFrameSize * remaining);
-                      }
-                  }
-                break;
-            case AUDIO_TIMESTRETCH_FALLBACK_DEFAULT:
-            case AUDIO_TIMESTRETCH_FALLBACK_MUTE:
-                memset(dstBuffer,0, mFrameSize * *dstFrames);
-                break;
-            case AUDIO_TIMESTRETCH_FALLBACK_FAIL:
-            default:
-                if(!mFallbackFailErrorShown) {
-                    ALOGE("invalid parameters in TimestretchBufferProvider fallbackMode:%d",
-                            mPlaybackRate.mFallbackMode);
-                    mFallbackFailErrorShown = true;
-                }
-                break;
-            }
-        }
-    } else {
-        switch (mFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            if (sonicWriteFloatToStream(mSonicStream, (float*)srcBuffer, *srcFrames) != 1) {
-                ALOGE("sonicWriteFloatToStream cannot realloc");
-                *srcFrames = 0; // cannot consume all of srcBuffer
-            }
-            *dstFrames = sonicReadFloatFromStream(mSonicStream, (float*)dstBuffer, *dstFrames);
-            break;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            if (sonicWriteShortToStream(mSonicStream, (short*)srcBuffer, *srcFrames) != 1) {
-                ALOGE("sonicWriteShortToStream cannot realloc");
-                *srcFrames = 0; // cannot consume all of srcBuffer
-            }
-            *dstFrames = sonicReadShortFromStream(mSonicStream, (short*)dstBuffer, *dstFrames);
-            break;
-        default:
-            // could also be caught on construction
-            LOG_ALWAYS_FATAL("invalid format %#x for TimestretchBufferProvider", mFormat);
-        }
-    }
-}
-// ----------------------------------------------------------------------------
-} // namespace android
diff --git a/services/audioflinger/BufferProviders.h b/services/audioflinger/BufferProviders.h
deleted file mode 100644
index abd43c6..0000000
--- a/services/audioflinger/BufferProviders.h
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_BUFFER_PROVIDERS_H
-#define ANDROID_BUFFER_PROVIDERS_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <hardware/audio_effect.h>
-#include <media/AudioBufferProvider.h>
-#include <system/audio.h>
-#include <sonic.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class PassthruBufferProvider : public AudioBufferProvider {
-public:
-    PassthruBufferProvider() : mTrackBufferProvider(NULL) { }
-
-    virtual ~PassthruBufferProvider() { }
-
-    // call this to release the buffer to the upstream provider.
-    // treat it as an audio discontinuity for future samples.
-    virtual void reset() { }
-
-    // set the upstream buffer provider. Consider calling "reset" before this function.
-    virtual void setBufferProvider(AudioBufferProvider *p) {
-        mTrackBufferProvider = p;
-    }
-
-protected:
-    AudioBufferProvider *mTrackBufferProvider;
-};
-
-// Base AudioBufferProvider class used for DownMixerBufferProvider, RemixBufferProvider,
-// and ReformatBufferProvider.
-// It handles a private buffer for use in converting format or channel masks from the
-// input data to a form acceptable by the mixer.
-// TODO: Make a ResamplerBufferProvider when integers are entirely removed from the
-// processing pipeline.
-class CopyBufferProvider : public PassthruBufferProvider {
-public:
-    // Use a private buffer of bufferFrameCount frames (each frame is outputFrameSize bytes).
-    // If bufferFrameCount is 0, no private buffer is created and in-place modification of
-    // the upstream buffer provider's buffers is performed by copyFrames().
-    CopyBufferProvider(size_t inputFrameSize, size_t outputFrameSize,
-            size_t bufferFrameCount);
-    virtual ~CopyBufferProvider();
-
-    // Overrides AudioBufferProvider methods
-    virtual status_t getNextBuffer(Buffer *buffer);
-    virtual void releaseBuffer(Buffer *buffer);
-
-    // Overrides PassthruBufferProvider
-    virtual void reset();
-
-    // this function should be supplied by the derived class.  It converts
-    // #frames in the *src pointer to the *dst pointer.  It is public because
-    // some providers will allow this to work on arbitrary buffers outside
-    // of the internal buffers.
-    virtual void copyFrames(void *dst, const void *src, size_t frames) = 0;
-
-protected:
-    const size_t         mInputFrameSize;
-    const size_t         mOutputFrameSize;
-private:
-    AudioBufferProvider::Buffer mBuffer;
-    const size_t         mLocalBufferFrameCount;
-    void                *mLocalBufferData;
-    size_t               mConsumed;
-};
-
-// DownmixerBufferProvider derives from CopyBufferProvider to provide
-// position dependent downmixing by an Audio Effect.
-class DownmixerBufferProvider : public CopyBufferProvider {
-public:
-    DownmixerBufferProvider(audio_channel_mask_t inputChannelMask,
-            audio_channel_mask_t outputChannelMask, audio_format_t format,
-            uint32_t sampleRate, int32_t sessionId, size_t bufferFrameCount);
-    virtual ~DownmixerBufferProvider();
-    //Overrides
-    virtual void copyFrames(void *dst, const void *src, size_t frames);
-
-    bool isValid() const { return mDownmixHandle != NULL; }
-    static status_t init();
-    static bool isMultichannelCapable() { return sIsMultichannelCapable; }
-
-protected:
-    effect_handle_t    mDownmixHandle;
-    effect_config_t    mDownmixConfig;
-
-    // effect descriptor for the downmixer used by the mixer
-    static effect_descriptor_t sDwnmFxDesc;
-    // indicates whether a downmix effect has been found and is usable by this mixer
-    static bool                sIsMultichannelCapable;
-    // FIXME: should we allow effects outside of the framework?
-    // We need to here. A special ioId that must be <= -2 so it does not map to a session.
-    static const int32_t SESSION_ID_INVALID_AND_IGNORED = -2;
-};
-
-// RemixBufferProvider derives from CopyBufferProvider to perform an
-// upmix or downmix to the proper channel count and mask.
-class RemixBufferProvider : public CopyBufferProvider {
-public:
-    RemixBufferProvider(audio_channel_mask_t inputChannelMask,
-            audio_channel_mask_t outputChannelMask, audio_format_t format,
-            size_t bufferFrameCount);
-    //Overrides
-    virtual void copyFrames(void *dst, const void *src, size_t frames);
-
-protected:
-    const audio_format_t mFormat;
-    const size_t         mSampleSize;
-    const size_t         mInputChannels;
-    const size_t         mOutputChannels;
-    int8_t               mIdxAry[sizeof(uint32_t) * 8]; // 32 bits => channel indices
-};
-
-// ReformatBufferProvider derives from CopyBufferProvider to convert the input data
-// to an acceptable mixer input format type.
-class ReformatBufferProvider : public CopyBufferProvider {
-public:
-    ReformatBufferProvider(int32_t channelCount,
-            audio_format_t inputFormat, audio_format_t outputFormat,
-            size_t bufferFrameCount);
-    virtual void copyFrames(void *dst, const void *src, size_t frames);
-
-protected:
-    const uint32_t       mChannelCount;
-    const audio_format_t mInputFormat;
-    const audio_format_t mOutputFormat;
-};
-
-// TimestretchBufferProvider derives from PassthruBufferProvider for time stretching
-class TimestretchBufferProvider : public PassthruBufferProvider {
-public:
-    TimestretchBufferProvider(int32_t channelCount,
-            audio_format_t format, uint32_t sampleRate,
-            const AudioPlaybackRate &playbackRate);
-    virtual ~TimestretchBufferProvider();
-
-    // Overrides AudioBufferProvider methods
-    virtual status_t getNextBuffer(Buffer* buffer);
-    virtual void releaseBuffer(Buffer* buffer);
-
-    // Overrides PassthruBufferProvider
-    virtual void reset();
-
-    virtual status_t setPlaybackRate(const AudioPlaybackRate &playbackRate);
-
-    // processes frames
-    // dstBuffer is where to place the data
-    // dstFrames [in/out] is the desired frames (return with actual placed in buffer)
-    // srcBuffer is the source data
-    // srcFrames [in/out] is the available source frames (return with consumed)
-    virtual void processFrames(void *dstBuffer, size_t *dstFrames,
-            const void *srcBuffer, size_t *srcFrames);
-
-protected:
-    const uint32_t       mChannelCount;
-    const audio_format_t mFormat;
-    const uint32_t       mSampleRate; // const for now (TODO change this)
-    const size_t         mFrameSize;
-    AudioPlaybackRate    mPlaybackRate;
-
-private:
-    AudioBufferProvider::Buffer mBuffer;          // for upstream request
-    size_t               mLocalBufferFrameCount;  // size of local buffer
-    void                *mLocalBufferData;        // internally allocated buffer for data returned
-                                                  // to caller
-    size_t               mRemaining;              // remaining data in local buffer
-    sonicStream          mSonicStream;            // handle to sonic timestretch object
-    //FIXME: this dependency should be abstracted out
-    bool                 mFallbackFailErrorShown; // log fallback error only once
-    bool                 mAudioPlaybackRateValid; // flag for current parameters validity
-};
-
-// ----------------------------------------------------------------------------
-} // namespace android
-
-#endif // ANDROID_BUFFER_PROVIDERS_H
diff --git a/services/audioflinger/Effects.cpp b/services/audioflinger/Effects.cpp
index b588685..60eca7e 100644
--- a/services/audioflinger/Effects.cpp
+++ b/services/audioflinger/Effects.cpp
@@ -21,10 +21,11 @@
 
 #include "Configuration.h"
 #include <utils/Log.h>
-#include <audio_effects/effect_visualizer.h>
 #include <audio_utils/primitives.h>
 #include <private/media/AudioEffectShared.h>
-#include <media/EffectsFactoryApi.h>
+#include <media/audiohal/EffectHalInterface.h>
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+#include <system/audio_effects/effect_visualizer.h>
 
 #include "AudioFlinger.h"
 #include "ServiceUtilities.h"
@@ -65,7 +66,6 @@
       mThread(thread), mChain(chain), mId(id), mSessionId(sessionId),
       mDescriptor(*desc),
       // mConfig is set by configure() and not used before then
-      mEffectInterface(NULL),
       mStatus(NO_INIT), mState(IDLE),
       // mMaxDisableWaitCnt is set by configure() and not used before then
       // mDisableWaitCnt is set by process() and updateState() and not used before then
@@ -76,7 +76,15 @@
     int lStatus;
 
     // create effect engine from effect factory
-    mStatus = EffectCreate(&desc->uuid, sessionId, thread->id(), &mEffectInterface);
+    mStatus = -ENODEV;
+    sp<AudioFlinger> audioFlinger = mAudioFlinger.promote();
+    if (audioFlinger != 0) {
+        sp<EffectsFactoryHalInterface> effectsFactory = audioFlinger->getEffectsFactory();
+        if (effectsFactory != 0) {
+            mStatus = effectsFactory->createEffect(
+                    &desc->uuid, sessionId, thread->id(), &mEffectInterface);
+        }
+    }
 
     if (mStatus != NO_ERROR) {
         return;
@@ -88,22 +96,22 @@
     }
 
     setOffloaded(thread->type() == ThreadBase::OFFLOAD, thread->id());
+    ALOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface.get());
 
-    ALOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface);
     return;
 Error:
-    EffectRelease(mEffectInterface);
-    mEffectInterface = NULL;
+    mEffectInterface.clear();
     ALOGV("Constructor Error %d", mStatus);
 }
 
 AudioFlinger::EffectModule::~EffectModule()
 {
     ALOGV("Destructor %p", this);
-    if (mEffectInterface != NULL) {
+    if (mEffectInterface != 0) {
         ALOGW("EffectModule %p destructor called with unreleased interface", this);
         release_l();
     }
+
 }
 
 status_t AudioFlinger::EffectModule::addHandle(EffectHandle *handle)
@@ -180,6 +188,7 @@
     // this object is released which can happen after next process is called.
     if (mHandles.size() == 0 && !mPinned) {
         mState = DESTROYED;
+        mEffectInterface->close();
     }
 
     return mHandles.size();
@@ -267,9 +276,7 @@
 {
     Mutex::Autolock _l(mLock);
 
-    if (mState == DESTROYED || mEffectInterface == NULL ||
-            mConfig.inputCfg.buffer.raw == NULL ||
-            mConfig.outputCfg.buffer.raw == NULL) {
+    if (mState == DESTROYED || mEffectInterface == 0 || mInBuffer == 0 || mOutBuffer == 0) {
         return;
     }
 
@@ -283,9 +290,7 @@
         int ret;
         if (isProcessImplemented()) {
             // do the actual processing in the effect engine
-            ret = (*mEffectInterface)->process(mEffectInterface,
-                                                   &mConfig.inputCfg.buffer,
-                                                   &mConfig.outputCfg.buffer);
+            ret = mEffectInterface->process();
         } else {
             if (mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) {
                 size_t frameCnt = mConfig.inputCfg.buffer.frameCount * FCC_2;  //always stereo here
@@ -331,10 +336,10 @@
 
 void AudioFlinger::EffectModule::reset_l()
 {
-    if (mStatus != NO_ERROR || mEffectInterface == NULL) {
+    if (mStatus != NO_ERROR || mEffectInterface == 0) {
         return;
     }
-    (*mEffectInterface)->command(mEffectInterface, EFFECT_CMD_RESET, 0, NULL, 0, NULL);
+    mEffectInterface->command(EFFECT_CMD_RESET, 0, NULL, 0, NULL);
 }
 
 status_t AudioFlinger::EffectModule::configure()
@@ -344,7 +349,7 @@
     uint32_t size;
     audio_channel_mask_t channelMask;
 
-    if (mEffectInterface == NULL) {
+    if (mEffectInterface == 0) {
         status = NO_INIT;
         goto exit;
     }
@@ -361,6 +366,8 @@
 
     if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
         mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_MONO;
+        mConfig.outputCfg.channels = AUDIO_CHANNEL_OUT_STEREO;
+        ALOGV("Overriding auxiliary effect input as MONO and output as STEREO");
     } else {
         mConfig.inputCfg.channels = channelMask;
         // TODO: Update this logic when multichannel effects are implemented.
@@ -401,18 +408,23 @@
     mConfig.outputCfg.mask = EFFECT_CONFIG_ALL;
     mConfig.inputCfg.buffer.frameCount = thread->frameCount();
     mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount;
+    if (mInBuffer != 0) {
+        mInBuffer->setFrameCount(mConfig.inputCfg.buffer.frameCount);
+    }
+    if (mOutBuffer != 0) {
+        mOutBuffer->setFrameCount(mConfig.outputCfg.buffer.frameCount);
+    }
 
     ALOGV("configure() %p thread %p buffer %p framecount %zu",
             this, thread.get(), mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount);
 
     status_t cmdStatus;
     size = sizeof(int);
-    status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_SET_CONFIG,
-                                                   sizeof(effect_config_t),
-                                                   &mConfig,
-                                                   &size,
-                                                   &cmdStatus);
+    status = mEffectInterface->command(EFFECT_CMD_SET_CONFIG,
+                                       sizeof(effect_config_t),
+                                       &mConfig,
+                                       &size,
+                                       &cmdStatus);
     if (status == 0) {
         status = cmdStatus;
     }
@@ -434,12 +446,11 @@
         }
 
         *((int32_t *)p->data + 1)= latency;
-        (*mEffectInterface)->command(mEffectInterface,
-                                     EFFECT_CMD_SET_PARAM,
-                                     sizeof(effect_param_t) + 8,
-                                     &buf32,
-                                     &size,
-                                     &cmdStatus);
+        mEffectInterface->command(EFFECT_CMD_SET_PARAM,
+                                  sizeof(effect_param_t) + 8,
+                                  &buf32,
+                                  &size,
+                                  &cmdStatus);
     }
 
     mMaxDisableWaitCnt = (MAX_DISABLE_TIME_MS * mConfig.outputCfg.samplingRate) /
@@ -453,17 +464,16 @@
 status_t AudioFlinger::EffectModule::init()
 {
     Mutex::Autolock _l(mLock);
-    if (mEffectInterface == NULL) {
+    if (mEffectInterface == 0) {
         return NO_INIT;
     }
     status_t cmdStatus;
     uint32_t size = sizeof(status_t);
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_INIT,
-                                                   0,
-                                                   NULL,
-                                                   &size,
-                                                   &cmdStatus);
+    status_t status = mEffectInterface->command(EFFECT_CMD_INIT,
+                                                0,
+                                                NULL,
+                                                &size,
+                                                &cmdStatus);
     if (status == 0) {
         status = cmdStatus;
     }
@@ -476,9 +486,10 @@
          (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) {
         sp<ThreadBase> thread = mThread.promote();
         if (thread != 0) {
-            audio_stream_t *stream = thread->stream();
-            if (stream != NULL) {
-                stream->add_audio_effect(stream, mEffectInterface);
+            sp<StreamHalInterface> stream = thread->stream();
+            if (stream != 0) {
+                status_t result = stream->addEffect(mEffectInterface);
+                ALOGE_IF(result != OK, "Error when adding effect: %d", result);
             }
         }
     }
@@ -504,7 +515,7 @@
 
 status_t AudioFlinger::EffectModule::start_l()
 {
-    if (mEffectInterface == NULL) {
+    if (mEffectInterface == 0) {
         return NO_INIT;
     }
     if (mStatus != NO_ERROR) {
@@ -512,12 +523,11 @@
     }
     status_t cmdStatus;
     uint32_t size = sizeof(status_t);
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_ENABLE,
-                                                   0,
-                                                   NULL,
-                                                   &size,
-                                                   &cmdStatus);
+    status_t status = mEffectInterface->command(EFFECT_CMD_ENABLE,
+                                                0,
+                                                NULL,
+                                                &size,
+                                                &cmdStatus);
     if (status == 0) {
         status = cmdStatus;
     }
@@ -535,7 +545,7 @@
 
 status_t AudioFlinger::EffectModule::stop_l()
 {
-    if (mEffectInterface == NULL) {
+    if (mEffectInterface == 0) {
         return NO_INIT;
     }
     if (mStatus != NO_ERROR) {
@@ -543,12 +553,11 @@
     }
     status_t cmdStatus = NO_ERROR;
     uint32_t size = sizeof(status_t);
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_DISABLE,
-                                                   0,
-                                                   NULL,
-                                                   &size,
-                                                   &cmdStatus);
+    status_t status = mEffectInterface->command(EFFECT_CMD_DISABLE,
+                                                0,
+                                                NULL,
+                                                &size,
+                                                &cmdStatus);
     if (status == NO_ERROR) {
         status = cmdStatus;
     }
@@ -561,11 +570,11 @@
 // must be called with EffectChain::mLock held
 void AudioFlinger::EffectModule::release_l()
 {
-    if (mEffectInterface != NULL) {
+    if (mEffectInterface != 0) {
         remove_effect_from_hal_l();
         // release effect engine
-        EffectRelease(mEffectInterface);
-        mEffectInterface = NULL;
+        mEffectInterface->close();
+        mEffectInterface.clear();
     }
 }
 
@@ -575,9 +584,10 @@
              (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) {
         sp<ThreadBase> thread = mThread.promote();
         if (thread != 0) {
-            audio_stream_t *stream = thread->stream();
-            if (stream != NULL) {
-                stream->remove_audio_effect(stream, mEffectInterface);
+            sp<StreamHalInterface> stream = thread->stream();
+            if (stream != 0) {
+                status_t result = stream->removeEffect(mEffectInterface);
+                ALOGE_IF(result != OK, "Error when removing effect: %d", result);
             }
         }
     }
@@ -598,25 +608,26 @@
                                              void *pReplyData)
 {
     Mutex::Autolock _l(mLock);
-    ALOGVV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface);
+    ALOGVV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface.get());
 
-    if (mState == DESTROYED || mEffectInterface == NULL) {
+    if (mState == DESTROYED || mEffectInterface == 0) {
         return NO_INIT;
     }
     if (mStatus != NO_ERROR) {
         return mStatus;
     }
     if (cmdCode == EFFECT_CMD_GET_PARAM &&
-            (*replySize < sizeof(effect_param_t) ||
-                    ((effect_param_t *)pCmdData)->psize > *replySize - sizeof(effect_param_t))) {
-        android_errorWriteLog(0x534e4554, "29251553");
-        return -EINVAL;
-    }
-    if (cmdCode == EFFECT_CMD_GET_PARAM &&
             (sizeof(effect_param_t) > cmdSize ||
                     ((effect_param_t *)pCmdData)->psize > cmdSize
                                                           - sizeof(effect_param_t))) {
         android_errorWriteLog(0x534e4554, "32438594");
+        android_errorWriteLog(0x534e4554, "33003822");
+        return -EINVAL;
+    }
+    if (cmdCode == EFFECT_CMD_GET_PARAM &&
+            (*replySize < sizeof(effect_param_t) ||
+                    ((effect_param_t *)pCmdData)->psize > *replySize - sizeof(effect_param_t))) {
+        android_errorWriteLog(0x534e4554, "29251553");
         return -EINVAL;
     }
     if (cmdCode == EFFECT_CMD_GET_PARAM &&
@@ -651,12 +662,11 @@
         android_errorWriteLog(0x534e4554, "30204301");
         return -EINVAL;
     }
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   cmdCode,
-                                                   cmdSize,
-                                                   pCmdData,
-                                                   replySize,
-                                                   pReplyData);
+    status_t status = mEffectInterface->command(cmdCode,
+                                                cmdSize,
+                                                pCmdData,
+                                                replySize,
+                                                pReplyData);
     if (cmdCode != EFFECT_CMD_GET_PARAM && status == NO_ERROR) {
         uint32_t size = (replySize == NULL) ? 0 : *replySize;
         for (size_t i = 1; i < mHandles.size(); i++) {
@@ -758,6 +768,28 @@
     }
 }
 
+void AudioFlinger::EffectModule::setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    if (buffer != 0) {
+        mConfig.inputCfg.buffer.raw = buffer->audioBuffer()->raw;
+        buffer->setFrameCount(mConfig.inputCfg.buffer.frameCount);
+    } else {
+        mConfig.inputCfg.buffer.raw = NULL;
+    }
+    mInBuffer = buffer;
+    mEffectInterface->setInBuffer(buffer);
+}
+
+void AudioFlinger::EffectModule::setOutBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    if (buffer != 0) {
+        mConfig.outputCfg.buffer.raw = buffer->audioBuffer()->raw;
+        buffer->setFrameCount(mConfig.outputCfg.buffer.frameCount);
+    } else {
+        mConfig.outputCfg.buffer.raw = NULL;
+    }
+    mOutBuffer = buffer;
+    mEffectInterface->setOutBuffer(buffer);
+}
+
 status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller)
 {
     Mutex::Autolock _l(mLock);
@@ -778,12 +810,11 @@
         if (controller) {
             pVolume = volume;
         }
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              EFFECT_CMD_SET_VOLUME,
-                                              size,
-                                              volume,
-                                              &size,
-                                              pVolume);
+        status = mEffectInterface->command(EFFECT_CMD_SET_VOLUME,
+                                           size,
+                                           volume,
+                                           &size,
+                                           pVolume);
         if (controller && status == NO_ERROR && size == sizeof(volume)) {
             *left = volume[0];
             *right = volume[1];
@@ -808,12 +839,11 @@
         uint32_t size = sizeof(status_t);
         uint32_t cmd = audio_is_output_devices(device) ? EFFECT_CMD_SET_DEVICE :
                             EFFECT_CMD_SET_INPUT_DEVICE;
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              cmd,
-                                              sizeof(uint32_t),
-                                              &device,
-                                              &size,
-                                              &cmdStatus);
+        status = mEffectInterface->command(cmd,
+                                           sizeof(uint32_t),
+                                           &device,
+                                           &size,
+                                           &cmdStatus);
     }
     return status;
 }
@@ -828,12 +858,11 @@
     if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_MODE_MASK) == EFFECT_FLAG_AUDIO_MODE_IND) {
         status_t cmdStatus;
         uint32_t size = sizeof(status_t);
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              EFFECT_CMD_SET_AUDIO_MODE,
-                                              sizeof(audio_mode_t),
-                                              &mode,
-                                              &size,
-                                              &cmdStatus);
+        status = mEffectInterface->command(EFFECT_CMD_SET_AUDIO_MODE,
+                                           sizeof(audio_mode_t),
+                                           &mode,
+                                           &size,
+                                           &cmdStatus);
         if (status == NO_ERROR) {
             status = cmdStatus;
         }
@@ -850,12 +879,11 @@
     status_t status = NO_ERROR;
     if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_SOURCE_MASK) == EFFECT_FLAG_AUDIO_SOURCE_IND) {
         uint32_t size = 0;
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              EFFECT_CMD_SET_AUDIO_SOURCE,
-                                              sizeof(audio_source_t),
-                                              &source,
-                                              &size,
-                                              NULL);
+        status = mEffectInterface->command(EFFECT_CMD_SET_AUDIO_SOURCE,
+                                           sizeof(audio_source_t),
+                                           &source,
+                                           &size,
+                                           NULL);
     }
     return status;
 }
@@ -901,12 +929,11 @@
 
         cmd.isOffload = offloaded;
         cmd.ioHandle = io;
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              EFFECT_CMD_OFFLOAD,
-                                              sizeof(effect_offload_param_t),
-                                              &cmd,
-                                              &size,
-                                              &cmdStatus);
+        status = mEffectInterface->command(EFFECT_CMD_OFFLOAD,
+                                           sizeof(effect_offload_param_t),
+                                           &cmd,
+                                           &size,
+                                           &cmdStatus);
         if (status == NO_ERROR) {
             status = cmdStatus;
         }
@@ -1049,7 +1076,7 @@
 
     result.append("\t\tSession Status State Engine:\n");
     snprintf(buffer, SIZE, "\t\t%05d   %03d    %03d   %p\n",
-            mSessionId, mStatus, mState, mEffectInterface);
+            mSessionId, mStatus, mState, mEffectInterface.get());
     result.append(buffer);
 
     result.append("\t\tDescriptor:\n");
@@ -1085,7 +1112,7 @@
             mConfig.inputCfg.samplingRate,
             mConfig.inputCfg.channels,
             mConfig.inputCfg.format,
-            formatToString((audio_format_t)mConfig.inputCfg.format),
+            formatToString((audio_format_t)mConfig.inputCfg.format).c_str(),
             mConfig.inputCfg.buffer.raw);
     result.append(buffer);
 
@@ -1097,7 +1124,7 @@
             mConfig.outputCfg.samplingRate,
             mConfig.outputCfg.channels,
             mConfig.outputCfg.format,
-            formatToString((audio_format_t)mConfig.outputCfg.format));
+            formatToString((audio_format_t)mConfig.outputCfg.format).c_str());
     result.append(buffer);
 
     snprintf(buffer, SIZE, "\t\t%zu Clients:\n", mHandles.size());
@@ -1198,10 +1225,9 @@
         mEnabled = false;
     } else {
         if (thread != 0) {
-            if (thread->type() == ThreadBase::OFFLOAD) {
-                PlaybackThread *t = (PlaybackThread *)thread.get();
-                Mutex::Autolock _l(t->mLock);
-                t->broadcast_l();
+            if (thread->type() == ThreadBase::OFFLOAD || thread->type() == ThreadBase::MMAP) {
+                Mutex::Autolock _l(thread->mLock);
+                thread->broadcast_l();
             }
             if (!effect->isOffloadable()) {
                 if (thread->type() == ThreadBase::OFFLOAD) {
@@ -1243,10 +1269,9 @@
     sp<ThreadBase> thread = effect->thread().promote();
     if (thread != 0) {
         thread->checkSuspendOnEffectEnabled(effect, false, effect->sessionId());
-        if (thread->type() == ThreadBase::OFFLOAD) {
-            PlaybackThread *t = (PlaybackThread *)thread.get();
-            Mutex::Autolock _l(t->mLock);
-            t->broadcast_l();
+        if (thread->type() == ThreadBase::OFFLOAD || thread->type() == ThreadBase::MMAP) {
+            Mutex::Autolock _l(thread->mLock);
+            thread->broadcast_l();
         }
     }
 
@@ -1501,7 +1526,7 @@
 AudioFlinger::EffectChain::EffectChain(ThreadBase *thread,
                                         audio_session_t sessionId)
     : mThread(thread), mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), mTailBufferCount(0),
-      mOwnInBuffer(false), mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX),
+      mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX),
       mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX)
 {
     mStrategy = AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC);
@@ -1514,9 +1539,6 @@
 
 AudioFlinger::EffectChain::~EffectChain()
 {
-    if (mOwnInBuffer) {
-        delete mInBuffer;
-    }
 }
 
 // getEffectFromDesc_l() must be called with ThreadBase::mLock held
@@ -1573,15 +1595,19 @@
 }
 
 // Must be called with EffectChain::mLock locked
-void AudioFlinger::EffectChain::clearInputBuffer_l(sp<ThreadBase> thread)
+void AudioFlinger::EffectChain::clearInputBuffer_l(const sp<ThreadBase>& thread)
 {
+    if (mInBuffer == NULL) {
+        return;
+    }
     // TODO: This will change in the future, depending on multichannel
     // and sample format changes for effects.
     // Currently effects processing is only available for stereo, AUDIO_FORMAT_PCM_16_BIT
     // (4 bytes frame size)
     const size_t frameSize =
             audio_bytes_per_sample(AUDIO_FORMAT_PCM_16_BIT) * min(FCC_2, thread->channelCount());
-    memset(mInBuffer, 0, thread->frameCount() * frameSize);
+    memset(mInBuffer->audioBuffer()->raw, 0, thread->frameCount() * frameSize);
+    mInBuffer->commit();
 }
 
 // Must be called with EffectChain::mLock locked
@@ -1597,7 +1623,8 @@
     // never process effects when:
     // - on an OFFLOAD thread
     // - no more tracks are on the session and the effect tail has been rendered
-    bool doProcess = (thread->type() != ThreadBase::OFFLOAD);
+    bool doProcess = (thread->type() != ThreadBase::OFFLOAD)
+                  && (thread->type() != ThreadBase::MMAP);
     if (!isGlobalSession) {
         bool tracksOnSession = (trackCnt() != 0);
 
@@ -1619,9 +1646,20 @@
 
     size_t size = mEffects.size();
     if (doProcess) {
+        // Only the input and output buffers of the chain can be external,
+        // and 'update' / 'commit' do nothing for allocated buffers, thus
+        // it's not needed to consider any other buffers here.
+        mInBuffer->update();
+        if (mInBuffer->audioBuffer()->raw != mOutBuffer->audioBuffer()->raw) {
+            mOutBuffer->update();
+        }
         for (size_t i = 0; i < size; i++) {
             mEffects[i]->process();
         }
+        mInBuffer->commit();
+        if (mInBuffer->audioBuffer()->raw != mOutBuffer->audioBuffer()->raw) {
+            mOutBuffer->commit();
+        }
     }
     bool doResetVolume = false;
     for (size_t i = 0; i < size; i++) {
@@ -1681,9 +1719,11 @@
         // accumulation stage. Saturation is done in EffectModule::process() before
         // calling the process in effect engine
         size_t numSamples = thread->frameCount();
-        int32_t *buffer = new int32_t[numSamples];
-        memset(buffer, 0, numSamples * sizeof(int32_t));
-        effect->setInBuffer((int16_t *)buffer);
+        sp<EffectBufferHalInterface> halBuffer;
+        status_t result = EffectBufferHalInterface::allocate(
+                numSamples * sizeof(int32_t), &halBuffer);
+        if (result != OK) return result;
+        effect->setInBuffer(halBuffer);
         // auxiliary effects output samples to chain input buffer for further processing
         // by insert effects
         effect->setOutBuffer(mInBuffer);
@@ -1794,9 +1834,7 @@
                 mEffects[i]->release_l();
             }
 
-            if (type == EFFECT_FLAG_TYPE_AUXILIARY) {
-                delete[] effect->inBuffer();
-            } else {
+            if (type != EFFECT_FLAG_TYPE_AUXILIARY) {
                 if (i == size - 1 && i != 0) {
                     mEffects[i - 1]->setOutBuffer(mOutBuffer);
                     mEffects[i - 1]->configure();
@@ -1922,6 +1960,19 @@
     }
 }
 
+static void dumpInOutBuffer(
+        char *dump, size_t dumpSize, bool isInput, EffectBufferHalInterface *buffer) {
+    if (buffer == nullptr) {
+        snprintf(dump, dumpSize, "%p", buffer);
+    } else if (buffer->externalData() != nullptr) {
+        snprintf(dump, dumpSize, "%p -> %p",
+                isInput ? buffer->externalData() : buffer->audioBuffer()->raw,
+                isInput ? buffer->audioBuffer()->raw : buffer->externalData());
+    } else {
+        snprintf(dump, dumpSize, "%p", buffer->audioBuffer()->raw);
+    }
+}
+
 void AudioFlinger::EffectChain::dump(int fd, const Vector<String16>& args)
 {
     const size_t SIZE = 256;
@@ -1939,11 +1990,14 @@
             result.append("\tCould not lock mutex:\n");
         }
 
-        result.append("\tIn buffer   Out buffer   Active tracks:\n");
-        snprintf(buffer, SIZE, "\t%p  %p   %d\n",
-                mInBuffer,
-                mOutBuffer,
-                mActiveTrackCnt);
+        char inBufferStr[64], outBufferStr[64];
+        dumpInOutBuffer(inBufferStr, sizeof(inBufferStr), true, mInBuffer.get());
+        dumpInOutBuffer(outBufferStr, sizeof(outBufferStr), false, mOutBuffer.get());
+        snprintf(buffer, SIZE, "\t%-*s%-*s   Active tracks:\n",
+                (int)strlen(inBufferStr), "In buffer    ",
+                (int)strlen(outBufferStr), "Out buffer      ");
+        result.append(buffer);
+        snprintf(buffer, SIZE, "\t%s   %s   %d\n", inBufferStr, outBufferStr, mActiveTrackCnt);
         result.append(buffer);
         write(fd, result.string(), result.size());
 
diff --git a/services/audioflinger/Effects.h b/services/audioflinger/Effects.h
index 864d508..0755c52 100644
--- a/services/audioflinger/Effects.h
+++ b/services/audioflinger/Effects.h
@@ -25,10 +25,11 @@
 // state changes or resource modifications. Always respect the following order
 // if multiple mutexes must be acquired to avoid cross deadlock:
 // AudioFlinger -> ThreadBase -> EffectChain -> EffectModule
+// AudioHandle -> ThreadBase -> EffectChain -> EffectModule
 // In addition, methods that lock the AudioPolicyService mutex (getOutputForEffect(),
-// startOutput()...) should never be called with AudioFlinger or Threadbase mutex locked
-// to avoid cross deadlock with other clients calling AudioPolicyService methods that in turn
-// call AudioFlinger thus locking the same mutexes in the reverse order.
+// startOutput(), getInputForAttr(), releaseInput()...) should never be called with AudioFlinger or
+// Threadbase mutex locked to avoid cross deadlock with other clients calling AudioPolicyService
+// methods that in turn call AudioFlinger thus locking the same mutexes in the reverse order.
 
 // The EffectModule class is a wrapper object controlling the effect engine implementation
 // in the effect library. It prevents concurrent calls to process() and command() functions
@@ -85,10 +86,14 @@
     bool isEnabled() const;
     bool isProcessEnabled() const;
 
-    void        setInBuffer(int16_t *buffer) { mConfig.inputCfg.buffer.s16 = buffer; }
-    int16_t     *inBuffer() { return mConfig.inputCfg.buffer.s16; }
-    void        setOutBuffer(int16_t *buffer) { mConfig.outputCfg.buffer.s16 = buffer; }
-    int16_t     *outBuffer() { return mConfig.outputCfg.buffer.s16; }
+    void        setInBuffer(const sp<EffectBufferHalInterface>& buffer);
+    int16_t     *inBuffer() const {
+        return mInBuffer != 0 ? reinterpret_cast<int16_t*>(mInBuffer->ptr()) : NULL;
+    }
+    void        setOutBuffer(const sp<EffectBufferHalInterface>& buffer);
+    int16_t     *outBuffer() const {
+        return mOutBuffer != 0 ? reinterpret_cast<int16_t*>(mOutBuffer->ptr()) : NULL;
+    }
     void        setChain(const wp<EffectChain>& chain) { mChain = chain; }
     void        setThread(const wp<ThreadBase>& thread) { mThread = thread; }
     const wp<ThreadBase>& thread() { return mThread; }
@@ -151,7 +156,9 @@
     const audio_session_t mSessionId; // audio session ID
     const effect_descriptor_t mDescriptor;// effect descriptor received from effect engine
     effect_config_t     mConfig;    // input and output audio configuration
-    effect_handle_t  mEffectInterface; // Effect module C API
+    sp<EffectHalInterface> mEffectInterface; // Effect module HAL
+    sp<EffectBufferHalInterface> mInBuffer;  // Buffers for interacting with HAL
+    sp<EffectBufferHalInterface> mOutBuffer;
     status_t            mStatus;    // initialization status
     effect_state        mState;     // current activation state
     Vector<EffectHandle *> mHandles;    // list of client handles
@@ -300,18 +307,17 @@
     void setMode_l(audio_mode_t mode);
     void setAudioSource_l(audio_source_t source);
 
-    void setInBuffer(int16_t *buffer, bool ownsBuffer = false) {
+    void setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
         mInBuffer = buffer;
-        mOwnInBuffer = ownsBuffer;
     }
     int16_t *inBuffer() const {
-        return mInBuffer;
+        return mInBuffer != 0 ? reinterpret_cast<int16_t*>(mInBuffer->ptr()) : NULL;
     }
-    void setOutBuffer(int16_t *buffer) {
+    void setOutBuffer(const sp<EffectBufferHalInterface>& buffer) {
         mOutBuffer = buffer;
     }
     int16_t *outBuffer() const {
-        return mOutBuffer;
+        return mOutBuffer != 0 ? reinterpret_cast<int16_t*>(mOutBuffer->ptr()) : NULL;
     }
 
     void incTrackCnt() { android_atomic_inc(&mTrackCnt); }
@@ -385,7 +391,7 @@
     // types or implementations from the suspend/restore mechanism.
     bool isEffectEligibleForSuspend(const effect_descriptor_t& desc);
 
-    void clearInputBuffer_l(sp<ThreadBase> thread);
+    void clearInputBuffer_l(const sp<ThreadBase>& thread);
 
     void setThread(const sp<ThreadBase>& thread);
 
@@ -393,8 +399,8 @@
     mutable  Mutex mLock;        // mutex protecting effect list
              Vector< sp<EffectModule> > mEffects; // list of effect modules
              audio_session_t mSessionId; // audio session ID
-             int16_t *mInBuffer;         // chain input buffer
-             int16_t *mOutBuffer;        // chain output buffer
+             sp<EffectBufferHalInterface> mInBuffer;  // chain input buffer
+             sp<EffectBufferHalInterface> mOutBuffer; // chain output buffer
 
     // 'volatile' here means these are accessed with atomic operations instead of mutex
     volatile int32_t mActiveTrackCnt;    // number of active tracks connected
@@ -402,7 +408,6 @@
 
              int32_t mTailBufferCount;   // current effect tail buffer count
              int32_t mMaxTailBuffers;    // maximum effect tail buffers
-             bool mOwnInBuffer;          // true if the chain owns its input buffer
              int mVolumeCtrlIdx;         // index of insert effect having control over volume
              uint32_t mLeftVolume;       // previous volume on left channel
              uint32_t mRightVolume;      // previous volume on right channel
diff --git a/services/audioflinger/FastMixer.cpp b/services/audioflinger/FastMixer.cpp
index 93f7ce5..103e7f8 100644
--- a/services/audioflinger/FastMixer.cpp
+++ b/services/audioflinger/FastMixer.cpp
@@ -37,9 +37,9 @@
 #include <cpustats/ThreadCpuUsage.h>
 #endif
 #endif
-#include <audio_utils/conversion.h>
+#include <audio_utils/mono_blend.h>
 #include <audio_utils/format.h>
-#include "AudioMixer.h"
+#include <media/AudioMixer.h>
 #include "FastMixer.h"
 
 namespace android {
diff --git a/services/audioflinger/FastMixerDumpState.h b/services/audioflinger/FastMixerDumpState.h
index 301c5b1..8ef31d1 100644
--- a/services/audioflinger/FastMixerDumpState.h
+++ b/services/audioflinger/FastMixerDumpState.h
@@ -35,7 +35,7 @@
 // This packed representation is used to keep the information atomic.
 union FastTrackUnderruns {
     FastTrackUnderruns() { mAtomic = 0;
-            COMPILE_TIME_ASSERT_FUNCTION_SCOPE(sizeof(FastTrackUnderruns) == sizeof(uint32_t)); }
+            static_assert(sizeof(FastTrackUnderruns) == sizeof(uint32_t), "FastTrackUnderrun"); }
     FastTrackUnderruns(const FastTrackUnderruns& copyFrom) : mAtomic(copyFrom.mAtomic) { }
     FastTrackUnderruns& operator=(const FastTrackUnderruns& rhs)
             { if (this != &rhs) mAtomic = rhs.mAtomic; return *this; }
diff --git a/services/audioflinger/FastMixerState.cpp b/services/audioflinger/FastMixerState.cpp
index ad471fb..36d8eef 100644
--- a/services/audioflinger/FastMixerState.cpp
+++ b/services/audioflinger/FastMixerState.cpp
@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+#define LOG_TAG "FastMixerState"
+//#define LOG_NDEBUG 0
+
 #include <cutils/properties.h>
 #include "FastMixerState.h"
 
diff --git a/services/audioflinger/FastThread.cpp b/services/audioflinger/FastThread.cpp
index dca7bf9..cf9fce3 100644
--- a/services/audioflinger/FastThread.cpp
+++ b/services/audioflinger/FastThread.cpp
@@ -22,6 +22,7 @@
 #include "Configuration.h"
 #include <linux/futex.h>
 #include <sys/syscall.h>
+#include <cutils/atomic.h>
 #include <utils/Log.h>
 #include <utils/Trace.h>
 #include "FastThread.h"
@@ -169,7 +170,7 @@
                 }
                 int policy = sched_getscheduler(0) & ~SCHED_RESET_ON_FORK;
                 if (!(policy == SCHED_FIFO || policy == SCHED_RR)) {
-                    ALOGE("did not receive expected priority boost");
+                    ALOGE("did not receive expected priority boost on time");
                 }
                 // This may be overly conservative; there could be times that the normal mixer
                 // requests such a brief cold idle that it doesn't require resetting this flag.
diff --git a/services/audioflinger/FastThreadDumpState.cpp b/services/audioflinger/FastThreadDumpState.cpp
index 9df5c4c..964a725 100644
--- a/services/audioflinger/FastThreadDumpState.cpp
+++ b/services/audioflinger/FastThreadDumpState.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <audio_utils/roundup.h>
 #include "FastThreadDumpState.h"
 
 namespace android {
diff --git a/services/audioflinger/LinearMap.h b/services/audioflinger/LinearMap.h
deleted file mode 100644
index fca14dd..0000000
--- a/services/audioflinger/LinearMap.h
+++ /dev/null
@@ -1,366 +0,0 @@
-/*
- * Copyright 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_LINEAR_MAP_H
-#define ANDROID_LINEAR_MAP_H
-
-#include <stdint.h>
-
-namespace android {
-
-/*
-A general purpose lookup utility that defines a mapping between X and Y as a
-continuous set of line segments with shared (x, y) end-points.
-The (x, y) points must be added in order, monotonically increasing in both x and y;
-a log warning is emitted if this does not happen (See general usage notes below).
-
-A limited history of (x, y) points is kept for space reasons (See general usage notes).
-
-In AudioFlinger, we use the LinearMap to associate track frames to
-sink frames.  When we want to obtain a client track timestamp, we first
-get a timestamp from the sink.  The sink timestamp's position (mPosition)
-corresponds to the sink frames written. We use LinearMap to figure out which track frame
-the sink frame corresponds to. This allows us to substitute a track frame for the
-the sink frame (keeping the mTime identical) and return that timestamp back to the client.
-
-The method findX() can be used to retrieve an x value from a given y value and is
-used for timestamps, similarly for findY() which is provided for completeness.
-
-We update the (track frame, sink frame) points in the LinearMap each time we write data
-to the sink by the AudioFlinger PlaybackThread (MixerThread).
-
-
-AudioFlinger Timestamp Notes:
-
-1) Example: Obtaining a track timestamp during playback.  In this case, the LinearMap
-looks something like this:
-
-Track Frame    Sink Frame
-(track start)
-0              50000  (track starts here, the sink may already be running)
-1000           51000
-2000           52000
-
-When we request a track timestamp, we call the sink getTimestamp() and get for example
-mPosition = 51020.  Using the LinearMap, we find we have played to track frame 1020.
-We substitute the sink mPosition of 51020 with the track position 1020,
-and return that timestamp to the app.
-
-2) Example: Obtaining a track timestamp duing pause. In this case, the LinearMap
-looks something like this:
-
-Track Frame    Sink Frame
-... (some time has gone by)
-15000          30000
-16000          31000
-17000          32000
-(pause here)
-(suppose we call sink getTimestamp() here and get sink mPosition = 31100; that means
-        we have played to track frame 16100.  The track timestamp mPosition will
-        continue to advance until the sink timestamp returns a value of mPosition
-        greater than 32000, corresponding to track frame 17000 when the pause was called).
-17000          33000
-17000          34000
-...
-
-3) If the track underruns, it appears as if a pause was called on that track.
-
-4) If there is an underrun in the HAL layer, then it may be possible that
-the sink getTimestamp() will return a value greater than the number of frames written
-(it should always be less). This should be rare, if not impossible by some
-HAL implementations of the sink getTimestamp. In that case, timing is lost
-and we will return the most recent track frame written.
-
-5) When called with no points in the map, findX() returns the start value (default 0).
-This is consistent with starting after a stop() or flush().
-
-6) Resuming after Track standby will be similar to coming out of pause, as the HAL ensures
-framesWritten() and getTimestamp() are contiguous for non-offloaded/direct tracks.
-
-7) LinearMap works for different speeds and sample rates as it uses
-linear interpolation. Since AudioFlinger only updates speed and sample rate
-exactly at the sample points pushed into the LinearMap, the returned values
-from findX() and findY() are accurate regardless of how many speed or sample
-rate changes are made, so long as the coordinate looked up is within the
-sample history.
-
-General usage notes:
-
-1) In order for the LinearMap to work reliably, you cannot look backwards more
-than the size of its circular buffer history, set upon creation (typically 16).
-If you look back further, the position is extrapolated either from a passed in
-extrapolation parameter or from the oldest line segment.
-
-2) Points must monotonically increase in x and y. The increment between adjacent
-points cannot be greater than signed 32 bits. Wrap in the x, y coordinates are supported,
-since we use differences in our computation.
-
-3) If the frame data is discontinuous (due to stop or flush) call reset() to clear
-the sample counter.
-
-4) If (x, y) are not strictly monotonic increasing, i.e. (x2 > x1) and (y2 > y1),
-then one or both of the inverses y = f(x) or x = g(y) may have multiple solutions.
-In that case, the most recent solution is returned by findX() or findY().  We
-do not warn if (x2 == x1) or (y2 == y1), but we do logcat warn if (x2 < x1) or
-(y2 < y1).
-
-5) Due to rounding it is possible x != findX(findY(x)) or y != findY(findX(y))
-even when the inverse exists. Nevertheless, the values should be close.
-
-*/
-
-template <typename T>
-class LinearMap {
-public:
-    // This enumeration describes the reliability of the findX() or findY() estimation
-    // in descending order.
-    enum FindMethod {
-        FIND_METHOD_INTERPOLATION,           // High reliability (errors due to rounding)
-        FIND_METHOD_FORWARD_EXTRAPOLATION,   // Reliability based on no future speed changes
-        FIND_METHOD_BACKWARD_EXTRAPOLATION,  // Reliability based on prior estimated speed
-        FIND_METHOD_START_VALUE,             // No samples in history, using start value
-    };
-
-    LinearMap(size_t size)
-            : mSize(size),
-              mPos(0), // a circular buffer, so could start anywhere. the first sample is at 1.
-              mSamples(0),
-              // mStepValid(false),      // only valid if mSamples > 1
-              // mExtrapolateTail(false), // only valid if mSamples > 0
-              mX(new T[size]),
-              mY(new T[size]) { }
-
-    ~LinearMap() {
-        delete[] mX;
-        delete[] mY;
-    }
-
-    // Add a new sample point to the linear map.
-    //
-    // The difference between the new sample and the previous sample
-    // in the x or y coordinate must be less than INT32_MAX for purposes
-    // of the linear interpolation or extrapolation.
-    //
-    // The value should be monotonic increasing (e.g. diff >= 0);
-    // logcat warnings are issued if they are not.
-    __attribute__((no_sanitize("integer")))
-    void push(T x, T y) {
-        // Assumption: we assume x, y are monotonic increasing values,
-        // which (can) wrap in precision no less than 32 bits and have
-        // "step" or differences between adjacent points less than 32 bits.
-
-        if (mSamples > 0) {
-            const bool lastStepValid = mStepValid;
-            int32_t xdiff;
-            int32_t ydiff;
-            // check difference assumption here
-            mStepValid = checkedDiff(&xdiff, x, mX[mPos], "x")
-                    & /* bitwise AND to always warn for ydiff, though logical AND is also OK */
-                    checkedDiff(&ydiff, y, mY[mPos], "y");
-
-            // Optimization: do not add a new sample if the line segment would
-            // simply extend the previous line segment.  This extends the useful
-            // history by removing redundant points.
-            if (mSamples > 1 && mStepValid && lastStepValid) {
-                const size_t prev = previousPosition();
-                const int32_t xdiff2 = x - mX[prev];
-                const int32_t ydiff2 = y - mY[prev];
-
-                // if both current step and previous step are valid (non-negative and
-                // less than INT32_MAX for precision greater than 4 bytes)
-                // then the sum of the two steps is valid when the
-                // int32_t difference is non-negative.
-                if (xdiff2 >= 0 && ydiff2 >= 0
-                        && (int64_t)xdiff2 * ydiff == (int64_t)ydiff2 * xdiff) {
-                    // ALOGD("reusing sample! (%u, %u) sample depth %zd", x, y, mSamples);
-                    mX[mPos] = x;
-                    mY[mPos] = y;
-                    return;
-                }
-            }
-        }
-        if (++mPos >= mSize) {
-            mPos = 0;
-        }
-        if (mSamples < mSize) {
-            mExtrapolateTail = false;
-            ++mSamples;
-        } else {
-            // we enable extrapolation beyond the oldest sample
-            // if the sample buffers are completely full and we
-            // no longer know the full history.
-            mExtrapolateTail = true;
-        }
-        mX[mPos] = x;
-        mY[mPos] = y;
-    }
-
-    // clear all samples from the circular array
-    void reset() {
-        // no need to reset mPos, we use a circular buffer.
-        // computed values such as mStepValid are set after a subsequent push().
-        mSamples = 0;
-    }
-
-    // returns true if LinearMap contains at least one sample.
-    bool hasData() const {
-        return mSamples != 0;
-    }
-
-    // find the corresponding X point from a Y point.
-    // See findU for details.
-    __attribute__((no_sanitize("integer")))
-    T findX(T y, FindMethod *method = NULL, double extrapolation = 0.0, T startValue = 0) const {
-        return findU(y, mX, mY, method, extrapolation, startValue);
-    }
-
-    // find the corresponding Y point from a X point.
-    // See findU for details.
-    __attribute__((no_sanitize("integer")))
-    T findY(T x, FindMethod *method = NULL, double extrapolation = 0.0, T startValue = 0) const {
-        return findU(x, mY, mX, method, extrapolation, startValue);
-    }
-
-protected:
-
-    // returns false if the diff is out of int32_t bounds or negative.
-    __attribute__((no_sanitize("integer")))
-    static inline bool checkedDiff(int32_t *diff, T x2, T x1, const char *coord) {
-        if (sizeof(T) >= 8) {
-            const int64_t diff64 = x2 - x1;
-            *diff = (int32_t)diff64;  // intentionally lose precision
-            if (diff64 > INT32_MAX) {
-                ALOGW("LinearMap: %s overflow diff(%lld) from %llu - %llu exceeds INT32_MAX",
-                        coord, (long long)diff64,
-                        (unsigned long long)x2, (unsigned long long)x1);
-                return false;
-            } else if (diff64 < 0) {
-                ALOGW("LinearMap: %s negative diff(%lld) from %llu - %llu",
-                        coord, (long long)diff64,
-                        (unsigned long long)x2, (unsigned long long)x1);
-                return false;
-            }
-            return true;
-        }
-        // for 32 bit integers we cannot detect overflow (it
-        // shows up as a negative difference).
-        *diff = x2 - x1;
-        if (*diff < 0) {
-            ALOGW("LinearMap: %s negative diff(%d) from %u - %u",
-                    coord, *diff, (unsigned)x2, (unsigned)x1);
-            return false;
-        }
-        return true;
-    }
-
-    // Returns the previous position in the mSamples array
-    // going backwards back steps.
-    //
-    // Parameters:
-    //   back: number of backward steps, cannot be less than zero or greater than mSamples.
-    //
-    __attribute__((no_sanitize("integer")))
-    size_t previousPosition(ssize_t back = 1) const {
-        LOG_ALWAYS_FATAL_IF(back < 0 || (size_t)back > mSamples, "Invalid back(%zd)", back);
-        ssize_t position = mPos - back;
-        if (position < 0) position += mSize;
-        return (size_t)position;
-    }
-
-    // A generic implementation of finding the "other coordinate" with coordinates
-    // (u, v) = (x, y) or (u, v) = (y, x).
-    //
-    // Parameters:
-    //   uArray: the u axis samples.
-    //   vArray: the v axis samples.
-    //   method: [out] how the returned value was computed.
-    //   extrapolation: the slope used when extrapolating from the
-    //     first sample value or the last sample value in the history.
-    //     If mExtrapolateTail is set, the slope of the last line segment
-    //     is used if the extrapolation parameter is zero to continue the tail of history.
-    //     At this time, we do not use a different value for forward extrapolation from the
-    //     head of history from backward extrapolation from the tail of history.
-    //     TODO: back extrapolation value could be stored along with mX, mY in history.
-    //   startValue: used only when there are no samples in history. One can detect
-    //     whether there are samples in history by the method hasData().
-    //
-    __attribute__((no_sanitize("integer")))
-    T findU(T v, T *uArray, T *vArray, FindMethod *method,
-            double extrapolation, T startValue) const {
-        if (mSamples == 0) {
-            if (method != NULL) {
-                *method = FIND_METHOD_START_VALUE;
-            }
-            return startValue;  // nothing yet
-        }
-        ssize_t previous = 0;
-        int32_t diff = 0;
-        for (ssize_t i = 0; i < (ssize_t)mSamples; ++i) {
-            size_t current = previousPosition(i);
-
-            // Assumption: even though the type "T" may have precision greater
-            // than 32 bits, the difference between adjacent points is limited to 32 bits.
-            diff = v - vArray[current];
-            if (diff >= 0 ||
-                    (i == (ssize_t)mSamples - 1 && mExtrapolateTail && extrapolation == 0.0)) {
-                // ALOGD("depth = %zd out of %zd", i, limit);
-                if (i == 0) {
-                    if (method != NULL) {
-                        *method = FIND_METHOD_FORWARD_EXTRAPOLATION;
-                    }
-                    return uArray[current] + diff * extrapolation;
-                }
-                // interpolate / extrapolate: For this computation, we
-                // must use differentials here otherwise we have inconsistent
-                // values on modulo wrap. previous is always valid here since
-                // i > 0.  we also perform rounding with the assumption
-                // that uStep, vStep, and diff are non-negative.
-                int32_t uStep = uArray[previous] - uArray[current]; // non-negative
-                int32_t vStep = vArray[previous] - vArray[current]; // positive
-                T u = uStep <= 0 || vStep <= 0 ?  // we do not permit negative ustep or vstep
-                        uArray[current]
-                      : ((int64_t)diff * uStep + (vStep >> 1)) / vStep + uArray[current];
-                // ALOGD("u:%u  diff:%d  uStep:%d  vStep:%d  u_current:%d",
-                //         u, diff, uStep, vStep, uArray[current]);
-                if (method != NULL) {
-                    *method = (diff >= 0) ?
-                            FIND_METHOD_INTERPOLATION : FIND_METHOD_BACKWARD_EXTRAPOLATION;
-                }
-                return u;
-            }
-            previous = current;
-        }
-        // previous is always valid here.
-        if (method != NULL) {
-            *method = FIND_METHOD_BACKWARD_EXTRAPOLATION;
-        }
-        return uArray[previous] + diff * extrapolation;
-    }
-
-private:
-    const size_t    mSize;      // Size of mX and mY arrays (history).
-    size_t          mPos;       // Index in mX and mY of last pushed data;
-                                // (incremented after push) [0, mSize - 1].
-    size_t          mSamples;   // Number of valid samples in the array [0, mSize].
-    bool            mStepValid; // Last sample step was valid (non-negative)
-    bool            mExtrapolateTail; // extrapolate tail using oldest line segment
-    T * const       mX;         // History of X values as a circular array.
-    T * const       mY;         // History of Y values as a circular array.
-};
-
-} // namespace android
-
-#endif // ANDROID_LINEAR_MAP_H
diff --git a/services/audioflinger/MmapTracks.h b/services/audioflinger/MmapTracks.h
new file mode 100644
index 0000000..e4fe8ac
--- /dev/null
+++ b/services/audioflinger/MmapTracks.h
@@ -0,0 +1,60 @@
+/*
+**
+** Copyright 2017, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#ifndef INCLUDING_FROM_AUDIOFLINGER_H
+    #error This header file should only be included from AudioFlinger.h
+#endif
+
+// playback track
+class MmapTrack : public TrackBase {
+public:
+                MmapTrack(ThreadBase *thread,
+                            uint32_t sampleRate,
+                            audio_format_t format,
+                            audio_channel_mask_t channelMask,
+                            audio_session_t sessionId,
+                            uid_t uid,
+                            audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE);
+    virtual             ~MmapTrack();
+
+                        // TrackBase virtual
+    virtual status_t    initCheck() const;
+    virtual status_t    start(AudioSystem::sync_event_t event,
+                              audio_session_t triggerSession);
+    virtual void        stop();
+    virtual bool        isFastTrack() const { return false; }
+
+     static void        appendDumpHeader(String8& result);
+            void        dump(char* buffer, size_t size);
+
+protected:
+    friend class MmapThread;
+
+                MmapTrack(const MmapTrack&);
+                MmapTrack& operator = (const MmapTrack&);
+
+    // AudioBufferProvider interface
+    virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer);
+    // releaseBuffer() not overridden
+
+    // ExtendedAudioBufferProvider interface
+    virtual size_t framesReady() const;
+    virtual int64_t framesReleased() const;
+    virtual void onTimestamp(const ExtendedTimestamp &timestamp);
+
+};  // end of Track
+
diff --git a/services/audioflinger/PatchPanel.cpp b/services/audioflinger/PatchPanel.cpp
index bee17fd..d7c0728 100644
--- a/services/audioflinger/PatchPanel.cpp
+++ b/services/audioflinger/PatchPanel.cpp
@@ -202,9 +202,9 @@
                     if (hwModule != AUDIO_MODULE_HANDLE_NONE) {
                         ssize_t index = audioflinger->mAudioHwDevs.indexOfKey(hwModule);
                         if (index >= 0) {
-                            audio_hw_device_t *hwDevice =
+                            sp<DeviceHalInterface> hwDevice =
                                     audioflinger->mAudioHwDevs.valueAt(index)->hwDevice();
-                            hwDevice->release_audio_patch(hwDevice, halHandle);
+                            hwDevice->releaseAudioPatch(halHandle);
                         }
                     }
                 }
@@ -247,11 +247,11 @@
             // - special patch request with 2 sources (reuse one existing output mix) OR
             // - Device to device AND
             //    - source HW module != destination HW module OR
-            //    - audio HAL version < 3.0
+            //    - audio HAL does not support audio patches creation
             if ((patch->num_sources == 2) ||
                 ((patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) &&
                  ((patch->sinks[0].ext.device.hw_module != srcModule) ||
-                  (audioHwDevice->version() < AUDIO_DEVICE_API_VERSION_3_0)))) {
+                  !audioHwDevice->supportsAudioPatches()))) {
                 if (patch->num_sources == 2) {
                     if (patch->sources[1].type != AUDIO_PORT_TYPE_MIX ||
                             (patch->num_sinks != 0 && patch->sinks[0].ext.device.hw_module !=
@@ -274,13 +274,14 @@
                     audio_devices_t device = patch->sinks[0].ext.device.type;
                     String8 address = String8(patch->sinks[0].ext.device.address);
                     audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
-                    newPatch->mPlaybackThread = audioflinger->openOutput_l(
-                                                             patch->sinks[0].ext.device.hw_module,
-                                                             &output,
-                                                             &config,
-                                                             device,
-                                                             address,
-                                                             AUDIO_OUTPUT_FLAG_NONE);
+                    sp<ThreadBase> thread = audioflinger->openOutput_l(
+                                                            patch->sinks[0].ext.device.hw_module,
+                                                            &output,
+                                                            &config,
+                                                            device,
+                                                            address,
+                                                            AUDIO_OUTPUT_FLAG_NONE);
+                    newPatch->mPlaybackThread = (PlaybackThread *)thread.get();
                     ALOGV("audioflinger->openOutput_l() returned %p",
                                           newPatch->mPlaybackThread.get());
                     if (newPatch->mPlaybackThread == 0) {
@@ -310,13 +311,14 @@
                     config.format = newPatch->mPlaybackThread->format();
                 }
                 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE;
-                newPatch->mRecordThread = audioflinger->openInput_l(srcModule,
+                sp<ThreadBase> thread = audioflinger->openInput_l(srcModule,
                                                                     &input,
                                                                     &config,
                                                                     device,
                                                                     address,
                                                                     AUDIO_SOURCE_MIC,
                                                                     AUDIO_INPUT_FLAG_NONE);
+                newPatch->mRecordThread = (RecordThread *)thread.get();
                 ALOGV("audioflinger->openInput_l() returned %p inChannelMask %08x",
                       newPatch->mRecordThread.get(), config.channel_mask);
                 if (newPatch->mRecordThread == 0) {
@@ -332,25 +334,23 @@
                     sp<ThreadBase> thread = audioflinger->checkRecordThread_l(
                                                               patch->sinks[0].ext.mix.handle);
                     if (thread == 0) {
-                        ALOGW("createAudioPatch() bad capture I/O handle %d",
-                                                              patch->sinks[0].ext.mix.handle);
-                        status = BAD_VALUE;
-                        goto exit;
+                        thread = audioflinger->checkMmapThread_l(patch->sinks[0].ext.mix.handle);
+                        if (thread == 0) {
+                            ALOGW("createAudioPatch() bad capture I/O handle %d",
+                                                                  patch->sinks[0].ext.mix.handle);
+                            status = BAD_VALUE;
+                            goto exit;
+                        }
                     }
                     status = thread->sendCreateAudioPatchConfigEvent(patch, &halHandle);
                 } else {
-                    if (audioHwDevice->version() < AUDIO_DEVICE_API_VERSION_3_0) {
-                        status = INVALID_OPERATION;
-                        goto exit;
-                    }
-
-                    audio_hw_device_t *hwDevice = audioHwDevice->hwDevice();
-                    status = hwDevice->create_audio_patch(hwDevice,
-                                                           patch->num_sources,
-                                                           patch->sources,
-                                                           patch->num_sinks,
-                                                           patch->sinks,
-                                                           &halHandle);
+                    sp<DeviceHalInterface> hwDevice = audioHwDevice->hwDevice();
+                    status = hwDevice->createAudioPatch(patch->num_sources,
+                                                        patch->sources,
+                                                        patch->num_sinks,
+                                                        patch->sinks,
+                                                        &halHandle);
+                    if (status == INVALID_OPERATION) goto exit;
                 }
             }
         } break;
@@ -381,14 +381,17 @@
             sp<ThreadBase> thread =
                             audioflinger->checkPlaybackThread_l(patch->sources[0].ext.mix.handle);
             if (thread == 0) {
-                ALOGW("createAudioPatch() bad playback I/O handle %d",
-                          patch->sources[0].ext.mix.handle);
-                status = BAD_VALUE;
-                goto exit;
+                thread = audioflinger->checkMmapThread_l(patch->sources[0].ext.mix.handle);
+                if (thread == 0) {
+                    ALOGW("createAudioPatch() bad playback I/O handle %d",
+                              patch->sources[0].ext.mix.handle);
+                    status = BAD_VALUE;
+                    goto exit;
+                }
             }
             if (thread == audioflinger->primaryPlaybackThread_l()) {
                 AudioParameter param = AudioParameter();
-                param.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), (int)type);
+                param.addInt(String8(AudioParameter::keyRouting), (int)type);
 
                 audioflinger->broacastParametersToRecordThreads_l(param.toString());
             }
@@ -611,20 +614,19 @@
                 sp<ThreadBase> thread = audioflinger->checkRecordThread_l(
                                                                 patch->sinks[0].ext.mix.handle);
                 if (thread == 0) {
-                    ALOGW("releaseAudioPatch() bad capture I/O handle %d",
-                                                              patch->sinks[0].ext.mix.handle);
-                    status = BAD_VALUE;
-                    break;
+                    thread = audioflinger->checkMmapThread_l(patch->sinks[0].ext.mix.handle);
+                    if (thread == 0) {
+                        ALOGW("releaseAudioPatch() bad capture I/O handle %d",
+                                                                  patch->sinks[0].ext.mix.handle);
+                        status = BAD_VALUE;
+                        break;
+                    }
                 }
                 status = thread->sendReleaseAudioPatchConfigEvent(removedPatch->mHalHandle);
             } else {
                 AudioHwDevice *audioHwDevice = audioflinger->mAudioHwDevs.valueAt(index);
-                if (audioHwDevice->version() < AUDIO_DEVICE_API_VERSION_3_0) {
-                    status = INVALID_OPERATION;
-                    break;
-                }
-                audio_hw_device_t *hwDevice = audioHwDevice->hwDevice();
-                status = hwDevice->release_audio_patch(hwDevice, removedPatch->mHalHandle);
+                sp<DeviceHalInterface> hwDevice = audioHwDevice->hwDevice();
+                status = hwDevice->releaseAudioPatch(removedPatch->mHalHandle);
             }
         } break;
         case AUDIO_PORT_TYPE_MIX: {
@@ -638,10 +640,13 @@
             sp<ThreadBase> thread =
                             audioflinger->checkPlaybackThread_l(patch->sources[0].ext.mix.handle);
             if (thread == 0) {
-                ALOGW("releaseAudioPatch() bad playback I/O handle %d",
-                                                              patch->sources[0].ext.mix.handle);
-                status = BAD_VALUE;
-                break;
+                thread = audioflinger->checkMmapThread_l(patch->sources[0].ext.mix.handle);
+                if (thread == 0) {
+                    ALOGW("releaseAudioPatch() bad playback I/O handle %d",
+                                                                  patch->sources[0].ext.mix.handle);
+                    status = BAD_VALUE;
+                    break;
+                }
             }
             status = thread->sendReleaseAudioPatchConfigEvent(removedPatch->mHalHandle);
         } break;
@@ -687,13 +692,7 @@
     }
 
     AudioHwDevice *audioHwDevice = audioflinger->mAudioHwDevs.valueAt(index);
-    if (audioHwDevice->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        audio_hw_device_t *hwDevice = audioHwDevice->hwDevice();
-        return hwDevice->set_audio_port_config(hwDevice, config);
-    } else {
-        return INVALID_OPERATION;
-    }
-    return NO_ERROR;
+    return audioHwDevice->hwDevice()->setAudioPortConfig(config);
 }
 
 } // namespace android
diff --git a/services/audioflinger/PatchPanel.h b/services/audioflinger/PatchPanel.h
index 16ec278..d37c0d3 100644
--- a/services/audioflinger/PatchPanel.h
+++ b/services/audioflinger/PatchPanel.h
@@ -24,7 +24,7 @@
 
     class Patch;
 
-    PatchPanel(const sp<AudioFlinger>& audioFlinger);
+    explicit PatchPanel(const sp<AudioFlinger>& audioFlinger);
     virtual ~PatchPanel();
 
     /* List connected audio ports and their attributes */
@@ -54,7 +54,7 @@
 
     class Patch {
     public:
-        Patch(const struct audio_patch *patch) :
+        explicit Patch(const struct audio_patch *patch) :
             mAudioPatch(*patch), mHandle(AUDIO_PATCH_HANDLE_NONE),
             mHalHandle(AUDIO_PATCH_HANDLE_NONE), mRecordPatchHandle(AUDIO_PATCH_HANDLE_NONE),
             mPlaybackPatchHandle(AUDIO_PATCH_HANDLE_NONE) {}
diff --git a/services/audioflinger/PlaybackTracks.h b/services/audioflinger/PlaybackTracks.h
index 5601bde..f84ba08 100644
--- a/services/audioflinger/PlaybackTracks.h
+++ b/services/audioflinger/PlaybackTracks.h
@@ -32,9 +32,10 @@
                                 void *buffer,
                                 const sp<IMemory>& sharedBuffer,
                                 audio_session_t sessionId,
-                                int uid,
+                                uid_t uid,
                                 audio_output_flags_t flags,
-                                track_type type);
+                                track_type type,
+                                audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE);
     virtual             ~Track();
     virtual status_t    initCheck() const;
 
@@ -58,6 +59,10 @@
             bool        isOffloaded() const
                                 { return (mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; }
             bool        isDirect() const { return (mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0; }
+            bool        isOffloadedOrDirect() const { return (mFlags
+                            & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD
+                                    | AUDIO_OUTPUT_FLAG_DIRECT)) != 0; }
+
             status_t    setParameters(const String8& keyValuePairs);
             status_t    attachAuxEffect(int EffectId);
             void        setAuxBuffer(int EffectId, int32_t *buffer);
@@ -75,6 +80,13 @@
 
     virtual bool        isFastTrack() const { return (mFlags & AUDIO_OUTPUT_FLAG_FAST) != 0; }
 
+// implement volume handling.
+   VolumeShaper::Status applyVolumeShaper(
+                                const sp<VolumeShaper::Configuration>& configuration,
+                                const sp<VolumeShaper::Operation>& operation);
+sp<VolumeShaper::State> getVolumeShaperState(int id);
+    sp<VolumeHandler>   getVolumeHandler() { return mVolumeHandler; }
+
 protected:
     // for numerous
     friend class PlaybackThread;
@@ -117,10 +129,9 @@
 
 public:
     void triggerEvents(AudioSystem::sync_event_t type);
-    void invalidate();
+    virtual void invalidate();
     void disable();
 
-    bool isInvalid() const { return mIsInvalid; }
     int fastIndex() const { return mFastIndex; }
 
 protected:
@@ -152,6 +163,8 @@
 
     ExtendedTimestamp  mSinkTimestamp;
 
+    sp<VolumeHandler>  mVolumeHandler; // handles multiple VolumeShaper configs and operations
+
 private:
     // The following fields are only for fast tracks, and should be in a subclass
     int                 mFastIndex; // index within FastMixerState::mFastTracks[];
@@ -165,8 +178,7 @@
     volatile float      mCachedVolume;  // combined master volume and stream type volume;
                                         // 'volatile' means accessed without lock or
                                         // barrier, but is read/written atomically
-    bool                mIsInvalid; // non-resettable latch, set by invalidate()
-    AudioTrackServerProxy*  mAudioTrackServerProxy;
+    sp<AudioTrackServerProxy>  mAudioTrackServerProxy;
     bool                mResumeToStopping; // track was paused in stopping state.
     bool                mFlushHwPending; // track requests for thread flush
     audio_output_flags_t mFlags;
@@ -188,7 +200,7 @@
                                 audio_format_t format,
                                 audio_channel_mask_t channelMask,
                                 size_t frameCount,
-                                int uid);
+                                uid_t uid);
     virtual             ~OutputTrack();
 
     virtual status_t    start(AudioSystem::sync_event_t event =
@@ -214,8 +226,8 @@
     Vector < Buffer* >          mBufferQueue;
     AudioBufferProvider::Buffer mOutBuffer;
     bool                        mActive;
-    DuplicatingThread* const mSourceThread; // for waitTimeMs() in write()
-    AudioTrackClientProxy*      mClientProxy;
+    DuplicatingThread* const    mSourceThread; // for waitTimeMs() in write()
+    sp<AudioTrackClientProxy>   mClientProxy;
 };  // end of OutputTrack
 
 // playback track, used by PatchPanel
diff --git a/services/audioflinger/RecordTracks.h b/services/audioflinger/RecordTracks.h
index 123e033..72ebc93 100644
--- a/services/audioflinger/RecordTracks.h
+++ b/services/audioflinger/RecordTracks.h
@@ -30,9 +30,10 @@
                                 size_t frameCount,
                                 void *buffer,
                                 audio_session_t sessionId,
-                                int uid,
+                                uid_t uid,
                                 audio_input_flags_t flags,
-                                track_type type);
+                                track_type type,
+                                audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE);
     virtual             ~RecordTrack();
     virtual status_t    initCheck() const;
 
@@ -41,7 +42,7 @@
 
             void        destroy();
 
-            void        invalidate();
+    virtual void        invalidate();
             // clear the buffer overflow flag
             void        clearOverflow() { mOverflow = false; }
             // set the buffer overflow flag and return previous value
diff --git a/services/audioflinger/SpdifStreamOut.cpp b/services/audioflinger/SpdifStreamOut.cpp
index 004a068..a44ab2a 100644
--- a/services/audioflinger/SpdifStreamOut.cpp
+++ b/services/audioflinger/SpdifStreamOut.cpp
@@ -17,13 +17,12 @@
 
 #define LOG_TAG "AudioFlinger"
 //#define LOG_NDEBUG 0
-#include <hardware/audio.h>
+#include <system/audio.h>
 #include <utils/Log.h>
 
 #include <audio_utils/spdif/SPDIFEncoder.h>
 
 #include "AudioHwDevice.h"
-#include "AudioStreamOut.h"
 #include "SpdifStreamOut.h"
 
 namespace android {
diff --git a/services/audioflinger/SpdifStreamOut.h b/services/audioflinger/SpdifStreamOut.h
index c870250..fc9bb6e 100644
--- a/services/audioflinger/SpdifStreamOut.h
+++ b/services/audioflinger/SpdifStreamOut.h
@@ -23,9 +23,7 @@
 
 #include <system/audio.h>
 
-#include "AudioHwDevice.h"
 #include "AudioStreamOut.h"
-#include "SpdifStreamOut.h"
 
 #include <audio_utils/spdif/SPDIFEncoder.h>
 
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 7423ea9..a6857fe 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -29,17 +29,20 @@
 #include <cutils/properties.h>
 #include <media/AudioParameter.h>
 #include <media/AudioResamplerPublic.h>
+#include <media/RecordBufferConverter.h>
+#include <media/TypeConverter.h>
 #include <utils/Log.h>
 #include <utils/Trace.h>
 
 #include <private/media/AudioTrackShared.h>
-#include <hardware/audio.h>
-#include <audio_effects/effect_ns.h>
-#include <audio_effects/effect_aec.h>
-#include <audio_utils/conversion.h>
+#include <private/android_filesystem_config.h>
+#include <audio_utils/mono_blend.h>
 #include <audio_utils/primitives.h>
 #include <audio_utils/format.h>
 #include <audio_utils/minifloat.h>
+#include <system/audio_effects/effect_ns.h>
+#include <system/audio_effects/effect_aec.h>
+#include <system/audio.h>
 
 // NBAIO implementations
 #include <media/nbaio/AudioStreamInSource.h>
@@ -54,8 +57,6 @@
 #include <powermanager/PowerManager.h>
 
 #include "AudioFlinger.h"
-#include "AudioMixer.h"
-#include "BufferProviders.h"
 #include "FastMixer.h"
 #include "FastCapture.h"
 #include "ServiceUtilities.h"
@@ -73,6 +74,9 @@
 
 #include "AutoPark.h"
 
+#include <pthread.h>
+#include "TypedLogger.h"
+
 // ----------------------------------------------------------------------------
 
 // Note: the following macro is used for extremely verbose logging message.  In
@@ -97,7 +101,7 @@
 }
 
 #ifndef ARRAY_SIZE
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
 #endif
 
 namespace android {
@@ -143,6 +147,12 @@
 // Direct output thread minimum sleep time in idle or active(underrun) state
 static const nsecs_t kDirectMinSleepTimeUs = 10000;
 
+// The universal constant for ubiquitous 20ms value. The value of 20ms seems to provide a good
+// balance between power consumption and latency, and allows threads to be scheduled reliably
+// by the CFS scheduler.
+// FIXME Express other hardcoded references to 20ms with references to this constant and move
+// it appropriately.
+#define FMS_20 20
 
 // Whether to use fast mixer
 static const enum {
@@ -437,173 +447,35 @@
         return "RECORD";
     case OFFLOAD:
         return "OFFLOAD";
+    case MMAP:
+        return "MMAP";
     default:
         return "unknown";
     }
 }
 
-String8 devicesToString(audio_devices_t devices)
+std::string devicesToString(audio_devices_t devices)
 {
-    static const struct mapping {
-        audio_devices_t mDevices;
-        const char *    mString;
-    } mappingsOut[] = {
-        {AUDIO_DEVICE_OUT_EARPIECE,         "EARPIECE"},
-        {AUDIO_DEVICE_OUT_SPEAKER,          "SPEAKER"},
-        {AUDIO_DEVICE_OUT_WIRED_HEADSET,    "WIRED_HEADSET"},
-        {AUDIO_DEVICE_OUT_WIRED_HEADPHONE,  "WIRED_HEADPHONE"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_SCO,    "BLUETOOTH_SCO"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET,    "BLUETOOTH_SCO_HEADSET"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT,     "BLUETOOTH_SCO_CARKIT"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_A2DP,           "BLUETOOTH_A2DP"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES,"BLUETOOTH_A2DP_HEADPHONES"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER,   "BLUETOOTH_A2DP_SPEAKER"},
-        {AUDIO_DEVICE_OUT_AUX_DIGITAL,      "AUX_DIGITAL"},
-        {AUDIO_DEVICE_OUT_HDMI,             "HDMI"},
-        {AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET,"ANLG_DOCK_HEADSET"},
-        {AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET,"DGTL_DOCK_HEADSET"},
-        {AUDIO_DEVICE_OUT_USB_ACCESSORY,    "USB_ACCESSORY"},
-        {AUDIO_DEVICE_OUT_USB_DEVICE,       "USB_DEVICE"},
-        {AUDIO_DEVICE_OUT_TELEPHONY_TX,     "TELEPHONY_TX"},
-        {AUDIO_DEVICE_OUT_LINE,             "LINE"},
-        {AUDIO_DEVICE_OUT_HDMI_ARC,         "HDMI_ARC"},
-        {AUDIO_DEVICE_OUT_SPDIF,            "SPDIF"},
-        {AUDIO_DEVICE_OUT_FM,               "FM"},
-        {AUDIO_DEVICE_OUT_AUX_LINE,         "AUX_LINE"},
-        {AUDIO_DEVICE_OUT_SPEAKER_SAFE,     "SPEAKER_SAFE"},
-        {AUDIO_DEVICE_OUT_IP,               "IP"},
-        {AUDIO_DEVICE_OUT_BUS,              "BUS"},
-        {AUDIO_DEVICE_NONE,                 "NONE"},       // must be last
-    }, mappingsIn[] = {
-        {AUDIO_DEVICE_IN_COMMUNICATION,     "COMMUNICATION"},
-        {AUDIO_DEVICE_IN_AMBIENT,           "AMBIENT"},
-        {AUDIO_DEVICE_IN_BUILTIN_MIC,       "BUILTIN_MIC"},
-        {AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET, "BLUETOOTH_SCO_HEADSET"},
-        {AUDIO_DEVICE_IN_WIRED_HEADSET,     "WIRED_HEADSET"},
-        {AUDIO_DEVICE_IN_AUX_DIGITAL,       "AUX_DIGITAL"},
-        {AUDIO_DEVICE_IN_VOICE_CALL,        "VOICE_CALL"},
-        {AUDIO_DEVICE_IN_TELEPHONY_RX,      "TELEPHONY_RX"},
-        {AUDIO_DEVICE_IN_BACK_MIC,          "BACK_MIC"},
-        {AUDIO_DEVICE_IN_REMOTE_SUBMIX,     "REMOTE_SUBMIX"},
-        {AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET, "ANLG_DOCK_HEADSET"},
-        {AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET, "DGTL_DOCK_HEADSET"},
-        {AUDIO_DEVICE_IN_USB_ACCESSORY,     "USB_ACCESSORY"},
-        {AUDIO_DEVICE_IN_USB_DEVICE,        "USB_DEVICE"},
-        {AUDIO_DEVICE_IN_FM_TUNER,          "FM_TUNER"},
-        {AUDIO_DEVICE_IN_TV_TUNER,          "TV_TUNER"},
-        {AUDIO_DEVICE_IN_LINE,              "LINE"},
-        {AUDIO_DEVICE_IN_SPDIF,             "SPDIF"},
-        {AUDIO_DEVICE_IN_BLUETOOTH_A2DP,    "BLUETOOTH_A2DP"},
-        {AUDIO_DEVICE_IN_LOOPBACK,          "LOOPBACK"},
-        {AUDIO_DEVICE_IN_IP,                "IP"},
-        {AUDIO_DEVICE_IN_BUS,               "BUS"},
-        {AUDIO_DEVICE_NONE,                 "NONE"},        // must be last
-    };
-    String8 result;
-    audio_devices_t allDevices = AUDIO_DEVICE_NONE;
-    const mapping *entry;
+    std::string result;
     if (devices & AUDIO_DEVICE_BIT_IN) {
-        devices &= ~AUDIO_DEVICE_BIT_IN;
-        entry = mappingsIn;
+        InputDeviceConverter::maskToString(devices, result);
     } else {
-        entry = mappingsOut;
-    }
-    for ( ; entry->mDevices != AUDIO_DEVICE_NONE; entry++) {
-        allDevices = (audio_devices_t) (allDevices | entry->mDevices);
-        if (devices & entry->mDevices) {
-            if (!result.isEmpty()) {
-                result.append("|");
-            }
-            result.append(entry->mString);
-        }
-    }
-    if (devices & ~allDevices) {
-        if (!result.isEmpty()) {
-            result.append("|");
-        }
-        result.appendFormat("0x%X", devices & ~allDevices);
-    }
-    if (result.isEmpty()) {
-        result.append(entry->mString);
+        OutputDeviceConverter::maskToString(devices, result);
     }
     return result;
 }
 
-String8 inputFlagsToString(audio_input_flags_t flags)
+std::string inputFlagsToString(audio_input_flags_t flags)
 {
-    static const struct mapping {
-        audio_input_flags_t     mFlag;
-        const char *            mString;
-    } mappings[] = {
-        {AUDIO_INPUT_FLAG_FAST,             "FAST"},
-        {AUDIO_INPUT_FLAG_HW_HOTWORD,       "HW_HOTWORD"},
-        {AUDIO_INPUT_FLAG_RAW,              "RAW"},
-        {AUDIO_INPUT_FLAG_SYNC,             "SYNC"},
-        {AUDIO_INPUT_FLAG_NONE,             "NONE"},        // must be last
-    };
-    String8 result;
-    audio_input_flags_t allFlags = AUDIO_INPUT_FLAG_NONE;
-    const mapping *entry;
-    for (entry = mappings; entry->mFlag != AUDIO_INPUT_FLAG_NONE; entry++) {
-        allFlags = (audio_input_flags_t) (allFlags | entry->mFlag);
-        if (flags & entry->mFlag) {
-            if (!result.isEmpty()) {
-                result.append("|");
-            }
-            result.append(entry->mString);
-        }
-    }
-    if (flags & ~allFlags) {
-        if (!result.isEmpty()) {
-            result.append("|");
-        }
-        result.appendFormat("0x%X", flags & ~allFlags);
-    }
-    if (result.isEmpty()) {
-        result.append(entry->mString);
-    }
+    std::string result;
+    InputFlagConverter::maskToString(flags, result);
     return result;
 }
 
-String8 outputFlagsToString(audio_output_flags_t flags)
+std::string outputFlagsToString(audio_output_flags_t flags)
 {
-    static const struct mapping {
-        audio_output_flags_t    mFlag;
-        const char *            mString;
-    } mappings[] = {
-        {AUDIO_OUTPUT_FLAG_DIRECT,          "DIRECT"},
-        {AUDIO_OUTPUT_FLAG_PRIMARY,         "PRIMARY"},
-        {AUDIO_OUTPUT_FLAG_FAST,            "FAST"},
-        {AUDIO_OUTPUT_FLAG_DEEP_BUFFER,     "DEEP_BUFFER"},
-        {AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD,"COMPRESS_OFFLOAD"},
-        {AUDIO_OUTPUT_FLAG_NON_BLOCKING,    "NON_BLOCKING"},
-        {AUDIO_OUTPUT_FLAG_HW_AV_SYNC,      "HW_AV_SYNC"},
-        {AUDIO_OUTPUT_FLAG_RAW,             "RAW"},
-        {AUDIO_OUTPUT_FLAG_SYNC,            "SYNC"},
-        {AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO, "IEC958_NONAUDIO"},
-        {AUDIO_OUTPUT_FLAG_NONE,            "NONE"},        // must be last
-    };
-    String8 result;
-    audio_output_flags_t allFlags = AUDIO_OUTPUT_FLAG_NONE;
-    const mapping *entry;
-    for (entry = mappings; entry->mFlag != AUDIO_OUTPUT_FLAG_NONE; entry++) {
-        allFlags = (audio_output_flags_t) (allFlags | entry->mFlag);
-        if (flags & entry->mFlag) {
-            if (!result.isEmpty()) {
-                result.append("|");
-            }
-            result.append(entry->mString);
-        }
-    }
-    if (flags & ~allFlags) {
-        if (!result.isEmpty()) {
-            result.append("|");
-        }
-        result.appendFormat("0x%X", flags & ~allFlags);
-    }
-    if (result.isEmpty()) {
-        result.append(entry->mString);
-    }
+    std::string result;
+    OutputFlagConverter::maskToString(flags, result);
     return result;
 }
 
@@ -641,7 +513,7 @@
         // mName will be set by concrete (non-virtual) subclass
         mDeathRecipient(new PMDeathRecipient(this)),
         mSystemReady(systemReady),
-        mNotifiedBatteryStart(false)
+        mSignalPending(false)
 {
     memset(&mPatch, 0, sizeof(struct audio_patch));
 }
@@ -663,7 +535,7 @@
 {
     status_t status = initCheck();
     if (status == NO_ERROR) {
-        ALOGI("AudioFlinger's thread %p ready to run", this);
+        ALOGI("AudioFlinger's thread %p tid=%d ready to run", this, getTid());
     } else {
         ALOGE("No working audio driver found.");
     }
@@ -744,16 +616,17 @@
     sendConfigEvent_l(configEvent);
 }
 
-void AudioFlinger::ThreadBase::sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio)
+void AudioFlinger::ThreadBase::sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio, bool forApp)
 {
     Mutex::Autolock _l(mLock);
-    sendPrioConfigEvent_l(pid, tid, prio);
+    sendPrioConfigEvent_l(pid, tid, prio, forApp);
 }
 
 // sendPrioConfigEvent_l() must be called with ThreadBase::mLock held
-void AudioFlinger::ThreadBase::sendPrioConfigEvent_l(pid_t pid, pid_t tid, int32_t prio)
+void AudioFlinger::ThreadBase::sendPrioConfigEvent_l(
+        pid_t pid, pid_t tid, int32_t prio, bool forApp)
 {
-    sp<ConfigEvent> configEvent = (ConfigEvent *)new PrioConfigEvent(pid, tid, prio);
+    sp<ConfigEvent> configEvent = (ConfigEvent *)new PrioConfigEvent(pid, tid, prio, forApp);
     sendConfigEvent_l(configEvent);
 }
 
@@ -763,12 +636,12 @@
     sp<ConfigEvent> configEvent;
     AudioParameter param(keyValuePair);
     int value;
-    if (param.getInt(String8(AUDIO_PARAMETER_MONO_OUTPUT), value) == NO_ERROR) {
+    if (param.getInt(String8(AudioParameter::keyMonoOutput), value) == NO_ERROR) {
         setMasterMono_l(value != 0);
         if (param.size() == 1) {
             return NO_ERROR; // should be a solo parameter - we don't pass down
         }
-        param.remove(String8(AUDIO_PARAMETER_MONO_OUTPUT));
+        param.remove(String8(AudioParameter::keyMonoOutput));
         configEvent = new SetParameterConfigEvent(param.toString());
     } else {
         configEvent = new SetParameterConfigEvent(keyValuePair);
@@ -813,7 +686,7 @@
         case CFG_EVENT_PRIO: {
             PrioConfigEventData *data = (PrioConfigEventData *)event->mData.get();
             // FIXME Need to understand why this has to be done asynchronously
-            int err = requestPriority(data->mPid, data->mTid, data->mPrio,
+            int err = requestPriority(data->mPid, data->mTid, data->mPrio, data->mForApp,
                     true /*asynchronous*/);
             if (err != 0) {
                 ALOGW("Policy SCHED_FIFO priority %d is unavailable for pid %d tid %d; error %d",
@@ -828,17 +701,29 @@
             SetParameterConfigEventData *data = (SetParameterConfigEventData *)event->mData.get();
             if (checkForNewParameter_l(data->mKeyValuePairs, event->mStatus)) {
                 configChanged = true;
+                mLocalLog.log("CFG_EVENT_SET_PARAMETER: (%s) configuration changed",
+                        data->mKeyValuePairs.string());
             }
         } break;
         case CFG_EVENT_CREATE_AUDIO_PATCH: {
+            const audio_devices_t oldDevice = getDevice();
             CreateAudioPatchConfigEventData *data =
                                             (CreateAudioPatchConfigEventData *)event->mData.get();
             event->mStatus = createAudioPatch_l(&data->mPatch, &data->mHandle);
+            const audio_devices_t newDevice = getDevice();
+            mLocalLog.log("CFG_EVENT_CREATE_AUDIO_PATCH: old device %#x (%s) new device %#x (%s)",
+                    (unsigned)oldDevice, devicesToString(oldDevice).c_str(),
+                    (unsigned)newDevice, devicesToString(newDevice).c_str());
         } break;
         case CFG_EVENT_RELEASE_AUDIO_PATCH: {
+            const audio_devices_t oldDevice = getDevice();
             ReleaseAudioPatchConfigEventData *data =
                                             (ReleaseAudioPatchConfigEventData *)event->mData.get();
             event->mStatus = releaseAudioPatch_l(data->mHandle);
+            const audio_devices_t newDevice = getDevice();
+            mLocalLog.log("CFG_EVENT_RELEASE_AUDIO_PATCH: old device %#x (%s) new device %#x (%s)",
+                    (unsigned)oldDevice, devicesToString(oldDevice).c_str(),
+                    (unsigned)newDevice, devicesToString(newDevice).c_str());
         } break;
         default:
             ALOG_ASSERT(false, "processConfigEvents_l() unknown event type %d", event->mType);
@@ -926,23 +811,24 @@
     char buffer[SIZE];
     String8 result;
 
+    dprintf(fd, "\n%s thread %p, name %s, tid %d, type %d (%s):\n", isOutput() ? "Output" : "Input",
+            this, mThreadName, getTid(), type(), threadTypeToString(type()));
+
     bool locked = AudioFlinger::dumpTryLock(mLock);
     if (!locked) {
-        dprintf(fd, "thread %p may be deadlocked\n", this);
+        dprintf(fd, "  Thread may be deadlocked\n");
     }
 
-    dprintf(fd, "  Thread name: %s\n", mThreadName);
     dprintf(fd, "  I/O handle: %d\n", mId);
-    dprintf(fd, "  TID: %d\n", getTid());
     dprintf(fd, "  Standby: %s\n", mStandby ? "yes" : "no");
     dprintf(fd, "  Sample rate: %u Hz\n", mSampleRate);
     dprintf(fd, "  HAL frame count: %zu\n", mFrameCount);
-    dprintf(fd, "  HAL format: 0x%x (%s)\n", mHALFormat, formatToString(mHALFormat));
+    dprintf(fd, "  HAL format: 0x%x (%s)\n", mHALFormat, formatToString(mHALFormat).c_str());
     dprintf(fd, "  HAL buffer size: %zu bytes\n", mBufferSize);
     dprintf(fd, "  Channel count: %u\n", mChannelCount);
     dprintf(fd, "  Channel mask: 0x%08x (%s)\n", mChannelMask,
             channelMaskToString(mChannelMask, mType != RECORD).string());
-    dprintf(fd, "  Processing format: 0x%x (%s)\n", mFormat, formatToString(mFormat));
+    dprintf(fd, "  Processing format: 0x%x (%s)\n", mFormat, formatToString(mFormat).c_str());
     dprintf(fd, "  Processing frame size: %zu bytes\n", mFrameSize);
     dprintf(fd, "  Pending config events:");
     size_t numConfig = mConfigEvents.size();
@@ -955,8 +841,9 @@
     } else {
         dprintf(fd, " none\n");
     }
-    dprintf(fd, "  Output device: %#x (%s)\n", mOutDevice, devicesToString(mOutDevice).string());
-    dprintf(fd, "  Input device: %#x (%s)\n", mInDevice, devicesToString(mInDevice).string());
+    // Note: output device may be used by capture threads for effects such as AEC.
+    dprintf(fd, "  Output device: %#x (%s)\n", mOutDevice, devicesToString(mOutDevice).c_str());
+    dprintf(fd, "  Input device: %#x (%s)\n", mInDevice, devicesToString(mInDevice).c_str());
     dprintf(fd, "  Audio source: %d (%s)\n", mAudioSource, sourceToString(mAudioSource));
 
     if (locked) {
@@ -982,10 +869,10 @@
     }
 }
 
-void AudioFlinger::ThreadBase::acquireWakeLock(int uid)
+void AudioFlinger::ThreadBase::acquireWakeLock()
 {
     Mutex::Autolock _l(mLock);
-    acquireWakeLock_l(uid);
+    acquireWakeLock_l();
 }
 
 String16 AudioFlinger::ThreadBase::getWakeLockTag()
@@ -1001,42 +888,31 @@
         return String16("AudioIn");
     case OFFLOAD:
         return String16("AudioOffload");
+    case MMAP:
+        return String16("Mmap");
     default:
         ALOG_ASSERT(false);
         return String16("AudioUnknown");
     }
 }
 
-void AudioFlinger::ThreadBase::acquireWakeLock_l(int uid)
+void AudioFlinger::ThreadBase::acquireWakeLock_l()
 {
     getPowerManager_l();
     if (mPowerManager != 0) {
         sp<IBinder> binder = new BBinder();
-        status_t status;
-        if (uid >= 0) {
-            status = mPowerManager->acquireWakeLockWithUid(POWERMANAGER_PARTIAL_WAKE_LOCK,
-                    binder,
-                    getWakeLockTag(),
-                    String16("audioserver"),
-                    uid,
-                    true /* FIXME force oneway contrary to .aidl */);
-        } else {
-            status = mPowerManager->acquireWakeLock(POWERMANAGER_PARTIAL_WAKE_LOCK,
+        // Uses AID_AUDIOSERVER for wakelock.  updateWakeLockUids_l() updates with client uids.
+        status_t status = mPowerManager->acquireWakeLock(POWERMANAGER_PARTIAL_WAKE_LOCK,
                     binder,
                     getWakeLockTag(),
                     String16("audioserver"),
                     true /* FIXME force oneway contrary to .aidl */);
-        }
         if (status == NO_ERROR) {
             mWakeLockToken = binder;
         }
         ALOGV("acquireWakeLock_l() %s status %d", mThreadName, status);
     }
 
-    if (!mNotifiedBatteryStart) {
-        BatteryNotifier::getInstance().noteStartAudio();
-        mNotifiedBatteryStart = true;
-    }
     gBoottime.acquire(mWakeLockToken);
     mTimestamp.mTimebaseOffset[ExtendedTimestamp::TIMEBASE_BOOTTIME] =
             gBoottime.getBoottimeOffset();
@@ -1059,16 +935,6 @@
         }
         mWakeLockToken.clear();
     }
-
-    if (mNotifiedBatteryStart) {
-        BatteryNotifier::getInstance().noteStopAudio();
-        mNotifiedBatteryStart = false;
-    }
-}
-
-void AudioFlinger::ThreadBase::updateWakeLockUids(const SortedVector<int> &uids) {
-    Mutex::Autolock _l(mLock);
-    updateWakeLockUids_l(uids);
 }
 
 void AudioFlinger::ThreadBase::getPowerManager_l() {
@@ -1085,8 +951,17 @@
     }
 }
 
-void AudioFlinger::ThreadBase::updateWakeLockUids_l(const SortedVector<int> &uids) {
+void AudioFlinger::ThreadBase::updateWakeLockUids_l(const SortedVector<uid_t> &uids) {
     getPowerManager_l();
+
+#if !LOG_NDEBUG
+    std::stringstream s;
+    for (uid_t uid : uids) {
+        s << uid << " ";
+    }
+    ALOGD("updateWakeLockUids_l %s uids:%s", mThreadName, s.str().c_str());
+#endif
+
     if (mWakeLockToken == NULL) { // token may be NULL if AudioFlinger::systemReady() not called.
         if (mSystemReady) {
             ALOGE("no wake lock to update, but system ready!");
@@ -1096,10 +971,10 @@
         return;
     }
     if (mPowerManager != 0) {
-        sp<IBinder> binder = new BBinder();
-        status_t status;
-        status = mPowerManager->updateWakeLockUids(mWakeLockToken, uids.size(), uids.array(),
-                    true /* FIXME force oneway contrary to .aidl */);
+        std::vector<int> uidsAsInt(uids.begin(), uids.end()); // powermanager expects uids as ints
+        status_t status = mPowerManager->updateWakeLockUids(
+                mWakeLockToken, uidsAsInt.size(), uidsAsInt.data(),
+                true /* FIXME force oneway contrary to .aidl */);
         ALOGV("updateWakeLockUids_l() %s status %d", mThreadName, status);
     }
 }
@@ -1153,7 +1028,7 @@
             mSuspendedSessions.valueAt(index);
 
     for (size_t i = 0; i < sessionEffects.size(); i++) {
-        sp<SuspendedSessionDesc> desc = sessionEffects.valueAt(i);
+        const sp<SuspendedSessionDesc>& desc = sessionEffects.valueAt(i);
         for (int j = 0; j < desc->mRefCount; j++) {
             if (sessionEffects.keyAt(i) == EffectChain::kKeyForSuspendAll) {
                 chain->setEffectSuspendedAll_l(true);
@@ -1412,6 +1287,7 @@
     bool chainCreated = false;
     bool effectCreated = false;
     bool effectRegistered = false;
+    audio_unique_id_t effectId = AUDIO_UNIQUE_ID_USE_UNSPECIFIED;
 
     lStatus = initCheck();
     if (lStatus != NO_ERROR) {
@@ -1445,15 +1321,16 @@
         ALOGV("createEffect_l() got effect %p on chain %p", effect.get(), chain.get());
 
         if (effect == 0) {
-            audio_unique_id_t id = mAudioFlinger->nextUniqueId(AUDIO_UNIQUE_ID_USE_EFFECT);
+            effectId = mAudioFlinger->nextUniqueId(AUDIO_UNIQUE_ID_USE_EFFECT);
             // Check CPU and memory usage
-            lStatus = AudioSystem::registerEffect(desc, mId, chain->strategy(), sessionId, id);
+            lStatus = AudioSystem::registerEffect(
+                    desc, mId, chain->strategy(), sessionId, effectId);
             if (lStatus != NO_ERROR) {
                 goto Exit;
             }
             effectRegistered = true;
             // create a new effect module if none present in the chain
-            lStatus = chain->createEffect_l(effect, this, desc, id, sessionId, pinned);
+            lStatus = chain->createEffect_l(effect, this, desc, effectId, sessionId, pinned);
             if (lStatus != NO_ERROR) {
                 goto Exit;
             }
@@ -1482,7 +1359,7 @@
             chain->removeEffect_l(effect);
         }
         if (effectRegistered) {
-            AudioSystem::unregisterEffect(effect->id());
+            AudioSystem::unregisterEffect(effectId);
         }
         if (chainCreated) {
             removeEffectChain_l(chain);
@@ -1669,6 +1546,83 @@
     mPendingConfigEvents.clear();
 }
 
+template <typename T>
+ssize_t AudioFlinger::ThreadBase::ActiveTracks<T>::add(const sp<T> &track) {
+    ssize_t index = mActiveTracks.indexOf(track);
+    if (index >= 0) {
+        ALOGW("ActiveTracks<T>::add track %p already there", track.get());
+        return index;
+    }
+    mActiveTracksGeneration++;
+    mLatestActiveTrack = track;
+    ++mBatteryCounter[track->uid()].second;
+    return mActiveTracks.add(track);
+}
+
+template <typename T>
+ssize_t AudioFlinger::ThreadBase::ActiveTracks<T>::remove(const sp<T> &track) {
+    ssize_t index = mActiveTracks.remove(track);
+    if (index < 0) {
+        ALOGW("ActiveTracks<T>::remove nonexistent track %p", track.get());
+        return index;
+    }
+    mActiveTracksGeneration++;
+    --mBatteryCounter[track->uid()].second;
+    // mLatestActiveTrack is not cleared even if is the same as track.
+    return index;
+}
+
+template <typename T>
+void AudioFlinger::ThreadBase::ActiveTracks<T>::clear() {
+    for (const sp<T> &track : mActiveTracks) {
+        BatteryNotifier::getInstance().noteStopAudio(track->uid());
+    }
+    mLastActiveTracksGeneration = mActiveTracksGeneration;
+    mActiveTracks.clear();
+    mLatestActiveTrack.clear();
+    mBatteryCounter.clear();
+}
+
+template <typename T>
+void AudioFlinger::ThreadBase::ActiveTracks<T>::updatePowerState(
+        sp<ThreadBase> thread, bool force) {
+    // Updates ActiveTracks client uids to the thread wakelock.
+    if (mActiveTracksGeneration != mLastActiveTracksGeneration || force) {
+        thread->updateWakeLockUids_l(getWakeLockUids());
+        mLastActiveTracksGeneration = mActiveTracksGeneration;
+    }
+
+    // Updates BatteryNotifier uids
+    for (auto it = mBatteryCounter.begin(); it != mBatteryCounter.end();) {
+        const uid_t uid = it->first;
+        ssize_t &previous = it->second.first;
+        ssize_t &current = it->second.second;
+        if (current > 0) {
+            if (previous == 0) {
+                BatteryNotifier::getInstance().noteStartAudio(uid);
+            }
+            previous = current;
+            ++it;
+        } else if (current == 0) {
+            if (previous > 0) {
+                BatteryNotifier::getInstance().noteStopAudio(uid);
+            }
+            it = mBatteryCounter.erase(it); // std::map<> is stable on iterator erase.
+        } else /* (current < 0) */ {
+            LOG_ALWAYS_FATAL("negative battery count %zd", current);
+        }
+    }
+}
+
+void AudioFlinger::ThreadBase::broadcast_l()
+{
+    // Thread could be blocked waiting for async
+    // so signal it to handle state changes immediately
+    // If threadLoop is currently unlocked a signal of mWaitWorkCV will
+    // be lost so we also flag to prevent it blocking on mWaitWorkCV
+    mSignalPending = true;
+    mWaitWorkCV.broadcast();
+}
 
 // ----------------------------------------------------------------------------
 //      Playback
@@ -1695,7 +1649,6 @@
         mSuspended(0), mBytesWritten(0),
         mFramesWritten(0),
         mSuspendedFrames(0),
-        mActiveTracksGeneration(0),
         // mStreamTypes[] initialized in constructor body
         mOutput(output),
         mLastWriteTime(-1), mNumWrites(0), mNumDelayedWrites(0), mInWrite(false),
@@ -1707,7 +1660,6 @@
         mUseAsyncWrite(false),
         mWriteAckSequence(0),
         mDrainSequence(0),
-        mSignalPending(false),
         mScreenState(AudioFlinger::mScreenState),
         // index 0 is reserved for normal mixer's submix
         mFastTrackAvailMask(((1 << FastMixerState::sMaxFastTracks) - 1) & ~1),
@@ -1758,6 +1710,8 @@
     dumpInternals(fd, args);
     dumpTracks(fd, args);
     dumpEffectChains(fd, args);
+    dprintf(fd, "  Local log:\n");
+    mLocalLog.dump(fd, "   " /* prefix */, 40 /* lines */);
 }
 
 void AudioFlinger::PlaybackThread::dumpTracks(int fd, const Vector<String16>& args __unused)
@@ -1814,8 +1768,8 @@
         result.append(buffer);
         Track::appendDumpHeader(result);
         for (size_t i = 0; i < numactive; ++i) {
-            sp<Track> track = mActiveTracks[i].promote();
-            if (track != 0 && mTracks.indexOf(track) < 0) {
+            sp<Track> track = mActiveTracks[i];
+            if (mTracks.indexOf(track) < 0) {
                 track->dump(buffer, SIZE, true);
                 result.append(buffer);
             }
@@ -1827,8 +1781,6 @@
 
 void AudioFlinger::PlaybackThread::dumpInternals(int fd, const Vector<String16>& args)
 {
-    dprintf(fd, "\nOutput thread %p type %d (%s):\n", this, type(), threadTypeToString(type()));
-
     dumpBase(fd, args);
 
     dprintf(fd, "  Normal frame count: %zu\n", mNormalFrameCount);
@@ -1845,8 +1797,8 @@
     dprintf(fd, "  Standby delay ns=%lld\n", (long long)mStandbyDelayNs);
     AudioStreamOut *output = mOutput;
     audio_output_flags_t flags = output != NULL ? output->flags : AUDIO_OUTPUT_FLAG_NONE;
-    String8 flagsAsString = outputFlagsToString(flags);
-    dprintf(fd, "  AudioStreamOut: %p flags %#x (%s)\n", output, flags, flagsAsString.string());
+    dprintf(fd, "  AudioStreamOut: %p flags %#x (%s)\n",
+            output, flags, outputFlagsToString(flags).c_str());
     dprintf(fd, "  Frames written: %lld\n", (long long)mFramesWritten);
     dprintf(fd, "  Suspended frames: %lld\n", (long long)mSuspendedFrames);
     if (mPipeSink.get() != nullptr) {
@@ -1854,7 +1806,7 @@
     }
     if (output != nullptr) {
         dprintf(fd, "  Hal stream dump:\n");
-        (void)output->stream->common.dump(&output->stream->common, fd);
+        (void)output->stream->dump(fd);
     }
 }
 
@@ -1871,7 +1823,8 @@
     ALOGV("  preExit()");
     // FIXME this is using hard-coded strings but in the future, this functionality will be
     //       converted to use audio HAL extensions required to support tunneling
-    mOutput->stream->common.set_parameters(&mOutput->stream->common, "exiting=1");
+    status_t result = mOutput->stream->setParameters(String8("exiting=1"));
+    ALOGE_IF(result != OK, "Error when setting parameters on exit: %d", result);
 }
 
 // PlaybackThread::createTrack_l() must be called with AudioFlinger::mLock held
@@ -1886,8 +1839,9 @@
         audio_session_t sessionId,
         audio_output_flags_t *flags,
         pid_t tid,
-        int uid,
-        status_t *status)
+        uid_t uid,
+        status_t *status,
+        audio_port_handle_t portId)
 {
     size_t frameCount = *pFrameCount;
     sp<Track> track;
@@ -1978,7 +1932,12 @@
             && audio_has_proportional_frames(format) && sharedBuffer == 0) {
         // this must match AudioTrack.cpp calculateMinFrameCount().
         // TODO: Move to a common library
-        uint32_t latencyMs = mOutput->stream->get_latency(mOutput->stream);
+        uint32_t latencyMs = 0;
+        lStatus = mOutput->stream->getLatency(&latencyMs);
+        if (lStatus != OK) {
+            ALOGE("Error when retrieving output stream latency: %d", lStatus);
+            goto Exit;
+        }
         uint32_t minBufCount = latencyMs / ((1000 * mNormalFrameCount) / mSampleRate);
         if (minBufCount < 2) {
             minBufCount = 2;
@@ -2064,7 +2023,7 @@
 
         track = new Track(this, client, streamType, sampleRate, format,
                           channelMask, frameCount, NULL, sharedBuffer,
-                          sessionId, uid, *flags, TrackBase::TYPE_DEFAULT);
+                          sessionId, uid, *flags, TrackBase::TYPE_DEFAULT, portId);
 
         lStatus = track != 0 ? track->initCheck() : (status_t) NO_MEMORY;
         if (lStatus != NO_ERROR) {
@@ -2086,7 +2045,7 @@
             pid_t callingPid = IPCThreadState::self()->getCallingPid();
             // we don't have CAP_SYS_NICE, nor do we want to have it as it's too powerful,
             // so ask activity manager to do this on our behalf
-            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp);
+            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp, true /*isForApp*/);
         }
     }
 
@@ -2109,11 +2068,11 @@
 }
 uint32_t AudioFlinger::PlaybackThread::latency_l() const
 {
-    if (initCheck() == NO_ERROR) {
-        return correctLatency_l(mOutput->stream->get_latency(mOutput->stream));
-    } else {
-        return 0;
+    uint32_t latency;
+    if (initCheck() == NO_ERROR && mOutput->stream->getLatency(&latency) == OK) {
+        return correctLatency_l(latency);
     }
+    return 0;
 }
 
 void AudioFlinger::PlaybackThread::setMasterVolume(float value)
@@ -2130,6 +2089,9 @@
 
 void AudioFlinger::PlaybackThread::setMasterMute(bool muted)
 {
+    if (isDuplicating()) {
+        return;
+    }
     Mutex::Autolock _l(mLock);
     // Don't apply master mute in SW if our HAL can do it for us.
     if (mOutput && mOutput->audioHwDev &&
@@ -2212,9 +2174,6 @@
         track->mResetDone = false;
         track->mPresentationCompleteFrames = 0;
         mActiveTracks.add(track);
-        mWakeLockUids.add(track->uid());
-        mActiveTracksGeneration++;
-        mLatestActiveTrack = track;
         sp<EffectChain> chain = getEffectChain_l(track->sessionId());
         if (chain != 0) {
             ALOGV("addTrack_l() starting track on chain %p for session %d", chain.get(),
@@ -2222,6 +2181,10 @@
             chain->incActiveTrackCnt();
         }
 
+        char buffer[256];
+        track->dump(buffer, ARRAY_SIZE(buffer), false /* active */);
+        mLocalLog.log("addTrack_l    (%p) %s", track.get(), buffer + 4); // log for analysis
+
         status = NO_ERROR;
     }
 
@@ -2247,6 +2210,11 @@
 void AudioFlinger::PlaybackThread::removeTrack_l(const sp<Track>& track)
 {
     track->triggerEvents(AudioSystem::SYNC_EVENT_PRESENTATION_COMPLETE);
+
+    char buffer[256];
+    track->dump(buffer, ARRAY_SIZE(buffer), false /* active */);
+    mLocalLog.log("removeTrack_l (%p) %s", track.get(), buffer + 4); // log for analysis
+
     mTracks.remove(track);
     deleteTrackName_l(track->name());
     // redundant as track is about to be destroyed, for dumpsys only
@@ -2265,27 +2233,14 @@
     }
 }
 
-void AudioFlinger::PlaybackThread::broadcast_l()
-{
-    // Thread could be blocked waiting for async
-    // so signal it to handle state changes immediately
-    // If threadLoop is currently unlocked a signal of mWaitWorkCV will
-    // be lost so we also flag to prevent it blocking on mWaitWorkCV
-    mSignalPending = true;
-    mWaitWorkCV.broadcast();
-}
-
 String8 AudioFlinger::PlaybackThread::getParameters(const String8& keys)
 {
     Mutex::Autolock _l(mLock);
-    if (initCheck() != NO_ERROR) {
-        return String8();
+    String8 out_s8;
+    if (initCheck() == NO_ERROR && mOutput->stream->getParameters(keys, &out_s8) == OK) {
+        return out_s8;
     }
-
-    char *s = mOutput->stream->common.get_parameters(&mOutput->stream->common, keys.string());
-    const String8 out_s8(s);
-    free(s);
-    return out_s8;
+    return String8();
 }
 
 void AudioFlinger::PlaybackThread::ioConfigChanged(audio_io_config_event event, pid_t pid) {
@@ -2314,21 +2269,18 @@
     mAudioFlinger->ioConfigChanged(event, desc, pid);
 }
 
-void AudioFlinger::PlaybackThread::writeCallback()
+void AudioFlinger::PlaybackThread::onWriteReady()
 {
-    ALOG_ASSERT(mCallbackThread != 0);
     mCallbackThread->resetWriteBlocked();
 }
 
-void AudioFlinger::PlaybackThread::drainCallback()
+void AudioFlinger::PlaybackThread::onDrainReady()
 {
-    ALOG_ASSERT(mCallbackThread != 0);
     mCallbackThread->resetDraining();
 }
 
-void AudioFlinger::PlaybackThread::errorCallback()
+void AudioFlinger::PlaybackThread::onError()
 {
-    ALOG_ASSERT(mCallbackThread != 0);
     mCallbackThread->setAsyncError();
 }
 
@@ -2352,30 +2304,6 @@
     }
 }
 
-// static
-int AudioFlinger::PlaybackThread::asyncCallback(stream_callback_event_t event,
-                                                void *param __unused,
-                                                void *cookie)
-{
-    AudioFlinger::PlaybackThread *me = (AudioFlinger::PlaybackThread *)cookie;
-    ALOGV("asyncCallback() event %d", event);
-    switch (event) {
-    case STREAM_CBK_EVENT_WRITE_READY:
-        me->writeCallback();
-        break;
-    case STREAM_CBK_EVENT_DRAIN_READY:
-        me->drainCallback();
-        break;
-    case STREAM_CBK_EVENT_ERROR:
-        me->errorCallback();
-        break;
-    default:
-        ALOGW("asyncCallback() unknown event %d", event);
-        break;
-    }
-    return 0;
-}
-
 void AudioFlinger::PlaybackThread::readOutputParameters_l()
 {
     // unfortunately we have no way of recovering from errors here, hence the LOG_ALWAYS_FATAL
@@ -2392,7 +2320,8 @@
     mChannelCount = audio_channel_count_from_out_mask(mChannelMask);
 
     // Get actual HAL format.
-    mHALFormat = mOutput->stream->common.get_format(&mOutput->stream->common);
+    status_t result = mOutput->stream->getFormat(&mHALFormat);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error when retrieving output stream format: %d", result);
     // Get format from the shim, which will be different than the HAL format
     // if playing compressed audio over HDMI passthrough.
     mFormat = mOutput->getFormat();
@@ -2405,17 +2334,17 @@
                 mFormat);
     }
     mFrameSize = mOutput->getFrameSize();
-    mBufferSize = mOutput->stream->common.get_buffer_size(&mOutput->stream->common);
+    result = mOutput->stream->getBufferSize(&mBufferSize);
+    LOG_ALWAYS_FATAL_IF(result != OK,
+            "Error when retrieving output stream buffer size: %d", result);
     mFrameCount = mBufferSize / mFrameSize;
     if (mFrameCount & 15) {
         ALOGW("HAL output buffer size is %zu frames but AudioMixer requires multiples of 16 frames",
                 mFrameCount);
     }
 
-    if ((mOutput->flags & AUDIO_OUTPUT_FLAG_NON_BLOCKING) &&
-            (mOutput->stream->set_callback != NULL)) {
-        if (mOutput->stream->set_callback(mOutput->stream,
-                                      AudioFlinger::PlaybackThread::asyncCallback, this) == 0) {
+    if (mOutput->flags & AUDIO_OUTPUT_FLAG_NON_BLOCKING) {
+        if (mOutput->stream->setCallback(this) == OK) {
             mUseAsyncWrite = true;
             mCallbackThread = new AudioFlinger::AsyncCallbackThread(this);
         }
@@ -2423,14 +2352,15 @@
 
     mHwSupportsPause = false;
     if (mOutput->flags & AUDIO_OUTPUT_FLAG_DIRECT) {
-        if (mOutput->stream->pause != NULL) {
-            if (mOutput->stream->resume != NULL) {
+        bool supportsPause = false, supportsResume = false;
+        if (mOutput->stream->supportsPauseAndResume(&supportsPause, &supportsResume) == OK) {
+            if (supportsPause && supportsResume) {
                 mHwSupportsPause = true;
-            } else {
+            } else if (supportsPause) {
                 ALOGW("direct output implements pause but not resume");
+            } else if (supportsResume) {
+                ALOGW("direct output implements resume but not pause");
             }
-        } else if (mOutput->stream->resume != NULL) {
-            ALOGW("direct output implements resume but not pause");
         }
     }
     if (!mHwSupportsPause && mOutput->flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) {
@@ -2620,12 +2550,12 @@
 }
 
 // this method must always be called either with ThreadBase mLock held or inside the thread loop
-audio_stream_t* AudioFlinger::PlaybackThread::stream() const
+sp<StreamHalInterface> AudioFlinger::PlaybackThread::stream() const
 {
     if (mOutput == NULL) {
         return NULL;
     }
-    return &mOutput->stream->common;
+    return mOutput->stream;
 }
 
 uint32_t AudioFlinger::PlaybackThread::activeSleepTimeUs() const
@@ -2763,7 +2693,8 @@
 
 void AudioFlinger::PlaybackThread::threadLoop_drain()
 {
-    if (mOutput->stream->drain) {
+    bool supportsDrain = false;
+    if (mOutput->stream->supportsDrain(&supportsDrain) == OK && supportsDrain) {
         ALOGV("draining %s", (mMixerStatus == MIXER_DRAIN_TRACK) ? "early" : "full");
         if (mUseAsyncWrite) {
             ALOGW_IF(mDrainSequence & 1, "threadLoop_drain(): out of sequence drain request");
@@ -2771,9 +2702,8 @@
             ALOG_ASSERT(mCallbackThread != 0);
             mCallbackThread->setDraining(mDrainSequence);
         }
-        mOutput->stream->drain(mOutput->stream,
-            (mMixerStatus == MIXER_DRAIN_TRACK) ? AUDIO_DRAIN_EARLY_NOTIFY
-                                                : AUDIO_DRAIN_ALL);
+        status_t result = mOutput->stream->drain(mMixerStatus == MIXER_DRAIN_TRACK);
+        ALOGE_IF(result != OK, "Error when draining stream: %d", result);
     }
 }
 
@@ -2785,6 +2715,11 @@
             sp<Track> track = mTracks[i];
             track->invalidate();
         }
+        // Clear ActiveTracks to update BatteryNotifier in case active tracks remain.
+        // After we exit there are no more track changes sent to BatteryNotifier
+        // because that requires an active threadLoop.
+        // TODO: should we decActiveTrackCnt() of the cleared track effect chain?
+        mActiveTracks.clear();
     }
 }
 
@@ -2849,9 +2784,14 @@
 status_t AudioFlinger::PlaybackThread::addEffectChain_l(const sp<EffectChain>& chain)
 {
     audio_session_t session = chain->sessionId();
-    int16_t* buffer = reinterpret_cast<int16_t*>(mEffectBufferEnabled
-            ? mEffectBuffer : mSinkBuffer);
-    bool ownsBuffer = false;
+    sp<EffectBufferHalInterface> halInBuffer, halOutBuffer;
+    status_t result = EffectBufferHalInterface::mirror(
+            mEffectBufferEnabled ? mEffectBuffer : mSinkBuffer,
+            mEffectBufferEnabled ? mEffectBufferSize : mSinkBufferSize,
+            &halInBuffer);
+    if (result != OK) return result;
+    halOutBuffer = halInBuffer;
+    int16_t *buffer = reinterpret_cast<int16_t*>(halInBuffer->externalData());
 
     ALOGV("addEffectChain_l() %p on thread %p for session %d", chain.get(), this, session);
     if (session > AUDIO_SESSION_OUTPUT_MIX) {
@@ -2859,10 +2799,13 @@
         // the sink buffer as input
         if (mType != DIRECT) {
             size_t numSamples = mNormalFrameCount * mChannelCount;
-            buffer = new int16_t[numSamples];
-            memset(buffer, 0, numSamples * sizeof(int16_t));
-            ALOGV("addEffectChain_l() creating new input buffer %p session %d", buffer, session);
-            ownsBuffer = true;
+            status_t result = EffectBufferHalInterface::allocate(
+                    numSamples * sizeof(int16_t),
+                    &halInBuffer);
+            if (result != OK) return result;
+            buffer = halInBuffer->audioBuffer()->s16;
+            ALOGV("addEffectChain_l() creating new input buffer %p session %d",
+                    buffer, session);
         }
 
         // Attach all tracks with same session ID to this chain.
@@ -2877,11 +2820,7 @@
         }
 
         // indicate all active tracks in the chain
-        for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) {
-            sp<Track> track = mActiveTracks[i].promote();
-            if (track == 0) {
-                continue;
-            }
+        for (const sp<Track> &track : mActiveTracks) {
             if (session == track->sessionId()) {
                 ALOGV("addEffectChain_l() activating track %p on session %d", track.get(), session);
                 chain->incActiveTrackCnt();
@@ -2889,9 +2828,8 @@
         }
     }
     chain->setThread(this);
-    chain->setInBuffer(buffer, ownsBuffer);
-    chain->setOutBuffer(reinterpret_cast<int16_t*>(mEffectBufferEnabled
-            ? mEffectBuffer : mSinkBuffer));
+    chain->setInBuffer(halInBuffer);
+    chain->setOutBuffer(halOutBuffer);
     // Effect chain for session AUDIO_SESSION_OUTPUT_STAGE is inserted at end of effect
     // chains list in order to be processed last as it contains output stage effects.
     // Effect chain for session AUDIO_SESSION_OUTPUT_MIX is inserted before
@@ -2928,11 +2866,7 @@
         if (chain == mEffectChains[i]) {
             mEffectChains.removeAt(i);
             // detach all active tracks from the chain
-            for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) {
-                sp<Track> track = mActiveTracks[i].promote();
-                if (track == 0) {
-                    continue;
-                }
+            for (const sp<Track> &track : mActiveTracks) {
                 if (session == track->sessionId()) {
                     ALOGV("removeEffectChain_l(): stopping track on chain %p for session Id: %d",
                             chain.get(), session);
@@ -2955,14 +2889,14 @@
 }
 
 status_t AudioFlinger::PlaybackThread::attachAuxEffect(
-        const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId)
+        const sp<AudioFlinger::PlaybackThread::Track>& track, int EffectId)
 {
     Mutex::Autolock _l(mLock);
     return attachAuxEffect_l(track, EffectId);
 }
 
 status_t AudioFlinger::PlaybackThread::attachAuxEffect_l(
-        const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId)
+        const sp<AudioFlinger::PlaybackThread::Track>& track, int EffectId)
 {
     status_t status = NO_ERROR;
 
@@ -2996,6 +2930,8 @@
 
 bool AudioFlinger::PlaybackThread::threadLoop()
 {
+    logWriterTLS = mNBLogWriter.get();
+
     Vector< sp<Track> > tracksToRemove;
 
     mStandbyTimeNs = systemTime();
@@ -3009,8 +2945,6 @@
     // FIXME could this be made local to while loop?
     writeFrames = 0;
 
-    int lastGeneration = 0;
-
     cacheParameters_l();
     mSleepTimeUs = mIdleSleepTimeUs;
 
@@ -3028,10 +2962,20 @@
     // and then that string will be logged at the next convenient opportunity.
     const char *logString = NULL;
 
-    checkSilentMode_l();
+    // Estimated time for next buffer to be written to hal. This is used only on
+    // suspended mode (for now) to help schedule the wait time until next iteration.
+    nsecs_t timeLoopNextNs = 0;
 
+    checkSilentMode_l();
+#if 0
+    int z = 0; // used in logFormat example
+#endif
     while (!exitPending())
     {
+        // Log merge requests are performed during AudioFlinger binder transactions, but
+        // that does not cover audio playback. It's requested here for that reason.
+        mAudioFlinger->requestLogMerge();
+
         cpuStats.sample(myName);
 
         Vector< sp<EffectChain> > effectChains;
@@ -3108,10 +3052,9 @@
                     mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_SERVER] = mLastWriteTime == -1
                             ? systemTime() : mLastWriteTime;
                 }
-                const size_t size = mActiveTracks.size();
-                for (size_t i = 0; i < size; ++i) {
-                    sp<Track> t = mActiveTracks[i].promote();
-                    if (t != 0 && !t->isFastTrack()) {
+
+                for (const sp<Track> &t : mActiveTracks) {
+                    if (!t->isFastTrack()) {
                         t->updateTrackFrameInfo(
                                 t->mAudioTrackServerProxy->framesReleased(),
                                 mFramesWritten,
@@ -3119,7 +3062,17 @@
                     }
                 }
             }
-
+#if 0
+            // logFormat example
+            if (z % 100 == 0) {
+                timespec ts;
+                clock_gettime(CLOCK_MONOTONIC, &ts);
+                LOGT("This is an integer %d, this is a float %f, this is my "
+                    "pid %p %% %s %t", 42, 3.14, "and this is a timestamp", ts);
+                LOGT("A deceptive null-terminated string %\0");
+            }
+            ++z;
+#endif
             saveOutputTracks();
             if (mSignalPending) {
                 // A signal was raised while we were unlocked
@@ -3132,11 +3085,14 @@
                 if (!keepWakeLock()) {
                     releaseWakeLock_l();
                     released = true;
-                    mWakeLockUids.clear();
-                    mActiveTracksGeneration++;
                 }
-                ALOGV("wait async completion");
-                mWaitWorkCV.wait(mLock);
+
+                const int64_t waitNs = computeWaitTimeNs_l();
+                ALOGV("wait async completion (wait time: %lld)", (long long)waitNs);
+                status_t status = mWaitWorkCV.waitRelative(mLock, waitNs);
+                if (status == TIMED_OUT) {
+                    mSignalPending = true; // if timeout recheck everything
+                }
                 ALOGV("async completion/wake");
                 if (released) {
                     acquireWakeLock_l();
@@ -3167,8 +3123,6 @@
                     }
 
                     releaseWakeLock_l();
-                    mWakeLockUids.clear();
-                    mActiveTracksGeneration++;
                     // wait until we have something to do...
                     ALOGV("%s going to sleep", myName.string());
                     mWaitWorkCV.wait(mLock);
@@ -3193,12 +3147,7 @@
             // mMixerStatusIgnoringFastTracks is also updated internally
             mMixerStatus = prepareTracks_l(&tracksToRemove);
 
-            // compare with previously applied list
-            if (lastGeneration != mActiveTracksGeneration) {
-                // update wakelock
-                updateWakeLockUids_l(mWakeLockUids);
-                lastGeneration = mActiveTracksGeneration;
-            }
+            mActiveTracks.updatePowerState(this);
 
             // prevent any changes in effect chain list and in each effect chain
             // during mixing and effect process as the audio buffers could be deleted
@@ -3382,6 +3331,29 @@
             } else {
                 ATRACE_BEGIN("sleep");
                 Mutex::Autolock _l(mLock);
+                // suspended requires accurate metering of sleep time.
+                if (isSuspended()) {
+                    // advance by expected sleepTime
+                    timeLoopNextNs += microseconds((nsecs_t)mSleepTimeUs);
+                    const nsecs_t nowNs = systemTime();
+
+                    // compute expected next time vs current time.
+                    // (negative deltas are treated as delays).
+                    nsecs_t deltaNs = timeLoopNextNs - nowNs;
+                    if (deltaNs < -kMaxNextBufferDelayNs) {
+                        // Delays longer than the max allowed trigger a reset.
+                        ALOGV("DelayNs: %lld, resetting timeLoopNextNs", (long long) deltaNs);
+                        deltaNs = microseconds((nsecs_t)mSleepTimeUs);
+                        timeLoopNextNs = nowNs + deltaNs;
+                    } else if (deltaNs < 0) {
+                        // Delays within the max delay allowed: zero the delta/sleepTime
+                        // to help the system catch up in the next iteration(s)
+                        ALOGV("DelayNs: %lld, catching-up", (long long) deltaNs);
+                        deltaNs = 0;
+                    }
+                    // update sleep time (which is >= 0)
+                    mSleepTimeUs = deltaNs / 1000;
+                }
                 if (!mSignalPending && mConfigEvents.isEmpty() && !exitPending()) {
                     mWaitWorkCV.waitRelative(mLock, microseconds((nsecs_t)mSleepTimeUs));
                 }
@@ -3416,8 +3388,6 @@
     }
 
     releaseWakeLock();
-    mWakeLockUids.clear();
-    mActiveTracksGeneration++;
 
     ALOGV("Thread %p type %d exiting", this, mType);
     return false;
@@ -3431,8 +3401,6 @@
         for (size_t i=0 ; i<count ; i++) {
             const sp<Track>& track = tracksToRemove.itemAt(i);
             mActiveTracks.remove(track);
-            mWakeLockUids.remove(track->uid());
-            mActiveTracksGeneration++;
             ALOGV("removeTracks_l removing track on session %d", track->sessionId());
             sp<EffectChain> chain = getEffectChain_l(track->sessionId());
             if (chain != 0) {
@@ -3442,6 +3410,10 @@
             }
             if (track->isTerminated()) {
                 removeTrack_l(track);
+            } else { // inactive but not terminated
+                char buffer[256];
+                track->dump(buffer, ARRAY_SIZE(buffer), false /* active */);
+                mLocalLog.log("removeTracks_l(%p) %s", track.get(), buffer + 4);
             }
         }
     }
@@ -3458,11 +3430,9 @@
         }
         return status;
     }
-    if ((mType == OFFLOAD || mType == DIRECT)
-            && mOutput != NULL && mOutput->stream->get_presentation_position) {
+    if ((mType == OFFLOAD || mType == DIRECT) && mOutput != NULL) {
         uint64_t position64;
-        int ret = mOutput->getPresentationPosition(&position64, &timestamp.mTime);
-        if (ret == 0) {
+        if (mOutput->getPresentationPosition(&position64, &timestamp.mTime) == OK) {
             timestamp.mPosition = (uint32_t)position64;
             return NO_ERROR;
         }
@@ -3529,14 +3499,13 @@
     mOutDevice = type;
     mPatch = *patch;
 
-    if (mOutput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        audio_hw_device_t *hwDevice = mOutput->audioHwDev->hwDevice();
-        status = hwDevice->create_audio_patch(hwDevice,
-                                               patch->num_sources,
-                                               patch->sources,
-                                               patch->num_sinks,
-                                               patch->sinks,
-                                               handle);
+    if (mOutput->audioHwDev->supportsAudioPatches()) {
+        sp<DeviceHalInterface> hwDevice = mOutput->audioHwDev->hwDevice();
+        status = hwDevice->createAudioPatch(patch->num_sources,
+                                            patch->sources,
+                                            patch->num_sinks,
+                                            patch->sinks,
+                                            handle);
     } else {
         char *address;
         if (strcmp(patch->sinks[0].ext.device.address, "") != 0) {
@@ -3549,9 +3518,8 @@
         }
         AudioParameter param = AudioParameter(String8(address));
         free(address);
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), (int)type);
-        status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                param.toString().string());
+        param.addInt(String8(AudioParameter::keyRouting), (int)type);
+        status = mOutput->stream->setParameters(param.toString());
         *handle = AUDIO_PATCH_HANDLE_NONE;
     }
     if (configChanged) {
@@ -3581,14 +3549,13 @@
 
     mOutDevice = AUDIO_DEVICE_NONE;
 
-    if (mOutput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        audio_hw_device_t *hwDevice = mOutput->audioHwDev->hwDevice();
-        status = hwDevice->release_audio_patch(hwDevice, handle);
+    if (mOutput->audioHwDev->supportsAudioPatches()) {
+        sp<DeviceHalInterface> hwDevice = mOutput->audioHwDev->hwDevice();
+        status = hwDevice->releaseAudioPatch(handle);
     } else {
         AudioParameter param;
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), 0);
-        status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                param.toString().string());
+        param.addInt(String8(AudioParameter::keyRouting), 0);
+        status = mOutput->stream->setParameters(param.toString());
     }
     return status;
 }
@@ -3662,9 +3629,17 @@
         break;
     case FastMixer_Static:
     case FastMixer_Dynamic:
-        initFastMixer = mFrameCount < mNormalFrameCount;
+        // FastMixer was designed to operate with a HAL that pulls at a regular rate,
+        // where the period is less than an experimentally determined threshold that can be
+        // scheduled reliably with CFS. However, the BT A2DP HAL is
+        // bursty (does not pull at a regular rate) and so cannot operate with FastMixer.
+        initFastMixer = mFrameCount < mNormalFrameCount
+                && (mOutDevice & AUDIO_DEVICE_OUT_ALL_A2DP) == 0;
         break;
     }
+    ALOGW_IF(initFastMixer == false && mFrameCount < mNormalFrameCount,
+            "FastMixer is preferred for this sink as frameCount %zu is less than threshold %zu",
+            mFrameCount, mNormalFrameCount);
     if (initFastMixer) {
         audio_format_t fastMixerFormat;
         if (mMixerBufferEnabled && mEffectBufferEnabled) {
@@ -3763,7 +3738,8 @@
         // start the fast mixer
         mFastMixer->run("FastMixer", PRIORITY_URGENT_AUDIO);
         pid_t tid = mFastMixer->getTid();
-        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastMixer);
+        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastMixer, false);
+        stream()->setHalThreadPriority(kPriorityFastMixer);
 
 #ifdef AUDIO_WATCHDOG
         // create and start the watchdog
@@ -3893,6 +3869,15 @@
         FastMixerStateQueue *sq = mFastMixer->sq();
         FastMixerState *state = sq->begin();
         if (!(state->mCommand & FastMixerState::IDLE)) {
+            // Report any frames trapped in the Monopipe
+            MonoPipe *monoPipe = (MonoPipe *)mPipeSink.get();
+            const long long pipeFrames = monoPipe->maxFrames() - monoPipe->availableToWrite();
+            mLocalLog.log("threadLoop_standby: framesWritten:%lld  suspendedFrames:%lld  "
+                    "monoPipeWritten:%lld  monoPipeLeft:%lld",
+                    (long long)mFramesWritten, (long long)mSuspendedFrames,
+                    (long long)mPipeSink->framesWritten(), pipeFrames);
+            mLocalLog.log("threadLoop_standby: %s", mTimestamp.toString().c_str());
+
             state->mCommand = FastMixerState::COLD_IDLE;
             state->mColdFutexAddr = &mFastMixerFutex;
             state->mColdGen++;
@@ -4047,19 +4032,18 @@
     FastMixerState *state = NULL;
     bool didModify = false;
     FastMixerStateQueue::block_t block = FastMixerStateQueue::BLOCK_UNTIL_PUSHED;
+    bool coldIdle = false;
     if (mFastMixer != 0) {
         sq = mFastMixer->sq();
         state = sq->begin();
+        coldIdle = state->mCommand == FastMixerState::COLD_IDLE;
     }
 
     mMixerBufferValid = false;  // mMixerBuffer has no valid data until appropriate tracks found.
     mEffectBufferValid = false; // mEffectBuffer has no valid data until tracks found.
 
     for (size_t i=0 ; i<count ; i++) {
-        const sp<Track> t = mActiveTracks[i].promote();
-        if (t == 0) {
-            continue;
-        }
+        const sp<Track> t = mActiveTracks[i];
 
         // this const just means the local variable doesn't change
         Track* const track = t.get();
@@ -4154,8 +4138,11 @@
                 // We have consumed all the buffers of this track.
                 // This would be incomplete if we auto-paused on underrun
                 {
-                    size_t audioHALFrames =
-                            (mOutput->stream->get_latency(mOutput->stream)*mSampleRate) / 1000;
+                    uint32_t latency = 0;
+                    status_t result = mOutput->stream->getLatency(&latency);
+                    ALOGE_IF(result != OK,
+                            "Error when retrieving output stream latency: %d", result);
+                    size_t audioHALFrames = (latency * mSampleRate) / 1000;
                     int64_t framesWritten = mBytesWritten / mFrameSize;
                     if (!(mStandby || track->presentationComplete(framesWritten, audioHALFrames))) {
                         // track stays in active list until presentation is complete
@@ -4194,7 +4181,11 @@
                 }
                 // cache the combined master volume and stream type volume for fast mixer; this
                 // lacks any synchronization or barrier so VolumeProvider may read a stale value
-                track->mCachedVolume = masterVolume * mStreamTypes[track->streamType()].volume;
+                const float vh = track->getVolumeHandler()->getVolume(
+                        track->mAudioTrackServerProxy->framesReleased()).first;
+                track->mCachedVolume = masterVolume
+                        * mStreamTypes[track->streamType()].volume
+                        * vh;
                 ++fastTracks;
             } else {
                 // was it previously active?
@@ -4323,7 +4314,7 @@
                 // read original volumes with volume control
                 float typeVolume = mStreamTypes[track->streamType()].volume;
                 float v = masterVolume * typeVolume;
-                AudioTrackServerProxy *proxy = track->mAudioTrackServerProxy;
+                sp<AudioTrackServerProxy> proxy = track->mAudioTrackServerProxy;
                 gain_minifloat_packed_t vlr = proxy->getVolumeLR();
                 vlf = float_from_gain(gain_minifloat_unpack_left(vlr));
                 vrf = float_from_gain(gain_minifloat_unpack_right(vlr));
@@ -4336,9 +4327,11 @@
                     ALOGV("Track right volume out of range: %.3g", vrf);
                     vrf = GAIN_FLOAT_UNITY;
                 }
-                // now apply the master volume and stream type volume
-                vlf *= v;
-                vrf *= v;
+                const float vh = track->getVolumeHandler()->getVolume(
+                        track->mAudioTrackServerProxy->framesReleased()).first;
+                // now apply the master volume and stream type volume and shaper volume
+                vlf *= v * vh;
+                vrf *= v * vh;
                 // assuming master volume and stream type volume each go up to 1.0,
                 // then derive vl and vr as U8.24 versions for the effect chain
                 const float scaleto8_24 = MAX_GAIN_INT * MAX_GAIN_INT;
@@ -4539,7 +4532,15 @@
     }
     if (sq != NULL) {
         sq->end(didModify);
-        sq->push(block);
+        // No need to block if the FastMixer is in COLD_IDLE as the FastThread
+        // is not active. (We BLOCK_UNTIL_ACKED when entering COLD_IDLE
+        // when bringing the output sink into standby.)
+        //
+        // We will get the latest FastMixer state when we come out of COLD_IDLE.
+        //
+        // This occurs with BT suspend when we idle the FastMixer with
+        // active tracks, which may be added or removed.
+        sq->push(coldIdle ? FastMixerStateQueue::BLOCK_NEVER : block);
     }
 #ifdef AUDIO_WATCHDOG
     if (pauseAudioWatchdog && mAudioWatchdog != 0) {
@@ -4552,11 +4553,7 @@
         size_t i = __builtin_ctz(resetMask);
         ALOG_ASSERT(i < count);
         resetMask &= ~(1 << i);
-        sp<Track> t = mActiveTracks[i].promote();
-        if (t == 0) {
-            continue;
-        }
-        Track* track = t.get();
+        sp<Track> track = mActiveTracks[i];
         ALOG_ASSERT(track->isFastTrack() && track->isStopped());
         track->reset();
     }
@@ -4608,7 +4605,7 @@
 {
     uint32_t trackCount = 0;
     for (size_t i = 0; i < mTracks.size() ; i++) {
-        if (mTracks[i]->uid() == (int)uid) {
+        if (mTracks[i]->uid() == uid) {
             trackCount++;
         }
     }
@@ -4711,14 +4708,12 @@
     }
 
     if (status == NO_ERROR) {
-        status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                keyValuePair.string());
+        status = mOutput->stream->setParameters(keyValuePair);
         if (!mStandby && status == INVALID_OPERATION) {
             mOutput->standby();
             mStandby = true;
             mBytesWritten = 0;
-            status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                   keyValuePair.string());
+            status = mOutput->stream->setParameters(keyValuePair);
         }
         if (status == NO_ERROR && reconfig) {
             readOutputParameters_l();
@@ -4747,34 +4742,42 @@
     dprintf(fd, "  AudioMixer tracks: 0x%08x\n", mAudioMixer->trackNames());
     dprintf(fd, "  Master mono: %s\n", mMasterMono ? "on" : "off");
 
-    // Make a non-atomic copy of fast mixer dump state so it won't change underneath us
-    // while we are dumping it.  It may be inconsistent, but it won't mutate!
-    // This is a large object so we place it on the heap.
-    // FIXME 25972958: Need an intelligent copy constructor that does not touch unused pages.
-    const FastMixerDumpState *copy = new FastMixerDumpState(mFastMixerDumpState);
-    copy->dump(fd);
-    delete copy;
+    if (hasFastMixer()) {
+        dprintf(fd, "  FastMixer thread %p tid=%d", mFastMixer.get(), mFastMixer->getTid());
+
+        // Make a non-atomic copy of fast mixer dump state so it won't change underneath us
+        // while we are dumping it.  It may be inconsistent, but it won't mutate!
+        // This is a large object so we place it on the heap.
+        // FIXME 25972958: Need an intelligent copy constructor that does not touch unused pages.
+        const FastMixerDumpState *copy = new FastMixerDumpState(mFastMixerDumpState);
+        copy->dump(fd);
+        delete copy;
 
 #ifdef STATE_QUEUE_DUMP
-    // Similar for state queue
-    StateQueueObserverDump observerCopy = mStateQueueObserverDump;
-    observerCopy.dump(fd);
-    StateQueueMutatorDump mutatorCopy = mStateQueueMutatorDump;
-    mutatorCopy.dump(fd);
+        // Similar for state queue
+        StateQueueObserverDump observerCopy = mStateQueueObserverDump;
+        observerCopy.dump(fd);
+        StateQueueMutatorDump mutatorCopy = mStateQueueMutatorDump;
+        mutatorCopy.dump(fd);
 #endif
 
+#ifdef AUDIO_WATCHDOG
+        if (mAudioWatchdog != 0) {
+            // Make a non-atomic copy of audio watchdog dump so it won't change underneath us
+            AudioWatchdogDump wdCopy = mAudioWatchdogDump;
+            wdCopy.dump(fd);
+        }
+#endif
+
+    } else {
+        dprintf(fd, "  No FastMixer\n");
+    }
+
 #ifdef TEE_SINK
     // Write the tee output to a .wav file
     dumpTee(fd, mTeeSource, mId);
 #endif
 
-#ifdef AUDIO_WATCHDOG
-    if (mAudioWatchdog != 0) {
-        // Make a non-atomic copy of audio watchdog dump so it won't change underneath us
-        AudioWatchdogDump wdCopy = mAudioWatchdogDump;
-        wdCopy.dump(fd);
-    }
-#endif
 }
 
 uint32_t AudioFlinger::MixerThread::idleSleepTimeUs() const
@@ -4812,6 +4815,7 @@
         ThreadBase::type_t type, bool systemReady)
     :   PlaybackThread(audioFlinger, output, id, device, type, systemReady)
         // mLeftVolFloat, mRightVolFloat
+        , mVolumeShaperActive(false)
 {
 }
 
@@ -4828,7 +4832,15 @@
     } else {
         float typeVolume = mStreamTypes[track->streamType()].volume;
         float v = mMasterVolume * typeVolume;
-        AudioTrackServerProxy *proxy = track->mAudioTrackServerProxy;
+        sp<AudioTrackServerProxy> proxy = track->mAudioTrackServerProxy;
+
+        // Get volumeshaper scaling
+        std::pair<float /* volume */, bool /* active */>
+            vh = track->getVolumeHandler()->getVolume(
+                    track->mAudioTrackServerProxy->framesReleased());
+        v *= vh.first;
+        mVolumeShaperActive = vh.second;
+
         gain_minifloat_packed_t vlr = proxy->getVolumeLR();
         left = float_from_gain(gain_minifloat_unpack_left(vlr));
         if (left > GAIN_FLOAT_UNITY) {
@@ -4859,9 +4871,8 @@
                 left = (float)vl / (1 << 24);
                 right = (float)vr / (1 << 24);
             }
-            if (mOutput->stream->set_volume) {
-                mOutput->stream->set_volume(mOutput->stream, left, right);
-            }
+            status_t result = mOutput->stream->setVolume(left, right);
+            ALOGE_IF(result != OK, "Error when setting output stream volume: %d", result);
         }
     }
 }
@@ -4869,7 +4880,7 @@
 void AudioFlinger::DirectOutputThread::onAddNewTrack_l()
 {
     sp<Track> previousTrack = mPreviousTrack.promote();
-    sp<Track> latestTrack = mLatestActiveTrack.promote();
+    sp<Track> latestTrack = mActiveTracks.getLatest();
 
     if (previousTrack != 0 && latestTrack != 0) {
         if (mType == DIRECT) {
@@ -4895,13 +4906,7 @@
     bool doHwResume = false;
 
     // find out which tracks need to be processed
-    for (size_t i = 0; i < count; i++) {
-        sp<Track> t = mActiveTracks[i].promote();
-        // The track died recently
-        if (t == 0) {
-            continue;
-        }
-
+    for (const sp<Track> &t : mActiveTracks) {
         if (t->isInvalid()) {
             ALOGW("An invalidated track shouldn't be in active list");
             tracksToRemove->add(t);
@@ -4916,7 +4921,7 @@
         // In theory an older track could underrun and restart after the new one starts
         // but as we only care about the transition phase between two tracks on a
         // direct output, it is not a problem to ignore the underrun case.
-        sp<Track> l = mLatestActiveTrack.promote();
+        sp<Track> l = mActiveTracks.getLatest();
         bool last = l.get() == track;
 
         if (track->isPausing()) {
@@ -5071,13 +5076,15 @@
     // if resume is received before pause is executed.
     if (mHwSupportsPause && !mStandby &&
             (doHwPause || (mFlushPending && !mHwPaused && (count != 0)))) {
-        mOutput->stream->pause(mOutput->stream);
+        status_t result = mOutput->stream->pause();
+        ALOGE_IF(result != OK, "Error when pausing output stream: %d", result);
     }
     if (mFlushPending) {
         flushHw_l();
     }
     if (mHwSupportsPause && !mStandby && doHwResume) {
-        mOutput->stream->resume(mOutput->stream);
+        status_t result = mOutput->stream->resume();
+        ALOGE_IF(result != OK, "Error when resuming output stream: %d", result);
     }
     // remove all the tracks that need to be...
     removeTracks_l(*tracksToRemove);
@@ -5218,14 +5225,12 @@
         }
     }
     if (status == NO_ERROR) {
-        status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                keyValuePair.string());
+        status = mOutput->stream->setParameters(keyValuePair);
         if (!mStandby && status == INVALID_OPERATION) {
             mOutput->standby();
             mStandby = true;
             mBytesWritten = 0;
-            status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                   keyValuePair.string());
+            status = mOutput->stream->setParameters(keyValuePair);
         }
         if (status == NO_ERROR && reconfig) {
             readOutputParameters_l();
@@ -5292,6 +5297,13 @@
     mFlushPending = false;
 }
 
+int64_t AudioFlinger::DirectOutputThread::computeWaitTimeNs_l() const {
+    // If a VolumeShaper is active, we must wake up periodically to update volume.
+    const int64_t NS_PER_MS = 1000000;
+    return mVolumeShaperActive ?
+            kMinNormalSinkBufferSizeMs * NS_PER_MS : PlaybackThread::computeWaitTimeNs_l();
+}
+
 // ----------------------------------------------------------------------------
 
 AudioFlinger::AsyncCallbackThread::AsyncCallbackThread(
@@ -5450,12 +5462,7 @@
     ALOGV("OffloadThread::prepareTracks_l active tracks %zu", count);
 
     // find out which tracks need to be processed
-    for (size_t i = 0; i < count; i++) {
-        sp<Track> t = mActiveTracks[i].promote();
-        // The track died recently
-        if (t == 0) {
-            continue;
-        }
+    for (const sp<Track> &t : mActiveTracks) {
         Track* const track = t.get();
 #ifdef VERY_VERY_VERBOSE_LOGGING
         audio_track_cblk_t* cblk = track->cblk();
@@ -5464,7 +5471,7 @@
         // In theory an older track could underrun and restart after the new one starts
         // but as we only care about the transition phase between two tracks on a
         // direct output, it is not a problem to ignore the underrun case.
-        sp<Track> l = mLatestActiveTrack.promote();
+        sp<Track> l = mActiveTracks.getLatest();
         bool last = l.get() == track;
 
         if (track->isInvalid()) {
@@ -5612,8 +5619,11 @@
                 // Drain has completed or we are in standby, signal presentation complete
                 if (!(mDrainSequence & 1) || !last || mStandby) {
                     track->mState = TrackBase::STOPPED;
-                    size_t audioHALFrames =
-                            (mOutput->stream->get_latency(mOutput->stream)*mSampleRate) / 1000;
+                    uint32_t latency = 0;
+                    status_t result = mOutput->stream->getLatency(&latency);
+                    ALOGE_IF(result != OK,
+                            "Error when retrieving output stream latency: %d", result);
+                    size_t audioHALFrames = (latency * mSampleRate) / 1000;
                     int64_t framesWritten =
                             mBytesWritten / mOutput->getFrameSize();
                     track->presentationComplete(framesWritten, audioHALFrames);
@@ -5625,16 +5635,15 @@
                 // fill a buffer, then remove it from active list.
                 if (--(track->mRetryCount) <= 0) {
                     bool running = false;
-                    if (mOutput->stream->get_presentation_position != nullptr) {
-                        uint64_t position = 0;
-                        struct timespec unused;
-                        // The running check restarts the retry counter at least once.
-                        int ret = mOutput->stream->get_presentation_position(
-                                mOutput->stream, &position, &unused);
-                        if (ret == NO_ERROR && position != mOffloadUnderrunPosition) {
-                            running = true;
-                            mOffloadUnderrunPosition = position;
-                        }
+                    uint64_t position = 0;
+                    struct timespec unused;
+                    // The running check restarts the retry counter at least once.
+                    status_t ret = mOutput->stream->getPresentationPosition(&position, &unused);
+                    if (ret == NO_ERROR && position != mOffloadUnderrunPosition) {
+                        running = true;
+                        mOffloadUnderrunPosition = position;
+                    }
+                    if (ret == NO_ERROR) {
                         ALOGVV("underrun counter, running(%d): %lld vs %lld", running,
                                 (long long)position, (long long)mOffloadUnderrunPosition);
                     }
@@ -5644,7 +5653,7 @@
                         ALOGV("OffloadThread: BUFFER TIMEOUT: remove(%d) from active list",
                                 track->name());
                         tracksToRemove->add(track);
-                        // indicate to client process that the track was disabled because of underrun;
+                        // tell client process that the track was disabled because of underrun;
                         // it will then automatically call start() when data is available
                         track->disable();
                     }
@@ -5662,13 +5671,15 @@
     // before flush and then resume HW. This can happen in case of pause/flush/resume
     // if resume is received before pause is executed.
     if (!mStandby && (doHwPause || (mFlushPending && !mHwPaused && (count != 0)))) {
-        mOutput->stream->pause(mOutput->stream);
+        status_t result = mOutput->stream->pause();
+        ALOGE_IF(result != OK, "Error when pausing output stream: %d", result);
     }
     if (mFlushPending) {
         flushHw_l();
     }
     if (!mStandby && doHwResume) {
-        mOutput->stream->resume(mOutput->stream);
+        status_t result = mOutput->stream->resume();
+        ALOGE_IF(result != OK, "Error when resuming output stream: %d", result);
     }
 
     // remove all the tracks that need to be...
@@ -5904,6 +5915,7 @@
     MixerThread::cacheParameters_l();
 }
 
+
 // ----------------------------------------------------------------------------
 //      Record
 // ----------------------------------------------------------------------------
@@ -5919,8 +5931,8 @@
 #endif
                                          ) :
     ThreadBase(audioFlinger, id, outDevice, inDevice, RECORD, systemReady),
-    mInput(input), mActiveTracksGen(0), mRsmpInBuffer(NULL),
-    // mRsmpInFrames and mRsmpInFramesP2 are set by readInputParameters_l()
+    mInput(input), mRsmpInBuffer(NULL),
+    // mRsmpInFrames, mRsmpInFramesP2, and mRsmpInFramesOA are set by readInputParameters_l()
     mRsmpInRear(0)
 #ifdef TEE_SINK
     , mTeeSink(teeSink)
@@ -5972,7 +5984,8 @@
     if (initFastCapture) {
         // create a Pipe for FastCapture to write to, and for us and fast tracks to read from
         NBAIO_Format format = mInputSource->format();
-        size_t pipeFramesP2 = roundup(mSampleRate / 25);    // double-buffering of 20 ms each
+        // quadruple-buffering of 20 ms each; this ensures we can sleep for 20ms in RecordThread
+        size_t pipeFramesP2 = roundup(4 * FMS_20 * mSampleRate / 1000);
         size_t pipeSize = pipeFramesP2 * Format_frameSize(format);
         void *pipeBuffer;
         const sp<MemoryDealer> roHeap(readOnlyHeap());
@@ -6029,7 +6042,8 @@
         // start the fast capture
         mFastCapture->run("FastCapture", ANDROID_PRIORITY_URGENT_AUDIO);
         pid_t tid = mFastCapture->getTid();
-        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastCapture);
+        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastCapture, false);
+        stream()->setHalThreadPriority(kPriorityFastCapture);
 #ifdef AUDIO_WATCHDOG
         // FIXME
 #endif
@@ -6068,6 +6082,18 @@
     run(mThreadName, PRIORITY_URGENT_AUDIO);
 }
 
+void AudioFlinger::RecordThread::preExit()
+{
+    ALOGV("  preExit()");
+    Mutex::Autolock _l(mLock);
+    for (size_t i = 0; i < mTracks.size(); i++) {
+        sp<RecordTrack> track = mTracks[i];
+        track->invalidate();
+    }
+    mActiveTracks.clear();
+    mStartStopCond.broadcast();
+}
+
 bool AudioFlinger::RecordThread::threadLoop()
 {
     nsecs_t lastWarning = 0;
@@ -6076,25 +6102,9 @@
 
 reacquire_wakelock:
     sp<RecordTrack> activeTrack;
-    int activeTracksGen;
     {
         Mutex::Autolock _l(mLock);
-        size_t size = mActiveTracks.size();
-        activeTracksGen = mActiveTracksGen;
-        if (size > 0) {
-            // FIXME an arbitrary choice
-            activeTrack = mActiveTracks[0];
-            acquireWakeLock_l(activeTrack->uid());
-            if (size > 1) {
-                SortedVector<int> tmp;
-                for (size_t i = 0; i < size; i++) {
-                    tmp.add(mActiveTracks[i]->uid());
-                }
-                updateWakeLockUids_l(tmp);
-            }
-        } else {
-            acquireWakeLock_l(-1);
-        }
+        acquireWakeLock_l();
     }
 
     // used to request a deferred sleep, to be executed later while mutex is unlocked
@@ -6146,15 +6156,6 @@
                 goto reacquire_wakelock;
             }
 
-            if (mActiveTracksGen != activeTracksGen) {
-                activeTracksGen = mActiveTracksGen;
-                SortedVector<int> tmp;
-                for (size_t i = 0; i < size; i++) {
-                    tmp.add(mActiveTracks[i]->uid());
-                }
-                updateWakeLockUids_l(tmp);
-            }
-
             bool doBroadcast = false;
             bool allStopped = true;
             for (size_t i = 0; i < size; ) {
@@ -6167,7 +6168,6 @@
                     }
                     removeTrack_l(activeTrack);
                     mActiveTracks.remove(activeTrack);
-                    mActiveTracksGen++;
                     size--;
                     continue;
                 }
@@ -6177,7 +6177,6 @@
 
                 case TrackBase::PAUSING:
                     mActiveTracks.remove(activeTrack);
-                    mActiveTracksGen++;
                     doBroadcast = true;
                     size--;
                     continue;
@@ -6217,6 +6216,8 @@
                 }
             }
 
+            mActiveTracks.updatePowerState(this);
+
             if (allStopped) {
                 standbyIfNotAlreadyInStandby();
             }
@@ -6302,20 +6303,41 @@
         // If an NBAIO source is present, use it to read the normal capture's data
         if (mPipeSource != 0) {
             size_t framesToRead = mBufferSize / mFrameSize;
+            framesToRead = min(mRsmpInFramesOA - rear, mRsmpInFramesP2 / 2);
             framesRead = mPipeSource->read((uint8_t*)mRsmpInBuffer + rear * mFrameSize,
                     framesToRead);
-            if (framesRead == 0) {
-                // since pipe is non-blocking, simulate blocking input
-                sleepUs = (framesToRead * 1000000LL) / mSampleRate;
+            // since pipe is non-blocking, simulate blocking input by waiting for 1/2 of
+            // buffer size or at least for 20ms.
+            size_t sleepFrames = max(
+                    min(mPipeFramesP2, mRsmpInFramesP2) / 2, FMS_20 * mSampleRate / 1000);
+            if (framesRead <= (ssize_t) sleepFrames) {
+                sleepUs = (sleepFrames * 1000000LL) / mSampleRate;
+            }
+            if (framesRead < 0) {
+                status_t status = (status_t) framesRead;
+                switch (status) {
+                case OVERRUN:
+                    ALOGW("overrun on read from pipe");
+                    framesRead = 0;
+                    break;
+                case NEGOTIATE:
+                    ALOGE("re-negotiation is needed");
+                    framesRead = -1;  // Will cause an attempt to recover.
+                    break;
+                default:
+                    ALOGE("unknown error %d on read from pipe", status);
+                    break;
+                }
             }
         // otherwise use the HAL / AudioStreamIn directly
         } else {
             ATRACE_BEGIN("read");
-            ssize_t bytesRead = mInput->stream->read(mInput->stream,
-                    (uint8_t*)mRsmpInBuffer + rear * mFrameSize, mBufferSize);
+            size_t bytesRead;
+            status_t result = mInput->stream->read(
+                    (uint8_t*)mRsmpInBuffer + rear * mFrameSize, mBufferSize, &bytesRead);
             ATRACE_END();
-            if (bytesRead < 0) {
-                framesRead = bytesRead;
+            if (result < 0) {
+                framesRead = result;
             } else {
                 framesRead = bytesRead / mFrameSize;
             }
@@ -6327,10 +6349,9 @@
         mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_SERVER] = systemTime();
 
         // Update server timestamp with kernel stats
-        if (mInput->stream->get_capture_position != nullptr
-                && mPipeSource.get() == nullptr /* don't obtain for FastCapture, could block */) {
+        if (mPipeSource.get() == nullptr /* don't obtain for FastCapture, could block */) {
             int64_t position, time;
-            int ret = mInput->stream->get_capture_position(mInput->stream, &position, &time);
+            int ret = mInput->stream->getCapturePosition(&position, &time);
             if (ret == NO_ERROR) {
                 mTimestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL] = position;
                 mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL] = time;
@@ -6495,7 +6516,6 @@
             track->invalidate();
         }
         mActiveTracks.clear();
-        mActiveTracksGen++;
         mStartStopCond.broadcast();
     }
 
@@ -6539,7 +6559,18 @@
             sq->end(false /*didModify*/);
         }
     }
-    mInput->stream->common.standby(&mInput->stream->common);
+    status_t result = mInput->stream->standby();
+    ALOGE_IF(result != OK, "Error when putting input stream into standby: %d", result);
+
+    // If going into standby, flush the pipe source.
+    if (mPipeSource.get() != nullptr) {
+        const ssize_t flushed = mPipeSource->flush();
+        if (flushed > 0) {
+            ALOGV("Input standby flushed PipeSource %zd frames", flushed);
+            mTimestamp.mPosition[ExtendedTimestamp::LOCATION_SERVER] += flushed;
+            mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_SERVER] = systemTime();
+        }
+    }
 }
 
 // RecordThread::createRecordTrack_l() must be called with AudioFlinger::mLock held
@@ -6551,10 +6582,11 @@
         size_t *pFrameCount,
         audio_session_t sessionId,
         size_t *notificationFrames,
-        int uid,
+        uid_t uid,
         audio_input_flags_t *flags,
         pid_t tid,
-        status_t *status)
+        status_t *status,
+        audio_port_handle_t portId)
 {
     size_t frameCount = *pFrameCount;
     sp<RecordTrack> track;
@@ -6662,7 +6694,7 @@
 
         track = new RecordTrack(this, client, sampleRate,
                       format, channelMask, frameCount, NULL, sessionId, uid,
-                      *flags, TrackBase::TYPE_DEFAULT);
+                      *flags, TrackBase::TYPE_DEFAULT, portId);
 
         lStatus = track->initCheck();
         if (lStatus != NO_ERROR) {
@@ -6682,7 +6714,7 @@
             pid_t callingPid = IPCThreadState::self()->getCallingPid();
             // we don't have CAP_SYS_NICE, nor do we want to have it as it's too powerful,
             // so ask activity manager to do this on our behalf
-            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp);
+            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp, true);
         }
     }
 
@@ -6738,7 +6770,6 @@
         //      or using a separate command thread
         recordTrack->mState = TrackBase::STARTING_1;
         mActiveTracks.add(recordTrack);
-        mActiveTracksGen++;
         status_t status = NO_ERROR;
         if (recordTrack->isExternalTrack()) {
             mLock.unlock();
@@ -6747,7 +6778,6 @@
             // FIXME should verify that recordTrack is still in mActiveTracks
             if (status != NO_ERROR) {
                 mActiveTracks.remove(recordTrack);
-                mActiveTracksGen++;
                 recordTrack->clearSyncStartEvent();
                 ALOGV("RecordThread::start error %d", status);
                 return status;
@@ -6797,7 +6827,7 @@
 bool AudioFlinger::RecordThread::stop(RecordThread::RecordTrack* recordTrack) {
     ALOGV("RecordThread::stop");
     AutoMutex _l(mLock);
-    if (mActiveTracks.indexOf(recordTrack) != 0 || recordTrack->mState == TrackBase::PAUSING) {
+    if (mActiveTracks.indexOf(recordTrack) < 0 || recordTrack->mState == TrackBase::PAUSING) {
         return false;
     }
     // note that threadLoop may still be processing the track at this point [without lock]
@@ -6811,7 +6841,7 @@
     // FIXME incorrect usage of wait: no explicit predicate or loop
     mStartStopCond.wait(mLock);
     // if we have been restarted, recordTrack is in mActiveTracks here
-    if (exitPending() || mActiveTracks.indexOf(recordTrack) != 0) {
+    if (exitPending() || mActiveTracks.indexOf(recordTrack) < 0) {
         ALOGV("Record stopped OK");
         return true;
     }
@@ -6878,10 +6908,12 @@
 
 void AudioFlinger::RecordThread::dumpInternals(int fd, const Vector<String16>& args)
 {
-    dprintf(fd, "\nInput thread %p:\n", this);
-
     dumpBase(fd, args);
 
+    AudioStreamIn *input = mInput;
+    audio_input_flags_t flags = input != NULL ? input->flags : AUDIO_INPUT_FLAG_NONE;
+    dprintf(fd, "  AudioStreamIn: %p flags %#x (%s)\n",
+            input, flags, inputFlagsToString(flags).c_str());
     if (mActiveTracks.size() == 0) {
         dprintf(fd, "  No active record clients\n");
     }
@@ -7040,252 +7072,6 @@
     buffer->frameCount = 0;
 }
 
-AudioFlinger::RecordThread::RecordBufferConverter::RecordBufferConverter(
-        audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
-        uint32_t srcSampleRate,
-        audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
-        uint32_t dstSampleRate) :
-            mSrcChannelMask(AUDIO_CHANNEL_INVALID), // updateParameters will set following vars
-            // mSrcFormat
-            // mSrcSampleRate
-            // mDstChannelMask
-            // mDstFormat
-            // mDstSampleRate
-            // mSrcChannelCount
-            // mDstChannelCount
-            // mDstFrameSize
-            mBuf(NULL), mBufFrames(0), mBufFrameSize(0),
-            mResampler(NULL),
-            mIsLegacyDownmix(false),
-            mIsLegacyUpmix(false),
-            mRequiresFloat(false),
-            mInputConverterProvider(NULL)
-{
-    (void)updateParameters(srcChannelMask, srcFormat, srcSampleRate,
-            dstChannelMask, dstFormat, dstSampleRate);
-}
-
-AudioFlinger::RecordThread::RecordBufferConverter::~RecordBufferConverter() {
-    free(mBuf);
-    delete mResampler;
-    delete mInputConverterProvider;
-}
-
-size_t AudioFlinger::RecordThread::RecordBufferConverter::convert(void *dst,
-        AudioBufferProvider *provider, size_t frames)
-{
-    if (mInputConverterProvider != NULL) {
-        mInputConverterProvider->setBufferProvider(provider);
-        provider = mInputConverterProvider;
-    }
-
-    if (mResampler == NULL) {
-        ALOGVV("NO RESAMPLING sampleRate:%u mSrcFormat:%#x mDstFormat:%#x",
-                mSrcSampleRate, mSrcFormat, mDstFormat);
-
-        AudioBufferProvider::Buffer buffer;
-        for (size_t i = frames; i > 0; ) {
-            buffer.frameCount = i;
-            status_t status = provider->getNextBuffer(&buffer);
-            if (status != OK || buffer.frameCount == 0) {
-                frames -= i; // cannot fill request.
-                break;
-            }
-            // format convert to destination buffer
-            convertNoResampler(dst, buffer.raw, buffer.frameCount);
-
-            dst = (int8_t*)dst + buffer.frameCount * mDstFrameSize;
-            i -= buffer.frameCount;
-            provider->releaseBuffer(&buffer);
-        }
-    } else {
-         ALOGVV("RESAMPLING mSrcSampleRate:%u mDstSampleRate:%u mSrcFormat:%#x mDstFormat:%#x",
-                 mSrcSampleRate, mDstSampleRate, mSrcFormat, mDstFormat);
-
-         // reallocate buffer if needed
-         if (mBufFrameSize != 0 && mBufFrames < frames) {
-             free(mBuf);
-             mBufFrames = frames;
-             (void)posix_memalign(&mBuf, 32, mBufFrames * mBufFrameSize);
-         }
-        // resampler accumulates, but we only have one source track
-        memset(mBuf, 0, frames * mBufFrameSize);
-        frames = mResampler->resample((int32_t*)mBuf, frames, provider);
-        // format convert to destination buffer
-        convertResampler(dst, mBuf, frames);
-    }
-    return frames;
-}
-
-status_t AudioFlinger::RecordThread::RecordBufferConverter::updateParameters(
-        audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
-        uint32_t srcSampleRate,
-        audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
-        uint32_t dstSampleRate)
-{
-    // quick evaluation if there is any change.
-    if (mSrcFormat == srcFormat
-            && mSrcChannelMask == srcChannelMask
-            && mSrcSampleRate == srcSampleRate
-            && mDstFormat == dstFormat
-            && mDstChannelMask == dstChannelMask
-            && mDstSampleRate == dstSampleRate) {
-        return NO_ERROR;
-    }
-
-    ALOGV("RecordBufferConverter updateParameters srcMask:%#x dstMask:%#x"
-            "  srcFormat:%#x dstFormat:%#x  srcRate:%u dstRate:%u",
-            srcChannelMask, dstChannelMask, srcFormat, dstFormat, srcSampleRate, dstSampleRate);
-    const bool valid =
-            audio_is_input_channel(srcChannelMask)
-            && audio_is_input_channel(dstChannelMask)
-            && audio_is_valid_format(srcFormat) && audio_is_linear_pcm(srcFormat)
-            && audio_is_valid_format(dstFormat) && audio_is_linear_pcm(dstFormat)
-            && (srcSampleRate <= dstSampleRate * AUDIO_RESAMPLER_DOWN_RATIO_MAX)
-            ; // no upsampling checks for now
-    if (!valid) {
-        return BAD_VALUE;
-    }
-
-    mSrcFormat = srcFormat;
-    mSrcChannelMask = srcChannelMask;
-    mSrcSampleRate = srcSampleRate;
-    mDstFormat = dstFormat;
-    mDstChannelMask = dstChannelMask;
-    mDstSampleRate = dstSampleRate;
-
-    // compute derived parameters
-    mSrcChannelCount = audio_channel_count_from_in_mask(srcChannelMask);
-    mDstChannelCount = audio_channel_count_from_in_mask(dstChannelMask);
-    mDstFrameSize = mDstChannelCount * audio_bytes_per_sample(mDstFormat);
-
-    // do we need to resample?
-    delete mResampler;
-    mResampler = NULL;
-    if (mSrcSampleRate != mDstSampleRate) {
-        mResampler = AudioResampler::create(AUDIO_FORMAT_PCM_FLOAT,
-                mSrcChannelCount, mDstSampleRate);
-        mResampler->setSampleRate(mSrcSampleRate);
-        mResampler->setVolume(AudioMixer::UNITY_GAIN_FLOAT, AudioMixer::UNITY_GAIN_FLOAT);
-    }
-
-    // are we running legacy channel conversion modes?
-    mIsLegacyDownmix = (mSrcChannelMask == AUDIO_CHANNEL_IN_STEREO
-                            || mSrcChannelMask == AUDIO_CHANNEL_IN_FRONT_BACK)
-                   && mDstChannelMask == AUDIO_CHANNEL_IN_MONO;
-    mIsLegacyUpmix = mSrcChannelMask == AUDIO_CHANNEL_IN_MONO
-                   && (mDstChannelMask == AUDIO_CHANNEL_IN_STEREO
-                            || mDstChannelMask == AUDIO_CHANNEL_IN_FRONT_BACK);
-
-    // do we need to process in float?
-    mRequiresFloat = mResampler != NULL || mIsLegacyDownmix || mIsLegacyUpmix;
-
-    // do we need a staging buffer to convert for destination (we can still optimize this)?
-    // we use mBufFrameSize > 0 to indicate both frame size as well as buffer necessity
-    if (mResampler != NULL) {
-        mBufFrameSize = max(mSrcChannelCount, FCC_2)
-                * audio_bytes_per_sample(AUDIO_FORMAT_PCM_FLOAT);
-    } else if (mIsLegacyUpmix || mIsLegacyDownmix) { // legacy modes always float
-        mBufFrameSize = mDstChannelCount * audio_bytes_per_sample(AUDIO_FORMAT_PCM_FLOAT);
-    } else if (mSrcChannelMask != mDstChannelMask && mDstFormat != mSrcFormat) {
-        mBufFrameSize = mDstChannelCount * audio_bytes_per_sample(mSrcFormat);
-    } else {
-        mBufFrameSize = 0;
-    }
-    mBufFrames = 0; // force the buffer to be resized.
-
-    // do we need an input converter buffer provider to give us float?
-    delete mInputConverterProvider;
-    mInputConverterProvider = NULL;
-    if (mRequiresFloat && mSrcFormat != AUDIO_FORMAT_PCM_FLOAT) {
-        mInputConverterProvider = new ReformatBufferProvider(
-                audio_channel_count_from_in_mask(mSrcChannelMask),
-                mSrcFormat,
-                AUDIO_FORMAT_PCM_FLOAT,
-                256 /* provider buffer frame count */);
-    }
-
-    // do we need a remixer to do channel mask conversion
-    if (!mIsLegacyDownmix && !mIsLegacyUpmix && mSrcChannelMask != mDstChannelMask) {
-        (void) memcpy_by_index_array_initialization_from_channel_mask(
-                mIdxAry, ARRAY_SIZE(mIdxAry), mDstChannelMask, mSrcChannelMask);
-    }
-    return NO_ERROR;
-}
-
-void AudioFlinger::RecordThread::RecordBufferConverter::convertNoResampler(
-        void *dst, const void *src, size_t frames)
-{
-    // src is native type unless there is legacy upmix or downmix, whereupon it is float.
-    if (mBufFrameSize != 0 && mBufFrames < frames) {
-        free(mBuf);
-        mBufFrames = frames;
-        (void)posix_memalign(&mBuf, 32, mBufFrames * mBufFrameSize);
-    }
-    // do we need to do legacy upmix and downmix?
-    if (mIsLegacyUpmix || mIsLegacyDownmix) {
-        void *dstBuf = mBuf != NULL ? mBuf : dst;
-        if (mIsLegacyUpmix) {
-            upmix_to_stereo_float_from_mono_float((float *)dstBuf,
-                    (const float *)src, frames);
-        } else /*mIsLegacyDownmix */ {
-            downmix_to_mono_float_from_stereo_float((float *)dstBuf,
-                    (const float *)src, frames);
-        }
-        if (mBuf != NULL) {
-            memcpy_by_audio_format(dst, mDstFormat, mBuf, AUDIO_FORMAT_PCM_FLOAT,
-                    frames * mDstChannelCount);
-        }
-        return;
-    }
-    // do we need to do channel mask conversion?
-    if (mSrcChannelMask != mDstChannelMask) {
-        void *dstBuf = mBuf != NULL ? mBuf : dst;
-        memcpy_by_index_array(dstBuf, mDstChannelCount,
-                src, mSrcChannelCount, mIdxAry, audio_bytes_per_sample(mSrcFormat), frames);
-        if (dstBuf == dst) {
-            return; // format is the same
-        }
-    }
-    // convert to destination buffer
-    const void *convertBuf = mBuf != NULL ? mBuf : src;
-    memcpy_by_audio_format(dst, mDstFormat, convertBuf, mSrcFormat,
-            frames * mDstChannelCount);
-}
-
-void AudioFlinger::RecordThread::RecordBufferConverter::convertResampler(
-        void *dst, /*not-a-const*/ void *src, size_t frames)
-{
-    // src buffer format is ALWAYS float when entering this routine
-    if (mIsLegacyUpmix) {
-        ; // mono to stereo already handled by resampler
-    } else if (mIsLegacyDownmix
-            || (mSrcChannelMask == mDstChannelMask && mSrcChannelCount == 1)) {
-        // the resampler outputs stereo for mono input channel (a feature?)
-        // must convert to mono
-        downmix_to_mono_float_from_stereo_float((float *)src,
-                (const float *)src, frames);
-    } else if (mSrcChannelMask != mDstChannelMask) {
-        // convert to mono channel again for channel mask conversion (could be skipped
-        // with further optimization).
-        if (mSrcChannelCount == 1) {
-            downmix_to_mono_float_from_stereo_float((float *)src,
-                (const float *)src, frames);
-        }
-        // convert to destination format (in place, OK as float is larger than other types)
-        if (mDstFormat != AUDIO_FORMAT_PCM_FLOAT) {
-            memcpy_by_audio_format(src, mDstFormat, src, AUDIO_FORMAT_PCM_FLOAT,
-                    frames * mSrcChannelCount);
-        }
-        // channel convert and save to dst
-        memcpy_by_index_array(dst, mDstChannelCount,
-                src, mSrcChannelCount, mIdxAry, audio_bytes_per_sample(mDstFormat), frames);
-        return;
-    }
-    // convert to destination format and save to dst
-    memcpy_by_audio_format(dst, mDstFormat, src, AUDIO_FORMAT_PCM_FLOAT,
-            frames * mDstChannelCount);
-}
 
 bool AudioFlinger::RecordThread::checkForNewParameter_l(const String8& keyValuePair,
                                                         status_t& status)
@@ -7382,22 +7168,22 @@
     }
 
     if (status == NO_ERROR) {
-        status = mInput->stream->common.set_parameters(&mInput->stream->common,
-                keyValuePair.string());
+        status = mInput->stream->setParameters(keyValuePair);
         if (status == INVALID_OPERATION) {
             inputStandBy();
-            status = mInput->stream->common.set_parameters(&mInput->stream->common,
-                    keyValuePair.string());
+            status = mInput->stream->setParameters(keyValuePair);
         }
         if (reconfig) {
-            if (status == BAD_VALUE &&
-                audio_is_linear_pcm(mInput->stream->common.get_format(&mInput->stream->common)) &&
-                audio_is_linear_pcm(reqFormat) &&
-                (mInput->stream->common.get_sample_rate(&mInput->stream->common)
-                        <= (AUDIO_RESAMPLER_DOWN_RATIO_MAX * samplingRate)) &&
-                audio_channel_count_from_in_mask(
-                        mInput->stream->common.get_channels(&mInput->stream->common)) <= FCC_8) {
-                status = NO_ERROR;
+            if (status == BAD_VALUE) {
+                uint32_t sRate;
+                audio_channel_mask_t channelMask;
+                audio_format_t format;
+                if (mInput->stream->getAudioProperties(&sRate, &channelMask, &format) == OK &&
+                        audio_is_linear_pcm(format) && audio_is_linear_pcm(reqFormat) &&
+                        sRate <= (AUDIO_RESAMPLER_DOWN_RATIO_MAX * samplingRate) &&
+                        audio_channel_count_from_in_mask(channelMask) <= FCC_8) {
+                    status = NO_ERROR;
+                }
             }
             if (status == NO_ERROR) {
                 readInputParameters_l();
@@ -7412,14 +7198,13 @@
 String8 AudioFlinger::RecordThread::getParameters(const String8& keys)
 {
     Mutex::Autolock _l(mLock);
-    if (initCheck() != NO_ERROR) {
-        return String8();
+    if (initCheck() == NO_ERROR) {
+        String8 out_s8;
+        if (mInput->stream->getParameters(keys, &out_s8) == OK) {
+            return out_s8;
+        }
     }
-
-    char *s = mInput->stream->common.get_parameters(&mInput->stream->common, keys.string());
-    const String8 out_s8(s);
-    free(s);
-    return out_s8;
+    return String8();
 }
 
 void AudioFlinger::RecordThread::ioConfigChanged(audio_io_config_event event, pid_t pid) {
@@ -7448,19 +7233,16 @@
 
 void AudioFlinger::RecordThread::readInputParameters_l()
 {
-    mSampleRate = mInput->stream->common.get_sample_rate(&mInput->stream->common);
-    mChannelMask = mInput->stream->common.get_channels(&mInput->stream->common);
+    status_t result = mInput->stream->getAudioProperties(&mSampleRate, &mChannelMask, &mHALFormat);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving audio properties from HAL: %d", result);
     mChannelCount = audio_channel_count_from_in_mask(mChannelMask);
-    if (mChannelCount > FCC_8) {
-        ALOGE("HAL channel count %d > %d", mChannelCount, FCC_8);
-    }
-    mHALFormat = mInput->stream->common.get_format(&mInput->stream->common);
+    LOG_ALWAYS_FATAL_IF(mChannelCount > FCC_8, "HAL channel count %d > %d", mChannelCount, FCC_8);
     mFormat = mHALFormat;
-    if (!audio_is_linear_pcm(mFormat)) {
-        ALOGE("HAL format %#x is not linear pcm", mFormat);
-    }
-    mFrameSize = audio_stream_in_frame_size(mInput->stream);
-    mBufferSize = mInput->stream->common.get_buffer_size(&mInput->stream->common);
+    LOG_ALWAYS_FATAL_IF(!audio_is_linear_pcm(mFormat), "HAL format %#x is not linear pcm", mFormat);
+    result = mInput->stream->getFrameSize(&mFrameSize);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving frame size from HAL: %d", result);
+    result = mInput->stream->getBufferSize(&mBufferSize);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving buffer size from HAL: %d", result);
     mFrameCount = mBufferSize / mFrameSize;
     // This is the formula for calculating the temporary buffer size.
     // With 7 HAL buffers, we can guarantee ability to down-sample the input by ratio of 6:1 to
@@ -7483,9 +7265,10 @@
     // The current value is higher than necessary.  However it should not add to latency.
 
     // Over-allocate beyond mRsmpInFramesP2 to permit a HAL read past end of buffer
-    size_t bufferSize = (mRsmpInFramesP2 + mFrameCount - 1) * mFrameSize;
-    (void)posix_memalign(&mRsmpInBuffer, 32, bufferSize);
-    memset(mRsmpInBuffer, 0, bufferSize); // if posix_memalign fails, will segv here.
+    mRsmpInFramesOA = mRsmpInFramesP2 + mFrameCount - 1;
+    (void)posix_memalign(&mRsmpInBuffer, 32, mRsmpInFramesOA * mFrameSize);
+    // if posix_memalign fails, will segv here.
+    memset(mRsmpInBuffer, 0, mRsmpInFramesOA * mFrameSize);
 
     // AudioRecord mSampleRate and mChannelCount are constant due to AudioRecord API constraints.
     // But if thread's mSampleRate or mChannelCount changes, how will that affect active tracks?
@@ -7494,11 +7277,11 @@
 uint32_t AudioFlinger::RecordThread::getInputFramesLost()
 {
     Mutex::Autolock _l(mLock);
-    if (initCheck() != NO_ERROR) {
-        return 0;
+    uint32_t result;
+    if (initCheck() == NO_ERROR && mInput->stream->getInputFramesLost(&result) == OK) {
+        return result;
     }
-
-    return mInput->stream->get_input_frames_lost(mInput->stream);
+    return 0;
 }
 
 // hasAudioSession_l() must be called with ThreadBase::mLock held
@@ -7545,12 +7328,12 @@
 }
 
 // this method must always be called either with ThreadBase mLock held or inside the thread loop
-audio_stream_t* AudioFlinger::RecordThread::stream() const
+sp<StreamHalInterface> AudioFlinger::RecordThread::stream() const
 {
     if (mInput == NULL) {
         return NULL;
     }
-    return &mInput->stream->common;
+    return mInput->stream;
 }
 
 status_t AudioFlinger::RecordThread::addEffectChain_l(const sp<EffectChain>& chain)
@@ -7620,14 +7403,13 @@
         }
     }
 
-    if (mInput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        audio_hw_device_t *hwDevice = mInput->audioHwDev->hwDevice();
-        status = hwDevice->create_audio_patch(hwDevice,
-                                               patch->num_sources,
-                                               patch->sources,
-                                               patch->num_sinks,
-                                               patch->sinks,
-                                               handle);
+    if (mInput->audioHwDev->supportsAudioPatches()) {
+        sp<DeviceHalInterface> hwDevice = mInput->audioHwDev->hwDevice();
+        status = hwDevice->createAudioPatch(patch->num_sources,
+                                            patch->sources,
+                                            patch->num_sinks,
+                                            patch->sinks,
+                                            handle);
     } else {
         char *address;
         if (strcmp(patch->sources[0].ext.device.address, "") != 0) {
@@ -7639,12 +7421,11 @@
         }
         AudioParameter param = AudioParameter(String8(address));
         free(address);
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING),
+        param.addInt(String8(AudioParameter::keyRouting),
                      (int)patch->sources[0].ext.device.type);
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_INPUT_SOURCE),
+        param.addInt(String8(AudioParameter::keyInputSource),
                                          (int)patch->sinks[0].ext.mix.usecase.source);
-        status = mInput->stream->common.set_parameters(&mInput->stream->common,
-                param.toString().string());
+        status = mInput->stream->setParameters(param.toString());
         *handle = AUDIO_PATCH_HANDLE_NONE;
     }
 
@@ -7662,14 +7443,13 @@
 
     mInDevice = AUDIO_DEVICE_NONE;
 
-    if (mInput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        audio_hw_device_t *hwDevice = mInput->audioHwDev->hwDevice();
-        status = hwDevice->release_audio_patch(hwDevice, handle);
+    if (mInput->audioHwDev->supportsAudioPatches()) {
+        sp<DeviceHalInterface> hwDevice = mInput->audioHwDev->hwDevice();
+        status = hwDevice->releaseAudioPatch(handle);
     } else {
         AudioParameter param;
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), 0);
-        status = mInput->stream->common.set_parameters(&mInput->stream->common,
-                param.toString().string());
+        param.addInt(String8(AudioParameter::keyRouting), 0);
+        status = mInput->stream->setParameters(param.toString());
     }
     return status;
 }
@@ -7694,4 +7474,919 @@
     config->ext.mix.usecase.source = mAudioSource;
 }
 
+// ----------------------------------------------------------------------------
+//      Mmap
+// ----------------------------------------------------------------------------
+
+AudioFlinger::MmapThreadHandle::MmapThreadHandle(const sp<MmapThread>& thread)
+    : mThread(thread)
+{
+}
+
+AudioFlinger::MmapThreadHandle::~MmapThreadHandle()
+{
+    MmapThread *thread = mThread.get();
+    // clear our strong reference before disconnecting the thread: the last strong reference
+    // will be removed when closeInput/closeOutput is executed upon call from audio policy manager
+    // and the thread removed from mMMapThreads list causing the thread destruction.
+    mThread.clear();
+    if (thread != nullptr) {
+        thread->disconnect();
+    }
+}
+
+status_t AudioFlinger::MmapThreadHandle::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info)
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->createMmapBuffer(minSizeFrames, info);
+}
+
+status_t AudioFlinger::MmapThreadHandle::getMmapPosition(struct audio_mmap_position *position)
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->getMmapPosition(position);
+}
+
+status_t AudioFlinger::MmapThreadHandle::start(const MmapStreamInterface::Client& client,
+        audio_port_handle_t *handle)
+
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->start(client, handle);
+}
+
+status_t AudioFlinger::MmapThreadHandle::stop(audio_port_handle_t handle)
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->stop(handle);
+}
+
+status_t AudioFlinger::MmapThreadHandle::standby()
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->standby();
+}
+
+
+AudioFlinger::MmapThread::MmapThread(
+        const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+        AudioHwDevice *hwDev, sp<StreamHalInterface> stream,
+        audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady)
+    : ThreadBase(audioFlinger, id, outDevice, inDevice, MMAP, systemReady),
+      mHalStream(stream), mHalDevice(hwDev->hwDevice()), mAudioHwDev(hwDev)
+{
+    mStandby = true;
+    readHalParameters_l();
+}
+
+AudioFlinger::MmapThread::~MmapThread()
+{
+    releaseWakeLock_l();
+}
+
+void AudioFlinger::MmapThread::onFirstRef()
+{
+    run(mThreadName, ANDROID_PRIORITY_URGENT_AUDIO);
+}
+
+void AudioFlinger::MmapThread::disconnect()
+{
+    for (const sp<MmapTrack> &t : mActiveTracks) {
+        stop(t->portId());
+    }
+    // this will cause the destruction of this thread.
+    if (isOutput()) {
+        AudioSystem::releaseOutput(mId, streamType(), mSessionId);
+    } else {
+        AudioSystem::releaseInput(mId, mSessionId);
+    }
+}
+
+
+void AudioFlinger::MmapThread::configure(const audio_attributes_t *attr,
+                                                audio_stream_type_t streamType __unused,
+                                                audio_session_t sessionId,
+                                                const sp<MmapStreamCallback>& callback,
+                                                audio_port_handle_t portId)
+{
+    mAttr = *attr;
+    mSessionId = sessionId;
+    mCallback = callback;
+    mPortId = portId;
+}
+
+status_t AudioFlinger::MmapThread::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info)
+{
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+    mStandby = true;
+    acquireWakeLock();
+    return mHalStream->createMmapBuffer(minSizeFrames, info);
+}
+
+status_t AudioFlinger::MmapThread::getMmapPosition(struct audio_mmap_position *position)
+{
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+    return mHalStream->getMmapPosition(position);
+}
+
+status_t AudioFlinger::MmapThread::start(const MmapStreamInterface::Client& client,
+                                         audio_port_handle_t *handle)
+{
+    ALOGV("%s clientUid %d mStandby %d", __FUNCTION__, client.clientUid, mStandby);
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+
+    status_t ret;
+    audio_session_t sessionId;
+    audio_port_handle_t portId;
+
+    if (mActiveTracks.size() == 0) {
+        // for the first track, reuse portId and session allocated when the stream was opened
+        ret = mHalStream->start();
+        if (ret != NO_ERROR) {
+            ALOGE("%s: error mHalStream->start() = %d for first track", __FUNCTION__, ret);
+            return ret;
+        }
+        portId = mPortId;
+        sessionId = mSessionId;
+        mStandby = false;
+    } else {
+        // for other tracks than first one, get a new port ID from APM.
+        sessionId = (audio_session_t)mAudioFlinger->newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
+        audio_io_handle_t io;
+        if (isOutput()) {
+            audio_config_t config = AUDIO_CONFIG_INITIALIZER;
+            config.sample_rate = mSampleRate;
+            config.channel_mask = mChannelMask;
+            config.format = mFormat;
+            audio_stream_type_t stream = streamType();
+            audio_output_flags_t flags =
+                    (audio_output_flags_t)(AUDIO_OUTPUT_FLAG_MMAP_NOIRQ | AUDIO_OUTPUT_FLAG_DIRECT);
+            ret = AudioSystem::getOutputForAttr(&mAttr, &io,
+                                                sessionId,
+                                                &stream,
+                                                client.clientUid,
+                                                &config,
+                                                flags,
+                                                AUDIO_PORT_HANDLE_NONE,
+                                                &portId);
+        } else {
+            audio_config_base_t config;
+            config.sample_rate = mSampleRate;
+            config.channel_mask = mChannelMask;
+            config.format = mFormat;
+            ret = AudioSystem::getInputForAttr(&mAttr, &io,
+                                                  sessionId,
+                                                  client.clientPid,
+                                                  client.clientUid,
+                                                  &config,
+                                                  AUDIO_INPUT_FLAG_MMAP_NOIRQ,
+                                                  AUDIO_PORT_HANDLE_NONE,
+                                                  &portId);
+        }
+        // APM should not chose a different input or output stream for the same set of attributes
+        // and audo configuration
+        if (ret != NO_ERROR || io != mId) {
+            ALOGE("%s: error getting output or input from APM (error %d, io %d expected io %d)",
+                  __FUNCTION__, ret, io, mId);
+            return BAD_VALUE;
+        }
+    }
+
+    if (isOutput()) {
+        ret = AudioSystem::startOutput(mId, streamType(), sessionId);
+    } else {
+        ret = AudioSystem::startInput(mId, sessionId);
+    }
+
+    // abort if start is rejected by audio policy manager
+    if (ret != NO_ERROR) {
+        ALOGE("%s: error start rejected by AudioPolicyManager = %d", __FUNCTION__, ret);
+        if (mActiveTracks.size() != 0) {
+            if (isOutput()) {
+                AudioSystem::releaseOutput(mId, streamType(), sessionId);
+            } else {
+                AudioSystem::releaseInput(mId, sessionId);
+            }
+        } else {
+            mHalStream->stop();
+        }
+        return PERMISSION_DENIED;
+    }
+
+    sp<MmapTrack> track = new MmapTrack(this, mSampleRate, mFormat, mChannelMask, sessionId,
+                                        client.clientUid, portId);
+
+    mActiveTracks.add(track);
+    sp<EffectChain> chain = getEffectChain_l(sessionId);
+    if (chain != 0) {
+        chain->setStrategy(AudioSystem::getStrategyForStream(streamType()));
+        chain->incTrackCnt();
+        chain->incActiveTrackCnt();
+    }
+
+    *handle = portId;
+
+    broadcast_l();
+
+    ALOGV("%s DONE handle %d stream %p", __FUNCTION__, portId, mHalStream.get());
+
+    return NO_ERROR;
+}
+
+status_t AudioFlinger::MmapThread::stop(audio_port_handle_t handle)
+{
+    ALOGV("%s handle %d", __FUNCTION__, handle);
+
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+
+    sp<MmapTrack> track;
+    for (const sp<MmapTrack> &t : mActiveTracks) {
+        if (handle == t->portId()) {
+            track = t;
+            break;
+        }
+    }
+    if (track == 0) {
+        return BAD_VALUE;
+    }
+
+    mActiveTracks.remove(track);
+
+    if (isOutput()) {
+        AudioSystem::stopOutput(mId, streamType(), track->sessionId());
+        if (mActiveTracks.size() != 0) {
+            AudioSystem::releaseOutput(mId, streamType(), track->sessionId());
+        }
+    } else {
+        AudioSystem::stopInput(mId, track->sessionId());
+        if (mActiveTracks.size() != 0) {
+            AudioSystem::releaseInput(mId, track->sessionId());
+        }
+    }
+
+    sp<EffectChain> chain = getEffectChain_l(track->sessionId());
+    if (chain != 0) {
+        chain->decActiveTrackCnt();
+        chain->decTrackCnt();
+    }
+
+    broadcast_l();
+
+    if (mActiveTracks.size() == 0) {
+        mHalStream->stop();
+    }
+    return NO_ERROR;
+}
+
+status_t AudioFlinger::MmapThread::standby()
+{
+    ALOGV("%s", __FUNCTION__);
+
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+    if (mActiveTracks.size() != 0) {
+        return INVALID_OPERATION;
+    }
+    mHalStream->standby();
+    mStandby = true;
+    releaseWakeLock();
+    return NO_ERROR;
+}
+
+
+void AudioFlinger::MmapThread::readHalParameters_l()
+{
+    status_t result = mHalStream->getAudioProperties(&mSampleRate, &mChannelMask, &mHALFormat);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving audio properties from HAL: %d", result);
+    mFormat = mHALFormat;
+    LOG_ALWAYS_FATAL_IF(!audio_is_linear_pcm(mFormat), "HAL format %#x is not linear pcm", mFormat);
+    result = mHalStream->getFrameSize(&mFrameSize);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving frame size from HAL: %d", result);
+    result = mHalStream->getBufferSize(&mBufferSize);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving buffer size from HAL: %d", result);
+    mFrameCount = mBufferSize / mFrameSize;
+}
+
+bool AudioFlinger::MmapThread::threadLoop()
+{
+    checkSilentMode_l();
+
+    const String8 myName(String8::format("thread %p type %d TID %d", this, mType, gettid()));
+
+    while (!exitPending())
+    {
+        Mutex::Autolock _l(mLock);
+        Vector< sp<EffectChain> > effectChains;
+
+        if (mSignalPending) {
+            // A signal was raised while we were unlocked
+            mSignalPending = false;
+        } else {
+            if (mConfigEvents.isEmpty()) {
+                // we're about to wait, flush the binder command buffer
+                IPCThreadState::self()->flushCommands();
+
+                if (exitPending()) {
+                    break;
+                }
+
+                // wait until we have something to do...
+                ALOGV("%s going to sleep", myName.string());
+                mWaitWorkCV.wait(mLock);
+                ALOGV("%s waking up", myName.string());
+
+                checkSilentMode_l();
+
+                continue;
+            }
+        }
+
+        processConfigEvents_l();
+
+        processVolume_l();
+
+        checkInvalidTracks_l();
+
+        mActiveTracks.updatePowerState(this);
+
+        lockEffectChains_l(effectChains);
+        for (size_t i = 0; i < effectChains.size(); i ++) {
+            effectChains[i]->process_l();
+        }
+        // enable changes in effect chain
+        unlockEffectChains(effectChains);
+        // Effect chains will be actually deleted here if they were removed from
+        // mEffectChains list during mixing or effects processing
+    }
+
+    threadLoop_exit();
+
+    if (!mStandby) {
+        threadLoop_standby();
+        mStandby = true;
+    }
+
+    ALOGV("Thread %p type %d exiting", this, mType);
+    return false;
+}
+
+// checkForNewParameter_l() must be called with ThreadBase::mLock held
+bool AudioFlinger::MmapThread::checkForNewParameter_l(const String8& keyValuePair,
+                                                              status_t& status)
+{
+    AudioParameter param = AudioParameter(keyValuePair);
+    int value;
+    if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) {
+        // forward device change to effects that have requested to be
+        // aware of attached audio device.
+        if (value != AUDIO_DEVICE_NONE) {
+            mOutDevice = value;
+            for (size_t i = 0; i < mEffectChains.size(); i++) {
+                mEffectChains[i]->setDevice_l(mOutDevice);
+            }
+        }
+    }
+    status = mHalStream->setParameters(keyValuePair);
+
+    return false;
+}
+
+String8 AudioFlinger::MmapThread::getParameters(const String8& keys)
+{
+    Mutex::Autolock _l(mLock);
+    String8 out_s8;
+    if (initCheck() == NO_ERROR && mHalStream->getParameters(keys, &out_s8) == OK) {
+        return out_s8;
+    }
+    return String8();
+}
+
+void AudioFlinger::MmapThread::ioConfigChanged(audio_io_config_event event, pid_t pid) {
+    sp<AudioIoDescriptor> desc = new AudioIoDescriptor();
+
+    desc->mIoHandle = mId;
+
+    switch (event) {
+    case AUDIO_INPUT_OPENED:
+    case AUDIO_INPUT_CONFIG_CHANGED:
+    case AUDIO_OUTPUT_OPENED:
+    case AUDIO_OUTPUT_CONFIG_CHANGED:
+        desc->mPatch = mPatch;
+        desc->mChannelMask = mChannelMask;
+        desc->mSamplingRate = mSampleRate;
+        desc->mFormat = mFormat;
+        desc->mFrameCount = mFrameCount;
+        desc->mFrameCountHAL = mFrameCount;
+        desc->mLatency = 0;
+        break;
+
+    case AUDIO_INPUT_CLOSED:
+    case AUDIO_OUTPUT_CLOSED:
+    default:
+        break;
+    }
+    mAudioFlinger->ioConfigChanged(event, desc, pid);
+}
+
+status_t AudioFlinger::MmapThread::createAudioPatch_l(const struct audio_patch *patch,
+                                                          audio_patch_handle_t *handle)
+{
+    status_t status = NO_ERROR;
+
+    // store new device and send to effects
+    audio_devices_t type = AUDIO_DEVICE_NONE;
+    audio_port_handle_t deviceId;
+    if (isOutput()) {
+        for (unsigned int i = 0; i < patch->num_sinks; i++) {
+            type |= patch->sinks[i].ext.device.type;
+        }
+        deviceId = patch->sinks[0].id;
+    } else {
+        type = patch->sources[0].ext.device.type;
+        deviceId = patch->sources[0].id;
+    }
+
+    for (size_t i = 0; i < mEffectChains.size(); i++) {
+        mEffectChains[i]->setDevice_l(type);
+    }
+
+    if (isOutput()) {
+        mOutDevice = type;
+    } else {
+        mInDevice = type;
+        // store new source and send to effects
+        if (mAudioSource != patch->sinks[0].ext.mix.usecase.source) {
+            mAudioSource = patch->sinks[0].ext.mix.usecase.source;
+            for (size_t i = 0; i < mEffectChains.size(); i++) {
+                mEffectChains[i]->setAudioSource_l(mAudioSource);
+            }
+        }
+    }
+
+    if (mAudioHwDev->supportsAudioPatches()) {
+        status = mHalDevice->createAudioPatch(patch->num_sources,
+                                            patch->sources,
+                                            patch->num_sinks,
+                                            patch->sinks,
+                                            handle);
+    } else {
+        char *address;
+        if (strcmp(patch->sinks[0].ext.device.address, "") != 0) {
+            //FIXME: we only support address on first sink with HAL version < 3.0
+            address = audio_device_address_to_parameter(
+                                                        patch->sinks[0].ext.device.type,
+                                                        patch->sinks[0].ext.device.address);
+        } else {
+            address = (char *)calloc(1, 1);
+        }
+        AudioParameter param = AudioParameter(String8(address));
+        free(address);
+        param.addInt(String8(AudioParameter::keyRouting), (int)type);
+        if (!isOutput()) {
+            param.addInt(String8(AudioParameter::keyInputSource),
+                                         (int)patch->sinks[0].ext.mix.usecase.source);
+        }
+        status = mHalStream->setParameters(param.toString());
+        *handle = AUDIO_PATCH_HANDLE_NONE;
+    }
+
+    if (isOutput() && mPrevOutDevice != mOutDevice) {
+        mPrevOutDevice = type;
+        sendIoConfigEvent_l(AUDIO_OUTPUT_CONFIG_CHANGED);
+        sp<MmapStreamCallback> callback = mCallback.promote();
+        if (callback != 0) {
+            callback->onRoutingChanged(deviceId);
+        }
+    }
+    if (!isOutput() && mPrevInDevice != mInDevice) {
+        mPrevInDevice = type;
+        sendIoConfigEvent_l(AUDIO_INPUT_CONFIG_CHANGED);
+        sp<MmapStreamCallback> callback = mCallback.promote();
+        if (callback != 0) {
+            callback->onRoutingChanged(deviceId);
+        }
+    }
+    return status;
+}
+
+status_t AudioFlinger::MmapThread::releaseAudioPatch_l(const audio_patch_handle_t handle)
+{
+    status_t status = NO_ERROR;
+
+    mInDevice = AUDIO_DEVICE_NONE;
+
+    bool supportsAudioPatches = mHalDevice->supportsAudioPatches(&supportsAudioPatches) == OK ?
+                                        supportsAudioPatches : false;
+
+    if (supportsAudioPatches) {
+        status = mHalDevice->releaseAudioPatch(handle);
+    } else {
+        AudioParameter param;
+        param.addInt(String8(AudioParameter::keyRouting), 0);
+        status = mHalStream->setParameters(param.toString());
+    }
+    return status;
+}
+
+void AudioFlinger::MmapThread::getAudioPortConfig(struct audio_port_config *config)
+{
+    ThreadBase::getAudioPortConfig(config);
+    if (isOutput()) {
+        config->role = AUDIO_PORT_ROLE_SOURCE;
+        config->ext.mix.hw_module = mAudioHwDev->handle();
+        config->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT;
+    } else {
+        config->role = AUDIO_PORT_ROLE_SINK;
+        config->ext.mix.hw_module = mAudioHwDev->handle();
+        config->ext.mix.usecase.source = mAudioSource;
+    }
+}
+
+status_t AudioFlinger::MmapThread::addEffectChain_l(const sp<EffectChain>& chain)
+{
+    audio_session_t session = chain->sessionId();
+
+    ALOGV("addEffectChain_l() %p on thread %p for session %d", chain.get(), this, session);
+    // Attach all tracks with same session ID to this chain.
+    // indicate all active tracks in the chain
+    for (const sp<MmapTrack> &track : mActiveTracks) {
+        if (session == track->sessionId()) {
+            chain->incTrackCnt();
+            chain->incActiveTrackCnt();
+        }
+    }
+
+    chain->setThread(this);
+    chain->setInBuffer(nullptr);
+    chain->setOutBuffer(nullptr);
+    chain->syncHalEffectsState();
+
+    mEffectChains.add(chain);
+    checkSuspendOnAddEffectChain_l(chain);
+    return NO_ERROR;
+}
+
+size_t AudioFlinger::MmapThread::removeEffectChain_l(const sp<EffectChain>& chain)
+{
+    audio_session_t session = chain->sessionId();
+
+    ALOGV("removeEffectChain_l() %p from thread %p for session %d", chain.get(), this, session);
+
+    for (size_t i = 0; i < mEffectChains.size(); i++) {
+        if (chain == mEffectChains[i]) {
+            mEffectChains.removeAt(i);
+            // detach all active tracks from the chain
+            // detach all tracks with same session ID from this chain
+            for (const sp<MmapTrack> &track : mActiveTracks) {
+                if (session == track->sessionId()) {
+                    chain->decActiveTrackCnt();
+                    chain->decTrackCnt();
+                }
+            }
+            break;
+        }
+    }
+    return mEffectChains.size();
+}
+
+// hasAudioSession_l() must be called with ThreadBase::mLock held
+uint32_t AudioFlinger::MmapThread::hasAudioSession_l(audio_session_t sessionId) const
+{
+    uint32_t result = 0;
+    if (getEffectChain_l(sessionId) != 0) {
+        result = EFFECT_SESSION;
+    }
+
+    for (size_t i = 0; i < mActiveTracks.size(); i++) {
+        sp<MmapTrack> track = mActiveTracks[i];
+        if (sessionId == track->sessionId()) {
+            result |= TRACK_SESSION;
+            if (track->isFastTrack()) {
+                result |= FAST_SESSION;
+            }
+            break;
+        }
+    }
+
+    return result;
+}
+
+void AudioFlinger::MmapThread::threadLoop_standby()
+{
+    mHalStream->standby();
+}
+
+void AudioFlinger::MmapThread::threadLoop_exit()
+{
+    sp<MmapStreamCallback> callback = mCallback.promote();
+    if (callback != 0) {
+        callback->onTearDown();
+    }
+}
+
+status_t AudioFlinger::MmapThread::setSyncEvent(const sp<SyncEvent>& event __unused)
+{
+    return BAD_VALUE;
+}
+
+bool AudioFlinger::MmapThread::isValidSyncEvent(const sp<SyncEvent>& event __unused) const
+{
+    return false;
+}
+
+status_t AudioFlinger::MmapThread::checkEffectCompatibility_l(
+        const effect_descriptor_t *desc, audio_session_t sessionId)
+{
+    // No global effect sessions on mmap threads
+    if (sessionId == AUDIO_SESSION_OUTPUT_MIX || sessionId == AUDIO_SESSION_OUTPUT_STAGE) {
+        ALOGW("checkEffectCompatibility_l(): global effect %s on record thread %s",
+                desc->name, mThreadName);
+        return BAD_VALUE;
+    }
+
+    if (!isOutput() && ((desc->flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_PRE_PROC)) {
+        ALOGW("checkEffectCompatibility_l(): non pre processing effect %s on capture mmap thread",
+                desc->name);
+        return BAD_VALUE;
+    }
+    if (isOutput() && ((desc->flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC)) {
+        ALOGW("checkEffectCompatibility_l(): pre processing effect %s created on playback mmap "
+              "thread", desc->name);
+        return BAD_VALUE;
+    }
+
+    // Only allow effects without processing load or latency
+    if ((desc->flags & EFFECT_FLAG_NO_PROCESS_MASK) != EFFECT_FLAG_NO_PROCESS) {
+        return BAD_VALUE;
+    }
+
+    return NO_ERROR;
+
+}
+
+void AudioFlinger::MmapThread::checkInvalidTracks_l()
+{
+    for (const sp<MmapTrack> &track : mActiveTracks) {
+        if (track->isInvalid()) {
+            sp<MmapStreamCallback> callback = mCallback.promote();
+            if (callback != 0) {
+                callback->onTearDown();
+            }
+            break;
+        }
+    }
+}
+
+void AudioFlinger::MmapThread::dump(int fd, const Vector<String16>& args)
+{
+    dumpInternals(fd, args);
+    dumpTracks(fd, args);
+    dumpEffectChains(fd, args);
+}
+
+void AudioFlinger::MmapThread::dumpInternals(int fd, const Vector<String16>& args)
+{
+    dumpBase(fd, args);
+
+    dprintf(fd, "  Attributes: content type %d usage %d source %d\n",
+            mAttr.content_type, mAttr.usage, mAttr.source);
+    dprintf(fd, "  Session: %d port Id: %d\n", mSessionId, mPortId);
+    if (mActiveTracks.size() == 0) {
+        dprintf(fd, "  No active clients\n");
+    }
+}
+
+void AudioFlinger::MmapThread::dumpTracks(int fd, const Vector<String16>& args __unused)
+{
+    const size_t SIZE = 256;
+    char buffer[SIZE];
+    String8 result;
+
+    size_t numtracks = mActiveTracks.size();
+    dprintf(fd, "  %zu Tracks", numtracks);
+    if (numtracks) {
+        MmapTrack::appendDumpHeader(result);
+        for (size_t i = 0; i < numtracks ; ++i) {
+            sp<MmapTrack> track = mActiveTracks[i];
+            track->dump(buffer, SIZE);
+            result.append(buffer);
+        }
+    } else {
+        dprintf(fd, "\n");
+    }
+    write(fd, result.string(), result.size());
+}
+
+AudioFlinger::MmapPlaybackThread::MmapPlaybackThread(
+        const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+        AudioHwDevice *hwDev,  AudioStreamOut *output,
+        audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady)
+    : MmapThread(audioFlinger, id, hwDev, output->stream, outDevice, inDevice, systemReady),
+      mStreamType(AUDIO_STREAM_MUSIC),
+      mStreamVolume(1.0), mStreamMute(false), mOutput(output)
+{
+    snprintf(mThreadName, kThreadNameLength, "AudioMmapOut_%X", id);
+    mChannelCount = audio_channel_count_from_out_mask(mChannelMask);
+    mMasterVolume = audioFlinger->masterVolume_l();
+    mMasterMute = audioFlinger->masterMute_l();
+    if (mAudioHwDev) {
+        if (mAudioHwDev->canSetMasterVolume()) {
+            mMasterVolume = 1.0;
+        }
+
+        if (mAudioHwDev->canSetMasterMute()) {
+            mMasterMute = false;
+        }
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::configure(const audio_attributes_t *attr,
+                                                audio_stream_type_t streamType,
+                                                audio_session_t sessionId,
+                                                const sp<MmapStreamCallback>& callback,
+                                                audio_port_handle_t portId)
+{
+    MmapThread::configure(attr, streamType, sessionId, callback, portId);
+    mStreamType = streamType;
+}
+
+AudioStreamOut* AudioFlinger::MmapPlaybackThread::clearOutput()
+{
+    Mutex::Autolock _l(mLock);
+    AudioStreamOut *output = mOutput;
+    mOutput = NULL;
+    return output;
+}
+
+void AudioFlinger::MmapPlaybackThread::setMasterVolume(float value)
+{
+    Mutex::Autolock _l(mLock);
+    // Don't apply master volume in SW if our HAL can do it for us.
+    if (mAudioHwDev &&
+            mAudioHwDev->canSetMasterVolume()) {
+        mMasterVolume = 1.0;
+    } else {
+        mMasterVolume = value;
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::setMasterMute(bool muted)
+{
+    Mutex::Autolock _l(mLock);
+    // Don't apply master mute in SW if our HAL can do it for us.
+    if (mAudioHwDev && mAudioHwDev->canSetMasterMute()) {
+        mMasterMute = false;
+    } else {
+        mMasterMute = muted;
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::setStreamVolume(audio_stream_type_t stream, float value)
+{
+    Mutex::Autolock _l(mLock);
+    if (stream == mStreamType) {
+        mStreamVolume = value;
+        broadcast_l();
+    }
+}
+
+float AudioFlinger::MmapPlaybackThread::streamVolume(audio_stream_type_t stream) const
+{
+    Mutex::Autolock _l(mLock);
+    if (stream == mStreamType) {
+        return mStreamVolume;
+    }
+    return 0.0f;
+}
+
+void AudioFlinger::MmapPlaybackThread::setStreamMute(audio_stream_type_t stream, bool muted)
+{
+    Mutex::Autolock _l(mLock);
+    if (stream == mStreamType) {
+        mStreamMute= muted;
+        broadcast_l();
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::invalidateTracks(audio_stream_type_t streamType)
+{
+    Mutex::Autolock _l(mLock);
+    if (streamType == mStreamType) {
+        for (const sp<MmapTrack> &track : mActiveTracks) {
+            track->invalidate();
+        }
+        broadcast_l();
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::processVolume_l()
+{
+    float volume;
+
+    if (mMasterMute || mStreamMute) {
+        volume = 0;
+    } else {
+        volume = mMasterVolume * mStreamVolume;
+    }
+
+    if (volume != mHalVolFloat) {
+        mHalVolFloat = volume;
+
+        // Convert volumes from float to 8.24
+        uint32_t vol = (uint32_t)(volume * (1 << 24));
+
+        // Delegate volume control to effect in track effect chain if needed
+        // only one effect chain can be present on DirectOutputThread, so if
+        // there is one, the track is connected to it
+        if (!mEffectChains.isEmpty()) {
+            mEffectChains[0]->setVolume_l(&vol, &vol);
+            volume = (float)vol / (1 << 24);
+        }
+        // Try to use HW volume control and fall back to SW control if not implemented
+        if (mOutput->stream->setVolume(volume, volume) != NO_ERROR) {
+            sp<MmapStreamCallback> callback = mCallback.promote();
+            if (callback != 0) {
+                int channelCount;
+                if (isOutput()) {
+                    channelCount = audio_channel_count_from_out_mask(mChannelMask);
+                } else {
+                    channelCount = audio_channel_count_from_in_mask(mChannelMask);
+                }
+                Vector<float> values;
+                for (int i = 0; i < channelCount; i++) {
+                    values.add(volume);
+                }
+                callback->onVolumeChanged(mChannelMask, values);
+            } else {
+                ALOGW("Could not set MMAP stream volume: no volume callback!");
+            }
+        }
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::checkSilentMode_l()
+{
+    if (!mMasterMute) {
+        char value[PROPERTY_VALUE_MAX];
+        if (property_get("ro.audio.silent", value, "0") > 0) {
+            char *endptr;
+            unsigned long ul = strtoul(value, &endptr, 0);
+            if (*endptr == '\0' && ul != 0) {
+                ALOGD("Silence is golden");
+                // The setprop command will not allow a property to be changed after
+                // the first time it is set, so we don't have to worry about un-muting.
+                setMasterMute_l(true);
+            }
+        }
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::dumpInternals(int fd, const Vector<String16>& args)
+{
+    MmapThread::dumpInternals(fd, args);
+
+    dprintf(fd, "  Stream type: %d Stream volume: %f HAL volume: %f Stream mute %d\n",
+            mStreamType, mStreamVolume, mHalVolFloat, mStreamMute);
+    dprintf(fd, "  Master volume: %f Master mute %d\n", mMasterVolume, mMasterMute);
+}
+
+AudioFlinger::MmapCaptureThread::MmapCaptureThread(
+        const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+        AudioHwDevice *hwDev,  AudioStreamIn *input,
+        audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady)
+    : MmapThread(audioFlinger, id, hwDev, input->stream, outDevice, inDevice, systemReady),
+      mInput(input)
+{
+    snprintf(mThreadName, kThreadNameLength, "AudioMmapIn_%X", id);
+    mChannelCount = audio_channel_count_from_in_mask(mChannelMask);
+}
+
+AudioFlinger::AudioStreamIn* AudioFlinger::MmapCaptureThread::clearInput()
+{
+    Mutex::Autolock _l(mLock);
+    AudioStreamIn *input = mInput;
+    mInput = NULL;
+    return input;
+}
 } // namespace android
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index ebeabb5..80b368e 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -29,7 +29,9 @@
         DIRECT,             // Thread class is DirectOutputThread
         DUPLICATING,        // Thread class is DuplicatingThread
         RECORD,             // Thread class is RecordThread
-        OFFLOAD             // Thread class is OffloadThread
+        OFFLOAD,            // Thread class is OffloadThread
+        MMAP                // control thread for MMAP stream
+        // If you add any values here, also update ThreadBase::threadTypeToString()
     };
 
     static const char *threadTypeToString(type_t type);
@@ -97,7 +99,7 @@
         sp<ConfigEventData> mData;     // event specific parameter data
 
     protected:
-        ConfigEvent(int type, bool requiresSystemReady = false) :
+        explicit ConfigEvent(int type, bool requiresSystemReady = false) :
             mType(type), mStatus(NO_ERROR), mWaitStatus(false),
             mRequiresSystemReady(requiresSystemReady), mData(NULL) {}
     };
@@ -126,30 +128,32 @@
 
     class PrioConfigEventData : public ConfigEventData {
     public:
-        PrioConfigEventData(pid_t pid, pid_t tid, int32_t prio) :
-            mPid(pid), mTid(tid), mPrio(prio) {}
+        PrioConfigEventData(pid_t pid, pid_t tid, int32_t prio, bool forApp) :
+            mPid(pid), mTid(tid), mPrio(prio), mForApp(forApp) {}
 
         virtual  void dump(char *buffer, size_t size) {
-            snprintf(buffer, size, "Prio event: pid %d, tid %d, prio %d\n", mPid, mTid, mPrio);
+            snprintf(buffer, size, "Prio event: pid %d, tid %d, prio %d, for app? %d\n",
+                    mPid, mTid, mPrio, mForApp);
         }
 
         const pid_t mPid;
         const pid_t mTid;
         const int32_t mPrio;
+        const bool mForApp;
     };
 
     class PrioConfigEvent : public ConfigEvent {
     public:
-        PrioConfigEvent(pid_t pid, pid_t tid, int32_t prio) :
+        PrioConfigEvent(pid_t pid, pid_t tid, int32_t prio, bool forApp) :
             ConfigEvent(CFG_EVENT_PRIO, true) {
-            mData = new PrioConfigEventData(pid, tid, prio);
+            mData = new PrioConfigEventData(pid, tid, prio, forApp);
         }
         virtual ~PrioConfigEvent() {}
     };
 
     class SetParameterConfigEventData : public ConfigEventData {
     public:
-        SetParameterConfigEventData(String8 keyValuePairs) :
+        explicit SetParameterConfigEventData(String8 keyValuePairs) :
             mKeyValuePairs(keyValuePairs) {}
 
         virtual  void dump(char *buffer, size_t size) {
@@ -161,7 +165,7 @@
 
     class SetParameterConfigEvent : public ConfigEvent {
     public:
-        SetParameterConfigEvent(String8 keyValuePairs) :
+        explicit SetParameterConfigEvent(String8 keyValuePairs) :
             ConfigEvent(CFG_EVENT_SET_PARAMETER) {
             mData = new SetParameterConfigEventData(keyValuePairs);
             mWaitStatus = true;
@@ -196,7 +200,7 @@
 
     class ReleaseAudioPatchConfigEventData : public ConfigEventData {
     public:
-        ReleaseAudioPatchConfigEventData(const audio_patch_handle_t handle) :
+        explicit ReleaseAudioPatchConfigEventData(const audio_patch_handle_t handle) :
             mHandle(handle) {}
 
         virtual  void dump(char *buffer, size_t size) {
@@ -208,7 +212,7 @@
 
     class ReleaseAudioPatchConfigEvent : public ConfigEvent {
     public:
-        ReleaseAudioPatchConfigEvent(const audio_patch_handle_t handle) :
+        explicit ReleaseAudioPatchConfigEvent(const audio_patch_handle_t handle) :
             ConfigEvent(CFG_EVENT_RELEASE_AUDIO_PATCH) {
             mData = new ReleaseAudioPatchConfigEventData(handle);
             mWaitStatus = true;
@@ -218,7 +222,7 @@
 
     class PMDeathRecipient : public IBinder::DeathRecipient {
     public:
-                    PMDeathRecipient(const wp<ThreadBase>& thread) : mThread(thread) {}
+        explicit    PMDeathRecipient(const wp<ThreadBase>& thread) : mThread(thread) {}
         virtual     ~PMDeathRecipient() {}
 
         // IBinder::DeathRecipient
@@ -267,8 +271,8 @@
                 status_t    sendConfigEvent_l(sp<ConfigEvent>& event);
                 void        sendIoConfigEvent(audio_io_config_event event, pid_t pid = 0);
                 void        sendIoConfigEvent_l(audio_io_config_event event, pid_t pid = 0);
-                void        sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio);
-                void        sendPrioConfigEvent_l(pid_t pid, pid_t tid, int32_t prio);
+                void        sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio, bool forApp);
+                void        sendPrioConfigEvent_l(pid_t pid, pid_t tid, int32_t prio, bool forApp);
                 status_t    sendSetParameterConfigEvent_l(const String8& keyValuePair);
                 status_t    sendCreateAudioPatchConfigEvent(const struct audio_patch *patch,
                                                             audio_patch_handle_t *handle);
@@ -285,8 +289,11 @@
                 bool        standby() const { return mStandby; }
                 audio_devices_t outDevice() const { return mOutDevice; }
                 audio_devices_t inDevice() const { return mInDevice; }
+                audio_devices_t getDevice() const { return isOutput() ? mOutDevice : mInDevice; }
 
-    virtual     audio_stream_t* stream() const = 0;
+    virtual     bool        isOutput() const = 0;
+
+    virtual     sp<StreamHalInterface> stream() const = 0;
 
                 sp<EffectHandle> createEffect_l(
                                     const sp<AudioFlinger::Client>& client,
@@ -390,6 +397,8 @@
                 virtual status_t    checkEffectCompatibility_l(const effect_descriptor_t *desc,
                                                                audio_session_t sessionId) = 0;
 
+                        void        broadcast_l();
+
     mutable     Mutex                   mLock;
 
 protected:
@@ -403,12 +412,11 @@
                     effect_uuid_t mType;    // effect type UUID
                 };
 
-                void        acquireWakeLock(int uid = -1);
-                virtual void acquireWakeLock_l(int uid = -1);
+                void        acquireWakeLock();
+                virtual void acquireWakeLock_l();
                 void        releaseWakeLock();
                 void        releaseWakeLock_l();
-                void        updateWakeLockUids(const SortedVector<int> &uids);
-                void        updateWakeLockUids_l(const SortedVector<int> &uids);
+                void        updateWakeLockUids_l(const SortedVector<uid_t> &uids);
                 void        getPowerManager_l();
                 void setEffectSuspended_l(const effect_uuid_t *type,
                                           bool suspend,
@@ -482,12 +490,115 @@
                 static const size_t     kLogSize = 4 * 1024;
                 sp<NBLog::Writer>       mNBLogWriter;
                 bool                    mSystemReady;
-                bool                    mNotifiedBatteryStart;
                 ExtendedTimestamp       mTimestamp;
+                // A condition that must be evaluated by the thread loop has changed and
+                // we must not wait for async write callback in the thread loop before evaluating it
+                bool                    mSignalPending;
+
+                // ActiveTracks is a sorted vector of track type T representing the
+                // active tracks of threadLoop() to be considered by the locked prepare portion.
+                // ActiveTracks should be accessed with the ThreadBase lock held.
+                //
+                // During processing and I/O, the threadLoop does not hold the lock;
+                // hence it does not directly use ActiveTracks.  Care should be taken
+                // to hold local strong references or defer removal of tracks
+                // if the threadLoop may still be accessing those tracks due to mix, etc.
+                //
+                // This class updates power information appropriately.
+                //
+
+                template <typename T>
+                class ActiveTracks {
+                public:
+                    ActiveTracks()
+                        : mActiveTracksGeneration(0)
+                        , mLastActiveTracksGeneration(0)
+                    { }
+
+                    ~ActiveTracks() {
+                        ALOGW_IF(!mActiveTracks.isEmpty(),
+                                "ActiveTracks should be empty in destructor");
+                    }
+                    // returns the last track added (even though it may have been
+                    // subsequently removed from ActiveTracks).
+                    //
+                    // Used for DirectOutputThread to ensure a flush is called when transitioning
+                    // to a new track (even though it may be on the same session).
+                    // Used for OffloadThread to ensure that volume and mixer state is
+                    // taken from the latest track added.
+                    //
+                    // The latest track is saved with a weak pointer to prevent keeping an
+                    // otherwise useless track alive. Thus the function will return nullptr
+                    // if the latest track has subsequently been removed and destroyed.
+                    sp<T> getLatest() {
+                        return mLatestActiveTrack.promote();
+                    }
+
+                    // SortedVector methods
+                    ssize_t         add(const sp<T> &track);
+                    ssize_t         remove(const sp<T> &track);
+                    size_t          size() const {
+                        return mActiveTracks.size();
+                    }
+                    ssize_t         indexOf(const sp<T>& item) {
+                        return mActiveTracks.indexOf(item);
+                    }
+                    sp<T>           operator[](size_t index) const {
+                        return mActiveTracks[index];
+                    }
+                    typename SortedVector<sp<T>>::iterator begin() {
+                        return mActiveTracks.begin();
+                    }
+                    typename SortedVector<sp<T>>::iterator end() {
+                        return mActiveTracks.end();
+                    }
+
+                    // Due to Binder recursion optimization, clear() and updatePowerState()
+                    // cannot be called from a Binder thread because they may call back into
+                    // the original calling process (system server) for BatteryNotifier
+                    // (which requires a Java environment that may not be present).
+                    // Hence, call clear() and updatePowerState() only from the
+                    // ThreadBase thread.
+                    void            clear();
+                    // periodically called in the threadLoop() to update power state uids.
+                    void            updatePowerState(sp<ThreadBase> thread, bool force = false);
+
+                private:
+                    SortedVector<uid_t> getWakeLockUids() {
+                        SortedVector<uid_t> wakeLockUids;
+                        for (const sp<T> &track : mActiveTracks) {
+                            wakeLockUids.add(track->uid());
+                        }
+                        return wakeLockUids; // moved by underlying SharedBuffer
+                    }
+
+                    std::map<uid_t, std::pair<ssize_t /* previous */, ssize_t /* current */>>
+                                        mBatteryCounter;
+                    SortedVector<sp<T>> mActiveTracks;
+                    int                 mActiveTracksGeneration;
+                    int                 mLastActiveTracksGeneration;
+                    wp<T>               mLatestActiveTrack; // latest track added to ActiveTracks
+                };
+
+                SimpleLog mLocalLog;
+};
+
+class VolumeInterface {
+ public:
+
+    virtual ~VolumeInterface() {}
+
+    virtual void        setMasterVolume(float value) = 0;
+    virtual void        setMasterMute(bool muted) = 0;
+    virtual void        setStreamVolume(audio_stream_type_t stream, float value) = 0;
+    virtual void        setStreamMute(audio_stream_type_t stream, bool muted) = 0;
+    virtual float       streamVolume(audio_stream_type_t stream) const = 0;
+
 };
 
 // --- PlaybackThread ---
-class PlaybackThread : public ThreadBase {
+class PlaybackThread : public ThreadBase, public StreamOutHalInterfaceCallback,
+    public VolumeInterface {
 public:
 
 #include "PlaybackTracks.h"
@@ -512,6 +623,12 @@
     // 14 tracks max per client allows for 2 misbehaving application leaving 4 available tracks.
     static const uint32_t kMaxTracksPerUid = 14;
 
+    // Maximum delay (in nanoseconds) for upcoming buffers in suspend mode, otherwise
+    // if delay is greater, the estimated time for timeLoopNextNs is reset.
+    // This allows for catch-up to be done for small delays, while resetting the estimate
+    // for initial conditions or large delays.
+    static const nsecs_t kMaxNextBufferDelayNs = 100000000;
+
     PlaybackThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output,
                    audio_io_handle_t id, audio_devices_t device, type_t type, bool systemReady);
     virtual             ~PlaybackThread();
@@ -544,13 +661,13 @@
     virtual     mixer_state prepareTracks_l(Vector< sp<Track> > *tracksToRemove) = 0;
                 void        removeTracks_l(const Vector< sp<Track> >& tracksToRemove);
 
-                void        writeCallback();
-                void        resetWriteBlocked(uint32_t sequence);
-                void        drainCallback();
-                void        resetDraining(uint32_t sequence);
-                void        errorCallback();
+    // StreamOutHalInterfaceCallback implementation
+    virtual     void        onWriteReady();
+    virtual     void        onDrainReady();
+    virtual     void        onError();
 
-    static      int         asyncCallback(stream_callback_event_t event, void *param, void *cookie);
+                void        resetWriteBlocked(uint32_t sequence);
+                void        resetDraining(uint32_t sequence);
 
     virtual     bool        waitingAsyncCallback();
     virtual     bool        waitingAsyncCallback_l();
@@ -562,6 +679,10 @@
     virtual     void        preExit();
 
     virtual     bool        keepWakeLock() const { return true; }
+    virtual     void        acquireWakeLock_l() {
+                                ThreadBase::acquireWakeLock_l();
+                                mActiveTracks.updatePowerState(this, true /* force */);
+                            }
 
 public:
 
@@ -572,13 +693,12 @@
                 // same, but lock must already be held
                 uint32_t    latency_l() const;
 
-                void        setMasterVolume(float value);
-                void        setMasterMute(bool muted);
-
-                void        setStreamVolume(audio_stream_type_t stream, float value);
-                void        setStreamMute(audio_stream_type_t stream, bool muted);
-
-                float       streamVolume(audio_stream_type_t stream) const;
+                // VolumeInterface
+    virtual     void        setMasterVolume(float value);
+    virtual     void        setMasterMute(bool muted);
+    virtual     void        setStreamVolume(audio_stream_type_t stream, float value);
+    virtual     void        setStreamMute(audio_stream_type_t stream, bool muted);
+    virtual     float       streamVolume(audio_stream_type_t stream) const;
 
                 sp<Track>   createTrack_l(
                                 const sp<AudioFlinger::Client>& client,
@@ -591,12 +711,13 @@
                                 audio_session_t sessionId,
                                 audio_output_flags_t *flags,
                                 pid_t tid,
-                                int uid,
-                                status_t *status /*non-NULL*/);
+                                uid_t uid,
+                                status_t *status /*non-NULL*/,
+                                audio_port_handle_t portId);
 
                 AudioStreamOut* getOutput() const;
                 AudioStreamOut* clearOutput();
-                virtual audio_stream_t* stream() const;
+                virtual sp<StreamHalInterface> stream() const;
 
                 // a very large number of suspend() will eventually wraparound, but unlikely
                 void        suspend() { (void) android_atomic_inc(&mSuspended); }
@@ -621,9 +742,9 @@
                     return reinterpret_cast<int16_t *>(mSinkBuffer); };
 
     virtual     void detachAuxEffect_l(int effectId);
-                status_t attachAuxEffect(const sp<AudioFlinger::PlaybackThread::Track> track,
+                status_t attachAuxEffect(const sp<AudioFlinger::PlaybackThread::Track>& track,
                         int EffectId);
-                status_t attachAuxEffect_l(const sp<AudioFlinger::PlaybackThread::Track> track,
+                status_t attachAuxEffect_l(const sp<AudioFlinger::PlaybackThread::Track>& track,
                         int EffectId);
 
                 virtual status_t addEffectChain_l(const sp<EffectChain>& chain);
@@ -648,6 +769,11 @@
 
     virtual     void        getAudioPortConfig(struct audio_port_config *config);
 
+                // Return the asynchronous signal wait time.
+    virtual     int64_t     computeWaitTimeNs_l() const { return INT64_MAX; }
+
+    virtual     bool        isOutput() const override { return true; }
+
 protected:
     // updated by readOutputParameters_l()
     size_t                          mNormalFrameCount;  // normal mixer and effects
@@ -734,10 +860,7 @@
     bool                            mMasterMute;
                 void        setMasterMute_l(bool muted) { mMasterMute = muted; }
 protected:
-    SortedVector< wp<Track> >       mActiveTracks;  // FIXME check if this could be sp<>
-    SortedVector<int>               mWakeLockUids;
-    int                             mActiveTracksGeneration;
-    wp<Track>                       mLatestActiveTrack; // latest track added to mActiveTracks
+    ActiveTracks<Track>     mActiveTracks;
 
     // Allocate a track name for a given channel mask.
     //   Returns name >= 0 if successful, -1 on failure.
@@ -783,7 +906,6 @@
     status_t    addTrack_l(const sp<Track>& track);
     bool        destroyTrack_l(const sp<Track>& track);
     void        removeTrack_l(const sp<Track>& track);
-    void        broadcast_l();
 
     void        readOutputParameters_l();
 
@@ -845,9 +967,6 @@
     // Bit 0 is reset by the async callback thread calling resetDraining(). Out of sequence
     // callbacks are ignored.
     uint32_t                        mDrainSequence;
-    // A condition that must be evaluated by prepareTrack_l() has changed and we must not wait
-    // for async write callback in the thread loop before evaluating it
-    bool                            mSignalPending;
     sp<AsyncCallbackThread>         mCallbackThread;
 
 private:
@@ -865,6 +984,8 @@
     uint32_t                mScreenState;   // cached copy of gScreenState
     static const size_t     kFastMixerLogSize = 4 * 1024;
     sp<NBLog::Writer>       mFastMixerNBLogWriter;
+
+
 public:
     virtual     bool        hasFastMixer() const = 0;
     virtual     FastTrackUnderruns getFastTrackUnderruns(size_t fastIndex __unused) const
@@ -903,8 +1024,8 @@
     virtual     uint32_t    suspendSleepTimeUs() const;
     virtual     void        cacheParameters_l();
 
-    virtual void acquireWakeLock_l(int uid = -1) {
-        PlaybackThread::acquireWakeLock_l(uid);
+    virtual void acquireWakeLock_l() {
+        PlaybackThread::acquireWakeLock_l();
         if (hasFastMixer()) {
             mFastMixer->setBoottimeOffset(
                     mTimestamp.mTimebaseOffset[ExtendedTimestamp::TIMEBASE_BOOTTIME]);
@@ -996,6 +1117,7 @@
     // volumes last sent to audio HAL with stream->set_volume()
     float mLeftVolFloat;
     float mRightVolFloat;
+    bool mVolumeShaperActive;
 
     DirectOutputThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output,
                         audio_io_handle_t id, uint32_t device, ThreadBase::type_t type,
@@ -1009,6 +1131,8 @@
 
 public:
     virtual     bool        hasFastMixer() const { return false; }
+
+    virtual     int64_t     computeWaitTimeNs_l() const override;
 };
 
 class OffloadThread : public DirectOutputThread {
@@ -1043,7 +1167,7 @@
 class AsyncCallbackThread : public Thread {
 public:
 
-    AsyncCallbackThread(const wp<PlaybackThread>& playbackThread);
+    explicit AsyncCallbackThread(const wp<PlaybackThread>& playbackThread);
 
     virtual             ~AsyncCallbackThread();
 
@@ -1113,7 +1237,6 @@
     virtual     bool        hasFastMixer() const { return false; }
 };
 
-
 // record thread
 class RecordThread : public ThreadBase
 {
@@ -1128,7 +1251,7 @@
     class ResamplerBufferProvider : public AudioBufferProvider
     {
     public:
-        ResamplerBufferProvider(RecordTrack* recordTrack) :
+        explicit ResamplerBufferProvider(RecordTrack* recordTrack) :
             mRecordTrack(recordTrack),
             mRsmpInUnrel(0), mRsmpInFront(0) { }
         virtual ~ResamplerBufferProvider() { }
@@ -1162,92 +1285,6 @@
                                             // rolling counter that is never cleared
     };
 
-    /* The RecordBufferConverter is used for format, channel, and sample rate
-     * conversion for a RecordTrack.
-     *
-     * TODO: Self contained, so move to a separate file later.
-     *
-     * RecordBufferConverter uses the convert() method rather than exposing a
-     * buffer provider interface; this is to save a memory copy.
-     */
-    class RecordBufferConverter
-    {
-    public:
-        RecordBufferConverter(
-                audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
-                uint32_t srcSampleRate,
-                audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
-                uint32_t dstSampleRate);
-
-        ~RecordBufferConverter();
-
-        /* Converts input data from an AudioBufferProvider by format, channelMask,
-         * and sampleRate to a destination buffer.
-         *
-         * Parameters
-         *      dst:  buffer to place the converted data.
-         * provider:  buffer provider to obtain source data.
-         *   frames:  number of frames to convert
-         *
-         * Returns the number of frames converted.
-         */
-        size_t convert(void *dst, AudioBufferProvider *provider, size_t frames);
-
-        // returns NO_ERROR if constructor was successful
-        status_t initCheck() const {
-            // mSrcChannelMask set on successful updateParameters
-            return mSrcChannelMask != AUDIO_CHANNEL_INVALID ? NO_ERROR : NO_INIT;
-        }
-
-        // allows dynamic reconfigure of all parameters
-        status_t updateParameters(
-                audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
-                uint32_t srcSampleRate,
-                audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
-                uint32_t dstSampleRate);
-
-        // called to reset resampler buffers on record track discontinuity
-        void reset() {
-            if (mResampler != NULL) {
-                mResampler->reset();
-            }
-        }
-
-    private:
-        // format conversion when not using resampler
-        void convertNoResampler(void *dst, const void *src, size_t frames);
-
-        // format conversion when using resampler; modifies src in-place
-        void convertResampler(void *dst, /*not-a-const*/ void *src, size_t frames);
-
-        // user provided information
-        audio_channel_mask_t mSrcChannelMask;
-        audio_format_t       mSrcFormat;
-        uint32_t             mSrcSampleRate;
-        audio_channel_mask_t mDstChannelMask;
-        audio_format_t       mDstFormat;
-        uint32_t             mDstSampleRate;
-
-        // derived information
-        uint32_t             mSrcChannelCount;
-        uint32_t             mDstChannelCount;
-        size_t               mDstFrameSize;
-
-        // format conversion buffer
-        void                *mBuf;
-        size_t               mBufFrames;
-        size_t               mBufFrameSize;
-
-        // resampler info
-        AudioResampler      *mResampler;
-
-        bool                 mIsLegacyDownmix;  // legacy stereo to mono conversion needed
-        bool                 mIsLegacyUpmix;    // legacy mono to stereo conversion needed
-        bool                 mRequiresFloat;    // data processing requires float (e.g. resampler)
-        PassthruBufferProvider *mInputConverterProvider;    // converts input to float
-        int8_t               mIdxAry[sizeof(uint32_t) * 8]; // used for channel mask conversion
-    };
-
 #include "RecordTracks.h"
 
             RecordThread(const sp<AudioFlinger>& audioFlinger,
@@ -1271,6 +1308,7 @@
 
     // Thread virtuals
     virtual bool        threadLoop();
+    virtual void        preExit();
 
     // RefBase
     virtual void        onFirstRef();
@@ -1289,10 +1327,11 @@
                     size_t *pFrameCount,
                     audio_session_t sessionId,
                     size_t *notificationFrames,
-                    int uid,
+                    uid_t uid,
                     audio_input_flags_t *flags,
                     pid_t tid,
-                    status_t *status /*non-NULL*/);
+                    status_t *status /*non-NULL*/,
+                    audio_port_handle_t portId);
 
             status_t    start(RecordTrack* recordTrack,
                               AudioSystem::sync_event_t event,
@@ -1304,7 +1343,7 @@
 
             void        dump(int fd, const Vector<String16>& args);
             AudioStreamIn* clearInput();
-            virtual audio_stream_t* stream() const;
+            virtual sp<StreamHalInterface> stream() const;
 
 
     virtual bool        checkForNewParameter_l(const String8& keyValuePair,
@@ -1343,6 +1382,12 @@
     virtual status_t    checkEffectCompatibility_l(const effect_descriptor_t *desc,
                                                    audio_session_t sessionId);
 
+    virtual void        acquireWakeLock_l() {
+                            ThreadBase::acquireWakeLock_l();
+                            mActiveTracks.updatePowerState(this, true /* force */);
+                        }
+    virtual bool        isOutput() const override { return false; }
+
 private:
             // Enter standby if not already in standby, and set mStandby flag
             void    standbyIfNotAlreadyInStandby();
@@ -1354,15 +1399,15 @@
             SortedVector < sp<RecordTrack> >    mTracks;
             // mActiveTracks has dual roles:  it indicates the current active track(s), and
             // is used together with mStartStopCond to indicate start()/stop() progress
-            SortedVector< sp<RecordTrack> >     mActiveTracks;
-            // generation counter for mActiveTracks
-            int                                 mActiveTracksGen;
+            ActiveTracks<RecordTrack>           mActiveTracks;
+
             Condition                           mStartStopCond;
 
             // resampler converts input at HAL Hz to output at AudioRecord client Hz
-            void                               *mRsmpInBuffer; //
+            void                               *mRsmpInBuffer;  // size = mRsmpInFramesOA
             size_t                              mRsmpInFrames;  // size of resampler input in frames
             size_t                              mRsmpInFramesP2;// size rounded up to a power-of-2
+            size_t                              mRsmpInFramesOA;// mRsmpInFramesP2 + over-allocation
 
             // rolling index that is never cleared
             int32_t                             mRsmpInRear;    // last filled frame + 1
@@ -1410,3 +1455,153 @@
 
             bool                                mFastTrackAvail;    // true if fast track available
 };
+
+class MmapThread : public ThreadBase
+{
+ public:
+
+#include "MmapTracks.h"
+
+    MmapThread(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+                      AudioHwDevice *hwDev, sp<StreamHalInterface> stream,
+                      audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady);
+    virtual     ~MmapThread();
+
+    virtual     void        configure(const audio_attributes_t *attr,
+                                      audio_stream_type_t streamType,
+                                      audio_session_t sessionId,
+                                      const sp<MmapStreamCallback>& callback,
+                                      audio_port_handle_t portId);
+
+                void        disconnect();
+
+    // MmapStreamInterface
+    status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info);
+    status_t getMmapPosition(struct audio_mmap_position *position);
+    status_t start(const MmapStreamInterface::Client& client, audio_port_handle_t *handle);
+    status_t stop(audio_port_handle_t handle);
+    status_t standby();
+
+    // RefBase
+    virtual     void        onFirstRef();
+
+    // Thread virtuals
+    virtual     bool        threadLoop();
+
+    virtual     void        threadLoop_exit();
+    virtual     void        threadLoop_standby();
+    virtual     bool        shouldStandby_l() { return false; }
+
+    virtual     status_t    initCheck() const { return (mHalStream == 0) ? NO_INIT : NO_ERROR; }
+    virtual     size_t      frameCount() const { return mFrameCount; }
+    virtual     bool        checkForNewParameter_l(const String8& keyValuePair,
+                                                    status_t& status);
+    virtual     String8     getParameters(const String8& keys);
+    virtual     void        ioConfigChanged(audio_io_config_event event, pid_t pid = 0);
+                void        readHalParameters_l();
+    virtual     void        cacheParameters_l() {}
+    virtual     status_t    createAudioPatch_l(const struct audio_patch *patch,
+                                               audio_patch_handle_t *handle);
+    virtual     status_t    releaseAudioPatch_l(const audio_patch_handle_t handle);
+    virtual     void        getAudioPortConfig(struct audio_port_config *config);
+
+    virtual     sp<StreamHalInterface> stream() const { return mHalStream; }
+    virtual     status_t    addEffectChain_l(const sp<EffectChain>& chain);
+    virtual     size_t      removeEffectChain_l(const sp<EffectChain>& chain);
+    virtual     status_t    checkEffectCompatibility_l(const effect_descriptor_t *desc,
+                                                               audio_session_t sessionId);
+
+    virtual     uint32_t    hasAudioSession_l(audio_session_t sessionId) const;
+    virtual     status_t    setSyncEvent(const sp<SyncEvent>& event);
+    virtual     bool        isValidSyncEvent(const sp<SyncEvent>& event) const;
+
+    virtual     void        checkSilentMode_l() {}
+    virtual     void        processVolume_l() {}
+                void        checkInvalidTracks_l();
+
+    virtual     audio_stream_type_t streamType() { return AUDIO_STREAM_DEFAULT; }
+
+    virtual     void        invalidateTracks(audio_stream_type_t streamType __unused) {}
+
+                void        dump(int fd, const Vector<String16>& args);
+    virtual     void        dumpInternals(int fd, const Vector<String16>& args);
+                void        dumpTracks(int fd, const Vector<String16>& args);
+
+ protected:
+
+                audio_attributes_t      mAttr;
+                audio_session_t         mSessionId;
+                audio_port_handle_t     mPortId;
+
+                wp<MmapStreamCallback>  mCallback;
+                sp<StreamHalInterface>  mHalStream;
+                sp<DeviceHalInterface>  mHalDevice;
+                AudioHwDevice* const    mAudioHwDev;
+                ActiveTracks<MmapTrack> mActiveTracks;
+};
+
+class MmapPlaybackThread : public MmapThread, public VolumeInterface
+{
+
+public:
+    MmapPlaybackThread(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+                      AudioHwDevice *hwDev, AudioStreamOut *output,
+                      audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady);
+    virtual     ~MmapPlaybackThread() {}
+
+    virtual     void        configure(const audio_attributes_t *attr,
+                                      audio_stream_type_t streamType,
+                                      audio_session_t sessionId,
+                                      const sp<MmapStreamCallback>& callback,
+                                      audio_port_handle_t portId);
+
+                AudioStreamOut* clearOutput();
+
+                // VolumeInterface
+    virtual     void        setMasterVolume(float value);
+    virtual     void        setMasterMute(bool muted);
+    virtual     void        setStreamVolume(audio_stream_type_t stream, float value);
+    virtual     void        setStreamMute(audio_stream_type_t stream, bool muted);
+    virtual     float       streamVolume(audio_stream_type_t stream) const;
+
+                void        setMasterMute_l(bool muted) { mMasterMute = muted; }
+
+    virtual     void        invalidateTracks(audio_stream_type_t streamType);
+
+    virtual     audio_stream_type_t streamType() { return mStreamType; }
+    virtual     void        checkSilentMode_l();
+    virtual     void        processVolume_l();
+
+    virtual     void        dumpInternals(int fd, const Vector<String16>& args);
+
+    virtual     bool        isOutput() const override { return true; }
+
+protected:
+
+                audio_stream_type_t         mStreamType;
+                float                       mMasterVolume;
+                float                       mStreamVolume;
+                bool                        mMasterMute;
+                bool                        mStreamMute;
+                float                       mHalVolFloat;
+                AudioStreamOut*             mOutput;
+};
+
+class MmapCaptureThread : public MmapThread
+{
+
+public:
+    MmapCaptureThread(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+                      AudioHwDevice *hwDev, AudioStreamIn *input,
+                      audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady);
+    virtual     ~MmapCaptureThread() {}
+
+                AudioStreamIn* clearInput();
+
+    virtual     bool           isOutput() const override { return false; }
+
+protected:
+
+                AudioStreamIn*  mInput;
+};
diff --git a/services/audioflinger/TrackBase.h b/services/audioflinger/TrackBase.h
index 6b97246..e0c09f7 100644
--- a/services/audioflinger/TrackBase.h
+++ b/services/audioflinger/TrackBase.h
@@ -62,10 +62,11 @@
                                 size_t frameCount,
                                 void *buffer,
                                 audio_session_t sessionId,
-                                int uid,
+                                uid_t uid,
                                 bool isOut,
                                 alloc_type alloc = ALLOC_CBLK,
-                                track_type type = TYPE_DEFAULT);
+                                track_type type = TYPE_DEFAULT,
+                                audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE);
     virtual             ~TrackBase();
     virtual status_t    initCheck() const;
 
@@ -75,7 +76,8 @@
             sp<IMemory> getCblk() const { return mCblkMemory; }
             audio_track_cblk_t* cblk() const { return mCblk; }
             audio_session_t sessionId() const { return mSessionId; }
-            int         uid() const { return mUid; }
+            uid_t       uid() const { return mUid; }
+            audio_port_handle_t portId() const { return mPortId; }
     virtual status_t    setSyncEvent(const sp<SyncEvent>& event);
 
             sp<IMemory> getBuffers() const { return mBufferMemory; }
@@ -85,6 +87,10 @@
             bool        isPatchTrack() const { return (mType == TYPE_PATCH); }
             bool        isExternalTrack() const { return !isOutputTrack() && !isPatchTrack(); }
 
+    virtual void        invalidate() { mIsInvalid = true; }
+            bool        isInvalid() const { return mIsInvalid; }
+
+
 protected:
                         TrackBase(const TrackBase&);
                         TrackBase& operator = (const TrackBase&);
@@ -153,16 +159,18 @@
                                     // openRecord(), and then adjusted as needed
 
     const audio_session_t mSessionId;
-    int                 mUid;
+    uid_t               mUid;
     Vector < sp<SyncEvent> >mSyncEvents;
     const bool          mIsOut;
-    ServerProxy*        mServerProxy;
+    sp<ServerProxy>     mServerProxy;
     const int           mId;
     sp<NBAIO_Sink>      mTeeSink;
     sp<NBAIO_Source>    mTeeSource;
     bool                mTerminated;
     track_type          mType;      // must be one of TYPE_DEFAULT, TYPE_OUTPUT, TYPE_PATCH ...
     audio_io_handle_t   mThreadIoHandle; // I/O handle of the thread the track is attached to
+    audio_port_handle_t mPortId; // unique ID for this track used by audio policy
+    bool                mIsInvalid; // non-resettable latch, set by invalidate()
 };
 
 // PatchProxyBufferProvider interface is implemented by PatchTrack and PatchRecord.
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index a3f3ea5..301510c 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -27,12 +27,12 @@
 
 #include <private/media/AudioTrackShared.h>
 
-#include "AudioMixer.h"
 #include "AudioFlinger.h"
 #include "ServiceUtilities.h"
 
 #include <media/nbaio/Pipe.h>
 #include <media/nbaio/PipeReader.h>
+#include <media/RecordBufferConverter.h>
 #include <audio_utils/minifloat.h>
 
 // ----------------------------------------------------------------------------
@@ -52,7 +52,7 @@
 
 // TODO move to a common header  (Also shared with AudioTrack.cpp)
 #define NANOS_PER_SECOND    1000000000
-#define TIME_TO_NANOS(time) ((uint64_t)time.tv_sec * NANOS_PER_SECOND + time.tv_nsec)
+#define TIME_TO_NANOS(time) ((uint64_t)(time).tv_sec * NANOS_PER_SECOND + (time).tv_nsec)
 
 namespace android {
 
@@ -72,10 +72,11 @@
             size_t frameCount,
             void *buffer,
             audio_session_t sessionId,
-            int clientUid,
+            uid_t clientUid,
             bool isOut,
             alloc_type alloc,
-            track_type type)
+            track_type type,
+            audio_port_handle_t portId)
     :   RefBase(),
         mThread(thread),
         mClient(client),
@@ -93,17 +94,18 @@
         mFrameCount(frameCount),
         mSessionId(sessionId),
         mIsOut(isOut),
-        mServerProxy(NULL),
         mId(android_atomic_inc(&nextTrackId)),
         mTerminated(false),
         mType(type),
-        mThreadIoHandle(thread->id())
+        mThreadIoHandle(thread->id()),
+        mPortId(portId),
+        mIsInvalid(false)
 {
     const uid_t callingUid = IPCThreadState::self()->getCallingUid();
-    if (!isTrustedCallingUid(callingUid) || clientUid == -1) {
-        ALOGW_IF(clientUid != -1 && clientUid != (int)callingUid,
+    if (!isTrustedCallingUid(callingUid) || clientUid == AUDIO_UID_INVALID) {
+        ALOGW_IF(clientUid != AUDIO_UID_INVALID && clientUid != callingUid,
                 "%s uid %d tried to pass itself off as %d", __FUNCTION__, callingUid, clientUid);
-        clientUid = (int)callingUid;
+        clientUid = callingUid;
     }
     // clientUid contains the uid of the app that is responsible for this track, so we can blame
     // battery usage on it.
@@ -235,7 +237,7 @@
     dumpTee(-1, mTeeSource, mId);
 #endif
     // delete the proxy before deleting the shared memory it refers to, to avoid dangling reference
-    delete mServerProxy;
+    mServerProxy.clear();
     if (mCblk != NULL) {
         mCblk->~audio_track_cblk_t();   // destroy our shared-structure.
         if (mClient == 0) {
@@ -327,6 +329,16 @@
     return mTrack->setParameters(keyValuePairs);
 }
 
+VolumeShaper::Status AudioFlinger::TrackHandle::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation) {
+    return mTrack->applyVolumeShaper(configuration, operation);
+}
+
+sp<VolumeShaper::State> AudioFlinger::TrackHandle::getVolumeShaperState(int id) {
+    return mTrack->getVolumeShaperState(id);
+}
+
 status_t AudioFlinger::TrackHandle::getTimestamp(AudioTimestamp& timestamp)
 {
     return mTrack->getTimestamp(timestamp);
@@ -358,14 +370,15 @@
             void *buffer,
             const sp<IMemory>& sharedBuffer,
             audio_session_t sessionId,
-            int uid,
+            uid_t uid,
             audio_output_flags_t flags,
-            track_type type)
+            track_type type,
+            audio_port_handle_t portId)
     :   TrackBase(thread, client, sampleRate, format, channelMask, frameCount,
                   (sharedBuffer != 0) ? sharedBuffer->pointer() : buffer,
                   sessionId, uid, true /*isOut*/,
                   (type == TYPE_PATCH) ? ( buffer == NULL ? ALLOC_LOCAL : ALLOC_NONE) : ALLOC_CBLK,
-                  type),
+                  type, portId),
     mFillingUpStatus(FS_INVALID),
     // mRetryCount initialized later when needed
     mSharedBuffer(sharedBuffer),
@@ -376,11 +389,10 @@
     mAuxEffectId(0), mHasVolumeController(false),
     mPresentationCompleteFrames(0),
     mFrameMap(16 /* sink-frame-to-track-frame map memory */),
+    mVolumeHandler(new VolumeHandler(sampleRate)),
     // mSinkTimestamp
     mFastIndex(-1),
     mCachedVolume(1.0),
-    mIsInvalid(false),
-    mAudioTrackServerProxy(NULL),
     mResumeToStopping(false),
     mFlushHwPending(false),
     mFlags(flags)
@@ -492,7 +504,7 @@
 /*static*/ void AudioFlinger::PlaybackThread::Track::appendDumpHeader(String8& result)
 {
     result.append("    Name Active Client Type      Fmt Chn mask Session fCount S F SRate  "
-                  "L dB  R dB    Server Main buf  Aux Buf Flags UndFrmCnt\n");
+                  "L dB  R dB  VS dB    Server Main buf  Aux buf Flags UndFrmCnt  Flushed\n");
 }
 
 void AudioFlinger::PlaybackThread::Track::dump(char* buffer, size_t size, bool active)
@@ -558,8 +570,11 @@
         nowInUnderrun = '?';
         break;
     }
-    snprintf(&buffer[8], size-8, " %6s %6u %4u %08X %08X %7u %6zu %1c %1d %5u %5.2g %5.2g  "
-                                 "%08X %p %p 0x%03X %9u%c\n",
+
+    std::pair<float /* volume */, bool /* active */> vsVolume = mVolumeHandler->getLastVolume();
+    snprintf(&buffer[8], size - 8, " %6s %6u %4u %08X %08X %7u %6zu %1c %1d %5u "
+                                   "%5.2g %5.2g %5.2g%c  "
+                                   "%08X %08zX %08zX 0x%03X %9u%c %7u\n",
             active ? "yes" : "no",
             (mClient == 0) ? getpid_cached : mClient->pid(),
             mStreamType,
@@ -572,12 +587,15 @@
             mAudioTrackServerProxy->getSampleRate(),
             20.0 * log10(float_from_gain(gain_minifloat_unpack_left(vlr))),
             20.0 * log10(float_from_gain(gain_minifloat_unpack_right(vlr))),
+            20.0 * log10(vsVolume.first), // VolumeShaper(s) total volume
+            vsVolume.second ? 'A' : ' ',  // if any VolumeShapers active
             mCblk->mServer,
-            mMainBuffer,
-            mAuxBuffer,
+            (size_t)mMainBuffer, // use %zX as %p appends 0x
+            (size_t)mAuxBuffer,  // use %zX as %p appends 0x
             mCblk->mFlags,
             mAudioTrackServerProxy->getUnderrunFrames(),
-            nowInUnderrun);
+            nowInUnderrun,
+            (unsigned)mAudioTrackServerProxy->framesFlushed() % 10000000); // 7 digits
 }
 
 uint32_t AudioFlinger::PlaybackThread::Track::sampleRate() const {
@@ -594,7 +612,9 @@
     status_t status = mServerProxy->obtainBuffer(&buf);
     buffer->frameCount = buf.mFrameCount;
     buffer->raw = buf.mRaw;
-    if (buf.mFrameCount == 0) {
+    if (buf.mFrameCount == 0 && !isStopping() && !isStopped() && !isPaused()) {
+        ALOGV("underrun,  framesReady(%zu) < framesDesired(%zd), state: %d",
+                buf.mFrameCount, desiredFrames, mState);
         mAudioTrackServerProxy->tallyUnderrunFrames(desiredFrames);
     } else {
         mAudioTrackServerProxy->tallyUnderrunFrames(0);
@@ -903,6 +923,47 @@
     }
 }
 
+VolumeShaper::Status AudioFlinger::PlaybackThread::Track::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation)
+{
+    sp<VolumeShaper::Configuration> newConfiguration;
+
+    if (isOffloadedOrDirect()) {
+        const VolumeShaper::Configuration::OptionFlag optionFlag
+            = configuration->getOptionFlags();
+        if ((optionFlag & VolumeShaper::Configuration::OPTION_FLAG_CLOCK_TIME) == 0) {
+            ALOGW("%s tracks do not support frame counted VolumeShaper,"
+                    " using clock time instead", isOffloaded() ? "Offload" : "Direct");
+            newConfiguration = new VolumeShaper::Configuration(*configuration);
+            newConfiguration->setOptionFlags(
+                VolumeShaper::Configuration::OptionFlag(optionFlag
+                        | VolumeShaper::Configuration::OPTION_FLAG_CLOCK_TIME));
+        }
+    }
+
+    VolumeShaper::Status status = mVolumeHandler->applyVolumeShaper(
+            (newConfiguration.get() != nullptr ? newConfiguration : configuration), operation);
+
+    if (isOffloadedOrDirect()) {
+        // Signal thread to fetch new volume.
+        sp<ThreadBase> thread = mThread.promote();
+        if (thread != 0) {
+             Mutex::Autolock _l(thread->mLock);
+            thread->broadcast_l();
+        }
+    }
+    return status;
+}
+
+sp<VolumeShaper::State> AudioFlinger::PlaybackThread::Track::getVolumeShaperState(int id)
+{
+    // Note: We don't check if Thread exists.
+
+    // mVolumeHandler is thread safe.
+    return mVolumeHandler->getVolumeShaperState(id);
+}
+
 status_t AudioFlinger::PlaybackThread::Track::getTimestamp(AudioTimestamp& timestamp)
 {
     if (!isOffloaded() && !isDirect()) {
@@ -1071,8 +1132,8 @@
 
 void AudioFlinger::PlaybackThread::Track::invalidate()
 {
+    TrackBase::invalidate();
     signalClientFlag(CBLK_INVALID);
-    mIsInvalid = true;
 }
 
 void AudioFlinger::PlaybackThread::Track::disable()
@@ -1171,12 +1232,12 @@
             audio_format_t format,
             audio_channel_mask_t channelMask,
             size_t frameCount,
-            int uid)
+            uid_t uid)
     :   Track(playbackThread, NULL, AUDIO_STREAM_PATCH,
               sampleRate, format, channelMask, frameCount,
               NULL, 0, AUDIO_SESSION_NONE, uid, AUDIO_OUTPUT_FLAG_NONE,
               TYPE_OUTPUT),
-    mActive(false), mSourceThread(sourceThread), mClientProxy(NULL)
+    mActive(false), mSourceThread(sourceThread)
 {
 
     if (mCblk != NULL) {
@@ -1201,7 +1262,6 @@
 AudioFlinger::PlaybackThread::OutputTrack::~OutputTrack()
 {
     clearBufferQueue();
-    delete mClientProxy;
     // superclass destructor will now delete the server proxy and shared memory both refer to
 }
 
@@ -1508,15 +1568,16 @@
             size_t frameCount,
             void *buffer,
             audio_session_t sessionId,
-            int uid,
+            uid_t uid,
             audio_input_flags_t flags,
-            track_type type)
+            track_type type,
+            audio_port_handle_t portId)
     :   TrackBase(thread, client, sampleRate, format,
                   channelMask, frameCount, buffer, sessionId, uid, false /*isOut*/,
                   (type == TYPE_DEFAULT) ?
                           ((flags & AUDIO_INPUT_FLAG_FAST) ? ALLOC_PIPE : ALLOC_CBLK) :
                           ((buffer == NULL) ? ALLOC_LOCAL : ALLOC_NONE),
-                  type),
+                  type, portId),
         mOverflow(false),
         mFramesToDrop(0),
         mResamplerBufferProvider(NULL), // initialize in case of early constructor exit
@@ -1628,6 +1689,7 @@
 
 void AudioFlinger::RecordThread::RecordTrack::invalidate()
 {
+    TrackBase::invalidate();
     // FIXME should use proxy, and needs work
     audio_track_cblk_t* cblk = mCblk;
     android_atomic_or(CBLK_INVALID, &cblk->mFlags);
@@ -1764,4 +1826,76 @@
     mProxy->releaseBuffer(buffer);
 }
 
+
+
+AudioFlinger::MmapThread::MmapTrack::MmapTrack(ThreadBase *thread,
+        uint32_t sampleRate,
+        audio_format_t format,
+        audio_channel_mask_t channelMask,
+        audio_session_t sessionId,
+        uid_t uid,
+        audio_port_handle_t portId)
+    :   TrackBase(thread, NULL, sampleRate, format,
+                  channelMask, 0, NULL, sessionId, uid, false,
+                  ALLOC_NONE,
+                  TYPE_DEFAULT, portId)
+{
+}
+
+AudioFlinger::MmapThread::MmapTrack::~MmapTrack()
+{
+}
+
+status_t AudioFlinger::MmapThread::MmapTrack::initCheck() const
+{
+    return NO_ERROR;
+}
+
+status_t AudioFlinger::MmapThread::MmapTrack::start(AudioSystem::sync_event_t event __unused,
+                                                        audio_session_t triggerSession __unused)
+{
+    return NO_ERROR;
+}
+
+void AudioFlinger::MmapThread::MmapTrack::stop()
+{
+}
+
+// AudioBufferProvider interface
+status_t AudioFlinger::MmapThread::MmapTrack::getNextBuffer(AudioBufferProvider::Buffer* buffer)
+{
+    buffer->frameCount = 0;
+    buffer->raw = nullptr;
+    return INVALID_OPERATION;
+}
+
+// ExtendedAudioBufferProvider interface
+size_t AudioFlinger::MmapThread::MmapTrack::framesReady() const {
+    return 0;
+}
+
+int64_t AudioFlinger::MmapThread::MmapTrack::framesReleased() const
+{
+    return 0;
+}
+
+void AudioFlinger::MmapThread::MmapTrack::onTimestamp(const ExtendedTimestamp &timestamp __unused)
+{
+}
+
+/*static*/ void AudioFlinger::MmapThread::MmapTrack::appendDumpHeader(String8& result)
+{
+    result.append("    Client Fmt Chn mask  SRate\n");
+}
+
+void AudioFlinger::MmapThread::MmapTrack::dump(char* buffer, size_t size)
+{
+    snprintf(buffer, size, "            %6u %3u    %08X %5u\n",
+            mUid,
+            mFormat,
+            mChannelMask,
+            mSampleRate);
+
+}
+
 } // namespace android
diff --git a/services/audioflinger/TypedLogger.cpp b/services/audioflinger/TypedLogger.cpp
new file mode 100644
index 0000000..e08f6f6
--- /dev/null
+++ b/services/audioflinger/TypedLogger.cpp
@@ -0,0 +1,27 @@
+/*
+ *
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioFlinger"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <pthread.h>
+#include "TypedLogger.h"
+
+namespace android {
+thread_local NBLog::Writer *logWriterTLS;
+}
diff --git a/services/audioflinger/TypedLogger.h b/services/audioflinger/TypedLogger.h
new file mode 100644
index 0000000..0b23c7c
--- /dev/null
+++ b/services/audioflinger/TypedLogger.h
@@ -0,0 +1,30 @@
+/*
+ *
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_TYPED_LOGGER_H
+#define ANDROID_TYPED_LOGGER_H
+
+#include <media/nbaio/NBLog.h>
+#define LOGT(fmt, ...) logWriterTLS->logFormat(fmt, ##__VA_ARGS__) // TODO: check null pointer
+
+namespace android {
+extern "C" {
+extern thread_local NBLog::Writer *logWriterTLS;
+}
+} // namespace android
+
+#endif // ANDROID_TYPED_LOGGER_H
diff --git a/services/audioflinger/test-resample.cpp b/services/audioflinger/test-resample.cpp
deleted file mode 100644
index bae3c5b..0000000
--- a/services/audioflinger/test-resample.cpp
+++ /dev/null
@@ -1,515 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <inttypes.h>
-#include <time.h>
-#include <math.h>
-#include <audio_utils/primitives.h>
-#include <audio_utils/sndfile.h>
-#include <utils/Vector.h>
-#include <media/AudioBufferProvider.h>
-#include "AudioResampler.h"
-
-using namespace android;
-
-static bool gVerbose = false;
-
-static int usage(const char* name) {
-    fprintf(stderr,"Usage: %s [-p] [-f] [-F] [-v] [-c channels]"
-                   " [-q {dq|lq|mq|hq|vhq|dlq|dmq|dhq}]"
-                   " [-i input-sample-rate] [-o output-sample-rate]"
-                   " [-O csv] [-P csv] [<input-file>]"
-                   " <output-file>\n", name);
-    fprintf(stderr,"    -p    enable profiling\n");
-    fprintf(stderr,"    -f    enable filter profiling\n");
-    fprintf(stderr,"    -F    enable floating point -q {dlq|dmq|dhq} only");
-    fprintf(stderr,"    -v    verbose : log buffer provider calls\n");
-    fprintf(stderr,"    -c    # channels (1-2 for lq|mq|hq; 1-8 for dlq|dmq|dhq)\n");
-    fprintf(stderr,"    -q    resampler quality\n");
-    fprintf(stderr,"              dq  : default quality\n");
-    fprintf(stderr,"              lq  : low quality\n");
-    fprintf(stderr,"              mq  : medium quality\n");
-    fprintf(stderr,"              hq  : high quality\n");
-    fprintf(stderr,"              vhq : very high quality\n");
-    fprintf(stderr,"              dlq : dynamic low quality\n");
-    fprintf(stderr,"              dmq : dynamic medium quality\n");
-    fprintf(stderr,"              dhq : dynamic high quality\n");
-    fprintf(stderr,"    -i    input file sample rate (ignored if input file is specified)\n");
-    fprintf(stderr,"    -o    output file sample rate\n");
-    fprintf(stderr,"    -O    # frames output per call to resample() in CSV format\n");
-    fprintf(stderr,"    -P    # frames provided per call to resample() in CSV format\n");
-    return -1;
-}
-
-// Convert a list of integers in CSV format to a Vector of those values.
-// Returns the number of elements in the list, or -1 on error.
-int parseCSV(const char *string, Vector<int>& values)
-{
-    // pass 1: count the number of values and do syntax check
-    size_t numValues = 0;
-    bool hadDigit = false;
-    for (const char *p = string; ; ) {
-        switch (*p++) {
-        case '0': case '1': case '2': case '3': case '4':
-        case '5': case '6': case '7': case '8': case '9':
-            hadDigit = true;
-            break;
-        case '\0':
-            if (hadDigit) {
-                // pass 2: allocate and initialize vector of values
-                values.resize(++numValues);
-                values.editItemAt(0) = atoi(p = optarg);
-                for (size_t i = 1; i < numValues; ) {
-                    if (*p++ == ',') {
-                        values.editItemAt(i++) = atoi(p);
-                    }
-                }
-                return numValues;
-            }
-            // fall through
-        case ',':
-            if (hadDigit) {
-                hadDigit = false;
-                numValues++;
-                break;
-            }
-            // fall through
-        default:
-            return -1;
-        }
-    }
-}
-
-int main(int argc, char* argv[]) {
-    const char* const progname = argv[0];
-    bool profileResample = false;
-    bool profileFilter = false;
-    bool useFloat = false;
-    int channels = 1;
-    int input_freq = 0;
-    int output_freq = 0;
-    AudioResampler::src_quality quality = AudioResampler::DEFAULT_QUALITY;
-    Vector<int> Ovalues;
-    Vector<int> Pvalues;
-
-    int ch;
-    while ((ch = getopt(argc, argv, "pfFvc:q:i:o:O:P:")) != -1) {
-        switch (ch) {
-        case 'p':
-            profileResample = true;
-            break;
-        case 'f':
-            profileFilter = true;
-            break;
-        case 'F':
-            useFloat = true;
-            break;
-        case 'v':
-            gVerbose = true;
-            break;
-        case 'c':
-            channels = atoi(optarg);
-            break;
-        case 'q':
-            if (!strcmp(optarg, "dq"))
-                quality = AudioResampler::DEFAULT_QUALITY;
-            else if (!strcmp(optarg, "lq"))
-                quality = AudioResampler::LOW_QUALITY;
-            else if (!strcmp(optarg, "mq"))
-                quality = AudioResampler::MED_QUALITY;
-            else if (!strcmp(optarg, "hq"))
-                quality = AudioResampler::HIGH_QUALITY;
-            else if (!strcmp(optarg, "vhq"))
-                quality = AudioResampler::VERY_HIGH_QUALITY;
-            else if (!strcmp(optarg, "dlq"))
-                quality = AudioResampler::DYN_LOW_QUALITY;
-            else if (!strcmp(optarg, "dmq"))
-                quality = AudioResampler::DYN_MED_QUALITY;
-            else if (!strcmp(optarg, "dhq"))
-                quality = AudioResampler::DYN_HIGH_QUALITY;
-            else {
-                usage(progname);
-                return -1;
-            }
-            break;
-        case 'i':
-            input_freq = atoi(optarg);
-            break;
-        case 'o':
-            output_freq = atoi(optarg);
-            break;
-        case 'O':
-            if (parseCSV(optarg, Ovalues) < 0) {
-                fprintf(stderr, "incorrect syntax for -O option\n");
-                return -1;
-            }
-            break;
-        case 'P':
-            if (parseCSV(optarg, Pvalues) < 0) {
-                fprintf(stderr, "incorrect syntax for -P option\n");
-                return -1;
-            }
-            break;
-        case '?':
-        default:
-            usage(progname);
-            return -1;
-        }
-    }
-
-    if (channels < 1
-            || channels > (quality < AudioResampler::DYN_LOW_QUALITY ? 2 : 8)) {
-        fprintf(stderr, "invalid number of audio channels %d\n", channels);
-        return -1;
-    }
-    if (useFloat && quality < AudioResampler::DYN_LOW_QUALITY) {
-        fprintf(stderr, "float processing is only possible for dynamic resamplers\n");
-        return -1;
-    }
-
-    argc -= optind;
-    argv += optind;
-
-    const char* file_in = NULL;
-    const char* file_out = NULL;
-    if (argc == 1) {
-        file_out = argv[0];
-    } else if (argc == 2) {
-        file_in = argv[0];
-        file_out = argv[1];
-    } else {
-        usage(progname);
-        return -1;
-    }
-
-    // ----------------------------------------------------------
-
-    size_t input_size;
-    void* input_vaddr;
-    if (argc == 2) {
-        SF_INFO info;
-        info.format = 0;
-        SNDFILE *sf = sf_open(file_in, SFM_READ, &info);
-        if (sf == NULL) {
-            perror(file_in);
-            return EXIT_FAILURE;
-        }
-        input_size = info.frames * info.channels * sizeof(short);
-        input_vaddr = malloc(input_size);
-        (void) sf_readf_short(sf, (short *) input_vaddr, info.frames);
-        sf_close(sf);
-        channels = info.channels;
-        input_freq = info.samplerate;
-    } else {
-        // data for testing is exactly (input sampling rate/1000)/2 seconds
-        // so 44.1khz input is 22.05 seconds
-        double k = 1000; // Hz / s
-        double time = (input_freq / 2) / k;
-        size_t input_frames = size_t(input_freq * time);
-        input_size = channels * sizeof(int16_t) * input_frames;
-        input_vaddr = malloc(input_size);
-        int16_t* in = (int16_t*)input_vaddr;
-        for (size_t i=0 ; i<input_frames ; i++) {
-            double t = double(i) / input_freq;
-            double y = sin(M_PI * k * t * t);
-            int16_t yi = floor(y * 32767.0 + 0.5);
-            for (int j = 0; j < channels; j++) {
-                in[i*channels + j] = yi / (1 + j);
-            }
-        }
-    }
-    size_t input_framesize = channels * sizeof(int16_t);
-    size_t input_frames = input_size / input_framesize;
-
-    // For float processing, convert input int16_t to float array
-    if (useFloat) {
-        void *new_vaddr;
-
-        input_framesize = channels * sizeof(float);
-        input_size = input_frames * input_framesize;
-        new_vaddr = malloc(input_size);
-        memcpy_to_float_from_i16(reinterpret_cast<float*>(new_vaddr),
-                reinterpret_cast<int16_t*>(input_vaddr), input_frames * channels);
-        free(input_vaddr);
-        input_vaddr = new_vaddr;
-    }
-
-    // ----------------------------------------------------------
-
-    class Provider: public AudioBufferProvider {
-        const void*     mAddr;      // base address
-        const size_t    mNumFrames; // total frames
-        const size_t    mFrameSize; // size of each frame in bytes
-        size_t          mNextFrame; // index of next frame to provide
-        size_t          mUnrel;     // number of frames not yet released
-        const Vector<int> mPvalues; // number of frames provided per call
-        size_t          mNextPidx;  // index of next entry in mPvalues to use
-    public:
-        Provider(const void* addr, size_t frames, size_t frameSize, const Vector<int>& Pvalues)
-          : mAddr(addr),
-            mNumFrames(frames),
-            mFrameSize(frameSize),
-            mNextFrame(0), mUnrel(0), mPvalues(Pvalues), mNextPidx(0) {
-        }
-        virtual status_t getNextBuffer(Buffer* buffer) {
-            size_t requestedFrames = buffer->frameCount;
-            if (requestedFrames > mNumFrames - mNextFrame) {
-                buffer->frameCount = mNumFrames - mNextFrame;
-            }
-            if (!mPvalues.isEmpty()) {
-                size_t provided = mPvalues[mNextPidx++];
-                printf("mPvalue[%zu]=%zu not %zu\n", mNextPidx-1, provided, buffer->frameCount);
-                if (provided < buffer->frameCount) {
-                    buffer->frameCount = provided;
-                }
-                if (mNextPidx >= mPvalues.size()) {
-                    mNextPidx = 0;
-                }
-            }
-            if (gVerbose) {
-                printf("getNextBuffer() requested %zu frames out of %zu frames available,"
-                        " and returned %zu frames\n",
-                        requestedFrames, (size_t) (mNumFrames - mNextFrame), buffer->frameCount);
-            }
-            mUnrel = buffer->frameCount;
-            if (buffer->frameCount > 0) {
-                buffer->raw = (char *)mAddr + mFrameSize * mNextFrame;
-                return NO_ERROR;
-            } else {
-                buffer->raw = NULL;
-                return NOT_ENOUGH_DATA;
-            }
-        }
-        virtual void releaseBuffer(Buffer* buffer) {
-            if (buffer->frameCount > mUnrel) {
-                fprintf(stderr, "ERROR releaseBuffer() released %zu frames but only %zu available "
-                        "to release\n", buffer->frameCount, mUnrel);
-                mNextFrame += mUnrel;
-                mUnrel = 0;
-            } else {
-                if (gVerbose) {
-                    printf("releaseBuffer() released %zu frames out of %zu frames available "
-                            "to release\n", buffer->frameCount, mUnrel);
-                }
-                mNextFrame += buffer->frameCount;
-                mUnrel -= buffer->frameCount;
-            }
-            buffer->frameCount = 0;
-            buffer->raw = NULL;
-        }
-        void reset() {
-            mNextFrame = 0;
-        }
-    } provider(input_vaddr, input_frames, input_framesize, Pvalues);
-
-    if (gVerbose) {
-        printf("%zu input frames\n", input_frames);
-    }
-
-    audio_format_t format = useFloat ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
-    int output_channels = channels > 2 ? channels : 2; // output is at least stereo samples
-    size_t output_framesize = output_channels * (useFloat ? sizeof(float) : sizeof(int32_t));
-    size_t output_frames = ((int64_t) input_frames * output_freq) / input_freq;
-    size_t output_size = output_frames * output_framesize;
-
-    if (profileFilter) {
-        // Check how fast sample rate changes are that require filter changes.
-        // The delta sample rate changes must indicate a downsampling ratio,
-        // and must be larger than 10% changes.
-        //
-        // On fast devices, filters should be generated between 0.1ms - 1ms.
-        // (single threaded).
-        AudioResampler* resampler = AudioResampler::create(format, channels,
-                8000, quality);
-        int looplimit = 100;
-        timespec start, end;
-        clock_gettime(CLOCK_MONOTONIC, &start);
-        for (int i = 0; i < looplimit; ++i) {
-            resampler->setSampleRate(9000);
-            resampler->setSampleRate(12000);
-            resampler->setSampleRate(20000);
-            resampler->setSampleRate(30000);
-        }
-        clock_gettime(CLOCK_MONOTONIC, &end);
-        int64_t start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
-        int64_t end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
-        int64_t time = end_ns - start_ns;
-        printf("%.2f sample rate changes with filter calculation/sec\n",
-                looplimit * 4 / (time / 1e9));
-
-        // Check how fast sample rate changes are without filter changes.
-        // This should be very fast, probably 0.1us - 1us per sample rate
-        // change.
-        resampler->setSampleRate(1000);
-        looplimit = 1000;
-        clock_gettime(CLOCK_MONOTONIC, &start);
-        for (int i = 0; i < looplimit; ++i) {
-            resampler->setSampleRate(1000+i);
-        }
-        clock_gettime(CLOCK_MONOTONIC, &end);
-        start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
-        end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
-        time = end_ns - start_ns;
-        printf("%.2f sample rate changes without filter calculation/sec\n",
-                looplimit / (time / 1e9));
-        resampler->reset();
-        delete resampler;
-    }
-
-    void* output_vaddr = malloc(output_size);
-    AudioResampler* resampler = AudioResampler::create(format, channels,
-            output_freq, quality);
-
-    resampler->setSampleRate(input_freq);
-    resampler->setVolume(AudioResampler::UNITY_GAIN_FLOAT, AudioResampler::UNITY_GAIN_FLOAT);
-
-    if (profileResample) {
-        /*
-         * For profiling on mobile devices, upon experimentation
-         * it is better to run a few trials with a shorter loop limit,
-         * and take the minimum time.
-         *
-         * Long tests can cause CPU temperature to build up and thermal throttling
-         * to reduce CPU frequency.
-         *
-         * For frequency checks (index=0, or 1, etc.):
-         * "cat /sys/devices/system/cpu/cpu${index}/cpufreq/scaling_*_freq"
-         *
-         * For temperature checks (index=0, or 1, etc.):
-         * "cat /sys/class/thermal/thermal_zone${index}/temp"
-         *
-         * Another way to avoid thermal throttling is to fix the CPU frequency
-         * at a lower level which prevents excessive temperatures.
-         */
-        const int trials = 4;
-        const int looplimit = 4;
-        timespec start, end;
-        int64_t time = 0;
-
-        for (int n = 0; n < trials; ++n) {
-            clock_gettime(CLOCK_MONOTONIC, &start);
-            for (int i = 0; i < looplimit; ++i) {
-                resampler->resample((int*) output_vaddr, output_frames, &provider);
-                provider.reset(); //  during benchmarking reset only the provider
-            }
-            clock_gettime(CLOCK_MONOTONIC, &end);
-            int64_t start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
-            int64_t end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
-            int64_t diff_ns = end_ns - start_ns;
-            if (n == 0 || diff_ns < time) {
-                time = diff_ns;   // save the best out of our trials.
-            }
-        }
-        // Mfrms/s is "Millions of output frames per second".
-        printf("quality: %d  channels: %d  msec: %" PRId64 "  Mfrms/s: %.2lf\n",
-                quality, channels, time/1000000, output_frames * looplimit / (time / 1e9) / 1e6);
-        resampler->reset();
-
-        // TODO fix legacy bug: reset does not clear buffers.
-        // delete and recreate resampler here.
-        delete resampler;
-        resampler = AudioResampler::create(format, channels,
-                    output_freq, quality);
-        resampler->setSampleRate(input_freq);
-        resampler->setVolume(AudioResampler::UNITY_GAIN_FLOAT, AudioResampler::UNITY_GAIN_FLOAT);
-    }
-
-    memset(output_vaddr, 0, output_size);
-    if (gVerbose) {
-        printf("resample() %zu output frames\n", output_frames);
-    }
-    if (Ovalues.isEmpty()) {
-        Ovalues.push(output_frames);
-    }
-    for (size_t i = 0, j = 0; i < output_frames; ) {
-        size_t thisFrames = Ovalues[j++];
-        if (j >= Ovalues.size()) {
-            j = 0;
-        }
-        if (thisFrames == 0 || thisFrames > output_frames - i) {
-            thisFrames = output_frames - i;
-        }
-        resampler->resample((int*) output_vaddr + output_channels*i, thisFrames, &provider);
-        i += thisFrames;
-    }
-    if (gVerbose) {
-        printf("resample() complete\n");
-    }
-    resampler->reset();
-    if (gVerbose) {
-        printf("reset() complete\n");
-    }
-    delete resampler;
-    resampler = NULL;
-
-    // For float processing, convert output format from float to Q4.27,
-    // which is then converted to int16_t for final storage.
-    if (useFloat) {
-        memcpy_to_q4_27_from_float(reinterpret_cast<int32_t*>(output_vaddr),
-                reinterpret_cast<float*>(output_vaddr), output_frames * output_channels);
-    }
-
-    // mono takes left channel only (out of stereo output pair)
-    // stereo and multichannel preserve all channels.
-    int32_t* out = (int32_t*) output_vaddr;
-    int16_t* convert = (int16_t*) malloc(output_frames * channels * sizeof(int16_t));
-
-    const int volumeShift = 12; // shift requirement for Q4.27 to Q.15
-    // round to half towards zero and saturate at int16 (non-dithered)
-    const int roundVal = (1<<(volumeShift-1)) - 1; // volumePrecision > 0
-
-    for (size_t i = 0; i < output_frames; i++) {
-        for (int j = 0; j < channels; j++) {
-            int32_t s = out[i * output_channels + j] + roundVal; // add offset here
-            if (s < 0) {
-                s = (s + 1) >> volumeShift; // round to 0
-                if (s < -32768) {
-                    s = -32768;
-                }
-            } else {
-                s = s >> volumeShift;
-                if (s > 32767) {
-                    s = 32767;
-                }
-            }
-            convert[i * channels + j] = int16_t(s);
-        }
-    }
-
-    // write output to disk
-    SF_INFO info;
-    info.frames = 0;
-    info.samplerate = output_freq;
-    info.channels = channels;
-    info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
-    SNDFILE *sf = sf_open(file_out, SFM_WRITE, &info);
-    if (sf == NULL) {
-        perror(file_out);
-        return EXIT_FAILURE;
-    }
-    (void) sf_writef_short(sf, convert, output_frames);
-    sf_close(sf);
-
-    return EXIT_SUCCESS;
-}
diff --git a/services/audioflinger/tests/Android.mk b/services/audioflinger/tests/Android.mk
deleted file mode 100644
index 3505e0f..0000000
--- a/services/audioflinger/tests/Android.mk
+++ /dev/null
@@ -1,68 +0,0 @@
-# Build the unit tests for audioflinger
-
-#
-# resampler unit test
-#
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SHARED_LIBRARIES := \
-	liblog \
-	libutils \
-	libcutils \
-	libaudioutils \
-	libaudioresampler
-
-LOCAL_C_INCLUDES := \
-	$(call include-path-for, audio-utils) \
-	frameworks/av/services/audioflinger
-
-LOCAL_SRC_FILES := \
-	resampler_tests.cpp
-
-LOCAL_MODULE := resampler_tests
-LOCAL_MODULE_TAGS := tests
-
-LOCAL_CFLAGS := -Werror -Wall
-
-include $(BUILD_NATIVE_TEST)
-
-#
-# audio mixer test tool
-#
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:= \
-	test-mixer.cpp \
-	../AudioMixer.cpp.arm \
-	../BufferProviders.cpp
-
-LOCAL_C_INCLUDES := \
-	$(call include-path-for, audio-effects) \
-	$(call include-path-for, audio-utils) \
-	frameworks/av/services/audioflinger \
-	external/sonic
-
-LOCAL_STATIC_LIBRARIES := \
-	libsndfile
-
-LOCAL_SHARED_LIBRARIES := \
-	libeffects \
-	libnbaio \
-	libaudioresampler \
-	libaudioutils \
-	libdl \
-	libcutils \
-	libutils \
-	liblog \
-	libsonic
-
-LOCAL_MODULE:= test-mixer
-
-LOCAL_MODULE_TAGS := optional
-
-LOCAL_CXX_STL := libc++
-
-LOCAL_CFLAGS := -Werror -Wall
-
-include $(BUILD_EXECUTABLE)
diff --git a/services/audioflinger/tests/README b/services/audioflinger/tests/README
deleted file mode 100644
index 508e960..0000000
--- a/services/audioflinger/tests/README
+++ /dev/null
@@ -1,13 +0,0 @@
-For libsonic dependency:
-pushd external/sonic
-mm
-popd
-
-To build resampler library:
-pushd ..
-Optionally uncomment USE_NEON=false in Android.mk
-mm
-popd
-
-Then build here:
-mm
diff --git a/services/audioflinger/tests/build_and_run_all_unit_tests.sh b/services/audioflinger/tests/build_and_run_all_unit_tests.sh
deleted file mode 100755
index 7f4d456..0000000
--- a/services/audioflinger/tests/build_and_run_all_unit_tests.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/bin/bash
-
-if [ -z "$ANDROID_BUILD_TOP" ]; then
-    echo "Android build environment not set"
-    exit -1
-fi
-
-# ensure we have mm
-. $ANDROID_BUILD_TOP/build/envsetup.sh
-
-pushd $ANDROID_BUILD_TOP/frameworks/av/services/audioflinger/
-pwd
-mm
-
-echo "waiting for device"
-adb root && adb wait-for-device remount
-adb push $OUT/system/lib/libaudioresampler.so /system/lib
-adb push $OUT/data/nativetest/resampler_tests /system/bin
-
-sh $ANDROID_BUILD_TOP/frameworks/av/services/audioflinger/tests/run_all_unit_tests.sh
-
-popd
diff --git a/services/audioflinger/tests/mixer_to_wav_tests.sh b/services/audioflinger/tests/mixer_to_wav_tests.sh
deleted file mode 100755
index d0482a1..0000000
--- a/services/audioflinger/tests/mixer_to_wav_tests.sh
+++ /dev/null
@@ -1,144 +0,0 @@
-#!/bin/bash
-#
-# This script uses test-mixer to generate WAV files
-# for evaluation of the AudioMixer component.
-#
-# Sine and chirp signals are used for input because they
-# show up as clear lines, either horizontal or diagonal,
-# on a spectrogram. This means easy verification of multiple
-# track mixing.
-#
-# After execution, look for created subdirectories like
-# mixer_i_i
-# mixer_i_f
-# mixer_f_f
-#
-# Recommend using a program such as audacity to evaluate
-# the output WAV files, e.g.
-#
-# cd testdir
-# audacity *.wav
-#
-# Using Audacity:
-#
-# Under "Waveform" view mode you can zoom into the
-# start of the WAV file to verify proper ramping.
-#
-# Select "Spectrogram" to see verify the lines
-# (sine = horizontal, chirp = diagonal) which should
-# be clear (except for around the start as the volume
-# ramping causes spectral distortion).
-
-if [ -z "$ANDROID_BUILD_TOP" ]; then
-    echo "Android build environment not set"
-    exit -1
-fi
-
-# ensure we have mm
-. $ANDROID_BUILD_TOP/build/envsetup.sh
-
-pushd $ANDROID_BUILD_TOP/frameworks/av/services/audioflinger/
-
-# build
-pwd
-mm
-
-# send to device
-echo "waiting for device"
-adb root && adb wait-for-device remount
-adb push $OUT/system/lib/libaudioresampler.so /system/lib
-adb push $OUT/system/bin/test-mixer /system/bin
-
-# createwav creates a series of WAV files testing various
-# mixer settings
-# $1 = flags
-# $2 = directory
-function createwav() {
-# create directory if it doesn't exist
-    if [ ! -d $2 ]; then
-        mkdir $2
-    fi
-
-# Test:
-# process__genericResampling with mixed integer and float track input
-# track__Resample / track__genericResample
-    adb shell test-mixer $1 -s 48000 \
-        -o /sdcard/tm48000grif.wav \
-        sine:2,4000,7520 chirp:2,9200 sine:1,3000,18000 \
-        sine:f,6,6000,19000  chirp:i,4,30000
-    adb pull /sdcard/tm48000grif.wav $2
-
-# Test:
-# process__genericResampling
-# track__Resample / track__genericResample
-    adb shell test-mixer $1 -s 48000 \
-        -o /sdcard/tm48000gr.wav \
-        sine:2,4000,7520 chirp:2,9200 sine:1,3000,18000 \
-        sine:6,6000,19000
-    adb pull /sdcard/tm48000gr.wav $2
-
-# Test:
-# process__genericResample
-# track__Resample / track__genericResample
-# track__NoResample / track__16BitsStereo / track__16BitsMono
-# Aux buffer
-    adb shell test-mixer $1 -c 5 -s 9307 \
-        -a /sdcard/aux9307gra.wav -o /sdcard/tm9307gra.wav \
-        sine:4,1000,3000 sine:1,2000,9307 chirp:3,9307
-    adb pull /sdcard/tm9307gra.wav $2
-    adb pull /sdcard/aux9307gra.wav $2
-
-# Test:
-# process__genericNoResampling
-# track__NoResample / track__16BitsStereo / track__16BitsMono
-    adb shell test-mixer $1 -s 32000 \
-        -o /sdcard/tm32000gnr.wav \
-        sine:2,1000,32000 chirp:2,32000  sine:1,3000,32000
-    adb pull /sdcard/tm32000gnr.wav $2
-
-# Test:
-# process__genericNoResampling
-# track__NoResample / track__16BitsStereo / track__16BitsMono
-# Aux buffer
-    adb shell test-mixer $1 -s 32000 \
-        -a /sdcard/aux32000gnra.wav -o /sdcard/tm32000gnra.wav \
-        sine:2,1000,32000 chirp:2,32000  sine:1,3000,32000
-    adb pull /sdcard/tm32000gnra.wav $2
-    adb pull /sdcard/aux32000gnra.wav $2
-
-# Test:
-# process__NoResampleOneTrack / process__OneTrack16BitsStereoNoResampling
-# Downmixer
-    adb shell test-mixer $1 -s 32000 \
-        -o /sdcard/tm32000nrot.wav \
-        sine:6,1000,32000
-    adb pull /sdcard/tm32000nrot.wav $2
-
-# Test:
-# process__NoResampleOneTrack / OneTrack16BitsStereoNoResampling
-# Aux buffer
-    adb shell test-mixer $1 -s 44100 \
-        -a /sdcard/aux44100nrota.wav -o /sdcard/tm44100nrota.wav \
-        sine:2,2000,44100
-    adb pull /sdcard/tm44100nrota.wav $2
-    adb pull /sdcard/aux44100nrota.wav $2
-}
-
-#
-# Call createwav to generate WAV files in various combinations
-#
-# i_i = integer input track, integer mixer output
-# f_f = float input track,   float mixer output
-# i_f = integer input track, float_mixer output
-#
-# If the mixer output is float, then the output WAV file is pcm float.
-#
-# TODO: create a "snr" like "diff" to automatically
-# compare files in these directories together.
-#
-
-createwav "" "tests/mixer_i_i"
-createwav "-f -m" "tests/mixer_f_f"
-createwav "-m" "tests/mixer_i_f"
-
-popd
diff --git a/services/audioflinger/tests/resampler_tests.cpp b/services/audioflinger/tests/resampler_tests.cpp
deleted file mode 100644
index 9e375db..0000000
--- a/services/audioflinger/tests/resampler_tests.cpp
+++ /dev/null
@@ -1,414 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "audioflinger_resampler_tests"
-
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <time.h>
-#include <math.h>
-#include <vector>
-#include <utility>
-#include <iostream>
-#include <cutils/log.h>
-#include <gtest/gtest.h>
-#include <media/AudioBufferProvider.h>
-#include "AudioResampler.h"
-#include "test_utils.h"
-
-void resample(int channels, void *output,
-        size_t outputFrames, const std::vector<size_t> &outputIncr,
-        android::AudioBufferProvider *provider, android::AudioResampler *resampler)
-{
-    for (size_t i = 0, j = 0; i < outputFrames; ) {
-        size_t thisFrames = outputIncr[j++];
-        if (j >= outputIncr.size()) {
-            j = 0;
-        }
-        if (thisFrames == 0 || thisFrames > outputFrames - i) {
-            thisFrames = outputFrames - i;
-        }
-        size_t framesResampled = resampler->resample(
-                (int32_t*) output + channels*i, thisFrames, provider);
-        // we should have enough buffer space, so there is no short count.
-        ASSERT_EQ(thisFrames, framesResampled);
-        i += thisFrames;
-    }
-}
-
-void buffercmp(const void *reference, const void *test,
-        size_t outputFrameSize, size_t outputFrames)
-{
-    for (size_t i = 0; i < outputFrames; ++i) {
-        int check = memcmp((const char*)reference + i * outputFrameSize,
-                (const char*)test + i * outputFrameSize, outputFrameSize);
-        if (check) {
-            ALOGE("Failure at frame %zu", i);
-            ASSERT_EQ(check, 0); /* fails */
-        }
-    }
-}
-
-void testBufferIncrement(size_t channels, bool useFloat,
-        unsigned inputFreq, unsigned outputFreq,
-        enum android::AudioResampler::src_quality quality)
-{
-    const audio_format_t format = useFloat ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
-    // create the provider
-    std::vector<int> inputIncr;
-    SignalProvider provider;
-    if (useFloat) {
-        provider.setChirp<float>(channels,
-                0., outputFreq/2., outputFreq, outputFreq/2000.);
-    } else {
-        provider.setChirp<int16_t>(channels,
-                0., outputFreq/2., outputFreq, outputFreq/2000.);
-    }
-    provider.setIncr(inputIncr);
-
-    // calculate the output size
-    size_t outputFrames = ((int64_t) provider.getNumFrames() * outputFreq) / inputFreq;
-    size_t outputFrameSize = channels * (useFloat ? sizeof(float) : sizeof(int32_t));
-    size_t outputSize = outputFrameSize * outputFrames;
-    outputSize &= ~7;
-
-    // create the resampler
-    android::AudioResampler* resampler;
-
-    resampler = android::AudioResampler::create(format, channels, outputFreq, quality);
-    resampler->setSampleRate(inputFreq);
-    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
-            android::AudioResampler::UNITY_GAIN_FLOAT);
-
-    // set up the reference run
-    std::vector<size_t> refIncr;
-    refIncr.push_back(outputFrames);
-    void* reference = malloc(outputSize);
-    resample(channels, reference, outputFrames, refIncr, &provider, resampler);
-
-    provider.reset();
-
-#if 0
-    /* this test will fail - API interface issue: reset() does not clear internal buffers */
-    resampler->reset();
-#else
-    delete resampler;
-    resampler = android::AudioResampler::create(format, channels, outputFreq, quality);
-    resampler->setSampleRate(inputFreq);
-    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
-            android::AudioResampler::UNITY_GAIN_FLOAT);
-#endif
-
-    // set up the test run
-    std::vector<size_t> outIncr;
-    outIncr.push_back(1);
-    outIncr.push_back(2);
-    outIncr.push_back(3);
-    void* test = malloc(outputSize);
-    inputIncr.push_back(1);
-    inputIncr.push_back(3);
-    provider.setIncr(inputIncr);
-    resample(channels, test, outputFrames, outIncr, &provider, resampler);
-
-    // check
-    buffercmp(reference, test, outputFrameSize, outputFrames);
-
-    free(reference);
-    free(test);
-    delete resampler;
-}
-
-template <typename T>
-inline double sqr(T v)
-{
-    double dv = static_cast<double>(v);
-    return dv * dv;
-}
-
-template <typename T>
-double signalEnergy(T *start, T *end, unsigned stride)
-{
-    double accum = 0;
-
-    for (T *p = start; p < end; p += stride) {
-        accum += sqr(*p);
-    }
-    unsigned count = (end - start + stride - 1) / stride;
-    return accum / count;
-}
-
-// TI = resampler input type, int16_t or float
-// TO = resampler output type, int32_t or float
-template <typename TI, typename TO>
-void testStopbandDownconversion(size_t channels,
-        unsigned inputFreq, unsigned outputFreq,
-        unsigned passband, unsigned stopband,
-        enum android::AudioResampler::src_quality quality)
-{
-    // create the provider
-    std::vector<int> inputIncr;
-    SignalProvider provider;
-    provider.setChirp<TI>(channels,
-            0., inputFreq/2., inputFreq, inputFreq/2000.);
-    provider.setIncr(inputIncr);
-
-    // calculate the output size
-    size_t outputFrames = ((int64_t) provider.getNumFrames() * outputFreq) / inputFreq;
-    size_t outputFrameSize = channels * sizeof(TO);
-    size_t outputSize = outputFrameSize * outputFrames;
-    outputSize &= ~7;
-
-    // create the resampler
-    android::AudioResampler* resampler;
-
-    resampler = android::AudioResampler::create(
-            is_same<TI, int16_t>::value ? AUDIO_FORMAT_PCM_16_BIT : AUDIO_FORMAT_PCM_FLOAT,
-            channels, outputFreq, quality);
-    resampler->setSampleRate(inputFreq);
-    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
-            android::AudioResampler::UNITY_GAIN_FLOAT);
-
-    // set up the reference run
-    std::vector<size_t> refIncr;
-    refIncr.push_back(outputFrames);
-    void* reference = malloc(outputSize);
-    resample(channels, reference, outputFrames, refIncr, &provider, resampler);
-
-    TO *out = reinterpret_cast<TO *>(reference);
-
-    // check signal energy in passband
-    const unsigned passbandFrame = passband * outputFreq / 1000.;
-    const unsigned stopbandFrame = stopband * outputFreq / 1000.;
-
-    // check each channel separately
-    for (size_t i = 0; i < channels; ++i) {
-        double passbandEnergy = signalEnergy(out, out + passbandFrame * channels, channels);
-        double stopbandEnergy = signalEnergy(out + stopbandFrame * channels,
-                out + outputFrames * channels, channels);
-        double dbAtten = -10. * log10(stopbandEnergy / passbandEnergy);
-        ASSERT_GT(dbAtten, 60.);
-
-#if 0
-        // internal verification
-        printf("if:%d  of:%d  pbf:%d  sbf:%d  sbe: %f  pbe: %f  db: %.2f\n",
-                provider.getNumFrames(), outputFrames,
-                passbandFrame, stopbandFrame, stopbandEnergy, passbandEnergy, dbAtten);
-        for (size_t i = 0; i < 10; ++i) {
-            std::cout << out[i+passbandFrame*channels] << std::endl;
-        }
-        for (size_t i = 0; i < 10; ++i) {
-            std::cout << out[i+stopbandFrame*channels] << std::endl;
-        }
-#endif
-    }
-
-    free(reference);
-    delete resampler;
-}
-
-/* Buffer increment test
- *
- * We compare a reference output, where we consume and process the entire
- * buffer at a time, and a test output, where we provide small chunks of input
- * data and process small chunks of output (which may not be equivalent in size).
- *
- * Two subtests - fixed phase (3:2 down) and interpolated phase (147:320 up)
- */
-TEST(audioflinger_resampler, bufferincrement_fixedphase) {
-    // all of these work
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            android::AudioResampler::LOW_QUALITY,
-            android::AudioResampler::MED_QUALITY,
-            android::AudioResampler::HIGH_QUALITY,
-            android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testBufferIncrement(2, false, 48000, 32000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, bufferincrement_interpolatedphase) {
-    // all of these work except low quality
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-//           android::AudioResampler::LOW_QUALITY,
-            android::AudioResampler::MED_QUALITY,
-            android::AudioResampler::HIGH_QUALITY,
-            android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testBufferIncrement(2, false, 22050, 48000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, bufferincrement_fixedphase_multi) {
-    // only dynamic quality
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testBufferIncrement(4, false, 48000, 32000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, bufferincrement_interpolatedphase_multi_float) {
-    // only dynamic quality
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testBufferIncrement(8, true, 22050, 48000, kQualityArray[i]);
-    }
-}
-
-/* Simple aliasing test
- *
- * This checks stopband response of the chirp signal to make sure frequencies
- * are properly suppressed.  It uses downsampling because the stopband can be
- * clearly isolated by input frequencies exceeding the output sample rate (nyquist).
- */
-TEST(audioflinger_resampler, stopbandresponse_integer) {
-    // not all of these may work (old resamplers fail on downsampling)
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            //android::AudioResampler::LOW_QUALITY,
-            //android::AudioResampler::MED_QUALITY,
-            //android::AudioResampler::HIGH_QUALITY,
-            //android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    // in this test we assume a maximum transition band between 12kHz and 20kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<int16_t, int32_t>(
-                2, 48000, 32000, 12000, 20000, kQualityArray[i]);
-    }
-
-    // in this test we assume a maximum transition band between 7kHz and 15kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    // (the weird ratio triggers interpolative resampling)
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<int16_t, int32_t>(
-                2, 48000, 22101, 7000, 15000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, stopbandresponse_integer_multichannel) {
-    // not all of these may work (old resamplers fail on downsampling)
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            //android::AudioResampler::LOW_QUALITY,
-            //android::AudioResampler::MED_QUALITY,
-            //android::AudioResampler::HIGH_QUALITY,
-            //android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    // in this test we assume a maximum transition band between 12kHz and 20kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<int16_t, int32_t>(
-                8, 48000, 32000, 12000, 20000, kQualityArray[i]);
-    }
-
-    // in this test we assume a maximum transition band between 7kHz and 15kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    // (the weird ratio triggers interpolative resampling)
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<int16_t, int32_t>(
-                8, 48000, 22101, 7000, 15000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, stopbandresponse_float) {
-    // not all of these may work (old resamplers fail on downsampling)
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            //android::AudioResampler::LOW_QUALITY,
-            //android::AudioResampler::MED_QUALITY,
-            //android::AudioResampler::HIGH_QUALITY,
-            //android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    // in this test we assume a maximum transition band between 12kHz and 20kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<float, float>(
-                2, 48000, 32000, 12000, 20000, kQualityArray[i]);
-    }
-
-    // in this test we assume a maximum transition band between 7kHz and 15kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    // (the weird ratio triggers interpolative resampling)
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<float, float>(
-                2, 48000, 22101, 7000, 15000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, stopbandresponse_float_multichannel) {
-    // not all of these may work (old resamplers fail on downsampling)
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            //android::AudioResampler::LOW_QUALITY,
-            //android::AudioResampler::MED_QUALITY,
-            //android::AudioResampler::HIGH_QUALITY,
-            //android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    // in this test we assume a maximum transition band between 12kHz and 20kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<float, float>(
-                8, 48000, 32000, 12000, 20000, kQualityArray[i]);
-    }
-
-    // in this test we assume a maximum transition band between 7kHz and 15kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    // (the weird ratio triggers interpolative resampling)
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<float, float>(
-                8, 48000, 22101, 7000, 15000, kQualityArray[i]);
-    }
-}
-
diff --git a/services/audioflinger/tests/run_all_unit_tests.sh b/services/audioflinger/tests/run_all_unit_tests.sh
deleted file mode 100755
index 113f39e..0000000
--- a/services/audioflinger/tests/run_all_unit_tests.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/bash
-
-if [ -z "$ANDROID_BUILD_TOP" ]; then
-    echo "Android build environment not set"
-    exit -1
-fi
-
-echo "waiting for device"
-adb root && adb wait-for-device remount
-
-#adb shell /system/bin/resampler_tests
-adb shell /data/nativetest/resampler_tests/resampler_tests
diff --git a/services/audioflinger/tests/test-mixer.cpp b/services/audioflinger/tests/test-mixer.cpp
deleted file mode 100644
index 65e22da..0000000
--- a/services/audioflinger/tests/test-mixer.cpp
+++ /dev/null
@@ -1,328 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <inttypes.h>
-#include <math.h>
-#include <vector>
-#include <audio_utils/primitives.h>
-#include <audio_utils/sndfile.h>
-#include <media/AudioBufferProvider.h>
-#include "AudioMixer.h"
-#include "test_utils.h"
-
-/* Testing is typically through creation of an output WAV file from several
- * source inputs, to be later analyzed by an audio program such as Audacity.
- *
- * Sine or chirp functions are typically more useful as input to the mixer
- * as they show up as straight lines on a spectrogram if successfully mixed.
- *
- * A sample shell script is provided: mixer_to_wave_tests.sh
- */
-
-using namespace android;
-
-static void usage(const char* name) {
-    fprintf(stderr, "Usage: %s [-f] [-m] [-c channels]"
-                    " [-s sample-rate] [-o <output-file>] [-a <aux-buffer-file>] [-P csv]"
-                    " (<input-file> | <command>)+\n", name);
-    fprintf(stderr, "    -f    enable floating point input track by default\n");
-    fprintf(stderr, "    -m    enable floating point mixer output\n");
-    fprintf(stderr, "    -c    number of mixer output channels\n");
-    fprintf(stderr, "    -s    mixer sample-rate\n");
-    fprintf(stderr, "    -o    <output-file> WAV file, pcm16 (or float if -m specified)\n");
-    fprintf(stderr, "    -a    <aux-buffer-file>\n");
-    fprintf(stderr, "    -P    # frames provided per call to resample() in CSV format\n");
-    fprintf(stderr, "    <input-file> is a WAV file\n");
-    fprintf(stderr, "    <command> can be 'sine:[(i|f),]<channels>,<frequency>,<samplerate>'\n");
-    fprintf(stderr, "                     'chirp:[(i|f),]<channels>,<samplerate>'\n");
-}
-
-static int writeFile(const char *filename, const void *buffer,
-        uint32_t sampleRate, uint32_t channels, size_t frames, bool isBufferFloat) {
-    if (filename == NULL) {
-        return 0; // ok to pass in NULL filename
-    }
-    // write output to file.
-    SF_INFO info;
-    info.frames = 0;
-    info.samplerate = sampleRate;
-    info.channels = channels;
-    info.format = SF_FORMAT_WAV | (isBufferFloat ? SF_FORMAT_FLOAT : SF_FORMAT_PCM_16);
-    printf("saving file:%s  channels:%u  samplerate:%u  frames:%zu\n",
-            filename, info.channels, info.samplerate, frames);
-    SNDFILE *sf = sf_open(filename, SFM_WRITE, &info);
-    if (sf == NULL) {
-        perror(filename);
-        return EXIT_FAILURE;
-    }
-    if (isBufferFloat) {
-        (void) sf_writef_float(sf, (float*)buffer, frames);
-    } else {
-        (void) sf_writef_short(sf, (short*)buffer, frames);
-    }
-    sf_close(sf);
-    return EXIT_SUCCESS;
-}
-
-const char *parseFormat(const char *s, bool *useFloat) {
-    if (!strncmp(s, "f,", 2)) {
-        *useFloat = true;
-        return s + 2;
-    }
-    if (!strncmp(s, "i,", 2)) {
-        *useFloat = false;
-        return s + 2;
-    }
-    return s;
-}
-
-int main(int argc, char* argv[]) {
-    const char* const progname = argv[0];
-    bool useInputFloat = false;
-    bool useMixerFloat = false;
-    bool useRamp = true;
-    uint32_t outputSampleRate = 48000;
-    uint32_t outputChannels = 2; // stereo for now
-    std::vector<int> Pvalues;
-    const char* outputFilename = NULL;
-    const char* auxFilename = NULL;
-    std::vector<int32_t> names;
-    std::vector<SignalProvider> providers;
-    std::vector<audio_format_t> formats;
-
-    for (int ch; (ch = getopt(argc, argv, "fmc:s:o:a:P:")) != -1;) {
-        switch (ch) {
-        case 'f':
-            useInputFloat = true;
-            break;
-        case 'm':
-            useMixerFloat = true;
-            break;
-        case 'c':
-            outputChannels = atoi(optarg);
-            break;
-        case 's':
-            outputSampleRate = atoi(optarg);
-            break;
-        case 'o':
-            outputFilename = optarg;
-            break;
-        case 'a':
-            auxFilename = optarg;
-            break;
-        case 'P':
-            if (parseCSV(optarg, Pvalues) < 0) {
-                fprintf(stderr, "incorrect syntax for -P option\n");
-                return EXIT_FAILURE;
-            }
-            break;
-        case '?':
-        default:
-            usage(progname);
-            return EXIT_FAILURE;
-        }
-    }
-    argc -= optind;
-    argv += optind;
-
-    if (argc == 0) {
-        usage(progname);
-        return EXIT_FAILURE;
-    }
-    if ((unsigned)argc > AudioMixer::MAX_NUM_TRACKS) {
-        fprintf(stderr, "too many tracks: %d > %u", argc, AudioMixer::MAX_NUM_TRACKS);
-        return EXIT_FAILURE;
-    }
-
-    size_t outputFrames = 0;
-
-    // create providers for each track
-    names.resize(argc);
-    providers.resize(argc);
-    formats.resize(argc);
-    for (int i = 0; i < argc; ++i) {
-        static const char chirp[] = "chirp:";
-        static const char sine[] = "sine:";
-        static const double kSeconds = 1;
-        bool useFloat = useInputFloat;
-
-        if (!strncmp(argv[i], chirp, strlen(chirp))) {
-            std::vector<int> v;
-            const char *s = parseFormat(argv[i] + strlen(chirp), &useFloat);
-
-            parseCSV(s, v);
-            if (v.size() == 2) {
-                printf("creating chirp(%d %d)\n", v[0], v[1]);
-                if (useFloat) {
-                    providers[i].setChirp<float>(v[0], 0, v[1]/2, v[1], kSeconds);
-                    formats[i] = AUDIO_FORMAT_PCM_FLOAT;
-                } else {
-                    providers[i].setChirp<int16_t>(v[0], 0, v[1]/2, v[1], kSeconds);
-                    formats[i] = AUDIO_FORMAT_PCM_16_BIT;
-                }
-                providers[i].setIncr(Pvalues);
-            } else {
-                fprintf(stderr, "malformed input '%s'\n", argv[i]);
-            }
-        } else if (!strncmp(argv[i], sine, strlen(sine))) {
-            std::vector<int> v;
-            const char *s = parseFormat(argv[i] + strlen(sine), &useFloat);
-
-            parseCSV(s, v);
-            if (v.size() == 3) {
-                printf("creating sine(%d %d %d)\n", v[0], v[1], v[2]);
-                if (useFloat) {
-                    providers[i].setSine<float>(v[0], v[1], v[2], kSeconds);
-                    formats[i] = AUDIO_FORMAT_PCM_FLOAT;
-                } else {
-                    providers[i].setSine<int16_t>(v[0], v[1], v[2], kSeconds);
-                    formats[i] = AUDIO_FORMAT_PCM_16_BIT;
-                }
-                providers[i].setIncr(Pvalues);
-            } else {
-                fprintf(stderr, "malformed input '%s'\n", argv[i]);
-            }
-        } else {
-            printf("creating filename(%s)\n", argv[i]);
-            if (useInputFloat) {
-                providers[i].setFile<float>(argv[i]);
-                formats[i] = AUDIO_FORMAT_PCM_FLOAT;
-            } else {
-                providers[i].setFile<short>(argv[i]);
-                formats[i] = AUDIO_FORMAT_PCM_16_BIT;
-            }
-            providers[i].setIncr(Pvalues);
-        }
-        // calculate the number of output frames
-        size_t nframes = (int64_t) providers[i].getNumFrames() * outputSampleRate
-                / providers[i].getSampleRate();
-        if (i == 0 || outputFrames > nframes) { // choose minimum for outputFrames
-            outputFrames = nframes;
-        }
-    }
-
-    // create the output buffer.
-    const size_t outputFrameSize = outputChannels
-            * (useMixerFloat ? sizeof(float) : sizeof(int16_t));
-    const size_t outputSize = outputFrames * outputFrameSize;
-    const audio_channel_mask_t outputChannelMask =
-            audio_channel_out_mask_from_count(outputChannels);
-    void *outputAddr = NULL;
-    (void) posix_memalign(&outputAddr, 32, outputSize);
-    memset(outputAddr, 0, outputSize);
-
-    // create the aux buffer, if needed.
-    const size_t auxFrameSize = sizeof(int32_t); // Q4.27 always
-    const size_t auxSize = outputFrames * auxFrameSize;
-    void *auxAddr = NULL;
-    if (auxFilename) {
-        (void) posix_memalign(&auxAddr, 32, auxSize);
-        memset(auxAddr, 0, auxSize);
-    }
-
-    // create the mixer.
-    const size_t mixerFrameCount = 320; // typical numbers may range from 240 or 960
-    AudioMixer *mixer = new AudioMixer(mixerFrameCount, outputSampleRate);
-    audio_format_t mixerFormat = useMixerFloat
-            ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
-    float f = AudioMixer::UNITY_GAIN_FLOAT / providers.size(); // normalize volume by # tracks
-    static float f0; // zero
-
-    // set up the tracks.
-    for (size_t i = 0; i < providers.size(); ++i) {
-        //printf("track %d out of %d\n", i, providers.size());
-        uint32_t channelMask = audio_channel_out_mask_from_count(providers[i].getNumChannels());
-        int32_t name = mixer->getTrackName(channelMask,
-                formats[i], AUDIO_SESSION_OUTPUT_MIX);
-        ALOG_ASSERT(name >= 0);
-        names[i] = name;
-        mixer->setBufferProvider(name, &providers[i]);
-        mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::MAIN_BUFFER,
-                (void *)outputAddr);
-        mixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::MIXER_FORMAT,
-                (void *)(uintptr_t)mixerFormat);
-        mixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::FORMAT,
-                (void *)(uintptr_t)formats[i]);
-        mixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::MIXER_CHANNEL_MASK,
-                (void *)(uintptr_t)outputChannelMask);
-        mixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::CHANNEL_MASK,
-                (void *)(uintptr_t)channelMask);
-        mixer->setParameter(
-                name,
-                AudioMixer::RESAMPLE,
-                AudioMixer::SAMPLE_RATE,
-                (void *)(uintptr_t)providers[i].getSampleRate());
-        if (useRamp) {
-            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f0);
-            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f0);
-            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME0, &f);
-            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME1, &f);
-        } else {
-            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f);
-            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f);
-        }
-        if (auxFilename) {
-            mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::AUX_BUFFER,
-                    (void *) auxAddr);
-            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::AUXLEVEL, &f0);
-            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::AUXLEVEL, &f);
-        }
-        mixer->enable(name);
-    }
-
-    // pump the mixer to process data.
-    size_t i;
-    for (i = 0; i < outputFrames - mixerFrameCount; i += mixerFrameCount) {
-        for (size_t j = 0; j < names.size(); ++j) {
-            mixer->setParameter(names[j], AudioMixer::TRACK, AudioMixer::MAIN_BUFFER,
-                    (char *) outputAddr + i * outputFrameSize);
-            if (auxFilename) {
-                mixer->setParameter(names[j], AudioMixer::TRACK, AudioMixer::AUX_BUFFER,
-                        (char *) auxAddr + i * auxFrameSize);
-            }
-        }
-        mixer->process();
-    }
-    outputFrames = i; // reset output frames to the data actually produced.
-
-    // write to files
-    writeFile(outputFilename, outputAddr,
-            outputSampleRate, outputChannels, outputFrames, useMixerFloat);
-    if (auxFilename) {
-        // Aux buffer is always in q4_27 format for now.
-        // memcpy_to_i16_from_q4_27(), but with stereo frame count (not sample count)
-        ditherAndClamp((int32_t*)auxAddr, (int32_t*)auxAddr, outputFrames >> 1);
-        writeFile(auxFilename, auxAddr, outputSampleRate, 1, outputFrames, false);
-    }
-
-    delete mixer;
-    free(outputAddr);
-    free(auxAddr);
-    return EXIT_SUCCESS;
-}
diff --git a/services/audioflinger/tests/test_utils.h b/services/audioflinger/tests/test_utils.h
deleted file mode 100644
index 283c768..0000000
--- a/services/audioflinger/tests/test_utils.h
+++ /dev/null
@@ -1,307 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_TEST_UTILS_H
-#define ANDROID_AUDIO_TEST_UTILS_H
-
-#include <audio_utils/sndfile.h>
-
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
-#endif
-
-template<typename T, typename U>
-struct is_same
-{
-    static const bool value = false;
-};
-
-template<typename T>
-struct is_same<T, T>  // partial specialization
-{
-    static const bool value = true;
-};
-
-template<typename T>
-static inline T convertValue(double val)
-{
-    if (is_same<T, int16_t>::value) {
-        return floor(val * 32767.0 + 0.5);
-    } else if (is_same<T, int32_t>::value) {
-        return floor(val * (1UL<<31) + 0.5);
-    }
-    return val; // assume float or double
-}
-
-// Convert a list of integers in CSV format to a Vector of those values.
-// Returns the number of elements in the list, or -1 on error.
-static inline int parseCSV(const char *string, std::vector<int>& values)
-{
-    // pass 1: count the number of values and do syntax check
-    size_t numValues = 0;
-    bool hadDigit = false;
-    for (const char *p = string; ; ) {
-        switch (*p++) {
-        case '0': case '1': case '2': case '3': case '4':
-        case '5': case '6': case '7': case '8': case '9':
-            hadDigit = true;
-            break;
-        case '\0':
-            if (hadDigit) {
-                // pass 2: allocate and initialize vector of values
-                values.resize(++numValues);
-                values[0] = atoi(p = string);
-                for (size_t i = 1; i < numValues; ) {
-                    if (*p++ == ',') {
-                        values[i++] = atoi(p);
-                    }
-                }
-                return numValues;
-            }
-            // fall through
-        case ',':
-            if (hadDigit) {
-                hadDigit = false;
-                numValues++;
-                break;
-            }
-            // fall through
-        default:
-            return -1;
-        }
-    }
-}
-
-/* Creates a type-independent audio buffer provider from
- * a buffer base address, size, framesize, and input increment array.
- *
- * No allocation or deallocation of the provided buffer is done.
- */
-class TestProvider : public android::AudioBufferProvider {
-public:
-    TestProvider(void* addr, size_t frames, size_t frameSize,
-            const std::vector<int>& inputIncr)
-    : mAddr(addr),
-      mNumFrames(frames),
-      mFrameSize(frameSize),
-      mNextFrame(0), mUnrel(0), mInputIncr(inputIncr), mNextIdx(0)
-    {
-    }
-
-    TestProvider()
-    : mAddr(NULL), mNumFrames(0), mFrameSize(0),
-      mNextFrame(0), mUnrel(0), mNextIdx(0)
-    {
-    }
-
-    void setIncr(const std::vector<int>& inputIncr) {
-        mInputIncr = inputIncr;
-        mNextIdx = 0;
-    }
-
-    virtual android::status_t getNextBuffer(Buffer* buffer)
-    {
-        size_t requestedFrames = buffer->frameCount;
-        if (requestedFrames > mNumFrames - mNextFrame) {
-            buffer->frameCount = mNumFrames - mNextFrame;
-        }
-        if (!mInputIncr.empty()) {
-            size_t provided = mInputIncr[mNextIdx++];
-            ALOGV("getNextBuffer() mValue[%zu]=%zu not %zu",
-                    mNextIdx-1, provided, buffer->frameCount);
-            if (provided < buffer->frameCount) {
-                buffer->frameCount = provided;
-            }
-            if (mNextIdx >= mInputIncr.size()) {
-                mNextIdx = 0;
-            }
-        }
-        ALOGV("getNextBuffer() requested %zu frames out of %zu frames available"
-                " and returned %zu frames",
-                requestedFrames, mNumFrames - mNextFrame, buffer->frameCount);
-        mUnrel = buffer->frameCount;
-        if (buffer->frameCount > 0) {
-            buffer->raw = (char *)mAddr + mFrameSize * mNextFrame;
-            return android::NO_ERROR;
-        } else {
-            buffer->raw = NULL;
-            return android::NOT_ENOUGH_DATA;
-        }
-    }
-
-    virtual void releaseBuffer(Buffer* buffer)
-    {
-        if (buffer->frameCount > mUnrel) {
-            ALOGE("releaseBuffer() released %zu frames but only %zu available "
-                    "to release", buffer->frameCount, mUnrel);
-            mNextFrame += mUnrel;
-            mUnrel = 0;
-        } else {
-
-            ALOGV("releaseBuffer() released %zu frames out of %zu frames available "
-                    "to release", buffer->frameCount, mUnrel);
-            mNextFrame += buffer->frameCount;
-            mUnrel -= buffer->frameCount;
-        }
-        buffer->frameCount = 0;
-        buffer->raw = NULL;
-    }
-
-    void reset()
-    {
-        mNextFrame = 0;
-    }
-
-    size_t getNumFrames()
-    {
-        return mNumFrames;
-    }
-
-
-protected:
-    void* mAddr;   // base address
-    size_t mNumFrames;   // total frames
-    int mFrameSize;      // frame size (# channels * bytes per sample)
-    size_t mNextFrame;   // index of next frame to provide
-    size_t mUnrel;       // number of frames not yet released
-    std::vector<int> mInputIncr; // number of frames provided per call
-    size_t mNextIdx;     // index of next entry in mInputIncr to use
-};
-
-/* Creates a buffer filled with a sine wave.
- */
-template<typename T>
-static void createSine(void *vbuffer, size_t frames,
-        size_t channels, double sampleRate, double freq)
-{
-    double tscale = 1. / sampleRate;
-    T* buffer = reinterpret_cast<T*>(vbuffer);
-    for (size_t i = 0; i < frames; ++i) {
-        double t = i * tscale;
-        double y = sin(2. * M_PI * freq * t);
-        T yt = convertValue<T>(y);
-
-        for (size_t j = 0; j < channels; ++j) {
-            buffer[i*channels + j] = yt / T(j + 1);
-        }
-    }
-}
-
-/* Creates a buffer filled with a chirp signal (a sine wave sweep).
- *
- * When creating the Chirp, note that the frequency is the true sinusoidal
- * frequency not the sampling rate.
- *
- * http://en.wikipedia.org/wiki/Chirp
- */
-template<typename T>
-static void createChirp(void *vbuffer, size_t frames,
-        size_t channels, double sampleRate,  double minfreq, double maxfreq)
-{
-    double tscale = 1. / sampleRate;
-    T *buffer = reinterpret_cast<T*>(vbuffer);
-    // note the chirp constant k has a divide-by-two.
-    double k = (maxfreq - minfreq) / (2. * tscale * frames);
-    for (size_t i = 0; i < frames; ++i) {
-        double t = i * tscale;
-        double y = sin(2. * M_PI * (k * t + minfreq) * t);
-        T yt = convertValue<T>(y);
-
-        for (size_t j = 0; j < channels; ++j) {
-            buffer[i*channels + j] = yt / T(j + 1);
-        }
-    }
-}
-
-/* This derived class creates a buffer provider of datatype T,
- * consisting of an input signal, e.g. from createChirp().
- * The number of frames can be obtained from the base class
- * TestProvider::getNumFrames().
- */
-
-class SignalProvider : public TestProvider {
-public:
-    SignalProvider()
-    : mSampleRate(0),
-      mChannels(0)
-    {
-    }
-
-    virtual ~SignalProvider()
-    {
-        free(mAddr);
-        mAddr = NULL;
-    }
-
-    template <typename T>
-    void setChirp(size_t channels, double minfreq, double maxfreq, double sampleRate, double time)
-    {
-        createBufferByFrames<T>(channels, sampleRate, sampleRate*time);
-        createChirp<T>(mAddr, mNumFrames, mChannels, mSampleRate, minfreq, maxfreq);
-    }
-
-    template <typename T>
-    void setSine(size_t channels,
-            double freq, double sampleRate, double time)
-    {
-        createBufferByFrames<T>(channels, sampleRate, sampleRate*time);
-        createSine<T>(mAddr, mNumFrames,  mChannels, mSampleRate, freq);
-    }
-
-    template <typename T>
-    void setFile(const char *file_in)
-    {
-        SF_INFO info;
-        info.format = 0;
-        SNDFILE *sf = sf_open(file_in, SFM_READ, &info);
-        if (sf == NULL) {
-            perror(file_in);
-            return;
-        }
-        createBufferByFrames<T>(info.channels, info.samplerate, info.frames);
-        if (is_same<T, float>::value) {
-            (void) sf_readf_float(sf, (float *) mAddr, mNumFrames);
-        } else if (is_same<T, short>::value) {
-            (void) sf_readf_short(sf, (short *) mAddr, mNumFrames);
-        }
-        sf_close(sf);
-    }
-
-    template <typename T>
-    void createBufferByFrames(size_t channels, uint32_t sampleRate, size_t frames)
-    {
-        mNumFrames = frames;
-        mChannels = channels;
-        mFrameSize = mChannels * sizeof(T);
-        free(mAddr);
-        mAddr = malloc(mFrameSize * mNumFrames);
-        mSampleRate = sampleRate;
-    }
-
-    uint32_t getSampleRate() const {
-        return mSampleRate;
-    }
-
-    uint32_t getNumChannels() const {
-        return mChannels;
-    }
-
-protected:
-    uint32_t mSampleRate;
-    uint32_t mChannels;
-};
-
-#endif // ANDROID_AUDIO_TEST_UTILS_H
diff --git a/services/audiopolicy/Android.mk b/services/audiopolicy/Android.mk
index c8e5148..7cd2b81 100644
--- a/services/audiopolicy/Android.mk
+++ b/services/audiopolicy/Android.mk
@@ -4,23 +4,12 @@
 
 LOCAL_SRC_FILES:= \
     service/AudioPolicyService.cpp \
-    service/AudioPolicyEffects.cpp
-
-ifeq ($(USE_LEGACY_AUDIO_POLICY), 1)
-LOCAL_SRC_FILES += \
-    service/AudioPolicyInterfaceImplLegacy.cpp \
-    service/AudioPolicyClientImplLegacy.cpp
-
-    LOCAL_CFLAGS += -DUSE_LEGACY_AUDIO_POLICY
-else
-LOCAL_SRC_FILES += \
+    service/AudioPolicyEffects.cpp \
     service/AudioPolicyInterfaceImpl.cpp \
     service/AudioPolicyClientImpl.cpp
-endif
 
 LOCAL_C_INCLUDES := \
     $(TOPDIR)frameworks/av/services/audioflinger \
-    $(call include-path-for, audio-effects) \
     $(call include-path-for, audio-utils) \
     $(TOPDIR)frameworks/av/services/audiopolicy/common/include \
     $(TOPDIR)frameworks/av/services/audiopolicy/engine/interface \
@@ -31,18 +20,13 @@
     libutils \
     liblog \
     libbinder \
-    libmedia \
-    libhardware \
+    libaudioclient \
     libhardware_legacy \
-    libserviceutility
-
-ifneq ($(USE_LEGACY_AUDIO_POLICY), 1)
-LOCAL_SHARED_LIBRARIES += \
-    libaudiopolicymanager
-endif
+    libserviceutility \
+    libaudiopolicymanager \
+    libmedia_helper
 
 LOCAL_STATIC_LIBRARIES := \
-    libmedia_helper \
     libaudiopolicycomponents
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
@@ -54,8 +38,6 @@
 
 include $(BUILD_SHARED_LIBRARY)
 
-ifneq ($(USE_LEGACY_AUDIO_POLICY), 1)
-
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= managerdefault/AudioPolicyManager.cpp
@@ -92,13 +74,12 @@
     $(TOPDIR)frameworks/av/services/audiopolicy/utilities
 
 LOCAL_STATIC_LIBRARIES := \
-    libmedia_helper \
     libaudiopolicycomponents
 
-ifeq ($(USE_XML_AUDIO_POLICY_CONF), 1)
-LOCAL_STATIC_LIBRARIES += libxml2
+LOCAL_SHARED_LIBRARIES += libmedia_helper
 
-LOCAL_SHARED_LIBRARIES += libicuuc
+ifeq ($(USE_XML_AUDIO_POLICY_CONF), 1)
+LOCAL_SHARED_LIBRARIES += libicuuc libxml2
 
 LOCAL_CFLAGS += -DUSE_XML_AUDIO_POLICY_CONF
 endif #ifeq ($(USE_XML_AUDIO_POLICY_CONF), 1)
@@ -137,7 +118,6 @@
 include $(BUILD_SHARED_LIBRARY)
 
 endif
-endif
 
 #######################################################################
 # Recursive call sub-folder Android.mk
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index a215b95..60ed1d6 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -21,8 +21,6 @@
 #include <media/AudioPolicy.h>
 #include <utils/String8.h>
 
-#include <hardware/audio_policy.h>
-
 namespace android {
 
 // ----------------------------------------------------------------------------
@@ -67,6 +65,16 @@
         API_INPUT_TELEPHONY_RX, // used for capture from telephony RX path
     } input_type_t;
 
+   enum {
+        API_INPUT_CONCURRENCY_NONE = 0,
+        API_INPUT_CONCURRENCY_CALL = (1 << 0),      // Concurrency with a call
+        API_INPUT_CONCURRENCY_CAPTURE = (1 << 1),   // Concurrency with another capture
+
+        API_INPUT_CONCURRENCY_ALL = (API_INPUT_CONCURRENCY_CALL | API_INPUT_CONCURRENCY_CAPTURE),
+   };
+
+   typedef uint32_t concurrency_type__mask_t;
+
 public:
     virtual ~AudioPolicyInterface() {}
     //
@@ -81,6 +89,10 @@
     // retrieve a device connection status
     virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
                                                                           const char *device_address) = 0;
+    // indicate a change in device configuration
+    virtual status_t handleDeviceConfigChange(audio_devices_t device,
+                                              const char *device_address,
+                                              const char *device_name) = 0;
     // indicate a change in phone state. Valid phones states are defined by audio_mode_t
     virtual void setPhoneState(audio_mode_t state) = 0;
     // force using a specific device category for the specified usage
@@ -108,12 +120,10 @@
                                         audio_session_t session,
                                         audio_stream_type_t *stream,
                                         uid_t uid,
-                                        uint32_t samplingRate,
-                                        audio_format_t format,
-                                        audio_channel_mask_t channelMask,
+                                        const audio_config_t *config,
                                         audio_output_flags_t flags,
                                         int selectedDeviceId,
-                                        const audio_offload_info_t *offloadInfo) = 0;
+                                        audio_port_handle_t *portId) = 0;
     // indicates to the audio policy manager that the output starts being used by corresponding stream.
     virtual status_t startOutput(audio_io_handle_t output,
                                  audio_stream_type_t stream,
@@ -132,15 +142,15 @@
                                      audio_io_handle_t *input,
                                      audio_session_t session,
                                      uid_t uid,
-                                     uint32_t samplingRate,
-                                     audio_format_t format,
-                                     audio_channel_mask_t channelMask,
+                                     const audio_config_base_t *config,
                                      audio_input_flags_t flags,
                                      audio_port_handle_t selectedDeviceId,
-                                     input_type_t *inputType) = 0;
+                                     input_type_t *inputType,
+                                     audio_port_handle_t *portId) = 0;
     // indicates to the audio policy manager that the input starts being used.
     virtual status_t startInput(audio_io_handle_t input,
-                                audio_session_t session) = 0;
+                                audio_session_t session,
+                                concurrency_type__mask_t *concurrency) = 0;
     // indicates to the audio policy manager that the input stops being used.
     virtual status_t stopInput(audio_io_handle_t input,
                                audio_session_t session) = 0;
@@ -220,14 +230,14 @@
 
     virtual status_t releaseSoundTriggerSession(audio_session_t session) = 0;
 
-    virtual status_t registerPolicyMixes(Vector<AudioMix> mixes) = 0;
+    virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes) = 0;
     virtual status_t unregisterPolicyMixes(Vector<AudioMix> mixes) = 0;
 
     virtual status_t startAudioSource(const struct audio_port_config *source,
                                       const audio_attributes_t *attributes,
-                                      audio_io_handle_t *handle,
+                                      audio_patch_handle_t *handle,
                                       uid_t uid) = 0;
-    virtual status_t stopAudioSource(audio_io_handle_t handle) = 0;
+    virtual status_t stopAudioSource(audio_patch_handle_t handle) = 0;
 
     virtual status_t setMasterMono(bool mono) = 0;
     virtual status_t getMasterMono(bool *mono) = 0;
diff --git a/services/audiopolicy/common/include/Volume.h b/services/audiopolicy/common/include/Volume.h
old mode 100755
new mode 100644
index d091179..1239fe0
--- a/services/audiopolicy/common/include/Volume.h
+++ b/services/audiopolicy/common/include/Volume.h
@@ -124,16 +124,16 @@
         case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET:
         case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP:
         case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES:
+        case AUDIO_DEVICE_OUT_USB_HEADSET:
             return DEVICE_CATEGORY_HEADSET;
         case AUDIO_DEVICE_OUT_LINE:
         case AUDIO_DEVICE_OUT_AUX_DIGITAL:
-            /*USB?  Remote submix?*/
+        case AUDIO_DEVICE_OUT_USB_DEVICE:
             return DEVICE_CATEGORY_EXT_MEDIA;
         case AUDIO_DEVICE_OUT_SPEAKER:
         case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT:
         case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER:
         case AUDIO_DEVICE_OUT_USB_ACCESSORY:
-        case AUDIO_DEVICE_OUT_USB_DEVICE:
         case AUDIO_DEVICE_OUT_REMOTE_SUBMIX:
         default:
             return DEVICE_CATEGORY_SPEAKER;
diff --git a/services/audiopolicy/common/include/policy.h b/services/audiopolicy/common/include/policy.h
old mode 100755
new mode 100644
index 55ee91f..31f0550
--- a/services/audiopolicy/common/include/policy.h
+++ b/services/audiopolicy/common/include/policy.h
@@ -33,9 +33,9 @@
 
 /**
  * A device mask for all audio input devices that are considered "virtual" when evaluating
- * active inputs in getActiveInput()
+ * active inputs in getActiveInputs()
  */
-#define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL  (AUDIO_DEVICE_IN_REMOTE_SUBMIX|AUDIO_DEVICE_IN_FM_TUNER)
+#define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL  (AUDIO_DEVICE_IN_REMOTE_SUBMIX)
 
 
 /**
@@ -47,16 +47,6 @@
 #define APM_AUDIO_DEVICE_IN_MATCH_ADDRESS_ALL (AUDIO_DEVICE_IN_REMOTE_SUBMIX|AUDIO_DEVICE_IN_BUS)
 
 /**
- * Stub audio output device. Used in policy configuration file on platforms without audio outputs.
- * This alias value to AUDIO_DEVICE_OUT_DEFAULT is only used in the audio policy context.
- */
-#define AUDIO_DEVICE_OUT_STUB AUDIO_DEVICE_OUT_DEFAULT
-/**
- * Stub audio input device. Used in policy configuration file on platforms without audio inputs.
- * This alias value to AUDIO_DEVICE_IN_DEFAULT is only used in the audio policy context.
- */
-#define AUDIO_DEVICE_IN_STUB AUDIO_DEVICE_IN_DEFAULT
-/**
  * Alias to AUDIO_DEVICE_OUT_DEFAULT defined for clarification when this value is used by volume
  * control APIs (e.g setStreamVolumeIndex().
  */
@@ -109,6 +99,44 @@
             ((device & APM_AUDIO_DEVICE_OUT_MATCH_ADDRESS_ALL) != 0));
 }
 
+/**
+ * Returns the priority of a given audio source for capture. The priority is used when more than one
+ * capture session is active on a given input stream to determine which session drives routing and
+ * effect configuration.
+ *
+ * @param[in] inputSource to consider. Valid sources are:
+ * - AUDIO_SOURCE_VOICE_COMMUNICATION
+ * - AUDIO_SOURCE_CAMCORDER
+ * - AUDIO_SOURCE_MIC
+ * - AUDIO_SOURCE_FM_TUNER
+ * - AUDIO_SOURCE_VOICE_RECOGNITION
+ * - AUDIO_SOURCE_HOTWORD
+ *
+ * @return the corresponding input source priority or 0 if priority is irrelevant for this source.
+ *      This happens when the specified source cannot share a given input stream (e.g remote submix)
+ *      The higher the value, the higher the priority.
+ */
+static inline int32_t source_priority(audio_source_t inputSource)
+{
+    switch (inputSource) {
+    case AUDIO_SOURCE_VOICE_COMMUNICATION:
+        return 6;
+    case AUDIO_SOURCE_CAMCORDER:
+        return 5;
+    case AUDIO_SOURCE_MIC:
+        return 4;
+    case AUDIO_SOURCE_FM_TUNER:
+        return 3;
+    case AUDIO_SOURCE_VOICE_RECOGNITION:
+        return 2;
+    case AUDIO_SOURCE_HOTWORD:
+        return 1;
+    default:
+        break;
+    }
+    return 0;
+}
+
 /* Indicates if audio formats are equivalent when considering a match between
  * audio HAL supported formats and client requested formats
  */
diff --git a/services/audiopolicy/common/managerdefinitions/Android.mk b/services/audiopolicy/common/managerdefinitions/Android.mk
index d7da0ad..7968103 100644
--- a/services/audiopolicy/common/managerdefinitions/Android.mk
+++ b/services/audiopolicy/common/managerdefinitions/Android.mk
@@ -25,9 +25,12 @@
 
 LOCAL_SHARED_LIBRARIES := \
     libcutils \
+    libmedia \
     libutils \
     liblog \
 
+LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := libmedia
+
 LOCAL_C_INCLUDES := \
     $(LOCAL_PATH)/include \
     $(TOPDIR)frameworks/av/services/audiopolicy/common/include \
@@ -38,9 +41,7 @@
 
 LOCAL_SRC_FILES += src/Serializer.cpp
 
-LOCAL_STATIC_LIBRARIES += libxml2
-
-LOCAL_SHARED_LIBRARIES += libicuuc
+LOCAL_SHARED_LIBRARIES += libicuuc libxml2
 
 LOCAL_C_INCLUDES += \
     $(TOPDIR)external/libxml2/include \
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioInputDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/AudioInputDescriptor.h
index f2b39f2..b169bac 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioInputDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioInputDescriptor.h
@@ -34,7 +34,7 @@
 class AudioInputDescriptor: public AudioPortConfig, public AudioSessionInfoProvider
 {
 public:
-    AudioInputDescriptor(const sp<IOProfile>& profile);
+    explicit AudioInputDescriptor(const sp<IOProfile>& profile);
     void setIoHandle(audio_io_handle_t ioHandle);
     audio_port_handle_t getId() const;
     audio_module_handle_t getModuleHandle() const;
@@ -57,13 +57,15 @@
     void clearPreemptedSessions();
     bool isActive() const;
     bool isSourceActive(audio_source_t source) const;
-    audio_source_t inputSource() const;
+    audio_source_t inputSource(bool activeOnly = false) const;
     bool isSoundTrigger() const;
     status_t addAudioSession(audio_session_t session,
                              const sp<AudioSession>& audioSession);
     status_t removeAudioSession(audio_session_t session);
     sp<AudioSession> getAudioSession(audio_session_t session) const;
-    AudioSessionCollection getActiveAudioSessions() const;
+    AudioSessionCollection getAudioSessions(bool activeOnly) const;
+    size_t getAudioSessionCount(bool activeOnly) const;
+    audio_source_t getHighestPrioritySource(bool activeOnly) const;
 
     // implementation of AudioSessionInfoProvider
     virtual audio_config_base_t getConfig() const;
@@ -102,7 +104,7 @@
      * Only considers inputs from physical devices (e.g. main mic, headset mic) when
      * ignoreVirtualInputs is true.
      */
-    audio_io_handle_t getActiveInput(bool ignoreVirtualInputs = true);
+    Vector<sp <AudioInputDescriptor> > getActiveInputs(bool ignoreVirtualInputs = true);
 
     audio_devices_t getSupportedDevices(audio_io_handle_t handle) const;
 
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
index dd3f8ae..c09cb5a 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
@@ -16,6 +16,8 @@
 
 #pragma once
 
+#include <sys/types.h>
+
 #include "AudioPort.h"
 #include <RoutingStrategy.h>
 #include <utils/Errors.h>
@@ -45,7 +47,7 @@
 
     audio_port_handle_t getId() const;
     virtual audio_devices_t device() const;
-    virtual bool sharesHwModuleWith(const sp<AudioOutputDescriptor> outputDesc);
+    virtual bool sharesHwModuleWith(const sp<AudioOutputDescriptor>& outputDesc);
     virtual audio_devices_t supportedDevices();
     virtual bool isDuplicated() const { return false; }
     virtual uint32_t latency() { return 0; }
@@ -102,7 +104,7 @@
     void setIoHandle(audio_io_handle_t ioHandle);
 
     virtual audio_devices_t device() const;
-    virtual bool sharesHwModuleWith(const sp<AudioOutputDescriptor> outputDesc);
+    virtual bool sharesHwModuleWith(const sp<AudioOutputDescriptor>& outputDesc);
     virtual audio_devices_t supportedDevices();
     virtual uint32_t latency();
     virtual bool isDuplicated() const { return (mOutput1 != NULL && mOutput2 != NULL); }
@@ -128,6 +130,7 @@
     sp<SwAudioOutputDescriptor> mOutput1;    // used by duplicated outputs: first output
     sp<SwAudioOutputDescriptor> mOutput2;    // used by duplicated outputs: second output
     uint32_t mDirectOpenCount; // number of clients using this output (direct outputs only)
+    audio_session_t mDirectClientSession; // session id of the direct output client
     uint32_t mGlobalRefCount;  // non-stream-specific ref count
 };
 
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h b/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h
index 8f5ebef..0bacef7 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h
@@ -19,7 +19,7 @@
 #include <utils/RefBase.h>
 #include <media/AudioPolicy.h>
 #include <utils/KeyedVector.h>
-#include <hardware/audio.h>
+#include <system/audio.h>
 #include <utils/String8.h>
 
 namespace android {
@@ -43,6 +43,8 @@
 
     void setMix(AudioMix &mix);
 
+    status_t dump(int fd, int spaces, int index) const;
+
 private:
     AudioMix    mMix;                   // Audio policy mix descriptor
     sp<SwAudioOutputDescriptor> mOutput;  // Corresponding output stream
@@ -52,11 +54,11 @@
 class AudioPolicyMixCollection : public DefaultKeyedVector<String8, sp<AudioPolicyMix> >
 {
 public:
-    status_t getAudioPolicyMix(String8 address, sp<AudioPolicyMix> &policyMix) const;
+    status_t getAudioPolicyMix(const String8& address, sp<AudioPolicyMix> &policyMix) const;
 
-    status_t registerMix(String8 address, AudioMix mix, sp<SwAudioOutputDescriptor> desc);
+    status_t registerMix(const String8& address, AudioMix mix, sp<SwAudioOutputDescriptor> desc);
 
-    status_t unregisterMix(String8 address);
+    status_t unregisterMix(const String8& address);
 
     void closeOutput(sp<SwAudioOutputDescriptor> &desc);
 
@@ -77,6 +79,8 @@
                                                   AudioMix **policyMix);
 
     status_t getInputMixForAttr(audio_attributes_t attr, AudioMix **policyMix);
+
+    status_t dump(int fd) const;
 };
 
 }; // namespace android
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioPort.h b/services/audiopolicy/common/managerdefinitions/include/AudioPort.h
index 211ec98..ded2285 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioPort.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioPort.h
@@ -71,7 +71,7 @@
 
     virtual void toAudioPort(struct audio_port *port) const;
 
-    virtual void importAudioPort(const sp<AudioPort> port);
+    virtual void importAudioPort(const sp<AudioPort>& port);
 
     void addAudioProfile(const sp<AudioProfile> &profile) { mProfiles.add(profile); }
 
@@ -118,7 +118,7 @@
                                         audio_format_t targetFormat);
 
     audio_module_handle_t getModuleHandle() const;
-    uint32_t getModuleVersion() const;
+    uint32_t getModuleVersionMajor() const;
     const char *getModuleName() const;
 
     bool useInputChannelMask() const
@@ -166,6 +166,10 @@
     virtual void toAudioPortConfig(struct audio_port_config *dstConfig,
                                    const struct audio_port_config *srcConfig = NULL) const = 0;
     virtual sp<AudioPort> getAudioPort() const = 0;
+    virtual bool hasSameHwModuleAs(const sp<AudioPortConfig>& other) const {
+        return (other != 0) &&
+                (other->getAudioPort()->getModuleHandle() == getAudioPort()->getModuleHandle());
+    }
     uint32_t mSamplingRate;
     audio_format_t mFormat;
     audio_channel_mask_t mChannelMask;
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioRoute.h b/services/audiopolicy/common/managerdefinitions/include/AudioRoute.h
index 67e197f..df54f48 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioRoute.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioRoute.h
@@ -36,7 +36,7 @@
 class AudioRoute  : public virtual RefBase
 {
 public:
-    AudioRoute(audio_route_type_t type) : mType(type) {}
+    explicit AudioRoute(audio_route_type_t type) : mType(type) {}
 
     void setSources(const AudioPortVector &sources) { mSources = sources; }
     const AudioPortVector &getSources() const { return mSources; }
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioSession.h b/services/audiopolicy/common/managerdefinitions/include/AudioSession.h
index 388c25d..18fba25 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioSession.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioSession.h
@@ -91,8 +91,10 @@
     uint32_t getOpenCount() const;
 
     AudioSessionCollection getActiveSessions() const;
+    size_t getActiveSessionCount() const;
     bool hasActiveSession() const;
     bool isSourceActive(audio_source_t source) const;
+    audio_source_t getHighestPrioritySource(bool activeOnly) const;
 
     // implementation of AudioSessionInfoUpdateListener
     virtual void onSessionInfoUpdate() const;
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioSourceDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/AudioSourceDescriptor.h
index 4ab7cf0..7e1e24d 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioSourceDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioSourceDescriptor.h
@@ -50,7 +50,7 @@
 };
 
 class AudioSourceCollection :
-        public DefaultKeyedVector< audio_io_handle_t, sp<AudioSourceDescriptor> >
+        public DefaultKeyedVector< audio_patch_handle_t, sp<AudioSourceDescriptor> >
 {
 public:
     status_t dump(int fd) const;
diff --git a/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
index ed2450c..9a52d22 100644
--- a/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
@@ -30,7 +30,7 @@
 {
 public:
      // Note that empty name refers by convention to a generic device.
-    DeviceDescriptor(audio_devices_t type, const String8 &tagName = String8(""));
+    explicit DeviceDescriptor(audio_devices_t type, const String8 &tagName = String8(""));
 
     virtual ~DeviceDescriptor() {}
 
@@ -48,7 +48,7 @@
     // AudioPort
     virtual void attach(const sp<HwModule>& module);
     virtual void toAudioPort(struct audio_port *port) const;
-    virtual void importAudioPort(const sp<AudioPort> port);
+    virtual void importAudioPort(const sp<AudioPort>& port);
 
     audio_port_handle_t getId() const;
     status_t dump(int fd, int spaces, int index, bool verbose = true) const;
@@ -76,11 +76,11 @@
 
     audio_devices_t types() const { return mDeviceTypes; }
 
-    sp<DeviceDescriptor> getDevice(audio_devices_t type, String8 address) const;
+    sp<DeviceDescriptor> getDevice(audio_devices_t type, const String8& address) const;
     DeviceVector getDevicesFromType(audio_devices_t types) const;
     sp<DeviceDescriptor> getDeviceFromId(audio_port_handle_t id) const;
     sp<DeviceDescriptor> getDeviceFromTagName(const String8 &tagName) const;
-    DeviceVector getDevicesFromTypeAddr(audio_devices_t type, String8 address) const;
+    DeviceVector getDevicesFromTypeAddr(audio_devices_t type, const String8& address) const;
 
     audio_devices_t getDevicesFromHwModule(audio_module_handle_t moduleHandle) const;
 
diff --git a/services/audiopolicy/common/managerdefinitions/include/EffectDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/EffectDescriptor.h
index ab650c0..9ea0aea 100644
--- a/services/audiopolicy/common/managerdefinitions/include/EffectDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/EffectDescriptor.h
@@ -17,7 +17,7 @@
 #pragma once
 
 #include <RoutingStrategy.h>
-#include <hardware/audio_effect.h>
+#include <system/audio_effect.h>
 #include <utils/KeyedVector.h>
 #include <utils/RefBase.h>
 #include <utils/Errors.h>
diff --git a/services/audiopolicy/common/managerdefinitions/include/HwModule.h b/services/audiopolicy/common/managerdefinitions/include/HwModule.h
index dd2993d..29b6b9c 100644
--- a/services/audiopolicy/common/managerdefinitions/include/HwModule.h
+++ b/services/audiopolicy/common/managerdefinitions/include/HwModule.h
@@ -18,7 +18,6 @@
 
 #include "DeviceDescriptor.h"
 #include "AudioRoute.h"
-#include <hardware/audio.h>
 #include <utils/RefBase.h>
 #include <utils/String8.h>
 #include <utils/Errors.h>
@@ -40,7 +39,7 @@
 class HwModule : public RefBase
 {
 public:
-    HwModule(const char *name, uint32_t halVersion = AUDIO_DEVICE_API_VERSION_MIN);
+    explicit HwModule(const char *name, uint32_t halVersionMajor = 0, uint32_t halVersionMinor = 0);
     ~HwModule();
 
     const char *getName() const { return mName.string(); }
@@ -55,8 +54,11 @@
 
     void setProfiles(const IOProfileCollection &profiles);
 
-    void setHalVersion(uint32_t halVersion) { mHalVersion = halVersion; }
-    uint32_t getHalVersion() const { return mHalVersion; }
+    void setHalVersion(uint32_t major, uint32_t minor) {
+        mHalVersion = (major << 8) | (minor & 0xff);
+    }
+    uint32_t getHalVersionMajor() const { return mHalVersion >> 8; }
+    uint32_t getHalVersionMinor() const { return mHalVersion & 0xff; }
 
     sp<DeviceDescriptor> getRouteSinkDevice(const sp<AudioRoute> &route) const;
     DeviceVector getRouteSourceDevices(const sp<AudioRoute> &route) const;
@@ -66,12 +68,12 @@
     status_t addInputProfile(const sp<IOProfile> &profile);
     status_t addProfile(const sp<IOProfile> &profile);
 
-    status_t addOutputProfile(String8 name, const audio_config_t *config,
-            audio_devices_t device, String8 address);
-    status_t removeOutputProfile(String8 name);
-    status_t addInputProfile(String8 name, const audio_config_t *config,
-            audio_devices_t device, String8 address);
-    status_t removeInputProfile(String8 name);
+    status_t addOutputProfile(const String8& name, const audio_config_t *config,
+            audio_devices_t device, const String8& address);
+    status_t removeOutputProfile(const String8& name);
+    status_t addInputProfile(const String8& name, const audio_config_t *config,
+            audio_devices_t device, const String8& address);
+    status_t removeInputProfile(const String8& name);
 
     audio_module_handle_t getHandle() const { return mHandle; }
 
diff --git a/services/audiopolicy/common/managerdefinitions/include/IOProfile.h b/services/audiopolicy/common/managerdefinitions/include/IOProfile.h
index dd20e93..ec04ef7 100644
--- a/services/audiopolicy/common/managerdefinitions/include/IOProfile.h
+++ b/services/audiopolicy/common/managerdefinitions/include/IOProfile.h
@@ -44,7 +44,7 @@
     // For input, flags is interpreted as audio_input_flags_t.
     // TODO: merge audio_output_flags_t and audio_input_flags_t.
     bool isCompatibleProfile(audio_devices_t device,
-                             String8 address,
+                             const String8& address,
                              uint32_t samplingRate,
                              uint32_t *updatedSamplingRate,
                              audio_format_t format,
@@ -110,13 +110,13 @@
 class InputProfile : public IOProfile
 {
 public:
-    InputProfile(const String8 &name) : IOProfile(name, AUDIO_PORT_ROLE_SINK) {}
+    explicit InputProfile(const String8 &name) : IOProfile(name, AUDIO_PORT_ROLE_SINK) {}
 };
 
 class OutputProfile : public IOProfile
 {
 public:
-    OutputProfile(const String8 &name) : IOProfile(name, AUDIO_PORT_ROLE_SOURCE) {}
+    explicit OutputProfile(const String8 &name) : IOProfile(name, AUDIO_PORT_ROLE_SOURCE) {}
 };
 
 }; // namespace android
diff --git a/services/audiopolicy/common/managerdefinitions/include/SessionRoute.h b/services/audiopolicy/common/managerdefinitions/include/SessionRoute.h
index b4feaf0..75bfd9d 100644
--- a/services/audiopolicy/common/managerdefinitions/include/SessionRoute.h
+++ b/services/audiopolicy/common/managerdefinitions/include/SessionRoute.h
@@ -86,7 +86,7 @@
         MAPTYPE_OUTPUT = 1
     } session_route_map_type_t;
 
-    SessionRouteMap(session_route_map_type_t mapType) :
+    explicit SessionRouteMap(session_route_map_type_t mapType) :
         mMapType(mapType)
     {}
 
@@ -106,7 +106,7 @@
     void addRoute(audio_session_t session,
                   audio_stream_type_t streamType,
                   audio_source_t source,
-                  sp<DeviceDescriptor> deviceDescriptor,
+                  const sp<DeviceDescriptor>& deviceDescriptor,
                   uid_t uid);
 
 private:
diff --git a/services/audiopolicy/common/managerdefinitions/include/StreamDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/StreamDescriptor.h
index 424df84..8822927 100644
--- a/services/audiopolicy/common/managerdefinitions/include/StreamDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/StreamDescriptor.h
@@ -20,7 +20,7 @@
 #include <utils/KeyedVector.h>
 #include <utils/StrongPointer.h>
 #include <utils/SortedVector.h>
-#include <hardware/audio.h>
+#include <system/audio.h>
 
 namespace android {
 
diff --git a/services/audiopolicy/common/managerdefinitions/include/TypeConverter.h b/services/audiopolicy/common/managerdefinitions/include/TypeConverter.h
index 1612714..9e705aa 100644
--- a/services/audiopolicy/common/managerdefinitions/include/TypeConverter.h
+++ b/services/audiopolicy/common/managerdefinitions/include/TypeConverter.h
@@ -16,190 +16,37 @@
 
 #pragma once
 
+#include <media/TypeConverter.h>
+
 #include "policy.h"
 #include <Volume.h>
-#include <system/audio.h>
-#include <convert/convert.h>
-#include <utils/Log.h>
-#include <string>
-#include <utils/Vector.h>
-#include <utils/SortedVector.h>
 
 namespace android {
 
-struct SampleRateTraits
-{
-    typedef uint32_t Type;
-    typedef SortedVector<Type> Collection;
-};
-struct DeviceTraits
-{
-    typedef audio_devices_t Type;
-    typedef Vector<Type> Collection;
-};
-struct OutputFlagTraits
-{
-    typedef audio_output_flags_t Type;
-    typedef Vector<Type> Collection;
-};
-struct InputFlagTraits
-{
-    typedef audio_input_flags_t Type;
-    typedef Vector<Type> Collection;
-};
-struct FormatTraits
-{
-    typedef audio_format_t Type;
-    typedef Vector<Type> Collection;
-};
-struct ChannelTraits
-{
-    typedef audio_channel_mask_t Type;
-    typedef SortedVector<Type> Collection;
-};
-struct OutputChannelTraits : public ChannelTraits {};
-struct InputChannelTraits : public ChannelTraits {};
-struct ChannelIndexTraits : public ChannelTraits {};
-struct GainModeTraits
-{
-    typedef audio_gain_mode_t Type;
-    typedef Vector<Type> Collection;
-};
-struct StreamTraits
-{
-  typedef audio_stream_type_t Type;
-  typedef Vector<Type> Collection;
-};
 struct DeviceCategoryTraits
 {
-  typedef device_category Type;
-  typedef Vector<Type> Collection;
+    typedef device_category Type;
+    typedef Vector<Type> Collection;
 };
-template <typename T>
-struct DefaultTraits
+struct MixTypeTraits
 {
-  typedef T Type;
-  typedef Vector<Type> Collection;
+    typedef int32_t Type;
+    typedef Vector<Type> Collection;
+};
+struct RouteFlagTraits
+{
+    typedef uint32_t Type;
+    typedef Vector<Type> Collection;
+};
+struct RuleTraits
+{
+    typedef uint32_t Type;
+    typedef Vector<Type> Collection;
 };
 
-template <class Traits>
-static void collectionFromString(const std::string &str, typename Traits::Collection &collection,
-                                 const char *del = "|")
-{
-    char *literal = strdup(str.c_str());
-    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
-        typename Traits::Type value;
-        if (utilities::convertTo<std::string, typename Traits::Type >(cstr, value)) {
-            collection.add(value);
-        }
-    }
-    free(literal);
-}
-
-template <class Traits>
-class TypeConverter
-{
-public:
-    static bool toString(const typename Traits::Type &value, std::string &str);
-
-    static bool fromString(const std::string &str, typename Traits::Type &result);
-
-    static void collectionFromString(const std::string &str,
-                                     typename Traits::Collection &collection,
-                                     const char *del = "|");
-
-    static uint32_t maskFromString(const std::string &str, const char *del = "|");
-
-protected:
-    struct Table {
-        const char *literal;
-        typename Traits::Type value;
-    };
-
-    static const Table mTable[];
-    static const size_t mSize;
-};
-
-typedef TypeConverter<DeviceTraits> DeviceConverter;
-typedef TypeConverter<OutputFlagTraits> OutputFlagConverter;
-typedef TypeConverter<InputFlagTraits> InputFlagConverter;
-typedef TypeConverter<FormatTraits> FormatConverter;
-typedef TypeConverter<OutputChannelTraits> OutputChannelConverter;
-typedef TypeConverter<InputChannelTraits> InputChannelConverter;
-typedef TypeConverter<ChannelIndexTraits> ChannelIndexConverter;
-typedef TypeConverter<GainModeTraits> GainModeConverter;
-typedef TypeConverter<StreamTraits> StreamTypeConverter;
 typedef TypeConverter<DeviceCategoryTraits> DeviceCategoryConverter;
-
-inline
-static SampleRateTraits::Collection samplingRatesFromString(const std::string &samplingRates,
-                                                            const char *del = "|")
-{
-    SampleRateTraits::Collection samplingRateCollection;
-    collectionFromString<SampleRateTraits>(samplingRates, samplingRateCollection, del);
-    return samplingRateCollection;
-}
-
-inline
-static FormatTraits::Collection formatsFromString(const std::string &formats, const char *del = "|")
-{
-    FormatTraits::Collection formatCollection;
-    FormatConverter::collectionFromString(formats, formatCollection, del);
-    return formatCollection;
-}
-
-inline
-static audio_format_t formatFromString(const std::string &literalFormat)
-{
-    audio_format_t format;
-    if (literalFormat.empty()) {
-        return gDynamicFormat;
-    }
-    FormatConverter::fromString(literalFormat, format);
-    return format;
-}
-
-inline
-static audio_channel_mask_t channelMaskFromString(const std::string &literalChannels)
-{
-    audio_channel_mask_t channels;
-    if (!OutputChannelConverter::fromString(literalChannels, channels) ||
-            !InputChannelConverter::fromString(literalChannels, channels)) {
-        return AUDIO_CHANNEL_INVALID;
-    }
-    return channels;
-}
-
-inline
-static ChannelTraits::Collection channelMasksFromString(const std::string &channels,
-                                                        const char *del = "|")
-{
-    ChannelTraits::Collection channelMaskCollection;
-    OutputChannelConverter::collectionFromString(channels, channelMaskCollection, del);
-    InputChannelConverter::collectionFromString(channels, channelMaskCollection, del);
-    ChannelIndexConverter::collectionFromString(channels, channelMaskCollection, del);
-    return channelMaskCollection;
-}
-
-inline
-static InputChannelTraits::Collection inputChannelMasksFromString(const std::string &inChannels,
-                                                                  const char *del = "|")
-{
-    InputChannelTraits::Collection inputChannelMaskCollection;
-    InputChannelConverter::collectionFromString(inChannels, inputChannelMaskCollection, del);
-    ChannelIndexConverter::collectionFromString(inChannels, inputChannelMaskCollection, del);
-    return inputChannelMaskCollection;
-}
-
-inline
-static OutputChannelTraits::Collection outputChannelMasksFromString(const std::string &outChannels,
-                                                                    const char *del = "|")
-{
-    OutputChannelTraits::Collection outputChannelMaskCollection;
-    OutputChannelConverter::collectionFromString(outChannels, outputChannelMaskCollection, del);
-    ChannelIndexConverter::collectionFromString(outChannels, outputChannelMaskCollection, del);
-    return outputChannelMaskCollection;
-}
+typedef TypeConverter<MixTypeTraits> MixTypeConverter;
+typedef TypeConverter<RouteFlagTraits> RouteFlagTypeConverter;
+typedef TypeConverter<RuleTraits> RuleTypeConverter;
 
 }; // namespace android
-
diff --git a/services/audiopolicy/common/managerdefinitions/include/VolumeCurve.h b/services/audiopolicy/common/managerdefinitions/include/VolumeCurve.h
index 10f0766..e7fcefc 100644
--- a/services/audiopolicy/common/managerdefinitions/include/VolumeCurve.h
+++ b/services/audiopolicy/common/managerdefinitions/include/VolumeCurve.h
@@ -18,7 +18,6 @@
 
 #include "IVolumeCurvesCollection.h"
 #include <policy.h>
-#include <hardware/audio.h>
 #include <utils/RefBase.h>
 #include <utils/String8.h>
 #include <utils/SortedVector.h>
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp
index c7d2ee4..2492ed6 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp
@@ -63,11 +63,9 @@
     return mId;
 }
 
-audio_source_t AudioInputDescriptor::inputSource() const
+audio_source_t AudioInputDescriptor::inputSource(bool activeOnly) const
 {
-    // TODO: return highest priority input source
-    return mSessions.size() > 0 ? mSessions.valueAt(0)->inputSource() :
-                       AUDIO_SOURCE_DEFAULT;
+    return getHighestPrioritySource(activeOnly);
 }
 
 void AudioInputDescriptor::toAudioPortConfig(struct audio_port_config *dstConfig,
@@ -132,6 +130,12 @@
     return mSessions.isSourceActive(source);
 }
 
+audio_source_t AudioInputDescriptor::getHighestPrioritySource(bool activeOnly) const
+{
+
+    return mSessions.getHighestPrioritySource(activeOnly);
+}
+
 bool AudioInputDescriptor::isSoundTrigger() const {
     // sound trigger and non sound trigger sessions are not mixed
     // on a given input
@@ -143,9 +147,22 @@
     return mSessions.valueFor(session);
 }
 
-AudioSessionCollection AudioInputDescriptor::getActiveAudioSessions() const
+AudioSessionCollection AudioInputDescriptor::getAudioSessions(bool activeOnly) const
 {
-    return mSessions.getActiveSessions();
+    if (activeOnly) {
+        return mSessions.getActiveSessions();
+    } else {
+        return mSessions;
+    }
+}
+
+size_t AudioInputDescriptor::getAudioSessionCount(bool activeOnly) const
+{
+    if (activeOnly) {
+        return mSessions.getActiveSessionCount();
+    } else {
+        return mSessions.size();
+    }
 }
 
 status_t AudioInputDescriptor::addAudioSession(audio_session_t session,
@@ -236,17 +253,19 @@
     return count;
 }
 
-audio_io_handle_t AudioInputCollection::getActiveInput(bool ignoreVirtualInputs)
+Vector<sp <AudioInputDescriptor> > AudioInputCollection::getActiveInputs(bool ignoreVirtualInputs)
 {
+    Vector<sp <AudioInputDescriptor> > activeInputs;
+
     for (size_t i = 0; i < size(); i++) {
         const sp<AudioInputDescriptor>  inputDescriptor = valueAt(i);
         if ((inputDescriptor->isActive())
                 && (!ignoreVirtualInputs ||
                     !is_virtual_input_device(inputDescriptor->mDevice))) {
-            return keyAt(i);
+            activeInputs.add(inputDescriptor);
         }
     }
-    return 0;
+    return activeInputs;
 }
 
 audio_devices_t AudioInputCollection::getSupportedDevices(audio_io_handle_t handle) const
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
index 79bbc54..8593444 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
@@ -75,13 +75,13 @@
 }
 
 bool AudioOutputDescriptor::sharesHwModuleWith(
-        const sp<AudioOutputDescriptor> outputDesc)
+        const sp<AudioOutputDescriptor>& outputDesc)
 {
     if (outputDesc->isDuplicated()) {
         return sharesHwModuleWith(outputDesc->subOutput1()) ||
                     sharesHwModuleWith(outputDesc->subOutput2());
     } else {
-        return (getModuleHandle() == outputDesc->getModuleHandle());
+        return hasSameHwModuleAs(outputDesc);
     }
 }
 
@@ -223,7 +223,8 @@
     : AudioOutputDescriptor(profile, clientInterface),
     mProfile(profile), mIoHandle(0), mLatency(0),
     mFlags((audio_output_flags_t)0), mPolicyMix(NULL),
-    mOutput1(0), mOutput2(0), mDirectOpenCount(0), mGlobalRefCount(0)
+    mOutput1(0), mOutput2(0), mDirectOpenCount(0),
+    mDirectClientSession(AUDIO_SESSION_NONE), mGlobalRefCount(0)
 {
     if (profile != NULL) {
         mFlags = (audio_output_flags_t)profile->getFlags();
@@ -264,7 +265,7 @@
 }
 
 bool SwAudioOutputDescriptor::sharesHwModuleWith(
-        const sp<AudioOutputDescriptor> outputDesc)
+        const sp<AudioOutputDescriptor>& outputDesc)
 {
     if (isDuplicated()) {
         return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc);
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPatch.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPatch.cpp
index f382dec..32606ea 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioPatch.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPatch.cpp
@@ -20,7 +20,9 @@
 #include "AudioPatch.h"
 #include "AudioGain.h"
 #include "TypeConverter.h"
-#include <cutils/log.h>
+
+#include <log/log.h>
+#include <cutils/atomic.h>
 #include <utils/String8.h>
 
 namespace android {
@@ -54,7 +56,7 @@
     for (size_t i = 0; i < mPatch.num_sources; i++) {
         if (mPatch.sources[i].type == AUDIO_PORT_TYPE_DEVICE) {
             std::string device;
-            DeviceConverter::toString(mPatch.sources[i].ext.device.type, device);
+            deviceToString(mPatch.sources[i].ext.device.type, device);
             snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "",
                      mPatch.sources[i].id,
                      device.c_str());
@@ -69,7 +71,7 @@
     for (size_t i = 0; i < mPatch.num_sinks; i++) {
         if (mPatch.sinks[i].type == AUDIO_PORT_TYPE_DEVICE) {
             std::string device;
-            DeviceConverter::toString(mPatch.sinks[i].ext.device.type, device);
+            deviceToString(mPatch.sinks[i].ext.device.type, device);
             snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "",
                      mPatch.sinks[i].id,
                      device.c_str());
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
index 7ee98b6..08930f1 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
@@ -18,6 +18,7 @@
 //#define LOG_NDEBUG 0
 
 #include "AudioPolicyMix.h"
+#include "TypeConverter.h"
 #include "HwModule.h"
 #include "AudioPort.h"
 #include "IOProfile.h"
@@ -51,7 +52,67 @@
     return &mMix;
 }
 
-status_t AudioPolicyMixCollection::registerMix(String8 address, AudioMix mix,
+status_t AudioPolicyMix::dump(int fd, int spaces, int index) const
+{
+    const size_t SIZE = 256;
+    char buffer[SIZE];
+    String8 result;
+
+    snprintf(buffer, SIZE, "%*sAudio Policy Mix %d:\n", spaces, "", index+1);
+    result.append(buffer);
+    std::string mixTypeLiteral;
+    if (!MixTypeConverter::toString(mMix.mMixType, mixTypeLiteral)) {
+        ALOGE("%s: failed to convert mix type %d", __FUNCTION__, mMix.mMixType);
+        return BAD_VALUE;
+    }
+    snprintf(buffer, SIZE, "%*s- mix type: %s\n", spaces, "", mixTypeLiteral.c_str());
+    result.append(buffer);
+    std::string routeFlagLiteral;
+    RouteFlagTypeConverter::maskToString(mMix.mRouteFlags, routeFlagLiteral);
+    snprintf(buffer, SIZE, "%*s- Route Flags: %s\n", spaces, "", routeFlagLiteral.c_str());
+    result.append(buffer);
+    std::string deviceLiteral;
+    deviceToString(mMix.mDeviceType, deviceLiteral);
+    snprintf(buffer, SIZE, "%*s- device type: %s\n", spaces, "", deviceLiteral.c_str());
+    result.append(buffer);
+    snprintf(buffer, SIZE, "%*s- device address: %s\n", spaces, "", mMix.mDeviceAddress.string());
+    result.append(buffer);
+
+    int indexCriterion = 0;
+    for (const auto &criterion : mMix.mCriteria) {
+        snprintf(buffer, SIZE, "%*s- Criterion %d:\n", spaces + 2, "", indexCriterion++);
+        result.append(buffer);
+        std::string usageLiteral;
+        if (!UsageTypeConverter::toString(criterion.mValue.mUsage, usageLiteral)) {
+            ALOGE("%s: failed to convert usage %d", __FUNCTION__, criterion.mValue.mUsage);
+            return BAD_VALUE;
+        }
+        snprintf(buffer, SIZE, "%*s- Usage:%s\n", spaces + 4, "", usageLiteral.c_str());
+        result.append(buffer);
+        if (mMix.mMixType == MIX_TYPE_RECORDERS) {
+            std::string sourceLiteral;
+            if (!SourceTypeConverter::toString(criterion.mValue.mSource, sourceLiteral)) {
+                ALOGE("%s: failed to convert source %d", __FUNCTION__, criterion.mValue.mSource);
+                return BAD_VALUE;
+            }
+            snprintf(buffer, SIZE, "%*s- Source:%s\n", spaces + 4, "", sourceLiteral.c_str());
+            result.append(buffer);
+        }
+        snprintf(buffer, SIZE, "%*s- Uid:%d\n", spaces + 4, "", criterion.mValue.mUid);
+        result.append(buffer);
+        std::string ruleLiteral;
+        if (!RuleTypeConverter::toString(criterion.mRule, ruleLiteral)) {
+            ALOGE("%s: failed to convert source %d", __FUNCTION__,criterion.mRule);
+            return BAD_VALUE;
+        }
+        snprintf(buffer, SIZE, "%*s- Rule:%s\n", spaces + 4, "", ruleLiteral.c_str());
+        result.append(buffer);
+    }
+    write(fd, result.string(), result.size());
+    return NO_ERROR;
+}
+
+status_t AudioPolicyMixCollection::registerMix(const String8& address, AudioMix mix,
                                                sp<SwAudioOutputDescriptor> desc)
 {
     ssize_t index = indexOfKey(address);
@@ -70,7 +131,7 @@
     return NO_ERROR;
 }
 
-status_t AudioPolicyMixCollection::unregisterMix(String8 address)
+status_t AudioPolicyMixCollection::unregisterMix(const String8& address)
 {
     ssize_t index = indexOfKey(address);
     if (index < 0) {
@@ -82,7 +143,7 @@
     return NO_ERROR;
 }
 
-status_t AudioPolicyMixCollection::getAudioPolicyMix(String8 address,
+status_t AudioPolicyMixCollection::getAudioPolicyMix(const String8& address,
                                                      sp<AudioPolicyMix> &policyMix) const
 {
     ssize_t index = indexOfKey(address);
@@ -288,4 +349,14 @@
     return NO_ERROR;
 }
 
+status_t AudioPolicyMixCollection::dump(int fd) const
+{
+    std::string log("\nAudio Policy Mix:\n");
+    write(fd, log.c_str(), log.size());
+    for (size_t i = 0; i < size(); i++) {
+        valueAt(i)->dump(fd, 2, i);
+    }
+    return NO_ERROR;
+}
+
 }; //namespace android
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
index 17ed537..6ed2cb7 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
@@ -21,6 +21,7 @@
 #include "HwModule.h"
 #include "AudioGain.h"
 #include <policy.h>
+#include <cutils/atomic.h>
 
 #ifndef ARRAY_SIZE
 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
@@ -50,12 +51,12 @@
     return mModule->mHandle;
 }
 
-uint32_t AudioPort::getModuleVersion() const
+uint32_t AudioPort::getModuleVersionMajor() const
 {
     if (mModule == 0) {
         return 0;
     }
-    return mModule->getHalVersion();
+    return mModule->getHalVersionMajor();
 }
 
 const char *AudioPort::getModuleName() const
@@ -127,7 +128,7 @@
     port->num_gains = i;
 }
 
-void AudioPort::importAudioPort(const sp<AudioPort> port)
+void AudioPort::importAudioPort(const sp<AudioPort>& port)
 {
     size_t indexToImport;
     for (indexToImport = 0; indexToImport < port->mProfiles.size(); indexToImport++) {
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioSession.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioSession.cpp
index da983c5..bea9f4f 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioSession.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioSession.cpp
@@ -18,10 +18,12 @@
 //#define LOG_NDEBUG 0
 
 #include <AudioPolicyInterface.h>
+#include "policy.h"
 #include "AudioSession.h"
 #include "AudioGain.h"
 #include "TypeConverter.h"
-#include <cutils/log.h>
+
+#include <log/log.h>
 #include <utils/String8.h>
 
 namespace android {
@@ -89,8 +91,10 @@
                 AUDIO_CONFIG_BASE_INITIALIZER;
         const audio_patch_handle_t patchHandle = (provider != NULL) ? provider->getPatchHandle() :
                 AUDIO_PATCH_HANDLE_NONE;
-        mClientInterface->onRecordingConfigurationUpdate(event, mSession, mInputSource,
-                &mConfig, &deviceConfig, patchHandle);
+        if (patchHandle != AUDIO_PATCH_HANDLE_NONE) {
+            mClientInterface->onRecordingConfigurationUpdate(event, mSession, mInputSource,
+                    &mConfig, &deviceConfig, patchHandle);
+        }
     }
 
     return mActiveCount;
@@ -124,9 +128,11 @@
                 AUDIO_CONFIG_BASE_INITIALIZER;
         const audio_patch_handle_t patchHandle = (provider != NULL) ? provider->getPatchHandle() :
                 AUDIO_PATCH_HANDLE_NONE;
-        mClientInterface->onRecordingConfigurationUpdate(RECORD_CONFIG_EVENT_START,
-                mSession, mInputSource,
-                &mConfig, &deviceConfig, patchHandle);
+        if (patchHandle != AUDIO_PATCH_HANDLE_NONE) {
+            mClientInterface->onRecordingConfigurationUpdate(RECORD_CONFIG_EVENT_START,
+                    mSession, mInputSource,
+                    &mConfig, &deviceConfig, patchHandle);
+        }
     }
 }
 
@@ -214,9 +220,20 @@
     return activeSessions;
 }
 
+size_t AudioSessionCollection::getActiveSessionCount() const
+{
+    size_t activeCount = 0;
+    for (size_t i = 0; i < size(); i++) {
+        if (valueAt(i)->activeCount() != 0) {
+            activeCount++;
+        }
+    }
+    return activeCount;
+}
+
 bool AudioSessionCollection::hasActiveSession() const
 {
-    return getActiveSessions().size() != 0;
+    return getActiveSessionCount() != 0;
 }
 
 bool AudioSessionCollection::isSourceActive(audio_source_t source) const
@@ -236,6 +253,25 @@
     return false;
 }
 
+audio_source_t AudioSessionCollection::getHighestPrioritySource(bool activeOnly) const
+{
+    audio_source_t source = AUDIO_SOURCE_DEFAULT;
+    int32_t priority = -1;
+
+    for (size_t i = 0; i < size(); i++) {
+        const sp<AudioSession>  audioSession = valueAt(i);
+        if (activeOnly && audioSession->activeCount() == 0) {
+            continue;
+        }
+        int32_t curPriority = source_priority(audioSession->inputSource());
+        if (curPriority > priority) {
+            priority = curPriority;
+            source = audioSession->inputSource();
+        }
+    }
+    return source;
+}
+
 void AudioSessionCollection::onSessionInfoUpdate() const
 {
     for (size_t i = 0; i < size(); i++) {
@@ -243,7 +279,6 @@
     }
 }
 
-
 status_t AudioSessionCollection::dump(int fd, int spaces) const
 {
     const size_t SIZE = 256;
diff --git a/services/audiopolicy/common/managerdefinitions/src/ConfigParsingUtils.cpp b/services/audiopolicy/common/managerdefinitions/src/ConfigParsingUtils.cpp
index a3536e5..e5888e2 100644
--- a/services/audiopolicy/common/managerdefinitions/src/ConfigParsingUtils.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/ConfigParsingUtils.cpp
@@ -18,11 +18,11 @@
 //#define LOG_NDEBUG 0
 
 #include "ConfigParsingUtils.h"
-#include <convert/convert.h>
 #include "AudioGain.h"
 #include "IOProfile.h"
-#include "TypeConverter.h"
-#include <hardware/audio.h>
+#include <system/audio.h>
+#include <media/AudioParameter.h>
+#include <media/TypeConverter.h>
 #include <utils/Log.h>
 #include <cutils/misc.h>
 
@@ -105,7 +105,7 @@
     audio_devices_t type = AUDIO_DEVICE_NONE;
     while (node) {
         if (strcmp(node->name, APM_DEVICE_TYPE) == 0) {
-            DeviceConverter::fromString(node->value, type);
+            deviceFromString(node->value, type);
             break;
         }
         node = node->next;
@@ -289,11 +289,11 @@
                                             const DeviceVector &declaredDevices)
 {
     char *tagLiteral = strndup(tag, strlen(tag));
-    char *devTag = strtok(tagLiteral, "|");
+    char *devTag = strtok(tagLiteral, AudioParameter::valueListSeparator);
     while (devTag != NULL) {
         if (strlen(devTag) != 0) {
             audio_devices_t type;
-            if (DeviceConverter::fromString(devTag, type)) {
+            if (deviceFromString(devTag, type)) {
                 uint32_t inBit = type & AUDIO_DEVICE_BIT_IN;
                 type &= ~AUDIO_DEVICE_BIT_IN;
                 while (type) {
@@ -311,7 +311,7 @@
                 }
             }
         }
-        devTag = strtok(NULL, "|");
+        devTag = strtok(NULL, AudioParameter::valueListSeparator);
     }
     free(tagLiteral);
 }
@@ -340,7 +340,7 @@
             config.addAvailableOutputDevices(availableOutputDevices);
         } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) {
             audio_devices_t device = AUDIO_DEVICE_NONE;
-            DeviceConverter::fromString(node->value, device);
+            deviceFromString(node->value, device);
             if (device != AUDIO_DEVICE_NONE) {
                 sp<DeviceDescriptor> defaultOutputDevice = new DeviceDescriptor(device);
                 config.setDefaultOutputDevice(defaultOutputDevice);
@@ -356,9 +356,8 @@
         } else if (strcmp(AUDIO_HAL_VERSION_TAG, node->name) == 0) {
             uint32_t major, minor;
             sscanf((char *)node->value, "%u.%u", &major, &minor);
-            module->setHalVersion(HARDWARE_DEVICE_API_VERSION(major, minor));
-            ALOGV("loadGlobalConfig() mHalVersion = %04x major %u minor %u",
-                  module->getHalVersion(), major, minor);
+            module->setHalVersion(major, minor);
+            ALOGV("loadGlobalConfig() mHalVersion = major %u minor %u", major, minor);
         }
         node = node->next;
     }
diff --git a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
index 50453ad..f0e48b6 100644
--- a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
@@ -128,7 +128,7 @@
     return devices;
 }
 
-sp<DeviceDescriptor> DeviceVector::getDevice(audio_devices_t type, String8 address) const
+sp<DeviceDescriptor> DeviceVector::getDevice(audio_devices_t type, const String8& address) const
 {
     sp<DeviceDescriptor> device;
     for (size_t i = 0; i < size(); i++) {
@@ -177,7 +177,7 @@
 }
 
 DeviceVector DeviceVector::getDevicesFromTypeAddr(
-        audio_devices_t type, String8 address) const
+        audio_devices_t type, const String8& address) const
 {
     DeviceVector devices;
     for (size_t i = 0; i < size(); i++) {
@@ -263,7 +263,7 @@
     strncpy(port->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN);
 }
 
-void DeviceDescriptor::importAudioPort(const sp<AudioPort> port) {
+void DeviceDescriptor::importAudioPort(const sp<AudioPort>& port) {
     AudioPort::importAudioPort(port);
     port->pickAudioProfile(mSamplingRate, mChannelMask, mFormat);
 }
@@ -285,7 +285,7 @@
         result.append(buffer);
     }
     std::string deviceLiteral;
-    if (DeviceConverter::toString(mDeviceType, deviceLiteral)) {
+    if (deviceToString(mDeviceType, deviceLiteral)) {
         snprintf(buffer, SIZE, "%*s- type: %-48s\n", spaces, "", deviceLiteral.c_str());
         result.append(buffer);
     }
@@ -302,7 +302,7 @@
 void DeviceDescriptor::log() const
 {
     std::string device;
-    DeviceConverter::toString(mDeviceType, device);
+    deviceToString(mDeviceType, device);
     ALOGI("Device id:%d type:0x%X:%s, addr:%s", mId,  mDeviceType, device.c_str(),
           mAddress.string());
 
diff --git a/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp b/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp
index a85c07f..cc56fb8 100644
--- a/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp
@@ -20,16 +20,16 @@
 #include "HwModule.h"
 #include "IOProfile.h"
 #include "AudioGain.h"
-#include <hardware/audio.h>
 #include <policy.h>
+#include <system/audio.h>
 
 namespace android {
 
-HwModule::HwModule(const char *name, uint32_t halVersion)
+HwModule::HwModule(const char *name, uint32_t halVersionMajor, uint32_t halVersionMinor)
     : mName(String8(name)),
-      mHandle(AUDIO_MODULE_HANDLE_NONE),
-      mHalVersion(halVersion)
+      mHandle(AUDIO_MODULE_HANDLE_NONE)
 {
+    setHalVersion(halVersionMajor, halVersionMinor);
 }
 
 HwModule::~HwModule()
@@ -42,8 +42,8 @@
     }
 }
 
-status_t HwModule::addOutputProfile(String8 name, const audio_config_t *config,
-                                    audio_devices_t device, String8 address)
+status_t HwModule::addOutputProfile(const String8& name, const audio_config_t *config,
+                                    audio_devices_t device, const String8& address)
 {
     sp<IOProfile> profile = new OutputProfile(name);
 
@@ -93,7 +93,7 @@
     }
 }
 
-status_t HwModule::removeOutputProfile(String8 name)
+status_t HwModule::removeOutputProfile(const String8& name)
 {
     for (size_t i = 0; i < mOutputProfiles.size(); i++) {
         if (mOutputProfiles[i]->getName() == name) {
@@ -105,8 +105,8 @@
     return NO_ERROR;
 }
 
-status_t HwModule::addInputProfile(String8 name, const audio_config_t *config,
-                                   audio_devices_t device, String8 address)
+status_t HwModule::addInputProfile(const String8& name, const audio_config_t *config,
+                                   audio_devices_t device, const String8& address)
 {
     sp<IOProfile> profile = new InputProfile(name);
     profile->addAudioProfile(new AudioProfile(config->format, config->channel_mask,
@@ -122,7 +122,7 @@
     return addInputProfile(profile);
 }
 
-status_t HwModule::removeInputProfile(String8 name)
+status_t HwModule::removeInputProfile(const String8& name)
 {
     for (size_t i = 0; i < mInputProfiles.size(); i++) {
         if (mInputProfiles[i]->getName() == name) {
@@ -227,7 +227,7 @@
     result.append(buffer);
     snprintf(buffer, SIZE, "  - handle: %d\n", mHandle);
     result.append(buffer);
-    snprintf(buffer, SIZE, "  - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF);
+    snprintf(buffer, SIZE, "  - version: %u.%u\n", getHalVersionMajor(), getHalVersionMinor());
     result.append(buffer);
     write(fd, result.string(), result.size());
     if (mOutputProfiles.size()) {
diff --git a/services/audiopolicy/common/managerdefinitions/src/IOProfile.cpp b/services/audiopolicy/common/managerdefinitions/src/IOProfile.cpp
index abf2dd4..74ef4ec 100644
--- a/services/audiopolicy/common/managerdefinitions/src/IOProfile.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/IOProfile.cpp
@@ -28,7 +28,7 @@
 // Sampling rate, format and channel mask must be specified in order to
 // get a valid a match
 bool IOProfile::isCompatibleProfile(audio_devices_t device,
-                                    String8 address,
+                                    const String8& address,
                                     uint32_t samplingRate,
                                     uint32_t *updatedSamplingRate,
                                     audio_format_t format,
@@ -108,8 +108,18 @@
 
     AudioPort::dump(fd, 4);
 
-    snprintf(buffer, SIZE, "    - flags: 0x%04x\n", getFlags());
+    snprintf(buffer, SIZE, "    - flags: 0x%04x", getFlags());
     result.append(buffer);
+    std::string flagsLiteral;
+    if (getRole() == AUDIO_PORT_ROLE_SINK) {
+        InputFlagConverter::maskToString(getFlags(), flagsLiteral);
+    } else if (getRole() == AUDIO_PORT_ROLE_SOURCE) {
+        OutputFlagConverter::maskToString(getFlags(), flagsLiteral);
+    }
+    if (!flagsLiteral.empty()) {
+        result.appendFormat(" (%s)", flagsLiteral.c_str());
+    }
+    result.append("\n");
     write(fd, result.string(), result.size());
     mSupportedDevices.dump(fd, String8("Supported"), 4, false);
 }
diff --git a/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp b/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp
index 3e5bb7d..a224004 100644
--- a/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp
@@ -18,7 +18,7 @@
 //#define LOG_NDEBUG 0
 
 #include "Serializer.h"
-#include <convert/convert.h>
+#include <media/convert.h>
 #include "TypeConverter.h"
 #include <libxml/parser.h>
 #include <libxml/xinclude.h>
@@ -199,7 +199,8 @@
     string format = getXmlAttribute(root, Attributes::format);
     string channels = getXmlAttribute(root, Attributes::channelMasks);
 
-    profile = new Element(formatFromString(format), channelMasksFromString(channels, ","),
+    profile = new Element(formatFromString(format, gDynamicFormat),
+                          channelMasksFromString(channels, ","),
                           samplingRatesFromString(samplingRates, ","));
 
     profile->setDynamicFormat(profile->getFormat() == gDynamicFormat);
@@ -300,7 +301,7 @@
                 AUDIO_PORT_ROLE_SOURCE : AUDIO_PORT_ROLE_SINK;
 
     audio_devices_t type = AUDIO_DEVICE_NONE;
-    if (!DeviceConverter::fromString(typeName, type) ||
+    if (!deviceFromString(typeName, type) ||
             (!audio_is_input_device(type) && portRole == AUDIO_PORT_ROLE_SOURCE) ||
             (!audio_is_output_devices(type) && portRole == AUDIO_PORT_ROLE_SINK)) {
         ALOGW("%s: bad type %08x", __FUNCTION__, type);
@@ -383,6 +384,7 @@
             sp<AudioPort> source = ctx->findPortByTagName(String8(devTag));
             if (source == NULL) {
                 ALOGE("%s: no source found with name=%s", __FUNCTION__, devTag);
+                free(sourcesLiteral);
                 return BAD_VALUE;
             }
             sources.add(source);
@@ -418,19 +420,17 @@
         ALOGE("%s: No %s found", __FUNCTION__, Attributes::name);
         return BAD_VALUE;
     }
-    uint32_t version = AUDIO_DEVICE_API_VERSION_MIN;
+    uint32_t versionMajor = 0, versionMinor = 0;
     string versionLiteral = getXmlAttribute(root, Attributes::version);
     if (!versionLiteral.empty()) {
-        uint32_t major, minor;
-        sscanf(versionLiteral.c_str(), "%u.%u", &major, &minor);
-        version = HARDWARE_DEVICE_API_VERSION(major, minor);
-        ALOGV("%s: mHalVersion = %04x major %u minor %u",  __FUNCTION__,
-              version, major, minor);
+        sscanf(versionLiteral.c_str(), "%u.%u", &versionMajor, &versionMinor);
+        ALOGV("%s: mHalVersion = major %u minor %u",  __FUNCTION__,
+              versionMajor, versionMajor);
     }
 
     ALOGV("%s: %s %s=%s", __FUNCTION__, tag, Attributes::name, name.c_str());
 
-    module = new Element(name.c_str(), version);
+    module = new Element(name.c_str(), versionMajor, versionMinor);
 
     // Deserialize childrens: Audio Mix Port, Audio Device Ports (Source/Sink), Audio Routes
     MixPortTraits::Collection mixPorts;
diff --git a/services/audiopolicy/common/managerdefinitions/src/SessionRoute.cpp b/services/audiopolicy/common/managerdefinitions/src/SessionRoute.cpp
index 7ecfa44..689f4e6 100644
--- a/services/audiopolicy/common/managerdefinitions/src/SessionRoute.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/SessionRoute.cpp
@@ -90,7 +90,7 @@
 void SessionRouteMap::addRoute(audio_session_t session,
                                audio_stream_type_t streamType,
                                audio_source_t source,
-                               sp<DeviceDescriptor> descriptor,
+                               const sp<DeviceDescriptor>& descriptor,
                                uid_t uid)
 {
     if (mMapType == MAPTYPE_INPUT && streamType != SessionRoute::STREAM_TYPE_NA) {
diff --git a/services/audiopolicy/common/managerdefinitions/src/SoundTriggerSession.cpp b/services/audiopolicy/common/managerdefinitions/src/SoundTriggerSession.cpp
index 8ca3ae0..0383b0e 100644
--- a/services/audiopolicy/common/managerdefinitions/src/SoundTriggerSession.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/SoundTriggerSession.cpp
@@ -34,7 +34,7 @@
 {
     ssize_t index = indexOfKey(session);
     if (index < 0) {
-        ALOGW("acquireSoundTriggerSession() session %d not registered", session);
+        ALOGW("releaseSession() session %d not registered", session);
         return BAD_VALUE;
     }
 
diff --git a/services/audiopolicy/common/managerdefinitions/src/TypeConverter.cpp b/services/audiopolicy/common/managerdefinitions/src/TypeConverter.cpp
index 48bfd79..0362037 100644
--- a/services/audiopolicy/common/managerdefinitions/src/TypeConverter.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/TypeConverter.cpp
@@ -14,290 +14,55 @@
  * limitations under the License.
  */
 
+#include <media/AudioPolicy.h>
+
 #include "TypeConverter.h"
 
 namespace android {
 
 #define MAKE_STRING_FROM_ENUM(string) { #string, string }
-
-template <>
-const DeviceConverter::Table DeviceConverter::mTable[] = {
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_EARPIECE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPEAKER),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPEAKER_SAFE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_SCO),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_HDMI),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_USB),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_LINE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPDIF),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_FM),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_AUX_LINE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_IP),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BUS),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_STUB),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_AMBIENT),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_ALL_SCO),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_HDMI),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_VOICE_CALL),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BACK_MIC),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_USB_DEVICE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_FM_TUNER),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_TV_TUNER),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_LINE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_SPDIF),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_LOOPBACK),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_IP),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BUS),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_STUB),
-};
-
-template<>
-const size_t DeviceConverter::mSize = sizeof(DeviceConverter::mTable) /
-        sizeof(DeviceConverter::mTable[0]);
-
-
-template <>
-const OutputFlagConverter::Table OutputFlagConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_DIRECT),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_FAST),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_HW_AV_SYNC),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_TTS),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_RAW),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_SYNC),
-};
-template<>
-const size_t OutputFlagConverter::mSize = sizeof(OutputFlagConverter::mTable) /
-        sizeof(OutputFlagConverter::mTable[0]);
-
-
-template <>
-const InputFlagConverter::Table InputFlagConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_FAST),
-    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_HW_HOTWORD),
-    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_RAW),
-    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_SYNC),
-};
-template<>
-const size_t InputFlagConverter::mSize = sizeof(InputFlagConverter::mTable) /
-        sizeof(InputFlagConverter::mTable[0]);
-
-
-template <>
-const FormatConverter::Table FormatConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_16_BIT),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_8_BIT),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_32_BIT),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_8_24_BIT),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_FLOAT),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_MP3),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_MAIN),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LC),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_SSR),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LTP),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_HE_V1),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_SCALABLE),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ERLC),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LD),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_HE_V2),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ELD),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_VORBIS),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_HE_AAC_V1),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_HE_AAC_V2),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_OPUS),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AC3),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_E_AC3),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DTS),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DTS_HD),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_IEC61937),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DOLBY_TRUEHD),
-};
-template<>
-const size_t FormatConverter::mSize = sizeof(FormatConverter::mTable) /
-        sizeof(FormatConverter::mTable[0]);
-
-
-template <>
-const OutputChannelConverter::Table OutputChannelConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_MONO),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_STEREO),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_QUAD),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_5POINT1),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_7POINT1),
-};
-template<>
-const size_t OutputChannelConverter::mSize = sizeof(OutputChannelConverter::mTable) /
-        sizeof(OutputChannelConverter::mTable[0]);
-
-
-template <>
-const InputChannelConverter::Table InputChannelConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_MONO),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_STEREO),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK),
-};
-template<>
-const size_t InputChannelConverter::mSize = sizeof(InputChannelConverter::mTable) /
-        sizeof(InputChannelConverter::mTable[0]);
-
-template <>
-const ChannelIndexConverter::Table ChannelIndexConverter::mTable[] = {
-    {"AUDIO_CHANNEL_INDEX_MASK_1", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_1)},
-    {"AUDIO_CHANNEL_INDEX_MASK_2", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_2)},
-    {"AUDIO_CHANNEL_INDEX_MASK_3", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_3)},
-    {"AUDIO_CHANNEL_INDEX_MASK_4", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_4)},
-    {"AUDIO_CHANNEL_INDEX_MASK_5", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_5)},
-    {"AUDIO_CHANNEL_INDEX_MASK_6", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_6)},
-    {"AUDIO_CHANNEL_INDEX_MASK_7", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_7)},
-    {"AUDIO_CHANNEL_INDEX_MASK_8", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_8)},
-};
-template<>
-const size_t ChannelIndexConverter::mSize = sizeof(ChannelIndexConverter::mTable) /
-        sizeof(ChannelIndexConverter::mTable[0]);
-
-
-template <>
-const GainModeConverter::Table GainModeConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_JOINT),
-    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_CHANNELS),
-    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_RAMP),
-};
-
-template<>
-const size_t GainModeConverter::mSize = sizeof(GainModeConverter::mTable) /
-        sizeof(GainModeConverter::mTable[0]);
+#define TERMINATOR { .literal = nullptr }
 
 template <>
 const DeviceCategoryConverter::Table DeviceCategoryConverter::mTable[] = {
     MAKE_STRING_FROM_ENUM(DEVICE_CATEGORY_HEADSET),
     MAKE_STRING_FROM_ENUM(DEVICE_CATEGORY_SPEAKER),
     MAKE_STRING_FROM_ENUM(DEVICE_CATEGORY_EARPIECE),
-    MAKE_STRING_FROM_ENUM(DEVICE_CATEGORY_EXT_MEDIA)
+    MAKE_STRING_FROM_ENUM(DEVICE_CATEGORY_EXT_MEDIA),
+    TERMINATOR
 };
 
-template<>
-const size_t DeviceCategoryConverter::mSize = sizeof(DeviceCategoryConverter::mTable) /
-        sizeof(DeviceCategoryConverter::mTable[0]);
-
 template <>
-const StreamTypeConverter::Table StreamTypeConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_VOICE_CALL),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_SYSTEM),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_RING),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_MUSIC),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ALARM),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_NOTIFICATION),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_BLUETOOTH_SCO ),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ENFORCED_AUDIBLE),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_DTMF),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_TTS),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ACCESSIBILITY),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_REROUTING),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_PATCH),
+const MixTypeConverter::Table MixTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(MIX_TYPE_INVALID),
+    MAKE_STRING_FROM_ENUM(MIX_TYPE_PLAYERS),
+    MAKE_STRING_FROM_ENUM(MIX_TYPE_RECORDERS),
+    TERMINATOR
 };
 
-template<>
-const size_t StreamTypeConverter::mSize = sizeof(StreamTypeConverter::mTable) /
-        sizeof(StreamTypeConverter::mTable[0]);
+template <>
+const RouteFlagTypeConverter::Table RouteFlagTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(MIX_ROUTE_FLAG_RENDER),
+    MAKE_STRING_FROM_ENUM(MIX_ROUTE_FLAG_LOOP_BACK),
+    MAKE_STRING_FROM_ENUM(MIX_ROUTE_FLAG_ALL),
+    TERMINATOR
+};
 
-template <class Traits>
-bool TypeConverter<Traits>::toString(const typename Traits::Type &value, std::string &str)
-{
-    for (size_t i = 0; i < mSize; i++) {
-        if (mTable[i].value == value) {
-            str = mTable[i].literal;
-            return true;
-        }
-    }
-    return false;
-}
+template <>
+const RuleTypeConverter::Table RuleTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(RULE_EXCLUSION_MASK),
+    MAKE_STRING_FROM_ENUM(RULE_MATCH_ATTRIBUTE_USAGE),
+    MAKE_STRING_FROM_ENUM(RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET),
+    MAKE_STRING_FROM_ENUM(RULE_MATCH_UID),
+    MAKE_STRING_FROM_ENUM(RULE_EXCLUDE_ATTRIBUTE_USAGE),
+    MAKE_STRING_FROM_ENUM(RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET),
+    MAKE_STRING_FROM_ENUM(RULE_EXCLUDE_UID),
+    TERMINATOR
+};
 
-template <class Traits>
-bool TypeConverter<Traits>::fromString(const std::string &str, typename Traits::Type &result)
-{
-    for (size_t i = 0; i < mSize; i++) {
-        if (strcmp(mTable[i].literal, str.c_str()) == 0) {
-            ALOGV("stringToEnum() found %s", mTable[i].literal);
-            result = mTable[i].value;
-            return true;
-        }
-    }
-    return false;
-}
-
-template <class Traits>
-void TypeConverter<Traits>::collectionFromString(const std::string &str,
-                                                 typename Traits::Collection &collection,
-                                                 const char *del)
-{
-    char *literal = strdup(str.c_str());
-
-    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
-        typename Traits::Type value;
-        if (fromString(cstr, value)) {
-            collection.add(value);
-        }
-    }
-    free(literal);
-}
-
-template <class Traits>
-uint32_t TypeConverter<Traits>::maskFromString(const std::string &str, const char *del)
-{
-    char *literal = strdup(str.c_str());
-    uint32_t value = 0;
-    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
-        typename Traits::Type type;
-        if (fromString(cstr, type)) {
-            value |= static_cast<uint32_t>(type);
-        }
-    }
-    free(literal);
-    return value;
-}
-
-template class TypeConverter<DeviceTraits>;
-template class TypeConverter<OutputFlagTraits>;
-template class TypeConverter<InputFlagTraits>;
-template class TypeConverter<FormatTraits>;
-template class TypeConverter<OutputChannelTraits>;
-template class TypeConverter<InputChannelTraits>;
-template class TypeConverter<ChannelIndexTraits>;
-template class TypeConverter<GainModeTraits>;
-template class TypeConverter<StreamTraits>;
 template class TypeConverter<DeviceCategoryTraits>;
+template class TypeConverter<MixTypeTraits>;
+template class TypeConverter<RouteFlagTraits>;
+template class TypeConverter<RuleTraits>;
 
 }; // namespace android
-
diff --git a/services/audiopolicy/config/a2dp_audio_policy_configuration.xml b/services/audiopolicy/config/a2dp_audio_policy_configuration.xml
index ced7463..7bcab5c 100644
--- a/services/audiopolicy/config/a2dp_audio_policy_configuration.xml
+++ b/services/audiopolicy/config/a2dp_audio_policy_configuration.xml
@@ -2,11 +2,7 @@
 <!-- A2dp Audio HAL Audio Policy Configuration file -->
 <module name="a2dp" halVersion="2.0">
     <mixPorts>
-        <mixPort name="a2dp output" role="source">
-            <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                     samplingRates="44100"
-                     channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
-        </mixPort>
+        <mixPort name="a2dp output" role="source"/>
         <mixPort name="a2dp input" role="sink">
             <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                      samplingRates="44100,48000"
diff --git a/services/audiopolicy/config/audio_policy_configuration_generic.xml b/services/audiopolicy/config/audio_policy_configuration_generic.xml
new file mode 100644
index 0000000..58768c3
--- /dev/null
+++ b/services/audiopolicy/config/audio_policy_configuration_generic.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<!-- Copyright (C) 2017 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<audioPolicyConfiguration version="1.0" xmlns:xi="http://www.w3.org/2001/XInclude">
+    <!-- version section contains a “version” tag in the form “major.minor” e.g version=”1.0” -->
+
+    <!-- Global configuration Decalaration -->
+    <globalConfiguration speaker_drc_enabled="false"/>
+
+    <modules>
+        <!-- Primary Audio HAL -->
+        <xi:include href="primary_audio_policy_configuration.xml"/>
+
+        <!-- Remote Submix Audio HAL -->
+        <xi:include href="r_submix_audio_policy_configuration.xml"/>
+
+    </modules>
+    <!-- End of Modules section -->
+
+    <!-- Volume section -->
+
+    <xi:include href="audio_policy_volumes.xml"/>
+    <xi:include href="default_volume_tables.xml"/>
+
+    <!-- End of Volume section -->
+
+</audioPolicyConfiguration>
diff --git a/services/audiopolicy/config/primary_audio_policy_configuration.xml b/services/audiopolicy/config/primary_audio_policy_configuration.xml
new file mode 100644
index 0000000..bf508ac
--- /dev/null
+++ b/services/audiopolicy/config/primary_audio_policy_configuration.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Default Primary Audio HAL Module Audio Policy Configuration include flie -->
+<module name="primary" halVersion="2.0">
+    <attachedDevices>
+        <item>Speaker</item>
+        <item>Built-In Mic</item>
+    </attachedDevices>
+    <defaultOutputDevice>Speaker</defaultOutputDevice>
+    <mixPorts>
+        <mixPort name="primary output" role="source" flags="AUDIO_OUTPUT_FLAG_PRIMARY">
+            <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                     samplingRates="44100" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+        </mixPort>
+        <mixPort name="primary input" role="sink">
+            <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                     samplingRates="8000, 16000" channelMasks="AUDIO_CHANNEL_IN_MONO"/>
+        </mixPort>
+   </mixPorts>
+   <devicePorts>
+        <devicePort tagName="Speaker" type="AUDIO_DEVICE_OUT_SPEAKER" role="sink">
+        </devicePort>
+
+        <devicePort tagName="Built-In Mic" type="AUDIO_DEVICE_IN_BUILTIN_MIC" role="source">
+        </devicePort>
+    </devicePorts>
+    <routes>
+        <route type="mix" sink="Speaker"
+               sources="primary output"/>
+        <route type="mix" sink="primary input"
+               sources="Built-In Mic"/>
+    </routes>
+</module>
diff --git a/services/audiopolicy/engine/interface/AudioPolicyManagerInterface.h b/services/audiopolicy/engine/interface/AudioPolicyManagerInterface.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engine/interface/AudioPolicyManagerObserver.h b/services/audiopolicy/engine/interface/AudioPolicyManagerObserver.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/Android.mk b/services/audiopolicy/engineconfigurable/Android.mk
old mode 100755
new mode 100644
index 6dba75b..5b43347
--- a/services/audiopolicy/engineconfigurable/Android.mk
+++ b/services/audiopolicy/engineconfigurable/Android.mk
@@ -39,17 +39,20 @@
 
 LOCAL_MODULE := libaudiopolicyengineconfigurable
 LOCAL_MODULE_TAGS := optional
+
 LOCAL_STATIC_LIBRARIES := \
-    libmedia_helper \
     libaudiopolicypfwwrapper \
-    libaudiopolicycomponents \
-    libxml2
+    libaudiopolicycomponents
 
 LOCAL_SHARED_LIBRARIES := \
+    liblog \
     libcutils \
     libutils \
+    liblog \
     libaudioutils \
-    libparameter
+    libparameter \
+    libmedia_helper \
+    libxml2
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/services/audiopolicy/engineconfigurable/include/AudioPolicyEngineInstance.h b/services/audiopolicy/engineconfigurable/include/AudioPolicyEngineInstance.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/include/EngineDefinition.h b/services/audiopolicy/engineconfigurable/include/EngineDefinition.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/interface/AudioPolicyPluginInterface.h b/services/audiopolicy/engineconfigurable/interface/AudioPolicyPluginInterface.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/ParameterFrameworkConfigurationPolicy.xml.in b/services/audiopolicy/engineconfigurable/parameter-framework/examples/ParameterFrameworkConfigurationPolicy.xml.in
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/PolicyConfigurableDomains.xml b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/PolicyConfigurableDomains.xml
index aa2af0f..b43f83b 100644
--- a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/PolicyConfigurableDomains.xml
+++ b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/PolicyConfigurableDomains.xml
@@ -3062,7 +3062,7 @@
         <CompoundRule Type="All">
           <SelectionCriterionRule SelectionCriterion="TelephonyMode" MatchesWhen="IsNot" Value="InCall"/>
           <SelectionCriterionRule SelectionCriterion="TelephonyMode" MatchesWhen="IsNot" Value="InCommunication"/>
-          <SelectionCriterionRule SelectionCriterion="ForceUseForMedia" MatchesWhen="Is" Value="ForceNoBtA2dp"/>
+          <SelectionCriterionRule SelectionCriterion="ForceUseForMedia" MatchesWhen="IsNot" Value="ForceNoBtA2dp"/>
           <SelectionCriterionRule SelectionCriterion="AvailableOutputDevices" MatchesWhen="Includes" Value="BluetoothA2dp"/>
         </CompoundRule>
       </Configuration>
@@ -3070,7 +3070,7 @@
         <CompoundRule Type="All">
           <SelectionCriterionRule SelectionCriterion="TelephonyMode" MatchesWhen="IsNot" Value="InCall"/>
           <SelectionCriterionRule SelectionCriterion="TelephonyMode" MatchesWhen="IsNot" Value="InCommunication"/>
-          <SelectionCriterionRule SelectionCriterion="ForceUseForMedia" MatchesWhen="Is" Value="ForceNoBtA2dp"/>
+          <SelectionCriterionRule SelectionCriterion="ForceUseForMedia" MatchesWhen="IsNot" Value="ForceNoBtA2dp"/>
           <SelectionCriterionRule SelectionCriterion="AvailableOutputDevices" MatchesWhen="Includes" Value="BluetoothA2dpHeadphones"/>
         </CompoundRule>
       </Configuration>
@@ -3078,7 +3078,7 @@
         <CompoundRule Type="All">
           <SelectionCriterionRule SelectionCriterion="TelephonyMode" MatchesWhen="IsNot" Value="InCall"/>
           <SelectionCriterionRule SelectionCriterion="TelephonyMode" MatchesWhen="IsNot" Value="InCommunication"/>
-          <SelectionCriterionRule SelectionCriterion="ForceUseForMedia" MatchesWhen="Is" Value="ForceNoBtA2dp"/>
+          <SelectionCriterionRule SelectionCriterion="ForceUseForMedia" MatchesWhen="IsNot" Value="ForceNoBtA2dp"/>
           <SelectionCriterionRule SelectionCriterion="AvailableOutputDevices" MatchesWhen="Includes" Value="BluetoothA2dpSpeaker"/>
         </CompoundRule>
       </Configuration>
@@ -6472,7 +6472,7 @@
               <SelectionCriterionRule SelectionCriterion="TelephonyMode" MatchesWhen="IsNot" Value="InCall"/>
               <SelectionCriterionRule SelectionCriterion="TelephonyMode" MatchesWhen="IsNot" Value="InCommunication"/>
               <SelectionCriterionRule SelectionCriterion="AvailableOutputDevices" MatchesWhen="Excludes" Value="UsbAccessory"/>
-              <SelectionCriterionRule SelectionCriterion="ForceUseForCommunication" MatchesWhen="Is" Value="ForceSpeaker"/>
+              <SelectionCriterionRule SelectionCriterion="ForceUseForMedia" MatchesWhen="IsNot" Value="ForceSpeaker"/>
             </CompoundRule>
           </CompoundRule>
           <SelectionCriterionRule SelectionCriterion="AvailableOutputDevices" MatchesWhen="Includes" Value="UsbDevice"/>
@@ -8416,6 +8416,7 @@
       <ConfigurableElement Path="/Policy/policy/usages/assistance_navigation_guidance/applicable_strategy/strategy"/>
       <ConfigurableElement Path="/Policy/policy/usages/assistance_sonification/applicable_strategy/strategy"/>
       <ConfigurableElement Path="/Policy/policy/usages/game/applicable_strategy/strategy"/>
+      <ConfigurableElement Path="/Policy/policy/usages/assistant/applicable_strategy/strategy"/>
     </ConfigurableElements>
     <Settings>
       <Configuration Name="Calibration">
@@ -8461,6 +8462,9 @@
         <ConfigurableElement Path="/Policy/policy/usages/game/applicable_strategy/strategy">
           <EnumParameter Name="strategy">media</EnumParameter>
         </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/usages/assistant/applicable_strategy/strategy">
+          <EnumParameter Name="strategy">media</EnumParameter>
+        </ConfigurableElement>
       </Configuration>
     </Settings>
   </ConfigurableDomain>
@@ -8738,6 +8742,7 @@
       <ConfigurableElement Path="/Policy/policy/input_sources/fm_tuner/applicable_input_device/mask/loopback"/>
       <ConfigurableElement Path="/Policy/policy/input_sources/fm_tuner/applicable_input_device/mask/ip"/>
       <ConfigurableElement Path="/Policy/policy/input_sources/fm_tuner/applicable_input_device/mask/bus"/>
+      <ConfigurableElement Path="/Policy/policy/input_sources/fm_tuner/applicable_input_device/mask/stub"/>
     </ConfigurableElements>
     <Settings>
       <Configuration Name="Calibration">
@@ -9428,6 +9433,9 @@
         <ConfigurableElement Path="/Policy/policy/input_sources/fm_tuner/applicable_input_device/mask/bus">
           <BitParameter Name="bus">0</BitParameter>
         </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/fm_tuner/applicable_input_device/mask/stub">
+          <BitParameter Name="stub">0</BitParameter>
+        </ConfigurableElement>
       </Configuration>
     </Settings>
   </ConfigurableDomain>
@@ -9758,7 +9766,7 @@
       </Configuration>
     </Settings>
   </ConfigurableDomain>
-  <ConfigurableDomain Name="DeviceForInputSource.VoiceRecognitionAndHotword" SequenceAware="false">
+  <ConfigurableDomain Name="DeviceForInputSource.VoiceRecognitionAndUnprocessedAndHotword" SequenceAware="false">
     <Configurations>
       <Configuration Name="ScoHeadset">
         <CompoundRule Type="All">
@@ -9790,6 +9798,10 @@
       <ConfigurableElement Path="/Policy/policy/input_sources/voice_recognition/applicable_input_device/mask/wired_headset"/>
       <ConfigurableElement Path="/Policy/policy/input_sources/voice_recognition/applicable_input_device/mask/usb_device"/>
       <ConfigurableElement Path="/Policy/policy/input_sources/voice_recognition/applicable_input_device/mask/builtin_mic"/>
+      <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/bluetooth_sco_headset"/>
+      <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/wired_headset"/>
+      <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/usb_device"/>
+      <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/builtin_mic"/>
       <ConfigurableElement Path="/Policy/policy/input_sources/hotword/applicable_input_device/mask/bluetooth_sco_headset"/>
       <ConfigurableElement Path="/Policy/policy/input_sources/hotword/applicable_input_device/mask/wired_headset"/>
       <ConfigurableElement Path="/Policy/policy/input_sources/hotword/applicable_input_device/mask/usb_device"/>
@@ -9809,6 +9821,18 @@
         <ConfigurableElement Path="/Policy/policy/input_sources/voice_recognition/applicable_input_device/mask/builtin_mic">
           <BitParameter Name="builtin_mic">0</BitParameter>
         </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/bluetooth_sco_headset">
+          <BitParameter Name="bluetooth_sco_headset">1</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/wired_headset">
+          <BitParameter Name="wired_headset">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/usb_device">
+          <BitParameter Name="usb_device">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/builtin_mic">
+          <BitParameter Name="builtin_mic">0</BitParameter>
+        </ConfigurableElement>
         <ConfigurableElement Path="/Policy/policy/input_sources/hotword/applicable_input_device/mask/bluetooth_sco_headset">
           <BitParameter Name="bluetooth_sco_headset">1</BitParameter>
         </ConfigurableElement>
@@ -9835,6 +9859,18 @@
         <ConfigurableElement Path="/Policy/policy/input_sources/voice_recognition/applicable_input_device/mask/builtin_mic">
           <BitParameter Name="builtin_mic">0</BitParameter>
         </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/bluetooth_sco_headset">
+          <BitParameter Name="bluetooth_sco_headset">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/wired_headset">
+          <BitParameter Name="wired_headset">1</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/usb_device">
+          <BitParameter Name="usb_device">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/builtin_mic">
+          <BitParameter Name="builtin_mic">0</BitParameter>
+        </ConfigurableElement>
         <ConfigurableElement Path="/Policy/policy/input_sources/hotword/applicable_input_device/mask/bluetooth_sco_headset">
           <BitParameter Name="bluetooth_sco_headset">0</BitParameter>
         </ConfigurableElement>
@@ -9861,6 +9897,18 @@
         <ConfigurableElement Path="/Policy/policy/input_sources/voice_recognition/applicable_input_device/mask/builtin_mic">
           <BitParameter Name="builtin_mic">0</BitParameter>
         </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/bluetooth_sco_headset">
+          <BitParameter Name="bluetooth_sco_headset">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/wired_headset">
+          <BitParameter Name="wired_headset">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/usb_device">
+          <BitParameter Name="usb_device">1</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/builtin_mic">
+          <BitParameter Name="builtin_mic">0</BitParameter>
+        </ConfigurableElement>
         <ConfigurableElement Path="/Policy/policy/input_sources/hotword/applicable_input_device/mask/bluetooth_sco_headset">
           <BitParameter Name="bluetooth_sco_headset">0</BitParameter>
         </ConfigurableElement>
@@ -9887,6 +9935,18 @@
         <ConfigurableElement Path="/Policy/policy/input_sources/voice_recognition/applicable_input_device/mask/builtin_mic">
           <BitParameter Name="builtin_mic">1</BitParameter>
         </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/bluetooth_sco_headset">
+          <BitParameter Name="bluetooth_sco_headset">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/wired_headset">
+          <BitParameter Name="wired_headset">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/usb_device">
+          <BitParameter Name="usb_device">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/builtin_mic">
+          <BitParameter Name="builtin_mic">1</BitParameter>
+        </ConfigurableElement>
         <ConfigurableElement Path="/Policy/policy/input_sources/hotword/applicable_input_device/mask/bluetooth_sco_headset">
           <BitParameter Name="bluetooth_sco_headset">0</BitParameter>
         </ConfigurableElement>
@@ -9913,6 +9973,18 @@
         <ConfigurableElement Path="/Policy/policy/input_sources/voice_recognition/applicable_input_device/mask/builtin_mic">
           <BitParameter Name="builtin_mic">0</BitParameter>
         </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/bluetooth_sco_headset">
+          <BitParameter Name="bluetooth_sco_headset">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/wired_headset">
+          <BitParameter Name="wired_headset">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/usb_device">
+          <BitParameter Name="usb_device">0</BitParameter>
+        </ConfigurableElement>
+        <ConfigurableElement Path="/Policy/policy/input_sources/unprocessed/applicable_input_device/mask/builtin_mic">
+          <BitParameter Name="builtin_mic">0</BitParameter>
+        </ConfigurableElement>
         <ConfigurableElement Path="/Policy/policy/input_sources/hotword/applicable_input_device/mask/bluetooth_sco_headset">
           <BitParameter Name="bluetooth_sco_headset">0</BitParameter>
         </ConfigurableElement>
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/device_for_strategy_accessibility.pfw b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/device_for_strategy_accessibility.pfw
index ecd56b0..eb11980 100644
--- a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/device_for_strategy_accessibility.pfw
+++ b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/device_for_strategy_accessibility.pfw
@@ -375,7 +375,7 @@
 						TelephonyMode IsNot InCall
 						TelephonyMode IsNot InCommunication
 						AvailableOutputDevices Excludes UsbAccessory
-						ForceUseForCommunication Is ForceSpeaker
+						ForceUseForMedia IsNot ForceSpeaker
 				AvailableOutputDevices Includes UsbDevice
 
 				component: /Policy/policy/strategies/accessibility/selected_output_devices/mask
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/device_for_strategy_sonification_respectful.pfw b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/device_for_strategy_sonification_respectful.pfw
index b30aa4c..cee7cd1 100644
--- a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/device_for_strategy_sonification_respectful.pfw
+++ b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/device_for_strategy_sonification_respectful.pfw
@@ -78,7 +78,7 @@
 				#
 				TelephonyMode IsNot InCall
 				TelephonyMode IsNot InCommunication
-				ForceUseForMedia Is ForceNoBtA2dp
+				ForceUseForMedia IsNot ForceNoBtA2dp
 				AvailableOutputDevices Includes BluetoothA2dp
 
 				component: /Policy/policy/strategies/sonification_respectful/selected_output_devices/mask
@@ -105,7 +105,7 @@
 				#
 				TelephonyMode IsNot InCall
 				TelephonyMode IsNot InCommunication
-				ForceUseForMedia Is ForceNoBtA2dp
+				ForceUseForMedia IsNot ForceNoBtA2dp
 				AvailableOutputDevices Includes BluetoothA2dpHeadphones
 
 				component: /Policy/policy/strategies/sonification_respectful/selected_output_devices/mask
@@ -132,7 +132,7 @@
 				#
 				TelephonyMode IsNot InCall
 				TelephonyMode IsNot InCommunication
-				ForceUseForMedia Is ForceNoBtA2dp
+				ForceUseForMedia IsNot ForceNoBtA2dp
 				AvailableOutputDevices Includes BluetoothA2dpSpeaker
 
 				component: /Policy/policy/strategies/sonification_respectful/selected_output_devices/mask
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/strategy_for_stream.pfw b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/strategy_for_stream.pfw
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/strategy_for_usage.pfw b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/strategy_for_usage.pfw
index 3f5da13..b3115e7 100644
--- a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/strategy_for_usage.pfw
+++ b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/strategy_for_usage.pfw
@@ -16,6 +16,7 @@
 			/Policy/policy/usages/assistance_navigation_guidance/applicable_strategy/strategy = media
 			/Policy/policy/usages/assistance_sonification/applicable_strategy/strategy = media
 			/Policy/policy/usages/game/applicable_strategy/strategy = media
+			/Policy/policy/usages/assistant/applicable_strategy/strategy = media
 
 	domain: AssistanceAccessibility
 		conf: Sonification
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicyClass.xml b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicyClass.xml
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicySubsystem-CommonTypes.xml b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicySubsystem-CommonTypes.xml
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicySubsystem.xml b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicySubsystem.xml
old mode 100755
new mode 100644
index 71b2b62..ad9c356
--- a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicySubsystem.xml
+++ b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicySubsystem.xml
@@ -68,7 +68,7 @@
 
         <!--#################### USAGE BEGIN ####################-->
 
-        <ComponentType Name="Usages" Description="associated to audio_stream_type_t definition,
+        <ComponentType Name="Usages" Description="associated to audio_usage_t definition,
                              identifier mapping must match the value of the enum">
             <Component Name="unknown" Type="Usage" Mapping="Amend1:Unknown,Identifier:0"/>
             <Component Name="media" Type="Usage" Mapping="Amend1:Media,Identifier:1"/>
@@ -97,6 +97,7 @@
             <Component Name="game" Type="Usage" Mapping="Amend1:BluetoothSco,Identifier:14"/>
             <Component Name="virtual_source" Type="Usage"
                                              Mapping="Amend1:VirtualSource,Identifier:15"/>
+            <Component Name="assistant" Type="Usage" Mapping="Amend1:Assistant,Identifier:16"/>
         </ComponentType>
 
         <!--#################### USAGE END ####################-->
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/policy_criteria.txt b/services/audiopolicy/engineconfigurable/parameter-framework/examples/policy_criteria.txt
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Android.mk b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Android.mk
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/InputSource.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/InputSource.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/InputSource.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/InputSource.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicyMappingKeys.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicyMappingKeys.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystem.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystem.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystem.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystem.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystemBuilder.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystemBuilder.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Strategy.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Strategy.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Strategy.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Strategy.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Stream.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Stream.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Stream.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Stream.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Usage.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Usage.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Usage.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Usage.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Collection.h b/services/audiopolicy/engineconfigurable/src/Collection.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Element.h b/services/audiopolicy/engineconfigurable/src/Element.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Engine.cpp b/services/audiopolicy/engineconfigurable/src/Engine.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Engine.h b/services/audiopolicy/engineconfigurable/src/Engine.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/EngineInstance.cpp b/services/audiopolicy/engineconfigurable/src/EngineInstance.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/InputSource.cpp b/services/audiopolicy/engineconfigurable/src/InputSource.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/InputSource.h b/services/audiopolicy/engineconfigurable/src/InputSource.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Strategy.cpp b/services/audiopolicy/engineconfigurable/src/Strategy.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Strategy.h b/services/audiopolicy/engineconfigurable/src/Strategy.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Stream.cpp b/services/audiopolicy/engineconfigurable/src/Stream.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Stream.h b/services/audiopolicy/engineconfigurable/src/Stream.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Usage.cpp b/services/audiopolicy/engineconfigurable/src/Usage.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Usage.h b/services/audiopolicy/engineconfigurable/src/Usage.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/wrapper/Android.mk b/services/audiopolicy/engineconfigurable/wrapper/Android.mk
index f4283a8..066ee0d 100644
--- a/services/audiopolicy/engineconfigurable/wrapper/Android.mk
+++ b/services/audiopolicy/engineconfigurable/wrapper/Android.mk
@@ -8,15 +8,15 @@
 
 LOCAL_C_INCLUDES := \
     $(LOCAL_PATH)/include \
-    $(TARGET_OUT_HEADERS)/parameter \
     $(TOPDIR)frameworks/av/services/audiopolicy/engineconfigurable/include \
     $(TOPDIR)frameworks/av/services/audiopolicy/engineconfigurable/interface \
     $(TOPDIR)frameworks/av/services/audiopolicy/utilities/convert \
 
 LOCAL_SRC_FILES:= ParameterManagerWrapper.cpp
 
-LOCAL_STATIC_LIBRARIES := \
-    libmedia_helper \
+LOCAL_SHARED_LIBRARIES := \
+    libparameter \
+    libmedia_helper
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
 
diff --git a/services/audiopolicy/engineconfigurable/wrapper/ParameterManagerWrapper.cpp b/services/audiopolicy/engineconfigurable/wrapper/ParameterManagerWrapper.cpp
old mode 100755
new mode 100644
index 6872e52..9b0442e
--- a/services/audiopolicy/engineconfigurable/wrapper/ParameterManagerWrapper.cpp
+++ b/services/audiopolicy/engineconfigurable/wrapper/ParameterManagerWrapper.cpp
@@ -22,7 +22,7 @@
 #include <ParameterMgrPlatformConnector.h>
 #include <SelectionCriterionTypeInterface.h>
 #include <SelectionCriterionInterface.h>
-#include <convert.h>
+#include <media/convert.h>
 #include <algorithm>
 #include <cutils/config_utils.h>
 #include <cutils/misc.h>
@@ -48,7 +48,7 @@
 
     virtual void info(const string &log)
     {
-        ALOGD("policy-parameter-manager: %s", log.c_str());
+        ALOGV("policy-parameter-manager: %s", log.c_str());
     }
     virtual void warning(const string &log)
     {
diff --git a/services/audiopolicy/engineconfigurable/wrapper/audio_policy_criteria_conf.h b/services/audiopolicy/engineconfigurable/wrapper/audio_policy_criteria_conf.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/wrapper/config/audio_policy_criteria.conf b/services/audiopolicy/engineconfigurable/wrapper/config/audio_policy_criteria.conf
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/wrapper/include/ParameterManagerWrapper.h b/services/audiopolicy/engineconfigurable/wrapper/include/ParameterManagerWrapper.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/enginedefault/Android.mk b/services/audiopolicy/enginedefault/Android.mk
old mode 100755
new mode 100644
index 85d1822..b37b379
--- a/services/audiopolicy/enginedefault/Android.mk
+++ b/services/audiopolicy/enginedefault/Android.mk
@@ -35,13 +35,12 @@
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_STATIC_LIBRARIES := \
-    libmedia_helper \
     libaudiopolicycomponents \
-    libxml2
 
 LOCAL_SHARED_LIBRARIES += \
+    liblog \
     libcutils \
     libutils \
-    libaudioutils \
+    libmedia_helper
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/services/audiopolicy/enginedefault/include/AudioPolicyEngineInstance.h b/services/audiopolicy/enginedefault/include/AudioPolicyEngineInstance.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp
old mode 100755
new mode 100644
index d31429c..096ffd1
--- a/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -202,6 +202,7 @@
 
     case AUDIO_USAGE_MEDIA:
     case AUDIO_USAGE_GAME:
+    case AUDIO_USAGE_ASSISTANT:
     case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:
     case AUDIO_USAGE_ASSISTANCE_SONIFICATION:
         return STRATEGY_MEDIA;
@@ -320,8 +321,7 @@
             if (((availableInputDevices.types() &
                     AUDIO_DEVICE_IN_TELEPHONY_RX & ~AUDIO_DEVICE_BIT_IN) == 0) ||
                     (((txDevice & availPrimaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) &&
-                         (primaryOutput->getAudioPort()->getModuleVersion() <
-                             AUDIO_DEVICE_API_VERSION_3_0))) {
+                         (primaryOutput->getAudioPort()->getModuleVersionMajor() < 3))) {
                 availableOutputDevicesType = availPrimaryOutputDevices;
             }
         }
@@ -356,6 +356,8 @@
             if (device) break;
             device = availableOutputDevicesType & AUDIO_DEVICE_OUT_LINE;
             if (device) break;
+            device = availableOutputDevicesType & AUDIO_DEVICE_OUT_USB_HEADSET;
+            if (device) break;
             device = availableOutputDevicesType & AUDIO_DEVICE_OUT_USB_DEVICE;
             if (device) break;
             if (!isInCall()) {
@@ -418,6 +420,25 @@
                 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) {
             device = availableOutputDevicesType & AUDIO_DEVICE_OUT_SPEAKER;
         }
+
+        // if SCO headset is connected and we are told to use it, play ringtone over
+        // speaker and BT SCO
+        if (((availableOutputDevicesType & AUDIO_DEVICE_OUT_ALL_SCO) != 0) &&
+                (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO)) {
+            uint32_t device2 = AUDIO_DEVICE_NONE;
+            device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
+            if (device2 == AUDIO_DEVICE_NONE) {
+                device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
+            }
+            if (device2 == AUDIO_DEVICE_NONE) {
+                device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_BLUETOOTH_SCO;
+            }
+
+            if (device2 != AUDIO_DEVICE_NONE) {
+                device |= device2;
+                break;
+            }
+        }
         // The second device used for sonification is the same as the device used by media strategy
         // FALL THROUGH
 
@@ -490,6 +511,9 @@
             device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_WIRED_HEADSET;
         }
         if (device2 == AUDIO_DEVICE_NONE) {
+            device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_USB_HEADSET;
+        }
+        if (device2 == AUDIO_DEVICE_NONE) {
             device2 = availableOutputDevicesType & AUDIO_DEVICE_OUT_USB_ACCESSORY;
         }
         if (device2 == AUDIO_DEVICE_NONE) {
@@ -572,6 +596,8 @@
         device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
     } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) {
         device = AUDIO_DEVICE_IN_WIRED_HEADSET;
+    } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_HEADSET) {
+        device = AUDIO_DEVICE_IN_USB_HEADSET;
     } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) {
         device = AUDIO_DEVICE_IN_USB_DEVICE;
     } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) {
@@ -602,6 +628,8 @@
         default:    // FORCE_NONE
             if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) {
                 device = AUDIO_DEVICE_IN_WIRED_HEADSET;
+            } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_HEADSET) {
+                device = AUDIO_DEVICE_IN_USB_HEADSET;
             } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) {
                 device = AUDIO_DEVICE_IN_USB_DEVICE;
             } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) {
@@ -627,6 +655,8 @@
             device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
         } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) {
             device = AUDIO_DEVICE_IN_WIRED_HEADSET;
+        } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_HEADSET) {
+            device = AUDIO_DEVICE_IN_USB_HEADSET;
         } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) {
             device = AUDIO_DEVICE_IN_USB_DEVICE;
         } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) {
diff --git a/services/audiopolicy/enginedefault/src/Engine.h b/services/audiopolicy/enginedefault/src/Engine.h
old mode 100755
new mode 100644
index 606ad28..57538c4
--- a/services/audiopolicy/enginedefault/src/Engine.h
+++ b/services/audiopolicy/enginedefault/src/Engine.h
@@ -43,7 +43,7 @@
     class ManagerInterfaceImpl : public AudioPolicyManagerInterface
     {
     public:
-        ManagerInterfaceImpl(Engine *policyEngine)
+        explicit ManagerInterfaceImpl(Engine *policyEngine)
             : mPolicyEngine(policyEngine) {}
 
         virtual void setObserver(AudioPolicyManagerObserver *observer)
diff --git a/services/audiopolicy/enginedefault/src/EngineInstance.cpp b/services/audiopolicy/enginedefault/src/EngineInstance.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index d265f11..e8e531a 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -24,20 +24,22 @@
 #define ALOGVV(a...) do { } while(0)
 #endif
 
-#define AUDIO_POLICY_XML_CONFIG_FILE "/system/etc/audio_policy_configuration.xml"
+#define AUDIO_POLICY_XML_CONFIG_FILE_PATH_MAX_LENGTH 128
+#define AUDIO_POLICY_XML_CONFIG_FILE_NAME "audio_policy_configuration.xml"
 
 #include <inttypes.h>
 #include <math.h>
 
 #include <AudioPolicyManagerInterface.h>
 #include <AudioPolicyEngineInstance.h>
+#include <cutils/atomic.h>
 #include <cutils/properties.h>
 #include <utils/Log.h>
-#include <hardware/audio.h>
-#include <hardware/audio_effect.h>
 #include <media/AudioParameter.h>
 #include <media/AudioPolicyHelper.h>
 #include <soundtrigger/SoundTrigger.h>
+#include <system/audio.h>
+#include <audio_policy_conf.h>
 #include "AudioPolicyManager.h"
 #ifndef USE_XML_AUDIO_POLICY_CONF
 #include <ConfigParsingUtils.h>
@@ -64,6 +66,17 @@
     return setDeviceConnectionStateInt(device, state, device_address, device_name);
 }
 
+void AudioPolicyManager::broadcastDeviceConnectionState(audio_devices_t device,
+                                                        audio_policy_dev_state_t state,
+                                                        const String8 &device_address)
+{
+    AudioParameter param(device_address);
+    const String8 key(state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE ?
+                AudioParameter::keyStreamConnect : AudioParameter::keyStreamDisconnect);
+    param.addInt(key, device);
+    mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString());
+}
+
 status_t AudioPolicyManager::setDeviceConnectionStateInt(audio_devices_t device,
                                                          audio_policy_dev_state_t state,
                                                          const char *device_address,
@@ -112,8 +125,15 @@
                 return NO_MEMORY;
             }
 
+            // Before checking outputs, broadcast connect event to allow HAL to retrieve dynamic
+            // parameters on newly connected devices (instead of opening the outputs...)
+            broadcastDeviceConnectionState(device, state, devDesc->mAddress);
+
             if (checkOutputsForDevice(devDesc, state, outputs, devDesc->mAddress) != NO_ERROR) {
                 mAvailableOutputDevices.remove(devDesc);
+
+                broadcastDeviceConnectionState(device, AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE,
+                                               devDesc->mAddress);
                 return INVALID_OPERATION;
             }
             // Propagate device availability to Engine
@@ -125,11 +145,6 @@
             ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs",
                   outputs.size());
 
-            // Send connect to HALs
-            AudioParameter param = AudioParameter(devDesc->mAddress);
-            param.addInt(String8(AUDIO_PARAMETER_DEVICE_CONNECT), device);
-            mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString());
-
             } break;
         // handle output device disconnection
         case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: {
@@ -141,9 +156,7 @@
             ALOGV("setDeviceConnectionState() disconnecting output device %x", device);
 
             // Send Disconnect to HALs
-            AudioParameter param = AudioParameter(devDesc->mAddress);
-            param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device);
-            mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString());
+            broadcastDeviceConnectionState(device, state, devDesc->mAddress);
 
             // remove device from available output devices
             mAvailableOutputDevices.remove(devDesc);
@@ -226,7 +239,14 @@
                       device);
                 return INVALID_OPERATION;
             }
+
+            // Before checking intputs, broadcast connect event to allow HAL to retrieve dynamic
+            // parameters on newly connected devices (instead of opening the inputs...)
+            broadcastDeviceConnectionState(device, state, devDesc->mAddress);
+
             if (checkInputsForDevice(devDesc, state, inputs, devDesc->mAddress) != NO_ERROR) {
+                broadcastDeviceConnectionState(device, AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE,
+                                               devDesc->mAddress);
                 return INVALID_OPERATION;
             }
 
@@ -237,11 +257,6 @@
                 return NO_MEMORY;
             }
 
-            // Set connect to HALs
-            AudioParameter param = AudioParameter(devDesc->mAddress);
-            param.addInt(String8(AUDIO_PARAMETER_DEVICE_CONNECT), device);
-            mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString());
-
             // Propagate device availability to Engine
             mEngine->setDeviceConnectionState(devDesc, state);
         } break;
@@ -256,9 +271,7 @@
             ALOGV("setDeviceConnectionState() disconnecting input device %x", device);
 
             // Set Disconnect to HALs
-            AudioParameter param = AudioParameter(devDesc->mAddress);
-            param.addInt(String8(AUDIO_PARAMETER_DEVICE_DISCONNECT), device);
-            mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString());
+            broadcastDeviceConnectionState(device, state, devDesc->mAddress);
 
             checkInputsForDevice(devDesc, state, inputs, devDesc->mAddress);
             mAvailableInputDevices.remove(devDesc);
@@ -322,6 +335,50 @@
             AUDIO_POLICY_DEVICE_STATE_AVAILABLE : AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
 }
 
+status_t AudioPolicyManager::handleDeviceConfigChange(audio_devices_t device,
+                                                      const char *device_address,
+                                                      const char *device_name)
+{
+    status_t status;
+
+    ALOGV("handleDeviceConfigChange(() device: 0x%X, address %s name %s",
+          device, device_address, device_name);
+
+    // connect/disconnect only 1 device at a time
+    if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE;
+
+    // Check if the device is currently connected
+    sp<DeviceDescriptor> devDesc =
+            mHwModules.getDeviceDescriptor(device, device_address, device_name);
+    ssize_t index = mAvailableOutputDevices.indexOf(devDesc);
+    if (index < 0) {
+        // Nothing to do: device is not connected
+        return NO_ERROR;
+    }
+
+    // Toggle the device state: UNAVAILABLE -> AVAILABLE
+    // This will force reading again the device configuration
+    status = setDeviceConnectionState(device,
+                                      AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE,
+                                      device_address, device_name);
+    if (status != NO_ERROR) {
+        ALOGW("handleDeviceConfigChange() error disabling connection state: %d",
+              status);
+        return status;
+    }
+
+    status = setDeviceConnectionState(device,
+                                      AUDIO_POLICY_DEVICE_STATE_AVAILABLE,
+                                      device_address, device_name);
+    if (status != NO_ERROR) {
+        ALOGW("handleDeviceConfigChange() error enabling connection state: %d",
+              status);
+        return status;
+    }
+
+    return NO_ERROR;
+}
+
 uint32_t AudioPolicyManager::updateCallRouting(audio_devices_t rxDevice, uint32_t delayMs)
 {
     bool createTxPatch = false;
@@ -437,15 +494,17 @@
         // FIXME: would be better to refine to only inputs whose profile connects to the
         // call TX device but this information is not in the audio patch and logic here must be
         // symmetric to the one in startInput()
-        audio_io_handle_t activeInput = mInputs.getActiveInput();
-        if (activeInput != 0) {
-            sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput);
-            if (activeDesc->getModuleHandle() == txSourceDeviceDesc->getModuleHandle()) {
-                //FIXME: consider all active sessions
-                AudioSessionCollection activeSessions = activeDesc->getActiveAudioSessions();
-                audio_session_t activeSession = activeSessions.keyAt(0);
-                stopInput(activeInput, activeSession);
-                releaseInput(activeInput, activeSession);
+        Vector<sp <AudioInputDescriptor> > activeInputs = mInputs.getActiveInputs();
+        for (size_t i = 0; i < activeInputs.size(); i++) {
+            sp<AudioInputDescriptor> activeDesc = activeInputs[i];
+            if (activeDesc->hasSameHwModuleAs(txSourceDeviceDesc)) {
+                AudioSessionCollection activeSessions =
+                        activeDesc->getAudioSessions(true /*activeOnly*/);
+                for (size_t j = 0; j < activeSessions.size(); j++) {
+                    audio_session_t activeSession = activeSessions.keyAt(j);
+                    stopInput(activeDesc->mIoHandle, activeSession);
+                    releaseInput(activeDesc->mIoHandle, activeSession);
+                }
             }
         }
 
@@ -579,6 +638,9 @@
                                          audio_policy_forced_cfg_t config)
 {
     ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mEngine->getPhoneState());
+    if (config == mEngine->getForceUse(usage)) {
+        return;
+    }
 
     if (mEngine->setForceUse(usage, config) != NO_ERROR) {
         ALOGW("setForceUse() could not set force cfg %d for usage %d", config, usage);
@@ -616,15 +678,16 @@
         }
     }
 
-    audio_io_handle_t activeInput = mInputs.getActiveInput();
-    if (activeInput != 0) {
-        sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput);
-        audio_devices_t newDevice = getNewInputDevice(activeInput);
+    Vector<sp <AudioInputDescriptor> > activeInputs = mInputs.getActiveInputs();
+    for (size_t i = 0; i < activeInputs.size(); i++) {
+        sp<AudioInputDescriptor> activeDesc = activeInputs[i];
+        audio_devices_t newDevice = getNewInputDevice(activeDesc);
         // Force new input selection if the new device can not be reached via current input
-        if (activeDesc->mProfile->getSupportedDevices().types() & (newDevice & ~AUDIO_DEVICE_BIT_IN)) {
-            setInputDevice(activeInput, newDevice);
+        if (activeDesc->mProfile->getSupportedDevices().types() &
+                (newDevice & ~AUDIO_DEVICE_BIT_IN)) {
+            setInputDevice(activeDesc->mIoHandle, newDevice);
         } else {
-            closeInput(activeInput);
+            closeInput(activeDesc->mIoHandle);
         }
     }
 }
@@ -694,9 +757,8 @@
     ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x",
           device, stream, samplingRate, format, channelMask, flags);
 
-    return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE,
-                              stream, samplingRate,format, channelMask,
-                              flags, offloadInfo);
+    return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE, stream, samplingRate, format,
+                              channelMask, flags, offloadInfo);
 }
 
 status_t AudioPolicyManager::getOutputForAttr(const audio_attributes_t *attr,
@@ -704,12 +766,10 @@
                                               audio_session_t session,
                                               audio_stream_type_t *stream,
                                               uid_t uid,
-                                              uint32_t samplingRate,
-                                              audio_format_t format,
-                                              audio_channel_mask_t channelMask,
+                                              const audio_config_t *config,
                                               audio_output_flags_t flags,
                                               audio_port_handle_t selectedDeviceId,
-                                              const audio_offload_info_t *offloadInfo)
+                                              audio_port_handle_t *portId)
 {
     audio_attributes_t attributes;
     if (attr != NULL) {
@@ -727,10 +787,16 @@
         }
         stream_type_to_audio_attributes(*stream, &attributes);
     }
+
+    // TODO: check for existing client for this port ID
+    if (*portId == AUDIO_PORT_HANDLE_NONE) {
+        *portId = AudioPort::getNextUniqueId();
+    }
+
     sp<SwAudioOutputDescriptor> desc;
     if (mPolicyMixes.getOutputForAttr(attributes, uid, desc) == NO_ERROR) {
         ALOG_ASSERT(desc != 0, "Invalid desc returned by getOutputForAttr");
-        if (!audio_has_proportional_frames(format)) {
+        if (!audio_has_proportional_frames(config->format)) {
             return BAD_VALUE;
         }
         *stream = streamTypefromAttributesInt(&attributes);
@@ -768,11 +834,11 @@
     }
 
     ALOGV("getOutputForAttr() device 0x%x, samplingRate %d, format %x, channelMask %x, flags %x",
-          device, samplingRate, format, channelMask, flags);
+          device, config->sample_rate, config->format, config->channel_mask, flags);
 
     *output = getOutputForDevice(device, session, *stream,
-                                 samplingRate, format, channelMask,
-                                 flags, offloadInfo);
+                                 config->sample_rate, config->format, config->channel_mask,
+                                 flags, &config->offload_info);
     if (*output == AUDIO_IO_HANDLE_NONE) {
         mOutputRoutes.removeRoute(session);
         return INVALID_OPERATION;
@@ -783,7 +849,7 @@
 
 audio_io_handle_t AudioPolicyManager::getOutputForDevice(
         audio_devices_t device,
-        audio_session_t session __unused,
+        audio_session_t session,
         audio_stream_type_t stream,
         uint32_t samplingRate,
         audio_format_t format,
@@ -892,13 +958,22 @@
             sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i);
             if (!desc->isDuplicated() && (profile == desc->mProfile)) {
                 outputDesc = desc;
-                // reuse direct output if currently open and configured with same parameters
+                // reuse direct output if currently open by the same client
+                // and configured with same parameters
                 if ((samplingRate == outputDesc->mSamplingRate) &&
-                        audio_formats_match(format, outputDesc->mFormat) &&
-                        (channelMask == outputDesc->mChannelMask)) {
-                    outputDesc->mDirectOpenCount++;
-                    ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i));
-                    return mOutputs.keyAt(i);
+                    audio_formats_match(format, outputDesc->mFormat) &&
+                    (channelMask == outputDesc->mChannelMask)) {
+                  if (session == outputDesc->mDirectClientSession) {
+                      outputDesc->mDirectOpenCount++;
+                      ALOGV("getOutput() reusing direct output %d for session %d",
+                            mOutputs.keyAt(i), session);
+                      return mOutputs.keyAt(i);
+                  } else {
+                      ALOGV("getOutput() do not reuse direct output because current client (%d) "
+                            "is not the same as requesting client (%d)",
+                            outputDesc->mDirectClientSession, session);
+                      goto non_direct_output;
+                  }
                 }
             }
         }
@@ -934,11 +1009,14 @@
         if (offloadInfo != NULL) {
             config.offload_info = *offloadInfo;
         }
+        DeviceVector outputDevices = mAvailableOutputDevices.getDevicesFromType(device);
+        String8 address = outputDevices.size() > 0 ? outputDevices.itemAt(0)->mAddress
+                : String8("");
         status = mpClientInterface->openOutput(profile->getModuleHandle(),
                                                &output,
                                                &config,
                                                &outputDesc->mDevice,
-                                               String8(""),
+                                               address,
                                                &outputDesc->mLatency,
                                                outputDesc->mFlags);
 
@@ -966,13 +1044,9 @@
         outputDesc->mRefCount[stream] = 0;
         outputDesc->mStopTime[stream] = 0;
         outputDesc->mDirectOpenCount = 1;
+        outputDesc->mDirectClientSession = session;
 
-        audio_io_handle_t srcOutput = getOutputForEffect();
         addOutput(output, outputDesc);
-        audio_io_handle_t dstOutput = getOutputForEffect();
-        if (dstOutput == output) {
-            mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput);
-        }
         mPreviousOutputs = mOutputs;
         ALOGV("getOutput() returns new direct output %d", output);
         mpClientInterface->onAudioPortListUpdate();
@@ -1148,7 +1222,7 @@
     return status;
 }
 
-status_t AudioPolicyManager::startSource(sp<AudioOutputDescriptor> outputDesc,
+status_t AudioPolicyManager::startSource(const sp<AudioOutputDescriptor>& outputDesc,
                                              audio_stream_type_t stream,
                                              audio_devices_t device,
                                              const char *address,
@@ -1180,11 +1254,16 @@
     // necessary for a correct control of hardware output routing by startOutput() and stopOutput()
     outputDesc->changeRefCount(stream, 1);
 
+    if (stream == AUDIO_STREAM_MUSIC) {
+        selectOutputForMusicEffects();
+    }
+
     if (outputDesc->mRefCount[stream] == 1 || device != AUDIO_DEVICE_NONE) {
         // starting an output being rerouted?
         if (device == AUDIO_DEVICE_NONE) {
             device = getNewOutputDevice(outputDesc, false /*fromCache*/);
         }
+
         routing_strategy strategy = getStrategy(stream);
         bool shouldWait = (strategy == STRATEGY_SONIFICATION) ||
                             (strategy == STRATEGY_SONIFICATION_RESPECTFUL) ||
@@ -1286,7 +1365,7 @@
     return stopSource(outputDesc, stream, forceDeviceUpdate);
 }
 
-status_t AudioPolicyManager::stopSource(sp<AudioOutputDescriptor> outputDesc,
+status_t AudioPolicyManager::stopSource(const sp<AudioOutputDescriptor>& outputDesc,
                                             audio_stream_type_t stream,
                                             bool forceDeviceUpdate)
 {
@@ -1337,6 +1416,9 @@
             // update the outputs if stopping one with a stream that can affect notification routing
             handleNotificationRoutingForStream(stream);
         }
+        if (stream == AUDIO_STREAM_MUSIC) {
+            selectOutputForMusicEffects();
+        }
         return NO_ERROR;
     } else {
         ALOGW("stopOutput() refcount is already 0");
@@ -1380,13 +1462,6 @@
         }
         if (--desc->mDirectOpenCount == 0) {
             closeOutput(output);
-            // If effects where present on the output, audioflinger moved them to the primary
-            // output by default: move them back to the appropriate output.
-            audio_io_handle_t dstOutput = getOutputForEffect();
-            if (hasPrimaryOutput() && dstOutput != mPrimaryOutput->mIoHandle) {
-                mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX,
-                                               mPrimaryOutput->mIoHandle, dstOutput);
-            }
             mpClientInterface->onAudioPortListUpdate();
         }
     }
@@ -1397,19 +1472,19 @@
                                              audio_io_handle_t *input,
                                              audio_session_t session,
                                              uid_t uid,
-                                             uint32_t samplingRate,
-                                             audio_format_t format,
-                                             audio_channel_mask_t channelMask,
+                                             const audio_config_base_t *config,
                                              audio_input_flags_t flags,
                                              audio_port_handle_t selectedDeviceId,
-                                             input_type_t *inputType)
+                                             input_type_t *inputType,
+                                             audio_port_handle_t *portId)
 {
     ALOGV("getInputForAttr() source %d, samplingRate %d, format %d, channelMask %x,"
             "session %d, flags %#x",
-          attr->source, samplingRate, format, channelMask, session, flags);
+          attr->source, config->sample_rate, config->format, config->channel_mask, session, flags);
 
     *input = AUDIO_IO_HANDLE_NONE;
     *inputType = API_INPUT_INVALID;
+
     audio_devices_t device;
     // handle legacy remote submix case where the address was not always specified
     String8 address = String8("");
@@ -1422,6 +1497,11 @@
     }
     halInputSource = inputSource;
 
+    // TODO: check for existing client for this port ID
+    if (*portId == AUDIO_PORT_HANDLE_NONE) {
+        *portId = AudioPort::getNextUniqueId();
+    }
+
     // Explicit routing?
     sp<DeviceDescriptor> deviceDesc;
     for (size_t i = 0; i < mAvailableInputDevices.size(); i++) {
@@ -1471,12 +1551,13 @@
     }
 
     *input = getInputForDevice(device, address, session, uid, inputSource,
-                               samplingRate, format, channelMask, flags,
+                               config->sample_rate, config->format, config->channel_mask, flags,
                                policyMix);
     if (*input == AUDIO_IO_HANDLE_NONE) {
         mInputRoutes.removeRoute(session);
         return INVALID_OPERATION;
     }
+
     ALOGV("getInputForAttr() returns input type = %d", *inputType);
     return NO_ERROR;
 }
@@ -1553,14 +1634,24 @@
                                                               isSoundTrigger,
                                                               policyMix, mpClientInterface);
 
-// TODO enable input reuse
+// FIXME: disable concurrent capture until UI is ready
 #if 0
     // reuse an open input if possible
+    sp<AudioInputDescriptor> reusedInputDesc;
     for (size_t i = 0; i < mInputs.size(); i++) {
         sp<AudioInputDescriptor> desc = mInputs.valueAt(i);
-        // reuse input if it shares the same profile and same sound trigger attribute
-        if (profile == desc->mProfile &&
-            isSoundTrigger == desc->isSoundTrigger()) {
+        // reuse input if:
+        // - it shares the same profile
+        //      AND
+        // - it is not a reroute submix input
+        //      AND
+        // - it is: not used for sound trigger
+        //                OR
+        //          used for sound trigger and all clients use the same session ID
+        //
+        if ((profile == desc->mProfile) &&
+            (isSoundTrigger == desc->isSoundTrigger()) &&
+            !is_virtual_input_device(device)) {
 
             sp<AudioSession> as = desc->getAudioSession(session);
             if (as != 0) {
@@ -1570,13 +1661,41 @@
                 } else {
                     ALOGW("getInputForDevice() record with different attributes"
                           " exists for session %d", session);
-                    return input;
+                    continue;
                 }
+            } else if (isSoundTrigger) {
+                continue;
+            }
+
+            // Reuse the already opened input stream on this profile if:
+            // - the new capture source is background OR
+            // - the path requested configurations match OR
+            // - the new source priority is less than the highest source priority on this input
+            // If the input stream cannot be reused, close it before opening a new stream
+            // on the same profile for the new client so that the requested path configuration
+            // can be selected.
+            if (!isConcurrentSource(inputSource) &&
+                    ((desc->mSamplingRate != samplingRate ||
+                    desc->mChannelMask != channelMask ||
+                    !audio_formats_match(desc->mFormat, format)) &&
+                    (source_priority(desc->getHighestPrioritySource(false /*activeOnly*/)) <
+                     source_priority(inputSource)))) {
+                reusedInputDesc = desc;
+                continue;
             } else {
                 desc->addAudioSession(session, audioSession);
+                ALOGV("%s: reusing input %d", __FUNCTION__, mInputs.keyAt(i));
+                return mInputs.keyAt(i);
             }
-            ALOGV("getInputForDevice() reusing input %d", mInputs.keyAt(i));
-            return mInputs.keyAt(i);
+        }
+    }
+
+    if (reusedInputDesc != 0) {
+        AudioSessionCollection sessions = reusedInputDesc->getAudioSessions(false /*activeOnly*/);
+        for (size_t j = 0; j < sessions.size(); j++) {
+            audio_session_t currentSession = sessions.keyAt(j);
+            stopInput(reusedInputDesc->mIoHandle, currentSession);
+            releaseInput(reusedInputDesc->mIoHandle, currentSession);
         }
     }
 #endif
@@ -1586,6 +1705,12 @@
     config.channel_mask = profileChannelMask;
     config.format = profileFormat;
 
+    if (address == "") {
+        DeviceVector inputDevices = mAvailableInputDevices.getDevicesFromType(device);
+        //   the inputs vector must be of size 1, but we don't want to crash here
+        address = inputDevices.size() > 0 ? inputDevices.itemAt(0)->mAddress : String8("");
+    }
+
     status_t status = mpClientInterface->openInput(profile->getModuleHandle(),
                                                    &input,
                                                    &config,
@@ -1622,10 +1747,56 @@
     return input;
 }
 
+//static
+bool AudioPolicyManager::isConcurrentSource(audio_source_t source)
+{
+    return (source == AUDIO_SOURCE_HOTWORD) ||
+            (source == AUDIO_SOURCE_VOICE_RECOGNITION) ||
+            (source == AUDIO_SOURCE_FM_TUNER);
+}
+
+bool AudioPolicyManager::isConcurentCaptureAllowed(const sp<AudioInputDescriptor>& inputDesc,
+        const sp<AudioSession>& audioSession)
+{
+    // Do not allow capture if an active voice call is using a software patch and
+    // the call TX source device is on the same HW module.
+    // FIXME: would be better to refine to only inputs whose profile connects to the
+    // call TX device but this information is not in the audio patch
+    if (mCallTxPatch != 0 &&
+        inputDesc->getModuleHandle() == mCallTxPatch->mPatch.sources[0].ext.device.hw_module) {
+        return false;
+    }
+
+    // starting concurrent capture is enabled if:
+    // 1) capturing for re-routing
+    // 2) capturing for HOTWORD source
+    // 3) capturing for FM TUNER source
+    // 3) All other active captures are either for re-routing or HOTWORD
+
+    if (is_virtual_input_device(inputDesc->mDevice) ||
+            isConcurrentSource(audioSession->inputSource())) {
+        return true;
+    }
+
+    Vector< sp<AudioInputDescriptor> > activeInputs = mInputs.getActiveInputs();
+    for (size_t i = 0; i <  activeInputs.size(); i++) {
+        sp<AudioInputDescriptor> activeInput = activeInputs[i];
+        if (!isConcurrentSource(activeInput->inputSource(true)) &&
+                !is_virtual_input_device(activeInput->mDevice)) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+
 status_t AudioPolicyManager::startInput(audio_io_handle_t input,
-                                        audio_session_t session)
+                                        audio_session_t session,
+                                        concurrency_type__mask_t *concurrency)
 {
     ALOGV("startInput() input %d", input);
+    *concurrency = API_INPUT_CONCURRENCY_NONE;
     ssize_t index = mInputs.indexOfKey(input);
     if (index < 0) {
         ALOGW("startInput() unknown input %d", input);
@@ -1639,86 +1810,132 @@
         return BAD_VALUE;
     }
 
-    // virtual input devices are compatible with other input devices
+// FIXME: disable concurrent capture until UI is ready
+#if 0
+    if (!isConcurentCaptureAllowed(inputDesc, audioSession)) {
+        ALOGW("startInput(%d) failed: other input already started", input);
+        return INVALID_OPERATION;
+    }
+
+    if (isInCall()) {
+        *concurrency |= API_INPUT_CONCURRENCY_CALL;
+    }
+    if (mInputs.activeInputsCountOnDevices() != 0) {
+        *concurrency |= API_INPUT_CONCURRENCY_CAPTURE;
+    }
+#else
     if (!is_virtual_input_device(inputDesc->mDevice)) {
+        if (mCallTxPatch != 0 &&
+            inputDesc->getModuleHandle() == mCallTxPatch->mPatch.sources[0].ext.device.hw_module) {
+            ALOGW("startInput(%d) failed: call in progress", input);
+            return INVALID_OPERATION;
+        }
 
-        // for a non-virtual input device, check if there is another (non-virtual) active input
-        audio_io_handle_t activeInput = mInputs.getActiveInput();
-        if (activeInput != 0 && activeInput != input) {
+        Vector< sp<AudioInputDescriptor> > activeInputs = mInputs.getActiveInputs();
+        for (size_t i = 0; i < activeInputs.size(); i++) {
+            sp<AudioInputDescriptor> activeDesc = activeInputs[i];
 
-            // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed,
-            // otherwise the active input continues and the new input cannot be started.
-            sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput);
-            if ((activeDesc->inputSource() == AUDIO_SOURCE_HOTWORD) &&
-                    !activeDesc->hasPreemptedSession(session)) {
-                ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput);
-                //FIXME: consider all active sessions
-                AudioSessionCollection activeSessions = activeDesc->getActiveAudioSessions();
-                audio_session_t activeSession = activeSessions.keyAt(0);
-                SortedVector<audio_session_t> sessions =
-                                           activeDesc->getPreemptedSessions();
-                sessions.add(activeSession);
-                inputDesc->setPreemptedSessions(sessions);
-                stopInput(activeInput, activeSession);
-                releaseInput(activeInput, activeSession);
+            if (is_virtual_input_device(activeDesc->mDevice)) {
+                continue;
+            }
+
+            audio_source_t activeSource = activeDesc->inputSource(true);
+            if (audioSession->inputSource() == AUDIO_SOURCE_HOTWORD) {
+                if (activeSource == AUDIO_SOURCE_HOTWORD) {
+                    if (activeDesc->hasPreemptedSession(session)) {
+                        ALOGW("startInput(%d) failed for HOTWORD: "
+                                "other input %d already started for HOTWORD",
+                              input, activeDesc->mIoHandle);
+                        return INVALID_OPERATION;
+                    }
+                } else {
+                    ALOGV("startInput(%d) failed for HOTWORD: other input %d already started",
+                          input, activeDesc->mIoHandle);
+                    return INVALID_OPERATION;
+                }
             } else {
-                ALOGE("startInput(%d) failed: other input %d already started", input, activeInput);
-                return INVALID_OPERATION;
+                if (activeSource != AUDIO_SOURCE_HOTWORD) {
+                    ALOGW("startInput(%d) failed: other input %d already started",
+                          input, activeDesc->mIoHandle);
+                    return INVALID_OPERATION;
+                }
             }
         }
 
-        // Do not allow capture if an active voice call is using a software patch and
-        // the call TX source device is on the same HW module.
-        // FIXME: would be better to refine to only inputs whose profile connects to the
-        // call TX device but this information is not in the audio patch
-        if (mCallTxPatch != 0 &&
-            inputDesc->getModuleHandle() == mCallTxPatch->mPatch.sources[0].ext.device.hw_module) {
-            return INVALID_OPERATION;
+        // if capture is allowed, preempt currently active HOTWORD captures
+        for (size_t i = 0; i < activeInputs.size(); i++) {
+            sp<AudioInputDescriptor> activeDesc = activeInputs[i];
+
+            if (is_virtual_input_device(activeDesc->mDevice)) {
+                continue;
+            }
+
+            audio_source_t activeSource = activeDesc->inputSource(true);
+            if (activeSource == AUDIO_SOURCE_HOTWORD) {
+                AudioSessionCollection activeSessions =
+                        activeDesc->getAudioSessions(true /*activeOnly*/);
+                audio_session_t activeSession = activeSessions.keyAt(0);
+                audio_io_handle_t activeHandle = activeDesc->mIoHandle;
+                SortedVector<audio_session_t> sessions = activeDesc->getPreemptedSessions();
+                sessions.add(activeSession);
+                inputDesc->setPreemptedSessions(sessions);
+                stopInput(activeHandle, activeSession);
+                releaseInput(activeHandle, activeSession);
+                ALOGV("startInput(%d) for HOTWORD preempting HOTWORD input %d",
+                      input, activeDesc->mIoHandle);
+            }
         }
     }
+#endif
+
+    // increment activity count before calling getNewInputDevice() below as only active sessions
+    // are considered for device selection
+    audioSession->changeActiveCount(1);
 
     // Routing?
     mInputRoutes.incRouteActivity(session);
 
-    if (!inputDesc->isActive() || mInputRoutes.hasRouteChanged(session)) {
-        // if input maps to a dynamic policy with an activity listener, notify of state change
-        if ((inputDesc->mPolicyMix != NULL)
-                && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) {
-            mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mDeviceAddress,
-                    MIX_STATE_MIXING);
-        }
-
+    if (audioSession->activeCount() == 1 || mInputRoutes.hasRouteChanged(session)) {
         // indicate active capture to sound trigger service if starting capture from a mic on
         // primary HW module
-        audio_devices_t device = getNewInputDevice(input);
-        audio_devices_t primaryInputDevices = availablePrimaryInputDevices();
-        if (((device & primaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) &&
-                mInputs.activeInputsCountOnDevices(primaryInputDevices) == 0) {
-            SoundTrigger::setCaptureState(true);
-        }
+        audio_devices_t device = getNewInputDevice(inputDesc);
         setInputDevice(input, device, true /* force */);
 
-        // automatically enable the remote submix output when input is started if not
-        // used by a policy mix of type MIX_TYPE_RECORDERS
-        // For remote submix (a virtual device), we open only one input per capture request.
-        if (audio_is_remote_submix_device(inputDesc->mDevice)) {
-            String8 address = String8("");
-            if (inputDesc->mPolicyMix == NULL) {
-                address = String8("0");
-            } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) {
-                address = inputDesc->mPolicyMix->mDeviceAddress;
+        if (inputDesc->getAudioSessionCount(true/*activeOnly*/) == 1) {
+            // if input maps to a dynamic policy with an activity listener, notify of state change
+            if ((inputDesc->mPolicyMix != NULL)
+                    && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) {
+                mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mDeviceAddress,
+                        MIX_STATE_MIXING);
             }
-            if (address != "") {
-                setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
-                        AUDIO_POLICY_DEVICE_STATE_AVAILABLE,
-                        address, "remote-submix");
+
+            audio_devices_t primaryInputDevices = availablePrimaryInputDevices();
+            if (((device & primaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) &&
+                    mInputs.activeInputsCountOnDevices(primaryInputDevices) == 1) {
+                SoundTrigger::setCaptureState(true);
+            }
+
+            // automatically enable the remote submix output when input is started if not
+            // used by a policy mix of type MIX_TYPE_RECORDERS
+            // For remote submix (a virtual device), we open only one input per capture request.
+            if (audio_is_remote_submix_device(inputDesc->mDevice)) {
+                String8 address = String8("");
+                if (inputDesc->mPolicyMix == NULL) {
+                    address = String8("0");
+                } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) {
+                    address = inputDesc->mPolicyMix->mDeviceAddress;
+                }
+                if (address != "") {
+                    setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
+                            AUDIO_POLICY_DEVICE_STATE_AVAILABLE,
+                            address, "remote-submix");
+                }
             }
         }
     }
 
     ALOGV("AudioPolicyManager::startInput() input source = %d", audioSession->inputSource());
 
-    audioSession->changeActiveCount(1);
     return NO_ERROR;
 }
 
@@ -1749,41 +1966,46 @@
     // Routing?
     mInputRoutes.decRouteActivity(session);
 
-    if (!inputDesc->isActive()) {
-        // if input maps to a dynamic policy with an activity listener, notify of state change
-        if ((inputDesc->mPolicyMix != NULL)
-                && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) {
-            mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mDeviceAddress,
-                    MIX_STATE_IDLE);
-        }
+    if (audioSession->activeCount() == 0) {
 
-        // automatically disable the remote submix output when input is stopped if not
-        // used by a policy mix of type MIX_TYPE_RECORDERS
-        if (audio_is_remote_submix_device(inputDesc->mDevice)) {
-            String8 address = String8("");
-            if (inputDesc->mPolicyMix == NULL) {
-                address = String8("0");
-            } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) {
-                address = inputDesc->mPolicyMix->mDeviceAddress;
+        if (inputDesc->isActive()) {
+            setInputDevice(input, getNewInputDevice(inputDesc), false /* force */);
+        } else {
+            // if input maps to a dynamic policy with an activity listener, notify of state change
+            if ((inputDesc->mPolicyMix != NULL)
+                    && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) {
+                mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mDeviceAddress,
+                        MIX_STATE_IDLE);
             }
-            if (address != "") {
-                setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
-                                         AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE,
-                                         address, "remote-submix");
+
+            // automatically disable the remote submix output when input is stopped if not
+            // used by a policy mix of type MIX_TYPE_RECORDERS
+            if (audio_is_remote_submix_device(inputDesc->mDevice)) {
+                String8 address = String8("");
+                if (inputDesc->mPolicyMix == NULL) {
+                    address = String8("0");
+                } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) {
+                    address = inputDesc->mPolicyMix->mDeviceAddress;
+                }
+                if (address != "") {
+                    setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
+                                             AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE,
+                                             address, "remote-submix");
+                }
             }
-        }
 
-        audio_devices_t device = inputDesc->mDevice;
-        resetInputDevice(input);
+            audio_devices_t device = inputDesc->mDevice;
+            resetInputDevice(input);
 
-        // indicate inactive capture to sound trigger service if stopping capture from a mic on
-        // primary HW module
-        audio_devices_t primaryInputDevices = availablePrimaryInputDevices();
-        if (((device & primaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) &&
-                mInputs.activeInputsCountOnDevices(primaryInputDevices) == 0) {
-            SoundTrigger::setCaptureState(false);
+            // indicate inactive capture to sound trigger service if stopping capture from a mic on
+            // primary HW module
+            audio_devices_t primaryInputDevices = availablePrimaryInputDevices();
+            if (((device & primaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) &&
+                    mInputs.activeInputsCountOnDevices(primaryInputDevices) == 0) {
+                SoundTrigger::setCaptureState(false);
+            }
+            inputDesc->clearPreemptedSessions();
         }
-        inputDesc->clearPreemptedSessions();
     }
     return NO_ERROR;
 }
@@ -1806,7 +2028,7 @@
     ALOG_ASSERT(inputDesc != 0);
 
     sp<AudioSession> audioSession = inputDesc->getAudioSession(session);
-    if (index < 0) {
+    if (audioSession == 0) {
         ALOGW("releaseInput() unknown session %d on input %d", session, input);
         return;
     }
@@ -1970,8 +2192,7 @@
     return NO_ERROR;
 }
 
-audio_io_handle_t AudioPolicyManager::selectOutputForEffects(
-                                            const SortedVector<audio_io_handle_t>& outputs)
+audio_io_handle_t AudioPolicyManager::selectOutputForMusicEffects()
 {
     // select one output among several suitable for global effects.
     // The priority is as follows:
@@ -1979,53 +2200,68 @@
     //    AudioFlinger will invalidate the track and the offloaded output
     //    will be closed causing the effect to be moved to a PCM output.
     // 2: A deep buffer output
-    // 3: the first output in the list
-
-    if (outputs.size() == 0) {
-        return 0;
-    }
-
-    audio_io_handle_t outputOffloaded = 0;
-    audio_io_handle_t outputDeepBuffer = 0;
-
-    for (size_t i = 0; i < outputs.size(); i++) {
-        sp<SwAudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]);
-        ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags);
-        if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) {
-            outputOffloaded = outputs[i];
-        }
-        if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) {
-            outputDeepBuffer = outputs[i];
-        }
-    }
-
-    ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d",
-          outputOffloaded, outputDeepBuffer);
-    if (outputOffloaded != 0) {
-        return outputOffloaded;
-    }
-    if (outputDeepBuffer != 0) {
-        return outputDeepBuffer;
-    }
-
-    return outputs[0];
-}
-
-audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc)
-{
-    // apply simple rule where global effects are attached to the same output as MUSIC streams
+    // 3: The primary output
+    // 4: the first output in the list
 
     routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC);
     audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/);
-    SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs);
+    SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs);
 
-    audio_io_handle_t output = selectOutputForEffects(dstOutputs);
-    ALOGV("getOutputForEffect() got output %d for fx %s flags %x",
-          output, (desc == NULL) ? "unspecified" : desc->name,  (desc == NULL) ? 0 : desc->flags);
+    if (outputs.size() == 0) {
+        return AUDIO_IO_HANDLE_NONE;
+    }
 
+    audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
+    bool activeOnly = true;
+
+    while (output == AUDIO_IO_HANDLE_NONE) {
+        audio_io_handle_t outputOffloaded = AUDIO_IO_HANDLE_NONE;
+        audio_io_handle_t outputDeepBuffer = AUDIO_IO_HANDLE_NONE;
+        audio_io_handle_t outputPrimary = AUDIO_IO_HANDLE_NONE;
+
+        for (size_t i = 0; i < outputs.size(); i++) {
+            sp<SwAudioOutputDescriptor> desc = mOutputs.valueFor(outputs[i]);
+            if (activeOnly && !desc->isStreamActive(AUDIO_STREAM_MUSIC)) {
+                continue;
+            }
+            ALOGV("selectOutputForMusicEffects activeOnly %d outputs[%zu] flags 0x%08x",
+                  activeOnly, i, desc->mFlags);
+            if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) {
+                outputOffloaded = outputs[i];
+            }
+            if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) {
+                outputDeepBuffer = outputs[i];
+            }
+            if ((desc->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) != 0) {
+                outputPrimary = outputs[i];
+            }
+        }
+        if (outputOffloaded != AUDIO_IO_HANDLE_NONE) {
+            output = outputOffloaded;
+        } else if (outputDeepBuffer != AUDIO_IO_HANDLE_NONE) {
+            output = outputDeepBuffer;
+        } else if (outputPrimary != AUDIO_IO_HANDLE_NONE) {
+            output = outputPrimary;
+        } else {
+            output = outputs[0];
+        }
+        activeOnly = false;
+    }
+
+    if (output != mMusicEffectOutput) {
+        mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mMusicEffectOutput, output);
+        mMusicEffectOutput = output;
+    }
+
+    ALOGV("selectOutputForMusicEffects selected output %d", output);
     return output;
 }
 
+audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc __unused)
+{
+    return selectOutputForMusicEffects();
+}
+
 status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc,
                                 audio_io_handle_t io,
                                 uint32_t strategy,
@@ -2094,7 +2330,7 @@
 //  - 2 if none found, look for a mix matching the attributes usage
 //  - 3 if none found, default to device and output selection by policy rules.
 
-status_t AudioPolicyManager::registerPolicyMixes(Vector<AudioMix> mixes)
+status_t AudioPolicyManager::registerPolicyMixes(const Vector<AudioMix>& mixes)
 {
     ALOGV("registerPolicyMixes() %zu mix(es)", mixes.size());
     status_t res = NO_ERROR;
@@ -2265,7 +2501,9 @@
     snprintf(buffer, SIZE, " Primary Output: %d\n",
              hasPrimaryOutput() ? mPrimaryOutput->mIoHandle : AUDIO_IO_HANDLE_NONE);
     result.append(buffer);
-    snprintf(buffer, SIZE, " Phone state: %d\n", mEngine->getPhoneState());
+    std::string stateLiteral;
+    AudioModeConverter::toString(mEngine->getPhoneState(), stateLiteral);
+    snprintf(buffer, SIZE, " Phone state: %s\n", stateLiteral.c_str());
     result.append(buffer);
     snprintf(buffer, SIZE, " Force use for communications %d\n",
              mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION));
@@ -2299,6 +2537,7 @@
     mVolumeCurves->dump(fd);
     mEffects.dump(fd);
     mAudioPatches.dump(fd);
+    mPolicyMixes.dump(fd);
 
     return NO_ERROR;
 }
@@ -2654,8 +2893,8 @@
                 // create a software bridge in PatchPanel if:
                 // - source and sink devices are on differnt HW modules OR
                 // - audio HAL version is < 3.0
-                if ((srcDeviceDesc->getModuleHandle() != sinkDeviceDesc->getModuleHandle()) ||
-                        (srcDeviceDesc->mModule->getHalVersion() < AUDIO_DEVICE_API_VERSION_3_0)) {
+                if (!srcDeviceDesc->hasSameHwModuleAs(sinkDeviceDesc) ||
+                        (srcDeviceDesc->mModule->getHalVersionMajor() < 3)) {
                     // support only one sink device for now to simplify output selection logic
                     if (patch->num_sinks > 1) {
                         return INVALID_OPERATION;
@@ -2754,7 +2993,7 @@
                 return BAD_VALUE;
             }
             setInputDevice(inputDesc->mIoHandle,
-                           getNewInputDevice(inputDesc->mIoHandle),
+                           getNewInputDevice(inputDesc),
                            true,
                            NULL);
         } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) {
@@ -2959,7 +3198,7 @@
 
 status_t AudioPolicyManager::startAudioSource(const struct audio_port_config *source,
                                   const audio_attributes_t *attributes,
-                                  audio_io_handle_t *handle,
+                                  audio_patch_handle_t *handle,
                                   uid_t uid)
 {
     ALOGV("%s source %p attributes %p handle %p", __FUNCTION__, source, attributes, handle);
@@ -2967,7 +3206,7 @@
         return BAD_VALUE;
     }
 
-    *handle = AUDIO_IO_HANDLE_NONE;
+    *handle = AUDIO_PATCH_HANDLE_NONE;
 
     if (source->role != AUDIO_PORT_ROLE_SOURCE ||
             source->type != AUDIO_PORT_TYPE_DEVICE) {
@@ -3017,7 +3256,7 @@
 
     if (srcDeviceDesc->getAudioPort()->mModule->getHandle() ==
             sinkDeviceDesc->getAudioPort()->mModule->getHandle() &&
-            srcDeviceDesc->getAudioPort()->mModule->getHalVersion() >= AUDIO_DEVICE_API_VERSION_3_0 &&
+            srcDeviceDesc->getAudioPort()->mModule->getHalVersionMajor() >= 3 &&
             srcDeviceDesc->getAudioPort()->mGains.size() > 0) {
         ALOGV("%s AUDIO_DEVICE_API_VERSION_3_0", __FUNCTION__);
         //   create patch between src device and output device
@@ -3074,7 +3313,7 @@
     return NO_ERROR;
 }
 
-status_t AudioPolicyManager::stopAudioSource(audio_io_handle_t handle __unused)
+status_t AudioPolicyManager::stopAudioSource(audio_patch_handle_t handle __unused)
 {
     sp<AudioSourceDescriptor> sourceDesc = mAudioSources.valueFor(handle);
     ALOGV("%s handle %d", __FUNCTION__, handle);
@@ -3180,6 +3419,33 @@
     return android_atomic_inc(&mAudioPortGeneration);
 }
 
+#ifdef USE_XML_AUDIO_POLICY_CONF
+// Treblized audio policy xml config will be located in /odm/etc or /vendor/etc.
+static const char *kConfigLocationList[] =
+        {"/odm/etc", "/vendor/etc", "/system/etc"};
+static const int kConfigLocationListSize =
+        (sizeof(kConfigLocationList) / sizeof(kConfigLocationList[0]));
+
+static status_t deserializeAudioPolicyXmlConfig(AudioPolicyConfig &config) {
+    char audioPolicyXmlConfigFile[AUDIO_POLICY_XML_CONFIG_FILE_PATH_MAX_LENGTH];
+    status_t ret;
+
+    for (int i = 0; i < kConfigLocationListSize; i++) {
+        PolicySerializer serializer;
+        snprintf(audioPolicyXmlConfigFile,
+                 sizeof(audioPolicyXmlConfigFile),
+                 "%s/%s",
+                 kConfigLocationList[i],
+                 AUDIO_POLICY_XML_CONFIG_FILE_NAME);
+        ret = serializer.deserialize(audioPolicyXmlConfigFile, config);
+        if (ret == NO_ERROR) {
+            break;
+        }
+    }
+    return ret;
+}
+#endif
+
 AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface)
     :
 #ifdef AUDIO_POLICY_TEST
@@ -3192,7 +3458,8 @@
     mBeaconPlayingRefCount(0),
     mBeaconMuted(false),
     mTtsOutputAvailable(false),
-    mMasterMono(false)
+    mMasterMono(false),
+    mMusicEffectOutput(AUDIO_IO_HANDLE_NONE)
 {
     mUidCached = getuid();
     mpClientInterface = clientInterface;
@@ -3207,8 +3474,7 @@
     AudioPolicyConfig config(mHwModules, mAvailableOutputDevices, mAvailableInputDevices,
                              mDefaultOutputDevice, speakerDrcEnabled,
                              static_cast<VolumeCurvesCollection *>(mVolumeCurves));
-    PolicySerializer serializer;
-    if (serializer.deserialize(AUDIO_POLICY_XML_CONFIG_FILE, config) != NO_ERROR) {
+    if (deserializeAudioPolicyXmlConfig(config) != NO_ERROR) {
 #else
     mVolumeCurves = new StreamDescriptorCollection();
     AudioPolicyConfig config(mHwModules, mAvailableOutputDevices, mAvailableInputDevices,
@@ -3528,7 +3794,7 @@
                         mTestFormat = format;
                     } else if (mTestOutputs[mCurOutput] != 0) {
                         AudioParameter outputParam = AudioParameter();
-                        outputParam.addInt(String8("format"), format);
+                        outputParam.addInt(String8(AudioParameter::keyStreamSupportedFormats), format);
                         mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
                     }
                 }
@@ -3547,7 +3813,7 @@
                         mTestChannels = channels;
                     } else if (mTestOutputs[mCurOutput] != 0) {
                         AudioParameter outputParam = AudioParameter();
-                        outputParam.addInt(String8("channels"), channels);
+                        outputParam.addInt(String8(AudioParameter::keyStreamSupportedChannels), channels);
                         mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
                     }
                 }
@@ -3560,7 +3826,7 @@
                         mTestSamplingRate = samplingRate;
                     } else if (mTestOutputs[mCurOutput] != 0) {
                         AudioParameter outputParam = AudioParameter();
-                        outputParam.addInt(String8("sampling_rate"), samplingRate);
+                        outputParam.addInt(String8(AudioParameter::keyStreamSupportedSamplingRates), samplingRate);
                         mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
                     }
                 }
@@ -3633,29 +3899,31 @@
 
 // ---
 
-void AudioPolicyManager::addOutput(audio_io_handle_t output, sp<SwAudioOutputDescriptor> outputDesc)
+void AudioPolicyManager::addOutput(audio_io_handle_t output, const sp<SwAudioOutputDescriptor>& outputDesc)
 {
     outputDesc->setIoHandle(output);
     mOutputs.add(output, outputDesc);
     updateMono(output); // update mono status when adding to output list
+    selectOutputForMusicEffects();
     nextAudioPortGeneration();
 }
 
 void AudioPolicyManager::removeOutput(audio_io_handle_t output)
 {
     mOutputs.removeItem(output);
+    selectOutputForMusicEffects();
 }
 
-void AudioPolicyManager::addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc)
+void AudioPolicyManager::addInput(audio_io_handle_t input, const sp<AudioInputDescriptor>& inputDesc)
 {
     inputDesc->setIoHandle(input);
     mInputs.add(input, inputDesc);
     nextAudioPortGeneration();
 }
 
-void AudioPolicyManager::findIoHandlesByAddress(sp<SwAudioOutputDescriptor> desc /*in*/,
+void AudioPolicyManager::findIoHandlesByAddress(const sp<SwAudioOutputDescriptor>& desc /*in*/,
         const audio_devices_t device /*in*/,
-        const String8 address /*in*/,
+        const String8& address /*in*/,
         SortedVector<audio_io_handle_t>& outputs /*out*/) {
     sp<DeviceDescriptor> devDesc =
         desc->mProfile->getSupportedDeviceByAddress(device, address);
@@ -3666,10 +3934,10 @@
     }
 }
 
-status_t AudioPolicyManager::checkOutputsForDevice(const sp<DeviceDescriptor> devDesc,
+status_t AudioPolicyManager::checkOutputsForDevice(const sp<DeviceDescriptor>& devDesc,
                                                    audio_policy_dev_state_t state,
                                                    SortedVector<audio_io_handle_t>& outputs,
-                                                   const String8 address)
+                                                   const String8& address)
 {
     audio_devices_t device = devDesc->type();
     sp<SwAudioOutputDescriptor> desc;
@@ -3912,10 +4180,10 @@
     return NO_ERROR;
 }
 
-status_t AudioPolicyManager::checkInputsForDevice(const sp<DeviceDescriptor> devDesc,
+status_t AudioPolicyManager::checkInputsForDevice(const sp<DeviceDescriptor>& devDesc,
                                                   audio_policy_dev_state_t state,
                                                   SortedVector<audio_io_handle_t>& inputs,
-                                                  const String8 address)
+                                                  const String8& address)
 {
     audio_devices_t device = devDesc->type();
     sp<AudioInputDescriptor> desc;
@@ -4156,13 +4424,13 @@
 
 SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(
                                                                 audio_devices_t device,
-                                                                SwAudioOutputCollection openOutputs)
+                                                                const SwAudioOutputCollection& openOutputs)
 {
     SortedVector<audio_io_handle_t> outputs;
 
     ALOGVV("getOutputsForDevice() device %04x", device);
     for (size_t i = 0; i < openOutputs.size(); i++) {
-        ALOGVV("output %d isDuplicated=%d device=%04x",
+        ALOGVV("output %zu isDuplicated=%d device=%04x",
                 i, openOutputs.valueAt(i)->isDuplicated(),
                 openOutputs.valueAt(i)->supportedDevices());
         if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) {
@@ -4231,22 +4499,7 @@
 
         // Move effects associated to this strategy from previous output to new output
         if (strategy == STRATEGY_MEDIA) {
-            audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs);
-            SortedVector<audio_io_handle_t> moved;
-            for (size_t i = 0; i < mEffects.size(); i++) {
-                sp<EffectDescriptor> effectDesc = mEffects.valueAt(i);
-                if (effectDesc->mSession == AUDIO_SESSION_OUTPUT_MIX &&
-                        effectDesc->mIo != fxOutput) {
-                    if (moved.indexOf(effectDesc->mIo) < 0) {
-                        ALOGV("checkOutputForStrategy() moving effect %d to output %d",
-                              mEffects.keyAt(i), fxOutput);
-                        mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, effectDesc->mIo,
-                                                       fxOutput);
-                        moved.add(effectDesc->mIo);
-                    }
-                    effectDesc->mIo = fxOutput;
-                }
-            }
+            selectOutputForMusicEffects();
         }
         // Move tracks associated to this strategy from previous output to new output
         for (int i = 0; i < AUDIO_STREAM_FOR_POLICY_CNT; i++) {
@@ -4284,33 +4537,36 @@
             ((mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET &
                     ~AUDIO_DEVICE_BIT_IN) != 0) ||
             ((mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_ALL_SCO) != 0);
-    // suspend A2DP output if:
-    //      (NOT already suspended) &&
-    //      ((SCO device is connected &&
-    //       (forced usage for communication || for record is SCO))) ||
-    //      (phone state is ringing || in call)
+
+    // if suspended, restore A2DP output if:
+    //      ((SCO device is NOT connected) ||
+    //       ((forced usage communication is NOT SCO) && (forced usage for record is NOT SCO) &&
+    //        (phone state is NOT in call) && (phone state is NOT ringing)))
     //
-    // restore A2DP output if:
-    //      (Already suspended) &&
-    //      ((SCO device is NOT connected ||
-    //       (forced usage NOT for communication && NOT for record is SCO))) &&
-    //      (phone state is NOT ringing && NOT in call)
+    // if not suspended, suspend A2DP output if:
+    //      (SCO device is connected) &&
+    //       ((forced usage for communication is SCO) || (forced usage for record is SCO) ||
+    //       ((phone state is in call) || (phone state is ringing)))
     //
     if (mA2dpSuspended) {
-        if ((!isScoConnected ||
-             ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) != AUDIO_POLICY_FORCE_BT_SCO) &&
-              (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) != AUDIO_POLICY_FORCE_BT_SCO))) &&
-             ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) &&
+        if (!isScoConnected ||
+             ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) !=
+                     AUDIO_POLICY_FORCE_BT_SCO) &&
+              (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) !=
+                      AUDIO_POLICY_FORCE_BT_SCO) &&
+              (mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) &&
               (mEngine->getPhoneState() != AUDIO_MODE_RINGTONE))) {
 
             mpClientInterface->restoreOutput(a2dpOutput);
             mA2dpSuspended = false;
         }
     } else {
-        if ((isScoConnected &&
-             ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) == AUDIO_POLICY_FORCE_BT_SCO) ||
-              (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) == AUDIO_POLICY_FORCE_BT_SCO))) ||
-             ((mEngine->getPhoneState() == AUDIO_MODE_IN_CALL) ||
+        if (isScoConnected &&
+             ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) ==
+                     AUDIO_POLICY_FORCE_BT_SCO) ||
+              (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) ==
+                      AUDIO_POLICY_FORCE_BT_SCO) ||
+              (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL) ||
               (mEngine->getPhoneState() == AUDIO_MODE_RINGTONE))) {
 
             mpClientInterface->suspendOutput(a2dpOutput);
@@ -4381,9 +4637,9 @@
     return device;
 }
 
-audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input)
+audio_devices_t AudioPolicyManager::getNewInputDevice(const sp<AudioInputDescriptor>& inputDesc)
 {
-    sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input);
+    audio_devices_t device = AUDIO_DEVICE_NONE;
 
     ssize_t index = mAudioPatches.indexOfKey(inputDesc->getPatchHandle());
     if (index >= 0) {
@@ -4395,16 +4651,19 @@
         }
     }
 
-    audio_devices_t device = getDeviceAndMixForInputSource(inputDesc->inputSource());
+    audio_source_t source = inputDesc->getHighestPrioritySource(true /*activeOnly*/);
+    if (isInCall()) {
+        device = getDeviceAndMixForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION);
+    } else if (source != AUDIO_SOURCE_DEFAULT) {
+        device = getDeviceAndMixForInputSource(source);
+    }
 
     return device;
 }
 
 bool AudioPolicyManager::streamsMatchForvolume(audio_stream_type_t stream1,
                                                audio_stream_type_t stream2) {
-    return ((stream1 == stream2) ||
-            ((stream1 == AUDIO_STREAM_ACCESSIBILITY) && (stream2 == AUDIO_STREAM_MUSIC)) ||
-            ((stream1 == AUDIO_STREAM_MUSIC) && (stream2 == AUDIO_STREAM_ACCESSIBILITY)));
+    return (stream1 == stream2);
 }
 
 uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) {
@@ -4567,7 +4826,7 @@
     mPreviousOutputs = mOutputs;
 }
 
-uint32_t AudioPolicyManager::checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc,
+uint32_t AudioPolicyManager::checkDeviceMuteStrategies(const sp<AudioOutputDescriptor>& outputDesc,
                                                        audio_devices_t prevDevice,
                                                        uint32_t delayMs)
 {
@@ -4603,7 +4862,7 @@
                         == AUDIO_DEVICE_NONE) {
                     continue;
                 }
-                ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x)",
+                ALOGVV("checkDeviceMuteStrategies() %s strategy %zu (curDevice %04x)",
                       mute ? "muting" : "unmuting", i, curDevice);
                 setStrategyMute((routing_strategy)i, mute, desc, mute ? 0 : delayMs);
                 if (isStrategyActive(desc, (routing_strategy)i)) {
@@ -4889,7 +5148,7 @@
 }
 
 sp<IOProfile> AudioPolicyManager::getInputProfile(audio_devices_t device,
-                                                  String8 address,
+                                                  const String8& address,
                                                   uint32_t& samplingRate,
                                                   audio_format_t& format,
                                                   audio_channel_mask_t& channelMask,
@@ -4979,7 +5238,8 @@
     if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP |
             AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES |
             AUDIO_DEVICE_OUT_WIRED_HEADSET |
-            AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) &&
+            AUDIO_DEVICE_OUT_WIRED_HEADPHONE |
+            AUDIO_DEVICE_OUT_USB_HEADSET)) &&
         ((stream_strategy == STRATEGY_SONIFICATION)
                 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL)
                 || (stream == AUDIO_STREAM_SYSTEM)
@@ -5213,6 +5473,7 @@
     switch (attr->usage) {
     case AUDIO_USAGE_MEDIA:
     case AUDIO_USAGE_GAME:
+    case AUDIO_USAGE_ASSISTANT:
     case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:
         return AUDIO_STREAM_MUSIC;
     case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY:
@@ -5268,6 +5529,7 @@
     case AUDIO_USAGE_ASSISTANCE_SONIFICATION:
     case AUDIO_USAGE_GAME:
     case AUDIO_USAGE_VIRTUAL_SOURCE:
+    case AUDIO_USAGE_ASSISTANT:
         break;
     default:
         return false;
@@ -5275,7 +5537,7 @@
     return true;
 }
 
-bool AudioPolicyManager::isStrategyActive(const sp<AudioOutputDescriptor> outputDesc,
+bool AudioPolicyManager::isStrategyActive(const sp<AudioOutputDescriptor>& outputDesc,
                                           routing_strategy strategy, uint32_t inPastMs,
                                           nsecs_t sysTime) const
 {
@@ -5470,12 +5732,12 @@
 
     // Format MUST be checked first to update the list of AudioProfile
     if (profiles.hasDynamicFormat()) {
-        reply = mpClientInterface->getParameters(ioHandle,
-                                                 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS));
+        reply = mpClientInterface->getParameters(
+                ioHandle, String8(AudioParameter::keyStreamSupportedFormats));
         ALOGV("%s: supported formats %s", __FUNCTION__, reply.string());
         AudioParameter repliedParameters(reply);
         if (repliedParameters.get(
-                String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS), reply) != NO_ERROR) {
+                String8(AudioParameter::keyStreamSupportedFormats), reply) != NO_ERROR) {
             ALOGE("%s: failed to retrieve format, bailing out", __FUNCTION__);
             return;
         }
@@ -5492,27 +5754,28 @@
         ChannelsVector channelMasks;
         SampleRateVector samplingRates;
         AudioParameter requestedParameters;
-        requestedParameters.addInt(String8(AUDIO_PARAMETER_STREAM_FORMAT), format);
+        requestedParameters.addInt(String8(AudioParameter::keyFormat), format);
 
         if (profiles.hasDynamicRateFor(format)) {
-            reply = mpClientInterface->getParameters(ioHandle,
-                                                     requestedParameters.toString() + ";" +
-                                                     AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES);
+            reply = mpClientInterface->getParameters(
+                    ioHandle,
+                    requestedParameters.toString() + ";" +
+                    AudioParameter::keyStreamSupportedSamplingRates);
             ALOGV("%s: supported sampling rates %s", __FUNCTION__, reply.string());
             AudioParameter repliedParameters(reply);
             if (repliedParameters.get(
-                    String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES), reply) == NO_ERROR) {
+                    String8(AudioParameter::keyStreamSupportedSamplingRates), reply) == NO_ERROR) {
                 samplingRates = samplingRatesFromString(reply.string());
             }
         }
         if (profiles.hasDynamicChannelsFor(format)) {
             reply = mpClientInterface->getParameters(ioHandle,
                                                      requestedParameters.toString() + ";" +
-                                                     AUDIO_PARAMETER_STREAM_SUP_CHANNELS);
+                                                     AudioParameter::keyStreamSupportedChannels);
             ALOGV("%s: supported channel masks %s", __FUNCTION__, reply.string());
             AudioParameter repliedParameters(reply);
             if (repliedParameters.get(
-                    String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS), reply) == NO_ERROR) {
+                    String8(AudioParameter::keyStreamSupportedChannels), reply) == NO_ERROR) {
                 channelMasks = channelMasksFromString(reply.string());
                 if (device == AUDIO_DEVICE_OUT_HDMI) {
                     filterSurroundChannelMasks(&channelMasks);
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index 71bcd5f..c831d46 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -83,7 +83,7 @@
 {
 
 public:
-                AudioPolicyManager(AudioPolicyClientInterface *clientInterface);
+        explicit AudioPolicyManager(AudioPolicyClientInterface *clientInterface);
         virtual ~AudioPolicyManager();
 
         // AudioPolicyInterface
@@ -93,6 +93,9 @@
                                                           const char *device_name);
         virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
                                                                               const char *device_address);
+        virtual status_t handleDeviceConfigChange(audio_devices_t device,
+                                                  const char *device_address,
+                                                  const char *device_name);
         virtual void setPhoneState(audio_mode_t state);
         virtual void setForceUse(audio_policy_force_use_t usage,
                                  audio_policy_forced_cfg_t config);
@@ -111,12 +114,10 @@
                                           audio_session_t session,
                                           audio_stream_type_t *stream,
                                           uid_t uid,
-                                          uint32_t samplingRate,
-                                          audio_format_t format,
-                                          audio_channel_mask_t channelMask,
+                                          const audio_config_t *config,
                                           audio_output_flags_t flags,
                                           audio_port_handle_t selectedDeviceId,
-                                          const audio_offload_info_t *offloadInfo);
+                                          audio_port_handle_t *portId);
         virtual status_t startOutput(audio_io_handle_t output,
                                      audio_stream_type_t stream,
                                      audio_session_t session);
@@ -130,16 +131,16 @@
                                          audio_io_handle_t *input,
                                          audio_session_t session,
                                          uid_t uid,
-                                         uint32_t samplingRate,
-                                         audio_format_t format,
-                                         audio_channel_mask_t channelMask,
+                                         const audio_config_base_t *config,
                                          audio_input_flags_t flags,
                                          audio_port_handle_t selectedDeviceId,
-                                         input_type_t *inputType);
+                                         input_type_t *inputType,
+                                         audio_port_handle_t *portId);
 
         // indicates to the audio policy manager that the input starts being used.
         virtual status_t startInput(audio_io_handle_t input,
-                                    audio_session_t session);
+                                    audio_session_t session,
+                                    concurrency_type__mask_t *concurrency);
 
         // indicates to the audio policy manager that the input stops being used.
         virtual status_t stopInput(audio_io_handle_t input,
@@ -222,14 +223,14 @@
             return mSoundTriggerSessions.releaseSession(session);
         }
 
-        virtual status_t registerPolicyMixes(Vector<AudioMix> mixes);
+        virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes);
         virtual status_t unregisterPolicyMixes(Vector<AudioMix> mixes);
 
         virtual status_t startAudioSource(const struct audio_port_config *source,
                                           const audio_attributes_t *attributes,
-                                          audio_io_handle_t *handle,
+                                          audio_patch_handle_t *handle,
                                           uid_t uid);
-        virtual status_t stopAudioSource(audio_io_handle_t handle);
+        virtual status_t stopAudioSource(audio_patch_handle_t handle);
 
         virtual status_t setMasterMono(bool mono);
         virtual status_t getMasterMono(bool *mono);
@@ -273,9 +274,9 @@
             return mDefaultOutputDevice;
         }
 protected:
-        void addOutput(audio_io_handle_t output, sp<SwAudioOutputDescriptor> outputDesc);
+        void addOutput(audio_io_handle_t output, const sp<SwAudioOutputDescriptor>& outputDesc);
         void removeOutput(audio_io_handle_t output);
-        void addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc);
+        void addInput(audio_io_handle_t input, const sp<AudioInputDescriptor>& inputDesc);
 
         // return appropriate device for streams handled by the specified strategy according to current
         // phone state, connected devices...
@@ -291,7 +292,7 @@
         virtual audio_devices_t getDeviceForStrategy(routing_strategy strategy,
                                                      bool fromCache);
 
-        bool isStrategyActive(const sp<AudioOutputDescriptor> outputDesc, routing_strategy strategy,
+        bool isStrategyActive(const sp<AudioOutputDescriptor>& outputDesc, routing_strategy strategy,
                               uint32_t inPastMs = 0, nsecs_t sysTime = 0) const;
 
         // change the route of the specified output. Returns the number of ms we have slept to
@@ -362,15 +363,15 @@
         // when a device is disconnected, checks if an output is not used any more and
         // returns its handle if any.
         // transfers the audio tracks and effects from one output thread to another accordingly.
-        status_t checkOutputsForDevice(const sp<DeviceDescriptor> devDesc,
+        status_t checkOutputsForDevice(const sp<DeviceDescriptor>& devDesc,
                                        audio_policy_dev_state_t state,
                                        SortedVector<audio_io_handle_t>& outputs,
-                                       const String8 address);
+                                       const String8& address);
 
-        status_t checkInputsForDevice(const sp<DeviceDescriptor> devDesc,
+        status_t checkInputsForDevice(const sp<DeviceDescriptor>& devDesc,
                                       audio_policy_dev_state_t state,
                                       SortedVector<audio_io_handle_t>& inputs,
-                                      const String8 address);
+                                      const String8& address);
 
         // close an output and its companion duplicating output.
         void closeOutput(audio_io_handle_t output);
@@ -405,7 +406,7 @@
         void updateDevicesAndOutputs();
 
         // selects the most appropriate device on input for current state
-        audio_devices_t getNewInputDevice(audio_io_handle_t input);
+        audio_devices_t getNewInputDevice(const sp<AudioInputDescriptor>& inputDesc);
 
         virtual uint32_t getMaxEffectsCpuLoad()
         {
@@ -423,7 +424,7 @@
 #endif //AUDIO_POLICY_TEST
 
         SortedVector<audio_io_handle_t> getOutputsForDevice(audio_devices_t device,
-                                                            SwAudioOutputCollection openOutputs);
+                                                            const SwAudioOutputCollection& openOutputs);
         bool vectorsEqual(SortedVector<audio_io_handle_t>& outputs1,
                                            SortedVector<audio_io_handle_t>& outputs2);
 
@@ -431,7 +432,7 @@
         // if muting, wait for the audio in pcm buffer to be drained before proceeding
         // if unmuting, unmute only after the specified delay
         // Returns the number of ms waited
-        virtual uint32_t  checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc,
+        virtual uint32_t  checkDeviceMuteStrategies(const sp<AudioOutputDescriptor>& outputDesc,
                                             audio_devices_t prevDevice,
                                             uint32_t delayMs);
 
@@ -440,7 +441,7 @@
                                        audio_format_t format);
         // samplingRate, format, channelMask are in/out and so may be modified
         sp<IOProfile> getInputProfile(audio_devices_t device,
-                                      String8 address,
+                                      const String8& address,
                                       uint32_t& samplingRate,
                                       audio_format_t& format,
                                       audio_channel_mask_t& channelMask,
@@ -451,7 +452,7 @@
                                                        audio_channel_mask_t channelMask,
                                                        audio_output_flags_t flags);
 
-        audio_io_handle_t selectOutputForEffects(const SortedVector<audio_io_handle_t>& outputs);
+        audio_io_handle_t selectOutputForMusicEffects();
 
         virtual status_t addAudioPatch(audio_patch_handle_t handle, const sp<AudioPatch>& patch)
         {
@@ -481,12 +482,12 @@
 
         // if argument "device" is different from AUDIO_DEVICE_NONE,  startSource() will force
         // the re-evaluation of the output device.
-        status_t startSource(sp<AudioOutputDescriptor> outputDesc,
+        status_t startSource(const sp<AudioOutputDescriptor>& outputDesc,
                              audio_stream_type_t stream,
                              audio_devices_t device,
                              const char *address,
                              uint32_t *delayMs);
-        status_t stopSource(sp<AudioOutputDescriptor> outputDesc,
+        status_t stopSource(const sp<AudioOutputDescriptor>& outputDesc,
                             audio_stream_type_t stream,
                             bool forceDeviceUpdate);
 
@@ -506,6 +507,10 @@
 
         void clearAudioSources(uid_t uid);
 
+        static bool isConcurrentSource(audio_source_t source);
+
+        bool isConcurentCaptureAllowed(const sp<AudioInputDescriptor>& inputDesc,
+                const sp<AudioSession>& audioSession);
 
         static bool streamsMatchForvolume(audio_stream_type_t stream1,
                                           audio_stream_type_t stream2);
@@ -565,6 +570,8 @@
 
         bool mMasterMono;               // true if we wish to force all outputs to mono
         AudioPolicyMixCollection mPolicyMixes; // list of registered mixes
+        audio_io_handle_t mMusicEffectOutput;     // output selected for music effects
+
 
 #ifdef AUDIO_POLICY_TEST
         Mutex   mLock;
@@ -594,6 +601,15 @@
         void updateAudioProfiles(audio_devices_t device, audio_io_handle_t ioHandle,
                 AudioProfileVector &profiles);
 
+        // Notify the policy client of any change of device state with AUDIO_IO_HANDLE_NONE,
+        // so that the client interprets it as global to audio hardware interfaces.
+        // It can give a chance to HAL implementer to retrieve dynamic capabilities associated
+        // to this device for example.
+        // TODO avoid opening stream to retrieve capabilities of a profile.
+        void broadcastDeviceConnectionState(audio_devices_t device,
+                                            audio_policy_dev_state_t state,
+                                            const String8 &device_address);
+
         // updates device caching and output for streams that can influence the
         //    routing of notifications
         void handleNotificationRoutingForStream(audio_stream_type_t stream);
@@ -602,9 +618,9 @@
         //   in mProfile->mSupportedDevices) matches the device whose address is to be matched.
         // see deviceDistinguishesOnAddress(audio_devices_t) for whether the device type is one
         //   where addresses are used to distinguish between one connected device and another.
-        void findIoHandlesByAddress(sp<SwAudioOutputDescriptor> desc /*in*/,
+        void findIoHandlesByAddress(const sp<SwAudioOutputDescriptor>& desc /*in*/,
                 const audio_devices_t device /*in*/,
-                const String8 address /*in*/,
+                const String8& address /*in*/,
                 SortedVector<audio_io_handle_t>& outputs /*out*/);
         uint32_t curAudioPortGeneration() const { return mAudioPortGeneration; }
         // internal method to return the output handle for the given device and format
@@ -650,7 +666,7 @@
                                                           const char *device_name);
         void updateMono(audio_io_handle_t output) {
             AudioParameter param;
-            param.addInt(String8(AUDIO_PARAMETER_MONO_OUTPUT), (int)mMasterMono);
+            param.addInt(String8(AudioParameter::keyMonoOutput), (int)mMasterMono);
             mpClientInterface->setParameters(output, param.toString());
         }
 };
diff --git a/services/audiopolicy/service/AudioPolicyClientImplLegacy.cpp b/services/audiopolicy/service/AudioPolicyClientImplLegacy.cpp
deleted file mode 100644
index 151d066..0000000
--- a/services/audiopolicy/service/AudioPolicyClientImplLegacy.cpp
+++ /dev/null
@@ -1,317 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioPolicyService"
-//#define LOG_NDEBUG 0
-
-#include "Configuration.h"
-#undef __STRICT_ANSI__
-#define __STDINT_LIMITS
-#define __STDC_LIMIT_MACROS
-#include <stdint.h>
-
-#include <sys/time.h>
-#include <binder/IServiceManager.h>
-#include <utils/Log.h>
-#include <cutils/properties.h>
-#include <binder/IPCThreadState.h>
-#include <utils/String16.h>
-#include <utils/threads.h>
-#include "AudioPolicyService.h"
-#include "ServiceUtilities.h"
-#include <hardware_legacy/power.h>
-#include <media/AudioEffect.h>
-#include <media/EffectsFactoryApi.h>
-//#include <media/IAudioFlinger.h>
-
-#include <hardware/hardware.h>
-#include <system/audio.h>
-#include <system/audio_policy.h>
-#include <hardware/audio_policy.h>
-#include <audio_effects/audio_effects_conf.h>
-#include <media/AudioParameter.h>
-
-
-namespace android {
-
-/* implementation of the interface to the policy manager */
-extern "C" {
-
-audio_module_handle_t aps_load_hw_module(void *service __unused,
-                                             const char *name)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return 0;
-    }
-
-    return af->loadHwModule(name);
-}
-
-static audio_io_handle_t open_output(audio_module_handle_t module,
-                                    audio_devices_t *pDevices,
-                                    uint32_t *pSamplingRate,
-                                    audio_format_t *pFormat,
-                                    audio_channel_mask_t *pChannelMask,
-                                    uint32_t *pLatencyMs,
-                                    audio_output_flags_t flags,
-                                    const audio_offload_info_t *offloadInfo)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return AUDIO_IO_HANDLE_NONE;
-    }
-
-    if (pSamplingRate == NULL || pFormat == NULL || pChannelMask == NULL ||
-            pDevices == NULL || pLatencyMs == NULL) {
-        return AUDIO_IO_HANDLE_NONE;
-    }
-    audio_config_t config = AUDIO_CONFIG_INITIALIZER;
-    config.sample_rate = *pSamplingRate;
-    config.format = *pFormat;
-    config.channel_mask = *pChannelMask;
-    if (offloadInfo != NULL) {
-        config.offload_info = *offloadInfo;
-    }
-    audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
-    status_t status = af->openOutput(module, &output, &config, pDevices,
-                                     String8(""), pLatencyMs, flags);
-    if (status == NO_ERROR) {
-        *pSamplingRate = config.sample_rate;
-        *pFormat = config.format;
-        *pChannelMask = config.channel_mask;
-        if (offloadInfo != NULL) {
-            *((audio_offload_info_t *)offloadInfo) = config.offload_info;
-        }
-    }
-    return output;
-}
-
-// deprecated: replaced by aps_open_output_on_module()
-audio_io_handle_t aps_open_output(void *service __unused,
-                                         audio_devices_t *pDevices,
-                                         uint32_t *pSamplingRate,
-                                         audio_format_t *pFormat,
-                                         audio_channel_mask_t *pChannelMask,
-                                         uint32_t *pLatencyMs,
-                                         audio_output_flags_t flags)
-{
-    return open_output(AUDIO_MODULE_HANDLE_NONE, pDevices, pSamplingRate, pFormat, pChannelMask,
-                          pLatencyMs, flags, NULL);
-}
-
-audio_io_handle_t aps_open_output_on_module(void *service __unused,
-                                                   audio_module_handle_t module,
-                                                   audio_devices_t *pDevices,
-                                                   uint32_t *pSamplingRate,
-                                                   audio_format_t *pFormat,
-                                                   audio_channel_mask_t *pChannelMask,
-                                                   uint32_t *pLatencyMs,
-                                                   audio_output_flags_t flags,
-                                                   const audio_offload_info_t *offloadInfo)
-{
-    return open_output(module, pDevices, pSamplingRate, pFormat, pChannelMask,
-                          pLatencyMs, flags, offloadInfo);
-}
-
-audio_io_handle_t aps_open_dup_output(void *service __unused,
-                                                 audio_io_handle_t output1,
-                                                 audio_io_handle_t output2)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return 0;
-    }
-    return af->openDuplicateOutput(output1, output2);
-}
-
-int aps_close_output(void *service __unused, audio_io_handle_t output)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        return PERMISSION_DENIED;
-    }
-
-    return af->closeOutput(output);
-}
-
-int aps_suspend_output(void *service __unused, audio_io_handle_t output)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return PERMISSION_DENIED;
-    }
-
-    return af->suspendOutput(output);
-}
-
-int aps_restore_output(void *service __unused, audio_io_handle_t output)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return PERMISSION_DENIED;
-    }
-
-    return af->restoreOutput(output);
-}
-
-static audio_io_handle_t open_input(audio_module_handle_t module,
-                                    audio_devices_t *pDevices,
-                                    uint32_t *pSamplingRate,
-                                    audio_format_t *pFormat,
-                                    audio_channel_mask_t *pChannelMask)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return AUDIO_IO_HANDLE_NONE;
-    }
-
-    if (pSamplingRate == NULL || pFormat == NULL || pChannelMask == NULL || pDevices == NULL) {
-        return AUDIO_IO_HANDLE_NONE;
-    }
-
-    if (((*pDevices & AUDIO_DEVICE_IN_REMOTE_SUBMIX) == AUDIO_DEVICE_IN_REMOTE_SUBMIX)
-            && !captureAudioOutputAllowed(IPCThreadState::self()->getCallingPid(),
-                                          IPCThreadState::self()->getCallingUid())) {
-        ALOGE("open_input() permission denied: capture not allowed");
-        return AUDIO_IO_HANDLE_NONE;
-    }
-
-    audio_config_t config = AUDIO_CONFIG_INITIALIZER;;
-    config.sample_rate = *pSamplingRate;
-    config.format = *pFormat;
-    config.channel_mask = *pChannelMask;
-    audio_io_handle_t input = AUDIO_IO_HANDLE_NONE;
-    status_t status = af->openInput(module, &input, &config, pDevices,
-                                    String8(""), AUDIO_SOURCE_MIC, AUDIO_INPUT_FLAG_FAST /*FIXME*/);
-    if (status == NO_ERROR) {
-        *pSamplingRate = config.sample_rate;
-        *pFormat = config.format;
-        *pChannelMask = config.channel_mask;
-    }
-    return input;
-}
-
-
-// deprecated: replaced by aps_open_input_on_module(), and acoustics parameter is ignored
-audio_io_handle_t aps_open_input(void *service __unused,
-                                        audio_devices_t *pDevices,
-                                        uint32_t *pSamplingRate,
-                                        audio_format_t *pFormat,
-                                        audio_channel_mask_t *pChannelMask,
-                                        audio_in_acoustics_t acoustics __unused)
-{
-    return  open_input(AUDIO_MODULE_HANDLE_NONE, pDevices, pSamplingRate, pFormat, pChannelMask);
-}
-
-audio_io_handle_t aps_open_input_on_module(void *service __unused,
-                                                  audio_module_handle_t module,
-                                                  audio_devices_t *pDevices,
-                                                  uint32_t *pSamplingRate,
-                                                  audio_format_t *pFormat,
-                                                  audio_channel_mask_t *pChannelMask)
-{
-    return  open_input(module, pDevices, pSamplingRate, pFormat, pChannelMask);
-}
-
-int aps_close_input(void *service __unused, audio_io_handle_t input)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        return PERMISSION_DENIED;
-    }
-
-    return af->closeInput(input);
-}
-
-int aps_invalidate_stream(void *service __unused, audio_stream_type_t stream)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        return PERMISSION_DENIED;
-    }
-
-    return af->invalidateStream(stream);
-}
-
-int aps_move_effects(void *service __unused, audio_session_t session,
-                                audio_io_handle_t src_output,
-                                audio_io_handle_t dst_output)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        return PERMISSION_DENIED;
-    }
-
-    return af->moveEffects(session, src_output, dst_output);
-}
-
-char * aps_get_parameters(void *service __unused, audio_io_handle_t io_handle,
-                                     const char *keys)
-{
-    String8 result = AudioSystem::getParameters(io_handle, String8(keys));
-    return strdup(result.string());
-}
-
-void aps_set_parameters(void *service, audio_io_handle_t io_handle,
-                                   const char *kv_pairs, int delay_ms)
-{
-    AudioPolicyService *audioPolicyService = (AudioPolicyService *)service;
-
-    audioPolicyService->setParameters(io_handle, kv_pairs, delay_ms);
-}
-
-int aps_set_stream_volume(void *service, audio_stream_type_t stream,
-                                     float volume, audio_io_handle_t output,
-                                     int delay_ms)
-{
-    AudioPolicyService *audioPolicyService = (AudioPolicyService *)service;
-
-    return audioPolicyService->setStreamVolume(stream, volume, output,
-                                               delay_ms);
-}
-
-int aps_start_tone(void *service, audio_policy_tone_t tone,
-                              audio_stream_type_t stream)
-{
-    AudioPolicyService *audioPolicyService = (AudioPolicyService *)service;
-
-    return audioPolicyService->startTone(tone, stream);
-}
-
-int aps_stop_tone(void *service)
-{
-    AudioPolicyService *audioPolicyService = (AudioPolicyService *)service;
-
-    return audioPolicyService->stopTone();
-}
-
-int aps_set_voice_volume(void *service, float volume, int delay_ms)
-{
-    AudioPolicyService *audioPolicyService = (AudioPolicyService *)service;
-
-    return audioPolicyService->setVoiceVolume(volume, delay_ms);
-}
-
-}; // extern "C"
-
-}; // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyEffects.cpp b/services/audiopolicy/service/AudioPolicyEffects.cpp
index b732b20..654465d 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.cpp
+++ b/services/audiopolicy/service/AudioPolicyEffects.cpp
@@ -23,11 +23,11 @@
 #include <cutils/misc.h>
 #include <media/AudioEffect.h>
 #include <system/audio.h>
-#include <hardware/audio_effect.h>
-#include <audio_effects/audio_effects_conf.h>
+#include <system/audio_effects/audio_effects_conf.h>
 #include <utils/Vector.h>
 #include <utils/SortedVector.h>
 #include <cutils/config_utils.h>
+#include <binder/IPCThreadState.h>
 #include "AudioPolicyEffects.h"
 #include "ServiceUtilities.h"
 
@@ -57,11 +57,11 @@
     }
     mInputSources.clear();
 
-    for (i = 0; i < mInputs.size(); i++) {
-        mInputs.valueAt(i)->mEffects.clear();
-        delete mInputs.valueAt(i);
+    for (i = 0; i < mInputSessions.size(); i++) {
+        mInputSessions.valueAt(i)->mEffects.clear();
+        delete mInputSessions.valueAt(i);
     }
-    mInputs.clear();
+    mInputSessions.clear();
 
     // release audio output processing resources
     for (i = 0; i < mOutputStreams.size(); i++) {
@@ -93,19 +93,20 @@
         ALOGV("addInputEffects(): no processing needs to be attached to this source");
         return status;
     }
-    ssize_t idx = mInputs.indexOfKey(input);
-    EffectVector *inputDesc;
+    ssize_t idx = mInputSessions.indexOfKey(audioSession);
+    EffectVector *sessionDesc;
     if (idx < 0) {
-        inputDesc = new EffectVector(audioSession);
-        mInputs.add(input, inputDesc);
+        sessionDesc = new EffectVector(audioSession);
+        mInputSessions.add(audioSession, sessionDesc);
     } else {
         // EffectVector is existing and we just need to increase ref count
-        inputDesc = mInputs.valueAt(idx);
+        sessionDesc = mInputSessions.valueAt(idx);
     }
-    inputDesc->mRefCount++;
+    sessionDesc->mRefCount++;
 
-    ALOGV("addInputEffects(): input: %d, refCount: %d", input, inputDesc->mRefCount);
-    if (inputDesc->mRefCount == 1) {
+    ALOGV("addInputEffects(): input: %d, refCount: %d", input, sessionDesc->mRefCount);
+    if (sessionDesc->mRefCount == 1) {
+        int64_t token = IPCThreadState::self()->clearCallingIdentity();
         Vector <EffectDesc *> effects = mInputSources.valueAt(index)->mEffects;
         for (size_t i = 0; i < effects.size(); i++) {
             EffectDesc *effect = effects[i];
@@ -123,30 +124,32 @@
             }
             ALOGV("addInputEffects(): added Fx %s on source: %d",
                   effect->mName, (int32_t)aliasSource);
-            inputDesc->mEffects.add(fx);
+            sessionDesc->mEffects.add(fx);
         }
-        inputDesc->setProcessorEnabled(true);
+        sessionDesc->setProcessorEnabled(true);
+        IPCThreadState::self()->restoreCallingIdentity(token);
     }
     return status;
 }
 
 
-status_t AudioPolicyEffects::releaseInputEffects(audio_io_handle_t input)
+status_t AudioPolicyEffects::releaseInputEffects(audio_io_handle_t input,
+                                                 audio_session_t audioSession)
 {
     status_t status = NO_ERROR;
 
     Mutex::Autolock _l(mLock);
-    ssize_t index = mInputs.indexOfKey(input);
+    ssize_t index = mInputSessions.indexOfKey(audioSession);
     if (index < 0) {
         return status;
     }
-    EffectVector *inputDesc = mInputs.valueAt(index);
-    inputDesc->mRefCount--;
-    ALOGV("releaseInputEffects(): input: %d, refCount: %d", input, inputDesc->mRefCount);
-    if (inputDesc->mRefCount == 0) {
-        inputDesc->setProcessorEnabled(false);
-        delete inputDesc;
-        mInputs.removeItemsAt(index);
+    EffectVector *sessionDesc = mInputSessions.valueAt(index);
+    sessionDesc->mRefCount--;
+    ALOGV("releaseInputEffects(): input: %d, refCount: %d", input, sessionDesc->mRefCount);
+    if (sessionDesc->mRefCount == 0) {
+        sessionDesc->setProcessorEnabled(false);
+        delete sessionDesc;
+        mInputSessions.removeItemsAt(index);
         ALOGV("releaseInputEffects(): all effects released");
     }
     return status;
@@ -160,16 +163,16 @@
 
     Mutex::Autolock _l(mLock);
     size_t index;
-    for (index = 0; index < mInputs.size(); index++) {
-        if (mInputs.valueAt(index)->mSessionId == audioSession) {
+    for (index = 0; index < mInputSessions.size(); index++) {
+        if (mInputSessions.valueAt(index)->mSessionId == audioSession) {
             break;
         }
     }
-    if (index == mInputs.size()) {
+    if (index == mInputSessions.size()) {
         *count = 0;
         return BAD_VALUE;
     }
-    Vector< sp<AudioEffect> > effects = mInputs.valueAt(index)->mEffects;
+    Vector< sp<AudioEffect> > effects = mInputSessions.valueAt(index)->mEffects;
 
     for (size_t i = 0; i < effects.size(); i++) {
         effect_descriptor_t desc = effects[i]->descriptor();
@@ -251,6 +254,8 @@
     ALOGV("addOutputSessionEffects(): session: %d, refCount: %d",
           audioSession, procDesc->mRefCount);
     if (procDesc->mRefCount == 1) {
+        // make sure effects are associated to audio server even if we are executing a binder call
+        int64_t token = IPCThreadState::self()->clearCallingIdentity();
         Vector <EffectDesc *> effects = mOutputStreams.valueAt(index)->mEffects;
         for (size_t i = 0; i < effects.size(); i++) {
             EffectDesc *effect = effects[i];
@@ -269,6 +274,7 @@
         }
 
         procDesc->setProcessorEnabled(true);
+        IPCThreadState::self()->restoreCallingIdentity(token);
     }
     return status;
 }
diff --git a/services/audiopolicy/service/AudioPolicyEffects.h b/services/audiopolicy/service/AudioPolicyEffects.h
index ee9bd50..0c74d87 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.h
+++ b/services/audiopolicy/service/AudioPolicyEffects.h
@@ -23,7 +23,6 @@
 #include <cutils/misc.h>
 #include <media/AudioEffect.h>
 #include <system/audio.h>
-#include <hardware/audio_effect.h>
 #include <utils/Vector.h>
 #include <utils/SortedVector.h>
 
@@ -62,7 +61,8 @@
                              audio_session_t audioSession);
 
     // Add all input effects associated to this input
-    status_t releaseInputEffects(audio_io_handle_t input);
+    status_t releaseInputEffects(audio_io_handle_t input,
+                                 audio_session_t audioSession);
 
 
     // Return a list of effect descriptors for default output effects
@@ -135,7 +135,7 @@
     // class to store voctor of AudioEffects
     class EffectVector {
     public:
-        EffectVector(audio_session_t session) : mSessionId(session), mRefCount(0) {}
+        explicit EffectVector(audio_session_t session) : mSessionId(session), mRefCount(0) {}
         /*virtual*/ ~EffectVector() {}
 
         // Enable or disable all effects in effect vector
@@ -178,12 +178,12 @@
                          size_t *curSize,
                          size_t *totSize);
 
-    // protects access to mInputSources, mInputs, mOutputStreams, mOutputSessions
+    // protects access to mInputSources, mInputSessions, mOutputStreams, mOutputSessions
     Mutex mLock;
     // Automatic input effects are configured per audio_source_t
     KeyedVector< audio_source_t, EffectDescVector* > mInputSources;
     // Automatic input effects are unique for audio_io_handle_t
-    KeyedVector< audio_io_handle_t, EffectVector* > mInputs;
+    KeyedVector< audio_session_t, EffectVector* > mInputSessions;
 
     // Automatic output effects are organized per audio_stream_type_t
     KeyedVector< audio_stream_type_t, EffectDescVector* > mOutputStreams;
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
index a41ed95..2f7b1fb 100644
--- a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
@@ -37,9 +37,6 @@
     if (!settingsAllowed()) {
         return PERMISSION_DENIED;
     }
-    if (!audio_is_output_device(device) && !audio_is_input_device(device)) {
-        return BAD_VALUE;
-    }
     if (state != AUDIO_POLICY_DEVICE_STATE_AVAILABLE &&
             state != AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) {
         return BAD_VALUE;
@@ -62,6 +59,23 @@
                                                       device_address);
 }
 
+status_t AudioPolicyService::handleDeviceConfigChange(audio_devices_t device,
+                                                  const char *device_address,
+                                                  const char *device_name)
+{
+    if (mAudioPolicyManager == NULL) {
+        return NO_INIT;
+    }
+    if (!settingsAllowed()) {
+        return PERMISSION_DENIED;
+    }
+
+    ALOGV("handleDeviceConfigChange()");
+    Mutex::Autolock _l(mLock);
+    return mAudioPolicyManager->handleDeviceConfigChange(device, device_address,
+                                                         device_name);
+}
+
 status_t AudioPolicyService::setPhoneState(audio_mode_t state)
 {
     if (mAudioPolicyManager == NULL) {
@@ -151,12 +165,10 @@
                                               audio_session_t session,
                                               audio_stream_type_t *stream,
                                               uid_t uid,
-                                              uint32_t samplingRate,
-                                              audio_format_t format,
-                                              audio_channel_mask_t channelMask,
+                                              const audio_config_t *config,
                                               audio_output_flags_t flags,
                                               audio_port_handle_t selectedDeviceId,
-                                              const audio_offload_info_t *offloadInfo)
+                                              audio_port_handle_t *portId)
 {
     if (mAudioPolicyManager == NULL) {
         return NO_INIT;
@@ -170,8 +182,9 @@
                 "%s uid %d tried to pass itself off as %d", __FUNCTION__, callingUid, uid);
         uid = callingUid;
     }
-    return mAudioPolicyManager->getOutputForAttr(attr, output, session, stream, uid, samplingRate,
-                                    format, channelMask, flags, selectedDeviceId, offloadInfo);
+    return mAudioPolicyManager->getOutputForAttr(attr, output, session, stream, uid,
+                                                 config,
+                                                 flags, selectedDeviceId, portId);
 }
 
 status_t AudioPolicyService::startOutput(audio_io_handle_t output,
@@ -262,11 +275,10 @@
                                              audio_session_t session,
                                              pid_t pid,
                                              uid_t uid,
-                                             uint32_t samplingRate,
-                                             audio_format_t format,
-                                             audio_channel_mask_t channelMask,
+                                             const audio_config_base_t *config,
                                              audio_input_flags_t flags,
-                                             audio_port_handle_t selectedDeviceId)
+                                             audio_port_handle_t selectedDeviceId,
+                                             audio_port_handle_t *portId)
 {
     if (mAudioPolicyManager == NULL) {
         return NO_INIT;
@@ -305,9 +317,9 @@
         Mutex::Autolock _l(mLock);
         // the audio_in_acoustics_t parameter is ignored by get_input()
         status = mAudioPolicyManager->getInputForAttr(attr, input, session, uid,
-                                                     samplingRate, format, channelMask,
+                                                     config,
                                                      flags, selectedDeviceId,
-                                                     &inputType);
+                                                     &inputType, portId);
         audioPolicyEffects = mAudioPolicyEffects;
 
         if (status == NO_ERROR) {
@@ -361,8 +373,23 @@
         return NO_INIT;
     }
     Mutex::Autolock _l(mLock);
+    AudioPolicyInterface::concurrency_type__mask_t concurrency;
+    status_t status = mAudioPolicyManager->startInput(input, session, &concurrency);
 
-    return mAudioPolicyManager->startInput(input, session);
+    if (status == NO_ERROR) {
+        LOG_ALWAYS_FATAL_IF(concurrency & ~AudioPolicyInterface::API_INPUT_CONCURRENCY_ALL,
+                            "startInput(): invalid concurrency type %d", (int)concurrency);
+
+        // enforce permission (if any) required for each type of concurrency
+        if (concurrency & AudioPolicyInterface::API_INPUT_CONCURRENCY_CALL) {
+            //TODO: check incall capture permission
+        }
+        if (concurrency & AudioPolicyInterface::API_INPUT_CONCURRENCY_CAPTURE) {
+            //TODO: check concurrent capture permission
+        }
+    }
+
+    return status;
 }
 
 status_t AudioPolicyService::stopInput(audio_io_handle_t input,
@@ -389,7 +416,7 @@
     }
     if (audioPolicyEffects != 0) {
         // release audio processors from the input
-        status_t status = audioPolicyEffects->releaseInputEffects(input);
+        status_t status = audioPolicyEffects->releaseInputEffects(input, session);
         if(status != NO_ERROR) {
             ALOGW("Failed to release effects on input %d", input);
         }
@@ -569,7 +596,8 @@
         *count = 0;
         return NO_INIT;
     }
-    return audioPolicyEffects->queryDefaultInputEffects(audioSession, descriptors, count);
+    return audioPolicyEffects->queryDefaultInputEffects(
+            (audio_session_t)audioSession, descriptors, count);
 }
 
 bool AudioPolicyService::isOffloadSupported(const audio_offload_info_t& info)
@@ -683,7 +711,7 @@
     return mAudioPolicyManager->releaseSoundTriggerSession(session);
 }
 
-status_t AudioPolicyService::registerPolicyMixes(Vector<AudioMix> mixes, bool registration)
+status_t AudioPolicyService::registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration)
 {
     Mutex::Autolock _l(mLock);
     if(!modifyAudioRoutingAllowed()) {
@@ -701,7 +729,7 @@
 
 status_t AudioPolicyService::startAudioSource(const struct audio_port_config *source,
                                   const audio_attributes_t *attributes,
-                                  audio_io_handle_t *handle)
+                                  audio_patch_handle_t *handle)
 {
     Mutex::Autolock _l(mLock);
     if (mAudioPolicyManager == NULL) {
@@ -712,7 +740,7 @@
                                                  IPCThreadState::self()->getCallingUid());
 }
 
-status_t AudioPolicyService::stopAudioSource(audio_io_handle_t handle)
+status_t AudioPolicyService::stopAudioSource(audio_patch_handle_t handle)
 {
     Mutex::Autolock _l(mLock);
     if (mAudioPolicyManager == NULL) {
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImplLegacy.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImplLegacy.cpp
deleted file mode 100644
index 7c9315d..0000000
--- a/services/audiopolicy/service/AudioPolicyInterfaceImplLegacy.cpp
+++ /dev/null
@@ -1,633 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioPolicyService"
-//#define LOG_NDEBUG 0
-
-#include <utils/Log.h>
-#include "AudioPolicyService.h"
-#include "ServiceUtilities.h"
-
-#include <system/audio.h>
-#include <system/audio_policy.h>
-#include <hardware/audio_policy.h>
-#include <media/AudioPolicyHelper.h>
-
-namespace android {
-
-
-// ----------------------------------------------------------------------------
-
-status_t AudioPolicyService::setDeviceConnectionState(audio_devices_t device,
-                                                  audio_policy_dev_state_t state,
-                                                  const char *device_address,
-                                                  const char *device_name __unused)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (!settingsAllowed()) {
-        return PERMISSION_DENIED;
-    }
-    if (!audio_is_output_device(device) && !audio_is_input_device(device)) {
-        return BAD_VALUE;
-    }
-    if (state != AUDIO_POLICY_DEVICE_STATE_AVAILABLE &&
-            state != AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) {
-        return BAD_VALUE;
-    }
-
-    ALOGV("setDeviceConnectionState()");
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->set_device_connection_state(mpAudioPolicy, device,
-                                                      state, device_address);
-}
-
-audio_policy_dev_state_t AudioPolicyService::getDeviceConnectionState(
-                                                              audio_devices_t device,
-                                                              const char *device_address)
-{
-    if (mpAudioPolicy == NULL) {
-        return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
-    }
-    return mpAudioPolicy->get_device_connection_state(mpAudioPolicy, device,
-                                                      device_address);
-}
-
-status_t AudioPolicyService::setPhoneState(audio_mode_t state)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (!settingsAllowed()) {
-        return PERMISSION_DENIED;
-    }
-    if (uint32_t(state) >= AUDIO_MODE_CNT) {
-        return BAD_VALUE;
-    }
-
-    ALOGV("setPhoneState()");
-
-    // TODO: check if it is more appropriate to do it in platform specific policy manager
-    AudioSystem::setMode(state);
-
-    Mutex::Autolock _l(mLock);
-    mpAudioPolicy->set_phone_state(mpAudioPolicy, state);
-    mPhoneState = state;
-    return NO_ERROR;
-}
-
-audio_mode_t AudioPolicyService::getPhoneState()
-{
-    Mutex::Autolock _l(mLock);
-    return mPhoneState;
-}
-
-status_t AudioPolicyService::setForceUse(audio_policy_force_use_t usage,
-                                         audio_policy_forced_cfg_t config)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (!settingsAllowed()) {
-        return PERMISSION_DENIED;
-    }
-    if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) {
-        return BAD_VALUE;
-    }
-    if (config < 0 || config >= AUDIO_POLICY_FORCE_CFG_CNT) {
-        return BAD_VALUE;
-    }
-    ALOGV("setForceUse()");
-    Mutex::Autolock _l(mLock);
-    mpAudioPolicy->set_force_use(mpAudioPolicy, usage, config);
-    return NO_ERROR;
-}
-
-audio_policy_forced_cfg_t AudioPolicyService::getForceUse(audio_policy_force_use_t usage)
-{
-    if (mpAudioPolicy == NULL) {
-        return AUDIO_POLICY_FORCE_NONE;
-    }
-    if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) {
-        return AUDIO_POLICY_FORCE_NONE;
-    }
-    return mpAudioPolicy->get_force_use(mpAudioPolicy, usage);
-}
-
-audio_io_handle_t AudioPolicyService::getOutput(audio_stream_type_t stream,
-                                    uint32_t samplingRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    audio_output_flags_t flags,
-                                    const audio_offload_info_t *offloadInfo)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return AUDIO_IO_HANDLE_NONE;
-    }
-    if (mpAudioPolicy == NULL) {
-        return AUDIO_IO_HANDLE_NONE;
-    }
-    ALOGV("getOutput()");
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->get_output(mpAudioPolicy, stream, samplingRate,
-                                    format, channelMask, flags, offloadInfo);
-}
-
-status_t AudioPolicyService::startOutput(audio_io_handle_t output,
-                                         audio_stream_type_t stream,
-                                         audio_session_t session)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return BAD_VALUE;
-    }
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    ALOGV("startOutput()");
-    // create audio processors according to stream
-    sp<AudioPolicyEffects>audioPolicyEffects;
-    {
-        Mutex::Autolock _l(mLock);
-        audioPolicyEffects = mAudioPolicyEffects;
-    }
-    if (audioPolicyEffects != 0) {
-        status_t status = audioPolicyEffects->addOutputSessionEffects(output, stream, session);
-        if (status != NO_ERROR && status != ALREADY_EXISTS) {
-            ALOGW("Failed to add effects on session %d", session);
-        }
-    }
-
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->start_output(mpAudioPolicy, output, stream, session);
-}
-
-status_t AudioPolicyService::stopOutput(audio_io_handle_t output,
-                                        audio_stream_type_t stream,
-                                        audio_session_t session)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return BAD_VALUE;
-    }
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    ALOGV("stopOutput()");
-    mOutputCommandThread->stopOutputCommand(output, stream, session);
-    return NO_ERROR;
-}
-
-status_t  AudioPolicyService::doStopOutput(audio_io_handle_t output,
-                                      audio_stream_type_t stream,
-                                      audio_session_t session)
-{
-    ALOGV("doStopOutput from tid %d", gettid());
-    // release audio processors from the stream
-    sp<AudioPolicyEffects>audioPolicyEffects;
-    {
-        Mutex::Autolock _l(mLock);
-        audioPolicyEffects = mAudioPolicyEffects;
-    }
-    if (audioPolicyEffects != 0) {
-        status_t status = audioPolicyEffects->releaseOutputSessionEffects(output, stream, session);
-        if (status != NO_ERROR && status != ALREADY_EXISTS) {
-            ALOGW("Failed to release effects on session %d", session);
-        }
-    }
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->stop_output(mpAudioPolicy, output, stream, session);
-}
-
-void AudioPolicyService::releaseOutput(audio_io_handle_t output,
-                                       audio_stream_type_t stream,
-                                       audio_session_t session)
-{
-    if (mpAudioPolicy == NULL) {
-        return;
-    }
-    ALOGV("releaseOutput()");
-    mOutputCommandThread->releaseOutputCommand(output, stream, session);
-}
-
-void AudioPolicyService::doReleaseOutput(audio_io_handle_t output,
-                                         audio_stream_type_t stream __unused,
-                                         audio_session_t session __unused)
-{
-    ALOGV("doReleaseOutput from tid %d", gettid());
-    Mutex::Autolock _l(mLock);
-    mpAudioPolicy->release_output(mpAudioPolicy, output);
-}
-
-status_t AudioPolicyService::getInputForAttr(const audio_attributes_t *attr,
-                                             audio_io_handle_t *input,
-                                             audio_session_t session,
-                                             pid_t pid __unused,
-                                             uid_t uid __unused,
-                                             uint32_t samplingRate,
-                                             audio_format_t format,
-                                             audio_channel_mask_t channelMask,
-                                             audio_input_flags_t flags __unused,
-                                             audio_port_handle_t selectedDeviceId __unused)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-
-    audio_source_t inputSource = attr->source;
-
-    // already checked by client, but double-check in case the client wrapper is bypassed
-    if (inputSource >= AUDIO_SOURCE_CNT && inputSource != AUDIO_SOURCE_HOTWORD &&
-        inputSource != AUDIO_SOURCE_FM_TUNER) {
-        return BAD_VALUE;
-    }
-
-    if (inputSource == AUDIO_SOURCE_DEFAULT) {
-        inputSource = AUDIO_SOURCE_MIC;
-    }
-
-    if ((inputSource == AUDIO_SOURCE_HOTWORD) && !captureHotwordAllowed()) {
-        return BAD_VALUE;
-    }
-
-    sp<AudioPolicyEffects>audioPolicyEffects;
-    {
-        Mutex::Autolock _l(mLock);
-        // the audio_in_acoustics_t parameter is ignored by get_input()
-        *input = mpAudioPolicy->get_input(mpAudioPolicy, inputSource, samplingRate,
-                                             format, channelMask, (audio_in_acoustics_t) 0);
-        audioPolicyEffects = mAudioPolicyEffects;
-    }
-    if (*input == AUDIO_IO_HANDLE_NONE) {
-        return INVALID_OPERATION;
-    }
-
-    if (audioPolicyEffects != 0) {
-        // create audio pre processors according to input source
-        status_t status = audioPolicyEffects->addInputEffects(*input, inputSource, session);
-        if (status != NO_ERROR && status != ALREADY_EXISTS) {
-            ALOGW("Failed to add effects on input %d", input);
-        }
-    }
-    return NO_ERROR;
-}
-
-status_t AudioPolicyService::startInput(audio_io_handle_t input,
-                                        audio_session_t session __unused)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    Mutex::Autolock _l(mLock);
-
-    return mpAudioPolicy->start_input(mpAudioPolicy, input);
-}
-
-status_t AudioPolicyService::stopInput(audio_io_handle_t input,
-                                       audio_session_t session __unused)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    Mutex::Autolock _l(mLock);
-
-    return mpAudioPolicy->stop_input(mpAudioPolicy, input);
-}
-
-void AudioPolicyService::releaseInput(audio_io_handle_t input,
-                                      audio_session_t session __unused)
-{
-    if (mpAudioPolicy == NULL) {
-        return;
-    }
-
-    sp<AudioPolicyEffects>audioPolicyEffects;
-    {
-        Mutex::Autolock _l(mLock);
-        mpAudioPolicy->release_input(mpAudioPolicy, input);
-        audioPolicyEffects = mAudioPolicyEffects;
-    }
-    if (audioPolicyEffects != 0) {
-        // release audio processors from the input
-        status_t status = audioPolicyEffects->releaseInputEffects(input);
-        if(status != NO_ERROR) {
-            ALOGW("Failed to release effects on input %d", input);
-        }
-    }
-}
-
-status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream,
-                                            int indexMin,
-                                            int indexMax)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (!settingsAllowed()) {
-        return PERMISSION_DENIED;
-    }
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return BAD_VALUE;
-    }
-    Mutex::Autolock _l(mLock);
-    mpAudioPolicy->init_stream_volume(mpAudioPolicy, stream, indexMin, indexMax);
-    return NO_ERROR;
-}
-
-status_t AudioPolicyService::setStreamVolumeIndex(audio_stream_type_t stream,
-                                                  int index,
-                                                  audio_devices_t device)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (!settingsAllowed()) {
-        return PERMISSION_DENIED;
-    }
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return BAD_VALUE;
-    }
-    Mutex::Autolock _l(mLock);
-    if (mpAudioPolicy->set_stream_volume_index_for_device) {
-        return mpAudioPolicy->set_stream_volume_index_for_device(mpAudioPolicy,
-                                                                stream,
-                                                                index,
-                                                                device);
-    } else {
-        return mpAudioPolicy->set_stream_volume_index(mpAudioPolicy, stream, index);
-    }
-}
-
-status_t AudioPolicyService::getStreamVolumeIndex(audio_stream_type_t stream,
-                                                  int *index,
-                                                  audio_devices_t device)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return BAD_VALUE;
-    }
-    Mutex::Autolock _l(mLock);
-    if (mpAudioPolicy->get_stream_volume_index_for_device) {
-        return mpAudioPolicy->get_stream_volume_index_for_device(mpAudioPolicy,
-                                                                stream,
-                                                                index,
-                                                                device);
-    } else {
-        return mpAudioPolicy->get_stream_volume_index(mpAudioPolicy, stream, index);
-    }
-}
-
-uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return 0;
-    }
-    if (mpAudioPolicy == NULL) {
-        return 0;
-    }
-    return mpAudioPolicy->get_strategy_for_stream(mpAudioPolicy, stream);
-}
-
-//audio policy: use audio_device_t appropriately
-
-audio_devices_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return AUDIO_DEVICE_NONE;
-    }
-    if (mpAudioPolicy == NULL) {
-        return AUDIO_DEVICE_NONE;
-    }
-    return mpAudioPolicy->get_devices_for_stream(mpAudioPolicy, stream);
-}
-
-audio_io_handle_t AudioPolicyService::getOutputForEffect(const effect_descriptor_t *desc)
-{
-    // FIXME change return type to status_t, and return NO_INIT here
-    if (mpAudioPolicy == NULL) {
-        return 0;
-    }
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->get_output_for_effect(mpAudioPolicy, desc);
-}
-
-status_t AudioPolicyService::registerEffect(const effect_descriptor_t *desc,
-                                audio_io_handle_t io,
-                                uint32_t strategy,
-                                audio_session_t session,
-                                int id)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    return mpAudioPolicy->register_effect(mpAudioPolicy, desc, io, strategy, session, id);
-}
-
-status_t AudioPolicyService::unregisterEffect(int id)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    return mpAudioPolicy->unregister_effect(mpAudioPolicy, id);
-}
-
-status_t AudioPolicyService::setEffectEnabled(int id, bool enabled)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    return mpAudioPolicy->set_effect_enabled(mpAudioPolicy, id, enabled);
-}
-
-bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return false;
-    }
-    if (mpAudioPolicy == NULL) {
-        return false;
-    }
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs);
-}
-
-bool AudioPolicyService::isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return false;
-    }
-    if (mpAudioPolicy == NULL) {
-        return false;
-    }
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->is_stream_active_remotely(mpAudioPolicy, stream, inPastMs);
-}
-
-bool AudioPolicyService::isSourceActive(audio_source_t source) const
-{
-    if (mpAudioPolicy == NULL) {
-        return false;
-    }
-    if (mpAudioPolicy->is_source_active == 0) {
-        return false;
-    }
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->is_source_active(mpAudioPolicy, source);
-}
-
-status_t AudioPolicyService::queryDefaultPreProcessing(audio_session_t audioSession,
-                                                       effect_descriptor_t *descriptors,
-                                                       uint32_t *count)
-{
-    if (mpAudioPolicy == NULL) {
-        *count = 0;
-        return NO_INIT;
-    }
-    sp<AudioPolicyEffects>audioPolicyEffects;
-    {
-        Mutex::Autolock _l(mLock);
-        audioPolicyEffects = mAudioPolicyEffects;
-    }
-    if (audioPolicyEffects == 0) {
-        *count = 0;
-        return NO_INIT;
-    }
-    return audioPolicyEffects->queryDefaultInputEffects(audioSession, descriptors, count);
-}
-
-bool AudioPolicyService::isOffloadSupported(const audio_offload_info_t& info)
-{
-    if (mpAudioPolicy == NULL) {
-        ALOGV("mpAudioPolicy == NULL");
-        return false;
-    }
-
-    if (mpAudioPolicy->is_offload_supported == NULL) {
-        ALOGV("HAL does not implement is_offload_supported");
-        return false;
-    }
-
-    return mpAudioPolicy->is_offload_supported(mpAudioPolicy, &info);
-}
-
-status_t AudioPolicyService::listAudioPorts(audio_port_role_t role __unused,
-                                            audio_port_type_t type __unused,
-                                            unsigned int *num_ports,
-                                            struct audio_port *ports __unused,
-                                            unsigned int *generation __unused)
-{
-    *num_ports = 0;
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::getAudioPort(struct audio_port *port __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::createAudioPatch(const struct audio_patch *patch __unused,
-        audio_patch_handle_t *handle __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::releaseAudioPatch(audio_patch_handle_t handle __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::listAudioPatches(unsigned int *num_patches,
-        struct audio_patch *patches __unused,
-        unsigned int *generation __unused)
-{
-    *num_patches = 0;
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::setAudioPortConfig(const struct audio_port_config *config __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::getOutputForAttr(const audio_attributes_t *attr,
-                                              audio_io_handle_t *output,
-                                              audio_session_t session __unused,
-                                              audio_stream_type_t *stream,
-                                              uid_t uid __unused,
-                                              uint32_t samplingRate,
-                                              audio_format_t format,
-                                              audio_channel_mask_t channelMask,
-                                              audio_output_flags_t flags,
-                                              audio_port_handle_t selectedDeviceId __unused,
-                                              const audio_offload_info_t *offloadInfo)
-{
-    if (attr != NULL) {
-        *stream = audio_attributes_to_stream_type(attr);
-    } else {
-        if (*stream == AUDIO_STREAM_DEFAULT) {
-            return BAD_VALUE;
-        }
-    }
-    *output = getOutput(*stream, samplingRate, format, channelMask,
-                                          flags, offloadInfo);
-    if (*output == AUDIO_IO_HANDLE_NONE) {
-        return INVALID_OPERATION;
-    }
-    return NO_ERROR;
-}
-
-status_t AudioPolicyService::acquireSoundTriggerSession(audio_session_t *session __unused,
-                                       audio_io_handle_t *ioHandle __unused,
-                                       audio_devices_t *device __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::releaseSoundTriggerSession(audio_session_t session __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::registerPolicyMixes(Vector<AudioMix> mixes __unused,
-                                                 bool registration __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::startAudioSource(const struct audio_port_config *source,
-                                  const audio_attributes_t *attributes,
-                                  audio_io_handle_t *handle)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::stopAudioSource(audio_io_handle_t handle)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::setMasterMono(bool mono)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::getMasterMono(bool *mono)
-{
-    return INVALID_OPERATION;
-}
-
-}; // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index d24e9a0..c4f6367 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -34,13 +34,10 @@
 #include "ServiceUtilities.h"
 #include <hardware_legacy/power.h>
 #include <media/AudioEffect.h>
-#include <media/EffectsFactoryApi.h>
 #include <media/AudioParameter.h>
 
-#include <hardware/hardware.h>
 #include <system/audio.h>
 #include <system/audio_policy.h>
-#include <hardware/audio_policy.h>
 
 namespace android {
 
@@ -52,11 +49,6 @@
 
 static const nsecs_t kAudioCommandTimeoutNs = seconds(3); // 3 seconds
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-namespace {
-    extern struct audio_policy_service_ops aps_ops;
-};
-#endif
 
 // ----------------------------------------------------------------------------
 
@@ -78,40 +70,8 @@
         // start output activity command thread
         mOutputCommandThread = new AudioCommandThread(String8("ApmOutput"), this);
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-        ALOGI("AudioPolicyService CSTOR in legacy mode");
-
-        /* instantiate the audio policy manager */
-        const struct hw_module_t *module;
-        int rc = hw_get_module(AUDIO_POLICY_HARDWARE_MODULE_ID, &module);
-        if (rc) {
-            return;
-        }
-        rc = audio_policy_dev_open(module, &mpAudioPolicyDev);
-        ALOGE_IF(rc, "couldn't open audio policy device (%s)", strerror(-rc));
-        if (rc) {
-            return;
-        }
-
-        rc = mpAudioPolicyDev->create_audio_policy(mpAudioPolicyDev, &aps_ops, this,
-                                                   &mpAudioPolicy);
-        ALOGE_IF(rc, "couldn't create audio policy (%s)", strerror(-rc));
-        if (rc) {
-            return;
-        }
-
-        rc = mpAudioPolicy->init_check(mpAudioPolicy);
-        ALOGE_IF(rc, "couldn't init_check the audio policy (%s)", strerror(-rc));
-        if (rc) {
-            return;
-        }
-        ALOGI("Loaded audio policy from %s (%s)", module->name, module->id);
-#else
-        ALOGI("AudioPolicyService CSTOR in new mode");
-
         mAudioPolicyClient = new AudioPolicyClient(this);
         mAudioPolicyManager = createAudioPolicyManager(mAudioPolicyClient);
-#endif
     }
     // load audio processing modules
     sp<AudioPolicyEffects>audioPolicyEffects = new AudioPolicyEffects();
@@ -127,17 +87,8 @@
     mAudioCommandThread->exit();
     mOutputCommandThread->exit();
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-    if (mpAudioPolicy != NULL && mpAudioPolicyDev != NULL) {
-        mpAudioPolicyDev->destroy_audio_policy(mpAudioPolicyDev, mpAudioPolicy);
-    }
-    if (mpAudioPolicyDev != NULL) {
-        audio_policy_dev_close(mpAudioPolicyDev);
-    }
-#else
     destroyAudioPolicyManager(mAudioPolicyManager);
     delete mAudioPolicyClient;
-#endif
 
     mNotificationClients.clear();
     mAudioPolicyEffects.clear();
@@ -185,14 +136,12 @@
         Mutex::Autolock _l(mNotificationClientsLock);
         mNotificationClients.removeItem(uid);
     }
-#ifndef USE_LEGACY_AUDIO_POLICY
     {
         Mutex::Autolock _l(mLock);
         if (mAudioPolicyManager) {
             mAudioPolicyManager->releaseResourcesForUid(uid);
         }
     }
-#endif
 }
 
 void AudioPolicyService::onAudioPortListUpdate()
@@ -221,14 +170,14 @@
     }
 }
 
-void AudioPolicyService::onDynamicPolicyMixStateUpdate(String8 regId, int32_t state)
+void AudioPolicyService::onDynamicPolicyMixStateUpdate(const String8& regId, int32_t state)
 {
     ALOGV("AudioPolicyService::onDynamicPolicyMixStateUpdate(%s, %d)",
             regId.string(), state);
     mOutputCommandThread->dynamicPolicyMixStateUpdateCommand(regId, state);
 }
 
-void AudioPolicyService::doOnDynamicPolicyMixStateUpdate(String8 regId, int32_t state)
+void AudioPolicyService::doOnDynamicPolicyMixStateUpdate(const String8& regId, int32_t state)
 {
     Mutex::Autolock _l(mNotificationClientsLock);
     for (size_t i = 0; i < mNotificationClients.size(); i++) {
@@ -310,7 +259,7 @@
 }
 
 void AudioPolicyService::NotificationClient::onDynamicPolicyMixStateUpdate(
-        String8 regId, int32_t state)
+        const String8& regId, int32_t state)
 {
     if (mAudioPolicyServiceClient != 0) {
         mAudioPolicyServiceClient->onDynamicPolicyMixStateUpdate(regId, state);
@@ -358,11 +307,7 @@
     char buffer[SIZE];
     String8 result;
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-    snprintf(buffer, SIZE, "PolicyManager Interface: %p\n", mpAudioPolicy);
-#else
     snprintf(buffer, SIZE, "AudioPolicyManager: %p\n", mAudioPolicyManager);
-#endif
     result.append(buffer);
     snprintf(buffer, SIZE, "Command Thread: %p\n", mAudioCommandThread.get());
     result.append(buffer);
@@ -392,15 +337,9 @@
             mTonePlaybackThread->dump(fd);
         }
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-        if (mpAudioPolicy) {
-            mpAudioPolicy->dump(mpAudioPolicy, fd);
-        }
-#else
         if (mAudioPolicyManager) {
             mAudioPolicyManager->dump(fd);
         }
-#endif
 
         if (locked) mLock.unlock();
     }
@@ -857,7 +796,7 @@
 }
 
 void AudioPolicyService::AudioCommandThread::dynamicPolicyMixStateUpdateCommand(
-        String8 regId, int32_t state)
+        const String8& regId, int32_t state)
 {
     sp<AudioCommand> command = new AudioCommand();
     command->mCommand = DYN_POLICY_MIX_STATE_UPDATE;
@@ -1208,29 +1147,4 @@
 int aps_set_voice_volume(void *service, float volume, int delay_ms);
 };
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-namespace {
-    struct audio_policy_service_ops aps_ops = {
-        .open_output           = aps_open_output,
-        .open_duplicate_output = aps_open_dup_output,
-        .close_output          = aps_close_output,
-        .suspend_output        = aps_suspend_output,
-        .restore_output        = aps_restore_output,
-        .open_input            = aps_open_input,
-        .close_input           = aps_close_input,
-        .set_stream_volume     = aps_set_stream_volume,
-        .invalidate_stream     = aps_invalidate_stream,
-        .set_parameters        = aps_set_parameters,
-        .get_parameters        = aps_get_parameters,
-        .start_tone            = aps_start_tone,
-        .stop_tone             = aps_stop_tone,
-        .set_voice_volume      = aps_set_voice_volume,
-        .move_effects          = aps_move_effects,
-        .load_hw_module        = aps_load_hw_module,
-        .open_output_on_module = aps_open_output_on_module,
-        .open_input_on_module  = aps_open_input_on_module,
-    };
-}; // namespace <unnamed>
-#endif
-
 }; // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h
index 0b2cb35..9a083f4 100644
--- a/services/audiopolicy/service/AudioPolicyService.h
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -26,14 +26,10 @@
 #include <binder/BinderService.h>
 #include <system/audio.h>
 #include <system/audio_policy.h>
-#include <hardware/audio_policy.h>
 #include <media/IAudioPolicyService.h>
 #include <media/ToneGenerator.h>
 #include <media/AudioEffect.h>
 #include <media/AudioPolicy.h>
-#ifdef USE_LEGACY_AUDIO_POLICY
-#include <hardware_legacy/AudioPolicyInterface.h>
-#endif
 #include "AudioPolicyEffects.h"
 #include "managerdefault/AudioPolicyManager.h"
 
@@ -66,6 +62,9 @@
     virtual audio_policy_dev_state_t getDeviceConnectionState(
                                                                 audio_devices_t device,
                                                                 const char *device_address);
+    virtual status_t handleDeviceConfigChange(audio_devices_t device,
+                                              const char *device_address,
+                                              const char *device_name);
     virtual status_t setPhoneState(audio_mode_t state);
     virtual status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config);
     virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage);
@@ -81,12 +80,10 @@
                                       audio_session_t session,
                                       audio_stream_type_t *stream,
                                       uid_t uid,
-                                      uint32_t samplingRate = 0,
-                                      audio_format_t format = AUDIO_FORMAT_DEFAULT,
-                                      audio_channel_mask_t channelMask = 0,
-                                      audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                      audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
-                                      const audio_offload_info_t *offloadInfo = NULL);
+                                      const audio_config_t *config,
+                                      audio_output_flags_t flags,
+                                      audio_port_handle_t selectedDeviceId,
+                                      audio_port_handle_t *portId);
     virtual status_t startOutput(audio_io_handle_t output,
                                  audio_stream_type_t stream,
                                  audio_session_t session);
@@ -101,11 +98,10 @@
                                      audio_session_t session,
                                      pid_t pid,
                                      uid_t uid,
-                                     uint32_t samplingRate,
-                                     audio_format_t format,
-                                     audio_channel_mask_t channelMask,
+                                     const audio_config_base_t *config,
                                      audio_input_flags_t flags,
-                                     audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE);
+                                     audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
+                                     audio_port_handle_t *portId = NULL);
     virtual status_t startInput(audio_io_handle_t input,
                                 audio_session_t session);
     virtual status_t stopInput(audio_io_handle_t input,
@@ -196,12 +192,12 @@
 
     virtual audio_mode_t getPhoneState();
 
-    virtual status_t registerPolicyMixes(Vector<AudioMix> mixes, bool registration);
+    virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration);
 
     virtual status_t startAudioSource(const struct audio_port_config *source,
                                       const audio_attributes_t *attributes,
-                                      audio_io_handle_t *handle);
-    virtual status_t stopAudioSource(audio_io_handle_t handle);
+                                      audio_patch_handle_t *handle);
+    virtual status_t stopAudioSource(audio_patch_handle_t handle);
 
     virtual status_t setMasterMono(bool mono);
     virtual status_t getMasterMono(bool *mono);
@@ -227,8 +223,8 @@
             void onAudioPatchListUpdate();
             void doOnAudioPatchListUpdate();
 
-            void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
-            void doOnDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
+            void onDynamicPolicyMixStateUpdate(const String8& regId, int32_t state);
+            void doOnDynamicPolicyMixStateUpdate(const String8& regId, int32_t state);
             void onRecordingConfigurationUpdate(int event, audio_session_t session,
                     audio_source_t source, const audio_config_base_t *clientConfig,
                     const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle);
@@ -305,7 +301,7 @@
                     void        updateAudioPatchListCommand();
                     status_t    setAudioPortConfigCommand(const struct audio_port_config *config,
                                                           int delayMs);
-                    void        dynamicPolicyMixStateUpdateCommand(String8 regId, int32_t state);
+                    void        dynamicPolicyMixStateUpdateCommand(const String8& regId, int32_t state);
                     void        recordingConfigurationUpdateCommand(
                                                         int event, audio_session_t session,
                                                         audio_source_t source,
@@ -424,7 +420,7 @@
     class AudioPolicyClient : public AudioPolicyClientInterface
     {
      public:
-        AudioPolicyClient(AudioPolicyService *service) : mAudioPolicyService(service) {}
+        explicit AudioPolicyClient(AudioPolicyService *service) : mAudioPolicyService(service) {}
         virtual ~AudioPolicyClient() {}
 
         //
@@ -539,7 +535,7 @@
 
                             void      onAudioPortListUpdate();
                             void      onAudioPatchListUpdate();
-                            void      onDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
+                            void      onDynamicPolicyMixStateUpdate(const String8& regId, int32_t state);
                             void      onRecordingConfigurationUpdate(
                                         int event, audio_session_t session,
                                         audio_source_t source,
diff --git a/services/camera/libcameraservice/Android.mk b/services/camera/libcameraservice/Android.mk
index 8d7f71c..502ac5d 100644
--- a/services/camera/libcameraservice/Android.mk
+++ b/services/camera/libcameraservice/Android.mk
@@ -27,7 +27,7 @@
     CameraFlashlight.cpp \
     common/Camera2ClientBase.cpp \
     common/CameraDeviceBase.cpp \
-    common/CameraModule.cpp \
+    common/CameraProviderManager.cpp \
     common/FrameProcessorBase.cpp \
     api1/CameraClient.cpp \
     api1/Camera2Client.cpp \
@@ -40,19 +40,22 @@
     api1/client2/CaptureSequencer.cpp \
     api1/client2/ZslProcessor.cpp \
     api2/CameraDeviceClient.cpp \
+    device1/CameraHardwareInterface.cpp \
     device3/Camera3Device.cpp \
     device3/Camera3Stream.cpp \
     device3/Camera3IOStreamBase.cpp \
     device3/Camera3InputStream.cpp \
     device3/Camera3OutputStream.cpp \
-    device3/Camera3ZslStream.cpp \
     device3/Camera3DummyStream.cpp \
+    device3/Camera3SharedOutputStream.cpp \
     device3/StatusTracker.cpp \
     device3/Camera3BufferManager.cpp \
+    device3/Camera3StreamSplitter.cpp \
     gui/RingBufferConsumer.cpp \
     utils/CameraTraces.cpp \
     utils/AutoConditionLock.cpp \
-    utils/TagMonitor.cpp
+    utils/TagMonitor.cpp \
+    utils/LatencyHistogram.cpp
 
 LOCAL_SHARED_LIBRARIES:= \
     libui \
@@ -63,17 +66,25 @@
     libmedia \
     libmediautils \
     libcamera_client \
+    libcamera_metadata \
+    libfmq \
     libgui \
     libhardware \
-    libsync \
-    libcamera_metadata \
+    libhidlbase \
+    libhidltransport \
     libjpeg \
-    libmemunreachable
+    libmemunreachable \
+    android.hardware.camera.common@1.0 \
+    android.hardware.camera.provider@2.4 \
+    android.hardware.camera.device@1.0 \
+    android.hardware.camera.device@3.2 \
+    android.hidl.manager@1.0
+
+LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := libbinder libcamera_client libfmq
 
 LOCAL_C_INCLUDES += \
     system/media/private/camera/include \
-    frameworks/native/include/media/openmax \
-    external/jpeg
+    frameworks/native/include/media/openmax
 
 LOCAL_EXPORT_C_INCLUDE_DIRS := \
     frameworks/av/services/camera/libcameraservice
diff --git a/services/camera/libcameraservice/CameraFlashlight.cpp b/services/camera/libcameraservice/CameraFlashlight.cpp
index ad08a68..e06a81f 100644
--- a/services/camera/libcameraservice/CameraFlashlight.cpp
+++ b/services/camera/libcameraservice/CameraFlashlight.cpp
@@ -36,10 +36,11 @@
 // CameraFlashlight implementation begins
 // used by camera service to control flashflight.
 /////////////////////////////////////////////////////////////////////
-CameraFlashlight::CameraFlashlight(CameraModule& cameraModule,
-        const camera_module_callbacks_t& callbacks) :
-        mCameraModule(&cameraModule),
-        mCallbacks(&callbacks),
+
+CameraFlashlight::CameraFlashlight(sp<CameraProviderManager> providerManager,
+        camera_module_callbacks_t* callbacks) :
+        mProviderManager(providerManager),
+        mCallbacks(callbacks),
         mFlashlightMapInitialized(false) {
 }
 
@@ -53,45 +54,12 @@
         return INVALID_OPERATION;
     }
 
-    status_t res = OK;
-
-    if (mCameraModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_4) {
-        mFlashControl = new ModuleFlashControl(*mCameraModule, *mCallbacks);
-        if (mFlashControl == NULL) {
-            ALOGV("%s: cannot create flash control for module api v2.4+",
-                     __FUNCTION__);
-            return NO_MEMORY;
-        }
+    if (mProviderManager->supportSetTorchMode(cameraId.string())) {
+        mFlashControl = new ProviderFlashControl(mProviderManager);
     } else {
-        uint32_t deviceVersion = CAMERA_DEVICE_API_VERSION_1_0;
-
-        if (mCameraModule->getModuleApiVersion() >=
-                    CAMERA_MODULE_API_VERSION_2_0) {
-            camera_info info;
-            res = mCameraModule->getCameraInfo(
-                    atoi(String8(cameraId).string()), &info);
-            if (res) {
-                ALOGE("%s: failed to get camera info for camera %s",
-                        __FUNCTION__, cameraId.string());
-                return res;
-            }
-            deviceVersion = info.device_version;
-        }
-
-        if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_0) {
-            CameraDeviceClientFlashControl *flashControl =
-                    new CameraDeviceClientFlashControl(*mCameraModule,
-                                                       *mCallbacks);
-            if (!flashControl) {
-                return NO_MEMORY;
-            }
-
-            mFlashControl = flashControl;
-        } else {
-            mFlashControl =
-                    new CameraHardwareInterfaceFlashControl(*mCameraModule,
-                                                            *mCallbacks);
-        }
+        // Only HAL1 devices do not support setTorchMode
+        mFlashControl =
+                new CameraHardwareInterfaceFlashControl(mProviderManager, *mCallbacks);
     }
 
     return OK;
@@ -125,10 +93,6 @@
     }
 
     if (mFlashControl == NULL) {
-        if (enabled == false) {
-            return OK;
-        }
-
         res = createFlashlightControl(cameraId);
         if (res) {
             return res;
@@ -154,18 +118,32 @@
     return res;
 }
 
+int CameraFlashlight::getNumberOfCameras() {
+    return mProviderManager->getAPI1CompatibleCameraCount();
+}
+
 status_t CameraFlashlight::findFlashUnits() {
     Mutex::Autolock l(mLock);
     status_t res;
-    int32_t numCameras = mCameraModule->getNumberOfCameras();
 
-    mHasFlashlightMap.clear();
-    mFlashlightMapInitialized = false;
+    std::vector<String8> cameraIds;
+    int numberOfCameras = getNumberOfCameras();
+    cameraIds.resize(numberOfCameras);
+    // No module, must be provider
+    std::vector<std::string> ids = mProviderManager->getAPI1CompatibleCameraDeviceIds();
+    for (size_t i = 0; i < cameraIds.size(); i++) {
+        cameraIds[i] = String8(ids[i].c_str());
+    }
 
-    for (int32_t i = 0; i < numCameras; i++) {
+    mFlashControl.clear();
+
+    for (auto &id : cameraIds) {
+        ssize_t index = mHasFlashlightMap.indexOfKey(id);
+        if (0 <= index) {
+            continue;
+        }
+
         bool hasFlash = false;
-        String8 id = String8::format("%d", i);
-
         res = createFlashlightControl(id);
         if (res) {
             ALOGE("%s: failed to create flash control for %s", __FUNCTION__,
@@ -214,6 +192,15 @@
     return mHasFlashlightMap.valueAt(index);
 }
 
+bool CameraFlashlight::isBackwardCompatibleMode(const String8& cameraId) {
+    bool backwardCompatibleMode = false;
+    if (mProviderManager != nullptr &&
+            !mProviderManager->supportSetTorchMode(cameraId.string())) {
+        backwardCompatibleMode = true;
+    }
+    return backwardCompatibleMode;
+}
+
 status_t CameraFlashlight::prepareDeviceOpen(const String8& cameraId) {
     ALOGV("%s: prepare for device open", __FUNCTION__);
 
@@ -224,14 +211,14 @@
         return NO_INIT;
     }
 
-    if (mCameraModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_4) {
+    if (isBackwardCompatibleMode(cameraId)) {
         // framework is going to open a camera device, all flash light control
         // should be closed for backward compatible support.
         mFlashControl.clear();
 
         if (mOpenedCameraIds.size() == 0) {
             // notify torch unavailable for all cameras with a flash
-            int numCameras = mCameraModule->getNumberOfCameras();
+            int numCameras = getNumberOfCameras();
             for (int i = 0; i < numCameras; i++) {
                 if (hasFlashUnitLocked(String8::format("%d", i))) {
                     mCallbacks->torch_mode_status_change(mCallbacks,
@@ -274,9 +261,9 @@
     if (mOpenedCameraIds.size() != 0)
         return OK;
 
-    if (mCameraModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_4) {
+    if (isBackwardCompatibleMode(cameraId)) {
         // notify torch available for all cameras with a flash
-        int numCameras = mCameraModule->getNumberOfCameras();
+        int numCameras = getNumberOfCameras();
         for (int i = 0; i < numCameras; i++) {
             if (hasFlashUnitLocked(String8::format("%d", i))) {
                 mCallbacks->torch_mode_status_change(mCallbacks,
@@ -298,359 +285,40 @@
 // ModuleFlashControl implementation begins
 // Flash control for camera module v2.4 and above.
 /////////////////////////////////////////////////////////////////////
-ModuleFlashControl::ModuleFlashControl(CameraModule& cameraModule,
-        const camera_module_callbacks_t& callbacks) :
-        mCameraModule(&cameraModule) {
-    (void) callbacks;
+ProviderFlashControl::ProviderFlashControl(sp<CameraProviderManager> providerManager) :
+        mProviderManager(providerManager) {
 }
 
-ModuleFlashControl::~ModuleFlashControl() {
+ProviderFlashControl::~ProviderFlashControl() {
 }
 
-status_t ModuleFlashControl::hasFlashUnit(const String8& cameraId, bool *hasFlash) {
+status_t ProviderFlashControl::hasFlashUnit(const String8& cameraId, bool *hasFlash) {
     if (!hasFlash) {
         return BAD_VALUE;
     }
-
-    *hasFlash = false;
-    Mutex::Autolock l(mLock);
-
-    camera_info info;
-    status_t res = mCameraModule->getCameraInfo(atoi(cameraId.string()),
-            &info);
-    if (res != 0) {
-        return res;
-    }
-
-    CameraMetadata metadata;
-    metadata = info.static_camera_characteristics;
-    camera_metadata_entry flashAvailable =
-            metadata.find(ANDROID_FLASH_INFO_AVAILABLE);
-    if (flashAvailable.count == 1 && flashAvailable.data.u8[0] == 1) {
-        *hasFlash = true;
-    }
-
+    *hasFlash = mProviderManager->hasFlashUnit(cameraId.string());
     return OK;
 }
 
-status_t ModuleFlashControl::setTorchMode(const String8& cameraId, bool enabled) {
+status_t ProviderFlashControl::setTorchMode(const String8& cameraId, bool enabled) {
     ALOGV("%s: set camera %s torch mode to %d", __FUNCTION__,
             cameraId.string(), enabled);
 
-    Mutex::Autolock l(mLock);
-    return mCameraModule->setTorchMode(cameraId.string(), enabled);
+    return mProviderManager->setTorchMode(cameraId.string(), enabled);
 }
-// ModuleFlashControl implementation ends
-
-/////////////////////////////////////////////////////////////////////
-// CameraDeviceClientFlashControl implementation begins
-// Flash control for camera module <= v2.3 and camera HAL v2-v3
-/////////////////////////////////////////////////////////////////////
-CameraDeviceClientFlashControl::CameraDeviceClientFlashControl(
-        CameraModule& cameraModule,
-        const camera_module_callbacks_t& callbacks) :
-        mCameraModule(&cameraModule),
-        mCallbacks(&callbacks),
-        mTorchEnabled(false),
-        mMetadata(NULL),
-        mStreaming(false) {
-}
-
-CameraDeviceClientFlashControl::~CameraDeviceClientFlashControl() {
-    disconnectCameraDevice();
-    if (mMetadata) {
-        delete mMetadata;
-    }
-
-    mSurface.clear();
-    mSurfaceTexture.clear();
-    mProducer.clear();
-    mConsumer.clear();
-
-    if (mTorchEnabled) {
-        if (mCallbacks) {
-            ALOGV("%s: notify the framework that torch was turned off",
-                    __FUNCTION__);
-            mCallbacks->torch_mode_status_change(mCallbacks,
-                    mCameraId.string(), TORCH_MODE_STATUS_AVAILABLE_OFF);
-        }
-    }
-}
-
-status_t CameraDeviceClientFlashControl::initializeSurface(
-        sp<CameraDeviceBase> &device, int32_t width, int32_t height) {
-    status_t res;
-    BufferQueue::createBufferQueue(&mProducer, &mConsumer);
-
-    mSurfaceTexture = new GLConsumer(mConsumer, 0, GLConsumer::TEXTURE_EXTERNAL,
-            true, true);
-    if (mSurfaceTexture == NULL) {
-        return NO_MEMORY;
-    }
-
-    int32_t format = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
-    res = mSurfaceTexture->setDefaultBufferSize(width, height);
-    if (res) {
-        return res;
-    }
-    res = mSurfaceTexture->setDefaultBufferFormat(format);
-    if (res) {
-        return res;
-    }
-
-    mSurface = new Surface(mProducer, /*useAsync*/ true);
-    if (mSurface == NULL) {
-        return NO_MEMORY;
-    }
-    res = device->createStream(mSurface, width, height, format,
-            HAL_DATASPACE_UNKNOWN, CAMERA3_STREAM_ROTATION_0, &mStreamId);
-    if (res) {
-        return res;
-    }
-
-    res = device->configureStreams();
-    if (res) {
-        return res;
-    }
-
-    return res;
-}
-
-status_t CameraDeviceClientFlashControl::getSmallestSurfaceSize(
-        const camera_info& info, int32_t *width, int32_t *height) {
-    if (!width || !height) {
-        return BAD_VALUE;
-    }
-
-    int32_t w = INT32_MAX;
-    int32_t h = 1;
-
-    CameraMetadata metadata;
-    metadata = info.static_camera_characteristics;
-    camera_metadata_entry streamConfigs =
-            metadata.find(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS);
-    for (size_t i = 0; i < streamConfigs.count; i += 4) {
-        int32_t fmt = streamConfigs.data.i32[i];
-        if (fmt == ANDROID_SCALER_AVAILABLE_FORMATS_IMPLEMENTATION_DEFINED) {
-            int32_t ww = streamConfigs.data.i32[i + 1];
-            int32_t hh = streamConfigs.data.i32[i + 2];
-
-            if (w * h > ww * hh) {
-                w = ww;
-                h = hh;
-            }
-        }
-    }
-
-    // if stream configuration is not found, try available processed sizes.
-    if (streamConfigs.count == 0) {
-        camera_metadata_entry availableProcessedSizes =
-            metadata.find(ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES);
-        for (size_t i = 0; i < availableProcessedSizes.count; i += 2) {
-            int32_t ww = availableProcessedSizes.data.i32[i];
-            int32_t hh = availableProcessedSizes.data.i32[i + 1];
-            if (w * h > ww * hh) {
-                w = ww;
-                h = hh;
-            }
-        }
-    }
-
-    if (w == INT32_MAX) {
-        return NAME_NOT_FOUND;
-    }
-
-    *width = w;
-    *height = h;
-
-    return OK;
-}
-
-status_t CameraDeviceClientFlashControl::connectCameraDevice(
-        const String8& cameraId) {
-    camera_info info;
-    status_t res = mCameraModule->getCameraInfo(atoi(cameraId.string()), &info);
-    if (res != 0) {
-        ALOGE("%s: failed to get camera info for camera %s", __FUNCTION__,
-                cameraId.string());
-        return res;
-    }
-
-    sp<CameraDeviceBase> device =
-            new Camera3Device(atoi(cameraId.string()));
-    if (device == NULL) {
-        return NO_MEMORY;
-    }
-
-    res = device->initialize(mCameraModule);
-    if (res) {
-        return res;
-    }
-
-    int32_t width, height;
-    res = getSmallestSurfaceSize(info, &width, &height);
-    if (res) {
-        return res;
-    }
-    res = initializeSurface(device, width, height);
-    if (res) {
-        return res;
-    }
-
-    mCameraId = cameraId;
-    mStreaming = (info.device_version <= CAMERA_DEVICE_API_VERSION_3_1);
-    mDevice = device;
-
-    return OK;
-}
-
-status_t CameraDeviceClientFlashControl::disconnectCameraDevice() {
-    if (mDevice != NULL) {
-        mDevice->disconnect();
-        mDevice.clear();
-    }
-
-    return OK;
-}
-
-
-
-status_t CameraDeviceClientFlashControl::hasFlashUnit(const String8& cameraId,
-        bool *hasFlash) {
-    ALOGV("%s: checking if camera %s has a flash unit", __FUNCTION__,
-            cameraId.string());
-
-    Mutex::Autolock l(mLock);
-    return hasFlashUnitLocked(cameraId, hasFlash);
-
-}
-
-status_t CameraDeviceClientFlashControl::hasFlashUnitLocked(
-        const String8& cameraId, bool *hasFlash) {
-    if (!hasFlash) {
-        return BAD_VALUE;
-    }
-
-    camera_info info;
-    status_t res = mCameraModule->getCameraInfo(
-            atoi(cameraId.string()), &info);
-    if (res != 0) {
-        ALOGE("%s: failed to get camera info for camera %s", __FUNCTION__,
-                cameraId.string());
-        return res;
-    }
-
-    CameraMetadata metadata;
-    metadata = info.static_camera_characteristics;
-    camera_metadata_entry flashAvailable =
-            metadata.find(ANDROID_FLASH_INFO_AVAILABLE);
-    if (flashAvailable.count == 1 && flashAvailable.data.u8[0] == 1) {
-        *hasFlash = true;
-    }
-
-    return OK;
-}
-
-status_t CameraDeviceClientFlashControl::submitTorchEnabledRequest() {
-    status_t res;
-
-    if (mMetadata == NULL) {
-        mMetadata = new CameraMetadata();
-        if (mMetadata == NULL) {
-            return NO_MEMORY;
-        }
-        res = mDevice->createDefaultRequest(
-                CAMERA3_TEMPLATE_PREVIEW, mMetadata);
-        if (res) {
-            return res;
-        }
-    }
-
-    uint8_t torchOn = ANDROID_FLASH_MODE_TORCH;
-    mMetadata->update(ANDROID_FLASH_MODE, &torchOn, 1);
-    mMetadata->update(ANDROID_REQUEST_OUTPUT_STREAMS, &mStreamId, 1);
-
-    uint8_t aeMode = ANDROID_CONTROL_AE_MODE_ON;
-    mMetadata->update(ANDROID_CONTROL_AE_MODE, &aeMode, 1);
-
-    int32_t requestId = 0;
-    mMetadata->update(ANDROID_REQUEST_ID, &requestId, 1);
-
-    if (mStreaming) {
-        res = mDevice->setStreamingRequest(*mMetadata);
-    } else {
-        res = mDevice->capture(*mMetadata);
-    }
-    return res;
-}
-
-
-
-
-status_t CameraDeviceClientFlashControl::setTorchMode(
-        const String8& cameraId, bool enabled) {
-    bool hasFlash = false;
-
-    Mutex::Autolock l(mLock);
-    status_t res = hasFlashUnitLocked(cameraId, &hasFlash);
-
-    // pre-check
-    if (enabled) {
-        // invalid camera?
-        if (res) {
-            return -EINVAL;
-        }
-        // no flash unit?
-        if (!hasFlash) {
-            return -ENOSYS;
-        }
-        // already opened for a different device?
-        if (mDevice != NULL && cameraId != mCameraId) {
-            return BAD_INDEX;
-        }
-    } else if (mDevice == NULL || cameraId != mCameraId) {
-        // disabling the torch mode of an un-opened or different device.
-        return OK;
-    } else {
-        // disabling the torch mode of currently opened device
-        disconnectCameraDevice();
-        mTorchEnabled = false;
-        mCallbacks->torch_mode_status_change(mCallbacks,
-            cameraId.string(), TORCH_MODE_STATUS_AVAILABLE_OFF);
-        return OK;
-    }
-
-    if (mDevice == NULL) {
-        res = connectCameraDevice(cameraId);
-        if (res) {
-            return res;
-        }
-    }
-
-    res = submitTorchEnabledRequest();
-    if (res) {
-        return res;
-    }
-
-    mTorchEnabled = true;
-    mCallbacks->torch_mode_status_change(mCallbacks,
-            cameraId.string(), TORCH_MODE_STATUS_AVAILABLE_ON);
-    return OK;
-}
-// CameraDeviceClientFlashControl implementation ends
-
+// ProviderFlashControl implementation ends
 
 /////////////////////////////////////////////////////////////////////
 // CameraHardwareInterfaceFlashControl implementation begins
 // Flash control for camera module <= v2.3 and camera HAL v1
 /////////////////////////////////////////////////////////////////////
+
 CameraHardwareInterfaceFlashControl::CameraHardwareInterfaceFlashControl(
-        CameraModule& cameraModule,
+        sp<CameraProviderManager> manager,
         const camera_module_callbacks_t& callbacks) :
-        mCameraModule(&cameraModule),
+        mProviderManager(manager),
         mCallbacks(&callbacks),
         mTorchEnabled(false) {
-
 }
 
 CameraHardwareInterfaceFlashControl::~CameraHardwareInterfaceFlashControl() {
@@ -812,7 +480,7 @@
 }
 
 status_t CameraHardwareInterfaceFlashControl::initializePreviewWindow(
-        sp<CameraHardwareInterface> device, int32_t width, int32_t height) {
+        const sp<CameraHardwareInterface>& device, int32_t width, int32_t height) {
     status_t res;
     BufferQueue::createBufferQueue(&mProducer, &mConsumer);
 
@@ -851,7 +519,7 @@
     sp<CameraHardwareInterface> device =
             new CameraHardwareInterface(cameraId.string());
 
-    status_t res = device->initialize(mCameraModule);
+    status_t res = device->initialize(mProviderManager);
     if (res) {
         ALOGE("%s: initializing camera %s failed", __FUNCTION__,
                 cameraId.string());
@@ -859,7 +527,7 @@
     }
 
     // need to set __get_memory in set_callbacks().
-    device->setCallbacks(NULL, NULL, NULL, NULL);
+    device->setCallbacks(NULL, NULL, NULL, NULL, NULL);
 
     mParameters = device->getParameters();
 
diff --git a/services/camera/libcameraservice/CameraFlashlight.h b/services/camera/libcameraservice/CameraFlashlight.h
index 5cde372..c86ee85 100644
--- a/services/camera/libcameraservice/CameraFlashlight.h
+++ b/services/camera/libcameraservice/CameraFlashlight.h
@@ -17,14 +17,16 @@
 #ifndef ANDROID_SERVERS_CAMERA_CAMERAFLASHLIGHT_H
 #define ANDROID_SERVERS_CAMERA_CAMERAFLASHLIGHT_H
 
-#include "hardware/camera_common.h"
-#include "utils/KeyedVector.h"
-#include "utils/SortedVector.h"
-#include "gui/GLConsumer.h"
-#include "gui/Surface.h"
+#include <gui/GLConsumer.h>
+#include <gui/Surface.h>
+#include <hardware/camera_common.h>
+#include <utils/KeyedVector.h>
+#include <utils/SortedVector.h>
+#include "common/CameraProviderManager.h"
 #include "common/CameraDeviceBase.h"
 #include "device1/CameraHardwareInterface.h"
 
+
 namespace android {
 
 /**
@@ -52,8 +54,8 @@
  */
 class CameraFlashlight : public virtual VirtualLightRefBase {
     public:
-        CameraFlashlight(CameraModule& cameraModule,
-                const camera_module_callbacks_t& callbacks);
+        CameraFlashlight(sp<CameraProviderManager> providerManager,
+                camera_module_callbacks_t* callbacks);
         virtual ~CameraFlashlight();
 
         // Find all flash units. This must be called before other methods. All
@@ -87,8 +89,16 @@
         // mLock should be locked.
         bool hasFlashUnitLocked(const String8& cameraId);
 
+        // Check if flash control is in backward compatible mode (simulated torch API by
+        // opening cameras)
+        bool isBackwardCompatibleMode(const String8& cameraId);
+
+        int getNumberOfCameras();
+
         sp<FlashControlBase> mFlashControl;
-        CameraModule *mCameraModule;
+
+        sp<CameraProviderManager> mProviderManager;
+
         const camera_module_callbacks_t *mCallbacks;
         SortedVector<String8> mOpenedCameraIds;
 
@@ -100,74 +110,19 @@
 };
 
 /**
- * Flash control for camera module v2.4 and above.
+ * Flash control for camera provider v2.4 and above.
  */
-class ModuleFlashControl : public FlashControlBase {
+class ProviderFlashControl : public FlashControlBase {
     public:
-        ModuleFlashControl(CameraModule& cameraModule,
-                const camera_module_callbacks_t& callbacks);
-        virtual ~ModuleFlashControl();
+        ProviderFlashControl(sp<CameraProviderManager> providerManager);
+        virtual ~ProviderFlashControl();
 
         // FlashControlBase
         status_t hasFlashUnit(const String8& cameraId, bool *hasFlash);
         status_t setTorchMode(const String8& cameraId, bool enabled);
 
     private:
-        CameraModule *mCameraModule;
-
-        Mutex mLock;
-};
-
-/**
- * Flash control for camera module <= v2.3 and camera HAL v2-v3
- */
-class CameraDeviceClientFlashControl : public FlashControlBase {
-    public:
-        CameraDeviceClientFlashControl(CameraModule& cameraModule,
-                const camera_module_callbacks_t& callbacks);
-        virtual ~CameraDeviceClientFlashControl();
-
-        // FlashControlBase
-        status_t setTorchMode(const String8& cameraId, bool enabled);
-        status_t hasFlashUnit(const String8& cameraId, bool *hasFlash);
-
-    private:
-        // connect to a camera device
-        status_t connectCameraDevice(const String8& cameraId);
-        // disconnect and free mDevice
-        status_t disconnectCameraDevice();
-
-        // initialize a surface
-        status_t initializeSurface(sp<CameraDeviceBase>& device, int32_t width,
-                int32_t height);
-
-        // submit a request to enable the torch mode
-        status_t submitTorchEnabledRequest();
-
-        // get the smallest surface size of IMPLEMENTATION_DEFINED
-        status_t getSmallestSurfaceSize(const camera_info& info, int32_t *width,
-                    int32_t *height);
-
-        // protected by mLock
-        status_t hasFlashUnitLocked(const String8& cameraId, bool *hasFlash);
-
-        CameraModule *mCameraModule;
-        const camera_module_callbacks_t *mCallbacks;
-        String8 mCameraId;
-        bool mTorchEnabled;
-        CameraMetadata *mMetadata;
-        // WORKAROUND: will be set to true for HAL v2 devices where
-        // setStreamingRequest() needs to be call for torch mode settings to
-        // take effect.
-        bool mStreaming;
-
-        sp<CameraDeviceBase> mDevice;
-
-        sp<IGraphicBufferProducer> mProducer;
-        sp<IGraphicBufferConsumer>  mConsumer;
-        sp<GLConsumer> mSurfaceTexture;
-        sp<Surface> mSurface;
-        int32_t mStreamId;
+        sp<CameraProviderManager> mProviderManager;
 
         Mutex mLock;
 };
@@ -177,7 +132,8 @@
  */
 class CameraHardwareInterfaceFlashControl : public FlashControlBase {
     public:
-        CameraHardwareInterfaceFlashControl(CameraModule& cameraModule,
+        CameraHardwareInterfaceFlashControl(
+                sp<CameraProviderManager> manager,
                 const camera_module_callbacks_t& callbacks);
         virtual ~CameraHardwareInterfaceFlashControl();
 
@@ -193,7 +149,7 @@
         status_t disconnectCameraDevice();
 
         // initialize the preview window
-        status_t initializePreviewWindow(sp<CameraHardwareInterface> device,
+        status_t initializePreviewWindow(const sp<CameraHardwareInterface>& device,
                 int32_t width, int32_t height);
 
         // start preview and enable torch
@@ -209,7 +165,7 @@
         // function, keepDeviceOpen is ignored.
         status_t hasFlashUnitLocked(const String8& cameraId, bool *hasFlash, bool keepDeviceOpen);
 
-        CameraModule *mCameraModule;
+        sp<CameraProviderManager> mProviderManager;
         const camera_module_callbacks_t *mCallbacks;
         sp<CameraHardwareInterface> mDevice;
         String8 mCameraId;
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index 6124fed..c2b71a2 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -31,6 +31,8 @@
 #include <android/hardware/ICamera.h>
 #include <android/hardware/ICameraClient.h>
 
+#include <android-base/macros.h>
+#include <android-base/parseint.h>
 #include <binder/AppOpsManager.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
@@ -53,6 +55,7 @@
 #include <private/android_filesystem_config.h>
 #include <system/camera_vendor_tags.h>
 #include <system/camera_metadata.h>
+
 #include <system/camera.h>
 
 #include "CameraService.h"
@@ -68,7 +71,11 @@
 namespace android {
 
 using binder::Status;
-using namespace hardware;
+using hardware::ICamera;
+using hardware::ICameraClient;
+using hardware::ICameraServiceListener;
+using hardware::camera::common::V1_0::CameraDeviceStatus;
+using hardware::camera::common::V1_0::TorchModeStatus;
 
 // ----------------------------------------------------------------------------
 // Logging support -- this is for debugging only
@@ -102,9 +109,24 @@
         int new_status) {
     sp<CameraService> cs = const_cast<CameraService*>(
             static_cast<const CameraService*>(callbacks));
+    String8 id = String8::format("%d", camera_id);
 
-    cs->onDeviceStatusChanged(static_cast<camera_device_status_t>(camera_id),
-            static_cast<camera_device_status_t>(new_status));
+    CameraDeviceStatus newStatus{CameraDeviceStatus::NOT_PRESENT};
+    switch (new_status) {
+        case CAMERA_DEVICE_STATUS_NOT_PRESENT:
+            newStatus = CameraDeviceStatus::NOT_PRESENT;
+            break;
+        case CAMERA_DEVICE_STATUS_PRESENT:
+            newStatus = CameraDeviceStatus::PRESENT;
+            break;
+        case CAMERA_DEVICE_STATUS_ENUMERATING:
+            newStatus = CameraDeviceStatus::ENUMERATING;
+            break;
+        default:
+            ALOGW("Unknown device status change to %d", new_status);
+            break;
+    }
+    cs->onDeviceStatusChanged(id, newStatus);
 }
 
 static void torch_mode_status_change(
@@ -118,16 +140,16 @@
     sp<CameraService> cs = const_cast<CameraService*>(
                                 static_cast<const CameraService*>(callbacks));
 
-    int32_t status;
+    TorchModeStatus status;
     switch (new_status) {
         case TORCH_MODE_STATUS_NOT_AVAILABLE:
-            status = ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
+            status = TorchModeStatus::NOT_AVAILABLE;
             break;
         case TORCH_MODE_STATUS_AVAILABLE_OFF:
-            status = ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF;
+            status = TorchModeStatus::AVAILABLE_OFF;
             break;
         case TORCH_MODE_STATUS_AVAILABLE_ON:
-            status = ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON;
+            status = TorchModeStatus::AVAILABLE_ON;
             break;
         default:
             ALOGE("Unknown torch status %d", new_status);
@@ -142,16 +164,11 @@
 
 // ----------------------------------------------------------------------------
 
-// This is ugly and only safe if we never re-create the CameraService, but
-// should be ok for now.
-static CameraService *gCameraService;
-
 CameraService::CameraService() :
         mEventLog(DEFAULT_EVENT_LOG_LENGTH),
         mNumberOfCameras(0), mNumberOfNormalCameras(0),
-        mSoundRef(0), mModule(nullptr) {
+        mSoundRef(0), mInitialized(false) {
     ALOGI("CameraService started (pid=%d)", getpid());
-    gCameraService = this;
 
     this->camera_device_status_change = android::camera_device_status_change;
     this->torch_mode_status_change = android::torch_mode_status_change;
@@ -170,114 +187,97 @@
     notifier.noteResetCamera();
     notifier.noteResetFlashlight();
 
-    camera_module_t *rawModule;
-    int err = hw_get_module(CAMERA_HARDWARE_MODULE_ID,
-            (const hw_module_t **)&rawModule);
-    if (err < 0) {
-        ALOGE("Could not load camera HAL module: %d (%s)", err, strerror(-err));
-        logServiceError("Could not load camera HAL module", err);
-        return;
-    }
+    status_t res = INVALID_OPERATION;
 
-    mModule = new CameraModule(rawModule);
-    err = mModule->init();
-    if (err != OK) {
-        ALOGE("Could not initialize camera HAL module: %d (%s)", err,
-            strerror(-err));
-        logServiceError("Could not initialize camera HAL module", err);
-
-        delete mModule;
-        mModule = nullptr;
-        return;
-    }
-    ALOGI("Loaded \"%s\" camera module", mModule->getModuleName());
-
-    mNumberOfCameras = mModule->getNumberOfCameras();
-    mNumberOfNormalCameras = mNumberOfCameras;
-
-    // Setup vendor tags before we call get_camera_info the first time
-    // because HAL might need to setup static vendor keys in get_camera_info
-    VendorTagDescriptor::clearGlobalVendorTagDescriptor();
-    if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_2) {
-        setUpVendorTags();
-    }
-
-    mFlashlight = new CameraFlashlight(*mModule, *this);
-    status_t res = mFlashlight->findFlashUnits();
-    if (res) {
-        // impossible because we haven't open any camera devices.
-        ALOGE("Failed to find flash units.");
-    }
-
-    int latestStrangeCameraId = INT_MAX;
-    for (int i = 0; i < mNumberOfCameras; i++) {
-        String8 cameraId = String8::format("%d", i);
-
-        // Get camera info
-
-        struct camera_info info;
-        bool haveInfo = true;
-        status_t rc = mModule->getCameraInfo(i, &info);
-        if (rc != NO_ERROR) {
-            ALOGE("%s: Received error loading camera info for device %d, cost and"
-                    " conflicting devices fields set to defaults for this device.",
-                    __FUNCTION__, i);
-            haveInfo = false;
-        }
-
-        // Check for backwards-compatibility support
-        if (haveInfo) {
-            if (checkCameraCapabilities(i, info, &latestStrangeCameraId) != OK) {
-                delete mModule;
-                mModule = nullptr;
-                return;
-            }
-        }
-
-        // Defaults to use for cost and conflicting devices
-        int cost = 100;
-        char** conflicting_devices = nullptr;
-        size_t conflicting_devices_length = 0;
-
-        // If using post-2.4 module version, query the cost + conflicting devices from the HAL
-        if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_4 && haveInfo) {
-            cost = info.resource_cost;
-            conflicting_devices = info.conflicting_devices;
-            conflicting_devices_length = info.conflicting_devices_length;
-        }
-
-        std::set<String8> conflicting;
-        for (size_t i = 0; i < conflicting_devices_length; i++) {
-            conflicting.emplace(String8(conflicting_devices[i]));
-        }
-
-        // Initialize state for each camera device
-        {
-            Mutex::Autolock lock(mCameraStatesLock);
-            mCameraStates.emplace(cameraId, std::make_shared<CameraState>(cameraId, cost,
-                    conflicting));
-        }
-
-        if (mFlashlight->hasFlashUnit(cameraId)) {
-            mTorchStatusMap.add(cameraId,
-                    ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF);
-        }
-    }
-
-    if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_1) {
-        mModule->setCallbacks(this);
+    res = enumerateProviders();
+    if (res == OK) {
+        mInitialized = true;
     }
 
     CameraService::pingCameraServiceProxy();
 }
 
-sp<ICameraServiceProxy> CameraService::getCameraServiceProxy() {
-    sp<IServiceManager> sm = defaultServiceManager();
-    sp<IBinder> binder = sm->getService(String16("media.camera.proxy"));
-    if (binder == nullptr) {
-        return nullptr;
+status_t CameraService::enumerateProviders() {
+    status_t res;
+    Mutex::Autolock l(mServiceLock);
+
+    if (nullptr == mCameraProviderManager.get()) {
+        mCameraProviderManager = new CameraProviderManager();
+        res = mCameraProviderManager->initialize(this);
+        if (res != OK) {
+            ALOGE("%s: Unable to initialize camera provider manager: %s (%d)",
+                    __FUNCTION__, strerror(-res), res);
+            return res;
+        }
     }
-    sp<ICameraServiceProxy> proxyBinder = interface_cast<ICameraServiceProxy>(binder);
+
+    mNumberOfCameras = mCameraProviderManager->getCameraCount();
+    mNumberOfNormalCameras =
+            mCameraProviderManager->getAPI1CompatibleCameraCount();
+
+    // Setup vendor tags before we call get_camera_info the first time
+    // because HAL might need to setup static vendor keys in get_camera_info
+    // TODO: maybe put this into CameraProviderManager::initialize()?
+    mCameraProviderManager->setUpVendorTags();
+
+    if (nullptr == mFlashlight.get()) {
+        mFlashlight = new CameraFlashlight(mCameraProviderManager, this);
+    }
+
+    res = mFlashlight->findFlashUnits();
+    if (res != OK) {
+        ALOGE("Failed to enumerate flash units: %s (%d)", strerror(-res), res);
+    }
+
+    for (auto& cameraId : mCameraProviderManager->getCameraDeviceIds()) {
+        String8 id8 = String8(cameraId.c_str());
+        {
+            Mutex::Autolock lock(mCameraStatesLock);
+            auto iter = mCameraStates.find(id8);
+            if (iter != mCameraStates.end()) {
+                continue;
+            }
+        }
+
+        hardware::camera::common::V1_0::CameraResourceCost cost;
+        res = mCameraProviderManager->getResourceCost(cameraId, &cost);
+        if (res != OK) {
+            ALOGE("Failed to query device resource cost: %s (%d)", strerror(-res), res);
+            continue;
+        }
+        std::set<String8> conflicting;
+        for (size_t i = 0; i < cost.conflictingDevices.size(); i++) {
+            conflicting.emplace(String8(cost.conflictingDevices[i].c_str()));
+        }
+
+        {
+            Mutex::Autolock lock(mCameraStatesLock);
+            mCameraStates.emplace(id8,
+                std::make_shared<CameraState>(id8, cost.resourceCost, conflicting));
+        }
+
+        onDeviceStatusChanged(id8, CameraDeviceStatus::PRESENT);
+
+        if (mFlashlight->hasFlashUnit(id8)) {
+            mTorchStatusMap.add(id8, TorchModeStatus::AVAILABLE_OFF);
+        }
+    }
+
+    return OK;
+}
+
+sp<ICameraServiceProxy> CameraService::getCameraServiceProxy() {
+    sp<ICameraServiceProxy> proxyBinder = nullptr;
+#ifndef __BRILLO__
+    sp<IServiceManager> sm = defaultServiceManager();
+    // Use checkService because cameraserver normally starts before the
+    // system server and the proxy service. So the long timeout that getService
+    // has before giving up is inappropriate.
+    sp<IBinder> binder = sm->checkService(String16("media.camera.proxy"));
+    if (binder != nullptr) {
+        proxyBinder = interface_cast<ICameraServiceProxy>(binder);
+    }
+#endif
     return proxyBinder;
 }
 
@@ -288,35 +288,40 @@
 }
 
 CameraService::~CameraService() {
-    if (mModule) {
-        delete mModule;
-        mModule = nullptr;
-    }
     VendorTagDescriptor::clearGlobalVendorTagDescriptor();
-    gCameraService = nullptr;
 }
 
-void CameraService::onDeviceStatusChanged(camera_device_status_t  cameraId,
-        camera_device_status_t newStatus) {
-    ALOGI("%s: Status changed for cameraId=%d, newStatus=%d", __FUNCTION__,
-          cameraId, newStatus);
+void CameraService::onNewProviderRegistered() {
+    enumerateProviders();
+}
 
-    String8 id = String8::format("%d", cameraId);
+void CameraService::onDeviceStatusChanged(const String8& id,
+        CameraDeviceStatus newHalStatus) {
+    ALOGI("%s: Status changed for cameraId=%s, newStatus=%d", __FUNCTION__,
+            id.string(), newHalStatus);
+
+    StatusInternal newStatus = mapToInternal(newHalStatus);
+
     std::shared_ptr<CameraState> state = getCameraState(id);
 
     if (state == nullptr) {
-        ALOGE("%s: Bad camera ID %d", __FUNCTION__, cameraId);
+        if (newStatus == StatusInternal::PRESENT) {
+            ALOGW("%s: Unknown camera ID %s, probably newly registered?",
+                    __FUNCTION__, id.string());
+        } else {
+            ALOGE("%s: Bad camera ID %s", __FUNCTION__, id.string());
+        }
         return;
     }
 
-    int32_t oldStatus = state->getStatus();
+    StatusInternal oldStatus = state->getStatus();
 
-    if (oldStatus == static_cast<int32_t>(newStatus)) {
+    if (oldStatus == newStatus) {
         ALOGE("%s: State transition to the same status %#x not allowed", __FUNCTION__, newStatus);
         return;
     }
 
-    if (newStatus == CAMERA_DEVICE_STATUS_NOT_PRESENT) {
+    if (newStatus == StatusInternal::NOT_PRESENT) {
         logDeviceRemoved(id, String8::format("Device status changed from %d to %d", oldStatus,
                 newStatus));
         sp<BasicClient> clientToDisconnect;
@@ -326,25 +331,23 @@
 
             // Set the device status to NOT_PRESENT, clients will no longer be able to connect
             // to this device until the status changes
-            updateStatus(ICameraServiceListener::STATUS_NOT_PRESENT, id);
+            updateStatus(StatusInternal::NOT_PRESENT, id);
 
             // Remove cached shim parameters
             state->setShimParams(CameraParameters());
 
-            // Remove the client from the list of active clients
+            // Remove the client from the list of active clients, if there is one
             clientToDisconnect = removeClientLocked(id);
+        }
 
+        // Disconnect client
+        if (clientToDisconnect.get() != nullptr) {
+            ALOGI("%s: Client for camera ID %s evicted due to device status change from HAL",
+                    __FUNCTION__, id.string());
             // Notify the client of disconnection
             clientToDisconnect->notifyError(
                     hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
                     CaptureResultExtras{});
-        }
-
-        ALOGI("%s: Client for camera ID %s evicted due to device status change from HAL",
-                __FUNCTION__, id.string());
-
-        // Disconnect client
-        if (clientToDisconnect.get() != nullptr) {
             // Ensure not in binder RPC so client disconnect PID checks work correctly
             LOG_ALWAYS_FATAL_IF(getCallingPid() != getpid(),
                     "onDeviceStatusChanged must be called from the camera service process!");
@@ -352,27 +355,27 @@
         }
 
     } else {
-        if (oldStatus == ICameraServiceListener::STATUS_NOT_PRESENT) {
+        if (oldStatus == StatusInternal::NOT_PRESENT) {
             logDeviceAdded(id, String8::format("Device status changed from %d to %d", oldStatus,
                     newStatus));
         }
-        updateStatus(static_cast<int32_t>(newStatus), id);
+        updateStatus(newStatus, id);
     }
 
 }
 
 void CameraService::onTorchStatusChanged(const String8& cameraId,
-        int32_t newStatus) {
+        TorchModeStatus newStatus) {
     Mutex::Autolock al(mTorchStatusMutex);
     onTorchStatusChangedLocked(cameraId, newStatus);
 }
 
 void CameraService::onTorchStatusChangedLocked(const String8& cameraId,
-        int32_t newStatus) {
+        TorchModeStatus newStatus) {
     ALOGI("%s: Torch status changed for cameraId=%s, newStatus=%d",
             __FUNCTION__, cameraId.string(), newStatus);
 
-    int32_t status;
+    TorchModeStatus status;
     status_t res = getTorchStatusLocked(cameraId, &status);
     if (res) {
         ALOGE("%s: cannot get torch status of camera %s: %s (%d)",
@@ -400,16 +403,16 @@
             BatteryNotifier& notifier(BatteryNotifier::getInstance());
             if (oldUid != newUid) {
                 // If the UID has changed, log the status and update current UID in mTorchUidMap
-                if (status == ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON) {
+                if (status == TorchModeStatus::AVAILABLE_ON) {
                     notifier.noteFlashlightOff(cameraId, oldUid);
                 }
-                if (newStatus == ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON) {
+                if (newStatus == TorchModeStatus::AVAILABLE_ON) {
                     notifier.noteFlashlightOn(cameraId, newUid);
                 }
                 iter->second.second = newUid;
             } else {
                 // If the UID has not changed, log the status
-                if (newStatus == ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON) {
+                if (newStatus == TorchModeStatus::AVAILABLE_ON) {
                     notifier.noteFlashlightOn(cameraId, oldUid);
                 } else {
                     notifier.noteFlashlightOff(cameraId, oldUid);
@@ -421,13 +424,14 @@
     {
         Mutex::Autolock lock(mStatusListenerLock);
         for (auto& i : mListenerList) {
-            i->onTorchStatusChanged(newStatus, String16{cameraId});
+            i->onTorchStatusChanged(mapToInterface(newStatus), String16{cameraId});
         }
     }
 }
 
 Status CameraService::getNumberOfCameras(int32_t type, int32_t* numCameras) {
     ATRACE_CALL();
+    Mutex::Autolock l(mServiceLock);
     switch (type) {
         case CAMERA_TYPE_BACKWARD_COMPATIBLE:
             *numCameras = mNumberOfNormalCameras;
@@ -447,7 +451,9 @@
 Status CameraService::getCameraInfo(int cameraId,
         CameraInfo* cameraInfo) {
     ATRACE_CALL();
-    if (!mModule) {
+    Mutex::Autolock l(mServiceLock);
+
+    if (!mInitialized) {
         return STATUS_ERROR(ERROR_DISCONNECTED,
                 "Camera subsystem is not available");
     }
@@ -457,170 +463,48 @@
                 "CameraId is not valid");
     }
 
-    struct camera_info info;
-    Status rc = filterGetInfoErrorCode(
-        mModule->getCameraInfo(cameraId, &info));
-
-    if (rc.isOk()) {
-        cameraInfo->facing = info.facing;
-        cameraInfo->orientation = info.orientation;
-        // CameraInfo is for android.hardware.Camera which does not
-        // support external camera facing. The closest approximation would be
-        // front camera.
-        if (cameraInfo->facing == CAMERA_FACING_EXTERNAL) {
-            cameraInfo->facing = CAMERA_FACING_FRONT;
-        }
+    Status ret = Status::ok();
+    status_t err = mCameraProviderManager->getCameraInfo(std::to_string(cameraId), cameraInfo);
+    if (err != OK) {
+        ret = STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
+                "Error retrieving camera info from device %d: %s (%d)", cameraId,
+                strerror(-err), err);
     }
-    return rc;
+
+    return ret;
 }
 
 int CameraService::cameraIdToInt(const String8& cameraId) {
-    errno = 0;
-    size_t pos = 0;
-    int ret = stoi(std::string{cameraId.string()}, &pos);
-    if (errno != 0 || pos != cameraId.size()) {
+    int id;
+    bool success = base::ParseInt(cameraId.string(), &id, 0);
+    if (!success) {
         return -1;
     }
-    return ret;
+    return id;
 }
 
-Status CameraService::generateShimMetadata(int cameraId, /*out*/CameraMetadata* cameraInfo) {
-    ATRACE_CALL();
-
-    Status ret = Status::ok();
-
-    struct CameraInfo info;
-    if (!(ret = getCameraInfo(cameraId, &info)).isOk()) {
-        return ret;
-    }
-
-    CameraMetadata shimInfo;
-    int32_t orientation = static_cast<int32_t>(info.orientation);
-    status_t rc;
-    if ((rc = shimInfo.update(ANDROID_SENSOR_ORIENTATION, &orientation, 1)) != OK) {
-        return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                "Error updating metadata: %d (%s)", rc, strerror(-rc));
-    }
-
-    uint8_t facing = (info.facing == CAMERA_FACING_FRONT) ?
-            ANDROID_LENS_FACING_FRONT : ANDROID_LENS_FACING_BACK;
-    if ((rc = shimInfo.update(ANDROID_LENS_FACING, &facing, 1)) != OK) {
-        return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                "Error updating metadata: %d (%s)", rc, strerror(-rc));
-    }
-
-    CameraParameters shimParams;
-    if (!(ret = getLegacyParametersLazy(cameraId, /*out*/&shimParams)).isOk()) {
-        // Error logged by callee
-        return ret;
-    }
-
-    Vector<Size> sizes;
-    Vector<Size> jpegSizes;
-    Vector<int32_t> formats;
-    {
-        shimParams.getSupportedPreviewSizes(/*out*/sizes);
-        shimParams.getSupportedPreviewFormats(/*out*/formats);
-        shimParams.getSupportedPictureSizes(/*out*/jpegSizes);
-    }
-
-    // Always include IMPLEMENTATION_DEFINED
-    formats.add(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED);
-
-    const size_t INTS_PER_CONFIG = 4;
-
-    // Build available stream configurations metadata
-    size_t streamConfigSize = (sizes.size() * formats.size() + jpegSizes.size()) * INTS_PER_CONFIG;
-
-    Vector<int32_t> streamConfigs;
-    streamConfigs.setCapacity(streamConfigSize);
-
-    for (size_t i = 0; i < formats.size(); ++i) {
-        for (size_t j = 0; j < sizes.size(); ++j) {
-            streamConfigs.add(formats[i]);
-            streamConfigs.add(sizes[j].width);
-            streamConfigs.add(sizes[j].height);
-            streamConfigs.add(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT);
-        }
-    }
-
-    for (size_t i = 0; i < jpegSizes.size(); ++i) {
-        streamConfigs.add(HAL_PIXEL_FORMAT_BLOB);
-        streamConfigs.add(jpegSizes[i].width);
-        streamConfigs.add(jpegSizes[i].height);
-        streamConfigs.add(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT);
-    }
-
-    if ((rc = shimInfo.update(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS,
-            streamConfigs.array(), streamConfigSize)) != OK) {
-        return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                "Error updating metadata: %d (%s)", rc, strerror(-rc));
-    }
-
-    int64_t fakeMinFrames[0];
-    // TODO: Fixme, don't fake min frame durations.
-    if ((rc = shimInfo.update(ANDROID_SCALER_AVAILABLE_MIN_FRAME_DURATIONS,
-            fakeMinFrames, 0)) != OK) {
-        return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                "Error updating metadata: %d (%s)", rc, strerror(-rc));
-    }
-
-    int64_t fakeStalls[0];
-    // TODO: Fixme, don't fake stall durations.
-    if ((rc = shimInfo.update(ANDROID_SCALER_AVAILABLE_STALL_DURATIONS,
-            fakeStalls, 0)) != OK) {
-        return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                "Error updating metadata: %d (%s)", rc, strerror(-rc));
-    }
-
-    *cameraInfo = shimInfo;
-    return ret;
-}
-
-Status CameraService::getCameraCharacteristics(int cameraId,
-                                                CameraMetadata* cameraInfo) {
+Status CameraService::getCameraCharacteristics(const String16& cameraId,
+        CameraMetadata* cameraInfo) {
     ATRACE_CALL();
     if (!cameraInfo) {
         ALOGE("%s: cameraInfo is NULL", __FUNCTION__);
         return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "cameraInfo is NULL");
     }
 
-    if (!mModule) {
-        ALOGE("%s: camera hardware module doesn't exist", __FUNCTION__);
+    if (!mInitialized) {
+        ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
         return STATUS_ERROR(ERROR_DISCONNECTED,
                 "Camera subsystem is not available");;
     }
 
-    if (cameraId < 0 || cameraId >= mNumberOfCameras) {
-        ALOGE("%s: Invalid camera id: %d", __FUNCTION__, cameraId);
-        return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
-                "Invalid camera id: %d", cameraId);
-    }
+    Status ret{};
 
-    int facing;
-    Status ret;
-    if (mModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_0 ||
-            getDeviceVersion(cameraId, &facing) < CAMERA_DEVICE_API_VERSION_3_0) {
-        /**
-         * Backwards compatibility mode for old HALs:
-         * - Convert CameraInfo into static CameraMetadata properties.
-         * - Retrieve cached CameraParameters for this camera.  If none exist,
-         *   attempt to open CameraClient and retrieve the CameraParameters.
-         * - Convert cached CameraParameters into static CameraMetadata
-         *   properties.
-         */
-        ALOGI("%s: Switching to HAL1 shim implementation...", __FUNCTION__);
-
-        ret = generateShimMetadata(cameraId, cameraInfo);
-    } else {
-        /**
-         * Normal HAL 2.1+ codepath.
-         */
-        struct camera_info info;
-        ret = filterGetInfoErrorCode(mModule->getCameraInfo(cameraId, &info));
-        if (ret.isOk()) {
-            *cameraInfo = info.static_camera_characteristics;
-        }
+    status_t res = mCameraProviderManager->getCameraCharacteristics(
+            String8(cameraId).string(), cameraInfo);
+    if (res != OK) {
+        return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION, "Unable to retrieve camera "
+                "characteristics for device %s: %s (%d)", String8(cameraId).string(),
+                strerror(-res), res);
     }
 
     return ret;
@@ -641,28 +525,12 @@
     return String8(formattedTime);
 }
 
-int CameraService::getCameraPriorityFromProcState(int procState) {
-    // Find the priority for the camera usage based on the process state.  Higher priority clients
-    // win for evictions.
-    if (procState < 0) {
-        ALOGE("%s: Received invalid process state %d from ActivityManagerService!", __FUNCTION__,
-                procState);
-        return -1;
-    }
-    // Treat sleeping TOP processes the same as regular TOP processes, for
-    // access priority.  This is important for lock-screen camera launch scenarios
-    if (procState == PROCESS_STATE_TOP_SLEEPING) {
-        procState = PROCESS_STATE_TOP;
-    }
-    return INT_MAX - procState;
-}
-
 Status CameraService::getCameraVendorTagDescriptor(
         /*out*/
         hardware::camera2::params::VendorTagDescriptor* desc) {
     ATRACE_CALL();
-    if (!mModule) {
-        ALOGE("%s: camera hardware module doesn't exist", __FUNCTION__);
+    if (!mInitialized) {
+        ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
         return STATUS_ERROR(ERROR_DISCONNECTED, "Camera subsystem not available");
     }
     sp<VendorTagDescriptor> globalDescriptor = VendorTagDescriptor::getGlobalVendorTagDescriptor();
@@ -672,21 +540,38 @@
     return Status::ok();
 }
 
-int CameraService::getDeviceVersion(int cameraId, int* facing) {
+Status CameraService::getCameraVendorTagCache(
+        /*out*/ hardware::camera2::params::VendorTagDescriptorCache* cache) {
     ATRACE_CALL();
-    struct camera_info info;
-    if (mModule->getCameraInfo(cameraId, &info) != OK) {
-        return -1;
+    if (!mInitialized) {
+        ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
+        return STATUS_ERROR(ERROR_DISCONNECTED,
+                "Camera subsystem not available");
     }
-
-    int deviceVersion;
-    if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_0) {
-        deviceVersion = info.device_version;
-    } else {
-        deviceVersion = CAMERA_DEVICE_API_VERSION_1_0;
+    sp<VendorTagDescriptorCache> globalCache =
+            VendorTagDescriptorCache::getGlobalVendorTagCache();
+    if (globalCache != nullptr) {
+        *cache = *(globalCache.get());
     }
+    return Status::ok();
+}
 
+int CameraService::getDeviceVersion(const String8& cameraId, int* facing) {
+    ATRACE_CALL();
+
+    int deviceVersion = 0;
+
+    status_t res;
+    hardware::hidl_version maxVersion{0,0};
+    res = mCameraProviderManager->getHighestSupportedVersion(cameraId.string(),
+            &maxVersion);
+    if (res != OK) return -1;
+    deviceVersion = HARDWARE_DEVICE_API_VERSION(maxVersion.get_major(), maxVersion.get_minor());
+
+    hardware::CameraInfo info;
     if (facing) {
+        res = mCameraProviderManager->getCameraInfo(cameraId.string(), &info);
+        if (res != OK) return -1;
         *facing = info.facing;
     }
 
@@ -697,10 +582,10 @@
     switch(err) {
         case NO_ERROR:
             return Status::ok();
-        case -EINVAL:
+        case BAD_VALUE:
             return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
                     "CameraId is not valid for HAL module");
-        case -ENODEV:
+        case NO_INIT:
             return STATUS_ERROR(ERROR_DISCONNECTED,
                     "Camera device not available");
         default:
@@ -710,45 +595,8 @@
     }
 }
 
-bool CameraService::setUpVendorTags() {
-    ATRACE_CALL();
-    vendor_tag_ops_t vOps = vendor_tag_ops_t();
-
-    // Check if vendor operations have been implemented
-    if (!mModule->isVendorTagDefined()) {
-        ALOGI("%s: No vendor tags defined for this device.", __FUNCTION__);
-        return false;
-    }
-
-    mModule->getVendorTagOps(&vOps);
-
-    // Ensure all vendor operations are present
-    if (vOps.get_tag_count == NULL || vOps.get_all_tags == NULL ||
-            vOps.get_section_name == NULL || vOps.get_tag_name == NULL ||
-            vOps.get_tag_type == NULL) {
-        ALOGE("%s: Vendor tag operations not fully defined. Ignoring definitions."
-               , __FUNCTION__);
-        return false;
-    }
-
-    // Read all vendor tag definitions into a descriptor
-    sp<VendorTagDescriptor> desc;
-    status_t res;
-    if ((res = VendorTagDescriptor::createDescriptorFromOps(&vOps, /*out*/desc))
-            != OK) {
-        ALOGE("%s: Could not generate descriptor from vendor tag operations,"
-              "received error %s (%d). Camera clients will not be able to use"
-              "vendor tags", __FUNCTION__, strerror(res), res);
-        return false;
-    }
-
-    // Set the global descriptor to use with camera metadata
-    VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc);
-    return true;
-}
-
 Status CameraService::makeClient(const sp<CameraService>& cameraService,
-        const sp<IInterface>& cameraCb, const String16& packageName, int cameraId,
+        const sp<IInterface>& cameraCb, const String16& packageName, const String8& cameraId,
         int facing, int clientPid, uid_t clientUid, int servicePid, bool legacyMode,
         int halVersion, int deviceVersion, apiLevel effectiveApiLevel,
         /*out*/sp<BasicClient>* client) {
@@ -760,13 +608,13 @@
           case CAMERA_DEVICE_API_VERSION_1_0:
             if (effectiveApiLevel == API_1) {  // Camera1 API route
                 sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
-                *client = new CameraClient(cameraService, tmp, packageName, cameraId, facing,
-                        clientPid, clientUid, getpid(), legacyMode);
+                *client = new CameraClient(cameraService, tmp, packageName, cameraIdToInt(cameraId),
+                        facing, clientPid, clientUid, getpid(), legacyMode);
             } else { // Camera2 API route
                 ALOGW("Camera using old HAL version: %d", deviceVersion);
                 return STATUS_ERROR_FMT(ERROR_DEPRECATED_HAL,
-                        "Camera device \"%d\" HAL version %d does not support camera2 API",
-                        cameraId, deviceVersion);
+                        "Camera device \"%s\" HAL version %d does not support camera2 API",
+                        cameraId.string(), deviceVersion);
             }
             break;
           case CAMERA_DEVICE_API_VERSION_3_0:
@@ -776,8 +624,8 @@
           case CAMERA_DEVICE_API_VERSION_3_4:
             if (effectiveApiLevel == API_1) { // Camera1 API route
                 sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
-                *client = new Camera2Client(cameraService, tmp, packageName, cameraId, facing,
-                        clientPid, clientUid, servicePid, legacyMode);
+                *client = new Camera2Client(cameraService, tmp, packageName, cameraIdToInt(cameraId),
+                        facing, clientPid, clientUid, servicePid, legacyMode);
             } else { // Camera2 API route
                 sp<hardware::camera2::ICameraDeviceCallbacks> tmp =
                         static_cast<hardware::camera2::ICameraDeviceCallbacks*>(cameraCb.get());
@@ -789,8 +637,8 @@
             // Should not be reachable
             ALOGE("Unknown camera device HAL version: %d", deviceVersion);
             return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                    "Camera device \"%d\" has unknown HAL version %d",
-                    cameraId, deviceVersion);
+                    "Camera device \"%s\" has unknown HAL version %d",
+                    cameraId.string(), deviceVersion);
         }
     } else {
         // A particular HAL version is requested by caller. Create CameraClient
@@ -799,16 +647,16 @@
             halVersion == CAMERA_DEVICE_API_VERSION_1_0) {
             // Only support higher HAL version device opened as HAL1.0 device.
             sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
-            *client = new CameraClient(cameraService, tmp, packageName, cameraId, facing,
-                    clientPid, clientUid, servicePid, legacyMode);
+            *client = new CameraClient(cameraService, tmp, packageName, cameraIdToInt(cameraId),
+                    facing, clientPid, clientUid, servicePid, legacyMode);
         } else {
             // Other combinations (e.g. HAL3.x open as HAL2.x) are not supported yet.
             ALOGE("Invalid camera HAL version %x: HAL %x device can only be"
                     " opened as HAL %x device", halVersion, deviceVersion,
                     CAMERA_DEVICE_API_VERSION_1_0);
             return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
-                    "Camera device \"%d\" (HAL version %d) cannot be opened as HAL version %d",
-                    cameraId, deviceVersion, halVersion);
+                    "Camera device \"%s\" (HAL version %d) cannot be opened as HAL version %d",
+                    cameraId.string(), deviceVersion, halVersion);
         }
     }
     return Status::ok();
@@ -828,6 +676,66 @@
     return s;
 }
 
+int32_t CameraService::mapToInterface(TorchModeStatus status) {
+    int32_t serviceStatus = ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
+    switch (status) {
+        case TorchModeStatus::NOT_AVAILABLE:
+            serviceStatus = ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
+            break;
+        case TorchModeStatus::AVAILABLE_OFF:
+            serviceStatus = ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF;
+            break;
+        case TorchModeStatus::AVAILABLE_ON:
+            serviceStatus = ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON;
+            break;
+        default:
+            ALOGW("Unknown new flash status: %d", status);
+    }
+    return serviceStatus;
+}
+
+CameraService::StatusInternal CameraService::mapToInternal(CameraDeviceStatus status) {
+    StatusInternal serviceStatus = StatusInternal::NOT_PRESENT;
+    switch (status) {
+        case CameraDeviceStatus::NOT_PRESENT:
+            serviceStatus = StatusInternal::NOT_PRESENT;
+            break;
+        case CameraDeviceStatus::PRESENT:
+            serviceStatus = StatusInternal::PRESENT;
+            break;
+        case CameraDeviceStatus::ENUMERATING:
+            serviceStatus = StatusInternal::ENUMERATING;
+            break;
+        default:
+            ALOGW("Unknown new HAL device status: %d", status);
+    }
+    return serviceStatus;
+}
+
+int32_t CameraService::mapToInterface(StatusInternal status) {
+    int32_t serviceStatus = ICameraServiceListener::STATUS_NOT_PRESENT;
+    switch (status) {
+        case StatusInternal::NOT_PRESENT:
+            serviceStatus = ICameraServiceListener::STATUS_NOT_PRESENT;
+            break;
+        case StatusInternal::PRESENT:
+            serviceStatus = ICameraServiceListener::STATUS_PRESENT;
+            break;
+        case StatusInternal::ENUMERATING:
+            serviceStatus = ICameraServiceListener::STATUS_ENUMERATING;
+            break;
+        case StatusInternal::NOT_AVAILABLE:
+            serviceStatus = ICameraServiceListener::STATUS_NOT_AVAILABLE;
+            break;
+        case StatusInternal::UNKNOWN:
+            serviceStatus = ICameraServiceListener::STATUS_UNKNOWN;
+            break;
+        default:
+            ALOGW("Unknown new internal device status: %d", status);
+    }
+    return serviceStatus;
+}
+
 Status CameraService::initializeShimMetadata(int cameraId) {
     int uid = getCallingUid();
 
@@ -924,6 +832,53 @@
         const String8& clientName8, /*inout*/int& clientUid, /*inout*/int& clientPid,
         /*out*/int& originalClientPid) const {
 
+#ifdef __BRILLO__
+    UNUSED(clientName8);
+    UNUSED(clientUid);
+    UNUSED(clientPid);
+    UNUSED(originalClientPid);
+#else
+    Status allowed = validateClientPermissionsLocked(cameraId, clientName8, clientUid, clientPid,
+            originalClientPid);
+    if (!allowed.isOk()) {
+        return allowed;
+    }
+#endif  // __BRILLO__
+
+    int callingPid = getCallingPid();
+
+    if (!mInitialized) {
+        ALOGE("CameraService::connect X (PID %d) rejected (camera HAL module not loaded)",
+                callingPid);
+        return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
+                "No camera HAL module available to open camera device \"%s\"", cameraId.string());
+    }
+
+    if (getCameraState(cameraId) == nullptr) {
+        ALOGE("CameraService::connect X (PID %d) rejected (invalid camera ID %s)", callingPid,
+                cameraId.string());
+        return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
+                "No camera device with ID \"%s\" available", cameraId.string());
+    }
+
+    status_t err = checkIfDeviceIsUsable(cameraId);
+    if (err != NO_ERROR) {
+        switch(err) {
+            case -ENODEV:
+            case -EBUSY:
+                return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
+                        "No camera device with ID \"%s\" currently available", cameraId.string());
+            default:
+                return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
+                        "Unknown error connecting to ID \"%s\"", cameraId.string());
+        }
+    }
+    return Status::ok();
+}
+
+Status CameraService::validateClientPermissionsLocked(const String8& cameraId,
+        const String8& clientName8, int& clientUid, int& clientPid,
+        /*out*/int& originalClientPid) const {
     int callingPid = getCallingPid();
     int callingUid = getCallingUid();
 
@@ -967,20 +922,6 @@
     originalClientPid = clientPid;
     clientPid = callingPid;
 
-    if (!mModule) {
-        ALOGE("CameraService::connect X (PID %d) rejected (camera HAL module not loaded)",
-                callingPid);
-        return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
-                "No camera HAL module available to open camera device \"%s\"", cameraId.string());
-    }
-
-    if (getCameraState(cameraId) == nullptr) {
-        ALOGE("CameraService::connect X (PID %d) rejected (invalid camera ID %s)", callingPid,
-                cameraId.string());
-        return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
-                "No camera device with ID \"%s\" available", cameraId.string());
-    }
-
     userid_t clientUserId = multiuser_get_user_id(clientUid);
 
     // Only allow clients who are being used by the current foreground device user, unless calling
@@ -994,18 +935,6 @@
                 clientUserId, cameraId.string());
     }
 
-    status_t err = checkIfDeviceIsUsable(cameraId);
-    if (err != NO_ERROR) {
-        switch(err) {
-            case -ENODEV:
-            case -EBUSY:
-                return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
-                        "No camera device with ID \"%s\" currently available", cameraId.string());
-            default:
-                return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                        "Unknown error connecting to ID \"%s\"", cameraId.string());
-        }
-    }
     return Status::ok();
 }
 
@@ -1018,12 +947,12 @@
         return -ENODEV;
     }
 
-    int32_t currentStatus = cameraState->getStatus();
-    if (currentStatus == ICameraServiceListener::STATUS_NOT_PRESENT) {
+    StatusInternal currentStatus = cameraState->getStatus();
+    if (currentStatus == StatusInternal::NOT_PRESENT) {
         ALOGE("CameraService::connect X (PID %d) rejected (camera %s is not connected)",
                 callingPid, cameraId.string());
         return -ENODEV;
-    } else if (currentStatus == ICameraServiceListener::STATUS_ENUMERATING) {
+    } else if (currentStatus == StatusInternal::ENUMERATING) {
         ALOGE("CameraService::connect X (PID %d) rejected, (camera %s is initializing)",
                 callingPid, cameraId.string());
         return -EBUSY;
@@ -1099,20 +1028,24 @@
         std::vector<int> ownerPids(mActiveClientManager.getAllOwners());
         ownerPids.push_back(clientPid);
 
-        // Use the value +PROCESS_STATE_NONEXISTENT, to avoid taking
-        // address of PROCESS_STATE_NONEXISTENT as a reference argument
-        // for the vector constructor. PROCESS_STATE_NONEXISTENT does
-        // not have an out-of-class definition.
-        std::vector<int> priorities(ownerPids.size(), +PROCESS_STATE_NONEXISTENT);
+        std::vector<int> priorityScores(ownerPids.size());
+        std::vector<int> states(ownerPids.size());
 
-        // Get priorites of all active PIDs
-        ProcessInfoService::getProcessStatesFromPids(ownerPids.size(), &ownerPids[0],
-                /*out*/&priorities[0]);
+        // Get priority scores of all active PIDs
+        status_t err = ProcessInfoService::getProcessStatesScoresFromPids(
+                ownerPids.size(), &ownerPids[0], /*out*/&states[0],
+                /*out*/&priorityScores[0]);
+        if (err != OK) {
+            ALOGE("%s: Priority score query failed: %d",
+                  __FUNCTION__, err);
+            return err;
+        }
 
         // Update all active clients' priorities
-        std::map<int,int> pidToPriorityMap;
+        std::map<int,resource_policy::ClientPriority> pidToPriorityMap;
         for (size_t i = 0; i < ownerPids.size() - 1; i++) {
-            pidToPriorityMap.emplace(ownerPids[i], getCameraPriorityFromProcState(priorities[i]));
+            pidToPriorityMap.emplace(ownerPids[i],
+                    resource_policy::ClientPriority(priorityScores[i], states[i]));
         }
         mActiveClientManager.updatePriorities(pidToPriorityMap);
 
@@ -1129,7 +1062,9 @@
         clientDescriptor = CameraClientManager::makeClientDescriptor(cameraId,
                 sp<BasicClient>{nullptr}, static_cast<int32_t>(state->getCost()),
                 state->getConflicting(),
-                getCameraPriorityFromProcState(priorities[priorities.size() - 1]), clientPid);
+                priorityScores[priorityScores.size() - 1],
+                clientPid,
+                states[states.size() - 1]);
 
         // Find clients that would be evicted
         auto evicted = mActiveClientManager.wouldEvict(clientDescriptor);
@@ -1146,19 +1081,22 @@
                     mActiveClientManager.getIncompatibleClients(clientDescriptor);
 
             String8 msg = String8::format("%s : DENIED connect device %s client for package %s "
-                    "(PID %d, priority %d) due to eviction policy", curTime.string(),
+                    "(PID %d, score %d state %d) due to eviction policy", curTime.string(),
                     cameraId.string(), packageName.string(), clientPid,
-                    getCameraPriorityFromProcState(priorities[priorities.size() - 1]));
+                    priorityScores[priorityScores.size() - 1],
+                    states[states.size() - 1]);
 
             for (auto& i : incompatibleClients) {
                 msg.appendFormat("\n   - Blocked by existing device %s client for package %s"
-                        "(PID %" PRId32 ", priority %" PRId32 ")", i->getKey().string(),
-                        String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
-                        i->getPriority());
+                        "(PID %" PRId32 ", score %" PRId32 ", state %" PRId32 ")",
+                        i->getKey().string(),
+                        String8{i->getValue()->getPackageName()}.string(),
+                        i->getOwnerId(), i->getPriority().getScore(),
+                        i->getPriority().getState());
                 ALOGE("   Conflicts with: Device %s, client package %s (PID %"
-                        PRId32 ", priority %" PRId32 ")", i->getKey().string(),
+                        PRId32 ", score %" PRId32 ", state %" PRId32 ")", i->getKey().string(),
                         String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
-                        i->getPriority());
+                        i->getPriority().getScore(), i->getPriority().getState());
             }
 
             // Log the client's attempt
@@ -1186,12 +1124,14 @@
 
             // Log the clients evicted
             logEvent(String8::format("EVICT device %s client held by package %s (PID"
-                    " %" PRId32 ", priority %" PRId32 ")\n   - Evicted by device %s client for"
-                    " package %s (PID %d, priority %" PRId32 ")",
+                    " %" PRId32 ", score %" PRId32 ", state %" PRId32 ")\n - Evicted by device %s client for"
+                    " package %s (PID %d, score %" PRId32 ", state %" PRId32 ")",
                     i->getKey().string(), String8{clientSp->getPackageName()}.string(),
-                    i->getOwnerId(), i->getPriority(), cameraId.string(),
+                    i->getOwnerId(), i->getPriority().getScore(),
+                    i->getPriority().getState(), cameraId.string(),
                     packageName.string(), clientPid,
-                    getCameraPriorityFromProcState(priorities[priorities.size() - 1])));
+                    priorityScores[priorityScores.size() - 1],
+                    states[states.size() - 1]));
 
             // Notify the client of disconnection
             clientSp->notifyError(hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
@@ -1284,23 +1224,6 @@
 
     ATRACE_CALL();
     String8 id = String8::format("%d", cameraId);
-    int apiVersion = mModule->getModuleApiVersion();
-    if (halVersion != CAMERA_HAL_API_VERSION_UNSPECIFIED &&
-            apiVersion < CAMERA_MODULE_API_VERSION_2_3) {
-        /*
-         * Either the HAL version is unspecified in which case this just creates
-         * a camera client selected by the latest device version, or
-         * it's a particular version in which case the HAL must supported
-         * the open_legacy call
-         */
-        String8 msg = String8::format("Camera HAL module version %x too old for connectLegacy!",
-                apiVersion);
-        ALOGE("%s: %s",
-                __FUNCTION__, msg.string());
-        logRejected(id, getCallingPid(), String8(clientPackageName),
-                msg);
-        return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
-    }
 
     Status ret = Status::ok();
     sp<Client> client = nullptr;
@@ -1321,7 +1244,7 @@
 
 Status CameraService::connectDevice(
         const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb,
-        int cameraId,
+        const String16& cameraId,
         const String16& clientPackageName,
         int clientUid,
         /*out*/
@@ -1329,7 +1252,7 @@
 
     ATRACE_CALL();
     Status ret = Status::ok();
-    String8 id = String8::format("%d", cameraId);
+    String8 id = String8(cameraId);
     sp<CameraDeviceClient> client = nullptr;
     ret = connectHelper<hardware::camera2::ICameraDeviceCallbacks,CameraDeviceClient>(cameraCb, id,
             CAMERA_HAL_API_VERSION_UNSPECIFIED, clientPackageName,
@@ -1347,8 +1270,167 @@
     return ret;
 }
 
+template<class CALLBACK, class CLIENT>
+Status CameraService::connectHelper(const sp<CALLBACK>& cameraCb, const String8& cameraId,
+        int halVersion, const String16& clientPackageName, int clientUid, int clientPid,
+        apiLevel effectiveApiLevel, bool legacyMode, bool shimUpdateOnly,
+        /*out*/sp<CLIENT>& device) {
+    binder::Status ret = binder::Status::ok();
+
+    String8 clientName8(clientPackageName);
+
+    int originalClientPid = 0;
+
+    ALOGI("CameraService::connect call (PID %d \"%s\", camera ID %s) for HAL version %s and "
+            "Camera API version %d", clientPid, clientName8.string(), cameraId.string(),
+            (halVersion == -1) ? "default" : std::to_string(halVersion).c_str(),
+            static_cast<int>(effectiveApiLevel));
+
+    sp<CLIENT> client = nullptr;
+    {
+        // Acquire mServiceLock and prevent other clients from connecting
+        std::unique_ptr<AutoConditionLock> lock =
+                AutoConditionLock::waitAndAcquire(mServiceLockWrapper, DEFAULT_CONNECT_TIMEOUT_NS);
+
+        if (lock == nullptr) {
+            ALOGE("CameraService::connect (PID %d) rejected (too many other clients connecting)."
+                    , clientPid);
+            return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
+                    "Cannot open camera %s for \"%s\" (PID %d): Too many other clients connecting",
+                    cameraId.string(), clientName8.string(), clientPid);
+        }
+
+        // Enforce client permissions and do basic sanity checks
+        if(!(ret = validateConnectLocked(cameraId, clientName8,
+                /*inout*/clientUid, /*inout*/clientPid, /*out*/originalClientPid)).isOk()) {
+            return ret;
+        }
+
+        // Check the shim parameters after acquiring lock, if they have already been updated and
+        // we were doing a shim update, return immediately
+        if (shimUpdateOnly) {
+            auto cameraState = getCameraState(cameraId);
+            if (cameraState != nullptr) {
+                if (!cameraState->getShimParams().isEmpty()) return ret;
+            }
+        }
+
+        status_t err;
+
+        sp<BasicClient> clientTmp = nullptr;
+        std::shared_ptr<resource_policy::ClientDescriptor<String8, sp<BasicClient>>> partial;
+        if ((err = handleEvictionsLocked(cameraId, originalClientPid, effectiveApiLevel,
+                IInterface::asBinder(cameraCb), clientName8, /*out*/&clientTmp,
+                /*out*/&partial)) != NO_ERROR) {
+            switch (err) {
+                case -ENODEV:
+                    return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
+                            "No camera device with ID \"%s\" currently available",
+                            cameraId.string());
+                case -EBUSY:
+                    return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
+                            "Higher-priority client using camera, ID \"%s\" currently unavailable",
+                            cameraId.string());
+                default:
+                    return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
+                            "Unexpected error %s (%d) opening camera \"%s\"",
+                            strerror(-err), err, cameraId.string());
+            }
+        }
+
+        if (clientTmp.get() != nullptr) {
+            // Handle special case for API1 MediaRecorder where the existing client is returned
+            device = static_cast<CLIENT*>(clientTmp.get());
+            return ret;
+        }
+
+        // give flashlight a chance to close devices if necessary.
+        mFlashlight->prepareDeviceOpen(cameraId);
+
+        int facing = -1;
+        int deviceVersion = getDeviceVersion(cameraId, /*out*/&facing);
+        if (facing == -1) {
+            ALOGE("%s: Unable to get camera device \"%s\"  facing", __FUNCTION__, cameraId.string());
+            return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
+                    "Unable to get camera device \"%s\" facing", cameraId.string());
+        }
+
+        sp<BasicClient> tmp = nullptr;
+        if(!(ret = makeClient(this, cameraCb, clientPackageName, cameraId, facing, clientPid,
+                clientUid, getpid(), legacyMode, halVersion, deviceVersion, effectiveApiLevel,
+                /*out*/&tmp)).isOk()) {
+            return ret;
+        }
+        client = static_cast<CLIENT*>(tmp.get());
+
+        LOG_ALWAYS_FATAL_IF(client.get() == nullptr, "%s: CameraService in invalid state",
+                __FUNCTION__);
+
+        err = client->initialize(mCameraProviderManager);
+        if (err != OK) {
+            ALOGE("%s: Could not initialize client from HAL.", __FUNCTION__);
+            // Errors could be from the HAL module open call or from AppOpsManager
+            switch(err) {
+                case BAD_VALUE:
+                    return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
+                            "Illegal argument to HAL module for camera \"%s\"", cameraId.string());
+                case -EBUSY:
+                    return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
+                            "Camera \"%s\" is already open", cameraId.string());
+                case -EUSERS:
+                    return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
+                            "Too many cameras already open, cannot open camera \"%s\"",
+                            cameraId.string());
+                case PERMISSION_DENIED:
+                    return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
+                            "No permission to open camera \"%s\"", cameraId.string());
+                case -EACCES:
+                    return STATUS_ERROR_FMT(ERROR_DISABLED,
+                            "Camera \"%s\" disabled by policy", cameraId.string());
+                case -ENODEV:
+                default:
+                    return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
+                            "Failed to initialize camera \"%s\": %s (%d)", cameraId.string(),
+                            strerror(-err), err);
+            }
+        }
+
+        // Update shim paremeters for legacy clients
+        if (effectiveApiLevel == API_1) {
+            // Assume we have always received a Client subclass for API1
+            sp<Client> shimClient = reinterpret_cast<Client*>(client.get());
+            String8 rawParams = shimClient->getParameters();
+            CameraParameters params(rawParams);
+
+            auto cameraState = getCameraState(cameraId);
+            if (cameraState != nullptr) {
+                cameraState->setShimParams(params);
+            } else {
+                ALOGE("%s: Cannot update shim parameters for camera %s, no such device exists.",
+                        __FUNCTION__, cameraId.string());
+            }
+        }
+
+        if (shimUpdateOnly) {
+            // If only updating legacy shim parameters, immediately disconnect client
+            mServiceLock.unlock();
+            client->disconnect();
+            mServiceLock.lock();
+        } else {
+            // Otherwise, add client to active clients list
+            finishConnectLocked(client, partial);
+        }
+    } // lock is destroyed, allow further connect calls
+
+    // Important: release the mutex here so the client can call back into the service from its
+    // destructor (can be at the end of the call)
+    device = client;
+    return ret;
+}
+
 Status CameraService::setTorchMode(const String16& cameraId, bool enabled,
         const sp<IBinder>& clientBinder) {
+    Mutex::Autolock lock(mServiceLock);
 
     ATRACE_CALL();
     if (enabled && clientBinder == nullptr) {
@@ -1368,17 +1450,17 @@
                 "Camera ID \"%s\" is a not valid camera ID", id.string());
     }
 
-    int32_t cameraStatus = state->getStatus();
-    if (cameraStatus != ICameraServiceListener::STATUS_PRESENT &&
-            cameraStatus != ICameraServiceListener::STATUS_NOT_AVAILABLE) {
-        ALOGE("%s: camera id is invalid %s", __FUNCTION__, id.string());
+    StatusInternal cameraStatus = state->getStatus();
+    if (cameraStatus != StatusInternal::PRESENT &&
+            cameraStatus != StatusInternal::NOT_AVAILABLE) {
+        ALOGE("%s: camera id is invalid %s, status %d", __FUNCTION__, id.string(), (int)cameraStatus);
         return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
                 "Camera ID \"%s\" is a not valid camera ID", id.string());
     }
 
     {
         Mutex::Autolock al(mTorchStatusMutex);
-        int32_t status;
+        TorchModeStatus status;
         status_t err = getTorchStatusLocked(id, &status);
         if (err != OK) {
             if (err == NAME_NOT_FOUND) {
@@ -1392,8 +1474,8 @@
                     strerror(-err), err);
         }
 
-        if (status == ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE) {
-            if (cameraStatus == ICameraServiceListener::STATUS_NOT_AVAILABLE) {
+        if (status == TorchModeStatus::NOT_AVAILABLE) {
+            if (cameraStatus == StatusInternal::NOT_AVAILABLE) {
                 ALOGE("%s: torch mode of camera %s is not available because "
                         "camera is in use", __FUNCTION__, id.string());
                 return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
@@ -1482,7 +1564,9 @@
     return Status::ok();
 }
 
-Status CameraService::addListener(const sp<ICameraServiceListener>& listener) {
+Status CameraService::addListener(const sp<ICameraServiceListener>& listener,
+        /*out*/
+        std::vector<hardware::CameraStatus> *cameraStatuses) {
     ATRACE_CALL();
 
     ALOGV("%s: Add listener %p", __FUNCTION__, listener.get());
@@ -1507,25 +1591,23 @@
         mListenerList.push_back(listener);
     }
 
-
-    /* Immediately signal current status to this listener only */
+    /* Collect current devices and status */
     {
         Mutex::Autolock lock(mCameraStatesLock);
         for (auto& i : mCameraStates) {
-            // TODO: Update binder to use String16 for camera IDs and remove;
-            int id = cameraIdToInt(i.first);
-            if (id == -1) continue;
-
-            listener->onStatusChanged(i.second->getStatus(), id);
+            cameraStatuses->emplace_back(i.first, mapToInterface(i.second->getStatus()));
         }
     }
 
-    /* Immediately signal current torch status to this listener only */
+    /*
+     * Immediately signal current torch status to this listener only
+     * This may be a subset of all the devices, so don't include it in the response directly
+     */
     {
         Mutex::Autolock al(mTorchStatusMutex);
         for (size_t i = 0; i < mTorchStatusMap.size(); i++ ) {
             String16 id = String16(mTorchStatusMap.keyAt(i).string());
-            listener->onTorchStatusChanged(mTorchStatusMap.valueAt(i), id);
+            listener->onTorchStatusChanged(mapToInterface(mTorchStatusMap.valueAt(i)), id);
         }
     }
 
@@ -1586,10 +1668,13 @@
     return ret;
 }
 
-Status CameraService::supportsCameraApi(int cameraId, int apiVersion, bool *isSupported) {
+Status CameraService::supportsCameraApi(const String16& cameraId, int apiVersion,
+        /*out*/ bool *isSupported) {
     ATRACE_CALL();
 
-    ALOGV("%s: for camera ID = %d", __FUNCTION__, cameraId);
+    const String8 id = String8(cameraId);
+
+    ALOGV("%s: for camera ID = %s", __FUNCTION__, id.string());
 
     switch (apiVersion) {
         case API_VERSION_1:
@@ -1601,38 +1686,36 @@
             return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
 
-    int facing = -1;
-    int deviceVersion = getDeviceVersion(cameraId, &facing);
-
+    int deviceVersion = getDeviceVersion(id);
     switch(deviceVersion) {
         case CAMERA_DEVICE_API_VERSION_1_0:
         case CAMERA_DEVICE_API_VERSION_3_0:
         case CAMERA_DEVICE_API_VERSION_3_1:
             if (apiVersion == API_VERSION_2) {
-                ALOGV("%s: Camera id %d uses HAL version %d <3.2, doesn't support api2 without shim",
-                        __FUNCTION__, cameraId, deviceVersion);
+                ALOGV("%s: Camera id %s uses HAL version %d <3.2, doesn't support api2 without shim",
+                        __FUNCTION__, id.string(), deviceVersion);
                 *isSupported = false;
             } else { // if (apiVersion == API_VERSION_1) {
-                ALOGV("%s: Camera id %d uses older HAL before 3.2, but api1 is always supported",
-                        __FUNCTION__, cameraId);
+                ALOGV("%s: Camera id %s uses older HAL before 3.2, but api1 is always supported",
+                        __FUNCTION__, id.string());
                 *isSupported = true;
             }
             break;
         case CAMERA_DEVICE_API_VERSION_3_2:
         case CAMERA_DEVICE_API_VERSION_3_3:
         case CAMERA_DEVICE_API_VERSION_3_4:
-            ALOGV("%s: Camera id %d uses HAL3.2 or newer, supports api1/api2 directly",
-                    __FUNCTION__, cameraId);
+            ALOGV("%s: Camera id %s uses HAL3.2 or newer, supports api1/api2 directly",
+                    __FUNCTION__, id.string());
             *isSupported = true;
             break;
         case -1: {
-            String8 msg = String8::format("Unknown camera ID %d", cameraId);
+            String8 msg = String8::format("Unknown camera ID %s", id.string());
             ALOGE("%s: %s", __FUNCTION__, msg.string());
             return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
         }
         default: {
-            String8 msg = String8::format("Unknown device version %d for device %d",
-                    deviceVersion, cameraId);
+            String8 msg = String8::format("Unknown device version %x for device %s",
+                    deviceVersion, id.string());
             ALOGE("%s: %s", __FUNCTION__, msg.string());
             return STATUS_ERROR(ERROR_INVALID_OPERATION, msg.string());
         }
@@ -1702,81 +1785,6 @@
     return ret;
 }
 
-
-/**
- * Check camera capabilities, such as support for basic color operation
- * Also check that the device HAL version is still in support
- */
-int CameraService::checkCameraCapabilities(int id, camera_info info, int *latestStrangeCameraId) {
-    // device_version undefined in CAMERA_MODULE_API_VERSION_1_0,
-    // All CAMERA_MODULE_API_VERSION_1_0 devices are backward-compatible
-    if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_0) {
-        // Verify the device version is in the supported range
-        switch (info.device_version) {
-            case CAMERA_DEVICE_API_VERSION_1_0:
-            case CAMERA_DEVICE_API_VERSION_3_0:
-            case CAMERA_DEVICE_API_VERSION_3_1:
-            case CAMERA_DEVICE_API_VERSION_3_2:
-            case CAMERA_DEVICE_API_VERSION_3_3:
-            case CAMERA_DEVICE_API_VERSION_3_4:
-                // in support
-                break;
-            case CAMERA_DEVICE_API_VERSION_2_0:
-            case CAMERA_DEVICE_API_VERSION_2_1:
-                // no longer supported
-            default:
-                ALOGE("%s: Device %d has HAL version %x, which is not supported",
-                        __FUNCTION__, id, info.device_version);
-                String8 msg = String8::format(
-                        "Unsupported device HAL version %x for device %d",
-                        info.device_version, id);
-                logServiceError(msg.string(), NO_INIT);
-                return NO_INIT;
-        }
-    }
-
-    // Assume all devices pre-v3.3 are backward-compatible
-    bool isBackwardCompatible = true;
-    if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_0
-            && info.device_version >= CAMERA_DEVICE_API_VERSION_3_3) {
-        isBackwardCompatible = false;
-        status_t res;
-        camera_metadata_ro_entry_t caps;
-        res = find_camera_metadata_ro_entry(
-            info.static_camera_characteristics,
-            ANDROID_REQUEST_AVAILABLE_CAPABILITIES,
-            &caps);
-        if (res != 0) {
-            ALOGW("%s: Unable to find camera capabilities for camera device %d",
-                    __FUNCTION__, id);
-            caps.count = 0;
-        }
-        for (size_t i = 0; i < caps.count; i++) {
-            if (caps.data.u8[i] ==
-                    ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE) {
-                isBackwardCompatible = true;
-                break;
-            }
-        }
-    }
-
-    if (!isBackwardCompatible) {
-        mNumberOfNormalCameras--;
-        *latestStrangeCameraId = id;
-    } else {
-        if (id > *latestStrangeCameraId) {
-            ALOGE("%s: Normal camera ID %d higher than strange camera ID %d. "
-                    "This is not allowed due backward-compatibility requirements",
-                    __FUNCTION__, id, *latestStrangeCameraId);
-            logServiceError("Invalid order of camera devices", NO_INIT);
-            mNumberOfCameras = 0;
-            mNumberOfNormalCameras = 0;
-            return NO_INIT;
-        }
-    }
-    return OK;
-}
-
 std::shared_ptr<CameraService::CameraState> CameraService::getCameraState(
         const String8& cameraId) const {
     std::shared_ptr<CameraState> state;
@@ -1853,9 +1861,11 @@
 
         // Log the clients evicted
         logEvent(String8::format("EVICT device %s client held by package %s (PID %"
-                PRId32 ", priority %" PRId32 ")\n   - Evicted due to user switch.",
-                i->getKey().string(), String8{clientSp->getPackageName()}.string(),
-                i->getOwnerId(), i->getPriority()));
+                PRId32 ", score %" PRId32 ", state %" PRId32 ")\n   - Evicted due"
+                " to user switch.", i->getKey().string(),
+                String8{clientSp->getPackageName()}.string(),
+                i->getOwnerId(), i->getPriority().getScore(),
+                i->getPriority().getState()));
 
     }
 
@@ -1907,8 +1917,11 @@
         const std::set<userid_t>& newUserIds) {
     String8 newUsers = toString(newUserIds);
     String8 oldUsers = toString(oldUserIds);
+    if (oldUsers.size() == 0) {
+        oldUsers = "<None>";
+    }
     // Log the new and old users
-    logEvent(String8::format("USER_SWITCH previous allowed users: %s , current allowed users: %s",
+    logEvent(String8::format("USER_SWITCH previous allowed user IDs: %s, current allowed user IDs: %s",
             oldUsers.string(), newUsers.string()));
 }
 
@@ -2017,24 +2030,25 @@
 CameraService::Client::Client(const sp<CameraService>& cameraService,
         const sp<ICameraClient>& cameraClient,
         const String16& clientPackageName,
-        int cameraId, int cameraFacing,
+        const String8& cameraIdStr, int cameraFacing,
         int clientPid, uid_t clientUid,
         int servicePid) :
         CameraService::BasicClient(cameraService,
                 IInterface::asBinder(cameraClient),
                 clientPackageName,
-                cameraId, cameraFacing,
+                cameraIdStr, cameraFacing,
                 clientPid, clientUid,
-                servicePid)
+                servicePid),
+        mCameraId(CameraService::cameraIdToInt(cameraIdStr))
 {
     int callingPid = getCallingPid();
-    LOG1("Client::Client E (pid %d, id %d)", callingPid, cameraId);
+    LOG1("Client::Client E (pid %d, id %d)", callingPid, mCameraId);
 
     mRemoteCallback = cameraClient;
 
     cameraService->loadSound();
 
-    LOG1("Client::Client X (pid %d, id %d)", callingPid, cameraId);
+    LOG1("Client::Client X (pid %d, id %d)", callingPid, mCameraId);
 }
 
 // tear down the client
@@ -2042,26 +2056,28 @@
     ALOGV("~Client");
     mDestructionStarted = true;
 
-    mCameraService->releaseSound();
+    sCameraService->releaseSound();
     // unconditionally disconnect. function is idempotent
     Client::disconnect();
 }
 
+sp<CameraService> CameraService::BasicClient::BasicClient::sCameraService;
+
 CameraService::BasicClient::BasicClient(const sp<CameraService>& cameraService,
         const sp<IBinder>& remoteCallback,
         const String16& clientPackageName,
-        int cameraId, int cameraFacing,
+        const String8& cameraIdStr, int cameraFacing,
         int clientPid, uid_t clientUid,
         int servicePid):
-        mClientPackageName(clientPackageName), mDisconnected(false)
+        mCameraIdStr(cameraIdStr), mCameraFacing(cameraFacing),
+        mClientPackageName(clientPackageName), mClientPid(clientPid), mClientUid(clientUid),
+        mServicePid(servicePid),
+        mDisconnected(false),
+        mRemoteBinder(remoteCallback)
 {
-    mCameraService = cameraService;
-    mRemoteBinder = remoteCallback;
-    mCameraId = cameraId;
-    mCameraFacing = cameraFacing;
-    mClientPid = clientPid;
-    mClientUid = clientUid;
-    mServicePid = servicePid;
+    if (sCameraService == nullptr) {
+        sCameraService = cameraService;
+    }
     mOpsActive = false;
     mDestructionStarted = false;
 
@@ -2109,19 +2125,20 @@
     }
     mDisconnected = true;
 
-    mCameraService->removeByClient(this);
-    mCameraService->logDisconnected(String8::format("%d", mCameraId), mClientPid,
+    sCameraService->removeByClient(this);
+    sCameraService->logDisconnected(mCameraIdStr, mClientPid,
             String8(mClientPackageName));
 
     sp<IBinder> remote = getRemote();
     if (remote != nullptr) {
-        remote->unlinkToDeath(mCameraService);
+        remote->unlinkToDeath(sCameraService);
     }
 
     finishCameraOps();
     // Notify flashlight that a camera device is closed.
-    mCameraService->mFlashlight->deviceClosed(String8::format("%d", mCameraId));
-    ALOGI("%s: Disconnected client for camera %d for PID %d", __FUNCTION__, mCameraId, mClientPid);
+    sCameraService->mFlashlight->deviceClosed(mCameraIdStr);
+    ALOGI("%s: Disconnected client for camera %s for PID %d", __FUNCTION__, mCameraIdStr.string(),
+            mClientPid);
 
     // client shouldn't be able to call into us anymore
     mClientPid = 0;
@@ -2173,14 +2190,14 @@
             mClientUid, mClientPackageName);
 
     if (res == AppOpsManager::MODE_ERRORED) {
-        ALOGI("Camera %d: Access for \"%s\" has been revoked",
-                mCameraId, String8(mClientPackageName).string());
+        ALOGI("Camera %s: Access for \"%s\" has been revoked",
+                mCameraIdStr.string(), String8(mClientPackageName).string());
         return PERMISSION_DENIED;
     }
 
     if (res == AppOpsManager::MODE_IGNORED) {
-        ALOGI("Camera %d: Access for \"%s\" has been restricted",
-                mCameraId, String8(mClientPackageName).string());
+        ALOGI("Camera %s: Access for \"%s\" has been restricted",
+                mCameraIdStr.string(), String8(mClientPackageName).string());
         // Return the same error as for device policy manager rejection
         return -EACCES;
     }
@@ -2188,12 +2205,11 @@
     mOpsActive = true;
 
     // Transition device availability listeners from PRESENT -> NOT_AVAILABLE
-    mCameraService->updateStatus(ICameraServiceListener::STATUS_NOT_AVAILABLE,
-            String8::format("%d", mCameraId));
+    sCameraService->updateStatus(StatusInternal::NOT_AVAILABLE, mCameraIdStr);
 
     // Transition device state to OPEN
-    mCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_OPEN,
-            String8::format("%d", mCameraId));
+    sCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_OPEN,
+            mCameraIdStr);
 
     return OK;
 }
@@ -2208,16 +2224,16 @@
                 mClientPackageName);
         mOpsActive = false;
 
-        std::initializer_list<int32_t> rejected = {ICameraServiceListener::STATUS_NOT_PRESENT,
-                ICameraServiceListener::STATUS_ENUMERATING};
+        std::initializer_list<StatusInternal> rejected = {StatusInternal::PRESENT,
+                StatusInternal::ENUMERATING};
 
         // Transition to PRESENT if the camera is not in either of the rejected states
-        mCameraService->updateStatus(ICameraServiceListener::STATUS_PRESENT,
-                String8::format("%d", mCameraId), rejected);
+        sCameraService->updateStatus(StatusInternal::PRESENT,
+                mCameraIdStr, rejected);
 
         // Transition device state to CLOSED
-        mCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_CLOSED,
-                String8::format("%d", mCameraId));
+        sCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_CLOSED,
+                mCameraIdStr);
     }
     // Always stop watching, even if no camera op is active
     if (mOpsCallback != NULL) {
@@ -2249,7 +2265,7 @@
             "UNKNOWN");
 
     if (res != AppOpsManager::MODE_ALLOWED) {
-        ALOGI("Camera %d: Access for \"%s\" revoked", mCameraId,
+        ALOGI("Camera %s: Access for \"%s\" revoked", mCameraIdStr.string(),
                 myName.string());
         // Reset the client PID to allow server-initiated disconnect,
         // and to prevent further calls by client.
@@ -2262,17 +2278,6 @@
 
 // ----------------------------------------------------------------------------
 
-// Provide client strong pointer for callbacks.
-sp<CameraService::Client> CameraService::Client::getClientFromCookie(void* user) {
-    String8 cameraId = String8::format("%d", (int)(intptr_t) user);
-    auto clientDescriptor = gCameraService->mActiveClientManager.get(cameraId);
-    if (clientDescriptor != nullptr) {
-        return sp<Client>{
-                static_cast<Client*>(clientDescriptor->getValue().get())};
-    }
-    return sp<Client>{nullptr};
-}
-
 void CameraService::Client::notifyError(int32_t errorCode,
         const CaptureResultExtras& resultExtras) {
     (void) errorCode;
@@ -2312,11 +2317,11 @@
 
 CameraService::CameraState::CameraState(const String8& id, int cost,
         const std::set<String8>& conflicting) : mId(id),
-        mStatus(ICameraServiceListener::STATUS_PRESENT), mCost(cost), mConflicting(conflicting) {}
+        mStatus(StatusInternal::PRESENT), mCost(cost), mConflicting(conflicting) {}
 
 CameraService::CameraState::~CameraState() {}
 
-int32_t CameraService::CameraState::getStatus() const {
+CameraService::StatusInternal CameraService::CameraState::getStatus() const {
     Mutex::Autolock lock(mStatusLock);
     return mStatus;
 }
@@ -2348,7 +2353,7 @@
 void CameraService::ClientEventListener::onClientAdded(
         const resource_policy::ClientDescriptor<String8,
         sp<CameraService::BasicClient>>& descriptor) {
-    auto basicClient = descriptor.getValue();
+    const auto& basicClient = descriptor.getValue();
     if (basicClient.get() != nullptr) {
         BatteryNotifier& notifier(BatteryNotifier::getInstance());
         notifier.noteStartCamera(descriptor.getKey(),
@@ -2359,7 +2364,7 @@
 void CameraService::ClientEventListener::onClientRemoved(
         const resource_policy::ClientDescriptor<String8,
         sp<CameraService::BasicClient>>& descriptor) {
-    auto basicClient = descriptor.getValue();
+    const auto& basicClient = descriptor.getValue();
     if (basicClient.get() != nullptr) {
         BatteryNotifier& notifier(BatteryNotifier::getInstance());
         notifier.noteStopCamera(descriptor.getKey(),
@@ -2396,7 +2401,8 @@
         String8 key = i->getKey();
         int32_t cost = i->getCost();
         int32_t pid = i->getOwnerId();
-        int32_t priority = i->getPriority();
+        int32_t score = i->getPriority().getScore();
+        int32_t state = i->getPriority().getState();
         auto conflicting = i->getConflicting();
         auto clientSp = i->getValue();
         String8 packageName;
@@ -2406,8 +2412,8 @@
             uid_t clientUid = clientSp->getClientUid();
             clientUserId = multiuser_get_user_id(clientUid);
         }
-        ret.appendFormat("\n(Camera ID: %s, Cost: %" PRId32 ", PID: %" PRId32 ", Priority: %"
-                PRId32 ", ", key.string(), cost, pid, priority);
+        ret.appendFormat("\n(Camera ID: %s, Cost: %" PRId32 ", PID: %" PRId32 ", Score: %"
+                PRId32 ", State: %" PRId32, key.string(), cost, pid, score, state);
 
         if (clientSp.get() != nullptr) {
             ret.appendFormat("User Id: %d, ", clientUserId);
@@ -2429,16 +2435,18 @@
 
 CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
         const String8& key, const sp<BasicClient>& value, int32_t cost,
-        const std::set<String8>& conflictingKeys, int32_t priority, int32_t ownerId) {
+        const std::set<String8>& conflictingKeys, int32_t score, int32_t ownerId,
+        int32_t state) {
 
     return std::make_shared<resource_policy::ClientDescriptor<String8, sp<BasicClient>>>(
-            key, value, cost, conflictingKeys, priority, ownerId);
+            key, value, cost, conflictingKeys, score, ownerId, state);
 }
 
 CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
         const sp<BasicClient>& value, const CameraService::DescriptorPtr& partial) {
     return makeClientDescriptor(partial->getKey(), value, partial->getCost(),
-            partial->getConflicting(), partial->getPriority(), partial->getOwnerId());
+            partial->getConflicting(), partial->getPriority().getScore(),
+            partial->getOwnerId(), partial->getPriority().getState());
 }
 
 // ----------------------------------------------------------------------------
@@ -2462,175 +2470,122 @@
 status_t CameraService::dump(int fd, const Vector<String16>& args) {
     ATRACE_CALL();
 
-    String8 result("Dump of the Camera Service:\n");
     if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
-        result = result.format("Permission Denial: "
-                "can't dump CameraService from pid=%d, uid=%d\n",
+        dprintf(fd, "Permission Denial: can't dump CameraService from pid=%d, uid=%d\n",
                 getCallingPid(),
                 getCallingUid());
-        write(fd, result.string(), result.size());
-    } else {
-        bool locked = tryLock(mServiceLock);
-        // failed to lock - CameraService is probably deadlocked
-        if (!locked) {
-            result.append("CameraService may be deadlocked\n");
-            write(fd, result.string(), result.size());
-        }
+        return NO_ERROR;
+    }
+    bool locked = tryLock(mServiceLock);
+    // failed to lock - CameraService is probably deadlocked
+    if (!locked) {
+        dprintf(fd, "!! CameraService may be deadlocked !!\n");
+    }
 
-        bool hasClient = false;
-        if (!mModule) {
-            result = String8::format("No camera module available!\n");
-            write(fd, result.string(), result.size());
+    if (!mInitialized) {
+        dprintf(fd, "!! No camera HAL available !!\n");
 
-            // Dump event log for error information
-            dumpEventLog(fd);
-
-            if (locked) mServiceLock.unlock();
-            return NO_ERROR;
-        }
-
-        result = String8::format("Camera module HAL API version: 0x%x\n", mModule->getHalApiVersion());
-        result.appendFormat("Camera module API version: 0x%x\n", mModule->getModuleApiVersion());
-        result.appendFormat("Camera module name: %s\n", mModule->getModuleName());
-        result.appendFormat("Camera module author: %s\n", mModule->getModuleAuthor());
-        result.appendFormat("Number of camera devices: %d\n", mNumberOfCameras);
-        result.appendFormat("Number of normal camera devices: %d\n", mNumberOfNormalCameras);
-        String8 activeClientString = mActiveClientManager.toString();
-        result.appendFormat("Active Camera Clients:\n%s", activeClientString.string());
-        result.appendFormat("Allowed users:\n%s\n", toString(mAllowedUsers).string());
-
-        sp<VendorTagDescriptor> desc = VendorTagDescriptor::getGlobalVendorTagDescriptor();
-        if (desc == NULL) {
-            result.appendFormat("Vendor tags left unimplemented.\n");
-        } else {
-            result.appendFormat("Vendor tag definitions:\n");
-        }
-
-        write(fd, result.string(), result.size());
-
-        if (desc != NULL) {
-            desc->dump(fd, /*verbosity*/2, /*indentation*/4);
-        }
-
+        // Dump event log for error information
         dumpEventLog(fd);
 
-        bool stateLocked = tryLock(mCameraStatesLock);
-        if (!stateLocked) {
-            result = String8::format("CameraStates in use, may be deadlocked\n");
-            write(fd, result.string(), result.size());
+        if (locked) mServiceLock.unlock();
+        return NO_ERROR;
+    }
+    dprintf(fd, "\n== Service global info: ==\n\n");
+    dprintf(fd, "Number of camera devices: %d\n", mNumberOfCameras);
+    dprintf(fd, "Number of normal camera devices: %d\n", mNumberOfNormalCameras);
+    String8 activeClientString = mActiveClientManager.toString();
+    dprintf(fd, "Active Camera Clients:\n%s", activeClientString.string());
+    dprintf(fd, "Allowed user IDs: %s\n", toString(mAllowedUsers).string());
+
+    dumpEventLog(fd);
+
+    bool stateLocked = tryLock(mCameraStatesLock);
+    if (!stateLocked) {
+        dprintf(fd, "CameraStates in use, may be deadlocked\n");
+    }
+
+    for (auto& state : mCameraStates) {
+        String8 cameraId = state.first;
+
+        dprintf(fd, "== Camera device %s dynamic info: ==\n", cameraId.string());
+
+        CameraParameters p = state.second->getShimParams();
+        if (!p.isEmpty()) {
+            dprintf(fd, "  Camera1 API shim is using parameters:\n        ");
+            p.dump(fd, args);
         }
 
-        for (auto& state : mCameraStates) {
-            String8 cameraId = state.first;
-            result = String8::format("Camera %s information:\n", cameraId.string());
-            camera_info info;
-
-            // TODO: Change getCameraInfo + HAL to use String cameraIds
-            status_t rc = mModule->getCameraInfo(cameraIdToInt(cameraId), &info);
-            if (rc != OK) {
-                result.appendFormat("  Error reading static information!\n");
-                write(fd, result.string(), result.size());
-            } else {
-                result.appendFormat("  Facing: %s\n",
-                        info.facing == CAMERA_FACING_BACK ? "BACK" :
-                                info.facing == CAMERA_FACING_FRONT ? "FRONT" : "EXTERNAL");
-                result.appendFormat("  Orientation: %d\n", info.orientation);
-                int deviceVersion;
-                if (mModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_0) {
-                    deviceVersion = CAMERA_DEVICE_API_VERSION_1_0;
-                } else {
-                    deviceVersion = info.device_version;
-                }
-
-                auto conflicting = state.second->getConflicting();
-                result.appendFormat("  Resource Cost: %d\n", state.second->getCost());
-                result.appendFormat("  Conflicting Devices:");
-                for (auto& id : conflicting) {
-                    result.appendFormat(" %s", id.string());
-                }
-                if (conflicting.size() == 0) {
-                    result.appendFormat(" NONE");
-                }
-                result.appendFormat("\n");
-
-                result.appendFormat("  Device version: %#x\n", deviceVersion);
-                if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_0) {
-                    result.appendFormat("  Device static metadata:\n");
-                    write(fd, result.string(), result.size());
-                    dump_indented_camera_metadata(info.static_camera_characteristics,
-                            fd, /*verbosity*/2, /*indentation*/4);
-                } else {
-                    write(fd, result.string(), result.size());
-                }
-
-                CameraParameters p = state.second->getShimParams();
-                if (!p.isEmpty()) {
-                    result = String8::format("  Camera1 API shim is using parameters:\n        ");
-                    write(fd, result.string(), result.size());
-                    p.dump(fd, args);
-                }
-            }
-
-            auto clientDescriptor = mActiveClientManager.get(cameraId);
-            if (clientDescriptor == nullptr) {
-                result = String8::format("  Device %s is closed, no client instance\n",
-                        cameraId.string());
-                write(fd, result.string(), result.size());
-                continue;
-            }
-            hasClient = true;
-            result = String8::format("  Device %s is open. Client instance dump:\n\n",
+        auto clientDescriptor = mActiveClientManager.get(cameraId);
+        if (clientDescriptor != nullptr) {
+            dprintf(fd, "  Device %s is open. Client instance dump:\n",
                     cameraId.string());
-            result.appendFormat("Client priority level: %d\n", clientDescriptor->getPriority());
-            result.appendFormat("Client PID: %d\n", clientDescriptor->getOwnerId());
+            dprintf(fd, "    Client priority score: %d state: %d\n",
+                    clientDescriptor->getPriority().getScore(),
+                    clientDescriptor->getPriority().getState());
+            dprintf(fd, "    Client PID: %d\n", clientDescriptor->getOwnerId());
 
             auto client = clientDescriptor->getValue();
-            result.appendFormat("Client package: %s\n",
+            dprintf(fd, "    Client package: %s\n",
                     String8(client->getPackageName()).string());
-            write(fd, result.string(), result.size());
 
             client->dumpClient(fd, args);
+        } else {
+            dprintf(fd, "  Device %s is closed, no client instance\n",
+                    cameraId.string());
         }
 
-        if (stateLocked) mCameraStatesLock.unlock();
+    }
 
-        if (!hasClient) {
-            result = String8::format("\nNo active camera clients yet.\n");
-            write(fd, result.string(), result.size());
+    if (stateLocked) mCameraStatesLock.unlock();
+
+    if (locked) mServiceLock.unlock();
+
+    mCameraProviderManager->dump(fd, args);
+
+    dprintf(fd, "\n== Vendor tags: ==\n\n");
+
+    sp<VendorTagDescriptor> desc = VendorTagDescriptor::getGlobalVendorTagDescriptor();
+    if (desc == NULL) {
+        sp<VendorTagDescriptorCache> cache =
+                VendorTagDescriptorCache::getGlobalVendorTagCache();
+        if (cache == NULL) {
+            dprintf(fd, "No vendor tags.\n");
+        } else {
+            cache->dump(fd, /*verbosity*/2, /*indentation*/2);
         }
+    } else {
+        desc->dump(fd, /*verbosity*/2, /*indentation*/2);
+    }
 
-        if (locked) mServiceLock.unlock();
+    // Dump camera traces if there were any
+    dprintf(fd, "\n");
+    camera3::CameraTraces::dump(fd, args);
 
-        // Dump camera traces if there were any
-        write(fd, "\n", 1);
-        camera3::CameraTraces::dump(fd, args);
-
-        // Process dump arguments, if any
-        int n = args.size();
-        String16 verboseOption("-v");
-        String16 unreachableOption("--unreachable");
-        for (int i = 0; i < n; i++) {
-            if (args[i] == verboseOption) {
-                // change logging level
-                if (i + 1 >= n) continue;
-                String8 levelStr(args[i+1]);
-                int level = atoi(levelStr.string());
-                result = String8::format("\nSetting log level to %d.\n", level);
-                setLogLevel(level);
-                write(fd, result.string(), result.size());
-            } else if (args[i] == unreachableOption) {
-                // Dump memory analysis
-                // TODO - should limit be an argument parameter?
-                UnreachableMemoryInfo info;
-                bool success = GetUnreachableMemory(info, /*limit*/ 10000);
-                if (!success) {
-                    dprintf(fd, "\nUnable to dump unreachable memory. "
-                            "Try disabling SELinux enforcement.\n");
-                } else {
-                    dprintf(fd, "\nDumping unreachable memory:\n");
-                    std::string s = info.ToString(/*log_contents*/ true);
-                    write(fd, s.c_str(), s.size());
-                }
+    // Process dump arguments, if any
+    int n = args.size();
+    String16 verboseOption("-v");
+    String16 unreachableOption("--unreachable");
+    for (int i = 0; i < n; i++) {
+        if (args[i] == verboseOption) {
+            // change logging level
+            if (i + 1 >= n) continue;
+            String8 levelStr(args[i+1]);
+            int level = atoi(levelStr.string());
+            dprintf(fd, "\nSetting log level to %d.\n", level);
+            setLogLevel(level);
+        } else if (args[i] == unreachableOption) {
+            // Dump memory analysis
+            // TODO - should limit be an argument parameter?
+            UnreachableMemoryInfo info;
+            bool success = GetUnreachableMemory(info, /*limit*/ 10000);
+            if (!success) {
+                dprintf(fd, "\n== Unable to dump unreachable memory. "
+                        "Try disabling SELinux enforcement. ==\n");
+            } else {
+                dprintf(fd, "\n== Dumping unreachable memory: ==\n");
+                std::string s = info.ToString(/*log_contents*/ true);
+                write(fd, s.c_str(), s.size());
             }
         }
     }
@@ -2638,21 +2593,19 @@
 }
 
 void CameraService::dumpEventLog(int fd) {
-    String8 result = String8("\nPrior client events (most recent at top):\n");
+    dprintf(fd, "\n== Camera service events log (most recent at top): ==\n");
 
     Mutex::Autolock l(mLogLock);
     for (const auto& msg : mEventLog) {
-        result.appendFormat("  %s\n", msg.string());
+        dprintf(fd, "  %s\n", msg.string());
     }
 
     if (mEventLog.size() == DEFAULT_EVENT_LOG_LENGTH) {
-        result.append("  ...\n");
+        dprintf(fd, "  ...\n");
     } else if (mEventLog.size() == 0) {
-        result.append("  [no events yet]\n");
+        dprintf(fd, "  [no events yet]\n");
     }
-    result.append("\n");
-
-    write(fd, result.string(), result.size());
+    dprintf(fd, "\n");
 }
 
 void CameraService::handleTorchClientBinderDied(const wp<IBinder> &who) {
@@ -2695,12 +2648,12 @@
             __FUNCTION__);
 }
 
-void CameraService::updateStatus(int32_t status, const String8& cameraId) {
+void CameraService::updateStatus(StatusInternal status, const String8& cameraId) {
     updateStatus(status, cameraId, {});
 }
 
-void CameraService::updateStatus(int32_t status, const String8& cameraId,
-        std::initializer_list<int32_t> rejectSourceStates) {
+void CameraService::updateStatus(StatusInternal status, const String8& cameraId,
+        std::initializer_list<StatusInternal> rejectSourceStates) {
     // Do not lock mServiceLock here or can get into a deadlock from
     // connect() -> disconnect -> updateStatus
 
@@ -2715,18 +2668,18 @@
     // Update the status for this camera state, then send the onStatusChangedCallbacks to each
     // of the listeners with both the mStatusStatus and mStatusListenerLock held
     state->updateStatus(status, cameraId, rejectSourceStates, [this]
-            (const String8& cameraId, int32_t status) {
+            (const String8& cameraId, StatusInternal status) {
 
-            if (status != ICameraServiceListener::STATUS_ENUMERATING) {
+            if (status != StatusInternal::ENUMERATING) {
                 // Update torch status if it has a flash unit.
                 Mutex::Autolock al(mTorchStatusMutex);
-                int32_t torchStatus;
+                TorchModeStatus torchStatus;
                 if (getTorchStatusLocked(cameraId, &torchStatus) !=
                         NAME_NOT_FOUND) {
-                    int32_t newTorchStatus =
-                            status == ICameraServiceListener::STATUS_PRESENT ?
-                            ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF :
-                            ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
+                    TorchModeStatus newTorchStatus =
+                            status == StatusInternal::PRESENT ?
+                            TorchModeStatus::AVAILABLE_OFF :
+                            TorchModeStatus::NOT_AVAILABLE;
                     if (torchStatus != newTorchStatus) {
                         onTorchStatusChangedLocked(cameraId, newTorchStatus);
                     }
@@ -2736,13 +2689,54 @@
             Mutex::Autolock lock(mStatusListenerLock);
 
             for (auto& listener : mListenerList) {
-                // TODO: Refactor status listeners to use strings for Camera IDs and remove this.
-                int id = cameraIdToInt(cameraId);
-                if (id != -1) listener->onStatusChanged(status, id);
+                listener->onStatusChanged(mapToInterface(status), String16(cameraId));
             }
         });
 }
 
+template<class Func>
+void CameraService::CameraState::updateStatus(StatusInternal status,
+        const String8& cameraId,
+        std::initializer_list<StatusInternal> rejectSourceStates,
+        Func onStatusUpdatedLocked) {
+    Mutex::Autolock lock(mStatusLock);
+    StatusInternal oldStatus = mStatus;
+    mStatus = status;
+
+    if (oldStatus == status) {
+        return;
+    }
+
+    ALOGV("%s: Status has changed for camera ID %s from %#x to %#x", __FUNCTION__,
+            cameraId.string(), oldStatus, status);
+
+    if (oldStatus == StatusInternal::NOT_PRESENT &&
+            (status != StatusInternal::PRESENT &&
+             status != StatusInternal::ENUMERATING)) {
+
+        ALOGW("%s: From NOT_PRESENT can only transition into PRESENT or ENUMERATING",
+                __FUNCTION__);
+        mStatus = oldStatus;
+        return;
+    }
+
+    /**
+     * Sometimes we want to conditionally do a transition.
+     * For example if a client disconnects, we want to go to PRESENT
+     * only if we weren't already in NOT_PRESENT or ENUMERATING.
+     */
+    for (auto& rejectStatus : rejectSourceStates) {
+        if (oldStatus == rejectStatus) {
+            ALOGV("%s: Rejecting status transition for Camera ID %s,  since the source "
+                    "state was was in one of the bad states.", __FUNCTION__, cameraId.string());
+            mStatus = oldStatus;
+            return;
+        }
+    }
+
+    onStatusUpdatedLocked(cameraId, status);
+}
+
 void CameraService::updateProxyDeviceState(ICameraServiceProxy::CameraState newState,
         const String8& cameraId) {
     sp<ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
@@ -2753,7 +2747,7 @@
 
 status_t CameraService::getTorchStatusLocked(
         const String8& cameraId,
-        int32_t *status) const {
+        TorchModeStatus *status) const {
     if (!status) {
         return BAD_VALUE;
     }
@@ -2768,14 +2762,12 @@
 }
 
 status_t CameraService::setTorchStatusLocked(const String8& cameraId,
-        int32_t status) {
+        TorchModeStatus status) {
     ssize_t index = mTorchStatusMap.indexOfKey(cameraId);
     if (index == NAME_NOT_FOUND) {
         return BAD_VALUE;
     }
-    int32_t& item =
-            mTorchStatusMap.editValueAt(index);
-    item = status;
+    mTorchStatusMap.editValueAt(index) = status;
 
     return OK;
 }
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index 11b1351..87603a3 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -29,13 +29,15 @@
 #include <camera/ICameraServiceProxy.h>
 #include <hardware/camera.h>
 
+#include <android/hardware/camera/common/1.0/types.h>
+
 #include <camera/VendorTagDescriptor.h>
 #include <camera/CaptureResult.h>
 #include <camera/CameraParameters.h>
 
 #include "CameraFlashlight.h"
 
-#include "common/CameraModule.h"
+#include "common/CameraProviderManager.h"
 #include "media/RingBuffer.h"
 #include "utils/AutoConditionLock.h"
 #include "utils/ClientManager.h"
@@ -55,11 +57,13 @@
 
 class CameraService :
     public BinderService<CameraService>,
-    public ::android::hardware::BnCameraService,
-    public IBinder::DeathRecipient,
-    public camera_module_callbacks_t
+    public virtual ::android::hardware::BnCameraService,
+    public virtual IBinder::DeathRecipient,
+    public camera_module_callbacks_t,
+    public virtual CameraProviderManager::StatusListener
 {
     friend class BinderService<CameraService>;
+    friend class CameraClient;
 public:
     class Client;
     class BasicClient;
@@ -70,11 +74,6 @@
         API_2 = 2
     };
 
-    // Process state (mirrors frameworks/base/core/java/android/app/ActivityManager.java)
-    static const int PROCESS_STATE_NONEXISTENT = -1;
-    static const int PROCESS_STATE_TOP = 2;
-    static const int PROCESS_STATE_TOP_SLEEPING = 5;
-
     // 3 second busy timeout when other clients are connecting
     static const nsecs_t DEFAULT_CONNECT_TIMEOUT_NS = 3000000000;
 
@@ -94,11 +93,13 @@
     virtual             ~CameraService();
 
     /////////////////////////////////////////////////////////////////////
-    // HAL Callbacks
-    virtual void        onDeviceStatusChanged(camera_device_status_t cameraId,
-                                              camera_device_status_t newStatus);
+    // HAL Callbacks - implements CameraProviderManager::StatusListener
+
+    virtual void        onDeviceStatusChanged(const String8 &cameraId,
+            hardware::camera::common::V1_0::CameraDeviceStatus newHalStatus) override;
     virtual void        onTorchStatusChanged(const String8& cameraId,
-                                             int32_t newStatus);
+            hardware::camera::common::V1_0::TorchModeStatus newStatus) override;
+    virtual void        onNewProviderRegistered() override;
 
     /////////////////////////////////////////////////////////////////////
     // ICameraService
@@ -106,11 +107,14 @@
 
     virtual binder::Status     getCameraInfo(int cameraId,
             hardware::CameraInfo* cameraInfo);
-    virtual binder::Status     getCameraCharacteristics(int cameraId,
+    virtual binder::Status     getCameraCharacteristics(const String16& cameraId,
             CameraMetadata* cameraInfo);
     virtual binder::Status     getCameraVendorTagDescriptor(
             /*out*/
             hardware::camera2::params::VendorTagDescriptor* desc);
+    virtual binder::Status     getCameraVendorTagCache(
+            /*out*/
+            hardware::camera2::params::VendorTagDescriptorCache* cache);
 
     virtual binder::Status     connect(const sp<hardware::ICameraClient>& cameraClient,
             int32_t cameraId, const String16& clientPackageName,
@@ -125,12 +129,14 @@
             sp<hardware::ICamera>* device);
 
     virtual binder::Status     connectDevice(
-            const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb, int32_t cameraId,
+            const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb, const String16& cameraId,
             const String16& clientPackageName, int32_t clientUid,
             /*out*/
             sp<hardware::camera2::ICameraDeviceUser>* device);
 
-    virtual binder::Status    addListener(const sp<hardware::ICameraServiceListener>& listener);
+    virtual binder::Status    addListener(const sp<hardware::ICameraServiceListener>& listener,
+            /*out*/
+            std::vector<hardware::CameraStatus>* cameraStatuses);
     virtual binder::Status    removeListener(
             const sp<hardware::ICameraServiceListener>& listener);
 
@@ -147,7 +153,7 @@
 
     // OK = supports api of that version, -EOPNOTSUPP = does not support
     virtual binder::Status    supportsCameraApi(
-            int32_t cameraId, int32_t apiVersion,
+            const String16& cameraId, int32_t apiVersion,
             /*out*/
             bool *isSupported);
 
@@ -181,7 +187,7 @@
 
     /////////////////////////////////////////////////////////////////////
     // CameraDeviceFactory functionality
-    int                 getDeviceVersion(int cameraId, int* facing = NULL);
+    int                 getDeviceVersion(const String8& cameraId, int* facing = NULL);
 
     /////////////////////////////////////////////////////////////////////
     // Shared utilities
@@ -192,7 +198,7 @@
 
     class BasicClient : public virtual RefBase {
     public:
-        virtual status_t       initialize(CameraModule *module) = 0;
+        virtual status_t       initialize(sp<CameraProviderManager> manager) = 0;
         virtual binder::Status disconnect();
 
         // because we can't virtually inherit IInterface, which breaks
@@ -229,7 +235,7 @@
         BasicClient(const sp<CameraService>& cameraService,
                 const sp<IBinder>& remoteCallback,
                 const String16& clientPackageName,
-                int cameraId,
+                const String8& cameraIdStr,
                 int cameraFacing,
                 int clientPid,
                 uid_t clientUid,
@@ -244,13 +250,13 @@
         bool                            mDestructionStarted;
 
         // these are initialized in the constructor.
-        sp<CameraService>               mCameraService;     // immutable after constructor
-        int                             mCameraId;          // immutable after constructor
-        int                             mCameraFacing;      // immutable after constructor
-        String16                        mClientPackageName; // immutable after constructor
+        static sp<CameraService>        sCameraService;
+        const String8                   mCameraIdStr;
+        const int                       mCameraFacing;
+        String16                        mClientPackageName;
         pid_t                           mClientPid;
-        uid_t                           mClientUid;         // immutable after constructor
-        pid_t                           mServicePid;        // immutable after constructor
+        const uid_t                     mClientUid;
+        const pid_t                     mServicePid;
         bool                            mDisconnected;
 
         // - The app-side Binder interface to receive callbacks from us
@@ -265,7 +271,7 @@
 
         class OpsCallback : public BnAppOpsCallback {
         public:
-            OpsCallback(wp<BasicClient> client);
+            explicit OpsCallback(wp<BasicClient> client);
             virtual void opChanged(int32_t op, const String16& packageName);
 
         private:
@@ -316,7 +322,7 @@
         Client(const sp<CameraService>& cameraService,
                 const sp<hardware::ICameraClient>& cameraClient,
                 const String16& clientPackageName,
-                int cameraId,
+                const String8& cameraIdStr,
                 int cameraFacing,
                 int clientPid,
                 uid_t clientUid,
@@ -339,14 +345,12 @@
         // superclass this can be cast to.
         virtual bool canCastToApiClient(apiLevel level) const;
     protected:
-        // Convert client from cookie.
-        static sp<CameraService::Client> getClientFromCookie(void* user);
-
         // Initialized in constructor
 
         // - The app-side Binder interface to receive callbacks from us
         sp<hardware::ICameraClient>               mRemoteCallback;
 
+        int mCameraId;  // All API1 clients use integer camera IDs
     }; // class Client
 
     /**
@@ -395,8 +399,8 @@
          * Make a ClientDescriptor object wrapping the given BasicClient strong pointer.
          */
         static DescriptorPtr makeClientDescriptor(const String8& key, const sp<BasicClient>& value,
-                int32_t cost, const std::set<String8>& conflictingKeys, int32_t priority,
-                int32_t ownerId);
+                int32_t cost, const std::set<String8>& conflictingKeys, int32_t score,
+                int32_t ownerId, int32_t state);
 
         /**
          * Make a ClientDescriptor object wrapping the given BasicClient strong pointer with
@@ -409,6 +413,20 @@
 
 private:
 
+    typedef hardware::camera::common::V1_0::CameraDeviceStatus CameraDeviceStatus;
+
+    /**
+     * Typesafe version of device status, containing both the HAL-layer and the service interface-
+     * layer values.
+     */
+    enum class StatusInternal : int32_t {
+        NOT_PRESENT = static_cast<int32_t>(CameraDeviceStatus::NOT_PRESENT),
+        PRESENT = static_cast<int32_t>(CameraDeviceStatus::PRESENT),
+        ENUMERATING = static_cast<int32_t>(CameraDeviceStatus::ENUMERATING),
+        NOT_AVAILABLE = static_cast<int32_t>(hardware::ICameraServiceListener::STATUS_NOT_AVAILABLE),
+        UNKNOWN = static_cast<int32_t>(hardware::ICameraServiceListener::STATUS_UNKNOWN)
+    };
+
     /**
      * Container class for the state of each logical camera device, including: ID, status, and
      * dependencies on other devices.  The mapping of camera ID -> state saved in mCameraStates
@@ -420,6 +438,7 @@
      */
     class CameraState {
     public:
+
         /**
          * Make a new CameraState and set the ID, cost, and conflicting devices using the values
          * returned in the HAL's camera_info struct for each device.
@@ -432,7 +451,7 @@
          *
          * This method acquires mStatusLock.
          */
-        int32_t getStatus() const;
+        StatusInternal getStatus() const;
 
         /**
          * This function updates the status for this camera device, unless the given status
@@ -445,8 +464,9 @@
          * This method aquires mStatusLock.
          */
         template<class Func>
-        void updateStatus(int32_t status, const String8& cameraId,
-                std::initializer_list<int32_t> rejectSourceStates,
+        void updateStatus(StatusInternal status,
+                const String8& cameraId,
+                std::initializer_list<StatusInternal> rejectSourceStates,
                 Func onStatusUpdatedLocked);
 
         /**
@@ -477,7 +497,7 @@
 
     private:
         const String8 mId;
-        int32_t mStatus; // protected by mStatusLock
+        StatusInternal mStatus; // protected by mStatusLock
         const int mCost;
         std::set<String8> mConflicting;
         mutable Mutex mStatusLock;
@@ -487,6 +507,9 @@
     // Delay-load the Camera HAL module
     virtual void onFirstRef();
 
+    // Eumerate all camera providers in the system
+    status_t enumerateProviders();
+
     // Check if we can connect, before we acquire the service lock.
     // The returned originalClientPid is the PID of the original process that wants to connect to
     // camera.
@@ -495,7 +518,9 @@
     // mediaserver to connect to camera (using MediaRecorder to connect to camera). In that case,
     // clientPid is the PID of mediaserver and originalClientPid is the PID of the application.
     binder::Status validateConnectLocked(const String8& cameraId, const String8& clientName8,
-          /*inout*/int& clientUid, /*inout*/int& clientPid, /*out*/int& originalClientPid) const;
+            /*inout*/int& clientUid, /*inout*/int& clientPid, /*out*/int& originalClientPid) const;
+    binder::Status validateClientPermissionsLocked(const String8& cameraId, const String8& clientName8,
+            /*inout*/int& clientUid, /*inout*/int& clientPid, /*out*/int& originalClientPid) const;
 
     // Handle active client evictions, and update service state.
     // Only call with with mServiceLock held.
@@ -539,11 +564,6 @@
     std::set<userid_t> mAllowedUsers;
 
     /**
-     * Check camera capabilities, such as support for basic color operation
-     */
-    int checkCameraCapabilities(int id, camera_info info, int *latestStrangeCameraId);
-
-    /**
      * Get the camera state for a given camera id.
      *
      * This acquires mCameraStatesLock.
@@ -655,7 +675,10 @@
     sp<MediaPlayer>     mSoundPlayer[NUM_SOUNDS];
     int                 mSoundRef;  // reference count (release all MediaPlayer when 0)
 
-    CameraModule*     mModule;
+    // Basic flag on whether the camera subsystem is in a usable state
+    bool                mInitialized;
+
+    sp<CameraProviderManager> mCameraProviderManager;
 
     // Guarded by mStatusListenerMutex
     std::vector<sp<hardware::ICameraServiceListener>> mListenerList;
@@ -669,9 +692,12 @@
      * This method must be idempotent.
      * This method acquires mStatusLock and mStatusListenerLock.
      */
-    void updateStatus(int32_t status, const String8& cameraId,
-            std::initializer_list<int32_t> rejectedSourceStates);
-    void updateStatus(int32_t status, const String8& cameraId);
+    void updateStatus(StatusInternal status,
+            const String8& cameraId,
+            std::initializer_list<StatusInternal>
+                rejectedSourceStates);
+    void updateStatus(StatusInternal status,
+            const String8& cameraId);
 
     // flashlight control
     sp<CameraFlashlight> mFlashlight;
@@ -682,7 +708,8 @@
     // guard mTorchUidMap
     Mutex                mTorchUidMapMutex;
     // camera id -> torch status
-    KeyedVector<String8, int32_t> mTorchStatusMap;
+    KeyedVector<String8, hardware::camera::common::V1_0::TorchModeStatus>
+            mTorchStatusMap;
     // camera id -> torch client binder
     // only store the last client that turns on each camera's torch mode
     KeyedVector<String8, sp<IBinder>> mTorchClientMap;
@@ -695,23 +722,19 @@
     // handle torch mode status change and invoke callbacks. mTorchStatusMutex
     // should be locked.
     void onTorchStatusChangedLocked(const String8& cameraId,
-            int32_t newStatus);
+            hardware::camera::common::V1_0::TorchModeStatus newStatus);
 
     // get a camera's torch status. mTorchStatusMutex should be locked.
     status_t getTorchStatusLocked(const String8 &cameraId,
-            int32_t *status) const;
+             hardware::camera::common::V1_0::TorchModeStatus *status) const;
 
     // set a camera's torch status. mTorchStatusMutex should be locked.
     status_t setTorchStatusLocked(const String8 &cameraId,
-            int32_t status);
+            hardware::camera::common::V1_0::TorchModeStatus status);
 
     // IBinder::DeathRecipient implementation
     virtual void        binderDied(const wp<IBinder> &who);
 
-    // Helpers
-
-    bool                setUpVendorTags();
-
     /**
      * Initialize and cache the metadata used by the HAL1 shim for a given cameraId.
      *
@@ -727,14 +750,6 @@
      */
     binder::Status      getLegacyParametersLazy(int cameraId, /*out*/CameraParameters* parameters);
 
-    /**
-     * Generate the CameraCharacteristics metadata required by the Camera2 API
-     * from the available HAL1 CameraParameters and CameraInfo.
-     *
-     * Sets Status to a service-specific error on failure
-     */
-    binder::Status      generateShimMetadata(int cameraId, /*out*/CameraMetadata* cameraInfo);
-
     static int getCallingPid();
 
     static int getCallingUid();
@@ -744,13 +759,8 @@
      */
     static String8 getFormattedCurrentTime();
 
-    /**
-     * Get the camera eviction priority from the current process state given by ActivityManager.
-     */
-    static int getCameraPriorityFromProcState(int procState);
-
     static binder::Status makeClient(const sp<CameraService>& cameraService,
-            const sp<IInterface>& cameraCb, const String16& packageName, int cameraId,
+            const sp<IInterface>& cameraCb, const String16& packageName, const String8& cameraId,
             int facing, int clientPid, uid_t clientUid, int servicePid, bool legacyMode,
             int halVersion, int deviceVersion, apiLevel effectiveApiLevel,
             /*out*/sp<BasicClient>* client);
@@ -758,227 +768,15 @@
     status_t checkCameraAccess(const String16& opPackageName);
 
     static String8 toString(std::set<userid_t> intSet);
+    static int32_t mapToInterface(hardware::camera::common::V1_0::TorchModeStatus status);
+    static StatusInternal mapToInternal(hardware::camera::common::V1_0::CameraDeviceStatus status);
+    static int32_t mapToInterface(StatusInternal status);
 
     static sp<ICameraServiceProxy> getCameraServiceProxy();
     static void pingCameraServiceProxy();
 
 };
 
-template<class Func>
-void CameraService::CameraState::updateStatus(int32_t status,
-        const String8& cameraId,
-        std::initializer_list<int32_t> rejectSourceStates,
-        Func onStatusUpdatedLocked) {
-    Mutex::Autolock lock(mStatusLock);
-    int32_t oldStatus = mStatus;
-    mStatus = status;
-
-    if (oldStatus == status) {
-        return;
-    }
-
-    ALOGV("%s: Status has changed for camera ID %s from %#x to %#x", __FUNCTION__,
-            cameraId.string(), oldStatus, status);
-
-    if (oldStatus == hardware::ICameraServiceListener::STATUS_NOT_PRESENT &&
-            (status != hardware::ICameraServiceListener::STATUS_PRESENT &&
-             status != hardware::ICameraServiceListener::STATUS_ENUMERATING)) {
-
-        ALOGW("%s: From NOT_PRESENT can only transition into PRESENT or ENUMERATING",
-                __FUNCTION__);
-        mStatus = oldStatus;
-        return;
-    }
-
-    /**
-     * Sometimes we want to conditionally do a transition.
-     * For example if a client disconnects, we want to go to PRESENT
-     * only if we weren't already in NOT_PRESENT or ENUMERATING.
-     */
-    for (auto& rejectStatus : rejectSourceStates) {
-        if (oldStatus == rejectStatus) {
-            ALOGV("%s: Rejecting status transition for Camera ID %s,  since the source "
-                    "state was was in one of the bad states.", __FUNCTION__, cameraId.string());
-            mStatus = oldStatus;
-            return;
-        }
-    }
-
-    onStatusUpdatedLocked(cameraId, status);
-}
-
-#define STATUS_ERROR(errorCode, errorString) \
-    binder::Status::fromServiceSpecificError(errorCode, \
-            String8::format("%s:%d: %s", __FUNCTION__, __LINE__, errorString))
-
-#define STATUS_ERROR_FMT(errorCode, errorString, ...) \
-    binder::Status::fromServiceSpecificError(errorCode, \
-            String8::format("%s:%d: " errorString, __FUNCTION__, __LINE__, __VA_ARGS__))
-
-
-template<class CALLBACK, class CLIENT>
-binder::Status CameraService::connectHelper(const sp<CALLBACK>& cameraCb, const String8& cameraId,
-        int halVersion, const String16& clientPackageName, int clientUid, int clientPid,
-        apiLevel effectiveApiLevel, bool legacyMode, bool shimUpdateOnly,
-        /*out*/sp<CLIENT>& device) {
-    binder::Status ret = binder::Status::ok();
-
-    String8 clientName8(clientPackageName);
-
-    int originalClientPid = 0;
-
-    ALOGI("CameraService::connect call (PID %d \"%s\", camera ID %s) for HAL version %s and "
-            "Camera API version %d", clientPid, clientName8.string(), cameraId.string(),
-            (halVersion == -1) ? "default" : std::to_string(halVersion).c_str(),
-            static_cast<int>(effectiveApiLevel));
-
-    sp<CLIENT> client = nullptr;
-    {
-        // Acquire mServiceLock and prevent other clients from connecting
-        std::unique_ptr<AutoConditionLock> lock =
-                AutoConditionLock::waitAndAcquire(mServiceLockWrapper, DEFAULT_CONNECT_TIMEOUT_NS);
-
-        if (lock == nullptr) {
-            ALOGE("CameraService::connect (PID %d) rejected (too many other clients connecting)."
-                    , clientPid);
-            return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
-                    "Cannot open camera %s for \"%s\" (PID %d): Too many other clients connecting",
-                    cameraId.string(), clientName8.string(), clientPid);
-        }
-
-        // Enforce client permissions and do basic sanity checks
-        if(!(ret = validateConnectLocked(cameraId, clientName8,
-                /*inout*/clientUid, /*inout*/clientPid, /*out*/originalClientPid)).isOk()) {
-            return ret;
-        }
-
-        // Check the shim parameters after acquiring lock, if they have already been updated and
-        // we were doing a shim update, return immediately
-        if (shimUpdateOnly) {
-            auto cameraState = getCameraState(cameraId);
-            if (cameraState != nullptr) {
-                if (!cameraState->getShimParams().isEmpty()) return ret;
-            }
-        }
-
-        status_t err;
-
-        sp<BasicClient> clientTmp = nullptr;
-        std::shared_ptr<resource_policy::ClientDescriptor<String8, sp<BasicClient>>> partial;
-        if ((err = handleEvictionsLocked(cameraId, originalClientPid, effectiveApiLevel,
-                IInterface::asBinder(cameraCb), clientName8, /*out*/&clientTmp,
-                /*out*/&partial)) != NO_ERROR) {
-            switch (err) {
-                case -ENODEV:
-                    return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
-                            "No camera device with ID \"%s\" currently available",
-                            cameraId.string());
-                case -EBUSY:
-                    return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
-                            "Higher-priority client using camera, ID \"%s\" currently unavailable",
-                            cameraId.string());
-                default:
-                    return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                            "Unexpected error %s (%d) opening camera \"%s\"",
-                            strerror(-err), err, cameraId.string());
-            }
-        }
-
-        if (clientTmp.get() != nullptr) {
-            // Handle special case for API1 MediaRecorder where the existing client is returned
-            device = static_cast<CLIENT*>(clientTmp.get());
-            return ret;
-        }
-
-        // give flashlight a chance to close devices if necessary.
-        mFlashlight->prepareDeviceOpen(cameraId);
-
-        // TODO: Update getDeviceVersion + HAL interface to use strings for Camera IDs
-        int id = cameraIdToInt(cameraId);
-        if (id == -1) {
-            ALOGE("%s: Invalid camera ID %s, cannot get device version from HAL.", __FUNCTION__,
-                    cameraId.string());
-            return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
-                    "Bad camera ID \"%s\" passed to camera open", cameraId.string());
-        }
-
-        int facing = -1;
-        int deviceVersion = getDeviceVersion(id, /*out*/&facing);
-        sp<BasicClient> tmp = nullptr;
-        if(!(ret = makeClient(this, cameraCb, clientPackageName, id, facing, clientPid,
-                clientUid, getpid(), legacyMode, halVersion, deviceVersion, effectiveApiLevel,
-                /*out*/&tmp)).isOk()) {
-            return ret;
-        }
-        client = static_cast<CLIENT*>(tmp.get());
-
-        LOG_ALWAYS_FATAL_IF(client.get() == nullptr, "%s: CameraService in invalid state",
-                __FUNCTION__);
-
-        if ((err = client->initialize(mModule)) != OK) {
-            ALOGE("%s: Could not initialize client from HAL module.", __FUNCTION__);
-            // Errors could be from the HAL module open call or from AppOpsManager
-            switch(err) {
-                case BAD_VALUE:
-                    return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
-                            "Illegal argument to HAL module for camera \"%s\"", cameraId.string());
-                case -EBUSY:
-                    return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
-                            "Camera \"%s\" is already open", cameraId.string());
-                case -EUSERS:
-                    return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
-                            "Too many cameras already open, cannot open camera \"%s\"",
-                            cameraId.string());
-                case PERMISSION_DENIED:
-                    return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
-                            "No permission to open camera \"%s\"", cameraId.string());
-                case -EACCES:
-                    return STATUS_ERROR_FMT(ERROR_DISABLED,
-                            "Camera \"%s\" disabled by policy", cameraId.string());
-                case -ENODEV:
-                default:
-                    return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                            "Failed to initialize camera \"%s\": %s (%d)", cameraId.string(),
-                            strerror(-err), err);
-            }
-        }
-
-        // Update shim paremeters for legacy clients
-        if (effectiveApiLevel == API_1) {
-            // Assume we have always received a Client subclass for API1
-            sp<Client> shimClient = reinterpret_cast<Client*>(client.get());
-            String8 rawParams = shimClient->getParameters();
-            CameraParameters params(rawParams);
-
-            auto cameraState = getCameraState(cameraId);
-            if (cameraState != nullptr) {
-                cameraState->setShimParams(params);
-            } else {
-                ALOGE("%s: Cannot update shim parameters for camera %s, no such device exists.",
-                        __FUNCTION__, cameraId.string());
-            }
-        }
-
-        if (shimUpdateOnly) {
-            // If only updating legacy shim parameters, immediately disconnect client
-            mServiceLock.unlock();
-            client->disconnect();
-            mServiceLock.lock();
-        } else {
-            // Otherwise, add client to active clients list
-            finishConnectLocked(client, partial);
-        }
-    } // lock is destroyed, allow further connect calls
-
-    // Important: release the mutex here so the client can call back into the service from its
-    // destructor (can be at the end of the call)
-    device = client;
-    return ret;
-}
-
-#undef STATUS_ERROR_FMT
-#undef STATUS_ERROR
-
 } // namespace android
 
 #endif
diff --git a/services/camera/libcameraservice/api1/Camera2Client.cpp b/services/camera/libcameraservice/api1/Camera2Client.cpp
index 005dd69..a28518e 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.cpp
+++ b/services/camera/libcameraservice/api1/Camera2Client.cpp
@@ -56,7 +56,8 @@
         int servicePid,
         bool legacyMode):
         Camera2ClientBase(cameraService, cameraClient, clientPackageName,
-                cameraId, cameraFacing, clientPid, clientUid, servicePid),
+                String8::format("%d", cameraId), cameraFacing,
+                clientPid, clientUid, servicePid),
         mParameters(cameraId, cameraFacing)
 {
     ATRACE_CALL();
@@ -67,13 +68,18 @@
     mLegacyMode = legacyMode;
 }
 
-status_t Camera2Client::initialize(CameraModule *module)
+status_t Camera2Client::initialize(sp<CameraProviderManager> manager) {
+    return initializeImpl(manager);
+}
+
+template<typename TProviderPtr>
+status_t Camera2Client::initializeImpl(TProviderPtr providerPtr)
 {
     ATRACE_CALL();
     ALOGV("%s: Initializing client for camera %d", __FUNCTION__, mCameraId);
     status_t res;
 
-    res = Camera2ClientBase::initialize(module);
+    res = Camera2ClientBase::initialize(providerPtr);
     if (res != OK) {
         return res;
     }
@@ -526,7 +532,7 @@
 }
 
 status_t Camera2Client::setPreviewWindowL(const sp<IBinder>& binder,
-        sp<Surface> window) {
+        const sp<Surface>& window) {
     ATRACE_CALL();
     status_t res;
 
@@ -993,7 +999,7 @@
 }
 
 status_t Camera2Client::startRecordingL(Parameters &params, bool restart) {
-    status_t res;
+    status_t res = OK;
 
     ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart);
 
@@ -1034,7 +1040,7 @@
     }
 
     if (!restart) {
-        mCameraService->playSound(CameraService::SOUND_RECORDING_START);
+        sCameraService->playSound(CameraService::SOUND_RECORDING_START);
         mStreamingProcessor->updateRecordingRequest(params);
         if (res != OK) {
             ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)",
@@ -1191,7 +1197,7 @@
             return;
     };
 
-    mCameraService->playSound(CameraService::SOUND_RECORDING_STOP);
+    sCameraService->playSound(CameraService::SOUND_RECORDING_STOP);
 
     // Remove recording stream because the video target may be abandoned soon.
     res = stopStream();
@@ -1251,6 +1257,13 @@
     ALOGW("%s: Not supported in buffer queue mode.", __FUNCTION__);
 }
 
+void Camera2Client::releaseRecordingFrameHandleBatch(
+        const std::vector<native_handle_t*>& handles) {
+    (void)handles;
+    ATRACE_CALL();
+    ALOGW("%s: Not supported in buffer queue mode.", __FUNCTION__);
+}
+
 status_t Camera2Client::autoFocus() {
     ATRACE_CALL();
     Mutex::Autolock icl(mBinderSerializationLock);
@@ -1621,7 +1634,7 @@
 }
 
 status_t Camera2Client::commandPlayRecordingSoundL() {
-    mCameraService->playSound(CameraService::SOUND_RECORDING_START);
+    sCameraService->playSound(CameraService::SOUND_RECORDING_START);
     return OK;
 }
 
@@ -1903,12 +1916,12 @@
 }
 
 status_t Camera2Client::registerFrameListener(int32_t minId, int32_t maxId,
-        wp<camera2::FrameProcessor::FilteredListener> listener, bool sendPartials) {
+        const wp<camera2::FrameProcessor::FilteredListener>& listener, bool sendPartials) {
     return mFrameProcessor->registerListener(minId, maxId, listener, sendPartials);
 }
 
 status_t Camera2Client::removeFrameListener(int32_t minId, int32_t maxId,
-        wp<camera2::FrameProcessor::FilteredListener> listener) {
+        const wp<camera2::FrameProcessor::FilteredListener>& listener) {
     return mFrameProcessor->removeListener(minId, maxId, listener);
 }
 
diff --git a/services/camera/libcameraservice/api1/Camera2Client.h b/services/camera/libcameraservice/api1/Camera2Client.h
index 3cb9e4f..72315d4 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.h
+++ b/services/camera/libcameraservice/api1/Camera2Client.h
@@ -72,6 +72,8 @@
     virtual bool            recordingEnabled();
     virtual void            releaseRecordingFrame(const sp<IMemory>& mem);
     virtual void            releaseRecordingFrameHandle(native_handle_t *handle);
+    virtual void            releaseRecordingFrameHandleBatch(
+                                    const std::vector<native_handle_t*>& handles);
     virtual status_t        autoFocus();
     virtual status_t        cancelAutoFocus();
     virtual status_t        takePicture(int msgType);
@@ -98,7 +100,7 @@
 
     virtual ~Camera2Client();
 
-    status_t initialize(CameraModule *module);
+    virtual status_t initialize(sp<CameraProviderManager> manager) override;
 
     virtual status_t dump(int fd, const Vector<String16>& args);
 
@@ -126,10 +128,10 @@
     int getZslStreamId() const;
 
     status_t registerFrameListener(int32_t minId, int32_t maxId,
-            wp<camera2::FrameProcessor::FilteredListener> listener,
+            const wp<camera2::FrameProcessor::FilteredListener>& listener,
             bool sendPartials = true);
     status_t removeFrameListener(int32_t minId, int32_t maxId,
-            wp<camera2::FrameProcessor::FilteredListener> listener);
+            const wp<camera2::FrameProcessor::FilteredListener>& listener);
 
     status_t stopStream();
 
@@ -160,7 +162,7 @@
     typedef camera2::Parameters Parameters;
 
     status_t setPreviewWindowL(const sp<IBinder>& binder,
-            sp<Surface> window);
+            const sp<Surface>& window);
     status_t startPreviewL(Parameters &params, bool restart);
     void     stopPreviewL();
     status_t startRecordingL(Parameters &params, bool restart);
@@ -219,6 +221,9 @@
 
     // Video snapshot jpeg size overriding helper function
     status_t overrideVideoSnapshotSize(Parameters &params);
+
+    template<typename TProviderPtr>
+    status_t initializeImpl(TProviderPtr providerPtr);
 };
 
 }; // namespace android
diff --git a/services/camera/libcameraservice/api1/CameraClient.cpp b/services/camera/libcameraservice/api1/CameraClient.cpp
index 266fb03..075c2e3 100644
--- a/services/camera/libcameraservice/api1/CameraClient.cpp
+++ b/services/camera/libcameraservice/api1/CameraClient.cpp
@@ -17,6 +17,7 @@
 #define LOG_TAG "CameraClient"
 //#define LOG_NDEBUG 0
 
+#include <cutils/atomic.h>
 #include <cutils/properties.h>
 #include <gui/Surface.h>
 #include <media/hardware/HardwareAPI.h>
@@ -41,7 +42,8 @@
         int clientPid, int clientUid,
         int servicePid, bool legacyMode):
         Client(cameraService, cameraClient, clientPackageName,
-                cameraId, cameraFacing, clientPid, clientUid, servicePid)
+                String8::format("%d", cameraId), cameraFacing, clientPid,
+                clientUid, servicePid)
 {
     int callingPid = getCallingPid();
     LOG1("CameraClient::CameraClient E (pid %d, id %d)", callingPid, cameraId);
@@ -60,7 +62,7 @@
     LOG1("CameraClient::CameraClient X (pid %d, id %d)", callingPid, cameraId);
 }
 
-status_t CameraClient::initialize(CameraModule *module) {
+status_t CameraClient::initialize(sp<CameraProviderManager> manager) {
     int callingPid = getCallingPid();
     status_t res;
 
@@ -76,7 +78,7 @@
     snprintf(camera_device_name, sizeof(camera_device_name), "%d", mCameraId);
 
     mHardware = new CameraHardwareInterface(camera_device_name);
-    res = mHardware->initialize(module);
+    res = mHardware->initialize(manager);
     if (res != OK) {
         ALOGE("%s: Camera %d: unable to initialize device: %s (%d)",
                 __FUNCTION__, mCameraId, strerror(-res), res);
@@ -87,6 +89,7 @@
     mHardware->setCallbacks(notifyCallback,
             dataCallback,
             dataCallbackTimestamp,
+            handleCallbackTimestampBatch,
             (void *)(uintptr_t)mCameraId);
 
     // Enable zoom, error, focus, and metadata messages by default
@@ -252,7 +255,7 @@
     // Turn off all messages.
     disableMsgType(CAMERA_MSG_ALL_MSGS);
     mHardware->stopPreview();
-    mCameraService->updateProxyDeviceState(
+    sCameraService->updateProxyDeviceState(
         ICameraServiceProxy::CAMERA_STATE_IDLE,
         String8::format("%d", mCameraId));
     mHardware->cancelPicture();
@@ -414,7 +417,7 @@
     mHardware->setPreviewWindow(mPreviewWindow);
     result = mHardware->startPreview();
     if (result == NO_ERROR) {
-        mCameraService->updateProxyDeviceState(
+        sCameraService->updateProxyDeviceState(
             ICameraServiceProxy::CAMERA_STATE_ACTIVE,
             String8::format("%d", mCameraId));
     }
@@ -440,7 +443,7 @@
 
     // start recording mode
     enableMsgType(CAMERA_MSG_VIDEO_FRAME);
-    mCameraService->playSound(CameraService::SOUND_RECORDING_START);
+    sCameraService->playSound(CameraService::SOUND_RECORDING_START);
     result = mHardware->startRecording();
     if (result != NO_ERROR) {
         ALOGE("mHardware->startRecording() failed with status %d", result);
@@ -457,7 +460,7 @@
 
     disableMsgType(CAMERA_MSG_PREVIEW_FRAME);
     mHardware->stopPreview();
-    mCameraService->updateProxyDeviceState(
+    sCameraService->updateProxyDeviceState(
         ICameraServiceProxy::CAMERA_STATE_IDLE,
         String8::format("%d", mCameraId));
     mPreviewBuffer.clear();
@@ -466,14 +469,23 @@
 // stop recording mode
 void CameraClient::stopRecording() {
     LOG1("stopRecording (pid %d)", getCallingPid());
-    Mutex::Autolock lock(mLock);
-    if (checkPidAndHardware() != NO_ERROR) return;
+    {
+        Mutex::Autolock lock(mLock);
+        if (checkPidAndHardware() != NO_ERROR) return;
 
-    disableMsgType(CAMERA_MSG_VIDEO_FRAME);
-    mHardware->stopRecording();
-    mCameraService->playSound(CameraService::SOUND_RECORDING_STOP);
+        disableMsgType(CAMERA_MSG_VIDEO_FRAME);
+        mHardware->stopRecording();
+        sCameraService->playSound(CameraService::SOUND_RECORDING_STOP);
 
-    mPreviewBuffer.clear();
+        mPreviewBuffer.clear();
+    }
+
+    {
+        Mutex::Autolock l(mAvailableCallbackBuffersLock);
+        if (!mAvailableCallbackBuffers.empty()) {
+            mAvailableCallbackBuffers.clear();
+        }
+    }
 }
 
 // release a recording frame
@@ -522,6 +534,50 @@
     mHardware->releaseRecordingFrame(dataPtr);
 }
 
+void CameraClient::releaseRecordingFrameHandleBatch(const std::vector<native_handle_t*>& handles) {
+    size_t n = handles.size();
+    std::vector<sp<IMemory>> frames;
+    frames.reserve(n);
+    bool error = false;
+    for (auto& handle : handles) {
+        sp<IMemory> dataPtr;
+        {
+            Mutex::Autolock l(mAvailableCallbackBuffersLock);
+            if (!mAvailableCallbackBuffers.empty()) {
+                dataPtr = mAvailableCallbackBuffers.back();
+                mAvailableCallbackBuffers.pop_back();
+            }
+        }
+
+        if (dataPtr == nullptr) {
+            ALOGE("%s: %d: No callback buffer available. Dropping frames.", __FUNCTION__,
+                    __LINE__);
+            error = true;
+            break;
+        } else if (dataPtr->size() != sizeof(VideoNativeHandleMetadata)) {
+            ALOGE("%s: %d: Callback buffer must be VideoNativeHandleMetadata", __FUNCTION__,
+                    __LINE__);
+            error = true;
+            break;
+        }
+
+        VideoNativeHandleMetadata *metadata = (VideoNativeHandleMetadata*)(dataPtr->pointer());
+        metadata->eType = kMetadataBufferTypeNativeHandleSource;
+        metadata->pHandle = handle;
+        frames.push_back(dataPtr);
+    }
+
+    if (error) {
+        for (auto& handle : handles) {
+            native_handle_close(handle);
+            native_handle_delete(handle);
+        }
+    } else {
+        mHardware->releaseRecordingFrameBatch(frames);
+    }
+    return;
+}
+
 status_t CameraClient::setVideoBufferMode(int32_t videoBufferMode) {
     LOG1("setVideoBufferMode: %d", videoBufferMode);
     bool enableMetadataInBuffers = false;
@@ -697,7 +753,7 @@
         }
         return OK;
     } else if (cmd == CAMERA_CMD_PLAY_RECORDING_SOUND) {
-        mCameraService->playSound(CameraService::SOUND_RECORDING_START);
+        sCameraService->playSound(CameraService::SOUND_RECORDING_START);
     } else if (cmd == CAMERA_CMD_SET_VIDEO_BUFFER_COUNT) {
         // Silently ignore this command
         return INVALID_OPERATION;
@@ -748,6 +804,16 @@
     return false;
 }
 
+sp<CameraClient> CameraClient::getClientFromCookie(void* user) {
+    String8 cameraId = String8::format("%d", (int)(intptr_t) user);
+    auto clientDescriptor = sCameraService->mActiveClientManager.get(cameraId);
+    if (clientDescriptor != nullptr) {
+        return sp<CameraClient>{
+                static_cast<CameraClient*>(clientDescriptor->getValue().get())};
+    }
+    return sp<CameraClient>{nullptr};
+}
+
 // Callback messages can be dispatched to internal handlers or pass to our
 // client's callback functions, depending on the message type.
 //
@@ -767,7 +833,7 @@
         int32_t ext2, void* user) {
     LOG2("notifyCallback(%d)", msgType);
 
-    sp<CameraClient> client = static_cast<CameraClient*>(getClientFromCookie(user).get());
+    sp<CameraClient> client = getClientFromCookie(user);
     if (client.get() == nullptr) return;
 
     if (!client->lockIfMessageWanted(msgType)) return;
@@ -787,7 +853,7 @@
         const sp<IMemory>& dataPtr, camera_frame_metadata_t *metadata, void* user) {
     LOG2("dataCallback(%d)", msgType);
 
-    sp<CameraClient> client = static_cast<CameraClient*>(getClientFromCookie(user).get());
+    sp<CameraClient> client = getClientFromCookie(user);
     if (client.get() == nullptr) return;
 
     if (!client->lockIfMessageWanted(msgType)) return;
@@ -820,7 +886,7 @@
         int32_t msgType, const sp<IMemory>& dataPtr, void* user) {
     LOG2("dataCallbackTimestamp(%d)", msgType);
 
-    sp<CameraClient> client = static_cast<CameraClient*>(getClientFromCookie(user).get());
+    sp<CameraClient> client = getClientFromCookie(user);
     if (client.get() == nullptr) return;
 
     if (!client->lockIfMessageWanted(msgType)) return;
@@ -834,10 +900,53 @@
     client->handleGenericDataTimestamp(timestamp, msgType, dataPtr);
 }
 
+void CameraClient::handleCallbackTimestampBatch(
+        int32_t msgType, const std::vector<HandleTimestampMessage>& msgs, void* user) {
+    LOG2("dataCallbackTimestampBatch");
+    sp<CameraClient> client = getClientFromCookie(user);
+    if (client.get() == nullptr) return;
+    if (!client->lockIfMessageWanted(msgType)) return;
+
+    sp<hardware::ICameraClient> c = client->mRemoteCallback;
+    client->mLock.unlock();
+    if (c != 0 && msgs.size() > 0) {
+        size_t n = msgs.size();
+        std::vector<nsecs_t> timestamps;
+        std::vector<native_handle_t*> handles;
+        timestamps.reserve(n);
+        handles.reserve(n);
+        for (auto& msg : msgs) {
+            native_handle_t* handle = nullptr;
+            if (msg.dataPtr->size() != sizeof(VideoNativeHandleMetadata)) {
+                ALOGE("%s: dataPtr does not contain VideoNativeHandleMetadata!", __FUNCTION__);
+                return;
+            }
+            VideoNativeHandleMetadata *metadata =
+                (VideoNativeHandleMetadata*)(msg.dataPtr->pointer());
+            if (metadata->eType == kMetadataBufferTypeNativeHandleSource) {
+                handle = metadata->pHandle;
+            }
+
+            if (handle == nullptr) {
+                ALOGE("%s: VideoNativeHandleMetadata type mismatch or null handle passed!",
+                        __FUNCTION__);
+                return;
+            }
+            {
+                Mutex::Autolock l(client->mAvailableCallbackBuffersLock);
+                client->mAvailableCallbackBuffers.push_back(msg.dataPtr);
+            }
+            timestamps.push_back(msg.timestamp);
+            handles.push_back(handle);
+        }
+        c->recordingFrameHandleCallbackTimestampBatch(timestamps, handles);
+    }
+}
+
 // snapshot taken callback
 void CameraClient::handleShutter(void) {
     if (mPlayShutterSound) {
-        mCameraService->playSound(CameraService::SOUND_SHUTTER);
+        sCameraService->playSound(CameraService::SOUND_SHUTTER);
     }
 
     sp<hardware::ICameraClient> c = mRemoteCallback;
@@ -850,7 +959,7 @@
 
     // Shutters only happen in response to takePicture, so mark device as
     // idle now, until preview is restarted
-    mCameraService->updateProxyDeviceState(
+    sCameraService->updateProxyDeviceState(
         ICameraServiceProxy::CAMERA_STATE_IDLE,
         String8::format("%d", mCameraId));
 
diff --git a/services/camera/libcameraservice/api1/CameraClient.h b/services/camera/libcameraservice/api1/CameraClient.h
index 4f46fc4..7f93fef 100644
--- a/services/camera/libcameraservice/api1/CameraClient.h
+++ b/services/camera/libcameraservice/api1/CameraClient.h
@@ -50,6 +50,8 @@
     virtual bool            recordingEnabled();
     virtual void            releaseRecordingFrame(const sp<IMemory>& mem);
     virtual void            releaseRecordingFrameHandle(native_handle_t *handle);
+    virtual void            releaseRecordingFrameHandleBatch(
+                                    const std::vector<native_handle_t*>& handles);
     virtual status_t        autoFocus();
     virtual status_t        cancelAutoFocus();
     virtual status_t        takePicture(int msgType);
@@ -70,7 +72,7 @@
             bool legacyMode = false);
     ~CameraClient();
 
-    status_t initialize(CameraModule *module);
+    virtual status_t initialize(sp<CameraProviderManager> manager) override;
 
     virtual status_t dump(int fd, const Vector<String16>& args);
 
@@ -98,11 +100,15 @@
     // internal function used by sendCommand to enable/disable shutter sound.
     status_t                enableShutterSound(bool enable);
 
+    static sp<CameraClient>        getClientFromCookie(void* user);
+
     // these are static callback functions
     static void             notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2, void* user);
     static void             dataCallback(int32_t msgType, const sp<IMemory>& dataPtr,
             camera_frame_metadata_t *metadata, void* user);
     static void             dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr, void* user);
+    static void             handleCallbackTimestampBatch(
+                                    int32_t msgType, const std::vector<HandleTimestampMessage>&, void* user);
     // handlers for messages
     void                    handleShutter(void);
     void                    handlePreviewData(int32_t msgType, const sp<IMemory>& mem,
diff --git a/services/camera/libcameraservice/api1/client2/CallbackProcessor.cpp b/services/camera/libcameraservice/api1/client2/CallbackProcessor.cpp
index b4b269a..3f4017f 100644
--- a/services/camera/libcameraservice/api1/client2/CallbackProcessor.cpp
+++ b/services/camera/libcameraservice/api1/client2/CallbackProcessor.cpp
@@ -55,7 +55,7 @@
 }
 
 status_t CallbackProcessor::setCallbackWindow(
-        sp<Surface> callbackWindow) {
+        const sp<Surface>& callbackWindow) {
     ATRACE_CALL();
     status_t res;
 
diff --git a/services/camera/libcameraservice/api1/client2/CallbackProcessor.h b/services/camera/libcameraservice/api1/client2/CallbackProcessor.h
index a22442f..5231688 100644
--- a/services/camera/libcameraservice/api1/client2/CallbackProcessor.h
+++ b/services/camera/libcameraservice/api1/client2/CallbackProcessor.h
@@ -41,13 +41,13 @@
 class CallbackProcessor:
             public Thread, public CpuConsumer::FrameAvailableListener {
   public:
-    CallbackProcessor(sp<Camera2Client> client);
+    explicit CallbackProcessor(sp<Camera2Client> client);
     ~CallbackProcessor();
 
     void onFrameAvailable(const BufferItem& item);
 
     // Set to NULL to disable the direct-to-app callback window
-    status_t setCallbackWindow(sp<Surface> callbackWindow);
+    status_t setCallbackWindow(const sp<Surface>& callbackWindow);
     status_t updateStream(const Parameters &params);
     status_t deleteStream();
     int getStreamId() const;
diff --git a/services/camera/libcameraservice/api1/client2/Camera2Heap.h b/services/camera/libcameraservice/api1/client2/Camera2Heap.h
index 9c72d76..fe3afcb 100644
--- a/services/camera/libcameraservice/api1/client2/Camera2Heap.h
+++ b/services/camera/libcameraservice/api1/client2/Camera2Heap.h
@@ -26,7 +26,7 @@
 // Utility class for managing a set of IMemory blocks
 class Camera2Heap : public RefBase {
   public:
-    Camera2Heap(size_t buf_size, uint_t num_buffers = 1,
+    explicit Camera2Heap(size_t buf_size, uint_t num_buffers = 1,
             const char *name = NULL) :
             mBufSize(buf_size),
             mNumBufs(num_buffers) {
diff --git a/services/camera/libcameraservice/api1/client2/CaptureSequencer.cpp b/services/camera/libcameraservice/api1/client2/CaptureSequencer.cpp
index 05adb29..b65f1c7 100644
--- a/services/camera/libcameraservice/api1/client2/CaptureSequencer.cpp
+++ b/services/camera/libcameraservice/api1/client2/CaptureSequencer.cpp
@@ -59,7 +59,7 @@
     ALOGV("%s: Exit", __FUNCTION__);
 }
 
-void CaptureSequencer::setZslProcessor(wp<ZslProcessor> processor) {
+void CaptureSequencer::setZslProcessor(const wp<ZslProcessor>& processor) {
     Mutex::Autolock l(mInputMutex);
     mZslProcessor = processor;
 }
@@ -132,7 +132,7 @@
 }
 
 void CaptureSequencer::onCaptureAvailable(nsecs_t timestamp,
-        sp<MemoryBase> captureBuffer, bool captureError) {
+        const sp<MemoryBase>& captureBuffer, bool captureError) {
     ATRACE_CALL();
     ALOGV("%s", __FUNCTION__);
     Mutex::Autolock l(mInputMutex);
@@ -709,7 +709,7 @@
 }
 
 /*static*/ void CaptureSequencer::shutterNotifyLocked(const Parameters &params,
-            sp<Camera2Client> client, int msgType) {
+            const sp<Camera2Client>& client, int msgType) {
     ATRACE_CALL();
 
     if (params.state == Parameters::STILL_CAPTURE
diff --git a/services/camera/libcameraservice/api1/client2/CaptureSequencer.h b/services/camera/libcameraservice/api1/client2/CaptureSequencer.h
index a7c61d2..f2e3750 100644
--- a/services/camera/libcameraservice/api1/client2/CaptureSequencer.h
+++ b/services/camera/libcameraservice/api1/client2/CaptureSequencer.h
@@ -44,11 +44,11 @@
             virtual public Thread,
             virtual public FrameProcessor::FilteredListener {
   public:
-    CaptureSequencer(wp<Camera2Client> client);
+    explicit CaptureSequencer(wp<Camera2Client> client);
     ~CaptureSequencer();
 
     // Get reference to the ZslProcessor, which holds the ZSL buffers and frames
-    void setZslProcessor(wp<ZslProcessor> processor);
+    void setZslProcessor(const wp<ZslProcessor>& processor);
 
     // Begin still image capture
     status_t startCapture(int msgType);
@@ -69,7 +69,7 @@
     virtual void onResultAvailable(const CaptureResult &result);
 
     // Notifications from the JPEG processor
-    void onCaptureAvailable(nsecs_t timestamp, sp<MemoryBase> captureBuffer, bool captureError);
+    void onCaptureAvailable(nsecs_t timestamp, const sp<MemoryBase>& captureBuffer, bool captureError);
 
     void dump(int fd, const Vector<String16>& args);
 
@@ -172,7 +172,7 @@
 
     // Emit Shutter/Raw callback to java, and maybe play a shutter sound
     static void shutterNotifyLocked(const Parameters &params,
-            sp<Camera2Client> client, int msgType);
+            const sp<Camera2Client>& client, int msgType);
 };
 
 }; // namespace camera2
diff --git a/services/camera/libcameraservice/api1/client2/FrameProcessor.cpp b/services/camera/libcameraservice/api1/client2/FrameProcessor.cpp
index 4d12015..6e21126 100644
--- a/services/camera/libcameraservice/api1/client2/FrameProcessor.cpp
+++ b/services/camera/libcameraservice/api1/client2/FrameProcessor.cpp
@@ -41,11 +41,7 @@
     {
         SharedParameters::Lock l(client->getParameters());
 
-        if (client->getCameraDeviceVersion() >= CAMERA_DEVICE_API_VERSION_3_2) {
-            mUsePartialResult = (mNumPartialResults > 1);
-        } else {
-            mUsePartialResult = l.mParameters.quirks.partialResults;
-        }
+        mUsePartialResult = (mNumPartialResults > 1);
 
         // Initialize starting 3A state
         m3aState.afTriggerId = l.mParameters.afTriggerCounter;
@@ -76,16 +72,7 @@
 
     bool isPartialResult = false;
     if (mUsePartialResult) {
-        if (client->getCameraDeviceVersion() >= CAMERA_DEVICE_API_VERSION_3_2) {
-            isPartialResult = frame.mResultExtras.partialResultCount < mNumPartialResults;
-        } else {
-            camera_metadata_entry_t entry;
-            entry = frame.mMetadata.find(ANDROID_QUIRKS_PARTIAL_RESULT);
-            if (entry.count > 0 &&
-                    entry.data.u8[0] == ANDROID_QUIRKS_PARTIAL_RESULT_PARTIAL) {
-                isPartialResult = true;
-            }
-        }
+        isPartialResult = frame.mResultExtras.partialResultCount < mNumPartialResults;
     }
 
     if (!isPartialResult && processFaceDetect(frame.mMetadata, client) != OK) {
@@ -291,16 +278,8 @@
     gotAllStates &= updatePendingState<uint8_t>(metadata, ANDROID_CONTROL_AWB_STATE,
             &pendingState.awbState, frameNumber, cameraId);
 
-    if (client->getCameraDeviceVersion() >= CAMERA_DEVICE_API_VERSION_3_2) {
-        pendingState.afTriggerId = frame.mResultExtras.afTriggerId;
-        pendingState.aeTriggerId = frame.mResultExtras.precaptureTriggerId;
-    } else {
-        gotAllStates &= updatePendingState<int32_t>(metadata,
-                ANDROID_CONTROL_AF_TRIGGER_ID, &pendingState.afTriggerId, frameNumber, cameraId);
-
-        gotAllStates &= updatePendingState<int32_t>(metadata,
-            ANDROID_CONTROL_AE_PRECAPTURE_ID, &pendingState.aeTriggerId, frameNumber, cameraId);
-    }
+    pendingState.afTriggerId = frame.mResultExtras.afTriggerId;
+    pendingState.aeTriggerId = frame.mResultExtras.precaptureTriggerId;
 
     if (!gotAllStates) {
         // If not all states are received, put the pending state to mPending3AStates.
@@ -367,9 +346,12 @@
 
     entry = result.find(tag);
     if (entry.count == 0) {
+        const camera_metadata *metaBuffer = result.getAndLock();
         ALOGV("%s: Camera %d: No %s provided by HAL for frame %d in this result!",
                 __FUNCTION__, cameraId,
-                get_camera_metadata_tag_name(tag), frameNumber);
+                get_local_camera_metadata_tag_name(tag, metaBuffer),
+                frameNumber);
+        result.unlock(metaBuffer);
         return false;
     } else {
         switch(sizeof(Src)){
@@ -389,7 +371,7 @@
 }
 
 
-void FrameProcessor::callbackFaceDetection(sp<Camera2Client> client,
+void FrameProcessor::callbackFaceDetection(const sp<Camera2Client>& client,
                                      const camera_frame_metadata &metadata) {
 
     camera_frame_metadata *metadata_ptr =
diff --git a/services/camera/libcameraservice/api1/client2/FrameProcessor.h b/services/camera/libcameraservice/api1/client2/FrameProcessor.h
index a5b81a7..62a4e91 100644
--- a/services/camera/libcameraservice/api1/client2/FrameProcessor.h
+++ b/services/camera/libcameraservice/api1/client2/FrameProcessor.h
@@ -107,7 +107,7 @@
     int32_t mLast3AFrameNumber;
 
     // Emit FaceDetection event to java if faces changed
-    void callbackFaceDetection(sp<Camera2Client> client,
+    void callbackFaceDetection(const sp<Camera2Client>& client,
                                const camera_frame_metadata &metadata);
 };
 
diff --git a/services/camera/libcameraservice/api1/client2/JpegCompressor.cpp b/services/camera/libcameraservice/api1/client2/JpegCompressor.cpp
index 9ecab71..01951a0 100644
--- a/services/camera/libcameraservice/api1/client2/JpegCompressor.cpp
+++ b/services/camera/libcameraservice/api1/client2/JpegCompressor.cpp
@@ -36,7 +36,7 @@
     Mutex::Autolock lock(mMutex);
 }
 
-status_t JpegCompressor::start(Vector<CpuConsumer::LockedBuffer*> buffers,
+status_t JpegCompressor::start(const Vector<CpuConsumer::LockedBuffer*>& buffers,
         nsecs_t captureTime) {
     ALOGV("%s", __FUNCTION__);
     Mutex::Autolock busyLock(mBusyMutex);
diff --git a/services/camera/libcameraservice/api1/client2/JpegCompressor.h b/services/camera/libcameraservice/api1/client2/JpegCompressor.h
index df5da54..589a2fd 100644
--- a/services/camera/libcameraservice/api1/client2/JpegCompressor.h
+++ b/services/camera/libcameraservice/api1/client2/JpegCompressor.h
@@ -48,7 +48,7 @@
 
     // Start compressing COMPRESSED format buffers; JpegCompressor takes
     // ownership of the Buffers vector.
-    status_t start(Vector<CpuConsumer::LockedBuffer*> buffers,
+    status_t start(const Vector<CpuConsumer::LockedBuffer*>& buffers,
             nsecs_t captureTime);
 
     status_t cancel();
diff --git a/services/camera/libcameraservice/api1/client2/Parameters.cpp b/services/camera/libcameraservice/api1/client2/Parameters.cpp
index 9a7839b..a305bc7 100644
--- a/services/camera/libcameraservice/api1/client2/Parameters.cpp
+++ b/services/camera/libcameraservice/api1/client2/Parameters.cpp
@@ -798,16 +798,38 @@
             exposureCompensationStep.data.r[0].denominator);
 
     autoExposureLock = false;
-    params.set(CameraParameters::KEY_AUTO_EXPOSURE_LOCK,
-            CameraParameters::FALSE);
-    params.set(CameraParameters::KEY_AUTO_EXPOSURE_LOCK_SUPPORTED,
-            CameraParameters::TRUE);
+    autoExposureLockAvailable = false;
+    camera_metadata_ro_entry_t exposureLockAvailable =
+        staticInfo(ANDROID_CONTROL_AE_LOCK_AVAILABLE, 1, 1);
+    if ((0 < exposureLockAvailable.count) &&
+            (ANDROID_CONTROL_AE_LOCK_AVAILABLE_TRUE ==
+                    exposureLockAvailable.data.u8[0])) {
+        params.set(CameraParameters::KEY_AUTO_EXPOSURE_LOCK,
+                CameraParameters::FALSE);
+        params.set(CameraParameters::KEY_AUTO_EXPOSURE_LOCK_SUPPORTED,
+                   CameraParameters::TRUE);
+        autoExposureLockAvailable = true;
+    } else {
+        params.set(CameraParameters::KEY_AUTO_EXPOSURE_LOCK_SUPPORTED,
+                   CameraParameters::FALSE);
+    }
 
     autoWhiteBalanceLock = false;
-    params.set(CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK,
-            CameraParameters::FALSE);
-    params.set(CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK_SUPPORTED,
-            CameraParameters::TRUE);
+    autoWhiteBalanceLockAvailable = false;
+    camera_metadata_ro_entry_t whitebalanceLockAvailable =
+        staticInfo(ANDROID_CONTROL_AWB_LOCK_AVAILABLE, 1, 1);
+    if ((0 < whitebalanceLockAvailable.count) &&
+            (ANDROID_CONTROL_AWB_LOCK_AVAILABLE_TRUE ==
+                    whitebalanceLockAvailable.data.u8[0])) {
+        params.set(CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK,
+                CameraParameters::FALSE);
+        params.set(CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK_SUPPORTED,
+                CameraParameters::TRUE);
+        autoWhiteBalanceLockAvailable = true;
+    } else {
+        params.set(CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK_SUPPORTED,
+                CameraParameters::FALSE);
+    }
 
     meteringAreas.add(Parameters::Area(0, 0, 0, 0, 0));
     params.set(CameraParameters::KEY_MAX_NUM_METERING_AREAS,
@@ -816,30 +838,37 @@
             "(0,0,0,0,0)");
 
     zoom = 0;
-    params.set(CameraParameters::KEY_ZOOM, zoom);
-    params.set(CameraParameters::KEY_MAX_ZOOM, NUM_ZOOM_STEPS - 1);
-
+    zoomAvailable = false;
     camera_metadata_ro_entry_t maxDigitalZoom =
         staticInfo(ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM, /*minCount*/1, /*maxCount*/1);
     if (!maxDigitalZoom.count) return NO_INIT;
 
-    {
-        String8 zoomRatios;
-        float zoom = 1.f;
-        float zoomIncrement = (maxDigitalZoom.data.f[0] - zoom) /
-                (NUM_ZOOM_STEPS-1);
-        bool addComma = false;
-        for (size_t i=0; i < NUM_ZOOM_STEPS; i++) {
-            if (addComma) zoomRatios += ",";
-            addComma = true;
-            zoomRatios += String8::format("%d", static_cast<int>(zoom * 100));
-            zoom += zoomIncrement;
-        }
-        params.set(CameraParameters::KEY_ZOOM_RATIOS, zoomRatios);
-    }
+    if (fabs(maxDigitalZoom.data.f[0] - 1.f) > 0.00001f) {
+        params.set(CameraParameters::KEY_ZOOM, zoom);
+        params.set(CameraParameters::KEY_MAX_ZOOM, NUM_ZOOM_STEPS - 1);
 
-    params.set(CameraParameters::KEY_ZOOM_SUPPORTED,
-            CameraParameters::TRUE);
+        {
+            String8 zoomRatios;
+            float zoom = 1.f;
+            float zoomIncrement = (maxDigitalZoom.data.f[0] - zoom) /
+                    (NUM_ZOOM_STEPS-1);
+            bool addComma = false;
+            for (size_t i=0; i < NUM_ZOOM_STEPS; i++) {
+                if (addComma) zoomRatios += ",";
+                addComma = true;
+                zoomRatios += String8::format("%d", static_cast<int>(zoom * 100));
+                zoom += zoomIncrement;
+            }
+            params.set(CameraParameters::KEY_ZOOM_RATIOS, zoomRatios);
+        }
+
+        params.set(CameraParameters::KEY_ZOOM_SUPPORTED,
+                CameraParameters::TRUE);
+        zoomAvailable = true;
+    } else {
+        params.set(CameraParameters::KEY_ZOOM_SUPPORTED,
+                CameraParameters::FALSE);
+    }
     params.set(CameraParameters::KEY_SMOOTH_ZOOM_SUPPORTED,
             CameraParameters::FALSE);
 
@@ -911,13 +940,25 @@
             CameraParameters::FALSE);
     }
 
-    char value[PROPERTY_VALUE_MAX];
-    property_get("camera.disable_zsl_mode", value, "0");
-    if (!strcmp(value,"1") || slowJpegMode) {
+    isZslReprocessPresent = false;
+    camera_metadata_ro_entry_t availableCapabilities =
+        staticInfo(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
+    if (0 < availableCapabilities.count) {
+        const uint8_t *caps = availableCapabilities.data.u8;
+        for (size_t i = 0; i < availableCapabilities.count; i++) {
+            if (ANDROID_REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING ==
+                caps[i]) {
+                isZslReprocessPresent = true;
+                break;
+            }
+        }
+    }
+
+    if (slowJpegMode || property_get_bool("camera.disable_zsl_mode", false)) {
         ALOGI("Camera %d: Disabling ZSL mode", cameraId);
         allowZslMode = false;
     } else {
-        allowZslMode = true;
+        allowZslMode = isZslReprocessPresent;
     }
 
     ALOGI("%s: allowZslMode: %d slowJpegMode %d", __FUNCTION__, allowZslMode, slowJpegMode);
@@ -958,7 +999,7 @@
         return NO_INIT;
     }
 
-    // Get supported preview fps ranges.
+    // Get supported preview fps ranges, up to default maximum.
     Vector<Size> supportedPreviewSizes;
     Vector<FpsRange> supportedPreviewFpsRanges;
     const Size PREVIEW_SIZE_BOUND = { MAX_PREVIEW_WIDTH, MAX_PREVIEW_HEIGHT };
@@ -966,7 +1007,8 @@
     if (res != OK) return res;
     for (size_t i=0; i < availableFpsRanges.count; i += 2) {
         if (!isFpsSupported(supportedPreviewSizes,
-                HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, availableFpsRanges.data.i32[i+1])) {
+                HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, availableFpsRanges.data.i32[i+1]) ||
+                availableFpsRanges.data.i32[i+1] > MAX_DEFAULT_FPS) {
             continue;
         }
         FpsRange fpsRange = {availableFpsRanges.data.i32[i], availableFpsRanges.data.i32[i+1]};
@@ -1186,11 +1228,14 @@
 camera_metadata_ro_entry_t Parameters::staticInfo(uint32_t tag,
         size_t minCount, size_t maxCount, bool required) const {
     camera_metadata_ro_entry_t entry = info->find(tag);
+    const camera_metadata_t *metaBuffer = info->getAndLock();
 
     if (CC_UNLIKELY( entry.count == 0 ) && required) {
-        const char* tagSection = get_camera_metadata_section_name(tag);
+        const char* tagSection = get_local_camera_metadata_section_name(tag,
+                metaBuffer);
         if (tagSection == NULL) tagSection = "<unknown>";
-        const char* tagName = get_camera_metadata_tag_name(tag);
+        const char* tagName = get_local_camera_metadata_tag_name(tag,
+                metaBuffer);
         if (tagName == NULL) tagName = "<unknown>";
 
         ALOGE("Error finding static metadata entry '%s.%s' (%x)",
@@ -1198,14 +1243,17 @@
     } else if (CC_UNLIKELY(
             (minCount != 0 && entry.count < minCount) ||
             (maxCount != 0 && entry.count > maxCount) ) ) {
-        const char* tagSection = get_camera_metadata_section_name(tag);
+        const char* tagSection = get_local_camera_metadata_section_name(tag,
+                metaBuffer);
         if (tagSection == NULL) tagSection = "<unknown>";
-        const char* tagName = get_camera_metadata_tag_name(tag);
+        const char* tagName = get_local_camera_metadata_tag_name(tag,
+                metaBuffer);
         if (tagName == NULL) tagName = "<unknown>";
         ALOGE("Malformed static metadata entry '%s.%s' (%x):"
                 "Expected between %zu and %zu values, but got %zu values",
                 tagSection, tagName, tag, minCount, maxCount, entry.count);
     }
+    info->unlock(metaBuffer);
 
     return entry;
 }
@@ -1389,30 +1437,43 @@
               *
               * Either way, in case of multiple ranges, break the tie by
               * selecting the smaller range.
+              *
+              * Always select range within 30fps if one exists.
               */
 
             // all ranges which have previewFps
             Vector<Range> candidateRanges;
+            Vector<Range> candidateFastRanges;
             for (i = 0; i < availableFrameRates.count; i+=2) {
                 Range r = {
                             availableFrameRates.data.i32[i],
                             availableFrameRates.data.i32[i+1]
                 };
+                if (!isFpsSupported(availablePreviewSizes,
+                        HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, r.max)) {
+                    continue;
+                }
 
                 if (r.min <= previewFps && previewFps <= r.max) {
-                    candidateRanges.push(r);
+                    if (r.max <= MAX_DEFAULT_FPS) {
+                        candidateRanges.push(r);
+                    } else {
+                        candidateFastRanges.push(r);
+                    }
                 }
             }
-            if (candidateRanges.isEmpty()) {
+            if (candidateRanges.isEmpty() && candidateFastRanges.isEmpty()) {
                 ALOGE("%s: Requested preview frame rate %d is not supported",
                         __FUNCTION__, previewFps);
                 return BAD_VALUE;
             }
-            // most applicable range with targetFps
-            Range bestRange = candidateRanges[0];
-            for (i = 1; i < candidateRanges.size(); ++i) {
-                Range r = candidateRanges[i];
 
+            // most applicable range with targetFps
+            Vector<Range>& ranges =
+                    candidateRanges.size() > 0 ? candidateRanges : candidateFastRanges;
+            Range bestRange = ranges[0];
+            for (i = 1; i < ranges.size(); ++i) {
+                Range r = ranges[i];
                 // Find by largest minIndex in recording mode
                 if (validatedParams.recordingHint) {
                     if (r.min > bestRange.min) {
@@ -1818,13 +1879,25 @@
         return BAD_VALUE;
     }
 
-    // AUTO_EXPOSURE_LOCK (always supported)
-    validatedParams.autoExposureLock = boolFromString(
-        newParams.get(CameraParameters::KEY_AUTO_EXPOSURE_LOCK));
+    if (autoExposureLockAvailable) {
+        validatedParams.autoExposureLock = boolFromString(
+            newParams.get(CameraParameters::KEY_AUTO_EXPOSURE_LOCK));
+    } else if (nullptr !=
+            newParams.get(CameraParameters::KEY_AUTO_EXPOSURE_LOCK)){
+        ALOGE("%s: Requested auto exposure lock is not supported",
+              __FUNCTION__);
+        return BAD_VALUE;
+    }
 
-    // AUTO_WHITEBALANCE_LOCK (always supported)
-    validatedParams.autoWhiteBalanceLock = boolFromString(
-        newParams.get(CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK));
+    if (autoWhiteBalanceLockAvailable) {
+        validatedParams.autoWhiteBalanceLock = boolFromString(
+                newParams.get(CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK));
+    } else if (nullptr !=
+           newParams.get(CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK)) {
+        ALOGE("%s: Requested auto whitebalance lock is not supported",
+              __FUNCTION__);
+        return BAD_VALUE;
+    }
 
     // METERING_AREAS
     size_t maxAeRegions = (size_t)staticInfo(ANDROID_CONTROL_MAX_REGIONS,
@@ -1844,12 +1917,14 @@
     }
 
     // ZOOM
-    validatedParams.zoom = newParams.getInt(CameraParameters::KEY_ZOOM);
-    if (validatedParams.zoom < 0
-                || validatedParams.zoom >= (int)NUM_ZOOM_STEPS) {
-        ALOGE("%s: Requested zoom level %d is not supported",
-                __FUNCTION__, validatedParams.zoom);
-        return BAD_VALUE;
+    if (zoomAvailable) {
+        validatedParams.zoom = newParams.getInt(CameraParameters::KEY_ZOOM);
+        if (validatedParams.zoom < 0
+                    || validatedParams.zoom >= (int)NUM_ZOOM_STEPS) {
+            ALOGE("%s: Requested zoom level %d is not supported",
+                    __FUNCTION__, validatedParams.zoom);
+            return BAD_VALUE;
+        }
     }
 
     // VIDEO_SIZE
@@ -1916,6 +1991,19 @@
     paramsFlattened = newParams.flatten();
     params = newParams;
 
+    slowJpegMode = false;
+    Size pictureSize = { pictureWidth, pictureHeight };
+    int64_t minFrameDurationNs = getJpegStreamMinFrameDurationNs(pictureSize);
+    if (previewFpsRange[1] > 1e9/minFrameDurationNs + FPS_MARGIN) {
+        slowJpegMode = true;
+    }
+    if (slowJpegMode || property_get_bool("camera.disable_zsl_mode", false)) {
+        allowZslMode = false;
+    } else {
+        allowZslMode = isZslReprocessPresent;
+    }
+    ALOGV("%s: allowZslMode: %d slowJpegMode %d", __FUNCTION__, allowZslMode, slowJpegMode);
+
     return OK;
 }
 
@@ -1970,10 +2058,12 @@
     }
     if (res != OK) return res;
 
-    uint8_t reqWbLock = autoWhiteBalanceLock ?
-            ANDROID_CONTROL_AWB_LOCK_ON : ANDROID_CONTROL_AWB_LOCK_OFF;
-    res = request->update(ANDROID_CONTROL_AWB_LOCK,
-            &reqWbLock, 1);
+    if (autoWhiteBalanceLockAvailable) {
+        uint8_t reqWbLock = autoWhiteBalanceLock ?
+                ANDROID_CONTROL_AWB_LOCK_ON : ANDROID_CONTROL_AWB_LOCK_OFF;
+        res = request->update(ANDROID_CONTROL_AWB_LOCK,
+                &reqWbLock, 1);
+    }
 
     res = request->update(ANDROID_CONTROL_EFFECT_MODE,
             &effectMode, 1);
@@ -2031,11 +2121,13 @@
             &reqAeMode, 1);
     if (res != OK) return res;
 
-    uint8_t reqAeLock = autoExposureLock ?
-            ANDROID_CONTROL_AE_LOCK_ON : ANDROID_CONTROL_AE_LOCK_OFF;
-    res = request->update(ANDROID_CONTROL_AE_LOCK,
-            &reqAeLock, 1);
-    if (res != OK) return res;
+    if (autoExposureLockAvailable) {
+        uint8_t reqAeLock = autoExposureLock ?
+                ANDROID_CONTROL_AE_LOCK_ON : ANDROID_CONTROL_AE_LOCK_OFF;
+        res = request->update(ANDROID_CONTROL_AE_LOCK,
+                &reqAeLock, 1);
+        if (res != OK) return res;
+    }
 
     res = request->update(ANDROID_CONTROL_AWB_MODE,
             &wbMode, 1);
@@ -2762,32 +2854,14 @@
     }
     sizes->clear();
 
-    if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
-        Vector<StreamConfiguration> scs = getStreamConfigurations();
-        for (size_t i=0; i < scs.size(); i++) {
-            const StreamConfiguration &sc = scs[i];
-            if (sc.isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT &&
-                    sc.format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED &&
-                    sc.width <= limit.width && sc.height <= limit.height) {
-                Size sz = {sc.width, sc.height};
-                sizes->push(sz);
-            }
-        }
-    } else {
-        const size_t SIZE_COUNT = sizeof(Size) / sizeof(int);
-        camera_metadata_ro_entry_t availableProcessedSizes =
-            staticInfo(ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES, SIZE_COUNT);
-        if (availableProcessedSizes.count < SIZE_COUNT) return BAD_VALUE;
-
-        Size filteredSize;
-        for (size_t i = 0; i < availableProcessedSizes.count; i += SIZE_COUNT) {
-            filteredSize.width = availableProcessedSizes.data.i32[i];
-            filteredSize.height = availableProcessedSizes.data.i32[i+1];
-                // Need skip the preview sizes that are too large.
-                if (filteredSize.width <= limit.width &&
-                        filteredSize.height <= limit.height) {
-                    sizes->push(filteredSize);
-                }
+    Vector<StreamConfiguration> scs = getStreamConfigurations();
+    for (size_t i=0; i < scs.size(); i++) {
+        const StreamConfiguration &sc = scs[i];
+        if (sc.isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT &&
+                sc.format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED &&
+                sc.width <= limit.width && sc.height <= limit.height) {
+            Size sz = {sc.width, sc.height};
+            sizes->push(sz);
         }
     }
 
@@ -2842,10 +2916,6 @@
     const int STREAM_HEIGHT_OFFSET = 2;
     const int STREAM_IS_INPUT_OFFSET = 3;
     Vector<StreamConfiguration> scs;
-    if (mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_2) {
-        ALOGE("StreamConfiguration is only valid after device HAL 3.2!");
-        return scs;
-    }
 
     camera_metadata_ro_entry_t availableStreamConfigs =
                 staticInfo(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS);
@@ -2861,37 +2931,10 @@
 }
 
 int64_t Parameters::getJpegStreamMinFrameDurationNs(Parameters::Size size) {
-    if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
-        return getMinFrameDurationNs(size, HAL_PIXEL_FORMAT_BLOB);
-    } else {
-        Vector<Size> availableJpegSizes = getAvailableJpegSizes();
-        size_t streamIdx = availableJpegSizes.size();
-        for (size_t i = 0; i < availableJpegSizes.size(); i++) {
-            if (availableJpegSizes[i].width == size.width &&
-                    availableJpegSizes[i].height == size.height) {
-                streamIdx = i;
-                break;
-            }
-        }
-        if (streamIdx != availableJpegSizes.size()) {
-            camera_metadata_ro_entry_t jpegMinDurations =
-                    staticInfo(ANDROID_SCALER_AVAILABLE_JPEG_MIN_DURATIONS);
-            if (streamIdx < jpegMinDurations.count) {
-                return jpegMinDurations.data.i64[streamIdx];
-            }
-        }
-    }
-    ALOGE("%s: cannot find min frame duration for jpeg size %dx%d",
-            __FUNCTION__, size.width, size.height);
-    return -1;
+    return getMinFrameDurationNs(size, HAL_PIXEL_FORMAT_BLOB);
 }
 
 int64_t Parameters::getMinFrameDurationNs(Parameters::Size size, int fmt) {
-    if (mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_2) {
-        ALOGE("Min frame duration for HAL 3.1 or lower is not supported");
-        return -1;
-    }
-
     const int STREAM_DURATION_SIZE = 4;
     const int STREAM_FORMAT_OFFSET = 0;
     const int STREAM_WIDTH_OFFSET = 1;
@@ -2913,13 +2956,7 @@
 }
 
 bool Parameters::isFpsSupported(const Vector<Size> &sizes, int format, int32_t fps) {
-    // Skip the check for older HAL version, as the min duration is not supported.
-    if (mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_2) {
-        return true;
-    }
-
     // Get min frame duration for each size and check if the given fps range can be supported.
-    const int32_t FPS_MARGIN = 1;
     for (size_t i = 0 ; i < sizes.size(); i++) {
         int64_t minFrameDuration = getMinFrameDurationNs(sizes[i], format);
         if (minFrameDuration <= 0) {
@@ -2939,48 +2976,29 @@
 
 SortedVector<int32_t> Parameters::getAvailableOutputFormats() {
     SortedVector<int32_t> outputFormats; // Non-duplicated output formats
-    if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
-        Vector<StreamConfiguration> scs = getStreamConfigurations();
-        for (size_t i = 0; i < scs.size(); i++) {
-            const StreamConfiguration &sc = scs[i];
-            if (sc.isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT) {
-                outputFormats.add(sc.format);
-            }
-        }
-    } else {
-        camera_metadata_ro_entry_t availableFormats = staticInfo(ANDROID_SCALER_AVAILABLE_FORMATS);
-        for (size_t i = 0; i < availableFormats.count; i++) {
-            outputFormats.add(availableFormats.data.i32[i]);
+    Vector<StreamConfiguration> scs = getStreamConfigurations();
+    for (size_t i = 0; i < scs.size(); i++) {
+        const StreamConfiguration &sc = scs[i];
+        if (sc.isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT) {
+            outputFormats.add(sc.format);
         }
     }
+
     return outputFormats;
 }
 
 Vector<Parameters::Size> Parameters::getAvailableJpegSizes() {
     Vector<Parameters::Size> jpegSizes;
-    if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
-        Vector<StreamConfiguration> scs = getStreamConfigurations();
-        for (size_t i = 0; i < scs.size(); i++) {
-            const StreamConfiguration &sc = scs[i];
-            if (sc.isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT &&
-                    sc.format == HAL_PIXEL_FORMAT_BLOB) {
-                Size sz = {sc.width, sc.height};
-                jpegSizes.add(sz);
-            }
-        }
-    } else {
-        const int JPEG_SIZE_ENTRY_COUNT = 2;
-        const int WIDTH_OFFSET = 0;
-        const int HEIGHT_OFFSET = 1;
-        camera_metadata_ro_entry_t availableJpegSizes =
-            staticInfo(ANDROID_SCALER_AVAILABLE_JPEG_SIZES);
-        for (size_t i = 0; i < availableJpegSizes.count; i+= JPEG_SIZE_ENTRY_COUNT) {
-            int width = availableJpegSizes.data.i32[i + WIDTH_OFFSET];
-            int height = availableJpegSizes.data.i32[i + HEIGHT_OFFSET];
-            Size sz = {width, height};
+    Vector<StreamConfiguration> scs = getStreamConfigurations();
+    for (size_t i = 0; i < scs.size(); i++) {
+        const StreamConfiguration &sc = scs[i];
+        if (sc.isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT &&
+                sc.format == HAL_PIXEL_FORMAT_BLOB) {
+            Size sz = {sc.width, sc.height};
             jpegSizes.add(sz);
         }
     }
+
     return jpegSizes;
 }
 
diff --git a/services/camera/libcameraservice/api1/client2/Parameters.h b/services/camera/libcameraservice/api1/client2/Parameters.h
index 687ac3e..bea867a 100644
--- a/services/camera/libcameraservice/api1/client2/Parameters.h
+++ b/services/camera/libcameraservice/api1/client2/Parameters.h
@@ -122,7 +122,9 @@
 
     int32_t exposureCompensation;
     bool autoExposureLock;
+    bool autoExposureLockAvailable;
     bool autoWhiteBalanceLock;
+    bool autoWhiteBalanceLockAvailable;
 
     // 3A region types, for use with ANDROID_CONTROL_MAX_REGIONS
     enum region_t {
@@ -135,6 +137,7 @@
     Vector<Area> meteringAreas;
 
     int zoom;
+    bool zoomAvailable;
 
     int videoWidth, videoHeight, videoFormat;
     android_dataspace videoDataSpace;
@@ -170,6 +173,8 @@
     // Whether the jpeg stream is slower than 30FPS and can slow down preview.
     // When slowJpegMode is true, allowZslMode must be false to avoid slowing down preview.
     bool slowJpegMode;
+    // Whether ZSL reprocess is supported by the device.
+    bool isZslReprocessPresent;
 
     // Overall camera state
     enum State {
@@ -196,6 +201,10 @@
     static const CONSTEXPR float ASPECT_RATIO_TOLERANCE = 0.001;
     // Threshold for slow jpeg mode
     static const int64_t kSlowJpegModeThreshold = 33400000LL; // 33.4 ms
+    // Margin for checking FPS
+    static const int32_t FPS_MARGIN = 1;
+    // Max FPS for default parameters
+    static const int32_t MAX_DEFAULT_FPS = 30;
 
     // Full static camera info, object owned by someone else, such as
     // Camera2Device.
@@ -426,7 +435,7 @@
     template<typename S, typename P>
     class BaseLock {
       public:
-        BaseLock(S &p):
+        explicit BaseLock(S &p):
                 mParameters(p.mParameters),
                 mSharedParameters(p) {
             mSharedParameters.mLock.lock();
diff --git a/services/camera/libcameraservice/api1/client2/StreamingProcessor.cpp b/services/camera/libcameraservice/api1/client2/StreamingProcessor.cpp
index de42fb2..d79e430 100644
--- a/services/camera/libcameraservice/api1/client2/StreamingProcessor.cpp
+++ b/services/camera/libcameraservice/api1/client2/StreamingProcessor.cpp
@@ -58,7 +58,7 @@
     deleteRecordingStream();
 }
 
-status_t StreamingProcessor::setPreviewWindow(sp<Surface> window) {
+status_t StreamingProcessor::setPreviewWindow(const sp<Surface>& window) {
     ATRACE_CALL();
     status_t res;
 
@@ -72,7 +72,7 @@
     return OK;
 }
 
-status_t StreamingProcessor::setRecordingWindow(sp<Surface> window) {
+status_t StreamingProcessor::setRecordingWindow(const sp<Surface>& window) {
     ATRACE_CALL();
     status_t res;
 
@@ -114,16 +114,11 @@
         }
 
         // Use CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG for ZSL streaming case.
-        if (client->getCameraDeviceVersion() >= CAMERA_DEVICE_API_VERSION_3_0) {
-            if (params.useZeroShutterLag() && !params.recordingHint) {
-                res = device->createDefaultRequest(CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG,
-                        &mPreviewRequest);
-            } else {
-                res = device->createDefaultRequest(CAMERA3_TEMPLATE_PREVIEW,
-                        &mPreviewRequest);
-            }
+        if (params.useZeroShutterLag() && !params.recordingHint) {
+            res = device->createDefaultRequest(
+                    CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG, &mPreviewRequest);
         } else {
-            res = device->createDefaultRequest(CAMERA2_TEMPLATE_PREVIEW,
+            res = device->createDefaultRequest(CAMERA3_TEMPLATE_PREVIEW,
                     &mPreviewRequest);
         }
 
diff --git a/services/camera/libcameraservice/api1/client2/StreamingProcessor.h b/services/camera/libcameraservice/api1/client2/StreamingProcessor.h
index 57e6389..22231d5 100644
--- a/services/camera/libcameraservice/api1/client2/StreamingProcessor.h
+++ b/services/camera/libcameraservice/api1/client2/StreamingProcessor.h
@@ -39,11 +39,11 @@
  */
 class StreamingProcessor : public virtual VirtualLightRefBase {
   public:
-    StreamingProcessor(sp<Camera2Client> client);
+    explicit StreamingProcessor(sp<Camera2Client> client);
     ~StreamingProcessor();
 
-    status_t setPreviewWindow(sp<Surface> window);
-    status_t setRecordingWindow(sp<Surface> window);
+    status_t setPreviewWindow(const sp<Surface>& window);
+    status_t setRecordingWindow(const sp<Surface>& window);
 
     bool haveValidPreviewWindow() const;
     bool haveValidRecordingWindow() const;
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp b/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
index b127472..9bc31b9 100644
--- a/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
+++ b/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
@@ -37,9 +37,91 @@
 #include "api1/client2/ZslProcessor.h"
 #include "device3/Camera3Device.h"
 
+typedef android::RingBufferConsumer::PinnedBufferItem PinnedBufferItem;
+
 namespace android {
 namespace camera2 {
 
+namespace {
+struct TimestampFinder : public RingBufferConsumer::RingBufferComparator {
+    typedef RingBufferConsumer::BufferInfo BufferInfo;
+
+    enum {
+        SELECT_I1 = -1,
+        SELECT_I2 = 1,
+        SELECT_NEITHER = 0,
+    };
+
+    explicit TimestampFinder(nsecs_t timestamp) : mTimestamp(timestamp) {}
+    ~TimestampFinder() {}
+
+    template <typename T>
+    static void swap(T& a, T& b) {
+        T tmp = a;
+        a = b;
+        b = tmp;
+    }
+
+    /**
+     * Try to find the best candidate for a ZSL buffer.
+     * Match priority from best to worst:
+     *  1) Timestamps match.
+     *  2) Timestamp is closest to the needle (and lower).
+     *  3) Timestamp is closest to the needle (and higher).
+     *
+     */
+    virtual int compare(const BufferInfo *i1,
+                        const BufferInfo *i2) const {
+        // Try to select non-null object first.
+        if (i1 == NULL) {
+            return SELECT_I2;
+        } else if (i2 == NULL) {
+            return SELECT_I1;
+        }
+
+        // Best result: timestamp is identical
+        if (i1->mTimestamp == mTimestamp) {
+            return SELECT_I1;
+        } else if (i2->mTimestamp == mTimestamp) {
+            return SELECT_I2;
+        }
+
+        const BufferInfo* infoPtrs[2] = {
+            i1,
+            i2
+        };
+        int infoSelectors[2] = {
+            SELECT_I1,
+            SELECT_I2
+        };
+
+        // Order i1,i2 so that always i1.timestamp < i2.timestamp
+        if (i1->mTimestamp > i2->mTimestamp) {
+            swap(infoPtrs[0], infoPtrs[1]);
+            swap(infoSelectors[0], infoSelectors[1]);
+        }
+
+        // Second best: closest (lower) timestamp
+        if (infoPtrs[1]->mTimestamp < mTimestamp) {
+            return infoSelectors[1];
+        } else if (infoPtrs[0]->mTimestamp < mTimestamp) {
+            return infoSelectors[0];
+        }
+
+        // Worst: closest (higher) timestamp
+        return infoSelectors[0];
+
+        /**
+         * The above cases should cover all the possibilities,
+         * and we get an 'empty' result only if the ring buffer
+         * was empty itself
+         */
+    }
+
+    const nsecs_t mTimestamp;
+}; // struct TimestampFinder
+} // namespace anonymous
+
 ZslProcessor::ZslProcessor(
     sp<Camera2Client> client,
     wp<CaptureSequencer> sequencer):
@@ -50,8 +132,14 @@
         mSequencer(sequencer),
         mId(client->getCameraId()),
         mZslStreamId(NO_STREAM),
+        mInputStreamId(NO_STREAM),
         mFrameListHead(0),
-        mHasFocuser(false) {
+        mHasFocuser(false),
+        mInputBuffer(nullptr),
+        mProducer(nullptr),
+        mInputProducer(nullptr),
+        mInputProducerSlot(-1),
+        mBuffersToDetach(0) {
     // Initialize buffer queue and frame list based on pipeline max depth.
     size_t pipelineMaxDepth = kDefaultMaxPipelineDepth;
     if (client != 0) {
@@ -83,7 +171,6 @@
     mFrameListDepth = pipelineMaxDepth;
     mBufferQueueDepth = mFrameListDepth + 1;
 
-
     mZslQueue.insertAt(0, mBufferQueueDepth);
     mFrameList.insertAt(0, mFrameListDepth);
     sp<CaptureSequencer> captureSequencer = mSequencer.promote();
@@ -144,7 +231,7 @@
         return INVALID_OPERATION;
     }
 
-    if (mZslStreamId != NO_STREAM) {
+    if ((mZslStreamId != NO_STREAM) || (mInputStreamId != NO_STREAM)) {
         // Check if stream parameters have to change
         uint32_t currentWidth, currentHeight;
         res = device->getStreamInfo(mZslStreamId,
@@ -157,21 +244,57 @@
         }
         if (currentWidth != (uint32_t)params.fastInfo.arrayWidth ||
                 currentHeight != (uint32_t)params.fastInfo.arrayHeight) {
-            ALOGV("%s: Camera %d: Deleting stream %d since the buffer "
-                  "dimensions changed",
-                __FUNCTION__, client->getCameraId(), mZslStreamId);
-            res = device->deleteStream(mZslStreamId);
-            if (res == -EBUSY) {
-                ALOGV("%s: Camera %d: Device is busy, call updateStream again "
-                      " after it becomes idle", __FUNCTION__, mId);
-                return res;
-            } else if(res != OK) {
-                ALOGE("%s: Camera %d: Unable to delete old output stream "
-                        "for ZSL: %s (%d)", __FUNCTION__,
-                        client->getCameraId(), strerror(-res), res);
-                return res;
+            if (mZslStreamId != NO_STREAM) {
+                ALOGV("%s: Camera %d: Deleting stream %d since the buffer "
+                      "dimensions changed",
+                    __FUNCTION__, client->getCameraId(), mZslStreamId);
+                res = device->deleteStream(mZslStreamId);
+                if (res == -EBUSY) {
+                    ALOGV("%s: Camera %d: Device is busy, call updateStream again "
+                          " after it becomes idle", __FUNCTION__, mId);
+                    return res;
+                } else if(res != OK) {
+                    ALOGE("%s: Camera %d: Unable to delete old output stream "
+                            "for ZSL: %s (%d)", __FUNCTION__,
+                            client->getCameraId(), strerror(-res), res);
+                    return res;
+                }
+                mZslStreamId = NO_STREAM;
             }
-            mZslStreamId = NO_STREAM;
+
+            if (mInputStreamId != NO_STREAM) {
+                ALOGV("%s: Camera %d: Deleting stream %d since the buffer "
+                      "dimensions changed",
+                    __FUNCTION__, client->getCameraId(), mInputStreamId);
+                res = device->deleteStream(mInputStreamId);
+                if (res == -EBUSY) {
+                    ALOGV("%s: Camera %d: Device is busy, call updateStream again "
+                          " after it becomes idle", __FUNCTION__, mId);
+                    return res;
+                } else if(res != OK) {
+                    ALOGE("%s: Camera %d: Unable to delete old output stream "
+                            "for ZSL: %s (%d)", __FUNCTION__,
+                            client->getCameraId(), strerror(-res), res);
+                    return res;
+                }
+                mInputStreamId = NO_STREAM;
+            }
+            if (nullptr != mInputProducer.get()) {
+                mInputProducer->disconnect(NATIVE_WINDOW_API_CPU);
+                mInputProducer.clear();
+            }
+        }
+    }
+
+    if (mInputStreamId == NO_STREAM) {
+        res = device->createInputStream(params.fastInfo.arrayWidth,
+            params.fastInfo.arrayHeight, HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+            &mInputStreamId);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Can't create input stream: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    strerror(-res), res);
+            return res;
         }
     }
 
@@ -179,21 +302,23 @@
         // Create stream for HAL production
         // TODO: Sort out better way to select resolution for ZSL
 
-        // Note that format specified internally in Camera3ZslStream
-        res = device->createZslStream(
-                params.fastInfo.arrayWidth, params.fastInfo.arrayHeight,
-                mBufferQueueDepth,
-                &mZslStreamId,
-                &mZslStream);
+        sp<IGraphicBufferProducer> producer;
+        sp<IGraphicBufferConsumer> consumer;
+        BufferQueue::createBufferQueue(&producer, &consumer);
+        mProducer = new RingBufferConsumer(consumer, GRALLOC_USAGE_HW_CAMERA_ZSL,
+            mBufferQueueDepth);
+        mProducer->setName(String8("Camera2-ZslRingBufferConsumer"));
+        sp<Surface> outSurface = new Surface(producer);
+
+        res = device->createStream(outSurface, params.fastInfo.arrayWidth,
+            params.fastInfo.arrayHeight, HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+            HAL_DATASPACE_UNKNOWN, CAMERA3_STREAM_ROTATION_0, &mZslStreamId);
         if (res != OK) {
             ALOGE("%s: Camera %d: Can't create ZSL stream: "
                     "%s (%d)", __FUNCTION__, client->getCameraId(),
                     strerror(-res), res);
             return res;
         }
-
-        // Only add the camera3 buffer listener when the stream is created.
-        mZslStream->addBufferListener(this);
     }
 
     client->registerFrameListener(Camera2Client::kPreviewRequestIdStart,
@@ -207,23 +332,27 @@
 status_t ZslProcessor::deleteStream() {
     ATRACE_CALL();
     status_t res;
+    sp<Camera3Device> device = nullptr;
+    sp<Camera2Client> client = nullptr;
 
     Mutex::Autolock l(mInputMutex);
 
-    if (mZslStreamId != NO_STREAM) {
-        sp<Camera2Client> client = mClient.promote();
+    if ((mZslStreamId != NO_STREAM) || (mInputStreamId != NO_STREAM)) {
+        client = mClient.promote();
         if (client == 0) {
             ALOGE("%s: Camera %d: Client does not exist", __FUNCTION__, mId);
             return INVALID_OPERATION;
         }
 
-        sp<Camera3Device> device =
+        device =
             reinterpret_cast<Camera3Device*>(client->getCameraDevice().get());
         if (device == 0) {
             ALOGE("%s: Camera %d: Device does not exist", __FUNCTION__, mId);
             return INVALID_OPERATION;
         }
+    }
 
+    if (mZslStreamId != NO_STREAM) {
         res = device->deleteStream(mZslStreamId);
         if (res != OK) {
             ALOGE("%s: Camera %d: Cannot delete ZSL output stream %d: "
@@ -234,6 +363,23 @@
 
         mZslStreamId = NO_STREAM;
     }
+    if (mInputStreamId != NO_STREAM) {
+        res = device->deleteStream(mInputStreamId);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Cannot delete input stream %d: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    mInputStreamId, strerror(-res), res);
+            return res;
+        }
+
+        mInputStreamId = NO_STREAM;
+    }
+
+    if (nullptr != mInputProducer.get()) {
+        mInputProducer->disconnect(NATIVE_WINDOW_API_CPU);
+        mInputProducer.clear();
+    }
+
     return OK;
 }
 
@@ -282,6 +428,50 @@
     return OK;
 }
 
+void ZslProcessor::notifyInputReleased() {
+    Mutex::Autolock l(mInputMutex);
+
+    mBuffersToDetach++;
+    mBuffersToDetachSignal.signal();
+}
+
+void ZslProcessor::doNotifyInputReleasedLocked() {
+    assert(nullptr != mInputBuffer.get());
+    assert(nullptr != mInputProducer.get());
+
+    sp<GraphicBuffer> gb;
+    sp<Fence> fence;
+    auto rc = mInputProducer->detachNextBuffer(&gb, &fence);
+    if (NO_ERROR != rc) {
+        ALOGE("%s: Failed to detach buffer from input producer: %d",
+            __FUNCTION__, rc);
+        return;
+    }
+
+    BufferItem &item = mInputBuffer->getBufferItem();
+    sp<GraphicBuffer> inputBuffer = item.mGraphicBuffer;
+    if (gb->handle != inputBuffer->handle) {
+        ALOGE("%s: Input mismatch, expected buffer %p received %p", __FUNCTION__,
+            inputBuffer->handle, gb->handle);
+        return;
+    }
+
+    mInputBuffer.clear();
+    ALOGV("%s: Memory optimization, clearing ZSL queue",
+          __FUNCTION__);
+    clearZslResultQueueLocked();
+
+    // Required so we accept more ZSL requests
+    mState = RUNNING;
+}
+
+void ZslProcessor::InputProducerListener::onBufferReleased() {
+    sp<ZslProcessor> parent = mParent.promote();
+    if (nullptr != parent.get()) {
+        parent->notifyInputReleased();
+    }
+}
+
 status_t ZslProcessor::pushToReprocess(int32_t requestId) {
     ALOGV("%s: Send in reprocess request with id %d",
             __FUNCTION__, requestId);
@@ -302,15 +492,38 @@
     nsecs_t candidateTimestamp = getCandidateTimestampLocked(&metadataIdx);
 
     if (candidateTimestamp == -1) {
-        ALOGE("%s: Could not find good candidate for ZSL reprocessing",
+        ALOGV("%s: Could not find good candidate for ZSL reprocessing",
               __FUNCTION__);
         return NOT_ENOUGH_DATA;
+    } else {
+        ALOGV("%s: Found good ZSL candidate idx: %u",
+            __FUNCTION__, (unsigned int) metadataIdx);
     }
 
-    res = mZslStream->enqueueInputBufferByTimestamp(candidateTimestamp,
-                                                    /*actualTimestamp*/NULL);
+    if (nullptr == mInputProducer.get()) {
+        res = client->getCameraDevice()->getInputBufferProducer(
+            &mInputProducer);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Unable to retrieve input producer: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    strerror(-res), res);
+            return res;
+        }
 
-    if (res == mZslStream->NO_BUFFER_AVAILABLE) {
+        IGraphicBufferProducer::QueueBufferOutput output;
+        res = mInputProducer->connect(new InputProducerListener(this),
+            NATIVE_WINDOW_API_CPU, false, &output);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Unable to connect to input producer: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    strerror(-res), res);
+            return res;
+        }
+    }
+
+    res = enqueueInputBufferByTimestamp(candidateTimestamp,
+        /*actualTimestamp*/NULL);
+    if (res == NO_BUFFER_AVAILABLE) {
         ALOGV("%s: No ZSL buffers yet", __FUNCTION__);
         return NOT_ENOUGH_DATA;
     } else if (res != OK) {
@@ -348,7 +561,7 @@
         }
 
         int32_t inputStreams[1] =
-                { mZslStreamId };
+                { mInputStreamId };
         res = request.update(ANDROID_REQUEST_INPUT_STREAMS,
                 inputStreams, 1);
         if (res != OK) {
@@ -428,6 +641,70 @@
     return OK;
 }
 
+status_t ZslProcessor::enqueueInputBufferByTimestamp(
+        nsecs_t timestamp,
+        nsecs_t* actualTimestamp) {
+
+    TimestampFinder timestampFinder = TimestampFinder(timestamp);
+
+    mInputBuffer = mProducer->pinSelectedBuffer(timestampFinder,
+        /*waitForFence*/false);
+
+    if (nullptr == mInputBuffer.get()) {
+        ALOGE("%s: No ZSL buffers were available yet", __FUNCTION__);
+        return NO_BUFFER_AVAILABLE;
+    }
+
+    nsecs_t actual = mInputBuffer->getBufferItem().mTimestamp;
+
+    if (actual != timestamp) {
+        // TODO: This is problematic, the metadata queue timestamp should
+        //       usually have a corresponding ZSL buffer with the same timestamp.
+        //       If this is not the case, then it is possible that we will use
+        //       a ZSL buffer from a different request, which can result in
+        //       side effects during the reprocess pass.
+        ALOGW("%s: ZSL buffer candidate search didn't find an exact match --"
+              " requested timestamp = %" PRId64 ", actual timestamp = %" PRId64,
+              __FUNCTION__, timestamp, actual);
+    }
+
+    if (nullptr != actualTimestamp) {
+        *actualTimestamp = actual;
+    }
+
+    BufferItem &item = mInputBuffer->getBufferItem();
+    auto rc = mInputProducer->attachBuffer(&mInputProducerSlot,
+        item.mGraphicBuffer);
+    if (OK != rc) {
+        ALOGE("%s: Failed to attach input ZSL buffer to producer: %d",
+            __FUNCTION__, rc);
+        return rc;
+    }
+
+    IGraphicBufferProducer::QueueBufferOutput output;
+    IGraphicBufferProducer::QueueBufferInput input(item.mTimestamp,
+            item.mIsAutoTimestamp, item.mDataSpace, item.mCrop,
+            item.mScalingMode, item.mTransform, item.mFence);
+    rc = mInputProducer->queueBuffer(mInputProducerSlot, input, &output);
+    if (OK != rc) {
+        ALOGE("%s: Failed to queue ZSL buffer to producer: %d",
+            __FUNCTION__, rc);
+        return rc;
+    }
+
+    return rc;
+}
+
+status_t ZslProcessor::clearInputRingBufferLocked(nsecs_t* latestTimestamp) {
+
+    if (nullptr != latestTimestamp) {
+        *latestTimestamp = mProducer->getLatestTimestamp();
+    }
+    mInputBuffer.clear();
+
+    return mProducer->clear();
+}
+
 status_t ZslProcessor::clearZslQueue() {
     Mutex::Autolock l(mInputMutex);
     // If in middle of capture, can't clear out queue
@@ -437,10 +714,10 @@
 }
 
 status_t ZslProcessor::clearZslQueueLocked() {
-    if (mZslStream != 0) {
+    if (NO_STREAM != mZslStreamId) {
         // clear result metadata list first.
         clearZslResultQueueLocked();
-        return mZslStream->clearInputRingBuffer(&mLatestClearedBufferTimestamp);
+        return clearInputRingBufferLocked(&mLatestClearedBufferTimestamp);
     }
     return OK;
 }
@@ -465,9 +742,18 @@
 }
 
 bool ZslProcessor::threadLoop() {
-    // TODO: remove dependency on thread. For now, shut thread down right
-    // away.
-    return false;
+    Mutex::Autolock l(mInputMutex);
+
+    if (mBuffersToDetach == 0) {
+        status_t res = mBuffersToDetachSignal.waitRelative(mInputMutex, kWaitDuration);
+        if (res == TIMED_OUT) return true;
+    }
+    while (mBuffersToDetach > 0) {
+        doNotifyInputReleasedLocked();
+        mBuffersToDetach--;
+    }
+
+    return true;
 }
 
 void ZslProcessor::dumpZslQueue(int fd) const {
@@ -630,46 +916,5 @@
     return minTimestamp;
 }
 
-void ZslProcessor::onBufferAcquired(const BufferInfo& /*bufferInfo*/) {
-    // Intentionally left empty
-    // Although theoretically we could use this to get better dump info
-}
-
-void ZslProcessor::onBufferReleased(const BufferInfo& bufferInfo) {
-
-    // ignore output buffers
-    if (bufferInfo.mOutput) {
-        return;
-    }
-
-    // Lock mutex only once we know this is an input buffer returned to avoid
-    // potential deadlock
-    Mutex::Autolock l(mInputMutex);
-    // TODO: Verify that the buffer is in our queue by looking at timestamp
-    // theoretically unnecessary unless we change the following assumptions:
-    // -- only 1 buffer reprocessed at a time (which is the case now)
-
-    // Erase entire ZSL queue since we've now completed the capture and preview
-    // is stopped.
-    //
-    // We need to guarantee that if we do two back-to-back captures,
-    // the second won't use a buffer that's older/the same as the first, which
-    // is theoretically possible if we don't clear out the queue and the
-    // selection criteria is something like 'newest'. Clearing out the result
-    // metadata queue on a completed capture ensures we'll only use new timestamp.
-    // Calling clearZslQueueLocked is a guaranteed deadlock because this callback
-    // holds the Camera3Stream internal lock (mLock), and clearZslQueueLocked requires
-    // to hold the same lock.
-    // TODO: need figure out a way to clear the Zsl buffer queue properly. Right now
-    // it is safe not to do so, as back to back ZSL capture requires stop and start
-    // preview, which will flush ZSL queue automatically.
-    ALOGV("%s: Memory optimization, clearing ZSL queue",
-          __FUNCTION__);
-    clearZslResultQueueLocked();
-
-    // Required so we accept more ZSL requests
-    mState = RUNNING;
-}
-
 }; // namespace camera2
 }; // namespace android
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessor.h b/services/camera/libcameraservice/api1/client2/ZslProcessor.h
index 86c06c6..1db2403 100644
--- a/services/camera/libcameraservice/api1/client2/ZslProcessor.h
+++ b/services/camera/libcameraservice/api1/client2/ZslProcessor.h
@@ -24,10 +24,11 @@
 #include <utils/Condition.h>
 #include <gui/BufferItem.h>
 #include <gui/BufferItemConsumer.h>
+#include <gui/RingBufferConsumer.h>
+#include <gui/IProducerListener.h>
 #include <camera/CameraMetadata.h>
 
 #include "api1/client2/FrameProcessor.h"
-#include "device3/Camera3ZslStream.h"
 
 namespace android {
 
@@ -42,7 +43,6 @@
  * ZSL queue processing for HALv3.0 or newer
  */
 class ZslProcessor :
-                    public camera3::Camera3StreamBufferListener,
             virtual public Thread,
             virtual public FrameProcessor::FilteredListener {
   public:
@@ -81,19 +81,18 @@
 
     void dump(int fd, const Vector<String16>& args) const;
 
-  protected:
-    /**
-     **********************************************
-     * Camera3StreamBufferListener implementation *
-     **********************************************
-     */
-    typedef camera3::Camera3StreamBufferListener::BufferInfo BufferInfo;
-    // Buffer was acquired by the HAL
-    virtual void onBufferAcquired(const BufferInfo& bufferInfo);
-    // Buffer was released by the HAL
-    virtual void onBufferReleased(const BufferInfo& bufferInfo);
-
   private:
+
+    class InputProducerListener : public BnProducerListener {
+    public:
+        InputProducerListener(wp<ZslProcessor> parent) : mParent(parent) {}
+        virtual void onBufferReleased();
+        virtual bool needsReleaseNotify() { return true; }
+
+    private:
+        wp<ZslProcessor> mParent;
+    };
+
     static const nsecs_t kWaitDuration = 10000000; // 10 ms
     nsecs_t mLatestClearedBufferTimestamp;
 
@@ -102,6 +101,8 @@
         LOCKED
     } mState;
 
+    enum { NO_BUFFER_AVAILABLE = BufferQueue::NO_BUFFER_AVAILABLE };
+
     wp<Camera2Client> mClient;
     wp<CaptureSequencer> mSequencer;
 
@@ -114,7 +115,7 @@
     };
 
     int mZslStreamId;
-    sp<camera3::Camera3ZslStream> mZslStream;
+    int mInputStreamId;
 
     struct ZslPair {
         BufferItem buffer;
@@ -135,6 +136,15 @@
 
     bool mHasFocuser;
 
+    // Input buffer queued into HAL
+    sp<RingBufferConsumer::PinnedBufferItem> mInputBuffer;
+    sp<RingBufferConsumer>                   mProducer;
+    sp<IGraphicBufferProducer>               mInputProducer;
+    int                                      mInputProducerSlot;
+
+    Condition                                mBuffersToDetachSignal;
+    int                                      mBuffersToDetach;
+
     virtual bool threadLoop();
 
     status_t clearZslQueueLocked();
@@ -145,6 +155,12 @@
 
     nsecs_t getCandidateTimestampLocked(size_t* metadataIdx) const;
 
+    status_t enqueueInputBufferByTimestamp( nsecs_t timestamp,
+        nsecs_t* actualTimestamp);
+    status_t clearInputRingBufferLocked(nsecs_t* latestTimestamp);
+    void notifyInputReleased();
+    void doNotifyInputReleasedLocked();
+
     bool isFixedFocusMode(uint8_t afMode) const;
 
     // Update the post-processing metadata with the default still capture request template
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
index a7fe5e7..0429e7f 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
@@ -46,7 +46,7 @@
         const sp<CameraService>& cameraService,
         const sp<hardware::camera2::ICameraDeviceCallbacks>& remoteCallback,
         const String16& clientPackageName,
-        int cameraId,
+        const String8& cameraId,
         int cameraFacing,
         int clientPid,
         uid_t clientUid,
@@ -67,7 +67,7 @@
 CameraDeviceClient::CameraDeviceClient(const sp<CameraService>& cameraService,
         const sp<hardware::camera2::ICameraDeviceCallbacks>& remoteCallback,
         const String16& clientPackageName,
-        int cameraId,
+        const String8& cameraId,
         int cameraFacing,
         int clientPid,
         uid_t clientUid,
@@ -79,22 +79,26 @@
     mRequestIdCounter(0) {
 
     ATRACE_CALL();
-    ALOGI("CameraDeviceClient %d: Opened", cameraId);
+    ALOGI("CameraDeviceClient %s: Opened", cameraId.string());
 }
 
-status_t CameraDeviceClient::initialize(CameraModule *module)
-{
+status_t CameraDeviceClient::initialize(sp<CameraProviderManager> manager) {
+    return initializeImpl(manager);
+}
+
+template<typename TProviderPtr>
+status_t CameraDeviceClient::initializeImpl(TProviderPtr providerPtr) {
     ATRACE_CALL();
     status_t res;
 
-    res = Camera2ClientBase::initialize(module);
+    res = Camera2ClientBase::initialize(providerPtr);
     if (res != OK) {
         return res;
     }
 
     String8 threadName;
     mFrameProcessor = new FrameProcessorBase(mDevice);
-    threadName = String8::format("CDU-%d-FrameProc", mCameraId);
+    threadName = String8::format("CDU-%s-FrameProc", mCameraIdStr.string());
     mFrameProcessor->run(threadName.string());
 
     mFrameProcessor->registerListener(FRAME_PROCESSOR_LISTENER_MIN_ID,
@@ -138,25 +142,27 @@
     }
 
     if (requests.empty()) {
-        ALOGE("%s: Camera %d: Sent null request. Rejecting request.",
-              __FUNCTION__, mCameraId);
+        ALOGE("%s: Camera %s: Sent null request. Rejecting request.",
+              __FUNCTION__, mCameraIdStr.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, "Empty request list");
     }
 
     List<const CameraMetadata> metadataRequestList;
+    std::list<const SurfaceMap> surfaceMapList;
     submitInfo->mRequestId = mRequestIdCounter;
     uint32_t loopCounter = 0;
 
     for (auto&& request: requests) {
         if (request.mIsReprocess) {
             if (!mInputStream.configured) {
-                ALOGE("%s: Camera %d: no input stream is configured.", __FUNCTION__, mCameraId);
+                ALOGE("%s: Camera %s: no input stream is configured.", __FUNCTION__,
+                        mCameraIdStr.string());
                 return STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                        "No input configured for camera %d but request is for reprocessing",
-                        mCameraId);
+                        "No input configured for camera %s but request is for reprocessing",
+                        mCameraIdStr.string());
             } else if (streaming) {
-                ALOGE("%s: Camera %d: streaming reprocess requests not supported.", __FUNCTION__,
-                        mCameraId);
+                ALOGE("%s: Camera %s: streaming reprocess requests not supported.", __FUNCTION__,
+                        mCameraIdStr.string());
                 return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
                         "Repeating reprocess requests not supported");
             }
@@ -164,13 +170,13 @@
 
         CameraMetadata metadata(request.mMetadata);
         if (metadata.isEmpty()) {
-            ALOGE("%s: Camera %d: Sent empty metadata packet. Rejecting request.",
-                   __FUNCTION__, mCameraId);
+            ALOGE("%s: Camera %s: Sent empty metadata packet. Rejecting request.",
+                   __FUNCTION__, mCameraIdStr.string());
             return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
                     "Request settings are empty");
         } else if (request.mSurfaceList.isEmpty()) {
-            ALOGE("%s: Camera %d: Requests must have at least one surface target. "
-                    "Rejecting request.", __FUNCTION__, mCameraId);
+            ALOGE("%s: Camera %s: Requests must have at least one surface target. "
+                    "Rejecting request.", __FUNCTION__, mCameraIdStr.string());
             return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
                     "Request has no output targets");
         }
@@ -182,11 +188,11 @@
         }
 
         /**
-         * Write in the output stream IDs which we calculate from
-         * the capture request's list of surface targets
+         * Write in the output stream IDs and map from stream ID to surface ID
+         * which we calculate from the capture request's list of surface target
          */
+        SurfaceMap surfaceMap;
         Vector<int32_t> outputStreamIds;
-        outputStreamIds.setCapacity(request.mSurfaceList.size());
         for (sp<Surface> surface : request.mSurfaceList) {
             if (surface == 0) continue;
 
@@ -195,17 +201,23 @@
 
             // Trying to submit request with surface that wasn't created
             if (idx == NAME_NOT_FOUND) {
-                ALOGE("%s: Camera %d: Tried to submit a request with a surface that"
+                ALOGE("%s: Camera %s: Tried to submit a request with a surface that"
                         " we have not called createStream on",
-                        __FUNCTION__, mCameraId);
+                        __FUNCTION__, mCameraIdStr.string());
                 return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
                         "Request targets Surface that is not part of current capture session");
             }
 
-            int streamId = mStreamMap.valueAt(idx);
-            outputStreamIds.push_back(streamId);
-            ALOGV("%s: Camera %d: Appending output stream %d to request",
-                    __FUNCTION__, mCameraId, streamId);
+            const StreamSurfaceId& streamSurfaceId = mStreamMap.valueAt(idx);
+            if (surfaceMap.find(streamSurfaceId.streamId()) == surfaceMap.end()) {
+                surfaceMap[streamSurfaceId.streamId()] = std::vector<size_t>();
+                outputStreamIds.push_back(streamSurfaceId.streamId());
+            }
+            surfaceMap[streamSurfaceId.streamId()].push_back(streamSurfaceId.surfaceId());
+
+            ALOGV("%s: Camera %s: Appending output stream %d surface %d to request",
+                    __FUNCTION__, mCameraIdStr.string(), streamSurfaceId.streamId(),
+                    streamSurfaceId.surfaceId());
         }
 
         metadata.update(ANDROID_REQUEST_OUTPUT_STREAMS, &outputStreamIds[0],
@@ -217,19 +229,22 @@
 
         metadata.update(ANDROID_REQUEST_ID, &(submitInfo->mRequestId), /*size*/1);
         loopCounter++; // loopCounter starts from 1
-        ALOGV("%s: Camera %d: Creating request with ID %d (%d of %zu)",
-              __FUNCTION__, mCameraId, submitInfo->mRequestId, loopCounter, requests.size());
+        ALOGV("%s: Camera %s: Creating request with ID %d (%d of %zu)",
+                __FUNCTION__, mCameraIdStr.string(), submitInfo->mRequestId,
+                loopCounter, requests.size());
 
         metadataRequestList.push_back(metadata);
+        surfaceMapList.push_back(surfaceMap);
     }
     mRequestIdCounter++;
 
     if (streaming) {
-        err = mDevice->setStreamingRequestList(metadataRequestList, &(submitInfo->mLastFrameNumber));
+        err = mDevice->setStreamingRequestList(metadataRequestList, surfaceMapList,
+                &(submitInfo->mLastFrameNumber));
         if (err != OK) {
             String8 msg = String8::format(
-                "Camera %d:  Got error %s (%d) after trying to set streaming request",
-                mCameraId, strerror(-err), err);
+                "Camera %s:  Got error %s (%d) after trying to set streaming request",
+                mCameraIdStr.string(), strerror(-err), err);
             ALOGE("%s: %s", __FUNCTION__, msg.string());
             res = STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION,
                     msg.string());
@@ -238,11 +253,12 @@
             mStreamingRequestId = submitInfo->mRequestId;
         }
     } else {
-        err = mDevice->captureList(metadataRequestList, &(submitInfo->mLastFrameNumber));
+        err = mDevice->captureList(metadataRequestList, surfaceMapList,
+                &(submitInfo->mLastFrameNumber));
         if (err != OK) {
             String8 msg = String8::format(
-                "Camera %d: Got error %s (%d) after trying to submit capture request",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Got error %s (%d) after trying to submit capture request",
+                mCameraIdStr.string(), strerror(-err), err);
             ALOGE("%s: %s", __FUNCTION__, msg.string());
             res = STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION,
                     msg.string());
@@ -250,7 +266,7 @@
         ALOGV("%s: requestId = %d ", __FUNCTION__, submitInfo->mRequestId);
     }
 
-    ALOGV("%s: Camera %d: End of function", __FUNCTION__, mCameraId);
+    ALOGV("%s: Camera %s: End of function", __FUNCTION__, mCameraIdStr.string());
     return res;
 }
 
@@ -274,8 +290,8 @@
 
     Mutex::Autolock idLock(mStreamingRequestIdLock);
     if (mStreamingRequestId != requestId) {
-        String8 msg = String8::format("Camera %d: Canceling request ID %d doesn't match "
-                "current request ID %d", mCameraId, requestId, mStreamingRequestId);
+        String8 msg = String8::format("Camera %s: Canceling request ID %d doesn't match "
+                "current request ID %d", mCameraIdStr.string(), requestId, mStreamingRequestId);
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
@@ -283,13 +299,13 @@
     err = mDevice->clearStreamingRequest(lastFrameNumber);
 
     if (err == OK) {
-        ALOGV("%s: Camera %d: Successfully cleared streaming request",
-              __FUNCTION__, mCameraId);
+        ALOGV("%s: Camera %s: Successfully cleared streaming request",
+                __FUNCTION__, mCameraIdStr.string());
         mStreamingRequestId = REQUEST_ID_NONE;
     } else {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error clearing streaming request: %s (%d)",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Error clearing streaming request: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
     }
 
     return res;
@@ -301,9 +317,10 @@
     return binder::Status::ok();
 }
 
-binder::Status CameraDeviceClient::endConfigure(bool isConstrainedHighSpeed) {
-    ALOGV("%s: ending configure (%d input stream, %zu output streams)",
-            __FUNCTION__, mInputStream.configured ? 1 : 0, mStreamMap.size());
+binder::Status CameraDeviceClient::endConfigure(int operatingMode) {
+    ALOGV("%s: ending configure (%d input stream, %zu output surfaces)",
+            __FUNCTION__, mInputStream.configured ? 1 : 0,
+            mStreamMap.size());
 
     binder::Status res;
     if (!(res = checkPidStatus(__FUNCTION__)).isOk()) return res;
@@ -314,7 +331,16 @@
         return STATUS_ERROR(CameraService::ERROR_DISCONNECTED, "Camera device no longer alive");
     }
 
+    if (operatingMode < 0) {
+        String8 msg = String8::format(
+            "Camera %s: Invalid operating mode %d requested", mCameraIdStr.string(), operatingMode);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
+                msg.string());
+    }
+
     // Sanitize the high speed session against necessary capability bit.
+    bool isConstrainedHighSpeed = (operatingMode == ICameraDeviceUser::CONSTRAINED_HIGH_SPEED_MODE);
     if (isConstrainedHighSpeed) {
         CameraMetadata staticInfo = mDevice->info();
         camera_metadata_entry_t entry = staticInfo.find(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
@@ -328,23 +354,23 @@
         }
         if (!isConstrainedHighSpeedSupported) {
             String8 msg = String8::format(
-                "Camera %d: Try to create a constrained high speed configuration on a device"
-                " that doesn't support it.", mCameraId);
+                "Camera %s: Try to create a constrained high speed configuration on a device"
+                " that doesn't support it.", mCameraIdStr.string());
             ALOGE("%s: %s", __FUNCTION__, msg.string());
             return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
                     msg.string());
         }
     }
 
-    status_t err = mDevice->configureStreams(isConstrainedHighSpeed);
+    status_t err = mDevice->configureStreams(operatingMode);
     if (err == BAD_VALUE) {
-        String8 msg = String8::format("Camera %d: Unsupported set of inputs/outputs provided",
-                mCameraId);
+        String8 msg = String8::format("Camera %s: Unsupported set of inputs/outputs provided",
+                mCameraIdStr.string());
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         res = STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     } else if (err != OK) {
-        String8 msg = String8::format("Camera %d: Error configuring streams: %s (%d)",
-                mCameraId, strerror(-err), err);
+        String8 msg = String8::format("Camera %s: Error configuring streams: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         res = STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
     }
@@ -366,7 +392,7 @@
     }
 
     bool isInput = false;
-    ssize_t index = NAME_NOT_FOUND;
+    std::vector<sp<IBinder>> surfaces;
     ssize_t dIndex = NAME_NOT_FOUND;
 
     if (mInputStream.configured && mInputStream.id == streamId) {
@@ -374,26 +400,24 @@
     } else {
         // Guard against trying to delete non-created streams
         for (size_t i = 0; i < mStreamMap.size(); ++i) {
-            if (streamId == mStreamMap.valueAt(i)) {
-                index = i;
+            if (streamId == mStreamMap.valueAt(i).streamId()) {
+                surfaces.push_back(mStreamMap.keyAt(i));
+            }
+        }
+
+        // See if this stream is one of the deferred streams.
+        for (size_t i = 0; i < mDeferredStreams.size(); ++i) {
+            if (streamId == mDeferredStreams[i]) {
+                dIndex = i;
                 break;
             }
         }
 
-        if (index == NAME_NOT_FOUND) {
-            // See if this stream is one of the deferred streams.
-            for (size_t i = 0; i < mDeferredStreams.size(); ++i) {
-                if (streamId == mDeferredStreams[i]) {
-                    dIndex = i;
-                    break;
-                }
-            }
-            if (dIndex == NAME_NOT_FOUND) {
-                String8 msg = String8::format("Camera %d: Invalid stream ID (%d) specified, no such"
-                        " stream created yet", mCameraId, streamId);
-                ALOGW("%s: %s", __FUNCTION__, msg.string());
-                return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
-            }
+        if (surfaces.empty() && dIndex == NAME_NOT_FOUND) {
+            String8 msg = String8::format("Camera %s: Invalid stream ID (%d) specified, no such"
+                    " stream created yet", mCameraIdStr.string(), streamId);
+            ALOGW("%s: %s", __FUNCTION__, msg.string());
+            return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
         }
     }
 
@@ -401,17 +425,21 @@
     status_t err = mDevice->deleteStream(streamId);
 
     if (err != OK) {
-        String8 msg = String8::format("Camera %d: Unexpected error %s (%d) when deleting stream %d",
-                mCameraId, strerror(-err), err, streamId);
+        String8 msg = String8::format("Camera %s: Unexpected error %s (%d) when deleting stream %d",
+                mCameraIdStr.string(), strerror(-err), err, streamId);
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         res = STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
     } else {
         if (isInput) {
             mInputStream.configured = false;
-        } else if (index != NAME_NOT_FOUND) {
-            mStreamMap.removeItemsAt(index);
         } else {
-            mDeferredStreams.removeItemsAt(dIndex);
+            for (auto& surface : surfaces) {
+                mStreamMap.removeItem(surface);
+            }
+
+            if (dIndex != NAME_NOT_FOUND) {
+                mDeferredStreams.removeItemsAt(dIndex);
+            }
         }
     }
 
@@ -429,14 +457,25 @@
 
     Mutex::Autolock icl(mBinderSerializationLock);
 
-    sp<IGraphicBufferProducer> bufferProducer = outputConfiguration.getGraphicBufferProducer();
-    bool deferredConsumer = bufferProducer == NULL;
+    const std::vector<sp<IGraphicBufferProducer>>& bufferProducers =
+            outputConfiguration.getGraphicBufferProducers();
+    size_t numBufferProducers = bufferProducers.size();
+    bool deferredConsumer = outputConfiguration.isDeferred();
+    bool isShared = outputConfiguration.isShared();
+
+    if (numBufferProducers > MAX_SURFACES_PER_STREAM) {
+        ALOGE("%s: GraphicBufferProducer count %zu for stream exceeds limit of %d",
+              __FUNCTION__, bufferProducers.size(), MAX_SURFACES_PER_STREAM);
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, "Surface count is too high");
+    }
+    bool deferredConsumerOnly = deferredConsumer && numBufferProducers == 0;
     int surfaceType = outputConfiguration.getSurfaceType();
     bool validSurfaceType = ((surfaceType == OutputConfiguration::SURFACE_TYPE_SURFACE_VIEW) ||
             (surfaceType == OutputConfiguration::SURFACE_TYPE_SURFACE_TEXTURE));
+
     if (deferredConsumer && !validSurfaceType) {
         ALOGE("%s: Target surface is invalid: bufferProducer = %p, surfaceType = %d.",
-                __FUNCTION__, bufferProducer.get(), surfaceType);
+                __FUNCTION__, bufferProducers[0].get(), surfaceType);
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, "Target Surface is invalid");
     }
 
@@ -444,115 +483,75 @@
         return STATUS_ERROR(CameraService::ERROR_DISCONNECTED, "Camera device no longer alive");
     }
 
-    int width, height, format;
-    int32_t consumerUsage;
-    android_dataspace dataSpace;
+    std::vector<sp<Surface>> surfaces;
+    std::vector<sp<IBinder>> binders;
     status_t err;
 
     // Create stream for deferred surface case.
-    if (deferredConsumer) {
-        return createDeferredSurfaceStreamLocked(outputConfiguration, newStreamId);
+    if (deferredConsumerOnly) {
+        return createDeferredSurfaceStreamLocked(outputConfiguration, isShared, newStreamId);
     }
 
-    // Don't create multiple streams for the same target surface
-    {
-        ssize_t index = mStreamMap.indexOfKey(IInterface::asBinder(bufferProducer));
+    OutputStreamInfo streamInfo;
+    bool isStreamInfoValid = false;
+    for (auto& bufferProducer : bufferProducers) {
+        // Don't create multiple streams for the same target surface
+        sp<IBinder> binder = IInterface::asBinder(bufferProducer);
+        ssize_t index = mStreamMap.indexOfKey(binder);
         if (index != NAME_NOT_FOUND) {
-            String8 msg = String8::format("Camera %d: Surface already has a stream created for it "
-                    "(ID %zd)", mCameraId, index);
+            String8 msg = String8::format("Camera %s: Surface already has a stream created for it "
+                    "(ID %zd)", mCameraIdStr.string(), index);
             ALOGW("%s: %s", __FUNCTION__, msg.string());
             return STATUS_ERROR(CameraService::ERROR_ALREADY_EXISTS, msg.string());
         }
-    }
 
-    // HACK b/10949105
-    // Query consumer usage bits to set async operation mode for
-    // GLConsumer using controlledByApp parameter.
-    bool useAsync = false;
-    if ((err = bufferProducer->query(NATIVE_WINDOW_CONSUMER_USAGE_BITS,
-            &consumerUsage)) != OK) {
-        String8 msg = String8::format("Camera %d: Failed to query Surface consumer usage: %s (%d)",
-                mCameraId, strerror(-err), err);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
-    }
-    if (consumerUsage & GraphicBuffer::USAGE_HW_TEXTURE) {
-        ALOGW("%s: Camera %d with consumer usage flag: 0x%x: Forcing asynchronous mode for stream",
-                __FUNCTION__, mCameraId, consumerUsage);
-        useAsync = true;
-    }
+        sp<Surface> surface;
+        res = createSurfaceFromGbp(streamInfo, isStreamInfoValid, surface, bufferProducer);
 
-    int32_t disallowedFlags = GraphicBuffer::USAGE_HW_VIDEO_ENCODER |
-                              GRALLOC_USAGE_RENDERSCRIPT;
-    int32_t allowedFlags = GraphicBuffer::USAGE_SW_READ_MASK |
-                           GraphicBuffer::USAGE_HW_TEXTURE |
-                           GraphicBuffer::USAGE_HW_COMPOSER;
-    bool flexibleConsumer = (consumerUsage & disallowedFlags) == 0 &&
-            (consumerUsage & allowedFlags) != 0;
+        if (!res.isOk())
+            return res;
 
-    sp<IBinder> binder = IInterface::asBinder(bufferProducer);
-    sp<Surface> surface = new Surface(bufferProducer, useAsync);
-    ANativeWindow *anw = surface.get();
+        if (!isStreamInfoValid) {
+            // Streaming sharing is only supported for IMPLEMENTATION_DEFINED
+            // formats.
+            if (isShared && streamInfo.format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) {
+                String8 msg = String8::format("Camera %s: Stream sharing is only supported for "
+                        "IMPLEMENTATION_DEFINED format", mCameraIdStr.string());
+                ALOGW("%s: %s", __FUNCTION__, msg.string());
+                return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+            }
+            isStreamInfoValid = true;
+        }
 
-    if ((err = anw->query(anw, NATIVE_WINDOW_WIDTH, &width)) != OK) {
-        String8 msg = String8::format("Camera %d: Failed to query Surface width: %s (%d)",
-                mCameraId, strerror(-err), err);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
-    }
-    if ((err = anw->query(anw, NATIVE_WINDOW_HEIGHT, &height)) != OK) {
-        String8 msg = String8::format("Camera %d: Failed to query Surface height: %s (%d)",
-                mCameraId, strerror(-err), err);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
-    }
-    if ((err = anw->query(anw, NATIVE_WINDOW_FORMAT, &format)) != OK) {
-        String8 msg = String8::format("Camera %d: Failed to query Surface format: %s (%d)",
-                mCameraId, strerror(-err), err);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
-    }
-    if ((err = anw->query(anw, NATIVE_WINDOW_DEFAULT_DATASPACE,
-                            reinterpret_cast<int*>(&dataSpace))) != OK) {
-        String8 msg = String8::format("Camera %d: Failed to query Surface dataspace: %s (%d)",
-                mCameraId, strerror(-err), err);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
-    }
-
-    // FIXME: remove this override since the default format should be
-    //       IMPLEMENTATION_DEFINED. b/9487482
-    if (format >= HAL_PIXEL_FORMAT_RGBA_8888 &&
-        format <= HAL_PIXEL_FORMAT_BGRA_8888) {
-        ALOGW("%s: Camera %d: Overriding format %#x to IMPLEMENTATION_DEFINED",
-              __FUNCTION__, mCameraId, format);
-        format = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
-    }
-
-    // Round dimensions to the nearest dimensions available for this format
-    if (flexibleConsumer && !CameraDeviceClient::roundBufferDimensionNearest(width, height,
-            format, dataSpace, mDevice->info(), /*out*/&width, /*out*/&height)) {
-        String8 msg = String8::format("Camera %d: No supported stream configurations with "
-                "format %#x defined, failed to create output stream", mCameraId, format);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+        binders.push_back(IInterface::asBinder(bufferProducer));
+        surfaces.push_back(surface);
     }
 
     int streamId = camera3::CAMERA3_STREAM_ID_INVALID;
-    err = mDevice->createStream(surface, width, height, format, dataSpace,
+    err = mDevice->createStream(surfaces, deferredConsumer, streamInfo.width,
+            streamInfo.height, streamInfo.format, streamInfo.dataSpace,
             static_cast<camera3_stream_rotation_t>(outputConfiguration.getRotation()),
-            &streamId, outputConfiguration.getSurfaceSetID());
+            &streamId, outputConfiguration.getSurfaceSetID(), isShared);
 
     if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error creating output stream (%d x %d, fmt %x, dataSpace %x): %s (%d)",
-                mCameraId, width, height, format, dataSpace, strerror(-err), err);
+                "Camera %s: Error creating output stream (%d x %d, fmt %x, dataSpace %x): %s (%d)",
+                mCameraIdStr.string(), streamInfo.width, streamInfo.height, streamInfo.format,
+                streamInfo.dataSpace, strerror(-err), err);
     } else {
-        mStreamMap.add(binder, streamId);
+        int i = 0;
+        for (auto& binder : binders) {
+            ALOGV("%s: mStreamMap add binder %p streamId %d, surfaceId %d",
+                    __FUNCTION__, binder.get(), streamId, i);
+            mStreamMap.add(binder, StreamSurfaceId(streamId, i++));
+        }
 
-        ALOGV("%s: Camera %d: Successfully created a new stream ID %d for output surface"
-                " (%d x %d) with format 0x%x.",
-              __FUNCTION__, mCameraId, streamId, width, height, format);
+        mStreamInfoMap[streamId] = streamInfo;
+
+        ALOGV("%s: Camera %s: Successfully created a new stream ID %d for output surface"
+                    " (%d x %d) with format 0x%x.",
+                  __FUNCTION__, mCameraIdStr.string(), streamId, streamInfo.width,
+                  streamInfo.height, streamInfo.format);
 
         // Set transform flags to ensure preview to be rotated correctly.
         res = setStreamTransformLocked(streamId);
@@ -565,6 +564,7 @@
 
 binder::Status CameraDeviceClient::createDeferredSurfaceStreamLocked(
         const hardware::camera2::params::OutputConfiguration &outputConfiguration,
+        bool isShared,
         /*out*/
         int* newStreamId) {
     int width, height, format, surfaceType;
@@ -589,23 +589,28 @@
         consumerUsage |= GraphicBuffer::USAGE_HW_COMPOSER;
     }
     int streamId = camera3::CAMERA3_STREAM_ID_INVALID;
-    err = mDevice->createStream(/*surface*/nullptr, width, height, format, dataSpace,
+    std::vector<sp<Surface>> noSurface;
+    err = mDevice->createStream(noSurface, /*hasDeferredConsumer*/true, width,
+            height, format, dataSpace,
             static_cast<camera3_stream_rotation_t>(outputConfiguration.getRotation()),
-            &streamId, outputConfiguration.getSurfaceSetID(), consumerUsage);
+            &streamId, outputConfiguration.getSurfaceSetID(), isShared, consumerUsage);
 
     if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error creating output stream (%d x %d, fmt %x, dataSpace %x): %s (%d)",
-                mCameraId, width, height, format, dataSpace, strerror(-err), err);
+                "Camera %s: Error creating output stream (%d x %d, fmt %x, dataSpace %x): %s (%d)",
+                mCameraIdStr.string(), width, height, format, dataSpace, strerror(-err), err);
     } else {
         // Can not add streamId to mStreamMap here, as the surface is deferred. Add it to
         // a separate list to track. Once the deferred surface is set, this id will be
         // relocated to mStreamMap.
         mDeferredStreams.push_back(streamId);
 
-        ALOGV("%s: Camera %d: Successfully created a new stream ID %d for a deferred surface"
+        mStreamInfoMap.emplace(std::piecewise_construct, std::forward_as_tuple(streamId),
+                std::forward_as_tuple(width, height, format, dataSpace, consumerUsage));
+
+        ALOGV("%s: Camera %s: Successfully created a new stream ID %d for a deferred surface"
                 " (%d x %d) stream with format 0x%x.",
-              __FUNCTION__, mCameraId, streamId, width, height, format);
+              __FUNCTION__, mCameraIdStr.string(), streamId, width, height, format);
 
         // Set transform flags to ensure preview to be rotated correctly.
         res = setStreamTransformLocked(streamId);
@@ -660,8 +665,8 @@
     }
 
     if (mInputStream.configured) {
-        String8 msg = String8::format("Camera %d: Already has an input stream "
-                "configured (ID %zd)", mCameraId, mInputStream.id);
+        String8 msg = String8::format("Camera %s: Already has an input stream "
+                "configured (ID %zd)", mCameraIdStr.string(), mInputStream.id);
         ALOGE("%s: %s", __FUNCTION__, msg.string() );
         return STATUS_ERROR(CameraService::ERROR_ALREADY_EXISTS, msg.string());
     }
@@ -675,13 +680,13 @@
         mInputStream.format = format;
         mInputStream.id = streamId;
 
-        ALOGV("%s: Camera %d: Successfully created a new input stream ID %d",
-                __FUNCTION__, mCameraId, streamId);
+        ALOGV("%s: Camera %s: Successfully created a new input stream ID %d",
+                __FUNCTION__, mCameraIdStr.string(), streamId);
 
         *newStreamId = streamId;
     } else {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error creating new input stream: %s (%d)", mCameraId,
+                "Camera %s: Error creating new input stream: %s (%d)", mCameraIdStr.string(),
                 strerror(-err), err);
     }
 
@@ -705,8 +710,8 @@
     status_t err = mDevice->getInputBufferProducer(&producer);
     if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error getting input Surface: %s (%d)",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Error getting input Surface: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
     } else {
         inputSurface->name = String16("CameraInput");
         inputSurface->graphicBufferProducer = producer;
@@ -714,6 +719,170 @@
     return res;
 }
 
+bool CameraDeviceClient::isPublicFormat(int32_t format)
+{
+    switch(format) {
+        case HAL_PIXEL_FORMAT_RGBA_8888:
+        case HAL_PIXEL_FORMAT_RGBX_8888:
+        case HAL_PIXEL_FORMAT_RGB_888:
+        case HAL_PIXEL_FORMAT_RGB_565:
+        case HAL_PIXEL_FORMAT_BGRA_8888:
+        case HAL_PIXEL_FORMAT_YV12:
+        case HAL_PIXEL_FORMAT_Y8:
+        case HAL_PIXEL_FORMAT_Y16:
+        case HAL_PIXEL_FORMAT_RAW16:
+        case HAL_PIXEL_FORMAT_RAW10:
+        case HAL_PIXEL_FORMAT_RAW12:
+        case HAL_PIXEL_FORMAT_RAW_OPAQUE:
+        case HAL_PIXEL_FORMAT_BLOB:
+        case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
+        case HAL_PIXEL_FORMAT_YCbCr_420_888:
+        case HAL_PIXEL_FORMAT_YCbCr_422_888:
+        case HAL_PIXEL_FORMAT_YCbCr_444_888:
+        case HAL_PIXEL_FORMAT_FLEX_RGB_888:
+        case HAL_PIXEL_FORMAT_FLEX_RGBA_8888:
+        case HAL_PIXEL_FORMAT_YCbCr_422_SP:
+        case HAL_PIXEL_FORMAT_YCrCb_420_SP:
+        case HAL_PIXEL_FORMAT_YCbCr_422_I:
+            return true;
+        default:
+            return false;
+    }
+}
+
+binder::Status CameraDeviceClient::createSurfaceFromGbp(
+        OutputStreamInfo& streamInfo, bool isStreamInfoValid,
+        sp<Surface>& surface, const sp<IGraphicBufferProducer>& gbp) {
+
+    // bufferProducer must be non-null
+    if (gbp == nullptr) {
+        String8 msg = String8::format("Camera %s: Surface is NULL", mCameraIdStr.string());
+        ALOGW("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+    // HACK b/10949105
+    // Query consumer usage bits to set async operation mode for
+    // GLConsumer using controlledByApp parameter.
+    bool useAsync = false;
+    int32_t consumerUsage;
+    status_t err;
+    if ((err = gbp->query(NATIVE_WINDOW_CONSUMER_USAGE_BITS,
+            &consumerUsage)) != OK) {
+        String8 msg = String8::format("Camera %s: Failed to query Surface consumer usage: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
+    }
+    if (consumerUsage & GraphicBuffer::USAGE_HW_TEXTURE) {
+        ALOGW("%s: Camera %s with consumer usage flag: 0x%x: Forcing asynchronous mode for stream",
+                __FUNCTION__, mCameraIdStr.string(), consumerUsage);
+        useAsync = true;
+    }
+
+    int32_t disallowedFlags = GraphicBuffer::USAGE_HW_VIDEO_ENCODER |
+                              GRALLOC_USAGE_RENDERSCRIPT;
+    int32_t allowedFlags = GraphicBuffer::USAGE_SW_READ_MASK |
+                           GraphicBuffer::USAGE_HW_TEXTURE |
+                           GraphicBuffer::USAGE_HW_COMPOSER;
+    bool flexibleConsumer = (consumerUsage & disallowedFlags) == 0 &&
+            (consumerUsage & allowedFlags) != 0;
+
+    surface = new Surface(gbp, useAsync);
+    ANativeWindow *anw = surface.get();
+
+    int width, height, format;
+    android_dataspace dataSpace;
+    if ((err = anw->query(anw, NATIVE_WINDOW_WIDTH, &width)) != OK) {
+        String8 msg = String8::format("Camera %s: Failed to query Surface width: %s (%d)",
+                 mCameraIdStr.string(), strerror(-err), err);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
+    }
+    if ((err = anw->query(anw, NATIVE_WINDOW_HEIGHT, &height)) != OK) {
+        String8 msg = String8::format("Camera %s: Failed to query Surface height: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
+    }
+    if ((err = anw->query(anw, NATIVE_WINDOW_FORMAT, &format)) != OK) {
+        String8 msg = String8::format("Camera %s: Failed to query Surface format: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
+    }
+    if ((err = anw->query(anw, NATIVE_WINDOW_DEFAULT_DATASPACE,
+            reinterpret_cast<int*>(&dataSpace))) != OK) {
+        String8 msg = String8::format("Camera %s: Failed to query Surface dataspace: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
+    }
+
+    // FIXME: remove this override since the default format should be
+    //       IMPLEMENTATION_DEFINED. b/9487482
+    if (format >= HAL_PIXEL_FORMAT_RGBA_8888 &&
+        format <= HAL_PIXEL_FORMAT_BGRA_8888) {
+        ALOGW("%s: Camera %s: Overriding format %#x to IMPLEMENTATION_DEFINED",
+                __FUNCTION__, mCameraIdStr.string(), format);
+        format = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
+    }
+    // Round dimensions to the nearest dimensions available for this format
+    if (flexibleConsumer && isPublicFormat(format) &&
+            !CameraDeviceClient::roundBufferDimensionNearest(width, height,
+            format, dataSpace, mDevice->info(), /*out*/&width, /*out*/&height)) {
+        String8 msg = String8::format("Camera %s: No supported stream configurations with "
+                "format %#x defined, failed to create output stream",
+                mCameraIdStr.string(), format);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+
+    if (!isStreamInfoValid) {
+        streamInfo.width = width;
+        streamInfo.height = height;
+        streamInfo.format = format;
+        streamInfo.dataSpace = dataSpace;
+        streamInfo.consumerUsage = consumerUsage;
+        return binder::Status::ok();
+    }
+    if (width != streamInfo.width) {
+        String8 msg = String8::format("Camera %s:Surface width doesn't match: %d vs %d",
+                mCameraIdStr.string(), width, streamInfo.width);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+    if (height != streamInfo.height) {
+        String8 msg = String8::format("Camera %s:Surface height doesn't match: %d vs %d",
+                 mCameraIdStr.string(), height, streamInfo.height);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+    if (format != streamInfo.format) {
+        String8 msg = String8::format("Camera %s:Surface format doesn't match: %d vs %d",
+                 mCameraIdStr.string(), format, streamInfo.format);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+    if (format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) {
+        if (dataSpace != streamInfo.dataSpace) {
+            String8 msg = String8::format("Camera %s:Surface dataSpace doesn't match: %d vs %d",
+                    mCameraIdStr.string(), dataSpace, streamInfo.dataSpace);
+            ALOGE("%s: %s", __FUNCTION__, msg.string());
+            return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+        }
+        //At the native side, there isn't a way to check whether 2 surfaces come from the same
+        //surface class type. Use usage flag to approximate the comparison.
+        if (consumerUsage != streamInfo.consumerUsage) {
+            String8 msg = String8::format(
+                    "Camera %s:Surface usage flag doesn't match 0x%x vs 0x%x",
+                    mCameraIdStr.string(), consumerUsage, streamInfo.consumerUsage);
+            ALOGE("%s: %s", __FUNCTION__, msg.string());
+            return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+        }
+    }
+    return binder::Status::ok();
+}
+
 bool CameraDeviceClient::roundBufferDimensionNearest(int32_t width, int32_t height,
         int32_t format, android_dataspace dataSpace, const CameraMetadata& info,
         /*out*/int32_t* outWidth, /*out*/int32_t* outHeight) {
@@ -796,13 +965,13 @@
         request->swap(metadata);
     } else if (err == BAD_VALUE) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                "Camera %d: Template ID %d is invalid or not supported: %s (%d)",
-                mCameraId, templateId, strerror(-err), err);
+                "Camera %s: Template ID %d is invalid or not supported: %s (%d)",
+                mCameraIdStr.string(), templateId, strerror(-err), err);
 
     } else {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error creating default request for template %d: %s (%d)",
-                mCameraId, templateId, strerror(-err), err);
+                "Camera %s: Error creating default request for template %d: %s (%d)",
+                mCameraIdStr.string(), templateId, strerror(-err), err);
     }
     return res;
 }
@@ -850,16 +1019,16 @@
     Mutex::Autolock idLock(mStreamingRequestIdLock);
     if (mStreamingRequestId != REQUEST_ID_NONE) {
         String8 msg = String8::format(
-            "Camera %d: Try to waitUntilIdle when there are active streaming requests",
-            mCameraId);
+            "Camera %s: Try to waitUntilIdle when there are active streaming requests",
+            mCameraIdStr.string());
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
     }
     status_t err = mDevice->waitUntilDrained();
     if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error waiting to drain: %s (%d)",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Error waiting to drain: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
     }
     ALOGV("%s Done", __FUNCTION__);
     return res;
@@ -885,7 +1054,7 @@
     status_t err = mDevice->flush(lastFrameNumber);
     if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error flushing device: %s (%d)", mCameraId, strerror(-err), err);
+                "Camera %s: Error flushing device: %s (%d)", mCameraIdStr.string(), strerror(-err), err);
     }
     return res;
 }
@@ -902,15 +1071,15 @@
     // Guard against trying to prepare non-created streams
     ssize_t index = NAME_NOT_FOUND;
     for (size_t i = 0; i < mStreamMap.size(); ++i) {
-        if (streamId == mStreamMap.valueAt(i)) {
+        if (streamId == mStreamMap.valueAt(i).streamId()) {
             index = i;
             break;
         }
     }
 
     if (index == NAME_NOT_FOUND) {
-        String8 msg = String8::format("Camera %d: Invalid stream ID (%d) specified, no stream "
-              "with that ID exists", mCameraId, streamId);
+        String8 msg = String8::format("Camera %s: Invalid stream ID (%d) specified, no stream "
+              "with that ID exists", mCameraIdStr.string(), streamId);
         ALOGW("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
@@ -920,11 +1089,11 @@
     status_t err = mDevice->prepare(streamId);
     if (err == BAD_VALUE) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                "Camera %d: Stream %d has already been used, and cannot be prepared",
-                mCameraId, streamId);
+                "Camera %s: Stream %d has already been used, and cannot be prepared",
+                mCameraIdStr.string(), streamId);
     } else if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error preparing stream %d: %s (%d)", mCameraId, streamId,
+                "Camera %s: Error preparing stream %d: %s (%d)", mCameraIdStr.string(), streamId,
                 strerror(-err), err);
     }
     return res;
@@ -942,22 +1111,22 @@
     // Guard against trying to prepare non-created streams
     ssize_t index = NAME_NOT_FOUND;
     for (size_t i = 0; i < mStreamMap.size(); ++i) {
-        if (streamId == mStreamMap.valueAt(i)) {
+        if (streamId == mStreamMap.valueAt(i).streamId()) {
             index = i;
             break;
         }
     }
 
     if (index == NAME_NOT_FOUND) {
-        String8 msg = String8::format("Camera %d: Invalid stream ID (%d) specified, no stream "
-              "with that ID exists", mCameraId, streamId);
+        String8 msg = String8::format("Camera %s: Invalid stream ID (%d) specified, no stream "
+              "with that ID exists", mCameraIdStr.string(), streamId);
         ALOGW("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
 
     if (maxCount <= 0) {
-        String8 msg = String8::format("Camera %d: maxCount (%d) must be greater than 0",
-                mCameraId, maxCount);
+        String8 msg = String8::format("Camera %s: maxCount (%d) must be greater than 0",
+                mCameraIdStr.string(), maxCount);
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
@@ -967,11 +1136,11 @@
     status_t err = mDevice->prepare(maxCount, streamId);
     if (err == BAD_VALUE) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                "Camera %d: Stream %d has already been used, and cannot be prepared",
-                mCameraId, streamId);
+                "Camera %s: Stream %d has already been used, and cannot be prepared",
+                mCameraIdStr.string(), streamId);
     } else if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error preparing stream %d: %s (%d)", mCameraId, streamId,
+                "Camera %s: Error preparing stream %d: %s (%d)", mCameraIdStr.string(), streamId,
                 strerror(-err), err);
     }
 
@@ -990,15 +1159,15 @@
     // Guard against trying to prepare non-created streams
     ssize_t index = NAME_NOT_FOUND;
     for (size_t i = 0; i < mStreamMap.size(); ++i) {
-        if (streamId == mStreamMap.valueAt(i)) {
+        if (streamId == mStreamMap.valueAt(i).streamId()) {
             index = i;
             break;
         }
     }
 
     if (index == NAME_NOT_FOUND) {
-        String8 msg = String8::format("Camera %d: Invalid stream ID (%d) specified, no stream "
-              "with that ID exists", mCameraId, streamId);
+        String8 msg = String8::format("Camera %s: Invalid stream ID (%d) specified, no stream "
+              "with that ID exists", mCameraIdStr.string(), streamId);
         ALOGW("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
@@ -1008,18 +1177,18 @@
     status_t err = mDevice->tearDown(streamId);
     if (err == BAD_VALUE) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                "Camera %d: Stream %d is still in use, cannot be torn down",
-                mCameraId, streamId);
+                "Camera %s: Stream %d is still in use, cannot be torn down",
+                mCameraIdStr.string(), streamId);
     } else if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error tearing down stream %d: %s (%d)", mCameraId, streamId,
+                "Camera %s: Error tearing down stream %d: %s (%d)", mCameraIdStr.string(), streamId,
                 strerror(-err), err);
     }
 
     return res;
 }
 
-binder::Status CameraDeviceClient::setDeferredConfiguration(int32_t streamId,
+binder::Status CameraDeviceClient::finalizeOutputConfigurations(int32_t streamId,
         const hardware::camera2::params::OutputConfiguration &outputConfiguration) {
     ATRACE_CALL();
 
@@ -1028,24 +1197,41 @@
 
     Mutex::Autolock icl(mBinderSerializationLock);
 
-    sp<IGraphicBufferProducer> bufferProducer = outputConfiguration.getGraphicBufferProducer();
+    const std::vector<sp<IGraphicBufferProducer> >& bufferProducers =
+            outputConfiguration.getGraphicBufferProducers();
 
-    // Client code should guarantee that the surface is from SurfaceView or SurfaceTexture.
-    if (bufferProducer == NULL) {
-        ALOGE("%s: bufferProducer must not be null", __FUNCTION__);
+    if (bufferProducers.size() == 0) {
+        ALOGE("%s: bufferProducers must not be empty", __FUNCTION__);
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, "Target Surface is invalid");
     }
-    // Check if this stram id is one of the deferred streams
-    ssize_t index = NAME_NOT_FOUND;
-    for (size_t i = 0; i < mDeferredStreams.size(); i++) {
-        if (streamId == mDeferredStreams[i]) {
-            index = i;
+
+    // streamId should be in mStreamMap if this stream already has a surface attached
+    // to it. Otherwise, it should be in mDeferredStreams.
+    bool streamIdConfigured = false;
+    ssize_t deferredStreamIndex = NAME_NOT_FOUND;
+    for (size_t i = 0; i < mStreamMap.size(); i++) {
+        if (mStreamMap.valueAt(i).streamId() == streamId) {
+            streamIdConfigured = true;
             break;
         }
     }
-    if (index == NAME_NOT_FOUND) {
-        String8 msg = String8::format("Camera %d: deferred surface is set to a unknown stream"
-                "(ID %d)", mCameraId, streamId);
+    for (size_t i = 0; i < mDeferredStreams.size(); i++) {
+        if (streamId == mDeferredStreams[i]) {
+            deferredStreamIndex = i;
+            break;
+        }
+
+    }
+    if (deferredStreamIndex == NAME_NOT_FOUND && !streamIdConfigured) {
+        String8 msg = String8::format("Camera %s: deferred surface is set to a unknown stream"
+                "(ID %d)", mCameraIdStr.string(), streamId);
+        ALOGW("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+
+    if (mStreamInfoMap[streamId].finalized) {
+        String8 msg = String8::format("Camera %s: finalizeOutputConfigurations has been called"
+                " on stream ID %d", mCameraIdStr.string(), streamId);
         ALOGW("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
@@ -1054,36 +1240,61 @@
         return STATUS_ERROR(CameraService::ERROR_DISCONNECTED, "Camera device no longer alive");
     }
 
-    // Don't create multiple streams for the same target surface
-    {
+    std::vector<sp<Surface>> consumerSurfaces;
+    std::vector<size_t> consumerSurfaceIds;
+    size_t surfaceId = 0;
+    for (auto& bufferProducer : bufferProducers) {
+        // Don't create multiple streams for the same target surface
         ssize_t index = mStreamMap.indexOfKey(IInterface::asBinder(bufferProducer));
         if (index != NAME_NOT_FOUND) {
-            String8 msg = String8::format("Camera %d: Surface already has a stream created "
-                    " for it (ID %zd)", mCameraId, index);
-            ALOGW("%s: %s", __FUNCTION__, msg.string());
-            return STATUS_ERROR(CameraService::ERROR_ALREADY_EXISTS, msg.string());
+            ALOGV("Camera %s: Surface already has a stream created "
+                    " for it (ID %zd)", mCameraIdStr.string(), index);
+            surfaceId++;
+            continue;
         }
+
+        sp<Surface> surface;
+        res = createSurfaceFromGbp(mStreamInfoMap[streamId], true /*isStreamInfoValid*/,
+                surface, bufferProducer);
+
+        if (!res.isOk())
+            return res;
+
+        consumerSurfaces.push_back(surface);
+        consumerSurfaceIds.push_back(surfaceId);
+        surfaceId++;
     }
 
-    status_t err;
-
-    // Always set to async, as we know the deferred surface is for preview streaming.
-    sp<Surface> consumerSurface = new Surface(bufferProducer, /*useAsync*/true);
+    // Gracefully handle case where finalizeOutputConfigurations is called
+    // without any new surface.
+    if (consumerSurfaces.size() == 0) {
+        mStreamInfoMap[streamId].finalized = true;
+        return res;
+    }
 
     // Finish the deferred stream configuration with the surface.
-    err = mDevice->setConsumerSurface(streamId, consumerSurface);
+    status_t err;
+    err = mDevice->setConsumerSurfaces(streamId, consumerSurfaces);
     if (err == OK) {
-        sp<IBinder> binder = IInterface::asBinder(bufferProducer);
-        mStreamMap.add(binder, streamId);
-        mDeferredStreams.removeItemsAt(index);
+        for (size_t i = 0; i < consumerSurfaces.size(); i++) {
+            sp<IBinder> binder = IInterface::asBinder(
+                    consumerSurfaces[i]->getIGraphicBufferProducer());
+            ALOGV("%s: mStreamMap add binder %p streamId %d, surfaceId %zu", __FUNCTION__,
+                    binder.get(), streamId, consumerSurfaceIds[i]);
+            mStreamMap.add(binder, StreamSurfaceId(streamId, consumerSurfaceIds[i]));
+        }
+        if (deferredStreamIndex != NAME_NOT_FOUND) {
+            mDeferredStreams.removeItemsAt(deferredStreamIndex);
+        }
+        mStreamInfoMap[streamId].finalized = true;
     } else if (err == NO_INIT) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                "Camera %d: Deferred surface is invalid: %s (%d)",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Deferred surface is invalid: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
     } else {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error setting output stream deferred surface: %s (%d)",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Error setting output stream deferred surface: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
     }
 
     return res;
@@ -1094,35 +1305,34 @@
 }
 
 status_t CameraDeviceClient::dumpClient(int fd, const Vector<String16>& args) {
-    String8 result;
-    result.appendFormat("CameraDeviceClient[%d] (%p) dump:\n",
-            mCameraId,
+    dprintf(fd, "  CameraDeviceClient[%s] (%p) dump:\n",
+            mCameraIdStr.string(),
             (getRemoteCallback() != NULL ?
                     IInterface::asBinder(getRemoteCallback()).get() : NULL) );
-    result.appendFormat("  Current client UID %u\n", mClientUid);
+    dprintf(fd, "    Current client UID %u\n", mClientUid);
 
-    result.append("  State:\n");
-    result.appendFormat("    Request ID counter: %d\n", mRequestIdCounter);
+    dprintf(fd, "    State:\n");
+    dprintf(fd, "      Request ID counter: %d\n", mRequestIdCounter);
     if (mInputStream.configured) {
-        result.appendFormat("    Current input stream ID: %d\n",
-                    mInputStream.id);
+        dprintf(fd, "      Current input stream ID: %d\n", mInputStream.id);
     } else {
-        result.append("    No input stream configured.\n");
+        dprintf(fd, "      No input stream configured.\n");
     }
     if (!mStreamMap.isEmpty()) {
-        result.append("    Current output stream IDs:\n");
+        dprintf(fd, "      Current output stream/surface IDs:\n");
         for (size_t i = 0; i < mStreamMap.size(); i++) {
-            result.appendFormat("      Stream %d\n", mStreamMap.valueAt(i));
+            dprintf(fd, "        Stream %d Surface %d\n",
+                                mStreamMap.valueAt(i).streamId(),
+                                mStreamMap.valueAt(i).surfaceId());
         }
     } else if (!mDeferredStreams.isEmpty()) {
-        result.append("    Current deferred surface output stream IDs:\n");
+        dprintf(fd, "      Current deferred surface output stream IDs:\n");
         for (auto& streamId : mDeferredStreams) {
-            result.appendFormat("      Stream %d\n", streamId);
+            dprintf(fd, "        Stream %d\n", streamId);
         }
     } else {
-        result.append("    No output streams configured.\n");
+        dprintf(fd, "      No output streams configured.\n");
     }
-    write(fd, result.string(), result.size());
     // TODO: print dynamic/request section from most recent requests
     mFrameProcessor->dump(fd, args);
 
@@ -1178,18 +1388,26 @@
     }
 }
 
+void CameraDeviceClient::notifyRequestQueueEmpty() {
+    // Thread safe. Don't bother locking.
+    sp<hardware::camera2::ICameraDeviceCallbacks> remoteCb = getRemoteCallback();
+    if (remoteCb != 0) {
+        remoteCb->onRequestQueueEmpty();
+    }
+}
+
 void CameraDeviceClient::detachDevice() {
     if (mDevice == 0) return;
 
-    ALOGV("Camera %d: Stopping processors", mCameraId);
+    ALOGV("Camera %s: Stopping processors", mCameraIdStr.string());
 
     mFrameProcessor->removeListener(FRAME_PROCESSOR_LISTENER_MIN_ID,
                                     FRAME_PROCESSOR_LISTENER_MAX_ID,
                                     /*listener*/this);
     mFrameProcessor->requestExit();
-    ALOGV("Camera %d: Waiting for threads", mCameraId);
+    ALOGV("Camera %s: Waiting for threads", mCameraIdStr.string());
     mFrameProcessor->join();
-    ALOGV("Camera %d: Disconnecting device", mCameraId);
+    ALOGV("Camera %s: Disconnecting device", mCameraIdStr.string());
 
     // WORKAROUND: HAL refuses to disconnect while there's streams in flight
     {
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.h b/services/camera/libcameraservice/api2/CameraDeviceClient.h
index dde23fb9..2bf73a0 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.h
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.h
@@ -42,7 +42,7 @@
     CameraDeviceClientBase(const sp<CameraService>& cameraService,
             const sp<hardware::camera2::ICameraDeviceCallbacks>& remoteCallback,
             const String16& clientPackageName,
-            int cameraId,
+            const String8& cameraId,
             int cameraFacing,
             int clientPid,
             uid_t clientUid,
@@ -70,70 +70,70 @@
             const hardware::camera2::CaptureRequest& request,
             bool streaming = false,
             /*out*/
-            hardware::camera2::utils::SubmitInfo *submitInfo = nullptr);
+            hardware::camera2::utils::SubmitInfo *submitInfo = nullptr) override;
     // List of requests are copied.
     virtual binder::Status submitRequestList(
             const std::vector<hardware::camera2::CaptureRequest>& requests,
             bool streaming = false,
             /*out*/
-            hardware::camera2::utils::SubmitInfo *submitInfo = nullptr);
+            hardware::camera2::utils::SubmitInfo *submitInfo = nullptr) override;
     virtual binder::Status cancelRequest(int requestId,
             /*out*/
-            int64_t* lastFrameNumber = NULL);
+            int64_t* lastFrameNumber = NULL) override;
 
-    virtual binder::Status beginConfigure();
+    virtual binder::Status beginConfigure() override;
 
-    virtual binder::Status endConfigure(bool isConstrainedHighSpeed = false);
+    virtual binder::Status endConfigure(int operatingMode) override;
 
     // Returns -EBUSY if device is not idle
-    virtual binder::Status deleteStream(int streamId);
+    virtual binder::Status deleteStream(int streamId) override;
 
     virtual binder::Status createStream(
             const hardware::camera2::params::OutputConfiguration &outputConfiguration,
             /*out*/
-            int32_t* newStreamId = NULL);
+            int32_t* newStreamId = NULL) override;
 
     // Create an input stream of width, height, and format.
     virtual binder::Status createInputStream(int width, int height, int format,
             /*out*/
-            int32_t* newStreamId = NULL);
+            int32_t* newStreamId = NULL) override;
 
     // Get the buffer producer of the input stream
     virtual binder::Status getInputSurface(
             /*out*/
-            view::Surface *inputSurface);
+            view::Surface *inputSurface) override;
 
     // Create a request object from a template.
     virtual binder::Status createDefaultRequest(int templateId,
             /*out*/
-            hardware::camera2::impl::CameraMetadataNative* request);
+            hardware::camera2::impl::CameraMetadataNative* request) override;
 
     // Get the static metadata for the camera
     // -- Caller owns the newly allocated metadata
     virtual binder::Status getCameraInfo(
             /*out*/
-            hardware::camera2::impl::CameraMetadataNative* cameraCharacteristics);
+            hardware::camera2::impl::CameraMetadataNative* cameraCharacteristics) override;
 
     // Wait until all the submitted requests have finished processing
-    virtual binder::Status waitUntilIdle();
+    virtual binder::Status waitUntilIdle() override;
 
     // Flush all active and pending requests as fast as possible
     virtual binder::Status flush(
             /*out*/
-            int64_t* lastFrameNumber = NULL);
+            int64_t* lastFrameNumber = NULL) override;
 
     // Prepare stream by preallocating its buffers
-    virtual binder::Status prepare(int32_t streamId);
+    virtual binder::Status prepare(int32_t streamId) override;
 
     // Tear down stream resources by freeing its unused buffers
-    virtual binder::Status tearDown(int32_t streamId);
+    virtual binder::Status tearDown(int32_t streamId) override;
 
     // Prepare stream by preallocating up to maxCount of its buffers
-    virtual binder::Status prepare2(int32_t maxCount, int32_t streamId);
+    virtual binder::Status prepare2(int32_t maxCount, int32_t streamId) override;
 
-    // Set the deferred surface for a stream.
-    virtual binder::Status setDeferredConfiguration(int32_t streamId,
-            const hardware::camera2::params::OutputConfiguration &outputConfiguration);
+    // Finalize the output configurations with surfaces not added before.
+    virtual binder::Status finalizeOutputConfigurations(int32_t streamId,
+            const hardware::camera2::params::OutputConfiguration &outputConfiguration) override;
 
     /**
      * Interface used by CameraService
@@ -142,14 +142,14 @@
     CameraDeviceClient(const sp<CameraService>& cameraService,
             const sp<hardware::camera2::ICameraDeviceCallbacks>& remoteCallback,
             const String16& clientPackageName,
-            int cameraId,
+            const String8& cameraId,
             int cameraFacing,
             int clientPid,
             uid_t clientUid,
             int servicePid);
     virtual ~CameraDeviceClient();
 
-    virtual status_t      initialize(CameraModule *module);
+    virtual status_t      initialize(sp<CameraProviderManager> manager) override;
 
     virtual status_t      dump(int fd, const Vector<String16>& args);
 
@@ -164,6 +164,7 @@
                              const CaptureResultExtras& resultExtras);
     virtual void notifyShutter(const CaptureResultExtras& resultExtras, nsecs_t timestamp);
     virtual void notifyPrepared(int streamId);
+    virtual void notifyRequestQueueEmpty();
     virtual void notifyRepeatingRequestError(long lastFrameNumber);
 
     /**
@@ -178,6 +179,52 @@
     status_t              getRotationTransformLocked(/*out*/int32_t* transform);
 
 private:
+    // StreamSurfaceId encapsulates streamId + surfaceId for a particular surface.
+    // streamId specifies the index of the stream the surface belongs to, and the
+    // surfaceId specifies the index of the surface within the stream. (one stream
+    // could contain multiple surfaces.)
+    class StreamSurfaceId final {
+    public:
+        StreamSurfaceId() {
+            mStreamId = -1;
+            mSurfaceId = -1;
+        }
+        StreamSurfaceId(int32_t streamId, int32_t surfaceId) {
+            mStreamId = streamId;
+            mSurfaceId = surfaceId;
+        }
+        int32_t streamId() const {
+            return mStreamId;
+        }
+        int32_t surfaceId() const {
+            return mSurfaceId;
+        }
+
+    private:
+        int32_t mStreamId;
+        int32_t mSurfaceId;
+
+    }; // class StreamSurfaceId
+
+    // OutputStreamInfo describes the property of a camera stream.
+    class OutputStreamInfo {
+    public:
+        int width;
+        int height;
+        int format;
+        android_dataspace dataSpace;
+        int32_t consumerUsage;
+        bool finalized = false;
+        OutputStreamInfo() :
+                width(-1), height(-1), format(-1), dataSpace(HAL_DATASPACE_UNKNOWN),
+                consumerUsage(0) {}
+        OutputStreamInfo(int _width, int _height, int _format, android_dataspace _dataSpace,
+                int32_t _consumerUsage) :
+                    width(_width), height(_height), format(_format),
+                    dataSpace(_dataSpace), consumerUsage(_consumerUsage) {}
+    };
+
+private:
     /** ICameraDeviceUser interface-related private members */
 
     /** Preview callback related members */
@@ -185,6 +232,9 @@
     static const int32_t FRAME_PROCESSOR_LISTENER_MIN_ID = 0;
     static const int32_t FRAME_PROCESSOR_LISTENER_MAX_ID = 0x7fffffffL;
 
+    template<typename TProviderPtr>
+    status_t      initializeImpl(TProviderPtr providerPtr);
+
     /** Utility members */
     binder::Status checkPidStatus(const char* checkLocation);
     bool enforceRequestPermissions(CameraMetadata& metadata);
@@ -195,6 +245,7 @@
     // Create an output stream with surface deferred for future.
     binder::Status createDeferredSurfaceStreamLocked(
             const hardware::camera2::params::OutputConfiguration &outputConfiguration,
+            bool isShared,
             int* newStreamId = NULL);
 
     // Set the stream transform flags to automatically rotate the camera stream for preview use
@@ -208,8 +259,16 @@
             android_dataspace dataSpace, const CameraMetadata& info,
             /*out*/int32_t* outWidth, /*out*/int32_t* outHeight);
 
-    // IGraphicsBufferProducer binder -> Stream ID for output streams
-    KeyedVector<sp<IBinder>, int> mStreamMap;
+    //check if format is not custom format
+    static bool isPublicFormat(int32_t format);
+
+    // Create a Surface from an IGraphicBufferProducer. Returns error if
+    // IGraphicBufferProducer's property doesn't match with streamInfo
+    binder::Status createSurfaceFromGbp(OutputStreamInfo& streamInfo, bool isStreamInfoValid,
+            sp<Surface>& surface, const sp<IGraphicBufferProducer>& gbp);
+
+    // IGraphicsBufferProducer binder -> Stream ID + Surface ID for output streams
+    KeyedVector<sp<IBinder>, StreamSurfaceId> mStreamMap;
 
     struct InputStreamConfiguration {
         bool configured;
@@ -230,6 +289,11 @@
     // as there are no surfaces available and can not be put into mStreamMap. Once the deferred
     // Surface is configured, the stream id will be moved to mStreamMap.
     Vector<int32_t> mDeferredStreams;
+
+    // stream ID -> outputStreamInfo mapping
+    std::unordered_map<int32_t, OutputStreamInfo> mStreamInfoMap;
+
+    static const int32_t MAX_SURFACES_PER_STREAM = 2;
 };
 
 }; // namespace android
diff --git a/services/camera/libcameraservice/common/Camera2ClientBase.cpp b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
index ccd1e4d..32ee273 100644
--- a/services/camera/libcameraservice/common/Camera2ClientBase.cpp
+++ b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
@@ -47,7 +47,7 @@
         const sp<CameraService>& cameraService,
         const sp<TCamCallbacks>& remoteCallback,
         const String16& clientPackageName,
-        int cameraId,
+        const String8& cameraId,
         int cameraFacing,
         int clientPid,
         uid_t clientUid,
@@ -55,10 +55,10 @@
         TClientBase(cameraService, remoteCallback, clientPackageName,
                 cameraId, cameraFacing, clientPid, clientUid, servicePid),
         mSharedCameraCallbacks(remoteCallback),
-        mDeviceVersion(cameraService->getDeviceVersion(cameraId)),
+        mDeviceVersion(cameraService->getDeviceVersion(TClientBase::mCameraIdStr)),
         mDeviceActive(false)
 {
-    ALOGI("Camera %d: Opened. Client: %s (PID %d, UID %d)", cameraId,
+    ALOGI("Camera %s: Opened. Client: %s (PID %d, UID %d)", cameraId.string(),
             String8(clientPackageName).string(), clientPid, clientUid);
 
     mInitialClientPid = clientPid;
@@ -79,10 +79,16 @@
 }
 
 template <typename TClientBase>
-status_t Camera2ClientBase<TClientBase>::initialize(CameraModule *module) {
+status_t Camera2ClientBase<TClientBase>::initialize(sp<CameraProviderManager> manager) {
+    return initializeImpl(manager);
+}
+
+template <typename TClientBase>
+template <typename TProviderPtr>
+status_t Camera2ClientBase<TClientBase>::initializeImpl(TProviderPtr providerPtr) {
     ATRACE_CALL();
-    ALOGV("%s: Initializing client for camera %d", __FUNCTION__,
-          TClientBase::mCameraId);
+    ALOGV("%s: Initializing client for camera %s", __FUNCTION__,
+          TClientBase::mCameraIdStr.string());
     status_t res;
 
     // Verify ops permissions
@@ -92,15 +98,15 @@
     }
 
     if (mDevice == NULL) {
-        ALOGE("%s: Camera %d: No device connected",
-                __FUNCTION__, TClientBase::mCameraId);
+        ALOGE("%s: Camera %s: No device connected",
+                __FUNCTION__, TClientBase::mCameraIdStr.string());
         return NO_INIT;
     }
 
-    res = mDevice->initialize(module);
+    res = mDevice->initialize(providerPtr);
     if (res != OK) {
-        ALOGE("%s: Camera %d: unable to initialize device: %s (%d)",
-                __FUNCTION__, TClientBase::mCameraId, strerror(-res), res);
+        ALOGE("%s: Camera %s: unable to initialize device: %s (%d)",
+                __FUNCTION__, TClientBase::mCameraIdStr.string(), strerror(-res), res);
         return res;
     }
 
@@ -118,8 +124,8 @@
 
     disconnect();
 
-    ALOGI("Closed Camera %d. Client was: %s (PID %d, UID %u)",
-            TClientBase::mCameraId,
+    ALOGI("Closed Camera %s. Client was: %s (PID %d, UID %u)",
+            TClientBase::mCameraIdStr.string(),
             String8(TClientBase::mClientPackageName).string(),
             mInitialClientPid, TClientBase::mClientUid);
 }
@@ -128,8 +134,8 @@
 status_t Camera2ClientBase<TClientBase>::dumpClient(int fd,
                                               const Vector<String16>& args) {
     String8 result;
-    result.appendFormat("Camera2ClientBase[%d] (%p) PID: %d, dump:\n",
-            TClientBase::mCameraId,
+    result.appendFormat("Camera2ClientBase[%s] (%p) PID: %d, dump:\n",
+            TClientBase::mCameraIdStr.string(),
             (TClientBase::getRemoteCallback() != NULL ?
                     IInterface::asBinder(TClientBase::getRemoteCallback()).get() : NULL),
             TClientBase::mClientPid);
@@ -180,13 +186,13 @@
     if (callingPid != TClientBase::mClientPid &&
         callingPid != TClientBase::mServicePid) return res;
 
-    ALOGV("Camera %d: Shutting down", TClientBase::mCameraId);
+    ALOGV("Camera %s: Shutting down", TClientBase::mCameraIdStr.string());
 
     detachDevice();
 
     CameraService::BasicClient::disconnect();
 
-    ALOGV("Camera %d: Shut down complete complete", TClientBase::mCameraId);
+    ALOGV("Camera %s: Shut down complete complete", TClientBase::mCameraIdStr.string());
 
     return res;
 }
@@ -198,7 +204,7 @@
 
     mDevice.clear();
 
-    ALOGV("Camera %d: Detach complete", TClientBase::mCameraId);
+    ALOGV("Camera %s: Detach complete", TClientBase::mCameraIdStr.string());
 }
 
 template <typename TClientBase>
@@ -211,10 +217,10 @@
     if (TClientBase::mClientPid != 0 &&
         getCallingPid() != TClientBase::mClientPid) {
 
-        ALOGE("%s: Camera %d: Connection attempt from pid %d; "
+        ALOGE("%s: Camera %s: Connection attempt from pid %d; "
                 "current locked to pid %d",
                 __FUNCTION__,
-                TClientBase::mCameraId,
+                TClientBase::mCameraIdStr.string(),
                 getCallingPid(),
                 TClientBase::mClientPid);
         return BAD_VALUE;
@@ -242,8 +248,7 @@
 void Camera2ClientBase<TClientBase>::notifyIdle() {
     if (mDeviceActive) {
         getCameraService()->updateProxyDeviceState(
-            ICameraServiceProxy::CAMERA_STATE_IDLE,
-            String8::format("%d", TClientBase::mCameraId));
+            ICameraServiceProxy::CAMERA_STATE_IDLE, TClientBase::mCameraIdStr);
     }
     mDeviceActive = false;
 
@@ -258,8 +263,7 @@
 
     if (!mDeviceActive) {
         getCameraService()->updateProxyDeviceState(
-            ICameraServiceProxy::CAMERA_STATE_ACTIVE,
-            String8::format("%d", TClientBase::mCameraId));
+            ICameraServiceProxy::CAMERA_STATE_ACTIVE, TClientBase::mCameraIdStr);
     }
     mDeviceActive = true;
 
@@ -307,6 +311,12 @@
 }
 
 template <typename TClientBase>
+void Camera2ClientBase<TClientBase>::notifyRequestQueueEmpty() {
+
+    ALOGV("%s: Request queue now empty", __FUNCTION__);
+}
+
+template <typename TClientBase>
 void Camera2ClientBase<TClientBase>::notifyRepeatingRequestError(long lastFrameNumber) {
     (void)lastFrameNumber;
 
@@ -316,7 +326,7 @@
 
 template <typename TClientBase>
 int Camera2ClientBase<TClientBase>::getCameraId() const {
-    return TClientBase::mCameraId;
+    return std::stoi(TClientBase::mCameraIdStr.string());
 }
 
 template <typename TClientBase>
@@ -331,7 +341,7 @@
 
 template <typename TClientBase>
 const sp<CameraService>& Camera2ClientBase<TClientBase>::getCameraService() {
-    return TClientBase::mCameraService;
+    return TClientBase::sCameraService;
 }
 
 template <typename TClientBase>
diff --git a/services/camera/libcameraservice/common/Camera2ClientBase.h b/services/camera/libcameraservice/common/Camera2ClientBase.h
index 4f60034..e898d5d 100644
--- a/services/camera/libcameraservice/common/Camera2ClientBase.h
+++ b/services/camera/libcameraservice/common/Camera2ClientBase.h
@@ -18,7 +18,6 @@
 #define ANDROID_SERVERS_CAMERA_CAMERA2CLIENT_BASE_H
 
 #include "common/CameraDeviceBase.h"
-#include "common/CameraModule.h"
 #include "camera/CaptureResult.h"
 
 namespace android {
@@ -49,14 +48,14 @@
     Camera2ClientBase(const sp<CameraService>& cameraService,
                       const sp<TCamCallbacks>& remoteCallback,
                       const String16& clientPackageName,
-                      int cameraId,
+                      const String8& cameraId,
                       int cameraFacing,
                       int clientPid,
                       uid_t clientUid,
                       int servicePid);
     virtual ~Camera2ClientBase();
 
-    virtual status_t      initialize(CameraModule *module);
+    virtual status_t      initialize(sp<CameraProviderManager> manager);
     virtual status_t      dumpClient(int fd, const Vector<String16>& args);
 
     /**
@@ -73,6 +72,7 @@
     virtual void          notifyAutoWhitebalance(uint8_t newState,
                                                  int triggerId);
     virtual void          notifyPrepared(int streamId);
+    virtual void          notifyRequestQueueEmpty();
     virtual void          notifyRepeatingRequestError(long lastFrameNumber);
 
     int                   getCameraId() const;
@@ -93,13 +93,13 @@
       public:
         class Lock {
           public:
-            Lock(SharedCameraCallbacks &client);
+            explicit Lock(SharedCameraCallbacks &client);
             ~Lock();
             sp<TCamCallbacks> &mRemoteCallback;
           private:
             SharedCameraCallbacks &mSharedClient;
         };
-        SharedCameraCallbacks(const sp<TCamCallbacks>& client);
+        explicit SharedCameraCallbacks(const sp<TCamCallbacks>& client);
         SharedCameraCallbacks& operator=(const sp<TCamCallbacks>& client);
         void clear();
       private:
@@ -139,6 +139,10 @@
     virtual void          detachDevice();
 
     bool                  mDeviceActive;
+
+private:
+    template<typename TProviderPtr>
+    status_t              initializeImpl(TProviderPtr providerPtr);
 };
 
 }; // namespace android
diff --git a/services/camera/libcameraservice/common/CameraDeviceBase.h b/services/camera/libcameraservice/common/CameraDeviceBase.h
index 984d84b..d9059f3 100644
--- a/services/camera/libcameraservice/common/CameraDeviceBase.h
+++ b/services/camera/libcameraservice/common/CameraDeviceBase.h
@@ -17,6 +17,8 @@
 #ifndef ANDROID_SERVERS_CAMERA_CAMERADEVICEBASE_H
 #define ANDROID_SERVERS_CAMERA_CAMERADEVICEBASE_H
 
+#include <list>
+
 #include <utils/RefBase.h>
 #include <utils/String8.h>
 #include <utils/String16.h>
@@ -28,13 +30,17 @@
 #include "hardware/camera3.h"
 #include "camera/CameraMetadata.h"
 #include "camera/CaptureResult.h"
-#include "common/CameraModule.h"
 #include "gui/IGraphicBufferProducer.h"
 #include "device3/Camera3StreamInterface.h"
 #include "binder/Status.h"
 
 namespace android {
 
+class CameraProviderManager;
+
+// Mapping of output stream index to surface ids
+typedef std::unordered_map<int, std::vector<size_t> > SurfaceMap;
+
 /**
  * Base interface for version >= 2 camera device classes, which interface to
  * camera HAL device versions >= 2.
@@ -46,9 +52,9 @@
     /**
      * The device's camera ID
      */
-    virtual int      getId() const = 0;
+    virtual const String8& getId() const = 0;
 
-    virtual status_t initialize(CameraModule *module) = 0;
+    virtual status_t initialize(sp<CameraProviderManager> manager) = 0;
     virtual status_t disconnect() = 0;
 
     virtual status_t dump(int fd, const Vector<String16> &args) = 0;
@@ -70,6 +76,7 @@
      * Output lastFrameNumber is the expected last frame number of the list of requests.
      */
     virtual status_t captureList(const List<const CameraMetadata> &requests,
+                                 const std::list<const SurfaceMap> &surfaceMaps,
                                  int64_t *lastFrameNumber = NULL) = 0;
 
     /**
@@ -85,6 +92,7 @@
      * Output lastFrameNumber is the last frame number of the previous streaming request.
      */
     virtual status_t setStreamingRequestList(const List<const CameraMetadata> &requests,
+                                             const std::list<const SurfaceMap> &surfaceMaps,
                                              int64_t *lastFrameNumber = NULL) = 0;
 
     /**
@@ -111,7 +119,20 @@
             uint32_t width, uint32_t height, int format,
             android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
             int streamSetId = camera3::CAMERA3_STREAM_SET_ID_INVALID,
-            uint32_t consumerUsage = 0) = 0;
+            bool isShared = false, uint32_t consumerUsage = 0) = 0;
+
+    /**
+     * Create an output stream of the requested size, format, rotation and
+     * dataspace with a number of consumers.
+     *
+     * For HAL_PIXEL_FORMAT_BLOB formats, the width and height should be the
+     * logical dimensions of the buffer, not the number of bytes.
+     */
+    virtual status_t createStream(const std::vector<sp<Surface>>& consumers,
+            bool hasDeferredConsumer, uint32_t width, uint32_t height, int format,
+            android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
+            int streamSetId = camera3::CAMERA3_STREAM_SET_ID_INVALID,
+            bool isShared = false, uint32_t consumerUsage = 0) = 0;
 
     /**
      * Create an input stream of width, height, and format.
@@ -122,12 +143,6 @@
             int32_t format, /*out*/ int32_t *id) = 0;
 
     /**
-     * Create an input reprocess stream that uses buffers from an existing
-     * output stream.
-     */
-    virtual status_t createReprocessStreamFromStream(int outputId, int *id) = 0;
-
-    /**
      * Get information about a given stream.
      */
     virtual status_t getStreamInfo(int id,
@@ -146,12 +161,6 @@
     virtual status_t deleteStream(int id) = 0;
 
     /**
-     * Delete reprocess stream. Must not be called if there are requests in
-     * flight which reference that stream.
-     */
-    virtual status_t deleteReprocessStream(int id) = 0;
-
-    /**
      * Take the currently-defined set of streams and configure the HAL to use
      * them. This is a long-running operation (may be several hundered ms).
      *
@@ -161,7 +170,7 @@
      * - BAD_VALUE if the set of streams was invalid (e.g. fmts or sizes)
      * - INVALID_OPERATION if the device was in the wrong state
      */
-    virtual status_t configureStreams(bool isConstrainedHighSpeed = false) = 0;
+    virtual status_t configureStreams(int operatingMode = 0) = 0;
 
     // get the buffer producer of the input stream
     virtual status_t getInputBufferProducer(
@@ -204,6 +213,7 @@
         virtual void notifyShutter(const CaptureResultExtras &resultExtras,
                 nsecs_t timestamp) = 0;
         virtual void notifyPrepared(int streamId) = 0;
+        virtual void notifyRequestQueueEmpty() = 0;
 
         // Required only for API1
         virtual void notifyAutoFocus(uint8_t newState, int triggerId) = 0;
@@ -265,21 +275,6 @@
     virtual status_t triggerPrecaptureMetering(uint32_t id) = 0;
 
     /**
-     * Abstract interface for clients that want to listen to reprocess buffer
-     * release events
-     */
-    struct BufferReleasedListener : public virtual RefBase {
-        virtual void onBufferReleased(buffer_handle_t *handle) = 0;
-    };
-
-    /**
-     * Push a buffer to be reprocessed into a reprocessing stream, and
-     * provide a listener to call once the buffer is returned by the HAL
-     */
-    virtual status_t pushReprocessBuffer(int reprocessStreamId,
-            buffer_handle_t *buffer, wp<BufferReleasedListener> listener) = 0;
-
-    /**
      * Flush all pending and in-flight requests. Blocks until flush is
      * complete.
      * Output lastFrameNumber is the last frame number of the previous streaming request.
@@ -310,14 +305,10 @@
     virtual status_t prepare(int maxCount, int streamId) = 0;
 
     /**
-     * Get the HAL device version.
-     */
-    virtual uint32_t getDeviceVersion() = 0;
-
-    /**
      * Set the deferred consumer surface and finish the rest of the stream configuration.
      */
-    virtual status_t setConsumerSurface(int streamId, sp<Surface> consumer) = 0;
+    virtual status_t setConsumerSurfaces(int streamId,
+            const std::vector<sp<Surface>>& consumers) = 0;
 
 };
 
diff --git a/services/camera/libcameraservice/common/CameraModule.cpp b/services/camera/libcameraservice/common/CameraModule.cpp
deleted file mode 100644
index 073144c..0000000
--- a/services/camera/libcameraservice/common/CameraModule.cpp
+++ /dev/null
@@ -1,403 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "CameraModule"
-#define ATRACE_TAG ATRACE_TAG_CAMERA
-//#define LOG_NDEBUG 0
-
-#include <utils/Trace.h>
-
-#include "CameraModule.h"
-
-namespace android {
-
-void CameraModule::deriveCameraCharacteristicsKeys(
-        uint32_t deviceVersion, CameraMetadata &chars) {
-    ATRACE_CALL();
-
-    Vector<int32_t> derivedCharKeys;
-    Vector<int32_t> derivedRequestKeys;
-    Vector<int32_t> derivedResultKeys;
-    // Keys added in HAL3.3
-    if (deviceVersion < CAMERA_DEVICE_API_VERSION_3_3) {
-        Vector<uint8_t> controlModes;
-        uint8_t data = ANDROID_CONTROL_AE_LOCK_AVAILABLE_TRUE;
-        chars.update(ANDROID_CONTROL_AE_LOCK_AVAILABLE, &data, /*count*/1);
-        data = ANDROID_CONTROL_AWB_LOCK_AVAILABLE_TRUE;
-        chars.update(ANDROID_CONTROL_AWB_LOCK_AVAILABLE, &data, /*count*/1);
-        controlModes.push(ANDROID_CONTROL_MODE_AUTO);
-        camera_metadata_entry entry = chars.find(ANDROID_CONTROL_AVAILABLE_SCENE_MODES);
-        if (entry.count > 1 || entry.data.u8[0] != ANDROID_CONTROL_SCENE_MODE_DISABLED) {
-            controlModes.push(ANDROID_CONTROL_MODE_USE_SCENE_MODE);
-        }
-
-        // Only advertise CONTROL_OFF mode if 3A manual controls are supported.
-        bool isManualAeSupported = false;
-        bool isManualAfSupported = false;
-        bool isManualAwbSupported = false;
-        entry = chars.find(ANDROID_CONTROL_AE_AVAILABLE_MODES);
-        if (entry.count > 0) {
-            for (size_t i = 0; i < entry.count; i++) {
-                if (entry.data.u8[i] == ANDROID_CONTROL_AE_MODE_OFF) {
-                    isManualAeSupported = true;
-                    break;
-                }
-            }
-        }
-        entry = chars.find(ANDROID_CONTROL_AF_AVAILABLE_MODES);
-        if (entry.count > 0) {
-            for (size_t i = 0; i < entry.count; i++) {
-                if (entry.data.u8[i] == ANDROID_CONTROL_AF_MODE_OFF) {
-                    isManualAfSupported = true;
-                    break;
-                }
-            }
-        }
-        entry = chars.find(ANDROID_CONTROL_AWB_AVAILABLE_MODES);
-        if (entry.count > 0) {
-            for (size_t i = 0; i < entry.count; i++) {
-                if (entry.data.u8[i] == ANDROID_CONTROL_AWB_MODE_OFF) {
-                    isManualAwbSupported = true;
-                    break;
-                }
-            }
-        }
-        if (isManualAeSupported && isManualAfSupported && isManualAwbSupported) {
-            controlModes.push(ANDROID_CONTROL_MODE_OFF);
-        }
-
-        chars.update(ANDROID_CONTROL_AVAILABLE_MODES, controlModes);
-
-        entry = chars.find(ANDROID_REQUEST_AVAILABLE_REQUEST_KEYS);
-        // HAL3.2 devices passing existing CTS test should all support all LSC modes and LSC map
-        bool lensShadingModeSupported = false;
-        if (entry.count > 0) {
-            for (size_t i = 0; i < entry.count; i++) {
-                if (entry.data.i32[i] == ANDROID_SHADING_MODE) {
-                    lensShadingModeSupported = true;
-                    break;
-                }
-            }
-        }
-        Vector<uint8_t> lscModes;
-        Vector<uint8_t> lscMapModes;
-        lscModes.push(ANDROID_SHADING_MODE_FAST);
-        lscModes.push(ANDROID_SHADING_MODE_HIGH_QUALITY);
-        lscMapModes.push(ANDROID_STATISTICS_LENS_SHADING_MAP_MODE_OFF);
-        if (lensShadingModeSupported) {
-            lscModes.push(ANDROID_SHADING_MODE_OFF);
-            lscMapModes.push(ANDROID_STATISTICS_LENS_SHADING_MAP_MODE_ON);
-        }
-        chars.update(ANDROID_SHADING_AVAILABLE_MODES, lscModes);
-        chars.update(ANDROID_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES, lscMapModes);
-
-        derivedCharKeys.push(ANDROID_CONTROL_AE_LOCK_AVAILABLE);
-        derivedCharKeys.push(ANDROID_CONTROL_AWB_LOCK_AVAILABLE);
-        derivedCharKeys.push(ANDROID_CONTROL_AVAILABLE_MODES);
-        derivedCharKeys.push(ANDROID_SHADING_AVAILABLE_MODES);
-        derivedCharKeys.push(ANDROID_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES);
-
-        // Need update android.control.availableHighSpeedVideoConfigurations since HAL3.3
-        // adds batch size to this array.
-        entry = chars.find(ANDROID_CONTROL_AVAILABLE_HIGH_SPEED_VIDEO_CONFIGURATIONS);
-        if (entry.count > 0) {
-            Vector<int32_t> highSpeedConfig;
-            for (size_t i = 0; i < entry.count; i += 4) {
-                highSpeedConfig.add(entry.data.i32[i]); // width
-                highSpeedConfig.add(entry.data.i32[i + 1]); // height
-                highSpeedConfig.add(entry.data.i32[i + 2]); // fps_min
-                highSpeedConfig.add(entry.data.i32[i + 3]); // fps_max
-                highSpeedConfig.add(1); // batchSize_max. default to 1 for HAL3.2
-            }
-            chars.update(ANDROID_CONTROL_AVAILABLE_HIGH_SPEED_VIDEO_CONFIGURATIONS,
-                    highSpeedConfig);
-        }
-    }
-
-    // Keys added in HAL3.4
-    if (deviceVersion < CAMERA_DEVICE_API_VERSION_3_4) {
-        // Check if HAL supports RAW_OPAQUE output
-        camera_metadata_entry entry = chars.find(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS);
-        bool supportRawOpaque = false;
-        bool supportAnyRaw = false;
-        const int STREAM_CONFIGURATION_SIZE = 4;
-        const int STREAM_FORMAT_OFFSET = 0;
-        const int STREAM_WIDTH_OFFSET = 1;
-        const int STREAM_HEIGHT_OFFSET = 2;
-        const int STREAM_IS_INPUT_OFFSET = 3;
-        Vector<int32_t> rawOpaqueSizes;
-
-        for (size_t i=0; i < entry.count; i += STREAM_CONFIGURATION_SIZE) {
-            int32_t format = entry.data.i32[i + STREAM_FORMAT_OFFSET];
-            int32_t width = entry.data.i32[i + STREAM_WIDTH_OFFSET];
-            int32_t height = entry.data.i32[i + STREAM_HEIGHT_OFFSET];
-            int32_t isInput = entry.data.i32[i + STREAM_IS_INPUT_OFFSET];
-            if (isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT &&
-                    format == HAL_PIXEL_FORMAT_RAW_OPAQUE) {
-                supportRawOpaque = true;
-                rawOpaqueSizes.push(width);
-                rawOpaqueSizes.push(height);
-                // 2 bytes per pixel. This rough estimation is only used when
-                // HAL does not fill in the opaque raw size
-                rawOpaqueSizes.push(width * height *2);
-            }
-            if (isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT &&
-                    (format == HAL_PIXEL_FORMAT_RAW16 ||
-                     format == HAL_PIXEL_FORMAT_RAW10 ||
-                     format == HAL_PIXEL_FORMAT_RAW12 ||
-                     format == HAL_PIXEL_FORMAT_RAW_OPAQUE)) {
-                supportAnyRaw = true;
-            }
-        }
-
-        if (supportRawOpaque) {
-            entry = chars.find(ANDROID_SENSOR_OPAQUE_RAW_SIZE);
-            if (entry.count == 0) {
-                // Fill in estimated value if HAL does not list it
-                chars.update(ANDROID_SENSOR_OPAQUE_RAW_SIZE, rawOpaqueSizes);
-                derivedCharKeys.push(ANDROID_SENSOR_OPAQUE_RAW_SIZE);
-            }
-        }
-
-        // Check if HAL supports any RAW output, if so, fill in postRawSensitivityBoost range
-        if (supportAnyRaw) {
-            int32_t defaultRange[2] = {100, 100};
-            entry = chars.find(ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE);
-            if (entry.count == 0) {
-                // Fill in default value (100, 100)
-                chars.update(
-                        ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE,
-                        defaultRange, 2);
-                derivedCharKeys.push(ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE);
-                // Actual request/results will be derived by camera device.
-                derivedRequestKeys.push(ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST);
-                derivedResultKeys.push(ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST);
-            }
-        }
-    }
-
-    // Always add a default for the pre-correction active array if the vendor chooses to omit this
-    camera_metadata_entry entry = chars.find(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE);
-    if (entry.count == 0) {
-        Vector<int32_t> preCorrectionArray;
-        entry = chars.find(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE);
-        preCorrectionArray.appendArray(entry.data.i32, entry.count);
-        chars.update(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE, preCorrectionArray);
-        derivedCharKeys.push(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE);
-    }
-
-    // Add those newly added keys to AVAILABLE_CHARACTERISTICS_KEYS
-    // This has to be done at this end of this function.
-    if (derivedCharKeys.size() > 0) {
-        appendAvailableKeys(
-                chars, ANDROID_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS, derivedCharKeys);
-    }
-    if (derivedRequestKeys.size() > 0) {
-        appendAvailableKeys(
-                chars, ANDROID_REQUEST_AVAILABLE_REQUEST_KEYS, derivedRequestKeys);
-    }
-    if (derivedResultKeys.size() > 0) {
-        appendAvailableKeys(
-                chars, ANDROID_REQUEST_AVAILABLE_RESULT_KEYS, derivedResultKeys);
-    }
-    return;
-}
-
-void CameraModule::appendAvailableKeys(CameraMetadata &chars,
-        int32_t keyTag, const Vector<int32_t>& appendKeys) {
-    camera_metadata_entry entry = chars.find(keyTag);
-    Vector<int32_t> availableKeys;
-    availableKeys.setCapacity(entry.count + appendKeys.size());
-    for (size_t i = 0; i < entry.count; i++) {
-        availableKeys.push(entry.data.i32[i]);
-    }
-    for (size_t i = 0; i < appendKeys.size(); i++) {
-        availableKeys.push(appendKeys[i]);
-    }
-    chars.update(keyTag, availableKeys);
-}
-
-CameraModule::CameraModule(camera_module_t *module) {
-    if (module == NULL) {
-        ALOGE("%s: camera hardware module must not be null", __FUNCTION__);
-        assert(0);
-    }
-    mModule = module;
-}
-
-CameraModule::~CameraModule()
-{
-    while (mCameraInfoMap.size() > 0) {
-        camera_info cameraInfo = mCameraInfoMap.editValueAt(0);
-        if (cameraInfo.static_camera_characteristics != NULL) {
-            free_camera_metadata(
-                    const_cast<camera_metadata_t*>(cameraInfo.static_camera_characteristics));
-        }
-        mCameraInfoMap.removeItemsAt(0);
-    }
-}
-
-int CameraModule::init() {
-    ATRACE_CALL();
-    int res = OK;
-    if (getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_4 &&
-            mModule->init != NULL) {
-        ATRACE_BEGIN("camera_module->init");
-        res = mModule->init();
-        ATRACE_END();
-    }
-    mCameraInfoMap.setCapacity(getNumberOfCameras());
-    return res;
-}
-
-int CameraModule::getCameraInfo(int cameraId, struct camera_info *info) {
-    ATRACE_CALL();
-    Mutex::Autolock lock(mCameraInfoLock);
-    if (cameraId < 0) {
-        ALOGE("%s: Invalid camera ID %d", __FUNCTION__, cameraId);
-        return -EINVAL;
-    }
-
-    // Only override static_camera_characteristics for API2 devices
-    int apiVersion = mModule->common.module_api_version;
-    if (apiVersion < CAMERA_MODULE_API_VERSION_2_0) {
-        int ret;
-        ATRACE_BEGIN("camera_module->get_camera_info");
-        ret = mModule->get_camera_info(cameraId, info);
-        // Fill in this so CameraService won't be confused by
-        // possibly 0 device_version
-        info->device_version = CAMERA_DEVICE_API_VERSION_1_0;
-        ATRACE_END();
-        return ret;
-    }
-
-    ssize_t index = mCameraInfoMap.indexOfKey(cameraId);
-    if (index == NAME_NOT_FOUND) {
-        // Get camera info from raw module and cache it
-        camera_info rawInfo, cameraInfo;
-        ATRACE_BEGIN("camera_module->get_camera_info");
-        int ret = mModule->get_camera_info(cameraId, &rawInfo);
-        ATRACE_END();
-        if (ret != 0) {
-            return ret;
-        }
-        int deviceVersion = rawInfo.device_version;
-        if (deviceVersion < CAMERA_DEVICE_API_VERSION_3_0) {
-            // static_camera_characteristics is invalid
-            *info = rawInfo;
-            return ret;
-        }
-        CameraMetadata m;
-        m = rawInfo.static_camera_characteristics;
-        deriveCameraCharacteristicsKeys(rawInfo.device_version, m);
-        cameraInfo = rawInfo;
-        cameraInfo.static_camera_characteristics = m.release();
-        index = mCameraInfoMap.add(cameraId, cameraInfo);
-    }
-
-    assert(index != NAME_NOT_FOUND);
-    // return the cached camera info
-    *info = mCameraInfoMap[index];
-    return OK;
-}
-
-int CameraModule::open(const char* id, struct hw_device_t** device) {
-    int res;
-    ATRACE_BEGIN("camera_module->open");
-    res = filterOpenErrorCode(mModule->common.methods->open(&mModule->common, id, device));
-    ATRACE_END();
-    return res;
-}
-
-int CameraModule::openLegacy(
-        const char* id, uint32_t halVersion, struct hw_device_t** device) {
-    int res;
-    ATRACE_BEGIN("camera_module->open_legacy");
-    res = mModule->open_legacy(&mModule->common, id, halVersion, device);
-    ATRACE_END();
-    return res;
-}
-
-int CameraModule::getNumberOfCameras() {
-    int numCameras;
-    ATRACE_BEGIN("camera_module->get_number_of_cameras");
-    numCameras = mModule->get_number_of_cameras();
-    ATRACE_END();
-    return numCameras;
-}
-
-int CameraModule::setCallbacks(const camera_module_callbacks_t *callbacks) {
-    int res;
-    ATRACE_BEGIN("camera_module->set_callbacks");
-    res = mModule->set_callbacks(callbacks);
-    ATRACE_END();
-    return res;
-}
-
-bool CameraModule::isVendorTagDefined() {
-    return mModule->get_vendor_tag_ops != NULL;
-}
-
-void CameraModule::getVendorTagOps(vendor_tag_ops_t* ops) {
-    if (mModule->get_vendor_tag_ops) {
-        ATRACE_BEGIN("camera_module->get_vendor_tag_ops");
-        mModule->get_vendor_tag_ops(ops);
-        ATRACE_END();
-    }
-}
-
-int CameraModule::setTorchMode(const char* camera_id, bool enable) {
-    int res;
-    ATRACE_BEGIN("camera_module->set_torch_mode");
-    res = mModule->set_torch_mode(camera_id, enable);
-    ATRACE_END();
-    return res;
-}
-
-status_t CameraModule::filterOpenErrorCode(status_t err) {
-    switch(err) {
-        case NO_ERROR:
-        case -EBUSY:
-        case -EINVAL:
-        case -EUSERS:
-            return err;
-        default:
-            break;
-    }
-    return -ENODEV;
-}
-
-uint16_t CameraModule::getModuleApiVersion() {
-    return mModule->common.module_api_version;
-}
-
-const char* CameraModule::getModuleName() {
-    return mModule->common.name;
-}
-
-uint16_t CameraModule::getHalApiVersion() {
-    return mModule->common.hal_api_version;
-}
-
-const char* CameraModule::getModuleAuthor() {
-    return mModule->common.author;
-}
-
-void* CameraModule::getDso() {
-    return mModule->common.dso;
-}
-
-}; // namespace android
diff --git a/services/camera/libcameraservice/common/CameraModule.h b/services/camera/libcameraservice/common/CameraModule.h
deleted file mode 100644
index 1a1c274..0000000
--- a/services/camera/libcameraservice/common/CameraModule.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_SERVERS_CAMERA_CAMERAMODULE_H
-#define ANDROID_SERVERS_CAMERA_CAMERAMODULE_H
-
-#include <hardware/camera.h>
-#include <camera/CameraMetadata.h>
-#include <utils/Mutex.h>
-#include <utils/KeyedVector.h>
-
-namespace android {
-/**
- * A wrapper class for HAL camera module.
- *
- * This class wraps camera_module_t returned from HAL to provide a wrapped
- * get_camera_info implementation which CameraService generates some
- * camera characteristics keys defined in newer HAL version on an older HAL.
- */
-class CameraModule {
-public:
-    CameraModule(camera_module_t *module);
-    virtual ~CameraModule();
-
-    // Must be called after construction
-    // Returns OK on success, NO_INIT on failure
-    int init();
-
-    int getCameraInfo(int cameraId, struct camera_info *info);
-    int getNumberOfCameras(void);
-    int open(const char* id, struct hw_device_t** device);
-    int openLegacy(const char* id, uint32_t halVersion, struct hw_device_t** device);
-    int setCallbacks(const camera_module_callbacks_t *callbacks);
-    bool isVendorTagDefined();
-    void getVendorTagOps(vendor_tag_ops_t* ops);
-    int setTorchMode(const char* camera_id, bool enable);
-    uint16_t getModuleApiVersion();
-    const char* getModuleName();
-    uint16_t getHalApiVersion();
-    const char* getModuleAuthor();
-    // Only used by CameraModuleFixture native test. Do NOT use elsewhere.
-    void *getDso();
-
-private:
-    // Derive camera characteristics keys defined after HAL device version
-    static void deriveCameraCharacteristicsKeys(uint32_t deviceVersion, CameraMetadata &chars);
-    // Helper function to append available[request|result|chars]Keys
-    static void appendAvailableKeys(CameraMetadata &chars,
-            int32_t keyTag, const Vector<int32_t>& appendKeys);
-    status_t filterOpenErrorCode(status_t err);
-    camera_module_t *mModule;
-    KeyedVector<int, camera_info> mCameraInfoMap;
-    Mutex mCameraInfoLock;
-};
-
-} // namespace android
-
-#endif
diff --git a/services/camera/libcameraservice/common/CameraProviderManager.cpp b/services/camera/libcameraservice/common/CameraProviderManager.cpp
new file mode 100644
index 0000000..5addaf1
--- /dev/null
+++ b/services/camera/libcameraservice/common/CameraProviderManager.cpp
@@ -0,0 +1,1347 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "CameraProviderManager"
+#define ATRACE_TAG ATRACE_TAG_CAMERA
+//#define LOG_NDEBUG 0
+
+#include "CameraProviderManager.h"
+
+#include <chrono>
+#include <inttypes.h>
+#include <hidl/ServiceManagement.h>
+#include <functional>
+#include <camera_metadata_hidden.h>
+
+namespace android {
+
+using namespace ::android::hardware::camera;
+using namespace ::android::hardware::camera::common::V1_0;
+
+namespace {
+// Hardcoded name for the passthrough HAL implementation, since it can't be discovered via the
+// service manager
+const std::string kLegacyProviderName("legacy/0");
+
+// Slash-separated list of provider types to consider for use via the old camera API
+const std::string kStandardProviderTypes("internal/legacy");
+
+} // anonymous namespace
+
+CameraProviderManager::HardwareServiceInteractionProxy
+CameraProviderManager::sHardwareServiceInteractionProxy{};
+
+CameraProviderManager::~CameraProviderManager() {
+}
+
+status_t CameraProviderManager::initialize(wp<CameraProviderManager::StatusListener> listener,
+        ServiceInteractionProxy* proxy) {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    if (proxy == nullptr) {
+        ALOGE("%s: No valid service interaction proxy provided", __FUNCTION__);
+        return BAD_VALUE;
+    }
+    mListener = listener;
+    mServiceProxy = proxy;
+
+    // Registering will trigger notifications for all already-known providers
+    bool success = mServiceProxy->registerForNotifications(
+        /* instance name, empty means no filter */ "",
+        this);
+    if (!success) {
+        ALOGE("%s: Unable to register with hardware service manager for notifications "
+                "about camera providers", __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+
+    // See if there's a passthrough HAL, but let's not complain if there's not
+    addProviderLocked(kLegacyProviderName, /*expected*/ false);
+
+    return OK;
+}
+
+int CameraProviderManager::getCameraCount() const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    int count = 0;
+    for (auto& provider : mProviders) {
+        count += provider->mUniqueDeviceCount;
+    }
+    return count;
+}
+
+int CameraProviderManager::getAPI1CompatibleCameraCount() const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    int count = 0;
+    for (auto& provider : mProviders) {
+        if (kStandardProviderTypes.find(provider->getType()) != std::string::npos) {
+            count += provider->mUniqueAPI1CompatibleCameraIds.size();
+        }
+    }
+    return count;
+}
+
+std::vector<std::string> CameraProviderManager::getCameraDeviceIds() const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    std::vector<std::string> deviceIds;
+    for (auto& provider : mProviders) {
+        for (auto& id : provider->mUniqueCameraIds) {
+            deviceIds.push_back(id);
+        }
+    }
+    return deviceIds;
+}
+
+std::vector<std::string> CameraProviderManager::getAPI1CompatibleCameraDeviceIds() const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    std::vector<std::string> deviceIds;
+    for (auto& provider : mProviders) {
+        if (kStandardProviderTypes.find(provider->getType()) != std::string::npos) {
+            for (auto& id : provider->mUniqueAPI1CompatibleCameraIds) {
+                deviceIds.push_back(id);
+            }
+        }
+    }
+    return deviceIds;
+}
+
+bool CameraProviderManager::isValidDevice(const std::string &id, uint16_t majorVersion) const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    return isValidDeviceLocked(id, majorVersion);
+}
+
+bool CameraProviderManager::isValidDeviceLocked(const std::string &id, uint16_t majorVersion) const {
+    for (auto& provider : mProviders) {
+        for (auto& deviceInfo : provider->mDevices) {
+            if (deviceInfo->mId == id && deviceInfo->mVersion.get_major() == majorVersion) {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+bool CameraProviderManager::hasFlashUnit(const std::string &id) const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id);
+    if (deviceInfo == nullptr) return false;
+
+    return deviceInfo->hasFlashUnit();
+}
+
+status_t CameraProviderManager::getResourceCost(const std::string &id,
+        CameraResourceCost* cost) const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id);
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    *cost = deviceInfo->mResourceCost;
+    return OK;
+}
+
+status_t CameraProviderManager::getCameraInfo(const std::string &id,
+        hardware::CameraInfo* info) const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id);
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    return deviceInfo->getCameraInfo(info);
+}
+
+status_t CameraProviderManager::getCameraCharacteristics(const std::string &id,
+        CameraMetadata* characteristics) const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id, /*minVersion*/ {3,0}, /*maxVersion*/ {4,0});
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    return deviceInfo->getCameraCharacteristics(characteristics);
+}
+
+status_t CameraProviderManager::getHighestSupportedVersion(const std::string &id,
+        hardware::hidl_version *v) {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    hardware::hidl_version maxVersion{0,0};
+    bool found = false;
+    for (auto& provider : mProviders) {
+        for (auto& deviceInfo : provider->mDevices) {
+            if (deviceInfo->mId == id) {
+                if (deviceInfo->mVersion > maxVersion) {
+                    maxVersion = deviceInfo->mVersion;
+                    found = true;
+                }
+            }
+        }
+    }
+    if (!found) {
+        return NAME_NOT_FOUND;
+    }
+    *v = maxVersion;
+    return OK;
+}
+
+bool CameraProviderManager::supportSetTorchMode(const std::string &id) {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    bool support = false;
+    for (auto& provider : mProviders) {
+        auto deviceInfo = findDeviceInfoLocked(id);
+        if (deviceInfo != nullptr) {
+            provider->mInterface->isSetTorchModeSupported(
+                [&support](auto status, bool supported) {
+                    if (status == Status::OK) {
+                        support = supported;
+                    }
+                });
+        }
+    }
+    return support;
+}
+
+status_t CameraProviderManager::setTorchMode(const std::string &id, bool enabled) {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id);
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    return deviceInfo->setTorchMode(enabled);
+}
+
+status_t CameraProviderManager::setUpVendorTags() {
+    sp<VendorTagDescriptorCache> tagCache = new VendorTagDescriptorCache();
+
+    for (auto& provider : mProviders) {
+        hardware::hidl_vec<VendorTagSection> vts;
+        Status status;
+        hardware::Return<void> ret;
+        ret = provider->mInterface->getVendorTags(
+            [&](auto s, const auto& vendorTagSecs) {
+                status = s;
+                if (s == Status::OK) {
+                    vts = vendorTagSecs;
+                }
+        });
+        if (!ret.isOk()) {
+            ALOGE("%s: Transaction error getting vendor tags from provider '%s': %s",
+                    __FUNCTION__, provider->mProviderName.c_str(), ret.description().c_str());
+            return DEAD_OBJECT;
+        }
+        if (status != Status::OK) {
+            return mapToStatusT(status);
+        }
+
+        // Read all vendor tag definitions into a descriptor
+        sp<VendorTagDescriptor> desc;
+        status_t res;
+        if ((res = HidlVendorTagDescriptor::createDescriptorFromHidl(vts, /*out*/desc))
+                != OK) {
+            ALOGE("%s: Could not generate descriptor from vendor tag operations,"
+                  "received error %s (%d). Camera clients will not be able to use"
+                  "vendor tags", __FUNCTION__, strerror(res), res);
+            return res;
+        }
+
+        tagCache->addVendorDescriptor(provider->mProviderTagid, desc);
+    }
+
+    VendorTagDescriptorCache::setAsGlobalVendorTagCache(tagCache);
+
+    return OK;
+}
+
+status_t CameraProviderManager::openSession(const std::string &id,
+        const sp<hardware::camera::device::V3_2::ICameraDeviceCallback>& callback,
+        /*out*/
+        sp<hardware::camera::device::V3_2::ICameraDeviceSession> *session) {
+
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id,
+            /*minVersion*/ {3,0}, /*maxVersion*/ {4,0});
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    auto *deviceInfo3 = static_cast<ProviderInfo::DeviceInfo3*>(deviceInfo);
+
+    Status status;
+    hardware::Return<void> ret;
+    ret = deviceInfo3->mInterface->open(callback, [&status, &session]
+            (Status s, const sp<device::V3_2::ICameraDeviceSession>& cameraSession) {
+                status = s;
+                if (status == Status::OK) {
+                    *session = cameraSession;
+                }
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error opening a session for camera device %s: %s",
+                __FUNCTION__, id.c_str(), ret.description().c_str());
+        return DEAD_OBJECT;
+    }
+    return mapToStatusT(status);
+}
+
+status_t CameraProviderManager::openSession(const std::string &id,
+        const sp<hardware::camera::device::V1_0::ICameraDeviceCallback>& callback,
+        /*out*/
+        sp<hardware::camera::device::V1_0::ICameraDevice> *session) {
+
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id,
+            /*minVersion*/ {1,0}, /*maxVersion*/ {2,0});
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    auto *deviceInfo1 = static_cast<ProviderInfo::DeviceInfo1*>(deviceInfo);
+
+    hardware::Return<Status> status = deviceInfo1->mInterface->open(callback);
+    if (!status.isOk()) {
+        ALOGE("%s: Transaction error opening a session for camera device %s: %s",
+                __FUNCTION__, id.c_str(), status.description().c_str());
+        return DEAD_OBJECT;
+    }
+    if (status == Status::OK) {
+        *session = deviceInfo1->mInterface;
+    }
+    return mapToStatusT(status);
+}
+
+
+hardware::Return<void> CameraProviderManager::onRegistration(
+        const hardware::hidl_string& /*fqName*/,
+        const hardware::hidl_string& name,
+        bool /*preexisting*/) {
+    {
+        std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+        addProviderLocked(name);
+    }
+
+    sp<StatusListener> listener = getStatusListener();
+    if (nullptr != listener.get()) {
+        listener->onNewProviderRegistered();
+    }
+
+    return hardware::Return<void>();
+}
+
+status_t CameraProviderManager::dump(int fd, const Vector<String16>& args) {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    for (auto& provider : mProviders) {
+        provider->dump(fd, args);
+    }
+    return OK;
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo* CameraProviderManager::findDeviceInfoLocked(
+        const std::string& id,
+        hardware::hidl_version minVersion, hardware::hidl_version maxVersion) const {
+    for (auto& provider : mProviders) {
+        for (auto& deviceInfo : provider->mDevices) {
+            if (deviceInfo->mId == id &&
+                    minVersion <= deviceInfo->mVersion && maxVersion >= deviceInfo->mVersion) {
+                return deviceInfo.get();
+            }
+        }
+    }
+    return nullptr;
+}
+
+metadata_vendor_id_t CameraProviderManager::getProviderTagIdLocked(
+        const std::string& id, hardware::hidl_version minVersion,
+        hardware::hidl_version maxVersion) const {
+    metadata_vendor_id_t ret = CAMERA_METADATA_INVALID_VENDOR_ID;
+
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    for (auto& provider : mProviders) {
+        for (auto& deviceInfo : provider->mDevices) {
+            if (deviceInfo->mId == id &&
+                    minVersion <= deviceInfo->mVersion &&
+                    maxVersion >= deviceInfo->mVersion) {
+                return provider->mProviderTagid;
+            }
+        }
+    }
+
+    return ret;
+}
+
+status_t CameraProviderManager::addProviderLocked(const std::string& newProvider, bool expected) {
+    for (const auto& providerInfo : mProviders) {
+        if (providerInfo->mProviderName == newProvider) {
+            ALOGW("%s: Camera provider HAL with name '%s' already registered", __FUNCTION__,
+                    newProvider.c_str());
+            return ALREADY_EXISTS;
+        }
+    }
+
+    sp<provider::V2_4::ICameraProvider> interface;
+    interface = mServiceProxy->getService(newProvider);
+
+    if (interface == nullptr) {
+        if (expected) {
+            ALOGE("%s: Camera provider HAL '%s' is not actually available", __FUNCTION__,
+                    newProvider.c_str());
+            return BAD_VALUE;
+        } else {
+            return OK;
+        }
+    }
+
+    sp<ProviderInfo> providerInfo =
+            new ProviderInfo(newProvider, interface, this);
+    status_t res = providerInfo->initialize();
+    if (res != OK) {
+        return res;
+    }
+
+    mProviders.push_back(providerInfo);
+
+    return OK;
+}
+
+status_t CameraProviderManager::removeProvider(const std::string& provider) {
+    std::unique_lock<std::mutex> lock(mInterfaceMutex);
+    std::vector<String8> removedDeviceIds;
+    status_t res = NAME_NOT_FOUND;
+    for (auto it = mProviders.begin(); it != mProviders.end(); it++) {
+        if ((*it)->mProviderName == provider) {
+            removedDeviceIds.reserve((*it)->mDevices.size());
+            for (auto& deviceInfo : (*it)->mDevices) {
+                removedDeviceIds.push_back(String8(deviceInfo->mId.c_str()));
+            }
+            mProviders.erase(it);
+            res = OK;
+            break;
+        }
+    }
+    if (res != OK) {
+        ALOGW("%s: Camera provider HAL with name '%s' is not registered", __FUNCTION__,
+                provider.c_str());
+    } else {
+        // Inform camera service of loss of presence for all the devices from this provider,
+        // without lock held for reentrancy
+        sp<StatusListener> listener = getStatusListener();
+        if (listener != nullptr) {
+            lock.unlock();
+            for (auto& id : removedDeviceIds) {
+                listener->onDeviceStatusChanged(id, CameraDeviceStatus::NOT_PRESENT);
+            }
+        }
+    }
+    return res;
+}
+
+sp<CameraProviderManager::StatusListener> CameraProviderManager::getStatusListener() const {
+    return mListener.promote();
+}
+
+/**** Methods for ProviderInfo ****/
+
+
+CameraProviderManager::ProviderInfo::ProviderInfo(
+        const std::string &providerName,
+        sp<provider::V2_4::ICameraProvider>& interface,
+        CameraProviderManager *manager) :
+        mProviderName(providerName),
+        mInterface(interface),
+        mProviderTagid(generateVendorTagId(providerName)),
+        mUniqueDeviceCount(0),
+        mManager(manager) {
+    (void) mManager;
+}
+
+status_t CameraProviderManager::ProviderInfo::initialize() {
+    status_t res = parseProviderName(mProviderName, &mType, &mId);
+    if (res != OK) {
+        ALOGE("%s: Invalid provider name, ignoring", __FUNCTION__);
+        return BAD_VALUE;
+    }
+    ALOGI("Connecting to new camera provider: %s, isRemote? %d",
+            mProviderName.c_str(), mInterface->isRemote());
+    hardware::Return<Status> status = mInterface->setCallback(this);
+    if (!status.isOk()) {
+        ALOGE("%s: Transaction error setting up callbacks with camera provider '%s': %s",
+                __FUNCTION__, mProviderName.c_str(), status.description().c_str());
+        return DEAD_OBJECT;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to register callbacks with camera provider '%s'",
+                __FUNCTION__, mProviderName.c_str());
+        return mapToStatusT(status);
+    }
+
+    hardware::Return<bool> linked = mInterface->linkToDeath(this, /*cookie*/ mId);
+    if (!linked.isOk()) {
+        ALOGE("%s: Transaction error in linking to camera provider '%s' death: %s",
+                __FUNCTION__, mProviderName.c_str(), linked.description().c_str());
+        return DEAD_OBJECT;
+    } else if (!linked) {
+        ALOGW("%s: Unable to link to provider '%s' death notifications",
+                __FUNCTION__, mProviderName.c_str());
+    }
+
+    // Get initial list of camera devices, if any
+    std::vector<std::string> devices;
+    hardware::Return<void> ret = mInterface->getCameraIdList([&status, &devices](
+            Status idStatus,
+            const hardware::hidl_vec<hardware::hidl_string>& cameraDeviceNames) {
+        status = idStatus;
+        if (status == Status::OK) {
+            for (size_t i = 0; i < cameraDeviceNames.size(); i++) {
+                devices.push_back(cameraDeviceNames[i]);
+            }
+        } });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error in getting camera ID list from provider '%s': %s",
+                __FUNCTION__, mProviderName.c_str(), linked.description().c_str());
+        return DEAD_OBJECT;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to query for camera devices from provider '%s'",
+                __FUNCTION__, mProviderName.c_str());
+        return mapToStatusT(status);
+    }
+
+    sp<StatusListener> listener = mManager->getStatusListener();
+    for (auto& device : devices) {
+        std::string id;
+        status_t res = addDevice(device,
+                hardware::camera::common::V1_0::CameraDeviceStatus::PRESENT, &id);
+        if (res != OK) {
+            ALOGE("%s: Unable to enumerate camera device '%s': %s (%d)",
+                    __FUNCTION__, device.c_str(), strerror(-res), res);
+            continue;
+        }
+    }
+
+    for (auto& device : mDevices) {
+        mUniqueCameraIds.insert(device->mId);
+        if (device->isAPI1Compatible()) {
+            mUniqueAPI1CompatibleCameraIds.insert(device->mId);
+        }
+    }
+    mUniqueDeviceCount = mUniqueCameraIds.size();
+
+    ALOGI("Camera provider %s ready with %zu camera devices",
+            mProviderName.c_str(), mDevices.size());
+
+    return OK;
+}
+
+const std::string& CameraProviderManager::ProviderInfo::getType() const {
+    return mType;
+}
+
+status_t CameraProviderManager::ProviderInfo::addDevice(const std::string& name,
+        CameraDeviceStatus initialStatus, /*out*/ std::string* parsedId) {
+
+    ALOGI("Enumerating new camera device: %s", name.c_str());
+
+    uint16_t major, minor;
+    std::string type, id;
+
+    status_t res = parseDeviceName(name, &major, &minor, &type, &id);
+    if (res != OK) {
+        return res;
+    }
+    if (type != mType) {
+        ALOGE("%s: Device type %s does not match provider type %s", __FUNCTION__,
+                type.c_str(), mType.c_str());
+        return BAD_VALUE;
+    }
+    if (mManager->isValidDeviceLocked(id, major)) {
+        ALOGE("%s: Device %s: ID %s is already in use for device major version %d", __FUNCTION__,
+                name.c_str(), id.c_str(), major);
+        return BAD_VALUE;
+    }
+
+    std::unique_ptr<DeviceInfo> deviceInfo;
+    switch (major) {
+        case 1:
+            deviceInfo = initializeDeviceInfo<DeviceInfo1>(name, mProviderTagid,
+                    id, minor);
+            break;
+        case 3:
+            deviceInfo = initializeDeviceInfo<DeviceInfo3>(name, mProviderTagid,
+                    id, minor);
+            break;
+        default:
+            ALOGE("%s: Device %s: Unknown HIDL device HAL major version %d:", __FUNCTION__,
+                    name.c_str(), major);
+            return BAD_VALUE;
+    }
+    if (deviceInfo == nullptr) return BAD_VALUE;
+    deviceInfo->mStatus = initialStatus;
+
+    mDevices.push_back(std::move(deviceInfo));
+
+    if (parsedId != nullptr) {
+        *parsedId = id;
+    }
+    return OK;
+}
+
+status_t CameraProviderManager::ProviderInfo::dump(int fd, const Vector<String16>&) const {
+    dprintf(fd, "== Camera Provider HAL %s (v2.4, %s) static info: %zu devices: ==\n",
+            mProviderName.c_str(), mInterface->isRemote() ? "remote" : "passthrough",
+            mDevices.size());
+
+    for (auto& device : mDevices) {
+        dprintf(fd, "== Camera HAL device %s (v%d.%d) static information: ==\n", device->mName.c_str(),
+                device->mVersion.get_major(), device->mVersion.get_minor());
+        dprintf(fd, "  Resource cost: %d\n", device->mResourceCost.resourceCost);
+        if (device->mResourceCost.conflictingDevices.size() == 0) {
+            dprintf(fd, "  Conflicting devices: None\n");
+        } else {
+            dprintf(fd, "  Conflicting devices:\n");
+            for (size_t i = 0; i < device->mResourceCost.conflictingDevices.size(); i++) {
+                dprintf(fd, "    %s\n",
+                        device->mResourceCost.conflictingDevices[i].c_str());
+            }
+        }
+        dprintf(fd, "  API1 info:\n");
+        dprintf(fd, "    Has a flash unit: %s\n",
+                device->hasFlashUnit() ? "true" : "false");
+        hardware::CameraInfo info;
+        status_t res = device->getCameraInfo(&info);
+        if (res != OK) {
+            dprintf(fd, "   <Error reading camera info: %s (%d)>\n",
+                    strerror(-res), res);
+        } else {
+            dprintf(fd, "    Facing: %s\n",
+                    info.facing == hardware::CAMERA_FACING_BACK ? "Back" : "Front");
+            dprintf(fd, "    Orientation: %d\n", info.orientation);
+        }
+        CameraMetadata info2;
+        res = device->getCameraCharacteristics(&info2);
+        if (res == INVALID_OPERATION) {
+            dprintf(fd, "  API2 not directly supported\n");
+        } else if (res != OK) {
+            dprintf(fd, "  <Error reading camera characteristics: %s (%d)>\n",
+                    strerror(-res), res);
+        } else {
+            dprintf(fd, "  API2 camera characteristics:\n");
+            info2.dump(fd, /*verbosity*/ 2, /*indentation*/ 4);
+        }
+    }
+    return OK;
+}
+
+hardware::Return<void> CameraProviderManager::ProviderInfo::cameraDeviceStatusChange(
+        const hardware::hidl_string& cameraDeviceName,
+        CameraDeviceStatus newStatus) {
+    sp<StatusListener> listener;
+    std::string id;
+    {
+        std::lock_guard<std::mutex> lock(mLock);
+        bool known = false;
+        for (auto& deviceInfo : mDevices) {
+            if (deviceInfo->mName == cameraDeviceName) {
+                ALOGI("Camera device %s status is now %s, was %s", cameraDeviceName.c_str(),
+                        deviceStatusToString(newStatus), deviceStatusToString(deviceInfo->mStatus));
+                deviceInfo->mStatus = newStatus;
+                // TODO: Handle device removal (NOT_PRESENT)
+                id = deviceInfo->mId;
+                known = true;
+                break;
+            }
+        }
+        // Previously unseen device; status must not be NOT_PRESENT
+        if (!known) {
+            if (newStatus == CameraDeviceStatus::NOT_PRESENT) {
+                ALOGW("Camera provider %s says an unknown camera device %s is not present. Curious.",
+                    mProviderName.c_str(), cameraDeviceName.c_str());
+                return hardware::Void();
+            }
+            addDevice(cameraDeviceName, newStatus, &id);
+        }
+        listener = mManager->getStatusListener();
+    }
+    // Call without lock held to allow reentrancy into provider manager
+    if (listener != nullptr) {
+        listener->onDeviceStatusChanged(String8(id.c_str()), newStatus);
+    }
+    return hardware::Void();
+}
+
+hardware::Return<void> CameraProviderManager::ProviderInfo::torchModeStatusChange(
+        const hardware::hidl_string& cameraDeviceName,
+        TorchModeStatus newStatus) {
+    sp<StatusListener> listener;
+    std::string id;
+    {
+        std::lock_guard<std::mutex> lock(mManager->mStatusListenerMutex);
+        bool known = false;
+        for (auto& deviceInfo : mDevices) {
+            if (deviceInfo->mName == cameraDeviceName) {
+                ALOGI("Camera device %s torch status is now %s", cameraDeviceName.c_str(),
+                        torchStatusToString(newStatus));
+                id = deviceInfo->mId;
+                known = true;
+                break;
+            }
+        }
+        if (!known) {
+            ALOGW("Camera provider %s says an unknown camera %s now has torch status %d. Curious.",
+                    mProviderName.c_str(), cameraDeviceName.c_str(), newStatus);
+            return hardware::Void();
+        }
+        listener = mManager->getStatusListener();
+    }
+    // Call without lock held to allow reentrancy into provider manager
+    if (listener != nullptr) {
+        listener->onTorchStatusChanged(String8(id.c_str()), newStatus);
+    }
+    return hardware::Void();
+}
+
+void CameraProviderManager::ProviderInfo::serviceDied(uint64_t cookie,
+        const wp<hidl::base::V1_0::IBase>& who) {
+    (void) who;
+    ALOGI("Camera provider '%s' has died; removing it", mProviderName.c_str());
+    if (cookie != mId) {
+        ALOGW("%s: Unexpected serviceDied cookie %" PRIu64 ", expected %" PRIu32,
+                __FUNCTION__, cookie, mId);
+    }
+    mManager->removeProvider(mProviderName);
+}
+
+template<class DeviceInfoT>
+std::unique_ptr<CameraProviderManager::ProviderInfo::DeviceInfo>
+    CameraProviderManager::ProviderInfo::initializeDeviceInfo(
+        const std::string &name, const metadata_vendor_id_t tagId,
+        const std::string &id, uint16_t minorVersion) const {
+    Status status;
+
+    auto cameraInterface =
+            getDeviceInterface<typename DeviceInfoT::InterfaceT>(name);
+    if (cameraInterface == nullptr) return nullptr;
+
+    CameraResourceCost resourceCost;
+    cameraInterface->getResourceCost([&status, &resourceCost](
+        Status s, CameraResourceCost cost) {
+                status = s;
+                resourceCost = cost;
+            });
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to obtain resource costs for camera device %s: %s", __FUNCTION__,
+                name.c_str(), statusToString(status));
+        return nullptr;
+    }
+    return std::unique_ptr<DeviceInfo>(
+        new DeviceInfoT(name, tagId, id, minorVersion, resourceCost,
+                cameraInterface));
+}
+
+template<class InterfaceT>
+sp<InterfaceT>
+CameraProviderManager::ProviderInfo::getDeviceInterface(const std::string &name) const {
+    ALOGE("%s: Device %s: Unknown HIDL device HAL major version %d:", __FUNCTION__,
+            name.c_str(), InterfaceT::version.get_major());
+    return nullptr;
+}
+
+template<>
+sp<device::V1_0::ICameraDevice>
+CameraProviderManager::ProviderInfo::getDeviceInterface
+        <device::V1_0::ICameraDevice>(const std::string &name) const {
+    Status status;
+    sp<device::V1_0::ICameraDevice> cameraInterface;
+    hardware::Return<void> ret;
+    ret = mInterface->getCameraDeviceInterface_V1_x(name, [&status, &cameraInterface](
+        Status s, sp<device::V1_0::ICameraDevice> interface) {
+                status = s;
+                cameraInterface = interface;
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error trying to obtain interface for camera device %s: %s",
+                __FUNCTION__, name.c_str(), ret.description().c_str());
+        return nullptr;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to obtain interface for camera device %s: %s", __FUNCTION__,
+                name.c_str(), statusToString(status));
+        return nullptr;
+    }
+    return cameraInterface;
+}
+
+template<>
+sp<device::V3_2::ICameraDevice>
+CameraProviderManager::ProviderInfo::getDeviceInterface
+        <device::V3_2::ICameraDevice>(const std::string &name) const {
+    Status status;
+    sp<device::V3_2::ICameraDevice> cameraInterface;
+    hardware::Return<void> ret;
+    ret = mInterface->getCameraDeviceInterface_V3_x(name, [&status, &cameraInterface](
+        Status s, sp<device::V3_2::ICameraDevice> interface) {
+                status = s;
+                cameraInterface = interface;
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error trying to obtain interface for camera device %s: %s",
+                __FUNCTION__, name.c_str(), ret.description().c_str());
+        return nullptr;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to obtain interface for camera device %s: %s", __FUNCTION__,
+                name.c_str(), statusToString(status));
+        return nullptr;
+    }
+    return cameraInterface;
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo::~DeviceInfo() {}
+
+template<class InterfaceT>
+status_t CameraProviderManager::ProviderInfo::DeviceInfo::setTorchMode(InterfaceT& interface,
+        bool enabled) {
+    Status s = interface->setTorchMode(enabled ? TorchMode::ON : TorchMode::OFF);
+    return mapToStatusT(s);
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo1::DeviceInfo1(const std::string& name,
+        const metadata_vendor_id_t tagId, const std::string &id,
+        uint16_t minorVersion,
+        const CameraResourceCost& resourceCost,
+        sp<InterfaceT> interface) :
+        DeviceInfo(name, tagId, id, hardware::hidl_version{1, minorVersion},
+                   resourceCost),
+        mInterface(interface) {
+    // Get default parameters and initialize flash unit availability
+    // Requires powering on the camera device
+    hardware::Return<Status> status = mInterface->open(nullptr);
+    if (!status.isOk()) {
+        ALOGE("%s: Transaction error opening camera device %s to check for a flash unit: %s",
+                __FUNCTION__, mId.c_str(), status.description().c_str());
+        return;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to open camera device %s to check for a flash unit: %s", __FUNCTION__,
+                mId.c_str(), CameraProviderManager::statusToString(status));
+        return;
+    }
+    hardware::Return<void> ret;
+    ret = mInterface->getParameters([this](const hardware::hidl_string& parms) {
+                mDefaultParameters.unflatten(String8(parms.c_str()));
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error reading camera device %s params to check for a flash unit: %s",
+                __FUNCTION__, mId.c_str(), status.description().c_str());
+        return;
+    }
+    const char *flashMode =
+            mDefaultParameters.get(CameraParameters::KEY_SUPPORTED_FLASH_MODES);
+    if (flashMode && strstr(flashMode, CameraParameters::FLASH_MODE_TORCH)) {
+        mHasFlashUnit = true;
+    }
+
+    ret = mInterface->close();
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error closing camera device %s after check for a flash unit: %s",
+                __FUNCTION__, mId.c_str(), status.description().c_str());
+    }
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo1::~DeviceInfo1() {}
+
+status_t CameraProviderManager::ProviderInfo::DeviceInfo1::setTorchMode(bool enabled) {
+    return DeviceInfo::setTorchMode(mInterface, enabled);
+}
+
+status_t CameraProviderManager::ProviderInfo::DeviceInfo1::getCameraInfo(
+        hardware::CameraInfo *info) const {
+    if (info == nullptr) return BAD_VALUE;
+
+    Status status;
+    device::V1_0::CameraInfo cInfo;
+    hardware::Return<void> ret;
+    ret = mInterface->getCameraInfo([&status, &cInfo](Status s, device::V1_0::CameraInfo camInfo) {
+                status = s;
+                cInfo = camInfo;
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error reading camera info from device %s: %s",
+                __FUNCTION__, mId.c_str(), ret.description().c_str());
+        return DEAD_OBJECT;
+    }
+    if (status != Status::OK) {
+        return mapToStatusT(status);
+    }
+
+    switch(cInfo.facing) {
+        case device::V1_0::CameraFacing::BACK:
+            info->facing = hardware::CAMERA_FACING_BACK;
+            break;
+        case device::V1_0::CameraFacing::EXTERNAL:
+            // Map external to front for legacy API
+        case device::V1_0::CameraFacing::FRONT:
+            info->facing = hardware::CAMERA_FACING_FRONT;
+            break;
+        default:
+            ALOGW("%s: Device %s: Unknown camera facing: %d",
+                    __FUNCTION__, mId.c_str(), cInfo.facing);
+            info->facing = hardware::CAMERA_FACING_BACK;
+    }
+    info->orientation = cInfo.orientation;
+
+    return OK;
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo3::DeviceInfo3(const std::string& name,
+        const metadata_vendor_id_t tagId, const std::string &id,
+        uint16_t minorVersion,
+        const CameraResourceCost& resourceCost,
+        sp<InterfaceT> interface) :
+        DeviceInfo(name, tagId, id, hardware::hidl_version{3, minorVersion},
+                   resourceCost),
+        mInterface(interface) {
+    // Get camera characteristics and initialize flash unit availability
+    Status status;
+    hardware::Return<void> ret;
+    ret = mInterface->getCameraCharacteristics([&status, this](Status s,
+                    device::V3_2::CameraMetadata metadata) {
+                status = s;
+                if (s == Status::OK) {
+                    camera_metadata_t *buffer =
+                            reinterpret_cast<camera_metadata_t*>(metadata.data());
+                    size_t expectedSize = metadata.size();
+                    int res = validate_camera_metadata_structure(buffer, &expectedSize);
+                    if (res == OK || res == CAMERA_METADATA_VALIDATION_SHIFTED) {
+                        set_camera_metadata_vendor_id(buffer, mProviderTagid);
+                        mCameraCharacteristics = buffer;
+                    } else {
+                        ALOGE("%s: Malformed camera metadata received from HAL", __FUNCTION__);
+                        status = Status::INTERNAL_ERROR;
+                    }
+                }
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error getting camera characteristics for device %s"
+                " to check for a flash unit: %s", __FUNCTION__, mId.c_str(),
+                ret.description().c_str());
+        return;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to get camera characteristics for device %s: %s (%d)",
+                __FUNCTION__, mId.c_str(), CameraProviderManager::statusToString(status), status);
+        return;
+    }
+    camera_metadata_entry flashAvailable =
+            mCameraCharacteristics.find(ANDROID_FLASH_INFO_AVAILABLE);
+    if (flashAvailable.count == 1 &&
+            flashAvailable.data.u8[0] == ANDROID_FLASH_INFO_AVAILABLE_TRUE) {
+        mHasFlashUnit = true;
+    } else {
+        mHasFlashUnit = false;
+    }
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo3::~DeviceInfo3() {}
+
+status_t CameraProviderManager::ProviderInfo::DeviceInfo3::setTorchMode(bool enabled) {
+    return DeviceInfo::setTorchMode(mInterface, enabled);
+}
+
+status_t CameraProviderManager::ProviderInfo::DeviceInfo3::getCameraInfo(
+        hardware::CameraInfo *info) const {
+    if (info == nullptr) return BAD_VALUE;
+
+    camera_metadata_ro_entry facing =
+            mCameraCharacteristics.find(ANDROID_LENS_FACING);
+    if (facing.count == 1) {
+        switch (facing.data.u8[0]) {
+            case ANDROID_LENS_FACING_BACK:
+                info->facing = hardware::CAMERA_FACING_BACK;
+                break;
+            case ANDROID_LENS_FACING_EXTERNAL:
+                // Map external to front for legacy API
+            case ANDROID_LENS_FACING_FRONT:
+                info->facing = hardware::CAMERA_FACING_FRONT;
+                break;
+        }
+    } else {
+        ALOGE("%s: Unable to find android.lens.facing static metadata", __FUNCTION__);
+        return NAME_NOT_FOUND;
+    }
+
+    camera_metadata_ro_entry orientation =
+            mCameraCharacteristics.find(ANDROID_SENSOR_ORIENTATION);
+    if (orientation.count == 1) {
+        info->orientation = orientation.data.i32[0];
+    } else {
+        ALOGE("%s: Unable to find android.sensor.orientation static metadata", __FUNCTION__);
+        return NAME_NOT_FOUND;
+    }
+
+    return OK;
+}
+bool CameraProviderManager::ProviderInfo::DeviceInfo3::isAPI1Compatible() const {
+    bool isBackwardCompatible = false;
+    camera_metadata_ro_entry_t caps = mCameraCharacteristics.find(
+            ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
+    for (size_t i = 0; i < caps.count; i++) {
+        if (caps.data.u8[i] ==
+                ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE) {
+            isBackwardCompatible = true;
+            break;
+        }
+    }
+
+    return isBackwardCompatible;
+}
+
+status_t CameraProviderManager::ProviderInfo::DeviceInfo3::getCameraCharacteristics(
+        CameraMetadata *characteristics) const {
+    if (characteristics == nullptr) return BAD_VALUE;
+
+    *characteristics = mCameraCharacteristics;
+    return OK;
+}
+
+status_t CameraProviderManager::ProviderInfo::parseProviderName(const std::string& name,
+        std::string *type, uint32_t *id) {
+    // Format must be "<type>/<id>"
+#define ERROR_MSG_PREFIX "%s: Invalid provider name '%s'. "       \
+    "Should match '<type>/<id>' - "
+
+    if (!type || !id) return INVALID_OPERATION;
+
+    std::string::size_type slashIdx = name.find('/');
+    if (slashIdx == std::string::npos || slashIdx == name.size() - 1) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not have / separator between type and id",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+
+    std::string typeVal = name.substr(0, slashIdx);
+
+    char *endPtr;
+    errno = 0;
+    long idVal = strtol(name.c_str() + slashIdx + 1, &endPtr, 10);
+    if (errno != 0) {
+        ALOGE(ERROR_MSG_PREFIX
+                "cannot parse provider id as an integer: %s (%d)",
+                __FUNCTION__, name.c_str(), strerror(errno), errno);
+        return BAD_VALUE;
+    }
+    if (endPtr != name.c_str() + name.size()) {
+        ALOGE(ERROR_MSG_PREFIX
+                "provider id has unexpected length",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    if (idVal < 0) {
+        ALOGE(ERROR_MSG_PREFIX
+                "id is negative: %ld",
+                __FUNCTION__, name.c_str(), idVal);
+        return BAD_VALUE;
+    }
+
+#undef ERROR_MSG_PREFIX
+
+    *type = typeVal;
+    *id = static_cast<uint32_t>(idVal);
+
+    return OK;
+}
+
+metadata_vendor_id_t CameraProviderManager::ProviderInfo::generateVendorTagId(
+        const std::string &name) {
+    metadata_vendor_id_t ret = std::hash<std::string> {} (name);
+    // CAMERA_METADATA_INVALID_VENDOR_ID is not a valid hash value
+    if (CAMERA_METADATA_INVALID_VENDOR_ID == ret) {
+        ret = 0;
+    }
+
+    return ret;
+}
+
+status_t CameraProviderManager::ProviderInfo::parseDeviceName(const std::string& name,
+        uint16_t *major, uint16_t *minor, std::string *type, std::string *id) {
+
+    // Format must be "device@<major>.<minor>/<type>/<id>"
+
+#define ERROR_MSG_PREFIX "%s: Invalid device name '%s'. " \
+    "Should match 'device@<major>.<minor>/<type>/<id>' - "
+
+    if (!major || !minor || !type || !id) return INVALID_OPERATION;
+
+    // Verify starting prefix
+    const char expectedPrefix[] = "device@";
+
+    if (name.find(expectedPrefix) != 0) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not start with '%s'",
+                __FUNCTION__, name.c_str(), expectedPrefix);
+        return BAD_VALUE;
+    }
+
+    // Extract major/minor versions
+    constexpr std::string::size_type atIdx = sizeof(expectedPrefix) - 2;
+    std::string::size_type dotIdx = name.find('.', atIdx);
+    if (dotIdx == std::string::npos) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not have @<major>. version section",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    std::string::size_type typeSlashIdx = name.find('/', dotIdx);
+    if (typeSlashIdx == std::string::npos) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not have .<minor>/ version section",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+
+    char *endPtr;
+    errno = 0;
+    long majorVal = strtol(name.c_str() + atIdx + 1, &endPtr, 10);
+    if (errno != 0) {
+        ALOGE(ERROR_MSG_PREFIX
+                "cannot parse major version: %s (%d)",
+                __FUNCTION__, name.c_str(), strerror(errno), errno);
+        return BAD_VALUE;
+    }
+    if (endPtr != name.c_str() + dotIdx) {
+        ALOGE(ERROR_MSG_PREFIX
+                "major version has unexpected length",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    long minorVal = strtol(name.c_str() + dotIdx + 1, &endPtr, 10);
+    if (errno != 0) {
+        ALOGE(ERROR_MSG_PREFIX
+                "cannot parse minor version: %s (%d)",
+                __FUNCTION__, name.c_str(), strerror(errno), errno);
+        return BAD_VALUE;
+    }
+    if (endPtr != name.c_str() + typeSlashIdx) {
+        ALOGE(ERROR_MSG_PREFIX
+                "minor version has unexpected length",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    if (majorVal < 0 || majorVal > UINT16_MAX || minorVal < 0 || minorVal > UINT16_MAX) {
+        ALOGE(ERROR_MSG_PREFIX
+                "major/minor version is out of range of uint16_t: %ld.%ld",
+                __FUNCTION__, name.c_str(), majorVal, minorVal);
+        return BAD_VALUE;
+    }
+
+    // Extract type and id
+
+    std::string::size_type instanceSlashIdx = name.find('/', typeSlashIdx + 1);
+    if (instanceSlashIdx == std::string::npos) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not have /<type>/ component",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    std::string typeVal = name.substr(typeSlashIdx + 1, instanceSlashIdx - typeSlashIdx - 1);
+
+    if (instanceSlashIdx == name.size() - 1) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not have an /<id> component",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    std::string idVal = name.substr(instanceSlashIdx + 1);
+
+#undef ERROR_MSG_PREFIX
+
+    *major = static_cast<uint16_t>(majorVal);
+    *minor = static_cast<uint16_t>(minorVal);
+    *type = typeVal;
+    *id = idVal;
+
+    return OK;
+}
+
+
+
+CameraProviderManager::ProviderInfo::~ProviderInfo() {
+    // Destruction of ProviderInfo is only supposed to happen when the respective
+    // CameraProvider interface dies, so do not unregister callbacks.
+
+}
+
+status_t CameraProviderManager::mapToStatusT(const Status& s)  {
+    switch(s) {
+        case Status::OK:
+            return OK;
+        case Status::ILLEGAL_ARGUMENT:
+            return BAD_VALUE;
+        case Status::CAMERA_IN_USE:
+            return -EBUSY;
+        case Status::MAX_CAMERAS_IN_USE:
+            return -EUSERS;
+        case Status::METHOD_NOT_SUPPORTED:
+            return UNKNOWN_TRANSACTION;
+        case Status::OPERATION_NOT_SUPPORTED:
+            return INVALID_OPERATION;
+        case Status::CAMERA_DISCONNECTED:
+            return DEAD_OBJECT;
+        case Status::INTERNAL_ERROR:
+            return INVALID_OPERATION;
+    }
+    ALOGW("Unexpected HAL status code %d", s);
+    return INVALID_OPERATION;
+}
+
+const char* CameraProviderManager::statusToString(const Status& s) {
+    switch(s) {
+        case Status::OK:
+            return "OK";
+        case Status::ILLEGAL_ARGUMENT:
+            return "ILLEGAL_ARGUMENT";
+        case Status::CAMERA_IN_USE:
+            return "CAMERA_IN_USE";
+        case Status::MAX_CAMERAS_IN_USE:
+            return "MAX_CAMERAS_IN_USE";
+        case Status::METHOD_NOT_SUPPORTED:
+            return "METHOD_NOT_SUPPORTED";
+        case Status::OPERATION_NOT_SUPPORTED:
+            return "OPERATION_NOT_SUPPORTED";
+        case Status::CAMERA_DISCONNECTED:
+            return "CAMERA_DISCONNECTED";
+        case Status::INTERNAL_ERROR:
+            return "INTERNAL_ERROR";
+    }
+    ALOGW("Unexpected HAL status code %d", s);
+    return "UNKNOWN_ERROR";
+}
+
+const char* CameraProviderManager::deviceStatusToString(const CameraDeviceStatus& s) {
+    switch(s) {
+        case CameraDeviceStatus::NOT_PRESENT:
+            return "NOT_PRESENT";
+        case CameraDeviceStatus::PRESENT:
+            return "PRESENT";
+        case CameraDeviceStatus::ENUMERATING:
+            return "ENUMERATING";
+    }
+    ALOGW("Unexpected HAL device status code %d", s);
+    return "UNKNOWN_STATUS";
+}
+
+const char* CameraProviderManager::torchStatusToString(const TorchModeStatus& s) {
+    switch(s) {
+        case TorchModeStatus::NOT_AVAILABLE:
+            return "NOT_AVAILABLE";
+        case TorchModeStatus::AVAILABLE_OFF:
+            return "AVAILABLE_OFF";
+        case TorchModeStatus::AVAILABLE_ON:
+            return "AVAILABLE_ON";
+    }
+    ALOGW("Unexpected HAL torch mode status code %d", s);
+    return "UNKNOWN_STATUS";
+}
+
+
+status_t HidlVendorTagDescriptor::createDescriptorFromHidl(
+        const hardware::hidl_vec<hardware::camera::common::V1_0::VendorTagSection>& vts,
+        /*out*/
+        sp<VendorTagDescriptor>& descriptor) {
+
+    int tagCount = 0;
+
+    for (size_t s = 0; s < vts.size(); s++) {
+        tagCount += vts[s].tags.size();
+    }
+
+    if (tagCount < 0 || tagCount > INT32_MAX) {
+        ALOGE("%s: tag count %d from vendor tag sections is invalid.", __FUNCTION__, tagCount);
+        return BAD_VALUE;
+    }
+
+    Vector<uint32_t> tagArray;
+    LOG_ALWAYS_FATAL_IF(tagArray.resize(tagCount) != tagCount,
+            "%s: too many (%u) vendor tags defined.", __FUNCTION__, tagCount);
+
+
+    sp<HidlVendorTagDescriptor> desc = new HidlVendorTagDescriptor();
+    desc->mTagCount = tagCount;
+
+    SortedVector<String8> sections;
+    KeyedVector<uint32_t, String8> tagToSectionMap;
+
+    int idx = 0;
+    for (size_t s = 0; s < vts.size(); s++) {
+        const hardware::camera::common::V1_0::VendorTagSection& section = vts[s];
+        const char *sectionName = section.sectionName.c_str();
+        if (sectionName == NULL) {
+            ALOGE("%s: no section name defined for vendor tag section %zu.", __FUNCTION__, s);
+            return BAD_VALUE;
+        }
+        String8 sectionString(sectionName);
+        sections.add(sectionString);
+
+        for (size_t j = 0; j < section.tags.size(); j++) {
+            uint32_t tag = section.tags[j].tagId;
+            if (tag < CAMERA_METADATA_VENDOR_TAG_BOUNDARY) {
+                ALOGE("%s: vendor tag %d not in vendor tag section.", __FUNCTION__, tag);
+                return BAD_VALUE;
+            }
+
+            tagArray.editItemAt(idx++) = section.tags[j].tagId;
+
+            const char *tagName = section.tags[j].tagName.c_str();
+            if (tagName == NULL) {
+                ALOGE("%s: no tag name defined for vendor tag %d.", __FUNCTION__, tag);
+                return BAD_VALUE;
+            }
+            desc->mTagToNameMap.add(tag, String8(tagName));
+            tagToSectionMap.add(tag, sectionString);
+
+            int tagType = (int) section.tags[j].tagType;
+            if (tagType < 0 || tagType >= NUM_TYPES) {
+                ALOGE("%s: tag type %d from vendor ops does not exist.", __FUNCTION__, tagType);
+                return BAD_VALUE;
+            }
+            desc->mTagToTypeMap.add(tag, tagType);
+        }
+    }
+
+    desc->mSections = sections;
+
+    for (size_t i = 0; i < tagArray.size(); ++i) {
+        uint32_t tag = tagArray[i];
+        String8 sectionString = tagToSectionMap.valueFor(tag);
+
+        // Set up tag to section index map
+        ssize_t index = sections.indexOf(sectionString);
+        LOG_ALWAYS_FATAL_IF(index < 0, "index %zd must be non-negative", index);
+        desc->mTagToSectionMap.add(tag, static_cast<uint32_t>(index));
+
+        // Set up reverse mapping
+        ssize_t reverseIndex = -1;
+        if ((reverseIndex = desc->mReverseMapping.indexOfKey(sectionString)) < 0) {
+            KeyedVector<String8, uint32_t>* nameMapper = new KeyedVector<String8, uint32_t>();
+            reverseIndex = desc->mReverseMapping.add(sectionString, nameMapper);
+        }
+        desc->mReverseMapping[reverseIndex]->add(desc->mTagToNameMap.valueFor(tag), tag);
+    }
+
+    descriptor = desc;
+    return OK;
+}
+
+
+} // namespace android
diff --git a/services/camera/libcameraservice/common/CameraProviderManager.h b/services/camera/libcameraservice/common/CameraProviderManager.h
new file mode 100644
index 0000000..e82282f
--- /dev/null
+++ b/services/camera/libcameraservice/common/CameraProviderManager.h
@@ -0,0 +1,416 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SERVERS_CAMERA_CAMERAPROVIDER_H
+#define ANDROID_SERVERS_CAMERA_CAMERAPROVIDER_H
+
+#include <vector>
+#include <set>
+#include <string>
+#include <mutex>
+
+#include <camera/CameraParameters2.h>
+#include <camera/CameraMetadata.h>
+#include <camera/CameraBase.h>
+#include <utils/Errors.h>
+#include <android/hardware/camera/common/1.0/types.h>
+#include <android/hardware/camera/provider/2.4/ICameraProvider.h>
+//#include <android/hardware/camera/provider/2.4/ICameraProviderCallbacks.h>
+#include <android/hidl/manager/1.0/IServiceNotification.h>
+#include <camera/VendorTagDescriptor.h>
+
+namespace android {
+
+/**
+ * The vendor tag descriptor class that takes HIDL vendor tag information as
+ * input. Not part of VendorTagDescriptor class because that class is used
+ * in AIDL generated sources which don't have access to HIDL headers.
+ */
+class HidlVendorTagDescriptor : public VendorTagDescriptor {
+public:
+    /**
+     * Create a VendorTagDescriptor object from the HIDL VendorTagSection
+     * vector.
+     *
+     * Returns OK on success, or a negative error code.
+     */
+    static status_t createDescriptorFromHidl(
+            const hardware::hidl_vec<hardware::camera::common::V1_0::VendorTagSection>& vts,
+            /*out*/
+            sp<VendorTagDescriptor>& descriptor);
+};
+
+/**
+ * A manager for all camera providers available on an Android device.
+ *
+ * Responsible for enumerating providers and the individual camera devices
+ * they export, both at startup and as providers and devices are added/removed.
+ *
+ * Provides methods for requesting information about individual devices and for
+ * opening them for active use.
+ *
+ */
+class CameraProviderManager : virtual public hidl::manager::V1_0::IServiceNotification {
+public:
+
+    ~CameraProviderManager();
+
+    // Tiny proxy for the static methods in a HIDL interface that communicate with the hardware
+    // service manager, to be replacable in unit tests with a fake.
+    struct ServiceInteractionProxy {
+        virtual bool registerForNotifications(
+                const std::string &serviceName,
+                const sp<hidl::manager::V1_0::IServiceNotification>
+                &notification) = 0;
+        virtual sp<hardware::camera::provider::V2_4::ICameraProvider> getService(
+                const std::string &serviceName) = 0;
+        virtual ~ServiceInteractionProxy() {}
+    };
+
+    // Standard use case - call into the normal generated static methods which invoke
+    // the real hardware service manager
+    struct HardwareServiceInteractionProxy : public ServiceInteractionProxy {
+        virtual bool registerForNotifications(
+                const std::string &serviceName,
+                const sp<hidl::manager::V1_0::IServiceNotification>
+                &notification) override {
+            return hardware::camera::provider::V2_4::ICameraProvider::registerForNotifications(
+                    serviceName, notification);
+        }
+        virtual sp<hardware::camera::provider::V2_4::ICameraProvider> getService(
+                const std::string &serviceName) override {
+            return hardware::camera::provider::V2_4::ICameraProvider::getService(serviceName);
+        }
+    };
+
+    /**
+     * Listener interface for device/torch status changes
+     */
+    struct StatusListener : virtual public RefBase {
+        ~StatusListener() {}
+
+        virtual void onDeviceStatusChanged(const String8 &cameraId,
+                hardware::camera::common::V1_0::CameraDeviceStatus newStatus) = 0;
+        virtual void onTorchStatusChanged(const String8 &cameraId,
+                hardware::camera::common::V1_0::TorchModeStatus newStatus) = 0;
+        virtual void onNewProviderRegistered() = 0;
+    };
+
+    /**
+     * Initialize the manager and give it a status listener; optionally accepts a service
+     * interaction proxy.
+     *
+     * The default proxy communicates via the hardware service manager; alternate proxies can be
+     * used for testing. The lifetime of the proxy must exceed the lifetime of the manager.
+     */
+    status_t initialize(wp<StatusListener> listener,
+            ServiceInteractionProxy *proxy = &sHardwareServiceInteractionProxy);
+
+    /**
+     * Retrieve the total number of available cameras. This value may change dynamically as cameras
+     * are added or removed.
+     */
+    int getCameraCount() const;
+
+    /**
+     * Retrieve the number of API1 compatible cameras; these are internal and
+     * backwards-compatible. This is the set of cameras that will be
+     * accessible via the old camera API, with IDs in range of
+     * [0, getAPI1CompatibleCameraCount()-1]. This value is not expected to change dynamically.
+     */
+    int getAPI1CompatibleCameraCount() const;
+
+    std::vector<std::string> getCameraDeviceIds() const;
+
+    std::vector<std::string> getAPI1CompatibleCameraDeviceIds() const;
+
+    /**
+     * Return true if a device with a given ID and major version exists
+     */
+    bool isValidDevice(const std::string &id, uint16_t majorVersion) const;
+
+    /**
+     * Return true if a device with a given ID has a flash unit. Returns false
+     * for devices that are unknown.
+     */
+    bool hasFlashUnit(const std::string &id) const;
+
+    /**
+     * Return the resource cost of this camera device
+     */
+    status_t getResourceCost(const std::string &id,
+            hardware::camera::common::V1_0::CameraResourceCost* cost) const;
+
+    /**
+     * Return the old camera API camera info
+     */
+    status_t getCameraInfo(const std::string &id,
+            hardware::CameraInfo* info) const;
+
+    /**
+     * Return API2 camera characteristics - returns NAME_NOT_FOUND if a device ID does
+     * not have a v3 or newer HAL version.
+     */
+    status_t getCameraCharacteristics(const std::string &id,
+            CameraMetadata* characteristics) const;
+
+    /**
+     * Return the highest supported device interface version for this ID
+     */
+    status_t getHighestSupportedVersion(const std::string &id,
+            hardware::hidl_version *v);
+
+    /**
+     * Check if a given camera device support setTorchMode API.
+     */
+    bool supportSetTorchMode(const std::string &id);
+
+    /**
+     * Turn on or off the flashlight on a given camera device.
+     * May fail if the device does not support this API, is in active use, or if the device
+     * doesn't exist, etc.
+     */
+    status_t setTorchMode(const std::string &id, bool enabled);
+
+    /**
+     * Setup vendor tags for all registered providers
+     */
+    status_t setUpVendorTags();
+
+    /**
+     * Open an active session to a camera device.
+     *
+     * This fully powers on the camera device hardware, and returns a handle to a
+     * session to be used for hardware configuration and operation.
+     */
+    status_t openSession(const std::string &id,
+            const sp<hardware::camera::device::V3_2::ICameraDeviceCallback>& callback,
+            /*out*/
+            sp<hardware::camera::device::V3_2::ICameraDeviceSession> *session);
+
+    status_t openSession(const std::string &id,
+            const sp<hardware::camera::device::V1_0::ICameraDeviceCallback>& callback,
+            /*out*/
+            sp<hardware::camera::device::V1_0::ICameraDevice> *session);
+
+    /**
+     * IServiceNotification::onRegistration
+     * Invoked by the hardware service manager when a new camera provider is registered
+     */
+    virtual hardware::Return<void> onRegistration(const hardware::hidl_string& fqName,
+            const hardware::hidl_string& name,
+            bool preexisting) override;
+
+    /**
+     * Dump out information about available providers and devices
+     */
+    status_t dump(int fd, const Vector<String16>& args);
+
+    /**
+     * Conversion methods between HAL Status and status_t and strings
+     */
+    static status_t mapToStatusT(const hardware::camera::common::V1_0::Status& s);
+    static const char* statusToString(const hardware::camera::common::V1_0::Status& s);
+
+    /*
+     * Return provider type for a specific device.
+     */
+    metadata_vendor_id_t getProviderTagIdLocked(const std::string& id,
+            hardware::hidl_version minVersion = hardware::hidl_version{0,0},
+            hardware::hidl_version maxVersion = hardware::hidl_version{1000,0}) const;
+
+private:
+    // All private members, unless otherwise noted, expect mInterfaceMutex to be locked before use
+    mutable std::mutex mInterfaceMutex;
+
+    // the status listener update callbacks will lock mStatusMutex
+    mutable std::mutex mStatusListenerMutex;
+    wp<StatusListener> mListener;
+    ServiceInteractionProxy* mServiceProxy;
+
+    static HardwareServiceInteractionProxy sHardwareServiceInteractionProxy;
+
+    struct ProviderInfo :
+            virtual public hardware::camera::provider::V2_4::ICameraProviderCallback,
+            virtual public hardware::hidl_death_recipient
+    {
+        const std::string mProviderName;
+        const sp<hardware::camera::provider::V2_4::ICameraProvider> mInterface;
+        const metadata_vendor_id_t mProviderTagid;
+
+        ProviderInfo(const std::string &providerName,
+                sp<hardware::camera::provider::V2_4::ICameraProvider>& interface,
+                CameraProviderManager *manager);
+        ~ProviderInfo();
+
+        status_t initialize();
+
+        const std::string& getType() const;
+
+        status_t addDevice(const std::string& name,
+                hardware::camera::common::V1_0::CameraDeviceStatus initialStatus =
+                hardware::camera::common::V1_0::CameraDeviceStatus::PRESENT,
+                /*out*/ std::string *parsedId = nullptr);
+
+        status_t dump(int fd, const Vector<String16>& args) const;
+
+        // ICameraProviderCallbacks interface - these lock the parent mInterfaceMutex
+        virtual hardware::Return<void> cameraDeviceStatusChange(
+                const hardware::hidl_string& cameraDeviceName,
+                hardware::camera::common::V1_0::CameraDeviceStatus newStatus) override;
+        virtual hardware::Return<void> torchModeStatusChange(
+                const hardware::hidl_string& cameraDeviceName,
+                hardware::camera::common::V1_0::TorchModeStatus newStatus) override;
+
+        // hidl_death_recipient interface - this locks the parent mInterfaceMutex
+        virtual void serviceDied(uint64_t cookie, const wp<hidl::base::V1_0::IBase>& who) override;
+
+        // Basic device information, common to all camera devices
+        struct DeviceInfo {
+            const std::string mName;  // Full instance name
+            const std::string mId;    // ID section of full name
+            const hardware::hidl_version mVersion;
+            const metadata_vendor_id_t mProviderTagid;
+
+            const hardware::camera::common::V1_0::CameraResourceCost mResourceCost;
+
+            hardware::camera::common::V1_0::CameraDeviceStatus mStatus;
+
+            bool hasFlashUnit() const { return mHasFlashUnit; }
+            virtual status_t setTorchMode(bool enabled) = 0;
+            virtual status_t getCameraInfo(hardware::CameraInfo *info) const = 0;
+            virtual bool isAPI1Compatible() const = 0;
+            virtual status_t getCameraCharacteristics(CameraMetadata *characteristics) const {
+                (void) characteristics;
+                return INVALID_OPERATION;
+            }
+
+            DeviceInfo(const std::string& name, const metadata_vendor_id_t tagId,
+                    const std::string &id, const hardware::hidl_version& version,
+                    const hardware::camera::common::V1_0::CameraResourceCost& resourceCost) :
+                    mName(name), mId(id), mVersion(version), mProviderTagid(tagId),
+                    mResourceCost(resourceCost),
+                    mStatus(hardware::camera::common::V1_0::CameraDeviceStatus::PRESENT),
+                    mHasFlashUnit(false) {}
+            virtual ~DeviceInfo();
+        protected:
+            bool mHasFlashUnit;
+
+            template<class InterfaceT>
+            static status_t setTorchMode(InterfaceT& interface, bool enabled);
+        };
+        std::vector<std::unique_ptr<DeviceInfo>> mDevices;
+        std::set<std::string> mUniqueCameraIds;
+        int mUniqueDeviceCount;
+        std::set<std::string> mUniqueAPI1CompatibleCameraIds;
+
+        // HALv1-specific camera fields, including the actual device interface
+        struct DeviceInfo1 : public DeviceInfo {
+            typedef hardware::camera::device::V1_0::ICameraDevice InterfaceT;
+            const sp<InterfaceT> mInterface;
+
+            virtual status_t setTorchMode(bool enabled) override;
+            virtual status_t getCameraInfo(hardware::CameraInfo *info) const override;
+            //In case of Device1Info assume that we are always API1 compatible
+            virtual bool isAPI1Compatible() const override { return true; }
+            DeviceInfo1(const std::string& name, const metadata_vendor_id_t tagId,
+                    const std::string &id, uint16_t minorVersion,
+                    const hardware::camera::common::V1_0::CameraResourceCost& resourceCost,
+                    sp<InterfaceT> interface);
+            virtual ~DeviceInfo1();
+        private:
+            CameraParameters2 mDefaultParameters;
+        };
+
+        // HALv3-specific camera fields, including the actual device interface
+        struct DeviceInfo3 : public DeviceInfo {
+            typedef hardware::camera::device::V3_2::ICameraDevice InterfaceT;
+            const sp<InterfaceT> mInterface;
+
+            virtual status_t setTorchMode(bool enabled) override;
+            virtual status_t getCameraInfo(hardware::CameraInfo *info) const override;
+            virtual bool isAPI1Compatible() const override;
+            virtual status_t getCameraCharacteristics(
+                    CameraMetadata *characteristics) const override;
+
+            DeviceInfo3(const std::string& name, const metadata_vendor_id_t tagId,
+                    const std::string &id, uint16_t minorVersion,
+                    const hardware::camera::common::V1_0::CameraResourceCost& resourceCost,
+                    sp<InterfaceT> interface);
+            virtual ~DeviceInfo3();
+        private:
+            CameraMetadata mCameraCharacteristics;
+        };
+
+    private:
+        std::string mType;
+        uint32_t mId;
+
+        std::mutex mLock;
+
+        CameraProviderManager *mManager;
+
+        // Templated method to instantiate the right kind of DeviceInfo and call the
+        // right CameraProvider getCameraDeviceInterface_* method.
+        template<class DeviceInfoT>
+        std::unique_ptr<DeviceInfo> initializeDeviceInfo(const std::string &name,
+                const metadata_vendor_id_t tagId, const std::string &id,
+                uint16_t minorVersion) const;
+
+        // Helper for initializeDeviceInfo to use the right CameraProvider get method.
+        template<class InterfaceT>
+        sp<InterfaceT> getDeviceInterface(const std::string &name) const;
+
+        // Parse provider instance name for type and id
+        static status_t parseProviderName(const std::string& name,
+                std::string *type, uint32_t *id);
+
+        // Parse device instance name for device version, type, and id.
+        static status_t parseDeviceName(const std::string& name,
+                uint16_t *major, uint16_t *minor, std::string *type, std::string *id);
+
+        // Generate vendor tag id
+        static metadata_vendor_id_t generateVendorTagId(const std::string &name);
+    };
+
+    // Utility to find a DeviceInfo by ID; pointer is only valid while mInterfaceMutex is held
+    // and the calling code doesn't mutate the list of providers or their lists of devices.
+    // Finds the first device of the given ID that falls within the requested version range
+    //   minVersion <= deviceVersion < maxVersion
+    // No guarantees on the order of traversal
+    ProviderInfo::DeviceInfo* findDeviceInfoLocked(const std::string& id,
+            hardware::hidl_version minVersion = hardware::hidl_version{0,0},
+            hardware::hidl_version maxVersion = hardware::hidl_version{1000,0}) const;
+
+    status_t addProviderLocked(const std::string& newProvider, bool expected = true);
+
+    status_t removeProvider(const std::string& provider);
+    sp<StatusListener> getStatusListener() const;
+
+    bool isValidDeviceLocked(const std::string &id, uint16_t majorVersion) const;
+
+    std::vector<sp<ProviderInfo>> mProviders;
+
+    static const char* deviceStatusToString(
+        const hardware::camera::common::V1_0::CameraDeviceStatus&);
+    static const char* torchStatusToString(
+        const hardware::camera::common::V1_0::TorchModeStatus&);
+
+};
+
+} // namespace android
+
+#endif
diff --git a/services/camera/libcameraservice/common/FrameProcessorBase.cpp b/services/camera/libcameraservice/common/FrameProcessorBase.cpp
index 29eb78f..41c953b 100644
--- a/services/camera/libcameraservice/common/FrameProcessorBase.cpp
+++ b/services/camera/libcameraservice/common/FrameProcessorBase.cpp
@@ -32,8 +32,7 @@
     mDevice(device),
     mNumPartialResults(1) {
     sp<CameraDeviceBase> cameraDevice = device.promote();
-    if (cameraDevice != 0 &&
-            cameraDevice->getDeviceVersion() >= CAMERA_DEVICE_API_VERSION_3_2) {
+    if (cameraDevice != 0) {
         CameraMetadata staticInfo = cameraDevice->info();
         camera_metadata_entry_t entry = staticInfo.find(ANDROID_REQUEST_PARTIAL_RESULT_COUNT);
         if (entry.count > 0) {
@@ -47,7 +46,7 @@
 }
 
 status_t FrameProcessorBase::registerListener(int32_t minId,
-        int32_t maxId, wp<FilteredListener> listener, bool sendPartials) {
+        int32_t maxId, const wp<FilteredListener>& listener, bool sendPartials) {
     Mutex::Autolock l(mInputMutex);
     List<RangeListener>::iterator item = mRangeListeners.begin();
     while (item != mRangeListeners.end()) {
@@ -70,7 +69,7 @@
 
 status_t FrameProcessorBase::removeListener(int32_t minId,
                                            int32_t maxId,
-                                           wp<FilteredListener> listener) {
+                                           const wp<FilteredListener>& listener) {
     Mutex::Autolock l(mInputMutex);
     List<RangeListener>::iterator item = mRangeListeners.begin();
     while (item != mRangeListeners.end()) {
@@ -123,7 +122,7 @@
     ATRACE_CALL();
     CaptureResult result;
 
-    ALOGV("%s: Camera %d: Process new frames", __FUNCTION__, device->getId());
+    ALOGV("%s: Camera %s: Process new frames", __FUNCTION__, device->getId().string());
 
     while ( (res = device->getNextResult(&result)) == OK) {
 
@@ -133,8 +132,8 @@
 
         entry = result.mMetadata.find(ANDROID_REQUEST_FRAME_COUNT);
         if (entry.count == 0) {
-            ALOGE("%s: Camera %d: Error reading frame number",
-                    __FUNCTION__, device->getId());
+            ALOGE("%s: Camera %s: Error reading frame number",
+                    __FUNCTION__, device->getId().string());
             break;
         }
         ATRACE_INT("cam2_frame", entry.data.i32[0]);
@@ -149,8 +148,8 @@
         }
     }
     if (res != NOT_ENOUGH_DATA) {
-        ALOGE("%s: Camera %d: Error getting next frame: %s (%d)",
-                __FUNCTION__, device->getId(), strerror(-res), res);
+        ALOGE("%s: Camera %s: Error getting next frame: %s (%d)",
+                __FUNCTION__, device->getId().string(), strerror(-res), res);
         return;
     }
 
@@ -159,8 +158,8 @@
 
 bool FrameProcessorBase::processSingleFrame(CaptureResult &result,
                                             const sp<CameraDeviceBase> &device) {
-    ALOGV("%s: Camera %d: Process single frame (is empty? %d)",
-          __FUNCTION__, device->getId(), result.mMetadata.isEmpty());
+    ALOGV("%s: Camera %s: Process single frame (is empty? %d)",
+            __FUNCTION__, device->getId().string(), result.mMetadata.isEmpty());
     return processListeners(result, device) == OK;
 }
 
@@ -171,18 +170,8 @@
     camera_metadata_ro_entry_t entry;
 
     // Check if this result is partial.
-    bool isPartialResult = false;
-    if (device->getDeviceVersion() >= CAMERA_DEVICE_API_VERSION_3_2) {
-        isPartialResult = result.mResultExtras.partialResultCount < mNumPartialResults;
-    } else {
-        entry = result.mMetadata.find(ANDROID_QUIRKS_PARTIAL_RESULT);
-        if (entry.count != 0 &&
-                entry.data.u8[0] == ANDROID_QUIRKS_PARTIAL_RESULT_PARTIAL) {
-            ALOGV("%s: Camera %d: This is a partial result",
-                    __FUNCTION__, device->getId());
-            isPartialResult = true;
-        }
-    }
+    bool isPartialResult =
+            result.mResultExtras.partialResultCount < mNumPartialResults;
 
     // TODO: instead of getting requestID from CameraMetadata, we should get it
     // from CaptureResultExtras. This will require changing Camera2Device.
@@ -190,7 +179,7 @@
     // include CaptureResultExtras.
     entry = result.mMetadata.find(ANDROID_REQUEST_ID);
     if (entry.count == 0) {
-        ALOGE("%s: Camera %d: Error reading frame id", __FUNCTION__, device->getId());
+        ALOGE("%s: Camera %s: Error reading frame id", __FUNCTION__, device->getId().string());
         return BAD_VALUE;
     }
     int32_t requestId = entry.data.i32[0];
@@ -215,8 +204,8 @@
             item++;
         }
     }
-    ALOGV("%s: Camera %d: Got %zu range listeners out of %zu", __FUNCTION__,
-          device->getId(), listeners.size(), mRangeListeners.size());
+    ALOGV("%s: Camera %s: Got %zu range listeners out of %zu", __FUNCTION__,
+          device->getId().string(), listeners.size(), mRangeListeners.size());
 
     List<sp<FilteredListener> >::iterator item = listeners.begin();
     for (; item != listeners.end(); item++) {
diff --git a/services/camera/libcameraservice/common/FrameProcessorBase.h b/services/camera/libcameraservice/common/FrameProcessorBase.h
index a618d84..00763a4 100644
--- a/services/camera/libcameraservice/common/FrameProcessorBase.h
+++ b/services/camera/libcameraservice/common/FrameProcessorBase.h
@@ -36,7 +36,7 @@
  */
 class FrameProcessorBase: public Thread {
   public:
-    FrameProcessorBase(wp<CameraDeviceBase> device);
+    explicit FrameProcessorBase(wp<CameraDeviceBase> device);
     virtual ~FrameProcessorBase();
 
     struct FilteredListener: virtual public RefBase {
@@ -48,10 +48,10 @@
     // the same range of IDs has no effect.
     // sendPartials controls whether partial results will be sent.
     status_t registerListener(int32_t minId, int32_t maxId,
-                              wp<FilteredListener> listener,
+                              const wp<FilteredListener>& listener,
                               bool sendPartials = true);
     status_t removeListener(int32_t minId, int32_t maxId,
-                            wp<FilteredListener> listener);
+                            const wp<FilteredListener>& listener);
 
     void dump(int fd, const Vector<String16>& args);
   protected:
diff --git a/services/camera/libcameraservice/device1/CameraHardwareInterface.cpp b/services/camera/libcameraservice/device1/CameraHardwareInterface.cpp
new file mode 100644
index 0000000..469c86c
--- /dev/null
+++ b/services/camera/libcameraservice/device1/CameraHardwareInterface.cpp
@@ -0,0 +1,1044 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "CameraHardwareInterface"
+//#define LOG_NDEBUG 0
+
+#include <inttypes.h>
+#include <media/hardware/HardwareAPI.h> // For VideoNativeHandleMetadata
+#include "CameraHardwareInterface.h"
+
+namespace android {
+
+using namespace hardware::camera::device::V1_0;
+using namespace hardware::camera::common::V1_0;
+using hardware::hidl_handle;
+
+CameraHardwareInterface::~CameraHardwareInterface()
+{
+    ALOGI("Destroying camera %s", mName.string());
+    if (mDevice) {
+        int rc = mDevice->common.close(&mDevice->common);
+        if (rc != OK)
+            ALOGE("Could not close camera %s: %d", mName.string(), rc);
+    }
+    if (mHidlDevice != nullptr) {
+        mHidlDevice->close();
+        mHidlDevice.clear();
+        cleanupCirculatingBuffers();
+    }
+}
+
+status_t CameraHardwareInterface::initialize(sp<CameraProviderManager> manager) {
+    if (mDevice) {
+        ALOGE("%s: camera hardware interface has been initialized to libhardware path!",
+                __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+
+    ALOGI("Opening camera %s", mName.string());
+
+    status_t ret = manager->openSession(mName.string(), this, &mHidlDevice);
+    if (ret != OK) {
+        ALOGE("%s: openSession failed! %s (%d)", __FUNCTION__, strerror(-ret), ret);
+    }
+    return ret;
+}
+
+status_t CameraHardwareInterface::setPreviewScalingMode(int scalingMode)
+{
+    int rc = OK;
+    mPreviewScalingMode = scalingMode;
+    if (mPreviewWindow != nullptr) {
+        rc = native_window_set_scaling_mode(mPreviewWindow.get(),
+                scalingMode);
+    }
+    return rc;
+}
+
+status_t CameraHardwareInterface::setPreviewTransform(int transform) {
+    int rc = OK;
+    mPreviewTransform = transform;
+    if (mPreviewWindow != nullptr) {
+        rc = native_window_set_buffers_transform(mPreviewWindow.get(),
+                mPreviewTransform);
+    }
+    return rc;
+}
+
+/**
+ * Implementation of android::hardware::camera::device::V1_0::ICameraDeviceCallback
+ */
+hardware::Return<void> CameraHardwareInterface::notifyCallback(
+        NotifyCallbackMsg msgType, int32_t ext1, int32_t ext2) {
+    sNotifyCb((int32_t) msgType, ext1, ext2, (void*) this);
+    return hardware::Void();
+}
+
+hardware::Return<uint32_t> CameraHardwareInterface::registerMemory(
+        const hardware::hidl_handle& descriptor,
+        uint32_t bufferSize, uint32_t bufferCount) {
+    if (descriptor->numFds != 1) {
+        ALOGE("%s: camera memory descriptor has numFds %d (expect 1)",
+                __FUNCTION__, descriptor->numFds);
+        return 0;
+    }
+    if (descriptor->data[0] < 0) {
+        ALOGE("%s: camera memory descriptor has FD %d (expect >= 0)",
+                __FUNCTION__, descriptor->data[0]);
+        return 0;
+    }
+
+    camera_memory_t* mem = sGetMemory(descriptor->data[0], bufferSize, bufferCount, this);
+    sp<CameraHeapMemory> camMem(static_cast<CameraHeapMemory *>(mem->handle));
+    int memPoolId = camMem->mHeap->getHeapID();
+    if (memPoolId < 0) {
+        ALOGE("%s: CameraHeapMemory has FD %d (expect >= 0)", __FUNCTION__, memPoolId);
+        return 0;
+    }
+    mHidlMemPoolMap.insert(std::make_pair(memPoolId, mem));
+    return memPoolId;
+}
+
+hardware::Return<void> CameraHardwareInterface::unregisterMemory(uint32_t memId) {
+    if (mHidlMemPoolMap.count(memId) == 0) {
+        ALOGE("%s: memory pool ID %d not found", __FUNCTION__, memId);
+        return hardware::Void();
+    }
+    camera_memory_t* mem = mHidlMemPoolMap.at(memId);
+    sPutMemory(mem);
+    mHidlMemPoolMap.erase(memId);
+    return hardware::Void();
+}
+
+hardware::Return<void> CameraHardwareInterface::dataCallback(
+        DataCallbackMsg msgType, uint32_t data, uint32_t bufferIndex,
+        const hardware::camera::device::V1_0::CameraFrameMetadata& metadata) {
+    if (mHidlMemPoolMap.count(data) == 0) {
+        ALOGE("%s: memory pool ID %d not found", __FUNCTION__, data);
+        return hardware::Void();
+    }
+    camera_frame_metadata_t md;
+    md.number_of_faces = metadata.faces.size();
+    md.faces = (camera_face_t*) metadata.faces.data();
+    sDataCb((int32_t) msgType, mHidlMemPoolMap.at(data), bufferIndex, &md, this);
+    return hardware::Void();
+}
+
+hardware::Return<void> CameraHardwareInterface::dataCallbackTimestamp(
+        DataCallbackMsg msgType, uint32_t data,
+        uint32_t bufferIndex, int64_t timestamp) {
+    if (mHidlMemPoolMap.count(data) == 0) {
+        ALOGE("%s: memory pool ID %d not found", __FUNCTION__, data);
+        return hardware::Void();
+    }
+    sDataCbTimestamp(timestamp, (int32_t) msgType, mHidlMemPoolMap.at(data), bufferIndex, this);
+    return hardware::Void();
+}
+
+hardware::Return<void> CameraHardwareInterface::handleCallbackTimestamp(
+        DataCallbackMsg msgType, const hidl_handle& frameData, uint32_t data,
+        uint32_t bufferIndex, int64_t timestamp) {
+    if (mHidlMemPoolMap.count(data) == 0) {
+        ALOGE("%s: memory pool ID %d not found", __FUNCTION__, data);
+        return hardware::Void();
+    }
+    sp<CameraHeapMemory> mem(static_cast<CameraHeapMemory *>(mHidlMemPoolMap.at(data)->handle));
+    VideoNativeHandleMetadata* md = (VideoNativeHandleMetadata*)
+            mem->mBuffers[bufferIndex]->pointer();
+    md->pHandle = const_cast<native_handle_t*>(frameData.getNativeHandle());
+    sDataCbTimestamp(timestamp, (int32_t) msgType, mHidlMemPoolMap.at(data), bufferIndex, this);
+    return hardware::Void();
+}
+
+hardware::Return<void> CameraHardwareInterface::handleCallbackTimestampBatch(
+        DataCallbackMsg msgType,
+        const hardware::hidl_vec<hardware::camera::device::V1_0::HandleTimestampMessage>& messages) {
+    std::vector<android::HandleTimestampMessage> msgs;
+    msgs.reserve(messages.size());
+
+    for (const auto& hidl_msg : messages) {
+        if (mHidlMemPoolMap.count(hidl_msg.data) == 0) {
+            ALOGE("%s: memory pool ID %d not found", __FUNCTION__, hidl_msg.data);
+            return hardware::Void();
+        }
+        sp<CameraHeapMemory> mem(
+                static_cast<CameraHeapMemory *>(mHidlMemPoolMap.at(hidl_msg.data)->handle));
+
+        if (hidl_msg.bufferIndex >= mem->mNumBufs) {
+            ALOGE("%s: invalid buffer index %d, max allowed is %d", __FUNCTION__,
+                 hidl_msg.bufferIndex, mem->mNumBufs);
+            return hardware::Void();
+        }
+        VideoNativeHandleMetadata* md = (VideoNativeHandleMetadata*)
+                mem->mBuffers[hidl_msg.bufferIndex]->pointer();
+        md->pHandle = const_cast<native_handle_t*>(hidl_msg.frameData.getNativeHandle());
+
+        msgs.push_back({hidl_msg.timestamp, mem->mBuffers[hidl_msg.bufferIndex]});
+    }
+
+    mDataCbTimestampBatch((int32_t) msgType, msgs, mCbUser);
+    return hardware::Void();
+}
+
+std::pair<bool, uint64_t> CameraHardwareInterface::getBufferId(
+        ANativeWindowBuffer* anb) {
+    std::lock_guard<std::mutex> lock(mBufferIdMapLock);
+
+    buffer_handle_t& buf = anb->handle;
+    auto it = mBufferIdMap.find(buf);
+    if (it == mBufferIdMap.end()) {
+        uint64_t bufId = mNextBufferId++;
+        mBufferIdMap[buf] = bufId;
+        mReversedBufMap[bufId] = anb;
+        return std::make_pair(true, bufId);
+    } else {
+        return std::make_pair(false, it->second);
+    }
+}
+
+void CameraHardwareInterface::cleanupCirculatingBuffers() {
+    std::lock_guard<std::mutex> lock(mBufferIdMapLock);
+    mBufferIdMap.clear();
+    mReversedBufMap.clear();
+}
+
+hardware::Return<void>
+CameraHardwareInterface::dequeueBuffer(dequeueBuffer_cb _hidl_cb) {
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return hardware::Void();
+    }
+    ANativeWindowBuffer* anb;
+    int rc = native_window_dequeue_buffer_and_wait(a, &anb);
+    Status s = Status::INTERNAL_ERROR;
+    uint64_t bufferId = 0;
+    uint32_t stride = 0;
+    hidl_handle buf = nullptr;
+    if (rc == OK) {
+        s = Status::OK;
+        auto pair = getBufferId(anb);
+        buf = (pair.first) ? anb->handle : nullptr;
+        bufferId = pair.second;
+        stride = anb->stride;
+    }
+
+    _hidl_cb(s, bufferId, buf, stride);
+    return hardware::Void();
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::enqueueBuffer(uint64_t bufferId) {
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return Status::INTERNAL_ERROR;
+    }
+    if (mReversedBufMap.count(bufferId) == 0) {
+        ALOGE("%s: bufferId %" PRIu64 " not found", __FUNCTION__, bufferId);
+        return Status::ILLEGAL_ARGUMENT;
+    }
+    int rc = a->queueBuffer(a, mReversedBufMap.at(bufferId), -1);
+    if (rc == 0) {
+        return Status::OK;
+    }
+    return Status::INTERNAL_ERROR;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::cancelBuffer(uint64_t bufferId) {
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return Status::INTERNAL_ERROR;
+    }
+    if (mReversedBufMap.count(bufferId) == 0) {
+        ALOGE("%s: bufferId %" PRIu64 " not found", __FUNCTION__, bufferId);
+        return Status::ILLEGAL_ARGUMENT;
+    }
+    int rc = a->cancelBuffer(a, mReversedBufMap.at(bufferId), -1);
+    if (rc == 0) {
+        return Status::OK;
+    }
+    return Status::INTERNAL_ERROR;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setBufferCount(uint32_t count) {
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a != nullptr) {
+        // Workaround for b/27039775
+        // Previously, setting the buffer count would reset the buffer
+        // queue's flag that allows for all buffers to be dequeued on the
+        // producer side, instead of just the producer's declared max count,
+        // if no filled buffers have yet been queued by the producer.  This
+        // reset no longer happens, but some HALs depend on this behavior,
+        // so it needs to be maintained for HAL backwards compatibility.
+        // Simulate the prior behavior by disconnecting/reconnecting to the
+        // window and setting the values again.  This has the drawback of
+        // actually causing memory reallocation, which may not have happened
+        // in the past.
+        native_window_api_disconnect(a, NATIVE_WINDOW_API_CAMERA);
+        native_window_api_connect(a, NATIVE_WINDOW_API_CAMERA);
+        if (mPreviewScalingMode != NOT_SET) {
+            native_window_set_scaling_mode(a, mPreviewScalingMode);
+        }
+        if (mPreviewTransform != NOT_SET) {
+            native_window_set_buffers_transform(a, mPreviewTransform);
+        }
+        if (mPreviewWidth != NOT_SET) {
+            native_window_set_buffers_dimensions(a,
+                    mPreviewWidth, mPreviewHeight);
+            native_window_set_buffers_format(a, mPreviewFormat);
+        }
+        if (mPreviewUsage != 0) {
+            native_window_set_usage(a, mPreviewUsage);
+        }
+        if (mPreviewSwapInterval != NOT_SET) {
+            a->setSwapInterval(a, mPreviewSwapInterval);
+        }
+        if (mPreviewCrop.left != NOT_SET) {
+            native_window_set_crop(a, &(mPreviewCrop));
+        }
+    }
+    int rc = native_window_set_buffer_count(a, count);
+    if (rc == OK) {
+        cleanupCirculatingBuffers();
+        return Status::OK;
+    }
+    return Status::INTERNAL_ERROR;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setBuffersGeometry(
+        uint32_t w, uint32_t h, hardware::graphics::common::V1_0::PixelFormat format) {
+    Status s = Status::INTERNAL_ERROR;
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return s;
+    }
+    mPreviewWidth = w;
+    mPreviewHeight = h;
+    mPreviewFormat = (int) format;
+    int rc = native_window_set_buffers_dimensions(a, w, h);
+    if (rc == OK) {
+        rc = native_window_set_buffers_format(a, mPreviewFormat);
+    }
+    if (rc == OK) {
+        cleanupCirculatingBuffers();
+        s = Status::OK;
+    }
+    return s;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setCrop(int32_t left, int32_t top, int32_t right, int32_t bottom) {
+    Status s = Status::INTERNAL_ERROR;
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return s;
+    }
+    mPreviewCrop.left = left;
+    mPreviewCrop.top = top;
+    mPreviewCrop.right = right;
+    mPreviewCrop.bottom = bottom;
+    int rc = native_window_set_crop(a, &mPreviewCrop);
+    if (rc == OK) {
+        s = Status::OK;
+    }
+    return s;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setUsage(hardware::graphics::common::V1_0::BufferUsage usage) {
+    Status s = Status::INTERNAL_ERROR;
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return s;
+    }
+    mPreviewUsage = (int) usage;
+    int rc = native_window_set_usage(a, mPreviewUsage);
+    if (rc == OK) {
+        cleanupCirculatingBuffers();
+        s = Status::OK;
+    }
+    return s;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setSwapInterval(int32_t interval) {
+    Status s = Status::INTERNAL_ERROR;
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return s;
+    }
+    mPreviewSwapInterval = interval;
+    int rc = a->setSwapInterval(a, interval);
+    if (rc == OK) {
+        s = Status::OK;
+    }
+    return s;
+}
+
+hardware::Return<void>
+CameraHardwareInterface::getMinUndequeuedBufferCount(getMinUndequeuedBufferCount_cb _hidl_cb) {
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return hardware::Void();
+    }
+    int count = 0;
+    int rc = a->query(a, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &count);
+    Status s = Status::INTERNAL_ERROR;
+    if (rc == OK) {
+        s = Status::OK;
+    }
+    _hidl_cb(s, count);
+    return hardware::Void();
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setTimestamp(int64_t timestamp) {
+    Status s = Status::INTERNAL_ERROR;
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return s;
+    }
+    int rc = native_window_set_buffers_timestamp(a, timestamp);
+    if (rc == OK) {
+        s = Status::OK;
+    }
+    return s;
+}
+
+status_t CameraHardwareInterface::setPreviewWindow(const sp<ANativeWindow>& buf)
+{
+    ALOGV("%s(%s) buf %p", __FUNCTION__, mName.string(), buf.get());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mPreviewWindow = buf;
+        if (buf != nullptr) {
+            if (mPreviewScalingMode != NOT_SET) {
+                setPreviewScalingMode(mPreviewScalingMode);
+            }
+            if (mPreviewTransform != NOT_SET) {
+                setPreviewTransform(mPreviewTransform);
+            }
+        }
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->setPreviewWindow(buf.get() ? this : nullptr));
+    } else if (mDevice) {
+        if (mDevice->ops->set_preview_window) {
+            mPreviewWindow = buf;
+            if (buf != nullptr) {
+                if (mPreviewScalingMode != NOT_SET) {
+                    setPreviewScalingMode(mPreviewScalingMode);
+                }
+                if (mPreviewTransform != NOT_SET) {
+                    setPreviewTransform(mPreviewTransform);
+                }
+            }
+            mHalPreviewWindow.user = this;
+            ALOGV("%s &mHalPreviewWindow %p mHalPreviewWindow.user %p",__FUNCTION__,
+                    &mHalPreviewWindow, mHalPreviewWindow.user);
+            return mDevice->ops->set_preview_window(mDevice,
+                    buf.get() ? &mHalPreviewWindow.nw : 0);
+        }
+    }
+    return INVALID_OPERATION;
+}
+
+void CameraHardwareInterface::setCallbacks(notify_callback notify_cb,
+        data_callback data_cb,
+        data_callback_timestamp data_cb_timestamp,
+        data_callback_timestamp_batch data_cb_timestamp_batch,
+        void* user)
+{
+    mNotifyCb = notify_cb;
+    mDataCb = data_cb;
+    mDataCbTimestamp = data_cb_timestamp;
+    mDataCbTimestampBatch = data_cb_timestamp_batch;
+    mCbUser = user;
+
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+
+    if (mDevice && mDevice->ops->set_callbacks) {
+        mDevice->ops->set_callbacks(mDevice,
+                               sNotifyCb,
+                               sDataCb,
+                               sDataCbTimestamp,
+                               sGetMemory,
+                               this);
+    }
+}
+
+void CameraHardwareInterface::enableMsgType(int32_t msgType)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mHidlDevice->enableMsgType(msgType);
+    } else if (mDevice && mDevice->ops->enable_msg_type) {
+        mDevice->ops->enable_msg_type(mDevice, msgType);
+    }
+}
+
+void CameraHardwareInterface::disableMsgType(int32_t msgType)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mHidlDevice->disableMsgType(msgType);
+    } else if (mDevice && mDevice->ops->disable_msg_type) {
+        mDevice->ops->disable_msg_type(mDevice, msgType);
+    }
+}
+
+int CameraHardwareInterface::msgTypeEnabled(int32_t msgType)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return mHidlDevice->msgTypeEnabled(msgType);
+    } else if (mDevice && mDevice->ops->msg_type_enabled) {
+        return mDevice->ops->msg_type_enabled(mDevice, msgType);
+    }
+    return false;
+}
+
+status_t CameraHardwareInterface::startPreview()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->startPreview());
+    } else if (mDevice && mDevice->ops->start_preview) {
+        return mDevice->ops->start_preview(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+void CameraHardwareInterface::stopPreview()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mHidlDevice->stopPreview();
+    } else if (mDevice && mDevice->ops->stop_preview) {
+        mDevice->ops->stop_preview(mDevice);
+    }
+}
+
+int CameraHardwareInterface::previewEnabled()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return mHidlDevice->previewEnabled();
+    } else if (mDevice && mDevice->ops->preview_enabled) {
+        return mDevice->ops->preview_enabled(mDevice);
+    }
+    return false;
+}
+
+status_t CameraHardwareInterface::storeMetaDataInBuffers(int enable)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->storeMetaDataInBuffers(enable));
+    } else if (mDevice && mDevice->ops->store_meta_data_in_buffers) {
+        return mDevice->ops->store_meta_data_in_buffers(mDevice, enable);
+    }
+    return enable ? INVALID_OPERATION: OK;
+}
+
+status_t CameraHardwareInterface::startRecording()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->startRecording());
+    } else if (mDevice && mDevice->ops->start_recording) {
+        return mDevice->ops->start_recording(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+/**
+ * Stop a previously started recording.
+ */
+void CameraHardwareInterface::stopRecording()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mHidlDevice->stopRecording();
+    } else if (mDevice && mDevice->ops->stop_recording) {
+        mDevice->ops->stop_recording(mDevice);
+    }
+}
+
+/**
+ * Returns true if recording is enabled.
+ */
+int CameraHardwareInterface::recordingEnabled()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return mHidlDevice->recordingEnabled();
+    } else if (mDevice && mDevice->ops->recording_enabled) {
+        return mDevice->ops->recording_enabled(mDevice);
+    }
+    return false;
+}
+
+void CameraHardwareInterface::releaseRecordingFrame(const sp<IMemory>& mem)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    ssize_t offset;
+    size_t size;
+    sp<IMemoryHeap> heap = mem->getMemory(&offset, &size);
+    int heapId = heap->getHeapID();
+    int bufferIndex = offset / size;
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        if (size == sizeof(VideoNativeHandleMetadata)) {
+            VideoNativeHandleMetadata* md = (VideoNativeHandleMetadata*) mem->pointer();
+            // Caching the handle here because md->pHandle will be subject to HAL's edit
+            native_handle_t* nh = md->pHandle;
+            hidl_handle frame = nh;
+            mHidlDevice->releaseRecordingFrameHandle(heapId, bufferIndex, frame);
+            native_handle_close(nh);
+            native_handle_delete(nh);
+        } else {
+            mHidlDevice->releaseRecordingFrame(heapId, bufferIndex);
+        }
+    } else if (mDevice && mDevice->ops->release_recording_frame) {
+        void *data = ((uint8_t *)heap->base()) + offset;
+        return mDevice->ops->release_recording_frame(mDevice, data);
+    }
+}
+
+void CameraHardwareInterface::releaseRecordingFrameBatch(const std::vector<sp<IMemory>>& frames)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    size_t n = frames.size();
+    std::vector<VideoFrameMessage> msgs;
+    msgs.reserve(n);
+    for (auto& mem : frames) {
+        if (CC_LIKELY(mHidlDevice != nullptr)) {
+            ssize_t offset;
+            size_t size;
+            sp<IMemoryHeap> heap = mem->getMemory(&offset, &size);
+            if (size == sizeof(VideoNativeHandleMetadata)) {
+                uint32_t heapId = heap->getHeapID();
+                uint32_t bufferIndex = offset / size;
+                VideoNativeHandleMetadata* md = (VideoNativeHandleMetadata*) mem->pointer();
+                // Caching the handle here because md->pHandle will be subject to HAL's edit
+                native_handle_t* nh = md->pHandle;
+                VideoFrameMessage msg;
+                msgs.push_back({nh, heapId, bufferIndex});
+            } else {
+                ALOGE("%s only supports VideoNativeHandleMetadata mode", __FUNCTION__);
+                return;
+            }
+        } else {
+            ALOGE("Non HIDL mode do not support %s", __FUNCTION__);
+            return;
+        }
+    }
+
+    mHidlDevice->releaseRecordingFrameHandleBatch(msgs);
+
+    for (auto& msg : msgs) {
+        native_handle_t* nh = const_cast<native_handle_t*>(msg.frameData.getNativeHandle());
+        native_handle_close(nh);
+        native_handle_delete(nh);
+    }
+}
+
+status_t CameraHardwareInterface::autoFocus()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->autoFocus());
+    } else if (mDevice && mDevice->ops->auto_focus) {
+        return mDevice->ops->auto_focus(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+status_t CameraHardwareInterface::cancelAutoFocus()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->cancelAutoFocus());
+    } else if (mDevice && mDevice->ops->cancel_auto_focus) {
+        return mDevice->ops->cancel_auto_focus(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+status_t CameraHardwareInterface::takePicture()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->takePicture());
+    } else if (mDevice && mDevice->ops->take_picture) {
+        return mDevice->ops->take_picture(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+status_t CameraHardwareInterface::cancelPicture()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->cancelPicture());
+    } else if (mDevice && mDevice->ops->cancel_picture) {
+        return mDevice->ops->cancel_picture(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+status_t CameraHardwareInterface::setParameters(const CameraParameters &params)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->setParameters(params.flatten().string()));
+    } else if (mDevice && mDevice->ops->set_parameters) {
+        return mDevice->ops->set_parameters(mDevice, params.flatten().string());
+    }
+    return INVALID_OPERATION;
+}
+
+CameraParameters CameraHardwareInterface::getParameters() const
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    CameraParameters parms;
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        hardware::hidl_string outParam;
+        mHidlDevice->getParameters(
+                [&outParam](const auto& outStr) {
+                    outParam = outStr;
+                });
+        String8 tmp(outParam.c_str());
+        parms.unflatten(tmp);
+    } else if (mDevice && mDevice->ops->get_parameters) {
+        char *temp = mDevice->ops->get_parameters(mDevice);
+        String8 str_parms(temp);
+        if (mDevice->ops->put_parameters)
+            mDevice->ops->put_parameters(mDevice, temp);
+        else
+            free(temp);
+        parms.unflatten(str_parms);
+    }
+    return parms;
+}
+
+status_t CameraHardwareInterface::sendCommand(int32_t cmd, int32_t arg1, int32_t arg2)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->sendCommand((CommandType) cmd, arg1, arg2));
+    } else if (mDevice && mDevice->ops->send_command) {
+        return mDevice->ops->send_command(mDevice, cmd, arg1, arg2);
+    }
+    return INVALID_OPERATION;
+}
+
+/**
+ * Release the hardware resources owned by this object.  Note that this is
+ * *not* done in the destructor.
+ */
+void CameraHardwareInterface::release() {
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mHidlDevice->close();
+        mHidlDevice.clear();
+    } else if (mDevice && mDevice->ops->release) {
+        mDevice->ops->release(mDevice);
+    }
+}
+
+/**
+ * Dump state of the camera hardware
+ */
+status_t CameraHardwareInterface::dump(int fd, const Vector<String16>& /*args*/) const
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        native_handle_t* handle = native_handle_create(1,0);
+        handle->data[0] = fd;
+        Status s = mHidlDevice->dumpState(handle);
+        native_handle_delete(handle);
+        return CameraProviderManager::mapToStatusT(s);
+    } else if (mDevice && mDevice->ops->dump) {
+        return mDevice->ops->dump(mDevice, fd);
+    }
+    return OK; // It's fine if the HAL doesn't implement dump()
+}
+
+/**
+ * Methods for legacy (non-HIDL) path follows
+ */
+void CameraHardwareInterface::sNotifyCb(int32_t msg_type, int32_t ext1,
+                        int32_t ext2, void *user)
+{
+    ALOGV("%s", __FUNCTION__);
+    CameraHardwareInterface *object =
+            static_cast<CameraHardwareInterface *>(user);
+    object->mNotifyCb(msg_type, ext1, ext2, object->mCbUser);
+}
+
+void CameraHardwareInterface::sDataCb(int32_t msg_type,
+                      const camera_memory_t *data, unsigned int index,
+                      camera_frame_metadata_t *metadata,
+                      void *user)
+{
+    ALOGV("%s", __FUNCTION__);
+    CameraHardwareInterface *object =
+            static_cast<CameraHardwareInterface *>(user);
+    sp<CameraHeapMemory> mem(static_cast<CameraHeapMemory *>(data->handle));
+    if (index >= mem->mNumBufs) {
+        ALOGE("%s: invalid buffer index %d, max allowed is %d", __FUNCTION__,
+             index, mem->mNumBufs);
+        return;
+    }
+    object->mDataCb(msg_type, mem->mBuffers[index], metadata, object->mCbUser);
+}
+
+void CameraHardwareInterface::sDataCbTimestamp(nsecs_t timestamp, int32_t msg_type,
+                         const camera_memory_t *data, unsigned index,
+                         void *user)
+{
+    ALOGV("%s", __FUNCTION__);
+    CameraHardwareInterface *object =
+            static_cast<CameraHardwareInterface *>(user);
+    // Start refcounting the heap object from here on.  When the clients
+    // drop all references, it will be destroyed (as well as the enclosed
+    // MemoryHeapBase.
+    sp<CameraHeapMemory> mem(static_cast<CameraHeapMemory *>(data->handle));
+    if (index >= mem->mNumBufs) {
+        ALOGE("%s: invalid buffer index %d, max allowed is %d", __FUNCTION__,
+             index, mem->mNumBufs);
+        return;
+    }
+    object->mDataCbTimestamp(timestamp, msg_type, mem->mBuffers[index], object->mCbUser);
+}
+
+camera_memory_t* CameraHardwareInterface::sGetMemory(
+        int fd, size_t buf_size, uint_t num_bufs,
+        void *user __attribute__((unused)))
+{
+    CameraHeapMemory *mem;
+    if (fd < 0) {
+        mem = new CameraHeapMemory(buf_size, num_bufs);
+    } else {
+        mem = new CameraHeapMemory(fd, buf_size, num_bufs);
+    }
+    mem->incStrong(mem);
+    return &mem->handle;
+}
+
+void CameraHardwareInterface::sPutMemory(camera_memory_t *data)
+{
+    if (!data) {
+        return;
+    }
+
+    CameraHeapMemory *mem = static_cast<CameraHeapMemory *>(data->handle);
+    mem->decStrong(mem);
+}
+
+ANativeWindow* CameraHardwareInterface::sToAnw(void *user)
+{
+    CameraHardwareInterface *object =
+            reinterpret_cast<CameraHardwareInterface *>(user);
+    return object->mPreviewWindow.get();
+}
+#define anw(n) sToAnw(((struct camera_preview_window *)(n))->user)
+#define hwi(n) reinterpret_cast<CameraHardwareInterface *>(\
+    ((struct camera_preview_window *)(n))->user)
+
+int CameraHardwareInterface::sDequeueBuffer(struct preview_stream_ops* w,
+                            buffer_handle_t** buffer, int *stride)
+{
+    int rc;
+    ANativeWindow *a = anw(w);
+    ANativeWindowBuffer* anb;
+    rc = native_window_dequeue_buffer_and_wait(a, &anb);
+    if (rc == OK) {
+        *buffer = &anb->handle;
+        *stride = anb->stride;
+    }
+    return rc;
+}
+
+#ifndef container_of
+#define container_of(ptr, type, member) ({                      \
+    const __typeof__(((type *) 0)->member) *__mptr = (ptr);     \
+    (type *) ((char *) __mptr - (char *)(&((type *)0)->member)); })
+#endif
+
+int CameraHardwareInterface::sLockBuffer(struct preview_stream_ops* w,
+                  buffer_handle_t* /*buffer*/)
+{
+    ANativeWindow *a = anw(w);
+    (void)a;
+    return 0;
+}
+
+int CameraHardwareInterface::sEnqueueBuffer(struct preview_stream_ops* w,
+                  buffer_handle_t* buffer)
+{
+    ANativeWindow *a = anw(w);
+    return a->queueBuffer(a,
+              container_of(buffer, ANativeWindowBuffer, handle), -1);
+}
+
+int CameraHardwareInterface::sCancelBuffer(struct preview_stream_ops* w,
+                  buffer_handle_t* buffer)
+{
+    ANativeWindow *a = anw(w);
+    return a->cancelBuffer(a,
+              container_of(buffer, ANativeWindowBuffer, handle), -1);
+}
+
+int CameraHardwareInterface::sSetBufferCount(struct preview_stream_ops* w, int count)
+{
+    ANativeWindow *a = anw(w);
+
+    if (a != nullptr) {
+        // Workaround for b/27039775
+        // Previously, setting the buffer count would reset the buffer
+        // queue's flag that allows for all buffers to be dequeued on the
+        // producer side, instead of just the producer's declared max count,
+        // if no filled buffers have yet been queued by the producer.  This
+        // reset no longer happens, but some HALs depend on this behavior,
+        // so it needs to be maintained for HAL backwards compatibility.
+        // Simulate the prior behavior by disconnecting/reconnecting to the
+        // window and setting the values again.  This has the drawback of
+        // actually causing memory reallocation, which may not have happened
+        // in the past.
+        CameraHardwareInterface *hw = hwi(w);
+        native_window_api_disconnect(a, NATIVE_WINDOW_API_CAMERA);
+        native_window_api_connect(a, NATIVE_WINDOW_API_CAMERA);
+        if (hw->mPreviewScalingMode != NOT_SET) {
+            native_window_set_scaling_mode(a, hw->mPreviewScalingMode);
+        }
+        if (hw->mPreviewTransform != NOT_SET) {
+            native_window_set_buffers_transform(a, hw->mPreviewTransform);
+        }
+        if (hw->mPreviewWidth != NOT_SET) {
+            native_window_set_buffers_dimensions(a,
+                    hw->mPreviewWidth, hw->mPreviewHeight);
+            native_window_set_buffers_format(a, hw->mPreviewFormat);
+        }
+        if (hw->mPreviewUsage != 0) {
+            native_window_set_usage(a, hw->mPreviewUsage);
+        }
+        if (hw->mPreviewSwapInterval != NOT_SET) {
+            a->setSwapInterval(a, hw->mPreviewSwapInterval);
+        }
+        if (hw->mPreviewCrop.left != NOT_SET) {
+            native_window_set_crop(a, &(hw->mPreviewCrop));
+        }
+    }
+
+    return native_window_set_buffer_count(a, count);
+}
+
+int CameraHardwareInterface::sSetBuffersGeometry(struct preview_stream_ops* w,
+                  int width, int height, int format)
+{
+    int rc;
+    ANativeWindow *a = anw(w);
+    CameraHardwareInterface *hw = hwi(w);
+    hw->mPreviewWidth = width;
+    hw->mPreviewHeight = height;
+    hw->mPreviewFormat = format;
+    rc = native_window_set_buffers_dimensions(a, width, height);
+    if (rc == OK) {
+        rc = native_window_set_buffers_format(a, format);
+    }
+    return rc;
+}
+
+int CameraHardwareInterface::sSetCrop(struct preview_stream_ops *w,
+                  int left, int top, int right, int bottom)
+{
+    ANativeWindow *a = anw(w);
+    CameraHardwareInterface *hw = hwi(w);
+    hw->mPreviewCrop.left = left;
+    hw->mPreviewCrop.top = top;
+    hw->mPreviewCrop.right = right;
+    hw->mPreviewCrop.bottom = bottom;
+    return native_window_set_crop(a, &(hw->mPreviewCrop));
+}
+
+int CameraHardwareInterface::sSetTimestamp(struct preview_stream_ops *w,
+                           int64_t timestamp) {
+    ANativeWindow *a = anw(w);
+    return native_window_set_buffers_timestamp(a, timestamp);
+}
+
+int CameraHardwareInterface::sSetUsage(struct preview_stream_ops* w, int usage)
+{
+    ANativeWindow *a = anw(w);
+    CameraHardwareInterface *hw = hwi(w);
+    hw->mPreviewUsage = usage;
+    return native_window_set_usage(a, usage);
+}
+
+int CameraHardwareInterface::sSetSwapInterval(struct preview_stream_ops *w, int interval)
+{
+    ANativeWindow *a = anw(w);
+    CameraHardwareInterface *hw = hwi(w);
+    hw->mPreviewSwapInterval = interval;
+    return a->setSwapInterval(a, interval);
+}
+
+int CameraHardwareInterface::sGetMinUndequeuedBufferCount(
+                  const struct preview_stream_ops *w,
+                  int *count)
+{
+    ANativeWindow *a = anw(w);
+    return a->query(a, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, count);
+}
+
+void CameraHardwareInterface::initHalPreviewWindow()
+{
+    mHalPreviewWindow.nw.cancel_buffer = sCancelBuffer;
+    mHalPreviewWindow.nw.lock_buffer = sLockBuffer;
+    mHalPreviewWindow.nw.dequeue_buffer = sDequeueBuffer;
+    mHalPreviewWindow.nw.enqueue_buffer = sEnqueueBuffer;
+    mHalPreviewWindow.nw.set_buffer_count = sSetBufferCount;
+    mHalPreviewWindow.nw.set_buffers_geometry = sSetBuffersGeometry;
+    mHalPreviewWindow.nw.set_crop = sSetCrop;
+    mHalPreviewWindow.nw.set_timestamp = sSetTimestamp;
+    mHalPreviewWindow.nw.set_usage = sSetUsage;
+    mHalPreviewWindow.nw.set_swap_interval = sSetSwapInterval;
+
+    mHalPreviewWindow.nw.get_min_undequeued_buffer_count =
+            sGetMinUndequeuedBufferCount;
+}
+
+}; // namespace android
diff --git a/services/camera/libcameraservice/device1/CameraHardwareInterface.h b/services/camera/libcameraservice/device1/CameraHardwareInterface.h
index bce0762..1c38d00 100644
--- a/services/camera/libcameraservice/device1/CameraHardwareInterface.h
+++ b/services/camera/libcameraservice/device1/CameraHardwareInterface.h
@@ -17,6 +17,7 @@
 #ifndef ANDROID_HARDWARE_CAMERA_HARDWARE_INTERFACE_H
 #define ANDROID_HARDWARE_CAMERA_HARDWARE_INTERFACE_H
 
+#include <unordered_map>
 #include <binder/IMemory.h>
 #include <binder/MemoryBase.h>
 #include <binder/MemoryHeapBase.h>
@@ -27,6 +28,8 @@
 #include <system/window.h>
 #include <hardware/camera.h>
 
+#include <common/CameraProviderManager.h>
+
 namespace android {
 
 typedef void (*notify_callback)(int32_t msgType,
@@ -44,6 +47,15 @@
                             const sp<IMemory> &dataPtr,
                             void *user);
 
+struct HandleTimestampMessage {
+    nsecs_t timestamp;
+    const sp<IMemory> dataPtr;
+};
+
+typedef void (*data_callback_timestamp_batch)(
+        int32_t msgType,
+        const std::vector<HandleTimestampMessage>&, void* user);
+
 /**
  * CameraHardwareInterface.h defines the interface to the
  * camera hardware abstraction layer, used for setting and getting
@@ -71,10 +83,15 @@
  * provided in a data callback must be copied if it's needed after returning.
  */
 
-class CameraHardwareInterface : public virtual RefBase {
+class CameraHardwareInterface :
+        public virtual RefBase,
+        public virtual hardware::camera::device::V1_0::ICameraDeviceCallback,
+        public virtual hardware::camera::device::V1_0::ICameraDevicePreviewCallback {
+
 public:
-    CameraHardwareInterface(const char *name):
+    explicit CameraHardwareInterface(const char *name):
             mDevice(nullptr),
+            mHidlDevice(nullptr),
             mName(name),
             mPreviewScalingMode(NOT_SET),
             mPreviewTransform(NOT_SET),
@@ -87,109 +104,23 @@
     {
     }
 
-    ~CameraHardwareInterface()
-    {
-        ALOGI("Destroying camera %s", mName.string());
-        if(mDevice) {
-            int rc = mDevice->common.close(&mDevice->common);
-            if (rc != OK)
-                ALOGE("Could not close camera %s: %d", mName.string(), rc);
-        }
-    }
+    ~CameraHardwareInterface();
 
-    status_t initialize(CameraModule *module)
-    {
-        ALOGI("Opening camera %s", mName.string());
-        camera_info info;
-        status_t res = module->getCameraInfo(atoi(mName.string()), &info);
-        if (res != OK) {
-            return res;
-        }
-
-        int rc = OK;
-        if (module->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_3 &&
-            info.device_version > CAMERA_DEVICE_API_VERSION_1_0) {
-            // Open higher version camera device as HAL1.0 device.
-            rc = module->openLegacy(mName.string(),
-                                     CAMERA_DEVICE_API_VERSION_1_0,
-                                     (hw_device_t **)&mDevice);
-        } else {
-            rc = module->open(mName.string(), (hw_device_t **)&mDevice);
-        }
-        if (rc != OK) {
-            ALOGE("Could not open camera %s: %d", mName.string(), rc);
-            return rc;
-        }
-        initHalPreviewWindow();
-        return rc;
-    }
+    status_t initialize(sp<CameraProviderManager> manager);
 
     /** Set the ANativeWindow to which preview frames are sent */
-    status_t setPreviewWindow(const sp<ANativeWindow>& buf)
-    {
-        ALOGV("%s(%s) buf %p", __FUNCTION__, mName.string(), buf.get());
-        if (mDevice->ops->set_preview_window) {
-            mPreviewWindow = buf;
-            if (buf != nullptr) {
-                if (mPreviewScalingMode != NOT_SET) {
-                    setPreviewScalingMode(mPreviewScalingMode);
-                }
-                if (mPreviewTransform != NOT_SET) {
-                    setPreviewTransform(mPreviewTransform);
-                }
-            }
-            mHalPreviewWindow.user = this;
-            ALOGV("%s &mHalPreviewWindow %p mHalPreviewWindow.user %p", __FUNCTION__,
-                    &mHalPreviewWindow, mHalPreviewWindow.user);
-            return mDevice->ops->set_preview_window(mDevice,
-                    buf.get() ? &mHalPreviewWindow.nw : 0);
-        }
-        return INVALID_OPERATION;
-    }
+    status_t setPreviewWindow(const sp<ANativeWindow>& buf);
 
-    status_t setPreviewScalingMode(int scalingMode)
-    {
-        int rc = OK;
-        mPreviewScalingMode = scalingMode;
-        if (mPreviewWindow != nullptr) {
-            rc = native_window_set_scaling_mode(mPreviewWindow.get(),
-                    scalingMode);
-        }
-        return rc;
-    }
+    status_t setPreviewScalingMode(int scalingMode);
 
-    status_t setPreviewTransform(int transform) {
-        int rc = OK;
-        mPreviewTransform = transform;
-        if (mPreviewWindow != nullptr) {
-            rc = native_window_set_buffers_transform(mPreviewWindow.get(),
-                    mPreviewTransform);
-        }
-        return rc;
-    }
+    status_t setPreviewTransform(int transform);
 
     /** Set the notification and data callbacks */
     void setCallbacks(notify_callback notify_cb,
                       data_callback data_cb,
                       data_callback_timestamp data_cb_timestamp,
-                      void* user)
-    {
-        mNotifyCb = notify_cb;
-        mDataCb = data_cb;
-        mDataCbTimestamp = data_cb_timestamp;
-        mCbUser = user;
-
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-
-        if (mDevice->ops->set_callbacks) {
-            mDevice->ops->set_callbacks(mDevice,
-                                   __notify_cb,
-                                   __data_cb,
-                                   __data_cb_timestamp,
-                                   __get_memory,
-                                   this);
-        }
-    }
+                      data_callback_timestamp_batch data_cb_timestamp_batch,
+                      void* user);
 
     /**
      * The following three functions all take a msgtype,
@@ -200,12 +131,7 @@
     /**
      * Enable a message, or set of messages.
      */
-    void enableMsgType(int32_t msgType)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->enable_msg_type)
-            mDevice->ops->enable_msg_type(mDevice, msgType);
-    }
+    void enableMsgType(int32_t msgType);
 
     /**
      * Disable a message, or a set of messages.
@@ -217,57 +143,29 @@
      * modify/access any video recording frame after calling
      * disableMsgType(CAMERA_MSG_VIDEO_FRAME).
      */
-    void disableMsgType(int32_t msgType)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->disable_msg_type)
-            mDevice->ops->disable_msg_type(mDevice, msgType);
-    }
+    void disableMsgType(int32_t msgType);
 
     /**
      * Query whether a message, or a set of messages, is enabled.
      * Note that this is operates as an AND, if any of the messages
      * queried are off, this will return false.
      */
-    int msgTypeEnabled(int32_t msgType)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->msg_type_enabled)
-            return mDevice->ops->msg_type_enabled(mDevice, msgType);
-        return false;
-    }
+    int msgTypeEnabled(int32_t msgType);
 
     /**
      * Start preview mode.
      */
-    status_t startPreview()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->start_preview)
-            return mDevice->ops->start_preview(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t startPreview();
 
     /**
      * Stop a previously started preview.
      */
-    void stopPreview()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->stop_preview)
-            mDevice->ops->stop_preview(mDevice);
-    }
+    void stopPreview();
 
     /**
      * Returns true if preview is enabled.
      */
-    int previewEnabled()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->preview_enabled)
-            return mDevice->ops->preview_enabled(mDevice);
-        return false;
-    }
+    int previewEnabled();
 
     /**
      * Request the camera hal to store meta data or real YUV data in
@@ -301,13 +199,7 @@
      * @return OK on success.
      */
 
-    status_t storeMetaDataInBuffers(int enable)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->store_meta_data_in_buffers)
-            return mDevice->ops->store_meta_data_in_buffers(mDevice, enable);
-        return enable ? INVALID_OPERATION: OK;
-    }
+    status_t storeMetaDataInBuffers(int enable);
 
     /**
      * Start record mode. When a record image is available a CAMERA_MSG_VIDEO_FRAME
@@ -318,34 +210,17 @@
      * to manage the life-cycle of the video recording frames, and the client must
      * not modify/access any video recording frames.
      */
-    status_t startRecording()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->start_recording)
-            return mDevice->ops->start_recording(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t startRecording();
 
     /**
      * Stop a previously started recording.
      */
-    void stopRecording()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->stop_recording)
-            mDevice->ops->stop_recording(mDevice);
-    }
+    void stopRecording();
 
     /**
      * Returns true if recording is enabled.
      */
-    int recordingEnabled()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->recording_enabled)
-            return mDevice->ops->recording_enabled(mDevice);
-        return false;
-    }
+    int recordingEnabled();
 
     /**
      * Release a record frame previously returned by CAMERA_MSG_VIDEO_FRAME.
@@ -357,30 +232,28 @@
      * responsibility of managing the life-cycle of the video recording
      * frames.
      */
-    void releaseRecordingFrame(const sp<IMemory>& mem)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->release_recording_frame) {
-            ssize_t offset;
-            size_t size;
-            sp<IMemoryHeap> heap = mem->getMemory(&offset, &size);
-            void *data = ((uint8_t *)heap->base()) + offset;
-            return mDevice->ops->release_recording_frame(mDevice, data);
-        }
-    }
+    void releaseRecordingFrame(const sp<IMemory>& mem);
+
+    /**
+     * Release a batch of recording frames previously returned by
+     * CAMERA_MSG_VIDEO_FRAME. This method only supports frames that are
+     * stored as VideoNativeHandleMetadata.
+     *
+     * It is camera hal client's responsibility to release video recording
+     * frames sent out by the camera hal before the camera hal receives
+     * a call to disableMsgType(CAMERA_MSG_VIDEO_FRAME). After it receives
+     * the call to disableMsgType(CAMERA_MSG_VIDEO_FRAME), it is camera hal's
+     * responsibility of managing the life-cycle of the video recording
+     * frames.
+     */
+    void releaseRecordingFrameBatch(const std::vector<sp<IMemory>>& frames);
 
     /**
      * Start auto focus, the notification callback routine is called
      * with CAMERA_MSG_FOCUS once when focusing is complete. autoFocus()
      * will be called again if another auto focus is needed.
      */
-    status_t autoFocus()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->auto_focus)
-            return mDevice->ops->auto_focus(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t autoFocus();
 
     /**
      * Cancels auto-focus function. If the auto-focus is still in progress,
@@ -388,151 +261,63 @@
      * or not, this function will return the focus position to the default.
      * If the camera does not support auto-focus, this is a no-op.
      */
-    status_t cancelAutoFocus()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->cancel_auto_focus)
-            return mDevice->ops->cancel_auto_focus(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t cancelAutoFocus();
 
     /**
      * Take a picture.
      */
-    status_t takePicture()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->take_picture)
-            return mDevice->ops->take_picture(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t takePicture();
 
     /**
      * Cancel a picture that was started with takePicture.  Calling this
      * method when no picture is being taken is a no-op.
      */
-    status_t cancelPicture()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->cancel_picture)
-            return mDevice->ops->cancel_picture(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t cancelPicture();
 
     /**
      * Set the camera parameters. This returns BAD_VALUE if any parameter is
      * invalid or not supported. */
-    status_t setParameters(const CameraParameters &params)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->set_parameters)
-            return mDevice->ops->set_parameters(mDevice,
-                                               params.flatten().string());
-        return INVALID_OPERATION;
-    }
+    status_t setParameters(const CameraParameters &params);
 
     /** Return the camera parameters. */
-    CameraParameters getParameters() const
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        CameraParameters parms;
-        if (mDevice->ops->get_parameters) {
-            char *temp = mDevice->ops->get_parameters(mDevice);
-            String8 str_parms(temp);
-            if (mDevice->ops->put_parameters)
-                mDevice->ops->put_parameters(mDevice, temp);
-            else
-                free(temp);
-            parms.unflatten(str_parms);
-        }
-        return parms;
-    }
+    CameraParameters getParameters() const;
 
     /**
      * Send command to camera driver.
      */
-    status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->send_command)
-            return mDevice->ops->send_command(mDevice, cmd, arg1, arg2);
-        return INVALID_OPERATION;
-    }
+    status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
 
     /**
      * Release the hardware resources owned by this object.  Note that this is
      * *not* done in the destructor.
      */
-    void release() {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->release)
-            mDevice->ops->release(mDevice);
-    }
+    void release();
 
     /**
      * Dump state of the camera hardware
      */
-    status_t dump(int fd, const Vector<String16>& /*args*/) const
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->dump)
-            return mDevice->ops->dump(mDevice, fd);
-        return OK; // It's fine if the HAL doesn't implement dump()
-    }
+    status_t dump(int fd, const Vector<String16>& /*args*/) const;
 
 private:
     camera_device_t *mDevice;
+    sp<hardware::camera::device::V1_0::ICameraDevice> mHidlDevice;
     String8 mName;
 
-    static void __notify_cb(int32_t msg_type, int32_t ext1,
-                            int32_t ext2, void *user)
-    {
-        ALOGV("%s", __FUNCTION__);
-        CameraHardwareInterface *__this =
-                static_cast<CameraHardwareInterface *>(user);
-        __this->mNotifyCb(msg_type, ext1, ext2, __this->mCbUser);
-    }
+    static void sNotifyCb(int32_t msg_type, int32_t ext1,
+                            int32_t ext2, void *user);
 
-    static void __data_cb(int32_t msg_type,
+    static void sDataCb(int32_t msg_type,
                           const camera_memory_t *data, unsigned int index,
                           camera_frame_metadata_t *metadata,
-                          void *user)
-    {
-        ALOGV("%s", __FUNCTION__);
-        CameraHardwareInterface *__this =
-                static_cast<CameraHardwareInterface *>(user);
-        sp<CameraHeapMemory> mem(static_cast<CameraHeapMemory *>(data->handle));
-        if (index >= mem->mNumBufs) {
-            ALOGE("%s: invalid buffer index %d, max allowed is %d", __FUNCTION__,
-                 index, mem->mNumBufs);
-            return;
-        }
-        __this->mDataCb(msg_type, mem->mBuffers[index], metadata, __this->mCbUser);
-    }
+                          void *user);
 
-    static void __data_cb_timestamp(nsecs_t timestamp, int32_t msg_type,
+    static void sDataCbTimestamp(nsecs_t timestamp, int32_t msg_type,
                              const camera_memory_t *data, unsigned index,
-                             void *user)
-    {
-        ALOGV("%s", __FUNCTION__);
-        CameraHardwareInterface *__this =
-                static_cast<CameraHardwareInterface *>(user);
-        // Start refcounting the heap object from here on.  When the clients
-        // drop all references, it will be destroyed (as well as the enclosed
-        // MemoryHeapBase.
-        sp<CameraHeapMemory> mem(static_cast<CameraHeapMemory *>(data->handle));
-        if (index >= mem->mNumBufs) {
-            ALOGE("%s: invalid buffer index %d, max allowed is %d", __FUNCTION__,
-                 index, mem->mNumBufs);
-            return;
-        }
-        __this->mDataCbTimestamp(timestamp, msg_type, mem->mBuffers[index], __this->mCbUser);
-    }
+                             void *user);
 
     // This is a utility class that combines a MemoryHeapBase and a MemoryBase
     // in one.  Since we tend to use them in a one-to-one relationship, this is
     // handy.
-
     class CameraHeapMemory : public RefBase {
     public:
         CameraHeapMemory(int fd, size_t buf_size, uint_t num_buffers = 1) :
@@ -543,9 +328,9 @@
             commonInitialization();
         }
 
-        CameraHeapMemory(size_t buf_size, uint_t num_buffers = 1) :
-                         mBufSize(buf_size),
-                         mNumBufs(num_buffers)
+        explicit CameraHeapMemory(size_t buf_size, uint_t num_buffers = 1) :
+                                  mBufSize(buf_size),
+                                  mNumBufs(num_buffers)
         {
             mHeap = new MemoryHeapBase(buf_size * num_buffers);
             commonInitialization();
@@ -563,7 +348,7 @@
                                              i * mBufSize,
                                              mBufSize);
 
-            handle.release = __put_memory;
+            handle.release = sPutMemory;
         }
 
         virtual ~CameraHeapMemory()
@@ -579,199 +364,98 @@
         camera_memory_t handle;
     };
 
-    static camera_memory_t* __get_memory(int fd, size_t buf_size, uint_t num_bufs,
-                                         void *user __attribute__((unused)))
-    {
-        CameraHeapMemory *mem;
-        if (fd < 0)
-            mem = new CameraHeapMemory(buf_size, num_bufs);
-        else
-            mem = new CameraHeapMemory(fd, buf_size, num_bufs);
-        mem->incStrong(mem);
-        return &mem->handle;
-    }
+    static camera_memory_t* sGetMemory(int fd, size_t buf_size, uint_t num_bufs,
+                                         void *user __attribute__((unused)));
 
-    static void __put_memory(camera_memory_t *data)
-    {
-        if (!data)
-            return;
+    static void sPutMemory(camera_memory_t *data);
 
-        CameraHeapMemory *mem = static_cast<CameraHeapMemory *>(data->handle);
-        mem->decStrong(mem);
-    }
+    static ANativeWindow *sToAnw(void *user);
 
-    static ANativeWindow *__to_anw(void *user)
-    {
-        CameraHardwareInterface *__this =
-                reinterpret_cast<CameraHardwareInterface *>(user);
-        return __this->mPreviewWindow.get();
-    }
-#define anw(n) __to_anw(((struct camera_preview_window *)n)->user)
-#define hwi(n) reinterpret_cast<CameraHardwareInterface *>(\
-        ((struct camera_preview_window *)n)->user)
+    static int sDequeueBuffer(struct preview_stream_ops* w,
+                                buffer_handle_t** buffer, int *stride);
 
-    static int __dequeue_buffer(struct preview_stream_ops* w,
-                                buffer_handle_t** buffer, int *stride)
-    {
-        int rc;
-        ANativeWindow *a = anw(w);
-        ANativeWindowBuffer* anb;
-        rc = native_window_dequeue_buffer_and_wait(a, &anb);
-        if (!rc) {
-            *buffer = &anb->handle;
-            *stride = anb->stride;
-        }
-        return rc;
-    }
+    static int sLockBuffer(struct preview_stream_ops* w,
+                      buffer_handle_t* /*buffer*/);
 
-#ifndef container_of
-#define container_of(ptr, type, member) ({                      \
-        const __typeof__(((type *) 0)->member) *__mptr = (ptr);     \
-        (type *) ((char *) __mptr - (char *)(&((type *)0)->member)); })
-#endif
+    static int sEnqueueBuffer(struct preview_stream_ops* w,
+                      buffer_handle_t* buffer);
 
-    static int __lock_buffer(struct preview_stream_ops* w,
-                      buffer_handle_t* /*buffer*/)
-    {
-        ANativeWindow *a = anw(w);
-        (void)a;
-        return 0;
-    }
+    static int sCancelBuffer(struct preview_stream_ops* w,
+                      buffer_handle_t* buffer);
 
-    static int __enqueue_buffer(struct preview_stream_ops* w,
-                      buffer_handle_t* buffer)
-    {
-        ANativeWindow *a = anw(w);
-        return a->queueBuffer(a,
-                  container_of(buffer, ANativeWindowBuffer, handle), -1);
-    }
+    static int sSetBufferCount(struct preview_stream_ops* w, int count);
 
-    static int __cancel_buffer(struct preview_stream_ops* w,
-                      buffer_handle_t* buffer)
-    {
-        ANativeWindow *a = anw(w);
-        return a->cancelBuffer(a,
-                  container_of(buffer, ANativeWindowBuffer, handle), -1);
-    }
+    static int sSetBuffersGeometry(struct preview_stream_ops* w,
+                      int width, int height, int format);
 
-    static int __set_buffer_count(struct preview_stream_ops* w, int count)
-    {
-        ANativeWindow *a = anw(w);
+    static int sSetCrop(struct preview_stream_ops *w,
+                      int left, int top, int right, int bottom);
 
-        if (a != nullptr) {
-            // Workaround for b/27039775
-            // Previously, setting the buffer count would reset the buffer
-            // queue's flag that allows for all buffers to be dequeued on the
-            // producer side, instead of just the producer's declared max count,
-            // if no filled buffers have yet been queued by the producer.  This
-            // reset no longer happens, but some HALs depend on this behavior,
-            // so it needs to be maintained for HAL backwards compatibility.
-            // Simulate the prior behavior by disconnecting/reconnecting to the
-            // window and setting the values again.  This has the drawback of
-            // actually causing memory reallocation, which may not have happened
-            // in the past.
-            CameraHardwareInterface *hw = hwi(w);
-            native_window_api_disconnect(a, NATIVE_WINDOW_API_CAMERA);
-            native_window_api_connect(a, NATIVE_WINDOW_API_CAMERA);
-            if (hw->mPreviewScalingMode != NOT_SET) {
-                native_window_set_scaling_mode(a, hw->mPreviewScalingMode);
-            }
-            if (hw->mPreviewTransform != NOT_SET) {
-                native_window_set_buffers_transform(a, hw->mPreviewTransform);
-            }
-            if (hw->mPreviewWidth != NOT_SET) {
-                native_window_set_buffers_dimensions(a,
-                        hw->mPreviewWidth, hw->mPreviewHeight);
-                native_window_set_buffers_format(a, hw->mPreviewFormat);
-            }
-            if (hw->mPreviewUsage != 0) {
-                native_window_set_usage(a, hw->mPreviewUsage);
-            }
-            if (hw->mPreviewSwapInterval != NOT_SET) {
-                a->setSwapInterval(a, hw->mPreviewSwapInterval);
-            }
-            if (hw->mPreviewCrop.left != NOT_SET) {
-                native_window_set_crop(a, &(hw->mPreviewCrop));
-            }
-        }
+    static int sSetTimestamp(struct preview_stream_ops *w,
+                               int64_t timestamp);
 
-        return native_window_set_buffer_count(a, count);
-    }
+    static int sSetUsage(struct preview_stream_ops* w, int usage);
 
-    static int __set_buffers_geometry(struct preview_stream_ops* w,
-                      int width, int height, int format)
-    {
-        int rc;
-        ANativeWindow *a = anw(w);
-        CameraHardwareInterface *hw = hwi(w);
-        hw->mPreviewWidth = width;
-        hw->mPreviewHeight = height;
-        hw->mPreviewFormat = format;
-        rc = native_window_set_buffers_dimensions(a, width, height);
-        if (!rc) {
-            rc = native_window_set_buffers_format(a, format);
-        }
-        return rc;
-    }
+    static int sSetSwapInterval(struct preview_stream_ops *w, int interval);
 
-    static int __set_crop(struct preview_stream_ops *w,
-                      int left, int top, int right, int bottom)
-    {
-        ANativeWindow *a = anw(w);
-        CameraHardwareInterface *hw = hwi(w);
-        hw->mPreviewCrop.left = left;
-        hw->mPreviewCrop.top = top;
-        hw->mPreviewCrop.right = right;
-        hw->mPreviewCrop.bottom = bottom;
-        return native_window_set_crop(a, &(hw->mPreviewCrop));
-    }
-
-    static int __set_timestamp(struct preview_stream_ops *w,
-                               int64_t timestamp) {
-        ANativeWindow *a = anw(w);
-        return native_window_set_buffers_timestamp(a, timestamp);
-    }
-
-    static int __set_usage(struct preview_stream_ops* w, int usage)
-    {
-        ANativeWindow *a = anw(w);
-        CameraHardwareInterface *hw = hwi(w);
-        hw->mPreviewUsage = usage;
-        return native_window_set_usage(a, usage);
-    }
-
-    static int __set_swap_interval(struct preview_stream_ops *w, int interval)
-    {
-        ANativeWindow *a = anw(w);
-        CameraHardwareInterface *hw = hwi(w);
-        hw->mPreviewSwapInterval = interval;
-        return a->setSwapInterval(a, interval);
-    }
-
-    static int __get_min_undequeued_buffer_count(
+    static int sGetMinUndequeuedBufferCount(
                       const struct preview_stream_ops *w,
-                      int *count)
-    {
-        ANativeWindow *a = anw(w);
-        return a->query(a, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, count);
-    }
+                      int *count);
 
-    void initHalPreviewWindow()
-    {
-        mHalPreviewWindow.nw.cancel_buffer = __cancel_buffer;
-        mHalPreviewWindow.nw.lock_buffer = __lock_buffer;
-        mHalPreviewWindow.nw.dequeue_buffer = __dequeue_buffer;
-        mHalPreviewWindow.nw.enqueue_buffer = __enqueue_buffer;
-        mHalPreviewWindow.nw.set_buffer_count = __set_buffer_count;
-        mHalPreviewWindow.nw.set_buffers_geometry = __set_buffers_geometry;
-        mHalPreviewWindow.nw.set_crop = __set_crop;
-        mHalPreviewWindow.nw.set_timestamp = __set_timestamp;
-        mHalPreviewWindow.nw.set_usage = __set_usage;
-        mHalPreviewWindow.nw.set_swap_interval = __set_swap_interval;
+    void initHalPreviewWindow();
 
-        mHalPreviewWindow.nw.get_min_undequeued_buffer_count =
-                __get_min_undequeued_buffer_count;
-    }
+    std::pair<bool, uint64_t> getBufferId(ANativeWindowBuffer* anb);
+    void cleanupCirculatingBuffers();
+
+    /**
+     * Implementation of android::hardware::camera::device::V1_0::ICameraDeviceCallback
+     */
+    hardware::Return<void> notifyCallback(
+            hardware::camera::device::V1_0::NotifyCallbackMsg msgType,
+            int32_t ext1, int32_t ext2) override;
+    hardware::Return<uint32_t> registerMemory(
+            const hardware::hidl_handle& descriptor,
+            uint32_t bufferSize, uint32_t bufferCount) override;
+    hardware::Return<void> unregisterMemory(uint32_t memId) override;
+    hardware::Return<void> dataCallback(
+            hardware::camera::device::V1_0::DataCallbackMsg msgType,
+            uint32_t data, uint32_t bufferIndex,
+            const hardware::camera::device::V1_0::CameraFrameMetadata& metadata) override;
+    hardware::Return<void> dataCallbackTimestamp(
+            hardware::camera::device::V1_0::DataCallbackMsg msgType,
+            uint32_t data, uint32_t bufferIndex, int64_t timestamp) override;
+    hardware::Return<void> handleCallbackTimestamp(
+            hardware::camera::device::V1_0::DataCallbackMsg msgType,
+            const hardware::hidl_handle& frameData, uint32_t data,
+            uint32_t bufferIndex, int64_t timestamp) override;
+    hardware::Return<void> handleCallbackTimestampBatch(
+            hardware::camera::device::V1_0::DataCallbackMsg msgType,
+            const hardware::hidl_vec<
+                    hardware::camera::device::V1_0::HandleTimestampMessage>&) override;
+
+    /**
+     * Implementation of android::hardware::camera::device::V1_0::ICameraDevicePreviewCallback
+     */
+    hardware::Return<void> dequeueBuffer(dequeueBuffer_cb _hidl_cb) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            enqueueBuffer(uint64_t bufferId) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            cancelBuffer(uint64_t bufferId) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setBufferCount(uint32_t count) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setBuffersGeometry(uint32_t w, uint32_t h,
+                    hardware::graphics::common::V1_0::PixelFormat format) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setCrop(int32_t left, int32_t top, int32_t right, int32_t bottom) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setUsage(hardware::graphics::common::V1_0::BufferUsage usage) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setSwapInterval(int32_t interval) override;
+    hardware::Return<void> getMinUndequeuedBufferCount(
+        getMinUndequeuedBufferCount_cb _hidl_cb) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setTimestamp(int64_t timestamp) override;
 
     sp<ANativeWindow>        mPreviewWindow;
 
@@ -782,9 +466,10 @@
 
     struct camera_preview_window mHalPreviewWindow;
 
-    notify_callback         mNotifyCb;
-    data_callback           mDataCb;
-    data_callback_timestamp mDataCbTimestamp;
+    notify_callback               mNotifyCb;
+    data_callback                 mDataCb;
+    data_callback_timestamp       mDataCbTimestamp;
+    data_callback_timestamp_batch mDataCbTimestampBatch;
     void *mCbUser;
 
     // Cached values for preview stream parameters
@@ -797,6 +482,48 @@
     int mPreviewUsage;
     int mPreviewSwapInterval;
     android_native_rect_t mPreviewCrop;
+
+    struct BufferHasher {
+        size_t operator()(const buffer_handle_t& buf) const {
+            if (buf == nullptr)
+                return 0;
+
+            size_t result = 1;
+            result = 31 * result + buf->numFds;
+            result = 31 * result + buf->numInts;
+            int length = buf->numFds + buf->numInts;
+            for (int i = 0; i < length; i++) {
+                result = 31 * result + buf->data[i];
+            }
+            return result;
+        }
+    };
+
+    struct BufferComparator {
+        bool operator()(const buffer_handle_t& buf1, const buffer_handle_t& buf2) const {
+            if (buf1->numFds == buf2->numFds && buf1->numInts == buf2->numInts) {
+                int length = buf1->numFds + buf1->numInts;
+                for (int i = 0; i < length; i++) {
+                    if (buf1->data[i] != buf2->data[i]) {
+                        return false;
+                    }
+                }
+                return true;
+            }
+            return false;
+        }
+    };
+
+    std::mutex mBufferIdMapLock; // protecting mBufferIdMap and mNextBufferId
+    typedef std::unordered_map<const buffer_handle_t, uint64_t,
+            BufferHasher, BufferComparator> BufferIdMap;
+    // stream ID -> per stream buffer ID map
+    BufferIdMap mBufferIdMap;
+    std::unordered_map<uint64_t, ANativeWindowBuffer*> mReversedBufMap;
+    uint64_t mNextBufferId = 1;
+    static const uint64_t BUFFER_ID_NO_BUFFER = 0;
+
+    std::unordered_map<int, camera_memory_t*> mHidlMemPoolMap;
 };
 
 };  // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3BufferManager.cpp b/services/camera/libcameraservice/device3/Camera3BufferManager.cpp
index 1f01144..8c8b97a 100644
--- a/services/camera/libcameraservice/device3/Camera3BufferManager.cpp
+++ b/services/camera/libcameraservice/device3/Camera3BufferManager.cpp
@@ -29,15 +29,7 @@
 
 namespace camera3 {
 
-Camera3BufferManager::Camera3BufferManager(const sp<IGraphicBufferAlloc>& allocator) :
-        mAllocator(allocator) {
-    if (allocator == NULL) {
-        sp<ISurfaceComposer> composer(ComposerService::getComposerService());
-        mAllocator = composer->createGraphicBufferAlloc();
-        if (mAllocator == NULL) {
-            ALOGE("createGraphicBufferAlloc failed");
-        }
-    }
+Camera3BufferManager::Camera3BufferManager() {
 }
 
 Camera3BufferManager::~Camera3BufferManager() {
@@ -78,10 +70,6 @@
     }
 
     Mutex::Autolock l(mLock);
-    if (mAllocator == NULL) {
-        ALOGE("%s: allocator is NULL, buffer manager is bad state.", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
 
     // Check if this stream was registered with different stream set ID, if so, error out.
     for (size_t i = 0; i < mStreamSetMap.size(); i++) {
@@ -131,10 +119,6 @@
     Mutex::Autolock l(mLock);
     ALOGV("%s: unregister stream %d with stream set %d", __FUNCTION__,
             streamId, streamSetId);
-    if (mAllocator == NULL) {
-        ALOGE("%s: allocator is NULL, buffer manager is bad state.", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
 
     if (!checkIfStreamRegisteredLocked(streamId, streamSetId)){
         ALOGE("%s: stream %d with set id %d wasn't properly registered to this buffer manager!",
@@ -144,11 +128,9 @@
 
     // De-list all the buffers associated with this stream first.
     StreamSet& currentSet = mStreamSetMap.editValueFor(streamSetId);
-    BufferList& freeBufs = currentSet.freeBuffers;
     BufferCountMap& handOutBufferCounts = currentSet.handoutBufferCountMap;
     BufferCountMap& attachedBufferCounts = currentSet.attachedBufferCountMap;
     InfoMap& infoMap = currentSet.streamInfoMap;
-    removeBuffersFromBufferListLocked(freeBufs, streamId);
     handOutBufferCounts.removeItem(streamId);
     attachedBufferCounts.removeItem(streamId);
 
@@ -167,13 +149,93 @@
     currentSet.allocatedBufferWaterMark = 0;
 
     // Remove this stream set if all its streams have been removed.
-    if (freeBufs.size() == 0 && handOutBufferCounts.size() == 0 && infoMap.size() == 0) {
+    if (handOutBufferCounts.size() == 0 && infoMap.size() == 0) {
         mStreamSetMap.removeItem(streamSetId);
     }
 
     return OK;
 }
 
+void Camera3BufferManager::notifyBufferRemoved(int streamId, int streamSetId) {
+    Mutex::Autolock l(mLock);
+    StreamSet &streamSet = mStreamSetMap.editValueFor(streamSetId);
+    size_t& attachedBufferCount =
+            streamSet.attachedBufferCountMap.editValueFor(streamId);
+    attachedBufferCount--;
+}
+
+status_t Camera3BufferManager::checkAndFreeBufferOnOtherStreamsLocked(
+        int streamId, int streamSetId) {
+    StreamId firstOtherStreamId = CAMERA3_STREAM_ID_INVALID;
+    StreamSet &streamSet = mStreamSetMap.editValueFor(streamSetId);
+    if (streamSet.streamInfoMap.size() == 1) {
+        ALOGV("StreamSet %d has no other stream available to free", streamSetId);
+        return OK;
+    }
+
+    bool freeBufferIsAttached = false;
+    for (size_t i = 0; i < streamSet.streamInfoMap.size(); i++) {
+        firstOtherStreamId = streamSet.streamInfoMap[i].streamId;
+        if (firstOtherStreamId != streamId) {
+
+            size_t otherBufferCount  =
+                    streamSet.handoutBufferCountMap.valueFor(firstOtherStreamId);
+            size_t otherAttachedBufferCount =
+                    streamSet.attachedBufferCountMap.valueFor(firstOtherStreamId);
+            if (otherAttachedBufferCount > otherBufferCount) {
+                freeBufferIsAttached = true;
+                break;
+            }
+        }
+        firstOtherStreamId = CAMERA3_STREAM_ID_INVALID;
+    }
+    if (firstOtherStreamId == CAMERA3_STREAM_ID_INVALID || !freeBufferIsAttached) {
+        ALOGV("StreamSet %d has no buffer available to free", streamSetId);
+        return OK;
+    }
+
+
+    // This will drop the reference to one free buffer, which will effectively free one
+    // buffer (from the free buffer list) for the inactive streams.
+    size_t totalAllocatedBufferCount = 0;
+    for (size_t i = 0; i < streamSet.attachedBufferCountMap.size(); i++) {
+        totalAllocatedBufferCount += streamSet.attachedBufferCountMap[i];
+    }
+    if (totalAllocatedBufferCount > streamSet.allocatedBufferWaterMark) {
+        ALOGV("Stream %d: Freeing buffer: detach", firstOtherStreamId);
+        sp<Camera3OutputStream> stream =
+                mStreamMap.valueFor(firstOtherStreamId).promote();
+        if (stream == nullptr) {
+            ALOGE("%s: unable to promote stream %d to detach buffer", __FUNCTION__,
+                    firstOtherStreamId);
+            return INVALID_OPERATION;
+        }
+
+        // Detach and then drop the buffer.
+        //
+        // Need to unlock because the stream may also be calling
+        // into the buffer manager in parallel to signal buffer
+        // release, or acquire a new buffer.
+        bool bufferFreed = false;
+        {
+            mLock.unlock();
+            sp<GraphicBuffer> buffer;
+            stream->detachBuffer(&buffer, /*fenceFd*/ nullptr);
+            mLock.lock();
+            if (buffer.get() != nullptr) {
+                bufferFreed = true;
+            }
+        }
+        if (bufferFreed) {
+            size_t& otherAttachedBufferCount =
+                    streamSet.attachedBufferCountMap.editValueFor(firstOtherStreamId);
+            otherAttachedBufferCount--;
+        }
+    }
+
+    return OK;
+}
+
 status_t Camera3BufferManager::getBufferForStream(int streamId, int streamSetId,
         sp<GraphicBuffer>* gb, int* fenceFd) {
     ATRACE_CALL();
@@ -181,10 +243,6 @@
     Mutex::Autolock l(mLock);
     ALOGV("%s: get buffer for stream %d with stream set %d", __FUNCTION__,
             streamId, streamSetId);
-    if (mAllocator == NULL) {
-        ALOGE("%s: allocator is NULL, buffer manager is bad state.", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
 
     if (!checkIfStreamRegisteredLocked(streamId, streamSetId)) {
         ALOGE("%s: stream %d is not registered with stream set %d yet!!!",
@@ -211,27 +269,25 @@
     }
     ALOGV("Stream %d set %d: Get buffer for stream: Allocate new", streamId, streamSetId);
 
-    GraphicBufferEntry buffer =
-            getFirstBufferFromBufferListLocked(streamSet.freeBuffers, streamId);
-
     if (mGrallocVersion < HARDWARE_DEVICE_API_VERSION(1,0)) {
-        // Allocate one if there is no free buffer available.
-        if (buffer.graphicBuffer == nullptr) {
-            const StreamInfo& info = streamSet.streamInfoMap.valueFor(streamId);
-            status_t res = OK;
-            buffer.fenceFd = -1;
-            buffer.graphicBuffer = mAllocator->createGraphicBuffer(
-                    info.width, info.height, info.format, info.combinedUsage, &res);
-            ALOGV("%s: allocating a new graphic buffer (%dx%d, format 0x%x) %p with handle %p",
-                    __FUNCTION__, info.width, info.height, info.format,
-                    buffer.graphicBuffer.get(), buffer.graphicBuffer->handle);
-            if (res != OK) {
-                ALOGE("%s: graphic buffer allocation failed: (error %d %s) ",
-                        __FUNCTION__, res, strerror(-res));
-                return res;
-            }
-            ALOGV("%s: allocation done", __FUNCTION__);
+        const StreamInfo& info = streamSet.streamInfoMap.valueFor(streamId);
+        GraphicBufferEntry buffer;
+        buffer.fenceFd = -1;
+        buffer.graphicBuffer = new GraphicBuffer(
+                info.width, info.height, PixelFormat(info.format), info.combinedUsage,
+                std::string("Camera3BufferManager pid [") +
+                        std::to_string(getpid()) + "]");
+        status_t res = buffer.graphicBuffer->initCheck();
+
+        ALOGV("%s: allocating a new graphic buffer (%dx%d, format 0x%x) %p with handle %p",
+                __FUNCTION__, info.width, info.height, info.format,
+                buffer.graphicBuffer.get(), buffer.graphicBuffer->handle);
+        if (res < 0) {
+            ALOGE("%s: graphic buffer allocation failed: (error %d %s) ",
+                    __FUNCTION__, res, strerror(-res));
+            return res;
         }
+        ALOGV("%s: allocation done", __FUNCTION__);
 
         // Increase the hand-out and attached buffer counts for tracking purposes.
         bufferCount++;
@@ -252,69 +308,15 @@
         // in returnBufferForStream() if we want to free buffer more quickly.
         // TODO: probably should find out all the inactive stream IDs, and free the firstly found
         // buffers for them.
-        StreamId firstOtherStreamId = CAMERA3_STREAM_ID_INVALID;
-        if (streamSet.streamInfoMap.size() > 1) {
-            bool freeBufferIsAttached = false;
-            for (size_t i = 0; i < streamSet.streamInfoMap.size(); i++) {
-                firstOtherStreamId = streamSet.streamInfoMap[i].streamId;
-                if (firstOtherStreamId != streamId) {
-
-                    size_t otherBufferCount  =
-                            streamSet.handoutBufferCountMap.valueFor(firstOtherStreamId);
-                    size_t otherAttachedBufferCount =
-                            streamSet.attachedBufferCountMap.valueFor(firstOtherStreamId);
-                    if (otherAttachedBufferCount > otherBufferCount) {
-                        freeBufferIsAttached = true;
-                        break;
-                    }
-                    if (hasBufferForStreamLocked(streamSet.freeBuffers, firstOtherStreamId)) {
-                        freeBufferIsAttached = false;
-                        break;
-                    }
-                }
-                firstOtherStreamId = CAMERA3_STREAM_ID_INVALID;
-            }
-            if (firstOtherStreamId == CAMERA3_STREAM_ID_INVALID) {
-                return OK;
-            }
-
-            // This will drop the reference to one free buffer, which will effectively free one
-            // buffer (from the free buffer list) for the inactive streams.
-            size_t totalAllocatedBufferCount = streamSet.freeBuffers.size();
-            for (size_t i = 0; i < streamSet.attachedBufferCountMap.size(); i++) {
-                totalAllocatedBufferCount += streamSet.attachedBufferCountMap[i];
-            }
-            if (totalAllocatedBufferCount > streamSet.allocatedBufferWaterMark) {
-                ALOGV("%s: free a buffer from stream %d", __FUNCTION__, firstOtherStreamId);
-                if (freeBufferIsAttached) {
-                    ALOGV("Stream %d: Freeing buffer: detach", firstOtherStreamId);
-                    sp<Camera3OutputStream> stream =
-                            mStreamMap.valueFor(firstOtherStreamId).promote();
-                    if (stream == nullptr) {
-                        ALOGE("%s: unable to promote stream %d to detach buffer", __FUNCTION__,
-                                firstOtherStreamId);
-                        return INVALID_OPERATION;
-                    }
-
-                    // Detach and then drop the buffer.
-                    //
-                    // Need to unlock because the stream may also be calling
-                    // into the buffer manager in parallel to signal buffer
-                    // release, or acquire a new buffer.
-                    {
-                        mLock.unlock();
-                        sp<GraphicBuffer> buffer;
-                        stream->detachBuffer(&buffer, /*fenceFd*/ nullptr);
-                        mLock.lock();
-                    }
-                    size_t& otherAttachedBufferCount =
-                            streamSet.attachedBufferCountMap.editValueFor(firstOtherStreamId);
-                    otherAttachedBufferCount--;
-                } else {
-                    // Droppable buffer is in the free buffer list, grab and drop
-                    getFirstBufferFromBufferListLocked(streamSet.freeBuffers, firstOtherStreamId);
-                }
-            }
+        res = checkAndFreeBufferOnOtherStreamsLocked(streamId, streamSetId);
+        if (res != OK) {
+            return res;
+        }
+        // Since we just allocated one new buffer above, try free one more buffer from other streams
+        // to prevent total buffer count from growing
+        res = checkAndFreeBufferOnOtherStreamsLocked(streamId, streamSetId);
+        if (res != OK) {
+            return res;
         }
     } else {
         // TODO: implement this.
@@ -324,16 +326,19 @@
     return OK;
 }
 
-status_t Camera3BufferManager::onBufferReleased(int streamId, int streamSetId) {
+status_t Camera3BufferManager::onBufferReleased(
+        int streamId, int streamSetId, bool* shouldFreeBuffer) {
     ATRACE_CALL();
-    Mutex::Autolock l(mLock);
 
-    ALOGV("Stream %d set %d: Buffer released", streamId, streamSetId);
-    if (mAllocator == NULL) {
-        ALOGE("%s: allocator is NULL, buffer manager is bad state.", __FUNCTION__);
-        return INVALID_OPERATION;
+    if (shouldFreeBuffer == nullptr) {
+        ALOGE("%s: shouldFreeBuffer is null", __FUNCTION__);
+        return BAD_VALUE;
     }
 
+    Mutex::Autolock l(mLock);
+    ALOGV("Stream %d set %d: Buffer released", streamId, streamSetId);
+    *shouldFreeBuffer = false;
+
     if (!checkIfStreamRegisteredLocked(streamId, streamSetId)){
         ALOGV("%s: signaling buffer release for an already unregistered stream "
                 "(stream %d with set id %d)", __FUNCTION__, streamId, streamSetId);
@@ -347,6 +352,36 @@
         bufferCount--;
         ALOGV("%s: Stream %d set %d: Buffer count now %zu", __FUNCTION__, streamId, streamSetId,
                 bufferCount);
+
+        size_t totalAllocatedBufferCount = 0;
+        size_t totalHandOutBufferCount = 0;
+        for (size_t i = 0; i < streamSet.attachedBufferCountMap.size(); i++) {
+            totalAllocatedBufferCount += streamSet.attachedBufferCountMap[i];
+            totalHandOutBufferCount += streamSet.handoutBufferCountMap[i];
+        }
+
+        size_t newWaterMark = totalHandOutBufferCount + BUFFER_WATERMARK_DEC_THRESHOLD;
+        if (totalAllocatedBufferCount > newWaterMark &&
+                    streamSet.allocatedBufferWaterMark > newWaterMark) {
+            // BufferManager got more than enough buffers, so decrease watermark
+            // to trigger more buffers free operation.
+            streamSet.allocatedBufferWaterMark = newWaterMark;
+            ALOGV("%s: Stream %d set %d: watermark--; now %zu",
+                    __FUNCTION__, streamId, streamSetId, streamSet.allocatedBufferWaterMark);
+        }
+
+        size_t attachedBufferCount = streamSet.attachedBufferCountMap.valueFor(streamId);
+        if (attachedBufferCount <= bufferCount) {
+            ALOGV("%s: stream %d has no buffer available to free.", __FUNCTION__, streamId);
+        }
+
+        bool freeBufferIsAttached = (attachedBufferCount > bufferCount);
+        if (freeBufferIsAttached &&
+                totalAllocatedBufferCount > streamSet.allocatedBufferWaterMark &&
+                attachedBufferCount > bufferCount + BUFFER_FREE_THRESHOLD) {
+            ALOGV("%s: free a buffer from stream %d", __FUNCTION__, streamId);
+            *shouldFreeBuffer = true;
+        }
     } else {
         // TODO: implement gralloc V1 support
         return BAD_VALUE;
@@ -355,44 +390,42 @@
     return OK;
 }
 
-status_t Camera3BufferManager::returnBufferForStream(int streamId,
-        int streamSetId, const sp<GraphicBuffer>& buffer, int fenceFd) {
+status_t Camera3BufferManager::onBuffersRemoved(int streamId, int streamSetId, size_t count) {
     ATRACE_CALL();
     Mutex::Autolock l(mLock);
-    ALOGV_IF(buffer != 0, "%s: return buffer (%p) with handle (%p) for stream %d and stream set %d",
-            __FUNCTION__, buffer.get(), buffer->handle, streamId, streamSetId);
-    if (mAllocator == NULL) {
-        ALOGE("%s: allocator is NULL, buffer manager is bad state.", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
+
+    ALOGV("Stream %d set %d: Buffer removed", streamId, streamSetId);
 
     if (!checkIfStreamRegisteredLocked(streamId, streamSetId)){
-        ALOGV("%s: returning buffer for an already unregistered stream (stream %d with set id %d),"
-                "buffer will be dropped right away!", __FUNCTION__, streamId, streamSetId);
+        ALOGV("%s: signaling buffer removal for an already unregistered stream "
+                "(stream %d with set id %d)", __FUNCTION__, streamId, streamSetId);
         return OK;
     }
 
     if (mGrallocVersion < HARDWARE_DEVICE_API_VERSION(1,0)) {
-        // Add to the freeBuffer list.
         StreamSet& streamSet = mStreamSetMap.editValueFor(streamSetId);
-        if (buffer != 0) {
-            BufferEntry entry;
-            entry.add(streamId, GraphicBufferEntry(buffer, fenceFd));
-            status_t res = addBufferToBufferListLocked(streamSet.freeBuffers, entry);
-            if (res != OK) {
-                ALOGE("%s: add buffer to free buffer list failed", __FUNCTION__);
-                return res;
-            }
+        BufferCountMap& handOutBufferCounts = streamSet.handoutBufferCountMap;
+        size_t& totalHandoutCount = handOutBufferCounts.editValueFor(streamId);
+        BufferCountMap& attachedBufferCounts = streamSet.attachedBufferCountMap;
+        size_t& totalAttachedCount = attachedBufferCounts.editValueFor(streamId);
+
+        if (count > totalHandoutCount) {
+            ALOGE("%s: Removed buffer count %zu greater than current handout count %zu",
+                    __FUNCTION__, count, totalHandoutCount);
+            return BAD_VALUE;
+        }
+        if (count > totalAttachedCount) {
+            ALOGE("%s: Removed buffer count %zu greater than current attached count %zu",
+                  __FUNCTION__, count, totalAttachedCount);
+            return BAD_VALUE;
         }
 
-        // Update the handed out and attached buffer count for this buffer.
-        BufferCountMap& handOutBufferCounts = streamSet.handoutBufferCountMap;
-        size_t& bufferCount = handOutBufferCounts.editValueFor(streamId);
-        bufferCount--;
-        size_t& attachedBufferCount = streamSet.attachedBufferCountMap.editValueFor(streamId);
-        attachedBufferCount--;
+        totalHandoutCount -= count;
+        totalAttachedCount -= count;
+        ALOGV("%s: Stream %d set %d: Buffer count now %zu, attached buffer count now %zu",
+                __FUNCTION__, streamId, streamSetId, totalHandoutCount, totalAttachedCount);
     } else {
-        // TODO: implement this.
+        // TODO: implement gralloc V1 support
         return BAD_VALUE;
     }
 
@@ -428,17 +461,6 @@
             lines.appendFormat("            stream id: %d, attached buffer count: %zu.\n",
                     streamId, bufferCount);
         }
-
-        lines.appendFormat("          Free buffer count: %zu\n",
-                mStreamSetMap[i].freeBuffers.size());
-        for (auto& bufEntry : mStreamSetMap[i].freeBuffers) {
-            for (size_t m = 0; m < bufEntry.size(); m++) {
-                const sp<GraphicBuffer>& buffer = bufEntry.valueAt(m).graphicBuffer;
-                int streamId = bufEntry.keyAt(m);
-                lines.appendFormat("            stream id: %d, buffer: %p, handle: %p.\n",
-                        streamId, buffer.get(), buffer->handle);
-            }
-        }
     }
     write(fd, lines.string(), lines.size());
 }
@@ -468,67 +490,5 @@
     return true;
 }
 
-status_t Camera3BufferManager::addBufferToBufferListLocked(BufferList& bufList,
-        const BufferEntry& buffer) {
-    // TODO: need add some sanity check here.
-    bufList.push_back(buffer);
-
-    return OK;
-}
-
-status_t Camera3BufferManager::removeBuffersFromBufferListLocked(BufferList& bufferList,
-        int streamId) {
-    BufferList::iterator i = bufferList.begin();
-    while (i != bufferList.end()) {
-        ssize_t idx = i->indexOfKey(streamId);
-        if (idx != NAME_NOT_FOUND) {
-            ALOGV("%s: Remove a buffer for stream %d, free buffer total count: %zu",
-                    __FUNCTION__, streamId, bufferList.size());
-            i->removeItem(streamId);
-            if (i->isEmpty()) {
-                i = bufferList.erase(i);
-            }
-        } else {
-            i++;
-        }
-    }
-
-    return OK;
-}
-
-bool Camera3BufferManager::hasBufferForStreamLocked(BufferList& buffers, int streamId) {
-    BufferList::iterator i = buffers.begin();
-    while (i != buffers.end()) {
-        ssize_t idx = i->indexOfKey(streamId);
-        if (idx != NAME_NOT_FOUND) {
-            return true;
-        }
-        i++;
-    }
-
-    return false;
-}
-
-Camera3BufferManager::GraphicBufferEntry Camera3BufferManager::getFirstBufferFromBufferListLocked(
-        BufferList& buffers, int streamId) {
-    // Try to get the first buffer from the free buffer list if there is one.
-    GraphicBufferEntry entry;
-    BufferList::iterator i = buffers.begin();
-    while (i != buffers.end()) {
-        ssize_t idx = i->indexOfKey(streamId);
-        if (idx != NAME_NOT_FOUND) {
-            entry = GraphicBufferEntry(i->valueAt(idx));
-            i = buffers.erase(i);
-            break;
-        } else {
-            i++;
-        }
-    }
-
-    ALOGV_IF(entry.graphicBuffer == 0, "%s: Unable to find free buffer for stream %d",
-            __FUNCTION__, streamId);
-    return entry;
-}
-
 } // namespace camera3
 } // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3BufferManager.h b/services/camera/libcameraservice/device3/Camera3BufferManager.h
index ab6541e..025062e 100644
--- a/services/camera/libcameraservice/device3/Camera3BufferManager.h
+++ b/services/camera/libcameraservice/device3/Camera3BufferManager.h
@@ -44,7 +44,7 @@
  */
 class Camera3BufferManager: public virtual RefBase {
 public:
-    Camera3BufferManager(const sp<IGraphicBufferAlloc>& allocator = NULL);
+    explicit Camera3BufferManager();
 
     virtual ~Camera3BufferManager();
 
@@ -137,41 +137,41 @@
      * buffer has been reused. The manager will call detachBuffer on the stream
      * if it needs the released buffer otherwise.
      *
+     * When shouldFreeBuffer is set to true, caller must detach and free one buffer from the
+     * buffer queue, and then call notifyBufferRemoved to update the manager.
+     *
      * Return values:
      *
      *  OK:        Buffer release was processed succesfully
      *  BAD_VALUE: stream ID or streamSetId are invalid, or stream ID and stream set ID
      *             combination doesn't match what was registered, or this stream wasn't registered
-     *             to this buffer manager before.
+     *             to this buffer manager before, or shouldFreeBuffer is null/
      */
-    status_t onBufferReleased(int streamId, int streamSetId);
+    status_t onBufferReleased(int streamId, int streamSetId, /*out*/bool* shouldFreeBuffer);
 
     /**
-     * This method returns a buffer for a stream to this buffer manager.
+     * This method notifies the manager that certain buffers has been removed from the
+     * buffer queue by detachBuffer from the consumer.
      *
-     * When a buffer is returned, it is treated as a free buffer and may either be reused for future
-     * getBufferForStream() calls, or freed if there total number of outstanding allocated buffers
-     * is too large. The latter only applies to the case where the buffer are physically shared
-     * between streams in the same stream set. A physically shared buffer is the buffer that has one
-     * physical back store but multiple handles. Multiple stream can access the same physical memory
-     * with their own handles. Physically shared buffer can only be supported by Gralloc HAL V1.
-     * See hardware/libhardware/include/hardware/gralloc1.h for more details.
+     * The notification lets the manager update its internal handout buffer count and
+     * attached buffer counts accordingly. When buffers are detached from
+     * consumer, both handout and attached counts are decremented.
      *
+     * Return values:
      *
-     * This call takes the ownership of the returned buffer if it was allocated by this buffer
-     * manager; clients should not use this buffer after this call. Attempting to access this buffer
-     * after this call will have undefined behavior. Holding a reference to this buffer after this
-     * call may cause memory leakage. If a BufferQueue is used to track the buffers handed out by
-     * this buffer queue, it is recommended to call detachNextBuffer() from the buffer queue after
-     * BufferQueueProducer onBufferReleased callback is fired, and return it to this buffer manager.
-     *
-     *  OK:        Buffer return for this stream was successful.
-     *  BAD_VALUE: stream ID or streamSetId are invalid, or stream ID and stream set ID combination
-     *             doesn't match what was registered, or this stream wasn't registered to this
-     *             buffer manager before.
+     *  OK:        Buffer removal was processed succesfully
+     *  BAD_VALUE: stream ID or streamSetId are invalid, or stream ID and stream set ID
+     *             combination doesn't match what was registered, or this stream wasn't registered
+     *             to this buffer manager before, or the removed buffer count is larger than
+     *             current total handoutCount or attachedCount.
      */
-    status_t returnBufferForStream(int streamId, int streamSetId, const sp<GraphicBuffer>& buffer,
-            int fenceFd);
+    status_t onBuffersRemoved(int streamId, int streamSetId, size_t count);
+
+    /**
+     * This method notifiers the manager that a buffer is freed from the buffer queue, usually
+     * because onBufferReleased signals the caller to free a buffer via the shouldFreeBuffer flag.
+     */
+    void notifyBufferRemoved(int streamId, int streamSetId);
 
     /**
      * Dump the buffer manager statistics.
@@ -179,6 +179,18 @@
     void     dump(int fd, const Vector<String16> &args) const;
 
 private:
+    // allocatedBufferWaterMark will be decreased when:
+    //   numAllocatedBuffersThisSet > numHandoutBuffersThisSet + BUFFER_WATERMARK_DEC_THRESHOLD
+    // This allows the watermark go back down after a burst of buffer requests
+    static const int BUFFER_WATERMARK_DEC_THRESHOLD = 3;
+
+    // onBufferReleased will set shouldFreeBuffer to true when:
+    //   numAllocatedBuffersThisSet > allocatedBufferWaterMark AND
+    //   numAllocatedBuffersThisStream > numHandoutBuffersThisStream + BUFFER_FREE_THRESHOLD
+    // So after a burst of buffer requests and back to steady state, the buffer queue should have
+    // (BUFFER_FREE_THRESHOLD + steady state handout buffer count) buffers.
+    static const int BUFFER_FREE_THRESHOLD = 3;
+
     /**
      * Lock to synchronize the access to the methods of this class.
      */
@@ -186,16 +198,10 @@
 
     static const size_t kMaxBufferCount = BufferQueueDefs::NUM_BUFFER_SLOTS;
 
-    /**
-     * mAllocator is the connection to SurfaceFlinger that is used to allocate new GraphicBuffer
-     * objects.
-     */
-    sp<IGraphicBufferAlloc> mAllocator;
-
     struct GraphicBufferEntry {
         sp<GraphicBuffer> graphicBuffer;
         int fenceFd;
-        GraphicBufferEntry(const sp<GraphicBuffer>& gb = 0, int fd = -1) :
+        explicit GraphicBufferEntry(const sp<GraphicBuffer>& gb = 0, int fd = -1) :
             graphicBuffer(gb),
             fenceFd(fd) {}
     };
@@ -262,11 +268,6 @@
          */
         InfoMap streamInfoMap;
         /**
-         * The free buffer list for all the buffers belong to this set. The free buffers are
-         * returned by the returnBufferForStream() call, and available for reuse.
-         */
-        BufferList freeBuffers;
-        /**
          * The count of the buffers that were handed out to the streams of this set.
          */
         BufferCountMap handoutBufferCountMap;
@@ -300,37 +301,10 @@
     bool checkIfStreamRegisteredLocked(int streamId, int streamSetId) const;
 
     /**
-     * Add a buffer entry to the BufferList. This method needs to be called with mLock held.
+     * Check if other streams in the stream set has extra buffer available to be freed, and
+     * free one if so.
      */
-    status_t addBufferToBufferListLocked(BufferList &bufList, const BufferEntry &buffer);
-
-    /**
-     * Remove all buffers from the BufferList.
-     *
-     * Note that this doesn't mean that the buffers are freed after this call. A buffer is freed
-     * only if all other references to it are dropped.
-     *
-     * This method needs to be called with mLock held.
-     */
-    status_t removeBuffersFromBufferListLocked(BufferList &bufList, int streamId);
-
-    /**
-     * Get the first available buffer from the buffer list for this stream. The graphicBuffer inside
-     * this entry will be NULL if there is no any GraphicBufferEntry found. After this call, the
-     * GraphicBufferEntry will be removed from the BufferList if a GraphicBufferEntry is found.
-     *
-     * This method needs to be called with mLock held.
-     *
-     */
-    GraphicBufferEntry getFirstBufferFromBufferListLocked(BufferList& buffers, int streamId);
-
-    /**
-     * Check if there is any buffer associated with this stream in the given buffer list.
-     *
-     * This method needs to be called with mLock held.
-     *
-     */
-    bool inline hasBufferForStreamLocked(BufferList& buffers, int streamId);
+    status_t checkAndFreeBufferOnOtherStreamsLocked(int streamId, int streamSetId);
 };
 
 } // namespace camera3
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index eece01b..e8b9b20 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -26,7 +26,7 @@
 #endif
 
 // Convenience macro for transient errors
-#define CLOGE(fmt, ...) ALOGE("Camera %d: %s: " fmt, mId, __FUNCTION__, \
+#define CLOGE(fmt, ...) ALOGE("Camera %s: %s: " fmt, mId.string(), __FUNCTION__, \
             ##__VA_ARGS__)
 
 // Convenience macros for transitioning to the error state
@@ -51,18 +51,20 @@
 #include "device3/Camera3Device.h"
 #include "device3/Camera3OutputStream.h"
 #include "device3/Camera3InputStream.h"
-#include "device3/Camera3ZslStream.h"
 #include "device3/Camera3DummyStream.h"
+#include "device3/Camera3SharedOutputStream.h"
 #include "CameraService.h"
 
 using namespace android::camera3;
+using namespace android::hardware::camera;
+using namespace android::hardware::camera::device::V3_2;
 
 namespace android {
 
-Camera3Device::Camera3Device(int id):
+Camera3Device::Camera3Device(const String8 &id):
         mId(id),
+        mOperatingMode(NO_MODE),
         mIsConstrainedHighSpeedConfiguration(false),
-        mHal3Device(NULL),
         mStatus(STATUS_UNINITIALIZED),
         mStatusWaiters(0),
         mUsePartialResult(false),
@@ -72,100 +74,101 @@
         mNextReprocessResultFrameNumber(0),
         mNextShutterFrameNumber(0),
         mNextReprocessShutterFrameNumber(0),
-        mListener(NULL)
+        mListener(NULL),
+        mVendorTagId(CAMERA_METADATA_INVALID_VENDOR_ID)
 {
     ATRACE_CALL();
     camera3_callback_ops::notify = &sNotify;
     camera3_callback_ops::process_capture_result = &sProcessCaptureResult;
-    ALOGV("%s: Created device for camera %d", __FUNCTION__, id);
+    ALOGV("%s: Created device for camera %s", __FUNCTION__, mId.string());
 }
 
 Camera3Device::~Camera3Device()
 {
     ATRACE_CALL();
-    ALOGV("%s: Tearing down for camera id %d", __FUNCTION__, mId);
+    ALOGV("%s: Tearing down for camera id %s", __FUNCTION__, mId.string());
     disconnect();
 }
 
-int Camera3Device::getId() const {
+const String8& Camera3Device::getId() const {
     return mId;
 }
 
-/**
- * CameraDeviceBase interface
- */
-
-status_t Camera3Device::initialize(CameraModule *module)
-{
+status_t Camera3Device::initialize(sp<CameraProviderManager> manager) {
     ATRACE_CALL();
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
-    ALOGV("%s: Initializing device for camera %d", __FUNCTION__, mId);
+    ALOGV("%s: Initializing HIDL device for camera %s", __FUNCTION__, mId.string());
     if (mStatus != STATUS_UNINITIALIZED) {
         CLOGE("Already initialized!");
         return INVALID_OPERATION;
     }
+    if (manager == nullptr) return INVALID_OPERATION;
 
-    /** Open HAL device */
-
-    status_t res;
-    String8 deviceName = String8::format("%d", mId);
-
-    camera3_device_t *device;
-
-    ATRACE_BEGIN("camera3->open");
-    res = module->open(deviceName.string(),
-            reinterpret_cast<hw_device_t**>(&device));
+    sp<ICameraDeviceSession> session;
+    ATRACE_BEGIN("CameraHal::openSession");
+    status_t res = manager->openSession(mId.string(), this,
+            /*out*/ &session);
     ATRACE_END();
-
     if (res != OK) {
-        SET_ERR_L("Could not open camera: %s (%d)", strerror(-res), res);
+        SET_ERR_L("Could not open camera session: %s (%d)", strerror(-res), res);
         return res;
     }
 
-    /** Cross-check device version */
-    if (device->common.version < CAMERA_DEVICE_API_VERSION_3_0) {
-        SET_ERR_L("Could not open camera: "
-                "Camera device should be at least %x, reports %x instead",
-                CAMERA_DEVICE_API_VERSION_3_0,
-                device->common.version);
-        device->common.close(&device->common);
-        return BAD_VALUE;
-    }
-
-    camera_info info;
-    res = module->getCameraInfo(mId, &info);
-    if (res != OK) return res;
-
-    if (info.device_version != device->common.version) {
-        SET_ERR_L("HAL reporting mismatched camera_info version (%x)"
-                " and device version (%x).",
-                info.device_version, device->common.version);
-        device->common.close(&device->common);
-        return BAD_VALUE;
-    }
-
-    /** Initialize device with callback functions */
-
-    ATRACE_BEGIN("camera3->initialize");
-    res = device->ops->initialize(device, this);
-    ATRACE_END();
-
+    res = manager->getCameraCharacteristics(mId.string(), &mDeviceInfo);
     if (res != OK) {
-        SET_ERR_L("Unable to initialize HAL device: %s (%d)",
-                strerror(-res), res);
-        device->common.close(&device->common);
-        return BAD_VALUE;
+        SET_ERR_L("Could not retrive camera characteristics: %s (%d)", strerror(-res), res);
+        session->close();
+        return res;
     }
 
+    std::shared_ptr<RequestMetadataQueue> queue;
+    auto requestQueueRet = session->getCaptureRequestMetadataQueue(
+        [&queue](const auto& descriptor) {
+            queue = std::make_shared<RequestMetadataQueue>(descriptor);
+            if (!queue->isValid() || queue->availableToWrite() <= 0) {
+                ALOGE("HAL returns empty request metadata fmq, not use it");
+                queue = nullptr;
+                // don't use the queue onwards.
+            }
+        });
+    if (!requestQueueRet.isOk()) {
+        ALOGE("Transaction error when getting request metadata fmq: %s, not use it",
+                requestQueueRet.description().c_str());
+        return DEAD_OBJECT;
+    }
+    auto resultQueueRet = session->getCaptureResultMetadataQueue(
+        [&queue = mResultMetadataQueue](const auto& descriptor) {
+            queue = std::make_unique<ResultMetadataQueue>(descriptor);
+            if (!queue->isValid() ||  queue->availableToWrite() <= 0) {
+                ALOGE("HAL returns empty result metadata fmq, not use it");
+                queue = nullptr;
+                // Don't use the queue onwards.
+            }
+        });
+    if (!resultQueueRet.isOk()) {
+        ALOGE("Transaction error when getting result metadata queue from camera session: %s",
+                resultQueueRet.description().c_str());
+        return DEAD_OBJECT;
+    }
+
+    mInterface = std::make_unique<HalInterface>(session, queue);
+    std::string providerType;
+    mVendorTagId = manager->getProviderTagIdLocked(mId.string());
+
+    return initializeCommonLocked();
+}
+
+status_t Camera3Device::initializeCommonLocked() {
+
     /** Start up status tracker thread */
     mStatusTracker = new StatusTracker(this);
-    res = mStatusTracker->run(String8::format("C3Dev-%d-Status", mId).string());
+    status_t res = mStatusTracker->run(String8::format("C3Dev-%s-Status", mId.string()).string());
     if (res != OK) {
         SET_ERR_L("Unable to start status tracking thread: %s (%d)",
                 strerror(-res), res);
-        device->common.close(&device->common);
+        mInterface->close();
         mStatusTracker.clear();
         return res;
     }
@@ -176,42 +179,21 @@
     /** Create buffer manager */
     mBufferManager = new Camera3BufferManager();
 
-    bool aeLockAvailable = false;
-    camera_metadata_ro_entry aeLockAvailableEntry;
-    res = find_camera_metadata_ro_entry(info.static_camera_characteristics,
-            ANDROID_CONTROL_AE_LOCK_AVAILABLE, &aeLockAvailableEntry);
-    if (res == OK && aeLockAvailableEntry.count > 0) {
-        aeLockAvailable = (aeLockAvailableEntry.data.u8[0] ==
-                ANDROID_CONTROL_AE_LOCK_AVAILABLE_TRUE);
-    }
+    mTagMonitor.initialize(mVendorTagId);
 
     /** Start up request queue thread */
-    mRequestThread = new RequestThread(this, mStatusTracker, device, aeLockAvailable);
-    res = mRequestThread->run(String8::format("C3Dev-%d-ReqQueue", mId).string());
+    mRequestThread = new RequestThread(this, mStatusTracker, mInterface.get());
+    res = mRequestThread->run(String8::format("C3Dev-%s-ReqQueue", mId.string()).string());
     if (res != OK) {
         SET_ERR_L("Unable to start request queue thread: %s (%d)",
                 strerror(-res), res);
-        device->common.close(&device->common);
+        mInterface->close();
         mRequestThread.clear();
         return res;
     }
 
     mPreparerThread = new PreparerThread();
 
-    /** Everything is good to go */
-
-    mDeviceVersion = device->common.version;
-    mDeviceInfo = info.static_camera_characteristics;
-    mHal3Device = device;
-
-    // Determine whether we need to derive sensitivity boost values for older devices.
-    // If post-RAW sensitivity boost range is listed, so should post-raw sensitivity control
-    // be listed (as the default value 100)
-    if (mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_4 &&
-            mDeviceInfo.exists(ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE)) {
-        mDerivePostRawSensKey = true;
-    }
-
     internalUpdateStatusLocked(STATUS_UNCONFIGURED);
     mNextStreamId = 0;
     mDummyStreamId = NO_STREAM;
@@ -227,19 +209,11 @@
     }
 
     // Will the HAL be sending in early partial result metadata?
-    if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
-        camera_metadata_entry partialResultsCount =
-                mDeviceInfo.find(ANDROID_REQUEST_PARTIAL_RESULT_COUNT);
-        if (partialResultsCount.count > 0) {
-            mNumPartialResults = partialResultsCount.data.i32[0];
-            mUsePartialResult = (mNumPartialResults > 1);
-        }
-    } else {
-        camera_metadata_entry partialResultsQuirk =
-                mDeviceInfo.find(ANDROID_QUIRKS_USE_PARTIAL_RESULT);
-        if (partialResultsQuirk.count > 0 && partialResultsQuirk.data.u8[0] == 1) {
-            mUsePartialResult = true;
-        }
+    camera_metadata_entry partialResultsCount =
+            mDeviceInfo.find(ANDROID_REQUEST_PARTIAL_RESULT_COUNT);
+    if (partialResultsCount.count > 0) {
+        mNumPartialResults = partialResultsCount.data.i32[0];
+        mUsePartialResult = (mNumPartialResults > 1);
     }
 
     camera_metadata_entry configs =
@@ -312,7 +286,7 @@
         mStatusTracker->join();
     }
 
-    camera3_device_t *hal3Device;
+    HalInterface* interface;
     {
         Mutex::Autolock l(mLock);
 
@@ -320,20 +294,16 @@
         mStatusTracker.clear();
         mBufferManager.clear();
 
-        hal3Device = mHal3Device;
+        interface = mInterface.get();
     }
 
     // Call close without internal mutex held, as the HAL close may need to
     // wait on assorted callbacks,etc, to complete before it can return.
-    if (hal3Device != NULL) {
-        ATRACE_BEGIN("camera3->close");
-        hal3Device->common.close(&hal3Device->common);
-        ATRACE_END();
-    }
+    interface->close();
 
     {
         Mutex::Autolock l(mLock);
-        mHal3Device = NULL;
+        mInterface->clear();
         internalUpdateStatusLocked(STATUS_UNINITIALIZED);
     }
 
@@ -359,48 +329,32 @@
 
 Camera3Device::Size Camera3Device::getMaxJpegResolution() const {
     int32_t maxJpegWidth = 0, maxJpegHeight = 0;
-    if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
-        const int STREAM_CONFIGURATION_SIZE = 4;
-        const int STREAM_FORMAT_OFFSET = 0;
-        const int STREAM_WIDTH_OFFSET = 1;
-        const int STREAM_HEIGHT_OFFSET = 2;
-        const int STREAM_IS_INPUT_OFFSET = 3;
-        camera_metadata_ro_entry_t availableStreamConfigs =
-                mDeviceInfo.find(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS);
-        if (availableStreamConfigs.count == 0 ||
-                availableStreamConfigs.count % STREAM_CONFIGURATION_SIZE != 0) {
-            return Size(0, 0);
-        }
+    const int STREAM_CONFIGURATION_SIZE = 4;
+    const int STREAM_FORMAT_OFFSET = 0;
+    const int STREAM_WIDTH_OFFSET = 1;
+    const int STREAM_HEIGHT_OFFSET = 2;
+    const int STREAM_IS_INPUT_OFFSET = 3;
+    camera_metadata_ro_entry_t availableStreamConfigs =
+            mDeviceInfo.find(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS);
+    if (availableStreamConfigs.count == 0 ||
+            availableStreamConfigs.count % STREAM_CONFIGURATION_SIZE != 0) {
+        return Size(0, 0);
+    }
 
-        // Get max jpeg size (area-wise).
-        for (size_t i=0; i < availableStreamConfigs.count; i+= STREAM_CONFIGURATION_SIZE) {
-            int32_t format = availableStreamConfigs.data.i32[i + STREAM_FORMAT_OFFSET];
-            int32_t width = availableStreamConfigs.data.i32[i + STREAM_WIDTH_OFFSET];
-            int32_t height = availableStreamConfigs.data.i32[i + STREAM_HEIGHT_OFFSET];
-            int32_t isInput = availableStreamConfigs.data.i32[i + STREAM_IS_INPUT_OFFSET];
-            if (isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT
-                    && format == HAL_PIXEL_FORMAT_BLOB &&
-                    (width * height > maxJpegWidth * maxJpegHeight)) {
-                maxJpegWidth = width;
-                maxJpegHeight = height;
-            }
-        }
-    } else {
-        camera_metadata_ro_entry availableJpegSizes =
-                mDeviceInfo.find(ANDROID_SCALER_AVAILABLE_JPEG_SIZES);
-        if (availableJpegSizes.count == 0 || availableJpegSizes.count % 2 != 0) {
-            return Size(0, 0);
-        }
-
-        // Get max jpeg size (area-wise).
-        for (size_t i = 0; i < availableJpegSizes.count; i += 2) {
-            if ((availableJpegSizes.data.i32[i] * availableJpegSizes.data.i32[i + 1])
-                    > (maxJpegWidth * maxJpegHeight)) {
-                maxJpegWidth = availableJpegSizes.data.i32[i];
-                maxJpegHeight = availableJpegSizes.data.i32[i + 1];
-            }
+    // Get max jpeg size (area-wise).
+    for (size_t i=0; i < availableStreamConfigs.count; i+= STREAM_CONFIGURATION_SIZE) {
+        int32_t format = availableStreamConfigs.data.i32[i + STREAM_FORMAT_OFFSET];
+        int32_t width = availableStreamConfigs.data.i32[i + STREAM_WIDTH_OFFSET];
+        int32_t height = availableStreamConfigs.data.i32[i + STREAM_HEIGHT_OFFSET];
+        int32_t isInput = availableStreamConfigs.data.i32[i + STREAM_IS_INPUT_OFFSET];
+        if (isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT
+                && format == HAL_PIXEL_FORMAT_BLOB &&
+                (width * height > maxJpegWidth * maxJpegHeight)) {
+            maxJpegWidth = width;
+            maxJpegHeight = height;
         }
     }
+
     return Size(maxJpegWidth, maxJpegHeight);
 }
 
@@ -422,37 +376,86 @@
     return measured;
 }
 
-/**
- * Map Android N dataspace definitions back to Android M definitions, for
- * use with HALv3.3 or older.
- *
- * Only map where correspondences exist, and otherwise preserve the value.
- */
-android_dataspace Camera3Device::mapToLegacyDataspace(android_dataspace dataSpace) {
-    switch (dataSpace) {
-        case HAL_DATASPACE_V0_SRGB_LINEAR:
-            return HAL_DATASPACE_SRGB_LINEAR;
-        case HAL_DATASPACE_V0_SRGB:
-            return HAL_DATASPACE_SRGB;
-        case HAL_DATASPACE_V0_JFIF:
-            return HAL_DATASPACE_JFIF;
-        case HAL_DATASPACE_V0_BT601_625:
-            return HAL_DATASPACE_BT601_625;
-        case HAL_DATASPACE_V0_BT601_525:
-            return HAL_DATASPACE_BT601_525;
-        case HAL_DATASPACE_V0_BT709:
-            return HAL_DATASPACE_BT709;
-        default:
-            return dataSpace;
+hardware::graphics::common::V1_0::PixelFormat Camera3Device::mapToPixelFormat(
+        int frameworkFormat) {
+    return (hardware::graphics::common::V1_0::PixelFormat) frameworkFormat;
+}
+
+DataspaceFlags Camera3Device::mapToHidlDataspace(
+        android_dataspace dataSpace) {
+    return dataSpace;
+}
+
+BufferUsageFlags Camera3Device::mapToConsumerUsage(
+        uint32_t usage) {
+    return usage;
+}
+
+StreamRotation Camera3Device::mapToStreamRotation(camera3_stream_rotation_t rotation) {
+    switch (rotation) {
+        case CAMERA3_STREAM_ROTATION_0:
+            return StreamRotation::ROTATION_0;
+        case CAMERA3_STREAM_ROTATION_90:
+            return StreamRotation::ROTATION_90;
+        case CAMERA3_STREAM_ROTATION_180:
+            return StreamRotation::ROTATION_180;
+        case CAMERA3_STREAM_ROTATION_270:
+            return StreamRotation::ROTATION_270;
     }
+    ALOGE("%s: Unknown stream rotation %d", __FUNCTION__, rotation);
+    return StreamRotation::ROTATION_0;
+}
+
+status_t Camera3Device::mapToStreamConfigurationMode(
+        camera3_stream_configuration_mode_t operationMode, StreamConfigurationMode *mode) {
+    if (mode == nullptr) return BAD_VALUE;
+    if (operationMode < CAMERA3_VENDOR_STREAM_CONFIGURATION_MODE_START) {
+        switch(operationMode) {
+            case CAMERA3_STREAM_CONFIGURATION_NORMAL_MODE:
+                *mode = StreamConfigurationMode::NORMAL_MODE;
+                break;
+            case CAMERA3_STREAM_CONFIGURATION_CONSTRAINED_HIGH_SPEED_MODE:
+                *mode = StreamConfigurationMode::CONSTRAINED_HIGH_SPEED_MODE;
+                break;
+            default:
+                ALOGE("%s: Unknown stream configuration mode %d", __FUNCTION__, operationMode);
+                return BAD_VALUE;
+        }
+    } else {
+        *mode = static_cast<StreamConfigurationMode>(operationMode);
+    }
+    return OK;
+}
+
+camera3_buffer_status_t Camera3Device::mapHidlBufferStatus(BufferStatus status) {
+    switch (status) {
+        case BufferStatus::OK: return CAMERA3_BUFFER_STATUS_OK;
+        case BufferStatus::ERROR: return CAMERA3_BUFFER_STATUS_ERROR;
+    }
+    return CAMERA3_BUFFER_STATUS_ERROR;
+}
+
+int Camera3Device::mapToFrameworkFormat(
+        hardware::graphics::common::V1_0::PixelFormat pixelFormat) {
+    return static_cast<uint32_t>(pixelFormat);
+}
+
+uint32_t Camera3Device::mapConsumerToFrameworkUsage(
+        BufferUsageFlags usage) {
+    return usage;
+}
+
+uint32_t Camera3Device::mapProducerToFrameworkUsage(
+        BufferUsageFlags usage) {
+    return usage;
 }
 
 ssize_t Camera3Device::getJpegBufferSize(uint32_t width, uint32_t height) const {
     // Get max jpeg size (area-wise).
     Size maxJpegResolution = getMaxJpegResolution();
     if (maxJpegResolution.width == 0) {
-        ALOGE("%s: Camera %d: Can't find valid available jpeg sizes in static metadata!",
-                __FUNCTION__, mId);
+        ALOGE("%s: Camera %s: Can't find valid available jpeg sizes in static metadata!",
+                __FUNCTION__, mId.string());
         return BAD_VALUE;
     }
 
@@ -460,7 +463,8 @@
     ssize_t maxJpegBufferSize = 0;
     camera_metadata_ro_entry jpegBufMaxSize = mDeviceInfo.find(ANDROID_JPEG_MAX_SIZE);
     if (jpegBufMaxSize.count == 0) {
-        ALOGE("%s: Camera %d: Can't find maximum JPEG size in static metadata!", __FUNCTION__, mId);
+        ALOGE("%s: Camera %s: Can't find maximum JPEG size in static metadata!", __FUNCTION__,
+                mId.string());
         return BAD_VALUE;
     }
     maxJpegBufferSize = jpegBufMaxSize.data.i32[0];
@@ -482,8 +486,8 @@
     const int FLOATS_PER_POINT=4;
     camera_metadata_ro_entry maxPointCount = mDeviceInfo.find(ANDROID_DEPTH_MAX_DEPTH_SAMPLES);
     if (maxPointCount.count == 0) {
-        ALOGE("%s: Camera %d: Can't find maximum depth point cloud size in static metadata!",
-                __FUNCTION__, mId);
+        ALOGE("%s: Camera %s: Can't find maximum depth point cloud size in static metadata!",
+                __FUNCTION__, mId.string());
         return BAD_VALUE;
     }
     ssize_t maxBytesForPointCloud = sizeof(android_depth_points) +
@@ -500,8 +504,8 @@
         mDeviceInfo.find(ANDROID_SENSOR_OPAQUE_RAW_SIZE);
     size_t count = rawOpaqueSizes.count;
     if (count == 0 || (count % PER_CONFIGURATION_SIZE)) {
-        ALOGE("%s: Camera %d: bad opaque RAW size static metadata length(%zu)!",
-                __FUNCTION__, mId, count);
+        ALOGE("%s: Camera %s: bad opaque RAW size static metadata length(%zu)!",
+                __FUNCTION__, mId.string(), count);
         return BAD_VALUE;
     }
 
@@ -512,8 +516,8 @@
         }
     }
 
-    ALOGE("%s: Camera %d: cannot find size for %dx%d opaque RAW image!",
-            __FUNCTION__, mId, width, height);
+    ALOGE("%s: Camera %s: cannot find size for %dx%d opaque RAW image!",
+            __FUNCTION__, mId.string(), width, height);
     return BAD_VALUE;
 }
 
@@ -527,11 +531,11 @@
     bool gotLock = tryLockSpinRightRound(mLock);
 
     ALOGW_IF(!gotInterfaceLock,
-            "Camera %d: %s: Unable to lock interface lock, proceeding anyway",
-            mId, __FUNCTION__);
+            "Camera %s: %s: Unable to lock interface lock, proceeding anyway",
+            mId.string(), __FUNCTION__);
     ALOGW_IF(!gotLock,
-            "Camera %d: %s: Unable to lock main lock, proceeding anyway",
-            mId, __FUNCTION__);
+            "Camera %s: %s: Unable to lock main lock, proceeding anyway",
+            mId.string(), __FUNCTION__);
 
     bool dumpTemplates = false;
 
@@ -571,8 +575,12 @@
         lines.appendFormat("    Error cause: %s\n", mErrorCause.string());
     }
     lines.appendFormat("    Stream configuration:\n");
-    lines.appendFormat("    Operation mode: %s \n", mIsConstrainedHighSpeedConfiguration ?
-            "CONSTRAINED HIGH SPEED VIDEO" : "NORMAL");
+    const char *mode =
+            mOperatingMode == static_cast<int>(StreamConfigurationMode::NORMAL_MODE) ? "NORMAL" :
+            mOperatingMode == static_cast<int>(
+                StreamConfigurationMode::CONSTRAINED_HIGH_SPEED_MODE) ? "CONSTRAINED_HIGH_SPEED" :
+            "CUSTOM";
+    lines.appendFormat("    Operation mode: %s (%d) \n", mode, mOperatingMode);
 
     if (mInputStream != NULL) {
         write(fd, lines.string(), lines.size());
@@ -605,6 +613,11 @@
     }
     write(fd, lines.string(), lines.size());
 
+    if (mRequestThread != NULL) {
+        mRequestThread->dumpCaptureRequestLatency(fd,
+                "    ProcessCaptureRequest latency histogram:");
+    }
+
     {
         lines = String8("    Last request sent:\n");
         write(fd, lines.string(), lines.size());
@@ -624,12 +637,11 @@
         };
 
         for (int i = 1; i < CAMERA3_TEMPLATE_COUNT; i++) {
-            const camera_metadata_t *templateRequest;
-            templateRequest =
-                mHal3Device->ops->construct_default_request_settings(
-                    mHal3Device, i);
+            camera_metadata_t *templateRequest = nullptr;
+            mInterface->constructDefaultRequestSettings(
+                    (camera3_request_template_t) i, &templateRequest);
             lines = String8::format("    HAL Request %s:\n", templateNames[i-1]);
-            if (templateRequest == NULL) {
+            if (templateRequest == nullptr) {
                 lines.append("       Not supported\n");
                 write(fd, lines.string(), lines.size());
             } else {
@@ -637,15 +649,16 @@
                 dump_indented_camera_metadata(templateRequest,
                         fd, /*verbosity*/2, /*indentation*/8);
             }
+            free_camera_metadata(templateRequest);
         }
     }
 
     mTagMonitor.dumpMonitoredMetadata(fd);
 
-    if (mHal3Device != NULL) {
-        lines = String8("    HAL device dump:\n");
+    if (mInterface->valid()) {
+        lines = String8("     HAL device dump:\n");
         write(fd, lines.string(), lines.size());
-        mHal3Device->ops->dump(mHal3Device, fd);
+        mInterface->dump(fd);
     }
 
     if (gotLock) mLock.unlock();
@@ -686,29 +699,36 @@
 }
 
 status_t Camera3Device::convertMetadataListToRequestListLocked(
-        const List<const CameraMetadata> &metadataList, RequestList *requestList) {
+        const List<const CameraMetadata> &metadataList,
+        const std::list<const SurfaceMap> &surfaceMaps,
+        bool repeating,
+        RequestList *requestList) {
     if (requestList == NULL) {
         CLOGE("requestList cannot be NULL.");
         return BAD_VALUE;
     }
 
     int32_t burstId = 0;
-    for (List<const CameraMetadata>::const_iterator it = metadataList.begin();
-            it != metadataList.end(); ++it) {
-        sp<CaptureRequest> newRequest = setUpRequestLocked(*it);
+    List<const CameraMetadata>::const_iterator metadataIt = metadataList.begin();
+    std::list<const SurfaceMap>::const_iterator surfaceMapIt = surfaceMaps.begin();
+    for (; metadataIt != metadataList.end() && surfaceMapIt != surfaceMaps.end();
+            ++metadataIt, ++surfaceMapIt) {
+        sp<CaptureRequest> newRequest = setUpRequestLocked(*metadataIt, *surfaceMapIt);
         if (newRequest == 0) {
             CLOGE("Can't create capture request");
             return BAD_VALUE;
         }
 
+        newRequest->mRepeating = repeating;
+
         // Setup burst Id and request Id
         newRequest->mResultExtras.burstId = burstId++;
-        if (it->exists(ANDROID_REQUEST_ID)) {
-            if (it->find(ANDROID_REQUEST_ID).count == 0) {
+        if (metadataIt->exists(ANDROID_REQUEST_ID)) {
+            if (metadataIt->find(ANDROID_REQUEST_ID).count == 0) {
                 CLOGE("RequestID entry exists; but must not be empty in metadata");
                 return BAD_VALUE;
             }
-            newRequest->mResultExtras.requestId = it->find(ANDROID_REQUEST_ID).data.i32[0];
+            newRequest->mResultExtras.requestId = metadataIt->find(ANDROID_REQUEST_ID).data.i32[0];
         } else {
             CLOGE("RequestID does not exist in metadata");
             return BAD_VALUE;
@@ -718,6 +738,10 @@
 
         ALOGV("%s: requestId = %" PRId32, __FUNCTION__, newRequest->mResultExtras.requestId);
     }
+    if (metadataIt != metadataList.end() || surfaceMapIt != surfaceMaps.end()) {
+        ALOGE("%s: metadataList and surfaceMaps are not the same size!", __FUNCTION__);
+        return BAD_VALUE;
+    }
 
     // Setup batch size if this is a high speed video recording request.
     if (mIsConstrainedHighSpeedConfiguration && requestList->size() > 0) {
@@ -737,12 +761,31 @@
     ATRACE_CALL();
 
     List<const CameraMetadata> requests;
+    std::list<const SurfaceMap> surfaceMaps;
+    convertToRequestList(requests, surfaceMaps, request);
+
+    return captureList(requests, surfaceMaps, /*lastFrameNumber*/NULL);
+}
+
+void Camera3Device::convertToRequestList(List<const CameraMetadata>& requests,
+        std::list<const SurfaceMap>& surfaceMaps,
+        const CameraMetadata& request) {
     requests.push_back(request);
-    return captureList(requests, /*lastFrameNumber*/NULL);
+
+    SurfaceMap surfaceMap;
+    camera_metadata_ro_entry streams = request.find(ANDROID_REQUEST_OUTPUT_STREAMS);
+    // With no surface list passed in, stream and surface will have 1-to-1
+    // mapping. So the surface index is 0 for each stream in the surfaceMap.
+    for (size_t i = 0; i < streams.count; i++) {
+        surfaceMap[streams.data.i32[i]].push_back(0);
+    }
+    surfaceMaps.push_back(surfaceMap);
 }
 
 status_t Camera3Device::submitRequestsHelper(
-        const List<const CameraMetadata> &requests, bool repeating,
+        const List<const CameraMetadata> &requests,
+        const std::list<const SurfaceMap> &surfaceMaps,
+        bool repeating,
         /*out*/
         int64_t *lastFrameNumber) {
     ATRACE_CALL();
@@ -757,7 +800,8 @@
 
     RequestList requestList;
 
-    res = convertMetadataListToRequestListLocked(requests, /*out*/&requestList);
+    res = convertMetadataListToRequestListLocked(requests, surfaceMaps,
+            repeating, /*out*/&requestList);
     if (res != OK) {
         // error logged by previous call
         return res;
@@ -775,7 +819,7 @@
             SET_ERR_L("Can't transition to active in %f seconds!",
                     kActiveTimeout/1e9);
         }
-        ALOGV("Camera %d: Capture request %" PRId32 " enqueued", mId,
+        ALOGV("Camera %s: Capture request %" PRId32 " enqueued", mId.string(),
               (*(requestList.begin()))->mResultExtras.requestId);
     } else {
         CLOGE("Cannot queue request. Impossible.");
@@ -785,11 +829,197 @@
     return res;
 }
 
+// Only one processCaptureResult should be called at a time, so
+// the locks won't block. The locks are present here simply to enforce this.
+hardware::Return<void> Camera3Device::processCaptureResult(
+        const hardware::hidl_vec<
+                hardware::camera::device::V3_2::CaptureResult>& results) {
+
+    if (mProcessCaptureResultLock.tryLock() != OK) {
+        // This should never happen; it indicates a wrong client implementation
+        // that doesn't follow the contract. But, we can be tolerant here.
+        ALOGE("%s: callback overlapped! waiting 1s...",
+                __FUNCTION__);
+        if (mProcessCaptureResultLock.timedLock(1000000000 /* 1s */) != OK) {
+            ALOGE("%s: cannot acquire lock in 1s, dropping results",
+                    __FUNCTION__);
+            // really don't know what to do, so bail out.
+            return hardware::Void();
+        }
+    }
+    for (const auto& result : results) {
+        processOneCaptureResultLocked(result);
+    }
+    mProcessCaptureResultLock.unlock();
+    return hardware::Void();
+}
+
+void Camera3Device::processOneCaptureResultLocked(
+        const hardware::camera::device::V3_2::CaptureResult& result) {
+    camera3_capture_result r;
+    status_t res;
+    r.frame_number = result.frameNumber;
+
+    hardware::camera::device::V3_2::CameraMetadata resultMetadata;
+    if (result.fmqResultSize > 0) {
+        resultMetadata.resize(result.fmqResultSize);
+        if (mResultMetadataQueue == nullptr) {
+            return; // logged in initialize()
+        }
+        if (!mResultMetadataQueue->read(resultMetadata.data(), result.fmqResultSize)) {
+            ALOGE("%s: Frame %d: Cannot read camera metadata from fmq, size = %" PRIu64,
+                    __FUNCTION__, result.frameNumber, result.fmqResultSize);
+            return;
+        }
+    } else {
+        resultMetadata.setToExternal(const_cast<uint8_t *>(result.result.data()),
+                result.result.size());
+    }
+
+    if (resultMetadata.size() != 0) {
+        r.result = reinterpret_cast<const camera_metadata_t*>(resultMetadata.data());
+        size_t expected_metadata_size = resultMetadata.size();
+        if ((res = validate_camera_metadata_structure(r.result, &expected_metadata_size)) != OK) {
+            ALOGE("%s: Frame %d: Invalid camera metadata received by camera service from HAL: %s (%d)",
+                    __FUNCTION__, result.frameNumber, strerror(-res), res);
+            return;
+        }
+    } else {
+        r.result = nullptr;
+    }
+
+    std::vector<camera3_stream_buffer_t> outputBuffers(result.outputBuffers.size());
+    std::vector<buffer_handle_t> outputBufferHandles(result.outputBuffers.size());
+    for (size_t i = 0; i < result.outputBuffers.size(); i++) {
+        auto& bDst = outputBuffers[i];
+        const StreamBuffer &bSrc = result.outputBuffers[i];
+
+        ssize_t idx = mOutputStreams.indexOfKey(bSrc.streamId);
+        if (idx == NAME_NOT_FOUND) {
+            ALOGE("%s: Frame %d: Buffer %zu: Invalid output stream id %d",
+                    __FUNCTION__, result.frameNumber, i, bSrc.streamId);
+            return;
+        }
+        bDst.stream = mOutputStreams.valueAt(idx)->asHalStream();
+
+        buffer_handle_t *buffer;
+        res = mInterface->popInflightBuffer(result.frameNumber, bSrc.streamId, &buffer);
+        if (res != OK) {
+            ALOGE("%s: Frame %d: Buffer %zu: No in-flight buffer for stream %d",
+                    __FUNCTION__, result.frameNumber, i, bSrc.streamId);
+            return;
+        }
+        bDst.buffer = buffer;
+        bDst.status = mapHidlBufferStatus(bSrc.status);
+        bDst.acquire_fence = -1;
+        if (bSrc.releaseFence == nullptr) {
+            bDst.release_fence = -1;
+        } else if (bSrc.releaseFence->numFds == 1) {
+            bDst.release_fence = dup(bSrc.releaseFence->data[0]);
+        } else {
+            ALOGE("%s: Frame %d: Invalid release fence for buffer %zu, fd count is %d, not 1",
+                    __FUNCTION__, result.frameNumber, i, bSrc.releaseFence->numFds);
+            return;
+        }
+    }
+    r.num_output_buffers = outputBuffers.size();
+    r.output_buffers = outputBuffers.data();
+
+    camera3_stream_buffer_t inputBuffer;
+    if (result.inputBuffer.streamId == -1) {
+        r.input_buffer = nullptr;
+    } else {
+        if (mInputStream->getId() != result.inputBuffer.streamId) {
+            ALOGE("%s: Frame %d: Invalid input stream id %d", __FUNCTION__,
+                    result.frameNumber, result.inputBuffer.streamId);
+            return;
+        }
+        inputBuffer.stream = mInputStream->asHalStream();
+        buffer_handle_t *buffer;
+        res = mInterface->popInflightBuffer(result.frameNumber, result.inputBuffer.streamId,
+                &buffer);
+        if (res != OK) {
+            ALOGE("%s: Frame %d: Input buffer: No in-flight buffer for stream %d",
+                    __FUNCTION__, result.frameNumber, result.inputBuffer.streamId);
+            return;
+        }
+        inputBuffer.buffer = buffer;
+        inputBuffer.status = mapHidlBufferStatus(result.inputBuffer.status);
+        inputBuffer.acquire_fence = -1;
+        if (result.inputBuffer.releaseFence == nullptr) {
+            inputBuffer.release_fence = -1;
+        } else if (result.inputBuffer.releaseFence->numFds == 1) {
+            inputBuffer.release_fence = dup(result.inputBuffer.releaseFence->data[0]);
+        } else {
+            ALOGE("%s: Frame %d: Invalid release fence for input buffer, fd count is %d, not 1",
+                    __FUNCTION__, result.frameNumber, result.inputBuffer.releaseFence->numFds);
+            return;
+        }
+        r.input_buffer = &inputBuffer;
+    }
+
+    r.partial_result = result.partialResult;
+
+    processCaptureResult(&r);
+}
+
+hardware::Return<void> Camera3Device::notify(
+        const hardware::hidl_vec<hardware::camera::device::V3_2::NotifyMsg>& msgs) {
+    for (const auto& msg : msgs) {
+        notify(msg);
+    }
+    return hardware::Void();
+}
+
+void Camera3Device::notify(
+        const hardware::camera::device::V3_2::NotifyMsg& msg) {
+
+    camera3_notify_msg m;
+    switch (msg.type) {
+        case MsgType::ERROR:
+            m.type = CAMERA3_MSG_ERROR;
+            m.message.error.frame_number = msg.msg.error.frameNumber;
+            if (msg.msg.error.errorStreamId >= 0) {
+                ssize_t idx = mOutputStreams.indexOfKey(msg.msg.error.errorStreamId);
+                if (idx == NAME_NOT_FOUND) {
+                    ALOGE("%s: Frame %d: Invalid error stream id %d",
+                            __FUNCTION__, m.message.error.frame_number, msg.msg.error.errorStreamId);
+                    return;
+                }
+                m.message.error.error_stream = mOutputStreams.valueAt(idx)->asHalStream();
+            } else {
+                m.message.error.error_stream = nullptr;
+            }
+            switch (msg.msg.error.errorCode) {
+                case ErrorCode::ERROR_DEVICE:
+                    m.message.error.error_code = CAMERA3_MSG_ERROR_DEVICE;
+                    break;
+                case ErrorCode::ERROR_REQUEST:
+                    m.message.error.error_code = CAMERA3_MSG_ERROR_REQUEST;
+                    break;
+                case ErrorCode::ERROR_RESULT:
+                    m.message.error.error_code = CAMERA3_MSG_ERROR_RESULT;
+                    break;
+                case ErrorCode::ERROR_BUFFER:
+                    m.message.error.error_code = CAMERA3_MSG_ERROR_BUFFER;
+                    break;
+            }
+            break;
+        case MsgType::SHUTTER:
+            m.type = CAMERA3_MSG_SHUTTER;
+            m.message.shutter.frame_number = msg.msg.shutter.frameNumber;
+            m.message.shutter.timestamp = msg.msg.shutter.timestamp;
+            break;
+    }
+    notify(&m);
+}
+
 status_t Camera3Device::captureList(const List<const CameraMetadata> &requests,
+                                    const std::list<const SurfaceMap> &surfaceMaps,
                                     int64_t *lastFrameNumber) {
     ATRACE_CALL();
 
-    return submitRequestsHelper(requests, /*repeating*/false, lastFrameNumber);
+    return submitRequestsHelper(requests, surfaceMaps, /*repeating*/false, lastFrameNumber);
 }
 
 status_t Camera3Device::setStreamingRequest(const CameraMetadata &request,
@@ -797,23 +1027,29 @@
     ATRACE_CALL();
 
     List<const CameraMetadata> requests;
-    requests.push_back(request);
-    return setStreamingRequestList(requests, /*lastFrameNumber*/NULL);
+    std::list<const SurfaceMap> surfaceMaps;
+    convertToRequestList(requests, surfaceMaps, request);
+
+    return setStreamingRequestList(requests, /*surfaceMap*/surfaceMaps,
+                                   /*lastFrameNumber*/NULL);
 }
 
 status_t Camera3Device::setStreamingRequestList(const List<const CameraMetadata> &requests,
+                                                const std::list<const SurfaceMap> &surfaceMaps,
                                                 int64_t *lastFrameNumber) {
     ATRACE_CALL();
 
-    return submitRequestsHelper(requests, /*repeating*/true, lastFrameNumber);
+    return submitRequestsHelper(requests, surfaceMaps, /*repeating*/true, lastFrameNumber);
 }
 
 sp<Camera3Device::CaptureRequest> Camera3Device::setUpRequestLocked(
-        const CameraMetadata &request) {
+        const CameraMetadata &request, const SurfaceMap &surfaceMap) {
     status_t res;
 
     if (mStatus == STATUS_UNCONFIGURED || mNeedConfig) {
-        res = configureStreamsLocked();
+        // This point should only be reached via API1 (API2 must explicitly call configureStreams)
+        // so unilaterally select normal operating mode.
+        res = configureStreamsLocked(CAMERA3_STREAM_CONFIGURATION_NORMAL_MODE);
         // Stream configuration failed. Client might try other configuraitons.
         if (res != OK) {
             CLOGE("Can't set up streams: %s (%d)", strerror(-res), res);
@@ -825,7 +1061,7 @@
         }
     }
 
-    sp<CaptureRequest> newRequest = createCaptureRequest(request);
+    sp<CaptureRequest> newRequest = createCaptureRequest(request, surfaceMap);
     return newRequest;
 }
 
@@ -850,7 +1086,7 @@
             SET_ERR_L("Unexpected status: %d", mStatus);
             return INVALID_OPERATION;
     }
-    ALOGV("Camera %d: Clearing repeating request", mId);
+    ALOGV("Camera %s: Clearing repeating request", mId.string());
 
     return mRequestThread->clearRepeatingRequests(lastFrameNumber);
 }
@@ -867,8 +1103,8 @@
     ATRACE_CALL();
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
-    ALOGV("Camera %d: Creating new input stream %d: %d x %d, format %d",
-            mId, mNextStreamId, width, height, format);
+    ALOGV("Camera %s: Creating new input stream %d: %d x %d, format %d",
+            mId.string(), mNextStreamId, width, height, format);
 
     status_t res;
     bool wasActive = false;
@@ -915,7 +1151,8 @@
     // Continue captures if active at start
     if (wasActive) {
         ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
-        res = configureStreamsLocked();
+        // Reuse current operating mode for new stream config
+        res = configureStreamsLocked(mOperatingMode);
         if (res != OK) {
             ALOGE("%s: Can't reconfigure device for new stream %d: %s (%d)",
                     __FUNCTION__, mNextStreamId, strerror(-res), res);
@@ -924,99 +1161,38 @@
         internalResumeLocked();
     }
 
-    ALOGV("Camera %d: Created input stream", mId);
-    return OK;
-}
-
-
-status_t Camera3Device::createZslStream(
-            uint32_t width, uint32_t height,
-            int depth,
-            /*out*/
-            int *id,
-            sp<Camera3ZslStream>* zslStream) {
-    ATRACE_CALL();
-    Mutex::Autolock il(mInterfaceLock);
-    Mutex::Autolock l(mLock);
-    ALOGV("Camera %d: Creating ZSL stream %d: %d x %d, depth %d",
-            mId, mNextStreamId, width, height, depth);
-
-    status_t res;
-    bool wasActive = false;
-
-    switch (mStatus) {
-        case STATUS_ERROR:
-            ALOGE("%s: Device has encountered a serious error", __FUNCTION__);
-            return INVALID_OPERATION;
-        case STATUS_UNINITIALIZED:
-            ALOGE("%s: Device not initialized", __FUNCTION__);
-            return INVALID_OPERATION;
-        case STATUS_UNCONFIGURED:
-        case STATUS_CONFIGURED:
-            // OK
-            break;
-        case STATUS_ACTIVE:
-            ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
-            res = internalPauseAndWaitLocked();
-            if (res != OK) {
-                SET_ERR_L("Can't pause captures to reconfigure streams!");
-                return res;
-            }
-            wasActive = true;
-            break;
-        default:
-            SET_ERR_L("Unexpected status: %d", mStatus);
-            return INVALID_OPERATION;
-    }
-    assert(mStatus != STATUS_ACTIVE);
-
-    if (mInputStream != 0) {
-        ALOGE("%s: Cannot create more than 1 input stream", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
-
-    sp<Camera3ZslStream> newStream = new Camera3ZslStream(mNextStreamId,
-                width, height, depth);
-    newStream->setStatusTracker(mStatusTracker);
-
-    res = mOutputStreams.add(mNextStreamId, newStream);
-    if (res < 0) {
-        ALOGE("%s: Can't add new stream to set: %s (%d)",
-                __FUNCTION__, strerror(-res), res);
-        return res;
-    }
-    mInputStream = newStream;
-
-    mNeedConfig = true;
-
-    *id = mNextStreamId++;
-    *zslStream = newStream;
-
-    // Continue captures if active at start
-    if (wasActive) {
-        ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
-        res = configureStreamsLocked();
-        if (res != OK) {
-            ALOGE("%s: Can't reconfigure device for new stream %d: %s (%d)",
-                    __FUNCTION__, mNextStreamId, strerror(-res), res);
-            return res;
-        }
-        internalResumeLocked();
-    }
-
-    ALOGV("Camera %d: Created ZSL stream", mId);
+    ALOGV("Camera %s: Created input stream", mId.string());
     return OK;
 }
 
 status_t Camera3Device::createStream(sp<Surface> consumer,
-        uint32_t width, uint32_t height, int format, android_dataspace dataSpace,
-        camera3_stream_rotation_t rotation, int *id, int streamSetId, uint32_t consumerUsage) {
+            uint32_t width, uint32_t height, int format,
+            android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
+            int streamSetId, bool isShared, uint32_t consumerUsage) {
+    ATRACE_CALL();
+
+    if (consumer == nullptr) {
+        ALOGE("%s: consumer must not be null", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    std::vector<sp<Surface>> consumers;
+    consumers.push_back(consumer);
+
+    return createStream(consumers, /*hasDeferredConsumer*/ false, width, height,
+            format, dataSpace, rotation, id, streamSetId, isShared, consumerUsage);
+}
+
+status_t Camera3Device::createStream(const std::vector<sp<Surface>>& consumers,
+        bool hasDeferredConsumer, uint32_t width, uint32_t height, int format,
+        android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
+        int streamSetId, bool isShared, uint32_t consumerUsage) {
     ATRACE_CALL();
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
-    ALOGV("Camera %d: Creating new stream %d: %d x %d, format %d, dataspace %d rotation %d"
-            " consumer usage 0x%x", mId, mNextStreamId, width, height, format, dataSpace, rotation,
-            consumerUsage);
+    ALOGV("Camera %s: Creating new stream %d: %d x %d, format %d, dataspace %d rotation %d"
+            " consumer usage 0x%x, isShared %d", mId.string(), mNextStreamId, width, height, format,
+            dataSpace, rotation, consumerUsage, isShared);
 
     status_t res;
     bool wasActive = false;
@@ -1048,28 +1224,17 @@
     assert(mStatus != STATUS_ACTIVE);
 
     sp<Camera3OutputStream> newStream;
-    // Overwrite stream set id to invalid for HAL3.2 or lower, as buffer manager does support
-    // such devices.
-    if (mDeviceVersion <= CAMERA_DEVICE_API_VERSION_3_2) {
-        streamSetId = CAMERA3_STREAM_SET_ID_INVALID;
-    }
 
-    // HAL3.1 doesn't support deferred consumer stream creation as it requires buffer registration
-    // which requires a consumer surface to be available.
-    if (consumer == nullptr && mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_2) {
-        ALOGE("HAL3.1 doesn't support deferred consumer stream creation");
+    if (consumers.size() == 0 && !hasDeferredConsumer) {
+        ALOGE("%s: Number of consumers cannot be smaller than 1", __FUNCTION__);
         return BAD_VALUE;
     }
 
-    if (consumer == nullptr && format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) {
+    if (hasDeferredConsumer && format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) {
         ALOGE("Deferred consumer stream creation only support IMPLEMENTATION_DEFINED format");
         return BAD_VALUE;
     }
 
-    // Use legacy dataspace values for older HALs
-    if (mDeviceVersion <= CAMERA_DEVICE_API_VERSION_3_3) {
-        dataSpace = mapToLegacyDataspace(dataSpace);
-    }
     if (format == HAL_PIXEL_FORMAT_BLOB) {
         ssize_t blobBufferSize;
         if (dataSpace != HAL_DATASPACE_DEPTH) {
@@ -1085,7 +1250,7 @@
                 return BAD_VALUE;
             }
         }
-        newStream = new Camera3OutputStream(mNextStreamId, consumer,
+        newStream = new Camera3OutputStream(mNextStreamId, consumers[0],
                 width, height, blobBufferSize, format, dataSpace, rotation,
                 mTimestampOffset, streamSetId);
     } else if (format == HAL_PIXEL_FORMAT_RAW_OPAQUE) {
@@ -1094,29 +1259,25 @@
             SET_ERR_L("Invalid RAW opaque buffer size %zd", rawOpaqueBufferSize);
             return BAD_VALUE;
         }
-        newStream = new Camera3OutputStream(mNextStreamId, consumer,
+        newStream = new Camera3OutputStream(mNextStreamId, consumers[0],
                 width, height, rawOpaqueBufferSize, format, dataSpace, rotation,
                 mTimestampOffset, streamSetId);
-    } else if (consumer == nullptr) {
+    } else if (isShared) {
+        newStream = new Camera3SharedOutputStream(mNextStreamId, consumers,
+                width, height, format, consumerUsage, dataSpace, rotation,
+                mTimestampOffset, streamSetId);
+    } else if (consumers.size() == 0 && hasDeferredConsumer) {
         newStream = new Camera3OutputStream(mNextStreamId,
                 width, height, format, consumerUsage, dataSpace, rotation,
                 mTimestampOffset, streamSetId);
     } else {
-        newStream = new Camera3OutputStream(mNextStreamId, consumer,
+        newStream = new Camera3OutputStream(mNextStreamId, consumers[0],
                 width, height, format, dataSpace, rotation,
                 mTimestampOffset, streamSetId);
     }
     newStream->setStatusTracker(mStatusTracker);
 
-    /**
-     * Camera3 Buffer manager is only supported by HAL3.3 onwards, as the older HALs ( < HAL3.2)
-     * requires buffers to be statically allocated for internal static buffer registration, while
-     * the buffers provided by buffer manager are really dynamically allocated. For HAL3.2, because
-     * not all HAL implementation supports dynamic buffer registeration, exlude it as well.
-     */
-    if (mDeviceVersion > CAMERA_DEVICE_API_VERSION_3_2) {
-        newStream->setBufferManager(mBufferManager);
-    }
+    newStream->setBufferManager(mBufferManager);
 
     res = mOutputStreams.add(mNextStreamId, newStream);
     if (res < 0) {
@@ -1130,7 +1291,8 @@
     // Continue captures if active at start
     if (wasActive) {
         ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
-        res = configureStreamsLocked();
+        // Reuse current operating mode for new stream config
+        res = configureStreamsLocked(mOperatingMode);
         if (res != OK) {
             CLOGE("Can't reconfigure device for new stream %d: %s (%d)",
                     mNextStreamId, strerror(-res), res);
@@ -1138,19 +1300,10 @@
         }
         internalResumeLocked();
     }
-    ALOGV("Camera %d: Created new stream", mId);
+    ALOGV("Camera %s: Created new stream", mId.string());
     return OK;
 }
 
-status_t Camera3Device::createReprocessStreamFromStream(int outputId, int *id) {
-    ATRACE_CALL();
-    (void)outputId; (void)id;
-
-    CLOGE("Unimplemented");
-    return INVALID_OPERATION;
-}
-
-
 status_t Camera3Device::getStreamInfo(int id,
         uint32_t *width, uint32_t *height,
         uint32_t *format, android_dataspace *dataSpace) {
@@ -1227,12 +1380,12 @@
     Mutex::Autolock l(mLock);
     status_t res;
 
-    ALOGV("%s: Camera %d: Deleting stream %d", __FUNCTION__, mId, id);
+    ALOGV("%s: Camera %s: Deleting stream %d", __FUNCTION__, mId.string(), id);
 
     // CameraDevice semantics require device to already be idle before
     // deleteStream is called, unlike for createStream.
     if (mStatus == STATUS_ACTIVE) {
-        ALOGV("%s: Camera %d: Device not idle", __FUNCTION__, mId);
+        ALOGV("%s: Camera %s: Device not idle", __FUNCTION__, mId.string());
         return -EBUSY;
     }
 
@@ -1266,27 +1419,14 @@
     return res;
 }
 
-status_t Camera3Device::deleteReprocessStream(int id) {
-    ATRACE_CALL();
-    (void)id;
-
-    CLOGE("Unimplemented");
-    return INVALID_OPERATION;
-}
-
-status_t Camera3Device::configureStreams(bool isConstrainedHighSpeed) {
+status_t Camera3Device::configureStreams(int operatingMode) {
     ATRACE_CALL();
     ALOGV("%s: E", __FUNCTION__);
 
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
-    if (mIsConstrainedHighSpeedConfiguration != isConstrainedHighSpeed) {
-        mNeedConfig = true;
-        mIsConstrainedHighSpeedConfiguration = isConstrainedHighSpeed;
-    }
-
-    return configureStreamsLocked();
+    return configureStreamsLocked(operatingMode);
 }
 
 status_t Camera3Device::getInputBufferProducer(
@@ -1339,27 +1479,21 @@
         return OK;
     }
 
-    const camera_metadata_t *rawRequest;
-    ATRACE_BEGIN("camera3->construct_default_request_settings");
-    rawRequest = mHal3Device->ops->construct_default_request_settings(
-        mHal3Device, templateId);
-    ATRACE_END();
-    if (rawRequest == NULL) {
+    camera_metadata_t *rawRequest;
+    status_t res = mInterface->constructDefaultRequestSettings(
+            (camera3_request_template_t) templateId, &rawRequest);
+    if (res == BAD_VALUE) {
         ALOGI("%s: template %d is not supported on this camera device",
               __FUNCTION__, templateId);
-        return BAD_VALUE;
+        return res;
+    } else if (res != OK) {
+        CLOGE("Unable to construct request template %d: %s (%d)",
+                templateId, strerror(-res), res);
+        return res;
     }
 
-    mRequestTemplateCache[templateId] = rawRequest;
-
-    // Derive some new keys for backward compatibility
-    if (mDerivePostRawSensKey && !mRequestTemplateCache[templateId].exists(
-            ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST)) {
-        int32_t defaultBoost[1] = {100};
-        mRequestTemplateCache[templateId].update(
-                ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST,
-                defaultBoost, 1);
-    }
+    set_camera_metadata_vendor_id(rawRequest, mVendorTagId);
+    mRequestTemplateCache[templateId].acquire(rawRequest);
 
     *request = mRequestTemplateCache[templateId];
     return OK;
@@ -1390,7 +1524,7 @@
             return INVALID_OPERATION;
     }
 
-    ALOGV("%s: Camera %d: Waiting until idle", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Waiting until idle", __FUNCTION__, mId.string());
     status_t res = waitUntilStateThenRelock(/*active*/ false, kShutdownTimeout);
     if (res != OK) {
         SET_ERR_L("Error waiting for HAL to drain: %s (%d)", strerror(-res),
@@ -1411,7 +1545,7 @@
     mRequestThread->setPaused(true);
     mPauseStateNotify = true;
 
-    ALOGV("%s: Camera %d: Internal wait until idle", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Internal wait until idle", __FUNCTION__, mId.string());
     status_t res = waitUntilStateThenRelock(/*active*/ false, kShutdownTimeout);
     if (res != OK) {
         SET_ERR_L("Can't idle device in %f seconds!",
@@ -1510,8 +1644,8 @@
         if (res == TIMED_OUT) {
             return res;
         } else if (res != OK) {
-            ALOGW("%s: Camera %d: No frame in %" PRId64 " ns: %s (%d)",
-                    __FUNCTION__, mId, timeout, strerror(-res), res);
+            ALOGW("%s: Camera %s: No frame in %" PRId64 " ns: %s (%d)",
+                    __FUNCTION__, mId.string(), timeout, strerror(-res), res);
             return res;
         }
     }
@@ -1602,18 +1736,9 @@
                                         sizeof(trigger)/sizeof(trigger[0]));
 }
 
-status_t Camera3Device::pushReprocessBuffer(int reprocessStreamId,
-        buffer_handle_t *buffer, wp<BufferReleasedListener> listener) {
-    ATRACE_CALL();
-    (void)reprocessStreamId; (void)buffer; (void)listener;
-
-    CLOGE("Unimplemented");
-    return INVALID_OPERATION;
-}
-
 status_t Camera3Device::flush(int64_t *frameNumber) {
     ATRACE_CALL();
-    ALOGV("%s: Camera %d: Flushing all requests", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Flushing all requests", __FUNCTION__, mId.string());
     Mutex::Autolock il(mInterfaceLock);
 
     {
@@ -1621,15 +1746,7 @@
         mRequestThread->clear(/*out*/frameNumber);
     }
 
-    status_t res;
-    if (mHal3Device->common.version >= CAMERA_DEVICE_API_VERSION_3_1) {
-        res = mRequestThread->flush();
-    } else {
-        Mutex::Autolock l(mLock);
-        res = waitUntilDrainedLocked();
-    }
-
-    return res;
+    return mRequestThread->flush();
 }
 
 status_t Camera3Device::prepare(int streamId) {
@@ -1638,7 +1755,7 @@
 
 status_t Camera3Device::prepare(int maxCount, int streamId) {
     ATRACE_CALL();
-    ALOGV("%s: Camera %d: Preparing stream %d", __FUNCTION__, mId, streamId);
+    ALOGV("%s: Camera %s: Preparing stream %d", __FUNCTION__, mId.string(), streamId);
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
@@ -1666,18 +1783,10 @@
 
 status_t Camera3Device::tearDown(int streamId) {
     ATRACE_CALL();
-    ALOGV("%s: Camera %d: Tearing down stream %d", __FUNCTION__, mId, streamId);
+    ALOGV("%s: Camera %s: Tearing down stream %d", __FUNCTION__, mId.string(), streamId);
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
-    // Teardown can only be accomplished on devices that don't require register_stream_buffers,
-    // since we cannot call register_stream_buffers except right after configure_streams.
-    if (mHal3Device->common.version < CAMERA_DEVICE_API_VERSION_3_2) {
-        ALOGE("%s: Unable to tear down streams on device HAL v%x",
-                __FUNCTION__, mHal3Device->common.version);
-        return NO_INIT;
-    }
-
     sp<Camera3StreamInterface> stream;
     ssize_t outputStreamIdx = mOutputStreams.indexOfKey(streamId);
     if (outputStreamIdx == NAME_NOT_FOUND) {
@@ -1698,7 +1807,7 @@
 status_t Camera3Device::addBufferListenerForStream(int streamId,
         wp<Camera3StreamBufferListener> listener) {
     ATRACE_CALL();
-    ALOGV("%s: Camera %d: Adding buffer listener for stream %d", __FUNCTION__, mId, streamId);
+    ALOGV("%s: Camera %s: Adding buffer listener for stream %d", __FUNCTION__, mId.string(), streamId);
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
@@ -1715,12 +1824,6 @@
     return OK;
 }
 
-uint32_t Camera3Device::getDeviceVersion() {
-    ATRACE_CALL();
-    Mutex::Autolock il(mInterfaceLock);
-    return mDeviceVersion;
-}
-
 /**
  * Methods called by subclasses
  */
@@ -1736,7 +1839,7 @@
         if (mStatus != STATUS_ACTIVE && mStatus != STATUS_CONFIGURED) {
             return;
         }
-        ALOGV("%s: Camera %d: Now %s", __FUNCTION__, mId,
+        ALOGV("%s: Camera %s: Now %s", __FUNCTION__, mId.string(),
                 idle ? "idle" : "active");
         internalUpdateStatusLocked(idle ? STATUS_CONFIGURED : STATUS_ACTIVE);
 
@@ -1755,14 +1858,16 @@
     }
 }
 
-status_t Camera3Device::setConsumerSurface(int streamId, sp<Surface> consumer) {
+status_t Camera3Device::setConsumerSurfaces(int streamId,
+        const std::vector<sp<Surface>>& consumers) {
     ATRACE_CALL();
-    ALOGV("%s: Camera %d: set consumer surface for stream %d", __FUNCTION__, mId, streamId);
+    ALOGV("%s: Camera %s: set consumer surface for stream %d",
+            __FUNCTION__, mId.string(), streamId);
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
-    if (consumer == nullptr) {
-        CLOGE("Null consumer is passed!");
+    if (consumers.size() == 0) {
+        CLOGE("No consumer is passed!");
         return BAD_VALUE;
     }
 
@@ -1772,22 +1877,24 @@
         return idx;
     }
     sp<Camera3OutputStreamInterface> stream = mOutputStreams[idx];
-    status_t res = stream->setConsumer(consumer);
+    status_t res = stream->setConsumers(consumers);
     if (res != OK) {
         CLOGE("Stream %d set consumer failed (error %d %s) ", streamId, res, strerror(-res));
         return res;
     }
 
-    if (!stream->isConfiguring()) {
-        CLOGE("Stream %d was already fully configured.", streamId);
-        return INVALID_OPERATION;
-    }
+    if (stream->isConsumerConfigurationDeferred()) {
+        if (!stream->isConfiguring()) {
+            CLOGE("Stream %d was already fully configured.", streamId);
+            return INVALID_OPERATION;
+        }
 
-    res = stream->finishConfiguration(mHal3Device);
-    if (res != OK) {
-        SET_ERR_L("Can't finish configuring output stream %d: %s (%d)",
-                stream->getId(), strerror(-res), res);
-        return res;
+        res = stream->finishConfiguration();
+        if (res != OK) {
+            SET_ERR_L("Can't finish configuring output stream %d: %s (%d)",
+                   stream->getId(), strerror(-res), res);
+            return res;
+        }
     }
 
     return OK;
@@ -1798,7 +1905,7 @@
  */
 
 sp<Camera3Device::CaptureRequest> Camera3Device::createCaptureRequest(
-        const CameraMetadata &request) {
+        const CameraMetadata &request, const SurfaceMap &surfaceMap) {
     ATRACE_CALL();
     status_t res;
 
@@ -1817,7 +1924,7 @@
         // Lazy completion of stream configuration (allocation/registration)
         // on first use
         if (mInputStream->isConfiguring()) {
-            res = mInputStream->finishConfiguration(mHal3Device);
+            res = mInputStream->finishConfiguration();
             if (res != OK) {
                 SET_ERR_L("Unable to finish configuring input stream %d:"
                         " %s (%d)",
@@ -1853,16 +1960,23 @@
                 mOutputStreams.editValueAt(idx);
 
         // It is illegal to include a deferred consumer output stream into a request
-        if (stream->isConsumerConfigurationDeferred()) {
-            CLOGE("Stream %d hasn't finished configuration yet due to deferred consumer",
-                    stream->getId());
-            return NULL;
+        auto iter = surfaceMap.find(streams.data.i32[i]);
+        if (iter != surfaceMap.end()) {
+            const std::vector<size_t>& surfaces = iter->second;
+            for (const auto& surface : surfaces) {
+                if (stream->isConsumerConfigurationDeferred(surface)) {
+                    CLOGE("Stream %d surface %zu hasn't finished configuration yet "
+                          "due to deferred consumer", stream->getId(), surface);
+                    return NULL;
+                }
+            }
+            newRequest->mOutputSurfaces[i] = surfaces;
         }
 
         // Lazy completion of stream configuration (allocation/registration)
         // on first use
         if (stream->isConfiguring()) {
-            res = stream->finishConfiguration(mHal3Device);
+            res = stream->finishConfiguration();
             if (res != OK) {
                 SET_ERR_L("Unable to finish configuring stream %d: %s (%d)",
                         stream->getId(), strerror(-res), res);
@@ -1921,7 +2035,7 @@
     mNeedConfig = true;
 }
 
-status_t Camera3Device::configureStreamsLocked() {
+status_t Camera3Device::configureStreamsLocked(int operatingMode) {
     ATRACE_CALL();
     status_t res;
 
@@ -1930,6 +2044,21 @@
         return INVALID_OPERATION;
     }
 
+    if (operatingMode < 0) {
+        CLOGE("Invalid operating mode: %d", operatingMode);
+        return BAD_VALUE;
+    }
+
+    bool isConstrainedHighSpeed =
+            static_cast<int>(StreamConfigurationMode::CONSTRAINED_HIGH_SPEED_MODE) ==
+            operatingMode;
+
+    if (mOperatingMode != operatingMode) {
+        mNeedConfig = true;
+        mIsConstrainedHighSpeedConfiguration = isConstrainedHighSpeed;
+        mOperatingMode = operatingMode;
+    }
+
     if (!mNeedConfig) {
         ALOGV("%s: Skipping config, no stream changes", __FUNCTION__);
         return OK;
@@ -1945,12 +2074,10 @@
     }
 
     // Start configuring the streams
-    ALOGV("%s: Camera %d: Starting stream configuration", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Starting stream configuration", __FUNCTION__, mId.string());
 
     camera3_stream_configuration config;
-    config.operation_mode = mIsConstrainedHighSpeedConfiguration ?
-            CAMERA3_STREAM_CONFIGURATION_CONSTRAINED_HIGH_SPEED_MODE :
-            CAMERA3_STREAM_CONFIGURATION_NORMAL_MODE;
+    config.operation_mode = mOperatingMode;
     config.num_streams = (mInputStream != NULL) + mOutputStreams.size();
 
     Vector<camera3_stream_t*> streams;
@@ -1991,9 +2118,8 @@
 
     // Do the HAL configuration; will potentially touch stream
     // max_buffers, usage, priv fields.
-    ATRACE_BEGIN("camera3->configure_streams");
-    res = mHal3Device->ops->configure_streams(mHal3Device, &config);
-    ATRACE_END();
+
+    res = mInterface->configureStreams(&config);
 
     if (res == BAD_VALUE) {
         // HAL rejected this set of streams as unsupported, clean up config
@@ -2014,7 +2140,7 @@
     // faster
 
     if (mInputStream != NULL && mInputStream->isConfiguring()) {
-        res = mInputStream->finishConfiguration(mHal3Device);
+        res = mInputStream->finishConfiguration();
         if (res != OK) {
             CLOGE("Can't finish configuring input stream %d: %s (%d)",
                     mInputStream->getId(), strerror(-res), res);
@@ -2027,7 +2153,7 @@
         sp<Camera3OutputStreamInterface> outputStream =
             mOutputStreams.editValueAt(i);
         if (outputStream->isConfiguring() && !outputStream->isConsumerConfigurationDeferred()) {
-            res = outputStream->finishConfiguration(mHal3Device);
+            res = outputStream->finishConfiguration();
             if (res != OK) {
                 CLOGE("Can't finish configuring output stream %d: %s (%d)",
                         outputStream->getId(), strerror(-res), res);
@@ -2048,7 +2174,7 @@
         // Boost priority of request thread to SCHED_FIFO.
         pid_t requestThreadTid = mRequestThread->getTid();
         res = requestPriority(getpid(), requestThreadTid,
-                kRequestThreadPriority, /*asynchronous*/ false);
+                kRequestThreadPriority, /*isForApp*/ false, /*asynchronous*/ false);
         if (res != OK) {
             ALOGW("Can't set realtime priority for request processing thread: %s (%d)",
                     strerror(-res), res);
@@ -2064,7 +2190,7 @@
     internalUpdateStatusLocked((mDummyStreamId == NO_STREAM) ?
             STATUS_CONFIGURED : STATUS_UNCONFIGURED);
 
-    ALOGV("%s: Camera %d: Stream configuration complete", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Stream configuration complete", __FUNCTION__, mId.string());
 
     // tear down the deleted streams after configure streams.
     mDeletedStreams.clear();
@@ -2079,12 +2205,12 @@
     if (mDummyStreamId != NO_STREAM) {
         // Should never be adding a second dummy stream when one is already
         // active
-        SET_ERR_L("%s: Camera %d: A dummy stream already exists!",
-                __FUNCTION__, mId);
+        SET_ERR_L("%s: Camera %s: A dummy stream already exists!",
+                __FUNCTION__, mId.string());
         return INVALID_OPERATION;
     }
 
-    ALOGV("%s: Camera %d: Adding a dummy stream", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Adding a dummy stream", __FUNCTION__, mId.string());
 
     sp<Camera3OutputStreamInterface> dummyStream =
             new Camera3DummyStream(mNextStreamId);
@@ -2108,7 +2234,7 @@
     if (mDummyStreamId == NO_STREAM) return OK;
     if (mOutputStreams.size() == 1) return OK;
 
-    ALOGV("%s: Camera %d: Removing the dummy stream", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Removing the dummy stream", __FUNCTION__, mId.string());
 
     // Ok, have a dummy stream and there's at least one other output stream,
     // so remove the dummy
@@ -2162,7 +2288,7 @@
 void Camera3Device::setErrorStateLockedV(const char *fmt, va_list args) {
     // Print out all error messages to log
     String8 errorCause = String8::formatV(fmt, args);
-    ALOGE("Camera %d: %s", mId, errorCause.string());
+    ALOGE("Camera %s: %s", mId.string(), errorCause.string());
 
     // But only do error state transition steps for the first error
     if (mStatus == STATUS_ERROR || mStatus == STATUS_UNINITIALIZED) return;
@@ -2190,13 +2316,13 @@
 
 status_t Camera3Device::registerInFlight(uint32_t frameNumber,
         int32_t numBuffers, CaptureResultExtras resultExtras, bool hasInput,
-        const AeTriggerCancelOverride_t &aeTriggerCancelOverride) {
+        bool hasAppCallback) {
     ATRACE_CALL();
     Mutex::Autolock l(mInFlightLock);
 
     ssize_t res;
     res = mInFlightMap.add(frameNumber, InFlightRequest(numBuffers, resultExtras, hasInput,
-            aeTriggerCancelOverride));
+            hasAppCallback));
     if (res < 0) return res;
 
     if (mInFlightMap.size() == 1) {
@@ -2250,8 +2376,9 @@
             (request.haveResultMetadata && shutterTimestamp != 0))) {
         ATRACE_ASYNC_END("frame capture", frameNumber);
 
-        // Sanity check - if sensor timestamp matches shutter timestamp
-        if (request.requestStatus == OK &&
+        // Sanity check - if sensor timestamp matches shutter timestamp in the
+        // case of request having callback.
+        if (request.hasCallback && request.requestStatus == OK &&
                 sensorTimestamp != shutterTimestamp) {
             SET_ERR("sensor timestamp (%" PRId64
                 ") for frame %d doesn't match shutter timestamp (%" PRId64 ")",
@@ -2280,10 +2407,15 @@
     }
 }
 
-void Camera3Device::insertResultLocked(CaptureResult *result, uint32_t frameNumber,
-            const AeTriggerCancelOverride_t &aeTriggerCancelOverride) {
+void Camera3Device::insertResultLocked(CaptureResult *result,
+        uint32_t frameNumber) {
     if (result == nullptr) return;
 
+    camera_metadata_t *meta = const_cast<camera_metadata_t *>(
+            result->mMetadata.getAndLock());
+    set_camera_metadata_vendor_id(meta, mVendorTagId);
+    result->mMetadata.unlock(meta);
+
     if (result->mMetadata.update(ANDROID_REQUEST_FRAME_COUNT,
             (int32_t*)&frameNumber, 1) != OK) {
         SET_ERR("Failed to set frame number %d in metadata", frameNumber);
@@ -2295,8 +2427,6 @@
         return;
     }
 
-    overrideResultForPrecaptureCancel(&result->mMetadata, aeTriggerCancelOverride);
-
     // Valid result, insert into queue
     List<CaptureResult>::iterator queuedResult =
             mResultQueue.insert(mResultQueue.end(), CaptureResult(*result));
@@ -2311,15 +2441,14 @@
 
 
 void Camera3Device::sendPartialCaptureResult(const camera_metadata_t * partialResult,
-        const CaptureResultExtras &resultExtras, uint32_t frameNumber,
-        const AeTriggerCancelOverride_t &aeTriggerCancelOverride) {
+        const CaptureResultExtras &resultExtras, uint32_t frameNumber) {
     Mutex::Autolock l(mOutputLock);
 
     CaptureResult captureResult;
     captureResult.mResultExtras = resultExtras;
     captureResult.mMetadata = partialResult;
 
-    insertResultLocked(&captureResult, frameNumber, aeTriggerCancelOverride);
+    insertResultLocked(&captureResult, frameNumber);
 }
 
 
@@ -2327,8 +2456,7 @@
         CaptureResultExtras &resultExtras,
         CameraMetadata &collectedPartialResult,
         uint32_t frameNumber,
-        bool reprocess,
-        const AeTriggerCancelOverride_t &aeTriggerCancelOverride) {
+        bool reprocess) {
     if (pendingMetadata.isEmpty())
         return;
 
@@ -2362,15 +2490,6 @@
         captureResult.mMetadata.append(collectedPartialResult);
     }
 
-    // Derive some new keys for backward compaibility
-    if (mDerivePostRawSensKey && !captureResult.mMetadata.exists(
-            ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST)) {
-        int32_t defaultBoost[1] = {100};
-        captureResult.mMetadata.update(
-                ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST,
-                defaultBoost, 1);
-    }
-
     captureResult.mMetadata.sort();
 
     // Check that there's a timestamp in the result metadata
@@ -2384,7 +2503,7 @@
     mTagMonitor.monitorMetadata(TagMonitor::RESULT,
             frameNumber, timestamp.data.i64[0], captureResult.mMetadata);
 
-    insertResultLocked(&captureResult, frameNumber, aeTriggerCancelOverride);
+    insertResultLocked(&captureResult, frameNumber);
 }
 
 /**
@@ -2404,10 +2523,7 @@
         return;
     }
 
-    // For HAL3.2 or above, If HAL doesn't support partial, it must always set
-    // partial_result to 1 when metadata is included in this result.
     if (!mUsePartialResult &&
-            mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2 &&
             result->result != NULL &&
             result->partial_result != 1) {
         SET_ERR("Result is malformed for frame %d: partial_result %u must be 1"
@@ -2440,10 +2556,10 @@
         InFlightRequest &request = mInFlightMap.editValueAt(idx);
         ALOGVV("%s: got InFlightRequest requestId = %" PRId32
                 ", frameNumber = %" PRId64 ", burstId = %" PRId32
-                ", partialResultCount = %d",
+                ", partialResultCount = %d, hasCallback = %d",
                 __FUNCTION__, request.resultExtras.requestId,
                 request.resultExtras.frameNumber, request.resultExtras.burstId,
-                result->partial_result);
+                result->partial_result, request.hasCallback);
         // Always update the partial count to the latest one if it's not 0
         // (buffers only). When framework aggregates adjacent partial results
         // into one, the latest partial count will be used.
@@ -2452,39 +2568,21 @@
 
         // Check if this result carries only partial metadata
         if (mUsePartialResult && result->result != NULL) {
-            if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
-                if (result->partial_result > mNumPartialResults || result->partial_result < 1) {
-                    SET_ERR("Result is malformed for frame %d: partial_result %u must be  in"
-                            " the range of [1, %d] when metadata is included in the result",
-                            frameNumber, result->partial_result, mNumPartialResults);
-                    return;
-                }
-                isPartialResult = (result->partial_result < mNumPartialResults);
-                if (isPartialResult) {
-                    request.collectedPartialResult.append(result->result);
-                }
-            } else {
-                camera_metadata_ro_entry_t partialResultEntry;
-                res = find_camera_metadata_ro_entry(result->result,
-                        ANDROID_QUIRKS_PARTIAL_RESULT, &partialResultEntry);
-                if (res != NAME_NOT_FOUND &&
-                        partialResultEntry.count > 0 &&
-                        partialResultEntry.data.u8[0] ==
-                        ANDROID_QUIRKS_PARTIAL_RESULT_PARTIAL) {
-                    // A partial result. Flag this as such, and collect this
-                    // set of metadata into the in-flight entry.
-                    isPartialResult = true;
-                    request.collectedPartialResult.append(
-                        result->result);
-                    request.collectedPartialResult.erase(
-                        ANDROID_QUIRKS_PARTIAL_RESULT);
-                }
+            if (result->partial_result > mNumPartialResults || result->partial_result < 1) {
+                SET_ERR("Result is malformed for frame %d: partial_result %u must be  in"
+                        " the range of [1, %d] when metadata is included in the result",
+                        frameNumber, result->partial_result, mNumPartialResults);
+                return;
+            }
+            isPartialResult = (result->partial_result < mNumPartialResults);
+            if (isPartialResult) {
+                request.collectedPartialResult.append(result->result);
             }
 
-            if (isPartialResult) {
+            if (isPartialResult && request.hasCallback) {
                 // Send partial capture result
-                sendPartialCaptureResult(result->result, request.resultExtras, frameNumber,
-                        request.aeTriggerCancelOverride);
+                sendPartialCaptureResult(result->result, request.resultExtras,
+                        frameNumber);
             }
         }
 
@@ -2545,12 +2643,12 @@
             if (shutterTimestamp == 0) {
                 request.pendingMetadata = result->result;
                 request.collectedPartialResult = collectedPartialResult;
-            } else {
+            } else if (request.hasCallback) {
                 CameraMetadata metadata;
                 metadata = result->result;
                 sendCaptureResult(metadata, request.resultExtras,
-                    collectedPartialResult, frameNumber, hasInputBufferInRequest,
-                    request.aeTriggerCancelOverride);
+                    collectedPartialResult, frameNumber,
+                    hasInputBufferInRequest);
             }
         }
 
@@ -2635,8 +2733,8 @@
                 Camera3Stream::cast(msg.error_stream);
         streamId = stream->getId();
     }
-    ALOGV("Camera %d: %s: HAL error, frame %d, stream %d: %d",
-            mId, __FUNCTION__, msg.frame_number,
+    ALOGV("Camera %s: %s: HAL error, frame %d, stream %d: %d",
+            mId.string(), __FUNCTION__, msg.frame_number,
             streamId, msg.error_code);
 
     CaptureResultExtras resultExtras;
@@ -2655,10 +2753,17 @@
                     InFlightRequest &r = mInFlightMap.editValueAt(idx);
                     r.requestStatus = msg.error_code;
                     resultExtras = r.resultExtras;
+                    if (hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_RESULT ==
+                            errorCode) {
+                        // In case of missing result check whether the buffers
+                        // returned. If they returned, then remove inflight
+                        // request.
+                        removeInFlightRequestIfReadyLocked(idx);
+                    }
                 } else {
                     resultExtras.frameNumber = msg.frame_number;
-                    ALOGE("Camera %d: %s: cannot find in-flight request on "
-                            "frame %" PRId64 " error", mId, __FUNCTION__,
+                    ALOGE("Camera %s: %s: cannot find in-flight request on "
+                            "frame %" PRId64 " error", mId.string(), __FUNCTION__,
                             resultExtras.frameNumber);
                 }
             }
@@ -2666,7 +2771,7 @@
             if (listener != NULL) {
                 listener->notifyError(errorCode, resultExtras);
             } else {
-                ALOGE("Camera %d: %s: no listener available", mId, __FUNCTION__);
+                ALOGE("Camera %s: %s: no listener available", mId.string(), __FUNCTION__);
             }
             break;
         default:
@@ -2711,20 +2816,20 @@
                 }
             }
 
-            ALOGVV("Camera %d: %s: Shutter fired for frame %d (id %d) at %" PRId64,
-                    mId, __FUNCTION__,
-                    msg.frame_number, r.resultExtras.requestId, msg.timestamp);
-            // Call listener, if any
-            if (listener != NULL) {
-                listener->notifyShutter(r.resultExtras, msg.timestamp);
-            }
-
             r.shutterTimestamp = msg.timestamp;
-
-            // send pending result and buffers
-            sendCaptureResult(r.pendingMetadata, r.resultExtras,
-                r.collectedPartialResult, msg.frame_number,
-                r.hasInputBuffer, r.aeTriggerCancelOverride);
+            if (r.hasCallback) {
+                ALOGVV("Camera %s: %s: Shutter fired for frame %d (id %d) at %" PRId64,
+                    mId.string(), __FUNCTION__,
+                    msg.frame_number, r.resultExtras.requestId, msg.timestamp);
+                // Call listener, if any
+                if (listener != NULL) {
+                    listener->notifyShutter(r.resultExtras, msg.timestamp);
+                }
+                // send pending result and buffers
+                sendCaptureResult(r.pendingMetadata, r.resultExtras,
+                    r.collectedPartialResult, msg.frame_number,
+                    r.hasInputBuffer);
+            }
             returnOutputBuffers(r.pendingOutputBuffers.array(),
                 r.pendingOutputBuffers.size(), r.shutterTimestamp);
             r.pendingOutputBuffers.clear();
@@ -2758,17 +2863,544 @@
 }
 
 /**
+ * HalInterface inner class methods
+ */
+
+Camera3Device::HalInterface::HalInterface(
+            sp<ICameraDeviceSession> &session,
+            std::shared_ptr<RequestMetadataQueue> queue) :
+        mHal3Device(nullptr),
+        mHidlSession(session),
+        mRequestMetadataQueue(queue) {}
+
+Camera3Device::HalInterface::HalInterface() :
+        mHal3Device(nullptr) {}
+
+Camera3Device::HalInterface::HalInterface(const HalInterface& other) :
+        mHal3Device(other.mHal3Device),
+        mHidlSession(other.mHidlSession),
+        mRequestMetadataQueue(other.mRequestMetadataQueue) {}
+
+bool Camera3Device::HalInterface::valid() {
+    return (mHal3Device != nullptr) || (mHidlSession != nullptr);
+}
+
+void Camera3Device::HalInterface::clear() {
+    mHal3Device = nullptr;
+    mHidlSession.clear();
+}
+
+bool Camera3Device::HalInterface::supportBatchRequest() {
+    return mHidlSession != nullptr;
+}
+
+status_t Camera3Device::HalInterface::constructDefaultRequestSettings(
+        camera3_request_template_t templateId,
+        /*out*/ camera_metadata_t **requestTemplate) {
+    ATRACE_NAME("CameraHal::constructDefaultRequestSettings");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        const camera_metadata *r;
+        r = mHal3Device->ops->construct_default_request_settings(
+                mHal3Device, templateId);
+        if (r == nullptr) return BAD_VALUE;
+        *requestTemplate = clone_camera_metadata(r);
+        if (requestTemplate == nullptr) {
+            ALOGE("%s: Unable to clone camera metadata received from HAL",
+                    __FUNCTION__);
+            return INVALID_OPERATION;
+        }
+    } else {
+        common::V1_0::Status status;
+        RequestTemplate id;
+        switch (templateId) {
+            case CAMERA3_TEMPLATE_PREVIEW:
+                id = RequestTemplate::PREVIEW;
+                break;
+            case CAMERA3_TEMPLATE_STILL_CAPTURE:
+                id = RequestTemplate::STILL_CAPTURE;
+                break;
+            case CAMERA3_TEMPLATE_VIDEO_RECORD:
+                id = RequestTemplate::VIDEO_RECORD;
+                break;
+            case CAMERA3_TEMPLATE_VIDEO_SNAPSHOT:
+                id = RequestTemplate::VIDEO_SNAPSHOT;
+                break;
+            case CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG:
+                id = RequestTemplate::ZERO_SHUTTER_LAG;
+                break;
+            case CAMERA3_TEMPLATE_MANUAL:
+                id = RequestTemplate::MANUAL;
+                break;
+            default:
+                // Unknown template ID
+                return BAD_VALUE;
+        }
+        auto err = mHidlSession->constructDefaultRequestSettings(id,
+                [&status, &requestTemplate]
+                (common::V1_0::Status s, const device::V3_2::CameraMetadata& request) {
+                    status = s;
+                    if (status == common::V1_0::Status::OK) {
+                        const camera_metadata *r =
+                                reinterpret_cast<const camera_metadata_t*>(request.data());
+                        size_t expectedSize = request.size();
+                        int ret = validate_camera_metadata_structure(r, &expectedSize);
+                        if (ret == OK || ret == CAMERA_METADATA_VALIDATION_SHIFTED) {
+                            *requestTemplate = clone_camera_metadata(r);
+                            if (*requestTemplate == nullptr) {
+                                ALOGE("%s: Unable to clone camera metadata received from HAL",
+                                        __FUNCTION__);
+                                status = common::V1_0::Status::INTERNAL_ERROR;
+                            }
+                        } else {
+                            ALOGE("%s: Malformed camera metadata received from HAL", __FUNCTION__);
+                            status = common::V1_0::Status::INTERNAL_ERROR;
+                        }
+                    }
+                });
+        if (!err.isOk()) {
+            ALOGE("%s: Transaction error: %s", __FUNCTION__, err.description().c_str());
+            res = DEAD_OBJECT;
+        } else {
+            res = CameraProviderManager::mapToStatusT(status);
+        }
+    }
+    return res;
+}
+
+status_t Camera3Device::HalInterface::configureStreams(camera3_stream_configuration *config) {
+    ATRACE_NAME("CameraHal::configureStreams");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        res = mHal3Device->ops->configure_streams(mHal3Device, config);
+    } else {
+        // Convert stream config to HIDL
+        std::set<int> activeStreams;
+        StreamConfiguration requestedConfiguration;
+        requestedConfiguration.streams.resize(config->num_streams);
+        for (size_t i = 0; i < config->num_streams; i++) {
+            Stream &dst = requestedConfiguration.streams[i];
+            camera3_stream_t *src = config->streams[i];
+
+            Camera3Stream* cam3stream = Camera3Stream::cast(src);
+            cam3stream->setBufferFreedListener(this);
+            int streamId = cam3stream->getId();
+            StreamType streamType;
+            switch (src->stream_type) {
+                case CAMERA3_STREAM_OUTPUT:
+                    streamType = StreamType::OUTPUT;
+                    break;
+                case CAMERA3_STREAM_INPUT:
+                    streamType = StreamType::INPUT;
+                    break;
+                default:
+                    ALOGE("%s: Stream %d: Unsupported stream type %d",
+                            __FUNCTION__, streamId, config->streams[i]->stream_type);
+                    return BAD_VALUE;
+            }
+            dst.id = streamId;
+            dst.streamType = streamType;
+            dst.width = src->width;
+            dst.height = src->height;
+            dst.format = mapToPixelFormat(src->format);
+            dst.usage = mapToConsumerUsage(src->usage);
+            dst.dataSpace = mapToHidlDataspace(src->data_space);
+            dst.rotation = mapToStreamRotation((camera3_stream_rotation_t) src->rotation);
+
+            activeStreams.insert(streamId);
+            // Create Buffer ID map if necessary
+            if (mBufferIdMaps.count(streamId) == 0) {
+                mBufferIdMaps.emplace(streamId, BufferIdMap{});
+            }
+        }
+        // remove BufferIdMap for deleted streams
+        for(auto it = mBufferIdMaps.begin(); it != mBufferIdMaps.end();) {
+            int streamId = it->first;
+            bool active = activeStreams.count(streamId) > 0;
+            if (!active) {
+                it = mBufferIdMaps.erase(it);
+            } else {
+                ++it;
+            }
+        }
+
+        res = mapToStreamConfigurationMode(
+                (camera3_stream_configuration_mode_t) config->operation_mode,
+                /*out*/ &requestedConfiguration.operationMode);
+        if (res != OK) {
+            return res;
+        }
+
+        // Invoke configureStreams
+
+        HalStreamConfiguration finalConfiguration;
+        common::V1_0::Status status;
+        auto err = mHidlSession->configureStreams(requestedConfiguration,
+                [&status, &finalConfiguration]
+                (common::V1_0::Status s, const HalStreamConfiguration& halConfiguration) {
+                    finalConfiguration = halConfiguration;
+                    status = s;
+                });
+        if (!err.isOk()) {
+            ALOGE("%s: Transaction error: %s", __FUNCTION__, err.description().c_str());
+            return DEAD_OBJECT;
+        }
+
+        if (status != common::V1_0::Status::OK ) {
+            return CameraProviderManager::mapToStatusT(status);
+        }
+
+        // And convert output stream configuration from HIDL
+
+        for (size_t i = 0; i < config->num_streams; i++) {
+            camera3_stream_t *dst = config->streams[i];
+            int streamId = Camera3Stream::cast(dst)->getId();
+
+            // Start scan at i, with the assumption that the stream order matches
+            size_t realIdx = i;
+            bool found = false;
+            for (size_t idx = 0; idx < finalConfiguration.streams.size(); idx++) {
+                if (finalConfiguration.streams[realIdx].id == streamId) {
+                    found = true;
+                    break;
+                }
+                realIdx = (realIdx >= finalConfiguration.streams.size()) ? 0 : realIdx + 1;
+            }
+            if (!found) {
+                ALOGE("%s: Stream %d not found in stream configuration response from HAL",
+                        __FUNCTION__, streamId);
+                return INVALID_OPERATION;
+            }
+            HalStream &src = finalConfiguration.streams[realIdx];
+
+            int overrideFormat = mapToFrameworkFormat(src.overrideFormat);
+            if (dst->format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) {
+                if (dst->format != overrideFormat) {
+                    ALOGE("%s: Stream %d: Format override not allowed for format 0x%x", __FUNCTION__,
+                            streamId, dst->format);
+                }
+            } else {
+                // Override allowed with IMPLEMENTATION_DEFINED
+                dst->format = overrideFormat;
+            }
+
+            if (dst->stream_type == CAMERA3_STREAM_INPUT) {
+                if (src.producerUsage != 0) {
+                    ALOGE("%s: Stream %d: INPUT streams must have 0 for producer usage",
+                            __FUNCTION__, streamId);
+                    return INVALID_OPERATION;
+                }
+                dst->usage = mapConsumerToFrameworkUsage(src.consumerUsage);
+            } else {
+                // OUTPUT
+                if (src.consumerUsage != 0) {
+                    ALOGE("%s: Stream %d: OUTPUT streams must have 0 for consumer usage",
+                            __FUNCTION__, streamId);
+                    return INVALID_OPERATION;
+                }
+                dst->usage = mapProducerToFrameworkUsage(src.producerUsage);
+            }
+            dst->max_buffers = src.maxBuffers;
+        }
+    }
+    return res;
+}
+
+void Camera3Device::HalInterface::wrapAsHidlRequest(camera3_capture_request_t* request,
+        /*out*/device::V3_2::CaptureRequest* captureRequest,
+        /*out*/std::vector<native_handle_t*>* handlesCreated) {
+
+    if (captureRequest == nullptr || handlesCreated == nullptr) {
+        ALOGE("%s: captureRequest (%p) and handlesCreated (%p) must not be null",
+                __FUNCTION__, captureRequest, handlesCreated);
+        return;
+    }
+
+    captureRequest->frameNumber = request->frame_number;
+
+    captureRequest->fmqSettingsSize = 0;
+
+    {
+        std::lock_guard<std::mutex> lock(mInflightLock);
+        if (request->input_buffer != nullptr) {
+            int32_t streamId = Camera3Stream::cast(request->input_buffer->stream)->getId();
+            buffer_handle_t buf = *(request->input_buffer->buffer);
+            auto pair = getBufferId(buf, streamId);
+            bool isNewBuffer = pair.first;
+            uint64_t bufferId = pair.second;
+            captureRequest->inputBuffer.streamId = streamId;
+            captureRequest->inputBuffer.bufferId = bufferId;
+            captureRequest->inputBuffer.buffer = (isNewBuffer) ? buf : nullptr;
+            captureRequest->inputBuffer.status = BufferStatus::OK;
+            native_handle_t *acquireFence = nullptr;
+            if (request->input_buffer->acquire_fence != -1) {
+                acquireFence = native_handle_create(1,0);
+                acquireFence->data[0] = request->input_buffer->acquire_fence;
+                handlesCreated->push_back(acquireFence);
+            }
+            captureRequest->inputBuffer.acquireFence = acquireFence;
+            captureRequest->inputBuffer.releaseFence = nullptr;
+
+            pushInflightBufferLocked(captureRequest->frameNumber, streamId,
+                    request->input_buffer->buffer,
+                    request->input_buffer->acquire_fence);
+        } else {
+            captureRequest->inputBuffer.streamId = -1;
+            captureRequest->inputBuffer.bufferId = BUFFER_ID_NO_BUFFER;
+        }
+
+        captureRequest->outputBuffers.resize(request->num_output_buffers);
+        for (size_t i = 0; i < request->num_output_buffers; i++) {
+            const camera3_stream_buffer_t *src = request->output_buffers + i;
+            StreamBuffer &dst = captureRequest->outputBuffers[i];
+            int32_t streamId = Camera3Stream::cast(src->stream)->getId();
+            buffer_handle_t buf = *(src->buffer);
+            auto pair = getBufferId(buf, streamId);
+            bool isNewBuffer = pair.first;
+            dst.streamId = streamId;
+            dst.bufferId = pair.second;
+            dst.buffer = isNewBuffer ? buf : nullptr;
+            dst.status = BufferStatus::OK;
+            native_handle_t *acquireFence = nullptr;
+            if (src->acquire_fence != -1) {
+                acquireFence = native_handle_create(1,0);
+                acquireFence->data[0] = src->acquire_fence;
+                handlesCreated->push_back(acquireFence);
+            }
+            dst.acquireFence = acquireFence;
+            dst.releaseFence = nullptr;
+
+            pushInflightBufferLocked(captureRequest->frameNumber, streamId,
+                    src->buffer, src->acquire_fence);
+        }
+    }
+}
+
+status_t Camera3Device::HalInterface::processBatchCaptureRequests(
+        std::vector<camera3_capture_request_t*>& requests,/*out*/uint32_t* numRequestProcessed) {
+    ATRACE_NAME("CameraHal::processBatchCaptureRequests");
+    if (!valid()) return INVALID_OPERATION;
+
+    hardware::hidl_vec<device::V3_2::CaptureRequest> captureRequests;
+    size_t batchSize = requests.size();
+    captureRequests.resize(batchSize);
+    std::vector<native_handle_t*> handlesCreated;
+
+    for (size_t i = 0; i < batchSize; i++) {
+        wrapAsHidlRequest(requests[i], /*out*/&captureRequests[i], /*out*/&handlesCreated);
+    }
+
+    std::vector<device::V3_2::BufferCache> cachesToRemove;
+    {
+        std::lock_guard<std::mutex> lock(mBufferIdMapLock);
+        for (auto& pair : mFreedBuffers) {
+            // The stream might have been removed since onBufferFreed
+            if (mBufferIdMaps.find(pair.first) != mBufferIdMaps.end()) {
+                cachesToRemove.push_back({pair.first, pair.second});
+            }
+        }
+        mFreedBuffers.clear();
+    }
+
+    common::V1_0::Status status = common::V1_0::Status::INTERNAL_ERROR;
+    *numRequestProcessed = 0;
+
+    // Write metadata to FMQ.
+    for (size_t i = 0; i < batchSize; i++) {
+        camera3_capture_request_t* request = requests[i];
+        device::V3_2::CaptureRequest* captureRequest = &captureRequests[i];
+
+        if (request->settings != nullptr) {
+            size_t settingsSize = get_camera_metadata_size(request->settings);
+            if (mRequestMetadataQueue != nullptr && mRequestMetadataQueue->write(
+                    reinterpret_cast<const uint8_t*>(request->settings), settingsSize)) {
+                captureRequest->settings.resize(0);
+                captureRequest->fmqSettingsSize = settingsSize;
+            } else {
+                if (mRequestMetadataQueue != nullptr) {
+                    ALOGW("%s: couldn't utilize fmq, fallback to hwbinder", __FUNCTION__);
+                }
+                captureRequest->settings.setToExternal(
+                        reinterpret_cast<uint8_t*>(const_cast<camera_metadata_t*>(request->settings)),
+                        get_camera_metadata_size(request->settings));
+                captureRequest->fmqSettingsSize = 0u;
+            }
+        } else {
+            // A null request settings maps to a size-0 CameraMetadata
+            captureRequest->settings.resize(0);
+            captureRequest->fmqSettingsSize = 0u;
+        }
+    }
+    auto err = mHidlSession->processCaptureRequest(captureRequests, cachesToRemove,
+            [&status, &numRequestProcessed] (auto s, uint32_t n) {
+                status = s;
+                *numRequestProcessed = n;
+            });
+    if (!err.isOk()) {
+        ALOGE("%s: Transaction error: %s", __FUNCTION__, err.description().c_str());
+        return DEAD_OBJECT;
+    }
+    if (status == common::V1_0::Status::OK && *numRequestProcessed != batchSize) {
+        ALOGE("%s: processCaptureRequest returns OK but processed %d/%zu requests",
+                __FUNCTION__, *numRequestProcessed, batchSize);
+        status = common::V1_0::Status::INTERNAL_ERROR;
+    }
+
+    for (auto& handle : handlesCreated) {
+        native_handle_delete(handle);
+    }
+    return CameraProviderManager::mapToStatusT(status);
+}
+
+status_t Camera3Device::HalInterface::processCaptureRequest(
+        camera3_capture_request_t *request) {
+    ATRACE_NAME("CameraHal::processCaptureRequest");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        res = mHal3Device->ops->process_capture_request(mHal3Device, request);
+    } else {
+        uint32_t numRequestProcessed = 0;
+        std::vector<camera3_capture_request_t*> requests(1);
+        requests[0] = request;
+        res = processBatchCaptureRequests(requests, &numRequestProcessed);
+    }
+    return res;
+}
+
+status_t Camera3Device::HalInterface::flush() {
+    ATRACE_NAME("CameraHal::flush");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        res = mHal3Device->ops->flush(mHal3Device);
+    } else {
+        auto err = mHidlSession->flush();
+        if (!err.isOk()) {
+            ALOGE("%s: Transaction error: %s", __FUNCTION__, err.description().c_str());
+            res = DEAD_OBJECT;
+        } else {
+            res = CameraProviderManager::mapToStatusT(err);
+        }
+    }
+    return res;
+}
+
+status_t Camera3Device::HalInterface::dump(int fd) {
+    ATRACE_NAME("CameraHal::dump");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        mHal3Device->ops->dump(mHal3Device, fd);
+    } else {
+        // Handled by CameraProviderManager::dump
+    }
+    return res;
+}
+
+status_t Camera3Device::HalInterface::close() {
+    ATRACE_NAME("CameraHal::close()");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        mHal3Device->common.close(&mHal3Device->common);
+    } else {
+        auto err = mHidlSession->close();
+        // Interface will be dead shortly anyway, so don't log errors
+        if (!err.isOk()) {
+            res = DEAD_OBJECT;
+        }
+    }
+    return res;
+}
+
+status_t Camera3Device::HalInterface::pushInflightBufferLocked(
+        int32_t frameNumber, int32_t streamId, buffer_handle_t *buffer, int acquireFence) {
+    uint64_t key = static_cast<uint64_t>(frameNumber) << 32 | static_cast<uint64_t>(streamId);
+    auto pair = std::make_pair(buffer, acquireFence);
+    mInflightBufferMap[key] = pair;
+    return OK;
+}
+
+status_t Camera3Device::HalInterface::popInflightBuffer(
+        int32_t frameNumber, int32_t streamId,
+        /*out*/ buffer_handle_t **buffer) {
+    std::lock_guard<std::mutex> lock(mInflightLock);
+
+    uint64_t key = static_cast<uint64_t>(frameNumber) << 32 | static_cast<uint64_t>(streamId);
+    auto it = mInflightBufferMap.find(key);
+    if (it == mInflightBufferMap.end()) return NAME_NOT_FOUND;
+    auto pair = it->second;
+    *buffer = pair.first;
+    int acquireFence = pair.second;
+    if (acquireFence > 0) {
+        ::close(acquireFence);
+    }
+    mInflightBufferMap.erase(it);
+    return OK;
+}
+
+std::pair<bool, uint64_t> Camera3Device::HalInterface::getBufferId(
+        const buffer_handle_t& buf, int streamId) {
+    std::lock_guard<std::mutex> lock(mBufferIdMapLock);
+
+    BufferIdMap& bIdMap = mBufferIdMaps.at(streamId);
+    auto it = bIdMap.find(buf);
+    if (it == bIdMap.end()) {
+        bIdMap[buf] = mNextBufferId++;
+        ALOGV("stream %d now have %zu buffer caches, buf %p",
+                streamId, bIdMap.size(), buf);
+        return std::make_pair(true, mNextBufferId - 1);
+    } else {
+        return std::make_pair(false, it->second);
+    }
+}
+
+void Camera3Device::HalInterface::onBufferFreed(
+        int streamId, const native_handle_t* handle) {
+    std::lock_guard<std::mutex> lock(mBufferIdMapLock);
+    uint64_t bufferId = BUFFER_ID_NO_BUFFER;
+    auto mapIt = mBufferIdMaps.find(streamId);
+    if (mapIt == mBufferIdMaps.end()) {
+        // streamId might be from a deleted stream here
+        ALOGI("%s: stream %d has been removed",
+                __FUNCTION__, streamId);
+        return;
+    }
+    BufferIdMap& bIdMap = mapIt->second;
+    auto it = bIdMap.find(handle);
+    if (it == bIdMap.end()) {
+        ALOGW("%s: cannot find buffer %p in stream %d",
+                __FUNCTION__, handle, streamId);
+        return;
+    } else {
+        bufferId =  it->second;
+        bIdMap.erase(it);
+        ALOGV("%s: stream %d now have %zu buffer caches after removing buf %p",
+                __FUNCTION__, streamId, bIdMap.size(), handle);
+    }
+    mFreedBuffers.push_back(std::make_pair(streamId, bufferId));
+}
+
+/**
  * RequestThread inner class methods
  */
 
 Camera3Device::RequestThread::RequestThread(wp<Camera3Device> parent,
         sp<StatusTracker> statusTracker,
-        camera3_device_t *hal3Device,
-        bool aeLockAvailable) :
+        HalInterface* interface) :
         Thread(/*canCallJava*/false),
         mParent(parent),
         mStatusTracker(statusTracker),
-        mHal3Device(hal3Device),
+        mInterface(interface),
         mListener(nullptr),
         mId(getId(parent)),
         mReconfigured(false),
@@ -2780,11 +3412,13 @@
         mCurrentPreCaptureTriggerId(0),
         mRepeatingLastFrameNumber(
             hardware::camera2::ICameraDeviceUser::NO_IN_FLIGHT_REPEATING_FRAMES),
-        mAeLockAvailable(aeLockAvailable),
-        mPrepareVideoStream(false) {
+        mPrepareVideoStream(false),
+        mRequestLatency(kRequestLatencyBinSize) {
     mStatusId = statusTracker->addComponent();
 }
 
+Camera3Device::RequestThread::~RequestThread() {}
+
 void Camera3Device::RequestThread::setNotificationListener(
         wp<NotificationListener> listener) {
     Mutex::Autolock l(mRequestLock);
@@ -2839,10 +3473,11 @@
     return OK;
 }
 
-int Camera3Device::RequestThread::getId(const wp<Camera3Device> &device) {
+const String8& Camera3Device::RequestThread::getId(const wp<Camera3Device> &device) {
+    static String8 deadId("<DeadDevice>");
     sp<Camera3Device> d = device.promote();
-    if (d != NULL) return d->mId;
-    return 0;
+    if (d != nullptr) return d->mId;
+    return deadId;
 }
 
 status_t Camera3Device::RequestThread::queueTriggerLocked(
@@ -2894,7 +3529,7 @@
     return OK;
 }
 
-bool Camera3Device::RequestThread::isRepeatingRequestLocked(const sp<CaptureRequest> requestIn) {
+bool Camera3Device::RequestThread::isRepeatingRequestLocked(const sp<CaptureRequest>& requestIn) {
     if (mRepeatingRequests.empty()) {
         return false;
     }
@@ -2958,6 +3593,8 @@
         }
     }
     mRequestQueue.clear();
+
+    Mutex::Autolock al(mTriggerMutex);
     mTriggerMap.clear();
     if (lastFrameNumber != NULL) {
         *lastFrameNumber = mRepeatingLastFrameNumber;
@@ -2970,11 +3607,7 @@
     ATRACE_CALL();
     Mutex::Autolock l(mFlushLock);
 
-    if (mHal3Device->common.version >= CAMERA_DEVICE_API_VERSION_3_1) {
-        return mHal3Device->ops->flush(mHal3Device);
-    }
-
-    return -ENOTSUP;
+    return mInterface->flush();
 }
 
 void Camera3Device::RequestThread::setPaused(bool paused) {
@@ -3005,65 +3638,9 @@
     // The exit from any possible waits
     mDoPauseSignal.signal();
     mRequestSignal.signal();
-}
 
-
-/**
- * For devices <= CAMERA_DEVICE_API_VERSION_3_2, AE_PRECAPTURE_TRIGGER_CANCEL is not supported so
- * we need to override AE_PRECAPTURE_TRIGGER_CANCEL to AE_PRECAPTURE_TRIGGER_IDLE and AE_LOCK_OFF
- * to AE_LOCK_ON to start cancelling AE precapture. If AE lock is not available, it still overrides
- * AE_PRECAPTURE_TRIGGER_CANCEL to AE_PRECAPTURE_TRIGGER_IDLE but doesn't add AE_LOCK_ON to the
- * request.
- */
-void Camera3Device::RequestThread::handleAePrecaptureCancelRequest(sp<CaptureRequest> request) {
-    request->mAeTriggerCancelOverride.applyAeLock = false;
-    request->mAeTriggerCancelOverride.applyAePrecaptureTrigger = false;
-
-    if (mHal3Device->common.version > CAMERA_DEVICE_API_VERSION_3_2) {
-        return;
-    }
-
-    camera_metadata_entry_t aePrecaptureTrigger =
-            request->mSettings.find(ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER);
-    if (aePrecaptureTrigger.count > 0 &&
-            aePrecaptureTrigger.data.u8[0] == ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL) {
-        // Always override CANCEL to IDLE
-        uint8_t aePrecaptureTrigger = ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER_IDLE;
-        request->mSettings.update(ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER, &aePrecaptureTrigger, 1);
-        request->mAeTriggerCancelOverride.applyAePrecaptureTrigger = true;
-        request->mAeTriggerCancelOverride.aePrecaptureTrigger =
-                ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL;
-
-        if (mAeLockAvailable == true) {
-            camera_metadata_entry_t aeLock = request->mSettings.find(ANDROID_CONTROL_AE_LOCK);
-            if (aeLock.count == 0 ||  aeLock.data.u8[0] == ANDROID_CONTROL_AE_LOCK_OFF) {
-                uint8_t aeLock = ANDROID_CONTROL_AE_LOCK_ON;
-                request->mSettings.update(ANDROID_CONTROL_AE_LOCK, &aeLock, 1);
-                request->mAeTriggerCancelOverride.applyAeLock = true;
-                request->mAeTriggerCancelOverride.aeLock = ANDROID_CONTROL_AE_LOCK_OFF;
-            }
-        }
-    }
-}
-
-/**
- * Override result metadata for cancelling AE precapture trigger applied in
- * handleAePrecaptureCancelRequest().
- */
-void Camera3Device::overrideResultForPrecaptureCancel(
-        CameraMetadata *result, const AeTriggerCancelOverride_t &aeTriggerCancelOverride) {
-    if (aeTriggerCancelOverride.applyAeLock) {
-        // Only devices <= v3.2 should have this override
-        assert(mDeviceVersion <= CAMERA_DEVICE_API_VERSION_3_2);
-        result->update(ANDROID_CONTROL_AE_LOCK, &aeTriggerCancelOverride.aeLock, 1);
-    }
-
-    if (aeTriggerCancelOverride.applyAePrecaptureTrigger) {
-        // Only devices <= v3.2 should have this override
-        assert(mDeviceVersion <= CAMERA_DEVICE_API_VERSION_3_2);
-        result->update(ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER,
-                &aeTriggerCancelOverride.aePrecaptureTrigger, 1);
-    }
+    mRequestLatency.log("ProcessCaptureRequest latency histogram");
+    mRequestLatency.reset();
 }
 
 void Camera3Device::RequestThread::checkAndStopRepeatingRequest() {
@@ -3094,6 +3671,128 @@
     }
 }
 
+bool Camera3Device::RequestThread::sendRequestsBatch() {
+    status_t res;
+    size_t batchSize = mNextRequests.size();
+    std::vector<camera3_capture_request_t*> requests(batchSize);
+    uint32_t numRequestProcessed = 0;
+    for (size_t i = 0; i < batchSize; i++) {
+        requests[i] = &mNextRequests.editItemAt(i).halRequest;
+    }
+
+    ATRACE_ASYNC_BEGIN("batch frame capture", mNextRequests[0].halRequest.frame_number);
+    res = mInterface->processBatchCaptureRequests(requests, &numRequestProcessed);
+
+    bool triggerRemoveFailed = false;
+    NextRequest& triggerFailedRequest = mNextRequests.editItemAt(0);
+    for (size_t i = 0; i < numRequestProcessed; i++) {
+        NextRequest& nextRequest = mNextRequests.editItemAt(i);
+        nextRequest.submitted = true;
+
+
+        // Update the latest request sent to HAL
+        if (nextRequest.halRequest.settings != NULL) { // Don't update if they were unchanged
+            Mutex::Autolock al(mLatestRequestMutex);
+
+            camera_metadata_t* cloned = clone_camera_metadata(nextRequest.halRequest.settings);
+            mLatestRequest.acquire(cloned);
+
+            sp<Camera3Device> parent = mParent.promote();
+            if (parent != NULL) {
+                parent->monitorMetadata(TagMonitor::REQUEST,
+                        nextRequest.halRequest.frame_number,
+                        0, mLatestRequest);
+            }
+        }
+
+        if (nextRequest.halRequest.settings != NULL) {
+            nextRequest.captureRequest->mSettings.unlock(nextRequest.halRequest.settings);
+        }
+
+        if (!triggerRemoveFailed) {
+            // Remove any previously queued triggers (after unlock)
+            status_t removeTriggerRes = removeTriggers(mPrevRequest);
+            if (removeTriggerRes != OK) {
+                triggerRemoveFailed = true;
+                triggerFailedRequest = nextRequest;
+            }
+        }
+    }
+
+    if (triggerRemoveFailed) {
+        SET_ERR("RequestThread: Unable to remove triggers "
+              "(capture request %d, HAL device: %s (%d)",
+              triggerFailedRequest.halRequest.frame_number, strerror(-res), res);
+        cleanUpFailedRequests(/*sendRequestError*/ false);
+        return false;
+    }
+
+    if (res != OK) {
+        // Should only get a failure here for malformed requests or device-level
+        // errors, so consider all errors fatal.  Bad metadata failures should
+        // come through notify.
+        SET_ERR("RequestThread: Unable to submit capture request %d to HAL device: %s (%d)",
+                mNextRequests[numRequestProcessed].halRequest.frame_number,
+                strerror(-res), res);
+        cleanUpFailedRequests(/*sendRequestError*/ false);
+        return false;
+    }
+    return true;
+}
+
+bool Camera3Device::RequestThread::sendRequestsOneByOne() {
+    status_t res;
+
+    for (auto& nextRequest : mNextRequests) {
+        // Submit request and block until ready for next one
+        ATRACE_ASYNC_BEGIN("frame capture", nextRequest.halRequest.frame_number);
+        res = mInterface->processCaptureRequest(&nextRequest.halRequest);
+
+        if (res != OK) {
+            // Should only get a failure here for malformed requests or device-level
+            // errors, so consider all errors fatal.  Bad metadata failures should
+            // come through notify.
+            SET_ERR("RequestThread: Unable to submit capture request %d to HAL"
+                    " device: %s (%d)", nextRequest.halRequest.frame_number, strerror(-res),
+                    res);
+            cleanUpFailedRequests(/*sendRequestError*/ false);
+            return false;
+        }
+
+        // Mark that the request has be submitted successfully.
+        nextRequest.submitted = true;
+
+        // Update the latest request sent to HAL
+        if (nextRequest.halRequest.settings != NULL) { // Don't update if they were unchanged
+            Mutex::Autolock al(mLatestRequestMutex);
+
+            camera_metadata_t* cloned = clone_camera_metadata(nextRequest.halRequest.settings);
+            mLatestRequest.acquire(cloned);
+
+            sp<Camera3Device> parent = mParent.promote();
+            if (parent != NULL) {
+                parent->monitorMetadata(TagMonitor::REQUEST, nextRequest.halRequest.frame_number,
+                        0, mLatestRequest);
+            }
+        }
+
+        if (nextRequest.halRequest.settings != NULL) {
+            nextRequest.captureRequest->mSettings.unlock(nextRequest.halRequest.settings);
+        }
+
+        // Remove any previously queued triggers (after unlock)
+        res = removeTriggers(mPrevRequest);
+        if (res != OK) {
+            SET_ERR("RequestThread: Unable to remove triggers "
+                  "(capture request %d, HAL device: %s (%d)",
+                  nextRequest.halRequest.frame_number, strerror(-res), res);
+            cleanUpFailedRequests(/*sendRequestError*/ false);
+            return false;
+        }
+    }
+    return true;
+}
+
 bool Camera3Device::RequestThread::threadLoop() {
     ATRACE_CALL();
     status_t res;
@@ -3156,61 +3855,16 @@
 
     ALOGVV("%s: %d: submitting %zu requests in a batch.", __FUNCTION__, __LINE__,
             mNextRequests.size());
-    for (auto& nextRequest : mNextRequests) {
-        // Submit request and block until ready for next one
-        ATRACE_ASYNC_BEGIN("frame capture", nextRequest.halRequest.frame_number);
-        ATRACE_BEGIN("camera3->process_capture_request");
-        res = mHal3Device->ops->process_capture_request(mHal3Device, &nextRequest.halRequest);
-        ATRACE_END();
 
-        if (res != OK) {
-            // Should only get a failure here for malformed requests or device-level
-            // errors, so consider all errors fatal.  Bad metadata failures should
-            // come through notify.
-            SET_ERR("RequestThread: Unable to submit capture request %d to HAL"
-                    " device: %s (%d)", nextRequest.halRequest.frame_number, strerror(-res),
-                    res);
-            cleanUpFailedRequests(/*sendRequestError*/ false);
-            if (useFlushLock) {
-                mFlushLock.unlock();
-            }
-            return false;
-        }
-
-        // Mark that the request has be submitted successfully.
-        nextRequest.submitted = true;
-
-        // Update the latest request sent to HAL
-        if (nextRequest.halRequest.settings != NULL) { // Don't update if they were unchanged
-            Mutex::Autolock al(mLatestRequestMutex);
-
-            camera_metadata_t* cloned = clone_camera_metadata(nextRequest.halRequest.settings);
-            mLatestRequest.acquire(cloned);
-
-            sp<Camera3Device> parent = mParent.promote();
-            if (parent != NULL) {
-                parent->monitorMetadata(TagMonitor::REQUEST, nextRequest.halRequest.frame_number,
-                        0, mLatestRequest);
-            }
-        }
-
-        if (nextRequest.halRequest.settings != NULL) {
-            nextRequest.captureRequest->mSettings.unlock(nextRequest.halRequest.settings);
-        }
-
-        // Remove any previously queued triggers (after unlock)
-        res = removeTriggers(mPrevRequest);
-        if (res != OK) {
-            SET_ERR("RequestThread: Unable to remove triggers "
-                  "(capture request %d, HAL device: %s (%d)",
-                  nextRequest.halRequest.frame_number, strerror(-res), res);
-            cleanUpFailedRequests(/*sendRequestError*/ false);
-            if (useFlushLock) {
-                mFlushLock.unlock();
-            }
-            return false;
-        }
+    bool submitRequestSuccess = false;
+    nsecs_t tRequestStart = systemTime(SYSTEM_TIME_MONOTONIC);
+    if (mInterface->supportBatchRequest()) {
+        submitRequestSuccess = sendRequestsBatch();
+    } else {
+        submitRequestSuccess = sendRequestsOneByOne();
     }
+    nsecs_t tRequestEnd = systemTime(SYSTEM_TIME_MONOTONIC);
+    mRequestLatency.add(tRequestStart, tRequestEnd);
 
     if (useFlushLock) {
         mFlushLock.unlock();
@@ -3222,13 +3876,14 @@
         mNextRequests.clear();
     }
 
-    return true;
+    return submitRequestSuccess;
 }
 
 status_t Camera3Device::RequestThread::prepareHalRequests() {
     ATRACE_CALL();
 
-    for (auto& nextRequest : mNextRequests) {
+    for (size_t i = 0; i < mNextRequests.size(); i++) {
+        auto& nextRequest = mNextRequests.editItemAt(i);
         sp<CaptureRequest> captureRequest = nextRequest.captureRequest;
         camera3_capture_request_t* halRequest = &nextRequest.halRequest;
         Vector<camera3_stream_buffer_t>* outputBuffers = &nextRequest.outputBuffers;
@@ -3305,8 +3960,8 @@
         outputBuffers->insertAt(camera3_stream_buffer_t(), 0,
                 captureRequest->mOutputStreams.size());
         halRequest->output_buffers = outputBuffers->array();
-        for (size_t i = 0; i < captureRequest->mOutputStreams.size(); i++) {
-            sp<Camera3OutputStreamInterface> outputStream = captureRequest->mOutputStreams.editItemAt(i);
+        for (size_t j = 0; j < captureRequest->mOutputStreams.size(); j++) {
+            sp<Camera3OutputStreamInterface> outputStream = captureRequest->mOutputStreams.editItemAt(j);
 
             // Prepare video buffers for high speed recording on the first video request.
             if (mPrepareVideoStream && outputStream->isVideoStream()) {
@@ -3324,7 +3979,8 @@
                 }
             }
 
-            res = outputStream->getBuffer(&outputBuffers->editItemAt(i));
+            res = outputStream->getBuffer(&outputBuffers->editItemAt(j),
+                    captureRequest->mOutputSurfaces[j]);
             if (res != OK) {
                 // Can't get output buffer from gralloc queue - this could be due to
                 // abandoned queue or other consumer misbehavior, so not a fatal
@@ -3335,6 +3991,7 @@
                 return TIMED_OUT;
             }
             halRequest->num_output_buffers++;
+
         }
         totalNumBuffers += halRequest->num_output_buffers;
 
@@ -3345,10 +4002,18 @@
             CLOGE("RequestThread: Parent is gone");
             return INVALID_OPERATION;
         }
+
+        // If this request list is for constrained high speed recording (not
+        // preview), and the current request is not the last one in the batch,
+        // do not send callback to the app.
+        bool hasCallback = true;
+        if (mNextRequests[0].captureRequest->mBatchSize > 1 && i != mNextRequests.size()-1) {
+            hasCallback = false;
+        }
         res = parent->registerInFlight(halRequest->frame_number,
                 totalNumBuffers, captureRequest->mResultExtras,
                 /*hasInput*/halRequest->input_buffer != NULL,
-                captureRequest->mAeTriggerCancelOverride);
+                hasCallback);
         ALOGVV("%s: registered in flight requestId = %" PRId32 ", frameNumber = %" PRId64
                ", burstId = %" PRId32 ".",
                 __FUNCTION__,
@@ -3427,6 +4092,13 @@
         }
 
         for (size_t i = 0; i < halRequest->num_output_buffers; i++) {
+            //Buffers that failed processing could still have
+            //valid acquire fence.
+            int acquireFence = (*outputBuffers)[i].acquire_fence;
+            if (0 <= acquireFence) {
+                close(acquireFence);
+                outputBuffers->editItemAt(i).acquire_fence = -1;
+            }
             outputBuffers->editItemAt(i).status = CAMERA3_BUFFER_STATUS_ERROR;
             captureRequest->mOutputStreams.editItemAt(i)->returnBuffer((*outputBuffers)[i], 0);
         }
@@ -3551,6 +4223,12 @@
                 mRequestQueue.begin();
         nextRequest = *firstRequest;
         mRequestQueue.erase(firstRequest);
+        if (mRequestQueue.empty() && !nextRequest->mRepeating) {
+            sp<NotificationListener> listener = mListener.promote();
+            if (listener != NULL) {
+                listener->notifyRequestQueueEmpty();
+            }
+        }
     }
 
     // In case we've been unpaused by setPaused clearing mDoPause, need to
@@ -3600,8 +4278,6 @@
         }
     }
 
-    handleAePrecaptureCancelRequest(nextRequest);
-
     return nextRequest;
 }
 
@@ -3687,9 +4363,7 @@
                 request->mResultExtras.afTriggerId = triggerId;
                 mCurrentAfTriggerId = triggerId;
             }
-            if (parent->mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_2) {
-                continue; // Trigger ID tag is deprecated since device HAL 3.2
-            }
+            continue;
         }
 
         camera_metadata_entry entry = metadata.find(tag);
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index f422813..bfb58c6 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -17,6 +17,9 @@
 #ifndef ANDROID_SERVERS_CAMERA3DEVICE_H
 #define ANDROID_SERVERS_CAMERA3DEVICE_H
 
+#include <utility>
+#include <unordered_map>
+
 #include <utils/Condition.h>
 #include <utils/Errors.h>
 #include <utils/List.h>
@@ -24,13 +27,21 @@
 #include <utils/Thread.h>
 #include <utils/KeyedVector.h>
 #include <utils/Timers.h>
+
+#include <android/hardware/camera/device/3.2/ICameraDevice.h>
+#include <android/hardware/camera/device/3.2/ICameraDeviceSession.h>
+#include <android/hardware/camera/device/3.2/ICameraDeviceCallback.h>
+#include <fmq/MessageQueue.h>
 #include <hardware/camera3.h>
+
 #include <camera/CaptureResult.h>
 
 #include "common/CameraDeviceBase.h"
 #include "device3/StatusTracker.h"
 #include "device3/Camera3BufferManager.h"
 #include "utils/TagMonitor.h"
+#include "utils/LatencyHistogram.h"
+#include <camera_metadata_hidden.h>
 
 /**
  * Function pointer types with C calling convention to
@@ -55,17 +66,18 @@
 class Camera3OutputStreamInterface;
 class Camera3StreamInterface;
 
-}
+} // namespace camera3
 
 /**
  * CameraDevice for HAL devices with version CAMERA_DEVICE_API_VERSION_3_0 or higher.
  */
 class Camera3Device :
             public CameraDeviceBase,
+            virtual public hardware::camera::device::V3_2::ICameraDeviceCallback,
             private camera3_callback_ops {
   public:
 
-    Camera3Device(int id);
+    explicit Camera3Device(const String8& id);
 
     virtual ~Camera3Device();
 
@@ -73,91 +85,88 @@
      * CameraDeviceBase interface
      */
 
-    virtual int      getId() const;
+    const String8& getId() const override;
 
     // Transitions to idle state on success.
-    virtual status_t initialize(CameraModule *module);
-    virtual status_t disconnect();
-    virtual status_t dump(int fd, const Vector<String16> &args);
-    virtual const CameraMetadata& info() const;
+    status_t initialize(sp<CameraProviderManager> manager) override;
+    status_t disconnect() override;
+    status_t dump(int fd, const Vector<String16> &args) override;
+    const CameraMetadata& info() const override;
 
     // Capture and setStreamingRequest will configure streams if currently in
     // idle state
-    virtual status_t capture(CameraMetadata &request, int64_t *lastFrameNumber = NULL);
-    virtual status_t captureList(const List<const CameraMetadata> &requests,
-                                 int64_t *lastFrameNumber = NULL);
-    virtual status_t setStreamingRequest(const CameraMetadata &request,
-                                         int64_t *lastFrameNumber = NULL);
-    virtual status_t setStreamingRequestList(const List<const CameraMetadata> &requests,
-                                             int64_t *lastFrameNumber = NULL);
-    virtual status_t clearStreamingRequest(int64_t *lastFrameNumber = NULL);
+    status_t capture(CameraMetadata &request, int64_t *lastFrameNumber = NULL) override;
+    status_t captureList(const List<const CameraMetadata> &requests,
+            const std::list<const SurfaceMap> &surfaceMaps,
+            int64_t *lastFrameNumber = NULL) override;
+    status_t setStreamingRequest(const CameraMetadata &request,
+            int64_t *lastFrameNumber = NULL) override;
+    status_t setStreamingRequestList(const List<const CameraMetadata> &requests,
+            const std::list<const SurfaceMap> &surfaceMaps,
+            int64_t *lastFrameNumber = NULL) override;
+    status_t clearStreamingRequest(int64_t *lastFrameNumber = NULL) override;
 
-    virtual status_t waitUntilRequestReceived(int32_t requestId, nsecs_t timeout);
+    status_t waitUntilRequestReceived(int32_t requestId, nsecs_t timeout) override;
 
     // Actual stream creation/deletion is delayed until first request is submitted
     // If adding streams while actively capturing, will pause device before adding
     // stream, reconfiguring device, and unpausing. If the client create a stream
-    // with nullptr consumer surface, the client must then call setConsumer()
+    // with nullptr consumer surface, the client must then call setConsumers()
     // and finish the stream configuration before starting output streaming.
-    virtual status_t createStream(sp<Surface> consumer,
+    status_t createStream(sp<Surface> consumer,
             uint32_t width, uint32_t height, int format,
             android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
             int streamSetId = camera3::CAMERA3_STREAM_SET_ID_INVALID,
-            uint32_t consumerUsage = 0);
-    virtual status_t createInputStream(
+            bool isShared = false, uint32_t consumerUsage = 0) override;
+    status_t createStream(const std::vector<sp<Surface>>& consumers,
+            bool hasDeferredConsumer, uint32_t width, uint32_t height, int format,
+            android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
+            int streamSetId = camera3::CAMERA3_STREAM_SET_ID_INVALID,
+            bool isShared = false, uint32_t consumerUsage = 0) override;
+
+    status_t createInputStream(
             uint32_t width, uint32_t height, int format,
-            int *id);
-    virtual status_t createZslStream(
-            uint32_t width, uint32_t height,
-            int depth,
-            /*out*/
-            int *id,
-            sp<camera3::Camera3ZslStream>* zslStream);
-    virtual status_t createReprocessStreamFromStream(int outputId, int *id);
+            int *id) override;
 
-    virtual status_t getStreamInfo(int id,
+    status_t getStreamInfo(int id,
             uint32_t *width, uint32_t *height,
-            uint32_t *format, android_dataspace *dataSpace);
-    virtual status_t setStreamTransform(int id, int transform);
+            uint32_t *format, android_dataspace *dataSpace) override;
+    status_t setStreamTransform(int id, int transform) override;
 
-    virtual status_t deleteStream(int id);
-    virtual status_t deleteReprocessStream(int id);
+    status_t deleteStream(int id) override;
 
-    virtual status_t configureStreams(bool isConstraiedHighSpeed = false);
-    virtual status_t getInputBufferProducer(
-            sp<IGraphicBufferProducer> *producer);
+    status_t configureStreams(int operatingMode =
+            static_cast<int>(hardware::camera::device::V3_2::StreamConfigurationMode::NORMAL_MODE))
+            override;
+    status_t getInputBufferProducer(
+            sp<IGraphicBufferProducer> *producer) override;
 
-    virtual status_t createDefaultRequest(int templateId, CameraMetadata *request);
+    status_t createDefaultRequest(int templateId, CameraMetadata *request) override;
 
     // Transitions to the idle state on success
-    virtual status_t waitUntilDrained();
+    status_t waitUntilDrained() override;
 
-    virtual status_t setNotifyCallback(wp<NotificationListener> listener);
-    virtual bool     willNotify3A();
-    virtual status_t waitForNextFrame(nsecs_t timeout);
-    virtual status_t getNextResult(CaptureResult *frame);
+    status_t setNotifyCallback(wp<NotificationListener> listener) override;
+    bool     willNotify3A() override;
+    status_t waitForNextFrame(nsecs_t timeout) override;
+    status_t getNextResult(CaptureResult *frame) override;
 
-    virtual status_t triggerAutofocus(uint32_t id);
-    virtual status_t triggerCancelAutofocus(uint32_t id);
-    virtual status_t triggerPrecaptureMetering(uint32_t id);
+    status_t triggerAutofocus(uint32_t id) override;
+    status_t triggerCancelAutofocus(uint32_t id) override;
+    status_t triggerPrecaptureMetering(uint32_t id) override;
 
-    virtual status_t pushReprocessBuffer(int reprocessStreamId,
-            buffer_handle_t *buffer, wp<BufferReleasedListener> listener);
+    status_t flush(int64_t *lastFrameNumber = NULL) override;
 
-    virtual status_t flush(int64_t *lastFrameNumber = NULL);
+    status_t prepare(int streamId) override;
 
-    virtual status_t prepare(int streamId);
+    status_t tearDown(int streamId) override;
 
-    virtual status_t tearDown(int streamId);
+    status_t addBufferListenerForStream(int streamId,
+            wp<camera3::Camera3StreamBufferListener> listener) override;
 
-    virtual status_t addBufferListenerForStream(int streamId,
-            wp<camera3::Camera3StreamBufferListener> listener);
+    status_t prepare(int maxCount, int streamId) override;
 
-    virtual status_t prepare(int maxCount, int streamId);
-
-    virtual uint32_t getDeviceVersion();
-
-    virtual ssize_t getJpegBufferSize(uint32_t width, uint32_t height) const;
+    ssize_t getJpegBufferSize(uint32_t width, uint32_t height) const override;
     ssize_t getPointCloudBufferSize() const;
     ssize_t getRawOpaqueBufferSize(int32_t width, int32_t height) const;
 
@@ -165,12 +174,17 @@
     void             notifyStatus(bool idle); // updates from StatusTracker
 
     /**
-     * Set the deferred consumer surface to the output stream and finish the deferred
+     * Set the deferred consumer surfaces to the output stream and finish the deferred
      * consumer configuration.
      */
-    virtual status_t setConsumerSurface(int streamId, sp<Surface> consumer);
+    status_t setConsumerSurfaces(int streamId, const std::vector<sp<Surface>>& consumers) override;
 
   private:
+
+    // internal typedefs
+    using RequestMetadataQueue = hardware::MessageQueue<uint8_t, hardware::kSynchronizedReadWrite>;
+    using ResultMetadataQueue  = hardware::MessageQueue<uint8_t, hardware::kSynchronizedReadWrite>;
+
     static const size_t        kDumpLockAttempts  = 10;
     static const size_t        kDumpSleepDuration = 100000; // 0.10 sec
     static const nsecs_t       kShutdownTimeout   = 5000000000; // 5 sec
@@ -198,29 +212,137 @@
     Mutex                      mLock;
 
     // Camera device ID
-    const int                  mId;
+    const String8              mId;
+
+    // Current stream configuration mode;
+    int                        mOperatingMode;
+    // Constant to use for no set operating mode
+    static const int           NO_MODE = -1;
 
     // Flag indicating is the current active stream configuration is constrained high speed.
     bool                       mIsConstrainedHighSpeedConfiguration;
 
+    // FMQ to write result on. Must be guarded by mProcessCaptureResultLock.
+    std::unique_ptr<ResultMetadataQueue> mResultMetadataQueue;
+
     /**** Scope for mLock ****/
 
-    camera3_device_t          *mHal3Device;
+    /**
+     * Adapter for legacy HAL / HIDL HAL interface calls; calls either into legacy HALv3 or the
+     * HIDL HALv3 interfaces.
+     */
+    class HalInterface : public camera3::Camera3StreamBufferFreedListener {
+      public:
+        HalInterface(sp<hardware::camera::device::V3_2::ICameraDeviceSession> &session,
+                     std::shared_ptr<RequestMetadataQueue> queue);
+        HalInterface(const HalInterface &other);
+        HalInterface();
+
+        // Returns true if constructed with a valid device or session, and not yet cleared
+        bool valid();
+
+        // Reset this HalInterface object (does not call close())
+        void clear();
+
+        // Check if HalInterface support sending requests in batch
+        bool supportBatchRequest();
+
+        // Calls into the HAL interface
+
+        // Caller takes ownership of requestTemplate
+        status_t constructDefaultRequestSettings(camera3_request_template_t templateId,
+                /*out*/ camera_metadata_t **requestTemplate);
+        status_t configureStreams(/*inout*/ camera3_stream_configuration *config);
+        status_t processCaptureRequest(camera3_capture_request_t *request);
+        status_t processBatchCaptureRequests(
+                std::vector<camera3_capture_request_t*>& requests,
+                /*out*/uint32_t* numRequestProcessed);
+        status_t flush();
+        status_t dump(int fd);
+        status_t close();
+
+        // Find a buffer_handle_t based on frame number and stream ID
+        status_t popInflightBuffer(int32_t frameNumber, int32_t streamId,
+                /*out*/ buffer_handle_t **buffer);
+
+      private:
+        camera3_device_t *mHal3Device;
+        sp<hardware::camera::device::V3_2::ICameraDeviceSession> mHidlSession;
+        std::shared_ptr<RequestMetadataQueue> mRequestMetadataQueue;
+
+        std::mutex mInflightLock;
+
+        // The output HIDL request still depends on input camera3_capture_request_t
+        // Do not free input camera3_capture_request_t before output HIDL request
+        void wrapAsHidlRequest(camera3_capture_request_t* in,
+                /*out*/hardware::camera::device::V3_2::CaptureRequest* out,
+                /*out*/std::vector<native_handle_t*>* handlesCreated);
+
+        status_t pushInflightBufferLocked(int32_t frameNumber, int32_t streamId,
+                buffer_handle_t *buffer, int acquireFence);
+        // Cache of buffer handles keyed off (frameNumber << 32 | streamId)
+        // value is a pair of (buffer_handle_t*, acquire_fence FD)
+        std::unordered_map<uint64_t, std::pair<buffer_handle_t*, int>> mInflightBufferMap;
+
+        struct BufferHasher {
+            size_t operator()(const buffer_handle_t& buf) const {
+                if (buf == nullptr)
+                    return 0;
+
+                size_t result = 1;
+                result = 31 * result + buf->numFds;
+                for (int i = 0; i < buf->numFds; i++) {
+                    result = 31 * result + buf->data[i];
+                }
+                return result;
+            }
+        };
+
+        struct BufferComparator {
+            bool operator()(const buffer_handle_t& buf1, const buffer_handle_t& buf2) const {
+                if (buf1->numFds == buf2->numFds) {
+                    for (int i = 0; i < buf1->numFds; i++) {
+                        if (buf1->data[i] != buf2->data[i]) {
+                            return false;
+                        }
+                    }
+                    return true;
+                }
+                return false;
+            }
+        };
+
+        std::mutex mBufferIdMapLock; // protecting mBufferIdMaps and mNextBufferId
+        typedef std::unordered_map<const buffer_handle_t, uint64_t,
+                BufferHasher, BufferComparator> BufferIdMap;
+        // stream ID -> per stream buffer ID map
+        std::unordered_map<int, BufferIdMap> mBufferIdMaps;
+        uint64_t mNextBufferId = 1; // 0 means no buffer
+        static const uint64_t BUFFER_ID_NO_BUFFER = 0;
+
+        // method to extract buffer's unique ID
+        // TODO: we should switch to use gralloc mapper's getBackingStore API
+        //       once we ran in binderized gralloc mode, but before that is ready,
+        //       we need to rely on the conventional buffer queue behavior where
+        //       buffer_handle_t's FD won't change.
+        // return pair of (newlySeenBuffer?, bufferId)
+        std::pair<bool, uint64_t> getBufferId(const buffer_handle_t& buf, int streamId);
+
+        virtual void onBufferFreed(int streamId, const native_handle_t* handle) override;
+
+        std::vector<std::pair<int, uint64_t>> mFreedBuffers;
+    };
+
+    std::unique_ptr<HalInterface> mInterface;
 
     CameraMetadata             mDeviceInfo;
 
     CameraMetadata             mRequestTemplateCache[CAMERA3_TEMPLATE_COUNT];
 
-    uint32_t                   mDeviceVersion;
-
-    // whether Camera3Device should derive ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST for
-    // backward compatibility. Should not be changed after initialization.
-    bool                       mDerivePostRawSensKey = false;
-
     struct Size {
         uint32_t width;
         uint32_t height;
-        Size(uint32_t w = 0, uint32_t h = 0) : width(w), height(h){}
+        explicit Size(uint32_t w = 0, uint32_t h = 0) : width(w), height(h){}
     };
     // Map from format to size.
     Vector<Size>               mSupportedOpaqueInputSizes;
@@ -274,13 +396,6 @@
     // words, camera device shouldn't be open during CPU suspend.
     nsecs_t                    mTimestampOffset;
 
-    typedef struct AeTriggerCancelOverride {
-        bool applyAeLock;
-        uint8_t aeLock;
-        bool applyAePrecaptureTrigger;
-        uint8_t aePrecaptureTrigger;
-    } AeTriggerCancelOverride_t;
-
     class CaptureRequest : public LightRefBase<CaptureRequest> {
       public:
         CameraMetadata                      mSettings;
@@ -288,15 +403,15 @@
         camera3_stream_buffer_t             mInputBuffer;
         Vector<sp<camera3::Camera3OutputStreamInterface> >
                                             mOutputStreams;
+        SurfaceMap                          mOutputSurfaces;
         CaptureResultExtras                 mResultExtras;
-        // Used to cancel AE precapture trigger for devices doesn't support
-        // CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL
-        AeTriggerCancelOverride_t           mAeTriggerCancelOverride;
         // The number of requests that should be submitted to HAL at a time.
         // For example, if batch size is 8, this request and the following 7
         // requests will be submitted to HAL at a time. The batch size for
         // the following 7 requests will be ignored by the request thread.
         int                                 mBatchSize;
+        //  Whether this request is from a repeating or repeating burst.
+        bool                                mRepeating;
     };
     typedef List<sp<CaptureRequest> > RequestList;
 
@@ -304,16 +419,52 @@
 
     status_t convertMetadataListToRequestListLocked(
             const List<const CameraMetadata> &metadataList,
+            const std::list<const SurfaceMap> &surfaceMaps,
+            bool repeating,
             /*out*/
             RequestList *requestList);
 
-    status_t submitRequestsHelper(const List<const CameraMetadata> &requests, bool repeating,
+    void convertToRequestList(List<const CameraMetadata>& requests,
+            std::list<const SurfaceMap>& surfaceMaps,
+            const CameraMetadata& request);
+
+    status_t submitRequestsHelper(const List<const CameraMetadata> &requests,
+                                  const std::list<const SurfaceMap> &surfaceMaps,
+                                  bool repeating,
                                   int64_t *lastFrameNumber = NULL);
 
+
+    /**
+     * Implementation of android::hardware::camera::device::V3_2::ICameraDeviceCallback
+     */
+
+    hardware::Return<void> processCaptureResult(
+            const hardware::hidl_vec<
+                    hardware::camera::device::V3_2::CaptureResult>& results) override;
+    hardware::Return<void> notify(
+            const hardware::hidl_vec<
+                    hardware::camera::device::V3_2::NotifyMsg>& msgs) override;
+
+    // Handle one capture result. Assume that mProcessCaptureResultLock is held.
+    void processOneCaptureResultLocked(
+            const hardware::camera::device::V3_2::CaptureResult& results);
+    // Handle one notify message
+    void notify(const hardware::camera::device::V3_2::NotifyMsg& msg);
+
+    // lock to ensure only one processCaptureResult is called at a time.
+    Mutex mProcessCaptureResultLock;
+
+    /**
+     * Common initialization code shared by both HAL paths
+     *
+     * Must be called with mLock and mInterfaceLock held.
+     */
+    status_t initializeCommonLocked();
+
     /**
      * Get the last request submitted to the hal by the request thread.
      *
-     * Takes mLock.
+     * Must be called with mLock held.
      */
     virtual CameraMetadata getLatestRequestLocked();
 
@@ -362,19 +513,21 @@
      * Do common work for setting up a streaming or single capture request.
      * On success, will transition to ACTIVE if in IDLE.
      */
-    sp<CaptureRequest> setUpRequestLocked(const CameraMetadata &request);
+    sp<CaptureRequest> setUpRequestLocked(const CameraMetadata &request,
+                                          const SurfaceMap &surfaceMap);
 
     /**
      * Build a CaptureRequest request from the CameraDeviceBase request
      * settings.
      */
-    sp<CaptureRequest> createCaptureRequest(const CameraMetadata &request);
+    sp<CaptureRequest> createCaptureRequest(const CameraMetadata &request,
+                                            const SurfaceMap &surfaceMap);
 
     /**
      * Take the currently-defined set of streams and configure the HAL to use
      * them. This is a long-running operation (may be several hundered ms).
      */
-    status_t           configureStreamsLocked();
+    status_t           configureStreamsLocked(int operatingMode);
 
     /**
      * Cancel stream configuration that did not finish successfully.
@@ -427,9 +580,23 @@
     static nsecs_t getMonoToBoottimeOffset();
 
     /**
-     * Helper function to map between legacy and new dataspace enums
+     * Helper functions to map between framework and HIDL values
      */
-    static android_dataspace mapToLegacyDataspace(android_dataspace dataSpace);
+    static hardware::graphics::common::V1_0::PixelFormat mapToPixelFormat(int frameworkFormat);
+    static hardware::camera::device::V3_2::DataspaceFlags mapToHidlDataspace(
+            android_dataspace dataSpace);
+    static hardware::camera::device::V3_2::BufferUsageFlags mapToConsumerUsage(uint32_t usage);
+    static hardware::camera::device::V3_2::StreamRotation mapToStreamRotation(
+            camera3_stream_rotation_t rotation);
+    // Returns a negative error code if the passed-in operation mode is not valid.
+    static status_t mapToStreamConfigurationMode(camera3_stream_configuration_mode_t operationMode,
+            /*out*/ hardware::camera::device::V3_2::StreamConfigurationMode *mode);
+    static camera3_buffer_status_t mapHidlBufferStatus(hardware::camera::device::V3_2::BufferStatus status);
+    static int mapToFrameworkFormat(hardware::graphics::common::V1_0::PixelFormat pixelFormat);
+    static uint32_t mapConsumerToFrameworkUsage(
+            hardware::camera::device::V3_2::BufferUsageFlags usage);
+    static uint32_t mapProducerToFrameworkUsage(
+            hardware::camera::device::V3_2::BufferUsageFlags usage);
 
     struct RequestTrigger {
         // Metadata tag number, e.g. android.control.aePrecaptureTrigger
@@ -457,8 +624,8 @@
 
         RequestThread(wp<Camera3Device> parent,
                 sp<camera3::StatusTracker> statusTracker,
-                camera3_device_t *hal3Device,
-                bool aeLockAvailable);
+                HalInterface* interface);
+        ~RequestThread();
 
         void     setNotificationListener(wp<NotificationListener> listener);
 
@@ -533,12 +700,17 @@
          */
         bool isStreamPending(sp<camera3::Camera3StreamInterface>& stream);
 
+        // dump processCaptureRequest latency
+        void dumpCaptureRequestLatency(int fd, const char* name) {
+            mRequestLatency.dump(fd, name);
+        }
+
       protected:
 
         virtual bool threadLoop();
 
       private:
-        static int         getId(const wp<Camera3Device> &device);
+        static const String8& getId(const wp<Camera3Device> &device);
 
         status_t           queueTriggerLocked(RequestTrigger trigger);
         // Mix-in queued triggers into this request
@@ -589,21 +761,24 @@
         void               setErrorState(const char *fmt, ...);
 
         // If the input request is in mRepeatingRequests. Must be called with mRequestLock hold
-        bool isRepeatingRequestLocked(const sp<CaptureRequest>);
-
-        // Handle AE precapture trigger cancel for devices <= CAMERA_DEVICE_API_VERSION_3_2.
-        void handleAePrecaptureCancelRequest(sp<CaptureRequest> request);
+        bool isRepeatingRequestLocked(const sp<CaptureRequest>&);
 
         // Clear repeating requests. Must be called with mRequestLock held.
         status_t clearRepeatingRequestsLocked(/*out*/ int64_t *lastFrameNumber = NULL);
 
+        // send request in mNextRequests to HAL one by one. Return true = sucssess
+        bool sendRequestsOneByOne();
+
+        // send request in mNextRequests to HAL in a batch. Return true = sucssess
+        bool sendRequestsBatch();
+
         wp<Camera3Device>  mParent;
         wp<camera3::StatusTracker>  mStatusTracker;
-        camera3_device_t  *mHal3Device;
+        HalInterface*      mInterface;
 
         wp<NotificationListener> mListener;
 
-        const int          mId;       // The camera ID
+        const String8&     mId;       // The camera ID
         int                mStatusId; // The RequestThread's component ID for
                                       // status tracking
 
@@ -649,11 +824,11 @@
 
         int64_t            mRepeatingLastFrameNumber;
 
-        // Whether the device supports AE lock
-        bool               mAeLockAvailable;
-
         // Flag indicating if we should prepare video stream for video requests.
         bool               mPrepareVideoStream;
+
+        static const int32_t kRequestLatencyBinSize = 40; // in ms
+        CameraLatencyHistogram mRequestLatency;
     };
     sp<RequestThread> mRequestThread;
 
@@ -692,9 +867,11 @@
         // the shutter event.
         Vector<camera3_stream_buffer_t> pendingOutputBuffers;
 
-        // Used to cancel AE precapture trigger for devices doesn't support
-        // CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL
-        AeTriggerCancelOverride_t aeTriggerCancelOverride;
+        // Whether this inflight request's shutter and result callback are to be
+        // called. The policy is that if the request is the last one in the constrained
+        // high speed recording request list, this flag will be true. If the request list
+        // is not for constrained high speed recording, this flag will also be true.
+        bool hasCallback;
 
         // Default constructor needed by KeyedVector
         InFlightRequest() :
@@ -704,11 +881,11 @@
                 haveResultMetadata(false),
                 numBuffersLeft(0),
                 hasInputBuffer(false),
-                aeTriggerCancelOverride({false, 0, false, 0}){
+                hasCallback(true) {
         }
 
         InFlightRequest(int numBuffers, CaptureResultExtras extras, bool hasInput,
-                AeTriggerCancelOverride aeTriggerCancelOverride) :
+                bool hasAppCallback) :
                 shutterTimestamp(0),
                 sensorTimestamp(0),
                 requestStatus(OK),
@@ -716,7 +893,7 @@
                 numBuffersLeft(numBuffers),
                 resultExtras(extras),
                 hasInputBuffer(hasInput),
-                aeTriggerCancelOverride(aeTriggerCancelOverride){
+                hasCallback(hasAppCallback) {
         }
     };
 
@@ -729,14 +906,7 @@
 
     status_t registerInFlight(uint32_t frameNumber,
             int32_t numBuffers, CaptureResultExtras resultExtras, bool hasInput,
-            const AeTriggerCancelOverride_t &aeTriggerCancelOverride);
-
-    /**
-     * Override result metadata for cancelling AE precapture trigger applied in
-     * handleAePrecaptureCancelRequest().
-     */
-    void overrideResultForPrecaptureCancel(CameraMetadata* result,
-            const AeTriggerCancelOverride_t &aeTriggerCancelOverride);
+            bool callback);
 
     /**
      * Tracking for idle detection
@@ -831,21 +1001,19 @@
 
     // Send a partial capture result.
     void sendPartialCaptureResult(const camera_metadata_t * partialResult,
-            const CaptureResultExtras &resultExtras, uint32_t frameNumber,
-            const AeTriggerCancelOverride_t &aeTriggerCancelOverride);
+            const CaptureResultExtras &resultExtras, uint32_t frameNumber);
 
     // Send a total capture result given the pending metadata and result extras,
     // partial results, and the frame number to the result queue.
     void sendCaptureResult(CameraMetadata &pendingMetadata,
             CaptureResultExtras &resultExtras,
             CameraMetadata &collectedPartialResult, uint32_t frameNumber,
-            bool reprocess, const AeTriggerCancelOverride_t &aeTriggerCancelOverride);
+            bool reprocess);
 
     // Insert the result to the result queue after updating frame number and overriding AE
     // trigger cancel.
     // mOutputLock must be held when calling this function.
-    void insertResultLocked(CaptureResult *result, uint32_t frameNumber,
-            const AeTriggerCancelOverride_t &aeTriggerCancelOverride);
+    void insertResultLocked(CaptureResult *result, uint32_t frameNumber);
 
     /**** Scope for mInFlightLock ****/
 
@@ -868,6 +1036,8 @@
     void monitorMetadata(TagMonitor::eventSource source, int64_t frameNumber,
             nsecs_t timestamp, const CameraMetadata& metadata);
 
+    metadata_vendor_id_t mVendorTagId;
+
     /**
      * Static callback forwarding methods from HAL to instance
      */
diff --git a/services/camera/libcameraservice/device3/Camera3DummyStream.cpp b/services/camera/libcameraservice/device3/Camera3DummyStream.cpp
index 5123785..9c951b7 100644
--- a/services/camera/libcameraservice/device3/Camera3DummyStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3DummyStream.cpp
@@ -36,7 +36,8 @@
 
 }
 
-status_t Camera3DummyStream::getBufferLocked(camera3_stream_buffer *) {
+status_t Camera3DummyStream::getBufferLocked(camera3_stream_buffer *,
+        const std::vector<size_t>&) {
     ATRACE_CALL();
     ALOGE("%s: Stream %d: Dummy stream cannot produce buffers!", __FUNCTION__, mId);
     return INVALID_OPERATION;
@@ -103,13 +104,13 @@
     return false;
 }
 
-bool Camera3DummyStream::isConsumerConfigurationDeferred() const {
+bool Camera3DummyStream::isConsumerConfigurationDeferred(size_t /*surface_id*/) const {
     return false;
 }
 
-status_t Camera3DummyStream::setConsumer(sp<Surface> consumer) {
-    ALOGE("%s: Stream %d: Dummy stream doesn't support set consumer surface %p!",
-            __FUNCTION__, mId, consumer.get());
+status_t Camera3DummyStream::setConsumers(const std::vector<sp<Surface>>& /*consumers*/) {
+    ALOGE("%s: Stream %d: Dummy stream doesn't support set consumer surface!",
+            __FUNCTION__, mId);
     return INVALID_OPERATION;
 }
 }; // namespace camera3
diff --git a/services/camera/libcameraservice/device3/Camera3DummyStream.h b/services/camera/libcameraservice/device3/Camera3DummyStream.h
index 639619e..35a6a18 100644
--- a/services/camera/libcameraservice/device3/Camera3DummyStream.h
+++ b/services/camera/libcameraservice/device3/Camera3DummyStream.h
@@ -42,7 +42,7 @@
      * Set up a dummy stream; doesn't actually connect to anything, and uses
      * a default dummy format and size.
      */
-    Camera3DummyStream(int id);
+    explicit Camera3DummyStream(int id);
 
     virtual ~Camera3DummyStream();
 
@@ -64,12 +64,12 @@
     /**
      * Return if the consumer configuration of this stream is deferred.
      */
-    virtual bool isConsumerConfigurationDeferred() const;
+    virtual bool isConsumerConfigurationDeferred(size_t surface_id) const;
 
     /**
-     * Set the consumer surface to the output stream.
+     * Set the consumer surfaces to the output stream.
      */
-    virtual status_t setConsumer(sp<Surface> consumer);
+    virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers);
 
   protected:
 
@@ -99,7 +99,8 @@
     /**
      * Internal Camera3Stream interface
      */
-    virtual status_t getBufferLocked(camera3_stream_buffer *buffer);
+    virtual status_t getBufferLocked(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids = std::vector<size_t>());
     virtual status_t returnBufferLocked(
             const camera3_stream_buffer &buffer,
             nsecs_t timestamp);
diff --git a/services/camera/libcameraservice/device3/Camera3IOStreamBase.cpp b/services/camera/libcameraservice/device3/Camera3IOStreamBase.cpp
index cb39244..7ad2300 100644
--- a/services/camera/libcameraservice/device3/Camera3IOStreamBase.cpp
+++ b/services/camera/libcameraservice/device3/Camera3IOStreamBase.cpp
@@ -85,6 +85,8 @@
     lines.appendFormat("      Total buffers: %zu, currently dequeued: %zu\n",
             mTotalBufferCount, mHandoutTotalBufferCount);
     write(fd, lines.string(), lines.size());
+
+    Camera3Stream::dump(fd, args);
 }
 
 status_t Camera3IOStreamBase::configureQueueLocked() {
diff --git a/services/camera/libcameraservice/device3/Camera3InputStream.cpp b/services/camera/libcameraservice/device3/Camera3InputStream.cpp
index f781ded..4eb15ad 100644
--- a/services/camera/libcameraservice/device3/Camera3InputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3InputStream.cpp
@@ -85,6 +85,9 @@
                         /*releaseFence*/-1, CAMERA3_BUFFER_STATUS_OK, /*output*/false);
     mBuffersInFlight.push_back(bufferItem);
 
+    mFrameCount++;
+    mLastTimestamp = bufferItem.mTimestamp;
+
     return OK;
 }
 
@@ -220,6 +223,7 @@
 
     mHandoutTotalBufferCount = 0;
     mFrameCount = 0;
+    mLastTimestamp = 0;
 
     if (mConsumer.get() == 0) {
         sp<IGraphicBufferProducer> producer;
@@ -259,6 +263,8 @@
         mConsumer->setName(String8::format("Camera3-InputStream-%d", mId));
 
         mProducer = producer;
+
+        mConsumer->setBufferFreedListener(this);
     }
 
     res = mConsumer->setDefaultBufferSize(camera3_stream::width,
@@ -284,6 +290,17 @@
     return OK;
 }
 
+void Camera3InputStream::onBufferFreed(const wp<GraphicBuffer>& gb) {
+    const sp<GraphicBuffer> buffer = gb.promote();
+    if (buffer != nullptr) {
+        if (mBufferFreedListener != nullptr) {
+            mBufferFreedListener->onBufferFreed(mId, buffer->handle);
+        }
+    } else {
+        ALOGE("%s: GraphicBuffer is freed before onBufferFreed callback finishes!", __FUNCTION__);
+    }
+}
+
 }; // namespace camera3
 
 }; // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3InputStream.h b/services/camera/libcameraservice/device3/Camera3InputStream.h
index 9f3de10..8f5b431 100644
--- a/services/camera/libcameraservice/device3/Camera3InputStream.h
+++ b/services/camera/libcameraservice/device3/Camera3InputStream.h
@@ -34,7 +34,8 @@
  * buffers by feeding them into the HAL, as well as releasing the buffers back
  * the buffers once the HAL is done with them.
  */
-class Camera3InputStream : public Camera3IOStreamBase {
+class Camera3InputStream : public Camera3IOStreamBase,
+                           public BufferItemConsumer::BufferFreedListener {
   public:
     /**
      * Set up a stream for formats that have fixed size, such as RAW and YUV.
@@ -77,6 +78,11 @@
 
     virtual status_t getEndpointUsage(uint32_t *usage) const;
 
+    /**
+     * BufferItemConsumer::BufferFreedListener interface
+     */
+    virtual void onBufferFreed(const wp<GraphicBuffer>&) override;
+
 }; // class Camera3InputStream
 
 }; // namespace camera3
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
index 7229929..e15aa43 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
@@ -43,7 +43,8 @@
         mTraceFirstBuffer(true),
         mUseBufferManager(false),
         mTimestampOffset(timestampOffset),
-        mConsumerUsage(0) {
+        mConsumerUsage(0),
+        mDequeueBufferLatency(kDequeueLatencyBinSize) {
 
     if (mConsumer == NULL) {
         ALOGE("%s: Consumer is NULL!", __FUNCTION__);
@@ -68,7 +69,8 @@
         mUseMonoTimestamp(false),
         mUseBufferManager(false),
         mTimestampOffset(timestampOffset),
-        mConsumerUsage(0) {
+        mConsumerUsage(0),
+        mDequeueBufferLatency(kDequeueLatencyBinSize) {
 
     if (format != HAL_PIXEL_FORMAT_BLOB && format != HAL_PIXEL_FORMAT_RAW_OPAQUE) {
         ALOGE("%s: Bad format for size-only stream: %d", __FUNCTION__,
@@ -97,7 +99,8 @@
         mTraceFirstBuffer(true),
         mUseBufferManager(false),
         mTimestampOffset(timestampOffset),
-        mConsumerUsage(consumerUsage) {
+        mConsumerUsage(consumerUsage),
+        mDequeueBufferLatency(kDequeueLatencyBinSize) {
     // Deferred consumer only support preview surface format now.
     if (format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) {
         ALOGE("%s: Deferred consumer only supports IMPLEMENTATION_DEFINED format now!",
@@ -124,6 +127,7 @@
                                          int format,
                                          android_dataspace dataSpace,
                                          camera3_stream_rotation_t rotation,
+                                         uint32_t consumerUsage, nsecs_t timestampOffset,
                                          int setId) :
         Camera3IOStreamBase(id, type, width, height,
                             /*maxSize*/0,
@@ -132,7 +136,9 @@
         mTraceFirstBuffer(true),
         mUseMonoTimestamp(false),
         mUseBufferManager(false),
-        mConsumerUsage(0) {
+        mTimestampOffset(timestampOffset),
+        mConsumerUsage(consumerUsage),
+        mDequeueBufferLatency(kDequeueLatencyBinSize) {
 
     if (setId > CAMERA3_STREAM_SET_ID_INVALID) {
         mBufferReleasedListener = new BufferReleasedListener(this);
@@ -146,73 +152,17 @@
     disconnectLocked();
 }
 
-status_t Camera3OutputStream::getBufferLocked(camera3_stream_buffer *buffer) {
+status_t Camera3OutputStream::getBufferLocked(camera3_stream_buffer *buffer,
+        const std::vector<size_t>&) {
     ATRACE_CALL();
-    status_t res;
-
-    if ((res = getBufferPreconditionCheckLocked()) != OK) {
-        return res;
-    }
 
     ANativeWindowBuffer* anb;
     int fenceFd = -1;
-    bool gotBufferFromManager = false;
 
-    if (mUseBufferManager) {
-        sp<GraphicBuffer> gb;
-        res = mBufferManager->getBufferForStream(getId(), getStreamSetId(), &gb, &fenceFd);
-        if (res == OK) {
-            // Attach this buffer to the bufferQueue: the buffer will be in dequeue state after a
-            // successful return.
-            anb = gb.get();
-            res = mConsumer->attachBuffer(anb);
-            if (res != OK) {
-                ALOGE("%s: Stream %d: Can't attach the output buffer to this surface: %s (%d)",
-                        __FUNCTION__, mId, strerror(-res), res);
-                return res;
-            }
-            gotBufferFromManager = true;
-            ALOGV("Stream %d: Attached new buffer", getId());
-        } else if (res == ALREADY_EXISTS) {
-            // Have sufficient free buffers already attached, can just
-            // dequeue from buffer queue
-            ALOGV("Stream %d: Reusing attached buffer", getId());
-            gotBufferFromManager = false;
-        } else if (res != OK) {
-            ALOGE("%s: Stream %d: Can't get next output buffer from buffer manager: %s (%d)",
-                    __FUNCTION__, mId, strerror(-res), res);
-            return res;
-        }
-    }
-    if (!gotBufferFromManager) {
-        /**
-         * Release the lock briefly to avoid deadlock for below scenario:
-         * Thread 1: StreamingProcessor::startStream -> Camera3Stream::isConfiguring().
-         * This thread acquired StreamingProcessor lock and try to lock Camera3Stream lock.
-         * Thread 2: Camera3Stream::returnBuffer->StreamingProcessor::onFrameAvailable().
-         * This thread acquired Camera3Stream lock and bufferQueue lock, and try to lock
-         * StreamingProcessor lock.
-         * Thread 3: Camera3Stream::getBuffer(). This thread acquired Camera3Stream lock
-         * and try to lock bufferQueue lock.
-         * Then there is circular locking dependency.
-         */
-        sp<ANativeWindow> currentConsumer = mConsumer;
-        mLock.unlock();
-
-        res = currentConsumer->dequeueBuffer(currentConsumer.get(), &anb, &fenceFd);
-        mLock.lock();
-        if (res != OK) {
-            ALOGE("%s: Stream %d: Can't dequeue next output buffer: %s (%d)",
-                    __FUNCTION__, mId, strerror(-res), res);
-
-            // Only transition to STATE_ABANDONED from STATE_CONFIGURED. (If it is STATE_PREPARING,
-            // let prepareNextBuffer handle the error.)
-            if (res == NO_INIT && mState == STATE_CONFIGURED) {
-                mState = STATE_ABANDONED;
-            }
-
-            return res;
-        }
+    status_t res;
+    res = getBufferLockedCommon(&anb, &fenceFd);
+    if (res != OK) {
+        return res;
     }
 
     /**
@@ -225,6 +175,11 @@
     return OK;
 }
 
+status_t Camera3OutputStream::queueBufferToConsumer(sp<ANativeWindow>& consumer,
+            ANativeWindowBuffer* buffer, int anwReleaseFence) {
+    return consumer->queueBuffer(consumer.get(), buffer, anwReleaseFence);
+}
+
 status_t Camera3OutputStream::returnBufferLocked(
         const camera3_stream_buffer &buffer,
         nsecs_t timestamp) {
@@ -237,6 +192,7 @@
     }
 
     mLastTimestamp = timestamp;
+    mFrameCount++;
 
     return OK;
 }
@@ -266,6 +222,7 @@
     sp<ANativeWindow> currentConsumer = mConsumer;
     mLock.unlock();
 
+    ANativeWindowBuffer *anwBuffer = container_of(buffer.buffer, ANativeWindowBuffer, handle);
     /**
      * Return buffer back to ANativeWindow
      */
@@ -273,13 +230,14 @@
         // Cancel buffer
         ALOGW("A frame is dropped for stream %d", mId);
         res = currentConsumer->cancelBuffer(currentConsumer.get(),
-                container_of(buffer.buffer, ANativeWindowBuffer, handle),
+                anwBuffer,
                 anwReleaseFence);
         if (res != OK) {
             ALOGE("%s: Stream %d: Error cancelling buffer to native window:"
                   " %s (%d)", __FUNCTION__, mId, strerror(-res), res);
         }
 
+        notifyBufferReleased(anwBuffer);
         if (mUseBufferManager) {
             // Return this buffer back to buffer manager.
             mBufferReleasedListener->onBufferReleased();
@@ -305,9 +263,7 @@
             return res;
         }
 
-        res = currentConsumer->queueBuffer(currentConsumer.get(),
-                container_of(buffer.buffer, ANativeWindowBuffer, handle),
-                anwReleaseFence);
+        res = queueBufferToConsumer(currentConsumer, anwBuffer, anwReleaseFence);
         if (res != OK) {
             ALOGE("%s: Stream %d: Error queueing buffer to native window: "
                   "%s (%d)", __FUNCTION__, mId, strerror(-res), res);
@@ -338,6 +294,9 @@
     write(fd, lines.string(), lines.size());
 
     Camera3IOStreamBase::dump(fd, args);
+
+    mDequeueBufferLatency.dump(fd,
+        "      DequeueBuffer latency histogram:");
 }
 
 status_t Camera3OutputStream::setTransform(int transform) {
@@ -373,11 +332,31 @@
         return res;
     }
 
+    if ((res = configureConsumerQueueLocked()) != OK) {
+        return res;
+    }
+
+    // Set dequeueBuffer/attachBuffer timeout if the consumer is not hw composer or hw texture.
+    // We need skip these cases as timeout will disable the non-blocking (async) mode.
+    if (!(isConsumedByHWComposer() || isConsumedByHWTexture())) {
+        mConsumer->setDequeueTimeout(kDequeueBufferTimeout);
+    }
+
+    return OK;
+}
+
+status_t Camera3OutputStream::configureConsumerQueueLocked() {
+    status_t res;
+
+    mTraceFirstBuffer = true;
+
     ALOG_ASSERT(mConsumer != 0, "mConsumer should never be NULL");
 
     // Configure consumer-side ANativeWindow interface. The listener may be used
     // to notify buffer manager (if it is used) of the returned buffers.
-    res = mConsumer->connect(NATIVE_WINDOW_API_CAMERA, /*listener*/mBufferReleasedListener);
+    res = mConsumer->connect(NATIVE_WINDOW_API_CAMERA,
+            /*listener*/mBufferReleasedListener,
+            /*reportBufferRemoval*/true);
     if (res != OK) {
         ALOGE("%s: Unable to connect to native window for stream %d",
                 __FUNCTION__, mId);
@@ -470,12 +449,7 @@
     if (res != OK) {
         ALOGE("%s: Unable to configure stream transform to %x: %s (%d)",
                 __FUNCTION__, mTransform, strerror(-res), res);
-    }
-
-    // Set dequeueBuffer/attachBuffer timeout if the consumer is not hw composer or hw texture.
-    // We need skip these cases as timeout will disable the non-blocking (async) mode.
-    if (!(isConsumedByHWComposer() || isConsumedByHWTexture())) {
-        mConsumer->setDequeueTimeout(kDequeueBufferTimeout);
+        return res;
     }
 
     /**
@@ -511,6 +485,92 @@
     return OK;
 }
 
+status_t Camera3OutputStream::getBufferLockedCommon(ANativeWindowBuffer** anb, int* fenceFd) {
+    ATRACE_CALL();
+    status_t res;
+
+    if ((res = getBufferPreconditionCheckLocked()) != OK) {
+        return res;
+    }
+
+    bool gotBufferFromManager = false;
+
+    if (mUseBufferManager) {
+        sp<GraphicBuffer> gb;
+        res = mBufferManager->getBufferForStream(getId(), getStreamSetId(), &gb, fenceFd);
+        if (res == OK) {
+            // Attach this buffer to the bufferQueue: the buffer will be in dequeue state after a
+            // successful return.
+            *anb = gb.get();
+            res = mConsumer->attachBuffer(*anb);
+            if (res != OK) {
+                ALOGE("%s: Stream %d: Can't attach the output buffer to this surface: %s (%d)",
+                        __FUNCTION__, mId, strerror(-res), res);
+                return res;
+            }
+            gotBufferFromManager = true;
+            ALOGV("Stream %d: Attached new buffer", getId());
+        } else if (res == ALREADY_EXISTS) {
+            // Have sufficient free buffers already attached, can just
+            // dequeue from buffer queue
+            ALOGV("Stream %d: Reusing attached buffer", getId());
+            gotBufferFromManager = false;
+        } else if (res != OK) {
+            ALOGE("%s: Stream %d: Can't get next output buffer from buffer manager: %s (%d)",
+                    __FUNCTION__, mId, strerror(-res), res);
+            return res;
+        }
+    }
+    if (!gotBufferFromManager) {
+        /**
+         * Release the lock briefly to avoid deadlock for below scenario:
+         * Thread 1: StreamingProcessor::startStream -> Camera3Stream::isConfiguring().
+         * This thread acquired StreamingProcessor lock and try to lock Camera3Stream lock.
+         * Thread 2: Camera3Stream::returnBuffer->StreamingProcessor::onFrameAvailable().
+         * This thread acquired Camera3Stream lock and bufferQueue lock, and try to lock
+         * StreamingProcessor lock.
+         * Thread 3: Camera3Stream::getBuffer(). This thread acquired Camera3Stream lock
+         * and try to lock bufferQueue lock.
+         * Then there is circular locking dependency.
+         */
+        sp<ANativeWindow> currentConsumer = mConsumer;
+        mLock.unlock();
+
+        nsecs_t dequeueStart = systemTime(SYSTEM_TIME_MONOTONIC);
+        res = currentConsumer->dequeueBuffer(currentConsumer.get(), anb, fenceFd);
+        nsecs_t dequeueEnd = systemTime(SYSTEM_TIME_MONOTONIC);
+        mDequeueBufferLatency.add(dequeueStart, dequeueEnd);
+
+        mLock.lock();
+        if (res != OK) {
+            ALOGE("%s: Stream %d: Can't dequeue next output buffer: %s (%d)",
+                    __FUNCTION__, mId, strerror(-res), res);
+
+            // Only transition to STATE_ABANDONED from STATE_CONFIGURED. (If it is STATE_PREPARING,
+            // let prepareNextBuffer handle the error.)
+            if (res == NO_INIT && mState == STATE_CONFIGURED) {
+                mState = STATE_ABANDONED;
+            }
+
+            return res;
+        }
+    }
+
+    if (res == OK) {
+        std::vector<sp<GraphicBuffer>> removedBuffers;
+        res = mConsumer->getAndFlushRemovedBuffers(&removedBuffers);
+        if (res == OK) {
+            onBuffersRemovedLocked(removedBuffers);
+
+            if (mUseBufferManager && removedBuffers.size() > 0) {
+                mBufferManager->onBuffersRemoved(getId(), getStreamSetId(), removedBuffers.size());
+            }
+        }
+    }
+
+    return res;
+}
+
 status_t Camera3OutputStream::disconnectLocked() {
     status_t res;
 
@@ -562,20 +622,33 @@
 
     mState = (mState == STATE_IN_RECONFIG) ? STATE_IN_CONFIG
                                            : STATE_CONSTRUCTED;
+
+    mDequeueBufferLatency.log("Stream %d dequeueBuffer latency histogram", mId);
+    mDequeueBufferLatency.reset();
     return OK;
 }
 
 status_t Camera3OutputStream::getEndpointUsage(uint32_t *usage) const {
 
     status_t res;
-    int32_t u = 0;
+
     if (mConsumer == nullptr) {
         // mConsumerUsage was sanitized before the Camera3OutputStream was constructed.
         *usage = mConsumerUsage;
         return OK;
     }
 
-    res = static_cast<ANativeWindow*>(mConsumer.get())->query(mConsumer.get(),
+    res = getEndpointUsageForSurface(usage, mConsumer);
+
+    return res;
+}
+
+status_t Camera3OutputStream::getEndpointUsageForSurface(uint32_t *usage,
+        const sp<Surface>& surface) const {
+    status_t res;
+    int32_t u = 0;
+
+    res = static_cast<ANativeWindow*>(surface.get())->query(surface.get(),
             NATIVE_WINDOW_CONSUMER_USAGE_BITS, &u);
 
     // If an opaque output stream's endpoint is ImageReader, add
@@ -587,8 +660,8 @@
     //     3. GRALLOC_USAGE_HW_COMPOSER
     //     4. GRALLOC_USAGE_HW_VIDEO_ENCODER
     if (camera3_stream::format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED &&
-            (u & (GRALLOC_USAGE_HW_TEXTURE | GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_COMPOSER |
-            GRALLOC_USAGE_HW_VIDEO_ENCODER)) == 0) {
+            (u & (GRALLOC_USAGE_HW_TEXTURE | GRALLOC_USAGE_HW_RENDER |
+            GRALLOC_USAGE_HW_COMPOSER | GRALLOC_USAGE_HW_VIDEO_ENCODER)) == 0) {
         u |= GRALLOC_USAGE_HW_CAMERA_ZSL;
     }
 
@@ -632,18 +705,42 @@
     }
 
     ALOGV("Stream %d: Buffer released", stream->getId());
+    bool shouldFreeBuffer = false;
     status_t res = stream->mBufferManager->onBufferReleased(
-        stream->getId(), stream->getStreamSetId());
+        stream->getId(), stream->getStreamSetId(), &shouldFreeBuffer);
     if (res != OK) {
         ALOGE("%s: signaling buffer release to buffer manager failed: %s (%d).", __FUNCTION__,
                 strerror(-res), res);
         stream->mState = STATE_ERROR;
     }
+
+    if (shouldFreeBuffer) {
+        sp<GraphicBuffer> buffer;
+        // Detach and free a buffer (when buffer goes out of scope)
+        stream->detachBufferLocked(&buffer, /*fenceFd*/ nullptr);
+        if (buffer.get() != nullptr) {
+            stream->mBufferManager->notifyBufferRemoved(
+                    stream->getId(), stream->getStreamSetId());
+        }
+    }
+}
+
+void Camera3OutputStream::onBuffersRemovedLocked(
+        const std::vector<sp<GraphicBuffer>>& removedBuffers) {
+    Camera3StreamBufferFreedListener* callback = mBufferFreedListener;
+    if (callback != nullptr) {
+        for (auto gb : removedBuffers) {
+            callback->onBufferFreed(mId, gb->handle);
+        }
+    }
 }
 
 status_t Camera3OutputStream::detachBuffer(sp<GraphicBuffer>* buffer, int* fenceFd) {
     Mutex::Autolock l(mLock);
+    return detachBufferLocked(buffer, fenceFd);
+}
 
+status_t Camera3OutputStream::detachBufferLocked(sp<GraphicBuffer>* buffer, int* fenceFd) {
     ALOGV("Stream %d: detachBuffer", getId());
     if (buffer == nullptr) {
         return BAD_VALUE;
@@ -673,17 +770,36 @@
         }
     }
 
+    std::vector<sp<GraphicBuffer>> removedBuffers;
+    res = mConsumer->getAndFlushRemovedBuffers(&removedBuffers);
+    if (res == OK) {
+        onBuffersRemovedLocked(removedBuffers);
+    }
+    return res;
+}
+
+status_t Camera3OutputStream::notifyBufferReleased(ANativeWindowBuffer* /*anwBuffer*/) {
     return OK;
 }
 
-bool Camera3OutputStream::isConsumerConfigurationDeferred() const {
+bool Camera3OutputStream::isConsumerConfigurationDeferred(size_t surface_id) const {
     Mutex::Autolock l(mLock);
+
+    if (surface_id != 0) {
+        ALOGE("%s: surface_id %zu for Camera3OutputStream should be 0!", __FUNCTION__, surface_id);
+    }
     return mConsumer == nullptr;
 }
 
-status_t Camera3OutputStream::setConsumer(sp<Surface> consumer) {
-    if (consumer == nullptr) {
-        ALOGE("%s: it's illegal to set a null consumer surface!", __FUNCTION__);
+status_t Camera3OutputStream::setConsumers(const std::vector<sp<Surface>>& consumers) {
+    Mutex::Autolock l(mLock);
+    if (consumers.size() != 1) {
+        ALOGE("%s: it's illegal to set %zu consumer surfaces!",
+                  __FUNCTION__, consumers.size());
+        return INVALID_OPERATION;
+    }
+    if (consumers[0] == nullptr) {
+        ALOGE("%s: it's illegal to set null consumer surface!", __FUNCTION__);
         return INVALID_OPERATION;
     }
 
@@ -692,7 +808,7 @@
         return INVALID_OPERATION;
     }
 
-    mConsumer = consumer;
+    mConsumer = consumers[0];
     return OK;
 }
 
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.h b/services/camera/libcameraservice/device3/Camera3OutputStream.h
index d450a69..97aa7d4 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStream.h
+++ b/services/camera/libcameraservice/device3/Camera3OutputStream.h
@@ -21,6 +21,7 @@
 #include <gui/IProducerListener.h>
 #include <gui/Surface.h>
 
+#include "utils/LatencyHistogram.h"
 #include "Camera3Stream.h"
 #include "Camera3IOStreamBase.h"
 #include "Camera3OutputStreamInterface.h"
@@ -46,7 +47,7 @@
     uint32_t combinedUsage;
     size_t totalBufferCount;
     bool isConfigured;
-    StreamInfo(int id = CAMERA3_STREAM_ID_INVALID,
+    explicit StreamInfo(int id = CAMERA3_STREAM_ID_INVALID,
             int setId = CAMERA3_STREAM_SET_ID_INVALID,
             uint32_t w = 0,
             uint32_t h = 0,
@@ -135,12 +136,12 @@
     /**
      * Return if the consumer configuration of this stream is deferred.
      */
-    virtual bool isConsumerConfigurationDeferred() const;
+    virtual bool isConsumerConfigurationDeferred(size_t surface_id) const;
 
     /**
-     * Set the consumer surface to the output stream.
+     * Set the consumer surfaces to the output stream.
      */
-    virtual status_t setConsumer(sp<Surface> consumer);
+    virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers);
 
     class BufferReleasedListener : public BnProducerListener {
         public:
@@ -159,6 +160,12 @@
     virtual status_t detachBuffer(sp<GraphicBuffer>* buffer, int* fenceFd);
 
     /**
+     * Notify that the buffer is being released to the buffer queue instead of
+     * being queued to the consumer.
+     */
+    virtual status_t notifyBufferReleased(ANativeWindowBuffer *anwBuffer);
+
+    /**
      * Set the graphic buffer manager to get/return the stream buffers.
      *
      * It is only legal to call this method when stream is in STATE_CONSTRUCTED state.
@@ -169,6 +176,7 @@
     Camera3OutputStream(int id, camera3_stream_type_t type,
             uint32_t width, uint32_t height, int format,
             android_dataspace dataSpace, camera3_stream_rotation_t rotation,
+            uint32_t consumerUsage = 0, nsecs_t timestampOffset = 0,
             int setId = CAMERA3_STREAM_SET_ID_INVALID);
 
     /**
@@ -183,12 +191,22 @@
 
     virtual status_t disconnectLocked();
 
+    status_t getEndpointUsageForSurface(uint32_t *usage,
+            const sp<Surface>& surface) const;
+    status_t configureConsumerQueueLocked();
+
+    // Consumer as the output of camera HAL
     sp<Surface> mConsumer;
 
-  private:
+    uint32_t getPresetConsumerUsage() const { return mConsumerUsage; }
 
     static const nsecs_t       kDequeueBufferTimeout   = 1000000000; // 1 sec
 
+    status_t getBufferLockedCommon(ANativeWindowBuffer** anb, int* fenceFd);
+
+
+  private:
+
     int               mTransform;
 
     virtual status_t  setTransformLocked(int transform);
@@ -232,15 +250,29 @@
     /**
      * Internal Camera3Stream interface
      */
-    virtual status_t getBufferLocked(camera3_stream_buffer *buffer);
+    virtual status_t getBufferLocked(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids);
+
     virtual status_t returnBufferLocked(
             const camera3_stream_buffer &buffer,
             nsecs_t timestamp);
 
+    virtual status_t queueBufferToConsumer(sp<ANativeWindow>& consumer,
+            ANativeWindowBuffer* buffer, int anwReleaseFence);
+
     virtual status_t configureQueueLocked();
 
     virtual status_t getEndpointUsage(uint32_t *usage) const;
 
+    /**
+     * Private methods
+     */
+    void onBuffersRemovedLocked(const std::vector<sp<GraphicBuffer>>&);
+    status_t detachBufferLocked(sp<GraphicBuffer>* buffer, int* fenceFd);
+
+    static const int32_t kDequeueLatencyBinSize = 5; // in ms
+    CameraLatencyHistogram mDequeueBufferLatency;
+
 }; // class Camera3OutputStream
 
 } // namespace camera3
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h b/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h
index 3f83c89..8107dd0 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h
+++ b/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h
@@ -43,12 +43,12 @@
     /**
      * Return if the consumer configuration of this stream is deferred.
      */
-    virtual bool isConsumerConfigurationDeferred() const = 0;
+    virtual bool isConsumerConfigurationDeferred(size_t surface_id = 0) const = 0;
 
     /**
-     * Set the consumer surface to the output stream.
+     * Set the consumer surfaces to the output stream.
      */
-    virtual status_t setConsumer(sp<Surface> consumer) = 0;
+    virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers) = 0;
 
     /**
      * Detach an unused buffer from the stream.
diff --git a/services/camera/libcameraservice/device3/Camera3SharedOutputStream.cpp b/services/camera/libcameraservice/device3/Camera3SharedOutputStream.cpp
new file mode 100644
index 0000000..2ae5660
--- /dev/null
+++ b/services/camera/libcameraservice/device3/Camera3SharedOutputStream.cpp
@@ -0,0 +1,220 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Camera3SharedOutputStream.h"
+
+namespace android {
+
+namespace camera3 {
+
+Camera3SharedOutputStream::Camera3SharedOutputStream(int id,
+        const std::vector<sp<Surface>>& surfaces,
+        uint32_t width, uint32_t height, int format,
+        uint32_t consumerUsage, android_dataspace dataSpace,
+        camera3_stream_rotation_t rotation,
+        nsecs_t timestampOffset, int setId) :
+        Camera3OutputStream(id, CAMERA3_STREAM_OUTPUT, width, height,
+                            format, dataSpace, rotation, consumerUsage,
+                            timestampOffset, setId),
+        mSurfaces(surfaces) {
+}
+
+Camera3SharedOutputStream::~Camera3SharedOutputStream() {
+    disconnectLocked();
+}
+
+status_t Camera3SharedOutputStream::connectStreamSplitterLocked() {
+    status_t res = OK;
+
+    mStreamSplitter = new Camera3StreamSplitter();
+
+    uint32_t usage;
+    getEndpointUsage(&usage);
+
+    res = mStreamSplitter->connect(mSurfaces, usage, camera3_stream::max_buffers, &mConsumer);
+    if (res != OK) {
+        ALOGE("%s: Failed to connect to stream splitter: %s(%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
+
+    return res;
+}
+
+status_t Camera3SharedOutputStream::notifyBufferReleased(ANativeWindowBuffer *anwBuffer) {
+    Mutex::Autolock l(mLock);
+    status_t res = OK;
+    const sp<GraphicBuffer> buffer(static_cast<GraphicBuffer*>(anwBuffer));
+
+    if (mStreamSplitter != nullptr) {
+        res = mStreamSplitter->notifyBufferReleased(buffer);
+    }
+
+    return res;
+}
+
+bool Camera3SharedOutputStream::isConsumerConfigurationDeferred(size_t surface_id) const {
+    Mutex::Autolock l(mLock);
+    return (surface_id >= mSurfaces.size());
+}
+
+status_t Camera3SharedOutputStream::setConsumers(const std::vector<sp<Surface>>& surfaces) {
+    Mutex::Autolock l(mLock);
+    if (surfaces.size() == 0) {
+        ALOGE("%s: it's illegal to set zero consumer surfaces!", __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+
+    status_t ret = OK;
+    for (auto& surface : surfaces) {
+        if (surface == nullptr) {
+            ALOGE("%s: it's illegal to set a null consumer surface!", __FUNCTION__);
+            return INVALID_OPERATION;
+        }
+
+        mSurfaces.push_back(surface);
+
+        // Only call addOutput if the splitter has been connected.
+        if (mStreamSplitter != nullptr) {
+            ret = mStreamSplitter->addOutput(surface);
+            if (ret != OK) {
+                ALOGE("%s: addOutput failed with error code %d", __FUNCTION__, ret);
+                return ret;
+
+            }
+        }
+    }
+    return ret;
+}
+
+status_t Camera3SharedOutputStream::getBufferLocked(camera3_stream_buffer *buffer,
+        const std::vector<size_t>& surface_ids) {
+    ANativeWindowBuffer* anb;
+    int fenceFd = -1;
+
+    status_t res;
+    res = getBufferLockedCommon(&anb, &fenceFd);
+    if (res != OK) {
+        return res;
+    }
+
+    // Attach the buffer to the splitter output queues. This could block if
+    // the output queue doesn't have any empty slot. So unlock during the course
+    // of attachBufferToOutputs.
+    sp<Camera3StreamSplitter> splitter = mStreamSplitter;
+    mLock.unlock();
+    res = splitter->attachBufferToOutputs(anb, surface_ids);
+    mLock.lock();
+    if (res != OK) {
+        ALOGE("%s: Stream %d: Cannot attach stream splitter buffer to outputs: %s (%d)",
+                __FUNCTION__, mId, strerror(-res), res);
+        // Only transition to STATE_ABANDONED from STATE_CONFIGURED. (If it is STATE_PREPARING,
+        // let prepareNextBuffer handle the error.)
+        if (res == NO_INIT && mState == STATE_CONFIGURED) {
+            mState = STATE_ABANDONED;
+        }
+
+        return res;
+    }
+
+    /**
+     * FenceFD now owned by HAL except in case of error,
+     * in which case we reassign it to acquire_fence
+     */
+    handoutBufferLocked(*buffer, &(anb->handle), /*acquireFence*/fenceFd,
+                        /*releaseFence*/-1, CAMERA3_BUFFER_STATUS_OK, /*output*/true);
+
+    return OK;
+}
+
+status_t Camera3SharedOutputStream::queueBufferToConsumer(sp<ANativeWindow>& consumer,
+            ANativeWindowBuffer* buffer, int anwReleaseFence) {
+    status_t res = consumer->queueBuffer(consumer.get(), buffer, anwReleaseFence);
+
+    // After queuing buffer to the internal consumer queue, check whether the buffer is
+    // successfully queued to the output queues.
+    if (res == OK) {
+        res = mStreamSplitter->getOnFrameAvailableResult();
+        if (res != OK) {
+            ALOGE("%s: getOnFrameAvailable returns %d", __FUNCTION__, res);
+        }
+    } else {
+        ALOGE("%s: queueBufer failed %d", __FUNCTION__, res);
+    }
+
+    return res;
+}
+
+status_t Camera3SharedOutputStream::configureQueueLocked() {
+    status_t res;
+
+    if ((res = Camera3IOStreamBase::configureQueueLocked()) != OK) {
+        return res;
+    }
+
+    res = connectStreamSplitterLocked();
+    if (res != OK) {
+        ALOGE("Cannot connect to stream splitter: %s(%d)", strerror(-res), res);
+        return res;
+    }
+
+    res = configureConsumerQueueLocked();
+    if (res != OK) {
+        ALOGE("Failed to configureConsumerQueueLocked: %s(%d)", strerror(-res), res);
+        return res;
+    }
+
+    return OK;
+}
+
+status_t Camera3SharedOutputStream::disconnectLocked() {
+    status_t res;
+    res = Camera3OutputStream::disconnectLocked();
+
+    if (mStreamSplitter != nullptr) {
+        mStreamSplitter->disconnect();
+    }
+
+    return res;
+}
+
+status_t Camera3SharedOutputStream::getEndpointUsage(uint32_t *usage) const {
+
+    status_t res = OK;
+    uint32_t u = 0;
+
+    if (mConsumer == nullptr) {
+        // Called before shared buffer queue is constructed.
+        *usage = getPresetConsumerUsage();
+
+        for (auto surface : mSurfaces) {
+            if (surface != nullptr) {
+                res = getEndpointUsageForSurface(&u, surface);
+                *usage |= u;
+            }
+        }
+    } else {
+        // Called after shared buffer queue is constructed.
+        res = getEndpointUsageForSurface(&u, mConsumer);
+        *usage |= u;
+    }
+
+    return res;
+}
+
+} // namespace camera3
+
+} // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3SharedOutputStream.h b/services/camera/libcameraservice/device3/Camera3SharedOutputStream.h
new file mode 100644
index 0000000..7be0940
--- /dev/null
+++ b/services/camera/libcameraservice/device3/Camera3SharedOutputStream.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
+#define ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
+
+#include "Camera3StreamSplitter.h"
+#include "Camera3OutputStream.h"
+
+namespace android {
+
+namespace camera3 {
+
+class Camera3SharedOutputStream :
+        public Camera3OutputStream {
+public:
+    /**
+     * Set up a stream for formats that have 2 dimensions, with multiple
+     * surfaces. A valid stream set id needs to be set to support buffer
+     * sharing between multiple streams.
+     */
+    Camera3SharedOutputStream(int id, const std::vector<sp<Surface>>& surfaces,
+            uint32_t width, uint32_t height, int format,
+            uint32_t consumerUsage, android_dataspace dataSpace,
+            camera3_stream_rotation_t rotation, nsecs_t timestampOffset,
+            int setId = CAMERA3_STREAM_SET_ID_INVALID);
+
+    virtual ~Camera3SharedOutputStream();
+
+    virtual status_t notifyBufferReleased(ANativeWindowBuffer *buffer);
+
+    virtual bool isConsumerConfigurationDeferred(size_t surface_id) const;
+
+    virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers);
+
+private:
+    // Surfaces passed in constructor from app
+    std::vector<sp<Surface> > mSurfaces;
+
+    /**
+     * The Camera3StreamSplitter object this stream uses for stream
+     * sharing.
+     */
+    sp<Camera3StreamSplitter> mStreamSplitter;
+
+    /**
+     * Initialize stream splitter.
+     */
+    status_t connectStreamSplitterLocked();
+
+    /**
+     * Internal Camera3Stream interface
+     */
+    virtual status_t getBufferLocked(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids);
+
+    virtual status_t queueBufferToConsumer(sp<ANativeWindow>& consumer,
+            ANativeWindowBuffer* buffer, int anwReleaseFence);
+
+    virtual status_t configureQueueLocked();
+
+    virtual status_t disconnectLocked();
+
+    virtual status_t getEndpointUsage(uint32_t *usage) const;
+
+}; // class Camera3SharedOutputStream
+
+} // namespace camera3
+
+} // namespace android
+
+#endif // ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
diff --git a/services/camera/libcameraservice/device3/Camera3Stream.cpp b/services/camera/libcameraservice/device3/Camera3Stream.cpp
index 3ffd9d1..ba352c4 100644
--- a/services/camera/libcameraservice/device3/Camera3Stream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Stream.cpp
@@ -60,7 +60,8 @@
     mOldMaxBuffers(0),
     mPrepared(false),
     mPreparedBufferIdx(0),
-    mLastMaxCount(Camera3StreamInterface::ALLOCATE_PIPELINE_MAX) {
+    mLastMaxCount(Camera3StreamInterface::ALLOCATE_PIPELINE_MAX),
+    mBufferLimitLatency(kBufferLimitLatencyBinSize) {
 
     camera3_stream::stream_type = type;
     camera3_stream::width = width;
@@ -166,7 +167,7 @@
     return (mState == STATE_IN_CONFIG) || (mState == STATE_IN_RECONFIG);
 }
 
-status_t Camera3Stream::finishConfiguration(camera3_device *hal3Device) {
+status_t Camera3Stream::finishConfiguration() {
     ATRACE_CALL();
     Mutex::Autolock l(mLock);
     switch (mState) {
@@ -216,14 +217,6 @@
         return res;
     }
 
-    res = registerBuffersLocked(hal3Device);
-    if (res != OK) {
-        ALOGE("%s: Unable to register stream buffers with HAL: %s (%d)",
-                __FUNCTION__, strerror(-res), res);
-        mState = STATE_ERROR;
-        return res;
-    }
-
     mState = STATE_CONFIGURED;
 
     return res;
@@ -451,7 +444,8 @@
     return OK;
 }
 
-status_t Camera3Stream::getBuffer(camera3_stream_buffer *buffer) {
+status_t Camera3Stream::getBuffer(camera3_stream_buffer *buffer,
+        const std::vector<size_t>& surface_ids) {
     ATRACE_CALL();
     Mutex::Autolock l(mLock);
     status_t res = OK;
@@ -466,8 +460,11 @@
     // Wait for new buffer returned back if we are running into the limit.
     if (getHandoutOutputBufferCountLocked() == camera3_stream::max_buffers) {
         ALOGV("%s: Already dequeued max output buffers (%d), wait for next returned one.",
-                __FUNCTION__, camera3_stream::max_buffers);
+                        __FUNCTION__, camera3_stream::max_buffers);
+        nsecs_t waitStart = systemTime(SYSTEM_TIME_MONOTONIC);
         res = mOutputBufferReturnedSignal.waitRelative(mLock, kWaitForBufferDuration);
+        nsecs_t waitEnd = systemTime(SYSTEM_TIME_MONOTONIC);
+        mBufferLimitLatency.add(waitStart, waitEnd);
         if (res != OK) {
             if (res == TIMED_OUT) {
                 ALOGE("%s: wait for output buffer return timed out after %lldms (max_buffers %d)",
@@ -478,7 +475,7 @@
         }
     }
 
-    res = getBufferLocked(buffer);
+    res = getBufferLocked(buffer, surface_ids);
     if (res == OK) {
         fireBufferListenersLocked(*buffer, /*acquired*/true, /*output*/true);
         if (buffer->buffer) {
@@ -662,6 +659,9 @@
     ALOGV("%s: Stream %d: Disconnecting...", __FUNCTION__, mId);
     status_t res = disconnectLocked();
 
+    mBufferLimitLatency.log("Stream %d latency histogram for wait on max_buffers", mId);
+    mBufferLimitLatency.reset();
+
     if (res == -ENOTCONN) {
         // "Already disconnected" -- not an error
         return OK;
@@ -670,90 +670,15 @@
     }
 }
 
-status_t Camera3Stream::registerBuffersLocked(camera3_device *hal3Device) {
-    ATRACE_CALL();
-
-    /**
-     * >= CAMERA_DEVICE_API_VERSION_3_2:
-     *
-     * camera3_device_t->ops->register_stream_buffers() is not called and must
-     * be NULL.
-     */
-    if (hal3Device->common.version >= CAMERA_DEVICE_API_VERSION_3_2) {
-        ALOGV("%s: register_stream_buffers unused as of HAL3.2", __FUNCTION__);
-
-        if (hal3Device->ops->register_stream_buffers != NULL) {
-            ALOGE("%s: register_stream_buffers is deprecated in HAL3.2; "
-                    "must be set to NULL in camera3_device::ops", __FUNCTION__);
-            return INVALID_OPERATION;
-        }
-
-        return OK;
-    }
-
-    ALOGV("%s: register_stream_buffers using deprecated code path", __FUNCTION__);
-
-    status_t res;
-
-    size_t bufferCount = getBufferCountLocked();
-
-    Vector<buffer_handle_t*> buffers;
-    buffers.insertAt(/*prototype_item*/NULL, /*index*/0, bufferCount);
-
-    camera3_stream_buffer_set bufferSet = camera3_stream_buffer_set();
-    bufferSet.stream = this;
-    bufferSet.num_buffers = bufferCount;
-    bufferSet.buffers = buffers.editArray();
-
-    Vector<camera3_stream_buffer_t> streamBuffers;
-    streamBuffers.insertAt(camera3_stream_buffer_t(), /*index*/0, bufferCount);
-
-    // Register all buffers with the HAL. This means getting all the buffers
-    // from the stream, providing them to the HAL with the
-    // register_stream_buffers() method, and then returning them back to the
-    // stream in the error state, since they won't have valid data.
-    //
-    // Only registered buffers can be sent to the HAL.
-
-    uint32_t bufferIdx = 0;
-    for (; bufferIdx < bufferCount; bufferIdx++) {
-        res = getBufferLocked( &streamBuffers.editItemAt(bufferIdx) );
-        if (res != OK) {
-            ALOGE("%s: Unable to get buffer %d for registration with HAL",
-                    __FUNCTION__, bufferIdx);
-            // Skip registering, go straight to cleanup
-            break;
-        }
-
-        sp<Fence> fence = new Fence(streamBuffers[bufferIdx].acquire_fence);
-        fence->waitForever("Camera3Stream::registerBuffers");
-
-        buffers.editItemAt(bufferIdx) = streamBuffers[bufferIdx].buffer;
-    }
-    if (bufferIdx == bufferCount) {
-        // Got all buffers, register with HAL
-        ALOGV("%s: Registering %zu buffers with camera HAL",
-                __FUNCTION__, bufferCount);
-        ATRACE_BEGIN("camera3->register_stream_buffers");
-        res = hal3Device->ops->register_stream_buffers(hal3Device,
-                &bufferSet);
-        ATRACE_END();
-    }
-
-    // Return all valid buffers to stream, in ERROR state to indicate
-    // they weren't filled.
-    for (size_t i = 0; i < bufferIdx; i++) {
-        streamBuffers.editItemAt(i).release_fence = -1;
-        streamBuffers.editItemAt(i).status = CAMERA3_BUFFER_STATUS_ERROR;
-        returnBufferLocked(streamBuffers[i], 0);
-    }
-
-    mPrepared = true;
-
-    return res;
+void Camera3Stream::dump(int fd, const Vector<String16> &args) const
+{
+    (void)args;
+    mBufferLimitLatency.dump(fd,
+            "      Latency histogram for wait on max_buffers");
 }
 
-status_t Camera3Stream::getBufferLocked(camera3_stream_buffer *) {
+status_t Camera3Stream::getBufferLocked(camera3_stream_buffer *,
+        const std::vector<size_t>&) {
     ALOGE("%s: This type of stream does not support output", __FUNCTION__);
     return INVALID_OPERATION;
 }
@@ -818,6 +743,18 @@
     }
 }
 
+void Camera3Stream::setBufferFreedListener(
+        Camera3StreamBufferFreedListener* listener) {
+    Mutex::Autolock l(mLock);
+    // Only allow set listener during stream configuration because stream is guaranteed to be IDLE
+    // at this state, so setBufferFreedListener won't collide with onBufferFreed callbacks
+    if (mState != STATE_IN_CONFIG && mState != STATE_IN_RECONFIG) {
+        ALOGE("%s: listener must be set during stream configuration!",__FUNCTION__);
+        return;
+    }
+    mBufferFreedListener = listener;
+}
+
 }; // namespace camera3
 
 }; // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3Stream.h b/services/camera/libcameraservice/device3/Camera3Stream.h
index 1ff215d..b5a9c5d 100644
--- a/services/camera/libcameraservice/device3/Camera3Stream.h
+++ b/services/camera/libcameraservice/device3/Camera3Stream.h
@@ -25,6 +25,7 @@
 
 #include "hardware/camera3.h"
 
+#include "utils/LatencyHistogram.h"
 #include "Camera3StreamBufferListener.h"
 #include "Camera3StreamInterface.h"
 
@@ -144,6 +145,10 @@
     int               getFormat() const;
     android_dataspace getDataSpace() const;
 
+    camera3_stream*   asHalStream() override {
+        return this;
+    }
+
     /**
      * Start the stream configuration process. Returns a handle to the stream's
      * information to be passed into the HAL device's configure_streams call.
@@ -165,11 +170,10 @@
     bool             isConfiguring() const;
 
     /**
-     * Completes the stream configuration process. During this call, the stream
-     * may call the device's register_stream_buffers() method. The stream
-     * information structure returned by startConfiguration() may no longer be
-     * modified after this call, but can still be read until the destruction of
-     * the stream.
+     * Completes the stream configuration process. The stream information
+     * structure returned by startConfiguration() may no longer be modified
+     * after this call, but can still be read until the destruction of the
+     * stream.
      *
      * Returns:
      *   OK on a successful configuration
@@ -178,7 +182,7 @@
      *   INVALID_OPERATION in case connecting to the consumer failed or consumer
      *       doesn't exist yet.
      */
-    status_t         finishConfiguration(camera3_device *hal3Device);
+    status_t         finishConfiguration();
 
     /**
      * Cancels the stream configuration process. This returns the stream to the
@@ -274,12 +278,18 @@
      * Fill in the camera3_stream_buffer with the next valid buffer for this
      * stream, to hand over to the HAL.
      *
+     * Multiple surfaces could share the same HAL stream, but a request may
+     * be only for a subset of surfaces. In this case, the
+     * Camera3StreamInterface object needs the surface ID information to acquire
+     * buffers for those surfaces.
+     *
      * This method may only be called once finishConfiguration has been called.
      * For bidirectional streams, this method applies to the output-side
      * buffers.
      *
      */
-    status_t         getBuffer(camera3_stream_buffer *buffer);
+    status_t         getBuffer(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids = std::vector<size_t>());
 
     /**
      * Return a buffer to the stream after use by the HAL.
@@ -340,7 +350,7 @@
     /**
      * Debug dump of the stream's state.
      */
-    virtual void     dump(int fd, const Vector<String16> &args) const = 0;
+    virtual void     dump(int fd, const Vector<String16> &args) const;
 
     /**
      * Add a camera3 buffer listener. Adding the same listener twice has
@@ -356,6 +366,11 @@
     void             removeBufferListener(
             const sp<Camera3StreamBufferListener>& listener);
 
+
+    // Setting listener will remove previous listener (if exists)
+    virtual void     setBufferFreedListener(
+            Camera3StreamBufferFreedListener* listener) override;
+
     /**
      * Return if the buffer queue of the stream is abandoned.
      */
@@ -399,6 +414,8 @@
             android_dataspace dataSpace, camera3_stream_rotation_t rotation,
             int setId);
 
+    Camera3StreamBufferFreedListener* mBufferFreedListener;
+
     /**
      * Interface to be implemented by derived classes
      */
@@ -409,7 +426,8 @@
     // cast to camera3_stream*, implementations must increment the
     // refcount of the stream manually in getBufferLocked, and decrement it in
     // returnBufferLocked.
-    virtual status_t getBufferLocked(camera3_stream_buffer *buffer);
+    virtual status_t getBufferLocked(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids = std::vector<size_t>());
     virtual status_t returnBufferLocked(const camera3_stream_buffer &buffer,
             nsecs_t timestamp);
     virtual status_t getInputBufferLocked(camera3_stream_buffer *buffer);
@@ -457,9 +475,6 @@
     Condition mInputBufferReturnedSignal;
     static const nsecs_t kWaitForBufferDuration = 3000000000LL; // 3000 ms
 
-    // Gets all buffers from endpoint and registers them with the HAL.
-    status_t registerBuffersLocked(camera3_device *hal3Device);
-
     void fireBufferListenersLocked(const camera3_stream_buffer& buffer,
                                   bool acquired, bool output);
     List<wp<Camera3StreamBufferListener> > mBufferListenerList;
@@ -488,6 +503,10 @@
     // Outstanding buffers dequeued from the stream's buffer queue.
     List<buffer_handle_t> mOutstandingBuffers;
 
+    // Latency histogram of the wait time for handout buffer count to drop below
+    // max_buffers.
+    static const int32_t kBufferLimitLatencyBinSize = 33; //in ms
+    CameraLatencyHistogram mBufferLimitLatency;
 }; // class Camera3Stream
 
 }; // namespace camera3
diff --git a/services/camera/libcameraservice/device3/Camera3StreamBufferFreedListener.h b/services/camera/libcameraservice/device3/Camera3StreamBufferFreedListener.h
new file mode 100644
index 0000000..478a752
--- /dev/null
+++ b/services/camera/libcameraservice/device3/Camera3StreamBufferFreedListener.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SERVERS_CAMERA3_STREAMBUFFERFREEDLISTENER_H
+#define ANDROID_SERVERS_CAMERA3_STREAMBUFFERFREEDLISTENER_H
+
+#include <gui/Surface.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+namespace camera3 {
+
+class Camera3StreamBufferFreedListener {
+public:
+    // onBufferFreed is called when a buffer is no longer being managed
+    // by this stream. This will not be called in events when all
+    // buffers are freed due to stream disconnection.
+    //
+    // The input handle may be deleted after this callback ends, so attempting
+    // to dereference handle post this callback is illegal and might lead to
+    // crash.
+    //
+    // This callback will be called while holding Camera3Stream's lock, so
+    // calling into other Camera3Stream APIs within this callback will
+    // lead to deadlock.
+    virtual void onBufferFreed(int streamId, const native_handle_t* handle) = 0;
+
+    virtual ~Camera3StreamBufferFreedListener() {}
+};
+
+}; //namespace camera3
+}; //namespace android
+
+#endif
diff --git a/services/camera/libcameraservice/device3/Camera3StreamInterface.h b/services/camera/libcameraservice/device3/Camera3StreamInterface.h
index 6cb7a54..37b7c36 100644
--- a/services/camera/libcameraservice/device3/Camera3StreamInterface.h
+++ b/services/camera/libcameraservice/device3/Camera3StreamInterface.h
@@ -19,6 +19,7 @@
 
 #include <utils/RefBase.h>
 #include "Camera3StreamBufferListener.h"
+#include "Camera3StreamBufferFreedListener.h"
 
 struct camera3_stream_buffer;
 
@@ -72,6 +73,11 @@
     virtual android_dataspace getDataSpace() const = 0;
 
     /**
+     * Get a HAL3 handle for the stream, without starting stream configuration.
+     */
+    virtual camera3_stream* asHalStream() = 0;
+
+    /**
      * Start the stream configuration process. Returns a handle to the stream's
      * information to be passed into the HAL device's configure_streams call.
      *
@@ -104,7 +110,7 @@
      *   NO_MEMORY in case of an error registering buffers
      *   INVALID_OPERATION in case connecting to the consumer failed
      */
-    virtual status_t finishConfiguration(camera3_device *hal3Device) = 0;
+    virtual status_t finishConfiguration() = 0;
 
     /**
      * Cancels the stream configuration process. This returns the stream to the
@@ -195,12 +201,19 @@
      * Fill in the camera3_stream_buffer with the next valid buffer for this
      * stream, to hand over to the HAL.
      *
+     * Multiple surfaces could share the same HAL stream, but a request may
+     * be only for a subset of surfaces. In this case, the
+     * Camera3StreamInterface object needs the surface ID information to acquire
+     * buffers for those surfaces. For the case of single surface for a HAL
+     * stream, surface_ids parameter has no effect.
+     *
      * This method may only be called once finishConfiguration has been called.
      * For bidirectional streams, this method applies to the output-side
      * buffers.
      *
      */
-    virtual status_t getBuffer(camera3_stream_buffer *buffer) = 0;
+    virtual status_t getBuffer(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids = std::vector<size_t>()) = 0;
 
     /**
      * Return a buffer to the stream after use by the HAL.
@@ -275,6 +288,15 @@
             wp<Camera3StreamBufferListener> listener) = 0;
     virtual void     removeBufferListener(
             const sp<Camera3StreamBufferListener>& listener) = 0;
+
+    /**
+     * Setting listner will remove previous listener (if exists)
+     * Only allow set listener during stream configuration because stream is guaranteed to be IDLE
+     * at this state, so setBufferFreedListener won't collide with onBufferFreed callbacks.
+     * Client is responsible to keep the listener object alive throughout the lifecycle of this
+     * Camera3Stream.
+     */
+    virtual void setBufferFreedListener(Camera3StreamBufferFreedListener* listener) = 0;
 };
 
 } // namespace camera3
diff --git a/services/camera/libcameraservice/device3/Camera3StreamSplitter.cpp b/services/camera/libcameraservice/device3/Camera3StreamSplitter.cpp
new file mode 100644
index 0000000..869e93a
--- /dev/null
+++ b/services/camera/libcameraservice/device3/Camera3StreamSplitter.cpp
@@ -0,0 +1,564 @@
+/*
+ * Copyright 2014,2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <inttypes.h>
+
+#define LOG_TAG "Camera3StreamSplitter"
+#define ATRACE_TAG ATRACE_TAG_CAMERA
+//#define LOG_NDEBUG 0
+
+#include <gui/BufferItem.h>
+#include <gui/IGraphicBufferConsumer.h>
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/BufferQueue.h>
+#include <gui/Surface.h>
+
+#include <ui/GraphicBuffer.h>
+
+#include <binder/ProcessState.h>
+
+#include <utils/Trace.h>
+
+#include <cutils/atomic.h>
+
+#include "Camera3StreamSplitter.h"
+
+namespace android {
+
+status_t Camera3StreamSplitter::connect(const std::vector<sp<Surface> >& surfaces,
+        uint32_t consumerUsage, size_t halMaxBuffers, sp<Surface>* consumer) {
+    ATRACE_CALL();
+    if (consumer == nullptr) {
+        SP_LOGE("%s: consumer pointer is NULL", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    Mutex::Autolock lock(mMutex);
+    status_t res = OK;
+
+    if (mOutputs.size() > 0 || mConsumer != nullptr) {
+        SP_LOGE("%s: already connected", __FUNCTION__);
+        return BAD_VALUE;
+    }
+    if (mBuffers.size() > 0) {
+        SP_LOGE("%s: still has %zu pending buffers", __FUNCTION__, mBuffers.size());
+        return BAD_VALUE;
+    }
+
+    mMaxHalBuffers = halMaxBuffers;
+    mConsumerName = getUniqueConsumerName();
+    // Add output surfaces. This has to be before creating internal buffer queue
+    // in order to get max consumer side buffers.
+    for (size_t i = 0; i < surfaces.size(); i++) {
+        if (surfaces[i] == nullptr) {
+            SP_LOGE("%s: Fatal: surface is NULL", __FUNCTION__);
+            return BAD_VALUE;
+        }
+        res = addOutputLocked(surfaces[i]);
+        if (res != OK) {
+            SP_LOGE("%s: Failed to add output surface: %s(%d)",
+                    __FUNCTION__, strerror(-res), res);
+            return res;
+        }
+    }
+
+    // Create BufferQueue for input
+    BufferQueue::createBufferQueue(&mProducer, &mConsumer);
+
+    // Allocate 1 extra buffer to handle the case where all buffers are detached
+    // from input, and attached to the outputs. In this case, the input queue's
+    // dequeueBuffer can still allocate 1 extra buffer before being blocked by
+    // the output's attachBuffer().
+    mBufferItemConsumer = new BufferItemConsumer(mConsumer, consumerUsage,
+                                                 mMaxConsumerBuffers+1);
+    if (mBufferItemConsumer == nullptr) {
+        return NO_MEMORY;
+    }
+    mConsumer->setConsumerName(mConsumerName);
+
+    *consumer = new Surface(mProducer);
+    if (*consumer == nullptr) {
+        return NO_MEMORY;
+    }
+
+    res = mConsumer->consumerConnect(this, /* controlledByApp */ false);
+
+    SP_LOGV("%s: connected", __FUNCTION__);
+    return res;
+}
+
+status_t Camera3StreamSplitter::getOnFrameAvailableResult() {
+    ATRACE_CALL();
+    return mOnFrameAvailableRes.load();
+}
+
+void Camera3StreamSplitter::disconnect() {
+    ATRACE_CALL();
+    Mutex::Autolock lock(mMutex);
+
+    for (auto& notifier : mNotifiers) {
+        sp<IGraphicBufferProducer> producer = notifier.first;
+        sp<OutputListener> listener = notifier.second;
+        IInterface::asBinder(producer)->unlinkToDeath(listener);
+    }
+    mNotifiers.clear();
+
+    for (auto& output : mOutputs) {
+        output->disconnect(NATIVE_WINDOW_API_CAMERA);
+    }
+    mOutputs.clear();
+    mOutputSlots.clear();
+
+    mConsumer->consumerDisconnect();
+
+    if (mBuffers.size() > 0) {
+        SP_LOGW("%zu buffers still being tracked", mBuffers.size());
+        mBuffers.clear();
+    }
+
+    mMaxHalBuffers = 0;
+    mMaxConsumerBuffers = 0;
+    SP_LOGV("%s: Disconnected", __FUNCTION__);
+}
+
+
+Camera3StreamSplitter::~Camera3StreamSplitter() {
+    disconnect();
+}
+
+status_t Camera3StreamSplitter::addOutput(const sp<Surface>& outputQueue) {
+    ATRACE_CALL();
+    Mutex::Autolock lock(mMutex);
+    status_t res = addOutputLocked(outputQueue);
+
+    if (res != OK) {
+        SP_LOGE("%s: addOutputLocked failed %d", __FUNCTION__, res);
+        return res;
+    }
+
+    res = mConsumer->setMaxAcquiredBufferCount(mMaxConsumerBuffers+1);
+
+    return res;
+}
+
+status_t Camera3StreamSplitter::addOutputLocked(const sp<Surface>& outputQueue) {
+    ATRACE_CALL();
+    if (outputQueue == nullptr) {
+        SP_LOGE("addOutput: outputQueue must not be NULL");
+        return BAD_VALUE;
+    }
+
+    sp<IGraphicBufferProducer> gbp = outputQueue->getIGraphicBufferProducer();
+    // Connect to the buffer producer
+    sp<OutputListener> listener(new OutputListener(this, gbp));
+    IInterface::asBinder(gbp)->linkToDeath(listener);
+    status_t res = outputQueue->connect(NATIVE_WINDOW_API_CAMERA, listener);
+    if (res != NO_ERROR) {
+        SP_LOGE("addOutput: failed to connect (%d)", res);
+        return res;
+    }
+
+    // Query consumer side buffer count, and update overall buffer count
+    int maxConsumerBuffers = 0;
+    res = static_cast<ANativeWindow*>(outputQueue.get())->query(
+            outputQueue.get(),
+            NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &maxConsumerBuffers);
+    if (res != OK) {
+        SP_LOGE("%s: Unable to query consumer undequeued buffer count"
+              " for surface", __FUNCTION__);
+        return res;
+    }
+
+    SP_LOGV("%s: Consumer wants %d buffers, Producer wants %zu", __FUNCTION__,
+            maxConsumerBuffers, mMaxHalBuffers);
+    size_t totalBufferCount = maxConsumerBuffers + mMaxHalBuffers;
+    res = native_window_set_buffer_count(outputQueue.get(),
+            totalBufferCount);
+    if (res != OK) {
+        SP_LOGE("%s: Unable to set buffer count for surface %p",
+                __FUNCTION__, outputQueue.get());
+        return res;
+    }
+
+    // Set dequeueBuffer/attachBuffer timeout if the consumer is not hw composer or hw texture.
+    // We need skip these cases as timeout will disable the non-blocking (async) mode.
+    int32_t usage = 0;
+    static_cast<ANativeWindow*>(outputQueue.get())->query(
+            outputQueue.get(),
+            NATIVE_WINDOW_CONSUMER_USAGE_BITS, &usage);
+    if (!(usage & (GRALLOC_USAGE_HW_COMPOSER | GRALLOC_USAGE_HW_TEXTURE))) {
+        outputQueue->setDequeueTimeout(kDequeueBufferTimeout);
+    }
+
+    res = gbp->allowAllocation(false);
+    if (res != OK) {
+        SP_LOGE("%s: Failed to turn off allocation for outputQueue", __FUNCTION__);
+        return res;
+    }
+
+    // Add new entry into mOutputs
+    mOutputs.push_back(gbp);
+    mNotifiers[gbp] = listener;
+    mOutputSlots[gbp] = std::make_unique<OutputSlots>(totalBufferCount);
+
+    mMaxConsumerBuffers += maxConsumerBuffers;
+    return NO_ERROR;
+}
+
+status_t Camera3StreamSplitter::outputBufferLocked(const sp<IGraphicBufferProducer>& output,
+        const BufferItem& bufferItem) {
+    ATRACE_CALL();
+    status_t res;
+    IGraphicBufferProducer::QueueBufferInput queueInput(
+            bufferItem.mTimestamp, bufferItem.mIsAutoTimestamp,
+            bufferItem.mDataSpace, bufferItem.mCrop,
+            static_cast<int32_t>(bufferItem.mScalingMode),
+            bufferItem.mTransform, bufferItem.mFence);
+
+    IGraphicBufferProducer::QueueBufferOutput queueOutput;
+
+    uint64_t bufferId = bufferItem.mGraphicBuffer->getId();
+    const BufferTracker& tracker = *(mBuffers[bufferId]);
+    int slot = getSlotForOutputLocked(output, tracker.getBuffer());
+
+    // In case the output BufferQueue has its own lock, if we hold splitter lock while calling
+    // queueBuffer (which will try to acquire the output lock), the output could be holding its
+    // own lock calling releaseBuffer (which  will try to acquire the splitter lock), running into
+    // circular lock situation.
+    mMutex.unlock();
+    res = output->queueBuffer(slot, queueInput, &queueOutput);
+    mMutex.lock();
+
+    SP_LOGV("%s: Queuing buffer to buffer queue %p slot %d returns %d",
+            __FUNCTION__, output.get(), slot, res);
+    if (res != OK) {
+        if (res != NO_INIT && res != DEAD_OBJECT) {
+            SP_LOGE("Queuing buffer to output failed (%d)", res);
+        }
+        // If we just discovered that this output has been abandoned, note
+        // that, increment the release count so that we still release this
+        // buffer eventually, and move on to the next output
+        onAbandonedLocked();
+        decrementBufRefCountLocked(bufferItem.mGraphicBuffer->getId(), output);
+        return res;
+    }
+
+    // If the queued buffer replaces a pending buffer in the async
+    // queue, no onBufferReleased is called by the buffer queue.
+    // Proactively trigger the callback to avoid buffer loss.
+    if (queueOutput.bufferReplaced) {
+        onBufferReleasedByOutputLocked(output);
+    }
+
+    return res;
+}
+
+String8 Camera3StreamSplitter::getUniqueConsumerName() {
+    static volatile int32_t counter = 0;
+    return String8::format("Camera3StreamSplitter-%d", android_atomic_inc(&counter));
+}
+
+status_t Camera3StreamSplitter::notifyBufferReleased(const sp<GraphicBuffer>& buffer) {
+    ATRACE_CALL();
+    status_t res = OK;
+
+    Mutex::Autolock lock(mMutex);
+
+    uint64_t bufferId = buffer->getId();
+    std::unique_ptr<BufferTracker> tracker_ptr = std::move(mBuffers[bufferId]);
+    mBuffers.erase(bufferId);
+
+    for (const auto surface : tracker_ptr->requestedSurfaces()) {
+        sp<IGraphicBufferProducer>& gbp = mOutputs[surface];
+        OutputSlots& outputSlots = *(mOutputSlots[gbp]);
+        int slot = getSlotForOutputLocked(gbp, buffer);
+        if (slot != BufferItem::INVALID_BUFFER_SLOT) {
+             gbp->detachBuffer(slot);
+             outputSlots[slot].clear();
+        }
+    }
+
+    return res;
+}
+
+status_t Camera3StreamSplitter::attachBufferToOutputs(ANativeWindowBuffer* anb,
+        const std::vector<size_t>& surface_ids) {
+    ATRACE_CALL();
+    status_t res = OK;
+
+    Mutex::Autolock lock(mMutex);
+
+    sp<GraphicBuffer> gb(static_cast<GraphicBuffer*>(anb));
+    uint64_t bufferId = gb->getId();
+
+    // Initialize buffer tracker for this input buffer
+    auto tracker = std::make_unique<BufferTracker>(gb, surface_ids);
+
+    for (auto& surface_id : surface_ids) {
+        sp<IGraphicBufferProducer>& gbp = mOutputs[surface_id];
+        int slot = BufferItem::INVALID_BUFFER_SLOT;
+        //Temporarly Unlock the mutex when trying to attachBuffer to the output
+        //queue, because attachBuffer could block in case of a slow consumer. If
+        //we block while holding the lock, onFrameAvailable and onBufferReleased
+        //will block as well because they need to acquire the same lock.
+        mMutex.unlock();
+        res = gbp->attachBuffer(&slot, gb);
+        mMutex.lock();
+        if (res != OK) {
+            SP_LOGE("%s: Cannot acquireBuffer from GraphicBufferProducer %p: %s (%d)",
+                    __FUNCTION__, gbp.get(), strerror(-res), res);
+            return res;
+        }
+        auto& outputSlots = *mOutputSlots[gbp];
+        if (outputSlots[slot] != nullptr) {
+            // If the buffer is attached to a slot which already contains a buffer,
+            // the previous buffer will be removed from the output queue. Decrement
+            // the reference count accordingly.
+            decrementBufRefCountLocked(outputSlots[slot]->getId(), gbp);
+        }
+        SP_LOGV("%s: Attached buffer %p to slot %d on output %p.",__FUNCTION__, gb.get(),
+                slot, gbp.get());
+        outputSlots[slot] = gb;
+    }
+
+    mBuffers[bufferId] = std::move(tracker);
+
+    return res;
+}
+
+void Camera3StreamSplitter::onFrameAvailable(const BufferItem& /*item*/) {
+    ATRACE_CALL();
+    Mutex::Autolock lock(mMutex);
+
+    // Acquire and detach the buffer from the input
+    BufferItem bufferItem;
+    status_t res = mConsumer->acquireBuffer(&bufferItem, /* presentWhen */ 0);
+    if (res != NO_ERROR) {
+        SP_LOGE("%s: Acquiring buffer from input failed (%d)", __FUNCTION__, res);
+        mOnFrameAvailableRes.store(res);
+        return;
+    }
+    if (mBuffers.find(bufferItem.mGraphicBuffer->getId()) == mBuffers.end()) {
+        SP_LOGE("%s: Acquired buffer doesn't exist in attached buffer map",
+                __FUNCTION__);
+        mOnFrameAvailableRes.store(INVALID_OPERATION);
+        return;
+    }
+
+    SP_LOGV("acquired buffer %" PRId64 " from input at slot %d",
+            bufferItem.mGraphicBuffer->getId(), bufferItem.mSlot);
+
+    res = mConsumer->detachBuffer(bufferItem.mSlot);
+    if (res != NO_ERROR) {
+        SP_LOGE("%s: detaching buffer from input failed (%d)", __FUNCTION__, res);
+        mOnFrameAvailableRes.store(res);
+        return;
+    }
+
+    // Attach and queue the buffer to each of the outputs
+    BufferTracker& tracker = *(mBuffers[bufferItem.mGraphicBuffer->getId()]);
+
+    SP_LOGV("%s: BufferTracker for buffer %" PRId64 ", number of requests %zu",
+           __FUNCTION__, bufferItem.mGraphicBuffer->getId(), tracker.requestedSurfaces().size());
+    for (const auto id : tracker.requestedSurfaces()) {
+
+        LOG_ALWAYS_FATAL_IF(id >= mOutputs.size(),
+                "requested surface id exceeding max registered ids");
+
+        res = outputBufferLocked(mOutputs[id], bufferItem);
+        if (res != OK) {
+            SP_LOGE("%s: outputBufferLocked failed %d", __FUNCTION__, res);
+            mOnFrameAvailableRes.store(res);
+            // If we fail to send buffer to certain output, keep sending to
+            // other outputs.
+            continue;
+        }
+    }
+
+    mOnFrameAvailableRes.store(res);
+}
+
+void Camera3StreamSplitter::decrementBufRefCountLocked(uint64_t id,
+        const sp<IGraphicBufferProducer>& from) {
+    ATRACE_CALL();
+    size_t referenceCount = mBuffers[id]->decrementReferenceCountLocked();
+
+    removeSlotForOutputLocked(from, mBuffers[id]->getBuffer());
+    if (referenceCount > 0) {
+        return;
+    }
+
+    // We no longer need to track the buffer now that it is being returned to the
+    // input. Note that this should happen before we unlock the mutex and call
+    // releaseBuffer, to avoid the case where the same bufferId is acquired in
+    // attachBufferToOutputs resulting in a new BufferTracker with same bufferId
+    // overwrites the current one.
+    std::unique_ptr<BufferTracker> tracker_ptr = std::move(mBuffers[id]);
+    mBuffers.erase(id);
+
+    // Attach and release the buffer back to the input
+    int consumerSlot = BufferItem::INVALID_BUFFER_SLOT;
+    status_t res = mConsumer->attachBuffer(&consumerSlot, tracker_ptr->getBuffer());
+    if (res != NO_ERROR) {
+        SP_LOGE("%s: attaching buffer to input failed (%d)", __FUNCTION__, res);
+        return;
+    }
+
+    // Temporarily unlock mutex to avoid circular lock:
+    // 1. This function holds splitter lock, calls releaseBuffer which triggers
+    // onBufferReleased in Camera3OutputStream. onBufferReleased waits on the
+    // OutputStream lock
+    // 2. Camera3SharedOutputStream::getBufferLocked calls
+    // attachBufferToOutputs, which holds the stream lock, and waits for the
+    // splitter lock.
+    sp<IGraphicBufferConsumer> consumer(mConsumer);
+    mMutex.unlock();
+    if (consumer != nullptr) {
+        res = consumer->releaseBuffer(consumerSlot, /* frameNumber */ 0,
+                EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, tracker_ptr->getMergedFence());
+    } else {
+        SP_LOGE("%s: consumer has become null!", __FUNCTION__);
+    }
+    mMutex.lock();
+    // If the producer of this queue is disconnected, -22 error will occur
+    if (res != NO_ERROR) {
+        SP_LOGE("%s: releaseBuffer returns %d", __FUNCTION__, res);
+    }
+}
+
+void Camera3StreamSplitter::onBufferReleasedByOutput(
+        const sp<IGraphicBufferProducer>& from) {
+    ATRACE_CALL();
+    Mutex::Autolock lock(mMutex);
+
+    onBufferReleasedByOutputLocked(from);
+}
+
+void Camera3StreamSplitter::onBufferReleasedByOutputLocked(
+        const sp<IGraphicBufferProducer>& from) {
+    ATRACE_CALL();
+    sp<GraphicBuffer> buffer;
+    sp<Fence> fence;
+    status_t res = from->detachNextBuffer(&buffer, &fence);
+    if (res == NO_INIT) {
+        // If we just discovered that this output has been abandoned, note that,
+        // but we can't do anything else, since buffer is invalid
+        onAbandonedLocked();
+        return;
+    } else if (res == NO_MEMORY) {
+        SP_LOGV("%s: No free buffers", __FUNCTION__);
+        return;
+    } else if (res != OK) {
+        SP_LOGE("%s: detaching buffer from output failed (%d)", __FUNCTION__, res);
+        return;
+    }
+
+    BufferTracker& tracker = *(mBuffers[buffer->getId()]);
+    // Merge the release fence of the incoming buffer so that the fence we send
+    // back to the input includes all of the outputs' fences
+    if (fence != nullptr && fence->isValid()) {
+        tracker.mergeFence(fence);
+    }
+    SP_LOGV("detached buffer %" PRId64 " %p from output %p",
+            buffer->getId(), buffer.get(), from.get());
+
+    // Check to see if this is the last outstanding reference to this buffer
+    decrementBufRefCountLocked(buffer->getId(), from);
+}
+
+void Camera3StreamSplitter::onAbandonedLocked() {
+    // If this is called from binderDied callback, it means the app process
+    // holding the binder has died. CameraService will be notified of the binder
+    // death, and camera device will be closed, which in turn calls
+    // disconnect().
+    //
+    // If this is called from onBufferReleasedByOutput or onFrameAvailable, one
+    // consumer being abanoned shouldn't impact the other consumer. So we won't
+    // stop the buffer flow.
+    //
+    // In both cases, we don't need to do anything here.
+    SP_LOGV("One of my outputs has abandoned me");
+}
+
+int Camera3StreamSplitter::getSlotForOutputLocked(const sp<IGraphicBufferProducer>& gbp,
+        const sp<GraphicBuffer>& gb) {
+    auto& outputSlots = *mOutputSlots[gbp];
+
+    for (size_t i = 0; i < outputSlots.size(); i++) {
+        if (outputSlots[i] == gb) {
+            return (int)i;
+        }
+    }
+
+    SP_LOGE("%s: Cannot find slot for gb %p on output %p", __FUNCTION__, gb.get(),
+            gbp.get());
+    return BufferItem::INVALID_BUFFER_SLOT;
+}
+
+status_t Camera3StreamSplitter::removeSlotForOutputLocked(const sp<IGraphicBufferProducer>& gbp,
+        const sp<GraphicBuffer>& gb) {
+    auto& outputSlots = *mOutputSlots[gbp];
+
+    for (size_t i = 0; i < outputSlots.size(); i++) {
+        if (outputSlots[i] == gb) {
+           outputSlots[i].clear();
+           return NO_ERROR;
+        }
+    }
+
+    SP_LOGE("%s: Cannot find slot for gb %p on output %p", __FUNCTION__, gb.get(),
+            gbp.get());
+    return BAD_VALUE;
+}
+
+Camera3StreamSplitter::OutputListener::OutputListener(
+        wp<Camera3StreamSplitter> splitter,
+        wp<IGraphicBufferProducer> output)
+      : mSplitter(splitter), mOutput(output) {}
+
+void Camera3StreamSplitter::OutputListener::onBufferReleased() {
+    ATRACE_CALL();
+    sp<Camera3StreamSplitter> splitter = mSplitter.promote();
+    sp<IGraphicBufferProducer> output = mOutput.promote();
+    if (splitter != nullptr && output != nullptr) {
+        splitter->onBufferReleasedByOutput(output);
+    }
+}
+
+void Camera3StreamSplitter::OutputListener::binderDied(const wp<IBinder>& /* who */) {
+    sp<Camera3StreamSplitter> splitter = mSplitter.promote();
+    if (splitter != nullptr) {
+        Mutex::Autolock lock(splitter->mMutex);
+        splitter->onAbandonedLocked();
+    }
+}
+
+Camera3StreamSplitter::BufferTracker::BufferTracker(
+        const sp<GraphicBuffer>& buffer, const std::vector<size_t>& requestedSurfaces)
+      : mBuffer(buffer), mMergedFence(Fence::NO_FENCE), mRequestedSurfaces(requestedSurfaces),
+        mReferenceCount(requestedSurfaces.size()) {}
+
+void Camera3StreamSplitter::BufferTracker::mergeFence(const sp<Fence>& with) {
+    mMergedFence = Fence::merge(String8("Camera3StreamSplitter"), mMergedFence, with);
+}
+
+size_t Camera3StreamSplitter::BufferTracker::decrementReferenceCountLocked() {
+    if (mReferenceCount > 0)
+        --mReferenceCount;
+    return mReferenceCount;
+}
+
+} // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3StreamSplitter.h b/services/camera/libcameraservice/device3/Camera3StreamSplitter.h
new file mode 100644
index 0000000..cc623e0
--- /dev/null
+++ b/services/camera/libcameraservice/device3/Camera3StreamSplitter.h
@@ -0,0 +1,253 @@
+/*
+ * Copyright 2014,2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SERVERS_STREAMSPLITTER_H
+#define ANDROID_SERVERS_STREAMSPLITTER_H
+
+#include <gui/IConsumerListener.h>
+#include <gui/IProducerListener.h>
+#include <gui/BufferItemConsumer.h>
+
+#include <utils/Condition.h>
+#include <utils/Mutex.h>
+#include <utils/StrongPointer.h>
+#include <utils/Timers.h>
+
+#define SP_LOGV(x, ...) ALOGV("[%s] " x, mConsumerName.string(), ##__VA_ARGS__)
+#define SP_LOGI(x, ...) ALOGI("[%s] " x, mConsumerName.string(), ##__VA_ARGS__)
+#define SP_LOGW(x, ...) ALOGW("[%s] " x, mConsumerName.string(), ##__VA_ARGS__)
+#define SP_LOGE(x, ...) ALOGE("[%s] " x, mConsumerName.string(), ##__VA_ARGS__)
+
+namespace android {
+
+class GraphicBuffer;
+class IGraphicBufferConsumer;
+class IGraphicBufferProducer;
+
+// Camera3StreamSplitter is an autonomous class that manages one input BufferQueue
+// and multiple output BufferQueues. By using the buffer attach and detach logic
+// in BufferQueue, it is able to present the illusion of a single split
+// BufferQueue, where each buffer queued to the input is available to be
+// acquired by each of the outputs, and is able to be dequeued by the input
+// again only once all of the outputs have released it.
+class Camera3StreamSplitter : public BnConsumerListener {
+public:
+
+    // Constructor
+    Camera3StreamSplitter() = default;
+
+    // Connect to the stream splitter by creating buffer queue and connecting it
+    // with output surfaces.
+    status_t connect(const std::vector<sp<Surface> >& surfaces,
+            uint32_t consumerUsage, size_t halMaxBuffers,
+            sp<Surface>* consumer);
+
+    // addOutput adds an output BufferQueue to the splitter. The splitter
+    // connects to outputQueue as a CPU producer, and any buffers queued
+    // to the input will be queued to each output. It is assumed that all of the
+    // outputs are added before any buffers are queued on the input. If any
+    // output is abandoned by its consumer, the splitter will abandon its input
+    // queue (see onAbandoned).
+    //
+    // A return value other than NO_ERROR means that an error has occurred and
+    // outputQueue has not been added to the splitter. BAD_VALUE is returned if
+    // outputQueue is NULL. See IGraphicBufferProducer::connect for explanations
+    // of other error codes.
+    status_t addOutput(const sp<Surface>& outputQueue);
+
+    // Notification that the graphic buffer has been released to the input
+    // BufferQueue. The buffer should be reused by the camera device instead of
+    // queuing to the outputs.
+    status_t notifyBufferReleased(const sp<GraphicBuffer>& buffer);
+
+    // Attach a buffer to the specified outputs. This call reserves a buffer
+    // slot in the output queue.
+    status_t attachBufferToOutputs(ANativeWindowBuffer* anb,
+            const std::vector<size_t>& surface_ids);
+
+    // Get return value of onFrameAvailable to work around problem that
+    // onFrameAvailable is void. This function should be called by the producer
+    // right after calling queueBuffer().
+    status_t getOnFrameAvailableResult();
+
+    // Disconnect the buffer queue from output surfaces.
+    void disconnect();
+
+private:
+    // From IConsumerListener
+    //
+    // During this callback, we store some tracking information, detach the
+    // buffer from the input, and attach it to each of the outputs. This call
+    // can block if there are too many outstanding buffers. If it blocks, it
+    // will resume when onBufferReleasedByOutput releases a buffer back to the
+    // input.
+    void onFrameAvailable(const BufferItem& item) override;
+
+    // From IConsumerListener
+    // We don't care about released buffers because we detach each buffer as
+    // soon as we acquire it. See the comment for onBufferReleased below for
+    // some clarifying notes about the name.
+    void onBuffersReleased() override {}
+
+    // From IConsumerListener
+    // We don't care about sideband streams, since we won't be splitting them
+    void onSidebandStreamChanged() override {}
+
+    // This is the implementation of the onBufferReleased callback from
+    // IProducerListener. It gets called from an OutputListener (see below), and
+    // 'from' is which producer interface from which the callback was received.
+    //
+    // During this callback, we detach the buffer from the output queue that
+    // generated the callback, update our state tracking to see if this is the
+    // last output releasing the buffer, and if so, release it to the input.
+    // If we release the buffer to the input, we allow a blocked
+    // onFrameAvailable call to proceed.
+    void onBufferReleasedByOutput(const sp<IGraphicBufferProducer>& from);
+
+    // This is the implementation of onBufferReleasedByOutput without the mutex locked.
+    // It could either be called from onBufferReleasedByOutput or from
+    // onFrameAvailable when a buffer in the async buffer queue is overwritten.
+    void onBufferReleasedByOutputLocked(const sp<IGraphicBufferProducer>& from);
+
+    // When this is called, the splitter disconnects from (i.e., abandons) its
+    // input queue and signals any waiting onFrameAvailable calls to wake up.
+    // It still processes callbacks from other outputs, but only detaches their
+    // buffers so they can continue operating until they run out of buffers to
+    // acquire. This must be called with mMutex locked.
+    void onAbandonedLocked();
+
+    // Decrement the buffer's reference count. Once the reference count becomes
+    // 0, return the buffer back to the input BufferQueue.
+    void decrementBufRefCountLocked(uint64_t id, const sp<IGraphicBufferProducer>& from);
+
+    // This is a thin wrapper class that lets us determine which BufferQueue
+    // the IProducerListener::onBufferReleased callback is associated with. We
+    // create one of these per output BufferQueue, and then pass the producer
+    // into onBufferReleasedByOutput above.
+    class OutputListener : public BnProducerListener,
+                           public IBinder::DeathRecipient {
+    public:
+        OutputListener(wp<Camera3StreamSplitter> splitter,
+                wp<IGraphicBufferProducer> output);
+        virtual ~OutputListener() = default;
+
+        // From IProducerListener
+        void onBufferReleased() override;
+
+        // From IBinder::DeathRecipient
+        void binderDied(const wp<IBinder>& who) override;
+
+    private:
+        wp<Camera3StreamSplitter> mSplitter;
+        wp<IGraphicBufferProducer> mOutput;
+    };
+
+    class BufferTracker {
+    public:
+        BufferTracker(const sp<GraphicBuffer>& buffer,
+                const std::vector<size_t>& requestedSurfaces);
+        ~BufferTracker() = default;
+
+        const sp<GraphicBuffer>& getBuffer() const { return mBuffer; }
+        const sp<Fence>& getMergedFence() const { return mMergedFence; }
+
+        void mergeFence(const sp<Fence>& with);
+
+        // Returns the new value
+        // Only called while mMutex is held
+        size_t decrementReferenceCountLocked();
+
+        const std::vector<size_t> requestedSurfaces() const { return mRequestedSurfaces; }
+
+    private:
+
+        // Disallow copying
+        BufferTracker(const BufferTracker& other);
+        BufferTracker& operator=(const BufferTracker& other);
+
+        sp<GraphicBuffer> mBuffer; // One instance that holds this native handle
+        sp<Fence> mMergedFence;
+
+        // Request surfaces for a particular buffer. And when the buffer becomes
+        // available from the input queue, the registered surfaces are used to decide
+        // which output is the buffer sent to.
+        std::vector<size_t> mRequestedSurfaces;
+        size_t mReferenceCount;
+    };
+
+    // Must be accessed through RefBase
+    virtual ~Camera3StreamSplitter();
+
+    status_t addOutputLocked(const sp<Surface>& outputQueue);
+
+    // Send a buffer to particular output, and increment the reference count
+    // of the buffer. If this output is abandoned, the buffer's reference count
+    // won't be incremented.
+    status_t outputBufferLocked(const sp<IGraphicBufferProducer>& output,
+            const BufferItem& bufferItem);
+
+    // Get unique name for the buffer queue consumer
+    String8 getUniqueConsumerName();
+
+    // Helper function to get the BufferQueue slot where a particular buffer is attached to.
+    int getSlotForOutputLocked(const sp<IGraphicBufferProducer>& gbp,
+            const sp<GraphicBuffer>& gb);
+    // Helper function to remove the buffer from the BufferQueue slot
+    status_t removeSlotForOutputLocked(const sp<IGraphicBufferProducer>& gbp,
+            const sp<GraphicBuffer>& gb);
+
+
+    // Sum of max consumer buffers for all outputs
+    size_t mMaxConsumerBuffers = 0;
+    size_t mMaxHalBuffers = 0;
+
+    static const nsecs_t kDequeueBufferTimeout   = s2ns(1); // 1 sec
+
+    Mutex mMutex;
+
+    sp<IGraphicBufferProducer> mProducer;
+    sp<IGraphicBufferConsumer> mConsumer;
+    sp<BufferItemConsumer> mBufferItemConsumer;
+    sp<Surface> mSurface;
+
+    std::vector<sp<IGraphicBufferProducer> > mOutputs;
+    // Map of GraphicBuffer IDs (GraphicBuffer::getId()) to buffer tracking
+    // objects (which are mostly for counting how many outputs have released the
+    // buffer, but also contain merged release fences).
+    std::unordered_map<uint64_t, std::unique_ptr<BufferTracker> > mBuffers;
+
+    struct GBPHash {
+        std::size_t operator()(const sp<IGraphicBufferProducer>& producer) const {
+            return std::hash<IGraphicBufferProducer *>{}(producer.get());
+        }
+    };
+
+    std::unordered_map<sp<IGraphicBufferProducer>, sp<OutputListener>,
+            GBPHash> mNotifiers;
+
+    typedef std::vector<sp<GraphicBuffer>> OutputSlots;
+    std::unordered_map<sp<IGraphicBufferProducer>, std::unique_ptr<OutputSlots>,
+            GBPHash> mOutputSlots;
+
+    // Latest onFrameAvailable return value
+    std::atomic<status_t> mOnFrameAvailableRes{0};
+
+    String8 mConsumerName;
+};
+
+} // namespace android
+
+#endif
diff --git a/services/camera/libcameraservice/device3/Camera3ZslStream.cpp b/services/camera/libcameraservice/device3/Camera3ZslStream.cpp
deleted file mode 100644
index 7414c4c..0000000
--- a/services/camera/libcameraservice/device3/Camera3ZslStream.cpp
+++ /dev/null
@@ -1,348 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "Camera3-ZslStream"
-#define ATRACE_TAG ATRACE_TAG_CAMERA
-//#define LOG_NDEBUG 0
-
-#include <inttypes.h>
-
-#include <utils/Log.h>
-#include <utils/Trace.h>
-#include "Camera3ZslStream.h"
-
-typedef android::RingBufferConsumer::PinnedBufferItem PinnedBufferItem;
-
-namespace android {
-
-namespace camera3 {
-
-namespace {
-struct TimestampFinder : public RingBufferConsumer::RingBufferComparator {
-    typedef RingBufferConsumer::BufferInfo BufferInfo;
-
-    enum {
-        SELECT_I1 = -1,
-        SELECT_I2 = 1,
-        SELECT_NEITHER = 0,
-    };
-
-    TimestampFinder(nsecs_t timestamp) : mTimestamp(timestamp) {}
-    ~TimestampFinder() {}
-
-    template <typename T>
-    static void swap(T& a, T& b) {
-        T tmp = a;
-        a = b;
-        b = tmp;
-    }
-
-    /**
-     * Try to find the best candidate for a ZSL buffer.
-     * Match priority from best to worst:
-     *  1) Timestamps match.
-     *  2) Timestamp is closest to the needle (and lower).
-     *  3) Timestamp is closest to the needle (and higher).
-     *
-     */
-    virtual int compare(const BufferInfo *i1,
-                        const BufferInfo *i2) const {
-        // Try to select non-null object first.
-        if (i1 == NULL) {
-            return SELECT_I2;
-        } else if (i2 == NULL) {
-            return SELECT_I1;
-        }
-
-        // Best result: timestamp is identical
-        if (i1->mTimestamp == mTimestamp) {
-            return SELECT_I1;
-        } else if (i2->mTimestamp == mTimestamp) {
-            return SELECT_I2;
-        }
-
-        const BufferInfo* infoPtrs[2] = {
-            i1,
-            i2
-        };
-        int infoSelectors[2] = {
-            SELECT_I1,
-            SELECT_I2
-        };
-
-        // Order i1,i2 so that always i1.timestamp < i2.timestamp
-        if (i1->mTimestamp > i2->mTimestamp) {
-            swap(infoPtrs[0], infoPtrs[1]);
-            swap(infoSelectors[0], infoSelectors[1]);
-        }
-
-        // Second best: closest (lower) timestamp
-        if (infoPtrs[1]->mTimestamp < mTimestamp) {
-            return infoSelectors[1];
-        } else if (infoPtrs[0]->mTimestamp < mTimestamp) {
-            return infoSelectors[0];
-        }
-
-        // Worst: closest (higher) timestamp
-        return infoSelectors[0];
-
-        /**
-         * The above cases should cover all the possibilities,
-         * and we get an 'empty' result only if the ring buffer
-         * was empty itself
-         */
-    }
-
-    const nsecs_t mTimestamp;
-}; // struct TimestampFinder
-} // namespace anonymous
-
-Camera3ZslStream::Camera3ZslStream(int id, uint32_t width, uint32_t height,
-        int bufferCount) :
-        Camera3OutputStream(id, CAMERA3_STREAM_BIDIRECTIONAL,
-                            width, height,
-                            HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
-                            HAL_DATASPACE_UNKNOWN, CAMERA3_STREAM_ROTATION_0) {
-
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
-    mProducer = new RingBufferConsumer(consumer, GRALLOC_USAGE_HW_CAMERA_ZSL, bufferCount);
-    mProducer->setName(String8("Camera2-ZslRingBufferConsumer"));
-    mConsumer = new Surface(producer);
-}
-
-Camera3ZslStream::~Camera3ZslStream() {
-}
-
-status_t Camera3ZslStream::getInputBufferLocked(camera3_stream_buffer *buffer) {
-    ATRACE_CALL();
-
-    status_t res;
-
-    // TODO: potentially register from inputBufferLocked
-    // this should be ok, registerBuffersLocked only calls getBuffer for now
-    // register in output mode instead of input mode for ZSL streams.
-    if (mState == STATE_IN_CONFIG || mState == STATE_IN_RECONFIG) {
-        ALOGE("%s: Stream %d: Buffer registration for input streams"
-              " not implemented (state %d)",
-              __FUNCTION__, mId, mState);
-        return INVALID_OPERATION;
-    }
-
-    if ((res = getBufferPreconditionCheckLocked()) != OK) {
-        return res;
-    }
-
-    ANativeWindowBuffer* anb;
-    int fenceFd;
-
-    assert(mProducer != 0);
-
-    sp<PinnedBufferItem> bufferItem;
-    {
-        List<sp<RingBufferConsumer::PinnedBufferItem> >::iterator it, end;
-        it = mInputBufferQueue.begin();
-        end = mInputBufferQueue.end();
-
-        // Need to call enqueueInputBufferByTimestamp as a prerequisite
-        if (it == end) {
-            ALOGE("%s: Stream %d: No input buffer was queued",
-                    __FUNCTION__, mId);
-            return INVALID_OPERATION;
-        }
-        bufferItem = *it;
-        mInputBufferQueue.erase(it);
-    }
-
-    anb = bufferItem->getBufferItem().mGraphicBuffer->getNativeBuffer();
-    assert(anb != NULL);
-    fenceFd = bufferItem->getBufferItem().mFence->dup();
-
-    /**
-     * FenceFD now owned by HAL except in case of error,
-     * in which case we reassign it to acquire_fence
-     */
-    handoutBufferLocked(*buffer, &(anb->handle), /*acquireFence*/fenceFd,
-                         /*releaseFence*/-1, CAMERA3_BUFFER_STATUS_OK, /*output*/false);
-
-    mBuffersInFlight.push_back(bufferItem);
-
-    return OK;
-}
-
-status_t Camera3ZslStream::returnBufferCheckedLocked(
-            const camera3_stream_buffer &buffer,
-            nsecs_t timestamp,
-            bool output,
-            /*out*/
-            sp<Fence> *releaseFenceOut) {
-
-    if (output) {
-        // Output stream path
-        return Camera3OutputStream::returnBufferCheckedLocked(buffer,
-                                                              timestamp,
-                                                              output,
-                                                              releaseFenceOut);
-    }
-
-    /**
-     * Input stream path
-     */
-    bool bufferFound = false;
-    sp<PinnedBufferItem> bufferItem;
-    {
-        // Find the buffer we are returning
-        Vector<sp<PinnedBufferItem> >::iterator it, end;
-        for (it = mBuffersInFlight.begin(), end = mBuffersInFlight.end();
-             it != end;
-             ++it) {
-
-            const sp<PinnedBufferItem>& tmp = *it;
-            ANativeWindowBuffer *anb =
-                    tmp->getBufferItem().mGraphicBuffer->getNativeBuffer();
-            if (anb != NULL && &(anb->handle) == buffer.buffer) {
-                bufferFound = true;
-                bufferItem = tmp;
-                mBuffersInFlight.erase(it);
-                break;
-            }
-        }
-    }
-    if (!bufferFound) {
-        ALOGE("%s: Stream %d: Can't return buffer that wasn't sent to HAL",
-              __FUNCTION__, mId);
-        return INVALID_OPERATION;
-    }
-
-    int releaseFenceFd = buffer.release_fence;
-
-    if (buffer.status == CAMERA3_BUFFER_STATUS_ERROR) {
-        if (buffer.release_fence != -1) {
-            ALOGE("%s: Stream %d: HAL should not set release_fence(%d) when "
-                  "there is an error", __FUNCTION__, mId, buffer.release_fence);
-            close(buffer.release_fence);
-        }
-
-        /**
-         * Reassign release fence as the acquire fence incase of error
-         */
-        releaseFenceFd = buffer.acquire_fence;
-    }
-
-    /**
-     * Unconditionally return buffer to the buffer queue.
-     * - Fwk takes over the release_fence ownership
-     */
-    sp<Fence> releaseFence = new Fence(releaseFenceFd);
-    bufferItem->getBufferItem().mFence = releaseFence;
-    bufferItem.clear(); // dropping last reference unpins buffer
-
-    *releaseFenceOut = releaseFence;
-
-    return OK;
-}
-
-status_t Camera3ZslStream::returnInputBufferLocked(
-        const camera3_stream_buffer &buffer) {
-    ATRACE_CALL();
-
-    status_t res = returnAnyBufferLocked(buffer, /*timestamp*/0,
-                                         /*output*/false);
-
-    return res;
-}
-
-void Camera3ZslStream::dump(int fd, const Vector<String16> &args) const {
-    (void) args;
-
-    String8 lines;
-    lines.appendFormat("    Stream[%d]: ZSL\n", mId);
-    write(fd, lines.string(), lines.size());
-
-    Camera3IOStreamBase::dump(fd, args);
-
-    lines = String8();
-    lines.appendFormat("      Input buffers pending: %zu, in flight %zu\n",
-            mInputBufferQueue.size(), mBuffersInFlight.size());
-    write(fd, lines.string(), lines.size());
-}
-
-status_t Camera3ZslStream::enqueueInputBufferByTimestamp(
-        nsecs_t timestamp,
-        nsecs_t* actualTimestamp) {
-
-    Mutex::Autolock l(mLock);
-
-    TimestampFinder timestampFinder = TimestampFinder(timestamp);
-
-    sp<RingBufferConsumer::PinnedBufferItem> pinnedBuffer =
-            mProducer->pinSelectedBuffer(timestampFinder,
-                                        /*waitForFence*/false);
-
-    if (pinnedBuffer == 0) {
-        ALOGE("%s: No ZSL buffers were available yet", __FUNCTION__);
-        return NO_BUFFER_AVAILABLE;
-    }
-
-    nsecs_t actual = pinnedBuffer->getBufferItem().mTimestamp;
-
-    if (actual != timestamp) {
-        // TODO: this is problematic, we'll end up with using wrong result for this pinned buffer.
-        ALOGW("%s: ZSL buffer candidate search didn't find an exact match --"
-              " requested timestamp = %" PRId64 ", actual timestamp = %" PRId64,
-              __FUNCTION__, timestamp, actual);
-    }
-
-    mInputBufferQueue.push_back(pinnedBuffer);
-
-    if (actualTimestamp != NULL) {
-        *actualTimestamp = actual;
-    }
-
-    return OK;
-}
-
-status_t Camera3ZslStream::clearInputRingBuffer(nsecs_t* latestTimestamp) {
-    Mutex::Autolock l(mLock);
-
-    return clearInputRingBufferLocked(latestTimestamp);
-}
-
-status_t Camera3ZslStream::clearInputRingBufferLocked(nsecs_t* latestTimestamp) {
-
-    if (latestTimestamp) {
-        *latestTimestamp = mProducer->getLatestTimestamp();
-    }
-    mInputBufferQueue.clear();
-
-    return mProducer->clear();
-}
-
-status_t Camera3ZslStream::disconnectLocked() {
-    clearInputRingBufferLocked(NULL);
-
-    return Camera3OutputStream::disconnectLocked();
-}
-
-status_t Camera3ZslStream::setTransform(int /*transform*/) {
-    ALOGV("%s: Not implemented", __FUNCTION__);
-    return INVALID_OPERATION;
-}
-
-}; // namespace camera3
-
-}; // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3ZslStream.h b/services/camera/libcameraservice/device3/Camera3ZslStream.h
deleted file mode 100644
index 12369cf..0000000
--- a/services/camera/libcameraservice/device3/Camera3ZslStream.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_SERVERS_CAMERA3_ZSL_STREAM_H
-#define ANDROID_SERVERS_CAMERA3_ZSL_STREAM_H
-
-#include <utils/RefBase.h>
-#include <gui/Surface.h>
-#include <gui/RingBufferConsumer.h>
-
-#include "Camera3OutputStream.h"
-
-namespace android {
-
-namespace camera3 {
-
-/**
- * A class for managing a single opaque ZSL stream to/from the camera device.
- * This acts as a bidirectional stream at the HAL layer, caching and discarding
- * most output buffers, and when directed, pushes a buffer back to the HAL for
- * processing.
- */
-class Camera3ZslStream :
-        public Camera3OutputStream {
-  public:
-    /**
-     * Set up a ZSL stream of a given resolution. bufferCount is the number of buffers
-     * cached within the stream that can be retrieved for input.
-     */
-    Camera3ZslStream(int id, uint32_t width, uint32_t height, int bufferCount);
-    ~Camera3ZslStream();
-
-    virtual void     dump(int fd, const Vector<String16> &args) const;
-
-    enum { NO_BUFFER_AVAILABLE = BufferQueue::NO_BUFFER_AVAILABLE };
-
-    /**
-     * Locate a buffer matching this timestamp in the RingBufferConsumer,
-     * and mark it to be queued at the next getInputBufferLocked invocation.
-     *
-     * Errors: Returns NO_BUFFER_AVAILABLE if we could not find a match.
-     *
-     */
-    status_t enqueueInputBufferByTimestamp(nsecs_t timestamp,
-                                           nsecs_t* actualTimestamp);
-
-    /**
-     * Clears the buffers that can be used by enqueueInputBufferByTimestamp
-     * latestTimestamp will be filled with the largest timestamp of buffers
-     * being cleared, 0 if there is no buffer being clear.
-     */
-    status_t clearInputRingBuffer(nsecs_t* latestTimestamp);
-
-  protected:
-
-    /**
-     * Camera3OutputStreamInterface implementation
-     */
-    status_t setTransform(int transform);
-
-  private:
-
-    // Input buffers pending to be queued into HAL
-    List<sp<RingBufferConsumer::PinnedBufferItem> > mInputBufferQueue;
-    sp<RingBufferConsumer>                          mProducer;
-
-    // Input buffers in flight to HAL
-    Vector<sp<RingBufferConsumer::PinnedBufferItem> > mBuffersInFlight;
-
-    /**
-     * Camera3Stream interface
-     */
-
-    // getInputBuffer/returnInputBuffer operate the input stream side of the
-    // ZslStream.
-    virtual status_t getInputBufferLocked(camera3_stream_buffer *buffer);
-    virtual status_t returnInputBufferLocked(
-            const camera3_stream_buffer &buffer);
-
-    // Actual body to return either input or output buffers
-    virtual status_t returnBufferCheckedLocked(
-            const camera3_stream_buffer &buffer,
-            nsecs_t timestamp,
-            bool output,
-            /*out*/
-            sp<Fence> *releaseFenceOut);
-
-    // Disconnet the Camera3ZslStream specific bufferQueues.
-    virtual status_t disconnectLocked();
-
-    status_t clearInputRingBufferLocked(nsecs_t* latestTimestamp);
-
-}; // class Camera3ZslStream
-
-}; // namespace camera3
-
-}; // namespace android
-
-#endif
diff --git a/services/camera/libcameraservice/device3/StatusTracker.h b/services/camera/libcameraservice/device3/StatusTracker.h
index 49cecb3..3a1d85c 100644
--- a/services/camera/libcameraservice/device3/StatusTracker.h
+++ b/services/camera/libcameraservice/device3/StatusTracker.h
@@ -45,7 +45,7 @@
  */
 class StatusTracker: public Thread {
   public:
-    StatusTracker(wp<Camera3Device> parent);
+    explicit StatusTracker(wp<Camera3Device> parent);
     ~StatusTracker();
 
     // An always-invalid component ID
diff --git a/services/camera/libcameraservice/gui/RingBufferConsumer.h b/services/camera/libcameraservice/gui/RingBufferConsumer.h
index 28dc5d5..2bafe4a 100644
--- a/services/camera/libcameraservice/gui/RingBufferConsumer.h
+++ b/services/camera/libcameraservice/gui/RingBufferConsumer.h
@@ -19,18 +19,16 @@
 
 #include <gui/BufferItem.h>
 #include <gui/ConsumerBase.h>
+#include <gui/BufferQueue.h>
 
-#include <ui/GraphicBuffer.h>
-
-#include <utils/String8.h>
-#include <utils/Vector.h>
-#include <utils/threads.h>
 #include <utils/List.h>
 
 #define ANDROID_GRAPHICS_RINGBUFFERCONSUMER_JNI_ID "mRingBufferConsumer"
 
 namespace android {
 
+class String8;
+
 /**
  * The RingBufferConsumer maintains a ring buffer of BufferItem objects,
  * (which are 'acquired' as long as they are part of the ring buffer, and
diff --git a/services/camera/libcameraservice/tests/Android.mk b/services/camera/libcameraservice/tests/Android.mk
new file mode 100644
index 0000000..37a05c2
--- /dev/null
+++ b/services/camera/libcameraservice/tests/Android.mk
@@ -0,0 +1,42 @@
+# Copyright 2013 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= $(call all-cpp-files-under, .)
+
+LOCAL_SHARED_LIBRARIES := \
+    libcutils \
+    libcameraservice \
+    libhidlbase \
+    liblog \
+    libhidltransport \
+    libcamera_client \
+    libcamera_metadata \
+    libutils \
+    android.hardware.camera.common@1.0 \
+    android.hardware.camera.provider@2.4 \
+    android.hardware.camera.device@1.0 \
+    android.hardware.camera.device@3.2
+
+LOCAL_C_INCLUDES += \
+    system/media/private/camera/include \
+
+LOCAL_CFLAGS += -Wall -Wextra -Werror
+
+LOCAL_MODULE:= cameraservice_test
+LOCAL_MODULE_TAGS := tests
+
+include $(BUILD_NATIVE_TEST)
diff --git a/services/camera/libcameraservice/tests/CameraProviderManagerTest.cpp b/services/camera/libcameraservice/tests/CameraProviderManagerTest.cpp
new file mode 100644
index 0000000..c1d6e85
--- /dev/null
+++ b/services/camera/libcameraservice/tests/CameraProviderManagerTest.cpp
@@ -0,0 +1,367 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "CameraProviderManagerTest"
+
+#include "../common/CameraProviderManager.h"
+#include <android/hidl/manager/1.0/IServiceManager.h>
+#include <android/hidl/manager/1.0/IServiceNotification.h>
+#include <android/hardware/camera/device/3.2/ICameraDeviceCallback.h>
+#include <android/hardware/camera/device/3.2/ICameraDeviceSession.h>
+#include <camera_metadata_hidden.h>
+#include <gtest/gtest.h>
+
+using namespace android;
+using namespace android::hardware::camera;
+using android::hardware::camera::common::V1_0::Status;
+using android::hardware::camera::common::V1_0::VendorTag;
+using android::hardware::camera::common::V1_0::VendorTagSection;
+using android::hardware::camera::common::V1_0::CameraMetadataType;
+using android::hardware::camera::device::V3_2::ICameraDeviceCallback;
+using android::hardware::camera::device::V3_2::ICameraDeviceSession;
+
+/**
+ * Basic test implementation of a camera ver. 3.2 device interface
+ */
+struct TestDeviceInterface : public device::V3_2::ICameraDevice {
+    std::vector<hardware::hidl_string> mDeviceNames;
+    TestDeviceInterface(std::vector<hardware::hidl_string> deviceNames) :
+        mDeviceNames(deviceNames) {}
+    using getResourceCost_cb = std::function<void(
+            hardware::camera::common::V1_0::Status status,
+            const hardware::camera::common::V1_0::CameraResourceCost& resourceCost)>;
+    virtual ::android::hardware::Return<void> getResourceCost(
+            getResourceCost_cb _hidl_cb) override {
+        hardware::camera::common::V1_0::CameraResourceCost resourceCost = {100,
+                mDeviceNames};
+        _hidl_cb(Status::OK, resourceCost);
+        return hardware::Void();
+    }
+
+    using getCameraCharacteristics_cb = std::function<void(
+            hardware::camera::common::V1_0::Status status,
+            const hardware::hidl_vec<uint8_t>& cameraCharacteristics)>;
+    hardware::Return<void> getCameraCharacteristics(
+            getCameraCharacteristics_cb _hidl_cb) override {
+        hardware::hidl_vec<uint8_t> cameraCharacteristics;
+        _hidl_cb(Status::OK, cameraCharacteristics);
+        return hardware::Void();
+    }
+
+    hardware::Return<hardware::camera::common::V1_0::Status> setTorchMode(
+            ::android::hardware::camera::common::V1_0::TorchMode) override {
+        return Status::OK;
+    }
+
+    using open_cb = std::function<void(
+            ::android::hardware::camera::common::V1_0::Status status,
+             const ::android::sp<ICameraDeviceSession>& session)>;
+    hardware::Return<void> open(
+            const ::android::sp<ICameraDeviceCallback>&,
+            open_cb _hidl_cb) override {
+        sp<ICameraDeviceSession> deviceSession = nullptr;
+        _hidl_cb(Status::OK, deviceSession);
+        return hardware::Void();
+    }
+
+    hardware::Return<void> dumpState(
+            const ::android::hardware::hidl_handle&) override {
+        return hardware::Void();
+    }
+};
+
+/**
+ * Basic test implementation of a camera provider
+ */
+struct TestICameraProvider : virtual public provider::V2_4::ICameraProvider {
+    sp<provider::V2_4::ICameraProviderCallback> mCallbacks;
+    std::vector<hardware::hidl_string> mDeviceNames;
+    sp<device::V3_2::ICameraDevice> mDeviceInterface;
+    hardware::hidl_vec<common::V1_0::VendorTagSection> mVendorTagSections;
+
+    TestICameraProvider(const std::vector<hardware::hidl_string> &devices,
+            const hardware::hidl_vec<common::V1_0::VendorTagSection> &vendorSection) :
+        mDeviceNames(devices),
+        mDeviceInterface(new TestDeviceInterface(devices)),
+        mVendorTagSections (vendorSection) {}
+
+    virtual hardware::Return<Status> setCallback(
+            const sp<provider::V2_4::ICameraProviderCallback>& callbacks) override {
+        mCallbacks = callbacks;
+        return hardware::Return<Status>(Status::OK);
+    }
+
+    using getVendorTags_cb = std::function<void(Status status,
+            const hardware::hidl_vec<common::V1_0::VendorTagSection>& sections)>;
+    hardware::Return<void> getVendorTags(getVendorTags_cb _hidl_cb) override {
+        _hidl_cb(Status::OK, mVendorTagSections);
+        return hardware::Void();
+    }
+
+    using isSetTorchModeSupported_cb = std::function<void(
+            ::android::hardware::camera::common::V1_0::Status status,
+             bool support)>;
+    virtual ::hardware::Return<void> isSetTorchModeSupported(
+            isSetTorchModeSupported_cb _hidl_cb) override {
+        _hidl_cb(Status::OK, false);
+        return hardware::Void();
+    }
+
+    using getCameraIdList_cb = std::function<void(Status status,
+            const hardware::hidl_vec<hardware::hidl_string>& cameraDeviceNames)>;
+    virtual hardware::Return<void> getCameraIdList(getCameraIdList_cb _hidl_cb) override {
+        _hidl_cb(Status::OK, mDeviceNames);
+        return hardware::Void();
+    }
+
+    using getCameraDeviceInterface_V1_x_cb = std::function<void(Status status,
+            const sp<device::V1_0::ICameraDevice>& device)>;
+    virtual hardware::Return<void> getCameraDeviceInterface_V1_x(
+            const hardware::hidl_string& cameraDeviceName,
+            getCameraDeviceInterface_V1_x_cb _hidl_cb) override {
+        (void) cameraDeviceName;
+        _hidl_cb(Status::OK, nullptr); //TODO: impl. of ver. 1.0 device interface
+                                       //      otherwise enumeration will fail.
+        return hardware::Void();
+    }
+
+    using getCameraDeviceInterface_V3_x_cb = std::function<void(Status status,
+            const sp<device::V3_2::ICameraDevice>& device)>;
+    virtual hardware::Return<void> getCameraDeviceInterface_V3_x(
+            const hardware::hidl_string&,
+            getCameraDeviceInterface_V3_x_cb _hidl_cb) override {
+        _hidl_cb(Status::OK, mDeviceInterface);
+        return hardware::Void();
+    }
+
+};
+
+/**
+ * Simple test version of the interaction proxy, to use to inject onRegistered calls to the
+ * CameraProviderManager
+ */
+struct TestInteractionProxy : public CameraProviderManager::ServiceInteractionProxy {
+    sp<hidl::manager::V1_0::IServiceNotification> mManagerNotificationInterface;
+    sp<TestICameraProvider> mTestCameraProvider;
+
+    TestInteractionProxy() {}
+    void setProvider(sp<TestICameraProvider> provider) {
+        mTestCameraProvider = provider;
+    }
+
+    std::string mLastRequestedServiceName;
+
+    virtual ~TestInteractionProxy() {}
+
+    virtual bool registerForNotifications(
+            const std::string &serviceName,
+            const sp<hidl::manager::V1_0::IServiceNotification> &notification) override {
+        (void) serviceName;
+        mManagerNotificationInterface = notification;
+        return true;
+    }
+
+    virtual sp<hardware::camera::provider::V2_4::ICameraProvider> getService(
+            const std::string &serviceName) override {
+        mLastRequestedServiceName = serviceName;
+        return mTestCameraProvider;
+    }
+
+};
+
+struct TestStatusListener : public CameraProviderManager::StatusListener {
+    ~TestStatusListener() {}
+
+    void onDeviceStatusChanged(const String8 &,
+            hardware::camera::common::V1_0::CameraDeviceStatus) override {}
+    void onTorchStatusChanged(const String8 &,
+            hardware::camera::common::V1_0::TorchModeStatus) override {}
+};
+
+TEST(CameraProviderManagerTest, InitializeTest) {
+    std::vector<hardware::hidl_string> deviceNames;
+    deviceNames.push_back("device@3.2/test/0");
+    deviceNames.push_back("device@1.0/test/0");
+    deviceNames.push_back("device@3.2/test/1");
+    hardware::hidl_vec<common::V1_0::VendorTagSection> vendorSection;
+    status_t res;
+    sp<CameraProviderManager> providerManager = new CameraProviderManager();
+    sp<TestStatusListener> statusListener = new TestStatusListener();
+    TestInteractionProxy serviceProxy;
+    sp<TestICameraProvider> provider =  new TestICameraProvider(deviceNames,
+            vendorSection);
+    serviceProxy.setProvider(provider);
+
+    res = providerManager->initialize(statusListener, &serviceProxy);
+    ASSERT_EQ(res, OK) << "Unable to initialize provider manager";
+
+    hardware::hidl_string legacyInstanceName = "legacy/0";
+    ASSERT_EQ(serviceProxy.mLastRequestedServiceName, legacyInstanceName) <<
+            "Legacy instance not requested from service manager";
+
+    hardware::hidl_string testProviderFqInterfaceName =
+            "android.hardware.camera.provider@2.4::ICameraProvider";
+    hardware::hidl_string testProviderInstanceName = "test/0";
+    serviceProxy.mManagerNotificationInterface->onRegistration(
+            testProviderFqInterfaceName,
+            testProviderInstanceName, false);
+
+    ASSERT_EQ(serviceProxy.mLastRequestedServiceName, testProviderInstanceName) <<
+            "Incorrect instance requested from service manager";
+}
+
+TEST(CameraProviderManagerTest, MultipleVendorTagTest) {
+    hardware::hidl_string sectionName = "VendorTestSection";
+    hardware::hidl_string tagName = "VendorTestTag";
+    uint32_t tagId = VENDOR_SECTION << 16;
+    hardware::hidl_vec<common::V1_0::VendorTagSection> vendorSection;
+    CameraMetadataType tagType = CameraMetadataType::BYTE;
+    vendorSection.resize(1);
+    vendorSection[0].sectionName = sectionName;
+    vendorSection[0].tags.resize(1);
+    vendorSection[0].tags[0].tagId = tagId;
+    vendorSection[0].tags[0].tagName = tagName;
+    vendorSection[0].tags[0].tagType = tagType;
+    std::vector<hardware::hidl_string> deviceNames = {"device@3.2/test/0"};
+
+    sp<CameraProviderManager> providerManager = new CameraProviderManager();
+    sp<TestStatusListener> statusListener = new TestStatusListener();
+    TestInteractionProxy serviceProxy;
+
+    sp<TestICameraProvider> provider =  new TestICameraProvider(deviceNames,
+            vendorSection);
+    serviceProxy.setProvider(provider);
+
+    auto res = providerManager->initialize(statusListener, &serviceProxy);
+    ASSERT_EQ(res, OK) << "Unable to initialize provider manager";
+
+    hardware::hidl_string testProviderInstanceName = "test/0";
+    hardware::hidl_string testProviderFqInterfaceName =
+            "android.hardware.camera.provider@2.4::ICameraProvider";
+    serviceProxy.mManagerNotificationInterface->onRegistration(
+            testProviderFqInterfaceName, testProviderInstanceName, false);
+    ASSERT_EQ(serviceProxy.mLastRequestedServiceName, testProviderInstanceName) <<
+            "Incorrect instance requested from service manager";
+
+    hardware::hidl_string sectionNameSecond = "SecondVendorTestSection";
+    hardware::hidl_string secondTagName = "SecondVendorTestTag";
+    CameraMetadataType secondTagType = CameraMetadataType::DOUBLE;
+    vendorSection[0].sectionName = sectionNameSecond;
+    vendorSection[0].tags[0].tagId = tagId;
+    vendorSection[0].tags[0].tagName = secondTagName;
+    vendorSection[0].tags[0].tagType = secondTagType;
+    deviceNames = {"device@3.2/test2/1"};
+
+    sp<TestICameraProvider> secondProvider =  new TestICameraProvider(
+            deviceNames, vendorSection);
+    serviceProxy.setProvider(secondProvider);
+    hardware::hidl_string testProviderSecondInstanceName = "test2/0";
+    serviceProxy.mManagerNotificationInterface->onRegistration(
+            testProviderFqInterfaceName, testProviderSecondInstanceName, false);
+    ASSERT_EQ(serviceProxy.mLastRequestedServiceName,
+              testProviderSecondInstanceName) <<
+            "Incorrect instance requested from service manager";
+
+    ASSERT_EQ(NO_ERROR , providerManager->setUpVendorTags());
+    sp<VendorTagDescriptorCache> vendorCache =
+            VendorTagDescriptorCache::getGlobalVendorTagCache();
+    ASSERT_NE(nullptr, vendorCache.get());
+
+    metadata_vendor_id_t vendorId = std::hash<std::string> {} (
+            testProviderInstanceName.c_str());
+    metadata_vendor_id_t vendorIdSecond = std::hash<std::string> {} (
+            testProviderSecondInstanceName.c_str());
+
+    hardware::hidl_string resultTag = vendorCache->getTagName(tagId, vendorId);
+    ASSERT_EQ(resultTag, tagName);
+
+    resultTag = vendorCache->getTagName(tagId, vendorIdSecond);
+    ASSERT_EQ(resultTag, secondTagName);
+
+    // Check whether we can create two separate CameraMetadata instances
+    // using different tag vendor vendors.
+    camera_metadata *metaBuffer = allocate_camera_metadata(10, 20);
+    ASSERT_NE(nullptr, metaBuffer);
+    set_camera_metadata_vendor_id(metaBuffer, vendorId);
+    CameraMetadata metadata(metaBuffer);
+
+    uint8_t byteVal = 10;
+    ASSERT_TRUE(metadata.isEmpty());
+    ASSERT_EQ(OK, metadata.update(tagId, &byteVal, 1));
+    ASSERT_FALSE(metadata.isEmpty());
+    ASSERT_TRUE(metadata.exists(tagId));
+
+    metaBuffer = allocate_camera_metadata(10, 20);
+    ASSERT_NE(nullptr, metaBuffer);
+    set_camera_metadata_vendor_id(metaBuffer, vendorIdSecond);
+    CameraMetadata secondMetadata(metaBuffer);
+
+    ASSERT_TRUE(secondMetadata.isEmpty());
+    double doubleVal = 1.0f;
+    ASSERT_EQ(OK, secondMetadata.update(tagId, &doubleVal, 1));
+    ASSERT_FALSE(secondMetadata.isEmpty());
+    ASSERT_TRUE(secondMetadata.exists(tagId));
+
+    // Check whether CameraMetadata copying works as expected
+    CameraMetadata metadataCopy(metadata);
+    ASSERT_FALSE(metadataCopy.isEmpty());
+    ASSERT_TRUE(metadataCopy.exists(tagId));
+    ASSERT_EQ(OK, metadataCopy.update(tagId, &byteVal, 1));
+    ASSERT_TRUE(metadataCopy.exists(tagId));
+
+    // Check whether values are as expected
+    camera_metadata_entry_t entry = metadata.find(tagId);
+    ASSERT_EQ(1u, entry.count);
+    ASSERT_EQ(byteVal, entry.data.u8[0]);
+    entry = secondMetadata.find(tagId);
+    ASSERT_EQ(1u, entry.count);
+    ASSERT_EQ(doubleVal, entry.data.d[0]);
+
+    // Swap and erase
+    secondMetadata.swap(metadataCopy);
+    ASSERT_TRUE(metadataCopy.exists(tagId));
+    ASSERT_TRUE(secondMetadata.exists(tagId));
+    ASSERT_EQ(OK, secondMetadata.erase(tagId));
+    ASSERT_TRUE(secondMetadata.isEmpty());
+    doubleVal = 0.0f;
+    ASSERT_EQ(OK, metadataCopy.update(tagId, &doubleVal, 1));
+    entry = metadataCopy.find(tagId);
+    ASSERT_EQ(1u, entry.count);
+    ASSERT_EQ(doubleVal, entry.data.d[0]);
+
+    // Append
+    uint8_t sceneMode = ANDROID_CONTROL_SCENE_MODE_ACTION;
+    secondMetadata.update(ANDROID_CONTROL_SCENE_MODE, &sceneMode, 1);
+    // Append from two different vendor tag providers is not supported!
+    ASSERT_NE(OK, metadataCopy.append(secondMetadata));
+    ASSERT_EQ(OK, metadataCopy.erase(tagId));
+    metadataCopy.update(ANDROID_CONTROL_SCENE_MODE, &sceneMode, 1);
+    // However appending from same vendor tag provider should be fine
+    ASSERT_EQ(OK, metadata.append(secondMetadata));
+    // Append from a metadata without vendor tag provider should be supported
+    CameraMetadata regularMetadata(10, 20);
+    uint8_t controlMode = ANDROID_CONTROL_MODE_AUTO;
+    regularMetadata.update(ANDROID_CONTROL_MODE, &controlMode, 1);
+    ASSERT_EQ(OK, secondMetadata.append(regularMetadata));
+    ASSERT_EQ(2u, secondMetadata.entryCount());
+    ASSERT_EQ(2u, metadata.entryCount());
+
+    // Dump
+    metadata.dump(1, 2);
+    metadataCopy.dump(1, 2);
+    secondMetadata.dump(1, 2);
+}
diff --git a/services/camera/libcameraservice/utils/AutoConditionLock.h b/services/camera/libcameraservice/utils/AutoConditionLock.h
index b7f167b..cdbb01b 100644
--- a/services/camera/libcameraservice/utils/AutoConditionLock.h
+++ b/services/camera/libcameraservice/utils/AutoConditionLock.h
@@ -37,7 +37,7 @@
     /**
      * Construct the ConditionManger with the given Mutex.
      */
-    WaitableMutexWrapper(Mutex* mutex);
+    explicit WaitableMutexWrapper(Mutex* mutex);
 
     virtual ~WaitableMutexWrapper();
 private:
@@ -88,7 +88,7 @@
     static std::unique_ptr<AutoConditionLock> waitAndAcquire(
             const std::shared_ptr<WaitableMutexWrapper>& manager);
 private:
-    AutoConditionLock(const std::shared_ptr<WaitableMutexWrapper>& manager);
+    explicit AutoConditionLock(const std::shared_ptr<WaitableMutexWrapper>& manager);
 
     std::shared_ptr<WaitableMutexWrapper> mManager;
     Mutex::Autolock mAutoLock;
diff --git a/services/camera/libcameraservice/utils/CameraTraces.cpp b/services/camera/libcameraservice/utils/CameraTraces.cpp
index 374dc5e..0198690 100644
--- a/services/camera/libcameraservice/utils/CameraTraces.cpp
+++ b/services/camera/libcameraservice/utils/CameraTraces.cpp
@@ -74,7 +74,7 @@
         return BAD_VALUE;
     }
 
-    dprintf(fd, "Camera traces (%zu):\n", pcsList.size());
+    dprintf(fd, "== Camera error traces (%zu): ==\n", pcsList.size());
 
     if (pcsList.empty()) {
         dprintf(fd, "  No camera traces collected.\n");
diff --git a/services/camera/libcameraservice/utils/ClientManager.h b/services/camera/libcameraservice/utils/ClientManager.h
index 7ae58d5..d7135f1 100644
--- a/services/camera/libcameraservice/utils/ClientManager.h
+++ b/services/camera/libcameraservice/utils/ClientManager.h
@@ -31,6 +31,43 @@
 namespace android {
 namespace resource_policy {
 
+class ClientPriority {
+public:
+    ClientPriority(int32_t score, int32_t state) :
+        mScore(score), mState(state) {}
+
+    int32_t getScore() const { return mScore; }
+    int32_t getState() const { return mState; }
+
+    bool operator==(const ClientPriority& rhs) const {
+        return (this->mScore == rhs.mScore) && (this->mState == rhs.mState);
+    }
+
+    bool operator< (const ClientPriority& rhs)  const {
+        if (this->mScore == rhs.mScore) {
+            return this->mState < rhs.mState;
+        } else {
+            return this->mScore < rhs.mScore;
+        }
+    }
+
+    bool operator> (const ClientPriority& rhs) const {
+        return rhs < *this;
+    }
+
+    bool operator<=(const ClientPriority& rhs) const {
+        return !(*this > rhs);
+    }
+
+    bool operator>=(const ClientPriority& rhs) const {
+        return !(*this < rhs);
+    }
+
+private:
+        int32_t mScore;
+        int32_t mState;
+};
+
 // --------------------------------------------------------------------------------
 
 /**
@@ -45,9 +82,9 @@
 class ClientDescriptor final {
 public:
     ClientDescriptor(const KEY& key, const VALUE& value, int32_t cost,
-            const std::set<KEY>& conflictingKeys, int32_t priority, int32_t ownerId);
+            const std::set<KEY>& conflictingKeys, int32_t score, int32_t ownerId, int32_t state);
     ClientDescriptor(KEY&& key, VALUE&& value, int32_t cost, std::set<KEY>&& conflictingKeys,
-            int32_t priority, int32_t ownerId);
+            int32_t score, int32_t ownerId, int32_t state);
 
     ~ClientDescriptor();
 
@@ -69,7 +106,7 @@
     /**
      * Return the priority for this descriptor.
      */
-    int32_t getPriority() const;
+    const ClientPriority &getPriority() const;
 
     /**
      * Return the owner ID for this descriptor.
@@ -89,7 +126,7 @@
     /**
      * Set the proirity for this descriptor.
      */
-    void setPriority(int32_t priority);
+    void setPriority(const ClientPriority& priority);
 
     // This class is ordered by key
     template<class K, class V>
@@ -100,7 +137,7 @@
     VALUE mValue;
     int32_t mCost;
     std::set<KEY> mConflicting;
-    int32_t mPriority;
+    ClientPriority mPriority;
     int32_t mOwnerId;
 }; // class ClientDescriptor
 
@@ -111,16 +148,17 @@
 
 template<class KEY, class VALUE>
 ClientDescriptor<KEY, VALUE>::ClientDescriptor(const KEY& key, const VALUE& value, int32_t cost,
-        const std::set<KEY>& conflictingKeys, int32_t priority, int32_t ownerId) : mKey{key},
-        mValue{value}, mCost{cost}, mConflicting{conflictingKeys}, mPriority{priority},
+        const std::set<KEY>& conflictingKeys, int32_t score, int32_t ownerId, int32_t state) :
+        mKey{key}, mValue{value}, mCost{cost}, mConflicting{conflictingKeys},
+        mPriority(score, state),
         mOwnerId{ownerId} {}
 
 template<class KEY, class VALUE>
 ClientDescriptor<KEY, VALUE>::ClientDescriptor(KEY&& key, VALUE&& value, int32_t cost,
-        std::set<KEY>&& conflictingKeys, int32_t priority, int32_t ownerId) :
+        std::set<KEY>&& conflictingKeys, int32_t score, int32_t ownerId, int32_t state) :
         mKey{std::forward<KEY>(key)}, mValue{std::forward<VALUE>(value)}, mCost{cost},
-        mConflicting{std::forward<std::set<KEY>>(conflictingKeys)}, mPriority{priority},
-        mOwnerId{ownerId} {}
+        mConflicting{std::forward<std::set<KEY>>(conflictingKeys)},
+        mPriority(score, state), mOwnerId{ownerId} {}
 
 template<class KEY, class VALUE>
 ClientDescriptor<KEY, VALUE>::~ClientDescriptor() {}
@@ -141,7 +179,7 @@
 }
 
 template<class KEY, class VALUE>
-int32_t ClientDescriptor<KEY, VALUE>::getPriority() const {
+const ClientPriority& ClientDescriptor<KEY, VALUE>::getPriority() const {
     return mPriority;
 }
 
@@ -165,7 +203,7 @@
 }
 
 template<class KEY, class VALUE>
-void ClientDescriptor<KEY, VALUE>::setPriority(int32_t priority) {
+void ClientDescriptor<KEY, VALUE>::setPriority(const ClientPriority& priority) {
     mPriority = priority;
 }
 
@@ -216,7 +254,7 @@
     static constexpr int32_t DEFAULT_MAX_COST = 100;
 
     ClientManager();
-    ClientManager(int32_t totalCost);
+    explicit ClientManager(int32_t totalCost);
 
     /**
      * Add a given ClientDescriptor to the managed list.  ClientDescriptors for clients that
@@ -231,7 +269,7 @@
      * Given a map containing owner (pid) -> priority mappings, update the priority of each
      * ClientDescriptor with an owner in this mapping.
      */
-    void updatePriorities(const std::map<int32_t,int32_t>& ownerPriorityList);
+    void updatePriorities(const std::map<int32_t,ClientPriority>& ownerPriorityList);
 
     /**
      * Remove all ClientDescriptors.
@@ -383,17 +421,17 @@
 
     const KEY& key = client->getKey();
     int32_t cost = client->getCost();
-    int32_t priority = client->getPriority();
+    ClientPriority priority = client->getPriority();
     int32_t owner = client->getOwnerId();
 
     int64_t totalCost = getCurrentCostLocked() + cost;
 
     // Determine the MRU of the owners tied for having the highest priority
     int32_t highestPriorityOwner = owner;
-    int32_t highestPriority = priority;
+    ClientPriority highestPriority = priority;
     for (const auto& i : mClients) {
-        int32_t curPriority = i->getPriority();
-        if (curPriority >= highestPriority) {
+        ClientPriority curPriority = i->getPriority();
+        if (curPriority <= highestPriority) {
             highestPriority = curPriority;
             highestPriorityOwner = i->getOwnerId();
         }
@@ -408,7 +446,7 @@
     for (const auto& i : mClients) {
         const KEY& curKey = i->getKey();
         int32_t curCost = i->getCost();
-        int32_t curPriority = i->getPriority();
+        ClientPriority curPriority = i->getPriority();
         int32_t curOwner = i->getOwnerId();
 
         bool conflicting = (curKey == key || i->isConflicting(key) ||
@@ -417,13 +455,13 @@
         if (!returnIncompatibleClients) {
             // Find evicted clients
 
-            if (conflicting && curPriority > priority) {
+            if (conflicting && curPriority < priority) {
                 // Pre-existing conflicting client with higher priority exists
                 evictList.clear();
                 evictList.push_back(client);
                 return evictList;
             } else if (conflicting || ((totalCost > mMaxCost && curCost > 0) &&
-                    (curPriority <= priority) &&
+                    (curPriority >= priority) &&
                     !(highestPriorityOwner == owner && owner == curOwner))) {
                 // Add a pre-existing client to the eviction list if:
                 // - We are adding a client with higher priority that conflicts with this one.
@@ -437,7 +475,7 @@
         } else {
             // Find clients preventing the incoming client from being added
 
-            if (curPriority > priority && (conflicting || (totalCost > mMaxCost && curCost > 0))) {
+            if (curPriority < priority && (conflicting || (totalCost > mMaxCost && curCost > 0))) {
                 // Pre-existing conflicting client with higher priority exists
                 evictList.push_back(i);
             }
@@ -524,7 +562,7 @@
 
 template<class KEY, class VALUE, class LISTENER>
 void ClientManager<KEY, VALUE, LISTENER>::updatePriorities(
-        const std::map<int32_t,int32_t>& ownerPriorityList) {
+        const std::map<int32_t,ClientPriority>& ownerPriorityList) {
     Mutex::Autolock lock(mLock);
     for (auto& i : mClients) {
         auto j = ownerPriorityList.find(i->getOwnerId());
diff --git a/services/camera/libcameraservice/utils/LatencyHistogram.cpp b/services/camera/libcameraservice/utils/LatencyHistogram.cpp
new file mode 100644
index 0000000..538bb6e
--- /dev/null
+++ b/services/camera/libcameraservice/utils/LatencyHistogram.cpp
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "CameraLatencyHistogram"
+#include <inttypes.h>
+#include <utils/Log.h>
+#include <utils/String8.h>
+
+#include "LatencyHistogram.h"
+
+namespace android {
+
+CameraLatencyHistogram::CameraLatencyHistogram(int32_t binSizeMs, int32_t binCount) :
+        mBinSizeMs(binSizeMs),
+        mBinCount(binCount),
+        mBins(binCount),
+        mTotalCount(0) {
+}
+
+void CameraLatencyHistogram::add(nsecs_t start, nsecs_t end) {
+    nsecs_t duration = end - start;
+    int32_t durationMs = static_cast<int32_t>(duration / 1000000LL);
+    int32_t binIndex = durationMs / mBinSizeMs;
+
+    if (binIndex < 0) {
+        binIndex = 0;
+    } else if (binIndex >= mBinCount) {
+        binIndex = mBinCount-1;
+    }
+
+    mBins[binIndex]++;
+    mTotalCount++;
+}
+
+void CameraLatencyHistogram::reset() {
+    mBins.clear();
+    mTotalCount = 0;
+}
+
+void CameraLatencyHistogram::dump(int fd, const char* name) const {
+    if (mTotalCount == 0) {
+        return;
+    }
+
+    String8 lines;
+    lines.appendFormat("%s (%" PRId64 ") samples\n", name, mTotalCount);
+
+    String8 lineBins, lineBinCounts;
+    formatHistogramText(lineBins, lineBinCounts);
+
+    lineBins.append("\n");
+    lineBinCounts.append("\n");
+    lines.append(lineBins);
+    lines.append(lineBinCounts);
+
+    write(fd, lines.string(), lines.size());
+}
+
+void CameraLatencyHistogram::log(const char* fmt, ...) {
+    if (mTotalCount == 0) {
+        return;
+    }
+
+    va_list args;
+    va_start(args, fmt);
+    String8 histogramName = String8::formatV(fmt, args);
+    ALOGI("%s (%" PRId64 ") samples:", histogramName.string(), mTotalCount);
+    va_end(args);
+
+    String8 lineBins, lineBinCounts;
+    formatHistogramText(lineBins, lineBinCounts);
+
+    ALOGI("%s", lineBins.c_str());
+    ALOGI("%s", lineBinCounts.c_str());
+}
+
+void CameraLatencyHistogram::formatHistogramText(
+        String8& lineBins, String8& lineBinCounts) const {
+    lineBins = "  ";
+    lineBinCounts = "  ";
+
+    for (int32_t i = 0; i < mBinCount; i++) {
+        if (i == mBinCount - 1) {
+            lineBins.append("    inf (max ms)");
+        } else {
+            lineBins.appendFormat("%7d", mBinSizeMs*(i+1));
+        }
+        lineBinCounts.appendFormat("   %02.2f", 100.0*mBins[i]/mTotalCount);
+    }
+    lineBinCounts.append(" (%)");
+}
+
+}; //namespace android
diff --git a/services/camera/libcameraservice/utils/LatencyHistogram.h b/services/camera/libcameraservice/utils/LatencyHistogram.h
new file mode 100644
index 0000000..bfd9b1b
--- /dev/null
+++ b/services/camera/libcameraservice/utils/LatencyHistogram.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SERVERS_CAMERA_LATENCY_HISTOGRAM_H_
+#define ANDROID_SERVERS_CAMERA_LATENCY_HISTOGRAM_H_
+
+#include <vector>
+
+#include <utils/Timers.h>
+#include <utils/Mutex.h>
+
+namespace android {
+
+// Histogram for camera latency characteristic
+class CameraLatencyHistogram {
+public:
+    CameraLatencyHistogram() = delete;
+    CameraLatencyHistogram(int32_t binSizeMs, int32_t binCount=10);
+    void add(nsecs_t start, nsecs_t end);
+    void reset();
+
+    void dump(int fd, const char* name) const;
+    void log(const char* format, ...);
+private:
+    int32_t mBinSizeMs;
+    int32_t mBinCount;
+    std::vector<int64_t> mBins;
+    uint64_t mTotalCount;
+
+    void formatHistogramText(String8& lineBins, String8& lineBinCounts) const;
+}; // class CameraLatencyHistogram
+
+}; // namespace android
+
+#endif // ANDROID_SERVERS_CAMERA_LATENCY_HISTOGRAM_H_
diff --git a/services/camera/libcameraservice/utils/TagMonitor.cpp b/services/camera/libcameraservice/utils/TagMonitor.cpp
index f1b65bd..dec97d7 100644
--- a/services/camera/libcameraservice/utils/TagMonitor.cpp
+++ b/services/camera/libcameraservice/utils/TagMonitor.cpp
@@ -23,12 +23,14 @@
 #include <inttypes.h>
 #include <utils/Log.h>
 #include <camera/VendorTagDescriptor.h>
+#include <camera_metadata_hidden.h>
 
 namespace android {
 
 TagMonitor::TagMonitor():
         mMonitoringEnabled(false),
-        mMonitoringEvents(kMaxMonitorEvents)
+        mMonitoringEvents(kMaxMonitorEvents),
+        mVendorTagId(CAMERA_METADATA_INVALID_VENDOR_ID)
 {}
 
 const char* TagMonitor::k3aTags =
@@ -55,6 +57,13 @@
 
     sp<VendorTagDescriptor> vTags =
             VendorTagDescriptor::getGlobalVendorTagDescriptor();
+    if ((nullptr == vTags.get()) || (0 >= vTags->getTagCount())) {
+        sp<VendorTagDescriptorCache> cache =
+                VendorTagDescriptorCache::getGlobalVendorTagCache();
+        if (cache.get()) {
+            cache->getVendorTagDescriptor(mVendorTagId, &vTags);
+        }
+    }
 
     bool gotTag = false;
 
@@ -104,6 +113,15 @@
         camera_metadata_ro_entry entry = metadata.find(tag);
         CameraMetadata &lastValues = (source == REQUEST) ?
                 mLastMonitoredRequestValues : mLastMonitoredResultValues;
+        if (lastValues.isEmpty()) {
+            lastValues = CameraMetadata(mMonitoredTagList.size());
+            const camera_metadata_t *metaBuffer =
+                    lastValues.getAndLock();
+            set_camera_metadata_vendor_id(
+                    const_cast<camera_metadata_t *> (metaBuffer), mVendorTagId);
+            lastValues.unlock(metaBuffer);
+        }
+
         camera_metadata_entry lastEntry = lastValues.find(tag);
 
         if (entry.count > 0) {
@@ -129,16 +147,21 @@
             }
 
             if (isDifferent) {
-                ALOGV("%s: Tag %s changed", __FUNCTION__, get_camera_metadata_tag_name(tag));
+                ALOGV("%s: Tag %s changed", __FUNCTION__,
+                      get_local_camera_metadata_tag_name_vendor_id(
+                              tag, mVendorTagId));
                 lastValues.update(entry);
                 mMonitoringEvents.emplace(source, frameNumber, timestamp, entry);
             }
         } else if (lastEntry.count > 0) {
             // Value has been removed
-            ALOGV("%s: Tag %s removed", __FUNCTION__, get_camera_metadata_tag_name(tag));
+            ALOGV("%s: Tag %s removed", __FUNCTION__,
+                  get_local_camera_metadata_tag_name_vendor_id(
+                          tag, mVendorTagId));
             lastValues.erase(tag);
             entry.tag = tag;
-            entry.type = get_camera_metadata_tag_type(tag);
+            entry.type = get_local_camera_metadata_tag_type_vendor_id(tag,
+                    mVendorTagId);
             entry.count = 0;
             mMonitoringEvents.emplace(source, frameNumber, timestamp, entry);
         }
@@ -152,8 +175,10 @@
         dprintf(fd, "     Tag monitoring enabled for tags:\n");
         for (uint32_t tag : mMonitoredTagList) {
             dprintf(fd, "        %s.%s\n",
-                    get_camera_metadata_section_name(tag),
-                    get_camera_metadata_tag_name(tag));
+                    get_local_camera_metadata_section_name_vendor_id(tag,
+                            mVendorTagId),
+                    get_local_camera_metadata_tag_name_vendor_id(tag,
+                            mVendorTagId));
         }
     } else {
         dprintf(fd, "     Tag monitoring disabled (enable with -m <name1,..,nameN>)\n");
@@ -166,8 +191,10 @@
                     event.frameNumber, event.timestamp,
                     indentation,
                     event.source == REQUEST ? "REQ:" : "RES:",
-                    get_camera_metadata_section_name(event.tag),
-                    get_camera_metadata_tag_name(event.tag));
+                    get_local_camera_metadata_section_name_vendor_id(event.tag,
+                            mVendorTagId),
+                    get_local_camera_metadata_tag_name_vendor_id(event.tag,
+                            mVendorTagId));
             if (event.newData.size() == 0) {
                 dprintf(fd, " (Removed)\n");
             } else {
diff --git a/services/camera/libcameraservice/utils/TagMonitor.h b/services/camera/libcameraservice/utils/TagMonitor.h
index d7aa419..7155314 100644
--- a/services/camera/libcameraservice/utils/TagMonitor.h
+++ b/services/camera/libcameraservice/utils/TagMonitor.h
@@ -27,6 +27,7 @@
 
 #include <media/RingBuffer.h>
 #include <system/camera_metadata.h>
+#include <system/camera_vendor_tags.h>
 #include <camera/CameraMetadata.h>
 
 namespace android {
@@ -44,6 +45,8 @@
 
     TagMonitor();
 
+    void initialize(metadata_vendor_id_t id) { mVendorTagId = id; }
+
     // Parse tag name list (comma-separated) and if valid, enable monitoring
     // If invalid, do nothing.
     // Recognizes "3a" as a shortcut for enabling tracking 3A state, mode, and
@@ -100,6 +103,7 @@
 
     // 3A fields to use with the "3a" option
     static const char *k3aTags;
+    metadata_vendor_id_t mVendorTagId;
 };
 
 } // namespace android
diff --git a/services/mediaanalytics/Android.mk b/services/mediaanalytics/Android.mk
new file mode 100644
index 0000000..9e2813e
--- /dev/null
+++ b/services/mediaanalytics/Android.mk
@@ -0,0 +1,53 @@
+# Media Statistics service
+#
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+    main_mediametrics.cpp              \
+    MetricsSummarizerCodec.cpp         \
+    MetricsSummarizerExtractor.cpp     \
+    MetricsSummarizerPlayer.cpp        \
+    MetricsSummarizerRecorder.cpp      \
+    MetricsSummarizer.cpp              \
+    MediaAnalyticsService.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+    libcutils                   \
+    liblog                      \
+    libmedia                    \
+    libutils                    \
+    libbinder                   \
+    libdl                       \
+    libgui                      \
+    libmedia                    \
+    libmediautils               \
+    libmediametrics             \
+    libstagefright_foundation   \
+    libutils
+
+LOCAL_STATIC_LIBRARIES := \
+        libregistermsext
+
+LOCAL_C_INCLUDES :=                                                 \
+    $(TOP)/frameworks/av/media/libstagefright/include               \
+    $(TOP)/frameworks/av/media/libstagefright/rtsp                  \
+    $(TOP)/frameworks/av/media/libstagefright/wifi-display          \
+    $(TOP)/frameworks/av/media/libstagefright/webm                  \
+    $(TOP)/frameworks/av/include/media                              \
+    $(TOP)/frameworks/av/include/camera                             \
+    $(TOP)/frameworks/native/include/media/openmax                  \
+    $(TOP)/frameworks/native/include/media/hardware                 \
+    $(TOP)/external/tremolo/Tremolo                                 \
+    libcore/include
+
+
+LOCAL_MODULE:= mediametrics
+
+LOCAL_INIT_RC := mediametrics.rc
+
+LOCAL_CFLAGS := -Werror -Wall -Wno-error=deprecated-declarations
+LOCAL_CLANG := true
+
+include $(BUILD_EXECUTABLE)
diff --git a/services/mediaanalytics/MediaAnalyticsService.cpp b/services/mediaanalytics/MediaAnalyticsService.cpp
new file mode 100644
index 0000000..876c685
--- /dev/null
+++ b/services/mediaanalytics/MediaAnalyticsService.cpp
@@ -0,0 +1,721 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Proxy for media player implementations
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaAnalyticsService"
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <dirent.h>
+#include <unistd.h>
+
+#include <string.h>
+
+#include <cutils/atomic.h>
+#include <cutils/properties.h> // for property_get
+
+#include <utils/misc.h>
+
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <binder/MemoryHeapBase.h>
+#include <binder/MemoryBase.h>
+#include <gui/Surface.h>
+#include <utils/Errors.h>  // for status_t
+#include <utils/List.h>
+#include <utils/String8.h>
+#include <utils/SystemClock.h>
+#include <utils/Timers.h>
+#include <utils/Vector.h>
+
+#include <media/AudioPolicyHelper.h>
+#include <media/IMediaHTTPService.h>
+#include <media/IRemoteDisplay.h>
+#include <media/IRemoteDisplayClient.h>
+#include <media/MediaPlayerInterface.h>
+#include <media/mediarecorder.h>
+#include <media/MediaMetadataRetrieverInterface.h>
+#include <media/Metadata.h>
+#include <media/AudioTrack.h>
+#include <media/MemoryLeakTrackUtil.h>
+#include <media/stagefright/MediaCodecList.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/Utils.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/ALooperRoster.h>
+#include <mediautils/BatteryNotifier.h>
+
+//#include <memunreachable/memunreachable.h>
+#include <system/audio.h>
+
+#include <private/android_filesystem_config.h>
+
+#include "MediaAnalyticsService.h"
+
+#include "MetricsSummarizer.h"
+#include "MetricsSummarizerCodec.h"
+#include "MetricsSummarizerExtractor.h"
+#include "MetricsSummarizerPlayer.h"
+#include "MetricsSummarizerRecorder.h"
+
+
+namespace android {
+
+
+
+// summarized records
+// up to 48 sets, each covering an hour -- at least 2 days of coverage
+// (will be longer if there are hours without any media action)
+static const nsecs_t kNewSetIntervalNs = 3600*(1000*1000*1000ll);
+static const int kMaxRecordSets = 48;
+// individual records kept in memory
+static const int kMaxRecords    = 100;
+
+
+static const char *kServiceName = "media.metrics";
+
+
+//using android::status_t;
+//using android::OK;
+//using android::BAD_VALUE;
+//using android::NOT_ENOUGH_DATA;
+//using android::Parcel;
+
+
+void MediaAnalyticsService::instantiate() {
+    defaultServiceManager()->addService(
+            String16(kServiceName), new MediaAnalyticsService());
+}
+
+// handle sets of summarizers
+MediaAnalyticsService::SummarizerSet::SummarizerSet() {
+    mSummarizers = new List<MetricsSummarizer *>();
+}
+MediaAnalyticsService::SummarizerSet::~SummarizerSet() {
+    // empty the list
+    List<MetricsSummarizer *> *l = mSummarizers;
+    while (l->size() > 0) {
+        MetricsSummarizer *summarizer = *(l->begin());
+        l->erase(l->begin());
+        delete summarizer;
+    }
+}
+
+void MediaAnalyticsService::newSummarizerSet() {
+    ALOGD("MediaAnalyticsService::newSummarizerSet");
+    MediaAnalyticsService::SummarizerSet *set = new MediaAnalyticsService::SummarizerSet();
+    nsecs_t now = systemTime(SYSTEM_TIME_REALTIME);
+    set->setStarted(now);
+
+    set->appendSummarizer(new MetricsSummarizerExtractor("extractor"));
+    set->appendSummarizer(new MetricsSummarizerCodec("codec"));
+    set->appendSummarizer(new MetricsSummarizerPlayer("nuplayer"));
+    set->appendSummarizer(new MetricsSummarizerRecorder("recorder"));
+
+    // ALWAYS at the end, since it catches everything
+    set->appendSummarizer(new MetricsSummarizer(NULL));
+
+    // inject this set at the BACK of the list.
+    mSummarizerSets->push_back(set);
+    mCurrentSet = set;
+
+    // limit the # that we have
+    if (mMaxRecordSets > 0) {
+        List<SummarizerSet *> *l = mSummarizerSets;
+        while (l->size() > (size_t) mMaxRecordSets) {
+            ALOGD("Deleting oldest record set....");
+            MediaAnalyticsService::SummarizerSet *oset = *(l->begin());
+            l->erase(l->begin());
+            delete oset;
+            mSetsDiscarded++;
+        }
+    }
+}
+
+MediaAnalyticsService::MediaAnalyticsService()
+        : mMaxRecords(kMaxRecords),
+          mMaxRecordSets(kMaxRecordSets),
+          mNewSetInterval(kNewSetIntervalNs) {
+
+    ALOGD("MediaAnalyticsService created");
+    // clear our queues
+    mOpen = new List<MediaAnalyticsItem *>();
+    mFinalized = new List<MediaAnalyticsItem *>();
+
+    mSummarizerSets = new List<MediaAnalyticsService::SummarizerSet *>();
+    newSummarizerSet();
+
+    mItemsSubmitted = 0;
+    mItemsFinalized = 0;
+    mItemsDiscarded = 0;
+
+    mLastSessionID = 0;
+    // recover any persistency we set up
+    // etc
+}
+
+MediaAnalyticsService::~MediaAnalyticsService() {
+        ALOGD("MediaAnalyticsService destroyed");
+
+    // clean out mOpen and mFinalized
+    delete mOpen;
+    mOpen = NULL;
+    delete mFinalized;
+    mFinalized = NULL;
+
+    // XXX: clean out the summaries
+}
+
+
+MediaAnalyticsItem::SessionID_t MediaAnalyticsService::generateUniqueSessionID() {
+    // generate a new sessionid
+
+    Mutex::Autolock _l(mLock_ids);
+    return (++mLastSessionID);
+}
+
+// caller surrenders ownership of 'item'
+MediaAnalyticsItem::SessionID_t MediaAnalyticsService::submit(MediaAnalyticsItem *item, bool forcenew) {
+
+    MediaAnalyticsItem::SessionID_t id = MediaAnalyticsItem::SessionIDInvalid;
+
+    // we control these, generally not trusting user input
+    nsecs_t now = systemTime(SYSTEM_TIME_REALTIME);
+    item->setTimestamp(now);
+    int pid = IPCThreadState::self()->getCallingPid();
+    int uid = IPCThreadState::self()->getCallingUid();
+
+    int uid_given = item->getUid();
+    int pid_given = item->getPid();
+
+    // although we do make exceptions for particular client uids
+    // that we know we trust.
+    //
+    bool isTrusted = false;
+
+    switch (uid)  {
+        case AID_MEDIA:
+        case AID_MEDIA_CODEC:
+        case AID_MEDIA_EX:
+        case AID_MEDIA_DRM:
+            // trusted source, only override default values
+                isTrusted = true;
+            if (uid_given == (-1)) {
+                item->setUid(uid);
+            }
+            if (pid_given == (-1)) {
+                item->setPid(pid);
+            }
+            break;
+        default:
+            isTrusted = false;
+            item->setPid(pid);
+            item->setUid(uid);
+            break;
+    }
+
+
+    mItemsSubmitted++;
+
+    // validate the record; we discard if we don't like it
+    if (contentValid(item, isTrusted) == false) {
+        delete item;
+        return MediaAnalyticsItem::SessionIDInvalid;
+    }
+
+
+    // if we have a sesisonid in the new record, look to make
+    // sure it doesn't appear in the finalized list.
+    // XXX: this is for security / DOS prevention.
+    // may also require that we persist the unique sessionIDs
+    // across boots [instead of within a single boot]
+
+
+    // match this new record up against records in the open
+    // list...
+    // if there's a match, merge them together
+    // deal with moving the old / merged record into the finalized que
+
+    bool finalizing = item->getFinalized();
+
+    // if finalizing, we'll remove it
+    MediaAnalyticsItem *oitem = findItem(mOpen, item, finalizing | forcenew);
+    if (oitem != NULL) {
+        if (forcenew) {
+            // old one gets finalized, then we insert the new one
+            // so we'll have 2 records at the end of this.
+            // but don't finalize an empty record
+            if (oitem->count() == 0) {
+                // we're responsible for disposing of the dead record
+                delete oitem;
+                oitem = NULL;
+            } else {
+                oitem->setFinalized(true);
+                summarize(oitem);
+                saveItem(mFinalized, oitem, 0);
+            }
+            // new record could itself be marked finalized...
+            if (finalizing) {
+                summarize(item);
+                saveItem(mFinalized, item, 0);
+                mItemsFinalized++;
+            } else {
+                saveItem(mOpen, item, 1);
+            }
+            id = item->getSessionID();
+        } else {
+            // combine the records, send it to finalized if appropriate
+            oitem->merge(item);
+            if (finalizing) {
+                summarize(oitem);
+                saveItem(mFinalized, oitem, 0);
+                mItemsFinalized++;
+            }
+            id = oitem->getSessionID();
+
+            // we're responsible for disposing of the dead record
+            delete item;
+            item = NULL;
+        }
+    } else {
+        // nothing to merge, save the new record
+        id = item->getSessionID();
+        if (finalizing) {
+            if (item->count() == 0) {
+                // drop empty records
+                delete item;
+                item = NULL;
+            } else {
+                summarize(item);
+                saveItem(mFinalized, item, 0);
+                mItemsFinalized++;
+            }
+        } else {
+            saveItem(mOpen, item, 1);
+        }
+    }
+    return id;
+}
+
+status_t MediaAnalyticsService::dump(int fd, const Vector<String16>& args)
+{
+    const size_t SIZE = 512;
+    char buffer[SIZE];
+    String8 result;
+
+    if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
+        snprintf(buffer, SIZE, "Permission Denial: "
+                "can't dump MediaAnalyticsService from pid=%d, uid=%d\n",
+                IPCThreadState::self()->getCallingPid(),
+                IPCThreadState::self()->getCallingUid());
+        result.append(buffer);
+        write(fd, result.string(), result.size());
+        return NO_ERROR;
+    }
+
+    // crack any parameters
+    bool clear = false;
+    bool summary = false;
+    nsecs_t ts_since = 0;
+    String16 summaryOption("-summary");
+    String16 clearOption("-clear");
+    String16 sinceOption("-since");
+    String16 helpOption("-help");
+    String16 onlyOption("-only");
+    const char *only = NULL;
+    int n = args.size();
+    for (int i = 0; i < n; i++) {
+        String8 myarg(args[i]);
+        if (args[i] == clearOption) {
+            clear = true;
+        } else if (args[i] == summaryOption) {
+            summary = true;
+        } else if (args[i] == sinceOption) {
+            i++;
+            if (i < n) {
+                String8 value(args[i]);
+                char *endp;
+                const char *p = value.string();
+                ts_since = strtoll(p, &endp, 10);
+                if (endp == p || *endp != '\0') {
+                    ts_since = 0;
+                }
+            } else {
+                ts_since = 0;
+            }
+            // command line is milliseconds; internal units are nano-seconds
+            ts_since *= 1000*1000;
+        } else if (args[i] == onlyOption) {
+            i++;
+            if (i < n) {
+                String8 value(args[i]);
+                const char *p = value.string();
+                char *q = strdup(p);
+                if (q != NULL) {
+                    if (only != NULL) {
+                        free((void*)only);
+                    }
+                only = q;
+                }
+            }
+        } else if (args[i] == helpOption) {
+            result.append("Recognized parameters:\n");
+            result.append("-help        this help message\n");
+            result.append("-summary     show summary info\n");
+            result.append("-clear       clears out saved records\n");
+            result.append("-only X      process records for component X\n");
+            result.append("-since X     include records since X\n");
+            result.append("             (X is milliseconds since the UNIX epoch)\n");
+            write(fd, result.string(), result.size());
+            return NO_ERROR;
+        }
+    }
+
+    Mutex::Autolock _l(mLock);
+
+    // we ALWAYS dump this piece
+    snprintf(buffer, SIZE, "Dump of the %s process:\n", kServiceName);
+    result.append(buffer);
+
+    dumpHeaders(result, ts_since);
+
+    // only want 1, to avoid confusing folks that parse the output
+    if (summary) {
+        dumpSummaries(result, ts_since, only);
+    } else {
+        dumpRecent(result, ts_since, only);
+    }
+
+
+    if (clear) {
+        // remove everything from the finalized queue
+        while (mFinalized->size() > 0) {
+            MediaAnalyticsItem * oitem = *(mFinalized->begin());
+            mFinalized->erase(mFinalized->begin());
+            delete oitem;
+            mItemsDiscarded++;
+        }
+
+        // shall we clear the summary data too?
+
+    }
+
+    write(fd, result.string(), result.size());
+    return NO_ERROR;
+}
+
+// dump headers
+void MediaAnalyticsService::dumpHeaders(String8 &result, nsecs_t ts_since) {
+    const size_t SIZE = 512;
+    char buffer[SIZE];
+
+    int enabled = MediaAnalyticsItem::isEnabled();
+    if (enabled) {
+        snprintf(buffer, SIZE, "Metrics gathering: enabled\n");
+    } else {
+        snprintf(buffer, SIZE, "Metrics gathering: DISABLED via property\n");
+    }
+    result.append(buffer);
+
+    snprintf(buffer, SIZE,
+        "Since Boot: Submissions: %" PRId64
+            " Finalizations: %" PRId64
+        " Discarded: %" PRId64 "\n",
+        mItemsSubmitted, mItemsFinalized, mItemsDiscarded);
+    result.append(buffer);
+    snprintf(buffer, SIZE,
+        "Summary Sets Discarded: %" PRId64 "\n", mSetsDiscarded);
+    result.append(buffer);
+    if (ts_since != 0) {
+        snprintf(buffer, SIZE,
+            "Dumping Queue entries more recent than: %" PRId64 "\n",
+            (int64_t) ts_since);
+        result.append(buffer);
+    }
+}
+
+// dump summary info
+void MediaAnalyticsService::dumpSummaries(String8 &result, nsecs_t ts_since, const char *only) {
+    const size_t SIZE = 512;
+    char buffer[SIZE];
+    int slot = 0;
+
+    snprintf(buffer, SIZE, "\nSummarized Metrics:\n");
+    result.append(buffer);
+
+    // have each of the distillers dump records
+    if (mSummarizerSets != NULL) {
+        List<SummarizerSet *>::iterator itSet = mSummarizerSets->begin();
+        for (; itSet != mSummarizerSets->end(); itSet++) {
+            nsecs_t when = (*itSet)->getStarted();
+            if (when < ts_since) {
+                continue;
+            }
+            List<MetricsSummarizer *> *list = (*itSet)->getSummarizers();
+            List<MetricsSummarizer *>::iterator it = list->begin();
+            for (; it != list->end(); it++) {
+                if (only != NULL && strcmp(only, (*it)->getKey()) != 0) {
+                    ALOGV("Told to omit '%s'", (*it)->getKey());
+                }
+                AString distilled = (*it)->dumpSummary(slot, only);
+                result.append(distilled.c_str());
+            }
+        }
+    }
+}
+
+// the recent, detailed queues
+void MediaAnalyticsService::dumpRecent(String8 &result, nsecs_t ts_since, const char * only) {
+    const size_t SIZE = 512;
+    char buffer[SIZE];
+
+    // show the recently recorded records
+    snprintf(buffer, sizeof(buffer), "\nFinalized Metrics (oldest first):\n");
+    result.append(buffer);
+    result.append(this->dumpQueue(mFinalized, ts_since, only));
+
+    snprintf(buffer, sizeof(buffer), "\nIn-Progress Metrics (newest first):\n");
+    result.append(buffer);
+    result.append(this->dumpQueue(mOpen, ts_since, only));
+
+    // show who is connected and injecting records?
+    // talk about # records fed to the 'readers'
+    // talk about # records we discarded, perhaps "discarded w/o reading" too
+}
+// caller has locked mLock...
+String8 MediaAnalyticsService::dumpQueue(List<MediaAnalyticsItem *> *theList) {
+    return dumpQueue(theList, (nsecs_t) 0, NULL);
+}
+
+String8 MediaAnalyticsService::dumpQueue(List<MediaAnalyticsItem *> *theList, nsecs_t ts_since, const char * only) {
+    String8 result;
+    int slot = 0;
+
+    if (theList->empty()) {
+            result.append("empty\n");
+    } else {
+        List<MediaAnalyticsItem *>::iterator it = theList->begin();
+        for (; it != theList->end(); it++) {
+            nsecs_t when = (*it)->getTimestamp();
+            if (when < ts_since) {
+                continue;
+            }
+            if (only != NULL &&
+                strcmp(only, (*it)->getKey().c_str()) != 0) {
+                ALOGV("Omit '%s', it's not '%s'", (*it)->getKey().c_str(), only);
+                continue;
+            }
+            AString entry = (*it)->toString();
+            result.appendFormat("%5d: %s\n", slot, entry.c_str());
+            slot++;
+        }
+    }
+
+    return result;
+}
+
+//
+// Our Cheap in-core, non-persistent records management.
+// XXX: rewrite this to manage persistence, etc.
+
+// insert appropriately into queue
+void MediaAnalyticsService::saveItem(List<MediaAnalyticsItem *> *l, MediaAnalyticsItem * item, int front) {
+
+    Mutex::Autolock _l(mLock);
+
+    // adding at back of queue (fifo order)
+    if (front)  {
+        l->push_front(item);
+    } else {
+        l->push_back(item);
+    }
+
+    // keep removing old records the front until we're in-bounds
+    if (mMaxRecords > 0) {
+        while (l->size() > (size_t) mMaxRecords) {
+            MediaAnalyticsItem * oitem = *(l->begin());
+            l->erase(l->begin());
+            delete oitem;
+            mItemsDiscarded++;
+        }
+    }
+}
+
+// are they alike enough that nitem can be folded into oitem?
+static bool compatibleItems(MediaAnalyticsItem * oitem, MediaAnalyticsItem * nitem) {
+
+    if (0) {
+        ALOGD("Compare: o %s n %s",
+              oitem->toString().c_str(), nitem->toString().c_str());
+    }
+
+    // general safety
+    if (nitem->getUid() != oitem->getUid()) {
+        return false;
+    }
+    if (nitem->getPid() != oitem->getPid()) {
+        return false;
+    }
+
+    // key -- needs to match
+    if (nitem->getKey() == oitem->getKey()) {
+        // still in the game.
+    } else {
+        return false;
+    }
+
+    // session id -- empty field in new is allowed
+    MediaAnalyticsItem::SessionID_t osession = oitem->getSessionID();
+    MediaAnalyticsItem::SessionID_t nsession = nitem->getSessionID();
+    if (nsession != osession) {
+        // incoming '0' matches value in osession
+        if (nsession != 0) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+// find the incomplete record that this will overlay
+MediaAnalyticsItem *MediaAnalyticsService::findItem(List<MediaAnalyticsItem*> *theList, MediaAnalyticsItem *nitem, bool removeit) {
+    if (nitem == NULL) {
+        return NULL;
+    }
+
+    MediaAnalyticsItem *item = NULL;
+
+    Mutex::Autolock _l(mLock);
+
+    for (List<MediaAnalyticsItem *>::iterator it = theList->begin();
+        it != theList->end(); it++) {
+        MediaAnalyticsItem *tmp = (*it);
+
+        if (!compatibleItems(tmp, nitem)) {
+            continue;
+        }
+
+        // we match! this is the one I want.
+        if (removeit) {
+            theList->erase(it);
+        }
+        item = tmp;
+        break;
+    }
+    return item;
+}
+
+
+// delete the indicated record
+void MediaAnalyticsService::deleteItem(List<MediaAnalyticsItem *> *l, MediaAnalyticsItem *item) {
+
+    Mutex::Autolock _l(mLock);
+
+    for (List<MediaAnalyticsItem *>::iterator it = l->begin();
+        it != l->end(); it++) {
+        if ((*it)->getSessionID() != item->getSessionID())
+            continue;
+        delete *it;
+        l->erase(it);
+        break;
+    }
+}
+
+static AString allowedKeys[] =
+{
+    "codec",
+    "extractor"
+};
+
+static const int nAllowedKeys = sizeof(allowedKeys) / sizeof(allowedKeys[0]);
+
+// are the contents good
+bool MediaAnalyticsService::contentValid(MediaAnalyticsItem *item, bool isTrusted) {
+
+    // untrusted uids can only send us a limited set of keys
+    if (isTrusted == false) {
+        // restrict to a specific set of keys
+        AString key = item->getKey();
+
+        size_t i;
+        for(i = 0; i < nAllowedKeys; i++) {
+            if (key == allowedKeys[i]) {
+                break;
+            }
+        }
+        if (i == nAllowedKeys) {
+            ALOGD("Ignoring (key): %s", item->toString().c_str());
+            return false;
+        }
+    }
+
+    // internal consistency
+
+    return true;
+}
+
+// are we rate limited, normally false
+bool MediaAnalyticsService::rateLimited(MediaAnalyticsItem *) {
+
+    return false;
+}
+
+// insert into the appropriate summarizer.
+// we make our own copy to save/summarize
+void MediaAnalyticsService::summarize(MediaAnalyticsItem *item) {
+
+    ALOGV("MediaAnalyticsService::summarize()");
+
+    if (item == NULL) {
+        return;
+    }
+
+    nsecs_t now = systemTime(SYSTEM_TIME_REALTIME);
+    if (mCurrentSet == NULL
+        || (mCurrentSet->getStarted() + mNewSetInterval < now)) {
+        newSummarizerSet();
+    }
+
+    if (mCurrentSet == NULL) {
+        return;
+    }
+
+    List<MetricsSummarizer *> *summarizers = mCurrentSet->getSummarizers();
+    List<MetricsSummarizer *>::iterator it = summarizers->begin();
+    for (; it != summarizers->end(); it++) {
+        if ((*it)->isMine(*item)) {
+            break;
+        }
+    }
+    if (it == summarizers->end()) {
+        ALOGD("no handler for type %s", item->getKey().c_str());
+        return;               // no handler
+    }
+
+    // invoke the summarizer. summarizer will make whatever copies
+    // it wants; the caller retains ownership of item.
+
+    (*it)->handleRecord(item);
+
+}
+
+} // namespace android
diff --git a/services/mediaanalytics/MediaAnalyticsService.h b/services/mediaanalytics/MediaAnalyticsService.h
new file mode 100644
index 0000000..6685967
--- /dev/null
+++ b/services/mediaanalytics/MediaAnalyticsService.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_MEDIAANALYTICSSERVICE_H
+#define ANDROID_MEDIAANALYTICSSERVICE_H
+
+#include <arpa/inet.h>
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+#include "MetricsSummarizer.h"
+
+
+namespace android {
+
+class MediaAnalyticsService : public BnMediaAnalyticsService
+{
+
+ public:
+
+    // on this side, caller surrenders ownership
+    virtual int64_t submit(MediaAnalyticsItem *item, bool forcenew);
+
+    static  void            instantiate();
+    virtual status_t        dump(int fd, const Vector<String16>& args);
+
+                            MediaAnalyticsService();
+    virtual                 ~MediaAnalyticsService();
+
+ private:
+    MediaAnalyticsItem::SessionID_t generateUniqueSessionID();
+
+    // statistics about our analytics
+    int64_t mItemsSubmitted;
+    int64_t mItemsFinalized;
+    int64_t mItemsDiscarded;
+    int64_t mSetsDiscarded;
+    MediaAnalyticsItem::SessionID_t mLastSessionID;
+
+    // partitioned a bit so we don't over serialize
+    mutable Mutex           mLock;
+    mutable Mutex           mLock_ids;
+
+    // the most we hold in memory
+    // up to this many in each queue (open, finalized)
+    int32_t mMaxRecords;
+    // # of sets of summaries
+    int32_t mMaxRecordSets;
+    // nsecs until we start a new record set
+    nsecs_t mNewSetInterval;
+
+    // input validation after arrival from client
+    bool contentValid(MediaAnalyticsItem *item, bool isTrusted);
+    bool rateLimited(MediaAnalyticsItem *);
+
+    // the ones that are still open
+    // (newest at front) since we keep looking for them
+    List<MediaAnalyticsItem *> *mOpen;
+    // the ones we've finalized
+    // (oldest at front) so it prints nicely for dumpsys
+    List<MediaAnalyticsItem *> *mFinalized;
+    // searching within these queues: queue, key
+    MediaAnalyticsItem *findItem(List<MediaAnalyticsItem *> *,
+                                     MediaAnalyticsItem *, bool removeit);
+
+    // summarizers
+    void summarize(MediaAnalyticsItem *item);
+    class SummarizerSet {
+        nsecs_t mStarted;
+        List<MetricsSummarizer *> *mSummarizers;
+
+      public:
+        void appendSummarizer(MetricsSummarizer *s) {
+            if (s) {
+                mSummarizers->push_back(s);
+            }
+        };
+        nsecs_t getStarted() { return mStarted;}
+        void setStarted(nsecs_t started) {mStarted = started;}
+        List<MetricsSummarizer *> *getSummarizers() { return mSummarizers;}
+
+        SummarizerSet();
+        ~SummarizerSet();
+    };
+    void newSummarizerSet();
+    List<SummarizerSet *> *mSummarizerSets;
+    SummarizerSet *mCurrentSet;
+    List<MetricsSummarizer *> *getFirstSet() {
+        List<SummarizerSet *>::iterator first = mSummarizerSets->begin();
+        if (first != mSummarizerSets->end()) {
+            return (*first)->getSummarizers();
+        }
+        return NULL;
+    }
+
+    void saveItem(MediaAnalyticsItem);
+    void saveItem(List<MediaAnalyticsItem *> *, MediaAnalyticsItem *, int);
+    void deleteItem(List<MediaAnalyticsItem *> *, MediaAnalyticsItem *);
+
+    // support for generating output
+    String8 dumpQueue(List<MediaAnalyticsItem*> *);
+    String8 dumpQueue(List<MediaAnalyticsItem*> *, nsecs_t, const char *only);
+
+    void dumpHeaders(String8 &result, nsecs_t ts_since);
+    void dumpSummaries(String8 &result, nsecs_t ts_since, const char * only);
+    void dumpRecent(String8 &result, nsecs_t ts_since, const char * only);
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_MEDIAANALYTICSSERVICE_H
diff --git a/services/mediaanalytics/MetricsSummarizer.cpp b/services/mediaanalytics/MetricsSummarizer.cpp
new file mode 100644
index 0000000..6d5787e
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizer.cpp
@@ -0,0 +1,281 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "MetricsSummarizer"
+#include <utils/Log.h>
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+#include "MetricsSummarizer.h"
+
+
+namespace android {
+
+#define DEBUG_SORT      0
+#define DEBUG_QUEUE     0
+
+
+MetricsSummarizer::MetricsSummarizer(const char *key)
+    : mIgnorables(NULL)
+{
+    ALOGV("MetricsSummarizer::MetricsSummarizer");
+
+    if (key == NULL) {
+        mKey = key;
+    } else {
+        mKey = strdup(key);
+    }
+
+    mSummaries = new List<MediaAnalyticsItem *>();
+}
+
+MetricsSummarizer::~MetricsSummarizer()
+{
+    ALOGV("MetricsSummarizer::~MetricsSummarizer");
+    if (mKey) {
+        free((void *)mKey);
+        mKey = NULL;
+    }
+
+    // clear the list of items we have saved
+    while (mSummaries->size() > 0) {
+        MediaAnalyticsItem * oitem = *(mSummaries->begin());
+        if (DEBUG_QUEUE) {
+            ALOGD("zap old record: key %s sessionID %" PRId64 " ts %" PRId64 "",
+                oitem->getKey().c_str(), oitem->getSessionID(),
+                oitem->getTimestamp());
+        }
+        mSummaries->erase(mSummaries->begin());
+        delete oitem;
+    }
+}
+
+// so we know what summarizer we were using
+const char *MetricsSummarizer::getKey() {
+    const char *value = mKey;
+    if (value == NULL) {
+        value = "unknown";
+    }
+    return value;
+}
+
+// should the record be given to this summarizer
+bool MetricsSummarizer::isMine(MediaAnalyticsItem &item)
+{
+    if (mKey == NULL)
+        return true;
+    AString itemKey = item.getKey();
+    if (strcmp(mKey, itemKey.c_str()) != 0) {
+        return false;
+    }
+    return true;
+}
+
+AString MetricsSummarizer::dumpSummary(int &slot)
+{
+    return dumpSummary(slot, NULL);
+}
+
+AString MetricsSummarizer::dumpSummary(int &slot, const char *only)
+{
+    AString value = "";
+
+    List<MediaAnalyticsItem *>::iterator it = mSummaries->begin();
+    if (it != mSummaries->end()) {
+        char buf[16];   // enough for "#####: "
+        for (; it != mSummaries->end(); it++) {
+            if (only != NULL && strcmp(only, (*it)->getKey().c_str()) != 0) {
+                continue;
+            }
+            AString entry = (*it)->toString();
+            snprintf(buf, sizeof(buf), "%5d: ", slot);
+            value.append(buf);
+            value.append(entry.c_str());
+            value.append("\n");
+            slot++;
+        }
+    }
+    return value;
+}
+
+void MetricsSummarizer::setIgnorables(const char **ignorables) {
+    mIgnorables = ignorables;
+}
+
+const char **MetricsSummarizer::getIgnorables() {
+    return mIgnorables;
+}
+
+void MetricsSummarizer::handleRecord(MediaAnalyticsItem *item) {
+
+    ALOGV("MetricsSummarizer::handleRecord() for %s",
+                item == NULL ? "<nothing>" : item->toString().c_str());
+
+    if (item == NULL) {
+        return;
+    }
+
+    List<MediaAnalyticsItem *>::iterator it = mSummaries->begin();
+    for (; it != mSummaries->end(); it++) {
+        bool good = sameAttributes((*it), item, getIgnorables());
+        ALOGV("Match against %s says %d",
+              (*it)->toString().c_str(), good);
+        if (good)
+            break;
+    }
+    if (it == mSummaries->end()) {
+            ALOGV("save new record");
+            item = item->dup();
+            if (item == NULL) {
+                ALOGE("unable to save MediaMetrics record");
+            }
+            sortProps(item);
+            item->setInt32("aggregated",1);
+            mSummaries->push_back(item);
+    } else {
+            ALOGV("increment existing record");
+            (*it)->addInt32("aggregated",1);
+            mergeRecord(*(*it), *item);
+    }
+}
+
+void MetricsSummarizer::mergeRecord(MediaAnalyticsItem &/*have*/, MediaAnalyticsItem &/*item*/) {
+    // default is no further massaging.
+    ALOGV("MetricsSummarizer::mergeRecord() [default]");
+    return;
+}
+
+
+//
+// Comparators
+//
+
+// testing that all of 'single' is in 'summ'
+// and that the values match.
+// 'summ' may have extra fields.
+// 'ignorable' is a set of things that we don't worry about matching up
+// (usually time- or count-based values we'll sum elsewhere)
+bool MetricsSummarizer::sameAttributes(MediaAnalyticsItem *summ, MediaAnalyticsItem *single, const char **ignorable) {
+
+    if (single == NULL || summ == NULL) {
+        return false;
+    }
+    ALOGV("MetricsSummarizer::sameAttributes(): summ %s", summ->toString().c_str());
+    ALOGV("MetricsSummarizer::sameAttributes(): single %s", single->toString().c_str());
+
+    // this can be made better.
+    for(size_t i=0;i<single->mPropCount;i++) {
+        MediaAnalyticsItem::Prop *prop1 = &(single->mProps[i]);
+        const char *attrName = prop1->mName;
+        ALOGV("compare on attr '%s'", attrName);
+
+        // is it something we should ignore
+        if (ignorable != NULL) {
+            const char **ig = ignorable;
+            while (*ig) {
+                if (strcmp(*ig, attrName) == 0) {
+                    break;
+                }
+                ig++;
+            }
+            if (*ig) {
+                ALOGV("we don't mind that it has attr '%s'", attrName);
+                continue;
+            }
+        }
+
+        MediaAnalyticsItem::Prop *prop2 = summ->findProp(attrName);
+        if (prop2 == NULL) {
+            ALOGV("summ doesn't have this attr");
+            return false;
+        }
+        if (prop1->mType != prop2->mType) {
+            ALOGV("mismatched attr types");
+            return false;
+        }
+        switch (prop1->mType) {
+            case MediaAnalyticsItem::kTypeInt32:
+                if (prop1->u.int32Value != prop2->u.int32Value)
+                    return false;
+                break;
+            case MediaAnalyticsItem::kTypeInt64:
+                if (prop1->u.int64Value != prop2->u.int64Value)
+                    return false;
+                break;
+            case MediaAnalyticsItem::kTypeDouble:
+                // XXX: watch out for floating point comparisons!
+                if (prop1->u.doubleValue != prop2->u.doubleValue)
+                    return false;
+                break;
+            case MediaAnalyticsItem::kTypeCString:
+                if (strcmp(prop1->u.CStringValue, prop2->u.CStringValue) != 0)
+                    return false;
+                break;
+            case MediaAnalyticsItem::kTypeRate:
+                if (prop1->u.rate.count != prop2->u.rate.count)
+                    return false;
+                if (prop1->u.rate.duration != prop2->u.rate.duration)
+                    return false;
+                break;
+            default:
+                return false;
+        }
+    }
+
+    return true;
+}
+
+bool MetricsSummarizer::sameAttributesId(MediaAnalyticsItem *summ, MediaAnalyticsItem *single, const char **ignorable) {
+
+    // verify same user
+    if (summ->mPid != single->mPid)
+        return false;
+
+    // and finally do the more expensive validation of the attributes
+    return sameAttributes(summ, single, ignorable);
+}
+
+int MetricsSummarizer::PropSorter(const void *a, const void *b) {
+    MediaAnalyticsItem::Prop *ai = (MediaAnalyticsItem::Prop *)a;
+    MediaAnalyticsItem::Prop *bi = (MediaAnalyticsItem::Prop *)b;
+    return strcmp(ai->mName, bi->mName);
+}
+
+// we sort in the summaries so that it looks pretty in the dumpsys
+void MetricsSummarizer::sortProps(MediaAnalyticsItem *item) {
+    if (item->mPropCount != 0) {
+        if (DEBUG_SORT) {
+            ALOGD("sortProps(pre): %s", item->toString().c_str());
+        }
+        qsort(item->mProps, item->mPropCount,
+              sizeof(MediaAnalyticsItem::Prop), MetricsSummarizer::PropSorter);
+        if (DEBUG_SORT) {
+            ALOGD("sortProps(pst): %s", item->toString().c_str());
+        }
+    }
+}
+
+} // namespace android
diff --git a/services/mediaanalytics/MetricsSummarizer.h b/services/mediaanalytics/MetricsSummarizer.h
new file mode 100644
index 0000000..0b64eac
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizer.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_METRICSSUMMARIZER_H
+#define ANDROID_METRICSSUMMARIZER_H
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+
+namespace android {
+
+class MetricsSummarizer
+{
+
+ public:
+
+    MetricsSummarizer(const char *key);
+    virtual ~MetricsSummarizer();
+
+    // show the key
+    const char * getKey();
+
+    // should the record be given to this summarizer
+    bool isMine(MediaAnalyticsItem &item);
+
+    // hand the record to this summarizer
+    void handleRecord(MediaAnalyticsItem *item);
+
+    virtual void mergeRecord(MediaAnalyticsItem &have, MediaAnalyticsItem &incoming);
+
+    // dump the summarized records (for dumpsys)
+    AString dumpSummary(int &slot);
+    AString dumpSummary(int &slot, const char *only);
+
+    void setIgnorables(const char **);
+    const char **getIgnorables();
+
+ protected:
+
+    // various comparators
+    // "do these records have same attributes and values in those attrs"
+    // ditto, but watch for "error" fields
+    bool sameAttributes(MediaAnalyticsItem *summ, MediaAnalyticsItem *single, const char **ignoreables);
+    // attributes + from the same app/userid
+    bool sameAttributesId(MediaAnalyticsItem *summ, MediaAnalyticsItem *single, const char **ignoreables);
+
+    static int PropSorter(const void *a, const void *b);
+    void sortProps(MediaAnalyticsItem *item);
+
+ private:
+    const char *mKey;
+    const char **mIgnorables;
+    List<MediaAnalyticsItem *> *mSummaries;
+
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_METRICSSUMMARIZER_H
diff --git a/services/mediaanalytics/MetricsSummarizerCodec.cpp b/services/mediaanalytics/MetricsSummarizerCodec.cpp
new file mode 100644
index 0000000..8c74782
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerCodec.cpp
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "MetricsSummarizerCodec"
+#include <utils/Log.h>
+
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+#include "MetricsSummarizer.h"
+#include "MetricsSummarizerCodec.h"
+
+
+
+
+namespace android {
+
+MetricsSummarizerCodec::MetricsSummarizerCodec(const char *key)
+    : MetricsSummarizer(key)
+{
+    ALOGV("MetricsSummarizerCodec::MetricsSummarizerCodec");
+}
+
+
+} // namespace android
diff --git a/services/mediaanalytics/MetricsSummarizerCodec.h b/services/mediaanalytics/MetricsSummarizerCodec.h
new file mode 100644
index 0000000..c01196f
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerCodec.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_METRICSSUMMARIZERCODEC_H
+#define ANDROID_METRICSSUMMARIZERCODEC_H
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+#include "MetricsSummarizer.h"
+
+
+namespace android {
+
+class MetricsSummarizerCodec : public MetricsSummarizer
+{
+
+ public:
+
+    MetricsSummarizerCodec(const char *key);
+    virtual ~MetricsSummarizerCodec() {};
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_METRICSSUMMARIZERCODEC_H
diff --git a/services/mediaanalytics/MetricsSummarizerExtractor.cpp b/services/mediaanalytics/MetricsSummarizerExtractor.cpp
new file mode 100644
index 0000000..190f87d
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerExtractor.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "MetricsSummarizerExtractor"
+#include <utils/Log.h>
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+#include "MetricsSummarizer.h"
+#include "MetricsSummarizerExtractor.h"
+
+
+
+
+namespace android {
+
+MetricsSummarizerExtractor::MetricsSummarizerExtractor(const char *key)
+    : MetricsSummarizer(key)
+{
+    ALOGV("MetricsSummarizerExtractor::MetricsSummarizerExtractor");
+}
+
+} // namespace android
diff --git a/services/mediaanalytics/MetricsSummarizerExtractor.h b/services/mediaanalytics/MetricsSummarizerExtractor.h
new file mode 100644
index 0000000..eee052b
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerExtractor.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_METRICSSUMMARIZEREXTRACTOR_H
+#define ANDROID_METRICSSUMMARIZEREXTRACTOR_H
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+#include "MetricsSummarizer.h"
+
+
+namespace android {
+
+class MetricsSummarizerExtractor : public MetricsSummarizer
+{
+
+ public:
+
+    MetricsSummarizerExtractor(const char *key);
+    virtual ~MetricsSummarizerExtractor() {};
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_METRICSSUMMARIZEREXTRACTOR_H
diff --git a/services/mediaanalytics/MetricsSummarizerPlayer.cpp b/services/mediaanalytics/MetricsSummarizerPlayer.cpp
new file mode 100644
index 0000000..5162059
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerPlayer.cpp
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "MetricsSummarizerPlayer"
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <inttypes.h>
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+#include "MetricsSummarizer.h"
+#include "MetricsSummarizerPlayer.h"
+
+
+
+
+namespace android {
+
+static const char *player_ignorable[] = {
+    "android.media.mediaplayer.durationMs",
+    "android.media.mediaplayer.playingMs",
+    "android.media.mediaplayer.frames",
+    "android.media.mediaplayer.dropped",
+    0
+};
+
+MetricsSummarizerPlayer::MetricsSummarizerPlayer(const char *key)
+    : MetricsSummarizer(key)
+{
+    ALOGV("MetricsSummarizerPlayer::MetricsSummarizerPlayer");
+    setIgnorables(player_ignorable);
+}
+
+void MetricsSummarizerPlayer::mergeRecord(MediaAnalyticsItem &summation, MediaAnalyticsItem &item) {
+
+    ALOGV("MetricsSummarizerPlayer::mergeRecord()");
+
+    //
+    // we sum time & frames.
+    // be careful about our special "-1" values that indicate 'unknown'
+    // treat those as 0 [basically, not summing them into the totals].
+    int64_t duration = 0;
+    if (item.getInt64("android.media.mediaplayer.durationMs", &duration)) {
+        ALOGV("found durationMs of %" PRId64, duration);
+        summation.addInt64("android.media.mediaplayer.durationMs",duration);
+    }
+    int64_t playing = 0;
+    if (item.getInt64("android.media.mediaplayer.playingMs", &playing))
+        ALOGV("found playingMs of %" PRId64, playing);
+        if (playing >= 0) {
+            summation.addInt64("android.media.mediaplayer.playingMs",playing);
+        }
+    int64_t frames = 0;
+    if (item.getInt64("android.media.mediaplayer.frames", &frames))
+        ALOGV("found framess of %" PRId64, frames);
+        if (frames >= 0) {
+            summation.addInt64("android.media.mediaplayer.frames",frames);
+        }
+    int64_t dropped = 0;
+    if (item.getInt64("android.media.mediaplayer.dropped", &dropped))
+        ALOGV("found dropped of %" PRId64, dropped);
+        if (dropped >= 0) {
+            summation.addInt64("android.media.mediaplayer.dropped",dropped);
+        }
+}
+
+} // namespace android
diff --git a/services/mediaanalytics/MetricsSummarizerPlayer.h b/services/mediaanalytics/MetricsSummarizerPlayer.h
new file mode 100644
index 0000000..ad1bf74
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerPlayer.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_METRICSSUMMARIZERPLAYER_H
+#define ANDROID_METRICSSUMMARIZERPLAYER_H
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+#include "MetricsSummarizer.h"
+
+
+namespace android {
+
+class MetricsSummarizerPlayer : public MetricsSummarizer
+{
+
+ public:
+
+    MetricsSummarizerPlayer(const char *key);
+    virtual ~MetricsSummarizerPlayer() {};
+
+    virtual void mergeRecord(MediaAnalyticsItem &have, MediaAnalyticsItem &incoming);
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_METRICSSUMMARIZERPLAYER_H
diff --git a/services/mediaanalytics/MetricsSummarizerRecorder.cpp b/services/mediaanalytics/MetricsSummarizerRecorder.cpp
new file mode 100644
index 0000000..c2919c3
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerRecorder.cpp
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "MetricsSummarizerRecorder"
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <inttypes.h>
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+#include "MetricsSummarizer.h"
+#include "MetricsSummarizerRecorder.h"
+
+
+
+
+namespace android {
+
+MetricsSummarizerRecorder::MetricsSummarizerRecorder(const char *key)
+    : MetricsSummarizer(key)
+{
+    ALOGV("MetricsSummarizerRecorder::MetricsSummarizerRecorder");
+}
+
+} // namespace android
diff --git a/services/mediaanalytics/MetricsSummarizerRecorder.h b/services/mediaanalytics/MetricsSummarizerRecorder.h
new file mode 100644
index 0000000..963baab
--- /dev/null
+++ b/services/mediaanalytics/MetricsSummarizerRecorder.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_METRICSSUMMARIZERRECORDER_H
+#define ANDROID_METRICSSUMMARIZERRECORDER_H
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+#include "MetricsSummarizer.h"
+
+
+namespace android {
+
+class MetricsSummarizerRecorder : public MetricsSummarizer
+{
+
+ public:
+
+    MetricsSummarizerRecorder(const char *key);
+    virtual ~MetricsSummarizerRecorder() {};
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_METRICSSUMMARIZERRECORDER_H
diff --git a/services/mediaanalytics/main_mediametrics.cpp b/services/mediaanalytics/main_mediametrics.cpp
new file mode 100644
index 0000000..8020a03
--- /dev/null
+++ b/services/mediaanalytics/main_mediametrics.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "mediametrics"
+//#define LOG_NDEBUG 0
+
+#include <binder/IPCThreadState.h>
+#include <binder/ProcessState.h>
+#include <binder/IServiceManager.h>
+#include <utils/Log.h>
+//#include "RegisterExtensions.h"
+
+// from LOCAL_C_INCLUDES
+#include "MediaAnalyticsService.h"
+
+using namespace android;
+
+int main(int argc __unused, char **argv __unused)
+{
+    signal(SIGPIPE, SIG_IGN);
+
+    // to match the service name
+    // we're replacing "/system/bin/mediametrics" with "media.metrics"
+    // we add a ".", but discard the path components: we finish with a shorter string
+    strcpy(argv[0], "media.metrics");
+
+    sp<ProcessState> proc(ProcessState::self());
+    sp<IServiceManager> sm(defaultServiceManager());
+    ALOGI("ServiceManager: %p", sm.get());
+
+    MediaAnalyticsService::instantiate();
+
+    ProcessState::self()->startThreadPool();
+    IPCThreadState::self()->joinThreadPool();
+}
diff --git a/services/mediaanalytics/mediametrics.rc b/services/mediaanalytics/mediametrics.rc
new file mode 100644
index 0000000..1efde5e
--- /dev/null
+++ b/services/mediaanalytics/mediametrics.rc
@@ -0,0 +1,6 @@
+service mediametrics /system/bin/mediametrics
+    class main
+    user media
+    group media
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks /dev/stune/foreground/tasks
diff --git a/services/mediacodec/Android.mk b/services/mediacodec/Android.mk
index a5f0751..8eb4aa0 100644
--- a/services/mediacodec/Android.mk
+++ b/services/mediacodec/Android.mk
@@ -3,7 +3,13 @@
 # service library
 include $(CLEAR_VARS)
 LOCAL_SRC_FILES := MediaCodecService.cpp
-LOCAL_SHARED_LIBRARIES := libmedia libbinder libutils liblog libstagefright_omx
+LOCAL_SHARED_LIBRARIES := \
+    libmedia \
+    libbinder \
+    libgui \
+    libutils \
+    liblog \
+    libstagefright_omx
 LOCAL_C_INCLUDES := \
     $(TOP)/frameworks/av/media/libstagefright \
     $(TOP)/frameworks/native/include/media/openmax
@@ -14,17 +20,48 @@
 
 # service executable
 include $(CLEAR_VARS)
-LOCAL_REQUIRED_MODULES_arm := mediacodec-seccomp.policy
-LOCAL_SRC_FILES := main_codecservice.cpp minijail/minijail.cpp
-LOCAL_SHARED_LIBRARIES := libmedia libmediacodecservice libbinder libutils \
-	liblog libminijail
+LOCAL_REQUIRED_MODULES_arm := mediacodec.policy
+LOCAL_SRC_FILES := main_codecservice.cpp
+LOCAL_SHARED_LIBRARIES := \
+    libmedia \
+    libmediacodecservice \
+    libbinder \
+    libutils \
+    libgui \
+    liblog \
+    libbase \
+    libavservices_minijail \
+    libcutils \
+    libhwbinder \
+    libhidltransport \
+    libstagefright_omx \
+    android.hardware.media.omx@1.0 \
+    android.hidl.memory@1.0
 LOCAL_C_INCLUDES := \
     $(TOP)/frameworks/av/media/libstagefright \
+    $(TOP)/frameworks/av/media/libstagefright/include \
     $(TOP)/frameworks/native/include/media/openmax
-LOCAL_MODULE:= mediacodec
+LOCAL_MODULE := android.hardware.media.omx@1.0-service
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_PROPRIETARY_MODULE := true
 LOCAL_32_BIT_ONLY := true
-LOCAL_INIT_RC := mediacodec.rc
+LOCAL_INIT_RC := android.hardware.media.omx@1.0-service.rc
 include $(BUILD_EXECUTABLE)
 
-include $(call all-makefiles-under, $(LOCAL_PATH))
+# service seccomp policy
+ifeq ($(TARGET_ARCH), $(filter $(TARGET_ARCH), arm arm64))
+include $(CLEAR_VARS)
+LOCAL_MODULE := mediacodec.policy
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/seccomp_policy
+# mediacodec runs in 32-bit combatibility mode. For 64 bit architectures,
+# use the 32 bit policy
+ifdef TARGET_2ND_ARCH
+    LOCAL_SRC_FILES := seccomp_policy/mediacodec-$(TARGET_2ND_ARCH).policy
+else
+    LOCAL_SRC_FILES := seccomp_policy/mediacodec-$(TARGET_ARCH).policy
+endif
+include $(BUILD_PREBUILT)
+endif
 
+include $(call all-makefiles-under, $(LOCAL_PATH))
diff --git a/services/mediacodec/android.hardware.media.omx@1.0-service.rc b/services/mediacodec/android.hardware.media.omx@1.0-service.rc
new file mode 100644
index 0000000..ec51d65
--- /dev/null
+++ b/services/mediacodec/android.hardware.media.omx@1.0-service.rc
@@ -0,0 +1,6 @@
+service mediacodec /vendor/bin/hw/android.hardware.media.omx@1.0-service
+    class main
+    user mediacodec
+    group camera drmrpc mediadrm
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks
diff --git a/services/mediacodec/main_codecservice.cpp b/services/mediacodec/main_codecservice.cpp
index a2868c1..c59944a 100644
--- a/services/mediacodec/main_codecservice.cpp
+++ b/services/mediacodec/main_codecservice.cpp
@@ -15,33 +15,71 @@
 ** limitations under the License.
 */
 
-#define LOG_TAG "mediacodec"
-//#define LOG_NDEBUG 0
-
 #include <fcntl.h>
 #include <sys/prctl.h>
 #include <sys/wait.h>
 #include <binder/IPCThreadState.h>
 #include <binder/ProcessState.h>
 #include <binder/IServiceManager.h>
-#include <utils/Log.h>
+#include <cutils/properties.h>
+
+#include <string>
+
+#include <android-base/logging.h>
 
 // from LOCAL_C_INCLUDES
 #include "MediaCodecService.h"
-#include "minijail/minijail.h"
+#include "minijail.h"
+
+#include <hidl/HidlTransportSupport.h>
+#include <omx/1.0/Omx.h>
+#include <omx/1.0/OmxStore.h>
 
 using namespace android;
 
+// Must match location in Android.mk.
+static const char kSystemSeccompPolicyPath[] =
+        "/system/etc/seccomp_policy/mediacodec.policy";
+static const char kVendorSeccompPolicyPath[] =
+        "/vendor/etc/seccomp_policy/mediacodec.policy";
+
 int main(int argc __unused, char** argv)
 {
-    ALOGI("@@@ mediacodecservice starting");
+    LOG(INFO) << "mediacodecservice starting";
+    bool treble = property_get_bool("persist.media.treble_omx", true);
+    if (treble) {
+      android::ProcessState::initWithDriver("/dev/vndbinder");
+    }
+
     signal(SIGPIPE, SIG_IGN);
-    MiniJail();
+    SetUpMinijail(kSystemSeccompPolicyPath, kVendorSeccompPolicyPath);
 
     strcpy(argv[0], "media.codec");
+
+    ::android::hardware::configureRpcThreadpool(64, false);
     sp<ProcessState> proc(ProcessState::self());
-    sp<IServiceManager> sm = defaultServiceManager();
-    MediaCodecService::instantiate();
+
+    if (treble) {
+        using namespace ::android::hardware::media::omx::V1_0;
+        sp<IOmxStore> omxStore = new implementation::OmxStore();
+        if (omxStore == nullptr) {
+            LOG(ERROR) << "Cannot create IOmxStore HAL service.";
+        } else if (omxStore->registerAsService() != OK) {
+            LOG(ERROR) << "Cannot register IOmxStore HAL service.";
+        }
+        sp<IOmx> omx = new implementation::Omx();
+        if (omx == nullptr) {
+            LOG(ERROR) << "Cannot create IOmx HAL service.";
+        } else if (omx->registerAsService() != OK) {
+            LOG(ERROR) << "Cannot register IOmx HAL service.";
+        } else {
+            LOG(INFO) << "Treble OMX service created.";
+        }
+    } else {
+        MediaCodecService::instantiate();
+        LOG(INFO) << "Non-Treble OMX service created.";
+    }
+
     ProcessState::self()->startThreadPool();
     IPCThreadState::self()->joinThreadPool();
 }
diff --git a/services/mediacodec/mediacodec.rc b/services/mediacodec/mediacodec.rc
deleted file mode 100644
index d78e0a4..0000000
--- a/services/mediacodec/mediacodec.rc
+++ /dev/null
@@ -1,6 +0,0 @@
-service mediacodec /system/bin/mediacodec
-    class main
-    user mediacodec
-    group camera drmrpc mediadrm
-    ioprio rt 4
-    writepid /dev/cpuset/foreground/tasks
diff --git a/services/mediacodec/minijail/Android.mk b/services/mediacodec/minijail/Android.mk
deleted file mode 100644
index d2becb4..0000000
--- a/services/mediacodec/minijail/Android.mk
+++ /dev/null
@@ -1,28 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-
-ifeq ($(TARGET_ARCH), $(filter $(TARGET_ARCH), arm arm64))
-include $(CLEAR_VARS)
-LOCAL_MODULE := mediacodec-seccomp.policy
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/seccomp_policy
-
-# mediacodec runs in 32-bit combatibility mode. For 64 bit architectures,
-# use the 32 bit policy
-ifdef TARGET_2ND_ARCH
-    LOCAL_SRC_FILES := $(LOCAL_PATH)/seccomp_policy/mediacodec-seccomp-$(TARGET_2ND_ARCH).policy
-else
-    LOCAL_SRC_FILES := $(LOCAL_PATH)/seccomp_policy/mediacodec-seccomp-$(TARGET_ARCH).policy
-endif
-
-# allow device specific additions to the syscall whitelist
-ifneq (,$(wildcard $(BOARD_SECCOMP_POLICY)/mediacodec-seccomp.policy))
-    LOCAL_SRC_FILES += $(BOARD_SECCOMP_POLICY)/mediacodec-seccomp.policy
-endif
-
-include $(BUILD_SYSTEM)/base_rules.mk
-
-$(LOCAL_BUILT_MODULE): $(LOCAL_SRC_FILES)
-	@mkdir -p $(dir $@)
-	$(hide) cat > $@ $^
-
-endif
diff --git a/services/mediacodec/minijail/minijail.cpp b/services/mediacodec/minijail/minijail.cpp
deleted file mode 100644
index 72bb1af..0000000
--- a/services/mediacodec/minijail/minijail.cpp
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
-**
-** Copyright 2016, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#include <cutils/log.h>
-#include <libminijail.h>
-
-#include "minijail.h"
-
-namespace android {
-
-/* Must match location in Android.mk */
-static const char kSeccompFilePath[] = "/system/etc/seccomp_policy/mediacodec-seccomp.policy";
-
-int MiniJail()
-{
-    /* no seccomp policy for this architecture */
-    if (access(kSeccompFilePath, R_OK) == -1) {
-        ALOGW("No seccomp filter defined for this architecture.");
-        return 0;
-    }
-
-    struct minijail *jail = minijail_new();
-    if (jail == NULL) {
-        ALOGW("Failed to create minijail.");
-        return -1;
-    }
-
-    minijail_no_new_privs(jail);
-    minijail_log_seccomp_filter_failures(jail);
-    minijail_use_seccomp_filter(jail);
-    minijail_parse_seccomp_filters(jail, kSeccompFilePath);
-    minijail_enter(jail);
-    minijail_destroy(jail);
-    return 0;
-}
-}
diff --git a/services/mediacodec/minijail/minijail.h b/services/mediacodec/minijail/minijail.h
deleted file mode 100644
index ae01470..0000000
--- a/services/mediacodec/minijail/minijail.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
-**
-** Copyright 2016, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-namespace android {
-int MiniJail();
-}
diff --git a/services/mediacodec/minijail/seccomp_policy/mediacodec-seccomp-arm.policy b/services/mediacodec/minijail/seccomp_policy/mediacodec-seccomp-arm.policy
deleted file mode 100644
index 0afaa15..0000000
--- a/services/mediacodec/minijail/seccomp_policy/mediacodec-seccomp-arm.policy
+++ /dev/null
@@ -1,51 +0,0 @@
-# Organized by frequency of systemcall - in descending order for
-# best performance.
-futex: 1
-ioctl: 1
-write: 1
-prctl: 1
-clock_gettime: 1
-getpriority: 1
-read: 1
-close: 1
-writev: 1
-dup: 1
-ppoll: 1
-mmap2: 1
-munmap: 1
-mprotect: 1
-madvise: 1
-openat: 1
-sigaltstack: 1
-clone: 1
-setpriority: 1
-getuid32: 1
-fstat64: 1
-pread64: 1
-faccessat: 1
-readlinkat: 1
-exit: 1
-rt_sigprocmask: 1
-set_tid_address: 1
-restart_syscall: 1
-exit_group: 1
-rt_sigreturn: 1
-pipe2: 1
-gettimeofday: 1
-sched_yield: 1
-nanosleep: 1
-lseek: 1
-sched_get_priority_max: 1
-sched_get_priority_min: 1
-statfs64: 1
-sched_setscheduler: 1
-fstatat64: 1
-ugetrlimit: 1
-
-# for attaching to debuggerd on process crash
-sigaction: 1
-tgkill: 1
-socket: 1
-connect: 1
-fcntl64: 1
-rt_tgsigqueueinfo: 1
diff --git a/services/mediacodec/seccomp_policy/mediacodec-arm.policy b/services/mediacodec/seccomp_policy/mediacodec-arm.policy
new file mode 100644
index 0000000..52658d1
--- /dev/null
+++ b/services/mediacodec/seccomp_policy/mediacodec-arm.policy
@@ -0,0 +1,69 @@
+# Organized by frequency of systemcall - in descending order for
+# best performance.
+futex: 1
+ioctl: 1
+write: 1
+prctl: 1
+clock_gettime: 1
+getpriority: 1
+read: 1
+close: 1
+writev: 1
+dup: 1
+ppoll: 1
+mmap2: 1
+
+# mremap: Ensure |flags| are (MREMAP_MAYMOVE | MREMAP_FIXED) TODO: Once minijail
+# parser support for '<' is in this needs to be modified to also prevent
+# |old_address| and |new_address| from touching the exception vector page, which
+# on ARM is statically loaded at 0xffff 0000. See
+# http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0211h/Babfeega.html
+# for more details.
+mremap: arg3 == 3
+munmap: 1
+mprotect: 1
+madvise: 1
+openat: 1
+sigaltstack: 1
+clone: 1
+setpriority: 1
+getuid32: 1
+fstat64: 1
+fstatfs64: 1
+pread64: 1
+faccessat: 1
+readlinkat: 1
+exit: 1
+rt_sigprocmask: 1
+set_tid_address: 1
+restart_syscall: 1
+exit_group: 1
+rt_sigreturn: 1
+pipe2: 1
+gettimeofday: 1
+sched_yield: 1
+nanosleep: 1
+lseek: 1
+_llseek: 1
+sched_get_priority_max: 1
+sched_get_priority_min: 1
+statfs64: 1
+sched_setscheduler: 1
+fstatat64: 1
+ugetrlimit: 1
+getdents64: 1
+
+# for attaching to debuggerd on process crash
+sigaction: 1
+tgkill: 1
+socket: 1
+connect: 1
+fcntl64: 1
+rt_tgsigqueueinfo: 1
+geteuid32: 1
+getgid32: 1
+getegid32: 1
+getgroups32: 1
+recvmsg: 1
+getpid: 1
+gettid: 1
diff --git a/services/mediadrm/Android.mk b/services/mediadrm/Android.mk
index 8baaf13..fa3a02b 100644
--- a/services/mediadrm/Android.mk
+++ b/services/mediadrm/Android.mk
@@ -16,29 +16,38 @@
 
 include $(CLEAR_VARS)
 
-
 LOCAL_SRC_FILES:= \
+    MediaCasService.cpp \
     MediaDrmService.cpp \
     main_mediadrmserver.cpp
 
 LOCAL_SHARED_LIBRARIES:= \
     libbinder \
-    libcutils \
     liblog \
-    libmedia \
     libmediadrm \
-    libmediaplayerservice \
-    libstagefright \
-    libui \
-    libutils \
-
-LOCAL_C_INCLUDES := \
-    frameworks/av/media/libmediaplayerservice \
+    libutils
+ifneq ($(DISABLE_TREBLE_DRM), true)
+LOCAL_SHARED_LIBRARIES += \
+    libhidlbase \
+    libhidlmemory \
+    android.hidl.base@1.0 \
+    android.hardware.drm@1.0
+endif
 
 LOCAL_CFLAGS += -Wall -Wextra -Werror
+ifeq ($(DISABLE_TREBLE_DRM), true)
+LOCAL_CFLAGS += -DDISABLE_TREBLE_DRM=1
+endif
 
 LOCAL_MODULE:= mediadrmserver
+
+# TODO: Some legacy DRM plugins only support 32-bit. They need to be migrated to
+# 64-bit. (b/18948909) Once all of a device's legacy DRM plugins support 64-bit,
+# that device can turn on TARGET_ENABLE_MEDIADRM_64 to build this service as
+# 64-bit.
+ifneq ($(TARGET_ENABLE_MEDIADRM_64), true)
 LOCAL_32_BIT_ONLY := true
+endif
 
 LOCAL_INIT_RC := mediadrmserver.rc
 
diff --git a/services/mediadrm/FactoryLoader.h b/services/mediadrm/FactoryLoader.h
new file mode 100644
index 0000000..d7f1118
--- /dev/null
+++ b/services/mediadrm/FactoryLoader.h
@@ -0,0 +1,220 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CAS_LOADER_H_
+#define MEDIA_CAS_LOADER_H_
+
+#include <dirent.h>
+#include <dlfcn.h>
+#include <media/SharedLibrary.h>
+#include <utils/KeyedVector.h>
+#include <utils/Mutex.h>
+
+namespace android {
+using namespace std;
+using namespace media;
+using namespace MediaCas;
+
+template <class T>
+class FactoryLoader {
+public:
+    FactoryLoader(const char *name) :
+        mFactory(NULL), mCreateFactoryFuncName(name) {}
+
+    virtual ~FactoryLoader() { closeFactory(); }
+
+    bool findFactoryForScheme(
+            int32_t CA_system_id,
+            sp<SharedLibrary> *library = NULL,
+            T** factory = NULL);
+
+    bool enumeratePlugins(vector<ParcelableCasPluginDescriptor>* results);
+
+private:
+    typedef T*(*CreateFactoryFunc)();
+
+    Mutex mMapLock;
+    T* mFactory;
+    const char *mCreateFactoryFuncName;
+    sp<SharedLibrary> mLibrary;
+    KeyedVector<int32_t, String8> mCASystemIdToLibraryPathMap;
+    KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
+
+    bool loadFactoryForSchemeFromPath(
+            const String8 &path,
+            int32_t CA_system_id,
+            sp<SharedLibrary> *library,
+            T** factory);
+
+    bool queryPluginsFromPath(
+            const String8 &path,
+            vector<ParcelableCasPluginDescriptor>* results);
+
+    bool openFactory(const String8 &path);
+    void closeFactory();
+};
+
+template <class T>
+bool FactoryLoader<T>::findFactoryForScheme(
+        int32_t CA_system_id, sp<SharedLibrary> *library, T** factory) {
+    if (library != NULL) {
+        library->clear();
+    }
+    if (factory != NULL) {
+        *factory = NULL;
+    }
+
+    Mutex::Autolock autoLock(mMapLock);
+
+    // first check cache
+    ssize_t index = mCASystemIdToLibraryPathMap.indexOfKey(CA_system_id);
+    if (index >= 0) {
+        return loadFactoryForSchemeFromPath(
+                mCASystemIdToLibraryPathMap[index],
+                CA_system_id, library, factory);
+    }
+
+    // no luck, have to search
+    String8 dirPath("/system/lib/mediacas");
+    DIR* pDir = opendir(dirPath.string());
+
+    if (pDir == NULL) {
+        ALOGE("Failed to open plugin directory %s", dirPath.string());
+        return false;
+    }
+
+    struct dirent* pEntry;
+    while ((pEntry = readdir(pDir))) {
+        String8 pluginPath = dirPath + "/" + pEntry->d_name;
+        if (pluginPath.getPathExtension() == ".so") {
+            if (loadFactoryForSchemeFromPath(
+                    pluginPath, CA_system_id, library, factory)) {
+                mCASystemIdToLibraryPathMap.add(CA_system_id, pluginPath);
+                closedir(pDir);
+
+                return true;
+            }
+        }
+    }
+
+    closedir(pDir);
+
+    ALOGE("Failed to find plugin");
+    return false;
+}
+
+template <class T>
+bool FactoryLoader<T>::enumeratePlugins(
+        vector<ParcelableCasPluginDescriptor>* results) {
+    ALOGI("enumeratePlugins");
+
+    results->clear();
+
+    String8 dirPath("/system/lib/mediacas");
+    DIR* pDir = opendir(dirPath.string());
+
+    if (pDir == NULL) {
+        ALOGE("Failed to open plugin directory %s", dirPath.string());
+        return false;
+    }
+
+    Mutex::Autolock autoLock(mMapLock);
+
+    struct dirent* pEntry;
+    while ((pEntry = readdir(pDir))) {
+        String8 pluginPath = dirPath + "/" + pEntry->d_name;
+        if (pluginPath.getPathExtension() == ".so") {
+            queryPluginsFromPath(pluginPath, results);
+        }
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::loadFactoryForSchemeFromPath(
+        const String8 &path, int32_t CA_system_id,
+        sp<SharedLibrary> *library, T** factory) {
+    closeFactory();
+
+    if (!openFactory(path) || !mFactory->isSystemIdSupported(CA_system_id)) {
+        closeFactory();
+        return false;
+    }
+
+    if (library != NULL) {
+        *library = mLibrary;
+    }
+    if (factory != NULL) {
+        *factory = mFactory;
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::queryPluginsFromPath(
+        const String8 &path, vector<ParcelableCasPluginDescriptor>* results) {
+    closeFactory();
+
+    vector<CasPluginDescriptor> descriptors;
+    if (!openFactory(path) || mFactory->queryPlugins(&descriptors) != OK) {
+        closeFactory();
+        return false;
+    }
+
+    for (auto it = descriptors.begin(); it != descriptors.end(); it++) {
+        results->push_back(ParcelableCasPluginDescriptor(
+                it->CA_system_id, it->name));
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::openFactory(const String8 &path) {
+    // get strong pointer to open shared library
+    ssize_t index = mLibraryPathToOpenLibraryMap.indexOfKey(path);
+    if (index >= 0) {
+        mLibrary = mLibraryPathToOpenLibraryMap[index].promote();
+    } else {
+        index = mLibraryPathToOpenLibraryMap.add(path, NULL);
+    }
+
+    if (!mLibrary.get()) {
+        mLibrary = new SharedLibrary(path);
+        if (!*mLibrary) {
+            return false;
+        }
+
+        mLibraryPathToOpenLibraryMap.replaceValueAt(index, mLibrary);
+    }
+
+    CreateFactoryFunc createFactory =
+        (CreateFactoryFunc)mLibrary->lookup(mCreateFactoryFuncName);
+    if (createFactory == NULL || (mFactory = createFactory()) == NULL) {
+        return false;
+    }
+    return true;
+}
+
+template <class T>
+void FactoryLoader<T>::closeFactory() {
+    delete mFactory;
+    mFactory = NULL;
+    mLibrary.clear();
+}
+
+} // namespace android
+
+#endif // MEDIA_CAS_LOADER_H_
diff --git a/services/mediadrm/MediaCasService.cpp b/services/mediadrm/MediaCasService.cpp
new file mode 100644
index 0000000..c111283
--- /dev/null
+++ b/services/mediadrm/MediaCasService.cpp
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaCasService"
+
+#include <binder/IServiceManager.h>
+#include <media/cas/CasAPI.h>
+#include <media/cas/DescramblerAPI.h>
+#include <media/CasImpl.h>
+#include <media/DescramblerImpl.h>
+#include <utils/Log.h>
+#include <utils/List.h>
+#include "MediaCasService.h"
+#include <android/media/ICasListener.h>
+
+namespace android {
+
+//static
+void MediaCasService::instantiate() {
+    defaultServiceManager()->addService(
+            String16("media.cas"), new MediaCasService());
+}
+
+MediaCasService::MediaCasService() :
+    mCasLoader(new FactoryLoader<CasFactory>("createCasFactory")),
+    mDescramblerLoader(new FactoryLoader<DescramblerFactory>(
+            "createDescramblerFactory")) {
+}
+
+MediaCasService::~MediaCasService() {
+    delete mCasLoader;
+    delete mDescramblerLoader;
+}
+
+Status MediaCasService::enumeratePlugins(
+        vector<ParcelableCasPluginDescriptor>* results) {
+    ALOGV("enumeratePlugins");
+
+    mCasLoader->enumeratePlugins(results);
+
+    return Status::ok();
+}
+
+Status MediaCasService::isSystemIdSupported(
+        int32_t CA_system_id, bool* result) {
+    ALOGV("isSystemIdSupported: CA_system_id=%d", CA_system_id);
+
+    *result = mCasLoader->findFactoryForScheme(CA_system_id);
+
+    return Status::ok();
+}
+
+Status MediaCasService::createPlugin(
+        int32_t CA_system_id,
+        const sp<ICasListener> &listener,
+        sp<ICas>* result) {
+    ALOGV("createPlugin: CA_system_id=%d", CA_system_id);
+
+    result->clear();
+
+    CasFactory *factory;
+    sp<SharedLibrary> library;
+    if (mCasLoader->findFactoryForScheme(CA_system_id, &library, &factory)) {
+        CasPlugin *plugin = NULL;
+        sp<CasImpl> casImpl = new CasImpl(listener);
+        if (factory->createPlugin(CA_system_id, (uint64_t)casImpl.get(),
+                &CasImpl::OnEvent, &plugin) == OK && plugin != NULL) {
+            casImpl->init(library, plugin);
+            *result = casImpl;
+        }
+    }
+
+    return Status::ok();
+}
+
+Status MediaCasService::isDescramblerSupported(
+        int32_t CA_system_id, bool* result) {
+    ALOGV("isDescramblerSupported: CA_system_id=%d", CA_system_id);
+
+    *result = mDescramblerLoader->findFactoryForScheme(CA_system_id);
+
+    return Status::ok();
+}
+
+Status MediaCasService::createDescrambler(
+        int32_t CA_system_id, sp<IDescrambler>* result) {
+    ALOGV("createDescrambler: CA_system_id=%d", CA_system_id);
+
+    result->clear();
+
+    DescramblerFactory *factory;
+    sp<SharedLibrary> library;
+    if (mDescramblerLoader->findFactoryForScheme(
+            CA_system_id, &library, &factory)) {
+        DescramblerPlugin *plugin = NULL;
+        if (factory->createPlugin(CA_system_id, &plugin) == OK
+                && plugin != NULL) {
+            *result = new DescramblerImpl(library, plugin);
+        }
+    }
+
+    return Status::ok();
+}
+
+} // namespace android
diff --git a/services/mediadrm/MediaCasService.h b/services/mediadrm/MediaCasService.h
new file mode 100644
index 0000000..cb828f2
--- /dev/null
+++ b/services/mediadrm/MediaCasService.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CAS_SERVICE_H_
+#define MEDIA_CAS_SERVICE_H_
+
+#include <android/media/BnMediaCasService.h>
+
+#include "FactoryLoader.h"
+
+namespace android {
+using binder::Status;
+struct CasFactory;
+struct DescramblerFactory;
+
+class MediaCasService : public BnMediaCasService {
+public:
+    static void instantiate();
+
+    virtual Status enumeratePlugins(
+            vector<ParcelableCasPluginDescriptor>* results) override;
+
+    virtual Status isSystemIdSupported(
+            int32_t CA_system_id, bool* result) override;
+
+    virtual Status createPlugin(
+            int32_t CA_system_id,
+            const sp<ICasListener> &listener,
+            sp<ICas>* result) override;
+
+    virtual Status isDescramblerSupported(
+            int32_t CA_system_id, bool* result) override;
+
+    virtual Status createDescrambler(
+            int32_t CA_system_id, sp<IDescrambler>* result) override;
+
+private:
+    FactoryLoader<CasFactory> *mCasLoader;
+    FactoryLoader<DescramblerFactory> *mDescramblerLoader;
+
+    MediaCasService();
+    virtual ~MediaCasService();
+};
+
+} // namespace android
+
+#endif // MEDIA_CAS_SERVICE_H_
diff --git a/services/mediadrm/MediaDrmService.cpp b/services/mediadrm/MediaDrmService.cpp
index 331c568..b9ec347 100644
--- a/services/mediadrm/MediaDrmService.cpp
+++ b/services/mediadrm/MediaDrmService.cpp
@@ -21,11 +21,16 @@
 #define LOG_TAG "MediaDrmService"
 
 #include "MediaDrmService.h"
-
 #include <binder/IServiceManager.h>
+#include <utils/Log.h>
+
+#ifdef DISABLE_TREBLE_DRM
 #include <media/Crypto.h>
 #include <media/Drm.h>
-#include <utils/Log.h>
+#else
+#include <media/CryptoHal.h>
+#include <media/DrmHal.h>
+#endif
 
 namespace android {
 
@@ -35,11 +40,19 @@
 }
 
 sp<ICrypto> MediaDrmService::makeCrypto() {
+#ifdef DISABLE_TREBLE_DRM
     return new Crypto;
+#else
+    return new CryptoHal;
+#endif
 }
 
 sp<IDrm> MediaDrmService::makeDrm() {
+#ifdef DISABLE_TREBLE_DRM
     return new Drm;
+#else
+    return new DrmHal;
+#endif
 }
 
 } // namespace android
diff --git a/services/mediadrm/main_mediadrmserver.cpp b/services/mediadrm/main_mediadrmserver.cpp
index b767b8c..b685ae0 100644
--- a/services/mediadrm/main_mediadrmserver.cpp
+++ b/services/mediadrm/main_mediadrmserver.cpp
@@ -27,6 +27,7 @@
 #include <cutils/properties.h>
 #include <utils/Log.h>
 #include "MediaDrmService.h"
+#include "MediaCasService.h"
 
 using namespace android;
 
@@ -38,6 +39,7 @@
     sp<IServiceManager> sm = defaultServiceManager();
     ALOGI("ServiceManager: %p", sm.get());
     MediaDrmService::instantiate();
+    MediaCasService::instantiate();
     ProcessState::self()->startThreadPool();
     IPCThreadState::self()->joinThreadPool();
 }
diff --git a/services/mediadrm/tests/Android.mk b/services/mediadrm/tests/Android.mk
index 8cbf782..e2f7399 100644
--- a/services/mediadrm/tests/Android.mk
+++ b/services/mediadrm/tests/Android.mk
@@ -19,7 +19,6 @@
 	frameworks/av/media/libmediaplayerservice \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_32_BIT_ONLY := true
 
diff --git a/services/mediaextractor/Android.mk b/services/mediaextractor/Android.mk
index a9a2d3c..1ebb7ff 100644
--- a/services/mediaextractor/Android.mk
+++ b/services/mediaextractor/Android.mk
@@ -5,21 +5,30 @@
 LOCAL_SRC_FILES := MediaExtractorService.cpp
 LOCAL_SHARED_LIBRARIES := libmedia libstagefright libbinder libutils liblog
 LOCAL_MODULE:= libmediaextractorservice
-LOCAL_32_BIT_ONLY := true
 include $(BUILD_SHARED_LIBRARY)
 
 
 # service executable
 include $(CLEAR_VARS)
-LOCAL_REQUIRED_MODULES_arm := mediaextractor-seccomp.policy
-LOCAL_REQUIRED_MODULES_x86 := mediaextractor-seccomp.policy
-LOCAL_SRC_FILES := main_extractorservice.cpp minijail/minijail.cpp
-LOCAL_SHARED_LIBRARIES := libmedia libmediaextractorservice libbinder libutils liblog libicuuc libminijail
+# seccomp filters are defined for the following architectures:
+LOCAL_REQUIRED_MODULES_arm := mediaextractor.policy
+LOCAL_REQUIRED_MODULES_arm64 := mediaextractor.policy
+LOCAL_REQUIRED_MODULES_x86 := mediaextractor.policy
+LOCAL_SRC_FILES := main_extractorservice.cpp
+LOCAL_SHARED_LIBRARIES := libmedia libmediaextractorservice libbinder libutils \
+    liblog libbase libicuuc libavservices_minijail
 LOCAL_STATIC_LIBRARIES := libicuandroid_utils
 LOCAL_MODULE:= mediaextractor
-LOCAL_32_BIT_ONLY := true
 LOCAL_INIT_RC := mediaextractor.rc
 LOCAL_C_INCLUDES := frameworks/av/media/libmedia
 include $(BUILD_EXECUTABLE)
 
-include $(call all-makefiles-under, $(LOCAL_PATH))
+# service seccomp filter
+ifeq ($(TARGET_ARCH), $(filter $(TARGET_ARCH), arm arm64 x86))
+include $(CLEAR_VARS)
+LOCAL_MODULE := mediaextractor.policy
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/seccomp_policy
+LOCAL_SRC_FILES := seccomp_policy/mediaextractor-$(TARGET_ARCH).policy
+include $(BUILD_PREBUILT)
+endif
diff --git a/services/mediaextractor/MediaExtractorService.cpp b/services/mediaextractor/MediaExtractorService.cpp
index 4a80166..08cbef6 100644
--- a/services/mediaextractor/MediaExtractorService.cpp
+++ b/services/mediaextractor/MediaExtractorService.cpp
@@ -22,6 +22,7 @@
 
 #include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaExtractor.h>
+#include <media/stagefright/RemoteDataSource.h>
 #include "MediaExtractorService.h"
 
 namespace android {
@@ -45,6 +46,12 @@
     return ret;
 }
 
+sp<IDataSource> MediaExtractorService::makeIDataSource(int fd, int64_t offset, int64_t length)
+{
+    sp<DataSource> source = DataSource::CreateFromFd(fd, offset, length);
+    return source.get() != nullptr ? source->asIDataSource() : nullptr;
+}
+
 status_t MediaExtractorService::dump(int fd, const Vector<String16>& args) {
     return dumpExtractors(fd, args);
 }
diff --git a/services/mediaextractor/MediaExtractorService.h b/services/mediaextractor/MediaExtractorService.h
index 078af0c..9df3ecd 100644
--- a/services/mediaextractor/MediaExtractorService.h
+++ b/services/mediaextractor/MediaExtractorService.h
@@ -34,6 +34,9 @@
     static const char*  getServiceName() { return "media.extractor"; }
 
     virtual sp<IMediaExtractor> makeExtractor(const sp<IDataSource> &source, const char *mime);
+
+    virtual sp<IDataSource> makeIDataSource(int fd, int64_t offset, int64_t length);
+
     virtual status_t    dump(int fd, const Vector<String16>& args);
 
     virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
diff --git a/services/mediaextractor/main_extractorservice.cpp b/services/mediaextractor/main_extractorservice.cpp
index 245489e..6a5320d 100644
--- a/services/mediaextractor/main_extractorservice.cpp
+++ b/services/mediaextractor/main_extractorservice.cpp
@@ -15,25 +15,31 @@
 ** limitations under the License.
 */
 
-#define LOG_TAG "mediaextractor"
-//#define LOG_NDEBUG 0
-
 #include <fcntl.h>
 #include <sys/prctl.h>
 #include <sys/wait.h>
 #include <binder/IPCThreadState.h>
 #include <binder/ProcessState.h>
 #include <binder/IServiceManager.h>
-#include <utils/Log.h>
+
+#include <string>
+
+#include <android-base/logging.h>
+#include <utils/misc.h>
 
 // from LOCAL_C_INCLUDES
 #include "IcuUtils.h"
 #include "MediaExtractorService.h"
 #include "MediaUtils.h"
-#include "minijail/minijail.h"
+#include "minijail.h"
 
 using namespace android;
 
+static const char kSystemSeccompPolicyPath[] =
+        "/system/etc/seccomp_policy/mediaextractor.policy";
+static const char kVendorSeccompPolicyPath[] =
+        "/vendor/etc/seccomp_policy/mediaextractor.policy";
+
 int main(int argc __unused, char** argv)
 {
     limitProcessMemory(
@@ -42,7 +48,14 @@
         20 /* upper limit as percentage of physical RAM */);
 
     signal(SIGPIPE, SIG_IGN);
-    MiniJail();
+
+    //b/62255959: this forces libutis.so to dlopen vendor version of libutils.so
+    //before minijail is on. This is dirty but required since some syscalls such
+    //as pread64 are used by linker but aren't allowed in the minijail. By
+    //calling the function before entering minijail, we can force dlopen.
+    android::report_sysprop_change();
+
+    SetUpMinijail(kSystemSeccompPolicyPath, kVendorSeccompPolicyPath);
 
     InitializeIcuOrDie();
 
diff --git a/services/mediaextractor/minijail/Android.mk b/services/mediaextractor/minijail/Android.mk
deleted file mode 100644
index 79c5505..0000000
--- a/services/mediaextractor/minijail/Android.mk
+++ /dev/null
@@ -1,28 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-
-ifeq ($(TARGET_ARCH), $(filter $(TARGET_ARCH), arm arm64 x86 x86_64))
-include $(CLEAR_VARS)
-LOCAL_MODULE := mediaextractor-seccomp.policy
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/seccomp_policy
-
-# mediaextractor runs in 32-bit combatibility mode. For 64 bit architectures,
-# use the 32 bit policy
-ifdef TARGET_2ND_ARCH
-    LOCAL_SRC_FILES := $(LOCAL_PATH)/seccomp_policy/mediaextractor-seccomp-$(TARGET_2ND_ARCH).policy
-else
-    LOCAL_SRC_FILES := $(LOCAL_PATH)/seccomp_policy/mediaextractor-seccomp-$(TARGET_ARCH).policy
-endif
-
-# allow device specific additions to the syscall whitelist
-ifneq (,$(wildcard $(BOARD_SECCOMP_POLICY)/mediaextractor-seccomp.policy))
-    LOCAL_SRC_FILES += $(BOARD_SECCOMP_POLICY)/mediaextractor-seccomp.policy
-endif
-
-include $(BUILD_SYSTEM)/base_rules.mk
-
-$(LOCAL_BUILT_MODULE): $(LOCAL_SRC_FILES)
-	@mkdir -p $(dir $@)
-	$(hide) cat > $@ $^
-
-endif
diff --git a/services/mediaextractor/minijail/minijail.cpp b/services/mediaextractor/minijail/minijail.cpp
deleted file mode 100644
index 421a1e0..0000000
--- a/services/mediaextractor/minijail/minijail.cpp
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
-**
-** Copyright 2015, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#include <cutils/log.h>
-#include <libminijail.h>
-
-#include "minijail.h"
-
-namespace android {
-
-/* Must match location in Android.mk */
-static const char kSeccompFilePath[] = "/system/etc/seccomp_policy/mediaextractor-seccomp.policy";
-
-int MiniJail()
-{
-    /* no seccomp policy for this architecture */
-    if (access(kSeccompFilePath, R_OK) == -1) {
-        ALOGW("No seccomp filter defined for this architecture.");
-        return 0;
-    }
-
-    struct minijail *jail = minijail_new();
-    if (jail == NULL) {
-        ALOGW("Failed to create minijail.");
-        return -1;
-    }
-
-    minijail_no_new_privs(jail);
-    minijail_log_seccomp_filter_failures(jail);
-    minijail_use_seccomp_filter(jail);
-    minijail_parse_seccomp_filters(jail, kSeccompFilePath);
-    minijail_enter(jail);
-    minijail_destroy(jail);
-    return 0;
-}
-}
diff --git a/services/mediaextractor/minijail/minijail.h b/services/mediaextractor/minijail/minijail.h
deleted file mode 100644
index 6ea4487..0000000
--- a/services/mediaextractor/minijail/minijail.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
-**
-** Copyright 2015, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-namespace android {
-int MiniJail();
-}
diff --git a/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-arm.policy b/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-arm.policy
deleted file mode 100644
index 165694c..0000000
--- a/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-arm.policy
+++ /dev/null
@@ -1,47 +0,0 @@
-# Organized by frequency of systemcall - in descending order for
-# best performance.
-ioctl: 1
-futex: 1
-prctl: 1
-write: 1
-getpriority: 1
-mmap2: 1
-close: 1
-munmap: 1
-dup: 1
-mprotect: 1
-getuid32: 1
-setpriority: 1
-sigaltstack: 1
-openat: 1
-clone: 1
-read: 1
-clock_gettime: 1
-lseek: 1
-writev: 1
-fstatat64: 1
-fstat64: 1
-restart_syscall: 1
-exit: 1
-exit_group: 1
-rt_sigreturn: 1
-faccessat: 1
-madvise: 1
-brk: 1
-sched_setscheduler: 1
-gettid: 1
-rt_sigprocmask: 1
-sched_yield: 1
-ugetrlimit: 1
-geteuid32: 1
-getgid32: 1
-getegid32: 1
-getgroups32: 1
-
-# for attaching to debuggerd on process crash
-sigaction: 1
-tgkill: 1
-socket: 1
-connect: 1
-fcntl64: 1
-rt_tgsigqueueinfo: 1
diff --git a/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-x86.policy b/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-x86.policy
deleted file mode 100644
index 67976ff..0000000
--- a/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-x86.policy
+++ /dev/null
@@ -1,45 +0,0 @@
-# Organized by frequency of systemcall - in descending order for
-# best performance.
-ioctl: 1
-futex: 1
-prctl: 1
-write: 1
-getpriority: 1
-close: 1
-dup: 1
-munmap: 1
-mmap2: 1
-madvise: 1
-openat: 1
-clock_gettime: 1
-writev: 1
-brk: 1
-mprotect: 1
-read: 1
-lseek: 1
-getuid32: 1
-clone: 1
-setpriority: 1
-sigaltstack: 1
-fstatat64: 1
-fstat64: 1
-restart_syscall: 1
-exit: 1
-exit_group: 1
-rt_sigreturn: 1
-faccessat: 1
-sched_setscheduler: 1
-ugetrlimit: 1
-getrlimit: 1
-geteuid32: 1
-getgid32: 1
-getegid32: 1
-getgroups32: 1
-
-# for attaching to debuggerd on process crash
-socketcall: 1
-sigaction: 1
-tgkill: 1
-rt_sigprocmask: 1
-fcntl64: 1
-rt_tgsigqueueinfo: 1
diff --git a/services/mediaextractor/seccomp_policy/mediaextractor-arm.policy b/services/mediaextractor/seccomp_policy/mediaextractor-arm.policy
new file mode 100644
index 0000000..23d349d
--- /dev/null
+++ b/services/mediaextractor/seccomp_policy/mediaextractor-arm.policy
@@ -0,0 +1,63 @@
+# Organized by frequency of systemcall - in descending order for
+# best performance.
+ioctl: 1
+futex: 1
+prctl: 1
+write: 1
+getpriority: 1
+mmap2: 1
+close: 1
+munmap: 1
+dup: 1
+mprotect: 1
+getuid32: 1
+setpriority: 1
+sigaltstack: 1
+openat: 1
+clone: 1
+read: 1
+clock_gettime: 1
+lseek: 1
+writev: 1
+fstatat64: 1
+fstatfs64: 1
+fstat64: 1
+restart_syscall: 1
+exit: 1
+exit_group: 1
+rt_sigreturn: 1
+faccessat: 1
+madvise: 1
+brk: 1
+sched_setscheduler: 1
+gettid: 1
+rt_sigprocmask: 1
+sched_yield: 1
+ugetrlimit: 1
+geteuid32: 1
+getgid32: 1
+getegid32: 1
+getgroups32: 1
+nanosleep: 1
+
+# for FileSource
+readlinkat: 1
+_llseek: 1
+
+# for attaching to debuggerd on process crash
+sigaction: 1
+tgkill: 1
+socket: 1
+connect: 1
+recvmsg: 1
+fcntl64: 1
+rt_tgsigqueueinfo: 1
+geteuid32: 1
+getgid32: 1
+getegid32: 1
+getgroups32: 1
+getdents64: 1
+pipe2: 1
+ppoll: 1
+getpid: 1
+gettid: 1
diff --git a/services/mediaextractor/seccomp_policy/mediaextractor-arm64.policy b/services/mediaextractor/seccomp_policy/mediaextractor-arm64.policy
new file mode 100644
index 0000000..42e0d75
--- /dev/null
+++ b/services/mediaextractor/seccomp_policy/mediaextractor-arm64.policy
@@ -0,0 +1,54 @@
+# Organized by frequency of systemcall - in descending order for
+# best performance.
+ioctl: 1
+futex: 1
+prctl: 1
+write: 1
+getpriority: 1
+close: 1
+dup: 1
+mmap: 1
+munmap: 1
+openat: 1
+mprotect: 1
+madvise: 1
+getuid: 1
+fstat: 1
+fstatfs: 1
+read: 1
+setpriority: 1
+sigaltstack: 1
+clone: 1
+lseek: 1
+newfstatat: 1
+faccessat: 1
+restart_syscall: 1
+exit: 1
+exit_group: 1
+rt_sigreturn: 1
+getrlimit: 1
+nanosleep: 1
+
+# for FileSource
+readlinkat: 1
+_llseek: 1
+
+# for attaching to debuggerd on process crash
+tgkill: 1
+rt_sigprocmask: 1
+rt_sigaction: 1
+# socket: arg0 == AF_LOCAL
+socket: arg0 == 1
+connect: 1
+recvmsg: 1
+rt_tgsigqueueinfo: 1
+writev: 1
+geteuid: 1
+getgid: 1
+getegid: 1
+getgroups: 1
+getdents64: 1
+pipe2: 1
+ppoll: 1
+getpid: 1
+gettid: 1
diff --git a/services/mediaextractor/seccomp_policy/mediaextractor-x86.policy b/services/mediaextractor/seccomp_policy/mediaextractor-x86.policy
new file mode 100644
index 0000000..76403f2
--- /dev/null
+++ b/services/mediaextractor/seccomp_policy/mediaextractor-x86.policy
@@ -0,0 +1,64 @@
+# Organized by frequency of systemcall - in descending order for
+# best performance.
+ioctl: 1
+futex: 1
+prctl: 1
+write: 1
+getpriority: 1
+close: 1
+dup: 1
+munmap: 1
+mmap2: 1
+madvise: 1
+openat: 1
+clock_gettime: 1
+writev: 1
+brk: 1
+mprotect: 1
+read: 1
+lseek: 1
+getuid32: 1
+clone: 1
+setpriority: 1
+sigaltstack: 1
+fstatat64: 1
+fstatfs64: 1
+fstat64: 1
+restart_syscall: 1
+exit: 1
+exit_group: 1
+rt_sigreturn: 1
+faccessat: 1
+sched_setscheduler: 1
+ugetrlimit: 1
+getrlimit: 1
+geteuid32: 1
+getgid32: 1
+getegid32: 1
+getgroups32: 1
+nanosleep: 1
+
+# for FileSource
+readlinkat: 1
+_llseek: 1
+
+# for attaching to debuggerd on process crash
+socketcall: 1
+sigaction: 1
+tgkill: 1
+rt_sigprocmask: 1
+fcntl64: 1
+rt_tgsigqueueinfo: 1
+geteuid32: 1
+getgid32: 1
+getegid32: 1
+getgroups32: 1
+getdents64: 1
+pipe2: 1
+ppoll: 1
+
+# Required by AddressSanitizer
+gettid: 1
+sched_yield: 1
+getpid: 1
+gettid: 1
diff --git a/services/medialog/Android.mk b/services/medialog/Android.mk
index 88f98cf..423b186 100644
--- a/services/medialog/Android.mk
+++ b/services/medialog/Android.mk
@@ -2,9 +2,9 @@
 
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES := MediaLogService.cpp
+LOCAL_SRC_FILES := MediaLogService.cpp IMediaLogService.cpp
 
-LOCAL_SHARED_LIBRARIES := libmedia libbinder libutils liblog libnbaio
+LOCAL_SHARED_LIBRARIES := libbinder libutils liblog libnbaio libaudioutils
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
 
diff --git a/services/medialog/IMediaLogService.cpp b/services/medialog/IMediaLogService.cpp
new file mode 100644
index 0000000..0e9b01e
--- /dev/null
+++ b/services/medialog/IMediaLogService.cpp
@@ -0,0 +1,108 @@
+/*
+**
+** Copyright 2007, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#define LOG_TAG "IMediaLogService"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <binder/Parcel.h>
+#include <media/IMediaLogService.h>
+
+namespace android {
+
+enum {
+    REGISTER_WRITER = IBinder::FIRST_CALL_TRANSACTION,
+    UNREGISTER_WRITER,
+    REQUEST_MERGE_WAKEUP,
+};
+
+class BpMediaLogService : public BpInterface<IMediaLogService>
+{
+public:
+    explicit BpMediaLogService(const sp<IBinder>& impl)
+        : BpInterface<IMediaLogService>(impl)
+    {
+    }
+
+    virtual void    registerWriter(const sp<IMemory>& shared, size_t size, const char *name) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaLogService::getInterfaceDescriptor());
+        data.writeStrongBinder(IInterface::asBinder(shared));
+        data.writeInt64((int64_t) size);
+        data.writeCString(name);
+        status_t status __unused = remote()->transact(REGISTER_WRITER, data, &reply);
+        // FIXME ignores status
+    }
+
+    virtual void    unregisterWriter(const sp<IMemory>& shared) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaLogService::getInterfaceDescriptor());
+        data.writeStrongBinder(IInterface::asBinder(shared));
+        status_t status __unused = remote()->transact(UNREGISTER_WRITER, data, &reply);
+        // FIXME ignores status
+    }
+
+    virtual void    requestMergeWakeup() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaLogService::getInterfaceDescriptor());
+        status_t status __unused = remote()->transact(REQUEST_MERGE_WAKEUP, data, &reply);
+        // FIXME ignores status
+    }
+
+};
+
+IMPLEMENT_META_INTERFACE(MediaLogService, "android.media.IMediaLogService");
+
+// ----------------------------------------------------------------------
+
+status_t BnMediaLogService::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+
+        case REGISTER_WRITER: {
+            CHECK_INTERFACE(IMediaLogService, data, reply);
+            sp<IMemory> shared = interface_cast<IMemory>(data.readStrongBinder());
+            size_t size = (size_t) data.readInt64();
+            const char *name = data.readCString();
+            registerWriter(shared, size, name);
+            return NO_ERROR;
+        }
+
+        case UNREGISTER_WRITER: {
+            CHECK_INTERFACE(IMediaLogService, data, reply);
+            sp<IMemory> shared = interface_cast<IMemory>(data.readStrongBinder());
+            unregisterWriter(shared);
+            return NO_ERROR;
+        }
+
+        case REQUEST_MERGE_WAKEUP: {
+            CHECK_INTERFACE(IMediaLogService, data, reply);
+            requestMergeWakeup();
+            return NO_ERROR;
+        }
+
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/services/medialog/MediaLogService.cpp b/services/medialog/MediaLogService.cpp
index f85aa13..aaf1018 100644
--- a/services/medialog/MediaLogService.cpp
+++ b/services/medialog/MediaLogService.cpp
@@ -26,7 +26,24 @@
 
 namespace android {
 
-static const char kDeadlockedString[] = "MediaLogService may be deadlocked\n";
+// static const char kDeadlockedString[] = "MediaLogService may be deadlocked\n";
+MediaLogService::MediaLogService() :
+    BnMediaLogService(),
+    mMergerShared((NBLog::Shared*) malloc(NBLog::Timeline::sharedSize(kMergeBufferSize))),
+    mMerger(mMergerShared, kMergeBufferSize),
+    mMergeReader(mMergerShared, kMergeBufferSize, mMerger),
+    mMergeThread(new NBLog::MergeThread(mMerger))
+{
+    mMergeThread->run("MergeThread");
+}
+
+MediaLogService::~MediaLogService()
+{
+    mMergeThread->requestExit();
+    mMergeThread->setTimeoutUs(0);
+    mMergeThread->join();
+    free(mMergerShared);
+}
 
 void MediaLogService::registerWriter(const sp<IMemory>& shared, size_t size, const char *name)
 {
@@ -35,10 +52,11 @@
             shared->size() < NBLog::Timeline::sharedSize(size)) {
         return;
     }
-    sp<NBLog::Reader> reader(new NBLog::Reader(size, shared));
-    NamedReader namedReader(reader, name);
+    sp<NBLog::Reader> reader(new NBLog::Reader(shared, size));
+    NBLog::NamedReader namedReader(reader, name);
     Mutex::Autolock _l(mLock);
     mNamedReaders.add(namedReader);
+    mMerger.addReader(namedReader);
 }
 
 void MediaLogService::unregisterWriter(const sp<IMemory>& shared)
@@ -81,7 +99,8 @@
         return NO_ERROR;
     }
 
-    Vector<NamedReader> namedReaders;
+#if 0
+    Vector<NBLog::NamedReader> namedReaders;
     {
         bool locked = dumpTryLock(mLock);
 
@@ -95,19 +114,22 @@
             }
             return NO_ERROR;
         }
-        namedReaders = mNamedReaders;
+            // namedReaders = mNamedReaders;
+            // for (size_t i = 0; i < namedReaders.size(); i++) {
+            //     const NBLog::NamedReader& namedReader = namedReaders[i];
+            //     if (fd >= 0) {
+            //         dprintf(fd, "\n%s:\n", namedReader.name());
+            //     } else {
+            //         ALOGI("%s:", namedReader.name());
+            //     }
+            //     namedReader.reader()->dump(fd, 0 /*indent*/);
+            // }
+
         mLock.unlock();
     }
-
-    for (size_t i = 0; i < namedReaders.size(); i++) {
-        const NamedReader& namedReader = namedReaders[i];
-        if (fd >= 0) {
-            dprintf(fd, "\n%s:\n", namedReader.name());
-        } else {
-            ALOGI("%s:", namedReader.name());
-        }
-        namedReader.reader()->dump(fd, 0 /*indent*/);
-    }
+#endif
+    // FIXME request merge to make sure log is up to date
+    mMergeReader.dump(fd);
     return NO_ERROR;
 }
 
@@ -117,4 +139,8 @@
     return BnMediaLogService::onTransact(code, data, reply, flags);
 }
 
+void MediaLogService::requestMergeWakeup() {
+    mMergeThread->wakeup();
+}
+
 }   // namespace android
diff --git a/services/medialog/MediaLogService.h b/services/medialog/MediaLogService.h
index c9bf2eb..c6b99f1 100644
--- a/services/medialog/MediaLogService.h
+++ b/services/medialog/MediaLogService.h
@@ -27,8 +27,8 @@
 {
     friend class BinderService<MediaLogService>;    // for MediaLogService()
 public:
-    MediaLogService() : BnMediaLogService() { }
-    virtual ~MediaLogService() { }
+    MediaLogService();
+    virtual ~MediaLogService() override;
     virtual void onFirstRef() { }
 
     static const char*  getServiceName() { return "media.log"; }
@@ -42,28 +42,23 @@
     virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
                                 uint32_t flags);
 
+    virtual void        requestMergeWakeup() override;
+
 private:
 
     // Internal dump
     static const int kDumpLockRetries = 50;
     static const int kDumpLockSleepUs = 20000;
+    static const size_t kMergeBufferSize = 16 * 1024; // TODO determine good value for this
     static bool dumpTryLock(Mutex& mutex);
 
     Mutex               mLock;
-    class NamedReader {
-    public:
-        NamedReader() : mReader(0) { mName[0] = '\0'; } // for Vector
-        NamedReader(const sp<NBLog::Reader>& reader, const char *name) : mReader(reader)
-            { strlcpy(mName, name, sizeof(mName)); }
-        ~NamedReader() { }
-        const sp<NBLog::Reader>&  reader() const { return mReader; }
-        const char*               name() const { return mName; }
-    private:
-        sp<NBLog::Reader>   mReader;
-        static const size_t kMaxName = 32;
-        char                mName[kMaxName];
-    };
-    Vector<NamedReader> mNamedReaders;
+
+    Vector<NBLog::NamedReader> mNamedReaders;
+    NBLog::Shared *mMergerShared;
+    NBLog::Merger mMerger;
+    NBLog::MergeReader mMergeReader;
+    const sp<NBLog::MergeThread> mMergeThread;
 };
 
 }   // namespace android
diff --git a/services/mediaresourcemanager/Android.mk b/services/mediaresourcemanager/Android.mk
index b72230f..c9cd8cc 100644
--- a/services/mediaresourcemanager/Android.mk
+++ b/services/mediaresourcemanager/Android.mk
@@ -4,7 +4,7 @@
 
 LOCAL_SRC_FILES := ResourceManagerService.cpp ServiceLog.cpp
 
-LOCAL_SHARED_LIBRARIES := libmedia libstagefright libbinder libutils liblog
+LOCAL_SHARED_LIBRARIES := libmedia libmediautils libbinder libutils liblog
 
 LOCAL_MODULE:= libresourcemanagerservice
 
@@ -14,7 +14,6 @@
     $(TOPDIR)frameworks/av/include
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/services/mediaresourcemanager/ResourceManagerService.cpp b/services/mediaresourcemanager/ResourceManagerService.cpp
index 3ed0189..78bb587 100644
--- a/services/mediaresourcemanager/ResourceManagerService.cpp
+++ b/services/mediaresourcemanager/ResourceManagerService.cpp
@@ -34,6 +34,31 @@
 
 namespace android {
 
+namespace {
+
+class DeathNotifier : public IBinder::DeathRecipient {
+public:
+    DeathNotifier(const wp<ResourceManagerService> &service, int pid, int64_t clientId)
+        : mService(service), mPid(pid), mClientId(clientId) {}
+
+    virtual void binderDied(const wp<IBinder> & /* who */) override {
+        // Don't check for pid validity since we know it's already dead.
+        sp<ResourceManagerService> service = mService.promote();
+        if (service == nullptr) {
+            ALOGW("ResourceManagerService is dead as well.");
+            return;
+        }
+        service->removeResource(mPid, mClientId, false);
+    }
+
+private:
+    wp<ResourceManagerService> mService;
+    int mPid;
+    int64_t mClientId;
+};
+
+}  // namespace
+
 template <typename T>
 static String8 getString(const Vector<T> &items) {
     String8 itemsStr;
@@ -43,7 +68,7 @@
     return itemsStr;
 }
 
-static bool hasResourceType(MediaResource::Type type, Vector<MediaResource> resources) {
+static bool hasResourceType(MediaResource::Type type, const Vector<MediaResource>& resources) {
     for (size_t i = 0; i < resources.size(); ++i) {
         if (resources[i].mType == type) {
             return true;
@@ -52,7 +77,7 @@
     return false;
 }
 
-static bool hasResourceType(MediaResource::Type type, ResourceInfos infos) {
+static bool hasResourceType(MediaResource::Type type, const ResourceInfos& infos) {
     for (size_t i = 0; i < infos.size(); ++i) {
         if (hasResourceType(type, infos[i].resources)) {
             return true;
@@ -76,7 +101,7 @@
 
 static ResourceInfo& getResourceInfoForEdit(
         int64_t clientId,
-        const sp<IResourceManagerClient> client,
+        const sp<IResourceManagerClient>& client,
         ResourceInfos& infos) {
     for (size_t i = 0; i < infos.size(); ++i) {
         if (infos[i].clientId == clientId) {
@@ -214,17 +239,25 @@
     ResourceInfo& info = getResourceInfoForEdit(clientId, client, infos);
     // TODO: do the merge instead of append.
     info.resources.appendVector(resources);
+    if (info.deathNotifier == nullptr) {
+        info.deathNotifier = new DeathNotifier(this, pid, clientId);
+        IInterface::asBinder(client)->linkToDeath(info.deathNotifier);
+    }
     notifyResourceGranted(pid, resources);
 }
 
 void ResourceManagerService::removeResource(int pid, int64_t clientId) {
+    removeResource(pid, clientId, true);
+}
+
+void ResourceManagerService::removeResource(int pid, int64_t clientId, bool checkValid) {
     String8 log = String8::format(
             "removeResource(pid %d, clientId %lld)",
             pid, (long long) clientId);
     mServiceLog->add(log);
 
     Mutex::Autolock lock(mLock);
-    if (!mProcessInfo->isValidPid(pid)) {
+    if (checkValid && !mProcessInfo->isValidPid(pid)) {
         ALOGE("Rejected removeResource call with invalid pid.");
         return;
     }
@@ -237,6 +270,7 @@
     ResourceInfos &infos = mMap.editValueAt(index);
     for (size_t j = 0; j < infos.size(); ++j) {
         if (infos[j].clientId == clientId) {
+            IInterface::asBinder(infos[j].client)->unlinkToDeath(infos[j].deathNotifier);
             j = infos.removeAt(j);
             found = true;
             break;
diff --git a/services/mediaresourcemanager/ResourceManagerService.h b/services/mediaresourcemanager/ResourceManagerService.h
index 8f6fe9a..9e97ac0 100644
--- a/services/mediaresourcemanager/ResourceManagerService.h
+++ b/services/mediaresourcemanager/ResourceManagerService.h
@@ -36,6 +36,7 @@
 struct ResourceInfo {
     int64_t clientId;
     sp<IResourceManagerClient> client;
+    sp<IBinder::DeathRecipient> deathNotifier;
     Vector<MediaResource> resources;
 };
 
@@ -52,7 +53,7 @@
     virtual status_t dump(int fd, const Vector<String16>& args);
 
     ResourceManagerService();
-    ResourceManagerService(sp<ProcessInfoInterface> processInfo);
+    explicit ResourceManagerService(sp<ProcessInfoInterface> processInfo);
 
     // IResourceManagerService interface
     virtual void config(const Vector<MediaResourcePolicy> &policies);
@@ -70,6 +71,8 @@
     // Returns true if any resource has been reclaimed, otherwise returns false.
     virtual bool reclaimResource(int callingPid, const Vector<MediaResource> &resources);
 
+    void removeResource(int pid, int64_t clientId, bool checkValid);
+
 protected:
     virtual ~ResourceManagerService();
 
diff --git a/services/mediaresourcemanager/ServiceLog.h b/services/mediaresourcemanager/ServiceLog.h
index a6f16eb..380e86a 100644
--- a/services/mediaresourcemanager/ServiceLog.h
+++ b/services/mediaresourcemanager/ServiceLog.h
@@ -30,7 +30,7 @@
 class ServiceLog : public RefBase {
 public:
     ServiceLog();
-    ServiceLog(size_t maxNum);
+    explicit ServiceLog(size_t maxNum);
 
     void add(const String8 &log);
     String8 toString(const char *linePrefix = NULL) const;
diff --git a/services/mediaresourcemanager/test/Android.mk b/services/mediaresourcemanager/test/Android.mk
index 3b4ef0d..6abcf92 100644
--- a/services/mediaresourcemanager/test/Android.mk
+++ b/services/mediaresourcemanager/test/Android.mk
@@ -21,7 +21,6 @@
   frameworks/av/services/mediaresourcemanager \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_32_BIT_ONLY := true
 
@@ -47,7 +46,6 @@
   frameworks/av/services/mediaresourcemanager \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_32_BIT_ONLY := true
 
diff --git a/services/mediaresourcemanager/test/ResourceManagerService_test.cpp b/services/mediaresourcemanager/test/ResourceManagerService_test.cpp
index 62b7711..ed0b0ef 100644
--- a/services/mediaresourcemanager/test/ResourceManagerService_test.cpp
+++ b/services/mediaresourcemanager/test/ResourceManagerService_test.cpp
@@ -29,7 +29,7 @@
 
 namespace android {
 
-static int64_t getId(sp<IResourceManagerClient> client) {
+static int64_t getId(const sp<IResourceManagerClient>& client) {
     return (int64_t) client.get();
 }
 
diff --git a/services/minijail/Android.mk b/services/minijail/Android.mk
new file mode 100644
index 0000000..3e63f97
--- /dev/null
+++ b/services/minijail/Android.mk
@@ -0,0 +1,17 @@
+LOCAL_PATH := $(call my-dir)
+
+# Small library for media.extractor and media.codec sandboxing.
+include $(CLEAR_VARS)
+LOCAL_MODULE := libavservices_minijail
+LOCAL_SRC_FILES := minijail.cpp
+LOCAL_SHARED_LIBRARIES := libbase libminijail
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)
+include $(BUILD_SHARED_LIBRARY)
+
+
+# Unit tests.
+include $(CLEAR_VARS)
+LOCAL_MODULE := libavservices_minijail_unittest
+LOCAL_SRC_FILES := minijail.cpp av_services_minijail_unittest.cpp
+LOCAL_SHARED_LIBRARIES := libbase libminijail
+include $(BUILD_NATIVE_TEST)
diff --git a/services/minijail/av_services_minijail_unittest.cpp b/services/minijail/av_services_minijail_unittest.cpp
new file mode 100644
index 0000000..31313f8
--- /dev/null
+++ b/services/minijail/av_services_minijail_unittest.cpp
@@ -0,0 +1,58 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <string>
+
+#include <android-base/file.h>
+#include <android-base/unique_fd.h>
+
+#include <gtest/gtest.h>
+
+#include "minijail.h"
+
+class WritePolicyTest : public ::testing::Test
+{
+  protected:
+    const std::string base_policy_ =
+        "read: 1\n"
+        "write: 1\n"
+        "rt_sigreturn: 1\n"
+        "exit: 1\n";
+
+    const std::string additional_policy_ =
+        "mmap: 1\n"
+        "munmap: 1\n";
+
+    const std::string full_policy_ = base_policy_ + std::string("\n") + additional_policy_;
+};
+
+TEST_F(WritePolicyTest, OneFile)
+{
+    std::string final_string;
+    android::base::unique_fd fd(android::WritePolicyToPipe(base_policy_, std::string()));
+    EXPECT_LE(0, fd.get());
+    bool success = android::base::ReadFdToString(fd.get(), &final_string);
+    EXPECT_TRUE(success);
+    EXPECT_EQ(final_string, base_policy_);
+}
+
+TEST_F(WritePolicyTest, TwoFiles)
+{
+    std::string final_string;
+    android::base::unique_fd fd(android::WritePolicyToPipe(base_policy_, additional_policy_));
+    EXPECT_LE(0, fd.get());
+    bool success = android::base::ReadFdToString(fd.get(), &final_string);
+    EXPECT_TRUE(success);
+    EXPECT_EQ(final_string, full_policy_);
+}
diff --git a/services/minijail/minijail.cpp b/services/minijail/minijail.cpp
new file mode 100644
index 0000000..f213287
--- /dev/null
+++ b/services/minijail/minijail.cpp
@@ -0,0 +1,95 @@
+// Copyright 2015, The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <android-base/unique_fd.h>
+
+#include <libminijail.h>
+#include <scoped_minijail.h>
+
+#include "minijail.h"
+
+namespace android {
+
+int WritePolicyToPipe(const std::string& base_policy_content,
+                      const std::string& additional_policy_content)
+{
+    int pipefd[2];
+    if (pipe(pipefd) == -1) {
+        PLOG(ERROR) << "pipe() failed";
+        return -1;
+    }
+
+    base::unique_fd write_end(pipefd[1]);
+    std::string content = base_policy_content;
+
+    if (additional_policy_content.length() > 0) {
+        content += "\n";
+        content += additional_policy_content;
+    }
+
+    if (!base::WriteStringToFd(content, write_end.get())) {
+        LOG(ERROR) << "Could not write policy to fd";
+        return -1;
+    }
+
+    return pipefd[0];
+}
+
+void SetUpMinijail(const std::string& base_policy_path, const std::string& additional_policy_path)
+{
+    // No seccomp policy defined for this architecture.
+    if (access(base_policy_path.c_str(), R_OK) == -1) {
+        LOG(WARNING) << "No seccomp policy defined for this architecture.";
+        return;
+    }
+
+    std::string base_policy_content;
+    std::string additional_policy_content;
+    if (!base::ReadFileToString(base_policy_path, &base_policy_content,
+                                false /* follow_symlinks */)) {
+        LOG(FATAL) << "Could not read base policy file '" << base_policy_path << "'";
+    }
+
+    if (additional_policy_path.length() > 0 &&
+        !base::ReadFileToString(additional_policy_path, &additional_policy_content,
+                                false /* follow_symlinks */)) {
+        LOG(WARNING) << "Could not read additional policy file '" << additional_policy_path << "'";
+        additional_policy_content = std::string();
+    }
+
+    base::unique_fd policy_fd(WritePolicyToPipe(base_policy_content, additional_policy_content));
+    if (policy_fd.get() == -1) {
+        LOG(FATAL) << "Could not write seccomp policy to fd";
+    }
+
+    ScopedMinijail jail{minijail_new()};
+    if (!jail) {
+        LOG(FATAL) << "Failed to create minijail.";
+    }
+
+    minijail_no_new_privs(jail.get());
+    minijail_log_seccomp_filter_failures(jail.get());
+    minijail_use_seccomp_filter(jail.get());
+    // Transfer ownership of |policy_fd|.
+    minijail_parse_seccomp_filters_from_fd(jail.get(), policy_fd.release());
+    minijail_enter(jail.get());
+}
+}
diff --git a/services/minijail/minijail.h b/services/minijail/minijail.h
new file mode 100644
index 0000000..c8a2149
--- /dev/null
+++ b/services/minijail/minijail.h
@@ -0,0 +1,26 @@
+// Copyright 2015, The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef AV_SERVICES_MINIJAIL_MINIJAIL
+#define AV_SERVICES_MINIJAIL_MINIJAIL
+
+#include <string>
+
+namespace android {
+int WritePolicyToPipe(const std::string& base_policy_content,
+                      const std::string& additional_policy_content);
+void SetUpMinijail(const std::string& base_policy_path, const std::string& additional_policy_path);
+}
+
+#endif  // AV_SERVICES_MINIJAIL_MINIJAIL
diff --git a/services/oboeservice/AAudioEndpointManager.cpp b/services/oboeservice/AAudioEndpointManager.cpp
new file mode 100644
index 0000000..3dc1feb
--- /dev/null
+++ b/services/oboeservice/AAudioEndpointManager.cpp
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <assert.h>
+#include <map>
+#include <mutex>
+
+#include "AAudioEndpointManager.h"
+
+using namespace android;
+using namespace aaudio;
+
+ANDROID_SINGLETON_STATIC_INSTANCE(AAudioEndpointManager);
+
+AAudioEndpointManager::AAudioEndpointManager()
+        : Singleton<AAudioEndpointManager>()
+        , mInputs()
+        , mOutputs() {
+}
+
+AAudioServiceEndpoint *AAudioEndpointManager::openEndpoint(AAudioService &audioService, int32_t deviceId,
+                                                           aaudio_direction_t direction) {
+    AAudioServiceEndpoint *endpoint = nullptr;
+    std::lock_guard<std::mutex> lock(mLock);
+
+    // Try to find an existing endpoint.
+    switch (direction) {
+        case AAUDIO_DIRECTION_INPUT:
+            endpoint = mInputs[deviceId];
+            break;
+        case AAUDIO_DIRECTION_OUTPUT:
+            endpoint = mOutputs[deviceId];
+            break;
+        default:
+            assert(false); // There are only two possible directions.
+            break;
+    }
+    ALOGD("AAudioEndpointManager::openEndpoint(), found %p for device = %d, dir = %d",
+          endpoint, deviceId, (int)direction);
+
+    // If we can't find an existing one then open a new one.
+    if (endpoint == nullptr) {
+        if (direction == AAUDIO_DIRECTION_INPUT) {
+            AAudioServiceEndpointCapture *capture = new AAudioServiceEndpointCapture(audioService);
+            if (capture->open(deviceId) != AAUDIO_OK) {
+                ALOGE("AAudioEndpointManager::openEndpoint(), open failed");
+                delete capture;
+            } else {
+                mInputs[deviceId] = capture;
+                endpoint = capture;
+            }
+        } else if (direction == AAUDIO_DIRECTION_OUTPUT) {
+            AAudioServiceEndpointPlay *player = new AAudioServiceEndpointPlay(audioService);
+            if (player->open(deviceId) != AAUDIO_OK) {
+                ALOGE("AAudioEndpointManager::openEndpoint(), open failed");
+                delete player;
+            } else {
+                mOutputs[deviceId] = player;
+                endpoint = player;
+            }
+        }
+
+    }
+
+    if (endpoint != nullptr) {
+        // Increment the reference count under this lock.
+        endpoint->setReferenceCount(endpoint->getReferenceCount() + 1);
+    }
+    return endpoint;
+}
+
+void AAudioEndpointManager::closeEndpoint(AAudioServiceEndpoint *serviceEndpoint) {
+    std::lock_guard<std::mutex> lock(mLock);
+    if (serviceEndpoint == nullptr) {
+        return;
+    }
+
+    // Decrement the reference count under this lock.
+    int32_t newRefCount = serviceEndpoint->getReferenceCount() - 1;
+    serviceEndpoint->setReferenceCount(newRefCount);
+    if (newRefCount <= 0) {
+        aaudio_direction_t direction = serviceEndpoint->getDirection();
+        int32_t deviceId = serviceEndpoint->getDeviceId();
+
+        switch (direction) {
+            case AAUDIO_DIRECTION_INPUT:
+                mInputs.erase(deviceId);
+                break;
+            case AAUDIO_DIRECTION_OUTPUT:
+                mOutputs.erase(deviceId);
+                break;
+        }
+
+        serviceEndpoint->close();
+        delete serviceEndpoint;
+    }
+}
diff --git a/services/oboeservice/AAudioEndpointManager.h b/services/oboeservice/AAudioEndpointManager.h
new file mode 100644
index 0000000..db1103d
--- /dev/null
+++ b/services/oboeservice/AAudioEndpointManager.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_ENDPOINT_MANAGER_H
+#define AAUDIO_AAUDIO_ENDPOINT_MANAGER_H
+
+#include <map>
+#include <mutex>
+#include <utils/Singleton.h>
+
+#include "binding/AAudioServiceMessage.h"
+#include "AAudioServiceEndpoint.h"
+#include "AAudioServiceEndpointCapture.h"
+#include "AAudioServiceEndpointPlay.h"
+
+namespace aaudio {
+
+class AAudioEndpointManager : public android::Singleton<AAudioEndpointManager>{
+public:
+    AAudioEndpointManager();
+    ~AAudioEndpointManager() = default;
+
+    /**
+     * Find a service endpoint for the given deviceId and direction.
+     * If an endpoint does not already exist then it will try to create one.
+     *
+     * @param deviceId
+     * @param direction
+     * @return endpoint or nullptr
+     */
+    AAudioServiceEndpoint *openEndpoint(android::AAudioService &audioService,
+                                        int32_t deviceId,
+                                        aaudio_direction_t direction);
+
+    void closeEndpoint(AAudioServiceEndpoint *serviceEndpoint);
+
+private:
+
+    std::mutex    mLock;
+
+    std::map<int32_t, AAudioServiceEndpointCapture *> mInputs;
+    std::map<int32_t, AAudioServiceEndpointPlay *> mOutputs;
+
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_AAUDIO_ENDPOINT_MANAGER_H
diff --git a/services/oboeservice/AAudioMixer.cpp b/services/oboeservice/AAudioMixer.cpp
new file mode 100644
index 0000000..43203d4
--- /dev/null
+++ b/services/oboeservice/AAudioMixer.cpp
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <cstring>
+#include "AAudioMixer.h"
+
+using android::WrappingBuffer;
+using android::FifoBuffer;
+using android::fifo_frames_t;
+
+AAudioMixer::~AAudioMixer() {
+    delete[] mOutputBuffer;
+}
+
+void AAudioMixer::allocate(int32_t samplesPerFrame, int32_t framesPerBurst) {
+    mSamplesPerFrame = samplesPerFrame;
+    mFramesPerBurst = framesPerBurst;
+    int32_t samplesPerBuffer = samplesPerFrame * framesPerBurst;
+    mOutputBuffer = new float[samplesPerBuffer];
+    mBufferSizeInBytes = samplesPerBuffer * sizeof(float);
+}
+
+void AAudioMixer::clear() {
+    memset(mOutputBuffer, 0, mBufferSizeInBytes);
+}
+
+bool AAudioMixer::mix(FifoBuffer *fifo, float volume) {
+    WrappingBuffer wrappingBuffer;
+    float *destination = mOutputBuffer;
+    fifo_frames_t framesLeft = mFramesPerBurst;
+
+    // Gather the data from the client. May be in two parts.
+    fifo->getFullDataAvailable(&wrappingBuffer);
+
+    // Mix data in one or two parts.
+    int partIndex = 0;
+    while (framesLeft > 0 && partIndex < WrappingBuffer::SIZE) {
+        fifo_frames_t framesToMix = framesLeft;
+        fifo_frames_t framesAvailable = wrappingBuffer.numFrames[partIndex];
+        if (framesAvailable > 0) {
+            if (framesToMix > framesAvailable) {
+                framesToMix = framesAvailable;
+            }
+            mixPart(destination, (float *)wrappingBuffer.data[partIndex], framesToMix, volume);
+
+            destination += framesToMix * mSamplesPerFrame;
+            framesLeft -= framesToMix;
+        }
+        partIndex++;
+    }
+    fifo->getFifoControllerBase()->advanceReadIndex(mFramesPerBurst - framesLeft);
+    if (framesLeft > 0) {
+        //ALOGW("AAudioMixer::mix() UNDERFLOW by %d / %d frames ----- UNDERFLOW !!!!!!!!!!",
+        //      framesLeft, mFramesPerBurst);
+    }
+    return (framesLeft > 0); // did not get all the frames we needed, ie. "underflow"
+}
+
+void AAudioMixer::mixPart(float *destination, float *source, int32_t numFrames, float volume) {
+    int32_t numSamples = numFrames * mSamplesPerFrame;
+    // TODO maybe optimize using SIMD
+    for (int sampleIndex = 0; sampleIndex < numSamples; sampleIndex++) {
+        *destination++ += *source++ * volume;
+    }
+}
+
+float *AAudioMixer::getOutputBuffer() {
+    return mOutputBuffer;
+}
diff --git a/services/oboeservice/AAudioMixer.h b/services/oboeservice/AAudioMixer.h
new file mode 100644
index 0000000..9155fec
--- /dev/null
+++ b/services/oboeservice/AAudioMixer.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_MIXER_H
+#define AAUDIO_AAUDIO_MIXER_H
+
+#include <stdint.h>
+
+#include <aaudio/AAudio.h>
+#include <fifo/FifoBuffer.h>
+
+class AAudioMixer {
+public:
+    AAudioMixer() {}
+    ~AAudioMixer();
+
+    void allocate(int32_t samplesPerFrame, int32_t framesPerBurst);
+
+    void clear();
+
+    /**
+     * Mix from this FIFO
+     * @param fifo
+     * @param volume
+     * @return true if underflowed
+     */
+    bool mix(android::FifoBuffer *fifo, float volume);
+
+    void mixPart(float *destination, float *source, int32_t numFrames, float volume);
+
+    float *getOutputBuffer();
+
+private:
+    float   *mOutputBuffer = nullptr;
+    int32_t  mSamplesPerFrame = 0;
+    int32_t  mFramesPerBurst = 0;
+    int32_t  mBufferSizeInBytes = 0;
+};
+
+
+#endif //AAUDIO_AAUDIO_MIXER_H
diff --git a/services/oboeservice/AAudioService.cpp b/services/oboeservice/AAudioService.cpp
new file mode 100644
index 0000000..c9b9065
--- /dev/null
+++ b/services/oboeservice/AAudioService.cpp
@@ -0,0 +1,212 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+//#include <time.h>
+//#include <pthread.h>
+
+#include <aaudio/AAudio.h>
+#include <mediautils/SchedulingPolicyService.h>
+#include <utils/String16.h>
+
+#include "binding/AAudioServiceMessage.h"
+#include "AAudioService.h"
+#include "AAudioServiceStreamMMAP.h"
+#include "AAudioServiceStreamShared.h"
+#include "AAudioServiceStreamMMAP.h"
+#include "binding/IAAudioService.h"
+#include "utility/HandleTracker.h"
+
+using namespace android;
+using namespace aaudio;
+
+typedef enum
+{
+    AAUDIO_HANDLE_TYPE_STREAM
+} aaudio_service_handle_type_t;
+static_assert(AAUDIO_HANDLE_TYPE_STREAM < HANDLE_TRACKER_MAX_TYPES, "Too many handle types.");
+
+android::AAudioService::AAudioService()
+    : BnAAudioService() {
+}
+
+AAudioService::~AAudioService() {
+}
+
+aaudio_handle_t AAudioService::openStream(const aaudio::AAudioStreamRequest &request,
+                                          aaudio::AAudioStreamConfiguration &configurationOutput) {
+    aaudio_result_t result = AAUDIO_OK;
+    AAudioServiceStreamBase *serviceStream = nullptr;
+    const AAudioStreamConfiguration &configurationInput = request.getConstantConfiguration();
+    bool sharingModeMatchRequired = request.isSharingModeMatchRequired();
+    aaudio_sharing_mode_t sharingMode = configurationInput.getSharingMode();
+
+    if (sharingMode != AAUDIO_SHARING_MODE_EXCLUSIVE && sharingMode != AAUDIO_SHARING_MODE_SHARED) {
+        ALOGE("AAudioService::openStream(): unrecognized sharing mode = %d", sharingMode);
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    }
+
+    if (sharingMode == AAUDIO_SHARING_MODE_EXCLUSIVE) {
+        serviceStream = new AAudioServiceStreamMMAP();
+        result = serviceStream->open(request, configurationOutput);
+        if (result != AAUDIO_OK) {
+            // fall back to using a shared stream
+            ALOGD("AAudioService::openStream(), EXCLUSIVE mode failed");
+            delete serviceStream;
+            serviceStream = nullptr;
+        } else {
+            configurationOutput.setSharingMode(AAUDIO_SHARING_MODE_EXCLUSIVE);
+        }
+    }
+
+    // if SHARED requested or if EXCLUSIVE failed
+    if (sharingMode == AAUDIO_SHARING_MODE_SHARED
+         || (serviceStream == nullptr && !sharingModeMatchRequired)) {
+        serviceStream =  new AAudioServiceStreamShared(*this);
+        result = serviceStream->open(request, configurationOutput);
+        configurationOutput.setSharingMode(AAUDIO_SHARING_MODE_SHARED);
+    }
+
+    if (result != AAUDIO_OK) {
+        delete serviceStream;
+        ALOGE("AAudioService::openStream(): failed, return %d", result);
+        return result;
+    } else {
+        aaudio_handle_t handle = mHandleTracker.put(AAUDIO_HANDLE_TYPE_STREAM, serviceStream);
+        ALOGV("AAudioService::openStream(): handle = 0x%08X", handle);
+        if (handle < 0) {
+            ALOGE("AAudioService::openStream(): handle table full");
+            delete serviceStream;
+        }
+        return handle;
+    }
+}
+
+aaudio_result_t AAudioService::closeStream(aaudio_handle_t streamHandle) {
+    AAudioServiceStreamBase *serviceStream = (AAudioServiceStreamBase *)
+            mHandleTracker.remove(AAUDIO_HANDLE_TYPE_STREAM,
+                                  streamHandle);
+    ALOGV("AAudioService.closeStream(0x%08X)", streamHandle);
+    if (serviceStream != nullptr) {
+        serviceStream->close();
+        delete serviceStream;
+        return AAUDIO_OK;
+    }
+    return AAUDIO_ERROR_INVALID_HANDLE;
+}
+
+AAudioServiceStreamBase *AAudioService::convertHandleToServiceStream(
+        aaudio_handle_t streamHandle) const {
+    return (AAudioServiceStreamBase *) mHandleTracker.get(AAUDIO_HANDLE_TYPE_STREAM,
+                              (aaudio_handle_t)streamHandle);
+}
+
+aaudio_result_t AAudioService::getStreamDescription(
+                aaudio_handle_t streamHandle,
+                aaudio::AudioEndpointParcelable &parcelable) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    if (serviceStream == nullptr) {
+        ALOGE("AAudioService::getStreamDescription(), illegal stream handle = 0x%0x", streamHandle);
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    aaudio_result_t result = serviceStream->getDescription(parcelable);
+    // parcelable.dump();
+    return result;
+}
+
+aaudio_result_t AAudioService::startStream(aaudio_handle_t streamHandle) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    if (serviceStream == nullptr) {
+        ALOGE("AAudioService::startStream(), illegal stream handle = 0x%0x", streamHandle);
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    aaudio_result_t result = serviceStream->start();
+    return result;
+}
+
+aaudio_result_t AAudioService::pauseStream(aaudio_handle_t streamHandle) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    if (serviceStream == nullptr) {
+        ALOGE("AAudioService::pauseStream(), illegal stream handle = 0x%0x", streamHandle);
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    aaudio_result_t result = serviceStream->pause();
+    return result;
+}
+
+aaudio_result_t AAudioService::stopStream(aaudio_handle_t streamHandle) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    if (serviceStream == nullptr) {
+        ALOGE("AAudioService::pauseStream(), illegal stream handle = 0x%0x", streamHandle);
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    aaudio_result_t result = serviceStream->stop();
+    return result;
+}
+
+aaudio_result_t AAudioService::flushStream(aaudio_handle_t streamHandle) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    if (serviceStream == nullptr) {
+        ALOGE("AAudioService::flushStream(), illegal stream handle = 0x%0x", streamHandle);
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    return serviceStream->flush();
+}
+
+aaudio_result_t AAudioService::registerAudioThread(aaudio_handle_t streamHandle,
+                                                         pid_t clientProcessId,
+                                                         pid_t clientThreadId,
+                                                         int64_t periodNanoseconds) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    if (serviceStream == nullptr) {
+        ALOGE("AAudioService::registerAudioThread(), illegal stream handle = 0x%0x", streamHandle);
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    if (serviceStream->getRegisteredThread() != AAudioServiceStreamBase::ILLEGAL_THREAD_ID) {
+        ALOGE("AAudioService::registerAudioThread(), thread already registered");
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    serviceStream->setRegisteredThread(clientThreadId);
+    int err = android::requestPriority(clientProcessId, clientThreadId,
+                                       DEFAULT_AUDIO_PRIORITY, true /* isForApp */);
+    if (err != 0){
+        ALOGE("AAudioService::registerAudioThread() failed, errno = %d, priority = %d",
+              errno, DEFAULT_AUDIO_PRIORITY);
+        return AAUDIO_ERROR_INTERNAL;
+    } else {
+        return AAUDIO_OK;
+    }
+}
+
+aaudio_result_t AAudioService::unregisterAudioThread(aaudio_handle_t streamHandle,
+                                                     pid_t clientProcessId,
+                                                     pid_t clientThreadId) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    if (serviceStream == nullptr) {
+        ALOGE("AAudioService::unregisterAudioThread(), illegal stream handle = 0x%0x",
+              streamHandle);
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    if (serviceStream->getRegisteredThread() != clientThreadId) {
+        ALOGE("AAudioService::unregisterAudioThread(), wrong thread");
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    }
+    serviceStream->setRegisteredThread(0);
+    return AAUDIO_OK;
+}
diff --git a/services/oboeservice/AAudioService.h b/services/oboeservice/AAudioService.h
new file mode 100644
index 0000000..f5a7d2f
--- /dev/null
+++ b/services/oboeservice/AAudioService.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_SERVICE_H
+#define AAUDIO_AAUDIO_SERVICE_H
+
+#include <time.h>
+#include <pthread.h>
+
+#include <binder/BinderService.h>
+
+#include <aaudio/AAudio.h>
+#include "utility/HandleTracker.h"
+#include "binding/IAAudioService.h"
+#include "binding/AAudioServiceInterface.h"
+
+#include "AAudioServiceStreamBase.h"
+
+namespace android {
+
+class AAudioService :
+    public BinderService<AAudioService>,
+    public BnAAudioService,
+    public aaudio::AAudioServiceInterface
+{
+    friend class BinderService<AAudioService>;
+
+public:
+    AAudioService();
+    virtual ~AAudioService();
+
+    static const char* getServiceName() { return AAUDIO_SERVICE_NAME; }
+
+    virtual aaudio_handle_t openStream(const aaudio::AAudioStreamRequest &request,
+                                     aaudio::AAudioStreamConfiguration &configuration);
+
+    virtual aaudio_result_t closeStream(aaudio_handle_t streamHandle);
+
+    virtual aaudio_result_t getStreamDescription(
+                aaudio_handle_t streamHandle,
+                aaudio::AudioEndpointParcelable &parcelable);
+
+    virtual aaudio_result_t startStream(aaudio_handle_t streamHandle);
+
+    virtual aaudio_result_t pauseStream(aaudio_handle_t streamHandle);
+
+    virtual aaudio_result_t stopStream(aaudio_handle_t streamHandle);
+
+    virtual aaudio_result_t flushStream(aaudio_handle_t streamHandle);
+
+    virtual aaudio_result_t registerAudioThread(aaudio_handle_t streamHandle,
+                                              pid_t pid, pid_t tid,
+                                              int64_t periodNanoseconds) ;
+
+    virtual aaudio_result_t unregisterAudioThread(aaudio_handle_t streamHandle,
+                                                  pid_t pid, pid_t tid);
+
+private:
+
+    aaudio::AAudioServiceStreamBase *convertHandleToServiceStream(aaudio_handle_t streamHandle) const;
+
+    HandleTracker mHandleTracker;
+
+    enum constants {
+        DEFAULT_AUDIO_PRIORITY = 2
+    };
+};
+
+} /* namespace android */
+
+#endif //AAUDIO_AAUDIO_SERVICE_H
diff --git a/services/oboeservice/AAudioServiceEndpoint.cpp b/services/oboeservice/AAudioServiceEndpoint.cpp
new file mode 100644
index 0000000..d8ae284
--- /dev/null
+++ b/services/oboeservice/AAudioServiceEndpoint.cpp
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <assert.h>
+#include <map>
+#include <mutex>
+#include <utils/Singleton.h>
+
+#include "AAudioEndpointManager.h"
+#include "AAudioServiceEndpoint.h"
+#include <algorithm>
+#include <mutex>
+#include <vector>
+
+#include "core/AudioStreamBuilder.h"
+#include "AAudioServiceEndpoint.h"
+#include "AAudioServiceStreamShared.h"
+
+using namespace android;  // TODO just import names needed
+using namespace aaudio;   // TODO just import names needed
+
+#define MIN_TIMEOUT_NANOS        (1000 * AAUDIO_NANOS_PER_MILLISECOND)
+
+// Wait at least this many times longer than the operation should take.
+#define MIN_TIMEOUT_OPERATIONS    4
+
+// This is the maximum size in frames. The effective size can be tuned smaller at runtime.
+#define DEFAULT_BUFFER_CAPACITY   (48 * 8)
+
+// Set up an EXCLUSIVE MMAP stream that will be shared.
+aaudio_result_t AAudioServiceEndpoint::open(int32_t deviceId) {
+    mStreamInternal = getStreamInternal();
+
+    AudioStreamBuilder builder;
+    builder.setSharingMode(AAUDIO_SHARING_MODE_EXCLUSIVE);
+    // Don't fall back to SHARED because that would cause recursion.
+    builder.setSharingModeMatchRequired(true);
+    builder.setDeviceId(deviceId);
+    builder.setDirection(getDirection());
+    builder.setBufferCapacity(DEFAULT_BUFFER_CAPACITY);
+
+    return getStreamInternal()->open(builder);
+}
+
+aaudio_result_t AAudioServiceEndpoint::close() {
+    return getStreamInternal()->close();
+}
+
+// TODO, maybe use an interface to reduce exposure
+aaudio_result_t AAudioServiceEndpoint::registerStream(AAudioServiceStreamShared *sharedStream) {
+    std::lock_guard<std::mutex> lock(mLockStreams);
+    mRegisteredStreams.push_back(sharedStream);
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AAudioServiceEndpoint::unregisterStream(AAudioServiceStreamShared *sharedStream) {
+    std::lock_guard<std::mutex> lock(mLockStreams);
+    mRegisteredStreams.erase(std::remove(mRegisteredStreams.begin(), mRegisteredStreams.end(), sharedStream),
+              mRegisteredStreams.end());
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AAudioServiceEndpoint::startStream(AAudioServiceStreamShared *sharedStream) {
+    // TODO use real-time technique to avoid mutex, eg. atomic command FIFO
+    std::lock_guard<std::mutex> lock(mLockStreams);
+    mRunningStreams.push_back(sharedStream);
+    if (mRunningStreams.size() == 1) {
+        startSharingThread_l();
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AAudioServiceEndpoint::stopStream(AAudioServiceStreamShared *sharedStream) {
+    int numRunningStreams = 0;
+    {
+        std::lock_guard<std::mutex> lock(mLockStreams);
+        mRunningStreams.erase(
+                std::remove(mRunningStreams.begin(), mRunningStreams.end(), sharedStream),
+                mRunningStreams.end());
+        numRunningStreams = mRunningStreams.size();
+    }
+    if (numRunningStreams == 0) {
+        // Don't call this under a lock because the callbackLoop also uses the lock.
+        stopSharingThread();
+    }
+    return AAUDIO_OK;
+}
+
+static void *aaudio_endpoint_thread_proc(void *context) {
+    AAudioServiceEndpoint *endpoint = (AAudioServiceEndpoint *) context;
+    if (endpoint != NULL) {
+        return endpoint->callbackLoop();
+    } else {
+        return NULL;
+    }
+}
+
+aaudio_result_t AAudioServiceEndpoint::startSharingThread_l() {
+    // Launch the callback loop thread.
+    int64_t periodNanos = getStreamInternal()->getFramesPerBurst()
+                          * AAUDIO_NANOS_PER_SECOND
+                          / getSampleRate();
+    mCallbackEnabled.store(true);
+    return getStreamInternal()->createThread(periodNanos, aaudio_endpoint_thread_proc, this);
+}
+
+aaudio_result_t AAudioServiceEndpoint::stopSharingThread() {
+    mCallbackEnabled.store(false);
+    aaudio_result_t result = getStreamInternal()->joinThread(NULL);
+    return result;
+}
+
+void AAudioServiceEndpoint::disconnectRegisteredStreams() {
+    std::lock_guard<std::mutex> lock(mLockStreams);
+    for(AAudioServiceStreamShared *sharedStream : mRunningStreams) {
+        sharedStream->onStop();
+    }
+    mRunningStreams.clear();
+    for(AAudioServiceStreamShared *sharedStream : mRegisteredStreams) {
+        sharedStream->onDisconnect();
+    }
+    mRegisteredStreams.clear();
+}
diff --git a/services/oboeservice/AAudioServiceEndpoint.h b/services/oboeservice/AAudioServiceEndpoint.h
new file mode 100644
index 0000000..50bf049
--- /dev/null
+++ b/services/oboeservice/AAudioServiceEndpoint.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_SERVICE_ENDPOINT_H
+#define AAUDIO_SERVICE_ENDPOINT_H
+
+#include <atomic>
+#include <functional>
+#include <mutex>
+#include <vector>
+
+#include "client/AudioStreamInternal.h"
+#include "client/AudioStreamInternalPlay.h"
+#include "binding/AAudioServiceMessage.h"
+#include "AAudioServiceStreamShared.h"
+#include "AAudioServiceStreamMMAP.h"
+#include "AAudioMixer.h"
+#include "AAudioService.h"
+
+namespace aaudio {
+
+class AAudioServiceEndpoint {
+public:
+    virtual ~AAudioServiceEndpoint() = default;
+
+    virtual aaudio_result_t open(int32_t deviceId);
+
+    int32_t getSampleRate() const { return mStreamInternal->getSampleRate(); }
+    int32_t getSamplesPerFrame() const { return mStreamInternal->getSamplesPerFrame();  }
+    int32_t getFramesPerBurst() const { return mStreamInternal->getFramesPerBurst();  }
+
+    aaudio_result_t registerStream(AAudioServiceStreamShared *sharedStream);
+    aaudio_result_t unregisterStream(AAudioServiceStreamShared *sharedStream);
+    aaudio_result_t startStream(AAudioServiceStreamShared *sharedStream);
+    aaudio_result_t stopStream(AAudioServiceStreamShared *sharedStream);
+    aaudio_result_t close();
+
+    int32_t getDeviceId() const { return mStreamInternal->getDeviceId(); }
+
+    aaudio_direction_t getDirection() const { return mStreamInternal->getDirection(); }
+
+    void disconnectRegisteredStreams();
+
+    virtual void *callbackLoop() = 0;
+
+    // This should only be called from the AAudioEndpointManager under a mutex.
+    int32_t getReferenceCount() const {
+        return mReferenceCount;
+    }
+
+    // This should only be called from the AAudioEndpointManager under a mutex.
+    void setReferenceCount(int32_t count) {
+        mReferenceCount = count;
+    }
+
+    virtual AudioStreamInternal *getStreamInternal() = 0;
+
+    std::atomic<bool>        mCallbackEnabled;
+
+    std::mutex               mLockStreams;
+
+    std::vector<AAudioServiceStreamShared *> mRegisteredStreams;
+    std::vector<AAudioServiceStreamShared *> mRunningStreams;
+
+private:
+    aaudio_result_t startSharingThread_l();
+    aaudio_result_t stopSharingThread();
+
+    AudioStreamInternal     *mStreamInternal = nullptr;
+    int32_t                  mReferenceCount = 0;
+};
+
+} /* namespace aaudio */
+
+
+#endif //AAUDIO_SERVICE_ENDPOINT_H
diff --git a/services/oboeservice/AAudioServiceEndpointCapture.cpp b/services/oboeservice/AAudioServiceEndpointCapture.cpp
new file mode 100644
index 0000000..29d6cb9
--- /dev/null
+++ b/services/oboeservice/AAudioServiceEndpointCapture.cpp
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <assert.h>
+#include <map>
+#include <mutex>
+#include <utils/Singleton.h>
+
+#include "AAudioEndpointManager.h"
+#include "AAudioServiceEndpoint.h"
+
+#include "core/AudioStreamBuilder.h"
+#include "AAudioServiceEndpoint.h"
+#include "AAudioServiceStreamShared.h"
+#include "AAudioServiceEndpointCapture.h"
+
+using namespace android;  // TODO just import names needed
+using namespace aaudio;   // TODO just import names needed
+
+AAudioServiceEndpointCapture::AAudioServiceEndpointCapture(AAudioService &audioService)
+        : mStreamInternalCapture(audioService, true) {
+}
+
+AAudioServiceEndpointCapture::~AAudioServiceEndpointCapture() {
+    delete mDistributionBuffer;
+}
+
+aaudio_result_t AAudioServiceEndpointCapture::open(int32_t deviceId) {
+    aaudio_result_t result = AAudioServiceEndpoint::open(deviceId);
+    if (result == AAUDIO_OK) {
+        delete mDistributionBuffer;
+        int distributionBufferSizeBytes = getStreamInternal()->getFramesPerBurst()
+                                          * getStreamInternal()->getBytesPerFrame();
+        mDistributionBuffer = new uint8_t[distributionBufferSizeBytes];
+    }
+    return result;
+}
+
+// Read data from the shared MMAP stream and then distribute it to the client streams.
+void *AAudioServiceEndpointCapture::callbackLoop() {
+    ALOGD("AAudioServiceEndpointCapture(): callbackLoop() entering");
+    int32_t underflowCount = 0;
+
+    aaudio_result_t result = getStreamInternal()->requestStart();
+
+    int64_t timeoutNanos = getStreamInternal()->calculateReasonableTimeout();
+
+    // result might be a frame count
+    while (mCallbackEnabled.load() && getStreamInternal()->isActive() && (result >= 0)) {
+        // Read audio data from stream using a blocking read.
+        result = getStreamInternal()->read(mDistributionBuffer, getFramesPerBurst(), timeoutNanos);
+        if (result == AAUDIO_ERROR_DISCONNECTED) {
+            disconnectRegisteredStreams();
+            break;
+        } else if (result != getFramesPerBurst()) {
+            ALOGW("AAudioServiceEndpointCapture(): callbackLoop() read %d / %d",
+                  result, getFramesPerBurst());
+            break;
+        }
+
+        // Distribute data to each active stream.
+        { // use lock guard
+            std::lock_guard <std::mutex> lock(mLockStreams);
+            for (AAudioServiceStreamShared *sharedStream : mRunningStreams) {
+                FifoBuffer *fifo = sharedStream->getDataFifoBuffer();
+                if (fifo->getFifoControllerBase()->getEmptyFramesAvailable() <
+                    getFramesPerBurst()) {
+                    underflowCount++;
+                } else {
+                    fifo->write(mDistributionBuffer, getFramesPerBurst());
+                }
+                sharedStream->markTransferTime(AudioClock::getNanoseconds());
+            }
+        }
+    }
+
+    result = getStreamInternal()->requestStop();
+
+    ALOGD("AAudioServiceEndpointCapture(): callbackLoop() exiting, %d underflows", underflowCount);
+    return NULL; // TODO review
+}
diff --git a/services/oboeservice/AAudioServiceEndpointCapture.h b/services/oboeservice/AAudioServiceEndpointCapture.h
new file mode 100644
index 0000000..35857d1
--- /dev/null
+++ b/services/oboeservice/AAudioServiceEndpointCapture.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_SERVICE_ENDPOINT_CAPTURE_H
+#define AAUDIO_SERVICE_ENDPOINT_CAPTURE_H
+
+#include "client/AudioStreamInternal.h"
+#include "client/AudioStreamInternalCapture.h"
+
+namespace aaudio {
+
+class AAudioServiceEndpointCapture : public AAudioServiceEndpoint {
+public:
+    explicit AAudioServiceEndpointCapture(android::AAudioService &audioService);
+    virtual ~AAudioServiceEndpointCapture();
+
+    aaudio_result_t open(int32_t deviceId) override;
+
+    AudioStreamInternal *getStreamInternal() override {
+        return &mStreamInternalCapture;
+    }
+
+    void *callbackLoop() override;
+
+private:
+    AudioStreamInternalCapture  mStreamInternalCapture;
+    uint8_t                    *mDistributionBuffer = nullptr;
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_SERVICE_ENDPOINT_CAPTURE_H
diff --git a/services/oboeservice/AAudioServiceEndpointPlay.cpp b/services/oboeservice/AAudioServiceEndpointPlay.cpp
new file mode 100644
index 0000000..cc09cc3
--- /dev/null
+++ b/services/oboeservice/AAudioServiceEndpointPlay.cpp
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <assert.h>
+#include <map>
+#include <mutex>
+#include <utils/Singleton.h>
+
+#include "AAudioEndpointManager.h"
+#include "AAudioServiceEndpoint.h"
+#include <algorithm>
+#include <mutex>
+#include <vector>
+
+#include "core/AudioStreamBuilder.h"
+#include "AAudioServiceEndpoint.h"
+#include "AAudioServiceStreamShared.h"
+#include "AAudioServiceEndpointPlay.h"
+
+using namespace android;  // TODO just import names needed
+using namespace aaudio;   // TODO just import names needed
+
+#define BURSTS_PER_BUFFER_DEFAULT   2
+
+AAudioServiceEndpointPlay::AAudioServiceEndpointPlay(AAudioService &audioService)
+        : mStreamInternalPlay(audioService, true) {
+}
+
+AAudioServiceEndpointPlay::~AAudioServiceEndpointPlay() {
+}
+
+aaudio_result_t AAudioServiceEndpointPlay::open(int32_t deviceId) {
+    aaudio_result_t result = AAudioServiceEndpoint::open(deviceId);
+    if (result == AAUDIO_OK) {
+        mMixer.allocate(getStreamInternal()->getSamplesPerFrame(),
+                        getStreamInternal()->getFramesPerBurst());
+
+        int32_t burstsPerBuffer = AAudioProperty_getMixerBursts();
+        if (burstsPerBuffer == 0) {
+            mLatencyTuningEnabled = true;
+            burstsPerBuffer = BURSTS_PER_BUFFER_DEFAULT;
+        }
+        ALOGD("AAudioServiceEndpoint(): burstsPerBuffer = %d", burstsPerBuffer);
+        int32_t desiredBufferSize = burstsPerBuffer * getStreamInternal()->getFramesPerBurst();
+        getStreamInternal()->setBufferSize(desiredBufferSize);
+    }
+    return result;
+}
+
+// Mix data from each application stream and write result to the shared MMAP stream.
+void *AAudioServiceEndpointPlay::callbackLoop() {
+    ALOGD("AAudioServiceEndpointPlay(): callbackLoop() entering");
+    int32_t underflowCount = 0;
+
+    aaudio_result_t result = getStreamInternal()->requestStart();
+
+    int64_t timeoutNanos = getStreamInternal()->calculateReasonableTimeout();
+
+    // result might be a frame count
+    while (mCallbackEnabled.load() && getStreamInternal()->isActive() && (result >= 0)) {
+        // Mix data from each active stream.
+        mMixer.clear();
+        { // use lock guard
+            std::lock_guard <std::mutex> lock(mLockStreams);
+            for (AAudioServiceStreamShared *sharedStream : mRunningStreams) {
+                FifoBuffer *fifo = sharedStream->getDataFifoBuffer();
+                float volume = 0.5; // TODO get from system
+                bool underflowed = mMixer.mix(fifo, volume);
+                underflowCount += underflowed ? 1 : 0;
+                // TODO log underflows in each stream
+                sharedStream->markTransferTime(AudioClock::getNanoseconds());
+            }
+        }
+
+        // Write mixer output to stream using a blocking write.
+        result = getStreamInternal()->write(mMixer.getOutputBuffer(),
+                                            getFramesPerBurst(), timeoutNanos);
+        if (result == AAUDIO_ERROR_DISCONNECTED) {
+            disconnectRegisteredStreams();
+            break;
+        } else if (result != getFramesPerBurst()) {
+            ALOGW("AAudioServiceEndpoint(): callbackLoop() wrote %d / %d",
+                  result, getFramesPerBurst());
+            break;
+        }
+    }
+
+    result = getStreamInternal()->requestStop();
+
+    ALOGD("AAudioServiceEndpointPlay(): callbackLoop() exiting, %d underflows", underflowCount);
+    return NULL; // TODO review
+}
diff --git a/services/oboeservice/AAudioServiceEndpointPlay.h b/services/oboeservice/AAudioServiceEndpointPlay.h
new file mode 100644
index 0000000..b977960
--- /dev/null
+++ b/services/oboeservice/AAudioServiceEndpointPlay.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_SERVICE_ENDPOINT_PLAY_H
+#define AAUDIO_SERVICE_ENDPOINT_PLAY_H
+
+#include <atomic>
+#include <functional>
+#include <mutex>
+#include <vector>
+
+#include "client/AudioStreamInternal.h"
+#include "client/AudioStreamInternalPlay.h"
+#include "binding/AAudioServiceMessage.h"
+#include "AAudioServiceStreamShared.h"
+#include "AAudioServiceStreamMMAP.h"
+#include "AAudioMixer.h"
+#include "AAudioService.h"
+
+namespace aaudio {
+
+class AAudioServiceEndpointPlay : public AAudioServiceEndpoint {
+public:
+    explicit AAudioServiceEndpointPlay(android::AAudioService &audioService);
+    virtual ~AAudioServiceEndpointPlay();
+
+    aaudio_result_t open(int32_t deviceId) override;
+
+    AudioStreamInternal *getStreamInternal() override {
+        return &mStreamInternalPlay;
+    }
+
+    void *callbackLoop() override;
+
+private:
+    AudioStreamInternalPlay  mStreamInternalPlay; // for playing output of mixer
+    bool                     mLatencyTuningEnabled = false; // TODO implement tuning
+    AAudioMixer              mMixer;    //
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_SERVICE_ENDPOINT_PLAY_H
diff --git a/services/oboeservice/AAudioServiceStreamBase.cpp b/services/oboeservice/AAudioServiceStreamBase.cpp
new file mode 100644
index 0000000..8f0abc2
--- /dev/null
+++ b/services/oboeservice/AAudioServiceStreamBase.cpp
@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <mutex>
+
+#include "binding/IAAudioService.h"
+#include "binding/AAudioServiceMessage.h"
+#include "utility/AudioClock.h"
+
+#include "AAudioServiceStreamBase.h"
+#include "TimestampScheduler.h"
+
+using namespace android;  // TODO just import names needed
+using namespace aaudio;   // TODO just import names needed
+
+/**
+ * Base class for streams in the service.
+ * @return
+ */
+
+AAudioServiceStreamBase::AAudioServiceStreamBase()
+        : mUpMessageQueue(nullptr)
+        , mAAudioThread() {
+}
+
+AAudioServiceStreamBase::~AAudioServiceStreamBase() {
+    close();
+}
+
+aaudio_result_t AAudioServiceStreamBase::open(const aaudio::AAudioStreamRequest &request,
+                     aaudio::AAudioStreamConfiguration &configurationOutput) {
+    std::lock_guard<std::mutex> lock(mLockUpMessageQueue);
+    if (mUpMessageQueue != nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    } else {
+        mUpMessageQueue = new SharedRingBuffer();
+        return mUpMessageQueue->allocate(sizeof(AAudioServiceMessage), QUEUE_UP_CAPACITY_COMMANDS);
+    }
+}
+
+aaudio_result_t AAudioServiceStreamBase::close() {
+    std::lock_guard<std::mutex> lock(mLockUpMessageQueue);
+    delete mUpMessageQueue;
+    mUpMessageQueue = nullptr;
+
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AAudioServiceStreamBase::start() {
+    sendServiceEvent(AAUDIO_SERVICE_EVENT_STARTED);
+    mState = AAUDIO_STREAM_STATE_STARTED;
+    mThreadEnabled.store(true);
+    return mAAudioThread.start(this);
+}
+
+aaudio_result_t AAudioServiceStreamBase::pause() {
+
+    sendCurrentTimestamp();
+    mThreadEnabled.store(false);
+    aaudio_result_t result = mAAudioThread.stop();
+    if (result != AAUDIO_OK) {
+        processError();
+        return result;
+    }
+    sendServiceEvent(AAUDIO_SERVICE_EVENT_PAUSED);
+    mState = AAUDIO_STREAM_STATE_PAUSED;
+    return result;
+}
+
+aaudio_result_t AAudioServiceStreamBase::stop() {
+    // TODO wait for data to be played out
+    sendCurrentTimestamp();
+    mThreadEnabled.store(false);
+    aaudio_result_t result = mAAudioThread.stop();
+    if (result != AAUDIO_OK) {
+        processError();
+        return result;
+    }
+    sendServiceEvent(AAUDIO_SERVICE_EVENT_STOPPED);
+    mState = AAUDIO_STREAM_STATE_STOPPED;
+    return result;
+}
+
+aaudio_result_t AAudioServiceStreamBase::flush() {
+    sendServiceEvent(AAUDIO_SERVICE_EVENT_FLUSHED);
+    mState = AAUDIO_STREAM_STATE_FLUSHED;
+    return AAUDIO_OK;
+}
+
+// implement Runnable, periodically send timestamps to client
+void AAudioServiceStreamBase::run() {
+    ALOGD("AAudioServiceStreamBase::run() entering ----------------");
+    TimestampScheduler timestampScheduler;
+    timestampScheduler.setBurstPeriod(mFramesPerBurst, mSampleRate);
+    timestampScheduler.start(AudioClock::getNanoseconds());
+    int64_t nextTime = timestampScheduler.nextAbsoluteTime();
+    while(mThreadEnabled.load()) {
+        if (AudioClock::getNanoseconds() >= nextTime) {
+            aaudio_result_t result = sendCurrentTimestamp();
+            if (result != AAUDIO_OK) {
+                break;
+            }
+            nextTime = timestampScheduler.nextAbsoluteTime();
+        } else  {
+            // Sleep until it is time to send the next timestamp.
+            AudioClock::sleepUntilNanoTime(nextTime);
+        }
+    }
+    ALOGD("AAudioServiceStreamBase::run() exiting ----------------");
+}
+
+void AAudioServiceStreamBase::processError() {
+    sendServiceEvent(AAUDIO_SERVICE_EVENT_DISCONNECTED);
+}
+
+aaudio_result_t AAudioServiceStreamBase::sendServiceEvent(aaudio_service_event_t event,
+                                               double  dataDouble,
+                                               int64_t dataLong) {
+    AAudioServiceMessage command;
+    command.what = AAudioServiceMessage::code::EVENT;
+    command.event.event = event;
+    command.event.dataDouble = dataDouble;
+    command.event.dataLong = dataLong;
+    return writeUpMessageQueue(&command);
+}
+
+aaudio_result_t AAudioServiceStreamBase::writeUpMessageQueue(AAudioServiceMessage *command) {
+    std::lock_guard<std::mutex> lock(mLockUpMessageQueue);
+    if (mUpMessageQueue == nullptr) {
+        ALOGE("writeUpMessageQueue(): mUpMessageQueue null! - stream not open");
+        return AAUDIO_ERROR_NULL;
+    }
+    int32_t count = mUpMessageQueue->getFifoBuffer()->write(command, 1);
+    if (count != 1) {
+        ALOGE("writeUpMessageQueue(): Queue full. Did client die?");
+        return AAUDIO_ERROR_WOULD_BLOCK;
+    } else {
+        return AAUDIO_OK;
+    }
+}
+
+aaudio_result_t AAudioServiceStreamBase::sendCurrentTimestamp() {
+    AAudioServiceMessage command;
+    aaudio_result_t result = getFreeRunningPosition(&command.timestamp.position,
+                                                    &command.timestamp.timestamp);
+    if (result == AAUDIO_OK) {
+    //    ALOGD("sendCurrentTimestamp(): position = %lld, nanos = %lld",
+    //          (long long) command.timestamp.position,
+    //          (long long) command.timestamp.timestamp);
+        command.what = AAudioServiceMessage::code::TIMESTAMP;
+        result = writeUpMessageQueue(&command);
+    }
+    return result;
+}
+
+/**
+ * Get an immutable description of the in-memory queues
+ * used to communicate with the underlying HAL or Service.
+ */
+aaudio_result_t AAudioServiceStreamBase::getDescription(AudioEndpointParcelable &parcelable) {
+    // Gather information on the message queue.
+    mUpMessageQueue->fillParcelable(parcelable,
+                                    parcelable.mUpMessageQueueParcelable);
+    return getDownDataDescription(parcelable);
+}
\ No newline at end of file
diff --git a/services/oboeservice/AAudioServiceStreamBase.h b/services/oboeservice/AAudioServiceStreamBase.h
new file mode 100644
index 0000000..ee52c39
--- /dev/null
+++ b/services/oboeservice/AAudioServiceStreamBase.h
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_SERVICE_STREAM_BASE_H
+#define AAUDIO_AAUDIO_SERVICE_STREAM_BASE_H
+
+#include <assert.h>
+#include <mutex>
+
+#include "fifo/FifoBuffer.h"
+#include "binding/IAAudioService.h"
+#include "binding/AudioEndpointParcelable.h"
+#include "binding/AAudioServiceMessage.h"
+#include "utility/AAudioUtilities.h"
+
+#include "SharedRingBuffer.h"
+#include "AAudioThread.h"
+
+namespace aaudio {
+
+// We expect the queue to only have a few commands.
+// This should be way more than we need.
+#define QUEUE_UP_CAPACITY_COMMANDS (128)
+
+/**
+ * Base class for a stream in the AAudio service.
+ */
+class AAudioServiceStreamBase
+    : public Runnable  {
+
+public:
+    AAudioServiceStreamBase();
+    virtual ~AAudioServiceStreamBase();
+
+    enum {
+        ILLEGAL_THREAD_ID = 0
+    };
+
+    // -------------------------------------------------------------------
+    /**
+     * Open the device.
+     */
+    virtual aaudio_result_t open(const aaudio::AAudioStreamRequest &request,
+                                 aaudio::AAudioStreamConfiguration &configurationOutput) = 0;
+
+    virtual aaudio_result_t close();
+
+    /**
+     * Start the flow of data.
+     */
+    virtual aaudio_result_t start();
+
+    /**
+     * Stop the flow of data such that start() can resume with loss of data.
+     */
+    virtual aaudio_result_t pause();
+
+    /**
+     * Stop the flow of data after data in buffer has played.
+     */
+    virtual aaudio_result_t stop();
+
+    /**
+     *  Discard any data held by the underlying HAL or Service.
+     */
+    virtual aaudio_result_t flush();
+
+    // -------------------------------------------------------------------
+
+    /**
+     * Send a message to the client.
+     */
+    aaudio_result_t sendServiceEvent(aaudio_service_event_t event,
+                                     double  dataDouble = 0.0,
+                                     int64_t dataLong = 0);
+
+    /**
+     * Fill in a parcelable description of stream.
+     */
+    aaudio_result_t getDescription(AudioEndpointParcelable &parcelable);
+
+
+    void setRegisteredThread(pid_t pid) {
+        mRegisteredClientThread = pid;
+    }
+
+    pid_t getRegisteredThread() const {
+        return mRegisteredClientThread;
+    }
+
+    int32_t getFramesPerBurst() const {
+        return mFramesPerBurst;
+    }
+
+    int32_t calculateBytesPerFrame() const {
+        return mSamplesPerFrame * AAudioConvert_formatToSizeInBytes(mAudioFormat);
+    }
+
+    void run() override; // to implement Runnable
+
+    void processError();
+
+protected:
+    aaudio_result_t writeUpMessageQueue(AAudioServiceMessage *command);
+
+    aaudio_result_t sendCurrentTimestamp();
+
+    virtual aaudio_result_t getFreeRunningPosition(int64_t *positionFrames, int64_t *timeNanos) = 0;
+
+    virtual aaudio_result_t getDownDataDescription(AudioEndpointParcelable &parcelable) = 0;
+
+    aaudio_stream_state_t               mState = AAUDIO_STREAM_STATE_UNINITIALIZED;
+
+    pid_t              mRegisteredClientThread = ILLEGAL_THREAD_ID;
+
+    SharedRingBuffer*  mUpMessageQueue;
+    std::mutex         mLockUpMessageQueue;
+
+    AAudioThread        mAAudioThread;
+    // This is used by one thread to tell another thread to exit. So it must be atomic.
+    std::atomic<bool>   mThreadEnabled;
+
+    aaudio_format_t    mAudioFormat = AAUDIO_FORMAT_UNSPECIFIED;
+    int32_t            mFramesPerBurst = 0;
+    int32_t            mSamplesPerFrame = AAUDIO_UNSPECIFIED;
+    int32_t            mSampleRate = AAUDIO_UNSPECIFIED;
+    int32_t            mCapacityInFrames = AAUDIO_UNSPECIFIED;
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_AAUDIO_SERVICE_STREAM_BASE_H
diff --git a/services/oboeservice/AAudioServiceStreamExclusive.h b/services/oboeservice/AAudioServiceStreamExclusive.h
new file mode 100644
index 0000000..db382a3
--- /dev/null
+++ b/services/oboeservice/AAudioServiceStreamExclusive.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_SERVICE_STREAM_EXCLUSIVE_H
+#define AAUDIO_AAUDIO_SERVICE_STREAM_EXCLUSIVE_H
+
+#include "AAudioServiceStreamMMAP.h"
+
+namespace aaudio {
+
+/**
+ * Exclusive mode stream in the AAudio service.
+ *
+ * This is currently a stub.
+ * We may move code from AAudioServiceStreamMMAP into this class.
+ * If not, then it will be removed.
+ */
+class AAudioServiceStreamExclusive : public AAudioServiceStreamMMAP {
+
+public:
+    AAudioServiceStreamExclusive() {};
+    virtual ~AAudioServiceStreamExclusive() = default;
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_AAUDIO_SERVICE_STREAM_EXCLUSIVE_H
diff --git a/services/oboeservice/AAudioServiceStreamMMAP.cpp b/services/oboeservice/AAudioServiceStreamMMAP.cpp
new file mode 100644
index 0000000..97b9937
--- /dev/null
+++ b/services/oboeservice/AAudioServiceStreamMMAP.cpp
@@ -0,0 +1,298 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <atomic>
+#include <stdint.h>
+
+#include <utils/String16.h>
+#include <media/nbaio/AudioStreamOutSink.h>
+#include <media/MmapStreamInterface.h>
+
+#include "AAudioServiceStreamBase.h"
+#include "AAudioServiceStreamMMAP.h"
+#include "binding/AudioEndpointParcelable.h"
+#include "SharedMemoryProxy.h"
+#include "utility/AAudioUtilities.h"
+
+using namespace android;
+using namespace aaudio;
+
+#define AAUDIO_BUFFER_CAPACITY_MIN    4 * 512
+#define AAUDIO_SAMPLE_RATE_DEFAULT    48000
+
+/**
+ * Stream that uses an MMAP buffer.
+ */
+
+AAudioServiceStreamMMAP::AAudioServiceStreamMMAP()
+        : AAudioServiceStreamBase()
+        , mMmapStreamCallback(new MyMmapStreamCallback(*this))
+        , mPreviousFrameCounter(0)
+        , mMmapStream(nullptr) {
+}
+
+AAudioServiceStreamMMAP::~AAudioServiceStreamMMAP() {
+    close();
+}
+
+aaudio_result_t AAudioServiceStreamMMAP::close() {
+    mMmapStream.clear(); // TODO review. Is that all we have to do?
+    // Apparently the above close is asynchronous. An attempt to open a new device
+    // right after a close can fail. Also some callbacks may still be in flight!
+    // FIXME Make closing synchronous.
+    AudioClock::sleepForNanos(100 * AAUDIO_NANOS_PER_MILLISECOND);
+
+    if (mAudioDataFileDescriptor != -1) {
+        ::close(mAudioDataFileDescriptor);
+        mAudioDataFileDescriptor = -1;
+    }
+
+    return AAudioServiceStreamBase::close();
+}
+
+// Open stream on HAL and pass information about the shared memory buffer back to the client.
+aaudio_result_t AAudioServiceStreamMMAP::open(const aaudio::AAudioStreamRequest &request,
+                                       aaudio::AAudioStreamConfiguration &configurationOutput) {
+    const audio_attributes_t attributes = {
+        .content_type = AUDIO_CONTENT_TYPE_MUSIC,
+        .usage = AUDIO_USAGE_MEDIA,
+        .source = AUDIO_SOURCE_VOICE_RECOGNITION,
+        .flags = AUDIO_FLAG_LOW_LATENCY,
+        .tags = ""
+    };
+    audio_config_base_t config;
+
+    aaudio_result_t result = AAudioServiceStreamBase::open(request, configurationOutput);
+    if (result != AAUDIO_OK) {
+        ALOGE("AAudioServiceStreamBase open returned %d", result);
+        return result;
+    }
+
+    const AAudioStreamConfiguration &configurationInput = request.getConstantConfiguration();
+    audio_port_handle_t deviceId = configurationInput.getDeviceId();
+
+    mMmapClient.clientUid = request.getUserId();
+    mMmapClient.clientPid = request.getProcessId();
+    aaudio_direction_t direction = request.getDirection();
+
+    // Fill in config
+    aaudio_format_t aaudioFormat = configurationInput.getAudioFormat();
+    if (aaudioFormat == AAUDIO_UNSPECIFIED || aaudioFormat == AAUDIO_FORMAT_PCM_FLOAT) {
+        aaudioFormat = AAUDIO_FORMAT_PCM_I16;
+    }
+    config.format = AAudioConvert_aaudioToAndroidDataFormat(aaudioFormat);
+
+    int32_t aaudioSampleRate = configurationInput.getSampleRate();
+    if (aaudioSampleRate == AAUDIO_UNSPECIFIED) {
+        aaudioSampleRate = AAUDIO_SAMPLE_RATE_DEFAULT;
+    }
+    config.sample_rate = aaudioSampleRate;
+
+    int32_t aaudioSamplesPerFrame = configurationInput.getSamplesPerFrame();
+
+    if (direction == AAUDIO_DIRECTION_OUTPUT) {
+        config.channel_mask = (aaudioSamplesPerFrame == AAUDIO_UNSPECIFIED)
+                            ? AUDIO_CHANNEL_OUT_STEREO
+                            : audio_channel_out_mask_from_count(aaudioSamplesPerFrame);
+    } else if (direction == AAUDIO_DIRECTION_INPUT) {
+        config.channel_mask =  (aaudioSamplesPerFrame == AAUDIO_UNSPECIFIED)
+                            ? AUDIO_CHANNEL_IN_STEREO
+                            : audio_channel_in_mask_from_count(aaudioSamplesPerFrame);
+    } else {
+        ALOGE("openMmapStream - invalid direction = %d", direction);
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    }
+
+    mMmapClient.packageName.setTo(String16("aaudio_service")); // FIXME what should we do here?
+
+    MmapStreamInterface::stream_direction_t streamDirection = (direction == AAUDIO_DIRECTION_OUTPUT)
+        ? MmapStreamInterface::DIRECTION_OUTPUT : MmapStreamInterface::DIRECTION_INPUT;
+
+    // Open HAL stream.
+    status_t status = MmapStreamInterface::openMmapStream(streamDirection,
+                                                          &attributes,
+                                                          &config,
+                                                          mMmapClient,
+                                                          &deviceId,
+                                                          mMmapStreamCallback,
+                                                          mMmapStream);
+    if (status != OK) {
+        ALOGE("openMmapStream returned status %d", status);
+        return AAUDIO_ERROR_UNAVAILABLE;
+    }
+
+    // Create MMAP/NOIRQ buffer.
+    int32_t minSizeFrames = configurationInput.getBufferCapacity();
+    if (minSizeFrames == 0) { // zero will get rejected
+        minSizeFrames = AAUDIO_BUFFER_CAPACITY_MIN;
+    }
+    status = mMmapStream->createMmapBuffer(minSizeFrames, &mMmapBufferinfo);
+    if (status != OK) {
+        ALOGE("%s: createMmapBuffer() returned status %d, return AAUDIO_ERROR_UNAVAILABLE",
+              __FILE__, status);
+        return AAUDIO_ERROR_UNAVAILABLE;
+    } else {
+        ALOGD("createMmapBuffer status %d shared_address = %p buffer_size %d burst_size %d",
+              status, mMmapBufferinfo.shared_memory_address,
+              mMmapBufferinfo.buffer_size_frames,
+              mMmapBufferinfo.burst_size_frames);
+    }
+
+    // Get information about the stream and pass it back to the caller.
+    mSamplesPerFrame = (direction == AAUDIO_DIRECTION_OUTPUT)
+                           ? audio_channel_count_from_out_mask(config.channel_mask)
+                           : audio_channel_count_from_in_mask(config.channel_mask);
+
+    mAudioDataFileDescriptor = mMmapBufferinfo.shared_memory_fd;
+    mFramesPerBurst = mMmapBufferinfo.burst_size_frames;
+    mCapacityInFrames = mMmapBufferinfo.buffer_size_frames;
+    mAudioFormat = AAudioConvert_androidToAAudioDataFormat(config.format);
+    mSampleRate = config.sample_rate;
+
+    // Scale up the burst size to meet the minimum equivalent in microseconds.
+    // This is to avoid waking the CPU too often when the HW burst is very small
+    // or at high sample rates.
+    int32_t burstMinMicros = AAudioProperty_getHardwareBurstMinMicros();
+    int32_t burstMicros = 0;
+    do {
+        if (burstMicros > 0) {  // skip first loop
+            mFramesPerBurst *= 2;
+        }
+        burstMicros = mFramesPerBurst * static_cast<int64_t>(1000000) / mSampleRate;
+    } while (burstMicros < burstMinMicros);
+
+    ALOGD("AAudioServiceStreamMMAP::open() original burst = %d, minMicros = %d, final burst = %d\n",
+          mMmapBufferinfo.burst_size_frames, burstMinMicros, mFramesPerBurst);
+
+    // Fill in AAudioStreamConfiguration
+    configurationOutput.setSampleRate(mSampleRate);
+    configurationOutput.setSamplesPerFrame(mSamplesPerFrame);
+    configurationOutput.setAudioFormat(mAudioFormat);
+    configurationOutput.setDeviceId(deviceId);
+
+    return AAUDIO_OK;
+}
+
+/**
+ * Start the flow of data.
+ */
+aaudio_result_t AAudioServiceStreamMMAP::start() {
+    if (mMmapStream == nullptr) return AAUDIO_ERROR_NULL;
+    aaudio_result_t result;
+    status_t status = mMmapStream->start(mMmapClient, &mPortHandle);
+    if (status != OK) {
+        ALOGE("AAudioServiceStreamMMAP::start() mMmapStream->start() returned %d", status);
+        processError();
+        result = AAudioConvert_androidToAAudioResult(status);
+    } else {
+        result = AAudioServiceStreamBase::start();
+    }
+    return result;
+}
+
+/**
+ * Stop the flow of data such that start() can resume with loss of data.
+ */
+aaudio_result_t AAudioServiceStreamMMAP::pause() {
+    if (mMmapStream == nullptr) return AAUDIO_ERROR_NULL;
+
+    aaudio_result_t result1 = AAudioServiceStreamBase::pause();
+    status_t status = mMmapStream->stop(mPortHandle);
+    mFramesRead.reset32();
+    return (result1 != AAUDIO_OK) ? result1 : AAudioConvert_androidToAAudioResult(status);
+}
+
+aaudio_result_t AAudioServiceStreamMMAP::stop() {
+    if (mMmapStream == nullptr) return AAUDIO_ERROR_NULL;
+
+    aaudio_result_t result1 = AAudioServiceStreamBase::stop();
+    aaudio_result_t status = mMmapStream->stop(mPortHandle);
+    mFramesRead.reset32();
+    return (result1 != AAUDIO_OK) ? result1 :  AAudioConvert_androidToAAudioResult(status);
+}
+
+/**
+ *  Discard any data held by the underlying HAL or Service.
+ */
+aaudio_result_t AAudioServiceStreamMMAP::flush() {
+    if (mMmapStream == nullptr) return AAUDIO_ERROR_NULL;
+    // TODO how do we flush an MMAP/NOIRQ buffer? sync pointers?
+    sendServiceEvent(AAUDIO_SERVICE_EVENT_FLUSHED);
+    mState = AAUDIO_STREAM_STATE_FLUSHED;
+    return AAudioServiceStreamBase::flush();;
+}
+
+
+aaudio_result_t AAudioServiceStreamMMAP::getFreeRunningPosition(int64_t *positionFrames,
+                                                                int64_t *timeNanos) {
+    struct audio_mmap_position position;
+    if (mMmapStream == nullptr) {
+        processError();
+        return AAUDIO_ERROR_NULL;
+    }
+    status_t status = mMmapStream->getMmapPosition(&position);
+    if (status != OK) {
+        ALOGE("sendCurrentTimestamp(): getMmapPosition() returned %d", status);
+        processError();
+        return AAudioConvert_androidToAAudioResult(status);
+    } else {
+        mFramesRead.update32(position.position_frames);
+        *positionFrames = mFramesRead.get();
+        *timeNanos = position.time_nanoseconds;
+    }
+    return AAUDIO_OK;
+}
+
+void AAudioServiceStreamMMAP::onTearDown() {
+    ALOGE("AAudioServiceStreamMMAP::onTearDown() called - TODO");
+};
+
+void AAudioServiceStreamMMAP::onVolumeChanged(audio_channel_mask_t channels,
+                     android::Vector<float> values) {
+    // TODO do we really need a different volume for each channel?
+    float volume = values[0];
+    ALOGD("AAudioServiceStreamMMAP::onVolumeChanged() volume[0] = %f", volume);
+    sendServiceEvent(AAUDIO_SERVICE_EVENT_VOLUME, volume);
+};
+
+void AAudioServiceStreamMMAP::onRoutingChanged(audio_port_handle_t deviceId) {
+    ALOGD("AAudioServiceStreamMMAP::onRoutingChanged() called with %d, old = %d",
+          deviceId, mPortHandle);
+    if (mPortHandle > 0 && mPortHandle != deviceId) {
+        sendServiceEvent(AAUDIO_SERVICE_EVENT_DISCONNECTED);
+    }
+    mPortHandle = deviceId;
+};
+
+/**
+ * Get an immutable description of the data queue from the HAL.
+ */
+aaudio_result_t AAudioServiceStreamMMAP::getDownDataDescription(AudioEndpointParcelable &parcelable)
+{
+    // Gather information on the data queue based on HAL info.
+    int32_t bytesPerFrame = calculateBytesPerFrame();
+    int32_t capacityInBytes = mCapacityInFrames * bytesPerFrame;
+    int fdIndex = parcelable.addFileDescriptor(mAudioDataFileDescriptor, capacityInBytes);
+    parcelable.mDownDataQueueParcelable.setupMemory(fdIndex, 0, capacityInBytes);
+    parcelable.mDownDataQueueParcelable.setBytesPerFrame(bytesPerFrame);
+    parcelable.mDownDataQueueParcelable.setFramesPerBurst(mFramesPerBurst);
+    parcelable.mDownDataQueueParcelable.setCapacityInFrames(mCapacityInFrames);
+    return AAUDIO_OK;
+}
\ No newline at end of file
diff --git a/services/oboeservice/AAudioServiceStreamMMAP.h b/services/oboeservice/AAudioServiceStreamMMAP.h
new file mode 100644
index 0000000..fe75a10
--- /dev/null
+++ b/services/oboeservice/AAudioServiceStreamMMAP.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_SERVICE_STREAM_MMAP_H
+#define AAUDIO_AAUDIO_SERVICE_STREAM_MMAP_H
+
+#include <atomic>
+
+#include <media/audiohal/StreamHalInterface.h>
+#include <media/MmapStreamCallback.h>
+#include <media/MmapStreamInterface.h>
+#include <utils/RefBase.h>
+#include <utils/String16.h>
+#include <utils/Vector.h>
+
+#include "binding/AAudioServiceMessage.h"
+#include "AAudioServiceStreamBase.h"
+#include "binding/AudioEndpointParcelable.h"
+#include "SharedMemoryProxy.h"
+#include "TimestampScheduler.h"
+#include "utility/MonotonicCounter.h"
+
+namespace aaudio {
+
+    /**
+     * Manage one memory mapped buffer that originated from a HAL.
+     */
+class AAudioServiceStreamMMAP
+    : public AAudioServiceStreamBase
+    , public android::MmapStreamCallback {
+
+public:
+    AAudioServiceStreamMMAP();
+    virtual ~AAudioServiceStreamMMAP();
+
+
+    aaudio_result_t open(const aaudio::AAudioStreamRequest &request,
+                                 aaudio::AAudioStreamConfiguration &configurationOutput) override;
+
+    /**
+     * Start the flow of audio data.
+     *
+     * This is not guaranteed to be synchronous but it currently is.
+     * An AAUDIO_SERVICE_EVENT_STARTED will be sent to the client when complete.
+     */
+    aaudio_result_t start() override;
+
+    /**
+     * Stop the flow of data so that start() can resume without loss of data.
+     *
+     * This is not guaranteed to be synchronous but it currently is.
+     * An AAUDIO_SERVICE_EVENT_PAUSED will be sent to the client when complete.
+    */
+    aaudio_result_t pause() override;
+
+    aaudio_result_t stop() override;
+
+    /**
+     *  Discard any data held by the underlying HAL or Service.
+     *
+     * This is not guaranteed to be synchronous but it currently is.
+     * An AAUDIO_SERVICE_EVENT_FLUSHED will be sent to the client when complete.
+     */
+    aaudio_result_t flush() override;
+
+    aaudio_result_t close() override;
+
+    /**
+     * Send a MMAP/NOIRQ buffer timestamp to the client.
+     */
+    aaudio_result_t sendCurrentTimestamp();
+
+    // -------------- Callback functions ---------------------
+    void onTearDown() override;
+
+    void onVolumeChanged(audio_channel_mask_t channels,
+                         android::Vector<float> values) override;
+
+    void onRoutingChanged(audio_port_handle_t deviceId) override;
+
+protected:
+
+    aaudio_result_t getDownDataDescription(AudioEndpointParcelable &parcelable) override;
+
+    aaudio_result_t getFreeRunningPosition(int64_t *positionFrames, int64_t *timeNanos) override;
+
+private:
+    // This proxy class was needed to prevent a crash in AudioFlinger
+    // when the stream was closed.
+    class MyMmapStreamCallback : public android::MmapStreamCallback {
+    public:
+        explicit MyMmapStreamCallback(android::MmapStreamCallback &serviceCallback)
+            : mServiceCallback(serviceCallback){}
+        virtual ~MyMmapStreamCallback() = default;
+
+        void onTearDown() override {
+            mServiceCallback.onTearDown();
+        };
+
+        void onVolumeChanged(audio_channel_mask_t channels, android::Vector<float> values) override
+        {
+            mServiceCallback.onVolumeChanged(channels, values);
+        };
+
+        void onRoutingChanged(audio_port_handle_t deviceId) override {
+            mServiceCallback.onRoutingChanged(deviceId);
+        };
+
+    private:
+        android::MmapStreamCallback &mServiceCallback;
+    };
+
+    android::sp<MyMmapStreamCallback>   mMmapStreamCallback;
+    MonotonicCounter                    mFramesWritten;
+    MonotonicCounter                    mFramesRead;
+    int32_t                             mPreviousFrameCounter = 0;   // from HAL
+    int                                 mAudioDataFileDescriptor = -1;
+
+    // Interface to the AudioFlinger MMAP support.
+    android::sp<android::MmapStreamInterface> mMmapStream;
+    struct audio_mmap_buffer_info             mMmapBufferinfo;
+    android::MmapStreamInterface::Client      mMmapClient;
+    audio_port_handle_t                       mPortHandle = -1; // TODO review best default
+};
+
+} // namespace aaudio
+
+#endif //AAUDIO_AAUDIO_SERVICE_STREAM_MMAP_H
diff --git a/services/oboeservice/AAudioServiceStreamShared.cpp b/services/oboeservice/AAudioServiceStreamShared.cpp
new file mode 100644
index 0000000..494b18e
--- /dev/null
+++ b/services/oboeservice/AAudioServiceStreamShared.cpp
@@ -0,0 +1,240 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <mutex>
+
+#include <aaudio/AAudio.h>
+
+#include "binding/IAAudioService.h"
+
+#include "binding/AAudioServiceMessage.h"
+#include "AAudioServiceStreamBase.h"
+#include "AAudioServiceStreamShared.h"
+#include "AAudioEndpointManager.h"
+#include "AAudioService.h"
+#include "AAudioServiceEndpoint.h"
+
+using namespace android;
+using namespace aaudio;
+
+#define MIN_BURSTS_PER_BUFFER   2
+#define MAX_BURSTS_PER_BUFFER   32
+
+AAudioServiceStreamShared::AAudioServiceStreamShared(AAudioService &audioService)
+    : mAudioService(audioService)
+    {
+}
+
+AAudioServiceStreamShared::~AAudioServiceStreamShared() {
+    close();
+}
+
+aaudio_result_t AAudioServiceStreamShared::open(const aaudio::AAudioStreamRequest &request,
+                     aaudio::AAudioStreamConfiguration &configurationOutput)  {
+
+    aaudio_result_t result = AAudioServiceStreamBase::open(request, configurationOutput);
+    if (result != AAUDIO_OK) {
+        ALOGE("AAudioServiceStreamBase open returned %d", result);
+        return result;
+    }
+
+    const AAudioStreamConfiguration &configurationInput = request.getConstantConfiguration();
+    int32_t deviceId = configurationInput.getDeviceId();
+    aaudio_direction_t direction = request.getDirection();
+
+    AAudioEndpointManager &mEndpointManager = AAudioEndpointManager::getInstance();
+    mServiceEndpoint = mEndpointManager.openEndpoint(mAudioService, deviceId, direction);
+    if (mServiceEndpoint == nullptr) {
+        ALOGE("AAudioServiceStreamShared::open(), mServiceEndPoint = %p", mServiceEndpoint);
+        return AAUDIO_ERROR_UNAVAILABLE;
+    }
+
+    // Is the request compatible with the shared endpoint?
+    mAudioFormat = configurationInput.getAudioFormat();
+    if (mAudioFormat == AAUDIO_FORMAT_UNSPECIFIED) {
+        mAudioFormat = AAUDIO_FORMAT_PCM_FLOAT;
+    } else if (mAudioFormat != AAUDIO_FORMAT_PCM_FLOAT) {
+        ALOGE("AAudioServiceStreamShared::open(), mAudioFormat = %d, need FLOAT", mAudioFormat);
+        return AAUDIO_ERROR_INVALID_FORMAT;
+    }
+
+    mSampleRate = configurationInput.getSampleRate();
+    if (mSampleRate == AAUDIO_UNSPECIFIED) {
+        mSampleRate = mServiceEndpoint->getSampleRate();
+    } else if (mSampleRate != mServiceEndpoint->getSampleRate()) {
+        ALOGE("AAudioServiceStreamShared::open(), mAudioFormat = %d, need %d",
+              mSampleRate, mServiceEndpoint->getSampleRate());
+        return AAUDIO_ERROR_INVALID_RATE;
+    }
+
+    mSamplesPerFrame = configurationInput.getSamplesPerFrame();
+    if (mSamplesPerFrame == AAUDIO_UNSPECIFIED) {
+        mSamplesPerFrame = mServiceEndpoint->getSamplesPerFrame();
+    } else if (mSamplesPerFrame != mServiceEndpoint->getSamplesPerFrame()) {
+        ALOGE("AAudioServiceStreamShared::open(), mSamplesPerFrame = %d, need %d",
+              mSamplesPerFrame, mServiceEndpoint->getSamplesPerFrame());
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+
+    // Determine this stream's shared memory buffer capacity.
+    mFramesPerBurst = mServiceEndpoint->getFramesPerBurst();
+    int32_t minCapacityFrames = configurationInput.getBufferCapacity();
+    int32_t numBursts = MAX_BURSTS_PER_BUFFER;
+    if (minCapacityFrames != AAUDIO_UNSPECIFIED) {
+        numBursts = (minCapacityFrames + mFramesPerBurst - 1) / mFramesPerBurst;
+        if (numBursts < MIN_BURSTS_PER_BUFFER) {
+            numBursts = MIN_BURSTS_PER_BUFFER;
+        } else if (numBursts > MAX_BURSTS_PER_BUFFER) {
+            numBursts = MAX_BURSTS_PER_BUFFER;
+        }
+    }
+    mCapacityInFrames = numBursts * mFramesPerBurst;
+    ALOGD("AAudioServiceStreamShared::open(), mCapacityInFrames = %d", mCapacityInFrames);
+
+    // Create audio data shared memory buffer for client.
+    mAudioDataQueue = new SharedRingBuffer();
+    mAudioDataQueue->allocate(calculateBytesPerFrame(), mCapacityInFrames);
+
+    // Fill in configuration for client.
+    configurationOutput.setSampleRate(mSampleRate);
+    configurationOutput.setSamplesPerFrame(mSamplesPerFrame);
+    configurationOutput.setAudioFormat(mAudioFormat);
+    configurationOutput.setDeviceId(deviceId);
+
+    mServiceEndpoint->registerStream(this);
+
+    return AAUDIO_OK;
+}
+
+/**
+ * Start the flow of audio data.
+ *
+ * An AAUDIO_SERVICE_EVENT_STARTED will be sent to the client when complete.
+ */
+aaudio_result_t AAudioServiceStreamShared::start()  {
+    AAudioServiceEndpoint *endpoint = mServiceEndpoint;
+    if (endpoint == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    // For output streams, this will add the stream to the mixer.
+    aaudio_result_t result = endpoint->startStream(this);
+    if (result != AAUDIO_OK) {
+        ALOGE("AAudioServiceStreamShared::start() mServiceEndpoint returned %d", result);
+        processError();
+    } else {
+        result = AAudioServiceStreamBase::start();
+    }
+    return AAUDIO_OK;
+}
+
+/**
+ * Stop the flow of data so that start() can resume without loss of data.
+ *
+ * An AAUDIO_SERVICE_EVENT_PAUSED will be sent to the client when complete.
+*/
+aaudio_result_t AAudioServiceStreamShared::pause()  {
+    AAudioServiceEndpoint *endpoint = mServiceEndpoint;
+    if (endpoint == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    // Add this stream to the mixer.
+    aaudio_result_t result = endpoint->stopStream(this);
+    if (result != AAUDIO_OK) {
+        ALOGE("AAudioServiceStreamShared::pause() mServiceEndpoint returned %d", result);
+        processError();
+    }
+    return AAudioServiceStreamBase::pause();
+}
+
+aaudio_result_t AAudioServiceStreamShared::stop()  {
+    AAudioServiceEndpoint *endpoint = mServiceEndpoint;
+    if (endpoint == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    // Add this stream to the mixer.
+    aaudio_result_t result = endpoint->stopStream(this);
+    if (result != AAUDIO_OK) {
+        ALOGE("AAudioServiceStreamShared::stop() mServiceEndpoint returned %d", result);
+        processError();
+    }
+    return AAudioServiceStreamBase::stop();
+}
+
+/**
+ *  Discard any data held by the underlying HAL or Service.
+ *
+ * An AAUDIO_SERVICE_EVENT_FLUSHED will be sent to the client when complete.
+ */
+aaudio_result_t AAudioServiceStreamShared::flush()  {
+    // TODO make sure we are paused
+    // TODO actually flush the data
+    return AAudioServiceStreamBase::flush() ;
+}
+
+aaudio_result_t AAudioServiceStreamShared::close()  {
+    pause();
+    // TODO wait for pause() to synchronize
+    AAudioServiceEndpoint *endpoint = mServiceEndpoint;
+    if (endpoint != nullptr) {
+        endpoint->unregisterStream(this);
+
+        AAudioEndpointManager &mEndpointManager = AAudioEndpointManager::getInstance();
+        mEndpointManager.closeEndpoint(endpoint);
+        mServiceEndpoint = nullptr;
+    }
+    if (mAudioDataQueue != nullptr) {
+        delete mAudioDataQueue;
+        mAudioDataQueue = nullptr;
+    }
+    return AAudioServiceStreamBase::close();
+}
+
+/**
+ * Get an immutable description of the data queue created by this service.
+ */
+aaudio_result_t AAudioServiceStreamShared::getDownDataDescription(AudioEndpointParcelable &parcelable)
+{
+    // Gather information on the data queue.
+    mAudioDataQueue->fillParcelable(parcelable,
+                                    parcelable.mDownDataQueueParcelable);
+    parcelable.mDownDataQueueParcelable.setFramesPerBurst(getFramesPerBurst());
+    return AAUDIO_OK;
+}
+
+void AAudioServiceStreamShared::onStop() {
+}
+
+void AAudioServiceStreamShared::onDisconnect() {
+    mServiceEndpoint->close();
+    mServiceEndpoint = nullptr;
+}
+
+void AAudioServiceStreamShared::markTransferTime(int64_t nanoseconds) {
+    mMarkedPosition = mAudioDataQueue->getFifoBuffer()->getReadCounter();
+    mMarkedTime = nanoseconds;
+}
+
+aaudio_result_t AAudioServiceStreamShared::getFreeRunningPosition(int64_t *positionFrames,
+                                                                int64_t *timeNanos) {
+    // TODO get these two numbers as an atomic pair
+    *positionFrames = mMarkedPosition;
+    *timeNanos = mMarkedTime;
+    return AAUDIO_OK;
+}
diff --git a/services/oboeservice/AAudioServiceStreamShared.h b/services/oboeservice/AAudioServiceStreamShared.h
new file mode 100644
index 0000000..dfdbbb3
--- /dev/null
+++ b/services/oboeservice/AAudioServiceStreamShared.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_SERVICE_STREAM_SHARED_H
+#define AAUDIO_AAUDIO_SERVICE_STREAM_SHARED_H
+
+#include "fifo/FifoBuffer.h"
+#include "binding/AAudioServiceMessage.h"
+#include "binding/AAudioStreamRequest.h"
+#include "binding/AAudioStreamConfiguration.h"
+
+#include "AAudioService.h"
+#include "AAudioServiceStreamBase.h"
+
+namespace aaudio {
+
+// We expect the queue to only have a few commands.
+// This should be way more than we need.
+#define QUEUE_UP_CAPACITY_COMMANDS (128)
+
+class AAudioEndpointManager;
+class AAudioServiceEndpoint;
+class SharedRingBuffer;
+
+/**
+ * One of these is created for every MODE_SHARED stream in the AAudioService.
+ *
+ * Each Shared stream will register itself with an AAudioServiceEndpoint when it is opened.
+ */
+class AAudioServiceStreamShared : public AAudioServiceStreamBase {
+
+public:
+    AAudioServiceStreamShared(android::AAudioService &aAudioService);
+    virtual ~AAudioServiceStreamShared();
+
+    aaudio_result_t open(const aaudio::AAudioStreamRequest &request,
+                         aaudio::AAudioStreamConfiguration &configurationOutput) override;
+
+    /**
+     * Start the flow of audio data.
+     *
+     * This is not guaranteed to be synchronous but it currently is.
+     * An AAUDIO_SERVICE_EVENT_STARTED will be sent to the client when complete.
+     */
+    aaudio_result_t start() override;
+
+    /**
+     * Stop the flow of data so that start() can resume without loss of data.
+     *
+     * This is not guaranteed to be synchronous but it currently is.
+     * An AAUDIO_SERVICE_EVENT_PAUSED will be sent to the client when complete.
+    */
+    aaudio_result_t pause() override;
+
+    /**
+     * Stop the flow of data after data in buffer has played.
+     */
+    aaudio_result_t stop() override;
+
+    /**
+     *  Discard any data held by the underlying HAL or Service.
+     *
+     * This is not guaranteed to be synchronous but it currently is.
+     * An AAUDIO_SERVICE_EVENT_FLUSHED will be sent to the client when complete.
+     */
+    aaudio_result_t flush() override;
+
+    aaudio_result_t close() override;
+
+    android::FifoBuffer *getDataFifoBuffer() { return mAudioDataQueue->getFifoBuffer(); }
+
+    /* Keep a record of when a buffer transfer completed.
+     * This allows for a more accurate timing model.
+     */
+    void markTransferTime(int64_t nanoseconds);
+
+    void onStop();
+
+    void onDisconnect();
+
+protected:
+
+    aaudio_result_t getDownDataDescription(AudioEndpointParcelable &parcelable) override;
+
+    aaudio_result_t getFreeRunningPosition(int64_t *positionFrames, int64_t *timeNanos) override;
+
+private:
+    android::AAudioService  &mAudioService;
+    AAudioServiceEndpoint   *mServiceEndpoint = nullptr;
+    SharedRingBuffer        *mAudioDataQueue = nullptr;
+
+    int64_t                  mMarkedPosition = 0;
+    int64_t                  mMarkedTime = 0;
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_AAUDIO_SERVICE_STREAM_SHARED_H
diff --git a/services/oboeservice/AAudioThread.cpp b/services/oboeservice/AAudioThread.cpp
new file mode 100644
index 0000000..ebb50f8
--- /dev/null
+++ b/services/oboeservice/AAudioThread.cpp
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <pthread.h>
+
+#include <aaudio/AAudio.h>
+#include <utility/AAudioUtilities.h>
+
+#include "AAudioThread.h"
+
+using namespace aaudio;
+
+
+AAudioThread::AAudioThread()
+    : mRunnable(nullptr)
+    , mHasThread(false) {
+    // mThread is a pthread_t of unknown size so we need memset().
+    memset(&mThread, 0, sizeof(mThread));
+}
+
+void AAudioThread::dispatch() {
+    if (mRunnable != nullptr) {
+        mRunnable->run();
+    } else {
+        run();
+    }
+}
+
+// This is the entry point for the new thread created by createThread().
+// It converts the 'C' function call to a C++ method call.
+static void * AAudioThread_internalThreadProc(void *arg) {
+    AAudioThread *aaudioThread = (AAudioThread *) arg;
+    aaudioThread->dispatch();
+    return nullptr;
+}
+
+aaudio_result_t AAudioThread::start(Runnable *runnable) {
+    if (mHasThread) {
+        ALOGE("AAudioThread::start() - mHasThread.load() already true");
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    // mRunnable will be read by the new thread when it starts.
+    // pthread_create() forces a memory synchronization so mRunnable does not need to be atomic.
+    mRunnable = runnable;
+    int err = pthread_create(&mThread, nullptr, AAudioThread_internalThreadProc, this);
+    if (err != 0) {
+        ALOGE("AAudioThread::start() - pthread_create() returned %d %s", err, strerror(err));
+        return AAudioConvert_androidToAAudioResult(-err);
+    } else {
+        mHasThread = true;
+        return AAUDIO_OK;
+    }
+}
+
+aaudio_result_t AAudioThread::stop() {
+    if (!mHasThread) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    int err = pthread_join(mThread, nullptr);
+    mHasThread = false;
+    if (err != 0) {
+        ALOGE("AAudioThread::stop() - pthread_join() returned %d %s", err, strerror(err));
+        return AAudioConvert_androidToAAudioResult(-err);
+    } else {
+        return AAUDIO_OK;
+    }
+}
+
diff --git a/services/oboeservice/AAudioThread.h b/services/oboeservice/AAudioThread.h
new file mode 100644
index 0000000..02f1459
--- /dev/null
+++ b/services/oboeservice/AAudioThread.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_THREAD_H
+#define AAUDIO_THREAD_H
+
+#include <atomic>
+#include <pthread.h>
+
+#include <aaudio/AAudio.h>
+
+namespace aaudio {
+
+/**
+ * Abstract class similar to Java Runnable.
+ */
+class Runnable {
+public:
+    Runnable() {};
+    virtual ~Runnable() = default;
+
+    virtual void run() = 0;
+};
+
+/**
+ * Abstraction for a host dependent thread.
+ * TODO Consider using Android "Thread" class or std::thread instead.
+ */
+class AAudioThread
+{
+public:
+    AAudioThread();
+    AAudioThread(Runnable *runnable);
+    virtual ~AAudioThread() = default;
+
+    /**
+     * Start the thread running.
+     */
+    aaudio_result_t start(Runnable *runnable = nullptr);
+
+    /**
+     * Join the thread.
+     * The caller must somehow tell the thread to exit before calling join().
+     */
+    aaudio_result_t stop();
+
+    /**
+     * This will get called in the thread.
+     * Override this or pass a Runnable to start().
+     */
+    virtual void run() {};
+
+    void dispatch(); // called internally from 'C' thread wrapper
+
+private:
+    Runnable    *mRunnable;
+    bool         mHasThread;
+    pthread_t    mThread; // initialized in constructor
+
+};
+
+} /* namespace aaudio */
+
+#endif ///AAUDIO_THREAD_H
diff --git a/services/oboeservice/Android.mk b/services/oboeservice/Android.mk
new file mode 100644
index 0000000..b447725
--- /dev/null
+++ b/services/oboeservice/Android.mk
@@ -0,0 +1,57 @@
+LOCAL_PATH:= $(call my-dir)
+
+# AAudio Service
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libaaudioservice
+LOCAL_MODULE_TAGS := optional
+
+LIBAAUDIO_DIR := ../../media/libaaudio
+LIBAAUDIO_SRC_DIR := $(LIBAAUDIO_DIR)/src
+
+LOCAL_C_INCLUDES := \
+    $(TOPDIR)frameworks/av/services/audioflinger \
+    $(call include-path-for, audio-utils) \
+    frameworks/native/include \
+    system/core/base/include \
+    $(TOP)/frameworks/native/media/libaaudio/include/include \
+    $(TOP)/frameworks/av/media/libaaudio/include \
+    $(TOP)/frameworks/av/media/utils/include \
+    frameworks/native/include \
+    $(TOP)/external/tinyalsa/include \
+    $(TOP)/frameworks/av/media/libaaudio/src
+
+LOCAL_SRC_FILES += \
+    $(LIBAAUDIO_SRC_DIR)/utility/HandleTracker.cpp \
+    SharedMemoryProxy.cpp \
+    SharedRingBuffer.cpp \
+    AAudioEndpointManager.cpp \
+    AAudioMixer.cpp \
+    AAudioService.cpp \
+    AAudioServiceEndpoint.cpp \
+    AAudioServiceEndpointCapture.cpp \
+    AAudioServiceEndpointPlay.cpp \
+    AAudioServiceStreamBase.cpp \
+    AAudioServiceStreamMMAP.cpp \
+    AAudioServiceStreamShared.cpp \
+    TimestampScheduler.cpp \
+    AAudioThread.cpp
+
+LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
+
+# LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wno-unused-parameter
+LOCAL_CFLAGS += -Wall -Werror
+
+LOCAL_SHARED_LIBRARIES :=  \
+    libaaudio \
+    libaudioflinger \
+    libbinder \
+    libcutils \
+    libmediautils \
+    libutils \
+    liblog
+
+include $(BUILD_SHARED_LIBRARY)
+
+
diff --git a/services/oboeservice/SharedMemoryProxy.cpp b/services/oboeservice/SharedMemoryProxy.cpp
new file mode 100644
index 0000000..fc4532c
--- /dev/null
+++ b/services/oboeservice/SharedMemoryProxy.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <aaudio/AAudio.h>
+#include "SharedMemoryProxy.h"
+
+using namespace android;
+using namespace aaudio;
+
+SharedMemoryProxy::~SharedMemoryProxy()
+{
+    if (mOriginalSharedMemory != nullptr) {
+        munmap(mOriginalSharedMemory, mSharedMemorySizeInBytes);
+        mOriginalSharedMemory = nullptr;
+    }
+    if (mProxySharedMemory != nullptr) {
+        munmap(mProxySharedMemory, mSharedMemorySizeInBytes);
+        close(mProxyFileDescriptor);
+        mProxySharedMemory = nullptr;
+    }
+}
+
+aaudio_result_t SharedMemoryProxy::open(int originalFD, int32_t capacityInBytes) {
+    mOriginalFileDescriptor = originalFD;
+    mSharedMemorySizeInBytes = capacityInBytes;
+
+    mProxyFileDescriptor = ashmem_create_region("AAudioProxyDataBuffer", mSharedMemorySizeInBytes);
+    if (mProxyFileDescriptor < 0) {
+        ALOGE("SharedMemoryProxy::open() ashmem_create_region() failed %d", errno);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    int err = ashmem_set_prot_region(mProxyFileDescriptor, PROT_READ|PROT_WRITE);
+    if (err < 0) {
+        ALOGE("SharedMemoryProxy::open() ashmem_set_prot_region() failed %d", errno);
+        close(mProxyFileDescriptor);
+        mProxyFileDescriptor = -1;
+        return AAUDIO_ERROR_INTERNAL; // TODO convert errno to a better AAUDIO_ERROR;
+    }
+
+    // Get original memory address.
+    mOriginalSharedMemory = (uint8_t *) mmap(0, mSharedMemorySizeInBytes,
+                         PROT_READ|PROT_WRITE,
+                         MAP_SHARED,
+                         mOriginalFileDescriptor, 0);
+    if (mOriginalSharedMemory == MAP_FAILED) {
+        ALOGE("SharedMemoryProxy::open() original mmap(%d) failed %d (%s)",
+                mOriginalFileDescriptor, errno, strerror(errno));
+        return AAUDIO_ERROR_INTERNAL; // TODO convert errno to a better AAUDIO_ERROR;
+    }
+
+    // Map the fd to the same memory addresses.
+    mProxySharedMemory = (uint8_t *) mmap(mOriginalSharedMemory, mSharedMemorySizeInBytes,
+                         PROT_READ|PROT_WRITE,
+                         MAP_SHARED,
+                         mProxyFileDescriptor, 0);
+    if (mProxySharedMemory != mOriginalSharedMemory) {
+        ALOGE("SharedMemoryProxy::open() proxy mmap(%d) failed %d", mProxyFileDescriptor, errno);
+        munmap(mOriginalSharedMemory, mSharedMemorySizeInBytes);
+        mOriginalSharedMemory = nullptr;
+        close(mProxyFileDescriptor);
+        mProxyFileDescriptor = -1;
+        return AAUDIO_ERROR_INTERNAL; // TODO convert errno to a better AAUDIO_ERROR;
+    }
+
+    return AAUDIO_OK;
+}
diff --git a/services/oboeservice/SharedMemoryProxy.h b/services/oboeservice/SharedMemoryProxy.h
new file mode 100644
index 0000000..89eeb4b
--- /dev/null
+++ b/services/oboeservice/SharedMemoryProxy.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_SHARED_MEMORY_PROXY_H
+#define AAUDIO_SHARED_MEMORY_PROXY_H
+
+#include <stdint.h>
+#include <cutils/ashmem.h>
+#include <sys/mman.h>
+
+#include <aaudio/AAudio.h>
+
+namespace aaudio {
+
+/**
+ * Proxy for sharing memory between two file descriptors.
+ */
+class SharedMemoryProxy {
+public:
+    SharedMemoryProxy() {}
+
+    ~SharedMemoryProxy();
+
+    aaudio_result_t open(int fd, int32_t capacityInBytes);
+
+    int getFileDescriptor() const {
+        return mProxyFileDescriptor;
+    }
+
+private:
+    int            mOriginalFileDescriptor = -1;
+    int            mProxyFileDescriptor = -1;
+    uint8_t       *mOriginalSharedMemory = nullptr;
+    uint8_t       *mProxySharedMemory = nullptr;
+    int32_t        mSharedMemorySizeInBytes = 0;
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_SHARED_MEMORY_PROXY_H
diff --git a/services/oboeservice/SharedRingBuffer.cpp b/services/oboeservice/SharedRingBuffer.cpp
new file mode 100644
index 0000000..6b3fb4c
--- /dev/null
+++ b/services/oboeservice/SharedRingBuffer.cpp
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <sys/mman.h>
+
+#include "binding/RingBufferParcelable.h"
+#include "binding/AudioEndpointParcelable.h"
+
+#include "SharedRingBuffer.h"
+
+using namespace android;
+using namespace aaudio;
+
+SharedRingBuffer::~SharedRingBuffer()
+{
+    if (mSharedMemory != nullptr) {
+        delete mFifoBuffer;
+        munmap(mSharedMemory, mSharedMemorySizeInBytes);
+        mSharedMemory = nullptr;
+    }
+    if (mFileDescriptor != -1) {
+        ALOGV("SharedRingBuffer: LEAK? close(mFileDescriptor = %d)\n", mFileDescriptor);
+        close(mFileDescriptor);
+        mFileDescriptor = -1;
+    }
+}
+
+aaudio_result_t SharedRingBuffer::allocate(fifo_frames_t   bytesPerFrame,
+                                         fifo_frames_t   capacityInFrames) {
+    mCapacityInFrames = capacityInFrames;
+
+    // Create shared memory large enough to hold the data and the read and write counters.
+    mDataMemorySizeInBytes = bytesPerFrame * capacityInFrames;
+    mSharedMemorySizeInBytes = mDataMemorySizeInBytes + (2 * (sizeof(fifo_counter_t)));
+    mFileDescriptor = ashmem_create_region("AAudioSharedRingBuffer", mSharedMemorySizeInBytes);
+    ALOGV("SharedRingBuffer::allocate() LEAK? mFileDescriptor = %d\n", mFileDescriptor);
+    if (mFileDescriptor < 0) {
+        ALOGE("SharedRingBuffer::allocate() ashmem_create_region() failed %d", errno);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+
+    int err = ashmem_set_prot_region(mFileDescriptor, PROT_READ|PROT_WRITE); // TODO error handling?
+    if (err < 0) {
+        ALOGE("SharedRingBuffer::allocate() ashmem_set_prot_region() failed %d", errno);
+        close(mFileDescriptor);
+        return AAUDIO_ERROR_INTERNAL; // TODO convert errno to a better AAUDIO_ERROR;
+    }
+
+    // Map the fd to memory addresses.
+    mSharedMemory = (uint8_t *) mmap(0, mSharedMemorySizeInBytes,
+                         PROT_READ|PROT_WRITE,
+                         MAP_SHARED,
+                         mFileDescriptor, 0);
+    if (mSharedMemory == MAP_FAILED) {
+        ALOGE("SharedRingBuffer::allocate() mmap() failed %d", errno);
+        close(mFileDescriptor);
+        return AAUDIO_ERROR_INTERNAL; // TODO convert errno to a better AAUDIO_ERROR;
+    }
+
+    // Get addresses for our counters and data from the shared memory.
+    fifo_counter_t *readCounterAddress =
+            (fifo_counter_t *) &mSharedMemory[SHARED_RINGBUFFER_READ_OFFSET];
+    fifo_counter_t *writeCounterAddress =
+            (fifo_counter_t *) &mSharedMemory[SHARED_RINGBUFFER_WRITE_OFFSET];
+    uint8_t *dataAddress = &mSharedMemory[SHARED_RINGBUFFER_DATA_OFFSET];
+
+    mFifoBuffer = new FifoBuffer(bytesPerFrame, capacityInFrames,
+                                 readCounterAddress, writeCounterAddress, dataAddress);
+    return AAUDIO_OK;
+}
+
+void SharedRingBuffer::fillParcelable(AudioEndpointParcelable &endpointParcelable,
+                    RingBufferParcelable &ringBufferParcelable) {
+    int fdIndex = endpointParcelable.addFileDescriptor(mFileDescriptor, mSharedMemorySizeInBytes);
+    ringBufferParcelable.setupMemory(fdIndex,
+                                     SHARED_RINGBUFFER_DATA_OFFSET,
+                                     mDataMemorySizeInBytes,
+                                     SHARED_RINGBUFFER_READ_OFFSET,
+                                     SHARED_RINGBUFFER_WRITE_OFFSET,
+                                     sizeof(fifo_counter_t));
+    ringBufferParcelable.setBytesPerFrame(mFifoBuffer->getBytesPerFrame());
+    ringBufferParcelable.setFramesPerBurst(1);
+    ringBufferParcelable.setCapacityInFrames(mCapacityInFrames);
+}
diff --git a/services/oboeservice/SharedRingBuffer.h b/services/oboeservice/SharedRingBuffer.h
new file mode 100644
index 0000000..a2c3766
--- /dev/null
+++ b/services/oboeservice/SharedRingBuffer.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_SHARED_RINGBUFFER_H
+#define AAUDIO_SHARED_RINGBUFFER_H
+
+#include <stdint.h>
+#include <cutils/ashmem.h>
+#include <sys/mman.h>
+
+#include "fifo/FifoBuffer.h"
+#include "binding/RingBufferParcelable.h"
+#include "binding/AudioEndpointParcelable.h"
+
+namespace aaudio {
+
+// Determine the placement of the counters and data in shared memory.
+#define SHARED_RINGBUFFER_READ_OFFSET   0
+#define SHARED_RINGBUFFER_WRITE_OFFSET  sizeof(fifo_counter_t)
+#define SHARED_RINGBUFFER_DATA_OFFSET   (SHARED_RINGBUFFER_WRITE_OFFSET + sizeof(fifo_counter_t))
+
+/**
+ * Atomic FIFO that uses shared memory.
+ */
+class SharedRingBuffer {
+public:
+    SharedRingBuffer() {}
+
+    virtual ~SharedRingBuffer();
+
+    aaudio_result_t allocate(android::fifo_frames_t bytesPerFrame, android::fifo_frames_t capacityInFrames);
+
+    void fillParcelable(AudioEndpointParcelable &endpointParcelable,
+                        RingBufferParcelable &ringBufferParcelable);
+
+    android::FifoBuffer * getFifoBuffer() {
+        return mFifoBuffer;
+    }
+
+private:
+    int                    mFileDescriptor = -1;
+    android::FifoBuffer   *mFifoBuffer = nullptr;
+    uint8_t               *mSharedMemory = nullptr;
+    int32_t                mSharedMemorySizeInBytes = 0;
+    int32_t                mDataMemorySizeInBytes = 0;
+    android::fifo_frames_t mCapacityInFrames = 0;
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_SHARED_RINGBUFFER_H
diff --git a/services/oboeservice/TimestampScheduler.cpp b/services/oboeservice/TimestampScheduler.cpp
new file mode 100644
index 0000000..d54996f
--- /dev/null
+++ b/services/oboeservice/TimestampScheduler.cpp
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// for random()
+#include <stdlib.h>
+
+#include "TimestampScheduler.h"
+
+using namespace aaudio;
+
+void TimestampScheduler::start(int64_t startTime) {
+    mStartTime = startTime;
+    mLastTime = startTime;
+}
+
+int64_t TimestampScheduler::nextAbsoluteTime() {
+    int64_t periodsElapsed = (mLastTime - mStartTime) / mBurstPeriod;
+    // This is an arbitrary schedule that could probably be improved.
+    // It starts out sending a timestamp on every period because we want to
+    // get an accurate picture when the stream starts. Then it slows down
+    // to the occasional timestamps needed to detect a slow drift.
+    int64_t minPeriodsToDelay = (periodsElapsed < 10) ? 1 :
+        (periodsElapsed < 100) ? 3 :
+        (periodsElapsed < 1000) ? 10 : 50;
+    int64_t sleepTime = minPeriodsToDelay * mBurstPeriod;
+    // Generate a random rectangular distribution one burst wide so that we get
+    // an uncorrelated sampling of the MMAP pointer.
+    sleepTime += (int64_t)(random() * mBurstPeriod / RAND_MAX);
+    mLastTime += sleepTime;
+    return mLastTime;
+}
diff --git a/services/oboeservice/TimestampScheduler.h b/services/oboeservice/TimestampScheduler.h
new file mode 100644
index 0000000..baa5c41
--- /dev/null
+++ b/services/oboeservice/TimestampScheduler.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_TIMESTAMP_SCHEDULER_H
+#define AAUDIO_TIMESTAMP_SCHEDULER_H
+
+#include <aaudio/AAudio.h>
+#include <utility/AudioClock.h>
+
+namespace aaudio {
+
+/**
+ * Schedule wakeup time for monitoring the position
+ * of an MMAP/NOIRQ buffer.
+ *
+ * Note that this object is not thread safe. Only call it from a single thread.
+ */
+class TimestampScheduler
+{
+public:
+    TimestampScheduler() {};
+    virtual ~TimestampScheduler() = default;
+
+    /**
+     * Start the schedule at the given time.
+     */
+    void start(int64_t startTime);
+
+    /**
+     * Calculate the next time that the read position should be measured.
+     */
+    int64_t nextAbsoluteTime();
+
+    void setBurstPeriod(int64_t burstPeriod) {
+        mBurstPeriod = burstPeriod;
+    }
+
+    void setBurstPeriod(int32_t framesPerBurst,
+                        int32_t sampleRate) {
+        mBurstPeriod = AAUDIO_NANOS_PER_SECOND * framesPerBurst / sampleRate;
+    }
+
+    int64_t getBurstPeriod() {
+        return mBurstPeriod;
+    }
+
+private:
+    // Start with an arbitrary default so we do not divide by zero.
+    int64_t mBurstPeriod = AAUDIO_NANOS_PER_MILLISECOND;
+    int64_t mStartTime = 0;
+    int64_t mLastTime = 0;
+};
+
+} /* namespace aaudio */
+
+#endif /* AAUDIO_TIMESTAMP_SCHEDULER_H */
diff --git a/services/radio/Android.mk b/services/radio/Android.mk
index f5d74d3..1b50dc3 100644
--- a/services/radio/Android.mk
+++ b/services/radio/Android.mk
@@ -17,20 +17,39 @@
 include $(CLEAR_VARS)
 
 
-LOCAL_SRC_FILES:=               \
+LOCAL_SRC_FILES:= \
     RadioService.cpp
 
 LOCAL_SHARED_LIBRARIES:= \
-    libui \
     liblog \
     libutils \
     libbinder \
     libcutils \
-    libmedia \
+    libaudioclient \
     libhardware \
     libradio \
     libradio_metadata
 
+ifeq ($(USE_LEGACY_LOCAL_AUDIO_HAL),true)
+# libhardware configuration
+LOCAL_SRC_FILES +=               \
+    RadioHalLegacy.cpp
+else
+# Treble configuration
+
+LOCAL_SRC_FILES += \
+    HidlUtils.cpp \
+    RadioHalHidl.cpp
+
+LOCAL_SHARED_LIBRARIES += \
+    libhwbinder \
+    libhidlbase \
+    libhidltransport \
+    libbase \
+    libaudiohal \
+    android.hardware.broadcastradio@1.0
+endif
+
 LOCAL_CFLAGS += -Wall -Wextra -Werror
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
diff --git a/services/radio/HidlUtils.cpp b/services/radio/HidlUtils.cpp
new file mode 100644
index 0000000..6895377
--- /dev/null
+++ b/services/radio/HidlUtils.cpp
@@ -0,0 +1,180 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "HidlUtils"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+#include <utils/misc.h>
+#include <system/radio_metadata.h>
+
+#include "HidlUtils.h"
+
+namespace android {
+
+using android::hardware::broadcastradio::V1_0::MetadataType;
+using android::hardware::broadcastradio::V1_0::Band;
+using android::hardware::broadcastradio::V1_0::Deemphasis;
+using android::hardware::broadcastradio::V1_0::Rds;
+
+//static
+int HidlUtils::convertHalResult(Result result)
+{
+    switch (result) {
+        case Result::OK:
+            return 0;
+        case Result::INVALID_ARGUMENTS:
+            return -EINVAL;
+        case Result::INVALID_STATE:
+            return -ENOSYS;
+        case Result::TIMEOUT:
+            return -ETIMEDOUT;
+        case Result::NOT_INITIALIZED:
+        default:
+            return -ENODEV;
+    }
+}
+
+
+//static
+void HidlUtils::convertBandConfigToHal(BandConfig *halConfig,
+                                       const radio_hal_band_config_t *config)
+{
+    halConfig->type = static_cast<Band>(config->type);
+    halConfig->antennaConnected = config->antenna_connected;
+    halConfig->lowerLimit = config->lower_limit;
+    halConfig->upperLimit = config->upper_limit;
+    halConfig->spacings.setToExternal(const_cast<unsigned int *>(&config->spacings[0]),
+                                       config->num_spacings * sizeof(uint32_t));
+    // FIXME: transfer buffer ownership. should have a method for that in hidl_vec
+    halConfig->spacings.resize(config->num_spacings);
+
+    if (halConfig->type == Band::FM) {
+        halConfig->ext.fm.deemphasis = static_cast<Deemphasis>(config->fm.deemphasis);
+        halConfig->ext.fm.stereo = config->fm.stereo;
+        halConfig->ext.fm.rds = static_cast<Rds>(config->fm.rds);
+        halConfig->ext.fm.ta = config->fm.ta;
+        halConfig->ext.fm.af = config->fm.af;
+        halConfig->ext.fm.ea = config->fm.ea;
+    } else {
+        halConfig->ext.am.stereo = config->am.stereo;
+    }
+}
+
+//static
+void HidlUtils::convertPropertiesFromHal(radio_hal_properties_t *properties,
+                                         const Properties *halProperties)
+{
+    properties->class_id = static_cast<radio_class_t>(halProperties->classId);
+    strlcpy(properties->implementor, halProperties->implementor.c_str(), RADIO_STRING_LEN_MAX);
+    strlcpy(properties->product, halProperties->product.c_str(), RADIO_STRING_LEN_MAX);
+    strlcpy(properties->version, halProperties->version.c_str(), RADIO_STRING_LEN_MAX);
+    strlcpy(properties->serial, halProperties->serial.c_str(), RADIO_STRING_LEN_MAX);
+    properties->num_tuners = halProperties->numTuners;
+    properties->num_audio_sources = halProperties->numAudioSources;
+    properties->supports_capture = halProperties->supportsCapture;
+    properties->num_bands = halProperties->bands.size();
+
+    for (size_t i = 0; i < halProperties->bands.size(); i++) {
+        convertBandConfigFromHal(&properties->bands[i], &halProperties->bands[i]);
+    }
+}
+
+//static
+void HidlUtils::convertBandConfigFromHal(radio_hal_band_config_t *config,
+                                         const BandConfig *halConfig)
+{
+    config->type = static_cast<radio_band_t>(halConfig->type);
+    config->antenna_connected = halConfig->antennaConnected;
+    config->lower_limit = halConfig->lowerLimit;
+    config->upper_limit = halConfig->upperLimit;
+    config->num_spacings = halConfig->spacings.size();
+    if (config->num_spacings > RADIO_NUM_SPACINGS_MAX) {
+        config->num_spacings = RADIO_NUM_SPACINGS_MAX;
+    }
+    memcpy(config->spacings, halConfig->spacings.data(),
+           sizeof(uint32_t) * config->num_spacings);
+
+    if (halConfig->type == Band::FM) {
+        config->fm.deemphasis = static_cast<radio_deemphasis_t>(halConfig->ext.fm.deemphasis);
+        config->fm.stereo = halConfig->ext.fm.stereo;
+        config->fm.rds = static_cast<radio_rds_t>(halConfig->ext.fm.rds);
+        config->fm.ta = halConfig->ext.fm.ta;
+        config->fm.af = halConfig->ext.fm.af;
+        config->fm.ea = halConfig->ext.fm.ea;
+    } else {
+        config->am.stereo = halConfig->ext.am.stereo;
+    }
+}
+
+
+//static
+void HidlUtils::convertProgramInfoFromHal(radio_program_info_t *info,
+                                          const ProgramInfo *halInfo)
+{
+    info->channel = halInfo->channel;
+    info->sub_channel = halInfo->subChannel;
+    info->tuned = halInfo->tuned;
+    info->stereo = halInfo->stereo;
+    info->digital = halInfo->digital;
+    info->signal_strength = halInfo->signalStrength;
+    convertMetaDataFromHal(&info->metadata, halInfo->metadata,
+                           halInfo->channel, halInfo->subChannel);
+}
+
+// TODO(twasilczyk): drop unnecessary channel info
+//static
+void HidlUtils::convertMetaDataFromHal(radio_metadata_t **metadata,
+                                       const hidl_vec<MetaData>& halMetadata,
+                                       uint32_t channel __unused,
+                                       uint32_t subChannel __unused)
+{
+
+    if (metadata == nullptr || *metadata == nullptr) {
+        ALOGE("destination metadata buffer is a nullptr");
+        return;
+    }
+    for (size_t i = 0; i < halMetadata.size(); i++) {
+        radio_metadata_key_t key = static_cast<radio_metadata_key_t>(halMetadata[i].key);
+        radio_metadata_type_t type = static_cast<radio_metadata_key_t>(halMetadata[i].type);
+        radio_metadata_clock_t clock;
+
+        switch (type) {
+        case RADIO_METADATA_TYPE_INT:
+            radio_metadata_add_int(metadata, key, halMetadata[i].intValue);
+            break;
+        case RADIO_METADATA_TYPE_TEXT:
+            radio_metadata_add_text(metadata, key, halMetadata[i].stringValue.c_str());
+            break;
+        case RADIO_METADATA_TYPE_RAW:
+            radio_metadata_add_raw(metadata, key,
+                                   halMetadata[i].rawValue.data(),
+                                   halMetadata[i].rawValue.size());
+            break;
+        case RADIO_METADATA_TYPE_CLOCK:
+            clock.utc_seconds_since_epoch =
+                    halMetadata[i].clockValue.utcSecondsSinceEpoch;
+            clock.timezone_offset_in_minutes =
+                    halMetadata[i].clockValue.timezoneOffsetInMinutes;
+            radio_metadata_add_clock(metadata, key, &clock);
+            break;
+        default:
+            ALOGW("%s invalid metadata type %u",__FUNCTION__, halMetadata[i].type);
+            break;
+        }
+    }
+}
+
+}  // namespace android
diff --git a/services/radio/HidlUtils.h b/services/radio/HidlUtils.h
new file mode 100644
index 0000000..c771060
--- /dev/null
+++ b/services/radio/HidlUtils.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef ANDROID_HARDWARE_RADIO_HAL_HIDL_UTILS_H
+#define ANDROID_HARDWARE_RADIO_HAL_HIDL_UTILS_H
+
+#include <android/hardware/broadcastradio/1.0/types.h>
+#include <hardware/radio.h>
+
+namespace android {
+
+using android::hardware::hidl_vec;
+using android::hardware::broadcastradio::V1_0::Result;
+using android::hardware::broadcastradio::V1_0::Properties;
+using android::hardware::broadcastradio::V1_0::BandConfig;
+using android::hardware::broadcastradio::V1_0::ProgramInfo;
+using android::hardware::broadcastradio::V1_0::MetaData;
+
+class HidlUtils {
+public:
+    static int convertHalResult(Result result);
+    static void convertBandConfigFromHal(radio_hal_band_config_t *config,
+                                         const BandConfig *halConfig);
+    static void convertPropertiesFromHal(radio_hal_properties_t *properties,
+                                         const Properties *halProperties);
+    static void convertBandConfigToHal(BandConfig *halConfig,
+                                       const radio_hal_band_config_t *config);
+    static void convertProgramInfoFromHal(radio_program_info_t *info,
+                                          const ProgramInfo *halInfo);
+    static void convertMetaDataFromHal(radio_metadata_t **metadata,
+                                       const hidl_vec<MetaData>& halMetadata,
+                                       uint32_t channel,
+                                       uint32_t subChannel);
+};
+
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_RADIO_HAL_HIDL_UTILS_H
diff --git a/services/radio/RadioHalHidl.cpp b/services/radio/RadioHalHidl.cpp
new file mode 100644
index 0000000..f637275
--- /dev/null
+++ b/services/radio/RadioHalHidl.cpp
@@ -0,0 +1,382 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "RadioHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <media/audiohal/hidl/HalDeathHandler.h>
+#include <utils/Log.h>
+#include <utils/misc.h>
+#include <system/RadioMetadataWrapper.h>
+#include <android/hardware/broadcastradio/1.0/IBroadcastRadioFactory.h>
+
+#include "RadioHalHidl.h"
+#include "HidlUtils.h"
+
+namespace android {
+
+using android::hardware::broadcastradio::V1_0::IBroadcastRadioFactory;
+using android::hardware::broadcastradio::V1_0::Class;
+using android::hardware::broadcastradio::V1_0::Direction;
+using android::hardware::broadcastradio::V1_0::Properties;
+
+
+/* static */
+sp<RadioInterface> RadioInterface::connectModule(radio_class_t classId)
+{
+    return new RadioHalHidl(classId);
+}
+
+int RadioHalHidl::getProperties(radio_hal_properties_t *properties)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    sp<IBroadcastRadio> module = getService();
+    if (module == 0) {
+        return -ENODEV;
+    }
+    Properties halProperties;
+    Result halResult = Result::NOT_INITIALIZED;
+    Return<void> hidlReturn =
+            module->getProperties([&](Result result, const Properties& properties) {
+                    halResult = result;
+                    if (result == Result::OK) {
+                        halProperties = properties;
+                    }
+                });
+
+    if (halResult == Result::OK) {
+        HidlUtils::convertPropertiesFromHal(properties, &halProperties);
+    }
+    return HidlUtils::convertHalResult(halResult);
+}
+
+int RadioHalHidl::openTuner(const radio_hal_band_config_t *config,
+                            bool audio,
+                            sp<TunerCallbackInterface> callback,
+                            sp<TunerInterface>& tuner)
+{
+    sp<IBroadcastRadio> module = getService();
+    if (module == 0) {
+        return -ENODEV;
+    }
+    sp<Tuner> tunerImpl = new Tuner(callback, this);
+
+    BandConfig halConfig;
+    Result halResult = Result::NOT_INITIALIZED;
+    sp<ITuner> halTuner;
+
+    HidlUtils::convertBandConfigToHal(&halConfig, config);
+    Return<void> hidlReturn =
+            module->openTuner(halConfig, audio, tunerImpl,
+                              [&](Result result, const sp<ITuner>& tuner) {
+                    halResult = result;
+                    if (result == Result::OK) {
+                        halTuner = tuner;
+                    }
+                });
+
+    if (halResult == Result::OK) {
+        tunerImpl->setHalTuner(halTuner);
+        tuner = tunerImpl;
+    }
+
+    return HidlUtils::convertHalResult(halResult);
+}
+
+int RadioHalHidl::closeTuner(sp<TunerInterface>& tuner)
+{
+    sp<Tuner> tunerImpl = static_cast<Tuner *>(tuner.get());
+    sp<ITuner> clearTuner;
+    tunerImpl->setHalTuner(clearTuner);
+    return 0;
+}
+
+RadioHalHidl::RadioHalHidl(radio_class_t classId)
+    : mClassId(classId)
+{
+}
+
+RadioHalHidl::~RadioHalHidl()
+{
+}
+
+sp<IBroadcastRadio> RadioHalHidl::getService()
+{
+    if (mHalModule == 0) {
+        sp<IBroadcastRadioFactory> factory = IBroadcastRadioFactory::getService();
+        if (factory != 0) {
+            factory->connectModule(static_cast<Class>(mClassId),
+                               [&](Result retval, const ::android::sp<IBroadcastRadio>& result) {
+                if (retval == Result::OK) {
+                    mHalModule = result;
+                }
+            });
+        }
+    }
+    ALOGV("%s OUT module %p", __FUNCTION__, mHalModule.get());
+    return mHalModule;
+}
+
+void RadioHalHidl::clearService()
+{
+    ALOGV("%s IN module %p", __FUNCTION__, mHalModule.get());
+    mHalModule.clear();
+}
+
+
+int RadioHalHidl::Tuner::setConfiguration(const radio_hal_band_config_t *config)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    BandConfig halConfig;
+    HidlUtils::convertBandConfigToHal(&halConfig, config);
+
+    Return<Result> hidlResult = mHalTuner->setConfiguration(halConfig);
+    return HidlUtils::convertHalResult(hidlResult);
+}
+
+int RadioHalHidl::Tuner::getConfiguration(radio_hal_band_config_t *config)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    BandConfig halConfig;
+    Result halResult;
+    Return<void> hidlReturn =
+            mHalTuner->getConfiguration([&](Result result, const BandConfig& config) {
+                    halResult = result;
+                    if (result == Result::OK) {
+                        halConfig = config;
+                    }
+                });
+    if (hidlReturn.isOk() && halResult == Result::OK) {
+        HidlUtils::convertBandConfigFromHal(config, &halConfig);
+    }
+    return HidlUtils::convertHalResult(halResult);
+}
+
+int RadioHalHidl::Tuner::scan(radio_direction_t direction, bool skip_sub_channel)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    Return<Result> hidlResult =
+            mHalTuner->scan(static_cast<Direction>(direction), skip_sub_channel);
+    return HidlUtils::convertHalResult(hidlResult);
+}
+
+int RadioHalHidl::Tuner::step(radio_direction_t direction, bool skip_sub_channel)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    Return<Result> hidlResult =
+            mHalTuner->step(static_cast<Direction>(direction), skip_sub_channel);
+    return HidlUtils::convertHalResult(hidlResult);
+}
+
+int RadioHalHidl::Tuner::tune(unsigned int channel, unsigned int sub_channel)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    Return<Result> hidlResult =
+            mHalTuner->tune(channel, sub_channel);
+    return HidlUtils::convertHalResult(hidlResult);
+}
+
+int RadioHalHidl::Tuner::cancel()
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    Return<Result> hidlResult = mHalTuner->cancel();
+    return HidlUtils::convertHalResult(hidlResult);
+}
+
+int RadioHalHidl::Tuner::getProgramInformation(radio_program_info_t *info)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    if (info == nullptr || info->metadata == nullptr) {
+        return BAD_VALUE;
+    }
+    ProgramInfo halInfo;
+    Result halResult;
+    Return<void> hidlReturn = mHalTuner->getProgramInformation(
+        [&](Result result, const ProgramInfo& info) {
+            halResult = result;
+            if (result == Result::OK) {
+                halInfo = info;
+            }
+        });
+    if (hidlReturn.isOk() && halResult == Result::OK) {
+        HidlUtils::convertProgramInfoFromHal(info, &halInfo);
+    }
+    return HidlUtils::convertHalResult(halResult);
+}
+
+Return<void> RadioHalHidl::Tuner::hardwareFailure()
+{
+    ALOGV("%s IN", __FUNCTION__);
+    handleHwFailure();
+    return Return<void>();
+}
+
+Return<void> RadioHalHidl::Tuner::configChange(Result result, const BandConfig& config)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event;
+    memset(&event, 0, sizeof(radio_hal_event_t));
+    event.type = RADIO_EVENT_CONFIG;
+    event.status = HidlUtils::convertHalResult(result);
+    HidlUtils::convertBandConfigFromHal(&event.config, &config);
+    onCallback(&event);
+    return Return<void>();
+}
+
+Return<void> RadioHalHidl::Tuner::tuneComplete(Result result, const ProgramInfo& info)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event = {};
+    RadioMetadataWrapper metadataWrapper(&event.info.metadata);
+
+    event.type = RADIO_EVENT_TUNED;
+    event.status = HidlUtils::convertHalResult(result);
+    HidlUtils::convertProgramInfoFromHal(&event.info, &info);
+    onCallback(&event);
+    return Return<void>();
+}
+
+Return<void> RadioHalHidl::Tuner::afSwitch(const ProgramInfo& info)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event = {};
+    RadioMetadataWrapper metadataWrapper(&event.info.metadata);
+
+    event.type = RADIO_EVENT_AF_SWITCH;
+    HidlUtils::convertProgramInfoFromHal(&event.info, &info);
+    onCallback(&event);
+    return Return<void>();
+}
+
+Return<void> RadioHalHidl::Tuner::antennaStateChange(bool connected)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event;
+    memset(&event, 0, sizeof(radio_hal_event_t));
+    event.type = RADIO_EVENT_ANTENNA;
+    event.on = connected;
+    onCallback(&event);
+    return Return<void>();
+}
+Return<void> RadioHalHidl::Tuner::trafficAnnouncement(bool active)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event;
+    memset(&event, 0, sizeof(radio_hal_event_t));
+    event.type = RADIO_EVENT_TA;
+    event.on = active;
+    onCallback(&event);
+    return Return<void>();
+}
+Return<void> RadioHalHidl::Tuner::emergencyAnnouncement(bool active)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event;
+    memset(&event, 0, sizeof(radio_hal_event_t));
+    event.type = RADIO_EVENT_EA;
+    event.on = active;
+    onCallback(&event);
+    return Return<void>();
+}
+Return<void> RadioHalHidl::Tuner::newMetadata(uint32_t channel, uint32_t subChannel,
+                                          const ::android::hardware::hidl_vec<MetaData>& metadata)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event = {};
+    RadioMetadataWrapper metadataWrapper(&event.metadata);
+
+    event.type = RADIO_EVENT_METADATA;
+    HidlUtils::convertMetaDataFromHal(&event.metadata, metadata, channel, subChannel);
+    onCallback(&event);
+    return Return<void>();
+}
+
+
+RadioHalHidl::Tuner::Tuner(sp<TunerCallbackInterface> callback, sp<RadioHalHidl> module)
+    : TunerInterface(), mHalTuner(NULL), mCallback(callback), mParentModule(module)
+{
+    // Make sure the handler we are passing in only deals with const members,
+    // as it can be called on an arbitrary thread.
+    const auto& self = this;
+    HalDeathHandler::getInstance()->registerAtExitHandler(
+            this, [&self]() { self->sendHwFailureEvent(); });
+}
+
+
+RadioHalHidl::Tuner::~Tuner()
+{
+    HalDeathHandler::getInstance()->unregisterAtExitHandler(this);
+}
+
+void RadioHalHidl::Tuner::setHalTuner(sp<ITuner>& halTuner) {
+    if (mHalTuner != 0) {
+        mHalTuner->unlinkToDeath(HalDeathHandler::getInstance());
+    }
+    mHalTuner = halTuner;
+    if (mHalTuner != 0) {
+        mHalTuner->linkToDeath(HalDeathHandler::getInstance(), 0 /*cookie*/);
+    }
+}
+
+void RadioHalHidl::Tuner::handleHwFailure()
+{
+    ALOGV("%s IN", __FUNCTION__);
+    sp<RadioHalHidl> parentModule = mParentModule.promote();
+    if (parentModule != 0) {
+        parentModule->clearService();
+    }
+    sendHwFailureEvent();
+    mHalTuner.clear();
+}
+
+void RadioHalHidl::Tuner::sendHwFailureEvent() const
+{
+    radio_hal_event_t event;
+    memset(&event, 0, sizeof(radio_hal_event_t));
+    event.type = RADIO_EVENT_HW_FAILURE;
+    onCallback(&event);
+}
+
+void RadioHalHidl::Tuner::onCallback(radio_hal_event_t *halEvent) const
+{
+    if (mCallback != 0) {
+        mCallback->onEvent(halEvent);
+    }
+}
+
+} // namespace android
diff --git a/services/radio/RadioHalHidl.h b/services/radio/RadioHalHidl.h
new file mode 100644
index 0000000..f98420d
--- /dev/null
+++ b/services/radio/RadioHalHidl.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_RADIO_HAL_HIDL_H
+#define ANDROID_HARDWARE_RADIO_HAL_HIDL_H
+
+#include <utils/RefBase.h>
+#include <utils/threads.h>
+#include "RadioInterface.h"
+#include "TunerInterface.h"
+#include "TunerCallbackInterface.h"
+#include <android/hardware/broadcastradio/1.0/types.h>
+#include <android/hardware/broadcastradio/1.0/IBroadcastRadio.h>
+#include <android/hardware/broadcastradio/1.0/ITuner.h>
+#include <android/hardware/broadcastradio/1.0/ITunerCallback.h>
+
+namespace android {
+
+using android::hardware::Return;
+using android::hardware::broadcastradio::V1_0::Result;
+using android::hardware::broadcastradio::V1_0::IBroadcastRadio;
+using android::hardware::broadcastradio::V1_0::ITuner;
+using android::hardware::broadcastradio::V1_0::ITunerCallback;
+
+using android::hardware::broadcastradio::V1_0::BandConfig;
+using android::hardware::broadcastradio::V1_0::ProgramInfo;
+using android::hardware::broadcastradio::V1_0::MetaData;
+
+class RadioHalHidl : public RadioInterface
+{
+public:
+                    RadioHalHidl(radio_class_t classId);
+
+                    // RadioInterface
+        virtual int getProperties(radio_hal_properties_t *properties);
+        virtual int openTuner(const radio_hal_band_config_t *config,
+                              bool audio,
+                              sp<TunerCallbackInterface> callback,
+                              sp<TunerInterface>& tuner);
+        virtual int closeTuner(sp<TunerInterface>& tuner);
+
+        class Tuner  : public TunerInterface, public virtual ITunerCallback
+        {
+        public:
+                        Tuner(sp<TunerCallbackInterface> callback, sp<RadioHalHidl> module);
+
+                        // TunerInterface
+            virtual int setConfiguration(const radio_hal_band_config_t *config);
+            virtual int getConfiguration(radio_hal_band_config_t *config);
+            virtual int scan(radio_direction_t direction, bool skip_sub_channel);
+            virtual int step(radio_direction_t direction, bool skip_sub_channel);
+            virtual int tune(unsigned int channel, unsigned int sub_channel);
+            virtual int cancel();
+            virtual int getProgramInformation(radio_program_info_t *info);
+
+                        // ITunerCallback
+            virtual Return<void> hardwareFailure();
+            virtual Return<void> configChange(Result result, const BandConfig& config);
+            virtual Return<void> tuneComplete(Result result, const ProgramInfo& info);
+            virtual Return<void> afSwitch(const ProgramInfo& info);
+            virtual Return<void> antennaStateChange(bool connected);
+            virtual Return<void> trafficAnnouncement(bool active);
+            virtual Return<void> emergencyAnnouncement(bool active);
+            virtual Return<void> newMetadata(uint32_t channel, uint32_t subChannel,
+                                         const ::android::hardware::hidl_vec<MetaData>& metadata);
+
+            void setHalTuner(sp<ITuner>& halTuner);
+            sp<ITuner> getHalTuner() { return mHalTuner; }
+
+        private:
+            virtual          ~Tuner();
+
+                    void     onCallback(radio_hal_event_t *halEvent) const;
+                    void     handleHwFailure();
+                    void     sendHwFailureEvent() const;
+
+            sp<ITuner> mHalTuner;
+            const sp<TunerCallbackInterface> mCallback;
+            wp<RadioHalHidl> mParentModule;
+        };
+
+        sp<IBroadcastRadio> getService();
+        void clearService();
+
+private:
+        virtual         ~RadioHalHidl();
+
+                radio_class_t mClassId;
+                sp<IBroadcastRadio> mHalModule;
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_RADIO_HAL_HIDL_H
diff --git a/services/radio/RadioHalLegacy.cpp b/services/radio/RadioHalLegacy.cpp
new file mode 100644
index 0000000..d50ccd4
--- /dev/null
+++ b/services/radio/RadioHalLegacy.cpp
@@ -0,0 +1,218 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "RadioHalLegacy"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+#include <utils/misc.h>
+#include "RadioHalLegacy.h"
+
+namespace android {
+
+const char *RadioHalLegacy::sClassModuleNames[] = {
+    RADIO_HARDWARE_MODULE_ID_FM, /* corresponds to RADIO_CLASS_AM_FM */
+    RADIO_HARDWARE_MODULE_ID_SAT,  /* corresponds to RADIO_CLASS_SAT */
+    RADIO_HARDWARE_MODULE_ID_DT,   /* corresponds to RADIO_CLASS_DT */
+};
+
+/* static */
+sp<RadioInterface> RadioInterface::connectModule(radio_class_t classId)
+{
+    return new RadioHalLegacy(classId);
+}
+
+RadioHalLegacy::RadioHalLegacy(radio_class_t classId)
+    : RadioInterface(), mClassId(classId), mHwDevice(NULL)
+{
+}
+
+void RadioHalLegacy::onFirstRef()
+{
+    const hw_module_t *mod;
+    int rc;
+    ALOGI("%s mClassId %d", __FUNCTION__, mClassId);
+
+    mHwDevice = NULL;
+
+    if ((mClassId < 0) ||
+            (mClassId >= NELEM(sClassModuleNames))) {
+        ALOGE("invalid class ID %d", mClassId);
+        return;
+    }
+
+    ALOGI("%s RADIO_HARDWARE_MODULE_ID %s %s",
+          __FUNCTION__, RADIO_HARDWARE_MODULE_ID, sClassModuleNames[mClassId]);
+
+    rc = hw_get_module_by_class(RADIO_HARDWARE_MODULE_ID, sClassModuleNames[mClassId], &mod);
+    if (rc != 0) {
+        ALOGE("couldn't load radio module %s.%s (%s)",
+              RADIO_HARDWARE_MODULE_ID, sClassModuleNames[mClassId], strerror(-rc));
+        return;
+    }
+    rc = radio_hw_device_open(mod, &mHwDevice);
+    if (rc != 0) {
+        ALOGE("couldn't open radio hw device in %s.%s (%s)",
+              RADIO_HARDWARE_MODULE_ID, "primary", strerror(-rc));
+        mHwDevice = NULL;
+        return;
+    }
+    if (mHwDevice->common.version != RADIO_DEVICE_API_VERSION_CURRENT) {
+        ALOGE("wrong radio hw device version %04x", mHwDevice->common.version);
+        radio_hw_device_close(mHwDevice);
+        mHwDevice = NULL;
+    }
+}
+
+RadioHalLegacy::~RadioHalLegacy()
+{
+    if (mHwDevice != NULL) {
+        radio_hw_device_close(mHwDevice);
+    }
+}
+
+int RadioHalLegacy::getProperties(radio_hal_properties_t *properties)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+
+    int rc = mHwDevice->get_properties(mHwDevice, properties);
+    if (rc != 0) {
+        ALOGE("could not read implementation properties");
+    }
+
+    return rc;
+}
+
+int RadioHalLegacy::openTuner(const radio_hal_band_config_t *config,
+                bool audio,
+                sp<TunerCallbackInterface> callback,
+                sp<TunerInterface>& tuner)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    sp<Tuner> tunerImpl = new Tuner(callback);
+
+    const struct radio_tuner *halTuner;
+    int rc = mHwDevice->open_tuner(mHwDevice, config, audio,
+                                   RadioHalLegacy::Tuner::callback, tunerImpl.get(),
+                                   &halTuner);
+    if (rc == 0) {
+        tunerImpl->setHalTuner(halTuner);
+        tuner = tunerImpl;
+    }
+    return rc;
+}
+
+int RadioHalLegacy::closeTuner(sp<TunerInterface>& tuner)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    if (tuner == 0) {
+        return -EINVAL;
+    }
+    sp<Tuner> tunerImpl = (Tuner *)tuner.get();
+    return mHwDevice->close_tuner(mHwDevice, tunerImpl->getHalTuner());
+}
+
+int RadioHalLegacy::Tuner::setConfiguration(const radio_hal_band_config_t *config)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->set_configuration(mHalTuner, config);
+}
+
+int RadioHalLegacy::Tuner::getConfiguration(radio_hal_band_config_t *config)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->get_configuration(mHalTuner, config);
+}
+
+int RadioHalLegacy::Tuner::scan(radio_direction_t direction, bool skip_sub_channel)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->scan(mHalTuner, direction, skip_sub_channel);
+}
+
+int RadioHalLegacy::Tuner::step(radio_direction_t direction, bool skip_sub_channel)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->step(mHalTuner, direction, skip_sub_channel);
+}
+
+int RadioHalLegacy::Tuner::tune(unsigned int channel, unsigned int sub_channel)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->tune(mHalTuner, channel, sub_channel);
+}
+
+int RadioHalLegacy::Tuner::cancel()
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->cancel(mHalTuner);
+}
+
+int RadioHalLegacy::Tuner::getProgramInformation(radio_program_info_t *info)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->get_program_information(mHalTuner, info);
+}
+
+void RadioHalLegacy::Tuner::onCallback(radio_hal_event_t *halEvent)
+{
+    if (mCallback != 0) {
+        mCallback->onEvent(halEvent);
+    }
+}
+
+//static
+void RadioHalLegacy::Tuner::callback(radio_hal_event_t *halEvent, void *cookie)
+{
+    wp<RadioHalLegacy::Tuner> weak = wp<RadioHalLegacy::Tuner>((RadioHalLegacy::Tuner *)cookie);
+    sp<RadioHalLegacy::Tuner> tuner = weak.promote();
+    if (tuner != 0) {
+        tuner->onCallback(halEvent);
+    }
+}
+
+RadioHalLegacy::Tuner::Tuner(sp<TunerCallbackInterface> callback)
+    : TunerInterface(), mHalTuner(NULL), mCallback(callback)
+{
+}
+
+
+RadioHalLegacy::Tuner::~Tuner()
+{
+}
+
+
+} // namespace android
diff --git a/services/radio/RadioHalLegacy.h b/services/radio/RadioHalLegacy.h
new file mode 100644
index 0000000..7d4831b
--- /dev/null
+++ b/services/radio/RadioHalLegacy.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_RADIO_HAL_LEGACY_H
+#define ANDROID_HARDWARE_RADIO_HAL_LEGACY_H
+
+#include <utils/RefBase.h>
+#include <hardware/radio.h>
+#include "RadioInterface.h"
+#include "TunerInterface.h"
+#include "TunerCallbackInterface.h"
+
+namespace android {
+
+class RadioHalLegacy : public RadioInterface
+{
+public:
+        RadioHalLegacy(radio_class_t classId);
+
+        // RadioInterface
+        virtual int getProperties(radio_hal_properties_t *properties);
+        virtual int openTuner(const radio_hal_band_config_t *config,
+                        bool audio,
+                        sp<TunerCallbackInterface> callback,
+                        sp<TunerInterface>& tuner);
+        virtual int closeTuner(sp<TunerInterface>& tuner);
+
+        // RefBase
+        virtual void onFirstRef();
+
+        class Tuner  : public TunerInterface
+        {
+        public:
+                        Tuner(sp<TunerCallbackInterface> callback);
+
+            virtual int setConfiguration(const radio_hal_band_config_t *config);
+            virtual int getConfiguration(radio_hal_band_config_t *config);
+            virtual int scan(radio_direction_t direction, bool skip_sub_channel);
+            virtual int step(radio_direction_t direction, bool skip_sub_channel);
+            virtual int tune(unsigned int channel, unsigned int sub_channel);
+            virtual int cancel();
+            virtual int getProgramInformation(radio_program_info_t *info);
+
+            static void callback(radio_hal_event_t *halEvent, void *cookie);
+                   void onCallback(radio_hal_event_t *halEvent);
+
+            void setHalTuner(const struct radio_tuner *halTuner) { mHalTuner = halTuner; }
+            const struct radio_tuner *getHalTuner() { return mHalTuner; }
+
+        private:
+            virtual      ~Tuner();
+
+            const struct radio_tuner    *mHalTuner;
+            sp<TunerCallbackInterface>  mCallback;
+        };
+
+protected:
+        virtual     ~RadioHalLegacy();
+
+private:
+        static const char * sClassModuleNames[];
+
+        radio_class_t mClassId;
+        struct radio_hw_device  *mHwDevice;
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_RADIO_HAL_LEGACY_H
diff --git a/services/radio/RadioInterface.h b/services/radio/RadioInterface.h
new file mode 100644
index 0000000..fcfb4d5
--- /dev/null
+++ b/services/radio/RadioInterface.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_RADIO_INTERFACE_H
+#define ANDROID_HARDWARE_RADIO_INTERFACE_H
+
+#include <utils/RefBase.h>
+#include <system/radio.h>
+#include "TunerInterface.h"
+#include "TunerCallbackInterface.h"
+
+namespace android {
+
+class RadioInterface : public virtual RefBase
+{
+public:
+        /* get a sound trigger HAL instance */
+        static sp<RadioInterface> connectModule(radio_class_t classId);
+
+        /*
+         * Retrieve implementation properties.
+         *
+         * arguments:
+         * - properties: where to return the module properties
+         *
+         * returns:
+         *  0 if no error
+         *  -EINVAL if invalid arguments are passed
+         */
+        virtual int getProperties(radio_hal_properties_t *properties) = 0;
+
+        /*
+         * Open a tuner interface for the requested configuration.
+         * If no other tuner is opened, this will activate the radio module.
+         *
+         * arguments:
+         * - config: the band configuration to apply
+         * - audio: this tuner will be used for live radio listening and should be connected to
+         * the radio audio source.
+         * - callback: the event callback
+         * - cookie: the cookie to pass when calling the callback
+         * - tuner: where to return the tuner interface
+         *
+         * returns:
+         *  0 if HW was powered up and configuration could be applied
+         *  -EINVAL if configuration requested is invalid
+         *  -ENOSYS if called out of sequence
+         *
+         * Callback function with event RADIO_EVENT_CONFIG MUST be called once the
+         * configuration is applied or a failure occurs or after a time out.
+         */
+        virtual int openTuner(const radio_hal_band_config_t *config,
+                        bool audio,
+                        sp<TunerCallbackInterface> callback,
+                        sp<TunerInterface>& tuner) = 0;
+
+        /*
+         * Close a tuner interface.
+         * If the last tuner is closed, the radio module is deactivated.
+         *
+         * arguments:
+         * - tuner: the tuner interface to close
+         *
+         * returns:
+         *  0 if powered down successfully.
+         *  -EINVAL if an invalid argument is passed
+         *  -ENOSYS if called out of sequence
+         */
+        virtual int closeTuner(sp<TunerInterface>& tuner) = 0;
+
+protected:
+        RadioInterface() {}
+        virtual     ~RadioInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_RADIO_INTERFACE_H
diff --git a/services/radio/RadioService.cpp b/services/radio/RadioService.cpp
index 5a3f750..beb7c09 100644
--- a/services/radio/RadioService.cpp
+++ b/services/radio/RadioService.cpp
@@ -34,6 +34,7 @@
 #include <binder/IServiceManager.h>
 #include <binder/MemoryBase.h>
 #include <binder/MemoryHeapBase.h>
+#include <binder/PermissionCache.h>
 #include <hardware/radio.h>
 #include <media/AudioSystem.h>
 #include "RadioService.h"
@@ -43,6 +44,8 @@
 
 static const char kRadioTunerAudioDeviceName[] = "Radio tuner source";
 
+static const String16 RADIO_PERMISSION("android.permission.ACCESS_FM_RADIO");
+
 RadioService::RadioService()
     : BnRadioService(), mNextUniqueId(1)
 {
@@ -51,31 +54,15 @@
 
 void RadioService::onFirstRef()
 {
-    const hw_module_t *mod;
-    int rc;
-    struct radio_hw_device *dev;
-
     ALOGI("%s", __FUNCTION__);
 
-    rc = hw_get_module_by_class(RADIO_HARDWARE_MODULE_ID, RADIO_HARDWARE_MODULE_ID_FM, &mod);
-    if (rc != 0) {
-        ALOGE("couldn't load radio module %s.%s (%s)",
-              RADIO_HARDWARE_MODULE_ID, "primary", strerror(-rc));
-        return;
-    }
-    rc = radio_hw_device_open(mod, &dev);
-    if (rc != 0) {
-        ALOGE("couldn't open radio hw device in %s.%s (%s)",
-              RADIO_HARDWARE_MODULE_ID, "primary", strerror(-rc));
-        return;
-    }
-    if (dev->common.version != RADIO_DEVICE_API_VERSION_CURRENT) {
-        ALOGE("wrong radio hw device version %04x", dev->common.version);
-        return;
-    }
+    sp<RadioInterface> dev = RadioInterface::connectModule(RADIO_CLASS_AM_FM);
 
+    if (dev == 0) {
+        return;
+    }
     struct radio_hal_properties halProperties;
-    rc = dev->get_properties(dev, &halProperties);
+    int rc = dev->getProperties(&halProperties);
     if (rc != 0) {
         ALOGE("could not read implementation properties");
         return;
@@ -84,31 +71,32 @@
     radio_properties_t properties;
     properties.handle =
             (radio_handle_t)android_atomic_inc(&mNextUniqueId);
-
-    ALOGI("loaded default module %s, handle %d", properties.product, properties.handle);
-
     convertProperties(&properties, &halProperties);
+
+    ALOGI("loaded default module %s, ver %s, handle %d", properties.product,
+        properties.version, properties.handle);
+
     sp<Module> module = new Module(dev, properties);
     mModules.add(properties.handle, module);
 }
 
 RadioService::~RadioService()
 {
-    for (size_t i = 0; i < mModules.size(); i++) {
-        radio_hw_device_close(mModules.valueAt(i)->hwDevice());
-    }
 }
 
 status_t RadioService::listModules(struct radio_properties *properties,
                              uint32_t *numModules)
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     ALOGV("listModules");
 
     AutoMutex lock(mServiceLock);
     if (numModules == NULL || (*numModules != 0 && properties == NULL)) {
         return BAD_VALUE;
     }
-    size_t maxModules = *numModules;
+    uint32_t maxModules = *numModules;
     *numModules = mModules.size();
     for (size_t i = 0; i < mModules.size() && i < maxModules; i++) {
         properties[i] = mModules.valueAt(i)->properties();
@@ -122,6 +110,9 @@
                         bool withAudio,
                         sp<IRadio>& radio)
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     ALOGV("%s %d config %p withAudio %d", __FUNCTION__, handle, config, withAudio);
 
     AutoMutex lock(mServiceLock);
@@ -192,16 +183,6 @@
 }
 
 
-// static
-void RadioService::callback(radio_hal_event_t *halEvent, void *cookie)
-{
-    CallbackThread *callbackThread = (CallbackThread *)cookie;
-    if (callbackThread == NULL) {
-        return;
-    }
-    callbackThread->sendEvent(halEvent);
-}
-
 /* static */
 void RadioService::convertProperties(radio_properties_t *properties,
                                      const radio_hal_properties_t *halProperties)
@@ -305,32 +286,40 @@
 {
     sp<IMemory> eventMemory;
 
-    size_t headerSize =
-            (sizeof(struct radio_event) + sizeof(unsigned int) - 1) /sizeof(unsigned int);
-    size_t metadataSize = 0;
+    // The event layout in shared memory is:
+    // sizeof(struct radio_event) bytes : the event itself
+    // 4 bytes                          : metadata size or 0
+    // N bytes                          : metadata if present
+    uint32_t metadataOffset = sizeof(struct radio_event) + sizeof(uint32_t);
+    uint32_t metadataSize = 0;
+
     switch (halEvent->type) {
     case RADIO_EVENT_TUNED:
     case RADIO_EVENT_AF_SWITCH:
         if (radio_metadata_check(halEvent->info.metadata) == 0) {
-            metadataSize = radio_metadata_get_size(halEvent->info.metadata);
+            metadataSize = (uint32_t)radio_metadata_get_size(halEvent->info.metadata);
         }
         break;
     case RADIO_EVENT_METADATA:
         if (radio_metadata_check(halEvent->metadata) != 0) {
             return eventMemory;
         }
-        metadataSize = radio_metadata_get_size(halEvent->metadata);
+        metadataSize = (uint32_t)radio_metadata_get_size(halEvent->metadata);
         break;
     default:
         break;
     }
-    size_t size = headerSize + metadataSize;
-    eventMemory = mMemoryDealer->allocate(size);
+
+    eventMemory = mMemoryDealer->allocate(metadataOffset + metadataSize);
     if (eventMemory == 0 || eventMemory->pointer() == NULL) {
         eventMemory.clear();
         return eventMemory;
     }
+
     struct radio_event *event = (struct radio_event *)eventMemory->pointer();
+
+    *(uint32_t *)((uint8_t *)event + metadataOffset - sizeof(uint32_t)) = metadataSize;
+
     event->type = halEvent->type;
     event->status = halEvent->status;
 
@@ -342,10 +331,7 @@
     case RADIO_EVENT_AF_SWITCH:
         event->info = halEvent->info;
         if (metadataSize != 0) {
-            memcpy((char *)event + headerSize, halEvent->info.metadata, metadataSize);
-            // replace meta data pointer by offset while in shared memory so that receiving side
-            // can restore the pointer in destination process.
-            event->info.metadata = (radio_metadata_t *)headerSize;
+            memcpy((uint8_t *)event + metadataOffset, halEvent->info.metadata, metadataSize);
         }
         break;
     case RADIO_EVENT_TA:
@@ -355,10 +341,9 @@
         event->on = halEvent->on;
         break;
     case RADIO_EVENT_METADATA:
-        memcpy((char *)event + headerSize, halEvent->metadata, metadataSize);
-        // replace meta data pointer by offset while in shared memory so that receiving side
-        // can restore the pointer in destination process.
-        event->metadata = (radio_metadata_t *)headerSize;
+        if (metadataSize != 0) {
+            memcpy((uint8_t *)event + metadataOffset, halEvent->metadata, metadataSize);
+        }
         break;
     case RADIO_EVENT_HW_FAILURE:
     default:
@@ -385,12 +370,13 @@
 #undef LOG_TAG
 #define LOG_TAG "RadioService::Module"
 
-RadioService::Module::Module(radio_hw_device* hwDevice, radio_properties properties)
+RadioService::Module::Module(sp<RadioInterface> hwDevice, radio_properties properties)
  : mHwDevice(hwDevice), mProperties(properties), mMute(true)
 {
 }
 
 RadioService::Module::~Module() {
+    mHwDevice.clear();
     mModuleClients.clear();
 }
 
@@ -404,10 +390,15 @@
                                     bool audio)
 {
     ALOGV("addClient() %p config %p product %s", this, config, mProperties.product);
+
     AutoMutex lock(mLock);
     sp<ModuleClient> moduleClient;
     int ret;
 
+    if (mHwDevice == 0) {
+        return moduleClient;
+    }
+
     for (size_t i = 0; i < mModuleClients.size(); i++) {
         if (mModuleClients[i]->client() == client) {
             // client already connected: reject
@@ -464,7 +455,7 @@
         }
     }
 
-    const struct radio_tuner *halTuner;
+    sp<TunerInterface> halTuner;
     sp<ModuleClient> preemtedClient;
     if (audio) {
         if (allocatedAudio >= mProperties.num_audio_sources) {
@@ -484,18 +475,19 @@
     }
     if (preemtedClient != 0) {
         halTuner = preemtedClient->getTuner();
-        preemtedClient->setTuner(NULL);
-        mHwDevice->close_tuner(mHwDevice, halTuner);
+        sp<TunerInterface> clear;
+        preemtedClient->setTuner(clear);
+        mHwDevice->closeTuner(halTuner);
         if (preemtedClient->audio()) {
             notifyDeviceConnection(false, "");
         }
     }
 
-    ret = mHwDevice->open_tuner(mHwDevice, &halConfig, audio,
-                                RadioService::callback, moduleClient->callbackThread().get(),
-                                &halTuner);
+    ret = mHwDevice->openTuner(&halConfig, audio,
+                               moduleClient,
+                               halTuner);
     if (ret == 0) {
-        ALOGV("addClient() setTuner %p", halTuner);
+        ALOGV("addClient() setTuner %p", halTuner.get());
         moduleClient->setTuner(halTuner);
         mModuleClients.add(moduleClient);
         if (audio) {
@@ -527,12 +519,15 @@
     }
 
     mModuleClients.removeAt(index);
-    const struct radio_tuner *halTuner = moduleClient->getTuner();
+    sp<TunerInterface> halTuner = moduleClient->getTuner();
     if (halTuner == NULL) {
         return;
     }
 
-    mHwDevice->close_tuner(mHwDevice, halTuner);
+    if (mHwDevice != 0) {
+        mHwDevice->closeTuner(halTuner);
+    }
+
     if (moduleClient->audio()) {
         notifyDeviceConnection(false, "");
     }
@@ -543,6 +538,10 @@
         return;
     }
 
+    if (mHwDevice == 0) {
+        return;
+    }
+
     // Tuner reallocation logic:
     // When a client is removed and was controlling a tuner, this tuner will be allocated to a
     // previously preempted client. This client will be notified by a callback with
@@ -591,9 +590,9 @@
     ALOG_ASSERT(youngestClient != 0, "removeClient() removed client no candidate found for tuner");
 
     struct radio_hal_band_config halConfig = youngestClient->halConfig();
-    ret = mHwDevice->open_tuner(mHwDevice, &halConfig, youngestClient->audio(),
-                                RadioService::callback, moduleClient->callbackThread().get(),
-                                &halTuner);
+    ret = mHwDevice->openTuner(&halConfig, youngestClient->audio(),
+                                moduleClient,
+                                halTuner);
 
     if (ret == 0) {
         youngestClient->setTuner(halTuner);
@@ -646,7 +645,7 @@
                                          const sp<IRadioClient>& client,
                                          const struct radio_band_config *config,
                                          bool audio)
- : mModule(module), mClient(client), mConfig(*config), mAudio(audio), mTuner(NULL)
+ : mModule(module), mClient(client), mConfig(*config), mAudio(audio), mTuner(0)
 {
 }
 
@@ -666,6 +665,11 @@
     }
 }
 
+void RadioService::ModuleClient::onEvent(radio_hal_event_t *halEvent)
+{
+    mCallbackThread->sendEvent(halEvent);
+}
+
 status_t RadioService::ModuleClient::dump(int fd __unused,
                                              const Vector<String16>& args __unused) {
     String8 result;
@@ -696,14 +700,14 @@
     return mConfig.band;
 }
 
-const struct radio_tuner *RadioService::ModuleClient::getTuner() const
+sp<TunerInterface>& RadioService::ModuleClient::getTuner()
 {
     AutoMutex lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
     return mTuner;
 }
 
-void RadioService::ModuleClient::setTuner(const struct radio_tuner *tuner)
+void RadioService::ModuleClient::setTuner(sp<TunerInterface>& tuner)
 {
     ALOGV("%s %p", __FUNCTION__, this);
 
@@ -714,7 +718,7 @@
     radio_hal_event_t event;
     event.type = RADIO_EVENT_CONTROL;
     event.status = 0;
-    event.on = mTuner != NULL;
+    event.on = mTuner != 0;
     mCallbackThread->sendEvent(&event);
     ALOGV("%s DONE", __FUNCTION__);
 
@@ -722,14 +726,17 @@
 
 status_t RadioService::ModuleClient::setConfiguration(const struct radio_band_config *config)
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     AutoMutex lock(mLock);
     status_t status = NO_ERROR;
     ALOGV("%s locked", __FUNCTION__);
 
-    if (mTuner != NULL) {
+    if (mTuner != 0) {
         struct radio_hal_band_config halConfig;
         halConfig = config->band;
-        status = (status_t)mTuner->set_configuration(mTuner, &halConfig);
+        status = (status_t)mTuner->setConfiguration(&halConfig);
         if (status == NO_ERROR) {
             mConfig = *config;
         }
@@ -743,13 +750,16 @@
 
 status_t RadioService::ModuleClient::getConfiguration(struct radio_band_config *config)
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     AutoMutex lock(mLock);
     status_t status = NO_ERROR;
     ALOGV("%s locked", __FUNCTION__);
 
-    if (mTuner != NULL) {
+    if (mTuner != 0) {
         struct radio_hal_band_config halConfig;
-        status = (status_t)mTuner->get_configuration(mTuner, &halConfig);
+        status = (status_t)mTuner->getConfiguration(&halConfig);
         if (status == NO_ERROR) {
             mConfig.band = halConfig;
         }
@@ -761,11 +771,14 @@
 
 status_t RadioService::ModuleClient::setMute(bool mute)
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     sp<Module> module;
     {
         Mutex::Autolock _l(mLock);
         ALOGV("%s locked", __FUNCTION__);
-        if (mTuner == NULL || !mAudio) {
+        if (mTuner == 0 || !mAudio) {
             return INVALID_OPERATION;
         }
         module = mModule.promote();
@@ -779,6 +792,9 @@
 
 status_t RadioService::ModuleClient::getMute(bool *mute)
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     sp<Module> module;
     {
         Mutex::Autolock _l(mLock);
@@ -793,11 +809,14 @@
 
 status_t RadioService::ModuleClient::scan(radio_direction_t direction, bool skipSubChannel)
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     AutoMutex lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
     status_t status;
-    if (mTuner != NULL) {
-        status = (status_t)mTuner->scan(mTuner, direction, skipSubChannel);
+    if (mTuner != 0) {
+        status = (status_t)mTuner->scan(direction, skipSubChannel);
     } else {
         status = INVALID_OPERATION;
     }
@@ -806,24 +825,30 @@
 
 status_t RadioService::ModuleClient::step(radio_direction_t direction, bool skipSubChannel)
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     AutoMutex lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
     status_t status;
-    if (mTuner != NULL) {
-        status = (status_t)mTuner->step(mTuner, direction, skipSubChannel);
+    if (mTuner != 0) {
+        status = (status_t)mTuner->step(direction, skipSubChannel);
     } else {
         status = INVALID_OPERATION;
     }
     return status;
 }
 
-status_t RadioService::ModuleClient::tune(unsigned int channel, unsigned int subChannel)
+status_t RadioService::ModuleClient::tune(uint32_t channel, uint32_t subChannel)
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     AutoMutex lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
     status_t status;
-    if (mTuner != NULL) {
-        status = (status_t)mTuner->tune(mTuner, channel, subChannel);
+    if (mTuner != 0) {
+        status = (status_t)mTuner->tune(channel, subChannel);
     } else {
         status = INVALID_OPERATION;
     }
@@ -832,11 +857,14 @@
 
 status_t RadioService::ModuleClient::cancel()
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     AutoMutex lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
     status_t status;
-    if (mTuner != NULL) {
-        status = (status_t)mTuner->cancel(mTuner);
+    if (mTuner != 0) {
+        status = (status_t)mTuner->cancel();
     } else {
         status = INVALID_OPERATION;
     }
@@ -845,22 +873,29 @@
 
 status_t RadioService::ModuleClient::getProgramInformation(struct radio_program_info *info)
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     AutoMutex lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
     status_t status;
     if (mTuner != NULL) {
-        status = (status_t)mTuner->get_program_information(mTuner, info);
+        status = (status_t)mTuner->getProgramInformation(info);
     } else {
         status = INVALID_OPERATION;
     }
+
     return status;
 }
 
 status_t RadioService::ModuleClient::hasControl(bool *hasControl)
 {
+    if (!PermissionCache::checkCallingPermission(RADIO_PERMISSION)) {
+        return PERMISSION_DENIED;
+    }
     Mutex::Autolock lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
-    *hasControl = mTuner != NULL;
+    *hasControl = mTuner != 0;
     return NO_ERROR;
 }
 
diff --git a/services/radio/RadioService.h b/services/radio/RadioService.h
index 49feda6..444eb7a 100644
--- a/services/radio/RadioService.h
+++ b/services/radio/RadioService.h
@@ -27,6 +27,9 @@
 #include <radio/IRadioClient.h>
 #include <system/radio.h>
 #include <hardware/radio.h>
+#include "RadioInterface.h"
+#include "TunerInterface.h"
+#include "TunerCallbackInterface.h"
 
 namespace android {
 
@@ -66,7 +69,7 @@
     class Module : public virtual RefBase {
     public:
 
-       Module(radio_hw_device* hwDevice,
+       Module(sp<RadioInterface> hwDevice,
               struct radio_properties properties);
 
        virtual ~Module();
@@ -83,7 +86,7 @@
 
        virtual status_t dump(int fd, const Vector<String16>& args);
 
-       const struct radio_hw_device *hwDevice() const { return mHwDevice; }
+       sp<RadioInterface> hwDevice() const { return mHwDevice; }
        const struct radio_properties properties() const { return mProperties; }
        const struct radio_band_config *getDefaultConfig() const ;
 
@@ -92,7 +95,7 @@
        void notifyDeviceConnection(bool connected, const char *address);
 
         Mutex                         mLock;          // protects  mModuleClients
-        const struct radio_hw_device  *mHwDevice;     // HAL hardware device
+        sp<RadioInterface>            mHwDevice;      // HAL hardware device
         const struct radio_properties mProperties;    // cached hardware module properties
         Vector< sp<ModuleClient> >    mModuleClients; // list of attached clients
         bool                          mMute;          // radio audio source state
@@ -103,7 +106,7 @@
     class CallbackThread : public Thread {
     public:
 
-        CallbackThread(const wp<ModuleClient>& moduleClient);
+        explicit CallbackThread(const wp<ModuleClient>& moduleClient);
 
         virtual ~CallbackThread();
 
@@ -128,7 +131,8 @@
     }; // class CallbackThread
 
     class ModuleClient : public BnRadio,
-                   public IBinder::DeathRecipient {
+                   public IBinder::DeathRecipient,
+                   public TunerCallbackInterface {
     public:
 
        ModuleClient(const sp<Module>& module,
@@ -167,8 +171,8 @@
                wp<Module> module() const { return mModule; }
                radio_hal_band_config_t halConfig() const;
                sp<CallbackThread> callbackThread() const { return mCallbackThread; }
-               void setTuner(const struct radio_tuner *tuner);
-               const struct radio_tuner *getTuner() const;
+               void setTuner(sp<TunerInterface>& tuner);
+               sp<TunerInterface>& getTuner();
                bool audio() const { return mAudio; }
 
                void onCallbackEvent(const sp<IMemory>& event);
@@ -179,6 +183,9 @@
        // IBinder::DeathRecipient implementation
        virtual void        binderDied(const wp<IBinder> &who);
 
+       // TunerCallbackInterface
+       virtual void onEvent(radio_hal_event_t *event);
+
     private:
 
         mutable Mutex               mLock;           // protects mClient, mConfig and mTuner
@@ -187,7 +194,7 @@
         radio_band_config_t         mConfig;         // current band configuration
         sp<CallbackThread>          mCallbackThread; // event callback thread
         const bool                  mAudio;
-        const struct radio_tuner    *mTuner;        // HAL tuner interface. NULL indicates that
+        sp<TunerInterface>          mTuner;        // HAL tuner interface. NULL indicates that
                                                     // this client does not have control on any
                                                     // tuner
     }; // class ModuleClient
diff --git a/services/radio/TunerCallbackInterface.h b/services/radio/TunerCallbackInterface.h
new file mode 100644
index 0000000..4973cce
--- /dev/null
+++ b/services/radio/TunerCallbackInterface.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_TUNER_CALLBACK_INTERFACE_H
+#define ANDROID_HARDWARE_TUNER_CALLBACK_INTERFACE_H
+
+#include <utils/RefBase.h>
+#include <system/radio.h>
+
+namespace android {
+
+class TunerCallbackInterface : public virtual RefBase
+{
+public:
+    virtual void onEvent(radio_hal_event_t *event) = 0;
+
+protected:
+                 TunerCallbackInterface() {}
+    virtual      ~TunerCallbackInterface() {}
+
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_TUNER_CALLBACK_INTERFACE_H
diff --git a/services/radio/TunerInterface.h b/services/radio/TunerInterface.h
new file mode 100644
index 0000000..4e657d3
--- /dev/null
+++ b/services/radio/TunerInterface.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_TUNER_INTERFACE_H
+#define ANDROID_HARDWARE_TUNER_INTERFACE_H
+
+#include <utils/RefBase.h>
+#include <system/radio.h>
+
+namespace android {
+
+class TunerInterface : public virtual RefBase
+{
+public:
+        /*
+         * Apply current radio band configuration (band, range, channel spacing ...).
+         *
+         * arguments:
+         * - config: the band configuration to apply
+         *
+         * returns:
+         *  0 if configuration could be applied
+         *  -EINVAL if configuration requested is invalid
+         *
+         * Automatically cancels pending scan, step or tune.
+         *
+         * Callback function with event RADIO_EVENT_CONFIG MUST be called once the
+         * configuration is applied or a failure occurs or after a time out.
+         */
+    virtual int setConfiguration(const radio_hal_band_config_t *config) = 0;
+
+        /*
+         * Retrieve current radio band configuration.
+         *
+         * arguments:
+         * - config: where to return the band configuration
+         *
+         * returns:
+         *  0 if valid configuration is returned
+         *  -EINVAL if invalid arguments are passed
+         */
+    virtual int getConfiguration(radio_hal_band_config_t *config) = 0;
+
+        /*
+         * Start scanning up to next valid station.
+         * Must be called when a valid configuration has been applied.
+         *
+         * arguments:
+         * - direction: RADIO_DIRECTION_UP or RADIO_DIRECTION_DOWN
+         * - skip_sub_channel: valid for HD radio or digital radios only: ignore sub channels
+         *  (e.g SPS for HD radio).
+         *
+         * returns:
+         *  0 if scan successfully started
+         *  -ENOSYS if called out of sequence
+         *  -ENODEV if another error occurs
+         *
+         * Automatically cancels pending scan, step or tune.
+         *
+         *  Callback function with event RADIO_EVENT_TUNED MUST be called once
+         *  locked on a station or after a time out or full frequency scan if
+         *  no station found. The event status should indicate if a valid station
+         *  is tuned or not.
+         */
+    virtual int scan(radio_direction_t direction, bool skip_sub_channel) = 0;
+
+        /*
+         * Move one channel spacing up or down.
+         * Must be called when a valid configuration has been applied.
+         *
+         * arguments:
+         * - direction: RADIO_DIRECTION_UP or RADIO_DIRECTION_DOWN
+         * - skip_sub_channel: valid for HD radio or digital radios only: ignore sub channels
+         *  (e.g SPS for HD radio).
+         *
+         * returns:
+         *  0 if step successfully started
+         *  -ENOSYS if called out of sequence
+         *  -ENODEV if another error occurs
+         *
+         * Automatically cancels pending scan, step or tune.
+         *
+         * Callback function with event RADIO_EVENT_TUNED MUST be called once
+         * step completed or after a time out. The event status should indicate
+         * if a valid station is tuned or not.
+         */
+    virtual int step(radio_direction_t direction, bool skip_sub_channel) = 0;
+
+        /*
+         * Tune to specified frequency.
+         * Must be called when a valid configuration has been applied.
+         *
+         * arguments:
+         * - channel: channel to tune to. A frequency in kHz for AM/FM/HD Radio bands.
+         * - sub_channel: valid for HD radio or digital radios only: (e.g SPS number for HD radio).
+         *
+         * returns:
+         *  0 if tune successfully started
+         *  -ENOSYS if called out of sequence
+         *  -EINVAL if invalid arguments are passed
+         *  -ENODEV if another error occurs
+         *
+         * Automatically cancels pending scan, step or tune.
+         *
+         * Callback function with event RADIO_EVENT_TUNED MUST be called once
+         * tuned or after a time out. The event status should indicate
+         * if a valid station is tuned or not.
+         */
+    virtual int tune(unsigned int channel, unsigned int sub_channel) = 0;
+
+        /*
+         * Cancel a scan, step or tune operation.
+         * Must be called while a scan, step or tune operation is pending
+         * (callback not yet sent).
+         *
+         * returns:
+         *  0 if successful
+         *  -ENOSYS if called out of sequence
+         *  -ENODEV if another error occurs
+         *
+         * The callback is not sent.
+         */
+    virtual int cancel() = 0;
+
+        /*
+         * Retrieve current station information.
+         *
+         * arguments:
+         * - info: where to return the program info.
+         * If info->metadata is NULL. no meta data should be returned.
+         * If meta data must be returned, they should be added to or cloned to
+         * info->metadata, not passed from a newly created meta data buffer.
+         *
+         * returns:
+         *  0 if tuned and information available
+         *  -EINVAL if invalid arguments are passed
+         *  -ENODEV if another error occurs
+         */
+    virtual int getProgramInformation(radio_program_info_t *info) = 0;
+
+protected:
+                TunerInterface() {}
+    virtual     ~TunerInterface() {}
+
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_TUNER_INTERFACE_H
diff --git a/services/soundtrigger/Android.mk b/services/soundtrigger/Android.mk
index c55ac7f..e21aae3 100644
--- a/services/soundtrigger/Android.mk
+++ b/services/soundtrigger/Android.mk
@@ -16,8 +16,10 @@
 
 include $(CLEAR_VARS)
 
-
 ifeq ($(SOUND_TRIGGER_USE_STUB_MODULE), 1)
+    ifneq ($(USE_LEGACY_LOCAL_AUDIO_HAL), true)
+        $(error Requires building with USE_LEGACY_LOCAL_AUDIO_HAL=true)
+    endif
     LOCAL_CFLAGS += -DSOUND_TRIGGER_USE_STUB_MODULE
 endif
 
@@ -25,22 +27,42 @@
     SoundTriggerHwService.cpp
 
 LOCAL_SHARED_LIBRARIES:= \
-    libui \
     liblog \
     libutils \
     libbinder \
     libcutils \
     libhardware \
     libsoundtrigger \
-    libmedia \
+    libaudioclient \
     libserviceutility
 
+
+ifeq ($(USE_LEGACY_LOCAL_AUDIO_HAL),true)
+# libhardware configuration
+LOCAL_SRC_FILES +=               \
+    SoundTriggerHalLegacy.cpp
+else
+# Treble configuration
+LOCAL_SRC_FILES +=               \
+    SoundTriggerHalHidl.cpp
+
+LOCAL_SHARED_LIBRARIES += \
+    libhwbinder \
+    libhidlbase \
+    libhidltransport \
+    libbase \
+    libaudiohal \
+    android.hardware.soundtrigger@2.0 \
+    android.hardware.audio.common@2.0
+endif
+
+
 LOCAL_C_INCLUDES += \
     $(TOPDIR)frameworks/av/services/audioflinger
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
 
-LOCAL_CFLAGS := -Wall -Werror
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_MODULE:= libsoundtriggerservice
 
diff --git a/services/soundtrigger/SoundTriggerHalHidl.cpp b/services/soundtrigger/SoundTriggerHalHidl.cpp
new file mode 100644
index 0000000..0cd5cf7
--- /dev/null
+++ b/services/soundtrigger/SoundTriggerHalHidl.cpp
@@ -0,0 +1,604 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "SoundTriggerHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <media/audiohal/hidl/HalDeathHandler.h>
+#include <utils/Log.h>
+#include "SoundTriggerHalHidl.h"
+#include <hwbinder/IPCThreadState.h>
+#include <hwbinder/ProcessState.h>
+
+namespace android {
+
+using android::hardware::Return;
+using android::hardware::ProcessState;
+using android::hardware::audio::common::V2_0::AudioDevice;
+
+/* static */
+sp<SoundTriggerHalInterface> SoundTriggerHalInterface::connectModule(const char *moduleName)
+{
+    return new SoundTriggerHalHidl(moduleName);
+}
+
+int SoundTriggerHalHidl::getProperties(struct sound_trigger_properties *properties)
+{
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    ISoundTriggerHw::Properties halProperties;
+    Return<void> hidlReturn;
+    int ret;
+    {
+        AutoMutex lock(mHalLock);
+        hidlReturn = soundtrigger->getProperties([&](int rc, auto res) {
+            ret = rc;
+            halProperties = res;
+            ALOGI("getProperties res implementor %s", res.implementor.c_str());
+        });
+    }
+
+    if (hidlReturn.isOk()) {
+        if (ret == 0) {
+            convertPropertiesFromHal(properties, &halProperties);
+        }
+    } else {
+        ALOGE("getProperties error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+    ALOGI("getProperties ret %d", ret);
+    return ret;
+}
+
+int SoundTriggerHalHidl::loadSoundModel(struct sound_trigger_sound_model *sound_model,
+                        sound_model_callback_t callback,
+                        void *cookie,
+                        sound_model_handle_t *handle)
+{
+    if (handle == NULL) {
+        return -EINVAL;
+    }
+
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    uint32_t modelId;
+    {
+        AutoMutex lock(mLock);
+        do {
+            modelId = nextUniqueId();
+            ALOGI("loadSoundModel modelId %u", modelId);
+            sp<SoundModel> model = mSoundModels.valueFor(modelId);
+            ALOGI("loadSoundModel model %p", model.get());
+        } while (mSoundModels.valueFor(modelId) != 0 && modelId != 0);
+    }
+    LOG_ALWAYS_FATAL_IF(modelId == 0,
+                        "loadSoundModel(): wrap around in sound model IDs, num loaded models %zd",
+                        mSoundModels.size());
+
+    ISoundTriggerHw::SoundModel *halSoundModel =
+            convertSoundModelToHal(sound_model);
+    if (halSoundModel == NULL) {
+        return -EINVAL;
+    }
+
+    Return<void> hidlReturn;
+    int ret;
+    SoundModelHandle halHandle;
+    {
+        AutoMutex lock(mHalLock);
+        if (sound_model->type == SOUND_MODEL_TYPE_KEYPHRASE) {
+            hidlReturn = soundtrigger->loadPhraseSoundModel(
+                    *(const ISoundTriggerHw::PhraseSoundModel *)halSoundModel,
+                    this, modelId, [&](int32_t retval, auto res) {
+                ret = retval;
+                halHandle = res;
+            });
+
+        } else {
+            hidlReturn = soundtrigger->loadSoundModel(*halSoundModel,
+                    this, modelId, [&](int32_t retval, auto res) {
+                ret = retval;
+                halHandle = res;
+            });
+        }
+    }
+
+    delete halSoundModel;
+
+    if (hidlReturn.isOk()) {
+        if (ret == 0) {
+            AutoMutex lock(mLock);
+            *handle = (sound_model_handle_t)modelId;
+            sp<SoundModel> model = new SoundModel(*handle, callback, cookie, halHandle);
+            mSoundModels.add(*handle, model);
+        }
+    } else {
+        ALOGE("loadSoundModel error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+
+    return ret;
+}
+
+int SoundTriggerHalHidl::unloadSoundModel(sound_model_handle_t handle)
+{
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    sp<SoundModel> model = removeModel(handle);
+    if (model == 0) {
+        ALOGE("unloadSoundModel model not found for handle %u", handle);
+        return -EINVAL;
+    }
+
+    Return<int32_t> hidlReturn(0);
+    {
+        AutoMutex lock(mHalLock);
+        hidlReturn = soundtrigger->unloadSoundModel(model->mHalHandle);
+    }
+
+    if (!hidlReturn.isOk()) {
+        ALOGE("unloadSoundModel error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+
+    return hidlReturn;
+}
+
+int SoundTriggerHalHidl::startRecognition(sound_model_handle_t handle,
+                         const struct sound_trigger_recognition_config *config,
+                         recognition_callback_t callback,
+                         void *cookie)
+{
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    sp<SoundModel> model = getModel(handle);
+    if (model == 0) {
+        ALOGE("startRecognition model not found for handle %u", handle);
+        return -EINVAL;
+    }
+
+    model->mRecognitionCallback = callback;
+    model->mRecognitionCookie = cookie;
+
+    ISoundTriggerHw::RecognitionConfig *halConfig =
+            convertRecognitionConfigToHal(config);
+
+    Return<int32_t> hidlReturn(0);
+    {
+        AutoMutex lock(mHalLock);
+        hidlReturn = soundtrigger->startRecognition(model->mHalHandle, *halConfig, this, handle);
+    }
+
+    delete halConfig;
+
+    if (!hidlReturn.isOk()) {
+        ALOGE("startRecognition error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+    return hidlReturn;
+}
+
+int SoundTriggerHalHidl::stopRecognition(sound_model_handle_t handle)
+{
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    sp<SoundModel> model = getModel(handle);
+    if (model == 0) {
+        ALOGE("stopRecognition model not found for handle %u", handle);
+        return -EINVAL;
+    }
+
+    Return<int32_t> hidlReturn(0);
+    {
+        AutoMutex lock(mHalLock);
+        hidlReturn = soundtrigger->stopRecognition(model->mHalHandle);
+    }
+
+    if (!hidlReturn.isOk()) {
+        ALOGE("stopRecognition error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+    return hidlReturn;
+}
+
+int SoundTriggerHalHidl::stopAllRecognitions()
+{
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    Return<int32_t> hidlReturn(0);
+    {
+        AutoMutex lock(mHalLock);
+        hidlReturn = soundtrigger->stopAllRecognitions();
+    }
+
+    if (!hidlReturn.isOk()) {
+        ALOGE("stopAllRecognitions error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+    return hidlReturn;
+}
+
+SoundTriggerHalHidl::SoundTriggerHalHidl(const char *moduleName)
+    : mModuleName(moduleName), mNextUniqueId(1)
+{
+    LOG_ALWAYS_FATAL_IF(strcmp(mModuleName, "primary") != 0,
+            "Treble soundtrigger only supports primary module");
+}
+
+SoundTriggerHalHidl::~SoundTriggerHalHidl()
+{
+}
+
+sp<ISoundTriggerHw> SoundTriggerHalHidl::getService()
+{
+    AutoMutex lock(mLock);
+    if (mISoundTrigger == 0) {
+        if (mModuleName == NULL) {
+            mModuleName = "primary";
+        }
+        mISoundTrigger = ISoundTriggerHw::getService();
+        if (mISoundTrigger != 0) {
+            mISoundTrigger->linkToDeath(HalDeathHandler::getInstance(), 0 /*cookie*/);
+        }
+    }
+    return mISoundTrigger;
+}
+
+sp<SoundTriggerHalHidl::SoundModel> SoundTriggerHalHidl::getModel(sound_model_handle_t handle)
+{
+    AutoMutex lock(mLock);
+    return mSoundModels.valueFor(handle);
+}
+
+sp<SoundTriggerHalHidl::SoundModel> SoundTriggerHalHidl::removeModel(sound_model_handle_t handle)
+{
+    AutoMutex lock(mLock);
+    sp<SoundModel> model = mSoundModels.valueFor(handle);
+    mSoundModels.removeItem(handle);
+    return model;
+}
+
+uint32_t SoundTriggerHalHidl::nextUniqueId()
+{
+    return (uint32_t) atomic_fetch_add_explicit(&mNextUniqueId,
+                (uint_fast32_t) 1, memory_order_acq_rel);
+}
+
+void SoundTriggerHalHidl::convertUuidToHal(Uuid *halUuid,
+                                           const sound_trigger_uuid_t *uuid)
+{
+    halUuid->timeLow = uuid->timeLow;
+    halUuid->timeMid = uuid->timeMid;
+    halUuid->versionAndTimeHigh = uuid->timeHiAndVersion;
+    halUuid->variantAndClockSeqHigh = uuid->clockSeq;
+    memcpy(halUuid->node.data(), &uuid->node[0], sizeof(uuid->node));
+}
+
+void SoundTriggerHalHidl::convertUuidFromHal(sound_trigger_uuid_t *uuid,
+                                             const Uuid *halUuid)
+{
+    uuid->timeLow = halUuid->timeLow;
+    uuid->timeMid = halUuid->timeMid;
+    uuid->timeHiAndVersion = halUuid->versionAndTimeHigh;
+    uuid->clockSeq = halUuid->variantAndClockSeqHigh;
+    memcpy(&uuid->node[0], halUuid->node.data(), sizeof(uuid->node));
+}
+
+void SoundTriggerHalHidl::convertPropertiesFromHal(
+        struct sound_trigger_properties *properties,
+        const ISoundTriggerHw::Properties *halProperties)
+{
+    strlcpy(properties->implementor,
+            halProperties->implementor.c_str(), SOUND_TRIGGER_MAX_STRING_LEN);
+    strlcpy(properties->description,
+            halProperties->description.c_str(), SOUND_TRIGGER_MAX_STRING_LEN);
+    properties->version = halProperties->version;
+    convertUuidFromHal(&properties->uuid, &halProperties->uuid);
+    properties->max_sound_models = halProperties->maxSoundModels;
+    properties->max_key_phrases = halProperties->maxKeyPhrases;
+    properties->max_users = halProperties->maxUsers;
+    properties->recognition_modes = halProperties->recognitionModes;
+    properties->capture_transition = (bool)halProperties->captureTransition;
+    properties->max_buffer_ms = halProperties->maxBufferMs;
+    properties->concurrent_capture = (bool)halProperties->concurrentCapture;
+    properties->trigger_in_event = (bool)halProperties->triggerInEvent;
+    properties->power_consumption_mw = halProperties->powerConsumptionMw;
+}
+
+void SoundTriggerHalHidl::convertTriggerPhraseToHal(
+        ISoundTriggerHw::Phrase *halTriggerPhrase,
+        const struct sound_trigger_phrase *triggerPhrase)
+{
+    halTriggerPhrase->id = triggerPhrase->id;
+    halTriggerPhrase->recognitionModes = triggerPhrase->recognition_mode;
+    halTriggerPhrase->users.setToExternal((uint32_t *)&triggerPhrase->users[0], triggerPhrase->num_users);
+    halTriggerPhrase->locale = triggerPhrase->locale;
+    halTriggerPhrase->text = triggerPhrase->text;
+}
+
+ISoundTriggerHw::SoundModel *SoundTriggerHalHidl::convertSoundModelToHal(
+        const struct sound_trigger_sound_model *soundModel)
+{
+    ISoundTriggerHw::SoundModel *halModel = NULL;
+    if (soundModel->type == SOUND_MODEL_TYPE_KEYPHRASE) {
+        ISoundTriggerHw::PhraseSoundModel *halKeyPhraseModel =
+                new ISoundTriggerHw::PhraseSoundModel();
+        struct sound_trigger_phrase_sound_model *keyPhraseModel =
+                (struct sound_trigger_phrase_sound_model *)soundModel;
+        ISoundTriggerHw::Phrase *halPhrases =
+                new ISoundTriggerHw::Phrase[keyPhraseModel->num_phrases];
+
+
+        for (unsigned int i = 0; i < keyPhraseModel->num_phrases; i++) {
+            convertTriggerPhraseToHal(&halPhrases[i],
+                                      &keyPhraseModel->phrases[i]);
+        }
+        halKeyPhraseModel->phrases.setToExternal(halPhrases, keyPhraseModel->num_phrases);
+        // FIXME: transfer buffer ownership. should have a method for that in hidl_vec
+        halKeyPhraseModel->phrases.resize(keyPhraseModel->num_phrases);
+
+        delete[] halPhrases;
+
+        halModel = (ISoundTriggerHw::SoundModel *)halKeyPhraseModel;
+    } else {
+        halModel = new ISoundTriggerHw::SoundModel();
+    }
+    halModel->type = (SoundModelType)soundModel->type;
+    convertUuidToHal(&halModel->uuid, &soundModel->uuid);
+    convertUuidToHal(&halModel->vendorUuid, &soundModel->vendor_uuid);
+    halModel->data.setToExternal((uint8_t *)soundModel + soundModel->data_offset, soundModel->data_size);
+    halModel->data.resize(soundModel->data_size);
+
+    return halModel;
+}
+
+void SoundTriggerHalHidl::convertPhraseRecognitionExtraToHal(
+        PhraseRecognitionExtra *halExtra,
+        const struct sound_trigger_phrase_recognition_extra *extra)
+{
+    halExtra->id = extra->id;
+    halExtra->recognitionModes = extra->recognition_modes;
+    halExtra->confidenceLevel = extra->confidence_level;
+    ConfidenceLevel *halLevels =
+            new ConfidenceLevel[extra->num_levels];
+    for (unsigned int i = 0; i < extra->num_levels; i++) {
+        halLevels[i].userId = extra->levels[i].user_id;
+        halLevels[i].levelPercent = extra->levels[i].level;
+    }
+    halExtra->levels.setToExternal(halLevels, extra->num_levels);
+    // FIXME: transfer buffer ownership. should have a method for that in hidl_vec
+    halExtra->levels.resize(extra->num_levels);
+
+    delete[] halLevels;
+}
+
+
+ISoundTriggerHw::RecognitionConfig *SoundTriggerHalHidl::convertRecognitionConfigToHal(
+        const struct sound_trigger_recognition_config *config)
+{
+    ISoundTriggerHw::RecognitionConfig *halConfig =
+            new ISoundTriggerHw::RecognitionConfig();
+
+    halConfig->captureHandle = config->capture_handle;
+    halConfig->captureDevice = (AudioDevice)config->capture_device;
+    halConfig->captureRequested = (uint32_t)config->capture_requested;
+
+    PhraseRecognitionExtra *halExtras =
+            new PhraseRecognitionExtra[config->num_phrases];
+
+    for (unsigned int i = 0; i < config->num_phrases; i++) {
+        convertPhraseRecognitionExtraToHal(&halExtras[i],
+                                  &config->phrases[i]);
+    }
+    halConfig->phrases.setToExternal(halExtras, config->num_phrases);
+    // FIXME: transfer buffer ownership. should have a method for that in hidl_vec
+    halConfig->phrases.resize(config->num_phrases);
+
+    delete[] halExtras;
+
+    halConfig->data.setToExternal((uint8_t *)config + config->data_offset, config->data_size);
+
+    return halConfig;
+}
+
+
+// ISoundTriggerHwCallback
+::android::hardware::Return<void> SoundTriggerHalHidl::recognitionCallback(
+        const ISoundTriggerHwCallback::RecognitionEvent& halEvent,
+        CallbackCookie cookie)
+{
+    sp<SoundModel> model;
+    {
+        AutoMutex lock(mLock);
+        model = mSoundModels.valueFor((SoundModelHandle)cookie);
+        if (model == 0) {
+            return Return<void>();
+        }
+    }
+    struct sound_trigger_recognition_event *event = convertRecognitionEventFromHal(&halEvent);
+    if (event == NULL) {
+        return Return<void>();
+    }
+    event->model = model->mHandle;
+    model->mRecognitionCallback(event, model->mRecognitionCookie);
+
+    free(event);
+
+    return Return<void>();
+}
+
+::android::hardware::Return<void> SoundTriggerHalHidl::phraseRecognitionCallback(
+        const ISoundTriggerHwCallback::PhraseRecognitionEvent& halEvent,
+        CallbackCookie cookie)
+{
+    sp<SoundModel> model;
+    {
+        AutoMutex lock(mLock);
+        model = mSoundModels.valueFor((SoundModelHandle)cookie);
+        if (model == 0) {
+            return Return<void>();
+        }
+    }
+
+    struct sound_trigger_recognition_event *event = convertRecognitionEventFromHal(
+                                   (const ISoundTriggerHwCallback::RecognitionEvent *)&halEvent);
+    if (event == NULL) {
+        return Return<void>();
+    }
+
+    event->model = model->mHandle;
+    model->mRecognitionCallback(event, model->mRecognitionCookie);
+
+    free(event);
+
+    return Return<void>();
+}
+
+::android::hardware::Return<void> SoundTriggerHalHidl::soundModelCallback(
+        const ISoundTriggerHwCallback::ModelEvent& halEvent,
+        CallbackCookie cookie)
+{
+    sp<SoundModel> model;
+    {
+        AutoMutex lock(mLock);
+        model = mSoundModels.valueFor((SoundModelHandle)cookie);
+        if (model == 0) {
+            return Return<void>();
+        }
+    }
+
+    struct sound_trigger_model_event *event = convertSoundModelEventFromHal(&halEvent);
+    if (event == NULL) {
+        return Return<void>();
+    }
+
+    event->model = model->mHandle;
+    model->mSoundModelCallback(event, model->mSoundModelCookie);
+
+    free(event);
+
+    return Return<void>();
+}
+
+
+struct sound_trigger_model_event *SoundTriggerHalHidl::convertSoundModelEventFromHal(
+                                              const ISoundTriggerHwCallback::ModelEvent *halEvent)
+{
+    struct sound_trigger_model_event *event = (struct sound_trigger_model_event *)malloc(
+            sizeof(struct sound_trigger_model_event) +
+            halEvent->data.size());
+    if (event == NULL) {
+        return NULL;
+    }
+
+    event->status = (int)halEvent->status;
+    // event->model to be set by caller
+    event->data_offset = sizeof(struct sound_trigger_model_event);
+    event->data_size = halEvent->data.size();
+    uint8_t *dst = (uint8_t *)event + event->data_offset;
+    uint8_t *src = (uint8_t *)&halEvent->data[0];
+    memcpy(dst, src, halEvent->data.size());
+
+    return event;
+}
+
+void SoundTriggerHalHidl::convertPhraseRecognitionExtraFromHal(
+        struct sound_trigger_phrase_recognition_extra *extra,
+        const PhraseRecognitionExtra *halExtra)
+{
+    extra->id = halExtra->id;
+    extra->recognition_modes = halExtra->recognitionModes;
+    extra->confidence_level = halExtra->confidenceLevel;
+
+    size_t i;
+    for (i = 0; i < halExtra->levels.size() && i < SOUND_TRIGGER_MAX_USERS; i++) {
+        extra->levels[i].user_id = halExtra->levels[i].userId;
+        extra->levels[i].level = halExtra->levels[i].levelPercent;
+    }
+    extra->num_levels = (unsigned int)i;
+}
+
+
+struct sound_trigger_recognition_event *SoundTriggerHalHidl::convertRecognitionEventFromHal(
+        const ISoundTriggerHwCallback::RecognitionEvent *halEvent)
+{
+    struct sound_trigger_recognition_event *event;
+
+    if (halEvent->type == SoundModelType::KEYPHRASE) {
+        struct sound_trigger_phrase_recognition_event *phraseEvent =
+                (struct sound_trigger_phrase_recognition_event *)malloc(
+                        sizeof(struct sound_trigger_phrase_recognition_event) +
+                        halEvent->data.size());
+        if (phraseEvent == NULL) {
+            return NULL;
+        }
+        const ISoundTriggerHwCallback::PhraseRecognitionEvent *halPhraseEvent =
+                (const ISoundTriggerHwCallback::PhraseRecognitionEvent *)halEvent;
+
+        for (unsigned int i = 0; i < halPhraseEvent->phraseExtras.size(); i++) {
+            convertPhraseRecognitionExtraFromHal(&phraseEvent->phrase_extras[i],
+                                                 &halPhraseEvent->phraseExtras[i]);
+        }
+        phraseEvent->num_phrases = halPhraseEvent->phraseExtras.size();
+        event = (struct sound_trigger_recognition_event *)phraseEvent;
+        event->data_offset = sizeof(sound_trigger_phrase_recognition_event);
+    } else {
+        event = (struct sound_trigger_recognition_event *)malloc(
+                sizeof(struct sound_trigger_recognition_event) + halEvent->data.size());
+        if (event == NULL) {
+            return NULL;
+        }
+        event->data_offset = sizeof(sound_trigger_recognition_event);
+    }
+    event->status = (int)halEvent->status;
+    event->type = (sound_trigger_sound_model_type_t)halEvent->type;
+    // event->model to be set by caller
+    event->capture_available = (bool)halEvent->captureAvailable;
+    event->capture_session = halEvent->captureSession;
+    event->capture_delay_ms = halEvent->captureDelayMs;
+    event->capture_preamble_ms = halEvent->capturePreambleMs;
+    event->trigger_in_data = (bool)halEvent->triggerInData;
+    event->audio_config.sample_rate = halEvent->audioConfig.sampleRateHz;
+    event->audio_config.channel_mask = (audio_channel_mask_t)halEvent->audioConfig.channelMask;
+    event->audio_config.format = (audio_format_t)halEvent->audioConfig.format;
+
+    event->data_size = halEvent->data.size();
+    uint8_t *dst = (uint8_t *)event + event->data_offset;
+    uint8_t *src = (uint8_t *)&halEvent->data[0];
+    memcpy(dst, src, halEvent->data.size());
+
+    return event;
+}
+
+} // namespace android
diff --git a/services/soundtrigger/SoundTriggerHalHidl.h b/services/soundtrigger/SoundTriggerHalHidl.h
new file mode 100644
index 0000000..0c68cf1
--- /dev/null
+++ b/services/soundtrigger/SoundTriggerHalHidl.h
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_SOUNDTRIGGER_HAL_HIDL_H
+#define ANDROID_HARDWARE_SOUNDTRIGGER_HAL_HIDL_H
+
+#include <stdatomic.h>
+#include <utils/RefBase.h>
+#include <utils/KeyedVector.h>
+#include <utils/Vector.h>
+#include <utils/threads.h>
+#include "SoundTriggerHalInterface.h"
+#include <android/hardware/soundtrigger/2.0/types.h>
+#include <android/hardware/soundtrigger/2.0/ISoundTriggerHw.h>
+#include <android/hardware/soundtrigger/2.0/ISoundTriggerHwCallback.h>
+
+namespace android {
+
+using android::hardware::audio::common::V2_0::Uuid;
+using android::hardware::soundtrigger::V2_0::ConfidenceLevel;
+using android::hardware::soundtrigger::V2_0::PhraseRecognitionExtra;
+using android::hardware::soundtrigger::V2_0::SoundModelType;
+using android::hardware::soundtrigger::V2_0::SoundModelHandle;
+using android::hardware::soundtrigger::V2_0::ISoundTriggerHw;
+using android::hardware::soundtrigger::V2_0::ISoundTriggerHwCallback;
+
+class SoundTriggerHalHidl : public SoundTriggerHalInterface,
+                            public virtual ISoundTriggerHwCallback
+
+{
+public:
+        virtual int getProperties(struct sound_trigger_properties *properties);
+
+        /*
+         * Load a sound model. Once loaded, recognition of this model can be started and stopped.
+         * Only one active recognition per model at a time. The SoundTrigger service will handle
+         * concurrent recognition requests by different users/applications on the same model.
+         * The implementation returns a unique handle used by other functions (unload_sound_model(),
+         * start_recognition(), etc...
+         */
+        virtual int loadSoundModel(struct sound_trigger_sound_model *sound_model,
+                                sound_model_callback_t callback,
+                                void *cookie,
+                                sound_model_handle_t *handle);
+
+        /*
+         * Unload a sound model. A sound model can be unloaded to make room for a new one to overcome
+         * implementation limitations.
+         */
+        virtual int unloadSoundModel(sound_model_handle_t handle);
+
+        /* Start recognition on a given model. Only one recognition active at a time per model.
+         * Once recognition succeeds of fails, the callback is called.
+         * TODO: group recognition configuration parameters into one struct and add key phrase options.
+         */
+        virtual int startRecognition(sound_model_handle_t handle,
+                                 const struct sound_trigger_recognition_config *config,
+                                 recognition_callback_t callback,
+                                 void *cookie);
+
+        /* Stop recognition on a given model.
+         * The implementation does not have to call the callback when stopped via this method.
+         */
+        virtual int stopRecognition(sound_model_handle_t handle);
+
+        /* Stop recognition on all models.
+         * Only supported for device api versions SOUND_TRIGGER_DEVICE_API_VERSION_1_1 or above.
+         * If no implementation is provided, stop_recognition will be called for each running model.
+         */
+        virtual int stopAllRecognitions();
+
+        // ISoundTriggerHwCallback
+        virtual ::android::hardware::Return<void> recognitionCallback(
+                const ISoundTriggerHwCallback::RecognitionEvent& event, CallbackCookie cookie);
+        virtual ::android::hardware::Return<void> phraseRecognitionCallback(
+                const ISoundTriggerHwCallback::PhraseRecognitionEvent& event, int32_t cookie);
+        virtual ::android::hardware::Return<void> soundModelCallback(
+                const ISoundTriggerHwCallback::ModelEvent& event, CallbackCookie cookie);
+private:
+        class SoundModel : public RefBase {
+        public:
+            SoundModel(sound_model_handle_t handle, sound_model_callback_t callback,
+                       void *cookie, android::hardware::soundtrigger::V2_0::SoundModelHandle halHandle)
+                 : mHandle(handle), mHalHandle(halHandle),
+                   mSoundModelCallback(callback), mSoundModelCookie(cookie),
+                   mRecognitionCallback(NULL), mRecognitionCookie(NULL) {}
+            ~SoundModel() {}
+
+            sound_model_handle_t   mHandle;
+            android::hardware::soundtrigger::V2_0::SoundModelHandle mHalHandle;
+            sound_model_callback_t mSoundModelCallback;
+            void *                 mSoundModelCookie;
+            recognition_callback_t mRecognitionCallback;
+            void *                 mRecognitionCookie;
+        };
+
+        friend class SoundTriggerHalInterface;
+
+        explicit SoundTriggerHalHidl(const char *moduleName = NULL);
+        virtual  ~SoundTriggerHalHidl();
+
+        void convertUuidToHal(Uuid *halUuid,
+                              const sound_trigger_uuid_t *uuid);
+        void convertUuidFromHal(sound_trigger_uuid_t *uuid,
+                                const Uuid *halUuid);
+
+        void convertPropertiesFromHal(
+                struct sound_trigger_properties *properties,
+                const ISoundTriggerHw::Properties *halProperties);
+
+        void convertTriggerPhraseToHal(
+                ISoundTriggerHw::Phrase *halTriggerPhrase,
+                const struct sound_trigger_phrase *triggerPhrase);
+        ISoundTriggerHw::SoundModel *convertSoundModelToHal(
+                const struct sound_trigger_sound_model *soundModel);
+
+        void convertPhraseRecognitionExtraToHal(
+                PhraseRecognitionExtra *halExtra,
+                const struct sound_trigger_phrase_recognition_extra *extra);
+        ISoundTriggerHw::RecognitionConfig *convertRecognitionConfigToHal(
+                const struct sound_trigger_recognition_config *config);
+
+        struct sound_trigger_model_event *convertSoundModelEventFromHal(
+                                              const ISoundTriggerHwCallback::ModelEvent *halEvent);
+        void convertPhraseRecognitionExtraFromHal(
+                struct sound_trigger_phrase_recognition_extra *extra,
+                const PhraseRecognitionExtra *halExtra);
+        struct sound_trigger_recognition_event *convertRecognitionEventFromHal(
+                const ISoundTriggerHwCallback::RecognitionEvent *halEvent);
+
+        uint32_t nextUniqueId();
+        sp<ISoundTriggerHw> getService();
+        sp<SoundModel> getModel(sound_model_handle_t handle);
+        sp<SoundModel> removeModel(sound_model_handle_t handle);
+
+        static pthread_once_t sOnceControl;
+        static void sOnceInit();
+
+        Mutex mLock;
+        Mutex mHalLock;
+        const char *mModuleName;
+        volatile atomic_uint_fast32_t  mNextUniqueId;
+        // Effect chains without a valid thread
+        DefaultKeyedVector< sound_model_handle_t , sp<SoundModel> > mSoundModels;
+        sp<::android::hardware::soundtrigger::V2_0::ISoundTriggerHw> mISoundTrigger;
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_SOUNDTRIGGER_HAL_HIDL_H
diff --git a/services/soundtrigger/SoundTriggerHalInterface.h b/services/soundtrigger/SoundTriggerHalInterface.h
new file mode 100644
index 0000000..c083195
--- /dev/null
+++ b/services/soundtrigger/SoundTriggerHalInterface.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_SOUNDTRIGGER_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_SOUNDTRIGGER_HAL_INTERFACE_H
+
+#include <utils/RefBase.h>
+#include <system/sound_trigger.h>
+#include <hardware/sound_trigger.h>
+
+namespace android {
+
+class SoundTriggerHalInterface : public virtual RefBase
+{
+public:
+        /* get a sound trigger HAL instance */
+        static sp<SoundTriggerHalInterface> connectModule(const char *moduleName);
+
+        virtual     ~SoundTriggerHalInterface() {}
+
+        virtual int getProperties(struct sound_trigger_properties *properties) = 0;
+
+        /*
+         * Load a sound model. Once loaded, recognition of this model can be started and stopped.
+         * Only one active recognition per model at a time. The SoundTrigger service will handle
+         * concurrent recognition requests by different users/applications on the same model.
+         * The implementation returns a unique handle used by other functions (unload_sound_model(),
+         * start_recognition(), etc...
+         */
+        virtual int loadSoundModel(struct sound_trigger_sound_model *sound_model,
+                                sound_model_callback_t callback,
+                                void *cookie,
+                                sound_model_handle_t *handle) = 0;
+
+        /*
+         * Unload a sound model. A sound model can be unloaded to make room for a new one to overcome
+         * implementation limitations.
+         */
+        virtual int unloadSoundModel(sound_model_handle_t handle) = 0;
+
+        /* Start recognition on a given model. Only one recognition active at a time per model.
+         * Once recognition succeeds of fails, the callback is called.
+         * TODO: group recognition configuration parameters into one struct and add key phrase options.
+         */
+        virtual int startRecognition(sound_model_handle_t handle,
+                                 const struct sound_trigger_recognition_config *config,
+                                 recognition_callback_t callback,
+                                 void *cookie) = 0;
+
+        /* Stop recognition on a given model.
+         * The implementation does not have to call the callback when stopped via this method.
+         */
+        virtual int stopRecognition(sound_model_handle_t handle) = 0;
+
+        /* Stop recognition on all models.
+         * Only supported for device api versions SOUND_TRIGGER_DEVICE_API_VERSION_1_1 or above.
+         * If no implementation is provided, stop_recognition will be called for each running model.
+         */
+        virtual int stopAllRecognitions() = 0;
+
+protected:
+        SoundTriggerHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_SOUNDTRIGGER_HAL_INTERFACE_H
diff --git a/services/soundtrigger/SoundTriggerHalLegacy.cpp b/services/soundtrigger/SoundTriggerHalLegacy.cpp
new file mode 100644
index 0000000..2b78818
--- /dev/null
+++ b/services/soundtrigger/SoundTriggerHalLegacy.cpp
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <utils/Log.h>
+#include "SoundTriggerHalLegacy.h"
+
+namespace android {
+
+/* static */
+sp<SoundTriggerHalInterface> SoundTriggerHalInterface::connectModule(const char *moduleName)
+{
+    return new SoundTriggerHalLegacy(moduleName);
+}
+
+SoundTriggerHalLegacy::SoundTriggerHalLegacy(const char *moduleName)
+    : mModuleName(moduleName), mHwDevice(NULL)
+{
+}
+
+void SoundTriggerHalLegacy::onFirstRef()
+{
+    const hw_module_t *mod;
+    int rc;
+
+    if (mModuleName == NULL) {
+        mModuleName = "primary";
+    }
+
+    rc = hw_get_module_by_class(SOUND_TRIGGER_HARDWARE_MODULE_ID, mModuleName, &mod);
+    if (rc != 0) {
+        ALOGE("couldn't load sound trigger module %s.%s (%s)",
+              SOUND_TRIGGER_HARDWARE_MODULE_ID, mModuleName, strerror(-rc));
+        return;
+    }
+    rc = sound_trigger_hw_device_open(mod, &mHwDevice);
+    if (rc != 0) {
+        ALOGE("couldn't open sound trigger hw device in %s.%s (%s)",
+              SOUND_TRIGGER_HARDWARE_MODULE_ID, mModuleName, strerror(-rc));
+        mHwDevice = NULL;
+        return;
+    }
+    if (mHwDevice->common.version < SOUND_TRIGGER_DEVICE_API_VERSION_1_0 ||
+            mHwDevice->common.version > SOUND_TRIGGER_DEVICE_API_VERSION_CURRENT) {
+        ALOGE("wrong sound trigger hw device version %04x", mHwDevice->common.version);
+        return;
+    }
+}
+
+SoundTriggerHalLegacy::~SoundTriggerHalLegacy()
+{
+    if (mHwDevice != NULL) {
+        sound_trigger_hw_device_close(mHwDevice);
+    }
+}
+
+int SoundTriggerHalLegacy::getProperties(struct sound_trigger_properties *properties)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    return mHwDevice->get_properties(mHwDevice, properties);
+}
+
+int SoundTriggerHalLegacy::loadSoundModel(struct sound_trigger_sound_model *sound_model,
+                        sound_model_callback_t callback,
+                        void *cookie,
+                        sound_model_handle_t *handle)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    return mHwDevice->load_sound_model(mHwDevice, sound_model, callback, cookie, handle);
+}
+
+int SoundTriggerHalLegacy::unloadSoundModel(sound_model_handle_t handle)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    return mHwDevice->unload_sound_model(mHwDevice, handle);
+}
+
+int SoundTriggerHalLegacy::startRecognition(sound_model_handle_t handle,
+                         const struct sound_trigger_recognition_config *config,
+                         recognition_callback_t callback,
+                         void *cookie)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    return mHwDevice->start_recognition(mHwDevice, handle, config, callback, cookie);
+}
+
+int SoundTriggerHalLegacy::stopRecognition(sound_model_handle_t handle)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    return mHwDevice->stop_recognition(mHwDevice, handle);
+}
+
+int SoundTriggerHalLegacy::stopAllRecognitions()
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    if (mHwDevice->common.version >= SOUND_TRIGGER_DEVICE_API_VERSION_1_1 &&
+     mHwDevice->stop_all_recognitions) {
+        return mHwDevice->stop_all_recognitions(mHwDevice);
+    }
+    return -ENOSYS;
+}
+
+} // namespace android
diff --git a/services/soundtrigger/SoundTriggerHalLegacy.h b/services/soundtrigger/SoundTriggerHalLegacy.h
new file mode 100644
index 0000000..52488de
--- /dev/null
+++ b/services/soundtrigger/SoundTriggerHalLegacy.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_SOUNDTRIGGER_HAL_LEGACY_H
+#define ANDROID_HARDWARE_SOUNDTRIGGER_HAL_LEGACY_H
+
+#include "SoundTriggerHalInterface.h"
+
+namespace android {
+
+class SoundTriggerHalLegacy : public SoundTriggerHalInterface
+
+{
+public:
+        virtual             ~SoundTriggerHalLegacy();
+
+        virtual int getProperties(struct sound_trigger_properties *properties);
+
+        /*
+         * Load a sound model. Once loaded, recognition of this model can be started and stopped.
+         * Only one active recognition per model at a time. The SoundTrigger service will handle
+         * concurrent recognition requests by different users/applications on the same model.
+         * The implementation returns a unique handle used by other functions (unload_sound_model(),
+         * start_recognition(), etc...
+         */
+        virtual int loadSoundModel(struct sound_trigger_sound_model *sound_model,
+                                sound_model_callback_t callback,
+                                void *cookie,
+                                sound_model_handle_t *handle);
+
+        /*
+         * Unload a sound model. A sound model can be unloaded to make room for a new one to overcome
+         * implementation limitations.
+         */
+        virtual int unloadSoundModel(sound_model_handle_t handle);
+
+        /* Start recognition on a given model. Only one recognition active at a time per model.
+         * Once recognition succeeds of fails, the callback is called.
+         * TODO: group recognition configuration parameters into one struct and add key phrase options.
+         */
+        virtual int startRecognition(sound_model_handle_t handle,
+                                 const struct sound_trigger_recognition_config *config,
+                                 recognition_callback_t callback,
+                                 void *cookie);
+
+        /* Stop recognition on a given model.
+         * The implementation does not have to call the callback when stopped via this method.
+         */
+        virtual int stopRecognition(sound_model_handle_t handle);
+
+        /* Stop recognition on all models.
+         * Only supported for device api versions SOUND_TRIGGER_DEVICE_API_VERSION_1_1 or above.
+         * If no implementation is provided, stop_recognition will be called for each running model.
+         */
+        int stopAllRecognitions();
+
+        // RefBase
+        virtual     void        onFirstRef();
+
+private:
+
+        friend class SoundTriggerHalInterface;
+
+        explicit SoundTriggerHalLegacy(const char *moduleName = NULL);
+
+        const char *mModuleName;
+        struct sound_trigger_hw_device*        mHwDevice;
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_SOUNDTRIGGER_HAL_LEGACY_H
diff --git a/services/soundtrigger/SoundTriggerHwService.cpp b/services/soundtrigger/SoundTriggerHwService.cpp
index c6dcd01..19dd41e 100644
--- a/services/soundtrigger/SoundTriggerHwService.cpp
+++ b/services/soundtrigger/SoundTriggerHwService.cpp
@@ -32,17 +32,16 @@
 #include <binder/IServiceManager.h>
 #include <binder/MemoryBase.h>
 #include <binder/MemoryHeapBase.h>
-#include <hardware/sound_trigger.h>
+#include <system/sound_trigger.h>
 #include <ServiceUtilities.h>
 #include "SoundTriggerHwService.h"
 
-namespace android {
-
 #ifdef SOUND_TRIGGER_USE_STUB_MODULE
 #define HW_MODULE_PREFIX "stub"
 #else
 #define HW_MODULE_PREFIX "primary"
 #endif
+namespace android {
 
 SoundTriggerHwService::SoundTriggerHwService()
     : BnSoundTriggerHwService(),
@@ -54,30 +53,17 @@
 
 void SoundTriggerHwService::onFirstRef()
 {
-    const hw_module_t *mod;
     int rc;
-    sound_trigger_hw_device *dev;
 
-    rc = hw_get_module_by_class(SOUND_TRIGGER_HARDWARE_MODULE_ID, HW_MODULE_PREFIX, &mod);
-    if (rc != 0) {
-        ALOGE("couldn't load sound trigger module %s.%s (%s)",
-              SOUND_TRIGGER_HARDWARE_MODULE_ID, HW_MODULE_PREFIX, strerror(-rc));
-        return;
-    }
-    rc = sound_trigger_hw_device_open(mod, &dev);
-    if (rc != 0) {
-        ALOGE("couldn't open sound trigger hw device in %s.%s (%s)",
-              SOUND_TRIGGER_HARDWARE_MODULE_ID, HW_MODULE_PREFIX, strerror(-rc));
-        return;
-    }
-    if (dev->common.version < SOUND_TRIGGER_DEVICE_API_VERSION_1_0 ||
-        dev->common.version > SOUND_TRIGGER_DEVICE_API_VERSION_CURRENT) {
-        ALOGE("wrong sound trigger hw device version %04x", dev->common.version);
-        return;
-    }
+    sp<SoundTriggerHalInterface> halInterface =
+            SoundTriggerHalInterface::connectModule(HW_MODULE_PREFIX);
 
+    if (halInterface == 0) {
+        ALOGW("could not connect to HAL");
+        return;
+    }
     sound_trigger_module_descriptor descriptor;
-    rc = dev->get_properties(dev, &descriptor.properties);
+    rc = halInterface->getProperties(&descriptor.properties);
     if (rc != 0) {
         ALOGE("could not read implementation properties");
         return;
@@ -87,8 +73,7 @@
     ALOGI("loaded default module %s, handle %d", descriptor.properties.description,
                                                  descriptor.handle);
 
-    sp<ISoundTriggerClient> client;
-    sp<Module> module = new Module(this, dev, descriptor, client);
+    sp<Module> module = new Module(this, halInterface, descriptor);
     mModules.add(descriptor.handle, module);
     mCallbackThread = new CallbackThread(this);
 }
@@ -98,9 +83,6 @@
     if (mCallbackThread != 0) {
         mCallbackThread->exit();
     }
-    for (size_t i = 0; i < mModules.size(); i++) {
-        sound_trigger_hw_device_close(mModules.valueAt(i)->hwDevice());
-    }
 }
 
 status_t SoundTriggerHwService::listModules(struct sound_trigger_module_descriptor *modules,
@@ -143,11 +125,13 @@
     }
     sp<Module> module = mModules.valueAt(index);
 
-    module->setClient(client);
-    IInterface::asBinder(client)->linkToDeath(module);
-    moduleInterface = module;
+    sp<ModuleClient> moduleClient = module->addClient(client);
+    if (moduleClient == 0) {
+        return NO_INIT;
+    }
 
-    module->setCaptureState_l(mCaptureState);
+    moduleClient->setCaptureState_l(mCaptureState);
+    moduleInterface = moduleClient;
 
     return NO_ERROR;
 }
@@ -164,14 +148,6 @@
 }
 
 
-void SoundTriggerHwService::detachModule(sp<Module> module)
-{
-    ALOGV("detachModule");
-    AutoMutex lock(mServiceLock);
-    module->clearClient();
-}
-
-
 static const int kDumpLockRetries = 50;
 static const int kDumpLockSleep = 60000;
 
@@ -293,8 +269,10 @@
          return;
      }
 
-     sendCallbackEvent_l(new CallbackEvent(CallbackEvent::TYPE_RECOGNITION,
-                                                  eventMemory, strongModule));
+    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_RECOGNITION,
+                                                        eventMemory);
+    callbackEvent->setModule(strongModule);
+    sendCallbackEvent_l(callbackEvent);
 }
 
 // static
@@ -346,8 +324,10 @@
     if (strongModule == 0) {
         return;
     }
-    sendCallbackEvent_l(new CallbackEvent(CallbackEvent::TYPE_SOUNDMODEL,
-                                                 eventMemory, strongModule));
+    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_SOUNDMODEL,
+                                                        eventMemory);
+    callbackEvent->setModule(strongModule);
+    sendCallbackEvent_l(callbackEvent);
 }
 
 
@@ -383,8 +363,23 @@
     if (strongModule == 0) {
         return;
     }
-    sendCallbackEvent_l(new CallbackEvent(CallbackEvent::TYPE_SERVICE_STATE,
-                                                 eventMemory, strongModule));
+    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_SERVICE_STATE,
+                                                        eventMemory);
+    callbackEvent->setModule(strongModule);
+    sendCallbackEvent_l(callbackEvent);
+}
+
+void SoundTriggerHwService::sendServiceStateEvent_l(sound_trigger_service_state_t state,
+                                                    ModuleClient *moduleClient)
+{
+    sp<IMemory> eventMemory = prepareServiceStateEvent_l(state);
+    if (eventMemory == 0) {
+        return;
+    }
+    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_SERVICE_STATE,
+                                                        eventMemory);
+    callbackEvent->setModuleClient(moduleClient);
+    sendCallbackEvent_l(callbackEvent);
 }
 
 // call with mServiceLock held
@@ -397,14 +392,25 @@
 {
     ALOGV("onCallbackEvent");
     sp<Module> module;
+    sp<ModuleClient> moduleClient;
     {
         AutoMutex lock(mServiceLock);
+        //CallbackEvent is either for Module or ModuleClient
         module = event->mModule.promote();
         if (module == 0) {
-            return;
+            moduleClient = event->mModuleClient.promote();
+            if (moduleClient == 0) {
+                return;
+            }
         }
     }
-    module->onCallbackEvent(event);
+    if (module != 0) {
+        ALOGV("onCallbackEvent for module");
+        module->onCallbackEvent(event);
+    } else if (moduleClient != 0) {
+        ALOGV("onCallbackEvent for moduleClient");
+        moduleClient->onCallbackEvent(event);
+    }
     {
         AutoMutex lock(mServiceLock);
         // clear now to execute with mServiceLock locked
@@ -474,9 +480,8 @@
     mCallbackCond.signal();
 }
 
-SoundTriggerHwService::CallbackEvent::CallbackEvent(event_type type, sp<IMemory> memory,
-                                                    wp<Module> module)
-    : mType(type), mMemory(memory), mModule(module)
+SoundTriggerHwService::CallbackEvent::CallbackEvent(event_type type, sp<IMemory> memory)
+    : mType(type), mMemory(memory)
 {
 }
 
@@ -489,61 +494,90 @@
 #define LOG_TAG "SoundTriggerHwService::Module"
 
 SoundTriggerHwService::Module::Module(const sp<SoundTriggerHwService>& service,
-                                      sound_trigger_hw_device* hwDevice,
-                                      sound_trigger_module_descriptor descriptor,
-                                      const sp<ISoundTriggerClient>& client)
- : mService(service), mHwDevice(hwDevice), mDescriptor(descriptor),
-   mClient(client), mServiceState(SOUND_TRIGGER_STATE_NO_INIT)
+                                      const sp<SoundTriggerHalInterface>& halInterface,
+                                      sound_trigger_module_descriptor descriptor)
+ : mService(service), mHalInterface(halInterface), mDescriptor(descriptor),
+   mServiceState(SOUND_TRIGGER_STATE_NO_INIT)
 {
 }
 
 SoundTriggerHwService::Module::~Module() {
+    mModuleClients.clear();
 }
 
-void SoundTriggerHwService::Module::detach() {
-    ALOGV("detach()");
-    if (!captureHotwordAllowed()) {
-        return;
+sp<SoundTriggerHwService::ModuleClient>
+SoundTriggerHwService::Module::addClient(const sp<ISoundTriggerClient>& client)
+{
+    AutoMutex lock(mLock);
+    sp<ModuleClient> moduleClient;
+
+    for (size_t i = 0; i < mModuleClients.size(); i++) {
+        if (mModuleClients[i]->client() == client) {
+            // Client already present, reuse client
+            return moduleClient;
+        }
     }
+    moduleClient = new ModuleClient(this, client);
+
+    ALOGV("addClient() client %p", moduleClient.get());
+    mModuleClients.add(moduleClient);
+
+    return moduleClient;
+}
+
+void SoundTriggerHwService::Module::detach(const sp<ModuleClient>& moduleClient)
+{
+    ALOGV("Module::detach()");
     Vector<audio_session_t> releasedSessions;
 
     {
         AutoMutex lock(mLock);
-        for (size_t i = 0; i < mModels.size(); i++) {
-            sp<Model> model = mModels.valueAt(i);
-            ALOGV("detach() unloading model %d", model->mHandle);
-            if (model->mState == Model::STATE_ACTIVE) {
-                mHwDevice->stop_recognition(mHwDevice, model->mHandle);
+        ssize_t index = -1;
+
+        for (size_t i = 0; i < mModuleClients.size(); i++) {
+            if (mModuleClients[i] == moduleClient) {
+                index = i;
+                break;
             }
-            mHwDevice->unload_sound_model(mHwDevice, model->mHandle);
-            releasedSessions.add(model->mCaptureSession);
         }
-        mModels.clear();
+        if (index == -1) {
+            return;
+        }
+
+        ALOGV("remove client %p", moduleClient.get());
+        mModuleClients.removeAt(index);
+
+        // Iterate in reverse order as models are removed from list inside the loop.
+        for (size_t i = mModels.size(); i > 0; i--) {
+            sp<Model> model = mModels.valueAt(i - 1);
+            if (moduleClient == model->mModuleClient) {
+                mModels.removeItemsAt(i - 1);
+                ALOGV("detach() unloading model %d", model->mHandle);
+                if (mHalInterface != 0) {
+                    if (model->mState == Model::STATE_ACTIVE) {
+                        mHalInterface->stopRecognition(model->mHandle);
+                    }
+                    mHalInterface->unloadSoundModel(model->mHandle);
+                }
+                releasedSessions.add(model->mCaptureSession);
+            }
+        }
     }
 
     for (size_t i = 0; i < releasedSessions.size(); i++) {
         // do not call AudioSystem methods with mLock held
         AudioSystem::releaseSoundTriggerSession(releasedSessions[i]);
     }
-
-    if (mClient != 0) {
-        IInterface::asBinder(mClient)->unlinkToDeath(this);
-    }
-    sp<SoundTriggerHwService> service = mService.promote();
-    if (service == 0) {
-        return;
-    }
-    service->detachModule(this);
 }
 
 status_t SoundTriggerHwService::Module::loadSoundModel(const sp<IMemory>& modelMemory,
-                                sound_model_handle_t *handle)
+                                                       sp<ModuleClient> moduleClient,
+                                                       sound_model_handle_t *handle)
 {
     ALOGV("loadSoundModel() handle");
-    if (!captureHotwordAllowed()) {
-        return PERMISSION_DENIED;
+    if (mHalInterface == 0) {
+        return NO_INIT;
     }
-
     if (modelMemory == 0 || modelMemory->pointer() == NULL) {
         ALOGE("loadSoundModel() modelMemory is 0 or has NULL pointer()");
         return BAD_VALUE;
@@ -586,19 +620,17 @@
             goto exit;
         }
 
-        status_t status = mHwDevice->load_sound_model(mHwDevice,
-                                                      sound_model,
+        status = mHalInterface->loadSoundModel(sound_model,
                                                       SoundTriggerHwService::soundModelCallback,
-                                                      this,
-                                                      handle);
+                                                      this, handle);
         if (status != NO_ERROR) {
             goto exit;
         }
 
-        sp<Model> model = new Model(*handle, session, ioHandle, device, sound_model->type);
+        sp<Model> model = new Model(*handle, session, ioHandle, device, sound_model->type,
+                                    moduleClient);
         mModels.replaceValueFor(*handle, model);
     }
-
 exit:
     if (status != NO_ERROR) {
         // do not call AudioSystem methods with mLock held
@@ -610,27 +642,28 @@
 status_t SoundTriggerHwService::Module::unloadSoundModel(sound_model_handle_t handle)
 {
     ALOGV("unloadSoundModel() model handle %d", handle);
-    if (!captureHotwordAllowed()) {
-        return PERMISSION_DENIED;
-    }
     status_t status;
     audio_session_t session;
 
     {
-      AutoMutex lock(mLock);
-      ssize_t index = mModels.indexOfKey(handle);
-      if (index < 0) {
-          return BAD_VALUE;
-      }
-      sp<Model> model = mModels.valueAt(index);
-      mModels.removeItem(handle);
-      if (model->mState == Model::STATE_ACTIVE) {
-          mHwDevice->stop_recognition(mHwDevice, model->mHandle);
-          model->mState = Model::STATE_IDLE;
-      }
-      status = mHwDevice->unload_sound_model(mHwDevice, handle);
-      session = model->mCaptureSession;
+        AutoMutex lock(mLock);
+        if (mHalInterface == 0) {
+            return NO_INIT;
+        }
+        ssize_t index = mModels.indexOfKey(handle);
+        if (index < 0) {
+            return BAD_VALUE;
+        }
+        sp<Model> model = mModels.valueAt(index);
+        mModels.removeItem(handle);
+        if (model->mState == Model::STATE_ACTIVE) {
+            mHalInterface->stopRecognition(model->mHandle);
+            model->mState = Model::STATE_IDLE;
+        }
+        status = mHalInterface->unloadSoundModel(handle);
+        session = model->mCaptureSession;
     }
+    // do not call AudioSystem methods with mLock held
     AudioSystem::releaseSoundTriggerSession(session);
     return status;
 }
@@ -639,10 +672,9 @@
                                  const sp<IMemory>& dataMemory)
 {
     ALOGV("startRecognition() model handle %d", handle);
-    if (!captureHotwordAllowed()) {
-        return PERMISSION_DENIED;
+    if (mHalInterface == 0) {
+        return NO_INIT;
     }
-
     if (dataMemory == 0 || dataMemory->pointer() == NULL) {
         ALOGE("startRecognition() dataMemory is 0 or has NULL pointer()");
         return BAD_VALUE;
@@ -677,7 +709,7 @@
     //TODO: get capture handle and device from audio policy service
     config->capture_handle = model->mCaptureIOHandle;
     config->capture_device = model->mCaptureDevice;
-    status_t status = mHwDevice->start_recognition(mHwDevice, handle, config,
+    status_t status = mHalInterface->startRecognition(handle, config,
                                         SoundTriggerHwService::recognitionCallback,
                                         this);
 
@@ -692,10 +724,9 @@
 status_t SoundTriggerHwService::Module::stopRecognition(sound_model_handle_t handle)
 {
     ALOGV("stopRecognition() model handle %d", handle);
-    if (!captureHotwordAllowed()) {
-        return PERMISSION_DENIED;
+    if (mHalInterface == 0) {
+        return NO_INIT;
     }
-
     AutoMutex lock(mLock);
     sp<Model> model = getModel(handle);
     if (model == 0) {
@@ -705,12 +736,11 @@
     if (model->mState != Model::STATE_ACTIVE) {
         return INVALID_OPERATION;
     }
-    mHwDevice->stop_recognition(mHwDevice, handle);
+    mHalInterface->stopRecognition(handle);
     model->mState = Model::STATE_IDLE;
     return NO_ERROR;
 }
 
-
 void SoundTriggerHwService::Module::onCallbackEvent(const sp<CallbackEvent>& event)
 {
     ALOGV("onCallbackEvent type %d", event->mType);
@@ -720,8 +750,8 @@
     if (eventMemory == 0 || eventMemory->pointer() == NULL) {
         return;
     }
-    if (mClient == 0) {
-        ALOGI("%s mClient == 0", __func__);
+    if (mModuleClients.isEmpty()) {
+        ALOGI("%s no clients", __func__);
         return;
     }
 
@@ -744,7 +774,7 @@
 
             recognitionEvent->capture_session = model->mCaptureSession;
             model->mState = Model::STATE_IDLE;
-            client = mClient;
+            client = model->mModuleClient->client();
         }
         if (client != 0) {
             client->onRecognitionEvent(eventMemory);
@@ -761,20 +791,24 @@
                 ALOGW("%s model == 0", __func__);
                 return;
             }
-            client = mClient;
+            client = model->mModuleClient->client();
         }
         if (client != 0) {
             client->onSoundModelEvent(eventMemory);
         }
     } break;
     case CallbackEvent::TYPE_SERVICE_STATE: {
-        sp<ISoundTriggerClient> client;
+        Vector< sp<ISoundTriggerClient> > clients;
         {
             AutoMutex lock(mLock);
-            client = mClient;
+            for (size_t i = 0; i < mModuleClients.size(); i++) {
+                if (mModuleClients[i] != 0) {
+                    clients.add(mModuleClients[i]->client());
+                }
+            }
         }
-        if (client != 0) {
-            client->onServiceStateChange(eventMemory);
+        for (size_t i = 0; i < clients.size(); i++) {
+            clients[i]->onServiceStateChange(eventMemory);
         }
     } break;
     default:
@@ -793,12 +827,6 @@
     return model;
 }
 
-void SoundTriggerHwService::Module::binderDied(
-    const wp<IBinder> &who __unused) {
-    ALOGW("client binder died for module %d", mDescriptor.handle);
-    detach();
-}
-
 // Called with mServiceLock held
 void SoundTriggerHwService::Module::setCaptureState_l(bool active)
 {
@@ -828,18 +856,13 @@
         }
 
         const bool supports_stop_all =
-            (mHwDevice->common.version >= SOUND_TRIGGER_DEVICE_API_VERSION_1_1 &&
-             mHwDevice->stop_all_recognitions);
-
-        if (supports_stop_all) {
-            mHwDevice->stop_all_recognitions(mHwDevice);
-        }
+                (mHalInterface != 0) && (mHalInterface->stopAllRecognitions() == ENOSYS);
 
         for (size_t i = 0; i < mModels.size(); i++) {
             sp<Model> model = mModels.valueAt(i);
             if (model->mState == Model::STATE_ACTIVE) {
-                if (!supports_stop_all) {
-                    mHwDevice->stop_recognition(mHwDevice, model->mHandle);
+                if (mHalInterface != 0 && !supports_stop_all) {
+                    mHalInterface->stopRecognition(model->mHandle);
                 }
                 // keep model in ACTIVE state so that event is processed by onCallbackEvent()
                 if (model->mType == SOUND_MODEL_TYPE_KEYPHRASE) {
@@ -887,8 +910,10 @@
     }
 
     for (size_t i = 0; i < events.size(); i++) {
-        service->sendCallbackEvent_l(new CallbackEvent(CallbackEvent::TYPE_RECOGNITION, events[i],
-                                                     this));
+        sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_RECOGNITION,
+                                                            events[i]);
+        callbackEvent->setModule(this);
+        service->sendCallbackEvent_l(callbackEvent);
     }
 
 exit:
@@ -898,17 +923,173 @@
 
 SoundTriggerHwService::Model::Model(sound_model_handle_t handle, audio_session_t session,
                                     audio_io_handle_t ioHandle, audio_devices_t device,
-                                    sound_trigger_sound_model_type_t type) :
+                                    sound_trigger_sound_model_type_t type,
+                                    sp<ModuleClient>& moduleClient) :
     mHandle(handle), mState(STATE_IDLE), mCaptureSession(session),
-    mCaptureIOHandle(ioHandle), mCaptureDevice(device), mType(type)
+    mCaptureIOHandle(ioHandle), mCaptureDevice(device), mType(type),
+    mModuleClient(moduleClient)
 {
-
 }
 
-status_t SoundTriggerHwService::Module::dump(int fd __unused,
-                                             const Vector<String16>& args __unused) {
+#undef LOG_TAG
+#define LOG_TAG "SoundTriggerHwService::ModuleClient"
+
+SoundTriggerHwService::ModuleClient::ModuleClient(const sp<Module>& module,
+                                                  const sp<ISoundTriggerClient>& client)
+ : mModule(module), mClient(client)
+{
+}
+
+void SoundTriggerHwService::ModuleClient::onFirstRef()
+{
+    sp<IBinder> binder = IInterface::asBinder(mClient);
+    if (binder != 0) {
+        binder->linkToDeath(this);
+    }
+}
+
+SoundTriggerHwService::ModuleClient::~ModuleClient()
+{
+}
+
+status_t SoundTriggerHwService::ModuleClient::dump(int fd __unused,
+                                                   const Vector<String16>& args __unused) {
     String8 result;
     return NO_ERROR;
 }
 
+void SoundTriggerHwService::ModuleClient::detach() {
+    ALOGV("detach()");
+    if (!captureHotwordAllowed()) {
+        return;
+    }
+
+    {
+        AutoMutex lock(mLock);
+        if (mClient != 0) {
+            IInterface::asBinder(mClient)->unlinkToDeath(this);
+            mClient.clear();
+        }
+    }
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return;
+    }
+    module->detach(this);
+}
+
+status_t SoundTriggerHwService::ModuleClient::loadSoundModel(const sp<IMemory>& modelMemory,
+                                sound_model_handle_t *handle)
+{
+    ALOGV("loadSoundModel() handle");
+    if (!captureHotwordAllowed()) {
+        return PERMISSION_DENIED;
+    }
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return NO_INIT;
+    }
+    return module->loadSoundModel(modelMemory, this, handle);
+}
+
+status_t SoundTriggerHwService::ModuleClient::unloadSoundModel(sound_model_handle_t handle)
+{
+    ALOGV("unloadSoundModel() model handle %d", handle);
+    if (!captureHotwordAllowed()) {
+        return PERMISSION_DENIED;
+    }
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return NO_INIT;
+    }
+    return module->unloadSoundModel(handle);
+}
+
+status_t SoundTriggerHwService::ModuleClient::startRecognition(sound_model_handle_t handle,
+                                 const sp<IMemory>& dataMemory)
+{
+    ALOGV("startRecognition() model handle %d", handle);
+    if (!captureHotwordAllowed()) {
+        return PERMISSION_DENIED;
+    }
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return NO_INIT;
+    }
+    return module->startRecognition(handle, dataMemory);
+}
+
+status_t SoundTriggerHwService::ModuleClient::stopRecognition(sound_model_handle_t handle)
+{
+    ALOGV("stopRecognition() model handle %d", handle);
+    if (!captureHotwordAllowed()) {
+        return PERMISSION_DENIED;
+    }
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return NO_INIT;
+    }
+    return module->stopRecognition(handle);
+}
+
+void SoundTriggerHwService::ModuleClient::setCaptureState_l(bool active)
+{
+    ALOGV("ModuleClient::setCaptureState_l %d", active);
+    sp<SoundTriggerHwService> service;
+    sound_trigger_service_state_t state;
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return;
+    }
+    {
+        AutoMutex lock(mLock);
+        state = (active && !module->isConcurrentCaptureAllowed()) ?
+                                        SOUND_TRIGGER_STATE_DISABLED : SOUND_TRIGGER_STATE_ENABLED;
+
+        service = module->service().promote();
+        if (service == 0) {
+            return;
+        }
+    }
+    service->sendServiceStateEvent_l(state, this);
+}
+
+void SoundTriggerHwService::ModuleClient::onCallbackEvent(const sp<CallbackEvent>& event)
+{
+    ALOGV("ModuleClient onCallbackEvent type %d", event->mType);
+
+    sp<IMemory> eventMemory = event->mMemory;
+
+    if (eventMemory == 0 || eventMemory->pointer() == NULL) {
+        return;
+    }
+
+    switch (event->mType) {
+    case CallbackEvent::TYPE_SERVICE_STATE: {
+        sp<ISoundTriggerClient> client;
+        {
+            AutoMutex lock(mLock);
+            client = mClient;
+        }
+        if (client !=0 ) {
+            client->onServiceStateChange(eventMemory);
+        }
+    } break;
+    default:
+        LOG_ALWAYS_FATAL("onCallbackEvent unknown event type %d", event->mType);
+    }
+}
+
+void SoundTriggerHwService::ModuleClient::binderDied(
+    const wp<IBinder> &who __unused) {
+    ALOGW("client binder died for client %p", this);
+    detach();
+}
+
 }; // namespace android
diff --git a/services/soundtrigger/SoundTriggerHwService.h b/services/soundtrigger/SoundTriggerHwService.h
index d05dacd..95efc4b 100644
--- a/services/soundtrigger/SoundTriggerHwService.h
+++ b/services/soundtrigger/SoundTriggerHwService.h
@@ -26,7 +26,7 @@
 #include <soundtrigger/ISoundTrigger.h>
 #include <soundtrigger/ISoundTriggerClient.h>
 #include <system/sound_trigger.h>
-#include <hardware/sound_trigger.h>
+#include "SoundTriggerHalInterface.h"
 
 namespace android {
 
@@ -39,6 +39,7 @@
     friend class BinderService<SoundTriggerHwService>;
 public:
     class Module;
+    class ModuleClient;
 
     static char const* getServiceName() { return "media.sound_trigger_hw"; }
 
@@ -69,7 +70,8 @@
         };
 
         Model(sound_model_handle_t handle, audio_session_t session, audio_io_handle_t ioHandle,
-              audio_devices_t device, sound_trigger_sound_model_type_t type);
+              audio_devices_t device, sound_trigger_sound_model_type_t type,
+              sp<ModuleClient>& moduleClient);
         ~Model() {}
 
         sound_model_handle_t    mHandle;
@@ -79,6 +81,7 @@
         audio_devices_t         mCaptureDevice;
         sound_trigger_sound_model_type_t mType;
         struct sound_trigger_recognition_config mConfig;
+        sp<ModuleClient>        mModuleClient;
     };
 
     class CallbackEvent : public RefBase {
@@ -88,27 +91,74 @@
             TYPE_SOUNDMODEL,
             TYPE_SERVICE_STATE,
         } event_type;
-        CallbackEvent(event_type type, sp<IMemory> memory, wp<Module> module);
+        CallbackEvent(event_type type, sp<IMemory> memory);
 
         virtual             ~CallbackEvent();
 
+        void setModule(wp<Module> module) { mModule = module; }
+        void setModuleClient(wp<ModuleClient> moduleClient) { mModuleClient = moduleClient; }
+
         event_type mType;
         sp<IMemory> mMemory;
         wp<Module> mModule;
+        wp<ModuleClient> mModuleClient;
     };
 
-    class Module : public virtual RefBase,
-                   public BnSoundTrigger,
-                   public IBinder::DeathRecipient     {
+    class Module : public RefBase {
     public:
 
        Module(const sp<SoundTriggerHwService>& service,
-              sound_trigger_hw_device* hwDevice,
-              sound_trigger_module_descriptor descriptor,
-              const sp<ISoundTriggerClient>& client);
+              const sp<SoundTriggerHalInterface>& halInterface,
+              sound_trigger_module_descriptor descriptor);
 
        virtual ~Module();
 
+       virtual status_t loadSoundModel(const sp<IMemory>& modelMemory,
+                                       sp<ModuleClient> moduleClient,
+                                       sound_model_handle_t *handle);
+
+       virtual status_t unloadSoundModel(sound_model_handle_t handle);
+
+       virtual status_t startRecognition(sound_model_handle_t handle,
+                                         const sp<IMemory>& dataMemory);
+       virtual status_t stopRecognition(sound_model_handle_t handle);
+
+       sp<SoundTriggerHalInterface> halInterface() const { return mHalInterface; }
+       struct sound_trigger_module_descriptor descriptor() { return mDescriptor; }
+       wp<SoundTriggerHwService> service() const { return mService; }
+       bool isConcurrentCaptureAllowed() const { return mDescriptor.properties.concurrent_capture; }
+
+       sp<Model> getModel(sound_model_handle_t handle);
+
+       void setCaptureState_l(bool active);
+
+       sp<ModuleClient> addClient(const sp<ISoundTriggerClient>& client);
+
+       void detach(const sp<ModuleClient>& moduleClient);
+
+       void onCallbackEvent(const sp<CallbackEvent>& event);
+
+    private:
+
+        Mutex                                  mLock;
+        wp<SoundTriggerHwService>              mService;
+        sp<SoundTriggerHalInterface>           mHalInterface;
+        struct sound_trigger_module_descriptor mDescriptor;
+        Vector< sp<ModuleClient> >             mModuleClients;
+        DefaultKeyedVector< sound_model_handle_t, sp<Model> >     mModels;
+        sound_trigger_service_state_t          mServiceState;
+    }; // class Module
+
+    class ModuleClient : public virtual RefBase,
+                         public BnSoundTrigger,
+                         public IBinder::DeathRecipient {
+    public:
+
+       ModuleClient(const sp<Module>& module,
+              const sp<ISoundTriggerClient>& client);
+
+       virtual ~ModuleClient();
+
        virtual void detach();
 
        virtual status_t loadSoundModel(const sp<IMemory>& modelMemory,
@@ -122,38 +172,28 @@
 
        virtual status_t dump(int fd, const Vector<String16>& args);
 
-
-       sound_trigger_hw_device *hwDevice() const { return mHwDevice; }
-       struct sound_trigger_module_descriptor descriptor() { return mDescriptor; }
-       void setClient(sp<ISoundTriggerClient> client) { mClient = client; }
-       void clearClient() { mClient.clear(); }
-       sp<ISoundTriggerClient> client() const { return mClient; }
-       wp<SoundTriggerHwService> service() const { return mService; }
-
-       void onCallbackEvent(const sp<CallbackEvent>& event);
-
-       sp<Model> getModel(sound_model_handle_t handle);
-
-       void setCaptureState_l(bool active);
+       virtual void onFirstRef();
 
        // IBinder::DeathRecipient implementation
        virtual void        binderDied(const wp<IBinder> &who);
 
+       void onCallbackEvent(const sp<CallbackEvent>& event);
+
+       void setCaptureState_l(bool active);
+
+       sp<ISoundTriggerClient> client() const { return mClient; }
+
     private:
 
-        Mutex                                  mLock;
-        wp<SoundTriggerHwService>              mService;
-        struct sound_trigger_hw_device*        mHwDevice;
-        struct sound_trigger_module_descriptor mDescriptor;
-        sp<ISoundTriggerClient>                mClient;
-        DefaultKeyedVector< sound_model_handle_t, sp<Model> >     mModels;
-        sound_trigger_service_state_t          mServiceState;
-    }; // class Module
+        mutable Mutex               mLock;
+        wp<Module>                  mModule;
+        sp<ISoundTriggerClient>     mClient;
+    }; // class ModuleClient
 
     class CallbackThread : public Thread {
     public:
 
-        CallbackThread(const wp<SoundTriggerHwService>& service);
+        explicit CallbackThread(const wp<SoundTriggerHwService>& service);
 
         virtual             ~CallbackThread();
 
@@ -173,8 +213,6 @@
         Vector< sp<CallbackEvent> > mEventQueue;
     };
 
-           void detachModule(sp<Module> module);
-
     static void recognitionCallback(struct sound_trigger_recognition_event *event, void *cookie);
            sp<IMemory> prepareRecognitionEvent_l(struct sound_trigger_recognition_event *event);
            void sendRecognitionEvent(struct sound_trigger_recognition_event *event, Module *module);
@@ -185,6 +223,8 @@
 
            sp<IMemory> prepareServiceStateEvent_l(sound_trigger_service_state_t state);
            void sendServiceStateEvent_l(sound_trigger_service_state_t state, Module *module);
+           void sendServiceStateEvent_l(sound_trigger_service_state_t state,
+                                        ModuleClient *moduleClient);
 
            void sendCallbackEvent_l(const sp<CallbackEvent>& event);
            void onCallbackEvent(const sp<CallbackEvent>& event);
diff --git a/soundtrigger/Android.mk b/soundtrigger/Android.mk
index c794cc1..e29adbf 100644
--- a/soundtrigger/Android.mk
+++ b/soundtrigger/Android.mk
@@ -27,7 +27,6 @@
 	libutils \
 	liblog \
 	libbinder \
-	libhardware
 
 #LOCAL_C_INCLUDES += \
 	system/media/camera/include \
diff --git a/soundtrigger/ISoundTrigger.cpp b/soundtrigger/ISoundTrigger.cpp
index 4df2068..25332a4 100644
--- a/soundtrigger/ISoundTrigger.cpp
+++ b/soundtrigger/ISoundTrigger.cpp
@@ -37,7 +37,7 @@
 class BpSoundTrigger: public BpInterface<ISoundTrigger>
 {
 public:
-    BpSoundTrigger(const sp<IBinder>& impl)
+    explicit BpSoundTrigger(const sp<IBinder>& impl)
         : BpInterface<ISoundTrigger>(impl)
     {
     }
diff --git a/soundtrigger/ISoundTriggerClient.cpp b/soundtrigger/ISoundTriggerClient.cpp
index e0d3add..1385631 100644
--- a/soundtrigger/ISoundTriggerClient.cpp
+++ b/soundtrigger/ISoundTriggerClient.cpp
@@ -35,7 +35,7 @@
 {
 
 public:
-    BpSoundTriggerClient(const sp<IBinder>& impl)
+    explicit BpSoundTriggerClient(const sp<IBinder>& impl)
         : BpInterface<ISoundTriggerClient>(impl)
     {
     }
diff --git a/soundtrigger/ISoundTriggerHwService.cpp b/soundtrigger/ISoundTriggerHwService.cpp
index e37bae3..d44f5cb 100644
--- a/soundtrigger/ISoundTriggerHwService.cpp
+++ b/soundtrigger/ISoundTriggerHwService.cpp
@@ -45,7 +45,7 @@
 class BpSoundTriggerHwService: public BpInterface<ISoundTriggerHwService>
 {
 public:
-    BpSoundTriggerHwService(const sp<IBinder>& impl)
+    explicit BpSoundTriggerHwService(const sp<IBinder>& impl)
         : BpInterface<ISoundTriggerHwService>(impl)
     {
     }